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 fn should_show_inline_completions(
1791 &self,
1792 buffer: &Model<Buffer>,
1793 buffer_position: language::Anchor,
1794 cx: &AppContext,
1795 ) -> bool {
1796 if !self.snippet_stack.is_empty() {
1797 return false;
1798 }
1799
1800 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
1801 return false;
1802 }
1803
1804 if let Some(provider) = self.inline_completion_provider() {
1805 if let Some(show_inline_completions) = self.show_inline_completions_override {
1806 show_inline_completions
1807 } else {
1808 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
1809 }
1810 } else {
1811 false
1812 }
1813 }
1814
1815 fn inline_completions_disabled_in_scope(
1816 &self,
1817 buffer: &Model<Buffer>,
1818 buffer_position: language::Anchor,
1819 cx: &AppContext,
1820 ) -> bool {
1821 let snapshot = buffer.read(cx).snapshot();
1822 let settings = snapshot.settings_at(buffer_position, cx);
1823
1824 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
1825 return false;
1826 };
1827
1828 scope.override_name().map_or(false, |scope_name| {
1829 settings
1830 .inline_completions_disabled_in
1831 .iter()
1832 .any(|s| s == scope_name)
1833 })
1834 }
1835
1836 pub fn set_use_modal_editing(&mut self, to: bool) {
1837 self.use_modal_editing = to;
1838 }
1839
1840 pub fn use_modal_editing(&self) -> bool {
1841 self.use_modal_editing
1842 }
1843
1844 fn selections_did_change(
1845 &mut self,
1846 local: bool,
1847 old_cursor_position: &Anchor,
1848 show_completions: bool,
1849 cx: &mut ViewContext<Self>,
1850 ) {
1851 cx.invalidate_character_coordinates();
1852
1853 // Copy selections to primary selection buffer
1854 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1855 if local {
1856 let selections = self.selections.all::<usize>(cx);
1857 let buffer_handle = self.buffer.read(cx).read(cx);
1858
1859 let mut text = String::new();
1860 for (index, selection) in selections.iter().enumerate() {
1861 let text_for_selection = buffer_handle
1862 .text_for_range(selection.start..selection.end)
1863 .collect::<String>();
1864
1865 text.push_str(&text_for_selection);
1866 if index != selections.len() - 1 {
1867 text.push('\n');
1868 }
1869 }
1870
1871 if !text.is_empty() {
1872 cx.write_to_primary(ClipboardItem::new_string(text));
1873 }
1874 }
1875
1876 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1877 self.buffer.update(cx, |buffer, cx| {
1878 buffer.set_active_selections(
1879 &self.selections.disjoint_anchors(),
1880 self.selections.line_mode,
1881 self.cursor_shape,
1882 cx,
1883 )
1884 });
1885 }
1886 let display_map = self
1887 .display_map
1888 .update(cx, |display_map, cx| display_map.snapshot(cx));
1889 let buffer = &display_map.buffer_snapshot;
1890 self.add_selections_state = None;
1891 self.select_next_state = None;
1892 self.select_prev_state = None;
1893 self.select_larger_syntax_node_stack.clear();
1894 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1895 self.snippet_stack
1896 .invalidate(&self.selections.disjoint_anchors(), buffer);
1897 self.take_rename(false, cx);
1898
1899 let new_cursor_position = self.selections.newest_anchor().head();
1900
1901 self.push_to_nav_history(
1902 *old_cursor_position,
1903 Some(new_cursor_position.to_point(buffer)),
1904 cx,
1905 );
1906
1907 if local {
1908 let new_cursor_position = self.selections.newest_anchor().head();
1909 let mut context_menu = self.context_menu.borrow_mut();
1910 let completion_menu = match context_menu.as_ref() {
1911 Some(CodeContextMenu::Completions(menu)) => Some(menu),
1912 _ => {
1913 *context_menu = None;
1914 None
1915 }
1916 };
1917
1918 if let Some(completion_menu) = completion_menu {
1919 let cursor_position = new_cursor_position.to_offset(buffer);
1920 let (word_range, kind) =
1921 buffer.surrounding_word(completion_menu.initial_position, true);
1922 if kind == Some(CharKind::Word)
1923 && word_range.to_inclusive().contains(&cursor_position)
1924 {
1925 let mut completion_menu = completion_menu.clone();
1926 drop(context_menu);
1927
1928 let query = Self::completion_query(buffer, cursor_position);
1929 cx.spawn(move |this, mut cx| async move {
1930 completion_menu
1931 .filter(query.as_deref(), cx.background_executor().clone())
1932 .await;
1933
1934 this.update(&mut cx, |this, cx| {
1935 let mut context_menu = this.context_menu.borrow_mut();
1936 let Some(CodeContextMenu::Completions(menu)) = context_menu.as_ref()
1937 else {
1938 return;
1939 };
1940
1941 if menu.id > completion_menu.id {
1942 return;
1943 }
1944
1945 *context_menu = Some(CodeContextMenu::Completions(completion_menu));
1946 drop(context_menu);
1947 cx.notify();
1948 })
1949 })
1950 .detach();
1951
1952 if show_completions {
1953 self.show_completions(&ShowCompletions { trigger: None }, cx);
1954 }
1955 } else {
1956 drop(context_menu);
1957 self.hide_context_menu(cx);
1958 }
1959 } else {
1960 drop(context_menu);
1961 }
1962
1963 hide_hover(self, cx);
1964
1965 if old_cursor_position.to_display_point(&display_map).row()
1966 != new_cursor_position.to_display_point(&display_map).row()
1967 {
1968 self.available_code_actions.take();
1969 }
1970 self.refresh_code_actions(cx);
1971 self.refresh_document_highlights(cx);
1972 refresh_matching_bracket_highlights(self, cx);
1973 self.update_visible_inline_completion(cx);
1974 linked_editing_ranges::refresh_linked_ranges(self, cx);
1975 if self.git_blame_inline_enabled {
1976 self.start_inline_blame_timer(cx);
1977 }
1978 }
1979
1980 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1981 cx.emit(EditorEvent::SelectionsChanged { local });
1982
1983 if self.selections.disjoint_anchors().len() == 1 {
1984 cx.emit(SearchEvent::ActiveMatchChanged)
1985 }
1986 cx.notify();
1987 }
1988
1989 pub fn change_selections<R>(
1990 &mut self,
1991 autoscroll: Option<Autoscroll>,
1992 cx: &mut ViewContext<Self>,
1993 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1994 ) -> R {
1995 self.change_selections_inner(autoscroll, true, cx, change)
1996 }
1997
1998 pub fn change_selections_inner<R>(
1999 &mut self,
2000 autoscroll: Option<Autoscroll>,
2001 request_completions: bool,
2002 cx: &mut ViewContext<Self>,
2003 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2004 ) -> R {
2005 let old_cursor_position = self.selections.newest_anchor().head();
2006 self.push_to_selection_history();
2007
2008 let (changed, result) = self.selections.change_with(cx, change);
2009
2010 if changed {
2011 if let Some(autoscroll) = autoscroll {
2012 self.request_autoscroll(autoscroll, cx);
2013 }
2014 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2015
2016 if self.should_open_signature_help_automatically(
2017 &old_cursor_position,
2018 self.signature_help_state.backspace_pressed(),
2019 cx,
2020 ) {
2021 self.show_signature_help(&ShowSignatureHelp, cx);
2022 }
2023 self.signature_help_state.set_backspace_pressed(false);
2024 }
2025
2026 result
2027 }
2028
2029 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2030 where
2031 I: IntoIterator<Item = (Range<S>, T)>,
2032 S: ToOffset,
2033 T: Into<Arc<str>>,
2034 {
2035 if self.read_only(cx) {
2036 return;
2037 }
2038
2039 self.buffer
2040 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2041 }
2042
2043 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2044 where
2045 I: IntoIterator<Item = (Range<S>, T)>,
2046 S: ToOffset,
2047 T: Into<Arc<str>>,
2048 {
2049 if self.read_only(cx) {
2050 return;
2051 }
2052
2053 self.buffer.update(cx, |buffer, cx| {
2054 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2055 });
2056 }
2057
2058 pub fn edit_with_block_indent<I, S, T>(
2059 &mut self,
2060 edits: I,
2061 original_indent_columns: Vec<u32>,
2062 cx: &mut ViewContext<Self>,
2063 ) where
2064 I: IntoIterator<Item = (Range<S>, T)>,
2065 S: ToOffset,
2066 T: Into<Arc<str>>,
2067 {
2068 if self.read_only(cx) {
2069 return;
2070 }
2071
2072 self.buffer.update(cx, |buffer, cx| {
2073 buffer.edit(
2074 edits,
2075 Some(AutoindentMode::Block {
2076 original_indent_columns,
2077 }),
2078 cx,
2079 )
2080 });
2081 }
2082
2083 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2084 self.hide_context_menu(cx);
2085
2086 match phase {
2087 SelectPhase::Begin {
2088 position,
2089 add,
2090 click_count,
2091 } => self.begin_selection(position, add, click_count, cx),
2092 SelectPhase::BeginColumnar {
2093 position,
2094 goal_column,
2095 reset,
2096 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2097 SelectPhase::Extend {
2098 position,
2099 click_count,
2100 } => self.extend_selection(position, click_count, cx),
2101 SelectPhase::Update {
2102 position,
2103 goal_column,
2104 scroll_delta,
2105 } => self.update_selection(position, goal_column, scroll_delta, cx),
2106 SelectPhase::End => self.end_selection(cx),
2107 }
2108 }
2109
2110 fn extend_selection(
2111 &mut self,
2112 position: DisplayPoint,
2113 click_count: usize,
2114 cx: &mut ViewContext<Self>,
2115 ) {
2116 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2117 let tail = self.selections.newest::<usize>(cx).tail();
2118 self.begin_selection(position, false, click_count, cx);
2119
2120 let position = position.to_offset(&display_map, Bias::Left);
2121 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2122
2123 let mut pending_selection = self
2124 .selections
2125 .pending_anchor()
2126 .expect("extend_selection not called with pending selection");
2127 if position >= tail {
2128 pending_selection.start = tail_anchor;
2129 } else {
2130 pending_selection.end = tail_anchor;
2131 pending_selection.reversed = true;
2132 }
2133
2134 let mut pending_mode = self.selections.pending_mode().unwrap();
2135 match &mut pending_mode {
2136 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2137 _ => {}
2138 }
2139
2140 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2141 s.set_pending(pending_selection, pending_mode)
2142 });
2143 }
2144
2145 fn begin_selection(
2146 &mut self,
2147 position: DisplayPoint,
2148 add: bool,
2149 click_count: usize,
2150 cx: &mut ViewContext<Self>,
2151 ) {
2152 if !self.focus_handle.is_focused(cx) {
2153 self.last_focused_descendant = None;
2154 cx.focus(&self.focus_handle);
2155 }
2156
2157 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2158 let buffer = &display_map.buffer_snapshot;
2159 let newest_selection = self.selections.newest_anchor().clone();
2160 let position = display_map.clip_point(position, Bias::Left);
2161
2162 let start;
2163 let end;
2164 let mode;
2165 let mut auto_scroll;
2166 match click_count {
2167 1 => {
2168 start = buffer.anchor_before(position.to_point(&display_map));
2169 end = start;
2170 mode = SelectMode::Character;
2171 auto_scroll = true;
2172 }
2173 2 => {
2174 let range = movement::surrounding_word(&display_map, position);
2175 start = buffer.anchor_before(range.start.to_point(&display_map));
2176 end = buffer.anchor_before(range.end.to_point(&display_map));
2177 mode = SelectMode::Word(start..end);
2178 auto_scroll = true;
2179 }
2180 3 => {
2181 let position = display_map
2182 .clip_point(position, Bias::Left)
2183 .to_point(&display_map);
2184 let line_start = display_map.prev_line_boundary(position).0;
2185 let next_line_start = buffer.clip_point(
2186 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2187 Bias::Left,
2188 );
2189 start = buffer.anchor_before(line_start);
2190 end = buffer.anchor_before(next_line_start);
2191 mode = SelectMode::Line(start..end);
2192 auto_scroll = true;
2193 }
2194 _ => {
2195 start = buffer.anchor_before(0);
2196 end = buffer.anchor_before(buffer.len());
2197 mode = SelectMode::All;
2198 auto_scroll = false;
2199 }
2200 }
2201 auto_scroll &= EditorSettings::get_global(cx).autoscroll_on_clicks;
2202
2203 let point_to_delete: Option<usize> = {
2204 let selected_points: Vec<Selection<Point>> =
2205 self.selections.disjoint_in_range(start..end, cx);
2206
2207 if !add || click_count > 1 {
2208 None
2209 } else if !selected_points.is_empty() {
2210 Some(selected_points[0].id)
2211 } else {
2212 let clicked_point_already_selected =
2213 self.selections.disjoint.iter().find(|selection| {
2214 selection.start.to_point(buffer) == start.to_point(buffer)
2215 || selection.end.to_point(buffer) == end.to_point(buffer)
2216 });
2217
2218 clicked_point_already_selected.map(|selection| selection.id)
2219 }
2220 };
2221
2222 let selections_count = self.selections.count();
2223
2224 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2225 if let Some(point_to_delete) = point_to_delete {
2226 s.delete(point_to_delete);
2227
2228 if selections_count == 1 {
2229 s.set_pending_anchor_range(start..end, mode);
2230 }
2231 } else {
2232 if !add {
2233 s.clear_disjoint();
2234 } else if click_count > 1 {
2235 s.delete(newest_selection.id)
2236 }
2237
2238 s.set_pending_anchor_range(start..end, mode);
2239 }
2240 });
2241 }
2242
2243 fn begin_columnar_selection(
2244 &mut self,
2245 position: DisplayPoint,
2246 goal_column: u32,
2247 reset: bool,
2248 cx: &mut ViewContext<Self>,
2249 ) {
2250 if !self.focus_handle.is_focused(cx) {
2251 self.last_focused_descendant = None;
2252 cx.focus(&self.focus_handle);
2253 }
2254
2255 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2256
2257 if reset {
2258 let pointer_position = display_map
2259 .buffer_snapshot
2260 .anchor_before(position.to_point(&display_map));
2261
2262 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2263 s.clear_disjoint();
2264 s.set_pending_anchor_range(
2265 pointer_position..pointer_position,
2266 SelectMode::Character,
2267 );
2268 });
2269 }
2270
2271 let tail = self.selections.newest::<Point>(cx).tail();
2272 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2273
2274 if !reset {
2275 self.select_columns(
2276 tail.to_display_point(&display_map),
2277 position,
2278 goal_column,
2279 &display_map,
2280 cx,
2281 );
2282 }
2283 }
2284
2285 fn update_selection(
2286 &mut self,
2287 position: DisplayPoint,
2288 goal_column: u32,
2289 scroll_delta: gpui::Point<f32>,
2290 cx: &mut ViewContext<Self>,
2291 ) {
2292 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2293
2294 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2295 let tail = tail.to_display_point(&display_map);
2296 self.select_columns(tail, position, goal_column, &display_map, cx);
2297 } else if let Some(mut pending) = self.selections.pending_anchor() {
2298 let buffer = self.buffer.read(cx).snapshot(cx);
2299 let head;
2300 let tail;
2301 let mode = self.selections.pending_mode().unwrap();
2302 match &mode {
2303 SelectMode::Character => {
2304 head = position.to_point(&display_map);
2305 tail = pending.tail().to_point(&buffer);
2306 }
2307 SelectMode::Word(original_range) => {
2308 let original_display_range = original_range.start.to_display_point(&display_map)
2309 ..original_range.end.to_display_point(&display_map);
2310 let original_buffer_range = original_display_range.start.to_point(&display_map)
2311 ..original_display_range.end.to_point(&display_map);
2312 if movement::is_inside_word(&display_map, position)
2313 || original_display_range.contains(&position)
2314 {
2315 let word_range = movement::surrounding_word(&display_map, position);
2316 if word_range.start < original_display_range.start {
2317 head = word_range.start.to_point(&display_map);
2318 } else {
2319 head = word_range.end.to_point(&display_map);
2320 }
2321 } else {
2322 head = position.to_point(&display_map);
2323 }
2324
2325 if head <= original_buffer_range.start {
2326 tail = original_buffer_range.end;
2327 } else {
2328 tail = original_buffer_range.start;
2329 }
2330 }
2331 SelectMode::Line(original_range) => {
2332 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2333
2334 let position = display_map
2335 .clip_point(position, Bias::Left)
2336 .to_point(&display_map);
2337 let line_start = display_map.prev_line_boundary(position).0;
2338 let next_line_start = buffer.clip_point(
2339 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2340 Bias::Left,
2341 );
2342
2343 if line_start < original_range.start {
2344 head = line_start
2345 } else {
2346 head = next_line_start
2347 }
2348
2349 if head <= original_range.start {
2350 tail = original_range.end;
2351 } else {
2352 tail = original_range.start;
2353 }
2354 }
2355 SelectMode::All => {
2356 return;
2357 }
2358 };
2359
2360 if head < tail {
2361 pending.start = buffer.anchor_before(head);
2362 pending.end = buffer.anchor_before(tail);
2363 pending.reversed = true;
2364 } else {
2365 pending.start = buffer.anchor_before(tail);
2366 pending.end = buffer.anchor_before(head);
2367 pending.reversed = false;
2368 }
2369
2370 self.change_selections(None, cx, |s| {
2371 s.set_pending(pending, mode);
2372 });
2373 } else {
2374 log::error!("update_selection dispatched with no pending selection");
2375 return;
2376 }
2377
2378 self.apply_scroll_delta(scroll_delta, cx);
2379 cx.notify();
2380 }
2381
2382 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2383 self.columnar_selection_tail.take();
2384 if self.selections.pending_anchor().is_some() {
2385 let selections = self.selections.all::<usize>(cx);
2386 self.change_selections(None, cx, |s| {
2387 s.select(selections);
2388 s.clear_pending();
2389 });
2390 }
2391 }
2392
2393 fn select_columns(
2394 &mut self,
2395 tail: DisplayPoint,
2396 head: DisplayPoint,
2397 goal_column: u32,
2398 display_map: &DisplaySnapshot,
2399 cx: &mut ViewContext<Self>,
2400 ) {
2401 let start_row = cmp::min(tail.row(), head.row());
2402 let end_row = cmp::max(tail.row(), head.row());
2403 let start_column = cmp::min(tail.column(), goal_column);
2404 let end_column = cmp::max(tail.column(), goal_column);
2405 let reversed = start_column < tail.column();
2406
2407 let selection_ranges = (start_row.0..=end_row.0)
2408 .map(DisplayRow)
2409 .filter_map(|row| {
2410 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2411 let start = display_map
2412 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2413 .to_point(display_map);
2414 let end = display_map
2415 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2416 .to_point(display_map);
2417 if reversed {
2418 Some(end..start)
2419 } else {
2420 Some(start..end)
2421 }
2422 } else {
2423 None
2424 }
2425 })
2426 .collect::<Vec<_>>();
2427
2428 self.change_selections(None, cx, |s| {
2429 s.select_ranges(selection_ranges);
2430 });
2431 cx.notify();
2432 }
2433
2434 pub fn has_pending_nonempty_selection(&self) -> bool {
2435 let pending_nonempty_selection = match self.selections.pending_anchor() {
2436 Some(Selection { start, end, .. }) => start != end,
2437 None => false,
2438 };
2439
2440 pending_nonempty_selection
2441 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2442 }
2443
2444 pub fn has_pending_selection(&self) -> bool {
2445 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2446 }
2447
2448 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2449 if self.clear_expanded_diff_hunks(cx) {
2450 cx.notify();
2451 return;
2452 }
2453 if self.dismiss_menus_and_popups(true, cx) {
2454 return;
2455 }
2456
2457 if self.mode == EditorMode::Full
2458 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
2459 {
2460 return;
2461 }
2462
2463 cx.propagate();
2464 }
2465
2466 pub fn dismiss_menus_and_popups(
2467 &mut self,
2468 should_report_inline_completion_event: bool,
2469 cx: &mut ViewContext<Self>,
2470 ) -> bool {
2471 if self.take_rename(false, cx).is_some() {
2472 return true;
2473 }
2474
2475 if hide_hover(self, cx) {
2476 return true;
2477 }
2478
2479 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2480 return true;
2481 }
2482
2483 if self.hide_context_menu(cx).is_some() {
2484 if self.show_inline_completions_in_menu(cx) && self.has_active_inline_completion() {
2485 self.update_visible_inline_completion(cx);
2486 }
2487 return true;
2488 }
2489
2490 if self.mouse_context_menu.take().is_some() {
2491 return true;
2492 }
2493
2494 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2495 return true;
2496 }
2497
2498 if self.snippet_stack.pop().is_some() {
2499 return true;
2500 }
2501
2502 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
2503 self.dismiss_diagnostics(cx);
2504 return true;
2505 }
2506
2507 false
2508 }
2509
2510 fn linked_editing_ranges_for(
2511 &self,
2512 selection: Range<text::Anchor>,
2513 cx: &AppContext,
2514 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2515 if self.linked_edit_ranges.is_empty() {
2516 return None;
2517 }
2518 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2519 selection.end.buffer_id.and_then(|end_buffer_id| {
2520 if selection.start.buffer_id != Some(end_buffer_id) {
2521 return None;
2522 }
2523 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2524 let snapshot = buffer.read(cx).snapshot();
2525 self.linked_edit_ranges
2526 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2527 .map(|ranges| (ranges, snapshot, buffer))
2528 })?;
2529 use text::ToOffset as TO;
2530 // find offset from the start of current range to current cursor position
2531 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2532
2533 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2534 let start_difference = start_offset - start_byte_offset;
2535 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2536 let end_difference = end_offset - start_byte_offset;
2537 // Current range has associated linked ranges.
2538 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2539 for range in linked_ranges.iter() {
2540 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2541 let end_offset = start_offset + end_difference;
2542 let start_offset = start_offset + start_difference;
2543 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2544 continue;
2545 }
2546 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
2547 if s.start.buffer_id != selection.start.buffer_id
2548 || s.end.buffer_id != selection.end.buffer_id
2549 {
2550 return false;
2551 }
2552 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
2553 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
2554 }) {
2555 continue;
2556 }
2557 let start = buffer_snapshot.anchor_after(start_offset);
2558 let end = buffer_snapshot.anchor_after(end_offset);
2559 linked_edits
2560 .entry(buffer.clone())
2561 .or_default()
2562 .push(start..end);
2563 }
2564 Some(linked_edits)
2565 }
2566
2567 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2568 let text: Arc<str> = text.into();
2569
2570 if self.read_only(cx) {
2571 return;
2572 }
2573
2574 let selections = self.selections.all_adjusted(cx);
2575 let mut bracket_inserted = false;
2576 let mut edits = Vec::new();
2577 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2578 let mut new_selections = Vec::with_capacity(selections.len());
2579 let mut new_autoclose_regions = Vec::new();
2580 let snapshot = self.buffer.read(cx).read(cx);
2581
2582 for (selection, autoclose_region) in
2583 self.selections_with_autoclose_regions(selections, &snapshot)
2584 {
2585 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2586 // Determine if the inserted text matches the opening or closing
2587 // bracket of any of this language's bracket pairs.
2588 let mut bracket_pair = None;
2589 let mut is_bracket_pair_start = false;
2590 let mut is_bracket_pair_end = false;
2591 if !text.is_empty() {
2592 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2593 // and they are removing the character that triggered IME popup.
2594 for (pair, enabled) in scope.brackets() {
2595 if !pair.close && !pair.surround {
2596 continue;
2597 }
2598
2599 if enabled && pair.start.ends_with(text.as_ref()) {
2600 let prefix_len = pair.start.len() - text.len();
2601 let preceding_text_matches_prefix = prefix_len == 0
2602 || (selection.start.column >= (prefix_len as u32)
2603 && snapshot.contains_str_at(
2604 Point::new(
2605 selection.start.row,
2606 selection.start.column - (prefix_len as u32),
2607 ),
2608 &pair.start[..prefix_len],
2609 ));
2610 if preceding_text_matches_prefix {
2611 bracket_pair = Some(pair.clone());
2612 is_bracket_pair_start = true;
2613 break;
2614 }
2615 }
2616 if pair.end.as_str() == text.as_ref() {
2617 bracket_pair = Some(pair.clone());
2618 is_bracket_pair_end = true;
2619 break;
2620 }
2621 }
2622 }
2623
2624 if let Some(bracket_pair) = bracket_pair {
2625 let snapshot_settings = snapshot.settings_at(selection.start, cx);
2626 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
2627 let auto_surround =
2628 self.use_auto_surround && snapshot_settings.use_auto_surround;
2629 if selection.is_empty() {
2630 if is_bracket_pair_start {
2631 // If the inserted text is a suffix of an opening bracket and the
2632 // selection is preceded by the rest of the opening bracket, then
2633 // insert the closing bracket.
2634 let following_text_allows_autoclose = snapshot
2635 .chars_at(selection.start)
2636 .next()
2637 .map_or(true, |c| scope.should_autoclose_before(c));
2638
2639 let is_closing_quote = if bracket_pair.end == bracket_pair.start
2640 && bracket_pair.start.len() == 1
2641 {
2642 let target = bracket_pair.start.chars().next().unwrap();
2643 let current_line_count = snapshot
2644 .reversed_chars_at(selection.start)
2645 .take_while(|&c| c != '\n')
2646 .filter(|&c| c == target)
2647 .count();
2648 current_line_count % 2 == 1
2649 } else {
2650 false
2651 };
2652
2653 if autoclose
2654 && bracket_pair.close
2655 && following_text_allows_autoclose
2656 && !is_closing_quote
2657 {
2658 let anchor = snapshot.anchor_before(selection.end);
2659 new_selections.push((selection.map(|_| anchor), text.len()));
2660 new_autoclose_regions.push((
2661 anchor,
2662 text.len(),
2663 selection.id,
2664 bracket_pair.clone(),
2665 ));
2666 edits.push((
2667 selection.range(),
2668 format!("{}{}", text, bracket_pair.end).into(),
2669 ));
2670 bracket_inserted = true;
2671 continue;
2672 }
2673 }
2674
2675 if let Some(region) = autoclose_region {
2676 // If the selection is followed by an auto-inserted closing bracket,
2677 // then don't insert that closing bracket again; just move the selection
2678 // past the closing bracket.
2679 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2680 && text.as_ref() == region.pair.end.as_str();
2681 if should_skip {
2682 let anchor = snapshot.anchor_after(selection.end);
2683 new_selections
2684 .push((selection.map(|_| anchor), region.pair.end.len()));
2685 continue;
2686 }
2687 }
2688
2689 let always_treat_brackets_as_autoclosed = snapshot
2690 .settings_at(selection.start, cx)
2691 .always_treat_brackets_as_autoclosed;
2692 if always_treat_brackets_as_autoclosed
2693 && is_bracket_pair_end
2694 && snapshot.contains_str_at(selection.end, text.as_ref())
2695 {
2696 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2697 // and the inserted text is a closing bracket and the selection is followed
2698 // by the closing bracket then move the selection past the closing bracket.
2699 let anchor = snapshot.anchor_after(selection.end);
2700 new_selections.push((selection.map(|_| anchor), text.len()));
2701 continue;
2702 }
2703 }
2704 // If an opening bracket is 1 character long and is typed while
2705 // text is selected, then surround that text with the bracket pair.
2706 else if auto_surround
2707 && bracket_pair.surround
2708 && is_bracket_pair_start
2709 && bracket_pair.start.chars().count() == 1
2710 {
2711 edits.push((selection.start..selection.start, text.clone()));
2712 edits.push((
2713 selection.end..selection.end,
2714 bracket_pair.end.as_str().into(),
2715 ));
2716 bracket_inserted = true;
2717 new_selections.push((
2718 Selection {
2719 id: selection.id,
2720 start: snapshot.anchor_after(selection.start),
2721 end: snapshot.anchor_before(selection.end),
2722 reversed: selection.reversed,
2723 goal: selection.goal,
2724 },
2725 0,
2726 ));
2727 continue;
2728 }
2729 }
2730 }
2731
2732 if self.auto_replace_emoji_shortcode
2733 && selection.is_empty()
2734 && text.as_ref().ends_with(':')
2735 {
2736 if let Some(possible_emoji_short_code) =
2737 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2738 {
2739 if !possible_emoji_short_code.is_empty() {
2740 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2741 let emoji_shortcode_start = Point::new(
2742 selection.start.row,
2743 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2744 );
2745
2746 // Remove shortcode from buffer
2747 edits.push((
2748 emoji_shortcode_start..selection.start,
2749 "".to_string().into(),
2750 ));
2751 new_selections.push((
2752 Selection {
2753 id: selection.id,
2754 start: snapshot.anchor_after(emoji_shortcode_start),
2755 end: snapshot.anchor_before(selection.start),
2756 reversed: selection.reversed,
2757 goal: selection.goal,
2758 },
2759 0,
2760 ));
2761
2762 // Insert emoji
2763 let selection_start_anchor = snapshot.anchor_after(selection.start);
2764 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2765 edits.push((selection.start..selection.end, emoji.to_string().into()));
2766
2767 continue;
2768 }
2769 }
2770 }
2771 }
2772
2773 // If not handling any auto-close operation, then just replace the selected
2774 // text with the given input and move the selection to the end of the
2775 // newly inserted text.
2776 let anchor = snapshot.anchor_after(selection.end);
2777 if !self.linked_edit_ranges.is_empty() {
2778 let start_anchor = snapshot.anchor_before(selection.start);
2779
2780 let is_word_char = text.chars().next().map_or(true, |char| {
2781 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
2782 classifier.is_word(char)
2783 });
2784
2785 if is_word_char {
2786 if let Some(ranges) = self
2787 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
2788 {
2789 for (buffer, edits) in ranges {
2790 linked_edits
2791 .entry(buffer.clone())
2792 .or_default()
2793 .extend(edits.into_iter().map(|range| (range, text.clone())));
2794 }
2795 }
2796 }
2797 }
2798
2799 new_selections.push((selection.map(|_| anchor), 0));
2800 edits.push((selection.start..selection.end, text.clone()));
2801 }
2802
2803 drop(snapshot);
2804
2805 self.transact(cx, |this, cx| {
2806 this.buffer.update(cx, |buffer, cx| {
2807 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2808 });
2809 for (buffer, edits) in linked_edits {
2810 buffer.update(cx, |buffer, cx| {
2811 let snapshot = buffer.snapshot();
2812 let edits = edits
2813 .into_iter()
2814 .map(|(range, text)| {
2815 use text::ToPoint as TP;
2816 let end_point = TP::to_point(&range.end, &snapshot);
2817 let start_point = TP::to_point(&range.start, &snapshot);
2818 (start_point..end_point, text)
2819 })
2820 .sorted_by_key(|(range, _)| range.start)
2821 .collect::<Vec<_>>();
2822 buffer.edit(edits, None, cx);
2823 })
2824 }
2825 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2826 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2827 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
2828 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
2829 .zip(new_selection_deltas)
2830 .map(|(selection, delta)| Selection {
2831 id: selection.id,
2832 start: selection.start + delta,
2833 end: selection.end + delta,
2834 reversed: selection.reversed,
2835 goal: SelectionGoal::None,
2836 })
2837 .collect::<Vec<_>>();
2838
2839 let mut i = 0;
2840 for (position, delta, selection_id, pair) in new_autoclose_regions {
2841 let position = position.to_offset(&map.buffer_snapshot) + delta;
2842 let start = map.buffer_snapshot.anchor_before(position);
2843 let end = map.buffer_snapshot.anchor_after(position);
2844 while let Some(existing_state) = this.autoclose_regions.get(i) {
2845 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
2846 Ordering::Less => i += 1,
2847 Ordering::Greater => break,
2848 Ordering::Equal => {
2849 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
2850 Ordering::Less => i += 1,
2851 Ordering::Equal => break,
2852 Ordering::Greater => break,
2853 }
2854 }
2855 }
2856 }
2857 this.autoclose_regions.insert(
2858 i,
2859 AutocloseRegion {
2860 selection_id,
2861 range: start..end,
2862 pair,
2863 },
2864 );
2865 }
2866
2867 let had_active_inline_completion = this.has_active_inline_completion();
2868 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
2869 s.select(new_selections)
2870 });
2871
2872 if !bracket_inserted {
2873 if let Some(on_type_format_task) =
2874 this.trigger_on_type_formatting(text.to_string(), cx)
2875 {
2876 on_type_format_task.detach_and_log_err(cx);
2877 }
2878 }
2879
2880 let editor_settings = EditorSettings::get_global(cx);
2881 if bracket_inserted
2882 && (editor_settings.auto_signature_help
2883 || editor_settings.show_signature_help_after_edits)
2884 {
2885 this.show_signature_help(&ShowSignatureHelp, cx);
2886 }
2887
2888 let trigger_in_words =
2889 this.show_inline_completions_in_menu(cx) || !had_active_inline_completion;
2890 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2891 linked_editing_ranges::refresh_linked_ranges(this, cx);
2892 this.refresh_inline_completion(true, false, cx);
2893 });
2894 }
2895
2896 fn find_possible_emoji_shortcode_at_position(
2897 snapshot: &MultiBufferSnapshot,
2898 position: Point,
2899 ) -> Option<String> {
2900 let mut chars = Vec::new();
2901 let mut found_colon = false;
2902 for char in snapshot.reversed_chars_at(position).take(100) {
2903 // Found a possible emoji shortcode in the middle of the buffer
2904 if found_colon {
2905 if char.is_whitespace() {
2906 chars.reverse();
2907 return Some(chars.iter().collect());
2908 }
2909 // If the previous character is not a whitespace, we are in the middle of a word
2910 // and we only want to complete the shortcode if the word is made up of other emojis
2911 let mut containing_word = String::new();
2912 for ch in snapshot
2913 .reversed_chars_at(position)
2914 .skip(chars.len() + 1)
2915 .take(100)
2916 {
2917 if ch.is_whitespace() {
2918 break;
2919 }
2920 containing_word.push(ch);
2921 }
2922 let containing_word = containing_word.chars().rev().collect::<String>();
2923 if util::word_consists_of_emojis(containing_word.as_str()) {
2924 chars.reverse();
2925 return Some(chars.iter().collect());
2926 }
2927 }
2928
2929 if char.is_whitespace() || !char.is_ascii() {
2930 return None;
2931 }
2932 if char == ':' {
2933 found_colon = true;
2934 } else {
2935 chars.push(char);
2936 }
2937 }
2938 // Found a possible emoji shortcode at the beginning of the buffer
2939 chars.reverse();
2940 Some(chars.iter().collect())
2941 }
2942
2943 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2944 self.transact(cx, |this, cx| {
2945 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2946 let selections = this.selections.all::<usize>(cx);
2947 let multi_buffer = this.buffer.read(cx);
2948 let buffer = multi_buffer.snapshot(cx);
2949 selections
2950 .iter()
2951 .map(|selection| {
2952 let start_point = selection.start.to_point(&buffer);
2953 let mut indent =
2954 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
2955 indent.len = cmp::min(indent.len, start_point.column);
2956 let start = selection.start;
2957 let end = selection.end;
2958 let selection_is_empty = start == end;
2959 let language_scope = buffer.language_scope_at(start);
2960 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2961 &language_scope
2962 {
2963 let leading_whitespace_len = buffer
2964 .reversed_chars_at(start)
2965 .take_while(|c| c.is_whitespace() && *c != '\n')
2966 .map(|c| c.len_utf8())
2967 .sum::<usize>();
2968
2969 let trailing_whitespace_len = buffer
2970 .chars_at(end)
2971 .take_while(|c| c.is_whitespace() && *c != '\n')
2972 .map(|c| c.len_utf8())
2973 .sum::<usize>();
2974
2975 let insert_extra_newline =
2976 language.brackets().any(|(pair, enabled)| {
2977 let pair_start = pair.start.trim_end();
2978 let pair_end = pair.end.trim_start();
2979
2980 enabled
2981 && pair.newline
2982 && buffer.contains_str_at(
2983 end + trailing_whitespace_len,
2984 pair_end,
2985 )
2986 && buffer.contains_str_at(
2987 (start - leading_whitespace_len)
2988 .saturating_sub(pair_start.len()),
2989 pair_start,
2990 )
2991 });
2992
2993 // Comment extension on newline is allowed only for cursor selections
2994 let comment_delimiter = maybe!({
2995 if !selection_is_empty {
2996 return None;
2997 }
2998
2999 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3000 return None;
3001 }
3002
3003 let delimiters = language.line_comment_prefixes();
3004 let max_len_of_delimiter =
3005 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3006 let (snapshot, range) =
3007 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3008
3009 let mut index_of_first_non_whitespace = 0;
3010 let comment_candidate = snapshot
3011 .chars_for_range(range)
3012 .skip_while(|c| {
3013 let should_skip = c.is_whitespace();
3014 if should_skip {
3015 index_of_first_non_whitespace += 1;
3016 }
3017 should_skip
3018 })
3019 .take(max_len_of_delimiter)
3020 .collect::<String>();
3021 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3022 comment_candidate.starts_with(comment_prefix.as_ref())
3023 })?;
3024 let cursor_is_placed_after_comment_marker =
3025 index_of_first_non_whitespace + comment_prefix.len()
3026 <= start_point.column as usize;
3027 if cursor_is_placed_after_comment_marker {
3028 Some(comment_prefix.clone())
3029 } else {
3030 None
3031 }
3032 });
3033 (comment_delimiter, insert_extra_newline)
3034 } else {
3035 (None, false)
3036 };
3037
3038 let capacity_for_delimiter = comment_delimiter
3039 .as_deref()
3040 .map(str::len)
3041 .unwrap_or_default();
3042 let mut new_text =
3043 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3044 new_text.push('\n');
3045 new_text.extend(indent.chars());
3046 if let Some(delimiter) = &comment_delimiter {
3047 new_text.push_str(delimiter);
3048 }
3049 if insert_extra_newline {
3050 new_text = new_text.repeat(2);
3051 }
3052
3053 let anchor = buffer.anchor_after(end);
3054 let new_selection = selection.map(|_| anchor);
3055 (
3056 (start..end, new_text),
3057 (insert_extra_newline, new_selection),
3058 )
3059 })
3060 .unzip()
3061 };
3062
3063 this.edit_with_autoindent(edits, cx);
3064 let buffer = this.buffer.read(cx).snapshot(cx);
3065 let new_selections = selection_fixup_info
3066 .into_iter()
3067 .map(|(extra_newline_inserted, new_selection)| {
3068 let mut cursor = new_selection.end.to_point(&buffer);
3069 if extra_newline_inserted {
3070 cursor.row -= 1;
3071 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3072 }
3073 new_selection.map(|_| cursor)
3074 })
3075 .collect();
3076
3077 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3078 this.refresh_inline_completion(true, false, cx);
3079 });
3080 }
3081
3082 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3083 let buffer = self.buffer.read(cx);
3084 let snapshot = buffer.snapshot(cx);
3085
3086 let mut edits = Vec::new();
3087 let mut rows = Vec::new();
3088
3089 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3090 let cursor = selection.head();
3091 let row = cursor.row;
3092
3093 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3094
3095 let newline = "\n".to_string();
3096 edits.push((start_of_line..start_of_line, newline));
3097
3098 rows.push(row + rows_inserted as u32);
3099 }
3100
3101 self.transact(cx, |editor, cx| {
3102 editor.edit(edits, cx);
3103
3104 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3105 let mut index = 0;
3106 s.move_cursors_with(|map, _, _| {
3107 let row = rows[index];
3108 index += 1;
3109
3110 let point = Point::new(row, 0);
3111 let boundary = map.next_line_boundary(point).1;
3112 let clipped = map.clip_point(boundary, Bias::Left);
3113
3114 (clipped, SelectionGoal::None)
3115 });
3116 });
3117
3118 let mut indent_edits = Vec::new();
3119 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3120 for row in rows {
3121 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3122 for (row, indent) in indents {
3123 if indent.len == 0 {
3124 continue;
3125 }
3126
3127 let text = match indent.kind {
3128 IndentKind::Space => " ".repeat(indent.len as usize),
3129 IndentKind::Tab => "\t".repeat(indent.len as usize),
3130 };
3131 let point = Point::new(row.0, 0);
3132 indent_edits.push((point..point, text));
3133 }
3134 }
3135 editor.edit(indent_edits, cx);
3136 });
3137 }
3138
3139 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3140 let buffer = self.buffer.read(cx);
3141 let snapshot = buffer.snapshot(cx);
3142
3143 let mut edits = Vec::new();
3144 let mut rows = Vec::new();
3145 let mut rows_inserted = 0;
3146
3147 for selection in self.selections.all_adjusted(cx) {
3148 let cursor = selection.head();
3149 let row = cursor.row;
3150
3151 let point = Point::new(row + 1, 0);
3152 let start_of_line = snapshot.clip_point(point, Bias::Left);
3153
3154 let newline = "\n".to_string();
3155 edits.push((start_of_line..start_of_line, newline));
3156
3157 rows_inserted += 1;
3158 rows.push(row + rows_inserted);
3159 }
3160
3161 self.transact(cx, |editor, cx| {
3162 editor.edit(edits, cx);
3163
3164 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3165 let mut index = 0;
3166 s.move_cursors_with(|map, _, _| {
3167 let row = rows[index];
3168 index += 1;
3169
3170 let point = Point::new(row, 0);
3171 let boundary = map.next_line_boundary(point).1;
3172 let clipped = map.clip_point(boundary, Bias::Left);
3173
3174 (clipped, SelectionGoal::None)
3175 });
3176 });
3177
3178 let mut indent_edits = Vec::new();
3179 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3180 for row in rows {
3181 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3182 for (row, indent) in indents {
3183 if indent.len == 0 {
3184 continue;
3185 }
3186
3187 let text = match indent.kind {
3188 IndentKind::Space => " ".repeat(indent.len as usize),
3189 IndentKind::Tab => "\t".repeat(indent.len as usize),
3190 };
3191 let point = Point::new(row.0, 0);
3192 indent_edits.push((point..point, text));
3193 }
3194 }
3195 editor.edit(indent_edits, cx);
3196 });
3197 }
3198
3199 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3200 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3201 original_indent_columns: Vec::new(),
3202 });
3203 self.insert_with_autoindent_mode(text, autoindent, cx);
3204 }
3205
3206 fn insert_with_autoindent_mode(
3207 &mut self,
3208 text: &str,
3209 autoindent_mode: Option<AutoindentMode>,
3210 cx: &mut ViewContext<Self>,
3211 ) {
3212 if self.read_only(cx) {
3213 return;
3214 }
3215
3216 let text: Arc<str> = text.into();
3217 self.transact(cx, |this, cx| {
3218 let old_selections = this.selections.all_adjusted(cx);
3219 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3220 let anchors = {
3221 let snapshot = buffer.read(cx);
3222 old_selections
3223 .iter()
3224 .map(|s| {
3225 let anchor = snapshot.anchor_after(s.head());
3226 s.map(|_| anchor)
3227 })
3228 .collect::<Vec<_>>()
3229 };
3230 buffer.edit(
3231 old_selections
3232 .iter()
3233 .map(|s| (s.start..s.end, text.clone())),
3234 autoindent_mode,
3235 cx,
3236 );
3237 anchors
3238 });
3239
3240 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3241 s.select_anchors(selection_anchors);
3242 })
3243 });
3244 }
3245
3246 fn trigger_completion_on_input(
3247 &mut self,
3248 text: &str,
3249 trigger_in_words: bool,
3250 cx: &mut ViewContext<Self>,
3251 ) {
3252 if self.is_completion_trigger(text, trigger_in_words, cx) {
3253 self.show_completions(
3254 &ShowCompletions {
3255 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3256 },
3257 cx,
3258 );
3259 } else {
3260 self.hide_context_menu(cx);
3261 }
3262 }
3263
3264 fn is_completion_trigger(
3265 &self,
3266 text: &str,
3267 trigger_in_words: bool,
3268 cx: &mut ViewContext<Self>,
3269 ) -> bool {
3270 let position = self.selections.newest_anchor().head();
3271 let multibuffer = self.buffer.read(cx);
3272 let Some(buffer) = position
3273 .buffer_id
3274 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3275 else {
3276 return false;
3277 };
3278
3279 if let Some(completion_provider) = &self.completion_provider {
3280 completion_provider.is_completion_trigger(
3281 &buffer,
3282 position.text_anchor,
3283 text,
3284 trigger_in_words,
3285 cx,
3286 )
3287 } else {
3288 false
3289 }
3290 }
3291
3292 /// If any empty selections is touching the start of its innermost containing autoclose
3293 /// region, expand it to select the brackets.
3294 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3295 let selections = self.selections.all::<usize>(cx);
3296 let buffer = self.buffer.read(cx).read(cx);
3297 let new_selections = self
3298 .selections_with_autoclose_regions(selections, &buffer)
3299 .map(|(mut selection, region)| {
3300 if !selection.is_empty() {
3301 return selection;
3302 }
3303
3304 if let Some(region) = region {
3305 let mut range = region.range.to_offset(&buffer);
3306 if selection.start == range.start && range.start >= region.pair.start.len() {
3307 range.start -= region.pair.start.len();
3308 if buffer.contains_str_at(range.start, ®ion.pair.start)
3309 && buffer.contains_str_at(range.end, ®ion.pair.end)
3310 {
3311 range.end += region.pair.end.len();
3312 selection.start = range.start;
3313 selection.end = range.end;
3314
3315 return selection;
3316 }
3317 }
3318 }
3319
3320 let always_treat_brackets_as_autoclosed = buffer
3321 .settings_at(selection.start, cx)
3322 .always_treat_brackets_as_autoclosed;
3323
3324 if !always_treat_brackets_as_autoclosed {
3325 return selection;
3326 }
3327
3328 if let Some(scope) = buffer.language_scope_at(selection.start) {
3329 for (pair, enabled) in scope.brackets() {
3330 if !enabled || !pair.close {
3331 continue;
3332 }
3333
3334 if buffer.contains_str_at(selection.start, &pair.end) {
3335 let pair_start_len = pair.start.len();
3336 if buffer.contains_str_at(
3337 selection.start.saturating_sub(pair_start_len),
3338 &pair.start,
3339 ) {
3340 selection.start -= pair_start_len;
3341 selection.end += pair.end.len();
3342
3343 return selection;
3344 }
3345 }
3346 }
3347 }
3348
3349 selection
3350 })
3351 .collect();
3352
3353 drop(buffer);
3354 self.change_selections(None, cx, |selections| selections.select(new_selections));
3355 }
3356
3357 /// Iterate the given selections, and for each one, find the smallest surrounding
3358 /// autoclose region. This uses the ordering of the selections and the autoclose
3359 /// regions to avoid repeated comparisons.
3360 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3361 &'a self,
3362 selections: impl IntoIterator<Item = Selection<D>>,
3363 buffer: &'a MultiBufferSnapshot,
3364 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3365 let mut i = 0;
3366 let mut regions = self.autoclose_regions.as_slice();
3367 selections.into_iter().map(move |selection| {
3368 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3369
3370 let mut enclosing = None;
3371 while let Some(pair_state) = regions.get(i) {
3372 if pair_state.range.end.to_offset(buffer) < range.start {
3373 regions = ®ions[i + 1..];
3374 i = 0;
3375 } else if pair_state.range.start.to_offset(buffer) > range.end {
3376 break;
3377 } else {
3378 if pair_state.selection_id == selection.id {
3379 enclosing = Some(pair_state);
3380 }
3381 i += 1;
3382 }
3383 }
3384
3385 (selection, enclosing)
3386 })
3387 }
3388
3389 /// Remove any autoclose regions that no longer contain their selection.
3390 fn invalidate_autoclose_regions(
3391 &mut self,
3392 mut selections: &[Selection<Anchor>],
3393 buffer: &MultiBufferSnapshot,
3394 ) {
3395 self.autoclose_regions.retain(|state| {
3396 let mut i = 0;
3397 while let Some(selection) = selections.get(i) {
3398 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3399 selections = &selections[1..];
3400 continue;
3401 }
3402 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3403 break;
3404 }
3405 if selection.id == state.selection_id {
3406 return true;
3407 } else {
3408 i += 1;
3409 }
3410 }
3411 false
3412 });
3413 }
3414
3415 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3416 let offset = position.to_offset(buffer);
3417 let (word_range, kind) = buffer.surrounding_word(offset, true);
3418 if offset > word_range.start && kind == Some(CharKind::Word) {
3419 Some(
3420 buffer
3421 .text_for_range(word_range.start..offset)
3422 .collect::<String>(),
3423 )
3424 } else {
3425 None
3426 }
3427 }
3428
3429 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3430 self.refresh_inlay_hints(
3431 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3432 cx,
3433 );
3434 }
3435
3436 pub fn inlay_hints_enabled(&self) -> bool {
3437 self.inlay_hint_cache.enabled
3438 }
3439
3440 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3441 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
3442 return;
3443 }
3444
3445 let reason_description = reason.description();
3446 let ignore_debounce = matches!(
3447 reason,
3448 InlayHintRefreshReason::SettingsChange(_)
3449 | InlayHintRefreshReason::Toggle(_)
3450 | InlayHintRefreshReason::ExcerptsRemoved(_)
3451 );
3452 let (invalidate_cache, required_languages) = match reason {
3453 InlayHintRefreshReason::Toggle(enabled) => {
3454 self.inlay_hint_cache.enabled = enabled;
3455 if enabled {
3456 (InvalidationStrategy::RefreshRequested, None)
3457 } else {
3458 self.inlay_hint_cache.clear();
3459 self.splice_inlays(
3460 self.visible_inlay_hints(cx)
3461 .iter()
3462 .map(|inlay| inlay.id)
3463 .collect(),
3464 Vec::new(),
3465 cx,
3466 );
3467 return;
3468 }
3469 }
3470 InlayHintRefreshReason::SettingsChange(new_settings) => {
3471 match self.inlay_hint_cache.update_settings(
3472 &self.buffer,
3473 new_settings,
3474 self.visible_inlay_hints(cx),
3475 cx,
3476 ) {
3477 ControlFlow::Break(Some(InlaySplice {
3478 to_remove,
3479 to_insert,
3480 })) => {
3481 self.splice_inlays(to_remove, to_insert, cx);
3482 return;
3483 }
3484 ControlFlow::Break(None) => return,
3485 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3486 }
3487 }
3488 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3489 if let Some(InlaySplice {
3490 to_remove,
3491 to_insert,
3492 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3493 {
3494 self.splice_inlays(to_remove, to_insert, cx);
3495 }
3496 return;
3497 }
3498 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3499 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3500 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3501 }
3502 InlayHintRefreshReason::RefreshRequested => {
3503 (InvalidationStrategy::RefreshRequested, None)
3504 }
3505 };
3506
3507 if let Some(InlaySplice {
3508 to_remove,
3509 to_insert,
3510 }) = self.inlay_hint_cache.spawn_hint_refresh(
3511 reason_description,
3512 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3513 invalidate_cache,
3514 ignore_debounce,
3515 cx,
3516 ) {
3517 self.splice_inlays(to_remove, to_insert, cx);
3518 }
3519 }
3520
3521 fn visible_inlay_hints(&self, cx: &ViewContext<Editor>) -> Vec<Inlay> {
3522 self.display_map
3523 .read(cx)
3524 .current_inlays()
3525 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3526 .cloned()
3527 .collect()
3528 }
3529
3530 pub fn excerpts_for_inlay_hints_query(
3531 &self,
3532 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3533 cx: &mut ViewContext<Editor>,
3534 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3535 let Some(project) = self.project.as_ref() else {
3536 return HashMap::default();
3537 };
3538 let project = project.read(cx);
3539 let multi_buffer = self.buffer().read(cx);
3540 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3541 let multi_buffer_visible_start = self
3542 .scroll_manager
3543 .anchor()
3544 .anchor
3545 .to_point(&multi_buffer_snapshot);
3546 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3547 multi_buffer_visible_start
3548 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3549 Bias::Left,
3550 );
3551 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3552 multi_buffer_snapshot
3553 .range_to_buffer_ranges(multi_buffer_visible_range)
3554 .into_iter()
3555 .filter(|(_, excerpt_visible_range)| !excerpt_visible_range.is_empty())
3556 .filter_map(|(excerpt, excerpt_visible_range)| {
3557 let buffer_file = project::File::from_dyn(excerpt.buffer().file())?;
3558 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3559 let worktree_entry = buffer_worktree
3560 .read(cx)
3561 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3562 if worktree_entry.is_ignored {
3563 return None;
3564 }
3565
3566 let language = excerpt.buffer().language()?;
3567 if let Some(restrict_to_languages) = restrict_to_languages {
3568 if !restrict_to_languages.contains(language) {
3569 return None;
3570 }
3571 }
3572 Some((
3573 excerpt.id(),
3574 (
3575 multi_buffer.buffer(excerpt.buffer_id()).unwrap(),
3576 excerpt.buffer().version().clone(),
3577 excerpt_visible_range,
3578 ),
3579 ))
3580 })
3581 .collect()
3582 }
3583
3584 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3585 TextLayoutDetails {
3586 text_system: cx.text_system().clone(),
3587 editor_style: self.style.clone().unwrap(),
3588 rem_size: cx.rem_size(),
3589 scroll_anchor: self.scroll_manager.anchor(),
3590 visible_rows: self.visible_line_count(),
3591 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3592 }
3593 }
3594
3595 pub fn splice_inlays(
3596 &self,
3597 to_remove: Vec<InlayId>,
3598 to_insert: Vec<Inlay>,
3599 cx: &mut ViewContext<Self>,
3600 ) {
3601 self.display_map.update(cx, |display_map, cx| {
3602 display_map.splice_inlays(to_remove, to_insert, cx)
3603 });
3604 cx.notify();
3605 }
3606
3607 fn trigger_on_type_formatting(
3608 &self,
3609 input: String,
3610 cx: &mut ViewContext<Self>,
3611 ) -> Option<Task<Result<()>>> {
3612 if input.len() != 1 {
3613 return None;
3614 }
3615
3616 let project = self.project.as_ref()?;
3617 let position = self.selections.newest_anchor().head();
3618 let (buffer, buffer_position) = self
3619 .buffer
3620 .read(cx)
3621 .text_anchor_for_position(position, cx)?;
3622
3623 let settings = language_settings::language_settings(
3624 buffer
3625 .read(cx)
3626 .language_at(buffer_position)
3627 .map(|l| l.name()),
3628 buffer.read(cx).file(),
3629 cx,
3630 );
3631 if !settings.use_on_type_format {
3632 return None;
3633 }
3634
3635 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3636 // hence we do LSP request & edit on host side only — add formats to host's history.
3637 let push_to_lsp_host_history = true;
3638 // If this is not the host, append its history with new edits.
3639 let push_to_client_history = project.read(cx).is_via_collab();
3640
3641 let on_type_formatting = project.update(cx, |project, cx| {
3642 project.on_type_format(
3643 buffer.clone(),
3644 buffer_position,
3645 input,
3646 push_to_lsp_host_history,
3647 cx,
3648 )
3649 });
3650 Some(cx.spawn(|editor, mut cx| async move {
3651 if let Some(transaction) = on_type_formatting.await? {
3652 if push_to_client_history {
3653 buffer
3654 .update(&mut cx, |buffer, _| {
3655 buffer.push_transaction(transaction, Instant::now());
3656 })
3657 .ok();
3658 }
3659 editor.update(&mut cx, |editor, cx| {
3660 editor.refresh_document_highlights(cx);
3661 })?;
3662 }
3663 Ok(())
3664 }))
3665 }
3666
3667 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
3668 if self.pending_rename.is_some() {
3669 return;
3670 }
3671
3672 let Some(provider) = self.completion_provider.as_ref() else {
3673 return;
3674 };
3675
3676 if !self.snippet_stack.is_empty() && self.context_menu.borrow().as_ref().is_some() {
3677 return;
3678 }
3679
3680 let position = self.selections.newest_anchor().head();
3681 let (buffer, buffer_position) =
3682 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3683 output
3684 } else {
3685 return;
3686 };
3687 let show_completion_documentation = buffer
3688 .read(cx)
3689 .snapshot()
3690 .settings_at(buffer_position, cx)
3691 .show_completion_documentation;
3692
3693 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3694
3695 let trigger_kind = match &options.trigger {
3696 Some(trigger) if buffer.read(cx).completion_triggers().contains(trigger) => {
3697 CompletionTriggerKind::TRIGGER_CHARACTER
3698 }
3699 _ => CompletionTriggerKind::INVOKED,
3700 };
3701 let completion_context = CompletionContext {
3702 trigger_character: options.trigger.as_ref().and_then(|trigger| {
3703 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
3704 Some(String::from(trigger))
3705 } else {
3706 None
3707 }
3708 }),
3709 trigger_kind,
3710 };
3711 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
3712 let sort_completions = provider.sort_completions();
3713
3714 let id = post_inc(&mut self.next_completion_id);
3715 let task = cx.spawn(|editor, mut cx| {
3716 async move {
3717 editor.update(&mut cx, |this, _| {
3718 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3719 })?;
3720 let completions = completions.await.log_err();
3721 let menu = if let Some(completions) = completions {
3722 let mut menu = CompletionsMenu::new(
3723 id,
3724 sort_completions,
3725 show_completion_documentation,
3726 position,
3727 buffer.clone(),
3728 completions.into(),
3729 );
3730
3731 menu.filter(query.as_deref(), cx.background_executor().clone())
3732 .await;
3733
3734 menu.visible().then_some(menu)
3735 } else {
3736 None
3737 };
3738
3739 editor.update(&mut cx, |editor, cx| {
3740 match editor.context_menu.borrow().as_ref() {
3741 None => {}
3742 Some(CodeContextMenu::Completions(prev_menu)) => {
3743 if prev_menu.id > id {
3744 return;
3745 }
3746 }
3747 _ => return,
3748 }
3749
3750 if editor.focus_handle.is_focused(cx) && menu.is_some() {
3751 let mut menu = menu.unwrap();
3752 menu.resolve_visible_completions(editor.completion_provider.as_deref(), cx);
3753
3754 if editor.show_inline_completions_in_menu(cx) {
3755 if let Some(hint) = editor.inline_completion_menu_hint(cx) {
3756 menu.show_inline_completion_hint(hint);
3757 }
3758 } else {
3759 editor.discard_inline_completion(false, cx);
3760 }
3761
3762 *editor.context_menu.borrow_mut() =
3763 Some(CodeContextMenu::Completions(menu));
3764
3765 cx.notify();
3766 } else if editor.completion_tasks.len() <= 1 {
3767 // If there are no more completion tasks and the last menu was
3768 // empty, we should hide it.
3769 let was_hidden = editor.hide_context_menu(cx).is_none();
3770 // If it was already hidden and we don't show inline
3771 // completions in the menu, we should also show the
3772 // inline-completion when available.
3773 if was_hidden && editor.show_inline_completions_in_menu(cx) {
3774 editor.update_visible_inline_completion(cx);
3775 }
3776 }
3777 })?;
3778
3779 Ok::<_, anyhow::Error>(())
3780 }
3781 .log_err()
3782 });
3783
3784 self.completion_tasks.push((id, task));
3785 }
3786
3787 pub fn confirm_completion(
3788 &mut self,
3789 action: &ConfirmCompletion,
3790 cx: &mut ViewContext<Self>,
3791 ) -> Option<Task<Result<()>>> {
3792 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
3793 }
3794
3795 pub fn compose_completion(
3796 &mut self,
3797 action: &ComposeCompletion,
3798 cx: &mut ViewContext<Self>,
3799 ) -> Option<Task<Result<()>>> {
3800 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
3801 }
3802
3803 fn do_completion(
3804 &mut self,
3805 item_ix: Option<usize>,
3806 intent: CompletionIntent,
3807 cx: &mut ViewContext<Editor>,
3808 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
3809 use language::ToOffset as _;
3810
3811 let completions_menu =
3812 if let CodeContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3813 menu
3814 } else {
3815 return None;
3816 };
3817
3818 let mat = completions_menu
3819 .entries
3820 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
3821
3822 let mat = match mat {
3823 CompletionEntry::InlineCompletionHint { .. } => {
3824 self.accept_inline_completion(&AcceptInlineCompletion, cx);
3825 cx.stop_propagation();
3826 return Some(Task::ready(Ok(())));
3827 }
3828 CompletionEntry::Match(mat) => {
3829 if self.show_inline_completions_in_menu(cx) {
3830 self.discard_inline_completion(true, cx);
3831 }
3832 mat
3833 }
3834 };
3835
3836 let buffer_handle = completions_menu.buffer;
3837 let completion = completions_menu
3838 .completions
3839 .borrow()
3840 .get(mat.candidate_id)?
3841 .clone();
3842 cx.stop_propagation();
3843
3844 let snippet;
3845 let text;
3846
3847 if completion.is_snippet() {
3848 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3849 text = snippet.as_ref().unwrap().text.clone();
3850 } else {
3851 snippet = None;
3852 text = completion.new_text.clone();
3853 };
3854 let selections = self.selections.all::<usize>(cx);
3855 let buffer = buffer_handle.read(cx);
3856 let old_range = completion.old_range.to_offset(buffer);
3857 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3858
3859 let newest_selection = self.selections.newest_anchor();
3860 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3861 return None;
3862 }
3863
3864 let lookbehind = newest_selection
3865 .start
3866 .text_anchor
3867 .to_offset(buffer)
3868 .saturating_sub(old_range.start);
3869 let lookahead = old_range
3870 .end
3871 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3872 let mut common_prefix_len = old_text
3873 .bytes()
3874 .zip(text.bytes())
3875 .take_while(|(a, b)| a == b)
3876 .count();
3877
3878 let snapshot = self.buffer.read(cx).snapshot(cx);
3879 let mut range_to_replace: Option<Range<isize>> = None;
3880 let mut ranges = Vec::new();
3881 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3882 for selection in &selections {
3883 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3884 let start = selection.start.saturating_sub(lookbehind);
3885 let end = selection.end + lookahead;
3886 if selection.id == newest_selection.id {
3887 range_to_replace = Some(
3888 ((start + common_prefix_len) as isize - selection.start as isize)
3889 ..(end as isize - selection.start as isize),
3890 );
3891 }
3892 ranges.push(start + common_prefix_len..end);
3893 } else {
3894 common_prefix_len = 0;
3895 ranges.clear();
3896 ranges.extend(selections.iter().map(|s| {
3897 if s.id == newest_selection.id {
3898 range_to_replace = Some(
3899 old_range.start.to_offset_utf16(&snapshot).0 as isize
3900 - selection.start as isize
3901 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3902 - selection.start as isize,
3903 );
3904 old_range.clone()
3905 } else {
3906 s.start..s.end
3907 }
3908 }));
3909 break;
3910 }
3911 if !self.linked_edit_ranges.is_empty() {
3912 let start_anchor = snapshot.anchor_before(selection.head());
3913 let end_anchor = snapshot.anchor_after(selection.tail());
3914 if let Some(ranges) = self
3915 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
3916 {
3917 for (buffer, edits) in ranges {
3918 linked_edits.entry(buffer.clone()).or_default().extend(
3919 edits
3920 .into_iter()
3921 .map(|range| (range, text[common_prefix_len..].to_owned())),
3922 );
3923 }
3924 }
3925 }
3926 }
3927 let text = &text[common_prefix_len..];
3928
3929 cx.emit(EditorEvent::InputHandled {
3930 utf16_range_to_replace: range_to_replace,
3931 text: text.into(),
3932 });
3933
3934 self.transact(cx, |this, cx| {
3935 if let Some(mut snippet) = snippet {
3936 snippet.text = text.to_string();
3937 for tabstop in snippet
3938 .tabstops
3939 .iter_mut()
3940 .flat_map(|tabstop| tabstop.ranges.iter_mut())
3941 {
3942 tabstop.start -= common_prefix_len as isize;
3943 tabstop.end -= common_prefix_len as isize;
3944 }
3945
3946 this.insert_snippet(&ranges, snippet, cx).log_err();
3947 } else {
3948 this.buffer.update(cx, |buffer, cx| {
3949 buffer.edit(
3950 ranges.iter().map(|range| (range.clone(), text)),
3951 this.autoindent_mode.clone(),
3952 cx,
3953 );
3954 });
3955 }
3956 for (buffer, edits) in linked_edits {
3957 buffer.update(cx, |buffer, cx| {
3958 let snapshot = buffer.snapshot();
3959 let edits = edits
3960 .into_iter()
3961 .map(|(range, text)| {
3962 use text::ToPoint as TP;
3963 let end_point = TP::to_point(&range.end, &snapshot);
3964 let start_point = TP::to_point(&range.start, &snapshot);
3965 (start_point..end_point, text)
3966 })
3967 .sorted_by_key(|(range, _)| range.start)
3968 .collect::<Vec<_>>();
3969 buffer.edit(edits, None, cx);
3970 })
3971 }
3972
3973 this.refresh_inline_completion(true, false, cx);
3974 });
3975
3976 let show_new_completions_on_confirm = completion
3977 .confirm
3978 .as_ref()
3979 .map_or(false, |confirm| confirm(intent, cx));
3980 if show_new_completions_on_confirm {
3981 self.show_completions(&ShowCompletions { trigger: None }, cx);
3982 }
3983
3984 let provider = self.completion_provider.as_ref()?;
3985 drop(completion);
3986 let apply_edits = provider.apply_additional_edits_for_completion(
3987 buffer_handle,
3988 completions_menu.completions.clone(),
3989 mat.candidate_id,
3990 true,
3991 cx,
3992 );
3993
3994 let editor_settings = EditorSettings::get_global(cx);
3995 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
3996 // After the code completion is finished, users often want to know what signatures are needed.
3997 // so we should automatically call signature_help
3998 self.show_signature_help(&ShowSignatureHelp, cx);
3999 }
4000
4001 Some(cx.foreground_executor().spawn(async move {
4002 apply_edits.await?;
4003 Ok(())
4004 }))
4005 }
4006
4007 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4008 let mut context_menu = self.context_menu.borrow_mut();
4009 if let Some(CodeContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4010 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4011 // Toggle if we're selecting the same one
4012 *context_menu = None;
4013 cx.notify();
4014 return;
4015 } else {
4016 // Otherwise, clear it and start a new one
4017 *context_menu = None;
4018 cx.notify();
4019 }
4020 }
4021 drop(context_menu);
4022 let snapshot = self.snapshot(cx);
4023 let deployed_from_indicator = action.deployed_from_indicator;
4024 let mut task = self.code_actions_task.take();
4025 let action = action.clone();
4026 cx.spawn(|editor, mut cx| async move {
4027 while let Some(prev_task) = task {
4028 prev_task.await.log_err();
4029 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4030 }
4031
4032 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4033 if editor.focus_handle.is_focused(cx) {
4034 let multibuffer_point = action
4035 .deployed_from_indicator
4036 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4037 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4038 let (buffer, buffer_row) = snapshot
4039 .buffer_snapshot
4040 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4041 .and_then(|(buffer_snapshot, range)| {
4042 editor
4043 .buffer
4044 .read(cx)
4045 .buffer(buffer_snapshot.remote_id())
4046 .map(|buffer| (buffer, range.start.row))
4047 })?;
4048 let (_, code_actions) = editor
4049 .available_code_actions
4050 .clone()
4051 .and_then(|(location, code_actions)| {
4052 let snapshot = location.buffer.read(cx).snapshot();
4053 let point_range = location.range.to_point(&snapshot);
4054 let point_range = point_range.start.row..=point_range.end.row;
4055 if point_range.contains(&buffer_row) {
4056 Some((location, code_actions))
4057 } else {
4058 None
4059 }
4060 })
4061 .unzip();
4062 let buffer_id = buffer.read(cx).remote_id();
4063 let tasks = editor
4064 .tasks
4065 .get(&(buffer_id, buffer_row))
4066 .map(|t| Arc::new(t.to_owned()));
4067 if tasks.is_none() && code_actions.is_none() {
4068 return None;
4069 }
4070
4071 editor.completion_tasks.clear();
4072 editor.discard_inline_completion(false, cx);
4073 let task_context =
4074 tasks
4075 .as_ref()
4076 .zip(editor.project.clone())
4077 .map(|(tasks, project)| {
4078 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4079 });
4080
4081 Some(cx.spawn(|editor, mut cx| async move {
4082 let task_context = match task_context {
4083 Some(task_context) => task_context.await,
4084 None => None,
4085 };
4086 let resolved_tasks =
4087 tasks.zip(task_context).map(|(tasks, task_context)| {
4088 Rc::new(ResolvedTasks {
4089 templates: tasks.resolve(&task_context).collect(),
4090 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4091 multibuffer_point.row,
4092 tasks.column,
4093 )),
4094 })
4095 });
4096 let spawn_straight_away = resolved_tasks
4097 .as_ref()
4098 .map_or(false, |tasks| tasks.templates.len() == 1)
4099 && code_actions
4100 .as_ref()
4101 .map_or(true, |actions| actions.is_empty());
4102 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4103 *editor.context_menu.borrow_mut() =
4104 Some(CodeContextMenu::CodeActions(CodeActionsMenu {
4105 buffer,
4106 actions: CodeActionContents {
4107 tasks: resolved_tasks,
4108 actions: code_actions,
4109 },
4110 selected_item: Default::default(),
4111 scroll_handle: UniformListScrollHandle::default(),
4112 deployed_from_indicator,
4113 }));
4114 if spawn_straight_away {
4115 if let Some(task) = editor.confirm_code_action(
4116 &ConfirmCodeAction { item_ix: Some(0) },
4117 cx,
4118 ) {
4119 cx.notify();
4120 return task;
4121 }
4122 }
4123 cx.notify();
4124 Task::ready(Ok(()))
4125 }) {
4126 task.await
4127 } else {
4128 Ok(())
4129 }
4130 }))
4131 } else {
4132 Some(Task::ready(Ok(())))
4133 }
4134 })?;
4135 if let Some(task) = spawned_test_task {
4136 task.await?;
4137 }
4138
4139 Ok::<_, anyhow::Error>(())
4140 })
4141 .detach_and_log_err(cx);
4142 }
4143
4144 pub fn confirm_code_action(
4145 &mut self,
4146 action: &ConfirmCodeAction,
4147 cx: &mut ViewContext<Self>,
4148 ) -> Option<Task<Result<()>>> {
4149 let actions_menu = if let CodeContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4150 menu
4151 } else {
4152 return None;
4153 };
4154 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4155 let action = actions_menu.actions.get(action_ix)?;
4156 let title = action.label();
4157 let buffer = actions_menu.buffer;
4158 let workspace = self.workspace()?;
4159
4160 match action {
4161 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4162 workspace.update(cx, |workspace, cx| {
4163 workspace::tasks::schedule_resolved_task(
4164 workspace,
4165 task_source_kind,
4166 resolved_task,
4167 false,
4168 cx,
4169 );
4170
4171 Some(Task::ready(Ok(())))
4172 })
4173 }
4174 CodeActionsItem::CodeAction {
4175 excerpt_id,
4176 action,
4177 provider,
4178 } => {
4179 let apply_code_action =
4180 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4181 let workspace = workspace.downgrade();
4182 Some(cx.spawn(|editor, cx| async move {
4183 let project_transaction = apply_code_action.await?;
4184 Self::open_project_transaction(
4185 &editor,
4186 workspace,
4187 project_transaction,
4188 title,
4189 cx,
4190 )
4191 .await
4192 }))
4193 }
4194 }
4195 }
4196
4197 pub async fn open_project_transaction(
4198 this: &WeakView<Editor>,
4199 workspace: WeakView<Workspace>,
4200 transaction: ProjectTransaction,
4201 title: String,
4202 mut cx: AsyncWindowContext,
4203 ) -> Result<()> {
4204 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4205 cx.update(|cx| {
4206 entries.sort_unstable_by_key(|(buffer, _)| {
4207 buffer.read(cx).file().map(|f| f.path().clone())
4208 });
4209 })?;
4210
4211 // If the project transaction's edits are all contained within this editor, then
4212 // avoid opening a new editor to display them.
4213
4214 if let Some((buffer, transaction)) = entries.first() {
4215 if entries.len() == 1 {
4216 let excerpt = this.update(&mut cx, |editor, cx| {
4217 editor
4218 .buffer()
4219 .read(cx)
4220 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4221 })?;
4222 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4223 if excerpted_buffer == *buffer {
4224 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4225 let excerpt_range = excerpt_range.to_offset(buffer);
4226 buffer
4227 .edited_ranges_for_transaction::<usize>(transaction)
4228 .all(|range| {
4229 excerpt_range.start <= range.start
4230 && excerpt_range.end >= range.end
4231 })
4232 })?;
4233
4234 if all_edits_within_excerpt {
4235 return Ok(());
4236 }
4237 }
4238 }
4239 }
4240 } else {
4241 return Ok(());
4242 }
4243
4244 let mut ranges_to_highlight = Vec::new();
4245 let excerpt_buffer = cx.new_model(|cx| {
4246 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4247 for (buffer_handle, transaction) in &entries {
4248 let buffer = buffer_handle.read(cx);
4249 ranges_to_highlight.extend(
4250 multibuffer.push_excerpts_with_context_lines(
4251 buffer_handle.clone(),
4252 buffer
4253 .edited_ranges_for_transaction::<usize>(transaction)
4254 .collect(),
4255 DEFAULT_MULTIBUFFER_CONTEXT,
4256 cx,
4257 ),
4258 );
4259 }
4260 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4261 multibuffer
4262 })?;
4263
4264 workspace.update(&mut cx, |workspace, cx| {
4265 let project = workspace.project().clone();
4266 let editor =
4267 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4268 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4269 editor.update(cx, |editor, cx| {
4270 editor.highlight_background::<Self>(
4271 &ranges_to_highlight,
4272 |theme| theme.editor_highlighted_line_background,
4273 cx,
4274 );
4275 });
4276 })?;
4277
4278 Ok(())
4279 }
4280
4281 pub fn clear_code_action_providers(&mut self) {
4282 self.code_action_providers.clear();
4283 self.available_code_actions.take();
4284 }
4285
4286 pub fn add_code_action_provider(
4287 &mut self,
4288 provider: Rc<dyn CodeActionProvider>,
4289 cx: &mut ViewContext<Self>,
4290 ) {
4291 if self
4292 .code_action_providers
4293 .iter()
4294 .any(|existing_provider| existing_provider.id() == provider.id())
4295 {
4296 return;
4297 }
4298
4299 self.code_action_providers.push(provider);
4300 self.refresh_code_actions(cx);
4301 }
4302
4303 pub fn remove_code_action_provider(&mut self, id: Arc<str>, cx: &mut ViewContext<Self>) {
4304 self.code_action_providers
4305 .retain(|provider| provider.id() != id);
4306 self.refresh_code_actions(cx);
4307 }
4308
4309 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4310 let buffer = self.buffer.read(cx);
4311 let newest_selection = self.selections.newest_anchor().clone();
4312 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4313 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4314 if start_buffer != end_buffer {
4315 return None;
4316 }
4317
4318 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4319 cx.background_executor()
4320 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4321 .await;
4322
4323 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4324 let providers = this.code_action_providers.clone();
4325 let tasks = this
4326 .code_action_providers
4327 .iter()
4328 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4329 .collect::<Vec<_>>();
4330 (providers, tasks)
4331 })?;
4332
4333 let mut actions = Vec::new();
4334 for (provider, provider_actions) in
4335 providers.into_iter().zip(future::join_all(tasks).await)
4336 {
4337 if let Some(provider_actions) = provider_actions.log_err() {
4338 actions.extend(provider_actions.into_iter().map(|action| {
4339 AvailableCodeAction {
4340 excerpt_id: newest_selection.start.excerpt_id,
4341 action,
4342 provider: provider.clone(),
4343 }
4344 }));
4345 }
4346 }
4347
4348 this.update(&mut cx, |this, cx| {
4349 this.available_code_actions = if actions.is_empty() {
4350 None
4351 } else {
4352 Some((
4353 Location {
4354 buffer: start_buffer,
4355 range: start..end,
4356 },
4357 actions.into(),
4358 ))
4359 };
4360 cx.notify();
4361 })
4362 }));
4363 None
4364 }
4365
4366 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4367 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4368 self.show_git_blame_inline = false;
4369
4370 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4371 cx.background_executor().timer(delay).await;
4372
4373 this.update(&mut cx, |this, cx| {
4374 this.show_git_blame_inline = true;
4375 cx.notify();
4376 })
4377 .log_err();
4378 }));
4379 }
4380 }
4381
4382 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4383 if self.pending_rename.is_some() {
4384 return None;
4385 }
4386
4387 let provider = self.semantics_provider.clone()?;
4388 let buffer = self.buffer.read(cx);
4389 let newest_selection = self.selections.newest_anchor().clone();
4390 let cursor_position = newest_selection.head();
4391 let (cursor_buffer, cursor_buffer_position) =
4392 buffer.text_anchor_for_position(cursor_position, cx)?;
4393 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4394 if cursor_buffer != tail_buffer {
4395 return None;
4396 }
4397 let debounce = EditorSettings::get_global(cx).lsp_highlight_debounce;
4398 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4399 cx.background_executor()
4400 .timer(Duration::from_millis(debounce))
4401 .await;
4402
4403 let highlights = if let Some(highlights) = cx
4404 .update(|cx| {
4405 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4406 })
4407 .ok()
4408 .flatten()
4409 {
4410 highlights.await.log_err()
4411 } else {
4412 None
4413 };
4414
4415 if let Some(highlights) = highlights {
4416 this.update(&mut cx, |this, cx| {
4417 if this.pending_rename.is_some() {
4418 return;
4419 }
4420
4421 let buffer_id = cursor_position.buffer_id;
4422 let buffer = this.buffer.read(cx);
4423 if !buffer
4424 .text_anchor_for_position(cursor_position, cx)
4425 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4426 {
4427 return;
4428 }
4429
4430 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4431 let mut write_ranges = Vec::new();
4432 let mut read_ranges = Vec::new();
4433 for highlight in highlights {
4434 for (excerpt_id, excerpt_range) in
4435 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4436 {
4437 let start = highlight
4438 .range
4439 .start
4440 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4441 let end = highlight
4442 .range
4443 .end
4444 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4445 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4446 continue;
4447 }
4448
4449 let range = Anchor {
4450 buffer_id,
4451 excerpt_id,
4452 text_anchor: start,
4453 }..Anchor {
4454 buffer_id,
4455 excerpt_id,
4456 text_anchor: end,
4457 };
4458 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4459 write_ranges.push(range);
4460 } else {
4461 read_ranges.push(range);
4462 }
4463 }
4464 }
4465
4466 this.highlight_background::<DocumentHighlightRead>(
4467 &read_ranges,
4468 |theme| theme.editor_document_highlight_read_background,
4469 cx,
4470 );
4471 this.highlight_background::<DocumentHighlightWrite>(
4472 &write_ranges,
4473 |theme| theme.editor_document_highlight_write_background,
4474 cx,
4475 );
4476 cx.notify();
4477 })
4478 .log_err();
4479 }
4480 }));
4481 None
4482 }
4483
4484 pub fn refresh_inline_completion(
4485 &mut self,
4486 debounce: bool,
4487 user_requested: bool,
4488 cx: &mut ViewContext<Self>,
4489 ) -> Option<()> {
4490 let provider = self.inline_completion_provider()?;
4491 let cursor = self.selections.newest_anchor().head();
4492 let (buffer, cursor_buffer_position) =
4493 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4494
4495 if !user_requested
4496 && (!self.enable_inline_completions
4497 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4498 || !self.is_focused(cx))
4499 {
4500 self.discard_inline_completion(false, cx);
4501 return None;
4502 }
4503
4504 self.update_visible_inline_completion(cx);
4505 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4506 Some(())
4507 }
4508
4509 fn cycle_inline_completion(
4510 &mut self,
4511 direction: Direction,
4512 cx: &mut ViewContext<Self>,
4513 ) -> Option<()> {
4514 let provider = self.inline_completion_provider()?;
4515 let cursor = self.selections.newest_anchor().head();
4516 let (buffer, cursor_buffer_position) =
4517 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4518 if !self.enable_inline_completions
4519 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4520 {
4521 return None;
4522 }
4523
4524 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4525 self.update_visible_inline_completion(cx);
4526
4527 Some(())
4528 }
4529
4530 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4531 if !self.has_active_inline_completion() {
4532 self.refresh_inline_completion(false, true, cx);
4533 return;
4534 }
4535
4536 self.update_visible_inline_completion(cx);
4537 }
4538
4539 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4540 self.show_cursor_names(cx);
4541 }
4542
4543 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4544 self.show_cursor_names = true;
4545 cx.notify();
4546 cx.spawn(|this, mut cx| async move {
4547 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4548 this.update(&mut cx, |this, cx| {
4549 this.show_cursor_names = false;
4550 cx.notify()
4551 })
4552 .ok()
4553 })
4554 .detach();
4555 }
4556
4557 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4558 if self.has_active_inline_completion() {
4559 self.cycle_inline_completion(Direction::Next, cx);
4560 } else {
4561 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4562 if is_copilot_disabled {
4563 cx.propagate();
4564 }
4565 }
4566 }
4567
4568 pub fn previous_inline_completion(
4569 &mut self,
4570 _: &PreviousInlineCompletion,
4571 cx: &mut ViewContext<Self>,
4572 ) {
4573 if self.has_active_inline_completion() {
4574 self.cycle_inline_completion(Direction::Prev, cx);
4575 } else {
4576 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4577 if is_copilot_disabled {
4578 cx.propagate();
4579 }
4580 }
4581 }
4582
4583 pub fn accept_inline_completion(
4584 &mut self,
4585 _: &AcceptInlineCompletion,
4586 cx: &mut ViewContext<Self>,
4587 ) {
4588 if self.show_inline_completions_in_menu(cx) {
4589 self.hide_context_menu(cx);
4590 }
4591
4592 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4593 return;
4594 };
4595
4596 self.report_inline_completion_event(true, cx);
4597
4598 match &active_inline_completion.completion {
4599 InlineCompletion::Move(position) => {
4600 let position = *position;
4601 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4602 selections.select_anchor_ranges([position..position]);
4603 });
4604 }
4605 InlineCompletion::Edit(edits) => {
4606 if let Some(provider) = self.inline_completion_provider() {
4607 provider.accept(cx);
4608 }
4609
4610 let snapshot = self.buffer.read(cx).snapshot(cx);
4611 let last_edit_end = edits.last().unwrap().0.end.bias_right(&snapshot);
4612
4613 self.buffer.update(cx, |buffer, cx| {
4614 buffer.edit(edits.iter().cloned(), None, cx)
4615 });
4616
4617 self.change_selections(None, cx, |s| {
4618 s.select_anchor_ranges([last_edit_end..last_edit_end])
4619 });
4620
4621 self.update_visible_inline_completion(cx);
4622 if self.active_inline_completion.is_none() {
4623 self.refresh_inline_completion(true, true, cx);
4624 }
4625
4626 cx.notify();
4627 }
4628 }
4629 }
4630
4631 pub fn accept_partial_inline_completion(
4632 &mut self,
4633 _: &AcceptPartialInlineCompletion,
4634 cx: &mut ViewContext<Self>,
4635 ) {
4636 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4637 return;
4638 };
4639 if self.selections.count() != 1 {
4640 return;
4641 }
4642
4643 self.report_inline_completion_event(true, cx);
4644
4645 match &active_inline_completion.completion {
4646 InlineCompletion::Move(position) => {
4647 let position = *position;
4648 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4649 selections.select_anchor_ranges([position..position]);
4650 });
4651 }
4652 InlineCompletion::Edit(edits) => {
4653 if edits.len() == 1 && edits[0].0.start == edits[0].0.end {
4654 let text = edits[0].1.as_str();
4655 let mut partial_completion = text
4656 .chars()
4657 .by_ref()
4658 .take_while(|c| c.is_alphabetic())
4659 .collect::<String>();
4660 if partial_completion.is_empty() {
4661 partial_completion = text
4662 .chars()
4663 .by_ref()
4664 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4665 .collect::<String>();
4666 }
4667
4668 cx.emit(EditorEvent::InputHandled {
4669 utf16_range_to_replace: None,
4670 text: partial_completion.clone().into(),
4671 });
4672
4673 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4674
4675 self.refresh_inline_completion(true, true, cx);
4676 cx.notify();
4677 }
4678 }
4679 }
4680 }
4681
4682 fn discard_inline_completion(
4683 &mut self,
4684 should_report_inline_completion_event: bool,
4685 cx: &mut ViewContext<Self>,
4686 ) -> bool {
4687 if should_report_inline_completion_event {
4688 self.report_inline_completion_event(false, cx);
4689 }
4690
4691 if let Some(provider) = self.inline_completion_provider() {
4692 provider.discard(cx);
4693 }
4694
4695 self.take_active_inline_completion(cx).is_some()
4696 }
4697
4698 fn report_inline_completion_event(&self, accepted: bool, cx: &AppContext) {
4699 let Some(provider) = self.inline_completion_provider() else {
4700 return;
4701 };
4702 let Some(project) = self.project.as_ref() else {
4703 return;
4704 };
4705 let Some((_, buffer, _)) = self
4706 .buffer
4707 .read(cx)
4708 .excerpt_containing(self.selections.newest_anchor().head(), cx)
4709 else {
4710 return;
4711 };
4712
4713 let project = project.read(cx);
4714 let extension = buffer
4715 .read(cx)
4716 .file()
4717 .and_then(|file| Some(file.path().extension()?.to_string_lossy().to_string()));
4718 project.client().telemetry().report_inline_completion_event(
4719 provider.name().into(),
4720 accepted,
4721 extension,
4722 );
4723 }
4724
4725 pub fn has_active_inline_completion(&self) -> bool {
4726 self.active_inline_completion.is_some()
4727 }
4728
4729 fn take_active_inline_completion(
4730 &mut self,
4731 cx: &mut ViewContext<Self>,
4732 ) -> Option<InlineCompletion> {
4733 let active_inline_completion = self.active_inline_completion.take()?;
4734 self.splice_inlays(active_inline_completion.inlay_ids, Default::default(), cx);
4735 self.clear_highlights::<InlineCompletionHighlight>(cx);
4736 Some(active_inline_completion.completion)
4737 }
4738
4739 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4740 let selection = self.selections.newest_anchor();
4741 let cursor = selection.head();
4742 let multibuffer = self.buffer.read(cx).snapshot(cx);
4743 let offset_selection = selection.map(|endpoint| endpoint.to_offset(&multibuffer));
4744 let excerpt_id = cursor.excerpt_id;
4745
4746 let completions_menu_has_precedence = !self.show_inline_completions_in_menu(cx)
4747 && (self.context_menu.borrow().is_some()
4748 || (!self.completion_tasks.is_empty() && !self.has_active_inline_completion()));
4749 if completions_menu_has_precedence
4750 || !offset_selection.is_empty()
4751 || self
4752 .active_inline_completion
4753 .as_ref()
4754 .map_or(false, |completion| {
4755 let invalidation_range = completion.invalidation_range.to_offset(&multibuffer);
4756 let invalidation_range = invalidation_range.start..=invalidation_range.end;
4757 !invalidation_range.contains(&offset_selection.head())
4758 })
4759 {
4760 self.discard_inline_completion(false, cx);
4761 return None;
4762 }
4763
4764 self.take_active_inline_completion(cx);
4765 let provider = self.inline_completion_provider()?;
4766
4767 let (buffer, cursor_buffer_position) =
4768 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4769
4770 let completion = provider.suggest(&buffer, cursor_buffer_position, cx)?;
4771 let edits = completion
4772 .edits
4773 .into_iter()
4774 .flat_map(|(range, new_text)| {
4775 let start = multibuffer.anchor_in_excerpt(excerpt_id, range.start)?;
4776 let end = multibuffer.anchor_in_excerpt(excerpt_id, range.end)?;
4777 Some((start..end, new_text))
4778 })
4779 .collect::<Vec<_>>();
4780 if edits.is_empty() {
4781 return None;
4782 }
4783
4784 let first_edit_start = edits.first().unwrap().0.start;
4785 let edit_start_row = first_edit_start
4786 .to_point(&multibuffer)
4787 .row
4788 .saturating_sub(2);
4789
4790 let last_edit_end = edits.last().unwrap().0.end;
4791 let edit_end_row = cmp::min(
4792 multibuffer.max_point().row,
4793 last_edit_end.to_point(&multibuffer).row + 2,
4794 );
4795
4796 let cursor_row = cursor.to_point(&multibuffer).row;
4797
4798 let mut inlay_ids = Vec::new();
4799 let invalidation_row_range;
4800 let completion;
4801 if cursor_row < edit_start_row {
4802 invalidation_row_range = cursor_row..edit_end_row;
4803 completion = InlineCompletion::Move(first_edit_start);
4804 } else if cursor_row > edit_end_row {
4805 invalidation_row_range = edit_start_row..cursor_row;
4806 completion = InlineCompletion::Move(first_edit_start);
4807 } else {
4808 if edits
4809 .iter()
4810 .all(|(range, _)| range.to_offset(&multibuffer).is_empty())
4811 {
4812 let mut inlays = Vec::new();
4813 for (range, new_text) in &edits {
4814 let inlay = Inlay::inline_completion(
4815 post_inc(&mut self.next_inlay_id),
4816 range.start,
4817 new_text.as_str(),
4818 );
4819 inlay_ids.push(inlay.id);
4820 inlays.push(inlay);
4821 }
4822
4823 self.splice_inlays(vec![], inlays, cx);
4824 } else {
4825 let background_color = cx.theme().status().deleted_background;
4826 self.highlight_text::<InlineCompletionHighlight>(
4827 edits.iter().map(|(range, _)| range.clone()).collect(),
4828 HighlightStyle {
4829 background_color: Some(background_color),
4830 ..Default::default()
4831 },
4832 cx,
4833 );
4834 }
4835
4836 invalidation_row_range = edit_start_row..edit_end_row;
4837 completion = InlineCompletion::Edit(edits);
4838 };
4839
4840 let invalidation_range = multibuffer
4841 .anchor_before(Point::new(invalidation_row_range.start, 0))
4842 ..multibuffer.anchor_after(Point::new(
4843 invalidation_row_range.end,
4844 multibuffer.line_len(MultiBufferRow(invalidation_row_range.end)),
4845 ));
4846
4847 self.active_inline_completion = Some(InlineCompletionState {
4848 inlay_ids,
4849 completion,
4850 invalidation_range,
4851 });
4852
4853 if self.show_inline_completions_in_menu(cx) && self.has_active_completions_menu() {
4854 if let Some(hint) = self.inline_completion_menu_hint(cx) {
4855 match self.context_menu.borrow_mut().as_mut() {
4856 Some(CodeContextMenu::Completions(menu)) => {
4857 menu.show_inline_completion_hint(hint);
4858 }
4859 _ => {}
4860 }
4861 }
4862 }
4863
4864 cx.notify();
4865
4866 Some(())
4867 }
4868
4869 fn inline_completion_menu_hint(
4870 &mut self,
4871 cx: &mut ViewContext<Self>,
4872 ) -> Option<InlineCompletionMenuHint> {
4873 if self.has_active_inline_completion() {
4874 let provider_name = self.inline_completion_provider()?.display_name();
4875 let editor_snapshot = self.snapshot(cx);
4876
4877 let text = match &self.active_inline_completion.as_ref()?.completion {
4878 InlineCompletion::Edit(edits) => {
4879 inline_completion_edit_text(&editor_snapshot, edits, true, cx)
4880 }
4881 InlineCompletion::Move(target) => {
4882 let target_point =
4883 target.to_point(&editor_snapshot.display_snapshot.buffer_snapshot);
4884 let target_line = target_point.row + 1;
4885 InlineCompletionText::Move(
4886 format!("Jump to edit in line {}", target_line).into(),
4887 )
4888 }
4889 };
4890
4891 Some(InlineCompletionMenuHint {
4892 provider_name,
4893 text,
4894 })
4895 } else {
4896 None
4897 }
4898 }
4899
4900 pub fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4901 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4902 }
4903
4904 fn show_inline_completions_in_menu(&self, cx: &AppContext) -> bool {
4905 EditorSettings::get_global(cx).show_inline_completions_in_menu
4906 && self
4907 .inline_completion_provider()
4908 .map_or(false, |provider| provider.show_completions_in_menu())
4909 }
4910
4911 fn render_code_actions_indicator(
4912 &self,
4913 _style: &EditorStyle,
4914 row: DisplayRow,
4915 is_active: bool,
4916 cx: &mut ViewContext<Self>,
4917 ) -> Option<IconButton> {
4918 if self.available_code_actions.is_some() {
4919 Some(
4920 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4921 .shape(ui::IconButtonShape::Square)
4922 .icon_size(IconSize::XSmall)
4923 .icon_color(Color::Muted)
4924 .toggle_state(is_active)
4925 .tooltip({
4926 let focus_handle = self.focus_handle.clone();
4927 move |cx| {
4928 Tooltip::for_action_in(
4929 "Toggle Code Actions",
4930 &ToggleCodeActions {
4931 deployed_from_indicator: None,
4932 },
4933 &focus_handle,
4934 cx,
4935 )
4936 }
4937 })
4938 .on_click(cx.listener(move |editor, _e, cx| {
4939 editor.focus(cx);
4940 editor.toggle_code_actions(
4941 &ToggleCodeActions {
4942 deployed_from_indicator: Some(row),
4943 },
4944 cx,
4945 );
4946 })),
4947 )
4948 } else {
4949 None
4950 }
4951 }
4952
4953 fn clear_tasks(&mut self) {
4954 self.tasks.clear()
4955 }
4956
4957 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
4958 if self.tasks.insert(key, value).is_some() {
4959 // This case should hopefully be rare, but just in case...
4960 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4961 }
4962 }
4963
4964 fn build_tasks_context(
4965 project: &Model<Project>,
4966 buffer: &Model<Buffer>,
4967 buffer_row: u32,
4968 tasks: &Arc<RunnableTasks>,
4969 cx: &mut ViewContext<Self>,
4970 ) -> Task<Option<task::TaskContext>> {
4971 let position = Point::new(buffer_row, tasks.column);
4972 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4973 let location = Location {
4974 buffer: buffer.clone(),
4975 range: range_start..range_start,
4976 };
4977 // Fill in the environmental variables from the tree-sitter captures
4978 let mut captured_task_variables = TaskVariables::default();
4979 for (capture_name, value) in tasks.extra_variables.clone() {
4980 captured_task_variables.insert(
4981 task::VariableName::Custom(capture_name.into()),
4982 value.clone(),
4983 );
4984 }
4985 project.update(cx, |project, cx| {
4986 project.task_store().update(cx, |task_store, cx| {
4987 task_store.task_context_for_location(captured_task_variables, location, cx)
4988 })
4989 })
4990 }
4991
4992 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
4993 let Some((workspace, _)) = self.workspace.clone() else {
4994 return;
4995 };
4996 let Some(project) = self.project.clone() else {
4997 return;
4998 };
4999
5000 // Try to find a closest, enclosing node using tree-sitter that has a
5001 // task
5002 let Some((buffer, buffer_row, tasks)) = self
5003 .find_enclosing_node_task(cx)
5004 // Or find the task that's closest in row-distance.
5005 .or_else(|| self.find_closest_task(cx))
5006 else {
5007 return;
5008 };
5009
5010 let reveal_strategy = action.reveal;
5011 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5012 cx.spawn(|_, mut cx| async move {
5013 let context = task_context.await?;
5014 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5015
5016 let resolved = resolved_task.resolved.as_mut()?;
5017 resolved.reveal = reveal_strategy;
5018
5019 workspace
5020 .update(&mut cx, |workspace, cx| {
5021 workspace::tasks::schedule_resolved_task(
5022 workspace,
5023 task_source_kind,
5024 resolved_task,
5025 false,
5026 cx,
5027 );
5028 })
5029 .ok()
5030 })
5031 .detach();
5032 }
5033
5034 fn find_closest_task(
5035 &mut self,
5036 cx: &mut ViewContext<Self>,
5037 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5038 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5039
5040 let ((buffer_id, row), tasks) = self
5041 .tasks
5042 .iter()
5043 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5044
5045 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5046 let tasks = Arc::new(tasks.to_owned());
5047 Some((buffer, *row, tasks))
5048 }
5049
5050 fn find_enclosing_node_task(
5051 &mut self,
5052 cx: &mut ViewContext<Self>,
5053 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5054 let snapshot = self.buffer.read(cx).snapshot(cx);
5055 let offset = self.selections.newest::<usize>(cx).head();
5056 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5057 let buffer_id = excerpt.buffer().remote_id();
5058
5059 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5060 let mut cursor = layer.node().walk();
5061
5062 while cursor.goto_first_child_for_byte(offset).is_some() {
5063 if cursor.node().end_byte() == offset {
5064 cursor.goto_next_sibling();
5065 }
5066 }
5067
5068 // Ascend to the smallest ancestor that contains the range and has a task.
5069 loop {
5070 let node = cursor.node();
5071 let node_range = node.byte_range();
5072 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5073
5074 // Check if this node contains our offset
5075 if node_range.start <= offset && node_range.end >= offset {
5076 // If it contains offset, check for task
5077 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5078 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5079 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5080 }
5081 }
5082
5083 if !cursor.goto_parent() {
5084 break;
5085 }
5086 }
5087 None
5088 }
5089
5090 fn render_run_indicator(
5091 &self,
5092 _style: &EditorStyle,
5093 is_active: bool,
5094 row: DisplayRow,
5095 cx: &mut ViewContext<Self>,
5096 ) -> IconButton {
5097 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5098 .shape(ui::IconButtonShape::Square)
5099 .icon_size(IconSize::XSmall)
5100 .icon_color(Color::Muted)
5101 .toggle_state(is_active)
5102 .on_click(cx.listener(move |editor, _e, cx| {
5103 editor.focus(cx);
5104 editor.toggle_code_actions(
5105 &ToggleCodeActions {
5106 deployed_from_indicator: Some(row),
5107 },
5108 cx,
5109 );
5110 }))
5111 }
5112
5113 #[cfg(any(feature = "test-support", test))]
5114 pub fn context_menu_visible(&self) -> bool {
5115 self.context_menu
5116 .borrow()
5117 .as_ref()
5118 .map_or(false, |menu| menu.visible())
5119 }
5120
5121 #[cfg(feature = "test-support")]
5122 pub fn context_menu_contains_inline_completion(&self) -> bool {
5123 self.context_menu
5124 .borrow()
5125 .as_ref()
5126 .map_or(false, |menu| match menu {
5127 CodeContextMenu::Completions(menu) => menu.entries.first().map_or(false, |entry| {
5128 matches!(entry, CompletionEntry::InlineCompletionHint(_))
5129 }),
5130 CodeContextMenu::CodeActions(_) => false,
5131 })
5132 }
5133
5134 fn context_menu_origin(&self, cursor_position: DisplayPoint) -> Option<ContextMenuOrigin> {
5135 self.context_menu
5136 .borrow()
5137 .as_ref()
5138 .map(|menu| menu.origin(cursor_position))
5139 }
5140
5141 fn render_context_menu(
5142 &self,
5143 style: &EditorStyle,
5144 max_height_in_lines: u32,
5145 cx: &mut ViewContext<Editor>,
5146 ) -> Option<AnyElement> {
5147 self.context_menu.borrow().as_ref().and_then(|menu| {
5148 if menu.visible() {
5149 Some(menu.render(style, max_height_in_lines, cx))
5150 } else {
5151 None
5152 }
5153 })
5154 }
5155
5156 fn render_context_menu_aside(
5157 &self,
5158 style: &EditorStyle,
5159 max_size: Size<Pixels>,
5160 cx: &mut ViewContext<Editor>,
5161 ) -> Option<AnyElement> {
5162 self.context_menu.borrow().as_ref().and_then(|menu| {
5163 if menu.visible() {
5164 menu.render_aside(
5165 style,
5166 max_size,
5167 self.workspace.as_ref().map(|(w, _)| w.clone()),
5168 cx,
5169 )
5170 } else {
5171 None
5172 }
5173 })
5174 }
5175
5176 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<CodeContextMenu> {
5177 cx.notify();
5178 self.completion_tasks.clear();
5179 let context_menu = self.context_menu.borrow_mut().take();
5180 if context_menu.is_some() && !self.show_inline_completions_in_menu(cx) {
5181 self.update_visible_inline_completion(cx);
5182 }
5183 context_menu
5184 }
5185
5186 fn show_snippet_choices(
5187 &mut self,
5188 choices: &Vec<String>,
5189 selection: Range<Anchor>,
5190 cx: &mut ViewContext<Self>,
5191 ) {
5192 if selection.start.buffer_id.is_none() {
5193 return;
5194 }
5195 let buffer_id = selection.start.buffer_id.unwrap();
5196 let buffer = self.buffer().read(cx).buffer(buffer_id);
5197 let id = post_inc(&mut self.next_completion_id);
5198
5199 if let Some(buffer) = buffer {
5200 *self.context_menu.borrow_mut() = Some(CodeContextMenu::Completions(
5201 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
5202 ));
5203 }
5204 }
5205
5206 pub fn insert_snippet(
5207 &mut self,
5208 insertion_ranges: &[Range<usize>],
5209 snippet: Snippet,
5210 cx: &mut ViewContext<Self>,
5211 ) -> Result<()> {
5212 struct Tabstop<T> {
5213 is_end_tabstop: bool,
5214 ranges: Vec<Range<T>>,
5215 choices: Option<Vec<String>>,
5216 }
5217
5218 let tabstops = self.buffer.update(cx, |buffer, cx| {
5219 let snippet_text: Arc<str> = snippet.text.clone().into();
5220 buffer.edit(
5221 insertion_ranges
5222 .iter()
5223 .cloned()
5224 .map(|range| (range, snippet_text.clone())),
5225 Some(AutoindentMode::EachLine),
5226 cx,
5227 );
5228
5229 let snapshot = &*buffer.read(cx);
5230 let snippet = &snippet;
5231 snippet
5232 .tabstops
5233 .iter()
5234 .map(|tabstop| {
5235 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5236 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5237 });
5238 let mut tabstop_ranges = tabstop
5239 .ranges
5240 .iter()
5241 .flat_map(|tabstop_range| {
5242 let mut delta = 0_isize;
5243 insertion_ranges.iter().map(move |insertion_range| {
5244 let insertion_start = insertion_range.start as isize + delta;
5245 delta +=
5246 snippet.text.len() as isize - insertion_range.len() as isize;
5247
5248 let start = ((insertion_start + tabstop_range.start) as usize)
5249 .min(snapshot.len());
5250 let end = ((insertion_start + tabstop_range.end) as usize)
5251 .min(snapshot.len());
5252 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5253 })
5254 })
5255 .collect::<Vec<_>>();
5256 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5257
5258 Tabstop {
5259 is_end_tabstop,
5260 ranges: tabstop_ranges,
5261 choices: tabstop.choices.clone(),
5262 }
5263 })
5264 .collect::<Vec<_>>()
5265 });
5266 if let Some(tabstop) = tabstops.first() {
5267 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5268 s.select_ranges(tabstop.ranges.iter().cloned());
5269 });
5270
5271 if let Some(choices) = &tabstop.choices {
5272 if let Some(selection) = tabstop.ranges.first() {
5273 self.show_snippet_choices(choices, selection.clone(), cx)
5274 }
5275 }
5276
5277 // If we're already at the last tabstop and it's at the end of the snippet,
5278 // we're done, we don't need to keep the state around.
5279 if !tabstop.is_end_tabstop {
5280 let choices = tabstops
5281 .iter()
5282 .map(|tabstop| tabstop.choices.clone())
5283 .collect();
5284
5285 let ranges = tabstops
5286 .into_iter()
5287 .map(|tabstop| tabstop.ranges)
5288 .collect::<Vec<_>>();
5289
5290 self.snippet_stack.push(SnippetState {
5291 active_index: 0,
5292 ranges,
5293 choices,
5294 });
5295 }
5296
5297 // Check whether the just-entered snippet ends with an auto-closable bracket.
5298 if self.autoclose_regions.is_empty() {
5299 let snapshot = self.buffer.read(cx).snapshot(cx);
5300 for selection in &mut self.selections.all::<Point>(cx) {
5301 let selection_head = selection.head();
5302 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5303 continue;
5304 };
5305
5306 let mut bracket_pair = None;
5307 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5308 let prev_chars = snapshot
5309 .reversed_chars_at(selection_head)
5310 .collect::<String>();
5311 for (pair, enabled) in scope.brackets() {
5312 if enabled
5313 && pair.close
5314 && prev_chars.starts_with(pair.start.as_str())
5315 && next_chars.starts_with(pair.end.as_str())
5316 {
5317 bracket_pair = Some(pair.clone());
5318 break;
5319 }
5320 }
5321 if let Some(pair) = bracket_pair {
5322 let start = snapshot.anchor_after(selection_head);
5323 let end = snapshot.anchor_after(selection_head);
5324 self.autoclose_regions.push(AutocloseRegion {
5325 selection_id: selection.id,
5326 range: start..end,
5327 pair,
5328 });
5329 }
5330 }
5331 }
5332 }
5333 Ok(())
5334 }
5335
5336 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5337 self.move_to_snippet_tabstop(Bias::Right, cx)
5338 }
5339
5340 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5341 self.move_to_snippet_tabstop(Bias::Left, cx)
5342 }
5343
5344 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5345 if let Some(mut snippet) = self.snippet_stack.pop() {
5346 match bias {
5347 Bias::Left => {
5348 if snippet.active_index > 0 {
5349 snippet.active_index -= 1;
5350 } else {
5351 self.snippet_stack.push(snippet);
5352 return false;
5353 }
5354 }
5355 Bias::Right => {
5356 if snippet.active_index + 1 < snippet.ranges.len() {
5357 snippet.active_index += 1;
5358 } else {
5359 self.snippet_stack.push(snippet);
5360 return false;
5361 }
5362 }
5363 }
5364 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5365 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5366 s.select_anchor_ranges(current_ranges.iter().cloned())
5367 });
5368
5369 if let Some(choices) = &snippet.choices[snippet.active_index] {
5370 if let Some(selection) = current_ranges.first() {
5371 self.show_snippet_choices(&choices, selection.clone(), cx);
5372 }
5373 }
5374
5375 // If snippet state is not at the last tabstop, push it back on the stack
5376 if snippet.active_index + 1 < snippet.ranges.len() {
5377 self.snippet_stack.push(snippet);
5378 }
5379 return true;
5380 }
5381 }
5382
5383 false
5384 }
5385
5386 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5387 self.transact(cx, |this, cx| {
5388 this.select_all(&SelectAll, cx);
5389 this.insert("", cx);
5390 });
5391 }
5392
5393 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5394 self.transact(cx, |this, cx| {
5395 this.select_autoclose_pair(cx);
5396 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5397 if !this.linked_edit_ranges.is_empty() {
5398 let selections = this.selections.all::<MultiBufferPoint>(cx);
5399 let snapshot = this.buffer.read(cx).snapshot(cx);
5400
5401 for selection in selections.iter() {
5402 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5403 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5404 if selection_start.buffer_id != selection_end.buffer_id {
5405 continue;
5406 }
5407 if let Some(ranges) =
5408 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5409 {
5410 for (buffer, entries) in ranges {
5411 linked_ranges.entry(buffer).or_default().extend(entries);
5412 }
5413 }
5414 }
5415 }
5416
5417 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5418 if !this.selections.line_mode {
5419 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5420 for selection in &mut selections {
5421 if selection.is_empty() {
5422 let old_head = selection.head();
5423 let mut new_head =
5424 movement::left(&display_map, old_head.to_display_point(&display_map))
5425 .to_point(&display_map);
5426 if let Some((buffer, line_buffer_range)) = display_map
5427 .buffer_snapshot
5428 .buffer_line_for_row(MultiBufferRow(old_head.row))
5429 {
5430 let indent_size =
5431 buffer.indent_size_for_line(line_buffer_range.start.row);
5432 let indent_len = match indent_size.kind {
5433 IndentKind::Space => {
5434 buffer.settings_at(line_buffer_range.start, cx).tab_size
5435 }
5436 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5437 };
5438 if old_head.column <= indent_size.len && old_head.column > 0 {
5439 let indent_len = indent_len.get();
5440 new_head = cmp::min(
5441 new_head,
5442 MultiBufferPoint::new(
5443 old_head.row,
5444 ((old_head.column - 1) / indent_len) * indent_len,
5445 ),
5446 );
5447 }
5448 }
5449
5450 selection.set_head(new_head, SelectionGoal::None);
5451 }
5452 }
5453 }
5454
5455 this.signature_help_state.set_backspace_pressed(true);
5456 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5457 this.insert("", cx);
5458 let empty_str: Arc<str> = Arc::from("");
5459 for (buffer, edits) in linked_ranges {
5460 let snapshot = buffer.read(cx).snapshot();
5461 use text::ToPoint as TP;
5462
5463 let edits = edits
5464 .into_iter()
5465 .map(|range| {
5466 let end_point = TP::to_point(&range.end, &snapshot);
5467 let mut start_point = TP::to_point(&range.start, &snapshot);
5468
5469 if end_point == start_point {
5470 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5471 .saturating_sub(1);
5472 start_point =
5473 snapshot.clip_point(TP::to_point(&offset, &snapshot), Bias::Left);
5474 };
5475
5476 (start_point..end_point, empty_str.clone())
5477 })
5478 .sorted_by_key(|(range, _)| range.start)
5479 .collect::<Vec<_>>();
5480 buffer.update(cx, |this, cx| {
5481 this.edit(edits, None, cx);
5482 })
5483 }
5484 this.refresh_inline_completion(true, false, cx);
5485 linked_editing_ranges::refresh_linked_ranges(this, cx);
5486 });
5487 }
5488
5489 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5490 self.transact(cx, |this, cx| {
5491 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5492 let line_mode = s.line_mode;
5493 s.move_with(|map, selection| {
5494 if selection.is_empty() && !line_mode {
5495 let cursor = movement::right(map, selection.head());
5496 selection.end = cursor;
5497 selection.reversed = true;
5498 selection.goal = SelectionGoal::None;
5499 }
5500 })
5501 });
5502 this.insert("", cx);
5503 this.refresh_inline_completion(true, false, cx);
5504 });
5505 }
5506
5507 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5508 if self.move_to_prev_snippet_tabstop(cx) {
5509 return;
5510 }
5511
5512 self.outdent(&Outdent, cx);
5513 }
5514
5515 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5516 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5517 return;
5518 }
5519
5520 let mut selections = self.selections.all_adjusted(cx);
5521 let buffer = self.buffer.read(cx);
5522 let snapshot = buffer.snapshot(cx);
5523 let rows_iter = selections.iter().map(|s| s.head().row);
5524 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5525
5526 let mut edits = Vec::new();
5527 let mut prev_edited_row = 0;
5528 let mut row_delta = 0;
5529 for selection in &mut selections {
5530 if selection.start.row != prev_edited_row {
5531 row_delta = 0;
5532 }
5533 prev_edited_row = selection.end.row;
5534
5535 // If the selection is non-empty, then increase the indentation of the selected lines.
5536 if !selection.is_empty() {
5537 row_delta =
5538 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5539 continue;
5540 }
5541
5542 // If the selection is empty and the cursor is in the leading whitespace before the
5543 // suggested indentation, then auto-indent the line.
5544 let cursor = selection.head();
5545 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5546 if let Some(suggested_indent) =
5547 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5548 {
5549 if cursor.column < suggested_indent.len
5550 && cursor.column <= current_indent.len
5551 && current_indent.len <= suggested_indent.len
5552 {
5553 selection.start = Point::new(cursor.row, suggested_indent.len);
5554 selection.end = selection.start;
5555 if row_delta == 0 {
5556 edits.extend(Buffer::edit_for_indent_size_adjustment(
5557 cursor.row,
5558 current_indent,
5559 suggested_indent,
5560 ));
5561 row_delta = suggested_indent.len - current_indent.len;
5562 }
5563 continue;
5564 }
5565 }
5566
5567 // Otherwise, insert a hard or soft tab.
5568 let settings = buffer.settings_at(cursor, cx);
5569 let tab_size = if settings.hard_tabs {
5570 IndentSize::tab()
5571 } else {
5572 let tab_size = settings.tab_size.get();
5573 let char_column = snapshot
5574 .text_for_range(Point::new(cursor.row, 0)..cursor)
5575 .flat_map(str::chars)
5576 .count()
5577 + row_delta as usize;
5578 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5579 IndentSize::spaces(chars_to_next_tab_stop)
5580 };
5581 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5582 selection.end = selection.start;
5583 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5584 row_delta += tab_size.len;
5585 }
5586
5587 self.transact(cx, |this, cx| {
5588 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5589 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5590 this.refresh_inline_completion(true, false, cx);
5591 });
5592 }
5593
5594 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5595 if self.read_only(cx) {
5596 return;
5597 }
5598 let mut selections = self.selections.all::<Point>(cx);
5599 let mut prev_edited_row = 0;
5600 let mut row_delta = 0;
5601 let mut edits = Vec::new();
5602 let buffer = self.buffer.read(cx);
5603 let snapshot = buffer.snapshot(cx);
5604 for selection in &mut selections {
5605 if selection.start.row != prev_edited_row {
5606 row_delta = 0;
5607 }
5608 prev_edited_row = selection.end.row;
5609
5610 row_delta =
5611 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5612 }
5613
5614 self.transact(cx, |this, cx| {
5615 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5616 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5617 });
5618 }
5619
5620 fn indent_selection(
5621 buffer: &MultiBuffer,
5622 snapshot: &MultiBufferSnapshot,
5623 selection: &mut Selection<Point>,
5624 edits: &mut Vec<(Range<Point>, String)>,
5625 delta_for_start_row: u32,
5626 cx: &AppContext,
5627 ) -> u32 {
5628 let settings = buffer.settings_at(selection.start, cx);
5629 let tab_size = settings.tab_size.get();
5630 let indent_kind = if settings.hard_tabs {
5631 IndentKind::Tab
5632 } else {
5633 IndentKind::Space
5634 };
5635 let mut start_row = selection.start.row;
5636 let mut end_row = selection.end.row + 1;
5637
5638 // If a selection ends at the beginning of a line, don't indent
5639 // that last line.
5640 if selection.end.column == 0 && selection.end.row > selection.start.row {
5641 end_row -= 1;
5642 }
5643
5644 // Avoid re-indenting a row that has already been indented by a
5645 // previous selection, but still update this selection's column
5646 // to reflect that indentation.
5647 if delta_for_start_row > 0 {
5648 start_row += 1;
5649 selection.start.column += delta_for_start_row;
5650 if selection.end.row == selection.start.row {
5651 selection.end.column += delta_for_start_row;
5652 }
5653 }
5654
5655 let mut delta_for_end_row = 0;
5656 let has_multiple_rows = start_row + 1 != end_row;
5657 for row in start_row..end_row {
5658 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5659 let indent_delta = match (current_indent.kind, indent_kind) {
5660 (IndentKind::Space, IndentKind::Space) => {
5661 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5662 IndentSize::spaces(columns_to_next_tab_stop)
5663 }
5664 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5665 (_, IndentKind::Tab) => IndentSize::tab(),
5666 };
5667
5668 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5669 0
5670 } else {
5671 selection.start.column
5672 };
5673 let row_start = Point::new(row, start);
5674 edits.push((
5675 row_start..row_start,
5676 indent_delta.chars().collect::<String>(),
5677 ));
5678
5679 // Update this selection's endpoints to reflect the indentation.
5680 if row == selection.start.row {
5681 selection.start.column += indent_delta.len;
5682 }
5683 if row == selection.end.row {
5684 selection.end.column += indent_delta.len;
5685 delta_for_end_row = indent_delta.len;
5686 }
5687 }
5688
5689 if selection.start.row == selection.end.row {
5690 delta_for_start_row + delta_for_end_row
5691 } else {
5692 delta_for_end_row
5693 }
5694 }
5695
5696 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5697 if self.read_only(cx) {
5698 return;
5699 }
5700 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5701 let selections = self.selections.all::<Point>(cx);
5702 let mut deletion_ranges = Vec::new();
5703 let mut last_outdent = None;
5704 {
5705 let buffer = self.buffer.read(cx);
5706 let snapshot = buffer.snapshot(cx);
5707 for selection in &selections {
5708 let settings = buffer.settings_at(selection.start, cx);
5709 let tab_size = settings.tab_size.get();
5710 let mut rows = selection.spanned_rows(false, &display_map);
5711
5712 // Avoid re-outdenting a row that has already been outdented by a
5713 // previous selection.
5714 if let Some(last_row) = last_outdent {
5715 if last_row == rows.start {
5716 rows.start = rows.start.next_row();
5717 }
5718 }
5719 let has_multiple_rows = rows.len() > 1;
5720 for row in rows.iter_rows() {
5721 let indent_size = snapshot.indent_size_for_line(row);
5722 if indent_size.len > 0 {
5723 let deletion_len = match indent_size.kind {
5724 IndentKind::Space => {
5725 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5726 if columns_to_prev_tab_stop == 0 {
5727 tab_size
5728 } else {
5729 columns_to_prev_tab_stop
5730 }
5731 }
5732 IndentKind::Tab => 1,
5733 };
5734 let start = if has_multiple_rows
5735 || deletion_len > selection.start.column
5736 || indent_size.len < selection.start.column
5737 {
5738 0
5739 } else {
5740 selection.start.column - deletion_len
5741 };
5742 deletion_ranges.push(
5743 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5744 );
5745 last_outdent = Some(row);
5746 }
5747 }
5748 }
5749 }
5750
5751 self.transact(cx, |this, cx| {
5752 this.buffer.update(cx, |buffer, cx| {
5753 let empty_str: Arc<str> = Arc::default();
5754 buffer.edit(
5755 deletion_ranges
5756 .into_iter()
5757 .map(|range| (range, empty_str.clone())),
5758 None,
5759 cx,
5760 );
5761 });
5762 let selections = this.selections.all::<usize>(cx);
5763 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5764 });
5765 }
5766
5767 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
5768 if self.read_only(cx) {
5769 return;
5770 }
5771 let selections = self
5772 .selections
5773 .all::<usize>(cx)
5774 .into_iter()
5775 .map(|s| s.range());
5776
5777 self.transact(cx, |this, cx| {
5778 this.buffer.update(cx, |buffer, cx| {
5779 buffer.autoindent_ranges(selections, cx);
5780 });
5781 let selections = this.selections.all::<usize>(cx);
5782 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5783 });
5784 }
5785
5786 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5787 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5788 let selections = self.selections.all::<Point>(cx);
5789
5790 let mut new_cursors = Vec::new();
5791 let mut edit_ranges = Vec::new();
5792 let mut selections = selections.iter().peekable();
5793 while let Some(selection) = selections.next() {
5794 let mut rows = selection.spanned_rows(false, &display_map);
5795 let goal_display_column = selection.head().to_display_point(&display_map).column();
5796
5797 // Accumulate contiguous regions of rows that we want to delete.
5798 while let Some(next_selection) = selections.peek() {
5799 let next_rows = next_selection.spanned_rows(false, &display_map);
5800 if next_rows.start <= rows.end {
5801 rows.end = next_rows.end;
5802 selections.next().unwrap();
5803 } else {
5804 break;
5805 }
5806 }
5807
5808 let buffer = &display_map.buffer_snapshot;
5809 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5810 let edit_end;
5811 let cursor_buffer_row;
5812 if buffer.max_point().row >= rows.end.0 {
5813 // If there's a line after the range, delete the \n from the end of the row range
5814 // and position the cursor on the next line.
5815 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5816 cursor_buffer_row = rows.end;
5817 } else {
5818 // If there isn't a line after the range, delete the \n from the line before the
5819 // start of the row range and position the cursor there.
5820 edit_start = edit_start.saturating_sub(1);
5821 edit_end = buffer.len();
5822 cursor_buffer_row = rows.start.previous_row();
5823 }
5824
5825 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5826 *cursor.column_mut() =
5827 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5828
5829 new_cursors.push((
5830 selection.id,
5831 buffer.anchor_after(cursor.to_point(&display_map)),
5832 ));
5833 edit_ranges.push(edit_start..edit_end);
5834 }
5835
5836 self.transact(cx, |this, cx| {
5837 let buffer = this.buffer.update(cx, |buffer, cx| {
5838 let empty_str: Arc<str> = Arc::default();
5839 buffer.edit(
5840 edit_ranges
5841 .into_iter()
5842 .map(|range| (range, empty_str.clone())),
5843 None,
5844 cx,
5845 );
5846 buffer.snapshot(cx)
5847 });
5848 let new_selections = new_cursors
5849 .into_iter()
5850 .map(|(id, cursor)| {
5851 let cursor = cursor.to_point(&buffer);
5852 Selection {
5853 id,
5854 start: cursor,
5855 end: cursor,
5856 reversed: false,
5857 goal: SelectionGoal::None,
5858 }
5859 })
5860 .collect();
5861
5862 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5863 s.select(new_selections);
5864 });
5865 });
5866 }
5867
5868 pub fn join_lines_impl(&mut self, insert_whitespace: bool, cx: &mut ViewContext<Self>) {
5869 if self.read_only(cx) {
5870 return;
5871 }
5872 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5873 for selection in self.selections.all::<Point>(cx) {
5874 let start = MultiBufferRow(selection.start.row);
5875 // Treat single line selections as if they include the next line. Otherwise this action
5876 // would do nothing for single line selections individual cursors.
5877 let end = if selection.start.row == selection.end.row {
5878 MultiBufferRow(selection.start.row + 1)
5879 } else {
5880 MultiBufferRow(selection.end.row)
5881 };
5882
5883 if let Some(last_row_range) = row_ranges.last_mut() {
5884 if start <= last_row_range.end {
5885 last_row_range.end = end;
5886 continue;
5887 }
5888 }
5889 row_ranges.push(start..end);
5890 }
5891
5892 let snapshot = self.buffer.read(cx).snapshot(cx);
5893 let mut cursor_positions = Vec::new();
5894 for row_range in &row_ranges {
5895 let anchor = snapshot.anchor_before(Point::new(
5896 row_range.end.previous_row().0,
5897 snapshot.line_len(row_range.end.previous_row()),
5898 ));
5899 cursor_positions.push(anchor..anchor);
5900 }
5901
5902 self.transact(cx, |this, cx| {
5903 for row_range in row_ranges.into_iter().rev() {
5904 for row in row_range.iter_rows().rev() {
5905 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5906 let next_line_row = row.next_row();
5907 let indent = snapshot.indent_size_for_line(next_line_row);
5908 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5909
5910 let replace =
5911 if snapshot.line_len(next_line_row) > indent.len && insert_whitespace {
5912 " "
5913 } else {
5914 ""
5915 };
5916
5917 this.buffer.update(cx, |buffer, cx| {
5918 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5919 });
5920 }
5921 }
5922
5923 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5924 s.select_anchor_ranges(cursor_positions)
5925 });
5926 });
5927 }
5928
5929 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5930 self.join_lines_impl(true, cx);
5931 }
5932
5933 pub fn sort_lines_case_sensitive(
5934 &mut self,
5935 _: &SortLinesCaseSensitive,
5936 cx: &mut ViewContext<Self>,
5937 ) {
5938 self.manipulate_lines(cx, |lines| lines.sort())
5939 }
5940
5941 pub fn sort_lines_case_insensitive(
5942 &mut self,
5943 _: &SortLinesCaseInsensitive,
5944 cx: &mut ViewContext<Self>,
5945 ) {
5946 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5947 }
5948
5949 pub fn unique_lines_case_insensitive(
5950 &mut self,
5951 _: &UniqueLinesCaseInsensitive,
5952 cx: &mut ViewContext<Self>,
5953 ) {
5954 self.manipulate_lines(cx, |lines| {
5955 let mut seen = HashSet::default();
5956 lines.retain(|line| seen.insert(line.to_lowercase()));
5957 })
5958 }
5959
5960 pub fn unique_lines_case_sensitive(
5961 &mut self,
5962 _: &UniqueLinesCaseSensitive,
5963 cx: &mut ViewContext<Self>,
5964 ) {
5965 self.manipulate_lines(cx, |lines| {
5966 let mut seen = HashSet::default();
5967 lines.retain(|line| seen.insert(*line));
5968 })
5969 }
5970
5971 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
5972 let mut revert_changes = HashMap::default();
5973 let snapshot = self.snapshot(cx);
5974 for hunk in hunks_for_ranges(
5975 Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter(),
5976 &snapshot,
5977 ) {
5978 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5979 }
5980 if !revert_changes.is_empty() {
5981 self.transact(cx, |editor, cx| {
5982 editor.revert(revert_changes, cx);
5983 });
5984 }
5985 }
5986
5987 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
5988 let Some(project) = self.project.clone() else {
5989 return;
5990 };
5991 self.reload(project, cx).detach_and_notify_err(cx);
5992 }
5993
5994 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5995 let revert_changes = self.gather_revert_changes(&self.selections.all(cx), cx);
5996 if !revert_changes.is_empty() {
5997 self.transact(cx, |editor, cx| {
5998 editor.revert(revert_changes, cx);
5999 });
6000 }
6001 }
6002
6003 fn revert_hunk(&mut self, hunk: HoveredHunk, cx: &mut ViewContext<Editor>) {
6004 let snapshot = self.buffer.read(cx).read(cx);
6005 if let Some(hunk) = crate::hunk_diff::to_diff_hunk(&hunk, &snapshot) {
6006 drop(snapshot);
6007 let mut revert_changes = HashMap::default();
6008 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6009 if !revert_changes.is_empty() {
6010 self.revert(revert_changes, cx)
6011 }
6012 }
6013 }
6014
6015 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6016 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6017 let project_path = buffer.read(cx).project_path(cx)?;
6018 let project = self.project.as_ref()?.read(cx);
6019 let entry = project.entry_for_path(&project_path, cx)?;
6020 let parent = match &entry.canonical_path {
6021 Some(canonical_path) => canonical_path.to_path_buf(),
6022 None => project.absolute_path(&project_path, cx)?,
6023 }
6024 .parent()?
6025 .to_path_buf();
6026 Some(parent)
6027 }) {
6028 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6029 }
6030 }
6031
6032 fn gather_revert_changes(
6033 &mut self,
6034 selections: &[Selection<Point>],
6035 cx: &mut ViewContext<Editor>,
6036 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6037 let mut revert_changes = HashMap::default();
6038 let snapshot = self.snapshot(cx);
6039 for hunk in hunks_for_selections(&snapshot, selections) {
6040 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6041 }
6042 revert_changes
6043 }
6044
6045 pub fn prepare_revert_change(
6046 &mut self,
6047 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6048 hunk: &MultiBufferDiffHunk,
6049 cx: &AppContext,
6050 ) -> Option<()> {
6051 let buffer = self.buffer.read(cx).buffer(hunk.buffer_id)?;
6052 let buffer = buffer.read(cx);
6053 let change_set = &self.diff_map.diff_bases.get(&hunk.buffer_id)?.change_set;
6054 let original_text = change_set
6055 .read(cx)
6056 .base_text
6057 .as_ref()?
6058 .read(cx)
6059 .as_rope()
6060 .slice(hunk.diff_base_byte_range.clone());
6061 let buffer_snapshot = buffer.snapshot();
6062 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6063 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6064 probe
6065 .0
6066 .start
6067 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6068 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6069 }) {
6070 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6071 Some(())
6072 } else {
6073 None
6074 }
6075 }
6076
6077 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6078 self.manipulate_lines(cx, |lines| lines.reverse())
6079 }
6080
6081 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6082 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6083 }
6084
6085 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6086 where
6087 Fn: FnMut(&mut Vec<&str>),
6088 {
6089 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6090 let buffer = self.buffer.read(cx).snapshot(cx);
6091
6092 let mut edits = Vec::new();
6093
6094 let selections = self.selections.all::<Point>(cx);
6095 let mut selections = selections.iter().peekable();
6096 let mut contiguous_row_selections = Vec::new();
6097 let mut new_selections = Vec::new();
6098 let mut added_lines = 0;
6099 let mut removed_lines = 0;
6100
6101 while let Some(selection) = selections.next() {
6102 let (start_row, end_row) = consume_contiguous_rows(
6103 &mut contiguous_row_selections,
6104 selection,
6105 &display_map,
6106 &mut selections,
6107 );
6108
6109 let start_point = Point::new(start_row.0, 0);
6110 let end_point = Point::new(
6111 end_row.previous_row().0,
6112 buffer.line_len(end_row.previous_row()),
6113 );
6114 let text = buffer
6115 .text_for_range(start_point..end_point)
6116 .collect::<String>();
6117
6118 let mut lines = text.split('\n').collect_vec();
6119
6120 let lines_before = lines.len();
6121 callback(&mut lines);
6122 let lines_after = lines.len();
6123
6124 edits.push((start_point..end_point, lines.join("\n")));
6125
6126 // Selections must change based on added and removed line count
6127 let start_row =
6128 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6129 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6130 new_selections.push(Selection {
6131 id: selection.id,
6132 start: start_row,
6133 end: end_row,
6134 goal: SelectionGoal::None,
6135 reversed: selection.reversed,
6136 });
6137
6138 if lines_after > lines_before {
6139 added_lines += lines_after - lines_before;
6140 } else if lines_before > lines_after {
6141 removed_lines += lines_before - lines_after;
6142 }
6143 }
6144
6145 self.transact(cx, |this, cx| {
6146 let buffer = this.buffer.update(cx, |buffer, cx| {
6147 buffer.edit(edits, None, cx);
6148 buffer.snapshot(cx)
6149 });
6150
6151 // Recalculate offsets on newly edited buffer
6152 let new_selections = new_selections
6153 .iter()
6154 .map(|s| {
6155 let start_point = Point::new(s.start.0, 0);
6156 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6157 Selection {
6158 id: s.id,
6159 start: buffer.point_to_offset(start_point),
6160 end: buffer.point_to_offset(end_point),
6161 goal: s.goal,
6162 reversed: s.reversed,
6163 }
6164 })
6165 .collect();
6166
6167 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6168 s.select(new_selections);
6169 });
6170
6171 this.request_autoscroll(Autoscroll::fit(), cx);
6172 });
6173 }
6174
6175 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6176 self.manipulate_text(cx, |text| text.to_uppercase())
6177 }
6178
6179 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6180 self.manipulate_text(cx, |text| text.to_lowercase())
6181 }
6182
6183 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6184 self.manipulate_text(cx, |text| {
6185 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6186 // https://github.com/rutrum/convert-case/issues/16
6187 text.split('\n')
6188 .map(|line| line.to_case(Case::Title))
6189 .join("\n")
6190 })
6191 }
6192
6193 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6194 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6195 }
6196
6197 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6198 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6199 }
6200
6201 pub fn convert_to_upper_camel_case(
6202 &mut self,
6203 _: &ConvertToUpperCamelCase,
6204 cx: &mut ViewContext<Self>,
6205 ) {
6206 self.manipulate_text(cx, |text| {
6207 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6208 // https://github.com/rutrum/convert-case/issues/16
6209 text.split('\n')
6210 .map(|line| line.to_case(Case::UpperCamel))
6211 .join("\n")
6212 })
6213 }
6214
6215 pub fn convert_to_lower_camel_case(
6216 &mut self,
6217 _: &ConvertToLowerCamelCase,
6218 cx: &mut ViewContext<Self>,
6219 ) {
6220 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6221 }
6222
6223 pub fn convert_to_opposite_case(
6224 &mut self,
6225 _: &ConvertToOppositeCase,
6226 cx: &mut ViewContext<Self>,
6227 ) {
6228 self.manipulate_text(cx, |text| {
6229 text.chars()
6230 .fold(String::with_capacity(text.len()), |mut t, c| {
6231 if c.is_uppercase() {
6232 t.extend(c.to_lowercase());
6233 } else {
6234 t.extend(c.to_uppercase());
6235 }
6236 t
6237 })
6238 })
6239 }
6240
6241 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6242 where
6243 Fn: FnMut(&str) -> String,
6244 {
6245 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6246 let buffer = self.buffer.read(cx).snapshot(cx);
6247
6248 let mut new_selections = Vec::new();
6249 let mut edits = Vec::new();
6250 let mut selection_adjustment = 0i32;
6251
6252 for selection in self.selections.all::<usize>(cx) {
6253 let selection_is_empty = selection.is_empty();
6254
6255 let (start, end) = if selection_is_empty {
6256 let word_range = movement::surrounding_word(
6257 &display_map,
6258 selection.start.to_display_point(&display_map),
6259 );
6260 let start = word_range.start.to_offset(&display_map, Bias::Left);
6261 let end = word_range.end.to_offset(&display_map, Bias::Left);
6262 (start, end)
6263 } else {
6264 (selection.start, selection.end)
6265 };
6266
6267 let text = buffer.text_for_range(start..end).collect::<String>();
6268 let old_length = text.len() as i32;
6269 let text = callback(&text);
6270
6271 new_selections.push(Selection {
6272 start: (start as i32 - selection_adjustment) as usize,
6273 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6274 goal: SelectionGoal::None,
6275 ..selection
6276 });
6277
6278 selection_adjustment += old_length - text.len() as i32;
6279
6280 edits.push((start..end, text));
6281 }
6282
6283 self.transact(cx, |this, cx| {
6284 this.buffer.update(cx, |buffer, cx| {
6285 buffer.edit(edits, None, cx);
6286 });
6287
6288 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6289 s.select(new_selections);
6290 });
6291
6292 this.request_autoscroll(Autoscroll::fit(), cx);
6293 });
6294 }
6295
6296 pub fn duplicate(&mut self, upwards: bool, whole_lines: bool, cx: &mut ViewContext<Self>) {
6297 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6298 let buffer = &display_map.buffer_snapshot;
6299 let selections = self.selections.all::<Point>(cx);
6300
6301 let mut edits = Vec::new();
6302 let mut selections_iter = selections.iter().peekable();
6303 while let Some(selection) = selections_iter.next() {
6304 let mut rows = selection.spanned_rows(false, &display_map);
6305 // duplicate line-wise
6306 if whole_lines || selection.start == selection.end {
6307 // Avoid duplicating the same lines twice.
6308 while let Some(next_selection) = selections_iter.peek() {
6309 let next_rows = next_selection.spanned_rows(false, &display_map);
6310 if next_rows.start < rows.end {
6311 rows.end = next_rows.end;
6312 selections_iter.next().unwrap();
6313 } else {
6314 break;
6315 }
6316 }
6317
6318 // Copy the text from the selected row region and splice it either at the start
6319 // or end of the region.
6320 let start = Point::new(rows.start.0, 0);
6321 let end = Point::new(
6322 rows.end.previous_row().0,
6323 buffer.line_len(rows.end.previous_row()),
6324 );
6325 let text = buffer
6326 .text_for_range(start..end)
6327 .chain(Some("\n"))
6328 .collect::<String>();
6329 let insert_location = if upwards {
6330 Point::new(rows.end.0, 0)
6331 } else {
6332 start
6333 };
6334 edits.push((insert_location..insert_location, text));
6335 } else {
6336 // duplicate character-wise
6337 let start = selection.start;
6338 let end = selection.end;
6339 let text = buffer.text_for_range(start..end).collect::<String>();
6340 edits.push((selection.end..selection.end, text));
6341 }
6342 }
6343
6344 self.transact(cx, |this, cx| {
6345 this.buffer.update(cx, |buffer, cx| {
6346 buffer.edit(edits, None, cx);
6347 });
6348
6349 this.request_autoscroll(Autoscroll::fit(), cx);
6350 });
6351 }
6352
6353 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6354 self.duplicate(true, true, cx);
6355 }
6356
6357 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6358 self.duplicate(false, true, cx);
6359 }
6360
6361 pub fn duplicate_selection(&mut self, _: &DuplicateSelection, cx: &mut ViewContext<Self>) {
6362 self.duplicate(false, false, cx);
6363 }
6364
6365 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6366 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6367 let buffer = self.buffer.read(cx).snapshot(cx);
6368
6369 let mut edits = Vec::new();
6370 let mut unfold_ranges = Vec::new();
6371 let mut refold_creases = Vec::new();
6372
6373 let selections = self.selections.all::<Point>(cx);
6374 let mut selections = selections.iter().peekable();
6375 let mut contiguous_row_selections = Vec::new();
6376 let mut new_selections = Vec::new();
6377
6378 while let Some(selection) = selections.next() {
6379 // Find all the selections that span a contiguous row range
6380 let (start_row, end_row) = consume_contiguous_rows(
6381 &mut contiguous_row_selections,
6382 selection,
6383 &display_map,
6384 &mut selections,
6385 );
6386
6387 // Move the text spanned by the row range to be before the line preceding the row range
6388 if start_row.0 > 0 {
6389 let range_to_move = Point::new(
6390 start_row.previous_row().0,
6391 buffer.line_len(start_row.previous_row()),
6392 )
6393 ..Point::new(
6394 end_row.previous_row().0,
6395 buffer.line_len(end_row.previous_row()),
6396 );
6397 let insertion_point = display_map
6398 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6399 .0;
6400
6401 // Don't move lines across excerpts
6402 if buffer
6403 .excerpt_boundaries_in_range((
6404 Bound::Excluded(insertion_point),
6405 Bound::Included(range_to_move.end),
6406 ))
6407 .next()
6408 .is_none()
6409 {
6410 let text = buffer
6411 .text_for_range(range_to_move.clone())
6412 .flat_map(|s| s.chars())
6413 .skip(1)
6414 .chain(['\n'])
6415 .collect::<String>();
6416
6417 edits.push((
6418 buffer.anchor_after(range_to_move.start)
6419 ..buffer.anchor_before(range_to_move.end),
6420 String::new(),
6421 ));
6422 let insertion_anchor = buffer.anchor_after(insertion_point);
6423 edits.push((insertion_anchor..insertion_anchor, text));
6424
6425 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6426
6427 // Move selections up
6428 new_selections.extend(contiguous_row_selections.drain(..).map(
6429 |mut selection| {
6430 selection.start.row -= row_delta;
6431 selection.end.row -= row_delta;
6432 selection
6433 },
6434 ));
6435
6436 // Move folds up
6437 unfold_ranges.push(range_to_move.clone());
6438 for fold in display_map.folds_in_range(
6439 buffer.anchor_before(range_to_move.start)
6440 ..buffer.anchor_after(range_to_move.end),
6441 ) {
6442 let mut start = fold.range.start.to_point(&buffer);
6443 let mut end = fold.range.end.to_point(&buffer);
6444 start.row -= row_delta;
6445 end.row -= row_delta;
6446 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6447 }
6448 }
6449 }
6450
6451 // If we didn't move line(s), preserve the existing selections
6452 new_selections.append(&mut contiguous_row_selections);
6453 }
6454
6455 self.transact(cx, |this, cx| {
6456 this.unfold_ranges(&unfold_ranges, true, true, cx);
6457 this.buffer.update(cx, |buffer, cx| {
6458 for (range, text) in edits {
6459 buffer.edit([(range, text)], None, cx);
6460 }
6461 });
6462 this.fold_creases(refold_creases, true, cx);
6463 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6464 s.select(new_selections);
6465 })
6466 });
6467 }
6468
6469 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6470 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6471 let buffer = self.buffer.read(cx).snapshot(cx);
6472
6473 let mut edits = Vec::new();
6474 let mut unfold_ranges = Vec::new();
6475 let mut refold_creases = Vec::new();
6476
6477 let selections = self.selections.all::<Point>(cx);
6478 let mut selections = selections.iter().peekable();
6479 let mut contiguous_row_selections = Vec::new();
6480 let mut new_selections = Vec::new();
6481
6482 while let Some(selection) = selections.next() {
6483 // Find all the selections that span a contiguous row range
6484 let (start_row, end_row) = consume_contiguous_rows(
6485 &mut contiguous_row_selections,
6486 selection,
6487 &display_map,
6488 &mut selections,
6489 );
6490
6491 // Move the text spanned by the row range to be after the last line of the row range
6492 if end_row.0 <= buffer.max_point().row {
6493 let range_to_move =
6494 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6495 let insertion_point = display_map
6496 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6497 .0;
6498
6499 // Don't move lines across excerpt boundaries
6500 if buffer
6501 .excerpt_boundaries_in_range((
6502 Bound::Excluded(range_to_move.start),
6503 Bound::Included(insertion_point),
6504 ))
6505 .next()
6506 .is_none()
6507 {
6508 let mut text = String::from("\n");
6509 text.extend(buffer.text_for_range(range_to_move.clone()));
6510 text.pop(); // Drop trailing newline
6511 edits.push((
6512 buffer.anchor_after(range_to_move.start)
6513 ..buffer.anchor_before(range_to_move.end),
6514 String::new(),
6515 ));
6516 let insertion_anchor = buffer.anchor_after(insertion_point);
6517 edits.push((insertion_anchor..insertion_anchor, text));
6518
6519 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6520
6521 // Move selections down
6522 new_selections.extend(contiguous_row_selections.drain(..).map(
6523 |mut selection| {
6524 selection.start.row += row_delta;
6525 selection.end.row += row_delta;
6526 selection
6527 },
6528 ));
6529
6530 // Move folds down
6531 unfold_ranges.push(range_to_move.clone());
6532 for fold in display_map.folds_in_range(
6533 buffer.anchor_before(range_to_move.start)
6534 ..buffer.anchor_after(range_to_move.end),
6535 ) {
6536 let mut start = fold.range.start.to_point(&buffer);
6537 let mut end = fold.range.end.to_point(&buffer);
6538 start.row += row_delta;
6539 end.row += row_delta;
6540 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6541 }
6542 }
6543 }
6544
6545 // If we didn't move line(s), preserve the existing selections
6546 new_selections.append(&mut contiguous_row_selections);
6547 }
6548
6549 self.transact(cx, |this, cx| {
6550 this.unfold_ranges(&unfold_ranges, true, true, cx);
6551 this.buffer.update(cx, |buffer, cx| {
6552 for (range, text) in edits {
6553 buffer.edit([(range, text)], None, cx);
6554 }
6555 });
6556 this.fold_creases(refold_creases, true, cx);
6557 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6558 });
6559 }
6560
6561 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6562 let text_layout_details = &self.text_layout_details(cx);
6563 self.transact(cx, |this, cx| {
6564 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6565 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6566 let line_mode = s.line_mode;
6567 s.move_with(|display_map, selection| {
6568 if !selection.is_empty() || line_mode {
6569 return;
6570 }
6571
6572 let mut head = selection.head();
6573 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6574 if head.column() == display_map.line_len(head.row()) {
6575 transpose_offset = display_map
6576 .buffer_snapshot
6577 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6578 }
6579
6580 if transpose_offset == 0 {
6581 return;
6582 }
6583
6584 *head.column_mut() += 1;
6585 head = display_map.clip_point(head, Bias::Right);
6586 let goal = SelectionGoal::HorizontalPosition(
6587 display_map
6588 .x_for_display_point(head, text_layout_details)
6589 .into(),
6590 );
6591 selection.collapse_to(head, goal);
6592
6593 let transpose_start = display_map
6594 .buffer_snapshot
6595 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6596 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6597 let transpose_end = display_map
6598 .buffer_snapshot
6599 .clip_offset(transpose_offset + 1, Bias::Right);
6600 if let Some(ch) =
6601 display_map.buffer_snapshot.chars_at(transpose_start).next()
6602 {
6603 edits.push((transpose_start..transpose_offset, String::new()));
6604 edits.push((transpose_end..transpose_end, ch.to_string()));
6605 }
6606 }
6607 });
6608 edits
6609 });
6610 this.buffer
6611 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6612 let selections = this.selections.all::<usize>(cx);
6613 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6614 s.select(selections);
6615 });
6616 });
6617 }
6618
6619 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6620 self.rewrap_impl(IsVimMode::No, cx)
6621 }
6622
6623 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
6624 let buffer = self.buffer.read(cx).snapshot(cx);
6625 let selections = self.selections.all::<Point>(cx);
6626 let mut selections = selections.iter().peekable();
6627
6628 let mut edits = Vec::new();
6629 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6630
6631 while let Some(selection) = selections.next() {
6632 let mut start_row = selection.start.row;
6633 let mut end_row = selection.end.row;
6634
6635 // Skip selections that overlap with a range that has already been rewrapped.
6636 let selection_range = start_row..end_row;
6637 if rewrapped_row_ranges
6638 .iter()
6639 .any(|range| range.overlaps(&selection_range))
6640 {
6641 continue;
6642 }
6643
6644 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
6645
6646 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6647 match language_scope.language_name().0.as_ref() {
6648 "Markdown" | "Plain Text" => {
6649 should_rewrap = true;
6650 }
6651 _ => {}
6652 }
6653 }
6654
6655 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
6656
6657 // Since not all lines in the selection may be at the same indent
6658 // level, choose the indent size that is the most common between all
6659 // of the lines.
6660 //
6661 // If there is a tie, we use the deepest indent.
6662 let (indent_size, indent_end) = {
6663 let mut indent_size_occurrences = HashMap::default();
6664 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6665
6666 for row in start_row..=end_row {
6667 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6668 rows_by_indent_size.entry(indent).or_default().push(row);
6669 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6670 }
6671
6672 let indent_size = indent_size_occurrences
6673 .into_iter()
6674 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
6675 .map(|(indent, _)| indent)
6676 .unwrap_or_default();
6677 let row = rows_by_indent_size[&indent_size][0];
6678 let indent_end = Point::new(row, indent_size.len);
6679
6680 (indent_size, indent_end)
6681 };
6682
6683 let mut line_prefix = indent_size.chars().collect::<String>();
6684
6685 if let Some(comment_prefix) =
6686 buffer
6687 .language_scope_at(selection.head())
6688 .and_then(|language| {
6689 language
6690 .line_comment_prefixes()
6691 .iter()
6692 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6693 .cloned()
6694 })
6695 {
6696 line_prefix.push_str(&comment_prefix);
6697 should_rewrap = true;
6698 }
6699
6700 if !should_rewrap {
6701 continue;
6702 }
6703
6704 if selection.is_empty() {
6705 'expand_upwards: while start_row > 0 {
6706 let prev_row = start_row - 1;
6707 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6708 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6709 {
6710 start_row = prev_row;
6711 } else {
6712 break 'expand_upwards;
6713 }
6714 }
6715
6716 'expand_downwards: while end_row < buffer.max_point().row {
6717 let next_row = end_row + 1;
6718 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6719 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6720 {
6721 end_row = next_row;
6722 } else {
6723 break 'expand_downwards;
6724 }
6725 }
6726 }
6727
6728 let start = Point::new(start_row, 0);
6729 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6730 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6731 let Some(lines_without_prefixes) = selection_text
6732 .lines()
6733 .map(|line| {
6734 line.strip_prefix(&line_prefix)
6735 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6736 .ok_or_else(|| {
6737 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6738 })
6739 })
6740 .collect::<Result<Vec<_>, _>>()
6741 .log_err()
6742 else {
6743 continue;
6744 };
6745
6746 let wrap_column = buffer
6747 .settings_at(Point::new(start_row, 0), cx)
6748 .preferred_line_length as usize;
6749 let wrapped_text = wrap_with_prefix(
6750 line_prefix,
6751 lines_without_prefixes.join(" "),
6752 wrap_column,
6753 tab_size,
6754 );
6755
6756 // TODO: should always use char-based diff while still supporting cursor behavior that
6757 // matches vim.
6758 let diff = match is_vim_mode {
6759 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
6760 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
6761 };
6762 let mut offset = start.to_offset(&buffer);
6763 let mut moved_since_edit = true;
6764
6765 for change in diff.iter_all_changes() {
6766 let value = change.value();
6767 match change.tag() {
6768 ChangeTag::Equal => {
6769 offset += value.len();
6770 moved_since_edit = true;
6771 }
6772 ChangeTag::Delete => {
6773 let start = buffer.anchor_after(offset);
6774 let end = buffer.anchor_before(offset + value.len());
6775
6776 if moved_since_edit {
6777 edits.push((start..end, String::new()));
6778 } else {
6779 edits.last_mut().unwrap().0.end = end;
6780 }
6781
6782 offset += value.len();
6783 moved_since_edit = false;
6784 }
6785 ChangeTag::Insert => {
6786 if moved_since_edit {
6787 let anchor = buffer.anchor_after(offset);
6788 edits.push((anchor..anchor, value.to_string()));
6789 } else {
6790 edits.last_mut().unwrap().1.push_str(value);
6791 }
6792
6793 moved_since_edit = false;
6794 }
6795 }
6796 }
6797
6798 rewrapped_row_ranges.push(start_row..=end_row);
6799 }
6800
6801 self.buffer
6802 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6803 }
6804
6805 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
6806 let mut text = String::new();
6807 let buffer = self.buffer.read(cx).snapshot(cx);
6808 let mut selections = self.selections.all::<Point>(cx);
6809 let mut clipboard_selections = Vec::with_capacity(selections.len());
6810 {
6811 let max_point = buffer.max_point();
6812 let mut is_first = true;
6813 for selection in &mut selections {
6814 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6815 if is_entire_line {
6816 selection.start = Point::new(selection.start.row, 0);
6817 if !selection.is_empty() && selection.end.column == 0 {
6818 selection.end = cmp::min(max_point, selection.end);
6819 } else {
6820 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6821 }
6822 selection.goal = SelectionGoal::None;
6823 }
6824 if is_first {
6825 is_first = false;
6826 } else {
6827 text += "\n";
6828 }
6829 let mut len = 0;
6830 for chunk in buffer.text_for_range(selection.start..selection.end) {
6831 text.push_str(chunk);
6832 len += chunk.len();
6833 }
6834 clipboard_selections.push(ClipboardSelection {
6835 len,
6836 is_entire_line,
6837 first_line_indent: buffer
6838 .indent_size_for_line(MultiBufferRow(selection.start.row))
6839 .len,
6840 });
6841 }
6842 }
6843
6844 self.transact(cx, |this, cx| {
6845 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6846 s.select(selections);
6847 });
6848 this.insert("", cx);
6849 });
6850 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
6851 }
6852
6853 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6854 let item = self.cut_common(cx);
6855 cx.write_to_clipboard(item);
6856 }
6857
6858 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
6859 self.change_selections(None, cx, |s| {
6860 s.move_with(|snapshot, sel| {
6861 if sel.is_empty() {
6862 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
6863 }
6864 });
6865 });
6866 let item = self.cut_common(cx);
6867 cx.set_global(KillRing(item))
6868 }
6869
6870 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
6871 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
6872 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
6873 (kill_ring.text().to_string(), kill_ring.metadata_json())
6874 } else {
6875 return;
6876 }
6877 } else {
6878 return;
6879 };
6880 self.do_paste(&text, metadata, false, cx);
6881 }
6882
6883 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6884 let selections = self.selections.all::<Point>(cx);
6885 let buffer = self.buffer.read(cx).read(cx);
6886 let mut text = String::new();
6887
6888 let mut clipboard_selections = Vec::with_capacity(selections.len());
6889 {
6890 let max_point = buffer.max_point();
6891 let mut is_first = true;
6892 for selection in selections.iter() {
6893 let mut start = selection.start;
6894 let mut end = selection.end;
6895 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6896 if is_entire_line {
6897 start = Point::new(start.row, 0);
6898 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6899 }
6900 if is_first {
6901 is_first = false;
6902 } else {
6903 text += "\n";
6904 }
6905 let mut len = 0;
6906 for chunk in buffer.text_for_range(start..end) {
6907 text.push_str(chunk);
6908 len += chunk.len();
6909 }
6910 clipboard_selections.push(ClipboardSelection {
6911 len,
6912 is_entire_line,
6913 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6914 });
6915 }
6916 }
6917
6918 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6919 text,
6920 clipboard_selections,
6921 ));
6922 }
6923
6924 pub fn do_paste(
6925 &mut self,
6926 text: &String,
6927 clipboard_selections: Option<Vec<ClipboardSelection>>,
6928 handle_entire_lines: bool,
6929 cx: &mut ViewContext<Self>,
6930 ) {
6931 if self.read_only(cx) {
6932 return;
6933 }
6934
6935 let clipboard_text = Cow::Borrowed(text);
6936
6937 self.transact(cx, |this, cx| {
6938 if let Some(mut clipboard_selections) = clipboard_selections {
6939 let old_selections = this.selections.all::<usize>(cx);
6940 let all_selections_were_entire_line =
6941 clipboard_selections.iter().all(|s| s.is_entire_line);
6942 let first_selection_indent_column =
6943 clipboard_selections.first().map(|s| s.first_line_indent);
6944 if clipboard_selections.len() != old_selections.len() {
6945 clipboard_selections.drain(..);
6946 }
6947 let cursor_offset = this.selections.last::<usize>(cx).head();
6948 let mut auto_indent_on_paste = true;
6949
6950 this.buffer.update(cx, |buffer, cx| {
6951 let snapshot = buffer.read(cx);
6952 auto_indent_on_paste =
6953 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
6954
6955 let mut start_offset = 0;
6956 let mut edits = Vec::new();
6957 let mut original_indent_columns = Vec::new();
6958 for (ix, selection) in old_selections.iter().enumerate() {
6959 let to_insert;
6960 let entire_line;
6961 let original_indent_column;
6962 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6963 let end_offset = start_offset + clipboard_selection.len;
6964 to_insert = &clipboard_text[start_offset..end_offset];
6965 entire_line = clipboard_selection.is_entire_line;
6966 start_offset = end_offset + 1;
6967 original_indent_column = Some(clipboard_selection.first_line_indent);
6968 } else {
6969 to_insert = clipboard_text.as_str();
6970 entire_line = all_selections_were_entire_line;
6971 original_indent_column = first_selection_indent_column
6972 }
6973
6974 // If the corresponding selection was empty when this slice of the
6975 // clipboard text was written, then the entire line containing the
6976 // selection was copied. If this selection is also currently empty,
6977 // then paste the line before the current line of the buffer.
6978 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6979 let column = selection.start.to_point(&snapshot).column as usize;
6980 let line_start = selection.start - column;
6981 line_start..line_start
6982 } else {
6983 selection.range()
6984 };
6985
6986 edits.push((range, to_insert));
6987 original_indent_columns.extend(original_indent_column);
6988 }
6989 drop(snapshot);
6990
6991 buffer.edit(
6992 edits,
6993 if auto_indent_on_paste {
6994 Some(AutoindentMode::Block {
6995 original_indent_columns,
6996 })
6997 } else {
6998 None
6999 },
7000 cx,
7001 );
7002 });
7003
7004 let selections = this.selections.all::<usize>(cx);
7005 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7006 } else {
7007 this.insert(&clipboard_text, cx);
7008 }
7009 });
7010 }
7011
7012 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7013 if let Some(item) = cx.read_from_clipboard() {
7014 let entries = item.entries();
7015
7016 match entries.first() {
7017 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7018 // of all the pasted entries.
7019 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7020 .do_paste(
7021 clipboard_string.text(),
7022 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7023 true,
7024 cx,
7025 ),
7026 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7027 }
7028 }
7029 }
7030
7031 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7032 if self.read_only(cx) {
7033 return;
7034 }
7035
7036 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7037 if let Some((selections, _)) =
7038 self.selection_history.transaction(transaction_id).cloned()
7039 {
7040 self.change_selections(None, cx, |s| {
7041 s.select_anchors(selections.to_vec());
7042 });
7043 }
7044 self.request_autoscroll(Autoscroll::fit(), cx);
7045 self.unmark_text(cx);
7046 self.refresh_inline_completion(true, false, cx);
7047 cx.emit(EditorEvent::Edited { transaction_id });
7048 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7049 }
7050 }
7051
7052 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7053 if self.read_only(cx) {
7054 return;
7055 }
7056
7057 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7058 if let Some((_, Some(selections))) =
7059 self.selection_history.transaction(transaction_id).cloned()
7060 {
7061 self.change_selections(None, cx, |s| {
7062 s.select_anchors(selections.to_vec());
7063 });
7064 }
7065 self.request_autoscroll(Autoscroll::fit(), cx);
7066 self.unmark_text(cx);
7067 self.refresh_inline_completion(true, false, cx);
7068 cx.emit(EditorEvent::Edited { transaction_id });
7069 }
7070 }
7071
7072 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7073 self.buffer
7074 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7075 }
7076
7077 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7078 self.buffer
7079 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7080 }
7081
7082 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7083 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7084 let line_mode = s.line_mode;
7085 s.move_with(|map, selection| {
7086 let cursor = if selection.is_empty() && !line_mode {
7087 movement::left(map, selection.start)
7088 } else {
7089 selection.start
7090 };
7091 selection.collapse_to(cursor, SelectionGoal::None);
7092 });
7093 })
7094 }
7095
7096 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7097 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7098 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7099 })
7100 }
7101
7102 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7103 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7104 let line_mode = s.line_mode;
7105 s.move_with(|map, selection| {
7106 let cursor = if selection.is_empty() && !line_mode {
7107 movement::right(map, selection.end)
7108 } else {
7109 selection.end
7110 };
7111 selection.collapse_to(cursor, SelectionGoal::None)
7112 });
7113 })
7114 }
7115
7116 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7117 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7118 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7119 })
7120 }
7121
7122 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7123 if self.take_rename(true, cx).is_some() {
7124 return;
7125 }
7126
7127 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7128 cx.propagate();
7129 return;
7130 }
7131
7132 let text_layout_details = &self.text_layout_details(cx);
7133 let selection_count = self.selections.count();
7134 let first_selection = self.selections.first_anchor();
7135
7136 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7137 let line_mode = s.line_mode;
7138 s.move_with(|map, selection| {
7139 if !selection.is_empty() && !line_mode {
7140 selection.goal = SelectionGoal::None;
7141 }
7142 let (cursor, goal) = movement::up(
7143 map,
7144 selection.start,
7145 selection.goal,
7146 false,
7147 text_layout_details,
7148 );
7149 selection.collapse_to(cursor, goal);
7150 });
7151 });
7152
7153 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7154 {
7155 cx.propagate();
7156 }
7157 }
7158
7159 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7160 if self.take_rename(true, cx).is_some() {
7161 return;
7162 }
7163
7164 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7165 cx.propagate();
7166 return;
7167 }
7168
7169 let text_layout_details = &self.text_layout_details(cx);
7170
7171 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7172 let line_mode = s.line_mode;
7173 s.move_with(|map, selection| {
7174 if !selection.is_empty() && !line_mode {
7175 selection.goal = SelectionGoal::None;
7176 }
7177 let (cursor, goal) = movement::up_by_rows(
7178 map,
7179 selection.start,
7180 action.lines,
7181 selection.goal,
7182 false,
7183 text_layout_details,
7184 );
7185 selection.collapse_to(cursor, goal);
7186 });
7187 })
7188 }
7189
7190 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7191 if self.take_rename(true, cx).is_some() {
7192 return;
7193 }
7194
7195 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7196 cx.propagate();
7197 return;
7198 }
7199
7200 let text_layout_details = &self.text_layout_details(cx);
7201
7202 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7203 let line_mode = s.line_mode;
7204 s.move_with(|map, selection| {
7205 if !selection.is_empty() && !line_mode {
7206 selection.goal = SelectionGoal::None;
7207 }
7208 let (cursor, goal) = movement::down_by_rows(
7209 map,
7210 selection.start,
7211 action.lines,
7212 selection.goal,
7213 false,
7214 text_layout_details,
7215 );
7216 selection.collapse_to(cursor, goal);
7217 });
7218 })
7219 }
7220
7221 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7222 let text_layout_details = &self.text_layout_details(cx);
7223 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7224 s.move_heads_with(|map, head, goal| {
7225 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7226 })
7227 })
7228 }
7229
7230 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7231 let text_layout_details = &self.text_layout_details(cx);
7232 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7233 s.move_heads_with(|map, head, goal| {
7234 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7235 })
7236 })
7237 }
7238
7239 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7240 let Some(row_count) = self.visible_row_count() else {
7241 return;
7242 };
7243
7244 let text_layout_details = &self.text_layout_details(cx);
7245
7246 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7247 s.move_heads_with(|map, head, goal| {
7248 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7249 })
7250 })
7251 }
7252
7253 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7254 if self.take_rename(true, cx).is_some() {
7255 return;
7256 }
7257
7258 if self
7259 .context_menu
7260 .borrow_mut()
7261 .as_mut()
7262 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7263 .unwrap_or(false)
7264 {
7265 return;
7266 }
7267
7268 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7269 cx.propagate();
7270 return;
7271 }
7272
7273 let Some(row_count) = self.visible_row_count() else {
7274 return;
7275 };
7276
7277 let autoscroll = if action.center_cursor {
7278 Autoscroll::center()
7279 } else {
7280 Autoscroll::fit()
7281 };
7282
7283 let text_layout_details = &self.text_layout_details(cx);
7284
7285 self.change_selections(Some(autoscroll), cx, |s| {
7286 let line_mode = s.line_mode;
7287 s.move_with(|map, selection| {
7288 if !selection.is_empty() && !line_mode {
7289 selection.goal = SelectionGoal::None;
7290 }
7291 let (cursor, goal) = movement::up_by_rows(
7292 map,
7293 selection.end,
7294 row_count,
7295 selection.goal,
7296 false,
7297 text_layout_details,
7298 );
7299 selection.collapse_to(cursor, goal);
7300 });
7301 });
7302 }
7303
7304 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7305 let text_layout_details = &self.text_layout_details(cx);
7306 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7307 s.move_heads_with(|map, head, goal| {
7308 movement::up(map, head, goal, false, text_layout_details)
7309 })
7310 })
7311 }
7312
7313 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7314 self.take_rename(true, cx);
7315
7316 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7317 cx.propagate();
7318 return;
7319 }
7320
7321 let text_layout_details = &self.text_layout_details(cx);
7322 let selection_count = self.selections.count();
7323 let first_selection = self.selections.first_anchor();
7324
7325 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7326 let line_mode = s.line_mode;
7327 s.move_with(|map, selection| {
7328 if !selection.is_empty() && !line_mode {
7329 selection.goal = SelectionGoal::None;
7330 }
7331 let (cursor, goal) = movement::down(
7332 map,
7333 selection.end,
7334 selection.goal,
7335 false,
7336 text_layout_details,
7337 );
7338 selection.collapse_to(cursor, goal);
7339 });
7340 });
7341
7342 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7343 {
7344 cx.propagate();
7345 }
7346 }
7347
7348 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7349 let Some(row_count) = self.visible_row_count() else {
7350 return;
7351 };
7352
7353 let text_layout_details = &self.text_layout_details(cx);
7354
7355 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7356 s.move_heads_with(|map, head, goal| {
7357 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7358 })
7359 })
7360 }
7361
7362 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7363 if self.take_rename(true, cx).is_some() {
7364 return;
7365 }
7366
7367 if self
7368 .context_menu
7369 .borrow_mut()
7370 .as_mut()
7371 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7372 .unwrap_or(false)
7373 {
7374 return;
7375 }
7376
7377 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7378 cx.propagate();
7379 return;
7380 }
7381
7382 let Some(row_count) = self.visible_row_count() else {
7383 return;
7384 };
7385
7386 let autoscroll = if action.center_cursor {
7387 Autoscroll::center()
7388 } else {
7389 Autoscroll::fit()
7390 };
7391
7392 let text_layout_details = &self.text_layout_details(cx);
7393 self.change_selections(Some(autoscroll), cx, |s| {
7394 let line_mode = s.line_mode;
7395 s.move_with(|map, selection| {
7396 if !selection.is_empty() && !line_mode {
7397 selection.goal = SelectionGoal::None;
7398 }
7399 let (cursor, goal) = movement::down_by_rows(
7400 map,
7401 selection.end,
7402 row_count,
7403 selection.goal,
7404 false,
7405 text_layout_details,
7406 );
7407 selection.collapse_to(cursor, goal);
7408 });
7409 });
7410 }
7411
7412 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7413 let text_layout_details = &self.text_layout_details(cx);
7414 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7415 s.move_heads_with(|map, head, goal| {
7416 movement::down(map, head, goal, false, text_layout_details)
7417 })
7418 });
7419 }
7420
7421 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7422 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7423 context_menu.select_first(self.completion_provider.as_deref(), cx);
7424 }
7425 }
7426
7427 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7428 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7429 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7430 }
7431 }
7432
7433 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7434 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7435 context_menu.select_next(self.completion_provider.as_deref(), cx);
7436 }
7437 }
7438
7439 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7440 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7441 context_menu.select_last(self.completion_provider.as_deref(), cx);
7442 }
7443 }
7444
7445 pub fn move_to_previous_word_start(
7446 &mut self,
7447 _: &MoveToPreviousWordStart,
7448 cx: &mut ViewContext<Self>,
7449 ) {
7450 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7451 s.move_cursors_with(|map, head, _| {
7452 (
7453 movement::previous_word_start(map, head),
7454 SelectionGoal::None,
7455 )
7456 });
7457 })
7458 }
7459
7460 pub fn move_to_previous_subword_start(
7461 &mut self,
7462 _: &MoveToPreviousSubwordStart,
7463 cx: &mut ViewContext<Self>,
7464 ) {
7465 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7466 s.move_cursors_with(|map, head, _| {
7467 (
7468 movement::previous_subword_start(map, head),
7469 SelectionGoal::None,
7470 )
7471 });
7472 })
7473 }
7474
7475 pub fn select_to_previous_word_start(
7476 &mut self,
7477 _: &SelectToPreviousWordStart,
7478 cx: &mut ViewContext<Self>,
7479 ) {
7480 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7481 s.move_heads_with(|map, head, _| {
7482 (
7483 movement::previous_word_start(map, head),
7484 SelectionGoal::None,
7485 )
7486 });
7487 })
7488 }
7489
7490 pub fn select_to_previous_subword_start(
7491 &mut self,
7492 _: &SelectToPreviousSubwordStart,
7493 cx: &mut ViewContext<Self>,
7494 ) {
7495 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7496 s.move_heads_with(|map, head, _| {
7497 (
7498 movement::previous_subword_start(map, head),
7499 SelectionGoal::None,
7500 )
7501 });
7502 })
7503 }
7504
7505 pub fn delete_to_previous_word_start(
7506 &mut self,
7507 action: &DeleteToPreviousWordStart,
7508 cx: &mut ViewContext<Self>,
7509 ) {
7510 self.transact(cx, |this, cx| {
7511 this.select_autoclose_pair(cx);
7512 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7513 let line_mode = s.line_mode;
7514 s.move_with(|map, selection| {
7515 if selection.is_empty() && !line_mode {
7516 let cursor = if action.ignore_newlines {
7517 movement::previous_word_start(map, selection.head())
7518 } else {
7519 movement::previous_word_start_or_newline(map, selection.head())
7520 };
7521 selection.set_head(cursor, SelectionGoal::None);
7522 }
7523 });
7524 });
7525 this.insert("", cx);
7526 });
7527 }
7528
7529 pub fn delete_to_previous_subword_start(
7530 &mut self,
7531 _: &DeleteToPreviousSubwordStart,
7532 cx: &mut ViewContext<Self>,
7533 ) {
7534 self.transact(cx, |this, cx| {
7535 this.select_autoclose_pair(cx);
7536 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7537 let line_mode = s.line_mode;
7538 s.move_with(|map, selection| {
7539 if selection.is_empty() && !line_mode {
7540 let cursor = movement::previous_subword_start(map, selection.head());
7541 selection.set_head(cursor, SelectionGoal::None);
7542 }
7543 });
7544 });
7545 this.insert("", cx);
7546 });
7547 }
7548
7549 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7550 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7551 s.move_cursors_with(|map, head, _| {
7552 (movement::next_word_end(map, head), SelectionGoal::None)
7553 });
7554 })
7555 }
7556
7557 pub fn move_to_next_subword_end(
7558 &mut self,
7559 _: &MoveToNextSubwordEnd,
7560 cx: &mut ViewContext<Self>,
7561 ) {
7562 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7563 s.move_cursors_with(|map, head, _| {
7564 (movement::next_subword_end(map, head), SelectionGoal::None)
7565 });
7566 })
7567 }
7568
7569 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7570 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7571 s.move_heads_with(|map, head, _| {
7572 (movement::next_word_end(map, head), SelectionGoal::None)
7573 });
7574 })
7575 }
7576
7577 pub fn select_to_next_subword_end(
7578 &mut self,
7579 _: &SelectToNextSubwordEnd,
7580 cx: &mut ViewContext<Self>,
7581 ) {
7582 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7583 s.move_heads_with(|map, head, _| {
7584 (movement::next_subword_end(map, head), SelectionGoal::None)
7585 });
7586 })
7587 }
7588
7589 pub fn delete_to_next_word_end(
7590 &mut self,
7591 action: &DeleteToNextWordEnd,
7592 cx: &mut ViewContext<Self>,
7593 ) {
7594 self.transact(cx, |this, cx| {
7595 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7596 let line_mode = s.line_mode;
7597 s.move_with(|map, selection| {
7598 if selection.is_empty() && !line_mode {
7599 let cursor = if action.ignore_newlines {
7600 movement::next_word_end(map, selection.head())
7601 } else {
7602 movement::next_word_end_or_newline(map, selection.head())
7603 };
7604 selection.set_head(cursor, SelectionGoal::None);
7605 }
7606 });
7607 });
7608 this.insert("", cx);
7609 });
7610 }
7611
7612 pub fn delete_to_next_subword_end(
7613 &mut self,
7614 _: &DeleteToNextSubwordEnd,
7615 cx: &mut ViewContext<Self>,
7616 ) {
7617 self.transact(cx, |this, cx| {
7618 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7619 s.move_with(|map, selection| {
7620 if selection.is_empty() {
7621 let cursor = movement::next_subword_end(map, selection.head());
7622 selection.set_head(cursor, SelectionGoal::None);
7623 }
7624 });
7625 });
7626 this.insert("", cx);
7627 });
7628 }
7629
7630 pub fn move_to_beginning_of_line(
7631 &mut self,
7632 action: &MoveToBeginningOfLine,
7633 cx: &mut ViewContext<Self>,
7634 ) {
7635 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7636 s.move_cursors_with(|map, head, _| {
7637 (
7638 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7639 SelectionGoal::None,
7640 )
7641 });
7642 })
7643 }
7644
7645 pub fn select_to_beginning_of_line(
7646 &mut self,
7647 action: &SelectToBeginningOfLine,
7648 cx: &mut ViewContext<Self>,
7649 ) {
7650 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7651 s.move_heads_with(|map, head, _| {
7652 (
7653 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7654 SelectionGoal::None,
7655 )
7656 });
7657 });
7658 }
7659
7660 pub fn delete_to_beginning_of_line(
7661 &mut self,
7662 _: &DeleteToBeginningOfLine,
7663 cx: &mut ViewContext<Self>,
7664 ) {
7665 self.transact(cx, |this, cx| {
7666 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7667 s.move_with(|_, selection| {
7668 selection.reversed = true;
7669 });
7670 });
7671
7672 this.select_to_beginning_of_line(
7673 &SelectToBeginningOfLine {
7674 stop_at_soft_wraps: false,
7675 },
7676 cx,
7677 );
7678 this.backspace(&Backspace, cx);
7679 });
7680 }
7681
7682 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7683 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7684 s.move_cursors_with(|map, head, _| {
7685 (
7686 movement::line_end(map, head, action.stop_at_soft_wraps),
7687 SelectionGoal::None,
7688 )
7689 });
7690 })
7691 }
7692
7693 pub fn select_to_end_of_line(
7694 &mut self,
7695 action: &SelectToEndOfLine,
7696 cx: &mut ViewContext<Self>,
7697 ) {
7698 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7699 s.move_heads_with(|map, head, _| {
7700 (
7701 movement::line_end(map, head, action.stop_at_soft_wraps),
7702 SelectionGoal::None,
7703 )
7704 });
7705 })
7706 }
7707
7708 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7709 self.transact(cx, |this, cx| {
7710 this.select_to_end_of_line(
7711 &SelectToEndOfLine {
7712 stop_at_soft_wraps: false,
7713 },
7714 cx,
7715 );
7716 this.delete(&Delete, cx);
7717 });
7718 }
7719
7720 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7721 self.transact(cx, |this, cx| {
7722 this.select_to_end_of_line(
7723 &SelectToEndOfLine {
7724 stop_at_soft_wraps: false,
7725 },
7726 cx,
7727 );
7728 this.cut(&Cut, cx);
7729 });
7730 }
7731
7732 pub fn move_to_start_of_paragraph(
7733 &mut self,
7734 _: &MoveToStartOfParagraph,
7735 cx: &mut ViewContext<Self>,
7736 ) {
7737 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7738 cx.propagate();
7739 return;
7740 }
7741
7742 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7743 s.move_with(|map, selection| {
7744 selection.collapse_to(
7745 movement::start_of_paragraph(map, selection.head(), 1),
7746 SelectionGoal::None,
7747 )
7748 });
7749 })
7750 }
7751
7752 pub fn move_to_end_of_paragraph(
7753 &mut self,
7754 _: &MoveToEndOfParagraph,
7755 cx: &mut ViewContext<Self>,
7756 ) {
7757 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7758 cx.propagate();
7759 return;
7760 }
7761
7762 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7763 s.move_with(|map, selection| {
7764 selection.collapse_to(
7765 movement::end_of_paragraph(map, selection.head(), 1),
7766 SelectionGoal::None,
7767 )
7768 });
7769 })
7770 }
7771
7772 pub fn select_to_start_of_paragraph(
7773 &mut self,
7774 _: &SelectToStartOfParagraph,
7775 cx: &mut ViewContext<Self>,
7776 ) {
7777 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7778 cx.propagate();
7779 return;
7780 }
7781
7782 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7783 s.move_heads_with(|map, head, _| {
7784 (
7785 movement::start_of_paragraph(map, head, 1),
7786 SelectionGoal::None,
7787 )
7788 });
7789 })
7790 }
7791
7792 pub fn select_to_end_of_paragraph(
7793 &mut self,
7794 _: &SelectToEndOfParagraph,
7795 cx: &mut ViewContext<Self>,
7796 ) {
7797 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7798 cx.propagate();
7799 return;
7800 }
7801
7802 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7803 s.move_heads_with(|map, head, _| {
7804 (
7805 movement::end_of_paragraph(map, head, 1),
7806 SelectionGoal::None,
7807 )
7808 });
7809 })
7810 }
7811
7812 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7813 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7814 cx.propagate();
7815 return;
7816 }
7817
7818 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7819 s.select_ranges(vec![0..0]);
7820 });
7821 }
7822
7823 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7824 let mut selection = self.selections.last::<Point>(cx);
7825 selection.set_head(Point::zero(), SelectionGoal::None);
7826
7827 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7828 s.select(vec![selection]);
7829 });
7830 }
7831
7832 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7833 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7834 cx.propagate();
7835 return;
7836 }
7837
7838 let cursor = self.buffer.read(cx).read(cx).len();
7839 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7840 s.select_ranges(vec![cursor..cursor])
7841 });
7842 }
7843
7844 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7845 self.nav_history = nav_history;
7846 }
7847
7848 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7849 self.nav_history.as_ref()
7850 }
7851
7852 fn push_to_nav_history(
7853 &mut self,
7854 cursor_anchor: Anchor,
7855 new_position: Option<Point>,
7856 cx: &mut ViewContext<Self>,
7857 ) {
7858 if let Some(nav_history) = self.nav_history.as_mut() {
7859 let buffer = self.buffer.read(cx).read(cx);
7860 let cursor_position = cursor_anchor.to_point(&buffer);
7861 let scroll_state = self.scroll_manager.anchor();
7862 let scroll_top_row = scroll_state.top_row(&buffer);
7863 drop(buffer);
7864
7865 if let Some(new_position) = new_position {
7866 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7867 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7868 return;
7869 }
7870 }
7871
7872 nav_history.push(
7873 Some(NavigationData {
7874 cursor_anchor,
7875 cursor_position,
7876 scroll_anchor: scroll_state,
7877 scroll_top_row,
7878 }),
7879 cx,
7880 );
7881 }
7882 }
7883
7884 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7885 let buffer = self.buffer.read(cx).snapshot(cx);
7886 let mut selection = self.selections.first::<usize>(cx);
7887 selection.set_head(buffer.len(), SelectionGoal::None);
7888 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7889 s.select(vec![selection]);
7890 });
7891 }
7892
7893 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7894 let end = self.buffer.read(cx).read(cx).len();
7895 self.change_selections(None, cx, |s| {
7896 s.select_ranges(vec![0..end]);
7897 });
7898 }
7899
7900 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7901 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7902 let mut selections = self.selections.all::<Point>(cx);
7903 let max_point = display_map.buffer_snapshot.max_point();
7904 for selection in &mut selections {
7905 let rows = selection.spanned_rows(true, &display_map);
7906 selection.start = Point::new(rows.start.0, 0);
7907 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7908 selection.reversed = false;
7909 }
7910 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7911 s.select(selections);
7912 });
7913 }
7914
7915 pub fn split_selection_into_lines(
7916 &mut self,
7917 _: &SplitSelectionIntoLines,
7918 cx: &mut ViewContext<Self>,
7919 ) {
7920 let mut to_unfold = Vec::new();
7921 let mut new_selection_ranges = Vec::new();
7922 {
7923 let selections = self.selections.all::<Point>(cx);
7924 let buffer = self.buffer.read(cx).read(cx);
7925 for selection in selections {
7926 for row in selection.start.row..selection.end.row {
7927 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7928 new_selection_ranges.push(cursor..cursor);
7929 }
7930 new_selection_ranges.push(selection.end..selection.end);
7931 to_unfold.push(selection.start..selection.end);
7932 }
7933 }
7934 self.unfold_ranges(&to_unfold, true, true, cx);
7935 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7936 s.select_ranges(new_selection_ranges);
7937 });
7938 }
7939
7940 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7941 self.add_selection(true, cx);
7942 }
7943
7944 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7945 self.add_selection(false, cx);
7946 }
7947
7948 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7949 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7950 let mut selections = self.selections.all::<Point>(cx);
7951 let text_layout_details = self.text_layout_details(cx);
7952 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7953 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7954 let range = oldest_selection.display_range(&display_map).sorted();
7955
7956 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7957 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7958 let positions = start_x.min(end_x)..start_x.max(end_x);
7959
7960 selections.clear();
7961 let mut stack = Vec::new();
7962 for row in range.start.row().0..=range.end.row().0 {
7963 if let Some(selection) = self.selections.build_columnar_selection(
7964 &display_map,
7965 DisplayRow(row),
7966 &positions,
7967 oldest_selection.reversed,
7968 &text_layout_details,
7969 ) {
7970 stack.push(selection.id);
7971 selections.push(selection);
7972 }
7973 }
7974
7975 if above {
7976 stack.reverse();
7977 }
7978
7979 AddSelectionsState { above, stack }
7980 });
7981
7982 let last_added_selection = *state.stack.last().unwrap();
7983 let mut new_selections = Vec::new();
7984 if above == state.above {
7985 let end_row = if above {
7986 DisplayRow(0)
7987 } else {
7988 display_map.max_point().row()
7989 };
7990
7991 'outer: for selection in selections {
7992 if selection.id == last_added_selection {
7993 let range = selection.display_range(&display_map).sorted();
7994 debug_assert_eq!(range.start.row(), range.end.row());
7995 let mut row = range.start.row();
7996 let positions =
7997 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7998 px(start)..px(end)
7999 } else {
8000 let start_x =
8001 display_map.x_for_display_point(range.start, &text_layout_details);
8002 let end_x =
8003 display_map.x_for_display_point(range.end, &text_layout_details);
8004 start_x.min(end_x)..start_x.max(end_x)
8005 };
8006
8007 while row != end_row {
8008 if above {
8009 row.0 -= 1;
8010 } else {
8011 row.0 += 1;
8012 }
8013
8014 if let Some(new_selection) = self.selections.build_columnar_selection(
8015 &display_map,
8016 row,
8017 &positions,
8018 selection.reversed,
8019 &text_layout_details,
8020 ) {
8021 state.stack.push(new_selection.id);
8022 if above {
8023 new_selections.push(new_selection);
8024 new_selections.push(selection);
8025 } else {
8026 new_selections.push(selection);
8027 new_selections.push(new_selection);
8028 }
8029
8030 continue 'outer;
8031 }
8032 }
8033 }
8034
8035 new_selections.push(selection);
8036 }
8037 } else {
8038 new_selections = selections;
8039 new_selections.retain(|s| s.id != last_added_selection);
8040 state.stack.pop();
8041 }
8042
8043 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8044 s.select(new_selections);
8045 });
8046 if state.stack.len() > 1 {
8047 self.add_selections_state = Some(state);
8048 }
8049 }
8050
8051 pub fn select_next_match_internal(
8052 &mut self,
8053 display_map: &DisplaySnapshot,
8054 replace_newest: bool,
8055 autoscroll: Option<Autoscroll>,
8056 cx: &mut ViewContext<Self>,
8057 ) -> Result<()> {
8058 fn select_next_match_ranges(
8059 this: &mut Editor,
8060 range: Range<usize>,
8061 replace_newest: bool,
8062 auto_scroll: Option<Autoscroll>,
8063 cx: &mut ViewContext<Editor>,
8064 ) {
8065 this.unfold_ranges(&[range.clone()], false, true, cx);
8066 this.change_selections(auto_scroll, cx, |s| {
8067 if replace_newest {
8068 s.delete(s.newest_anchor().id);
8069 }
8070 s.insert_range(range.clone());
8071 });
8072 }
8073
8074 let buffer = &display_map.buffer_snapshot;
8075 let mut selections = self.selections.all::<usize>(cx);
8076 if let Some(mut select_next_state) = self.select_next_state.take() {
8077 let query = &select_next_state.query;
8078 if !select_next_state.done {
8079 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8080 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8081 let mut next_selected_range = None;
8082
8083 let bytes_after_last_selection =
8084 buffer.bytes_in_range(last_selection.end..buffer.len());
8085 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8086 let query_matches = query
8087 .stream_find_iter(bytes_after_last_selection)
8088 .map(|result| (last_selection.end, result))
8089 .chain(
8090 query
8091 .stream_find_iter(bytes_before_first_selection)
8092 .map(|result| (0, result)),
8093 );
8094
8095 for (start_offset, query_match) in query_matches {
8096 let query_match = query_match.unwrap(); // can only fail due to I/O
8097 let offset_range =
8098 start_offset + query_match.start()..start_offset + query_match.end();
8099 let display_range = offset_range.start.to_display_point(display_map)
8100 ..offset_range.end.to_display_point(display_map);
8101
8102 if !select_next_state.wordwise
8103 || (!movement::is_inside_word(display_map, display_range.start)
8104 && !movement::is_inside_word(display_map, display_range.end))
8105 {
8106 // TODO: This is n^2, because we might check all the selections
8107 if !selections
8108 .iter()
8109 .any(|selection| selection.range().overlaps(&offset_range))
8110 {
8111 next_selected_range = Some(offset_range);
8112 break;
8113 }
8114 }
8115 }
8116
8117 if let Some(next_selected_range) = next_selected_range {
8118 select_next_match_ranges(
8119 self,
8120 next_selected_range,
8121 replace_newest,
8122 autoscroll,
8123 cx,
8124 );
8125 } else {
8126 select_next_state.done = true;
8127 }
8128 }
8129
8130 self.select_next_state = Some(select_next_state);
8131 } else {
8132 let mut only_carets = true;
8133 let mut same_text_selected = true;
8134 let mut selected_text = None;
8135
8136 let mut selections_iter = selections.iter().peekable();
8137 while let Some(selection) = selections_iter.next() {
8138 if selection.start != selection.end {
8139 only_carets = false;
8140 }
8141
8142 if same_text_selected {
8143 if selected_text.is_none() {
8144 selected_text =
8145 Some(buffer.text_for_range(selection.range()).collect::<String>());
8146 }
8147
8148 if let Some(next_selection) = selections_iter.peek() {
8149 if next_selection.range().len() == selection.range().len() {
8150 let next_selected_text = buffer
8151 .text_for_range(next_selection.range())
8152 .collect::<String>();
8153 if Some(next_selected_text) != selected_text {
8154 same_text_selected = false;
8155 selected_text = None;
8156 }
8157 } else {
8158 same_text_selected = false;
8159 selected_text = None;
8160 }
8161 }
8162 }
8163 }
8164
8165 if only_carets {
8166 for selection in &mut selections {
8167 let word_range = movement::surrounding_word(
8168 display_map,
8169 selection.start.to_display_point(display_map),
8170 );
8171 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8172 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8173 selection.goal = SelectionGoal::None;
8174 selection.reversed = false;
8175 select_next_match_ranges(
8176 self,
8177 selection.start..selection.end,
8178 replace_newest,
8179 autoscroll,
8180 cx,
8181 );
8182 }
8183
8184 if selections.len() == 1 {
8185 let selection = selections
8186 .last()
8187 .expect("ensured that there's only one selection");
8188 let query = buffer
8189 .text_for_range(selection.start..selection.end)
8190 .collect::<String>();
8191 let is_empty = query.is_empty();
8192 let select_state = SelectNextState {
8193 query: AhoCorasick::new(&[query])?,
8194 wordwise: true,
8195 done: is_empty,
8196 };
8197 self.select_next_state = Some(select_state);
8198 } else {
8199 self.select_next_state = None;
8200 }
8201 } else if let Some(selected_text) = selected_text {
8202 self.select_next_state = Some(SelectNextState {
8203 query: AhoCorasick::new(&[selected_text])?,
8204 wordwise: false,
8205 done: false,
8206 });
8207 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8208 }
8209 }
8210 Ok(())
8211 }
8212
8213 pub fn select_all_matches(
8214 &mut self,
8215 _action: &SelectAllMatches,
8216 cx: &mut ViewContext<Self>,
8217 ) -> Result<()> {
8218 self.push_to_selection_history();
8219 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8220
8221 self.select_next_match_internal(&display_map, false, None, cx)?;
8222 let Some(select_next_state) = self.select_next_state.as_mut() else {
8223 return Ok(());
8224 };
8225 if select_next_state.done {
8226 return Ok(());
8227 }
8228
8229 let mut new_selections = self.selections.all::<usize>(cx);
8230
8231 let buffer = &display_map.buffer_snapshot;
8232 let query_matches = select_next_state
8233 .query
8234 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8235
8236 for query_match in query_matches {
8237 let query_match = query_match.unwrap(); // can only fail due to I/O
8238 let offset_range = query_match.start()..query_match.end();
8239 let display_range = offset_range.start.to_display_point(&display_map)
8240 ..offset_range.end.to_display_point(&display_map);
8241
8242 if !select_next_state.wordwise
8243 || (!movement::is_inside_word(&display_map, display_range.start)
8244 && !movement::is_inside_word(&display_map, display_range.end))
8245 {
8246 self.selections.change_with(cx, |selections| {
8247 new_selections.push(Selection {
8248 id: selections.new_selection_id(),
8249 start: offset_range.start,
8250 end: offset_range.end,
8251 reversed: false,
8252 goal: SelectionGoal::None,
8253 });
8254 });
8255 }
8256 }
8257
8258 new_selections.sort_by_key(|selection| selection.start);
8259 let mut ix = 0;
8260 while ix + 1 < new_selections.len() {
8261 let current_selection = &new_selections[ix];
8262 let next_selection = &new_selections[ix + 1];
8263 if current_selection.range().overlaps(&next_selection.range()) {
8264 if current_selection.id < next_selection.id {
8265 new_selections.remove(ix + 1);
8266 } else {
8267 new_selections.remove(ix);
8268 }
8269 } else {
8270 ix += 1;
8271 }
8272 }
8273
8274 select_next_state.done = true;
8275 self.unfold_ranges(
8276 &new_selections
8277 .iter()
8278 .map(|selection| selection.range())
8279 .collect::<Vec<_>>(),
8280 false,
8281 false,
8282 cx,
8283 );
8284 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8285 selections.select(new_selections)
8286 });
8287
8288 Ok(())
8289 }
8290
8291 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8292 self.push_to_selection_history();
8293 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8294 self.select_next_match_internal(
8295 &display_map,
8296 action.replace_newest,
8297 Some(Autoscroll::newest()),
8298 cx,
8299 )?;
8300 Ok(())
8301 }
8302
8303 pub fn select_previous(
8304 &mut self,
8305 action: &SelectPrevious,
8306 cx: &mut ViewContext<Self>,
8307 ) -> Result<()> {
8308 self.push_to_selection_history();
8309 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8310 let buffer = &display_map.buffer_snapshot;
8311 let mut selections = self.selections.all::<usize>(cx);
8312 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8313 let query = &select_prev_state.query;
8314 if !select_prev_state.done {
8315 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8316 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8317 let mut next_selected_range = None;
8318 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8319 let bytes_before_last_selection =
8320 buffer.reversed_bytes_in_range(0..last_selection.start);
8321 let bytes_after_first_selection =
8322 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8323 let query_matches = query
8324 .stream_find_iter(bytes_before_last_selection)
8325 .map(|result| (last_selection.start, result))
8326 .chain(
8327 query
8328 .stream_find_iter(bytes_after_first_selection)
8329 .map(|result| (buffer.len(), result)),
8330 );
8331 for (end_offset, query_match) in query_matches {
8332 let query_match = query_match.unwrap(); // can only fail due to I/O
8333 let offset_range =
8334 end_offset - query_match.end()..end_offset - query_match.start();
8335 let display_range = offset_range.start.to_display_point(&display_map)
8336 ..offset_range.end.to_display_point(&display_map);
8337
8338 if !select_prev_state.wordwise
8339 || (!movement::is_inside_word(&display_map, display_range.start)
8340 && !movement::is_inside_word(&display_map, display_range.end))
8341 {
8342 next_selected_range = Some(offset_range);
8343 break;
8344 }
8345 }
8346
8347 if let Some(next_selected_range) = next_selected_range {
8348 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8349 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8350 if action.replace_newest {
8351 s.delete(s.newest_anchor().id);
8352 }
8353 s.insert_range(next_selected_range);
8354 });
8355 } else {
8356 select_prev_state.done = true;
8357 }
8358 }
8359
8360 self.select_prev_state = Some(select_prev_state);
8361 } else {
8362 let mut only_carets = true;
8363 let mut same_text_selected = true;
8364 let mut selected_text = None;
8365
8366 let mut selections_iter = selections.iter().peekable();
8367 while let Some(selection) = selections_iter.next() {
8368 if selection.start != selection.end {
8369 only_carets = false;
8370 }
8371
8372 if same_text_selected {
8373 if selected_text.is_none() {
8374 selected_text =
8375 Some(buffer.text_for_range(selection.range()).collect::<String>());
8376 }
8377
8378 if let Some(next_selection) = selections_iter.peek() {
8379 if next_selection.range().len() == selection.range().len() {
8380 let next_selected_text = buffer
8381 .text_for_range(next_selection.range())
8382 .collect::<String>();
8383 if Some(next_selected_text) != selected_text {
8384 same_text_selected = false;
8385 selected_text = None;
8386 }
8387 } else {
8388 same_text_selected = false;
8389 selected_text = None;
8390 }
8391 }
8392 }
8393 }
8394
8395 if only_carets {
8396 for selection in &mut selections {
8397 let word_range = movement::surrounding_word(
8398 &display_map,
8399 selection.start.to_display_point(&display_map),
8400 );
8401 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8402 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8403 selection.goal = SelectionGoal::None;
8404 selection.reversed = false;
8405 }
8406 if selections.len() == 1 {
8407 let selection = selections
8408 .last()
8409 .expect("ensured that there's only one selection");
8410 let query = buffer
8411 .text_for_range(selection.start..selection.end)
8412 .collect::<String>();
8413 let is_empty = query.is_empty();
8414 let select_state = SelectNextState {
8415 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8416 wordwise: true,
8417 done: is_empty,
8418 };
8419 self.select_prev_state = Some(select_state);
8420 } else {
8421 self.select_prev_state = None;
8422 }
8423
8424 self.unfold_ranges(
8425 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8426 false,
8427 true,
8428 cx,
8429 );
8430 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8431 s.select(selections);
8432 });
8433 } else if let Some(selected_text) = selected_text {
8434 self.select_prev_state = Some(SelectNextState {
8435 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8436 wordwise: false,
8437 done: false,
8438 });
8439 self.select_previous(action, cx)?;
8440 }
8441 }
8442 Ok(())
8443 }
8444
8445 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8446 if self.read_only(cx) {
8447 return;
8448 }
8449 let text_layout_details = &self.text_layout_details(cx);
8450 self.transact(cx, |this, cx| {
8451 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8452 let mut edits = Vec::new();
8453 let mut selection_edit_ranges = Vec::new();
8454 let mut last_toggled_row = None;
8455 let snapshot = this.buffer.read(cx).read(cx);
8456 let empty_str: Arc<str> = Arc::default();
8457 let mut suffixes_inserted = Vec::new();
8458 let ignore_indent = action.ignore_indent;
8459
8460 fn comment_prefix_range(
8461 snapshot: &MultiBufferSnapshot,
8462 row: MultiBufferRow,
8463 comment_prefix: &str,
8464 comment_prefix_whitespace: &str,
8465 ignore_indent: bool,
8466 ) -> Range<Point> {
8467 let indent_size = if ignore_indent {
8468 0
8469 } else {
8470 snapshot.indent_size_for_line(row).len
8471 };
8472
8473 let start = Point::new(row.0, indent_size);
8474
8475 let mut line_bytes = snapshot
8476 .bytes_in_range(start..snapshot.max_point())
8477 .flatten()
8478 .copied();
8479
8480 // If this line currently begins with the line comment prefix, then record
8481 // the range containing the prefix.
8482 if line_bytes
8483 .by_ref()
8484 .take(comment_prefix.len())
8485 .eq(comment_prefix.bytes())
8486 {
8487 // Include any whitespace that matches the comment prefix.
8488 let matching_whitespace_len = line_bytes
8489 .zip(comment_prefix_whitespace.bytes())
8490 .take_while(|(a, b)| a == b)
8491 .count() as u32;
8492 let end = Point::new(
8493 start.row,
8494 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8495 );
8496 start..end
8497 } else {
8498 start..start
8499 }
8500 }
8501
8502 fn comment_suffix_range(
8503 snapshot: &MultiBufferSnapshot,
8504 row: MultiBufferRow,
8505 comment_suffix: &str,
8506 comment_suffix_has_leading_space: bool,
8507 ) -> Range<Point> {
8508 let end = Point::new(row.0, snapshot.line_len(row));
8509 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8510
8511 let mut line_end_bytes = snapshot
8512 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8513 .flatten()
8514 .copied();
8515
8516 let leading_space_len = if suffix_start_column > 0
8517 && line_end_bytes.next() == Some(b' ')
8518 && comment_suffix_has_leading_space
8519 {
8520 1
8521 } else {
8522 0
8523 };
8524
8525 // If this line currently begins with the line comment prefix, then record
8526 // the range containing the prefix.
8527 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8528 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8529 start..end
8530 } else {
8531 end..end
8532 }
8533 }
8534
8535 // TODO: Handle selections that cross excerpts
8536 for selection in &mut selections {
8537 let start_column = snapshot
8538 .indent_size_for_line(MultiBufferRow(selection.start.row))
8539 .len;
8540 let language = if let Some(language) =
8541 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8542 {
8543 language
8544 } else {
8545 continue;
8546 };
8547
8548 selection_edit_ranges.clear();
8549
8550 // If multiple selections contain a given row, avoid processing that
8551 // row more than once.
8552 let mut start_row = MultiBufferRow(selection.start.row);
8553 if last_toggled_row == Some(start_row) {
8554 start_row = start_row.next_row();
8555 }
8556 let end_row =
8557 if selection.end.row > selection.start.row && selection.end.column == 0 {
8558 MultiBufferRow(selection.end.row - 1)
8559 } else {
8560 MultiBufferRow(selection.end.row)
8561 };
8562 last_toggled_row = Some(end_row);
8563
8564 if start_row > end_row {
8565 continue;
8566 }
8567
8568 // If the language has line comments, toggle those.
8569 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8570
8571 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8572 if ignore_indent {
8573 full_comment_prefixes = full_comment_prefixes
8574 .into_iter()
8575 .map(|s| Arc::from(s.trim_end()))
8576 .collect();
8577 }
8578
8579 if !full_comment_prefixes.is_empty() {
8580 let first_prefix = full_comment_prefixes
8581 .first()
8582 .expect("prefixes is non-empty");
8583 let prefix_trimmed_lengths = full_comment_prefixes
8584 .iter()
8585 .map(|p| p.trim_end_matches(' ').len())
8586 .collect::<SmallVec<[usize; 4]>>();
8587
8588 let mut all_selection_lines_are_comments = true;
8589
8590 for row in start_row.0..=end_row.0 {
8591 let row = MultiBufferRow(row);
8592 if start_row < end_row && snapshot.is_line_blank(row) {
8593 continue;
8594 }
8595
8596 let prefix_range = full_comment_prefixes
8597 .iter()
8598 .zip(prefix_trimmed_lengths.iter().copied())
8599 .map(|(prefix, trimmed_prefix_len)| {
8600 comment_prefix_range(
8601 snapshot.deref(),
8602 row,
8603 &prefix[..trimmed_prefix_len],
8604 &prefix[trimmed_prefix_len..],
8605 ignore_indent,
8606 )
8607 })
8608 .max_by_key(|range| range.end.column - range.start.column)
8609 .expect("prefixes is non-empty");
8610
8611 if prefix_range.is_empty() {
8612 all_selection_lines_are_comments = false;
8613 }
8614
8615 selection_edit_ranges.push(prefix_range);
8616 }
8617
8618 if all_selection_lines_are_comments {
8619 edits.extend(
8620 selection_edit_ranges
8621 .iter()
8622 .cloned()
8623 .map(|range| (range, empty_str.clone())),
8624 );
8625 } else {
8626 let min_column = selection_edit_ranges
8627 .iter()
8628 .map(|range| range.start.column)
8629 .min()
8630 .unwrap_or(0);
8631 edits.extend(selection_edit_ranges.iter().map(|range| {
8632 let position = Point::new(range.start.row, min_column);
8633 (position..position, first_prefix.clone())
8634 }));
8635 }
8636 } else if let Some((full_comment_prefix, comment_suffix)) =
8637 language.block_comment_delimiters()
8638 {
8639 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8640 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8641 let prefix_range = comment_prefix_range(
8642 snapshot.deref(),
8643 start_row,
8644 comment_prefix,
8645 comment_prefix_whitespace,
8646 ignore_indent,
8647 );
8648 let suffix_range = comment_suffix_range(
8649 snapshot.deref(),
8650 end_row,
8651 comment_suffix.trim_start_matches(' '),
8652 comment_suffix.starts_with(' '),
8653 );
8654
8655 if prefix_range.is_empty() || suffix_range.is_empty() {
8656 edits.push((
8657 prefix_range.start..prefix_range.start,
8658 full_comment_prefix.clone(),
8659 ));
8660 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8661 suffixes_inserted.push((end_row, comment_suffix.len()));
8662 } else {
8663 edits.push((prefix_range, empty_str.clone()));
8664 edits.push((suffix_range, empty_str.clone()));
8665 }
8666 } else {
8667 continue;
8668 }
8669 }
8670
8671 drop(snapshot);
8672 this.buffer.update(cx, |buffer, cx| {
8673 buffer.edit(edits, None, cx);
8674 });
8675
8676 // Adjust selections so that they end before any comment suffixes that
8677 // were inserted.
8678 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8679 let mut selections = this.selections.all::<Point>(cx);
8680 let snapshot = this.buffer.read(cx).read(cx);
8681 for selection in &mut selections {
8682 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8683 match row.cmp(&MultiBufferRow(selection.end.row)) {
8684 Ordering::Less => {
8685 suffixes_inserted.next();
8686 continue;
8687 }
8688 Ordering::Greater => break,
8689 Ordering::Equal => {
8690 if selection.end.column == snapshot.line_len(row) {
8691 if selection.is_empty() {
8692 selection.start.column -= suffix_len as u32;
8693 }
8694 selection.end.column -= suffix_len as u32;
8695 }
8696 break;
8697 }
8698 }
8699 }
8700 }
8701
8702 drop(snapshot);
8703 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8704
8705 let selections = this.selections.all::<Point>(cx);
8706 let selections_on_single_row = selections.windows(2).all(|selections| {
8707 selections[0].start.row == selections[1].start.row
8708 && selections[0].end.row == selections[1].end.row
8709 && selections[0].start.row == selections[0].end.row
8710 });
8711 let selections_selecting = selections
8712 .iter()
8713 .any(|selection| selection.start != selection.end);
8714 let advance_downwards = action.advance_downwards
8715 && selections_on_single_row
8716 && !selections_selecting
8717 && !matches!(this.mode, EditorMode::SingleLine { .. });
8718
8719 if advance_downwards {
8720 let snapshot = this.buffer.read(cx).snapshot(cx);
8721
8722 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8723 s.move_cursors_with(|display_snapshot, display_point, _| {
8724 let mut point = display_point.to_point(display_snapshot);
8725 point.row += 1;
8726 point = snapshot.clip_point(point, Bias::Left);
8727 let display_point = point.to_display_point(display_snapshot);
8728 let goal = SelectionGoal::HorizontalPosition(
8729 display_snapshot
8730 .x_for_display_point(display_point, text_layout_details)
8731 .into(),
8732 );
8733 (display_point, goal)
8734 })
8735 });
8736 }
8737 });
8738 }
8739
8740 pub fn select_enclosing_symbol(
8741 &mut self,
8742 _: &SelectEnclosingSymbol,
8743 cx: &mut ViewContext<Self>,
8744 ) {
8745 let buffer = self.buffer.read(cx).snapshot(cx);
8746 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8747
8748 fn update_selection(
8749 selection: &Selection<usize>,
8750 buffer_snap: &MultiBufferSnapshot,
8751 ) -> Option<Selection<usize>> {
8752 let cursor = selection.head();
8753 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8754 for symbol in symbols.iter().rev() {
8755 let start = symbol.range.start.to_offset(buffer_snap);
8756 let end = symbol.range.end.to_offset(buffer_snap);
8757 let new_range = start..end;
8758 if start < selection.start || end > selection.end {
8759 return Some(Selection {
8760 id: selection.id,
8761 start: new_range.start,
8762 end: new_range.end,
8763 goal: SelectionGoal::None,
8764 reversed: selection.reversed,
8765 });
8766 }
8767 }
8768 None
8769 }
8770
8771 let mut selected_larger_symbol = false;
8772 let new_selections = old_selections
8773 .iter()
8774 .map(|selection| match update_selection(selection, &buffer) {
8775 Some(new_selection) => {
8776 if new_selection.range() != selection.range() {
8777 selected_larger_symbol = true;
8778 }
8779 new_selection
8780 }
8781 None => selection.clone(),
8782 })
8783 .collect::<Vec<_>>();
8784
8785 if selected_larger_symbol {
8786 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8787 s.select(new_selections);
8788 });
8789 }
8790 }
8791
8792 pub fn select_larger_syntax_node(
8793 &mut self,
8794 _: &SelectLargerSyntaxNode,
8795 cx: &mut ViewContext<Self>,
8796 ) {
8797 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8798 let buffer = self.buffer.read(cx).snapshot(cx);
8799 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8800
8801 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8802 let mut selected_larger_node = false;
8803 let new_selections = old_selections
8804 .iter()
8805 .map(|selection| {
8806 let old_range = selection.start..selection.end;
8807 let mut new_range = old_range.clone();
8808 let mut new_node = None;
8809 while let Some((node, containing_range)) = buffer.syntax_ancestor(new_range.clone())
8810 {
8811 new_node = Some(node);
8812 new_range = containing_range;
8813 if !display_map.intersects_fold(new_range.start)
8814 && !display_map.intersects_fold(new_range.end)
8815 {
8816 break;
8817 }
8818 }
8819
8820 if let Some(node) = new_node {
8821 // Log the ancestor, to support using this action as a way to explore TreeSitter
8822 // nodes. Parent and grandparent are also logged because this operation will not
8823 // visit nodes that have the same range as their parent.
8824 log::info!("Node: {node:?}");
8825 let parent = node.parent();
8826 log::info!("Parent: {parent:?}");
8827 let grandparent = parent.and_then(|x| x.parent());
8828 log::info!("Grandparent: {grandparent:?}");
8829 }
8830
8831 selected_larger_node |= new_range != old_range;
8832 Selection {
8833 id: selection.id,
8834 start: new_range.start,
8835 end: new_range.end,
8836 goal: SelectionGoal::None,
8837 reversed: selection.reversed,
8838 }
8839 })
8840 .collect::<Vec<_>>();
8841
8842 if selected_larger_node {
8843 stack.push(old_selections);
8844 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8845 s.select(new_selections);
8846 });
8847 }
8848 self.select_larger_syntax_node_stack = stack;
8849 }
8850
8851 pub fn select_smaller_syntax_node(
8852 &mut self,
8853 _: &SelectSmallerSyntaxNode,
8854 cx: &mut ViewContext<Self>,
8855 ) {
8856 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8857 if let Some(selections) = stack.pop() {
8858 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8859 s.select(selections.to_vec());
8860 });
8861 }
8862 self.select_larger_syntax_node_stack = stack;
8863 }
8864
8865 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8866 if !EditorSettings::get_global(cx).gutter.runnables {
8867 self.clear_tasks();
8868 return Task::ready(());
8869 }
8870 let project = self.project.as_ref().map(Model::downgrade);
8871 cx.spawn(|this, mut cx| async move {
8872 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
8873 let Some(project) = project.and_then(|p| p.upgrade()) else {
8874 return;
8875 };
8876 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8877 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8878 }) else {
8879 return;
8880 };
8881
8882 let hide_runnables = project
8883 .update(&mut cx, |project, cx| {
8884 // Do not display any test indicators in non-dev server remote projects.
8885 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8886 })
8887 .unwrap_or(true);
8888 if hide_runnables {
8889 return;
8890 }
8891 let new_rows =
8892 cx.background_executor()
8893 .spawn({
8894 let snapshot = display_snapshot.clone();
8895 async move {
8896 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8897 }
8898 })
8899 .await;
8900 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8901
8902 this.update(&mut cx, |this, _| {
8903 this.clear_tasks();
8904 for (key, value) in rows {
8905 this.insert_tasks(key, value);
8906 }
8907 })
8908 .ok();
8909 })
8910 }
8911 fn fetch_runnable_ranges(
8912 snapshot: &DisplaySnapshot,
8913 range: Range<Anchor>,
8914 ) -> Vec<language::RunnableRange> {
8915 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8916 }
8917
8918 fn runnable_rows(
8919 project: Model<Project>,
8920 snapshot: DisplaySnapshot,
8921 runnable_ranges: Vec<RunnableRange>,
8922 mut cx: AsyncWindowContext,
8923 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8924 runnable_ranges
8925 .into_iter()
8926 .filter_map(|mut runnable| {
8927 let tasks = cx
8928 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8929 .ok()?;
8930 if tasks.is_empty() {
8931 return None;
8932 }
8933
8934 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8935
8936 let row = snapshot
8937 .buffer_snapshot
8938 .buffer_line_for_row(MultiBufferRow(point.row))?
8939 .1
8940 .start
8941 .row;
8942
8943 let context_range =
8944 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8945 Some((
8946 (runnable.buffer_id, row),
8947 RunnableTasks {
8948 templates: tasks,
8949 offset: MultiBufferOffset(runnable.run_range.start),
8950 context_range,
8951 column: point.column,
8952 extra_variables: runnable.extra_captures,
8953 },
8954 ))
8955 })
8956 .collect()
8957 }
8958
8959 fn templates_with_tags(
8960 project: &Model<Project>,
8961 runnable: &mut Runnable,
8962 cx: &WindowContext,
8963 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8964 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8965 let (worktree_id, file) = project
8966 .buffer_for_id(runnable.buffer, cx)
8967 .and_then(|buffer| buffer.read(cx).file())
8968 .map(|file| (file.worktree_id(cx), file.clone()))
8969 .unzip();
8970
8971 (
8972 project.task_store().read(cx).task_inventory().cloned(),
8973 worktree_id,
8974 file,
8975 )
8976 });
8977
8978 let tags = mem::take(&mut runnable.tags);
8979 let mut tags: Vec<_> = tags
8980 .into_iter()
8981 .flat_map(|tag| {
8982 let tag = tag.0.clone();
8983 inventory
8984 .as_ref()
8985 .into_iter()
8986 .flat_map(|inventory| {
8987 inventory.read(cx).list_tasks(
8988 file.clone(),
8989 Some(runnable.language.clone()),
8990 worktree_id,
8991 cx,
8992 )
8993 })
8994 .filter(move |(_, template)| {
8995 template.tags.iter().any(|source_tag| source_tag == &tag)
8996 })
8997 })
8998 .sorted_by_key(|(kind, _)| kind.to_owned())
8999 .collect();
9000 if let Some((leading_tag_source, _)) = tags.first() {
9001 // Strongest source wins; if we have worktree tag binding, prefer that to
9002 // global and language bindings;
9003 // if we have a global binding, prefer that to language binding.
9004 let first_mismatch = tags
9005 .iter()
9006 .position(|(tag_source, _)| tag_source != leading_tag_source);
9007 if let Some(index) = first_mismatch {
9008 tags.truncate(index);
9009 }
9010 }
9011
9012 tags
9013 }
9014
9015 pub fn move_to_enclosing_bracket(
9016 &mut self,
9017 _: &MoveToEnclosingBracket,
9018 cx: &mut ViewContext<Self>,
9019 ) {
9020 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9021 s.move_offsets_with(|snapshot, selection| {
9022 let Some(enclosing_bracket_ranges) =
9023 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9024 else {
9025 return;
9026 };
9027
9028 let mut best_length = usize::MAX;
9029 let mut best_inside = false;
9030 let mut best_in_bracket_range = false;
9031 let mut best_destination = None;
9032 for (open, close) in enclosing_bracket_ranges {
9033 let close = close.to_inclusive();
9034 let length = close.end() - open.start;
9035 let inside = selection.start >= open.end && selection.end <= *close.start();
9036 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9037 || close.contains(&selection.head());
9038
9039 // If best is next to a bracket and current isn't, skip
9040 if !in_bracket_range && best_in_bracket_range {
9041 continue;
9042 }
9043
9044 // Prefer smaller lengths unless best is inside and current isn't
9045 if length > best_length && (best_inside || !inside) {
9046 continue;
9047 }
9048
9049 best_length = length;
9050 best_inside = inside;
9051 best_in_bracket_range = in_bracket_range;
9052 best_destination = Some(
9053 if close.contains(&selection.start) && close.contains(&selection.end) {
9054 if inside {
9055 open.end
9056 } else {
9057 open.start
9058 }
9059 } else if inside {
9060 *close.start()
9061 } else {
9062 *close.end()
9063 },
9064 );
9065 }
9066
9067 if let Some(destination) = best_destination {
9068 selection.collapse_to(destination, SelectionGoal::None);
9069 }
9070 })
9071 });
9072 }
9073
9074 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9075 self.end_selection(cx);
9076 self.selection_history.mode = SelectionHistoryMode::Undoing;
9077 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9078 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9079 self.select_next_state = entry.select_next_state;
9080 self.select_prev_state = entry.select_prev_state;
9081 self.add_selections_state = entry.add_selections_state;
9082 self.request_autoscroll(Autoscroll::newest(), cx);
9083 }
9084 self.selection_history.mode = SelectionHistoryMode::Normal;
9085 }
9086
9087 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9088 self.end_selection(cx);
9089 self.selection_history.mode = SelectionHistoryMode::Redoing;
9090 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9091 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9092 self.select_next_state = entry.select_next_state;
9093 self.select_prev_state = entry.select_prev_state;
9094 self.add_selections_state = entry.add_selections_state;
9095 self.request_autoscroll(Autoscroll::newest(), cx);
9096 }
9097 self.selection_history.mode = SelectionHistoryMode::Normal;
9098 }
9099
9100 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9101 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9102 }
9103
9104 pub fn expand_excerpts_down(
9105 &mut self,
9106 action: &ExpandExcerptsDown,
9107 cx: &mut ViewContext<Self>,
9108 ) {
9109 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9110 }
9111
9112 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9113 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9114 }
9115
9116 pub fn expand_excerpts_for_direction(
9117 &mut self,
9118 lines: u32,
9119 direction: ExpandExcerptDirection,
9120 cx: &mut ViewContext<Self>,
9121 ) {
9122 let selections = self.selections.disjoint_anchors();
9123
9124 let lines = if lines == 0 {
9125 EditorSettings::get_global(cx).expand_excerpt_lines
9126 } else {
9127 lines
9128 };
9129
9130 self.buffer.update(cx, |buffer, cx| {
9131 let snapshot = buffer.snapshot(cx);
9132 let mut excerpt_ids = selections
9133 .iter()
9134 .flat_map(|selection| {
9135 snapshot
9136 .excerpts_for_range(selection.range())
9137 .map(|excerpt| excerpt.id())
9138 })
9139 .collect::<Vec<_>>();
9140 excerpt_ids.sort();
9141 excerpt_ids.dedup();
9142 buffer.expand_excerpts(excerpt_ids, lines, direction, cx)
9143 })
9144 }
9145
9146 pub fn expand_excerpt(
9147 &mut self,
9148 excerpt: ExcerptId,
9149 direction: ExpandExcerptDirection,
9150 cx: &mut ViewContext<Self>,
9151 ) {
9152 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9153 self.buffer.update(cx, |buffer, cx| {
9154 buffer.expand_excerpts([excerpt], lines, direction, cx)
9155 })
9156 }
9157
9158 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9159 self.go_to_diagnostic_impl(Direction::Next, cx)
9160 }
9161
9162 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9163 self.go_to_diagnostic_impl(Direction::Prev, cx)
9164 }
9165
9166 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9167 let buffer = self.buffer.read(cx).snapshot(cx);
9168 let selection = self.selections.newest::<usize>(cx);
9169
9170 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9171 if direction == Direction::Next {
9172 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9173 self.activate_diagnostics(popover.group_id(), cx);
9174 if let Some(active_diagnostics) = self.active_diagnostics.as_ref() {
9175 let primary_range_start = active_diagnostics.primary_range.start;
9176 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9177 let mut new_selection = s.newest_anchor().clone();
9178 new_selection.collapse_to(primary_range_start, SelectionGoal::None);
9179 s.select_anchors(vec![new_selection.clone()]);
9180 });
9181 }
9182 return;
9183 }
9184 }
9185
9186 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9187 active_diagnostics
9188 .primary_range
9189 .to_offset(&buffer)
9190 .to_inclusive()
9191 });
9192 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9193 if active_primary_range.contains(&selection.head()) {
9194 *active_primary_range.start()
9195 } else {
9196 selection.head()
9197 }
9198 } else {
9199 selection.head()
9200 };
9201 let snapshot = self.snapshot(cx);
9202 loop {
9203 let diagnostics = if direction == Direction::Prev {
9204 buffer
9205 .diagnostics_in_range(0..search_start, true)
9206 .map(|DiagnosticEntry { diagnostic, range }| DiagnosticEntry {
9207 diagnostic,
9208 range: range.to_offset(&buffer),
9209 })
9210 .collect::<Vec<_>>()
9211 } else {
9212 buffer
9213 .diagnostics_in_range(search_start..buffer.len(), false)
9214 .map(|DiagnosticEntry { diagnostic, range }| DiagnosticEntry {
9215 diagnostic,
9216 range: range.to_offset(&buffer),
9217 })
9218 .collect::<Vec<_>>()
9219 }
9220 .into_iter()
9221 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9222 let group = diagnostics
9223 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9224 // be sorted in a stable way
9225 // skip until we are at current active diagnostic, if it exists
9226 .skip_while(|entry| {
9227 (match direction {
9228 Direction::Prev => entry.range.start >= search_start,
9229 Direction::Next => entry.range.start <= search_start,
9230 }) && self
9231 .active_diagnostics
9232 .as_ref()
9233 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9234 })
9235 .find_map(|entry| {
9236 if entry.diagnostic.is_primary
9237 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9238 && !entry.range.is_empty()
9239 // if we match with the active diagnostic, skip it
9240 && Some(entry.diagnostic.group_id)
9241 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9242 {
9243 Some((entry.range, entry.diagnostic.group_id))
9244 } else {
9245 None
9246 }
9247 });
9248
9249 if let Some((primary_range, group_id)) = group {
9250 self.activate_diagnostics(group_id, cx);
9251 if self.active_diagnostics.is_some() {
9252 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9253 s.select(vec![Selection {
9254 id: selection.id,
9255 start: primary_range.start,
9256 end: primary_range.start,
9257 reversed: false,
9258 goal: SelectionGoal::None,
9259 }]);
9260 });
9261 }
9262 break;
9263 } else {
9264 // Cycle around to the start of the buffer, potentially moving back to the start of
9265 // the currently active diagnostic.
9266 active_primary_range.take();
9267 if direction == Direction::Prev {
9268 if search_start == buffer.len() {
9269 break;
9270 } else {
9271 search_start = buffer.len();
9272 }
9273 } else if search_start == 0 {
9274 break;
9275 } else {
9276 search_start = 0;
9277 }
9278 }
9279 }
9280 }
9281
9282 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9283 let snapshot = self.snapshot(cx);
9284 let selection = self.selections.newest::<Point>(cx);
9285 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9286 }
9287
9288 fn go_to_hunk_after_position(
9289 &mut self,
9290 snapshot: &EditorSnapshot,
9291 position: Point,
9292 cx: &mut ViewContext<Editor>,
9293 ) -> Option<MultiBufferDiffHunk> {
9294 for (ix, position) in [position, Point::zero()].into_iter().enumerate() {
9295 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9296 snapshot,
9297 position,
9298 ix > 0,
9299 snapshot.diff_map.diff_hunks_in_range(
9300 position + Point::new(1, 0)..snapshot.buffer_snapshot.max_point(),
9301 &snapshot.buffer_snapshot,
9302 ),
9303 cx,
9304 ) {
9305 return Some(hunk);
9306 }
9307 }
9308 None
9309 }
9310
9311 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9312 let snapshot = self.snapshot(cx);
9313 let selection = self.selections.newest::<Point>(cx);
9314 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9315 }
9316
9317 fn go_to_hunk_before_position(
9318 &mut self,
9319 snapshot: &EditorSnapshot,
9320 position: Point,
9321 cx: &mut ViewContext<Editor>,
9322 ) -> Option<MultiBufferDiffHunk> {
9323 for (ix, position) in [position, snapshot.buffer_snapshot.max_point()]
9324 .into_iter()
9325 .enumerate()
9326 {
9327 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9328 snapshot,
9329 position,
9330 ix > 0,
9331 snapshot
9332 .diff_map
9333 .diff_hunks_in_range_rev(Point::zero()..position, &snapshot.buffer_snapshot),
9334 cx,
9335 ) {
9336 return Some(hunk);
9337 }
9338 }
9339 None
9340 }
9341
9342 fn go_to_next_hunk_in_direction(
9343 &mut self,
9344 snapshot: &DisplaySnapshot,
9345 initial_point: Point,
9346 is_wrapped: bool,
9347 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9348 cx: &mut ViewContext<Editor>,
9349 ) -> Option<MultiBufferDiffHunk> {
9350 let display_point = initial_point.to_display_point(snapshot);
9351 let mut hunks = hunks
9352 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9353 .filter(|(display_hunk, _)| {
9354 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9355 })
9356 .dedup();
9357
9358 if let Some((display_hunk, hunk)) = hunks.next() {
9359 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9360 let row = display_hunk.start_display_row();
9361 let point = DisplayPoint::new(row, 0);
9362 s.select_display_ranges([point..point]);
9363 });
9364
9365 Some(hunk)
9366 } else {
9367 None
9368 }
9369 }
9370
9371 pub fn go_to_definition(
9372 &mut self,
9373 _: &GoToDefinition,
9374 cx: &mut ViewContext<Self>,
9375 ) -> Task<Result<Navigated>> {
9376 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9377 cx.spawn(|editor, mut cx| async move {
9378 if definition.await? == Navigated::Yes {
9379 return Ok(Navigated::Yes);
9380 }
9381 match editor.update(&mut cx, |editor, cx| {
9382 editor.find_all_references(&FindAllReferences, cx)
9383 })? {
9384 Some(references) => references.await,
9385 None => Ok(Navigated::No),
9386 }
9387 })
9388 }
9389
9390 pub fn go_to_declaration(
9391 &mut self,
9392 _: &GoToDeclaration,
9393 cx: &mut ViewContext<Self>,
9394 ) -> Task<Result<Navigated>> {
9395 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9396 }
9397
9398 pub fn go_to_declaration_split(
9399 &mut self,
9400 _: &GoToDeclaration,
9401 cx: &mut ViewContext<Self>,
9402 ) -> Task<Result<Navigated>> {
9403 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9404 }
9405
9406 pub fn go_to_implementation(
9407 &mut self,
9408 _: &GoToImplementation,
9409 cx: &mut ViewContext<Self>,
9410 ) -> Task<Result<Navigated>> {
9411 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9412 }
9413
9414 pub fn go_to_implementation_split(
9415 &mut self,
9416 _: &GoToImplementationSplit,
9417 cx: &mut ViewContext<Self>,
9418 ) -> Task<Result<Navigated>> {
9419 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9420 }
9421
9422 pub fn go_to_type_definition(
9423 &mut self,
9424 _: &GoToTypeDefinition,
9425 cx: &mut ViewContext<Self>,
9426 ) -> Task<Result<Navigated>> {
9427 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9428 }
9429
9430 pub fn go_to_definition_split(
9431 &mut self,
9432 _: &GoToDefinitionSplit,
9433 cx: &mut ViewContext<Self>,
9434 ) -> Task<Result<Navigated>> {
9435 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9436 }
9437
9438 pub fn go_to_type_definition_split(
9439 &mut self,
9440 _: &GoToTypeDefinitionSplit,
9441 cx: &mut ViewContext<Self>,
9442 ) -> Task<Result<Navigated>> {
9443 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9444 }
9445
9446 fn go_to_definition_of_kind(
9447 &mut self,
9448 kind: GotoDefinitionKind,
9449 split: bool,
9450 cx: &mut ViewContext<Self>,
9451 ) -> Task<Result<Navigated>> {
9452 let Some(provider) = self.semantics_provider.clone() else {
9453 return Task::ready(Ok(Navigated::No));
9454 };
9455 let head = self.selections.newest::<usize>(cx).head();
9456 let buffer = self.buffer.read(cx);
9457 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9458 text_anchor
9459 } else {
9460 return Task::ready(Ok(Navigated::No));
9461 };
9462
9463 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9464 return Task::ready(Ok(Navigated::No));
9465 };
9466
9467 cx.spawn(|editor, mut cx| async move {
9468 let definitions = definitions.await?;
9469 let navigated = editor
9470 .update(&mut cx, |editor, cx| {
9471 editor.navigate_to_hover_links(
9472 Some(kind),
9473 definitions
9474 .into_iter()
9475 .filter(|location| {
9476 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9477 })
9478 .map(HoverLink::Text)
9479 .collect::<Vec<_>>(),
9480 split,
9481 cx,
9482 )
9483 })?
9484 .await?;
9485 anyhow::Ok(navigated)
9486 })
9487 }
9488
9489 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9490 let selection = self.selections.newest_anchor();
9491 let head = selection.head();
9492 let tail = selection.tail();
9493
9494 let Some((buffer, start_position)) =
9495 self.buffer.read(cx).text_anchor_for_position(head, cx)
9496 else {
9497 return;
9498 };
9499
9500 let end_position = if head != tail {
9501 let Some((_, pos)) = self.buffer.read(cx).text_anchor_for_position(tail, cx) else {
9502 return;
9503 };
9504 Some(pos)
9505 } else {
9506 None
9507 };
9508
9509 let url_finder = cx.spawn(|editor, mut cx| async move {
9510 let url = if let Some(end_pos) = end_position {
9511 find_url_from_range(&buffer, start_position..end_pos, cx.clone())
9512 } else {
9513 find_url(&buffer, start_position, cx.clone()).map(|(_, url)| url)
9514 };
9515
9516 if let Some(url) = url {
9517 editor.update(&mut cx, |_, cx| {
9518 cx.open_url(&url);
9519 })
9520 } else {
9521 Ok(())
9522 }
9523 });
9524
9525 url_finder.detach();
9526 }
9527
9528 pub fn open_selected_filename(&mut self, _: &OpenSelectedFilename, cx: &mut ViewContext<Self>) {
9529 let Some(workspace) = self.workspace() else {
9530 return;
9531 };
9532
9533 let position = self.selections.newest_anchor().head();
9534
9535 let Some((buffer, buffer_position)) =
9536 self.buffer.read(cx).text_anchor_for_position(position, cx)
9537 else {
9538 return;
9539 };
9540
9541 let project = self.project.clone();
9542
9543 cx.spawn(|_, mut cx| async move {
9544 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9545
9546 if let Some((_, path)) = result {
9547 workspace
9548 .update(&mut cx, |workspace, cx| {
9549 workspace.open_resolved_path(path, cx)
9550 })?
9551 .await?;
9552 }
9553 anyhow::Ok(())
9554 })
9555 .detach();
9556 }
9557
9558 pub(crate) fn navigate_to_hover_links(
9559 &mut self,
9560 kind: Option<GotoDefinitionKind>,
9561 mut definitions: Vec<HoverLink>,
9562 split: bool,
9563 cx: &mut ViewContext<Editor>,
9564 ) -> Task<Result<Navigated>> {
9565 // If there is one definition, just open it directly
9566 if definitions.len() == 1 {
9567 let definition = definitions.pop().unwrap();
9568
9569 enum TargetTaskResult {
9570 Location(Option<Location>),
9571 AlreadyNavigated,
9572 }
9573
9574 let target_task = match definition {
9575 HoverLink::Text(link) => {
9576 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9577 }
9578 HoverLink::InlayHint(lsp_location, server_id) => {
9579 let computation = self.compute_target_location(lsp_location, server_id, cx);
9580 cx.background_executor().spawn(async move {
9581 let location = computation.await?;
9582 Ok(TargetTaskResult::Location(location))
9583 })
9584 }
9585 HoverLink::Url(url) => {
9586 cx.open_url(&url);
9587 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9588 }
9589 HoverLink::File(path) => {
9590 if let Some(workspace) = self.workspace() {
9591 cx.spawn(|_, mut cx| async move {
9592 workspace
9593 .update(&mut cx, |workspace, cx| {
9594 workspace.open_resolved_path(path, cx)
9595 })?
9596 .await
9597 .map(|_| TargetTaskResult::AlreadyNavigated)
9598 })
9599 } else {
9600 Task::ready(Ok(TargetTaskResult::Location(None)))
9601 }
9602 }
9603 };
9604 cx.spawn(|editor, mut cx| async move {
9605 let target = match target_task.await.context("target resolution task")? {
9606 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9607 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9608 TargetTaskResult::Location(Some(target)) => target,
9609 };
9610
9611 editor.update(&mut cx, |editor, cx| {
9612 let Some(workspace) = editor.workspace() else {
9613 return Navigated::No;
9614 };
9615 let pane = workspace.read(cx).active_pane().clone();
9616
9617 let range = target.range.to_offset(target.buffer.read(cx));
9618 let range = editor.range_for_match(&range);
9619
9620 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9621 let buffer = target.buffer.read(cx);
9622 let range = check_multiline_range(buffer, range);
9623 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9624 s.select_ranges([range]);
9625 });
9626 } else {
9627 cx.window_context().defer(move |cx| {
9628 let target_editor: View<Self> =
9629 workspace.update(cx, |workspace, cx| {
9630 let pane = if split {
9631 workspace.adjacent_pane(cx)
9632 } else {
9633 workspace.active_pane().clone()
9634 };
9635
9636 workspace.open_project_item(
9637 pane,
9638 target.buffer.clone(),
9639 true,
9640 true,
9641 cx,
9642 )
9643 });
9644 target_editor.update(cx, |target_editor, cx| {
9645 // When selecting a definition in a different buffer, disable the nav history
9646 // to avoid creating a history entry at the previous cursor location.
9647 pane.update(cx, |pane, _| pane.disable_history());
9648 let buffer = target.buffer.read(cx);
9649 let range = check_multiline_range(buffer, range);
9650 target_editor.change_selections(
9651 Some(Autoscroll::focused()),
9652 cx,
9653 |s| {
9654 s.select_ranges([range]);
9655 },
9656 );
9657 pane.update(cx, |pane, _| pane.enable_history());
9658 });
9659 });
9660 }
9661 Navigated::Yes
9662 })
9663 })
9664 } else if !definitions.is_empty() {
9665 cx.spawn(|editor, mut cx| async move {
9666 let (title, location_tasks, workspace) = editor
9667 .update(&mut cx, |editor, cx| {
9668 let tab_kind = match kind {
9669 Some(GotoDefinitionKind::Implementation) => "Implementations",
9670 _ => "Definitions",
9671 };
9672 let title = definitions
9673 .iter()
9674 .find_map(|definition| match definition {
9675 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9676 let buffer = origin.buffer.read(cx);
9677 format!(
9678 "{} for {}",
9679 tab_kind,
9680 buffer
9681 .text_for_range(origin.range.clone())
9682 .collect::<String>()
9683 )
9684 }),
9685 HoverLink::InlayHint(_, _) => None,
9686 HoverLink::Url(_) => None,
9687 HoverLink::File(_) => None,
9688 })
9689 .unwrap_or(tab_kind.to_string());
9690 let location_tasks = definitions
9691 .into_iter()
9692 .map(|definition| match definition {
9693 HoverLink::Text(link) => Task::ready(Ok(Some(link.target))),
9694 HoverLink::InlayHint(lsp_location, server_id) => {
9695 editor.compute_target_location(lsp_location, server_id, cx)
9696 }
9697 HoverLink::Url(_) => Task::ready(Ok(None)),
9698 HoverLink::File(_) => Task::ready(Ok(None)),
9699 })
9700 .collect::<Vec<_>>();
9701 (title, location_tasks, editor.workspace().clone())
9702 })
9703 .context("location tasks preparation")?;
9704
9705 let locations = future::join_all(location_tasks)
9706 .await
9707 .into_iter()
9708 .filter_map(|location| location.transpose())
9709 .collect::<Result<_>>()
9710 .context("location tasks")?;
9711
9712 let Some(workspace) = workspace else {
9713 return Ok(Navigated::No);
9714 };
9715 let opened = workspace
9716 .update(&mut cx, |workspace, cx| {
9717 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9718 })
9719 .ok();
9720
9721 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9722 })
9723 } else {
9724 Task::ready(Ok(Navigated::No))
9725 }
9726 }
9727
9728 fn compute_target_location(
9729 &self,
9730 lsp_location: lsp::Location,
9731 server_id: LanguageServerId,
9732 cx: &mut ViewContext<Self>,
9733 ) -> Task<anyhow::Result<Option<Location>>> {
9734 let Some(project) = self.project.clone() else {
9735 return Task::ready(Ok(None));
9736 };
9737
9738 cx.spawn(move |editor, mut cx| async move {
9739 let location_task = editor.update(&mut cx, |_, cx| {
9740 project.update(cx, |project, cx| {
9741 let language_server_name = project
9742 .language_server_statuses(cx)
9743 .find(|(id, _)| server_id == *id)
9744 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9745 language_server_name.map(|language_server_name| {
9746 project.open_local_buffer_via_lsp(
9747 lsp_location.uri.clone(),
9748 server_id,
9749 language_server_name,
9750 cx,
9751 )
9752 })
9753 })
9754 })?;
9755 let location = match location_task {
9756 Some(task) => Some({
9757 let target_buffer_handle = task.await.context("open local buffer")?;
9758 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9759 let target_start = target_buffer
9760 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9761 let target_end = target_buffer
9762 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9763 target_buffer.anchor_after(target_start)
9764 ..target_buffer.anchor_before(target_end)
9765 })?;
9766 Location {
9767 buffer: target_buffer_handle,
9768 range,
9769 }
9770 }),
9771 None => None,
9772 };
9773 Ok(location)
9774 })
9775 }
9776
9777 pub fn find_all_references(
9778 &mut self,
9779 _: &FindAllReferences,
9780 cx: &mut ViewContext<Self>,
9781 ) -> Option<Task<Result<Navigated>>> {
9782 let selection = self.selections.newest::<usize>(cx);
9783 let multi_buffer = self.buffer.read(cx);
9784 let head = selection.head();
9785
9786 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9787 let head_anchor = multi_buffer_snapshot.anchor_at(
9788 head,
9789 if head < selection.tail() {
9790 Bias::Right
9791 } else {
9792 Bias::Left
9793 },
9794 );
9795
9796 match self
9797 .find_all_references_task_sources
9798 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9799 {
9800 Ok(_) => {
9801 log::info!(
9802 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9803 );
9804 return None;
9805 }
9806 Err(i) => {
9807 self.find_all_references_task_sources.insert(i, head_anchor);
9808 }
9809 }
9810
9811 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9812 let workspace = self.workspace()?;
9813 let project = workspace.read(cx).project().clone();
9814 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9815 Some(cx.spawn(|editor, mut cx| async move {
9816 let _cleanup = defer({
9817 let mut cx = cx.clone();
9818 move || {
9819 let _ = editor.update(&mut cx, |editor, _| {
9820 if let Ok(i) =
9821 editor
9822 .find_all_references_task_sources
9823 .binary_search_by(|anchor| {
9824 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9825 })
9826 {
9827 editor.find_all_references_task_sources.remove(i);
9828 }
9829 });
9830 }
9831 });
9832
9833 let locations = references.await?;
9834 if locations.is_empty() {
9835 return anyhow::Ok(Navigated::No);
9836 }
9837
9838 workspace.update(&mut cx, |workspace, cx| {
9839 let title = locations
9840 .first()
9841 .as_ref()
9842 .map(|location| {
9843 let buffer = location.buffer.read(cx);
9844 format!(
9845 "References to `{}`",
9846 buffer
9847 .text_for_range(location.range.clone())
9848 .collect::<String>()
9849 )
9850 })
9851 .unwrap();
9852 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9853 Navigated::Yes
9854 })
9855 }))
9856 }
9857
9858 /// Opens a multibuffer with the given project locations in it
9859 pub fn open_locations_in_multibuffer(
9860 workspace: &mut Workspace,
9861 mut locations: Vec<Location>,
9862 title: String,
9863 split: bool,
9864 cx: &mut ViewContext<Workspace>,
9865 ) {
9866 // If there are multiple definitions, open them in a multibuffer
9867 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9868 let mut locations = locations.into_iter().peekable();
9869 let mut ranges_to_highlight = Vec::new();
9870 let capability = workspace.project().read(cx).capability();
9871
9872 let excerpt_buffer = cx.new_model(|cx| {
9873 let mut multibuffer = MultiBuffer::new(capability);
9874 while let Some(location) = locations.next() {
9875 let buffer = location.buffer.read(cx);
9876 let mut ranges_for_buffer = Vec::new();
9877 let range = location.range.to_offset(buffer);
9878 ranges_for_buffer.push(range.clone());
9879
9880 while let Some(next_location) = locations.peek() {
9881 if next_location.buffer == location.buffer {
9882 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9883 locations.next();
9884 } else {
9885 break;
9886 }
9887 }
9888
9889 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9890 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9891 location.buffer.clone(),
9892 ranges_for_buffer,
9893 DEFAULT_MULTIBUFFER_CONTEXT,
9894 cx,
9895 ))
9896 }
9897
9898 multibuffer.with_title(title)
9899 });
9900
9901 let editor = cx.new_view(|cx| {
9902 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9903 });
9904 editor.update(cx, |editor, cx| {
9905 if let Some(first_range) = ranges_to_highlight.first() {
9906 editor.change_selections(None, cx, |selections| {
9907 selections.clear_disjoint();
9908 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9909 });
9910 }
9911 editor.highlight_background::<Self>(
9912 &ranges_to_highlight,
9913 |theme| theme.editor_highlighted_line_background,
9914 cx,
9915 );
9916 editor.register_buffers_with_language_servers(cx);
9917 });
9918
9919 let item = Box::new(editor);
9920 let item_id = item.item_id();
9921
9922 if split {
9923 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9924 } else {
9925 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9926 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9927 pane.close_current_preview_item(cx)
9928 } else {
9929 None
9930 }
9931 });
9932 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9933 }
9934 workspace.active_pane().update(cx, |pane, cx| {
9935 pane.set_preview_item_id(Some(item_id), cx);
9936 });
9937 }
9938
9939 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9940 use language::ToOffset as _;
9941
9942 let provider = self.semantics_provider.clone()?;
9943 let selection = self.selections.newest_anchor().clone();
9944 let (cursor_buffer, cursor_buffer_position) = self
9945 .buffer
9946 .read(cx)
9947 .text_anchor_for_position(selection.head(), cx)?;
9948 let (tail_buffer, cursor_buffer_position_end) = self
9949 .buffer
9950 .read(cx)
9951 .text_anchor_for_position(selection.tail(), cx)?;
9952 if tail_buffer != cursor_buffer {
9953 return None;
9954 }
9955
9956 let snapshot = cursor_buffer.read(cx).snapshot();
9957 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9958 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9959 let prepare_rename = provider
9960 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
9961 .unwrap_or_else(|| Task::ready(Ok(None)));
9962 drop(snapshot);
9963
9964 Some(cx.spawn(|this, mut cx| async move {
9965 let rename_range = if let Some(range) = prepare_rename.await? {
9966 Some(range)
9967 } else {
9968 this.update(&mut cx, |this, cx| {
9969 let buffer = this.buffer.read(cx).snapshot(cx);
9970 let mut buffer_highlights = this
9971 .document_highlights_for_position(selection.head(), &buffer)
9972 .filter(|highlight| {
9973 highlight.start.excerpt_id == selection.head().excerpt_id
9974 && highlight.end.excerpt_id == selection.head().excerpt_id
9975 });
9976 buffer_highlights
9977 .next()
9978 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9979 })?
9980 };
9981 if let Some(rename_range) = rename_range {
9982 this.update(&mut cx, |this, cx| {
9983 let snapshot = cursor_buffer.read(cx).snapshot();
9984 let rename_buffer_range = rename_range.to_offset(&snapshot);
9985 let cursor_offset_in_rename_range =
9986 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9987 let cursor_offset_in_rename_range_end =
9988 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9989
9990 this.take_rename(false, cx);
9991 let buffer = this.buffer.read(cx).read(cx);
9992 let cursor_offset = selection.head().to_offset(&buffer);
9993 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9994 let rename_end = rename_start + rename_buffer_range.len();
9995 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9996 let mut old_highlight_id = None;
9997 let old_name: Arc<str> = buffer
9998 .chunks(rename_start..rename_end, true)
9999 .map(|chunk| {
10000 if old_highlight_id.is_none() {
10001 old_highlight_id = chunk.syntax_highlight_id;
10002 }
10003 chunk.text
10004 })
10005 .collect::<String>()
10006 .into();
10007
10008 drop(buffer);
10009
10010 // Position the selection in the rename editor so that it matches the current selection.
10011 this.show_local_selections = false;
10012 let rename_editor = cx.new_view(|cx| {
10013 let mut editor = Editor::single_line(cx);
10014 editor.buffer.update(cx, |buffer, cx| {
10015 buffer.edit([(0..0, old_name.clone())], None, cx)
10016 });
10017 let rename_selection_range = match cursor_offset_in_rename_range
10018 .cmp(&cursor_offset_in_rename_range_end)
10019 {
10020 Ordering::Equal => {
10021 editor.select_all(&SelectAll, cx);
10022 return editor;
10023 }
10024 Ordering::Less => {
10025 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10026 }
10027 Ordering::Greater => {
10028 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10029 }
10030 };
10031 if rename_selection_range.end > old_name.len() {
10032 editor.select_all(&SelectAll, cx);
10033 } else {
10034 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10035 s.select_ranges([rename_selection_range]);
10036 });
10037 }
10038 editor
10039 });
10040 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10041 if e == &EditorEvent::Focused {
10042 cx.emit(EditorEvent::FocusedIn)
10043 }
10044 })
10045 .detach();
10046
10047 let write_highlights =
10048 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10049 let read_highlights =
10050 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10051 let ranges = write_highlights
10052 .iter()
10053 .flat_map(|(_, ranges)| ranges.iter())
10054 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10055 .cloned()
10056 .collect();
10057
10058 this.highlight_text::<Rename>(
10059 ranges,
10060 HighlightStyle {
10061 fade_out: Some(0.6),
10062 ..Default::default()
10063 },
10064 cx,
10065 );
10066 let rename_focus_handle = rename_editor.focus_handle(cx);
10067 cx.focus(&rename_focus_handle);
10068 let block_id = this.insert_blocks(
10069 [BlockProperties {
10070 style: BlockStyle::Flex,
10071 placement: BlockPlacement::Below(range.start),
10072 height: 1,
10073 render: Arc::new({
10074 let rename_editor = rename_editor.clone();
10075 move |cx: &mut BlockContext| {
10076 let mut text_style = cx.editor_style.text.clone();
10077 if let Some(highlight_style) = old_highlight_id
10078 .and_then(|h| h.style(&cx.editor_style.syntax))
10079 {
10080 text_style = text_style.highlight(highlight_style);
10081 }
10082 div()
10083 .block_mouse_down()
10084 .pl(cx.anchor_x)
10085 .child(EditorElement::new(
10086 &rename_editor,
10087 EditorStyle {
10088 background: cx.theme().system().transparent,
10089 local_player: cx.editor_style.local_player,
10090 text: text_style,
10091 scrollbar_width: cx.editor_style.scrollbar_width,
10092 syntax: cx.editor_style.syntax.clone(),
10093 status: cx.editor_style.status.clone(),
10094 inlay_hints_style: HighlightStyle {
10095 font_weight: Some(FontWeight::BOLD),
10096 ..make_inlay_hints_style(cx)
10097 },
10098 inline_completion_styles: make_suggestion_styles(
10099 cx,
10100 ),
10101 ..EditorStyle::default()
10102 },
10103 ))
10104 .into_any_element()
10105 }
10106 }),
10107 priority: 0,
10108 }],
10109 Some(Autoscroll::fit()),
10110 cx,
10111 )[0];
10112 this.pending_rename = Some(RenameState {
10113 range,
10114 old_name,
10115 editor: rename_editor,
10116 block_id,
10117 });
10118 })?;
10119 }
10120
10121 Ok(())
10122 }))
10123 }
10124
10125 pub fn confirm_rename(
10126 &mut self,
10127 _: &ConfirmRename,
10128 cx: &mut ViewContext<Self>,
10129 ) -> Option<Task<Result<()>>> {
10130 let rename = self.take_rename(false, cx)?;
10131 let workspace = self.workspace()?.downgrade();
10132 let (buffer, start) = self
10133 .buffer
10134 .read(cx)
10135 .text_anchor_for_position(rename.range.start, cx)?;
10136 let (end_buffer, _) = self
10137 .buffer
10138 .read(cx)
10139 .text_anchor_for_position(rename.range.end, cx)?;
10140 if buffer != end_buffer {
10141 return None;
10142 }
10143
10144 let old_name = rename.old_name;
10145 let new_name = rename.editor.read(cx).text(cx);
10146
10147 let rename = self.semantics_provider.as_ref()?.perform_rename(
10148 &buffer,
10149 start,
10150 new_name.clone(),
10151 cx,
10152 )?;
10153
10154 Some(cx.spawn(|editor, mut cx| async move {
10155 let project_transaction = rename.await?;
10156 Self::open_project_transaction(
10157 &editor,
10158 workspace,
10159 project_transaction,
10160 format!("Rename: {} → {}", old_name, new_name),
10161 cx.clone(),
10162 )
10163 .await?;
10164
10165 editor.update(&mut cx, |editor, cx| {
10166 editor.refresh_document_highlights(cx);
10167 })?;
10168 Ok(())
10169 }))
10170 }
10171
10172 fn take_rename(
10173 &mut self,
10174 moving_cursor: bool,
10175 cx: &mut ViewContext<Self>,
10176 ) -> Option<RenameState> {
10177 let rename = self.pending_rename.take()?;
10178 if rename.editor.focus_handle(cx).is_focused(cx) {
10179 cx.focus(&self.focus_handle);
10180 }
10181
10182 self.remove_blocks(
10183 [rename.block_id].into_iter().collect(),
10184 Some(Autoscroll::fit()),
10185 cx,
10186 );
10187 self.clear_highlights::<Rename>(cx);
10188 self.show_local_selections = true;
10189
10190 if moving_cursor {
10191 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10192 editor.selections.newest::<usize>(cx).head()
10193 });
10194
10195 // Update the selection to match the position of the selection inside
10196 // the rename editor.
10197 let snapshot = self.buffer.read(cx).read(cx);
10198 let rename_range = rename.range.to_offset(&snapshot);
10199 let cursor_in_editor = snapshot
10200 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10201 .min(rename_range.end);
10202 drop(snapshot);
10203
10204 self.change_selections(None, cx, |s| {
10205 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10206 });
10207 } else {
10208 self.refresh_document_highlights(cx);
10209 }
10210
10211 Some(rename)
10212 }
10213
10214 pub fn pending_rename(&self) -> Option<&RenameState> {
10215 self.pending_rename.as_ref()
10216 }
10217
10218 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10219 let project = match &self.project {
10220 Some(project) => project.clone(),
10221 None => return None,
10222 };
10223
10224 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10225 }
10226
10227 fn format_selections(
10228 &mut self,
10229 _: &FormatSelections,
10230 cx: &mut ViewContext<Self>,
10231 ) -> Option<Task<Result<()>>> {
10232 let project = match &self.project {
10233 Some(project) => project.clone(),
10234 None => return None,
10235 };
10236
10237 let selections = self
10238 .selections
10239 .all_adjusted(cx)
10240 .into_iter()
10241 .filter(|s| !s.is_empty())
10242 .collect_vec();
10243
10244 Some(self.perform_format(
10245 project,
10246 FormatTrigger::Manual,
10247 FormatTarget::Ranges(selections),
10248 cx,
10249 ))
10250 }
10251
10252 fn perform_format(
10253 &mut self,
10254 project: Model<Project>,
10255 trigger: FormatTrigger,
10256 target: FormatTarget,
10257 cx: &mut ViewContext<Self>,
10258 ) -> Task<Result<()>> {
10259 let buffer = self.buffer().clone();
10260 let mut buffers = buffer.read(cx).all_buffers();
10261 if trigger == FormatTrigger::Save {
10262 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10263 }
10264
10265 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10266 let format = project.update(cx, |project, cx| {
10267 project.format(buffers, true, trigger, target, cx)
10268 });
10269
10270 cx.spawn(|_, mut cx| async move {
10271 let transaction = futures::select_biased! {
10272 () = timeout => {
10273 log::warn!("timed out waiting for formatting");
10274 None
10275 }
10276 transaction = format.log_err().fuse() => transaction,
10277 };
10278
10279 buffer
10280 .update(&mut cx, |buffer, cx| {
10281 if let Some(transaction) = transaction {
10282 if !buffer.is_singleton() {
10283 buffer.push_transaction(&transaction.0, cx);
10284 }
10285 }
10286
10287 cx.notify();
10288 })
10289 .ok();
10290
10291 Ok(())
10292 })
10293 }
10294
10295 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10296 if let Some(project) = self.project.clone() {
10297 self.buffer.update(cx, |multi_buffer, cx| {
10298 project.update(cx, |project, cx| {
10299 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10300 });
10301 })
10302 }
10303 }
10304
10305 fn cancel_language_server_work(
10306 &mut self,
10307 _: &actions::CancelLanguageServerWork,
10308 cx: &mut ViewContext<Self>,
10309 ) {
10310 if let Some(project) = self.project.clone() {
10311 self.buffer.update(cx, |multi_buffer, cx| {
10312 project.update(cx, |project, cx| {
10313 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10314 });
10315 })
10316 }
10317 }
10318
10319 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10320 cx.show_character_palette();
10321 }
10322
10323 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10324 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10325 let buffer = self.buffer.read(cx).snapshot(cx);
10326 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10327 let is_valid = buffer
10328 .diagnostics_in_range(active_diagnostics.primary_range.clone(), false)
10329 .any(|entry| {
10330 let range = entry.range.to_offset(&buffer);
10331 entry.diagnostic.is_primary
10332 && !range.is_empty()
10333 && range.start == primary_range_start
10334 && entry.diagnostic.message == active_diagnostics.primary_message
10335 });
10336
10337 if is_valid != active_diagnostics.is_valid {
10338 active_diagnostics.is_valid = is_valid;
10339 let mut new_styles = HashMap::default();
10340 for (block_id, diagnostic) in &active_diagnostics.blocks {
10341 new_styles.insert(
10342 *block_id,
10343 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10344 );
10345 }
10346 self.display_map.update(cx, |display_map, _cx| {
10347 display_map.replace_blocks(new_styles)
10348 });
10349 }
10350 }
10351 }
10352
10353 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) {
10354 self.dismiss_diagnostics(cx);
10355 let snapshot = self.snapshot(cx);
10356 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10357 let buffer = self.buffer.read(cx).snapshot(cx);
10358
10359 let mut primary_range = None;
10360 let mut primary_message = None;
10361 let mut group_end = Point::zero();
10362 let diagnostic_group = buffer
10363 .diagnostic_group(group_id)
10364 .filter_map(|entry| {
10365 let start = entry.range.start.to_point(&buffer);
10366 let end = entry.range.end.to_point(&buffer);
10367 if snapshot.is_line_folded(MultiBufferRow(start.row))
10368 && (start.row == end.row
10369 || snapshot.is_line_folded(MultiBufferRow(end.row)))
10370 {
10371 return None;
10372 }
10373 if end > group_end {
10374 group_end = end;
10375 }
10376 if entry.diagnostic.is_primary {
10377 primary_range = Some(entry.range.clone());
10378 primary_message = Some(entry.diagnostic.message.clone());
10379 }
10380 Some(entry)
10381 })
10382 .collect::<Vec<_>>();
10383 let primary_range = primary_range?;
10384 let primary_message = primary_message?;
10385
10386 let blocks = display_map
10387 .insert_blocks(
10388 diagnostic_group.iter().map(|entry| {
10389 let diagnostic = entry.diagnostic.clone();
10390 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10391 BlockProperties {
10392 style: BlockStyle::Fixed,
10393 placement: BlockPlacement::Below(
10394 buffer.anchor_after(entry.range.start),
10395 ),
10396 height: message_height,
10397 render: diagnostic_block_renderer(diagnostic, None, true, true),
10398 priority: 0,
10399 }
10400 }),
10401 cx,
10402 )
10403 .into_iter()
10404 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10405 .collect();
10406
10407 Some(ActiveDiagnosticGroup {
10408 primary_range,
10409 primary_message,
10410 group_id,
10411 blocks,
10412 is_valid: true,
10413 })
10414 });
10415 }
10416
10417 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10418 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10419 self.display_map.update(cx, |display_map, cx| {
10420 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10421 });
10422 cx.notify();
10423 }
10424 }
10425
10426 pub fn set_selections_from_remote(
10427 &mut self,
10428 selections: Vec<Selection<Anchor>>,
10429 pending_selection: Option<Selection<Anchor>>,
10430 cx: &mut ViewContext<Self>,
10431 ) {
10432 let old_cursor_position = self.selections.newest_anchor().head();
10433 self.selections.change_with(cx, |s| {
10434 s.select_anchors(selections);
10435 if let Some(pending_selection) = pending_selection {
10436 s.set_pending(pending_selection, SelectMode::Character);
10437 } else {
10438 s.clear_pending();
10439 }
10440 });
10441 self.selections_did_change(false, &old_cursor_position, true, cx);
10442 }
10443
10444 fn push_to_selection_history(&mut self) {
10445 self.selection_history.push(SelectionHistoryEntry {
10446 selections: self.selections.disjoint_anchors(),
10447 select_next_state: self.select_next_state.clone(),
10448 select_prev_state: self.select_prev_state.clone(),
10449 add_selections_state: self.add_selections_state.clone(),
10450 });
10451 }
10452
10453 pub fn transact(
10454 &mut self,
10455 cx: &mut ViewContext<Self>,
10456 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10457 ) -> Option<TransactionId> {
10458 self.start_transaction_at(Instant::now(), cx);
10459 update(self, cx);
10460 self.end_transaction_at(Instant::now(), cx)
10461 }
10462
10463 pub fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10464 self.end_selection(cx);
10465 if let Some(tx_id) = self
10466 .buffer
10467 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10468 {
10469 self.selection_history
10470 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10471 cx.emit(EditorEvent::TransactionBegun {
10472 transaction_id: tx_id,
10473 })
10474 }
10475 }
10476
10477 pub fn end_transaction_at(
10478 &mut self,
10479 now: Instant,
10480 cx: &mut ViewContext<Self>,
10481 ) -> Option<TransactionId> {
10482 if let Some(transaction_id) = self
10483 .buffer
10484 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10485 {
10486 if let Some((_, end_selections)) =
10487 self.selection_history.transaction_mut(transaction_id)
10488 {
10489 *end_selections = Some(self.selections.disjoint_anchors());
10490 } else {
10491 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10492 }
10493
10494 cx.emit(EditorEvent::Edited { transaction_id });
10495 Some(transaction_id)
10496 } else {
10497 None
10498 }
10499 }
10500
10501 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10502 if self.is_singleton(cx) {
10503 let selection = self.selections.newest::<Point>(cx);
10504
10505 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10506 let range = if selection.is_empty() {
10507 let point = selection.head().to_display_point(&display_map);
10508 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10509 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10510 .to_point(&display_map);
10511 start..end
10512 } else {
10513 selection.range()
10514 };
10515 if display_map.folds_in_range(range).next().is_some() {
10516 self.unfold_lines(&Default::default(), cx)
10517 } else {
10518 self.fold(&Default::default(), cx)
10519 }
10520 } else {
10521 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10522 let mut toggled_buffers = HashSet::default();
10523 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10524 self.selections
10525 .disjoint_anchors()
10526 .into_iter()
10527 .map(|selection| selection.range()),
10528 ) {
10529 let buffer_id = buffer_snapshot.remote_id();
10530 if toggled_buffers.insert(buffer_id) {
10531 if self.buffer_folded(buffer_id, cx) {
10532 self.unfold_buffer(buffer_id, cx);
10533 } else {
10534 self.fold_buffer(buffer_id, cx);
10535 }
10536 }
10537 }
10538 }
10539 }
10540
10541 pub fn toggle_fold_recursive(
10542 &mut self,
10543 _: &actions::ToggleFoldRecursive,
10544 cx: &mut ViewContext<Self>,
10545 ) {
10546 let selection = self.selections.newest::<Point>(cx);
10547
10548 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10549 let range = if selection.is_empty() {
10550 let point = selection.head().to_display_point(&display_map);
10551 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10552 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10553 .to_point(&display_map);
10554 start..end
10555 } else {
10556 selection.range()
10557 };
10558 if display_map.folds_in_range(range).next().is_some() {
10559 self.unfold_recursive(&Default::default(), cx)
10560 } else {
10561 self.fold_recursive(&Default::default(), cx)
10562 }
10563 }
10564
10565 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10566 if self.is_singleton(cx) {
10567 let mut to_fold = Vec::new();
10568 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10569 let selections = self.selections.all_adjusted(cx);
10570
10571 for selection in selections {
10572 let range = selection.range().sorted();
10573 let buffer_start_row = range.start.row;
10574
10575 if range.start.row != range.end.row {
10576 let mut found = false;
10577 let mut row = range.start.row;
10578 while row <= range.end.row {
10579 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row))
10580 {
10581 found = true;
10582 row = crease.range().end.row + 1;
10583 to_fold.push(crease);
10584 } else {
10585 row += 1
10586 }
10587 }
10588 if found {
10589 continue;
10590 }
10591 }
10592
10593 for row in (0..=range.start.row).rev() {
10594 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10595 if crease.range().end.row >= buffer_start_row {
10596 to_fold.push(crease);
10597 if row <= range.start.row {
10598 break;
10599 }
10600 }
10601 }
10602 }
10603 }
10604
10605 self.fold_creases(to_fold, true, cx);
10606 } else {
10607 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10608 let mut folded_buffers = HashSet::default();
10609 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10610 self.selections
10611 .disjoint_anchors()
10612 .into_iter()
10613 .map(|selection| selection.range()),
10614 ) {
10615 let buffer_id = buffer_snapshot.remote_id();
10616 if folded_buffers.insert(buffer_id) {
10617 self.fold_buffer(buffer_id, cx);
10618 }
10619 }
10620 }
10621 }
10622
10623 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10624 if !self.buffer.read(cx).is_singleton() {
10625 return;
10626 }
10627
10628 let fold_at_level = fold_at.level;
10629 let snapshot = self.buffer.read(cx).snapshot(cx);
10630 let mut to_fold = Vec::new();
10631 let mut stack = vec![(0, snapshot.max_row().0, 1)];
10632
10633 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10634 while start_row < end_row {
10635 match self
10636 .snapshot(cx)
10637 .crease_for_buffer_row(MultiBufferRow(start_row))
10638 {
10639 Some(crease) => {
10640 let nested_start_row = crease.range().start.row + 1;
10641 let nested_end_row = crease.range().end.row;
10642
10643 if current_level < fold_at_level {
10644 stack.push((nested_start_row, nested_end_row, current_level + 1));
10645 } else if current_level == fold_at_level {
10646 to_fold.push(crease);
10647 }
10648
10649 start_row = nested_end_row + 1;
10650 }
10651 None => start_row += 1,
10652 }
10653 }
10654 }
10655
10656 self.fold_creases(to_fold, true, cx);
10657 }
10658
10659 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10660 if self.buffer.read(cx).is_singleton() {
10661 let mut fold_ranges = Vec::new();
10662 let snapshot = self.buffer.read(cx).snapshot(cx);
10663
10664 for row in 0..snapshot.max_row().0 {
10665 if let Some(foldable_range) =
10666 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
10667 {
10668 fold_ranges.push(foldable_range);
10669 }
10670 }
10671
10672 self.fold_creases(fold_ranges, true, cx);
10673 } else {
10674 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10675 editor
10676 .update(&mut cx, |editor, cx| {
10677 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10678 editor.fold_buffer(buffer_id, cx);
10679 }
10680 })
10681 .ok();
10682 });
10683 }
10684 }
10685
10686 pub fn fold_function_bodies(
10687 &mut self,
10688 _: &actions::FoldFunctionBodies,
10689 cx: &mut ViewContext<Self>,
10690 ) {
10691 let snapshot = self.buffer.read(cx).snapshot(cx);
10692 let Some((_, _, buffer)) = snapshot.as_singleton() else {
10693 return;
10694 };
10695 let creases = buffer
10696 .function_body_fold_ranges(0..buffer.len())
10697 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
10698 .collect();
10699
10700 self.fold_creases(creases, true, cx);
10701 }
10702
10703 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10704 let mut to_fold = Vec::new();
10705 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10706 let selections = self.selections.all_adjusted(cx);
10707
10708 for selection in selections {
10709 let range = selection.range().sorted();
10710 let buffer_start_row = range.start.row;
10711
10712 if range.start.row != range.end.row {
10713 let mut found = false;
10714 for row in range.start.row..=range.end.row {
10715 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10716 found = true;
10717 to_fold.push(crease);
10718 }
10719 }
10720 if found {
10721 continue;
10722 }
10723 }
10724
10725 for row in (0..=range.start.row).rev() {
10726 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10727 if crease.range().end.row >= buffer_start_row {
10728 to_fold.push(crease);
10729 } else {
10730 break;
10731 }
10732 }
10733 }
10734 }
10735
10736 self.fold_creases(to_fold, true, cx);
10737 }
10738
10739 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10740 let buffer_row = fold_at.buffer_row;
10741 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10742
10743 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
10744 let autoscroll = self
10745 .selections
10746 .all::<Point>(cx)
10747 .iter()
10748 .any(|selection| crease.range().overlaps(&selection.range()));
10749
10750 self.fold_creases(vec![crease], autoscroll, cx);
10751 }
10752 }
10753
10754 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10755 if self.is_singleton(cx) {
10756 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10757 let buffer = &display_map.buffer_snapshot;
10758 let selections = self.selections.all::<Point>(cx);
10759 let ranges = selections
10760 .iter()
10761 .map(|s| {
10762 let range = s.display_range(&display_map).sorted();
10763 let mut start = range.start.to_point(&display_map);
10764 let mut end = range.end.to_point(&display_map);
10765 start.column = 0;
10766 end.column = buffer.line_len(MultiBufferRow(end.row));
10767 start..end
10768 })
10769 .collect::<Vec<_>>();
10770
10771 self.unfold_ranges(&ranges, true, true, cx);
10772 } else {
10773 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10774 let mut unfolded_buffers = HashSet::default();
10775 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10776 self.selections
10777 .disjoint_anchors()
10778 .into_iter()
10779 .map(|selection| selection.range()),
10780 ) {
10781 let buffer_id = buffer_snapshot.remote_id();
10782 if unfolded_buffers.insert(buffer_id) {
10783 self.unfold_buffer(buffer_id, cx);
10784 }
10785 }
10786 }
10787 }
10788
10789 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10790 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10791 let selections = self.selections.all::<Point>(cx);
10792 let ranges = selections
10793 .iter()
10794 .map(|s| {
10795 let mut range = s.display_range(&display_map).sorted();
10796 *range.start.column_mut() = 0;
10797 *range.end.column_mut() = display_map.line_len(range.end.row());
10798 let start = range.start.to_point(&display_map);
10799 let end = range.end.to_point(&display_map);
10800 start..end
10801 })
10802 .collect::<Vec<_>>();
10803
10804 self.unfold_ranges(&ranges, true, true, cx);
10805 }
10806
10807 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10808 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10809
10810 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10811 ..Point::new(
10812 unfold_at.buffer_row.0,
10813 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10814 );
10815
10816 let autoscroll = self
10817 .selections
10818 .all::<Point>(cx)
10819 .iter()
10820 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10821
10822 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
10823 }
10824
10825 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10826 if self.buffer.read(cx).is_singleton() {
10827 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10828 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
10829 } else {
10830 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10831 editor
10832 .update(&mut cx, |editor, cx| {
10833 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10834 editor.unfold_buffer(buffer_id, cx);
10835 }
10836 })
10837 .ok();
10838 });
10839 }
10840 }
10841
10842 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10843 let selections = self.selections.all::<Point>(cx);
10844 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10845 let line_mode = self.selections.line_mode;
10846 let ranges = selections
10847 .into_iter()
10848 .map(|s| {
10849 if line_mode {
10850 let start = Point::new(s.start.row, 0);
10851 let end = Point::new(
10852 s.end.row,
10853 display_map
10854 .buffer_snapshot
10855 .line_len(MultiBufferRow(s.end.row)),
10856 );
10857 Crease::simple(start..end, display_map.fold_placeholder.clone())
10858 } else {
10859 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
10860 }
10861 })
10862 .collect::<Vec<_>>();
10863 self.fold_creases(ranges, true, cx);
10864 }
10865
10866 pub fn fold_creases<T: ToOffset + Clone>(
10867 &mut self,
10868 creases: Vec<Crease<T>>,
10869 auto_scroll: bool,
10870 cx: &mut ViewContext<Self>,
10871 ) {
10872 if creases.is_empty() {
10873 return;
10874 }
10875
10876 let mut buffers_affected = HashSet::default();
10877 let multi_buffer = self.buffer().read(cx);
10878 for crease in &creases {
10879 if let Some((_, buffer, _)) =
10880 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
10881 {
10882 buffers_affected.insert(buffer.read(cx).remote_id());
10883 };
10884 }
10885
10886 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
10887
10888 if auto_scroll {
10889 self.request_autoscroll(Autoscroll::fit(), cx);
10890 }
10891
10892 for buffer_id in buffers_affected {
10893 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10894 }
10895
10896 cx.notify();
10897
10898 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10899 // Clear diagnostics block when folding a range that contains it.
10900 let snapshot = self.snapshot(cx);
10901 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10902 drop(snapshot);
10903 self.active_diagnostics = Some(active_diagnostics);
10904 self.dismiss_diagnostics(cx);
10905 } else {
10906 self.active_diagnostics = Some(active_diagnostics);
10907 }
10908 }
10909
10910 self.scrollbar_marker_state.dirty = true;
10911 }
10912
10913 /// Removes any folds whose ranges intersect any of the given ranges.
10914 pub fn unfold_ranges<T: ToOffset + Clone>(
10915 &mut self,
10916 ranges: &[Range<T>],
10917 inclusive: bool,
10918 auto_scroll: bool,
10919 cx: &mut ViewContext<Self>,
10920 ) {
10921 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10922 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
10923 });
10924 }
10925
10926 pub fn fold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10927 if self.buffer().read(cx).is_singleton() || self.buffer_folded(buffer_id, cx) {
10928 return;
10929 }
10930 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10931 return;
10932 };
10933 let folded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10934 self.display_map
10935 .update(cx, |display_map, cx| display_map.fold_buffer(buffer_id, cx));
10936 cx.emit(EditorEvent::BufferFoldToggled {
10937 ids: folded_excerpts.iter().map(|&(id, _)| id).collect(),
10938 folded: true,
10939 });
10940 cx.notify();
10941 }
10942
10943 pub fn unfold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10944 if self.buffer().read(cx).is_singleton() || !self.buffer_folded(buffer_id, cx) {
10945 return;
10946 }
10947 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10948 return;
10949 };
10950 let unfolded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10951 self.display_map.update(cx, |display_map, cx| {
10952 display_map.unfold_buffer(buffer_id, cx);
10953 });
10954 cx.emit(EditorEvent::BufferFoldToggled {
10955 ids: unfolded_excerpts.iter().map(|&(id, _)| id).collect(),
10956 folded: false,
10957 });
10958 cx.notify();
10959 }
10960
10961 pub fn buffer_folded(&self, buffer: BufferId, cx: &AppContext) -> bool {
10962 self.display_map.read(cx).buffer_folded(buffer)
10963 }
10964
10965 /// Removes any folds with the given ranges.
10966 pub fn remove_folds_with_type<T: ToOffset + Clone>(
10967 &mut self,
10968 ranges: &[Range<T>],
10969 type_id: TypeId,
10970 auto_scroll: bool,
10971 cx: &mut ViewContext<Self>,
10972 ) {
10973 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10974 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
10975 });
10976 }
10977
10978 fn remove_folds_with<T: ToOffset + Clone>(
10979 &mut self,
10980 ranges: &[Range<T>],
10981 auto_scroll: bool,
10982 cx: &mut ViewContext<Self>,
10983 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
10984 ) {
10985 if ranges.is_empty() {
10986 return;
10987 }
10988
10989 let mut buffers_affected = HashSet::default();
10990 let multi_buffer = self.buffer().read(cx);
10991 for range in ranges {
10992 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10993 buffers_affected.insert(buffer.read(cx).remote_id());
10994 };
10995 }
10996
10997 self.display_map.update(cx, update);
10998
10999 if auto_scroll {
11000 self.request_autoscroll(Autoscroll::fit(), cx);
11001 }
11002
11003 for buffer_id in buffers_affected {
11004 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
11005 }
11006
11007 cx.notify();
11008 self.scrollbar_marker_state.dirty = true;
11009 self.active_indent_guides_state.dirty = true;
11010 }
11011
11012 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11013 self.display_map.read(cx).fold_placeholder.clone()
11014 }
11015
11016 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11017 if hovered != self.gutter_hovered {
11018 self.gutter_hovered = hovered;
11019 cx.notify();
11020 }
11021 }
11022
11023 pub fn insert_blocks(
11024 &mut self,
11025 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11026 autoscroll: Option<Autoscroll>,
11027 cx: &mut ViewContext<Self>,
11028 ) -> Vec<CustomBlockId> {
11029 let blocks = self
11030 .display_map
11031 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11032 if let Some(autoscroll) = autoscroll {
11033 self.request_autoscroll(autoscroll, cx);
11034 }
11035 cx.notify();
11036 blocks
11037 }
11038
11039 pub fn resize_blocks(
11040 &mut self,
11041 heights: HashMap<CustomBlockId, u32>,
11042 autoscroll: Option<Autoscroll>,
11043 cx: &mut ViewContext<Self>,
11044 ) {
11045 self.display_map
11046 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11047 if let Some(autoscroll) = autoscroll {
11048 self.request_autoscroll(autoscroll, cx);
11049 }
11050 cx.notify();
11051 }
11052
11053 pub fn replace_blocks(
11054 &mut self,
11055 renderers: HashMap<CustomBlockId, RenderBlock>,
11056 autoscroll: Option<Autoscroll>,
11057 cx: &mut ViewContext<Self>,
11058 ) {
11059 self.display_map
11060 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11061 if let Some(autoscroll) = autoscroll {
11062 self.request_autoscroll(autoscroll, cx);
11063 }
11064 cx.notify();
11065 }
11066
11067 pub fn remove_blocks(
11068 &mut self,
11069 block_ids: HashSet<CustomBlockId>,
11070 autoscroll: Option<Autoscroll>,
11071 cx: &mut ViewContext<Self>,
11072 ) {
11073 self.display_map.update(cx, |display_map, cx| {
11074 display_map.remove_blocks(block_ids, cx)
11075 });
11076 if let Some(autoscroll) = autoscroll {
11077 self.request_autoscroll(autoscroll, cx);
11078 }
11079 cx.notify();
11080 }
11081
11082 pub fn row_for_block(
11083 &self,
11084 block_id: CustomBlockId,
11085 cx: &mut ViewContext<Self>,
11086 ) -> Option<DisplayRow> {
11087 self.display_map
11088 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11089 }
11090
11091 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11092 self.focused_block = Some(focused_block);
11093 }
11094
11095 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11096 self.focused_block.take()
11097 }
11098
11099 pub fn insert_creases(
11100 &mut self,
11101 creases: impl IntoIterator<Item = Crease<Anchor>>,
11102 cx: &mut ViewContext<Self>,
11103 ) -> Vec<CreaseId> {
11104 self.display_map
11105 .update(cx, |map, cx| map.insert_creases(creases, cx))
11106 }
11107
11108 pub fn remove_creases(
11109 &mut self,
11110 ids: impl IntoIterator<Item = CreaseId>,
11111 cx: &mut ViewContext<Self>,
11112 ) {
11113 self.display_map
11114 .update(cx, |map, cx| map.remove_creases(ids, cx));
11115 }
11116
11117 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11118 self.display_map
11119 .update(cx, |map, cx| map.snapshot(cx))
11120 .longest_row()
11121 }
11122
11123 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11124 self.display_map
11125 .update(cx, |map, cx| map.snapshot(cx))
11126 .max_point()
11127 }
11128
11129 pub fn text(&self, cx: &AppContext) -> String {
11130 self.buffer.read(cx).read(cx).text()
11131 }
11132
11133 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11134 let text = self.text(cx);
11135 let text = text.trim();
11136
11137 if text.is_empty() {
11138 return None;
11139 }
11140
11141 Some(text.to_string())
11142 }
11143
11144 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11145 self.transact(cx, |this, cx| {
11146 this.buffer
11147 .read(cx)
11148 .as_singleton()
11149 .expect("you can only call set_text on editors for singleton buffers")
11150 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11151 });
11152 }
11153
11154 pub fn display_text(&self, cx: &mut AppContext) -> String {
11155 self.display_map
11156 .update(cx, |map, cx| map.snapshot(cx))
11157 .text()
11158 }
11159
11160 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11161 let mut wrap_guides = smallvec::smallvec![];
11162
11163 if self.show_wrap_guides == Some(false) {
11164 return wrap_guides;
11165 }
11166
11167 let settings = self.buffer.read(cx).settings_at(0, cx);
11168 if settings.show_wrap_guides {
11169 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11170 wrap_guides.push((soft_wrap as usize, true));
11171 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11172 wrap_guides.push((soft_wrap as usize, true));
11173 }
11174 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11175 }
11176
11177 wrap_guides
11178 }
11179
11180 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11181 let settings = self.buffer.read(cx).settings_at(0, cx);
11182 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11183 match mode {
11184 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11185 SoftWrap::None
11186 }
11187 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11188 language_settings::SoftWrap::PreferredLineLength => {
11189 SoftWrap::Column(settings.preferred_line_length)
11190 }
11191 language_settings::SoftWrap::Bounded => {
11192 SoftWrap::Bounded(settings.preferred_line_length)
11193 }
11194 }
11195 }
11196
11197 pub fn set_soft_wrap_mode(
11198 &mut self,
11199 mode: language_settings::SoftWrap,
11200 cx: &mut ViewContext<Self>,
11201 ) {
11202 self.soft_wrap_mode_override = Some(mode);
11203 cx.notify();
11204 }
11205
11206 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11207 self.text_style_refinement = Some(style);
11208 }
11209
11210 /// called by the Element so we know what style we were most recently rendered with.
11211 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11212 let rem_size = cx.rem_size();
11213 self.display_map.update(cx, |map, cx| {
11214 map.set_font(
11215 style.text.font(),
11216 style.text.font_size.to_pixels(rem_size),
11217 cx,
11218 )
11219 });
11220 self.style = Some(style);
11221 }
11222
11223 pub fn style(&self) -> Option<&EditorStyle> {
11224 self.style.as_ref()
11225 }
11226
11227 // Called by the element. This method is not designed to be called outside of the editor
11228 // element's layout code because it does not notify when rewrapping is computed synchronously.
11229 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11230 self.display_map
11231 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11232 }
11233
11234 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11235 if self.soft_wrap_mode_override.is_some() {
11236 self.soft_wrap_mode_override.take();
11237 } else {
11238 let soft_wrap = match self.soft_wrap_mode(cx) {
11239 SoftWrap::GitDiff => return,
11240 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11241 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11242 language_settings::SoftWrap::None
11243 }
11244 };
11245 self.soft_wrap_mode_override = Some(soft_wrap);
11246 }
11247 cx.notify();
11248 }
11249
11250 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11251 let Some(workspace) = self.workspace() else {
11252 return;
11253 };
11254 let fs = workspace.read(cx).app_state().fs.clone();
11255 let current_show = TabBarSettings::get_global(cx).show;
11256 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11257 setting.show = Some(!current_show);
11258 });
11259 }
11260
11261 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11262 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11263 self.buffer
11264 .read(cx)
11265 .settings_at(0, cx)
11266 .indent_guides
11267 .enabled
11268 });
11269 self.show_indent_guides = Some(!currently_enabled);
11270 cx.notify();
11271 }
11272
11273 fn should_show_indent_guides(&self) -> Option<bool> {
11274 self.show_indent_guides
11275 }
11276
11277 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11278 let mut editor_settings = EditorSettings::get_global(cx).clone();
11279 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11280 EditorSettings::override_global(editor_settings, cx);
11281 }
11282
11283 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11284 self.use_relative_line_numbers
11285 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11286 }
11287
11288 pub fn toggle_relative_line_numbers(
11289 &mut self,
11290 _: &ToggleRelativeLineNumbers,
11291 cx: &mut ViewContext<Self>,
11292 ) {
11293 let is_relative = self.should_use_relative_line_numbers(cx);
11294 self.set_relative_line_number(Some(!is_relative), cx)
11295 }
11296
11297 pub fn set_relative_line_number(
11298 &mut self,
11299 is_relative: Option<bool>,
11300 cx: &mut ViewContext<Self>,
11301 ) {
11302 self.use_relative_line_numbers = is_relative;
11303 cx.notify();
11304 }
11305
11306 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11307 self.show_gutter = show_gutter;
11308 cx.notify();
11309 }
11310
11311 pub fn set_show_scrollbars(&mut self, show_scrollbars: bool, cx: &mut ViewContext<Self>) {
11312 self.show_scrollbars = show_scrollbars;
11313 cx.notify();
11314 }
11315
11316 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11317 self.show_line_numbers = Some(show_line_numbers);
11318 cx.notify();
11319 }
11320
11321 pub fn set_show_git_diff_gutter(
11322 &mut self,
11323 show_git_diff_gutter: bool,
11324 cx: &mut ViewContext<Self>,
11325 ) {
11326 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11327 cx.notify();
11328 }
11329
11330 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11331 self.show_code_actions = Some(show_code_actions);
11332 cx.notify();
11333 }
11334
11335 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11336 self.show_runnables = Some(show_runnables);
11337 cx.notify();
11338 }
11339
11340 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11341 if self.display_map.read(cx).masked != masked {
11342 self.display_map.update(cx, |map, _| map.masked = masked);
11343 }
11344 cx.notify()
11345 }
11346
11347 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11348 self.show_wrap_guides = Some(show_wrap_guides);
11349 cx.notify();
11350 }
11351
11352 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11353 self.show_indent_guides = Some(show_indent_guides);
11354 cx.notify();
11355 }
11356
11357 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11358 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11359 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11360 if let Some(dir) = file.abs_path(cx).parent() {
11361 return Some(dir.to_owned());
11362 }
11363 }
11364
11365 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11366 return Some(project_path.path.to_path_buf());
11367 }
11368 }
11369
11370 None
11371 }
11372
11373 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11374 self.active_excerpt(cx)?
11375 .1
11376 .read(cx)
11377 .file()
11378 .and_then(|f| f.as_local())
11379 }
11380
11381 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11382 if let Some(target) = self.target_file(cx) {
11383 cx.reveal_path(&target.abs_path(cx));
11384 }
11385 }
11386
11387 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11388 if let Some(file) = self.target_file(cx) {
11389 if let Some(path) = file.abs_path(cx).to_str() {
11390 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11391 }
11392 }
11393 }
11394
11395 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11396 if let Some(file) = self.target_file(cx) {
11397 if let Some(path) = file.path().to_str() {
11398 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11399 }
11400 }
11401 }
11402
11403 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11404 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11405
11406 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11407 self.start_git_blame(true, cx);
11408 }
11409
11410 cx.notify();
11411 }
11412
11413 pub fn toggle_git_blame_inline(
11414 &mut self,
11415 _: &ToggleGitBlameInline,
11416 cx: &mut ViewContext<Self>,
11417 ) {
11418 self.toggle_git_blame_inline_internal(true, cx);
11419 cx.notify();
11420 }
11421
11422 pub fn git_blame_inline_enabled(&self) -> bool {
11423 self.git_blame_inline_enabled
11424 }
11425
11426 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11427 self.show_selection_menu = self
11428 .show_selection_menu
11429 .map(|show_selections_menu| !show_selections_menu)
11430 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11431
11432 cx.notify();
11433 }
11434
11435 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11436 self.show_selection_menu
11437 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11438 }
11439
11440 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11441 if let Some(project) = self.project.as_ref() {
11442 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11443 return;
11444 };
11445
11446 if buffer.read(cx).file().is_none() {
11447 return;
11448 }
11449
11450 let focused = self.focus_handle(cx).contains_focused(cx);
11451
11452 let project = project.clone();
11453 let blame =
11454 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11455 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11456 self.blame = Some(blame);
11457 }
11458 }
11459
11460 fn toggle_git_blame_inline_internal(
11461 &mut self,
11462 user_triggered: bool,
11463 cx: &mut ViewContext<Self>,
11464 ) {
11465 if self.git_blame_inline_enabled {
11466 self.git_blame_inline_enabled = false;
11467 self.show_git_blame_inline = false;
11468 self.show_git_blame_inline_delay_task.take();
11469 } else {
11470 self.git_blame_inline_enabled = true;
11471 self.start_git_blame_inline(user_triggered, cx);
11472 }
11473
11474 cx.notify();
11475 }
11476
11477 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11478 self.start_git_blame(user_triggered, cx);
11479
11480 if ProjectSettings::get_global(cx)
11481 .git
11482 .inline_blame_delay()
11483 .is_some()
11484 {
11485 self.start_inline_blame_timer(cx);
11486 } else {
11487 self.show_git_blame_inline = true
11488 }
11489 }
11490
11491 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11492 self.blame.as_ref()
11493 }
11494
11495 pub fn show_git_blame_gutter(&self) -> bool {
11496 self.show_git_blame_gutter
11497 }
11498
11499 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11500 self.show_git_blame_gutter && self.has_blame_entries(cx)
11501 }
11502
11503 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11504 self.show_git_blame_inline
11505 && self.focus_handle.is_focused(cx)
11506 && !self.newest_selection_head_on_empty_line(cx)
11507 && self.has_blame_entries(cx)
11508 }
11509
11510 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11511 self.blame()
11512 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11513 }
11514
11515 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11516 let cursor_anchor = self.selections.newest_anchor().head();
11517
11518 let snapshot = self.buffer.read(cx).snapshot(cx);
11519 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11520
11521 snapshot.line_len(buffer_row) == 0
11522 }
11523
11524 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11525 let buffer_and_selection = maybe!({
11526 let selection = self.selections.newest::<Point>(cx);
11527 let selection_range = selection.range();
11528
11529 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11530 (buffer, selection_range.start.row..selection_range.end.row)
11531 } else {
11532 let multi_buffer = self.buffer().read(cx);
11533 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
11534 let buffer_ranges = multi_buffer_snapshot.range_to_buffer_ranges(selection_range);
11535
11536 let (excerpt, range) = if selection.reversed {
11537 buffer_ranges.first()
11538 } else {
11539 buffer_ranges.last()
11540 }?;
11541
11542 let snapshot = excerpt.buffer();
11543 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11544 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11545 (
11546 multi_buffer.buffer(excerpt.buffer_id()).unwrap().clone(),
11547 selection,
11548 )
11549 };
11550
11551 Some((buffer, selection))
11552 });
11553
11554 let Some((buffer, selection)) = buffer_and_selection else {
11555 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11556 };
11557
11558 let Some(project) = self.project.as_ref() else {
11559 return Task::ready(Err(anyhow!("editor does not have project")));
11560 };
11561
11562 project.update(cx, |project, cx| {
11563 project.get_permalink_to_line(&buffer, selection, cx)
11564 })
11565 }
11566
11567 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11568 let permalink_task = self.get_permalink_to_line(cx);
11569 let workspace = self.workspace();
11570
11571 cx.spawn(|_, mut cx| async move {
11572 match permalink_task.await {
11573 Ok(permalink) => {
11574 cx.update(|cx| {
11575 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11576 })
11577 .ok();
11578 }
11579 Err(err) => {
11580 let message = format!("Failed to copy permalink: {err}");
11581
11582 Err::<(), anyhow::Error>(err).log_err();
11583
11584 if let Some(workspace) = workspace {
11585 workspace
11586 .update(&mut cx, |workspace, cx| {
11587 struct CopyPermalinkToLine;
11588
11589 workspace.show_toast(
11590 Toast::new(
11591 NotificationId::unique::<CopyPermalinkToLine>(),
11592 message,
11593 ),
11594 cx,
11595 )
11596 })
11597 .ok();
11598 }
11599 }
11600 }
11601 })
11602 .detach();
11603 }
11604
11605 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11606 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11607 if let Some(file) = self.target_file(cx) {
11608 if let Some(path) = file.path().to_str() {
11609 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11610 }
11611 }
11612 }
11613
11614 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11615 let permalink_task = self.get_permalink_to_line(cx);
11616 let workspace = self.workspace();
11617
11618 cx.spawn(|_, mut cx| async move {
11619 match permalink_task.await {
11620 Ok(permalink) => {
11621 cx.update(|cx| {
11622 cx.open_url(permalink.as_ref());
11623 })
11624 .ok();
11625 }
11626 Err(err) => {
11627 let message = format!("Failed to open permalink: {err}");
11628
11629 Err::<(), anyhow::Error>(err).log_err();
11630
11631 if let Some(workspace) = workspace {
11632 workspace
11633 .update(&mut cx, |workspace, cx| {
11634 struct OpenPermalinkToLine;
11635
11636 workspace.show_toast(
11637 Toast::new(
11638 NotificationId::unique::<OpenPermalinkToLine>(),
11639 message,
11640 ),
11641 cx,
11642 )
11643 })
11644 .ok();
11645 }
11646 }
11647 }
11648 })
11649 .detach();
11650 }
11651
11652 pub fn insert_uuid_v4(&mut self, _: &InsertUuidV4, cx: &mut ViewContext<Self>) {
11653 self.insert_uuid(UuidVersion::V4, cx);
11654 }
11655
11656 pub fn insert_uuid_v7(&mut self, _: &InsertUuidV7, cx: &mut ViewContext<Self>) {
11657 self.insert_uuid(UuidVersion::V7, cx);
11658 }
11659
11660 fn insert_uuid(&mut self, version: UuidVersion, cx: &mut ViewContext<Self>) {
11661 self.transact(cx, |this, cx| {
11662 let edits = this
11663 .selections
11664 .all::<Point>(cx)
11665 .into_iter()
11666 .map(|selection| {
11667 let uuid = match version {
11668 UuidVersion::V4 => uuid::Uuid::new_v4(),
11669 UuidVersion::V7 => uuid::Uuid::now_v7(),
11670 };
11671
11672 (selection.range(), uuid.to_string())
11673 });
11674 this.edit(edits, cx);
11675 this.refresh_inline_completion(true, false, cx);
11676 });
11677 }
11678
11679 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11680 /// last highlight added will be used.
11681 ///
11682 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11683 pub fn highlight_rows<T: 'static>(
11684 &mut self,
11685 range: Range<Anchor>,
11686 color: Hsla,
11687 should_autoscroll: bool,
11688 cx: &mut ViewContext<Self>,
11689 ) {
11690 let snapshot = self.buffer().read(cx).snapshot(cx);
11691 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11692 let ix = row_highlights.binary_search_by(|highlight| {
11693 Ordering::Equal
11694 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11695 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11696 });
11697
11698 if let Err(mut ix) = ix {
11699 let index = post_inc(&mut self.highlight_order);
11700
11701 // If this range intersects with the preceding highlight, then merge it with
11702 // the preceding highlight. Otherwise insert a new highlight.
11703 let mut merged = false;
11704 if ix > 0 {
11705 let prev_highlight = &mut row_highlights[ix - 1];
11706 if prev_highlight
11707 .range
11708 .end
11709 .cmp(&range.start, &snapshot)
11710 .is_ge()
11711 {
11712 ix -= 1;
11713 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11714 prev_highlight.range.end = range.end;
11715 }
11716 merged = true;
11717 prev_highlight.index = index;
11718 prev_highlight.color = color;
11719 prev_highlight.should_autoscroll = should_autoscroll;
11720 }
11721 }
11722
11723 if !merged {
11724 row_highlights.insert(
11725 ix,
11726 RowHighlight {
11727 range: range.clone(),
11728 index,
11729 color,
11730 should_autoscroll,
11731 },
11732 );
11733 }
11734
11735 // If any of the following highlights intersect with this one, merge them.
11736 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11737 let highlight = &row_highlights[ix];
11738 if next_highlight
11739 .range
11740 .start
11741 .cmp(&highlight.range.end, &snapshot)
11742 .is_le()
11743 {
11744 if next_highlight
11745 .range
11746 .end
11747 .cmp(&highlight.range.end, &snapshot)
11748 .is_gt()
11749 {
11750 row_highlights[ix].range.end = next_highlight.range.end;
11751 }
11752 row_highlights.remove(ix + 1);
11753 } else {
11754 break;
11755 }
11756 }
11757 }
11758 }
11759
11760 /// Remove any highlighted row ranges of the given type that intersect the
11761 /// given ranges.
11762 pub fn remove_highlighted_rows<T: 'static>(
11763 &mut self,
11764 ranges_to_remove: Vec<Range<Anchor>>,
11765 cx: &mut ViewContext<Self>,
11766 ) {
11767 let snapshot = self.buffer().read(cx).snapshot(cx);
11768 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11769 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11770 row_highlights.retain(|highlight| {
11771 while let Some(range_to_remove) = ranges_to_remove.peek() {
11772 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11773 Ordering::Less | Ordering::Equal => {
11774 ranges_to_remove.next();
11775 }
11776 Ordering::Greater => {
11777 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11778 Ordering::Less | Ordering::Equal => {
11779 return false;
11780 }
11781 Ordering::Greater => break,
11782 }
11783 }
11784 }
11785 }
11786
11787 true
11788 })
11789 }
11790
11791 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11792 pub fn clear_row_highlights<T: 'static>(&mut self) {
11793 self.highlighted_rows.remove(&TypeId::of::<T>());
11794 }
11795
11796 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11797 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11798 self.highlighted_rows
11799 .get(&TypeId::of::<T>())
11800 .map_or(&[] as &[_], |vec| vec.as_slice())
11801 .iter()
11802 .map(|highlight| (highlight.range.clone(), highlight.color))
11803 }
11804
11805 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11806 /// Returns a map of display rows that are highlighted and their corresponding highlight color.
11807 /// Allows to ignore certain kinds of highlights.
11808 pub fn highlighted_display_rows(
11809 &mut self,
11810 cx: &mut WindowContext,
11811 ) -> BTreeMap<DisplayRow, Hsla> {
11812 let snapshot = self.snapshot(cx);
11813 let mut used_highlight_orders = HashMap::default();
11814 self.highlighted_rows
11815 .iter()
11816 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11817 .fold(
11818 BTreeMap::<DisplayRow, Hsla>::new(),
11819 |mut unique_rows, highlight| {
11820 let start = highlight.range.start.to_display_point(&snapshot);
11821 let end = highlight.range.end.to_display_point(&snapshot);
11822 let start_row = start.row().0;
11823 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11824 && end.column() == 0
11825 {
11826 end.row().0.saturating_sub(1)
11827 } else {
11828 end.row().0
11829 };
11830 for row in start_row..=end_row {
11831 let used_index =
11832 used_highlight_orders.entry(row).or_insert(highlight.index);
11833 if highlight.index >= *used_index {
11834 *used_index = highlight.index;
11835 unique_rows.insert(DisplayRow(row), highlight.color);
11836 }
11837 }
11838 unique_rows
11839 },
11840 )
11841 }
11842
11843 pub fn highlighted_display_row_for_autoscroll(
11844 &self,
11845 snapshot: &DisplaySnapshot,
11846 ) -> Option<DisplayRow> {
11847 self.highlighted_rows
11848 .values()
11849 .flat_map(|highlighted_rows| highlighted_rows.iter())
11850 .filter_map(|highlight| {
11851 if highlight.should_autoscroll {
11852 Some(highlight.range.start.to_display_point(snapshot).row())
11853 } else {
11854 None
11855 }
11856 })
11857 .min()
11858 }
11859
11860 pub fn set_search_within_ranges(
11861 &mut self,
11862 ranges: &[Range<Anchor>],
11863 cx: &mut ViewContext<Self>,
11864 ) {
11865 self.highlight_background::<SearchWithinRange>(
11866 ranges,
11867 |colors| colors.editor_document_highlight_read_background,
11868 cx,
11869 )
11870 }
11871
11872 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11873 self.breadcrumb_header = Some(new_header);
11874 }
11875
11876 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11877 self.clear_background_highlights::<SearchWithinRange>(cx);
11878 }
11879
11880 pub fn highlight_background<T: 'static>(
11881 &mut self,
11882 ranges: &[Range<Anchor>],
11883 color_fetcher: fn(&ThemeColors) -> Hsla,
11884 cx: &mut ViewContext<Self>,
11885 ) {
11886 self.background_highlights
11887 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11888 self.scrollbar_marker_state.dirty = true;
11889 cx.notify();
11890 }
11891
11892 pub fn clear_background_highlights<T: 'static>(
11893 &mut self,
11894 cx: &mut ViewContext<Self>,
11895 ) -> Option<BackgroundHighlight> {
11896 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11897 if !text_highlights.1.is_empty() {
11898 self.scrollbar_marker_state.dirty = true;
11899 cx.notify();
11900 }
11901 Some(text_highlights)
11902 }
11903
11904 pub fn highlight_gutter<T: 'static>(
11905 &mut self,
11906 ranges: &[Range<Anchor>],
11907 color_fetcher: fn(&AppContext) -> Hsla,
11908 cx: &mut ViewContext<Self>,
11909 ) {
11910 self.gutter_highlights
11911 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11912 cx.notify();
11913 }
11914
11915 pub fn clear_gutter_highlights<T: 'static>(
11916 &mut self,
11917 cx: &mut ViewContext<Self>,
11918 ) -> Option<GutterHighlight> {
11919 cx.notify();
11920 self.gutter_highlights.remove(&TypeId::of::<T>())
11921 }
11922
11923 #[cfg(feature = "test-support")]
11924 pub fn all_text_background_highlights(
11925 &mut self,
11926 cx: &mut ViewContext<Self>,
11927 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11928 let snapshot = self.snapshot(cx);
11929 let buffer = &snapshot.buffer_snapshot;
11930 let start = buffer.anchor_before(0);
11931 let end = buffer.anchor_after(buffer.len());
11932 let theme = cx.theme().colors();
11933 self.background_highlights_in_range(start..end, &snapshot, theme)
11934 }
11935
11936 #[cfg(feature = "test-support")]
11937 pub fn search_background_highlights(
11938 &mut self,
11939 cx: &mut ViewContext<Self>,
11940 ) -> Vec<Range<Point>> {
11941 let snapshot = self.buffer().read(cx).snapshot(cx);
11942
11943 let highlights = self
11944 .background_highlights
11945 .get(&TypeId::of::<items::BufferSearchHighlights>());
11946
11947 if let Some((_color, ranges)) = highlights {
11948 ranges
11949 .iter()
11950 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11951 .collect_vec()
11952 } else {
11953 vec![]
11954 }
11955 }
11956
11957 fn document_highlights_for_position<'a>(
11958 &'a self,
11959 position: Anchor,
11960 buffer: &'a MultiBufferSnapshot,
11961 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11962 let read_highlights = self
11963 .background_highlights
11964 .get(&TypeId::of::<DocumentHighlightRead>())
11965 .map(|h| &h.1);
11966 let write_highlights = self
11967 .background_highlights
11968 .get(&TypeId::of::<DocumentHighlightWrite>())
11969 .map(|h| &h.1);
11970 let left_position = position.bias_left(buffer);
11971 let right_position = position.bias_right(buffer);
11972 read_highlights
11973 .into_iter()
11974 .chain(write_highlights)
11975 .flat_map(move |ranges| {
11976 let start_ix = match ranges.binary_search_by(|probe| {
11977 let cmp = probe.end.cmp(&left_position, buffer);
11978 if cmp.is_ge() {
11979 Ordering::Greater
11980 } else {
11981 Ordering::Less
11982 }
11983 }) {
11984 Ok(i) | Err(i) => i,
11985 };
11986
11987 ranges[start_ix..]
11988 .iter()
11989 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11990 })
11991 }
11992
11993 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11994 self.background_highlights
11995 .get(&TypeId::of::<T>())
11996 .map_or(false, |(_, highlights)| !highlights.is_empty())
11997 }
11998
11999 pub fn background_highlights_in_range(
12000 &self,
12001 search_range: Range<Anchor>,
12002 display_snapshot: &DisplaySnapshot,
12003 theme: &ThemeColors,
12004 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12005 let mut results = Vec::new();
12006 for (color_fetcher, ranges) in self.background_highlights.values() {
12007 let color = color_fetcher(theme);
12008 let start_ix = match ranges.binary_search_by(|probe| {
12009 let cmp = probe
12010 .end
12011 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12012 if cmp.is_gt() {
12013 Ordering::Greater
12014 } else {
12015 Ordering::Less
12016 }
12017 }) {
12018 Ok(i) | Err(i) => i,
12019 };
12020 for range in &ranges[start_ix..] {
12021 if range
12022 .start
12023 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12024 .is_ge()
12025 {
12026 break;
12027 }
12028
12029 let start = range.start.to_display_point(display_snapshot);
12030 let end = range.end.to_display_point(display_snapshot);
12031 results.push((start..end, color))
12032 }
12033 }
12034 results
12035 }
12036
12037 pub fn background_highlight_row_ranges<T: 'static>(
12038 &self,
12039 search_range: Range<Anchor>,
12040 display_snapshot: &DisplaySnapshot,
12041 count: usize,
12042 ) -> Vec<RangeInclusive<DisplayPoint>> {
12043 let mut results = Vec::new();
12044 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12045 return vec![];
12046 };
12047
12048 let start_ix = match ranges.binary_search_by(|probe| {
12049 let cmp = probe
12050 .end
12051 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12052 if cmp.is_gt() {
12053 Ordering::Greater
12054 } else {
12055 Ordering::Less
12056 }
12057 }) {
12058 Ok(i) | Err(i) => i,
12059 };
12060 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12061 if let (Some(start_display), Some(end_display)) = (start, end) {
12062 results.push(
12063 start_display.to_display_point(display_snapshot)
12064 ..=end_display.to_display_point(display_snapshot),
12065 );
12066 }
12067 };
12068 let mut start_row: Option<Point> = None;
12069 let mut end_row: Option<Point> = None;
12070 if ranges.len() > count {
12071 return Vec::new();
12072 }
12073 for range in &ranges[start_ix..] {
12074 if range
12075 .start
12076 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12077 .is_ge()
12078 {
12079 break;
12080 }
12081 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12082 if let Some(current_row) = &end_row {
12083 if end.row == current_row.row {
12084 continue;
12085 }
12086 }
12087 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12088 if start_row.is_none() {
12089 assert_eq!(end_row, None);
12090 start_row = Some(start);
12091 end_row = Some(end);
12092 continue;
12093 }
12094 if let Some(current_end) = end_row.as_mut() {
12095 if start.row > current_end.row + 1 {
12096 push_region(start_row, end_row);
12097 start_row = Some(start);
12098 end_row = Some(end);
12099 } else {
12100 // Merge two hunks.
12101 *current_end = end;
12102 }
12103 } else {
12104 unreachable!();
12105 }
12106 }
12107 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12108 push_region(start_row, end_row);
12109 results
12110 }
12111
12112 pub fn gutter_highlights_in_range(
12113 &self,
12114 search_range: Range<Anchor>,
12115 display_snapshot: &DisplaySnapshot,
12116 cx: &AppContext,
12117 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12118 let mut results = Vec::new();
12119 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12120 let color = color_fetcher(cx);
12121 let start_ix = match ranges.binary_search_by(|probe| {
12122 let cmp = probe
12123 .end
12124 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12125 if cmp.is_gt() {
12126 Ordering::Greater
12127 } else {
12128 Ordering::Less
12129 }
12130 }) {
12131 Ok(i) | Err(i) => i,
12132 };
12133 for range in &ranges[start_ix..] {
12134 if range
12135 .start
12136 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12137 .is_ge()
12138 {
12139 break;
12140 }
12141
12142 let start = range.start.to_display_point(display_snapshot);
12143 let end = range.end.to_display_point(display_snapshot);
12144 results.push((start..end, color))
12145 }
12146 }
12147 results
12148 }
12149
12150 /// Get the text ranges corresponding to the redaction query
12151 pub fn redacted_ranges(
12152 &self,
12153 search_range: Range<Anchor>,
12154 display_snapshot: &DisplaySnapshot,
12155 cx: &WindowContext,
12156 ) -> Vec<Range<DisplayPoint>> {
12157 display_snapshot
12158 .buffer_snapshot
12159 .redacted_ranges(search_range, |file| {
12160 if let Some(file) = file {
12161 file.is_private()
12162 && EditorSettings::get(
12163 Some(SettingsLocation {
12164 worktree_id: file.worktree_id(cx),
12165 path: file.path().as_ref(),
12166 }),
12167 cx,
12168 )
12169 .redact_private_values
12170 } else {
12171 false
12172 }
12173 })
12174 .map(|range| {
12175 range.start.to_display_point(display_snapshot)
12176 ..range.end.to_display_point(display_snapshot)
12177 })
12178 .collect()
12179 }
12180
12181 pub fn highlight_text<T: 'static>(
12182 &mut self,
12183 ranges: Vec<Range<Anchor>>,
12184 style: HighlightStyle,
12185 cx: &mut ViewContext<Self>,
12186 ) {
12187 self.display_map.update(cx, |map, _| {
12188 map.highlight_text(TypeId::of::<T>(), ranges, style)
12189 });
12190 cx.notify();
12191 }
12192
12193 pub(crate) fn highlight_inlays<T: 'static>(
12194 &mut self,
12195 highlights: Vec<InlayHighlight>,
12196 style: HighlightStyle,
12197 cx: &mut ViewContext<Self>,
12198 ) {
12199 self.display_map.update(cx, |map, _| {
12200 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12201 });
12202 cx.notify();
12203 }
12204
12205 pub fn text_highlights<'a, T: 'static>(
12206 &'a self,
12207 cx: &'a AppContext,
12208 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12209 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12210 }
12211
12212 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12213 let cleared = self
12214 .display_map
12215 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12216 if cleared {
12217 cx.notify();
12218 }
12219 }
12220
12221 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12222 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12223 && self.focus_handle.is_focused(cx)
12224 }
12225
12226 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12227 self.show_cursor_when_unfocused = is_enabled;
12228 cx.notify();
12229 }
12230
12231 pub fn lsp_store(&self, cx: &AppContext) -> Option<Model<LspStore>> {
12232 self.project
12233 .as_ref()
12234 .map(|project| project.read(cx).lsp_store())
12235 }
12236
12237 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12238 cx.notify();
12239 }
12240
12241 fn on_buffer_event(
12242 &mut self,
12243 multibuffer: Model<MultiBuffer>,
12244 event: &multi_buffer::Event,
12245 cx: &mut ViewContext<Self>,
12246 ) {
12247 match event {
12248 multi_buffer::Event::Edited {
12249 singleton_buffer_edited,
12250 edited_buffer: buffer_edited,
12251 } => {
12252 self.scrollbar_marker_state.dirty = true;
12253 self.active_indent_guides_state.dirty = true;
12254 self.refresh_active_diagnostics(cx);
12255 self.refresh_code_actions(cx);
12256 if self.has_active_inline_completion() {
12257 self.update_visible_inline_completion(cx);
12258 }
12259 if let Some(buffer) = buffer_edited {
12260 let buffer_id = buffer.read(cx).remote_id();
12261 if !self.registered_buffers.contains_key(&buffer_id) {
12262 if let Some(lsp_store) = self.lsp_store(cx) {
12263 lsp_store.update(cx, |lsp_store, cx| {
12264 self.registered_buffers.insert(
12265 buffer_id,
12266 lsp_store.register_buffer_with_language_servers(&buffer, cx),
12267 );
12268 })
12269 }
12270 }
12271 }
12272 cx.emit(EditorEvent::BufferEdited);
12273 cx.emit(SearchEvent::MatchesInvalidated);
12274 if *singleton_buffer_edited {
12275 if let Some(project) = &self.project {
12276 let project = project.read(cx);
12277 #[allow(clippy::mutable_key_type)]
12278 let languages_affected = multibuffer
12279 .read(cx)
12280 .all_buffers()
12281 .into_iter()
12282 .filter_map(|buffer| {
12283 let buffer = buffer.read(cx);
12284 let language = buffer.language()?;
12285 if project.is_local()
12286 && project
12287 .language_servers_for_local_buffer(buffer, cx)
12288 .count()
12289 == 0
12290 {
12291 None
12292 } else {
12293 Some(language)
12294 }
12295 })
12296 .cloned()
12297 .collect::<HashSet<_>>();
12298 if !languages_affected.is_empty() {
12299 self.refresh_inlay_hints(
12300 InlayHintRefreshReason::BufferEdited(languages_affected),
12301 cx,
12302 );
12303 }
12304 }
12305 }
12306
12307 let Some(project) = &self.project else { return };
12308 let (telemetry, is_via_ssh) = {
12309 let project = project.read(cx);
12310 let telemetry = project.client().telemetry().clone();
12311 let is_via_ssh = project.is_via_ssh();
12312 (telemetry, is_via_ssh)
12313 };
12314 refresh_linked_ranges(self, cx);
12315 telemetry.log_edit_event("editor", is_via_ssh);
12316 }
12317 multi_buffer::Event::ExcerptsAdded {
12318 buffer,
12319 predecessor,
12320 excerpts,
12321 } => {
12322 self.tasks_update_task = Some(self.refresh_runnables(cx));
12323 let buffer_id = buffer.read(cx).remote_id();
12324 if !self.diff_map.diff_bases.contains_key(&buffer_id) {
12325 if let Some(project) = &self.project {
12326 get_unstaged_changes_for_buffers(project, [buffer.clone()], cx);
12327 }
12328 }
12329 cx.emit(EditorEvent::ExcerptsAdded {
12330 buffer: buffer.clone(),
12331 predecessor: *predecessor,
12332 excerpts: excerpts.clone(),
12333 });
12334 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12335 }
12336 multi_buffer::Event::ExcerptsRemoved { ids } => {
12337 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12338 let buffer = self.buffer.read(cx);
12339 self.registered_buffers
12340 .retain(|buffer_id, _| buffer.buffer(*buffer_id).is_some());
12341 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12342 }
12343 multi_buffer::Event::ExcerptsEdited { ids } => {
12344 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12345 }
12346 multi_buffer::Event::ExcerptsExpanded { ids } => {
12347 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12348 }
12349 multi_buffer::Event::Reparsed(buffer_id) => {
12350 self.tasks_update_task = Some(self.refresh_runnables(cx));
12351
12352 cx.emit(EditorEvent::Reparsed(*buffer_id));
12353 }
12354 multi_buffer::Event::LanguageChanged(buffer_id) => {
12355 linked_editing_ranges::refresh_linked_ranges(self, cx);
12356 cx.emit(EditorEvent::Reparsed(*buffer_id));
12357 cx.notify();
12358 }
12359 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12360 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12361 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12362 cx.emit(EditorEvent::TitleChanged)
12363 }
12364 // multi_buffer::Event::DiffBaseChanged => {
12365 // self.scrollbar_marker_state.dirty = true;
12366 // cx.emit(EditorEvent::DiffBaseChanged);
12367 // cx.notify();
12368 // }
12369 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12370 multi_buffer::Event::DiagnosticsUpdated => {
12371 self.refresh_active_diagnostics(cx);
12372 self.scrollbar_marker_state.dirty = true;
12373 cx.notify();
12374 }
12375 _ => {}
12376 };
12377 }
12378
12379 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12380 cx.notify();
12381 }
12382
12383 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12384 self.tasks_update_task = Some(self.refresh_runnables(cx));
12385 self.refresh_inline_completion(true, false, cx);
12386 self.refresh_inlay_hints(
12387 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12388 self.selections.newest_anchor().head(),
12389 &self.buffer.read(cx).snapshot(cx),
12390 cx,
12391 )),
12392 cx,
12393 );
12394
12395 let old_cursor_shape = self.cursor_shape;
12396
12397 {
12398 let editor_settings = EditorSettings::get_global(cx);
12399 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12400 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12401 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12402 }
12403
12404 if old_cursor_shape != self.cursor_shape {
12405 cx.emit(EditorEvent::CursorShapeChanged);
12406 }
12407
12408 let project_settings = ProjectSettings::get_global(cx);
12409 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12410
12411 if self.mode == EditorMode::Full {
12412 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12413 if self.git_blame_inline_enabled != inline_blame_enabled {
12414 self.toggle_git_blame_inline_internal(false, cx);
12415 }
12416 }
12417
12418 cx.notify();
12419 }
12420
12421 pub fn set_searchable(&mut self, searchable: bool) {
12422 self.searchable = searchable;
12423 }
12424
12425 pub fn searchable(&self) -> bool {
12426 self.searchable
12427 }
12428
12429 fn open_proposed_changes_editor(
12430 &mut self,
12431 _: &OpenProposedChangesEditor,
12432 cx: &mut ViewContext<Self>,
12433 ) {
12434 let Some(workspace) = self.workspace() else {
12435 cx.propagate();
12436 return;
12437 };
12438
12439 let selections = self.selections.all::<usize>(cx);
12440 let multi_buffer = self.buffer.read(cx);
12441 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
12442 let mut new_selections_by_buffer = HashMap::default();
12443 for selection in selections {
12444 for (excerpt, range) in
12445 multi_buffer_snapshot.range_to_buffer_ranges(selection.start..selection.end)
12446 {
12447 let mut range = range.to_point(excerpt.buffer());
12448 range.start.column = 0;
12449 range.end.column = excerpt.buffer().line_len(range.end.row);
12450 new_selections_by_buffer
12451 .entry(multi_buffer.buffer(excerpt.buffer_id()).unwrap())
12452 .or_insert(Vec::new())
12453 .push(range)
12454 }
12455 }
12456
12457 let proposed_changes_buffers = new_selections_by_buffer
12458 .into_iter()
12459 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12460 .collect::<Vec<_>>();
12461 let proposed_changes_editor = cx.new_view(|cx| {
12462 ProposedChangesEditor::new(
12463 "Proposed changes",
12464 proposed_changes_buffers,
12465 self.project.clone(),
12466 cx,
12467 )
12468 });
12469
12470 cx.window_context().defer(move |cx| {
12471 workspace.update(cx, |workspace, cx| {
12472 workspace.active_pane().update(cx, |pane, cx| {
12473 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12474 });
12475 });
12476 });
12477 }
12478
12479 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12480 self.open_excerpts_common(None, true, cx)
12481 }
12482
12483 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12484 self.open_excerpts_common(None, false, cx)
12485 }
12486
12487 fn open_excerpts_common(
12488 &mut self,
12489 jump_data: Option<JumpData>,
12490 split: bool,
12491 cx: &mut ViewContext<Self>,
12492 ) {
12493 let Some(workspace) = self.workspace() else {
12494 cx.propagate();
12495 return;
12496 };
12497
12498 if self.buffer.read(cx).is_singleton() {
12499 cx.propagate();
12500 return;
12501 }
12502
12503 let mut new_selections_by_buffer = HashMap::default();
12504 match &jump_data {
12505 Some(JumpData::MultiBufferPoint {
12506 excerpt_id,
12507 position,
12508 anchor,
12509 line_offset_from_top,
12510 }) => {
12511 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12512 if let Some(buffer) = multi_buffer_snapshot
12513 .buffer_id_for_excerpt(*excerpt_id)
12514 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12515 {
12516 let buffer_snapshot = buffer.read(cx).snapshot();
12517 let jump_to_point = if buffer_snapshot.can_resolve(anchor) {
12518 language::ToPoint::to_point(anchor, &buffer_snapshot)
12519 } else {
12520 buffer_snapshot.clip_point(*position, Bias::Left)
12521 };
12522 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12523 new_selections_by_buffer.insert(
12524 buffer,
12525 (
12526 vec![jump_to_offset..jump_to_offset],
12527 Some(*line_offset_from_top),
12528 ),
12529 );
12530 }
12531 }
12532 Some(JumpData::MultiBufferRow {
12533 row,
12534 line_offset_from_top,
12535 }) => {
12536 let point = MultiBufferPoint::new(row.0, 0);
12537 if let Some((buffer, buffer_point, _)) =
12538 self.buffer.read(cx).point_to_buffer_point(point, cx)
12539 {
12540 let buffer_offset = buffer.read(cx).point_to_offset(buffer_point);
12541 new_selections_by_buffer
12542 .entry(buffer)
12543 .or_insert((Vec::new(), Some(*line_offset_from_top)))
12544 .0
12545 .push(buffer_offset..buffer_offset)
12546 }
12547 }
12548 None => {
12549 let selections = self.selections.all::<usize>(cx);
12550 let multi_buffer = self.buffer.read(cx);
12551 for selection in selections {
12552 for (excerpt, mut range) in multi_buffer
12553 .snapshot(cx)
12554 .range_to_buffer_ranges(selection.range())
12555 {
12556 // When editing branch buffers, jump to the corresponding location
12557 // in their base buffer.
12558 let mut buffer_handle = multi_buffer.buffer(excerpt.buffer_id()).unwrap();
12559 let buffer = buffer_handle.read(cx);
12560 if let Some(base_buffer) = buffer.base_buffer() {
12561 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12562 buffer_handle = base_buffer;
12563 }
12564
12565 if selection.reversed {
12566 mem::swap(&mut range.start, &mut range.end);
12567 }
12568 new_selections_by_buffer
12569 .entry(buffer_handle)
12570 .or_insert((Vec::new(), None))
12571 .0
12572 .push(range)
12573 }
12574 }
12575 }
12576 }
12577
12578 if new_selections_by_buffer.is_empty() {
12579 return;
12580 }
12581
12582 // We defer the pane interaction because we ourselves are a workspace item
12583 // and activating a new item causes the pane to call a method on us reentrantly,
12584 // which panics if we're on the stack.
12585 cx.window_context().defer(move |cx| {
12586 workspace.update(cx, |workspace, cx| {
12587 let pane = if split {
12588 workspace.adjacent_pane(cx)
12589 } else {
12590 workspace.active_pane().clone()
12591 };
12592
12593 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12594 let editor = buffer
12595 .read(cx)
12596 .file()
12597 .is_none()
12598 .then(|| {
12599 // Handle file-less buffers separately: those are not really the project items, so won't have a project path or entity id,
12600 // so `workspace.open_project_item` will never find them, always opening a new editor.
12601 // Instead, we try to activate the existing editor in the pane first.
12602 let (editor, pane_item_index) =
12603 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12604 let editor = item.downcast::<Editor>()?;
12605 let singleton_buffer =
12606 editor.read(cx).buffer().read(cx).as_singleton()?;
12607 if singleton_buffer == buffer {
12608 Some((editor, i))
12609 } else {
12610 None
12611 }
12612 })?;
12613 pane.update(cx, |pane, cx| {
12614 pane.activate_item(pane_item_index, true, true, cx)
12615 });
12616 Some(editor)
12617 })
12618 .flatten()
12619 .unwrap_or_else(|| {
12620 workspace.open_project_item::<Self>(
12621 pane.clone(),
12622 buffer,
12623 true,
12624 true,
12625 cx,
12626 )
12627 });
12628
12629 editor.update(cx, |editor, cx| {
12630 let autoscroll = match scroll_offset {
12631 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12632 None => Autoscroll::newest(),
12633 };
12634 let nav_history = editor.nav_history.take();
12635 editor.change_selections(Some(autoscroll), cx, |s| {
12636 s.select_ranges(ranges);
12637 });
12638 editor.nav_history = nav_history;
12639 });
12640 }
12641 })
12642 });
12643 }
12644
12645 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12646 let snapshot = self.buffer.read(cx).read(cx);
12647 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12648 Some(
12649 ranges
12650 .iter()
12651 .map(move |range| {
12652 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12653 })
12654 .collect(),
12655 )
12656 }
12657
12658 fn selection_replacement_ranges(
12659 &self,
12660 range: Range<OffsetUtf16>,
12661 cx: &mut AppContext,
12662 ) -> Vec<Range<OffsetUtf16>> {
12663 let selections = self.selections.all::<OffsetUtf16>(cx);
12664 let newest_selection = selections
12665 .iter()
12666 .max_by_key(|selection| selection.id)
12667 .unwrap();
12668 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12669 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12670 let snapshot = self.buffer.read(cx).read(cx);
12671 selections
12672 .into_iter()
12673 .map(|mut selection| {
12674 selection.start.0 =
12675 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12676 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12677 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12678 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12679 })
12680 .collect()
12681 }
12682
12683 fn report_editor_event(
12684 &self,
12685 event_type: &'static str,
12686 file_extension: Option<String>,
12687 cx: &AppContext,
12688 ) {
12689 if cfg!(any(test, feature = "test-support")) {
12690 return;
12691 }
12692
12693 let Some(project) = &self.project else { return };
12694
12695 // If None, we are in a file without an extension
12696 let file = self
12697 .buffer
12698 .read(cx)
12699 .as_singleton()
12700 .and_then(|b| b.read(cx).file());
12701 let file_extension = file_extension.or(file
12702 .as_ref()
12703 .and_then(|file| Path::new(file.file_name(cx)).extension())
12704 .and_then(|e| e.to_str())
12705 .map(|a| a.to_string()));
12706
12707 let vim_mode = cx
12708 .global::<SettingsStore>()
12709 .raw_user_settings()
12710 .get("vim_mode")
12711 == Some(&serde_json::Value::Bool(true));
12712
12713 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12714 == language::language_settings::InlineCompletionProvider::Copilot;
12715 let copilot_enabled_for_language = self
12716 .buffer
12717 .read(cx)
12718 .settings_at(0, cx)
12719 .show_inline_completions;
12720
12721 let project = project.read(cx);
12722 telemetry::event!(
12723 event_type,
12724 file_extension,
12725 vim_mode,
12726 copilot_enabled,
12727 copilot_enabled_for_language,
12728 is_via_ssh = project.is_via_ssh(),
12729 );
12730 }
12731
12732 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12733 /// with each line being an array of {text, highlight} objects.
12734 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12735 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12736 return;
12737 };
12738
12739 #[derive(Serialize)]
12740 struct Chunk<'a> {
12741 text: String,
12742 highlight: Option<&'a str>,
12743 }
12744
12745 let snapshot = buffer.read(cx).snapshot();
12746 let range = self
12747 .selected_text_range(false, cx)
12748 .and_then(|selection| {
12749 if selection.range.is_empty() {
12750 None
12751 } else {
12752 Some(selection.range)
12753 }
12754 })
12755 .unwrap_or_else(|| 0..snapshot.len());
12756
12757 let chunks = snapshot.chunks(range, true);
12758 let mut lines = Vec::new();
12759 let mut line: VecDeque<Chunk> = VecDeque::new();
12760
12761 let Some(style) = self.style.as_ref() else {
12762 return;
12763 };
12764
12765 for chunk in chunks {
12766 let highlight = chunk
12767 .syntax_highlight_id
12768 .and_then(|id| id.name(&style.syntax));
12769 let mut chunk_lines = chunk.text.split('\n').peekable();
12770 while let Some(text) = chunk_lines.next() {
12771 let mut merged_with_last_token = false;
12772 if let Some(last_token) = line.back_mut() {
12773 if last_token.highlight == highlight {
12774 last_token.text.push_str(text);
12775 merged_with_last_token = true;
12776 }
12777 }
12778
12779 if !merged_with_last_token {
12780 line.push_back(Chunk {
12781 text: text.into(),
12782 highlight,
12783 });
12784 }
12785
12786 if chunk_lines.peek().is_some() {
12787 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12788 line.pop_front();
12789 }
12790 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12791 line.pop_back();
12792 }
12793
12794 lines.push(mem::take(&mut line));
12795 }
12796 }
12797 }
12798
12799 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12800 return;
12801 };
12802 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12803 }
12804
12805 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
12806 self.request_autoscroll(Autoscroll::newest(), cx);
12807 let position = self.selections.newest_display(cx).start;
12808 mouse_context_menu::deploy_context_menu(self, None, position, cx);
12809 }
12810
12811 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12812 &self.inlay_hint_cache
12813 }
12814
12815 pub fn replay_insert_event(
12816 &mut self,
12817 text: &str,
12818 relative_utf16_range: Option<Range<isize>>,
12819 cx: &mut ViewContext<Self>,
12820 ) {
12821 if !self.input_enabled {
12822 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12823 return;
12824 }
12825 if let Some(relative_utf16_range) = relative_utf16_range {
12826 let selections = self.selections.all::<OffsetUtf16>(cx);
12827 self.change_selections(None, cx, |s| {
12828 let new_ranges = selections.into_iter().map(|range| {
12829 let start = OffsetUtf16(
12830 range
12831 .head()
12832 .0
12833 .saturating_add_signed(relative_utf16_range.start),
12834 );
12835 let end = OffsetUtf16(
12836 range
12837 .head()
12838 .0
12839 .saturating_add_signed(relative_utf16_range.end),
12840 );
12841 start..end
12842 });
12843 s.select_ranges(new_ranges);
12844 });
12845 }
12846
12847 self.handle_input(text, cx);
12848 }
12849
12850 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12851 let Some(provider) = self.semantics_provider.as_ref() else {
12852 return false;
12853 };
12854
12855 let mut supports = false;
12856 self.buffer().read(cx).for_each_buffer(|buffer| {
12857 supports |= provider.supports_inlay_hints(buffer, cx);
12858 });
12859 supports
12860 }
12861
12862 pub fn focus(&self, cx: &mut WindowContext) {
12863 cx.focus(&self.focus_handle)
12864 }
12865
12866 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12867 self.focus_handle.is_focused(cx)
12868 }
12869
12870 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12871 cx.emit(EditorEvent::Focused);
12872
12873 if let Some(descendant) = self
12874 .last_focused_descendant
12875 .take()
12876 .and_then(|descendant| descendant.upgrade())
12877 {
12878 cx.focus(&descendant);
12879 } else {
12880 if let Some(blame) = self.blame.as_ref() {
12881 blame.update(cx, GitBlame::focus)
12882 }
12883
12884 self.blink_manager.update(cx, BlinkManager::enable);
12885 self.show_cursor_names(cx);
12886 self.buffer.update(cx, |buffer, cx| {
12887 buffer.finalize_last_transaction(cx);
12888 if self.leader_peer_id.is_none() {
12889 buffer.set_active_selections(
12890 &self.selections.disjoint_anchors(),
12891 self.selections.line_mode,
12892 self.cursor_shape,
12893 cx,
12894 );
12895 }
12896 });
12897 }
12898 }
12899
12900 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12901 cx.emit(EditorEvent::FocusedIn)
12902 }
12903
12904 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12905 if event.blurred != self.focus_handle {
12906 self.last_focused_descendant = Some(event.blurred);
12907 }
12908 }
12909
12910 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12911 self.blink_manager.update(cx, BlinkManager::disable);
12912 self.buffer
12913 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12914
12915 if let Some(blame) = self.blame.as_ref() {
12916 blame.update(cx, GitBlame::blur)
12917 }
12918 if !self.hover_state.focused(cx) {
12919 hide_hover(self, cx);
12920 }
12921
12922 self.hide_context_menu(cx);
12923 cx.emit(EditorEvent::Blurred);
12924 cx.notify();
12925 }
12926
12927 pub fn register_action<A: Action>(
12928 &mut self,
12929 listener: impl Fn(&A, &mut WindowContext) + 'static,
12930 ) -> Subscription {
12931 let id = self.next_editor_action_id.post_inc();
12932 let listener = Arc::new(listener);
12933 self.editor_actions.borrow_mut().insert(
12934 id,
12935 Box::new(move |cx| {
12936 let cx = cx.window_context();
12937 let listener = listener.clone();
12938 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12939 let action = action.downcast_ref().unwrap();
12940 if phase == DispatchPhase::Bubble {
12941 listener(action, cx)
12942 }
12943 })
12944 }),
12945 );
12946
12947 let editor_actions = self.editor_actions.clone();
12948 Subscription::new(move || {
12949 editor_actions.borrow_mut().remove(&id);
12950 })
12951 }
12952
12953 pub fn file_header_size(&self) -> u32 {
12954 FILE_HEADER_HEIGHT
12955 }
12956
12957 pub fn revert(
12958 &mut self,
12959 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12960 cx: &mut ViewContext<Self>,
12961 ) {
12962 self.buffer().update(cx, |multi_buffer, cx| {
12963 for (buffer_id, changes) in revert_changes {
12964 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12965 buffer.update(cx, |buffer, cx| {
12966 buffer.edit(
12967 changes.into_iter().map(|(range, text)| {
12968 (range, text.to_string().map(Arc::<str>::from))
12969 }),
12970 None,
12971 cx,
12972 );
12973 });
12974 }
12975 }
12976 });
12977 self.change_selections(None, cx, |selections| selections.refresh());
12978 }
12979
12980 pub fn to_pixel_point(
12981 &mut self,
12982 source: multi_buffer::Anchor,
12983 editor_snapshot: &EditorSnapshot,
12984 cx: &mut ViewContext<Self>,
12985 ) -> Option<gpui::Point<Pixels>> {
12986 let source_point = source.to_display_point(editor_snapshot);
12987 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12988 }
12989
12990 pub fn display_to_pixel_point(
12991 &self,
12992 source: DisplayPoint,
12993 editor_snapshot: &EditorSnapshot,
12994 cx: &WindowContext,
12995 ) -> Option<gpui::Point<Pixels>> {
12996 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12997 let text_layout_details = self.text_layout_details(cx);
12998 let scroll_top = text_layout_details
12999 .scroll_anchor
13000 .scroll_position(editor_snapshot)
13001 .y;
13002
13003 if source.row().as_f32() < scroll_top.floor() {
13004 return None;
13005 }
13006 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13007 let source_y = line_height * (source.row().as_f32() - scroll_top);
13008 Some(gpui::Point::new(source_x, source_y))
13009 }
13010
13011 pub fn has_active_completions_menu(&self) -> bool {
13012 self.context_menu.borrow().as_ref().map_or(false, |menu| {
13013 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
13014 })
13015 }
13016
13017 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13018 self.addons
13019 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13020 }
13021
13022 pub fn unregister_addon<T: Addon>(&mut self) {
13023 self.addons.remove(&std::any::TypeId::of::<T>());
13024 }
13025
13026 pub fn addon<T: Addon>(&self) -> Option<&T> {
13027 let type_id = std::any::TypeId::of::<T>();
13028 self.addons
13029 .get(&type_id)
13030 .and_then(|item| item.to_any().downcast_ref::<T>())
13031 }
13032
13033 pub fn add_change_set(
13034 &mut self,
13035 change_set: Model<BufferChangeSet>,
13036 cx: &mut ViewContext<Self>,
13037 ) {
13038 self.diff_map.add_change_set(change_set, cx);
13039 }
13040
13041 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
13042 let text_layout_details = self.text_layout_details(cx);
13043 let style = &text_layout_details.editor_style;
13044 let font_id = cx.text_system().resolve_font(&style.text.font());
13045 let font_size = style.text.font_size.to_pixels(cx.rem_size());
13046 let line_height = style.text.line_height_in_pixels(cx.rem_size());
13047
13048 let em_width = cx
13049 .text_system()
13050 .typographic_bounds(font_id, font_size, 'm')
13051 .unwrap()
13052 .size
13053 .width;
13054
13055 gpui::Point::new(em_width, line_height)
13056 }
13057}
13058
13059fn get_unstaged_changes_for_buffers(
13060 project: &Model<Project>,
13061 buffers: impl IntoIterator<Item = Model<Buffer>>,
13062 cx: &mut ViewContext<Editor>,
13063) {
13064 let mut tasks = Vec::new();
13065 project.update(cx, |project, cx| {
13066 for buffer in buffers {
13067 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
13068 }
13069 });
13070 cx.spawn(|this, mut cx| async move {
13071 let change_sets = futures::future::join_all(tasks).await;
13072 this.update(&mut cx, |this, cx| {
13073 for change_set in change_sets {
13074 if let Some(change_set) = change_set.log_err() {
13075 this.diff_map.add_change_set(change_set, cx);
13076 }
13077 }
13078 })
13079 .ok();
13080 })
13081 .detach();
13082}
13083
13084fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13085 let tab_size = tab_size.get() as usize;
13086 let mut width = offset;
13087
13088 for ch in text.chars() {
13089 width += if ch == '\t' {
13090 tab_size - (width % tab_size)
13091 } else {
13092 1
13093 };
13094 }
13095
13096 width - offset
13097}
13098
13099#[cfg(test)]
13100mod tests {
13101 use super::*;
13102
13103 #[test]
13104 fn test_string_size_with_expanded_tabs() {
13105 let nz = |val| NonZeroU32::new(val).unwrap();
13106 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13107 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13108 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13109 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13110 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13111 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13112 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13113 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13114 }
13115}
13116
13117/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13118struct WordBreakingTokenizer<'a> {
13119 input: &'a str,
13120}
13121
13122impl<'a> WordBreakingTokenizer<'a> {
13123 fn new(input: &'a str) -> Self {
13124 Self { input }
13125 }
13126}
13127
13128fn is_char_ideographic(ch: char) -> bool {
13129 use unicode_script::Script::*;
13130 use unicode_script::UnicodeScript;
13131 matches!(ch.script(), Han | Tangut | Yi)
13132}
13133
13134fn is_grapheme_ideographic(text: &str) -> bool {
13135 text.chars().any(is_char_ideographic)
13136}
13137
13138fn is_grapheme_whitespace(text: &str) -> bool {
13139 text.chars().any(|x| x.is_whitespace())
13140}
13141
13142fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13143 text.chars().next().map_or(false, |ch| {
13144 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13145 })
13146}
13147
13148#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13149struct WordBreakToken<'a> {
13150 token: &'a str,
13151 grapheme_len: usize,
13152 is_whitespace: bool,
13153}
13154
13155impl<'a> Iterator for WordBreakingTokenizer<'a> {
13156 /// Yields a span, the count of graphemes in the token, and whether it was
13157 /// whitespace. Note that it also breaks at word boundaries.
13158 type Item = WordBreakToken<'a>;
13159
13160 fn next(&mut self) -> Option<Self::Item> {
13161 use unicode_segmentation::UnicodeSegmentation;
13162 if self.input.is_empty() {
13163 return None;
13164 }
13165
13166 let mut iter = self.input.graphemes(true).peekable();
13167 let mut offset = 0;
13168 let mut graphemes = 0;
13169 if let Some(first_grapheme) = iter.next() {
13170 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13171 offset += first_grapheme.len();
13172 graphemes += 1;
13173 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13174 if let Some(grapheme) = iter.peek().copied() {
13175 if should_stay_with_preceding_ideograph(grapheme) {
13176 offset += grapheme.len();
13177 graphemes += 1;
13178 }
13179 }
13180 } else {
13181 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13182 let mut next_word_bound = words.peek().copied();
13183 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13184 next_word_bound = words.next();
13185 }
13186 while let Some(grapheme) = iter.peek().copied() {
13187 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13188 break;
13189 };
13190 if is_grapheme_whitespace(grapheme) != is_whitespace {
13191 break;
13192 };
13193 offset += grapheme.len();
13194 graphemes += 1;
13195 iter.next();
13196 }
13197 }
13198 let token = &self.input[..offset];
13199 self.input = &self.input[offset..];
13200 if is_whitespace {
13201 Some(WordBreakToken {
13202 token: " ",
13203 grapheme_len: 1,
13204 is_whitespace: true,
13205 })
13206 } else {
13207 Some(WordBreakToken {
13208 token,
13209 grapheme_len: graphemes,
13210 is_whitespace: false,
13211 })
13212 }
13213 } else {
13214 None
13215 }
13216 }
13217}
13218
13219#[test]
13220fn test_word_breaking_tokenizer() {
13221 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13222 ("", &[]),
13223 (" ", &[(" ", 1, true)]),
13224 ("Ʒ", &[("Ʒ", 1, false)]),
13225 ("Ǽ", &[("Ǽ", 1, false)]),
13226 ("⋑", &[("⋑", 1, false)]),
13227 ("⋑⋑", &[("⋑⋑", 2, false)]),
13228 (
13229 "原理，进而",
13230 &[
13231 ("原", 1, false),
13232 ("理，", 2, false),
13233 ("进", 1, false),
13234 ("而", 1, false),
13235 ],
13236 ),
13237 (
13238 "hello world",
13239 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13240 ),
13241 (
13242 "hello, world",
13243 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13244 ),
13245 (
13246 " hello world",
13247 &[
13248 (" ", 1, true),
13249 ("hello", 5, false),
13250 (" ", 1, true),
13251 ("world", 5, false),
13252 ],
13253 ),
13254 (
13255 "这是什么 \n 钢笔",
13256 &[
13257 ("这", 1, false),
13258 ("是", 1, false),
13259 ("什", 1, false),
13260 ("么", 1, false),
13261 (" ", 1, true),
13262 ("钢", 1, false),
13263 ("笔", 1, false),
13264 ],
13265 ),
13266 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13267 ];
13268
13269 for (input, result) in tests {
13270 assert_eq!(
13271 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13272 result
13273 .iter()
13274 .copied()
13275 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13276 token,
13277 grapheme_len,
13278 is_whitespace,
13279 })
13280 .collect::<Vec<_>>()
13281 );
13282 }
13283}
13284
13285fn wrap_with_prefix(
13286 line_prefix: String,
13287 unwrapped_text: String,
13288 wrap_column: usize,
13289 tab_size: NonZeroU32,
13290) -> String {
13291 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13292 let mut wrapped_text = String::new();
13293 let mut current_line = line_prefix.clone();
13294
13295 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13296 let mut current_line_len = line_prefix_len;
13297 for WordBreakToken {
13298 token,
13299 grapheme_len,
13300 is_whitespace,
13301 } in tokenizer
13302 {
13303 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13304 wrapped_text.push_str(current_line.trim_end());
13305 wrapped_text.push('\n');
13306 current_line.truncate(line_prefix.len());
13307 current_line_len = line_prefix_len;
13308 if !is_whitespace {
13309 current_line.push_str(token);
13310 current_line_len += grapheme_len;
13311 }
13312 } else if !is_whitespace {
13313 current_line.push_str(token);
13314 current_line_len += grapheme_len;
13315 } else if current_line_len != line_prefix_len {
13316 current_line.push(' ');
13317 current_line_len += 1;
13318 }
13319 }
13320
13321 if !current_line.is_empty() {
13322 wrapped_text.push_str(¤t_line);
13323 }
13324 wrapped_text
13325}
13326
13327#[test]
13328fn test_wrap_with_prefix() {
13329 assert_eq!(
13330 wrap_with_prefix(
13331 "# ".to_string(),
13332 "abcdefg".to_string(),
13333 4,
13334 NonZeroU32::new(4).unwrap()
13335 ),
13336 "# abcdefg"
13337 );
13338 assert_eq!(
13339 wrap_with_prefix(
13340 "".to_string(),
13341 "\thello world".to_string(),
13342 8,
13343 NonZeroU32::new(4).unwrap()
13344 ),
13345 "hello\nworld"
13346 );
13347 assert_eq!(
13348 wrap_with_prefix(
13349 "// ".to_string(),
13350 "xx \nyy zz aa bb cc".to_string(),
13351 12,
13352 NonZeroU32::new(4).unwrap()
13353 ),
13354 "// xx yy zz\n// aa bb cc"
13355 );
13356 assert_eq!(
13357 wrap_with_prefix(
13358 String::new(),
13359 "这是什么 \n 钢笔".to_string(),
13360 3,
13361 NonZeroU32::new(4).unwrap()
13362 ),
13363 "这是什\n么 钢\n笔"
13364 );
13365}
13366
13367fn hunks_for_selections(
13368 snapshot: &EditorSnapshot,
13369 selections: &[Selection<Point>],
13370) -> Vec<MultiBufferDiffHunk> {
13371 hunks_for_ranges(
13372 selections.iter().map(|selection| selection.range()),
13373 snapshot,
13374 )
13375}
13376
13377pub fn hunks_for_ranges(
13378 ranges: impl Iterator<Item = Range<Point>>,
13379 snapshot: &EditorSnapshot,
13380) -> Vec<MultiBufferDiffHunk> {
13381 let mut hunks = Vec::new();
13382 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13383 HashMap::default();
13384 for query_range in ranges {
13385 let query_rows =
13386 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
13387 for hunk in snapshot.diff_map.diff_hunks_in_range(
13388 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
13389 &snapshot.buffer_snapshot,
13390 ) {
13391 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13392 // when the caret is just above or just below the deleted hunk.
13393 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13394 let related_to_selection = if allow_adjacent {
13395 hunk.row_range.overlaps(&query_rows)
13396 || hunk.row_range.start == query_rows.end
13397 || hunk.row_range.end == query_rows.start
13398 } else {
13399 hunk.row_range.overlaps(&query_rows)
13400 };
13401 if related_to_selection {
13402 if !processed_buffer_rows
13403 .entry(hunk.buffer_id)
13404 .or_default()
13405 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13406 {
13407 continue;
13408 }
13409 hunks.push(hunk);
13410 }
13411 }
13412 }
13413
13414 hunks
13415}
13416
13417pub trait CollaborationHub {
13418 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13419 fn user_participant_indices<'a>(
13420 &self,
13421 cx: &'a AppContext,
13422 ) -> &'a HashMap<u64, ParticipantIndex>;
13423 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13424}
13425
13426impl CollaborationHub for Model<Project> {
13427 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13428 self.read(cx).collaborators()
13429 }
13430
13431 fn user_participant_indices<'a>(
13432 &self,
13433 cx: &'a AppContext,
13434 ) -> &'a HashMap<u64, ParticipantIndex> {
13435 self.read(cx).user_store().read(cx).participant_indices()
13436 }
13437
13438 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13439 let this = self.read(cx);
13440 let user_ids = this.collaborators().values().map(|c| c.user_id);
13441 this.user_store().read_with(cx, |user_store, cx| {
13442 user_store.participant_names(user_ids, cx)
13443 })
13444 }
13445}
13446
13447pub trait SemanticsProvider {
13448 fn hover(
13449 &self,
13450 buffer: &Model<Buffer>,
13451 position: text::Anchor,
13452 cx: &mut AppContext,
13453 ) -> Option<Task<Vec<project::Hover>>>;
13454
13455 fn inlay_hints(
13456 &self,
13457 buffer_handle: Model<Buffer>,
13458 range: Range<text::Anchor>,
13459 cx: &mut AppContext,
13460 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13461
13462 fn resolve_inlay_hint(
13463 &self,
13464 hint: InlayHint,
13465 buffer_handle: Model<Buffer>,
13466 server_id: LanguageServerId,
13467 cx: &mut AppContext,
13468 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13469
13470 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13471
13472 fn document_highlights(
13473 &self,
13474 buffer: &Model<Buffer>,
13475 position: text::Anchor,
13476 cx: &mut AppContext,
13477 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13478
13479 fn definitions(
13480 &self,
13481 buffer: &Model<Buffer>,
13482 position: text::Anchor,
13483 kind: GotoDefinitionKind,
13484 cx: &mut AppContext,
13485 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13486
13487 fn range_for_rename(
13488 &self,
13489 buffer: &Model<Buffer>,
13490 position: text::Anchor,
13491 cx: &mut AppContext,
13492 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13493
13494 fn perform_rename(
13495 &self,
13496 buffer: &Model<Buffer>,
13497 position: text::Anchor,
13498 new_name: String,
13499 cx: &mut AppContext,
13500 ) -> Option<Task<Result<ProjectTransaction>>>;
13501}
13502
13503pub trait CompletionProvider {
13504 fn completions(
13505 &self,
13506 buffer: &Model<Buffer>,
13507 buffer_position: text::Anchor,
13508 trigger: CompletionContext,
13509 cx: &mut ViewContext<Editor>,
13510 ) -> Task<Result<Vec<Completion>>>;
13511
13512 fn resolve_completions(
13513 &self,
13514 buffer: Model<Buffer>,
13515 completion_indices: Vec<usize>,
13516 completions: Rc<RefCell<Box<[Completion]>>>,
13517 cx: &mut ViewContext<Editor>,
13518 ) -> Task<Result<bool>>;
13519
13520 fn apply_additional_edits_for_completion(
13521 &self,
13522 _buffer: Model<Buffer>,
13523 _completions: Rc<RefCell<Box<[Completion]>>>,
13524 _completion_index: usize,
13525 _push_to_history: bool,
13526 _cx: &mut ViewContext<Editor>,
13527 ) -> Task<Result<Option<language::Transaction>>> {
13528 Task::ready(Ok(None))
13529 }
13530
13531 fn is_completion_trigger(
13532 &self,
13533 buffer: &Model<Buffer>,
13534 position: language::Anchor,
13535 text: &str,
13536 trigger_in_words: bool,
13537 cx: &mut ViewContext<Editor>,
13538 ) -> bool;
13539
13540 fn sort_completions(&self) -> bool {
13541 true
13542 }
13543}
13544
13545pub trait CodeActionProvider {
13546 fn id(&self) -> Arc<str>;
13547
13548 fn code_actions(
13549 &self,
13550 buffer: &Model<Buffer>,
13551 range: Range<text::Anchor>,
13552 cx: &mut WindowContext,
13553 ) -> Task<Result<Vec<CodeAction>>>;
13554
13555 fn apply_code_action(
13556 &self,
13557 buffer_handle: Model<Buffer>,
13558 action: CodeAction,
13559 excerpt_id: ExcerptId,
13560 push_to_history: bool,
13561 cx: &mut WindowContext,
13562 ) -> Task<Result<ProjectTransaction>>;
13563}
13564
13565impl CodeActionProvider for Model<Project> {
13566 fn id(&self) -> Arc<str> {
13567 "project".into()
13568 }
13569
13570 fn code_actions(
13571 &self,
13572 buffer: &Model<Buffer>,
13573 range: Range<text::Anchor>,
13574 cx: &mut WindowContext,
13575 ) -> Task<Result<Vec<CodeAction>>> {
13576 self.update(cx, |project, cx| {
13577 project.code_actions(buffer, range, None, cx)
13578 })
13579 }
13580
13581 fn apply_code_action(
13582 &self,
13583 buffer_handle: Model<Buffer>,
13584 action: CodeAction,
13585 _excerpt_id: ExcerptId,
13586 push_to_history: bool,
13587 cx: &mut WindowContext,
13588 ) -> Task<Result<ProjectTransaction>> {
13589 self.update(cx, |project, cx| {
13590 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13591 })
13592 }
13593}
13594
13595fn snippet_completions(
13596 project: &Project,
13597 buffer: &Model<Buffer>,
13598 buffer_position: text::Anchor,
13599 cx: &mut AppContext,
13600) -> Task<Result<Vec<Completion>>> {
13601 let language = buffer.read(cx).language_at(buffer_position);
13602 let language_name = language.as_ref().map(|language| language.lsp_id());
13603 let snippet_store = project.snippets().read(cx);
13604 let snippets = snippet_store.snippets_for(language_name, cx);
13605
13606 if snippets.is_empty() {
13607 return Task::ready(Ok(vec![]));
13608 }
13609 let snapshot = buffer.read(cx).text_snapshot();
13610 let chars: String = snapshot
13611 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13612 .collect();
13613
13614 let scope = language.map(|language| language.default_scope());
13615 let executor = cx.background_executor().clone();
13616
13617 cx.background_executor().spawn(async move {
13618 let classifier = CharClassifier::new(scope).for_completion(true);
13619 let mut last_word = chars
13620 .chars()
13621 .take_while(|c| classifier.is_word(*c))
13622 .collect::<String>();
13623 last_word = last_word.chars().rev().collect();
13624
13625 if last_word.is_empty() {
13626 return Ok(vec![]);
13627 }
13628
13629 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13630 let to_lsp = |point: &text::Anchor| {
13631 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13632 point_to_lsp(end)
13633 };
13634 let lsp_end = to_lsp(&buffer_position);
13635
13636 let candidates = snippets
13637 .iter()
13638 .enumerate()
13639 .flat_map(|(ix, snippet)| {
13640 snippet
13641 .prefix
13642 .iter()
13643 .map(move |prefix| StringMatchCandidate::new(ix, &prefix))
13644 })
13645 .collect::<Vec<StringMatchCandidate>>();
13646
13647 let mut matches = fuzzy::match_strings(
13648 &candidates,
13649 &last_word,
13650 last_word.chars().any(|c| c.is_uppercase()),
13651 100,
13652 &Default::default(),
13653 executor,
13654 )
13655 .await;
13656
13657 // Remove all candidates where the query's start does not match the start of any word in the candidate
13658 if let Some(query_start) = last_word.chars().next() {
13659 matches.retain(|string_match| {
13660 split_words(&string_match.string).any(|word| {
13661 // Check that the first codepoint of the word as lowercase matches the first
13662 // codepoint of the query as lowercase
13663 word.chars()
13664 .flat_map(|codepoint| codepoint.to_lowercase())
13665 .zip(query_start.to_lowercase())
13666 .all(|(word_cp, query_cp)| word_cp == query_cp)
13667 })
13668 });
13669 }
13670
13671 let matched_strings = matches
13672 .into_iter()
13673 .map(|m| m.string)
13674 .collect::<HashSet<_>>();
13675
13676 let result: Vec<Completion> = snippets
13677 .into_iter()
13678 .filter_map(|snippet| {
13679 let matching_prefix = snippet
13680 .prefix
13681 .iter()
13682 .find(|prefix| matched_strings.contains(*prefix))?;
13683 let start = as_offset - last_word.len();
13684 let start = snapshot.anchor_before(start);
13685 let range = start..buffer_position;
13686 let lsp_start = to_lsp(&start);
13687 let lsp_range = lsp::Range {
13688 start: lsp_start,
13689 end: lsp_end,
13690 };
13691 Some(Completion {
13692 old_range: range,
13693 new_text: snippet.body.clone(),
13694 resolved: false,
13695 label: CodeLabel {
13696 text: matching_prefix.clone(),
13697 runs: vec![],
13698 filter_range: 0..matching_prefix.len(),
13699 },
13700 server_id: LanguageServerId(usize::MAX),
13701 documentation: snippet.description.clone().map(Documentation::SingleLine),
13702 lsp_completion: lsp::CompletionItem {
13703 label: snippet.prefix.first().unwrap().clone(),
13704 kind: Some(CompletionItemKind::SNIPPET),
13705 label_details: snippet.description.as_ref().map(|description| {
13706 lsp::CompletionItemLabelDetails {
13707 detail: Some(description.clone()),
13708 description: None,
13709 }
13710 }),
13711 insert_text_format: Some(InsertTextFormat::SNIPPET),
13712 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13713 lsp::InsertReplaceEdit {
13714 new_text: snippet.body.clone(),
13715 insert: lsp_range,
13716 replace: lsp_range,
13717 },
13718 )),
13719 filter_text: Some(snippet.body.clone()),
13720 sort_text: Some(char::MAX.to_string()),
13721 ..Default::default()
13722 },
13723 confirm: None,
13724 })
13725 })
13726 .collect();
13727
13728 Ok(result)
13729 })
13730}
13731
13732impl CompletionProvider for Model<Project> {
13733 fn completions(
13734 &self,
13735 buffer: &Model<Buffer>,
13736 buffer_position: text::Anchor,
13737 options: CompletionContext,
13738 cx: &mut ViewContext<Editor>,
13739 ) -> Task<Result<Vec<Completion>>> {
13740 self.update(cx, |project, cx| {
13741 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13742 let project_completions = project.completions(buffer, buffer_position, options, cx);
13743 cx.background_executor().spawn(async move {
13744 let mut completions = project_completions.await?;
13745 let snippets_completions = snippets.await?;
13746 completions.extend(snippets_completions);
13747 Ok(completions)
13748 })
13749 })
13750 }
13751
13752 fn resolve_completions(
13753 &self,
13754 buffer: Model<Buffer>,
13755 completion_indices: Vec<usize>,
13756 completions: Rc<RefCell<Box<[Completion]>>>,
13757 cx: &mut ViewContext<Editor>,
13758 ) -> Task<Result<bool>> {
13759 self.update(cx, |project, cx| {
13760 project.lsp_store().update(cx, |lsp_store, cx| {
13761 lsp_store.resolve_completions(buffer, completion_indices, completions, cx)
13762 })
13763 })
13764 }
13765
13766 fn apply_additional_edits_for_completion(
13767 &self,
13768 buffer: Model<Buffer>,
13769 completions: Rc<RefCell<Box<[Completion]>>>,
13770 completion_index: usize,
13771 push_to_history: bool,
13772 cx: &mut ViewContext<Editor>,
13773 ) -> Task<Result<Option<language::Transaction>>> {
13774 self.update(cx, |project, cx| {
13775 project.lsp_store().update(cx, |lsp_store, cx| {
13776 lsp_store.apply_additional_edits_for_completion(
13777 buffer,
13778 completions,
13779 completion_index,
13780 push_to_history,
13781 cx,
13782 )
13783 })
13784 })
13785 }
13786
13787 fn is_completion_trigger(
13788 &self,
13789 buffer: &Model<Buffer>,
13790 position: language::Anchor,
13791 text: &str,
13792 trigger_in_words: bool,
13793 cx: &mut ViewContext<Editor>,
13794 ) -> bool {
13795 let mut chars = text.chars();
13796 let char = if let Some(char) = chars.next() {
13797 char
13798 } else {
13799 return false;
13800 };
13801 if chars.next().is_some() {
13802 return false;
13803 }
13804
13805 let buffer = buffer.read(cx);
13806 let snapshot = buffer.snapshot();
13807 if !snapshot.settings_at(position, cx).show_completions_on_input {
13808 return false;
13809 }
13810 let classifier = snapshot.char_classifier_at(position).for_completion(true);
13811 if trigger_in_words && classifier.is_word(char) {
13812 return true;
13813 }
13814
13815 buffer.completion_triggers().contains(text)
13816 }
13817}
13818
13819impl SemanticsProvider for Model<Project> {
13820 fn hover(
13821 &self,
13822 buffer: &Model<Buffer>,
13823 position: text::Anchor,
13824 cx: &mut AppContext,
13825 ) -> Option<Task<Vec<project::Hover>>> {
13826 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13827 }
13828
13829 fn document_highlights(
13830 &self,
13831 buffer: &Model<Buffer>,
13832 position: text::Anchor,
13833 cx: &mut AppContext,
13834 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13835 Some(self.update(cx, |project, cx| {
13836 project.document_highlights(buffer, position, cx)
13837 }))
13838 }
13839
13840 fn definitions(
13841 &self,
13842 buffer: &Model<Buffer>,
13843 position: text::Anchor,
13844 kind: GotoDefinitionKind,
13845 cx: &mut AppContext,
13846 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13847 Some(self.update(cx, |project, cx| match kind {
13848 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13849 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13850 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13851 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13852 }))
13853 }
13854
13855 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13856 // TODO: make this work for remote projects
13857 self.read(cx)
13858 .language_servers_for_local_buffer(buffer.read(cx), cx)
13859 .any(
13860 |(_, server)| match server.capabilities().inlay_hint_provider {
13861 Some(lsp::OneOf::Left(enabled)) => enabled,
13862 Some(lsp::OneOf::Right(_)) => true,
13863 None => false,
13864 },
13865 )
13866 }
13867
13868 fn inlay_hints(
13869 &self,
13870 buffer_handle: Model<Buffer>,
13871 range: Range<text::Anchor>,
13872 cx: &mut AppContext,
13873 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13874 Some(self.update(cx, |project, cx| {
13875 project.inlay_hints(buffer_handle, range, cx)
13876 }))
13877 }
13878
13879 fn resolve_inlay_hint(
13880 &self,
13881 hint: InlayHint,
13882 buffer_handle: Model<Buffer>,
13883 server_id: LanguageServerId,
13884 cx: &mut AppContext,
13885 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13886 Some(self.update(cx, |project, cx| {
13887 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13888 }))
13889 }
13890
13891 fn range_for_rename(
13892 &self,
13893 buffer: &Model<Buffer>,
13894 position: text::Anchor,
13895 cx: &mut AppContext,
13896 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13897 Some(self.update(cx, |project, cx| {
13898 project.prepare_rename(buffer.clone(), position, cx)
13899 }))
13900 }
13901
13902 fn perform_rename(
13903 &self,
13904 buffer: &Model<Buffer>,
13905 position: text::Anchor,
13906 new_name: String,
13907 cx: &mut AppContext,
13908 ) -> Option<Task<Result<ProjectTransaction>>> {
13909 Some(self.update(cx, |project, cx| {
13910 project.perform_rename(buffer.clone(), position, new_name, cx)
13911 }))
13912 }
13913}
13914
13915fn inlay_hint_settings(
13916 location: Anchor,
13917 snapshot: &MultiBufferSnapshot,
13918 cx: &mut ViewContext<Editor>,
13919) -> InlayHintSettings {
13920 let file = snapshot.file_at(location);
13921 let language = snapshot.language_at(location).map(|l| l.name());
13922 language_settings(language, file, cx).inlay_hints
13923}
13924
13925fn consume_contiguous_rows(
13926 contiguous_row_selections: &mut Vec<Selection<Point>>,
13927 selection: &Selection<Point>,
13928 display_map: &DisplaySnapshot,
13929 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
13930) -> (MultiBufferRow, MultiBufferRow) {
13931 contiguous_row_selections.push(selection.clone());
13932 let start_row = MultiBufferRow(selection.start.row);
13933 let mut end_row = ending_row(selection, display_map);
13934
13935 while let Some(next_selection) = selections.peek() {
13936 if next_selection.start.row <= end_row.0 {
13937 end_row = ending_row(next_selection, display_map);
13938 contiguous_row_selections.push(selections.next().unwrap().clone());
13939 } else {
13940 break;
13941 }
13942 }
13943 (start_row, end_row)
13944}
13945
13946fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13947 if next_selection.end.column > 0 || next_selection.is_empty() {
13948 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13949 } else {
13950 MultiBufferRow(next_selection.end.row)
13951 }
13952}
13953
13954impl EditorSnapshot {
13955 pub fn remote_selections_in_range<'a>(
13956 &'a self,
13957 range: &'a Range<Anchor>,
13958 collaboration_hub: &dyn CollaborationHub,
13959 cx: &'a AppContext,
13960 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13961 let participant_names = collaboration_hub.user_names(cx);
13962 let participant_indices = collaboration_hub.user_participant_indices(cx);
13963 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13964 let collaborators_by_replica_id = collaborators_by_peer_id
13965 .iter()
13966 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13967 .collect::<HashMap<_, _>>();
13968 self.buffer_snapshot
13969 .selections_in_range(range, false)
13970 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13971 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13972 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13973 let user_name = participant_names.get(&collaborator.user_id).cloned();
13974 Some(RemoteSelection {
13975 replica_id,
13976 selection,
13977 cursor_shape,
13978 line_mode,
13979 participant_index,
13980 peer_id: collaborator.peer_id,
13981 user_name,
13982 })
13983 })
13984 }
13985
13986 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13987 self.display_snapshot.buffer_snapshot.language_at(position)
13988 }
13989
13990 pub fn is_focused(&self) -> bool {
13991 self.is_focused
13992 }
13993
13994 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13995 self.placeholder_text.as_ref()
13996 }
13997
13998 pub fn scroll_position(&self) -> gpui::Point<f32> {
13999 self.scroll_anchor.scroll_position(&self.display_snapshot)
14000 }
14001
14002 fn gutter_dimensions(
14003 &self,
14004 font_id: FontId,
14005 font_size: Pixels,
14006 em_width: Pixels,
14007 em_advance: Pixels,
14008 max_line_number_width: Pixels,
14009 cx: &AppContext,
14010 ) -> GutterDimensions {
14011 if !self.show_gutter {
14012 return GutterDimensions::default();
14013 }
14014 let descent = cx.text_system().descent(font_id, font_size);
14015
14016 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
14017 matches!(
14018 ProjectSettings::get_global(cx).git.git_gutter,
14019 Some(GitGutterSetting::TrackedFiles)
14020 )
14021 });
14022 let gutter_settings = EditorSettings::get_global(cx).gutter;
14023 let show_line_numbers = self
14024 .show_line_numbers
14025 .unwrap_or(gutter_settings.line_numbers);
14026 let line_gutter_width = if show_line_numbers {
14027 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
14028 let min_width_for_number_on_gutter = em_advance * 4.0;
14029 max_line_number_width.max(min_width_for_number_on_gutter)
14030 } else {
14031 0.0.into()
14032 };
14033
14034 let show_code_actions = self
14035 .show_code_actions
14036 .unwrap_or(gutter_settings.code_actions);
14037
14038 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
14039
14040 let git_blame_entries_width =
14041 self.git_blame_gutter_max_author_length
14042 .map(|max_author_length| {
14043 // Length of the author name, but also space for the commit hash,
14044 // the spacing and the timestamp.
14045 let max_char_count = max_author_length
14046 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
14047 + 7 // length of commit sha
14048 + 14 // length of max relative timestamp ("60 minutes ago")
14049 + 4; // gaps and margins
14050
14051 em_advance * max_char_count
14052 });
14053
14054 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
14055 left_padding += if show_code_actions || show_runnables {
14056 em_width * 3.0
14057 } else if show_git_gutter && show_line_numbers {
14058 em_width * 2.0
14059 } else if show_git_gutter || show_line_numbers {
14060 em_width
14061 } else {
14062 px(0.)
14063 };
14064
14065 let right_padding = if gutter_settings.folds && show_line_numbers {
14066 em_width * 4.0
14067 } else if gutter_settings.folds {
14068 em_width * 3.0
14069 } else if show_line_numbers {
14070 em_width
14071 } else {
14072 px(0.)
14073 };
14074
14075 GutterDimensions {
14076 left_padding,
14077 right_padding,
14078 width: line_gutter_width + left_padding + right_padding,
14079 margin: -descent,
14080 git_blame_entries_width,
14081 }
14082 }
14083
14084 pub fn render_crease_toggle(
14085 &self,
14086 buffer_row: MultiBufferRow,
14087 row_contains_cursor: bool,
14088 editor: View<Editor>,
14089 cx: &mut WindowContext,
14090 ) -> Option<AnyElement> {
14091 let folded = self.is_line_folded(buffer_row);
14092 let mut is_foldable = false;
14093
14094 if let Some(crease) = self
14095 .crease_snapshot
14096 .query_row(buffer_row, &self.buffer_snapshot)
14097 {
14098 is_foldable = true;
14099 match crease {
14100 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
14101 if let Some(render_toggle) = render_toggle {
14102 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14103 if folded {
14104 editor.update(cx, |editor, cx| {
14105 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14106 });
14107 } else {
14108 editor.update(cx, |editor, cx| {
14109 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14110 });
14111 }
14112 });
14113 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14114 }
14115 }
14116 }
14117 }
14118
14119 is_foldable |= self.starts_indent(buffer_row);
14120
14121 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14122 Some(
14123 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14124 .toggle_state(folded)
14125 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14126 if folded {
14127 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14128 } else {
14129 this.fold_at(&FoldAt { buffer_row }, cx);
14130 }
14131 }))
14132 .into_any_element(),
14133 )
14134 } else {
14135 None
14136 }
14137 }
14138
14139 pub fn render_crease_trailer(
14140 &self,
14141 buffer_row: MultiBufferRow,
14142 cx: &mut WindowContext,
14143 ) -> Option<AnyElement> {
14144 let folded = self.is_line_folded(buffer_row);
14145 if let Crease::Inline { render_trailer, .. } = self
14146 .crease_snapshot
14147 .query_row(buffer_row, &self.buffer_snapshot)?
14148 {
14149 let render_trailer = render_trailer.as_ref()?;
14150 Some(render_trailer(buffer_row, folded, cx))
14151 } else {
14152 None
14153 }
14154 }
14155}
14156
14157impl Deref for EditorSnapshot {
14158 type Target = DisplaySnapshot;
14159
14160 fn deref(&self) -> &Self::Target {
14161 &self.display_snapshot
14162 }
14163}
14164
14165#[derive(Clone, Debug, PartialEq, Eq)]
14166pub enum EditorEvent {
14167 InputIgnored {
14168 text: Arc<str>,
14169 },
14170 InputHandled {
14171 utf16_range_to_replace: Option<Range<isize>>,
14172 text: Arc<str>,
14173 },
14174 ExcerptsAdded {
14175 buffer: Model<Buffer>,
14176 predecessor: ExcerptId,
14177 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14178 },
14179 ExcerptsRemoved {
14180 ids: Vec<ExcerptId>,
14181 },
14182 BufferFoldToggled {
14183 ids: Vec<ExcerptId>,
14184 folded: bool,
14185 },
14186 ExcerptsEdited {
14187 ids: Vec<ExcerptId>,
14188 },
14189 ExcerptsExpanded {
14190 ids: Vec<ExcerptId>,
14191 },
14192 BufferEdited,
14193 Edited {
14194 transaction_id: clock::Lamport,
14195 },
14196 Reparsed(BufferId),
14197 Focused,
14198 FocusedIn,
14199 Blurred,
14200 DirtyChanged,
14201 Saved,
14202 TitleChanged,
14203 DiffBaseChanged,
14204 SelectionsChanged {
14205 local: bool,
14206 },
14207 ScrollPositionChanged {
14208 local: bool,
14209 autoscroll: bool,
14210 },
14211 Closed,
14212 TransactionUndone {
14213 transaction_id: clock::Lamport,
14214 },
14215 TransactionBegun {
14216 transaction_id: clock::Lamport,
14217 },
14218 Reloaded,
14219 CursorShapeChanged,
14220}
14221
14222impl EventEmitter<EditorEvent> for Editor {}
14223
14224impl FocusableView for Editor {
14225 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14226 self.focus_handle.clone()
14227 }
14228}
14229
14230impl Render for Editor {
14231 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14232 let settings = ThemeSettings::get_global(cx);
14233
14234 let mut text_style = match self.mode {
14235 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14236 color: cx.theme().colors().editor_foreground,
14237 font_family: settings.ui_font.family.clone(),
14238 font_features: settings.ui_font.features.clone(),
14239 font_fallbacks: settings.ui_font.fallbacks.clone(),
14240 font_size: rems(0.875).into(),
14241 font_weight: settings.ui_font.weight,
14242 line_height: relative(settings.buffer_line_height.value()),
14243 ..Default::default()
14244 },
14245 EditorMode::Full => TextStyle {
14246 color: cx.theme().colors().editor_foreground,
14247 font_family: settings.buffer_font.family.clone(),
14248 font_features: settings.buffer_font.features.clone(),
14249 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14250 font_size: settings.buffer_font_size(cx).into(),
14251 font_weight: settings.buffer_font.weight,
14252 line_height: relative(settings.buffer_line_height.value()),
14253 ..Default::default()
14254 },
14255 };
14256 if let Some(text_style_refinement) = &self.text_style_refinement {
14257 text_style.refine(text_style_refinement)
14258 }
14259
14260 let background = match self.mode {
14261 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14262 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14263 EditorMode::Full => cx.theme().colors().editor_background,
14264 };
14265
14266 EditorElement::new(
14267 cx.view(),
14268 EditorStyle {
14269 background,
14270 local_player: cx.theme().players().local(),
14271 text: text_style,
14272 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14273 syntax: cx.theme().syntax().clone(),
14274 status: cx.theme().status().clone(),
14275 inlay_hints_style: make_inlay_hints_style(cx),
14276 inline_completion_styles: make_suggestion_styles(cx),
14277 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14278 },
14279 )
14280 }
14281}
14282
14283impl ViewInputHandler for Editor {
14284 fn text_for_range(
14285 &mut self,
14286 range_utf16: Range<usize>,
14287 adjusted_range: &mut Option<Range<usize>>,
14288 cx: &mut ViewContext<Self>,
14289 ) -> Option<String> {
14290 let snapshot = self.buffer.read(cx).read(cx);
14291 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14292 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14293 if (start.0..end.0) != range_utf16 {
14294 adjusted_range.replace(start.0..end.0);
14295 }
14296 Some(snapshot.text_for_range(start..end).collect())
14297 }
14298
14299 fn selected_text_range(
14300 &mut self,
14301 ignore_disabled_input: bool,
14302 cx: &mut ViewContext<Self>,
14303 ) -> Option<UTF16Selection> {
14304 // Prevent the IME menu from appearing when holding down an alphabetic key
14305 // while input is disabled.
14306 if !ignore_disabled_input && !self.input_enabled {
14307 return None;
14308 }
14309
14310 let selection = self.selections.newest::<OffsetUtf16>(cx);
14311 let range = selection.range();
14312
14313 Some(UTF16Selection {
14314 range: range.start.0..range.end.0,
14315 reversed: selection.reversed,
14316 })
14317 }
14318
14319 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14320 let snapshot = self.buffer.read(cx).read(cx);
14321 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14322 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14323 }
14324
14325 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14326 self.clear_highlights::<InputComposition>(cx);
14327 self.ime_transaction.take();
14328 }
14329
14330 fn replace_text_in_range(
14331 &mut self,
14332 range_utf16: Option<Range<usize>>,
14333 text: &str,
14334 cx: &mut ViewContext<Self>,
14335 ) {
14336 if !self.input_enabled {
14337 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14338 return;
14339 }
14340
14341 self.transact(cx, |this, cx| {
14342 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14343 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14344 Some(this.selection_replacement_ranges(range_utf16, cx))
14345 } else {
14346 this.marked_text_ranges(cx)
14347 };
14348
14349 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14350 let newest_selection_id = this.selections.newest_anchor().id;
14351 this.selections
14352 .all::<OffsetUtf16>(cx)
14353 .iter()
14354 .zip(ranges_to_replace.iter())
14355 .find_map(|(selection, range)| {
14356 if selection.id == newest_selection_id {
14357 Some(
14358 (range.start.0 as isize - selection.head().0 as isize)
14359 ..(range.end.0 as isize - selection.head().0 as isize),
14360 )
14361 } else {
14362 None
14363 }
14364 })
14365 });
14366
14367 cx.emit(EditorEvent::InputHandled {
14368 utf16_range_to_replace: range_to_replace,
14369 text: text.into(),
14370 });
14371
14372 if let Some(new_selected_ranges) = new_selected_ranges {
14373 this.change_selections(None, cx, |selections| {
14374 selections.select_ranges(new_selected_ranges)
14375 });
14376 this.backspace(&Default::default(), cx);
14377 }
14378
14379 this.handle_input(text, cx);
14380 });
14381
14382 if let Some(transaction) = self.ime_transaction {
14383 self.buffer.update(cx, |buffer, cx| {
14384 buffer.group_until_transaction(transaction, cx);
14385 });
14386 }
14387
14388 self.unmark_text(cx);
14389 }
14390
14391 fn replace_and_mark_text_in_range(
14392 &mut self,
14393 range_utf16: Option<Range<usize>>,
14394 text: &str,
14395 new_selected_range_utf16: Option<Range<usize>>,
14396 cx: &mut ViewContext<Self>,
14397 ) {
14398 if !self.input_enabled {
14399 return;
14400 }
14401
14402 let transaction = self.transact(cx, |this, cx| {
14403 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14404 let snapshot = this.buffer.read(cx).read(cx);
14405 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14406 for marked_range in &mut marked_ranges {
14407 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14408 marked_range.start.0 += relative_range_utf16.start;
14409 marked_range.start =
14410 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14411 marked_range.end =
14412 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14413 }
14414 }
14415 Some(marked_ranges)
14416 } else if let Some(range_utf16) = range_utf16 {
14417 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14418 Some(this.selection_replacement_ranges(range_utf16, cx))
14419 } else {
14420 None
14421 };
14422
14423 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14424 let newest_selection_id = this.selections.newest_anchor().id;
14425 this.selections
14426 .all::<OffsetUtf16>(cx)
14427 .iter()
14428 .zip(ranges_to_replace.iter())
14429 .find_map(|(selection, range)| {
14430 if selection.id == newest_selection_id {
14431 Some(
14432 (range.start.0 as isize - selection.head().0 as isize)
14433 ..(range.end.0 as isize - selection.head().0 as isize),
14434 )
14435 } else {
14436 None
14437 }
14438 })
14439 });
14440
14441 cx.emit(EditorEvent::InputHandled {
14442 utf16_range_to_replace: range_to_replace,
14443 text: text.into(),
14444 });
14445
14446 if let Some(ranges) = ranges_to_replace {
14447 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14448 }
14449
14450 let marked_ranges = {
14451 let snapshot = this.buffer.read(cx).read(cx);
14452 this.selections
14453 .disjoint_anchors()
14454 .iter()
14455 .map(|selection| {
14456 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14457 })
14458 .collect::<Vec<_>>()
14459 };
14460
14461 if text.is_empty() {
14462 this.unmark_text(cx);
14463 } else {
14464 this.highlight_text::<InputComposition>(
14465 marked_ranges.clone(),
14466 HighlightStyle {
14467 underline: Some(UnderlineStyle {
14468 thickness: px(1.),
14469 color: None,
14470 wavy: false,
14471 }),
14472 ..Default::default()
14473 },
14474 cx,
14475 );
14476 }
14477
14478 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14479 let use_autoclose = this.use_autoclose;
14480 let use_auto_surround = this.use_auto_surround;
14481 this.set_use_autoclose(false);
14482 this.set_use_auto_surround(false);
14483 this.handle_input(text, cx);
14484 this.set_use_autoclose(use_autoclose);
14485 this.set_use_auto_surround(use_auto_surround);
14486
14487 if let Some(new_selected_range) = new_selected_range_utf16 {
14488 let snapshot = this.buffer.read(cx).read(cx);
14489 let new_selected_ranges = marked_ranges
14490 .into_iter()
14491 .map(|marked_range| {
14492 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14493 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14494 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14495 snapshot.clip_offset_utf16(new_start, Bias::Left)
14496 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14497 })
14498 .collect::<Vec<_>>();
14499
14500 drop(snapshot);
14501 this.change_selections(None, cx, |selections| {
14502 selections.select_ranges(new_selected_ranges)
14503 });
14504 }
14505 });
14506
14507 self.ime_transaction = self.ime_transaction.or(transaction);
14508 if let Some(transaction) = self.ime_transaction {
14509 self.buffer.update(cx, |buffer, cx| {
14510 buffer.group_until_transaction(transaction, cx);
14511 });
14512 }
14513
14514 if self.text_highlights::<InputComposition>(cx).is_none() {
14515 self.ime_transaction.take();
14516 }
14517 }
14518
14519 fn bounds_for_range(
14520 &mut self,
14521 range_utf16: Range<usize>,
14522 element_bounds: gpui::Bounds<Pixels>,
14523 cx: &mut ViewContext<Self>,
14524 ) -> Option<gpui::Bounds<Pixels>> {
14525 let text_layout_details = self.text_layout_details(cx);
14526 let gpui::Point {
14527 x: em_width,
14528 y: line_height,
14529 } = self.character_size(cx);
14530
14531 let snapshot = self.snapshot(cx);
14532 let scroll_position = snapshot.scroll_position();
14533 let scroll_left = scroll_position.x * em_width;
14534
14535 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14536 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14537 + self.gutter_dimensions.width
14538 + self.gutter_dimensions.margin;
14539 let y = line_height * (start.row().as_f32() - scroll_position.y);
14540
14541 Some(Bounds {
14542 origin: element_bounds.origin + point(x, y),
14543 size: size(em_width, line_height),
14544 })
14545 }
14546}
14547
14548trait SelectionExt {
14549 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14550 fn spanned_rows(
14551 &self,
14552 include_end_if_at_line_start: bool,
14553 map: &DisplaySnapshot,
14554 ) -> Range<MultiBufferRow>;
14555}
14556
14557impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14558 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14559 let start = self
14560 .start
14561 .to_point(&map.buffer_snapshot)
14562 .to_display_point(map);
14563 let end = self
14564 .end
14565 .to_point(&map.buffer_snapshot)
14566 .to_display_point(map);
14567 if self.reversed {
14568 end..start
14569 } else {
14570 start..end
14571 }
14572 }
14573
14574 fn spanned_rows(
14575 &self,
14576 include_end_if_at_line_start: bool,
14577 map: &DisplaySnapshot,
14578 ) -> Range<MultiBufferRow> {
14579 let start = self.start.to_point(&map.buffer_snapshot);
14580 let mut end = self.end.to_point(&map.buffer_snapshot);
14581 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14582 end.row -= 1;
14583 }
14584
14585 let buffer_start = map.prev_line_boundary(start).0;
14586 let buffer_end = map.next_line_boundary(end).0;
14587 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14588 }
14589}
14590
14591impl<T: InvalidationRegion> InvalidationStack<T> {
14592 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14593 where
14594 S: Clone + ToOffset,
14595 {
14596 while let Some(region) = self.last() {
14597 let all_selections_inside_invalidation_ranges =
14598 if selections.len() == region.ranges().len() {
14599 selections
14600 .iter()
14601 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14602 .all(|(selection, invalidation_range)| {
14603 let head = selection.head().to_offset(buffer);
14604 invalidation_range.start <= head && invalidation_range.end >= head
14605 })
14606 } else {
14607 false
14608 };
14609
14610 if all_selections_inside_invalidation_ranges {
14611 break;
14612 } else {
14613 self.pop();
14614 }
14615 }
14616 }
14617}
14618
14619impl<T> Default for InvalidationStack<T> {
14620 fn default() -> Self {
14621 Self(Default::default())
14622 }
14623}
14624
14625impl<T> Deref for InvalidationStack<T> {
14626 type Target = Vec<T>;
14627
14628 fn deref(&self) -> &Self::Target {
14629 &self.0
14630 }
14631}
14632
14633impl<T> DerefMut for InvalidationStack<T> {
14634 fn deref_mut(&mut self) -> &mut Self::Target {
14635 &mut self.0
14636 }
14637}
14638
14639impl InvalidationRegion for SnippetState {
14640 fn ranges(&self) -> &[Range<Anchor>] {
14641 &self.ranges[self.active_index]
14642 }
14643}
14644
14645pub fn diagnostic_block_renderer(
14646 diagnostic: Diagnostic,
14647 max_message_rows: Option<u8>,
14648 allow_closing: bool,
14649 _is_valid: bool,
14650) -> RenderBlock {
14651 let (text_without_backticks, code_ranges) =
14652 highlight_diagnostic_message(&diagnostic, max_message_rows);
14653
14654 Arc::new(move |cx: &mut BlockContext| {
14655 let group_id: SharedString = cx.block_id.to_string().into();
14656
14657 let mut text_style = cx.text_style().clone();
14658 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14659 let theme_settings = ThemeSettings::get_global(cx);
14660 text_style.font_family = theme_settings.buffer_font.family.clone();
14661 text_style.font_style = theme_settings.buffer_font.style;
14662 text_style.font_features = theme_settings.buffer_font.features.clone();
14663 text_style.font_weight = theme_settings.buffer_font.weight;
14664
14665 let multi_line_diagnostic = diagnostic.message.contains('\n');
14666
14667 let buttons = |diagnostic: &Diagnostic| {
14668 if multi_line_diagnostic {
14669 v_flex()
14670 } else {
14671 h_flex()
14672 }
14673 .when(allow_closing, |div| {
14674 div.children(diagnostic.is_primary.then(|| {
14675 IconButton::new("close-block", IconName::XCircle)
14676 .icon_color(Color::Muted)
14677 .size(ButtonSize::Compact)
14678 .style(ButtonStyle::Transparent)
14679 .visible_on_hover(group_id.clone())
14680 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14681 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14682 }))
14683 })
14684 .child(
14685 IconButton::new("copy-block", IconName::Copy)
14686 .icon_color(Color::Muted)
14687 .size(ButtonSize::Compact)
14688 .style(ButtonStyle::Transparent)
14689 .visible_on_hover(group_id.clone())
14690 .on_click({
14691 let message = diagnostic.message.clone();
14692 move |_click, cx| {
14693 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14694 }
14695 })
14696 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14697 )
14698 };
14699
14700 let icon_size = buttons(&diagnostic)
14701 .into_any_element()
14702 .layout_as_root(AvailableSpace::min_size(), cx);
14703
14704 h_flex()
14705 .id(cx.block_id)
14706 .group(group_id.clone())
14707 .relative()
14708 .size_full()
14709 .block_mouse_down()
14710 .pl(cx.gutter_dimensions.width)
14711 .w(cx.max_width - cx.gutter_dimensions.full_width())
14712 .child(
14713 div()
14714 .flex()
14715 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14716 .flex_shrink(),
14717 )
14718 .child(buttons(&diagnostic))
14719 .child(div().flex().flex_shrink_0().child(
14720 StyledText::new(text_without_backticks.clone()).with_highlights(
14721 &text_style,
14722 code_ranges.iter().map(|range| {
14723 (
14724 range.clone(),
14725 HighlightStyle {
14726 font_weight: Some(FontWeight::BOLD),
14727 ..Default::default()
14728 },
14729 )
14730 }),
14731 ),
14732 ))
14733 .into_any_element()
14734 })
14735}
14736
14737fn inline_completion_edit_text(
14738 editor_snapshot: &EditorSnapshot,
14739 edits: &Vec<(Range<Anchor>, String)>,
14740 include_deletions: bool,
14741 cx: &WindowContext,
14742) -> InlineCompletionText {
14743 let edit_start = edits
14744 .first()
14745 .unwrap()
14746 .0
14747 .start
14748 .to_display_point(editor_snapshot);
14749
14750 let mut text = String::new();
14751 let mut offset = DisplayPoint::new(edit_start.row(), 0).to_offset(editor_snapshot, Bias::Left);
14752 let mut highlights = Vec::new();
14753 for (old_range, new_text) in edits {
14754 let old_offset_range = old_range.to_offset(&editor_snapshot.buffer_snapshot);
14755 text.extend(
14756 editor_snapshot
14757 .buffer_snapshot
14758 .chunks(offset..old_offset_range.start, false)
14759 .map(|chunk| chunk.text),
14760 );
14761 offset = old_offset_range.end;
14762
14763 let start = text.len();
14764 let color = if include_deletions && new_text.is_empty() {
14765 text.extend(
14766 editor_snapshot
14767 .buffer_snapshot
14768 .chunks(old_offset_range.start..offset, false)
14769 .map(|chunk| chunk.text),
14770 );
14771 cx.theme().status().deleted_background
14772 } else {
14773 text.push_str(new_text);
14774 cx.theme().status().created_background
14775 };
14776 let end = text.len();
14777
14778 highlights.push((
14779 start..end,
14780 HighlightStyle {
14781 background_color: Some(color),
14782 ..Default::default()
14783 },
14784 ));
14785 }
14786
14787 let edit_end = edits
14788 .last()
14789 .unwrap()
14790 .0
14791 .end
14792 .to_display_point(editor_snapshot);
14793 let end_of_line = DisplayPoint::new(edit_end.row(), editor_snapshot.line_len(edit_end.row()))
14794 .to_offset(editor_snapshot, Bias::Right);
14795 text.extend(
14796 editor_snapshot
14797 .buffer_snapshot
14798 .chunks(offset..end_of_line, false)
14799 .map(|chunk| chunk.text),
14800 );
14801
14802 InlineCompletionText::Edit {
14803 text: text.into(),
14804 highlights,
14805 }
14806}
14807
14808pub fn highlight_diagnostic_message(
14809 diagnostic: &Diagnostic,
14810 mut max_message_rows: Option<u8>,
14811) -> (SharedString, Vec<Range<usize>>) {
14812 let mut text_without_backticks = String::new();
14813 let mut code_ranges = Vec::new();
14814
14815 if let Some(source) = &diagnostic.source {
14816 text_without_backticks.push_str(source);
14817 code_ranges.push(0..source.len());
14818 text_without_backticks.push_str(": ");
14819 }
14820
14821 let mut prev_offset = 0;
14822 let mut in_code_block = false;
14823 let has_row_limit = max_message_rows.is_some();
14824 let mut newline_indices = diagnostic
14825 .message
14826 .match_indices('\n')
14827 .filter(|_| has_row_limit)
14828 .map(|(ix, _)| ix)
14829 .fuse()
14830 .peekable();
14831
14832 for (quote_ix, _) in diagnostic
14833 .message
14834 .match_indices('`')
14835 .chain([(diagnostic.message.len(), "")])
14836 {
14837 let mut first_newline_ix = None;
14838 let mut last_newline_ix = None;
14839 while let Some(newline_ix) = newline_indices.peek() {
14840 if *newline_ix < quote_ix {
14841 if first_newline_ix.is_none() {
14842 first_newline_ix = Some(*newline_ix);
14843 }
14844 last_newline_ix = Some(*newline_ix);
14845
14846 if let Some(rows_left) = &mut max_message_rows {
14847 if *rows_left == 0 {
14848 break;
14849 } else {
14850 *rows_left -= 1;
14851 }
14852 }
14853 let _ = newline_indices.next();
14854 } else {
14855 break;
14856 }
14857 }
14858 let prev_len = text_without_backticks.len();
14859 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14860 text_without_backticks.push_str(new_text);
14861 if in_code_block {
14862 code_ranges.push(prev_len..text_without_backticks.len());
14863 }
14864 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14865 in_code_block = !in_code_block;
14866 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14867 text_without_backticks.push_str("...");
14868 break;
14869 }
14870 }
14871
14872 (text_without_backticks.into(), code_ranges)
14873}
14874
14875fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14876 match severity {
14877 DiagnosticSeverity::ERROR => colors.error,
14878 DiagnosticSeverity::WARNING => colors.warning,
14879 DiagnosticSeverity::INFORMATION => colors.info,
14880 DiagnosticSeverity::HINT => colors.info,
14881 _ => colors.ignored,
14882 }
14883}
14884
14885pub fn styled_runs_for_code_label<'a>(
14886 label: &'a CodeLabel,
14887 syntax_theme: &'a theme::SyntaxTheme,
14888) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14889 let fade_out = HighlightStyle {
14890 fade_out: Some(0.35),
14891 ..Default::default()
14892 };
14893
14894 let mut prev_end = label.filter_range.end;
14895 label
14896 .runs
14897 .iter()
14898 .enumerate()
14899 .flat_map(move |(ix, (range, highlight_id))| {
14900 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14901 style
14902 } else {
14903 return Default::default();
14904 };
14905 let mut muted_style = style;
14906 muted_style.highlight(fade_out);
14907
14908 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14909 if range.start >= label.filter_range.end {
14910 if range.start > prev_end {
14911 runs.push((prev_end..range.start, fade_out));
14912 }
14913 runs.push((range.clone(), muted_style));
14914 } else if range.end <= label.filter_range.end {
14915 runs.push((range.clone(), style));
14916 } else {
14917 runs.push((range.start..label.filter_range.end, style));
14918 runs.push((label.filter_range.end..range.end, muted_style));
14919 }
14920 prev_end = cmp::max(prev_end, range.end);
14921
14922 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14923 runs.push((prev_end..label.text.len(), fade_out));
14924 }
14925
14926 runs
14927 })
14928}
14929
14930pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14931 let mut prev_index = 0;
14932 let mut prev_codepoint: Option<char> = None;
14933 text.char_indices()
14934 .chain([(text.len(), '\0')])
14935 .filter_map(move |(index, codepoint)| {
14936 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14937 let is_boundary = index == text.len()
14938 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14939 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14940 if is_boundary {
14941 let chunk = &text[prev_index..index];
14942 prev_index = index;
14943 Some(chunk)
14944 } else {
14945 None
14946 }
14947 })
14948}
14949
14950pub trait RangeToAnchorExt: Sized {
14951 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14952
14953 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14954 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14955 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14956 }
14957}
14958
14959impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14960 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14961 let start_offset = self.start.to_offset(snapshot);
14962 let end_offset = self.end.to_offset(snapshot);
14963 if start_offset == end_offset {
14964 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14965 } else {
14966 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14967 }
14968 }
14969}
14970
14971pub trait RowExt {
14972 fn as_f32(&self) -> f32;
14973
14974 fn next_row(&self) -> Self;
14975
14976 fn previous_row(&self) -> Self;
14977
14978 fn minus(&self, other: Self) -> u32;
14979}
14980
14981impl RowExt for DisplayRow {
14982 fn as_f32(&self) -> f32 {
14983 self.0 as f32
14984 }
14985
14986 fn next_row(&self) -> Self {
14987 Self(self.0 + 1)
14988 }
14989
14990 fn previous_row(&self) -> Self {
14991 Self(self.0.saturating_sub(1))
14992 }
14993
14994 fn minus(&self, other: Self) -> u32 {
14995 self.0 - other.0
14996 }
14997}
14998
14999impl RowExt for MultiBufferRow {
15000 fn as_f32(&self) -> f32 {
15001 self.0 as f32
15002 }
15003
15004 fn next_row(&self) -> Self {
15005 Self(self.0 + 1)
15006 }
15007
15008 fn previous_row(&self) -> Self {
15009 Self(self.0.saturating_sub(1))
15010 }
15011
15012 fn minus(&self, other: Self) -> u32 {
15013 self.0 - other.0
15014 }
15015}
15016
15017trait RowRangeExt {
15018 type Row;
15019
15020 fn len(&self) -> usize;
15021
15022 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
15023}
15024
15025impl RowRangeExt for Range<MultiBufferRow> {
15026 type Row = MultiBufferRow;
15027
15028 fn len(&self) -> usize {
15029 (self.end.0 - self.start.0) as usize
15030 }
15031
15032 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
15033 (self.start.0..self.end.0).map(MultiBufferRow)
15034 }
15035}
15036
15037impl RowRangeExt for Range<DisplayRow> {
15038 type Row = DisplayRow;
15039
15040 fn len(&self) -> usize {
15041 (self.end.0 - self.start.0) as usize
15042 }
15043
15044 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
15045 (self.start.0..self.end.0).map(DisplayRow)
15046 }
15047}
15048
15049fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
15050 if hunk.diff_base_byte_range.is_empty() {
15051 DiffHunkStatus::Added
15052 } else if hunk.row_range.is_empty() {
15053 DiffHunkStatus::Removed
15054 } else {
15055 DiffHunkStatus::Modified
15056 }
15057}
15058
15059/// If select range has more than one line, we
15060/// just point the cursor to range.start.
15061fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
15062 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
15063 range
15064 } else {
15065 range.start..range.start
15066 }
15067}
15068
15069pub struct KillRing(ClipboardItem);
15070impl Global for KillRing {}
15071
15072const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);