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::{FormatTrigger, LspFormatTarget, OpenLspBufferHandle},
133 project_settings::{GitGutterSetting, ProjectSettings},
134 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Location, LocationLink,
135 LspStore, PrepareRenameResponse, 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 enum FormatTarget {
990 Buffers,
991 Ranges(Vec<Range<MultiBufferPoint>>),
992}
993
994pub(crate) struct FocusedBlock {
995 id: BlockId,
996 focus_handle: WeakFocusHandle,
997}
998
999#[derive(Clone)]
1000enum JumpData {
1001 MultiBufferRow {
1002 row: MultiBufferRow,
1003 line_offset_from_top: u32,
1004 },
1005 MultiBufferPoint {
1006 excerpt_id: ExcerptId,
1007 position: Point,
1008 anchor: text::Anchor,
1009 line_offset_from_top: u32,
1010 },
1011}
1012
1013impl Editor {
1014 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1015 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1016 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1017 Self::new(
1018 EditorMode::SingleLine { auto_width: false },
1019 buffer,
1020 None,
1021 false,
1022 cx,
1023 )
1024 }
1025
1026 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1027 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1028 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1029 Self::new(EditorMode::Full, buffer, None, false, cx)
1030 }
1031
1032 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1033 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1034 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1035 Self::new(
1036 EditorMode::SingleLine { auto_width: true },
1037 buffer,
1038 None,
1039 false,
1040 cx,
1041 )
1042 }
1043
1044 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1045 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1046 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1047 Self::new(
1048 EditorMode::AutoHeight { max_lines },
1049 buffer,
1050 None,
1051 false,
1052 cx,
1053 )
1054 }
1055
1056 pub fn for_buffer(
1057 buffer: Model<Buffer>,
1058 project: Option<Model<Project>>,
1059 cx: &mut ViewContext<Self>,
1060 ) -> Self {
1061 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1062 Self::new(EditorMode::Full, buffer, project, false, cx)
1063 }
1064
1065 pub fn for_multibuffer(
1066 buffer: Model<MultiBuffer>,
1067 project: Option<Model<Project>>,
1068 show_excerpt_controls: bool,
1069 cx: &mut ViewContext<Self>,
1070 ) -> Self {
1071 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1072 }
1073
1074 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1075 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1076 let mut clone = Self::new(
1077 self.mode,
1078 self.buffer.clone(),
1079 self.project.clone(),
1080 show_excerpt_controls,
1081 cx,
1082 );
1083 self.display_map.update(cx, |display_map, cx| {
1084 let snapshot = display_map.snapshot(cx);
1085 clone.display_map.update(cx, |display_map, cx| {
1086 display_map.set_state(&snapshot, cx);
1087 });
1088 });
1089 clone.selections.clone_state(&self.selections);
1090 clone.scroll_manager.clone_state(&self.scroll_manager);
1091 clone.searchable = self.searchable;
1092 clone
1093 }
1094
1095 pub fn new(
1096 mode: EditorMode,
1097 buffer: Model<MultiBuffer>,
1098 project: Option<Model<Project>>,
1099 show_excerpt_controls: bool,
1100 cx: &mut ViewContext<Self>,
1101 ) -> Self {
1102 let style = cx.text_style();
1103 let font_size = style.font_size.to_pixels(cx.rem_size());
1104 let editor = cx.view().downgrade();
1105 let fold_placeholder = FoldPlaceholder {
1106 constrain_width: true,
1107 render: Arc::new(move |fold_id, fold_range, cx| {
1108 let editor = editor.clone();
1109 div()
1110 .id(fold_id)
1111 .bg(cx.theme().colors().ghost_element_background)
1112 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1113 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1114 .rounded_sm()
1115 .size_full()
1116 .cursor_pointer()
1117 .child("⋯")
1118 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1119 .on_click(move |_, cx| {
1120 editor
1121 .update(cx, |editor, cx| {
1122 editor.unfold_ranges(
1123 &[fold_range.start..fold_range.end],
1124 true,
1125 false,
1126 cx,
1127 );
1128 cx.stop_propagation();
1129 })
1130 .ok();
1131 })
1132 .into_any()
1133 }),
1134 merge_adjacent: true,
1135 ..Default::default()
1136 };
1137 let display_map = cx.new_model(|cx| {
1138 DisplayMap::new(
1139 buffer.clone(),
1140 style.font(),
1141 font_size,
1142 None,
1143 show_excerpt_controls,
1144 FILE_HEADER_HEIGHT,
1145 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1146 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1147 fold_placeholder,
1148 cx,
1149 )
1150 });
1151
1152 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1153
1154 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1155
1156 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1157 .then(|| language_settings::SoftWrap::None);
1158
1159 let mut project_subscriptions = Vec::new();
1160 if mode == EditorMode::Full {
1161 if let Some(project) = project.as_ref() {
1162 if buffer.read(cx).is_singleton() {
1163 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1164 cx.emit(EditorEvent::TitleChanged);
1165 }));
1166 }
1167 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1168 if let project::Event::RefreshInlayHints = event {
1169 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1170 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1171 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1172 let focus_handle = editor.focus_handle(cx);
1173 if focus_handle.is_focused(cx) {
1174 let snapshot = buffer.read(cx).snapshot();
1175 for (range, snippet) in snippet_edits {
1176 let editor_range =
1177 language::range_from_lsp(*range).to_offset(&snapshot);
1178 editor
1179 .insert_snippet(&[editor_range], snippet.clone(), cx)
1180 .ok();
1181 }
1182 }
1183 }
1184 }
1185 }));
1186 if let Some(task_inventory) = project
1187 .read(cx)
1188 .task_store()
1189 .read(cx)
1190 .task_inventory()
1191 .cloned()
1192 {
1193 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1194 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1195 }));
1196 }
1197 }
1198 }
1199
1200 let buffer_snapshot = buffer.read(cx).snapshot(cx);
1201
1202 let inlay_hint_settings =
1203 inlay_hint_settings(selections.newest_anchor().head(), &buffer_snapshot, cx);
1204 let focus_handle = cx.focus_handle();
1205 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1206 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1207 .detach();
1208 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1209 .detach();
1210 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1211
1212 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1213 Some(false)
1214 } else {
1215 None
1216 };
1217
1218 let mut code_action_providers = Vec::new();
1219 if let Some(project) = project.clone() {
1220 get_unstaged_changes_for_buffers(&project, buffer.read(cx).all_buffers(), cx);
1221 code_action_providers.push(Rc::new(project) as Rc<_>);
1222 }
1223
1224 let mut this = Self {
1225 focus_handle,
1226 show_cursor_when_unfocused: false,
1227 last_focused_descendant: None,
1228 buffer: buffer.clone(),
1229 display_map: display_map.clone(),
1230 selections,
1231 scroll_manager: ScrollManager::new(cx),
1232 columnar_selection_tail: None,
1233 add_selections_state: None,
1234 select_next_state: None,
1235 select_prev_state: None,
1236 selection_history: Default::default(),
1237 autoclose_regions: Default::default(),
1238 snippet_stack: Default::default(),
1239 select_larger_syntax_node_stack: Vec::new(),
1240 ime_transaction: Default::default(),
1241 active_diagnostics: None,
1242 soft_wrap_mode_override,
1243 completion_provider: project.clone().map(|project| Box::new(project) as _),
1244 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1245 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1246 project,
1247 blink_manager: blink_manager.clone(),
1248 show_local_selections: true,
1249 show_scrollbars: true,
1250 mode,
1251 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1252 show_gutter: mode == EditorMode::Full,
1253 show_line_numbers: None,
1254 use_relative_line_numbers: None,
1255 show_git_diff_gutter: None,
1256 show_code_actions: None,
1257 show_runnables: None,
1258 show_wrap_guides: None,
1259 show_indent_guides,
1260 placeholder_text: None,
1261 highlight_order: 0,
1262 highlighted_rows: HashMap::default(),
1263 background_highlights: Default::default(),
1264 gutter_highlights: TreeMap::default(),
1265 scrollbar_marker_state: ScrollbarMarkerState::default(),
1266 active_indent_guides_state: ActiveIndentGuidesState::default(),
1267 nav_history: None,
1268 context_menu: RefCell::new(None),
1269 mouse_context_menu: None,
1270 hunk_controls_menu_handle: PopoverMenuHandle::default(),
1271 completion_tasks: Default::default(),
1272 signature_help_state: SignatureHelpState::default(),
1273 auto_signature_help: None,
1274 find_all_references_task_sources: Vec::new(),
1275 next_completion_id: 0,
1276 next_inlay_id: 0,
1277 code_action_providers,
1278 available_code_actions: Default::default(),
1279 code_actions_task: Default::default(),
1280 document_highlights_task: Default::default(),
1281 linked_editing_range_task: Default::default(),
1282 pending_rename: Default::default(),
1283 searchable: true,
1284 cursor_shape: EditorSettings::get_global(cx)
1285 .cursor_shape
1286 .unwrap_or_default(),
1287 current_line_highlight: None,
1288 autoindent_mode: Some(AutoindentMode::EachLine),
1289 collapse_matches: false,
1290 workspace: None,
1291 input_enabled: true,
1292 use_modal_editing: mode == EditorMode::Full,
1293 read_only: false,
1294 use_autoclose: true,
1295 use_auto_surround: true,
1296 auto_replace_emoji_shortcode: false,
1297 leader_peer_id: None,
1298 remote_id: None,
1299 hover_state: Default::default(),
1300 hovered_link_state: Default::default(),
1301 inline_completion_provider: None,
1302 active_inline_completion: None,
1303 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1304 diff_map: DiffMap::default(),
1305 gutter_hovered: false,
1306 pixel_position_of_newest_cursor: None,
1307 last_bounds: None,
1308 expect_bounds_change: None,
1309 gutter_dimensions: GutterDimensions::default(),
1310 style: None,
1311 show_cursor_names: false,
1312 hovered_cursors: Default::default(),
1313 next_editor_action_id: EditorActionId::default(),
1314 editor_actions: Rc::default(),
1315 show_inline_completions_override: None,
1316 enable_inline_completions: true,
1317 custom_context_menu: None,
1318 show_git_blame_gutter: false,
1319 show_git_blame_inline: false,
1320 show_selection_menu: None,
1321 show_git_blame_inline_delay_task: None,
1322 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1323 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1324 .session
1325 .restore_unsaved_buffers,
1326 blame: None,
1327 blame_subscription: None,
1328 tasks: Default::default(),
1329 _subscriptions: vec![
1330 cx.observe(&buffer, Self::on_buffer_changed),
1331 cx.subscribe(&buffer, Self::on_buffer_event),
1332 cx.observe(&display_map, Self::on_display_map_changed),
1333 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1334 cx.observe_global::<SettingsStore>(Self::settings_changed),
1335 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1336 cx.observe_window_activation(|editor, cx| {
1337 let active = cx.is_window_active();
1338 editor.blink_manager.update(cx, |blink_manager, cx| {
1339 if active {
1340 blink_manager.enable(cx);
1341 } else {
1342 blink_manager.disable(cx);
1343 }
1344 });
1345 }),
1346 ],
1347 tasks_update_task: None,
1348 linked_edit_ranges: Default::default(),
1349 previous_search_ranges: None,
1350 breadcrumb_header: None,
1351 focused_block: None,
1352 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
1353 addons: HashMap::default(),
1354 registered_buffers: HashMap::default(),
1355 _scroll_cursor_center_top_bottom_task: Task::ready(()),
1356 toggle_fold_multiple_buffers: Task::ready(()),
1357 text_style_refinement: None,
1358 };
1359 this.tasks_update_task = Some(this.refresh_runnables(cx));
1360 this._subscriptions.extend(project_subscriptions);
1361
1362 this.end_selection(cx);
1363 this.scroll_manager.show_scrollbar(cx);
1364
1365 if mode == EditorMode::Full {
1366 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1367 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1368
1369 if this.git_blame_inline_enabled {
1370 this.git_blame_inline_enabled = true;
1371 this.start_git_blame_inline(false, cx);
1372 }
1373
1374 if let Some(buffer) = buffer.read(cx).as_singleton() {
1375 if let Some(project) = this.project.as_ref() {
1376 let lsp_store = project.read(cx).lsp_store();
1377 let handle = lsp_store.update(cx, |lsp_store, cx| {
1378 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1379 });
1380 this.registered_buffers
1381 .insert(buffer.read(cx).remote_id(), handle);
1382 }
1383 }
1384 }
1385
1386 this.report_editor_event("Editor Opened", None, cx);
1387 this
1388 }
1389
1390 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
1391 self.mouse_context_menu
1392 .as_ref()
1393 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1394 }
1395
1396 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
1397 let mut key_context = KeyContext::new_with_defaults();
1398 key_context.add("Editor");
1399 let mode = match self.mode {
1400 EditorMode::SingleLine { .. } => "single_line",
1401 EditorMode::AutoHeight { .. } => "auto_height",
1402 EditorMode::Full => "full",
1403 };
1404
1405 if EditorSettings::jupyter_enabled(cx) {
1406 key_context.add("jupyter");
1407 }
1408
1409 key_context.set("mode", mode);
1410 if self.pending_rename.is_some() {
1411 key_context.add("renaming");
1412 }
1413 match self.context_menu.borrow().as_ref() {
1414 Some(CodeContextMenu::Completions(_)) => {
1415 key_context.add("menu");
1416 key_context.add("showing_completions")
1417 }
1418 Some(CodeContextMenu::CodeActions(_)) => {
1419 key_context.add("menu");
1420 key_context.add("showing_code_actions")
1421 }
1422 None => {}
1423 }
1424
1425 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
1426 if !self.focus_handle(cx).contains_focused(cx)
1427 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
1428 {
1429 for addon in self.addons.values() {
1430 addon.extend_key_context(&mut key_context, cx)
1431 }
1432 }
1433
1434 if let Some(extension) = self
1435 .buffer
1436 .read(cx)
1437 .as_singleton()
1438 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1439 {
1440 key_context.set("extension", extension.to_string());
1441 }
1442
1443 if self.has_active_inline_completion() {
1444 key_context.add("copilot_suggestion");
1445 key_context.add("inline_completion");
1446 }
1447
1448 if !self
1449 .selections
1450 .disjoint
1451 .iter()
1452 .all(|selection| selection.start == selection.end)
1453 {
1454 key_context.add("selection");
1455 }
1456
1457 key_context
1458 }
1459
1460 pub fn new_file(
1461 workspace: &mut Workspace,
1462 _: &workspace::NewFile,
1463 cx: &mut ViewContext<Workspace>,
1464 ) {
1465 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
1466 "Failed to create buffer",
1467 cx,
1468 |e, _| match e.error_code() {
1469 ErrorCode::RemoteUpgradeRequired => Some(format!(
1470 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1471 e.error_tag("required").unwrap_or("the latest version")
1472 )),
1473 _ => None,
1474 },
1475 );
1476 }
1477
1478 pub fn new_in_workspace(
1479 workspace: &mut Workspace,
1480 cx: &mut ViewContext<Workspace>,
1481 ) -> Task<Result<View<Editor>>> {
1482 let project = workspace.project().clone();
1483 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1484
1485 cx.spawn(|workspace, mut cx| async move {
1486 let buffer = create.await?;
1487 workspace.update(&mut cx, |workspace, cx| {
1488 let editor =
1489 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
1490 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
1491 editor
1492 })
1493 })
1494 }
1495
1496 fn new_file_vertical(
1497 workspace: &mut Workspace,
1498 _: &workspace::NewFileSplitVertical,
1499 cx: &mut ViewContext<Workspace>,
1500 ) {
1501 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
1502 }
1503
1504 fn new_file_horizontal(
1505 workspace: &mut Workspace,
1506 _: &workspace::NewFileSplitHorizontal,
1507 cx: &mut ViewContext<Workspace>,
1508 ) {
1509 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
1510 }
1511
1512 fn new_file_in_direction(
1513 workspace: &mut Workspace,
1514 direction: SplitDirection,
1515 cx: &mut ViewContext<Workspace>,
1516 ) {
1517 let project = workspace.project().clone();
1518 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1519
1520 cx.spawn(|workspace, mut cx| async move {
1521 let buffer = create.await?;
1522 workspace.update(&mut cx, move |workspace, cx| {
1523 workspace.split_item(
1524 direction,
1525 Box::new(
1526 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1527 ),
1528 cx,
1529 )
1530 })?;
1531 anyhow::Ok(())
1532 })
1533 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1534 ErrorCode::RemoteUpgradeRequired => Some(format!(
1535 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1536 e.error_tag("required").unwrap_or("the latest version")
1537 )),
1538 _ => None,
1539 });
1540 }
1541
1542 pub fn leader_peer_id(&self) -> Option<PeerId> {
1543 self.leader_peer_id
1544 }
1545
1546 pub fn buffer(&self) -> &Model<MultiBuffer> {
1547 &self.buffer
1548 }
1549
1550 pub fn workspace(&self) -> Option<View<Workspace>> {
1551 self.workspace.as_ref()?.0.upgrade()
1552 }
1553
1554 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1555 self.buffer().read(cx).title(cx)
1556 }
1557
1558 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1559 let git_blame_gutter_max_author_length = self
1560 .render_git_blame_gutter(cx)
1561 .then(|| {
1562 if let Some(blame) = self.blame.as_ref() {
1563 let max_author_length =
1564 blame.update(cx, |blame, cx| blame.max_author_length(cx));
1565 Some(max_author_length)
1566 } else {
1567 None
1568 }
1569 })
1570 .flatten();
1571
1572 EditorSnapshot {
1573 mode: self.mode,
1574 show_gutter: self.show_gutter,
1575 show_line_numbers: self.show_line_numbers,
1576 show_git_diff_gutter: self.show_git_diff_gutter,
1577 show_code_actions: self.show_code_actions,
1578 show_runnables: self.show_runnables,
1579 git_blame_gutter_max_author_length,
1580 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1581 scroll_anchor: self.scroll_manager.anchor(),
1582 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1583 placeholder_text: self.placeholder_text.clone(),
1584 diff_map: self.diff_map.snapshot(),
1585 is_focused: self.focus_handle.is_focused(cx),
1586 current_line_highlight: self
1587 .current_line_highlight
1588 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
1589 gutter_hovered: self.gutter_hovered,
1590 }
1591 }
1592
1593 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1594 self.buffer.read(cx).language_at(point, cx)
1595 }
1596
1597 pub fn file_at<T: ToOffset>(
1598 &self,
1599 point: T,
1600 cx: &AppContext,
1601 ) -> Option<Arc<dyn language::File>> {
1602 self.buffer.read(cx).read(cx).file_at(point).cloned()
1603 }
1604
1605 pub fn active_excerpt(
1606 &self,
1607 cx: &AppContext,
1608 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1609 self.buffer
1610 .read(cx)
1611 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1612 }
1613
1614 pub fn mode(&self) -> EditorMode {
1615 self.mode
1616 }
1617
1618 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1619 self.collaboration_hub.as_deref()
1620 }
1621
1622 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1623 self.collaboration_hub = Some(hub);
1624 }
1625
1626 pub fn set_custom_context_menu(
1627 &mut self,
1628 f: impl 'static
1629 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1630 ) {
1631 self.custom_context_menu = Some(Box::new(f))
1632 }
1633
1634 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
1635 self.completion_provider = provider;
1636 }
1637
1638 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
1639 self.semantics_provider.clone()
1640 }
1641
1642 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
1643 self.semantics_provider = provider;
1644 }
1645
1646 pub fn set_inline_completion_provider<T>(
1647 &mut self,
1648 provider: Option<Model<T>>,
1649 cx: &mut ViewContext<Self>,
1650 ) where
1651 T: InlineCompletionProvider,
1652 {
1653 self.inline_completion_provider =
1654 provider.map(|provider| RegisteredInlineCompletionProvider {
1655 _subscription: cx.observe(&provider, |this, _, cx| {
1656 if this.focus_handle.is_focused(cx) {
1657 this.update_visible_inline_completion(cx);
1658 }
1659 }),
1660 provider: Arc::new(provider),
1661 });
1662 self.refresh_inline_completion(false, false, cx);
1663 }
1664
1665 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
1666 self.placeholder_text.as_deref()
1667 }
1668
1669 pub fn set_placeholder_text(
1670 &mut self,
1671 placeholder_text: impl Into<Arc<str>>,
1672 cx: &mut ViewContext<Self>,
1673 ) {
1674 let placeholder_text = Some(placeholder_text.into());
1675 if self.placeholder_text != placeholder_text {
1676 self.placeholder_text = placeholder_text;
1677 cx.notify();
1678 }
1679 }
1680
1681 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1682 self.cursor_shape = cursor_shape;
1683
1684 // Disrupt blink for immediate user feedback that the cursor shape has changed
1685 self.blink_manager.update(cx, BlinkManager::show_cursor);
1686
1687 cx.notify();
1688 }
1689
1690 pub fn set_current_line_highlight(
1691 &mut self,
1692 current_line_highlight: Option<CurrentLineHighlight>,
1693 ) {
1694 self.current_line_highlight = current_line_highlight;
1695 }
1696
1697 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1698 self.collapse_matches = collapse_matches;
1699 }
1700
1701 pub fn register_buffers_with_language_servers(&mut self, cx: &mut ViewContext<Self>) {
1702 let buffers = self.buffer.read(cx).all_buffers();
1703 let Some(lsp_store) = self.lsp_store(cx) else {
1704 return;
1705 };
1706 lsp_store.update(cx, |lsp_store, cx| {
1707 for buffer in buffers {
1708 self.registered_buffers
1709 .entry(buffer.read(cx).remote_id())
1710 .or_insert_with(|| {
1711 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1712 });
1713 }
1714 })
1715 }
1716
1717 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1718 if self.collapse_matches {
1719 return range.start..range.start;
1720 }
1721 range.clone()
1722 }
1723
1724 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1725 if self.display_map.read(cx).clip_at_line_ends != clip {
1726 self.display_map
1727 .update(cx, |map, _| map.clip_at_line_ends = clip);
1728 }
1729 }
1730
1731 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1732 self.input_enabled = input_enabled;
1733 }
1734
1735 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
1736 self.enable_inline_completions = enabled;
1737 }
1738
1739 pub fn set_autoindent(&mut self, autoindent: bool) {
1740 if autoindent {
1741 self.autoindent_mode = Some(AutoindentMode::EachLine);
1742 } else {
1743 self.autoindent_mode = None;
1744 }
1745 }
1746
1747 pub fn read_only(&self, cx: &AppContext) -> bool {
1748 self.read_only || self.buffer.read(cx).read_only()
1749 }
1750
1751 pub fn set_read_only(&mut self, read_only: bool) {
1752 self.read_only = read_only;
1753 }
1754
1755 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1756 self.use_autoclose = autoclose;
1757 }
1758
1759 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
1760 self.use_auto_surround = auto_surround;
1761 }
1762
1763 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1764 self.auto_replace_emoji_shortcode = auto_replace;
1765 }
1766
1767 pub fn toggle_inline_completions(
1768 &mut self,
1769 _: &ToggleInlineCompletions,
1770 cx: &mut ViewContext<Self>,
1771 ) {
1772 if self.show_inline_completions_override.is_some() {
1773 self.set_show_inline_completions(None, cx);
1774 } else {
1775 let cursor = self.selections.newest_anchor().head();
1776 if let Some((buffer, cursor_buffer_position)) =
1777 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1778 {
1779 let show_inline_completions =
1780 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
1781 self.set_show_inline_completions(Some(show_inline_completions), cx);
1782 }
1783 }
1784 }
1785
1786 pub fn set_show_inline_completions(
1787 &mut self,
1788 show_inline_completions: Option<bool>,
1789 cx: &mut ViewContext<Self>,
1790 ) {
1791 self.show_inline_completions_override = show_inline_completions;
1792 self.refresh_inline_completion(false, true, cx);
1793 }
1794
1795 pub fn inline_completions_enabled(&self, cx: &AppContext) -> bool {
1796 let cursor = self.selections.newest_anchor().head();
1797 if let Some((buffer, buffer_position)) =
1798 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1799 {
1800 self.should_show_inline_completions(&buffer, buffer_position, cx)
1801 } else {
1802 false
1803 }
1804 }
1805
1806 fn should_show_inline_completions(
1807 &self,
1808 buffer: &Model<Buffer>,
1809 buffer_position: language::Anchor,
1810 cx: &AppContext,
1811 ) -> bool {
1812 if !self.snippet_stack.is_empty() {
1813 return false;
1814 }
1815
1816 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
1817 return false;
1818 }
1819
1820 if let Some(provider) = self.inline_completion_provider() {
1821 if let Some(show_inline_completions) = self.show_inline_completions_override {
1822 show_inline_completions
1823 } else {
1824 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
1825 }
1826 } else {
1827 false
1828 }
1829 }
1830
1831 fn inline_completions_disabled_in_scope(
1832 &self,
1833 buffer: &Model<Buffer>,
1834 buffer_position: language::Anchor,
1835 cx: &AppContext,
1836 ) -> bool {
1837 let snapshot = buffer.read(cx).snapshot();
1838 let settings = snapshot.settings_at(buffer_position, cx);
1839
1840 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
1841 return false;
1842 };
1843
1844 scope.override_name().map_or(false, |scope_name| {
1845 settings
1846 .inline_completions_disabled_in
1847 .iter()
1848 .any(|s| s == scope_name)
1849 })
1850 }
1851
1852 pub fn set_use_modal_editing(&mut self, to: bool) {
1853 self.use_modal_editing = to;
1854 }
1855
1856 pub fn use_modal_editing(&self) -> bool {
1857 self.use_modal_editing
1858 }
1859
1860 fn selections_did_change(
1861 &mut self,
1862 local: bool,
1863 old_cursor_position: &Anchor,
1864 show_completions: bool,
1865 cx: &mut ViewContext<Self>,
1866 ) {
1867 cx.invalidate_character_coordinates();
1868
1869 // Copy selections to primary selection buffer
1870 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1871 if local {
1872 let selections = self.selections.all::<usize>(cx);
1873 let buffer_handle = self.buffer.read(cx).read(cx);
1874
1875 let mut text = String::new();
1876 for (index, selection) in selections.iter().enumerate() {
1877 let text_for_selection = buffer_handle
1878 .text_for_range(selection.start..selection.end)
1879 .collect::<String>();
1880
1881 text.push_str(&text_for_selection);
1882 if index != selections.len() - 1 {
1883 text.push('\n');
1884 }
1885 }
1886
1887 if !text.is_empty() {
1888 cx.write_to_primary(ClipboardItem::new_string(text));
1889 }
1890 }
1891
1892 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1893 self.buffer.update(cx, |buffer, cx| {
1894 buffer.set_active_selections(
1895 &self.selections.disjoint_anchors(),
1896 self.selections.line_mode,
1897 self.cursor_shape,
1898 cx,
1899 )
1900 });
1901 }
1902 let display_map = self
1903 .display_map
1904 .update(cx, |display_map, cx| display_map.snapshot(cx));
1905 let buffer = &display_map.buffer_snapshot;
1906 self.add_selections_state = None;
1907 self.select_next_state = None;
1908 self.select_prev_state = None;
1909 self.select_larger_syntax_node_stack.clear();
1910 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1911 self.snippet_stack
1912 .invalidate(&self.selections.disjoint_anchors(), buffer);
1913 self.take_rename(false, cx);
1914
1915 let new_cursor_position = self.selections.newest_anchor().head();
1916
1917 self.push_to_nav_history(
1918 *old_cursor_position,
1919 Some(new_cursor_position.to_point(buffer)),
1920 cx,
1921 );
1922
1923 if local {
1924 let new_cursor_position = self.selections.newest_anchor().head();
1925 let mut context_menu = self.context_menu.borrow_mut();
1926 let completion_menu = match context_menu.as_ref() {
1927 Some(CodeContextMenu::Completions(menu)) => Some(menu),
1928 _ => {
1929 *context_menu = None;
1930 None
1931 }
1932 };
1933
1934 if let Some(completion_menu) = completion_menu {
1935 let cursor_position = new_cursor_position.to_offset(buffer);
1936 let (word_range, kind) =
1937 buffer.surrounding_word(completion_menu.initial_position, true);
1938 if kind == Some(CharKind::Word)
1939 && word_range.to_inclusive().contains(&cursor_position)
1940 {
1941 let mut completion_menu = completion_menu.clone();
1942 drop(context_menu);
1943
1944 let query = Self::completion_query(buffer, cursor_position);
1945 cx.spawn(move |this, mut cx| async move {
1946 completion_menu
1947 .filter(query.as_deref(), cx.background_executor().clone())
1948 .await;
1949
1950 this.update(&mut cx, |this, cx| {
1951 let mut context_menu = this.context_menu.borrow_mut();
1952 let Some(CodeContextMenu::Completions(menu)) = context_menu.as_ref()
1953 else {
1954 return;
1955 };
1956
1957 if menu.id > completion_menu.id {
1958 return;
1959 }
1960
1961 *context_menu = Some(CodeContextMenu::Completions(completion_menu));
1962 drop(context_menu);
1963 cx.notify();
1964 })
1965 })
1966 .detach();
1967
1968 if show_completions {
1969 self.show_completions(&ShowCompletions { trigger: None }, cx);
1970 }
1971 } else {
1972 drop(context_menu);
1973 self.hide_context_menu(cx);
1974 }
1975 } else {
1976 drop(context_menu);
1977 }
1978
1979 hide_hover(self, cx);
1980
1981 if old_cursor_position.to_display_point(&display_map).row()
1982 != new_cursor_position.to_display_point(&display_map).row()
1983 {
1984 self.available_code_actions.take();
1985 }
1986 self.refresh_code_actions(cx);
1987 self.refresh_document_highlights(cx);
1988 refresh_matching_bracket_highlights(self, cx);
1989 self.update_visible_inline_completion(cx);
1990 linked_editing_ranges::refresh_linked_ranges(self, cx);
1991 if self.git_blame_inline_enabled {
1992 self.start_inline_blame_timer(cx);
1993 }
1994 }
1995
1996 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1997 cx.emit(EditorEvent::SelectionsChanged { local });
1998
1999 if self.selections.disjoint_anchors().len() == 1 {
2000 cx.emit(SearchEvent::ActiveMatchChanged)
2001 }
2002 cx.notify();
2003 }
2004
2005 pub fn change_selections<R>(
2006 &mut self,
2007 autoscroll: Option<Autoscroll>,
2008 cx: &mut ViewContext<Self>,
2009 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2010 ) -> R {
2011 self.change_selections_inner(autoscroll, true, cx, change)
2012 }
2013
2014 pub fn change_selections_inner<R>(
2015 &mut self,
2016 autoscroll: Option<Autoscroll>,
2017 request_completions: bool,
2018 cx: &mut ViewContext<Self>,
2019 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2020 ) -> R {
2021 let old_cursor_position = self.selections.newest_anchor().head();
2022 self.push_to_selection_history();
2023
2024 let (changed, result) = self.selections.change_with(cx, change);
2025
2026 if changed {
2027 if let Some(autoscroll) = autoscroll {
2028 self.request_autoscroll(autoscroll, cx);
2029 }
2030 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2031
2032 if self.should_open_signature_help_automatically(
2033 &old_cursor_position,
2034 self.signature_help_state.backspace_pressed(),
2035 cx,
2036 ) {
2037 self.show_signature_help(&ShowSignatureHelp, cx);
2038 }
2039 self.signature_help_state.set_backspace_pressed(false);
2040 }
2041
2042 result
2043 }
2044
2045 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2046 where
2047 I: IntoIterator<Item = (Range<S>, T)>,
2048 S: ToOffset,
2049 T: Into<Arc<str>>,
2050 {
2051 if self.read_only(cx) {
2052 return;
2053 }
2054
2055 self.buffer
2056 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2057 }
2058
2059 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2060 where
2061 I: IntoIterator<Item = (Range<S>, T)>,
2062 S: ToOffset,
2063 T: Into<Arc<str>>,
2064 {
2065 if self.read_only(cx) {
2066 return;
2067 }
2068
2069 self.buffer.update(cx, |buffer, cx| {
2070 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2071 });
2072 }
2073
2074 pub fn edit_with_block_indent<I, S, T>(
2075 &mut self,
2076 edits: I,
2077 original_indent_columns: Vec<u32>,
2078 cx: &mut ViewContext<Self>,
2079 ) where
2080 I: IntoIterator<Item = (Range<S>, T)>,
2081 S: ToOffset,
2082 T: Into<Arc<str>>,
2083 {
2084 if self.read_only(cx) {
2085 return;
2086 }
2087
2088 self.buffer.update(cx, |buffer, cx| {
2089 buffer.edit(
2090 edits,
2091 Some(AutoindentMode::Block {
2092 original_indent_columns,
2093 }),
2094 cx,
2095 )
2096 });
2097 }
2098
2099 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2100 self.hide_context_menu(cx);
2101
2102 match phase {
2103 SelectPhase::Begin {
2104 position,
2105 add,
2106 click_count,
2107 } => self.begin_selection(position, add, click_count, cx),
2108 SelectPhase::BeginColumnar {
2109 position,
2110 goal_column,
2111 reset,
2112 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2113 SelectPhase::Extend {
2114 position,
2115 click_count,
2116 } => self.extend_selection(position, click_count, cx),
2117 SelectPhase::Update {
2118 position,
2119 goal_column,
2120 scroll_delta,
2121 } => self.update_selection(position, goal_column, scroll_delta, cx),
2122 SelectPhase::End => self.end_selection(cx),
2123 }
2124 }
2125
2126 fn extend_selection(
2127 &mut self,
2128 position: DisplayPoint,
2129 click_count: usize,
2130 cx: &mut ViewContext<Self>,
2131 ) {
2132 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2133 let tail = self.selections.newest::<usize>(cx).tail();
2134 self.begin_selection(position, false, click_count, cx);
2135
2136 let position = position.to_offset(&display_map, Bias::Left);
2137 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2138
2139 let mut pending_selection = self
2140 .selections
2141 .pending_anchor()
2142 .expect("extend_selection not called with pending selection");
2143 if position >= tail {
2144 pending_selection.start = tail_anchor;
2145 } else {
2146 pending_selection.end = tail_anchor;
2147 pending_selection.reversed = true;
2148 }
2149
2150 let mut pending_mode = self.selections.pending_mode().unwrap();
2151 match &mut pending_mode {
2152 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2153 _ => {}
2154 }
2155
2156 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2157 s.set_pending(pending_selection, pending_mode)
2158 });
2159 }
2160
2161 fn begin_selection(
2162 &mut self,
2163 position: DisplayPoint,
2164 add: bool,
2165 click_count: usize,
2166 cx: &mut ViewContext<Self>,
2167 ) {
2168 if !self.focus_handle.is_focused(cx) {
2169 self.last_focused_descendant = None;
2170 cx.focus(&self.focus_handle);
2171 }
2172
2173 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2174 let buffer = &display_map.buffer_snapshot;
2175 let newest_selection = self.selections.newest_anchor().clone();
2176 let position = display_map.clip_point(position, Bias::Left);
2177
2178 let start;
2179 let end;
2180 let mode;
2181 let mut auto_scroll;
2182 match click_count {
2183 1 => {
2184 start = buffer.anchor_before(position.to_point(&display_map));
2185 end = start;
2186 mode = SelectMode::Character;
2187 auto_scroll = true;
2188 }
2189 2 => {
2190 let range = movement::surrounding_word(&display_map, position);
2191 start = buffer.anchor_before(range.start.to_point(&display_map));
2192 end = buffer.anchor_before(range.end.to_point(&display_map));
2193 mode = SelectMode::Word(start..end);
2194 auto_scroll = true;
2195 }
2196 3 => {
2197 let position = display_map
2198 .clip_point(position, Bias::Left)
2199 .to_point(&display_map);
2200 let line_start = display_map.prev_line_boundary(position).0;
2201 let next_line_start = buffer.clip_point(
2202 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2203 Bias::Left,
2204 );
2205 start = buffer.anchor_before(line_start);
2206 end = buffer.anchor_before(next_line_start);
2207 mode = SelectMode::Line(start..end);
2208 auto_scroll = true;
2209 }
2210 _ => {
2211 start = buffer.anchor_before(0);
2212 end = buffer.anchor_before(buffer.len());
2213 mode = SelectMode::All;
2214 auto_scroll = false;
2215 }
2216 }
2217 auto_scroll &= EditorSettings::get_global(cx).autoscroll_on_clicks;
2218
2219 let point_to_delete: Option<usize> = {
2220 let selected_points: Vec<Selection<Point>> =
2221 self.selections.disjoint_in_range(start..end, cx);
2222
2223 if !add || click_count > 1 {
2224 None
2225 } else if !selected_points.is_empty() {
2226 Some(selected_points[0].id)
2227 } else {
2228 let clicked_point_already_selected =
2229 self.selections.disjoint.iter().find(|selection| {
2230 selection.start.to_point(buffer) == start.to_point(buffer)
2231 || selection.end.to_point(buffer) == end.to_point(buffer)
2232 });
2233
2234 clicked_point_already_selected.map(|selection| selection.id)
2235 }
2236 };
2237
2238 let selections_count = self.selections.count();
2239
2240 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2241 if let Some(point_to_delete) = point_to_delete {
2242 s.delete(point_to_delete);
2243
2244 if selections_count == 1 {
2245 s.set_pending_anchor_range(start..end, mode);
2246 }
2247 } else {
2248 if !add {
2249 s.clear_disjoint();
2250 } else if click_count > 1 {
2251 s.delete(newest_selection.id)
2252 }
2253
2254 s.set_pending_anchor_range(start..end, mode);
2255 }
2256 });
2257 }
2258
2259 fn begin_columnar_selection(
2260 &mut self,
2261 position: DisplayPoint,
2262 goal_column: u32,
2263 reset: bool,
2264 cx: &mut ViewContext<Self>,
2265 ) {
2266 if !self.focus_handle.is_focused(cx) {
2267 self.last_focused_descendant = None;
2268 cx.focus(&self.focus_handle);
2269 }
2270
2271 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2272
2273 if reset {
2274 let pointer_position = display_map
2275 .buffer_snapshot
2276 .anchor_before(position.to_point(&display_map));
2277
2278 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2279 s.clear_disjoint();
2280 s.set_pending_anchor_range(
2281 pointer_position..pointer_position,
2282 SelectMode::Character,
2283 );
2284 });
2285 }
2286
2287 let tail = self.selections.newest::<Point>(cx).tail();
2288 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2289
2290 if !reset {
2291 self.select_columns(
2292 tail.to_display_point(&display_map),
2293 position,
2294 goal_column,
2295 &display_map,
2296 cx,
2297 );
2298 }
2299 }
2300
2301 fn update_selection(
2302 &mut self,
2303 position: DisplayPoint,
2304 goal_column: u32,
2305 scroll_delta: gpui::Point<f32>,
2306 cx: &mut ViewContext<Self>,
2307 ) {
2308 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2309
2310 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2311 let tail = tail.to_display_point(&display_map);
2312 self.select_columns(tail, position, goal_column, &display_map, cx);
2313 } else if let Some(mut pending) = self.selections.pending_anchor() {
2314 let buffer = self.buffer.read(cx).snapshot(cx);
2315 let head;
2316 let tail;
2317 let mode = self.selections.pending_mode().unwrap();
2318 match &mode {
2319 SelectMode::Character => {
2320 head = position.to_point(&display_map);
2321 tail = pending.tail().to_point(&buffer);
2322 }
2323 SelectMode::Word(original_range) => {
2324 let original_display_range = original_range.start.to_display_point(&display_map)
2325 ..original_range.end.to_display_point(&display_map);
2326 let original_buffer_range = original_display_range.start.to_point(&display_map)
2327 ..original_display_range.end.to_point(&display_map);
2328 if movement::is_inside_word(&display_map, position)
2329 || original_display_range.contains(&position)
2330 {
2331 let word_range = movement::surrounding_word(&display_map, position);
2332 if word_range.start < original_display_range.start {
2333 head = word_range.start.to_point(&display_map);
2334 } else {
2335 head = word_range.end.to_point(&display_map);
2336 }
2337 } else {
2338 head = position.to_point(&display_map);
2339 }
2340
2341 if head <= original_buffer_range.start {
2342 tail = original_buffer_range.end;
2343 } else {
2344 tail = original_buffer_range.start;
2345 }
2346 }
2347 SelectMode::Line(original_range) => {
2348 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2349
2350 let position = display_map
2351 .clip_point(position, Bias::Left)
2352 .to_point(&display_map);
2353 let line_start = display_map.prev_line_boundary(position).0;
2354 let next_line_start = buffer.clip_point(
2355 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2356 Bias::Left,
2357 );
2358
2359 if line_start < original_range.start {
2360 head = line_start
2361 } else {
2362 head = next_line_start
2363 }
2364
2365 if head <= original_range.start {
2366 tail = original_range.end;
2367 } else {
2368 tail = original_range.start;
2369 }
2370 }
2371 SelectMode::All => {
2372 return;
2373 }
2374 };
2375
2376 if head < tail {
2377 pending.start = buffer.anchor_before(head);
2378 pending.end = buffer.anchor_before(tail);
2379 pending.reversed = true;
2380 } else {
2381 pending.start = buffer.anchor_before(tail);
2382 pending.end = buffer.anchor_before(head);
2383 pending.reversed = false;
2384 }
2385
2386 self.change_selections(None, cx, |s| {
2387 s.set_pending(pending, mode);
2388 });
2389 } else {
2390 log::error!("update_selection dispatched with no pending selection");
2391 return;
2392 }
2393
2394 self.apply_scroll_delta(scroll_delta, cx);
2395 cx.notify();
2396 }
2397
2398 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2399 self.columnar_selection_tail.take();
2400 if self.selections.pending_anchor().is_some() {
2401 let selections = self.selections.all::<usize>(cx);
2402 self.change_selections(None, cx, |s| {
2403 s.select(selections);
2404 s.clear_pending();
2405 });
2406 }
2407 }
2408
2409 fn select_columns(
2410 &mut self,
2411 tail: DisplayPoint,
2412 head: DisplayPoint,
2413 goal_column: u32,
2414 display_map: &DisplaySnapshot,
2415 cx: &mut ViewContext<Self>,
2416 ) {
2417 let start_row = cmp::min(tail.row(), head.row());
2418 let end_row = cmp::max(tail.row(), head.row());
2419 let start_column = cmp::min(tail.column(), goal_column);
2420 let end_column = cmp::max(tail.column(), goal_column);
2421 let reversed = start_column < tail.column();
2422
2423 let selection_ranges = (start_row.0..=end_row.0)
2424 .map(DisplayRow)
2425 .filter_map(|row| {
2426 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2427 let start = display_map
2428 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2429 .to_point(display_map);
2430 let end = display_map
2431 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2432 .to_point(display_map);
2433 if reversed {
2434 Some(end..start)
2435 } else {
2436 Some(start..end)
2437 }
2438 } else {
2439 None
2440 }
2441 })
2442 .collect::<Vec<_>>();
2443
2444 self.change_selections(None, cx, |s| {
2445 s.select_ranges(selection_ranges);
2446 });
2447 cx.notify();
2448 }
2449
2450 pub fn has_pending_nonempty_selection(&self) -> bool {
2451 let pending_nonempty_selection = match self.selections.pending_anchor() {
2452 Some(Selection { start, end, .. }) => start != end,
2453 None => false,
2454 };
2455
2456 pending_nonempty_selection
2457 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2458 }
2459
2460 pub fn has_pending_selection(&self) -> bool {
2461 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2462 }
2463
2464 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2465 if self.clear_expanded_diff_hunks(cx) {
2466 cx.notify();
2467 return;
2468 }
2469 if self.dismiss_menus_and_popups(true, cx) {
2470 return;
2471 }
2472
2473 if self.mode == EditorMode::Full
2474 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
2475 {
2476 return;
2477 }
2478
2479 cx.propagate();
2480 }
2481
2482 pub fn dismiss_menus_and_popups(
2483 &mut self,
2484 should_report_inline_completion_event: bool,
2485 cx: &mut ViewContext<Self>,
2486 ) -> bool {
2487 if self.take_rename(false, cx).is_some() {
2488 return true;
2489 }
2490
2491 if hide_hover(self, cx) {
2492 return true;
2493 }
2494
2495 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2496 return true;
2497 }
2498
2499 if self.hide_context_menu(cx).is_some() {
2500 if self.show_inline_completions_in_menu(cx) && self.has_active_inline_completion() {
2501 self.update_visible_inline_completion(cx);
2502 }
2503 return true;
2504 }
2505
2506 if self.mouse_context_menu.take().is_some() {
2507 return true;
2508 }
2509
2510 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2511 return true;
2512 }
2513
2514 if self.snippet_stack.pop().is_some() {
2515 return true;
2516 }
2517
2518 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
2519 self.dismiss_diagnostics(cx);
2520 return true;
2521 }
2522
2523 false
2524 }
2525
2526 fn linked_editing_ranges_for(
2527 &self,
2528 selection: Range<text::Anchor>,
2529 cx: &AppContext,
2530 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2531 if self.linked_edit_ranges.is_empty() {
2532 return None;
2533 }
2534 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2535 selection.end.buffer_id.and_then(|end_buffer_id| {
2536 if selection.start.buffer_id != Some(end_buffer_id) {
2537 return None;
2538 }
2539 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2540 let snapshot = buffer.read(cx).snapshot();
2541 self.linked_edit_ranges
2542 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2543 .map(|ranges| (ranges, snapshot, buffer))
2544 })?;
2545 use text::ToOffset as TO;
2546 // find offset from the start of current range to current cursor position
2547 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2548
2549 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2550 let start_difference = start_offset - start_byte_offset;
2551 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2552 let end_difference = end_offset - start_byte_offset;
2553 // Current range has associated linked ranges.
2554 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2555 for range in linked_ranges.iter() {
2556 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2557 let end_offset = start_offset + end_difference;
2558 let start_offset = start_offset + start_difference;
2559 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2560 continue;
2561 }
2562 if self.selections.disjoint_anchor_ranges().any(|s| {
2563 if s.start.buffer_id != selection.start.buffer_id
2564 || s.end.buffer_id != selection.end.buffer_id
2565 {
2566 return false;
2567 }
2568 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
2569 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
2570 }) {
2571 continue;
2572 }
2573 let start = buffer_snapshot.anchor_after(start_offset);
2574 let end = buffer_snapshot.anchor_after(end_offset);
2575 linked_edits
2576 .entry(buffer.clone())
2577 .or_default()
2578 .push(start..end);
2579 }
2580 Some(linked_edits)
2581 }
2582
2583 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2584 let text: Arc<str> = text.into();
2585
2586 if self.read_only(cx) {
2587 return;
2588 }
2589
2590 let selections = self.selections.all_adjusted(cx);
2591 let mut bracket_inserted = false;
2592 let mut edits = Vec::new();
2593 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2594 let mut new_selections = Vec::with_capacity(selections.len());
2595 let mut new_autoclose_regions = Vec::new();
2596 let snapshot = self.buffer.read(cx).read(cx);
2597
2598 for (selection, autoclose_region) in
2599 self.selections_with_autoclose_regions(selections, &snapshot)
2600 {
2601 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2602 // Determine if the inserted text matches the opening or closing
2603 // bracket of any of this language's bracket pairs.
2604 let mut bracket_pair = None;
2605 let mut is_bracket_pair_start = false;
2606 let mut is_bracket_pair_end = false;
2607 if !text.is_empty() {
2608 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2609 // and they are removing the character that triggered IME popup.
2610 for (pair, enabled) in scope.brackets() {
2611 if !pair.close && !pair.surround {
2612 continue;
2613 }
2614
2615 if enabled && pair.start.ends_with(text.as_ref()) {
2616 let prefix_len = pair.start.len() - text.len();
2617 let preceding_text_matches_prefix = prefix_len == 0
2618 || (selection.start.column >= (prefix_len as u32)
2619 && snapshot.contains_str_at(
2620 Point::new(
2621 selection.start.row,
2622 selection.start.column - (prefix_len as u32),
2623 ),
2624 &pair.start[..prefix_len],
2625 ));
2626 if preceding_text_matches_prefix {
2627 bracket_pair = Some(pair.clone());
2628 is_bracket_pair_start = true;
2629 break;
2630 }
2631 }
2632 if pair.end.as_str() == text.as_ref() {
2633 bracket_pair = Some(pair.clone());
2634 is_bracket_pair_end = true;
2635 break;
2636 }
2637 }
2638 }
2639
2640 if let Some(bracket_pair) = bracket_pair {
2641 let snapshot_settings = snapshot.settings_at(selection.start, cx);
2642 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
2643 let auto_surround =
2644 self.use_auto_surround && snapshot_settings.use_auto_surround;
2645 if selection.is_empty() {
2646 if is_bracket_pair_start {
2647 // If the inserted text is a suffix of an opening bracket and the
2648 // selection is preceded by the rest of the opening bracket, then
2649 // insert the closing bracket.
2650 let following_text_allows_autoclose = snapshot
2651 .chars_at(selection.start)
2652 .next()
2653 .map_or(true, |c| scope.should_autoclose_before(c));
2654
2655 let is_closing_quote = if bracket_pair.end == bracket_pair.start
2656 && bracket_pair.start.len() == 1
2657 {
2658 let target = bracket_pair.start.chars().next().unwrap();
2659 let current_line_count = snapshot
2660 .reversed_chars_at(selection.start)
2661 .take_while(|&c| c != '\n')
2662 .filter(|&c| c == target)
2663 .count();
2664 current_line_count % 2 == 1
2665 } else {
2666 false
2667 };
2668
2669 if autoclose
2670 && bracket_pair.close
2671 && following_text_allows_autoclose
2672 && !is_closing_quote
2673 {
2674 let anchor = snapshot.anchor_before(selection.end);
2675 new_selections.push((selection.map(|_| anchor), text.len()));
2676 new_autoclose_regions.push((
2677 anchor,
2678 text.len(),
2679 selection.id,
2680 bracket_pair.clone(),
2681 ));
2682 edits.push((
2683 selection.range(),
2684 format!("{}{}", text, bracket_pair.end).into(),
2685 ));
2686 bracket_inserted = true;
2687 continue;
2688 }
2689 }
2690
2691 if let Some(region) = autoclose_region {
2692 // If the selection is followed by an auto-inserted closing bracket,
2693 // then don't insert that closing bracket again; just move the selection
2694 // past the closing bracket.
2695 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2696 && text.as_ref() == region.pair.end.as_str();
2697 if should_skip {
2698 let anchor = snapshot.anchor_after(selection.end);
2699 new_selections
2700 .push((selection.map(|_| anchor), region.pair.end.len()));
2701 continue;
2702 }
2703 }
2704
2705 let always_treat_brackets_as_autoclosed = snapshot
2706 .settings_at(selection.start, cx)
2707 .always_treat_brackets_as_autoclosed;
2708 if always_treat_brackets_as_autoclosed
2709 && is_bracket_pair_end
2710 && snapshot.contains_str_at(selection.end, text.as_ref())
2711 {
2712 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2713 // and the inserted text is a closing bracket and the selection is followed
2714 // by the closing bracket then move the selection past the closing bracket.
2715 let anchor = snapshot.anchor_after(selection.end);
2716 new_selections.push((selection.map(|_| anchor), text.len()));
2717 continue;
2718 }
2719 }
2720 // If an opening bracket is 1 character long and is typed while
2721 // text is selected, then surround that text with the bracket pair.
2722 else if auto_surround
2723 && bracket_pair.surround
2724 && is_bracket_pair_start
2725 && bracket_pair.start.chars().count() == 1
2726 {
2727 edits.push((selection.start..selection.start, text.clone()));
2728 edits.push((
2729 selection.end..selection.end,
2730 bracket_pair.end.as_str().into(),
2731 ));
2732 bracket_inserted = true;
2733 new_selections.push((
2734 Selection {
2735 id: selection.id,
2736 start: snapshot.anchor_after(selection.start),
2737 end: snapshot.anchor_before(selection.end),
2738 reversed: selection.reversed,
2739 goal: selection.goal,
2740 },
2741 0,
2742 ));
2743 continue;
2744 }
2745 }
2746 }
2747
2748 if self.auto_replace_emoji_shortcode
2749 && selection.is_empty()
2750 && text.as_ref().ends_with(':')
2751 {
2752 if let Some(possible_emoji_short_code) =
2753 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2754 {
2755 if !possible_emoji_short_code.is_empty() {
2756 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2757 let emoji_shortcode_start = Point::new(
2758 selection.start.row,
2759 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2760 );
2761
2762 // Remove shortcode from buffer
2763 edits.push((
2764 emoji_shortcode_start..selection.start,
2765 "".to_string().into(),
2766 ));
2767 new_selections.push((
2768 Selection {
2769 id: selection.id,
2770 start: snapshot.anchor_after(emoji_shortcode_start),
2771 end: snapshot.anchor_before(selection.start),
2772 reversed: selection.reversed,
2773 goal: selection.goal,
2774 },
2775 0,
2776 ));
2777
2778 // Insert emoji
2779 let selection_start_anchor = snapshot.anchor_after(selection.start);
2780 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2781 edits.push((selection.start..selection.end, emoji.to_string().into()));
2782
2783 continue;
2784 }
2785 }
2786 }
2787 }
2788
2789 // If not handling any auto-close operation, then just replace the selected
2790 // text with the given input and move the selection to the end of the
2791 // newly inserted text.
2792 let anchor = snapshot.anchor_after(selection.end);
2793 if !self.linked_edit_ranges.is_empty() {
2794 let start_anchor = snapshot.anchor_before(selection.start);
2795
2796 let is_word_char = text.chars().next().map_or(true, |char| {
2797 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
2798 classifier.is_word(char)
2799 });
2800
2801 if is_word_char {
2802 if let Some(ranges) = self
2803 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
2804 {
2805 for (buffer, edits) in ranges {
2806 linked_edits
2807 .entry(buffer.clone())
2808 .or_default()
2809 .extend(edits.into_iter().map(|range| (range, text.clone())));
2810 }
2811 }
2812 }
2813 }
2814
2815 new_selections.push((selection.map(|_| anchor), 0));
2816 edits.push((selection.start..selection.end, text.clone()));
2817 }
2818
2819 drop(snapshot);
2820
2821 self.transact(cx, |this, cx| {
2822 this.buffer.update(cx, |buffer, cx| {
2823 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2824 });
2825 for (buffer, edits) in linked_edits {
2826 buffer.update(cx, |buffer, cx| {
2827 let snapshot = buffer.snapshot();
2828 let edits = edits
2829 .into_iter()
2830 .map(|(range, text)| {
2831 use text::ToPoint as TP;
2832 let end_point = TP::to_point(&range.end, &snapshot);
2833 let start_point = TP::to_point(&range.start, &snapshot);
2834 (start_point..end_point, text)
2835 })
2836 .sorted_by_key(|(range, _)| range.start)
2837 .collect::<Vec<_>>();
2838 buffer.edit(edits, None, cx);
2839 })
2840 }
2841 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2842 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2843 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
2844 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
2845 .zip(new_selection_deltas)
2846 .map(|(selection, delta)| Selection {
2847 id: selection.id,
2848 start: selection.start + delta,
2849 end: selection.end + delta,
2850 reversed: selection.reversed,
2851 goal: SelectionGoal::None,
2852 })
2853 .collect::<Vec<_>>();
2854
2855 let mut i = 0;
2856 for (position, delta, selection_id, pair) in new_autoclose_regions {
2857 let position = position.to_offset(&map.buffer_snapshot) + delta;
2858 let start = map.buffer_snapshot.anchor_before(position);
2859 let end = map.buffer_snapshot.anchor_after(position);
2860 while let Some(existing_state) = this.autoclose_regions.get(i) {
2861 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
2862 Ordering::Less => i += 1,
2863 Ordering::Greater => break,
2864 Ordering::Equal => {
2865 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
2866 Ordering::Less => i += 1,
2867 Ordering::Equal => break,
2868 Ordering::Greater => break,
2869 }
2870 }
2871 }
2872 }
2873 this.autoclose_regions.insert(
2874 i,
2875 AutocloseRegion {
2876 selection_id,
2877 range: start..end,
2878 pair,
2879 },
2880 );
2881 }
2882
2883 let had_active_inline_completion = this.has_active_inline_completion();
2884 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
2885 s.select(new_selections)
2886 });
2887
2888 if !bracket_inserted {
2889 if let Some(on_type_format_task) =
2890 this.trigger_on_type_formatting(text.to_string(), cx)
2891 {
2892 on_type_format_task.detach_and_log_err(cx);
2893 }
2894 }
2895
2896 let editor_settings = EditorSettings::get_global(cx);
2897 if bracket_inserted
2898 && (editor_settings.auto_signature_help
2899 || editor_settings.show_signature_help_after_edits)
2900 {
2901 this.show_signature_help(&ShowSignatureHelp, cx);
2902 }
2903
2904 let trigger_in_words =
2905 this.show_inline_completions_in_menu(cx) || !had_active_inline_completion;
2906 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2907 linked_editing_ranges::refresh_linked_ranges(this, cx);
2908 this.refresh_inline_completion(true, false, cx);
2909 });
2910 }
2911
2912 fn find_possible_emoji_shortcode_at_position(
2913 snapshot: &MultiBufferSnapshot,
2914 position: Point,
2915 ) -> Option<String> {
2916 let mut chars = Vec::new();
2917 let mut found_colon = false;
2918 for char in snapshot.reversed_chars_at(position).take(100) {
2919 // Found a possible emoji shortcode in the middle of the buffer
2920 if found_colon {
2921 if char.is_whitespace() {
2922 chars.reverse();
2923 return Some(chars.iter().collect());
2924 }
2925 // If the previous character is not a whitespace, we are in the middle of a word
2926 // and we only want to complete the shortcode if the word is made up of other emojis
2927 let mut containing_word = String::new();
2928 for ch in snapshot
2929 .reversed_chars_at(position)
2930 .skip(chars.len() + 1)
2931 .take(100)
2932 {
2933 if ch.is_whitespace() {
2934 break;
2935 }
2936 containing_word.push(ch);
2937 }
2938 let containing_word = containing_word.chars().rev().collect::<String>();
2939 if util::word_consists_of_emojis(containing_word.as_str()) {
2940 chars.reverse();
2941 return Some(chars.iter().collect());
2942 }
2943 }
2944
2945 if char.is_whitespace() || !char.is_ascii() {
2946 return None;
2947 }
2948 if char == ':' {
2949 found_colon = true;
2950 } else {
2951 chars.push(char);
2952 }
2953 }
2954 // Found a possible emoji shortcode at the beginning of the buffer
2955 chars.reverse();
2956 Some(chars.iter().collect())
2957 }
2958
2959 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2960 self.transact(cx, |this, cx| {
2961 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2962 let selections = this.selections.all::<usize>(cx);
2963 let multi_buffer = this.buffer.read(cx);
2964 let buffer = multi_buffer.snapshot(cx);
2965 selections
2966 .iter()
2967 .map(|selection| {
2968 let start_point = selection.start.to_point(&buffer);
2969 let mut indent =
2970 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
2971 indent.len = cmp::min(indent.len, start_point.column);
2972 let start = selection.start;
2973 let end = selection.end;
2974 let selection_is_empty = start == end;
2975 let language_scope = buffer.language_scope_at(start);
2976 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2977 &language_scope
2978 {
2979 let leading_whitespace_len = buffer
2980 .reversed_chars_at(start)
2981 .take_while(|c| c.is_whitespace() && *c != '\n')
2982 .map(|c| c.len_utf8())
2983 .sum::<usize>();
2984
2985 let trailing_whitespace_len = buffer
2986 .chars_at(end)
2987 .take_while(|c| c.is_whitespace() && *c != '\n')
2988 .map(|c| c.len_utf8())
2989 .sum::<usize>();
2990
2991 let insert_extra_newline =
2992 language.brackets().any(|(pair, enabled)| {
2993 let pair_start = pair.start.trim_end();
2994 let pair_end = pair.end.trim_start();
2995
2996 enabled
2997 && pair.newline
2998 && buffer.contains_str_at(
2999 end + trailing_whitespace_len,
3000 pair_end,
3001 )
3002 && buffer.contains_str_at(
3003 (start - leading_whitespace_len)
3004 .saturating_sub(pair_start.len()),
3005 pair_start,
3006 )
3007 });
3008
3009 // Comment extension on newline is allowed only for cursor selections
3010 let comment_delimiter = maybe!({
3011 if !selection_is_empty {
3012 return None;
3013 }
3014
3015 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3016 return None;
3017 }
3018
3019 let delimiters = language.line_comment_prefixes();
3020 let max_len_of_delimiter =
3021 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3022 let (snapshot, range) =
3023 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3024
3025 let mut index_of_first_non_whitespace = 0;
3026 let comment_candidate = snapshot
3027 .chars_for_range(range)
3028 .skip_while(|c| {
3029 let should_skip = c.is_whitespace();
3030 if should_skip {
3031 index_of_first_non_whitespace += 1;
3032 }
3033 should_skip
3034 })
3035 .take(max_len_of_delimiter)
3036 .collect::<String>();
3037 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3038 comment_candidate.starts_with(comment_prefix.as_ref())
3039 })?;
3040 let cursor_is_placed_after_comment_marker =
3041 index_of_first_non_whitespace + comment_prefix.len()
3042 <= start_point.column as usize;
3043 if cursor_is_placed_after_comment_marker {
3044 Some(comment_prefix.clone())
3045 } else {
3046 None
3047 }
3048 });
3049 (comment_delimiter, insert_extra_newline)
3050 } else {
3051 (None, false)
3052 };
3053
3054 let capacity_for_delimiter = comment_delimiter
3055 .as_deref()
3056 .map(str::len)
3057 .unwrap_or_default();
3058 let mut new_text =
3059 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3060 new_text.push('\n');
3061 new_text.extend(indent.chars());
3062 if let Some(delimiter) = &comment_delimiter {
3063 new_text.push_str(delimiter);
3064 }
3065 if insert_extra_newline {
3066 new_text = new_text.repeat(2);
3067 }
3068
3069 let anchor = buffer.anchor_after(end);
3070 let new_selection = selection.map(|_| anchor);
3071 (
3072 (start..end, new_text),
3073 (insert_extra_newline, new_selection),
3074 )
3075 })
3076 .unzip()
3077 };
3078
3079 this.edit_with_autoindent(edits, cx);
3080 let buffer = this.buffer.read(cx).snapshot(cx);
3081 let new_selections = selection_fixup_info
3082 .into_iter()
3083 .map(|(extra_newline_inserted, new_selection)| {
3084 let mut cursor = new_selection.end.to_point(&buffer);
3085 if extra_newline_inserted {
3086 cursor.row -= 1;
3087 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3088 }
3089 new_selection.map(|_| cursor)
3090 })
3091 .collect();
3092
3093 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3094 this.refresh_inline_completion(true, false, cx);
3095 });
3096 }
3097
3098 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3099 let buffer = self.buffer.read(cx);
3100 let snapshot = buffer.snapshot(cx);
3101
3102 let mut edits = Vec::new();
3103 let mut rows = Vec::new();
3104
3105 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3106 let cursor = selection.head();
3107 let row = cursor.row;
3108
3109 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3110
3111 let newline = "\n".to_string();
3112 edits.push((start_of_line..start_of_line, newline));
3113
3114 rows.push(row + rows_inserted as u32);
3115 }
3116
3117 self.transact(cx, |editor, cx| {
3118 editor.edit(edits, cx);
3119
3120 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3121 let mut index = 0;
3122 s.move_cursors_with(|map, _, _| {
3123 let row = rows[index];
3124 index += 1;
3125
3126 let point = Point::new(row, 0);
3127 let boundary = map.next_line_boundary(point).1;
3128 let clipped = map.clip_point(boundary, Bias::Left);
3129
3130 (clipped, SelectionGoal::None)
3131 });
3132 });
3133
3134 let mut indent_edits = Vec::new();
3135 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3136 for row in rows {
3137 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3138 for (row, indent) in indents {
3139 if indent.len == 0 {
3140 continue;
3141 }
3142
3143 let text = match indent.kind {
3144 IndentKind::Space => " ".repeat(indent.len as usize),
3145 IndentKind::Tab => "\t".repeat(indent.len as usize),
3146 };
3147 let point = Point::new(row.0, 0);
3148 indent_edits.push((point..point, text));
3149 }
3150 }
3151 editor.edit(indent_edits, cx);
3152 });
3153 }
3154
3155 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3156 let buffer = self.buffer.read(cx);
3157 let snapshot = buffer.snapshot(cx);
3158
3159 let mut edits = Vec::new();
3160 let mut rows = Vec::new();
3161 let mut rows_inserted = 0;
3162
3163 for selection in self.selections.all_adjusted(cx) {
3164 let cursor = selection.head();
3165 let row = cursor.row;
3166
3167 let point = Point::new(row + 1, 0);
3168 let start_of_line = snapshot.clip_point(point, Bias::Left);
3169
3170 let newline = "\n".to_string();
3171 edits.push((start_of_line..start_of_line, newline));
3172
3173 rows_inserted += 1;
3174 rows.push(row + rows_inserted);
3175 }
3176
3177 self.transact(cx, |editor, cx| {
3178 editor.edit(edits, cx);
3179
3180 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3181 let mut index = 0;
3182 s.move_cursors_with(|map, _, _| {
3183 let row = rows[index];
3184 index += 1;
3185
3186 let point = Point::new(row, 0);
3187 let boundary = map.next_line_boundary(point).1;
3188 let clipped = map.clip_point(boundary, Bias::Left);
3189
3190 (clipped, SelectionGoal::None)
3191 });
3192 });
3193
3194 let mut indent_edits = Vec::new();
3195 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3196 for row in rows {
3197 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3198 for (row, indent) in indents {
3199 if indent.len == 0 {
3200 continue;
3201 }
3202
3203 let text = match indent.kind {
3204 IndentKind::Space => " ".repeat(indent.len as usize),
3205 IndentKind::Tab => "\t".repeat(indent.len as usize),
3206 };
3207 let point = Point::new(row.0, 0);
3208 indent_edits.push((point..point, text));
3209 }
3210 }
3211 editor.edit(indent_edits, cx);
3212 });
3213 }
3214
3215 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3216 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3217 original_indent_columns: Vec::new(),
3218 });
3219 self.insert_with_autoindent_mode(text, autoindent, cx);
3220 }
3221
3222 fn insert_with_autoindent_mode(
3223 &mut self,
3224 text: &str,
3225 autoindent_mode: Option<AutoindentMode>,
3226 cx: &mut ViewContext<Self>,
3227 ) {
3228 if self.read_only(cx) {
3229 return;
3230 }
3231
3232 let text: Arc<str> = text.into();
3233 self.transact(cx, |this, cx| {
3234 let old_selections = this.selections.all_adjusted(cx);
3235 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3236 let anchors = {
3237 let snapshot = buffer.read(cx);
3238 old_selections
3239 .iter()
3240 .map(|s| {
3241 let anchor = snapshot.anchor_after(s.head());
3242 s.map(|_| anchor)
3243 })
3244 .collect::<Vec<_>>()
3245 };
3246 buffer.edit(
3247 old_selections
3248 .iter()
3249 .map(|s| (s.start..s.end, text.clone())),
3250 autoindent_mode,
3251 cx,
3252 );
3253 anchors
3254 });
3255
3256 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3257 s.select_anchors(selection_anchors);
3258 })
3259 });
3260 }
3261
3262 fn trigger_completion_on_input(
3263 &mut self,
3264 text: &str,
3265 trigger_in_words: bool,
3266 cx: &mut ViewContext<Self>,
3267 ) {
3268 if self.is_completion_trigger(text, trigger_in_words, cx) {
3269 self.show_completions(
3270 &ShowCompletions {
3271 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3272 },
3273 cx,
3274 );
3275 } else {
3276 self.hide_context_menu(cx);
3277 }
3278 }
3279
3280 fn is_completion_trigger(
3281 &self,
3282 text: &str,
3283 trigger_in_words: bool,
3284 cx: &mut ViewContext<Self>,
3285 ) -> bool {
3286 let position = self.selections.newest_anchor().head();
3287 let multibuffer = self.buffer.read(cx);
3288 let Some(buffer) = position
3289 .buffer_id
3290 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3291 else {
3292 return false;
3293 };
3294
3295 if let Some(completion_provider) = &self.completion_provider {
3296 completion_provider.is_completion_trigger(
3297 &buffer,
3298 position.text_anchor,
3299 text,
3300 trigger_in_words,
3301 cx,
3302 )
3303 } else {
3304 false
3305 }
3306 }
3307
3308 /// If any empty selections is touching the start of its innermost containing autoclose
3309 /// region, expand it to select the brackets.
3310 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3311 let selections = self.selections.all::<usize>(cx);
3312 let buffer = self.buffer.read(cx).read(cx);
3313 let new_selections = self
3314 .selections_with_autoclose_regions(selections, &buffer)
3315 .map(|(mut selection, region)| {
3316 if !selection.is_empty() {
3317 return selection;
3318 }
3319
3320 if let Some(region) = region {
3321 let mut range = region.range.to_offset(&buffer);
3322 if selection.start == range.start && range.start >= region.pair.start.len() {
3323 range.start -= region.pair.start.len();
3324 if buffer.contains_str_at(range.start, ®ion.pair.start)
3325 && buffer.contains_str_at(range.end, ®ion.pair.end)
3326 {
3327 range.end += region.pair.end.len();
3328 selection.start = range.start;
3329 selection.end = range.end;
3330
3331 return selection;
3332 }
3333 }
3334 }
3335
3336 let always_treat_brackets_as_autoclosed = buffer
3337 .settings_at(selection.start, cx)
3338 .always_treat_brackets_as_autoclosed;
3339
3340 if !always_treat_brackets_as_autoclosed {
3341 return selection;
3342 }
3343
3344 if let Some(scope) = buffer.language_scope_at(selection.start) {
3345 for (pair, enabled) in scope.brackets() {
3346 if !enabled || !pair.close {
3347 continue;
3348 }
3349
3350 if buffer.contains_str_at(selection.start, &pair.end) {
3351 let pair_start_len = pair.start.len();
3352 if buffer.contains_str_at(
3353 selection.start.saturating_sub(pair_start_len),
3354 &pair.start,
3355 ) {
3356 selection.start -= pair_start_len;
3357 selection.end += pair.end.len();
3358
3359 return selection;
3360 }
3361 }
3362 }
3363 }
3364
3365 selection
3366 })
3367 .collect();
3368
3369 drop(buffer);
3370 self.change_selections(None, cx, |selections| selections.select(new_selections));
3371 }
3372
3373 /// Iterate the given selections, and for each one, find the smallest surrounding
3374 /// autoclose region. This uses the ordering of the selections and the autoclose
3375 /// regions to avoid repeated comparisons.
3376 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3377 &'a self,
3378 selections: impl IntoIterator<Item = Selection<D>>,
3379 buffer: &'a MultiBufferSnapshot,
3380 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3381 let mut i = 0;
3382 let mut regions = self.autoclose_regions.as_slice();
3383 selections.into_iter().map(move |selection| {
3384 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3385
3386 let mut enclosing = None;
3387 while let Some(pair_state) = regions.get(i) {
3388 if pair_state.range.end.to_offset(buffer) < range.start {
3389 regions = ®ions[i + 1..];
3390 i = 0;
3391 } else if pair_state.range.start.to_offset(buffer) > range.end {
3392 break;
3393 } else {
3394 if pair_state.selection_id == selection.id {
3395 enclosing = Some(pair_state);
3396 }
3397 i += 1;
3398 }
3399 }
3400
3401 (selection, enclosing)
3402 })
3403 }
3404
3405 /// Remove any autoclose regions that no longer contain their selection.
3406 fn invalidate_autoclose_regions(
3407 &mut self,
3408 mut selections: &[Selection<Anchor>],
3409 buffer: &MultiBufferSnapshot,
3410 ) {
3411 self.autoclose_regions.retain(|state| {
3412 let mut i = 0;
3413 while let Some(selection) = selections.get(i) {
3414 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3415 selections = &selections[1..];
3416 continue;
3417 }
3418 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3419 break;
3420 }
3421 if selection.id == state.selection_id {
3422 return true;
3423 } else {
3424 i += 1;
3425 }
3426 }
3427 false
3428 });
3429 }
3430
3431 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3432 let offset = position.to_offset(buffer);
3433 let (word_range, kind) = buffer.surrounding_word(offset, true);
3434 if offset > word_range.start && kind == Some(CharKind::Word) {
3435 Some(
3436 buffer
3437 .text_for_range(word_range.start..offset)
3438 .collect::<String>(),
3439 )
3440 } else {
3441 None
3442 }
3443 }
3444
3445 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3446 self.refresh_inlay_hints(
3447 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3448 cx,
3449 );
3450 }
3451
3452 pub fn inlay_hints_enabled(&self) -> bool {
3453 self.inlay_hint_cache.enabled
3454 }
3455
3456 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3457 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
3458 return;
3459 }
3460
3461 let reason_description = reason.description();
3462 let ignore_debounce = matches!(
3463 reason,
3464 InlayHintRefreshReason::SettingsChange(_)
3465 | InlayHintRefreshReason::Toggle(_)
3466 | InlayHintRefreshReason::ExcerptsRemoved(_)
3467 );
3468 let (invalidate_cache, required_languages) = match reason {
3469 InlayHintRefreshReason::Toggle(enabled) => {
3470 self.inlay_hint_cache.enabled = enabled;
3471 if enabled {
3472 (InvalidationStrategy::RefreshRequested, None)
3473 } else {
3474 self.inlay_hint_cache.clear();
3475 self.splice_inlays(
3476 self.visible_inlay_hints(cx)
3477 .iter()
3478 .map(|inlay| inlay.id)
3479 .collect(),
3480 Vec::new(),
3481 cx,
3482 );
3483 return;
3484 }
3485 }
3486 InlayHintRefreshReason::SettingsChange(new_settings) => {
3487 match self.inlay_hint_cache.update_settings(
3488 &self.buffer,
3489 new_settings,
3490 self.visible_inlay_hints(cx),
3491 cx,
3492 ) {
3493 ControlFlow::Break(Some(InlaySplice {
3494 to_remove,
3495 to_insert,
3496 })) => {
3497 self.splice_inlays(to_remove, to_insert, cx);
3498 return;
3499 }
3500 ControlFlow::Break(None) => return,
3501 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3502 }
3503 }
3504 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3505 if let Some(InlaySplice {
3506 to_remove,
3507 to_insert,
3508 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3509 {
3510 self.splice_inlays(to_remove, to_insert, cx);
3511 }
3512 return;
3513 }
3514 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3515 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3516 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3517 }
3518 InlayHintRefreshReason::RefreshRequested => {
3519 (InvalidationStrategy::RefreshRequested, None)
3520 }
3521 };
3522
3523 if let Some(InlaySplice {
3524 to_remove,
3525 to_insert,
3526 }) = self.inlay_hint_cache.spawn_hint_refresh(
3527 reason_description,
3528 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3529 invalidate_cache,
3530 ignore_debounce,
3531 cx,
3532 ) {
3533 self.splice_inlays(to_remove, to_insert, cx);
3534 }
3535 }
3536
3537 fn visible_inlay_hints(&self, cx: &ViewContext<Editor>) -> Vec<Inlay> {
3538 self.display_map
3539 .read(cx)
3540 .current_inlays()
3541 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3542 .cloned()
3543 .collect()
3544 }
3545
3546 pub fn excerpts_for_inlay_hints_query(
3547 &self,
3548 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3549 cx: &mut ViewContext<Editor>,
3550 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3551 let Some(project) = self.project.as_ref() else {
3552 return HashMap::default();
3553 };
3554 let project = project.read(cx);
3555 let multi_buffer = self.buffer().read(cx);
3556 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3557 let multi_buffer_visible_start = self
3558 .scroll_manager
3559 .anchor()
3560 .anchor
3561 .to_point(&multi_buffer_snapshot);
3562 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3563 multi_buffer_visible_start
3564 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3565 Bias::Left,
3566 );
3567 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3568 multi_buffer_snapshot
3569 .range_to_buffer_ranges(multi_buffer_visible_range)
3570 .into_iter()
3571 .filter(|(_, excerpt_visible_range)| !excerpt_visible_range.is_empty())
3572 .filter_map(|(excerpt, excerpt_visible_range)| {
3573 let buffer_file = project::File::from_dyn(excerpt.buffer().file())?;
3574 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3575 let worktree_entry = buffer_worktree
3576 .read(cx)
3577 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3578 if worktree_entry.is_ignored {
3579 return None;
3580 }
3581
3582 let language = excerpt.buffer().language()?;
3583 if let Some(restrict_to_languages) = restrict_to_languages {
3584 if !restrict_to_languages.contains(language) {
3585 return None;
3586 }
3587 }
3588 Some((
3589 excerpt.id(),
3590 (
3591 multi_buffer.buffer(excerpt.buffer_id()).unwrap(),
3592 excerpt.buffer().version().clone(),
3593 excerpt_visible_range,
3594 ),
3595 ))
3596 })
3597 .collect()
3598 }
3599
3600 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3601 TextLayoutDetails {
3602 text_system: cx.text_system().clone(),
3603 editor_style: self.style.clone().unwrap(),
3604 rem_size: cx.rem_size(),
3605 scroll_anchor: self.scroll_manager.anchor(),
3606 visible_rows: self.visible_line_count(),
3607 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3608 }
3609 }
3610
3611 pub fn splice_inlays(
3612 &self,
3613 to_remove: Vec<InlayId>,
3614 to_insert: Vec<Inlay>,
3615 cx: &mut ViewContext<Self>,
3616 ) {
3617 self.display_map.update(cx, |display_map, cx| {
3618 display_map.splice_inlays(to_remove, to_insert, cx)
3619 });
3620 cx.notify();
3621 }
3622
3623 fn trigger_on_type_formatting(
3624 &self,
3625 input: String,
3626 cx: &mut ViewContext<Self>,
3627 ) -> Option<Task<Result<()>>> {
3628 if input.len() != 1 {
3629 return None;
3630 }
3631
3632 let project = self.project.as_ref()?;
3633 let position = self.selections.newest_anchor().head();
3634 let (buffer, buffer_position) = self
3635 .buffer
3636 .read(cx)
3637 .text_anchor_for_position(position, cx)?;
3638
3639 let settings = language_settings::language_settings(
3640 buffer
3641 .read(cx)
3642 .language_at(buffer_position)
3643 .map(|l| l.name()),
3644 buffer.read(cx).file(),
3645 cx,
3646 );
3647 if !settings.use_on_type_format {
3648 return None;
3649 }
3650
3651 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3652 // hence we do LSP request & edit on host side only — add formats to host's history.
3653 let push_to_lsp_host_history = true;
3654 // If this is not the host, append its history with new edits.
3655 let push_to_client_history = project.read(cx).is_via_collab();
3656
3657 let on_type_formatting = project.update(cx, |project, cx| {
3658 project.on_type_format(
3659 buffer.clone(),
3660 buffer_position,
3661 input,
3662 push_to_lsp_host_history,
3663 cx,
3664 )
3665 });
3666 Some(cx.spawn(|editor, mut cx| async move {
3667 if let Some(transaction) = on_type_formatting.await? {
3668 if push_to_client_history {
3669 buffer
3670 .update(&mut cx, |buffer, _| {
3671 buffer.push_transaction(transaction, Instant::now());
3672 })
3673 .ok();
3674 }
3675 editor.update(&mut cx, |editor, cx| {
3676 editor.refresh_document_highlights(cx);
3677 })?;
3678 }
3679 Ok(())
3680 }))
3681 }
3682
3683 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
3684 if self.pending_rename.is_some() {
3685 return;
3686 }
3687
3688 let Some(provider) = self.completion_provider.as_ref() else {
3689 return;
3690 };
3691
3692 if !self.snippet_stack.is_empty() && self.context_menu.borrow().as_ref().is_some() {
3693 return;
3694 }
3695
3696 let position = self.selections.newest_anchor().head();
3697 let (buffer, buffer_position) =
3698 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3699 output
3700 } else {
3701 return;
3702 };
3703 let show_completion_documentation = buffer
3704 .read(cx)
3705 .snapshot()
3706 .settings_at(buffer_position, cx)
3707 .show_completion_documentation;
3708
3709 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3710
3711 let trigger_kind = match &options.trigger {
3712 Some(trigger) if buffer.read(cx).completion_triggers().contains(trigger) => {
3713 CompletionTriggerKind::TRIGGER_CHARACTER
3714 }
3715 _ => CompletionTriggerKind::INVOKED,
3716 };
3717 let completion_context = CompletionContext {
3718 trigger_character: options.trigger.as_ref().and_then(|trigger| {
3719 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
3720 Some(String::from(trigger))
3721 } else {
3722 None
3723 }
3724 }),
3725 trigger_kind,
3726 };
3727 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
3728 let sort_completions = provider.sort_completions();
3729
3730 let id = post_inc(&mut self.next_completion_id);
3731 let task = cx.spawn(|editor, mut cx| {
3732 async move {
3733 editor.update(&mut cx, |this, _| {
3734 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3735 })?;
3736 let completions = completions.await.log_err();
3737 let menu = if let Some(completions) = completions {
3738 let mut menu = CompletionsMenu::new(
3739 id,
3740 sort_completions,
3741 show_completion_documentation,
3742 position,
3743 buffer.clone(),
3744 completions.into(),
3745 );
3746
3747 menu.filter(query.as_deref(), cx.background_executor().clone())
3748 .await;
3749
3750 menu.visible().then_some(menu)
3751 } else {
3752 None
3753 };
3754
3755 editor.update(&mut cx, |editor, cx| {
3756 match editor.context_menu.borrow().as_ref() {
3757 None => {}
3758 Some(CodeContextMenu::Completions(prev_menu)) => {
3759 if prev_menu.id > id {
3760 return;
3761 }
3762 }
3763 _ => return,
3764 }
3765
3766 if editor.focus_handle.is_focused(cx) && menu.is_some() {
3767 let mut menu = menu.unwrap();
3768 menu.resolve_visible_completions(editor.completion_provider.as_deref(), cx);
3769
3770 if editor.show_inline_completions_in_menu(cx) {
3771 if let Some(hint) = editor.inline_completion_menu_hint(cx) {
3772 menu.show_inline_completion_hint(hint);
3773 }
3774 } else {
3775 editor.discard_inline_completion(false, cx);
3776 }
3777
3778 *editor.context_menu.borrow_mut() =
3779 Some(CodeContextMenu::Completions(menu));
3780
3781 cx.notify();
3782 } else if editor.completion_tasks.len() <= 1 {
3783 // If there are no more completion tasks and the last menu was
3784 // empty, we should hide it.
3785 let was_hidden = editor.hide_context_menu(cx).is_none();
3786 // If it was already hidden and we don't show inline
3787 // completions in the menu, we should also show the
3788 // inline-completion when available.
3789 if was_hidden && editor.show_inline_completions_in_menu(cx) {
3790 editor.update_visible_inline_completion(cx);
3791 }
3792 }
3793 })?;
3794
3795 Ok::<_, anyhow::Error>(())
3796 }
3797 .log_err()
3798 });
3799
3800 self.completion_tasks.push((id, task));
3801 }
3802
3803 pub fn confirm_completion(
3804 &mut self,
3805 action: &ConfirmCompletion,
3806 cx: &mut ViewContext<Self>,
3807 ) -> Option<Task<Result<()>>> {
3808 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
3809 }
3810
3811 pub fn compose_completion(
3812 &mut self,
3813 action: &ComposeCompletion,
3814 cx: &mut ViewContext<Self>,
3815 ) -> Option<Task<Result<()>>> {
3816 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
3817 }
3818
3819 fn do_completion(
3820 &mut self,
3821 item_ix: Option<usize>,
3822 intent: CompletionIntent,
3823 cx: &mut ViewContext<Editor>,
3824 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
3825 use language::ToOffset as _;
3826
3827 let completions_menu =
3828 if let CodeContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3829 menu
3830 } else {
3831 return None;
3832 };
3833
3834 let entries = completions_menu.entries.borrow();
3835 let mat = entries.get(item_ix.unwrap_or(completions_menu.selected_item))?;
3836 let mat = match mat {
3837 CompletionEntry::InlineCompletionHint { .. } => {
3838 self.accept_inline_completion(&AcceptInlineCompletion, cx);
3839 cx.stop_propagation();
3840 return Some(Task::ready(Ok(())));
3841 }
3842 CompletionEntry::Match(mat) => {
3843 if self.show_inline_completions_in_menu(cx) {
3844 self.discard_inline_completion(true, cx);
3845 }
3846 mat
3847 }
3848 };
3849 let candidate_id = mat.candidate_id;
3850 drop(entries);
3851
3852 let buffer_handle = completions_menu.buffer;
3853 let completion = completions_menu
3854 .completions
3855 .borrow()
3856 .get(candidate_id)?
3857 .clone();
3858 cx.stop_propagation();
3859
3860 let snippet;
3861 let text;
3862
3863 if completion.is_snippet() {
3864 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3865 text = snippet.as_ref().unwrap().text.clone();
3866 } else {
3867 snippet = None;
3868 text = completion.new_text.clone();
3869 };
3870 let selections = self.selections.all::<usize>(cx);
3871 let buffer = buffer_handle.read(cx);
3872 let old_range = completion.old_range.to_offset(buffer);
3873 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3874
3875 let newest_selection = self.selections.newest_anchor();
3876 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3877 return None;
3878 }
3879
3880 let lookbehind = newest_selection
3881 .start
3882 .text_anchor
3883 .to_offset(buffer)
3884 .saturating_sub(old_range.start);
3885 let lookahead = old_range
3886 .end
3887 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3888 let mut common_prefix_len = old_text
3889 .bytes()
3890 .zip(text.bytes())
3891 .take_while(|(a, b)| a == b)
3892 .count();
3893
3894 let snapshot = self.buffer.read(cx).snapshot(cx);
3895 let mut range_to_replace: Option<Range<isize>> = None;
3896 let mut ranges = Vec::new();
3897 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3898 for selection in &selections {
3899 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3900 let start = selection.start.saturating_sub(lookbehind);
3901 let end = selection.end + lookahead;
3902 if selection.id == newest_selection.id {
3903 range_to_replace = Some(
3904 ((start + common_prefix_len) as isize - selection.start as isize)
3905 ..(end as isize - selection.start as isize),
3906 );
3907 }
3908 ranges.push(start + common_prefix_len..end);
3909 } else {
3910 common_prefix_len = 0;
3911 ranges.clear();
3912 ranges.extend(selections.iter().map(|s| {
3913 if s.id == newest_selection.id {
3914 range_to_replace = Some(
3915 old_range.start.to_offset_utf16(&snapshot).0 as isize
3916 - selection.start as isize
3917 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3918 - selection.start as isize,
3919 );
3920 old_range.clone()
3921 } else {
3922 s.start..s.end
3923 }
3924 }));
3925 break;
3926 }
3927 if !self.linked_edit_ranges.is_empty() {
3928 let start_anchor = snapshot.anchor_before(selection.head());
3929 let end_anchor = snapshot.anchor_after(selection.tail());
3930 if let Some(ranges) = self
3931 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
3932 {
3933 for (buffer, edits) in ranges {
3934 linked_edits.entry(buffer.clone()).or_default().extend(
3935 edits
3936 .into_iter()
3937 .map(|range| (range, text[common_prefix_len..].to_owned())),
3938 );
3939 }
3940 }
3941 }
3942 }
3943 let text = &text[common_prefix_len..];
3944
3945 cx.emit(EditorEvent::InputHandled {
3946 utf16_range_to_replace: range_to_replace,
3947 text: text.into(),
3948 });
3949
3950 self.transact(cx, |this, cx| {
3951 if let Some(mut snippet) = snippet {
3952 snippet.text = text.to_string();
3953 for tabstop in snippet
3954 .tabstops
3955 .iter_mut()
3956 .flat_map(|tabstop| tabstop.ranges.iter_mut())
3957 {
3958 tabstop.start -= common_prefix_len as isize;
3959 tabstop.end -= common_prefix_len as isize;
3960 }
3961
3962 this.insert_snippet(&ranges, snippet, cx).log_err();
3963 } else {
3964 this.buffer.update(cx, |buffer, cx| {
3965 buffer.edit(
3966 ranges.iter().map(|range| (range.clone(), text)),
3967 this.autoindent_mode.clone(),
3968 cx,
3969 );
3970 });
3971 }
3972 for (buffer, edits) in linked_edits {
3973 buffer.update(cx, |buffer, cx| {
3974 let snapshot = buffer.snapshot();
3975 let edits = edits
3976 .into_iter()
3977 .map(|(range, text)| {
3978 use text::ToPoint as TP;
3979 let end_point = TP::to_point(&range.end, &snapshot);
3980 let start_point = TP::to_point(&range.start, &snapshot);
3981 (start_point..end_point, text)
3982 })
3983 .sorted_by_key(|(range, _)| range.start)
3984 .collect::<Vec<_>>();
3985 buffer.edit(edits, None, cx);
3986 })
3987 }
3988
3989 this.refresh_inline_completion(true, false, cx);
3990 });
3991
3992 let show_new_completions_on_confirm = completion
3993 .confirm
3994 .as_ref()
3995 .map_or(false, |confirm| confirm(intent, cx));
3996 if show_new_completions_on_confirm {
3997 self.show_completions(&ShowCompletions { trigger: None }, cx);
3998 }
3999
4000 let provider = self.completion_provider.as_ref()?;
4001 drop(completion);
4002 let apply_edits = provider.apply_additional_edits_for_completion(
4003 buffer_handle,
4004 completions_menu.completions.clone(),
4005 candidate_id,
4006 true,
4007 cx,
4008 );
4009
4010 let editor_settings = EditorSettings::get_global(cx);
4011 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4012 // After the code completion is finished, users often want to know what signatures are needed.
4013 // so we should automatically call signature_help
4014 self.show_signature_help(&ShowSignatureHelp, cx);
4015 }
4016
4017 Some(cx.foreground_executor().spawn(async move {
4018 apply_edits.await?;
4019 Ok(())
4020 }))
4021 }
4022
4023 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4024 let mut context_menu = self.context_menu.borrow_mut();
4025 if let Some(CodeContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4026 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4027 // Toggle if we're selecting the same one
4028 *context_menu = None;
4029 cx.notify();
4030 return;
4031 } else {
4032 // Otherwise, clear it and start a new one
4033 *context_menu = None;
4034 cx.notify();
4035 }
4036 }
4037 drop(context_menu);
4038 let snapshot = self.snapshot(cx);
4039 let deployed_from_indicator = action.deployed_from_indicator;
4040 let mut task = self.code_actions_task.take();
4041 let action = action.clone();
4042 cx.spawn(|editor, mut cx| async move {
4043 while let Some(prev_task) = task {
4044 prev_task.await.log_err();
4045 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4046 }
4047
4048 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4049 if editor.focus_handle.is_focused(cx) {
4050 let multibuffer_point = action
4051 .deployed_from_indicator
4052 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4053 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4054 let (buffer, buffer_row) = snapshot
4055 .buffer_snapshot
4056 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4057 .and_then(|(buffer_snapshot, range)| {
4058 editor
4059 .buffer
4060 .read(cx)
4061 .buffer(buffer_snapshot.remote_id())
4062 .map(|buffer| (buffer, range.start.row))
4063 })?;
4064 let (_, code_actions) = editor
4065 .available_code_actions
4066 .clone()
4067 .and_then(|(location, code_actions)| {
4068 let snapshot = location.buffer.read(cx).snapshot();
4069 let point_range = location.range.to_point(&snapshot);
4070 let point_range = point_range.start.row..=point_range.end.row;
4071 if point_range.contains(&buffer_row) {
4072 Some((location, code_actions))
4073 } else {
4074 None
4075 }
4076 })
4077 .unzip();
4078 let buffer_id = buffer.read(cx).remote_id();
4079 let tasks = editor
4080 .tasks
4081 .get(&(buffer_id, buffer_row))
4082 .map(|t| Arc::new(t.to_owned()));
4083 if tasks.is_none() && code_actions.is_none() {
4084 return None;
4085 }
4086
4087 editor.completion_tasks.clear();
4088 editor.discard_inline_completion(false, cx);
4089 let task_context =
4090 tasks
4091 .as_ref()
4092 .zip(editor.project.clone())
4093 .map(|(tasks, project)| {
4094 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4095 });
4096
4097 Some(cx.spawn(|editor, mut cx| async move {
4098 let task_context = match task_context {
4099 Some(task_context) => task_context.await,
4100 None => None,
4101 };
4102 let resolved_tasks =
4103 tasks.zip(task_context).map(|(tasks, task_context)| {
4104 Rc::new(ResolvedTasks {
4105 templates: tasks.resolve(&task_context).collect(),
4106 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4107 multibuffer_point.row,
4108 tasks.column,
4109 )),
4110 })
4111 });
4112 let spawn_straight_away = resolved_tasks
4113 .as_ref()
4114 .map_or(false, |tasks| tasks.templates.len() == 1)
4115 && code_actions
4116 .as_ref()
4117 .map_or(true, |actions| actions.is_empty());
4118 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4119 *editor.context_menu.borrow_mut() =
4120 Some(CodeContextMenu::CodeActions(CodeActionsMenu {
4121 buffer,
4122 actions: CodeActionContents {
4123 tasks: resolved_tasks,
4124 actions: code_actions,
4125 },
4126 selected_item: Default::default(),
4127 scroll_handle: UniformListScrollHandle::default(),
4128 deployed_from_indicator,
4129 }));
4130 if spawn_straight_away {
4131 if let Some(task) = editor.confirm_code_action(
4132 &ConfirmCodeAction { item_ix: Some(0) },
4133 cx,
4134 ) {
4135 cx.notify();
4136 return task;
4137 }
4138 }
4139 cx.notify();
4140 Task::ready(Ok(()))
4141 }) {
4142 task.await
4143 } else {
4144 Ok(())
4145 }
4146 }))
4147 } else {
4148 Some(Task::ready(Ok(())))
4149 }
4150 })?;
4151 if let Some(task) = spawned_test_task {
4152 task.await?;
4153 }
4154
4155 Ok::<_, anyhow::Error>(())
4156 })
4157 .detach_and_log_err(cx);
4158 }
4159
4160 pub fn confirm_code_action(
4161 &mut self,
4162 action: &ConfirmCodeAction,
4163 cx: &mut ViewContext<Self>,
4164 ) -> Option<Task<Result<()>>> {
4165 let actions_menu = if let CodeContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4166 menu
4167 } else {
4168 return None;
4169 };
4170 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4171 let action = actions_menu.actions.get(action_ix)?;
4172 let title = action.label();
4173 let buffer = actions_menu.buffer;
4174 let workspace = self.workspace()?;
4175
4176 match action {
4177 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4178 workspace.update(cx, |workspace, cx| {
4179 workspace::tasks::schedule_resolved_task(
4180 workspace,
4181 task_source_kind,
4182 resolved_task,
4183 false,
4184 cx,
4185 );
4186
4187 Some(Task::ready(Ok(())))
4188 })
4189 }
4190 CodeActionsItem::CodeAction {
4191 excerpt_id,
4192 action,
4193 provider,
4194 } => {
4195 let apply_code_action =
4196 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4197 let workspace = workspace.downgrade();
4198 Some(cx.spawn(|editor, cx| async move {
4199 let project_transaction = apply_code_action.await?;
4200 Self::open_project_transaction(
4201 &editor,
4202 workspace,
4203 project_transaction,
4204 title,
4205 cx,
4206 )
4207 .await
4208 }))
4209 }
4210 }
4211 }
4212
4213 pub async fn open_project_transaction(
4214 this: &WeakView<Editor>,
4215 workspace: WeakView<Workspace>,
4216 transaction: ProjectTransaction,
4217 title: String,
4218 mut cx: AsyncWindowContext,
4219 ) -> Result<()> {
4220 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4221 cx.update(|cx| {
4222 entries.sort_unstable_by_key(|(buffer, _)| {
4223 buffer.read(cx).file().map(|f| f.path().clone())
4224 });
4225 })?;
4226
4227 // If the project transaction's edits are all contained within this editor, then
4228 // avoid opening a new editor to display them.
4229
4230 if let Some((buffer, transaction)) = entries.first() {
4231 if entries.len() == 1 {
4232 let excerpt = this.update(&mut cx, |editor, cx| {
4233 editor
4234 .buffer()
4235 .read(cx)
4236 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4237 })?;
4238 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4239 if excerpted_buffer == *buffer {
4240 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4241 let excerpt_range = excerpt_range.to_offset(buffer);
4242 buffer
4243 .edited_ranges_for_transaction::<usize>(transaction)
4244 .all(|range| {
4245 excerpt_range.start <= range.start
4246 && excerpt_range.end >= range.end
4247 })
4248 })?;
4249
4250 if all_edits_within_excerpt {
4251 return Ok(());
4252 }
4253 }
4254 }
4255 }
4256 } else {
4257 return Ok(());
4258 }
4259
4260 let mut ranges_to_highlight = Vec::new();
4261 let excerpt_buffer = cx.new_model(|cx| {
4262 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4263 for (buffer_handle, transaction) in &entries {
4264 let buffer = buffer_handle.read(cx);
4265 ranges_to_highlight.extend(
4266 multibuffer.push_excerpts_with_context_lines(
4267 buffer_handle.clone(),
4268 buffer
4269 .edited_ranges_for_transaction::<usize>(transaction)
4270 .collect(),
4271 DEFAULT_MULTIBUFFER_CONTEXT,
4272 cx,
4273 ),
4274 );
4275 }
4276 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4277 multibuffer
4278 })?;
4279
4280 workspace.update(&mut cx, |workspace, cx| {
4281 let project = workspace.project().clone();
4282 let editor =
4283 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4284 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4285 editor.update(cx, |editor, cx| {
4286 editor.highlight_background::<Self>(
4287 &ranges_to_highlight,
4288 |theme| theme.editor_highlighted_line_background,
4289 cx,
4290 );
4291 });
4292 })?;
4293
4294 Ok(())
4295 }
4296
4297 pub fn clear_code_action_providers(&mut self) {
4298 self.code_action_providers.clear();
4299 self.available_code_actions.take();
4300 }
4301
4302 pub fn add_code_action_provider(
4303 &mut self,
4304 provider: Rc<dyn CodeActionProvider>,
4305 cx: &mut ViewContext<Self>,
4306 ) {
4307 if self
4308 .code_action_providers
4309 .iter()
4310 .any(|existing_provider| existing_provider.id() == provider.id())
4311 {
4312 return;
4313 }
4314
4315 self.code_action_providers.push(provider);
4316 self.refresh_code_actions(cx);
4317 }
4318
4319 pub fn remove_code_action_provider(&mut self, id: Arc<str>, cx: &mut ViewContext<Self>) {
4320 self.code_action_providers
4321 .retain(|provider| provider.id() != id);
4322 self.refresh_code_actions(cx);
4323 }
4324
4325 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4326 let buffer = self.buffer.read(cx);
4327 let newest_selection = self.selections.newest_anchor().clone();
4328 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4329 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4330 if start_buffer != end_buffer {
4331 return None;
4332 }
4333
4334 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4335 cx.background_executor()
4336 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4337 .await;
4338
4339 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4340 let providers = this.code_action_providers.clone();
4341 let tasks = this
4342 .code_action_providers
4343 .iter()
4344 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4345 .collect::<Vec<_>>();
4346 (providers, tasks)
4347 })?;
4348
4349 let mut actions = Vec::new();
4350 for (provider, provider_actions) in
4351 providers.into_iter().zip(future::join_all(tasks).await)
4352 {
4353 if let Some(provider_actions) = provider_actions.log_err() {
4354 actions.extend(provider_actions.into_iter().map(|action| {
4355 AvailableCodeAction {
4356 excerpt_id: newest_selection.start.excerpt_id,
4357 action,
4358 provider: provider.clone(),
4359 }
4360 }));
4361 }
4362 }
4363
4364 this.update(&mut cx, |this, cx| {
4365 this.available_code_actions = if actions.is_empty() {
4366 None
4367 } else {
4368 Some((
4369 Location {
4370 buffer: start_buffer,
4371 range: start..end,
4372 },
4373 actions.into(),
4374 ))
4375 };
4376 cx.notify();
4377 })
4378 }));
4379 None
4380 }
4381
4382 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4383 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4384 self.show_git_blame_inline = false;
4385
4386 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4387 cx.background_executor().timer(delay).await;
4388
4389 this.update(&mut cx, |this, cx| {
4390 this.show_git_blame_inline = true;
4391 cx.notify();
4392 })
4393 .log_err();
4394 }));
4395 }
4396 }
4397
4398 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4399 if self.pending_rename.is_some() {
4400 return None;
4401 }
4402
4403 let provider = self.semantics_provider.clone()?;
4404 let buffer = self.buffer.read(cx);
4405 let newest_selection = self.selections.newest_anchor().clone();
4406 let cursor_position = newest_selection.head();
4407 let (cursor_buffer, cursor_buffer_position) =
4408 buffer.text_anchor_for_position(cursor_position, cx)?;
4409 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4410 if cursor_buffer != tail_buffer {
4411 return None;
4412 }
4413 let debounce = EditorSettings::get_global(cx).lsp_highlight_debounce;
4414 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4415 cx.background_executor()
4416 .timer(Duration::from_millis(debounce))
4417 .await;
4418
4419 let highlights = if let Some(highlights) = cx
4420 .update(|cx| {
4421 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4422 })
4423 .ok()
4424 .flatten()
4425 {
4426 highlights.await.log_err()
4427 } else {
4428 None
4429 };
4430
4431 if let Some(highlights) = highlights {
4432 this.update(&mut cx, |this, cx| {
4433 if this.pending_rename.is_some() {
4434 return;
4435 }
4436
4437 let buffer_id = cursor_position.buffer_id;
4438 let buffer = this.buffer.read(cx);
4439 if !buffer
4440 .text_anchor_for_position(cursor_position, cx)
4441 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4442 {
4443 return;
4444 }
4445
4446 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4447 let mut write_ranges = Vec::new();
4448 let mut read_ranges = Vec::new();
4449 for highlight in highlights {
4450 for (excerpt_id, excerpt_range) in
4451 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4452 {
4453 let start = highlight
4454 .range
4455 .start
4456 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4457 let end = highlight
4458 .range
4459 .end
4460 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4461 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4462 continue;
4463 }
4464
4465 let range = Anchor {
4466 buffer_id,
4467 excerpt_id,
4468 text_anchor: start,
4469 }..Anchor {
4470 buffer_id,
4471 excerpt_id,
4472 text_anchor: end,
4473 };
4474 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4475 write_ranges.push(range);
4476 } else {
4477 read_ranges.push(range);
4478 }
4479 }
4480 }
4481
4482 this.highlight_background::<DocumentHighlightRead>(
4483 &read_ranges,
4484 |theme| theme.editor_document_highlight_read_background,
4485 cx,
4486 );
4487 this.highlight_background::<DocumentHighlightWrite>(
4488 &write_ranges,
4489 |theme| theme.editor_document_highlight_write_background,
4490 cx,
4491 );
4492 cx.notify();
4493 })
4494 .log_err();
4495 }
4496 }));
4497 None
4498 }
4499
4500 pub fn refresh_inline_completion(
4501 &mut self,
4502 debounce: bool,
4503 user_requested: bool,
4504 cx: &mut ViewContext<Self>,
4505 ) -> Option<()> {
4506 let provider = self.inline_completion_provider()?;
4507 let cursor = self.selections.newest_anchor().head();
4508 let (buffer, cursor_buffer_position) =
4509 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4510
4511 if !user_requested
4512 && (!self.enable_inline_completions
4513 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4514 || !self.is_focused(cx))
4515 {
4516 self.discard_inline_completion(false, cx);
4517 return None;
4518 }
4519
4520 self.update_visible_inline_completion(cx);
4521 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4522 Some(())
4523 }
4524
4525 fn cycle_inline_completion(
4526 &mut self,
4527 direction: Direction,
4528 cx: &mut ViewContext<Self>,
4529 ) -> Option<()> {
4530 let provider = self.inline_completion_provider()?;
4531 let cursor = self.selections.newest_anchor().head();
4532 let (buffer, cursor_buffer_position) =
4533 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4534 if !self.enable_inline_completions
4535 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4536 {
4537 return None;
4538 }
4539
4540 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4541 self.update_visible_inline_completion(cx);
4542
4543 Some(())
4544 }
4545
4546 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4547 if !self.has_active_inline_completion() {
4548 self.refresh_inline_completion(false, true, cx);
4549 return;
4550 }
4551
4552 self.update_visible_inline_completion(cx);
4553 }
4554
4555 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4556 self.show_cursor_names(cx);
4557 }
4558
4559 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4560 self.show_cursor_names = true;
4561 cx.notify();
4562 cx.spawn(|this, mut cx| async move {
4563 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4564 this.update(&mut cx, |this, cx| {
4565 this.show_cursor_names = false;
4566 cx.notify()
4567 })
4568 .ok()
4569 })
4570 .detach();
4571 }
4572
4573 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4574 if self.has_active_inline_completion() {
4575 self.cycle_inline_completion(Direction::Next, cx);
4576 } else {
4577 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4578 if is_copilot_disabled {
4579 cx.propagate();
4580 }
4581 }
4582 }
4583
4584 pub fn previous_inline_completion(
4585 &mut self,
4586 _: &PreviousInlineCompletion,
4587 cx: &mut ViewContext<Self>,
4588 ) {
4589 if self.has_active_inline_completion() {
4590 self.cycle_inline_completion(Direction::Prev, cx);
4591 } else {
4592 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4593 if is_copilot_disabled {
4594 cx.propagate();
4595 }
4596 }
4597 }
4598
4599 pub fn accept_inline_completion(
4600 &mut self,
4601 _: &AcceptInlineCompletion,
4602 cx: &mut ViewContext<Self>,
4603 ) {
4604 let buffer = self.buffer.read(cx);
4605 let snapshot = buffer.snapshot(cx);
4606 let selection = self.selections.newest_adjusted(cx);
4607 let cursor = selection.head();
4608 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
4609 let suggested_indents = snapshot.suggested_indents([cursor.row], cx);
4610 if let Some(suggested_indent) = suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
4611 {
4612 if cursor.column < suggested_indent.len
4613 && cursor.column <= current_indent.len
4614 && current_indent.len <= suggested_indent.len
4615 {
4616 self.tab(&Default::default(), cx);
4617 return;
4618 }
4619 }
4620
4621 if self.show_inline_completions_in_menu(cx) {
4622 self.hide_context_menu(cx);
4623 }
4624
4625 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4626 return;
4627 };
4628
4629 self.report_inline_completion_event(true, cx);
4630
4631 match &active_inline_completion.completion {
4632 InlineCompletion::Move(position) => {
4633 let position = *position;
4634 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4635 selections.select_anchor_ranges([position..position]);
4636 });
4637 }
4638 InlineCompletion::Edit(edits) => {
4639 if let Some(provider) = self.inline_completion_provider() {
4640 provider.accept(cx);
4641 }
4642
4643 let snapshot = self.buffer.read(cx).snapshot(cx);
4644 let last_edit_end = edits.last().unwrap().0.end.bias_right(&snapshot);
4645
4646 self.buffer.update(cx, |buffer, cx| {
4647 buffer.edit(edits.iter().cloned(), None, cx)
4648 });
4649
4650 self.change_selections(None, cx, |s| {
4651 s.select_anchor_ranges([last_edit_end..last_edit_end])
4652 });
4653
4654 self.update_visible_inline_completion(cx);
4655 if self.active_inline_completion.is_none() {
4656 self.refresh_inline_completion(true, true, cx);
4657 }
4658
4659 cx.notify();
4660 }
4661 }
4662 }
4663
4664 pub fn accept_partial_inline_completion(
4665 &mut self,
4666 _: &AcceptPartialInlineCompletion,
4667 cx: &mut ViewContext<Self>,
4668 ) {
4669 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4670 return;
4671 };
4672 if self.selections.count() != 1 {
4673 return;
4674 }
4675
4676 self.report_inline_completion_event(true, cx);
4677
4678 match &active_inline_completion.completion {
4679 InlineCompletion::Move(position) => {
4680 let position = *position;
4681 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4682 selections.select_anchor_ranges([position..position]);
4683 });
4684 }
4685 InlineCompletion::Edit(edits) => {
4686 if edits.len() == 1 && edits[0].0.start == edits[0].0.end {
4687 let text = edits[0].1.as_str();
4688 let mut partial_completion = text
4689 .chars()
4690 .by_ref()
4691 .take_while(|c| c.is_alphabetic())
4692 .collect::<String>();
4693 if partial_completion.is_empty() {
4694 partial_completion = text
4695 .chars()
4696 .by_ref()
4697 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4698 .collect::<String>();
4699 }
4700
4701 cx.emit(EditorEvent::InputHandled {
4702 utf16_range_to_replace: None,
4703 text: partial_completion.clone().into(),
4704 });
4705
4706 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4707
4708 self.refresh_inline_completion(true, true, cx);
4709 cx.notify();
4710 }
4711 }
4712 }
4713 }
4714
4715 fn discard_inline_completion(
4716 &mut self,
4717 should_report_inline_completion_event: bool,
4718 cx: &mut ViewContext<Self>,
4719 ) -> bool {
4720 if should_report_inline_completion_event {
4721 self.report_inline_completion_event(false, cx);
4722 }
4723
4724 if let Some(provider) = self.inline_completion_provider() {
4725 provider.discard(cx);
4726 }
4727
4728 self.take_active_inline_completion(cx).is_some()
4729 }
4730
4731 fn report_inline_completion_event(&self, accepted: bool, cx: &AppContext) {
4732 let Some(provider) = self.inline_completion_provider() else {
4733 return;
4734 };
4735 let Some(project) = self.project.as_ref() else {
4736 return;
4737 };
4738 let Some((_, buffer, _)) = self
4739 .buffer
4740 .read(cx)
4741 .excerpt_containing(self.selections.newest_anchor().head(), cx)
4742 else {
4743 return;
4744 };
4745
4746 let project = project.read(cx);
4747 let extension = buffer
4748 .read(cx)
4749 .file()
4750 .and_then(|file| Some(file.path().extension()?.to_string_lossy().to_string()));
4751 project.client().telemetry().report_inline_completion_event(
4752 provider.name().into(),
4753 accepted,
4754 extension,
4755 );
4756 }
4757
4758 pub fn has_active_inline_completion(&self) -> bool {
4759 self.active_inline_completion.is_some()
4760 }
4761
4762 fn take_active_inline_completion(
4763 &mut self,
4764 cx: &mut ViewContext<Self>,
4765 ) -> Option<InlineCompletion> {
4766 let active_inline_completion = self.active_inline_completion.take()?;
4767 self.splice_inlays(active_inline_completion.inlay_ids, Default::default(), cx);
4768 self.clear_highlights::<InlineCompletionHighlight>(cx);
4769 Some(active_inline_completion.completion)
4770 }
4771
4772 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4773 let selection = self.selections.newest_anchor();
4774 let cursor = selection.head();
4775 let multibuffer = self.buffer.read(cx).snapshot(cx);
4776 let offset_selection = selection.map(|endpoint| endpoint.to_offset(&multibuffer));
4777 let excerpt_id = cursor.excerpt_id;
4778
4779 let completions_menu_has_precedence = !self.show_inline_completions_in_menu(cx)
4780 && (self.context_menu.borrow().is_some()
4781 || (!self.completion_tasks.is_empty() && !self.has_active_inline_completion()));
4782 if completions_menu_has_precedence
4783 || !offset_selection.is_empty()
4784 || self
4785 .active_inline_completion
4786 .as_ref()
4787 .map_or(false, |completion| {
4788 let invalidation_range = completion.invalidation_range.to_offset(&multibuffer);
4789 let invalidation_range = invalidation_range.start..=invalidation_range.end;
4790 !invalidation_range.contains(&offset_selection.head())
4791 })
4792 {
4793 self.discard_inline_completion(false, cx);
4794 return None;
4795 }
4796
4797 self.take_active_inline_completion(cx);
4798 let provider = self.inline_completion_provider()?;
4799
4800 let (buffer, cursor_buffer_position) =
4801 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4802
4803 let completion = provider.suggest(&buffer, cursor_buffer_position, cx)?;
4804 let edits = completion
4805 .edits
4806 .into_iter()
4807 .flat_map(|(range, new_text)| {
4808 let start = multibuffer.anchor_in_excerpt(excerpt_id, range.start)?;
4809 let end = multibuffer.anchor_in_excerpt(excerpt_id, range.end)?;
4810 Some((start..end, new_text))
4811 })
4812 .collect::<Vec<_>>();
4813 if edits.is_empty() {
4814 return None;
4815 }
4816
4817 let first_edit_start = edits.first().unwrap().0.start;
4818 let edit_start_row = first_edit_start
4819 .to_point(&multibuffer)
4820 .row
4821 .saturating_sub(2);
4822
4823 let last_edit_end = edits.last().unwrap().0.end;
4824 let edit_end_row = cmp::min(
4825 multibuffer.max_point().row,
4826 last_edit_end.to_point(&multibuffer).row + 2,
4827 );
4828
4829 let cursor_row = cursor.to_point(&multibuffer).row;
4830
4831 let mut inlay_ids = Vec::new();
4832 let invalidation_row_range;
4833 let completion;
4834 if cursor_row < edit_start_row {
4835 invalidation_row_range = cursor_row..edit_end_row;
4836 completion = InlineCompletion::Move(first_edit_start);
4837 } else if cursor_row > edit_end_row {
4838 invalidation_row_range = edit_start_row..cursor_row;
4839 completion = InlineCompletion::Move(first_edit_start);
4840 } else {
4841 if edits
4842 .iter()
4843 .all(|(range, _)| range.to_offset(&multibuffer).is_empty())
4844 {
4845 let mut inlays = Vec::new();
4846 for (range, new_text) in &edits {
4847 let inlay = Inlay::inline_completion(
4848 post_inc(&mut self.next_inlay_id),
4849 range.start,
4850 new_text.as_str(),
4851 );
4852 inlay_ids.push(inlay.id);
4853 inlays.push(inlay);
4854 }
4855
4856 self.splice_inlays(vec![], inlays, cx);
4857 } else {
4858 let background_color = cx.theme().status().deleted_background;
4859 self.highlight_text::<InlineCompletionHighlight>(
4860 edits.iter().map(|(range, _)| range.clone()).collect(),
4861 HighlightStyle {
4862 background_color: Some(background_color),
4863 ..Default::default()
4864 },
4865 cx,
4866 );
4867 }
4868
4869 invalidation_row_range = edit_start_row..edit_end_row;
4870 completion = InlineCompletion::Edit(edits);
4871 };
4872
4873 let invalidation_range = multibuffer
4874 .anchor_before(Point::new(invalidation_row_range.start, 0))
4875 ..multibuffer.anchor_after(Point::new(
4876 invalidation_row_range.end,
4877 multibuffer.line_len(MultiBufferRow(invalidation_row_range.end)),
4878 ));
4879
4880 self.active_inline_completion = Some(InlineCompletionState {
4881 inlay_ids,
4882 completion,
4883 invalidation_range,
4884 });
4885
4886 if self.show_inline_completions_in_menu(cx) && self.has_active_completions_menu() {
4887 if let Some(hint) = self.inline_completion_menu_hint(cx) {
4888 match self.context_menu.borrow_mut().as_mut() {
4889 Some(CodeContextMenu::Completions(menu)) => {
4890 menu.show_inline_completion_hint(hint);
4891 }
4892 _ => {}
4893 }
4894 }
4895 }
4896
4897 cx.notify();
4898
4899 Some(())
4900 }
4901
4902 fn inline_completion_menu_hint(
4903 &mut self,
4904 cx: &mut ViewContext<Self>,
4905 ) -> Option<InlineCompletionMenuHint> {
4906 if self.has_active_inline_completion() {
4907 let provider_name = self.inline_completion_provider()?.display_name();
4908 let editor_snapshot = self.snapshot(cx);
4909
4910 let text = match &self.active_inline_completion.as_ref()?.completion {
4911 InlineCompletion::Edit(edits) => {
4912 inline_completion_edit_text(&editor_snapshot, edits, true, cx)
4913 }
4914 InlineCompletion::Move(target) => {
4915 let target_point =
4916 target.to_point(&editor_snapshot.display_snapshot.buffer_snapshot);
4917 let target_line = target_point.row + 1;
4918 InlineCompletionText::Move(
4919 format!("Jump to edit in line {}", target_line).into(),
4920 )
4921 }
4922 };
4923
4924 Some(InlineCompletionMenuHint {
4925 provider_name,
4926 text,
4927 })
4928 } else {
4929 None
4930 }
4931 }
4932
4933 pub fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4934 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4935 }
4936
4937 fn show_inline_completions_in_menu(&self, cx: &AppContext) -> bool {
4938 EditorSettings::get_global(cx).show_inline_completions_in_menu
4939 && self
4940 .inline_completion_provider()
4941 .map_or(false, |provider| provider.show_completions_in_menu())
4942 }
4943
4944 fn render_code_actions_indicator(
4945 &self,
4946 _style: &EditorStyle,
4947 row: DisplayRow,
4948 is_active: bool,
4949 cx: &mut ViewContext<Self>,
4950 ) -> Option<IconButton> {
4951 if self.available_code_actions.is_some() {
4952 Some(
4953 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4954 .shape(ui::IconButtonShape::Square)
4955 .icon_size(IconSize::XSmall)
4956 .icon_color(Color::Muted)
4957 .toggle_state(is_active)
4958 .tooltip({
4959 let focus_handle = self.focus_handle.clone();
4960 move |cx| {
4961 Tooltip::for_action_in(
4962 "Toggle Code Actions",
4963 &ToggleCodeActions {
4964 deployed_from_indicator: None,
4965 },
4966 &focus_handle,
4967 cx,
4968 )
4969 }
4970 })
4971 .on_click(cx.listener(move |editor, _e, cx| {
4972 editor.focus(cx);
4973 editor.toggle_code_actions(
4974 &ToggleCodeActions {
4975 deployed_from_indicator: Some(row),
4976 },
4977 cx,
4978 );
4979 })),
4980 )
4981 } else {
4982 None
4983 }
4984 }
4985
4986 fn clear_tasks(&mut self) {
4987 self.tasks.clear()
4988 }
4989
4990 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
4991 if self.tasks.insert(key, value).is_some() {
4992 // This case should hopefully be rare, but just in case...
4993 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4994 }
4995 }
4996
4997 fn build_tasks_context(
4998 project: &Model<Project>,
4999 buffer: &Model<Buffer>,
5000 buffer_row: u32,
5001 tasks: &Arc<RunnableTasks>,
5002 cx: &mut ViewContext<Self>,
5003 ) -> Task<Option<task::TaskContext>> {
5004 let position = Point::new(buffer_row, tasks.column);
5005 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5006 let location = Location {
5007 buffer: buffer.clone(),
5008 range: range_start..range_start,
5009 };
5010 // Fill in the environmental variables from the tree-sitter captures
5011 let mut captured_task_variables = TaskVariables::default();
5012 for (capture_name, value) in tasks.extra_variables.clone() {
5013 captured_task_variables.insert(
5014 task::VariableName::Custom(capture_name.into()),
5015 value.clone(),
5016 );
5017 }
5018 project.update(cx, |project, cx| {
5019 project.task_store().update(cx, |task_store, cx| {
5020 task_store.task_context_for_location(captured_task_variables, location, cx)
5021 })
5022 })
5023 }
5024
5025 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5026 let Some((workspace, _)) = self.workspace.clone() else {
5027 return;
5028 };
5029 let Some(project) = self.project.clone() else {
5030 return;
5031 };
5032
5033 // Try to find a closest, enclosing node using tree-sitter that has a
5034 // task
5035 let Some((buffer, buffer_row, tasks)) = self
5036 .find_enclosing_node_task(cx)
5037 // Or find the task that's closest in row-distance.
5038 .or_else(|| self.find_closest_task(cx))
5039 else {
5040 return;
5041 };
5042
5043 let reveal_strategy = action.reveal;
5044 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5045 cx.spawn(|_, mut cx| async move {
5046 let context = task_context.await?;
5047 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5048
5049 let resolved = resolved_task.resolved.as_mut()?;
5050 resolved.reveal = reveal_strategy;
5051
5052 workspace
5053 .update(&mut cx, |workspace, cx| {
5054 workspace::tasks::schedule_resolved_task(
5055 workspace,
5056 task_source_kind,
5057 resolved_task,
5058 false,
5059 cx,
5060 );
5061 })
5062 .ok()
5063 })
5064 .detach();
5065 }
5066
5067 fn find_closest_task(
5068 &mut self,
5069 cx: &mut ViewContext<Self>,
5070 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5071 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5072
5073 let ((buffer_id, row), tasks) = self
5074 .tasks
5075 .iter()
5076 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5077
5078 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5079 let tasks = Arc::new(tasks.to_owned());
5080 Some((buffer, *row, tasks))
5081 }
5082
5083 fn find_enclosing_node_task(
5084 &mut self,
5085 cx: &mut ViewContext<Self>,
5086 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5087 let snapshot = self.buffer.read(cx).snapshot(cx);
5088 let offset = self.selections.newest::<usize>(cx).head();
5089 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5090 let buffer_id = excerpt.buffer().remote_id();
5091
5092 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5093 let mut cursor = layer.node().walk();
5094
5095 while cursor.goto_first_child_for_byte(offset).is_some() {
5096 if cursor.node().end_byte() == offset {
5097 cursor.goto_next_sibling();
5098 }
5099 }
5100
5101 // Ascend to the smallest ancestor that contains the range and has a task.
5102 loop {
5103 let node = cursor.node();
5104 let node_range = node.byte_range();
5105 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5106
5107 // Check if this node contains our offset
5108 if node_range.start <= offset && node_range.end >= offset {
5109 // If it contains offset, check for task
5110 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5111 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5112 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5113 }
5114 }
5115
5116 if !cursor.goto_parent() {
5117 break;
5118 }
5119 }
5120 None
5121 }
5122
5123 fn render_run_indicator(
5124 &self,
5125 _style: &EditorStyle,
5126 is_active: bool,
5127 row: DisplayRow,
5128 cx: &mut ViewContext<Self>,
5129 ) -> IconButton {
5130 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5131 .shape(ui::IconButtonShape::Square)
5132 .icon_size(IconSize::XSmall)
5133 .icon_color(Color::Muted)
5134 .toggle_state(is_active)
5135 .on_click(cx.listener(move |editor, _e, cx| {
5136 editor.focus(cx);
5137 editor.toggle_code_actions(
5138 &ToggleCodeActions {
5139 deployed_from_indicator: Some(row),
5140 },
5141 cx,
5142 );
5143 }))
5144 }
5145
5146 #[cfg(any(feature = "test-support", test))]
5147 pub fn context_menu_visible(&self) -> bool {
5148 self.context_menu
5149 .borrow()
5150 .as_ref()
5151 .map_or(false, |menu| menu.visible())
5152 }
5153
5154 #[cfg(feature = "test-support")]
5155 pub fn context_menu_contains_inline_completion(&self) -> bool {
5156 self.context_menu
5157 .borrow()
5158 .as_ref()
5159 .map_or(false, |menu| match menu {
5160 CodeContextMenu::Completions(menu) => {
5161 menu.entries.borrow().first().map_or(false, |entry| {
5162 matches!(entry, CompletionEntry::InlineCompletionHint(_))
5163 })
5164 }
5165 CodeContextMenu::CodeActions(_) => false,
5166 })
5167 }
5168
5169 fn context_menu_origin(&self, cursor_position: DisplayPoint) -> Option<ContextMenuOrigin> {
5170 self.context_menu
5171 .borrow()
5172 .as_ref()
5173 .map(|menu| menu.origin(cursor_position))
5174 }
5175
5176 fn render_context_menu(
5177 &self,
5178 style: &EditorStyle,
5179 max_height_in_lines: u32,
5180 cx: &mut ViewContext<Editor>,
5181 ) -> Option<AnyElement> {
5182 self.context_menu.borrow().as_ref().and_then(|menu| {
5183 if menu.visible() {
5184 Some(menu.render(style, max_height_in_lines, cx))
5185 } else {
5186 None
5187 }
5188 })
5189 }
5190
5191 fn render_context_menu_aside(
5192 &self,
5193 style: &EditorStyle,
5194 max_size: Size<Pixels>,
5195 cx: &mut ViewContext<Editor>,
5196 ) -> Option<AnyElement> {
5197 self.context_menu.borrow().as_ref().and_then(|menu| {
5198 if menu.visible() {
5199 menu.render_aside(
5200 style,
5201 max_size,
5202 self.workspace.as_ref().map(|(w, _)| w.clone()),
5203 cx,
5204 )
5205 } else {
5206 None
5207 }
5208 })
5209 }
5210
5211 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<CodeContextMenu> {
5212 cx.notify();
5213 self.completion_tasks.clear();
5214 let context_menu = self.context_menu.borrow_mut().take();
5215 if context_menu.is_some() && !self.show_inline_completions_in_menu(cx) {
5216 self.update_visible_inline_completion(cx);
5217 }
5218 context_menu
5219 }
5220
5221 fn show_snippet_choices(
5222 &mut self,
5223 choices: &Vec<String>,
5224 selection: Range<Anchor>,
5225 cx: &mut ViewContext<Self>,
5226 ) {
5227 if selection.start.buffer_id.is_none() {
5228 return;
5229 }
5230 let buffer_id = selection.start.buffer_id.unwrap();
5231 let buffer = self.buffer().read(cx).buffer(buffer_id);
5232 let id = post_inc(&mut self.next_completion_id);
5233
5234 if let Some(buffer) = buffer {
5235 *self.context_menu.borrow_mut() = Some(CodeContextMenu::Completions(
5236 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
5237 ));
5238 }
5239 }
5240
5241 pub fn insert_snippet(
5242 &mut self,
5243 insertion_ranges: &[Range<usize>],
5244 snippet: Snippet,
5245 cx: &mut ViewContext<Self>,
5246 ) -> Result<()> {
5247 struct Tabstop<T> {
5248 is_end_tabstop: bool,
5249 ranges: Vec<Range<T>>,
5250 choices: Option<Vec<String>>,
5251 }
5252
5253 let tabstops = self.buffer.update(cx, |buffer, cx| {
5254 let snippet_text: Arc<str> = snippet.text.clone().into();
5255 buffer.edit(
5256 insertion_ranges
5257 .iter()
5258 .cloned()
5259 .map(|range| (range, snippet_text.clone())),
5260 Some(AutoindentMode::EachLine),
5261 cx,
5262 );
5263
5264 let snapshot = &*buffer.read(cx);
5265 let snippet = &snippet;
5266 snippet
5267 .tabstops
5268 .iter()
5269 .map(|tabstop| {
5270 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5271 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5272 });
5273 let mut tabstop_ranges = tabstop
5274 .ranges
5275 .iter()
5276 .flat_map(|tabstop_range| {
5277 let mut delta = 0_isize;
5278 insertion_ranges.iter().map(move |insertion_range| {
5279 let insertion_start = insertion_range.start as isize + delta;
5280 delta +=
5281 snippet.text.len() as isize - insertion_range.len() as isize;
5282
5283 let start = ((insertion_start + tabstop_range.start) as usize)
5284 .min(snapshot.len());
5285 let end = ((insertion_start + tabstop_range.end) as usize)
5286 .min(snapshot.len());
5287 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5288 })
5289 })
5290 .collect::<Vec<_>>();
5291 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5292
5293 Tabstop {
5294 is_end_tabstop,
5295 ranges: tabstop_ranges,
5296 choices: tabstop.choices.clone(),
5297 }
5298 })
5299 .collect::<Vec<_>>()
5300 });
5301 if let Some(tabstop) = tabstops.first() {
5302 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5303 s.select_ranges(tabstop.ranges.iter().cloned());
5304 });
5305
5306 if let Some(choices) = &tabstop.choices {
5307 if let Some(selection) = tabstop.ranges.first() {
5308 self.show_snippet_choices(choices, selection.clone(), cx)
5309 }
5310 }
5311
5312 // If we're already at the last tabstop and it's at the end of the snippet,
5313 // we're done, we don't need to keep the state around.
5314 if !tabstop.is_end_tabstop {
5315 let choices = tabstops
5316 .iter()
5317 .map(|tabstop| tabstop.choices.clone())
5318 .collect();
5319
5320 let ranges = tabstops
5321 .into_iter()
5322 .map(|tabstop| tabstop.ranges)
5323 .collect::<Vec<_>>();
5324
5325 self.snippet_stack.push(SnippetState {
5326 active_index: 0,
5327 ranges,
5328 choices,
5329 });
5330 }
5331
5332 // Check whether the just-entered snippet ends with an auto-closable bracket.
5333 if self.autoclose_regions.is_empty() {
5334 let snapshot = self.buffer.read(cx).snapshot(cx);
5335 for selection in &mut self.selections.all::<Point>(cx) {
5336 let selection_head = selection.head();
5337 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5338 continue;
5339 };
5340
5341 let mut bracket_pair = None;
5342 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5343 let prev_chars = snapshot
5344 .reversed_chars_at(selection_head)
5345 .collect::<String>();
5346 for (pair, enabled) in scope.brackets() {
5347 if enabled
5348 && pair.close
5349 && prev_chars.starts_with(pair.start.as_str())
5350 && next_chars.starts_with(pair.end.as_str())
5351 {
5352 bracket_pair = Some(pair.clone());
5353 break;
5354 }
5355 }
5356 if let Some(pair) = bracket_pair {
5357 let start = snapshot.anchor_after(selection_head);
5358 let end = snapshot.anchor_after(selection_head);
5359 self.autoclose_regions.push(AutocloseRegion {
5360 selection_id: selection.id,
5361 range: start..end,
5362 pair,
5363 });
5364 }
5365 }
5366 }
5367 }
5368 Ok(())
5369 }
5370
5371 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5372 self.move_to_snippet_tabstop(Bias::Right, cx)
5373 }
5374
5375 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5376 self.move_to_snippet_tabstop(Bias::Left, cx)
5377 }
5378
5379 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5380 if let Some(mut snippet) = self.snippet_stack.pop() {
5381 match bias {
5382 Bias::Left => {
5383 if snippet.active_index > 0 {
5384 snippet.active_index -= 1;
5385 } else {
5386 self.snippet_stack.push(snippet);
5387 return false;
5388 }
5389 }
5390 Bias::Right => {
5391 if snippet.active_index + 1 < snippet.ranges.len() {
5392 snippet.active_index += 1;
5393 } else {
5394 self.snippet_stack.push(snippet);
5395 return false;
5396 }
5397 }
5398 }
5399 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5400 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5401 s.select_anchor_ranges(current_ranges.iter().cloned())
5402 });
5403
5404 if let Some(choices) = &snippet.choices[snippet.active_index] {
5405 if let Some(selection) = current_ranges.first() {
5406 self.show_snippet_choices(&choices, selection.clone(), cx);
5407 }
5408 }
5409
5410 // If snippet state is not at the last tabstop, push it back on the stack
5411 if snippet.active_index + 1 < snippet.ranges.len() {
5412 self.snippet_stack.push(snippet);
5413 }
5414 return true;
5415 }
5416 }
5417
5418 false
5419 }
5420
5421 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5422 self.transact(cx, |this, cx| {
5423 this.select_all(&SelectAll, cx);
5424 this.insert("", cx);
5425 });
5426 }
5427
5428 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5429 self.transact(cx, |this, cx| {
5430 this.select_autoclose_pair(cx);
5431 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5432 if !this.linked_edit_ranges.is_empty() {
5433 let selections = this.selections.all::<MultiBufferPoint>(cx);
5434 let snapshot = this.buffer.read(cx).snapshot(cx);
5435
5436 for selection in selections.iter() {
5437 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5438 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5439 if selection_start.buffer_id != selection_end.buffer_id {
5440 continue;
5441 }
5442 if let Some(ranges) =
5443 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5444 {
5445 for (buffer, entries) in ranges {
5446 linked_ranges.entry(buffer).or_default().extend(entries);
5447 }
5448 }
5449 }
5450 }
5451
5452 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5453 if !this.selections.line_mode {
5454 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5455 for selection in &mut selections {
5456 if selection.is_empty() {
5457 let old_head = selection.head();
5458 let mut new_head =
5459 movement::left(&display_map, old_head.to_display_point(&display_map))
5460 .to_point(&display_map);
5461 if let Some((buffer, line_buffer_range)) = display_map
5462 .buffer_snapshot
5463 .buffer_line_for_row(MultiBufferRow(old_head.row))
5464 {
5465 let indent_size =
5466 buffer.indent_size_for_line(line_buffer_range.start.row);
5467 let indent_len = match indent_size.kind {
5468 IndentKind::Space => {
5469 buffer.settings_at(line_buffer_range.start, cx).tab_size
5470 }
5471 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5472 };
5473 if old_head.column <= indent_size.len && old_head.column > 0 {
5474 let indent_len = indent_len.get();
5475 new_head = cmp::min(
5476 new_head,
5477 MultiBufferPoint::new(
5478 old_head.row,
5479 ((old_head.column - 1) / indent_len) * indent_len,
5480 ),
5481 );
5482 }
5483 }
5484
5485 selection.set_head(new_head, SelectionGoal::None);
5486 }
5487 }
5488 }
5489
5490 this.signature_help_state.set_backspace_pressed(true);
5491 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5492 this.insert("", cx);
5493 let empty_str: Arc<str> = Arc::from("");
5494 for (buffer, edits) in linked_ranges {
5495 let snapshot = buffer.read(cx).snapshot();
5496 use text::ToPoint as TP;
5497
5498 let edits = edits
5499 .into_iter()
5500 .map(|range| {
5501 let end_point = TP::to_point(&range.end, &snapshot);
5502 let mut start_point = TP::to_point(&range.start, &snapshot);
5503
5504 if end_point == start_point {
5505 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5506 .saturating_sub(1);
5507 start_point =
5508 snapshot.clip_point(TP::to_point(&offset, &snapshot), Bias::Left);
5509 };
5510
5511 (start_point..end_point, empty_str.clone())
5512 })
5513 .sorted_by_key(|(range, _)| range.start)
5514 .collect::<Vec<_>>();
5515 buffer.update(cx, |this, cx| {
5516 this.edit(edits, None, cx);
5517 })
5518 }
5519 this.refresh_inline_completion(true, false, cx);
5520 linked_editing_ranges::refresh_linked_ranges(this, cx);
5521 });
5522 }
5523
5524 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5525 self.transact(cx, |this, cx| {
5526 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5527 let line_mode = s.line_mode;
5528 s.move_with(|map, selection| {
5529 if selection.is_empty() && !line_mode {
5530 let cursor = movement::right(map, selection.head());
5531 selection.end = cursor;
5532 selection.reversed = true;
5533 selection.goal = SelectionGoal::None;
5534 }
5535 })
5536 });
5537 this.insert("", cx);
5538 this.refresh_inline_completion(true, false, cx);
5539 });
5540 }
5541
5542 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5543 if self.move_to_prev_snippet_tabstop(cx) {
5544 return;
5545 }
5546
5547 self.outdent(&Outdent, cx);
5548 }
5549
5550 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5551 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5552 return;
5553 }
5554
5555 let mut selections = self.selections.all_adjusted(cx);
5556 let buffer = self.buffer.read(cx);
5557 let snapshot = buffer.snapshot(cx);
5558 let rows_iter = selections.iter().map(|s| s.head().row);
5559 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5560
5561 let mut edits = Vec::new();
5562 let mut prev_edited_row = 0;
5563 let mut row_delta = 0;
5564 for selection in &mut selections {
5565 if selection.start.row != prev_edited_row {
5566 row_delta = 0;
5567 }
5568 prev_edited_row = selection.end.row;
5569
5570 // If the selection is non-empty, then increase the indentation of the selected lines.
5571 if !selection.is_empty() {
5572 row_delta =
5573 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5574 continue;
5575 }
5576
5577 // If the selection is empty and the cursor is in the leading whitespace before the
5578 // suggested indentation, then auto-indent the line.
5579 let cursor = selection.head();
5580 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5581 if let Some(suggested_indent) =
5582 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5583 {
5584 if cursor.column < suggested_indent.len
5585 && cursor.column <= current_indent.len
5586 && current_indent.len <= suggested_indent.len
5587 {
5588 selection.start = Point::new(cursor.row, suggested_indent.len);
5589 selection.end = selection.start;
5590 if row_delta == 0 {
5591 edits.extend(Buffer::edit_for_indent_size_adjustment(
5592 cursor.row,
5593 current_indent,
5594 suggested_indent,
5595 ));
5596 row_delta = suggested_indent.len - current_indent.len;
5597 }
5598 continue;
5599 }
5600 }
5601
5602 // Otherwise, insert a hard or soft tab.
5603 let settings = buffer.settings_at(cursor, cx);
5604 let tab_size = if settings.hard_tabs {
5605 IndentSize::tab()
5606 } else {
5607 let tab_size = settings.tab_size.get();
5608 let char_column = snapshot
5609 .text_for_range(Point::new(cursor.row, 0)..cursor)
5610 .flat_map(str::chars)
5611 .count()
5612 + row_delta as usize;
5613 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5614 IndentSize::spaces(chars_to_next_tab_stop)
5615 };
5616 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5617 selection.end = selection.start;
5618 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5619 row_delta += tab_size.len;
5620 }
5621
5622 self.transact(cx, |this, cx| {
5623 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5624 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5625 this.refresh_inline_completion(true, false, cx);
5626 });
5627 }
5628
5629 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5630 if self.read_only(cx) {
5631 return;
5632 }
5633 let mut selections = self.selections.all::<Point>(cx);
5634 let mut prev_edited_row = 0;
5635 let mut row_delta = 0;
5636 let mut edits = Vec::new();
5637 let buffer = self.buffer.read(cx);
5638 let snapshot = buffer.snapshot(cx);
5639 for selection in &mut selections {
5640 if selection.start.row != prev_edited_row {
5641 row_delta = 0;
5642 }
5643 prev_edited_row = selection.end.row;
5644
5645 row_delta =
5646 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5647 }
5648
5649 self.transact(cx, |this, cx| {
5650 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5651 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5652 });
5653 }
5654
5655 fn indent_selection(
5656 buffer: &MultiBuffer,
5657 snapshot: &MultiBufferSnapshot,
5658 selection: &mut Selection<Point>,
5659 edits: &mut Vec<(Range<Point>, String)>,
5660 delta_for_start_row: u32,
5661 cx: &AppContext,
5662 ) -> u32 {
5663 let settings = buffer.settings_at(selection.start, cx);
5664 let tab_size = settings.tab_size.get();
5665 let indent_kind = if settings.hard_tabs {
5666 IndentKind::Tab
5667 } else {
5668 IndentKind::Space
5669 };
5670 let mut start_row = selection.start.row;
5671 let mut end_row = selection.end.row + 1;
5672
5673 // If a selection ends at the beginning of a line, don't indent
5674 // that last line.
5675 if selection.end.column == 0 && selection.end.row > selection.start.row {
5676 end_row -= 1;
5677 }
5678
5679 // Avoid re-indenting a row that has already been indented by a
5680 // previous selection, but still update this selection's column
5681 // to reflect that indentation.
5682 if delta_for_start_row > 0 {
5683 start_row += 1;
5684 selection.start.column += delta_for_start_row;
5685 if selection.end.row == selection.start.row {
5686 selection.end.column += delta_for_start_row;
5687 }
5688 }
5689
5690 let mut delta_for_end_row = 0;
5691 let has_multiple_rows = start_row + 1 != end_row;
5692 for row in start_row..end_row {
5693 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5694 let indent_delta = match (current_indent.kind, indent_kind) {
5695 (IndentKind::Space, IndentKind::Space) => {
5696 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5697 IndentSize::spaces(columns_to_next_tab_stop)
5698 }
5699 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5700 (_, IndentKind::Tab) => IndentSize::tab(),
5701 };
5702
5703 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5704 0
5705 } else {
5706 selection.start.column
5707 };
5708 let row_start = Point::new(row, start);
5709 edits.push((
5710 row_start..row_start,
5711 indent_delta.chars().collect::<String>(),
5712 ));
5713
5714 // Update this selection's endpoints to reflect the indentation.
5715 if row == selection.start.row {
5716 selection.start.column += indent_delta.len;
5717 }
5718 if row == selection.end.row {
5719 selection.end.column += indent_delta.len;
5720 delta_for_end_row = indent_delta.len;
5721 }
5722 }
5723
5724 if selection.start.row == selection.end.row {
5725 delta_for_start_row + delta_for_end_row
5726 } else {
5727 delta_for_end_row
5728 }
5729 }
5730
5731 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5732 if self.read_only(cx) {
5733 return;
5734 }
5735 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5736 let selections = self.selections.all::<Point>(cx);
5737 let mut deletion_ranges = Vec::new();
5738 let mut last_outdent = None;
5739 {
5740 let buffer = self.buffer.read(cx);
5741 let snapshot = buffer.snapshot(cx);
5742 for selection in &selections {
5743 let settings = buffer.settings_at(selection.start, cx);
5744 let tab_size = settings.tab_size.get();
5745 let mut rows = selection.spanned_rows(false, &display_map);
5746
5747 // Avoid re-outdenting a row that has already been outdented by a
5748 // previous selection.
5749 if let Some(last_row) = last_outdent {
5750 if last_row == rows.start {
5751 rows.start = rows.start.next_row();
5752 }
5753 }
5754 let has_multiple_rows = rows.len() > 1;
5755 for row in rows.iter_rows() {
5756 let indent_size = snapshot.indent_size_for_line(row);
5757 if indent_size.len > 0 {
5758 let deletion_len = match indent_size.kind {
5759 IndentKind::Space => {
5760 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5761 if columns_to_prev_tab_stop == 0 {
5762 tab_size
5763 } else {
5764 columns_to_prev_tab_stop
5765 }
5766 }
5767 IndentKind::Tab => 1,
5768 };
5769 let start = if has_multiple_rows
5770 || deletion_len > selection.start.column
5771 || indent_size.len < selection.start.column
5772 {
5773 0
5774 } else {
5775 selection.start.column - deletion_len
5776 };
5777 deletion_ranges.push(
5778 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5779 );
5780 last_outdent = Some(row);
5781 }
5782 }
5783 }
5784 }
5785
5786 self.transact(cx, |this, cx| {
5787 this.buffer.update(cx, |buffer, cx| {
5788 let empty_str: Arc<str> = Arc::default();
5789 buffer.edit(
5790 deletion_ranges
5791 .into_iter()
5792 .map(|range| (range, empty_str.clone())),
5793 None,
5794 cx,
5795 );
5796 });
5797 let selections = this.selections.all::<usize>(cx);
5798 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5799 });
5800 }
5801
5802 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
5803 if self.read_only(cx) {
5804 return;
5805 }
5806 let selections = self
5807 .selections
5808 .all::<usize>(cx)
5809 .into_iter()
5810 .map(|s| s.range());
5811
5812 self.transact(cx, |this, cx| {
5813 this.buffer.update(cx, |buffer, cx| {
5814 buffer.autoindent_ranges(selections, cx);
5815 });
5816 let selections = this.selections.all::<usize>(cx);
5817 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5818 });
5819 }
5820
5821 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5822 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5823 let selections = self.selections.all::<Point>(cx);
5824
5825 let mut new_cursors = Vec::new();
5826 let mut edit_ranges = Vec::new();
5827 let mut selections = selections.iter().peekable();
5828 while let Some(selection) = selections.next() {
5829 let mut rows = selection.spanned_rows(false, &display_map);
5830 let goal_display_column = selection.head().to_display_point(&display_map).column();
5831
5832 // Accumulate contiguous regions of rows that we want to delete.
5833 while let Some(next_selection) = selections.peek() {
5834 let next_rows = next_selection.spanned_rows(false, &display_map);
5835 if next_rows.start <= rows.end {
5836 rows.end = next_rows.end;
5837 selections.next().unwrap();
5838 } else {
5839 break;
5840 }
5841 }
5842
5843 let buffer = &display_map.buffer_snapshot;
5844 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5845 let edit_end;
5846 let cursor_buffer_row;
5847 if buffer.max_point().row >= rows.end.0 {
5848 // If there's a line after the range, delete the \n from the end of the row range
5849 // and position the cursor on the next line.
5850 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5851 cursor_buffer_row = rows.end;
5852 } else {
5853 // If there isn't a line after the range, delete the \n from the line before the
5854 // start of the row range and position the cursor there.
5855 edit_start = edit_start.saturating_sub(1);
5856 edit_end = buffer.len();
5857 cursor_buffer_row = rows.start.previous_row();
5858 }
5859
5860 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5861 *cursor.column_mut() =
5862 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5863
5864 new_cursors.push((
5865 selection.id,
5866 buffer.anchor_after(cursor.to_point(&display_map)),
5867 ));
5868 edit_ranges.push(edit_start..edit_end);
5869 }
5870
5871 self.transact(cx, |this, cx| {
5872 let buffer = this.buffer.update(cx, |buffer, cx| {
5873 let empty_str: Arc<str> = Arc::default();
5874 buffer.edit(
5875 edit_ranges
5876 .into_iter()
5877 .map(|range| (range, empty_str.clone())),
5878 None,
5879 cx,
5880 );
5881 buffer.snapshot(cx)
5882 });
5883 let new_selections = new_cursors
5884 .into_iter()
5885 .map(|(id, cursor)| {
5886 let cursor = cursor.to_point(&buffer);
5887 Selection {
5888 id,
5889 start: cursor,
5890 end: cursor,
5891 reversed: false,
5892 goal: SelectionGoal::None,
5893 }
5894 })
5895 .collect();
5896
5897 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5898 s.select(new_selections);
5899 });
5900 });
5901 }
5902
5903 pub fn join_lines_impl(&mut self, insert_whitespace: bool, cx: &mut ViewContext<Self>) {
5904 if self.read_only(cx) {
5905 return;
5906 }
5907 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5908 for selection in self.selections.all::<Point>(cx) {
5909 let start = MultiBufferRow(selection.start.row);
5910 // Treat single line selections as if they include the next line. Otherwise this action
5911 // would do nothing for single line selections individual cursors.
5912 let end = if selection.start.row == selection.end.row {
5913 MultiBufferRow(selection.start.row + 1)
5914 } else {
5915 MultiBufferRow(selection.end.row)
5916 };
5917
5918 if let Some(last_row_range) = row_ranges.last_mut() {
5919 if start <= last_row_range.end {
5920 last_row_range.end = end;
5921 continue;
5922 }
5923 }
5924 row_ranges.push(start..end);
5925 }
5926
5927 let snapshot = self.buffer.read(cx).snapshot(cx);
5928 let mut cursor_positions = Vec::new();
5929 for row_range in &row_ranges {
5930 let anchor = snapshot.anchor_before(Point::new(
5931 row_range.end.previous_row().0,
5932 snapshot.line_len(row_range.end.previous_row()),
5933 ));
5934 cursor_positions.push(anchor..anchor);
5935 }
5936
5937 self.transact(cx, |this, cx| {
5938 for row_range in row_ranges.into_iter().rev() {
5939 for row in row_range.iter_rows().rev() {
5940 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5941 let next_line_row = row.next_row();
5942 let indent = snapshot.indent_size_for_line(next_line_row);
5943 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5944
5945 let replace =
5946 if snapshot.line_len(next_line_row) > indent.len && insert_whitespace {
5947 " "
5948 } else {
5949 ""
5950 };
5951
5952 this.buffer.update(cx, |buffer, cx| {
5953 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5954 });
5955 }
5956 }
5957
5958 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5959 s.select_anchor_ranges(cursor_positions)
5960 });
5961 });
5962 }
5963
5964 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5965 self.join_lines_impl(true, cx);
5966 }
5967
5968 pub fn sort_lines_case_sensitive(
5969 &mut self,
5970 _: &SortLinesCaseSensitive,
5971 cx: &mut ViewContext<Self>,
5972 ) {
5973 self.manipulate_lines(cx, |lines| lines.sort())
5974 }
5975
5976 pub fn sort_lines_case_insensitive(
5977 &mut self,
5978 _: &SortLinesCaseInsensitive,
5979 cx: &mut ViewContext<Self>,
5980 ) {
5981 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5982 }
5983
5984 pub fn unique_lines_case_insensitive(
5985 &mut self,
5986 _: &UniqueLinesCaseInsensitive,
5987 cx: &mut ViewContext<Self>,
5988 ) {
5989 self.manipulate_lines(cx, |lines| {
5990 let mut seen = HashSet::default();
5991 lines.retain(|line| seen.insert(line.to_lowercase()));
5992 })
5993 }
5994
5995 pub fn unique_lines_case_sensitive(
5996 &mut self,
5997 _: &UniqueLinesCaseSensitive,
5998 cx: &mut ViewContext<Self>,
5999 ) {
6000 self.manipulate_lines(cx, |lines| {
6001 let mut seen = HashSet::default();
6002 lines.retain(|line| seen.insert(*line));
6003 })
6004 }
6005
6006 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6007 let mut revert_changes = HashMap::default();
6008 let snapshot = self.snapshot(cx);
6009 for hunk in hunks_for_ranges(
6010 Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter(),
6011 &snapshot,
6012 ) {
6013 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6014 }
6015 if !revert_changes.is_empty() {
6016 self.transact(cx, |editor, cx| {
6017 editor.revert(revert_changes, cx);
6018 });
6019 }
6020 }
6021
6022 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6023 let Some(project) = self.project.clone() else {
6024 return;
6025 };
6026 self.reload(project, cx).detach_and_notify_err(cx);
6027 }
6028
6029 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6030 let revert_changes = self.gather_revert_changes(&self.selections.all(cx), cx);
6031 if !revert_changes.is_empty() {
6032 self.transact(cx, |editor, cx| {
6033 editor.revert(revert_changes, cx);
6034 });
6035 }
6036 }
6037
6038 fn revert_hunk(&mut self, hunk: HoveredHunk, cx: &mut ViewContext<Editor>) {
6039 let snapshot = self.buffer.read(cx).read(cx);
6040 if let Some(hunk) = crate::hunk_diff::to_diff_hunk(&hunk, &snapshot) {
6041 drop(snapshot);
6042 let mut revert_changes = HashMap::default();
6043 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6044 if !revert_changes.is_empty() {
6045 self.revert(revert_changes, cx)
6046 }
6047 }
6048 }
6049
6050 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6051 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6052 let project_path = buffer.read(cx).project_path(cx)?;
6053 let project = self.project.as_ref()?.read(cx);
6054 let entry = project.entry_for_path(&project_path, cx)?;
6055 let parent = match &entry.canonical_path {
6056 Some(canonical_path) => canonical_path.to_path_buf(),
6057 None => project.absolute_path(&project_path, cx)?,
6058 }
6059 .parent()?
6060 .to_path_buf();
6061 Some(parent)
6062 }) {
6063 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6064 }
6065 }
6066
6067 fn gather_revert_changes(
6068 &mut self,
6069 selections: &[Selection<Point>],
6070 cx: &mut ViewContext<Editor>,
6071 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6072 let mut revert_changes = HashMap::default();
6073 let snapshot = self.snapshot(cx);
6074 for hunk in hunks_for_selections(&snapshot, selections) {
6075 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6076 }
6077 revert_changes
6078 }
6079
6080 pub fn prepare_revert_change(
6081 &mut self,
6082 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6083 hunk: &MultiBufferDiffHunk,
6084 cx: &AppContext,
6085 ) -> Option<()> {
6086 let buffer = self.buffer.read(cx).buffer(hunk.buffer_id)?;
6087 let buffer = buffer.read(cx);
6088 let change_set = &self.diff_map.diff_bases.get(&hunk.buffer_id)?.change_set;
6089 let original_text = change_set
6090 .read(cx)
6091 .base_text
6092 .as_ref()?
6093 .read(cx)
6094 .as_rope()
6095 .slice(hunk.diff_base_byte_range.clone());
6096 let buffer_snapshot = buffer.snapshot();
6097 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6098 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6099 probe
6100 .0
6101 .start
6102 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6103 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6104 }) {
6105 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6106 Some(())
6107 } else {
6108 None
6109 }
6110 }
6111
6112 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6113 self.manipulate_lines(cx, |lines| lines.reverse())
6114 }
6115
6116 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6117 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6118 }
6119
6120 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6121 where
6122 Fn: FnMut(&mut Vec<&str>),
6123 {
6124 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6125 let buffer = self.buffer.read(cx).snapshot(cx);
6126
6127 let mut edits = Vec::new();
6128
6129 let selections = self.selections.all::<Point>(cx);
6130 let mut selections = selections.iter().peekable();
6131 let mut contiguous_row_selections = Vec::new();
6132 let mut new_selections = Vec::new();
6133 let mut added_lines = 0;
6134 let mut removed_lines = 0;
6135
6136 while let Some(selection) = selections.next() {
6137 let (start_row, end_row) = consume_contiguous_rows(
6138 &mut contiguous_row_selections,
6139 selection,
6140 &display_map,
6141 &mut selections,
6142 );
6143
6144 let start_point = Point::new(start_row.0, 0);
6145 let end_point = Point::new(
6146 end_row.previous_row().0,
6147 buffer.line_len(end_row.previous_row()),
6148 );
6149 let text = buffer
6150 .text_for_range(start_point..end_point)
6151 .collect::<String>();
6152
6153 let mut lines = text.split('\n').collect_vec();
6154
6155 let lines_before = lines.len();
6156 callback(&mut lines);
6157 let lines_after = lines.len();
6158
6159 edits.push((start_point..end_point, lines.join("\n")));
6160
6161 // Selections must change based on added and removed line count
6162 let start_row =
6163 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6164 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6165 new_selections.push(Selection {
6166 id: selection.id,
6167 start: start_row,
6168 end: end_row,
6169 goal: SelectionGoal::None,
6170 reversed: selection.reversed,
6171 });
6172
6173 if lines_after > lines_before {
6174 added_lines += lines_after - lines_before;
6175 } else if lines_before > lines_after {
6176 removed_lines += lines_before - lines_after;
6177 }
6178 }
6179
6180 self.transact(cx, |this, cx| {
6181 let buffer = this.buffer.update(cx, |buffer, cx| {
6182 buffer.edit(edits, None, cx);
6183 buffer.snapshot(cx)
6184 });
6185
6186 // Recalculate offsets on newly edited buffer
6187 let new_selections = new_selections
6188 .iter()
6189 .map(|s| {
6190 let start_point = Point::new(s.start.0, 0);
6191 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6192 Selection {
6193 id: s.id,
6194 start: buffer.point_to_offset(start_point),
6195 end: buffer.point_to_offset(end_point),
6196 goal: s.goal,
6197 reversed: s.reversed,
6198 }
6199 })
6200 .collect();
6201
6202 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6203 s.select(new_selections);
6204 });
6205
6206 this.request_autoscroll(Autoscroll::fit(), cx);
6207 });
6208 }
6209
6210 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6211 self.manipulate_text(cx, |text| text.to_uppercase())
6212 }
6213
6214 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6215 self.manipulate_text(cx, |text| text.to_lowercase())
6216 }
6217
6218 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6219 self.manipulate_text(cx, |text| {
6220 text.split('\n')
6221 .map(|line| line.to_case(Case::Title))
6222 .join("\n")
6223 })
6224 }
6225
6226 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6227 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6228 }
6229
6230 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6231 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6232 }
6233
6234 pub fn convert_to_upper_camel_case(
6235 &mut self,
6236 _: &ConvertToUpperCamelCase,
6237 cx: &mut ViewContext<Self>,
6238 ) {
6239 self.manipulate_text(cx, |text| {
6240 text.split('\n')
6241 .map(|line| line.to_case(Case::UpperCamel))
6242 .join("\n")
6243 })
6244 }
6245
6246 pub fn convert_to_lower_camel_case(
6247 &mut self,
6248 _: &ConvertToLowerCamelCase,
6249 cx: &mut ViewContext<Self>,
6250 ) {
6251 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6252 }
6253
6254 pub fn convert_to_opposite_case(
6255 &mut self,
6256 _: &ConvertToOppositeCase,
6257 cx: &mut ViewContext<Self>,
6258 ) {
6259 self.manipulate_text(cx, |text| {
6260 text.chars()
6261 .fold(String::with_capacity(text.len()), |mut t, c| {
6262 if c.is_uppercase() {
6263 t.extend(c.to_lowercase());
6264 } else {
6265 t.extend(c.to_uppercase());
6266 }
6267 t
6268 })
6269 })
6270 }
6271
6272 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6273 where
6274 Fn: FnMut(&str) -> String,
6275 {
6276 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6277 let buffer = self.buffer.read(cx).snapshot(cx);
6278
6279 let mut new_selections = Vec::new();
6280 let mut edits = Vec::new();
6281 let mut selection_adjustment = 0i32;
6282
6283 for selection in self.selections.all::<usize>(cx) {
6284 let selection_is_empty = selection.is_empty();
6285
6286 let (start, end) = if selection_is_empty {
6287 let word_range = movement::surrounding_word(
6288 &display_map,
6289 selection.start.to_display_point(&display_map),
6290 );
6291 let start = word_range.start.to_offset(&display_map, Bias::Left);
6292 let end = word_range.end.to_offset(&display_map, Bias::Left);
6293 (start, end)
6294 } else {
6295 (selection.start, selection.end)
6296 };
6297
6298 let text = buffer.text_for_range(start..end).collect::<String>();
6299 let old_length = text.len() as i32;
6300 let text = callback(&text);
6301
6302 new_selections.push(Selection {
6303 start: (start as i32 - selection_adjustment) as usize,
6304 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6305 goal: SelectionGoal::None,
6306 ..selection
6307 });
6308
6309 selection_adjustment += old_length - text.len() as i32;
6310
6311 edits.push((start..end, text));
6312 }
6313
6314 self.transact(cx, |this, cx| {
6315 this.buffer.update(cx, |buffer, cx| {
6316 buffer.edit(edits, None, cx);
6317 });
6318
6319 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6320 s.select(new_selections);
6321 });
6322
6323 this.request_autoscroll(Autoscroll::fit(), cx);
6324 });
6325 }
6326
6327 pub fn duplicate(&mut self, upwards: bool, whole_lines: bool, cx: &mut ViewContext<Self>) {
6328 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6329 let buffer = &display_map.buffer_snapshot;
6330 let selections = self.selections.all::<Point>(cx);
6331
6332 let mut edits = Vec::new();
6333 let mut selections_iter = selections.iter().peekable();
6334 while let Some(selection) = selections_iter.next() {
6335 let mut rows = selection.spanned_rows(false, &display_map);
6336 // duplicate line-wise
6337 if whole_lines || selection.start == selection.end {
6338 // Avoid duplicating the same lines twice.
6339 while let Some(next_selection) = selections_iter.peek() {
6340 let next_rows = next_selection.spanned_rows(false, &display_map);
6341 if next_rows.start < rows.end {
6342 rows.end = next_rows.end;
6343 selections_iter.next().unwrap();
6344 } else {
6345 break;
6346 }
6347 }
6348
6349 // Copy the text from the selected row region and splice it either at the start
6350 // or end of the region.
6351 let start = Point::new(rows.start.0, 0);
6352 let end = Point::new(
6353 rows.end.previous_row().0,
6354 buffer.line_len(rows.end.previous_row()),
6355 );
6356 let text = buffer
6357 .text_for_range(start..end)
6358 .chain(Some("\n"))
6359 .collect::<String>();
6360 let insert_location = if upwards {
6361 Point::new(rows.end.0, 0)
6362 } else {
6363 start
6364 };
6365 edits.push((insert_location..insert_location, text));
6366 } else {
6367 // duplicate character-wise
6368 let start = selection.start;
6369 let end = selection.end;
6370 let text = buffer.text_for_range(start..end).collect::<String>();
6371 edits.push((selection.end..selection.end, text));
6372 }
6373 }
6374
6375 self.transact(cx, |this, cx| {
6376 this.buffer.update(cx, |buffer, cx| {
6377 buffer.edit(edits, None, cx);
6378 });
6379
6380 this.request_autoscroll(Autoscroll::fit(), cx);
6381 });
6382 }
6383
6384 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6385 self.duplicate(true, true, cx);
6386 }
6387
6388 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6389 self.duplicate(false, true, cx);
6390 }
6391
6392 pub fn duplicate_selection(&mut self, _: &DuplicateSelection, cx: &mut ViewContext<Self>) {
6393 self.duplicate(false, false, cx);
6394 }
6395
6396 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6397 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6398 let buffer = self.buffer.read(cx).snapshot(cx);
6399
6400 let mut edits = Vec::new();
6401 let mut unfold_ranges = Vec::new();
6402 let mut refold_creases = Vec::new();
6403
6404 let selections = self.selections.all::<Point>(cx);
6405 let mut selections = selections.iter().peekable();
6406 let mut contiguous_row_selections = Vec::new();
6407 let mut new_selections = Vec::new();
6408
6409 while let Some(selection) = selections.next() {
6410 // Find all the selections that span a contiguous row range
6411 let (start_row, end_row) = consume_contiguous_rows(
6412 &mut contiguous_row_selections,
6413 selection,
6414 &display_map,
6415 &mut selections,
6416 );
6417
6418 // Move the text spanned by the row range to be before the line preceding the row range
6419 if start_row.0 > 0 {
6420 let range_to_move = Point::new(
6421 start_row.previous_row().0,
6422 buffer.line_len(start_row.previous_row()),
6423 )
6424 ..Point::new(
6425 end_row.previous_row().0,
6426 buffer.line_len(end_row.previous_row()),
6427 );
6428 let insertion_point = display_map
6429 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6430 .0;
6431
6432 // Don't move lines across excerpts
6433 if buffer
6434 .excerpt_boundaries_in_range((
6435 Bound::Excluded(insertion_point),
6436 Bound::Included(range_to_move.end),
6437 ))
6438 .next()
6439 .is_none()
6440 {
6441 let text = buffer
6442 .text_for_range(range_to_move.clone())
6443 .flat_map(|s| s.chars())
6444 .skip(1)
6445 .chain(['\n'])
6446 .collect::<String>();
6447
6448 edits.push((
6449 buffer.anchor_after(range_to_move.start)
6450 ..buffer.anchor_before(range_to_move.end),
6451 String::new(),
6452 ));
6453 let insertion_anchor = buffer.anchor_after(insertion_point);
6454 edits.push((insertion_anchor..insertion_anchor, text));
6455
6456 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6457
6458 // Move selections up
6459 new_selections.extend(contiguous_row_selections.drain(..).map(
6460 |mut selection| {
6461 selection.start.row -= row_delta;
6462 selection.end.row -= row_delta;
6463 selection
6464 },
6465 ));
6466
6467 // Move folds up
6468 unfold_ranges.push(range_to_move.clone());
6469 for fold in display_map.folds_in_range(
6470 buffer.anchor_before(range_to_move.start)
6471 ..buffer.anchor_after(range_to_move.end),
6472 ) {
6473 let mut start = fold.range.start.to_point(&buffer);
6474 let mut end = fold.range.end.to_point(&buffer);
6475 start.row -= row_delta;
6476 end.row -= row_delta;
6477 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6478 }
6479 }
6480 }
6481
6482 // If we didn't move line(s), preserve the existing selections
6483 new_selections.append(&mut contiguous_row_selections);
6484 }
6485
6486 self.transact(cx, |this, cx| {
6487 this.unfold_ranges(&unfold_ranges, true, true, cx);
6488 this.buffer.update(cx, |buffer, cx| {
6489 for (range, text) in edits {
6490 buffer.edit([(range, text)], None, cx);
6491 }
6492 });
6493 this.fold_creases(refold_creases, true, cx);
6494 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6495 s.select(new_selections);
6496 })
6497 });
6498 }
6499
6500 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6501 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6502 let buffer = self.buffer.read(cx).snapshot(cx);
6503
6504 let mut edits = Vec::new();
6505 let mut unfold_ranges = Vec::new();
6506 let mut refold_creases = Vec::new();
6507
6508 let selections = self.selections.all::<Point>(cx);
6509 let mut selections = selections.iter().peekable();
6510 let mut contiguous_row_selections = Vec::new();
6511 let mut new_selections = Vec::new();
6512
6513 while let Some(selection) = selections.next() {
6514 // Find all the selections that span a contiguous row range
6515 let (start_row, end_row) = consume_contiguous_rows(
6516 &mut contiguous_row_selections,
6517 selection,
6518 &display_map,
6519 &mut selections,
6520 );
6521
6522 // Move the text spanned by the row range to be after the last line of the row range
6523 if end_row.0 <= buffer.max_point().row {
6524 let range_to_move =
6525 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6526 let insertion_point = display_map
6527 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6528 .0;
6529
6530 // Don't move lines across excerpt boundaries
6531 if buffer
6532 .excerpt_boundaries_in_range((
6533 Bound::Excluded(range_to_move.start),
6534 Bound::Included(insertion_point),
6535 ))
6536 .next()
6537 .is_none()
6538 {
6539 let mut text = String::from("\n");
6540 text.extend(buffer.text_for_range(range_to_move.clone()));
6541 text.pop(); // Drop trailing newline
6542 edits.push((
6543 buffer.anchor_after(range_to_move.start)
6544 ..buffer.anchor_before(range_to_move.end),
6545 String::new(),
6546 ));
6547 let insertion_anchor = buffer.anchor_after(insertion_point);
6548 edits.push((insertion_anchor..insertion_anchor, text));
6549
6550 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6551
6552 // Move selections down
6553 new_selections.extend(contiguous_row_selections.drain(..).map(
6554 |mut selection| {
6555 selection.start.row += row_delta;
6556 selection.end.row += row_delta;
6557 selection
6558 },
6559 ));
6560
6561 // Move folds down
6562 unfold_ranges.push(range_to_move.clone());
6563 for fold in display_map.folds_in_range(
6564 buffer.anchor_before(range_to_move.start)
6565 ..buffer.anchor_after(range_to_move.end),
6566 ) {
6567 let mut start = fold.range.start.to_point(&buffer);
6568 let mut end = fold.range.end.to_point(&buffer);
6569 start.row += row_delta;
6570 end.row += row_delta;
6571 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6572 }
6573 }
6574 }
6575
6576 // If we didn't move line(s), preserve the existing selections
6577 new_selections.append(&mut contiguous_row_selections);
6578 }
6579
6580 self.transact(cx, |this, cx| {
6581 this.unfold_ranges(&unfold_ranges, true, true, cx);
6582 this.buffer.update(cx, |buffer, cx| {
6583 for (range, text) in edits {
6584 buffer.edit([(range, text)], None, cx);
6585 }
6586 });
6587 this.fold_creases(refold_creases, true, cx);
6588 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6589 });
6590 }
6591
6592 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6593 let text_layout_details = &self.text_layout_details(cx);
6594 self.transact(cx, |this, cx| {
6595 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6596 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6597 let line_mode = s.line_mode;
6598 s.move_with(|display_map, selection| {
6599 if !selection.is_empty() || line_mode {
6600 return;
6601 }
6602
6603 let mut head = selection.head();
6604 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6605 if head.column() == display_map.line_len(head.row()) {
6606 transpose_offset = display_map
6607 .buffer_snapshot
6608 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6609 }
6610
6611 if transpose_offset == 0 {
6612 return;
6613 }
6614
6615 *head.column_mut() += 1;
6616 head = display_map.clip_point(head, Bias::Right);
6617 let goal = SelectionGoal::HorizontalPosition(
6618 display_map
6619 .x_for_display_point(head, text_layout_details)
6620 .into(),
6621 );
6622 selection.collapse_to(head, goal);
6623
6624 let transpose_start = display_map
6625 .buffer_snapshot
6626 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6627 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6628 let transpose_end = display_map
6629 .buffer_snapshot
6630 .clip_offset(transpose_offset + 1, Bias::Right);
6631 if let Some(ch) =
6632 display_map.buffer_snapshot.chars_at(transpose_start).next()
6633 {
6634 edits.push((transpose_start..transpose_offset, String::new()));
6635 edits.push((transpose_end..transpose_end, ch.to_string()));
6636 }
6637 }
6638 });
6639 edits
6640 });
6641 this.buffer
6642 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6643 let selections = this.selections.all::<usize>(cx);
6644 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6645 s.select(selections);
6646 });
6647 });
6648 }
6649
6650 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6651 self.rewrap_impl(IsVimMode::No, cx)
6652 }
6653
6654 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
6655 let buffer = self.buffer.read(cx).snapshot(cx);
6656 let selections = self.selections.all::<Point>(cx);
6657 let mut selections = selections.iter().peekable();
6658
6659 let mut edits = Vec::new();
6660 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6661
6662 while let Some(selection) = selections.next() {
6663 let mut start_row = selection.start.row;
6664 let mut end_row = selection.end.row;
6665
6666 // Skip selections that overlap with a range that has already been rewrapped.
6667 let selection_range = start_row..end_row;
6668 if rewrapped_row_ranges
6669 .iter()
6670 .any(|range| range.overlaps(&selection_range))
6671 {
6672 continue;
6673 }
6674
6675 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
6676
6677 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6678 match language_scope.language_name().0.as_ref() {
6679 "Markdown" | "Plain Text" => {
6680 should_rewrap = true;
6681 }
6682 _ => {}
6683 }
6684 }
6685
6686 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
6687
6688 // Since not all lines in the selection may be at the same indent
6689 // level, choose the indent size that is the most common between all
6690 // of the lines.
6691 //
6692 // If there is a tie, we use the deepest indent.
6693 let (indent_size, indent_end) = {
6694 let mut indent_size_occurrences = HashMap::default();
6695 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6696
6697 for row in start_row..=end_row {
6698 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6699 rows_by_indent_size.entry(indent).or_default().push(row);
6700 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6701 }
6702
6703 let indent_size = indent_size_occurrences
6704 .into_iter()
6705 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
6706 .map(|(indent, _)| indent)
6707 .unwrap_or_default();
6708 let row = rows_by_indent_size[&indent_size][0];
6709 let indent_end = Point::new(row, indent_size.len);
6710
6711 (indent_size, indent_end)
6712 };
6713
6714 let mut line_prefix = indent_size.chars().collect::<String>();
6715
6716 if let Some(comment_prefix) =
6717 buffer
6718 .language_scope_at(selection.head())
6719 .and_then(|language| {
6720 language
6721 .line_comment_prefixes()
6722 .iter()
6723 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6724 .cloned()
6725 })
6726 {
6727 line_prefix.push_str(&comment_prefix);
6728 should_rewrap = true;
6729 }
6730
6731 if !should_rewrap {
6732 continue;
6733 }
6734
6735 if selection.is_empty() {
6736 'expand_upwards: while start_row > 0 {
6737 let prev_row = start_row - 1;
6738 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6739 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6740 {
6741 start_row = prev_row;
6742 } else {
6743 break 'expand_upwards;
6744 }
6745 }
6746
6747 'expand_downwards: while end_row < buffer.max_point().row {
6748 let next_row = end_row + 1;
6749 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6750 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6751 {
6752 end_row = next_row;
6753 } else {
6754 break 'expand_downwards;
6755 }
6756 }
6757 }
6758
6759 let start = Point::new(start_row, 0);
6760 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6761 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6762 let Some(lines_without_prefixes) = selection_text
6763 .lines()
6764 .map(|line| {
6765 line.strip_prefix(&line_prefix)
6766 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6767 .ok_or_else(|| {
6768 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6769 })
6770 })
6771 .collect::<Result<Vec<_>, _>>()
6772 .log_err()
6773 else {
6774 continue;
6775 };
6776
6777 let wrap_column = buffer
6778 .settings_at(Point::new(start_row, 0), cx)
6779 .preferred_line_length as usize;
6780 let wrapped_text = wrap_with_prefix(
6781 line_prefix,
6782 lines_without_prefixes.join(" "),
6783 wrap_column,
6784 tab_size,
6785 );
6786
6787 // TODO: should always use char-based diff while still supporting cursor behavior that
6788 // matches vim.
6789 let diff = match is_vim_mode {
6790 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
6791 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
6792 };
6793 let mut offset = start.to_offset(&buffer);
6794 let mut moved_since_edit = true;
6795
6796 for change in diff.iter_all_changes() {
6797 let value = change.value();
6798 match change.tag() {
6799 ChangeTag::Equal => {
6800 offset += value.len();
6801 moved_since_edit = true;
6802 }
6803 ChangeTag::Delete => {
6804 let start = buffer.anchor_after(offset);
6805 let end = buffer.anchor_before(offset + value.len());
6806
6807 if moved_since_edit {
6808 edits.push((start..end, String::new()));
6809 } else {
6810 edits.last_mut().unwrap().0.end = end;
6811 }
6812
6813 offset += value.len();
6814 moved_since_edit = false;
6815 }
6816 ChangeTag::Insert => {
6817 if moved_since_edit {
6818 let anchor = buffer.anchor_after(offset);
6819 edits.push((anchor..anchor, value.to_string()));
6820 } else {
6821 edits.last_mut().unwrap().1.push_str(value);
6822 }
6823
6824 moved_since_edit = false;
6825 }
6826 }
6827 }
6828
6829 rewrapped_row_ranges.push(start_row..=end_row);
6830 }
6831
6832 self.buffer
6833 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6834 }
6835
6836 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
6837 let mut text = String::new();
6838 let buffer = self.buffer.read(cx).snapshot(cx);
6839 let mut selections = self.selections.all::<Point>(cx);
6840 let mut clipboard_selections = Vec::with_capacity(selections.len());
6841 {
6842 let max_point = buffer.max_point();
6843 let mut is_first = true;
6844 for selection in &mut selections {
6845 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6846 if is_entire_line {
6847 selection.start = Point::new(selection.start.row, 0);
6848 if !selection.is_empty() && selection.end.column == 0 {
6849 selection.end = cmp::min(max_point, selection.end);
6850 } else {
6851 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6852 }
6853 selection.goal = SelectionGoal::None;
6854 }
6855 if is_first {
6856 is_first = false;
6857 } else {
6858 text += "\n";
6859 }
6860 let mut len = 0;
6861 for chunk in buffer.text_for_range(selection.start..selection.end) {
6862 text.push_str(chunk);
6863 len += chunk.len();
6864 }
6865 clipboard_selections.push(ClipboardSelection {
6866 len,
6867 is_entire_line,
6868 first_line_indent: buffer
6869 .indent_size_for_line(MultiBufferRow(selection.start.row))
6870 .len,
6871 });
6872 }
6873 }
6874
6875 self.transact(cx, |this, cx| {
6876 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6877 s.select(selections);
6878 });
6879 this.insert("", cx);
6880 });
6881 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
6882 }
6883
6884 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6885 let item = self.cut_common(cx);
6886 cx.write_to_clipboard(item);
6887 }
6888
6889 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
6890 self.change_selections(None, cx, |s| {
6891 s.move_with(|snapshot, sel| {
6892 if sel.is_empty() {
6893 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
6894 }
6895 });
6896 });
6897 let item = self.cut_common(cx);
6898 cx.set_global(KillRing(item))
6899 }
6900
6901 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
6902 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
6903 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
6904 (kill_ring.text().to_string(), kill_ring.metadata_json())
6905 } else {
6906 return;
6907 }
6908 } else {
6909 return;
6910 };
6911 self.do_paste(&text, metadata, false, cx);
6912 }
6913
6914 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6915 let selections = self.selections.all::<Point>(cx);
6916 let buffer = self.buffer.read(cx).read(cx);
6917 let mut text = String::new();
6918
6919 let mut clipboard_selections = Vec::with_capacity(selections.len());
6920 {
6921 let max_point = buffer.max_point();
6922 let mut is_first = true;
6923 for selection in selections.iter() {
6924 let mut start = selection.start;
6925 let mut end = selection.end;
6926 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6927 if is_entire_line {
6928 start = Point::new(start.row, 0);
6929 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6930 }
6931 if is_first {
6932 is_first = false;
6933 } else {
6934 text += "\n";
6935 }
6936 let mut len = 0;
6937 for chunk in buffer.text_for_range(start..end) {
6938 text.push_str(chunk);
6939 len += chunk.len();
6940 }
6941 clipboard_selections.push(ClipboardSelection {
6942 len,
6943 is_entire_line,
6944 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6945 });
6946 }
6947 }
6948
6949 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6950 text,
6951 clipboard_selections,
6952 ));
6953 }
6954
6955 pub fn do_paste(
6956 &mut self,
6957 text: &String,
6958 clipboard_selections: Option<Vec<ClipboardSelection>>,
6959 handle_entire_lines: bool,
6960 cx: &mut ViewContext<Self>,
6961 ) {
6962 if self.read_only(cx) {
6963 return;
6964 }
6965
6966 let clipboard_text = Cow::Borrowed(text);
6967
6968 self.transact(cx, |this, cx| {
6969 if let Some(mut clipboard_selections) = clipboard_selections {
6970 let old_selections = this.selections.all::<usize>(cx);
6971 let all_selections_were_entire_line =
6972 clipboard_selections.iter().all(|s| s.is_entire_line);
6973 let first_selection_indent_column =
6974 clipboard_selections.first().map(|s| s.first_line_indent);
6975 if clipboard_selections.len() != old_selections.len() {
6976 clipboard_selections.drain(..);
6977 }
6978 let cursor_offset = this.selections.last::<usize>(cx).head();
6979 let mut auto_indent_on_paste = true;
6980
6981 this.buffer.update(cx, |buffer, cx| {
6982 let snapshot = buffer.read(cx);
6983 auto_indent_on_paste =
6984 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
6985
6986 let mut start_offset = 0;
6987 let mut edits = Vec::new();
6988 let mut original_indent_columns = Vec::new();
6989 for (ix, selection) in old_selections.iter().enumerate() {
6990 let to_insert;
6991 let entire_line;
6992 let original_indent_column;
6993 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6994 let end_offset = start_offset + clipboard_selection.len;
6995 to_insert = &clipboard_text[start_offset..end_offset];
6996 entire_line = clipboard_selection.is_entire_line;
6997 start_offset = end_offset + 1;
6998 original_indent_column = Some(clipboard_selection.first_line_indent);
6999 } else {
7000 to_insert = clipboard_text.as_str();
7001 entire_line = all_selections_were_entire_line;
7002 original_indent_column = first_selection_indent_column
7003 }
7004
7005 // If the corresponding selection was empty when this slice of the
7006 // clipboard text was written, then the entire line containing the
7007 // selection was copied. If this selection is also currently empty,
7008 // then paste the line before the current line of the buffer.
7009 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7010 let column = selection.start.to_point(&snapshot).column as usize;
7011 let line_start = selection.start - column;
7012 line_start..line_start
7013 } else {
7014 selection.range()
7015 };
7016
7017 edits.push((range, to_insert));
7018 original_indent_columns.extend(original_indent_column);
7019 }
7020 drop(snapshot);
7021
7022 buffer.edit(
7023 edits,
7024 if auto_indent_on_paste {
7025 Some(AutoindentMode::Block {
7026 original_indent_columns,
7027 })
7028 } else {
7029 None
7030 },
7031 cx,
7032 );
7033 });
7034
7035 let selections = this.selections.all::<usize>(cx);
7036 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7037 } else {
7038 this.insert(&clipboard_text, cx);
7039 }
7040 });
7041 }
7042
7043 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7044 if let Some(item) = cx.read_from_clipboard() {
7045 let entries = item.entries();
7046
7047 match entries.first() {
7048 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7049 // of all the pasted entries.
7050 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7051 .do_paste(
7052 clipboard_string.text(),
7053 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7054 true,
7055 cx,
7056 ),
7057 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7058 }
7059 }
7060 }
7061
7062 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7063 if self.read_only(cx) {
7064 return;
7065 }
7066
7067 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7068 if let Some((selections, _)) =
7069 self.selection_history.transaction(transaction_id).cloned()
7070 {
7071 self.change_selections(None, cx, |s| {
7072 s.select_anchors(selections.to_vec());
7073 });
7074 }
7075 self.request_autoscroll(Autoscroll::fit(), cx);
7076 self.unmark_text(cx);
7077 self.refresh_inline_completion(true, false, cx);
7078 cx.emit(EditorEvent::Edited { transaction_id });
7079 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7080 }
7081 }
7082
7083 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7084 if self.read_only(cx) {
7085 return;
7086 }
7087
7088 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7089 if let Some((_, Some(selections))) =
7090 self.selection_history.transaction(transaction_id).cloned()
7091 {
7092 self.change_selections(None, cx, |s| {
7093 s.select_anchors(selections.to_vec());
7094 });
7095 }
7096 self.request_autoscroll(Autoscroll::fit(), cx);
7097 self.unmark_text(cx);
7098 self.refresh_inline_completion(true, false, cx);
7099 cx.emit(EditorEvent::Edited { transaction_id });
7100 }
7101 }
7102
7103 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7104 self.buffer
7105 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7106 }
7107
7108 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7109 self.buffer
7110 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7111 }
7112
7113 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7114 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7115 let line_mode = s.line_mode;
7116 s.move_with(|map, selection| {
7117 let cursor = if selection.is_empty() && !line_mode {
7118 movement::left(map, selection.start)
7119 } else {
7120 selection.start
7121 };
7122 selection.collapse_to(cursor, SelectionGoal::None);
7123 });
7124 })
7125 }
7126
7127 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7128 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7129 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7130 })
7131 }
7132
7133 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7134 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7135 let line_mode = s.line_mode;
7136 s.move_with(|map, selection| {
7137 let cursor = if selection.is_empty() && !line_mode {
7138 movement::right(map, selection.end)
7139 } else {
7140 selection.end
7141 };
7142 selection.collapse_to(cursor, SelectionGoal::None)
7143 });
7144 })
7145 }
7146
7147 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7148 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7149 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7150 })
7151 }
7152
7153 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7154 if self.take_rename(true, cx).is_some() {
7155 return;
7156 }
7157
7158 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7159 cx.propagate();
7160 return;
7161 }
7162
7163 let text_layout_details = &self.text_layout_details(cx);
7164 let selection_count = self.selections.count();
7165 let first_selection = self.selections.first_anchor();
7166
7167 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7168 let line_mode = s.line_mode;
7169 s.move_with(|map, selection| {
7170 if !selection.is_empty() && !line_mode {
7171 selection.goal = SelectionGoal::None;
7172 }
7173 let (cursor, goal) = movement::up(
7174 map,
7175 selection.start,
7176 selection.goal,
7177 false,
7178 text_layout_details,
7179 );
7180 selection.collapse_to(cursor, goal);
7181 });
7182 });
7183
7184 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7185 {
7186 cx.propagate();
7187 }
7188 }
7189
7190 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, 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::up_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 move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7222 if self.take_rename(true, cx).is_some() {
7223 return;
7224 }
7225
7226 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7227 cx.propagate();
7228 return;
7229 }
7230
7231 let text_layout_details = &self.text_layout_details(cx);
7232
7233 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7234 let line_mode = s.line_mode;
7235 s.move_with(|map, selection| {
7236 if !selection.is_empty() && !line_mode {
7237 selection.goal = SelectionGoal::None;
7238 }
7239 let (cursor, goal) = movement::down_by_rows(
7240 map,
7241 selection.start,
7242 action.lines,
7243 selection.goal,
7244 false,
7245 text_layout_details,
7246 );
7247 selection.collapse_to(cursor, goal);
7248 });
7249 })
7250 }
7251
7252 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7253 let text_layout_details = &self.text_layout_details(cx);
7254 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7255 s.move_heads_with(|map, head, goal| {
7256 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7257 })
7258 })
7259 }
7260
7261 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7262 let text_layout_details = &self.text_layout_details(cx);
7263 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7264 s.move_heads_with(|map, head, goal| {
7265 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7266 })
7267 })
7268 }
7269
7270 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7271 let Some(row_count) = self.visible_row_count() else {
7272 return;
7273 };
7274
7275 let text_layout_details = &self.text_layout_details(cx);
7276
7277 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7278 s.move_heads_with(|map, head, goal| {
7279 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7280 })
7281 })
7282 }
7283
7284 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7285 if self.take_rename(true, cx).is_some() {
7286 return;
7287 }
7288
7289 if self
7290 .context_menu
7291 .borrow_mut()
7292 .as_mut()
7293 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7294 .unwrap_or(false)
7295 {
7296 return;
7297 }
7298
7299 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7300 cx.propagate();
7301 return;
7302 }
7303
7304 let Some(row_count) = self.visible_row_count() else {
7305 return;
7306 };
7307
7308 let autoscroll = if action.center_cursor {
7309 Autoscroll::center()
7310 } else {
7311 Autoscroll::fit()
7312 };
7313
7314 let text_layout_details = &self.text_layout_details(cx);
7315
7316 self.change_selections(Some(autoscroll), cx, |s| {
7317 let line_mode = s.line_mode;
7318 s.move_with(|map, selection| {
7319 if !selection.is_empty() && !line_mode {
7320 selection.goal = SelectionGoal::None;
7321 }
7322 let (cursor, goal) = movement::up_by_rows(
7323 map,
7324 selection.end,
7325 row_count,
7326 selection.goal,
7327 false,
7328 text_layout_details,
7329 );
7330 selection.collapse_to(cursor, goal);
7331 });
7332 });
7333 }
7334
7335 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7336 let text_layout_details = &self.text_layout_details(cx);
7337 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7338 s.move_heads_with(|map, head, goal| {
7339 movement::up(map, head, goal, false, text_layout_details)
7340 })
7341 })
7342 }
7343
7344 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7345 self.take_rename(true, cx);
7346
7347 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7348 cx.propagate();
7349 return;
7350 }
7351
7352 let text_layout_details = &self.text_layout_details(cx);
7353 let selection_count = self.selections.count();
7354 let first_selection = self.selections.first_anchor();
7355
7356 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7357 let line_mode = s.line_mode;
7358 s.move_with(|map, selection| {
7359 if !selection.is_empty() && !line_mode {
7360 selection.goal = SelectionGoal::None;
7361 }
7362 let (cursor, goal) = movement::down(
7363 map,
7364 selection.end,
7365 selection.goal,
7366 false,
7367 text_layout_details,
7368 );
7369 selection.collapse_to(cursor, goal);
7370 });
7371 });
7372
7373 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7374 {
7375 cx.propagate();
7376 }
7377 }
7378
7379 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7380 let Some(row_count) = self.visible_row_count() else {
7381 return;
7382 };
7383
7384 let text_layout_details = &self.text_layout_details(cx);
7385
7386 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7387 s.move_heads_with(|map, head, goal| {
7388 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7389 })
7390 })
7391 }
7392
7393 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7394 if self.take_rename(true, cx).is_some() {
7395 return;
7396 }
7397
7398 if self
7399 .context_menu
7400 .borrow_mut()
7401 .as_mut()
7402 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7403 .unwrap_or(false)
7404 {
7405 return;
7406 }
7407
7408 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7409 cx.propagate();
7410 return;
7411 }
7412
7413 let Some(row_count) = self.visible_row_count() else {
7414 return;
7415 };
7416
7417 let autoscroll = if action.center_cursor {
7418 Autoscroll::center()
7419 } else {
7420 Autoscroll::fit()
7421 };
7422
7423 let text_layout_details = &self.text_layout_details(cx);
7424 self.change_selections(Some(autoscroll), cx, |s| {
7425 let line_mode = s.line_mode;
7426 s.move_with(|map, selection| {
7427 if !selection.is_empty() && !line_mode {
7428 selection.goal = SelectionGoal::None;
7429 }
7430 let (cursor, goal) = movement::down_by_rows(
7431 map,
7432 selection.end,
7433 row_count,
7434 selection.goal,
7435 false,
7436 text_layout_details,
7437 );
7438 selection.collapse_to(cursor, goal);
7439 });
7440 });
7441 }
7442
7443 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7444 let text_layout_details = &self.text_layout_details(cx);
7445 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7446 s.move_heads_with(|map, head, goal| {
7447 movement::down(map, head, goal, false, text_layout_details)
7448 })
7449 });
7450 }
7451
7452 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7453 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7454 context_menu.select_first(self.completion_provider.as_deref(), cx);
7455 }
7456 }
7457
7458 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7459 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7460 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7461 }
7462 }
7463
7464 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7465 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7466 context_menu.select_next(self.completion_provider.as_deref(), cx);
7467 }
7468 }
7469
7470 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7471 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7472 context_menu.select_last(self.completion_provider.as_deref(), cx);
7473 }
7474 }
7475
7476 pub fn move_to_previous_word_start(
7477 &mut self,
7478 _: &MoveToPreviousWordStart,
7479 cx: &mut ViewContext<Self>,
7480 ) {
7481 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7482 s.move_cursors_with(|map, head, _| {
7483 (
7484 movement::previous_word_start(map, head),
7485 SelectionGoal::None,
7486 )
7487 });
7488 })
7489 }
7490
7491 pub fn move_to_previous_subword_start(
7492 &mut self,
7493 _: &MoveToPreviousSubwordStart,
7494 cx: &mut ViewContext<Self>,
7495 ) {
7496 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7497 s.move_cursors_with(|map, head, _| {
7498 (
7499 movement::previous_subword_start(map, head),
7500 SelectionGoal::None,
7501 )
7502 });
7503 })
7504 }
7505
7506 pub fn select_to_previous_word_start(
7507 &mut self,
7508 _: &SelectToPreviousWordStart,
7509 cx: &mut ViewContext<Self>,
7510 ) {
7511 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7512 s.move_heads_with(|map, head, _| {
7513 (
7514 movement::previous_word_start(map, head),
7515 SelectionGoal::None,
7516 )
7517 });
7518 })
7519 }
7520
7521 pub fn select_to_previous_subword_start(
7522 &mut self,
7523 _: &SelectToPreviousSubwordStart,
7524 cx: &mut ViewContext<Self>,
7525 ) {
7526 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7527 s.move_heads_with(|map, head, _| {
7528 (
7529 movement::previous_subword_start(map, head),
7530 SelectionGoal::None,
7531 )
7532 });
7533 })
7534 }
7535
7536 pub fn delete_to_previous_word_start(
7537 &mut self,
7538 action: &DeleteToPreviousWordStart,
7539 cx: &mut ViewContext<Self>,
7540 ) {
7541 self.transact(cx, |this, cx| {
7542 this.select_autoclose_pair(cx);
7543 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7544 let line_mode = s.line_mode;
7545 s.move_with(|map, selection| {
7546 if selection.is_empty() && !line_mode {
7547 let cursor = if action.ignore_newlines {
7548 movement::previous_word_start(map, selection.head())
7549 } else {
7550 movement::previous_word_start_or_newline(map, selection.head())
7551 };
7552 selection.set_head(cursor, SelectionGoal::None);
7553 }
7554 });
7555 });
7556 this.insert("", cx);
7557 });
7558 }
7559
7560 pub fn delete_to_previous_subword_start(
7561 &mut self,
7562 _: &DeleteToPreviousSubwordStart,
7563 cx: &mut ViewContext<Self>,
7564 ) {
7565 self.transact(cx, |this, cx| {
7566 this.select_autoclose_pair(cx);
7567 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7568 let line_mode = s.line_mode;
7569 s.move_with(|map, selection| {
7570 if selection.is_empty() && !line_mode {
7571 let cursor = movement::previous_subword_start(map, selection.head());
7572 selection.set_head(cursor, SelectionGoal::None);
7573 }
7574 });
7575 });
7576 this.insert("", cx);
7577 });
7578 }
7579
7580 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7581 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7582 s.move_cursors_with(|map, head, _| {
7583 (movement::next_word_end(map, head), SelectionGoal::None)
7584 });
7585 })
7586 }
7587
7588 pub fn move_to_next_subword_end(
7589 &mut self,
7590 _: &MoveToNextSubwordEnd,
7591 cx: &mut ViewContext<Self>,
7592 ) {
7593 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7594 s.move_cursors_with(|map, head, _| {
7595 (movement::next_subword_end(map, head), SelectionGoal::None)
7596 });
7597 })
7598 }
7599
7600 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7601 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7602 s.move_heads_with(|map, head, _| {
7603 (movement::next_word_end(map, head), SelectionGoal::None)
7604 });
7605 })
7606 }
7607
7608 pub fn select_to_next_subword_end(
7609 &mut self,
7610 _: &SelectToNextSubwordEnd,
7611 cx: &mut ViewContext<Self>,
7612 ) {
7613 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7614 s.move_heads_with(|map, head, _| {
7615 (movement::next_subword_end(map, head), SelectionGoal::None)
7616 });
7617 })
7618 }
7619
7620 pub fn delete_to_next_word_end(
7621 &mut self,
7622 action: &DeleteToNextWordEnd,
7623 cx: &mut ViewContext<Self>,
7624 ) {
7625 self.transact(cx, |this, cx| {
7626 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7627 let line_mode = s.line_mode;
7628 s.move_with(|map, selection| {
7629 if selection.is_empty() && !line_mode {
7630 let cursor = if action.ignore_newlines {
7631 movement::next_word_end(map, selection.head())
7632 } else {
7633 movement::next_word_end_or_newline(map, selection.head())
7634 };
7635 selection.set_head(cursor, SelectionGoal::None);
7636 }
7637 });
7638 });
7639 this.insert("", cx);
7640 });
7641 }
7642
7643 pub fn delete_to_next_subword_end(
7644 &mut self,
7645 _: &DeleteToNextSubwordEnd,
7646 cx: &mut ViewContext<Self>,
7647 ) {
7648 self.transact(cx, |this, cx| {
7649 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7650 s.move_with(|map, selection| {
7651 if selection.is_empty() {
7652 let cursor = movement::next_subword_end(map, selection.head());
7653 selection.set_head(cursor, SelectionGoal::None);
7654 }
7655 });
7656 });
7657 this.insert("", cx);
7658 });
7659 }
7660
7661 pub fn move_to_beginning_of_line(
7662 &mut self,
7663 action: &MoveToBeginningOfLine,
7664 cx: &mut ViewContext<Self>,
7665 ) {
7666 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7667 s.move_cursors_with(|map, head, _| {
7668 (
7669 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7670 SelectionGoal::None,
7671 )
7672 });
7673 })
7674 }
7675
7676 pub fn select_to_beginning_of_line(
7677 &mut self,
7678 action: &SelectToBeginningOfLine,
7679 cx: &mut ViewContext<Self>,
7680 ) {
7681 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7682 s.move_heads_with(|map, head, _| {
7683 (
7684 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7685 SelectionGoal::None,
7686 )
7687 });
7688 });
7689 }
7690
7691 pub fn delete_to_beginning_of_line(
7692 &mut self,
7693 _: &DeleteToBeginningOfLine,
7694 cx: &mut ViewContext<Self>,
7695 ) {
7696 self.transact(cx, |this, cx| {
7697 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7698 s.move_with(|_, selection| {
7699 selection.reversed = true;
7700 });
7701 });
7702
7703 this.select_to_beginning_of_line(
7704 &SelectToBeginningOfLine {
7705 stop_at_soft_wraps: false,
7706 },
7707 cx,
7708 );
7709 this.backspace(&Backspace, cx);
7710 });
7711 }
7712
7713 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7714 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7715 s.move_cursors_with(|map, head, _| {
7716 (
7717 movement::line_end(map, head, action.stop_at_soft_wraps),
7718 SelectionGoal::None,
7719 )
7720 });
7721 })
7722 }
7723
7724 pub fn select_to_end_of_line(
7725 &mut self,
7726 action: &SelectToEndOfLine,
7727 cx: &mut ViewContext<Self>,
7728 ) {
7729 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7730 s.move_heads_with(|map, head, _| {
7731 (
7732 movement::line_end(map, head, action.stop_at_soft_wraps),
7733 SelectionGoal::None,
7734 )
7735 });
7736 })
7737 }
7738
7739 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7740 self.transact(cx, |this, cx| {
7741 this.select_to_end_of_line(
7742 &SelectToEndOfLine {
7743 stop_at_soft_wraps: false,
7744 },
7745 cx,
7746 );
7747 this.delete(&Delete, cx);
7748 });
7749 }
7750
7751 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7752 self.transact(cx, |this, cx| {
7753 this.select_to_end_of_line(
7754 &SelectToEndOfLine {
7755 stop_at_soft_wraps: false,
7756 },
7757 cx,
7758 );
7759 this.cut(&Cut, cx);
7760 });
7761 }
7762
7763 pub fn move_to_start_of_paragraph(
7764 &mut self,
7765 _: &MoveToStartOfParagraph,
7766 cx: &mut ViewContext<Self>,
7767 ) {
7768 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7769 cx.propagate();
7770 return;
7771 }
7772
7773 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7774 s.move_with(|map, selection| {
7775 selection.collapse_to(
7776 movement::start_of_paragraph(map, selection.head(), 1),
7777 SelectionGoal::None,
7778 )
7779 });
7780 })
7781 }
7782
7783 pub fn move_to_end_of_paragraph(
7784 &mut self,
7785 _: &MoveToEndOfParagraph,
7786 cx: &mut ViewContext<Self>,
7787 ) {
7788 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7789 cx.propagate();
7790 return;
7791 }
7792
7793 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7794 s.move_with(|map, selection| {
7795 selection.collapse_to(
7796 movement::end_of_paragraph(map, selection.head(), 1),
7797 SelectionGoal::None,
7798 )
7799 });
7800 })
7801 }
7802
7803 pub fn select_to_start_of_paragraph(
7804 &mut self,
7805 _: &SelectToStartOfParagraph,
7806 cx: &mut ViewContext<Self>,
7807 ) {
7808 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7809 cx.propagate();
7810 return;
7811 }
7812
7813 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7814 s.move_heads_with(|map, head, _| {
7815 (
7816 movement::start_of_paragraph(map, head, 1),
7817 SelectionGoal::None,
7818 )
7819 });
7820 })
7821 }
7822
7823 pub fn select_to_end_of_paragraph(
7824 &mut self,
7825 _: &SelectToEndOfParagraph,
7826 cx: &mut ViewContext<Self>,
7827 ) {
7828 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7829 cx.propagate();
7830 return;
7831 }
7832
7833 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7834 s.move_heads_with(|map, head, _| {
7835 (
7836 movement::end_of_paragraph(map, head, 1),
7837 SelectionGoal::None,
7838 )
7839 });
7840 })
7841 }
7842
7843 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7844 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7845 cx.propagate();
7846 return;
7847 }
7848
7849 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7850 s.select_ranges(vec![0..0]);
7851 });
7852 }
7853
7854 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7855 let mut selection = self.selections.last::<Point>(cx);
7856 selection.set_head(Point::zero(), SelectionGoal::None);
7857
7858 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7859 s.select(vec![selection]);
7860 });
7861 }
7862
7863 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7864 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7865 cx.propagate();
7866 return;
7867 }
7868
7869 let cursor = self.buffer.read(cx).read(cx).len();
7870 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7871 s.select_ranges(vec![cursor..cursor])
7872 });
7873 }
7874
7875 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7876 self.nav_history = nav_history;
7877 }
7878
7879 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7880 self.nav_history.as_ref()
7881 }
7882
7883 fn push_to_nav_history(
7884 &mut self,
7885 cursor_anchor: Anchor,
7886 new_position: Option<Point>,
7887 cx: &mut ViewContext<Self>,
7888 ) {
7889 if let Some(nav_history) = self.nav_history.as_mut() {
7890 let buffer = self.buffer.read(cx).read(cx);
7891 let cursor_position = cursor_anchor.to_point(&buffer);
7892 let scroll_state = self.scroll_manager.anchor();
7893 let scroll_top_row = scroll_state.top_row(&buffer);
7894 drop(buffer);
7895
7896 if let Some(new_position) = new_position {
7897 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7898 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7899 return;
7900 }
7901 }
7902
7903 nav_history.push(
7904 Some(NavigationData {
7905 cursor_anchor,
7906 cursor_position,
7907 scroll_anchor: scroll_state,
7908 scroll_top_row,
7909 }),
7910 cx,
7911 );
7912 }
7913 }
7914
7915 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7916 let buffer = self.buffer.read(cx).snapshot(cx);
7917 let mut selection = self.selections.first::<usize>(cx);
7918 selection.set_head(buffer.len(), SelectionGoal::None);
7919 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7920 s.select(vec![selection]);
7921 });
7922 }
7923
7924 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7925 let end = self.buffer.read(cx).read(cx).len();
7926 self.change_selections(None, cx, |s| {
7927 s.select_ranges(vec![0..end]);
7928 });
7929 }
7930
7931 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7932 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7933 let mut selections = self.selections.all::<Point>(cx);
7934 let max_point = display_map.buffer_snapshot.max_point();
7935 for selection in &mut selections {
7936 let rows = selection.spanned_rows(true, &display_map);
7937 selection.start = Point::new(rows.start.0, 0);
7938 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7939 selection.reversed = false;
7940 }
7941 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7942 s.select(selections);
7943 });
7944 }
7945
7946 pub fn split_selection_into_lines(
7947 &mut self,
7948 _: &SplitSelectionIntoLines,
7949 cx: &mut ViewContext<Self>,
7950 ) {
7951 let mut to_unfold = Vec::new();
7952 let mut new_selection_ranges = Vec::new();
7953 {
7954 let selections = self.selections.all::<Point>(cx);
7955 let buffer = self.buffer.read(cx).read(cx);
7956 for selection in selections {
7957 for row in selection.start.row..selection.end.row {
7958 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7959 new_selection_ranges.push(cursor..cursor);
7960 }
7961 new_selection_ranges.push(selection.end..selection.end);
7962 to_unfold.push(selection.start..selection.end);
7963 }
7964 }
7965 self.unfold_ranges(&to_unfold, true, true, cx);
7966 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7967 s.select_ranges(new_selection_ranges);
7968 });
7969 }
7970
7971 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7972 self.add_selection(true, cx);
7973 }
7974
7975 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7976 self.add_selection(false, cx);
7977 }
7978
7979 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7980 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7981 let mut selections = self.selections.all::<Point>(cx);
7982 let text_layout_details = self.text_layout_details(cx);
7983 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7984 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7985 let range = oldest_selection.display_range(&display_map).sorted();
7986
7987 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7988 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7989 let positions = start_x.min(end_x)..start_x.max(end_x);
7990
7991 selections.clear();
7992 let mut stack = Vec::new();
7993 for row in range.start.row().0..=range.end.row().0 {
7994 if let Some(selection) = self.selections.build_columnar_selection(
7995 &display_map,
7996 DisplayRow(row),
7997 &positions,
7998 oldest_selection.reversed,
7999 &text_layout_details,
8000 ) {
8001 stack.push(selection.id);
8002 selections.push(selection);
8003 }
8004 }
8005
8006 if above {
8007 stack.reverse();
8008 }
8009
8010 AddSelectionsState { above, stack }
8011 });
8012
8013 let last_added_selection = *state.stack.last().unwrap();
8014 let mut new_selections = Vec::new();
8015 if above == state.above {
8016 let end_row = if above {
8017 DisplayRow(0)
8018 } else {
8019 display_map.max_point().row()
8020 };
8021
8022 'outer: for selection in selections {
8023 if selection.id == last_added_selection {
8024 let range = selection.display_range(&display_map).sorted();
8025 debug_assert_eq!(range.start.row(), range.end.row());
8026 let mut row = range.start.row();
8027 let positions =
8028 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8029 px(start)..px(end)
8030 } else {
8031 let start_x =
8032 display_map.x_for_display_point(range.start, &text_layout_details);
8033 let end_x =
8034 display_map.x_for_display_point(range.end, &text_layout_details);
8035 start_x.min(end_x)..start_x.max(end_x)
8036 };
8037
8038 while row != end_row {
8039 if above {
8040 row.0 -= 1;
8041 } else {
8042 row.0 += 1;
8043 }
8044
8045 if let Some(new_selection) = self.selections.build_columnar_selection(
8046 &display_map,
8047 row,
8048 &positions,
8049 selection.reversed,
8050 &text_layout_details,
8051 ) {
8052 state.stack.push(new_selection.id);
8053 if above {
8054 new_selections.push(new_selection);
8055 new_selections.push(selection);
8056 } else {
8057 new_selections.push(selection);
8058 new_selections.push(new_selection);
8059 }
8060
8061 continue 'outer;
8062 }
8063 }
8064 }
8065
8066 new_selections.push(selection);
8067 }
8068 } else {
8069 new_selections = selections;
8070 new_selections.retain(|s| s.id != last_added_selection);
8071 state.stack.pop();
8072 }
8073
8074 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8075 s.select(new_selections);
8076 });
8077 if state.stack.len() > 1 {
8078 self.add_selections_state = Some(state);
8079 }
8080 }
8081
8082 pub fn select_next_match_internal(
8083 &mut self,
8084 display_map: &DisplaySnapshot,
8085 replace_newest: bool,
8086 autoscroll: Option<Autoscroll>,
8087 cx: &mut ViewContext<Self>,
8088 ) -> Result<()> {
8089 fn select_next_match_ranges(
8090 this: &mut Editor,
8091 range: Range<usize>,
8092 replace_newest: bool,
8093 auto_scroll: Option<Autoscroll>,
8094 cx: &mut ViewContext<Editor>,
8095 ) {
8096 this.unfold_ranges(&[range.clone()], false, true, cx);
8097 this.change_selections(auto_scroll, cx, |s| {
8098 if replace_newest {
8099 s.delete(s.newest_anchor().id);
8100 }
8101 s.insert_range(range.clone());
8102 });
8103 }
8104
8105 let buffer = &display_map.buffer_snapshot;
8106 let mut selections = self.selections.all::<usize>(cx);
8107 if let Some(mut select_next_state) = self.select_next_state.take() {
8108 let query = &select_next_state.query;
8109 if !select_next_state.done {
8110 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8111 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8112 let mut next_selected_range = None;
8113
8114 let bytes_after_last_selection =
8115 buffer.bytes_in_range(last_selection.end..buffer.len());
8116 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8117 let query_matches = query
8118 .stream_find_iter(bytes_after_last_selection)
8119 .map(|result| (last_selection.end, result))
8120 .chain(
8121 query
8122 .stream_find_iter(bytes_before_first_selection)
8123 .map(|result| (0, result)),
8124 );
8125
8126 for (start_offset, query_match) in query_matches {
8127 let query_match = query_match.unwrap(); // can only fail due to I/O
8128 let offset_range =
8129 start_offset + query_match.start()..start_offset + query_match.end();
8130 let display_range = offset_range.start.to_display_point(display_map)
8131 ..offset_range.end.to_display_point(display_map);
8132
8133 if !select_next_state.wordwise
8134 || (!movement::is_inside_word(display_map, display_range.start)
8135 && !movement::is_inside_word(display_map, display_range.end))
8136 {
8137 // TODO: This is n^2, because we might check all the selections
8138 if !selections
8139 .iter()
8140 .any(|selection| selection.range().overlaps(&offset_range))
8141 {
8142 next_selected_range = Some(offset_range);
8143 break;
8144 }
8145 }
8146 }
8147
8148 if let Some(next_selected_range) = next_selected_range {
8149 select_next_match_ranges(
8150 self,
8151 next_selected_range,
8152 replace_newest,
8153 autoscroll,
8154 cx,
8155 );
8156 } else {
8157 select_next_state.done = true;
8158 }
8159 }
8160
8161 self.select_next_state = Some(select_next_state);
8162 } else {
8163 let mut only_carets = true;
8164 let mut same_text_selected = true;
8165 let mut selected_text = None;
8166
8167 let mut selections_iter = selections.iter().peekable();
8168 while let Some(selection) = selections_iter.next() {
8169 if selection.start != selection.end {
8170 only_carets = false;
8171 }
8172
8173 if same_text_selected {
8174 if selected_text.is_none() {
8175 selected_text =
8176 Some(buffer.text_for_range(selection.range()).collect::<String>());
8177 }
8178
8179 if let Some(next_selection) = selections_iter.peek() {
8180 if next_selection.range().len() == selection.range().len() {
8181 let next_selected_text = buffer
8182 .text_for_range(next_selection.range())
8183 .collect::<String>();
8184 if Some(next_selected_text) != selected_text {
8185 same_text_selected = false;
8186 selected_text = None;
8187 }
8188 } else {
8189 same_text_selected = false;
8190 selected_text = None;
8191 }
8192 }
8193 }
8194 }
8195
8196 if only_carets {
8197 for selection in &mut selections {
8198 let word_range = movement::surrounding_word(
8199 display_map,
8200 selection.start.to_display_point(display_map),
8201 );
8202 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8203 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8204 selection.goal = SelectionGoal::None;
8205 selection.reversed = false;
8206 select_next_match_ranges(
8207 self,
8208 selection.start..selection.end,
8209 replace_newest,
8210 autoscroll,
8211 cx,
8212 );
8213 }
8214
8215 if selections.len() == 1 {
8216 let selection = selections
8217 .last()
8218 .expect("ensured that there's only one selection");
8219 let query = buffer
8220 .text_for_range(selection.start..selection.end)
8221 .collect::<String>();
8222 let is_empty = query.is_empty();
8223 let select_state = SelectNextState {
8224 query: AhoCorasick::new(&[query])?,
8225 wordwise: true,
8226 done: is_empty,
8227 };
8228 self.select_next_state = Some(select_state);
8229 } else {
8230 self.select_next_state = None;
8231 }
8232 } else if let Some(selected_text) = selected_text {
8233 self.select_next_state = Some(SelectNextState {
8234 query: AhoCorasick::new(&[selected_text])?,
8235 wordwise: false,
8236 done: false,
8237 });
8238 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8239 }
8240 }
8241 Ok(())
8242 }
8243
8244 pub fn select_all_matches(
8245 &mut self,
8246 _action: &SelectAllMatches,
8247 cx: &mut ViewContext<Self>,
8248 ) -> Result<()> {
8249 self.push_to_selection_history();
8250 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8251
8252 self.select_next_match_internal(&display_map, false, None, cx)?;
8253 let Some(select_next_state) = self.select_next_state.as_mut() else {
8254 return Ok(());
8255 };
8256 if select_next_state.done {
8257 return Ok(());
8258 }
8259
8260 let mut new_selections = self.selections.all::<usize>(cx);
8261
8262 let buffer = &display_map.buffer_snapshot;
8263 let query_matches = select_next_state
8264 .query
8265 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8266
8267 for query_match in query_matches {
8268 let query_match = query_match.unwrap(); // can only fail due to I/O
8269 let offset_range = query_match.start()..query_match.end();
8270 let display_range = offset_range.start.to_display_point(&display_map)
8271 ..offset_range.end.to_display_point(&display_map);
8272
8273 if !select_next_state.wordwise
8274 || (!movement::is_inside_word(&display_map, display_range.start)
8275 && !movement::is_inside_word(&display_map, display_range.end))
8276 {
8277 self.selections.change_with(cx, |selections| {
8278 new_selections.push(Selection {
8279 id: selections.new_selection_id(),
8280 start: offset_range.start,
8281 end: offset_range.end,
8282 reversed: false,
8283 goal: SelectionGoal::None,
8284 });
8285 });
8286 }
8287 }
8288
8289 new_selections.sort_by_key(|selection| selection.start);
8290 let mut ix = 0;
8291 while ix + 1 < new_selections.len() {
8292 let current_selection = &new_selections[ix];
8293 let next_selection = &new_selections[ix + 1];
8294 if current_selection.range().overlaps(&next_selection.range()) {
8295 if current_selection.id < next_selection.id {
8296 new_selections.remove(ix + 1);
8297 } else {
8298 new_selections.remove(ix);
8299 }
8300 } else {
8301 ix += 1;
8302 }
8303 }
8304
8305 select_next_state.done = true;
8306 self.unfold_ranges(
8307 &new_selections
8308 .iter()
8309 .map(|selection| selection.range())
8310 .collect::<Vec<_>>(),
8311 false,
8312 false,
8313 cx,
8314 );
8315 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8316 selections.select(new_selections)
8317 });
8318
8319 Ok(())
8320 }
8321
8322 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8323 self.push_to_selection_history();
8324 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8325 self.select_next_match_internal(
8326 &display_map,
8327 action.replace_newest,
8328 Some(Autoscroll::newest()),
8329 cx,
8330 )?;
8331 Ok(())
8332 }
8333
8334 pub fn select_previous(
8335 &mut self,
8336 action: &SelectPrevious,
8337 cx: &mut ViewContext<Self>,
8338 ) -> Result<()> {
8339 self.push_to_selection_history();
8340 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8341 let buffer = &display_map.buffer_snapshot;
8342 let mut selections = self.selections.all::<usize>(cx);
8343 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8344 let query = &select_prev_state.query;
8345 if !select_prev_state.done {
8346 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8347 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8348 let mut next_selected_range = None;
8349 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8350 let bytes_before_last_selection =
8351 buffer.reversed_bytes_in_range(0..last_selection.start);
8352 let bytes_after_first_selection =
8353 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8354 let query_matches = query
8355 .stream_find_iter(bytes_before_last_selection)
8356 .map(|result| (last_selection.start, result))
8357 .chain(
8358 query
8359 .stream_find_iter(bytes_after_first_selection)
8360 .map(|result| (buffer.len(), result)),
8361 );
8362 for (end_offset, query_match) in query_matches {
8363 let query_match = query_match.unwrap(); // can only fail due to I/O
8364 let offset_range =
8365 end_offset - query_match.end()..end_offset - query_match.start();
8366 let display_range = offset_range.start.to_display_point(&display_map)
8367 ..offset_range.end.to_display_point(&display_map);
8368
8369 if !select_prev_state.wordwise
8370 || (!movement::is_inside_word(&display_map, display_range.start)
8371 && !movement::is_inside_word(&display_map, display_range.end))
8372 {
8373 next_selected_range = Some(offset_range);
8374 break;
8375 }
8376 }
8377
8378 if let Some(next_selected_range) = next_selected_range {
8379 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8380 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8381 if action.replace_newest {
8382 s.delete(s.newest_anchor().id);
8383 }
8384 s.insert_range(next_selected_range);
8385 });
8386 } else {
8387 select_prev_state.done = true;
8388 }
8389 }
8390
8391 self.select_prev_state = Some(select_prev_state);
8392 } else {
8393 let mut only_carets = true;
8394 let mut same_text_selected = true;
8395 let mut selected_text = None;
8396
8397 let mut selections_iter = selections.iter().peekable();
8398 while let Some(selection) = selections_iter.next() {
8399 if selection.start != selection.end {
8400 only_carets = false;
8401 }
8402
8403 if same_text_selected {
8404 if selected_text.is_none() {
8405 selected_text =
8406 Some(buffer.text_for_range(selection.range()).collect::<String>());
8407 }
8408
8409 if let Some(next_selection) = selections_iter.peek() {
8410 if next_selection.range().len() == selection.range().len() {
8411 let next_selected_text = buffer
8412 .text_for_range(next_selection.range())
8413 .collect::<String>();
8414 if Some(next_selected_text) != selected_text {
8415 same_text_selected = false;
8416 selected_text = None;
8417 }
8418 } else {
8419 same_text_selected = false;
8420 selected_text = None;
8421 }
8422 }
8423 }
8424 }
8425
8426 if only_carets {
8427 for selection in &mut selections {
8428 let word_range = movement::surrounding_word(
8429 &display_map,
8430 selection.start.to_display_point(&display_map),
8431 );
8432 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8433 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8434 selection.goal = SelectionGoal::None;
8435 selection.reversed = false;
8436 }
8437 if selections.len() == 1 {
8438 let selection = selections
8439 .last()
8440 .expect("ensured that there's only one selection");
8441 let query = buffer
8442 .text_for_range(selection.start..selection.end)
8443 .collect::<String>();
8444 let is_empty = query.is_empty();
8445 let select_state = SelectNextState {
8446 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8447 wordwise: true,
8448 done: is_empty,
8449 };
8450 self.select_prev_state = Some(select_state);
8451 } else {
8452 self.select_prev_state = None;
8453 }
8454
8455 self.unfold_ranges(
8456 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8457 false,
8458 true,
8459 cx,
8460 );
8461 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8462 s.select(selections);
8463 });
8464 } else if let Some(selected_text) = selected_text {
8465 self.select_prev_state = Some(SelectNextState {
8466 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8467 wordwise: false,
8468 done: false,
8469 });
8470 self.select_previous(action, cx)?;
8471 }
8472 }
8473 Ok(())
8474 }
8475
8476 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8477 if self.read_only(cx) {
8478 return;
8479 }
8480 let text_layout_details = &self.text_layout_details(cx);
8481 self.transact(cx, |this, cx| {
8482 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8483 let mut edits = Vec::new();
8484 let mut selection_edit_ranges = Vec::new();
8485 let mut last_toggled_row = None;
8486 let snapshot = this.buffer.read(cx).read(cx);
8487 let empty_str: Arc<str> = Arc::default();
8488 let mut suffixes_inserted = Vec::new();
8489 let ignore_indent = action.ignore_indent;
8490
8491 fn comment_prefix_range(
8492 snapshot: &MultiBufferSnapshot,
8493 row: MultiBufferRow,
8494 comment_prefix: &str,
8495 comment_prefix_whitespace: &str,
8496 ignore_indent: bool,
8497 ) -> Range<Point> {
8498 let indent_size = if ignore_indent {
8499 0
8500 } else {
8501 snapshot.indent_size_for_line(row).len
8502 };
8503
8504 let start = Point::new(row.0, indent_size);
8505
8506 let mut line_bytes = snapshot
8507 .bytes_in_range(start..snapshot.max_point())
8508 .flatten()
8509 .copied();
8510
8511 // If this line currently begins with the line comment prefix, then record
8512 // the range containing the prefix.
8513 if line_bytes
8514 .by_ref()
8515 .take(comment_prefix.len())
8516 .eq(comment_prefix.bytes())
8517 {
8518 // Include any whitespace that matches the comment prefix.
8519 let matching_whitespace_len = line_bytes
8520 .zip(comment_prefix_whitespace.bytes())
8521 .take_while(|(a, b)| a == b)
8522 .count() as u32;
8523 let end = Point::new(
8524 start.row,
8525 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8526 );
8527 start..end
8528 } else {
8529 start..start
8530 }
8531 }
8532
8533 fn comment_suffix_range(
8534 snapshot: &MultiBufferSnapshot,
8535 row: MultiBufferRow,
8536 comment_suffix: &str,
8537 comment_suffix_has_leading_space: bool,
8538 ) -> Range<Point> {
8539 let end = Point::new(row.0, snapshot.line_len(row));
8540 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8541
8542 let mut line_end_bytes = snapshot
8543 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8544 .flatten()
8545 .copied();
8546
8547 let leading_space_len = if suffix_start_column > 0
8548 && line_end_bytes.next() == Some(b' ')
8549 && comment_suffix_has_leading_space
8550 {
8551 1
8552 } else {
8553 0
8554 };
8555
8556 // If this line currently begins with the line comment prefix, then record
8557 // the range containing the prefix.
8558 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8559 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8560 start..end
8561 } else {
8562 end..end
8563 }
8564 }
8565
8566 // TODO: Handle selections that cross excerpts
8567 for selection in &mut selections {
8568 let start_column = snapshot
8569 .indent_size_for_line(MultiBufferRow(selection.start.row))
8570 .len;
8571 let language = if let Some(language) =
8572 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8573 {
8574 language
8575 } else {
8576 continue;
8577 };
8578
8579 selection_edit_ranges.clear();
8580
8581 // If multiple selections contain a given row, avoid processing that
8582 // row more than once.
8583 let mut start_row = MultiBufferRow(selection.start.row);
8584 if last_toggled_row == Some(start_row) {
8585 start_row = start_row.next_row();
8586 }
8587 let end_row =
8588 if selection.end.row > selection.start.row && selection.end.column == 0 {
8589 MultiBufferRow(selection.end.row - 1)
8590 } else {
8591 MultiBufferRow(selection.end.row)
8592 };
8593 last_toggled_row = Some(end_row);
8594
8595 if start_row > end_row {
8596 continue;
8597 }
8598
8599 // If the language has line comments, toggle those.
8600 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8601
8602 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8603 if ignore_indent {
8604 full_comment_prefixes = full_comment_prefixes
8605 .into_iter()
8606 .map(|s| Arc::from(s.trim_end()))
8607 .collect();
8608 }
8609
8610 if !full_comment_prefixes.is_empty() {
8611 let first_prefix = full_comment_prefixes
8612 .first()
8613 .expect("prefixes is non-empty");
8614 let prefix_trimmed_lengths = full_comment_prefixes
8615 .iter()
8616 .map(|p| p.trim_end_matches(' ').len())
8617 .collect::<SmallVec<[usize; 4]>>();
8618
8619 let mut all_selection_lines_are_comments = true;
8620
8621 for row in start_row.0..=end_row.0 {
8622 let row = MultiBufferRow(row);
8623 if start_row < end_row && snapshot.is_line_blank(row) {
8624 continue;
8625 }
8626
8627 let prefix_range = full_comment_prefixes
8628 .iter()
8629 .zip(prefix_trimmed_lengths.iter().copied())
8630 .map(|(prefix, trimmed_prefix_len)| {
8631 comment_prefix_range(
8632 snapshot.deref(),
8633 row,
8634 &prefix[..trimmed_prefix_len],
8635 &prefix[trimmed_prefix_len..],
8636 ignore_indent,
8637 )
8638 })
8639 .max_by_key(|range| range.end.column - range.start.column)
8640 .expect("prefixes is non-empty");
8641
8642 if prefix_range.is_empty() {
8643 all_selection_lines_are_comments = false;
8644 }
8645
8646 selection_edit_ranges.push(prefix_range);
8647 }
8648
8649 if all_selection_lines_are_comments {
8650 edits.extend(
8651 selection_edit_ranges
8652 .iter()
8653 .cloned()
8654 .map(|range| (range, empty_str.clone())),
8655 );
8656 } else {
8657 let min_column = selection_edit_ranges
8658 .iter()
8659 .map(|range| range.start.column)
8660 .min()
8661 .unwrap_or(0);
8662 edits.extend(selection_edit_ranges.iter().map(|range| {
8663 let position = Point::new(range.start.row, min_column);
8664 (position..position, first_prefix.clone())
8665 }));
8666 }
8667 } else if let Some((full_comment_prefix, comment_suffix)) =
8668 language.block_comment_delimiters()
8669 {
8670 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8671 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8672 let prefix_range = comment_prefix_range(
8673 snapshot.deref(),
8674 start_row,
8675 comment_prefix,
8676 comment_prefix_whitespace,
8677 ignore_indent,
8678 );
8679 let suffix_range = comment_suffix_range(
8680 snapshot.deref(),
8681 end_row,
8682 comment_suffix.trim_start_matches(' '),
8683 comment_suffix.starts_with(' '),
8684 );
8685
8686 if prefix_range.is_empty() || suffix_range.is_empty() {
8687 edits.push((
8688 prefix_range.start..prefix_range.start,
8689 full_comment_prefix.clone(),
8690 ));
8691 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8692 suffixes_inserted.push((end_row, comment_suffix.len()));
8693 } else {
8694 edits.push((prefix_range, empty_str.clone()));
8695 edits.push((suffix_range, empty_str.clone()));
8696 }
8697 } else {
8698 continue;
8699 }
8700 }
8701
8702 drop(snapshot);
8703 this.buffer.update(cx, |buffer, cx| {
8704 buffer.edit(edits, None, cx);
8705 });
8706
8707 // Adjust selections so that they end before any comment suffixes that
8708 // were inserted.
8709 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8710 let mut selections = this.selections.all::<Point>(cx);
8711 let snapshot = this.buffer.read(cx).read(cx);
8712 for selection in &mut selections {
8713 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8714 match row.cmp(&MultiBufferRow(selection.end.row)) {
8715 Ordering::Less => {
8716 suffixes_inserted.next();
8717 continue;
8718 }
8719 Ordering::Greater => break,
8720 Ordering::Equal => {
8721 if selection.end.column == snapshot.line_len(row) {
8722 if selection.is_empty() {
8723 selection.start.column -= suffix_len as u32;
8724 }
8725 selection.end.column -= suffix_len as u32;
8726 }
8727 break;
8728 }
8729 }
8730 }
8731 }
8732
8733 drop(snapshot);
8734 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8735
8736 let selections = this.selections.all::<Point>(cx);
8737 let selections_on_single_row = selections.windows(2).all(|selections| {
8738 selections[0].start.row == selections[1].start.row
8739 && selections[0].end.row == selections[1].end.row
8740 && selections[0].start.row == selections[0].end.row
8741 });
8742 let selections_selecting = selections
8743 .iter()
8744 .any(|selection| selection.start != selection.end);
8745 let advance_downwards = action.advance_downwards
8746 && selections_on_single_row
8747 && !selections_selecting
8748 && !matches!(this.mode, EditorMode::SingleLine { .. });
8749
8750 if advance_downwards {
8751 let snapshot = this.buffer.read(cx).snapshot(cx);
8752
8753 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8754 s.move_cursors_with(|display_snapshot, display_point, _| {
8755 let mut point = display_point.to_point(display_snapshot);
8756 point.row += 1;
8757 point = snapshot.clip_point(point, Bias::Left);
8758 let display_point = point.to_display_point(display_snapshot);
8759 let goal = SelectionGoal::HorizontalPosition(
8760 display_snapshot
8761 .x_for_display_point(display_point, text_layout_details)
8762 .into(),
8763 );
8764 (display_point, goal)
8765 })
8766 });
8767 }
8768 });
8769 }
8770
8771 pub fn select_enclosing_symbol(
8772 &mut self,
8773 _: &SelectEnclosingSymbol,
8774 cx: &mut ViewContext<Self>,
8775 ) {
8776 let buffer = self.buffer.read(cx).snapshot(cx);
8777 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8778
8779 fn update_selection(
8780 selection: &Selection<usize>,
8781 buffer_snap: &MultiBufferSnapshot,
8782 ) -> Option<Selection<usize>> {
8783 let cursor = selection.head();
8784 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8785 for symbol in symbols.iter().rev() {
8786 let start = symbol.range.start.to_offset(buffer_snap);
8787 let end = symbol.range.end.to_offset(buffer_snap);
8788 let new_range = start..end;
8789 if start < selection.start || end > selection.end {
8790 return Some(Selection {
8791 id: selection.id,
8792 start: new_range.start,
8793 end: new_range.end,
8794 goal: SelectionGoal::None,
8795 reversed: selection.reversed,
8796 });
8797 }
8798 }
8799 None
8800 }
8801
8802 let mut selected_larger_symbol = false;
8803 let new_selections = old_selections
8804 .iter()
8805 .map(|selection| match update_selection(selection, &buffer) {
8806 Some(new_selection) => {
8807 if new_selection.range() != selection.range() {
8808 selected_larger_symbol = true;
8809 }
8810 new_selection
8811 }
8812 None => selection.clone(),
8813 })
8814 .collect::<Vec<_>>();
8815
8816 if selected_larger_symbol {
8817 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8818 s.select(new_selections);
8819 });
8820 }
8821 }
8822
8823 pub fn select_larger_syntax_node(
8824 &mut self,
8825 _: &SelectLargerSyntaxNode,
8826 cx: &mut ViewContext<Self>,
8827 ) {
8828 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8829 let buffer = self.buffer.read(cx).snapshot(cx);
8830 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8831
8832 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8833 let mut selected_larger_node = false;
8834 let new_selections = old_selections
8835 .iter()
8836 .map(|selection| {
8837 let old_range = selection.start..selection.end;
8838 let mut new_range = old_range.clone();
8839 let mut new_node = None;
8840 while let Some((node, containing_range)) = buffer.syntax_ancestor(new_range.clone())
8841 {
8842 new_node = Some(node);
8843 new_range = containing_range;
8844 if !display_map.intersects_fold(new_range.start)
8845 && !display_map.intersects_fold(new_range.end)
8846 {
8847 break;
8848 }
8849 }
8850
8851 if let Some(node) = new_node {
8852 // Log the ancestor, to support using this action as a way to explore TreeSitter
8853 // nodes. Parent and grandparent are also logged because this operation will not
8854 // visit nodes that have the same range as their parent.
8855 log::info!("Node: {node:?}");
8856 let parent = node.parent();
8857 log::info!("Parent: {parent:?}");
8858 let grandparent = parent.and_then(|x| x.parent());
8859 log::info!("Grandparent: {grandparent:?}");
8860 }
8861
8862 selected_larger_node |= new_range != old_range;
8863 Selection {
8864 id: selection.id,
8865 start: new_range.start,
8866 end: new_range.end,
8867 goal: SelectionGoal::None,
8868 reversed: selection.reversed,
8869 }
8870 })
8871 .collect::<Vec<_>>();
8872
8873 if selected_larger_node {
8874 stack.push(old_selections);
8875 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8876 s.select(new_selections);
8877 });
8878 }
8879 self.select_larger_syntax_node_stack = stack;
8880 }
8881
8882 pub fn select_smaller_syntax_node(
8883 &mut self,
8884 _: &SelectSmallerSyntaxNode,
8885 cx: &mut ViewContext<Self>,
8886 ) {
8887 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8888 if let Some(selections) = stack.pop() {
8889 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8890 s.select(selections.to_vec());
8891 });
8892 }
8893 self.select_larger_syntax_node_stack = stack;
8894 }
8895
8896 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8897 if !EditorSettings::get_global(cx).gutter.runnables {
8898 self.clear_tasks();
8899 return Task::ready(());
8900 }
8901 let project = self.project.as_ref().map(Model::downgrade);
8902 cx.spawn(|this, mut cx| async move {
8903 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
8904 let Some(project) = project.and_then(|p| p.upgrade()) else {
8905 return;
8906 };
8907 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8908 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8909 }) else {
8910 return;
8911 };
8912
8913 let hide_runnables = project
8914 .update(&mut cx, |project, cx| {
8915 // Do not display any test indicators in non-dev server remote projects.
8916 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8917 })
8918 .unwrap_or(true);
8919 if hide_runnables {
8920 return;
8921 }
8922 let new_rows =
8923 cx.background_executor()
8924 .spawn({
8925 let snapshot = display_snapshot.clone();
8926 async move {
8927 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8928 }
8929 })
8930 .await;
8931 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8932
8933 this.update(&mut cx, |this, _| {
8934 this.clear_tasks();
8935 for (key, value) in rows {
8936 this.insert_tasks(key, value);
8937 }
8938 })
8939 .ok();
8940 })
8941 }
8942 fn fetch_runnable_ranges(
8943 snapshot: &DisplaySnapshot,
8944 range: Range<Anchor>,
8945 ) -> Vec<language::RunnableRange> {
8946 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8947 }
8948
8949 fn runnable_rows(
8950 project: Model<Project>,
8951 snapshot: DisplaySnapshot,
8952 runnable_ranges: Vec<RunnableRange>,
8953 mut cx: AsyncWindowContext,
8954 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8955 runnable_ranges
8956 .into_iter()
8957 .filter_map(|mut runnable| {
8958 let tasks = cx
8959 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8960 .ok()?;
8961 if tasks.is_empty() {
8962 return None;
8963 }
8964
8965 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8966
8967 let row = snapshot
8968 .buffer_snapshot
8969 .buffer_line_for_row(MultiBufferRow(point.row))?
8970 .1
8971 .start
8972 .row;
8973
8974 let context_range =
8975 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8976 Some((
8977 (runnable.buffer_id, row),
8978 RunnableTasks {
8979 templates: tasks,
8980 offset: MultiBufferOffset(runnable.run_range.start),
8981 context_range,
8982 column: point.column,
8983 extra_variables: runnable.extra_captures,
8984 },
8985 ))
8986 })
8987 .collect()
8988 }
8989
8990 fn templates_with_tags(
8991 project: &Model<Project>,
8992 runnable: &mut Runnable,
8993 cx: &WindowContext,
8994 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8995 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8996 let (worktree_id, file) = project
8997 .buffer_for_id(runnable.buffer, cx)
8998 .and_then(|buffer| buffer.read(cx).file())
8999 .map(|file| (file.worktree_id(cx), file.clone()))
9000 .unzip();
9001
9002 (
9003 project.task_store().read(cx).task_inventory().cloned(),
9004 worktree_id,
9005 file,
9006 )
9007 });
9008
9009 let tags = mem::take(&mut runnable.tags);
9010 let mut tags: Vec<_> = tags
9011 .into_iter()
9012 .flat_map(|tag| {
9013 let tag = tag.0.clone();
9014 inventory
9015 .as_ref()
9016 .into_iter()
9017 .flat_map(|inventory| {
9018 inventory.read(cx).list_tasks(
9019 file.clone(),
9020 Some(runnable.language.clone()),
9021 worktree_id,
9022 cx,
9023 )
9024 })
9025 .filter(move |(_, template)| {
9026 template.tags.iter().any(|source_tag| source_tag == &tag)
9027 })
9028 })
9029 .sorted_by_key(|(kind, _)| kind.to_owned())
9030 .collect();
9031 if let Some((leading_tag_source, _)) = tags.first() {
9032 // Strongest source wins; if we have worktree tag binding, prefer that to
9033 // global and language bindings;
9034 // if we have a global binding, prefer that to language binding.
9035 let first_mismatch = tags
9036 .iter()
9037 .position(|(tag_source, _)| tag_source != leading_tag_source);
9038 if let Some(index) = first_mismatch {
9039 tags.truncate(index);
9040 }
9041 }
9042
9043 tags
9044 }
9045
9046 pub fn move_to_enclosing_bracket(
9047 &mut self,
9048 _: &MoveToEnclosingBracket,
9049 cx: &mut ViewContext<Self>,
9050 ) {
9051 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9052 s.move_offsets_with(|snapshot, selection| {
9053 let Some(enclosing_bracket_ranges) =
9054 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9055 else {
9056 return;
9057 };
9058
9059 let mut best_length = usize::MAX;
9060 let mut best_inside = false;
9061 let mut best_in_bracket_range = false;
9062 let mut best_destination = None;
9063 for (open, close) in enclosing_bracket_ranges {
9064 let close = close.to_inclusive();
9065 let length = close.end() - open.start;
9066 let inside = selection.start >= open.end && selection.end <= *close.start();
9067 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9068 || close.contains(&selection.head());
9069
9070 // If best is next to a bracket and current isn't, skip
9071 if !in_bracket_range && best_in_bracket_range {
9072 continue;
9073 }
9074
9075 // Prefer smaller lengths unless best is inside and current isn't
9076 if length > best_length && (best_inside || !inside) {
9077 continue;
9078 }
9079
9080 best_length = length;
9081 best_inside = inside;
9082 best_in_bracket_range = in_bracket_range;
9083 best_destination = Some(
9084 if close.contains(&selection.start) && close.contains(&selection.end) {
9085 if inside {
9086 open.end
9087 } else {
9088 open.start
9089 }
9090 } else if inside {
9091 *close.start()
9092 } else {
9093 *close.end()
9094 },
9095 );
9096 }
9097
9098 if let Some(destination) = best_destination {
9099 selection.collapse_to(destination, SelectionGoal::None);
9100 }
9101 })
9102 });
9103 }
9104
9105 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9106 self.end_selection(cx);
9107 self.selection_history.mode = SelectionHistoryMode::Undoing;
9108 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9109 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9110 self.select_next_state = entry.select_next_state;
9111 self.select_prev_state = entry.select_prev_state;
9112 self.add_selections_state = entry.add_selections_state;
9113 self.request_autoscroll(Autoscroll::newest(), cx);
9114 }
9115 self.selection_history.mode = SelectionHistoryMode::Normal;
9116 }
9117
9118 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9119 self.end_selection(cx);
9120 self.selection_history.mode = SelectionHistoryMode::Redoing;
9121 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9122 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9123 self.select_next_state = entry.select_next_state;
9124 self.select_prev_state = entry.select_prev_state;
9125 self.add_selections_state = entry.add_selections_state;
9126 self.request_autoscroll(Autoscroll::newest(), cx);
9127 }
9128 self.selection_history.mode = SelectionHistoryMode::Normal;
9129 }
9130
9131 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9132 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9133 }
9134
9135 pub fn expand_excerpts_down(
9136 &mut self,
9137 action: &ExpandExcerptsDown,
9138 cx: &mut ViewContext<Self>,
9139 ) {
9140 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9141 }
9142
9143 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9144 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9145 }
9146
9147 pub fn expand_excerpts_for_direction(
9148 &mut self,
9149 lines: u32,
9150 direction: ExpandExcerptDirection,
9151 cx: &mut ViewContext<Self>,
9152 ) {
9153 let selections = self.selections.disjoint_anchors();
9154
9155 let lines = if lines == 0 {
9156 EditorSettings::get_global(cx).expand_excerpt_lines
9157 } else {
9158 lines
9159 };
9160
9161 self.buffer.update(cx, |buffer, cx| {
9162 let snapshot = buffer.snapshot(cx);
9163 let mut excerpt_ids = selections
9164 .iter()
9165 .flat_map(|selection| {
9166 snapshot
9167 .excerpts_for_range(selection.range())
9168 .map(|excerpt| excerpt.id())
9169 })
9170 .collect::<Vec<_>>();
9171 excerpt_ids.sort();
9172 excerpt_ids.dedup();
9173 buffer.expand_excerpts(excerpt_ids, lines, direction, cx)
9174 })
9175 }
9176
9177 pub fn expand_excerpt(
9178 &mut self,
9179 excerpt: ExcerptId,
9180 direction: ExpandExcerptDirection,
9181 cx: &mut ViewContext<Self>,
9182 ) {
9183 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9184 self.buffer.update(cx, |buffer, cx| {
9185 buffer.expand_excerpts([excerpt], lines, direction, cx)
9186 })
9187 }
9188
9189 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9190 self.go_to_diagnostic_impl(Direction::Next, cx)
9191 }
9192
9193 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9194 self.go_to_diagnostic_impl(Direction::Prev, cx)
9195 }
9196
9197 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9198 let buffer = self.buffer.read(cx).snapshot(cx);
9199 let selection = self.selections.newest::<usize>(cx);
9200
9201 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9202 if direction == Direction::Next {
9203 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9204 self.activate_diagnostics(popover.group_id(), cx);
9205 if let Some(active_diagnostics) = self.active_diagnostics.as_ref() {
9206 let primary_range_start = active_diagnostics.primary_range.start;
9207 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9208 let mut new_selection = s.newest_anchor().clone();
9209 new_selection.collapse_to(primary_range_start, SelectionGoal::None);
9210 s.select_anchors(vec![new_selection.clone()]);
9211 });
9212 }
9213 return;
9214 }
9215 }
9216
9217 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9218 active_diagnostics
9219 .primary_range
9220 .to_offset(&buffer)
9221 .to_inclusive()
9222 });
9223 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9224 if active_primary_range.contains(&selection.head()) {
9225 *active_primary_range.start()
9226 } else {
9227 selection.head()
9228 }
9229 } else {
9230 selection.head()
9231 };
9232 let snapshot = self.snapshot(cx);
9233 loop {
9234 let diagnostics = if direction == Direction::Prev {
9235 buffer
9236 .diagnostics_in_range(0..search_start, true)
9237 .map(|DiagnosticEntry { diagnostic, range }| DiagnosticEntry {
9238 diagnostic,
9239 range: range.to_offset(&buffer),
9240 })
9241 .collect::<Vec<_>>()
9242 } else {
9243 buffer
9244 .diagnostics_in_range(search_start..buffer.len(), false)
9245 .map(|DiagnosticEntry { diagnostic, range }| DiagnosticEntry {
9246 diagnostic,
9247 range: range.to_offset(&buffer),
9248 })
9249 .collect::<Vec<_>>()
9250 }
9251 .into_iter()
9252 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9253 let group = diagnostics
9254 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9255 // be sorted in a stable way
9256 // skip until we are at current active diagnostic, if it exists
9257 .skip_while(|entry| {
9258 (match direction {
9259 Direction::Prev => entry.range.start >= search_start,
9260 Direction::Next => entry.range.start <= search_start,
9261 }) && self
9262 .active_diagnostics
9263 .as_ref()
9264 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9265 })
9266 .find_map(|entry| {
9267 if entry.diagnostic.is_primary
9268 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9269 && !entry.range.is_empty()
9270 // if we match with the active diagnostic, skip it
9271 && Some(entry.diagnostic.group_id)
9272 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9273 {
9274 Some((entry.range, entry.diagnostic.group_id))
9275 } else {
9276 None
9277 }
9278 });
9279
9280 if let Some((primary_range, group_id)) = group {
9281 self.activate_diagnostics(group_id, cx);
9282 if self.active_diagnostics.is_some() {
9283 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9284 s.select(vec![Selection {
9285 id: selection.id,
9286 start: primary_range.start,
9287 end: primary_range.start,
9288 reversed: false,
9289 goal: SelectionGoal::None,
9290 }]);
9291 });
9292 }
9293 break;
9294 } else {
9295 // Cycle around to the start of the buffer, potentially moving back to the start of
9296 // the currently active diagnostic.
9297 active_primary_range.take();
9298 if direction == Direction::Prev {
9299 if search_start == buffer.len() {
9300 break;
9301 } else {
9302 search_start = buffer.len();
9303 }
9304 } else if search_start == 0 {
9305 break;
9306 } else {
9307 search_start = 0;
9308 }
9309 }
9310 }
9311 }
9312
9313 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9314 let snapshot = self.snapshot(cx);
9315 let selection = self.selections.newest::<Point>(cx);
9316 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9317 }
9318
9319 fn go_to_hunk_after_position(
9320 &mut self,
9321 snapshot: &EditorSnapshot,
9322 position: Point,
9323 cx: &mut ViewContext<Editor>,
9324 ) -> Option<MultiBufferDiffHunk> {
9325 for (ix, position) in [position, Point::zero()].into_iter().enumerate() {
9326 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9327 snapshot,
9328 position,
9329 ix > 0,
9330 snapshot.diff_map.diff_hunks_in_range(
9331 position + Point::new(1, 0)..snapshot.buffer_snapshot.max_point(),
9332 &snapshot.buffer_snapshot,
9333 ),
9334 cx,
9335 ) {
9336 return Some(hunk);
9337 }
9338 }
9339 None
9340 }
9341
9342 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9343 let snapshot = self.snapshot(cx);
9344 let selection = self.selections.newest::<Point>(cx);
9345 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9346 }
9347
9348 fn go_to_hunk_before_position(
9349 &mut self,
9350 snapshot: &EditorSnapshot,
9351 position: Point,
9352 cx: &mut ViewContext<Editor>,
9353 ) -> Option<MultiBufferDiffHunk> {
9354 for (ix, position) in [position, snapshot.buffer_snapshot.max_point()]
9355 .into_iter()
9356 .enumerate()
9357 {
9358 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9359 snapshot,
9360 position,
9361 ix > 0,
9362 snapshot
9363 .diff_map
9364 .diff_hunks_in_range_rev(Point::zero()..position, &snapshot.buffer_snapshot),
9365 cx,
9366 ) {
9367 return Some(hunk);
9368 }
9369 }
9370 None
9371 }
9372
9373 fn go_to_next_hunk_in_direction(
9374 &mut self,
9375 snapshot: &DisplaySnapshot,
9376 initial_point: Point,
9377 is_wrapped: bool,
9378 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9379 cx: &mut ViewContext<Editor>,
9380 ) -> Option<MultiBufferDiffHunk> {
9381 let display_point = initial_point.to_display_point(snapshot);
9382 let mut hunks = hunks
9383 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9384 .filter(|(display_hunk, _)| {
9385 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9386 })
9387 .dedup();
9388
9389 if let Some((display_hunk, hunk)) = hunks.next() {
9390 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9391 let row = display_hunk.start_display_row();
9392 let point = DisplayPoint::new(row, 0);
9393 s.select_display_ranges([point..point]);
9394 });
9395
9396 Some(hunk)
9397 } else {
9398 None
9399 }
9400 }
9401
9402 pub fn go_to_definition(
9403 &mut self,
9404 _: &GoToDefinition,
9405 cx: &mut ViewContext<Self>,
9406 ) -> Task<Result<Navigated>> {
9407 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9408 cx.spawn(|editor, mut cx| async move {
9409 if definition.await? == Navigated::Yes {
9410 return Ok(Navigated::Yes);
9411 }
9412 match editor.update(&mut cx, |editor, cx| {
9413 editor.find_all_references(&FindAllReferences, cx)
9414 })? {
9415 Some(references) => references.await,
9416 None => Ok(Navigated::No),
9417 }
9418 })
9419 }
9420
9421 pub fn go_to_declaration(
9422 &mut self,
9423 _: &GoToDeclaration,
9424 cx: &mut ViewContext<Self>,
9425 ) -> Task<Result<Navigated>> {
9426 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9427 }
9428
9429 pub fn go_to_declaration_split(
9430 &mut self,
9431 _: &GoToDeclaration,
9432 cx: &mut ViewContext<Self>,
9433 ) -> Task<Result<Navigated>> {
9434 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9435 }
9436
9437 pub fn go_to_implementation(
9438 &mut self,
9439 _: &GoToImplementation,
9440 cx: &mut ViewContext<Self>,
9441 ) -> Task<Result<Navigated>> {
9442 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9443 }
9444
9445 pub fn go_to_implementation_split(
9446 &mut self,
9447 _: &GoToImplementationSplit,
9448 cx: &mut ViewContext<Self>,
9449 ) -> Task<Result<Navigated>> {
9450 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9451 }
9452
9453 pub fn go_to_type_definition(
9454 &mut self,
9455 _: &GoToTypeDefinition,
9456 cx: &mut ViewContext<Self>,
9457 ) -> Task<Result<Navigated>> {
9458 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9459 }
9460
9461 pub fn go_to_definition_split(
9462 &mut self,
9463 _: &GoToDefinitionSplit,
9464 cx: &mut ViewContext<Self>,
9465 ) -> Task<Result<Navigated>> {
9466 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9467 }
9468
9469 pub fn go_to_type_definition_split(
9470 &mut self,
9471 _: &GoToTypeDefinitionSplit,
9472 cx: &mut ViewContext<Self>,
9473 ) -> Task<Result<Navigated>> {
9474 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9475 }
9476
9477 fn go_to_definition_of_kind(
9478 &mut self,
9479 kind: GotoDefinitionKind,
9480 split: bool,
9481 cx: &mut ViewContext<Self>,
9482 ) -> Task<Result<Navigated>> {
9483 let Some(provider) = self.semantics_provider.clone() else {
9484 return Task::ready(Ok(Navigated::No));
9485 };
9486 let head = self.selections.newest::<usize>(cx).head();
9487 let buffer = self.buffer.read(cx);
9488 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9489 text_anchor
9490 } else {
9491 return Task::ready(Ok(Navigated::No));
9492 };
9493
9494 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9495 return Task::ready(Ok(Navigated::No));
9496 };
9497
9498 cx.spawn(|editor, mut cx| async move {
9499 let definitions = definitions.await?;
9500 let navigated = editor
9501 .update(&mut cx, |editor, cx| {
9502 editor.navigate_to_hover_links(
9503 Some(kind),
9504 definitions
9505 .into_iter()
9506 .filter(|location| {
9507 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9508 })
9509 .map(HoverLink::Text)
9510 .collect::<Vec<_>>(),
9511 split,
9512 cx,
9513 )
9514 })?
9515 .await?;
9516 anyhow::Ok(navigated)
9517 })
9518 }
9519
9520 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9521 let selection = self.selections.newest_anchor();
9522 let head = selection.head();
9523 let tail = selection.tail();
9524
9525 let Some((buffer, start_position)) =
9526 self.buffer.read(cx).text_anchor_for_position(head, cx)
9527 else {
9528 return;
9529 };
9530
9531 let end_position = if head != tail {
9532 let Some((_, pos)) = self.buffer.read(cx).text_anchor_for_position(tail, cx) else {
9533 return;
9534 };
9535 Some(pos)
9536 } else {
9537 None
9538 };
9539
9540 let url_finder = cx.spawn(|editor, mut cx| async move {
9541 let url = if let Some(end_pos) = end_position {
9542 find_url_from_range(&buffer, start_position..end_pos, cx.clone())
9543 } else {
9544 find_url(&buffer, start_position, cx.clone()).map(|(_, url)| url)
9545 };
9546
9547 if let Some(url) = url {
9548 editor.update(&mut cx, |_, cx| {
9549 cx.open_url(&url);
9550 })
9551 } else {
9552 Ok(())
9553 }
9554 });
9555
9556 url_finder.detach();
9557 }
9558
9559 pub fn open_selected_filename(&mut self, _: &OpenSelectedFilename, cx: &mut ViewContext<Self>) {
9560 let Some(workspace) = self.workspace() else {
9561 return;
9562 };
9563
9564 let position = self.selections.newest_anchor().head();
9565
9566 let Some((buffer, buffer_position)) =
9567 self.buffer.read(cx).text_anchor_for_position(position, cx)
9568 else {
9569 return;
9570 };
9571
9572 let project = self.project.clone();
9573
9574 cx.spawn(|_, mut cx| async move {
9575 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9576
9577 if let Some((_, path)) = result {
9578 workspace
9579 .update(&mut cx, |workspace, cx| {
9580 workspace.open_resolved_path(path, cx)
9581 })?
9582 .await?;
9583 }
9584 anyhow::Ok(())
9585 })
9586 .detach();
9587 }
9588
9589 pub(crate) fn navigate_to_hover_links(
9590 &mut self,
9591 kind: Option<GotoDefinitionKind>,
9592 mut definitions: Vec<HoverLink>,
9593 split: bool,
9594 cx: &mut ViewContext<Editor>,
9595 ) -> Task<Result<Navigated>> {
9596 // If there is one definition, just open it directly
9597 if definitions.len() == 1 {
9598 let definition = definitions.pop().unwrap();
9599
9600 enum TargetTaskResult {
9601 Location(Option<Location>),
9602 AlreadyNavigated,
9603 }
9604
9605 let target_task = match definition {
9606 HoverLink::Text(link) => {
9607 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9608 }
9609 HoverLink::InlayHint(lsp_location, server_id) => {
9610 let computation = self.compute_target_location(lsp_location, server_id, cx);
9611 cx.background_executor().spawn(async move {
9612 let location = computation.await?;
9613 Ok(TargetTaskResult::Location(location))
9614 })
9615 }
9616 HoverLink::Url(url) => {
9617 cx.open_url(&url);
9618 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9619 }
9620 HoverLink::File(path) => {
9621 if let Some(workspace) = self.workspace() {
9622 cx.spawn(|_, mut cx| async move {
9623 workspace
9624 .update(&mut cx, |workspace, cx| {
9625 workspace.open_resolved_path(path, cx)
9626 })?
9627 .await
9628 .map(|_| TargetTaskResult::AlreadyNavigated)
9629 })
9630 } else {
9631 Task::ready(Ok(TargetTaskResult::Location(None)))
9632 }
9633 }
9634 };
9635 cx.spawn(|editor, mut cx| async move {
9636 let target = match target_task.await.context("target resolution task")? {
9637 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9638 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9639 TargetTaskResult::Location(Some(target)) => target,
9640 };
9641
9642 editor.update(&mut cx, |editor, cx| {
9643 let Some(workspace) = editor.workspace() else {
9644 return Navigated::No;
9645 };
9646 let pane = workspace.read(cx).active_pane().clone();
9647
9648 let range = target.range.to_offset(target.buffer.read(cx));
9649 let range = editor.range_for_match(&range);
9650
9651 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9652 let buffer = target.buffer.read(cx);
9653 let range = check_multiline_range(buffer, range);
9654 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9655 s.select_ranges([range]);
9656 });
9657 } else {
9658 cx.window_context().defer(move |cx| {
9659 let target_editor: View<Self> =
9660 workspace.update(cx, |workspace, cx| {
9661 let pane = if split {
9662 workspace.adjacent_pane(cx)
9663 } else {
9664 workspace.active_pane().clone()
9665 };
9666
9667 workspace.open_project_item(
9668 pane,
9669 target.buffer.clone(),
9670 true,
9671 true,
9672 cx,
9673 )
9674 });
9675 target_editor.update(cx, |target_editor, cx| {
9676 // When selecting a definition in a different buffer, disable the nav history
9677 // to avoid creating a history entry at the previous cursor location.
9678 pane.update(cx, |pane, _| pane.disable_history());
9679 let buffer = target.buffer.read(cx);
9680 let range = check_multiline_range(buffer, range);
9681 target_editor.change_selections(
9682 Some(Autoscroll::focused()),
9683 cx,
9684 |s| {
9685 s.select_ranges([range]);
9686 },
9687 );
9688 pane.update(cx, |pane, _| pane.enable_history());
9689 });
9690 });
9691 }
9692 Navigated::Yes
9693 })
9694 })
9695 } else if !definitions.is_empty() {
9696 cx.spawn(|editor, mut cx| async move {
9697 let (title, location_tasks, workspace) = editor
9698 .update(&mut cx, |editor, cx| {
9699 let tab_kind = match kind {
9700 Some(GotoDefinitionKind::Implementation) => "Implementations",
9701 _ => "Definitions",
9702 };
9703 let title = definitions
9704 .iter()
9705 .find_map(|definition| match definition {
9706 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9707 let buffer = origin.buffer.read(cx);
9708 format!(
9709 "{} for {}",
9710 tab_kind,
9711 buffer
9712 .text_for_range(origin.range.clone())
9713 .collect::<String>()
9714 )
9715 }),
9716 HoverLink::InlayHint(_, _) => None,
9717 HoverLink::Url(_) => None,
9718 HoverLink::File(_) => None,
9719 })
9720 .unwrap_or(tab_kind.to_string());
9721 let location_tasks = definitions
9722 .into_iter()
9723 .map(|definition| match definition {
9724 HoverLink::Text(link) => Task::ready(Ok(Some(link.target))),
9725 HoverLink::InlayHint(lsp_location, server_id) => {
9726 editor.compute_target_location(lsp_location, server_id, cx)
9727 }
9728 HoverLink::Url(_) => Task::ready(Ok(None)),
9729 HoverLink::File(_) => Task::ready(Ok(None)),
9730 })
9731 .collect::<Vec<_>>();
9732 (title, location_tasks, editor.workspace().clone())
9733 })
9734 .context("location tasks preparation")?;
9735
9736 let locations = future::join_all(location_tasks)
9737 .await
9738 .into_iter()
9739 .filter_map(|location| location.transpose())
9740 .collect::<Result<_>>()
9741 .context("location tasks")?;
9742
9743 let Some(workspace) = workspace else {
9744 return Ok(Navigated::No);
9745 };
9746 let opened = workspace
9747 .update(&mut cx, |workspace, cx| {
9748 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9749 })
9750 .ok();
9751
9752 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9753 })
9754 } else {
9755 Task::ready(Ok(Navigated::No))
9756 }
9757 }
9758
9759 fn compute_target_location(
9760 &self,
9761 lsp_location: lsp::Location,
9762 server_id: LanguageServerId,
9763 cx: &mut ViewContext<Self>,
9764 ) -> Task<anyhow::Result<Option<Location>>> {
9765 let Some(project) = self.project.clone() else {
9766 return Task::ready(Ok(None));
9767 };
9768
9769 cx.spawn(move |editor, mut cx| async move {
9770 let location_task = editor.update(&mut cx, |_, cx| {
9771 project.update(cx, |project, cx| {
9772 let language_server_name = project
9773 .language_server_statuses(cx)
9774 .find(|(id, _)| server_id == *id)
9775 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9776 language_server_name.map(|language_server_name| {
9777 project.open_local_buffer_via_lsp(
9778 lsp_location.uri.clone(),
9779 server_id,
9780 language_server_name,
9781 cx,
9782 )
9783 })
9784 })
9785 })?;
9786 let location = match location_task {
9787 Some(task) => Some({
9788 let target_buffer_handle = task.await.context("open local buffer")?;
9789 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9790 let target_start = target_buffer
9791 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9792 let target_end = target_buffer
9793 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9794 target_buffer.anchor_after(target_start)
9795 ..target_buffer.anchor_before(target_end)
9796 })?;
9797 Location {
9798 buffer: target_buffer_handle,
9799 range,
9800 }
9801 }),
9802 None => None,
9803 };
9804 Ok(location)
9805 })
9806 }
9807
9808 pub fn find_all_references(
9809 &mut self,
9810 _: &FindAllReferences,
9811 cx: &mut ViewContext<Self>,
9812 ) -> Option<Task<Result<Navigated>>> {
9813 let selection = self.selections.newest::<usize>(cx);
9814 let multi_buffer = self.buffer.read(cx);
9815 let head = selection.head();
9816
9817 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9818 let head_anchor = multi_buffer_snapshot.anchor_at(
9819 head,
9820 if head < selection.tail() {
9821 Bias::Right
9822 } else {
9823 Bias::Left
9824 },
9825 );
9826
9827 match self
9828 .find_all_references_task_sources
9829 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9830 {
9831 Ok(_) => {
9832 log::info!(
9833 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9834 );
9835 return None;
9836 }
9837 Err(i) => {
9838 self.find_all_references_task_sources.insert(i, head_anchor);
9839 }
9840 }
9841
9842 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9843 let workspace = self.workspace()?;
9844 let project = workspace.read(cx).project().clone();
9845 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9846 Some(cx.spawn(|editor, mut cx| async move {
9847 let _cleanup = defer({
9848 let mut cx = cx.clone();
9849 move || {
9850 let _ = editor.update(&mut cx, |editor, _| {
9851 if let Ok(i) =
9852 editor
9853 .find_all_references_task_sources
9854 .binary_search_by(|anchor| {
9855 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9856 })
9857 {
9858 editor.find_all_references_task_sources.remove(i);
9859 }
9860 });
9861 }
9862 });
9863
9864 let locations = references.await?;
9865 if locations.is_empty() {
9866 return anyhow::Ok(Navigated::No);
9867 }
9868
9869 workspace.update(&mut cx, |workspace, cx| {
9870 let title = locations
9871 .first()
9872 .as_ref()
9873 .map(|location| {
9874 let buffer = location.buffer.read(cx);
9875 format!(
9876 "References to `{}`",
9877 buffer
9878 .text_for_range(location.range.clone())
9879 .collect::<String>()
9880 )
9881 })
9882 .unwrap();
9883 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9884 Navigated::Yes
9885 })
9886 }))
9887 }
9888
9889 /// Opens a multibuffer with the given project locations in it
9890 pub fn open_locations_in_multibuffer(
9891 workspace: &mut Workspace,
9892 mut locations: Vec<Location>,
9893 title: String,
9894 split: bool,
9895 cx: &mut ViewContext<Workspace>,
9896 ) {
9897 // If there are multiple definitions, open them in a multibuffer
9898 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9899 let mut locations = locations.into_iter().peekable();
9900 let mut ranges_to_highlight = Vec::new();
9901 let capability = workspace.project().read(cx).capability();
9902
9903 let excerpt_buffer = cx.new_model(|cx| {
9904 let mut multibuffer = MultiBuffer::new(capability);
9905 while let Some(location) = locations.next() {
9906 let buffer = location.buffer.read(cx);
9907 let mut ranges_for_buffer = Vec::new();
9908 let range = location.range.to_offset(buffer);
9909 ranges_for_buffer.push(range.clone());
9910
9911 while let Some(next_location) = locations.peek() {
9912 if next_location.buffer == location.buffer {
9913 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9914 locations.next();
9915 } else {
9916 break;
9917 }
9918 }
9919
9920 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9921 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9922 location.buffer.clone(),
9923 ranges_for_buffer,
9924 DEFAULT_MULTIBUFFER_CONTEXT,
9925 cx,
9926 ))
9927 }
9928
9929 multibuffer.with_title(title)
9930 });
9931
9932 let editor = cx.new_view(|cx| {
9933 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9934 });
9935 editor.update(cx, |editor, cx| {
9936 if let Some(first_range) = ranges_to_highlight.first() {
9937 editor.change_selections(None, cx, |selections| {
9938 selections.clear_disjoint();
9939 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9940 });
9941 }
9942 editor.highlight_background::<Self>(
9943 &ranges_to_highlight,
9944 |theme| theme.editor_highlighted_line_background,
9945 cx,
9946 );
9947 editor.register_buffers_with_language_servers(cx);
9948 });
9949
9950 let item = Box::new(editor);
9951 let item_id = item.item_id();
9952
9953 if split {
9954 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9955 } else {
9956 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9957 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9958 pane.close_current_preview_item(cx)
9959 } else {
9960 None
9961 }
9962 });
9963 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9964 }
9965 workspace.active_pane().update(cx, |pane, cx| {
9966 pane.set_preview_item_id(Some(item_id), cx);
9967 });
9968 }
9969
9970 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9971 use language::ToOffset as _;
9972
9973 let provider = self.semantics_provider.clone()?;
9974 let selection = self.selections.newest_anchor().clone();
9975 let (cursor_buffer, cursor_buffer_position) = self
9976 .buffer
9977 .read(cx)
9978 .text_anchor_for_position(selection.head(), cx)?;
9979 let (tail_buffer, cursor_buffer_position_end) = self
9980 .buffer
9981 .read(cx)
9982 .text_anchor_for_position(selection.tail(), cx)?;
9983 if tail_buffer != cursor_buffer {
9984 return None;
9985 }
9986
9987 let snapshot = cursor_buffer.read(cx).snapshot();
9988 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9989 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9990 let prepare_rename = provider
9991 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
9992 .unwrap_or_else(|| Task::ready(Ok(None)));
9993 drop(snapshot);
9994
9995 Some(cx.spawn(|this, mut cx| async move {
9996 let rename_range = if let Some(range) = prepare_rename.await? {
9997 Some(range)
9998 } else {
9999 this.update(&mut cx, |this, cx| {
10000 let buffer = this.buffer.read(cx).snapshot(cx);
10001 let mut buffer_highlights = this
10002 .document_highlights_for_position(selection.head(), &buffer)
10003 .filter(|highlight| {
10004 highlight.start.excerpt_id == selection.head().excerpt_id
10005 && highlight.end.excerpt_id == selection.head().excerpt_id
10006 });
10007 buffer_highlights
10008 .next()
10009 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10010 })?
10011 };
10012 if let Some(rename_range) = rename_range {
10013 this.update(&mut cx, |this, cx| {
10014 let snapshot = cursor_buffer.read(cx).snapshot();
10015 let rename_buffer_range = rename_range.to_offset(&snapshot);
10016 let cursor_offset_in_rename_range =
10017 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10018 let cursor_offset_in_rename_range_end =
10019 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10020
10021 this.take_rename(false, cx);
10022 let buffer = this.buffer.read(cx).read(cx);
10023 let cursor_offset = selection.head().to_offset(&buffer);
10024 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10025 let rename_end = rename_start + rename_buffer_range.len();
10026 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10027 let mut old_highlight_id = None;
10028 let old_name: Arc<str> = buffer
10029 .chunks(rename_start..rename_end, true)
10030 .map(|chunk| {
10031 if old_highlight_id.is_none() {
10032 old_highlight_id = chunk.syntax_highlight_id;
10033 }
10034 chunk.text
10035 })
10036 .collect::<String>()
10037 .into();
10038
10039 drop(buffer);
10040
10041 // Position the selection in the rename editor so that it matches the current selection.
10042 this.show_local_selections = false;
10043 let rename_editor = cx.new_view(|cx| {
10044 let mut editor = Editor::single_line(cx);
10045 editor.buffer.update(cx, |buffer, cx| {
10046 buffer.edit([(0..0, old_name.clone())], None, cx)
10047 });
10048 let rename_selection_range = match cursor_offset_in_rename_range
10049 .cmp(&cursor_offset_in_rename_range_end)
10050 {
10051 Ordering::Equal => {
10052 editor.select_all(&SelectAll, cx);
10053 return editor;
10054 }
10055 Ordering::Less => {
10056 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10057 }
10058 Ordering::Greater => {
10059 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10060 }
10061 };
10062 if rename_selection_range.end > old_name.len() {
10063 editor.select_all(&SelectAll, cx);
10064 } else {
10065 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10066 s.select_ranges([rename_selection_range]);
10067 });
10068 }
10069 editor
10070 });
10071 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10072 if e == &EditorEvent::Focused {
10073 cx.emit(EditorEvent::FocusedIn)
10074 }
10075 })
10076 .detach();
10077
10078 let write_highlights =
10079 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10080 let read_highlights =
10081 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10082 let ranges = write_highlights
10083 .iter()
10084 .flat_map(|(_, ranges)| ranges.iter())
10085 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10086 .cloned()
10087 .collect();
10088
10089 this.highlight_text::<Rename>(
10090 ranges,
10091 HighlightStyle {
10092 fade_out: Some(0.6),
10093 ..Default::default()
10094 },
10095 cx,
10096 );
10097 let rename_focus_handle = rename_editor.focus_handle(cx);
10098 cx.focus(&rename_focus_handle);
10099 let block_id = this.insert_blocks(
10100 [BlockProperties {
10101 style: BlockStyle::Flex,
10102 placement: BlockPlacement::Below(range.start),
10103 height: 1,
10104 render: Arc::new({
10105 let rename_editor = rename_editor.clone();
10106 move |cx: &mut BlockContext| {
10107 let mut text_style = cx.editor_style.text.clone();
10108 if let Some(highlight_style) = old_highlight_id
10109 .and_then(|h| h.style(&cx.editor_style.syntax))
10110 {
10111 text_style = text_style.highlight(highlight_style);
10112 }
10113 div()
10114 .block_mouse_down()
10115 .pl(cx.anchor_x)
10116 .child(EditorElement::new(
10117 &rename_editor,
10118 EditorStyle {
10119 background: cx.theme().system().transparent,
10120 local_player: cx.editor_style.local_player,
10121 text: text_style,
10122 scrollbar_width: cx.editor_style.scrollbar_width,
10123 syntax: cx.editor_style.syntax.clone(),
10124 status: cx.editor_style.status.clone(),
10125 inlay_hints_style: HighlightStyle {
10126 font_weight: Some(FontWeight::BOLD),
10127 ..make_inlay_hints_style(cx)
10128 },
10129 inline_completion_styles: make_suggestion_styles(
10130 cx,
10131 ),
10132 ..EditorStyle::default()
10133 },
10134 ))
10135 .into_any_element()
10136 }
10137 }),
10138 priority: 0,
10139 }],
10140 Some(Autoscroll::fit()),
10141 cx,
10142 )[0];
10143 this.pending_rename = Some(RenameState {
10144 range,
10145 old_name,
10146 editor: rename_editor,
10147 block_id,
10148 });
10149 })?;
10150 }
10151
10152 Ok(())
10153 }))
10154 }
10155
10156 pub fn confirm_rename(
10157 &mut self,
10158 _: &ConfirmRename,
10159 cx: &mut ViewContext<Self>,
10160 ) -> Option<Task<Result<()>>> {
10161 let rename = self.take_rename(false, cx)?;
10162 let workspace = self.workspace()?.downgrade();
10163 let (buffer, start) = self
10164 .buffer
10165 .read(cx)
10166 .text_anchor_for_position(rename.range.start, cx)?;
10167 let (end_buffer, _) = self
10168 .buffer
10169 .read(cx)
10170 .text_anchor_for_position(rename.range.end, cx)?;
10171 if buffer != end_buffer {
10172 return None;
10173 }
10174
10175 let old_name = rename.old_name;
10176 let new_name = rename.editor.read(cx).text(cx);
10177
10178 let rename = self.semantics_provider.as_ref()?.perform_rename(
10179 &buffer,
10180 start,
10181 new_name.clone(),
10182 cx,
10183 )?;
10184
10185 Some(cx.spawn(|editor, mut cx| async move {
10186 let project_transaction = rename.await?;
10187 Self::open_project_transaction(
10188 &editor,
10189 workspace,
10190 project_transaction,
10191 format!("Rename: {} → {}", old_name, new_name),
10192 cx.clone(),
10193 )
10194 .await?;
10195
10196 editor.update(&mut cx, |editor, cx| {
10197 editor.refresh_document_highlights(cx);
10198 })?;
10199 Ok(())
10200 }))
10201 }
10202
10203 fn take_rename(
10204 &mut self,
10205 moving_cursor: bool,
10206 cx: &mut ViewContext<Self>,
10207 ) -> Option<RenameState> {
10208 let rename = self.pending_rename.take()?;
10209 if rename.editor.focus_handle(cx).is_focused(cx) {
10210 cx.focus(&self.focus_handle);
10211 }
10212
10213 self.remove_blocks(
10214 [rename.block_id].into_iter().collect(),
10215 Some(Autoscroll::fit()),
10216 cx,
10217 );
10218 self.clear_highlights::<Rename>(cx);
10219 self.show_local_selections = true;
10220
10221 if moving_cursor {
10222 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10223 editor.selections.newest::<usize>(cx).head()
10224 });
10225
10226 // Update the selection to match the position of the selection inside
10227 // the rename editor.
10228 let snapshot = self.buffer.read(cx).read(cx);
10229 let rename_range = rename.range.to_offset(&snapshot);
10230 let cursor_in_editor = snapshot
10231 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10232 .min(rename_range.end);
10233 drop(snapshot);
10234
10235 self.change_selections(None, cx, |s| {
10236 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10237 });
10238 } else {
10239 self.refresh_document_highlights(cx);
10240 }
10241
10242 Some(rename)
10243 }
10244
10245 pub fn pending_rename(&self) -> Option<&RenameState> {
10246 self.pending_rename.as_ref()
10247 }
10248
10249 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10250 let project = match &self.project {
10251 Some(project) => project.clone(),
10252 None => return None,
10253 };
10254
10255 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffers, cx))
10256 }
10257
10258 fn format_selections(
10259 &mut self,
10260 _: &FormatSelections,
10261 cx: &mut ViewContext<Self>,
10262 ) -> Option<Task<Result<()>>> {
10263 let project = match &self.project {
10264 Some(project) => project.clone(),
10265 None => return None,
10266 };
10267
10268 let ranges = self
10269 .selections
10270 .all_adjusted(cx)
10271 .into_iter()
10272 .map(|selection| selection.range())
10273 .collect_vec();
10274
10275 Some(self.perform_format(
10276 project,
10277 FormatTrigger::Manual,
10278 FormatTarget::Ranges(ranges),
10279 cx,
10280 ))
10281 }
10282
10283 fn perform_format(
10284 &mut self,
10285 project: Model<Project>,
10286 trigger: FormatTrigger,
10287 target: FormatTarget,
10288 cx: &mut ViewContext<Self>,
10289 ) -> Task<Result<()>> {
10290 let buffer = self.buffer.clone();
10291 let (buffers, target) = match target {
10292 FormatTarget::Buffers => {
10293 let mut buffers = buffer.read(cx).all_buffers();
10294 if trigger == FormatTrigger::Save {
10295 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10296 }
10297 (buffers, LspFormatTarget::Buffers)
10298 }
10299 FormatTarget::Ranges(selection_ranges) => {
10300 let multi_buffer = buffer.read(cx);
10301 let snapshot = multi_buffer.read(cx);
10302 let mut buffers = HashSet::default();
10303 let mut buffer_id_to_ranges: BTreeMap<BufferId, Vec<Range<text::Anchor>>> =
10304 BTreeMap::new();
10305 for selection_range in selection_ranges {
10306 for (excerpt, buffer_range) in snapshot.range_to_buffer_ranges(selection_range)
10307 {
10308 let buffer_id = excerpt.buffer_id();
10309 let start = excerpt.buffer().anchor_before(buffer_range.start);
10310 let end = excerpt.buffer().anchor_after(buffer_range.end);
10311 buffers.insert(multi_buffer.buffer(buffer_id).unwrap());
10312 buffer_id_to_ranges
10313 .entry(buffer_id)
10314 .and_modify(|buffer_ranges| buffer_ranges.push(start..end))
10315 .or_insert_with(|| vec![start..end]);
10316 }
10317 }
10318 (buffers, LspFormatTarget::Ranges(buffer_id_to_ranges))
10319 }
10320 };
10321
10322 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10323 let format = project.update(cx, |project, cx| {
10324 project.format(buffers, target, true, trigger, cx)
10325 });
10326
10327 cx.spawn(|_, mut cx| async move {
10328 let transaction = futures::select_biased! {
10329 () = timeout => {
10330 log::warn!("timed out waiting for formatting");
10331 None
10332 }
10333 transaction = format.log_err().fuse() => transaction,
10334 };
10335
10336 buffer
10337 .update(&mut cx, |buffer, cx| {
10338 if let Some(transaction) = transaction {
10339 if !buffer.is_singleton() {
10340 buffer.push_transaction(&transaction.0, cx);
10341 }
10342 }
10343
10344 cx.notify();
10345 })
10346 .ok();
10347
10348 Ok(())
10349 })
10350 }
10351
10352 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10353 if let Some(project) = self.project.clone() {
10354 self.buffer.update(cx, |multi_buffer, cx| {
10355 project.update(cx, |project, cx| {
10356 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10357 });
10358 })
10359 }
10360 }
10361
10362 fn cancel_language_server_work(
10363 &mut self,
10364 _: &actions::CancelLanguageServerWork,
10365 cx: &mut ViewContext<Self>,
10366 ) {
10367 if let Some(project) = self.project.clone() {
10368 self.buffer.update(cx, |multi_buffer, cx| {
10369 project.update(cx, |project, cx| {
10370 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10371 });
10372 })
10373 }
10374 }
10375
10376 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10377 cx.show_character_palette();
10378 }
10379
10380 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10381 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10382 let buffer = self.buffer.read(cx).snapshot(cx);
10383 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10384 let is_valid = buffer
10385 .diagnostics_in_range(active_diagnostics.primary_range.clone(), false)
10386 .any(|entry| {
10387 let range = entry.range.to_offset(&buffer);
10388 entry.diagnostic.is_primary
10389 && !range.is_empty()
10390 && range.start == primary_range_start
10391 && entry.diagnostic.message == active_diagnostics.primary_message
10392 });
10393
10394 if is_valid != active_diagnostics.is_valid {
10395 active_diagnostics.is_valid = is_valid;
10396 let mut new_styles = HashMap::default();
10397 for (block_id, diagnostic) in &active_diagnostics.blocks {
10398 new_styles.insert(
10399 *block_id,
10400 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10401 );
10402 }
10403 self.display_map.update(cx, |display_map, _cx| {
10404 display_map.replace_blocks(new_styles)
10405 });
10406 }
10407 }
10408 }
10409
10410 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) {
10411 self.dismiss_diagnostics(cx);
10412 let snapshot = self.snapshot(cx);
10413 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10414 let buffer = self.buffer.read(cx).snapshot(cx);
10415
10416 let mut primary_range = None;
10417 let mut primary_message = None;
10418 let mut group_end = Point::zero();
10419 let diagnostic_group = buffer
10420 .diagnostic_group(group_id)
10421 .filter_map(|entry| {
10422 let start = entry.range.start.to_point(&buffer);
10423 let end = entry.range.end.to_point(&buffer);
10424 if snapshot.is_line_folded(MultiBufferRow(start.row))
10425 && (start.row == end.row
10426 || snapshot.is_line_folded(MultiBufferRow(end.row)))
10427 {
10428 return None;
10429 }
10430 if end > group_end {
10431 group_end = end;
10432 }
10433 if entry.diagnostic.is_primary {
10434 primary_range = Some(entry.range.clone());
10435 primary_message = Some(entry.diagnostic.message.clone());
10436 }
10437 Some(entry)
10438 })
10439 .collect::<Vec<_>>();
10440 let primary_range = primary_range?;
10441 let primary_message = primary_message?;
10442
10443 let blocks = display_map
10444 .insert_blocks(
10445 diagnostic_group.iter().map(|entry| {
10446 let diagnostic = entry.diagnostic.clone();
10447 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10448 BlockProperties {
10449 style: BlockStyle::Fixed,
10450 placement: BlockPlacement::Below(
10451 buffer.anchor_after(entry.range.start),
10452 ),
10453 height: message_height,
10454 render: diagnostic_block_renderer(diagnostic, None, true, true),
10455 priority: 0,
10456 }
10457 }),
10458 cx,
10459 )
10460 .into_iter()
10461 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10462 .collect();
10463
10464 Some(ActiveDiagnosticGroup {
10465 primary_range,
10466 primary_message,
10467 group_id,
10468 blocks,
10469 is_valid: true,
10470 })
10471 });
10472 }
10473
10474 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10475 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10476 self.display_map.update(cx, |display_map, cx| {
10477 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10478 });
10479 cx.notify();
10480 }
10481 }
10482
10483 pub fn set_selections_from_remote(
10484 &mut self,
10485 selections: Vec<Selection<Anchor>>,
10486 pending_selection: Option<Selection<Anchor>>,
10487 cx: &mut ViewContext<Self>,
10488 ) {
10489 let old_cursor_position = self.selections.newest_anchor().head();
10490 self.selections.change_with(cx, |s| {
10491 s.select_anchors(selections);
10492 if let Some(pending_selection) = pending_selection {
10493 s.set_pending(pending_selection, SelectMode::Character);
10494 } else {
10495 s.clear_pending();
10496 }
10497 });
10498 self.selections_did_change(false, &old_cursor_position, true, cx);
10499 }
10500
10501 fn push_to_selection_history(&mut self) {
10502 self.selection_history.push(SelectionHistoryEntry {
10503 selections: self.selections.disjoint_anchors(),
10504 select_next_state: self.select_next_state.clone(),
10505 select_prev_state: self.select_prev_state.clone(),
10506 add_selections_state: self.add_selections_state.clone(),
10507 });
10508 }
10509
10510 pub fn transact(
10511 &mut self,
10512 cx: &mut ViewContext<Self>,
10513 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10514 ) -> Option<TransactionId> {
10515 self.start_transaction_at(Instant::now(), cx);
10516 update(self, cx);
10517 self.end_transaction_at(Instant::now(), cx)
10518 }
10519
10520 pub fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10521 self.end_selection(cx);
10522 if let Some(tx_id) = self
10523 .buffer
10524 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10525 {
10526 self.selection_history
10527 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10528 cx.emit(EditorEvent::TransactionBegun {
10529 transaction_id: tx_id,
10530 })
10531 }
10532 }
10533
10534 pub fn end_transaction_at(
10535 &mut self,
10536 now: Instant,
10537 cx: &mut ViewContext<Self>,
10538 ) -> Option<TransactionId> {
10539 if let Some(transaction_id) = self
10540 .buffer
10541 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10542 {
10543 if let Some((_, end_selections)) =
10544 self.selection_history.transaction_mut(transaction_id)
10545 {
10546 *end_selections = Some(self.selections.disjoint_anchors());
10547 } else {
10548 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10549 }
10550
10551 cx.emit(EditorEvent::Edited { transaction_id });
10552 Some(transaction_id)
10553 } else {
10554 None
10555 }
10556 }
10557
10558 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10559 if self.is_singleton(cx) {
10560 let selection = self.selections.newest::<Point>(cx);
10561
10562 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10563 let range = if selection.is_empty() {
10564 let point = selection.head().to_display_point(&display_map);
10565 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10566 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10567 .to_point(&display_map);
10568 start..end
10569 } else {
10570 selection.range()
10571 };
10572 if display_map.folds_in_range(range).next().is_some() {
10573 self.unfold_lines(&Default::default(), cx)
10574 } else {
10575 self.fold(&Default::default(), cx)
10576 }
10577 } else {
10578 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10579 let mut toggled_buffers = HashSet::default();
10580 for (_, buffer_snapshot, _) in
10581 multi_buffer_snapshot.excerpts_in_ranges(self.selections.disjoint_anchor_ranges())
10582 {
10583 let buffer_id = buffer_snapshot.remote_id();
10584 if toggled_buffers.insert(buffer_id) {
10585 if self.buffer_folded(buffer_id, cx) {
10586 self.unfold_buffer(buffer_id, cx);
10587 } else {
10588 self.fold_buffer(buffer_id, cx);
10589 }
10590 }
10591 }
10592 }
10593 }
10594
10595 pub fn toggle_fold_recursive(
10596 &mut self,
10597 _: &actions::ToggleFoldRecursive,
10598 cx: &mut ViewContext<Self>,
10599 ) {
10600 let selection = self.selections.newest::<Point>(cx);
10601
10602 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10603 let range = if selection.is_empty() {
10604 let point = selection.head().to_display_point(&display_map);
10605 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10606 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10607 .to_point(&display_map);
10608 start..end
10609 } else {
10610 selection.range()
10611 };
10612 if display_map.folds_in_range(range).next().is_some() {
10613 self.unfold_recursive(&Default::default(), cx)
10614 } else {
10615 self.fold_recursive(&Default::default(), cx)
10616 }
10617 }
10618
10619 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10620 if self.is_singleton(cx) {
10621 let mut to_fold = Vec::new();
10622 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10623 let selections = self.selections.all_adjusted(cx);
10624
10625 for selection in selections {
10626 let range = selection.range().sorted();
10627 let buffer_start_row = range.start.row;
10628
10629 if range.start.row != range.end.row {
10630 let mut found = false;
10631 let mut row = range.start.row;
10632 while row <= range.end.row {
10633 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row))
10634 {
10635 found = true;
10636 row = crease.range().end.row + 1;
10637 to_fold.push(crease);
10638 } else {
10639 row += 1
10640 }
10641 }
10642 if found {
10643 continue;
10644 }
10645 }
10646
10647 for row in (0..=range.start.row).rev() {
10648 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10649 if crease.range().end.row >= buffer_start_row {
10650 to_fold.push(crease);
10651 if row <= range.start.row {
10652 break;
10653 }
10654 }
10655 }
10656 }
10657 }
10658
10659 self.fold_creases(to_fold, true, cx);
10660 } else {
10661 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10662 let mut folded_buffers = HashSet::default();
10663 for (_, buffer_snapshot, _) in
10664 multi_buffer_snapshot.excerpts_in_ranges(self.selections.disjoint_anchor_ranges())
10665 {
10666 let buffer_id = buffer_snapshot.remote_id();
10667 if folded_buffers.insert(buffer_id) {
10668 self.fold_buffer(buffer_id, cx);
10669 }
10670 }
10671 }
10672 }
10673
10674 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10675 if !self.buffer.read(cx).is_singleton() {
10676 return;
10677 }
10678
10679 let fold_at_level = fold_at.level;
10680 let snapshot = self.buffer.read(cx).snapshot(cx);
10681 let mut to_fold = Vec::new();
10682 let mut stack = vec![(0, snapshot.max_row().0, 1)];
10683
10684 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10685 while start_row < end_row {
10686 match self
10687 .snapshot(cx)
10688 .crease_for_buffer_row(MultiBufferRow(start_row))
10689 {
10690 Some(crease) => {
10691 let nested_start_row = crease.range().start.row + 1;
10692 let nested_end_row = crease.range().end.row;
10693
10694 if current_level < fold_at_level {
10695 stack.push((nested_start_row, nested_end_row, current_level + 1));
10696 } else if current_level == fold_at_level {
10697 to_fold.push(crease);
10698 }
10699
10700 start_row = nested_end_row + 1;
10701 }
10702 None => start_row += 1,
10703 }
10704 }
10705 }
10706
10707 self.fold_creases(to_fold, true, cx);
10708 }
10709
10710 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10711 if self.buffer.read(cx).is_singleton() {
10712 let mut fold_ranges = Vec::new();
10713 let snapshot = self.buffer.read(cx).snapshot(cx);
10714
10715 for row in 0..snapshot.max_row().0 {
10716 if let Some(foldable_range) =
10717 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
10718 {
10719 fold_ranges.push(foldable_range);
10720 }
10721 }
10722
10723 self.fold_creases(fold_ranges, true, cx);
10724 } else {
10725 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10726 editor
10727 .update(&mut cx, |editor, cx| {
10728 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10729 editor.fold_buffer(buffer_id, cx);
10730 }
10731 })
10732 .ok();
10733 });
10734 }
10735 }
10736
10737 pub fn fold_function_bodies(
10738 &mut self,
10739 _: &actions::FoldFunctionBodies,
10740 cx: &mut ViewContext<Self>,
10741 ) {
10742 let snapshot = self.buffer.read(cx).snapshot(cx);
10743 let Some((_, _, buffer)) = snapshot.as_singleton() else {
10744 return;
10745 };
10746 let creases = buffer
10747 .function_body_fold_ranges(0..buffer.len())
10748 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
10749 .collect();
10750
10751 self.fold_creases(creases, true, cx);
10752 }
10753
10754 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10755 let mut to_fold = Vec::new();
10756 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10757 let selections = self.selections.all_adjusted(cx);
10758
10759 for selection in selections {
10760 let range = selection.range().sorted();
10761 let buffer_start_row = range.start.row;
10762
10763 if range.start.row != range.end.row {
10764 let mut found = false;
10765 for row in range.start.row..=range.end.row {
10766 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10767 found = true;
10768 to_fold.push(crease);
10769 }
10770 }
10771 if found {
10772 continue;
10773 }
10774 }
10775
10776 for row in (0..=range.start.row).rev() {
10777 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10778 if crease.range().end.row >= buffer_start_row {
10779 to_fold.push(crease);
10780 } else {
10781 break;
10782 }
10783 }
10784 }
10785 }
10786
10787 self.fold_creases(to_fold, true, cx);
10788 }
10789
10790 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10791 let buffer_row = fold_at.buffer_row;
10792 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10793
10794 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
10795 let autoscroll = self
10796 .selections
10797 .all::<Point>(cx)
10798 .iter()
10799 .any(|selection| crease.range().overlaps(&selection.range()));
10800
10801 self.fold_creases(vec![crease], autoscroll, cx);
10802 }
10803 }
10804
10805 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10806 if self.is_singleton(cx) {
10807 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10808 let buffer = &display_map.buffer_snapshot;
10809 let selections = self.selections.all::<Point>(cx);
10810 let ranges = selections
10811 .iter()
10812 .map(|s| {
10813 let range = s.display_range(&display_map).sorted();
10814 let mut start = range.start.to_point(&display_map);
10815 let mut end = range.end.to_point(&display_map);
10816 start.column = 0;
10817 end.column = buffer.line_len(MultiBufferRow(end.row));
10818 start..end
10819 })
10820 .collect::<Vec<_>>();
10821
10822 self.unfold_ranges(&ranges, true, true, cx);
10823 } else {
10824 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10825 let mut unfolded_buffers = HashSet::default();
10826 for (_, buffer_snapshot, _) in
10827 multi_buffer_snapshot.excerpts_in_ranges(self.selections.disjoint_anchor_ranges())
10828 {
10829 let buffer_id = buffer_snapshot.remote_id();
10830 if unfolded_buffers.insert(buffer_id) {
10831 self.unfold_buffer(buffer_id, cx);
10832 }
10833 }
10834 }
10835 }
10836
10837 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10838 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10839 let selections = self.selections.all::<Point>(cx);
10840 let ranges = selections
10841 .iter()
10842 .map(|s| {
10843 let mut range = s.display_range(&display_map).sorted();
10844 *range.start.column_mut() = 0;
10845 *range.end.column_mut() = display_map.line_len(range.end.row());
10846 let start = range.start.to_point(&display_map);
10847 let end = range.end.to_point(&display_map);
10848 start..end
10849 })
10850 .collect::<Vec<_>>();
10851
10852 self.unfold_ranges(&ranges, true, true, cx);
10853 }
10854
10855 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10856 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10857
10858 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10859 ..Point::new(
10860 unfold_at.buffer_row.0,
10861 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10862 );
10863
10864 let autoscroll = self
10865 .selections
10866 .all::<Point>(cx)
10867 .iter()
10868 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10869
10870 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
10871 }
10872
10873 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10874 if self.buffer.read(cx).is_singleton() {
10875 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10876 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
10877 } else {
10878 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10879 editor
10880 .update(&mut cx, |editor, cx| {
10881 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10882 editor.unfold_buffer(buffer_id, cx);
10883 }
10884 })
10885 .ok();
10886 });
10887 }
10888 }
10889
10890 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10891 let selections = self.selections.all::<Point>(cx);
10892 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10893 let line_mode = self.selections.line_mode;
10894 let ranges = selections
10895 .into_iter()
10896 .map(|s| {
10897 if line_mode {
10898 let start = Point::new(s.start.row, 0);
10899 let end = Point::new(
10900 s.end.row,
10901 display_map
10902 .buffer_snapshot
10903 .line_len(MultiBufferRow(s.end.row)),
10904 );
10905 Crease::simple(start..end, display_map.fold_placeholder.clone())
10906 } else {
10907 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
10908 }
10909 })
10910 .collect::<Vec<_>>();
10911 self.fold_creases(ranges, true, cx);
10912 }
10913
10914 pub fn fold_ranges<T: ToOffset + Clone>(
10915 &mut self,
10916 ranges: Vec<Range<T>>,
10917 auto_scroll: bool,
10918 cx: &mut ViewContext<Self>,
10919 ) {
10920 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10921 let ranges = ranges
10922 .into_iter()
10923 .map(|r| Crease::simple(r, display_map.fold_placeholder.clone()))
10924 .collect::<Vec<_>>();
10925 self.fold_creases(ranges, auto_scroll, cx);
10926 }
10927
10928 pub fn fold_creases<T: ToOffset + Clone>(
10929 &mut self,
10930 creases: Vec<Crease<T>>,
10931 auto_scroll: bool,
10932 cx: &mut ViewContext<Self>,
10933 ) {
10934 if creases.is_empty() {
10935 return;
10936 }
10937
10938 let mut buffers_affected = HashSet::default();
10939 let multi_buffer = self.buffer().read(cx);
10940 for crease in &creases {
10941 if let Some((_, buffer, _)) =
10942 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
10943 {
10944 buffers_affected.insert(buffer.read(cx).remote_id());
10945 };
10946 }
10947
10948 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
10949
10950 if auto_scroll {
10951 self.request_autoscroll(Autoscroll::fit(), cx);
10952 }
10953
10954 for buffer_id in buffers_affected {
10955 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10956 }
10957
10958 cx.notify();
10959
10960 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10961 // Clear diagnostics block when folding a range that contains it.
10962 let snapshot = self.snapshot(cx);
10963 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10964 drop(snapshot);
10965 self.active_diagnostics = Some(active_diagnostics);
10966 self.dismiss_diagnostics(cx);
10967 } else {
10968 self.active_diagnostics = Some(active_diagnostics);
10969 }
10970 }
10971
10972 self.scrollbar_marker_state.dirty = true;
10973 }
10974
10975 /// Removes any folds whose ranges intersect any of the given ranges.
10976 pub fn unfold_ranges<T: ToOffset + Clone>(
10977 &mut self,
10978 ranges: &[Range<T>],
10979 inclusive: bool,
10980 auto_scroll: bool,
10981 cx: &mut ViewContext<Self>,
10982 ) {
10983 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10984 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
10985 });
10986 }
10987
10988 pub fn fold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10989 if self.buffer().read(cx).is_singleton() || self.buffer_folded(buffer_id, cx) {
10990 return;
10991 }
10992 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10993 return;
10994 };
10995 let folded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10996 self.display_map
10997 .update(cx, |display_map, cx| display_map.fold_buffer(buffer_id, cx));
10998 cx.emit(EditorEvent::BufferFoldToggled {
10999 ids: folded_excerpts.iter().map(|&(id, _)| id).collect(),
11000 folded: true,
11001 });
11002 cx.notify();
11003 }
11004
11005 pub fn unfold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
11006 if self.buffer().read(cx).is_singleton() || !self.buffer_folded(buffer_id, cx) {
11007 return;
11008 }
11009 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
11010 return;
11011 };
11012 let unfolded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
11013 self.display_map.update(cx, |display_map, cx| {
11014 display_map.unfold_buffer(buffer_id, cx);
11015 });
11016 cx.emit(EditorEvent::BufferFoldToggled {
11017 ids: unfolded_excerpts.iter().map(|&(id, _)| id).collect(),
11018 folded: false,
11019 });
11020 cx.notify();
11021 }
11022
11023 pub fn buffer_folded(&self, buffer: BufferId, cx: &AppContext) -> bool {
11024 self.display_map.read(cx).buffer_folded(buffer)
11025 }
11026
11027 /// Removes any folds with the given ranges.
11028 pub fn remove_folds_with_type<T: ToOffset + Clone>(
11029 &mut self,
11030 ranges: &[Range<T>],
11031 type_id: TypeId,
11032 auto_scroll: bool,
11033 cx: &mut ViewContext<Self>,
11034 ) {
11035 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11036 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
11037 });
11038 }
11039
11040 fn remove_folds_with<T: ToOffset + Clone>(
11041 &mut self,
11042 ranges: &[Range<T>],
11043 auto_scroll: bool,
11044 cx: &mut ViewContext<Self>,
11045 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
11046 ) {
11047 if ranges.is_empty() {
11048 return;
11049 }
11050
11051 let mut buffers_affected = HashSet::default();
11052 let multi_buffer = self.buffer().read(cx);
11053 for range in ranges {
11054 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11055 buffers_affected.insert(buffer.read(cx).remote_id());
11056 };
11057 }
11058
11059 self.display_map.update(cx, update);
11060
11061 if auto_scroll {
11062 self.request_autoscroll(Autoscroll::fit(), cx);
11063 }
11064
11065 for buffer_id in buffers_affected {
11066 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
11067 }
11068
11069 cx.notify();
11070 self.scrollbar_marker_state.dirty = true;
11071 self.active_indent_guides_state.dirty = true;
11072 }
11073
11074 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11075 self.display_map.read(cx).fold_placeholder.clone()
11076 }
11077
11078 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11079 if hovered != self.gutter_hovered {
11080 self.gutter_hovered = hovered;
11081 cx.notify();
11082 }
11083 }
11084
11085 pub fn insert_blocks(
11086 &mut self,
11087 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11088 autoscroll: Option<Autoscroll>,
11089 cx: &mut ViewContext<Self>,
11090 ) -> Vec<CustomBlockId> {
11091 let blocks = self
11092 .display_map
11093 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11094 if let Some(autoscroll) = autoscroll {
11095 self.request_autoscroll(autoscroll, cx);
11096 }
11097 cx.notify();
11098 blocks
11099 }
11100
11101 pub fn resize_blocks(
11102 &mut self,
11103 heights: HashMap<CustomBlockId, u32>,
11104 autoscroll: Option<Autoscroll>,
11105 cx: &mut ViewContext<Self>,
11106 ) {
11107 self.display_map
11108 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11109 if let Some(autoscroll) = autoscroll {
11110 self.request_autoscroll(autoscroll, cx);
11111 }
11112 cx.notify();
11113 }
11114
11115 pub fn replace_blocks(
11116 &mut self,
11117 renderers: HashMap<CustomBlockId, RenderBlock>,
11118 autoscroll: Option<Autoscroll>,
11119 cx: &mut ViewContext<Self>,
11120 ) {
11121 self.display_map
11122 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11123 if let Some(autoscroll) = autoscroll {
11124 self.request_autoscroll(autoscroll, cx);
11125 }
11126 cx.notify();
11127 }
11128
11129 pub fn remove_blocks(
11130 &mut self,
11131 block_ids: HashSet<CustomBlockId>,
11132 autoscroll: Option<Autoscroll>,
11133 cx: &mut ViewContext<Self>,
11134 ) {
11135 self.display_map.update(cx, |display_map, cx| {
11136 display_map.remove_blocks(block_ids, cx)
11137 });
11138 if let Some(autoscroll) = autoscroll {
11139 self.request_autoscroll(autoscroll, cx);
11140 }
11141 cx.notify();
11142 }
11143
11144 pub fn row_for_block(
11145 &self,
11146 block_id: CustomBlockId,
11147 cx: &mut ViewContext<Self>,
11148 ) -> Option<DisplayRow> {
11149 self.display_map
11150 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11151 }
11152
11153 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11154 self.focused_block = Some(focused_block);
11155 }
11156
11157 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11158 self.focused_block.take()
11159 }
11160
11161 pub fn insert_creases(
11162 &mut self,
11163 creases: impl IntoIterator<Item = Crease<Anchor>>,
11164 cx: &mut ViewContext<Self>,
11165 ) -> Vec<CreaseId> {
11166 self.display_map
11167 .update(cx, |map, cx| map.insert_creases(creases, cx))
11168 }
11169
11170 pub fn remove_creases(
11171 &mut self,
11172 ids: impl IntoIterator<Item = CreaseId>,
11173 cx: &mut ViewContext<Self>,
11174 ) {
11175 self.display_map
11176 .update(cx, |map, cx| map.remove_creases(ids, cx));
11177 }
11178
11179 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11180 self.display_map
11181 .update(cx, |map, cx| map.snapshot(cx))
11182 .longest_row()
11183 }
11184
11185 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11186 self.display_map
11187 .update(cx, |map, cx| map.snapshot(cx))
11188 .max_point()
11189 }
11190
11191 pub fn text(&self, cx: &AppContext) -> String {
11192 self.buffer.read(cx).read(cx).text()
11193 }
11194
11195 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11196 let text = self.text(cx);
11197 let text = text.trim();
11198
11199 if text.is_empty() {
11200 return None;
11201 }
11202
11203 Some(text.to_string())
11204 }
11205
11206 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11207 self.transact(cx, |this, cx| {
11208 this.buffer
11209 .read(cx)
11210 .as_singleton()
11211 .expect("you can only call set_text on editors for singleton buffers")
11212 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11213 });
11214 }
11215
11216 pub fn display_text(&self, cx: &mut AppContext) -> String {
11217 self.display_map
11218 .update(cx, |map, cx| map.snapshot(cx))
11219 .text()
11220 }
11221
11222 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11223 let mut wrap_guides = smallvec::smallvec![];
11224
11225 if self.show_wrap_guides == Some(false) {
11226 return wrap_guides;
11227 }
11228
11229 let settings = self.buffer.read(cx).settings_at(0, cx);
11230 if settings.show_wrap_guides {
11231 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11232 wrap_guides.push((soft_wrap as usize, true));
11233 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11234 wrap_guides.push((soft_wrap as usize, true));
11235 }
11236 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11237 }
11238
11239 wrap_guides
11240 }
11241
11242 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11243 let settings = self.buffer.read(cx).settings_at(0, cx);
11244 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11245 match mode {
11246 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11247 SoftWrap::None
11248 }
11249 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11250 language_settings::SoftWrap::PreferredLineLength => {
11251 SoftWrap::Column(settings.preferred_line_length)
11252 }
11253 language_settings::SoftWrap::Bounded => {
11254 SoftWrap::Bounded(settings.preferred_line_length)
11255 }
11256 }
11257 }
11258
11259 pub fn set_soft_wrap_mode(
11260 &mut self,
11261 mode: language_settings::SoftWrap,
11262 cx: &mut ViewContext<Self>,
11263 ) {
11264 self.soft_wrap_mode_override = Some(mode);
11265 cx.notify();
11266 }
11267
11268 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11269 self.text_style_refinement = Some(style);
11270 }
11271
11272 /// called by the Element so we know what style we were most recently rendered with.
11273 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11274 let rem_size = cx.rem_size();
11275 self.display_map.update(cx, |map, cx| {
11276 map.set_font(
11277 style.text.font(),
11278 style.text.font_size.to_pixels(rem_size),
11279 cx,
11280 )
11281 });
11282 self.style = Some(style);
11283 }
11284
11285 pub fn style(&self) -> Option<&EditorStyle> {
11286 self.style.as_ref()
11287 }
11288
11289 // Called by the element. This method is not designed to be called outside of the editor
11290 // element's layout code because it does not notify when rewrapping is computed synchronously.
11291 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11292 self.display_map
11293 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11294 }
11295
11296 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11297 if self.soft_wrap_mode_override.is_some() {
11298 self.soft_wrap_mode_override.take();
11299 } else {
11300 let soft_wrap = match self.soft_wrap_mode(cx) {
11301 SoftWrap::GitDiff => return,
11302 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11303 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11304 language_settings::SoftWrap::None
11305 }
11306 };
11307 self.soft_wrap_mode_override = Some(soft_wrap);
11308 }
11309 cx.notify();
11310 }
11311
11312 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11313 let Some(workspace) = self.workspace() else {
11314 return;
11315 };
11316 let fs = workspace.read(cx).app_state().fs.clone();
11317 let current_show = TabBarSettings::get_global(cx).show;
11318 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11319 setting.show = Some(!current_show);
11320 });
11321 }
11322
11323 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11324 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11325 self.buffer
11326 .read(cx)
11327 .settings_at(0, cx)
11328 .indent_guides
11329 .enabled
11330 });
11331 self.show_indent_guides = Some(!currently_enabled);
11332 cx.notify();
11333 }
11334
11335 fn should_show_indent_guides(&self) -> Option<bool> {
11336 self.show_indent_guides
11337 }
11338
11339 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11340 let mut editor_settings = EditorSettings::get_global(cx).clone();
11341 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11342 EditorSettings::override_global(editor_settings, cx);
11343 }
11344
11345 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11346 self.use_relative_line_numbers
11347 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11348 }
11349
11350 pub fn toggle_relative_line_numbers(
11351 &mut self,
11352 _: &ToggleRelativeLineNumbers,
11353 cx: &mut ViewContext<Self>,
11354 ) {
11355 let is_relative = self.should_use_relative_line_numbers(cx);
11356 self.set_relative_line_number(Some(!is_relative), cx)
11357 }
11358
11359 pub fn set_relative_line_number(
11360 &mut self,
11361 is_relative: Option<bool>,
11362 cx: &mut ViewContext<Self>,
11363 ) {
11364 self.use_relative_line_numbers = is_relative;
11365 cx.notify();
11366 }
11367
11368 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11369 self.show_gutter = show_gutter;
11370 cx.notify();
11371 }
11372
11373 pub fn set_show_scrollbars(&mut self, show_scrollbars: bool, cx: &mut ViewContext<Self>) {
11374 self.show_scrollbars = show_scrollbars;
11375 cx.notify();
11376 }
11377
11378 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11379 self.show_line_numbers = Some(show_line_numbers);
11380 cx.notify();
11381 }
11382
11383 pub fn set_show_git_diff_gutter(
11384 &mut self,
11385 show_git_diff_gutter: bool,
11386 cx: &mut ViewContext<Self>,
11387 ) {
11388 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11389 cx.notify();
11390 }
11391
11392 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11393 self.show_code_actions = Some(show_code_actions);
11394 cx.notify();
11395 }
11396
11397 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11398 self.show_runnables = Some(show_runnables);
11399 cx.notify();
11400 }
11401
11402 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11403 if self.display_map.read(cx).masked != masked {
11404 self.display_map.update(cx, |map, _| map.masked = masked);
11405 }
11406 cx.notify()
11407 }
11408
11409 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11410 self.show_wrap_guides = Some(show_wrap_guides);
11411 cx.notify();
11412 }
11413
11414 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11415 self.show_indent_guides = Some(show_indent_guides);
11416 cx.notify();
11417 }
11418
11419 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11420 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11421 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11422 if let Some(dir) = file.abs_path(cx).parent() {
11423 return Some(dir.to_owned());
11424 }
11425 }
11426
11427 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11428 return Some(project_path.path.to_path_buf());
11429 }
11430 }
11431
11432 None
11433 }
11434
11435 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11436 self.active_excerpt(cx)?
11437 .1
11438 .read(cx)
11439 .file()
11440 .and_then(|f| f.as_local())
11441 }
11442
11443 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11444 if let Some(target) = self.target_file(cx) {
11445 cx.reveal_path(&target.abs_path(cx));
11446 }
11447 }
11448
11449 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11450 if let Some(file) = self.target_file(cx) {
11451 if let Some(path) = file.abs_path(cx).to_str() {
11452 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11453 }
11454 }
11455 }
11456
11457 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11458 if let Some(file) = self.target_file(cx) {
11459 if let Some(path) = file.path().to_str() {
11460 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11461 }
11462 }
11463 }
11464
11465 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11466 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11467
11468 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11469 self.start_git_blame(true, cx);
11470 }
11471
11472 cx.notify();
11473 }
11474
11475 pub fn toggle_git_blame_inline(
11476 &mut self,
11477 _: &ToggleGitBlameInline,
11478 cx: &mut ViewContext<Self>,
11479 ) {
11480 self.toggle_git_blame_inline_internal(true, cx);
11481 cx.notify();
11482 }
11483
11484 pub fn git_blame_inline_enabled(&self) -> bool {
11485 self.git_blame_inline_enabled
11486 }
11487
11488 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11489 self.show_selection_menu = self
11490 .show_selection_menu
11491 .map(|show_selections_menu| !show_selections_menu)
11492 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11493
11494 cx.notify();
11495 }
11496
11497 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11498 self.show_selection_menu
11499 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11500 }
11501
11502 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11503 if let Some(project) = self.project.as_ref() {
11504 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11505 return;
11506 };
11507
11508 if buffer.read(cx).file().is_none() {
11509 return;
11510 }
11511
11512 let focused = self.focus_handle(cx).contains_focused(cx);
11513
11514 let project = project.clone();
11515 let blame =
11516 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11517 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11518 self.blame = Some(blame);
11519 }
11520 }
11521
11522 fn toggle_git_blame_inline_internal(
11523 &mut self,
11524 user_triggered: bool,
11525 cx: &mut ViewContext<Self>,
11526 ) {
11527 if self.git_blame_inline_enabled {
11528 self.git_blame_inline_enabled = false;
11529 self.show_git_blame_inline = false;
11530 self.show_git_blame_inline_delay_task.take();
11531 } else {
11532 self.git_blame_inline_enabled = true;
11533 self.start_git_blame_inline(user_triggered, cx);
11534 }
11535
11536 cx.notify();
11537 }
11538
11539 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11540 self.start_git_blame(user_triggered, cx);
11541
11542 if ProjectSettings::get_global(cx)
11543 .git
11544 .inline_blame_delay()
11545 .is_some()
11546 {
11547 self.start_inline_blame_timer(cx);
11548 } else {
11549 self.show_git_blame_inline = true
11550 }
11551 }
11552
11553 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11554 self.blame.as_ref()
11555 }
11556
11557 pub fn show_git_blame_gutter(&self) -> bool {
11558 self.show_git_blame_gutter
11559 }
11560
11561 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11562 self.show_git_blame_gutter && self.has_blame_entries(cx)
11563 }
11564
11565 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11566 self.show_git_blame_inline
11567 && self.focus_handle.is_focused(cx)
11568 && !self.newest_selection_head_on_empty_line(cx)
11569 && self.has_blame_entries(cx)
11570 }
11571
11572 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11573 self.blame()
11574 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11575 }
11576
11577 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11578 let cursor_anchor = self.selections.newest_anchor().head();
11579
11580 let snapshot = self.buffer.read(cx).snapshot(cx);
11581 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11582
11583 snapshot.line_len(buffer_row) == 0
11584 }
11585
11586 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11587 let buffer_and_selection = maybe!({
11588 let selection = self.selections.newest::<Point>(cx);
11589 let selection_range = selection.range();
11590
11591 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11592 (buffer, selection_range.start.row..selection_range.end.row)
11593 } else {
11594 let multi_buffer = self.buffer().read(cx);
11595 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
11596 let buffer_ranges = multi_buffer_snapshot.range_to_buffer_ranges(selection_range);
11597
11598 let (excerpt, range) = if selection.reversed {
11599 buffer_ranges.first()
11600 } else {
11601 buffer_ranges.last()
11602 }?;
11603
11604 let snapshot = excerpt.buffer();
11605 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11606 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11607 (
11608 multi_buffer.buffer(excerpt.buffer_id()).unwrap().clone(),
11609 selection,
11610 )
11611 };
11612
11613 Some((buffer, selection))
11614 });
11615
11616 let Some((buffer, selection)) = buffer_and_selection else {
11617 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11618 };
11619
11620 let Some(project) = self.project.as_ref() else {
11621 return Task::ready(Err(anyhow!("editor does not have project")));
11622 };
11623
11624 project.update(cx, |project, cx| {
11625 project.get_permalink_to_line(&buffer, selection, cx)
11626 })
11627 }
11628
11629 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11630 let permalink_task = self.get_permalink_to_line(cx);
11631 let workspace = self.workspace();
11632
11633 cx.spawn(|_, mut cx| async move {
11634 match permalink_task.await {
11635 Ok(permalink) => {
11636 cx.update(|cx| {
11637 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11638 })
11639 .ok();
11640 }
11641 Err(err) => {
11642 let message = format!("Failed to copy permalink: {err}");
11643
11644 Err::<(), anyhow::Error>(err).log_err();
11645
11646 if let Some(workspace) = workspace {
11647 workspace
11648 .update(&mut cx, |workspace, cx| {
11649 struct CopyPermalinkToLine;
11650
11651 workspace.show_toast(
11652 Toast::new(
11653 NotificationId::unique::<CopyPermalinkToLine>(),
11654 message,
11655 ),
11656 cx,
11657 )
11658 })
11659 .ok();
11660 }
11661 }
11662 }
11663 })
11664 .detach();
11665 }
11666
11667 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11668 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11669 if let Some(file) = self.target_file(cx) {
11670 if let Some(path) = file.path().to_str() {
11671 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11672 }
11673 }
11674 }
11675
11676 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11677 let permalink_task = self.get_permalink_to_line(cx);
11678 let workspace = self.workspace();
11679
11680 cx.spawn(|_, mut cx| async move {
11681 match permalink_task.await {
11682 Ok(permalink) => {
11683 cx.update(|cx| {
11684 cx.open_url(permalink.as_ref());
11685 })
11686 .ok();
11687 }
11688 Err(err) => {
11689 let message = format!("Failed to open permalink: {err}");
11690
11691 Err::<(), anyhow::Error>(err).log_err();
11692
11693 if let Some(workspace) = workspace {
11694 workspace
11695 .update(&mut cx, |workspace, cx| {
11696 struct OpenPermalinkToLine;
11697
11698 workspace.show_toast(
11699 Toast::new(
11700 NotificationId::unique::<OpenPermalinkToLine>(),
11701 message,
11702 ),
11703 cx,
11704 )
11705 })
11706 .ok();
11707 }
11708 }
11709 }
11710 })
11711 .detach();
11712 }
11713
11714 pub fn insert_uuid_v4(&mut self, _: &InsertUuidV4, cx: &mut ViewContext<Self>) {
11715 self.insert_uuid(UuidVersion::V4, cx);
11716 }
11717
11718 pub fn insert_uuid_v7(&mut self, _: &InsertUuidV7, cx: &mut ViewContext<Self>) {
11719 self.insert_uuid(UuidVersion::V7, cx);
11720 }
11721
11722 fn insert_uuid(&mut self, version: UuidVersion, cx: &mut ViewContext<Self>) {
11723 self.transact(cx, |this, cx| {
11724 let edits = this
11725 .selections
11726 .all::<Point>(cx)
11727 .into_iter()
11728 .map(|selection| {
11729 let uuid = match version {
11730 UuidVersion::V4 => uuid::Uuid::new_v4(),
11731 UuidVersion::V7 => uuid::Uuid::now_v7(),
11732 };
11733
11734 (selection.range(), uuid.to_string())
11735 });
11736 this.edit(edits, cx);
11737 this.refresh_inline_completion(true, false, cx);
11738 });
11739 }
11740
11741 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11742 /// last highlight added will be used.
11743 ///
11744 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11745 pub fn highlight_rows<T: 'static>(
11746 &mut self,
11747 range: Range<Anchor>,
11748 color: Hsla,
11749 should_autoscroll: bool,
11750 cx: &mut ViewContext<Self>,
11751 ) {
11752 let snapshot = self.buffer().read(cx).snapshot(cx);
11753 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11754 let ix = row_highlights.binary_search_by(|highlight| {
11755 Ordering::Equal
11756 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11757 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11758 });
11759
11760 if let Err(mut ix) = ix {
11761 let index = post_inc(&mut self.highlight_order);
11762
11763 // If this range intersects with the preceding highlight, then merge it with
11764 // the preceding highlight. Otherwise insert a new highlight.
11765 let mut merged = false;
11766 if ix > 0 {
11767 let prev_highlight = &mut row_highlights[ix - 1];
11768 if prev_highlight
11769 .range
11770 .end
11771 .cmp(&range.start, &snapshot)
11772 .is_ge()
11773 {
11774 ix -= 1;
11775 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11776 prev_highlight.range.end = range.end;
11777 }
11778 merged = true;
11779 prev_highlight.index = index;
11780 prev_highlight.color = color;
11781 prev_highlight.should_autoscroll = should_autoscroll;
11782 }
11783 }
11784
11785 if !merged {
11786 row_highlights.insert(
11787 ix,
11788 RowHighlight {
11789 range: range.clone(),
11790 index,
11791 color,
11792 should_autoscroll,
11793 },
11794 );
11795 }
11796
11797 // If any of the following highlights intersect with this one, merge them.
11798 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11799 let highlight = &row_highlights[ix];
11800 if next_highlight
11801 .range
11802 .start
11803 .cmp(&highlight.range.end, &snapshot)
11804 .is_le()
11805 {
11806 if next_highlight
11807 .range
11808 .end
11809 .cmp(&highlight.range.end, &snapshot)
11810 .is_gt()
11811 {
11812 row_highlights[ix].range.end = next_highlight.range.end;
11813 }
11814 row_highlights.remove(ix + 1);
11815 } else {
11816 break;
11817 }
11818 }
11819 }
11820 }
11821
11822 /// Remove any highlighted row ranges of the given type that intersect the
11823 /// given ranges.
11824 pub fn remove_highlighted_rows<T: 'static>(
11825 &mut self,
11826 ranges_to_remove: Vec<Range<Anchor>>,
11827 cx: &mut ViewContext<Self>,
11828 ) {
11829 let snapshot = self.buffer().read(cx).snapshot(cx);
11830 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11831 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11832 row_highlights.retain(|highlight| {
11833 while let Some(range_to_remove) = ranges_to_remove.peek() {
11834 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11835 Ordering::Less | Ordering::Equal => {
11836 ranges_to_remove.next();
11837 }
11838 Ordering::Greater => {
11839 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11840 Ordering::Less | Ordering::Equal => {
11841 return false;
11842 }
11843 Ordering::Greater => break,
11844 }
11845 }
11846 }
11847 }
11848
11849 true
11850 })
11851 }
11852
11853 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11854 pub fn clear_row_highlights<T: 'static>(&mut self) {
11855 self.highlighted_rows.remove(&TypeId::of::<T>());
11856 }
11857
11858 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11859 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11860 self.highlighted_rows
11861 .get(&TypeId::of::<T>())
11862 .map_or(&[] as &[_], |vec| vec.as_slice())
11863 .iter()
11864 .map(|highlight| (highlight.range.clone(), highlight.color))
11865 }
11866
11867 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11868 /// Returns a map of display rows that are highlighted and their corresponding highlight color.
11869 /// Allows to ignore certain kinds of highlights.
11870 pub fn highlighted_display_rows(
11871 &mut self,
11872 cx: &mut WindowContext,
11873 ) -> BTreeMap<DisplayRow, Hsla> {
11874 let snapshot = self.snapshot(cx);
11875 let mut used_highlight_orders = HashMap::default();
11876 self.highlighted_rows
11877 .iter()
11878 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11879 .fold(
11880 BTreeMap::<DisplayRow, Hsla>::new(),
11881 |mut unique_rows, highlight| {
11882 let start = highlight.range.start.to_display_point(&snapshot);
11883 let end = highlight.range.end.to_display_point(&snapshot);
11884 let start_row = start.row().0;
11885 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11886 && end.column() == 0
11887 {
11888 end.row().0.saturating_sub(1)
11889 } else {
11890 end.row().0
11891 };
11892 for row in start_row..=end_row {
11893 let used_index =
11894 used_highlight_orders.entry(row).or_insert(highlight.index);
11895 if highlight.index >= *used_index {
11896 *used_index = highlight.index;
11897 unique_rows.insert(DisplayRow(row), highlight.color);
11898 }
11899 }
11900 unique_rows
11901 },
11902 )
11903 }
11904
11905 pub fn highlighted_display_row_for_autoscroll(
11906 &self,
11907 snapshot: &DisplaySnapshot,
11908 ) -> Option<DisplayRow> {
11909 self.highlighted_rows
11910 .values()
11911 .flat_map(|highlighted_rows| highlighted_rows.iter())
11912 .filter_map(|highlight| {
11913 if highlight.should_autoscroll {
11914 Some(highlight.range.start.to_display_point(snapshot).row())
11915 } else {
11916 None
11917 }
11918 })
11919 .min()
11920 }
11921
11922 pub fn set_search_within_ranges(
11923 &mut self,
11924 ranges: &[Range<Anchor>],
11925 cx: &mut ViewContext<Self>,
11926 ) {
11927 self.highlight_background::<SearchWithinRange>(
11928 ranges,
11929 |colors| colors.editor_document_highlight_read_background,
11930 cx,
11931 )
11932 }
11933
11934 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11935 self.breadcrumb_header = Some(new_header);
11936 }
11937
11938 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11939 self.clear_background_highlights::<SearchWithinRange>(cx);
11940 }
11941
11942 pub fn highlight_background<T: 'static>(
11943 &mut self,
11944 ranges: &[Range<Anchor>],
11945 color_fetcher: fn(&ThemeColors) -> Hsla,
11946 cx: &mut ViewContext<Self>,
11947 ) {
11948 self.background_highlights
11949 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11950 self.scrollbar_marker_state.dirty = true;
11951 cx.notify();
11952 }
11953
11954 pub fn clear_background_highlights<T: 'static>(
11955 &mut self,
11956 cx: &mut ViewContext<Self>,
11957 ) -> Option<BackgroundHighlight> {
11958 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11959 if !text_highlights.1.is_empty() {
11960 self.scrollbar_marker_state.dirty = true;
11961 cx.notify();
11962 }
11963 Some(text_highlights)
11964 }
11965
11966 pub fn highlight_gutter<T: 'static>(
11967 &mut self,
11968 ranges: &[Range<Anchor>],
11969 color_fetcher: fn(&AppContext) -> Hsla,
11970 cx: &mut ViewContext<Self>,
11971 ) {
11972 self.gutter_highlights
11973 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11974 cx.notify();
11975 }
11976
11977 pub fn clear_gutter_highlights<T: 'static>(
11978 &mut self,
11979 cx: &mut ViewContext<Self>,
11980 ) -> Option<GutterHighlight> {
11981 cx.notify();
11982 self.gutter_highlights.remove(&TypeId::of::<T>())
11983 }
11984
11985 #[cfg(feature = "test-support")]
11986 pub fn all_text_background_highlights(
11987 &mut self,
11988 cx: &mut ViewContext<Self>,
11989 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11990 let snapshot = self.snapshot(cx);
11991 let buffer = &snapshot.buffer_snapshot;
11992 let start = buffer.anchor_before(0);
11993 let end = buffer.anchor_after(buffer.len());
11994 let theme = cx.theme().colors();
11995 self.background_highlights_in_range(start..end, &snapshot, theme)
11996 }
11997
11998 #[cfg(feature = "test-support")]
11999 pub fn search_background_highlights(
12000 &mut self,
12001 cx: &mut ViewContext<Self>,
12002 ) -> Vec<Range<Point>> {
12003 let snapshot = self.buffer().read(cx).snapshot(cx);
12004
12005 let highlights = self
12006 .background_highlights
12007 .get(&TypeId::of::<items::BufferSearchHighlights>());
12008
12009 if let Some((_color, ranges)) = highlights {
12010 ranges
12011 .iter()
12012 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
12013 .collect_vec()
12014 } else {
12015 vec![]
12016 }
12017 }
12018
12019 fn document_highlights_for_position<'a>(
12020 &'a self,
12021 position: Anchor,
12022 buffer: &'a MultiBufferSnapshot,
12023 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
12024 let read_highlights = self
12025 .background_highlights
12026 .get(&TypeId::of::<DocumentHighlightRead>())
12027 .map(|h| &h.1);
12028 let write_highlights = self
12029 .background_highlights
12030 .get(&TypeId::of::<DocumentHighlightWrite>())
12031 .map(|h| &h.1);
12032 let left_position = position.bias_left(buffer);
12033 let right_position = position.bias_right(buffer);
12034 read_highlights
12035 .into_iter()
12036 .chain(write_highlights)
12037 .flat_map(move |ranges| {
12038 let start_ix = match ranges.binary_search_by(|probe| {
12039 let cmp = probe.end.cmp(&left_position, buffer);
12040 if cmp.is_ge() {
12041 Ordering::Greater
12042 } else {
12043 Ordering::Less
12044 }
12045 }) {
12046 Ok(i) | Err(i) => i,
12047 };
12048
12049 ranges[start_ix..]
12050 .iter()
12051 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12052 })
12053 }
12054
12055 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12056 self.background_highlights
12057 .get(&TypeId::of::<T>())
12058 .map_or(false, |(_, highlights)| !highlights.is_empty())
12059 }
12060
12061 pub fn background_highlights_in_range(
12062 &self,
12063 search_range: Range<Anchor>,
12064 display_snapshot: &DisplaySnapshot,
12065 theme: &ThemeColors,
12066 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12067 let mut results = Vec::new();
12068 for (color_fetcher, ranges) in self.background_highlights.values() {
12069 let color = color_fetcher(theme);
12070 let start_ix = match ranges.binary_search_by(|probe| {
12071 let cmp = probe
12072 .end
12073 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12074 if cmp.is_gt() {
12075 Ordering::Greater
12076 } else {
12077 Ordering::Less
12078 }
12079 }) {
12080 Ok(i) | Err(i) => i,
12081 };
12082 for range in &ranges[start_ix..] {
12083 if range
12084 .start
12085 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12086 .is_ge()
12087 {
12088 break;
12089 }
12090
12091 let start = range.start.to_display_point(display_snapshot);
12092 let end = range.end.to_display_point(display_snapshot);
12093 results.push((start..end, color))
12094 }
12095 }
12096 results
12097 }
12098
12099 pub fn background_highlight_row_ranges<T: 'static>(
12100 &self,
12101 search_range: Range<Anchor>,
12102 display_snapshot: &DisplaySnapshot,
12103 count: usize,
12104 ) -> Vec<RangeInclusive<DisplayPoint>> {
12105 let mut results = Vec::new();
12106 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12107 return vec![];
12108 };
12109
12110 let start_ix = match ranges.binary_search_by(|probe| {
12111 let cmp = probe
12112 .end
12113 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12114 if cmp.is_gt() {
12115 Ordering::Greater
12116 } else {
12117 Ordering::Less
12118 }
12119 }) {
12120 Ok(i) | Err(i) => i,
12121 };
12122 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12123 if let (Some(start_display), Some(end_display)) = (start, end) {
12124 results.push(
12125 start_display.to_display_point(display_snapshot)
12126 ..=end_display.to_display_point(display_snapshot),
12127 );
12128 }
12129 };
12130 let mut start_row: Option<Point> = None;
12131 let mut end_row: Option<Point> = None;
12132 if ranges.len() > count {
12133 return Vec::new();
12134 }
12135 for range in &ranges[start_ix..] {
12136 if range
12137 .start
12138 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12139 .is_ge()
12140 {
12141 break;
12142 }
12143 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12144 if let Some(current_row) = &end_row {
12145 if end.row == current_row.row {
12146 continue;
12147 }
12148 }
12149 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12150 if start_row.is_none() {
12151 assert_eq!(end_row, None);
12152 start_row = Some(start);
12153 end_row = Some(end);
12154 continue;
12155 }
12156 if let Some(current_end) = end_row.as_mut() {
12157 if start.row > current_end.row + 1 {
12158 push_region(start_row, end_row);
12159 start_row = Some(start);
12160 end_row = Some(end);
12161 } else {
12162 // Merge two hunks.
12163 *current_end = end;
12164 }
12165 } else {
12166 unreachable!();
12167 }
12168 }
12169 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12170 push_region(start_row, end_row);
12171 results
12172 }
12173
12174 pub fn gutter_highlights_in_range(
12175 &self,
12176 search_range: Range<Anchor>,
12177 display_snapshot: &DisplaySnapshot,
12178 cx: &AppContext,
12179 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12180 let mut results = Vec::new();
12181 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12182 let color = color_fetcher(cx);
12183 let start_ix = match ranges.binary_search_by(|probe| {
12184 let cmp = probe
12185 .end
12186 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12187 if cmp.is_gt() {
12188 Ordering::Greater
12189 } else {
12190 Ordering::Less
12191 }
12192 }) {
12193 Ok(i) | Err(i) => i,
12194 };
12195 for range in &ranges[start_ix..] {
12196 if range
12197 .start
12198 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12199 .is_ge()
12200 {
12201 break;
12202 }
12203
12204 let start = range.start.to_display_point(display_snapshot);
12205 let end = range.end.to_display_point(display_snapshot);
12206 results.push((start..end, color))
12207 }
12208 }
12209 results
12210 }
12211
12212 /// Get the text ranges corresponding to the redaction query
12213 pub fn redacted_ranges(
12214 &self,
12215 search_range: Range<Anchor>,
12216 display_snapshot: &DisplaySnapshot,
12217 cx: &WindowContext,
12218 ) -> Vec<Range<DisplayPoint>> {
12219 display_snapshot
12220 .buffer_snapshot
12221 .redacted_ranges(search_range, |file| {
12222 if let Some(file) = file {
12223 file.is_private()
12224 && EditorSettings::get(
12225 Some(SettingsLocation {
12226 worktree_id: file.worktree_id(cx),
12227 path: file.path().as_ref(),
12228 }),
12229 cx,
12230 )
12231 .redact_private_values
12232 } else {
12233 false
12234 }
12235 })
12236 .map(|range| {
12237 range.start.to_display_point(display_snapshot)
12238 ..range.end.to_display_point(display_snapshot)
12239 })
12240 .collect()
12241 }
12242
12243 pub fn highlight_text<T: 'static>(
12244 &mut self,
12245 ranges: Vec<Range<Anchor>>,
12246 style: HighlightStyle,
12247 cx: &mut ViewContext<Self>,
12248 ) {
12249 self.display_map.update(cx, |map, _| {
12250 map.highlight_text(TypeId::of::<T>(), ranges, style)
12251 });
12252 cx.notify();
12253 }
12254
12255 pub(crate) fn highlight_inlays<T: 'static>(
12256 &mut self,
12257 highlights: Vec<InlayHighlight>,
12258 style: HighlightStyle,
12259 cx: &mut ViewContext<Self>,
12260 ) {
12261 self.display_map.update(cx, |map, _| {
12262 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12263 });
12264 cx.notify();
12265 }
12266
12267 pub fn text_highlights<'a, T: 'static>(
12268 &'a self,
12269 cx: &'a AppContext,
12270 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12271 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12272 }
12273
12274 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12275 let cleared = self
12276 .display_map
12277 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12278 if cleared {
12279 cx.notify();
12280 }
12281 }
12282
12283 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12284 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12285 && self.focus_handle.is_focused(cx)
12286 }
12287
12288 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12289 self.show_cursor_when_unfocused = is_enabled;
12290 cx.notify();
12291 }
12292
12293 pub fn lsp_store(&self, cx: &AppContext) -> Option<Model<LspStore>> {
12294 self.project
12295 .as_ref()
12296 .map(|project| project.read(cx).lsp_store())
12297 }
12298
12299 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12300 cx.notify();
12301 }
12302
12303 fn on_buffer_event(
12304 &mut self,
12305 multibuffer: Model<MultiBuffer>,
12306 event: &multi_buffer::Event,
12307 cx: &mut ViewContext<Self>,
12308 ) {
12309 match event {
12310 multi_buffer::Event::Edited {
12311 singleton_buffer_edited,
12312 edited_buffer: buffer_edited,
12313 } => {
12314 self.scrollbar_marker_state.dirty = true;
12315 self.active_indent_guides_state.dirty = true;
12316 self.refresh_active_diagnostics(cx);
12317 self.refresh_code_actions(cx);
12318 if self.has_active_inline_completion() {
12319 self.update_visible_inline_completion(cx);
12320 }
12321 if let Some(buffer) = buffer_edited {
12322 let buffer_id = buffer.read(cx).remote_id();
12323 if !self.registered_buffers.contains_key(&buffer_id) {
12324 if let Some(lsp_store) = self.lsp_store(cx) {
12325 lsp_store.update(cx, |lsp_store, cx| {
12326 self.registered_buffers.insert(
12327 buffer_id,
12328 lsp_store.register_buffer_with_language_servers(&buffer, cx),
12329 );
12330 })
12331 }
12332 }
12333 }
12334 cx.emit(EditorEvent::BufferEdited);
12335 cx.emit(SearchEvent::MatchesInvalidated);
12336 if *singleton_buffer_edited {
12337 if let Some(project) = &self.project {
12338 let project = project.read(cx);
12339 #[allow(clippy::mutable_key_type)]
12340 let languages_affected = multibuffer
12341 .read(cx)
12342 .all_buffers()
12343 .into_iter()
12344 .filter_map(|buffer| {
12345 let buffer = buffer.read(cx);
12346 let language = buffer.language()?;
12347 if project.is_local()
12348 && project
12349 .language_servers_for_local_buffer(buffer, cx)
12350 .count()
12351 == 0
12352 {
12353 None
12354 } else {
12355 Some(language)
12356 }
12357 })
12358 .cloned()
12359 .collect::<HashSet<_>>();
12360 if !languages_affected.is_empty() {
12361 self.refresh_inlay_hints(
12362 InlayHintRefreshReason::BufferEdited(languages_affected),
12363 cx,
12364 );
12365 }
12366 }
12367 }
12368
12369 let Some(project) = &self.project else { return };
12370 let (telemetry, is_via_ssh) = {
12371 let project = project.read(cx);
12372 let telemetry = project.client().telemetry().clone();
12373 let is_via_ssh = project.is_via_ssh();
12374 (telemetry, is_via_ssh)
12375 };
12376 refresh_linked_ranges(self, cx);
12377 telemetry.log_edit_event("editor", is_via_ssh);
12378 }
12379 multi_buffer::Event::ExcerptsAdded {
12380 buffer,
12381 predecessor,
12382 excerpts,
12383 } => {
12384 self.tasks_update_task = Some(self.refresh_runnables(cx));
12385 let buffer_id = buffer.read(cx).remote_id();
12386 if !self.diff_map.diff_bases.contains_key(&buffer_id) {
12387 if let Some(project) = &self.project {
12388 get_unstaged_changes_for_buffers(project, [buffer.clone()], cx);
12389 }
12390 }
12391 cx.emit(EditorEvent::ExcerptsAdded {
12392 buffer: buffer.clone(),
12393 predecessor: *predecessor,
12394 excerpts: excerpts.clone(),
12395 });
12396 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12397 }
12398 multi_buffer::Event::ExcerptsRemoved { ids } => {
12399 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12400 let buffer = self.buffer.read(cx);
12401 self.registered_buffers
12402 .retain(|buffer_id, _| buffer.buffer(*buffer_id).is_some());
12403 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12404 }
12405 multi_buffer::Event::ExcerptsEdited { ids } => {
12406 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12407 }
12408 multi_buffer::Event::ExcerptsExpanded { ids } => {
12409 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12410 }
12411 multi_buffer::Event::Reparsed(buffer_id) => {
12412 self.tasks_update_task = Some(self.refresh_runnables(cx));
12413
12414 cx.emit(EditorEvent::Reparsed(*buffer_id));
12415 }
12416 multi_buffer::Event::LanguageChanged(buffer_id) => {
12417 linked_editing_ranges::refresh_linked_ranges(self, cx);
12418 cx.emit(EditorEvent::Reparsed(*buffer_id));
12419 cx.notify();
12420 }
12421 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12422 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12423 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12424 cx.emit(EditorEvent::TitleChanged)
12425 }
12426 // multi_buffer::Event::DiffBaseChanged => {
12427 // self.scrollbar_marker_state.dirty = true;
12428 // cx.emit(EditorEvent::DiffBaseChanged);
12429 // cx.notify();
12430 // }
12431 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12432 multi_buffer::Event::DiagnosticsUpdated => {
12433 self.refresh_active_diagnostics(cx);
12434 self.scrollbar_marker_state.dirty = true;
12435 cx.notify();
12436 }
12437 _ => {}
12438 };
12439 }
12440
12441 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12442 cx.notify();
12443 }
12444
12445 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12446 self.tasks_update_task = Some(self.refresh_runnables(cx));
12447 self.refresh_inline_completion(true, false, cx);
12448 self.refresh_inlay_hints(
12449 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12450 self.selections.newest_anchor().head(),
12451 &self.buffer.read(cx).snapshot(cx),
12452 cx,
12453 )),
12454 cx,
12455 );
12456
12457 let old_cursor_shape = self.cursor_shape;
12458
12459 {
12460 let editor_settings = EditorSettings::get_global(cx);
12461 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12462 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12463 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12464 }
12465
12466 if old_cursor_shape != self.cursor_shape {
12467 cx.emit(EditorEvent::CursorShapeChanged);
12468 }
12469
12470 let project_settings = ProjectSettings::get_global(cx);
12471 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12472
12473 if self.mode == EditorMode::Full {
12474 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12475 if self.git_blame_inline_enabled != inline_blame_enabled {
12476 self.toggle_git_blame_inline_internal(false, cx);
12477 }
12478 }
12479
12480 cx.notify();
12481 }
12482
12483 pub fn set_searchable(&mut self, searchable: bool) {
12484 self.searchable = searchable;
12485 }
12486
12487 pub fn searchable(&self) -> bool {
12488 self.searchable
12489 }
12490
12491 fn open_proposed_changes_editor(
12492 &mut self,
12493 _: &OpenProposedChangesEditor,
12494 cx: &mut ViewContext<Self>,
12495 ) {
12496 let Some(workspace) = self.workspace() else {
12497 cx.propagate();
12498 return;
12499 };
12500
12501 let selections = self.selections.all::<usize>(cx);
12502 let multi_buffer = self.buffer.read(cx);
12503 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
12504 let mut new_selections_by_buffer = HashMap::default();
12505 for selection in selections {
12506 for (excerpt, range) in
12507 multi_buffer_snapshot.range_to_buffer_ranges(selection.start..selection.end)
12508 {
12509 let mut range = range.to_point(excerpt.buffer());
12510 range.start.column = 0;
12511 range.end.column = excerpt.buffer().line_len(range.end.row);
12512 new_selections_by_buffer
12513 .entry(multi_buffer.buffer(excerpt.buffer_id()).unwrap())
12514 .or_insert(Vec::new())
12515 .push(range)
12516 }
12517 }
12518
12519 let proposed_changes_buffers = new_selections_by_buffer
12520 .into_iter()
12521 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12522 .collect::<Vec<_>>();
12523 let proposed_changes_editor = cx.new_view(|cx| {
12524 ProposedChangesEditor::new(
12525 "Proposed changes",
12526 proposed_changes_buffers,
12527 self.project.clone(),
12528 cx,
12529 )
12530 });
12531
12532 cx.window_context().defer(move |cx| {
12533 workspace.update(cx, |workspace, cx| {
12534 workspace.active_pane().update(cx, |pane, cx| {
12535 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12536 });
12537 });
12538 });
12539 }
12540
12541 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12542 self.open_excerpts_common(None, true, cx)
12543 }
12544
12545 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12546 self.open_excerpts_common(None, false, cx)
12547 }
12548
12549 fn open_excerpts_common(
12550 &mut self,
12551 jump_data: Option<JumpData>,
12552 split: bool,
12553 cx: &mut ViewContext<Self>,
12554 ) {
12555 let Some(workspace) = self.workspace() else {
12556 cx.propagate();
12557 return;
12558 };
12559
12560 if self.buffer.read(cx).is_singleton() {
12561 cx.propagate();
12562 return;
12563 }
12564
12565 let mut new_selections_by_buffer = HashMap::default();
12566 match &jump_data {
12567 Some(JumpData::MultiBufferPoint {
12568 excerpt_id,
12569 position,
12570 anchor,
12571 line_offset_from_top,
12572 }) => {
12573 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12574 if let Some(buffer) = multi_buffer_snapshot
12575 .buffer_id_for_excerpt(*excerpt_id)
12576 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12577 {
12578 let buffer_snapshot = buffer.read(cx).snapshot();
12579 let jump_to_point = if buffer_snapshot.can_resolve(anchor) {
12580 language::ToPoint::to_point(anchor, &buffer_snapshot)
12581 } else {
12582 buffer_snapshot.clip_point(*position, Bias::Left)
12583 };
12584 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12585 new_selections_by_buffer.insert(
12586 buffer,
12587 (
12588 vec![jump_to_offset..jump_to_offset],
12589 Some(*line_offset_from_top),
12590 ),
12591 );
12592 }
12593 }
12594 Some(JumpData::MultiBufferRow {
12595 row,
12596 line_offset_from_top,
12597 }) => {
12598 let point = MultiBufferPoint::new(row.0, 0);
12599 if let Some((buffer, buffer_point, _)) =
12600 self.buffer.read(cx).point_to_buffer_point(point, cx)
12601 {
12602 let buffer_offset = buffer.read(cx).point_to_offset(buffer_point);
12603 new_selections_by_buffer
12604 .entry(buffer)
12605 .or_insert((Vec::new(), Some(*line_offset_from_top)))
12606 .0
12607 .push(buffer_offset..buffer_offset)
12608 }
12609 }
12610 None => {
12611 let selections = self.selections.all::<usize>(cx);
12612 let multi_buffer = self.buffer.read(cx);
12613 for selection in selections {
12614 for (excerpt, mut range) in multi_buffer
12615 .snapshot(cx)
12616 .range_to_buffer_ranges(selection.range())
12617 {
12618 // When editing branch buffers, jump to the corresponding location
12619 // in their base buffer.
12620 let mut buffer_handle = multi_buffer.buffer(excerpt.buffer_id()).unwrap();
12621 let buffer = buffer_handle.read(cx);
12622 if let Some(base_buffer) = buffer.base_buffer() {
12623 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12624 buffer_handle = base_buffer;
12625 }
12626
12627 if selection.reversed {
12628 mem::swap(&mut range.start, &mut range.end);
12629 }
12630 new_selections_by_buffer
12631 .entry(buffer_handle)
12632 .or_insert((Vec::new(), None))
12633 .0
12634 .push(range)
12635 }
12636 }
12637 }
12638 }
12639
12640 if new_selections_by_buffer.is_empty() {
12641 return;
12642 }
12643
12644 // We defer the pane interaction because we ourselves are a workspace item
12645 // and activating a new item causes the pane to call a method on us reentrantly,
12646 // which panics if we're on the stack.
12647 cx.window_context().defer(move |cx| {
12648 workspace.update(cx, |workspace, cx| {
12649 let pane = if split {
12650 workspace.adjacent_pane(cx)
12651 } else {
12652 workspace.active_pane().clone()
12653 };
12654
12655 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12656 let editor = buffer
12657 .read(cx)
12658 .file()
12659 .is_none()
12660 .then(|| {
12661 // Handle file-less buffers separately: those are not really the project items, so won't have a project path or entity id,
12662 // so `workspace.open_project_item` will never find them, always opening a new editor.
12663 // Instead, we try to activate the existing editor in the pane first.
12664 let (editor, pane_item_index) =
12665 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12666 let editor = item.downcast::<Editor>()?;
12667 let singleton_buffer =
12668 editor.read(cx).buffer().read(cx).as_singleton()?;
12669 if singleton_buffer == buffer {
12670 Some((editor, i))
12671 } else {
12672 None
12673 }
12674 })?;
12675 pane.update(cx, |pane, cx| {
12676 pane.activate_item(pane_item_index, true, true, cx)
12677 });
12678 Some(editor)
12679 })
12680 .flatten()
12681 .unwrap_or_else(|| {
12682 workspace.open_project_item::<Self>(
12683 pane.clone(),
12684 buffer,
12685 true,
12686 true,
12687 cx,
12688 )
12689 });
12690
12691 editor.update(cx, |editor, cx| {
12692 let autoscroll = match scroll_offset {
12693 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12694 None => Autoscroll::newest(),
12695 };
12696 let nav_history = editor.nav_history.take();
12697 editor.change_selections(Some(autoscroll), cx, |s| {
12698 s.select_ranges(ranges);
12699 });
12700 editor.nav_history = nav_history;
12701 });
12702 }
12703 })
12704 });
12705 }
12706
12707 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12708 let snapshot = self.buffer.read(cx).read(cx);
12709 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12710 Some(
12711 ranges
12712 .iter()
12713 .map(move |range| {
12714 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12715 })
12716 .collect(),
12717 )
12718 }
12719
12720 fn selection_replacement_ranges(
12721 &self,
12722 range: Range<OffsetUtf16>,
12723 cx: &mut AppContext,
12724 ) -> Vec<Range<OffsetUtf16>> {
12725 let selections = self.selections.all::<OffsetUtf16>(cx);
12726 let newest_selection = selections
12727 .iter()
12728 .max_by_key(|selection| selection.id)
12729 .unwrap();
12730 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12731 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12732 let snapshot = self.buffer.read(cx).read(cx);
12733 selections
12734 .into_iter()
12735 .map(|mut selection| {
12736 selection.start.0 =
12737 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12738 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12739 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12740 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12741 })
12742 .collect()
12743 }
12744
12745 fn report_editor_event(
12746 &self,
12747 event_type: &'static str,
12748 file_extension: Option<String>,
12749 cx: &AppContext,
12750 ) {
12751 if cfg!(any(test, feature = "test-support")) {
12752 return;
12753 }
12754
12755 let Some(project) = &self.project else { return };
12756
12757 // If None, we are in a file without an extension
12758 let file = self
12759 .buffer
12760 .read(cx)
12761 .as_singleton()
12762 .and_then(|b| b.read(cx).file());
12763 let file_extension = file_extension.or(file
12764 .as_ref()
12765 .and_then(|file| Path::new(file.file_name(cx)).extension())
12766 .and_then(|e| e.to_str())
12767 .map(|a| a.to_string()));
12768
12769 let vim_mode = cx
12770 .global::<SettingsStore>()
12771 .raw_user_settings()
12772 .get("vim_mode")
12773 == Some(&serde_json::Value::Bool(true));
12774
12775 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12776 == language::language_settings::InlineCompletionProvider::Copilot;
12777 let copilot_enabled_for_language = self
12778 .buffer
12779 .read(cx)
12780 .settings_at(0, cx)
12781 .show_inline_completions;
12782
12783 let project = project.read(cx);
12784 telemetry::event!(
12785 event_type,
12786 file_extension,
12787 vim_mode,
12788 copilot_enabled,
12789 copilot_enabled_for_language,
12790 is_via_ssh = project.is_via_ssh(),
12791 );
12792 }
12793
12794 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12795 /// with each line being an array of {text, highlight} objects.
12796 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12797 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12798 return;
12799 };
12800
12801 #[derive(Serialize)]
12802 struct Chunk<'a> {
12803 text: String,
12804 highlight: Option<&'a str>,
12805 }
12806
12807 let snapshot = buffer.read(cx).snapshot();
12808 let range = self
12809 .selected_text_range(false, cx)
12810 .and_then(|selection| {
12811 if selection.range.is_empty() {
12812 None
12813 } else {
12814 Some(selection.range)
12815 }
12816 })
12817 .unwrap_or_else(|| 0..snapshot.len());
12818
12819 let chunks = snapshot.chunks(range, true);
12820 let mut lines = Vec::new();
12821 let mut line: VecDeque<Chunk> = VecDeque::new();
12822
12823 let Some(style) = self.style.as_ref() else {
12824 return;
12825 };
12826
12827 for chunk in chunks {
12828 let highlight = chunk
12829 .syntax_highlight_id
12830 .and_then(|id| id.name(&style.syntax));
12831 let mut chunk_lines = chunk.text.split('\n').peekable();
12832 while let Some(text) = chunk_lines.next() {
12833 let mut merged_with_last_token = false;
12834 if let Some(last_token) = line.back_mut() {
12835 if last_token.highlight == highlight {
12836 last_token.text.push_str(text);
12837 merged_with_last_token = true;
12838 }
12839 }
12840
12841 if !merged_with_last_token {
12842 line.push_back(Chunk {
12843 text: text.into(),
12844 highlight,
12845 });
12846 }
12847
12848 if chunk_lines.peek().is_some() {
12849 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12850 line.pop_front();
12851 }
12852 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12853 line.pop_back();
12854 }
12855
12856 lines.push(mem::take(&mut line));
12857 }
12858 }
12859 }
12860
12861 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12862 return;
12863 };
12864 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12865 }
12866
12867 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
12868 self.request_autoscroll(Autoscroll::newest(), cx);
12869 let position = self.selections.newest_display(cx).start;
12870 mouse_context_menu::deploy_context_menu(self, None, position, cx);
12871 }
12872
12873 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12874 &self.inlay_hint_cache
12875 }
12876
12877 pub fn replay_insert_event(
12878 &mut self,
12879 text: &str,
12880 relative_utf16_range: Option<Range<isize>>,
12881 cx: &mut ViewContext<Self>,
12882 ) {
12883 if !self.input_enabled {
12884 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12885 return;
12886 }
12887 if let Some(relative_utf16_range) = relative_utf16_range {
12888 let selections = self.selections.all::<OffsetUtf16>(cx);
12889 self.change_selections(None, cx, |s| {
12890 let new_ranges = selections.into_iter().map(|range| {
12891 let start = OffsetUtf16(
12892 range
12893 .head()
12894 .0
12895 .saturating_add_signed(relative_utf16_range.start),
12896 );
12897 let end = OffsetUtf16(
12898 range
12899 .head()
12900 .0
12901 .saturating_add_signed(relative_utf16_range.end),
12902 );
12903 start..end
12904 });
12905 s.select_ranges(new_ranges);
12906 });
12907 }
12908
12909 self.handle_input(text, cx);
12910 }
12911
12912 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12913 let Some(provider) = self.semantics_provider.as_ref() else {
12914 return false;
12915 };
12916
12917 let mut supports = false;
12918 self.buffer().read(cx).for_each_buffer(|buffer| {
12919 supports |= provider.supports_inlay_hints(buffer, cx);
12920 });
12921 supports
12922 }
12923
12924 pub fn focus(&self, cx: &mut WindowContext) {
12925 cx.focus(&self.focus_handle)
12926 }
12927
12928 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12929 self.focus_handle.is_focused(cx)
12930 }
12931
12932 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12933 cx.emit(EditorEvent::Focused);
12934
12935 if let Some(descendant) = self
12936 .last_focused_descendant
12937 .take()
12938 .and_then(|descendant| descendant.upgrade())
12939 {
12940 cx.focus(&descendant);
12941 } else {
12942 if let Some(blame) = self.blame.as_ref() {
12943 blame.update(cx, GitBlame::focus)
12944 }
12945
12946 self.blink_manager.update(cx, BlinkManager::enable);
12947 self.show_cursor_names(cx);
12948 self.buffer.update(cx, |buffer, cx| {
12949 buffer.finalize_last_transaction(cx);
12950 if self.leader_peer_id.is_none() {
12951 buffer.set_active_selections(
12952 &self.selections.disjoint_anchors(),
12953 self.selections.line_mode,
12954 self.cursor_shape,
12955 cx,
12956 );
12957 }
12958 });
12959 }
12960 }
12961
12962 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12963 cx.emit(EditorEvent::FocusedIn)
12964 }
12965
12966 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12967 if event.blurred != self.focus_handle {
12968 self.last_focused_descendant = Some(event.blurred);
12969 }
12970 }
12971
12972 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12973 self.blink_manager.update(cx, BlinkManager::disable);
12974 self.buffer
12975 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12976
12977 if let Some(blame) = self.blame.as_ref() {
12978 blame.update(cx, GitBlame::blur)
12979 }
12980 if !self.hover_state.focused(cx) {
12981 hide_hover(self, cx);
12982 }
12983
12984 self.hide_context_menu(cx);
12985 cx.emit(EditorEvent::Blurred);
12986 cx.notify();
12987 }
12988
12989 pub fn register_action<A: Action>(
12990 &mut self,
12991 listener: impl Fn(&A, &mut WindowContext) + 'static,
12992 ) -> Subscription {
12993 let id = self.next_editor_action_id.post_inc();
12994 let listener = Arc::new(listener);
12995 self.editor_actions.borrow_mut().insert(
12996 id,
12997 Box::new(move |cx| {
12998 let cx = cx.window_context();
12999 let listener = listener.clone();
13000 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
13001 let action = action.downcast_ref().unwrap();
13002 if phase == DispatchPhase::Bubble {
13003 listener(action, cx)
13004 }
13005 })
13006 }),
13007 );
13008
13009 let editor_actions = self.editor_actions.clone();
13010 Subscription::new(move || {
13011 editor_actions.borrow_mut().remove(&id);
13012 })
13013 }
13014
13015 pub fn file_header_size(&self) -> u32 {
13016 FILE_HEADER_HEIGHT
13017 }
13018
13019 pub fn revert(
13020 &mut self,
13021 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
13022 cx: &mut ViewContext<Self>,
13023 ) {
13024 self.buffer().update(cx, |multi_buffer, cx| {
13025 for (buffer_id, changes) in revert_changes {
13026 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
13027 buffer.update(cx, |buffer, cx| {
13028 buffer.edit(
13029 changes.into_iter().map(|(range, text)| {
13030 (range, text.to_string().map(Arc::<str>::from))
13031 }),
13032 None,
13033 cx,
13034 );
13035 });
13036 }
13037 }
13038 });
13039 self.change_selections(None, cx, |selections| selections.refresh());
13040 }
13041
13042 pub fn to_pixel_point(
13043 &mut self,
13044 source: multi_buffer::Anchor,
13045 editor_snapshot: &EditorSnapshot,
13046 cx: &mut ViewContext<Self>,
13047 ) -> Option<gpui::Point<Pixels>> {
13048 let source_point = source.to_display_point(editor_snapshot);
13049 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13050 }
13051
13052 pub fn display_to_pixel_point(
13053 &self,
13054 source: DisplayPoint,
13055 editor_snapshot: &EditorSnapshot,
13056 cx: &WindowContext,
13057 ) -> Option<gpui::Point<Pixels>> {
13058 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13059 let text_layout_details = self.text_layout_details(cx);
13060 let scroll_top = text_layout_details
13061 .scroll_anchor
13062 .scroll_position(editor_snapshot)
13063 .y;
13064
13065 if source.row().as_f32() < scroll_top.floor() {
13066 return None;
13067 }
13068 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13069 let source_y = line_height * (source.row().as_f32() - scroll_top);
13070 Some(gpui::Point::new(source_x, source_y))
13071 }
13072
13073 pub fn has_active_completions_menu(&self) -> bool {
13074 self.context_menu.borrow().as_ref().map_or(false, |menu| {
13075 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
13076 })
13077 }
13078
13079 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13080 self.addons
13081 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13082 }
13083
13084 pub fn unregister_addon<T: Addon>(&mut self) {
13085 self.addons.remove(&std::any::TypeId::of::<T>());
13086 }
13087
13088 pub fn addon<T: Addon>(&self) -> Option<&T> {
13089 let type_id = std::any::TypeId::of::<T>();
13090 self.addons
13091 .get(&type_id)
13092 .and_then(|item| item.to_any().downcast_ref::<T>())
13093 }
13094
13095 pub fn add_change_set(
13096 &mut self,
13097 change_set: Model<BufferChangeSet>,
13098 cx: &mut ViewContext<Self>,
13099 ) {
13100 self.diff_map.add_change_set(change_set, cx);
13101 }
13102
13103 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
13104 let text_layout_details = self.text_layout_details(cx);
13105 let style = &text_layout_details.editor_style;
13106 let font_id = cx.text_system().resolve_font(&style.text.font());
13107 let font_size = style.text.font_size.to_pixels(cx.rem_size());
13108 let line_height = style.text.line_height_in_pixels(cx.rem_size());
13109
13110 let em_width = cx
13111 .text_system()
13112 .typographic_bounds(font_id, font_size, 'm')
13113 .unwrap()
13114 .size
13115 .width;
13116
13117 gpui::Point::new(em_width, line_height)
13118 }
13119}
13120
13121fn get_unstaged_changes_for_buffers(
13122 project: &Model<Project>,
13123 buffers: impl IntoIterator<Item = Model<Buffer>>,
13124 cx: &mut ViewContext<Editor>,
13125) {
13126 let mut tasks = Vec::new();
13127 project.update(cx, |project, cx| {
13128 for buffer in buffers {
13129 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
13130 }
13131 });
13132 cx.spawn(|this, mut cx| async move {
13133 let change_sets = futures::future::join_all(tasks).await;
13134 this.update(&mut cx, |this, cx| {
13135 for change_set in change_sets {
13136 if let Some(change_set) = change_set.log_err() {
13137 this.diff_map.add_change_set(change_set, cx);
13138 }
13139 }
13140 })
13141 .ok();
13142 })
13143 .detach();
13144}
13145
13146fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13147 let tab_size = tab_size.get() as usize;
13148 let mut width = offset;
13149
13150 for ch in text.chars() {
13151 width += if ch == '\t' {
13152 tab_size - (width % tab_size)
13153 } else {
13154 1
13155 };
13156 }
13157
13158 width - offset
13159}
13160
13161#[cfg(test)]
13162mod tests {
13163 use super::*;
13164
13165 #[test]
13166 fn test_string_size_with_expanded_tabs() {
13167 let nz = |val| NonZeroU32::new(val).unwrap();
13168 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13169 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13170 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13171 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13172 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13173 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13174 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13175 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13176 }
13177}
13178
13179/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13180struct WordBreakingTokenizer<'a> {
13181 input: &'a str,
13182}
13183
13184impl<'a> WordBreakingTokenizer<'a> {
13185 fn new(input: &'a str) -> Self {
13186 Self { input }
13187 }
13188}
13189
13190fn is_char_ideographic(ch: char) -> bool {
13191 use unicode_script::Script::*;
13192 use unicode_script::UnicodeScript;
13193 matches!(ch.script(), Han | Tangut | Yi)
13194}
13195
13196fn is_grapheme_ideographic(text: &str) -> bool {
13197 text.chars().any(is_char_ideographic)
13198}
13199
13200fn is_grapheme_whitespace(text: &str) -> bool {
13201 text.chars().any(|x| x.is_whitespace())
13202}
13203
13204fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13205 text.chars().next().map_or(false, |ch| {
13206 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13207 })
13208}
13209
13210#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13211struct WordBreakToken<'a> {
13212 token: &'a str,
13213 grapheme_len: usize,
13214 is_whitespace: bool,
13215}
13216
13217impl<'a> Iterator for WordBreakingTokenizer<'a> {
13218 /// Yields a span, the count of graphemes in the token, and whether it was
13219 /// whitespace. Note that it also breaks at word boundaries.
13220 type Item = WordBreakToken<'a>;
13221
13222 fn next(&mut self) -> Option<Self::Item> {
13223 use unicode_segmentation::UnicodeSegmentation;
13224 if self.input.is_empty() {
13225 return None;
13226 }
13227
13228 let mut iter = self.input.graphemes(true).peekable();
13229 let mut offset = 0;
13230 let mut graphemes = 0;
13231 if let Some(first_grapheme) = iter.next() {
13232 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13233 offset += first_grapheme.len();
13234 graphemes += 1;
13235 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13236 if let Some(grapheme) = iter.peek().copied() {
13237 if should_stay_with_preceding_ideograph(grapheme) {
13238 offset += grapheme.len();
13239 graphemes += 1;
13240 }
13241 }
13242 } else {
13243 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13244 let mut next_word_bound = words.peek().copied();
13245 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13246 next_word_bound = words.next();
13247 }
13248 while let Some(grapheme) = iter.peek().copied() {
13249 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13250 break;
13251 };
13252 if is_grapheme_whitespace(grapheme) != is_whitespace {
13253 break;
13254 };
13255 offset += grapheme.len();
13256 graphemes += 1;
13257 iter.next();
13258 }
13259 }
13260 let token = &self.input[..offset];
13261 self.input = &self.input[offset..];
13262 if is_whitespace {
13263 Some(WordBreakToken {
13264 token: " ",
13265 grapheme_len: 1,
13266 is_whitespace: true,
13267 })
13268 } else {
13269 Some(WordBreakToken {
13270 token,
13271 grapheme_len: graphemes,
13272 is_whitespace: false,
13273 })
13274 }
13275 } else {
13276 None
13277 }
13278 }
13279}
13280
13281#[test]
13282fn test_word_breaking_tokenizer() {
13283 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13284 ("", &[]),
13285 (" ", &[(" ", 1, true)]),
13286 ("Ʒ", &[("Ʒ", 1, false)]),
13287 ("Ǽ", &[("Ǽ", 1, false)]),
13288 ("⋑", &[("⋑", 1, false)]),
13289 ("⋑⋑", &[("⋑⋑", 2, false)]),
13290 (
13291 "原理，进而",
13292 &[
13293 ("原", 1, false),
13294 ("理，", 2, false),
13295 ("进", 1, false),
13296 ("而", 1, false),
13297 ],
13298 ),
13299 (
13300 "hello world",
13301 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13302 ),
13303 (
13304 "hello, world",
13305 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13306 ),
13307 (
13308 " hello world",
13309 &[
13310 (" ", 1, true),
13311 ("hello", 5, false),
13312 (" ", 1, true),
13313 ("world", 5, false),
13314 ],
13315 ),
13316 (
13317 "这是什么 \n 钢笔",
13318 &[
13319 ("这", 1, false),
13320 ("是", 1, false),
13321 ("什", 1, false),
13322 ("么", 1, false),
13323 (" ", 1, true),
13324 ("钢", 1, false),
13325 ("笔", 1, false),
13326 ],
13327 ),
13328 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13329 ];
13330
13331 for (input, result) in tests {
13332 assert_eq!(
13333 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13334 result
13335 .iter()
13336 .copied()
13337 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13338 token,
13339 grapheme_len,
13340 is_whitespace,
13341 })
13342 .collect::<Vec<_>>()
13343 );
13344 }
13345}
13346
13347fn wrap_with_prefix(
13348 line_prefix: String,
13349 unwrapped_text: String,
13350 wrap_column: usize,
13351 tab_size: NonZeroU32,
13352) -> String {
13353 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13354 let mut wrapped_text = String::new();
13355 let mut current_line = line_prefix.clone();
13356
13357 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13358 let mut current_line_len = line_prefix_len;
13359 for WordBreakToken {
13360 token,
13361 grapheme_len,
13362 is_whitespace,
13363 } in tokenizer
13364 {
13365 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13366 wrapped_text.push_str(current_line.trim_end());
13367 wrapped_text.push('\n');
13368 current_line.truncate(line_prefix.len());
13369 current_line_len = line_prefix_len;
13370 if !is_whitespace {
13371 current_line.push_str(token);
13372 current_line_len += grapheme_len;
13373 }
13374 } else if !is_whitespace {
13375 current_line.push_str(token);
13376 current_line_len += grapheme_len;
13377 } else if current_line_len != line_prefix_len {
13378 current_line.push(' ');
13379 current_line_len += 1;
13380 }
13381 }
13382
13383 if !current_line.is_empty() {
13384 wrapped_text.push_str(¤t_line);
13385 }
13386 wrapped_text
13387}
13388
13389#[test]
13390fn test_wrap_with_prefix() {
13391 assert_eq!(
13392 wrap_with_prefix(
13393 "# ".to_string(),
13394 "abcdefg".to_string(),
13395 4,
13396 NonZeroU32::new(4).unwrap()
13397 ),
13398 "# abcdefg"
13399 );
13400 assert_eq!(
13401 wrap_with_prefix(
13402 "".to_string(),
13403 "\thello world".to_string(),
13404 8,
13405 NonZeroU32::new(4).unwrap()
13406 ),
13407 "hello\nworld"
13408 );
13409 assert_eq!(
13410 wrap_with_prefix(
13411 "// ".to_string(),
13412 "xx \nyy zz aa bb cc".to_string(),
13413 12,
13414 NonZeroU32::new(4).unwrap()
13415 ),
13416 "// xx yy zz\n// aa bb cc"
13417 );
13418 assert_eq!(
13419 wrap_with_prefix(
13420 String::new(),
13421 "这是什么 \n 钢笔".to_string(),
13422 3,
13423 NonZeroU32::new(4).unwrap()
13424 ),
13425 "这是什\n么 钢\n笔"
13426 );
13427}
13428
13429fn hunks_for_selections(
13430 snapshot: &EditorSnapshot,
13431 selections: &[Selection<Point>],
13432) -> Vec<MultiBufferDiffHunk> {
13433 hunks_for_ranges(
13434 selections.iter().map(|selection| selection.range()),
13435 snapshot,
13436 )
13437}
13438
13439pub fn hunks_for_ranges(
13440 ranges: impl Iterator<Item = Range<Point>>,
13441 snapshot: &EditorSnapshot,
13442) -> Vec<MultiBufferDiffHunk> {
13443 let mut hunks = Vec::new();
13444 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13445 HashMap::default();
13446 for query_range in ranges {
13447 let query_rows =
13448 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
13449 for hunk in snapshot.diff_map.diff_hunks_in_range(
13450 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
13451 &snapshot.buffer_snapshot,
13452 ) {
13453 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13454 // when the caret is just above or just below the deleted hunk.
13455 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13456 let related_to_selection = if allow_adjacent {
13457 hunk.row_range.overlaps(&query_rows)
13458 || hunk.row_range.start == query_rows.end
13459 || hunk.row_range.end == query_rows.start
13460 } else {
13461 hunk.row_range.overlaps(&query_rows)
13462 };
13463 if related_to_selection {
13464 if !processed_buffer_rows
13465 .entry(hunk.buffer_id)
13466 .or_default()
13467 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13468 {
13469 continue;
13470 }
13471 hunks.push(hunk);
13472 }
13473 }
13474 }
13475
13476 hunks
13477}
13478
13479pub trait CollaborationHub {
13480 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13481 fn user_participant_indices<'a>(
13482 &self,
13483 cx: &'a AppContext,
13484 ) -> &'a HashMap<u64, ParticipantIndex>;
13485 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13486}
13487
13488impl CollaborationHub for Model<Project> {
13489 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13490 self.read(cx).collaborators()
13491 }
13492
13493 fn user_participant_indices<'a>(
13494 &self,
13495 cx: &'a AppContext,
13496 ) -> &'a HashMap<u64, ParticipantIndex> {
13497 self.read(cx).user_store().read(cx).participant_indices()
13498 }
13499
13500 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13501 let this = self.read(cx);
13502 let user_ids = this.collaborators().values().map(|c| c.user_id);
13503 this.user_store().read_with(cx, |user_store, cx| {
13504 user_store.participant_names(user_ids, cx)
13505 })
13506 }
13507}
13508
13509pub trait SemanticsProvider {
13510 fn hover(
13511 &self,
13512 buffer: &Model<Buffer>,
13513 position: text::Anchor,
13514 cx: &mut AppContext,
13515 ) -> Option<Task<Vec<project::Hover>>>;
13516
13517 fn inlay_hints(
13518 &self,
13519 buffer_handle: Model<Buffer>,
13520 range: Range<text::Anchor>,
13521 cx: &mut AppContext,
13522 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13523
13524 fn resolve_inlay_hint(
13525 &self,
13526 hint: InlayHint,
13527 buffer_handle: Model<Buffer>,
13528 server_id: LanguageServerId,
13529 cx: &mut AppContext,
13530 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13531
13532 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13533
13534 fn document_highlights(
13535 &self,
13536 buffer: &Model<Buffer>,
13537 position: text::Anchor,
13538 cx: &mut AppContext,
13539 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13540
13541 fn definitions(
13542 &self,
13543 buffer: &Model<Buffer>,
13544 position: text::Anchor,
13545 kind: GotoDefinitionKind,
13546 cx: &mut AppContext,
13547 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13548
13549 fn range_for_rename(
13550 &self,
13551 buffer: &Model<Buffer>,
13552 position: text::Anchor,
13553 cx: &mut AppContext,
13554 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13555
13556 fn perform_rename(
13557 &self,
13558 buffer: &Model<Buffer>,
13559 position: text::Anchor,
13560 new_name: String,
13561 cx: &mut AppContext,
13562 ) -> Option<Task<Result<ProjectTransaction>>>;
13563}
13564
13565pub trait CompletionProvider {
13566 fn completions(
13567 &self,
13568 buffer: &Model<Buffer>,
13569 buffer_position: text::Anchor,
13570 trigger: CompletionContext,
13571 cx: &mut ViewContext<Editor>,
13572 ) -> Task<Result<Vec<Completion>>>;
13573
13574 fn resolve_completions(
13575 &self,
13576 buffer: Model<Buffer>,
13577 completion_indices: Vec<usize>,
13578 completions: Rc<RefCell<Box<[Completion]>>>,
13579 cx: &mut ViewContext<Editor>,
13580 ) -> Task<Result<bool>>;
13581
13582 fn apply_additional_edits_for_completion(
13583 &self,
13584 _buffer: Model<Buffer>,
13585 _completions: Rc<RefCell<Box<[Completion]>>>,
13586 _completion_index: usize,
13587 _push_to_history: bool,
13588 _cx: &mut ViewContext<Editor>,
13589 ) -> Task<Result<Option<language::Transaction>>> {
13590 Task::ready(Ok(None))
13591 }
13592
13593 fn is_completion_trigger(
13594 &self,
13595 buffer: &Model<Buffer>,
13596 position: language::Anchor,
13597 text: &str,
13598 trigger_in_words: bool,
13599 cx: &mut ViewContext<Editor>,
13600 ) -> bool;
13601
13602 fn sort_completions(&self) -> bool {
13603 true
13604 }
13605}
13606
13607pub trait CodeActionProvider {
13608 fn id(&self) -> Arc<str>;
13609
13610 fn code_actions(
13611 &self,
13612 buffer: &Model<Buffer>,
13613 range: Range<text::Anchor>,
13614 cx: &mut WindowContext,
13615 ) -> Task<Result<Vec<CodeAction>>>;
13616
13617 fn apply_code_action(
13618 &self,
13619 buffer_handle: Model<Buffer>,
13620 action: CodeAction,
13621 excerpt_id: ExcerptId,
13622 push_to_history: bool,
13623 cx: &mut WindowContext,
13624 ) -> Task<Result<ProjectTransaction>>;
13625}
13626
13627impl CodeActionProvider for Model<Project> {
13628 fn id(&self) -> Arc<str> {
13629 "project".into()
13630 }
13631
13632 fn code_actions(
13633 &self,
13634 buffer: &Model<Buffer>,
13635 range: Range<text::Anchor>,
13636 cx: &mut WindowContext,
13637 ) -> Task<Result<Vec<CodeAction>>> {
13638 self.update(cx, |project, cx| {
13639 project.code_actions(buffer, range, None, cx)
13640 })
13641 }
13642
13643 fn apply_code_action(
13644 &self,
13645 buffer_handle: Model<Buffer>,
13646 action: CodeAction,
13647 _excerpt_id: ExcerptId,
13648 push_to_history: bool,
13649 cx: &mut WindowContext,
13650 ) -> Task<Result<ProjectTransaction>> {
13651 self.update(cx, |project, cx| {
13652 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13653 })
13654 }
13655}
13656
13657fn snippet_completions(
13658 project: &Project,
13659 buffer: &Model<Buffer>,
13660 buffer_position: text::Anchor,
13661 cx: &mut AppContext,
13662) -> Task<Result<Vec<Completion>>> {
13663 let language = buffer.read(cx).language_at(buffer_position);
13664 let language_name = language.as_ref().map(|language| language.lsp_id());
13665 let snippet_store = project.snippets().read(cx);
13666 let snippets = snippet_store.snippets_for(language_name, cx);
13667
13668 if snippets.is_empty() {
13669 return Task::ready(Ok(vec![]));
13670 }
13671 let snapshot = buffer.read(cx).text_snapshot();
13672 let chars: String = snapshot
13673 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13674 .collect();
13675
13676 let scope = language.map(|language| language.default_scope());
13677 let executor = cx.background_executor().clone();
13678
13679 cx.background_executor().spawn(async move {
13680 let classifier = CharClassifier::new(scope).for_completion(true);
13681 let mut last_word = chars
13682 .chars()
13683 .take_while(|c| classifier.is_word(*c))
13684 .collect::<String>();
13685 last_word = last_word.chars().rev().collect();
13686
13687 if last_word.is_empty() {
13688 return Ok(vec![]);
13689 }
13690
13691 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13692 let to_lsp = |point: &text::Anchor| {
13693 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13694 point_to_lsp(end)
13695 };
13696 let lsp_end = to_lsp(&buffer_position);
13697
13698 let candidates = snippets
13699 .iter()
13700 .enumerate()
13701 .flat_map(|(ix, snippet)| {
13702 snippet
13703 .prefix
13704 .iter()
13705 .map(move |prefix| StringMatchCandidate::new(ix, &prefix))
13706 })
13707 .collect::<Vec<StringMatchCandidate>>();
13708
13709 let mut matches = fuzzy::match_strings(
13710 &candidates,
13711 &last_word,
13712 last_word.chars().any(|c| c.is_uppercase()),
13713 100,
13714 &Default::default(),
13715 executor,
13716 )
13717 .await;
13718
13719 // Remove all candidates where the query's start does not match the start of any word in the candidate
13720 if let Some(query_start) = last_word.chars().next() {
13721 matches.retain(|string_match| {
13722 split_words(&string_match.string).any(|word| {
13723 // Check that the first codepoint of the word as lowercase matches the first
13724 // codepoint of the query as lowercase
13725 word.chars()
13726 .flat_map(|codepoint| codepoint.to_lowercase())
13727 .zip(query_start.to_lowercase())
13728 .all(|(word_cp, query_cp)| word_cp == query_cp)
13729 })
13730 });
13731 }
13732
13733 let matched_strings = matches
13734 .into_iter()
13735 .map(|m| m.string)
13736 .collect::<HashSet<_>>();
13737
13738 let result: Vec<Completion> = snippets
13739 .into_iter()
13740 .filter_map(|snippet| {
13741 let matching_prefix = snippet
13742 .prefix
13743 .iter()
13744 .find(|prefix| matched_strings.contains(*prefix))?;
13745 let start = as_offset - last_word.len();
13746 let start = snapshot.anchor_before(start);
13747 let range = start..buffer_position;
13748 let lsp_start = to_lsp(&start);
13749 let lsp_range = lsp::Range {
13750 start: lsp_start,
13751 end: lsp_end,
13752 };
13753 Some(Completion {
13754 old_range: range,
13755 new_text: snippet.body.clone(),
13756 resolved: false,
13757 label: CodeLabel {
13758 text: matching_prefix.clone(),
13759 runs: vec![],
13760 filter_range: 0..matching_prefix.len(),
13761 },
13762 server_id: LanguageServerId(usize::MAX),
13763 documentation: snippet.description.clone().map(Documentation::SingleLine),
13764 lsp_completion: lsp::CompletionItem {
13765 label: snippet.prefix.first().unwrap().clone(),
13766 kind: Some(CompletionItemKind::SNIPPET),
13767 label_details: snippet.description.as_ref().map(|description| {
13768 lsp::CompletionItemLabelDetails {
13769 detail: Some(description.clone()),
13770 description: None,
13771 }
13772 }),
13773 insert_text_format: Some(InsertTextFormat::SNIPPET),
13774 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13775 lsp::InsertReplaceEdit {
13776 new_text: snippet.body.clone(),
13777 insert: lsp_range,
13778 replace: lsp_range,
13779 },
13780 )),
13781 filter_text: Some(snippet.body.clone()),
13782 sort_text: Some(char::MAX.to_string()),
13783 ..Default::default()
13784 },
13785 confirm: None,
13786 })
13787 })
13788 .collect();
13789
13790 Ok(result)
13791 })
13792}
13793
13794impl CompletionProvider for Model<Project> {
13795 fn completions(
13796 &self,
13797 buffer: &Model<Buffer>,
13798 buffer_position: text::Anchor,
13799 options: CompletionContext,
13800 cx: &mut ViewContext<Editor>,
13801 ) -> Task<Result<Vec<Completion>>> {
13802 self.update(cx, |project, cx| {
13803 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13804 let project_completions = project.completions(buffer, buffer_position, options, cx);
13805 cx.background_executor().spawn(async move {
13806 let mut completions = project_completions.await?;
13807 let snippets_completions = snippets.await?;
13808 completions.extend(snippets_completions);
13809 Ok(completions)
13810 })
13811 })
13812 }
13813
13814 fn resolve_completions(
13815 &self,
13816 buffer: Model<Buffer>,
13817 completion_indices: Vec<usize>,
13818 completions: Rc<RefCell<Box<[Completion]>>>,
13819 cx: &mut ViewContext<Editor>,
13820 ) -> Task<Result<bool>> {
13821 self.update(cx, |project, cx| {
13822 project.lsp_store().update(cx, |lsp_store, cx| {
13823 lsp_store.resolve_completions(buffer, completion_indices, completions, cx)
13824 })
13825 })
13826 }
13827
13828 fn apply_additional_edits_for_completion(
13829 &self,
13830 buffer: Model<Buffer>,
13831 completions: Rc<RefCell<Box<[Completion]>>>,
13832 completion_index: usize,
13833 push_to_history: bool,
13834 cx: &mut ViewContext<Editor>,
13835 ) -> Task<Result<Option<language::Transaction>>> {
13836 self.update(cx, |project, cx| {
13837 project.lsp_store().update(cx, |lsp_store, cx| {
13838 lsp_store.apply_additional_edits_for_completion(
13839 buffer,
13840 completions,
13841 completion_index,
13842 push_to_history,
13843 cx,
13844 )
13845 })
13846 })
13847 }
13848
13849 fn is_completion_trigger(
13850 &self,
13851 buffer: &Model<Buffer>,
13852 position: language::Anchor,
13853 text: &str,
13854 trigger_in_words: bool,
13855 cx: &mut ViewContext<Editor>,
13856 ) -> bool {
13857 let mut chars = text.chars();
13858 let char = if let Some(char) = chars.next() {
13859 char
13860 } else {
13861 return false;
13862 };
13863 if chars.next().is_some() {
13864 return false;
13865 }
13866
13867 let buffer = buffer.read(cx);
13868 let snapshot = buffer.snapshot();
13869 if !snapshot.settings_at(position, cx).show_completions_on_input {
13870 return false;
13871 }
13872 let classifier = snapshot.char_classifier_at(position).for_completion(true);
13873 if trigger_in_words && classifier.is_word(char) {
13874 return true;
13875 }
13876
13877 buffer.completion_triggers().contains(text)
13878 }
13879}
13880
13881impl SemanticsProvider for Model<Project> {
13882 fn hover(
13883 &self,
13884 buffer: &Model<Buffer>,
13885 position: text::Anchor,
13886 cx: &mut AppContext,
13887 ) -> Option<Task<Vec<project::Hover>>> {
13888 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13889 }
13890
13891 fn document_highlights(
13892 &self,
13893 buffer: &Model<Buffer>,
13894 position: text::Anchor,
13895 cx: &mut AppContext,
13896 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13897 Some(self.update(cx, |project, cx| {
13898 project.document_highlights(buffer, position, cx)
13899 }))
13900 }
13901
13902 fn definitions(
13903 &self,
13904 buffer: &Model<Buffer>,
13905 position: text::Anchor,
13906 kind: GotoDefinitionKind,
13907 cx: &mut AppContext,
13908 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13909 Some(self.update(cx, |project, cx| match kind {
13910 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13911 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13912 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13913 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13914 }))
13915 }
13916
13917 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13918 // TODO: make this work for remote projects
13919 self.read(cx)
13920 .language_servers_for_local_buffer(buffer.read(cx), cx)
13921 .any(
13922 |(_, server)| match server.capabilities().inlay_hint_provider {
13923 Some(lsp::OneOf::Left(enabled)) => enabled,
13924 Some(lsp::OneOf::Right(_)) => true,
13925 None => false,
13926 },
13927 )
13928 }
13929
13930 fn inlay_hints(
13931 &self,
13932 buffer_handle: Model<Buffer>,
13933 range: Range<text::Anchor>,
13934 cx: &mut AppContext,
13935 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13936 Some(self.update(cx, |project, cx| {
13937 project.inlay_hints(buffer_handle, range, cx)
13938 }))
13939 }
13940
13941 fn resolve_inlay_hint(
13942 &self,
13943 hint: InlayHint,
13944 buffer_handle: Model<Buffer>,
13945 server_id: LanguageServerId,
13946 cx: &mut AppContext,
13947 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13948 Some(self.update(cx, |project, cx| {
13949 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13950 }))
13951 }
13952
13953 fn range_for_rename(
13954 &self,
13955 buffer: &Model<Buffer>,
13956 position: text::Anchor,
13957 cx: &mut AppContext,
13958 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13959 Some(self.update(cx, |project, cx| {
13960 let buffer = buffer.clone();
13961 let task = project.prepare_rename(buffer.clone(), position, cx);
13962 cx.spawn(|_, mut cx| async move {
13963 Ok(match task.await? {
13964 PrepareRenameResponse::Success(range) => Some(range),
13965 PrepareRenameResponse::InvalidPosition => None,
13966 PrepareRenameResponse::OnlyUnpreparedRenameSupported => {
13967 // Fallback on using TreeSitter info to determine identifier range
13968 buffer.update(&mut cx, |buffer, _| {
13969 let snapshot = buffer.snapshot();
13970 let (range, kind) = snapshot.surrounding_word(position);
13971 if kind != Some(CharKind::Word) {
13972 return None;
13973 }
13974 Some(
13975 snapshot.anchor_before(range.start)
13976 ..snapshot.anchor_after(range.end),
13977 )
13978 })?
13979 }
13980 })
13981 })
13982 }))
13983 }
13984
13985 fn perform_rename(
13986 &self,
13987 buffer: &Model<Buffer>,
13988 position: text::Anchor,
13989 new_name: String,
13990 cx: &mut AppContext,
13991 ) -> Option<Task<Result<ProjectTransaction>>> {
13992 Some(self.update(cx, |project, cx| {
13993 project.perform_rename(buffer.clone(), position, new_name, cx)
13994 }))
13995 }
13996}
13997
13998fn inlay_hint_settings(
13999 location: Anchor,
14000 snapshot: &MultiBufferSnapshot,
14001 cx: &mut ViewContext<Editor>,
14002) -> InlayHintSettings {
14003 let file = snapshot.file_at(location);
14004 let language = snapshot.language_at(location).map(|l| l.name());
14005 language_settings(language, file, cx).inlay_hints
14006}
14007
14008fn consume_contiguous_rows(
14009 contiguous_row_selections: &mut Vec<Selection<Point>>,
14010 selection: &Selection<Point>,
14011 display_map: &DisplaySnapshot,
14012 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
14013) -> (MultiBufferRow, MultiBufferRow) {
14014 contiguous_row_selections.push(selection.clone());
14015 let start_row = MultiBufferRow(selection.start.row);
14016 let mut end_row = ending_row(selection, display_map);
14017
14018 while let Some(next_selection) = selections.peek() {
14019 if next_selection.start.row <= end_row.0 {
14020 end_row = ending_row(next_selection, display_map);
14021 contiguous_row_selections.push(selections.next().unwrap().clone());
14022 } else {
14023 break;
14024 }
14025 }
14026 (start_row, end_row)
14027}
14028
14029fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
14030 if next_selection.end.column > 0 || next_selection.is_empty() {
14031 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
14032 } else {
14033 MultiBufferRow(next_selection.end.row)
14034 }
14035}
14036
14037impl EditorSnapshot {
14038 pub fn remote_selections_in_range<'a>(
14039 &'a self,
14040 range: &'a Range<Anchor>,
14041 collaboration_hub: &dyn CollaborationHub,
14042 cx: &'a AppContext,
14043 ) -> impl 'a + Iterator<Item = RemoteSelection> {
14044 let participant_names = collaboration_hub.user_names(cx);
14045 let participant_indices = collaboration_hub.user_participant_indices(cx);
14046 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
14047 let collaborators_by_replica_id = collaborators_by_peer_id
14048 .iter()
14049 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
14050 .collect::<HashMap<_, _>>();
14051 self.buffer_snapshot
14052 .selections_in_range(range, false)
14053 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
14054 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
14055 let participant_index = participant_indices.get(&collaborator.user_id).copied();
14056 let user_name = participant_names.get(&collaborator.user_id).cloned();
14057 Some(RemoteSelection {
14058 replica_id,
14059 selection,
14060 cursor_shape,
14061 line_mode,
14062 participant_index,
14063 peer_id: collaborator.peer_id,
14064 user_name,
14065 })
14066 })
14067 }
14068
14069 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
14070 self.display_snapshot.buffer_snapshot.language_at(position)
14071 }
14072
14073 pub fn is_focused(&self) -> bool {
14074 self.is_focused
14075 }
14076
14077 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
14078 self.placeholder_text.as_ref()
14079 }
14080
14081 pub fn scroll_position(&self) -> gpui::Point<f32> {
14082 self.scroll_anchor.scroll_position(&self.display_snapshot)
14083 }
14084
14085 fn gutter_dimensions(
14086 &self,
14087 font_id: FontId,
14088 font_size: Pixels,
14089 em_width: Pixels,
14090 em_advance: Pixels,
14091 max_line_number_width: Pixels,
14092 cx: &AppContext,
14093 ) -> GutterDimensions {
14094 if !self.show_gutter {
14095 return GutterDimensions::default();
14096 }
14097 let descent = cx.text_system().descent(font_id, font_size);
14098
14099 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
14100 matches!(
14101 ProjectSettings::get_global(cx).git.git_gutter,
14102 Some(GitGutterSetting::TrackedFiles)
14103 )
14104 });
14105 let gutter_settings = EditorSettings::get_global(cx).gutter;
14106 let show_line_numbers = self
14107 .show_line_numbers
14108 .unwrap_or(gutter_settings.line_numbers);
14109 let line_gutter_width = if show_line_numbers {
14110 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
14111 let min_width_for_number_on_gutter = em_advance * 4.0;
14112 max_line_number_width.max(min_width_for_number_on_gutter)
14113 } else {
14114 0.0.into()
14115 };
14116
14117 let show_code_actions = self
14118 .show_code_actions
14119 .unwrap_or(gutter_settings.code_actions);
14120
14121 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
14122
14123 let git_blame_entries_width =
14124 self.git_blame_gutter_max_author_length
14125 .map(|max_author_length| {
14126 // Length of the author name, but also space for the commit hash,
14127 // the spacing and the timestamp.
14128 let max_char_count = max_author_length
14129 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
14130 + 7 // length of commit sha
14131 + 14 // length of max relative timestamp ("60 minutes ago")
14132 + 4; // gaps and margins
14133
14134 em_advance * max_char_count
14135 });
14136
14137 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
14138 left_padding += if show_code_actions || show_runnables {
14139 em_width * 3.0
14140 } else if show_git_gutter && show_line_numbers {
14141 em_width * 2.0
14142 } else if show_git_gutter || show_line_numbers {
14143 em_width
14144 } else {
14145 px(0.)
14146 };
14147
14148 let right_padding = if gutter_settings.folds && show_line_numbers {
14149 em_width * 4.0
14150 } else if gutter_settings.folds {
14151 em_width * 3.0
14152 } else if show_line_numbers {
14153 em_width
14154 } else {
14155 px(0.)
14156 };
14157
14158 GutterDimensions {
14159 left_padding,
14160 right_padding,
14161 width: line_gutter_width + left_padding + right_padding,
14162 margin: -descent,
14163 git_blame_entries_width,
14164 }
14165 }
14166
14167 pub fn render_crease_toggle(
14168 &self,
14169 buffer_row: MultiBufferRow,
14170 row_contains_cursor: bool,
14171 editor: View<Editor>,
14172 cx: &mut WindowContext,
14173 ) -> Option<AnyElement> {
14174 let folded = self.is_line_folded(buffer_row);
14175 let mut is_foldable = false;
14176
14177 if let Some(crease) = self
14178 .crease_snapshot
14179 .query_row(buffer_row, &self.buffer_snapshot)
14180 {
14181 is_foldable = true;
14182 match crease {
14183 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
14184 if let Some(render_toggle) = render_toggle {
14185 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14186 if folded {
14187 editor.update(cx, |editor, cx| {
14188 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14189 });
14190 } else {
14191 editor.update(cx, |editor, cx| {
14192 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14193 });
14194 }
14195 });
14196 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14197 }
14198 }
14199 }
14200 }
14201
14202 is_foldable |= self.starts_indent(buffer_row);
14203
14204 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14205 Some(
14206 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14207 .toggle_state(folded)
14208 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14209 if folded {
14210 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14211 } else {
14212 this.fold_at(&FoldAt { buffer_row }, cx);
14213 }
14214 }))
14215 .into_any_element(),
14216 )
14217 } else {
14218 None
14219 }
14220 }
14221
14222 pub fn render_crease_trailer(
14223 &self,
14224 buffer_row: MultiBufferRow,
14225 cx: &mut WindowContext,
14226 ) -> Option<AnyElement> {
14227 let folded = self.is_line_folded(buffer_row);
14228 if let Crease::Inline { render_trailer, .. } = self
14229 .crease_snapshot
14230 .query_row(buffer_row, &self.buffer_snapshot)?
14231 {
14232 let render_trailer = render_trailer.as_ref()?;
14233 Some(render_trailer(buffer_row, folded, cx))
14234 } else {
14235 None
14236 }
14237 }
14238}
14239
14240impl Deref for EditorSnapshot {
14241 type Target = DisplaySnapshot;
14242
14243 fn deref(&self) -> &Self::Target {
14244 &self.display_snapshot
14245 }
14246}
14247
14248#[derive(Clone, Debug, PartialEq, Eq)]
14249pub enum EditorEvent {
14250 InputIgnored {
14251 text: Arc<str>,
14252 },
14253 InputHandled {
14254 utf16_range_to_replace: Option<Range<isize>>,
14255 text: Arc<str>,
14256 },
14257 ExcerptsAdded {
14258 buffer: Model<Buffer>,
14259 predecessor: ExcerptId,
14260 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14261 },
14262 ExcerptsRemoved {
14263 ids: Vec<ExcerptId>,
14264 },
14265 BufferFoldToggled {
14266 ids: Vec<ExcerptId>,
14267 folded: bool,
14268 },
14269 ExcerptsEdited {
14270 ids: Vec<ExcerptId>,
14271 },
14272 ExcerptsExpanded {
14273 ids: Vec<ExcerptId>,
14274 },
14275 BufferEdited,
14276 Edited {
14277 transaction_id: clock::Lamport,
14278 },
14279 Reparsed(BufferId),
14280 Focused,
14281 FocusedIn,
14282 Blurred,
14283 DirtyChanged,
14284 Saved,
14285 TitleChanged,
14286 DiffBaseChanged,
14287 SelectionsChanged {
14288 local: bool,
14289 },
14290 ScrollPositionChanged {
14291 local: bool,
14292 autoscroll: bool,
14293 },
14294 Closed,
14295 TransactionUndone {
14296 transaction_id: clock::Lamport,
14297 },
14298 TransactionBegun {
14299 transaction_id: clock::Lamport,
14300 },
14301 Reloaded,
14302 CursorShapeChanged,
14303}
14304
14305impl EventEmitter<EditorEvent> for Editor {}
14306
14307impl FocusableView for Editor {
14308 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14309 self.focus_handle.clone()
14310 }
14311}
14312
14313impl Render for Editor {
14314 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14315 let settings = ThemeSettings::get_global(cx);
14316
14317 let mut text_style = match self.mode {
14318 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14319 color: cx.theme().colors().editor_foreground,
14320 font_family: settings.ui_font.family.clone(),
14321 font_features: settings.ui_font.features.clone(),
14322 font_fallbacks: settings.ui_font.fallbacks.clone(),
14323 font_size: rems(0.875).into(),
14324 font_weight: settings.ui_font.weight,
14325 line_height: relative(settings.buffer_line_height.value()),
14326 ..Default::default()
14327 },
14328 EditorMode::Full => TextStyle {
14329 color: cx.theme().colors().editor_foreground,
14330 font_family: settings.buffer_font.family.clone(),
14331 font_features: settings.buffer_font.features.clone(),
14332 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14333 font_size: settings.buffer_font_size(cx).into(),
14334 font_weight: settings.buffer_font.weight,
14335 line_height: relative(settings.buffer_line_height.value()),
14336 ..Default::default()
14337 },
14338 };
14339 if let Some(text_style_refinement) = &self.text_style_refinement {
14340 text_style.refine(text_style_refinement)
14341 }
14342
14343 let background = match self.mode {
14344 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14345 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14346 EditorMode::Full => cx.theme().colors().editor_background,
14347 };
14348
14349 EditorElement::new(
14350 cx.view(),
14351 EditorStyle {
14352 background,
14353 local_player: cx.theme().players().local(),
14354 text: text_style,
14355 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14356 syntax: cx.theme().syntax().clone(),
14357 status: cx.theme().status().clone(),
14358 inlay_hints_style: make_inlay_hints_style(cx),
14359 inline_completion_styles: make_suggestion_styles(cx),
14360 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14361 },
14362 )
14363 }
14364}
14365
14366impl ViewInputHandler for Editor {
14367 fn text_for_range(
14368 &mut self,
14369 range_utf16: Range<usize>,
14370 adjusted_range: &mut Option<Range<usize>>,
14371 cx: &mut ViewContext<Self>,
14372 ) -> Option<String> {
14373 let snapshot = self.buffer.read(cx).read(cx);
14374 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14375 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14376 if (start.0..end.0) != range_utf16 {
14377 adjusted_range.replace(start.0..end.0);
14378 }
14379 Some(snapshot.text_for_range(start..end).collect())
14380 }
14381
14382 fn selected_text_range(
14383 &mut self,
14384 ignore_disabled_input: bool,
14385 cx: &mut ViewContext<Self>,
14386 ) -> Option<UTF16Selection> {
14387 // Prevent the IME menu from appearing when holding down an alphabetic key
14388 // while input is disabled.
14389 if !ignore_disabled_input && !self.input_enabled {
14390 return None;
14391 }
14392
14393 let selection = self.selections.newest::<OffsetUtf16>(cx);
14394 let range = selection.range();
14395
14396 Some(UTF16Selection {
14397 range: range.start.0..range.end.0,
14398 reversed: selection.reversed,
14399 })
14400 }
14401
14402 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14403 let snapshot = self.buffer.read(cx).read(cx);
14404 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14405 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14406 }
14407
14408 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14409 self.clear_highlights::<InputComposition>(cx);
14410 self.ime_transaction.take();
14411 }
14412
14413 fn replace_text_in_range(
14414 &mut self,
14415 range_utf16: Option<Range<usize>>,
14416 text: &str,
14417 cx: &mut ViewContext<Self>,
14418 ) {
14419 if !self.input_enabled {
14420 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14421 return;
14422 }
14423
14424 self.transact(cx, |this, cx| {
14425 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14426 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14427 Some(this.selection_replacement_ranges(range_utf16, cx))
14428 } else {
14429 this.marked_text_ranges(cx)
14430 };
14431
14432 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14433 let newest_selection_id = this.selections.newest_anchor().id;
14434 this.selections
14435 .all::<OffsetUtf16>(cx)
14436 .iter()
14437 .zip(ranges_to_replace.iter())
14438 .find_map(|(selection, range)| {
14439 if selection.id == newest_selection_id {
14440 Some(
14441 (range.start.0 as isize - selection.head().0 as isize)
14442 ..(range.end.0 as isize - selection.head().0 as isize),
14443 )
14444 } else {
14445 None
14446 }
14447 })
14448 });
14449
14450 cx.emit(EditorEvent::InputHandled {
14451 utf16_range_to_replace: range_to_replace,
14452 text: text.into(),
14453 });
14454
14455 if let Some(new_selected_ranges) = new_selected_ranges {
14456 this.change_selections(None, cx, |selections| {
14457 selections.select_ranges(new_selected_ranges)
14458 });
14459 this.backspace(&Default::default(), cx);
14460 }
14461
14462 this.handle_input(text, cx);
14463 });
14464
14465 if let Some(transaction) = self.ime_transaction {
14466 self.buffer.update(cx, |buffer, cx| {
14467 buffer.group_until_transaction(transaction, cx);
14468 });
14469 }
14470
14471 self.unmark_text(cx);
14472 }
14473
14474 fn replace_and_mark_text_in_range(
14475 &mut self,
14476 range_utf16: Option<Range<usize>>,
14477 text: &str,
14478 new_selected_range_utf16: Option<Range<usize>>,
14479 cx: &mut ViewContext<Self>,
14480 ) {
14481 if !self.input_enabled {
14482 return;
14483 }
14484
14485 let transaction = self.transact(cx, |this, cx| {
14486 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14487 let snapshot = this.buffer.read(cx).read(cx);
14488 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14489 for marked_range in &mut marked_ranges {
14490 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14491 marked_range.start.0 += relative_range_utf16.start;
14492 marked_range.start =
14493 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14494 marked_range.end =
14495 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14496 }
14497 }
14498 Some(marked_ranges)
14499 } else if let Some(range_utf16) = range_utf16 {
14500 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14501 Some(this.selection_replacement_ranges(range_utf16, cx))
14502 } else {
14503 None
14504 };
14505
14506 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14507 let newest_selection_id = this.selections.newest_anchor().id;
14508 this.selections
14509 .all::<OffsetUtf16>(cx)
14510 .iter()
14511 .zip(ranges_to_replace.iter())
14512 .find_map(|(selection, range)| {
14513 if selection.id == newest_selection_id {
14514 Some(
14515 (range.start.0 as isize - selection.head().0 as isize)
14516 ..(range.end.0 as isize - selection.head().0 as isize),
14517 )
14518 } else {
14519 None
14520 }
14521 })
14522 });
14523
14524 cx.emit(EditorEvent::InputHandled {
14525 utf16_range_to_replace: range_to_replace,
14526 text: text.into(),
14527 });
14528
14529 if let Some(ranges) = ranges_to_replace {
14530 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14531 }
14532
14533 let marked_ranges = {
14534 let snapshot = this.buffer.read(cx).read(cx);
14535 this.selections
14536 .disjoint_anchors()
14537 .iter()
14538 .map(|selection| {
14539 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14540 })
14541 .collect::<Vec<_>>()
14542 };
14543
14544 if text.is_empty() {
14545 this.unmark_text(cx);
14546 } else {
14547 this.highlight_text::<InputComposition>(
14548 marked_ranges.clone(),
14549 HighlightStyle {
14550 underline: Some(UnderlineStyle {
14551 thickness: px(1.),
14552 color: None,
14553 wavy: false,
14554 }),
14555 ..Default::default()
14556 },
14557 cx,
14558 );
14559 }
14560
14561 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14562 let use_autoclose = this.use_autoclose;
14563 let use_auto_surround = this.use_auto_surround;
14564 this.set_use_autoclose(false);
14565 this.set_use_auto_surround(false);
14566 this.handle_input(text, cx);
14567 this.set_use_autoclose(use_autoclose);
14568 this.set_use_auto_surround(use_auto_surround);
14569
14570 if let Some(new_selected_range) = new_selected_range_utf16 {
14571 let snapshot = this.buffer.read(cx).read(cx);
14572 let new_selected_ranges = marked_ranges
14573 .into_iter()
14574 .map(|marked_range| {
14575 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14576 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14577 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14578 snapshot.clip_offset_utf16(new_start, Bias::Left)
14579 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14580 })
14581 .collect::<Vec<_>>();
14582
14583 drop(snapshot);
14584 this.change_selections(None, cx, |selections| {
14585 selections.select_ranges(new_selected_ranges)
14586 });
14587 }
14588 });
14589
14590 self.ime_transaction = self.ime_transaction.or(transaction);
14591 if let Some(transaction) = self.ime_transaction {
14592 self.buffer.update(cx, |buffer, cx| {
14593 buffer.group_until_transaction(transaction, cx);
14594 });
14595 }
14596
14597 if self.text_highlights::<InputComposition>(cx).is_none() {
14598 self.ime_transaction.take();
14599 }
14600 }
14601
14602 fn bounds_for_range(
14603 &mut self,
14604 range_utf16: Range<usize>,
14605 element_bounds: gpui::Bounds<Pixels>,
14606 cx: &mut ViewContext<Self>,
14607 ) -> Option<gpui::Bounds<Pixels>> {
14608 let text_layout_details = self.text_layout_details(cx);
14609 let gpui::Point {
14610 x: em_width,
14611 y: line_height,
14612 } = self.character_size(cx);
14613
14614 let snapshot = self.snapshot(cx);
14615 let scroll_position = snapshot.scroll_position();
14616 let scroll_left = scroll_position.x * em_width;
14617
14618 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14619 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14620 + self.gutter_dimensions.width
14621 + self.gutter_dimensions.margin;
14622 let y = line_height * (start.row().as_f32() - scroll_position.y);
14623
14624 Some(Bounds {
14625 origin: element_bounds.origin + point(x, y),
14626 size: size(em_width, line_height),
14627 })
14628 }
14629}
14630
14631trait SelectionExt {
14632 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14633 fn spanned_rows(
14634 &self,
14635 include_end_if_at_line_start: bool,
14636 map: &DisplaySnapshot,
14637 ) -> Range<MultiBufferRow>;
14638}
14639
14640impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14641 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14642 let start = self
14643 .start
14644 .to_point(&map.buffer_snapshot)
14645 .to_display_point(map);
14646 let end = self
14647 .end
14648 .to_point(&map.buffer_snapshot)
14649 .to_display_point(map);
14650 if self.reversed {
14651 end..start
14652 } else {
14653 start..end
14654 }
14655 }
14656
14657 fn spanned_rows(
14658 &self,
14659 include_end_if_at_line_start: bool,
14660 map: &DisplaySnapshot,
14661 ) -> Range<MultiBufferRow> {
14662 let start = self.start.to_point(&map.buffer_snapshot);
14663 let mut end = self.end.to_point(&map.buffer_snapshot);
14664 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14665 end.row -= 1;
14666 }
14667
14668 let buffer_start = map.prev_line_boundary(start).0;
14669 let buffer_end = map.next_line_boundary(end).0;
14670 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14671 }
14672}
14673
14674impl<T: InvalidationRegion> InvalidationStack<T> {
14675 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14676 where
14677 S: Clone + ToOffset,
14678 {
14679 while let Some(region) = self.last() {
14680 let all_selections_inside_invalidation_ranges =
14681 if selections.len() == region.ranges().len() {
14682 selections
14683 .iter()
14684 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14685 .all(|(selection, invalidation_range)| {
14686 let head = selection.head().to_offset(buffer);
14687 invalidation_range.start <= head && invalidation_range.end >= head
14688 })
14689 } else {
14690 false
14691 };
14692
14693 if all_selections_inside_invalidation_ranges {
14694 break;
14695 } else {
14696 self.pop();
14697 }
14698 }
14699 }
14700}
14701
14702impl<T> Default for InvalidationStack<T> {
14703 fn default() -> Self {
14704 Self(Default::default())
14705 }
14706}
14707
14708impl<T> Deref for InvalidationStack<T> {
14709 type Target = Vec<T>;
14710
14711 fn deref(&self) -> &Self::Target {
14712 &self.0
14713 }
14714}
14715
14716impl<T> DerefMut for InvalidationStack<T> {
14717 fn deref_mut(&mut self) -> &mut Self::Target {
14718 &mut self.0
14719 }
14720}
14721
14722impl InvalidationRegion for SnippetState {
14723 fn ranges(&self) -> &[Range<Anchor>] {
14724 &self.ranges[self.active_index]
14725 }
14726}
14727
14728pub fn diagnostic_block_renderer(
14729 diagnostic: Diagnostic,
14730 max_message_rows: Option<u8>,
14731 allow_closing: bool,
14732 _is_valid: bool,
14733) -> RenderBlock {
14734 let (text_without_backticks, code_ranges) =
14735 highlight_diagnostic_message(&diagnostic, max_message_rows);
14736
14737 Arc::new(move |cx: &mut BlockContext| {
14738 let group_id: SharedString = cx.block_id.to_string().into();
14739
14740 let mut text_style = cx.text_style().clone();
14741 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14742 let theme_settings = ThemeSettings::get_global(cx);
14743 text_style.font_family = theme_settings.buffer_font.family.clone();
14744 text_style.font_style = theme_settings.buffer_font.style;
14745 text_style.font_features = theme_settings.buffer_font.features.clone();
14746 text_style.font_weight = theme_settings.buffer_font.weight;
14747
14748 let multi_line_diagnostic = diagnostic.message.contains('\n');
14749
14750 let buttons = |diagnostic: &Diagnostic| {
14751 if multi_line_diagnostic {
14752 v_flex()
14753 } else {
14754 h_flex()
14755 }
14756 .when(allow_closing, |div| {
14757 div.children(diagnostic.is_primary.then(|| {
14758 IconButton::new("close-block", IconName::XCircle)
14759 .icon_color(Color::Muted)
14760 .size(ButtonSize::Compact)
14761 .style(ButtonStyle::Transparent)
14762 .visible_on_hover(group_id.clone())
14763 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14764 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14765 }))
14766 })
14767 .child(
14768 IconButton::new("copy-block", IconName::Copy)
14769 .icon_color(Color::Muted)
14770 .size(ButtonSize::Compact)
14771 .style(ButtonStyle::Transparent)
14772 .visible_on_hover(group_id.clone())
14773 .on_click({
14774 let message = diagnostic.message.clone();
14775 move |_click, cx| {
14776 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14777 }
14778 })
14779 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14780 )
14781 };
14782
14783 let icon_size = buttons(&diagnostic)
14784 .into_any_element()
14785 .layout_as_root(AvailableSpace::min_size(), cx);
14786
14787 h_flex()
14788 .id(cx.block_id)
14789 .group(group_id.clone())
14790 .relative()
14791 .size_full()
14792 .block_mouse_down()
14793 .pl(cx.gutter_dimensions.width)
14794 .w(cx.max_width - cx.gutter_dimensions.full_width())
14795 .child(
14796 div()
14797 .flex()
14798 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14799 .flex_shrink(),
14800 )
14801 .child(buttons(&diagnostic))
14802 .child(div().flex().flex_shrink_0().child(
14803 StyledText::new(text_without_backticks.clone()).with_highlights(
14804 &text_style,
14805 code_ranges.iter().map(|range| {
14806 (
14807 range.clone(),
14808 HighlightStyle {
14809 font_weight: Some(FontWeight::BOLD),
14810 ..Default::default()
14811 },
14812 )
14813 }),
14814 ),
14815 ))
14816 .into_any_element()
14817 })
14818}
14819
14820fn inline_completion_edit_text(
14821 editor_snapshot: &EditorSnapshot,
14822 edits: &Vec<(Range<Anchor>, String)>,
14823 include_deletions: bool,
14824 cx: &WindowContext,
14825) -> InlineCompletionText {
14826 let edit_start = edits
14827 .first()
14828 .unwrap()
14829 .0
14830 .start
14831 .to_display_point(editor_snapshot);
14832
14833 let mut text = String::new();
14834 let mut offset = DisplayPoint::new(edit_start.row(), 0).to_offset(editor_snapshot, Bias::Left);
14835 let mut highlights = Vec::new();
14836 for (old_range, new_text) in edits {
14837 let old_offset_range = old_range.to_offset(&editor_snapshot.buffer_snapshot);
14838 text.extend(
14839 editor_snapshot
14840 .buffer_snapshot
14841 .chunks(offset..old_offset_range.start, false)
14842 .map(|chunk| chunk.text),
14843 );
14844 offset = old_offset_range.end;
14845
14846 let start = text.len();
14847 let color = if include_deletions && new_text.is_empty() {
14848 text.extend(
14849 editor_snapshot
14850 .buffer_snapshot
14851 .chunks(old_offset_range.start..offset, false)
14852 .map(|chunk| chunk.text),
14853 );
14854 cx.theme().status().deleted_background
14855 } else {
14856 text.push_str(new_text);
14857 cx.theme().status().created_background
14858 };
14859 let end = text.len();
14860
14861 highlights.push((
14862 start..end,
14863 HighlightStyle {
14864 background_color: Some(color),
14865 ..Default::default()
14866 },
14867 ));
14868 }
14869
14870 let edit_end = edits
14871 .last()
14872 .unwrap()
14873 .0
14874 .end
14875 .to_display_point(editor_snapshot);
14876 let end_of_line = DisplayPoint::new(edit_end.row(), editor_snapshot.line_len(edit_end.row()))
14877 .to_offset(editor_snapshot, Bias::Right);
14878 text.extend(
14879 editor_snapshot
14880 .buffer_snapshot
14881 .chunks(offset..end_of_line, false)
14882 .map(|chunk| chunk.text),
14883 );
14884
14885 InlineCompletionText::Edit {
14886 text: text.into(),
14887 highlights,
14888 }
14889}
14890
14891pub fn highlight_diagnostic_message(
14892 diagnostic: &Diagnostic,
14893 mut max_message_rows: Option<u8>,
14894) -> (SharedString, Vec<Range<usize>>) {
14895 let mut text_without_backticks = String::new();
14896 let mut code_ranges = Vec::new();
14897
14898 if let Some(source) = &diagnostic.source {
14899 text_without_backticks.push_str(source);
14900 code_ranges.push(0..source.len());
14901 text_without_backticks.push_str(": ");
14902 }
14903
14904 let mut prev_offset = 0;
14905 let mut in_code_block = false;
14906 let has_row_limit = max_message_rows.is_some();
14907 let mut newline_indices = diagnostic
14908 .message
14909 .match_indices('\n')
14910 .filter(|_| has_row_limit)
14911 .map(|(ix, _)| ix)
14912 .fuse()
14913 .peekable();
14914
14915 for (quote_ix, _) in diagnostic
14916 .message
14917 .match_indices('`')
14918 .chain([(diagnostic.message.len(), "")])
14919 {
14920 let mut first_newline_ix = None;
14921 let mut last_newline_ix = None;
14922 while let Some(newline_ix) = newline_indices.peek() {
14923 if *newline_ix < quote_ix {
14924 if first_newline_ix.is_none() {
14925 first_newline_ix = Some(*newline_ix);
14926 }
14927 last_newline_ix = Some(*newline_ix);
14928
14929 if let Some(rows_left) = &mut max_message_rows {
14930 if *rows_left == 0 {
14931 break;
14932 } else {
14933 *rows_left -= 1;
14934 }
14935 }
14936 let _ = newline_indices.next();
14937 } else {
14938 break;
14939 }
14940 }
14941 let prev_len = text_without_backticks.len();
14942 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14943 text_without_backticks.push_str(new_text);
14944 if in_code_block {
14945 code_ranges.push(prev_len..text_without_backticks.len());
14946 }
14947 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14948 in_code_block = !in_code_block;
14949 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14950 text_without_backticks.push_str("...");
14951 break;
14952 }
14953 }
14954
14955 (text_without_backticks.into(), code_ranges)
14956}
14957
14958fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14959 match severity {
14960 DiagnosticSeverity::ERROR => colors.error,
14961 DiagnosticSeverity::WARNING => colors.warning,
14962 DiagnosticSeverity::INFORMATION => colors.info,
14963 DiagnosticSeverity::HINT => colors.info,
14964 _ => colors.ignored,
14965 }
14966}
14967
14968pub fn styled_runs_for_code_label<'a>(
14969 label: &'a CodeLabel,
14970 syntax_theme: &'a theme::SyntaxTheme,
14971) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14972 let fade_out = HighlightStyle {
14973 fade_out: Some(0.35),
14974 ..Default::default()
14975 };
14976
14977 let mut prev_end = label.filter_range.end;
14978 label
14979 .runs
14980 .iter()
14981 .enumerate()
14982 .flat_map(move |(ix, (range, highlight_id))| {
14983 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14984 style
14985 } else {
14986 return Default::default();
14987 };
14988 let mut muted_style = style;
14989 muted_style.highlight(fade_out);
14990
14991 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14992 if range.start >= label.filter_range.end {
14993 if range.start > prev_end {
14994 runs.push((prev_end..range.start, fade_out));
14995 }
14996 runs.push((range.clone(), muted_style));
14997 } else if range.end <= label.filter_range.end {
14998 runs.push((range.clone(), style));
14999 } else {
15000 runs.push((range.start..label.filter_range.end, style));
15001 runs.push((label.filter_range.end..range.end, muted_style));
15002 }
15003 prev_end = cmp::max(prev_end, range.end);
15004
15005 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
15006 runs.push((prev_end..label.text.len(), fade_out));
15007 }
15008
15009 runs
15010 })
15011}
15012
15013pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
15014 let mut prev_index = 0;
15015 let mut prev_codepoint: Option<char> = None;
15016 text.char_indices()
15017 .chain([(text.len(), '\0')])
15018 .filter_map(move |(index, codepoint)| {
15019 let prev_codepoint = prev_codepoint.replace(codepoint)?;
15020 let is_boundary = index == text.len()
15021 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
15022 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
15023 if is_boundary {
15024 let chunk = &text[prev_index..index];
15025 prev_index = index;
15026 Some(chunk)
15027 } else {
15028 None
15029 }
15030 })
15031}
15032
15033pub trait RangeToAnchorExt: Sized {
15034 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
15035
15036 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
15037 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
15038 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
15039 }
15040}
15041
15042impl<T: ToOffset> RangeToAnchorExt for Range<T> {
15043 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
15044 let start_offset = self.start.to_offset(snapshot);
15045 let end_offset = self.end.to_offset(snapshot);
15046 if start_offset == end_offset {
15047 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
15048 } else {
15049 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
15050 }
15051 }
15052}
15053
15054pub trait RowExt {
15055 fn as_f32(&self) -> f32;
15056
15057 fn next_row(&self) -> Self;
15058
15059 fn previous_row(&self) -> Self;
15060
15061 fn minus(&self, other: Self) -> u32;
15062}
15063
15064impl RowExt for DisplayRow {
15065 fn as_f32(&self) -> f32 {
15066 self.0 as f32
15067 }
15068
15069 fn next_row(&self) -> Self {
15070 Self(self.0 + 1)
15071 }
15072
15073 fn previous_row(&self) -> Self {
15074 Self(self.0.saturating_sub(1))
15075 }
15076
15077 fn minus(&self, other: Self) -> u32 {
15078 self.0 - other.0
15079 }
15080}
15081
15082impl RowExt for MultiBufferRow {
15083 fn as_f32(&self) -> f32 {
15084 self.0 as f32
15085 }
15086
15087 fn next_row(&self) -> Self {
15088 Self(self.0 + 1)
15089 }
15090
15091 fn previous_row(&self) -> Self {
15092 Self(self.0.saturating_sub(1))
15093 }
15094
15095 fn minus(&self, other: Self) -> u32 {
15096 self.0 - other.0
15097 }
15098}
15099
15100trait RowRangeExt {
15101 type Row;
15102
15103 fn len(&self) -> usize;
15104
15105 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
15106}
15107
15108impl RowRangeExt for Range<MultiBufferRow> {
15109 type Row = MultiBufferRow;
15110
15111 fn len(&self) -> usize {
15112 (self.end.0 - self.start.0) as usize
15113 }
15114
15115 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
15116 (self.start.0..self.end.0).map(MultiBufferRow)
15117 }
15118}
15119
15120impl RowRangeExt for Range<DisplayRow> {
15121 type Row = DisplayRow;
15122
15123 fn len(&self) -> usize {
15124 (self.end.0 - self.start.0) as usize
15125 }
15126
15127 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
15128 (self.start.0..self.end.0).map(DisplayRow)
15129 }
15130}
15131
15132fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
15133 if hunk.diff_base_byte_range.is_empty() {
15134 DiffHunkStatus::Added
15135 } else if hunk.row_range.is_empty() {
15136 DiffHunkStatus::Removed
15137 } else {
15138 DiffHunkStatus::Modified
15139 }
15140}
15141
15142/// If select range has more than one line, we
15143/// just point the cursor to range.start.
15144fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
15145 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
15146 range
15147 } else {
15148 range.start..range.start
15149 }
15150}
15151
15152pub struct KillRing(ClipboardItem);
15153impl Global for KillRing {}
15154
15155const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);