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 || buffer.read(cx).is_empty())
4516 {
4517 self.discard_inline_completion(false, cx);
4518 return None;
4519 }
4520
4521 self.update_visible_inline_completion(cx);
4522 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4523 Some(())
4524 }
4525
4526 fn cycle_inline_completion(
4527 &mut self,
4528 direction: Direction,
4529 cx: &mut ViewContext<Self>,
4530 ) -> Option<()> {
4531 let provider = self.inline_completion_provider()?;
4532 let cursor = self.selections.newest_anchor().head();
4533 let (buffer, cursor_buffer_position) =
4534 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4535 if !self.enable_inline_completions
4536 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4537 {
4538 return None;
4539 }
4540
4541 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4542 self.update_visible_inline_completion(cx);
4543
4544 Some(())
4545 }
4546
4547 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4548 if !self.has_active_inline_completion() {
4549 self.refresh_inline_completion(false, true, cx);
4550 return;
4551 }
4552
4553 self.update_visible_inline_completion(cx);
4554 }
4555
4556 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4557 self.show_cursor_names(cx);
4558 }
4559
4560 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4561 self.show_cursor_names = true;
4562 cx.notify();
4563 cx.spawn(|this, mut cx| async move {
4564 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4565 this.update(&mut cx, |this, cx| {
4566 this.show_cursor_names = false;
4567 cx.notify()
4568 })
4569 .ok()
4570 })
4571 .detach();
4572 }
4573
4574 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4575 if self.has_active_inline_completion() {
4576 self.cycle_inline_completion(Direction::Next, cx);
4577 } else {
4578 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4579 if is_copilot_disabled {
4580 cx.propagate();
4581 }
4582 }
4583 }
4584
4585 pub fn previous_inline_completion(
4586 &mut self,
4587 _: &PreviousInlineCompletion,
4588 cx: &mut ViewContext<Self>,
4589 ) {
4590 if self.has_active_inline_completion() {
4591 self.cycle_inline_completion(Direction::Prev, cx);
4592 } else {
4593 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4594 if is_copilot_disabled {
4595 cx.propagate();
4596 }
4597 }
4598 }
4599
4600 pub fn accept_inline_completion(
4601 &mut self,
4602 _: &AcceptInlineCompletion,
4603 cx: &mut ViewContext<Self>,
4604 ) {
4605 let buffer = self.buffer.read(cx);
4606 let snapshot = buffer.snapshot(cx);
4607 let selection = self.selections.newest_adjusted(cx);
4608 let cursor = selection.head();
4609 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
4610 let suggested_indents = snapshot.suggested_indents([cursor.row], cx);
4611 if let Some(suggested_indent) = suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
4612 {
4613 if cursor.column < suggested_indent.len
4614 && cursor.column <= current_indent.len
4615 && current_indent.len <= suggested_indent.len
4616 {
4617 self.tab(&Default::default(), cx);
4618 return;
4619 }
4620 }
4621
4622 if self.show_inline_completions_in_menu(cx) {
4623 self.hide_context_menu(cx);
4624 }
4625
4626 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4627 return;
4628 };
4629
4630 self.report_inline_completion_event(true, cx);
4631
4632 match &active_inline_completion.completion {
4633 InlineCompletion::Move(position) => {
4634 let position = *position;
4635 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4636 selections.select_anchor_ranges([position..position]);
4637 });
4638 }
4639 InlineCompletion::Edit(edits) => {
4640 if let Some(provider) = self.inline_completion_provider() {
4641 provider.accept(cx);
4642 }
4643
4644 let snapshot = self.buffer.read(cx).snapshot(cx);
4645 let last_edit_end = edits.last().unwrap().0.end.bias_right(&snapshot);
4646
4647 self.buffer.update(cx, |buffer, cx| {
4648 buffer.edit(edits.iter().cloned(), None, cx)
4649 });
4650
4651 self.change_selections(None, cx, |s| {
4652 s.select_anchor_ranges([last_edit_end..last_edit_end])
4653 });
4654
4655 self.update_visible_inline_completion(cx);
4656 if self.active_inline_completion.is_none() {
4657 self.refresh_inline_completion(true, true, cx);
4658 }
4659
4660 cx.notify();
4661 }
4662 }
4663 }
4664
4665 pub fn accept_partial_inline_completion(
4666 &mut self,
4667 _: &AcceptPartialInlineCompletion,
4668 cx: &mut ViewContext<Self>,
4669 ) {
4670 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4671 return;
4672 };
4673 if self.selections.count() != 1 {
4674 return;
4675 }
4676
4677 self.report_inline_completion_event(true, cx);
4678
4679 match &active_inline_completion.completion {
4680 InlineCompletion::Move(position) => {
4681 let position = *position;
4682 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4683 selections.select_anchor_ranges([position..position]);
4684 });
4685 }
4686 InlineCompletion::Edit(edits) => {
4687 if edits.len() == 1 && edits[0].0.start == edits[0].0.end {
4688 let text = edits[0].1.as_str();
4689 let mut partial_completion = text
4690 .chars()
4691 .by_ref()
4692 .take_while(|c| c.is_alphabetic())
4693 .collect::<String>();
4694 if partial_completion.is_empty() {
4695 partial_completion = text
4696 .chars()
4697 .by_ref()
4698 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4699 .collect::<String>();
4700 }
4701
4702 cx.emit(EditorEvent::InputHandled {
4703 utf16_range_to_replace: None,
4704 text: partial_completion.clone().into(),
4705 });
4706
4707 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4708
4709 self.refresh_inline_completion(true, true, cx);
4710 cx.notify();
4711 }
4712 }
4713 }
4714 }
4715
4716 fn discard_inline_completion(
4717 &mut self,
4718 should_report_inline_completion_event: bool,
4719 cx: &mut ViewContext<Self>,
4720 ) -> bool {
4721 if should_report_inline_completion_event {
4722 self.report_inline_completion_event(false, cx);
4723 }
4724
4725 if let Some(provider) = self.inline_completion_provider() {
4726 provider.discard(cx);
4727 }
4728
4729 self.take_active_inline_completion(cx).is_some()
4730 }
4731
4732 fn report_inline_completion_event(&self, accepted: bool, cx: &AppContext) {
4733 let Some(provider) = self.inline_completion_provider() else {
4734 return;
4735 };
4736 let Some(project) = self.project.as_ref() else {
4737 return;
4738 };
4739 let Some((_, buffer, _)) = self
4740 .buffer
4741 .read(cx)
4742 .excerpt_containing(self.selections.newest_anchor().head(), cx)
4743 else {
4744 return;
4745 };
4746
4747 let project = project.read(cx);
4748 let extension = buffer
4749 .read(cx)
4750 .file()
4751 .and_then(|file| Some(file.path().extension()?.to_string_lossy().to_string()));
4752 project.client().telemetry().report_inline_completion_event(
4753 provider.name().into(),
4754 accepted,
4755 extension,
4756 );
4757 }
4758
4759 pub fn has_active_inline_completion(&self) -> bool {
4760 self.active_inline_completion.is_some()
4761 }
4762
4763 fn take_active_inline_completion(
4764 &mut self,
4765 cx: &mut ViewContext<Self>,
4766 ) -> Option<InlineCompletion> {
4767 let active_inline_completion = self.active_inline_completion.take()?;
4768 self.splice_inlays(active_inline_completion.inlay_ids, Default::default(), cx);
4769 self.clear_highlights::<InlineCompletionHighlight>(cx);
4770 Some(active_inline_completion.completion)
4771 }
4772
4773 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4774 let selection = self.selections.newest_anchor();
4775 let cursor = selection.head();
4776 let multibuffer = self.buffer.read(cx).snapshot(cx);
4777 let offset_selection = selection.map(|endpoint| endpoint.to_offset(&multibuffer));
4778 let excerpt_id = cursor.excerpt_id;
4779
4780 let completions_menu_has_precedence = !self.show_inline_completions_in_menu(cx)
4781 && (self.context_menu.borrow().is_some()
4782 || (!self.completion_tasks.is_empty() && !self.has_active_inline_completion()));
4783 if completions_menu_has_precedence
4784 || !offset_selection.is_empty()
4785 || self
4786 .active_inline_completion
4787 .as_ref()
4788 .map_or(false, |completion| {
4789 let invalidation_range = completion.invalidation_range.to_offset(&multibuffer);
4790 let invalidation_range = invalidation_range.start..=invalidation_range.end;
4791 !invalidation_range.contains(&offset_selection.head())
4792 })
4793 {
4794 self.discard_inline_completion(false, cx);
4795 return None;
4796 }
4797
4798 self.take_active_inline_completion(cx);
4799 let provider = self.inline_completion_provider()?;
4800
4801 let (buffer, cursor_buffer_position) =
4802 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4803
4804 let completion = provider.suggest(&buffer, cursor_buffer_position, cx)?;
4805 let edits = completion
4806 .edits
4807 .into_iter()
4808 .flat_map(|(range, new_text)| {
4809 let start = multibuffer.anchor_in_excerpt(excerpt_id, range.start)?;
4810 let end = multibuffer.anchor_in_excerpt(excerpt_id, range.end)?;
4811 Some((start..end, new_text))
4812 })
4813 .collect::<Vec<_>>();
4814 if edits.is_empty() {
4815 return None;
4816 }
4817
4818 let first_edit_start = edits.first().unwrap().0.start;
4819 let edit_start_row = first_edit_start
4820 .to_point(&multibuffer)
4821 .row
4822 .saturating_sub(2);
4823
4824 let last_edit_end = edits.last().unwrap().0.end;
4825 let edit_end_row = cmp::min(
4826 multibuffer.max_point().row,
4827 last_edit_end.to_point(&multibuffer).row + 2,
4828 );
4829
4830 let cursor_row = cursor.to_point(&multibuffer).row;
4831
4832 let mut inlay_ids = Vec::new();
4833 let invalidation_row_range;
4834 let completion;
4835 if cursor_row < edit_start_row {
4836 invalidation_row_range = cursor_row..edit_end_row;
4837 completion = InlineCompletion::Move(first_edit_start);
4838 } else if cursor_row > edit_end_row {
4839 invalidation_row_range = edit_start_row..cursor_row;
4840 completion = InlineCompletion::Move(first_edit_start);
4841 } else {
4842 if edits
4843 .iter()
4844 .all(|(range, _)| range.to_offset(&multibuffer).is_empty())
4845 {
4846 let mut inlays = Vec::new();
4847 for (range, new_text) in &edits {
4848 let inlay = Inlay::inline_completion(
4849 post_inc(&mut self.next_inlay_id),
4850 range.start,
4851 new_text.as_str(),
4852 );
4853 inlay_ids.push(inlay.id);
4854 inlays.push(inlay);
4855 }
4856
4857 self.splice_inlays(vec![], inlays, cx);
4858 } else {
4859 let background_color = cx.theme().status().deleted_background;
4860 self.highlight_text::<InlineCompletionHighlight>(
4861 edits.iter().map(|(range, _)| range.clone()).collect(),
4862 HighlightStyle {
4863 background_color: Some(background_color),
4864 ..Default::default()
4865 },
4866 cx,
4867 );
4868 }
4869
4870 invalidation_row_range = edit_start_row..edit_end_row;
4871 completion = InlineCompletion::Edit(edits);
4872 };
4873
4874 let invalidation_range = multibuffer
4875 .anchor_before(Point::new(invalidation_row_range.start, 0))
4876 ..multibuffer.anchor_after(Point::new(
4877 invalidation_row_range.end,
4878 multibuffer.line_len(MultiBufferRow(invalidation_row_range.end)),
4879 ));
4880
4881 self.active_inline_completion = Some(InlineCompletionState {
4882 inlay_ids,
4883 completion,
4884 invalidation_range,
4885 });
4886
4887 if self.show_inline_completions_in_menu(cx) && self.has_active_completions_menu() {
4888 if let Some(hint) = self.inline_completion_menu_hint(cx) {
4889 match self.context_menu.borrow_mut().as_mut() {
4890 Some(CodeContextMenu::Completions(menu)) => {
4891 menu.show_inline_completion_hint(hint);
4892 }
4893 _ => {}
4894 }
4895 }
4896 }
4897
4898 cx.notify();
4899
4900 Some(())
4901 }
4902
4903 fn inline_completion_menu_hint(
4904 &mut self,
4905 cx: &mut ViewContext<Self>,
4906 ) -> Option<InlineCompletionMenuHint> {
4907 if self.has_active_inline_completion() {
4908 let provider_name = self.inline_completion_provider()?.display_name();
4909 let editor_snapshot = self.snapshot(cx);
4910
4911 let text = match &self.active_inline_completion.as_ref()?.completion {
4912 InlineCompletion::Edit(edits) => {
4913 inline_completion_edit_text(&editor_snapshot, edits, true, cx)
4914 }
4915 InlineCompletion::Move(target) => {
4916 let target_point =
4917 target.to_point(&editor_snapshot.display_snapshot.buffer_snapshot);
4918 let target_line = target_point.row + 1;
4919 InlineCompletionText::Move(
4920 format!("Jump to edit in line {}", target_line).into(),
4921 )
4922 }
4923 };
4924
4925 Some(InlineCompletionMenuHint {
4926 provider_name,
4927 text,
4928 })
4929 } else {
4930 None
4931 }
4932 }
4933
4934 pub fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4935 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4936 }
4937
4938 fn show_inline_completions_in_menu(&self, cx: &AppContext) -> bool {
4939 EditorSettings::get_global(cx).show_inline_completions_in_menu
4940 && self
4941 .inline_completion_provider()
4942 .map_or(false, |provider| provider.show_completions_in_menu())
4943 }
4944
4945 fn render_code_actions_indicator(
4946 &self,
4947 _style: &EditorStyle,
4948 row: DisplayRow,
4949 is_active: bool,
4950 cx: &mut ViewContext<Self>,
4951 ) -> Option<IconButton> {
4952 if self.available_code_actions.is_some() {
4953 Some(
4954 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4955 .shape(ui::IconButtonShape::Square)
4956 .icon_size(IconSize::XSmall)
4957 .icon_color(Color::Muted)
4958 .toggle_state(is_active)
4959 .tooltip({
4960 let focus_handle = self.focus_handle.clone();
4961 move |cx| {
4962 Tooltip::for_action_in(
4963 "Toggle Code Actions",
4964 &ToggleCodeActions {
4965 deployed_from_indicator: None,
4966 },
4967 &focus_handle,
4968 cx,
4969 )
4970 }
4971 })
4972 .on_click(cx.listener(move |editor, _e, cx| {
4973 editor.focus(cx);
4974 editor.toggle_code_actions(
4975 &ToggleCodeActions {
4976 deployed_from_indicator: Some(row),
4977 },
4978 cx,
4979 );
4980 })),
4981 )
4982 } else {
4983 None
4984 }
4985 }
4986
4987 fn clear_tasks(&mut self) {
4988 self.tasks.clear()
4989 }
4990
4991 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
4992 if self.tasks.insert(key, value).is_some() {
4993 // This case should hopefully be rare, but just in case...
4994 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4995 }
4996 }
4997
4998 fn build_tasks_context(
4999 project: &Model<Project>,
5000 buffer: &Model<Buffer>,
5001 buffer_row: u32,
5002 tasks: &Arc<RunnableTasks>,
5003 cx: &mut ViewContext<Self>,
5004 ) -> Task<Option<task::TaskContext>> {
5005 let position = Point::new(buffer_row, tasks.column);
5006 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5007 let location = Location {
5008 buffer: buffer.clone(),
5009 range: range_start..range_start,
5010 };
5011 // Fill in the environmental variables from the tree-sitter captures
5012 let mut captured_task_variables = TaskVariables::default();
5013 for (capture_name, value) in tasks.extra_variables.clone() {
5014 captured_task_variables.insert(
5015 task::VariableName::Custom(capture_name.into()),
5016 value.clone(),
5017 );
5018 }
5019 project.update(cx, |project, cx| {
5020 project.task_store().update(cx, |task_store, cx| {
5021 task_store.task_context_for_location(captured_task_variables, location, cx)
5022 })
5023 })
5024 }
5025
5026 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5027 let Some((workspace, _)) = self.workspace.clone() else {
5028 return;
5029 };
5030 let Some(project) = self.project.clone() else {
5031 return;
5032 };
5033
5034 // Try to find a closest, enclosing node using tree-sitter that has a
5035 // task
5036 let Some((buffer, buffer_row, tasks)) = self
5037 .find_enclosing_node_task(cx)
5038 // Or find the task that's closest in row-distance.
5039 .or_else(|| self.find_closest_task(cx))
5040 else {
5041 return;
5042 };
5043
5044 let reveal_strategy = action.reveal;
5045 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5046 cx.spawn(|_, mut cx| async move {
5047 let context = task_context.await?;
5048 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5049
5050 let resolved = resolved_task.resolved.as_mut()?;
5051 resolved.reveal = reveal_strategy;
5052
5053 workspace
5054 .update(&mut cx, |workspace, cx| {
5055 workspace::tasks::schedule_resolved_task(
5056 workspace,
5057 task_source_kind,
5058 resolved_task,
5059 false,
5060 cx,
5061 );
5062 })
5063 .ok()
5064 })
5065 .detach();
5066 }
5067
5068 fn find_closest_task(
5069 &mut self,
5070 cx: &mut ViewContext<Self>,
5071 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5072 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5073
5074 let ((buffer_id, row), tasks) = self
5075 .tasks
5076 .iter()
5077 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5078
5079 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5080 let tasks = Arc::new(tasks.to_owned());
5081 Some((buffer, *row, tasks))
5082 }
5083
5084 fn find_enclosing_node_task(
5085 &mut self,
5086 cx: &mut ViewContext<Self>,
5087 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5088 let snapshot = self.buffer.read(cx).snapshot(cx);
5089 let offset = self.selections.newest::<usize>(cx).head();
5090 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5091 let buffer_id = excerpt.buffer().remote_id();
5092
5093 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5094 let mut cursor = layer.node().walk();
5095
5096 while cursor.goto_first_child_for_byte(offset).is_some() {
5097 if cursor.node().end_byte() == offset {
5098 cursor.goto_next_sibling();
5099 }
5100 }
5101
5102 // Ascend to the smallest ancestor that contains the range and has a task.
5103 loop {
5104 let node = cursor.node();
5105 let node_range = node.byte_range();
5106 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5107
5108 // Check if this node contains our offset
5109 if node_range.start <= offset && node_range.end >= offset {
5110 // If it contains offset, check for task
5111 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5112 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5113 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5114 }
5115 }
5116
5117 if !cursor.goto_parent() {
5118 break;
5119 }
5120 }
5121 None
5122 }
5123
5124 fn render_run_indicator(
5125 &self,
5126 _style: &EditorStyle,
5127 is_active: bool,
5128 row: DisplayRow,
5129 cx: &mut ViewContext<Self>,
5130 ) -> IconButton {
5131 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5132 .shape(ui::IconButtonShape::Square)
5133 .icon_size(IconSize::XSmall)
5134 .icon_color(Color::Muted)
5135 .toggle_state(is_active)
5136 .on_click(cx.listener(move |editor, _e, cx| {
5137 editor.focus(cx);
5138 editor.toggle_code_actions(
5139 &ToggleCodeActions {
5140 deployed_from_indicator: Some(row),
5141 },
5142 cx,
5143 );
5144 }))
5145 }
5146
5147 #[cfg(any(feature = "test-support", test))]
5148 pub fn context_menu_visible(&self) -> bool {
5149 self.context_menu
5150 .borrow()
5151 .as_ref()
5152 .map_or(false, |menu| menu.visible())
5153 }
5154
5155 #[cfg(feature = "test-support")]
5156 pub fn context_menu_contains_inline_completion(&self) -> bool {
5157 self.context_menu
5158 .borrow()
5159 .as_ref()
5160 .map_or(false, |menu| match menu {
5161 CodeContextMenu::Completions(menu) => {
5162 menu.entries.borrow().first().map_or(false, |entry| {
5163 matches!(entry, CompletionEntry::InlineCompletionHint(_))
5164 })
5165 }
5166 CodeContextMenu::CodeActions(_) => false,
5167 })
5168 }
5169
5170 fn context_menu_origin(&self, cursor_position: DisplayPoint) -> Option<ContextMenuOrigin> {
5171 self.context_menu
5172 .borrow()
5173 .as_ref()
5174 .map(|menu| menu.origin(cursor_position))
5175 }
5176
5177 fn render_context_menu(
5178 &self,
5179 style: &EditorStyle,
5180 max_height_in_lines: u32,
5181 cx: &mut ViewContext<Editor>,
5182 ) -> Option<AnyElement> {
5183 self.context_menu.borrow().as_ref().and_then(|menu| {
5184 if menu.visible() {
5185 Some(menu.render(style, max_height_in_lines, cx))
5186 } else {
5187 None
5188 }
5189 })
5190 }
5191
5192 fn render_context_menu_aside(
5193 &self,
5194 style: &EditorStyle,
5195 max_size: Size<Pixels>,
5196 cx: &mut ViewContext<Editor>,
5197 ) -> Option<AnyElement> {
5198 self.context_menu.borrow().as_ref().and_then(|menu| {
5199 if menu.visible() {
5200 menu.render_aside(
5201 style,
5202 max_size,
5203 self.workspace.as_ref().map(|(w, _)| w.clone()),
5204 cx,
5205 )
5206 } else {
5207 None
5208 }
5209 })
5210 }
5211
5212 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<CodeContextMenu> {
5213 cx.notify();
5214 self.completion_tasks.clear();
5215 let context_menu = self.context_menu.borrow_mut().take();
5216 if context_menu.is_some() && !self.show_inline_completions_in_menu(cx) {
5217 self.update_visible_inline_completion(cx);
5218 }
5219 context_menu
5220 }
5221
5222 fn show_snippet_choices(
5223 &mut self,
5224 choices: &Vec<String>,
5225 selection: Range<Anchor>,
5226 cx: &mut ViewContext<Self>,
5227 ) {
5228 if selection.start.buffer_id.is_none() {
5229 return;
5230 }
5231 let buffer_id = selection.start.buffer_id.unwrap();
5232 let buffer = self.buffer().read(cx).buffer(buffer_id);
5233 let id = post_inc(&mut self.next_completion_id);
5234
5235 if let Some(buffer) = buffer {
5236 *self.context_menu.borrow_mut() = Some(CodeContextMenu::Completions(
5237 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
5238 ));
5239 }
5240 }
5241
5242 pub fn insert_snippet(
5243 &mut self,
5244 insertion_ranges: &[Range<usize>],
5245 snippet: Snippet,
5246 cx: &mut ViewContext<Self>,
5247 ) -> Result<()> {
5248 struct Tabstop<T> {
5249 is_end_tabstop: bool,
5250 ranges: Vec<Range<T>>,
5251 choices: Option<Vec<String>>,
5252 }
5253
5254 let tabstops = self.buffer.update(cx, |buffer, cx| {
5255 let snippet_text: Arc<str> = snippet.text.clone().into();
5256 buffer.edit(
5257 insertion_ranges
5258 .iter()
5259 .cloned()
5260 .map(|range| (range, snippet_text.clone())),
5261 Some(AutoindentMode::EachLine),
5262 cx,
5263 );
5264
5265 let snapshot = &*buffer.read(cx);
5266 let snippet = &snippet;
5267 snippet
5268 .tabstops
5269 .iter()
5270 .map(|tabstop| {
5271 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5272 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5273 });
5274 let mut tabstop_ranges = tabstop
5275 .ranges
5276 .iter()
5277 .flat_map(|tabstop_range| {
5278 let mut delta = 0_isize;
5279 insertion_ranges.iter().map(move |insertion_range| {
5280 let insertion_start = insertion_range.start as isize + delta;
5281 delta +=
5282 snippet.text.len() as isize - insertion_range.len() as isize;
5283
5284 let start = ((insertion_start + tabstop_range.start) as usize)
5285 .min(snapshot.len());
5286 let end = ((insertion_start + tabstop_range.end) as usize)
5287 .min(snapshot.len());
5288 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5289 })
5290 })
5291 .collect::<Vec<_>>();
5292 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5293
5294 Tabstop {
5295 is_end_tabstop,
5296 ranges: tabstop_ranges,
5297 choices: tabstop.choices.clone(),
5298 }
5299 })
5300 .collect::<Vec<_>>()
5301 });
5302 if let Some(tabstop) = tabstops.first() {
5303 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5304 s.select_ranges(tabstop.ranges.iter().cloned());
5305 });
5306
5307 if let Some(choices) = &tabstop.choices {
5308 if let Some(selection) = tabstop.ranges.first() {
5309 self.show_snippet_choices(choices, selection.clone(), cx)
5310 }
5311 }
5312
5313 // If we're already at the last tabstop and it's at the end of the snippet,
5314 // we're done, we don't need to keep the state around.
5315 if !tabstop.is_end_tabstop {
5316 let choices = tabstops
5317 .iter()
5318 .map(|tabstop| tabstop.choices.clone())
5319 .collect();
5320
5321 let ranges = tabstops
5322 .into_iter()
5323 .map(|tabstop| tabstop.ranges)
5324 .collect::<Vec<_>>();
5325
5326 self.snippet_stack.push(SnippetState {
5327 active_index: 0,
5328 ranges,
5329 choices,
5330 });
5331 }
5332
5333 // Check whether the just-entered snippet ends with an auto-closable bracket.
5334 if self.autoclose_regions.is_empty() {
5335 let snapshot = self.buffer.read(cx).snapshot(cx);
5336 for selection in &mut self.selections.all::<Point>(cx) {
5337 let selection_head = selection.head();
5338 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5339 continue;
5340 };
5341
5342 let mut bracket_pair = None;
5343 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5344 let prev_chars = snapshot
5345 .reversed_chars_at(selection_head)
5346 .collect::<String>();
5347 for (pair, enabled) in scope.brackets() {
5348 if enabled
5349 && pair.close
5350 && prev_chars.starts_with(pair.start.as_str())
5351 && next_chars.starts_with(pair.end.as_str())
5352 {
5353 bracket_pair = Some(pair.clone());
5354 break;
5355 }
5356 }
5357 if let Some(pair) = bracket_pair {
5358 let start = snapshot.anchor_after(selection_head);
5359 let end = snapshot.anchor_after(selection_head);
5360 self.autoclose_regions.push(AutocloseRegion {
5361 selection_id: selection.id,
5362 range: start..end,
5363 pair,
5364 });
5365 }
5366 }
5367 }
5368 }
5369 Ok(())
5370 }
5371
5372 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5373 self.move_to_snippet_tabstop(Bias::Right, cx)
5374 }
5375
5376 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5377 self.move_to_snippet_tabstop(Bias::Left, cx)
5378 }
5379
5380 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5381 if let Some(mut snippet) = self.snippet_stack.pop() {
5382 match bias {
5383 Bias::Left => {
5384 if snippet.active_index > 0 {
5385 snippet.active_index -= 1;
5386 } else {
5387 self.snippet_stack.push(snippet);
5388 return false;
5389 }
5390 }
5391 Bias::Right => {
5392 if snippet.active_index + 1 < snippet.ranges.len() {
5393 snippet.active_index += 1;
5394 } else {
5395 self.snippet_stack.push(snippet);
5396 return false;
5397 }
5398 }
5399 }
5400 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5401 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5402 s.select_anchor_ranges(current_ranges.iter().cloned())
5403 });
5404
5405 if let Some(choices) = &snippet.choices[snippet.active_index] {
5406 if let Some(selection) = current_ranges.first() {
5407 self.show_snippet_choices(&choices, selection.clone(), cx);
5408 }
5409 }
5410
5411 // If snippet state is not at the last tabstop, push it back on the stack
5412 if snippet.active_index + 1 < snippet.ranges.len() {
5413 self.snippet_stack.push(snippet);
5414 }
5415 return true;
5416 }
5417 }
5418
5419 false
5420 }
5421
5422 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5423 self.transact(cx, |this, cx| {
5424 this.select_all(&SelectAll, cx);
5425 this.insert("", cx);
5426 });
5427 }
5428
5429 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5430 self.transact(cx, |this, cx| {
5431 this.select_autoclose_pair(cx);
5432 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5433 if !this.linked_edit_ranges.is_empty() {
5434 let selections = this.selections.all::<MultiBufferPoint>(cx);
5435 let snapshot = this.buffer.read(cx).snapshot(cx);
5436
5437 for selection in selections.iter() {
5438 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5439 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5440 if selection_start.buffer_id != selection_end.buffer_id {
5441 continue;
5442 }
5443 if let Some(ranges) =
5444 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5445 {
5446 for (buffer, entries) in ranges {
5447 linked_ranges.entry(buffer).or_default().extend(entries);
5448 }
5449 }
5450 }
5451 }
5452
5453 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5454 if !this.selections.line_mode {
5455 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5456 for selection in &mut selections {
5457 if selection.is_empty() {
5458 let old_head = selection.head();
5459 let mut new_head =
5460 movement::left(&display_map, old_head.to_display_point(&display_map))
5461 .to_point(&display_map);
5462 if let Some((buffer, line_buffer_range)) = display_map
5463 .buffer_snapshot
5464 .buffer_line_for_row(MultiBufferRow(old_head.row))
5465 {
5466 let indent_size =
5467 buffer.indent_size_for_line(line_buffer_range.start.row);
5468 let indent_len = match indent_size.kind {
5469 IndentKind::Space => {
5470 buffer.settings_at(line_buffer_range.start, cx).tab_size
5471 }
5472 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5473 };
5474 if old_head.column <= indent_size.len && old_head.column > 0 {
5475 let indent_len = indent_len.get();
5476 new_head = cmp::min(
5477 new_head,
5478 MultiBufferPoint::new(
5479 old_head.row,
5480 ((old_head.column - 1) / indent_len) * indent_len,
5481 ),
5482 );
5483 }
5484 }
5485
5486 selection.set_head(new_head, SelectionGoal::None);
5487 }
5488 }
5489 }
5490
5491 this.signature_help_state.set_backspace_pressed(true);
5492 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5493 this.insert("", cx);
5494 let empty_str: Arc<str> = Arc::from("");
5495 for (buffer, edits) in linked_ranges {
5496 let snapshot = buffer.read(cx).snapshot();
5497 use text::ToPoint as TP;
5498
5499 let edits = edits
5500 .into_iter()
5501 .map(|range| {
5502 let end_point = TP::to_point(&range.end, &snapshot);
5503 let mut start_point = TP::to_point(&range.start, &snapshot);
5504
5505 if end_point == start_point {
5506 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5507 .saturating_sub(1);
5508 start_point =
5509 snapshot.clip_point(TP::to_point(&offset, &snapshot), Bias::Left);
5510 };
5511
5512 (start_point..end_point, empty_str.clone())
5513 })
5514 .sorted_by_key(|(range, _)| range.start)
5515 .collect::<Vec<_>>();
5516 buffer.update(cx, |this, cx| {
5517 this.edit(edits, None, cx);
5518 })
5519 }
5520 this.refresh_inline_completion(true, false, cx);
5521 linked_editing_ranges::refresh_linked_ranges(this, cx);
5522 });
5523 }
5524
5525 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5526 self.transact(cx, |this, cx| {
5527 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5528 let line_mode = s.line_mode;
5529 s.move_with(|map, selection| {
5530 if selection.is_empty() && !line_mode {
5531 let cursor = movement::right(map, selection.head());
5532 selection.end = cursor;
5533 selection.reversed = true;
5534 selection.goal = SelectionGoal::None;
5535 }
5536 })
5537 });
5538 this.insert("", cx);
5539 this.refresh_inline_completion(true, false, cx);
5540 });
5541 }
5542
5543 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5544 if self.move_to_prev_snippet_tabstop(cx) {
5545 return;
5546 }
5547
5548 self.outdent(&Outdent, cx);
5549 }
5550
5551 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5552 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5553 return;
5554 }
5555
5556 let mut selections = self.selections.all_adjusted(cx);
5557 let buffer = self.buffer.read(cx);
5558 let snapshot = buffer.snapshot(cx);
5559 let rows_iter = selections.iter().map(|s| s.head().row);
5560 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5561
5562 let mut edits = Vec::new();
5563 let mut prev_edited_row = 0;
5564 let mut row_delta = 0;
5565 for selection in &mut selections {
5566 if selection.start.row != prev_edited_row {
5567 row_delta = 0;
5568 }
5569 prev_edited_row = selection.end.row;
5570
5571 // If the selection is non-empty, then increase the indentation of the selected lines.
5572 if !selection.is_empty() {
5573 row_delta =
5574 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5575 continue;
5576 }
5577
5578 // If the selection is empty and the cursor is in the leading whitespace before the
5579 // suggested indentation, then auto-indent the line.
5580 let cursor = selection.head();
5581 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5582 if let Some(suggested_indent) =
5583 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5584 {
5585 if cursor.column < suggested_indent.len
5586 && cursor.column <= current_indent.len
5587 && current_indent.len <= suggested_indent.len
5588 {
5589 selection.start = Point::new(cursor.row, suggested_indent.len);
5590 selection.end = selection.start;
5591 if row_delta == 0 {
5592 edits.extend(Buffer::edit_for_indent_size_adjustment(
5593 cursor.row,
5594 current_indent,
5595 suggested_indent,
5596 ));
5597 row_delta = suggested_indent.len - current_indent.len;
5598 }
5599 continue;
5600 }
5601 }
5602
5603 // Otherwise, insert a hard or soft tab.
5604 let settings = buffer.settings_at(cursor, cx);
5605 let tab_size = if settings.hard_tabs {
5606 IndentSize::tab()
5607 } else {
5608 let tab_size = settings.tab_size.get();
5609 let char_column = snapshot
5610 .text_for_range(Point::new(cursor.row, 0)..cursor)
5611 .flat_map(str::chars)
5612 .count()
5613 + row_delta as usize;
5614 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5615 IndentSize::spaces(chars_to_next_tab_stop)
5616 };
5617 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5618 selection.end = selection.start;
5619 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5620 row_delta += tab_size.len;
5621 }
5622
5623 self.transact(cx, |this, cx| {
5624 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5625 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5626 this.refresh_inline_completion(true, false, cx);
5627 });
5628 }
5629
5630 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5631 if self.read_only(cx) {
5632 return;
5633 }
5634 let mut selections = self.selections.all::<Point>(cx);
5635 let mut prev_edited_row = 0;
5636 let mut row_delta = 0;
5637 let mut edits = Vec::new();
5638 let buffer = self.buffer.read(cx);
5639 let snapshot = buffer.snapshot(cx);
5640 for selection in &mut selections {
5641 if selection.start.row != prev_edited_row {
5642 row_delta = 0;
5643 }
5644 prev_edited_row = selection.end.row;
5645
5646 row_delta =
5647 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5648 }
5649
5650 self.transact(cx, |this, cx| {
5651 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5652 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5653 });
5654 }
5655
5656 fn indent_selection(
5657 buffer: &MultiBuffer,
5658 snapshot: &MultiBufferSnapshot,
5659 selection: &mut Selection<Point>,
5660 edits: &mut Vec<(Range<Point>, String)>,
5661 delta_for_start_row: u32,
5662 cx: &AppContext,
5663 ) -> u32 {
5664 let settings = buffer.settings_at(selection.start, cx);
5665 let tab_size = settings.tab_size.get();
5666 let indent_kind = if settings.hard_tabs {
5667 IndentKind::Tab
5668 } else {
5669 IndentKind::Space
5670 };
5671 let mut start_row = selection.start.row;
5672 let mut end_row = selection.end.row + 1;
5673
5674 // If a selection ends at the beginning of a line, don't indent
5675 // that last line.
5676 if selection.end.column == 0 && selection.end.row > selection.start.row {
5677 end_row -= 1;
5678 }
5679
5680 // Avoid re-indenting a row that has already been indented by a
5681 // previous selection, but still update this selection's column
5682 // to reflect that indentation.
5683 if delta_for_start_row > 0 {
5684 start_row += 1;
5685 selection.start.column += delta_for_start_row;
5686 if selection.end.row == selection.start.row {
5687 selection.end.column += delta_for_start_row;
5688 }
5689 }
5690
5691 let mut delta_for_end_row = 0;
5692 let has_multiple_rows = start_row + 1 != end_row;
5693 for row in start_row..end_row {
5694 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5695 let indent_delta = match (current_indent.kind, indent_kind) {
5696 (IndentKind::Space, IndentKind::Space) => {
5697 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5698 IndentSize::spaces(columns_to_next_tab_stop)
5699 }
5700 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5701 (_, IndentKind::Tab) => IndentSize::tab(),
5702 };
5703
5704 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5705 0
5706 } else {
5707 selection.start.column
5708 };
5709 let row_start = Point::new(row, start);
5710 edits.push((
5711 row_start..row_start,
5712 indent_delta.chars().collect::<String>(),
5713 ));
5714
5715 // Update this selection's endpoints to reflect the indentation.
5716 if row == selection.start.row {
5717 selection.start.column += indent_delta.len;
5718 }
5719 if row == selection.end.row {
5720 selection.end.column += indent_delta.len;
5721 delta_for_end_row = indent_delta.len;
5722 }
5723 }
5724
5725 if selection.start.row == selection.end.row {
5726 delta_for_start_row + delta_for_end_row
5727 } else {
5728 delta_for_end_row
5729 }
5730 }
5731
5732 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5733 if self.read_only(cx) {
5734 return;
5735 }
5736 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5737 let selections = self.selections.all::<Point>(cx);
5738 let mut deletion_ranges = Vec::new();
5739 let mut last_outdent = None;
5740 {
5741 let buffer = self.buffer.read(cx);
5742 let snapshot = buffer.snapshot(cx);
5743 for selection in &selections {
5744 let settings = buffer.settings_at(selection.start, cx);
5745 let tab_size = settings.tab_size.get();
5746 let mut rows = selection.spanned_rows(false, &display_map);
5747
5748 // Avoid re-outdenting a row that has already been outdented by a
5749 // previous selection.
5750 if let Some(last_row) = last_outdent {
5751 if last_row == rows.start {
5752 rows.start = rows.start.next_row();
5753 }
5754 }
5755 let has_multiple_rows = rows.len() > 1;
5756 for row in rows.iter_rows() {
5757 let indent_size = snapshot.indent_size_for_line(row);
5758 if indent_size.len > 0 {
5759 let deletion_len = match indent_size.kind {
5760 IndentKind::Space => {
5761 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5762 if columns_to_prev_tab_stop == 0 {
5763 tab_size
5764 } else {
5765 columns_to_prev_tab_stop
5766 }
5767 }
5768 IndentKind::Tab => 1,
5769 };
5770 let start = if has_multiple_rows
5771 || deletion_len > selection.start.column
5772 || indent_size.len < selection.start.column
5773 {
5774 0
5775 } else {
5776 selection.start.column - deletion_len
5777 };
5778 deletion_ranges.push(
5779 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5780 );
5781 last_outdent = Some(row);
5782 }
5783 }
5784 }
5785 }
5786
5787 self.transact(cx, |this, cx| {
5788 this.buffer.update(cx, |buffer, cx| {
5789 let empty_str: Arc<str> = Arc::default();
5790 buffer.edit(
5791 deletion_ranges
5792 .into_iter()
5793 .map(|range| (range, empty_str.clone())),
5794 None,
5795 cx,
5796 );
5797 });
5798 let selections = this.selections.all::<usize>(cx);
5799 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5800 });
5801 }
5802
5803 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
5804 if self.read_only(cx) {
5805 return;
5806 }
5807 let selections = self
5808 .selections
5809 .all::<usize>(cx)
5810 .into_iter()
5811 .map(|s| s.range());
5812
5813 self.transact(cx, |this, cx| {
5814 this.buffer.update(cx, |buffer, cx| {
5815 buffer.autoindent_ranges(selections, cx);
5816 });
5817 let selections = this.selections.all::<usize>(cx);
5818 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5819 });
5820 }
5821
5822 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5823 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5824 let selections = self.selections.all::<Point>(cx);
5825
5826 let mut new_cursors = Vec::new();
5827 let mut edit_ranges = Vec::new();
5828 let mut selections = selections.iter().peekable();
5829 while let Some(selection) = selections.next() {
5830 let mut rows = selection.spanned_rows(false, &display_map);
5831 let goal_display_column = selection.head().to_display_point(&display_map).column();
5832
5833 // Accumulate contiguous regions of rows that we want to delete.
5834 while let Some(next_selection) = selections.peek() {
5835 let next_rows = next_selection.spanned_rows(false, &display_map);
5836 if next_rows.start <= rows.end {
5837 rows.end = next_rows.end;
5838 selections.next().unwrap();
5839 } else {
5840 break;
5841 }
5842 }
5843
5844 let buffer = &display_map.buffer_snapshot;
5845 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5846 let edit_end;
5847 let cursor_buffer_row;
5848 if buffer.max_point().row >= rows.end.0 {
5849 // If there's a line after the range, delete the \n from the end of the row range
5850 // and position the cursor on the next line.
5851 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5852 cursor_buffer_row = rows.end;
5853 } else {
5854 // If there isn't a line after the range, delete the \n from the line before the
5855 // start of the row range and position the cursor there.
5856 edit_start = edit_start.saturating_sub(1);
5857 edit_end = buffer.len();
5858 cursor_buffer_row = rows.start.previous_row();
5859 }
5860
5861 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5862 *cursor.column_mut() =
5863 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5864
5865 new_cursors.push((
5866 selection.id,
5867 buffer.anchor_after(cursor.to_point(&display_map)),
5868 ));
5869 edit_ranges.push(edit_start..edit_end);
5870 }
5871
5872 self.transact(cx, |this, cx| {
5873 let buffer = this.buffer.update(cx, |buffer, cx| {
5874 let empty_str: Arc<str> = Arc::default();
5875 buffer.edit(
5876 edit_ranges
5877 .into_iter()
5878 .map(|range| (range, empty_str.clone())),
5879 None,
5880 cx,
5881 );
5882 buffer.snapshot(cx)
5883 });
5884 let new_selections = new_cursors
5885 .into_iter()
5886 .map(|(id, cursor)| {
5887 let cursor = cursor.to_point(&buffer);
5888 Selection {
5889 id,
5890 start: cursor,
5891 end: cursor,
5892 reversed: false,
5893 goal: SelectionGoal::None,
5894 }
5895 })
5896 .collect();
5897
5898 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5899 s.select(new_selections);
5900 });
5901 });
5902 }
5903
5904 pub fn join_lines_impl(&mut self, insert_whitespace: bool, cx: &mut ViewContext<Self>) {
5905 if self.read_only(cx) {
5906 return;
5907 }
5908 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5909 for selection in self.selections.all::<Point>(cx) {
5910 let start = MultiBufferRow(selection.start.row);
5911 // Treat single line selections as if they include the next line. Otherwise this action
5912 // would do nothing for single line selections individual cursors.
5913 let end = if selection.start.row == selection.end.row {
5914 MultiBufferRow(selection.start.row + 1)
5915 } else {
5916 MultiBufferRow(selection.end.row)
5917 };
5918
5919 if let Some(last_row_range) = row_ranges.last_mut() {
5920 if start <= last_row_range.end {
5921 last_row_range.end = end;
5922 continue;
5923 }
5924 }
5925 row_ranges.push(start..end);
5926 }
5927
5928 let snapshot = self.buffer.read(cx).snapshot(cx);
5929 let mut cursor_positions = Vec::new();
5930 for row_range in &row_ranges {
5931 let anchor = snapshot.anchor_before(Point::new(
5932 row_range.end.previous_row().0,
5933 snapshot.line_len(row_range.end.previous_row()),
5934 ));
5935 cursor_positions.push(anchor..anchor);
5936 }
5937
5938 self.transact(cx, |this, cx| {
5939 for row_range in row_ranges.into_iter().rev() {
5940 for row in row_range.iter_rows().rev() {
5941 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5942 let next_line_row = row.next_row();
5943 let indent = snapshot.indent_size_for_line(next_line_row);
5944 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5945
5946 let replace =
5947 if snapshot.line_len(next_line_row) > indent.len && insert_whitespace {
5948 " "
5949 } else {
5950 ""
5951 };
5952
5953 this.buffer.update(cx, |buffer, cx| {
5954 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5955 });
5956 }
5957 }
5958
5959 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5960 s.select_anchor_ranges(cursor_positions)
5961 });
5962 });
5963 }
5964
5965 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5966 self.join_lines_impl(true, cx);
5967 }
5968
5969 pub fn sort_lines_case_sensitive(
5970 &mut self,
5971 _: &SortLinesCaseSensitive,
5972 cx: &mut ViewContext<Self>,
5973 ) {
5974 self.manipulate_lines(cx, |lines| lines.sort())
5975 }
5976
5977 pub fn sort_lines_case_insensitive(
5978 &mut self,
5979 _: &SortLinesCaseInsensitive,
5980 cx: &mut ViewContext<Self>,
5981 ) {
5982 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5983 }
5984
5985 pub fn unique_lines_case_insensitive(
5986 &mut self,
5987 _: &UniqueLinesCaseInsensitive,
5988 cx: &mut ViewContext<Self>,
5989 ) {
5990 self.manipulate_lines(cx, |lines| {
5991 let mut seen = HashSet::default();
5992 lines.retain(|line| seen.insert(line.to_lowercase()));
5993 })
5994 }
5995
5996 pub fn unique_lines_case_sensitive(
5997 &mut self,
5998 _: &UniqueLinesCaseSensitive,
5999 cx: &mut ViewContext<Self>,
6000 ) {
6001 self.manipulate_lines(cx, |lines| {
6002 let mut seen = HashSet::default();
6003 lines.retain(|line| seen.insert(*line));
6004 })
6005 }
6006
6007 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6008 let mut revert_changes = HashMap::default();
6009 let snapshot = self.snapshot(cx);
6010 for hunk in hunks_for_ranges(
6011 Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter(),
6012 &snapshot,
6013 ) {
6014 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6015 }
6016 if !revert_changes.is_empty() {
6017 self.transact(cx, |editor, cx| {
6018 editor.revert(revert_changes, cx);
6019 });
6020 }
6021 }
6022
6023 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6024 let Some(project) = self.project.clone() else {
6025 return;
6026 };
6027 self.reload(project, cx).detach_and_notify_err(cx);
6028 }
6029
6030 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6031 let revert_changes = self.gather_revert_changes(&self.selections.all(cx), cx);
6032 if !revert_changes.is_empty() {
6033 self.transact(cx, |editor, cx| {
6034 editor.revert(revert_changes, cx);
6035 });
6036 }
6037 }
6038
6039 fn revert_hunk(&mut self, hunk: HoveredHunk, cx: &mut ViewContext<Editor>) {
6040 let snapshot = self.buffer.read(cx).read(cx);
6041 if let Some(hunk) = crate::hunk_diff::to_diff_hunk(&hunk, &snapshot) {
6042 drop(snapshot);
6043 let mut revert_changes = HashMap::default();
6044 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6045 if !revert_changes.is_empty() {
6046 self.revert(revert_changes, cx)
6047 }
6048 }
6049 }
6050
6051 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6052 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6053 let project_path = buffer.read(cx).project_path(cx)?;
6054 let project = self.project.as_ref()?.read(cx);
6055 let entry = project.entry_for_path(&project_path, cx)?;
6056 let parent = match &entry.canonical_path {
6057 Some(canonical_path) => canonical_path.to_path_buf(),
6058 None => project.absolute_path(&project_path, cx)?,
6059 }
6060 .parent()?
6061 .to_path_buf();
6062 Some(parent)
6063 }) {
6064 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6065 }
6066 }
6067
6068 fn gather_revert_changes(
6069 &mut self,
6070 selections: &[Selection<Point>],
6071 cx: &mut ViewContext<Editor>,
6072 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6073 let mut revert_changes = HashMap::default();
6074 let snapshot = self.snapshot(cx);
6075 for hunk in hunks_for_selections(&snapshot, selections) {
6076 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6077 }
6078 revert_changes
6079 }
6080
6081 pub fn prepare_revert_change(
6082 &mut self,
6083 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6084 hunk: &MultiBufferDiffHunk,
6085 cx: &AppContext,
6086 ) -> Option<()> {
6087 let buffer = self.buffer.read(cx).buffer(hunk.buffer_id)?;
6088 let buffer = buffer.read(cx);
6089 let change_set = &self.diff_map.diff_bases.get(&hunk.buffer_id)?.change_set;
6090 let original_text = change_set
6091 .read(cx)
6092 .base_text
6093 .as_ref()?
6094 .read(cx)
6095 .as_rope()
6096 .slice(hunk.diff_base_byte_range.clone());
6097 let buffer_snapshot = buffer.snapshot();
6098 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6099 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6100 probe
6101 .0
6102 .start
6103 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6104 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6105 }) {
6106 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6107 Some(())
6108 } else {
6109 None
6110 }
6111 }
6112
6113 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6114 self.manipulate_lines(cx, |lines| lines.reverse())
6115 }
6116
6117 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6118 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6119 }
6120
6121 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6122 where
6123 Fn: FnMut(&mut Vec<&str>),
6124 {
6125 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6126 let buffer = self.buffer.read(cx).snapshot(cx);
6127
6128 let mut edits = Vec::new();
6129
6130 let selections = self.selections.all::<Point>(cx);
6131 let mut selections = selections.iter().peekable();
6132 let mut contiguous_row_selections = Vec::new();
6133 let mut new_selections = Vec::new();
6134 let mut added_lines = 0;
6135 let mut removed_lines = 0;
6136
6137 while let Some(selection) = selections.next() {
6138 let (start_row, end_row) = consume_contiguous_rows(
6139 &mut contiguous_row_selections,
6140 selection,
6141 &display_map,
6142 &mut selections,
6143 );
6144
6145 let start_point = Point::new(start_row.0, 0);
6146 let end_point = Point::new(
6147 end_row.previous_row().0,
6148 buffer.line_len(end_row.previous_row()),
6149 );
6150 let text = buffer
6151 .text_for_range(start_point..end_point)
6152 .collect::<String>();
6153
6154 let mut lines = text.split('\n').collect_vec();
6155
6156 let lines_before = lines.len();
6157 callback(&mut lines);
6158 let lines_after = lines.len();
6159
6160 edits.push((start_point..end_point, lines.join("\n")));
6161
6162 // Selections must change based on added and removed line count
6163 let start_row =
6164 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6165 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6166 new_selections.push(Selection {
6167 id: selection.id,
6168 start: start_row,
6169 end: end_row,
6170 goal: SelectionGoal::None,
6171 reversed: selection.reversed,
6172 });
6173
6174 if lines_after > lines_before {
6175 added_lines += lines_after - lines_before;
6176 } else if lines_before > lines_after {
6177 removed_lines += lines_before - lines_after;
6178 }
6179 }
6180
6181 self.transact(cx, |this, cx| {
6182 let buffer = this.buffer.update(cx, |buffer, cx| {
6183 buffer.edit(edits, None, cx);
6184 buffer.snapshot(cx)
6185 });
6186
6187 // Recalculate offsets on newly edited buffer
6188 let new_selections = new_selections
6189 .iter()
6190 .map(|s| {
6191 let start_point = Point::new(s.start.0, 0);
6192 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6193 Selection {
6194 id: s.id,
6195 start: buffer.point_to_offset(start_point),
6196 end: buffer.point_to_offset(end_point),
6197 goal: s.goal,
6198 reversed: s.reversed,
6199 }
6200 })
6201 .collect();
6202
6203 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6204 s.select(new_selections);
6205 });
6206
6207 this.request_autoscroll(Autoscroll::fit(), cx);
6208 });
6209 }
6210
6211 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6212 self.manipulate_text(cx, |text| text.to_uppercase())
6213 }
6214
6215 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6216 self.manipulate_text(cx, |text| text.to_lowercase())
6217 }
6218
6219 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6220 self.manipulate_text(cx, |text| {
6221 text.split('\n')
6222 .map(|line| line.to_case(Case::Title))
6223 .join("\n")
6224 })
6225 }
6226
6227 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6228 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6229 }
6230
6231 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6232 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6233 }
6234
6235 pub fn convert_to_upper_camel_case(
6236 &mut self,
6237 _: &ConvertToUpperCamelCase,
6238 cx: &mut ViewContext<Self>,
6239 ) {
6240 self.manipulate_text(cx, |text| {
6241 text.split('\n')
6242 .map(|line| line.to_case(Case::UpperCamel))
6243 .join("\n")
6244 })
6245 }
6246
6247 pub fn convert_to_lower_camel_case(
6248 &mut self,
6249 _: &ConvertToLowerCamelCase,
6250 cx: &mut ViewContext<Self>,
6251 ) {
6252 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6253 }
6254
6255 pub fn convert_to_opposite_case(
6256 &mut self,
6257 _: &ConvertToOppositeCase,
6258 cx: &mut ViewContext<Self>,
6259 ) {
6260 self.manipulate_text(cx, |text| {
6261 text.chars()
6262 .fold(String::with_capacity(text.len()), |mut t, c| {
6263 if c.is_uppercase() {
6264 t.extend(c.to_lowercase());
6265 } else {
6266 t.extend(c.to_uppercase());
6267 }
6268 t
6269 })
6270 })
6271 }
6272
6273 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6274 where
6275 Fn: FnMut(&str) -> String,
6276 {
6277 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6278 let buffer = self.buffer.read(cx).snapshot(cx);
6279
6280 let mut new_selections = Vec::new();
6281 let mut edits = Vec::new();
6282 let mut selection_adjustment = 0i32;
6283
6284 for selection in self.selections.all::<usize>(cx) {
6285 let selection_is_empty = selection.is_empty();
6286
6287 let (start, end) = if selection_is_empty {
6288 let word_range = movement::surrounding_word(
6289 &display_map,
6290 selection.start.to_display_point(&display_map),
6291 );
6292 let start = word_range.start.to_offset(&display_map, Bias::Left);
6293 let end = word_range.end.to_offset(&display_map, Bias::Left);
6294 (start, end)
6295 } else {
6296 (selection.start, selection.end)
6297 };
6298
6299 let text = buffer.text_for_range(start..end).collect::<String>();
6300 let old_length = text.len() as i32;
6301 let text = callback(&text);
6302
6303 new_selections.push(Selection {
6304 start: (start as i32 - selection_adjustment) as usize,
6305 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6306 goal: SelectionGoal::None,
6307 ..selection
6308 });
6309
6310 selection_adjustment += old_length - text.len() as i32;
6311
6312 edits.push((start..end, text));
6313 }
6314
6315 self.transact(cx, |this, cx| {
6316 this.buffer.update(cx, |buffer, cx| {
6317 buffer.edit(edits, None, cx);
6318 });
6319
6320 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6321 s.select(new_selections);
6322 });
6323
6324 this.request_autoscroll(Autoscroll::fit(), cx);
6325 });
6326 }
6327
6328 pub fn duplicate(&mut self, upwards: bool, whole_lines: bool, cx: &mut ViewContext<Self>) {
6329 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6330 let buffer = &display_map.buffer_snapshot;
6331 let selections = self.selections.all::<Point>(cx);
6332
6333 let mut edits = Vec::new();
6334 let mut selections_iter = selections.iter().peekable();
6335 while let Some(selection) = selections_iter.next() {
6336 let mut rows = selection.spanned_rows(false, &display_map);
6337 // duplicate line-wise
6338 if whole_lines || selection.start == selection.end {
6339 // Avoid duplicating the same lines twice.
6340 while let Some(next_selection) = selections_iter.peek() {
6341 let next_rows = next_selection.spanned_rows(false, &display_map);
6342 if next_rows.start < rows.end {
6343 rows.end = next_rows.end;
6344 selections_iter.next().unwrap();
6345 } else {
6346 break;
6347 }
6348 }
6349
6350 // Copy the text from the selected row region and splice it either at the start
6351 // or end of the region.
6352 let start = Point::new(rows.start.0, 0);
6353 let end = Point::new(
6354 rows.end.previous_row().0,
6355 buffer.line_len(rows.end.previous_row()),
6356 );
6357 let text = buffer
6358 .text_for_range(start..end)
6359 .chain(Some("\n"))
6360 .collect::<String>();
6361 let insert_location = if upwards {
6362 Point::new(rows.end.0, 0)
6363 } else {
6364 start
6365 };
6366 edits.push((insert_location..insert_location, text));
6367 } else {
6368 // duplicate character-wise
6369 let start = selection.start;
6370 let end = selection.end;
6371 let text = buffer.text_for_range(start..end).collect::<String>();
6372 edits.push((selection.end..selection.end, text));
6373 }
6374 }
6375
6376 self.transact(cx, |this, cx| {
6377 this.buffer.update(cx, |buffer, cx| {
6378 buffer.edit(edits, None, cx);
6379 });
6380
6381 this.request_autoscroll(Autoscroll::fit(), cx);
6382 });
6383 }
6384
6385 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6386 self.duplicate(true, true, cx);
6387 }
6388
6389 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6390 self.duplicate(false, true, cx);
6391 }
6392
6393 pub fn duplicate_selection(&mut self, _: &DuplicateSelection, cx: &mut ViewContext<Self>) {
6394 self.duplicate(false, false, cx);
6395 }
6396
6397 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6398 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6399 let buffer = self.buffer.read(cx).snapshot(cx);
6400
6401 let mut edits = Vec::new();
6402 let mut unfold_ranges = Vec::new();
6403 let mut refold_creases = Vec::new();
6404
6405 let selections = self.selections.all::<Point>(cx);
6406 let mut selections = selections.iter().peekable();
6407 let mut contiguous_row_selections = Vec::new();
6408 let mut new_selections = Vec::new();
6409
6410 while let Some(selection) = selections.next() {
6411 // Find all the selections that span a contiguous row range
6412 let (start_row, end_row) = consume_contiguous_rows(
6413 &mut contiguous_row_selections,
6414 selection,
6415 &display_map,
6416 &mut selections,
6417 );
6418
6419 // Move the text spanned by the row range to be before the line preceding the row range
6420 if start_row.0 > 0 {
6421 let range_to_move = Point::new(
6422 start_row.previous_row().0,
6423 buffer.line_len(start_row.previous_row()),
6424 )
6425 ..Point::new(
6426 end_row.previous_row().0,
6427 buffer.line_len(end_row.previous_row()),
6428 );
6429 let insertion_point = display_map
6430 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6431 .0;
6432
6433 // Don't move lines across excerpts
6434 if buffer
6435 .excerpt_boundaries_in_range((
6436 Bound::Excluded(insertion_point),
6437 Bound::Included(range_to_move.end),
6438 ))
6439 .next()
6440 .is_none()
6441 {
6442 let text = buffer
6443 .text_for_range(range_to_move.clone())
6444 .flat_map(|s| s.chars())
6445 .skip(1)
6446 .chain(['\n'])
6447 .collect::<String>();
6448
6449 edits.push((
6450 buffer.anchor_after(range_to_move.start)
6451 ..buffer.anchor_before(range_to_move.end),
6452 String::new(),
6453 ));
6454 let insertion_anchor = buffer.anchor_after(insertion_point);
6455 edits.push((insertion_anchor..insertion_anchor, text));
6456
6457 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6458
6459 // Move selections up
6460 new_selections.extend(contiguous_row_selections.drain(..).map(
6461 |mut selection| {
6462 selection.start.row -= row_delta;
6463 selection.end.row -= row_delta;
6464 selection
6465 },
6466 ));
6467
6468 // Move folds up
6469 unfold_ranges.push(range_to_move.clone());
6470 for fold in display_map.folds_in_range(
6471 buffer.anchor_before(range_to_move.start)
6472 ..buffer.anchor_after(range_to_move.end),
6473 ) {
6474 let mut start = fold.range.start.to_point(&buffer);
6475 let mut end = fold.range.end.to_point(&buffer);
6476 start.row -= row_delta;
6477 end.row -= row_delta;
6478 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6479 }
6480 }
6481 }
6482
6483 // If we didn't move line(s), preserve the existing selections
6484 new_selections.append(&mut contiguous_row_selections);
6485 }
6486
6487 self.transact(cx, |this, cx| {
6488 this.unfold_ranges(&unfold_ranges, true, true, cx);
6489 this.buffer.update(cx, |buffer, cx| {
6490 for (range, text) in edits {
6491 buffer.edit([(range, text)], None, cx);
6492 }
6493 });
6494 this.fold_creases(refold_creases, true, cx);
6495 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6496 s.select(new_selections);
6497 })
6498 });
6499 }
6500
6501 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6502 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6503 let buffer = self.buffer.read(cx).snapshot(cx);
6504
6505 let mut edits = Vec::new();
6506 let mut unfold_ranges = Vec::new();
6507 let mut refold_creases = Vec::new();
6508
6509 let selections = self.selections.all::<Point>(cx);
6510 let mut selections = selections.iter().peekable();
6511 let mut contiguous_row_selections = Vec::new();
6512 let mut new_selections = Vec::new();
6513
6514 while let Some(selection) = selections.next() {
6515 // Find all the selections that span a contiguous row range
6516 let (start_row, end_row) = consume_contiguous_rows(
6517 &mut contiguous_row_selections,
6518 selection,
6519 &display_map,
6520 &mut selections,
6521 );
6522
6523 // Move the text spanned by the row range to be after the last line of the row range
6524 if end_row.0 <= buffer.max_point().row {
6525 let range_to_move =
6526 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6527 let insertion_point = display_map
6528 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6529 .0;
6530
6531 // Don't move lines across excerpt boundaries
6532 if buffer
6533 .excerpt_boundaries_in_range((
6534 Bound::Excluded(range_to_move.start),
6535 Bound::Included(insertion_point),
6536 ))
6537 .next()
6538 .is_none()
6539 {
6540 let mut text = String::from("\n");
6541 text.extend(buffer.text_for_range(range_to_move.clone()));
6542 text.pop(); // Drop trailing newline
6543 edits.push((
6544 buffer.anchor_after(range_to_move.start)
6545 ..buffer.anchor_before(range_to_move.end),
6546 String::new(),
6547 ));
6548 let insertion_anchor = buffer.anchor_after(insertion_point);
6549 edits.push((insertion_anchor..insertion_anchor, text));
6550
6551 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6552
6553 // Move selections down
6554 new_selections.extend(contiguous_row_selections.drain(..).map(
6555 |mut selection| {
6556 selection.start.row += row_delta;
6557 selection.end.row += row_delta;
6558 selection
6559 },
6560 ));
6561
6562 // Move folds down
6563 unfold_ranges.push(range_to_move.clone());
6564 for fold in display_map.folds_in_range(
6565 buffer.anchor_before(range_to_move.start)
6566 ..buffer.anchor_after(range_to_move.end),
6567 ) {
6568 let mut start = fold.range.start.to_point(&buffer);
6569 let mut end = fold.range.end.to_point(&buffer);
6570 start.row += row_delta;
6571 end.row += row_delta;
6572 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6573 }
6574 }
6575 }
6576
6577 // If we didn't move line(s), preserve the existing selections
6578 new_selections.append(&mut contiguous_row_selections);
6579 }
6580
6581 self.transact(cx, |this, cx| {
6582 this.unfold_ranges(&unfold_ranges, true, true, cx);
6583 this.buffer.update(cx, |buffer, cx| {
6584 for (range, text) in edits {
6585 buffer.edit([(range, text)], None, cx);
6586 }
6587 });
6588 this.fold_creases(refold_creases, true, cx);
6589 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6590 });
6591 }
6592
6593 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6594 let text_layout_details = &self.text_layout_details(cx);
6595 self.transact(cx, |this, cx| {
6596 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6597 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6598 let line_mode = s.line_mode;
6599 s.move_with(|display_map, selection| {
6600 if !selection.is_empty() || line_mode {
6601 return;
6602 }
6603
6604 let mut head = selection.head();
6605 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6606 if head.column() == display_map.line_len(head.row()) {
6607 transpose_offset = display_map
6608 .buffer_snapshot
6609 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6610 }
6611
6612 if transpose_offset == 0 {
6613 return;
6614 }
6615
6616 *head.column_mut() += 1;
6617 head = display_map.clip_point(head, Bias::Right);
6618 let goal = SelectionGoal::HorizontalPosition(
6619 display_map
6620 .x_for_display_point(head, text_layout_details)
6621 .into(),
6622 );
6623 selection.collapse_to(head, goal);
6624
6625 let transpose_start = display_map
6626 .buffer_snapshot
6627 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6628 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6629 let transpose_end = display_map
6630 .buffer_snapshot
6631 .clip_offset(transpose_offset + 1, Bias::Right);
6632 if let Some(ch) =
6633 display_map.buffer_snapshot.chars_at(transpose_start).next()
6634 {
6635 edits.push((transpose_start..transpose_offset, String::new()));
6636 edits.push((transpose_end..transpose_end, ch.to_string()));
6637 }
6638 }
6639 });
6640 edits
6641 });
6642 this.buffer
6643 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6644 let selections = this.selections.all::<usize>(cx);
6645 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6646 s.select(selections);
6647 });
6648 });
6649 }
6650
6651 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6652 self.rewrap_impl(IsVimMode::No, cx)
6653 }
6654
6655 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
6656 let buffer = self.buffer.read(cx).snapshot(cx);
6657 let selections = self.selections.all::<Point>(cx);
6658 let mut selections = selections.iter().peekable();
6659
6660 let mut edits = Vec::new();
6661 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6662
6663 while let Some(selection) = selections.next() {
6664 let mut start_row = selection.start.row;
6665 let mut end_row = selection.end.row;
6666
6667 // Skip selections that overlap with a range that has already been rewrapped.
6668 let selection_range = start_row..end_row;
6669 if rewrapped_row_ranges
6670 .iter()
6671 .any(|range| range.overlaps(&selection_range))
6672 {
6673 continue;
6674 }
6675
6676 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
6677
6678 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6679 match language_scope.language_name().0.as_ref() {
6680 "Markdown" | "Plain Text" => {
6681 should_rewrap = true;
6682 }
6683 _ => {}
6684 }
6685 }
6686
6687 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
6688
6689 // Since not all lines in the selection may be at the same indent
6690 // level, choose the indent size that is the most common between all
6691 // of the lines.
6692 //
6693 // If there is a tie, we use the deepest indent.
6694 let (indent_size, indent_end) = {
6695 let mut indent_size_occurrences = HashMap::default();
6696 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6697
6698 for row in start_row..=end_row {
6699 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6700 rows_by_indent_size.entry(indent).or_default().push(row);
6701 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6702 }
6703
6704 let indent_size = indent_size_occurrences
6705 .into_iter()
6706 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
6707 .map(|(indent, _)| indent)
6708 .unwrap_or_default();
6709 let row = rows_by_indent_size[&indent_size][0];
6710 let indent_end = Point::new(row, indent_size.len);
6711
6712 (indent_size, indent_end)
6713 };
6714
6715 let mut line_prefix = indent_size.chars().collect::<String>();
6716
6717 if let Some(comment_prefix) =
6718 buffer
6719 .language_scope_at(selection.head())
6720 .and_then(|language| {
6721 language
6722 .line_comment_prefixes()
6723 .iter()
6724 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6725 .cloned()
6726 })
6727 {
6728 line_prefix.push_str(&comment_prefix);
6729 should_rewrap = true;
6730 }
6731
6732 if !should_rewrap {
6733 continue;
6734 }
6735
6736 if selection.is_empty() {
6737 'expand_upwards: while start_row > 0 {
6738 let prev_row = start_row - 1;
6739 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6740 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6741 {
6742 start_row = prev_row;
6743 } else {
6744 break 'expand_upwards;
6745 }
6746 }
6747
6748 'expand_downwards: while end_row < buffer.max_point().row {
6749 let next_row = end_row + 1;
6750 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6751 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6752 {
6753 end_row = next_row;
6754 } else {
6755 break 'expand_downwards;
6756 }
6757 }
6758 }
6759
6760 let start = Point::new(start_row, 0);
6761 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6762 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6763 let Some(lines_without_prefixes) = selection_text
6764 .lines()
6765 .map(|line| {
6766 line.strip_prefix(&line_prefix)
6767 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6768 .ok_or_else(|| {
6769 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6770 })
6771 })
6772 .collect::<Result<Vec<_>, _>>()
6773 .log_err()
6774 else {
6775 continue;
6776 };
6777
6778 let wrap_column = buffer
6779 .settings_at(Point::new(start_row, 0), cx)
6780 .preferred_line_length as usize;
6781 let wrapped_text = wrap_with_prefix(
6782 line_prefix,
6783 lines_without_prefixes.join(" "),
6784 wrap_column,
6785 tab_size,
6786 );
6787
6788 // TODO: should always use char-based diff while still supporting cursor behavior that
6789 // matches vim.
6790 let diff = match is_vim_mode {
6791 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
6792 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
6793 };
6794 let mut offset = start.to_offset(&buffer);
6795 let mut moved_since_edit = true;
6796
6797 for change in diff.iter_all_changes() {
6798 let value = change.value();
6799 match change.tag() {
6800 ChangeTag::Equal => {
6801 offset += value.len();
6802 moved_since_edit = true;
6803 }
6804 ChangeTag::Delete => {
6805 let start = buffer.anchor_after(offset);
6806 let end = buffer.anchor_before(offset + value.len());
6807
6808 if moved_since_edit {
6809 edits.push((start..end, String::new()));
6810 } else {
6811 edits.last_mut().unwrap().0.end = end;
6812 }
6813
6814 offset += value.len();
6815 moved_since_edit = false;
6816 }
6817 ChangeTag::Insert => {
6818 if moved_since_edit {
6819 let anchor = buffer.anchor_after(offset);
6820 edits.push((anchor..anchor, value.to_string()));
6821 } else {
6822 edits.last_mut().unwrap().1.push_str(value);
6823 }
6824
6825 moved_since_edit = false;
6826 }
6827 }
6828 }
6829
6830 rewrapped_row_ranges.push(start_row..=end_row);
6831 }
6832
6833 self.buffer
6834 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6835 }
6836
6837 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
6838 let mut text = String::new();
6839 let buffer = self.buffer.read(cx).snapshot(cx);
6840 let mut selections = self.selections.all::<Point>(cx);
6841 let mut clipboard_selections = Vec::with_capacity(selections.len());
6842 {
6843 let max_point = buffer.max_point();
6844 let mut is_first = true;
6845 for selection in &mut selections {
6846 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6847 if is_entire_line {
6848 selection.start = Point::new(selection.start.row, 0);
6849 if !selection.is_empty() && selection.end.column == 0 {
6850 selection.end = cmp::min(max_point, selection.end);
6851 } else {
6852 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6853 }
6854 selection.goal = SelectionGoal::None;
6855 }
6856 if is_first {
6857 is_first = false;
6858 } else {
6859 text += "\n";
6860 }
6861 let mut len = 0;
6862 for chunk in buffer.text_for_range(selection.start..selection.end) {
6863 text.push_str(chunk);
6864 len += chunk.len();
6865 }
6866 clipboard_selections.push(ClipboardSelection {
6867 len,
6868 is_entire_line,
6869 first_line_indent: buffer
6870 .indent_size_for_line(MultiBufferRow(selection.start.row))
6871 .len,
6872 });
6873 }
6874 }
6875
6876 self.transact(cx, |this, cx| {
6877 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6878 s.select(selections);
6879 });
6880 this.insert("", cx);
6881 });
6882 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
6883 }
6884
6885 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6886 let item = self.cut_common(cx);
6887 cx.write_to_clipboard(item);
6888 }
6889
6890 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
6891 self.change_selections(None, cx, |s| {
6892 s.move_with(|snapshot, sel| {
6893 if sel.is_empty() {
6894 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
6895 }
6896 });
6897 });
6898 let item = self.cut_common(cx);
6899 cx.set_global(KillRing(item))
6900 }
6901
6902 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
6903 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
6904 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
6905 (kill_ring.text().to_string(), kill_ring.metadata_json())
6906 } else {
6907 return;
6908 }
6909 } else {
6910 return;
6911 };
6912 self.do_paste(&text, metadata, false, cx);
6913 }
6914
6915 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6916 let selections = self.selections.all::<Point>(cx);
6917 let buffer = self.buffer.read(cx).read(cx);
6918 let mut text = String::new();
6919
6920 let mut clipboard_selections = Vec::with_capacity(selections.len());
6921 {
6922 let max_point = buffer.max_point();
6923 let mut is_first = true;
6924 for selection in selections.iter() {
6925 let mut start = selection.start;
6926 let mut end = selection.end;
6927 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6928 if is_entire_line {
6929 start = Point::new(start.row, 0);
6930 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6931 }
6932 if is_first {
6933 is_first = false;
6934 } else {
6935 text += "\n";
6936 }
6937 let mut len = 0;
6938 for chunk in buffer.text_for_range(start..end) {
6939 text.push_str(chunk);
6940 len += chunk.len();
6941 }
6942 clipboard_selections.push(ClipboardSelection {
6943 len,
6944 is_entire_line,
6945 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6946 });
6947 }
6948 }
6949
6950 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6951 text,
6952 clipboard_selections,
6953 ));
6954 }
6955
6956 pub fn do_paste(
6957 &mut self,
6958 text: &String,
6959 clipboard_selections: Option<Vec<ClipboardSelection>>,
6960 handle_entire_lines: bool,
6961 cx: &mut ViewContext<Self>,
6962 ) {
6963 if self.read_only(cx) {
6964 return;
6965 }
6966
6967 let clipboard_text = Cow::Borrowed(text);
6968
6969 self.transact(cx, |this, cx| {
6970 if let Some(mut clipboard_selections) = clipboard_selections {
6971 let old_selections = this.selections.all::<usize>(cx);
6972 let all_selections_were_entire_line =
6973 clipboard_selections.iter().all(|s| s.is_entire_line);
6974 let first_selection_indent_column =
6975 clipboard_selections.first().map(|s| s.first_line_indent);
6976 if clipboard_selections.len() != old_selections.len() {
6977 clipboard_selections.drain(..);
6978 }
6979 let cursor_offset = this.selections.last::<usize>(cx).head();
6980 let mut auto_indent_on_paste = true;
6981
6982 this.buffer.update(cx, |buffer, cx| {
6983 let snapshot = buffer.read(cx);
6984 auto_indent_on_paste =
6985 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
6986
6987 let mut start_offset = 0;
6988 let mut edits = Vec::new();
6989 let mut original_indent_columns = Vec::new();
6990 for (ix, selection) in old_selections.iter().enumerate() {
6991 let to_insert;
6992 let entire_line;
6993 let original_indent_column;
6994 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6995 let end_offset = start_offset + clipboard_selection.len;
6996 to_insert = &clipboard_text[start_offset..end_offset];
6997 entire_line = clipboard_selection.is_entire_line;
6998 start_offset = end_offset + 1;
6999 original_indent_column = Some(clipboard_selection.first_line_indent);
7000 } else {
7001 to_insert = clipboard_text.as_str();
7002 entire_line = all_selections_were_entire_line;
7003 original_indent_column = first_selection_indent_column
7004 }
7005
7006 // If the corresponding selection was empty when this slice of the
7007 // clipboard text was written, then the entire line containing the
7008 // selection was copied. If this selection is also currently empty,
7009 // then paste the line before the current line of the buffer.
7010 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7011 let column = selection.start.to_point(&snapshot).column as usize;
7012 let line_start = selection.start - column;
7013 line_start..line_start
7014 } else {
7015 selection.range()
7016 };
7017
7018 edits.push((range, to_insert));
7019 original_indent_columns.extend(original_indent_column);
7020 }
7021 drop(snapshot);
7022
7023 buffer.edit(
7024 edits,
7025 if auto_indent_on_paste {
7026 Some(AutoindentMode::Block {
7027 original_indent_columns,
7028 })
7029 } else {
7030 None
7031 },
7032 cx,
7033 );
7034 });
7035
7036 let selections = this.selections.all::<usize>(cx);
7037 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7038 } else {
7039 this.insert(&clipboard_text, cx);
7040 }
7041 });
7042 }
7043
7044 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7045 if let Some(item) = cx.read_from_clipboard() {
7046 let entries = item.entries();
7047
7048 match entries.first() {
7049 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7050 // of all the pasted entries.
7051 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7052 .do_paste(
7053 clipboard_string.text(),
7054 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7055 true,
7056 cx,
7057 ),
7058 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7059 }
7060 }
7061 }
7062
7063 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7064 if self.read_only(cx) {
7065 return;
7066 }
7067
7068 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7069 if let Some((selections, _)) =
7070 self.selection_history.transaction(transaction_id).cloned()
7071 {
7072 self.change_selections(None, cx, |s| {
7073 s.select_anchors(selections.to_vec());
7074 });
7075 }
7076 self.request_autoscroll(Autoscroll::fit(), cx);
7077 self.unmark_text(cx);
7078 self.refresh_inline_completion(true, false, cx);
7079 cx.emit(EditorEvent::Edited { transaction_id });
7080 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7081 }
7082 }
7083
7084 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7085 if self.read_only(cx) {
7086 return;
7087 }
7088
7089 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7090 if let Some((_, Some(selections))) =
7091 self.selection_history.transaction(transaction_id).cloned()
7092 {
7093 self.change_selections(None, cx, |s| {
7094 s.select_anchors(selections.to_vec());
7095 });
7096 }
7097 self.request_autoscroll(Autoscroll::fit(), cx);
7098 self.unmark_text(cx);
7099 self.refresh_inline_completion(true, false, cx);
7100 cx.emit(EditorEvent::Edited { transaction_id });
7101 }
7102 }
7103
7104 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7105 self.buffer
7106 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7107 }
7108
7109 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7110 self.buffer
7111 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7112 }
7113
7114 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7115 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7116 let line_mode = s.line_mode;
7117 s.move_with(|map, selection| {
7118 let cursor = if selection.is_empty() && !line_mode {
7119 movement::left(map, selection.start)
7120 } else {
7121 selection.start
7122 };
7123 selection.collapse_to(cursor, SelectionGoal::None);
7124 });
7125 })
7126 }
7127
7128 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7129 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7130 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7131 })
7132 }
7133
7134 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7135 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7136 let line_mode = s.line_mode;
7137 s.move_with(|map, selection| {
7138 let cursor = if selection.is_empty() && !line_mode {
7139 movement::right(map, selection.end)
7140 } else {
7141 selection.end
7142 };
7143 selection.collapse_to(cursor, SelectionGoal::None)
7144 });
7145 })
7146 }
7147
7148 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7149 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7150 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7151 })
7152 }
7153
7154 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7155 if self.take_rename(true, cx).is_some() {
7156 return;
7157 }
7158
7159 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7160 cx.propagate();
7161 return;
7162 }
7163
7164 let text_layout_details = &self.text_layout_details(cx);
7165 let selection_count = self.selections.count();
7166 let first_selection = self.selections.first_anchor();
7167
7168 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7169 let line_mode = s.line_mode;
7170 s.move_with(|map, selection| {
7171 if !selection.is_empty() && !line_mode {
7172 selection.goal = SelectionGoal::None;
7173 }
7174 let (cursor, goal) = movement::up(
7175 map,
7176 selection.start,
7177 selection.goal,
7178 false,
7179 text_layout_details,
7180 );
7181 selection.collapse_to(cursor, goal);
7182 });
7183 });
7184
7185 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7186 {
7187 cx.propagate();
7188 }
7189 }
7190
7191 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7192 if self.take_rename(true, cx).is_some() {
7193 return;
7194 }
7195
7196 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7197 cx.propagate();
7198 return;
7199 }
7200
7201 let text_layout_details = &self.text_layout_details(cx);
7202
7203 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7204 let line_mode = s.line_mode;
7205 s.move_with(|map, selection| {
7206 if !selection.is_empty() && !line_mode {
7207 selection.goal = SelectionGoal::None;
7208 }
7209 let (cursor, goal) = movement::up_by_rows(
7210 map,
7211 selection.start,
7212 action.lines,
7213 selection.goal,
7214 false,
7215 text_layout_details,
7216 );
7217 selection.collapse_to(cursor, goal);
7218 });
7219 })
7220 }
7221
7222 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7223 if self.take_rename(true, cx).is_some() {
7224 return;
7225 }
7226
7227 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7228 cx.propagate();
7229 return;
7230 }
7231
7232 let text_layout_details = &self.text_layout_details(cx);
7233
7234 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7235 let line_mode = s.line_mode;
7236 s.move_with(|map, selection| {
7237 if !selection.is_empty() && !line_mode {
7238 selection.goal = SelectionGoal::None;
7239 }
7240 let (cursor, goal) = movement::down_by_rows(
7241 map,
7242 selection.start,
7243 action.lines,
7244 selection.goal,
7245 false,
7246 text_layout_details,
7247 );
7248 selection.collapse_to(cursor, goal);
7249 });
7250 })
7251 }
7252
7253 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7254 let text_layout_details = &self.text_layout_details(cx);
7255 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7256 s.move_heads_with(|map, head, goal| {
7257 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7258 })
7259 })
7260 }
7261
7262 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7263 let text_layout_details = &self.text_layout_details(cx);
7264 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7265 s.move_heads_with(|map, head, goal| {
7266 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7267 })
7268 })
7269 }
7270
7271 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7272 let Some(row_count) = self.visible_row_count() else {
7273 return;
7274 };
7275
7276 let text_layout_details = &self.text_layout_details(cx);
7277
7278 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7279 s.move_heads_with(|map, head, goal| {
7280 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7281 })
7282 })
7283 }
7284
7285 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7286 if self.take_rename(true, cx).is_some() {
7287 return;
7288 }
7289
7290 if self
7291 .context_menu
7292 .borrow_mut()
7293 .as_mut()
7294 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7295 .unwrap_or(false)
7296 {
7297 return;
7298 }
7299
7300 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7301 cx.propagate();
7302 return;
7303 }
7304
7305 let Some(row_count) = self.visible_row_count() else {
7306 return;
7307 };
7308
7309 let autoscroll = if action.center_cursor {
7310 Autoscroll::center()
7311 } else {
7312 Autoscroll::fit()
7313 };
7314
7315 let text_layout_details = &self.text_layout_details(cx);
7316
7317 self.change_selections(Some(autoscroll), cx, |s| {
7318 let line_mode = s.line_mode;
7319 s.move_with(|map, selection| {
7320 if !selection.is_empty() && !line_mode {
7321 selection.goal = SelectionGoal::None;
7322 }
7323 let (cursor, goal) = movement::up_by_rows(
7324 map,
7325 selection.end,
7326 row_count,
7327 selection.goal,
7328 false,
7329 text_layout_details,
7330 );
7331 selection.collapse_to(cursor, goal);
7332 });
7333 });
7334 }
7335
7336 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7337 let text_layout_details = &self.text_layout_details(cx);
7338 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7339 s.move_heads_with(|map, head, goal| {
7340 movement::up(map, head, goal, false, text_layout_details)
7341 })
7342 })
7343 }
7344
7345 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7346 self.take_rename(true, cx);
7347
7348 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7349 cx.propagate();
7350 return;
7351 }
7352
7353 let text_layout_details = &self.text_layout_details(cx);
7354 let selection_count = self.selections.count();
7355 let first_selection = self.selections.first_anchor();
7356
7357 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7358 let line_mode = s.line_mode;
7359 s.move_with(|map, selection| {
7360 if !selection.is_empty() && !line_mode {
7361 selection.goal = SelectionGoal::None;
7362 }
7363 let (cursor, goal) = movement::down(
7364 map,
7365 selection.end,
7366 selection.goal,
7367 false,
7368 text_layout_details,
7369 );
7370 selection.collapse_to(cursor, goal);
7371 });
7372 });
7373
7374 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7375 {
7376 cx.propagate();
7377 }
7378 }
7379
7380 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7381 let Some(row_count) = self.visible_row_count() else {
7382 return;
7383 };
7384
7385 let text_layout_details = &self.text_layout_details(cx);
7386
7387 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7388 s.move_heads_with(|map, head, goal| {
7389 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7390 })
7391 })
7392 }
7393
7394 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7395 if self.take_rename(true, cx).is_some() {
7396 return;
7397 }
7398
7399 if self
7400 .context_menu
7401 .borrow_mut()
7402 .as_mut()
7403 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7404 .unwrap_or(false)
7405 {
7406 return;
7407 }
7408
7409 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7410 cx.propagate();
7411 return;
7412 }
7413
7414 let Some(row_count) = self.visible_row_count() else {
7415 return;
7416 };
7417
7418 let autoscroll = if action.center_cursor {
7419 Autoscroll::center()
7420 } else {
7421 Autoscroll::fit()
7422 };
7423
7424 let text_layout_details = &self.text_layout_details(cx);
7425 self.change_selections(Some(autoscroll), cx, |s| {
7426 let line_mode = s.line_mode;
7427 s.move_with(|map, selection| {
7428 if !selection.is_empty() && !line_mode {
7429 selection.goal = SelectionGoal::None;
7430 }
7431 let (cursor, goal) = movement::down_by_rows(
7432 map,
7433 selection.end,
7434 row_count,
7435 selection.goal,
7436 false,
7437 text_layout_details,
7438 );
7439 selection.collapse_to(cursor, goal);
7440 });
7441 });
7442 }
7443
7444 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7445 let text_layout_details = &self.text_layout_details(cx);
7446 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7447 s.move_heads_with(|map, head, goal| {
7448 movement::down(map, head, goal, false, text_layout_details)
7449 })
7450 });
7451 }
7452
7453 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7454 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7455 context_menu.select_first(self.completion_provider.as_deref(), cx);
7456 }
7457 }
7458
7459 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7460 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7461 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7462 }
7463 }
7464
7465 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7466 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7467 context_menu.select_next(self.completion_provider.as_deref(), cx);
7468 }
7469 }
7470
7471 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7472 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7473 context_menu.select_last(self.completion_provider.as_deref(), cx);
7474 }
7475 }
7476
7477 pub fn move_to_previous_word_start(
7478 &mut self,
7479 _: &MoveToPreviousWordStart,
7480 cx: &mut ViewContext<Self>,
7481 ) {
7482 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7483 s.move_cursors_with(|map, head, _| {
7484 (
7485 movement::previous_word_start(map, head),
7486 SelectionGoal::None,
7487 )
7488 });
7489 })
7490 }
7491
7492 pub fn move_to_previous_subword_start(
7493 &mut self,
7494 _: &MoveToPreviousSubwordStart,
7495 cx: &mut ViewContext<Self>,
7496 ) {
7497 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7498 s.move_cursors_with(|map, head, _| {
7499 (
7500 movement::previous_subword_start(map, head),
7501 SelectionGoal::None,
7502 )
7503 });
7504 })
7505 }
7506
7507 pub fn select_to_previous_word_start(
7508 &mut self,
7509 _: &SelectToPreviousWordStart,
7510 cx: &mut ViewContext<Self>,
7511 ) {
7512 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7513 s.move_heads_with(|map, head, _| {
7514 (
7515 movement::previous_word_start(map, head),
7516 SelectionGoal::None,
7517 )
7518 });
7519 })
7520 }
7521
7522 pub fn select_to_previous_subword_start(
7523 &mut self,
7524 _: &SelectToPreviousSubwordStart,
7525 cx: &mut ViewContext<Self>,
7526 ) {
7527 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7528 s.move_heads_with(|map, head, _| {
7529 (
7530 movement::previous_subword_start(map, head),
7531 SelectionGoal::None,
7532 )
7533 });
7534 })
7535 }
7536
7537 pub fn delete_to_previous_word_start(
7538 &mut self,
7539 action: &DeleteToPreviousWordStart,
7540 cx: &mut ViewContext<Self>,
7541 ) {
7542 self.transact(cx, |this, cx| {
7543 this.select_autoclose_pair(cx);
7544 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7545 let line_mode = s.line_mode;
7546 s.move_with(|map, selection| {
7547 if selection.is_empty() && !line_mode {
7548 let cursor = if action.ignore_newlines {
7549 movement::previous_word_start(map, selection.head())
7550 } else {
7551 movement::previous_word_start_or_newline(map, selection.head())
7552 };
7553 selection.set_head(cursor, SelectionGoal::None);
7554 }
7555 });
7556 });
7557 this.insert("", cx);
7558 });
7559 }
7560
7561 pub fn delete_to_previous_subword_start(
7562 &mut self,
7563 _: &DeleteToPreviousSubwordStart,
7564 cx: &mut ViewContext<Self>,
7565 ) {
7566 self.transact(cx, |this, cx| {
7567 this.select_autoclose_pair(cx);
7568 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7569 let line_mode = s.line_mode;
7570 s.move_with(|map, selection| {
7571 if selection.is_empty() && !line_mode {
7572 let cursor = movement::previous_subword_start(map, selection.head());
7573 selection.set_head(cursor, SelectionGoal::None);
7574 }
7575 });
7576 });
7577 this.insert("", cx);
7578 });
7579 }
7580
7581 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7582 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7583 s.move_cursors_with(|map, head, _| {
7584 (movement::next_word_end(map, head), SelectionGoal::None)
7585 });
7586 })
7587 }
7588
7589 pub fn move_to_next_subword_end(
7590 &mut self,
7591 _: &MoveToNextSubwordEnd,
7592 cx: &mut ViewContext<Self>,
7593 ) {
7594 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7595 s.move_cursors_with(|map, head, _| {
7596 (movement::next_subword_end(map, head), SelectionGoal::None)
7597 });
7598 })
7599 }
7600
7601 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7602 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7603 s.move_heads_with(|map, head, _| {
7604 (movement::next_word_end(map, head), SelectionGoal::None)
7605 });
7606 })
7607 }
7608
7609 pub fn select_to_next_subword_end(
7610 &mut self,
7611 _: &SelectToNextSubwordEnd,
7612 cx: &mut ViewContext<Self>,
7613 ) {
7614 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7615 s.move_heads_with(|map, head, _| {
7616 (movement::next_subword_end(map, head), SelectionGoal::None)
7617 });
7618 })
7619 }
7620
7621 pub fn delete_to_next_word_end(
7622 &mut self,
7623 action: &DeleteToNextWordEnd,
7624 cx: &mut ViewContext<Self>,
7625 ) {
7626 self.transact(cx, |this, cx| {
7627 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7628 let line_mode = s.line_mode;
7629 s.move_with(|map, selection| {
7630 if selection.is_empty() && !line_mode {
7631 let cursor = if action.ignore_newlines {
7632 movement::next_word_end(map, selection.head())
7633 } else {
7634 movement::next_word_end_or_newline(map, selection.head())
7635 };
7636 selection.set_head(cursor, SelectionGoal::None);
7637 }
7638 });
7639 });
7640 this.insert("", cx);
7641 });
7642 }
7643
7644 pub fn delete_to_next_subword_end(
7645 &mut self,
7646 _: &DeleteToNextSubwordEnd,
7647 cx: &mut ViewContext<Self>,
7648 ) {
7649 self.transact(cx, |this, cx| {
7650 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7651 s.move_with(|map, selection| {
7652 if selection.is_empty() {
7653 let cursor = movement::next_subword_end(map, selection.head());
7654 selection.set_head(cursor, SelectionGoal::None);
7655 }
7656 });
7657 });
7658 this.insert("", cx);
7659 });
7660 }
7661
7662 pub fn move_to_beginning_of_line(
7663 &mut self,
7664 action: &MoveToBeginningOfLine,
7665 cx: &mut ViewContext<Self>,
7666 ) {
7667 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7668 s.move_cursors_with(|map, head, _| {
7669 (
7670 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7671 SelectionGoal::None,
7672 )
7673 });
7674 })
7675 }
7676
7677 pub fn select_to_beginning_of_line(
7678 &mut self,
7679 action: &SelectToBeginningOfLine,
7680 cx: &mut ViewContext<Self>,
7681 ) {
7682 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7683 s.move_heads_with(|map, head, _| {
7684 (
7685 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7686 SelectionGoal::None,
7687 )
7688 });
7689 });
7690 }
7691
7692 pub fn delete_to_beginning_of_line(
7693 &mut self,
7694 _: &DeleteToBeginningOfLine,
7695 cx: &mut ViewContext<Self>,
7696 ) {
7697 self.transact(cx, |this, cx| {
7698 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7699 s.move_with(|_, selection| {
7700 selection.reversed = true;
7701 });
7702 });
7703
7704 this.select_to_beginning_of_line(
7705 &SelectToBeginningOfLine {
7706 stop_at_soft_wraps: false,
7707 },
7708 cx,
7709 );
7710 this.backspace(&Backspace, cx);
7711 });
7712 }
7713
7714 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7715 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7716 s.move_cursors_with(|map, head, _| {
7717 (
7718 movement::line_end(map, head, action.stop_at_soft_wraps),
7719 SelectionGoal::None,
7720 )
7721 });
7722 })
7723 }
7724
7725 pub fn select_to_end_of_line(
7726 &mut self,
7727 action: &SelectToEndOfLine,
7728 cx: &mut ViewContext<Self>,
7729 ) {
7730 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7731 s.move_heads_with(|map, head, _| {
7732 (
7733 movement::line_end(map, head, action.stop_at_soft_wraps),
7734 SelectionGoal::None,
7735 )
7736 });
7737 })
7738 }
7739
7740 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7741 self.transact(cx, |this, cx| {
7742 this.select_to_end_of_line(
7743 &SelectToEndOfLine {
7744 stop_at_soft_wraps: false,
7745 },
7746 cx,
7747 );
7748 this.delete(&Delete, cx);
7749 });
7750 }
7751
7752 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7753 self.transact(cx, |this, cx| {
7754 this.select_to_end_of_line(
7755 &SelectToEndOfLine {
7756 stop_at_soft_wraps: false,
7757 },
7758 cx,
7759 );
7760 this.cut(&Cut, cx);
7761 });
7762 }
7763
7764 pub fn move_to_start_of_paragraph(
7765 &mut self,
7766 _: &MoveToStartOfParagraph,
7767 cx: &mut ViewContext<Self>,
7768 ) {
7769 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7770 cx.propagate();
7771 return;
7772 }
7773
7774 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7775 s.move_with(|map, selection| {
7776 selection.collapse_to(
7777 movement::start_of_paragraph(map, selection.head(), 1),
7778 SelectionGoal::None,
7779 )
7780 });
7781 })
7782 }
7783
7784 pub fn move_to_end_of_paragraph(
7785 &mut self,
7786 _: &MoveToEndOfParagraph,
7787 cx: &mut ViewContext<Self>,
7788 ) {
7789 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7790 cx.propagate();
7791 return;
7792 }
7793
7794 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7795 s.move_with(|map, selection| {
7796 selection.collapse_to(
7797 movement::end_of_paragraph(map, selection.head(), 1),
7798 SelectionGoal::None,
7799 )
7800 });
7801 })
7802 }
7803
7804 pub fn select_to_start_of_paragraph(
7805 &mut self,
7806 _: &SelectToStartOfParagraph,
7807 cx: &mut ViewContext<Self>,
7808 ) {
7809 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7810 cx.propagate();
7811 return;
7812 }
7813
7814 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7815 s.move_heads_with(|map, head, _| {
7816 (
7817 movement::start_of_paragraph(map, head, 1),
7818 SelectionGoal::None,
7819 )
7820 });
7821 })
7822 }
7823
7824 pub fn select_to_end_of_paragraph(
7825 &mut self,
7826 _: &SelectToEndOfParagraph,
7827 cx: &mut ViewContext<Self>,
7828 ) {
7829 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7830 cx.propagate();
7831 return;
7832 }
7833
7834 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7835 s.move_heads_with(|map, head, _| {
7836 (
7837 movement::end_of_paragraph(map, head, 1),
7838 SelectionGoal::None,
7839 )
7840 });
7841 })
7842 }
7843
7844 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7845 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7846 cx.propagate();
7847 return;
7848 }
7849
7850 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7851 s.select_ranges(vec![0..0]);
7852 });
7853 }
7854
7855 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7856 let mut selection = self.selections.last::<Point>(cx);
7857 selection.set_head(Point::zero(), SelectionGoal::None);
7858
7859 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7860 s.select(vec![selection]);
7861 });
7862 }
7863
7864 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7865 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7866 cx.propagate();
7867 return;
7868 }
7869
7870 let cursor = self.buffer.read(cx).read(cx).len();
7871 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7872 s.select_ranges(vec![cursor..cursor])
7873 });
7874 }
7875
7876 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7877 self.nav_history = nav_history;
7878 }
7879
7880 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7881 self.nav_history.as_ref()
7882 }
7883
7884 fn push_to_nav_history(
7885 &mut self,
7886 cursor_anchor: Anchor,
7887 new_position: Option<Point>,
7888 cx: &mut ViewContext<Self>,
7889 ) {
7890 if let Some(nav_history) = self.nav_history.as_mut() {
7891 let buffer = self.buffer.read(cx).read(cx);
7892 let cursor_position = cursor_anchor.to_point(&buffer);
7893 let scroll_state = self.scroll_manager.anchor();
7894 let scroll_top_row = scroll_state.top_row(&buffer);
7895 drop(buffer);
7896
7897 if let Some(new_position) = new_position {
7898 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7899 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7900 return;
7901 }
7902 }
7903
7904 nav_history.push(
7905 Some(NavigationData {
7906 cursor_anchor,
7907 cursor_position,
7908 scroll_anchor: scroll_state,
7909 scroll_top_row,
7910 }),
7911 cx,
7912 );
7913 }
7914 }
7915
7916 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7917 let buffer = self.buffer.read(cx).snapshot(cx);
7918 let mut selection = self.selections.first::<usize>(cx);
7919 selection.set_head(buffer.len(), SelectionGoal::None);
7920 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7921 s.select(vec![selection]);
7922 });
7923 }
7924
7925 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7926 let end = self.buffer.read(cx).read(cx).len();
7927 self.change_selections(None, cx, |s| {
7928 s.select_ranges(vec![0..end]);
7929 });
7930 }
7931
7932 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7933 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7934 let mut selections = self.selections.all::<Point>(cx);
7935 let max_point = display_map.buffer_snapshot.max_point();
7936 for selection in &mut selections {
7937 let rows = selection.spanned_rows(true, &display_map);
7938 selection.start = Point::new(rows.start.0, 0);
7939 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7940 selection.reversed = false;
7941 }
7942 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7943 s.select(selections);
7944 });
7945 }
7946
7947 pub fn split_selection_into_lines(
7948 &mut self,
7949 _: &SplitSelectionIntoLines,
7950 cx: &mut ViewContext<Self>,
7951 ) {
7952 let mut to_unfold = Vec::new();
7953 let mut new_selection_ranges = Vec::new();
7954 {
7955 let selections = self.selections.all::<Point>(cx);
7956 let buffer = self.buffer.read(cx).read(cx);
7957 for selection in selections {
7958 for row in selection.start.row..selection.end.row {
7959 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7960 new_selection_ranges.push(cursor..cursor);
7961 }
7962 new_selection_ranges.push(selection.end..selection.end);
7963 to_unfold.push(selection.start..selection.end);
7964 }
7965 }
7966 self.unfold_ranges(&to_unfold, true, true, cx);
7967 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7968 s.select_ranges(new_selection_ranges);
7969 });
7970 }
7971
7972 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7973 self.add_selection(true, cx);
7974 }
7975
7976 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7977 self.add_selection(false, cx);
7978 }
7979
7980 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7981 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7982 let mut selections = self.selections.all::<Point>(cx);
7983 let text_layout_details = self.text_layout_details(cx);
7984 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7985 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7986 let range = oldest_selection.display_range(&display_map).sorted();
7987
7988 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7989 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7990 let positions = start_x.min(end_x)..start_x.max(end_x);
7991
7992 selections.clear();
7993 let mut stack = Vec::new();
7994 for row in range.start.row().0..=range.end.row().0 {
7995 if let Some(selection) = self.selections.build_columnar_selection(
7996 &display_map,
7997 DisplayRow(row),
7998 &positions,
7999 oldest_selection.reversed,
8000 &text_layout_details,
8001 ) {
8002 stack.push(selection.id);
8003 selections.push(selection);
8004 }
8005 }
8006
8007 if above {
8008 stack.reverse();
8009 }
8010
8011 AddSelectionsState { above, stack }
8012 });
8013
8014 let last_added_selection = *state.stack.last().unwrap();
8015 let mut new_selections = Vec::new();
8016 if above == state.above {
8017 let end_row = if above {
8018 DisplayRow(0)
8019 } else {
8020 display_map.max_point().row()
8021 };
8022
8023 'outer: for selection in selections {
8024 if selection.id == last_added_selection {
8025 let range = selection.display_range(&display_map).sorted();
8026 debug_assert_eq!(range.start.row(), range.end.row());
8027 let mut row = range.start.row();
8028 let positions =
8029 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8030 px(start)..px(end)
8031 } else {
8032 let start_x =
8033 display_map.x_for_display_point(range.start, &text_layout_details);
8034 let end_x =
8035 display_map.x_for_display_point(range.end, &text_layout_details);
8036 start_x.min(end_x)..start_x.max(end_x)
8037 };
8038
8039 while row != end_row {
8040 if above {
8041 row.0 -= 1;
8042 } else {
8043 row.0 += 1;
8044 }
8045
8046 if let Some(new_selection) = self.selections.build_columnar_selection(
8047 &display_map,
8048 row,
8049 &positions,
8050 selection.reversed,
8051 &text_layout_details,
8052 ) {
8053 state.stack.push(new_selection.id);
8054 if above {
8055 new_selections.push(new_selection);
8056 new_selections.push(selection);
8057 } else {
8058 new_selections.push(selection);
8059 new_selections.push(new_selection);
8060 }
8061
8062 continue 'outer;
8063 }
8064 }
8065 }
8066
8067 new_selections.push(selection);
8068 }
8069 } else {
8070 new_selections = selections;
8071 new_selections.retain(|s| s.id != last_added_selection);
8072 state.stack.pop();
8073 }
8074
8075 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8076 s.select(new_selections);
8077 });
8078 if state.stack.len() > 1 {
8079 self.add_selections_state = Some(state);
8080 }
8081 }
8082
8083 pub fn select_next_match_internal(
8084 &mut self,
8085 display_map: &DisplaySnapshot,
8086 replace_newest: bool,
8087 autoscroll: Option<Autoscroll>,
8088 cx: &mut ViewContext<Self>,
8089 ) -> Result<()> {
8090 fn select_next_match_ranges(
8091 this: &mut Editor,
8092 range: Range<usize>,
8093 replace_newest: bool,
8094 auto_scroll: Option<Autoscroll>,
8095 cx: &mut ViewContext<Editor>,
8096 ) {
8097 this.unfold_ranges(&[range.clone()], false, true, cx);
8098 this.change_selections(auto_scroll, cx, |s| {
8099 if replace_newest {
8100 s.delete(s.newest_anchor().id);
8101 }
8102 s.insert_range(range.clone());
8103 });
8104 }
8105
8106 let buffer = &display_map.buffer_snapshot;
8107 let mut selections = self.selections.all::<usize>(cx);
8108 if let Some(mut select_next_state) = self.select_next_state.take() {
8109 let query = &select_next_state.query;
8110 if !select_next_state.done {
8111 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8112 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8113 let mut next_selected_range = None;
8114
8115 let bytes_after_last_selection =
8116 buffer.bytes_in_range(last_selection.end..buffer.len());
8117 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8118 let query_matches = query
8119 .stream_find_iter(bytes_after_last_selection)
8120 .map(|result| (last_selection.end, result))
8121 .chain(
8122 query
8123 .stream_find_iter(bytes_before_first_selection)
8124 .map(|result| (0, result)),
8125 );
8126
8127 for (start_offset, query_match) in query_matches {
8128 let query_match = query_match.unwrap(); // can only fail due to I/O
8129 let offset_range =
8130 start_offset + query_match.start()..start_offset + query_match.end();
8131 let display_range = offset_range.start.to_display_point(display_map)
8132 ..offset_range.end.to_display_point(display_map);
8133
8134 if !select_next_state.wordwise
8135 || (!movement::is_inside_word(display_map, display_range.start)
8136 && !movement::is_inside_word(display_map, display_range.end))
8137 {
8138 // TODO: This is n^2, because we might check all the selections
8139 if !selections
8140 .iter()
8141 .any(|selection| selection.range().overlaps(&offset_range))
8142 {
8143 next_selected_range = Some(offset_range);
8144 break;
8145 }
8146 }
8147 }
8148
8149 if let Some(next_selected_range) = next_selected_range {
8150 select_next_match_ranges(
8151 self,
8152 next_selected_range,
8153 replace_newest,
8154 autoscroll,
8155 cx,
8156 );
8157 } else {
8158 select_next_state.done = true;
8159 }
8160 }
8161
8162 self.select_next_state = Some(select_next_state);
8163 } else {
8164 let mut only_carets = true;
8165 let mut same_text_selected = true;
8166 let mut selected_text = None;
8167
8168 let mut selections_iter = selections.iter().peekable();
8169 while let Some(selection) = selections_iter.next() {
8170 if selection.start != selection.end {
8171 only_carets = false;
8172 }
8173
8174 if same_text_selected {
8175 if selected_text.is_none() {
8176 selected_text =
8177 Some(buffer.text_for_range(selection.range()).collect::<String>());
8178 }
8179
8180 if let Some(next_selection) = selections_iter.peek() {
8181 if next_selection.range().len() == selection.range().len() {
8182 let next_selected_text = buffer
8183 .text_for_range(next_selection.range())
8184 .collect::<String>();
8185 if Some(next_selected_text) != selected_text {
8186 same_text_selected = false;
8187 selected_text = None;
8188 }
8189 } else {
8190 same_text_selected = false;
8191 selected_text = None;
8192 }
8193 }
8194 }
8195 }
8196
8197 if only_carets {
8198 for selection in &mut selections {
8199 let word_range = movement::surrounding_word(
8200 display_map,
8201 selection.start.to_display_point(display_map),
8202 );
8203 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8204 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8205 selection.goal = SelectionGoal::None;
8206 selection.reversed = false;
8207 select_next_match_ranges(
8208 self,
8209 selection.start..selection.end,
8210 replace_newest,
8211 autoscroll,
8212 cx,
8213 );
8214 }
8215
8216 if selections.len() == 1 {
8217 let selection = selections
8218 .last()
8219 .expect("ensured that there's only one selection");
8220 let query = buffer
8221 .text_for_range(selection.start..selection.end)
8222 .collect::<String>();
8223 let is_empty = query.is_empty();
8224 let select_state = SelectNextState {
8225 query: AhoCorasick::new(&[query])?,
8226 wordwise: true,
8227 done: is_empty,
8228 };
8229 self.select_next_state = Some(select_state);
8230 } else {
8231 self.select_next_state = None;
8232 }
8233 } else if let Some(selected_text) = selected_text {
8234 self.select_next_state = Some(SelectNextState {
8235 query: AhoCorasick::new(&[selected_text])?,
8236 wordwise: false,
8237 done: false,
8238 });
8239 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8240 }
8241 }
8242 Ok(())
8243 }
8244
8245 pub fn select_all_matches(
8246 &mut self,
8247 _action: &SelectAllMatches,
8248 cx: &mut ViewContext<Self>,
8249 ) -> Result<()> {
8250 self.push_to_selection_history();
8251 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8252
8253 self.select_next_match_internal(&display_map, false, None, cx)?;
8254 let Some(select_next_state) = self.select_next_state.as_mut() else {
8255 return Ok(());
8256 };
8257 if select_next_state.done {
8258 return Ok(());
8259 }
8260
8261 let mut new_selections = self.selections.all::<usize>(cx);
8262
8263 let buffer = &display_map.buffer_snapshot;
8264 let query_matches = select_next_state
8265 .query
8266 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8267
8268 for query_match in query_matches {
8269 let query_match = query_match.unwrap(); // can only fail due to I/O
8270 let offset_range = query_match.start()..query_match.end();
8271 let display_range = offset_range.start.to_display_point(&display_map)
8272 ..offset_range.end.to_display_point(&display_map);
8273
8274 if !select_next_state.wordwise
8275 || (!movement::is_inside_word(&display_map, display_range.start)
8276 && !movement::is_inside_word(&display_map, display_range.end))
8277 {
8278 self.selections.change_with(cx, |selections| {
8279 new_selections.push(Selection {
8280 id: selections.new_selection_id(),
8281 start: offset_range.start,
8282 end: offset_range.end,
8283 reversed: false,
8284 goal: SelectionGoal::None,
8285 });
8286 });
8287 }
8288 }
8289
8290 new_selections.sort_by_key(|selection| selection.start);
8291 let mut ix = 0;
8292 while ix + 1 < new_selections.len() {
8293 let current_selection = &new_selections[ix];
8294 let next_selection = &new_selections[ix + 1];
8295 if current_selection.range().overlaps(&next_selection.range()) {
8296 if current_selection.id < next_selection.id {
8297 new_selections.remove(ix + 1);
8298 } else {
8299 new_selections.remove(ix);
8300 }
8301 } else {
8302 ix += 1;
8303 }
8304 }
8305
8306 select_next_state.done = true;
8307 self.unfold_ranges(
8308 &new_selections
8309 .iter()
8310 .map(|selection| selection.range())
8311 .collect::<Vec<_>>(),
8312 false,
8313 false,
8314 cx,
8315 );
8316 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8317 selections.select(new_selections)
8318 });
8319
8320 Ok(())
8321 }
8322
8323 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8324 self.push_to_selection_history();
8325 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8326 self.select_next_match_internal(
8327 &display_map,
8328 action.replace_newest,
8329 Some(Autoscroll::newest()),
8330 cx,
8331 )?;
8332 Ok(())
8333 }
8334
8335 pub fn select_previous(
8336 &mut self,
8337 action: &SelectPrevious,
8338 cx: &mut ViewContext<Self>,
8339 ) -> Result<()> {
8340 self.push_to_selection_history();
8341 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8342 let buffer = &display_map.buffer_snapshot;
8343 let mut selections = self.selections.all::<usize>(cx);
8344 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8345 let query = &select_prev_state.query;
8346 if !select_prev_state.done {
8347 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8348 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8349 let mut next_selected_range = None;
8350 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8351 let bytes_before_last_selection =
8352 buffer.reversed_bytes_in_range(0..last_selection.start);
8353 let bytes_after_first_selection =
8354 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8355 let query_matches = query
8356 .stream_find_iter(bytes_before_last_selection)
8357 .map(|result| (last_selection.start, result))
8358 .chain(
8359 query
8360 .stream_find_iter(bytes_after_first_selection)
8361 .map(|result| (buffer.len(), result)),
8362 );
8363 for (end_offset, query_match) in query_matches {
8364 let query_match = query_match.unwrap(); // can only fail due to I/O
8365 let offset_range =
8366 end_offset - query_match.end()..end_offset - query_match.start();
8367 let display_range = offset_range.start.to_display_point(&display_map)
8368 ..offset_range.end.to_display_point(&display_map);
8369
8370 if !select_prev_state.wordwise
8371 || (!movement::is_inside_word(&display_map, display_range.start)
8372 && !movement::is_inside_word(&display_map, display_range.end))
8373 {
8374 next_selected_range = Some(offset_range);
8375 break;
8376 }
8377 }
8378
8379 if let Some(next_selected_range) = next_selected_range {
8380 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8381 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8382 if action.replace_newest {
8383 s.delete(s.newest_anchor().id);
8384 }
8385 s.insert_range(next_selected_range);
8386 });
8387 } else {
8388 select_prev_state.done = true;
8389 }
8390 }
8391
8392 self.select_prev_state = Some(select_prev_state);
8393 } else {
8394 let mut only_carets = true;
8395 let mut same_text_selected = true;
8396 let mut selected_text = None;
8397
8398 let mut selections_iter = selections.iter().peekable();
8399 while let Some(selection) = selections_iter.next() {
8400 if selection.start != selection.end {
8401 only_carets = false;
8402 }
8403
8404 if same_text_selected {
8405 if selected_text.is_none() {
8406 selected_text =
8407 Some(buffer.text_for_range(selection.range()).collect::<String>());
8408 }
8409
8410 if let Some(next_selection) = selections_iter.peek() {
8411 if next_selection.range().len() == selection.range().len() {
8412 let next_selected_text = buffer
8413 .text_for_range(next_selection.range())
8414 .collect::<String>();
8415 if Some(next_selected_text) != selected_text {
8416 same_text_selected = false;
8417 selected_text = None;
8418 }
8419 } else {
8420 same_text_selected = false;
8421 selected_text = None;
8422 }
8423 }
8424 }
8425 }
8426
8427 if only_carets {
8428 for selection in &mut selections {
8429 let word_range = movement::surrounding_word(
8430 &display_map,
8431 selection.start.to_display_point(&display_map),
8432 );
8433 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8434 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8435 selection.goal = SelectionGoal::None;
8436 selection.reversed = false;
8437 }
8438 if selections.len() == 1 {
8439 let selection = selections
8440 .last()
8441 .expect("ensured that there's only one selection");
8442 let query = buffer
8443 .text_for_range(selection.start..selection.end)
8444 .collect::<String>();
8445 let is_empty = query.is_empty();
8446 let select_state = SelectNextState {
8447 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8448 wordwise: true,
8449 done: is_empty,
8450 };
8451 self.select_prev_state = Some(select_state);
8452 } else {
8453 self.select_prev_state = None;
8454 }
8455
8456 self.unfold_ranges(
8457 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8458 false,
8459 true,
8460 cx,
8461 );
8462 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8463 s.select(selections);
8464 });
8465 } else if let Some(selected_text) = selected_text {
8466 self.select_prev_state = Some(SelectNextState {
8467 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8468 wordwise: false,
8469 done: false,
8470 });
8471 self.select_previous(action, cx)?;
8472 }
8473 }
8474 Ok(())
8475 }
8476
8477 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8478 if self.read_only(cx) {
8479 return;
8480 }
8481 let text_layout_details = &self.text_layout_details(cx);
8482 self.transact(cx, |this, cx| {
8483 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8484 let mut edits = Vec::new();
8485 let mut selection_edit_ranges = Vec::new();
8486 let mut last_toggled_row = None;
8487 let snapshot = this.buffer.read(cx).read(cx);
8488 let empty_str: Arc<str> = Arc::default();
8489 let mut suffixes_inserted = Vec::new();
8490 let ignore_indent = action.ignore_indent;
8491
8492 fn comment_prefix_range(
8493 snapshot: &MultiBufferSnapshot,
8494 row: MultiBufferRow,
8495 comment_prefix: &str,
8496 comment_prefix_whitespace: &str,
8497 ignore_indent: bool,
8498 ) -> Range<Point> {
8499 let indent_size = if ignore_indent {
8500 0
8501 } else {
8502 snapshot.indent_size_for_line(row).len
8503 };
8504
8505 let start = Point::new(row.0, indent_size);
8506
8507 let mut line_bytes = snapshot
8508 .bytes_in_range(start..snapshot.max_point())
8509 .flatten()
8510 .copied();
8511
8512 // If this line currently begins with the line comment prefix, then record
8513 // the range containing the prefix.
8514 if line_bytes
8515 .by_ref()
8516 .take(comment_prefix.len())
8517 .eq(comment_prefix.bytes())
8518 {
8519 // Include any whitespace that matches the comment prefix.
8520 let matching_whitespace_len = line_bytes
8521 .zip(comment_prefix_whitespace.bytes())
8522 .take_while(|(a, b)| a == b)
8523 .count() as u32;
8524 let end = Point::new(
8525 start.row,
8526 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8527 );
8528 start..end
8529 } else {
8530 start..start
8531 }
8532 }
8533
8534 fn comment_suffix_range(
8535 snapshot: &MultiBufferSnapshot,
8536 row: MultiBufferRow,
8537 comment_suffix: &str,
8538 comment_suffix_has_leading_space: bool,
8539 ) -> Range<Point> {
8540 let end = Point::new(row.0, snapshot.line_len(row));
8541 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8542
8543 let mut line_end_bytes = snapshot
8544 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8545 .flatten()
8546 .copied();
8547
8548 let leading_space_len = if suffix_start_column > 0
8549 && line_end_bytes.next() == Some(b' ')
8550 && comment_suffix_has_leading_space
8551 {
8552 1
8553 } else {
8554 0
8555 };
8556
8557 // If this line currently begins with the line comment prefix, then record
8558 // the range containing the prefix.
8559 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8560 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8561 start..end
8562 } else {
8563 end..end
8564 }
8565 }
8566
8567 // TODO: Handle selections that cross excerpts
8568 for selection in &mut selections {
8569 let start_column = snapshot
8570 .indent_size_for_line(MultiBufferRow(selection.start.row))
8571 .len;
8572 let language = if let Some(language) =
8573 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8574 {
8575 language
8576 } else {
8577 continue;
8578 };
8579
8580 selection_edit_ranges.clear();
8581
8582 // If multiple selections contain a given row, avoid processing that
8583 // row more than once.
8584 let mut start_row = MultiBufferRow(selection.start.row);
8585 if last_toggled_row == Some(start_row) {
8586 start_row = start_row.next_row();
8587 }
8588 let end_row =
8589 if selection.end.row > selection.start.row && selection.end.column == 0 {
8590 MultiBufferRow(selection.end.row - 1)
8591 } else {
8592 MultiBufferRow(selection.end.row)
8593 };
8594 last_toggled_row = Some(end_row);
8595
8596 if start_row > end_row {
8597 continue;
8598 }
8599
8600 // If the language has line comments, toggle those.
8601 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8602
8603 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8604 if ignore_indent {
8605 full_comment_prefixes = full_comment_prefixes
8606 .into_iter()
8607 .map(|s| Arc::from(s.trim_end()))
8608 .collect();
8609 }
8610
8611 if !full_comment_prefixes.is_empty() {
8612 let first_prefix = full_comment_prefixes
8613 .first()
8614 .expect("prefixes is non-empty");
8615 let prefix_trimmed_lengths = full_comment_prefixes
8616 .iter()
8617 .map(|p| p.trim_end_matches(' ').len())
8618 .collect::<SmallVec<[usize; 4]>>();
8619
8620 let mut all_selection_lines_are_comments = true;
8621
8622 for row in start_row.0..=end_row.0 {
8623 let row = MultiBufferRow(row);
8624 if start_row < end_row && snapshot.is_line_blank(row) {
8625 continue;
8626 }
8627
8628 let prefix_range = full_comment_prefixes
8629 .iter()
8630 .zip(prefix_trimmed_lengths.iter().copied())
8631 .map(|(prefix, trimmed_prefix_len)| {
8632 comment_prefix_range(
8633 snapshot.deref(),
8634 row,
8635 &prefix[..trimmed_prefix_len],
8636 &prefix[trimmed_prefix_len..],
8637 ignore_indent,
8638 )
8639 })
8640 .max_by_key(|range| range.end.column - range.start.column)
8641 .expect("prefixes is non-empty");
8642
8643 if prefix_range.is_empty() {
8644 all_selection_lines_are_comments = false;
8645 }
8646
8647 selection_edit_ranges.push(prefix_range);
8648 }
8649
8650 if all_selection_lines_are_comments {
8651 edits.extend(
8652 selection_edit_ranges
8653 .iter()
8654 .cloned()
8655 .map(|range| (range, empty_str.clone())),
8656 );
8657 } else {
8658 let min_column = selection_edit_ranges
8659 .iter()
8660 .map(|range| range.start.column)
8661 .min()
8662 .unwrap_or(0);
8663 edits.extend(selection_edit_ranges.iter().map(|range| {
8664 let position = Point::new(range.start.row, min_column);
8665 (position..position, first_prefix.clone())
8666 }));
8667 }
8668 } else if let Some((full_comment_prefix, comment_suffix)) =
8669 language.block_comment_delimiters()
8670 {
8671 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8672 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8673 let prefix_range = comment_prefix_range(
8674 snapshot.deref(),
8675 start_row,
8676 comment_prefix,
8677 comment_prefix_whitespace,
8678 ignore_indent,
8679 );
8680 let suffix_range = comment_suffix_range(
8681 snapshot.deref(),
8682 end_row,
8683 comment_suffix.trim_start_matches(' '),
8684 comment_suffix.starts_with(' '),
8685 );
8686
8687 if prefix_range.is_empty() || suffix_range.is_empty() {
8688 edits.push((
8689 prefix_range.start..prefix_range.start,
8690 full_comment_prefix.clone(),
8691 ));
8692 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8693 suffixes_inserted.push((end_row, comment_suffix.len()));
8694 } else {
8695 edits.push((prefix_range, empty_str.clone()));
8696 edits.push((suffix_range, empty_str.clone()));
8697 }
8698 } else {
8699 continue;
8700 }
8701 }
8702
8703 drop(snapshot);
8704 this.buffer.update(cx, |buffer, cx| {
8705 buffer.edit(edits, None, cx);
8706 });
8707
8708 // Adjust selections so that they end before any comment suffixes that
8709 // were inserted.
8710 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8711 let mut selections = this.selections.all::<Point>(cx);
8712 let snapshot = this.buffer.read(cx).read(cx);
8713 for selection in &mut selections {
8714 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8715 match row.cmp(&MultiBufferRow(selection.end.row)) {
8716 Ordering::Less => {
8717 suffixes_inserted.next();
8718 continue;
8719 }
8720 Ordering::Greater => break,
8721 Ordering::Equal => {
8722 if selection.end.column == snapshot.line_len(row) {
8723 if selection.is_empty() {
8724 selection.start.column -= suffix_len as u32;
8725 }
8726 selection.end.column -= suffix_len as u32;
8727 }
8728 break;
8729 }
8730 }
8731 }
8732 }
8733
8734 drop(snapshot);
8735 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8736
8737 let selections = this.selections.all::<Point>(cx);
8738 let selections_on_single_row = selections.windows(2).all(|selections| {
8739 selections[0].start.row == selections[1].start.row
8740 && selections[0].end.row == selections[1].end.row
8741 && selections[0].start.row == selections[0].end.row
8742 });
8743 let selections_selecting = selections
8744 .iter()
8745 .any(|selection| selection.start != selection.end);
8746 let advance_downwards = action.advance_downwards
8747 && selections_on_single_row
8748 && !selections_selecting
8749 && !matches!(this.mode, EditorMode::SingleLine { .. });
8750
8751 if advance_downwards {
8752 let snapshot = this.buffer.read(cx).snapshot(cx);
8753
8754 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8755 s.move_cursors_with(|display_snapshot, display_point, _| {
8756 let mut point = display_point.to_point(display_snapshot);
8757 point.row += 1;
8758 point = snapshot.clip_point(point, Bias::Left);
8759 let display_point = point.to_display_point(display_snapshot);
8760 let goal = SelectionGoal::HorizontalPosition(
8761 display_snapshot
8762 .x_for_display_point(display_point, text_layout_details)
8763 .into(),
8764 );
8765 (display_point, goal)
8766 })
8767 });
8768 }
8769 });
8770 }
8771
8772 pub fn select_enclosing_symbol(
8773 &mut self,
8774 _: &SelectEnclosingSymbol,
8775 cx: &mut ViewContext<Self>,
8776 ) {
8777 let buffer = self.buffer.read(cx).snapshot(cx);
8778 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8779
8780 fn update_selection(
8781 selection: &Selection<usize>,
8782 buffer_snap: &MultiBufferSnapshot,
8783 ) -> Option<Selection<usize>> {
8784 let cursor = selection.head();
8785 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8786 for symbol in symbols.iter().rev() {
8787 let start = symbol.range.start.to_offset(buffer_snap);
8788 let end = symbol.range.end.to_offset(buffer_snap);
8789 let new_range = start..end;
8790 if start < selection.start || end > selection.end {
8791 return Some(Selection {
8792 id: selection.id,
8793 start: new_range.start,
8794 end: new_range.end,
8795 goal: SelectionGoal::None,
8796 reversed: selection.reversed,
8797 });
8798 }
8799 }
8800 None
8801 }
8802
8803 let mut selected_larger_symbol = false;
8804 let new_selections = old_selections
8805 .iter()
8806 .map(|selection| match update_selection(selection, &buffer) {
8807 Some(new_selection) => {
8808 if new_selection.range() != selection.range() {
8809 selected_larger_symbol = true;
8810 }
8811 new_selection
8812 }
8813 None => selection.clone(),
8814 })
8815 .collect::<Vec<_>>();
8816
8817 if selected_larger_symbol {
8818 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8819 s.select(new_selections);
8820 });
8821 }
8822 }
8823
8824 pub fn select_larger_syntax_node(
8825 &mut self,
8826 _: &SelectLargerSyntaxNode,
8827 cx: &mut ViewContext<Self>,
8828 ) {
8829 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8830 let buffer = self.buffer.read(cx).snapshot(cx);
8831 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8832
8833 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8834 let mut selected_larger_node = false;
8835 let new_selections = old_selections
8836 .iter()
8837 .map(|selection| {
8838 let old_range = selection.start..selection.end;
8839 let mut new_range = old_range.clone();
8840 let mut new_node = None;
8841 while let Some((node, containing_range)) = buffer.syntax_ancestor(new_range.clone())
8842 {
8843 new_node = Some(node);
8844 new_range = containing_range;
8845 if !display_map.intersects_fold(new_range.start)
8846 && !display_map.intersects_fold(new_range.end)
8847 {
8848 break;
8849 }
8850 }
8851
8852 if let Some(node) = new_node {
8853 // Log the ancestor, to support using this action as a way to explore TreeSitter
8854 // nodes. Parent and grandparent are also logged because this operation will not
8855 // visit nodes that have the same range as their parent.
8856 log::info!("Node: {node:?}");
8857 let parent = node.parent();
8858 log::info!("Parent: {parent:?}");
8859 let grandparent = parent.and_then(|x| x.parent());
8860 log::info!("Grandparent: {grandparent:?}");
8861 }
8862
8863 selected_larger_node |= new_range != old_range;
8864 Selection {
8865 id: selection.id,
8866 start: new_range.start,
8867 end: new_range.end,
8868 goal: SelectionGoal::None,
8869 reversed: selection.reversed,
8870 }
8871 })
8872 .collect::<Vec<_>>();
8873
8874 if selected_larger_node {
8875 stack.push(old_selections);
8876 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8877 s.select(new_selections);
8878 });
8879 }
8880 self.select_larger_syntax_node_stack = stack;
8881 }
8882
8883 pub fn select_smaller_syntax_node(
8884 &mut self,
8885 _: &SelectSmallerSyntaxNode,
8886 cx: &mut ViewContext<Self>,
8887 ) {
8888 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8889 if let Some(selections) = stack.pop() {
8890 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8891 s.select(selections.to_vec());
8892 });
8893 }
8894 self.select_larger_syntax_node_stack = stack;
8895 }
8896
8897 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8898 if !EditorSettings::get_global(cx).gutter.runnables {
8899 self.clear_tasks();
8900 return Task::ready(());
8901 }
8902 let project = self.project.as_ref().map(Model::downgrade);
8903 cx.spawn(|this, mut cx| async move {
8904 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
8905 let Some(project) = project.and_then(|p| p.upgrade()) else {
8906 return;
8907 };
8908 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8909 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8910 }) else {
8911 return;
8912 };
8913
8914 let hide_runnables = project
8915 .update(&mut cx, |project, cx| {
8916 // Do not display any test indicators in non-dev server remote projects.
8917 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8918 })
8919 .unwrap_or(true);
8920 if hide_runnables {
8921 return;
8922 }
8923 let new_rows =
8924 cx.background_executor()
8925 .spawn({
8926 let snapshot = display_snapshot.clone();
8927 async move {
8928 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8929 }
8930 })
8931 .await;
8932 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8933
8934 this.update(&mut cx, |this, _| {
8935 this.clear_tasks();
8936 for (key, value) in rows {
8937 this.insert_tasks(key, value);
8938 }
8939 })
8940 .ok();
8941 })
8942 }
8943 fn fetch_runnable_ranges(
8944 snapshot: &DisplaySnapshot,
8945 range: Range<Anchor>,
8946 ) -> Vec<language::RunnableRange> {
8947 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8948 }
8949
8950 fn runnable_rows(
8951 project: Model<Project>,
8952 snapshot: DisplaySnapshot,
8953 runnable_ranges: Vec<RunnableRange>,
8954 mut cx: AsyncWindowContext,
8955 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8956 runnable_ranges
8957 .into_iter()
8958 .filter_map(|mut runnable| {
8959 let tasks = cx
8960 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8961 .ok()?;
8962 if tasks.is_empty() {
8963 return None;
8964 }
8965
8966 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8967
8968 let row = snapshot
8969 .buffer_snapshot
8970 .buffer_line_for_row(MultiBufferRow(point.row))?
8971 .1
8972 .start
8973 .row;
8974
8975 let context_range =
8976 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8977 Some((
8978 (runnable.buffer_id, row),
8979 RunnableTasks {
8980 templates: tasks,
8981 offset: MultiBufferOffset(runnable.run_range.start),
8982 context_range,
8983 column: point.column,
8984 extra_variables: runnable.extra_captures,
8985 },
8986 ))
8987 })
8988 .collect()
8989 }
8990
8991 fn templates_with_tags(
8992 project: &Model<Project>,
8993 runnable: &mut Runnable,
8994 cx: &WindowContext,
8995 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8996 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8997 let (worktree_id, file) = project
8998 .buffer_for_id(runnable.buffer, cx)
8999 .and_then(|buffer| buffer.read(cx).file())
9000 .map(|file| (file.worktree_id(cx), file.clone()))
9001 .unzip();
9002
9003 (
9004 project.task_store().read(cx).task_inventory().cloned(),
9005 worktree_id,
9006 file,
9007 )
9008 });
9009
9010 let tags = mem::take(&mut runnable.tags);
9011 let mut tags: Vec<_> = tags
9012 .into_iter()
9013 .flat_map(|tag| {
9014 let tag = tag.0.clone();
9015 inventory
9016 .as_ref()
9017 .into_iter()
9018 .flat_map(|inventory| {
9019 inventory.read(cx).list_tasks(
9020 file.clone(),
9021 Some(runnable.language.clone()),
9022 worktree_id,
9023 cx,
9024 )
9025 })
9026 .filter(move |(_, template)| {
9027 template.tags.iter().any(|source_tag| source_tag == &tag)
9028 })
9029 })
9030 .sorted_by_key(|(kind, _)| kind.to_owned())
9031 .collect();
9032 if let Some((leading_tag_source, _)) = tags.first() {
9033 // Strongest source wins; if we have worktree tag binding, prefer that to
9034 // global and language bindings;
9035 // if we have a global binding, prefer that to language binding.
9036 let first_mismatch = tags
9037 .iter()
9038 .position(|(tag_source, _)| tag_source != leading_tag_source);
9039 if let Some(index) = first_mismatch {
9040 tags.truncate(index);
9041 }
9042 }
9043
9044 tags
9045 }
9046
9047 pub fn move_to_enclosing_bracket(
9048 &mut self,
9049 _: &MoveToEnclosingBracket,
9050 cx: &mut ViewContext<Self>,
9051 ) {
9052 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9053 s.move_offsets_with(|snapshot, selection| {
9054 let Some(enclosing_bracket_ranges) =
9055 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9056 else {
9057 return;
9058 };
9059
9060 let mut best_length = usize::MAX;
9061 let mut best_inside = false;
9062 let mut best_in_bracket_range = false;
9063 let mut best_destination = None;
9064 for (open, close) in enclosing_bracket_ranges {
9065 let close = close.to_inclusive();
9066 let length = close.end() - open.start;
9067 let inside = selection.start >= open.end && selection.end <= *close.start();
9068 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9069 || close.contains(&selection.head());
9070
9071 // If best is next to a bracket and current isn't, skip
9072 if !in_bracket_range && best_in_bracket_range {
9073 continue;
9074 }
9075
9076 // Prefer smaller lengths unless best is inside and current isn't
9077 if length > best_length && (best_inside || !inside) {
9078 continue;
9079 }
9080
9081 best_length = length;
9082 best_inside = inside;
9083 best_in_bracket_range = in_bracket_range;
9084 best_destination = Some(
9085 if close.contains(&selection.start) && close.contains(&selection.end) {
9086 if inside {
9087 open.end
9088 } else {
9089 open.start
9090 }
9091 } else if inside {
9092 *close.start()
9093 } else {
9094 *close.end()
9095 },
9096 );
9097 }
9098
9099 if let Some(destination) = best_destination {
9100 selection.collapse_to(destination, SelectionGoal::None);
9101 }
9102 })
9103 });
9104 }
9105
9106 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9107 self.end_selection(cx);
9108 self.selection_history.mode = SelectionHistoryMode::Undoing;
9109 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9110 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9111 self.select_next_state = entry.select_next_state;
9112 self.select_prev_state = entry.select_prev_state;
9113 self.add_selections_state = entry.add_selections_state;
9114 self.request_autoscroll(Autoscroll::newest(), cx);
9115 }
9116 self.selection_history.mode = SelectionHistoryMode::Normal;
9117 }
9118
9119 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9120 self.end_selection(cx);
9121 self.selection_history.mode = SelectionHistoryMode::Redoing;
9122 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9123 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9124 self.select_next_state = entry.select_next_state;
9125 self.select_prev_state = entry.select_prev_state;
9126 self.add_selections_state = entry.add_selections_state;
9127 self.request_autoscroll(Autoscroll::newest(), cx);
9128 }
9129 self.selection_history.mode = SelectionHistoryMode::Normal;
9130 }
9131
9132 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9133 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9134 }
9135
9136 pub fn expand_excerpts_down(
9137 &mut self,
9138 action: &ExpandExcerptsDown,
9139 cx: &mut ViewContext<Self>,
9140 ) {
9141 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9142 }
9143
9144 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9145 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9146 }
9147
9148 pub fn expand_excerpts_for_direction(
9149 &mut self,
9150 lines: u32,
9151 direction: ExpandExcerptDirection,
9152 cx: &mut ViewContext<Self>,
9153 ) {
9154 let selections = self.selections.disjoint_anchors();
9155
9156 let lines = if lines == 0 {
9157 EditorSettings::get_global(cx).expand_excerpt_lines
9158 } else {
9159 lines
9160 };
9161
9162 self.buffer.update(cx, |buffer, cx| {
9163 let snapshot = buffer.snapshot(cx);
9164 let mut excerpt_ids = selections
9165 .iter()
9166 .flat_map(|selection| {
9167 snapshot
9168 .excerpts_for_range(selection.range())
9169 .map(|excerpt| excerpt.id())
9170 })
9171 .collect::<Vec<_>>();
9172 excerpt_ids.sort();
9173 excerpt_ids.dedup();
9174 buffer.expand_excerpts(excerpt_ids, lines, direction, cx)
9175 })
9176 }
9177
9178 pub fn expand_excerpt(
9179 &mut self,
9180 excerpt: ExcerptId,
9181 direction: ExpandExcerptDirection,
9182 cx: &mut ViewContext<Self>,
9183 ) {
9184 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9185 self.buffer.update(cx, |buffer, cx| {
9186 buffer.expand_excerpts([excerpt], lines, direction, cx)
9187 })
9188 }
9189
9190 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9191 self.go_to_diagnostic_impl(Direction::Next, cx)
9192 }
9193
9194 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9195 self.go_to_diagnostic_impl(Direction::Prev, cx)
9196 }
9197
9198 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9199 let buffer = self.buffer.read(cx).snapshot(cx);
9200 let selection = self.selections.newest::<usize>(cx);
9201
9202 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9203 if direction == Direction::Next {
9204 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9205 self.activate_diagnostics(popover.group_id(), cx);
9206 if let Some(active_diagnostics) = self.active_diagnostics.as_ref() {
9207 let primary_range_start = active_diagnostics.primary_range.start;
9208 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9209 let mut new_selection = s.newest_anchor().clone();
9210 new_selection.collapse_to(primary_range_start, SelectionGoal::None);
9211 s.select_anchors(vec![new_selection.clone()]);
9212 });
9213 }
9214 return;
9215 }
9216 }
9217
9218 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9219 active_diagnostics
9220 .primary_range
9221 .to_offset(&buffer)
9222 .to_inclusive()
9223 });
9224 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9225 if active_primary_range.contains(&selection.head()) {
9226 *active_primary_range.start()
9227 } else {
9228 selection.head()
9229 }
9230 } else {
9231 selection.head()
9232 };
9233 let snapshot = self.snapshot(cx);
9234 loop {
9235 let diagnostics = if direction == Direction::Prev {
9236 buffer
9237 .diagnostics_in_range(0..search_start, true)
9238 .map(|DiagnosticEntry { diagnostic, range }| DiagnosticEntry {
9239 diagnostic,
9240 range: range.to_offset(&buffer),
9241 })
9242 .collect::<Vec<_>>()
9243 } else {
9244 buffer
9245 .diagnostics_in_range(search_start..buffer.len(), false)
9246 .map(|DiagnosticEntry { diagnostic, range }| DiagnosticEntry {
9247 diagnostic,
9248 range: range.to_offset(&buffer),
9249 })
9250 .collect::<Vec<_>>()
9251 }
9252 .into_iter()
9253 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9254 let group = diagnostics
9255 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9256 // be sorted in a stable way
9257 // skip until we are at current active diagnostic, if it exists
9258 .skip_while(|entry| {
9259 (match direction {
9260 Direction::Prev => entry.range.start >= search_start,
9261 Direction::Next => entry.range.start <= search_start,
9262 }) && self
9263 .active_diagnostics
9264 .as_ref()
9265 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9266 })
9267 .find_map(|entry| {
9268 if entry.diagnostic.is_primary
9269 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9270 && !entry.range.is_empty()
9271 // if we match with the active diagnostic, skip it
9272 && Some(entry.diagnostic.group_id)
9273 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9274 {
9275 Some((entry.range, entry.diagnostic.group_id))
9276 } else {
9277 None
9278 }
9279 });
9280
9281 if let Some((primary_range, group_id)) = group {
9282 self.activate_diagnostics(group_id, cx);
9283 if self.active_diagnostics.is_some() {
9284 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9285 s.select(vec![Selection {
9286 id: selection.id,
9287 start: primary_range.start,
9288 end: primary_range.start,
9289 reversed: false,
9290 goal: SelectionGoal::None,
9291 }]);
9292 });
9293 }
9294 break;
9295 } else {
9296 // Cycle around to the start of the buffer, potentially moving back to the start of
9297 // the currently active diagnostic.
9298 active_primary_range.take();
9299 if direction == Direction::Prev {
9300 if search_start == buffer.len() {
9301 break;
9302 } else {
9303 search_start = buffer.len();
9304 }
9305 } else if search_start == 0 {
9306 break;
9307 } else {
9308 search_start = 0;
9309 }
9310 }
9311 }
9312 }
9313
9314 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9315 let snapshot = self.snapshot(cx);
9316 let selection = self.selections.newest::<Point>(cx);
9317 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9318 }
9319
9320 fn go_to_hunk_after_position(
9321 &mut self,
9322 snapshot: &EditorSnapshot,
9323 position: Point,
9324 cx: &mut ViewContext<Editor>,
9325 ) -> Option<MultiBufferDiffHunk> {
9326 for (ix, position) in [position, Point::zero()].into_iter().enumerate() {
9327 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9328 snapshot,
9329 position,
9330 ix > 0,
9331 snapshot.diff_map.diff_hunks_in_range(
9332 position + Point::new(1, 0)..snapshot.buffer_snapshot.max_point(),
9333 &snapshot.buffer_snapshot,
9334 ),
9335 cx,
9336 ) {
9337 return Some(hunk);
9338 }
9339 }
9340 None
9341 }
9342
9343 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9344 let snapshot = self.snapshot(cx);
9345 let selection = self.selections.newest::<Point>(cx);
9346 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9347 }
9348
9349 fn go_to_hunk_before_position(
9350 &mut self,
9351 snapshot: &EditorSnapshot,
9352 position: Point,
9353 cx: &mut ViewContext<Editor>,
9354 ) -> Option<MultiBufferDiffHunk> {
9355 for (ix, position) in [position, snapshot.buffer_snapshot.max_point()]
9356 .into_iter()
9357 .enumerate()
9358 {
9359 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9360 snapshot,
9361 position,
9362 ix > 0,
9363 snapshot
9364 .diff_map
9365 .diff_hunks_in_range_rev(Point::zero()..position, &snapshot.buffer_snapshot),
9366 cx,
9367 ) {
9368 return Some(hunk);
9369 }
9370 }
9371 None
9372 }
9373
9374 fn go_to_next_hunk_in_direction(
9375 &mut self,
9376 snapshot: &DisplaySnapshot,
9377 initial_point: Point,
9378 is_wrapped: bool,
9379 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9380 cx: &mut ViewContext<Editor>,
9381 ) -> Option<MultiBufferDiffHunk> {
9382 let display_point = initial_point.to_display_point(snapshot);
9383 let mut hunks = hunks
9384 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9385 .filter(|(display_hunk, _)| {
9386 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9387 })
9388 .dedup();
9389
9390 if let Some((display_hunk, hunk)) = hunks.next() {
9391 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9392 let row = display_hunk.start_display_row();
9393 let point = DisplayPoint::new(row, 0);
9394 s.select_display_ranges([point..point]);
9395 });
9396
9397 Some(hunk)
9398 } else {
9399 None
9400 }
9401 }
9402
9403 pub fn go_to_definition(
9404 &mut self,
9405 _: &GoToDefinition,
9406 cx: &mut ViewContext<Self>,
9407 ) -> Task<Result<Navigated>> {
9408 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9409 cx.spawn(|editor, mut cx| async move {
9410 if definition.await? == Navigated::Yes {
9411 return Ok(Navigated::Yes);
9412 }
9413 match editor.update(&mut cx, |editor, cx| {
9414 editor.find_all_references(&FindAllReferences, cx)
9415 })? {
9416 Some(references) => references.await,
9417 None => Ok(Navigated::No),
9418 }
9419 })
9420 }
9421
9422 pub fn go_to_declaration(
9423 &mut self,
9424 _: &GoToDeclaration,
9425 cx: &mut ViewContext<Self>,
9426 ) -> Task<Result<Navigated>> {
9427 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9428 }
9429
9430 pub fn go_to_declaration_split(
9431 &mut self,
9432 _: &GoToDeclaration,
9433 cx: &mut ViewContext<Self>,
9434 ) -> Task<Result<Navigated>> {
9435 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9436 }
9437
9438 pub fn go_to_implementation(
9439 &mut self,
9440 _: &GoToImplementation,
9441 cx: &mut ViewContext<Self>,
9442 ) -> Task<Result<Navigated>> {
9443 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9444 }
9445
9446 pub fn go_to_implementation_split(
9447 &mut self,
9448 _: &GoToImplementationSplit,
9449 cx: &mut ViewContext<Self>,
9450 ) -> Task<Result<Navigated>> {
9451 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9452 }
9453
9454 pub fn go_to_type_definition(
9455 &mut self,
9456 _: &GoToTypeDefinition,
9457 cx: &mut ViewContext<Self>,
9458 ) -> Task<Result<Navigated>> {
9459 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9460 }
9461
9462 pub fn go_to_definition_split(
9463 &mut self,
9464 _: &GoToDefinitionSplit,
9465 cx: &mut ViewContext<Self>,
9466 ) -> Task<Result<Navigated>> {
9467 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9468 }
9469
9470 pub fn go_to_type_definition_split(
9471 &mut self,
9472 _: &GoToTypeDefinitionSplit,
9473 cx: &mut ViewContext<Self>,
9474 ) -> Task<Result<Navigated>> {
9475 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9476 }
9477
9478 fn go_to_definition_of_kind(
9479 &mut self,
9480 kind: GotoDefinitionKind,
9481 split: bool,
9482 cx: &mut ViewContext<Self>,
9483 ) -> Task<Result<Navigated>> {
9484 let Some(provider) = self.semantics_provider.clone() else {
9485 return Task::ready(Ok(Navigated::No));
9486 };
9487 let head = self.selections.newest::<usize>(cx).head();
9488 let buffer = self.buffer.read(cx);
9489 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9490 text_anchor
9491 } else {
9492 return Task::ready(Ok(Navigated::No));
9493 };
9494
9495 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9496 return Task::ready(Ok(Navigated::No));
9497 };
9498
9499 cx.spawn(|editor, mut cx| async move {
9500 let definitions = definitions.await?;
9501 let navigated = editor
9502 .update(&mut cx, |editor, cx| {
9503 editor.navigate_to_hover_links(
9504 Some(kind),
9505 definitions
9506 .into_iter()
9507 .filter(|location| {
9508 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9509 })
9510 .map(HoverLink::Text)
9511 .collect::<Vec<_>>(),
9512 split,
9513 cx,
9514 )
9515 })?
9516 .await?;
9517 anyhow::Ok(navigated)
9518 })
9519 }
9520
9521 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9522 let selection = self.selections.newest_anchor();
9523 let head = selection.head();
9524 let tail = selection.tail();
9525
9526 let Some((buffer, start_position)) =
9527 self.buffer.read(cx).text_anchor_for_position(head, cx)
9528 else {
9529 return;
9530 };
9531
9532 let end_position = if head != tail {
9533 let Some((_, pos)) = self.buffer.read(cx).text_anchor_for_position(tail, cx) else {
9534 return;
9535 };
9536 Some(pos)
9537 } else {
9538 None
9539 };
9540
9541 let url_finder = cx.spawn(|editor, mut cx| async move {
9542 let url = if let Some(end_pos) = end_position {
9543 find_url_from_range(&buffer, start_position..end_pos, cx.clone())
9544 } else {
9545 find_url(&buffer, start_position, cx.clone()).map(|(_, url)| url)
9546 };
9547
9548 if let Some(url) = url {
9549 editor.update(&mut cx, |_, cx| {
9550 cx.open_url(&url);
9551 })
9552 } else {
9553 Ok(())
9554 }
9555 });
9556
9557 url_finder.detach();
9558 }
9559
9560 pub fn open_selected_filename(&mut self, _: &OpenSelectedFilename, cx: &mut ViewContext<Self>) {
9561 let Some(workspace) = self.workspace() else {
9562 return;
9563 };
9564
9565 let position = self.selections.newest_anchor().head();
9566
9567 let Some((buffer, buffer_position)) =
9568 self.buffer.read(cx).text_anchor_for_position(position, cx)
9569 else {
9570 return;
9571 };
9572
9573 let project = self.project.clone();
9574
9575 cx.spawn(|_, mut cx| async move {
9576 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9577
9578 if let Some((_, path)) = result {
9579 workspace
9580 .update(&mut cx, |workspace, cx| {
9581 workspace.open_resolved_path(path, cx)
9582 })?
9583 .await?;
9584 }
9585 anyhow::Ok(())
9586 })
9587 .detach();
9588 }
9589
9590 pub(crate) fn navigate_to_hover_links(
9591 &mut self,
9592 kind: Option<GotoDefinitionKind>,
9593 mut definitions: Vec<HoverLink>,
9594 split: bool,
9595 cx: &mut ViewContext<Editor>,
9596 ) -> Task<Result<Navigated>> {
9597 // If there is one definition, just open it directly
9598 if definitions.len() == 1 {
9599 let definition = definitions.pop().unwrap();
9600
9601 enum TargetTaskResult {
9602 Location(Option<Location>),
9603 AlreadyNavigated,
9604 }
9605
9606 let target_task = match definition {
9607 HoverLink::Text(link) => {
9608 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9609 }
9610 HoverLink::InlayHint(lsp_location, server_id) => {
9611 let computation = self.compute_target_location(lsp_location, server_id, cx);
9612 cx.background_executor().spawn(async move {
9613 let location = computation.await?;
9614 Ok(TargetTaskResult::Location(location))
9615 })
9616 }
9617 HoverLink::Url(url) => {
9618 cx.open_url(&url);
9619 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9620 }
9621 HoverLink::File(path) => {
9622 if let Some(workspace) = self.workspace() {
9623 cx.spawn(|_, mut cx| async move {
9624 workspace
9625 .update(&mut cx, |workspace, cx| {
9626 workspace.open_resolved_path(path, cx)
9627 })?
9628 .await
9629 .map(|_| TargetTaskResult::AlreadyNavigated)
9630 })
9631 } else {
9632 Task::ready(Ok(TargetTaskResult::Location(None)))
9633 }
9634 }
9635 };
9636 cx.spawn(|editor, mut cx| async move {
9637 let target = match target_task.await.context("target resolution task")? {
9638 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9639 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9640 TargetTaskResult::Location(Some(target)) => target,
9641 };
9642
9643 editor.update(&mut cx, |editor, cx| {
9644 let Some(workspace) = editor.workspace() else {
9645 return Navigated::No;
9646 };
9647 let pane = workspace.read(cx).active_pane().clone();
9648
9649 let range = target.range.to_offset(target.buffer.read(cx));
9650 let range = editor.range_for_match(&range);
9651
9652 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9653 let buffer = target.buffer.read(cx);
9654 let range = check_multiline_range(buffer, range);
9655 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9656 s.select_ranges([range]);
9657 });
9658 } else {
9659 cx.window_context().defer(move |cx| {
9660 let target_editor: View<Self> =
9661 workspace.update(cx, |workspace, cx| {
9662 let pane = if split {
9663 workspace.adjacent_pane(cx)
9664 } else {
9665 workspace.active_pane().clone()
9666 };
9667
9668 workspace.open_project_item(
9669 pane,
9670 target.buffer.clone(),
9671 true,
9672 true,
9673 cx,
9674 )
9675 });
9676 target_editor.update(cx, |target_editor, cx| {
9677 // When selecting a definition in a different buffer, disable the nav history
9678 // to avoid creating a history entry at the previous cursor location.
9679 pane.update(cx, |pane, _| pane.disable_history());
9680 let buffer = target.buffer.read(cx);
9681 let range = check_multiline_range(buffer, range);
9682 target_editor.change_selections(
9683 Some(Autoscroll::focused()),
9684 cx,
9685 |s| {
9686 s.select_ranges([range]);
9687 },
9688 );
9689 pane.update(cx, |pane, _| pane.enable_history());
9690 });
9691 });
9692 }
9693 Navigated::Yes
9694 })
9695 })
9696 } else if !definitions.is_empty() {
9697 cx.spawn(|editor, mut cx| async move {
9698 let (title, location_tasks, workspace) = editor
9699 .update(&mut cx, |editor, cx| {
9700 let tab_kind = match kind {
9701 Some(GotoDefinitionKind::Implementation) => "Implementations",
9702 _ => "Definitions",
9703 };
9704 let title = definitions
9705 .iter()
9706 .find_map(|definition| match definition {
9707 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9708 let buffer = origin.buffer.read(cx);
9709 format!(
9710 "{} for {}",
9711 tab_kind,
9712 buffer
9713 .text_for_range(origin.range.clone())
9714 .collect::<String>()
9715 )
9716 }),
9717 HoverLink::InlayHint(_, _) => None,
9718 HoverLink::Url(_) => None,
9719 HoverLink::File(_) => None,
9720 })
9721 .unwrap_or(tab_kind.to_string());
9722 let location_tasks = definitions
9723 .into_iter()
9724 .map(|definition| match definition {
9725 HoverLink::Text(link) => Task::ready(Ok(Some(link.target))),
9726 HoverLink::InlayHint(lsp_location, server_id) => {
9727 editor.compute_target_location(lsp_location, server_id, cx)
9728 }
9729 HoverLink::Url(_) => Task::ready(Ok(None)),
9730 HoverLink::File(_) => Task::ready(Ok(None)),
9731 })
9732 .collect::<Vec<_>>();
9733 (title, location_tasks, editor.workspace().clone())
9734 })
9735 .context("location tasks preparation")?;
9736
9737 let locations = future::join_all(location_tasks)
9738 .await
9739 .into_iter()
9740 .filter_map(|location| location.transpose())
9741 .collect::<Result<_>>()
9742 .context("location tasks")?;
9743
9744 let Some(workspace) = workspace else {
9745 return Ok(Navigated::No);
9746 };
9747 let opened = workspace
9748 .update(&mut cx, |workspace, cx| {
9749 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9750 })
9751 .ok();
9752
9753 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9754 })
9755 } else {
9756 Task::ready(Ok(Navigated::No))
9757 }
9758 }
9759
9760 fn compute_target_location(
9761 &self,
9762 lsp_location: lsp::Location,
9763 server_id: LanguageServerId,
9764 cx: &mut ViewContext<Self>,
9765 ) -> Task<anyhow::Result<Option<Location>>> {
9766 let Some(project) = self.project.clone() else {
9767 return Task::ready(Ok(None));
9768 };
9769
9770 cx.spawn(move |editor, mut cx| async move {
9771 let location_task = editor.update(&mut cx, |_, cx| {
9772 project.update(cx, |project, cx| {
9773 let language_server_name = project
9774 .language_server_statuses(cx)
9775 .find(|(id, _)| server_id == *id)
9776 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9777 language_server_name.map(|language_server_name| {
9778 project.open_local_buffer_via_lsp(
9779 lsp_location.uri.clone(),
9780 server_id,
9781 language_server_name,
9782 cx,
9783 )
9784 })
9785 })
9786 })?;
9787 let location = match location_task {
9788 Some(task) => Some({
9789 let target_buffer_handle = task.await.context("open local buffer")?;
9790 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9791 let target_start = target_buffer
9792 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9793 let target_end = target_buffer
9794 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9795 target_buffer.anchor_after(target_start)
9796 ..target_buffer.anchor_before(target_end)
9797 })?;
9798 Location {
9799 buffer: target_buffer_handle,
9800 range,
9801 }
9802 }),
9803 None => None,
9804 };
9805 Ok(location)
9806 })
9807 }
9808
9809 pub fn find_all_references(
9810 &mut self,
9811 _: &FindAllReferences,
9812 cx: &mut ViewContext<Self>,
9813 ) -> Option<Task<Result<Navigated>>> {
9814 let selection = self.selections.newest::<usize>(cx);
9815 let multi_buffer = self.buffer.read(cx);
9816 let head = selection.head();
9817
9818 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9819 let head_anchor = multi_buffer_snapshot.anchor_at(
9820 head,
9821 if head < selection.tail() {
9822 Bias::Right
9823 } else {
9824 Bias::Left
9825 },
9826 );
9827
9828 match self
9829 .find_all_references_task_sources
9830 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9831 {
9832 Ok(_) => {
9833 log::info!(
9834 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9835 );
9836 return None;
9837 }
9838 Err(i) => {
9839 self.find_all_references_task_sources.insert(i, head_anchor);
9840 }
9841 }
9842
9843 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9844 let workspace = self.workspace()?;
9845 let project = workspace.read(cx).project().clone();
9846 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9847 Some(cx.spawn(|editor, mut cx| async move {
9848 let _cleanup = defer({
9849 let mut cx = cx.clone();
9850 move || {
9851 let _ = editor.update(&mut cx, |editor, _| {
9852 if let Ok(i) =
9853 editor
9854 .find_all_references_task_sources
9855 .binary_search_by(|anchor| {
9856 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9857 })
9858 {
9859 editor.find_all_references_task_sources.remove(i);
9860 }
9861 });
9862 }
9863 });
9864
9865 let locations = references.await?;
9866 if locations.is_empty() {
9867 return anyhow::Ok(Navigated::No);
9868 }
9869
9870 workspace.update(&mut cx, |workspace, cx| {
9871 let title = locations
9872 .first()
9873 .as_ref()
9874 .map(|location| {
9875 let buffer = location.buffer.read(cx);
9876 format!(
9877 "References to `{}`",
9878 buffer
9879 .text_for_range(location.range.clone())
9880 .collect::<String>()
9881 )
9882 })
9883 .unwrap();
9884 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9885 Navigated::Yes
9886 })
9887 }))
9888 }
9889
9890 /// Opens a multibuffer with the given project locations in it
9891 pub fn open_locations_in_multibuffer(
9892 workspace: &mut Workspace,
9893 mut locations: Vec<Location>,
9894 title: String,
9895 split: bool,
9896 cx: &mut ViewContext<Workspace>,
9897 ) {
9898 // If there are multiple definitions, open them in a multibuffer
9899 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9900 let mut locations = locations.into_iter().peekable();
9901 let mut ranges_to_highlight = Vec::new();
9902 let capability = workspace.project().read(cx).capability();
9903
9904 let excerpt_buffer = cx.new_model(|cx| {
9905 let mut multibuffer = MultiBuffer::new(capability);
9906 while let Some(location) = locations.next() {
9907 let buffer = location.buffer.read(cx);
9908 let mut ranges_for_buffer = Vec::new();
9909 let range = location.range.to_offset(buffer);
9910 ranges_for_buffer.push(range.clone());
9911
9912 while let Some(next_location) = locations.peek() {
9913 if next_location.buffer == location.buffer {
9914 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9915 locations.next();
9916 } else {
9917 break;
9918 }
9919 }
9920
9921 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9922 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9923 location.buffer.clone(),
9924 ranges_for_buffer,
9925 DEFAULT_MULTIBUFFER_CONTEXT,
9926 cx,
9927 ))
9928 }
9929
9930 multibuffer.with_title(title)
9931 });
9932
9933 let editor = cx.new_view(|cx| {
9934 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9935 });
9936 editor.update(cx, |editor, cx| {
9937 if let Some(first_range) = ranges_to_highlight.first() {
9938 editor.change_selections(None, cx, |selections| {
9939 selections.clear_disjoint();
9940 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9941 });
9942 }
9943 editor.highlight_background::<Self>(
9944 &ranges_to_highlight,
9945 |theme| theme.editor_highlighted_line_background,
9946 cx,
9947 );
9948 editor.register_buffers_with_language_servers(cx);
9949 });
9950
9951 let item = Box::new(editor);
9952 let item_id = item.item_id();
9953
9954 if split {
9955 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9956 } else {
9957 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9958 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9959 pane.close_current_preview_item(cx)
9960 } else {
9961 None
9962 }
9963 });
9964 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9965 }
9966 workspace.active_pane().update(cx, |pane, cx| {
9967 pane.set_preview_item_id(Some(item_id), cx);
9968 });
9969 }
9970
9971 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9972 use language::ToOffset as _;
9973
9974 let provider = self.semantics_provider.clone()?;
9975 let selection = self.selections.newest_anchor().clone();
9976 let (cursor_buffer, cursor_buffer_position) = self
9977 .buffer
9978 .read(cx)
9979 .text_anchor_for_position(selection.head(), cx)?;
9980 let (tail_buffer, cursor_buffer_position_end) = self
9981 .buffer
9982 .read(cx)
9983 .text_anchor_for_position(selection.tail(), cx)?;
9984 if tail_buffer != cursor_buffer {
9985 return None;
9986 }
9987
9988 let snapshot = cursor_buffer.read(cx).snapshot();
9989 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9990 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9991 let prepare_rename = provider
9992 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
9993 .unwrap_or_else(|| Task::ready(Ok(None)));
9994 drop(snapshot);
9995
9996 Some(cx.spawn(|this, mut cx| async move {
9997 let rename_range = if let Some(range) = prepare_rename.await? {
9998 Some(range)
9999 } else {
10000 this.update(&mut cx, |this, cx| {
10001 let buffer = this.buffer.read(cx).snapshot(cx);
10002 let mut buffer_highlights = this
10003 .document_highlights_for_position(selection.head(), &buffer)
10004 .filter(|highlight| {
10005 highlight.start.excerpt_id == selection.head().excerpt_id
10006 && highlight.end.excerpt_id == selection.head().excerpt_id
10007 });
10008 buffer_highlights
10009 .next()
10010 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10011 })?
10012 };
10013 if let Some(rename_range) = rename_range {
10014 this.update(&mut cx, |this, cx| {
10015 let snapshot = cursor_buffer.read(cx).snapshot();
10016 let rename_buffer_range = rename_range.to_offset(&snapshot);
10017 let cursor_offset_in_rename_range =
10018 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10019 let cursor_offset_in_rename_range_end =
10020 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10021
10022 this.take_rename(false, cx);
10023 let buffer = this.buffer.read(cx).read(cx);
10024 let cursor_offset = selection.head().to_offset(&buffer);
10025 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10026 let rename_end = rename_start + rename_buffer_range.len();
10027 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10028 let mut old_highlight_id = None;
10029 let old_name: Arc<str> = buffer
10030 .chunks(rename_start..rename_end, true)
10031 .map(|chunk| {
10032 if old_highlight_id.is_none() {
10033 old_highlight_id = chunk.syntax_highlight_id;
10034 }
10035 chunk.text
10036 })
10037 .collect::<String>()
10038 .into();
10039
10040 drop(buffer);
10041
10042 // Position the selection in the rename editor so that it matches the current selection.
10043 this.show_local_selections = false;
10044 let rename_editor = cx.new_view(|cx| {
10045 let mut editor = Editor::single_line(cx);
10046 editor.buffer.update(cx, |buffer, cx| {
10047 buffer.edit([(0..0, old_name.clone())], None, cx)
10048 });
10049 let rename_selection_range = match cursor_offset_in_rename_range
10050 .cmp(&cursor_offset_in_rename_range_end)
10051 {
10052 Ordering::Equal => {
10053 editor.select_all(&SelectAll, cx);
10054 return editor;
10055 }
10056 Ordering::Less => {
10057 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10058 }
10059 Ordering::Greater => {
10060 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10061 }
10062 };
10063 if rename_selection_range.end > old_name.len() {
10064 editor.select_all(&SelectAll, cx);
10065 } else {
10066 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10067 s.select_ranges([rename_selection_range]);
10068 });
10069 }
10070 editor
10071 });
10072 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10073 if e == &EditorEvent::Focused {
10074 cx.emit(EditorEvent::FocusedIn)
10075 }
10076 })
10077 .detach();
10078
10079 let write_highlights =
10080 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10081 let read_highlights =
10082 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10083 let ranges = write_highlights
10084 .iter()
10085 .flat_map(|(_, ranges)| ranges.iter())
10086 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10087 .cloned()
10088 .collect();
10089
10090 this.highlight_text::<Rename>(
10091 ranges,
10092 HighlightStyle {
10093 fade_out: Some(0.6),
10094 ..Default::default()
10095 },
10096 cx,
10097 );
10098 let rename_focus_handle = rename_editor.focus_handle(cx);
10099 cx.focus(&rename_focus_handle);
10100 let block_id = this.insert_blocks(
10101 [BlockProperties {
10102 style: BlockStyle::Flex,
10103 placement: BlockPlacement::Below(range.start),
10104 height: 1,
10105 render: Arc::new({
10106 let rename_editor = rename_editor.clone();
10107 move |cx: &mut BlockContext| {
10108 let mut text_style = cx.editor_style.text.clone();
10109 if let Some(highlight_style) = old_highlight_id
10110 .and_then(|h| h.style(&cx.editor_style.syntax))
10111 {
10112 text_style = text_style.highlight(highlight_style);
10113 }
10114 div()
10115 .block_mouse_down()
10116 .pl(cx.anchor_x)
10117 .child(EditorElement::new(
10118 &rename_editor,
10119 EditorStyle {
10120 background: cx.theme().system().transparent,
10121 local_player: cx.editor_style.local_player,
10122 text: text_style,
10123 scrollbar_width: cx.editor_style.scrollbar_width,
10124 syntax: cx.editor_style.syntax.clone(),
10125 status: cx.editor_style.status.clone(),
10126 inlay_hints_style: HighlightStyle {
10127 font_weight: Some(FontWeight::BOLD),
10128 ..make_inlay_hints_style(cx)
10129 },
10130 inline_completion_styles: make_suggestion_styles(
10131 cx,
10132 ),
10133 ..EditorStyle::default()
10134 },
10135 ))
10136 .into_any_element()
10137 }
10138 }),
10139 priority: 0,
10140 }],
10141 Some(Autoscroll::fit()),
10142 cx,
10143 )[0];
10144 this.pending_rename = Some(RenameState {
10145 range,
10146 old_name,
10147 editor: rename_editor,
10148 block_id,
10149 });
10150 })?;
10151 }
10152
10153 Ok(())
10154 }))
10155 }
10156
10157 pub fn confirm_rename(
10158 &mut self,
10159 _: &ConfirmRename,
10160 cx: &mut ViewContext<Self>,
10161 ) -> Option<Task<Result<()>>> {
10162 let rename = self.take_rename(false, cx)?;
10163 let workspace = self.workspace()?.downgrade();
10164 let (buffer, start) = self
10165 .buffer
10166 .read(cx)
10167 .text_anchor_for_position(rename.range.start, cx)?;
10168 let (end_buffer, _) = self
10169 .buffer
10170 .read(cx)
10171 .text_anchor_for_position(rename.range.end, cx)?;
10172 if buffer != end_buffer {
10173 return None;
10174 }
10175
10176 let old_name = rename.old_name;
10177 let new_name = rename.editor.read(cx).text(cx);
10178
10179 let rename = self.semantics_provider.as_ref()?.perform_rename(
10180 &buffer,
10181 start,
10182 new_name.clone(),
10183 cx,
10184 )?;
10185
10186 Some(cx.spawn(|editor, mut cx| async move {
10187 let project_transaction = rename.await?;
10188 Self::open_project_transaction(
10189 &editor,
10190 workspace,
10191 project_transaction,
10192 format!("Rename: {} → {}", old_name, new_name),
10193 cx.clone(),
10194 )
10195 .await?;
10196
10197 editor.update(&mut cx, |editor, cx| {
10198 editor.refresh_document_highlights(cx);
10199 })?;
10200 Ok(())
10201 }))
10202 }
10203
10204 fn take_rename(
10205 &mut self,
10206 moving_cursor: bool,
10207 cx: &mut ViewContext<Self>,
10208 ) -> Option<RenameState> {
10209 let rename = self.pending_rename.take()?;
10210 if rename.editor.focus_handle(cx).is_focused(cx) {
10211 cx.focus(&self.focus_handle);
10212 }
10213
10214 self.remove_blocks(
10215 [rename.block_id].into_iter().collect(),
10216 Some(Autoscroll::fit()),
10217 cx,
10218 );
10219 self.clear_highlights::<Rename>(cx);
10220 self.show_local_selections = true;
10221
10222 if moving_cursor {
10223 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10224 editor.selections.newest::<usize>(cx).head()
10225 });
10226
10227 // Update the selection to match the position of the selection inside
10228 // the rename editor.
10229 let snapshot = self.buffer.read(cx).read(cx);
10230 let rename_range = rename.range.to_offset(&snapshot);
10231 let cursor_in_editor = snapshot
10232 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10233 .min(rename_range.end);
10234 drop(snapshot);
10235
10236 self.change_selections(None, cx, |s| {
10237 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10238 });
10239 } else {
10240 self.refresh_document_highlights(cx);
10241 }
10242
10243 Some(rename)
10244 }
10245
10246 pub fn pending_rename(&self) -> Option<&RenameState> {
10247 self.pending_rename.as_ref()
10248 }
10249
10250 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10251 let project = match &self.project {
10252 Some(project) => project.clone(),
10253 None => return None,
10254 };
10255
10256 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffers, cx))
10257 }
10258
10259 fn format_selections(
10260 &mut self,
10261 _: &FormatSelections,
10262 cx: &mut ViewContext<Self>,
10263 ) -> Option<Task<Result<()>>> {
10264 let project = match &self.project {
10265 Some(project) => project.clone(),
10266 None => return None,
10267 };
10268
10269 let ranges = self
10270 .selections
10271 .all_adjusted(cx)
10272 .into_iter()
10273 .map(|selection| selection.range())
10274 .collect_vec();
10275
10276 Some(self.perform_format(
10277 project,
10278 FormatTrigger::Manual,
10279 FormatTarget::Ranges(ranges),
10280 cx,
10281 ))
10282 }
10283
10284 fn perform_format(
10285 &mut self,
10286 project: Model<Project>,
10287 trigger: FormatTrigger,
10288 target: FormatTarget,
10289 cx: &mut ViewContext<Self>,
10290 ) -> Task<Result<()>> {
10291 let buffer = self.buffer.clone();
10292 let (buffers, target) = match target {
10293 FormatTarget::Buffers => {
10294 let mut buffers = buffer.read(cx).all_buffers();
10295 if trigger == FormatTrigger::Save {
10296 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10297 }
10298 (buffers, LspFormatTarget::Buffers)
10299 }
10300 FormatTarget::Ranges(selection_ranges) => {
10301 let multi_buffer = buffer.read(cx);
10302 let snapshot = multi_buffer.read(cx);
10303 let mut buffers = HashSet::default();
10304 let mut buffer_id_to_ranges: BTreeMap<BufferId, Vec<Range<text::Anchor>>> =
10305 BTreeMap::new();
10306 for selection_range in selection_ranges {
10307 for (excerpt, buffer_range) in snapshot.range_to_buffer_ranges(selection_range)
10308 {
10309 let buffer_id = excerpt.buffer_id();
10310 let start = excerpt.buffer().anchor_before(buffer_range.start);
10311 let end = excerpt.buffer().anchor_after(buffer_range.end);
10312 buffers.insert(multi_buffer.buffer(buffer_id).unwrap());
10313 buffer_id_to_ranges
10314 .entry(buffer_id)
10315 .and_modify(|buffer_ranges| buffer_ranges.push(start..end))
10316 .or_insert_with(|| vec![start..end]);
10317 }
10318 }
10319 (buffers, LspFormatTarget::Ranges(buffer_id_to_ranges))
10320 }
10321 };
10322
10323 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10324 let format = project.update(cx, |project, cx| {
10325 project.format(buffers, target, true, trigger, cx)
10326 });
10327
10328 cx.spawn(|_, mut cx| async move {
10329 let transaction = futures::select_biased! {
10330 () = timeout => {
10331 log::warn!("timed out waiting for formatting");
10332 None
10333 }
10334 transaction = format.log_err().fuse() => transaction,
10335 };
10336
10337 buffer
10338 .update(&mut cx, |buffer, cx| {
10339 if let Some(transaction) = transaction {
10340 if !buffer.is_singleton() {
10341 buffer.push_transaction(&transaction.0, cx);
10342 }
10343 }
10344
10345 cx.notify();
10346 })
10347 .ok();
10348
10349 Ok(())
10350 })
10351 }
10352
10353 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10354 if let Some(project) = self.project.clone() {
10355 self.buffer.update(cx, |multi_buffer, cx| {
10356 project.update(cx, |project, cx| {
10357 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10358 });
10359 })
10360 }
10361 }
10362
10363 fn cancel_language_server_work(
10364 &mut self,
10365 _: &actions::CancelLanguageServerWork,
10366 cx: &mut ViewContext<Self>,
10367 ) {
10368 if let Some(project) = self.project.clone() {
10369 self.buffer.update(cx, |multi_buffer, cx| {
10370 project.update(cx, |project, cx| {
10371 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10372 });
10373 })
10374 }
10375 }
10376
10377 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10378 cx.show_character_palette();
10379 }
10380
10381 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10382 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10383 let buffer = self.buffer.read(cx).snapshot(cx);
10384 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10385 let is_valid = buffer
10386 .diagnostics_in_range(active_diagnostics.primary_range.clone(), false)
10387 .any(|entry| {
10388 let range = entry.range.to_offset(&buffer);
10389 entry.diagnostic.is_primary
10390 && !range.is_empty()
10391 && range.start == primary_range_start
10392 && entry.diagnostic.message == active_diagnostics.primary_message
10393 });
10394
10395 if is_valid != active_diagnostics.is_valid {
10396 active_diagnostics.is_valid = is_valid;
10397 let mut new_styles = HashMap::default();
10398 for (block_id, diagnostic) in &active_diagnostics.blocks {
10399 new_styles.insert(
10400 *block_id,
10401 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10402 );
10403 }
10404 self.display_map.update(cx, |display_map, _cx| {
10405 display_map.replace_blocks(new_styles)
10406 });
10407 }
10408 }
10409 }
10410
10411 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) {
10412 self.dismiss_diagnostics(cx);
10413 let snapshot = self.snapshot(cx);
10414 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10415 let buffer = self.buffer.read(cx).snapshot(cx);
10416
10417 let mut primary_range = None;
10418 let mut primary_message = None;
10419 let mut group_end = Point::zero();
10420 let diagnostic_group = buffer
10421 .diagnostic_group(group_id)
10422 .filter_map(|entry| {
10423 let start = entry.range.start.to_point(&buffer);
10424 let end = entry.range.end.to_point(&buffer);
10425 if snapshot.is_line_folded(MultiBufferRow(start.row))
10426 && (start.row == end.row
10427 || snapshot.is_line_folded(MultiBufferRow(end.row)))
10428 {
10429 return None;
10430 }
10431 if end > group_end {
10432 group_end = end;
10433 }
10434 if entry.diagnostic.is_primary {
10435 primary_range = Some(entry.range.clone());
10436 primary_message = Some(entry.diagnostic.message.clone());
10437 }
10438 Some(entry)
10439 })
10440 .collect::<Vec<_>>();
10441 let primary_range = primary_range?;
10442 let primary_message = primary_message?;
10443
10444 let blocks = display_map
10445 .insert_blocks(
10446 diagnostic_group.iter().map(|entry| {
10447 let diagnostic = entry.diagnostic.clone();
10448 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10449 BlockProperties {
10450 style: BlockStyle::Fixed,
10451 placement: BlockPlacement::Below(
10452 buffer.anchor_after(entry.range.start),
10453 ),
10454 height: message_height,
10455 render: diagnostic_block_renderer(diagnostic, None, true, true),
10456 priority: 0,
10457 }
10458 }),
10459 cx,
10460 )
10461 .into_iter()
10462 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10463 .collect();
10464
10465 Some(ActiveDiagnosticGroup {
10466 primary_range,
10467 primary_message,
10468 group_id,
10469 blocks,
10470 is_valid: true,
10471 })
10472 });
10473 }
10474
10475 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10476 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10477 self.display_map.update(cx, |display_map, cx| {
10478 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10479 });
10480 cx.notify();
10481 }
10482 }
10483
10484 pub fn set_selections_from_remote(
10485 &mut self,
10486 selections: Vec<Selection<Anchor>>,
10487 pending_selection: Option<Selection<Anchor>>,
10488 cx: &mut ViewContext<Self>,
10489 ) {
10490 let old_cursor_position = self.selections.newest_anchor().head();
10491 self.selections.change_with(cx, |s| {
10492 s.select_anchors(selections);
10493 if let Some(pending_selection) = pending_selection {
10494 s.set_pending(pending_selection, SelectMode::Character);
10495 } else {
10496 s.clear_pending();
10497 }
10498 });
10499 self.selections_did_change(false, &old_cursor_position, true, cx);
10500 }
10501
10502 fn push_to_selection_history(&mut self) {
10503 self.selection_history.push(SelectionHistoryEntry {
10504 selections: self.selections.disjoint_anchors(),
10505 select_next_state: self.select_next_state.clone(),
10506 select_prev_state: self.select_prev_state.clone(),
10507 add_selections_state: self.add_selections_state.clone(),
10508 });
10509 }
10510
10511 pub fn transact(
10512 &mut self,
10513 cx: &mut ViewContext<Self>,
10514 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10515 ) -> Option<TransactionId> {
10516 self.start_transaction_at(Instant::now(), cx);
10517 update(self, cx);
10518 self.end_transaction_at(Instant::now(), cx)
10519 }
10520
10521 pub fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10522 self.end_selection(cx);
10523 if let Some(tx_id) = self
10524 .buffer
10525 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10526 {
10527 self.selection_history
10528 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10529 cx.emit(EditorEvent::TransactionBegun {
10530 transaction_id: tx_id,
10531 })
10532 }
10533 }
10534
10535 pub fn end_transaction_at(
10536 &mut self,
10537 now: Instant,
10538 cx: &mut ViewContext<Self>,
10539 ) -> Option<TransactionId> {
10540 if let Some(transaction_id) = self
10541 .buffer
10542 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10543 {
10544 if let Some((_, end_selections)) =
10545 self.selection_history.transaction_mut(transaction_id)
10546 {
10547 *end_selections = Some(self.selections.disjoint_anchors());
10548 } else {
10549 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10550 }
10551
10552 cx.emit(EditorEvent::Edited { transaction_id });
10553 Some(transaction_id)
10554 } else {
10555 None
10556 }
10557 }
10558
10559 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10560 if self.is_singleton(cx) {
10561 let selection = self.selections.newest::<Point>(cx);
10562
10563 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10564 let range = if selection.is_empty() {
10565 let point = selection.head().to_display_point(&display_map);
10566 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10567 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10568 .to_point(&display_map);
10569 start..end
10570 } else {
10571 selection.range()
10572 };
10573 if display_map.folds_in_range(range).next().is_some() {
10574 self.unfold_lines(&Default::default(), cx)
10575 } else {
10576 self.fold(&Default::default(), cx)
10577 }
10578 } else {
10579 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10580 let mut toggled_buffers = HashSet::default();
10581 for (_, buffer_snapshot, _) in
10582 multi_buffer_snapshot.excerpts_in_ranges(self.selections.disjoint_anchor_ranges())
10583 {
10584 let buffer_id = buffer_snapshot.remote_id();
10585 if toggled_buffers.insert(buffer_id) {
10586 if self.buffer_folded(buffer_id, cx) {
10587 self.unfold_buffer(buffer_id, cx);
10588 } else {
10589 self.fold_buffer(buffer_id, cx);
10590 }
10591 }
10592 }
10593 }
10594 }
10595
10596 pub fn toggle_fold_recursive(
10597 &mut self,
10598 _: &actions::ToggleFoldRecursive,
10599 cx: &mut ViewContext<Self>,
10600 ) {
10601 let selection = self.selections.newest::<Point>(cx);
10602
10603 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10604 let range = if selection.is_empty() {
10605 let point = selection.head().to_display_point(&display_map);
10606 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10607 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10608 .to_point(&display_map);
10609 start..end
10610 } else {
10611 selection.range()
10612 };
10613 if display_map.folds_in_range(range).next().is_some() {
10614 self.unfold_recursive(&Default::default(), cx)
10615 } else {
10616 self.fold_recursive(&Default::default(), cx)
10617 }
10618 }
10619
10620 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10621 if self.is_singleton(cx) {
10622 let mut to_fold = Vec::new();
10623 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10624 let selections = self.selections.all_adjusted(cx);
10625
10626 for selection in selections {
10627 let range = selection.range().sorted();
10628 let buffer_start_row = range.start.row;
10629
10630 if range.start.row != range.end.row {
10631 let mut found = false;
10632 let mut row = range.start.row;
10633 while row <= range.end.row {
10634 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row))
10635 {
10636 found = true;
10637 row = crease.range().end.row + 1;
10638 to_fold.push(crease);
10639 } else {
10640 row += 1
10641 }
10642 }
10643 if found {
10644 continue;
10645 }
10646 }
10647
10648 for row in (0..=range.start.row).rev() {
10649 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10650 if crease.range().end.row >= buffer_start_row {
10651 to_fold.push(crease);
10652 if row <= range.start.row {
10653 break;
10654 }
10655 }
10656 }
10657 }
10658 }
10659
10660 self.fold_creases(to_fold, true, cx);
10661 } else {
10662 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10663 let mut folded_buffers = HashSet::default();
10664 for (_, buffer_snapshot, _) in
10665 multi_buffer_snapshot.excerpts_in_ranges(self.selections.disjoint_anchor_ranges())
10666 {
10667 let buffer_id = buffer_snapshot.remote_id();
10668 if folded_buffers.insert(buffer_id) {
10669 self.fold_buffer(buffer_id, cx);
10670 }
10671 }
10672 }
10673 }
10674
10675 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10676 if !self.buffer.read(cx).is_singleton() {
10677 return;
10678 }
10679
10680 let fold_at_level = fold_at.level;
10681 let snapshot = self.buffer.read(cx).snapshot(cx);
10682 let mut to_fold = Vec::new();
10683 let mut stack = vec![(0, snapshot.max_row().0, 1)];
10684
10685 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10686 while start_row < end_row {
10687 match self
10688 .snapshot(cx)
10689 .crease_for_buffer_row(MultiBufferRow(start_row))
10690 {
10691 Some(crease) => {
10692 let nested_start_row = crease.range().start.row + 1;
10693 let nested_end_row = crease.range().end.row;
10694
10695 if current_level < fold_at_level {
10696 stack.push((nested_start_row, nested_end_row, current_level + 1));
10697 } else if current_level == fold_at_level {
10698 to_fold.push(crease);
10699 }
10700
10701 start_row = nested_end_row + 1;
10702 }
10703 None => start_row += 1,
10704 }
10705 }
10706 }
10707
10708 self.fold_creases(to_fold, true, cx);
10709 }
10710
10711 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10712 if self.buffer.read(cx).is_singleton() {
10713 let mut fold_ranges = Vec::new();
10714 let snapshot = self.buffer.read(cx).snapshot(cx);
10715
10716 for row in 0..snapshot.max_row().0 {
10717 if let Some(foldable_range) =
10718 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
10719 {
10720 fold_ranges.push(foldable_range);
10721 }
10722 }
10723
10724 self.fold_creases(fold_ranges, true, cx);
10725 } else {
10726 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10727 editor
10728 .update(&mut cx, |editor, cx| {
10729 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10730 editor.fold_buffer(buffer_id, cx);
10731 }
10732 })
10733 .ok();
10734 });
10735 }
10736 }
10737
10738 pub fn fold_function_bodies(
10739 &mut self,
10740 _: &actions::FoldFunctionBodies,
10741 cx: &mut ViewContext<Self>,
10742 ) {
10743 let snapshot = self.buffer.read(cx).snapshot(cx);
10744 let Some((_, _, buffer)) = snapshot.as_singleton() else {
10745 return;
10746 };
10747 let creases = buffer
10748 .function_body_fold_ranges(0..buffer.len())
10749 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
10750 .collect();
10751
10752 self.fold_creases(creases, true, cx);
10753 }
10754
10755 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10756 let mut to_fold = Vec::new();
10757 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10758 let selections = self.selections.all_adjusted(cx);
10759
10760 for selection in selections {
10761 let range = selection.range().sorted();
10762 let buffer_start_row = range.start.row;
10763
10764 if range.start.row != range.end.row {
10765 let mut found = false;
10766 for row in range.start.row..=range.end.row {
10767 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10768 found = true;
10769 to_fold.push(crease);
10770 }
10771 }
10772 if found {
10773 continue;
10774 }
10775 }
10776
10777 for row in (0..=range.start.row).rev() {
10778 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10779 if crease.range().end.row >= buffer_start_row {
10780 to_fold.push(crease);
10781 } else {
10782 break;
10783 }
10784 }
10785 }
10786 }
10787
10788 self.fold_creases(to_fold, true, cx);
10789 }
10790
10791 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10792 let buffer_row = fold_at.buffer_row;
10793 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10794
10795 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
10796 let autoscroll = self
10797 .selections
10798 .all::<Point>(cx)
10799 .iter()
10800 .any(|selection| crease.range().overlaps(&selection.range()));
10801
10802 self.fold_creases(vec![crease], autoscroll, cx);
10803 }
10804 }
10805
10806 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10807 if self.is_singleton(cx) {
10808 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10809 let buffer = &display_map.buffer_snapshot;
10810 let selections = self.selections.all::<Point>(cx);
10811 let ranges = selections
10812 .iter()
10813 .map(|s| {
10814 let range = s.display_range(&display_map).sorted();
10815 let mut start = range.start.to_point(&display_map);
10816 let mut end = range.end.to_point(&display_map);
10817 start.column = 0;
10818 end.column = buffer.line_len(MultiBufferRow(end.row));
10819 start..end
10820 })
10821 .collect::<Vec<_>>();
10822
10823 self.unfold_ranges(&ranges, true, true, cx);
10824 } else {
10825 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10826 let mut unfolded_buffers = HashSet::default();
10827 for (_, buffer_snapshot, _) in
10828 multi_buffer_snapshot.excerpts_in_ranges(self.selections.disjoint_anchor_ranges())
10829 {
10830 let buffer_id = buffer_snapshot.remote_id();
10831 if unfolded_buffers.insert(buffer_id) {
10832 self.unfold_buffer(buffer_id, cx);
10833 }
10834 }
10835 }
10836 }
10837
10838 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10839 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10840 let selections = self.selections.all::<Point>(cx);
10841 let ranges = selections
10842 .iter()
10843 .map(|s| {
10844 let mut range = s.display_range(&display_map).sorted();
10845 *range.start.column_mut() = 0;
10846 *range.end.column_mut() = display_map.line_len(range.end.row());
10847 let start = range.start.to_point(&display_map);
10848 let end = range.end.to_point(&display_map);
10849 start..end
10850 })
10851 .collect::<Vec<_>>();
10852
10853 self.unfold_ranges(&ranges, true, true, cx);
10854 }
10855
10856 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10857 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10858
10859 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10860 ..Point::new(
10861 unfold_at.buffer_row.0,
10862 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10863 );
10864
10865 let autoscroll = self
10866 .selections
10867 .all::<Point>(cx)
10868 .iter()
10869 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10870
10871 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
10872 }
10873
10874 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10875 if self.buffer.read(cx).is_singleton() {
10876 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10877 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
10878 } else {
10879 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10880 editor
10881 .update(&mut cx, |editor, cx| {
10882 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10883 editor.unfold_buffer(buffer_id, cx);
10884 }
10885 })
10886 .ok();
10887 });
10888 }
10889 }
10890
10891 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10892 let selections = self.selections.all::<Point>(cx);
10893 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10894 let line_mode = self.selections.line_mode;
10895 let ranges = selections
10896 .into_iter()
10897 .map(|s| {
10898 if line_mode {
10899 let start = Point::new(s.start.row, 0);
10900 let end = Point::new(
10901 s.end.row,
10902 display_map
10903 .buffer_snapshot
10904 .line_len(MultiBufferRow(s.end.row)),
10905 );
10906 Crease::simple(start..end, display_map.fold_placeholder.clone())
10907 } else {
10908 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
10909 }
10910 })
10911 .collect::<Vec<_>>();
10912 self.fold_creases(ranges, true, cx);
10913 }
10914
10915 pub fn fold_ranges<T: ToOffset + Clone>(
10916 &mut self,
10917 ranges: Vec<Range<T>>,
10918 auto_scroll: bool,
10919 cx: &mut ViewContext<Self>,
10920 ) {
10921 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10922 let ranges = ranges
10923 .into_iter()
10924 .map(|r| Crease::simple(r, display_map.fold_placeholder.clone()))
10925 .collect::<Vec<_>>();
10926 self.fold_creases(ranges, auto_scroll, cx);
10927 }
10928
10929 pub fn fold_creases<T: ToOffset + Clone>(
10930 &mut self,
10931 creases: Vec<Crease<T>>,
10932 auto_scroll: bool,
10933 cx: &mut ViewContext<Self>,
10934 ) {
10935 if creases.is_empty() {
10936 return;
10937 }
10938
10939 let mut buffers_affected = HashSet::default();
10940 let multi_buffer = self.buffer().read(cx);
10941 for crease in &creases {
10942 if let Some((_, buffer, _)) =
10943 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
10944 {
10945 buffers_affected.insert(buffer.read(cx).remote_id());
10946 };
10947 }
10948
10949 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
10950
10951 if auto_scroll {
10952 self.request_autoscroll(Autoscroll::fit(), cx);
10953 }
10954
10955 for buffer_id in buffers_affected {
10956 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10957 }
10958
10959 cx.notify();
10960
10961 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10962 // Clear diagnostics block when folding a range that contains it.
10963 let snapshot = self.snapshot(cx);
10964 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10965 drop(snapshot);
10966 self.active_diagnostics = Some(active_diagnostics);
10967 self.dismiss_diagnostics(cx);
10968 } else {
10969 self.active_diagnostics = Some(active_diagnostics);
10970 }
10971 }
10972
10973 self.scrollbar_marker_state.dirty = true;
10974 }
10975
10976 /// Removes any folds whose ranges intersect any of the given ranges.
10977 pub fn unfold_ranges<T: ToOffset + Clone>(
10978 &mut self,
10979 ranges: &[Range<T>],
10980 inclusive: bool,
10981 auto_scroll: bool,
10982 cx: &mut ViewContext<Self>,
10983 ) {
10984 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10985 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
10986 });
10987 }
10988
10989 pub fn fold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10990 if self.buffer().read(cx).is_singleton() || self.buffer_folded(buffer_id, cx) {
10991 return;
10992 }
10993 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10994 return;
10995 };
10996 let folded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10997 self.display_map
10998 .update(cx, |display_map, cx| display_map.fold_buffer(buffer_id, cx));
10999 cx.emit(EditorEvent::BufferFoldToggled {
11000 ids: folded_excerpts.iter().map(|&(id, _)| id).collect(),
11001 folded: true,
11002 });
11003 cx.notify();
11004 }
11005
11006 pub fn unfold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
11007 if self.buffer().read(cx).is_singleton() || !self.buffer_folded(buffer_id, cx) {
11008 return;
11009 }
11010 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
11011 return;
11012 };
11013 let unfolded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
11014 self.display_map.update(cx, |display_map, cx| {
11015 display_map.unfold_buffer(buffer_id, cx);
11016 });
11017 cx.emit(EditorEvent::BufferFoldToggled {
11018 ids: unfolded_excerpts.iter().map(|&(id, _)| id).collect(),
11019 folded: false,
11020 });
11021 cx.notify();
11022 }
11023
11024 pub fn buffer_folded(&self, buffer: BufferId, cx: &AppContext) -> bool {
11025 self.display_map.read(cx).buffer_folded(buffer)
11026 }
11027
11028 /// Removes any folds with the given ranges.
11029 pub fn remove_folds_with_type<T: ToOffset + Clone>(
11030 &mut self,
11031 ranges: &[Range<T>],
11032 type_id: TypeId,
11033 auto_scroll: bool,
11034 cx: &mut ViewContext<Self>,
11035 ) {
11036 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11037 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
11038 });
11039 }
11040
11041 fn remove_folds_with<T: ToOffset + Clone>(
11042 &mut self,
11043 ranges: &[Range<T>],
11044 auto_scroll: bool,
11045 cx: &mut ViewContext<Self>,
11046 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
11047 ) {
11048 if ranges.is_empty() {
11049 return;
11050 }
11051
11052 let mut buffers_affected = HashSet::default();
11053 let multi_buffer = self.buffer().read(cx);
11054 for range in ranges {
11055 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11056 buffers_affected.insert(buffer.read(cx).remote_id());
11057 };
11058 }
11059
11060 self.display_map.update(cx, update);
11061
11062 if auto_scroll {
11063 self.request_autoscroll(Autoscroll::fit(), cx);
11064 }
11065
11066 for buffer_id in buffers_affected {
11067 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
11068 }
11069
11070 cx.notify();
11071 self.scrollbar_marker_state.dirty = true;
11072 self.active_indent_guides_state.dirty = true;
11073 }
11074
11075 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11076 self.display_map.read(cx).fold_placeholder.clone()
11077 }
11078
11079 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11080 if hovered != self.gutter_hovered {
11081 self.gutter_hovered = hovered;
11082 cx.notify();
11083 }
11084 }
11085
11086 pub fn insert_blocks(
11087 &mut self,
11088 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11089 autoscroll: Option<Autoscroll>,
11090 cx: &mut ViewContext<Self>,
11091 ) -> Vec<CustomBlockId> {
11092 let blocks = self
11093 .display_map
11094 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11095 if let Some(autoscroll) = autoscroll {
11096 self.request_autoscroll(autoscroll, cx);
11097 }
11098 cx.notify();
11099 blocks
11100 }
11101
11102 pub fn resize_blocks(
11103 &mut self,
11104 heights: HashMap<CustomBlockId, u32>,
11105 autoscroll: Option<Autoscroll>,
11106 cx: &mut ViewContext<Self>,
11107 ) {
11108 self.display_map
11109 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11110 if let Some(autoscroll) = autoscroll {
11111 self.request_autoscroll(autoscroll, cx);
11112 }
11113 cx.notify();
11114 }
11115
11116 pub fn replace_blocks(
11117 &mut self,
11118 renderers: HashMap<CustomBlockId, RenderBlock>,
11119 autoscroll: Option<Autoscroll>,
11120 cx: &mut ViewContext<Self>,
11121 ) {
11122 self.display_map
11123 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11124 if let Some(autoscroll) = autoscroll {
11125 self.request_autoscroll(autoscroll, cx);
11126 }
11127 cx.notify();
11128 }
11129
11130 pub fn remove_blocks(
11131 &mut self,
11132 block_ids: HashSet<CustomBlockId>,
11133 autoscroll: Option<Autoscroll>,
11134 cx: &mut ViewContext<Self>,
11135 ) {
11136 self.display_map.update(cx, |display_map, cx| {
11137 display_map.remove_blocks(block_ids, cx)
11138 });
11139 if let Some(autoscroll) = autoscroll {
11140 self.request_autoscroll(autoscroll, cx);
11141 }
11142 cx.notify();
11143 }
11144
11145 pub fn row_for_block(
11146 &self,
11147 block_id: CustomBlockId,
11148 cx: &mut ViewContext<Self>,
11149 ) -> Option<DisplayRow> {
11150 self.display_map
11151 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11152 }
11153
11154 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11155 self.focused_block = Some(focused_block);
11156 }
11157
11158 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11159 self.focused_block.take()
11160 }
11161
11162 pub fn insert_creases(
11163 &mut self,
11164 creases: impl IntoIterator<Item = Crease<Anchor>>,
11165 cx: &mut ViewContext<Self>,
11166 ) -> Vec<CreaseId> {
11167 self.display_map
11168 .update(cx, |map, cx| map.insert_creases(creases, cx))
11169 }
11170
11171 pub fn remove_creases(
11172 &mut self,
11173 ids: impl IntoIterator<Item = CreaseId>,
11174 cx: &mut ViewContext<Self>,
11175 ) {
11176 self.display_map
11177 .update(cx, |map, cx| map.remove_creases(ids, cx));
11178 }
11179
11180 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11181 self.display_map
11182 .update(cx, |map, cx| map.snapshot(cx))
11183 .longest_row()
11184 }
11185
11186 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11187 self.display_map
11188 .update(cx, |map, cx| map.snapshot(cx))
11189 .max_point()
11190 }
11191
11192 pub fn text(&self, cx: &AppContext) -> String {
11193 self.buffer.read(cx).read(cx).text()
11194 }
11195
11196 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11197 let text = self.text(cx);
11198 let text = text.trim();
11199
11200 if text.is_empty() {
11201 return None;
11202 }
11203
11204 Some(text.to_string())
11205 }
11206
11207 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11208 self.transact(cx, |this, cx| {
11209 this.buffer
11210 .read(cx)
11211 .as_singleton()
11212 .expect("you can only call set_text on editors for singleton buffers")
11213 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11214 });
11215 }
11216
11217 pub fn display_text(&self, cx: &mut AppContext) -> String {
11218 self.display_map
11219 .update(cx, |map, cx| map.snapshot(cx))
11220 .text()
11221 }
11222
11223 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11224 let mut wrap_guides = smallvec::smallvec![];
11225
11226 if self.show_wrap_guides == Some(false) {
11227 return wrap_guides;
11228 }
11229
11230 let settings = self.buffer.read(cx).settings_at(0, cx);
11231 if settings.show_wrap_guides {
11232 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11233 wrap_guides.push((soft_wrap as usize, true));
11234 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11235 wrap_guides.push((soft_wrap as usize, true));
11236 }
11237 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11238 }
11239
11240 wrap_guides
11241 }
11242
11243 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11244 let settings = self.buffer.read(cx).settings_at(0, cx);
11245 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11246 match mode {
11247 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11248 SoftWrap::None
11249 }
11250 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11251 language_settings::SoftWrap::PreferredLineLength => {
11252 SoftWrap::Column(settings.preferred_line_length)
11253 }
11254 language_settings::SoftWrap::Bounded => {
11255 SoftWrap::Bounded(settings.preferred_line_length)
11256 }
11257 }
11258 }
11259
11260 pub fn set_soft_wrap_mode(
11261 &mut self,
11262 mode: language_settings::SoftWrap,
11263 cx: &mut ViewContext<Self>,
11264 ) {
11265 self.soft_wrap_mode_override = Some(mode);
11266 cx.notify();
11267 }
11268
11269 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11270 self.text_style_refinement = Some(style);
11271 }
11272
11273 /// called by the Element so we know what style we were most recently rendered with.
11274 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11275 let rem_size = cx.rem_size();
11276 self.display_map.update(cx, |map, cx| {
11277 map.set_font(
11278 style.text.font(),
11279 style.text.font_size.to_pixels(rem_size),
11280 cx,
11281 )
11282 });
11283 self.style = Some(style);
11284 }
11285
11286 pub fn style(&self) -> Option<&EditorStyle> {
11287 self.style.as_ref()
11288 }
11289
11290 // Called by the element. This method is not designed to be called outside of the editor
11291 // element's layout code because it does not notify when rewrapping is computed synchronously.
11292 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11293 self.display_map
11294 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11295 }
11296
11297 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11298 if self.soft_wrap_mode_override.is_some() {
11299 self.soft_wrap_mode_override.take();
11300 } else {
11301 let soft_wrap = match self.soft_wrap_mode(cx) {
11302 SoftWrap::GitDiff => return,
11303 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11304 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11305 language_settings::SoftWrap::None
11306 }
11307 };
11308 self.soft_wrap_mode_override = Some(soft_wrap);
11309 }
11310 cx.notify();
11311 }
11312
11313 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11314 let Some(workspace) = self.workspace() else {
11315 return;
11316 };
11317 let fs = workspace.read(cx).app_state().fs.clone();
11318 let current_show = TabBarSettings::get_global(cx).show;
11319 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11320 setting.show = Some(!current_show);
11321 });
11322 }
11323
11324 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11325 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11326 self.buffer
11327 .read(cx)
11328 .settings_at(0, cx)
11329 .indent_guides
11330 .enabled
11331 });
11332 self.show_indent_guides = Some(!currently_enabled);
11333 cx.notify();
11334 }
11335
11336 fn should_show_indent_guides(&self) -> Option<bool> {
11337 self.show_indent_guides
11338 }
11339
11340 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11341 let mut editor_settings = EditorSettings::get_global(cx).clone();
11342 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11343 EditorSettings::override_global(editor_settings, cx);
11344 }
11345
11346 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11347 self.use_relative_line_numbers
11348 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11349 }
11350
11351 pub fn toggle_relative_line_numbers(
11352 &mut self,
11353 _: &ToggleRelativeLineNumbers,
11354 cx: &mut ViewContext<Self>,
11355 ) {
11356 let is_relative = self.should_use_relative_line_numbers(cx);
11357 self.set_relative_line_number(Some(!is_relative), cx)
11358 }
11359
11360 pub fn set_relative_line_number(
11361 &mut self,
11362 is_relative: Option<bool>,
11363 cx: &mut ViewContext<Self>,
11364 ) {
11365 self.use_relative_line_numbers = is_relative;
11366 cx.notify();
11367 }
11368
11369 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11370 self.show_gutter = show_gutter;
11371 cx.notify();
11372 }
11373
11374 pub fn set_show_scrollbars(&mut self, show_scrollbars: bool, cx: &mut ViewContext<Self>) {
11375 self.show_scrollbars = show_scrollbars;
11376 cx.notify();
11377 }
11378
11379 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11380 self.show_line_numbers = Some(show_line_numbers);
11381 cx.notify();
11382 }
11383
11384 pub fn set_show_git_diff_gutter(
11385 &mut self,
11386 show_git_diff_gutter: bool,
11387 cx: &mut ViewContext<Self>,
11388 ) {
11389 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11390 cx.notify();
11391 }
11392
11393 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11394 self.show_code_actions = Some(show_code_actions);
11395 cx.notify();
11396 }
11397
11398 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11399 self.show_runnables = Some(show_runnables);
11400 cx.notify();
11401 }
11402
11403 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11404 if self.display_map.read(cx).masked != masked {
11405 self.display_map.update(cx, |map, _| map.masked = masked);
11406 }
11407 cx.notify()
11408 }
11409
11410 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11411 self.show_wrap_guides = Some(show_wrap_guides);
11412 cx.notify();
11413 }
11414
11415 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11416 self.show_indent_guides = Some(show_indent_guides);
11417 cx.notify();
11418 }
11419
11420 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11421 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11422 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11423 if let Some(dir) = file.abs_path(cx).parent() {
11424 return Some(dir.to_owned());
11425 }
11426 }
11427
11428 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11429 return Some(project_path.path.to_path_buf());
11430 }
11431 }
11432
11433 None
11434 }
11435
11436 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11437 self.active_excerpt(cx)?
11438 .1
11439 .read(cx)
11440 .file()
11441 .and_then(|f| f.as_local())
11442 }
11443
11444 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11445 if let Some(target) = self.target_file(cx) {
11446 cx.reveal_path(&target.abs_path(cx));
11447 }
11448 }
11449
11450 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11451 if let Some(file) = self.target_file(cx) {
11452 if let Some(path) = file.abs_path(cx).to_str() {
11453 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11454 }
11455 }
11456 }
11457
11458 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11459 if let Some(file) = self.target_file(cx) {
11460 if let Some(path) = file.path().to_str() {
11461 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11462 }
11463 }
11464 }
11465
11466 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11467 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11468
11469 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11470 self.start_git_blame(true, cx);
11471 }
11472
11473 cx.notify();
11474 }
11475
11476 pub fn toggle_git_blame_inline(
11477 &mut self,
11478 _: &ToggleGitBlameInline,
11479 cx: &mut ViewContext<Self>,
11480 ) {
11481 self.toggle_git_blame_inline_internal(true, cx);
11482 cx.notify();
11483 }
11484
11485 pub fn git_blame_inline_enabled(&self) -> bool {
11486 self.git_blame_inline_enabled
11487 }
11488
11489 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11490 self.show_selection_menu = self
11491 .show_selection_menu
11492 .map(|show_selections_menu| !show_selections_menu)
11493 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11494
11495 cx.notify();
11496 }
11497
11498 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11499 self.show_selection_menu
11500 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11501 }
11502
11503 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11504 if let Some(project) = self.project.as_ref() {
11505 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11506 return;
11507 };
11508
11509 if buffer.read(cx).file().is_none() {
11510 return;
11511 }
11512
11513 let focused = self.focus_handle(cx).contains_focused(cx);
11514
11515 let project = project.clone();
11516 let blame =
11517 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11518 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11519 self.blame = Some(blame);
11520 }
11521 }
11522
11523 fn toggle_git_blame_inline_internal(
11524 &mut self,
11525 user_triggered: bool,
11526 cx: &mut ViewContext<Self>,
11527 ) {
11528 if self.git_blame_inline_enabled {
11529 self.git_blame_inline_enabled = false;
11530 self.show_git_blame_inline = false;
11531 self.show_git_blame_inline_delay_task.take();
11532 } else {
11533 self.git_blame_inline_enabled = true;
11534 self.start_git_blame_inline(user_triggered, cx);
11535 }
11536
11537 cx.notify();
11538 }
11539
11540 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11541 self.start_git_blame(user_triggered, cx);
11542
11543 if ProjectSettings::get_global(cx)
11544 .git
11545 .inline_blame_delay()
11546 .is_some()
11547 {
11548 self.start_inline_blame_timer(cx);
11549 } else {
11550 self.show_git_blame_inline = true
11551 }
11552 }
11553
11554 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11555 self.blame.as_ref()
11556 }
11557
11558 pub fn show_git_blame_gutter(&self) -> bool {
11559 self.show_git_blame_gutter
11560 }
11561
11562 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11563 self.show_git_blame_gutter && self.has_blame_entries(cx)
11564 }
11565
11566 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11567 self.show_git_blame_inline
11568 && self.focus_handle.is_focused(cx)
11569 && !self.newest_selection_head_on_empty_line(cx)
11570 && self.has_blame_entries(cx)
11571 }
11572
11573 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11574 self.blame()
11575 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11576 }
11577
11578 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11579 let cursor_anchor = self.selections.newest_anchor().head();
11580
11581 let snapshot = self.buffer.read(cx).snapshot(cx);
11582 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11583
11584 snapshot.line_len(buffer_row) == 0
11585 }
11586
11587 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11588 let buffer_and_selection = maybe!({
11589 let selection = self.selections.newest::<Point>(cx);
11590 let selection_range = selection.range();
11591
11592 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11593 (buffer, selection_range.start.row..selection_range.end.row)
11594 } else {
11595 let multi_buffer = self.buffer().read(cx);
11596 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
11597 let buffer_ranges = multi_buffer_snapshot.range_to_buffer_ranges(selection_range);
11598
11599 let (excerpt, range) = if selection.reversed {
11600 buffer_ranges.first()
11601 } else {
11602 buffer_ranges.last()
11603 }?;
11604
11605 let snapshot = excerpt.buffer();
11606 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11607 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11608 (
11609 multi_buffer.buffer(excerpt.buffer_id()).unwrap().clone(),
11610 selection,
11611 )
11612 };
11613
11614 Some((buffer, selection))
11615 });
11616
11617 let Some((buffer, selection)) = buffer_and_selection else {
11618 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11619 };
11620
11621 let Some(project) = self.project.as_ref() else {
11622 return Task::ready(Err(anyhow!("editor does not have project")));
11623 };
11624
11625 project.update(cx, |project, cx| {
11626 project.get_permalink_to_line(&buffer, selection, cx)
11627 })
11628 }
11629
11630 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11631 let permalink_task = self.get_permalink_to_line(cx);
11632 let workspace = self.workspace();
11633
11634 cx.spawn(|_, mut cx| async move {
11635 match permalink_task.await {
11636 Ok(permalink) => {
11637 cx.update(|cx| {
11638 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11639 })
11640 .ok();
11641 }
11642 Err(err) => {
11643 let message = format!("Failed to copy permalink: {err}");
11644
11645 Err::<(), anyhow::Error>(err).log_err();
11646
11647 if let Some(workspace) = workspace {
11648 workspace
11649 .update(&mut cx, |workspace, cx| {
11650 struct CopyPermalinkToLine;
11651
11652 workspace.show_toast(
11653 Toast::new(
11654 NotificationId::unique::<CopyPermalinkToLine>(),
11655 message,
11656 ),
11657 cx,
11658 )
11659 })
11660 .ok();
11661 }
11662 }
11663 }
11664 })
11665 .detach();
11666 }
11667
11668 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11669 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11670 if let Some(file) = self.target_file(cx) {
11671 if let Some(path) = file.path().to_str() {
11672 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11673 }
11674 }
11675 }
11676
11677 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11678 let permalink_task = self.get_permalink_to_line(cx);
11679 let workspace = self.workspace();
11680
11681 cx.spawn(|_, mut cx| async move {
11682 match permalink_task.await {
11683 Ok(permalink) => {
11684 cx.update(|cx| {
11685 cx.open_url(permalink.as_ref());
11686 })
11687 .ok();
11688 }
11689 Err(err) => {
11690 let message = format!("Failed to open permalink: {err}");
11691
11692 Err::<(), anyhow::Error>(err).log_err();
11693
11694 if let Some(workspace) = workspace {
11695 workspace
11696 .update(&mut cx, |workspace, cx| {
11697 struct OpenPermalinkToLine;
11698
11699 workspace.show_toast(
11700 Toast::new(
11701 NotificationId::unique::<OpenPermalinkToLine>(),
11702 message,
11703 ),
11704 cx,
11705 )
11706 })
11707 .ok();
11708 }
11709 }
11710 }
11711 })
11712 .detach();
11713 }
11714
11715 pub fn insert_uuid_v4(&mut self, _: &InsertUuidV4, cx: &mut ViewContext<Self>) {
11716 self.insert_uuid(UuidVersion::V4, cx);
11717 }
11718
11719 pub fn insert_uuid_v7(&mut self, _: &InsertUuidV7, cx: &mut ViewContext<Self>) {
11720 self.insert_uuid(UuidVersion::V7, cx);
11721 }
11722
11723 fn insert_uuid(&mut self, version: UuidVersion, cx: &mut ViewContext<Self>) {
11724 self.transact(cx, |this, cx| {
11725 let edits = this
11726 .selections
11727 .all::<Point>(cx)
11728 .into_iter()
11729 .map(|selection| {
11730 let uuid = match version {
11731 UuidVersion::V4 => uuid::Uuid::new_v4(),
11732 UuidVersion::V7 => uuid::Uuid::now_v7(),
11733 };
11734
11735 (selection.range(), uuid.to_string())
11736 });
11737 this.edit(edits, cx);
11738 this.refresh_inline_completion(true, false, cx);
11739 });
11740 }
11741
11742 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11743 /// last highlight added will be used.
11744 ///
11745 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11746 pub fn highlight_rows<T: 'static>(
11747 &mut self,
11748 range: Range<Anchor>,
11749 color: Hsla,
11750 should_autoscroll: bool,
11751 cx: &mut ViewContext<Self>,
11752 ) {
11753 let snapshot = self.buffer().read(cx).snapshot(cx);
11754 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11755 let ix = row_highlights.binary_search_by(|highlight| {
11756 Ordering::Equal
11757 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11758 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11759 });
11760
11761 if let Err(mut ix) = ix {
11762 let index = post_inc(&mut self.highlight_order);
11763
11764 // If this range intersects with the preceding highlight, then merge it with
11765 // the preceding highlight. Otherwise insert a new highlight.
11766 let mut merged = false;
11767 if ix > 0 {
11768 let prev_highlight = &mut row_highlights[ix - 1];
11769 if prev_highlight
11770 .range
11771 .end
11772 .cmp(&range.start, &snapshot)
11773 .is_ge()
11774 {
11775 ix -= 1;
11776 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11777 prev_highlight.range.end = range.end;
11778 }
11779 merged = true;
11780 prev_highlight.index = index;
11781 prev_highlight.color = color;
11782 prev_highlight.should_autoscroll = should_autoscroll;
11783 }
11784 }
11785
11786 if !merged {
11787 row_highlights.insert(
11788 ix,
11789 RowHighlight {
11790 range: range.clone(),
11791 index,
11792 color,
11793 should_autoscroll,
11794 },
11795 );
11796 }
11797
11798 // If any of the following highlights intersect with this one, merge them.
11799 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11800 let highlight = &row_highlights[ix];
11801 if next_highlight
11802 .range
11803 .start
11804 .cmp(&highlight.range.end, &snapshot)
11805 .is_le()
11806 {
11807 if next_highlight
11808 .range
11809 .end
11810 .cmp(&highlight.range.end, &snapshot)
11811 .is_gt()
11812 {
11813 row_highlights[ix].range.end = next_highlight.range.end;
11814 }
11815 row_highlights.remove(ix + 1);
11816 } else {
11817 break;
11818 }
11819 }
11820 }
11821 }
11822
11823 /// Remove any highlighted row ranges of the given type that intersect the
11824 /// given ranges.
11825 pub fn remove_highlighted_rows<T: 'static>(
11826 &mut self,
11827 ranges_to_remove: Vec<Range<Anchor>>,
11828 cx: &mut ViewContext<Self>,
11829 ) {
11830 let snapshot = self.buffer().read(cx).snapshot(cx);
11831 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11832 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11833 row_highlights.retain(|highlight| {
11834 while let Some(range_to_remove) = ranges_to_remove.peek() {
11835 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11836 Ordering::Less | Ordering::Equal => {
11837 ranges_to_remove.next();
11838 }
11839 Ordering::Greater => {
11840 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11841 Ordering::Less | Ordering::Equal => {
11842 return false;
11843 }
11844 Ordering::Greater => break,
11845 }
11846 }
11847 }
11848 }
11849
11850 true
11851 })
11852 }
11853
11854 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11855 pub fn clear_row_highlights<T: 'static>(&mut self) {
11856 self.highlighted_rows.remove(&TypeId::of::<T>());
11857 }
11858
11859 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11860 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11861 self.highlighted_rows
11862 .get(&TypeId::of::<T>())
11863 .map_or(&[] as &[_], |vec| vec.as_slice())
11864 .iter()
11865 .map(|highlight| (highlight.range.clone(), highlight.color))
11866 }
11867
11868 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11869 /// Returns a map of display rows that are highlighted and their corresponding highlight color.
11870 /// Allows to ignore certain kinds of highlights.
11871 pub fn highlighted_display_rows(
11872 &mut self,
11873 cx: &mut WindowContext,
11874 ) -> BTreeMap<DisplayRow, Hsla> {
11875 let snapshot = self.snapshot(cx);
11876 let mut used_highlight_orders = HashMap::default();
11877 self.highlighted_rows
11878 .iter()
11879 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11880 .fold(
11881 BTreeMap::<DisplayRow, Hsla>::new(),
11882 |mut unique_rows, highlight| {
11883 let start = highlight.range.start.to_display_point(&snapshot);
11884 let end = highlight.range.end.to_display_point(&snapshot);
11885 let start_row = start.row().0;
11886 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11887 && end.column() == 0
11888 {
11889 end.row().0.saturating_sub(1)
11890 } else {
11891 end.row().0
11892 };
11893 for row in start_row..=end_row {
11894 let used_index =
11895 used_highlight_orders.entry(row).or_insert(highlight.index);
11896 if highlight.index >= *used_index {
11897 *used_index = highlight.index;
11898 unique_rows.insert(DisplayRow(row), highlight.color);
11899 }
11900 }
11901 unique_rows
11902 },
11903 )
11904 }
11905
11906 pub fn highlighted_display_row_for_autoscroll(
11907 &self,
11908 snapshot: &DisplaySnapshot,
11909 ) -> Option<DisplayRow> {
11910 self.highlighted_rows
11911 .values()
11912 .flat_map(|highlighted_rows| highlighted_rows.iter())
11913 .filter_map(|highlight| {
11914 if highlight.should_autoscroll {
11915 Some(highlight.range.start.to_display_point(snapshot).row())
11916 } else {
11917 None
11918 }
11919 })
11920 .min()
11921 }
11922
11923 pub fn set_search_within_ranges(
11924 &mut self,
11925 ranges: &[Range<Anchor>],
11926 cx: &mut ViewContext<Self>,
11927 ) {
11928 self.highlight_background::<SearchWithinRange>(
11929 ranges,
11930 |colors| colors.editor_document_highlight_read_background,
11931 cx,
11932 )
11933 }
11934
11935 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11936 self.breadcrumb_header = Some(new_header);
11937 }
11938
11939 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11940 self.clear_background_highlights::<SearchWithinRange>(cx);
11941 }
11942
11943 pub fn highlight_background<T: 'static>(
11944 &mut self,
11945 ranges: &[Range<Anchor>],
11946 color_fetcher: fn(&ThemeColors) -> Hsla,
11947 cx: &mut ViewContext<Self>,
11948 ) {
11949 self.background_highlights
11950 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11951 self.scrollbar_marker_state.dirty = true;
11952 cx.notify();
11953 }
11954
11955 pub fn clear_background_highlights<T: 'static>(
11956 &mut self,
11957 cx: &mut ViewContext<Self>,
11958 ) -> Option<BackgroundHighlight> {
11959 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11960 if !text_highlights.1.is_empty() {
11961 self.scrollbar_marker_state.dirty = true;
11962 cx.notify();
11963 }
11964 Some(text_highlights)
11965 }
11966
11967 pub fn highlight_gutter<T: 'static>(
11968 &mut self,
11969 ranges: &[Range<Anchor>],
11970 color_fetcher: fn(&AppContext) -> Hsla,
11971 cx: &mut ViewContext<Self>,
11972 ) {
11973 self.gutter_highlights
11974 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11975 cx.notify();
11976 }
11977
11978 pub fn clear_gutter_highlights<T: 'static>(
11979 &mut self,
11980 cx: &mut ViewContext<Self>,
11981 ) -> Option<GutterHighlight> {
11982 cx.notify();
11983 self.gutter_highlights.remove(&TypeId::of::<T>())
11984 }
11985
11986 #[cfg(feature = "test-support")]
11987 pub fn all_text_background_highlights(
11988 &mut self,
11989 cx: &mut ViewContext<Self>,
11990 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11991 let snapshot = self.snapshot(cx);
11992 let buffer = &snapshot.buffer_snapshot;
11993 let start = buffer.anchor_before(0);
11994 let end = buffer.anchor_after(buffer.len());
11995 let theme = cx.theme().colors();
11996 self.background_highlights_in_range(start..end, &snapshot, theme)
11997 }
11998
11999 #[cfg(feature = "test-support")]
12000 pub fn search_background_highlights(
12001 &mut self,
12002 cx: &mut ViewContext<Self>,
12003 ) -> Vec<Range<Point>> {
12004 let snapshot = self.buffer().read(cx).snapshot(cx);
12005
12006 let highlights = self
12007 .background_highlights
12008 .get(&TypeId::of::<items::BufferSearchHighlights>());
12009
12010 if let Some((_color, ranges)) = highlights {
12011 ranges
12012 .iter()
12013 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
12014 .collect_vec()
12015 } else {
12016 vec![]
12017 }
12018 }
12019
12020 fn document_highlights_for_position<'a>(
12021 &'a self,
12022 position: Anchor,
12023 buffer: &'a MultiBufferSnapshot,
12024 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
12025 let read_highlights = self
12026 .background_highlights
12027 .get(&TypeId::of::<DocumentHighlightRead>())
12028 .map(|h| &h.1);
12029 let write_highlights = self
12030 .background_highlights
12031 .get(&TypeId::of::<DocumentHighlightWrite>())
12032 .map(|h| &h.1);
12033 let left_position = position.bias_left(buffer);
12034 let right_position = position.bias_right(buffer);
12035 read_highlights
12036 .into_iter()
12037 .chain(write_highlights)
12038 .flat_map(move |ranges| {
12039 let start_ix = match ranges.binary_search_by(|probe| {
12040 let cmp = probe.end.cmp(&left_position, buffer);
12041 if cmp.is_ge() {
12042 Ordering::Greater
12043 } else {
12044 Ordering::Less
12045 }
12046 }) {
12047 Ok(i) | Err(i) => i,
12048 };
12049
12050 ranges[start_ix..]
12051 .iter()
12052 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12053 })
12054 }
12055
12056 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12057 self.background_highlights
12058 .get(&TypeId::of::<T>())
12059 .map_or(false, |(_, highlights)| !highlights.is_empty())
12060 }
12061
12062 pub fn background_highlights_in_range(
12063 &self,
12064 search_range: Range<Anchor>,
12065 display_snapshot: &DisplaySnapshot,
12066 theme: &ThemeColors,
12067 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12068 let mut results = Vec::new();
12069 for (color_fetcher, ranges) in self.background_highlights.values() {
12070 let color = color_fetcher(theme);
12071 let start_ix = match ranges.binary_search_by(|probe| {
12072 let cmp = probe
12073 .end
12074 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12075 if cmp.is_gt() {
12076 Ordering::Greater
12077 } else {
12078 Ordering::Less
12079 }
12080 }) {
12081 Ok(i) | Err(i) => i,
12082 };
12083 for range in &ranges[start_ix..] {
12084 if range
12085 .start
12086 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12087 .is_ge()
12088 {
12089 break;
12090 }
12091
12092 let start = range.start.to_display_point(display_snapshot);
12093 let end = range.end.to_display_point(display_snapshot);
12094 results.push((start..end, color))
12095 }
12096 }
12097 results
12098 }
12099
12100 pub fn background_highlight_row_ranges<T: 'static>(
12101 &self,
12102 search_range: Range<Anchor>,
12103 display_snapshot: &DisplaySnapshot,
12104 count: usize,
12105 ) -> Vec<RangeInclusive<DisplayPoint>> {
12106 let mut results = Vec::new();
12107 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12108 return vec![];
12109 };
12110
12111 let start_ix = match ranges.binary_search_by(|probe| {
12112 let cmp = probe
12113 .end
12114 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12115 if cmp.is_gt() {
12116 Ordering::Greater
12117 } else {
12118 Ordering::Less
12119 }
12120 }) {
12121 Ok(i) | Err(i) => i,
12122 };
12123 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12124 if let (Some(start_display), Some(end_display)) = (start, end) {
12125 results.push(
12126 start_display.to_display_point(display_snapshot)
12127 ..=end_display.to_display_point(display_snapshot),
12128 );
12129 }
12130 };
12131 let mut start_row: Option<Point> = None;
12132 let mut end_row: Option<Point> = None;
12133 if ranges.len() > count {
12134 return Vec::new();
12135 }
12136 for range in &ranges[start_ix..] {
12137 if range
12138 .start
12139 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12140 .is_ge()
12141 {
12142 break;
12143 }
12144 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12145 if let Some(current_row) = &end_row {
12146 if end.row == current_row.row {
12147 continue;
12148 }
12149 }
12150 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12151 if start_row.is_none() {
12152 assert_eq!(end_row, None);
12153 start_row = Some(start);
12154 end_row = Some(end);
12155 continue;
12156 }
12157 if let Some(current_end) = end_row.as_mut() {
12158 if start.row > current_end.row + 1 {
12159 push_region(start_row, end_row);
12160 start_row = Some(start);
12161 end_row = Some(end);
12162 } else {
12163 // Merge two hunks.
12164 *current_end = end;
12165 }
12166 } else {
12167 unreachable!();
12168 }
12169 }
12170 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12171 push_region(start_row, end_row);
12172 results
12173 }
12174
12175 pub fn gutter_highlights_in_range(
12176 &self,
12177 search_range: Range<Anchor>,
12178 display_snapshot: &DisplaySnapshot,
12179 cx: &AppContext,
12180 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12181 let mut results = Vec::new();
12182 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12183 let color = color_fetcher(cx);
12184 let start_ix = match ranges.binary_search_by(|probe| {
12185 let cmp = probe
12186 .end
12187 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12188 if cmp.is_gt() {
12189 Ordering::Greater
12190 } else {
12191 Ordering::Less
12192 }
12193 }) {
12194 Ok(i) | Err(i) => i,
12195 };
12196 for range in &ranges[start_ix..] {
12197 if range
12198 .start
12199 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12200 .is_ge()
12201 {
12202 break;
12203 }
12204
12205 let start = range.start.to_display_point(display_snapshot);
12206 let end = range.end.to_display_point(display_snapshot);
12207 results.push((start..end, color))
12208 }
12209 }
12210 results
12211 }
12212
12213 /// Get the text ranges corresponding to the redaction query
12214 pub fn redacted_ranges(
12215 &self,
12216 search_range: Range<Anchor>,
12217 display_snapshot: &DisplaySnapshot,
12218 cx: &WindowContext,
12219 ) -> Vec<Range<DisplayPoint>> {
12220 display_snapshot
12221 .buffer_snapshot
12222 .redacted_ranges(search_range, |file| {
12223 if let Some(file) = file {
12224 file.is_private()
12225 && EditorSettings::get(
12226 Some(SettingsLocation {
12227 worktree_id: file.worktree_id(cx),
12228 path: file.path().as_ref(),
12229 }),
12230 cx,
12231 )
12232 .redact_private_values
12233 } else {
12234 false
12235 }
12236 })
12237 .map(|range| {
12238 range.start.to_display_point(display_snapshot)
12239 ..range.end.to_display_point(display_snapshot)
12240 })
12241 .collect()
12242 }
12243
12244 pub fn highlight_text<T: 'static>(
12245 &mut self,
12246 ranges: Vec<Range<Anchor>>,
12247 style: HighlightStyle,
12248 cx: &mut ViewContext<Self>,
12249 ) {
12250 self.display_map.update(cx, |map, _| {
12251 map.highlight_text(TypeId::of::<T>(), ranges, style)
12252 });
12253 cx.notify();
12254 }
12255
12256 pub(crate) fn highlight_inlays<T: 'static>(
12257 &mut self,
12258 highlights: Vec<InlayHighlight>,
12259 style: HighlightStyle,
12260 cx: &mut ViewContext<Self>,
12261 ) {
12262 self.display_map.update(cx, |map, _| {
12263 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12264 });
12265 cx.notify();
12266 }
12267
12268 pub fn text_highlights<'a, T: 'static>(
12269 &'a self,
12270 cx: &'a AppContext,
12271 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12272 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12273 }
12274
12275 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12276 let cleared = self
12277 .display_map
12278 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12279 if cleared {
12280 cx.notify();
12281 }
12282 }
12283
12284 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12285 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12286 && self.focus_handle.is_focused(cx)
12287 }
12288
12289 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12290 self.show_cursor_when_unfocused = is_enabled;
12291 cx.notify();
12292 }
12293
12294 pub fn lsp_store(&self, cx: &AppContext) -> Option<Model<LspStore>> {
12295 self.project
12296 .as_ref()
12297 .map(|project| project.read(cx).lsp_store())
12298 }
12299
12300 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12301 cx.notify();
12302 }
12303
12304 fn on_buffer_event(
12305 &mut self,
12306 multibuffer: Model<MultiBuffer>,
12307 event: &multi_buffer::Event,
12308 cx: &mut ViewContext<Self>,
12309 ) {
12310 match event {
12311 multi_buffer::Event::Edited {
12312 singleton_buffer_edited,
12313 edited_buffer: buffer_edited,
12314 } => {
12315 self.scrollbar_marker_state.dirty = true;
12316 self.active_indent_guides_state.dirty = true;
12317 self.refresh_active_diagnostics(cx);
12318 self.refresh_code_actions(cx);
12319 if self.has_active_inline_completion() {
12320 self.update_visible_inline_completion(cx);
12321 }
12322 if let Some(buffer) = buffer_edited {
12323 let buffer_id = buffer.read(cx).remote_id();
12324 if !self.registered_buffers.contains_key(&buffer_id) {
12325 if let Some(lsp_store) = self.lsp_store(cx) {
12326 lsp_store.update(cx, |lsp_store, cx| {
12327 self.registered_buffers.insert(
12328 buffer_id,
12329 lsp_store.register_buffer_with_language_servers(&buffer, cx),
12330 );
12331 })
12332 }
12333 }
12334 }
12335 cx.emit(EditorEvent::BufferEdited);
12336 cx.emit(SearchEvent::MatchesInvalidated);
12337 if *singleton_buffer_edited {
12338 if let Some(project) = &self.project {
12339 let project = project.read(cx);
12340 #[allow(clippy::mutable_key_type)]
12341 let languages_affected = multibuffer
12342 .read(cx)
12343 .all_buffers()
12344 .into_iter()
12345 .filter_map(|buffer| {
12346 let buffer = buffer.read(cx);
12347 let language = buffer.language()?;
12348 if project.is_local()
12349 && project
12350 .language_servers_for_local_buffer(buffer, cx)
12351 .count()
12352 == 0
12353 {
12354 None
12355 } else {
12356 Some(language)
12357 }
12358 })
12359 .cloned()
12360 .collect::<HashSet<_>>();
12361 if !languages_affected.is_empty() {
12362 self.refresh_inlay_hints(
12363 InlayHintRefreshReason::BufferEdited(languages_affected),
12364 cx,
12365 );
12366 }
12367 }
12368 }
12369
12370 let Some(project) = &self.project else { return };
12371 let (telemetry, is_via_ssh) = {
12372 let project = project.read(cx);
12373 let telemetry = project.client().telemetry().clone();
12374 let is_via_ssh = project.is_via_ssh();
12375 (telemetry, is_via_ssh)
12376 };
12377 refresh_linked_ranges(self, cx);
12378 telemetry.log_edit_event("editor", is_via_ssh);
12379 }
12380 multi_buffer::Event::ExcerptsAdded {
12381 buffer,
12382 predecessor,
12383 excerpts,
12384 } => {
12385 self.tasks_update_task = Some(self.refresh_runnables(cx));
12386 let buffer_id = buffer.read(cx).remote_id();
12387 if !self.diff_map.diff_bases.contains_key(&buffer_id) {
12388 if let Some(project) = &self.project {
12389 get_unstaged_changes_for_buffers(project, [buffer.clone()], cx);
12390 }
12391 }
12392 cx.emit(EditorEvent::ExcerptsAdded {
12393 buffer: buffer.clone(),
12394 predecessor: *predecessor,
12395 excerpts: excerpts.clone(),
12396 });
12397 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12398 }
12399 multi_buffer::Event::ExcerptsRemoved { ids } => {
12400 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12401 let buffer = self.buffer.read(cx);
12402 self.registered_buffers
12403 .retain(|buffer_id, _| buffer.buffer(*buffer_id).is_some());
12404 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12405 }
12406 multi_buffer::Event::ExcerptsEdited { ids } => {
12407 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12408 }
12409 multi_buffer::Event::ExcerptsExpanded { ids } => {
12410 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12411 }
12412 multi_buffer::Event::Reparsed(buffer_id) => {
12413 self.tasks_update_task = Some(self.refresh_runnables(cx));
12414
12415 cx.emit(EditorEvent::Reparsed(*buffer_id));
12416 }
12417 multi_buffer::Event::LanguageChanged(buffer_id) => {
12418 linked_editing_ranges::refresh_linked_ranges(self, cx);
12419 cx.emit(EditorEvent::Reparsed(*buffer_id));
12420 cx.notify();
12421 }
12422 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12423 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12424 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12425 cx.emit(EditorEvent::TitleChanged)
12426 }
12427 // multi_buffer::Event::DiffBaseChanged => {
12428 // self.scrollbar_marker_state.dirty = true;
12429 // cx.emit(EditorEvent::DiffBaseChanged);
12430 // cx.notify();
12431 // }
12432 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12433 multi_buffer::Event::DiagnosticsUpdated => {
12434 self.refresh_active_diagnostics(cx);
12435 self.scrollbar_marker_state.dirty = true;
12436 cx.notify();
12437 }
12438 _ => {}
12439 };
12440 }
12441
12442 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12443 cx.notify();
12444 }
12445
12446 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12447 self.tasks_update_task = Some(self.refresh_runnables(cx));
12448 self.refresh_inline_completion(true, false, cx);
12449 self.refresh_inlay_hints(
12450 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12451 self.selections.newest_anchor().head(),
12452 &self.buffer.read(cx).snapshot(cx),
12453 cx,
12454 )),
12455 cx,
12456 );
12457
12458 let old_cursor_shape = self.cursor_shape;
12459
12460 {
12461 let editor_settings = EditorSettings::get_global(cx);
12462 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12463 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12464 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12465 }
12466
12467 if old_cursor_shape != self.cursor_shape {
12468 cx.emit(EditorEvent::CursorShapeChanged);
12469 }
12470
12471 let project_settings = ProjectSettings::get_global(cx);
12472 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12473
12474 if self.mode == EditorMode::Full {
12475 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12476 if self.git_blame_inline_enabled != inline_blame_enabled {
12477 self.toggle_git_blame_inline_internal(false, cx);
12478 }
12479 }
12480
12481 cx.notify();
12482 }
12483
12484 pub fn set_searchable(&mut self, searchable: bool) {
12485 self.searchable = searchable;
12486 }
12487
12488 pub fn searchable(&self) -> bool {
12489 self.searchable
12490 }
12491
12492 fn open_proposed_changes_editor(
12493 &mut self,
12494 _: &OpenProposedChangesEditor,
12495 cx: &mut ViewContext<Self>,
12496 ) {
12497 let Some(workspace) = self.workspace() else {
12498 cx.propagate();
12499 return;
12500 };
12501
12502 let selections = self.selections.all::<usize>(cx);
12503 let multi_buffer = self.buffer.read(cx);
12504 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
12505 let mut new_selections_by_buffer = HashMap::default();
12506 for selection in selections {
12507 for (excerpt, range) in
12508 multi_buffer_snapshot.range_to_buffer_ranges(selection.start..selection.end)
12509 {
12510 let mut range = range.to_point(excerpt.buffer());
12511 range.start.column = 0;
12512 range.end.column = excerpt.buffer().line_len(range.end.row);
12513 new_selections_by_buffer
12514 .entry(multi_buffer.buffer(excerpt.buffer_id()).unwrap())
12515 .or_insert(Vec::new())
12516 .push(range)
12517 }
12518 }
12519
12520 let proposed_changes_buffers = new_selections_by_buffer
12521 .into_iter()
12522 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12523 .collect::<Vec<_>>();
12524 let proposed_changes_editor = cx.new_view(|cx| {
12525 ProposedChangesEditor::new(
12526 "Proposed changes",
12527 proposed_changes_buffers,
12528 self.project.clone(),
12529 cx,
12530 )
12531 });
12532
12533 cx.window_context().defer(move |cx| {
12534 workspace.update(cx, |workspace, cx| {
12535 workspace.active_pane().update(cx, |pane, cx| {
12536 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12537 });
12538 });
12539 });
12540 }
12541
12542 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12543 self.open_excerpts_common(None, true, cx)
12544 }
12545
12546 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12547 self.open_excerpts_common(None, false, cx)
12548 }
12549
12550 fn open_excerpts_common(
12551 &mut self,
12552 jump_data: Option<JumpData>,
12553 split: bool,
12554 cx: &mut ViewContext<Self>,
12555 ) {
12556 let Some(workspace) = self.workspace() else {
12557 cx.propagate();
12558 return;
12559 };
12560
12561 if self.buffer.read(cx).is_singleton() {
12562 cx.propagate();
12563 return;
12564 }
12565
12566 let mut new_selections_by_buffer = HashMap::default();
12567 match &jump_data {
12568 Some(JumpData::MultiBufferPoint {
12569 excerpt_id,
12570 position,
12571 anchor,
12572 line_offset_from_top,
12573 }) => {
12574 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12575 if let Some(buffer) = multi_buffer_snapshot
12576 .buffer_id_for_excerpt(*excerpt_id)
12577 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12578 {
12579 let buffer_snapshot = buffer.read(cx).snapshot();
12580 let jump_to_point = if buffer_snapshot.can_resolve(anchor) {
12581 language::ToPoint::to_point(anchor, &buffer_snapshot)
12582 } else {
12583 buffer_snapshot.clip_point(*position, Bias::Left)
12584 };
12585 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12586 new_selections_by_buffer.insert(
12587 buffer,
12588 (
12589 vec![jump_to_offset..jump_to_offset],
12590 Some(*line_offset_from_top),
12591 ),
12592 );
12593 }
12594 }
12595 Some(JumpData::MultiBufferRow {
12596 row,
12597 line_offset_from_top,
12598 }) => {
12599 let point = MultiBufferPoint::new(row.0, 0);
12600 if let Some((buffer, buffer_point, _)) =
12601 self.buffer.read(cx).point_to_buffer_point(point, cx)
12602 {
12603 let buffer_offset = buffer.read(cx).point_to_offset(buffer_point);
12604 new_selections_by_buffer
12605 .entry(buffer)
12606 .or_insert((Vec::new(), Some(*line_offset_from_top)))
12607 .0
12608 .push(buffer_offset..buffer_offset)
12609 }
12610 }
12611 None => {
12612 let selections = self.selections.all::<usize>(cx);
12613 let multi_buffer = self.buffer.read(cx);
12614 for selection in selections {
12615 for (excerpt, mut range) in multi_buffer
12616 .snapshot(cx)
12617 .range_to_buffer_ranges(selection.range())
12618 {
12619 // When editing branch buffers, jump to the corresponding location
12620 // in their base buffer.
12621 let mut buffer_handle = multi_buffer.buffer(excerpt.buffer_id()).unwrap();
12622 let buffer = buffer_handle.read(cx);
12623 if let Some(base_buffer) = buffer.base_buffer() {
12624 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12625 buffer_handle = base_buffer;
12626 }
12627
12628 if selection.reversed {
12629 mem::swap(&mut range.start, &mut range.end);
12630 }
12631 new_selections_by_buffer
12632 .entry(buffer_handle)
12633 .or_insert((Vec::new(), None))
12634 .0
12635 .push(range)
12636 }
12637 }
12638 }
12639 }
12640
12641 if new_selections_by_buffer.is_empty() {
12642 return;
12643 }
12644
12645 // We defer the pane interaction because we ourselves are a workspace item
12646 // and activating a new item causes the pane to call a method on us reentrantly,
12647 // which panics if we're on the stack.
12648 cx.window_context().defer(move |cx| {
12649 workspace.update(cx, |workspace, cx| {
12650 let pane = if split {
12651 workspace.adjacent_pane(cx)
12652 } else {
12653 workspace.active_pane().clone()
12654 };
12655
12656 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12657 let editor = buffer
12658 .read(cx)
12659 .file()
12660 .is_none()
12661 .then(|| {
12662 // Handle file-less buffers separately: those are not really the project items, so won't have a project path or entity id,
12663 // so `workspace.open_project_item` will never find them, always opening a new editor.
12664 // Instead, we try to activate the existing editor in the pane first.
12665 let (editor, pane_item_index) =
12666 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12667 let editor = item.downcast::<Editor>()?;
12668 let singleton_buffer =
12669 editor.read(cx).buffer().read(cx).as_singleton()?;
12670 if singleton_buffer == buffer {
12671 Some((editor, i))
12672 } else {
12673 None
12674 }
12675 })?;
12676 pane.update(cx, |pane, cx| {
12677 pane.activate_item(pane_item_index, true, true, cx)
12678 });
12679 Some(editor)
12680 })
12681 .flatten()
12682 .unwrap_or_else(|| {
12683 workspace.open_project_item::<Self>(
12684 pane.clone(),
12685 buffer,
12686 true,
12687 true,
12688 cx,
12689 )
12690 });
12691
12692 editor.update(cx, |editor, cx| {
12693 let autoscroll = match scroll_offset {
12694 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12695 None => Autoscroll::newest(),
12696 };
12697 let nav_history = editor.nav_history.take();
12698 editor.change_selections(Some(autoscroll), cx, |s| {
12699 s.select_ranges(ranges);
12700 });
12701 editor.nav_history = nav_history;
12702 });
12703 }
12704 })
12705 });
12706 }
12707
12708 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12709 let snapshot = self.buffer.read(cx).read(cx);
12710 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12711 Some(
12712 ranges
12713 .iter()
12714 .map(move |range| {
12715 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12716 })
12717 .collect(),
12718 )
12719 }
12720
12721 fn selection_replacement_ranges(
12722 &self,
12723 range: Range<OffsetUtf16>,
12724 cx: &mut AppContext,
12725 ) -> Vec<Range<OffsetUtf16>> {
12726 let selections = self.selections.all::<OffsetUtf16>(cx);
12727 let newest_selection = selections
12728 .iter()
12729 .max_by_key(|selection| selection.id)
12730 .unwrap();
12731 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12732 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12733 let snapshot = self.buffer.read(cx).read(cx);
12734 selections
12735 .into_iter()
12736 .map(|mut selection| {
12737 selection.start.0 =
12738 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12739 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12740 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12741 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12742 })
12743 .collect()
12744 }
12745
12746 fn report_editor_event(
12747 &self,
12748 event_type: &'static str,
12749 file_extension: Option<String>,
12750 cx: &AppContext,
12751 ) {
12752 if cfg!(any(test, feature = "test-support")) {
12753 return;
12754 }
12755
12756 let Some(project) = &self.project else { return };
12757
12758 // If None, we are in a file without an extension
12759 let file = self
12760 .buffer
12761 .read(cx)
12762 .as_singleton()
12763 .and_then(|b| b.read(cx).file());
12764 let file_extension = file_extension.or(file
12765 .as_ref()
12766 .and_then(|file| Path::new(file.file_name(cx)).extension())
12767 .and_then(|e| e.to_str())
12768 .map(|a| a.to_string()));
12769
12770 let vim_mode = cx
12771 .global::<SettingsStore>()
12772 .raw_user_settings()
12773 .get("vim_mode")
12774 == Some(&serde_json::Value::Bool(true));
12775
12776 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12777 == language::language_settings::InlineCompletionProvider::Copilot;
12778 let copilot_enabled_for_language = self
12779 .buffer
12780 .read(cx)
12781 .settings_at(0, cx)
12782 .show_inline_completions;
12783
12784 let project = project.read(cx);
12785 telemetry::event!(
12786 event_type,
12787 file_extension,
12788 vim_mode,
12789 copilot_enabled,
12790 copilot_enabled_for_language,
12791 is_via_ssh = project.is_via_ssh(),
12792 );
12793 }
12794
12795 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12796 /// with each line being an array of {text, highlight} objects.
12797 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12798 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12799 return;
12800 };
12801
12802 #[derive(Serialize)]
12803 struct Chunk<'a> {
12804 text: String,
12805 highlight: Option<&'a str>,
12806 }
12807
12808 let snapshot = buffer.read(cx).snapshot();
12809 let range = self
12810 .selected_text_range(false, cx)
12811 .and_then(|selection| {
12812 if selection.range.is_empty() {
12813 None
12814 } else {
12815 Some(selection.range)
12816 }
12817 })
12818 .unwrap_or_else(|| 0..snapshot.len());
12819
12820 let chunks = snapshot.chunks(range, true);
12821 let mut lines = Vec::new();
12822 let mut line: VecDeque<Chunk> = VecDeque::new();
12823
12824 let Some(style) = self.style.as_ref() else {
12825 return;
12826 };
12827
12828 for chunk in chunks {
12829 let highlight = chunk
12830 .syntax_highlight_id
12831 .and_then(|id| id.name(&style.syntax));
12832 let mut chunk_lines = chunk.text.split('\n').peekable();
12833 while let Some(text) = chunk_lines.next() {
12834 let mut merged_with_last_token = false;
12835 if let Some(last_token) = line.back_mut() {
12836 if last_token.highlight == highlight {
12837 last_token.text.push_str(text);
12838 merged_with_last_token = true;
12839 }
12840 }
12841
12842 if !merged_with_last_token {
12843 line.push_back(Chunk {
12844 text: text.into(),
12845 highlight,
12846 });
12847 }
12848
12849 if chunk_lines.peek().is_some() {
12850 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12851 line.pop_front();
12852 }
12853 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12854 line.pop_back();
12855 }
12856
12857 lines.push(mem::take(&mut line));
12858 }
12859 }
12860 }
12861
12862 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12863 return;
12864 };
12865 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12866 }
12867
12868 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
12869 self.request_autoscroll(Autoscroll::newest(), cx);
12870 let position = self.selections.newest_display(cx).start;
12871 mouse_context_menu::deploy_context_menu(self, None, position, cx);
12872 }
12873
12874 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12875 &self.inlay_hint_cache
12876 }
12877
12878 pub fn replay_insert_event(
12879 &mut self,
12880 text: &str,
12881 relative_utf16_range: Option<Range<isize>>,
12882 cx: &mut ViewContext<Self>,
12883 ) {
12884 if !self.input_enabled {
12885 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12886 return;
12887 }
12888 if let Some(relative_utf16_range) = relative_utf16_range {
12889 let selections = self.selections.all::<OffsetUtf16>(cx);
12890 self.change_selections(None, cx, |s| {
12891 let new_ranges = selections.into_iter().map(|range| {
12892 let start = OffsetUtf16(
12893 range
12894 .head()
12895 .0
12896 .saturating_add_signed(relative_utf16_range.start),
12897 );
12898 let end = OffsetUtf16(
12899 range
12900 .head()
12901 .0
12902 .saturating_add_signed(relative_utf16_range.end),
12903 );
12904 start..end
12905 });
12906 s.select_ranges(new_ranges);
12907 });
12908 }
12909
12910 self.handle_input(text, cx);
12911 }
12912
12913 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12914 let Some(provider) = self.semantics_provider.as_ref() else {
12915 return false;
12916 };
12917
12918 let mut supports = false;
12919 self.buffer().read(cx).for_each_buffer(|buffer| {
12920 supports |= provider.supports_inlay_hints(buffer, cx);
12921 });
12922 supports
12923 }
12924
12925 pub fn focus(&self, cx: &mut WindowContext) {
12926 cx.focus(&self.focus_handle)
12927 }
12928
12929 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12930 self.focus_handle.is_focused(cx)
12931 }
12932
12933 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12934 cx.emit(EditorEvent::Focused);
12935
12936 if let Some(descendant) = self
12937 .last_focused_descendant
12938 .take()
12939 .and_then(|descendant| descendant.upgrade())
12940 {
12941 cx.focus(&descendant);
12942 } else {
12943 if let Some(blame) = self.blame.as_ref() {
12944 blame.update(cx, GitBlame::focus)
12945 }
12946
12947 self.blink_manager.update(cx, BlinkManager::enable);
12948 self.show_cursor_names(cx);
12949 self.buffer.update(cx, |buffer, cx| {
12950 buffer.finalize_last_transaction(cx);
12951 if self.leader_peer_id.is_none() {
12952 buffer.set_active_selections(
12953 &self.selections.disjoint_anchors(),
12954 self.selections.line_mode,
12955 self.cursor_shape,
12956 cx,
12957 );
12958 }
12959 });
12960 }
12961 }
12962
12963 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12964 cx.emit(EditorEvent::FocusedIn)
12965 }
12966
12967 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12968 if event.blurred != self.focus_handle {
12969 self.last_focused_descendant = Some(event.blurred);
12970 }
12971 }
12972
12973 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12974 self.blink_manager.update(cx, BlinkManager::disable);
12975 self.buffer
12976 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12977
12978 if let Some(blame) = self.blame.as_ref() {
12979 blame.update(cx, GitBlame::blur)
12980 }
12981 if !self.hover_state.focused(cx) {
12982 hide_hover(self, cx);
12983 }
12984
12985 self.hide_context_menu(cx);
12986 cx.emit(EditorEvent::Blurred);
12987 cx.notify();
12988 }
12989
12990 pub fn register_action<A: Action>(
12991 &mut self,
12992 listener: impl Fn(&A, &mut WindowContext) + 'static,
12993 ) -> Subscription {
12994 let id = self.next_editor_action_id.post_inc();
12995 let listener = Arc::new(listener);
12996 self.editor_actions.borrow_mut().insert(
12997 id,
12998 Box::new(move |cx| {
12999 let cx = cx.window_context();
13000 let listener = listener.clone();
13001 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
13002 let action = action.downcast_ref().unwrap();
13003 if phase == DispatchPhase::Bubble {
13004 listener(action, cx)
13005 }
13006 })
13007 }),
13008 );
13009
13010 let editor_actions = self.editor_actions.clone();
13011 Subscription::new(move || {
13012 editor_actions.borrow_mut().remove(&id);
13013 })
13014 }
13015
13016 pub fn file_header_size(&self) -> u32 {
13017 FILE_HEADER_HEIGHT
13018 }
13019
13020 pub fn revert(
13021 &mut self,
13022 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
13023 cx: &mut ViewContext<Self>,
13024 ) {
13025 self.buffer().update(cx, |multi_buffer, cx| {
13026 for (buffer_id, changes) in revert_changes {
13027 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
13028 buffer.update(cx, |buffer, cx| {
13029 buffer.edit(
13030 changes.into_iter().map(|(range, text)| {
13031 (range, text.to_string().map(Arc::<str>::from))
13032 }),
13033 None,
13034 cx,
13035 );
13036 });
13037 }
13038 }
13039 });
13040 self.change_selections(None, cx, |selections| selections.refresh());
13041 }
13042
13043 pub fn to_pixel_point(
13044 &mut self,
13045 source: multi_buffer::Anchor,
13046 editor_snapshot: &EditorSnapshot,
13047 cx: &mut ViewContext<Self>,
13048 ) -> Option<gpui::Point<Pixels>> {
13049 let source_point = source.to_display_point(editor_snapshot);
13050 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13051 }
13052
13053 pub fn display_to_pixel_point(
13054 &self,
13055 source: DisplayPoint,
13056 editor_snapshot: &EditorSnapshot,
13057 cx: &WindowContext,
13058 ) -> Option<gpui::Point<Pixels>> {
13059 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13060 let text_layout_details = self.text_layout_details(cx);
13061 let scroll_top = text_layout_details
13062 .scroll_anchor
13063 .scroll_position(editor_snapshot)
13064 .y;
13065
13066 if source.row().as_f32() < scroll_top.floor() {
13067 return None;
13068 }
13069 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13070 let source_y = line_height * (source.row().as_f32() - scroll_top);
13071 Some(gpui::Point::new(source_x, source_y))
13072 }
13073
13074 pub fn has_active_completions_menu(&self) -> bool {
13075 self.context_menu.borrow().as_ref().map_or(false, |menu| {
13076 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
13077 })
13078 }
13079
13080 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13081 self.addons
13082 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13083 }
13084
13085 pub fn unregister_addon<T: Addon>(&mut self) {
13086 self.addons.remove(&std::any::TypeId::of::<T>());
13087 }
13088
13089 pub fn addon<T: Addon>(&self) -> Option<&T> {
13090 let type_id = std::any::TypeId::of::<T>();
13091 self.addons
13092 .get(&type_id)
13093 .and_then(|item| item.to_any().downcast_ref::<T>())
13094 }
13095
13096 pub fn add_change_set(
13097 &mut self,
13098 change_set: Model<BufferChangeSet>,
13099 cx: &mut ViewContext<Self>,
13100 ) {
13101 self.diff_map.add_change_set(change_set, cx);
13102 }
13103
13104 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
13105 let text_layout_details = self.text_layout_details(cx);
13106 let style = &text_layout_details.editor_style;
13107 let font_id = cx.text_system().resolve_font(&style.text.font());
13108 let font_size = style.text.font_size.to_pixels(cx.rem_size());
13109 let line_height = style.text.line_height_in_pixels(cx.rem_size());
13110
13111 let em_width = cx
13112 .text_system()
13113 .typographic_bounds(font_id, font_size, 'm')
13114 .unwrap()
13115 .size
13116 .width;
13117
13118 gpui::Point::new(em_width, line_height)
13119 }
13120}
13121
13122fn get_unstaged_changes_for_buffers(
13123 project: &Model<Project>,
13124 buffers: impl IntoIterator<Item = Model<Buffer>>,
13125 cx: &mut ViewContext<Editor>,
13126) {
13127 let mut tasks = Vec::new();
13128 project.update(cx, |project, cx| {
13129 for buffer in buffers {
13130 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
13131 }
13132 });
13133 cx.spawn(|this, mut cx| async move {
13134 let change_sets = futures::future::join_all(tasks).await;
13135 this.update(&mut cx, |this, cx| {
13136 for change_set in change_sets {
13137 if let Some(change_set) = change_set.log_err() {
13138 this.diff_map.add_change_set(change_set, cx);
13139 }
13140 }
13141 })
13142 .ok();
13143 })
13144 .detach();
13145}
13146
13147fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13148 let tab_size = tab_size.get() as usize;
13149 let mut width = offset;
13150
13151 for ch in text.chars() {
13152 width += if ch == '\t' {
13153 tab_size - (width % tab_size)
13154 } else {
13155 1
13156 };
13157 }
13158
13159 width - offset
13160}
13161
13162#[cfg(test)]
13163mod tests {
13164 use super::*;
13165
13166 #[test]
13167 fn test_string_size_with_expanded_tabs() {
13168 let nz = |val| NonZeroU32::new(val).unwrap();
13169 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13170 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13171 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13172 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13173 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13174 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13175 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13176 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13177 }
13178}
13179
13180/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13181struct WordBreakingTokenizer<'a> {
13182 input: &'a str,
13183}
13184
13185impl<'a> WordBreakingTokenizer<'a> {
13186 fn new(input: &'a str) -> Self {
13187 Self { input }
13188 }
13189}
13190
13191fn is_char_ideographic(ch: char) -> bool {
13192 use unicode_script::Script::*;
13193 use unicode_script::UnicodeScript;
13194 matches!(ch.script(), Han | Tangut | Yi)
13195}
13196
13197fn is_grapheme_ideographic(text: &str) -> bool {
13198 text.chars().any(is_char_ideographic)
13199}
13200
13201fn is_grapheme_whitespace(text: &str) -> bool {
13202 text.chars().any(|x| x.is_whitespace())
13203}
13204
13205fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13206 text.chars().next().map_or(false, |ch| {
13207 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13208 })
13209}
13210
13211#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13212struct WordBreakToken<'a> {
13213 token: &'a str,
13214 grapheme_len: usize,
13215 is_whitespace: bool,
13216}
13217
13218impl<'a> Iterator for WordBreakingTokenizer<'a> {
13219 /// Yields a span, the count of graphemes in the token, and whether it was
13220 /// whitespace. Note that it also breaks at word boundaries.
13221 type Item = WordBreakToken<'a>;
13222
13223 fn next(&mut self) -> Option<Self::Item> {
13224 use unicode_segmentation::UnicodeSegmentation;
13225 if self.input.is_empty() {
13226 return None;
13227 }
13228
13229 let mut iter = self.input.graphemes(true).peekable();
13230 let mut offset = 0;
13231 let mut graphemes = 0;
13232 if let Some(first_grapheme) = iter.next() {
13233 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13234 offset += first_grapheme.len();
13235 graphemes += 1;
13236 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13237 if let Some(grapheme) = iter.peek().copied() {
13238 if should_stay_with_preceding_ideograph(grapheme) {
13239 offset += grapheme.len();
13240 graphemes += 1;
13241 }
13242 }
13243 } else {
13244 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13245 let mut next_word_bound = words.peek().copied();
13246 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13247 next_word_bound = words.next();
13248 }
13249 while let Some(grapheme) = iter.peek().copied() {
13250 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13251 break;
13252 };
13253 if is_grapheme_whitespace(grapheme) != is_whitespace {
13254 break;
13255 };
13256 offset += grapheme.len();
13257 graphemes += 1;
13258 iter.next();
13259 }
13260 }
13261 let token = &self.input[..offset];
13262 self.input = &self.input[offset..];
13263 if is_whitespace {
13264 Some(WordBreakToken {
13265 token: " ",
13266 grapheme_len: 1,
13267 is_whitespace: true,
13268 })
13269 } else {
13270 Some(WordBreakToken {
13271 token,
13272 grapheme_len: graphemes,
13273 is_whitespace: false,
13274 })
13275 }
13276 } else {
13277 None
13278 }
13279 }
13280}
13281
13282#[test]
13283fn test_word_breaking_tokenizer() {
13284 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13285 ("", &[]),
13286 (" ", &[(" ", 1, true)]),
13287 ("Ʒ", &[("Ʒ", 1, false)]),
13288 ("Ǽ", &[("Ǽ", 1, false)]),
13289 ("⋑", &[("⋑", 1, false)]),
13290 ("⋑⋑", &[("⋑⋑", 2, false)]),
13291 (
13292 "原理，进而",
13293 &[
13294 ("原", 1, false),
13295 ("理，", 2, false),
13296 ("进", 1, false),
13297 ("而", 1, false),
13298 ],
13299 ),
13300 (
13301 "hello world",
13302 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13303 ),
13304 (
13305 "hello, world",
13306 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13307 ),
13308 (
13309 " hello world",
13310 &[
13311 (" ", 1, true),
13312 ("hello", 5, false),
13313 (" ", 1, true),
13314 ("world", 5, false),
13315 ],
13316 ),
13317 (
13318 "这是什么 \n 钢笔",
13319 &[
13320 ("这", 1, false),
13321 ("是", 1, false),
13322 ("什", 1, false),
13323 ("么", 1, false),
13324 (" ", 1, true),
13325 ("钢", 1, false),
13326 ("笔", 1, false),
13327 ],
13328 ),
13329 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13330 ];
13331
13332 for (input, result) in tests {
13333 assert_eq!(
13334 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13335 result
13336 .iter()
13337 .copied()
13338 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13339 token,
13340 grapheme_len,
13341 is_whitespace,
13342 })
13343 .collect::<Vec<_>>()
13344 );
13345 }
13346}
13347
13348fn wrap_with_prefix(
13349 line_prefix: String,
13350 unwrapped_text: String,
13351 wrap_column: usize,
13352 tab_size: NonZeroU32,
13353) -> String {
13354 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13355 let mut wrapped_text = String::new();
13356 let mut current_line = line_prefix.clone();
13357
13358 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13359 let mut current_line_len = line_prefix_len;
13360 for WordBreakToken {
13361 token,
13362 grapheme_len,
13363 is_whitespace,
13364 } in tokenizer
13365 {
13366 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13367 wrapped_text.push_str(current_line.trim_end());
13368 wrapped_text.push('\n');
13369 current_line.truncate(line_prefix.len());
13370 current_line_len = line_prefix_len;
13371 if !is_whitespace {
13372 current_line.push_str(token);
13373 current_line_len += grapheme_len;
13374 }
13375 } else if !is_whitespace {
13376 current_line.push_str(token);
13377 current_line_len += grapheme_len;
13378 } else if current_line_len != line_prefix_len {
13379 current_line.push(' ');
13380 current_line_len += 1;
13381 }
13382 }
13383
13384 if !current_line.is_empty() {
13385 wrapped_text.push_str(¤t_line);
13386 }
13387 wrapped_text
13388}
13389
13390#[test]
13391fn test_wrap_with_prefix() {
13392 assert_eq!(
13393 wrap_with_prefix(
13394 "# ".to_string(),
13395 "abcdefg".to_string(),
13396 4,
13397 NonZeroU32::new(4).unwrap()
13398 ),
13399 "# abcdefg"
13400 );
13401 assert_eq!(
13402 wrap_with_prefix(
13403 "".to_string(),
13404 "\thello world".to_string(),
13405 8,
13406 NonZeroU32::new(4).unwrap()
13407 ),
13408 "hello\nworld"
13409 );
13410 assert_eq!(
13411 wrap_with_prefix(
13412 "// ".to_string(),
13413 "xx \nyy zz aa bb cc".to_string(),
13414 12,
13415 NonZeroU32::new(4).unwrap()
13416 ),
13417 "// xx yy zz\n// aa bb cc"
13418 );
13419 assert_eq!(
13420 wrap_with_prefix(
13421 String::new(),
13422 "这是什么 \n 钢笔".to_string(),
13423 3,
13424 NonZeroU32::new(4).unwrap()
13425 ),
13426 "这是什\n么 钢\n笔"
13427 );
13428}
13429
13430fn hunks_for_selections(
13431 snapshot: &EditorSnapshot,
13432 selections: &[Selection<Point>],
13433) -> Vec<MultiBufferDiffHunk> {
13434 hunks_for_ranges(
13435 selections.iter().map(|selection| selection.range()),
13436 snapshot,
13437 )
13438}
13439
13440pub fn hunks_for_ranges(
13441 ranges: impl Iterator<Item = Range<Point>>,
13442 snapshot: &EditorSnapshot,
13443) -> Vec<MultiBufferDiffHunk> {
13444 let mut hunks = Vec::new();
13445 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13446 HashMap::default();
13447 for query_range in ranges {
13448 let query_rows =
13449 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
13450 for hunk in snapshot.diff_map.diff_hunks_in_range(
13451 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
13452 &snapshot.buffer_snapshot,
13453 ) {
13454 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13455 // when the caret is just above or just below the deleted hunk.
13456 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13457 let related_to_selection = if allow_adjacent {
13458 hunk.row_range.overlaps(&query_rows)
13459 || hunk.row_range.start == query_rows.end
13460 || hunk.row_range.end == query_rows.start
13461 } else {
13462 hunk.row_range.overlaps(&query_rows)
13463 };
13464 if related_to_selection {
13465 if !processed_buffer_rows
13466 .entry(hunk.buffer_id)
13467 .or_default()
13468 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13469 {
13470 continue;
13471 }
13472 hunks.push(hunk);
13473 }
13474 }
13475 }
13476
13477 hunks
13478}
13479
13480pub trait CollaborationHub {
13481 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13482 fn user_participant_indices<'a>(
13483 &self,
13484 cx: &'a AppContext,
13485 ) -> &'a HashMap<u64, ParticipantIndex>;
13486 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13487}
13488
13489impl CollaborationHub for Model<Project> {
13490 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13491 self.read(cx).collaborators()
13492 }
13493
13494 fn user_participant_indices<'a>(
13495 &self,
13496 cx: &'a AppContext,
13497 ) -> &'a HashMap<u64, ParticipantIndex> {
13498 self.read(cx).user_store().read(cx).participant_indices()
13499 }
13500
13501 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13502 let this = self.read(cx);
13503 let user_ids = this.collaborators().values().map(|c| c.user_id);
13504 this.user_store().read_with(cx, |user_store, cx| {
13505 user_store.participant_names(user_ids, cx)
13506 })
13507 }
13508}
13509
13510pub trait SemanticsProvider {
13511 fn hover(
13512 &self,
13513 buffer: &Model<Buffer>,
13514 position: text::Anchor,
13515 cx: &mut AppContext,
13516 ) -> Option<Task<Vec<project::Hover>>>;
13517
13518 fn inlay_hints(
13519 &self,
13520 buffer_handle: Model<Buffer>,
13521 range: Range<text::Anchor>,
13522 cx: &mut AppContext,
13523 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13524
13525 fn resolve_inlay_hint(
13526 &self,
13527 hint: InlayHint,
13528 buffer_handle: Model<Buffer>,
13529 server_id: LanguageServerId,
13530 cx: &mut AppContext,
13531 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13532
13533 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13534
13535 fn document_highlights(
13536 &self,
13537 buffer: &Model<Buffer>,
13538 position: text::Anchor,
13539 cx: &mut AppContext,
13540 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13541
13542 fn definitions(
13543 &self,
13544 buffer: &Model<Buffer>,
13545 position: text::Anchor,
13546 kind: GotoDefinitionKind,
13547 cx: &mut AppContext,
13548 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13549
13550 fn range_for_rename(
13551 &self,
13552 buffer: &Model<Buffer>,
13553 position: text::Anchor,
13554 cx: &mut AppContext,
13555 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13556
13557 fn perform_rename(
13558 &self,
13559 buffer: &Model<Buffer>,
13560 position: text::Anchor,
13561 new_name: String,
13562 cx: &mut AppContext,
13563 ) -> Option<Task<Result<ProjectTransaction>>>;
13564}
13565
13566pub trait CompletionProvider {
13567 fn completions(
13568 &self,
13569 buffer: &Model<Buffer>,
13570 buffer_position: text::Anchor,
13571 trigger: CompletionContext,
13572 cx: &mut ViewContext<Editor>,
13573 ) -> Task<Result<Vec<Completion>>>;
13574
13575 fn resolve_completions(
13576 &self,
13577 buffer: Model<Buffer>,
13578 completion_indices: Vec<usize>,
13579 completions: Rc<RefCell<Box<[Completion]>>>,
13580 cx: &mut ViewContext<Editor>,
13581 ) -> Task<Result<bool>>;
13582
13583 fn apply_additional_edits_for_completion(
13584 &self,
13585 _buffer: Model<Buffer>,
13586 _completions: Rc<RefCell<Box<[Completion]>>>,
13587 _completion_index: usize,
13588 _push_to_history: bool,
13589 _cx: &mut ViewContext<Editor>,
13590 ) -> Task<Result<Option<language::Transaction>>> {
13591 Task::ready(Ok(None))
13592 }
13593
13594 fn is_completion_trigger(
13595 &self,
13596 buffer: &Model<Buffer>,
13597 position: language::Anchor,
13598 text: &str,
13599 trigger_in_words: bool,
13600 cx: &mut ViewContext<Editor>,
13601 ) -> bool;
13602
13603 fn sort_completions(&self) -> bool {
13604 true
13605 }
13606}
13607
13608pub trait CodeActionProvider {
13609 fn id(&self) -> Arc<str>;
13610
13611 fn code_actions(
13612 &self,
13613 buffer: &Model<Buffer>,
13614 range: Range<text::Anchor>,
13615 cx: &mut WindowContext,
13616 ) -> Task<Result<Vec<CodeAction>>>;
13617
13618 fn apply_code_action(
13619 &self,
13620 buffer_handle: Model<Buffer>,
13621 action: CodeAction,
13622 excerpt_id: ExcerptId,
13623 push_to_history: bool,
13624 cx: &mut WindowContext,
13625 ) -> Task<Result<ProjectTransaction>>;
13626}
13627
13628impl CodeActionProvider for Model<Project> {
13629 fn id(&self) -> Arc<str> {
13630 "project".into()
13631 }
13632
13633 fn code_actions(
13634 &self,
13635 buffer: &Model<Buffer>,
13636 range: Range<text::Anchor>,
13637 cx: &mut WindowContext,
13638 ) -> Task<Result<Vec<CodeAction>>> {
13639 self.update(cx, |project, cx| {
13640 project.code_actions(buffer, range, None, cx)
13641 })
13642 }
13643
13644 fn apply_code_action(
13645 &self,
13646 buffer_handle: Model<Buffer>,
13647 action: CodeAction,
13648 _excerpt_id: ExcerptId,
13649 push_to_history: bool,
13650 cx: &mut WindowContext,
13651 ) -> Task<Result<ProjectTransaction>> {
13652 self.update(cx, |project, cx| {
13653 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13654 })
13655 }
13656}
13657
13658fn snippet_completions(
13659 project: &Project,
13660 buffer: &Model<Buffer>,
13661 buffer_position: text::Anchor,
13662 cx: &mut AppContext,
13663) -> Task<Result<Vec<Completion>>> {
13664 let language = buffer.read(cx).language_at(buffer_position);
13665 let language_name = language.as_ref().map(|language| language.lsp_id());
13666 let snippet_store = project.snippets().read(cx);
13667 let snippets = snippet_store.snippets_for(language_name, cx);
13668
13669 if snippets.is_empty() {
13670 return Task::ready(Ok(vec![]));
13671 }
13672 let snapshot = buffer.read(cx).text_snapshot();
13673 let chars: String = snapshot
13674 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13675 .collect();
13676
13677 let scope = language.map(|language| language.default_scope());
13678 let executor = cx.background_executor().clone();
13679
13680 cx.background_executor().spawn(async move {
13681 let classifier = CharClassifier::new(scope).for_completion(true);
13682 let mut last_word = chars
13683 .chars()
13684 .take_while(|c| classifier.is_word(*c))
13685 .collect::<String>();
13686 last_word = last_word.chars().rev().collect();
13687
13688 if last_word.is_empty() {
13689 return Ok(vec![]);
13690 }
13691
13692 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13693 let to_lsp = |point: &text::Anchor| {
13694 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13695 point_to_lsp(end)
13696 };
13697 let lsp_end = to_lsp(&buffer_position);
13698
13699 let candidates = snippets
13700 .iter()
13701 .enumerate()
13702 .flat_map(|(ix, snippet)| {
13703 snippet
13704 .prefix
13705 .iter()
13706 .map(move |prefix| StringMatchCandidate::new(ix, &prefix))
13707 })
13708 .collect::<Vec<StringMatchCandidate>>();
13709
13710 let mut matches = fuzzy::match_strings(
13711 &candidates,
13712 &last_word,
13713 last_word.chars().any(|c| c.is_uppercase()),
13714 100,
13715 &Default::default(),
13716 executor,
13717 )
13718 .await;
13719
13720 // Remove all candidates where the query's start does not match the start of any word in the candidate
13721 if let Some(query_start) = last_word.chars().next() {
13722 matches.retain(|string_match| {
13723 split_words(&string_match.string).any(|word| {
13724 // Check that the first codepoint of the word as lowercase matches the first
13725 // codepoint of the query as lowercase
13726 word.chars()
13727 .flat_map(|codepoint| codepoint.to_lowercase())
13728 .zip(query_start.to_lowercase())
13729 .all(|(word_cp, query_cp)| word_cp == query_cp)
13730 })
13731 });
13732 }
13733
13734 let matched_strings = matches
13735 .into_iter()
13736 .map(|m| m.string)
13737 .collect::<HashSet<_>>();
13738
13739 let result: Vec<Completion> = snippets
13740 .into_iter()
13741 .filter_map(|snippet| {
13742 let matching_prefix = snippet
13743 .prefix
13744 .iter()
13745 .find(|prefix| matched_strings.contains(*prefix))?;
13746 let start = as_offset - last_word.len();
13747 let start = snapshot.anchor_before(start);
13748 let range = start..buffer_position;
13749 let lsp_start = to_lsp(&start);
13750 let lsp_range = lsp::Range {
13751 start: lsp_start,
13752 end: lsp_end,
13753 };
13754 Some(Completion {
13755 old_range: range,
13756 new_text: snippet.body.clone(),
13757 resolved: false,
13758 label: CodeLabel {
13759 text: matching_prefix.clone(),
13760 runs: vec![],
13761 filter_range: 0..matching_prefix.len(),
13762 },
13763 server_id: LanguageServerId(usize::MAX),
13764 documentation: snippet.description.clone().map(Documentation::SingleLine),
13765 lsp_completion: lsp::CompletionItem {
13766 label: snippet.prefix.first().unwrap().clone(),
13767 kind: Some(CompletionItemKind::SNIPPET),
13768 label_details: snippet.description.as_ref().map(|description| {
13769 lsp::CompletionItemLabelDetails {
13770 detail: Some(description.clone()),
13771 description: None,
13772 }
13773 }),
13774 insert_text_format: Some(InsertTextFormat::SNIPPET),
13775 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13776 lsp::InsertReplaceEdit {
13777 new_text: snippet.body.clone(),
13778 insert: lsp_range,
13779 replace: lsp_range,
13780 },
13781 )),
13782 filter_text: Some(snippet.body.clone()),
13783 sort_text: Some(char::MAX.to_string()),
13784 ..Default::default()
13785 },
13786 confirm: None,
13787 })
13788 })
13789 .collect();
13790
13791 Ok(result)
13792 })
13793}
13794
13795impl CompletionProvider for Model<Project> {
13796 fn completions(
13797 &self,
13798 buffer: &Model<Buffer>,
13799 buffer_position: text::Anchor,
13800 options: CompletionContext,
13801 cx: &mut ViewContext<Editor>,
13802 ) -> Task<Result<Vec<Completion>>> {
13803 self.update(cx, |project, cx| {
13804 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13805 let project_completions = project.completions(buffer, buffer_position, options, cx);
13806 cx.background_executor().spawn(async move {
13807 let mut completions = project_completions.await?;
13808 let snippets_completions = snippets.await?;
13809 completions.extend(snippets_completions);
13810 Ok(completions)
13811 })
13812 })
13813 }
13814
13815 fn resolve_completions(
13816 &self,
13817 buffer: Model<Buffer>,
13818 completion_indices: Vec<usize>,
13819 completions: Rc<RefCell<Box<[Completion]>>>,
13820 cx: &mut ViewContext<Editor>,
13821 ) -> Task<Result<bool>> {
13822 self.update(cx, |project, cx| {
13823 project.lsp_store().update(cx, |lsp_store, cx| {
13824 lsp_store.resolve_completions(buffer, completion_indices, completions, cx)
13825 })
13826 })
13827 }
13828
13829 fn apply_additional_edits_for_completion(
13830 &self,
13831 buffer: Model<Buffer>,
13832 completions: Rc<RefCell<Box<[Completion]>>>,
13833 completion_index: usize,
13834 push_to_history: bool,
13835 cx: &mut ViewContext<Editor>,
13836 ) -> Task<Result<Option<language::Transaction>>> {
13837 self.update(cx, |project, cx| {
13838 project.lsp_store().update(cx, |lsp_store, cx| {
13839 lsp_store.apply_additional_edits_for_completion(
13840 buffer,
13841 completions,
13842 completion_index,
13843 push_to_history,
13844 cx,
13845 )
13846 })
13847 })
13848 }
13849
13850 fn is_completion_trigger(
13851 &self,
13852 buffer: &Model<Buffer>,
13853 position: language::Anchor,
13854 text: &str,
13855 trigger_in_words: bool,
13856 cx: &mut ViewContext<Editor>,
13857 ) -> bool {
13858 let mut chars = text.chars();
13859 let char = if let Some(char) = chars.next() {
13860 char
13861 } else {
13862 return false;
13863 };
13864 if chars.next().is_some() {
13865 return false;
13866 }
13867
13868 let buffer = buffer.read(cx);
13869 let snapshot = buffer.snapshot();
13870 if !snapshot.settings_at(position, cx).show_completions_on_input {
13871 return false;
13872 }
13873 let classifier = snapshot.char_classifier_at(position).for_completion(true);
13874 if trigger_in_words && classifier.is_word(char) {
13875 return true;
13876 }
13877
13878 buffer.completion_triggers().contains(text)
13879 }
13880}
13881
13882impl SemanticsProvider for Model<Project> {
13883 fn hover(
13884 &self,
13885 buffer: &Model<Buffer>,
13886 position: text::Anchor,
13887 cx: &mut AppContext,
13888 ) -> Option<Task<Vec<project::Hover>>> {
13889 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13890 }
13891
13892 fn document_highlights(
13893 &self,
13894 buffer: &Model<Buffer>,
13895 position: text::Anchor,
13896 cx: &mut AppContext,
13897 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13898 Some(self.update(cx, |project, cx| {
13899 project.document_highlights(buffer, position, cx)
13900 }))
13901 }
13902
13903 fn definitions(
13904 &self,
13905 buffer: &Model<Buffer>,
13906 position: text::Anchor,
13907 kind: GotoDefinitionKind,
13908 cx: &mut AppContext,
13909 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13910 Some(self.update(cx, |project, cx| match kind {
13911 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13912 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13913 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13914 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13915 }))
13916 }
13917
13918 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13919 // TODO: make this work for remote projects
13920 self.read(cx)
13921 .language_servers_for_local_buffer(buffer.read(cx), cx)
13922 .any(
13923 |(_, server)| match server.capabilities().inlay_hint_provider {
13924 Some(lsp::OneOf::Left(enabled)) => enabled,
13925 Some(lsp::OneOf::Right(_)) => true,
13926 None => false,
13927 },
13928 )
13929 }
13930
13931 fn inlay_hints(
13932 &self,
13933 buffer_handle: Model<Buffer>,
13934 range: Range<text::Anchor>,
13935 cx: &mut AppContext,
13936 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13937 Some(self.update(cx, |project, cx| {
13938 project.inlay_hints(buffer_handle, range, cx)
13939 }))
13940 }
13941
13942 fn resolve_inlay_hint(
13943 &self,
13944 hint: InlayHint,
13945 buffer_handle: Model<Buffer>,
13946 server_id: LanguageServerId,
13947 cx: &mut AppContext,
13948 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13949 Some(self.update(cx, |project, cx| {
13950 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13951 }))
13952 }
13953
13954 fn range_for_rename(
13955 &self,
13956 buffer: &Model<Buffer>,
13957 position: text::Anchor,
13958 cx: &mut AppContext,
13959 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13960 Some(self.update(cx, |project, cx| {
13961 let buffer = buffer.clone();
13962 let task = project.prepare_rename(buffer.clone(), position, cx);
13963 cx.spawn(|_, mut cx| async move {
13964 Ok(match task.await? {
13965 PrepareRenameResponse::Success(range) => Some(range),
13966 PrepareRenameResponse::InvalidPosition => None,
13967 PrepareRenameResponse::OnlyUnpreparedRenameSupported => {
13968 // Fallback on using TreeSitter info to determine identifier range
13969 buffer.update(&mut cx, |buffer, _| {
13970 let snapshot = buffer.snapshot();
13971 let (range, kind) = snapshot.surrounding_word(position);
13972 if kind != Some(CharKind::Word) {
13973 return None;
13974 }
13975 Some(
13976 snapshot.anchor_before(range.start)
13977 ..snapshot.anchor_after(range.end),
13978 )
13979 })?
13980 }
13981 })
13982 })
13983 }))
13984 }
13985
13986 fn perform_rename(
13987 &self,
13988 buffer: &Model<Buffer>,
13989 position: text::Anchor,
13990 new_name: String,
13991 cx: &mut AppContext,
13992 ) -> Option<Task<Result<ProjectTransaction>>> {
13993 Some(self.update(cx, |project, cx| {
13994 project.perform_rename(buffer.clone(), position, new_name, cx)
13995 }))
13996 }
13997}
13998
13999fn inlay_hint_settings(
14000 location: Anchor,
14001 snapshot: &MultiBufferSnapshot,
14002 cx: &mut ViewContext<Editor>,
14003) -> InlayHintSettings {
14004 let file = snapshot.file_at(location);
14005 let language = snapshot.language_at(location).map(|l| l.name());
14006 language_settings(language, file, cx).inlay_hints
14007}
14008
14009fn consume_contiguous_rows(
14010 contiguous_row_selections: &mut Vec<Selection<Point>>,
14011 selection: &Selection<Point>,
14012 display_map: &DisplaySnapshot,
14013 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
14014) -> (MultiBufferRow, MultiBufferRow) {
14015 contiguous_row_selections.push(selection.clone());
14016 let start_row = MultiBufferRow(selection.start.row);
14017 let mut end_row = ending_row(selection, display_map);
14018
14019 while let Some(next_selection) = selections.peek() {
14020 if next_selection.start.row <= end_row.0 {
14021 end_row = ending_row(next_selection, display_map);
14022 contiguous_row_selections.push(selections.next().unwrap().clone());
14023 } else {
14024 break;
14025 }
14026 }
14027 (start_row, end_row)
14028}
14029
14030fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
14031 if next_selection.end.column > 0 || next_selection.is_empty() {
14032 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
14033 } else {
14034 MultiBufferRow(next_selection.end.row)
14035 }
14036}
14037
14038impl EditorSnapshot {
14039 pub fn remote_selections_in_range<'a>(
14040 &'a self,
14041 range: &'a Range<Anchor>,
14042 collaboration_hub: &dyn CollaborationHub,
14043 cx: &'a AppContext,
14044 ) -> impl 'a + Iterator<Item = RemoteSelection> {
14045 let participant_names = collaboration_hub.user_names(cx);
14046 let participant_indices = collaboration_hub.user_participant_indices(cx);
14047 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
14048 let collaborators_by_replica_id = collaborators_by_peer_id
14049 .iter()
14050 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
14051 .collect::<HashMap<_, _>>();
14052 self.buffer_snapshot
14053 .selections_in_range(range, false)
14054 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
14055 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
14056 let participant_index = participant_indices.get(&collaborator.user_id).copied();
14057 let user_name = participant_names.get(&collaborator.user_id).cloned();
14058 Some(RemoteSelection {
14059 replica_id,
14060 selection,
14061 cursor_shape,
14062 line_mode,
14063 participant_index,
14064 peer_id: collaborator.peer_id,
14065 user_name,
14066 })
14067 })
14068 }
14069
14070 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
14071 self.display_snapshot.buffer_snapshot.language_at(position)
14072 }
14073
14074 pub fn is_focused(&self) -> bool {
14075 self.is_focused
14076 }
14077
14078 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
14079 self.placeholder_text.as_ref()
14080 }
14081
14082 pub fn scroll_position(&self) -> gpui::Point<f32> {
14083 self.scroll_anchor.scroll_position(&self.display_snapshot)
14084 }
14085
14086 fn gutter_dimensions(
14087 &self,
14088 font_id: FontId,
14089 font_size: Pixels,
14090 em_width: Pixels,
14091 em_advance: Pixels,
14092 max_line_number_width: Pixels,
14093 cx: &AppContext,
14094 ) -> GutterDimensions {
14095 if !self.show_gutter {
14096 return GutterDimensions::default();
14097 }
14098 let descent = cx.text_system().descent(font_id, font_size);
14099
14100 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
14101 matches!(
14102 ProjectSettings::get_global(cx).git.git_gutter,
14103 Some(GitGutterSetting::TrackedFiles)
14104 )
14105 });
14106 let gutter_settings = EditorSettings::get_global(cx).gutter;
14107 let show_line_numbers = self
14108 .show_line_numbers
14109 .unwrap_or(gutter_settings.line_numbers);
14110 let line_gutter_width = if show_line_numbers {
14111 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
14112 let min_width_for_number_on_gutter = em_advance * 4.0;
14113 max_line_number_width.max(min_width_for_number_on_gutter)
14114 } else {
14115 0.0.into()
14116 };
14117
14118 let show_code_actions = self
14119 .show_code_actions
14120 .unwrap_or(gutter_settings.code_actions);
14121
14122 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
14123
14124 let git_blame_entries_width =
14125 self.git_blame_gutter_max_author_length
14126 .map(|max_author_length| {
14127 // Length of the author name, but also space for the commit hash,
14128 // the spacing and the timestamp.
14129 let max_char_count = max_author_length
14130 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
14131 + 7 // length of commit sha
14132 + 14 // length of max relative timestamp ("60 minutes ago")
14133 + 4; // gaps and margins
14134
14135 em_advance * max_char_count
14136 });
14137
14138 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
14139 left_padding += if show_code_actions || show_runnables {
14140 em_width * 3.0
14141 } else if show_git_gutter && show_line_numbers {
14142 em_width * 2.0
14143 } else if show_git_gutter || show_line_numbers {
14144 em_width
14145 } else {
14146 px(0.)
14147 };
14148
14149 let right_padding = if gutter_settings.folds && show_line_numbers {
14150 em_width * 4.0
14151 } else if gutter_settings.folds {
14152 em_width * 3.0
14153 } else if show_line_numbers {
14154 em_width
14155 } else {
14156 px(0.)
14157 };
14158
14159 GutterDimensions {
14160 left_padding,
14161 right_padding,
14162 width: line_gutter_width + left_padding + right_padding,
14163 margin: -descent,
14164 git_blame_entries_width,
14165 }
14166 }
14167
14168 pub fn render_crease_toggle(
14169 &self,
14170 buffer_row: MultiBufferRow,
14171 row_contains_cursor: bool,
14172 editor: View<Editor>,
14173 cx: &mut WindowContext,
14174 ) -> Option<AnyElement> {
14175 let folded = self.is_line_folded(buffer_row);
14176 let mut is_foldable = false;
14177
14178 if let Some(crease) = self
14179 .crease_snapshot
14180 .query_row(buffer_row, &self.buffer_snapshot)
14181 {
14182 is_foldable = true;
14183 match crease {
14184 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
14185 if let Some(render_toggle) = render_toggle {
14186 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14187 if folded {
14188 editor.update(cx, |editor, cx| {
14189 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14190 });
14191 } else {
14192 editor.update(cx, |editor, cx| {
14193 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14194 });
14195 }
14196 });
14197 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14198 }
14199 }
14200 }
14201 }
14202
14203 is_foldable |= self.starts_indent(buffer_row);
14204
14205 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14206 Some(
14207 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14208 .toggle_state(folded)
14209 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14210 if folded {
14211 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14212 } else {
14213 this.fold_at(&FoldAt { buffer_row }, cx);
14214 }
14215 }))
14216 .into_any_element(),
14217 )
14218 } else {
14219 None
14220 }
14221 }
14222
14223 pub fn render_crease_trailer(
14224 &self,
14225 buffer_row: MultiBufferRow,
14226 cx: &mut WindowContext,
14227 ) -> Option<AnyElement> {
14228 let folded = self.is_line_folded(buffer_row);
14229 if let Crease::Inline { render_trailer, .. } = self
14230 .crease_snapshot
14231 .query_row(buffer_row, &self.buffer_snapshot)?
14232 {
14233 let render_trailer = render_trailer.as_ref()?;
14234 Some(render_trailer(buffer_row, folded, cx))
14235 } else {
14236 None
14237 }
14238 }
14239}
14240
14241impl Deref for EditorSnapshot {
14242 type Target = DisplaySnapshot;
14243
14244 fn deref(&self) -> &Self::Target {
14245 &self.display_snapshot
14246 }
14247}
14248
14249#[derive(Clone, Debug, PartialEq, Eq)]
14250pub enum EditorEvent {
14251 InputIgnored {
14252 text: Arc<str>,
14253 },
14254 InputHandled {
14255 utf16_range_to_replace: Option<Range<isize>>,
14256 text: Arc<str>,
14257 },
14258 ExcerptsAdded {
14259 buffer: Model<Buffer>,
14260 predecessor: ExcerptId,
14261 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14262 },
14263 ExcerptsRemoved {
14264 ids: Vec<ExcerptId>,
14265 },
14266 BufferFoldToggled {
14267 ids: Vec<ExcerptId>,
14268 folded: bool,
14269 },
14270 ExcerptsEdited {
14271 ids: Vec<ExcerptId>,
14272 },
14273 ExcerptsExpanded {
14274 ids: Vec<ExcerptId>,
14275 },
14276 BufferEdited,
14277 Edited {
14278 transaction_id: clock::Lamport,
14279 },
14280 Reparsed(BufferId),
14281 Focused,
14282 FocusedIn,
14283 Blurred,
14284 DirtyChanged,
14285 Saved,
14286 TitleChanged,
14287 DiffBaseChanged,
14288 SelectionsChanged {
14289 local: bool,
14290 },
14291 ScrollPositionChanged {
14292 local: bool,
14293 autoscroll: bool,
14294 },
14295 Closed,
14296 TransactionUndone {
14297 transaction_id: clock::Lamport,
14298 },
14299 TransactionBegun {
14300 transaction_id: clock::Lamport,
14301 },
14302 Reloaded,
14303 CursorShapeChanged,
14304}
14305
14306impl EventEmitter<EditorEvent> for Editor {}
14307
14308impl FocusableView for Editor {
14309 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14310 self.focus_handle.clone()
14311 }
14312}
14313
14314impl Render for Editor {
14315 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14316 let settings = ThemeSettings::get_global(cx);
14317
14318 let mut text_style = match self.mode {
14319 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14320 color: cx.theme().colors().editor_foreground,
14321 font_family: settings.ui_font.family.clone(),
14322 font_features: settings.ui_font.features.clone(),
14323 font_fallbacks: settings.ui_font.fallbacks.clone(),
14324 font_size: rems(0.875).into(),
14325 font_weight: settings.ui_font.weight,
14326 line_height: relative(settings.buffer_line_height.value()),
14327 ..Default::default()
14328 },
14329 EditorMode::Full => TextStyle {
14330 color: cx.theme().colors().editor_foreground,
14331 font_family: settings.buffer_font.family.clone(),
14332 font_features: settings.buffer_font.features.clone(),
14333 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14334 font_size: settings.buffer_font_size(cx).into(),
14335 font_weight: settings.buffer_font.weight,
14336 line_height: relative(settings.buffer_line_height.value()),
14337 ..Default::default()
14338 },
14339 };
14340 if let Some(text_style_refinement) = &self.text_style_refinement {
14341 text_style.refine(text_style_refinement)
14342 }
14343
14344 let background = match self.mode {
14345 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14346 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14347 EditorMode::Full => cx.theme().colors().editor_background,
14348 };
14349
14350 EditorElement::new(
14351 cx.view(),
14352 EditorStyle {
14353 background,
14354 local_player: cx.theme().players().local(),
14355 text: text_style,
14356 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14357 syntax: cx.theme().syntax().clone(),
14358 status: cx.theme().status().clone(),
14359 inlay_hints_style: make_inlay_hints_style(cx),
14360 inline_completion_styles: make_suggestion_styles(cx),
14361 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14362 },
14363 )
14364 }
14365}
14366
14367impl ViewInputHandler for Editor {
14368 fn text_for_range(
14369 &mut self,
14370 range_utf16: Range<usize>,
14371 adjusted_range: &mut Option<Range<usize>>,
14372 cx: &mut ViewContext<Self>,
14373 ) -> Option<String> {
14374 let snapshot = self.buffer.read(cx).read(cx);
14375 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14376 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14377 if (start.0..end.0) != range_utf16 {
14378 adjusted_range.replace(start.0..end.0);
14379 }
14380 Some(snapshot.text_for_range(start..end).collect())
14381 }
14382
14383 fn selected_text_range(
14384 &mut self,
14385 ignore_disabled_input: bool,
14386 cx: &mut ViewContext<Self>,
14387 ) -> Option<UTF16Selection> {
14388 // Prevent the IME menu from appearing when holding down an alphabetic key
14389 // while input is disabled.
14390 if !ignore_disabled_input && !self.input_enabled {
14391 return None;
14392 }
14393
14394 let selection = self.selections.newest::<OffsetUtf16>(cx);
14395 let range = selection.range();
14396
14397 Some(UTF16Selection {
14398 range: range.start.0..range.end.0,
14399 reversed: selection.reversed,
14400 })
14401 }
14402
14403 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14404 let snapshot = self.buffer.read(cx).read(cx);
14405 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14406 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14407 }
14408
14409 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14410 self.clear_highlights::<InputComposition>(cx);
14411 self.ime_transaction.take();
14412 }
14413
14414 fn replace_text_in_range(
14415 &mut self,
14416 range_utf16: Option<Range<usize>>,
14417 text: &str,
14418 cx: &mut ViewContext<Self>,
14419 ) {
14420 if !self.input_enabled {
14421 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14422 return;
14423 }
14424
14425 self.transact(cx, |this, cx| {
14426 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14427 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14428 Some(this.selection_replacement_ranges(range_utf16, cx))
14429 } else {
14430 this.marked_text_ranges(cx)
14431 };
14432
14433 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14434 let newest_selection_id = this.selections.newest_anchor().id;
14435 this.selections
14436 .all::<OffsetUtf16>(cx)
14437 .iter()
14438 .zip(ranges_to_replace.iter())
14439 .find_map(|(selection, range)| {
14440 if selection.id == newest_selection_id {
14441 Some(
14442 (range.start.0 as isize - selection.head().0 as isize)
14443 ..(range.end.0 as isize - selection.head().0 as isize),
14444 )
14445 } else {
14446 None
14447 }
14448 })
14449 });
14450
14451 cx.emit(EditorEvent::InputHandled {
14452 utf16_range_to_replace: range_to_replace,
14453 text: text.into(),
14454 });
14455
14456 if let Some(new_selected_ranges) = new_selected_ranges {
14457 this.change_selections(None, cx, |selections| {
14458 selections.select_ranges(new_selected_ranges)
14459 });
14460 this.backspace(&Default::default(), cx);
14461 }
14462
14463 this.handle_input(text, cx);
14464 });
14465
14466 if let Some(transaction) = self.ime_transaction {
14467 self.buffer.update(cx, |buffer, cx| {
14468 buffer.group_until_transaction(transaction, cx);
14469 });
14470 }
14471
14472 self.unmark_text(cx);
14473 }
14474
14475 fn replace_and_mark_text_in_range(
14476 &mut self,
14477 range_utf16: Option<Range<usize>>,
14478 text: &str,
14479 new_selected_range_utf16: Option<Range<usize>>,
14480 cx: &mut ViewContext<Self>,
14481 ) {
14482 if !self.input_enabled {
14483 return;
14484 }
14485
14486 let transaction = self.transact(cx, |this, cx| {
14487 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14488 let snapshot = this.buffer.read(cx).read(cx);
14489 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14490 for marked_range in &mut marked_ranges {
14491 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14492 marked_range.start.0 += relative_range_utf16.start;
14493 marked_range.start =
14494 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14495 marked_range.end =
14496 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14497 }
14498 }
14499 Some(marked_ranges)
14500 } else if let Some(range_utf16) = range_utf16 {
14501 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14502 Some(this.selection_replacement_ranges(range_utf16, cx))
14503 } else {
14504 None
14505 };
14506
14507 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14508 let newest_selection_id = this.selections.newest_anchor().id;
14509 this.selections
14510 .all::<OffsetUtf16>(cx)
14511 .iter()
14512 .zip(ranges_to_replace.iter())
14513 .find_map(|(selection, range)| {
14514 if selection.id == newest_selection_id {
14515 Some(
14516 (range.start.0 as isize - selection.head().0 as isize)
14517 ..(range.end.0 as isize - selection.head().0 as isize),
14518 )
14519 } else {
14520 None
14521 }
14522 })
14523 });
14524
14525 cx.emit(EditorEvent::InputHandled {
14526 utf16_range_to_replace: range_to_replace,
14527 text: text.into(),
14528 });
14529
14530 if let Some(ranges) = ranges_to_replace {
14531 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14532 }
14533
14534 let marked_ranges = {
14535 let snapshot = this.buffer.read(cx).read(cx);
14536 this.selections
14537 .disjoint_anchors()
14538 .iter()
14539 .map(|selection| {
14540 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14541 })
14542 .collect::<Vec<_>>()
14543 };
14544
14545 if text.is_empty() {
14546 this.unmark_text(cx);
14547 } else {
14548 this.highlight_text::<InputComposition>(
14549 marked_ranges.clone(),
14550 HighlightStyle {
14551 underline: Some(UnderlineStyle {
14552 thickness: px(1.),
14553 color: None,
14554 wavy: false,
14555 }),
14556 ..Default::default()
14557 },
14558 cx,
14559 );
14560 }
14561
14562 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14563 let use_autoclose = this.use_autoclose;
14564 let use_auto_surround = this.use_auto_surround;
14565 this.set_use_autoclose(false);
14566 this.set_use_auto_surround(false);
14567 this.handle_input(text, cx);
14568 this.set_use_autoclose(use_autoclose);
14569 this.set_use_auto_surround(use_auto_surround);
14570
14571 if let Some(new_selected_range) = new_selected_range_utf16 {
14572 let snapshot = this.buffer.read(cx).read(cx);
14573 let new_selected_ranges = marked_ranges
14574 .into_iter()
14575 .map(|marked_range| {
14576 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14577 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14578 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14579 snapshot.clip_offset_utf16(new_start, Bias::Left)
14580 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14581 })
14582 .collect::<Vec<_>>();
14583
14584 drop(snapshot);
14585 this.change_selections(None, cx, |selections| {
14586 selections.select_ranges(new_selected_ranges)
14587 });
14588 }
14589 });
14590
14591 self.ime_transaction = self.ime_transaction.or(transaction);
14592 if let Some(transaction) = self.ime_transaction {
14593 self.buffer.update(cx, |buffer, cx| {
14594 buffer.group_until_transaction(transaction, cx);
14595 });
14596 }
14597
14598 if self.text_highlights::<InputComposition>(cx).is_none() {
14599 self.ime_transaction.take();
14600 }
14601 }
14602
14603 fn bounds_for_range(
14604 &mut self,
14605 range_utf16: Range<usize>,
14606 element_bounds: gpui::Bounds<Pixels>,
14607 cx: &mut ViewContext<Self>,
14608 ) -> Option<gpui::Bounds<Pixels>> {
14609 let text_layout_details = self.text_layout_details(cx);
14610 let gpui::Point {
14611 x: em_width,
14612 y: line_height,
14613 } = self.character_size(cx);
14614
14615 let snapshot = self.snapshot(cx);
14616 let scroll_position = snapshot.scroll_position();
14617 let scroll_left = scroll_position.x * em_width;
14618
14619 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14620 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14621 + self.gutter_dimensions.width
14622 + self.gutter_dimensions.margin;
14623 let y = line_height * (start.row().as_f32() - scroll_position.y);
14624
14625 Some(Bounds {
14626 origin: element_bounds.origin + point(x, y),
14627 size: size(em_width, line_height),
14628 })
14629 }
14630}
14631
14632trait SelectionExt {
14633 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14634 fn spanned_rows(
14635 &self,
14636 include_end_if_at_line_start: bool,
14637 map: &DisplaySnapshot,
14638 ) -> Range<MultiBufferRow>;
14639}
14640
14641impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14642 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14643 let start = self
14644 .start
14645 .to_point(&map.buffer_snapshot)
14646 .to_display_point(map);
14647 let end = self
14648 .end
14649 .to_point(&map.buffer_snapshot)
14650 .to_display_point(map);
14651 if self.reversed {
14652 end..start
14653 } else {
14654 start..end
14655 }
14656 }
14657
14658 fn spanned_rows(
14659 &self,
14660 include_end_if_at_line_start: bool,
14661 map: &DisplaySnapshot,
14662 ) -> Range<MultiBufferRow> {
14663 let start = self.start.to_point(&map.buffer_snapshot);
14664 let mut end = self.end.to_point(&map.buffer_snapshot);
14665 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14666 end.row -= 1;
14667 }
14668
14669 let buffer_start = map.prev_line_boundary(start).0;
14670 let buffer_end = map.next_line_boundary(end).0;
14671 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14672 }
14673}
14674
14675impl<T: InvalidationRegion> InvalidationStack<T> {
14676 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14677 where
14678 S: Clone + ToOffset,
14679 {
14680 while let Some(region) = self.last() {
14681 let all_selections_inside_invalidation_ranges =
14682 if selections.len() == region.ranges().len() {
14683 selections
14684 .iter()
14685 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14686 .all(|(selection, invalidation_range)| {
14687 let head = selection.head().to_offset(buffer);
14688 invalidation_range.start <= head && invalidation_range.end >= head
14689 })
14690 } else {
14691 false
14692 };
14693
14694 if all_selections_inside_invalidation_ranges {
14695 break;
14696 } else {
14697 self.pop();
14698 }
14699 }
14700 }
14701}
14702
14703impl<T> Default for InvalidationStack<T> {
14704 fn default() -> Self {
14705 Self(Default::default())
14706 }
14707}
14708
14709impl<T> Deref for InvalidationStack<T> {
14710 type Target = Vec<T>;
14711
14712 fn deref(&self) -> &Self::Target {
14713 &self.0
14714 }
14715}
14716
14717impl<T> DerefMut for InvalidationStack<T> {
14718 fn deref_mut(&mut self) -> &mut Self::Target {
14719 &mut self.0
14720 }
14721}
14722
14723impl InvalidationRegion for SnippetState {
14724 fn ranges(&self) -> &[Range<Anchor>] {
14725 &self.ranges[self.active_index]
14726 }
14727}
14728
14729pub fn diagnostic_block_renderer(
14730 diagnostic: Diagnostic,
14731 max_message_rows: Option<u8>,
14732 allow_closing: bool,
14733 _is_valid: bool,
14734) -> RenderBlock {
14735 let (text_without_backticks, code_ranges) =
14736 highlight_diagnostic_message(&diagnostic, max_message_rows);
14737
14738 Arc::new(move |cx: &mut BlockContext| {
14739 let group_id: SharedString = cx.block_id.to_string().into();
14740
14741 let mut text_style = cx.text_style().clone();
14742 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14743 let theme_settings = ThemeSettings::get_global(cx);
14744 text_style.font_family = theme_settings.buffer_font.family.clone();
14745 text_style.font_style = theme_settings.buffer_font.style;
14746 text_style.font_features = theme_settings.buffer_font.features.clone();
14747 text_style.font_weight = theme_settings.buffer_font.weight;
14748
14749 let multi_line_diagnostic = diagnostic.message.contains('\n');
14750
14751 let buttons = |diagnostic: &Diagnostic| {
14752 if multi_line_diagnostic {
14753 v_flex()
14754 } else {
14755 h_flex()
14756 }
14757 .when(allow_closing, |div| {
14758 div.children(diagnostic.is_primary.then(|| {
14759 IconButton::new("close-block", IconName::XCircle)
14760 .icon_color(Color::Muted)
14761 .size(ButtonSize::Compact)
14762 .style(ButtonStyle::Transparent)
14763 .visible_on_hover(group_id.clone())
14764 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14765 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14766 }))
14767 })
14768 .child(
14769 IconButton::new("copy-block", IconName::Copy)
14770 .icon_color(Color::Muted)
14771 .size(ButtonSize::Compact)
14772 .style(ButtonStyle::Transparent)
14773 .visible_on_hover(group_id.clone())
14774 .on_click({
14775 let message = diagnostic.message.clone();
14776 move |_click, cx| {
14777 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14778 }
14779 })
14780 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14781 )
14782 };
14783
14784 let icon_size = buttons(&diagnostic)
14785 .into_any_element()
14786 .layout_as_root(AvailableSpace::min_size(), cx);
14787
14788 h_flex()
14789 .id(cx.block_id)
14790 .group(group_id.clone())
14791 .relative()
14792 .size_full()
14793 .block_mouse_down()
14794 .pl(cx.gutter_dimensions.width)
14795 .w(cx.max_width - cx.gutter_dimensions.full_width())
14796 .child(
14797 div()
14798 .flex()
14799 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14800 .flex_shrink(),
14801 )
14802 .child(buttons(&diagnostic))
14803 .child(div().flex().flex_shrink_0().child(
14804 StyledText::new(text_without_backticks.clone()).with_highlights(
14805 &text_style,
14806 code_ranges.iter().map(|range| {
14807 (
14808 range.clone(),
14809 HighlightStyle {
14810 font_weight: Some(FontWeight::BOLD),
14811 ..Default::default()
14812 },
14813 )
14814 }),
14815 ),
14816 ))
14817 .into_any_element()
14818 })
14819}
14820
14821fn inline_completion_edit_text(
14822 editor_snapshot: &EditorSnapshot,
14823 edits: &Vec<(Range<Anchor>, String)>,
14824 include_deletions: bool,
14825 cx: &WindowContext,
14826) -> InlineCompletionText {
14827 let edit_start = edits
14828 .first()
14829 .unwrap()
14830 .0
14831 .start
14832 .to_display_point(editor_snapshot);
14833
14834 let mut text = String::new();
14835 let mut offset = DisplayPoint::new(edit_start.row(), 0).to_offset(editor_snapshot, Bias::Left);
14836 let mut highlights = Vec::new();
14837 for (old_range, new_text) in edits {
14838 let old_offset_range = old_range.to_offset(&editor_snapshot.buffer_snapshot);
14839 text.extend(
14840 editor_snapshot
14841 .buffer_snapshot
14842 .chunks(offset..old_offset_range.start, false)
14843 .map(|chunk| chunk.text),
14844 );
14845 offset = old_offset_range.end;
14846
14847 let start = text.len();
14848 let color = if include_deletions && new_text.is_empty() {
14849 text.extend(
14850 editor_snapshot
14851 .buffer_snapshot
14852 .chunks(old_offset_range.start..offset, false)
14853 .map(|chunk| chunk.text),
14854 );
14855 cx.theme().status().deleted_background
14856 } else {
14857 text.push_str(new_text);
14858 cx.theme().status().created_background
14859 };
14860 let end = text.len();
14861
14862 highlights.push((
14863 start..end,
14864 HighlightStyle {
14865 background_color: Some(color),
14866 ..Default::default()
14867 },
14868 ));
14869 }
14870
14871 let edit_end = edits
14872 .last()
14873 .unwrap()
14874 .0
14875 .end
14876 .to_display_point(editor_snapshot);
14877 let end_of_line = DisplayPoint::new(edit_end.row(), editor_snapshot.line_len(edit_end.row()))
14878 .to_offset(editor_snapshot, Bias::Right);
14879 text.extend(
14880 editor_snapshot
14881 .buffer_snapshot
14882 .chunks(offset..end_of_line, false)
14883 .map(|chunk| chunk.text),
14884 );
14885
14886 InlineCompletionText::Edit {
14887 text: text.into(),
14888 highlights,
14889 }
14890}
14891
14892pub fn highlight_diagnostic_message(
14893 diagnostic: &Diagnostic,
14894 mut max_message_rows: Option<u8>,
14895) -> (SharedString, Vec<Range<usize>>) {
14896 let mut text_without_backticks = String::new();
14897 let mut code_ranges = Vec::new();
14898
14899 if let Some(source) = &diagnostic.source {
14900 text_without_backticks.push_str(source);
14901 code_ranges.push(0..source.len());
14902 text_without_backticks.push_str(": ");
14903 }
14904
14905 let mut prev_offset = 0;
14906 let mut in_code_block = false;
14907 let has_row_limit = max_message_rows.is_some();
14908 let mut newline_indices = diagnostic
14909 .message
14910 .match_indices('\n')
14911 .filter(|_| has_row_limit)
14912 .map(|(ix, _)| ix)
14913 .fuse()
14914 .peekable();
14915
14916 for (quote_ix, _) in diagnostic
14917 .message
14918 .match_indices('`')
14919 .chain([(diagnostic.message.len(), "")])
14920 {
14921 let mut first_newline_ix = None;
14922 let mut last_newline_ix = None;
14923 while let Some(newline_ix) = newline_indices.peek() {
14924 if *newline_ix < quote_ix {
14925 if first_newline_ix.is_none() {
14926 first_newline_ix = Some(*newline_ix);
14927 }
14928 last_newline_ix = Some(*newline_ix);
14929
14930 if let Some(rows_left) = &mut max_message_rows {
14931 if *rows_left == 0 {
14932 break;
14933 } else {
14934 *rows_left -= 1;
14935 }
14936 }
14937 let _ = newline_indices.next();
14938 } else {
14939 break;
14940 }
14941 }
14942 let prev_len = text_without_backticks.len();
14943 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14944 text_without_backticks.push_str(new_text);
14945 if in_code_block {
14946 code_ranges.push(prev_len..text_without_backticks.len());
14947 }
14948 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14949 in_code_block = !in_code_block;
14950 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14951 text_without_backticks.push_str("...");
14952 break;
14953 }
14954 }
14955
14956 (text_without_backticks.into(), code_ranges)
14957}
14958
14959fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14960 match severity {
14961 DiagnosticSeverity::ERROR => colors.error,
14962 DiagnosticSeverity::WARNING => colors.warning,
14963 DiagnosticSeverity::INFORMATION => colors.info,
14964 DiagnosticSeverity::HINT => colors.info,
14965 _ => colors.ignored,
14966 }
14967}
14968
14969pub fn styled_runs_for_code_label<'a>(
14970 label: &'a CodeLabel,
14971 syntax_theme: &'a theme::SyntaxTheme,
14972) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14973 let fade_out = HighlightStyle {
14974 fade_out: Some(0.35),
14975 ..Default::default()
14976 };
14977
14978 let mut prev_end = label.filter_range.end;
14979 label
14980 .runs
14981 .iter()
14982 .enumerate()
14983 .flat_map(move |(ix, (range, highlight_id))| {
14984 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14985 style
14986 } else {
14987 return Default::default();
14988 };
14989 let mut muted_style = style;
14990 muted_style.highlight(fade_out);
14991
14992 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14993 if range.start >= label.filter_range.end {
14994 if range.start > prev_end {
14995 runs.push((prev_end..range.start, fade_out));
14996 }
14997 runs.push((range.clone(), muted_style));
14998 } else if range.end <= label.filter_range.end {
14999 runs.push((range.clone(), style));
15000 } else {
15001 runs.push((range.start..label.filter_range.end, style));
15002 runs.push((label.filter_range.end..range.end, muted_style));
15003 }
15004 prev_end = cmp::max(prev_end, range.end);
15005
15006 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
15007 runs.push((prev_end..label.text.len(), fade_out));
15008 }
15009
15010 runs
15011 })
15012}
15013
15014pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
15015 let mut prev_index = 0;
15016 let mut prev_codepoint: Option<char> = None;
15017 text.char_indices()
15018 .chain([(text.len(), '\0')])
15019 .filter_map(move |(index, codepoint)| {
15020 let prev_codepoint = prev_codepoint.replace(codepoint)?;
15021 let is_boundary = index == text.len()
15022 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
15023 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
15024 if is_boundary {
15025 let chunk = &text[prev_index..index];
15026 prev_index = index;
15027 Some(chunk)
15028 } else {
15029 None
15030 }
15031 })
15032}
15033
15034pub trait RangeToAnchorExt: Sized {
15035 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
15036
15037 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
15038 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
15039 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
15040 }
15041}
15042
15043impl<T: ToOffset> RangeToAnchorExt for Range<T> {
15044 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
15045 let start_offset = self.start.to_offset(snapshot);
15046 let end_offset = self.end.to_offset(snapshot);
15047 if start_offset == end_offset {
15048 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
15049 } else {
15050 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
15051 }
15052 }
15053}
15054
15055pub trait RowExt {
15056 fn as_f32(&self) -> f32;
15057
15058 fn next_row(&self) -> Self;
15059
15060 fn previous_row(&self) -> Self;
15061
15062 fn minus(&self, other: Self) -> u32;
15063}
15064
15065impl RowExt for DisplayRow {
15066 fn as_f32(&self) -> f32 {
15067 self.0 as f32
15068 }
15069
15070 fn next_row(&self) -> Self {
15071 Self(self.0 + 1)
15072 }
15073
15074 fn previous_row(&self) -> Self {
15075 Self(self.0.saturating_sub(1))
15076 }
15077
15078 fn minus(&self, other: Self) -> u32 {
15079 self.0 - other.0
15080 }
15081}
15082
15083impl RowExt for MultiBufferRow {
15084 fn as_f32(&self) -> f32 {
15085 self.0 as f32
15086 }
15087
15088 fn next_row(&self) -> Self {
15089 Self(self.0 + 1)
15090 }
15091
15092 fn previous_row(&self) -> Self {
15093 Self(self.0.saturating_sub(1))
15094 }
15095
15096 fn minus(&self, other: Self) -> u32 {
15097 self.0 - other.0
15098 }
15099}
15100
15101trait RowRangeExt {
15102 type Row;
15103
15104 fn len(&self) -> usize;
15105
15106 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
15107}
15108
15109impl RowRangeExt for Range<MultiBufferRow> {
15110 type Row = MultiBufferRow;
15111
15112 fn len(&self) -> usize {
15113 (self.end.0 - self.start.0) as usize
15114 }
15115
15116 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
15117 (self.start.0..self.end.0).map(MultiBufferRow)
15118 }
15119}
15120
15121impl RowRangeExt for Range<DisplayRow> {
15122 type Row = DisplayRow;
15123
15124 fn len(&self) -> usize {
15125 (self.end.0 - self.start.0) as usize
15126 }
15127
15128 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
15129 (self.start.0..self.end.0).map(DisplayRow)
15130 }
15131}
15132
15133fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
15134 if hunk.diff_base_byte_range.is_empty() {
15135 DiffHunkStatus::Added
15136 } else if hunk.row_range.is_empty() {
15137 DiffHunkStatus::Removed
15138 } else {
15139 DiffHunkStatus::Modified
15140 }
15141}
15142
15143/// If select range has more than one line, we
15144/// just point the cursor to range.start.
15145fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
15146 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
15147 range
15148 } else {
15149 range.start..range.start
15150 }
15151}
15152
15153pub struct KillRing(ClipboardItem);
15154impl Global for KillRing {}
15155
15156const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);