1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behavior.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18mod clangd_ext;
19mod code_context_menus;
20pub mod display_map;
21mod editor_settings;
22mod editor_settings_controls;
23mod element;
24mod git;
25mod highlight_matching_bracket;
26mod hover_links;
27mod hover_popover;
28mod hunk_diff;
29mod indent_guides;
30mod inlay_hint_cache;
31pub mod items;
32mod linked_editing_ranges;
33mod lsp_ext;
34mod mouse_context_menu;
35pub mod movement;
36mod persistence;
37mod proposed_changes_editor;
38mod rust_analyzer_ext;
39pub mod scroll;
40mod selections_collection;
41pub mod tasks;
42
43#[cfg(test)]
44mod editor_tests;
45#[cfg(test)]
46mod inline_completion_tests;
47mod signature_help;
48#[cfg(any(test, feature = "test-support"))]
49pub mod test;
50
51use ::git::diff::DiffHunkStatus;
52pub(crate) use actions::*;
53pub use actions::{OpenExcerpts, OpenExcerptsSplit};
54use aho_corasick::AhoCorasick;
55use anyhow::{anyhow, Context as _, Result};
56use blink_manager::BlinkManager;
57use client::{Collaborator, ParticipantIndex};
58use clock::ReplicaId;
59use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
60use convert_case::{Case, Casing};
61use display_map::*;
62pub use display_map::{DisplayPoint, FoldPlaceholder};
63pub use editor_settings::{
64 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
65};
66pub use editor_settings_controls::*;
67use element::LineWithInvisibles;
68pub use element::{
69 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
70};
71use futures::{future, FutureExt};
72use fuzzy::StringMatchCandidate;
73
74use code_context_menus::{
75 AvailableCodeAction, CodeActionContents, CodeActionsItem, CodeActionsMenu, CodeContextMenu,
76 CompletionEntry, CompletionsMenu, ContextMenuOrigin,
77};
78use git::blame::GitBlame;
79use gpui::{
80 div, impl_actions, point, prelude::*, px, relative, size, Action, AnyElement, AppContext,
81 AsyncWindowContext, AvailableSpace, Bounds, ClipboardEntry, ClipboardItem, Context,
82 DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent, FocusableView, FontId,
83 FontWeight, Global, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, ModelContext,
84 MouseButton, PaintQuad, ParentElement, Pixels, Render, SharedString, Size, Styled, StyledText,
85 Subscription, Task, TextStyle, TextStyleRefinement, UTF16Selection, UnderlineStyle,
86 UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle,
87 WeakView, WindowContext,
88};
89use highlight_matching_bracket::refresh_matching_bracket_highlights;
90use hover_popover::{hide_hover, HoverState};
91pub(crate) use hunk_diff::HoveredHunk;
92use hunk_diff::{diff_hunk_to_display, DiffMap, DiffMapSnapshot};
93use indent_guides::ActiveIndentGuidesState;
94use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
95pub use inline_completion::Direction;
96use inline_completion::{InlineCompletionProvider, InlineCompletionProviderHandle};
97pub use items::MAX_TAB_TITLE_LEN;
98use itertools::Itertools;
99use language::{
100 language_settings::{self, all_language_settings, language_settings, InlayHintSettings},
101 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
102 CursorShape, Diagnostic, DiagnosticEntry, Documentation, IndentKind, IndentSize, Language,
103 OffsetRangeExt, Point, Selection, SelectionGoal, TransactionId,
104};
105use language::{point_to_lsp, BufferRow, CharClassifier, Runnable, RunnableRange};
106use linked_editing_ranges::refresh_linked_ranges;
107use mouse_context_menu::MouseContextMenu;
108pub use proposed_changes_editor::{
109 ProposedChangeLocation, ProposedChangesEditor, ProposedChangesEditorToolbar,
110};
111use similar::{ChangeTag, TextDiff};
112use std::iter::Peekable;
113use task::{ResolvedTask, TaskTemplate, TaskVariables};
114
115use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
116pub use lsp::CompletionContext;
117use lsp::{
118 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
119 LanguageServerId, LanguageServerName,
120};
121
122use movement::TextLayoutDetails;
123pub use multi_buffer::{
124 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
125 ToPoint,
126};
127use multi_buffer::{
128 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
129};
130use project::{
131 buffer_store::BufferChangeSet,
132 lsp_store::{FormatTarget, FormatTrigger, OpenLspBufferHandle},
133 project_settings::{GitGutterSetting, ProjectSettings},
134 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Location, LocationLink,
135 LspStore, Project, ProjectItem, ProjectTransaction, TaskSourceKind,
136};
137use rand::prelude::*;
138use rpc::{proto::*, ErrorExt};
139use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
140use selections_collection::{
141 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
142};
143use serde::{Deserialize, Serialize};
144use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
145use smallvec::SmallVec;
146use snippet::Snippet;
147use std::{
148 any::TypeId,
149 borrow::Cow,
150 cell::RefCell,
151 cmp::{self, Ordering, Reverse},
152 mem,
153 num::NonZeroU32,
154 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
155 path::{Path, PathBuf},
156 rc::Rc,
157 sync::Arc,
158 time::{Duration, Instant},
159};
160pub use sum_tree::Bias;
161use sum_tree::TreeMap;
162use text::{BufferId, OffsetUtf16, Rope};
163use theme::{
164 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
165 ThemeColors, ThemeSettings,
166};
167use ui::{
168 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
169 PopoverMenuHandle, Tooltip,
170};
171use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
172use workspace::item::{ItemHandle, PreviewTabsSettings};
173use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
174use workspace::{
175 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
176};
177use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
178
179use crate::hover_links::{find_url, find_url_from_range};
180use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
181
182pub const FILE_HEADER_HEIGHT: u32 = 2;
183pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
184pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
185pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
186const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
187const MAX_LINE_LEN: usize = 1024;
188const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
189const MAX_SELECTION_HISTORY_LEN: usize = 1024;
190pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
191#[doc(hidden)]
192pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
193
194pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
195pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
196
197pub fn render_parsed_markdown(
198 element_id: impl Into<ElementId>,
199 parsed: &language::ParsedMarkdown,
200 editor_style: &EditorStyle,
201 workspace: Option<WeakView<Workspace>>,
202 cx: &mut WindowContext,
203) -> InteractiveText {
204 let code_span_background_color = cx
205 .theme()
206 .colors()
207 .editor_document_highlight_read_background;
208
209 let highlights = gpui::combine_highlights(
210 parsed.highlights.iter().filter_map(|(range, highlight)| {
211 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
212 Some((range.clone(), highlight))
213 }),
214 parsed
215 .regions
216 .iter()
217 .zip(&parsed.region_ranges)
218 .filter_map(|(region, range)| {
219 if region.code {
220 Some((
221 range.clone(),
222 HighlightStyle {
223 background_color: Some(code_span_background_color),
224 ..Default::default()
225 },
226 ))
227 } else {
228 None
229 }
230 }),
231 );
232
233 let mut links = Vec::new();
234 let mut link_ranges = Vec::new();
235 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
236 if let Some(link) = region.link.clone() {
237 links.push(link);
238 link_ranges.push(range.clone());
239 }
240 }
241
242 InteractiveText::new(
243 element_id,
244 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
245 )
246 .on_click(link_ranges, move |clicked_range_ix, cx| {
247 match &links[clicked_range_ix] {
248 markdown::Link::Web { url } => cx.open_url(url),
249 markdown::Link::Path { path } => {
250 if let Some(workspace) = &workspace {
251 _ = workspace.update(cx, |workspace, cx| {
252 workspace.open_abs_path(path.clone(), false, cx).detach();
253 });
254 }
255 }
256 }
257 })
258}
259
260#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
261pub enum InlayId {
262 InlineCompletion(usize),
263 Hint(usize),
264}
265
266impl InlayId {
267 fn id(&self) -> usize {
268 match self {
269 Self::InlineCompletion(id) => *id,
270 Self::Hint(id) => *id,
271 }
272 }
273}
274
275enum DiffRowHighlight {}
276enum DocumentHighlightRead {}
277enum DocumentHighlightWrite {}
278enum InputComposition {}
279
280#[derive(Debug, Copy, Clone, PartialEq, Eq)]
281pub enum Navigated {
282 Yes,
283 No,
284}
285
286impl Navigated {
287 pub fn from_bool(yes: bool) -> Navigated {
288 if yes {
289 Navigated::Yes
290 } else {
291 Navigated::No
292 }
293 }
294}
295
296pub fn init_settings(cx: &mut AppContext) {
297 EditorSettings::register(cx);
298}
299
300pub fn init(cx: &mut AppContext) {
301 init_settings(cx);
302
303 workspace::register_project_item::<Editor>(cx);
304 workspace::FollowableViewRegistry::register::<Editor>(cx);
305 workspace::register_serializable_item::<Editor>(cx);
306
307 cx.observe_new_views(
308 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
309 workspace.register_action(Editor::new_file);
310 workspace.register_action(Editor::new_file_vertical);
311 workspace.register_action(Editor::new_file_horizontal);
312 },
313 )
314 .detach();
315
316 cx.on_action(move |_: &workspace::NewFile, cx| {
317 let app_state = workspace::AppState::global(cx);
318 if let Some(app_state) = app_state.upgrade() {
319 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
320 Editor::new_file(workspace, &Default::default(), cx)
321 })
322 .detach();
323 }
324 });
325 cx.on_action(move |_: &workspace::NewWindow, cx| {
326 let app_state = workspace::AppState::global(cx);
327 if let Some(app_state) = app_state.upgrade() {
328 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
329 Editor::new_file(workspace, &Default::default(), cx)
330 })
331 .detach();
332 }
333 });
334 git::project_diff::init(cx);
335}
336
337pub struct SearchWithinRange;
338
339trait InvalidationRegion {
340 fn ranges(&self) -> &[Range<Anchor>];
341}
342
343#[derive(Clone, Debug, PartialEq)]
344pub enum SelectPhase {
345 Begin {
346 position: DisplayPoint,
347 add: bool,
348 click_count: usize,
349 },
350 BeginColumnar {
351 position: DisplayPoint,
352 reset: bool,
353 goal_column: u32,
354 },
355 Extend {
356 position: DisplayPoint,
357 click_count: usize,
358 },
359 Update {
360 position: DisplayPoint,
361 goal_column: u32,
362 scroll_delta: gpui::Point<f32>,
363 },
364 End,
365}
366
367#[derive(Clone, Debug)]
368pub enum SelectMode {
369 Character,
370 Word(Range<Anchor>),
371 Line(Range<Anchor>),
372 All,
373}
374
375#[derive(Copy, Clone, PartialEq, Eq, Debug)]
376pub enum EditorMode {
377 SingleLine { auto_width: bool },
378 AutoHeight { max_lines: usize },
379 Full,
380}
381
382#[derive(Copy, Clone, Debug)]
383pub enum SoftWrap {
384 /// Prefer not to wrap at all.
385 ///
386 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
387 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
388 GitDiff,
389 /// Prefer a single line generally, unless an overly long line is encountered.
390 None,
391 /// Soft wrap lines that exceed the editor width.
392 EditorWidth,
393 /// Soft wrap lines at the preferred line length.
394 Column(u32),
395 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
396 Bounded(u32),
397}
398
399#[derive(Clone)]
400pub struct EditorStyle {
401 pub background: Hsla,
402 pub local_player: PlayerColor,
403 pub text: TextStyle,
404 pub scrollbar_width: Pixels,
405 pub syntax: Arc<SyntaxTheme>,
406 pub status: StatusColors,
407 pub inlay_hints_style: HighlightStyle,
408 pub inline_completion_styles: InlineCompletionStyles,
409 pub unnecessary_code_fade: f32,
410}
411
412impl Default for EditorStyle {
413 fn default() -> Self {
414 Self {
415 background: Hsla::default(),
416 local_player: PlayerColor::default(),
417 text: TextStyle::default(),
418 scrollbar_width: Pixels::default(),
419 syntax: Default::default(),
420 // HACK: Status colors don't have a real default.
421 // We should look into removing the status colors from the editor
422 // style and retrieve them directly from the theme.
423 status: StatusColors::dark(),
424 inlay_hints_style: HighlightStyle::default(),
425 inline_completion_styles: InlineCompletionStyles {
426 insertion: HighlightStyle::default(),
427 whitespace: HighlightStyle::default(),
428 },
429 unnecessary_code_fade: Default::default(),
430 }
431 }
432}
433
434pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
435 let show_background = language_settings::language_settings(None, None, cx)
436 .inlay_hints
437 .show_background;
438
439 HighlightStyle {
440 color: Some(cx.theme().status().hint),
441 background_color: show_background.then(|| cx.theme().status().hint_background),
442 ..HighlightStyle::default()
443 }
444}
445
446pub fn make_suggestion_styles(cx: &WindowContext) -> InlineCompletionStyles {
447 InlineCompletionStyles {
448 insertion: HighlightStyle {
449 color: Some(cx.theme().status().predictive),
450 ..HighlightStyle::default()
451 },
452 whitespace: HighlightStyle {
453 background_color: Some(cx.theme().status().created_background),
454 ..HighlightStyle::default()
455 },
456 }
457}
458
459type CompletionId = usize;
460
461#[derive(Debug, Clone)]
462struct InlineCompletionMenuHint {
463 provider_name: &'static str,
464 text: InlineCompletionText,
465}
466
467#[derive(Clone, Debug)]
468enum InlineCompletionText {
469 Move(SharedString),
470 Edit {
471 text: SharedString,
472 highlights: Vec<(Range<usize>, HighlightStyle)>,
473 },
474}
475
476enum InlineCompletion {
477 Edit(Vec<(Range<Anchor>, String)>),
478 Move(Anchor),
479}
480
481struct InlineCompletionState {
482 inlay_ids: Vec<InlayId>,
483 completion: InlineCompletion,
484 invalidation_range: Range<Anchor>,
485}
486
487enum InlineCompletionHighlight {}
488
489#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
490struct EditorActionId(usize);
491
492impl EditorActionId {
493 pub fn post_inc(&mut self) -> Self {
494 let answer = self.0;
495
496 *self = Self(answer + 1);
497
498 Self(answer)
499 }
500}
501
502// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
503// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
504
505type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
506type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
507
508#[derive(Default)]
509struct ScrollbarMarkerState {
510 scrollbar_size: Size<Pixels>,
511 dirty: bool,
512 markers: Arc<[PaintQuad]>,
513 pending_refresh: Option<Task<Result<()>>>,
514}
515
516impl ScrollbarMarkerState {
517 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
518 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
519 }
520}
521
522#[derive(Clone, Debug)]
523struct RunnableTasks {
524 templates: Vec<(TaskSourceKind, TaskTemplate)>,
525 offset: MultiBufferOffset,
526 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
527 column: u32,
528 // Values of all named captures, including those starting with '_'
529 extra_variables: HashMap<String, String>,
530 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
531 context_range: Range<BufferOffset>,
532}
533
534impl RunnableTasks {
535 fn resolve<'a>(
536 &'a self,
537 cx: &'a task::TaskContext,
538 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
539 self.templates.iter().filter_map(|(kind, template)| {
540 template
541 .resolve_task(&kind.to_id_base(), cx)
542 .map(|task| (kind.clone(), task))
543 })
544 }
545}
546
547#[derive(Clone)]
548struct ResolvedTasks {
549 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
550 position: Anchor,
551}
552#[derive(Copy, Clone, Debug)]
553struct MultiBufferOffset(usize);
554#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
555struct BufferOffset(usize);
556
557// Addons allow storing per-editor state in other crates (e.g. Vim)
558pub trait Addon: 'static {
559 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
560
561 fn to_any(&self) -> &dyn std::any::Any;
562}
563
564#[derive(Debug, Copy, Clone, PartialEq, Eq)]
565pub enum IsVimMode {
566 Yes,
567 No,
568}
569
570/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
571///
572/// See the [module level documentation](self) for more information.
573pub struct Editor {
574 focus_handle: FocusHandle,
575 last_focused_descendant: Option<WeakFocusHandle>,
576 /// The text buffer being edited
577 buffer: Model<MultiBuffer>,
578 /// Map of how text in the buffer should be displayed.
579 /// Handles soft wraps, folds, fake inlay text insertions, etc.
580 pub display_map: Model<DisplayMap>,
581 pub selections: SelectionsCollection,
582 pub scroll_manager: ScrollManager,
583 /// When inline assist editors are linked, they all render cursors because
584 /// typing enters text into each of them, even the ones that aren't focused.
585 pub(crate) show_cursor_when_unfocused: bool,
586 columnar_selection_tail: Option<Anchor>,
587 add_selections_state: Option<AddSelectionsState>,
588 select_next_state: Option<SelectNextState>,
589 select_prev_state: Option<SelectNextState>,
590 selection_history: SelectionHistory,
591 autoclose_regions: Vec<AutocloseRegion>,
592 snippet_stack: InvalidationStack<SnippetState>,
593 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
594 ime_transaction: Option<TransactionId>,
595 active_diagnostics: Option<ActiveDiagnosticGroup>,
596 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
597
598 project: Option<Model<Project>>,
599 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
600 completion_provider: Option<Box<dyn CompletionProvider>>,
601 collaboration_hub: Option<Box<dyn CollaborationHub>>,
602 blink_manager: Model<BlinkManager>,
603 show_cursor_names: bool,
604 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
605 pub show_local_selections: bool,
606 mode: EditorMode,
607 show_breadcrumbs: bool,
608 show_gutter: bool,
609 show_scrollbars: bool,
610 show_line_numbers: Option<bool>,
611 use_relative_line_numbers: Option<bool>,
612 show_git_diff_gutter: Option<bool>,
613 show_code_actions: Option<bool>,
614 show_runnables: Option<bool>,
615 show_wrap_guides: Option<bool>,
616 show_indent_guides: Option<bool>,
617 placeholder_text: Option<Arc<str>>,
618 highlight_order: usize,
619 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
620 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
621 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
622 scrollbar_marker_state: ScrollbarMarkerState,
623 active_indent_guides_state: ActiveIndentGuidesState,
624 nav_history: Option<ItemNavHistory>,
625 context_menu: RefCell<Option<CodeContextMenu>>,
626 mouse_context_menu: Option<MouseContextMenu>,
627 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
628 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
629 signature_help_state: SignatureHelpState,
630 auto_signature_help: Option<bool>,
631 find_all_references_task_sources: Vec<Anchor>,
632 next_completion_id: CompletionId,
633 available_code_actions: Option<(Location, Rc<[AvailableCodeAction]>)>,
634 code_actions_task: Option<Task<Result<()>>>,
635 document_highlights_task: Option<Task<()>>,
636 linked_editing_range_task: Option<Task<Option<()>>>,
637 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
638 pending_rename: Option<RenameState>,
639 searchable: bool,
640 cursor_shape: CursorShape,
641 current_line_highlight: Option<CurrentLineHighlight>,
642 collapse_matches: bool,
643 autoindent_mode: Option<AutoindentMode>,
644 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
645 input_enabled: bool,
646 use_modal_editing: bool,
647 read_only: bool,
648 leader_peer_id: Option<PeerId>,
649 remote_id: Option<ViewId>,
650 hover_state: HoverState,
651 gutter_hovered: bool,
652 hovered_link_state: Option<HoveredLinkState>,
653 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
654 code_action_providers: Vec<Rc<dyn CodeActionProvider>>,
655 active_inline_completion: Option<InlineCompletionState>,
656 // enable_inline_completions is a switch that Vim can use to disable
657 // inline completions based on its mode.
658 enable_inline_completions: bool,
659 show_inline_completions_override: Option<bool>,
660 inlay_hint_cache: InlayHintCache,
661 diff_map: DiffMap,
662 next_inlay_id: usize,
663 _subscriptions: Vec<Subscription>,
664 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
665 gutter_dimensions: GutterDimensions,
666 style: Option<EditorStyle>,
667 text_style_refinement: Option<TextStyleRefinement>,
668 next_editor_action_id: EditorActionId,
669 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
670 use_autoclose: bool,
671 use_auto_surround: bool,
672 auto_replace_emoji_shortcode: bool,
673 show_git_blame_gutter: bool,
674 show_git_blame_inline: bool,
675 show_git_blame_inline_delay_task: Option<Task<()>>,
676 git_blame_inline_enabled: bool,
677 serialize_dirty_buffers: bool,
678 show_selection_menu: Option<bool>,
679 blame: Option<Model<GitBlame>>,
680 blame_subscription: Option<Subscription>,
681 custom_context_menu: Option<
682 Box<
683 dyn 'static
684 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
685 >,
686 >,
687 last_bounds: Option<Bounds<Pixels>>,
688 expect_bounds_change: Option<Bounds<Pixels>>,
689 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
690 tasks_update_task: Option<Task<()>>,
691 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
692 breadcrumb_header: Option<String>,
693 focused_block: Option<FocusedBlock>,
694 next_scroll_position: NextScrollCursorCenterTopBottom,
695 addons: HashMap<TypeId, Box<dyn Addon>>,
696 registered_buffers: HashMap<BufferId, OpenLspBufferHandle>,
697 toggle_fold_multiple_buffers: Task<()>,
698 _scroll_cursor_center_top_bottom_task: Task<()>,
699}
700
701#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
702enum NextScrollCursorCenterTopBottom {
703 #[default]
704 Center,
705 Top,
706 Bottom,
707}
708
709impl NextScrollCursorCenterTopBottom {
710 fn next(&self) -> Self {
711 match self {
712 Self::Center => Self::Top,
713 Self::Top => Self::Bottom,
714 Self::Bottom => Self::Center,
715 }
716 }
717}
718
719#[derive(Clone)]
720pub struct EditorSnapshot {
721 pub mode: EditorMode,
722 show_gutter: bool,
723 show_line_numbers: Option<bool>,
724 show_git_diff_gutter: Option<bool>,
725 show_code_actions: Option<bool>,
726 show_runnables: Option<bool>,
727 git_blame_gutter_max_author_length: Option<usize>,
728 pub display_snapshot: DisplaySnapshot,
729 pub placeholder_text: Option<Arc<str>>,
730 diff_map: DiffMapSnapshot,
731 is_focused: bool,
732 scroll_anchor: ScrollAnchor,
733 ongoing_scroll: OngoingScroll,
734 current_line_highlight: CurrentLineHighlight,
735 gutter_hovered: bool,
736}
737
738const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
739
740#[derive(Default, Debug, Clone, Copy)]
741pub struct GutterDimensions {
742 pub left_padding: Pixels,
743 pub right_padding: Pixels,
744 pub width: Pixels,
745 pub margin: Pixels,
746 pub git_blame_entries_width: Option<Pixels>,
747}
748
749impl GutterDimensions {
750 /// The full width of the space taken up by the gutter.
751 pub fn full_width(&self) -> Pixels {
752 self.margin + self.width
753 }
754
755 /// The width of the space reserved for the fold indicators,
756 /// use alongside 'justify_end' and `gutter_width` to
757 /// right align content with the line numbers
758 pub fn fold_area_width(&self) -> Pixels {
759 self.margin + self.right_padding
760 }
761}
762
763#[derive(Debug)]
764pub struct RemoteSelection {
765 pub replica_id: ReplicaId,
766 pub selection: Selection<Anchor>,
767 pub cursor_shape: CursorShape,
768 pub peer_id: PeerId,
769 pub line_mode: bool,
770 pub participant_index: Option<ParticipantIndex>,
771 pub user_name: Option<SharedString>,
772}
773
774#[derive(Clone, Debug)]
775struct SelectionHistoryEntry {
776 selections: Arc<[Selection<Anchor>]>,
777 select_next_state: Option<SelectNextState>,
778 select_prev_state: Option<SelectNextState>,
779 add_selections_state: Option<AddSelectionsState>,
780}
781
782enum SelectionHistoryMode {
783 Normal,
784 Undoing,
785 Redoing,
786}
787
788#[derive(Clone, PartialEq, Eq, Hash)]
789struct HoveredCursor {
790 replica_id: u16,
791 selection_id: usize,
792}
793
794impl Default for SelectionHistoryMode {
795 fn default() -> Self {
796 Self::Normal
797 }
798}
799
800#[derive(Default)]
801struct SelectionHistory {
802 #[allow(clippy::type_complexity)]
803 selections_by_transaction:
804 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
805 mode: SelectionHistoryMode,
806 undo_stack: VecDeque<SelectionHistoryEntry>,
807 redo_stack: VecDeque<SelectionHistoryEntry>,
808}
809
810impl SelectionHistory {
811 fn insert_transaction(
812 &mut self,
813 transaction_id: TransactionId,
814 selections: Arc<[Selection<Anchor>]>,
815 ) {
816 self.selections_by_transaction
817 .insert(transaction_id, (selections, None));
818 }
819
820 #[allow(clippy::type_complexity)]
821 fn transaction(
822 &self,
823 transaction_id: TransactionId,
824 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
825 self.selections_by_transaction.get(&transaction_id)
826 }
827
828 #[allow(clippy::type_complexity)]
829 fn transaction_mut(
830 &mut self,
831 transaction_id: TransactionId,
832 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
833 self.selections_by_transaction.get_mut(&transaction_id)
834 }
835
836 fn push(&mut self, entry: SelectionHistoryEntry) {
837 if !entry.selections.is_empty() {
838 match self.mode {
839 SelectionHistoryMode::Normal => {
840 self.push_undo(entry);
841 self.redo_stack.clear();
842 }
843 SelectionHistoryMode::Undoing => self.push_redo(entry),
844 SelectionHistoryMode::Redoing => self.push_undo(entry),
845 }
846 }
847 }
848
849 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
850 if self
851 .undo_stack
852 .back()
853 .map_or(true, |e| e.selections != entry.selections)
854 {
855 self.undo_stack.push_back(entry);
856 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
857 self.undo_stack.pop_front();
858 }
859 }
860 }
861
862 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
863 if self
864 .redo_stack
865 .back()
866 .map_or(true, |e| e.selections != entry.selections)
867 {
868 self.redo_stack.push_back(entry);
869 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
870 self.redo_stack.pop_front();
871 }
872 }
873 }
874}
875
876struct RowHighlight {
877 index: usize,
878 range: Range<Anchor>,
879 color: Hsla,
880 should_autoscroll: bool,
881}
882
883#[derive(Clone, Debug)]
884struct AddSelectionsState {
885 above: bool,
886 stack: Vec<usize>,
887}
888
889#[derive(Clone)]
890struct SelectNextState {
891 query: AhoCorasick,
892 wordwise: bool,
893 done: bool,
894}
895
896impl std::fmt::Debug for SelectNextState {
897 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
898 f.debug_struct(std::any::type_name::<Self>())
899 .field("wordwise", &self.wordwise)
900 .field("done", &self.done)
901 .finish()
902 }
903}
904
905#[derive(Debug)]
906struct AutocloseRegion {
907 selection_id: usize,
908 range: Range<Anchor>,
909 pair: BracketPair,
910}
911
912#[derive(Debug)]
913struct SnippetState {
914 ranges: Vec<Vec<Range<Anchor>>>,
915 active_index: usize,
916 choices: Vec<Option<Vec<String>>>,
917}
918
919#[doc(hidden)]
920pub struct RenameState {
921 pub range: Range<Anchor>,
922 pub old_name: Arc<str>,
923 pub editor: View<Editor>,
924 block_id: CustomBlockId,
925}
926
927struct InvalidationStack<T>(Vec<T>);
928
929struct RegisteredInlineCompletionProvider {
930 provider: Arc<dyn InlineCompletionProviderHandle>,
931 _subscription: Subscription,
932}
933
934#[derive(Debug)]
935struct ActiveDiagnosticGroup {
936 primary_range: Range<Anchor>,
937 primary_message: String,
938 group_id: usize,
939 blocks: HashMap<CustomBlockId, Diagnostic>,
940 is_valid: bool,
941}
942
943#[derive(Serialize, Deserialize, Clone, Debug)]
944pub struct ClipboardSelection {
945 pub len: usize,
946 pub is_entire_line: bool,
947 pub first_line_indent: u32,
948}
949
950#[derive(Debug)]
951pub(crate) struct NavigationData {
952 cursor_anchor: Anchor,
953 cursor_position: Point,
954 scroll_anchor: ScrollAnchor,
955 scroll_top_row: u32,
956}
957
958#[derive(Debug, Clone, Copy, PartialEq, Eq)]
959pub enum GotoDefinitionKind {
960 Symbol,
961 Declaration,
962 Type,
963 Implementation,
964}
965
966#[derive(Debug, Clone)]
967enum InlayHintRefreshReason {
968 Toggle(bool),
969 SettingsChange(InlayHintSettings),
970 NewLinesShown,
971 BufferEdited(HashSet<Arc<Language>>),
972 RefreshRequested,
973 ExcerptsRemoved(Vec<ExcerptId>),
974}
975
976impl InlayHintRefreshReason {
977 fn description(&self) -> &'static str {
978 match self {
979 Self::Toggle(_) => "toggle",
980 Self::SettingsChange(_) => "settings change",
981 Self::NewLinesShown => "new lines shown",
982 Self::BufferEdited(_) => "buffer edited",
983 Self::RefreshRequested => "refresh requested",
984 Self::ExcerptsRemoved(_) => "excerpts removed",
985 }
986 }
987}
988
989pub(crate) struct FocusedBlock {
990 id: BlockId,
991 focus_handle: WeakFocusHandle,
992}
993
994#[derive(Clone)]
995enum JumpData {
996 MultiBufferRow {
997 row: MultiBufferRow,
998 line_offset_from_top: u32,
999 },
1000 MultiBufferPoint {
1001 excerpt_id: ExcerptId,
1002 position: Point,
1003 anchor: text::Anchor,
1004 line_offset_from_top: u32,
1005 },
1006}
1007
1008impl Editor {
1009 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1010 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1011 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1012 Self::new(
1013 EditorMode::SingleLine { auto_width: false },
1014 buffer,
1015 None,
1016 false,
1017 cx,
1018 )
1019 }
1020
1021 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1022 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1023 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1024 Self::new(EditorMode::Full, buffer, None, false, cx)
1025 }
1026
1027 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1028 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1029 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1030 Self::new(
1031 EditorMode::SingleLine { auto_width: true },
1032 buffer,
1033 None,
1034 false,
1035 cx,
1036 )
1037 }
1038
1039 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1040 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1041 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1042 Self::new(
1043 EditorMode::AutoHeight { max_lines },
1044 buffer,
1045 None,
1046 false,
1047 cx,
1048 )
1049 }
1050
1051 pub fn for_buffer(
1052 buffer: Model<Buffer>,
1053 project: Option<Model<Project>>,
1054 cx: &mut ViewContext<Self>,
1055 ) -> Self {
1056 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1057 Self::new(EditorMode::Full, buffer, project, false, cx)
1058 }
1059
1060 pub fn for_multibuffer(
1061 buffer: Model<MultiBuffer>,
1062 project: Option<Model<Project>>,
1063 show_excerpt_controls: bool,
1064 cx: &mut ViewContext<Self>,
1065 ) -> Self {
1066 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1067 }
1068
1069 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1070 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1071 let mut clone = Self::new(
1072 self.mode,
1073 self.buffer.clone(),
1074 self.project.clone(),
1075 show_excerpt_controls,
1076 cx,
1077 );
1078 self.display_map.update(cx, |display_map, cx| {
1079 let snapshot = display_map.snapshot(cx);
1080 clone.display_map.update(cx, |display_map, cx| {
1081 display_map.set_state(&snapshot, cx);
1082 });
1083 });
1084 clone.selections.clone_state(&self.selections);
1085 clone.scroll_manager.clone_state(&self.scroll_manager);
1086 clone.searchable = self.searchable;
1087 clone
1088 }
1089
1090 pub fn new(
1091 mode: EditorMode,
1092 buffer: Model<MultiBuffer>,
1093 project: Option<Model<Project>>,
1094 show_excerpt_controls: bool,
1095 cx: &mut ViewContext<Self>,
1096 ) -> Self {
1097 let style = cx.text_style();
1098 let font_size = style.font_size.to_pixels(cx.rem_size());
1099 let editor = cx.view().downgrade();
1100 let fold_placeholder = FoldPlaceholder {
1101 constrain_width: true,
1102 render: Arc::new(move |fold_id, fold_range, cx| {
1103 let editor = editor.clone();
1104 div()
1105 .id(fold_id)
1106 .bg(cx.theme().colors().ghost_element_background)
1107 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1108 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1109 .rounded_sm()
1110 .size_full()
1111 .cursor_pointer()
1112 .child("⋯")
1113 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1114 .on_click(move |_, cx| {
1115 editor
1116 .update(cx, |editor, cx| {
1117 editor.unfold_ranges(
1118 &[fold_range.start..fold_range.end],
1119 true,
1120 false,
1121 cx,
1122 );
1123 cx.stop_propagation();
1124 })
1125 .ok();
1126 })
1127 .into_any()
1128 }),
1129 merge_adjacent: true,
1130 ..Default::default()
1131 };
1132 let display_map = cx.new_model(|cx| {
1133 DisplayMap::new(
1134 buffer.clone(),
1135 style.font(),
1136 font_size,
1137 None,
1138 show_excerpt_controls,
1139 FILE_HEADER_HEIGHT,
1140 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1141 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1142 fold_placeholder,
1143 cx,
1144 )
1145 });
1146
1147 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1148
1149 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1150
1151 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1152 .then(|| language_settings::SoftWrap::None);
1153
1154 let mut project_subscriptions = Vec::new();
1155 if mode == EditorMode::Full {
1156 if let Some(project) = project.as_ref() {
1157 if buffer.read(cx).is_singleton() {
1158 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1159 cx.emit(EditorEvent::TitleChanged);
1160 }));
1161 }
1162 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1163 if let project::Event::RefreshInlayHints = event {
1164 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1165 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1166 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1167 let focus_handle = editor.focus_handle(cx);
1168 if focus_handle.is_focused(cx) {
1169 let snapshot = buffer.read(cx).snapshot();
1170 for (range, snippet) in snippet_edits {
1171 let editor_range =
1172 language::range_from_lsp(*range).to_offset(&snapshot);
1173 editor
1174 .insert_snippet(&[editor_range], snippet.clone(), cx)
1175 .ok();
1176 }
1177 }
1178 }
1179 }
1180 }));
1181 if let Some(task_inventory) = project
1182 .read(cx)
1183 .task_store()
1184 .read(cx)
1185 .task_inventory()
1186 .cloned()
1187 {
1188 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1189 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1190 }));
1191 }
1192 }
1193 }
1194
1195 let buffer_snapshot = buffer.read(cx).snapshot(cx);
1196
1197 let inlay_hint_settings =
1198 inlay_hint_settings(selections.newest_anchor().head(), &buffer_snapshot, cx);
1199 let focus_handle = cx.focus_handle();
1200 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1201 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1202 .detach();
1203 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1204 .detach();
1205 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1206
1207 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1208 Some(false)
1209 } else {
1210 None
1211 };
1212
1213 let mut code_action_providers = Vec::new();
1214 if let Some(project) = project.clone() {
1215 get_unstaged_changes_for_buffers(&project, buffer.read(cx).all_buffers(), cx);
1216 code_action_providers.push(Rc::new(project) as Rc<_>);
1217 }
1218
1219 let mut this = Self {
1220 focus_handle,
1221 show_cursor_when_unfocused: false,
1222 last_focused_descendant: None,
1223 buffer: buffer.clone(),
1224 display_map: display_map.clone(),
1225 selections,
1226 scroll_manager: ScrollManager::new(cx),
1227 columnar_selection_tail: None,
1228 add_selections_state: None,
1229 select_next_state: None,
1230 select_prev_state: None,
1231 selection_history: Default::default(),
1232 autoclose_regions: Default::default(),
1233 snippet_stack: Default::default(),
1234 select_larger_syntax_node_stack: Vec::new(),
1235 ime_transaction: Default::default(),
1236 active_diagnostics: None,
1237 soft_wrap_mode_override,
1238 completion_provider: project.clone().map(|project| Box::new(project) as _),
1239 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1240 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1241 project,
1242 blink_manager: blink_manager.clone(),
1243 show_local_selections: true,
1244 show_scrollbars: true,
1245 mode,
1246 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1247 show_gutter: mode == EditorMode::Full,
1248 show_line_numbers: None,
1249 use_relative_line_numbers: None,
1250 show_git_diff_gutter: None,
1251 show_code_actions: None,
1252 show_runnables: None,
1253 show_wrap_guides: None,
1254 show_indent_guides,
1255 placeholder_text: None,
1256 highlight_order: 0,
1257 highlighted_rows: HashMap::default(),
1258 background_highlights: Default::default(),
1259 gutter_highlights: TreeMap::default(),
1260 scrollbar_marker_state: ScrollbarMarkerState::default(),
1261 active_indent_guides_state: ActiveIndentGuidesState::default(),
1262 nav_history: None,
1263 context_menu: RefCell::new(None),
1264 mouse_context_menu: None,
1265 hunk_controls_menu_handle: PopoverMenuHandle::default(),
1266 completion_tasks: Default::default(),
1267 signature_help_state: SignatureHelpState::default(),
1268 auto_signature_help: None,
1269 find_all_references_task_sources: Vec::new(),
1270 next_completion_id: 0,
1271 next_inlay_id: 0,
1272 code_action_providers,
1273 available_code_actions: Default::default(),
1274 code_actions_task: Default::default(),
1275 document_highlights_task: Default::default(),
1276 linked_editing_range_task: Default::default(),
1277 pending_rename: Default::default(),
1278 searchable: true,
1279 cursor_shape: EditorSettings::get_global(cx)
1280 .cursor_shape
1281 .unwrap_or_default(),
1282 current_line_highlight: None,
1283 autoindent_mode: Some(AutoindentMode::EachLine),
1284 collapse_matches: false,
1285 workspace: None,
1286 input_enabled: true,
1287 use_modal_editing: mode == EditorMode::Full,
1288 read_only: false,
1289 use_autoclose: true,
1290 use_auto_surround: true,
1291 auto_replace_emoji_shortcode: false,
1292 leader_peer_id: None,
1293 remote_id: None,
1294 hover_state: Default::default(),
1295 hovered_link_state: Default::default(),
1296 inline_completion_provider: None,
1297 active_inline_completion: None,
1298 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1299 diff_map: DiffMap::default(),
1300 gutter_hovered: false,
1301 pixel_position_of_newest_cursor: None,
1302 last_bounds: None,
1303 expect_bounds_change: None,
1304 gutter_dimensions: GutterDimensions::default(),
1305 style: None,
1306 show_cursor_names: false,
1307 hovered_cursors: Default::default(),
1308 next_editor_action_id: EditorActionId::default(),
1309 editor_actions: Rc::default(),
1310 show_inline_completions_override: None,
1311 enable_inline_completions: true,
1312 custom_context_menu: None,
1313 show_git_blame_gutter: false,
1314 show_git_blame_inline: false,
1315 show_selection_menu: None,
1316 show_git_blame_inline_delay_task: None,
1317 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1318 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1319 .session
1320 .restore_unsaved_buffers,
1321 blame: None,
1322 blame_subscription: None,
1323 tasks: Default::default(),
1324 _subscriptions: vec![
1325 cx.observe(&buffer, Self::on_buffer_changed),
1326 cx.subscribe(&buffer, Self::on_buffer_event),
1327 cx.observe(&display_map, Self::on_display_map_changed),
1328 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1329 cx.observe_global::<SettingsStore>(Self::settings_changed),
1330 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1331 cx.observe_window_activation(|editor, cx| {
1332 let active = cx.is_window_active();
1333 editor.blink_manager.update(cx, |blink_manager, cx| {
1334 if active {
1335 blink_manager.enable(cx);
1336 } else {
1337 blink_manager.disable(cx);
1338 }
1339 });
1340 }),
1341 ],
1342 tasks_update_task: None,
1343 linked_edit_ranges: Default::default(),
1344 previous_search_ranges: None,
1345 breadcrumb_header: None,
1346 focused_block: None,
1347 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
1348 addons: HashMap::default(),
1349 registered_buffers: HashMap::default(),
1350 _scroll_cursor_center_top_bottom_task: Task::ready(()),
1351 toggle_fold_multiple_buffers: Task::ready(()),
1352 text_style_refinement: None,
1353 };
1354 this.tasks_update_task = Some(this.refresh_runnables(cx));
1355 this._subscriptions.extend(project_subscriptions);
1356
1357 this.end_selection(cx);
1358 this.scroll_manager.show_scrollbar(cx);
1359
1360 if mode == EditorMode::Full {
1361 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1362 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1363
1364 if this.git_blame_inline_enabled {
1365 this.git_blame_inline_enabled = true;
1366 this.start_git_blame_inline(false, cx);
1367 }
1368
1369 if let Some(buffer) = buffer.read(cx).as_singleton() {
1370 if let Some(project) = this.project.as_ref() {
1371 let lsp_store = project.read(cx).lsp_store();
1372 let handle = lsp_store.update(cx, |lsp_store, cx| {
1373 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1374 });
1375 this.registered_buffers
1376 .insert(buffer.read(cx).remote_id(), handle);
1377 }
1378 }
1379 }
1380
1381 this.report_editor_event("Editor Opened", None, cx);
1382 this
1383 }
1384
1385 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
1386 self.mouse_context_menu
1387 .as_ref()
1388 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1389 }
1390
1391 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
1392 let mut key_context = KeyContext::new_with_defaults();
1393 key_context.add("Editor");
1394 let mode = match self.mode {
1395 EditorMode::SingleLine { .. } => "single_line",
1396 EditorMode::AutoHeight { .. } => "auto_height",
1397 EditorMode::Full => "full",
1398 };
1399
1400 if EditorSettings::jupyter_enabled(cx) {
1401 key_context.add("jupyter");
1402 }
1403
1404 key_context.set("mode", mode);
1405 if self.pending_rename.is_some() {
1406 key_context.add("renaming");
1407 }
1408 match self.context_menu.borrow().as_ref() {
1409 Some(CodeContextMenu::Completions(_)) => {
1410 key_context.add("menu");
1411 key_context.add("showing_completions")
1412 }
1413 Some(CodeContextMenu::CodeActions(_)) => {
1414 key_context.add("menu");
1415 key_context.add("showing_code_actions")
1416 }
1417 None => {}
1418 }
1419
1420 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
1421 if !self.focus_handle(cx).contains_focused(cx)
1422 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
1423 {
1424 for addon in self.addons.values() {
1425 addon.extend_key_context(&mut key_context, cx)
1426 }
1427 }
1428
1429 if let Some(extension) = self
1430 .buffer
1431 .read(cx)
1432 .as_singleton()
1433 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1434 {
1435 key_context.set("extension", extension.to_string());
1436 }
1437
1438 if self.has_active_inline_completion() {
1439 key_context.add("copilot_suggestion");
1440 key_context.add("inline_completion");
1441 }
1442
1443 if !self
1444 .selections
1445 .disjoint
1446 .iter()
1447 .all(|selection| selection.start == selection.end)
1448 {
1449 key_context.add("selection");
1450 }
1451
1452 key_context
1453 }
1454
1455 pub fn new_file(
1456 workspace: &mut Workspace,
1457 _: &workspace::NewFile,
1458 cx: &mut ViewContext<Workspace>,
1459 ) {
1460 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
1461 "Failed to create buffer",
1462 cx,
1463 |e, _| match e.error_code() {
1464 ErrorCode::RemoteUpgradeRequired => Some(format!(
1465 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1466 e.error_tag("required").unwrap_or("the latest version")
1467 )),
1468 _ => None,
1469 },
1470 );
1471 }
1472
1473 pub fn new_in_workspace(
1474 workspace: &mut Workspace,
1475 cx: &mut ViewContext<Workspace>,
1476 ) -> Task<Result<View<Editor>>> {
1477 let project = workspace.project().clone();
1478 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1479
1480 cx.spawn(|workspace, mut cx| async move {
1481 let buffer = create.await?;
1482 workspace.update(&mut cx, |workspace, cx| {
1483 let editor =
1484 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
1485 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
1486 editor
1487 })
1488 })
1489 }
1490
1491 fn new_file_vertical(
1492 workspace: &mut Workspace,
1493 _: &workspace::NewFileSplitVertical,
1494 cx: &mut ViewContext<Workspace>,
1495 ) {
1496 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
1497 }
1498
1499 fn new_file_horizontal(
1500 workspace: &mut Workspace,
1501 _: &workspace::NewFileSplitHorizontal,
1502 cx: &mut ViewContext<Workspace>,
1503 ) {
1504 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
1505 }
1506
1507 fn new_file_in_direction(
1508 workspace: &mut Workspace,
1509 direction: SplitDirection,
1510 cx: &mut ViewContext<Workspace>,
1511 ) {
1512 let project = workspace.project().clone();
1513 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1514
1515 cx.spawn(|workspace, mut cx| async move {
1516 let buffer = create.await?;
1517 workspace.update(&mut cx, move |workspace, cx| {
1518 workspace.split_item(
1519 direction,
1520 Box::new(
1521 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1522 ),
1523 cx,
1524 )
1525 })?;
1526 anyhow::Ok(())
1527 })
1528 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1529 ErrorCode::RemoteUpgradeRequired => Some(format!(
1530 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1531 e.error_tag("required").unwrap_or("the latest version")
1532 )),
1533 _ => None,
1534 });
1535 }
1536
1537 pub fn leader_peer_id(&self) -> Option<PeerId> {
1538 self.leader_peer_id
1539 }
1540
1541 pub fn buffer(&self) -> &Model<MultiBuffer> {
1542 &self.buffer
1543 }
1544
1545 pub fn workspace(&self) -> Option<View<Workspace>> {
1546 self.workspace.as_ref()?.0.upgrade()
1547 }
1548
1549 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1550 self.buffer().read(cx).title(cx)
1551 }
1552
1553 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1554 let git_blame_gutter_max_author_length = self
1555 .render_git_blame_gutter(cx)
1556 .then(|| {
1557 if let Some(blame) = self.blame.as_ref() {
1558 let max_author_length =
1559 blame.update(cx, |blame, cx| blame.max_author_length(cx));
1560 Some(max_author_length)
1561 } else {
1562 None
1563 }
1564 })
1565 .flatten();
1566
1567 EditorSnapshot {
1568 mode: self.mode,
1569 show_gutter: self.show_gutter,
1570 show_line_numbers: self.show_line_numbers,
1571 show_git_diff_gutter: self.show_git_diff_gutter,
1572 show_code_actions: self.show_code_actions,
1573 show_runnables: self.show_runnables,
1574 git_blame_gutter_max_author_length,
1575 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1576 scroll_anchor: self.scroll_manager.anchor(),
1577 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1578 placeholder_text: self.placeholder_text.clone(),
1579 diff_map: self.diff_map.snapshot(),
1580 is_focused: self.focus_handle.is_focused(cx),
1581 current_line_highlight: self
1582 .current_line_highlight
1583 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
1584 gutter_hovered: self.gutter_hovered,
1585 }
1586 }
1587
1588 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1589 self.buffer.read(cx).language_at(point, cx)
1590 }
1591
1592 pub fn file_at<T: ToOffset>(
1593 &self,
1594 point: T,
1595 cx: &AppContext,
1596 ) -> Option<Arc<dyn language::File>> {
1597 self.buffer.read(cx).read(cx).file_at(point).cloned()
1598 }
1599
1600 pub fn active_excerpt(
1601 &self,
1602 cx: &AppContext,
1603 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1604 self.buffer
1605 .read(cx)
1606 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1607 }
1608
1609 pub fn mode(&self) -> EditorMode {
1610 self.mode
1611 }
1612
1613 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1614 self.collaboration_hub.as_deref()
1615 }
1616
1617 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1618 self.collaboration_hub = Some(hub);
1619 }
1620
1621 pub fn set_custom_context_menu(
1622 &mut self,
1623 f: impl 'static
1624 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1625 ) {
1626 self.custom_context_menu = Some(Box::new(f))
1627 }
1628
1629 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
1630 self.completion_provider = provider;
1631 }
1632
1633 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
1634 self.semantics_provider.clone()
1635 }
1636
1637 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
1638 self.semantics_provider = provider;
1639 }
1640
1641 pub fn set_inline_completion_provider<T>(
1642 &mut self,
1643 provider: Option<Model<T>>,
1644 cx: &mut ViewContext<Self>,
1645 ) where
1646 T: InlineCompletionProvider,
1647 {
1648 self.inline_completion_provider =
1649 provider.map(|provider| RegisteredInlineCompletionProvider {
1650 _subscription: cx.observe(&provider, |this, _, cx| {
1651 if this.focus_handle.is_focused(cx) {
1652 this.update_visible_inline_completion(cx);
1653 }
1654 }),
1655 provider: Arc::new(provider),
1656 });
1657 self.refresh_inline_completion(false, false, cx);
1658 }
1659
1660 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
1661 self.placeholder_text.as_deref()
1662 }
1663
1664 pub fn set_placeholder_text(
1665 &mut self,
1666 placeholder_text: impl Into<Arc<str>>,
1667 cx: &mut ViewContext<Self>,
1668 ) {
1669 let placeholder_text = Some(placeholder_text.into());
1670 if self.placeholder_text != placeholder_text {
1671 self.placeholder_text = placeholder_text;
1672 cx.notify();
1673 }
1674 }
1675
1676 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1677 self.cursor_shape = cursor_shape;
1678
1679 // Disrupt blink for immediate user feedback that the cursor shape has changed
1680 self.blink_manager.update(cx, BlinkManager::show_cursor);
1681
1682 cx.notify();
1683 }
1684
1685 pub fn set_current_line_highlight(
1686 &mut self,
1687 current_line_highlight: Option<CurrentLineHighlight>,
1688 ) {
1689 self.current_line_highlight = current_line_highlight;
1690 }
1691
1692 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1693 self.collapse_matches = collapse_matches;
1694 }
1695
1696 pub fn register_buffers_with_language_servers(&mut self, cx: &mut ViewContext<Self>) {
1697 let buffers = self.buffer.read(cx).all_buffers();
1698 let Some(lsp_store) = self.lsp_store(cx) else {
1699 return;
1700 };
1701 lsp_store.update(cx, |lsp_store, cx| {
1702 for buffer in buffers {
1703 self.registered_buffers
1704 .entry(buffer.read(cx).remote_id())
1705 .or_insert_with(|| {
1706 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1707 });
1708 }
1709 })
1710 }
1711
1712 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1713 if self.collapse_matches {
1714 return range.start..range.start;
1715 }
1716 range.clone()
1717 }
1718
1719 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1720 if self.display_map.read(cx).clip_at_line_ends != clip {
1721 self.display_map
1722 .update(cx, |map, _| map.clip_at_line_ends = clip);
1723 }
1724 }
1725
1726 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1727 self.input_enabled = input_enabled;
1728 }
1729
1730 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
1731 self.enable_inline_completions = enabled;
1732 }
1733
1734 pub fn set_autoindent(&mut self, autoindent: bool) {
1735 if autoindent {
1736 self.autoindent_mode = Some(AutoindentMode::EachLine);
1737 } else {
1738 self.autoindent_mode = None;
1739 }
1740 }
1741
1742 pub fn read_only(&self, cx: &AppContext) -> bool {
1743 self.read_only || self.buffer.read(cx).read_only()
1744 }
1745
1746 pub fn set_read_only(&mut self, read_only: bool) {
1747 self.read_only = read_only;
1748 }
1749
1750 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1751 self.use_autoclose = autoclose;
1752 }
1753
1754 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
1755 self.use_auto_surround = auto_surround;
1756 }
1757
1758 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1759 self.auto_replace_emoji_shortcode = auto_replace;
1760 }
1761
1762 pub fn toggle_inline_completions(
1763 &mut self,
1764 _: &ToggleInlineCompletions,
1765 cx: &mut ViewContext<Self>,
1766 ) {
1767 if self.show_inline_completions_override.is_some() {
1768 self.set_show_inline_completions(None, cx);
1769 } else {
1770 let cursor = self.selections.newest_anchor().head();
1771 if let Some((buffer, cursor_buffer_position)) =
1772 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1773 {
1774 let show_inline_completions =
1775 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
1776 self.set_show_inline_completions(Some(show_inline_completions), cx);
1777 }
1778 }
1779 }
1780
1781 pub fn set_show_inline_completions(
1782 &mut self,
1783 show_inline_completions: Option<bool>,
1784 cx: &mut ViewContext<Self>,
1785 ) {
1786 self.show_inline_completions_override = show_inline_completions;
1787 self.refresh_inline_completion(false, true, cx);
1788 }
1789
1790 pub fn inline_completions_enabled(&self, cx: &AppContext) -> bool {
1791 let cursor = self.selections.newest_anchor().head();
1792 if let Some((buffer, buffer_position)) =
1793 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1794 {
1795 self.should_show_inline_completions(&buffer, buffer_position, cx)
1796 } else {
1797 false
1798 }
1799 }
1800
1801 fn should_show_inline_completions(
1802 &self,
1803 buffer: &Model<Buffer>,
1804 buffer_position: language::Anchor,
1805 cx: &AppContext,
1806 ) -> bool {
1807 if !self.snippet_stack.is_empty() {
1808 return false;
1809 }
1810
1811 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
1812 return false;
1813 }
1814
1815 if let Some(provider) = self.inline_completion_provider() {
1816 if let Some(show_inline_completions) = self.show_inline_completions_override {
1817 show_inline_completions
1818 } else {
1819 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
1820 }
1821 } else {
1822 false
1823 }
1824 }
1825
1826 fn inline_completions_disabled_in_scope(
1827 &self,
1828 buffer: &Model<Buffer>,
1829 buffer_position: language::Anchor,
1830 cx: &AppContext,
1831 ) -> bool {
1832 let snapshot = buffer.read(cx).snapshot();
1833 let settings = snapshot.settings_at(buffer_position, cx);
1834
1835 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
1836 return false;
1837 };
1838
1839 scope.override_name().map_or(false, |scope_name| {
1840 settings
1841 .inline_completions_disabled_in
1842 .iter()
1843 .any(|s| s == scope_name)
1844 })
1845 }
1846
1847 pub fn set_use_modal_editing(&mut self, to: bool) {
1848 self.use_modal_editing = to;
1849 }
1850
1851 pub fn use_modal_editing(&self) -> bool {
1852 self.use_modal_editing
1853 }
1854
1855 fn selections_did_change(
1856 &mut self,
1857 local: bool,
1858 old_cursor_position: &Anchor,
1859 show_completions: bool,
1860 cx: &mut ViewContext<Self>,
1861 ) {
1862 cx.invalidate_character_coordinates();
1863
1864 // Copy selections to primary selection buffer
1865 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1866 if local {
1867 let selections = self.selections.all::<usize>(cx);
1868 let buffer_handle = self.buffer.read(cx).read(cx);
1869
1870 let mut text = String::new();
1871 for (index, selection) in selections.iter().enumerate() {
1872 let text_for_selection = buffer_handle
1873 .text_for_range(selection.start..selection.end)
1874 .collect::<String>();
1875
1876 text.push_str(&text_for_selection);
1877 if index != selections.len() - 1 {
1878 text.push('\n');
1879 }
1880 }
1881
1882 if !text.is_empty() {
1883 cx.write_to_primary(ClipboardItem::new_string(text));
1884 }
1885 }
1886
1887 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1888 self.buffer.update(cx, |buffer, cx| {
1889 buffer.set_active_selections(
1890 &self.selections.disjoint_anchors(),
1891 self.selections.line_mode,
1892 self.cursor_shape,
1893 cx,
1894 )
1895 });
1896 }
1897 let display_map = self
1898 .display_map
1899 .update(cx, |display_map, cx| display_map.snapshot(cx));
1900 let buffer = &display_map.buffer_snapshot;
1901 self.add_selections_state = None;
1902 self.select_next_state = None;
1903 self.select_prev_state = None;
1904 self.select_larger_syntax_node_stack.clear();
1905 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1906 self.snippet_stack
1907 .invalidate(&self.selections.disjoint_anchors(), buffer);
1908 self.take_rename(false, cx);
1909
1910 let new_cursor_position = self.selections.newest_anchor().head();
1911
1912 self.push_to_nav_history(
1913 *old_cursor_position,
1914 Some(new_cursor_position.to_point(buffer)),
1915 cx,
1916 );
1917
1918 if local {
1919 let new_cursor_position = self.selections.newest_anchor().head();
1920 let mut context_menu = self.context_menu.borrow_mut();
1921 let completion_menu = match context_menu.as_ref() {
1922 Some(CodeContextMenu::Completions(menu)) => Some(menu),
1923 _ => {
1924 *context_menu = None;
1925 None
1926 }
1927 };
1928
1929 if let Some(completion_menu) = completion_menu {
1930 let cursor_position = new_cursor_position.to_offset(buffer);
1931 let (word_range, kind) =
1932 buffer.surrounding_word(completion_menu.initial_position, true);
1933 if kind == Some(CharKind::Word)
1934 && word_range.to_inclusive().contains(&cursor_position)
1935 {
1936 let mut completion_menu = completion_menu.clone();
1937 drop(context_menu);
1938
1939 let query = Self::completion_query(buffer, cursor_position);
1940 cx.spawn(move |this, mut cx| async move {
1941 completion_menu
1942 .filter(query.as_deref(), cx.background_executor().clone())
1943 .await;
1944
1945 this.update(&mut cx, |this, cx| {
1946 let mut context_menu = this.context_menu.borrow_mut();
1947 let Some(CodeContextMenu::Completions(menu)) = context_menu.as_ref()
1948 else {
1949 return;
1950 };
1951
1952 if menu.id > completion_menu.id {
1953 return;
1954 }
1955
1956 *context_menu = Some(CodeContextMenu::Completions(completion_menu));
1957 drop(context_menu);
1958 cx.notify();
1959 })
1960 })
1961 .detach();
1962
1963 if show_completions {
1964 self.show_completions(&ShowCompletions { trigger: None }, cx);
1965 }
1966 } else {
1967 drop(context_menu);
1968 self.hide_context_menu(cx);
1969 }
1970 } else {
1971 drop(context_menu);
1972 }
1973
1974 hide_hover(self, cx);
1975
1976 if old_cursor_position.to_display_point(&display_map).row()
1977 != new_cursor_position.to_display_point(&display_map).row()
1978 {
1979 self.available_code_actions.take();
1980 }
1981 self.refresh_code_actions(cx);
1982 self.refresh_document_highlights(cx);
1983 refresh_matching_bracket_highlights(self, cx);
1984 self.update_visible_inline_completion(cx);
1985 linked_editing_ranges::refresh_linked_ranges(self, cx);
1986 if self.git_blame_inline_enabled {
1987 self.start_inline_blame_timer(cx);
1988 }
1989 }
1990
1991 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1992 cx.emit(EditorEvent::SelectionsChanged { local });
1993
1994 if self.selections.disjoint_anchors().len() == 1 {
1995 cx.emit(SearchEvent::ActiveMatchChanged)
1996 }
1997 cx.notify();
1998 }
1999
2000 pub fn change_selections<R>(
2001 &mut self,
2002 autoscroll: Option<Autoscroll>,
2003 cx: &mut ViewContext<Self>,
2004 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2005 ) -> R {
2006 self.change_selections_inner(autoscroll, true, cx, change)
2007 }
2008
2009 pub fn change_selections_inner<R>(
2010 &mut self,
2011 autoscroll: Option<Autoscroll>,
2012 request_completions: bool,
2013 cx: &mut ViewContext<Self>,
2014 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2015 ) -> R {
2016 let old_cursor_position = self.selections.newest_anchor().head();
2017 self.push_to_selection_history();
2018
2019 let (changed, result) = self.selections.change_with(cx, change);
2020
2021 if changed {
2022 if let Some(autoscroll) = autoscroll {
2023 self.request_autoscroll(autoscroll, cx);
2024 }
2025 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2026
2027 if self.should_open_signature_help_automatically(
2028 &old_cursor_position,
2029 self.signature_help_state.backspace_pressed(),
2030 cx,
2031 ) {
2032 self.show_signature_help(&ShowSignatureHelp, cx);
2033 }
2034 self.signature_help_state.set_backspace_pressed(false);
2035 }
2036
2037 result
2038 }
2039
2040 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2041 where
2042 I: IntoIterator<Item = (Range<S>, T)>,
2043 S: ToOffset,
2044 T: Into<Arc<str>>,
2045 {
2046 if self.read_only(cx) {
2047 return;
2048 }
2049
2050 self.buffer
2051 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2052 }
2053
2054 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2055 where
2056 I: IntoIterator<Item = (Range<S>, T)>,
2057 S: ToOffset,
2058 T: Into<Arc<str>>,
2059 {
2060 if self.read_only(cx) {
2061 return;
2062 }
2063
2064 self.buffer.update(cx, |buffer, cx| {
2065 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2066 });
2067 }
2068
2069 pub fn edit_with_block_indent<I, S, T>(
2070 &mut self,
2071 edits: I,
2072 original_indent_columns: Vec<u32>,
2073 cx: &mut ViewContext<Self>,
2074 ) where
2075 I: IntoIterator<Item = (Range<S>, T)>,
2076 S: ToOffset,
2077 T: Into<Arc<str>>,
2078 {
2079 if self.read_only(cx) {
2080 return;
2081 }
2082
2083 self.buffer.update(cx, |buffer, cx| {
2084 buffer.edit(
2085 edits,
2086 Some(AutoindentMode::Block {
2087 original_indent_columns,
2088 }),
2089 cx,
2090 )
2091 });
2092 }
2093
2094 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2095 self.hide_context_menu(cx);
2096
2097 match phase {
2098 SelectPhase::Begin {
2099 position,
2100 add,
2101 click_count,
2102 } => self.begin_selection(position, add, click_count, cx),
2103 SelectPhase::BeginColumnar {
2104 position,
2105 goal_column,
2106 reset,
2107 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2108 SelectPhase::Extend {
2109 position,
2110 click_count,
2111 } => self.extend_selection(position, click_count, cx),
2112 SelectPhase::Update {
2113 position,
2114 goal_column,
2115 scroll_delta,
2116 } => self.update_selection(position, goal_column, scroll_delta, cx),
2117 SelectPhase::End => self.end_selection(cx),
2118 }
2119 }
2120
2121 fn extend_selection(
2122 &mut self,
2123 position: DisplayPoint,
2124 click_count: usize,
2125 cx: &mut ViewContext<Self>,
2126 ) {
2127 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2128 let tail = self.selections.newest::<usize>(cx).tail();
2129 self.begin_selection(position, false, click_count, cx);
2130
2131 let position = position.to_offset(&display_map, Bias::Left);
2132 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2133
2134 let mut pending_selection = self
2135 .selections
2136 .pending_anchor()
2137 .expect("extend_selection not called with pending selection");
2138 if position >= tail {
2139 pending_selection.start = tail_anchor;
2140 } else {
2141 pending_selection.end = tail_anchor;
2142 pending_selection.reversed = true;
2143 }
2144
2145 let mut pending_mode = self.selections.pending_mode().unwrap();
2146 match &mut pending_mode {
2147 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2148 _ => {}
2149 }
2150
2151 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2152 s.set_pending(pending_selection, pending_mode)
2153 });
2154 }
2155
2156 fn begin_selection(
2157 &mut self,
2158 position: DisplayPoint,
2159 add: bool,
2160 click_count: usize,
2161 cx: &mut ViewContext<Self>,
2162 ) {
2163 if !self.focus_handle.is_focused(cx) {
2164 self.last_focused_descendant = None;
2165 cx.focus(&self.focus_handle);
2166 }
2167
2168 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2169 let buffer = &display_map.buffer_snapshot;
2170 let newest_selection = self.selections.newest_anchor().clone();
2171 let position = display_map.clip_point(position, Bias::Left);
2172
2173 let start;
2174 let end;
2175 let mode;
2176 let mut auto_scroll;
2177 match click_count {
2178 1 => {
2179 start = buffer.anchor_before(position.to_point(&display_map));
2180 end = start;
2181 mode = SelectMode::Character;
2182 auto_scroll = true;
2183 }
2184 2 => {
2185 let range = movement::surrounding_word(&display_map, position);
2186 start = buffer.anchor_before(range.start.to_point(&display_map));
2187 end = buffer.anchor_before(range.end.to_point(&display_map));
2188 mode = SelectMode::Word(start..end);
2189 auto_scroll = true;
2190 }
2191 3 => {
2192 let position = display_map
2193 .clip_point(position, Bias::Left)
2194 .to_point(&display_map);
2195 let line_start = display_map.prev_line_boundary(position).0;
2196 let next_line_start = buffer.clip_point(
2197 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2198 Bias::Left,
2199 );
2200 start = buffer.anchor_before(line_start);
2201 end = buffer.anchor_before(next_line_start);
2202 mode = SelectMode::Line(start..end);
2203 auto_scroll = true;
2204 }
2205 _ => {
2206 start = buffer.anchor_before(0);
2207 end = buffer.anchor_before(buffer.len());
2208 mode = SelectMode::All;
2209 auto_scroll = false;
2210 }
2211 }
2212 auto_scroll &= EditorSettings::get_global(cx).autoscroll_on_clicks;
2213
2214 let point_to_delete: Option<usize> = {
2215 let selected_points: Vec<Selection<Point>> =
2216 self.selections.disjoint_in_range(start..end, cx);
2217
2218 if !add || click_count > 1 {
2219 None
2220 } else if !selected_points.is_empty() {
2221 Some(selected_points[0].id)
2222 } else {
2223 let clicked_point_already_selected =
2224 self.selections.disjoint.iter().find(|selection| {
2225 selection.start.to_point(buffer) == start.to_point(buffer)
2226 || selection.end.to_point(buffer) == end.to_point(buffer)
2227 });
2228
2229 clicked_point_already_selected.map(|selection| selection.id)
2230 }
2231 };
2232
2233 let selections_count = self.selections.count();
2234
2235 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2236 if let Some(point_to_delete) = point_to_delete {
2237 s.delete(point_to_delete);
2238
2239 if selections_count == 1 {
2240 s.set_pending_anchor_range(start..end, mode);
2241 }
2242 } else {
2243 if !add {
2244 s.clear_disjoint();
2245 } else if click_count > 1 {
2246 s.delete(newest_selection.id)
2247 }
2248
2249 s.set_pending_anchor_range(start..end, mode);
2250 }
2251 });
2252 }
2253
2254 fn begin_columnar_selection(
2255 &mut self,
2256 position: DisplayPoint,
2257 goal_column: u32,
2258 reset: bool,
2259 cx: &mut ViewContext<Self>,
2260 ) {
2261 if !self.focus_handle.is_focused(cx) {
2262 self.last_focused_descendant = None;
2263 cx.focus(&self.focus_handle);
2264 }
2265
2266 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2267
2268 if reset {
2269 let pointer_position = display_map
2270 .buffer_snapshot
2271 .anchor_before(position.to_point(&display_map));
2272
2273 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2274 s.clear_disjoint();
2275 s.set_pending_anchor_range(
2276 pointer_position..pointer_position,
2277 SelectMode::Character,
2278 );
2279 });
2280 }
2281
2282 let tail = self.selections.newest::<Point>(cx).tail();
2283 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2284
2285 if !reset {
2286 self.select_columns(
2287 tail.to_display_point(&display_map),
2288 position,
2289 goal_column,
2290 &display_map,
2291 cx,
2292 );
2293 }
2294 }
2295
2296 fn update_selection(
2297 &mut self,
2298 position: DisplayPoint,
2299 goal_column: u32,
2300 scroll_delta: gpui::Point<f32>,
2301 cx: &mut ViewContext<Self>,
2302 ) {
2303 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2304
2305 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2306 let tail = tail.to_display_point(&display_map);
2307 self.select_columns(tail, position, goal_column, &display_map, cx);
2308 } else if let Some(mut pending) = self.selections.pending_anchor() {
2309 let buffer = self.buffer.read(cx).snapshot(cx);
2310 let head;
2311 let tail;
2312 let mode = self.selections.pending_mode().unwrap();
2313 match &mode {
2314 SelectMode::Character => {
2315 head = position.to_point(&display_map);
2316 tail = pending.tail().to_point(&buffer);
2317 }
2318 SelectMode::Word(original_range) => {
2319 let original_display_range = original_range.start.to_display_point(&display_map)
2320 ..original_range.end.to_display_point(&display_map);
2321 let original_buffer_range = original_display_range.start.to_point(&display_map)
2322 ..original_display_range.end.to_point(&display_map);
2323 if movement::is_inside_word(&display_map, position)
2324 || original_display_range.contains(&position)
2325 {
2326 let word_range = movement::surrounding_word(&display_map, position);
2327 if word_range.start < original_display_range.start {
2328 head = word_range.start.to_point(&display_map);
2329 } else {
2330 head = word_range.end.to_point(&display_map);
2331 }
2332 } else {
2333 head = position.to_point(&display_map);
2334 }
2335
2336 if head <= original_buffer_range.start {
2337 tail = original_buffer_range.end;
2338 } else {
2339 tail = original_buffer_range.start;
2340 }
2341 }
2342 SelectMode::Line(original_range) => {
2343 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2344
2345 let position = display_map
2346 .clip_point(position, Bias::Left)
2347 .to_point(&display_map);
2348 let line_start = display_map.prev_line_boundary(position).0;
2349 let next_line_start = buffer.clip_point(
2350 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2351 Bias::Left,
2352 );
2353
2354 if line_start < original_range.start {
2355 head = line_start
2356 } else {
2357 head = next_line_start
2358 }
2359
2360 if head <= original_range.start {
2361 tail = original_range.end;
2362 } else {
2363 tail = original_range.start;
2364 }
2365 }
2366 SelectMode::All => {
2367 return;
2368 }
2369 };
2370
2371 if head < tail {
2372 pending.start = buffer.anchor_before(head);
2373 pending.end = buffer.anchor_before(tail);
2374 pending.reversed = true;
2375 } else {
2376 pending.start = buffer.anchor_before(tail);
2377 pending.end = buffer.anchor_before(head);
2378 pending.reversed = false;
2379 }
2380
2381 self.change_selections(None, cx, |s| {
2382 s.set_pending(pending, mode);
2383 });
2384 } else {
2385 log::error!("update_selection dispatched with no pending selection");
2386 return;
2387 }
2388
2389 self.apply_scroll_delta(scroll_delta, cx);
2390 cx.notify();
2391 }
2392
2393 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2394 self.columnar_selection_tail.take();
2395 if self.selections.pending_anchor().is_some() {
2396 let selections = self.selections.all::<usize>(cx);
2397 self.change_selections(None, cx, |s| {
2398 s.select(selections);
2399 s.clear_pending();
2400 });
2401 }
2402 }
2403
2404 fn select_columns(
2405 &mut self,
2406 tail: DisplayPoint,
2407 head: DisplayPoint,
2408 goal_column: u32,
2409 display_map: &DisplaySnapshot,
2410 cx: &mut ViewContext<Self>,
2411 ) {
2412 let start_row = cmp::min(tail.row(), head.row());
2413 let end_row = cmp::max(tail.row(), head.row());
2414 let start_column = cmp::min(tail.column(), goal_column);
2415 let end_column = cmp::max(tail.column(), goal_column);
2416 let reversed = start_column < tail.column();
2417
2418 let selection_ranges = (start_row.0..=end_row.0)
2419 .map(DisplayRow)
2420 .filter_map(|row| {
2421 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2422 let start = display_map
2423 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2424 .to_point(display_map);
2425 let end = display_map
2426 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2427 .to_point(display_map);
2428 if reversed {
2429 Some(end..start)
2430 } else {
2431 Some(start..end)
2432 }
2433 } else {
2434 None
2435 }
2436 })
2437 .collect::<Vec<_>>();
2438
2439 self.change_selections(None, cx, |s| {
2440 s.select_ranges(selection_ranges);
2441 });
2442 cx.notify();
2443 }
2444
2445 pub fn has_pending_nonempty_selection(&self) -> bool {
2446 let pending_nonempty_selection = match self.selections.pending_anchor() {
2447 Some(Selection { start, end, .. }) => start != end,
2448 None => false,
2449 };
2450
2451 pending_nonempty_selection
2452 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2453 }
2454
2455 pub fn has_pending_selection(&self) -> bool {
2456 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2457 }
2458
2459 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2460 if self.clear_expanded_diff_hunks(cx) {
2461 cx.notify();
2462 return;
2463 }
2464 if self.dismiss_menus_and_popups(true, cx) {
2465 return;
2466 }
2467
2468 if self.mode == EditorMode::Full
2469 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
2470 {
2471 return;
2472 }
2473
2474 cx.propagate();
2475 }
2476
2477 pub fn dismiss_menus_and_popups(
2478 &mut self,
2479 should_report_inline_completion_event: bool,
2480 cx: &mut ViewContext<Self>,
2481 ) -> bool {
2482 if self.take_rename(false, cx).is_some() {
2483 return true;
2484 }
2485
2486 if hide_hover(self, cx) {
2487 return true;
2488 }
2489
2490 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2491 return true;
2492 }
2493
2494 if self.hide_context_menu(cx).is_some() {
2495 if self.show_inline_completions_in_menu(cx) && self.has_active_inline_completion() {
2496 self.update_visible_inline_completion(cx);
2497 }
2498 return true;
2499 }
2500
2501 if self.mouse_context_menu.take().is_some() {
2502 return true;
2503 }
2504
2505 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2506 return true;
2507 }
2508
2509 if self.snippet_stack.pop().is_some() {
2510 return true;
2511 }
2512
2513 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
2514 self.dismiss_diagnostics(cx);
2515 return true;
2516 }
2517
2518 false
2519 }
2520
2521 fn linked_editing_ranges_for(
2522 &self,
2523 selection: Range<text::Anchor>,
2524 cx: &AppContext,
2525 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2526 if self.linked_edit_ranges.is_empty() {
2527 return None;
2528 }
2529 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2530 selection.end.buffer_id.and_then(|end_buffer_id| {
2531 if selection.start.buffer_id != Some(end_buffer_id) {
2532 return None;
2533 }
2534 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2535 let snapshot = buffer.read(cx).snapshot();
2536 self.linked_edit_ranges
2537 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2538 .map(|ranges| (ranges, snapshot, buffer))
2539 })?;
2540 use text::ToOffset as TO;
2541 // find offset from the start of current range to current cursor position
2542 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2543
2544 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2545 let start_difference = start_offset - start_byte_offset;
2546 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2547 let end_difference = end_offset - start_byte_offset;
2548 // Current range has associated linked ranges.
2549 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2550 for range in linked_ranges.iter() {
2551 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2552 let end_offset = start_offset + end_difference;
2553 let start_offset = start_offset + start_difference;
2554 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2555 continue;
2556 }
2557 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
2558 if s.start.buffer_id != selection.start.buffer_id
2559 || s.end.buffer_id != selection.end.buffer_id
2560 {
2561 return false;
2562 }
2563 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
2564 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
2565 }) {
2566 continue;
2567 }
2568 let start = buffer_snapshot.anchor_after(start_offset);
2569 let end = buffer_snapshot.anchor_after(end_offset);
2570 linked_edits
2571 .entry(buffer.clone())
2572 .or_default()
2573 .push(start..end);
2574 }
2575 Some(linked_edits)
2576 }
2577
2578 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2579 let text: Arc<str> = text.into();
2580
2581 if self.read_only(cx) {
2582 return;
2583 }
2584
2585 let selections = self.selections.all_adjusted(cx);
2586 let mut bracket_inserted = false;
2587 let mut edits = Vec::new();
2588 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2589 let mut new_selections = Vec::with_capacity(selections.len());
2590 let mut new_autoclose_regions = Vec::new();
2591 let snapshot = self.buffer.read(cx).read(cx);
2592
2593 for (selection, autoclose_region) in
2594 self.selections_with_autoclose_regions(selections, &snapshot)
2595 {
2596 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2597 // Determine if the inserted text matches the opening or closing
2598 // bracket of any of this language's bracket pairs.
2599 let mut bracket_pair = None;
2600 let mut is_bracket_pair_start = false;
2601 let mut is_bracket_pair_end = false;
2602 if !text.is_empty() {
2603 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2604 // and they are removing the character that triggered IME popup.
2605 for (pair, enabled) in scope.brackets() {
2606 if !pair.close && !pair.surround {
2607 continue;
2608 }
2609
2610 if enabled && pair.start.ends_with(text.as_ref()) {
2611 let prefix_len = pair.start.len() - text.len();
2612 let preceding_text_matches_prefix = prefix_len == 0
2613 || (selection.start.column >= (prefix_len as u32)
2614 && snapshot.contains_str_at(
2615 Point::new(
2616 selection.start.row,
2617 selection.start.column - (prefix_len as u32),
2618 ),
2619 &pair.start[..prefix_len],
2620 ));
2621 if preceding_text_matches_prefix {
2622 bracket_pair = Some(pair.clone());
2623 is_bracket_pair_start = true;
2624 break;
2625 }
2626 }
2627 if pair.end.as_str() == text.as_ref() {
2628 bracket_pair = Some(pair.clone());
2629 is_bracket_pair_end = true;
2630 break;
2631 }
2632 }
2633 }
2634
2635 if let Some(bracket_pair) = bracket_pair {
2636 let snapshot_settings = snapshot.settings_at(selection.start, cx);
2637 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
2638 let auto_surround =
2639 self.use_auto_surround && snapshot_settings.use_auto_surround;
2640 if selection.is_empty() {
2641 if is_bracket_pair_start {
2642 // If the inserted text is a suffix of an opening bracket and the
2643 // selection is preceded by the rest of the opening bracket, then
2644 // insert the closing bracket.
2645 let following_text_allows_autoclose = snapshot
2646 .chars_at(selection.start)
2647 .next()
2648 .map_or(true, |c| scope.should_autoclose_before(c));
2649
2650 let is_closing_quote = if bracket_pair.end == bracket_pair.start
2651 && bracket_pair.start.len() == 1
2652 {
2653 let target = bracket_pair.start.chars().next().unwrap();
2654 let current_line_count = snapshot
2655 .reversed_chars_at(selection.start)
2656 .take_while(|&c| c != '\n')
2657 .filter(|&c| c == target)
2658 .count();
2659 current_line_count % 2 == 1
2660 } else {
2661 false
2662 };
2663
2664 if autoclose
2665 && bracket_pair.close
2666 && following_text_allows_autoclose
2667 && !is_closing_quote
2668 {
2669 let anchor = snapshot.anchor_before(selection.end);
2670 new_selections.push((selection.map(|_| anchor), text.len()));
2671 new_autoclose_regions.push((
2672 anchor,
2673 text.len(),
2674 selection.id,
2675 bracket_pair.clone(),
2676 ));
2677 edits.push((
2678 selection.range(),
2679 format!("{}{}", text, bracket_pair.end).into(),
2680 ));
2681 bracket_inserted = true;
2682 continue;
2683 }
2684 }
2685
2686 if let Some(region) = autoclose_region {
2687 // If the selection is followed by an auto-inserted closing bracket,
2688 // then don't insert that closing bracket again; just move the selection
2689 // past the closing bracket.
2690 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2691 && text.as_ref() == region.pair.end.as_str();
2692 if should_skip {
2693 let anchor = snapshot.anchor_after(selection.end);
2694 new_selections
2695 .push((selection.map(|_| anchor), region.pair.end.len()));
2696 continue;
2697 }
2698 }
2699
2700 let always_treat_brackets_as_autoclosed = snapshot
2701 .settings_at(selection.start, cx)
2702 .always_treat_brackets_as_autoclosed;
2703 if always_treat_brackets_as_autoclosed
2704 && is_bracket_pair_end
2705 && snapshot.contains_str_at(selection.end, text.as_ref())
2706 {
2707 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2708 // and the inserted text is a closing bracket and the selection is followed
2709 // by the closing bracket then move the selection past the closing bracket.
2710 let anchor = snapshot.anchor_after(selection.end);
2711 new_selections.push((selection.map(|_| anchor), text.len()));
2712 continue;
2713 }
2714 }
2715 // If an opening bracket is 1 character long and is typed while
2716 // text is selected, then surround that text with the bracket pair.
2717 else if auto_surround
2718 && bracket_pair.surround
2719 && is_bracket_pair_start
2720 && bracket_pair.start.chars().count() == 1
2721 {
2722 edits.push((selection.start..selection.start, text.clone()));
2723 edits.push((
2724 selection.end..selection.end,
2725 bracket_pair.end.as_str().into(),
2726 ));
2727 bracket_inserted = true;
2728 new_selections.push((
2729 Selection {
2730 id: selection.id,
2731 start: snapshot.anchor_after(selection.start),
2732 end: snapshot.anchor_before(selection.end),
2733 reversed: selection.reversed,
2734 goal: selection.goal,
2735 },
2736 0,
2737 ));
2738 continue;
2739 }
2740 }
2741 }
2742
2743 if self.auto_replace_emoji_shortcode
2744 && selection.is_empty()
2745 && text.as_ref().ends_with(':')
2746 {
2747 if let Some(possible_emoji_short_code) =
2748 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2749 {
2750 if !possible_emoji_short_code.is_empty() {
2751 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2752 let emoji_shortcode_start = Point::new(
2753 selection.start.row,
2754 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2755 );
2756
2757 // Remove shortcode from buffer
2758 edits.push((
2759 emoji_shortcode_start..selection.start,
2760 "".to_string().into(),
2761 ));
2762 new_selections.push((
2763 Selection {
2764 id: selection.id,
2765 start: snapshot.anchor_after(emoji_shortcode_start),
2766 end: snapshot.anchor_before(selection.start),
2767 reversed: selection.reversed,
2768 goal: selection.goal,
2769 },
2770 0,
2771 ));
2772
2773 // Insert emoji
2774 let selection_start_anchor = snapshot.anchor_after(selection.start);
2775 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2776 edits.push((selection.start..selection.end, emoji.to_string().into()));
2777
2778 continue;
2779 }
2780 }
2781 }
2782 }
2783
2784 // If not handling any auto-close operation, then just replace the selected
2785 // text with the given input and move the selection to the end of the
2786 // newly inserted text.
2787 let anchor = snapshot.anchor_after(selection.end);
2788 if !self.linked_edit_ranges.is_empty() {
2789 let start_anchor = snapshot.anchor_before(selection.start);
2790
2791 let is_word_char = text.chars().next().map_or(true, |char| {
2792 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
2793 classifier.is_word(char)
2794 });
2795
2796 if is_word_char {
2797 if let Some(ranges) = self
2798 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
2799 {
2800 for (buffer, edits) in ranges {
2801 linked_edits
2802 .entry(buffer.clone())
2803 .or_default()
2804 .extend(edits.into_iter().map(|range| (range, text.clone())));
2805 }
2806 }
2807 }
2808 }
2809
2810 new_selections.push((selection.map(|_| anchor), 0));
2811 edits.push((selection.start..selection.end, text.clone()));
2812 }
2813
2814 drop(snapshot);
2815
2816 self.transact(cx, |this, cx| {
2817 this.buffer.update(cx, |buffer, cx| {
2818 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2819 });
2820 for (buffer, edits) in linked_edits {
2821 buffer.update(cx, |buffer, cx| {
2822 let snapshot = buffer.snapshot();
2823 let edits = edits
2824 .into_iter()
2825 .map(|(range, text)| {
2826 use text::ToPoint as TP;
2827 let end_point = TP::to_point(&range.end, &snapshot);
2828 let start_point = TP::to_point(&range.start, &snapshot);
2829 (start_point..end_point, text)
2830 })
2831 .sorted_by_key(|(range, _)| range.start)
2832 .collect::<Vec<_>>();
2833 buffer.edit(edits, None, cx);
2834 })
2835 }
2836 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2837 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2838 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
2839 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
2840 .zip(new_selection_deltas)
2841 .map(|(selection, delta)| Selection {
2842 id: selection.id,
2843 start: selection.start + delta,
2844 end: selection.end + delta,
2845 reversed: selection.reversed,
2846 goal: SelectionGoal::None,
2847 })
2848 .collect::<Vec<_>>();
2849
2850 let mut i = 0;
2851 for (position, delta, selection_id, pair) in new_autoclose_regions {
2852 let position = position.to_offset(&map.buffer_snapshot) + delta;
2853 let start = map.buffer_snapshot.anchor_before(position);
2854 let end = map.buffer_snapshot.anchor_after(position);
2855 while let Some(existing_state) = this.autoclose_regions.get(i) {
2856 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
2857 Ordering::Less => i += 1,
2858 Ordering::Greater => break,
2859 Ordering::Equal => {
2860 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
2861 Ordering::Less => i += 1,
2862 Ordering::Equal => break,
2863 Ordering::Greater => break,
2864 }
2865 }
2866 }
2867 }
2868 this.autoclose_regions.insert(
2869 i,
2870 AutocloseRegion {
2871 selection_id,
2872 range: start..end,
2873 pair,
2874 },
2875 );
2876 }
2877
2878 let had_active_inline_completion = this.has_active_inline_completion();
2879 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
2880 s.select(new_selections)
2881 });
2882
2883 if !bracket_inserted {
2884 if let Some(on_type_format_task) =
2885 this.trigger_on_type_formatting(text.to_string(), cx)
2886 {
2887 on_type_format_task.detach_and_log_err(cx);
2888 }
2889 }
2890
2891 let editor_settings = EditorSettings::get_global(cx);
2892 if bracket_inserted
2893 && (editor_settings.auto_signature_help
2894 || editor_settings.show_signature_help_after_edits)
2895 {
2896 this.show_signature_help(&ShowSignatureHelp, cx);
2897 }
2898
2899 let trigger_in_words =
2900 this.show_inline_completions_in_menu(cx) || !had_active_inline_completion;
2901 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2902 linked_editing_ranges::refresh_linked_ranges(this, cx);
2903 this.refresh_inline_completion(true, false, cx);
2904 });
2905 }
2906
2907 fn find_possible_emoji_shortcode_at_position(
2908 snapshot: &MultiBufferSnapshot,
2909 position: Point,
2910 ) -> Option<String> {
2911 let mut chars = Vec::new();
2912 let mut found_colon = false;
2913 for char in snapshot.reversed_chars_at(position).take(100) {
2914 // Found a possible emoji shortcode in the middle of the buffer
2915 if found_colon {
2916 if char.is_whitespace() {
2917 chars.reverse();
2918 return Some(chars.iter().collect());
2919 }
2920 // If the previous character is not a whitespace, we are in the middle of a word
2921 // and we only want to complete the shortcode if the word is made up of other emojis
2922 let mut containing_word = String::new();
2923 for ch in snapshot
2924 .reversed_chars_at(position)
2925 .skip(chars.len() + 1)
2926 .take(100)
2927 {
2928 if ch.is_whitespace() {
2929 break;
2930 }
2931 containing_word.push(ch);
2932 }
2933 let containing_word = containing_word.chars().rev().collect::<String>();
2934 if util::word_consists_of_emojis(containing_word.as_str()) {
2935 chars.reverse();
2936 return Some(chars.iter().collect());
2937 }
2938 }
2939
2940 if char.is_whitespace() || !char.is_ascii() {
2941 return None;
2942 }
2943 if char == ':' {
2944 found_colon = true;
2945 } else {
2946 chars.push(char);
2947 }
2948 }
2949 // Found a possible emoji shortcode at the beginning of the buffer
2950 chars.reverse();
2951 Some(chars.iter().collect())
2952 }
2953
2954 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2955 self.transact(cx, |this, cx| {
2956 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2957 let selections = this.selections.all::<usize>(cx);
2958 let multi_buffer = this.buffer.read(cx);
2959 let buffer = multi_buffer.snapshot(cx);
2960 selections
2961 .iter()
2962 .map(|selection| {
2963 let start_point = selection.start.to_point(&buffer);
2964 let mut indent =
2965 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
2966 indent.len = cmp::min(indent.len, start_point.column);
2967 let start = selection.start;
2968 let end = selection.end;
2969 let selection_is_empty = start == end;
2970 let language_scope = buffer.language_scope_at(start);
2971 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2972 &language_scope
2973 {
2974 let leading_whitespace_len = buffer
2975 .reversed_chars_at(start)
2976 .take_while(|c| c.is_whitespace() && *c != '\n')
2977 .map(|c| c.len_utf8())
2978 .sum::<usize>();
2979
2980 let trailing_whitespace_len = buffer
2981 .chars_at(end)
2982 .take_while(|c| c.is_whitespace() && *c != '\n')
2983 .map(|c| c.len_utf8())
2984 .sum::<usize>();
2985
2986 let insert_extra_newline =
2987 language.brackets().any(|(pair, enabled)| {
2988 let pair_start = pair.start.trim_end();
2989 let pair_end = pair.end.trim_start();
2990
2991 enabled
2992 && pair.newline
2993 && buffer.contains_str_at(
2994 end + trailing_whitespace_len,
2995 pair_end,
2996 )
2997 && buffer.contains_str_at(
2998 (start - leading_whitespace_len)
2999 .saturating_sub(pair_start.len()),
3000 pair_start,
3001 )
3002 });
3003
3004 // Comment extension on newline is allowed only for cursor selections
3005 let comment_delimiter = maybe!({
3006 if !selection_is_empty {
3007 return None;
3008 }
3009
3010 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3011 return None;
3012 }
3013
3014 let delimiters = language.line_comment_prefixes();
3015 let max_len_of_delimiter =
3016 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3017 let (snapshot, range) =
3018 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3019
3020 let mut index_of_first_non_whitespace = 0;
3021 let comment_candidate = snapshot
3022 .chars_for_range(range)
3023 .skip_while(|c| {
3024 let should_skip = c.is_whitespace();
3025 if should_skip {
3026 index_of_first_non_whitespace += 1;
3027 }
3028 should_skip
3029 })
3030 .take(max_len_of_delimiter)
3031 .collect::<String>();
3032 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3033 comment_candidate.starts_with(comment_prefix.as_ref())
3034 })?;
3035 let cursor_is_placed_after_comment_marker =
3036 index_of_first_non_whitespace + comment_prefix.len()
3037 <= start_point.column as usize;
3038 if cursor_is_placed_after_comment_marker {
3039 Some(comment_prefix.clone())
3040 } else {
3041 None
3042 }
3043 });
3044 (comment_delimiter, insert_extra_newline)
3045 } else {
3046 (None, false)
3047 };
3048
3049 let capacity_for_delimiter = comment_delimiter
3050 .as_deref()
3051 .map(str::len)
3052 .unwrap_or_default();
3053 let mut new_text =
3054 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3055 new_text.push('\n');
3056 new_text.extend(indent.chars());
3057 if let Some(delimiter) = &comment_delimiter {
3058 new_text.push_str(delimiter);
3059 }
3060 if insert_extra_newline {
3061 new_text = new_text.repeat(2);
3062 }
3063
3064 let anchor = buffer.anchor_after(end);
3065 let new_selection = selection.map(|_| anchor);
3066 (
3067 (start..end, new_text),
3068 (insert_extra_newline, new_selection),
3069 )
3070 })
3071 .unzip()
3072 };
3073
3074 this.edit_with_autoindent(edits, cx);
3075 let buffer = this.buffer.read(cx).snapshot(cx);
3076 let new_selections = selection_fixup_info
3077 .into_iter()
3078 .map(|(extra_newline_inserted, new_selection)| {
3079 let mut cursor = new_selection.end.to_point(&buffer);
3080 if extra_newline_inserted {
3081 cursor.row -= 1;
3082 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3083 }
3084 new_selection.map(|_| cursor)
3085 })
3086 .collect();
3087
3088 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3089 this.refresh_inline_completion(true, false, cx);
3090 });
3091 }
3092
3093 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3094 let buffer = self.buffer.read(cx);
3095 let snapshot = buffer.snapshot(cx);
3096
3097 let mut edits = Vec::new();
3098 let mut rows = Vec::new();
3099
3100 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3101 let cursor = selection.head();
3102 let row = cursor.row;
3103
3104 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3105
3106 let newline = "\n".to_string();
3107 edits.push((start_of_line..start_of_line, newline));
3108
3109 rows.push(row + rows_inserted as u32);
3110 }
3111
3112 self.transact(cx, |editor, cx| {
3113 editor.edit(edits, cx);
3114
3115 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3116 let mut index = 0;
3117 s.move_cursors_with(|map, _, _| {
3118 let row = rows[index];
3119 index += 1;
3120
3121 let point = Point::new(row, 0);
3122 let boundary = map.next_line_boundary(point).1;
3123 let clipped = map.clip_point(boundary, Bias::Left);
3124
3125 (clipped, SelectionGoal::None)
3126 });
3127 });
3128
3129 let mut indent_edits = Vec::new();
3130 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3131 for row in rows {
3132 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3133 for (row, indent) in indents {
3134 if indent.len == 0 {
3135 continue;
3136 }
3137
3138 let text = match indent.kind {
3139 IndentKind::Space => " ".repeat(indent.len as usize),
3140 IndentKind::Tab => "\t".repeat(indent.len as usize),
3141 };
3142 let point = Point::new(row.0, 0);
3143 indent_edits.push((point..point, text));
3144 }
3145 }
3146 editor.edit(indent_edits, cx);
3147 });
3148 }
3149
3150 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3151 let buffer = self.buffer.read(cx);
3152 let snapshot = buffer.snapshot(cx);
3153
3154 let mut edits = Vec::new();
3155 let mut rows = Vec::new();
3156 let mut rows_inserted = 0;
3157
3158 for selection in self.selections.all_adjusted(cx) {
3159 let cursor = selection.head();
3160 let row = cursor.row;
3161
3162 let point = Point::new(row + 1, 0);
3163 let start_of_line = snapshot.clip_point(point, Bias::Left);
3164
3165 let newline = "\n".to_string();
3166 edits.push((start_of_line..start_of_line, newline));
3167
3168 rows_inserted += 1;
3169 rows.push(row + rows_inserted);
3170 }
3171
3172 self.transact(cx, |editor, cx| {
3173 editor.edit(edits, cx);
3174
3175 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3176 let mut index = 0;
3177 s.move_cursors_with(|map, _, _| {
3178 let row = rows[index];
3179 index += 1;
3180
3181 let point = Point::new(row, 0);
3182 let boundary = map.next_line_boundary(point).1;
3183 let clipped = map.clip_point(boundary, Bias::Left);
3184
3185 (clipped, SelectionGoal::None)
3186 });
3187 });
3188
3189 let mut indent_edits = Vec::new();
3190 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3191 for row in rows {
3192 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3193 for (row, indent) in indents {
3194 if indent.len == 0 {
3195 continue;
3196 }
3197
3198 let text = match indent.kind {
3199 IndentKind::Space => " ".repeat(indent.len as usize),
3200 IndentKind::Tab => "\t".repeat(indent.len as usize),
3201 };
3202 let point = Point::new(row.0, 0);
3203 indent_edits.push((point..point, text));
3204 }
3205 }
3206 editor.edit(indent_edits, cx);
3207 });
3208 }
3209
3210 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3211 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3212 original_indent_columns: Vec::new(),
3213 });
3214 self.insert_with_autoindent_mode(text, autoindent, cx);
3215 }
3216
3217 fn insert_with_autoindent_mode(
3218 &mut self,
3219 text: &str,
3220 autoindent_mode: Option<AutoindentMode>,
3221 cx: &mut ViewContext<Self>,
3222 ) {
3223 if self.read_only(cx) {
3224 return;
3225 }
3226
3227 let text: Arc<str> = text.into();
3228 self.transact(cx, |this, cx| {
3229 let old_selections = this.selections.all_adjusted(cx);
3230 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3231 let anchors = {
3232 let snapshot = buffer.read(cx);
3233 old_selections
3234 .iter()
3235 .map(|s| {
3236 let anchor = snapshot.anchor_after(s.head());
3237 s.map(|_| anchor)
3238 })
3239 .collect::<Vec<_>>()
3240 };
3241 buffer.edit(
3242 old_selections
3243 .iter()
3244 .map(|s| (s.start..s.end, text.clone())),
3245 autoindent_mode,
3246 cx,
3247 );
3248 anchors
3249 });
3250
3251 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3252 s.select_anchors(selection_anchors);
3253 })
3254 });
3255 }
3256
3257 fn trigger_completion_on_input(
3258 &mut self,
3259 text: &str,
3260 trigger_in_words: bool,
3261 cx: &mut ViewContext<Self>,
3262 ) {
3263 if self.is_completion_trigger(text, trigger_in_words, cx) {
3264 self.show_completions(
3265 &ShowCompletions {
3266 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3267 },
3268 cx,
3269 );
3270 } else {
3271 self.hide_context_menu(cx);
3272 }
3273 }
3274
3275 fn is_completion_trigger(
3276 &self,
3277 text: &str,
3278 trigger_in_words: bool,
3279 cx: &mut ViewContext<Self>,
3280 ) -> bool {
3281 let position = self.selections.newest_anchor().head();
3282 let multibuffer = self.buffer.read(cx);
3283 let Some(buffer) = position
3284 .buffer_id
3285 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3286 else {
3287 return false;
3288 };
3289
3290 if let Some(completion_provider) = &self.completion_provider {
3291 completion_provider.is_completion_trigger(
3292 &buffer,
3293 position.text_anchor,
3294 text,
3295 trigger_in_words,
3296 cx,
3297 )
3298 } else {
3299 false
3300 }
3301 }
3302
3303 /// If any empty selections is touching the start of its innermost containing autoclose
3304 /// region, expand it to select the brackets.
3305 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3306 let selections = self.selections.all::<usize>(cx);
3307 let buffer = self.buffer.read(cx).read(cx);
3308 let new_selections = self
3309 .selections_with_autoclose_regions(selections, &buffer)
3310 .map(|(mut selection, region)| {
3311 if !selection.is_empty() {
3312 return selection;
3313 }
3314
3315 if let Some(region) = region {
3316 let mut range = region.range.to_offset(&buffer);
3317 if selection.start == range.start && range.start >= region.pair.start.len() {
3318 range.start -= region.pair.start.len();
3319 if buffer.contains_str_at(range.start, ®ion.pair.start)
3320 && buffer.contains_str_at(range.end, ®ion.pair.end)
3321 {
3322 range.end += region.pair.end.len();
3323 selection.start = range.start;
3324 selection.end = range.end;
3325
3326 return selection;
3327 }
3328 }
3329 }
3330
3331 let always_treat_brackets_as_autoclosed = buffer
3332 .settings_at(selection.start, cx)
3333 .always_treat_brackets_as_autoclosed;
3334
3335 if !always_treat_brackets_as_autoclosed {
3336 return selection;
3337 }
3338
3339 if let Some(scope) = buffer.language_scope_at(selection.start) {
3340 for (pair, enabled) in scope.brackets() {
3341 if !enabled || !pair.close {
3342 continue;
3343 }
3344
3345 if buffer.contains_str_at(selection.start, &pair.end) {
3346 let pair_start_len = pair.start.len();
3347 if buffer.contains_str_at(
3348 selection.start.saturating_sub(pair_start_len),
3349 &pair.start,
3350 ) {
3351 selection.start -= pair_start_len;
3352 selection.end += pair.end.len();
3353
3354 return selection;
3355 }
3356 }
3357 }
3358 }
3359
3360 selection
3361 })
3362 .collect();
3363
3364 drop(buffer);
3365 self.change_selections(None, cx, |selections| selections.select(new_selections));
3366 }
3367
3368 /// Iterate the given selections, and for each one, find the smallest surrounding
3369 /// autoclose region. This uses the ordering of the selections and the autoclose
3370 /// regions to avoid repeated comparisons.
3371 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3372 &'a self,
3373 selections: impl IntoIterator<Item = Selection<D>>,
3374 buffer: &'a MultiBufferSnapshot,
3375 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3376 let mut i = 0;
3377 let mut regions = self.autoclose_regions.as_slice();
3378 selections.into_iter().map(move |selection| {
3379 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3380
3381 let mut enclosing = None;
3382 while let Some(pair_state) = regions.get(i) {
3383 if pair_state.range.end.to_offset(buffer) < range.start {
3384 regions = ®ions[i + 1..];
3385 i = 0;
3386 } else if pair_state.range.start.to_offset(buffer) > range.end {
3387 break;
3388 } else {
3389 if pair_state.selection_id == selection.id {
3390 enclosing = Some(pair_state);
3391 }
3392 i += 1;
3393 }
3394 }
3395
3396 (selection, enclosing)
3397 })
3398 }
3399
3400 /// Remove any autoclose regions that no longer contain their selection.
3401 fn invalidate_autoclose_regions(
3402 &mut self,
3403 mut selections: &[Selection<Anchor>],
3404 buffer: &MultiBufferSnapshot,
3405 ) {
3406 self.autoclose_regions.retain(|state| {
3407 let mut i = 0;
3408 while let Some(selection) = selections.get(i) {
3409 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3410 selections = &selections[1..];
3411 continue;
3412 }
3413 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3414 break;
3415 }
3416 if selection.id == state.selection_id {
3417 return true;
3418 } else {
3419 i += 1;
3420 }
3421 }
3422 false
3423 });
3424 }
3425
3426 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3427 let offset = position.to_offset(buffer);
3428 let (word_range, kind) = buffer.surrounding_word(offset, true);
3429 if offset > word_range.start && kind == Some(CharKind::Word) {
3430 Some(
3431 buffer
3432 .text_for_range(word_range.start..offset)
3433 .collect::<String>(),
3434 )
3435 } else {
3436 None
3437 }
3438 }
3439
3440 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3441 self.refresh_inlay_hints(
3442 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3443 cx,
3444 );
3445 }
3446
3447 pub fn inlay_hints_enabled(&self) -> bool {
3448 self.inlay_hint_cache.enabled
3449 }
3450
3451 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3452 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
3453 return;
3454 }
3455
3456 let reason_description = reason.description();
3457 let ignore_debounce = matches!(
3458 reason,
3459 InlayHintRefreshReason::SettingsChange(_)
3460 | InlayHintRefreshReason::Toggle(_)
3461 | InlayHintRefreshReason::ExcerptsRemoved(_)
3462 );
3463 let (invalidate_cache, required_languages) = match reason {
3464 InlayHintRefreshReason::Toggle(enabled) => {
3465 self.inlay_hint_cache.enabled = enabled;
3466 if enabled {
3467 (InvalidationStrategy::RefreshRequested, None)
3468 } else {
3469 self.inlay_hint_cache.clear();
3470 self.splice_inlays(
3471 self.visible_inlay_hints(cx)
3472 .iter()
3473 .map(|inlay| inlay.id)
3474 .collect(),
3475 Vec::new(),
3476 cx,
3477 );
3478 return;
3479 }
3480 }
3481 InlayHintRefreshReason::SettingsChange(new_settings) => {
3482 match self.inlay_hint_cache.update_settings(
3483 &self.buffer,
3484 new_settings,
3485 self.visible_inlay_hints(cx),
3486 cx,
3487 ) {
3488 ControlFlow::Break(Some(InlaySplice {
3489 to_remove,
3490 to_insert,
3491 })) => {
3492 self.splice_inlays(to_remove, to_insert, cx);
3493 return;
3494 }
3495 ControlFlow::Break(None) => return,
3496 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3497 }
3498 }
3499 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3500 if let Some(InlaySplice {
3501 to_remove,
3502 to_insert,
3503 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3504 {
3505 self.splice_inlays(to_remove, to_insert, cx);
3506 }
3507 return;
3508 }
3509 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3510 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3511 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3512 }
3513 InlayHintRefreshReason::RefreshRequested => {
3514 (InvalidationStrategy::RefreshRequested, None)
3515 }
3516 };
3517
3518 if let Some(InlaySplice {
3519 to_remove,
3520 to_insert,
3521 }) = self.inlay_hint_cache.spawn_hint_refresh(
3522 reason_description,
3523 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3524 invalidate_cache,
3525 ignore_debounce,
3526 cx,
3527 ) {
3528 self.splice_inlays(to_remove, to_insert, cx);
3529 }
3530 }
3531
3532 fn visible_inlay_hints(&self, cx: &ViewContext<Editor>) -> Vec<Inlay> {
3533 self.display_map
3534 .read(cx)
3535 .current_inlays()
3536 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3537 .cloned()
3538 .collect()
3539 }
3540
3541 pub fn excerpts_for_inlay_hints_query(
3542 &self,
3543 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3544 cx: &mut ViewContext<Editor>,
3545 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3546 let Some(project) = self.project.as_ref() else {
3547 return HashMap::default();
3548 };
3549 let project = project.read(cx);
3550 let multi_buffer = self.buffer().read(cx);
3551 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3552 let multi_buffer_visible_start = self
3553 .scroll_manager
3554 .anchor()
3555 .anchor
3556 .to_point(&multi_buffer_snapshot);
3557 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3558 multi_buffer_visible_start
3559 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3560 Bias::Left,
3561 );
3562 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3563 multi_buffer_snapshot
3564 .range_to_buffer_ranges(multi_buffer_visible_range)
3565 .into_iter()
3566 .filter(|(_, excerpt_visible_range)| !excerpt_visible_range.is_empty())
3567 .filter_map(|(excerpt, excerpt_visible_range)| {
3568 let buffer_file = project::File::from_dyn(excerpt.buffer().file())?;
3569 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3570 let worktree_entry = buffer_worktree
3571 .read(cx)
3572 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3573 if worktree_entry.is_ignored {
3574 return None;
3575 }
3576
3577 let language = excerpt.buffer().language()?;
3578 if let Some(restrict_to_languages) = restrict_to_languages {
3579 if !restrict_to_languages.contains(language) {
3580 return None;
3581 }
3582 }
3583 Some((
3584 excerpt.id(),
3585 (
3586 multi_buffer.buffer(excerpt.buffer_id()).unwrap(),
3587 excerpt.buffer().version().clone(),
3588 excerpt_visible_range,
3589 ),
3590 ))
3591 })
3592 .collect()
3593 }
3594
3595 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3596 TextLayoutDetails {
3597 text_system: cx.text_system().clone(),
3598 editor_style: self.style.clone().unwrap(),
3599 rem_size: cx.rem_size(),
3600 scroll_anchor: self.scroll_manager.anchor(),
3601 visible_rows: self.visible_line_count(),
3602 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3603 }
3604 }
3605
3606 pub fn splice_inlays(
3607 &self,
3608 to_remove: Vec<InlayId>,
3609 to_insert: Vec<Inlay>,
3610 cx: &mut ViewContext<Self>,
3611 ) {
3612 self.display_map.update(cx, |display_map, cx| {
3613 display_map.splice_inlays(to_remove, to_insert, cx)
3614 });
3615 cx.notify();
3616 }
3617
3618 fn trigger_on_type_formatting(
3619 &self,
3620 input: String,
3621 cx: &mut ViewContext<Self>,
3622 ) -> Option<Task<Result<()>>> {
3623 if input.len() != 1 {
3624 return None;
3625 }
3626
3627 let project = self.project.as_ref()?;
3628 let position = self.selections.newest_anchor().head();
3629 let (buffer, buffer_position) = self
3630 .buffer
3631 .read(cx)
3632 .text_anchor_for_position(position, cx)?;
3633
3634 let settings = language_settings::language_settings(
3635 buffer
3636 .read(cx)
3637 .language_at(buffer_position)
3638 .map(|l| l.name()),
3639 buffer.read(cx).file(),
3640 cx,
3641 );
3642 if !settings.use_on_type_format {
3643 return None;
3644 }
3645
3646 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3647 // hence we do LSP request & edit on host side only — add formats to host's history.
3648 let push_to_lsp_host_history = true;
3649 // If this is not the host, append its history with new edits.
3650 let push_to_client_history = project.read(cx).is_via_collab();
3651
3652 let on_type_formatting = project.update(cx, |project, cx| {
3653 project.on_type_format(
3654 buffer.clone(),
3655 buffer_position,
3656 input,
3657 push_to_lsp_host_history,
3658 cx,
3659 )
3660 });
3661 Some(cx.spawn(|editor, mut cx| async move {
3662 if let Some(transaction) = on_type_formatting.await? {
3663 if push_to_client_history {
3664 buffer
3665 .update(&mut cx, |buffer, _| {
3666 buffer.push_transaction(transaction, Instant::now());
3667 })
3668 .ok();
3669 }
3670 editor.update(&mut cx, |editor, cx| {
3671 editor.refresh_document_highlights(cx);
3672 })?;
3673 }
3674 Ok(())
3675 }))
3676 }
3677
3678 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
3679 if self.pending_rename.is_some() {
3680 return;
3681 }
3682
3683 let Some(provider) = self.completion_provider.as_ref() else {
3684 return;
3685 };
3686
3687 if !self.snippet_stack.is_empty() && self.context_menu.borrow().as_ref().is_some() {
3688 return;
3689 }
3690
3691 let position = self.selections.newest_anchor().head();
3692 let (buffer, buffer_position) =
3693 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3694 output
3695 } else {
3696 return;
3697 };
3698 let show_completion_documentation = buffer
3699 .read(cx)
3700 .snapshot()
3701 .settings_at(buffer_position, cx)
3702 .show_completion_documentation;
3703
3704 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3705
3706 let trigger_kind = match &options.trigger {
3707 Some(trigger) if buffer.read(cx).completion_triggers().contains(trigger) => {
3708 CompletionTriggerKind::TRIGGER_CHARACTER
3709 }
3710 _ => CompletionTriggerKind::INVOKED,
3711 };
3712 let completion_context = CompletionContext {
3713 trigger_character: options.trigger.as_ref().and_then(|trigger| {
3714 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
3715 Some(String::from(trigger))
3716 } else {
3717 None
3718 }
3719 }),
3720 trigger_kind,
3721 };
3722 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
3723 let sort_completions = provider.sort_completions();
3724
3725 let id = post_inc(&mut self.next_completion_id);
3726 let task = cx.spawn(|editor, mut cx| {
3727 async move {
3728 editor.update(&mut cx, |this, _| {
3729 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3730 })?;
3731 let completions = completions.await.log_err();
3732 let menu = if let Some(completions) = completions {
3733 let mut menu = CompletionsMenu::new(
3734 id,
3735 sort_completions,
3736 show_completion_documentation,
3737 position,
3738 buffer.clone(),
3739 completions.into(),
3740 );
3741
3742 menu.filter(query.as_deref(), cx.background_executor().clone())
3743 .await;
3744
3745 menu.visible().then_some(menu)
3746 } else {
3747 None
3748 };
3749
3750 editor.update(&mut cx, |editor, cx| {
3751 match editor.context_menu.borrow().as_ref() {
3752 None => {}
3753 Some(CodeContextMenu::Completions(prev_menu)) => {
3754 if prev_menu.id > id {
3755 return;
3756 }
3757 }
3758 _ => return,
3759 }
3760
3761 if editor.focus_handle.is_focused(cx) && menu.is_some() {
3762 let mut menu = menu.unwrap();
3763 menu.resolve_visible_completions(editor.completion_provider.as_deref(), cx);
3764
3765 if editor.show_inline_completions_in_menu(cx) {
3766 if let Some(hint) = editor.inline_completion_menu_hint(cx) {
3767 menu.show_inline_completion_hint(hint);
3768 }
3769 } else {
3770 editor.discard_inline_completion(false, cx);
3771 }
3772
3773 *editor.context_menu.borrow_mut() =
3774 Some(CodeContextMenu::Completions(menu));
3775
3776 cx.notify();
3777 } else if editor.completion_tasks.len() <= 1 {
3778 // If there are no more completion tasks and the last menu was
3779 // empty, we should hide it.
3780 let was_hidden = editor.hide_context_menu(cx).is_none();
3781 // If it was already hidden and we don't show inline
3782 // completions in the menu, we should also show the
3783 // inline-completion when available.
3784 if was_hidden && editor.show_inline_completions_in_menu(cx) {
3785 editor.update_visible_inline_completion(cx);
3786 }
3787 }
3788 })?;
3789
3790 Ok::<_, anyhow::Error>(())
3791 }
3792 .log_err()
3793 });
3794
3795 self.completion_tasks.push((id, task));
3796 }
3797
3798 pub fn confirm_completion(
3799 &mut self,
3800 action: &ConfirmCompletion,
3801 cx: &mut ViewContext<Self>,
3802 ) -> Option<Task<Result<()>>> {
3803 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
3804 }
3805
3806 pub fn compose_completion(
3807 &mut self,
3808 action: &ComposeCompletion,
3809 cx: &mut ViewContext<Self>,
3810 ) -> Option<Task<Result<()>>> {
3811 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
3812 }
3813
3814 fn do_completion(
3815 &mut self,
3816 item_ix: Option<usize>,
3817 intent: CompletionIntent,
3818 cx: &mut ViewContext<Editor>,
3819 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
3820 use language::ToOffset as _;
3821
3822 let completions_menu =
3823 if let CodeContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3824 menu
3825 } else {
3826 return None;
3827 };
3828
3829 let entries = completions_menu.entries.borrow();
3830 let mat = entries.get(item_ix.unwrap_or(completions_menu.selected_item))?;
3831 let mat = match mat {
3832 CompletionEntry::InlineCompletionHint { .. } => {
3833 self.accept_inline_completion(&AcceptInlineCompletion, cx);
3834 cx.stop_propagation();
3835 return Some(Task::ready(Ok(())));
3836 }
3837 CompletionEntry::Match(mat) => {
3838 if self.show_inline_completions_in_menu(cx) {
3839 self.discard_inline_completion(true, cx);
3840 }
3841 mat
3842 }
3843 };
3844 let candidate_id = mat.candidate_id;
3845 drop(entries);
3846
3847 let buffer_handle = completions_menu.buffer;
3848 let completion = completions_menu
3849 .completions
3850 .borrow()
3851 .get(candidate_id)?
3852 .clone();
3853 cx.stop_propagation();
3854
3855 let snippet;
3856 let text;
3857
3858 if completion.is_snippet() {
3859 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3860 text = snippet.as_ref().unwrap().text.clone();
3861 } else {
3862 snippet = None;
3863 text = completion.new_text.clone();
3864 };
3865 let selections = self.selections.all::<usize>(cx);
3866 let buffer = buffer_handle.read(cx);
3867 let old_range = completion.old_range.to_offset(buffer);
3868 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3869
3870 let newest_selection = self.selections.newest_anchor();
3871 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3872 return None;
3873 }
3874
3875 let lookbehind = newest_selection
3876 .start
3877 .text_anchor
3878 .to_offset(buffer)
3879 .saturating_sub(old_range.start);
3880 let lookahead = old_range
3881 .end
3882 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3883 let mut common_prefix_len = old_text
3884 .bytes()
3885 .zip(text.bytes())
3886 .take_while(|(a, b)| a == b)
3887 .count();
3888
3889 let snapshot = self.buffer.read(cx).snapshot(cx);
3890 let mut range_to_replace: Option<Range<isize>> = None;
3891 let mut ranges = Vec::new();
3892 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3893 for selection in &selections {
3894 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3895 let start = selection.start.saturating_sub(lookbehind);
3896 let end = selection.end + lookahead;
3897 if selection.id == newest_selection.id {
3898 range_to_replace = Some(
3899 ((start + common_prefix_len) as isize - selection.start as isize)
3900 ..(end as isize - selection.start as isize),
3901 );
3902 }
3903 ranges.push(start + common_prefix_len..end);
3904 } else {
3905 common_prefix_len = 0;
3906 ranges.clear();
3907 ranges.extend(selections.iter().map(|s| {
3908 if s.id == newest_selection.id {
3909 range_to_replace = Some(
3910 old_range.start.to_offset_utf16(&snapshot).0 as isize
3911 - selection.start as isize
3912 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3913 - selection.start as isize,
3914 );
3915 old_range.clone()
3916 } else {
3917 s.start..s.end
3918 }
3919 }));
3920 break;
3921 }
3922 if !self.linked_edit_ranges.is_empty() {
3923 let start_anchor = snapshot.anchor_before(selection.head());
3924 let end_anchor = snapshot.anchor_after(selection.tail());
3925 if let Some(ranges) = self
3926 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
3927 {
3928 for (buffer, edits) in ranges {
3929 linked_edits.entry(buffer.clone()).or_default().extend(
3930 edits
3931 .into_iter()
3932 .map(|range| (range, text[common_prefix_len..].to_owned())),
3933 );
3934 }
3935 }
3936 }
3937 }
3938 let text = &text[common_prefix_len..];
3939
3940 cx.emit(EditorEvent::InputHandled {
3941 utf16_range_to_replace: range_to_replace,
3942 text: text.into(),
3943 });
3944
3945 self.transact(cx, |this, cx| {
3946 if let Some(mut snippet) = snippet {
3947 snippet.text = text.to_string();
3948 for tabstop in snippet
3949 .tabstops
3950 .iter_mut()
3951 .flat_map(|tabstop| tabstop.ranges.iter_mut())
3952 {
3953 tabstop.start -= common_prefix_len as isize;
3954 tabstop.end -= common_prefix_len as isize;
3955 }
3956
3957 this.insert_snippet(&ranges, snippet, cx).log_err();
3958 } else {
3959 this.buffer.update(cx, |buffer, cx| {
3960 buffer.edit(
3961 ranges.iter().map(|range| (range.clone(), text)),
3962 this.autoindent_mode.clone(),
3963 cx,
3964 );
3965 });
3966 }
3967 for (buffer, edits) in linked_edits {
3968 buffer.update(cx, |buffer, cx| {
3969 let snapshot = buffer.snapshot();
3970 let edits = edits
3971 .into_iter()
3972 .map(|(range, text)| {
3973 use text::ToPoint as TP;
3974 let end_point = TP::to_point(&range.end, &snapshot);
3975 let start_point = TP::to_point(&range.start, &snapshot);
3976 (start_point..end_point, text)
3977 })
3978 .sorted_by_key(|(range, _)| range.start)
3979 .collect::<Vec<_>>();
3980 buffer.edit(edits, None, cx);
3981 })
3982 }
3983
3984 this.refresh_inline_completion(true, false, cx);
3985 });
3986
3987 let show_new_completions_on_confirm = completion
3988 .confirm
3989 .as_ref()
3990 .map_or(false, |confirm| confirm(intent, cx));
3991 if show_new_completions_on_confirm {
3992 self.show_completions(&ShowCompletions { trigger: None }, cx);
3993 }
3994
3995 let provider = self.completion_provider.as_ref()?;
3996 drop(completion);
3997 let apply_edits = provider.apply_additional_edits_for_completion(
3998 buffer_handle,
3999 completions_menu.completions.clone(),
4000 candidate_id,
4001 true,
4002 cx,
4003 );
4004
4005 let editor_settings = EditorSettings::get_global(cx);
4006 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4007 // After the code completion is finished, users often want to know what signatures are needed.
4008 // so we should automatically call signature_help
4009 self.show_signature_help(&ShowSignatureHelp, cx);
4010 }
4011
4012 Some(cx.foreground_executor().spawn(async move {
4013 apply_edits.await?;
4014 Ok(())
4015 }))
4016 }
4017
4018 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4019 let mut context_menu = self.context_menu.borrow_mut();
4020 if let Some(CodeContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4021 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4022 // Toggle if we're selecting the same one
4023 *context_menu = None;
4024 cx.notify();
4025 return;
4026 } else {
4027 // Otherwise, clear it and start a new one
4028 *context_menu = None;
4029 cx.notify();
4030 }
4031 }
4032 drop(context_menu);
4033 let snapshot = self.snapshot(cx);
4034 let deployed_from_indicator = action.deployed_from_indicator;
4035 let mut task = self.code_actions_task.take();
4036 let action = action.clone();
4037 cx.spawn(|editor, mut cx| async move {
4038 while let Some(prev_task) = task {
4039 prev_task.await.log_err();
4040 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4041 }
4042
4043 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4044 if editor.focus_handle.is_focused(cx) {
4045 let multibuffer_point = action
4046 .deployed_from_indicator
4047 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4048 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4049 let (buffer, buffer_row) = snapshot
4050 .buffer_snapshot
4051 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4052 .and_then(|(buffer_snapshot, range)| {
4053 editor
4054 .buffer
4055 .read(cx)
4056 .buffer(buffer_snapshot.remote_id())
4057 .map(|buffer| (buffer, range.start.row))
4058 })?;
4059 let (_, code_actions) = editor
4060 .available_code_actions
4061 .clone()
4062 .and_then(|(location, code_actions)| {
4063 let snapshot = location.buffer.read(cx).snapshot();
4064 let point_range = location.range.to_point(&snapshot);
4065 let point_range = point_range.start.row..=point_range.end.row;
4066 if point_range.contains(&buffer_row) {
4067 Some((location, code_actions))
4068 } else {
4069 None
4070 }
4071 })
4072 .unzip();
4073 let buffer_id = buffer.read(cx).remote_id();
4074 let tasks = editor
4075 .tasks
4076 .get(&(buffer_id, buffer_row))
4077 .map(|t| Arc::new(t.to_owned()));
4078 if tasks.is_none() && code_actions.is_none() {
4079 return None;
4080 }
4081
4082 editor.completion_tasks.clear();
4083 editor.discard_inline_completion(false, cx);
4084 let task_context =
4085 tasks
4086 .as_ref()
4087 .zip(editor.project.clone())
4088 .map(|(tasks, project)| {
4089 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4090 });
4091
4092 Some(cx.spawn(|editor, mut cx| async move {
4093 let task_context = match task_context {
4094 Some(task_context) => task_context.await,
4095 None => None,
4096 };
4097 let resolved_tasks =
4098 tasks.zip(task_context).map(|(tasks, task_context)| {
4099 Rc::new(ResolvedTasks {
4100 templates: tasks.resolve(&task_context).collect(),
4101 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4102 multibuffer_point.row,
4103 tasks.column,
4104 )),
4105 })
4106 });
4107 let spawn_straight_away = resolved_tasks
4108 .as_ref()
4109 .map_or(false, |tasks| tasks.templates.len() == 1)
4110 && code_actions
4111 .as_ref()
4112 .map_or(true, |actions| actions.is_empty());
4113 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4114 *editor.context_menu.borrow_mut() =
4115 Some(CodeContextMenu::CodeActions(CodeActionsMenu {
4116 buffer,
4117 actions: CodeActionContents {
4118 tasks: resolved_tasks,
4119 actions: code_actions,
4120 },
4121 selected_item: Default::default(),
4122 scroll_handle: UniformListScrollHandle::default(),
4123 deployed_from_indicator,
4124 }));
4125 if spawn_straight_away {
4126 if let Some(task) = editor.confirm_code_action(
4127 &ConfirmCodeAction { item_ix: Some(0) },
4128 cx,
4129 ) {
4130 cx.notify();
4131 return task;
4132 }
4133 }
4134 cx.notify();
4135 Task::ready(Ok(()))
4136 }) {
4137 task.await
4138 } else {
4139 Ok(())
4140 }
4141 }))
4142 } else {
4143 Some(Task::ready(Ok(())))
4144 }
4145 })?;
4146 if let Some(task) = spawned_test_task {
4147 task.await?;
4148 }
4149
4150 Ok::<_, anyhow::Error>(())
4151 })
4152 .detach_and_log_err(cx);
4153 }
4154
4155 pub fn confirm_code_action(
4156 &mut self,
4157 action: &ConfirmCodeAction,
4158 cx: &mut ViewContext<Self>,
4159 ) -> Option<Task<Result<()>>> {
4160 let actions_menu = if let CodeContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4161 menu
4162 } else {
4163 return None;
4164 };
4165 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4166 let action = actions_menu.actions.get(action_ix)?;
4167 let title = action.label();
4168 let buffer = actions_menu.buffer;
4169 let workspace = self.workspace()?;
4170
4171 match action {
4172 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4173 workspace.update(cx, |workspace, cx| {
4174 workspace::tasks::schedule_resolved_task(
4175 workspace,
4176 task_source_kind,
4177 resolved_task,
4178 false,
4179 cx,
4180 );
4181
4182 Some(Task::ready(Ok(())))
4183 })
4184 }
4185 CodeActionsItem::CodeAction {
4186 excerpt_id,
4187 action,
4188 provider,
4189 } => {
4190 let apply_code_action =
4191 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4192 let workspace = workspace.downgrade();
4193 Some(cx.spawn(|editor, cx| async move {
4194 let project_transaction = apply_code_action.await?;
4195 Self::open_project_transaction(
4196 &editor,
4197 workspace,
4198 project_transaction,
4199 title,
4200 cx,
4201 )
4202 .await
4203 }))
4204 }
4205 }
4206 }
4207
4208 pub async fn open_project_transaction(
4209 this: &WeakView<Editor>,
4210 workspace: WeakView<Workspace>,
4211 transaction: ProjectTransaction,
4212 title: String,
4213 mut cx: AsyncWindowContext,
4214 ) -> Result<()> {
4215 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4216 cx.update(|cx| {
4217 entries.sort_unstable_by_key(|(buffer, _)| {
4218 buffer.read(cx).file().map(|f| f.path().clone())
4219 });
4220 })?;
4221
4222 // If the project transaction's edits are all contained within this editor, then
4223 // avoid opening a new editor to display them.
4224
4225 if let Some((buffer, transaction)) = entries.first() {
4226 if entries.len() == 1 {
4227 let excerpt = this.update(&mut cx, |editor, cx| {
4228 editor
4229 .buffer()
4230 .read(cx)
4231 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4232 })?;
4233 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4234 if excerpted_buffer == *buffer {
4235 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4236 let excerpt_range = excerpt_range.to_offset(buffer);
4237 buffer
4238 .edited_ranges_for_transaction::<usize>(transaction)
4239 .all(|range| {
4240 excerpt_range.start <= range.start
4241 && excerpt_range.end >= range.end
4242 })
4243 })?;
4244
4245 if all_edits_within_excerpt {
4246 return Ok(());
4247 }
4248 }
4249 }
4250 }
4251 } else {
4252 return Ok(());
4253 }
4254
4255 let mut ranges_to_highlight = Vec::new();
4256 let excerpt_buffer = cx.new_model(|cx| {
4257 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4258 for (buffer_handle, transaction) in &entries {
4259 let buffer = buffer_handle.read(cx);
4260 ranges_to_highlight.extend(
4261 multibuffer.push_excerpts_with_context_lines(
4262 buffer_handle.clone(),
4263 buffer
4264 .edited_ranges_for_transaction::<usize>(transaction)
4265 .collect(),
4266 DEFAULT_MULTIBUFFER_CONTEXT,
4267 cx,
4268 ),
4269 );
4270 }
4271 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4272 multibuffer
4273 })?;
4274
4275 workspace.update(&mut cx, |workspace, cx| {
4276 let project = workspace.project().clone();
4277 let editor =
4278 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4279 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4280 editor.update(cx, |editor, cx| {
4281 editor.highlight_background::<Self>(
4282 &ranges_to_highlight,
4283 |theme| theme.editor_highlighted_line_background,
4284 cx,
4285 );
4286 });
4287 })?;
4288
4289 Ok(())
4290 }
4291
4292 pub fn clear_code_action_providers(&mut self) {
4293 self.code_action_providers.clear();
4294 self.available_code_actions.take();
4295 }
4296
4297 pub fn push_code_action_provider(
4298 &mut self,
4299 provider: Rc<dyn CodeActionProvider>,
4300 cx: &mut ViewContext<Self>,
4301 ) {
4302 self.code_action_providers.push(provider);
4303 self.refresh_code_actions(cx);
4304 }
4305
4306 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4307 let buffer = self.buffer.read(cx);
4308 let newest_selection = self.selections.newest_anchor().clone();
4309 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4310 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4311 if start_buffer != end_buffer {
4312 return None;
4313 }
4314
4315 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4316 cx.background_executor()
4317 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4318 .await;
4319
4320 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4321 let providers = this.code_action_providers.clone();
4322 let tasks = this
4323 .code_action_providers
4324 .iter()
4325 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4326 .collect::<Vec<_>>();
4327 (providers, tasks)
4328 })?;
4329
4330 let mut actions = Vec::new();
4331 for (provider, provider_actions) in
4332 providers.into_iter().zip(future::join_all(tasks).await)
4333 {
4334 if let Some(provider_actions) = provider_actions.log_err() {
4335 actions.extend(provider_actions.into_iter().map(|action| {
4336 AvailableCodeAction {
4337 excerpt_id: newest_selection.start.excerpt_id,
4338 action,
4339 provider: provider.clone(),
4340 }
4341 }));
4342 }
4343 }
4344
4345 this.update(&mut cx, |this, cx| {
4346 this.available_code_actions = if actions.is_empty() {
4347 None
4348 } else {
4349 Some((
4350 Location {
4351 buffer: start_buffer,
4352 range: start..end,
4353 },
4354 actions.into(),
4355 ))
4356 };
4357 cx.notify();
4358 })
4359 }));
4360 None
4361 }
4362
4363 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4364 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4365 self.show_git_blame_inline = false;
4366
4367 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4368 cx.background_executor().timer(delay).await;
4369
4370 this.update(&mut cx, |this, cx| {
4371 this.show_git_blame_inline = true;
4372 cx.notify();
4373 })
4374 .log_err();
4375 }));
4376 }
4377 }
4378
4379 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4380 if self.pending_rename.is_some() {
4381 return None;
4382 }
4383
4384 let provider = self.semantics_provider.clone()?;
4385 let buffer = self.buffer.read(cx);
4386 let newest_selection = self.selections.newest_anchor().clone();
4387 let cursor_position = newest_selection.head();
4388 let (cursor_buffer, cursor_buffer_position) =
4389 buffer.text_anchor_for_position(cursor_position, cx)?;
4390 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4391 if cursor_buffer != tail_buffer {
4392 return None;
4393 }
4394 let debounce = EditorSettings::get_global(cx).lsp_highlight_debounce;
4395 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4396 cx.background_executor()
4397 .timer(Duration::from_millis(debounce))
4398 .await;
4399
4400 let highlights = if let Some(highlights) = cx
4401 .update(|cx| {
4402 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4403 })
4404 .ok()
4405 .flatten()
4406 {
4407 highlights.await.log_err()
4408 } else {
4409 None
4410 };
4411
4412 if let Some(highlights) = highlights {
4413 this.update(&mut cx, |this, cx| {
4414 if this.pending_rename.is_some() {
4415 return;
4416 }
4417
4418 let buffer_id = cursor_position.buffer_id;
4419 let buffer = this.buffer.read(cx);
4420 if !buffer
4421 .text_anchor_for_position(cursor_position, cx)
4422 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4423 {
4424 return;
4425 }
4426
4427 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4428 let mut write_ranges = Vec::new();
4429 let mut read_ranges = Vec::new();
4430 for highlight in highlights {
4431 for (excerpt_id, excerpt_range) in
4432 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4433 {
4434 let start = highlight
4435 .range
4436 .start
4437 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4438 let end = highlight
4439 .range
4440 .end
4441 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4442 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4443 continue;
4444 }
4445
4446 let range = Anchor {
4447 buffer_id,
4448 excerpt_id,
4449 text_anchor: start,
4450 }..Anchor {
4451 buffer_id,
4452 excerpt_id,
4453 text_anchor: end,
4454 };
4455 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4456 write_ranges.push(range);
4457 } else {
4458 read_ranges.push(range);
4459 }
4460 }
4461 }
4462
4463 this.highlight_background::<DocumentHighlightRead>(
4464 &read_ranges,
4465 |theme| theme.editor_document_highlight_read_background,
4466 cx,
4467 );
4468 this.highlight_background::<DocumentHighlightWrite>(
4469 &write_ranges,
4470 |theme| theme.editor_document_highlight_write_background,
4471 cx,
4472 );
4473 cx.notify();
4474 })
4475 .log_err();
4476 }
4477 }));
4478 None
4479 }
4480
4481 pub fn refresh_inline_completion(
4482 &mut self,
4483 debounce: bool,
4484 user_requested: bool,
4485 cx: &mut ViewContext<Self>,
4486 ) -> Option<()> {
4487 let provider = self.inline_completion_provider()?;
4488 let cursor = self.selections.newest_anchor().head();
4489 let (buffer, cursor_buffer_position) =
4490 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4491
4492 if !user_requested
4493 && (!self.enable_inline_completions
4494 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4495 || !self.is_focused(cx))
4496 {
4497 self.discard_inline_completion(false, cx);
4498 return None;
4499 }
4500
4501 self.update_visible_inline_completion(cx);
4502 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4503 Some(())
4504 }
4505
4506 fn cycle_inline_completion(
4507 &mut self,
4508 direction: Direction,
4509 cx: &mut ViewContext<Self>,
4510 ) -> Option<()> {
4511 let provider = self.inline_completion_provider()?;
4512 let cursor = self.selections.newest_anchor().head();
4513 let (buffer, cursor_buffer_position) =
4514 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4515 if !self.enable_inline_completions
4516 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4517 {
4518 return None;
4519 }
4520
4521 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4522 self.update_visible_inline_completion(cx);
4523
4524 Some(())
4525 }
4526
4527 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4528 if !self.has_active_inline_completion() {
4529 self.refresh_inline_completion(false, true, cx);
4530 return;
4531 }
4532
4533 self.update_visible_inline_completion(cx);
4534 }
4535
4536 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4537 self.show_cursor_names(cx);
4538 }
4539
4540 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4541 self.show_cursor_names = true;
4542 cx.notify();
4543 cx.spawn(|this, mut cx| async move {
4544 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4545 this.update(&mut cx, |this, cx| {
4546 this.show_cursor_names = false;
4547 cx.notify()
4548 })
4549 .ok()
4550 })
4551 .detach();
4552 }
4553
4554 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4555 if self.has_active_inline_completion() {
4556 self.cycle_inline_completion(Direction::Next, cx);
4557 } else {
4558 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4559 if is_copilot_disabled {
4560 cx.propagate();
4561 }
4562 }
4563 }
4564
4565 pub fn previous_inline_completion(
4566 &mut self,
4567 _: &PreviousInlineCompletion,
4568 cx: &mut ViewContext<Self>,
4569 ) {
4570 if self.has_active_inline_completion() {
4571 self.cycle_inline_completion(Direction::Prev, cx);
4572 } else {
4573 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4574 if is_copilot_disabled {
4575 cx.propagate();
4576 }
4577 }
4578 }
4579
4580 pub fn accept_inline_completion(
4581 &mut self,
4582 _: &AcceptInlineCompletion,
4583 cx: &mut ViewContext<Self>,
4584 ) {
4585 let buffer = self.buffer.read(cx);
4586 let snapshot = buffer.snapshot(cx);
4587 let selection = self.selections.newest_adjusted(cx);
4588 let cursor = selection.head();
4589 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
4590 let suggested_indents = snapshot.suggested_indents([cursor.row], cx);
4591 if let Some(suggested_indent) = suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
4592 {
4593 if cursor.column < suggested_indent.len
4594 && cursor.column <= current_indent.len
4595 && current_indent.len <= suggested_indent.len
4596 {
4597 self.tab(&Default::default(), cx);
4598 return;
4599 }
4600 }
4601
4602 if self.show_inline_completions_in_menu(cx) {
4603 self.hide_context_menu(cx);
4604 }
4605
4606 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4607 return;
4608 };
4609
4610 self.report_inline_completion_event(true, cx);
4611
4612 match &active_inline_completion.completion {
4613 InlineCompletion::Move(position) => {
4614 let position = *position;
4615 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4616 selections.select_anchor_ranges([position..position]);
4617 });
4618 }
4619 InlineCompletion::Edit(edits) => {
4620 if let Some(provider) = self.inline_completion_provider() {
4621 provider.accept(cx);
4622 }
4623
4624 let snapshot = self.buffer.read(cx).snapshot(cx);
4625 let last_edit_end = edits.last().unwrap().0.end.bias_right(&snapshot);
4626
4627 self.buffer.update(cx, |buffer, cx| {
4628 buffer.edit(edits.iter().cloned(), None, cx)
4629 });
4630
4631 self.change_selections(None, cx, |s| {
4632 s.select_anchor_ranges([last_edit_end..last_edit_end])
4633 });
4634
4635 self.update_visible_inline_completion(cx);
4636 if self.active_inline_completion.is_none() {
4637 self.refresh_inline_completion(true, true, cx);
4638 }
4639
4640 cx.notify();
4641 }
4642 }
4643 }
4644
4645 pub fn accept_partial_inline_completion(
4646 &mut self,
4647 _: &AcceptPartialInlineCompletion,
4648 cx: &mut ViewContext<Self>,
4649 ) {
4650 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4651 return;
4652 };
4653 if self.selections.count() != 1 {
4654 return;
4655 }
4656
4657 self.report_inline_completion_event(true, cx);
4658
4659 match &active_inline_completion.completion {
4660 InlineCompletion::Move(position) => {
4661 let position = *position;
4662 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4663 selections.select_anchor_ranges([position..position]);
4664 });
4665 }
4666 InlineCompletion::Edit(edits) => {
4667 if edits.len() == 1 && edits[0].0.start == edits[0].0.end {
4668 let text = edits[0].1.as_str();
4669 let mut partial_completion = text
4670 .chars()
4671 .by_ref()
4672 .take_while(|c| c.is_alphabetic())
4673 .collect::<String>();
4674 if partial_completion.is_empty() {
4675 partial_completion = text
4676 .chars()
4677 .by_ref()
4678 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4679 .collect::<String>();
4680 }
4681
4682 cx.emit(EditorEvent::InputHandled {
4683 utf16_range_to_replace: None,
4684 text: partial_completion.clone().into(),
4685 });
4686
4687 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4688
4689 self.refresh_inline_completion(true, true, cx);
4690 cx.notify();
4691 }
4692 }
4693 }
4694 }
4695
4696 fn discard_inline_completion(
4697 &mut self,
4698 should_report_inline_completion_event: bool,
4699 cx: &mut ViewContext<Self>,
4700 ) -> bool {
4701 if should_report_inline_completion_event {
4702 self.report_inline_completion_event(false, cx);
4703 }
4704
4705 if let Some(provider) = self.inline_completion_provider() {
4706 provider.discard(cx);
4707 }
4708
4709 self.take_active_inline_completion(cx).is_some()
4710 }
4711
4712 fn report_inline_completion_event(&self, accepted: bool, cx: &AppContext) {
4713 let Some(provider) = self.inline_completion_provider() else {
4714 return;
4715 };
4716 let Some(project) = self.project.as_ref() else {
4717 return;
4718 };
4719 let Some((_, buffer, _)) = self
4720 .buffer
4721 .read(cx)
4722 .excerpt_containing(self.selections.newest_anchor().head(), cx)
4723 else {
4724 return;
4725 };
4726
4727 let project = project.read(cx);
4728 let extension = buffer
4729 .read(cx)
4730 .file()
4731 .and_then(|file| Some(file.path().extension()?.to_string_lossy().to_string()));
4732 project.client().telemetry().report_inline_completion_event(
4733 provider.name().into(),
4734 accepted,
4735 extension,
4736 );
4737 }
4738
4739 pub fn has_active_inline_completion(&self) -> bool {
4740 self.active_inline_completion.is_some()
4741 }
4742
4743 fn take_active_inline_completion(
4744 &mut self,
4745 cx: &mut ViewContext<Self>,
4746 ) -> Option<InlineCompletion> {
4747 let active_inline_completion = self.active_inline_completion.take()?;
4748 self.splice_inlays(active_inline_completion.inlay_ids, Default::default(), cx);
4749 self.clear_highlights::<InlineCompletionHighlight>(cx);
4750 Some(active_inline_completion.completion)
4751 }
4752
4753 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4754 let selection = self.selections.newest_anchor();
4755 let cursor = selection.head();
4756 let multibuffer = self.buffer.read(cx).snapshot(cx);
4757 let offset_selection = selection.map(|endpoint| endpoint.to_offset(&multibuffer));
4758 let excerpt_id = cursor.excerpt_id;
4759
4760 let completions_menu_has_precedence = !self.show_inline_completions_in_menu(cx)
4761 && (self.context_menu.borrow().is_some()
4762 || (!self.completion_tasks.is_empty() && !self.has_active_inline_completion()));
4763 if completions_menu_has_precedence
4764 || !offset_selection.is_empty()
4765 || self
4766 .active_inline_completion
4767 .as_ref()
4768 .map_or(false, |completion| {
4769 let invalidation_range = completion.invalidation_range.to_offset(&multibuffer);
4770 let invalidation_range = invalidation_range.start..=invalidation_range.end;
4771 !invalidation_range.contains(&offset_selection.head())
4772 })
4773 {
4774 self.discard_inline_completion(false, cx);
4775 return None;
4776 }
4777
4778 self.take_active_inline_completion(cx);
4779 let provider = self.inline_completion_provider()?;
4780
4781 let (buffer, cursor_buffer_position) =
4782 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4783
4784 let completion = provider.suggest(&buffer, cursor_buffer_position, cx)?;
4785 let edits = completion
4786 .edits
4787 .into_iter()
4788 .flat_map(|(range, new_text)| {
4789 let start = multibuffer.anchor_in_excerpt(excerpt_id, range.start)?;
4790 let end = multibuffer.anchor_in_excerpt(excerpt_id, range.end)?;
4791 Some((start..end, new_text))
4792 })
4793 .collect::<Vec<_>>();
4794 if edits.is_empty() {
4795 return None;
4796 }
4797
4798 let first_edit_start = edits.first().unwrap().0.start;
4799 let edit_start_row = first_edit_start
4800 .to_point(&multibuffer)
4801 .row
4802 .saturating_sub(2);
4803
4804 let last_edit_end = edits.last().unwrap().0.end;
4805 let edit_end_row = cmp::min(
4806 multibuffer.max_point().row,
4807 last_edit_end.to_point(&multibuffer).row + 2,
4808 );
4809
4810 let cursor_row = cursor.to_point(&multibuffer).row;
4811
4812 let mut inlay_ids = Vec::new();
4813 let invalidation_row_range;
4814 let completion;
4815 if cursor_row < edit_start_row {
4816 invalidation_row_range = cursor_row..edit_end_row;
4817 completion = InlineCompletion::Move(first_edit_start);
4818 } else if cursor_row > edit_end_row {
4819 invalidation_row_range = edit_start_row..cursor_row;
4820 completion = InlineCompletion::Move(first_edit_start);
4821 } else {
4822 if edits
4823 .iter()
4824 .all(|(range, _)| range.to_offset(&multibuffer).is_empty())
4825 {
4826 let mut inlays = Vec::new();
4827 for (range, new_text) in &edits {
4828 let inlay = Inlay::inline_completion(
4829 post_inc(&mut self.next_inlay_id),
4830 range.start,
4831 new_text.as_str(),
4832 );
4833 inlay_ids.push(inlay.id);
4834 inlays.push(inlay);
4835 }
4836
4837 self.splice_inlays(vec![], inlays, cx);
4838 } else {
4839 let background_color = cx.theme().status().deleted_background;
4840 self.highlight_text::<InlineCompletionHighlight>(
4841 edits.iter().map(|(range, _)| range.clone()).collect(),
4842 HighlightStyle {
4843 background_color: Some(background_color),
4844 ..Default::default()
4845 },
4846 cx,
4847 );
4848 }
4849
4850 invalidation_row_range = edit_start_row..edit_end_row;
4851 completion = InlineCompletion::Edit(edits);
4852 };
4853
4854 let invalidation_range = multibuffer
4855 .anchor_before(Point::new(invalidation_row_range.start, 0))
4856 ..multibuffer.anchor_after(Point::new(
4857 invalidation_row_range.end,
4858 multibuffer.line_len(MultiBufferRow(invalidation_row_range.end)),
4859 ));
4860
4861 self.active_inline_completion = Some(InlineCompletionState {
4862 inlay_ids,
4863 completion,
4864 invalidation_range,
4865 });
4866
4867 if self.show_inline_completions_in_menu(cx) && self.has_active_completions_menu() {
4868 if let Some(hint) = self.inline_completion_menu_hint(cx) {
4869 match self.context_menu.borrow_mut().as_mut() {
4870 Some(CodeContextMenu::Completions(menu)) => {
4871 menu.show_inline_completion_hint(hint);
4872 }
4873 _ => {}
4874 }
4875 }
4876 }
4877
4878 cx.notify();
4879
4880 Some(())
4881 }
4882
4883 fn inline_completion_menu_hint(
4884 &mut self,
4885 cx: &mut ViewContext<Self>,
4886 ) -> Option<InlineCompletionMenuHint> {
4887 if self.has_active_inline_completion() {
4888 let provider_name = self.inline_completion_provider()?.display_name();
4889 let editor_snapshot = self.snapshot(cx);
4890
4891 let text = match &self.active_inline_completion.as_ref()?.completion {
4892 InlineCompletion::Edit(edits) => {
4893 inline_completion_edit_text(&editor_snapshot, edits, true, cx)
4894 }
4895 InlineCompletion::Move(target) => {
4896 let target_point =
4897 target.to_point(&editor_snapshot.display_snapshot.buffer_snapshot);
4898 let target_line = target_point.row + 1;
4899 InlineCompletionText::Move(
4900 format!("Jump to edit in line {}", target_line).into(),
4901 )
4902 }
4903 };
4904
4905 Some(InlineCompletionMenuHint {
4906 provider_name,
4907 text,
4908 })
4909 } else {
4910 None
4911 }
4912 }
4913
4914 pub fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4915 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4916 }
4917
4918 fn show_inline_completions_in_menu(&self, cx: &AppContext) -> bool {
4919 EditorSettings::get_global(cx).show_inline_completions_in_menu
4920 && self
4921 .inline_completion_provider()
4922 .map_or(false, |provider| provider.show_completions_in_menu())
4923 }
4924
4925 fn render_code_actions_indicator(
4926 &self,
4927 _style: &EditorStyle,
4928 row: DisplayRow,
4929 is_active: bool,
4930 cx: &mut ViewContext<Self>,
4931 ) -> Option<IconButton> {
4932 if self.available_code_actions.is_some() {
4933 Some(
4934 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4935 .shape(ui::IconButtonShape::Square)
4936 .icon_size(IconSize::XSmall)
4937 .icon_color(Color::Muted)
4938 .toggle_state(is_active)
4939 .tooltip({
4940 let focus_handle = self.focus_handle.clone();
4941 move |cx| {
4942 Tooltip::for_action_in(
4943 "Toggle Code Actions",
4944 &ToggleCodeActions {
4945 deployed_from_indicator: None,
4946 },
4947 &focus_handle,
4948 cx,
4949 )
4950 }
4951 })
4952 .on_click(cx.listener(move |editor, _e, cx| {
4953 editor.focus(cx);
4954 editor.toggle_code_actions(
4955 &ToggleCodeActions {
4956 deployed_from_indicator: Some(row),
4957 },
4958 cx,
4959 );
4960 })),
4961 )
4962 } else {
4963 None
4964 }
4965 }
4966
4967 fn clear_tasks(&mut self) {
4968 self.tasks.clear()
4969 }
4970
4971 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
4972 if self.tasks.insert(key, value).is_some() {
4973 // This case should hopefully be rare, but just in case...
4974 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4975 }
4976 }
4977
4978 fn build_tasks_context(
4979 project: &Model<Project>,
4980 buffer: &Model<Buffer>,
4981 buffer_row: u32,
4982 tasks: &Arc<RunnableTasks>,
4983 cx: &mut ViewContext<Self>,
4984 ) -> Task<Option<task::TaskContext>> {
4985 let position = Point::new(buffer_row, tasks.column);
4986 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4987 let location = Location {
4988 buffer: buffer.clone(),
4989 range: range_start..range_start,
4990 };
4991 // Fill in the environmental variables from the tree-sitter captures
4992 let mut captured_task_variables = TaskVariables::default();
4993 for (capture_name, value) in tasks.extra_variables.clone() {
4994 captured_task_variables.insert(
4995 task::VariableName::Custom(capture_name.into()),
4996 value.clone(),
4997 );
4998 }
4999 project.update(cx, |project, cx| {
5000 project.task_store().update(cx, |task_store, cx| {
5001 task_store.task_context_for_location(captured_task_variables, location, cx)
5002 })
5003 })
5004 }
5005
5006 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5007 let Some((workspace, _)) = self.workspace.clone() else {
5008 return;
5009 };
5010 let Some(project) = self.project.clone() else {
5011 return;
5012 };
5013
5014 // Try to find a closest, enclosing node using tree-sitter that has a
5015 // task
5016 let Some((buffer, buffer_row, tasks)) = self
5017 .find_enclosing_node_task(cx)
5018 // Or find the task that's closest in row-distance.
5019 .or_else(|| self.find_closest_task(cx))
5020 else {
5021 return;
5022 };
5023
5024 let reveal_strategy = action.reveal;
5025 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5026 cx.spawn(|_, mut cx| async move {
5027 let context = task_context.await?;
5028 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5029
5030 let resolved = resolved_task.resolved.as_mut()?;
5031 resolved.reveal = reveal_strategy;
5032
5033 workspace
5034 .update(&mut cx, |workspace, cx| {
5035 workspace::tasks::schedule_resolved_task(
5036 workspace,
5037 task_source_kind,
5038 resolved_task,
5039 false,
5040 cx,
5041 );
5042 })
5043 .ok()
5044 })
5045 .detach();
5046 }
5047
5048 fn find_closest_task(
5049 &mut self,
5050 cx: &mut ViewContext<Self>,
5051 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5052 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5053
5054 let ((buffer_id, row), tasks) = self
5055 .tasks
5056 .iter()
5057 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5058
5059 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5060 let tasks = Arc::new(tasks.to_owned());
5061 Some((buffer, *row, tasks))
5062 }
5063
5064 fn find_enclosing_node_task(
5065 &mut self,
5066 cx: &mut ViewContext<Self>,
5067 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5068 let snapshot = self.buffer.read(cx).snapshot(cx);
5069 let offset = self.selections.newest::<usize>(cx).head();
5070 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5071 let buffer_id = excerpt.buffer().remote_id();
5072
5073 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5074 let mut cursor = layer.node().walk();
5075
5076 while cursor.goto_first_child_for_byte(offset).is_some() {
5077 if cursor.node().end_byte() == offset {
5078 cursor.goto_next_sibling();
5079 }
5080 }
5081
5082 // Ascend to the smallest ancestor that contains the range and has a task.
5083 loop {
5084 let node = cursor.node();
5085 let node_range = node.byte_range();
5086 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5087
5088 // Check if this node contains our offset
5089 if node_range.start <= offset && node_range.end >= offset {
5090 // If it contains offset, check for task
5091 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5092 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5093 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5094 }
5095 }
5096
5097 if !cursor.goto_parent() {
5098 break;
5099 }
5100 }
5101 None
5102 }
5103
5104 fn render_run_indicator(
5105 &self,
5106 _style: &EditorStyle,
5107 is_active: bool,
5108 row: DisplayRow,
5109 cx: &mut ViewContext<Self>,
5110 ) -> IconButton {
5111 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5112 .shape(ui::IconButtonShape::Square)
5113 .icon_size(IconSize::XSmall)
5114 .icon_color(Color::Muted)
5115 .toggle_state(is_active)
5116 .on_click(cx.listener(move |editor, _e, cx| {
5117 editor.focus(cx);
5118 editor.toggle_code_actions(
5119 &ToggleCodeActions {
5120 deployed_from_indicator: Some(row),
5121 },
5122 cx,
5123 );
5124 }))
5125 }
5126
5127 #[cfg(any(feature = "test-support", test))]
5128 pub fn context_menu_visible(&self) -> bool {
5129 self.context_menu
5130 .borrow()
5131 .as_ref()
5132 .map_or(false, |menu| menu.visible())
5133 }
5134
5135 #[cfg(feature = "test-support")]
5136 pub fn context_menu_contains_inline_completion(&self) -> bool {
5137 self.context_menu
5138 .borrow()
5139 .as_ref()
5140 .map_or(false, |menu| match menu {
5141 CodeContextMenu::Completions(menu) => {
5142 menu.entries.borrow().first().map_or(false, |entry| {
5143 matches!(entry, CompletionEntry::InlineCompletionHint(_))
5144 })
5145 }
5146 CodeContextMenu::CodeActions(_) => false,
5147 })
5148 }
5149
5150 fn context_menu_origin(&self, cursor_position: DisplayPoint) -> Option<ContextMenuOrigin> {
5151 self.context_menu
5152 .borrow()
5153 .as_ref()
5154 .map(|menu| menu.origin(cursor_position))
5155 }
5156
5157 fn render_context_menu(
5158 &self,
5159 style: &EditorStyle,
5160 max_height_in_lines: u32,
5161 cx: &mut ViewContext<Editor>,
5162 ) -> Option<AnyElement> {
5163 self.context_menu.borrow().as_ref().and_then(|menu| {
5164 if menu.visible() {
5165 Some(menu.render(style, max_height_in_lines, cx))
5166 } else {
5167 None
5168 }
5169 })
5170 }
5171
5172 fn render_context_menu_aside(
5173 &self,
5174 style: &EditorStyle,
5175 max_size: Size<Pixels>,
5176 cx: &mut ViewContext<Editor>,
5177 ) -> Option<AnyElement> {
5178 self.context_menu.borrow().as_ref().and_then(|menu| {
5179 if menu.visible() {
5180 menu.render_aside(
5181 style,
5182 max_size,
5183 self.workspace.as_ref().map(|(w, _)| w.clone()),
5184 cx,
5185 )
5186 } else {
5187 None
5188 }
5189 })
5190 }
5191
5192 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<CodeContextMenu> {
5193 cx.notify();
5194 self.completion_tasks.clear();
5195 let context_menu = self.context_menu.borrow_mut().take();
5196 if context_menu.is_some() && !self.show_inline_completions_in_menu(cx) {
5197 self.update_visible_inline_completion(cx);
5198 }
5199 context_menu
5200 }
5201
5202 fn show_snippet_choices(
5203 &mut self,
5204 choices: &Vec<String>,
5205 selection: Range<Anchor>,
5206 cx: &mut ViewContext<Self>,
5207 ) {
5208 if selection.start.buffer_id.is_none() {
5209 return;
5210 }
5211 let buffer_id = selection.start.buffer_id.unwrap();
5212 let buffer = self.buffer().read(cx).buffer(buffer_id);
5213 let id = post_inc(&mut self.next_completion_id);
5214
5215 if let Some(buffer) = buffer {
5216 *self.context_menu.borrow_mut() = Some(CodeContextMenu::Completions(
5217 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
5218 ));
5219 }
5220 }
5221
5222 pub fn insert_snippet(
5223 &mut self,
5224 insertion_ranges: &[Range<usize>],
5225 snippet: Snippet,
5226 cx: &mut ViewContext<Self>,
5227 ) -> Result<()> {
5228 struct Tabstop<T> {
5229 is_end_tabstop: bool,
5230 ranges: Vec<Range<T>>,
5231 choices: Option<Vec<String>>,
5232 }
5233
5234 let tabstops = self.buffer.update(cx, |buffer, cx| {
5235 let snippet_text: Arc<str> = snippet.text.clone().into();
5236 buffer.edit(
5237 insertion_ranges
5238 .iter()
5239 .cloned()
5240 .map(|range| (range, snippet_text.clone())),
5241 Some(AutoindentMode::EachLine),
5242 cx,
5243 );
5244
5245 let snapshot = &*buffer.read(cx);
5246 let snippet = &snippet;
5247 snippet
5248 .tabstops
5249 .iter()
5250 .map(|tabstop| {
5251 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5252 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5253 });
5254 let mut tabstop_ranges = tabstop
5255 .ranges
5256 .iter()
5257 .flat_map(|tabstop_range| {
5258 let mut delta = 0_isize;
5259 insertion_ranges.iter().map(move |insertion_range| {
5260 let insertion_start = insertion_range.start as isize + delta;
5261 delta +=
5262 snippet.text.len() as isize - insertion_range.len() as isize;
5263
5264 let start = ((insertion_start + tabstop_range.start) as usize)
5265 .min(snapshot.len());
5266 let end = ((insertion_start + tabstop_range.end) as usize)
5267 .min(snapshot.len());
5268 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5269 })
5270 })
5271 .collect::<Vec<_>>();
5272 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5273
5274 Tabstop {
5275 is_end_tabstop,
5276 ranges: tabstop_ranges,
5277 choices: tabstop.choices.clone(),
5278 }
5279 })
5280 .collect::<Vec<_>>()
5281 });
5282 if let Some(tabstop) = tabstops.first() {
5283 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5284 s.select_ranges(tabstop.ranges.iter().cloned());
5285 });
5286
5287 if let Some(choices) = &tabstop.choices {
5288 if let Some(selection) = tabstop.ranges.first() {
5289 self.show_snippet_choices(choices, selection.clone(), cx)
5290 }
5291 }
5292
5293 // If we're already at the last tabstop and it's at the end of the snippet,
5294 // we're done, we don't need to keep the state around.
5295 if !tabstop.is_end_tabstop {
5296 let choices = tabstops
5297 .iter()
5298 .map(|tabstop| tabstop.choices.clone())
5299 .collect();
5300
5301 let ranges = tabstops
5302 .into_iter()
5303 .map(|tabstop| tabstop.ranges)
5304 .collect::<Vec<_>>();
5305
5306 self.snippet_stack.push(SnippetState {
5307 active_index: 0,
5308 ranges,
5309 choices,
5310 });
5311 }
5312
5313 // Check whether the just-entered snippet ends with an auto-closable bracket.
5314 if self.autoclose_regions.is_empty() {
5315 let snapshot = self.buffer.read(cx).snapshot(cx);
5316 for selection in &mut self.selections.all::<Point>(cx) {
5317 let selection_head = selection.head();
5318 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5319 continue;
5320 };
5321
5322 let mut bracket_pair = None;
5323 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5324 let prev_chars = snapshot
5325 .reversed_chars_at(selection_head)
5326 .collect::<String>();
5327 for (pair, enabled) in scope.brackets() {
5328 if enabled
5329 && pair.close
5330 && prev_chars.starts_with(pair.start.as_str())
5331 && next_chars.starts_with(pair.end.as_str())
5332 {
5333 bracket_pair = Some(pair.clone());
5334 break;
5335 }
5336 }
5337 if let Some(pair) = bracket_pair {
5338 let start = snapshot.anchor_after(selection_head);
5339 let end = snapshot.anchor_after(selection_head);
5340 self.autoclose_regions.push(AutocloseRegion {
5341 selection_id: selection.id,
5342 range: start..end,
5343 pair,
5344 });
5345 }
5346 }
5347 }
5348 }
5349 Ok(())
5350 }
5351
5352 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5353 self.move_to_snippet_tabstop(Bias::Right, cx)
5354 }
5355
5356 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5357 self.move_to_snippet_tabstop(Bias::Left, cx)
5358 }
5359
5360 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5361 if let Some(mut snippet) = self.snippet_stack.pop() {
5362 match bias {
5363 Bias::Left => {
5364 if snippet.active_index > 0 {
5365 snippet.active_index -= 1;
5366 } else {
5367 self.snippet_stack.push(snippet);
5368 return false;
5369 }
5370 }
5371 Bias::Right => {
5372 if snippet.active_index + 1 < snippet.ranges.len() {
5373 snippet.active_index += 1;
5374 } else {
5375 self.snippet_stack.push(snippet);
5376 return false;
5377 }
5378 }
5379 }
5380 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5381 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5382 s.select_anchor_ranges(current_ranges.iter().cloned())
5383 });
5384
5385 if let Some(choices) = &snippet.choices[snippet.active_index] {
5386 if let Some(selection) = current_ranges.first() {
5387 self.show_snippet_choices(&choices, selection.clone(), cx);
5388 }
5389 }
5390
5391 // If snippet state is not at the last tabstop, push it back on the stack
5392 if snippet.active_index + 1 < snippet.ranges.len() {
5393 self.snippet_stack.push(snippet);
5394 }
5395 return true;
5396 }
5397 }
5398
5399 false
5400 }
5401
5402 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5403 self.transact(cx, |this, cx| {
5404 this.select_all(&SelectAll, cx);
5405 this.insert("", cx);
5406 });
5407 }
5408
5409 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5410 self.transact(cx, |this, cx| {
5411 this.select_autoclose_pair(cx);
5412 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5413 if !this.linked_edit_ranges.is_empty() {
5414 let selections = this.selections.all::<MultiBufferPoint>(cx);
5415 let snapshot = this.buffer.read(cx).snapshot(cx);
5416
5417 for selection in selections.iter() {
5418 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5419 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5420 if selection_start.buffer_id != selection_end.buffer_id {
5421 continue;
5422 }
5423 if let Some(ranges) =
5424 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5425 {
5426 for (buffer, entries) in ranges {
5427 linked_ranges.entry(buffer).or_default().extend(entries);
5428 }
5429 }
5430 }
5431 }
5432
5433 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5434 if !this.selections.line_mode {
5435 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5436 for selection in &mut selections {
5437 if selection.is_empty() {
5438 let old_head = selection.head();
5439 let mut new_head =
5440 movement::left(&display_map, old_head.to_display_point(&display_map))
5441 .to_point(&display_map);
5442 if let Some((buffer, line_buffer_range)) = display_map
5443 .buffer_snapshot
5444 .buffer_line_for_row(MultiBufferRow(old_head.row))
5445 {
5446 let indent_size =
5447 buffer.indent_size_for_line(line_buffer_range.start.row);
5448 let indent_len = match indent_size.kind {
5449 IndentKind::Space => {
5450 buffer.settings_at(line_buffer_range.start, cx).tab_size
5451 }
5452 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5453 };
5454 if old_head.column <= indent_size.len && old_head.column > 0 {
5455 let indent_len = indent_len.get();
5456 new_head = cmp::min(
5457 new_head,
5458 MultiBufferPoint::new(
5459 old_head.row,
5460 ((old_head.column - 1) / indent_len) * indent_len,
5461 ),
5462 );
5463 }
5464 }
5465
5466 selection.set_head(new_head, SelectionGoal::None);
5467 }
5468 }
5469 }
5470
5471 this.signature_help_state.set_backspace_pressed(true);
5472 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5473 this.insert("", cx);
5474 let empty_str: Arc<str> = Arc::from("");
5475 for (buffer, edits) in linked_ranges {
5476 let snapshot = buffer.read(cx).snapshot();
5477 use text::ToPoint as TP;
5478
5479 let edits = edits
5480 .into_iter()
5481 .map(|range| {
5482 let end_point = TP::to_point(&range.end, &snapshot);
5483 let mut start_point = TP::to_point(&range.start, &snapshot);
5484
5485 if end_point == start_point {
5486 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5487 .saturating_sub(1);
5488 start_point =
5489 snapshot.clip_point(TP::to_point(&offset, &snapshot), Bias::Left);
5490 };
5491
5492 (start_point..end_point, empty_str.clone())
5493 })
5494 .sorted_by_key(|(range, _)| range.start)
5495 .collect::<Vec<_>>();
5496 buffer.update(cx, |this, cx| {
5497 this.edit(edits, None, cx);
5498 })
5499 }
5500 this.refresh_inline_completion(true, false, cx);
5501 linked_editing_ranges::refresh_linked_ranges(this, cx);
5502 });
5503 }
5504
5505 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5506 self.transact(cx, |this, cx| {
5507 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5508 let line_mode = s.line_mode;
5509 s.move_with(|map, selection| {
5510 if selection.is_empty() && !line_mode {
5511 let cursor = movement::right(map, selection.head());
5512 selection.end = cursor;
5513 selection.reversed = true;
5514 selection.goal = SelectionGoal::None;
5515 }
5516 })
5517 });
5518 this.insert("", cx);
5519 this.refresh_inline_completion(true, false, cx);
5520 });
5521 }
5522
5523 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5524 if self.move_to_prev_snippet_tabstop(cx) {
5525 return;
5526 }
5527
5528 self.outdent(&Outdent, cx);
5529 }
5530
5531 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5532 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5533 return;
5534 }
5535
5536 let mut selections = self.selections.all_adjusted(cx);
5537 let buffer = self.buffer.read(cx);
5538 let snapshot = buffer.snapshot(cx);
5539 let rows_iter = selections.iter().map(|s| s.head().row);
5540 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5541
5542 let mut edits = Vec::new();
5543 let mut prev_edited_row = 0;
5544 let mut row_delta = 0;
5545 for selection in &mut selections {
5546 if selection.start.row != prev_edited_row {
5547 row_delta = 0;
5548 }
5549 prev_edited_row = selection.end.row;
5550
5551 // If the selection is non-empty, then increase the indentation of the selected lines.
5552 if !selection.is_empty() {
5553 row_delta =
5554 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5555 continue;
5556 }
5557
5558 // If the selection is empty and the cursor is in the leading whitespace before the
5559 // suggested indentation, then auto-indent the line.
5560 let cursor = selection.head();
5561 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5562 if let Some(suggested_indent) =
5563 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5564 {
5565 if cursor.column < suggested_indent.len
5566 && cursor.column <= current_indent.len
5567 && current_indent.len <= suggested_indent.len
5568 {
5569 selection.start = Point::new(cursor.row, suggested_indent.len);
5570 selection.end = selection.start;
5571 if row_delta == 0 {
5572 edits.extend(Buffer::edit_for_indent_size_adjustment(
5573 cursor.row,
5574 current_indent,
5575 suggested_indent,
5576 ));
5577 row_delta = suggested_indent.len - current_indent.len;
5578 }
5579 continue;
5580 }
5581 }
5582
5583 // Otherwise, insert a hard or soft tab.
5584 let settings = buffer.settings_at(cursor, cx);
5585 let tab_size = if settings.hard_tabs {
5586 IndentSize::tab()
5587 } else {
5588 let tab_size = settings.tab_size.get();
5589 let char_column = snapshot
5590 .text_for_range(Point::new(cursor.row, 0)..cursor)
5591 .flat_map(str::chars)
5592 .count()
5593 + row_delta as usize;
5594 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5595 IndentSize::spaces(chars_to_next_tab_stop)
5596 };
5597 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5598 selection.end = selection.start;
5599 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5600 row_delta += tab_size.len;
5601 }
5602
5603 self.transact(cx, |this, cx| {
5604 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5605 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5606 this.refresh_inline_completion(true, false, cx);
5607 });
5608 }
5609
5610 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5611 if self.read_only(cx) {
5612 return;
5613 }
5614 let mut selections = self.selections.all::<Point>(cx);
5615 let mut prev_edited_row = 0;
5616 let mut row_delta = 0;
5617 let mut edits = Vec::new();
5618 let buffer = self.buffer.read(cx);
5619 let snapshot = buffer.snapshot(cx);
5620 for selection in &mut selections {
5621 if selection.start.row != prev_edited_row {
5622 row_delta = 0;
5623 }
5624 prev_edited_row = selection.end.row;
5625
5626 row_delta =
5627 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5628 }
5629
5630 self.transact(cx, |this, cx| {
5631 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5632 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5633 });
5634 }
5635
5636 fn indent_selection(
5637 buffer: &MultiBuffer,
5638 snapshot: &MultiBufferSnapshot,
5639 selection: &mut Selection<Point>,
5640 edits: &mut Vec<(Range<Point>, String)>,
5641 delta_for_start_row: u32,
5642 cx: &AppContext,
5643 ) -> u32 {
5644 let settings = buffer.settings_at(selection.start, cx);
5645 let tab_size = settings.tab_size.get();
5646 let indent_kind = if settings.hard_tabs {
5647 IndentKind::Tab
5648 } else {
5649 IndentKind::Space
5650 };
5651 let mut start_row = selection.start.row;
5652 let mut end_row = selection.end.row + 1;
5653
5654 // If a selection ends at the beginning of a line, don't indent
5655 // that last line.
5656 if selection.end.column == 0 && selection.end.row > selection.start.row {
5657 end_row -= 1;
5658 }
5659
5660 // Avoid re-indenting a row that has already been indented by a
5661 // previous selection, but still update this selection's column
5662 // to reflect that indentation.
5663 if delta_for_start_row > 0 {
5664 start_row += 1;
5665 selection.start.column += delta_for_start_row;
5666 if selection.end.row == selection.start.row {
5667 selection.end.column += delta_for_start_row;
5668 }
5669 }
5670
5671 let mut delta_for_end_row = 0;
5672 let has_multiple_rows = start_row + 1 != end_row;
5673 for row in start_row..end_row {
5674 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5675 let indent_delta = match (current_indent.kind, indent_kind) {
5676 (IndentKind::Space, IndentKind::Space) => {
5677 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5678 IndentSize::spaces(columns_to_next_tab_stop)
5679 }
5680 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5681 (_, IndentKind::Tab) => IndentSize::tab(),
5682 };
5683
5684 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5685 0
5686 } else {
5687 selection.start.column
5688 };
5689 let row_start = Point::new(row, start);
5690 edits.push((
5691 row_start..row_start,
5692 indent_delta.chars().collect::<String>(),
5693 ));
5694
5695 // Update this selection's endpoints to reflect the indentation.
5696 if row == selection.start.row {
5697 selection.start.column += indent_delta.len;
5698 }
5699 if row == selection.end.row {
5700 selection.end.column += indent_delta.len;
5701 delta_for_end_row = indent_delta.len;
5702 }
5703 }
5704
5705 if selection.start.row == selection.end.row {
5706 delta_for_start_row + delta_for_end_row
5707 } else {
5708 delta_for_end_row
5709 }
5710 }
5711
5712 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5713 if self.read_only(cx) {
5714 return;
5715 }
5716 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5717 let selections = self.selections.all::<Point>(cx);
5718 let mut deletion_ranges = Vec::new();
5719 let mut last_outdent = None;
5720 {
5721 let buffer = self.buffer.read(cx);
5722 let snapshot = buffer.snapshot(cx);
5723 for selection in &selections {
5724 let settings = buffer.settings_at(selection.start, cx);
5725 let tab_size = settings.tab_size.get();
5726 let mut rows = selection.spanned_rows(false, &display_map);
5727
5728 // Avoid re-outdenting a row that has already been outdented by a
5729 // previous selection.
5730 if let Some(last_row) = last_outdent {
5731 if last_row == rows.start {
5732 rows.start = rows.start.next_row();
5733 }
5734 }
5735 let has_multiple_rows = rows.len() > 1;
5736 for row in rows.iter_rows() {
5737 let indent_size = snapshot.indent_size_for_line(row);
5738 if indent_size.len > 0 {
5739 let deletion_len = match indent_size.kind {
5740 IndentKind::Space => {
5741 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5742 if columns_to_prev_tab_stop == 0 {
5743 tab_size
5744 } else {
5745 columns_to_prev_tab_stop
5746 }
5747 }
5748 IndentKind::Tab => 1,
5749 };
5750 let start = if has_multiple_rows
5751 || deletion_len > selection.start.column
5752 || indent_size.len < selection.start.column
5753 {
5754 0
5755 } else {
5756 selection.start.column - deletion_len
5757 };
5758 deletion_ranges.push(
5759 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5760 );
5761 last_outdent = Some(row);
5762 }
5763 }
5764 }
5765 }
5766
5767 self.transact(cx, |this, cx| {
5768 this.buffer.update(cx, |buffer, cx| {
5769 let empty_str: Arc<str> = Arc::default();
5770 buffer.edit(
5771 deletion_ranges
5772 .into_iter()
5773 .map(|range| (range, empty_str.clone())),
5774 None,
5775 cx,
5776 );
5777 });
5778 let selections = this.selections.all::<usize>(cx);
5779 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5780 });
5781 }
5782
5783 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
5784 if self.read_only(cx) {
5785 return;
5786 }
5787 let selections = self
5788 .selections
5789 .all::<usize>(cx)
5790 .into_iter()
5791 .map(|s| s.range());
5792
5793 self.transact(cx, |this, cx| {
5794 this.buffer.update(cx, |buffer, cx| {
5795 buffer.autoindent_ranges(selections, cx);
5796 });
5797 let selections = this.selections.all::<usize>(cx);
5798 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5799 });
5800 }
5801
5802 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5803 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5804 let selections = self.selections.all::<Point>(cx);
5805
5806 let mut new_cursors = Vec::new();
5807 let mut edit_ranges = Vec::new();
5808 let mut selections = selections.iter().peekable();
5809 while let Some(selection) = selections.next() {
5810 let mut rows = selection.spanned_rows(false, &display_map);
5811 let goal_display_column = selection.head().to_display_point(&display_map).column();
5812
5813 // Accumulate contiguous regions of rows that we want to delete.
5814 while let Some(next_selection) = selections.peek() {
5815 let next_rows = next_selection.spanned_rows(false, &display_map);
5816 if next_rows.start <= rows.end {
5817 rows.end = next_rows.end;
5818 selections.next().unwrap();
5819 } else {
5820 break;
5821 }
5822 }
5823
5824 let buffer = &display_map.buffer_snapshot;
5825 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5826 let edit_end;
5827 let cursor_buffer_row;
5828 if buffer.max_point().row >= rows.end.0 {
5829 // If there's a line after the range, delete the \n from the end of the row range
5830 // and position the cursor on the next line.
5831 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5832 cursor_buffer_row = rows.end;
5833 } else {
5834 // If there isn't a line after the range, delete the \n from the line before the
5835 // start of the row range and position the cursor there.
5836 edit_start = edit_start.saturating_sub(1);
5837 edit_end = buffer.len();
5838 cursor_buffer_row = rows.start.previous_row();
5839 }
5840
5841 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5842 *cursor.column_mut() =
5843 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5844
5845 new_cursors.push((
5846 selection.id,
5847 buffer.anchor_after(cursor.to_point(&display_map)),
5848 ));
5849 edit_ranges.push(edit_start..edit_end);
5850 }
5851
5852 self.transact(cx, |this, cx| {
5853 let buffer = this.buffer.update(cx, |buffer, cx| {
5854 let empty_str: Arc<str> = Arc::default();
5855 buffer.edit(
5856 edit_ranges
5857 .into_iter()
5858 .map(|range| (range, empty_str.clone())),
5859 None,
5860 cx,
5861 );
5862 buffer.snapshot(cx)
5863 });
5864 let new_selections = new_cursors
5865 .into_iter()
5866 .map(|(id, cursor)| {
5867 let cursor = cursor.to_point(&buffer);
5868 Selection {
5869 id,
5870 start: cursor,
5871 end: cursor,
5872 reversed: false,
5873 goal: SelectionGoal::None,
5874 }
5875 })
5876 .collect();
5877
5878 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5879 s.select(new_selections);
5880 });
5881 });
5882 }
5883
5884 pub fn join_lines_impl(&mut self, insert_whitespace: bool, cx: &mut ViewContext<Self>) {
5885 if self.read_only(cx) {
5886 return;
5887 }
5888 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5889 for selection in self.selections.all::<Point>(cx) {
5890 let start = MultiBufferRow(selection.start.row);
5891 // Treat single line selections as if they include the next line. Otherwise this action
5892 // would do nothing for single line selections individual cursors.
5893 let end = if selection.start.row == selection.end.row {
5894 MultiBufferRow(selection.start.row + 1)
5895 } else {
5896 MultiBufferRow(selection.end.row)
5897 };
5898
5899 if let Some(last_row_range) = row_ranges.last_mut() {
5900 if start <= last_row_range.end {
5901 last_row_range.end = end;
5902 continue;
5903 }
5904 }
5905 row_ranges.push(start..end);
5906 }
5907
5908 let snapshot = self.buffer.read(cx).snapshot(cx);
5909 let mut cursor_positions = Vec::new();
5910 for row_range in &row_ranges {
5911 let anchor = snapshot.anchor_before(Point::new(
5912 row_range.end.previous_row().0,
5913 snapshot.line_len(row_range.end.previous_row()),
5914 ));
5915 cursor_positions.push(anchor..anchor);
5916 }
5917
5918 self.transact(cx, |this, cx| {
5919 for row_range in row_ranges.into_iter().rev() {
5920 for row in row_range.iter_rows().rev() {
5921 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5922 let next_line_row = row.next_row();
5923 let indent = snapshot.indent_size_for_line(next_line_row);
5924 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5925
5926 let replace =
5927 if snapshot.line_len(next_line_row) > indent.len && insert_whitespace {
5928 " "
5929 } else {
5930 ""
5931 };
5932
5933 this.buffer.update(cx, |buffer, cx| {
5934 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5935 });
5936 }
5937 }
5938
5939 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5940 s.select_anchor_ranges(cursor_positions)
5941 });
5942 });
5943 }
5944
5945 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5946 self.join_lines_impl(true, cx);
5947 }
5948
5949 pub fn sort_lines_case_sensitive(
5950 &mut self,
5951 _: &SortLinesCaseSensitive,
5952 cx: &mut ViewContext<Self>,
5953 ) {
5954 self.manipulate_lines(cx, |lines| lines.sort())
5955 }
5956
5957 pub fn sort_lines_case_insensitive(
5958 &mut self,
5959 _: &SortLinesCaseInsensitive,
5960 cx: &mut ViewContext<Self>,
5961 ) {
5962 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5963 }
5964
5965 pub fn unique_lines_case_insensitive(
5966 &mut self,
5967 _: &UniqueLinesCaseInsensitive,
5968 cx: &mut ViewContext<Self>,
5969 ) {
5970 self.manipulate_lines(cx, |lines| {
5971 let mut seen = HashSet::default();
5972 lines.retain(|line| seen.insert(line.to_lowercase()));
5973 })
5974 }
5975
5976 pub fn unique_lines_case_sensitive(
5977 &mut self,
5978 _: &UniqueLinesCaseSensitive,
5979 cx: &mut ViewContext<Self>,
5980 ) {
5981 self.manipulate_lines(cx, |lines| {
5982 let mut seen = HashSet::default();
5983 lines.retain(|line| seen.insert(*line));
5984 })
5985 }
5986
5987 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
5988 let mut revert_changes = HashMap::default();
5989 let snapshot = self.snapshot(cx);
5990 for hunk in hunks_for_ranges(
5991 Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter(),
5992 &snapshot,
5993 ) {
5994 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5995 }
5996 if !revert_changes.is_empty() {
5997 self.transact(cx, |editor, cx| {
5998 editor.revert(revert_changes, cx);
5999 });
6000 }
6001 }
6002
6003 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6004 let Some(project) = self.project.clone() else {
6005 return;
6006 };
6007 self.reload(project, cx).detach_and_notify_err(cx);
6008 }
6009
6010 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6011 let revert_changes = self.gather_revert_changes(&self.selections.all(cx), cx);
6012 if !revert_changes.is_empty() {
6013 self.transact(cx, |editor, cx| {
6014 editor.revert(revert_changes, cx);
6015 });
6016 }
6017 }
6018
6019 fn revert_hunk(&mut self, hunk: HoveredHunk, cx: &mut ViewContext<Editor>) {
6020 let snapshot = self.buffer.read(cx).read(cx);
6021 if let Some(hunk) = crate::hunk_diff::to_diff_hunk(&hunk, &snapshot) {
6022 drop(snapshot);
6023 let mut revert_changes = HashMap::default();
6024 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6025 if !revert_changes.is_empty() {
6026 self.revert(revert_changes, cx)
6027 }
6028 }
6029 }
6030
6031 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6032 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6033 let project_path = buffer.read(cx).project_path(cx)?;
6034 let project = self.project.as_ref()?.read(cx);
6035 let entry = project.entry_for_path(&project_path, cx)?;
6036 let parent = match &entry.canonical_path {
6037 Some(canonical_path) => canonical_path.to_path_buf(),
6038 None => project.absolute_path(&project_path, cx)?,
6039 }
6040 .parent()?
6041 .to_path_buf();
6042 Some(parent)
6043 }) {
6044 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6045 }
6046 }
6047
6048 fn gather_revert_changes(
6049 &mut self,
6050 selections: &[Selection<Point>],
6051 cx: &mut ViewContext<Editor>,
6052 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6053 let mut revert_changes = HashMap::default();
6054 let snapshot = self.snapshot(cx);
6055 for hunk in hunks_for_selections(&snapshot, selections) {
6056 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6057 }
6058 revert_changes
6059 }
6060
6061 pub fn prepare_revert_change(
6062 &mut self,
6063 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6064 hunk: &MultiBufferDiffHunk,
6065 cx: &AppContext,
6066 ) -> Option<()> {
6067 let buffer = self.buffer.read(cx).buffer(hunk.buffer_id)?;
6068 let buffer = buffer.read(cx);
6069 let change_set = &self.diff_map.diff_bases.get(&hunk.buffer_id)?.change_set;
6070 let original_text = change_set
6071 .read(cx)
6072 .base_text
6073 .as_ref()?
6074 .read(cx)
6075 .as_rope()
6076 .slice(hunk.diff_base_byte_range.clone());
6077 let buffer_snapshot = buffer.snapshot();
6078 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6079 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6080 probe
6081 .0
6082 .start
6083 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6084 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6085 }) {
6086 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6087 Some(())
6088 } else {
6089 None
6090 }
6091 }
6092
6093 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6094 self.manipulate_lines(cx, |lines| lines.reverse())
6095 }
6096
6097 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6098 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6099 }
6100
6101 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6102 where
6103 Fn: FnMut(&mut Vec<&str>),
6104 {
6105 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6106 let buffer = self.buffer.read(cx).snapshot(cx);
6107
6108 let mut edits = Vec::new();
6109
6110 let selections = self.selections.all::<Point>(cx);
6111 let mut selections = selections.iter().peekable();
6112 let mut contiguous_row_selections = Vec::new();
6113 let mut new_selections = Vec::new();
6114 let mut added_lines = 0;
6115 let mut removed_lines = 0;
6116
6117 while let Some(selection) = selections.next() {
6118 let (start_row, end_row) = consume_contiguous_rows(
6119 &mut contiguous_row_selections,
6120 selection,
6121 &display_map,
6122 &mut selections,
6123 );
6124
6125 let start_point = Point::new(start_row.0, 0);
6126 let end_point = Point::new(
6127 end_row.previous_row().0,
6128 buffer.line_len(end_row.previous_row()),
6129 );
6130 let text = buffer
6131 .text_for_range(start_point..end_point)
6132 .collect::<String>();
6133
6134 let mut lines = text.split('\n').collect_vec();
6135
6136 let lines_before = lines.len();
6137 callback(&mut lines);
6138 let lines_after = lines.len();
6139
6140 edits.push((start_point..end_point, lines.join("\n")));
6141
6142 // Selections must change based on added and removed line count
6143 let start_row =
6144 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6145 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6146 new_selections.push(Selection {
6147 id: selection.id,
6148 start: start_row,
6149 end: end_row,
6150 goal: SelectionGoal::None,
6151 reversed: selection.reversed,
6152 });
6153
6154 if lines_after > lines_before {
6155 added_lines += lines_after - lines_before;
6156 } else if lines_before > lines_after {
6157 removed_lines += lines_before - lines_after;
6158 }
6159 }
6160
6161 self.transact(cx, |this, cx| {
6162 let buffer = this.buffer.update(cx, |buffer, cx| {
6163 buffer.edit(edits, None, cx);
6164 buffer.snapshot(cx)
6165 });
6166
6167 // Recalculate offsets on newly edited buffer
6168 let new_selections = new_selections
6169 .iter()
6170 .map(|s| {
6171 let start_point = Point::new(s.start.0, 0);
6172 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6173 Selection {
6174 id: s.id,
6175 start: buffer.point_to_offset(start_point),
6176 end: buffer.point_to_offset(end_point),
6177 goal: s.goal,
6178 reversed: s.reversed,
6179 }
6180 })
6181 .collect();
6182
6183 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6184 s.select(new_selections);
6185 });
6186
6187 this.request_autoscroll(Autoscroll::fit(), cx);
6188 });
6189 }
6190
6191 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6192 self.manipulate_text(cx, |text| text.to_uppercase())
6193 }
6194
6195 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6196 self.manipulate_text(cx, |text| text.to_lowercase())
6197 }
6198
6199 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6200 self.manipulate_text(cx, |text| {
6201 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6202 // https://github.com/rutrum/convert-case/issues/16
6203 text.split('\n')
6204 .map(|line| line.to_case(Case::Title))
6205 .join("\n")
6206 })
6207 }
6208
6209 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6210 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6211 }
6212
6213 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6214 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6215 }
6216
6217 pub fn convert_to_upper_camel_case(
6218 &mut self,
6219 _: &ConvertToUpperCamelCase,
6220 cx: &mut ViewContext<Self>,
6221 ) {
6222 self.manipulate_text(cx, |text| {
6223 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6224 // https://github.com/rutrum/convert-case/issues/16
6225 text.split('\n')
6226 .map(|line| line.to_case(Case::UpperCamel))
6227 .join("\n")
6228 })
6229 }
6230
6231 pub fn convert_to_lower_camel_case(
6232 &mut self,
6233 _: &ConvertToLowerCamelCase,
6234 cx: &mut ViewContext<Self>,
6235 ) {
6236 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6237 }
6238
6239 pub fn convert_to_opposite_case(
6240 &mut self,
6241 _: &ConvertToOppositeCase,
6242 cx: &mut ViewContext<Self>,
6243 ) {
6244 self.manipulate_text(cx, |text| {
6245 text.chars()
6246 .fold(String::with_capacity(text.len()), |mut t, c| {
6247 if c.is_uppercase() {
6248 t.extend(c.to_lowercase());
6249 } else {
6250 t.extend(c.to_uppercase());
6251 }
6252 t
6253 })
6254 })
6255 }
6256
6257 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6258 where
6259 Fn: FnMut(&str) -> String,
6260 {
6261 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6262 let buffer = self.buffer.read(cx).snapshot(cx);
6263
6264 let mut new_selections = Vec::new();
6265 let mut edits = Vec::new();
6266 let mut selection_adjustment = 0i32;
6267
6268 for selection in self.selections.all::<usize>(cx) {
6269 let selection_is_empty = selection.is_empty();
6270
6271 let (start, end) = if selection_is_empty {
6272 let word_range = movement::surrounding_word(
6273 &display_map,
6274 selection.start.to_display_point(&display_map),
6275 );
6276 let start = word_range.start.to_offset(&display_map, Bias::Left);
6277 let end = word_range.end.to_offset(&display_map, Bias::Left);
6278 (start, end)
6279 } else {
6280 (selection.start, selection.end)
6281 };
6282
6283 let text = buffer.text_for_range(start..end).collect::<String>();
6284 let old_length = text.len() as i32;
6285 let text = callback(&text);
6286
6287 new_selections.push(Selection {
6288 start: (start as i32 - selection_adjustment) as usize,
6289 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6290 goal: SelectionGoal::None,
6291 ..selection
6292 });
6293
6294 selection_adjustment += old_length - text.len() as i32;
6295
6296 edits.push((start..end, text));
6297 }
6298
6299 self.transact(cx, |this, cx| {
6300 this.buffer.update(cx, |buffer, cx| {
6301 buffer.edit(edits, None, cx);
6302 });
6303
6304 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6305 s.select(new_selections);
6306 });
6307
6308 this.request_autoscroll(Autoscroll::fit(), cx);
6309 });
6310 }
6311
6312 pub fn duplicate(&mut self, upwards: bool, whole_lines: bool, cx: &mut ViewContext<Self>) {
6313 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6314 let buffer = &display_map.buffer_snapshot;
6315 let selections = self.selections.all::<Point>(cx);
6316
6317 let mut edits = Vec::new();
6318 let mut selections_iter = selections.iter().peekable();
6319 while let Some(selection) = selections_iter.next() {
6320 let mut rows = selection.spanned_rows(false, &display_map);
6321 // duplicate line-wise
6322 if whole_lines || selection.start == selection.end {
6323 // Avoid duplicating the same lines twice.
6324 while let Some(next_selection) = selections_iter.peek() {
6325 let next_rows = next_selection.spanned_rows(false, &display_map);
6326 if next_rows.start < rows.end {
6327 rows.end = next_rows.end;
6328 selections_iter.next().unwrap();
6329 } else {
6330 break;
6331 }
6332 }
6333
6334 // Copy the text from the selected row region and splice it either at the start
6335 // or end of the region.
6336 let start = Point::new(rows.start.0, 0);
6337 let end = Point::new(
6338 rows.end.previous_row().0,
6339 buffer.line_len(rows.end.previous_row()),
6340 );
6341 let text = buffer
6342 .text_for_range(start..end)
6343 .chain(Some("\n"))
6344 .collect::<String>();
6345 let insert_location = if upwards {
6346 Point::new(rows.end.0, 0)
6347 } else {
6348 start
6349 };
6350 edits.push((insert_location..insert_location, text));
6351 } else {
6352 // duplicate character-wise
6353 let start = selection.start;
6354 let end = selection.end;
6355 let text = buffer.text_for_range(start..end).collect::<String>();
6356 edits.push((selection.end..selection.end, text));
6357 }
6358 }
6359
6360 self.transact(cx, |this, cx| {
6361 this.buffer.update(cx, |buffer, cx| {
6362 buffer.edit(edits, None, cx);
6363 });
6364
6365 this.request_autoscroll(Autoscroll::fit(), cx);
6366 });
6367 }
6368
6369 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6370 self.duplicate(true, true, cx);
6371 }
6372
6373 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6374 self.duplicate(false, true, cx);
6375 }
6376
6377 pub fn duplicate_selection(&mut self, _: &DuplicateSelection, cx: &mut ViewContext<Self>) {
6378 self.duplicate(false, false, cx);
6379 }
6380
6381 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6382 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6383 let buffer = self.buffer.read(cx).snapshot(cx);
6384
6385 let mut edits = Vec::new();
6386 let mut unfold_ranges = Vec::new();
6387 let mut refold_creases = Vec::new();
6388
6389 let selections = self.selections.all::<Point>(cx);
6390 let mut selections = selections.iter().peekable();
6391 let mut contiguous_row_selections = Vec::new();
6392 let mut new_selections = Vec::new();
6393
6394 while let Some(selection) = selections.next() {
6395 // Find all the selections that span a contiguous row range
6396 let (start_row, end_row) = consume_contiguous_rows(
6397 &mut contiguous_row_selections,
6398 selection,
6399 &display_map,
6400 &mut selections,
6401 );
6402
6403 // Move the text spanned by the row range to be before the line preceding the row range
6404 if start_row.0 > 0 {
6405 let range_to_move = Point::new(
6406 start_row.previous_row().0,
6407 buffer.line_len(start_row.previous_row()),
6408 )
6409 ..Point::new(
6410 end_row.previous_row().0,
6411 buffer.line_len(end_row.previous_row()),
6412 );
6413 let insertion_point = display_map
6414 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6415 .0;
6416
6417 // Don't move lines across excerpts
6418 if buffer
6419 .excerpt_boundaries_in_range((
6420 Bound::Excluded(insertion_point),
6421 Bound::Included(range_to_move.end),
6422 ))
6423 .next()
6424 .is_none()
6425 {
6426 let text = buffer
6427 .text_for_range(range_to_move.clone())
6428 .flat_map(|s| s.chars())
6429 .skip(1)
6430 .chain(['\n'])
6431 .collect::<String>();
6432
6433 edits.push((
6434 buffer.anchor_after(range_to_move.start)
6435 ..buffer.anchor_before(range_to_move.end),
6436 String::new(),
6437 ));
6438 let insertion_anchor = buffer.anchor_after(insertion_point);
6439 edits.push((insertion_anchor..insertion_anchor, text));
6440
6441 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6442
6443 // Move selections up
6444 new_selections.extend(contiguous_row_selections.drain(..).map(
6445 |mut selection| {
6446 selection.start.row -= row_delta;
6447 selection.end.row -= row_delta;
6448 selection
6449 },
6450 ));
6451
6452 // Move folds up
6453 unfold_ranges.push(range_to_move.clone());
6454 for fold in display_map.folds_in_range(
6455 buffer.anchor_before(range_to_move.start)
6456 ..buffer.anchor_after(range_to_move.end),
6457 ) {
6458 let mut start = fold.range.start.to_point(&buffer);
6459 let mut end = fold.range.end.to_point(&buffer);
6460 start.row -= row_delta;
6461 end.row -= row_delta;
6462 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6463 }
6464 }
6465 }
6466
6467 // If we didn't move line(s), preserve the existing selections
6468 new_selections.append(&mut contiguous_row_selections);
6469 }
6470
6471 self.transact(cx, |this, cx| {
6472 this.unfold_ranges(&unfold_ranges, true, true, cx);
6473 this.buffer.update(cx, |buffer, cx| {
6474 for (range, text) in edits {
6475 buffer.edit([(range, text)], None, cx);
6476 }
6477 });
6478 this.fold_creases(refold_creases, true, cx);
6479 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6480 s.select(new_selections);
6481 })
6482 });
6483 }
6484
6485 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6486 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6487 let buffer = self.buffer.read(cx).snapshot(cx);
6488
6489 let mut edits = Vec::new();
6490 let mut unfold_ranges = Vec::new();
6491 let mut refold_creases = Vec::new();
6492
6493 let selections = self.selections.all::<Point>(cx);
6494 let mut selections = selections.iter().peekable();
6495 let mut contiguous_row_selections = Vec::new();
6496 let mut new_selections = Vec::new();
6497
6498 while let Some(selection) = selections.next() {
6499 // Find all the selections that span a contiguous row range
6500 let (start_row, end_row) = consume_contiguous_rows(
6501 &mut contiguous_row_selections,
6502 selection,
6503 &display_map,
6504 &mut selections,
6505 );
6506
6507 // Move the text spanned by the row range to be after the last line of the row range
6508 if end_row.0 <= buffer.max_point().row {
6509 let range_to_move =
6510 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6511 let insertion_point = display_map
6512 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6513 .0;
6514
6515 // Don't move lines across excerpt boundaries
6516 if buffer
6517 .excerpt_boundaries_in_range((
6518 Bound::Excluded(range_to_move.start),
6519 Bound::Included(insertion_point),
6520 ))
6521 .next()
6522 .is_none()
6523 {
6524 let mut text = String::from("\n");
6525 text.extend(buffer.text_for_range(range_to_move.clone()));
6526 text.pop(); // Drop trailing newline
6527 edits.push((
6528 buffer.anchor_after(range_to_move.start)
6529 ..buffer.anchor_before(range_to_move.end),
6530 String::new(),
6531 ));
6532 let insertion_anchor = buffer.anchor_after(insertion_point);
6533 edits.push((insertion_anchor..insertion_anchor, text));
6534
6535 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6536
6537 // Move selections down
6538 new_selections.extend(contiguous_row_selections.drain(..).map(
6539 |mut selection| {
6540 selection.start.row += row_delta;
6541 selection.end.row += row_delta;
6542 selection
6543 },
6544 ));
6545
6546 // Move folds down
6547 unfold_ranges.push(range_to_move.clone());
6548 for fold in display_map.folds_in_range(
6549 buffer.anchor_before(range_to_move.start)
6550 ..buffer.anchor_after(range_to_move.end),
6551 ) {
6552 let mut start = fold.range.start.to_point(&buffer);
6553 let mut end = fold.range.end.to_point(&buffer);
6554 start.row += row_delta;
6555 end.row += row_delta;
6556 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6557 }
6558 }
6559 }
6560
6561 // If we didn't move line(s), preserve the existing selections
6562 new_selections.append(&mut contiguous_row_selections);
6563 }
6564
6565 self.transact(cx, |this, cx| {
6566 this.unfold_ranges(&unfold_ranges, true, true, cx);
6567 this.buffer.update(cx, |buffer, cx| {
6568 for (range, text) in edits {
6569 buffer.edit([(range, text)], None, cx);
6570 }
6571 });
6572 this.fold_creases(refold_creases, true, cx);
6573 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6574 });
6575 }
6576
6577 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6578 let text_layout_details = &self.text_layout_details(cx);
6579 self.transact(cx, |this, cx| {
6580 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6581 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6582 let line_mode = s.line_mode;
6583 s.move_with(|display_map, selection| {
6584 if !selection.is_empty() || line_mode {
6585 return;
6586 }
6587
6588 let mut head = selection.head();
6589 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6590 if head.column() == display_map.line_len(head.row()) {
6591 transpose_offset = display_map
6592 .buffer_snapshot
6593 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6594 }
6595
6596 if transpose_offset == 0 {
6597 return;
6598 }
6599
6600 *head.column_mut() += 1;
6601 head = display_map.clip_point(head, Bias::Right);
6602 let goal = SelectionGoal::HorizontalPosition(
6603 display_map
6604 .x_for_display_point(head, text_layout_details)
6605 .into(),
6606 );
6607 selection.collapse_to(head, goal);
6608
6609 let transpose_start = display_map
6610 .buffer_snapshot
6611 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6612 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6613 let transpose_end = display_map
6614 .buffer_snapshot
6615 .clip_offset(transpose_offset + 1, Bias::Right);
6616 if let Some(ch) =
6617 display_map.buffer_snapshot.chars_at(transpose_start).next()
6618 {
6619 edits.push((transpose_start..transpose_offset, String::new()));
6620 edits.push((transpose_end..transpose_end, ch.to_string()));
6621 }
6622 }
6623 });
6624 edits
6625 });
6626 this.buffer
6627 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6628 let selections = this.selections.all::<usize>(cx);
6629 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6630 s.select(selections);
6631 });
6632 });
6633 }
6634
6635 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6636 self.rewrap_impl(IsVimMode::No, cx)
6637 }
6638
6639 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
6640 let buffer = self.buffer.read(cx).snapshot(cx);
6641 let selections = self.selections.all::<Point>(cx);
6642 let mut selections = selections.iter().peekable();
6643
6644 let mut edits = Vec::new();
6645 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6646
6647 while let Some(selection) = selections.next() {
6648 let mut start_row = selection.start.row;
6649 let mut end_row = selection.end.row;
6650
6651 // Skip selections that overlap with a range that has already been rewrapped.
6652 let selection_range = start_row..end_row;
6653 if rewrapped_row_ranges
6654 .iter()
6655 .any(|range| range.overlaps(&selection_range))
6656 {
6657 continue;
6658 }
6659
6660 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
6661
6662 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6663 match language_scope.language_name().0.as_ref() {
6664 "Markdown" | "Plain Text" => {
6665 should_rewrap = true;
6666 }
6667 _ => {}
6668 }
6669 }
6670
6671 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
6672
6673 // Since not all lines in the selection may be at the same indent
6674 // level, choose the indent size that is the most common between all
6675 // of the lines.
6676 //
6677 // If there is a tie, we use the deepest indent.
6678 let (indent_size, indent_end) = {
6679 let mut indent_size_occurrences = HashMap::default();
6680 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6681
6682 for row in start_row..=end_row {
6683 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6684 rows_by_indent_size.entry(indent).or_default().push(row);
6685 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6686 }
6687
6688 let indent_size = indent_size_occurrences
6689 .into_iter()
6690 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
6691 .map(|(indent, _)| indent)
6692 .unwrap_or_default();
6693 let row = rows_by_indent_size[&indent_size][0];
6694 let indent_end = Point::new(row, indent_size.len);
6695
6696 (indent_size, indent_end)
6697 };
6698
6699 let mut line_prefix = indent_size.chars().collect::<String>();
6700
6701 if let Some(comment_prefix) =
6702 buffer
6703 .language_scope_at(selection.head())
6704 .and_then(|language| {
6705 language
6706 .line_comment_prefixes()
6707 .iter()
6708 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6709 .cloned()
6710 })
6711 {
6712 line_prefix.push_str(&comment_prefix);
6713 should_rewrap = true;
6714 }
6715
6716 if !should_rewrap {
6717 continue;
6718 }
6719
6720 if selection.is_empty() {
6721 'expand_upwards: while start_row > 0 {
6722 let prev_row = start_row - 1;
6723 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6724 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6725 {
6726 start_row = prev_row;
6727 } else {
6728 break 'expand_upwards;
6729 }
6730 }
6731
6732 'expand_downwards: while end_row < buffer.max_point().row {
6733 let next_row = end_row + 1;
6734 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6735 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6736 {
6737 end_row = next_row;
6738 } else {
6739 break 'expand_downwards;
6740 }
6741 }
6742 }
6743
6744 let start = Point::new(start_row, 0);
6745 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6746 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6747 let Some(lines_without_prefixes) = selection_text
6748 .lines()
6749 .map(|line| {
6750 line.strip_prefix(&line_prefix)
6751 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6752 .ok_or_else(|| {
6753 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6754 })
6755 })
6756 .collect::<Result<Vec<_>, _>>()
6757 .log_err()
6758 else {
6759 continue;
6760 };
6761
6762 let wrap_column = buffer
6763 .settings_at(Point::new(start_row, 0), cx)
6764 .preferred_line_length as usize;
6765 let wrapped_text = wrap_with_prefix(
6766 line_prefix,
6767 lines_without_prefixes.join(" "),
6768 wrap_column,
6769 tab_size,
6770 );
6771
6772 // TODO: should always use char-based diff while still supporting cursor behavior that
6773 // matches vim.
6774 let diff = match is_vim_mode {
6775 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
6776 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
6777 };
6778 let mut offset = start.to_offset(&buffer);
6779 let mut moved_since_edit = true;
6780
6781 for change in diff.iter_all_changes() {
6782 let value = change.value();
6783 match change.tag() {
6784 ChangeTag::Equal => {
6785 offset += value.len();
6786 moved_since_edit = true;
6787 }
6788 ChangeTag::Delete => {
6789 let start = buffer.anchor_after(offset);
6790 let end = buffer.anchor_before(offset + value.len());
6791
6792 if moved_since_edit {
6793 edits.push((start..end, String::new()));
6794 } else {
6795 edits.last_mut().unwrap().0.end = end;
6796 }
6797
6798 offset += value.len();
6799 moved_since_edit = false;
6800 }
6801 ChangeTag::Insert => {
6802 if moved_since_edit {
6803 let anchor = buffer.anchor_after(offset);
6804 edits.push((anchor..anchor, value.to_string()));
6805 } else {
6806 edits.last_mut().unwrap().1.push_str(value);
6807 }
6808
6809 moved_since_edit = false;
6810 }
6811 }
6812 }
6813
6814 rewrapped_row_ranges.push(start_row..=end_row);
6815 }
6816
6817 self.buffer
6818 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6819 }
6820
6821 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
6822 let mut text = String::new();
6823 let buffer = self.buffer.read(cx).snapshot(cx);
6824 let mut selections = self.selections.all::<Point>(cx);
6825 let mut clipboard_selections = Vec::with_capacity(selections.len());
6826 {
6827 let max_point = buffer.max_point();
6828 let mut is_first = true;
6829 for selection in &mut selections {
6830 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6831 if is_entire_line {
6832 selection.start = Point::new(selection.start.row, 0);
6833 if !selection.is_empty() && selection.end.column == 0 {
6834 selection.end = cmp::min(max_point, selection.end);
6835 } else {
6836 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6837 }
6838 selection.goal = SelectionGoal::None;
6839 }
6840 if is_first {
6841 is_first = false;
6842 } else {
6843 text += "\n";
6844 }
6845 let mut len = 0;
6846 for chunk in buffer.text_for_range(selection.start..selection.end) {
6847 text.push_str(chunk);
6848 len += chunk.len();
6849 }
6850 clipboard_selections.push(ClipboardSelection {
6851 len,
6852 is_entire_line,
6853 first_line_indent: buffer
6854 .indent_size_for_line(MultiBufferRow(selection.start.row))
6855 .len,
6856 });
6857 }
6858 }
6859
6860 self.transact(cx, |this, cx| {
6861 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6862 s.select(selections);
6863 });
6864 this.insert("", cx);
6865 });
6866 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
6867 }
6868
6869 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6870 let item = self.cut_common(cx);
6871 cx.write_to_clipboard(item);
6872 }
6873
6874 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
6875 self.change_selections(None, cx, |s| {
6876 s.move_with(|snapshot, sel| {
6877 if sel.is_empty() {
6878 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
6879 }
6880 });
6881 });
6882 let item = self.cut_common(cx);
6883 cx.set_global(KillRing(item))
6884 }
6885
6886 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
6887 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
6888 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
6889 (kill_ring.text().to_string(), kill_ring.metadata_json())
6890 } else {
6891 return;
6892 }
6893 } else {
6894 return;
6895 };
6896 self.do_paste(&text, metadata, false, cx);
6897 }
6898
6899 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6900 let selections = self.selections.all::<Point>(cx);
6901 let buffer = self.buffer.read(cx).read(cx);
6902 let mut text = String::new();
6903
6904 let mut clipboard_selections = Vec::with_capacity(selections.len());
6905 {
6906 let max_point = buffer.max_point();
6907 let mut is_first = true;
6908 for selection in selections.iter() {
6909 let mut start = selection.start;
6910 let mut end = selection.end;
6911 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6912 if is_entire_line {
6913 start = Point::new(start.row, 0);
6914 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6915 }
6916 if is_first {
6917 is_first = false;
6918 } else {
6919 text += "\n";
6920 }
6921 let mut len = 0;
6922 for chunk in buffer.text_for_range(start..end) {
6923 text.push_str(chunk);
6924 len += chunk.len();
6925 }
6926 clipboard_selections.push(ClipboardSelection {
6927 len,
6928 is_entire_line,
6929 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6930 });
6931 }
6932 }
6933
6934 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6935 text,
6936 clipboard_selections,
6937 ));
6938 }
6939
6940 pub fn do_paste(
6941 &mut self,
6942 text: &String,
6943 clipboard_selections: Option<Vec<ClipboardSelection>>,
6944 handle_entire_lines: bool,
6945 cx: &mut ViewContext<Self>,
6946 ) {
6947 if self.read_only(cx) {
6948 return;
6949 }
6950
6951 let clipboard_text = Cow::Borrowed(text);
6952
6953 self.transact(cx, |this, cx| {
6954 if let Some(mut clipboard_selections) = clipboard_selections {
6955 let old_selections = this.selections.all::<usize>(cx);
6956 let all_selections_were_entire_line =
6957 clipboard_selections.iter().all(|s| s.is_entire_line);
6958 let first_selection_indent_column =
6959 clipboard_selections.first().map(|s| s.first_line_indent);
6960 if clipboard_selections.len() != old_selections.len() {
6961 clipboard_selections.drain(..);
6962 }
6963 let cursor_offset = this.selections.last::<usize>(cx).head();
6964 let mut auto_indent_on_paste = true;
6965
6966 this.buffer.update(cx, |buffer, cx| {
6967 let snapshot = buffer.read(cx);
6968 auto_indent_on_paste =
6969 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
6970
6971 let mut start_offset = 0;
6972 let mut edits = Vec::new();
6973 let mut original_indent_columns = Vec::new();
6974 for (ix, selection) in old_selections.iter().enumerate() {
6975 let to_insert;
6976 let entire_line;
6977 let original_indent_column;
6978 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6979 let end_offset = start_offset + clipboard_selection.len;
6980 to_insert = &clipboard_text[start_offset..end_offset];
6981 entire_line = clipboard_selection.is_entire_line;
6982 start_offset = end_offset + 1;
6983 original_indent_column = Some(clipboard_selection.first_line_indent);
6984 } else {
6985 to_insert = clipboard_text.as_str();
6986 entire_line = all_selections_were_entire_line;
6987 original_indent_column = first_selection_indent_column
6988 }
6989
6990 // If the corresponding selection was empty when this slice of the
6991 // clipboard text was written, then the entire line containing the
6992 // selection was copied. If this selection is also currently empty,
6993 // then paste the line before the current line of the buffer.
6994 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6995 let column = selection.start.to_point(&snapshot).column as usize;
6996 let line_start = selection.start - column;
6997 line_start..line_start
6998 } else {
6999 selection.range()
7000 };
7001
7002 edits.push((range, to_insert));
7003 original_indent_columns.extend(original_indent_column);
7004 }
7005 drop(snapshot);
7006
7007 buffer.edit(
7008 edits,
7009 if auto_indent_on_paste {
7010 Some(AutoindentMode::Block {
7011 original_indent_columns,
7012 })
7013 } else {
7014 None
7015 },
7016 cx,
7017 );
7018 });
7019
7020 let selections = this.selections.all::<usize>(cx);
7021 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7022 } else {
7023 this.insert(&clipboard_text, cx);
7024 }
7025 });
7026 }
7027
7028 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7029 if let Some(item) = cx.read_from_clipboard() {
7030 let entries = item.entries();
7031
7032 match entries.first() {
7033 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7034 // of all the pasted entries.
7035 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7036 .do_paste(
7037 clipboard_string.text(),
7038 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7039 true,
7040 cx,
7041 ),
7042 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7043 }
7044 }
7045 }
7046
7047 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7048 if self.read_only(cx) {
7049 return;
7050 }
7051
7052 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7053 if let Some((selections, _)) =
7054 self.selection_history.transaction(transaction_id).cloned()
7055 {
7056 self.change_selections(None, cx, |s| {
7057 s.select_anchors(selections.to_vec());
7058 });
7059 }
7060 self.request_autoscroll(Autoscroll::fit(), cx);
7061 self.unmark_text(cx);
7062 self.refresh_inline_completion(true, false, cx);
7063 cx.emit(EditorEvent::Edited { transaction_id });
7064 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7065 }
7066 }
7067
7068 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7069 if self.read_only(cx) {
7070 return;
7071 }
7072
7073 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7074 if let Some((_, Some(selections))) =
7075 self.selection_history.transaction(transaction_id).cloned()
7076 {
7077 self.change_selections(None, cx, |s| {
7078 s.select_anchors(selections.to_vec());
7079 });
7080 }
7081 self.request_autoscroll(Autoscroll::fit(), cx);
7082 self.unmark_text(cx);
7083 self.refresh_inline_completion(true, false, cx);
7084 cx.emit(EditorEvent::Edited { transaction_id });
7085 }
7086 }
7087
7088 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7089 self.buffer
7090 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7091 }
7092
7093 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7094 self.buffer
7095 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7096 }
7097
7098 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7099 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7100 let line_mode = s.line_mode;
7101 s.move_with(|map, selection| {
7102 let cursor = if selection.is_empty() && !line_mode {
7103 movement::left(map, selection.start)
7104 } else {
7105 selection.start
7106 };
7107 selection.collapse_to(cursor, SelectionGoal::None);
7108 });
7109 })
7110 }
7111
7112 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7113 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7114 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7115 })
7116 }
7117
7118 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7119 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7120 let line_mode = s.line_mode;
7121 s.move_with(|map, selection| {
7122 let cursor = if selection.is_empty() && !line_mode {
7123 movement::right(map, selection.end)
7124 } else {
7125 selection.end
7126 };
7127 selection.collapse_to(cursor, SelectionGoal::None)
7128 });
7129 })
7130 }
7131
7132 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7133 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7134 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7135 })
7136 }
7137
7138 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7139 if self.take_rename(true, cx).is_some() {
7140 return;
7141 }
7142
7143 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7144 cx.propagate();
7145 return;
7146 }
7147
7148 let text_layout_details = &self.text_layout_details(cx);
7149 let selection_count = self.selections.count();
7150 let first_selection = self.selections.first_anchor();
7151
7152 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7153 let line_mode = s.line_mode;
7154 s.move_with(|map, selection| {
7155 if !selection.is_empty() && !line_mode {
7156 selection.goal = SelectionGoal::None;
7157 }
7158 let (cursor, goal) = movement::up(
7159 map,
7160 selection.start,
7161 selection.goal,
7162 false,
7163 text_layout_details,
7164 );
7165 selection.collapse_to(cursor, goal);
7166 });
7167 });
7168
7169 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7170 {
7171 cx.propagate();
7172 }
7173 }
7174
7175 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7176 if self.take_rename(true, cx).is_some() {
7177 return;
7178 }
7179
7180 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7181 cx.propagate();
7182 return;
7183 }
7184
7185 let text_layout_details = &self.text_layout_details(cx);
7186
7187 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7188 let line_mode = s.line_mode;
7189 s.move_with(|map, selection| {
7190 if !selection.is_empty() && !line_mode {
7191 selection.goal = SelectionGoal::None;
7192 }
7193 let (cursor, goal) = movement::up_by_rows(
7194 map,
7195 selection.start,
7196 action.lines,
7197 selection.goal,
7198 false,
7199 text_layout_details,
7200 );
7201 selection.collapse_to(cursor, goal);
7202 });
7203 })
7204 }
7205
7206 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7207 if self.take_rename(true, cx).is_some() {
7208 return;
7209 }
7210
7211 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7212 cx.propagate();
7213 return;
7214 }
7215
7216 let text_layout_details = &self.text_layout_details(cx);
7217
7218 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7219 let line_mode = s.line_mode;
7220 s.move_with(|map, selection| {
7221 if !selection.is_empty() && !line_mode {
7222 selection.goal = SelectionGoal::None;
7223 }
7224 let (cursor, goal) = movement::down_by_rows(
7225 map,
7226 selection.start,
7227 action.lines,
7228 selection.goal,
7229 false,
7230 text_layout_details,
7231 );
7232 selection.collapse_to(cursor, goal);
7233 });
7234 })
7235 }
7236
7237 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7238 let text_layout_details = &self.text_layout_details(cx);
7239 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7240 s.move_heads_with(|map, head, goal| {
7241 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7242 })
7243 })
7244 }
7245
7246 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7247 let text_layout_details = &self.text_layout_details(cx);
7248 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7249 s.move_heads_with(|map, head, goal| {
7250 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7251 })
7252 })
7253 }
7254
7255 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7256 let Some(row_count) = self.visible_row_count() else {
7257 return;
7258 };
7259
7260 let text_layout_details = &self.text_layout_details(cx);
7261
7262 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7263 s.move_heads_with(|map, head, goal| {
7264 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7265 })
7266 })
7267 }
7268
7269 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7270 if self.take_rename(true, cx).is_some() {
7271 return;
7272 }
7273
7274 if self
7275 .context_menu
7276 .borrow_mut()
7277 .as_mut()
7278 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7279 .unwrap_or(false)
7280 {
7281 return;
7282 }
7283
7284 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7285 cx.propagate();
7286 return;
7287 }
7288
7289 let Some(row_count) = self.visible_row_count() else {
7290 return;
7291 };
7292
7293 let autoscroll = if action.center_cursor {
7294 Autoscroll::center()
7295 } else {
7296 Autoscroll::fit()
7297 };
7298
7299 let text_layout_details = &self.text_layout_details(cx);
7300
7301 self.change_selections(Some(autoscroll), cx, |s| {
7302 let line_mode = s.line_mode;
7303 s.move_with(|map, selection| {
7304 if !selection.is_empty() && !line_mode {
7305 selection.goal = SelectionGoal::None;
7306 }
7307 let (cursor, goal) = movement::up_by_rows(
7308 map,
7309 selection.end,
7310 row_count,
7311 selection.goal,
7312 false,
7313 text_layout_details,
7314 );
7315 selection.collapse_to(cursor, goal);
7316 });
7317 });
7318 }
7319
7320 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7321 let text_layout_details = &self.text_layout_details(cx);
7322 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7323 s.move_heads_with(|map, head, goal| {
7324 movement::up(map, head, goal, false, text_layout_details)
7325 })
7326 })
7327 }
7328
7329 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7330 self.take_rename(true, cx);
7331
7332 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7333 cx.propagate();
7334 return;
7335 }
7336
7337 let text_layout_details = &self.text_layout_details(cx);
7338 let selection_count = self.selections.count();
7339 let first_selection = self.selections.first_anchor();
7340
7341 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7342 let line_mode = s.line_mode;
7343 s.move_with(|map, selection| {
7344 if !selection.is_empty() && !line_mode {
7345 selection.goal = SelectionGoal::None;
7346 }
7347 let (cursor, goal) = movement::down(
7348 map,
7349 selection.end,
7350 selection.goal,
7351 false,
7352 text_layout_details,
7353 );
7354 selection.collapse_to(cursor, goal);
7355 });
7356 });
7357
7358 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7359 {
7360 cx.propagate();
7361 }
7362 }
7363
7364 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7365 let Some(row_count) = self.visible_row_count() else {
7366 return;
7367 };
7368
7369 let text_layout_details = &self.text_layout_details(cx);
7370
7371 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7372 s.move_heads_with(|map, head, goal| {
7373 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7374 })
7375 })
7376 }
7377
7378 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7379 if self.take_rename(true, cx).is_some() {
7380 return;
7381 }
7382
7383 if self
7384 .context_menu
7385 .borrow_mut()
7386 .as_mut()
7387 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7388 .unwrap_or(false)
7389 {
7390 return;
7391 }
7392
7393 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7394 cx.propagate();
7395 return;
7396 }
7397
7398 let Some(row_count) = self.visible_row_count() else {
7399 return;
7400 };
7401
7402 let autoscroll = if action.center_cursor {
7403 Autoscroll::center()
7404 } else {
7405 Autoscroll::fit()
7406 };
7407
7408 let text_layout_details = &self.text_layout_details(cx);
7409 self.change_selections(Some(autoscroll), cx, |s| {
7410 let line_mode = s.line_mode;
7411 s.move_with(|map, selection| {
7412 if !selection.is_empty() && !line_mode {
7413 selection.goal = SelectionGoal::None;
7414 }
7415 let (cursor, goal) = movement::down_by_rows(
7416 map,
7417 selection.end,
7418 row_count,
7419 selection.goal,
7420 false,
7421 text_layout_details,
7422 );
7423 selection.collapse_to(cursor, goal);
7424 });
7425 });
7426 }
7427
7428 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7429 let text_layout_details = &self.text_layout_details(cx);
7430 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7431 s.move_heads_with(|map, head, goal| {
7432 movement::down(map, head, goal, false, text_layout_details)
7433 })
7434 });
7435 }
7436
7437 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7438 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7439 context_menu.select_first(self.completion_provider.as_deref(), cx);
7440 }
7441 }
7442
7443 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7444 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7445 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7446 }
7447 }
7448
7449 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7450 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7451 context_menu.select_next(self.completion_provider.as_deref(), cx);
7452 }
7453 }
7454
7455 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7456 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7457 context_menu.select_last(self.completion_provider.as_deref(), cx);
7458 }
7459 }
7460
7461 pub fn move_to_previous_word_start(
7462 &mut self,
7463 _: &MoveToPreviousWordStart,
7464 cx: &mut ViewContext<Self>,
7465 ) {
7466 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7467 s.move_cursors_with(|map, head, _| {
7468 (
7469 movement::previous_word_start(map, head),
7470 SelectionGoal::None,
7471 )
7472 });
7473 })
7474 }
7475
7476 pub fn move_to_previous_subword_start(
7477 &mut self,
7478 _: &MoveToPreviousSubwordStart,
7479 cx: &mut ViewContext<Self>,
7480 ) {
7481 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7482 s.move_cursors_with(|map, head, _| {
7483 (
7484 movement::previous_subword_start(map, head),
7485 SelectionGoal::None,
7486 )
7487 });
7488 })
7489 }
7490
7491 pub fn select_to_previous_word_start(
7492 &mut self,
7493 _: &SelectToPreviousWordStart,
7494 cx: &mut ViewContext<Self>,
7495 ) {
7496 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7497 s.move_heads_with(|map, head, _| {
7498 (
7499 movement::previous_word_start(map, head),
7500 SelectionGoal::None,
7501 )
7502 });
7503 })
7504 }
7505
7506 pub fn select_to_previous_subword_start(
7507 &mut self,
7508 _: &SelectToPreviousSubwordStart,
7509 cx: &mut ViewContext<Self>,
7510 ) {
7511 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7512 s.move_heads_with(|map, head, _| {
7513 (
7514 movement::previous_subword_start(map, head),
7515 SelectionGoal::None,
7516 )
7517 });
7518 })
7519 }
7520
7521 pub fn delete_to_previous_word_start(
7522 &mut self,
7523 action: &DeleteToPreviousWordStart,
7524 cx: &mut ViewContext<Self>,
7525 ) {
7526 self.transact(cx, |this, cx| {
7527 this.select_autoclose_pair(cx);
7528 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7529 let line_mode = s.line_mode;
7530 s.move_with(|map, selection| {
7531 if selection.is_empty() && !line_mode {
7532 let cursor = if action.ignore_newlines {
7533 movement::previous_word_start(map, selection.head())
7534 } else {
7535 movement::previous_word_start_or_newline(map, selection.head())
7536 };
7537 selection.set_head(cursor, SelectionGoal::None);
7538 }
7539 });
7540 });
7541 this.insert("", cx);
7542 });
7543 }
7544
7545 pub fn delete_to_previous_subword_start(
7546 &mut self,
7547 _: &DeleteToPreviousSubwordStart,
7548 cx: &mut ViewContext<Self>,
7549 ) {
7550 self.transact(cx, |this, cx| {
7551 this.select_autoclose_pair(cx);
7552 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7553 let line_mode = s.line_mode;
7554 s.move_with(|map, selection| {
7555 if selection.is_empty() && !line_mode {
7556 let cursor = movement::previous_subword_start(map, selection.head());
7557 selection.set_head(cursor, SelectionGoal::None);
7558 }
7559 });
7560 });
7561 this.insert("", cx);
7562 });
7563 }
7564
7565 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7566 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7567 s.move_cursors_with(|map, head, _| {
7568 (movement::next_word_end(map, head), SelectionGoal::None)
7569 });
7570 })
7571 }
7572
7573 pub fn move_to_next_subword_end(
7574 &mut self,
7575 _: &MoveToNextSubwordEnd,
7576 cx: &mut ViewContext<Self>,
7577 ) {
7578 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7579 s.move_cursors_with(|map, head, _| {
7580 (movement::next_subword_end(map, head), SelectionGoal::None)
7581 });
7582 })
7583 }
7584
7585 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7586 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7587 s.move_heads_with(|map, head, _| {
7588 (movement::next_word_end(map, head), SelectionGoal::None)
7589 });
7590 })
7591 }
7592
7593 pub fn select_to_next_subword_end(
7594 &mut self,
7595 _: &SelectToNextSubwordEnd,
7596 cx: &mut ViewContext<Self>,
7597 ) {
7598 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7599 s.move_heads_with(|map, head, _| {
7600 (movement::next_subword_end(map, head), SelectionGoal::None)
7601 });
7602 })
7603 }
7604
7605 pub fn delete_to_next_word_end(
7606 &mut self,
7607 action: &DeleteToNextWordEnd,
7608 cx: &mut ViewContext<Self>,
7609 ) {
7610 self.transact(cx, |this, cx| {
7611 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7612 let line_mode = s.line_mode;
7613 s.move_with(|map, selection| {
7614 if selection.is_empty() && !line_mode {
7615 let cursor = if action.ignore_newlines {
7616 movement::next_word_end(map, selection.head())
7617 } else {
7618 movement::next_word_end_or_newline(map, selection.head())
7619 };
7620 selection.set_head(cursor, SelectionGoal::None);
7621 }
7622 });
7623 });
7624 this.insert("", cx);
7625 });
7626 }
7627
7628 pub fn delete_to_next_subword_end(
7629 &mut self,
7630 _: &DeleteToNextSubwordEnd,
7631 cx: &mut ViewContext<Self>,
7632 ) {
7633 self.transact(cx, |this, cx| {
7634 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7635 s.move_with(|map, selection| {
7636 if selection.is_empty() {
7637 let cursor = movement::next_subword_end(map, selection.head());
7638 selection.set_head(cursor, SelectionGoal::None);
7639 }
7640 });
7641 });
7642 this.insert("", cx);
7643 });
7644 }
7645
7646 pub fn move_to_beginning_of_line(
7647 &mut self,
7648 action: &MoveToBeginningOfLine,
7649 cx: &mut ViewContext<Self>,
7650 ) {
7651 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7652 s.move_cursors_with(|map, head, _| {
7653 (
7654 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7655 SelectionGoal::None,
7656 )
7657 });
7658 })
7659 }
7660
7661 pub fn select_to_beginning_of_line(
7662 &mut self,
7663 action: &SelectToBeginningOfLine,
7664 cx: &mut ViewContext<Self>,
7665 ) {
7666 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7667 s.move_heads_with(|map, head, _| {
7668 (
7669 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7670 SelectionGoal::None,
7671 )
7672 });
7673 });
7674 }
7675
7676 pub fn delete_to_beginning_of_line(
7677 &mut self,
7678 _: &DeleteToBeginningOfLine,
7679 cx: &mut ViewContext<Self>,
7680 ) {
7681 self.transact(cx, |this, cx| {
7682 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7683 s.move_with(|_, selection| {
7684 selection.reversed = true;
7685 });
7686 });
7687
7688 this.select_to_beginning_of_line(
7689 &SelectToBeginningOfLine {
7690 stop_at_soft_wraps: false,
7691 },
7692 cx,
7693 );
7694 this.backspace(&Backspace, cx);
7695 });
7696 }
7697
7698 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7699 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7700 s.move_cursors_with(|map, head, _| {
7701 (
7702 movement::line_end(map, head, action.stop_at_soft_wraps),
7703 SelectionGoal::None,
7704 )
7705 });
7706 })
7707 }
7708
7709 pub fn select_to_end_of_line(
7710 &mut self,
7711 action: &SelectToEndOfLine,
7712 cx: &mut ViewContext<Self>,
7713 ) {
7714 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7715 s.move_heads_with(|map, head, _| {
7716 (
7717 movement::line_end(map, head, action.stop_at_soft_wraps),
7718 SelectionGoal::None,
7719 )
7720 });
7721 })
7722 }
7723
7724 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7725 self.transact(cx, |this, cx| {
7726 this.select_to_end_of_line(
7727 &SelectToEndOfLine {
7728 stop_at_soft_wraps: false,
7729 },
7730 cx,
7731 );
7732 this.delete(&Delete, cx);
7733 });
7734 }
7735
7736 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7737 self.transact(cx, |this, cx| {
7738 this.select_to_end_of_line(
7739 &SelectToEndOfLine {
7740 stop_at_soft_wraps: false,
7741 },
7742 cx,
7743 );
7744 this.cut(&Cut, cx);
7745 });
7746 }
7747
7748 pub fn move_to_start_of_paragraph(
7749 &mut self,
7750 _: &MoveToStartOfParagraph,
7751 cx: &mut ViewContext<Self>,
7752 ) {
7753 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7754 cx.propagate();
7755 return;
7756 }
7757
7758 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7759 s.move_with(|map, selection| {
7760 selection.collapse_to(
7761 movement::start_of_paragraph(map, selection.head(), 1),
7762 SelectionGoal::None,
7763 )
7764 });
7765 })
7766 }
7767
7768 pub fn move_to_end_of_paragraph(
7769 &mut self,
7770 _: &MoveToEndOfParagraph,
7771 cx: &mut ViewContext<Self>,
7772 ) {
7773 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7774 cx.propagate();
7775 return;
7776 }
7777
7778 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7779 s.move_with(|map, selection| {
7780 selection.collapse_to(
7781 movement::end_of_paragraph(map, selection.head(), 1),
7782 SelectionGoal::None,
7783 )
7784 });
7785 })
7786 }
7787
7788 pub fn select_to_start_of_paragraph(
7789 &mut self,
7790 _: &SelectToStartOfParagraph,
7791 cx: &mut ViewContext<Self>,
7792 ) {
7793 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7794 cx.propagate();
7795 return;
7796 }
7797
7798 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7799 s.move_heads_with(|map, head, _| {
7800 (
7801 movement::start_of_paragraph(map, head, 1),
7802 SelectionGoal::None,
7803 )
7804 });
7805 })
7806 }
7807
7808 pub fn select_to_end_of_paragraph(
7809 &mut self,
7810 _: &SelectToEndOfParagraph,
7811 cx: &mut ViewContext<Self>,
7812 ) {
7813 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7814 cx.propagate();
7815 return;
7816 }
7817
7818 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7819 s.move_heads_with(|map, head, _| {
7820 (
7821 movement::end_of_paragraph(map, head, 1),
7822 SelectionGoal::None,
7823 )
7824 });
7825 })
7826 }
7827
7828 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
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.select_ranges(vec![0..0]);
7836 });
7837 }
7838
7839 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7840 let mut selection = self.selections.last::<Point>(cx);
7841 selection.set_head(Point::zero(), SelectionGoal::None);
7842
7843 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7844 s.select(vec![selection]);
7845 });
7846 }
7847
7848 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7849 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7850 cx.propagate();
7851 return;
7852 }
7853
7854 let cursor = self.buffer.read(cx).read(cx).len();
7855 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7856 s.select_ranges(vec![cursor..cursor])
7857 });
7858 }
7859
7860 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7861 self.nav_history = nav_history;
7862 }
7863
7864 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7865 self.nav_history.as_ref()
7866 }
7867
7868 fn push_to_nav_history(
7869 &mut self,
7870 cursor_anchor: Anchor,
7871 new_position: Option<Point>,
7872 cx: &mut ViewContext<Self>,
7873 ) {
7874 if let Some(nav_history) = self.nav_history.as_mut() {
7875 let buffer = self.buffer.read(cx).read(cx);
7876 let cursor_position = cursor_anchor.to_point(&buffer);
7877 let scroll_state = self.scroll_manager.anchor();
7878 let scroll_top_row = scroll_state.top_row(&buffer);
7879 drop(buffer);
7880
7881 if let Some(new_position) = new_position {
7882 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7883 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7884 return;
7885 }
7886 }
7887
7888 nav_history.push(
7889 Some(NavigationData {
7890 cursor_anchor,
7891 cursor_position,
7892 scroll_anchor: scroll_state,
7893 scroll_top_row,
7894 }),
7895 cx,
7896 );
7897 }
7898 }
7899
7900 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7901 let buffer = self.buffer.read(cx).snapshot(cx);
7902 let mut selection = self.selections.first::<usize>(cx);
7903 selection.set_head(buffer.len(), SelectionGoal::None);
7904 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7905 s.select(vec![selection]);
7906 });
7907 }
7908
7909 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7910 let end = self.buffer.read(cx).read(cx).len();
7911 self.change_selections(None, cx, |s| {
7912 s.select_ranges(vec![0..end]);
7913 });
7914 }
7915
7916 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7917 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7918 let mut selections = self.selections.all::<Point>(cx);
7919 let max_point = display_map.buffer_snapshot.max_point();
7920 for selection in &mut selections {
7921 let rows = selection.spanned_rows(true, &display_map);
7922 selection.start = Point::new(rows.start.0, 0);
7923 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7924 selection.reversed = false;
7925 }
7926 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7927 s.select(selections);
7928 });
7929 }
7930
7931 pub fn split_selection_into_lines(
7932 &mut self,
7933 _: &SplitSelectionIntoLines,
7934 cx: &mut ViewContext<Self>,
7935 ) {
7936 let mut to_unfold = Vec::new();
7937 let mut new_selection_ranges = Vec::new();
7938 {
7939 let selections = self.selections.all::<Point>(cx);
7940 let buffer = self.buffer.read(cx).read(cx);
7941 for selection in selections {
7942 for row in selection.start.row..selection.end.row {
7943 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7944 new_selection_ranges.push(cursor..cursor);
7945 }
7946 new_selection_ranges.push(selection.end..selection.end);
7947 to_unfold.push(selection.start..selection.end);
7948 }
7949 }
7950 self.unfold_ranges(&to_unfold, true, true, cx);
7951 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7952 s.select_ranges(new_selection_ranges);
7953 });
7954 }
7955
7956 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7957 self.add_selection(true, cx);
7958 }
7959
7960 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7961 self.add_selection(false, cx);
7962 }
7963
7964 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7965 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7966 let mut selections = self.selections.all::<Point>(cx);
7967 let text_layout_details = self.text_layout_details(cx);
7968 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7969 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7970 let range = oldest_selection.display_range(&display_map).sorted();
7971
7972 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7973 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7974 let positions = start_x.min(end_x)..start_x.max(end_x);
7975
7976 selections.clear();
7977 let mut stack = Vec::new();
7978 for row in range.start.row().0..=range.end.row().0 {
7979 if let Some(selection) = self.selections.build_columnar_selection(
7980 &display_map,
7981 DisplayRow(row),
7982 &positions,
7983 oldest_selection.reversed,
7984 &text_layout_details,
7985 ) {
7986 stack.push(selection.id);
7987 selections.push(selection);
7988 }
7989 }
7990
7991 if above {
7992 stack.reverse();
7993 }
7994
7995 AddSelectionsState { above, stack }
7996 });
7997
7998 let last_added_selection = *state.stack.last().unwrap();
7999 let mut new_selections = Vec::new();
8000 if above == state.above {
8001 let end_row = if above {
8002 DisplayRow(0)
8003 } else {
8004 display_map.max_point().row()
8005 };
8006
8007 'outer: for selection in selections {
8008 if selection.id == last_added_selection {
8009 let range = selection.display_range(&display_map).sorted();
8010 debug_assert_eq!(range.start.row(), range.end.row());
8011 let mut row = range.start.row();
8012 let positions =
8013 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8014 px(start)..px(end)
8015 } else {
8016 let start_x =
8017 display_map.x_for_display_point(range.start, &text_layout_details);
8018 let end_x =
8019 display_map.x_for_display_point(range.end, &text_layout_details);
8020 start_x.min(end_x)..start_x.max(end_x)
8021 };
8022
8023 while row != end_row {
8024 if above {
8025 row.0 -= 1;
8026 } else {
8027 row.0 += 1;
8028 }
8029
8030 if let Some(new_selection) = self.selections.build_columnar_selection(
8031 &display_map,
8032 row,
8033 &positions,
8034 selection.reversed,
8035 &text_layout_details,
8036 ) {
8037 state.stack.push(new_selection.id);
8038 if above {
8039 new_selections.push(new_selection);
8040 new_selections.push(selection);
8041 } else {
8042 new_selections.push(selection);
8043 new_selections.push(new_selection);
8044 }
8045
8046 continue 'outer;
8047 }
8048 }
8049 }
8050
8051 new_selections.push(selection);
8052 }
8053 } else {
8054 new_selections = selections;
8055 new_selections.retain(|s| s.id != last_added_selection);
8056 state.stack.pop();
8057 }
8058
8059 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8060 s.select(new_selections);
8061 });
8062 if state.stack.len() > 1 {
8063 self.add_selections_state = Some(state);
8064 }
8065 }
8066
8067 pub fn select_next_match_internal(
8068 &mut self,
8069 display_map: &DisplaySnapshot,
8070 replace_newest: bool,
8071 autoscroll: Option<Autoscroll>,
8072 cx: &mut ViewContext<Self>,
8073 ) -> Result<()> {
8074 fn select_next_match_ranges(
8075 this: &mut Editor,
8076 range: Range<usize>,
8077 replace_newest: bool,
8078 auto_scroll: Option<Autoscroll>,
8079 cx: &mut ViewContext<Editor>,
8080 ) {
8081 this.unfold_ranges(&[range.clone()], false, true, cx);
8082 this.change_selections(auto_scroll, cx, |s| {
8083 if replace_newest {
8084 s.delete(s.newest_anchor().id);
8085 }
8086 s.insert_range(range.clone());
8087 });
8088 }
8089
8090 let buffer = &display_map.buffer_snapshot;
8091 let mut selections = self.selections.all::<usize>(cx);
8092 if let Some(mut select_next_state) = self.select_next_state.take() {
8093 let query = &select_next_state.query;
8094 if !select_next_state.done {
8095 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8096 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8097 let mut next_selected_range = None;
8098
8099 let bytes_after_last_selection =
8100 buffer.bytes_in_range(last_selection.end..buffer.len());
8101 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8102 let query_matches = query
8103 .stream_find_iter(bytes_after_last_selection)
8104 .map(|result| (last_selection.end, result))
8105 .chain(
8106 query
8107 .stream_find_iter(bytes_before_first_selection)
8108 .map(|result| (0, result)),
8109 );
8110
8111 for (start_offset, query_match) in query_matches {
8112 let query_match = query_match.unwrap(); // can only fail due to I/O
8113 let offset_range =
8114 start_offset + query_match.start()..start_offset + query_match.end();
8115 let display_range = offset_range.start.to_display_point(display_map)
8116 ..offset_range.end.to_display_point(display_map);
8117
8118 if !select_next_state.wordwise
8119 || (!movement::is_inside_word(display_map, display_range.start)
8120 && !movement::is_inside_word(display_map, display_range.end))
8121 {
8122 // TODO: This is n^2, because we might check all the selections
8123 if !selections
8124 .iter()
8125 .any(|selection| selection.range().overlaps(&offset_range))
8126 {
8127 next_selected_range = Some(offset_range);
8128 break;
8129 }
8130 }
8131 }
8132
8133 if let Some(next_selected_range) = next_selected_range {
8134 select_next_match_ranges(
8135 self,
8136 next_selected_range,
8137 replace_newest,
8138 autoscroll,
8139 cx,
8140 );
8141 } else {
8142 select_next_state.done = true;
8143 }
8144 }
8145
8146 self.select_next_state = Some(select_next_state);
8147 } else {
8148 let mut only_carets = true;
8149 let mut same_text_selected = true;
8150 let mut selected_text = None;
8151
8152 let mut selections_iter = selections.iter().peekable();
8153 while let Some(selection) = selections_iter.next() {
8154 if selection.start != selection.end {
8155 only_carets = false;
8156 }
8157
8158 if same_text_selected {
8159 if selected_text.is_none() {
8160 selected_text =
8161 Some(buffer.text_for_range(selection.range()).collect::<String>());
8162 }
8163
8164 if let Some(next_selection) = selections_iter.peek() {
8165 if next_selection.range().len() == selection.range().len() {
8166 let next_selected_text = buffer
8167 .text_for_range(next_selection.range())
8168 .collect::<String>();
8169 if Some(next_selected_text) != selected_text {
8170 same_text_selected = false;
8171 selected_text = None;
8172 }
8173 } else {
8174 same_text_selected = false;
8175 selected_text = None;
8176 }
8177 }
8178 }
8179 }
8180
8181 if only_carets {
8182 for selection in &mut selections {
8183 let word_range = movement::surrounding_word(
8184 display_map,
8185 selection.start.to_display_point(display_map),
8186 );
8187 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8188 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8189 selection.goal = SelectionGoal::None;
8190 selection.reversed = false;
8191 select_next_match_ranges(
8192 self,
8193 selection.start..selection.end,
8194 replace_newest,
8195 autoscroll,
8196 cx,
8197 );
8198 }
8199
8200 if selections.len() == 1 {
8201 let selection = selections
8202 .last()
8203 .expect("ensured that there's only one selection");
8204 let query = buffer
8205 .text_for_range(selection.start..selection.end)
8206 .collect::<String>();
8207 let is_empty = query.is_empty();
8208 let select_state = SelectNextState {
8209 query: AhoCorasick::new(&[query])?,
8210 wordwise: true,
8211 done: is_empty,
8212 };
8213 self.select_next_state = Some(select_state);
8214 } else {
8215 self.select_next_state = None;
8216 }
8217 } else if let Some(selected_text) = selected_text {
8218 self.select_next_state = Some(SelectNextState {
8219 query: AhoCorasick::new(&[selected_text])?,
8220 wordwise: false,
8221 done: false,
8222 });
8223 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8224 }
8225 }
8226 Ok(())
8227 }
8228
8229 pub fn select_all_matches(
8230 &mut self,
8231 _action: &SelectAllMatches,
8232 cx: &mut ViewContext<Self>,
8233 ) -> Result<()> {
8234 self.push_to_selection_history();
8235 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8236
8237 self.select_next_match_internal(&display_map, false, None, cx)?;
8238 let Some(select_next_state) = self.select_next_state.as_mut() else {
8239 return Ok(());
8240 };
8241 if select_next_state.done {
8242 return Ok(());
8243 }
8244
8245 let mut new_selections = self.selections.all::<usize>(cx);
8246
8247 let buffer = &display_map.buffer_snapshot;
8248 let query_matches = select_next_state
8249 .query
8250 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8251
8252 for query_match in query_matches {
8253 let query_match = query_match.unwrap(); // can only fail due to I/O
8254 let offset_range = query_match.start()..query_match.end();
8255 let display_range = offset_range.start.to_display_point(&display_map)
8256 ..offset_range.end.to_display_point(&display_map);
8257
8258 if !select_next_state.wordwise
8259 || (!movement::is_inside_word(&display_map, display_range.start)
8260 && !movement::is_inside_word(&display_map, display_range.end))
8261 {
8262 self.selections.change_with(cx, |selections| {
8263 new_selections.push(Selection {
8264 id: selections.new_selection_id(),
8265 start: offset_range.start,
8266 end: offset_range.end,
8267 reversed: false,
8268 goal: SelectionGoal::None,
8269 });
8270 });
8271 }
8272 }
8273
8274 new_selections.sort_by_key(|selection| selection.start);
8275 let mut ix = 0;
8276 while ix + 1 < new_selections.len() {
8277 let current_selection = &new_selections[ix];
8278 let next_selection = &new_selections[ix + 1];
8279 if current_selection.range().overlaps(&next_selection.range()) {
8280 if current_selection.id < next_selection.id {
8281 new_selections.remove(ix + 1);
8282 } else {
8283 new_selections.remove(ix);
8284 }
8285 } else {
8286 ix += 1;
8287 }
8288 }
8289
8290 select_next_state.done = true;
8291 self.unfold_ranges(
8292 &new_selections
8293 .iter()
8294 .map(|selection| selection.range())
8295 .collect::<Vec<_>>(),
8296 false,
8297 false,
8298 cx,
8299 );
8300 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8301 selections.select(new_selections)
8302 });
8303
8304 Ok(())
8305 }
8306
8307 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8308 self.push_to_selection_history();
8309 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8310 self.select_next_match_internal(
8311 &display_map,
8312 action.replace_newest,
8313 Some(Autoscroll::newest()),
8314 cx,
8315 )?;
8316 Ok(())
8317 }
8318
8319 pub fn select_previous(
8320 &mut self,
8321 action: &SelectPrevious,
8322 cx: &mut ViewContext<Self>,
8323 ) -> Result<()> {
8324 self.push_to_selection_history();
8325 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8326 let buffer = &display_map.buffer_snapshot;
8327 let mut selections = self.selections.all::<usize>(cx);
8328 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8329 let query = &select_prev_state.query;
8330 if !select_prev_state.done {
8331 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8332 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8333 let mut next_selected_range = None;
8334 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8335 let bytes_before_last_selection =
8336 buffer.reversed_bytes_in_range(0..last_selection.start);
8337 let bytes_after_first_selection =
8338 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8339 let query_matches = query
8340 .stream_find_iter(bytes_before_last_selection)
8341 .map(|result| (last_selection.start, result))
8342 .chain(
8343 query
8344 .stream_find_iter(bytes_after_first_selection)
8345 .map(|result| (buffer.len(), result)),
8346 );
8347 for (end_offset, query_match) in query_matches {
8348 let query_match = query_match.unwrap(); // can only fail due to I/O
8349 let offset_range =
8350 end_offset - query_match.end()..end_offset - query_match.start();
8351 let display_range = offset_range.start.to_display_point(&display_map)
8352 ..offset_range.end.to_display_point(&display_map);
8353
8354 if !select_prev_state.wordwise
8355 || (!movement::is_inside_word(&display_map, display_range.start)
8356 && !movement::is_inside_word(&display_map, display_range.end))
8357 {
8358 next_selected_range = Some(offset_range);
8359 break;
8360 }
8361 }
8362
8363 if let Some(next_selected_range) = next_selected_range {
8364 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8365 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8366 if action.replace_newest {
8367 s.delete(s.newest_anchor().id);
8368 }
8369 s.insert_range(next_selected_range);
8370 });
8371 } else {
8372 select_prev_state.done = true;
8373 }
8374 }
8375
8376 self.select_prev_state = Some(select_prev_state);
8377 } else {
8378 let mut only_carets = true;
8379 let mut same_text_selected = true;
8380 let mut selected_text = None;
8381
8382 let mut selections_iter = selections.iter().peekable();
8383 while let Some(selection) = selections_iter.next() {
8384 if selection.start != selection.end {
8385 only_carets = false;
8386 }
8387
8388 if same_text_selected {
8389 if selected_text.is_none() {
8390 selected_text =
8391 Some(buffer.text_for_range(selection.range()).collect::<String>());
8392 }
8393
8394 if let Some(next_selection) = selections_iter.peek() {
8395 if next_selection.range().len() == selection.range().len() {
8396 let next_selected_text = buffer
8397 .text_for_range(next_selection.range())
8398 .collect::<String>();
8399 if Some(next_selected_text) != selected_text {
8400 same_text_selected = false;
8401 selected_text = None;
8402 }
8403 } else {
8404 same_text_selected = false;
8405 selected_text = None;
8406 }
8407 }
8408 }
8409 }
8410
8411 if only_carets {
8412 for selection in &mut selections {
8413 let word_range = movement::surrounding_word(
8414 &display_map,
8415 selection.start.to_display_point(&display_map),
8416 );
8417 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8418 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8419 selection.goal = SelectionGoal::None;
8420 selection.reversed = false;
8421 }
8422 if selections.len() == 1 {
8423 let selection = selections
8424 .last()
8425 .expect("ensured that there's only one selection");
8426 let query = buffer
8427 .text_for_range(selection.start..selection.end)
8428 .collect::<String>();
8429 let is_empty = query.is_empty();
8430 let select_state = SelectNextState {
8431 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8432 wordwise: true,
8433 done: is_empty,
8434 };
8435 self.select_prev_state = Some(select_state);
8436 } else {
8437 self.select_prev_state = None;
8438 }
8439
8440 self.unfold_ranges(
8441 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8442 false,
8443 true,
8444 cx,
8445 );
8446 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8447 s.select(selections);
8448 });
8449 } else if let Some(selected_text) = selected_text {
8450 self.select_prev_state = Some(SelectNextState {
8451 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8452 wordwise: false,
8453 done: false,
8454 });
8455 self.select_previous(action, cx)?;
8456 }
8457 }
8458 Ok(())
8459 }
8460
8461 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8462 if self.read_only(cx) {
8463 return;
8464 }
8465 let text_layout_details = &self.text_layout_details(cx);
8466 self.transact(cx, |this, cx| {
8467 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8468 let mut edits = Vec::new();
8469 let mut selection_edit_ranges = Vec::new();
8470 let mut last_toggled_row = None;
8471 let snapshot = this.buffer.read(cx).read(cx);
8472 let empty_str: Arc<str> = Arc::default();
8473 let mut suffixes_inserted = Vec::new();
8474 let ignore_indent = action.ignore_indent;
8475
8476 fn comment_prefix_range(
8477 snapshot: &MultiBufferSnapshot,
8478 row: MultiBufferRow,
8479 comment_prefix: &str,
8480 comment_prefix_whitespace: &str,
8481 ignore_indent: bool,
8482 ) -> Range<Point> {
8483 let indent_size = if ignore_indent {
8484 0
8485 } else {
8486 snapshot.indent_size_for_line(row).len
8487 };
8488
8489 let start = Point::new(row.0, indent_size);
8490
8491 let mut line_bytes = snapshot
8492 .bytes_in_range(start..snapshot.max_point())
8493 .flatten()
8494 .copied();
8495
8496 // If this line currently begins with the line comment prefix, then record
8497 // the range containing the prefix.
8498 if line_bytes
8499 .by_ref()
8500 .take(comment_prefix.len())
8501 .eq(comment_prefix.bytes())
8502 {
8503 // Include any whitespace that matches the comment prefix.
8504 let matching_whitespace_len = line_bytes
8505 .zip(comment_prefix_whitespace.bytes())
8506 .take_while(|(a, b)| a == b)
8507 .count() as u32;
8508 let end = Point::new(
8509 start.row,
8510 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8511 );
8512 start..end
8513 } else {
8514 start..start
8515 }
8516 }
8517
8518 fn comment_suffix_range(
8519 snapshot: &MultiBufferSnapshot,
8520 row: MultiBufferRow,
8521 comment_suffix: &str,
8522 comment_suffix_has_leading_space: bool,
8523 ) -> Range<Point> {
8524 let end = Point::new(row.0, snapshot.line_len(row));
8525 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8526
8527 let mut line_end_bytes = snapshot
8528 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8529 .flatten()
8530 .copied();
8531
8532 let leading_space_len = if suffix_start_column > 0
8533 && line_end_bytes.next() == Some(b' ')
8534 && comment_suffix_has_leading_space
8535 {
8536 1
8537 } else {
8538 0
8539 };
8540
8541 // If this line currently begins with the line comment prefix, then record
8542 // the range containing the prefix.
8543 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8544 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8545 start..end
8546 } else {
8547 end..end
8548 }
8549 }
8550
8551 // TODO: Handle selections that cross excerpts
8552 for selection in &mut selections {
8553 let start_column = snapshot
8554 .indent_size_for_line(MultiBufferRow(selection.start.row))
8555 .len;
8556 let language = if let Some(language) =
8557 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8558 {
8559 language
8560 } else {
8561 continue;
8562 };
8563
8564 selection_edit_ranges.clear();
8565
8566 // If multiple selections contain a given row, avoid processing that
8567 // row more than once.
8568 let mut start_row = MultiBufferRow(selection.start.row);
8569 if last_toggled_row == Some(start_row) {
8570 start_row = start_row.next_row();
8571 }
8572 let end_row =
8573 if selection.end.row > selection.start.row && selection.end.column == 0 {
8574 MultiBufferRow(selection.end.row - 1)
8575 } else {
8576 MultiBufferRow(selection.end.row)
8577 };
8578 last_toggled_row = Some(end_row);
8579
8580 if start_row > end_row {
8581 continue;
8582 }
8583
8584 // If the language has line comments, toggle those.
8585 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8586
8587 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8588 if ignore_indent {
8589 full_comment_prefixes = full_comment_prefixes
8590 .into_iter()
8591 .map(|s| Arc::from(s.trim_end()))
8592 .collect();
8593 }
8594
8595 if !full_comment_prefixes.is_empty() {
8596 let first_prefix = full_comment_prefixes
8597 .first()
8598 .expect("prefixes is non-empty");
8599 let prefix_trimmed_lengths = full_comment_prefixes
8600 .iter()
8601 .map(|p| p.trim_end_matches(' ').len())
8602 .collect::<SmallVec<[usize; 4]>>();
8603
8604 let mut all_selection_lines_are_comments = true;
8605
8606 for row in start_row.0..=end_row.0 {
8607 let row = MultiBufferRow(row);
8608 if start_row < end_row && snapshot.is_line_blank(row) {
8609 continue;
8610 }
8611
8612 let prefix_range = full_comment_prefixes
8613 .iter()
8614 .zip(prefix_trimmed_lengths.iter().copied())
8615 .map(|(prefix, trimmed_prefix_len)| {
8616 comment_prefix_range(
8617 snapshot.deref(),
8618 row,
8619 &prefix[..trimmed_prefix_len],
8620 &prefix[trimmed_prefix_len..],
8621 ignore_indent,
8622 )
8623 })
8624 .max_by_key(|range| range.end.column - range.start.column)
8625 .expect("prefixes is non-empty");
8626
8627 if prefix_range.is_empty() {
8628 all_selection_lines_are_comments = false;
8629 }
8630
8631 selection_edit_ranges.push(prefix_range);
8632 }
8633
8634 if all_selection_lines_are_comments {
8635 edits.extend(
8636 selection_edit_ranges
8637 .iter()
8638 .cloned()
8639 .map(|range| (range, empty_str.clone())),
8640 );
8641 } else {
8642 let min_column = selection_edit_ranges
8643 .iter()
8644 .map(|range| range.start.column)
8645 .min()
8646 .unwrap_or(0);
8647 edits.extend(selection_edit_ranges.iter().map(|range| {
8648 let position = Point::new(range.start.row, min_column);
8649 (position..position, first_prefix.clone())
8650 }));
8651 }
8652 } else if let Some((full_comment_prefix, comment_suffix)) =
8653 language.block_comment_delimiters()
8654 {
8655 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8656 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8657 let prefix_range = comment_prefix_range(
8658 snapshot.deref(),
8659 start_row,
8660 comment_prefix,
8661 comment_prefix_whitespace,
8662 ignore_indent,
8663 );
8664 let suffix_range = comment_suffix_range(
8665 snapshot.deref(),
8666 end_row,
8667 comment_suffix.trim_start_matches(' '),
8668 comment_suffix.starts_with(' '),
8669 );
8670
8671 if prefix_range.is_empty() || suffix_range.is_empty() {
8672 edits.push((
8673 prefix_range.start..prefix_range.start,
8674 full_comment_prefix.clone(),
8675 ));
8676 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8677 suffixes_inserted.push((end_row, comment_suffix.len()));
8678 } else {
8679 edits.push((prefix_range, empty_str.clone()));
8680 edits.push((suffix_range, empty_str.clone()));
8681 }
8682 } else {
8683 continue;
8684 }
8685 }
8686
8687 drop(snapshot);
8688 this.buffer.update(cx, |buffer, cx| {
8689 buffer.edit(edits, None, cx);
8690 });
8691
8692 // Adjust selections so that they end before any comment suffixes that
8693 // were inserted.
8694 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8695 let mut selections = this.selections.all::<Point>(cx);
8696 let snapshot = this.buffer.read(cx).read(cx);
8697 for selection in &mut selections {
8698 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8699 match row.cmp(&MultiBufferRow(selection.end.row)) {
8700 Ordering::Less => {
8701 suffixes_inserted.next();
8702 continue;
8703 }
8704 Ordering::Greater => break,
8705 Ordering::Equal => {
8706 if selection.end.column == snapshot.line_len(row) {
8707 if selection.is_empty() {
8708 selection.start.column -= suffix_len as u32;
8709 }
8710 selection.end.column -= suffix_len as u32;
8711 }
8712 break;
8713 }
8714 }
8715 }
8716 }
8717
8718 drop(snapshot);
8719 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8720
8721 let selections = this.selections.all::<Point>(cx);
8722 let selections_on_single_row = selections.windows(2).all(|selections| {
8723 selections[0].start.row == selections[1].start.row
8724 && selections[0].end.row == selections[1].end.row
8725 && selections[0].start.row == selections[0].end.row
8726 });
8727 let selections_selecting = selections
8728 .iter()
8729 .any(|selection| selection.start != selection.end);
8730 let advance_downwards = action.advance_downwards
8731 && selections_on_single_row
8732 && !selections_selecting
8733 && !matches!(this.mode, EditorMode::SingleLine { .. });
8734
8735 if advance_downwards {
8736 let snapshot = this.buffer.read(cx).snapshot(cx);
8737
8738 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8739 s.move_cursors_with(|display_snapshot, display_point, _| {
8740 let mut point = display_point.to_point(display_snapshot);
8741 point.row += 1;
8742 point = snapshot.clip_point(point, Bias::Left);
8743 let display_point = point.to_display_point(display_snapshot);
8744 let goal = SelectionGoal::HorizontalPosition(
8745 display_snapshot
8746 .x_for_display_point(display_point, text_layout_details)
8747 .into(),
8748 );
8749 (display_point, goal)
8750 })
8751 });
8752 }
8753 });
8754 }
8755
8756 pub fn select_enclosing_symbol(
8757 &mut self,
8758 _: &SelectEnclosingSymbol,
8759 cx: &mut ViewContext<Self>,
8760 ) {
8761 let buffer = self.buffer.read(cx).snapshot(cx);
8762 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8763
8764 fn update_selection(
8765 selection: &Selection<usize>,
8766 buffer_snap: &MultiBufferSnapshot,
8767 ) -> Option<Selection<usize>> {
8768 let cursor = selection.head();
8769 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8770 for symbol in symbols.iter().rev() {
8771 let start = symbol.range.start.to_offset(buffer_snap);
8772 let end = symbol.range.end.to_offset(buffer_snap);
8773 let new_range = start..end;
8774 if start < selection.start || end > selection.end {
8775 return Some(Selection {
8776 id: selection.id,
8777 start: new_range.start,
8778 end: new_range.end,
8779 goal: SelectionGoal::None,
8780 reversed: selection.reversed,
8781 });
8782 }
8783 }
8784 None
8785 }
8786
8787 let mut selected_larger_symbol = false;
8788 let new_selections = old_selections
8789 .iter()
8790 .map(|selection| match update_selection(selection, &buffer) {
8791 Some(new_selection) => {
8792 if new_selection.range() != selection.range() {
8793 selected_larger_symbol = true;
8794 }
8795 new_selection
8796 }
8797 None => selection.clone(),
8798 })
8799 .collect::<Vec<_>>();
8800
8801 if selected_larger_symbol {
8802 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8803 s.select(new_selections);
8804 });
8805 }
8806 }
8807
8808 pub fn select_larger_syntax_node(
8809 &mut self,
8810 _: &SelectLargerSyntaxNode,
8811 cx: &mut ViewContext<Self>,
8812 ) {
8813 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8814 let buffer = self.buffer.read(cx).snapshot(cx);
8815 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8816
8817 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8818 let mut selected_larger_node = false;
8819 let new_selections = old_selections
8820 .iter()
8821 .map(|selection| {
8822 let old_range = selection.start..selection.end;
8823 let mut new_range = old_range.clone();
8824 let mut new_node = None;
8825 while let Some((node, containing_range)) = buffer.syntax_ancestor(new_range.clone())
8826 {
8827 new_node = Some(node);
8828 new_range = containing_range;
8829 if !display_map.intersects_fold(new_range.start)
8830 && !display_map.intersects_fold(new_range.end)
8831 {
8832 break;
8833 }
8834 }
8835
8836 if let Some(node) = new_node {
8837 // Log the ancestor, to support using this action as a way to explore TreeSitter
8838 // nodes. Parent and grandparent are also logged because this operation will not
8839 // visit nodes that have the same range as their parent.
8840 log::info!("Node: {node:?}");
8841 let parent = node.parent();
8842 log::info!("Parent: {parent:?}");
8843 let grandparent = parent.and_then(|x| x.parent());
8844 log::info!("Grandparent: {grandparent:?}");
8845 }
8846
8847 selected_larger_node |= new_range != old_range;
8848 Selection {
8849 id: selection.id,
8850 start: new_range.start,
8851 end: new_range.end,
8852 goal: SelectionGoal::None,
8853 reversed: selection.reversed,
8854 }
8855 })
8856 .collect::<Vec<_>>();
8857
8858 if selected_larger_node {
8859 stack.push(old_selections);
8860 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8861 s.select(new_selections);
8862 });
8863 }
8864 self.select_larger_syntax_node_stack = stack;
8865 }
8866
8867 pub fn select_smaller_syntax_node(
8868 &mut self,
8869 _: &SelectSmallerSyntaxNode,
8870 cx: &mut ViewContext<Self>,
8871 ) {
8872 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8873 if let Some(selections) = stack.pop() {
8874 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8875 s.select(selections.to_vec());
8876 });
8877 }
8878 self.select_larger_syntax_node_stack = stack;
8879 }
8880
8881 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8882 if !EditorSettings::get_global(cx).gutter.runnables {
8883 self.clear_tasks();
8884 return Task::ready(());
8885 }
8886 let project = self.project.as_ref().map(Model::downgrade);
8887 cx.spawn(|this, mut cx| async move {
8888 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
8889 let Some(project) = project.and_then(|p| p.upgrade()) else {
8890 return;
8891 };
8892 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8893 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8894 }) else {
8895 return;
8896 };
8897
8898 let hide_runnables = project
8899 .update(&mut cx, |project, cx| {
8900 // Do not display any test indicators in non-dev server remote projects.
8901 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8902 })
8903 .unwrap_or(true);
8904 if hide_runnables {
8905 return;
8906 }
8907 let new_rows =
8908 cx.background_executor()
8909 .spawn({
8910 let snapshot = display_snapshot.clone();
8911 async move {
8912 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8913 }
8914 })
8915 .await;
8916 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8917
8918 this.update(&mut cx, |this, _| {
8919 this.clear_tasks();
8920 for (key, value) in rows {
8921 this.insert_tasks(key, value);
8922 }
8923 })
8924 .ok();
8925 })
8926 }
8927 fn fetch_runnable_ranges(
8928 snapshot: &DisplaySnapshot,
8929 range: Range<Anchor>,
8930 ) -> Vec<language::RunnableRange> {
8931 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8932 }
8933
8934 fn runnable_rows(
8935 project: Model<Project>,
8936 snapshot: DisplaySnapshot,
8937 runnable_ranges: Vec<RunnableRange>,
8938 mut cx: AsyncWindowContext,
8939 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8940 runnable_ranges
8941 .into_iter()
8942 .filter_map(|mut runnable| {
8943 let tasks = cx
8944 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8945 .ok()?;
8946 if tasks.is_empty() {
8947 return None;
8948 }
8949
8950 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8951
8952 let row = snapshot
8953 .buffer_snapshot
8954 .buffer_line_for_row(MultiBufferRow(point.row))?
8955 .1
8956 .start
8957 .row;
8958
8959 let context_range =
8960 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8961 Some((
8962 (runnable.buffer_id, row),
8963 RunnableTasks {
8964 templates: tasks,
8965 offset: MultiBufferOffset(runnable.run_range.start),
8966 context_range,
8967 column: point.column,
8968 extra_variables: runnable.extra_captures,
8969 },
8970 ))
8971 })
8972 .collect()
8973 }
8974
8975 fn templates_with_tags(
8976 project: &Model<Project>,
8977 runnable: &mut Runnable,
8978 cx: &WindowContext,
8979 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8980 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8981 let (worktree_id, file) = project
8982 .buffer_for_id(runnable.buffer, cx)
8983 .and_then(|buffer| buffer.read(cx).file())
8984 .map(|file| (file.worktree_id(cx), file.clone()))
8985 .unzip();
8986
8987 (
8988 project.task_store().read(cx).task_inventory().cloned(),
8989 worktree_id,
8990 file,
8991 )
8992 });
8993
8994 let tags = mem::take(&mut runnable.tags);
8995 let mut tags: Vec<_> = tags
8996 .into_iter()
8997 .flat_map(|tag| {
8998 let tag = tag.0.clone();
8999 inventory
9000 .as_ref()
9001 .into_iter()
9002 .flat_map(|inventory| {
9003 inventory.read(cx).list_tasks(
9004 file.clone(),
9005 Some(runnable.language.clone()),
9006 worktree_id,
9007 cx,
9008 )
9009 })
9010 .filter(move |(_, template)| {
9011 template.tags.iter().any(|source_tag| source_tag == &tag)
9012 })
9013 })
9014 .sorted_by_key(|(kind, _)| kind.to_owned())
9015 .collect();
9016 if let Some((leading_tag_source, _)) = tags.first() {
9017 // Strongest source wins; if we have worktree tag binding, prefer that to
9018 // global and language bindings;
9019 // if we have a global binding, prefer that to language binding.
9020 let first_mismatch = tags
9021 .iter()
9022 .position(|(tag_source, _)| tag_source != leading_tag_source);
9023 if let Some(index) = first_mismatch {
9024 tags.truncate(index);
9025 }
9026 }
9027
9028 tags
9029 }
9030
9031 pub fn move_to_enclosing_bracket(
9032 &mut self,
9033 _: &MoveToEnclosingBracket,
9034 cx: &mut ViewContext<Self>,
9035 ) {
9036 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9037 s.move_offsets_with(|snapshot, selection| {
9038 let Some(enclosing_bracket_ranges) =
9039 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9040 else {
9041 return;
9042 };
9043
9044 let mut best_length = usize::MAX;
9045 let mut best_inside = false;
9046 let mut best_in_bracket_range = false;
9047 let mut best_destination = None;
9048 for (open, close) in enclosing_bracket_ranges {
9049 let close = close.to_inclusive();
9050 let length = close.end() - open.start;
9051 let inside = selection.start >= open.end && selection.end <= *close.start();
9052 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9053 || close.contains(&selection.head());
9054
9055 // If best is next to a bracket and current isn't, skip
9056 if !in_bracket_range && best_in_bracket_range {
9057 continue;
9058 }
9059
9060 // Prefer smaller lengths unless best is inside and current isn't
9061 if length > best_length && (best_inside || !inside) {
9062 continue;
9063 }
9064
9065 best_length = length;
9066 best_inside = inside;
9067 best_in_bracket_range = in_bracket_range;
9068 best_destination = Some(
9069 if close.contains(&selection.start) && close.contains(&selection.end) {
9070 if inside {
9071 open.end
9072 } else {
9073 open.start
9074 }
9075 } else if inside {
9076 *close.start()
9077 } else {
9078 *close.end()
9079 },
9080 );
9081 }
9082
9083 if let Some(destination) = best_destination {
9084 selection.collapse_to(destination, SelectionGoal::None);
9085 }
9086 })
9087 });
9088 }
9089
9090 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9091 self.end_selection(cx);
9092 self.selection_history.mode = SelectionHistoryMode::Undoing;
9093 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9094 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9095 self.select_next_state = entry.select_next_state;
9096 self.select_prev_state = entry.select_prev_state;
9097 self.add_selections_state = entry.add_selections_state;
9098 self.request_autoscroll(Autoscroll::newest(), cx);
9099 }
9100 self.selection_history.mode = SelectionHistoryMode::Normal;
9101 }
9102
9103 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9104 self.end_selection(cx);
9105 self.selection_history.mode = SelectionHistoryMode::Redoing;
9106 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9107 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9108 self.select_next_state = entry.select_next_state;
9109 self.select_prev_state = entry.select_prev_state;
9110 self.add_selections_state = entry.add_selections_state;
9111 self.request_autoscroll(Autoscroll::newest(), cx);
9112 }
9113 self.selection_history.mode = SelectionHistoryMode::Normal;
9114 }
9115
9116 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9117 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9118 }
9119
9120 pub fn expand_excerpts_down(
9121 &mut self,
9122 action: &ExpandExcerptsDown,
9123 cx: &mut ViewContext<Self>,
9124 ) {
9125 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9126 }
9127
9128 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9129 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9130 }
9131
9132 pub fn expand_excerpts_for_direction(
9133 &mut self,
9134 lines: u32,
9135 direction: ExpandExcerptDirection,
9136 cx: &mut ViewContext<Self>,
9137 ) {
9138 let selections = self.selections.disjoint_anchors();
9139
9140 let lines = if lines == 0 {
9141 EditorSettings::get_global(cx).expand_excerpt_lines
9142 } else {
9143 lines
9144 };
9145
9146 self.buffer.update(cx, |buffer, cx| {
9147 let snapshot = buffer.snapshot(cx);
9148 let mut excerpt_ids = selections
9149 .iter()
9150 .flat_map(|selection| {
9151 snapshot
9152 .excerpts_for_range(selection.range())
9153 .map(|excerpt| excerpt.id())
9154 })
9155 .collect::<Vec<_>>();
9156 excerpt_ids.sort();
9157 excerpt_ids.dedup();
9158 buffer.expand_excerpts(excerpt_ids, lines, direction, cx)
9159 })
9160 }
9161
9162 pub fn expand_excerpt(
9163 &mut self,
9164 excerpt: ExcerptId,
9165 direction: ExpandExcerptDirection,
9166 cx: &mut ViewContext<Self>,
9167 ) {
9168 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9169 self.buffer.update(cx, |buffer, cx| {
9170 buffer.expand_excerpts([excerpt], lines, direction, cx)
9171 })
9172 }
9173
9174 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9175 self.go_to_diagnostic_impl(Direction::Next, cx)
9176 }
9177
9178 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9179 self.go_to_diagnostic_impl(Direction::Prev, cx)
9180 }
9181
9182 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9183 let buffer = self.buffer.read(cx).snapshot(cx);
9184 let selection = self.selections.newest::<usize>(cx);
9185
9186 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9187 if direction == Direction::Next {
9188 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9189 self.activate_diagnostics(popover.group_id(), cx);
9190 if let Some(active_diagnostics) = self.active_diagnostics.as_ref() {
9191 let primary_range_start = active_diagnostics.primary_range.start;
9192 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9193 let mut new_selection = s.newest_anchor().clone();
9194 new_selection.collapse_to(primary_range_start, SelectionGoal::None);
9195 s.select_anchors(vec![new_selection.clone()]);
9196 });
9197 }
9198 return;
9199 }
9200 }
9201
9202 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9203 active_diagnostics
9204 .primary_range
9205 .to_offset(&buffer)
9206 .to_inclusive()
9207 });
9208 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9209 if active_primary_range.contains(&selection.head()) {
9210 *active_primary_range.start()
9211 } else {
9212 selection.head()
9213 }
9214 } else {
9215 selection.head()
9216 };
9217 let snapshot = self.snapshot(cx);
9218 loop {
9219 let diagnostics = if direction == Direction::Prev {
9220 buffer
9221 .diagnostics_in_range(0..search_start, true)
9222 .map(|DiagnosticEntry { diagnostic, range }| DiagnosticEntry {
9223 diagnostic,
9224 range: range.to_offset(&buffer),
9225 })
9226 .collect::<Vec<_>>()
9227 } else {
9228 buffer
9229 .diagnostics_in_range(search_start..buffer.len(), false)
9230 .map(|DiagnosticEntry { diagnostic, range }| DiagnosticEntry {
9231 diagnostic,
9232 range: range.to_offset(&buffer),
9233 })
9234 .collect::<Vec<_>>()
9235 }
9236 .into_iter()
9237 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9238 let group = diagnostics
9239 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9240 // be sorted in a stable way
9241 // skip until we are at current active diagnostic, if it exists
9242 .skip_while(|entry| {
9243 (match direction {
9244 Direction::Prev => entry.range.start >= search_start,
9245 Direction::Next => entry.range.start <= search_start,
9246 }) && self
9247 .active_diagnostics
9248 .as_ref()
9249 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9250 })
9251 .find_map(|entry| {
9252 if entry.diagnostic.is_primary
9253 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9254 && !entry.range.is_empty()
9255 // if we match with the active diagnostic, skip it
9256 && Some(entry.diagnostic.group_id)
9257 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9258 {
9259 Some((entry.range, entry.diagnostic.group_id))
9260 } else {
9261 None
9262 }
9263 });
9264
9265 if let Some((primary_range, group_id)) = group {
9266 self.activate_diagnostics(group_id, cx);
9267 if self.active_diagnostics.is_some() {
9268 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9269 s.select(vec![Selection {
9270 id: selection.id,
9271 start: primary_range.start,
9272 end: primary_range.start,
9273 reversed: false,
9274 goal: SelectionGoal::None,
9275 }]);
9276 });
9277 }
9278 break;
9279 } else {
9280 // Cycle around to the start of the buffer, potentially moving back to the start of
9281 // the currently active diagnostic.
9282 active_primary_range.take();
9283 if direction == Direction::Prev {
9284 if search_start == buffer.len() {
9285 break;
9286 } else {
9287 search_start = buffer.len();
9288 }
9289 } else if search_start == 0 {
9290 break;
9291 } else {
9292 search_start = 0;
9293 }
9294 }
9295 }
9296 }
9297
9298 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9299 let snapshot = self.snapshot(cx);
9300 let selection = self.selections.newest::<Point>(cx);
9301 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9302 }
9303
9304 fn go_to_hunk_after_position(
9305 &mut self,
9306 snapshot: &EditorSnapshot,
9307 position: Point,
9308 cx: &mut ViewContext<Editor>,
9309 ) -> Option<MultiBufferDiffHunk> {
9310 for (ix, position) in [position, Point::zero()].into_iter().enumerate() {
9311 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9312 snapshot,
9313 position,
9314 ix > 0,
9315 snapshot.diff_map.diff_hunks_in_range(
9316 position + Point::new(1, 0)..snapshot.buffer_snapshot.max_point(),
9317 &snapshot.buffer_snapshot,
9318 ),
9319 cx,
9320 ) {
9321 return Some(hunk);
9322 }
9323 }
9324 None
9325 }
9326
9327 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9328 let snapshot = self.snapshot(cx);
9329 let selection = self.selections.newest::<Point>(cx);
9330 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9331 }
9332
9333 fn go_to_hunk_before_position(
9334 &mut self,
9335 snapshot: &EditorSnapshot,
9336 position: Point,
9337 cx: &mut ViewContext<Editor>,
9338 ) -> Option<MultiBufferDiffHunk> {
9339 for (ix, position) in [position, snapshot.buffer_snapshot.max_point()]
9340 .into_iter()
9341 .enumerate()
9342 {
9343 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9344 snapshot,
9345 position,
9346 ix > 0,
9347 snapshot
9348 .diff_map
9349 .diff_hunks_in_range_rev(Point::zero()..position, &snapshot.buffer_snapshot),
9350 cx,
9351 ) {
9352 return Some(hunk);
9353 }
9354 }
9355 None
9356 }
9357
9358 fn go_to_next_hunk_in_direction(
9359 &mut self,
9360 snapshot: &DisplaySnapshot,
9361 initial_point: Point,
9362 is_wrapped: bool,
9363 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9364 cx: &mut ViewContext<Editor>,
9365 ) -> Option<MultiBufferDiffHunk> {
9366 let display_point = initial_point.to_display_point(snapshot);
9367 let mut hunks = hunks
9368 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9369 .filter(|(display_hunk, _)| {
9370 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9371 })
9372 .dedup();
9373
9374 if let Some((display_hunk, hunk)) = hunks.next() {
9375 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9376 let row = display_hunk.start_display_row();
9377 let point = DisplayPoint::new(row, 0);
9378 s.select_display_ranges([point..point]);
9379 });
9380
9381 Some(hunk)
9382 } else {
9383 None
9384 }
9385 }
9386
9387 pub fn go_to_definition(
9388 &mut self,
9389 _: &GoToDefinition,
9390 cx: &mut ViewContext<Self>,
9391 ) -> Task<Result<Navigated>> {
9392 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9393 cx.spawn(|editor, mut cx| async move {
9394 if definition.await? == Navigated::Yes {
9395 return Ok(Navigated::Yes);
9396 }
9397 match editor.update(&mut cx, |editor, cx| {
9398 editor.find_all_references(&FindAllReferences, cx)
9399 })? {
9400 Some(references) => references.await,
9401 None => Ok(Navigated::No),
9402 }
9403 })
9404 }
9405
9406 pub fn go_to_declaration(
9407 &mut self,
9408 _: &GoToDeclaration,
9409 cx: &mut ViewContext<Self>,
9410 ) -> Task<Result<Navigated>> {
9411 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9412 }
9413
9414 pub fn go_to_declaration_split(
9415 &mut self,
9416 _: &GoToDeclaration,
9417 cx: &mut ViewContext<Self>,
9418 ) -> Task<Result<Navigated>> {
9419 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9420 }
9421
9422 pub fn go_to_implementation(
9423 &mut self,
9424 _: &GoToImplementation,
9425 cx: &mut ViewContext<Self>,
9426 ) -> Task<Result<Navigated>> {
9427 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9428 }
9429
9430 pub fn go_to_implementation_split(
9431 &mut self,
9432 _: &GoToImplementationSplit,
9433 cx: &mut ViewContext<Self>,
9434 ) -> Task<Result<Navigated>> {
9435 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9436 }
9437
9438 pub fn go_to_type_definition(
9439 &mut self,
9440 _: &GoToTypeDefinition,
9441 cx: &mut ViewContext<Self>,
9442 ) -> Task<Result<Navigated>> {
9443 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9444 }
9445
9446 pub fn go_to_definition_split(
9447 &mut self,
9448 _: &GoToDefinitionSplit,
9449 cx: &mut ViewContext<Self>,
9450 ) -> Task<Result<Navigated>> {
9451 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9452 }
9453
9454 pub fn go_to_type_definition_split(
9455 &mut self,
9456 _: &GoToTypeDefinitionSplit,
9457 cx: &mut ViewContext<Self>,
9458 ) -> Task<Result<Navigated>> {
9459 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9460 }
9461
9462 fn go_to_definition_of_kind(
9463 &mut self,
9464 kind: GotoDefinitionKind,
9465 split: bool,
9466 cx: &mut ViewContext<Self>,
9467 ) -> Task<Result<Navigated>> {
9468 let Some(provider) = self.semantics_provider.clone() else {
9469 return Task::ready(Ok(Navigated::No));
9470 };
9471 let head = self.selections.newest::<usize>(cx).head();
9472 let buffer = self.buffer.read(cx);
9473 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9474 text_anchor
9475 } else {
9476 return Task::ready(Ok(Navigated::No));
9477 };
9478
9479 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9480 return Task::ready(Ok(Navigated::No));
9481 };
9482
9483 cx.spawn(|editor, mut cx| async move {
9484 let definitions = definitions.await?;
9485 let navigated = editor
9486 .update(&mut cx, |editor, cx| {
9487 editor.navigate_to_hover_links(
9488 Some(kind),
9489 definitions
9490 .into_iter()
9491 .filter(|location| {
9492 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9493 })
9494 .map(HoverLink::Text)
9495 .collect::<Vec<_>>(),
9496 split,
9497 cx,
9498 )
9499 })?
9500 .await?;
9501 anyhow::Ok(navigated)
9502 })
9503 }
9504
9505 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9506 let selection = self.selections.newest_anchor();
9507 let head = selection.head();
9508 let tail = selection.tail();
9509
9510 let Some((buffer, start_position)) =
9511 self.buffer.read(cx).text_anchor_for_position(head, cx)
9512 else {
9513 return;
9514 };
9515
9516 let end_position = if head != tail {
9517 let Some((_, pos)) = self.buffer.read(cx).text_anchor_for_position(tail, cx) else {
9518 return;
9519 };
9520 Some(pos)
9521 } else {
9522 None
9523 };
9524
9525 let url_finder = cx.spawn(|editor, mut cx| async move {
9526 let url = if let Some(end_pos) = end_position {
9527 find_url_from_range(&buffer, start_position..end_pos, cx.clone())
9528 } else {
9529 find_url(&buffer, start_position, cx.clone()).map(|(_, url)| url)
9530 };
9531
9532 if let Some(url) = url {
9533 editor.update(&mut cx, |_, cx| {
9534 cx.open_url(&url);
9535 })
9536 } else {
9537 Ok(())
9538 }
9539 });
9540
9541 url_finder.detach();
9542 }
9543
9544 pub fn open_selected_filename(&mut self, _: &OpenSelectedFilename, cx: &mut ViewContext<Self>) {
9545 let Some(workspace) = self.workspace() else {
9546 return;
9547 };
9548
9549 let position = self.selections.newest_anchor().head();
9550
9551 let Some((buffer, buffer_position)) =
9552 self.buffer.read(cx).text_anchor_for_position(position, cx)
9553 else {
9554 return;
9555 };
9556
9557 let project = self.project.clone();
9558
9559 cx.spawn(|_, mut cx| async move {
9560 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9561
9562 if let Some((_, path)) = result {
9563 workspace
9564 .update(&mut cx, |workspace, cx| {
9565 workspace.open_resolved_path(path, cx)
9566 })?
9567 .await?;
9568 }
9569 anyhow::Ok(())
9570 })
9571 .detach();
9572 }
9573
9574 pub(crate) fn navigate_to_hover_links(
9575 &mut self,
9576 kind: Option<GotoDefinitionKind>,
9577 mut definitions: Vec<HoverLink>,
9578 split: bool,
9579 cx: &mut ViewContext<Editor>,
9580 ) -> Task<Result<Navigated>> {
9581 // If there is one definition, just open it directly
9582 if definitions.len() == 1 {
9583 let definition = definitions.pop().unwrap();
9584
9585 enum TargetTaskResult {
9586 Location(Option<Location>),
9587 AlreadyNavigated,
9588 }
9589
9590 let target_task = match definition {
9591 HoverLink::Text(link) => {
9592 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9593 }
9594 HoverLink::InlayHint(lsp_location, server_id) => {
9595 let computation = self.compute_target_location(lsp_location, server_id, cx);
9596 cx.background_executor().spawn(async move {
9597 let location = computation.await?;
9598 Ok(TargetTaskResult::Location(location))
9599 })
9600 }
9601 HoverLink::Url(url) => {
9602 cx.open_url(&url);
9603 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9604 }
9605 HoverLink::File(path) => {
9606 if let Some(workspace) = self.workspace() {
9607 cx.spawn(|_, mut cx| async move {
9608 workspace
9609 .update(&mut cx, |workspace, cx| {
9610 workspace.open_resolved_path(path, cx)
9611 })?
9612 .await
9613 .map(|_| TargetTaskResult::AlreadyNavigated)
9614 })
9615 } else {
9616 Task::ready(Ok(TargetTaskResult::Location(None)))
9617 }
9618 }
9619 };
9620 cx.spawn(|editor, mut cx| async move {
9621 let target = match target_task.await.context("target resolution task")? {
9622 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9623 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9624 TargetTaskResult::Location(Some(target)) => target,
9625 };
9626
9627 editor.update(&mut cx, |editor, cx| {
9628 let Some(workspace) = editor.workspace() else {
9629 return Navigated::No;
9630 };
9631 let pane = workspace.read(cx).active_pane().clone();
9632
9633 let range = target.range.to_offset(target.buffer.read(cx));
9634 let range = editor.range_for_match(&range);
9635
9636 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9637 let buffer = target.buffer.read(cx);
9638 let range = check_multiline_range(buffer, range);
9639 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9640 s.select_ranges([range]);
9641 });
9642 } else {
9643 cx.window_context().defer(move |cx| {
9644 let target_editor: View<Self> =
9645 workspace.update(cx, |workspace, cx| {
9646 let pane = if split {
9647 workspace.adjacent_pane(cx)
9648 } else {
9649 workspace.active_pane().clone()
9650 };
9651
9652 workspace.open_project_item(
9653 pane,
9654 target.buffer.clone(),
9655 true,
9656 true,
9657 cx,
9658 )
9659 });
9660 target_editor.update(cx, |target_editor, cx| {
9661 // When selecting a definition in a different buffer, disable the nav history
9662 // to avoid creating a history entry at the previous cursor location.
9663 pane.update(cx, |pane, _| pane.disable_history());
9664 let buffer = target.buffer.read(cx);
9665 let range = check_multiline_range(buffer, range);
9666 target_editor.change_selections(
9667 Some(Autoscroll::focused()),
9668 cx,
9669 |s| {
9670 s.select_ranges([range]);
9671 },
9672 );
9673 pane.update(cx, |pane, _| pane.enable_history());
9674 });
9675 });
9676 }
9677 Navigated::Yes
9678 })
9679 })
9680 } else if !definitions.is_empty() {
9681 cx.spawn(|editor, mut cx| async move {
9682 let (title, location_tasks, workspace) = editor
9683 .update(&mut cx, |editor, cx| {
9684 let tab_kind = match kind {
9685 Some(GotoDefinitionKind::Implementation) => "Implementations",
9686 _ => "Definitions",
9687 };
9688 let title = definitions
9689 .iter()
9690 .find_map(|definition| match definition {
9691 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9692 let buffer = origin.buffer.read(cx);
9693 format!(
9694 "{} for {}",
9695 tab_kind,
9696 buffer
9697 .text_for_range(origin.range.clone())
9698 .collect::<String>()
9699 )
9700 }),
9701 HoverLink::InlayHint(_, _) => None,
9702 HoverLink::Url(_) => None,
9703 HoverLink::File(_) => None,
9704 })
9705 .unwrap_or(tab_kind.to_string());
9706 let location_tasks = definitions
9707 .into_iter()
9708 .map(|definition| match definition {
9709 HoverLink::Text(link) => Task::ready(Ok(Some(link.target))),
9710 HoverLink::InlayHint(lsp_location, server_id) => {
9711 editor.compute_target_location(lsp_location, server_id, cx)
9712 }
9713 HoverLink::Url(_) => Task::ready(Ok(None)),
9714 HoverLink::File(_) => Task::ready(Ok(None)),
9715 })
9716 .collect::<Vec<_>>();
9717 (title, location_tasks, editor.workspace().clone())
9718 })
9719 .context("location tasks preparation")?;
9720
9721 let locations = future::join_all(location_tasks)
9722 .await
9723 .into_iter()
9724 .filter_map(|location| location.transpose())
9725 .collect::<Result<_>>()
9726 .context("location tasks")?;
9727
9728 let Some(workspace) = workspace else {
9729 return Ok(Navigated::No);
9730 };
9731 let opened = workspace
9732 .update(&mut cx, |workspace, cx| {
9733 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9734 })
9735 .ok();
9736
9737 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9738 })
9739 } else {
9740 Task::ready(Ok(Navigated::No))
9741 }
9742 }
9743
9744 fn compute_target_location(
9745 &self,
9746 lsp_location: lsp::Location,
9747 server_id: LanguageServerId,
9748 cx: &mut ViewContext<Self>,
9749 ) -> Task<anyhow::Result<Option<Location>>> {
9750 let Some(project) = self.project.clone() else {
9751 return Task::ready(Ok(None));
9752 };
9753
9754 cx.spawn(move |editor, mut cx| async move {
9755 let location_task = editor.update(&mut cx, |_, cx| {
9756 project.update(cx, |project, cx| {
9757 let language_server_name = project
9758 .language_server_statuses(cx)
9759 .find(|(id, _)| server_id == *id)
9760 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9761 language_server_name.map(|language_server_name| {
9762 project.open_local_buffer_via_lsp(
9763 lsp_location.uri.clone(),
9764 server_id,
9765 language_server_name,
9766 cx,
9767 )
9768 })
9769 })
9770 })?;
9771 let location = match location_task {
9772 Some(task) => Some({
9773 let target_buffer_handle = task.await.context("open local buffer")?;
9774 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9775 let target_start = target_buffer
9776 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9777 let target_end = target_buffer
9778 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9779 target_buffer.anchor_after(target_start)
9780 ..target_buffer.anchor_before(target_end)
9781 })?;
9782 Location {
9783 buffer: target_buffer_handle,
9784 range,
9785 }
9786 }),
9787 None => None,
9788 };
9789 Ok(location)
9790 })
9791 }
9792
9793 pub fn find_all_references(
9794 &mut self,
9795 _: &FindAllReferences,
9796 cx: &mut ViewContext<Self>,
9797 ) -> Option<Task<Result<Navigated>>> {
9798 let selection = self.selections.newest::<usize>(cx);
9799 let multi_buffer = self.buffer.read(cx);
9800 let head = selection.head();
9801
9802 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9803 let head_anchor = multi_buffer_snapshot.anchor_at(
9804 head,
9805 if head < selection.tail() {
9806 Bias::Right
9807 } else {
9808 Bias::Left
9809 },
9810 );
9811
9812 match self
9813 .find_all_references_task_sources
9814 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9815 {
9816 Ok(_) => {
9817 log::info!(
9818 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9819 );
9820 return None;
9821 }
9822 Err(i) => {
9823 self.find_all_references_task_sources.insert(i, head_anchor);
9824 }
9825 }
9826
9827 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9828 let workspace = self.workspace()?;
9829 let project = workspace.read(cx).project().clone();
9830 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9831 Some(cx.spawn(|editor, mut cx| async move {
9832 let _cleanup = defer({
9833 let mut cx = cx.clone();
9834 move || {
9835 let _ = editor.update(&mut cx, |editor, _| {
9836 if let Ok(i) =
9837 editor
9838 .find_all_references_task_sources
9839 .binary_search_by(|anchor| {
9840 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9841 })
9842 {
9843 editor.find_all_references_task_sources.remove(i);
9844 }
9845 });
9846 }
9847 });
9848
9849 let locations = references.await?;
9850 if locations.is_empty() {
9851 return anyhow::Ok(Navigated::No);
9852 }
9853
9854 workspace.update(&mut cx, |workspace, cx| {
9855 let title = locations
9856 .first()
9857 .as_ref()
9858 .map(|location| {
9859 let buffer = location.buffer.read(cx);
9860 format!(
9861 "References to `{}`",
9862 buffer
9863 .text_for_range(location.range.clone())
9864 .collect::<String>()
9865 )
9866 })
9867 .unwrap();
9868 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9869 Navigated::Yes
9870 })
9871 }))
9872 }
9873
9874 /// Opens a multibuffer with the given project locations in it
9875 pub fn open_locations_in_multibuffer(
9876 workspace: &mut Workspace,
9877 mut locations: Vec<Location>,
9878 title: String,
9879 split: bool,
9880 cx: &mut ViewContext<Workspace>,
9881 ) {
9882 // If there are multiple definitions, open them in a multibuffer
9883 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9884 let mut locations = locations.into_iter().peekable();
9885 let mut ranges_to_highlight = Vec::new();
9886 let capability = workspace.project().read(cx).capability();
9887
9888 let excerpt_buffer = cx.new_model(|cx| {
9889 let mut multibuffer = MultiBuffer::new(capability);
9890 while let Some(location) = locations.next() {
9891 let buffer = location.buffer.read(cx);
9892 let mut ranges_for_buffer = Vec::new();
9893 let range = location.range.to_offset(buffer);
9894 ranges_for_buffer.push(range.clone());
9895
9896 while let Some(next_location) = locations.peek() {
9897 if next_location.buffer == location.buffer {
9898 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9899 locations.next();
9900 } else {
9901 break;
9902 }
9903 }
9904
9905 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9906 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9907 location.buffer.clone(),
9908 ranges_for_buffer,
9909 DEFAULT_MULTIBUFFER_CONTEXT,
9910 cx,
9911 ))
9912 }
9913
9914 multibuffer.with_title(title)
9915 });
9916
9917 let editor = cx.new_view(|cx| {
9918 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9919 });
9920 editor.update(cx, |editor, cx| {
9921 if let Some(first_range) = ranges_to_highlight.first() {
9922 editor.change_selections(None, cx, |selections| {
9923 selections.clear_disjoint();
9924 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9925 });
9926 }
9927 editor.highlight_background::<Self>(
9928 &ranges_to_highlight,
9929 |theme| theme.editor_highlighted_line_background,
9930 cx,
9931 );
9932 editor.register_buffers_with_language_servers(cx);
9933 });
9934
9935 let item = Box::new(editor);
9936 let item_id = item.item_id();
9937
9938 if split {
9939 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9940 } else {
9941 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9942 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9943 pane.close_current_preview_item(cx)
9944 } else {
9945 None
9946 }
9947 });
9948 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9949 }
9950 workspace.active_pane().update(cx, |pane, cx| {
9951 pane.set_preview_item_id(Some(item_id), cx);
9952 });
9953 }
9954
9955 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9956 use language::ToOffset as _;
9957
9958 let provider = self.semantics_provider.clone()?;
9959 let selection = self.selections.newest_anchor().clone();
9960 let (cursor_buffer, cursor_buffer_position) = self
9961 .buffer
9962 .read(cx)
9963 .text_anchor_for_position(selection.head(), cx)?;
9964 let (tail_buffer, cursor_buffer_position_end) = self
9965 .buffer
9966 .read(cx)
9967 .text_anchor_for_position(selection.tail(), cx)?;
9968 if tail_buffer != cursor_buffer {
9969 return None;
9970 }
9971
9972 let snapshot = cursor_buffer.read(cx).snapshot();
9973 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9974 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9975 let prepare_rename = provider
9976 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
9977 .unwrap_or_else(|| Task::ready(Ok(None)));
9978 drop(snapshot);
9979
9980 Some(cx.spawn(|this, mut cx| async move {
9981 let rename_range = if let Some(range) = prepare_rename.await? {
9982 Some(range)
9983 } else {
9984 this.update(&mut cx, |this, cx| {
9985 let buffer = this.buffer.read(cx).snapshot(cx);
9986 let mut buffer_highlights = this
9987 .document_highlights_for_position(selection.head(), &buffer)
9988 .filter(|highlight| {
9989 highlight.start.excerpt_id == selection.head().excerpt_id
9990 && highlight.end.excerpt_id == selection.head().excerpt_id
9991 });
9992 buffer_highlights
9993 .next()
9994 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9995 })?
9996 };
9997 if let Some(rename_range) = rename_range {
9998 this.update(&mut cx, |this, cx| {
9999 let snapshot = cursor_buffer.read(cx).snapshot();
10000 let rename_buffer_range = rename_range.to_offset(&snapshot);
10001 let cursor_offset_in_rename_range =
10002 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10003 let cursor_offset_in_rename_range_end =
10004 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10005
10006 this.take_rename(false, cx);
10007 let buffer = this.buffer.read(cx).read(cx);
10008 let cursor_offset = selection.head().to_offset(&buffer);
10009 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10010 let rename_end = rename_start + rename_buffer_range.len();
10011 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10012 let mut old_highlight_id = None;
10013 let old_name: Arc<str> = buffer
10014 .chunks(rename_start..rename_end, true)
10015 .map(|chunk| {
10016 if old_highlight_id.is_none() {
10017 old_highlight_id = chunk.syntax_highlight_id;
10018 }
10019 chunk.text
10020 })
10021 .collect::<String>()
10022 .into();
10023
10024 drop(buffer);
10025
10026 // Position the selection in the rename editor so that it matches the current selection.
10027 this.show_local_selections = false;
10028 let rename_editor = cx.new_view(|cx| {
10029 let mut editor = Editor::single_line(cx);
10030 editor.buffer.update(cx, |buffer, cx| {
10031 buffer.edit([(0..0, old_name.clone())], None, cx)
10032 });
10033 let rename_selection_range = match cursor_offset_in_rename_range
10034 .cmp(&cursor_offset_in_rename_range_end)
10035 {
10036 Ordering::Equal => {
10037 editor.select_all(&SelectAll, cx);
10038 return editor;
10039 }
10040 Ordering::Less => {
10041 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10042 }
10043 Ordering::Greater => {
10044 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10045 }
10046 };
10047 if rename_selection_range.end > old_name.len() {
10048 editor.select_all(&SelectAll, cx);
10049 } else {
10050 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10051 s.select_ranges([rename_selection_range]);
10052 });
10053 }
10054 editor
10055 });
10056 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10057 if e == &EditorEvent::Focused {
10058 cx.emit(EditorEvent::FocusedIn)
10059 }
10060 })
10061 .detach();
10062
10063 let write_highlights =
10064 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10065 let read_highlights =
10066 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10067 let ranges = write_highlights
10068 .iter()
10069 .flat_map(|(_, ranges)| ranges.iter())
10070 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10071 .cloned()
10072 .collect();
10073
10074 this.highlight_text::<Rename>(
10075 ranges,
10076 HighlightStyle {
10077 fade_out: Some(0.6),
10078 ..Default::default()
10079 },
10080 cx,
10081 );
10082 let rename_focus_handle = rename_editor.focus_handle(cx);
10083 cx.focus(&rename_focus_handle);
10084 let block_id = this.insert_blocks(
10085 [BlockProperties {
10086 style: BlockStyle::Flex,
10087 placement: BlockPlacement::Below(range.start),
10088 height: 1,
10089 render: Arc::new({
10090 let rename_editor = rename_editor.clone();
10091 move |cx: &mut BlockContext| {
10092 let mut text_style = cx.editor_style.text.clone();
10093 if let Some(highlight_style) = old_highlight_id
10094 .and_then(|h| h.style(&cx.editor_style.syntax))
10095 {
10096 text_style = text_style.highlight(highlight_style);
10097 }
10098 div()
10099 .block_mouse_down()
10100 .pl(cx.anchor_x)
10101 .child(EditorElement::new(
10102 &rename_editor,
10103 EditorStyle {
10104 background: cx.theme().system().transparent,
10105 local_player: cx.editor_style.local_player,
10106 text: text_style,
10107 scrollbar_width: cx.editor_style.scrollbar_width,
10108 syntax: cx.editor_style.syntax.clone(),
10109 status: cx.editor_style.status.clone(),
10110 inlay_hints_style: HighlightStyle {
10111 font_weight: Some(FontWeight::BOLD),
10112 ..make_inlay_hints_style(cx)
10113 },
10114 inline_completion_styles: make_suggestion_styles(
10115 cx,
10116 ),
10117 ..EditorStyle::default()
10118 },
10119 ))
10120 .into_any_element()
10121 }
10122 }),
10123 priority: 0,
10124 }],
10125 Some(Autoscroll::fit()),
10126 cx,
10127 )[0];
10128 this.pending_rename = Some(RenameState {
10129 range,
10130 old_name,
10131 editor: rename_editor,
10132 block_id,
10133 });
10134 })?;
10135 }
10136
10137 Ok(())
10138 }))
10139 }
10140
10141 pub fn confirm_rename(
10142 &mut self,
10143 _: &ConfirmRename,
10144 cx: &mut ViewContext<Self>,
10145 ) -> Option<Task<Result<()>>> {
10146 let rename = self.take_rename(false, cx)?;
10147 let workspace = self.workspace()?.downgrade();
10148 let (buffer, start) = self
10149 .buffer
10150 .read(cx)
10151 .text_anchor_for_position(rename.range.start, cx)?;
10152 let (end_buffer, _) = self
10153 .buffer
10154 .read(cx)
10155 .text_anchor_for_position(rename.range.end, cx)?;
10156 if buffer != end_buffer {
10157 return None;
10158 }
10159
10160 let old_name = rename.old_name;
10161 let new_name = rename.editor.read(cx).text(cx);
10162
10163 let rename = self.semantics_provider.as_ref()?.perform_rename(
10164 &buffer,
10165 start,
10166 new_name.clone(),
10167 cx,
10168 )?;
10169
10170 Some(cx.spawn(|editor, mut cx| async move {
10171 let project_transaction = rename.await?;
10172 Self::open_project_transaction(
10173 &editor,
10174 workspace,
10175 project_transaction,
10176 format!("Rename: {} → {}", old_name, new_name),
10177 cx.clone(),
10178 )
10179 .await?;
10180
10181 editor.update(&mut cx, |editor, cx| {
10182 editor.refresh_document_highlights(cx);
10183 })?;
10184 Ok(())
10185 }))
10186 }
10187
10188 fn take_rename(
10189 &mut self,
10190 moving_cursor: bool,
10191 cx: &mut ViewContext<Self>,
10192 ) -> Option<RenameState> {
10193 let rename = self.pending_rename.take()?;
10194 if rename.editor.focus_handle(cx).is_focused(cx) {
10195 cx.focus(&self.focus_handle);
10196 }
10197
10198 self.remove_blocks(
10199 [rename.block_id].into_iter().collect(),
10200 Some(Autoscroll::fit()),
10201 cx,
10202 );
10203 self.clear_highlights::<Rename>(cx);
10204 self.show_local_selections = true;
10205
10206 if moving_cursor {
10207 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10208 editor.selections.newest::<usize>(cx).head()
10209 });
10210
10211 // Update the selection to match the position of the selection inside
10212 // the rename editor.
10213 let snapshot = self.buffer.read(cx).read(cx);
10214 let rename_range = rename.range.to_offset(&snapshot);
10215 let cursor_in_editor = snapshot
10216 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10217 .min(rename_range.end);
10218 drop(snapshot);
10219
10220 self.change_selections(None, cx, |s| {
10221 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10222 });
10223 } else {
10224 self.refresh_document_highlights(cx);
10225 }
10226
10227 Some(rename)
10228 }
10229
10230 pub fn pending_rename(&self) -> Option<&RenameState> {
10231 self.pending_rename.as_ref()
10232 }
10233
10234 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10235 let project = match &self.project {
10236 Some(project) => project.clone(),
10237 None => return None,
10238 };
10239
10240 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10241 }
10242
10243 fn format_selections(
10244 &mut self,
10245 _: &FormatSelections,
10246 cx: &mut ViewContext<Self>,
10247 ) -> Option<Task<Result<()>>> {
10248 let project = match &self.project {
10249 Some(project) => project.clone(),
10250 None => return None,
10251 };
10252
10253 let selections = self
10254 .selections
10255 .all_adjusted(cx)
10256 .into_iter()
10257 .filter(|s| !s.is_empty())
10258 .collect_vec();
10259
10260 Some(self.perform_format(
10261 project,
10262 FormatTrigger::Manual,
10263 FormatTarget::Ranges(selections),
10264 cx,
10265 ))
10266 }
10267
10268 fn perform_format(
10269 &mut self,
10270 project: Model<Project>,
10271 trigger: FormatTrigger,
10272 target: FormatTarget,
10273 cx: &mut ViewContext<Self>,
10274 ) -> Task<Result<()>> {
10275 let buffer = self.buffer().clone();
10276 let mut buffers = buffer.read(cx).all_buffers();
10277 if trigger == FormatTrigger::Save {
10278 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10279 }
10280
10281 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10282 let format = project.update(cx, |project, cx| {
10283 project.format(buffers, true, trigger, target, cx)
10284 });
10285
10286 cx.spawn(|_, mut cx| async move {
10287 let transaction = futures::select_biased! {
10288 () = timeout => {
10289 log::warn!("timed out waiting for formatting");
10290 None
10291 }
10292 transaction = format.log_err().fuse() => transaction,
10293 };
10294
10295 buffer
10296 .update(&mut cx, |buffer, cx| {
10297 if let Some(transaction) = transaction {
10298 if !buffer.is_singleton() {
10299 buffer.push_transaction(&transaction.0, cx);
10300 }
10301 }
10302
10303 cx.notify();
10304 })
10305 .ok();
10306
10307 Ok(())
10308 })
10309 }
10310
10311 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10312 if let Some(project) = self.project.clone() {
10313 self.buffer.update(cx, |multi_buffer, cx| {
10314 project.update(cx, |project, cx| {
10315 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10316 });
10317 })
10318 }
10319 }
10320
10321 fn cancel_language_server_work(
10322 &mut self,
10323 _: &actions::CancelLanguageServerWork,
10324 cx: &mut ViewContext<Self>,
10325 ) {
10326 if let Some(project) = self.project.clone() {
10327 self.buffer.update(cx, |multi_buffer, cx| {
10328 project.update(cx, |project, cx| {
10329 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10330 });
10331 })
10332 }
10333 }
10334
10335 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10336 cx.show_character_palette();
10337 }
10338
10339 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10340 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10341 let buffer = self.buffer.read(cx).snapshot(cx);
10342 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10343 let is_valid = buffer
10344 .diagnostics_in_range(active_diagnostics.primary_range.clone(), false)
10345 .any(|entry| {
10346 let range = entry.range.to_offset(&buffer);
10347 entry.diagnostic.is_primary
10348 && !range.is_empty()
10349 && range.start == primary_range_start
10350 && entry.diagnostic.message == active_diagnostics.primary_message
10351 });
10352
10353 if is_valid != active_diagnostics.is_valid {
10354 active_diagnostics.is_valid = is_valid;
10355 let mut new_styles = HashMap::default();
10356 for (block_id, diagnostic) in &active_diagnostics.blocks {
10357 new_styles.insert(
10358 *block_id,
10359 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10360 );
10361 }
10362 self.display_map.update(cx, |display_map, _cx| {
10363 display_map.replace_blocks(new_styles)
10364 });
10365 }
10366 }
10367 }
10368
10369 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) {
10370 self.dismiss_diagnostics(cx);
10371 let snapshot = self.snapshot(cx);
10372 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10373 let buffer = self.buffer.read(cx).snapshot(cx);
10374
10375 let mut primary_range = None;
10376 let mut primary_message = None;
10377 let mut group_end = Point::zero();
10378 let diagnostic_group = buffer
10379 .diagnostic_group(group_id)
10380 .filter_map(|entry| {
10381 let start = entry.range.start.to_point(&buffer);
10382 let end = entry.range.end.to_point(&buffer);
10383 if snapshot.is_line_folded(MultiBufferRow(start.row))
10384 && (start.row == end.row
10385 || snapshot.is_line_folded(MultiBufferRow(end.row)))
10386 {
10387 return None;
10388 }
10389 if end > group_end {
10390 group_end = end;
10391 }
10392 if entry.diagnostic.is_primary {
10393 primary_range = Some(entry.range.clone());
10394 primary_message = Some(entry.diagnostic.message.clone());
10395 }
10396 Some(entry)
10397 })
10398 .collect::<Vec<_>>();
10399 let primary_range = primary_range?;
10400 let primary_message = primary_message?;
10401
10402 let blocks = display_map
10403 .insert_blocks(
10404 diagnostic_group.iter().map(|entry| {
10405 let diagnostic = entry.diagnostic.clone();
10406 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10407 BlockProperties {
10408 style: BlockStyle::Fixed,
10409 placement: BlockPlacement::Below(
10410 buffer.anchor_after(entry.range.start),
10411 ),
10412 height: message_height,
10413 render: diagnostic_block_renderer(diagnostic, None, true, true),
10414 priority: 0,
10415 }
10416 }),
10417 cx,
10418 )
10419 .into_iter()
10420 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10421 .collect();
10422
10423 Some(ActiveDiagnosticGroup {
10424 primary_range,
10425 primary_message,
10426 group_id,
10427 blocks,
10428 is_valid: true,
10429 })
10430 });
10431 }
10432
10433 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10434 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10435 self.display_map.update(cx, |display_map, cx| {
10436 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10437 });
10438 cx.notify();
10439 }
10440 }
10441
10442 pub fn set_selections_from_remote(
10443 &mut self,
10444 selections: Vec<Selection<Anchor>>,
10445 pending_selection: Option<Selection<Anchor>>,
10446 cx: &mut ViewContext<Self>,
10447 ) {
10448 let old_cursor_position = self.selections.newest_anchor().head();
10449 self.selections.change_with(cx, |s| {
10450 s.select_anchors(selections);
10451 if let Some(pending_selection) = pending_selection {
10452 s.set_pending(pending_selection, SelectMode::Character);
10453 } else {
10454 s.clear_pending();
10455 }
10456 });
10457 self.selections_did_change(false, &old_cursor_position, true, cx);
10458 }
10459
10460 fn push_to_selection_history(&mut self) {
10461 self.selection_history.push(SelectionHistoryEntry {
10462 selections: self.selections.disjoint_anchors(),
10463 select_next_state: self.select_next_state.clone(),
10464 select_prev_state: self.select_prev_state.clone(),
10465 add_selections_state: self.add_selections_state.clone(),
10466 });
10467 }
10468
10469 pub fn transact(
10470 &mut self,
10471 cx: &mut ViewContext<Self>,
10472 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10473 ) -> Option<TransactionId> {
10474 self.start_transaction_at(Instant::now(), cx);
10475 update(self, cx);
10476 self.end_transaction_at(Instant::now(), cx)
10477 }
10478
10479 pub fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10480 self.end_selection(cx);
10481 if let Some(tx_id) = self
10482 .buffer
10483 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10484 {
10485 self.selection_history
10486 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10487 cx.emit(EditorEvent::TransactionBegun {
10488 transaction_id: tx_id,
10489 })
10490 }
10491 }
10492
10493 pub fn end_transaction_at(
10494 &mut self,
10495 now: Instant,
10496 cx: &mut ViewContext<Self>,
10497 ) -> Option<TransactionId> {
10498 if let Some(transaction_id) = self
10499 .buffer
10500 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10501 {
10502 if let Some((_, end_selections)) =
10503 self.selection_history.transaction_mut(transaction_id)
10504 {
10505 *end_selections = Some(self.selections.disjoint_anchors());
10506 } else {
10507 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10508 }
10509
10510 cx.emit(EditorEvent::Edited { transaction_id });
10511 Some(transaction_id)
10512 } else {
10513 None
10514 }
10515 }
10516
10517 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10518 if self.is_singleton(cx) {
10519 let selection = self.selections.newest::<Point>(cx);
10520
10521 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10522 let range = if selection.is_empty() {
10523 let point = selection.head().to_display_point(&display_map);
10524 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10525 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10526 .to_point(&display_map);
10527 start..end
10528 } else {
10529 selection.range()
10530 };
10531 if display_map.folds_in_range(range).next().is_some() {
10532 self.unfold_lines(&Default::default(), cx)
10533 } else {
10534 self.fold(&Default::default(), cx)
10535 }
10536 } else {
10537 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10538 let mut toggled_buffers = HashSet::default();
10539 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10540 self.selections
10541 .disjoint_anchors()
10542 .into_iter()
10543 .map(|selection| selection.range()),
10544 ) {
10545 let buffer_id = buffer_snapshot.remote_id();
10546 if toggled_buffers.insert(buffer_id) {
10547 if self.buffer_folded(buffer_id, cx) {
10548 self.unfold_buffer(buffer_id, cx);
10549 } else {
10550 self.fold_buffer(buffer_id, cx);
10551 }
10552 }
10553 }
10554 }
10555 }
10556
10557 pub fn toggle_fold_recursive(
10558 &mut self,
10559 _: &actions::ToggleFoldRecursive,
10560 cx: &mut ViewContext<Self>,
10561 ) {
10562 let selection = self.selections.newest::<Point>(cx);
10563
10564 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10565 let range = if selection.is_empty() {
10566 let point = selection.head().to_display_point(&display_map);
10567 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10568 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10569 .to_point(&display_map);
10570 start..end
10571 } else {
10572 selection.range()
10573 };
10574 if display_map.folds_in_range(range).next().is_some() {
10575 self.unfold_recursive(&Default::default(), cx)
10576 } else {
10577 self.fold_recursive(&Default::default(), cx)
10578 }
10579 }
10580
10581 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10582 if self.is_singleton(cx) {
10583 let mut to_fold = Vec::new();
10584 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10585 let selections = self.selections.all_adjusted(cx);
10586
10587 for selection in selections {
10588 let range = selection.range().sorted();
10589 let buffer_start_row = range.start.row;
10590
10591 if range.start.row != range.end.row {
10592 let mut found = false;
10593 let mut row = range.start.row;
10594 while row <= range.end.row {
10595 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row))
10596 {
10597 found = true;
10598 row = crease.range().end.row + 1;
10599 to_fold.push(crease);
10600 } else {
10601 row += 1
10602 }
10603 }
10604 if found {
10605 continue;
10606 }
10607 }
10608
10609 for row in (0..=range.start.row).rev() {
10610 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10611 if crease.range().end.row >= buffer_start_row {
10612 to_fold.push(crease);
10613 if row <= range.start.row {
10614 break;
10615 }
10616 }
10617 }
10618 }
10619 }
10620
10621 self.fold_creases(to_fold, true, cx);
10622 } else {
10623 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10624 let mut folded_buffers = HashSet::default();
10625 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10626 self.selections
10627 .disjoint_anchors()
10628 .into_iter()
10629 .map(|selection| selection.range()),
10630 ) {
10631 let buffer_id = buffer_snapshot.remote_id();
10632 if folded_buffers.insert(buffer_id) {
10633 self.fold_buffer(buffer_id, cx);
10634 }
10635 }
10636 }
10637 }
10638
10639 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10640 if !self.buffer.read(cx).is_singleton() {
10641 return;
10642 }
10643
10644 let fold_at_level = fold_at.level;
10645 let snapshot = self.buffer.read(cx).snapshot(cx);
10646 let mut to_fold = Vec::new();
10647 let mut stack = vec![(0, snapshot.max_row().0, 1)];
10648
10649 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10650 while start_row < end_row {
10651 match self
10652 .snapshot(cx)
10653 .crease_for_buffer_row(MultiBufferRow(start_row))
10654 {
10655 Some(crease) => {
10656 let nested_start_row = crease.range().start.row + 1;
10657 let nested_end_row = crease.range().end.row;
10658
10659 if current_level < fold_at_level {
10660 stack.push((nested_start_row, nested_end_row, current_level + 1));
10661 } else if current_level == fold_at_level {
10662 to_fold.push(crease);
10663 }
10664
10665 start_row = nested_end_row + 1;
10666 }
10667 None => start_row += 1,
10668 }
10669 }
10670 }
10671
10672 self.fold_creases(to_fold, true, cx);
10673 }
10674
10675 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10676 if self.buffer.read(cx).is_singleton() {
10677 let mut fold_ranges = Vec::new();
10678 let snapshot = self.buffer.read(cx).snapshot(cx);
10679
10680 for row in 0..snapshot.max_row().0 {
10681 if let Some(foldable_range) =
10682 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
10683 {
10684 fold_ranges.push(foldable_range);
10685 }
10686 }
10687
10688 self.fold_creases(fold_ranges, true, cx);
10689 } else {
10690 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10691 editor
10692 .update(&mut cx, |editor, cx| {
10693 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10694 editor.fold_buffer(buffer_id, cx);
10695 }
10696 })
10697 .ok();
10698 });
10699 }
10700 }
10701
10702 pub fn fold_function_bodies(
10703 &mut self,
10704 _: &actions::FoldFunctionBodies,
10705 cx: &mut ViewContext<Self>,
10706 ) {
10707 let snapshot = self.buffer.read(cx).snapshot(cx);
10708 let Some((_, _, buffer)) = snapshot.as_singleton() else {
10709 return;
10710 };
10711 let creases = buffer
10712 .function_body_fold_ranges(0..buffer.len())
10713 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
10714 .collect();
10715
10716 self.fold_creases(creases, true, cx);
10717 }
10718
10719 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10720 let mut to_fold = Vec::new();
10721 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10722 let selections = self.selections.all_adjusted(cx);
10723
10724 for selection in selections {
10725 let range = selection.range().sorted();
10726 let buffer_start_row = range.start.row;
10727
10728 if range.start.row != range.end.row {
10729 let mut found = false;
10730 for row in range.start.row..=range.end.row {
10731 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10732 found = true;
10733 to_fold.push(crease);
10734 }
10735 }
10736 if found {
10737 continue;
10738 }
10739 }
10740
10741 for row in (0..=range.start.row).rev() {
10742 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10743 if crease.range().end.row >= buffer_start_row {
10744 to_fold.push(crease);
10745 } else {
10746 break;
10747 }
10748 }
10749 }
10750 }
10751
10752 self.fold_creases(to_fold, true, cx);
10753 }
10754
10755 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10756 let buffer_row = fold_at.buffer_row;
10757 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10758
10759 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
10760 let autoscroll = self
10761 .selections
10762 .all::<Point>(cx)
10763 .iter()
10764 .any(|selection| crease.range().overlaps(&selection.range()));
10765
10766 self.fold_creases(vec![crease], autoscroll, cx);
10767 }
10768 }
10769
10770 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10771 if self.is_singleton(cx) {
10772 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10773 let buffer = &display_map.buffer_snapshot;
10774 let selections = self.selections.all::<Point>(cx);
10775 let ranges = selections
10776 .iter()
10777 .map(|s| {
10778 let range = s.display_range(&display_map).sorted();
10779 let mut start = range.start.to_point(&display_map);
10780 let mut end = range.end.to_point(&display_map);
10781 start.column = 0;
10782 end.column = buffer.line_len(MultiBufferRow(end.row));
10783 start..end
10784 })
10785 .collect::<Vec<_>>();
10786
10787 self.unfold_ranges(&ranges, true, true, cx);
10788 } else {
10789 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10790 let mut unfolded_buffers = HashSet::default();
10791 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10792 self.selections
10793 .disjoint_anchors()
10794 .into_iter()
10795 .map(|selection| selection.range()),
10796 ) {
10797 let buffer_id = buffer_snapshot.remote_id();
10798 if unfolded_buffers.insert(buffer_id) {
10799 self.unfold_buffer(buffer_id, cx);
10800 }
10801 }
10802 }
10803 }
10804
10805 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10806 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10807 let selections = self.selections.all::<Point>(cx);
10808 let ranges = selections
10809 .iter()
10810 .map(|s| {
10811 let mut range = s.display_range(&display_map).sorted();
10812 *range.start.column_mut() = 0;
10813 *range.end.column_mut() = display_map.line_len(range.end.row());
10814 let start = range.start.to_point(&display_map);
10815 let end = range.end.to_point(&display_map);
10816 start..end
10817 })
10818 .collect::<Vec<_>>();
10819
10820 self.unfold_ranges(&ranges, true, true, cx);
10821 }
10822
10823 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10824 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10825
10826 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10827 ..Point::new(
10828 unfold_at.buffer_row.0,
10829 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10830 );
10831
10832 let autoscroll = self
10833 .selections
10834 .all::<Point>(cx)
10835 .iter()
10836 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10837
10838 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
10839 }
10840
10841 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10842 if self.buffer.read(cx).is_singleton() {
10843 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10844 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
10845 } else {
10846 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10847 editor
10848 .update(&mut cx, |editor, cx| {
10849 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10850 editor.unfold_buffer(buffer_id, cx);
10851 }
10852 })
10853 .ok();
10854 });
10855 }
10856 }
10857
10858 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10859 let selections = self.selections.all::<Point>(cx);
10860 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10861 let line_mode = self.selections.line_mode;
10862 let ranges = selections
10863 .into_iter()
10864 .map(|s| {
10865 if line_mode {
10866 let start = Point::new(s.start.row, 0);
10867 let end = Point::new(
10868 s.end.row,
10869 display_map
10870 .buffer_snapshot
10871 .line_len(MultiBufferRow(s.end.row)),
10872 );
10873 Crease::simple(start..end, display_map.fold_placeholder.clone())
10874 } else {
10875 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
10876 }
10877 })
10878 .collect::<Vec<_>>();
10879 self.fold_creases(ranges, true, cx);
10880 }
10881
10882 pub fn fold_creases<T: ToOffset + Clone>(
10883 &mut self,
10884 creases: Vec<Crease<T>>,
10885 auto_scroll: bool,
10886 cx: &mut ViewContext<Self>,
10887 ) {
10888 if creases.is_empty() {
10889 return;
10890 }
10891
10892 let mut buffers_affected = HashSet::default();
10893 let multi_buffer = self.buffer().read(cx);
10894 for crease in &creases {
10895 if let Some((_, buffer, _)) =
10896 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
10897 {
10898 buffers_affected.insert(buffer.read(cx).remote_id());
10899 };
10900 }
10901
10902 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
10903
10904 if auto_scroll {
10905 self.request_autoscroll(Autoscroll::fit(), cx);
10906 }
10907
10908 for buffer_id in buffers_affected {
10909 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10910 }
10911
10912 cx.notify();
10913
10914 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10915 // Clear diagnostics block when folding a range that contains it.
10916 let snapshot = self.snapshot(cx);
10917 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10918 drop(snapshot);
10919 self.active_diagnostics = Some(active_diagnostics);
10920 self.dismiss_diagnostics(cx);
10921 } else {
10922 self.active_diagnostics = Some(active_diagnostics);
10923 }
10924 }
10925
10926 self.scrollbar_marker_state.dirty = true;
10927 }
10928
10929 /// Removes any folds whose ranges intersect any of the given ranges.
10930 pub fn unfold_ranges<T: ToOffset + Clone>(
10931 &mut self,
10932 ranges: &[Range<T>],
10933 inclusive: bool,
10934 auto_scroll: bool,
10935 cx: &mut ViewContext<Self>,
10936 ) {
10937 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10938 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
10939 });
10940 }
10941
10942 pub fn fold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10943 if self.buffer().read(cx).is_singleton() || self.buffer_folded(buffer_id, cx) {
10944 return;
10945 }
10946 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10947 return;
10948 };
10949 let folded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10950 self.display_map
10951 .update(cx, |display_map, cx| display_map.fold_buffer(buffer_id, cx));
10952 cx.emit(EditorEvent::BufferFoldToggled {
10953 ids: folded_excerpts.iter().map(|&(id, _)| id).collect(),
10954 folded: true,
10955 });
10956 cx.notify();
10957 }
10958
10959 pub fn unfold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10960 if self.buffer().read(cx).is_singleton() || !self.buffer_folded(buffer_id, cx) {
10961 return;
10962 }
10963 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10964 return;
10965 };
10966 let unfolded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10967 self.display_map.update(cx, |display_map, cx| {
10968 display_map.unfold_buffer(buffer_id, cx);
10969 });
10970 cx.emit(EditorEvent::BufferFoldToggled {
10971 ids: unfolded_excerpts.iter().map(|&(id, _)| id).collect(),
10972 folded: false,
10973 });
10974 cx.notify();
10975 }
10976
10977 pub fn buffer_folded(&self, buffer: BufferId, cx: &AppContext) -> bool {
10978 self.display_map.read(cx).buffer_folded(buffer)
10979 }
10980
10981 /// Removes any folds with the given ranges.
10982 pub fn remove_folds_with_type<T: ToOffset + Clone>(
10983 &mut self,
10984 ranges: &[Range<T>],
10985 type_id: TypeId,
10986 auto_scroll: bool,
10987 cx: &mut ViewContext<Self>,
10988 ) {
10989 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10990 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
10991 });
10992 }
10993
10994 fn remove_folds_with<T: ToOffset + Clone>(
10995 &mut self,
10996 ranges: &[Range<T>],
10997 auto_scroll: bool,
10998 cx: &mut ViewContext<Self>,
10999 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
11000 ) {
11001 if ranges.is_empty() {
11002 return;
11003 }
11004
11005 let mut buffers_affected = HashSet::default();
11006 let multi_buffer = self.buffer().read(cx);
11007 for range in ranges {
11008 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11009 buffers_affected.insert(buffer.read(cx).remote_id());
11010 };
11011 }
11012
11013 self.display_map.update(cx, update);
11014
11015 if auto_scroll {
11016 self.request_autoscroll(Autoscroll::fit(), cx);
11017 }
11018
11019 for buffer_id in buffers_affected {
11020 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
11021 }
11022
11023 cx.notify();
11024 self.scrollbar_marker_state.dirty = true;
11025 self.active_indent_guides_state.dirty = true;
11026 }
11027
11028 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11029 self.display_map.read(cx).fold_placeholder.clone()
11030 }
11031
11032 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11033 if hovered != self.gutter_hovered {
11034 self.gutter_hovered = hovered;
11035 cx.notify();
11036 }
11037 }
11038
11039 pub fn insert_blocks(
11040 &mut self,
11041 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11042 autoscroll: Option<Autoscroll>,
11043 cx: &mut ViewContext<Self>,
11044 ) -> Vec<CustomBlockId> {
11045 let blocks = self
11046 .display_map
11047 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11048 if let Some(autoscroll) = autoscroll {
11049 self.request_autoscroll(autoscroll, cx);
11050 }
11051 cx.notify();
11052 blocks
11053 }
11054
11055 pub fn resize_blocks(
11056 &mut self,
11057 heights: HashMap<CustomBlockId, u32>,
11058 autoscroll: Option<Autoscroll>,
11059 cx: &mut ViewContext<Self>,
11060 ) {
11061 self.display_map
11062 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11063 if let Some(autoscroll) = autoscroll {
11064 self.request_autoscroll(autoscroll, cx);
11065 }
11066 cx.notify();
11067 }
11068
11069 pub fn replace_blocks(
11070 &mut self,
11071 renderers: HashMap<CustomBlockId, RenderBlock>,
11072 autoscroll: Option<Autoscroll>,
11073 cx: &mut ViewContext<Self>,
11074 ) {
11075 self.display_map
11076 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11077 if let Some(autoscroll) = autoscroll {
11078 self.request_autoscroll(autoscroll, cx);
11079 }
11080 cx.notify();
11081 }
11082
11083 pub fn remove_blocks(
11084 &mut self,
11085 block_ids: HashSet<CustomBlockId>,
11086 autoscroll: Option<Autoscroll>,
11087 cx: &mut ViewContext<Self>,
11088 ) {
11089 self.display_map.update(cx, |display_map, cx| {
11090 display_map.remove_blocks(block_ids, cx)
11091 });
11092 if let Some(autoscroll) = autoscroll {
11093 self.request_autoscroll(autoscroll, cx);
11094 }
11095 cx.notify();
11096 }
11097
11098 pub fn row_for_block(
11099 &self,
11100 block_id: CustomBlockId,
11101 cx: &mut ViewContext<Self>,
11102 ) -> Option<DisplayRow> {
11103 self.display_map
11104 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11105 }
11106
11107 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11108 self.focused_block = Some(focused_block);
11109 }
11110
11111 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11112 self.focused_block.take()
11113 }
11114
11115 pub fn insert_creases(
11116 &mut self,
11117 creases: impl IntoIterator<Item = Crease<Anchor>>,
11118 cx: &mut ViewContext<Self>,
11119 ) -> Vec<CreaseId> {
11120 self.display_map
11121 .update(cx, |map, cx| map.insert_creases(creases, cx))
11122 }
11123
11124 pub fn remove_creases(
11125 &mut self,
11126 ids: impl IntoIterator<Item = CreaseId>,
11127 cx: &mut ViewContext<Self>,
11128 ) {
11129 self.display_map
11130 .update(cx, |map, cx| map.remove_creases(ids, cx));
11131 }
11132
11133 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11134 self.display_map
11135 .update(cx, |map, cx| map.snapshot(cx))
11136 .longest_row()
11137 }
11138
11139 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11140 self.display_map
11141 .update(cx, |map, cx| map.snapshot(cx))
11142 .max_point()
11143 }
11144
11145 pub fn text(&self, cx: &AppContext) -> String {
11146 self.buffer.read(cx).read(cx).text()
11147 }
11148
11149 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11150 let text = self.text(cx);
11151 let text = text.trim();
11152
11153 if text.is_empty() {
11154 return None;
11155 }
11156
11157 Some(text.to_string())
11158 }
11159
11160 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11161 self.transact(cx, |this, cx| {
11162 this.buffer
11163 .read(cx)
11164 .as_singleton()
11165 .expect("you can only call set_text on editors for singleton buffers")
11166 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11167 });
11168 }
11169
11170 pub fn display_text(&self, cx: &mut AppContext) -> String {
11171 self.display_map
11172 .update(cx, |map, cx| map.snapshot(cx))
11173 .text()
11174 }
11175
11176 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11177 let mut wrap_guides = smallvec::smallvec![];
11178
11179 if self.show_wrap_guides == Some(false) {
11180 return wrap_guides;
11181 }
11182
11183 let settings = self.buffer.read(cx).settings_at(0, cx);
11184 if settings.show_wrap_guides {
11185 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11186 wrap_guides.push((soft_wrap as usize, true));
11187 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11188 wrap_guides.push((soft_wrap as usize, true));
11189 }
11190 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11191 }
11192
11193 wrap_guides
11194 }
11195
11196 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11197 let settings = self.buffer.read(cx).settings_at(0, cx);
11198 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11199 match mode {
11200 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11201 SoftWrap::None
11202 }
11203 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11204 language_settings::SoftWrap::PreferredLineLength => {
11205 SoftWrap::Column(settings.preferred_line_length)
11206 }
11207 language_settings::SoftWrap::Bounded => {
11208 SoftWrap::Bounded(settings.preferred_line_length)
11209 }
11210 }
11211 }
11212
11213 pub fn set_soft_wrap_mode(
11214 &mut self,
11215 mode: language_settings::SoftWrap,
11216 cx: &mut ViewContext<Self>,
11217 ) {
11218 self.soft_wrap_mode_override = Some(mode);
11219 cx.notify();
11220 }
11221
11222 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11223 self.text_style_refinement = Some(style);
11224 }
11225
11226 /// called by the Element so we know what style we were most recently rendered with.
11227 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11228 let rem_size = cx.rem_size();
11229 self.display_map.update(cx, |map, cx| {
11230 map.set_font(
11231 style.text.font(),
11232 style.text.font_size.to_pixels(rem_size),
11233 cx,
11234 )
11235 });
11236 self.style = Some(style);
11237 }
11238
11239 pub fn style(&self) -> Option<&EditorStyle> {
11240 self.style.as_ref()
11241 }
11242
11243 // Called by the element. This method is not designed to be called outside of the editor
11244 // element's layout code because it does not notify when rewrapping is computed synchronously.
11245 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11246 self.display_map
11247 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11248 }
11249
11250 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11251 if self.soft_wrap_mode_override.is_some() {
11252 self.soft_wrap_mode_override.take();
11253 } else {
11254 let soft_wrap = match self.soft_wrap_mode(cx) {
11255 SoftWrap::GitDiff => return,
11256 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11257 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11258 language_settings::SoftWrap::None
11259 }
11260 };
11261 self.soft_wrap_mode_override = Some(soft_wrap);
11262 }
11263 cx.notify();
11264 }
11265
11266 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11267 let Some(workspace) = self.workspace() else {
11268 return;
11269 };
11270 let fs = workspace.read(cx).app_state().fs.clone();
11271 let current_show = TabBarSettings::get_global(cx).show;
11272 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11273 setting.show = Some(!current_show);
11274 });
11275 }
11276
11277 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11278 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11279 self.buffer
11280 .read(cx)
11281 .settings_at(0, cx)
11282 .indent_guides
11283 .enabled
11284 });
11285 self.show_indent_guides = Some(!currently_enabled);
11286 cx.notify();
11287 }
11288
11289 fn should_show_indent_guides(&self) -> Option<bool> {
11290 self.show_indent_guides
11291 }
11292
11293 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11294 let mut editor_settings = EditorSettings::get_global(cx).clone();
11295 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11296 EditorSettings::override_global(editor_settings, cx);
11297 }
11298
11299 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11300 self.use_relative_line_numbers
11301 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11302 }
11303
11304 pub fn toggle_relative_line_numbers(
11305 &mut self,
11306 _: &ToggleRelativeLineNumbers,
11307 cx: &mut ViewContext<Self>,
11308 ) {
11309 let is_relative = self.should_use_relative_line_numbers(cx);
11310 self.set_relative_line_number(Some(!is_relative), cx)
11311 }
11312
11313 pub fn set_relative_line_number(
11314 &mut self,
11315 is_relative: Option<bool>,
11316 cx: &mut ViewContext<Self>,
11317 ) {
11318 self.use_relative_line_numbers = is_relative;
11319 cx.notify();
11320 }
11321
11322 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11323 self.show_gutter = show_gutter;
11324 cx.notify();
11325 }
11326
11327 pub fn set_show_scrollbars(&mut self, show_scrollbars: bool, cx: &mut ViewContext<Self>) {
11328 self.show_scrollbars = show_scrollbars;
11329 cx.notify();
11330 }
11331
11332 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11333 self.show_line_numbers = Some(show_line_numbers);
11334 cx.notify();
11335 }
11336
11337 pub fn set_show_git_diff_gutter(
11338 &mut self,
11339 show_git_diff_gutter: bool,
11340 cx: &mut ViewContext<Self>,
11341 ) {
11342 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11343 cx.notify();
11344 }
11345
11346 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11347 self.show_code_actions = Some(show_code_actions);
11348 cx.notify();
11349 }
11350
11351 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11352 self.show_runnables = Some(show_runnables);
11353 cx.notify();
11354 }
11355
11356 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11357 if self.display_map.read(cx).masked != masked {
11358 self.display_map.update(cx, |map, _| map.masked = masked);
11359 }
11360 cx.notify()
11361 }
11362
11363 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11364 self.show_wrap_guides = Some(show_wrap_guides);
11365 cx.notify();
11366 }
11367
11368 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11369 self.show_indent_guides = Some(show_indent_guides);
11370 cx.notify();
11371 }
11372
11373 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11374 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11375 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11376 if let Some(dir) = file.abs_path(cx).parent() {
11377 return Some(dir.to_owned());
11378 }
11379 }
11380
11381 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11382 return Some(project_path.path.to_path_buf());
11383 }
11384 }
11385
11386 None
11387 }
11388
11389 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11390 self.active_excerpt(cx)?
11391 .1
11392 .read(cx)
11393 .file()
11394 .and_then(|f| f.as_local())
11395 }
11396
11397 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11398 if let Some(target) = self.target_file(cx) {
11399 cx.reveal_path(&target.abs_path(cx));
11400 }
11401 }
11402
11403 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11404 if let Some(file) = self.target_file(cx) {
11405 if let Some(path) = file.abs_path(cx).to_str() {
11406 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11407 }
11408 }
11409 }
11410
11411 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11412 if let Some(file) = self.target_file(cx) {
11413 if let Some(path) = file.path().to_str() {
11414 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11415 }
11416 }
11417 }
11418
11419 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11420 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11421
11422 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11423 self.start_git_blame(true, cx);
11424 }
11425
11426 cx.notify();
11427 }
11428
11429 pub fn toggle_git_blame_inline(
11430 &mut self,
11431 _: &ToggleGitBlameInline,
11432 cx: &mut ViewContext<Self>,
11433 ) {
11434 self.toggle_git_blame_inline_internal(true, cx);
11435 cx.notify();
11436 }
11437
11438 pub fn git_blame_inline_enabled(&self) -> bool {
11439 self.git_blame_inline_enabled
11440 }
11441
11442 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11443 self.show_selection_menu = self
11444 .show_selection_menu
11445 .map(|show_selections_menu| !show_selections_menu)
11446 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11447
11448 cx.notify();
11449 }
11450
11451 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11452 self.show_selection_menu
11453 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11454 }
11455
11456 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11457 if let Some(project) = self.project.as_ref() {
11458 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11459 return;
11460 };
11461
11462 if buffer.read(cx).file().is_none() {
11463 return;
11464 }
11465
11466 let focused = self.focus_handle(cx).contains_focused(cx);
11467
11468 let project = project.clone();
11469 let blame =
11470 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11471 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11472 self.blame = Some(blame);
11473 }
11474 }
11475
11476 fn toggle_git_blame_inline_internal(
11477 &mut self,
11478 user_triggered: bool,
11479 cx: &mut ViewContext<Self>,
11480 ) {
11481 if self.git_blame_inline_enabled {
11482 self.git_blame_inline_enabled = false;
11483 self.show_git_blame_inline = false;
11484 self.show_git_blame_inline_delay_task.take();
11485 } else {
11486 self.git_blame_inline_enabled = true;
11487 self.start_git_blame_inline(user_triggered, cx);
11488 }
11489
11490 cx.notify();
11491 }
11492
11493 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11494 self.start_git_blame(user_triggered, cx);
11495
11496 if ProjectSettings::get_global(cx)
11497 .git
11498 .inline_blame_delay()
11499 .is_some()
11500 {
11501 self.start_inline_blame_timer(cx);
11502 } else {
11503 self.show_git_blame_inline = true
11504 }
11505 }
11506
11507 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11508 self.blame.as_ref()
11509 }
11510
11511 pub fn show_git_blame_gutter(&self) -> bool {
11512 self.show_git_blame_gutter
11513 }
11514
11515 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11516 self.show_git_blame_gutter && self.has_blame_entries(cx)
11517 }
11518
11519 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11520 self.show_git_blame_inline
11521 && self.focus_handle.is_focused(cx)
11522 && !self.newest_selection_head_on_empty_line(cx)
11523 && self.has_blame_entries(cx)
11524 }
11525
11526 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11527 self.blame()
11528 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11529 }
11530
11531 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11532 let cursor_anchor = self.selections.newest_anchor().head();
11533
11534 let snapshot = self.buffer.read(cx).snapshot(cx);
11535 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11536
11537 snapshot.line_len(buffer_row) == 0
11538 }
11539
11540 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11541 let buffer_and_selection = maybe!({
11542 let selection = self.selections.newest::<Point>(cx);
11543 let selection_range = selection.range();
11544
11545 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11546 (buffer, selection_range.start.row..selection_range.end.row)
11547 } else {
11548 let multi_buffer = self.buffer().read(cx);
11549 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
11550 let buffer_ranges = multi_buffer_snapshot.range_to_buffer_ranges(selection_range);
11551
11552 let (excerpt, range) = if selection.reversed {
11553 buffer_ranges.first()
11554 } else {
11555 buffer_ranges.last()
11556 }?;
11557
11558 let snapshot = excerpt.buffer();
11559 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11560 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11561 (
11562 multi_buffer.buffer(excerpt.buffer_id()).unwrap().clone(),
11563 selection,
11564 )
11565 };
11566
11567 Some((buffer, selection))
11568 });
11569
11570 let Some((buffer, selection)) = buffer_and_selection else {
11571 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11572 };
11573
11574 let Some(project) = self.project.as_ref() else {
11575 return Task::ready(Err(anyhow!("editor does not have project")));
11576 };
11577
11578 project.update(cx, |project, cx| {
11579 project.get_permalink_to_line(&buffer, selection, cx)
11580 })
11581 }
11582
11583 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11584 let permalink_task = self.get_permalink_to_line(cx);
11585 let workspace = self.workspace();
11586
11587 cx.spawn(|_, mut cx| async move {
11588 match permalink_task.await {
11589 Ok(permalink) => {
11590 cx.update(|cx| {
11591 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11592 })
11593 .ok();
11594 }
11595 Err(err) => {
11596 let message = format!("Failed to copy permalink: {err}");
11597
11598 Err::<(), anyhow::Error>(err).log_err();
11599
11600 if let Some(workspace) = workspace {
11601 workspace
11602 .update(&mut cx, |workspace, cx| {
11603 struct CopyPermalinkToLine;
11604
11605 workspace.show_toast(
11606 Toast::new(
11607 NotificationId::unique::<CopyPermalinkToLine>(),
11608 message,
11609 ),
11610 cx,
11611 )
11612 })
11613 .ok();
11614 }
11615 }
11616 }
11617 })
11618 .detach();
11619 }
11620
11621 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11622 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11623 if let Some(file) = self.target_file(cx) {
11624 if let Some(path) = file.path().to_str() {
11625 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11626 }
11627 }
11628 }
11629
11630 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, 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.open_url(permalink.as_ref());
11639 })
11640 .ok();
11641 }
11642 Err(err) => {
11643 let message = format!("Failed to open 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 OpenPermalinkToLine;
11651
11652 workspace.show_toast(
11653 Toast::new(
11654 NotificationId::unique::<OpenPermalinkToLine>(),
11655 message,
11656 ),
11657 cx,
11658 )
11659 })
11660 .ok();
11661 }
11662 }
11663 }
11664 })
11665 .detach();
11666 }
11667
11668 pub fn insert_uuid_v4(&mut self, _: &InsertUuidV4, cx: &mut ViewContext<Self>) {
11669 self.insert_uuid(UuidVersion::V4, cx);
11670 }
11671
11672 pub fn insert_uuid_v7(&mut self, _: &InsertUuidV7, cx: &mut ViewContext<Self>) {
11673 self.insert_uuid(UuidVersion::V7, cx);
11674 }
11675
11676 fn insert_uuid(&mut self, version: UuidVersion, cx: &mut ViewContext<Self>) {
11677 self.transact(cx, |this, cx| {
11678 let edits = this
11679 .selections
11680 .all::<Point>(cx)
11681 .into_iter()
11682 .map(|selection| {
11683 let uuid = match version {
11684 UuidVersion::V4 => uuid::Uuid::new_v4(),
11685 UuidVersion::V7 => uuid::Uuid::now_v7(),
11686 };
11687
11688 (selection.range(), uuid.to_string())
11689 });
11690 this.edit(edits, cx);
11691 this.refresh_inline_completion(true, false, cx);
11692 });
11693 }
11694
11695 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11696 /// last highlight added will be used.
11697 ///
11698 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11699 pub fn highlight_rows<T: 'static>(
11700 &mut self,
11701 range: Range<Anchor>,
11702 color: Hsla,
11703 should_autoscroll: bool,
11704 cx: &mut ViewContext<Self>,
11705 ) {
11706 let snapshot = self.buffer().read(cx).snapshot(cx);
11707 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11708 let ix = row_highlights.binary_search_by(|highlight| {
11709 Ordering::Equal
11710 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11711 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11712 });
11713
11714 if let Err(mut ix) = ix {
11715 let index = post_inc(&mut self.highlight_order);
11716
11717 // If this range intersects with the preceding highlight, then merge it with
11718 // the preceding highlight. Otherwise insert a new highlight.
11719 let mut merged = false;
11720 if ix > 0 {
11721 let prev_highlight = &mut row_highlights[ix - 1];
11722 if prev_highlight
11723 .range
11724 .end
11725 .cmp(&range.start, &snapshot)
11726 .is_ge()
11727 {
11728 ix -= 1;
11729 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11730 prev_highlight.range.end = range.end;
11731 }
11732 merged = true;
11733 prev_highlight.index = index;
11734 prev_highlight.color = color;
11735 prev_highlight.should_autoscroll = should_autoscroll;
11736 }
11737 }
11738
11739 if !merged {
11740 row_highlights.insert(
11741 ix,
11742 RowHighlight {
11743 range: range.clone(),
11744 index,
11745 color,
11746 should_autoscroll,
11747 },
11748 );
11749 }
11750
11751 // If any of the following highlights intersect with this one, merge them.
11752 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11753 let highlight = &row_highlights[ix];
11754 if next_highlight
11755 .range
11756 .start
11757 .cmp(&highlight.range.end, &snapshot)
11758 .is_le()
11759 {
11760 if next_highlight
11761 .range
11762 .end
11763 .cmp(&highlight.range.end, &snapshot)
11764 .is_gt()
11765 {
11766 row_highlights[ix].range.end = next_highlight.range.end;
11767 }
11768 row_highlights.remove(ix + 1);
11769 } else {
11770 break;
11771 }
11772 }
11773 }
11774 }
11775
11776 /// Remove any highlighted row ranges of the given type that intersect the
11777 /// given ranges.
11778 pub fn remove_highlighted_rows<T: 'static>(
11779 &mut self,
11780 ranges_to_remove: Vec<Range<Anchor>>,
11781 cx: &mut ViewContext<Self>,
11782 ) {
11783 let snapshot = self.buffer().read(cx).snapshot(cx);
11784 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11785 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11786 row_highlights.retain(|highlight| {
11787 while let Some(range_to_remove) = ranges_to_remove.peek() {
11788 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11789 Ordering::Less | Ordering::Equal => {
11790 ranges_to_remove.next();
11791 }
11792 Ordering::Greater => {
11793 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11794 Ordering::Less | Ordering::Equal => {
11795 return false;
11796 }
11797 Ordering::Greater => break,
11798 }
11799 }
11800 }
11801 }
11802
11803 true
11804 })
11805 }
11806
11807 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11808 pub fn clear_row_highlights<T: 'static>(&mut self) {
11809 self.highlighted_rows.remove(&TypeId::of::<T>());
11810 }
11811
11812 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11813 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11814 self.highlighted_rows
11815 .get(&TypeId::of::<T>())
11816 .map_or(&[] as &[_], |vec| vec.as_slice())
11817 .iter()
11818 .map(|highlight| (highlight.range.clone(), highlight.color))
11819 }
11820
11821 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11822 /// Returns a map of display rows that are highlighted and their corresponding highlight color.
11823 /// Allows to ignore certain kinds of highlights.
11824 pub fn highlighted_display_rows(
11825 &mut self,
11826 cx: &mut WindowContext,
11827 ) -> BTreeMap<DisplayRow, Hsla> {
11828 let snapshot = self.snapshot(cx);
11829 let mut used_highlight_orders = HashMap::default();
11830 self.highlighted_rows
11831 .iter()
11832 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11833 .fold(
11834 BTreeMap::<DisplayRow, Hsla>::new(),
11835 |mut unique_rows, highlight| {
11836 let start = highlight.range.start.to_display_point(&snapshot);
11837 let end = highlight.range.end.to_display_point(&snapshot);
11838 let start_row = start.row().0;
11839 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11840 && end.column() == 0
11841 {
11842 end.row().0.saturating_sub(1)
11843 } else {
11844 end.row().0
11845 };
11846 for row in start_row..=end_row {
11847 let used_index =
11848 used_highlight_orders.entry(row).or_insert(highlight.index);
11849 if highlight.index >= *used_index {
11850 *used_index = highlight.index;
11851 unique_rows.insert(DisplayRow(row), highlight.color);
11852 }
11853 }
11854 unique_rows
11855 },
11856 )
11857 }
11858
11859 pub fn highlighted_display_row_for_autoscroll(
11860 &self,
11861 snapshot: &DisplaySnapshot,
11862 ) -> Option<DisplayRow> {
11863 self.highlighted_rows
11864 .values()
11865 .flat_map(|highlighted_rows| highlighted_rows.iter())
11866 .filter_map(|highlight| {
11867 if highlight.should_autoscroll {
11868 Some(highlight.range.start.to_display_point(snapshot).row())
11869 } else {
11870 None
11871 }
11872 })
11873 .min()
11874 }
11875
11876 pub fn set_search_within_ranges(
11877 &mut self,
11878 ranges: &[Range<Anchor>],
11879 cx: &mut ViewContext<Self>,
11880 ) {
11881 self.highlight_background::<SearchWithinRange>(
11882 ranges,
11883 |colors| colors.editor_document_highlight_read_background,
11884 cx,
11885 )
11886 }
11887
11888 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11889 self.breadcrumb_header = Some(new_header);
11890 }
11891
11892 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11893 self.clear_background_highlights::<SearchWithinRange>(cx);
11894 }
11895
11896 pub fn highlight_background<T: 'static>(
11897 &mut self,
11898 ranges: &[Range<Anchor>],
11899 color_fetcher: fn(&ThemeColors) -> Hsla,
11900 cx: &mut ViewContext<Self>,
11901 ) {
11902 self.background_highlights
11903 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11904 self.scrollbar_marker_state.dirty = true;
11905 cx.notify();
11906 }
11907
11908 pub fn clear_background_highlights<T: 'static>(
11909 &mut self,
11910 cx: &mut ViewContext<Self>,
11911 ) -> Option<BackgroundHighlight> {
11912 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11913 if !text_highlights.1.is_empty() {
11914 self.scrollbar_marker_state.dirty = true;
11915 cx.notify();
11916 }
11917 Some(text_highlights)
11918 }
11919
11920 pub fn highlight_gutter<T: 'static>(
11921 &mut self,
11922 ranges: &[Range<Anchor>],
11923 color_fetcher: fn(&AppContext) -> Hsla,
11924 cx: &mut ViewContext<Self>,
11925 ) {
11926 self.gutter_highlights
11927 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11928 cx.notify();
11929 }
11930
11931 pub fn clear_gutter_highlights<T: 'static>(
11932 &mut self,
11933 cx: &mut ViewContext<Self>,
11934 ) -> Option<GutterHighlight> {
11935 cx.notify();
11936 self.gutter_highlights.remove(&TypeId::of::<T>())
11937 }
11938
11939 #[cfg(feature = "test-support")]
11940 pub fn all_text_background_highlights(
11941 &mut self,
11942 cx: &mut ViewContext<Self>,
11943 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11944 let snapshot = self.snapshot(cx);
11945 let buffer = &snapshot.buffer_snapshot;
11946 let start = buffer.anchor_before(0);
11947 let end = buffer.anchor_after(buffer.len());
11948 let theme = cx.theme().colors();
11949 self.background_highlights_in_range(start..end, &snapshot, theme)
11950 }
11951
11952 #[cfg(feature = "test-support")]
11953 pub fn search_background_highlights(
11954 &mut self,
11955 cx: &mut ViewContext<Self>,
11956 ) -> Vec<Range<Point>> {
11957 let snapshot = self.buffer().read(cx).snapshot(cx);
11958
11959 let highlights = self
11960 .background_highlights
11961 .get(&TypeId::of::<items::BufferSearchHighlights>());
11962
11963 if let Some((_color, ranges)) = highlights {
11964 ranges
11965 .iter()
11966 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11967 .collect_vec()
11968 } else {
11969 vec![]
11970 }
11971 }
11972
11973 fn document_highlights_for_position<'a>(
11974 &'a self,
11975 position: Anchor,
11976 buffer: &'a MultiBufferSnapshot,
11977 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11978 let read_highlights = self
11979 .background_highlights
11980 .get(&TypeId::of::<DocumentHighlightRead>())
11981 .map(|h| &h.1);
11982 let write_highlights = self
11983 .background_highlights
11984 .get(&TypeId::of::<DocumentHighlightWrite>())
11985 .map(|h| &h.1);
11986 let left_position = position.bias_left(buffer);
11987 let right_position = position.bias_right(buffer);
11988 read_highlights
11989 .into_iter()
11990 .chain(write_highlights)
11991 .flat_map(move |ranges| {
11992 let start_ix = match ranges.binary_search_by(|probe| {
11993 let cmp = probe.end.cmp(&left_position, buffer);
11994 if cmp.is_ge() {
11995 Ordering::Greater
11996 } else {
11997 Ordering::Less
11998 }
11999 }) {
12000 Ok(i) | Err(i) => i,
12001 };
12002
12003 ranges[start_ix..]
12004 .iter()
12005 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12006 })
12007 }
12008
12009 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12010 self.background_highlights
12011 .get(&TypeId::of::<T>())
12012 .map_or(false, |(_, highlights)| !highlights.is_empty())
12013 }
12014
12015 pub fn background_highlights_in_range(
12016 &self,
12017 search_range: Range<Anchor>,
12018 display_snapshot: &DisplaySnapshot,
12019 theme: &ThemeColors,
12020 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12021 let mut results = Vec::new();
12022 for (color_fetcher, ranges) in self.background_highlights.values() {
12023 let color = color_fetcher(theme);
12024 let start_ix = match ranges.binary_search_by(|probe| {
12025 let cmp = probe
12026 .end
12027 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12028 if cmp.is_gt() {
12029 Ordering::Greater
12030 } else {
12031 Ordering::Less
12032 }
12033 }) {
12034 Ok(i) | Err(i) => i,
12035 };
12036 for range in &ranges[start_ix..] {
12037 if range
12038 .start
12039 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12040 .is_ge()
12041 {
12042 break;
12043 }
12044
12045 let start = range.start.to_display_point(display_snapshot);
12046 let end = range.end.to_display_point(display_snapshot);
12047 results.push((start..end, color))
12048 }
12049 }
12050 results
12051 }
12052
12053 pub fn background_highlight_row_ranges<T: 'static>(
12054 &self,
12055 search_range: Range<Anchor>,
12056 display_snapshot: &DisplaySnapshot,
12057 count: usize,
12058 ) -> Vec<RangeInclusive<DisplayPoint>> {
12059 let mut results = Vec::new();
12060 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12061 return vec![];
12062 };
12063
12064 let start_ix = match ranges.binary_search_by(|probe| {
12065 let cmp = probe
12066 .end
12067 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12068 if cmp.is_gt() {
12069 Ordering::Greater
12070 } else {
12071 Ordering::Less
12072 }
12073 }) {
12074 Ok(i) | Err(i) => i,
12075 };
12076 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12077 if let (Some(start_display), Some(end_display)) = (start, end) {
12078 results.push(
12079 start_display.to_display_point(display_snapshot)
12080 ..=end_display.to_display_point(display_snapshot),
12081 );
12082 }
12083 };
12084 let mut start_row: Option<Point> = None;
12085 let mut end_row: Option<Point> = None;
12086 if ranges.len() > count {
12087 return Vec::new();
12088 }
12089 for range in &ranges[start_ix..] {
12090 if range
12091 .start
12092 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12093 .is_ge()
12094 {
12095 break;
12096 }
12097 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12098 if let Some(current_row) = &end_row {
12099 if end.row == current_row.row {
12100 continue;
12101 }
12102 }
12103 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12104 if start_row.is_none() {
12105 assert_eq!(end_row, None);
12106 start_row = Some(start);
12107 end_row = Some(end);
12108 continue;
12109 }
12110 if let Some(current_end) = end_row.as_mut() {
12111 if start.row > current_end.row + 1 {
12112 push_region(start_row, end_row);
12113 start_row = Some(start);
12114 end_row = Some(end);
12115 } else {
12116 // Merge two hunks.
12117 *current_end = end;
12118 }
12119 } else {
12120 unreachable!();
12121 }
12122 }
12123 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12124 push_region(start_row, end_row);
12125 results
12126 }
12127
12128 pub fn gutter_highlights_in_range(
12129 &self,
12130 search_range: Range<Anchor>,
12131 display_snapshot: &DisplaySnapshot,
12132 cx: &AppContext,
12133 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12134 let mut results = Vec::new();
12135 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12136 let color = color_fetcher(cx);
12137 let start_ix = match ranges.binary_search_by(|probe| {
12138 let cmp = probe
12139 .end
12140 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12141 if cmp.is_gt() {
12142 Ordering::Greater
12143 } else {
12144 Ordering::Less
12145 }
12146 }) {
12147 Ok(i) | Err(i) => i,
12148 };
12149 for range in &ranges[start_ix..] {
12150 if range
12151 .start
12152 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12153 .is_ge()
12154 {
12155 break;
12156 }
12157
12158 let start = range.start.to_display_point(display_snapshot);
12159 let end = range.end.to_display_point(display_snapshot);
12160 results.push((start..end, color))
12161 }
12162 }
12163 results
12164 }
12165
12166 /// Get the text ranges corresponding to the redaction query
12167 pub fn redacted_ranges(
12168 &self,
12169 search_range: Range<Anchor>,
12170 display_snapshot: &DisplaySnapshot,
12171 cx: &WindowContext,
12172 ) -> Vec<Range<DisplayPoint>> {
12173 display_snapshot
12174 .buffer_snapshot
12175 .redacted_ranges(search_range, |file| {
12176 if let Some(file) = file {
12177 file.is_private()
12178 && EditorSettings::get(
12179 Some(SettingsLocation {
12180 worktree_id: file.worktree_id(cx),
12181 path: file.path().as_ref(),
12182 }),
12183 cx,
12184 )
12185 .redact_private_values
12186 } else {
12187 false
12188 }
12189 })
12190 .map(|range| {
12191 range.start.to_display_point(display_snapshot)
12192 ..range.end.to_display_point(display_snapshot)
12193 })
12194 .collect()
12195 }
12196
12197 pub fn highlight_text<T: 'static>(
12198 &mut self,
12199 ranges: Vec<Range<Anchor>>,
12200 style: HighlightStyle,
12201 cx: &mut ViewContext<Self>,
12202 ) {
12203 self.display_map.update(cx, |map, _| {
12204 map.highlight_text(TypeId::of::<T>(), ranges, style)
12205 });
12206 cx.notify();
12207 }
12208
12209 pub(crate) fn highlight_inlays<T: 'static>(
12210 &mut self,
12211 highlights: Vec<InlayHighlight>,
12212 style: HighlightStyle,
12213 cx: &mut ViewContext<Self>,
12214 ) {
12215 self.display_map.update(cx, |map, _| {
12216 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12217 });
12218 cx.notify();
12219 }
12220
12221 pub fn text_highlights<'a, T: 'static>(
12222 &'a self,
12223 cx: &'a AppContext,
12224 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12225 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12226 }
12227
12228 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12229 let cleared = self
12230 .display_map
12231 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12232 if cleared {
12233 cx.notify();
12234 }
12235 }
12236
12237 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12238 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12239 && self.focus_handle.is_focused(cx)
12240 }
12241
12242 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12243 self.show_cursor_when_unfocused = is_enabled;
12244 cx.notify();
12245 }
12246
12247 pub fn lsp_store(&self, cx: &AppContext) -> Option<Model<LspStore>> {
12248 self.project
12249 .as_ref()
12250 .map(|project| project.read(cx).lsp_store())
12251 }
12252
12253 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12254 cx.notify();
12255 }
12256
12257 fn on_buffer_event(
12258 &mut self,
12259 multibuffer: Model<MultiBuffer>,
12260 event: &multi_buffer::Event,
12261 cx: &mut ViewContext<Self>,
12262 ) {
12263 match event {
12264 multi_buffer::Event::Edited {
12265 singleton_buffer_edited,
12266 edited_buffer: buffer_edited,
12267 } => {
12268 self.scrollbar_marker_state.dirty = true;
12269 self.active_indent_guides_state.dirty = true;
12270 self.refresh_active_diagnostics(cx);
12271 self.refresh_code_actions(cx);
12272 if self.has_active_inline_completion() {
12273 self.update_visible_inline_completion(cx);
12274 }
12275 if let Some(buffer) = buffer_edited {
12276 let buffer_id = buffer.read(cx).remote_id();
12277 if !self.registered_buffers.contains_key(&buffer_id) {
12278 if let Some(lsp_store) = self.lsp_store(cx) {
12279 lsp_store.update(cx, |lsp_store, cx| {
12280 self.registered_buffers.insert(
12281 buffer_id,
12282 lsp_store.register_buffer_with_language_servers(&buffer, cx),
12283 );
12284 })
12285 }
12286 }
12287 }
12288 cx.emit(EditorEvent::BufferEdited);
12289 cx.emit(SearchEvent::MatchesInvalidated);
12290 if *singleton_buffer_edited {
12291 if let Some(project) = &self.project {
12292 let project = project.read(cx);
12293 #[allow(clippy::mutable_key_type)]
12294 let languages_affected = multibuffer
12295 .read(cx)
12296 .all_buffers()
12297 .into_iter()
12298 .filter_map(|buffer| {
12299 let buffer = buffer.read(cx);
12300 let language = buffer.language()?;
12301 if project.is_local()
12302 && project
12303 .language_servers_for_local_buffer(buffer, cx)
12304 .count()
12305 == 0
12306 {
12307 None
12308 } else {
12309 Some(language)
12310 }
12311 })
12312 .cloned()
12313 .collect::<HashSet<_>>();
12314 if !languages_affected.is_empty() {
12315 self.refresh_inlay_hints(
12316 InlayHintRefreshReason::BufferEdited(languages_affected),
12317 cx,
12318 );
12319 }
12320 }
12321 }
12322
12323 let Some(project) = &self.project else { return };
12324 let (telemetry, is_via_ssh) = {
12325 let project = project.read(cx);
12326 let telemetry = project.client().telemetry().clone();
12327 let is_via_ssh = project.is_via_ssh();
12328 (telemetry, is_via_ssh)
12329 };
12330 refresh_linked_ranges(self, cx);
12331 telemetry.log_edit_event("editor", is_via_ssh);
12332 }
12333 multi_buffer::Event::ExcerptsAdded {
12334 buffer,
12335 predecessor,
12336 excerpts,
12337 } => {
12338 self.tasks_update_task = Some(self.refresh_runnables(cx));
12339 let buffer_id = buffer.read(cx).remote_id();
12340 if !self.diff_map.diff_bases.contains_key(&buffer_id) {
12341 if let Some(project) = &self.project {
12342 get_unstaged_changes_for_buffers(project, [buffer.clone()], cx);
12343 }
12344 }
12345 cx.emit(EditorEvent::ExcerptsAdded {
12346 buffer: buffer.clone(),
12347 predecessor: *predecessor,
12348 excerpts: excerpts.clone(),
12349 });
12350 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12351 }
12352 multi_buffer::Event::ExcerptsRemoved { ids } => {
12353 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12354 let buffer = self.buffer.read(cx);
12355 self.registered_buffers
12356 .retain(|buffer_id, _| buffer.buffer(*buffer_id).is_some());
12357 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12358 }
12359 multi_buffer::Event::ExcerptsEdited { ids } => {
12360 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12361 }
12362 multi_buffer::Event::ExcerptsExpanded { ids } => {
12363 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12364 }
12365 multi_buffer::Event::Reparsed(buffer_id) => {
12366 self.tasks_update_task = Some(self.refresh_runnables(cx));
12367
12368 cx.emit(EditorEvent::Reparsed(*buffer_id));
12369 }
12370 multi_buffer::Event::LanguageChanged(buffer_id) => {
12371 linked_editing_ranges::refresh_linked_ranges(self, cx);
12372 cx.emit(EditorEvent::Reparsed(*buffer_id));
12373 cx.notify();
12374 }
12375 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12376 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12377 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12378 cx.emit(EditorEvent::TitleChanged)
12379 }
12380 // multi_buffer::Event::DiffBaseChanged => {
12381 // self.scrollbar_marker_state.dirty = true;
12382 // cx.emit(EditorEvent::DiffBaseChanged);
12383 // cx.notify();
12384 // }
12385 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12386 multi_buffer::Event::DiagnosticsUpdated => {
12387 self.refresh_active_diagnostics(cx);
12388 self.scrollbar_marker_state.dirty = true;
12389 cx.notify();
12390 }
12391 _ => {}
12392 };
12393 }
12394
12395 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12396 cx.notify();
12397 }
12398
12399 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12400 self.tasks_update_task = Some(self.refresh_runnables(cx));
12401 self.refresh_inline_completion(true, false, cx);
12402 self.refresh_inlay_hints(
12403 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12404 self.selections.newest_anchor().head(),
12405 &self.buffer.read(cx).snapshot(cx),
12406 cx,
12407 )),
12408 cx,
12409 );
12410
12411 let old_cursor_shape = self.cursor_shape;
12412
12413 {
12414 let editor_settings = EditorSettings::get_global(cx);
12415 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12416 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12417 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12418 }
12419
12420 if old_cursor_shape != self.cursor_shape {
12421 cx.emit(EditorEvent::CursorShapeChanged);
12422 }
12423
12424 let project_settings = ProjectSettings::get_global(cx);
12425 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12426
12427 if self.mode == EditorMode::Full {
12428 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12429 if self.git_blame_inline_enabled != inline_blame_enabled {
12430 self.toggle_git_blame_inline_internal(false, cx);
12431 }
12432 }
12433
12434 cx.notify();
12435 }
12436
12437 pub fn set_searchable(&mut self, searchable: bool) {
12438 self.searchable = searchable;
12439 }
12440
12441 pub fn searchable(&self) -> bool {
12442 self.searchable
12443 }
12444
12445 fn open_proposed_changes_editor(
12446 &mut self,
12447 _: &OpenProposedChangesEditor,
12448 cx: &mut ViewContext<Self>,
12449 ) {
12450 let Some(workspace) = self.workspace() else {
12451 cx.propagate();
12452 return;
12453 };
12454
12455 let selections = self.selections.all::<usize>(cx);
12456 let multi_buffer = self.buffer.read(cx);
12457 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
12458 let mut new_selections_by_buffer = HashMap::default();
12459 for selection in selections {
12460 for (excerpt, range) in
12461 multi_buffer_snapshot.range_to_buffer_ranges(selection.start..selection.end)
12462 {
12463 let mut range = range.to_point(excerpt.buffer());
12464 range.start.column = 0;
12465 range.end.column = excerpt.buffer().line_len(range.end.row);
12466 new_selections_by_buffer
12467 .entry(multi_buffer.buffer(excerpt.buffer_id()).unwrap())
12468 .or_insert(Vec::new())
12469 .push(range)
12470 }
12471 }
12472
12473 let proposed_changes_buffers = new_selections_by_buffer
12474 .into_iter()
12475 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12476 .collect::<Vec<_>>();
12477 let proposed_changes_editor = cx.new_view(|cx| {
12478 ProposedChangesEditor::new(
12479 "Proposed changes",
12480 proposed_changes_buffers,
12481 self.project.clone(),
12482 cx,
12483 )
12484 });
12485
12486 cx.window_context().defer(move |cx| {
12487 workspace.update(cx, |workspace, cx| {
12488 workspace.active_pane().update(cx, |pane, cx| {
12489 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12490 });
12491 });
12492 });
12493 }
12494
12495 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12496 self.open_excerpts_common(None, true, cx)
12497 }
12498
12499 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12500 self.open_excerpts_common(None, false, cx)
12501 }
12502
12503 fn open_excerpts_common(
12504 &mut self,
12505 jump_data: Option<JumpData>,
12506 split: bool,
12507 cx: &mut ViewContext<Self>,
12508 ) {
12509 let Some(workspace) = self.workspace() else {
12510 cx.propagate();
12511 return;
12512 };
12513
12514 if self.buffer.read(cx).is_singleton() {
12515 cx.propagate();
12516 return;
12517 }
12518
12519 let mut new_selections_by_buffer = HashMap::default();
12520 match &jump_data {
12521 Some(JumpData::MultiBufferPoint {
12522 excerpt_id,
12523 position,
12524 anchor,
12525 line_offset_from_top,
12526 }) => {
12527 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12528 if let Some(buffer) = multi_buffer_snapshot
12529 .buffer_id_for_excerpt(*excerpt_id)
12530 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12531 {
12532 let buffer_snapshot = buffer.read(cx).snapshot();
12533 let jump_to_point = if buffer_snapshot.can_resolve(anchor) {
12534 language::ToPoint::to_point(anchor, &buffer_snapshot)
12535 } else {
12536 buffer_snapshot.clip_point(*position, Bias::Left)
12537 };
12538 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12539 new_selections_by_buffer.insert(
12540 buffer,
12541 (
12542 vec![jump_to_offset..jump_to_offset],
12543 Some(*line_offset_from_top),
12544 ),
12545 );
12546 }
12547 }
12548 Some(JumpData::MultiBufferRow {
12549 row,
12550 line_offset_from_top,
12551 }) => {
12552 let point = MultiBufferPoint::new(row.0, 0);
12553 if let Some((buffer, buffer_point, _)) =
12554 self.buffer.read(cx).point_to_buffer_point(point, cx)
12555 {
12556 let buffer_offset = buffer.read(cx).point_to_offset(buffer_point);
12557 new_selections_by_buffer
12558 .entry(buffer)
12559 .or_insert((Vec::new(), Some(*line_offset_from_top)))
12560 .0
12561 .push(buffer_offset..buffer_offset)
12562 }
12563 }
12564 None => {
12565 let selections = self.selections.all::<usize>(cx);
12566 let multi_buffer = self.buffer.read(cx);
12567 for selection in selections {
12568 for (excerpt, mut range) in multi_buffer
12569 .snapshot(cx)
12570 .range_to_buffer_ranges(selection.range())
12571 {
12572 // When editing branch buffers, jump to the corresponding location
12573 // in their base buffer.
12574 let mut buffer_handle = multi_buffer.buffer(excerpt.buffer_id()).unwrap();
12575 let buffer = buffer_handle.read(cx);
12576 if let Some(base_buffer) = buffer.base_buffer() {
12577 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12578 buffer_handle = base_buffer;
12579 }
12580
12581 if selection.reversed {
12582 mem::swap(&mut range.start, &mut range.end);
12583 }
12584 new_selections_by_buffer
12585 .entry(buffer_handle)
12586 .or_insert((Vec::new(), None))
12587 .0
12588 .push(range)
12589 }
12590 }
12591 }
12592 }
12593
12594 if new_selections_by_buffer.is_empty() {
12595 return;
12596 }
12597
12598 // We defer the pane interaction because we ourselves are a workspace item
12599 // and activating a new item causes the pane to call a method on us reentrantly,
12600 // which panics if we're on the stack.
12601 cx.window_context().defer(move |cx| {
12602 workspace.update(cx, |workspace, cx| {
12603 let pane = if split {
12604 workspace.adjacent_pane(cx)
12605 } else {
12606 workspace.active_pane().clone()
12607 };
12608
12609 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12610 let editor = buffer
12611 .read(cx)
12612 .file()
12613 .is_none()
12614 .then(|| {
12615 // Handle file-less buffers separately: those are not really the project items, so won't have a project path or entity id,
12616 // so `workspace.open_project_item` will never find them, always opening a new editor.
12617 // Instead, we try to activate the existing editor in the pane first.
12618 let (editor, pane_item_index) =
12619 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12620 let editor = item.downcast::<Editor>()?;
12621 let singleton_buffer =
12622 editor.read(cx).buffer().read(cx).as_singleton()?;
12623 if singleton_buffer == buffer {
12624 Some((editor, i))
12625 } else {
12626 None
12627 }
12628 })?;
12629 pane.update(cx, |pane, cx| {
12630 pane.activate_item(pane_item_index, true, true, cx)
12631 });
12632 Some(editor)
12633 })
12634 .flatten()
12635 .unwrap_or_else(|| {
12636 workspace.open_project_item::<Self>(
12637 pane.clone(),
12638 buffer,
12639 true,
12640 true,
12641 cx,
12642 )
12643 });
12644
12645 editor.update(cx, |editor, cx| {
12646 let autoscroll = match scroll_offset {
12647 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12648 None => Autoscroll::newest(),
12649 };
12650 let nav_history = editor.nav_history.take();
12651 editor.change_selections(Some(autoscroll), cx, |s| {
12652 s.select_ranges(ranges);
12653 });
12654 editor.nav_history = nav_history;
12655 });
12656 }
12657 })
12658 });
12659 }
12660
12661 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12662 let snapshot = self.buffer.read(cx).read(cx);
12663 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12664 Some(
12665 ranges
12666 .iter()
12667 .map(move |range| {
12668 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12669 })
12670 .collect(),
12671 )
12672 }
12673
12674 fn selection_replacement_ranges(
12675 &self,
12676 range: Range<OffsetUtf16>,
12677 cx: &mut AppContext,
12678 ) -> Vec<Range<OffsetUtf16>> {
12679 let selections = self.selections.all::<OffsetUtf16>(cx);
12680 let newest_selection = selections
12681 .iter()
12682 .max_by_key(|selection| selection.id)
12683 .unwrap();
12684 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12685 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12686 let snapshot = self.buffer.read(cx).read(cx);
12687 selections
12688 .into_iter()
12689 .map(|mut selection| {
12690 selection.start.0 =
12691 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12692 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12693 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12694 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12695 })
12696 .collect()
12697 }
12698
12699 fn report_editor_event(
12700 &self,
12701 event_type: &'static str,
12702 file_extension: Option<String>,
12703 cx: &AppContext,
12704 ) {
12705 if cfg!(any(test, feature = "test-support")) {
12706 return;
12707 }
12708
12709 let Some(project) = &self.project else { return };
12710
12711 // If None, we are in a file without an extension
12712 let file = self
12713 .buffer
12714 .read(cx)
12715 .as_singleton()
12716 .and_then(|b| b.read(cx).file());
12717 let file_extension = file_extension.or(file
12718 .as_ref()
12719 .and_then(|file| Path::new(file.file_name(cx)).extension())
12720 .and_then(|e| e.to_str())
12721 .map(|a| a.to_string()));
12722
12723 let vim_mode = cx
12724 .global::<SettingsStore>()
12725 .raw_user_settings()
12726 .get("vim_mode")
12727 == Some(&serde_json::Value::Bool(true));
12728
12729 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12730 == language::language_settings::InlineCompletionProvider::Copilot;
12731 let copilot_enabled_for_language = self
12732 .buffer
12733 .read(cx)
12734 .settings_at(0, cx)
12735 .show_inline_completions;
12736
12737 let project = project.read(cx);
12738 telemetry::event!(
12739 event_type,
12740 file_extension,
12741 vim_mode,
12742 copilot_enabled,
12743 copilot_enabled_for_language,
12744 is_via_ssh = project.is_via_ssh(),
12745 );
12746 }
12747
12748 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12749 /// with each line being an array of {text, highlight} objects.
12750 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12751 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12752 return;
12753 };
12754
12755 #[derive(Serialize)]
12756 struct Chunk<'a> {
12757 text: String,
12758 highlight: Option<&'a str>,
12759 }
12760
12761 let snapshot = buffer.read(cx).snapshot();
12762 let range = self
12763 .selected_text_range(false, cx)
12764 .and_then(|selection| {
12765 if selection.range.is_empty() {
12766 None
12767 } else {
12768 Some(selection.range)
12769 }
12770 })
12771 .unwrap_or_else(|| 0..snapshot.len());
12772
12773 let chunks = snapshot.chunks(range, true);
12774 let mut lines = Vec::new();
12775 let mut line: VecDeque<Chunk> = VecDeque::new();
12776
12777 let Some(style) = self.style.as_ref() else {
12778 return;
12779 };
12780
12781 for chunk in chunks {
12782 let highlight = chunk
12783 .syntax_highlight_id
12784 .and_then(|id| id.name(&style.syntax));
12785 let mut chunk_lines = chunk.text.split('\n').peekable();
12786 while let Some(text) = chunk_lines.next() {
12787 let mut merged_with_last_token = false;
12788 if let Some(last_token) = line.back_mut() {
12789 if last_token.highlight == highlight {
12790 last_token.text.push_str(text);
12791 merged_with_last_token = true;
12792 }
12793 }
12794
12795 if !merged_with_last_token {
12796 line.push_back(Chunk {
12797 text: text.into(),
12798 highlight,
12799 });
12800 }
12801
12802 if chunk_lines.peek().is_some() {
12803 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12804 line.pop_front();
12805 }
12806 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12807 line.pop_back();
12808 }
12809
12810 lines.push(mem::take(&mut line));
12811 }
12812 }
12813 }
12814
12815 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12816 return;
12817 };
12818 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12819 }
12820
12821 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
12822 self.request_autoscroll(Autoscroll::newest(), cx);
12823 let position = self.selections.newest_display(cx).start;
12824 mouse_context_menu::deploy_context_menu(self, None, position, cx);
12825 }
12826
12827 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12828 &self.inlay_hint_cache
12829 }
12830
12831 pub fn replay_insert_event(
12832 &mut self,
12833 text: &str,
12834 relative_utf16_range: Option<Range<isize>>,
12835 cx: &mut ViewContext<Self>,
12836 ) {
12837 if !self.input_enabled {
12838 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12839 return;
12840 }
12841 if let Some(relative_utf16_range) = relative_utf16_range {
12842 let selections = self.selections.all::<OffsetUtf16>(cx);
12843 self.change_selections(None, cx, |s| {
12844 let new_ranges = selections.into_iter().map(|range| {
12845 let start = OffsetUtf16(
12846 range
12847 .head()
12848 .0
12849 .saturating_add_signed(relative_utf16_range.start),
12850 );
12851 let end = OffsetUtf16(
12852 range
12853 .head()
12854 .0
12855 .saturating_add_signed(relative_utf16_range.end),
12856 );
12857 start..end
12858 });
12859 s.select_ranges(new_ranges);
12860 });
12861 }
12862
12863 self.handle_input(text, cx);
12864 }
12865
12866 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12867 let Some(provider) = self.semantics_provider.as_ref() else {
12868 return false;
12869 };
12870
12871 let mut supports = false;
12872 self.buffer().read(cx).for_each_buffer(|buffer| {
12873 supports |= provider.supports_inlay_hints(buffer, cx);
12874 });
12875 supports
12876 }
12877
12878 pub fn focus(&self, cx: &mut WindowContext) {
12879 cx.focus(&self.focus_handle)
12880 }
12881
12882 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12883 self.focus_handle.is_focused(cx)
12884 }
12885
12886 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12887 cx.emit(EditorEvent::Focused);
12888
12889 if let Some(descendant) = self
12890 .last_focused_descendant
12891 .take()
12892 .and_then(|descendant| descendant.upgrade())
12893 {
12894 cx.focus(&descendant);
12895 } else {
12896 if let Some(blame) = self.blame.as_ref() {
12897 blame.update(cx, GitBlame::focus)
12898 }
12899
12900 self.blink_manager.update(cx, BlinkManager::enable);
12901 self.show_cursor_names(cx);
12902 self.buffer.update(cx, |buffer, cx| {
12903 buffer.finalize_last_transaction(cx);
12904 if self.leader_peer_id.is_none() {
12905 buffer.set_active_selections(
12906 &self.selections.disjoint_anchors(),
12907 self.selections.line_mode,
12908 self.cursor_shape,
12909 cx,
12910 );
12911 }
12912 });
12913 }
12914 }
12915
12916 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12917 cx.emit(EditorEvent::FocusedIn)
12918 }
12919
12920 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12921 if event.blurred != self.focus_handle {
12922 self.last_focused_descendant = Some(event.blurred);
12923 }
12924 }
12925
12926 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12927 self.blink_manager.update(cx, BlinkManager::disable);
12928 self.buffer
12929 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12930
12931 if let Some(blame) = self.blame.as_ref() {
12932 blame.update(cx, GitBlame::blur)
12933 }
12934 if !self.hover_state.focused(cx) {
12935 hide_hover(self, cx);
12936 }
12937
12938 self.hide_context_menu(cx);
12939 cx.emit(EditorEvent::Blurred);
12940 cx.notify();
12941 }
12942
12943 pub fn register_action<A: Action>(
12944 &mut self,
12945 listener: impl Fn(&A, &mut WindowContext) + 'static,
12946 ) -> Subscription {
12947 let id = self.next_editor_action_id.post_inc();
12948 let listener = Arc::new(listener);
12949 self.editor_actions.borrow_mut().insert(
12950 id,
12951 Box::new(move |cx| {
12952 let cx = cx.window_context();
12953 let listener = listener.clone();
12954 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12955 let action = action.downcast_ref().unwrap();
12956 if phase == DispatchPhase::Bubble {
12957 listener(action, cx)
12958 }
12959 })
12960 }),
12961 );
12962
12963 let editor_actions = self.editor_actions.clone();
12964 Subscription::new(move || {
12965 editor_actions.borrow_mut().remove(&id);
12966 })
12967 }
12968
12969 pub fn file_header_size(&self) -> u32 {
12970 FILE_HEADER_HEIGHT
12971 }
12972
12973 pub fn revert(
12974 &mut self,
12975 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12976 cx: &mut ViewContext<Self>,
12977 ) {
12978 self.buffer().update(cx, |multi_buffer, cx| {
12979 for (buffer_id, changes) in revert_changes {
12980 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12981 buffer.update(cx, |buffer, cx| {
12982 buffer.edit(
12983 changes.into_iter().map(|(range, text)| {
12984 (range, text.to_string().map(Arc::<str>::from))
12985 }),
12986 None,
12987 cx,
12988 );
12989 });
12990 }
12991 }
12992 });
12993 self.change_selections(None, cx, |selections| selections.refresh());
12994 }
12995
12996 pub fn to_pixel_point(
12997 &mut self,
12998 source: multi_buffer::Anchor,
12999 editor_snapshot: &EditorSnapshot,
13000 cx: &mut ViewContext<Self>,
13001 ) -> Option<gpui::Point<Pixels>> {
13002 let source_point = source.to_display_point(editor_snapshot);
13003 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13004 }
13005
13006 pub fn display_to_pixel_point(
13007 &self,
13008 source: DisplayPoint,
13009 editor_snapshot: &EditorSnapshot,
13010 cx: &WindowContext,
13011 ) -> Option<gpui::Point<Pixels>> {
13012 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13013 let text_layout_details = self.text_layout_details(cx);
13014 let scroll_top = text_layout_details
13015 .scroll_anchor
13016 .scroll_position(editor_snapshot)
13017 .y;
13018
13019 if source.row().as_f32() < scroll_top.floor() {
13020 return None;
13021 }
13022 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13023 let source_y = line_height * (source.row().as_f32() - scroll_top);
13024 Some(gpui::Point::new(source_x, source_y))
13025 }
13026
13027 pub fn has_active_completions_menu(&self) -> bool {
13028 self.context_menu.borrow().as_ref().map_or(false, |menu| {
13029 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
13030 })
13031 }
13032
13033 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13034 self.addons
13035 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13036 }
13037
13038 pub fn unregister_addon<T: Addon>(&mut self) {
13039 self.addons.remove(&std::any::TypeId::of::<T>());
13040 }
13041
13042 pub fn addon<T: Addon>(&self) -> Option<&T> {
13043 let type_id = std::any::TypeId::of::<T>();
13044 self.addons
13045 .get(&type_id)
13046 .and_then(|item| item.to_any().downcast_ref::<T>())
13047 }
13048
13049 pub fn add_change_set(
13050 &mut self,
13051 change_set: Model<BufferChangeSet>,
13052 cx: &mut ViewContext<Self>,
13053 ) {
13054 self.diff_map.add_change_set(change_set, cx);
13055 }
13056
13057 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
13058 let text_layout_details = self.text_layout_details(cx);
13059 let style = &text_layout_details.editor_style;
13060 let font_id = cx.text_system().resolve_font(&style.text.font());
13061 let font_size = style.text.font_size.to_pixels(cx.rem_size());
13062 let line_height = style.text.line_height_in_pixels(cx.rem_size());
13063
13064 let em_width = cx
13065 .text_system()
13066 .typographic_bounds(font_id, font_size, 'm')
13067 .unwrap()
13068 .size
13069 .width;
13070
13071 gpui::Point::new(em_width, line_height)
13072 }
13073}
13074
13075fn get_unstaged_changes_for_buffers(
13076 project: &Model<Project>,
13077 buffers: impl IntoIterator<Item = Model<Buffer>>,
13078 cx: &mut ViewContext<Editor>,
13079) {
13080 let mut tasks = Vec::new();
13081 project.update(cx, |project, cx| {
13082 for buffer in buffers {
13083 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
13084 }
13085 });
13086 cx.spawn(|this, mut cx| async move {
13087 let change_sets = futures::future::join_all(tasks).await;
13088 this.update(&mut cx, |this, cx| {
13089 for change_set in change_sets {
13090 if let Some(change_set) = change_set.log_err() {
13091 this.diff_map.add_change_set(change_set, cx);
13092 }
13093 }
13094 })
13095 .ok();
13096 })
13097 .detach();
13098}
13099
13100fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13101 let tab_size = tab_size.get() as usize;
13102 let mut width = offset;
13103
13104 for ch in text.chars() {
13105 width += if ch == '\t' {
13106 tab_size - (width % tab_size)
13107 } else {
13108 1
13109 };
13110 }
13111
13112 width - offset
13113}
13114
13115#[cfg(test)]
13116mod tests {
13117 use super::*;
13118
13119 #[test]
13120 fn test_string_size_with_expanded_tabs() {
13121 let nz = |val| NonZeroU32::new(val).unwrap();
13122 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13123 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13124 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13125 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13126 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13127 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13128 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13129 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13130 }
13131}
13132
13133/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13134struct WordBreakingTokenizer<'a> {
13135 input: &'a str,
13136}
13137
13138impl<'a> WordBreakingTokenizer<'a> {
13139 fn new(input: &'a str) -> Self {
13140 Self { input }
13141 }
13142}
13143
13144fn is_char_ideographic(ch: char) -> bool {
13145 use unicode_script::Script::*;
13146 use unicode_script::UnicodeScript;
13147 matches!(ch.script(), Han | Tangut | Yi)
13148}
13149
13150fn is_grapheme_ideographic(text: &str) -> bool {
13151 text.chars().any(is_char_ideographic)
13152}
13153
13154fn is_grapheme_whitespace(text: &str) -> bool {
13155 text.chars().any(|x| x.is_whitespace())
13156}
13157
13158fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13159 text.chars().next().map_or(false, |ch| {
13160 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13161 })
13162}
13163
13164#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13165struct WordBreakToken<'a> {
13166 token: &'a str,
13167 grapheme_len: usize,
13168 is_whitespace: bool,
13169}
13170
13171impl<'a> Iterator for WordBreakingTokenizer<'a> {
13172 /// Yields a span, the count of graphemes in the token, and whether it was
13173 /// whitespace. Note that it also breaks at word boundaries.
13174 type Item = WordBreakToken<'a>;
13175
13176 fn next(&mut self) -> Option<Self::Item> {
13177 use unicode_segmentation::UnicodeSegmentation;
13178 if self.input.is_empty() {
13179 return None;
13180 }
13181
13182 let mut iter = self.input.graphemes(true).peekable();
13183 let mut offset = 0;
13184 let mut graphemes = 0;
13185 if let Some(first_grapheme) = iter.next() {
13186 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13187 offset += first_grapheme.len();
13188 graphemes += 1;
13189 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13190 if let Some(grapheme) = iter.peek().copied() {
13191 if should_stay_with_preceding_ideograph(grapheme) {
13192 offset += grapheme.len();
13193 graphemes += 1;
13194 }
13195 }
13196 } else {
13197 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13198 let mut next_word_bound = words.peek().copied();
13199 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13200 next_word_bound = words.next();
13201 }
13202 while let Some(grapheme) = iter.peek().copied() {
13203 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13204 break;
13205 };
13206 if is_grapheme_whitespace(grapheme) != is_whitespace {
13207 break;
13208 };
13209 offset += grapheme.len();
13210 graphemes += 1;
13211 iter.next();
13212 }
13213 }
13214 let token = &self.input[..offset];
13215 self.input = &self.input[offset..];
13216 if is_whitespace {
13217 Some(WordBreakToken {
13218 token: " ",
13219 grapheme_len: 1,
13220 is_whitespace: true,
13221 })
13222 } else {
13223 Some(WordBreakToken {
13224 token,
13225 grapheme_len: graphemes,
13226 is_whitespace: false,
13227 })
13228 }
13229 } else {
13230 None
13231 }
13232 }
13233}
13234
13235#[test]
13236fn test_word_breaking_tokenizer() {
13237 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13238 ("", &[]),
13239 (" ", &[(" ", 1, true)]),
13240 ("Ʒ", &[("Ʒ", 1, false)]),
13241 ("Ǽ", &[("Ǽ", 1, false)]),
13242 ("⋑", &[("⋑", 1, false)]),
13243 ("⋑⋑", &[("⋑⋑", 2, false)]),
13244 (
13245 "原理，进而",
13246 &[
13247 ("原", 1, false),
13248 ("理，", 2, false),
13249 ("进", 1, false),
13250 ("而", 1, false),
13251 ],
13252 ),
13253 (
13254 "hello world",
13255 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13256 ),
13257 (
13258 "hello, world",
13259 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13260 ),
13261 (
13262 " hello world",
13263 &[
13264 (" ", 1, true),
13265 ("hello", 5, false),
13266 (" ", 1, true),
13267 ("world", 5, false),
13268 ],
13269 ),
13270 (
13271 "这是什么 \n 钢笔",
13272 &[
13273 ("这", 1, false),
13274 ("是", 1, false),
13275 ("什", 1, false),
13276 ("么", 1, false),
13277 (" ", 1, true),
13278 ("钢", 1, false),
13279 ("笔", 1, false),
13280 ],
13281 ),
13282 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13283 ];
13284
13285 for (input, result) in tests {
13286 assert_eq!(
13287 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13288 result
13289 .iter()
13290 .copied()
13291 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13292 token,
13293 grapheme_len,
13294 is_whitespace,
13295 })
13296 .collect::<Vec<_>>()
13297 );
13298 }
13299}
13300
13301fn wrap_with_prefix(
13302 line_prefix: String,
13303 unwrapped_text: String,
13304 wrap_column: usize,
13305 tab_size: NonZeroU32,
13306) -> String {
13307 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13308 let mut wrapped_text = String::new();
13309 let mut current_line = line_prefix.clone();
13310
13311 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13312 let mut current_line_len = line_prefix_len;
13313 for WordBreakToken {
13314 token,
13315 grapheme_len,
13316 is_whitespace,
13317 } in tokenizer
13318 {
13319 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13320 wrapped_text.push_str(current_line.trim_end());
13321 wrapped_text.push('\n');
13322 current_line.truncate(line_prefix.len());
13323 current_line_len = line_prefix_len;
13324 if !is_whitespace {
13325 current_line.push_str(token);
13326 current_line_len += grapheme_len;
13327 }
13328 } else if !is_whitespace {
13329 current_line.push_str(token);
13330 current_line_len += grapheme_len;
13331 } else if current_line_len != line_prefix_len {
13332 current_line.push(' ');
13333 current_line_len += 1;
13334 }
13335 }
13336
13337 if !current_line.is_empty() {
13338 wrapped_text.push_str(¤t_line);
13339 }
13340 wrapped_text
13341}
13342
13343#[test]
13344fn test_wrap_with_prefix() {
13345 assert_eq!(
13346 wrap_with_prefix(
13347 "# ".to_string(),
13348 "abcdefg".to_string(),
13349 4,
13350 NonZeroU32::new(4).unwrap()
13351 ),
13352 "# abcdefg"
13353 );
13354 assert_eq!(
13355 wrap_with_prefix(
13356 "".to_string(),
13357 "\thello world".to_string(),
13358 8,
13359 NonZeroU32::new(4).unwrap()
13360 ),
13361 "hello\nworld"
13362 );
13363 assert_eq!(
13364 wrap_with_prefix(
13365 "// ".to_string(),
13366 "xx \nyy zz aa bb cc".to_string(),
13367 12,
13368 NonZeroU32::new(4).unwrap()
13369 ),
13370 "// xx yy zz\n// aa bb cc"
13371 );
13372 assert_eq!(
13373 wrap_with_prefix(
13374 String::new(),
13375 "这是什么 \n 钢笔".to_string(),
13376 3,
13377 NonZeroU32::new(4).unwrap()
13378 ),
13379 "这是什\n么 钢\n笔"
13380 );
13381}
13382
13383fn hunks_for_selections(
13384 snapshot: &EditorSnapshot,
13385 selections: &[Selection<Point>],
13386) -> Vec<MultiBufferDiffHunk> {
13387 hunks_for_ranges(
13388 selections.iter().map(|selection| selection.range()),
13389 snapshot,
13390 )
13391}
13392
13393pub fn hunks_for_ranges(
13394 ranges: impl Iterator<Item = Range<Point>>,
13395 snapshot: &EditorSnapshot,
13396) -> Vec<MultiBufferDiffHunk> {
13397 let mut hunks = Vec::new();
13398 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13399 HashMap::default();
13400 for query_range in ranges {
13401 let query_rows =
13402 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
13403 for hunk in snapshot.diff_map.diff_hunks_in_range(
13404 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
13405 &snapshot.buffer_snapshot,
13406 ) {
13407 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13408 // when the caret is just above or just below the deleted hunk.
13409 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13410 let related_to_selection = if allow_adjacent {
13411 hunk.row_range.overlaps(&query_rows)
13412 || hunk.row_range.start == query_rows.end
13413 || hunk.row_range.end == query_rows.start
13414 } else {
13415 hunk.row_range.overlaps(&query_rows)
13416 };
13417 if related_to_selection {
13418 if !processed_buffer_rows
13419 .entry(hunk.buffer_id)
13420 .or_default()
13421 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13422 {
13423 continue;
13424 }
13425 hunks.push(hunk);
13426 }
13427 }
13428 }
13429
13430 hunks
13431}
13432
13433pub trait CollaborationHub {
13434 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13435 fn user_participant_indices<'a>(
13436 &self,
13437 cx: &'a AppContext,
13438 ) -> &'a HashMap<u64, ParticipantIndex>;
13439 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13440}
13441
13442impl CollaborationHub for Model<Project> {
13443 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13444 self.read(cx).collaborators()
13445 }
13446
13447 fn user_participant_indices<'a>(
13448 &self,
13449 cx: &'a AppContext,
13450 ) -> &'a HashMap<u64, ParticipantIndex> {
13451 self.read(cx).user_store().read(cx).participant_indices()
13452 }
13453
13454 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13455 let this = self.read(cx);
13456 let user_ids = this.collaborators().values().map(|c| c.user_id);
13457 this.user_store().read_with(cx, |user_store, cx| {
13458 user_store.participant_names(user_ids, cx)
13459 })
13460 }
13461}
13462
13463pub trait SemanticsProvider {
13464 fn hover(
13465 &self,
13466 buffer: &Model<Buffer>,
13467 position: text::Anchor,
13468 cx: &mut AppContext,
13469 ) -> Option<Task<Vec<project::Hover>>>;
13470
13471 fn inlay_hints(
13472 &self,
13473 buffer_handle: Model<Buffer>,
13474 range: Range<text::Anchor>,
13475 cx: &mut AppContext,
13476 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13477
13478 fn resolve_inlay_hint(
13479 &self,
13480 hint: InlayHint,
13481 buffer_handle: Model<Buffer>,
13482 server_id: LanguageServerId,
13483 cx: &mut AppContext,
13484 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13485
13486 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13487
13488 fn document_highlights(
13489 &self,
13490 buffer: &Model<Buffer>,
13491 position: text::Anchor,
13492 cx: &mut AppContext,
13493 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13494
13495 fn definitions(
13496 &self,
13497 buffer: &Model<Buffer>,
13498 position: text::Anchor,
13499 kind: GotoDefinitionKind,
13500 cx: &mut AppContext,
13501 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13502
13503 fn range_for_rename(
13504 &self,
13505 buffer: &Model<Buffer>,
13506 position: text::Anchor,
13507 cx: &mut AppContext,
13508 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13509
13510 fn perform_rename(
13511 &self,
13512 buffer: &Model<Buffer>,
13513 position: text::Anchor,
13514 new_name: String,
13515 cx: &mut AppContext,
13516 ) -> Option<Task<Result<ProjectTransaction>>>;
13517}
13518
13519pub trait CompletionProvider {
13520 fn completions(
13521 &self,
13522 buffer: &Model<Buffer>,
13523 buffer_position: text::Anchor,
13524 trigger: CompletionContext,
13525 cx: &mut ViewContext<Editor>,
13526 ) -> Task<Result<Vec<Completion>>>;
13527
13528 fn resolve_completions(
13529 &self,
13530 buffer: Model<Buffer>,
13531 completion_indices: Vec<usize>,
13532 completions: Rc<RefCell<Box<[Completion]>>>,
13533 cx: &mut ViewContext<Editor>,
13534 ) -> Task<Result<bool>>;
13535
13536 fn apply_additional_edits_for_completion(
13537 &self,
13538 _buffer: Model<Buffer>,
13539 _completions: Rc<RefCell<Box<[Completion]>>>,
13540 _completion_index: usize,
13541 _push_to_history: bool,
13542 _cx: &mut ViewContext<Editor>,
13543 ) -> Task<Result<Option<language::Transaction>>> {
13544 Task::ready(Ok(None))
13545 }
13546
13547 fn is_completion_trigger(
13548 &self,
13549 buffer: &Model<Buffer>,
13550 position: language::Anchor,
13551 text: &str,
13552 trigger_in_words: bool,
13553 cx: &mut ViewContext<Editor>,
13554 ) -> bool;
13555
13556 fn sort_completions(&self) -> bool {
13557 true
13558 }
13559}
13560
13561pub trait CodeActionProvider {
13562 fn code_actions(
13563 &self,
13564 buffer: &Model<Buffer>,
13565 range: Range<text::Anchor>,
13566 cx: &mut WindowContext,
13567 ) -> Task<Result<Vec<CodeAction>>>;
13568
13569 fn apply_code_action(
13570 &self,
13571 buffer_handle: Model<Buffer>,
13572 action: CodeAction,
13573 excerpt_id: ExcerptId,
13574 push_to_history: bool,
13575 cx: &mut WindowContext,
13576 ) -> Task<Result<ProjectTransaction>>;
13577}
13578
13579impl CodeActionProvider for Model<Project> {
13580 fn code_actions(
13581 &self,
13582 buffer: &Model<Buffer>,
13583 range: Range<text::Anchor>,
13584 cx: &mut WindowContext,
13585 ) -> Task<Result<Vec<CodeAction>>> {
13586 self.update(cx, |project, cx| {
13587 project.code_actions(buffer, range, None, cx)
13588 })
13589 }
13590
13591 fn apply_code_action(
13592 &self,
13593 buffer_handle: Model<Buffer>,
13594 action: CodeAction,
13595 _excerpt_id: ExcerptId,
13596 push_to_history: bool,
13597 cx: &mut WindowContext,
13598 ) -> Task<Result<ProjectTransaction>> {
13599 self.update(cx, |project, cx| {
13600 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13601 })
13602 }
13603}
13604
13605fn snippet_completions(
13606 project: &Project,
13607 buffer: &Model<Buffer>,
13608 buffer_position: text::Anchor,
13609 cx: &mut AppContext,
13610) -> Task<Result<Vec<Completion>>> {
13611 let language = buffer.read(cx).language_at(buffer_position);
13612 let language_name = language.as_ref().map(|language| language.lsp_id());
13613 let snippet_store = project.snippets().read(cx);
13614 let snippets = snippet_store.snippets_for(language_name, cx);
13615
13616 if snippets.is_empty() {
13617 return Task::ready(Ok(vec![]));
13618 }
13619 let snapshot = buffer.read(cx).text_snapshot();
13620 let chars: String = snapshot
13621 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13622 .collect();
13623
13624 let scope = language.map(|language| language.default_scope());
13625 let executor = cx.background_executor().clone();
13626
13627 cx.background_executor().spawn(async move {
13628 let classifier = CharClassifier::new(scope).for_completion(true);
13629 let mut last_word = chars
13630 .chars()
13631 .take_while(|c| classifier.is_word(*c))
13632 .collect::<String>();
13633 last_word = last_word.chars().rev().collect();
13634
13635 if last_word.is_empty() {
13636 return Ok(vec![]);
13637 }
13638
13639 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13640 let to_lsp = |point: &text::Anchor| {
13641 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13642 point_to_lsp(end)
13643 };
13644 let lsp_end = to_lsp(&buffer_position);
13645
13646 let candidates = snippets
13647 .iter()
13648 .enumerate()
13649 .flat_map(|(ix, snippet)| {
13650 snippet
13651 .prefix
13652 .iter()
13653 .map(move |prefix| StringMatchCandidate::new(ix, &prefix))
13654 })
13655 .collect::<Vec<StringMatchCandidate>>();
13656
13657 let mut matches = fuzzy::match_strings(
13658 &candidates,
13659 &last_word,
13660 last_word.chars().any(|c| c.is_uppercase()),
13661 100,
13662 &Default::default(),
13663 executor,
13664 )
13665 .await;
13666
13667 // Remove all candidates where the query's start does not match the start of any word in the candidate
13668 if let Some(query_start) = last_word.chars().next() {
13669 matches.retain(|string_match| {
13670 split_words(&string_match.string).any(|word| {
13671 // Check that the first codepoint of the word as lowercase matches the first
13672 // codepoint of the query as lowercase
13673 word.chars()
13674 .flat_map(|codepoint| codepoint.to_lowercase())
13675 .zip(query_start.to_lowercase())
13676 .all(|(word_cp, query_cp)| word_cp == query_cp)
13677 })
13678 });
13679 }
13680
13681 let matched_strings = matches
13682 .into_iter()
13683 .map(|m| m.string)
13684 .collect::<HashSet<_>>();
13685
13686 let result: Vec<Completion> = snippets
13687 .into_iter()
13688 .filter_map(|snippet| {
13689 let matching_prefix = snippet
13690 .prefix
13691 .iter()
13692 .find(|prefix| matched_strings.contains(*prefix))?;
13693 let start = as_offset - last_word.len();
13694 let start = snapshot.anchor_before(start);
13695 let range = start..buffer_position;
13696 let lsp_start = to_lsp(&start);
13697 let lsp_range = lsp::Range {
13698 start: lsp_start,
13699 end: lsp_end,
13700 };
13701 Some(Completion {
13702 old_range: range,
13703 new_text: snippet.body.clone(),
13704 resolved: false,
13705 label: CodeLabel {
13706 text: matching_prefix.clone(),
13707 runs: vec![],
13708 filter_range: 0..matching_prefix.len(),
13709 },
13710 server_id: LanguageServerId(usize::MAX),
13711 documentation: snippet.description.clone().map(Documentation::SingleLine),
13712 lsp_completion: lsp::CompletionItem {
13713 label: snippet.prefix.first().unwrap().clone(),
13714 kind: Some(CompletionItemKind::SNIPPET),
13715 label_details: snippet.description.as_ref().map(|description| {
13716 lsp::CompletionItemLabelDetails {
13717 detail: Some(description.clone()),
13718 description: None,
13719 }
13720 }),
13721 insert_text_format: Some(InsertTextFormat::SNIPPET),
13722 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13723 lsp::InsertReplaceEdit {
13724 new_text: snippet.body.clone(),
13725 insert: lsp_range,
13726 replace: lsp_range,
13727 },
13728 )),
13729 filter_text: Some(snippet.body.clone()),
13730 sort_text: Some(char::MAX.to_string()),
13731 ..Default::default()
13732 },
13733 confirm: None,
13734 })
13735 })
13736 .collect();
13737
13738 Ok(result)
13739 })
13740}
13741
13742impl CompletionProvider for Model<Project> {
13743 fn completions(
13744 &self,
13745 buffer: &Model<Buffer>,
13746 buffer_position: text::Anchor,
13747 options: CompletionContext,
13748 cx: &mut ViewContext<Editor>,
13749 ) -> Task<Result<Vec<Completion>>> {
13750 self.update(cx, |project, cx| {
13751 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13752 let project_completions = project.completions(buffer, buffer_position, options, cx);
13753 cx.background_executor().spawn(async move {
13754 let mut completions = project_completions.await?;
13755 let snippets_completions = snippets.await?;
13756 completions.extend(snippets_completions);
13757 Ok(completions)
13758 })
13759 })
13760 }
13761
13762 fn resolve_completions(
13763 &self,
13764 buffer: Model<Buffer>,
13765 completion_indices: Vec<usize>,
13766 completions: Rc<RefCell<Box<[Completion]>>>,
13767 cx: &mut ViewContext<Editor>,
13768 ) -> Task<Result<bool>> {
13769 self.update(cx, |project, cx| {
13770 project.lsp_store().update(cx, |lsp_store, cx| {
13771 lsp_store.resolve_completions(buffer, completion_indices, completions, cx)
13772 })
13773 })
13774 }
13775
13776 fn apply_additional_edits_for_completion(
13777 &self,
13778 buffer: Model<Buffer>,
13779 completions: Rc<RefCell<Box<[Completion]>>>,
13780 completion_index: usize,
13781 push_to_history: bool,
13782 cx: &mut ViewContext<Editor>,
13783 ) -> Task<Result<Option<language::Transaction>>> {
13784 self.update(cx, |project, cx| {
13785 project.lsp_store().update(cx, |lsp_store, cx| {
13786 lsp_store.apply_additional_edits_for_completion(
13787 buffer,
13788 completions,
13789 completion_index,
13790 push_to_history,
13791 cx,
13792 )
13793 })
13794 })
13795 }
13796
13797 fn is_completion_trigger(
13798 &self,
13799 buffer: &Model<Buffer>,
13800 position: language::Anchor,
13801 text: &str,
13802 trigger_in_words: bool,
13803 cx: &mut ViewContext<Editor>,
13804 ) -> bool {
13805 let mut chars = text.chars();
13806 let char = if let Some(char) = chars.next() {
13807 char
13808 } else {
13809 return false;
13810 };
13811 if chars.next().is_some() {
13812 return false;
13813 }
13814
13815 let buffer = buffer.read(cx);
13816 let snapshot = buffer.snapshot();
13817 if !snapshot.settings_at(position, cx).show_completions_on_input {
13818 return false;
13819 }
13820 let classifier = snapshot.char_classifier_at(position).for_completion(true);
13821 if trigger_in_words && classifier.is_word(char) {
13822 return true;
13823 }
13824
13825 buffer.completion_triggers().contains(text)
13826 }
13827}
13828
13829impl SemanticsProvider for Model<Project> {
13830 fn hover(
13831 &self,
13832 buffer: &Model<Buffer>,
13833 position: text::Anchor,
13834 cx: &mut AppContext,
13835 ) -> Option<Task<Vec<project::Hover>>> {
13836 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13837 }
13838
13839 fn document_highlights(
13840 &self,
13841 buffer: &Model<Buffer>,
13842 position: text::Anchor,
13843 cx: &mut AppContext,
13844 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13845 Some(self.update(cx, |project, cx| {
13846 project.document_highlights(buffer, position, cx)
13847 }))
13848 }
13849
13850 fn definitions(
13851 &self,
13852 buffer: &Model<Buffer>,
13853 position: text::Anchor,
13854 kind: GotoDefinitionKind,
13855 cx: &mut AppContext,
13856 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13857 Some(self.update(cx, |project, cx| match kind {
13858 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13859 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13860 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13861 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13862 }))
13863 }
13864
13865 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13866 // TODO: make this work for remote projects
13867 self.read(cx)
13868 .language_servers_for_local_buffer(buffer.read(cx), cx)
13869 .any(
13870 |(_, server)| match server.capabilities().inlay_hint_provider {
13871 Some(lsp::OneOf::Left(enabled)) => enabled,
13872 Some(lsp::OneOf::Right(_)) => true,
13873 None => false,
13874 },
13875 )
13876 }
13877
13878 fn inlay_hints(
13879 &self,
13880 buffer_handle: Model<Buffer>,
13881 range: Range<text::Anchor>,
13882 cx: &mut AppContext,
13883 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13884 Some(self.update(cx, |project, cx| {
13885 project.inlay_hints(buffer_handle, range, cx)
13886 }))
13887 }
13888
13889 fn resolve_inlay_hint(
13890 &self,
13891 hint: InlayHint,
13892 buffer_handle: Model<Buffer>,
13893 server_id: LanguageServerId,
13894 cx: &mut AppContext,
13895 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13896 Some(self.update(cx, |project, cx| {
13897 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13898 }))
13899 }
13900
13901 fn range_for_rename(
13902 &self,
13903 buffer: &Model<Buffer>,
13904 position: text::Anchor,
13905 cx: &mut AppContext,
13906 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13907 Some(self.update(cx, |project, cx| {
13908 project.prepare_rename(buffer.clone(), position, cx)
13909 }))
13910 }
13911
13912 fn perform_rename(
13913 &self,
13914 buffer: &Model<Buffer>,
13915 position: text::Anchor,
13916 new_name: String,
13917 cx: &mut AppContext,
13918 ) -> Option<Task<Result<ProjectTransaction>>> {
13919 Some(self.update(cx, |project, cx| {
13920 project.perform_rename(buffer.clone(), position, new_name, cx)
13921 }))
13922 }
13923}
13924
13925fn inlay_hint_settings(
13926 location: Anchor,
13927 snapshot: &MultiBufferSnapshot,
13928 cx: &mut ViewContext<Editor>,
13929) -> InlayHintSettings {
13930 let file = snapshot.file_at(location);
13931 let language = snapshot.language_at(location).map(|l| l.name());
13932 language_settings(language, file, cx).inlay_hints
13933}
13934
13935fn consume_contiguous_rows(
13936 contiguous_row_selections: &mut Vec<Selection<Point>>,
13937 selection: &Selection<Point>,
13938 display_map: &DisplaySnapshot,
13939 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
13940) -> (MultiBufferRow, MultiBufferRow) {
13941 contiguous_row_selections.push(selection.clone());
13942 let start_row = MultiBufferRow(selection.start.row);
13943 let mut end_row = ending_row(selection, display_map);
13944
13945 while let Some(next_selection) = selections.peek() {
13946 if next_selection.start.row <= end_row.0 {
13947 end_row = ending_row(next_selection, display_map);
13948 contiguous_row_selections.push(selections.next().unwrap().clone());
13949 } else {
13950 break;
13951 }
13952 }
13953 (start_row, end_row)
13954}
13955
13956fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13957 if next_selection.end.column > 0 || next_selection.is_empty() {
13958 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13959 } else {
13960 MultiBufferRow(next_selection.end.row)
13961 }
13962}
13963
13964impl EditorSnapshot {
13965 pub fn remote_selections_in_range<'a>(
13966 &'a self,
13967 range: &'a Range<Anchor>,
13968 collaboration_hub: &dyn CollaborationHub,
13969 cx: &'a AppContext,
13970 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13971 let participant_names = collaboration_hub.user_names(cx);
13972 let participant_indices = collaboration_hub.user_participant_indices(cx);
13973 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13974 let collaborators_by_replica_id = collaborators_by_peer_id
13975 .iter()
13976 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13977 .collect::<HashMap<_, _>>();
13978 self.buffer_snapshot
13979 .selections_in_range(range, false)
13980 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13981 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13982 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13983 let user_name = participant_names.get(&collaborator.user_id).cloned();
13984 Some(RemoteSelection {
13985 replica_id,
13986 selection,
13987 cursor_shape,
13988 line_mode,
13989 participant_index,
13990 peer_id: collaborator.peer_id,
13991 user_name,
13992 })
13993 })
13994 }
13995
13996 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13997 self.display_snapshot.buffer_snapshot.language_at(position)
13998 }
13999
14000 pub fn is_focused(&self) -> bool {
14001 self.is_focused
14002 }
14003
14004 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
14005 self.placeholder_text.as_ref()
14006 }
14007
14008 pub fn scroll_position(&self) -> gpui::Point<f32> {
14009 self.scroll_anchor.scroll_position(&self.display_snapshot)
14010 }
14011
14012 fn gutter_dimensions(
14013 &self,
14014 font_id: FontId,
14015 font_size: Pixels,
14016 em_width: Pixels,
14017 em_advance: Pixels,
14018 max_line_number_width: Pixels,
14019 cx: &AppContext,
14020 ) -> GutterDimensions {
14021 if !self.show_gutter {
14022 return GutterDimensions::default();
14023 }
14024 let descent = cx.text_system().descent(font_id, font_size);
14025
14026 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
14027 matches!(
14028 ProjectSettings::get_global(cx).git.git_gutter,
14029 Some(GitGutterSetting::TrackedFiles)
14030 )
14031 });
14032 let gutter_settings = EditorSettings::get_global(cx).gutter;
14033 let show_line_numbers = self
14034 .show_line_numbers
14035 .unwrap_or(gutter_settings.line_numbers);
14036 let line_gutter_width = if show_line_numbers {
14037 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
14038 let min_width_for_number_on_gutter = em_advance * 4.0;
14039 max_line_number_width.max(min_width_for_number_on_gutter)
14040 } else {
14041 0.0.into()
14042 };
14043
14044 let show_code_actions = self
14045 .show_code_actions
14046 .unwrap_or(gutter_settings.code_actions);
14047
14048 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
14049
14050 let git_blame_entries_width =
14051 self.git_blame_gutter_max_author_length
14052 .map(|max_author_length| {
14053 // Length of the author name, but also space for the commit hash,
14054 // the spacing and the timestamp.
14055 let max_char_count = max_author_length
14056 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
14057 + 7 // length of commit sha
14058 + 14 // length of max relative timestamp ("60 minutes ago")
14059 + 4; // gaps and margins
14060
14061 em_advance * max_char_count
14062 });
14063
14064 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
14065 left_padding += if show_code_actions || show_runnables {
14066 em_width * 3.0
14067 } else if show_git_gutter && show_line_numbers {
14068 em_width * 2.0
14069 } else if show_git_gutter || show_line_numbers {
14070 em_width
14071 } else {
14072 px(0.)
14073 };
14074
14075 let right_padding = if gutter_settings.folds && show_line_numbers {
14076 em_width * 4.0
14077 } else if gutter_settings.folds {
14078 em_width * 3.0
14079 } else if show_line_numbers {
14080 em_width
14081 } else {
14082 px(0.)
14083 };
14084
14085 GutterDimensions {
14086 left_padding,
14087 right_padding,
14088 width: line_gutter_width + left_padding + right_padding,
14089 margin: -descent,
14090 git_blame_entries_width,
14091 }
14092 }
14093
14094 pub fn render_crease_toggle(
14095 &self,
14096 buffer_row: MultiBufferRow,
14097 row_contains_cursor: bool,
14098 editor: View<Editor>,
14099 cx: &mut WindowContext,
14100 ) -> Option<AnyElement> {
14101 let folded = self.is_line_folded(buffer_row);
14102 let mut is_foldable = false;
14103
14104 if let Some(crease) = self
14105 .crease_snapshot
14106 .query_row(buffer_row, &self.buffer_snapshot)
14107 {
14108 is_foldable = true;
14109 match crease {
14110 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
14111 if let Some(render_toggle) = render_toggle {
14112 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14113 if folded {
14114 editor.update(cx, |editor, cx| {
14115 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14116 });
14117 } else {
14118 editor.update(cx, |editor, cx| {
14119 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14120 });
14121 }
14122 });
14123 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14124 }
14125 }
14126 }
14127 }
14128
14129 is_foldable |= self.starts_indent(buffer_row);
14130
14131 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14132 Some(
14133 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14134 .toggle_state(folded)
14135 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14136 if folded {
14137 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14138 } else {
14139 this.fold_at(&FoldAt { buffer_row }, cx);
14140 }
14141 }))
14142 .into_any_element(),
14143 )
14144 } else {
14145 None
14146 }
14147 }
14148
14149 pub fn render_crease_trailer(
14150 &self,
14151 buffer_row: MultiBufferRow,
14152 cx: &mut WindowContext,
14153 ) -> Option<AnyElement> {
14154 let folded = self.is_line_folded(buffer_row);
14155 if let Crease::Inline { render_trailer, .. } = self
14156 .crease_snapshot
14157 .query_row(buffer_row, &self.buffer_snapshot)?
14158 {
14159 let render_trailer = render_trailer.as_ref()?;
14160 Some(render_trailer(buffer_row, folded, cx))
14161 } else {
14162 None
14163 }
14164 }
14165}
14166
14167impl Deref for EditorSnapshot {
14168 type Target = DisplaySnapshot;
14169
14170 fn deref(&self) -> &Self::Target {
14171 &self.display_snapshot
14172 }
14173}
14174
14175#[derive(Clone, Debug, PartialEq, Eq)]
14176pub enum EditorEvent {
14177 InputIgnored {
14178 text: Arc<str>,
14179 },
14180 InputHandled {
14181 utf16_range_to_replace: Option<Range<isize>>,
14182 text: Arc<str>,
14183 },
14184 ExcerptsAdded {
14185 buffer: Model<Buffer>,
14186 predecessor: ExcerptId,
14187 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14188 },
14189 ExcerptsRemoved {
14190 ids: Vec<ExcerptId>,
14191 },
14192 BufferFoldToggled {
14193 ids: Vec<ExcerptId>,
14194 folded: bool,
14195 },
14196 ExcerptsEdited {
14197 ids: Vec<ExcerptId>,
14198 },
14199 ExcerptsExpanded {
14200 ids: Vec<ExcerptId>,
14201 },
14202 BufferEdited,
14203 Edited {
14204 transaction_id: clock::Lamport,
14205 },
14206 Reparsed(BufferId),
14207 Focused,
14208 FocusedIn,
14209 Blurred,
14210 DirtyChanged,
14211 Saved,
14212 TitleChanged,
14213 DiffBaseChanged,
14214 SelectionsChanged {
14215 local: bool,
14216 },
14217 ScrollPositionChanged {
14218 local: bool,
14219 autoscroll: bool,
14220 },
14221 Closed,
14222 TransactionUndone {
14223 transaction_id: clock::Lamport,
14224 },
14225 TransactionBegun {
14226 transaction_id: clock::Lamport,
14227 },
14228 Reloaded,
14229 CursorShapeChanged,
14230}
14231
14232impl EventEmitter<EditorEvent> for Editor {}
14233
14234impl FocusableView for Editor {
14235 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14236 self.focus_handle.clone()
14237 }
14238}
14239
14240impl Render for Editor {
14241 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14242 let settings = ThemeSettings::get_global(cx);
14243
14244 let mut text_style = match self.mode {
14245 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14246 color: cx.theme().colors().editor_foreground,
14247 font_family: settings.ui_font.family.clone(),
14248 font_features: settings.ui_font.features.clone(),
14249 font_fallbacks: settings.ui_font.fallbacks.clone(),
14250 font_size: rems(0.875).into(),
14251 font_weight: settings.ui_font.weight,
14252 line_height: relative(settings.buffer_line_height.value()),
14253 ..Default::default()
14254 },
14255 EditorMode::Full => TextStyle {
14256 color: cx.theme().colors().editor_foreground,
14257 font_family: settings.buffer_font.family.clone(),
14258 font_features: settings.buffer_font.features.clone(),
14259 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14260 font_size: settings.buffer_font_size(cx).into(),
14261 font_weight: settings.buffer_font.weight,
14262 line_height: relative(settings.buffer_line_height.value()),
14263 ..Default::default()
14264 },
14265 };
14266 if let Some(text_style_refinement) = &self.text_style_refinement {
14267 text_style.refine(text_style_refinement)
14268 }
14269
14270 let background = match self.mode {
14271 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14272 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14273 EditorMode::Full => cx.theme().colors().editor_background,
14274 };
14275
14276 EditorElement::new(
14277 cx.view(),
14278 EditorStyle {
14279 background,
14280 local_player: cx.theme().players().local(),
14281 text: text_style,
14282 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14283 syntax: cx.theme().syntax().clone(),
14284 status: cx.theme().status().clone(),
14285 inlay_hints_style: make_inlay_hints_style(cx),
14286 inline_completion_styles: make_suggestion_styles(cx),
14287 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14288 },
14289 )
14290 }
14291}
14292
14293impl ViewInputHandler for Editor {
14294 fn text_for_range(
14295 &mut self,
14296 range_utf16: Range<usize>,
14297 adjusted_range: &mut Option<Range<usize>>,
14298 cx: &mut ViewContext<Self>,
14299 ) -> Option<String> {
14300 let snapshot = self.buffer.read(cx).read(cx);
14301 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14302 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14303 if (start.0..end.0) != range_utf16 {
14304 adjusted_range.replace(start.0..end.0);
14305 }
14306 Some(snapshot.text_for_range(start..end).collect())
14307 }
14308
14309 fn selected_text_range(
14310 &mut self,
14311 ignore_disabled_input: bool,
14312 cx: &mut ViewContext<Self>,
14313 ) -> Option<UTF16Selection> {
14314 // Prevent the IME menu from appearing when holding down an alphabetic key
14315 // while input is disabled.
14316 if !ignore_disabled_input && !self.input_enabled {
14317 return None;
14318 }
14319
14320 let selection = self.selections.newest::<OffsetUtf16>(cx);
14321 let range = selection.range();
14322
14323 Some(UTF16Selection {
14324 range: range.start.0..range.end.0,
14325 reversed: selection.reversed,
14326 })
14327 }
14328
14329 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14330 let snapshot = self.buffer.read(cx).read(cx);
14331 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14332 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14333 }
14334
14335 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14336 self.clear_highlights::<InputComposition>(cx);
14337 self.ime_transaction.take();
14338 }
14339
14340 fn replace_text_in_range(
14341 &mut self,
14342 range_utf16: Option<Range<usize>>,
14343 text: &str,
14344 cx: &mut ViewContext<Self>,
14345 ) {
14346 if !self.input_enabled {
14347 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14348 return;
14349 }
14350
14351 self.transact(cx, |this, cx| {
14352 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14353 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14354 Some(this.selection_replacement_ranges(range_utf16, cx))
14355 } else {
14356 this.marked_text_ranges(cx)
14357 };
14358
14359 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14360 let newest_selection_id = this.selections.newest_anchor().id;
14361 this.selections
14362 .all::<OffsetUtf16>(cx)
14363 .iter()
14364 .zip(ranges_to_replace.iter())
14365 .find_map(|(selection, range)| {
14366 if selection.id == newest_selection_id {
14367 Some(
14368 (range.start.0 as isize - selection.head().0 as isize)
14369 ..(range.end.0 as isize - selection.head().0 as isize),
14370 )
14371 } else {
14372 None
14373 }
14374 })
14375 });
14376
14377 cx.emit(EditorEvent::InputHandled {
14378 utf16_range_to_replace: range_to_replace,
14379 text: text.into(),
14380 });
14381
14382 if let Some(new_selected_ranges) = new_selected_ranges {
14383 this.change_selections(None, cx, |selections| {
14384 selections.select_ranges(new_selected_ranges)
14385 });
14386 this.backspace(&Default::default(), cx);
14387 }
14388
14389 this.handle_input(text, cx);
14390 });
14391
14392 if let Some(transaction) = self.ime_transaction {
14393 self.buffer.update(cx, |buffer, cx| {
14394 buffer.group_until_transaction(transaction, cx);
14395 });
14396 }
14397
14398 self.unmark_text(cx);
14399 }
14400
14401 fn replace_and_mark_text_in_range(
14402 &mut self,
14403 range_utf16: Option<Range<usize>>,
14404 text: &str,
14405 new_selected_range_utf16: Option<Range<usize>>,
14406 cx: &mut ViewContext<Self>,
14407 ) {
14408 if !self.input_enabled {
14409 return;
14410 }
14411
14412 let transaction = self.transact(cx, |this, cx| {
14413 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14414 let snapshot = this.buffer.read(cx).read(cx);
14415 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14416 for marked_range in &mut marked_ranges {
14417 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14418 marked_range.start.0 += relative_range_utf16.start;
14419 marked_range.start =
14420 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14421 marked_range.end =
14422 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14423 }
14424 }
14425 Some(marked_ranges)
14426 } else 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 None
14431 };
14432
14433 let range_to_replace = ranges_to_replace.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(ranges) = ranges_to_replace {
14457 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14458 }
14459
14460 let marked_ranges = {
14461 let snapshot = this.buffer.read(cx).read(cx);
14462 this.selections
14463 .disjoint_anchors()
14464 .iter()
14465 .map(|selection| {
14466 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14467 })
14468 .collect::<Vec<_>>()
14469 };
14470
14471 if text.is_empty() {
14472 this.unmark_text(cx);
14473 } else {
14474 this.highlight_text::<InputComposition>(
14475 marked_ranges.clone(),
14476 HighlightStyle {
14477 underline: Some(UnderlineStyle {
14478 thickness: px(1.),
14479 color: None,
14480 wavy: false,
14481 }),
14482 ..Default::default()
14483 },
14484 cx,
14485 );
14486 }
14487
14488 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14489 let use_autoclose = this.use_autoclose;
14490 let use_auto_surround = this.use_auto_surround;
14491 this.set_use_autoclose(false);
14492 this.set_use_auto_surround(false);
14493 this.handle_input(text, cx);
14494 this.set_use_autoclose(use_autoclose);
14495 this.set_use_auto_surround(use_auto_surround);
14496
14497 if let Some(new_selected_range) = new_selected_range_utf16 {
14498 let snapshot = this.buffer.read(cx).read(cx);
14499 let new_selected_ranges = marked_ranges
14500 .into_iter()
14501 .map(|marked_range| {
14502 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14503 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14504 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14505 snapshot.clip_offset_utf16(new_start, Bias::Left)
14506 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14507 })
14508 .collect::<Vec<_>>();
14509
14510 drop(snapshot);
14511 this.change_selections(None, cx, |selections| {
14512 selections.select_ranges(new_selected_ranges)
14513 });
14514 }
14515 });
14516
14517 self.ime_transaction = self.ime_transaction.or(transaction);
14518 if let Some(transaction) = self.ime_transaction {
14519 self.buffer.update(cx, |buffer, cx| {
14520 buffer.group_until_transaction(transaction, cx);
14521 });
14522 }
14523
14524 if self.text_highlights::<InputComposition>(cx).is_none() {
14525 self.ime_transaction.take();
14526 }
14527 }
14528
14529 fn bounds_for_range(
14530 &mut self,
14531 range_utf16: Range<usize>,
14532 element_bounds: gpui::Bounds<Pixels>,
14533 cx: &mut ViewContext<Self>,
14534 ) -> Option<gpui::Bounds<Pixels>> {
14535 let text_layout_details = self.text_layout_details(cx);
14536 let gpui::Point {
14537 x: em_width,
14538 y: line_height,
14539 } = self.character_size(cx);
14540
14541 let snapshot = self.snapshot(cx);
14542 let scroll_position = snapshot.scroll_position();
14543 let scroll_left = scroll_position.x * em_width;
14544
14545 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14546 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14547 + self.gutter_dimensions.width
14548 + self.gutter_dimensions.margin;
14549 let y = line_height * (start.row().as_f32() - scroll_position.y);
14550
14551 Some(Bounds {
14552 origin: element_bounds.origin + point(x, y),
14553 size: size(em_width, line_height),
14554 })
14555 }
14556}
14557
14558trait SelectionExt {
14559 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14560 fn spanned_rows(
14561 &self,
14562 include_end_if_at_line_start: bool,
14563 map: &DisplaySnapshot,
14564 ) -> Range<MultiBufferRow>;
14565}
14566
14567impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14568 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14569 let start = self
14570 .start
14571 .to_point(&map.buffer_snapshot)
14572 .to_display_point(map);
14573 let end = self
14574 .end
14575 .to_point(&map.buffer_snapshot)
14576 .to_display_point(map);
14577 if self.reversed {
14578 end..start
14579 } else {
14580 start..end
14581 }
14582 }
14583
14584 fn spanned_rows(
14585 &self,
14586 include_end_if_at_line_start: bool,
14587 map: &DisplaySnapshot,
14588 ) -> Range<MultiBufferRow> {
14589 let start = self.start.to_point(&map.buffer_snapshot);
14590 let mut end = self.end.to_point(&map.buffer_snapshot);
14591 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14592 end.row -= 1;
14593 }
14594
14595 let buffer_start = map.prev_line_boundary(start).0;
14596 let buffer_end = map.next_line_boundary(end).0;
14597 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14598 }
14599}
14600
14601impl<T: InvalidationRegion> InvalidationStack<T> {
14602 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14603 where
14604 S: Clone + ToOffset,
14605 {
14606 while let Some(region) = self.last() {
14607 let all_selections_inside_invalidation_ranges =
14608 if selections.len() == region.ranges().len() {
14609 selections
14610 .iter()
14611 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14612 .all(|(selection, invalidation_range)| {
14613 let head = selection.head().to_offset(buffer);
14614 invalidation_range.start <= head && invalidation_range.end >= head
14615 })
14616 } else {
14617 false
14618 };
14619
14620 if all_selections_inside_invalidation_ranges {
14621 break;
14622 } else {
14623 self.pop();
14624 }
14625 }
14626 }
14627}
14628
14629impl<T> Default for InvalidationStack<T> {
14630 fn default() -> Self {
14631 Self(Default::default())
14632 }
14633}
14634
14635impl<T> Deref for InvalidationStack<T> {
14636 type Target = Vec<T>;
14637
14638 fn deref(&self) -> &Self::Target {
14639 &self.0
14640 }
14641}
14642
14643impl<T> DerefMut for InvalidationStack<T> {
14644 fn deref_mut(&mut self) -> &mut Self::Target {
14645 &mut self.0
14646 }
14647}
14648
14649impl InvalidationRegion for SnippetState {
14650 fn ranges(&self) -> &[Range<Anchor>] {
14651 &self.ranges[self.active_index]
14652 }
14653}
14654
14655pub fn diagnostic_block_renderer(
14656 diagnostic: Diagnostic,
14657 max_message_rows: Option<u8>,
14658 allow_closing: bool,
14659 _is_valid: bool,
14660) -> RenderBlock {
14661 let (text_without_backticks, code_ranges) =
14662 highlight_diagnostic_message(&diagnostic, max_message_rows);
14663
14664 Arc::new(move |cx: &mut BlockContext| {
14665 let group_id: SharedString = cx.block_id.to_string().into();
14666
14667 let mut text_style = cx.text_style().clone();
14668 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14669 let theme_settings = ThemeSettings::get_global(cx);
14670 text_style.font_family = theme_settings.buffer_font.family.clone();
14671 text_style.font_style = theme_settings.buffer_font.style;
14672 text_style.font_features = theme_settings.buffer_font.features.clone();
14673 text_style.font_weight = theme_settings.buffer_font.weight;
14674
14675 let multi_line_diagnostic = diagnostic.message.contains('\n');
14676
14677 let buttons = |diagnostic: &Diagnostic| {
14678 if multi_line_diagnostic {
14679 v_flex()
14680 } else {
14681 h_flex()
14682 }
14683 .when(allow_closing, |div| {
14684 div.children(diagnostic.is_primary.then(|| {
14685 IconButton::new("close-block", IconName::XCircle)
14686 .icon_color(Color::Muted)
14687 .size(ButtonSize::Compact)
14688 .style(ButtonStyle::Transparent)
14689 .visible_on_hover(group_id.clone())
14690 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14691 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14692 }))
14693 })
14694 .child(
14695 IconButton::new("copy-block", IconName::Copy)
14696 .icon_color(Color::Muted)
14697 .size(ButtonSize::Compact)
14698 .style(ButtonStyle::Transparent)
14699 .visible_on_hover(group_id.clone())
14700 .on_click({
14701 let message = diagnostic.message.clone();
14702 move |_click, cx| {
14703 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14704 }
14705 })
14706 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14707 )
14708 };
14709
14710 let icon_size = buttons(&diagnostic)
14711 .into_any_element()
14712 .layout_as_root(AvailableSpace::min_size(), cx);
14713
14714 h_flex()
14715 .id(cx.block_id)
14716 .group(group_id.clone())
14717 .relative()
14718 .size_full()
14719 .block_mouse_down()
14720 .pl(cx.gutter_dimensions.width)
14721 .w(cx.max_width - cx.gutter_dimensions.full_width())
14722 .child(
14723 div()
14724 .flex()
14725 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14726 .flex_shrink(),
14727 )
14728 .child(buttons(&diagnostic))
14729 .child(div().flex().flex_shrink_0().child(
14730 StyledText::new(text_without_backticks.clone()).with_highlights(
14731 &text_style,
14732 code_ranges.iter().map(|range| {
14733 (
14734 range.clone(),
14735 HighlightStyle {
14736 font_weight: Some(FontWeight::BOLD),
14737 ..Default::default()
14738 },
14739 )
14740 }),
14741 ),
14742 ))
14743 .into_any_element()
14744 })
14745}
14746
14747fn inline_completion_edit_text(
14748 editor_snapshot: &EditorSnapshot,
14749 edits: &Vec<(Range<Anchor>, String)>,
14750 include_deletions: bool,
14751 cx: &WindowContext,
14752) -> InlineCompletionText {
14753 let edit_start = edits
14754 .first()
14755 .unwrap()
14756 .0
14757 .start
14758 .to_display_point(editor_snapshot);
14759
14760 let mut text = String::new();
14761 let mut offset = DisplayPoint::new(edit_start.row(), 0).to_offset(editor_snapshot, Bias::Left);
14762 let mut highlights = Vec::new();
14763 for (old_range, new_text) in edits {
14764 let old_offset_range = old_range.to_offset(&editor_snapshot.buffer_snapshot);
14765 text.extend(
14766 editor_snapshot
14767 .buffer_snapshot
14768 .chunks(offset..old_offset_range.start, false)
14769 .map(|chunk| chunk.text),
14770 );
14771 offset = old_offset_range.end;
14772
14773 let start = text.len();
14774 let color = if include_deletions && new_text.is_empty() {
14775 text.extend(
14776 editor_snapshot
14777 .buffer_snapshot
14778 .chunks(old_offset_range.start..offset, false)
14779 .map(|chunk| chunk.text),
14780 );
14781 cx.theme().status().deleted_background
14782 } else {
14783 text.push_str(new_text);
14784 cx.theme().status().created_background
14785 };
14786 let end = text.len();
14787
14788 highlights.push((
14789 start..end,
14790 HighlightStyle {
14791 background_color: Some(color),
14792 ..Default::default()
14793 },
14794 ));
14795 }
14796
14797 let edit_end = edits
14798 .last()
14799 .unwrap()
14800 .0
14801 .end
14802 .to_display_point(editor_snapshot);
14803 let end_of_line = DisplayPoint::new(edit_end.row(), editor_snapshot.line_len(edit_end.row()))
14804 .to_offset(editor_snapshot, Bias::Right);
14805 text.extend(
14806 editor_snapshot
14807 .buffer_snapshot
14808 .chunks(offset..end_of_line, false)
14809 .map(|chunk| chunk.text),
14810 );
14811
14812 InlineCompletionText::Edit {
14813 text: text.into(),
14814 highlights,
14815 }
14816}
14817
14818pub fn highlight_diagnostic_message(
14819 diagnostic: &Diagnostic,
14820 mut max_message_rows: Option<u8>,
14821) -> (SharedString, Vec<Range<usize>>) {
14822 let mut text_without_backticks = String::new();
14823 let mut code_ranges = Vec::new();
14824
14825 if let Some(source) = &diagnostic.source {
14826 text_without_backticks.push_str(source);
14827 code_ranges.push(0..source.len());
14828 text_without_backticks.push_str(": ");
14829 }
14830
14831 let mut prev_offset = 0;
14832 let mut in_code_block = false;
14833 let has_row_limit = max_message_rows.is_some();
14834 let mut newline_indices = diagnostic
14835 .message
14836 .match_indices('\n')
14837 .filter(|_| has_row_limit)
14838 .map(|(ix, _)| ix)
14839 .fuse()
14840 .peekable();
14841
14842 for (quote_ix, _) in diagnostic
14843 .message
14844 .match_indices('`')
14845 .chain([(diagnostic.message.len(), "")])
14846 {
14847 let mut first_newline_ix = None;
14848 let mut last_newline_ix = None;
14849 while let Some(newline_ix) = newline_indices.peek() {
14850 if *newline_ix < quote_ix {
14851 if first_newline_ix.is_none() {
14852 first_newline_ix = Some(*newline_ix);
14853 }
14854 last_newline_ix = Some(*newline_ix);
14855
14856 if let Some(rows_left) = &mut max_message_rows {
14857 if *rows_left == 0 {
14858 break;
14859 } else {
14860 *rows_left -= 1;
14861 }
14862 }
14863 let _ = newline_indices.next();
14864 } else {
14865 break;
14866 }
14867 }
14868 let prev_len = text_without_backticks.len();
14869 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14870 text_without_backticks.push_str(new_text);
14871 if in_code_block {
14872 code_ranges.push(prev_len..text_without_backticks.len());
14873 }
14874 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14875 in_code_block = !in_code_block;
14876 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14877 text_without_backticks.push_str("...");
14878 break;
14879 }
14880 }
14881
14882 (text_without_backticks.into(), code_ranges)
14883}
14884
14885fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14886 match severity {
14887 DiagnosticSeverity::ERROR => colors.error,
14888 DiagnosticSeverity::WARNING => colors.warning,
14889 DiagnosticSeverity::INFORMATION => colors.info,
14890 DiagnosticSeverity::HINT => colors.info,
14891 _ => colors.ignored,
14892 }
14893}
14894
14895pub fn styled_runs_for_code_label<'a>(
14896 label: &'a CodeLabel,
14897 syntax_theme: &'a theme::SyntaxTheme,
14898) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14899 let fade_out = HighlightStyle {
14900 fade_out: Some(0.35),
14901 ..Default::default()
14902 };
14903
14904 let mut prev_end = label.filter_range.end;
14905 label
14906 .runs
14907 .iter()
14908 .enumerate()
14909 .flat_map(move |(ix, (range, highlight_id))| {
14910 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14911 style
14912 } else {
14913 return Default::default();
14914 };
14915 let mut muted_style = style;
14916 muted_style.highlight(fade_out);
14917
14918 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14919 if range.start >= label.filter_range.end {
14920 if range.start > prev_end {
14921 runs.push((prev_end..range.start, fade_out));
14922 }
14923 runs.push((range.clone(), muted_style));
14924 } else if range.end <= label.filter_range.end {
14925 runs.push((range.clone(), style));
14926 } else {
14927 runs.push((range.start..label.filter_range.end, style));
14928 runs.push((label.filter_range.end..range.end, muted_style));
14929 }
14930 prev_end = cmp::max(prev_end, range.end);
14931
14932 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14933 runs.push((prev_end..label.text.len(), fade_out));
14934 }
14935
14936 runs
14937 })
14938}
14939
14940pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14941 let mut prev_index = 0;
14942 let mut prev_codepoint: Option<char> = None;
14943 text.char_indices()
14944 .chain([(text.len(), '\0')])
14945 .filter_map(move |(index, codepoint)| {
14946 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14947 let is_boundary = index == text.len()
14948 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14949 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14950 if is_boundary {
14951 let chunk = &text[prev_index..index];
14952 prev_index = index;
14953 Some(chunk)
14954 } else {
14955 None
14956 }
14957 })
14958}
14959
14960pub trait RangeToAnchorExt: Sized {
14961 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14962
14963 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14964 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14965 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14966 }
14967}
14968
14969impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14970 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14971 let start_offset = self.start.to_offset(snapshot);
14972 let end_offset = self.end.to_offset(snapshot);
14973 if start_offset == end_offset {
14974 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14975 } else {
14976 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14977 }
14978 }
14979}
14980
14981pub trait RowExt {
14982 fn as_f32(&self) -> f32;
14983
14984 fn next_row(&self) -> Self;
14985
14986 fn previous_row(&self) -> Self;
14987
14988 fn minus(&self, other: Self) -> u32;
14989}
14990
14991impl RowExt for DisplayRow {
14992 fn as_f32(&self) -> f32 {
14993 self.0 as f32
14994 }
14995
14996 fn next_row(&self) -> Self {
14997 Self(self.0 + 1)
14998 }
14999
15000 fn previous_row(&self) -> Self {
15001 Self(self.0.saturating_sub(1))
15002 }
15003
15004 fn minus(&self, other: Self) -> u32 {
15005 self.0 - other.0
15006 }
15007}
15008
15009impl RowExt for MultiBufferRow {
15010 fn as_f32(&self) -> f32 {
15011 self.0 as f32
15012 }
15013
15014 fn next_row(&self) -> Self {
15015 Self(self.0 + 1)
15016 }
15017
15018 fn previous_row(&self) -> Self {
15019 Self(self.0.saturating_sub(1))
15020 }
15021
15022 fn minus(&self, other: Self) -> u32 {
15023 self.0 - other.0
15024 }
15025}
15026
15027trait RowRangeExt {
15028 type Row;
15029
15030 fn len(&self) -> usize;
15031
15032 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
15033}
15034
15035impl RowRangeExt for Range<MultiBufferRow> {
15036 type Row = MultiBufferRow;
15037
15038 fn len(&self) -> usize {
15039 (self.end.0 - self.start.0) as usize
15040 }
15041
15042 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
15043 (self.start.0..self.end.0).map(MultiBufferRow)
15044 }
15045}
15046
15047impl RowRangeExt for Range<DisplayRow> {
15048 type Row = DisplayRow;
15049
15050 fn len(&self) -> usize {
15051 (self.end.0 - self.start.0) as usize
15052 }
15053
15054 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
15055 (self.start.0..self.end.0).map(DisplayRow)
15056 }
15057}
15058
15059fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
15060 if hunk.diff_base_byte_range.is_empty() {
15061 DiffHunkStatus::Added
15062 } else if hunk.row_range.is_empty() {
15063 DiffHunkStatus::Removed
15064 } else {
15065 DiffHunkStatus::Modified
15066 }
15067}
15068
15069/// If select range has more than one line, we
15070/// just point the cursor to range.start.
15071fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
15072 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
15073 range
15074 } else {
15075 range.start..range.start
15076 }
15077}
15078
15079pub struct KillRing(ClipboardItem);
15080impl Global for KillRing {}
15081
15082const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);