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, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
103 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(crate) 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)]
995struct JumpData {
996 excerpt_id: ExcerptId,
997 position: Point,
998 anchor: text::Anchor,
999 path: Option<project::ProjectPath>,
1000 line_offset_from_top: u32,
1001}
1002
1003impl Editor {
1004 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1005 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1006 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1007 Self::new(
1008 EditorMode::SingleLine { auto_width: false },
1009 buffer,
1010 None,
1011 false,
1012 cx,
1013 )
1014 }
1015
1016 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1017 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1018 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1019 Self::new(EditorMode::Full, buffer, None, false, cx)
1020 }
1021
1022 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1023 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1024 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1025 Self::new(
1026 EditorMode::SingleLine { auto_width: true },
1027 buffer,
1028 None,
1029 false,
1030 cx,
1031 )
1032 }
1033
1034 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1035 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1036 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1037 Self::new(
1038 EditorMode::AutoHeight { max_lines },
1039 buffer,
1040 None,
1041 false,
1042 cx,
1043 )
1044 }
1045
1046 pub fn for_buffer(
1047 buffer: Model<Buffer>,
1048 project: Option<Model<Project>>,
1049 cx: &mut ViewContext<Self>,
1050 ) -> Self {
1051 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1052 Self::new(EditorMode::Full, buffer, project, false, cx)
1053 }
1054
1055 pub fn for_multibuffer(
1056 buffer: Model<MultiBuffer>,
1057 project: Option<Model<Project>>,
1058 show_excerpt_controls: bool,
1059 cx: &mut ViewContext<Self>,
1060 ) -> Self {
1061 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1062 }
1063
1064 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1065 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1066 let mut clone = Self::new(
1067 self.mode,
1068 self.buffer.clone(),
1069 self.project.clone(),
1070 show_excerpt_controls,
1071 cx,
1072 );
1073 self.display_map.update(cx, |display_map, cx| {
1074 let snapshot = display_map.snapshot(cx);
1075 clone.display_map.update(cx, |display_map, cx| {
1076 display_map.set_state(&snapshot, cx);
1077 });
1078 });
1079 clone.selections.clone_state(&self.selections);
1080 clone.scroll_manager.clone_state(&self.scroll_manager);
1081 clone.searchable = self.searchable;
1082 clone
1083 }
1084
1085 pub fn new(
1086 mode: EditorMode,
1087 buffer: Model<MultiBuffer>,
1088 project: Option<Model<Project>>,
1089 show_excerpt_controls: bool,
1090 cx: &mut ViewContext<Self>,
1091 ) -> Self {
1092 let style = cx.text_style();
1093 let font_size = style.font_size.to_pixels(cx.rem_size());
1094 let editor = cx.view().downgrade();
1095 let fold_placeholder = FoldPlaceholder {
1096 constrain_width: true,
1097 render: Arc::new(move |fold_id, fold_range, cx| {
1098 let editor = editor.clone();
1099 div()
1100 .id(fold_id)
1101 .bg(cx.theme().colors().ghost_element_background)
1102 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1103 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1104 .rounded_sm()
1105 .size_full()
1106 .cursor_pointer()
1107 .child("⋯")
1108 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1109 .on_click(move |_, cx| {
1110 editor
1111 .update(cx, |editor, cx| {
1112 editor.unfold_ranges(
1113 &[fold_range.start..fold_range.end],
1114 true,
1115 false,
1116 cx,
1117 );
1118 cx.stop_propagation();
1119 })
1120 .ok();
1121 })
1122 .into_any()
1123 }),
1124 merge_adjacent: true,
1125 ..Default::default()
1126 };
1127 let display_map = cx.new_model(|cx| {
1128 DisplayMap::new(
1129 buffer.clone(),
1130 style.font(),
1131 font_size,
1132 None,
1133 show_excerpt_controls,
1134 FILE_HEADER_HEIGHT,
1135 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1136 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1137 fold_placeholder,
1138 cx,
1139 )
1140 });
1141
1142 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1143
1144 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1145
1146 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1147 .then(|| language_settings::SoftWrap::None);
1148
1149 let mut project_subscriptions = Vec::new();
1150 if mode == EditorMode::Full {
1151 if let Some(project) = project.as_ref() {
1152 if buffer.read(cx).is_singleton() {
1153 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1154 cx.emit(EditorEvent::TitleChanged);
1155 }));
1156 }
1157 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1158 if let project::Event::RefreshInlayHints = event {
1159 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1160 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1161 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1162 let focus_handle = editor.focus_handle(cx);
1163 if focus_handle.is_focused(cx) {
1164 let snapshot = buffer.read(cx).snapshot();
1165 for (range, snippet) in snippet_edits {
1166 let editor_range =
1167 language::range_from_lsp(*range).to_offset(&snapshot);
1168 editor
1169 .insert_snippet(&[editor_range], snippet.clone(), cx)
1170 .ok();
1171 }
1172 }
1173 }
1174 }
1175 }));
1176 if let Some(task_inventory) = project
1177 .read(cx)
1178 .task_store()
1179 .read(cx)
1180 .task_inventory()
1181 .cloned()
1182 {
1183 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1184 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1185 }));
1186 }
1187 }
1188 }
1189
1190 let buffer_snapshot = buffer.read(cx).snapshot(cx);
1191
1192 let inlay_hint_settings =
1193 inlay_hint_settings(selections.newest_anchor().head(), &buffer_snapshot, cx);
1194 let focus_handle = cx.focus_handle();
1195 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1196 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1197 .detach();
1198 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1199 .detach();
1200 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1201
1202 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1203 Some(false)
1204 } else {
1205 None
1206 };
1207
1208 let mut code_action_providers = Vec::new();
1209 if let Some(project) = project.clone() {
1210 get_unstaged_changes_for_buffers(&project, buffer.read(cx).all_buffers(), cx);
1211 code_action_providers.push(Rc::new(project) as Rc<_>);
1212 }
1213
1214 let mut this = Self {
1215 focus_handle,
1216 show_cursor_when_unfocused: false,
1217 last_focused_descendant: None,
1218 buffer: buffer.clone(),
1219 display_map: display_map.clone(),
1220 selections,
1221 scroll_manager: ScrollManager::new(cx),
1222 columnar_selection_tail: None,
1223 add_selections_state: None,
1224 select_next_state: None,
1225 select_prev_state: None,
1226 selection_history: Default::default(),
1227 autoclose_regions: Default::default(),
1228 snippet_stack: Default::default(),
1229 select_larger_syntax_node_stack: Vec::new(),
1230 ime_transaction: Default::default(),
1231 active_diagnostics: None,
1232 soft_wrap_mode_override,
1233 completion_provider: project.clone().map(|project| Box::new(project) as _),
1234 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1235 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1236 project,
1237 blink_manager: blink_manager.clone(),
1238 show_local_selections: true,
1239 show_scrollbars: true,
1240 mode,
1241 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1242 show_gutter: mode == EditorMode::Full,
1243 show_line_numbers: None,
1244 use_relative_line_numbers: None,
1245 show_git_diff_gutter: None,
1246 show_code_actions: None,
1247 show_runnables: None,
1248 show_wrap_guides: None,
1249 show_indent_guides,
1250 placeholder_text: None,
1251 highlight_order: 0,
1252 highlighted_rows: HashMap::default(),
1253 background_highlights: Default::default(),
1254 gutter_highlights: TreeMap::default(),
1255 scrollbar_marker_state: ScrollbarMarkerState::default(),
1256 active_indent_guides_state: ActiveIndentGuidesState::default(),
1257 nav_history: None,
1258 context_menu: RefCell::new(None),
1259 mouse_context_menu: None,
1260 hunk_controls_menu_handle: PopoverMenuHandle::default(),
1261 completion_tasks: Default::default(),
1262 signature_help_state: SignatureHelpState::default(),
1263 auto_signature_help: None,
1264 find_all_references_task_sources: Vec::new(),
1265 next_completion_id: 0,
1266 next_inlay_id: 0,
1267 code_action_providers,
1268 available_code_actions: Default::default(),
1269 code_actions_task: Default::default(),
1270 document_highlights_task: Default::default(),
1271 linked_editing_range_task: Default::default(),
1272 pending_rename: Default::default(),
1273 searchable: true,
1274 cursor_shape: EditorSettings::get_global(cx)
1275 .cursor_shape
1276 .unwrap_or_default(),
1277 current_line_highlight: None,
1278 autoindent_mode: Some(AutoindentMode::EachLine),
1279 collapse_matches: false,
1280 workspace: None,
1281 input_enabled: true,
1282 use_modal_editing: mode == EditorMode::Full,
1283 read_only: false,
1284 use_autoclose: true,
1285 use_auto_surround: true,
1286 auto_replace_emoji_shortcode: false,
1287 leader_peer_id: None,
1288 remote_id: None,
1289 hover_state: Default::default(),
1290 hovered_link_state: Default::default(),
1291 inline_completion_provider: None,
1292 active_inline_completion: None,
1293 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1294 diff_map: DiffMap::default(),
1295 gutter_hovered: false,
1296 pixel_position_of_newest_cursor: None,
1297 last_bounds: None,
1298 expect_bounds_change: None,
1299 gutter_dimensions: GutterDimensions::default(),
1300 style: None,
1301 show_cursor_names: false,
1302 hovered_cursors: Default::default(),
1303 next_editor_action_id: EditorActionId::default(),
1304 editor_actions: Rc::default(),
1305 show_inline_completions_override: None,
1306 enable_inline_completions: true,
1307 custom_context_menu: None,
1308 show_git_blame_gutter: false,
1309 show_git_blame_inline: false,
1310 show_selection_menu: None,
1311 show_git_blame_inline_delay_task: None,
1312 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1313 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1314 .session
1315 .restore_unsaved_buffers,
1316 blame: None,
1317 blame_subscription: None,
1318 tasks: Default::default(),
1319 _subscriptions: vec![
1320 cx.observe(&buffer, Self::on_buffer_changed),
1321 cx.subscribe(&buffer, Self::on_buffer_event),
1322 cx.observe(&display_map, Self::on_display_map_changed),
1323 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1324 cx.observe_global::<SettingsStore>(Self::settings_changed),
1325 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1326 cx.observe_window_activation(|editor, cx| {
1327 let active = cx.is_window_active();
1328 editor.blink_manager.update(cx, |blink_manager, cx| {
1329 if active {
1330 blink_manager.enable(cx);
1331 } else {
1332 blink_manager.disable(cx);
1333 }
1334 });
1335 }),
1336 ],
1337 tasks_update_task: None,
1338 linked_edit_ranges: Default::default(),
1339 previous_search_ranges: None,
1340 breadcrumb_header: None,
1341 focused_block: None,
1342 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
1343 addons: HashMap::default(),
1344 registered_buffers: HashMap::default(),
1345 _scroll_cursor_center_top_bottom_task: Task::ready(()),
1346 toggle_fold_multiple_buffers: Task::ready(()),
1347 text_style_refinement: None,
1348 };
1349 this.tasks_update_task = Some(this.refresh_runnables(cx));
1350 this._subscriptions.extend(project_subscriptions);
1351
1352 this.end_selection(cx);
1353 this.scroll_manager.show_scrollbar(cx);
1354
1355 if mode == EditorMode::Full {
1356 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1357 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1358
1359 if this.git_blame_inline_enabled {
1360 this.git_blame_inline_enabled = true;
1361 this.start_git_blame_inline(false, cx);
1362 }
1363
1364 if let Some(buffer) = buffer.read(cx).as_singleton() {
1365 if let Some(project) = this.project.as_ref() {
1366 let lsp_store = project.read(cx).lsp_store();
1367 let handle = lsp_store.update(cx, |lsp_store, cx| {
1368 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1369 });
1370 this.registered_buffers
1371 .insert(buffer.read(cx).remote_id(), handle);
1372 }
1373 }
1374 }
1375
1376 this.report_editor_event("Editor Opened", None, cx);
1377 this
1378 }
1379
1380 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
1381 self.mouse_context_menu
1382 .as_ref()
1383 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1384 }
1385
1386 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
1387 let mut key_context = KeyContext::new_with_defaults();
1388 key_context.add("Editor");
1389 let mode = match self.mode {
1390 EditorMode::SingleLine { .. } => "single_line",
1391 EditorMode::AutoHeight { .. } => "auto_height",
1392 EditorMode::Full => "full",
1393 };
1394
1395 if EditorSettings::jupyter_enabled(cx) {
1396 key_context.add("jupyter");
1397 }
1398
1399 key_context.set("mode", mode);
1400 if self.pending_rename.is_some() {
1401 key_context.add("renaming");
1402 }
1403 match self.context_menu.borrow().as_ref() {
1404 Some(CodeContextMenu::Completions(_)) => {
1405 key_context.add("menu");
1406 key_context.add("showing_completions")
1407 }
1408 Some(CodeContextMenu::CodeActions(_)) => {
1409 key_context.add("menu");
1410 key_context.add("showing_code_actions")
1411 }
1412 None => {}
1413 }
1414
1415 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
1416 if !self.focus_handle(cx).contains_focused(cx)
1417 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
1418 {
1419 for addon in self.addons.values() {
1420 addon.extend_key_context(&mut key_context, cx)
1421 }
1422 }
1423
1424 if let Some(extension) = self
1425 .buffer
1426 .read(cx)
1427 .as_singleton()
1428 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1429 {
1430 key_context.set("extension", extension.to_string());
1431 }
1432
1433 if self.has_active_inline_completion() {
1434 key_context.add("copilot_suggestion");
1435 key_context.add("inline_completion");
1436 }
1437
1438 if !self
1439 .selections
1440 .disjoint
1441 .iter()
1442 .all(|selection| selection.start == selection.end)
1443 {
1444 key_context.add("selection");
1445 }
1446
1447 key_context
1448 }
1449
1450 pub fn new_file(
1451 workspace: &mut Workspace,
1452 _: &workspace::NewFile,
1453 cx: &mut ViewContext<Workspace>,
1454 ) {
1455 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
1456 "Failed to create buffer",
1457 cx,
1458 |e, _| match e.error_code() {
1459 ErrorCode::RemoteUpgradeRequired => Some(format!(
1460 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1461 e.error_tag("required").unwrap_or("the latest version")
1462 )),
1463 _ => None,
1464 },
1465 );
1466 }
1467
1468 pub fn new_in_workspace(
1469 workspace: &mut Workspace,
1470 cx: &mut ViewContext<Workspace>,
1471 ) -> Task<Result<View<Editor>>> {
1472 let project = workspace.project().clone();
1473 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1474
1475 cx.spawn(|workspace, mut cx| async move {
1476 let buffer = create.await?;
1477 workspace.update(&mut cx, |workspace, cx| {
1478 let editor =
1479 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
1480 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
1481 editor
1482 })
1483 })
1484 }
1485
1486 fn new_file_vertical(
1487 workspace: &mut Workspace,
1488 _: &workspace::NewFileSplitVertical,
1489 cx: &mut ViewContext<Workspace>,
1490 ) {
1491 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
1492 }
1493
1494 fn new_file_horizontal(
1495 workspace: &mut Workspace,
1496 _: &workspace::NewFileSplitHorizontal,
1497 cx: &mut ViewContext<Workspace>,
1498 ) {
1499 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
1500 }
1501
1502 fn new_file_in_direction(
1503 workspace: &mut Workspace,
1504 direction: SplitDirection,
1505 cx: &mut ViewContext<Workspace>,
1506 ) {
1507 let project = workspace.project().clone();
1508 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1509
1510 cx.spawn(|workspace, mut cx| async move {
1511 let buffer = create.await?;
1512 workspace.update(&mut cx, move |workspace, cx| {
1513 workspace.split_item(
1514 direction,
1515 Box::new(
1516 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1517 ),
1518 cx,
1519 )
1520 })?;
1521 anyhow::Ok(())
1522 })
1523 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1524 ErrorCode::RemoteUpgradeRequired => Some(format!(
1525 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1526 e.error_tag("required").unwrap_or("the latest version")
1527 )),
1528 _ => None,
1529 });
1530 }
1531
1532 pub fn leader_peer_id(&self) -> Option<PeerId> {
1533 self.leader_peer_id
1534 }
1535
1536 pub fn buffer(&self) -> &Model<MultiBuffer> {
1537 &self.buffer
1538 }
1539
1540 pub fn workspace(&self) -> Option<View<Workspace>> {
1541 self.workspace.as_ref()?.0.upgrade()
1542 }
1543
1544 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1545 self.buffer().read(cx).title(cx)
1546 }
1547
1548 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1549 let git_blame_gutter_max_author_length = self
1550 .render_git_blame_gutter(cx)
1551 .then(|| {
1552 if let Some(blame) = self.blame.as_ref() {
1553 let max_author_length =
1554 blame.update(cx, |blame, cx| blame.max_author_length(cx));
1555 Some(max_author_length)
1556 } else {
1557 None
1558 }
1559 })
1560 .flatten();
1561
1562 EditorSnapshot {
1563 mode: self.mode,
1564 show_gutter: self.show_gutter,
1565 show_line_numbers: self.show_line_numbers,
1566 show_git_diff_gutter: self.show_git_diff_gutter,
1567 show_code_actions: self.show_code_actions,
1568 show_runnables: self.show_runnables,
1569 git_blame_gutter_max_author_length,
1570 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1571 scroll_anchor: self.scroll_manager.anchor(),
1572 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1573 placeholder_text: self.placeholder_text.clone(),
1574 diff_map: self.diff_map.snapshot(),
1575 is_focused: self.focus_handle.is_focused(cx),
1576 current_line_highlight: self
1577 .current_line_highlight
1578 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
1579 gutter_hovered: self.gutter_hovered,
1580 }
1581 }
1582
1583 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1584 self.buffer.read(cx).language_at(point, cx)
1585 }
1586
1587 pub fn file_at<T: ToOffset>(
1588 &self,
1589 point: T,
1590 cx: &AppContext,
1591 ) -> Option<Arc<dyn language::File>> {
1592 self.buffer.read(cx).read(cx).file_at(point).cloned()
1593 }
1594
1595 pub fn active_excerpt(
1596 &self,
1597 cx: &AppContext,
1598 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1599 self.buffer
1600 .read(cx)
1601 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1602 }
1603
1604 pub fn mode(&self) -> EditorMode {
1605 self.mode
1606 }
1607
1608 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1609 self.collaboration_hub.as_deref()
1610 }
1611
1612 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1613 self.collaboration_hub = Some(hub);
1614 }
1615
1616 pub fn set_custom_context_menu(
1617 &mut self,
1618 f: impl 'static
1619 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1620 ) {
1621 self.custom_context_menu = Some(Box::new(f))
1622 }
1623
1624 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
1625 self.completion_provider = provider;
1626 }
1627
1628 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
1629 self.semantics_provider.clone()
1630 }
1631
1632 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
1633 self.semantics_provider = provider;
1634 }
1635
1636 pub fn set_inline_completion_provider<T>(
1637 &mut self,
1638 provider: Option<Model<T>>,
1639 cx: &mut ViewContext<Self>,
1640 ) where
1641 T: InlineCompletionProvider,
1642 {
1643 self.inline_completion_provider =
1644 provider.map(|provider| RegisteredInlineCompletionProvider {
1645 _subscription: cx.observe(&provider, |this, _, cx| {
1646 if this.focus_handle.is_focused(cx) {
1647 this.update_visible_inline_completion(cx);
1648 }
1649 }),
1650 provider: Arc::new(provider),
1651 });
1652 self.refresh_inline_completion(false, false, cx);
1653 }
1654
1655 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
1656 self.placeholder_text.as_deref()
1657 }
1658
1659 pub fn set_placeholder_text(
1660 &mut self,
1661 placeholder_text: impl Into<Arc<str>>,
1662 cx: &mut ViewContext<Self>,
1663 ) {
1664 let placeholder_text = Some(placeholder_text.into());
1665 if self.placeholder_text != placeholder_text {
1666 self.placeholder_text = placeholder_text;
1667 cx.notify();
1668 }
1669 }
1670
1671 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1672 self.cursor_shape = cursor_shape;
1673
1674 // Disrupt blink for immediate user feedback that the cursor shape has changed
1675 self.blink_manager.update(cx, BlinkManager::show_cursor);
1676
1677 cx.notify();
1678 }
1679
1680 pub fn set_current_line_highlight(
1681 &mut self,
1682 current_line_highlight: Option<CurrentLineHighlight>,
1683 ) {
1684 self.current_line_highlight = current_line_highlight;
1685 }
1686
1687 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1688 self.collapse_matches = collapse_matches;
1689 }
1690
1691 pub fn register_buffers_with_language_servers(&mut self, cx: &mut ViewContext<Self>) {
1692 let buffers = self.buffer.read(cx).all_buffers();
1693 let Some(lsp_store) = self.lsp_store(cx) else {
1694 return;
1695 };
1696 lsp_store.update(cx, |lsp_store, cx| {
1697 for buffer in buffers {
1698 self.registered_buffers
1699 .entry(buffer.read(cx).remote_id())
1700 .or_insert_with(|| {
1701 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1702 });
1703 }
1704 })
1705 }
1706
1707 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1708 if self.collapse_matches {
1709 return range.start..range.start;
1710 }
1711 range.clone()
1712 }
1713
1714 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1715 if self.display_map.read(cx).clip_at_line_ends != clip {
1716 self.display_map
1717 .update(cx, |map, _| map.clip_at_line_ends = clip);
1718 }
1719 }
1720
1721 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1722 self.input_enabled = input_enabled;
1723 }
1724
1725 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
1726 self.enable_inline_completions = enabled;
1727 }
1728
1729 pub fn set_autoindent(&mut self, autoindent: bool) {
1730 if autoindent {
1731 self.autoindent_mode = Some(AutoindentMode::EachLine);
1732 } else {
1733 self.autoindent_mode = None;
1734 }
1735 }
1736
1737 pub fn read_only(&self, cx: &AppContext) -> bool {
1738 self.read_only || self.buffer.read(cx).read_only()
1739 }
1740
1741 pub fn set_read_only(&mut self, read_only: bool) {
1742 self.read_only = read_only;
1743 }
1744
1745 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1746 self.use_autoclose = autoclose;
1747 }
1748
1749 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
1750 self.use_auto_surround = auto_surround;
1751 }
1752
1753 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1754 self.auto_replace_emoji_shortcode = auto_replace;
1755 }
1756
1757 pub fn toggle_inline_completions(
1758 &mut self,
1759 _: &ToggleInlineCompletions,
1760 cx: &mut ViewContext<Self>,
1761 ) {
1762 if self.show_inline_completions_override.is_some() {
1763 self.set_show_inline_completions(None, cx);
1764 } else {
1765 let cursor = self.selections.newest_anchor().head();
1766 if let Some((buffer, cursor_buffer_position)) =
1767 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1768 {
1769 let show_inline_completions =
1770 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
1771 self.set_show_inline_completions(Some(show_inline_completions), cx);
1772 }
1773 }
1774 }
1775
1776 pub fn set_show_inline_completions(
1777 &mut self,
1778 show_inline_completions: Option<bool>,
1779 cx: &mut ViewContext<Self>,
1780 ) {
1781 self.show_inline_completions_override = show_inline_completions;
1782 self.refresh_inline_completion(false, true, cx);
1783 }
1784
1785 fn should_show_inline_completions(
1786 &self,
1787 buffer: &Model<Buffer>,
1788 buffer_position: language::Anchor,
1789 cx: &AppContext,
1790 ) -> bool {
1791 if !self.snippet_stack.is_empty() {
1792 return false;
1793 }
1794
1795 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
1796 return false;
1797 }
1798
1799 if let Some(provider) = self.inline_completion_provider() {
1800 if let Some(show_inline_completions) = self.show_inline_completions_override {
1801 show_inline_completions
1802 } else {
1803 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
1804 }
1805 } else {
1806 false
1807 }
1808 }
1809
1810 fn inline_completions_disabled_in_scope(
1811 &self,
1812 buffer: &Model<Buffer>,
1813 buffer_position: language::Anchor,
1814 cx: &AppContext,
1815 ) -> bool {
1816 let snapshot = buffer.read(cx).snapshot();
1817 let settings = snapshot.settings_at(buffer_position, cx);
1818
1819 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
1820 return false;
1821 };
1822
1823 scope.override_name().map_or(false, |scope_name| {
1824 settings
1825 .inline_completions_disabled_in
1826 .iter()
1827 .any(|s| s == scope_name)
1828 })
1829 }
1830
1831 pub fn set_use_modal_editing(&mut self, to: bool) {
1832 self.use_modal_editing = to;
1833 }
1834
1835 pub fn use_modal_editing(&self) -> bool {
1836 self.use_modal_editing
1837 }
1838
1839 fn selections_did_change(
1840 &mut self,
1841 local: bool,
1842 old_cursor_position: &Anchor,
1843 show_completions: bool,
1844 cx: &mut ViewContext<Self>,
1845 ) {
1846 cx.invalidate_character_coordinates();
1847
1848 // Copy selections to primary selection buffer
1849 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1850 if local {
1851 let selections = self.selections.all::<usize>(cx);
1852 let buffer_handle = self.buffer.read(cx).read(cx);
1853
1854 let mut text = String::new();
1855 for (index, selection) in selections.iter().enumerate() {
1856 let text_for_selection = buffer_handle
1857 .text_for_range(selection.start..selection.end)
1858 .collect::<String>();
1859
1860 text.push_str(&text_for_selection);
1861 if index != selections.len() - 1 {
1862 text.push('\n');
1863 }
1864 }
1865
1866 if !text.is_empty() {
1867 cx.write_to_primary(ClipboardItem::new_string(text));
1868 }
1869 }
1870
1871 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1872 self.buffer.update(cx, |buffer, cx| {
1873 buffer.set_active_selections(
1874 &self.selections.disjoint_anchors(),
1875 self.selections.line_mode,
1876 self.cursor_shape,
1877 cx,
1878 )
1879 });
1880 }
1881 let display_map = self
1882 .display_map
1883 .update(cx, |display_map, cx| display_map.snapshot(cx));
1884 let buffer = &display_map.buffer_snapshot;
1885 self.add_selections_state = None;
1886 self.select_next_state = None;
1887 self.select_prev_state = None;
1888 self.select_larger_syntax_node_stack.clear();
1889 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1890 self.snippet_stack
1891 .invalidate(&self.selections.disjoint_anchors(), buffer);
1892 self.take_rename(false, cx);
1893
1894 let new_cursor_position = self.selections.newest_anchor().head();
1895
1896 self.push_to_nav_history(
1897 *old_cursor_position,
1898 Some(new_cursor_position.to_point(buffer)),
1899 cx,
1900 );
1901
1902 if local {
1903 let new_cursor_position = self.selections.newest_anchor().head();
1904 let mut context_menu = self.context_menu.borrow_mut();
1905 let completion_menu = match context_menu.as_ref() {
1906 Some(CodeContextMenu::Completions(menu)) => Some(menu),
1907 _ => {
1908 *context_menu = None;
1909 None
1910 }
1911 };
1912
1913 if let Some(completion_menu) = completion_menu {
1914 let cursor_position = new_cursor_position.to_offset(buffer);
1915 let (word_range, kind) =
1916 buffer.surrounding_word(completion_menu.initial_position, true);
1917 if kind == Some(CharKind::Word)
1918 && word_range.to_inclusive().contains(&cursor_position)
1919 {
1920 let mut completion_menu = completion_menu.clone();
1921 drop(context_menu);
1922
1923 let query = Self::completion_query(buffer, cursor_position);
1924 cx.spawn(move |this, mut cx| async move {
1925 completion_menu
1926 .filter(query.as_deref(), cx.background_executor().clone())
1927 .await;
1928
1929 this.update(&mut cx, |this, cx| {
1930 let mut context_menu = this.context_menu.borrow_mut();
1931 let Some(CodeContextMenu::Completions(menu)) = context_menu.as_ref()
1932 else {
1933 return;
1934 };
1935
1936 if menu.id > completion_menu.id {
1937 return;
1938 }
1939
1940 *context_menu = Some(CodeContextMenu::Completions(completion_menu));
1941 drop(context_menu);
1942 cx.notify();
1943 })
1944 })
1945 .detach();
1946
1947 if show_completions {
1948 self.show_completions(&ShowCompletions { trigger: None }, cx);
1949 }
1950 } else {
1951 drop(context_menu);
1952 self.hide_context_menu(cx);
1953 }
1954 } else {
1955 drop(context_menu);
1956 }
1957
1958 hide_hover(self, cx);
1959
1960 if old_cursor_position.to_display_point(&display_map).row()
1961 != new_cursor_position.to_display_point(&display_map).row()
1962 {
1963 self.available_code_actions.take();
1964 }
1965 self.refresh_code_actions(cx);
1966 self.refresh_document_highlights(cx);
1967 refresh_matching_bracket_highlights(self, cx);
1968 self.update_visible_inline_completion(cx);
1969 linked_editing_ranges::refresh_linked_ranges(self, cx);
1970 if self.git_blame_inline_enabled {
1971 self.start_inline_blame_timer(cx);
1972 }
1973 }
1974
1975 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1976 cx.emit(EditorEvent::SelectionsChanged { local });
1977
1978 if self.selections.disjoint_anchors().len() == 1 {
1979 cx.emit(SearchEvent::ActiveMatchChanged)
1980 }
1981 cx.notify();
1982 }
1983
1984 pub fn change_selections<R>(
1985 &mut self,
1986 autoscroll: Option<Autoscroll>,
1987 cx: &mut ViewContext<Self>,
1988 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1989 ) -> R {
1990 self.change_selections_inner(autoscroll, true, cx, change)
1991 }
1992
1993 pub fn change_selections_inner<R>(
1994 &mut self,
1995 autoscroll: Option<Autoscroll>,
1996 request_completions: bool,
1997 cx: &mut ViewContext<Self>,
1998 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1999 ) -> R {
2000 let old_cursor_position = self.selections.newest_anchor().head();
2001 self.push_to_selection_history();
2002
2003 let (changed, result) = self.selections.change_with(cx, change);
2004
2005 if changed {
2006 if let Some(autoscroll) = autoscroll {
2007 self.request_autoscroll(autoscroll, cx);
2008 }
2009 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2010
2011 if self.should_open_signature_help_automatically(
2012 &old_cursor_position,
2013 self.signature_help_state.backspace_pressed(),
2014 cx,
2015 ) {
2016 self.show_signature_help(&ShowSignatureHelp, cx);
2017 }
2018 self.signature_help_state.set_backspace_pressed(false);
2019 }
2020
2021 result
2022 }
2023
2024 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2025 where
2026 I: IntoIterator<Item = (Range<S>, T)>,
2027 S: ToOffset,
2028 T: Into<Arc<str>>,
2029 {
2030 if self.read_only(cx) {
2031 return;
2032 }
2033
2034 self.buffer
2035 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2036 }
2037
2038 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2039 where
2040 I: IntoIterator<Item = (Range<S>, T)>,
2041 S: ToOffset,
2042 T: Into<Arc<str>>,
2043 {
2044 if self.read_only(cx) {
2045 return;
2046 }
2047
2048 self.buffer.update(cx, |buffer, cx| {
2049 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2050 });
2051 }
2052
2053 pub fn edit_with_block_indent<I, S, T>(
2054 &mut self,
2055 edits: I,
2056 original_indent_columns: Vec<u32>,
2057 cx: &mut ViewContext<Self>,
2058 ) where
2059 I: IntoIterator<Item = (Range<S>, T)>,
2060 S: ToOffset,
2061 T: Into<Arc<str>>,
2062 {
2063 if self.read_only(cx) {
2064 return;
2065 }
2066
2067 self.buffer.update(cx, |buffer, cx| {
2068 buffer.edit(
2069 edits,
2070 Some(AutoindentMode::Block {
2071 original_indent_columns,
2072 }),
2073 cx,
2074 )
2075 });
2076 }
2077
2078 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2079 self.hide_context_menu(cx);
2080
2081 match phase {
2082 SelectPhase::Begin {
2083 position,
2084 add,
2085 click_count,
2086 } => self.begin_selection(position, add, click_count, cx),
2087 SelectPhase::BeginColumnar {
2088 position,
2089 goal_column,
2090 reset,
2091 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2092 SelectPhase::Extend {
2093 position,
2094 click_count,
2095 } => self.extend_selection(position, click_count, cx),
2096 SelectPhase::Update {
2097 position,
2098 goal_column,
2099 scroll_delta,
2100 } => self.update_selection(position, goal_column, scroll_delta, cx),
2101 SelectPhase::End => self.end_selection(cx),
2102 }
2103 }
2104
2105 fn extend_selection(
2106 &mut self,
2107 position: DisplayPoint,
2108 click_count: usize,
2109 cx: &mut ViewContext<Self>,
2110 ) {
2111 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2112 let tail = self.selections.newest::<usize>(cx).tail();
2113 self.begin_selection(position, false, click_count, cx);
2114
2115 let position = position.to_offset(&display_map, Bias::Left);
2116 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2117
2118 let mut pending_selection = self
2119 .selections
2120 .pending_anchor()
2121 .expect("extend_selection not called with pending selection");
2122 if position >= tail {
2123 pending_selection.start = tail_anchor;
2124 } else {
2125 pending_selection.end = tail_anchor;
2126 pending_selection.reversed = true;
2127 }
2128
2129 let mut pending_mode = self.selections.pending_mode().unwrap();
2130 match &mut pending_mode {
2131 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2132 _ => {}
2133 }
2134
2135 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2136 s.set_pending(pending_selection, pending_mode)
2137 });
2138 }
2139
2140 fn begin_selection(
2141 &mut self,
2142 position: DisplayPoint,
2143 add: bool,
2144 click_count: usize,
2145 cx: &mut ViewContext<Self>,
2146 ) {
2147 if !self.focus_handle.is_focused(cx) {
2148 self.last_focused_descendant = None;
2149 cx.focus(&self.focus_handle);
2150 }
2151
2152 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2153 let buffer = &display_map.buffer_snapshot;
2154 let newest_selection = self.selections.newest_anchor().clone();
2155 let position = display_map.clip_point(position, Bias::Left);
2156
2157 let start;
2158 let end;
2159 let mode;
2160 let mut auto_scroll;
2161 match click_count {
2162 1 => {
2163 start = buffer.anchor_before(position.to_point(&display_map));
2164 end = start;
2165 mode = SelectMode::Character;
2166 auto_scroll = true;
2167 }
2168 2 => {
2169 let range = movement::surrounding_word(&display_map, position);
2170 start = buffer.anchor_before(range.start.to_point(&display_map));
2171 end = buffer.anchor_before(range.end.to_point(&display_map));
2172 mode = SelectMode::Word(start..end);
2173 auto_scroll = true;
2174 }
2175 3 => {
2176 let position = display_map
2177 .clip_point(position, Bias::Left)
2178 .to_point(&display_map);
2179 let line_start = display_map.prev_line_boundary(position).0;
2180 let next_line_start = buffer.clip_point(
2181 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2182 Bias::Left,
2183 );
2184 start = buffer.anchor_before(line_start);
2185 end = buffer.anchor_before(next_line_start);
2186 mode = SelectMode::Line(start..end);
2187 auto_scroll = true;
2188 }
2189 _ => {
2190 start = buffer.anchor_before(0);
2191 end = buffer.anchor_before(buffer.len());
2192 mode = SelectMode::All;
2193 auto_scroll = false;
2194 }
2195 }
2196 auto_scroll &= EditorSettings::get_global(cx).autoscroll_on_clicks;
2197
2198 let point_to_delete: Option<usize> = {
2199 let selected_points: Vec<Selection<Point>> =
2200 self.selections.disjoint_in_range(start..end, cx);
2201
2202 if !add || click_count > 1 {
2203 None
2204 } else if !selected_points.is_empty() {
2205 Some(selected_points[0].id)
2206 } else {
2207 let clicked_point_already_selected =
2208 self.selections.disjoint.iter().find(|selection| {
2209 selection.start.to_point(buffer) == start.to_point(buffer)
2210 || selection.end.to_point(buffer) == end.to_point(buffer)
2211 });
2212
2213 clicked_point_already_selected.map(|selection| selection.id)
2214 }
2215 };
2216
2217 let selections_count = self.selections.count();
2218
2219 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2220 if let Some(point_to_delete) = point_to_delete {
2221 s.delete(point_to_delete);
2222
2223 if selections_count == 1 {
2224 s.set_pending_anchor_range(start..end, mode);
2225 }
2226 } else {
2227 if !add {
2228 s.clear_disjoint();
2229 } else if click_count > 1 {
2230 s.delete(newest_selection.id)
2231 }
2232
2233 s.set_pending_anchor_range(start..end, mode);
2234 }
2235 });
2236 }
2237
2238 fn begin_columnar_selection(
2239 &mut self,
2240 position: DisplayPoint,
2241 goal_column: u32,
2242 reset: bool,
2243 cx: &mut ViewContext<Self>,
2244 ) {
2245 if !self.focus_handle.is_focused(cx) {
2246 self.last_focused_descendant = None;
2247 cx.focus(&self.focus_handle);
2248 }
2249
2250 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2251
2252 if reset {
2253 let pointer_position = display_map
2254 .buffer_snapshot
2255 .anchor_before(position.to_point(&display_map));
2256
2257 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2258 s.clear_disjoint();
2259 s.set_pending_anchor_range(
2260 pointer_position..pointer_position,
2261 SelectMode::Character,
2262 );
2263 });
2264 }
2265
2266 let tail = self.selections.newest::<Point>(cx).tail();
2267 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2268
2269 if !reset {
2270 self.select_columns(
2271 tail.to_display_point(&display_map),
2272 position,
2273 goal_column,
2274 &display_map,
2275 cx,
2276 );
2277 }
2278 }
2279
2280 fn update_selection(
2281 &mut self,
2282 position: DisplayPoint,
2283 goal_column: u32,
2284 scroll_delta: gpui::Point<f32>,
2285 cx: &mut ViewContext<Self>,
2286 ) {
2287 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2288
2289 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2290 let tail = tail.to_display_point(&display_map);
2291 self.select_columns(tail, position, goal_column, &display_map, cx);
2292 } else if let Some(mut pending) = self.selections.pending_anchor() {
2293 let buffer = self.buffer.read(cx).snapshot(cx);
2294 let head;
2295 let tail;
2296 let mode = self.selections.pending_mode().unwrap();
2297 match &mode {
2298 SelectMode::Character => {
2299 head = position.to_point(&display_map);
2300 tail = pending.tail().to_point(&buffer);
2301 }
2302 SelectMode::Word(original_range) => {
2303 let original_display_range = original_range.start.to_display_point(&display_map)
2304 ..original_range.end.to_display_point(&display_map);
2305 let original_buffer_range = original_display_range.start.to_point(&display_map)
2306 ..original_display_range.end.to_point(&display_map);
2307 if movement::is_inside_word(&display_map, position)
2308 || original_display_range.contains(&position)
2309 {
2310 let word_range = movement::surrounding_word(&display_map, position);
2311 if word_range.start < original_display_range.start {
2312 head = word_range.start.to_point(&display_map);
2313 } else {
2314 head = word_range.end.to_point(&display_map);
2315 }
2316 } else {
2317 head = position.to_point(&display_map);
2318 }
2319
2320 if head <= original_buffer_range.start {
2321 tail = original_buffer_range.end;
2322 } else {
2323 tail = original_buffer_range.start;
2324 }
2325 }
2326 SelectMode::Line(original_range) => {
2327 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2328
2329 let position = display_map
2330 .clip_point(position, Bias::Left)
2331 .to_point(&display_map);
2332 let line_start = display_map.prev_line_boundary(position).0;
2333 let next_line_start = buffer.clip_point(
2334 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2335 Bias::Left,
2336 );
2337
2338 if line_start < original_range.start {
2339 head = line_start
2340 } else {
2341 head = next_line_start
2342 }
2343
2344 if head <= original_range.start {
2345 tail = original_range.end;
2346 } else {
2347 tail = original_range.start;
2348 }
2349 }
2350 SelectMode::All => {
2351 return;
2352 }
2353 };
2354
2355 if head < tail {
2356 pending.start = buffer.anchor_before(head);
2357 pending.end = buffer.anchor_before(tail);
2358 pending.reversed = true;
2359 } else {
2360 pending.start = buffer.anchor_before(tail);
2361 pending.end = buffer.anchor_before(head);
2362 pending.reversed = false;
2363 }
2364
2365 self.change_selections(None, cx, |s| {
2366 s.set_pending(pending, mode);
2367 });
2368 } else {
2369 log::error!("update_selection dispatched with no pending selection");
2370 return;
2371 }
2372
2373 self.apply_scroll_delta(scroll_delta, cx);
2374 cx.notify();
2375 }
2376
2377 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2378 self.columnar_selection_tail.take();
2379 if self.selections.pending_anchor().is_some() {
2380 let selections = self.selections.all::<usize>(cx);
2381 self.change_selections(None, cx, |s| {
2382 s.select(selections);
2383 s.clear_pending();
2384 });
2385 }
2386 }
2387
2388 fn select_columns(
2389 &mut self,
2390 tail: DisplayPoint,
2391 head: DisplayPoint,
2392 goal_column: u32,
2393 display_map: &DisplaySnapshot,
2394 cx: &mut ViewContext<Self>,
2395 ) {
2396 let start_row = cmp::min(tail.row(), head.row());
2397 let end_row = cmp::max(tail.row(), head.row());
2398 let start_column = cmp::min(tail.column(), goal_column);
2399 let end_column = cmp::max(tail.column(), goal_column);
2400 let reversed = start_column < tail.column();
2401
2402 let selection_ranges = (start_row.0..=end_row.0)
2403 .map(DisplayRow)
2404 .filter_map(|row| {
2405 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2406 let start = display_map
2407 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2408 .to_point(display_map);
2409 let end = display_map
2410 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2411 .to_point(display_map);
2412 if reversed {
2413 Some(end..start)
2414 } else {
2415 Some(start..end)
2416 }
2417 } else {
2418 None
2419 }
2420 })
2421 .collect::<Vec<_>>();
2422
2423 self.change_selections(None, cx, |s| {
2424 s.select_ranges(selection_ranges);
2425 });
2426 cx.notify();
2427 }
2428
2429 pub fn has_pending_nonempty_selection(&self) -> bool {
2430 let pending_nonempty_selection = match self.selections.pending_anchor() {
2431 Some(Selection { start, end, .. }) => start != end,
2432 None => false,
2433 };
2434
2435 pending_nonempty_selection
2436 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2437 }
2438
2439 pub fn has_pending_selection(&self) -> bool {
2440 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2441 }
2442
2443 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2444 if self.clear_expanded_diff_hunks(cx) {
2445 cx.notify();
2446 return;
2447 }
2448 if self.dismiss_menus_and_popups(true, cx) {
2449 return;
2450 }
2451
2452 if self.mode == EditorMode::Full
2453 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
2454 {
2455 return;
2456 }
2457
2458 cx.propagate();
2459 }
2460
2461 pub fn dismiss_menus_and_popups(
2462 &mut self,
2463 should_report_inline_completion_event: bool,
2464 cx: &mut ViewContext<Self>,
2465 ) -> bool {
2466 if self.take_rename(false, cx).is_some() {
2467 return true;
2468 }
2469
2470 if hide_hover(self, cx) {
2471 return true;
2472 }
2473
2474 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2475 return true;
2476 }
2477
2478 if self.hide_context_menu(cx).is_some() {
2479 if self.show_inline_completions_in_menu(cx) && self.has_active_inline_completion() {
2480 self.update_visible_inline_completion(cx);
2481 }
2482 return true;
2483 }
2484
2485 if self.mouse_context_menu.take().is_some() {
2486 return true;
2487 }
2488
2489 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2490 return true;
2491 }
2492
2493 if self.snippet_stack.pop().is_some() {
2494 return true;
2495 }
2496
2497 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
2498 self.dismiss_diagnostics(cx);
2499 return true;
2500 }
2501
2502 false
2503 }
2504
2505 fn linked_editing_ranges_for(
2506 &self,
2507 selection: Range<text::Anchor>,
2508 cx: &AppContext,
2509 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2510 if self.linked_edit_ranges.is_empty() {
2511 return None;
2512 }
2513 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2514 selection.end.buffer_id.and_then(|end_buffer_id| {
2515 if selection.start.buffer_id != Some(end_buffer_id) {
2516 return None;
2517 }
2518 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2519 let snapshot = buffer.read(cx).snapshot();
2520 self.linked_edit_ranges
2521 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2522 .map(|ranges| (ranges, snapshot, buffer))
2523 })?;
2524 use text::ToOffset as TO;
2525 // find offset from the start of current range to current cursor position
2526 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2527
2528 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2529 let start_difference = start_offset - start_byte_offset;
2530 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2531 let end_difference = end_offset - start_byte_offset;
2532 // Current range has associated linked ranges.
2533 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2534 for range in linked_ranges.iter() {
2535 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2536 let end_offset = start_offset + end_difference;
2537 let start_offset = start_offset + start_difference;
2538 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2539 continue;
2540 }
2541 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
2542 if s.start.buffer_id != selection.start.buffer_id
2543 || s.end.buffer_id != selection.end.buffer_id
2544 {
2545 return false;
2546 }
2547 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
2548 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
2549 }) {
2550 continue;
2551 }
2552 let start = buffer_snapshot.anchor_after(start_offset);
2553 let end = buffer_snapshot.anchor_after(end_offset);
2554 linked_edits
2555 .entry(buffer.clone())
2556 .or_default()
2557 .push(start..end);
2558 }
2559 Some(linked_edits)
2560 }
2561
2562 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2563 let text: Arc<str> = text.into();
2564
2565 if self.read_only(cx) {
2566 return;
2567 }
2568
2569 let selections = self.selections.all_adjusted(cx);
2570 let mut bracket_inserted = false;
2571 let mut edits = Vec::new();
2572 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2573 let mut new_selections = Vec::with_capacity(selections.len());
2574 let mut new_autoclose_regions = Vec::new();
2575 let snapshot = self.buffer.read(cx).read(cx);
2576
2577 for (selection, autoclose_region) in
2578 self.selections_with_autoclose_regions(selections, &snapshot)
2579 {
2580 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2581 // Determine if the inserted text matches the opening or closing
2582 // bracket of any of this language's bracket pairs.
2583 let mut bracket_pair = None;
2584 let mut is_bracket_pair_start = false;
2585 let mut is_bracket_pair_end = false;
2586 if !text.is_empty() {
2587 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2588 // and they are removing the character that triggered IME popup.
2589 for (pair, enabled) in scope.brackets() {
2590 if !pair.close && !pair.surround {
2591 continue;
2592 }
2593
2594 if enabled && pair.start.ends_with(text.as_ref()) {
2595 let prefix_len = pair.start.len() - text.len();
2596 let preceding_text_matches_prefix = prefix_len == 0
2597 || (selection.start.column >= (prefix_len as u32)
2598 && snapshot.contains_str_at(
2599 Point::new(
2600 selection.start.row,
2601 selection.start.column - (prefix_len as u32),
2602 ),
2603 &pair.start[..prefix_len],
2604 ));
2605 if preceding_text_matches_prefix {
2606 bracket_pair = Some(pair.clone());
2607 is_bracket_pair_start = true;
2608 break;
2609 }
2610 }
2611 if pair.end.as_str() == text.as_ref() {
2612 bracket_pair = Some(pair.clone());
2613 is_bracket_pair_end = true;
2614 break;
2615 }
2616 }
2617 }
2618
2619 if let Some(bracket_pair) = bracket_pair {
2620 let snapshot_settings = snapshot.settings_at(selection.start, cx);
2621 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
2622 let auto_surround =
2623 self.use_auto_surround && snapshot_settings.use_auto_surround;
2624 if selection.is_empty() {
2625 if is_bracket_pair_start {
2626 // If the inserted text is a suffix of an opening bracket and the
2627 // selection is preceded by the rest of the opening bracket, then
2628 // insert the closing bracket.
2629 let following_text_allows_autoclose = snapshot
2630 .chars_at(selection.start)
2631 .next()
2632 .map_or(true, |c| scope.should_autoclose_before(c));
2633
2634 let is_closing_quote = if bracket_pair.end == bracket_pair.start
2635 && bracket_pair.start.len() == 1
2636 {
2637 let target = bracket_pair.start.chars().next().unwrap();
2638 let current_line_count = snapshot
2639 .reversed_chars_at(selection.start)
2640 .take_while(|&c| c != '\n')
2641 .filter(|&c| c == target)
2642 .count();
2643 current_line_count % 2 == 1
2644 } else {
2645 false
2646 };
2647
2648 if autoclose
2649 && bracket_pair.close
2650 && following_text_allows_autoclose
2651 && !is_closing_quote
2652 {
2653 let anchor = snapshot.anchor_before(selection.end);
2654 new_selections.push((selection.map(|_| anchor), text.len()));
2655 new_autoclose_regions.push((
2656 anchor,
2657 text.len(),
2658 selection.id,
2659 bracket_pair.clone(),
2660 ));
2661 edits.push((
2662 selection.range(),
2663 format!("{}{}", text, bracket_pair.end).into(),
2664 ));
2665 bracket_inserted = true;
2666 continue;
2667 }
2668 }
2669
2670 if let Some(region) = autoclose_region {
2671 // If the selection is followed by an auto-inserted closing bracket,
2672 // then don't insert that closing bracket again; just move the selection
2673 // past the closing bracket.
2674 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2675 && text.as_ref() == region.pair.end.as_str();
2676 if should_skip {
2677 let anchor = snapshot.anchor_after(selection.end);
2678 new_selections
2679 .push((selection.map(|_| anchor), region.pair.end.len()));
2680 continue;
2681 }
2682 }
2683
2684 let always_treat_brackets_as_autoclosed = snapshot
2685 .settings_at(selection.start, cx)
2686 .always_treat_brackets_as_autoclosed;
2687 if always_treat_brackets_as_autoclosed
2688 && is_bracket_pair_end
2689 && snapshot.contains_str_at(selection.end, text.as_ref())
2690 {
2691 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2692 // and the inserted text is a closing bracket and the selection is followed
2693 // by the closing bracket then move the selection past the closing bracket.
2694 let anchor = snapshot.anchor_after(selection.end);
2695 new_selections.push((selection.map(|_| anchor), text.len()));
2696 continue;
2697 }
2698 }
2699 // If an opening bracket is 1 character long and is typed while
2700 // text is selected, then surround that text with the bracket pair.
2701 else if auto_surround
2702 && bracket_pair.surround
2703 && is_bracket_pair_start
2704 && bracket_pair.start.chars().count() == 1
2705 {
2706 edits.push((selection.start..selection.start, text.clone()));
2707 edits.push((
2708 selection.end..selection.end,
2709 bracket_pair.end.as_str().into(),
2710 ));
2711 bracket_inserted = true;
2712 new_selections.push((
2713 Selection {
2714 id: selection.id,
2715 start: snapshot.anchor_after(selection.start),
2716 end: snapshot.anchor_before(selection.end),
2717 reversed: selection.reversed,
2718 goal: selection.goal,
2719 },
2720 0,
2721 ));
2722 continue;
2723 }
2724 }
2725 }
2726
2727 if self.auto_replace_emoji_shortcode
2728 && selection.is_empty()
2729 && text.as_ref().ends_with(':')
2730 {
2731 if let Some(possible_emoji_short_code) =
2732 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2733 {
2734 if !possible_emoji_short_code.is_empty() {
2735 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2736 let emoji_shortcode_start = Point::new(
2737 selection.start.row,
2738 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2739 );
2740
2741 // Remove shortcode from buffer
2742 edits.push((
2743 emoji_shortcode_start..selection.start,
2744 "".to_string().into(),
2745 ));
2746 new_selections.push((
2747 Selection {
2748 id: selection.id,
2749 start: snapshot.anchor_after(emoji_shortcode_start),
2750 end: snapshot.anchor_before(selection.start),
2751 reversed: selection.reversed,
2752 goal: selection.goal,
2753 },
2754 0,
2755 ));
2756
2757 // Insert emoji
2758 let selection_start_anchor = snapshot.anchor_after(selection.start);
2759 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2760 edits.push((selection.start..selection.end, emoji.to_string().into()));
2761
2762 continue;
2763 }
2764 }
2765 }
2766 }
2767
2768 // If not handling any auto-close operation, then just replace the selected
2769 // text with the given input and move the selection to the end of the
2770 // newly inserted text.
2771 let anchor = snapshot.anchor_after(selection.end);
2772 if !self.linked_edit_ranges.is_empty() {
2773 let start_anchor = snapshot.anchor_before(selection.start);
2774
2775 let is_word_char = text.chars().next().map_or(true, |char| {
2776 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
2777 classifier.is_word(char)
2778 });
2779
2780 if is_word_char {
2781 if let Some(ranges) = self
2782 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
2783 {
2784 for (buffer, edits) in ranges {
2785 linked_edits
2786 .entry(buffer.clone())
2787 .or_default()
2788 .extend(edits.into_iter().map(|range| (range, text.clone())));
2789 }
2790 }
2791 }
2792 }
2793
2794 new_selections.push((selection.map(|_| anchor), 0));
2795 edits.push((selection.start..selection.end, text.clone()));
2796 }
2797
2798 drop(snapshot);
2799
2800 self.transact(cx, |this, cx| {
2801 this.buffer.update(cx, |buffer, cx| {
2802 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2803 });
2804 for (buffer, edits) in linked_edits {
2805 buffer.update(cx, |buffer, cx| {
2806 let snapshot = buffer.snapshot();
2807 let edits = edits
2808 .into_iter()
2809 .map(|(range, text)| {
2810 use text::ToPoint as TP;
2811 let end_point = TP::to_point(&range.end, &snapshot);
2812 let start_point = TP::to_point(&range.start, &snapshot);
2813 (start_point..end_point, text)
2814 })
2815 .sorted_by_key(|(range, _)| range.start)
2816 .collect::<Vec<_>>();
2817 buffer.edit(edits, None, cx);
2818 })
2819 }
2820 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2821 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2822 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
2823 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
2824 .zip(new_selection_deltas)
2825 .map(|(selection, delta)| Selection {
2826 id: selection.id,
2827 start: selection.start + delta,
2828 end: selection.end + delta,
2829 reversed: selection.reversed,
2830 goal: SelectionGoal::None,
2831 })
2832 .collect::<Vec<_>>();
2833
2834 let mut i = 0;
2835 for (position, delta, selection_id, pair) in new_autoclose_regions {
2836 let position = position.to_offset(&map.buffer_snapshot) + delta;
2837 let start = map.buffer_snapshot.anchor_before(position);
2838 let end = map.buffer_snapshot.anchor_after(position);
2839 while let Some(existing_state) = this.autoclose_regions.get(i) {
2840 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
2841 Ordering::Less => i += 1,
2842 Ordering::Greater => break,
2843 Ordering::Equal => {
2844 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
2845 Ordering::Less => i += 1,
2846 Ordering::Equal => break,
2847 Ordering::Greater => break,
2848 }
2849 }
2850 }
2851 }
2852 this.autoclose_regions.insert(
2853 i,
2854 AutocloseRegion {
2855 selection_id,
2856 range: start..end,
2857 pair,
2858 },
2859 );
2860 }
2861
2862 let had_active_inline_completion = this.has_active_inline_completion();
2863 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
2864 s.select(new_selections)
2865 });
2866
2867 if !bracket_inserted {
2868 if let Some(on_type_format_task) =
2869 this.trigger_on_type_formatting(text.to_string(), cx)
2870 {
2871 on_type_format_task.detach_and_log_err(cx);
2872 }
2873 }
2874
2875 let editor_settings = EditorSettings::get_global(cx);
2876 if bracket_inserted
2877 && (editor_settings.auto_signature_help
2878 || editor_settings.show_signature_help_after_edits)
2879 {
2880 this.show_signature_help(&ShowSignatureHelp, cx);
2881 }
2882
2883 let trigger_in_words =
2884 this.show_inline_completions_in_menu(cx) || !had_active_inline_completion;
2885 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2886 linked_editing_ranges::refresh_linked_ranges(this, cx);
2887 this.refresh_inline_completion(true, false, cx);
2888 });
2889 }
2890
2891 fn find_possible_emoji_shortcode_at_position(
2892 snapshot: &MultiBufferSnapshot,
2893 position: Point,
2894 ) -> Option<String> {
2895 let mut chars = Vec::new();
2896 let mut found_colon = false;
2897 for char in snapshot.reversed_chars_at(position).take(100) {
2898 // Found a possible emoji shortcode in the middle of the buffer
2899 if found_colon {
2900 if char.is_whitespace() {
2901 chars.reverse();
2902 return Some(chars.iter().collect());
2903 }
2904 // If the previous character is not a whitespace, we are in the middle of a word
2905 // and we only want to complete the shortcode if the word is made up of other emojis
2906 let mut containing_word = String::new();
2907 for ch in snapshot
2908 .reversed_chars_at(position)
2909 .skip(chars.len() + 1)
2910 .take(100)
2911 {
2912 if ch.is_whitespace() {
2913 break;
2914 }
2915 containing_word.push(ch);
2916 }
2917 let containing_word = containing_word.chars().rev().collect::<String>();
2918 if util::word_consists_of_emojis(containing_word.as_str()) {
2919 chars.reverse();
2920 return Some(chars.iter().collect());
2921 }
2922 }
2923
2924 if char.is_whitespace() || !char.is_ascii() {
2925 return None;
2926 }
2927 if char == ':' {
2928 found_colon = true;
2929 } else {
2930 chars.push(char);
2931 }
2932 }
2933 // Found a possible emoji shortcode at the beginning of the buffer
2934 chars.reverse();
2935 Some(chars.iter().collect())
2936 }
2937
2938 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2939 self.transact(cx, |this, cx| {
2940 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2941 let selections = this.selections.all::<usize>(cx);
2942 let multi_buffer = this.buffer.read(cx);
2943 let buffer = multi_buffer.snapshot(cx);
2944 selections
2945 .iter()
2946 .map(|selection| {
2947 let start_point = selection.start.to_point(&buffer);
2948 let mut indent =
2949 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
2950 indent.len = cmp::min(indent.len, start_point.column);
2951 let start = selection.start;
2952 let end = selection.end;
2953 let selection_is_empty = start == end;
2954 let language_scope = buffer.language_scope_at(start);
2955 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2956 &language_scope
2957 {
2958 let leading_whitespace_len = buffer
2959 .reversed_chars_at(start)
2960 .take_while(|c| c.is_whitespace() && *c != '\n')
2961 .map(|c| c.len_utf8())
2962 .sum::<usize>();
2963
2964 let trailing_whitespace_len = buffer
2965 .chars_at(end)
2966 .take_while(|c| c.is_whitespace() && *c != '\n')
2967 .map(|c| c.len_utf8())
2968 .sum::<usize>();
2969
2970 let insert_extra_newline =
2971 language.brackets().any(|(pair, enabled)| {
2972 let pair_start = pair.start.trim_end();
2973 let pair_end = pair.end.trim_start();
2974
2975 enabled
2976 && pair.newline
2977 && buffer.contains_str_at(
2978 end + trailing_whitespace_len,
2979 pair_end,
2980 )
2981 && buffer.contains_str_at(
2982 (start - leading_whitespace_len)
2983 .saturating_sub(pair_start.len()),
2984 pair_start,
2985 )
2986 });
2987
2988 // Comment extension on newline is allowed only for cursor selections
2989 let comment_delimiter = maybe!({
2990 if !selection_is_empty {
2991 return None;
2992 }
2993
2994 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
2995 return None;
2996 }
2997
2998 let delimiters = language.line_comment_prefixes();
2999 let max_len_of_delimiter =
3000 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3001 let (snapshot, range) =
3002 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3003
3004 let mut index_of_first_non_whitespace = 0;
3005 let comment_candidate = snapshot
3006 .chars_for_range(range)
3007 .skip_while(|c| {
3008 let should_skip = c.is_whitespace();
3009 if should_skip {
3010 index_of_first_non_whitespace += 1;
3011 }
3012 should_skip
3013 })
3014 .take(max_len_of_delimiter)
3015 .collect::<String>();
3016 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3017 comment_candidate.starts_with(comment_prefix.as_ref())
3018 })?;
3019 let cursor_is_placed_after_comment_marker =
3020 index_of_first_non_whitespace + comment_prefix.len()
3021 <= start_point.column as usize;
3022 if cursor_is_placed_after_comment_marker {
3023 Some(comment_prefix.clone())
3024 } else {
3025 None
3026 }
3027 });
3028 (comment_delimiter, insert_extra_newline)
3029 } else {
3030 (None, false)
3031 };
3032
3033 let capacity_for_delimiter = comment_delimiter
3034 .as_deref()
3035 .map(str::len)
3036 .unwrap_or_default();
3037 let mut new_text =
3038 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3039 new_text.push('\n');
3040 new_text.extend(indent.chars());
3041 if let Some(delimiter) = &comment_delimiter {
3042 new_text.push_str(delimiter);
3043 }
3044 if insert_extra_newline {
3045 new_text = new_text.repeat(2);
3046 }
3047
3048 let anchor = buffer.anchor_after(end);
3049 let new_selection = selection.map(|_| anchor);
3050 (
3051 (start..end, new_text),
3052 (insert_extra_newline, new_selection),
3053 )
3054 })
3055 .unzip()
3056 };
3057
3058 this.edit_with_autoindent(edits, cx);
3059 let buffer = this.buffer.read(cx).snapshot(cx);
3060 let new_selections = selection_fixup_info
3061 .into_iter()
3062 .map(|(extra_newline_inserted, new_selection)| {
3063 let mut cursor = new_selection.end.to_point(&buffer);
3064 if extra_newline_inserted {
3065 cursor.row -= 1;
3066 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3067 }
3068 new_selection.map(|_| cursor)
3069 })
3070 .collect();
3071
3072 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3073 this.refresh_inline_completion(true, false, cx);
3074 });
3075 }
3076
3077 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3078 let buffer = self.buffer.read(cx);
3079 let snapshot = buffer.snapshot(cx);
3080
3081 let mut edits = Vec::new();
3082 let mut rows = Vec::new();
3083
3084 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3085 let cursor = selection.head();
3086 let row = cursor.row;
3087
3088 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3089
3090 let newline = "\n".to_string();
3091 edits.push((start_of_line..start_of_line, newline));
3092
3093 rows.push(row + rows_inserted as u32);
3094 }
3095
3096 self.transact(cx, |editor, cx| {
3097 editor.edit(edits, cx);
3098
3099 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3100 let mut index = 0;
3101 s.move_cursors_with(|map, _, _| {
3102 let row = rows[index];
3103 index += 1;
3104
3105 let point = Point::new(row, 0);
3106 let boundary = map.next_line_boundary(point).1;
3107 let clipped = map.clip_point(boundary, Bias::Left);
3108
3109 (clipped, SelectionGoal::None)
3110 });
3111 });
3112
3113 let mut indent_edits = Vec::new();
3114 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3115 for row in rows {
3116 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3117 for (row, indent) in indents {
3118 if indent.len == 0 {
3119 continue;
3120 }
3121
3122 let text = match indent.kind {
3123 IndentKind::Space => " ".repeat(indent.len as usize),
3124 IndentKind::Tab => "\t".repeat(indent.len as usize),
3125 };
3126 let point = Point::new(row.0, 0);
3127 indent_edits.push((point..point, text));
3128 }
3129 }
3130 editor.edit(indent_edits, cx);
3131 });
3132 }
3133
3134 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3135 let buffer = self.buffer.read(cx);
3136 let snapshot = buffer.snapshot(cx);
3137
3138 let mut edits = Vec::new();
3139 let mut rows = Vec::new();
3140 let mut rows_inserted = 0;
3141
3142 for selection in self.selections.all_adjusted(cx) {
3143 let cursor = selection.head();
3144 let row = cursor.row;
3145
3146 let point = Point::new(row + 1, 0);
3147 let start_of_line = snapshot.clip_point(point, Bias::Left);
3148
3149 let newline = "\n".to_string();
3150 edits.push((start_of_line..start_of_line, newline));
3151
3152 rows_inserted += 1;
3153 rows.push(row + rows_inserted);
3154 }
3155
3156 self.transact(cx, |editor, cx| {
3157 editor.edit(edits, cx);
3158
3159 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3160 let mut index = 0;
3161 s.move_cursors_with(|map, _, _| {
3162 let row = rows[index];
3163 index += 1;
3164
3165 let point = Point::new(row, 0);
3166 let boundary = map.next_line_boundary(point).1;
3167 let clipped = map.clip_point(boundary, Bias::Left);
3168
3169 (clipped, SelectionGoal::None)
3170 });
3171 });
3172
3173 let mut indent_edits = Vec::new();
3174 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3175 for row in rows {
3176 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3177 for (row, indent) in indents {
3178 if indent.len == 0 {
3179 continue;
3180 }
3181
3182 let text = match indent.kind {
3183 IndentKind::Space => " ".repeat(indent.len as usize),
3184 IndentKind::Tab => "\t".repeat(indent.len as usize),
3185 };
3186 let point = Point::new(row.0, 0);
3187 indent_edits.push((point..point, text));
3188 }
3189 }
3190 editor.edit(indent_edits, cx);
3191 });
3192 }
3193
3194 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3195 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3196 original_indent_columns: Vec::new(),
3197 });
3198 self.insert_with_autoindent_mode(text, autoindent, cx);
3199 }
3200
3201 fn insert_with_autoindent_mode(
3202 &mut self,
3203 text: &str,
3204 autoindent_mode: Option<AutoindentMode>,
3205 cx: &mut ViewContext<Self>,
3206 ) {
3207 if self.read_only(cx) {
3208 return;
3209 }
3210
3211 let text: Arc<str> = text.into();
3212 self.transact(cx, |this, cx| {
3213 let old_selections = this.selections.all_adjusted(cx);
3214 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3215 let anchors = {
3216 let snapshot = buffer.read(cx);
3217 old_selections
3218 .iter()
3219 .map(|s| {
3220 let anchor = snapshot.anchor_after(s.head());
3221 s.map(|_| anchor)
3222 })
3223 .collect::<Vec<_>>()
3224 };
3225 buffer.edit(
3226 old_selections
3227 .iter()
3228 .map(|s| (s.start..s.end, text.clone())),
3229 autoindent_mode,
3230 cx,
3231 );
3232 anchors
3233 });
3234
3235 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3236 s.select_anchors(selection_anchors);
3237 })
3238 });
3239 }
3240
3241 fn trigger_completion_on_input(
3242 &mut self,
3243 text: &str,
3244 trigger_in_words: bool,
3245 cx: &mut ViewContext<Self>,
3246 ) {
3247 if self.is_completion_trigger(text, trigger_in_words, cx) {
3248 self.show_completions(
3249 &ShowCompletions {
3250 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3251 },
3252 cx,
3253 );
3254 } else {
3255 self.hide_context_menu(cx);
3256 }
3257 }
3258
3259 fn is_completion_trigger(
3260 &self,
3261 text: &str,
3262 trigger_in_words: bool,
3263 cx: &mut ViewContext<Self>,
3264 ) -> bool {
3265 let position = self.selections.newest_anchor().head();
3266 let multibuffer = self.buffer.read(cx);
3267 let Some(buffer) = position
3268 .buffer_id
3269 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3270 else {
3271 return false;
3272 };
3273
3274 if let Some(completion_provider) = &self.completion_provider {
3275 completion_provider.is_completion_trigger(
3276 &buffer,
3277 position.text_anchor,
3278 text,
3279 trigger_in_words,
3280 cx,
3281 )
3282 } else {
3283 false
3284 }
3285 }
3286
3287 /// If any empty selections is touching the start of its innermost containing autoclose
3288 /// region, expand it to select the brackets.
3289 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3290 let selections = self.selections.all::<usize>(cx);
3291 let buffer = self.buffer.read(cx).read(cx);
3292 let new_selections = self
3293 .selections_with_autoclose_regions(selections, &buffer)
3294 .map(|(mut selection, region)| {
3295 if !selection.is_empty() {
3296 return selection;
3297 }
3298
3299 if let Some(region) = region {
3300 let mut range = region.range.to_offset(&buffer);
3301 if selection.start == range.start && range.start >= region.pair.start.len() {
3302 range.start -= region.pair.start.len();
3303 if buffer.contains_str_at(range.start, ®ion.pair.start)
3304 && buffer.contains_str_at(range.end, ®ion.pair.end)
3305 {
3306 range.end += region.pair.end.len();
3307 selection.start = range.start;
3308 selection.end = range.end;
3309
3310 return selection;
3311 }
3312 }
3313 }
3314
3315 let always_treat_brackets_as_autoclosed = buffer
3316 .settings_at(selection.start, cx)
3317 .always_treat_brackets_as_autoclosed;
3318
3319 if !always_treat_brackets_as_autoclosed {
3320 return selection;
3321 }
3322
3323 if let Some(scope) = buffer.language_scope_at(selection.start) {
3324 for (pair, enabled) in scope.brackets() {
3325 if !enabled || !pair.close {
3326 continue;
3327 }
3328
3329 if buffer.contains_str_at(selection.start, &pair.end) {
3330 let pair_start_len = pair.start.len();
3331 if buffer.contains_str_at(
3332 selection.start.saturating_sub(pair_start_len),
3333 &pair.start,
3334 ) {
3335 selection.start -= pair_start_len;
3336 selection.end += pair.end.len();
3337
3338 return selection;
3339 }
3340 }
3341 }
3342 }
3343
3344 selection
3345 })
3346 .collect();
3347
3348 drop(buffer);
3349 self.change_selections(None, cx, |selections| selections.select(new_selections));
3350 }
3351
3352 /// Iterate the given selections, and for each one, find the smallest surrounding
3353 /// autoclose region. This uses the ordering of the selections and the autoclose
3354 /// regions to avoid repeated comparisons.
3355 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3356 &'a self,
3357 selections: impl IntoIterator<Item = Selection<D>>,
3358 buffer: &'a MultiBufferSnapshot,
3359 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3360 let mut i = 0;
3361 let mut regions = self.autoclose_regions.as_slice();
3362 selections.into_iter().map(move |selection| {
3363 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3364
3365 let mut enclosing = None;
3366 while let Some(pair_state) = regions.get(i) {
3367 if pair_state.range.end.to_offset(buffer) < range.start {
3368 regions = ®ions[i + 1..];
3369 i = 0;
3370 } else if pair_state.range.start.to_offset(buffer) > range.end {
3371 break;
3372 } else {
3373 if pair_state.selection_id == selection.id {
3374 enclosing = Some(pair_state);
3375 }
3376 i += 1;
3377 }
3378 }
3379
3380 (selection, enclosing)
3381 })
3382 }
3383
3384 /// Remove any autoclose regions that no longer contain their selection.
3385 fn invalidate_autoclose_regions(
3386 &mut self,
3387 mut selections: &[Selection<Anchor>],
3388 buffer: &MultiBufferSnapshot,
3389 ) {
3390 self.autoclose_regions.retain(|state| {
3391 let mut i = 0;
3392 while let Some(selection) = selections.get(i) {
3393 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3394 selections = &selections[1..];
3395 continue;
3396 }
3397 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3398 break;
3399 }
3400 if selection.id == state.selection_id {
3401 return true;
3402 } else {
3403 i += 1;
3404 }
3405 }
3406 false
3407 });
3408 }
3409
3410 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3411 let offset = position.to_offset(buffer);
3412 let (word_range, kind) = buffer.surrounding_word(offset, true);
3413 if offset > word_range.start && kind == Some(CharKind::Word) {
3414 Some(
3415 buffer
3416 .text_for_range(word_range.start..offset)
3417 .collect::<String>(),
3418 )
3419 } else {
3420 None
3421 }
3422 }
3423
3424 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3425 self.refresh_inlay_hints(
3426 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3427 cx,
3428 );
3429 }
3430
3431 pub fn inlay_hints_enabled(&self) -> bool {
3432 self.inlay_hint_cache.enabled
3433 }
3434
3435 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3436 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
3437 return;
3438 }
3439
3440 let reason_description = reason.description();
3441 let ignore_debounce = matches!(
3442 reason,
3443 InlayHintRefreshReason::SettingsChange(_)
3444 | InlayHintRefreshReason::Toggle(_)
3445 | InlayHintRefreshReason::ExcerptsRemoved(_)
3446 );
3447 let (invalidate_cache, required_languages) = match reason {
3448 InlayHintRefreshReason::Toggle(enabled) => {
3449 self.inlay_hint_cache.enabled = enabled;
3450 if enabled {
3451 (InvalidationStrategy::RefreshRequested, None)
3452 } else {
3453 self.inlay_hint_cache.clear();
3454 self.splice_inlays(
3455 self.visible_inlay_hints(cx)
3456 .iter()
3457 .map(|inlay| inlay.id)
3458 .collect(),
3459 Vec::new(),
3460 cx,
3461 );
3462 return;
3463 }
3464 }
3465 InlayHintRefreshReason::SettingsChange(new_settings) => {
3466 match self.inlay_hint_cache.update_settings(
3467 &self.buffer,
3468 new_settings,
3469 self.visible_inlay_hints(cx),
3470 cx,
3471 ) {
3472 ControlFlow::Break(Some(InlaySplice {
3473 to_remove,
3474 to_insert,
3475 })) => {
3476 self.splice_inlays(to_remove, to_insert, cx);
3477 return;
3478 }
3479 ControlFlow::Break(None) => return,
3480 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3481 }
3482 }
3483 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3484 if let Some(InlaySplice {
3485 to_remove,
3486 to_insert,
3487 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3488 {
3489 self.splice_inlays(to_remove, to_insert, cx);
3490 }
3491 return;
3492 }
3493 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3494 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3495 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3496 }
3497 InlayHintRefreshReason::RefreshRequested => {
3498 (InvalidationStrategy::RefreshRequested, None)
3499 }
3500 };
3501
3502 if let Some(InlaySplice {
3503 to_remove,
3504 to_insert,
3505 }) = self.inlay_hint_cache.spawn_hint_refresh(
3506 reason_description,
3507 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3508 invalidate_cache,
3509 ignore_debounce,
3510 cx,
3511 ) {
3512 self.splice_inlays(to_remove, to_insert, cx);
3513 }
3514 }
3515
3516 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3517 self.display_map
3518 .read(cx)
3519 .current_inlays()
3520 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3521 .cloned()
3522 .collect()
3523 }
3524
3525 pub fn excerpts_for_inlay_hints_query(
3526 &self,
3527 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3528 cx: &mut ViewContext<Editor>,
3529 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3530 let Some(project) = self.project.as_ref() else {
3531 return HashMap::default();
3532 };
3533 let project = project.read(cx);
3534 let multi_buffer = self.buffer().read(cx);
3535 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3536 let multi_buffer_visible_start = self
3537 .scroll_manager
3538 .anchor()
3539 .anchor
3540 .to_point(&multi_buffer_snapshot);
3541 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3542 multi_buffer_visible_start
3543 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3544 Bias::Left,
3545 );
3546 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3547 multi_buffer
3548 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3549 .into_iter()
3550 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3551 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3552 let buffer = buffer_handle.read(cx);
3553 let buffer_file = project::File::from_dyn(buffer.file())?;
3554 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3555 let worktree_entry = buffer_worktree
3556 .read(cx)
3557 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3558 if worktree_entry.is_ignored {
3559 return None;
3560 }
3561
3562 let language = buffer.language()?;
3563 if let Some(restrict_to_languages) = restrict_to_languages {
3564 if !restrict_to_languages.contains(language) {
3565 return None;
3566 }
3567 }
3568 Some((
3569 excerpt_id,
3570 (
3571 buffer_handle,
3572 buffer.version().clone(),
3573 excerpt_visible_range,
3574 ),
3575 ))
3576 })
3577 .collect()
3578 }
3579
3580 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3581 TextLayoutDetails {
3582 text_system: cx.text_system().clone(),
3583 editor_style: self.style.clone().unwrap(),
3584 rem_size: cx.rem_size(),
3585 scroll_anchor: self.scroll_manager.anchor(),
3586 visible_rows: self.visible_line_count(),
3587 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3588 }
3589 }
3590
3591 fn splice_inlays(
3592 &self,
3593 to_remove: Vec<InlayId>,
3594 to_insert: Vec<Inlay>,
3595 cx: &mut ViewContext<Self>,
3596 ) {
3597 self.display_map.update(cx, |display_map, cx| {
3598 display_map.splice_inlays(to_remove, to_insert, cx)
3599 });
3600 cx.notify();
3601 }
3602
3603 fn trigger_on_type_formatting(
3604 &self,
3605 input: String,
3606 cx: &mut ViewContext<Self>,
3607 ) -> Option<Task<Result<()>>> {
3608 if input.len() != 1 {
3609 return None;
3610 }
3611
3612 let project = self.project.as_ref()?;
3613 let position = self.selections.newest_anchor().head();
3614 let (buffer, buffer_position) = self
3615 .buffer
3616 .read(cx)
3617 .text_anchor_for_position(position, cx)?;
3618
3619 let settings = language_settings::language_settings(
3620 buffer
3621 .read(cx)
3622 .language_at(buffer_position)
3623 .map(|l| l.name()),
3624 buffer.read(cx).file(),
3625 cx,
3626 );
3627 if !settings.use_on_type_format {
3628 return None;
3629 }
3630
3631 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3632 // hence we do LSP request & edit on host side only — add formats to host's history.
3633 let push_to_lsp_host_history = true;
3634 // If this is not the host, append its history with new edits.
3635 let push_to_client_history = project.read(cx).is_via_collab();
3636
3637 let on_type_formatting = project.update(cx, |project, cx| {
3638 project.on_type_format(
3639 buffer.clone(),
3640 buffer_position,
3641 input,
3642 push_to_lsp_host_history,
3643 cx,
3644 )
3645 });
3646 Some(cx.spawn(|editor, mut cx| async move {
3647 if let Some(transaction) = on_type_formatting.await? {
3648 if push_to_client_history {
3649 buffer
3650 .update(&mut cx, |buffer, _| {
3651 buffer.push_transaction(transaction, Instant::now());
3652 })
3653 .ok();
3654 }
3655 editor.update(&mut cx, |editor, cx| {
3656 editor.refresh_document_highlights(cx);
3657 })?;
3658 }
3659 Ok(())
3660 }))
3661 }
3662
3663 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
3664 if self.pending_rename.is_some() {
3665 return;
3666 }
3667
3668 let Some(provider) = self.completion_provider.as_ref() else {
3669 return;
3670 };
3671
3672 if !self.snippet_stack.is_empty() && self.context_menu.borrow().as_ref().is_some() {
3673 return;
3674 }
3675
3676 let position = self.selections.newest_anchor().head();
3677 let (buffer, buffer_position) =
3678 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3679 output
3680 } else {
3681 return;
3682 };
3683 let show_completion_documentation = buffer
3684 .read(cx)
3685 .snapshot()
3686 .settings_at(buffer_position, cx)
3687 .show_completion_documentation;
3688
3689 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3690
3691 let trigger_kind = match &options.trigger {
3692 Some(trigger) if buffer.read(cx).completion_triggers().contains(trigger) => {
3693 CompletionTriggerKind::TRIGGER_CHARACTER
3694 }
3695 _ => CompletionTriggerKind::INVOKED,
3696 };
3697 let completion_context = CompletionContext {
3698 trigger_character: options.trigger.as_ref().and_then(|trigger| {
3699 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
3700 Some(String::from(trigger))
3701 } else {
3702 None
3703 }
3704 }),
3705 trigger_kind,
3706 };
3707 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
3708 let sort_completions = provider.sort_completions();
3709
3710 let id = post_inc(&mut self.next_completion_id);
3711 let task = cx.spawn(|editor, mut cx| {
3712 async move {
3713 editor.update(&mut cx, |this, _| {
3714 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3715 })?;
3716 let completions = completions.await.log_err();
3717 let menu = if let Some(completions) = completions {
3718 let mut menu = CompletionsMenu::new(
3719 id,
3720 sort_completions,
3721 show_completion_documentation,
3722 position,
3723 buffer.clone(),
3724 completions.into(),
3725 );
3726
3727 menu.filter(query.as_deref(), cx.background_executor().clone())
3728 .await;
3729
3730 menu.visible().then_some(menu)
3731 } else {
3732 None
3733 };
3734
3735 editor.update(&mut cx, |editor, cx| {
3736 match editor.context_menu.borrow().as_ref() {
3737 None => {}
3738 Some(CodeContextMenu::Completions(prev_menu)) => {
3739 if prev_menu.id > id {
3740 return;
3741 }
3742 }
3743 _ => return,
3744 }
3745
3746 if editor.focus_handle.is_focused(cx) && menu.is_some() {
3747 let mut menu = menu.unwrap();
3748 menu.resolve_visible_completions(editor.completion_provider.as_deref(), cx);
3749
3750 if editor.show_inline_completions_in_menu(cx) {
3751 if let Some(hint) = editor.inline_completion_menu_hint(cx) {
3752 menu.show_inline_completion_hint(hint);
3753 }
3754 } else {
3755 editor.discard_inline_completion(false, cx);
3756 }
3757
3758 *editor.context_menu.borrow_mut() =
3759 Some(CodeContextMenu::Completions(menu));
3760
3761 cx.notify();
3762 } else if editor.completion_tasks.len() <= 1 {
3763 // If there are no more completion tasks and the last menu was
3764 // empty, we should hide it.
3765 let was_hidden = editor.hide_context_menu(cx).is_none();
3766 // If it was already hidden and we don't show inline
3767 // completions in the menu, we should also show the
3768 // inline-completion when available.
3769 if was_hidden && editor.show_inline_completions_in_menu(cx) {
3770 editor.update_visible_inline_completion(cx);
3771 }
3772 }
3773 })?;
3774
3775 Ok::<_, anyhow::Error>(())
3776 }
3777 .log_err()
3778 });
3779
3780 self.completion_tasks.push((id, task));
3781 }
3782
3783 pub fn confirm_completion(
3784 &mut self,
3785 action: &ConfirmCompletion,
3786 cx: &mut ViewContext<Self>,
3787 ) -> Option<Task<Result<()>>> {
3788 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
3789 }
3790
3791 pub fn compose_completion(
3792 &mut self,
3793 action: &ComposeCompletion,
3794 cx: &mut ViewContext<Self>,
3795 ) -> Option<Task<Result<()>>> {
3796 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
3797 }
3798
3799 fn do_completion(
3800 &mut self,
3801 item_ix: Option<usize>,
3802 intent: CompletionIntent,
3803 cx: &mut ViewContext<Editor>,
3804 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
3805 use language::ToOffset as _;
3806
3807 let completions_menu =
3808 if let CodeContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3809 menu
3810 } else {
3811 return None;
3812 };
3813
3814 let mat = completions_menu
3815 .entries
3816 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
3817
3818 let mat = match mat {
3819 CompletionEntry::InlineCompletionHint { .. } => {
3820 self.accept_inline_completion(&AcceptInlineCompletion, cx);
3821 cx.stop_propagation();
3822 return Some(Task::ready(Ok(())));
3823 }
3824 CompletionEntry::Match(mat) => {
3825 if self.show_inline_completions_in_menu(cx) {
3826 self.discard_inline_completion(true, cx);
3827 }
3828 mat
3829 }
3830 };
3831
3832 let buffer_handle = completions_menu.buffer;
3833 let completion = completions_menu
3834 .completions
3835 .borrow()
3836 .get(mat.candidate_id)?
3837 .clone();
3838 cx.stop_propagation();
3839
3840 let snippet;
3841 let text;
3842
3843 if completion.is_snippet() {
3844 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3845 text = snippet.as_ref().unwrap().text.clone();
3846 } else {
3847 snippet = None;
3848 text = completion.new_text.clone();
3849 };
3850 let selections = self.selections.all::<usize>(cx);
3851 let buffer = buffer_handle.read(cx);
3852 let old_range = completion.old_range.to_offset(buffer);
3853 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3854
3855 let newest_selection = self.selections.newest_anchor();
3856 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3857 return None;
3858 }
3859
3860 let lookbehind = newest_selection
3861 .start
3862 .text_anchor
3863 .to_offset(buffer)
3864 .saturating_sub(old_range.start);
3865 let lookahead = old_range
3866 .end
3867 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3868 let mut common_prefix_len = old_text
3869 .bytes()
3870 .zip(text.bytes())
3871 .take_while(|(a, b)| a == b)
3872 .count();
3873
3874 let snapshot = self.buffer.read(cx).snapshot(cx);
3875 let mut range_to_replace: Option<Range<isize>> = None;
3876 let mut ranges = Vec::new();
3877 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3878 for selection in &selections {
3879 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3880 let start = selection.start.saturating_sub(lookbehind);
3881 let end = selection.end + lookahead;
3882 if selection.id == newest_selection.id {
3883 range_to_replace = Some(
3884 ((start + common_prefix_len) as isize - selection.start as isize)
3885 ..(end as isize - selection.start as isize),
3886 );
3887 }
3888 ranges.push(start + common_prefix_len..end);
3889 } else {
3890 common_prefix_len = 0;
3891 ranges.clear();
3892 ranges.extend(selections.iter().map(|s| {
3893 if s.id == newest_selection.id {
3894 range_to_replace = Some(
3895 old_range.start.to_offset_utf16(&snapshot).0 as isize
3896 - selection.start as isize
3897 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3898 - selection.start as isize,
3899 );
3900 old_range.clone()
3901 } else {
3902 s.start..s.end
3903 }
3904 }));
3905 break;
3906 }
3907 if !self.linked_edit_ranges.is_empty() {
3908 let start_anchor = snapshot.anchor_before(selection.head());
3909 let end_anchor = snapshot.anchor_after(selection.tail());
3910 if let Some(ranges) = self
3911 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
3912 {
3913 for (buffer, edits) in ranges {
3914 linked_edits.entry(buffer.clone()).or_default().extend(
3915 edits
3916 .into_iter()
3917 .map(|range| (range, text[common_prefix_len..].to_owned())),
3918 );
3919 }
3920 }
3921 }
3922 }
3923 let text = &text[common_prefix_len..];
3924
3925 cx.emit(EditorEvent::InputHandled {
3926 utf16_range_to_replace: range_to_replace,
3927 text: text.into(),
3928 });
3929
3930 self.transact(cx, |this, cx| {
3931 if let Some(mut snippet) = snippet {
3932 snippet.text = text.to_string();
3933 for tabstop in snippet
3934 .tabstops
3935 .iter_mut()
3936 .flat_map(|tabstop| tabstop.ranges.iter_mut())
3937 {
3938 tabstop.start -= common_prefix_len as isize;
3939 tabstop.end -= common_prefix_len as isize;
3940 }
3941
3942 this.insert_snippet(&ranges, snippet, cx).log_err();
3943 } else {
3944 this.buffer.update(cx, |buffer, cx| {
3945 buffer.edit(
3946 ranges.iter().map(|range| (range.clone(), text)),
3947 this.autoindent_mode.clone(),
3948 cx,
3949 );
3950 });
3951 }
3952 for (buffer, edits) in linked_edits {
3953 buffer.update(cx, |buffer, cx| {
3954 let snapshot = buffer.snapshot();
3955 let edits = edits
3956 .into_iter()
3957 .map(|(range, text)| {
3958 use text::ToPoint as TP;
3959 let end_point = TP::to_point(&range.end, &snapshot);
3960 let start_point = TP::to_point(&range.start, &snapshot);
3961 (start_point..end_point, text)
3962 })
3963 .sorted_by_key(|(range, _)| range.start)
3964 .collect::<Vec<_>>();
3965 buffer.edit(edits, None, cx);
3966 })
3967 }
3968
3969 this.refresh_inline_completion(true, false, cx);
3970 });
3971
3972 let show_new_completions_on_confirm = completion
3973 .confirm
3974 .as_ref()
3975 .map_or(false, |confirm| confirm(intent, cx));
3976 if show_new_completions_on_confirm {
3977 self.show_completions(&ShowCompletions { trigger: None }, cx);
3978 }
3979
3980 let provider = self.completion_provider.as_ref()?;
3981 drop(completion);
3982 let apply_edits = provider.apply_additional_edits_for_completion(
3983 buffer_handle,
3984 completions_menu.completions.clone(),
3985 mat.candidate_id,
3986 true,
3987 cx,
3988 );
3989
3990 let editor_settings = EditorSettings::get_global(cx);
3991 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
3992 // After the code completion is finished, users often want to know what signatures are needed.
3993 // so we should automatically call signature_help
3994 self.show_signature_help(&ShowSignatureHelp, cx);
3995 }
3996
3997 Some(cx.foreground_executor().spawn(async move {
3998 apply_edits.await?;
3999 Ok(())
4000 }))
4001 }
4002
4003 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4004 let mut context_menu = self.context_menu.borrow_mut();
4005 if let Some(CodeContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4006 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4007 // Toggle if we're selecting the same one
4008 *context_menu = None;
4009 cx.notify();
4010 return;
4011 } else {
4012 // Otherwise, clear it and start a new one
4013 *context_menu = None;
4014 cx.notify();
4015 }
4016 }
4017 drop(context_menu);
4018 let snapshot = self.snapshot(cx);
4019 let deployed_from_indicator = action.deployed_from_indicator;
4020 let mut task = self.code_actions_task.take();
4021 let action = action.clone();
4022 cx.spawn(|editor, mut cx| async move {
4023 while let Some(prev_task) = task {
4024 prev_task.await.log_err();
4025 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4026 }
4027
4028 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4029 if editor.focus_handle.is_focused(cx) {
4030 let multibuffer_point = action
4031 .deployed_from_indicator
4032 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4033 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4034 let (buffer, buffer_row) = snapshot
4035 .buffer_snapshot
4036 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4037 .and_then(|(buffer_snapshot, range)| {
4038 editor
4039 .buffer
4040 .read(cx)
4041 .buffer(buffer_snapshot.remote_id())
4042 .map(|buffer| (buffer, range.start.row))
4043 })?;
4044 let (_, code_actions) = editor
4045 .available_code_actions
4046 .clone()
4047 .and_then(|(location, code_actions)| {
4048 let snapshot = location.buffer.read(cx).snapshot();
4049 let point_range = location.range.to_point(&snapshot);
4050 let point_range = point_range.start.row..=point_range.end.row;
4051 if point_range.contains(&buffer_row) {
4052 Some((location, code_actions))
4053 } else {
4054 None
4055 }
4056 })
4057 .unzip();
4058 let buffer_id = buffer.read(cx).remote_id();
4059 let tasks = editor
4060 .tasks
4061 .get(&(buffer_id, buffer_row))
4062 .map(|t| Arc::new(t.to_owned()));
4063 if tasks.is_none() && code_actions.is_none() {
4064 return None;
4065 }
4066
4067 editor.completion_tasks.clear();
4068 editor.discard_inline_completion(false, cx);
4069 let task_context =
4070 tasks
4071 .as_ref()
4072 .zip(editor.project.clone())
4073 .map(|(tasks, project)| {
4074 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4075 });
4076
4077 Some(cx.spawn(|editor, mut cx| async move {
4078 let task_context = match task_context {
4079 Some(task_context) => task_context.await,
4080 None => None,
4081 };
4082 let resolved_tasks =
4083 tasks.zip(task_context).map(|(tasks, task_context)| {
4084 Rc::new(ResolvedTasks {
4085 templates: tasks.resolve(&task_context).collect(),
4086 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4087 multibuffer_point.row,
4088 tasks.column,
4089 )),
4090 })
4091 });
4092 let spawn_straight_away = resolved_tasks
4093 .as_ref()
4094 .map_or(false, |tasks| tasks.templates.len() == 1)
4095 && code_actions
4096 .as_ref()
4097 .map_or(true, |actions| actions.is_empty());
4098 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4099 *editor.context_menu.borrow_mut() =
4100 Some(CodeContextMenu::CodeActions(CodeActionsMenu {
4101 buffer,
4102 actions: CodeActionContents {
4103 tasks: resolved_tasks,
4104 actions: code_actions,
4105 },
4106 selected_item: Default::default(),
4107 scroll_handle: UniformListScrollHandle::default(),
4108 deployed_from_indicator,
4109 }));
4110 if spawn_straight_away {
4111 if let Some(task) = editor.confirm_code_action(
4112 &ConfirmCodeAction { item_ix: Some(0) },
4113 cx,
4114 ) {
4115 cx.notify();
4116 return task;
4117 }
4118 }
4119 cx.notify();
4120 Task::ready(Ok(()))
4121 }) {
4122 task.await
4123 } else {
4124 Ok(())
4125 }
4126 }))
4127 } else {
4128 Some(Task::ready(Ok(())))
4129 }
4130 })?;
4131 if let Some(task) = spawned_test_task {
4132 task.await?;
4133 }
4134
4135 Ok::<_, anyhow::Error>(())
4136 })
4137 .detach_and_log_err(cx);
4138 }
4139
4140 pub fn confirm_code_action(
4141 &mut self,
4142 action: &ConfirmCodeAction,
4143 cx: &mut ViewContext<Self>,
4144 ) -> Option<Task<Result<()>>> {
4145 let actions_menu = if let CodeContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4146 menu
4147 } else {
4148 return None;
4149 };
4150 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4151 let action = actions_menu.actions.get(action_ix)?;
4152 let title = action.label();
4153 let buffer = actions_menu.buffer;
4154 let workspace = self.workspace()?;
4155
4156 match action {
4157 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4158 workspace.update(cx, |workspace, cx| {
4159 workspace::tasks::schedule_resolved_task(
4160 workspace,
4161 task_source_kind,
4162 resolved_task,
4163 false,
4164 cx,
4165 );
4166
4167 Some(Task::ready(Ok(())))
4168 })
4169 }
4170 CodeActionsItem::CodeAction {
4171 excerpt_id,
4172 action,
4173 provider,
4174 } => {
4175 let apply_code_action =
4176 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4177 let workspace = workspace.downgrade();
4178 Some(cx.spawn(|editor, cx| async move {
4179 let project_transaction = apply_code_action.await?;
4180 Self::open_project_transaction(
4181 &editor,
4182 workspace,
4183 project_transaction,
4184 title,
4185 cx,
4186 )
4187 .await
4188 }))
4189 }
4190 }
4191 }
4192
4193 pub async fn open_project_transaction(
4194 this: &WeakView<Editor>,
4195 workspace: WeakView<Workspace>,
4196 transaction: ProjectTransaction,
4197 title: String,
4198 mut cx: AsyncWindowContext,
4199 ) -> Result<()> {
4200 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4201 cx.update(|cx| {
4202 entries.sort_unstable_by_key(|(buffer, _)| {
4203 buffer.read(cx).file().map(|f| f.path().clone())
4204 });
4205 })?;
4206
4207 // If the project transaction's edits are all contained within this editor, then
4208 // avoid opening a new editor to display them.
4209
4210 if let Some((buffer, transaction)) = entries.first() {
4211 if entries.len() == 1 {
4212 let excerpt = this.update(&mut cx, |editor, cx| {
4213 editor
4214 .buffer()
4215 .read(cx)
4216 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4217 })?;
4218 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4219 if excerpted_buffer == *buffer {
4220 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4221 let excerpt_range = excerpt_range.to_offset(buffer);
4222 buffer
4223 .edited_ranges_for_transaction::<usize>(transaction)
4224 .all(|range| {
4225 excerpt_range.start <= range.start
4226 && excerpt_range.end >= range.end
4227 })
4228 })?;
4229
4230 if all_edits_within_excerpt {
4231 return Ok(());
4232 }
4233 }
4234 }
4235 }
4236 } else {
4237 return Ok(());
4238 }
4239
4240 let mut ranges_to_highlight = Vec::new();
4241 let excerpt_buffer = cx.new_model(|cx| {
4242 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4243 for (buffer_handle, transaction) in &entries {
4244 let buffer = buffer_handle.read(cx);
4245 ranges_to_highlight.extend(
4246 multibuffer.push_excerpts_with_context_lines(
4247 buffer_handle.clone(),
4248 buffer
4249 .edited_ranges_for_transaction::<usize>(transaction)
4250 .collect(),
4251 DEFAULT_MULTIBUFFER_CONTEXT,
4252 cx,
4253 ),
4254 );
4255 }
4256 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4257 multibuffer
4258 })?;
4259
4260 workspace.update(&mut cx, |workspace, cx| {
4261 let project = workspace.project().clone();
4262 let editor =
4263 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4264 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4265 editor.update(cx, |editor, cx| {
4266 editor.highlight_background::<Self>(
4267 &ranges_to_highlight,
4268 |theme| theme.editor_highlighted_line_background,
4269 cx,
4270 );
4271 });
4272 })?;
4273
4274 Ok(())
4275 }
4276
4277 pub fn clear_code_action_providers(&mut self) {
4278 self.code_action_providers.clear();
4279 self.available_code_actions.take();
4280 }
4281
4282 pub fn push_code_action_provider(
4283 &mut self,
4284 provider: Rc<dyn CodeActionProvider>,
4285 cx: &mut ViewContext<Self>,
4286 ) {
4287 self.code_action_providers.push(provider);
4288 self.refresh_code_actions(cx);
4289 }
4290
4291 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4292 let buffer = self.buffer.read(cx);
4293 let newest_selection = self.selections.newest_anchor().clone();
4294 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4295 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4296 if start_buffer != end_buffer {
4297 return None;
4298 }
4299
4300 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4301 cx.background_executor()
4302 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4303 .await;
4304
4305 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4306 let providers = this.code_action_providers.clone();
4307 let tasks = this
4308 .code_action_providers
4309 .iter()
4310 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4311 .collect::<Vec<_>>();
4312 (providers, tasks)
4313 })?;
4314
4315 let mut actions = Vec::new();
4316 for (provider, provider_actions) in
4317 providers.into_iter().zip(future::join_all(tasks).await)
4318 {
4319 if let Some(provider_actions) = provider_actions.log_err() {
4320 actions.extend(provider_actions.into_iter().map(|action| {
4321 AvailableCodeAction {
4322 excerpt_id: newest_selection.start.excerpt_id,
4323 action,
4324 provider: provider.clone(),
4325 }
4326 }));
4327 }
4328 }
4329
4330 this.update(&mut cx, |this, cx| {
4331 this.available_code_actions = if actions.is_empty() {
4332 None
4333 } else {
4334 Some((
4335 Location {
4336 buffer: start_buffer,
4337 range: start..end,
4338 },
4339 actions.into(),
4340 ))
4341 };
4342 cx.notify();
4343 })
4344 }));
4345 None
4346 }
4347
4348 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4349 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4350 self.show_git_blame_inline = false;
4351
4352 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4353 cx.background_executor().timer(delay).await;
4354
4355 this.update(&mut cx, |this, cx| {
4356 this.show_git_blame_inline = true;
4357 cx.notify();
4358 })
4359 .log_err();
4360 }));
4361 }
4362 }
4363
4364 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4365 if self.pending_rename.is_some() {
4366 return None;
4367 }
4368
4369 let provider = self.semantics_provider.clone()?;
4370 let buffer = self.buffer.read(cx);
4371 let newest_selection = self.selections.newest_anchor().clone();
4372 let cursor_position = newest_selection.head();
4373 let (cursor_buffer, cursor_buffer_position) =
4374 buffer.text_anchor_for_position(cursor_position, cx)?;
4375 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4376 if cursor_buffer != tail_buffer {
4377 return None;
4378 }
4379 let debounce = EditorSettings::get_global(cx).lsp_highlight_debounce;
4380 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4381 cx.background_executor()
4382 .timer(Duration::from_millis(debounce))
4383 .await;
4384
4385 let highlights = if let Some(highlights) = cx
4386 .update(|cx| {
4387 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4388 })
4389 .ok()
4390 .flatten()
4391 {
4392 highlights.await.log_err()
4393 } else {
4394 None
4395 };
4396
4397 if let Some(highlights) = highlights {
4398 this.update(&mut cx, |this, cx| {
4399 if this.pending_rename.is_some() {
4400 return;
4401 }
4402
4403 let buffer_id = cursor_position.buffer_id;
4404 let buffer = this.buffer.read(cx);
4405 if !buffer
4406 .text_anchor_for_position(cursor_position, cx)
4407 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4408 {
4409 return;
4410 }
4411
4412 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4413 let mut write_ranges = Vec::new();
4414 let mut read_ranges = Vec::new();
4415 for highlight in highlights {
4416 for (excerpt_id, excerpt_range) in
4417 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4418 {
4419 let start = highlight
4420 .range
4421 .start
4422 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4423 let end = highlight
4424 .range
4425 .end
4426 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4427 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4428 continue;
4429 }
4430
4431 let range = Anchor {
4432 buffer_id,
4433 excerpt_id,
4434 text_anchor: start,
4435 }..Anchor {
4436 buffer_id,
4437 excerpt_id,
4438 text_anchor: end,
4439 };
4440 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4441 write_ranges.push(range);
4442 } else {
4443 read_ranges.push(range);
4444 }
4445 }
4446 }
4447
4448 this.highlight_background::<DocumentHighlightRead>(
4449 &read_ranges,
4450 |theme| theme.editor_document_highlight_read_background,
4451 cx,
4452 );
4453 this.highlight_background::<DocumentHighlightWrite>(
4454 &write_ranges,
4455 |theme| theme.editor_document_highlight_write_background,
4456 cx,
4457 );
4458 cx.notify();
4459 })
4460 .log_err();
4461 }
4462 }));
4463 None
4464 }
4465
4466 pub fn refresh_inline_completion(
4467 &mut self,
4468 debounce: bool,
4469 user_requested: bool,
4470 cx: &mut ViewContext<Self>,
4471 ) -> Option<()> {
4472 let provider = self.inline_completion_provider()?;
4473 let cursor = self.selections.newest_anchor().head();
4474 let (buffer, cursor_buffer_position) =
4475 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4476
4477 if !user_requested
4478 && (!self.enable_inline_completions
4479 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4480 || !self.is_focused(cx))
4481 {
4482 self.discard_inline_completion(false, cx);
4483 return None;
4484 }
4485
4486 self.update_visible_inline_completion(cx);
4487 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4488 Some(())
4489 }
4490
4491 fn cycle_inline_completion(
4492 &mut self,
4493 direction: Direction,
4494 cx: &mut ViewContext<Self>,
4495 ) -> Option<()> {
4496 let provider = self.inline_completion_provider()?;
4497 let cursor = self.selections.newest_anchor().head();
4498 let (buffer, cursor_buffer_position) =
4499 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4500 if !self.enable_inline_completions
4501 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4502 {
4503 return None;
4504 }
4505
4506 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4507 self.update_visible_inline_completion(cx);
4508
4509 Some(())
4510 }
4511
4512 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4513 if !self.has_active_inline_completion() {
4514 self.refresh_inline_completion(false, true, cx);
4515 return;
4516 }
4517
4518 self.update_visible_inline_completion(cx);
4519 }
4520
4521 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4522 self.show_cursor_names(cx);
4523 }
4524
4525 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4526 self.show_cursor_names = true;
4527 cx.notify();
4528 cx.spawn(|this, mut cx| async move {
4529 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4530 this.update(&mut cx, |this, cx| {
4531 this.show_cursor_names = false;
4532 cx.notify()
4533 })
4534 .ok()
4535 })
4536 .detach();
4537 }
4538
4539 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4540 if self.has_active_inline_completion() {
4541 self.cycle_inline_completion(Direction::Next, cx);
4542 } else {
4543 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4544 if is_copilot_disabled {
4545 cx.propagate();
4546 }
4547 }
4548 }
4549
4550 pub fn previous_inline_completion(
4551 &mut self,
4552 _: &PreviousInlineCompletion,
4553 cx: &mut ViewContext<Self>,
4554 ) {
4555 if self.has_active_inline_completion() {
4556 self.cycle_inline_completion(Direction::Prev, 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 accept_inline_completion(
4566 &mut self,
4567 _: &AcceptInlineCompletion,
4568 cx: &mut ViewContext<Self>,
4569 ) {
4570 if self.show_inline_completions_in_menu(cx) {
4571 self.hide_context_menu(cx);
4572 }
4573
4574 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4575 return;
4576 };
4577
4578 self.report_inline_completion_event(true, cx);
4579
4580 match &active_inline_completion.completion {
4581 InlineCompletion::Move(position) => {
4582 let position = *position;
4583 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4584 selections.select_anchor_ranges([position..position]);
4585 });
4586 }
4587 InlineCompletion::Edit(edits) => {
4588 if let Some(provider) = self.inline_completion_provider() {
4589 provider.accept(cx);
4590 }
4591
4592 let snapshot = self.buffer.read(cx).snapshot(cx);
4593 let last_edit_end = edits.last().unwrap().0.end.bias_right(&snapshot);
4594
4595 self.buffer.update(cx, |buffer, cx| {
4596 buffer.edit(edits.iter().cloned(), None, cx)
4597 });
4598
4599 self.change_selections(None, cx, |s| {
4600 s.select_anchor_ranges([last_edit_end..last_edit_end])
4601 });
4602
4603 self.update_visible_inline_completion(cx);
4604 if self.active_inline_completion.is_none() {
4605 self.refresh_inline_completion(true, true, cx);
4606 }
4607
4608 cx.notify();
4609 }
4610 }
4611 }
4612
4613 pub fn accept_partial_inline_completion(
4614 &mut self,
4615 _: &AcceptPartialInlineCompletion,
4616 cx: &mut ViewContext<Self>,
4617 ) {
4618 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4619 return;
4620 };
4621 if self.selections.count() != 1 {
4622 return;
4623 }
4624
4625 self.report_inline_completion_event(true, cx);
4626
4627 match &active_inline_completion.completion {
4628 InlineCompletion::Move(position) => {
4629 let position = *position;
4630 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4631 selections.select_anchor_ranges([position..position]);
4632 });
4633 }
4634 InlineCompletion::Edit(edits) => {
4635 if edits.len() == 1 && edits[0].0.start == edits[0].0.end {
4636 let text = edits[0].1.as_str();
4637 let mut partial_completion = text
4638 .chars()
4639 .by_ref()
4640 .take_while(|c| c.is_alphabetic())
4641 .collect::<String>();
4642 if partial_completion.is_empty() {
4643 partial_completion = text
4644 .chars()
4645 .by_ref()
4646 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4647 .collect::<String>();
4648 }
4649
4650 cx.emit(EditorEvent::InputHandled {
4651 utf16_range_to_replace: None,
4652 text: partial_completion.clone().into(),
4653 });
4654
4655 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4656
4657 self.refresh_inline_completion(true, true, cx);
4658 cx.notify();
4659 }
4660 }
4661 }
4662 }
4663
4664 fn discard_inline_completion(
4665 &mut self,
4666 should_report_inline_completion_event: bool,
4667 cx: &mut ViewContext<Self>,
4668 ) -> bool {
4669 if should_report_inline_completion_event {
4670 self.report_inline_completion_event(false, cx);
4671 }
4672
4673 if let Some(provider) = self.inline_completion_provider() {
4674 provider.discard(cx);
4675 }
4676
4677 self.take_active_inline_completion(cx).is_some()
4678 }
4679
4680 fn report_inline_completion_event(&self, accepted: bool, cx: &AppContext) {
4681 let Some(provider) = self.inline_completion_provider() else {
4682 return;
4683 };
4684 let Some(project) = self.project.as_ref() else {
4685 return;
4686 };
4687 let Some((_, buffer, _)) = self
4688 .buffer
4689 .read(cx)
4690 .excerpt_containing(self.selections.newest_anchor().head(), cx)
4691 else {
4692 return;
4693 };
4694
4695 let project = project.read(cx);
4696 let extension = buffer
4697 .read(cx)
4698 .file()
4699 .and_then(|file| Some(file.path().extension()?.to_string_lossy().to_string()));
4700 project.client().telemetry().report_inline_completion_event(
4701 provider.name().into(),
4702 accepted,
4703 extension,
4704 );
4705 }
4706
4707 pub fn has_active_inline_completion(&self) -> bool {
4708 self.active_inline_completion.is_some()
4709 }
4710
4711 fn take_active_inline_completion(
4712 &mut self,
4713 cx: &mut ViewContext<Self>,
4714 ) -> Option<InlineCompletion> {
4715 let active_inline_completion = self.active_inline_completion.take()?;
4716 self.splice_inlays(active_inline_completion.inlay_ids, Default::default(), cx);
4717 self.clear_highlights::<InlineCompletionHighlight>(cx);
4718 Some(active_inline_completion.completion)
4719 }
4720
4721 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4722 let selection = self.selections.newest_anchor();
4723 let cursor = selection.head();
4724 let multibuffer = self.buffer.read(cx).snapshot(cx);
4725 let offset_selection = selection.map(|endpoint| endpoint.to_offset(&multibuffer));
4726 let excerpt_id = cursor.excerpt_id;
4727
4728 let completions_menu_has_precedence = !self.show_inline_completions_in_menu(cx)
4729 && (self.context_menu.borrow().is_some()
4730 || (!self.completion_tasks.is_empty() && !self.has_active_inline_completion()));
4731 if completions_menu_has_precedence
4732 || !offset_selection.is_empty()
4733 || self
4734 .active_inline_completion
4735 .as_ref()
4736 .map_or(false, |completion| {
4737 let invalidation_range = completion.invalidation_range.to_offset(&multibuffer);
4738 let invalidation_range = invalidation_range.start..=invalidation_range.end;
4739 !invalidation_range.contains(&offset_selection.head())
4740 })
4741 {
4742 self.discard_inline_completion(false, cx);
4743 return None;
4744 }
4745
4746 self.take_active_inline_completion(cx);
4747 let provider = self.inline_completion_provider()?;
4748
4749 let (buffer, cursor_buffer_position) =
4750 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4751
4752 let completion = provider.suggest(&buffer, cursor_buffer_position, cx)?;
4753 let edits = completion
4754 .edits
4755 .into_iter()
4756 .flat_map(|(range, new_text)| {
4757 let start = multibuffer.anchor_in_excerpt(excerpt_id, range.start)?;
4758 let end = multibuffer.anchor_in_excerpt(excerpt_id, range.end)?;
4759 Some((start..end, new_text))
4760 })
4761 .collect::<Vec<_>>();
4762 if edits.is_empty() {
4763 return None;
4764 }
4765
4766 let first_edit_start = edits.first().unwrap().0.start;
4767 let edit_start_row = first_edit_start
4768 .to_point(&multibuffer)
4769 .row
4770 .saturating_sub(2);
4771
4772 let last_edit_end = edits.last().unwrap().0.end;
4773 let edit_end_row = cmp::min(
4774 multibuffer.max_point().row,
4775 last_edit_end.to_point(&multibuffer).row + 2,
4776 );
4777
4778 let cursor_row = cursor.to_point(&multibuffer).row;
4779
4780 let mut inlay_ids = Vec::new();
4781 let invalidation_row_range;
4782 let completion;
4783 if cursor_row < edit_start_row {
4784 invalidation_row_range = cursor_row..edit_end_row;
4785 completion = InlineCompletion::Move(first_edit_start);
4786 } else if cursor_row > edit_end_row {
4787 invalidation_row_range = edit_start_row..cursor_row;
4788 completion = InlineCompletion::Move(first_edit_start);
4789 } else {
4790 if edits
4791 .iter()
4792 .all(|(range, _)| range.to_offset(&multibuffer).is_empty())
4793 {
4794 let mut inlays = Vec::new();
4795 for (range, new_text) in &edits {
4796 let inlay = Inlay::inline_completion(
4797 post_inc(&mut self.next_inlay_id),
4798 range.start,
4799 new_text.as_str(),
4800 );
4801 inlay_ids.push(inlay.id);
4802 inlays.push(inlay);
4803 }
4804
4805 self.splice_inlays(vec![], inlays, cx);
4806 } else {
4807 let background_color = cx.theme().status().deleted_background;
4808 self.highlight_text::<InlineCompletionHighlight>(
4809 edits.iter().map(|(range, _)| range.clone()).collect(),
4810 HighlightStyle {
4811 background_color: Some(background_color),
4812 ..Default::default()
4813 },
4814 cx,
4815 );
4816 }
4817
4818 invalidation_row_range = edit_start_row..edit_end_row;
4819 completion = InlineCompletion::Edit(edits);
4820 };
4821
4822 let invalidation_range = multibuffer
4823 .anchor_before(Point::new(invalidation_row_range.start, 0))
4824 ..multibuffer.anchor_after(Point::new(
4825 invalidation_row_range.end,
4826 multibuffer.line_len(MultiBufferRow(invalidation_row_range.end)),
4827 ));
4828
4829 self.active_inline_completion = Some(InlineCompletionState {
4830 inlay_ids,
4831 completion,
4832 invalidation_range,
4833 });
4834
4835 if self.show_inline_completions_in_menu(cx) && self.has_active_completions_menu() {
4836 if let Some(hint) = self.inline_completion_menu_hint(cx) {
4837 match self.context_menu.borrow_mut().as_mut() {
4838 Some(CodeContextMenu::Completions(menu)) => {
4839 menu.show_inline_completion_hint(hint);
4840 }
4841 _ => {}
4842 }
4843 }
4844 }
4845
4846 cx.notify();
4847
4848 Some(())
4849 }
4850
4851 fn inline_completion_menu_hint(
4852 &mut self,
4853 cx: &mut ViewContext<Self>,
4854 ) -> Option<InlineCompletionMenuHint> {
4855 if self.has_active_inline_completion() {
4856 let provider_name = self.inline_completion_provider()?.display_name();
4857 let editor_snapshot = self.snapshot(cx);
4858
4859 let text = match &self.active_inline_completion.as_ref()?.completion {
4860 InlineCompletion::Edit(edits) => {
4861 inline_completion_edit_text(&editor_snapshot, edits, true, cx)
4862 }
4863 InlineCompletion::Move(target) => {
4864 let target_point =
4865 target.to_point(&editor_snapshot.display_snapshot.buffer_snapshot);
4866 let target_line = target_point.row + 1;
4867 InlineCompletionText::Move(
4868 format!("Jump to edit in line {}", target_line).into(),
4869 )
4870 }
4871 };
4872
4873 Some(InlineCompletionMenuHint {
4874 provider_name,
4875 text,
4876 })
4877 } else {
4878 None
4879 }
4880 }
4881
4882 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4883 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4884 }
4885
4886 fn show_inline_completions_in_menu(&self, cx: &AppContext) -> bool {
4887 EditorSettings::get_global(cx).show_inline_completions_in_menu
4888 && self
4889 .inline_completion_provider()
4890 .map_or(false, |provider| provider.show_completions_in_menu())
4891 }
4892
4893 fn render_code_actions_indicator(
4894 &self,
4895 _style: &EditorStyle,
4896 row: DisplayRow,
4897 is_active: bool,
4898 cx: &mut ViewContext<Self>,
4899 ) -> Option<IconButton> {
4900 if self.available_code_actions.is_some() {
4901 Some(
4902 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4903 .shape(ui::IconButtonShape::Square)
4904 .icon_size(IconSize::XSmall)
4905 .icon_color(Color::Muted)
4906 .toggle_state(is_active)
4907 .tooltip({
4908 let focus_handle = self.focus_handle.clone();
4909 move |cx| {
4910 Tooltip::for_action_in(
4911 "Toggle Code Actions",
4912 &ToggleCodeActions {
4913 deployed_from_indicator: None,
4914 },
4915 &focus_handle,
4916 cx,
4917 )
4918 }
4919 })
4920 .on_click(cx.listener(move |editor, _e, cx| {
4921 editor.focus(cx);
4922 editor.toggle_code_actions(
4923 &ToggleCodeActions {
4924 deployed_from_indicator: Some(row),
4925 },
4926 cx,
4927 );
4928 })),
4929 )
4930 } else {
4931 None
4932 }
4933 }
4934
4935 fn clear_tasks(&mut self) {
4936 self.tasks.clear()
4937 }
4938
4939 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
4940 if self.tasks.insert(key, value).is_some() {
4941 // This case should hopefully be rare, but just in case...
4942 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4943 }
4944 }
4945
4946 fn build_tasks_context(
4947 project: &Model<Project>,
4948 buffer: &Model<Buffer>,
4949 buffer_row: u32,
4950 tasks: &Arc<RunnableTasks>,
4951 cx: &mut ViewContext<Self>,
4952 ) -> Task<Option<task::TaskContext>> {
4953 let position = Point::new(buffer_row, tasks.column);
4954 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4955 let location = Location {
4956 buffer: buffer.clone(),
4957 range: range_start..range_start,
4958 };
4959 // Fill in the environmental variables from the tree-sitter captures
4960 let mut captured_task_variables = TaskVariables::default();
4961 for (capture_name, value) in tasks.extra_variables.clone() {
4962 captured_task_variables.insert(
4963 task::VariableName::Custom(capture_name.into()),
4964 value.clone(),
4965 );
4966 }
4967 project.update(cx, |project, cx| {
4968 project.task_store().update(cx, |task_store, cx| {
4969 task_store.task_context_for_location(captured_task_variables, location, cx)
4970 })
4971 })
4972 }
4973
4974 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
4975 let Some((workspace, _)) = self.workspace.clone() else {
4976 return;
4977 };
4978 let Some(project) = self.project.clone() else {
4979 return;
4980 };
4981
4982 // Try to find a closest, enclosing node using tree-sitter that has a
4983 // task
4984 let Some((buffer, buffer_row, tasks)) = self
4985 .find_enclosing_node_task(cx)
4986 // Or find the task that's closest in row-distance.
4987 .or_else(|| self.find_closest_task(cx))
4988 else {
4989 return;
4990 };
4991
4992 let reveal_strategy = action.reveal;
4993 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
4994 cx.spawn(|_, mut cx| async move {
4995 let context = task_context.await?;
4996 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
4997
4998 let resolved = resolved_task.resolved.as_mut()?;
4999 resolved.reveal = reveal_strategy;
5000
5001 workspace
5002 .update(&mut cx, |workspace, cx| {
5003 workspace::tasks::schedule_resolved_task(
5004 workspace,
5005 task_source_kind,
5006 resolved_task,
5007 false,
5008 cx,
5009 );
5010 })
5011 .ok()
5012 })
5013 .detach();
5014 }
5015
5016 fn find_closest_task(
5017 &mut self,
5018 cx: &mut ViewContext<Self>,
5019 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5020 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5021
5022 let ((buffer_id, row), tasks) = self
5023 .tasks
5024 .iter()
5025 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5026
5027 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5028 let tasks = Arc::new(tasks.to_owned());
5029 Some((buffer, *row, tasks))
5030 }
5031
5032 fn find_enclosing_node_task(
5033 &mut self,
5034 cx: &mut ViewContext<Self>,
5035 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5036 let snapshot = self.buffer.read(cx).snapshot(cx);
5037 let offset = self.selections.newest::<usize>(cx).head();
5038 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5039 let buffer_id = excerpt.buffer().remote_id();
5040
5041 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5042 let mut cursor = layer.node().walk();
5043
5044 while cursor.goto_first_child_for_byte(offset).is_some() {
5045 if cursor.node().end_byte() == offset {
5046 cursor.goto_next_sibling();
5047 }
5048 }
5049
5050 // Ascend to the smallest ancestor that contains the range and has a task.
5051 loop {
5052 let node = cursor.node();
5053 let node_range = node.byte_range();
5054 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5055
5056 // Check if this node contains our offset
5057 if node_range.start <= offset && node_range.end >= offset {
5058 // If it contains offset, check for task
5059 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5060 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5061 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5062 }
5063 }
5064
5065 if !cursor.goto_parent() {
5066 break;
5067 }
5068 }
5069 None
5070 }
5071
5072 fn render_run_indicator(
5073 &self,
5074 _style: &EditorStyle,
5075 is_active: bool,
5076 row: DisplayRow,
5077 cx: &mut ViewContext<Self>,
5078 ) -> IconButton {
5079 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5080 .shape(ui::IconButtonShape::Square)
5081 .icon_size(IconSize::XSmall)
5082 .icon_color(Color::Muted)
5083 .toggle_state(is_active)
5084 .on_click(cx.listener(move |editor, _e, cx| {
5085 editor.focus(cx);
5086 editor.toggle_code_actions(
5087 &ToggleCodeActions {
5088 deployed_from_indicator: Some(row),
5089 },
5090 cx,
5091 );
5092 }))
5093 }
5094
5095 #[cfg(any(feature = "test-support", test))]
5096 pub fn context_menu_visible(&self) -> bool {
5097 self.context_menu
5098 .borrow()
5099 .as_ref()
5100 .map_or(false, |menu| menu.visible())
5101 }
5102
5103 #[cfg(feature = "test-support")]
5104 pub fn context_menu_contains_inline_completion(&self) -> bool {
5105 self.context_menu
5106 .borrow()
5107 .as_ref()
5108 .map_or(false, |menu| match menu {
5109 CodeContextMenu::Completions(menu) => menu.entries.first().map_or(false, |entry| {
5110 matches!(entry, CompletionEntry::InlineCompletionHint(_))
5111 }),
5112 CodeContextMenu::CodeActions(_) => false,
5113 })
5114 }
5115
5116 fn context_menu_origin(&self, cursor_position: DisplayPoint) -> Option<ContextMenuOrigin> {
5117 self.context_menu
5118 .borrow()
5119 .as_ref()
5120 .map(|menu| menu.origin(cursor_position))
5121 }
5122
5123 fn render_context_menu(
5124 &self,
5125 style: &EditorStyle,
5126 max_height_in_lines: u32,
5127 cx: &mut ViewContext<Editor>,
5128 ) -> Option<AnyElement> {
5129 self.context_menu.borrow().as_ref().and_then(|menu| {
5130 if menu.visible() {
5131 Some(menu.render(style, max_height_in_lines, cx))
5132 } else {
5133 None
5134 }
5135 })
5136 }
5137
5138 fn render_context_menu_aside(
5139 &self,
5140 style: &EditorStyle,
5141 max_size: Size<Pixels>,
5142 cx: &mut ViewContext<Editor>,
5143 ) -> Option<AnyElement> {
5144 self.context_menu.borrow().as_ref().and_then(|menu| {
5145 if menu.visible() {
5146 menu.render_aside(
5147 style,
5148 max_size,
5149 self.workspace.as_ref().map(|(w, _)| w.clone()),
5150 cx,
5151 )
5152 } else {
5153 None
5154 }
5155 })
5156 }
5157
5158 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<CodeContextMenu> {
5159 cx.notify();
5160 self.completion_tasks.clear();
5161 let context_menu = self.context_menu.borrow_mut().take();
5162 if context_menu.is_some() && !self.show_inline_completions_in_menu(cx) {
5163 self.update_visible_inline_completion(cx);
5164 }
5165 context_menu
5166 }
5167
5168 fn show_snippet_choices(
5169 &mut self,
5170 choices: &Vec<String>,
5171 selection: Range<Anchor>,
5172 cx: &mut ViewContext<Self>,
5173 ) {
5174 if selection.start.buffer_id.is_none() {
5175 return;
5176 }
5177 let buffer_id = selection.start.buffer_id.unwrap();
5178 let buffer = self.buffer().read(cx).buffer(buffer_id);
5179 let id = post_inc(&mut self.next_completion_id);
5180
5181 if let Some(buffer) = buffer {
5182 *self.context_menu.borrow_mut() = Some(CodeContextMenu::Completions(
5183 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
5184 ));
5185 }
5186 }
5187
5188 pub fn insert_snippet(
5189 &mut self,
5190 insertion_ranges: &[Range<usize>],
5191 snippet: Snippet,
5192 cx: &mut ViewContext<Self>,
5193 ) -> Result<()> {
5194 struct Tabstop<T> {
5195 is_end_tabstop: bool,
5196 ranges: Vec<Range<T>>,
5197 choices: Option<Vec<String>>,
5198 }
5199
5200 let tabstops = self.buffer.update(cx, |buffer, cx| {
5201 let snippet_text: Arc<str> = snippet.text.clone().into();
5202 buffer.edit(
5203 insertion_ranges
5204 .iter()
5205 .cloned()
5206 .map(|range| (range, snippet_text.clone())),
5207 Some(AutoindentMode::EachLine),
5208 cx,
5209 );
5210
5211 let snapshot = &*buffer.read(cx);
5212 let snippet = &snippet;
5213 snippet
5214 .tabstops
5215 .iter()
5216 .map(|tabstop| {
5217 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5218 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5219 });
5220 let mut tabstop_ranges = tabstop
5221 .ranges
5222 .iter()
5223 .flat_map(|tabstop_range| {
5224 let mut delta = 0_isize;
5225 insertion_ranges.iter().map(move |insertion_range| {
5226 let insertion_start = insertion_range.start as isize + delta;
5227 delta +=
5228 snippet.text.len() as isize - insertion_range.len() as isize;
5229
5230 let start = ((insertion_start + tabstop_range.start) as usize)
5231 .min(snapshot.len());
5232 let end = ((insertion_start + tabstop_range.end) as usize)
5233 .min(snapshot.len());
5234 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5235 })
5236 })
5237 .collect::<Vec<_>>();
5238 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5239
5240 Tabstop {
5241 is_end_tabstop,
5242 ranges: tabstop_ranges,
5243 choices: tabstop.choices.clone(),
5244 }
5245 })
5246 .collect::<Vec<_>>()
5247 });
5248 if let Some(tabstop) = tabstops.first() {
5249 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5250 s.select_ranges(tabstop.ranges.iter().cloned());
5251 });
5252
5253 if let Some(choices) = &tabstop.choices {
5254 if let Some(selection) = tabstop.ranges.first() {
5255 self.show_snippet_choices(choices, selection.clone(), cx)
5256 }
5257 }
5258
5259 // If we're already at the last tabstop and it's at the end of the snippet,
5260 // we're done, we don't need to keep the state around.
5261 if !tabstop.is_end_tabstop {
5262 let choices = tabstops
5263 .iter()
5264 .map(|tabstop| tabstop.choices.clone())
5265 .collect();
5266
5267 let ranges = tabstops
5268 .into_iter()
5269 .map(|tabstop| tabstop.ranges)
5270 .collect::<Vec<_>>();
5271
5272 self.snippet_stack.push(SnippetState {
5273 active_index: 0,
5274 ranges,
5275 choices,
5276 });
5277 }
5278
5279 // Check whether the just-entered snippet ends with an auto-closable bracket.
5280 if self.autoclose_regions.is_empty() {
5281 let snapshot = self.buffer.read(cx).snapshot(cx);
5282 for selection in &mut self.selections.all::<Point>(cx) {
5283 let selection_head = selection.head();
5284 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5285 continue;
5286 };
5287
5288 let mut bracket_pair = None;
5289 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5290 let prev_chars = snapshot
5291 .reversed_chars_at(selection_head)
5292 .collect::<String>();
5293 for (pair, enabled) in scope.brackets() {
5294 if enabled
5295 && pair.close
5296 && prev_chars.starts_with(pair.start.as_str())
5297 && next_chars.starts_with(pair.end.as_str())
5298 {
5299 bracket_pair = Some(pair.clone());
5300 break;
5301 }
5302 }
5303 if let Some(pair) = bracket_pair {
5304 let start = snapshot.anchor_after(selection_head);
5305 let end = snapshot.anchor_after(selection_head);
5306 self.autoclose_regions.push(AutocloseRegion {
5307 selection_id: selection.id,
5308 range: start..end,
5309 pair,
5310 });
5311 }
5312 }
5313 }
5314 }
5315 Ok(())
5316 }
5317
5318 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5319 self.move_to_snippet_tabstop(Bias::Right, cx)
5320 }
5321
5322 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5323 self.move_to_snippet_tabstop(Bias::Left, cx)
5324 }
5325
5326 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5327 if let Some(mut snippet) = self.snippet_stack.pop() {
5328 match bias {
5329 Bias::Left => {
5330 if snippet.active_index > 0 {
5331 snippet.active_index -= 1;
5332 } else {
5333 self.snippet_stack.push(snippet);
5334 return false;
5335 }
5336 }
5337 Bias::Right => {
5338 if snippet.active_index + 1 < snippet.ranges.len() {
5339 snippet.active_index += 1;
5340 } else {
5341 self.snippet_stack.push(snippet);
5342 return false;
5343 }
5344 }
5345 }
5346 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5347 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5348 s.select_anchor_ranges(current_ranges.iter().cloned())
5349 });
5350
5351 if let Some(choices) = &snippet.choices[snippet.active_index] {
5352 if let Some(selection) = current_ranges.first() {
5353 self.show_snippet_choices(&choices, selection.clone(), cx);
5354 }
5355 }
5356
5357 // If snippet state is not at the last tabstop, push it back on the stack
5358 if snippet.active_index + 1 < snippet.ranges.len() {
5359 self.snippet_stack.push(snippet);
5360 }
5361 return true;
5362 }
5363 }
5364
5365 false
5366 }
5367
5368 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5369 self.transact(cx, |this, cx| {
5370 this.select_all(&SelectAll, cx);
5371 this.insert("", cx);
5372 });
5373 }
5374
5375 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5376 self.transact(cx, |this, cx| {
5377 this.select_autoclose_pair(cx);
5378 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5379 if !this.linked_edit_ranges.is_empty() {
5380 let selections = this.selections.all::<MultiBufferPoint>(cx);
5381 let snapshot = this.buffer.read(cx).snapshot(cx);
5382
5383 for selection in selections.iter() {
5384 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5385 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5386 if selection_start.buffer_id != selection_end.buffer_id {
5387 continue;
5388 }
5389 if let Some(ranges) =
5390 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5391 {
5392 for (buffer, entries) in ranges {
5393 linked_ranges.entry(buffer).or_default().extend(entries);
5394 }
5395 }
5396 }
5397 }
5398
5399 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5400 if !this.selections.line_mode {
5401 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5402 for selection in &mut selections {
5403 if selection.is_empty() {
5404 let old_head = selection.head();
5405 let mut new_head =
5406 movement::left(&display_map, old_head.to_display_point(&display_map))
5407 .to_point(&display_map);
5408 if let Some((buffer, line_buffer_range)) = display_map
5409 .buffer_snapshot
5410 .buffer_line_for_row(MultiBufferRow(old_head.row))
5411 {
5412 let indent_size =
5413 buffer.indent_size_for_line(line_buffer_range.start.row);
5414 let indent_len = match indent_size.kind {
5415 IndentKind::Space => {
5416 buffer.settings_at(line_buffer_range.start, cx).tab_size
5417 }
5418 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5419 };
5420 if old_head.column <= indent_size.len && old_head.column > 0 {
5421 let indent_len = indent_len.get();
5422 new_head = cmp::min(
5423 new_head,
5424 MultiBufferPoint::new(
5425 old_head.row,
5426 ((old_head.column - 1) / indent_len) * indent_len,
5427 ),
5428 );
5429 }
5430 }
5431
5432 selection.set_head(new_head, SelectionGoal::None);
5433 }
5434 }
5435 }
5436
5437 this.signature_help_state.set_backspace_pressed(true);
5438 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5439 this.insert("", cx);
5440 let empty_str: Arc<str> = Arc::from("");
5441 for (buffer, edits) in linked_ranges {
5442 let snapshot = buffer.read(cx).snapshot();
5443 use text::ToPoint as TP;
5444
5445 let edits = edits
5446 .into_iter()
5447 .map(|range| {
5448 let end_point = TP::to_point(&range.end, &snapshot);
5449 let mut start_point = TP::to_point(&range.start, &snapshot);
5450
5451 if end_point == start_point {
5452 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5453 .saturating_sub(1);
5454 start_point =
5455 snapshot.clip_point(TP::to_point(&offset, &snapshot), Bias::Left);
5456 };
5457
5458 (start_point..end_point, empty_str.clone())
5459 })
5460 .sorted_by_key(|(range, _)| range.start)
5461 .collect::<Vec<_>>();
5462 buffer.update(cx, |this, cx| {
5463 this.edit(edits, None, cx);
5464 })
5465 }
5466 this.refresh_inline_completion(true, false, cx);
5467 linked_editing_ranges::refresh_linked_ranges(this, cx);
5468 });
5469 }
5470
5471 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5472 self.transact(cx, |this, cx| {
5473 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5474 let line_mode = s.line_mode;
5475 s.move_with(|map, selection| {
5476 if selection.is_empty() && !line_mode {
5477 let cursor = movement::right(map, selection.head());
5478 selection.end = cursor;
5479 selection.reversed = true;
5480 selection.goal = SelectionGoal::None;
5481 }
5482 })
5483 });
5484 this.insert("", cx);
5485 this.refresh_inline_completion(true, false, cx);
5486 });
5487 }
5488
5489 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5490 if self.move_to_prev_snippet_tabstop(cx) {
5491 return;
5492 }
5493
5494 self.outdent(&Outdent, cx);
5495 }
5496
5497 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5498 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5499 return;
5500 }
5501
5502 let mut selections = self.selections.all_adjusted(cx);
5503 let buffer = self.buffer.read(cx);
5504 let snapshot = buffer.snapshot(cx);
5505 let rows_iter = selections.iter().map(|s| s.head().row);
5506 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5507
5508 let mut edits = Vec::new();
5509 let mut prev_edited_row = 0;
5510 let mut row_delta = 0;
5511 for selection in &mut selections {
5512 if selection.start.row != prev_edited_row {
5513 row_delta = 0;
5514 }
5515 prev_edited_row = selection.end.row;
5516
5517 // If the selection is non-empty, then increase the indentation of the selected lines.
5518 if !selection.is_empty() {
5519 row_delta =
5520 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5521 continue;
5522 }
5523
5524 // If the selection is empty and the cursor is in the leading whitespace before the
5525 // suggested indentation, then auto-indent the line.
5526 let cursor = selection.head();
5527 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5528 if let Some(suggested_indent) =
5529 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5530 {
5531 if cursor.column < suggested_indent.len
5532 && cursor.column <= current_indent.len
5533 && current_indent.len <= suggested_indent.len
5534 {
5535 selection.start = Point::new(cursor.row, suggested_indent.len);
5536 selection.end = selection.start;
5537 if row_delta == 0 {
5538 edits.extend(Buffer::edit_for_indent_size_adjustment(
5539 cursor.row,
5540 current_indent,
5541 suggested_indent,
5542 ));
5543 row_delta = suggested_indent.len - current_indent.len;
5544 }
5545 continue;
5546 }
5547 }
5548
5549 // Otherwise, insert a hard or soft tab.
5550 let settings = buffer.settings_at(cursor, cx);
5551 let tab_size = if settings.hard_tabs {
5552 IndentSize::tab()
5553 } else {
5554 let tab_size = settings.tab_size.get();
5555 let char_column = snapshot
5556 .text_for_range(Point::new(cursor.row, 0)..cursor)
5557 .flat_map(str::chars)
5558 .count()
5559 + row_delta as usize;
5560 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5561 IndentSize::spaces(chars_to_next_tab_stop)
5562 };
5563 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5564 selection.end = selection.start;
5565 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5566 row_delta += tab_size.len;
5567 }
5568
5569 self.transact(cx, |this, cx| {
5570 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5571 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5572 this.refresh_inline_completion(true, false, cx);
5573 });
5574 }
5575
5576 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5577 if self.read_only(cx) {
5578 return;
5579 }
5580 let mut selections = self.selections.all::<Point>(cx);
5581 let mut prev_edited_row = 0;
5582 let mut row_delta = 0;
5583 let mut edits = Vec::new();
5584 let buffer = self.buffer.read(cx);
5585 let snapshot = buffer.snapshot(cx);
5586 for selection in &mut selections {
5587 if selection.start.row != prev_edited_row {
5588 row_delta = 0;
5589 }
5590 prev_edited_row = selection.end.row;
5591
5592 row_delta =
5593 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5594 }
5595
5596 self.transact(cx, |this, cx| {
5597 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5598 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5599 });
5600 }
5601
5602 fn indent_selection(
5603 buffer: &MultiBuffer,
5604 snapshot: &MultiBufferSnapshot,
5605 selection: &mut Selection<Point>,
5606 edits: &mut Vec<(Range<Point>, String)>,
5607 delta_for_start_row: u32,
5608 cx: &AppContext,
5609 ) -> u32 {
5610 let settings = buffer.settings_at(selection.start, cx);
5611 let tab_size = settings.tab_size.get();
5612 let indent_kind = if settings.hard_tabs {
5613 IndentKind::Tab
5614 } else {
5615 IndentKind::Space
5616 };
5617 let mut start_row = selection.start.row;
5618 let mut end_row = selection.end.row + 1;
5619
5620 // If a selection ends at the beginning of a line, don't indent
5621 // that last line.
5622 if selection.end.column == 0 && selection.end.row > selection.start.row {
5623 end_row -= 1;
5624 }
5625
5626 // Avoid re-indenting a row that has already been indented by a
5627 // previous selection, but still update this selection's column
5628 // to reflect that indentation.
5629 if delta_for_start_row > 0 {
5630 start_row += 1;
5631 selection.start.column += delta_for_start_row;
5632 if selection.end.row == selection.start.row {
5633 selection.end.column += delta_for_start_row;
5634 }
5635 }
5636
5637 let mut delta_for_end_row = 0;
5638 let has_multiple_rows = start_row + 1 != end_row;
5639 for row in start_row..end_row {
5640 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5641 let indent_delta = match (current_indent.kind, indent_kind) {
5642 (IndentKind::Space, IndentKind::Space) => {
5643 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5644 IndentSize::spaces(columns_to_next_tab_stop)
5645 }
5646 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5647 (_, IndentKind::Tab) => IndentSize::tab(),
5648 };
5649
5650 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5651 0
5652 } else {
5653 selection.start.column
5654 };
5655 let row_start = Point::new(row, start);
5656 edits.push((
5657 row_start..row_start,
5658 indent_delta.chars().collect::<String>(),
5659 ));
5660
5661 // Update this selection's endpoints to reflect the indentation.
5662 if row == selection.start.row {
5663 selection.start.column += indent_delta.len;
5664 }
5665 if row == selection.end.row {
5666 selection.end.column += indent_delta.len;
5667 delta_for_end_row = indent_delta.len;
5668 }
5669 }
5670
5671 if selection.start.row == selection.end.row {
5672 delta_for_start_row + delta_for_end_row
5673 } else {
5674 delta_for_end_row
5675 }
5676 }
5677
5678 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5679 if self.read_only(cx) {
5680 return;
5681 }
5682 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5683 let selections = self.selections.all::<Point>(cx);
5684 let mut deletion_ranges = Vec::new();
5685 let mut last_outdent = None;
5686 {
5687 let buffer = self.buffer.read(cx);
5688 let snapshot = buffer.snapshot(cx);
5689 for selection in &selections {
5690 let settings = buffer.settings_at(selection.start, cx);
5691 let tab_size = settings.tab_size.get();
5692 let mut rows = selection.spanned_rows(false, &display_map);
5693
5694 // Avoid re-outdenting a row that has already been outdented by a
5695 // previous selection.
5696 if let Some(last_row) = last_outdent {
5697 if last_row == rows.start {
5698 rows.start = rows.start.next_row();
5699 }
5700 }
5701 let has_multiple_rows = rows.len() > 1;
5702 for row in rows.iter_rows() {
5703 let indent_size = snapshot.indent_size_for_line(row);
5704 if indent_size.len > 0 {
5705 let deletion_len = match indent_size.kind {
5706 IndentKind::Space => {
5707 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5708 if columns_to_prev_tab_stop == 0 {
5709 tab_size
5710 } else {
5711 columns_to_prev_tab_stop
5712 }
5713 }
5714 IndentKind::Tab => 1,
5715 };
5716 let start = if has_multiple_rows
5717 || deletion_len > selection.start.column
5718 || indent_size.len < selection.start.column
5719 {
5720 0
5721 } else {
5722 selection.start.column - deletion_len
5723 };
5724 deletion_ranges.push(
5725 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5726 );
5727 last_outdent = Some(row);
5728 }
5729 }
5730 }
5731 }
5732
5733 self.transact(cx, |this, cx| {
5734 this.buffer.update(cx, |buffer, cx| {
5735 let empty_str: Arc<str> = Arc::default();
5736 buffer.edit(
5737 deletion_ranges
5738 .into_iter()
5739 .map(|range| (range, empty_str.clone())),
5740 None,
5741 cx,
5742 );
5743 });
5744 let selections = this.selections.all::<usize>(cx);
5745 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5746 });
5747 }
5748
5749 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
5750 if self.read_only(cx) {
5751 return;
5752 }
5753 let selections = self
5754 .selections
5755 .all::<usize>(cx)
5756 .into_iter()
5757 .map(|s| s.range());
5758
5759 self.transact(cx, |this, cx| {
5760 this.buffer.update(cx, |buffer, cx| {
5761 buffer.autoindent_ranges(selections, cx);
5762 });
5763 let selections = this.selections.all::<usize>(cx);
5764 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5765 });
5766 }
5767
5768 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5769 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5770 let selections = self.selections.all::<Point>(cx);
5771
5772 let mut new_cursors = Vec::new();
5773 let mut edit_ranges = Vec::new();
5774 let mut selections = selections.iter().peekable();
5775 while let Some(selection) = selections.next() {
5776 let mut rows = selection.spanned_rows(false, &display_map);
5777 let goal_display_column = selection.head().to_display_point(&display_map).column();
5778
5779 // Accumulate contiguous regions of rows that we want to delete.
5780 while let Some(next_selection) = selections.peek() {
5781 let next_rows = next_selection.spanned_rows(false, &display_map);
5782 if next_rows.start <= rows.end {
5783 rows.end = next_rows.end;
5784 selections.next().unwrap();
5785 } else {
5786 break;
5787 }
5788 }
5789
5790 let buffer = &display_map.buffer_snapshot;
5791 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5792 let edit_end;
5793 let cursor_buffer_row;
5794 if buffer.max_point().row >= rows.end.0 {
5795 // If there's a line after the range, delete the \n from the end of the row range
5796 // and position the cursor on the next line.
5797 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5798 cursor_buffer_row = rows.end;
5799 } else {
5800 // If there isn't a line after the range, delete the \n from the line before the
5801 // start of the row range and position the cursor there.
5802 edit_start = edit_start.saturating_sub(1);
5803 edit_end = buffer.len();
5804 cursor_buffer_row = rows.start.previous_row();
5805 }
5806
5807 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5808 *cursor.column_mut() =
5809 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5810
5811 new_cursors.push((
5812 selection.id,
5813 buffer.anchor_after(cursor.to_point(&display_map)),
5814 ));
5815 edit_ranges.push(edit_start..edit_end);
5816 }
5817
5818 self.transact(cx, |this, cx| {
5819 let buffer = this.buffer.update(cx, |buffer, cx| {
5820 let empty_str: Arc<str> = Arc::default();
5821 buffer.edit(
5822 edit_ranges
5823 .into_iter()
5824 .map(|range| (range, empty_str.clone())),
5825 None,
5826 cx,
5827 );
5828 buffer.snapshot(cx)
5829 });
5830 let new_selections = new_cursors
5831 .into_iter()
5832 .map(|(id, cursor)| {
5833 let cursor = cursor.to_point(&buffer);
5834 Selection {
5835 id,
5836 start: cursor,
5837 end: cursor,
5838 reversed: false,
5839 goal: SelectionGoal::None,
5840 }
5841 })
5842 .collect();
5843
5844 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5845 s.select(new_selections);
5846 });
5847 });
5848 }
5849
5850 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5851 if self.read_only(cx) {
5852 return;
5853 }
5854 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5855 for selection in self.selections.all::<Point>(cx) {
5856 let start = MultiBufferRow(selection.start.row);
5857 // Treat single line selections as if they include the next line. Otherwise this action
5858 // would do nothing for single line selections individual cursors.
5859 let end = if selection.start.row == selection.end.row {
5860 MultiBufferRow(selection.start.row + 1)
5861 } else {
5862 MultiBufferRow(selection.end.row)
5863 };
5864
5865 if let Some(last_row_range) = row_ranges.last_mut() {
5866 if start <= last_row_range.end {
5867 last_row_range.end = end;
5868 continue;
5869 }
5870 }
5871 row_ranges.push(start..end);
5872 }
5873
5874 let snapshot = self.buffer.read(cx).snapshot(cx);
5875 let mut cursor_positions = Vec::new();
5876 for row_range in &row_ranges {
5877 let anchor = snapshot.anchor_before(Point::new(
5878 row_range.end.previous_row().0,
5879 snapshot.line_len(row_range.end.previous_row()),
5880 ));
5881 cursor_positions.push(anchor..anchor);
5882 }
5883
5884 self.transact(cx, |this, cx| {
5885 for row_range in row_ranges.into_iter().rev() {
5886 for row in row_range.iter_rows().rev() {
5887 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5888 let next_line_row = row.next_row();
5889 let indent = snapshot.indent_size_for_line(next_line_row);
5890 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5891
5892 let replace = if snapshot.line_len(next_line_row) > indent.len {
5893 " "
5894 } else {
5895 ""
5896 };
5897
5898 this.buffer.update(cx, |buffer, cx| {
5899 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5900 });
5901 }
5902 }
5903
5904 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5905 s.select_anchor_ranges(cursor_positions)
5906 });
5907 });
5908 }
5909
5910 pub fn sort_lines_case_sensitive(
5911 &mut self,
5912 _: &SortLinesCaseSensitive,
5913 cx: &mut ViewContext<Self>,
5914 ) {
5915 self.manipulate_lines(cx, |lines| lines.sort())
5916 }
5917
5918 pub fn sort_lines_case_insensitive(
5919 &mut self,
5920 _: &SortLinesCaseInsensitive,
5921 cx: &mut ViewContext<Self>,
5922 ) {
5923 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5924 }
5925
5926 pub fn unique_lines_case_insensitive(
5927 &mut self,
5928 _: &UniqueLinesCaseInsensitive,
5929 cx: &mut ViewContext<Self>,
5930 ) {
5931 self.manipulate_lines(cx, |lines| {
5932 let mut seen = HashSet::default();
5933 lines.retain(|line| seen.insert(line.to_lowercase()));
5934 })
5935 }
5936
5937 pub fn unique_lines_case_sensitive(
5938 &mut self,
5939 _: &UniqueLinesCaseSensitive,
5940 cx: &mut ViewContext<Self>,
5941 ) {
5942 self.manipulate_lines(cx, |lines| {
5943 let mut seen = HashSet::default();
5944 lines.retain(|line| seen.insert(*line));
5945 })
5946 }
5947
5948 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
5949 let mut revert_changes = HashMap::default();
5950 let snapshot = self.snapshot(cx);
5951 for hunk in hunks_for_ranges(
5952 Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter(),
5953 &snapshot,
5954 ) {
5955 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5956 }
5957 if !revert_changes.is_empty() {
5958 self.transact(cx, |editor, cx| {
5959 editor.revert(revert_changes, cx);
5960 });
5961 }
5962 }
5963
5964 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
5965 let Some(project) = self.project.clone() else {
5966 return;
5967 };
5968 self.reload(project, cx).detach_and_notify_err(cx);
5969 }
5970
5971 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5972 let revert_changes = self.gather_revert_changes(&self.selections.all(cx), cx);
5973 if !revert_changes.is_empty() {
5974 self.transact(cx, |editor, cx| {
5975 editor.revert(revert_changes, cx);
5976 });
5977 }
5978 }
5979
5980 fn revert_hunk(&mut self, hunk: HoveredHunk, cx: &mut ViewContext<Editor>) {
5981 let snapshot = self.buffer.read(cx).read(cx);
5982 if let Some(hunk) = crate::hunk_diff::to_diff_hunk(&hunk, &snapshot) {
5983 drop(snapshot);
5984 let mut revert_changes = HashMap::default();
5985 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5986 if !revert_changes.is_empty() {
5987 self.revert(revert_changes, cx)
5988 }
5989 }
5990 }
5991
5992 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5993 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5994 let project_path = buffer.read(cx).project_path(cx)?;
5995 let project = self.project.as_ref()?.read(cx);
5996 let entry = project.entry_for_path(&project_path, cx)?;
5997 let parent = match &entry.canonical_path {
5998 Some(canonical_path) => canonical_path.to_path_buf(),
5999 None => project.absolute_path(&project_path, cx)?,
6000 }
6001 .parent()?
6002 .to_path_buf();
6003 Some(parent)
6004 }) {
6005 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6006 }
6007 }
6008
6009 fn gather_revert_changes(
6010 &mut self,
6011 selections: &[Selection<Point>],
6012 cx: &mut ViewContext<'_, Editor>,
6013 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6014 let mut revert_changes = HashMap::default();
6015 let snapshot = self.snapshot(cx);
6016 for hunk in hunks_for_selections(&snapshot, selections) {
6017 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6018 }
6019 revert_changes
6020 }
6021
6022 pub fn prepare_revert_change(
6023 &mut self,
6024 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6025 hunk: &MultiBufferDiffHunk,
6026 cx: &AppContext,
6027 ) -> Option<()> {
6028 let buffer = self.buffer.read(cx).buffer(hunk.buffer_id)?;
6029 let buffer = buffer.read(cx);
6030 let change_set = &self.diff_map.diff_bases.get(&hunk.buffer_id)?.change_set;
6031 let original_text = change_set
6032 .read(cx)
6033 .base_text
6034 .as_ref()?
6035 .read(cx)
6036 .as_rope()
6037 .slice(hunk.diff_base_byte_range.clone());
6038 let buffer_snapshot = buffer.snapshot();
6039 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6040 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6041 probe
6042 .0
6043 .start
6044 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6045 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6046 }) {
6047 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6048 Some(())
6049 } else {
6050 None
6051 }
6052 }
6053
6054 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6055 self.manipulate_lines(cx, |lines| lines.reverse())
6056 }
6057
6058 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6059 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6060 }
6061
6062 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6063 where
6064 Fn: FnMut(&mut Vec<&str>),
6065 {
6066 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6067 let buffer = self.buffer.read(cx).snapshot(cx);
6068
6069 let mut edits = Vec::new();
6070
6071 let selections = self.selections.all::<Point>(cx);
6072 let mut selections = selections.iter().peekable();
6073 let mut contiguous_row_selections = Vec::new();
6074 let mut new_selections = Vec::new();
6075 let mut added_lines = 0;
6076 let mut removed_lines = 0;
6077
6078 while let Some(selection) = selections.next() {
6079 let (start_row, end_row) = consume_contiguous_rows(
6080 &mut contiguous_row_selections,
6081 selection,
6082 &display_map,
6083 &mut selections,
6084 );
6085
6086 let start_point = Point::new(start_row.0, 0);
6087 let end_point = Point::new(
6088 end_row.previous_row().0,
6089 buffer.line_len(end_row.previous_row()),
6090 );
6091 let text = buffer
6092 .text_for_range(start_point..end_point)
6093 .collect::<String>();
6094
6095 let mut lines = text.split('\n').collect_vec();
6096
6097 let lines_before = lines.len();
6098 callback(&mut lines);
6099 let lines_after = lines.len();
6100
6101 edits.push((start_point..end_point, lines.join("\n")));
6102
6103 // Selections must change based on added and removed line count
6104 let start_row =
6105 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6106 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6107 new_selections.push(Selection {
6108 id: selection.id,
6109 start: start_row,
6110 end: end_row,
6111 goal: SelectionGoal::None,
6112 reversed: selection.reversed,
6113 });
6114
6115 if lines_after > lines_before {
6116 added_lines += lines_after - lines_before;
6117 } else if lines_before > lines_after {
6118 removed_lines += lines_before - lines_after;
6119 }
6120 }
6121
6122 self.transact(cx, |this, cx| {
6123 let buffer = this.buffer.update(cx, |buffer, cx| {
6124 buffer.edit(edits, None, cx);
6125 buffer.snapshot(cx)
6126 });
6127
6128 // Recalculate offsets on newly edited buffer
6129 let new_selections = new_selections
6130 .iter()
6131 .map(|s| {
6132 let start_point = Point::new(s.start.0, 0);
6133 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6134 Selection {
6135 id: s.id,
6136 start: buffer.point_to_offset(start_point),
6137 end: buffer.point_to_offset(end_point),
6138 goal: s.goal,
6139 reversed: s.reversed,
6140 }
6141 })
6142 .collect();
6143
6144 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6145 s.select(new_selections);
6146 });
6147
6148 this.request_autoscroll(Autoscroll::fit(), cx);
6149 });
6150 }
6151
6152 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6153 self.manipulate_text(cx, |text| text.to_uppercase())
6154 }
6155
6156 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6157 self.manipulate_text(cx, |text| text.to_lowercase())
6158 }
6159
6160 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6161 self.manipulate_text(cx, |text| {
6162 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6163 // https://github.com/rutrum/convert-case/issues/16
6164 text.split('\n')
6165 .map(|line| line.to_case(Case::Title))
6166 .join("\n")
6167 })
6168 }
6169
6170 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6171 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6172 }
6173
6174 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6175 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6176 }
6177
6178 pub fn convert_to_upper_camel_case(
6179 &mut self,
6180 _: &ConvertToUpperCamelCase,
6181 cx: &mut ViewContext<Self>,
6182 ) {
6183 self.manipulate_text(cx, |text| {
6184 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6185 // https://github.com/rutrum/convert-case/issues/16
6186 text.split('\n')
6187 .map(|line| line.to_case(Case::UpperCamel))
6188 .join("\n")
6189 })
6190 }
6191
6192 pub fn convert_to_lower_camel_case(
6193 &mut self,
6194 _: &ConvertToLowerCamelCase,
6195 cx: &mut ViewContext<Self>,
6196 ) {
6197 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6198 }
6199
6200 pub fn convert_to_opposite_case(
6201 &mut self,
6202 _: &ConvertToOppositeCase,
6203 cx: &mut ViewContext<Self>,
6204 ) {
6205 self.manipulate_text(cx, |text| {
6206 text.chars()
6207 .fold(String::with_capacity(text.len()), |mut t, c| {
6208 if c.is_uppercase() {
6209 t.extend(c.to_lowercase());
6210 } else {
6211 t.extend(c.to_uppercase());
6212 }
6213 t
6214 })
6215 })
6216 }
6217
6218 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6219 where
6220 Fn: FnMut(&str) -> String,
6221 {
6222 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6223 let buffer = self.buffer.read(cx).snapshot(cx);
6224
6225 let mut new_selections = Vec::new();
6226 let mut edits = Vec::new();
6227 let mut selection_adjustment = 0i32;
6228
6229 for selection in self.selections.all::<usize>(cx) {
6230 let selection_is_empty = selection.is_empty();
6231
6232 let (start, end) = if selection_is_empty {
6233 let word_range = movement::surrounding_word(
6234 &display_map,
6235 selection.start.to_display_point(&display_map),
6236 );
6237 let start = word_range.start.to_offset(&display_map, Bias::Left);
6238 let end = word_range.end.to_offset(&display_map, Bias::Left);
6239 (start, end)
6240 } else {
6241 (selection.start, selection.end)
6242 };
6243
6244 let text = buffer.text_for_range(start..end).collect::<String>();
6245 let old_length = text.len() as i32;
6246 let text = callback(&text);
6247
6248 new_selections.push(Selection {
6249 start: (start as i32 - selection_adjustment) as usize,
6250 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6251 goal: SelectionGoal::None,
6252 ..selection
6253 });
6254
6255 selection_adjustment += old_length - text.len() as i32;
6256
6257 edits.push((start..end, text));
6258 }
6259
6260 self.transact(cx, |this, cx| {
6261 this.buffer.update(cx, |buffer, cx| {
6262 buffer.edit(edits, None, cx);
6263 });
6264
6265 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6266 s.select(new_selections);
6267 });
6268
6269 this.request_autoscroll(Autoscroll::fit(), cx);
6270 });
6271 }
6272
6273 pub fn duplicate(&mut self, upwards: bool, whole_lines: bool, cx: &mut ViewContext<Self>) {
6274 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6275 let buffer = &display_map.buffer_snapshot;
6276 let selections = self.selections.all::<Point>(cx);
6277
6278 let mut edits = Vec::new();
6279 let mut selections_iter = selections.iter().peekable();
6280 while let Some(selection) = selections_iter.next() {
6281 let mut rows = selection.spanned_rows(false, &display_map);
6282 // duplicate line-wise
6283 if whole_lines || selection.start == selection.end {
6284 // Avoid duplicating the same lines twice.
6285 while let Some(next_selection) = selections_iter.peek() {
6286 let next_rows = next_selection.spanned_rows(false, &display_map);
6287 if next_rows.start < rows.end {
6288 rows.end = next_rows.end;
6289 selections_iter.next().unwrap();
6290 } else {
6291 break;
6292 }
6293 }
6294
6295 // Copy the text from the selected row region and splice it either at the start
6296 // or end of the region.
6297 let start = Point::new(rows.start.0, 0);
6298 let end = Point::new(
6299 rows.end.previous_row().0,
6300 buffer.line_len(rows.end.previous_row()),
6301 );
6302 let text = buffer
6303 .text_for_range(start..end)
6304 .chain(Some("\n"))
6305 .collect::<String>();
6306 let insert_location = if upwards {
6307 Point::new(rows.end.0, 0)
6308 } else {
6309 start
6310 };
6311 edits.push((insert_location..insert_location, text));
6312 } else {
6313 // duplicate character-wise
6314 let start = selection.start;
6315 let end = selection.end;
6316 let text = buffer.text_for_range(start..end).collect::<String>();
6317 edits.push((selection.end..selection.end, text));
6318 }
6319 }
6320
6321 self.transact(cx, |this, cx| {
6322 this.buffer.update(cx, |buffer, cx| {
6323 buffer.edit(edits, None, cx);
6324 });
6325
6326 this.request_autoscroll(Autoscroll::fit(), cx);
6327 });
6328 }
6329
6330 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6331 self.duplicate(true, true, cx);
6332 }
6333
6334 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6335 self.duplicate(false, true, cx);
6336 }
6337
6338 pub fn duplicate_selection(&mut self, _: &DuplicateSelection, cx: &mut ViewContext<Self>) {
6339 self.duplicate(false, false, cx);
6340 }
6341
6342 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6343 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6344 let buffer = self.buffer.read(cx).snapshot(cx);
6345
6346 let mut edits = Vec::new();
6347 let mut unfold_ranges = Vec::new();
6348 let mut refold_creases = Vec::new();
6349
6350 let selections = self.selections.all::<Point>(cx);
6351 let mut selections = selections.iter().peekable();
6352 let mut contiguous_row_selections = Vec::new();
6353 let mut new_selections = Vec::new();
6354
6355 while let Some(selection) = selections.next() {
6356 // Find all the selections that span a contiguous row range
6357 let (start_row, end_row) = consume_contiguous_rows(
6358 &mut contiguous_row_selections,
6359 selection,
6360 &display_map,
6361 &mut selections,
6362 );
6363
6364 // Move the text spanned by the row range to be before the line preceding the row range
6365 if start_row.0 > 0 {
6366 let range_to_move = Point::new(
6367 start_row.previous_row().0,
6368 buffer.line_len(start_row.previous_row()),
6369 )
6370 ..Point::new(
6371 end_row.previous_row().0,
6372 buffer.line_len(end_row.previous_row()),
6373 );
6374 let insertion_point = display_map
6375 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6376 .0;
6377
6378 // Don't move lines across excerpts
6379 if buffer
6380 .excerpt_boundaries_in_range((
6381 Bound::Excluded(insertion_point),
6382 Bound::Included(range_to_move.end),
6383 ))
6384 .next()
6385 .is_none()
6386 {
6387 let text = buffer
6388 .text_for_range(range_to_move.clone())
6389 .flat_map(|s| s.chars())
6390 .skip(1)
6391 .chain(['\n'])
6392 .collect::<String>();
6393
6394 edits.push((
6395 buffer.anchor_after(range_to_move.start)
6396 ..buffer.anchor_before(range_to_move.end),
6397 String::new(),
6398 ));
6399 let insertion_anchor = buffer.anchor_after(insertion_point);
6400 edits.push((insertion_anchor..insertion_anchor, text));
6401
6402 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6403
6404 // Move selections up
6405 new_selections.extend(contiguous_row_selections.drain(..).map(
6406 |mut selection| {
6407 selection.start.row -= row_delta;
6408 selection.end.row -= row_delta;
6409 selection
6410 },
6411 ));
6412
6413 // Move folds up
6414 unfold_ranges.push(range_to_move.clone());
6415 for fold in display_map.folds_in_range(
6416 buffer.anchor_before(range_to_move.start)
6417 ..buffer.anchor_after(range_to_move.end),
6418 ) {
6419 let mut start = fold.range.start.to_point(&buffer);
6420 let mut end = fold.range.end.to_point(&buffer);
6421 start.row -= row_delta;
6422 end.row -= row_delta;
6423 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6424 }
6425 }
6426 }
6427
6428 // If we didn't move line(s), preserve the existing selections
6429 new_selections.append(&mut contiguous_row_selections);
6430 }
6431
6432 self.transact(cx, |this, cx| {
6433 this.unfold_ranges(&unfold_ranges, true, true, cx);
6434 this.buffer.update(cx, |buffer, cx| {
6435 for (range, text) in edits {
6436 buffer.edit([(range, text)], None, cx);
6437 }
6438 });
6439 this.fold_creases(refold_creases, true, cx);
6440 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6441 s.select(new_selections);
6442 })
6443 });
6444 }
6445
6446 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6447 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6448 let buffer = self.buffer.read(cx).snapshot(cx);
6449
6450 let mut edits = Vec::new();
6451 let mut unfold_ranges = Vec::new();
6452 let mut refold_creases = Vec::new();
6453
6454 let selections = self.selections.all::<Point>(cx);
6455 let mut selections = selections.iter().peekable();
6456 let mut contiguous_row_selections = Vec::new();
6457 let mut new_selections = Vec::new();
6458
6459 while let Some(selection) = selections.next() {
6460 // Find all the selections that span a contiguous row range
6461 let (start_row, end_row) = consume_contiguous_rows(
6462 &mut contiguous_row_selections,
6463 selection,
6464 &display_map,
6465 &mut selections,
6466 );
6467
6468 // Move the text spanned by the row range to be after the last line of the row range
6469 if end_row.0 <= buffer.max_point().row {
6470 let range_to_move =
6471 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6472 let insertion_point = display_map
6473 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6474 .0;
6475
6476 // Don't move lines across excerpt boundaries
6477 if buffer
6478 .excerpt_boundaries_in_range((
6479 Bound::Excluded(range_to_move.start),
6480 Bound::Included(insertion_point),
6481 ))
6482 .next()
6483 .is_none()
6484 {
6485 let mut text = String::from("\n");
6486 text.extend(buffer.text_for_range(range_to_move.clone()));
6487 text.pop(); // Drop trailing newline
6488 edits.push((
6489 buffer.anchor_after(range_to_move.start)
6490 ..buffer.anchor_before(range_to_move.end),
6491 String::new(),
6492 ));
6493 let insertion_anchor = buffer.anchor_after(insertion_point);
6494 edits.push((insertion_anchor..insertion_anchor, text));
6495
6496 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6497
6498 // Move selections down
6499 new_selections.extend(contiguous_row_selections.drain(..).map(
6500 |mut selection| {
6501 selection.start.row += row_delta;
6502 selection.end.row += row_delta;
6503 selection
6504 },
6505 ));
6506
6507 // Move folds down
6508 unfold_ranges.push(range_to_move.clone());
6509 for fold in display_map.folds_in_range(
6510 buffer.anchor_before(range_to_move.start)
6511 ..buffer.anchor_after(range_to_move.end),
6512 ) {
6513 let mut start = fold.range.start.to_point(&buffer);
6514 let mut end = fold.range.end.to_point(&buffer);
6515 start.row += row_delta;
6516 end.row += row_delta;
6517 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6518 }
6519 }
6520 }
6521
6522 // If we didn't move line(s), preserve the existing selections
6523 new_selections.append(&mut contiguous_row_selections);
6524 }
6525
6526 self.transact(cx, |this, cx| {
6527 this.unfold_ranges(&unfold_ranges, true, true, cx);
6528 this.buffer.update(cx, |buffer, cx| {
6529 for (range, text) in edits {
6530 buffer.edit([(range, text)], None, cx);
6531 }
6532 });
6533 this.fold_creases(refold_creases, true, cx);
6534 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6535 });
6536 }
6537
6538 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6539 let text_layout_details = &self.text_layout_details(cx);
6540 self.transact(cx, |this, cx| {
6541 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6542 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6543 let line_mode = s.line_mode;
6544 s.move_with(|display_map, selection| {
6545 if !selection.is_empty() || line_mode {
6546 return;
6547 }
6548
6549 let mut head = selection.head();
6550 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6551 if head.column() == display_map.line_len(head.row()) {
6552 transpose_offset = display_map
6553 .buffer_snapshot
6554 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6555 }
6556
6557 if transpose_offset == 0 {
6558 return;
6559 }
6560
6561 *head.column_mut() += 1;
6562 head = display_map.clip_point(head, Bias::Right);
6563 let goal = SelectionGoal::HorizontalPosition(
6564 display_map
6565 .x_for_display_point(head, text_layout_details)
6566 .into(),
6567 );
6568 selection.collapse_to(head, goal);
6569
6570 let transpose_start = display_map
6571 .buffer_snapshot
6572 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6573 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6574 let transpose_end = display_map
6575 .buffer_snapshot
6576 .clip_offset(transpose_offset + 1, Bias::Right);
6577 if let Some(ch) =
6578 display_map.buffer_snapshot.chars_at(transpose_start).next()
6579 {
6580 edits.push((transpose_start..transpose_offset, String::new()));
6581 edits.push((transpose_end..transpose_end, ch.to_string()));
6582 }
6583 }
6584 });
6585 edits
6586 });
6587 this.buffer
6588 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6589 let selections = this.selections.all::<usize>(cx);
6590 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6591 s.select(selections);
6592 });
6593 });
6594 }
6595
6596 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6597 self.rewrap_impl(IsVimMode::No, cx)
6598 }
6599
6600 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
6601 let buffer = self.buffer.read(cx).snapshot(cx);
6602 let selections = self.selections.all::<Point>(cx);
6603 let mut selections = selections.iter().peekable();
6604
6605 let mut edits = Vec::new();
6606 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6607
6608 while let Some(selection) = selections.next() {
6609 let mut start_row = selection.start.row;
6610 let mut end_row = selection.end.row;
6611
6612 // Skip selections that overlap with a range that has already been rewrapped.
6613 let selection_range = start_row..end_row;
6614 if rewrapped_row_ranges
6615 .iter()
6616 .any(|range| range.overlaps(&selection_range))
6617 {
6618 continue;
6619 }
6620
6621 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
6622
6623 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6624 match language_scope.language_name().0.as_ref() {
6625 "Markdown" | "Plain Text" => {
6626 should_rewrap = true;
6627 }
6628 _ => {}
6629 }
6630 }
6631
6632 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
6633
6634 // Since not all lines in the selection may be at the same indent
6635 // level, choose the indent size that is the most common between all
6636 // of the lines.
6637 //
6638 // If there is a tie, we use the deepest indent.
6639 let (indent_size, indent_end) = {
6640 let mut indent_size_occurrences = HashMap::default();
6641 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6642
6643 for row in start_row..=end_row {
6644 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6645 rows_by_indent_size.entry(indent).or_default().push(row);
6646 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6647 }
6648
6649 let indent_size = indent_size_occurrences
6650 .into_iter()
6651 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
6652 .map(|(indent, _)| indent)
6653 .unwrap_or_default();
6654 let row = rows_by_indent_size[&indent_size][0];
6655 let indent_end = Point::new(row, indent_size.len);
6656
6657 (indent_size, indent_end)
6658 };
6659
6660 let mut line_prefix = indent_size.chars().collect::<String>();
6661
6662 if let Some(comment_prefix) =
6663 buffer
6664 .language_scope_at(selection.head())
6665 .and_then(|language| {
6666 language
6667 .line_comment_prefixes()
6668 .iter()
6669 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6670 .cloned()
6671 })
6672 {
6673 line_prefix.push_str(&comment_prefix);
6674 should_rewrap = true;
6675 }
6676
6677 if !should_rewrap {
6678 continue;
6679 }
6680
6681 if selection.is_empty() {
6682 'expand_upwards: while start_row > 0 {
6683 let prev_row = start_row - 1;
6684 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6685 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6686 {
6687 start_row = prev_row;
6688 } else {
6689 break 'expand_upwards;
6690 }
6691 }
6692
6693 'expand_downwards: while end_row < buffer.max_point().row {
6694 let next_row = end_row + 1;
6695 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6696 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6697 {
6698 end_row = next_row;
6699 } else {
6700 break 'expand_downwards;
6701 }
6702 }
6703 }
6704
6705 let start = Point::new(start_row, 0);
6706 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6707 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6708 let Some(lines_without_prefixes) = selection_text
6709 .lines()
6710 .map(|line| {
6711 line.strip_prefix(&line_prefix)
6712 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6713 .ok_or_else(|| {
6714 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6715 })
6716 })
6717 .collect::<Result<Vec<_>, _>>()
6718 .log_err()
6719 else {
6720 continue;
6721 };
6722
6723 let wrap_column = buffer
6724 .settings_at(Point::new(start_row, 0), cx)
6725 .preferred_line_length as usize;
6726 let wrapped_text = wrap_with_prefix(
6727 line_prefix,
6728 lines_without_prefixes.join(" "),
6729 wrap_column,
6730 tab_size,
6731 );
6732
6733 // TODO: should always use char-based diff while still supporting cursor behavior that
6734 // matches vim.
6735 let diff = match is_vim_mode {
6736 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
6737 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
6738 };
6739 let mut offset = start.to_offset(&buffer);
6740 let mut moved_since_edit = true;
6741
6742 for change in diff.iter_all_changes() {
6743 let value = change.value();
6744 match change.tag() {
6745 ChangeTag::Equal => {
6746 offset += value.len();
6747 moved_since_edit = true;
6748 }
6749 ChangeTag::Delete => {
6750 let start = buffer.anchor_after(offset);
6751 let end = buffer.anchor_before(offset + value.len());
6752
6753 if moved_since_edit {
6754 edits.push((start..end, String::new()));
6755 } else {
6756 edits.last_mut().unwrap().0.end = end;
6757 }
6758
6759 offset += value.len();
6760 moved_since_edit = false;
6761 }
6762 ChangeTag::Insert => {
6763 if moved_since_edit {
6764 let anchor = buffer.anchor_after(offset);
6765 edits.push((anchor..anchor, value.to_string()));
6766 } else {
6767 edits.last_mut().unwrap().1.push_str(value);
6768 }
6769
6770 moved_since_edit = false;
6771 }
6772 }
6773 }
6774
6775 rewrapped_row_ranges.push(start_row..=end_row);
6776 }
6777
6778 self.buffer
6779 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6780 }
6781
6782 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
6783 let mut text = String::new();
6784 let buffer = self.buffer.read(cx).snapshot(cx);
6785 let mut selections = self.selections.all::<Point>(cx);
6786 let mut clipboard_selections = Vec::with_capacity(selections.len());
6787 {
6788 let max_point = buffer.max_point();
6789 let mut is_first = true;
6790 for selection in &mut selections {
6791 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6792 if is_entire_line {
6793 selection.start = Point::new(selection.start.row, 0);
6794 if !selection.is_empty() && selection.end.column == 0 {
6795 selection.end = cmp::min(max_point, selection.end);
6796 } else {
6797 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6798 }
6799 selection.goal = SelectionGoal::None;
6800 }
6801 if is_first {
6802 is_first = false;
6803 } else {
6804 text += "\n";
6805 }
6806 let mut len = 0;
6807 for chunk in buffer.text_for_range(selection.start..selection.end) {
6808 text.push_str(chunk);
6809 len += chunk.len();
6810 }
6811 clipboard_selections.push(ClipboardSelection {
6812 len,
6813 is_entire_line,
6814 first_line_indent: buffer
6815 .indent_size_for_line(MultiBufferRow(selection.start.row))
6816 .len,
6817 });
6818 }
6819 }
6820
6821 self.transact(cx, |this, cx| {
6822 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6823 s.select(selections);
6824 });
6825 this.insert("", cx);
6826 });
6827 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
6828 }
6829
6830 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6831 let item = self.cut_common(cx);
6832 cx.write_to_clipboard(item);
6833 }
6834
6835 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
6836 self.change_selections(None, cx, |s| {
6837 s.move_with(|snapshot, sel| {
6838 if sel.is_empty() {
6839 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
6840 }
6841 });
6842 });
6843 let item = self.cut_common(cx);
6844 cx.set_global(KillRing(item))
6845 }
6846
6847 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
6848 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
6849 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
6850 (kill_ring.text().to_string(), kill_ring.metadata_json())
6851 } else {
6852 return;
6853 }
6854 } else {
6855 return;
6856 };
6857 self.do_paste(&text, metadata, false, cx);
6858 }
6859
6860 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6861 let selections = self.selections.all::<Point>(cx);
6862 let buffer = self.buffer.read(cx).read(cx);
6863 let mut text = String::new();
6864
6865 let mut clipboard_selections = Vec::with_capacity(selections.len());
6866 {
6867 let max_point = buffer.max_point();
6868 let mut is_first = true;
6869 for selection in selections.iter() {
6870 let mut start = selection.start;
6871 let mut end = selection.end;
6872 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6873 if is_entire_line {
6874 start = Point::new(start.row, 0);
6875 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6876 }
6877 if is_first {
6878 is_first = false;
6879 } else {
6880 text += "\n";
6881 }
6882 let mut len = 0;
6883 for chunk in buffer.text_for_range(start..end) {
6884 text.push_str(chunk);
6885 len += chunk.len();
6886 }
6887 clipboard_selections.push(ClipboardSelection {
6888 len,
6889 is_entire_line,
6890 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6891 });
6892 }
6893 }
6894
6895 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6896 text,
6897 clipboard_selections,
6898 ));
6899 }
6900
6901 pub fn do_paste(
6902 &mut self,
6903 text: &String,
6904 clipboard_selections: Option<Vec<ClipboardSelection>>,
6905 handle_entire_lines: bool,
6906 cx: &mut ViewContext<Self>,
6907 ) {
6908 if self.read_only(cx) {
6909 return;
6910 }
6911
6912 let clipboard_text = Cow::Borrowed(text);
6913
6914 self.transact(cx, |this, cx| {
6915 if let Some(mut clipboard_selections) = clipboard_selections {
6916 let old_selections = this.selections.all::<usize>(cx);
6917 let all_selections_were_entire_line =
6918 clipboard_selections.iter().all(|s| s.is_entire_line);
6919 let first_selection_indent_column =
6920 clipboard_selections.first().map(|s| s.first_line_indent);
6921 if clipboard_selections.len() != old_selections.len() {
6922 clipboard_selections.drain(..);
6923 }
6924 let cursor_offset = this.selections.last::<usize>(cx).head();
6925 let mut auto_indent_on_paste = true;
6926
6927 this.buffer.update(cx, |buffer, cx| {
6928 let snapshot = buffer.read(cx);
6929 auto_indent_on_paste =
6930 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
6931
6932 let mut start_offset = 0;
6933 let mut edits = Vec::new();
6934 let mut original_indent_columns = Vec::new();
6935 for (ix, selection) in old_selections.iter().enumerate() {
6936 let to_insert;
6937 let entire_line;
6938 let original_indent_column;
6939 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6940 let end_offset = start_offset + clipboard_selection.len;
6941 to_insert = &clipboard_text[start_offset..end_offset];
6942 entire_line = clipboard_selection.is_entire_line;
6943 start_offset = end_offset + 1;
6944 original_indent_column = Some(clipboard_selection.first_line_indent);
6945 } else {
6946 to_insert = clipboard_text.as_str();
6947 entire_line = all_selections_were_entire_line;
6948 original_indent_column = first_selection_indent_column
6949 }
6950
6951 // If the corresponding selection was empty when this slice of the
6952 // clipboard text was written, then the entire line containing the
6953 // selection was copied. If this selection is also currently empty,
6954 // then paste the line before the current line of the buffer.
6955 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6956 let column = selection.start.to_point(&snapshot).column as usize;
6957 let line_start = selection.start - column;
6958 line_start..line_start
6959 } else {
6960 selection.range()
6961 };
6962
6963 edits.push((range, to_insert));
6964 original_indent_columns.extend(original_indent_column);
6965 }
6966 drop(snapshot);
6967
6968 buffer.edit(
6969 edits,
6970 if auto_indent_on_paste {
6971 Some(AutoindentMode::Block {
6972 original_indent_columns,
6973 })
6974 } else {
6975 None
6976 },
6977 cx,
6978 );
6979 });
6980
6981 let selections = this.selections.all::<usize>(cx);
6982 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6983 } else {
6984 this.insert(&clipboard_text, cx);
6985 }
6986 });
6987 }
6988
6989 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6990 if let Some(item) = cx.read_from_clipboard() {
6991 let entries = item.entries();
6992
6993 match entries.first() {
6994 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
6995 // of all the pasted entries.
6996 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
6997 .do_paste(
6998 clipboard_string.text(),
6999 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7000 true,
7001 cx,
7002 ),
7003 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7004 }
7005 }
7006 }
7007
7008 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7009 if self.read_only(cx) {
7010 return;
7011 }
7012
7013 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7014 if let Some((selections, _)) =
7015 self.selection_history.transaction(transaction_id).cloned()
7016 {
7017 self.change_selections(None, cx, |s| {
7018 s.select_anchors(selections.to_vec());
7019 });
7020 }
7021 self.request_autoscroll(Autoscroll::fit(), cx);
7022 self.unmark_text(cx);
7023 self.refresh_inline_completion(true, false, cx);
7024 cx.emit(EditorEvent::Edited { transaction_id });
7025 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7026 }
7027 }
7028
7029 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7030 if self.read_only(cx) {
7031 return;
7032 }
7033
7034 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7035 if let Some((_, Some(selections))) =
7036 self.selection_history.transaction(transaction_id).cloned()
7037 {
7038 self.change_selections(None, cx, |s| {
7039 s.select_anchors(selections.to_vec());
7040 });
7041 }
7042 self.request_autoscroll(Autoscroll::fit(), cx);
7043 self.unmark_text(cx);
7044 self.refresh_inline_completion(true, false, cx);
7045 cx.emit(EditorEvent::Edited { transaction_id });
7046 }
7047 }
7048
7049 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7050 self.buffer
7051 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7052 }
7053
7054 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7055 self.buffer
7056 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7057 }
7058
7059 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7060 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7061 let line_mode = s.line_mode;
7062 s.move_with(|map, selection| {
7063 let cursor = if selection.is_empty() && !line_mode {
7064 movement::left(map, selection.start)
7065 } else {
7066 selection.start
7067 };
7068 selection.collapse_to(cursor, SelectionGoal::None);
7069 });
7070 })
7071 }
7072
7073 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7074 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7075 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7076 })
7077 }
7078
7079 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7080 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7081 let line_mode = s.line_mode;
7082 s.move_with(|map, selection| {
7083 let cursor = if selection.is_empty() && !line_mode {
7084 movement::right(map, selection.end)
7085 } else {
7086 selection.end
7087 };
7088 selection.collapse_to(cursor, SelectionGoal::None)
7089 });
7090 })
7091 }
7092
7093 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7094 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7095 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7096 })
7097 }
7098
7099 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7100 if self.take_rename(true, cx).is_some() {
7101 return;
7102 }
7103
7104 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7105 cx.propagate();
7106 return;
7107 }
7108
7109 let text_layout_details = &self.text_layout_details(cx);
7110 let selection_count = self.selections.count();
7111 let first_selection = self.selections.first_anchor();
7112
7113 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7114 let line_mode = s.line_mode;
7115 s.move_with(|map, selection| {
7116 if !selection.is_empty() && !line_mode {
7117 selection.goal = SelectionGoal::None;
7118 }
7119 let (cursor, goal) = movement::up(
7120 map,
7121 selection.start,
7122 selection.goal,
7123 false,
7124 text_layout_details,
7125 );
7126 selection.collapse_to(cursor, goal);
7127 });
7128 });
7129
7130 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7131 {
7132 cx.propagate();
7133 }
7134 }
7135
7136 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7137 if self.take_rename(true, cx).is_some() {
7138 return;
7139 }
7140
7141 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7142 cx.propagate();
7143 return;
7144 }
7145
7146 let text_layout_details = &self.text_layout_details(cx);
7147
7148 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7149 let line_mode = s.line_mode;
7150 s.move_with(|map, selection| {
7151 if !selection.is_empty() && !line_mode {
7152 selection.goal = SelectionGoal::None;
7153 }
7154 let (cursor, goal) = movement::up_by_rows(
7155 map,
7156 selection.start,
7157 action.lines,
7158 selection.goal,
7159 false,
7160 text_layout_details,
7161 );
7162 selection.collapse_to(cursor, goal);
7163 });
7164 })
7165 }
7166
7167 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7168 if self.take_rename(true, cx).is_some() {
7169 return;
7170 }
7171
7172 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7173 cx.propagate();
7174 return;
7175 }
7176
7177 let text_layout_details = &self.text_layout_details(cx);
7178
7179 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7180 let line_mode = s.line_mode;
7181 s.move_with(|map, selection| {
7182 if !selection.is_empty() && !line_mode {
7183 selection.goal = SelectionGoal::None;
7184 }
7185 let (cursor, goal) = movement::down_by_rows(
7186 map,
7187 selection.start,
7188 action.lines,
7189 selection.goal,
7190 false,
7191 text_layout_details,
7192 );
7193 selection.collapse_to(cursor, goal);
7194 });
7195 })
7196 }
7197
7198 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7199 let text_layout_details = &self.text_layout_details(cx);
7200 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7201 s.move_heads_with(|map, head, goal| {
7202 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7203 })
7204 })
7205 }
7206
7207 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7208 let text_layout_details = &self.text_layout_details(cx);
7209 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7210 s.move_heads_with(|map, head, goal| {
7211 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7212 })
7213 })
7214 }
7215
7216 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7217 let Some(row_count) = self.visible_row_count() else {
7218 return;
7219 };
7220
7221 let text_layout_details = &self.text_layout_details(cx);
7222
7223 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7224 s.move_heads_with(|map, head, goal| {
7225 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7226 })
7227 })
7228 }
7229
7230 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7231 if self.take_rename(true, cx).is_some() {
7232 return;
7233 }
7234
7235 if self
7236 .context_menu
7237 .borrow_mut()
7238 .as_mut()
7239 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7240 .unwrap_or(false)
7241 {
7242 return;
7243 }
7244
7245 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7246 cx.propagate();
7247 return;
7248 }
7249
7250 let Some(row_count) = self.visible_row_count() else {
7251 return;
7252 };
7253
7254 let autoscroll = if action.center_cursor {
7255 Autoscroll::center()
7256 } else {
7257 Autoscroll::fit()
7258 };
7259
7260 let text_layout_details = &self.text_layout_details(cx);
7261
7262 self.change_selections(Some(autoscroll), cx, |s| {
7263 let line_mode = s.line_mode;
7264 s.move_with(|map, selection| {
7265 if !selection.is_empty() && !line_mode {
7266 selection.goal = SelectionGoal::None;
7267 }
7268 let (cursor, goal) = movement::up_by_rows(
7269 map,
7270 selection.end,
7271 row_count,
7272 selection.goal,
7273 false,
7274 text_layout_details,
7275 );
7276 selection.collapse_to(cursor, goal);
7277 });
7278 });
7279 }
7280
7281 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7282 let text_layout_details = &self.text_layout_details(cx);
7283 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7284 s.move_heads_with(|map, head, goal| {
7285 movement::up(map, head, goal, false, text_layout_details)
7286 })
7287 })
7288 }
7289
7290 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7291 self.take_rename(true, cx);
7292
7293 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7294 cx.propagate();
7295 return;
7296 }
7297
7298 let text_layout_details = &self.text_layout_details(cx);
7299 let selection_count = self.selections.count();
7300 let first_selection = self.selections.first_anchor();
7301
7302 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7303 let line_mode = s.line_mode;
7304 s.move_with(|map, selection| {
7305 if !selection.is_empty() && !line_mode {
7306 selection.goal = SelectionGoal::None;
7307 }
7308 let (cursor, goal) = movement::down(
7309 map,
7310 selection.end,
7311 selection.goal,
7312 false,
7313 text_layout_details,
7314 );
7315 selection.collapse_to(cursor, goal);
7316 });
7317 });
7318
7319 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7320 {
7321 cx.propagate();
7322 }
7323 }
7324
7325 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7326 let Some(row_count) = self.visible_row_count() else {
7327 return;
7328 };
7329
7330 let text_layout_details = &self.text_layout_details(cx);
7331
7332 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7333 s.move_heads_with(|map, head, goal| {
7334 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7335 })
7336 })
7337 }
7338
7339 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7340 if self.take_rename(true, cx).is_some() {
7341 return;
7342 }
7343
7344 if self
7345 .context_menu
7346 .borrow_mut()
7347 .as_mut()
7348 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7349 .unwrap_or(false)
7350 {
7351 return;
7352 }
7353
7354 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7355 cx.propagate();
7356 return;
7357 }
7358
7359 let Some(row_count) = self.visible_row_count() else {
7360 return;
7361 };
7362
7363 let autoscroll = if action.center_cursor {
7364 Autoscroll::center()
7365 } else {
7366 Autoscroll::fit()
7367 };
7368
7369 let text_layout_details = &self.text_layout_details(cx);
7370 self.change_selections(Some(autoscroll), cx, |s| {
7371 let line_mode = s.line_mode;
7372 s.move_with(|map, selection| {
7373 if !selection.is_empty() && !line_mode {
7374 selection.goal = SelectionGoal::None;
7375 }
7376 let (cursor, goal) = movement::down_by_rows(
7377 map,
7378 selection.end,
7379 row_count,
7380 selection.goal,
7381 false,
7382 text_layout_details,
7383 );
7384 selection.collapse_to(cursor, goal);
7385 });
7386 });
7387 }
7388
7389 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7390 let text_layout_details = &self.text_layout_details(cx);
7391 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7392 s.move_heads_with(|map, head, goal| {
7393 movement::down(map, head, goal, false, text_layout_details)
7394 })
7395 });
7396 }
7397
7398 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7399 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7400 context_menu.select_first(self.completion_provider.as_deref(), cx);
7401 }
7402 }
7403
7404 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7405 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7406 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7407 }
7408 }
7409
7410 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7411 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7412 context_menu.select_next(self.completion_provider.as_deref(), cx);
7413 }
7414 }
7415
7416 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7417 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7418 context_menu.select_last(self.completion_provider.as_deref(), cx);
7419 }
7420 }
7421
7422 pub fn move_to_previous_word_start(
7423 &mut self,
7424 _: &MoveToPreviousWordStart,
7425 cx: &mut ViewContext<Self>,
7426 ) {
7427 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7428 s.move_cursors_with(|map, head, _| {
7429 (
7430 movement::previous_word_start(map, head),
7431 SelectionGoal::None,
7432 )
7433 });
7434 })
7435 }
7436
7437 pub fn move_to_previous_subword_start(
7438 &mut self,
7439 _: &MoveToPreviousSubwordStart,
7440 cx: &mut ViewContext<Self>,
7441 ) {
7442 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7443 s.move_cursors_with(|map, head, _| {
7444 (
7445 movement::previous_subword_start(map, head),
7446 SelectionGoal::None,
7447 )
7448 });
7449 })
7450 }
7451
7452 pub fn select_to_previous_word_start(
7453 &mut self,
7454 _: &SelectToPreviousWordStart,
7455 cx: &mut ViewContext<Self>,
7456 ) {
7457 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7458 s.move_heads_with(|map, head, _| {
7459 (
7460 movement::previous_word_start(map, head),
7461 SelectionGoal::None,
7462 )
7463 });
7464 })
7465 }
7466
7467 pub fn select_to_previous_subword_start(
7468 &mut self,
7469 _: &SelectToPreviousSubwordStart,
7470 cx: &mut ViewContext<Self>,
7471 ) {
7472 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7473 s.move_heads_with(|map, head, _| {
7474 (
7475 movement::previous_subword_start(map, head),
7476 SelectionGoal::None,
7477 )
7478 });
7479 })
7480 }
7481
7482 pub fn delete_to_previous_word_start(
7483 &mut self,
7484 action: &DeleteToPreviousWordStart,
7485 cx: &mut ViewContext<Self>,
7486 ) {
7487 self.transact(cx, |this, cx| {
7488 this.select_autoclose_pair(cx);
7489 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7490 let line_mode = s.line_mode;
7491 s.move_with(|map, selection| {
7492 if selection.is_empty() && !line_mode {
7493 let cursor = if action.ignore_newlines {
7494 movement::previous_word_start(map, selection.head())
7495 } else {
7496 movement::previous_word_start_or_newline(map, selection.head())
7497 };
7498 selection.set_head(cursor, SelectionGoal::None);
7499 }
7500 });
7501 });
7502 this.insert("", cx);
7503 });
7504 }
7505
7506 pub fn delete_to_previous_subword_start(
7507 &mut self,
7508 _: &DeleteToPreviousSubwordStart,
7509 cx: &mut ViewContext<Self>,
7510 ) {
7511 self.transact(cx, |this, cx| {
7512 this.select_autoclose_pair(cx);
7513 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7514 let line_mode = s.line_mode;
7515 s.move_with(|map, selection| {
7516 if selection.is_empty() && !line_mode {
7517 let cursor = movement::previous_subword_start(map, selection.head());
7518 selection.set_head(cursor, SelectionGoal::None);
7519 }
7520 });
7521 });
7522 this.insert("", cx);
7523 });
7524 }
7525
7526 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7527 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7528 s.move_cursors_with(|map, head, _| {
7529 (movement::next_word_end(map, head), SelectionGoal::None)
7530 });
7531 })
7532 }
7533
7534 pub fn move_to_next_subword_end(
7535 &mut self,
7536 _: &MoveToNextSubwordEnd,
7537 cx: &mut ViewContext<Self>,
7538 ) {
7539 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7540 s.move_cursors_with(|map, head, _| {
7541 (movement::next_subword_end(map, head), SelectionGoal::None)
7542 });
7543 })
7544 }
7545
7546 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7547 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7548 s.move_heads_with(|map, head, _| {
7549 (movement::next_word_end(map, head), SelectionGoal::None)
7550 });
7551 })
7552 }
7553
7554 pub fn select_to_next_subword_end(
7555 &mut self,
7556 _: &SelectToNextSubwordEnd,
7557 cx: &mut ViewContext<Self>,
7558 ) {
7559 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7560 s.move_heads_with(|map, head, _| {
7561 (movement::next_subword_end(map, head), SelectionGoal::None)
7562 });
7563 })
7564 }
7565
7566 pub fn delete_to_next_word_end(
7567 &mut self,
7568 action: &DeleteToNextWordEnd,
7569 cx: &mut ViewContext<Self>,
7570 ) {
7571 self.transact(cx, |this, cx| {
7572 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7573 let line_mode = s.line_mode;
7574 s.move_with(|map, selection| {
7575 if selection.is_empty() && !line_mode {
7576 let cursor = if action.ignore_newlines {
7577 movement::next_word_end(map, selection.head())
7578 } else {
7579 movement::next_word_end_or_newline(map, selection.head())
7580 };
7581 selection.set_head(cursor, SelectionGoal::None);
7582 }
7583 });
7584 });
7585 this.insert("", cx);
7586 });
7587 }
7588
7589 pub fn delete_to_next_subword_end(
7590 &mut self,
7591 _: &DeleteToNextSubwordEnd,
7592 cx: &mut ViewContext<Self>,
7593 ) {
7594 self.transact(cx, |this, cx| {
7595 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7596 s.move_with(|map, selection| {
7597 if selection.is_empty() {
7598 let cursor = movement::next_subword_end(map, selection.head());
7599 selection.set_head(cursor, SelectionGoal::None);
7600 }
7601 });
7602 });
7603 this.insert("", cx);
7604 });
7605 }
7606
7607 pub fn move_to_beginning_of_line(
7608 &mut self,
7609 action: &MoveToBeginningOfLine,
7610 cx: &mut ViewContext<Self>,
7611 ) {
7612 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7613 s.move_cursors_with(|map, head, _| {
7614 (
7615 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7616 SelectionGoal::None,
7617 )
7618 });
7619 })
7620 }
7621
7622 pub fn select_to_beginning_of_line(
7623 &mut self,
7624 action: &SelectToBeginningOfLine,
7625 cx: &mut ViewContext<Self>,
7626 ) {
7627 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7628 s.move_heads_with(|map, head, _| {
7629 (
7630 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7631 SelectionGoal::None,
7632 )
7633 });
7634 });
7635 }
7636
7637 pub fn delete_to_beginning_of_line(
7638 &mut self,
7639 _: &DeleteToBeginningOfLine,
7640 cx: &mut ViewContext<Self>,
7641 ) {
7642 self.transact(cx, |this, cx| {
7643 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7644 s.move_with(|_, selection| {
7645 selection.reversed = true;
7646 });
7647 });
7648
7649 this.select_to_beginning_of_line(
7650 &SelectToBeginningOfLine {
7651 stop_at_soft_wraps: false,
7652 },
7653 cx,
7654 );
7655 this.backspace(&Backspace, cx);
7656 });
7657 }
7658
7659 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7660 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7661 s.move_cursors_with(|map, head, _| {
7662 (
7663 movement::line_end(map, head, action.stop_at_soft_wraps),
7664 SelectionGoal::None,
7665 )
7666 });
7667 })
7668 }
7669
7670 pub fn select_to_end_of_line(
7671 &mut self,
7672 action: &SelectToEndOfLine,
7673 cx: &mut ViewContext<Self>,
7674 ) {
7675 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7676 s.move_heads_with(|map, head, _| {
7677 (
7678 movement::line_end(map, head, action.stop_at_soft_wraps),
7679 SelectionGoal::None,
7680 )
7681 });
7682 })
7683 }
7684
7685 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7686 self.transact(cx, |this, cx| {
7687 this.select_to_end_of_line(
7688 &SelectToEndOfLine {
7689 stop_at_soft_wraps: false,
7690 },
7691 cx,
7692 );
7693 this.delete(&Delete, cx);
7694 });
7695 }
7696
7697 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7698 self.transact(cx, |this, cx| {
7699 this.select_to_end_of_line(
7700 &SelectToEndOfLine {
7701 stop_at_soft_wraps: false,
7702 },
7703 cx,
7704 );
7705 this.cut(&Cut, cx);
7706 });
7707 }
7708
7709 pub fn move_to_start_of_paragraph(
7710 &mut self,
7711 _: &MoveToStartOfParagraph,
7712 cx: &mut ViewContext<Self>,
7713 ) {
7714 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7715 cx.propagate();
7716 return;
7717 }
7718
7719 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7720 s.move_with(|map, selection| {
7721 selection.collapse_to(
7722 movement::start_of_paragraph(map, selection.head(), 1),
7723 SelectionGoal::None,
7724 )
7725 });
7726 })
7727 }
7728
7729 pub fn move_to_end_of_paragraph(
7730 &mut self,
7731 _: &MoveToEndOfParagraph,
7732 cx: &mut ViewContext<Self>,
7733 ) {
7734 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7735 cx.propagate();
7736 return;
7737 }
7738
7739 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7740 s.move_with(|map, selection| {
7741 selection.collapse_to(
7742 movement::end_of_paragraph(map, selection.head(), 1),
7743 SelectionGoal::None,
7744 )
7745 });
7746 })
7747 }
7748
7749 pub fn select_to_start_of_paragraph(
7750 &mut self,
7751 _: &SelectToStartOfParagraph,
7752 cx: &mut ViewContext<Self>,
7753 ) {
7754 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7755 cx.propagate();
7756 return;
7757 }
7758
7759 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7760 s.move_heads_with(|map, head, _| {
7761 (
7762 movement::start_of_paragraph(map, head, 1),
7763 SelectionGoal::None,
7764 )
7765 });
7766 })
7767 }
7768
7769 pub fn select_to_end_of_paragraph(
7770 &mut self,
7771 _: &SelectToEndOfParagraph,
7772 cx: &mut ViewContext<Self>,
7773 ) {
7774 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7775 cx.propagate();
7776 return;
7777 }
7778
7779 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7780 s.move_heads_with(|map, head, _| {
7781 (
7782 movement::end_of_paragraph(map, head, 1),
7783 SelectionGoal::None,
7784 )
7785 });
7786 })
7787 }
7788
7789 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7790 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7791 cx.propagate();
7792 return;
7793 }
7794
7795 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7796 s.select_ranges(vec![0..0]);
7797 });
7798 }
7799
7800 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7801 let mut selection = self.selections.last::<Point>(cx);
7802 selection.set_head(Point::zero(), SelectionGoal::None);
7803
7804 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7805 s.select(vec![selection]);
7806 });
7807 }
7808
7809 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7810 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7811 cx.propagate();
7812 return;
7813 }
7814
7815 let cursor = self.buffer.read(cx).read(cx).len();
7816 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7817 s.select_ranges(vec![cursor..cursor])
7818 });
7819 }
7820
7821 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7822 self.nav_history = nav_history;
7823 }
7824
7825 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7826 self.nav_history.as_ref()
7827 }
7828
7829 fn push_to_nav_history(
7830 &mut self,
7831 cursor_anchor: Anchor,
7832 new_position: Option<Point>,
7833 cx: &mut ViewContext<Self>,
7834 ) {
7835 if let Some(nav_history) = self.nav_history.as_mut() {
7836 let buffer = self.buffer.read(cx).read(cx);
7837 let cursor_position = cursor_anchor.to_point(&buffer);
7838 let scroll_state = self.scroll_manager.anchor();
7839 let scroll_top_row = scroll_state.top_row(&buffer);
7840 drop(buffer);
7841
7842 if let Some(new_position) = new_position {
7843 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7844 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7845 return;
7846 }
7847 }
7848
7849 nav_history.push(
7850 Some(NavigationData {
7851 cursor_anchor,
7852 cursor_position,
7853 scroll_anchor: scroll_state,
7854 scroll_top_row,
7855 }),
7856 cx,
7857 );
7858 }
7859 }
7860
7861 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7862 let buffer = self.buffer.read(cx).snapshot(cx);
7863 let mut selection = self.selections.first::<usize>(cx);
7864 selection.set_head(buffer.len(), SelectionGoal::None);
7865 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7866 s.select(vec![selection]);
7867 });
7868 }
7869
7870 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7871 let end = self.buffer.read(cx).read(cx).len();
7872 self.change_selections(None, cx, |s| {
7873 s.select_ranges(vec![0..end]);
7874 });
7875 }
7876
7877 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7878 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7879 let mut selections = self.selections.all::<Point>(cx);
7880 let max_point = display_map.buffer_snapshot.max_point();
7881 for selection in &mut selections {
7882 let rows = selection.spanned_rows(true, &display_map);
7883 selection.start = Point::new(rows.start.0, 0);
7884 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7885 selection.reversed = false;
7886 }
7887 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7888 s.select(selections);
7889 });
7890 }
7891
7892 pub fn split_selection_into_lines(
7893 &mut self,
7894 _: &SplitSelectionIntoLines,
7895 cx: &mut ViewContext<Self>,
7896 ) {
7897 let mut to_unfold = Vec::new();
7898 let mut new_selection_ranges = Vec::new();
7899 {
7900 let selections = self.selections.all::<Point>(cx);
7901 let buffer = self.buffer.read(cx).read(cx);
7902 for selection in selections {
7903 for row in selection.start.row..selection.end.row {
7904 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7905 new_selection_ranges.push(cursor..cursor);
7906 }
7907 new_selection_ranges.push(selection.end..selection.end);
7908 to_unfold.push(selection.start..selection.end);
7909 }
7910 }
7911 self.unfold_ranges(&to_unfold, true, true, cx);
7912 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7913 s.select_ranges(new_selection_ranges);
7914 });
7915 }
7916
7917 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7918 self.add_selection(true, cx);
7919 }
7920
7921 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7922 self.add_selection(false, cx);
7923 }
7924
7925 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7926 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7927 let mut selections = self.selections.all::<Point>(cx);
7928 let text_layout_details = self.text_layout_details(cx);
7929 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7930 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7931 let range = oldest_selection.display_range(&display_map).sorted();
7932
7933 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7934 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7935 let positions = start_x.min(end_x)..start_x.max(end_x);
7936
7937 selections.clear();
7938 let mut stack = Vec::new();
7939 for row in range.start.row().0..=range.end.row().0 {
7940 if let Some(selection) = self.selections.build_columnar_selection(
7941 &display_map,
7942 DisplayRow(row),
7943 &positions,
7944 oldest_selection.reversed,
7945 &text_layout_details,
7946 ) {
7947 stack.push(selection.id);
7948 selections.push(selection);
7949 }
7950 }
7951
7952 if above {
7953 stack.reverse();
7954 }
7955
7956 AddSelectionsState { above, stack }
7957 });
7958
7959 let last_added_selection = *state.stack.last().unwrap();
7960 let mut new_selections = Vec::new();
7961 if above == state.above {
7962 let end_row = if above {
7963 DisplayRow(0)
7964 } else {
7965 display_map.max_point().row()
7966 };
7967
7968 'outer: for selection in selections {
7969 if selection.id == last_added_selection {
7970 let range = selection.display_range(&display_map).sorted();
7971 debug_assert_eq!(range.start.row(), range.end.row());
7972 let mut row = range.start.row();
7973 let positions =
7974 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7975 px(start)..px(end)
7976 } else {
7977 let start_x =
7978 display_map.x_for_display_point(range.start, &text_layout_details);
7979 let end_x =
7980 display_map.x_for_display_point(range.end, &text_layout_details);
7981 start_x.min(end_x)..start_x.max(end_x)
7982 };
7983
7984 while row != end_row {
7985 if above {
7986 row.0 -= 1;
7987 } else {
7988 row.0 += 1;
7989 }
7990
7991 if let Some(new_selection) = self.selections.build_columnar_selection(
7992 &display_map,
7993 row,
7994 &positions,
7995 selection.reversed,
7996 &text_layout_details,
7997 ) {
7998 state.stack.push(new_selection.id);
7999 if above {
8000 new_selections.push(new_selection);
8001 new_selections.push(selection);
8002 } else {
8003 new_selections.push(selection);
8004 new_selections.push(new_selection);
8005 }
8006
8007 continue 'outer;
8008 }
8009 }
8010 }
8011
8012 new_selections.push(selection);
8013 }
8014 } else {
8015 new_selections = selections;
8016 new_selections.retain(|s| s.id != last_added_selection);
8017 state.stack.pop();
8018 }
8019
8020 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8021 s.select(new_selections);
8022 });
8023 if state.stack.len() > 1 {
8024 self.add_selections_state = Some(state);
8025 }
8026 }
8027
8028 pub fn select_next_match_internal(
8029 &mut self,
8030 display_map: &DisplaySnapshot,
8031 replace_newest: bool,
8032 autoscroll: Option<Autoscroll>,
8033 cx: &mut ViewContext<Self>,
8034 ) -> Result<()> {
8035 fn select_next_match_ranges(
8036 this: &mut Editor,
8037 range: Range<usize>,
8038 replace_newest: bool,
8039 auto_scroll: Option<Autoscroll>,
8040 cx: &mut ViewContext<Editor>,
8041 ) {
8042 this.unfold_ranges(&[range.clone()], false, true, cx);
8043 this.change_selections(auto_scroll, cx, |s| {
8044 if replace_newest {
8045 s.delete(s.newest_anchor().id);
8046 }
8047 s.insert_range(range.clone());
8048 });
8049 }
8050
8051 let buffer = &display_map.buffer_snapshot;
8052 let mut selections = self.selections.all::<usize>(cx);
8053 if let Some(mut select_next_state) = self.select_next_state.take() {
8054 let query = &select_next_state.query;
8055 if !select_next_state.done {
8056 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8057 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8058 let mut next_selected_range = None;
8059
8060 let bytes_after_last_selection =
8061 buffer.bytes_in_range(last_selection.end..buffer.len());
8062 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8063 let query_matches = query
8064 .stream_find_iter(bytes_after_last_selection)
8065 .map(|result| (last_selection.end, result))
8066 .chain(
8067 query
8068 .stream_find_iter(bytes_before_first_selection)
8069 .map(|result| (0, result)),
8070 );
8071
8072 for (start_offset, query_match) in query_matches {
8073 let query_match = query_match.unwrap(); // can only fail due to I/O
8074 let offset_range =
8075 start_offset + query_match.start()..start_offset + query_match.end();
8076 let display_range = offset_range.start.to_display_point(display_map)
8077 ..offset_range.end.to_display_point(display_map);
8078
8079 if !select_next_state.wordwise
8080 || (!movement::is_inside_word(display_map, display_range.start)
8081 && !movement::is_inside_word(display_map, display_range.end))
8082 {
8083 // TODO: This is n^2, because we might check all the selections
8084 if !selections
8085 .iter()
8086 .any(|selection| selection.range().overlaps(&offset_range))
8087 {
8088 next_selected_range = Some(offset_range);
8089 break;
8090 }
8091 }
8092 }
8093
8094 if let Some(next_selected_range) = next_selected_range {
8095 select_next_match_ranges(
8096 self,
8097 next_selected_range,
8098 replace_newest,
8099 autoscroll,
8100 cx,
8101 );
8102 } else {
8103 select_next_state.done = true;
8104 }
8105 }
8106
8107 self.select_next_state = Some(select_next_state);
8108 } else {
8109 let mut only_carets = true;
8110 let mut same_text_selected = true;
8111 let mut selected_text = None;
8112
8113 let mut selections_iter = selections.iter().peekable();
8114 while let Some(selection) = selections_iter.next() {
8115 if selection.start != selection.end {
8116 only_carets = false;
8117 }
8118
8119 if same_text_selected {
8120 if selected_text.is_none() {
8121 selected_text =
8122 Some(buffer.text_for_range(selection.range()).collect::<String>());
8123 }
8124
8125 if let Some(next_selection) = selections_iter.peek() {
8126 if next_selection.range().len() == selection.range().len() {
8127 let next_selected_text = buffer
8128 .text_for_range(next_selection.range())
8129 .collect::<String>();
8130 if Some(next_selected_text) != selected_text {
8131 same_text_selected = false;
8132 selected_text = None;
8133 }
8134 } else {
8135 same_text_selected = false;
8136 selected_text = None;
8137 }
8138 }
8139 }
8140 }
8141
8142 if only_carets {
8143 for selection in &mut selections {
8144 let word_range = movement::surrounding_word(
8145 display_map,
8146 selection.start.to_display_point(display_map),
8147 );
8148 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8149 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8150 selection.goal = SelectionGoal::None;
8151 selection.reversed = false;
8152 select_next_match_ranges(
8153 self,
8154 selection.start..selection.end,
8155 replace_newest,
8156 autoscroll,
8157 cx,
8158 );
8159 }
8160
8161 if selections.len() == 1 {
8162 let selection = selections
8163 .last()
8164 .expect("ensured that there's only one selection");
8165 let query = buffer
8166 .text_for_range(selection.start..selection.end)
8167 .collect::<String>();
8168 let is_empty = query.is_empty();
8169 let select_state = SelectNextState {
8170 query: AhoCorasick::new(&[query])?,
8171 wordwise: true,
8172 done: is_empty,
8173 };
8174 self.select_next_state = Some(select_state);
8175 } else {
8176 self.select_next_state = None;
8177 }
8178 } else if let Some(selected_text) = selected_text {
8179 self.select_next_state = Some(SelectNextState {
8180 query: AhoCorasick::new(&[selected_text])?,
8181 wordwise: false,
8182 done: false,
8183 });
8184 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8185 }
8186 }
8187 Ok(())
8188 }
8189
8190 pub fn select_all_matches(
8191 &mut self,
8192 _action: &SelectAllMatches,
8193 cx: &mut ViewContext<Self>,
8194 ) -> Result<()> {
8195 self.push_to_selection_history();
8196 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8197
8198 self.select_next_match_internal(&display_map, false, None, cx)?;
8199 let Some(select_next_state) = self.select_next_state.as_mut() else {
8200 return Ok(());
8201 };
8202 if select_next_state.done {
8203 return Ok(());
8204 }
8205
8206 let mut new_selections = self.selections.all::<usize>(cx);
8207
8208 let buffer = &display_map.buffer_snapshot;
8209 let query_matches = select_next_state
8210 .query
8211 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8212
8213 for query_match in query_matches {
8214 let query_match = query_match.unwrap(); // can only fail due to I/O
8215 let offset_range = query_match.start()..query_match.end();
8216 let display_range = offset_range.start.to_display_point(&display_map)
8217 ..offset_range.end.to_display_point(&display_map);
8218
8219 if !select_next_state.wordwise
8220 || (!movement::is_inside_word(&display_map, display_range.start)
8221 && !movement::is_inside_word(&display_map, display_range.end))
8222 {
8223 self.selections.change_with(cx, |selections| {
8224 new_selections.push(Selection {
8225 id: selections.new_selection_id(),
8226 start: offset_range.start,
8227 end: offset_range.end,
8228 reversed: false,
8229 goal: SelectionGoal::None,
8230 });
8231 });
8232 }
8233 }
8234
8235 new_selections.sort_by_key(|selection| selection.start);
8236 let mut ix = 0;
8237 while ix + 1 < new_selections.len() {
8238 let current_selection = &new_selections[ix];
8239 let next_selection = &new_selections[ix + 1];
8240 if current_selection.range().overlaps(&next_selection.range()) {
8241 if current_selection.id < next_selection.id {
8242 new_selections.remove(ix + 1);
8243 } else {
8244 new_selections.remove(ix);
8245 }
8246 } else {
8247 ix += 1;
8248 }
8249 }
8250
8251 select_next_state.done = true;
8252 self.unfold_ranges(
8253 &new_selections
8254 .iter()
8255 .map(|selection| selection.range())
8256 .collect::<Vec<_>>(),
8257 false,
8258 false,
8259 cx,
8260 );
8261 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8262 selections.select(new_selections)
8263 });
8264
8265 Ok(())
8266 }
8267
8268 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8269 self.push_to_selection_history();
8270 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8271 self.select_next_match_internal(
8272 &display_map,
8273 action.replace_newest,
8274 Some(Autoscroll::newest()),
8275 cx,
8276 )?;
8277 Ok(())
8278 }
8279
8280 pub fn select_previous(
8281 &mut self,
8282 action: &SelectPrevious,
8283 cx: &mut ViewContext<Self>,
8284 ) -> Result<()> {
8285 self.push_to_selection_history();
8286 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8287 let buffer = &display_map.buffer_snapshot;
8288 let mut selections = self.selections.all::<usize>(cx);
8289 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8290 let query = &select_prev_state.query;
8291 if !select_prev_state.done {
8292 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8293 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8294 let mut next_selected_range = None;
8295 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8296 let bytes_before_last_selection =
8297 buffer.reversed_bytes_in_range(0..last_selection.start);
8298 let bytes_after_first_selection =
8299 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8300 let query_matches = query
8301 .stream_find_iter(bytes_before_last_selection)
8302 .map(|result| (last_selection.start, result))
8303 .chain(
8304 query
8305 .stream_find_iter(bytes_after_first_selection)
8306 .map(|result| (buffer.len(), result)),
8307 );
8308 for (end_offset, query_match) in query_matches {
8309 let query_match = query_match.unwrap(); // can only fail due to I/O
8310 let offset_range =
8311 end_offset - query_match.end()..end_offset - query_match.start();
8312 let display_range = offset_range.start.to_display_point(&display_map)
8313 ..offset_range.end.to_display_point(&display_map);
8314
8315 if !select_prev_state.wordwise
8316 || (!movement::is_inside_word(&display_map, display_range.start)
8317 && !movement::is_inside_word(&display_map, display_range.end))
8318 {
8319 next_selected_range = Some(offset_range);
8320 break;
8321 }
8322 }
8323
8324 if let Some(next_selected_range) = next_selected_range {
8325 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8326 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8327 if action.replace_newest {
8328 s.delete(s.newest_anchor().id);
8329 }
8330 s.insert_range(next_selected_range);
8331 });
8332 } else {
8333 select_prev_state.done = true;
8334 }
8335 }
8336
8337 self.select_prev_state = Some(select_prev_state);
8338 } else {
8339 let mut only_carets = true;
8340 let mut same_text_selected = true;
8341 let mut selected_text = None;
8342
8343 let mut selections_iter = selections.iter().peekable();
8344 while let Some(selection) = selections_iter.next() {
8345 if selection.start != selection.end {
8346 only_carets = false;
8347 }
8348
8349 if same_text_selected {
8350 if selected_text.is_none() {
8351 selected_text =
8352 Some(buffer.text_for_range(selection.range()).collect::<String>());
8353 }
8354
8355 if let Some(next_selection) = selections_iter.peek() {
8356 if next_selection.range().len() == selection.range().len() {
8357 let next_selected_text = buffer
8358 .text_for_range(next_selection.range())
8359 .collect::<String>();
8360 if Some(next_selected_text) != selected_text {
8361 same_text_selected = false;
8362 selected_text = None;
8363 }
8364 } else {
8365 same_text_selected = false;
8366 selected_text = None;
8367 }
8368 }
8369 }
8370 }
8371
8372 if only_carets {
8373 for selection in &mut selections {
8374 let word_range = movement::surrounding_word(
8375 &display_map,
8376 selection.start.to_display_point(&display_map),
8377 );
8378 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8379 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8380 selection.goal = SelectionGoal::None;
8381 selection.reversed = false;
8382 }
8383 if selections.len() == 1 {
8384 let selection = selections
8385 .last()
8386 .expect("ensured that there's only one selection");
8387 let query = buffer
8388 .text_for_range(selection.start..selection.end)
8389 .collect::<String>();
8390 let is_empty = query.is_empty();
8391 let select_state = SelectNextState {
8392 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8393 wordwise: true,
8394 done: is_empty,
8395 };
8396 self.select_prev_state = Some(select_state);
8397 } else {
8398 self.select_prev_state = None;
8399 }
8400
8401 self.unfold_ranges(
8402 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8403 false,
8404 true,
8405 cx,
8406 );
8407 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8408 s.select(selections);
8409 });
8410 } else if let Some(selected_text) = selected_text {
8411 self.select_prev_state = Some(SelectNextState {
8412 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8413 wordwise: false,
8414 done: false,
8415 });
8416 self.select_previous(action, cx)?;
8417 }
8418 }
8419 Ok(())
8420 }
8421
8422 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8423 if self.read_only(cx) {
8424 return;
8425 }
8426 let text_layout_details = &self.text_layout_details(cx);
8427 self.transact(cx, |this, cx| {
8428 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8429 let mut edits = Vec::new();
8430 let mut selection_edit_ranges = Vec::new();
8431 let mut last_toggled_row = None;
8432 let snapshot = this.buffer.read(cx).read(cx);
8433 let empty_str: Arc<str> = Arc::default();
8434 let mut suffixes_inserted = Vec::new();
8435 let ignore_indent = action.ignore_indent;
8436
8437 fn comment_prefix_range(
8438 snapshot: &MultiBufferSnapshot,
8439 row: MultiBufferRow,
8440 comment_prefix: &str,
8441 comment_prefix_whitespace: &str,
8442 ignore_indent: bool,
8443 ) -> Range<Point> {
8444 let indent_size = if ignore_indent {
8445 0
8446 } else {
8447 snapshot.indent_size_for_line(row).len
8448 };
8449
8450 let start = Point::new(row.0, indent_size);
8451
8452 let mut line_bytes = snapshot
8453 .bytes_in_range(start..snapshot.max_point())
8454 .flatten()
8455 .copied();
8456
8457 // If this line currently begins with the line comment prefix, then record
8458 // the range containing the prefix.
8459 if line_bytes
8460 .by_ref()
8461 .take(comment_prefix.len())
8462 .eq(comment_prefix.bytes())
8463 {
8464 // Include any whitespace that matches the comment prefix.
8465 let matching_whitespace_len = line_bytes
8466 .zip(comment_prefix_whitespace.bytes())
8467 .take_while(|(a, b)| a == b)
8468 .count() as u32;
8469 let end = Point::new(
8470 start.row,
8471 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8472 );
8473 start..end
8474 } else {
8475 start..start
8476 }
8477 }
8478
8479 fn comment_suffix_range(
8480 snapshot: &MultiBufferSnapshot,
8481 row: MultiBufferRow,
8482 comment_suffix: &str,
8483 comment_suffix_has_leading_space: bool,
8484 ) -> Range<Point> {
8485 let end = Point::new(row.0, snapshot.line_len(row));
8486 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8487
8488 let mut line_end_bytes = snapshot
8489 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8490 .flatten()
8491 .copied();
8492
8493 let leading_space_len = if suffix_start_column > 0
8494 && line_end_bytes.next() == Some(b' ')
8495 && comment_suffix_has_leading_space
8496 {
8497 1
8498 } else {
8499 0
8500 };
8501
8502 // If this line currently begins with the line comment prefix, then record
8503 // the range containing the prefix.
8504 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8505 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8506 start..end
8507 } else {
8508 end..end
8509 }
8510 }
8511
8512 // TODO: Handle selections that cross excerpts
8513 for selection in &mut selections {
8514 let start_column = snapshot
8515 .indent_size_for_line(MultiBufferRow(selection.start.row))
8516 .len;
8517 let language = if let Some(language) =
8518 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8519 {
8520 language
8521 } else {
8522 continue;
8523 };
8524
8525 selection_edit_ranges.clear();
8526
8527 // If multiple selections contain a given row, avoid processing that
8528 // row more than once.
8529 let mut start_row = MultiBufferRow(selection.start.row);
8530 if last_toggled_row == Some(start_row) {
8531 start_row = start_row.next_row();
8532 }
8533 let end_row =
8534 if selection.end.row > selection.start.row && selection.end.column == 0 {
8535 MultiBufferRow(selection.end.row - 1)
8536 } else {
8537 MultiBufferRow(selection.end.row)
8538 };
8539 last_toggled_row = Some(end_row);
8540
8541 if start_row > end_row {
8542 continue;
8543 }
8544
8545 // If the language has line comments, toggle those.
8546 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8547
8548 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8549 if ignore_indent {
8550 full_comment_prefixes = full_comment_prefixes
8551 .into_iter()
8552 .map(|s| Arc::from(s.trim_end()))
8553 .collect();
8554 }
8555
8556 if !full_comment_prefixes.is_empty() {
8557 let first_prefix = full_comment_prefixes
8558 .first()
8559 .expect("prefixes is non-empty");
8560 let prefix_trimmed_lengths = full_comment_prefixes
8561 .iter()
8562 .map(|p| p.trim_end_matches(' ').len())
8563 .collect::<SmallVec<[usize; 4]>>();
8564
8565 let mut all_selection_lines_are_comments = true;
8566
8567 for row in start_row.0..=end_row.0 {
8568 let row = MultiBufferRow(row);
8569 if start_row < end_row && snapshot.is_line_blank(row) {
8570 continue;
8571 }
8572
8573 let prefix_range = full_comment_prefixes
8574 .iter()
8575 .zip(prefix_trimmed_lengths.iter().copied())
8576 .map(|(prefix, trimmed_prefix_len)| {
8577 comment_prefix_range(
8578 snapshot.deref(),
8579 row,
8580 &prefix[..trimmed_prefix_len],
8581 &prefix[trimmed_prefix_len..],
8582 ignore_indent,
8583 )
8584 })
8585 .max_by_key(|range| range.end.column - range.start.column)
8586 .expect("prefixes is non-empty");
8587
8588 if prefix_range.is_empty() {
8589 all_selection_lines_are_comments = false;
8590 }
8591
8592 selection_edit_ranges.push(prefix_range);
8593 }
8594
8595 if all_selection_lines_are_comments {
8596 edits.extend(
8597 selection_edit_ranges
8598 .iter()
8599 .cloned()
8600 .map(|range| (range, empty_str.clone())),
8601 );
8602 } else {
8603 let min_column = selection_edit_ranges
8604 .iter()
8605 .map(|range| range.start.column)
8606 .min()
8607 .unwrap_or(0);
8608 edits.extend(selection_edit_ranges.iter().map(|range| {
8609 let position = Point::new(range.start.row, min_column);
8610 (position..position, first_prefix.clone())
8611 }));
8612 }
8613 } else if let Some((full_comment_prefix, comment_suffix)) =
8614 language.block_comment_delimiters()
8615 {
8616 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8617 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8618 let prefix_range = comment_prefix_range(
8619 snapshot.deref(),
8620 start_row,
8621 comment_prefix,
8622 comment_prefix_whitespace,
8623 ignore_indent,
8624 );
8625 let suffix_range = comment_suffix_range(
8626 snapshot.deref(),
8627 end_row,
8628 comment_suffix.trim_start_matches(' '),
8629 comment_suffix.starts_with(' '),
8630 );
8631
8632 if prefix_range.is_empty() || suffix_range.is_empty() {
8633 edits.push((
8634 prefix_range.start..prefix_range.start,
8635 full_comment_prefix.clone(),
8636 ));
8637 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8638 suffixes_inserted.push((end_row, comment_suffix.len()));
8639 } else {
8640 edits.push((prefix_range, empty_str.clone()));
8641 edits.push((suffix_range, empty_str.clone()));
8642 }
8643 } else {
8644 continue;
8645 }
8646 }
8647
8648 drop(snapshot);
8649 this.buffer.update(cx, |buffer, cx| {
8650 buffer.edit(edits, None, cx);
8651 });
8652
8653 // Adjust selections so that they end before any comment suffixes that
8654 // were inserted.
8655 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8656 let mut selections = this.selections.all::<Point>(cx);
8657 let snapshot = this.buffer.read(cx).read(cx);
8658 for selection in &mut selections {
8659 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8660 match row.cmp(&MultiBufferRow(selection.end.row)) {
8661 Ordering::Less => {
8662 suffixes_inserted.next();
8663 continue;
8664 }
8665 Ordering::Greater => break,
8666 Ordering::Equal => {
8667 if selection.end.column == snapshot.line_len(row) {
8668 if selection.is_empty() {
8669 selection.start.column -= suffix_len as u32;
8670 }
8671 selection.end.column -= suffix_len as u32;
8672 }
8673 break;
8674 }
8675 }
8676 }
8677 }
8678
8679 drop(snapshot);
8680 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8681
8682 let selections = this.selections.all::<Point>(cx);
8683 let selections_on_single_row = selections.windows(2).all(|selections| {
8684 selections[0].start.row == selections[1].start.row
8685 && selections[0].end.row == selections[1].end.row
8686 && selections[0].start.row == selections[0].end.row
8687 });
8688 let selections_selecting = selections
8689 .iter()
8690 .any(|selection| selection.start != selection.end);
8691 let advance_downwards = action.advance_downwards
8692 && selections_on_single_row
8693 && !selections_selecting
8694 && !matches!(this.mode, EditorMode::SingleLine { .. });
8695
8696 if advance_downwards {
8697 let snapshot = this.buffer.read(cx).snapshot(cx);
8698
8699 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8700 s.move_cursors_with(|display_snapshot, display_point, _| {
8701 let mut point = display_point.to_point(display_snapshot);
8702 point.row += 1;
8703 point = snapshot.clip_point(point, Bias::Left);
8704 let display_point = point.to_display_point(display_snapshot);
8705 let goal = SelectionGoal::HorizontalPosition(
8706 display_snapshot
8707 .x_for_display_point(display_point, text_layout_details)
8708 .into(),
8709 );
8710 (display_point, goal)
8711 })
8712 });
8713 }
8714 });
8715 }
8716
8717 pub fn select_enclosing_symbol(
8718 &mut self,
8719 _: &SelectEnclosingSymbol,
8720 cx: &mut ViewContext<Self>,
8721 ) {
8722 let buffer = self.buffer.read(cx).snapshot(cx);
8723 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8724
8725 fn update_selection(
8726 selection: &Selection<usize>,
8727 buffer_snap: &MultiBufferSnapshot,
8728 ) -> Option<Selection<usize>> {
8729 let cursor = selection.head();
8730 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8731 for symbol in symbols.iter().rev() {
8732 let start = symbol.range.start.to_offset(buffer_snap);
8733 let end = symbol.range.end.to_offset(buffer_snap);
8734 let new_range = start..end;
8735 if start < selection.start || end > selection.end {
8736 return Some(Selection {
8737 id: selection.id,
8738 start: new_range.start,
8739 end: new_range.end,
8740 goal: SelectionGoal::None,
8741 reversed: selection.reversed,
8742 });
8743 }
8744 }
8745 None
8746 }
8747
8748 let mut selected_larger_symbol = false;
8749 let new_selections = old_selections
8750 .iter()
8751 .map(|selection| match update_selection(selection, &buffer) {
8752 Some(new_selection) => {
8753 if new_selection.range() != selection.range() {
8754 selected_larger_symbol = true;
8755 }
8756 new_selection
8757 }
8758 None => selection.clone(),
8759 })
8760 .collect::<Vec<_>>();
8761
8762 if selected_larger_symbol {
8763 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8764 s.select(new_selections);
8765 });
8766 }
8767 }
8768
8769 pub fn select_larger_syntax_node(
8770 &mut self,
8771 _: &SelectLargerSyntaxNode,
8772 cx: &mut ViewContext<Self>,
8773 ) {
8774 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8775 let buffer = self.buffer.read(cx).snapshot(cx);
8776 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8777
8778 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8779 let mut selected_larger_node = false;
8780 let new_selections = old_selections
8781 .iter()
8782 .map(|selection| {
8783 let old_range = selection.start..selection.end;
8784 let mut new_range = old_range.clone();
8785 let mut new_node = None;
8786 while let Some((node, containing_range)) = buffer.syntax_ancestor(new_range.clone())
8787 {
8788 new_node = Some(node);
8789 new_range = containing_range;
8790 if !display_map.intersects_fold(new_range.start)
8791 && !display_map.intersects_fold(new_range.end)
8792 {
8793 break;
8794 }
8795 }
8796
8797 if let Some(node) = new_node {
8798 // Log the ancestor, to support using this action as a way to explore TreeSitter
8799 // nodes. Parent and grandparent are also logged because this operation will not
8800 // visit nodes that have the same range as their parent.
8801 log::info!("Node: {node:?}");
8802 let parent = node.parent();
8803 log::info!("Parent: {parent:?}");
8804 let grandparent = parent.and_then(|x| x.parent());
8805 log::info!("Grandparent: {grandparent:?}");
8806 }
8807
8808 selected_larger_node |= new_range != old_range;
8809 Selection {
8810 id: selection.id,
8811 start: new_range.start,
8812 end: new_range.end,
8813 goal: SelectionGoal::None,
8814 reversed: selection.reversed,
8815 }
8816 })
8817 .collect::<Vec<_>>();
8818
8819 if selected_larger_node {
8820 stack.push(old_selections);
8821 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8822 s.select(new_selections);
8823 });
8824 }
8825 self.select_larger_syntax_node_stack = stack;
8826 }
8827
8828 pub fn select_smaller_syntax_node(
8829 &mut self,
8830 _: &SelectSmallerSyntaxNode,
8831 cx: &mut ViewContext<Self>,
8832 ) {
8833 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8834 if let Some(selections) = stack.pop() {
8835 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8836 s.select(selections.to_vec());
8837 });
8838 }
8839 self.select_larger_syntax_node_stack = stack;
8840 }
8841
8842 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8843 if !EditorSettings::get_global(cx).gutter.runnables {
8844 self.clear_tasks();
8845 return Task::ready(());
8846 }
8847 let project = self.project.as_ref().map(Model::downgrade);
8848 cx.spawn(|this, mut cx| async move {
8849 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
8850 let Some(project) = project.and_then(|p| p.upgrade()) else {
8851 return;
8852 };
8853 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8854 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8855 }) else {
8856 return;
8857 };
8858
8859 let hide_runnables = project
8860 .update(&mut cx, |project, cx| {
8861 // Do not display any test indicators in non-dev server remote projects.
8862 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8863 })
8864 .unwrap_or(true);
8865 if hide_runnables {
8866 return;
8867 }
8868 let new_rows =
8869 cx.background_executor()
8870 .spawn({
8871 let snapshot = display_snapshot.clone();
8872 async move {
8873 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8874 }
8875 })
8876 .await;
8877 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8878
8879 this.update(&mut cx, |this, _| {
8880 this.clear_tasks();
8881 for (key, value) in rows {
8882 this.insert_tasks(key, value);
8883 }
8884 })
8885 .ok();
8886 })
8887 }
8888 fn fetch_runnable_ranges(
8889 snapshot: &DisplaySnapshot,
8890 range: Range<Anchor>,
8891 ) -> Vec<language::RunnableRange> {
8892 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8893 }
8894
8895 fn runnable_rows(
8896 project: Model<Project>,
8897 snapshot: DisplaySnapshot,
8898 runnable_ranges: Vec<RunnableRange>,
8899 mut cx: AsyncWindowContext,
8900 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8901 runnable_ranges
8902 .into_iter()
8903 .filter_map(|mut runnable| {
8904 let tasks = cx
8905 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8906 .ok()?;
8907 if tasks.is_empty() {
8908 return None;
8909 }
8910
8911 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8912
8913 let row = snapshot
8914 .buffer_snapshot
8915 .buffer_line_for_row(MultiBufferRow(point.row))?
8916 .1
8917 .start
8918 .row;
8919
8920 let context_range =
8921 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8922 Some((
8923 (runnable.buffer_id, row),
8924 RunnableTasks {
8925 templates: tasks,
8926 offset: MultiBufferOffset(runnable.run_range.start),
8927 context_range,
8928 column: point.column,
8929 extra_variables: runnable.extra_captures,
8930 },
8931 ))
8932 })
8933 .collect()
8934 }
8935
8936 fn templates_with_tags(
8937 project: &Model<Project>,
8938 runnable: &mut Runnable,
8939 cx: &WindowContext<'_>,
8940 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8941 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8942 let (worktree_id, file) = project
8943 .buffer_for_id(runnable.buffer, cx)
8944 .and_then(|buffer| buffer.read(cx).file())
8945 .map(|file| (file.worktree_id(cx), file.clone()))
8946 .unzip();
8947
8948 (
8949 project.task_store().read(cx).task_inventory().cloned(),
8950 worktree_id,
8951 file,
8952 )
8953 });
8954
8955 let tags = mem::take(&mut runnable.tags);
8956 let mut tags: Vec<_> = tags
8957 .into_iter()
8958 .flat_map(|tag| {
8959 let tag = tag.0.clone();
8960 inventory
8961 .as_ref()
8962 .into_iter()
8963 .flat_map(|inventory| {
8964 inventory.read(cx).list_tasks(
8965 file.clone(),
8966 Some(runnable.language.clone()),
8967 worktree_id,
8968 cx,
8969 )
8970 })
8971 .filter(move |(_, template)| {
8972 template.tags.iter().any(|source_tag| source_tag == &tag)
8973 })
8974 })
8975 .sorted_by_key(|(kind, _)| kind.to_owned())
8976 .collect();
8977 if let Some((leading_tag_source, _)) = tags.first() {
8978 // Strongest source wins; if we have worktree tag binding, prefer that to
8979 // global and language bindings;
8980 // if we have a global binding, prefer that to language binding.
8981 let first_mismatch = tags
8982 .iter()
8983 .position(|(tag_source, _)| tag_source != leading_tag_source);
8984 if let Some(index) = first_mismatch {
8985 tags.truncate(index);
8986 }
8987 }
8988
8989 tags
8990 }
8991
8992 pub fn move_to_enclosing_bracket(
8993 &mut self,
8994 _: &MoveToEnclosingBracket,
8995 cx: &mut ViewContext<Self>,
8996 ) {
8997 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8998 s.move_offsets_with(|snapshot, selection| {
8999 let Some(enclosing_bracket_ranges) =
9000 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9001 else {
9002 return;
9003 };
9004
9005 let mut best_length = usize::MAX;
9006 let mut best_inside = false;
9007 let mut best_in_bracket_range = false;
9008 let mut best_destination = None;
9009 for (open, close) in enclosing_bracket_ranges {
9010 let close = close.to_inclusive();
9011 let length = close.end() - open.start;
9012 let inside = selection.start >= open.end && selection.end <= *close.start();
9013 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9014 || close.contains(&selection.head());
9015
9016 // If best is next to a bracket and current isn't, skip
9017 if !in_bracket_range && best_in_bracket_range {
9018 continue;
9019 }
9020
9021 // Prefer smaller lengths unless best is inside and current isn't
9022 if length > best_length && (best_inside || !inside) {
9023 continue;
9024 }
9025
9026 best_length = length;
9027 best_inside = inside;
9028 best_in_bracket_range = in_bracket_range;
9029 best_destination = Some(
9030 if close.contains(&selection.start) && close.contains(&selection.end) {
9031 if inside {
9032 open.end
9033 } else {
9034 open.start
9035 }
9036 } else if inside {
9037 *close.start()
9038 } else {
9039 *close.end()
9040 },
9041 );
9042 }
9043
9044 if let Some(destination) = best_destination {
9045 selection.collapse_to(destination, SelectionGoal::None);
9046 }
9047 })
9048 });
9049 }
9050
9051 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9052 self.end_selection(cx);
9053 self.selection_history.mode = SelectionHistoryMode::Undoing;
9054 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9055 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9056 self.select_next_state = entry.select_next_state;
9057 self.select_prev_state = entry.select_prev_state;
9058 self.add_selections_state = entry.add_selections_state;
9059 self.request_autoscroll(Autoscroll::newest(), cx);
9060 }
9061 self.selection_history.mode = SelectionHistoryMode::Normal;
9062 }
9063
9064 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9065 self.end_selection(cx);
9066 self.selection_history.mode = SelectionHistoryMode::Redoing;
9067 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9068 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9069 self.select_next_state = entry.select_next_state;
9070 self.select_prev_state = entry.select_prev_state;
9071 self.add_selections_state = entry.add_selections_state;
9072 self.request_autoscroll(Autoscroll::newest(), cx);
9073 }
9074 self.selection_history.mode = SelectionHistoryMode::Normal;
9075 }
9076
9077 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9078 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9079 }
9080
9081 pub fn expand_excerpts_down(
9082 &mut self,
9083 action: &ExpandExcerptsDown,
9084 cx: &mut ViewContext<Self>,
9085 ) {
9086 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9087 }
9088
9089 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9090 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9091 }
9092
9093 pub fn expand_excerpts_for_direction(
9094 &mut self,
9095 lines: u32,
9096 direction: ExpandExcerptDirection,
9097 cx: &mut ViewContext<Self>,
9098 ) {
9099 let selections = self.selections.disjoint_anchors();
9100
9101 let lines = if lines == 0 {
9102 EditorSettings::get_global(cx).expand_excerpt_lines
9103 } else {
9104 lines
9105 };
9106
9107 self.buffer.update(cx, |buffer, cx| {
9108 buffer.expand_excerpts(
9109 selections
9110 .iter()
9111 .map(|selection| selection.head().excerpt_id)
9112 .dedup(),
9113 lines,
9114 direction,
9115 cx,
9116 )
9117 })
9118 }
9119
9120 pub fn expand_excerpt(
9121 &mut self,
9122 excerpt: ExcerptId,
9123 direction: ExpandExcerptDirection,
9124 cx: &mut ViewContext<Self>,
9125 ) {
9126 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9127 self.buffer.update(cx, |buffer, cx| {
9128 buffer.expand_excerpts([excerpt], lines, direction, cx)
9129 })
9130 }
9131
9132 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9133 self.go_to_diagnostic_impl(Direction::Next, cx)
9134 }
9135
9136 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9137 self.go_to_diagnostic_impl(Direction::Prev, cx)
9138 }
9139
9140 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9141 let buffer = self.buffer.read(cx).snapshot(cx);
9142 let selection = self.selections.newest::<usize>(cx);
9143
9144 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9145 if direction == Direction::Next {
9146 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9147 let (group_id, jump_to) = popover.activation_info();
9148 if self.activate_diagnostics(group_id, cx) {
9149 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9150 let mut new_selection = s.newest_anchor().clone();
9151 new_selection.collapse_to(jump_to, SelectionGoal::None);
9152 s.select_anchors(vec![new_selection.clone()]);
9153 });
9154 }
9155 return;
9156 }
9157 }
9158
9159 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9160 active_diagnostics
9161 .primary_range
9162 .to_offset(&buffer)
9163 .to_inclusive()
9164 });
9165 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9166 if active_primary_range.contains(&selection.head()) {
9167 *active_primary_range.start()
9168 } else {
9169 selection.head()
9170 }
9171 } else {
9172 selection.head()
9173 };
9174 let snapshot = self.snapshot(cx);
9175 loop {
9176 let diagnostics = if direction == Direction::Prev {
9177 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9178 } else {
9179 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9180 }
9181 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9182 let group = diagnostics
9183 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9184 // be sorted in a stable way
9185 // skip until we are at current active diagnostic, if it exists
9186 .skip_while(|entry| {
9187 (match direction {
9188 Direction::Prev => entry.range.start >= search_start,
9189 Direction::Next => entry.range.start <= search_start,
9190 }) && self
9191 .active_diagnostics
9192 .as_ref()
9193 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9194 })
9195 .find_map(|entry| {
9196 if entry.diagnostic.is_primary
9197 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9198 && !entry.range.is_empty()
9199 // if we match with the active diagnostic, skip it
9200 && Some(entry.diagnostic.group_id)
9201 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9202 {
9203 Some((entry.range, entry.diagnostic.group_id))
9204 } else {
9205 None
9206 }
9207 });
9208
9209 if let Some((primary_range, group_id)) = group {
9210 if self.activate_diagnostics(group_id, cx) {
9211 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9212 s.select(vec![Selection {
9213 id: selection.id,
9214 start: primary_range.start,
9215 end: primary_range.start,
9216 reversed: false,
9217 goal: SelectionGoal::None,
9218 }]);
9219 });
9220 }
9221 break;
9222 } else {
9223 // Cycle around to the start of the buffer, potentially moving back to the start of
9224 // the currently active diagnostic.
9225 active_primary_range.take();
9226 if direction == Direction::Prev {
9227 if search_start == buffer.len() {
9228 break;
9229 } else {
9230 search_start = buffer.len();
9231 }
9232 } else if search_start == 0 {
9233 break;
9234 } else {
9235 search_start = 0;
9236 }
9237 }
9238 }
9239 }
9240
9241 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9242 let snapshot = self.snapshot(cx);
9243 let selection = self.selections.newest::<Point>(cx);
9244 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9245 }
9246
9247 fn go_to_hunk_after_position(
9248 &mut self,
9249 snapshot: &EditorSnapshot,
9250 position: Point,
9251 cx: &mut ViewContext<'_, Editor>,
9252 ) -> Option<MultiBufferDiffHunk> {
9253 for (ix, position) in [position, Point::zero()].into_iter().enumerate() {
9254 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9255 snapshot,
9256 position,
9257 ix > 0,
9258 snapshot.diff_map.diff_hunks_in_range(
9259 position + Point::new(1, 0)..snapshot.buffer_snapshot.max_point(),
9260 &snapshot.buffer_snapshot,
9261 ),
9262 cx,
9263 ) {
9264 return Some(hunk);
9265 }
9266 }
9267 None
9268 }
9269
9270 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9271 let snapshot = self.snapshot(cx);
9272 let selection = self.selections.newest::<Point>(cx);
9273 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9274 }
9275
9276 fn go_to_hunk_before_position(
9277 &mut self,
9278 snapshot: &EditorSnapshot,
9279 position: Point,
9280 cx: &mut ViewContext<'_, Editor>,
9281 ) -> Option<MultiBufferDiffHunk> {
9282 for (ix, position) in [position, snapshot.buffer_snapshot.max_point()]
9283 .into_iter()
9284 .enumerate()
9285 {
9286 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9287 snapshot,
9288 position,
9289 ix > 0,
9290 snapshot
9291 .diff_map
9292 .diff_hunks_in_range_rev(Point::zero()..position, &snapshot.buffer_snapshot),
9293 cx,
9294 ) {
9295 return Some(hunk);
9296 }
9297 }
9298 None
9299 }
9300
9301 fn go_to_next_hunk_in_direction(
9302 &mut self,
9303 snapshot: &DisplaySnapshot,
9304 initial_point: Point,
9305 is_wrapped: bool,
9306 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9307 cx: &mut ViewContext<Editor>,
9308 ) -> Option<MultiBufferDiffHunk> {
9309 let display_point = initial_point.to_display_point(snapshot);
9310 let mut hunks = hunks
9311 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9312 .filter(|(display_hunk, _)| {
9313 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9314 })
9315 .dedup();
9316
9317 if let Some((display_hunk, hunk)) = hunks.next() {
9318 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9319 let row = display_hunk.start_display_row();
9320 let point = DisplayPoint::new(row, 0);
9321 s.select_display_ranges([point..point]);
9322 });
9323
9324 Some(hunk)
9325 } else {
9326 None
9327 }
9328 }
9329
9330 pub fn go_to_definition(
9331 &mut self,
9332 _: &GoToDefinition,
9333 cx: &mut ViewContext<Self>,
9334 ) -> Task<Result<Navigated>> {
9335 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9336 cx.spawn(|editor, mut cx| async move {
9337 if definition.await? == Navigated::Yes {
9338 return Ok(Navigated::Yes);
9339 }
9340 match editor.update(&mut cx, |editor, cx| {
9341 editor.find_all_references(&FindAllReferences, cx)
9342 })? {
9343 Some(references) => references.await,
9344 None => Ok(Navigated::No),
9345 }
9346 })
9347 }
9348
9349 pub fn go_to_declaration(
9350 &mut self,
9351 _: &GoToDeclaration,
9352 cx: &mut ViewContext<Self>,
9353 ) -> Task<Result<Navigated>> {
9354 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9355 }
9356
9357 pub fn go_to_declaration_split(
9358 &mut self,
9359 _: &GoToDeclaration,
9360 cx: &mut ViewContext<Self>,
9361 ) -> Task<Result<Navigated>> {
9362 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9363 }
9364
9365 pub fn go_to_implementation(
9366 &mut self,
9367 _: &GoToImplementation,
9368 cx: &mut ViewContext<Self>,
9369 ) -> Task<Result<Navigated>> {
9370 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9371 }
9372
9373 pub fn go_to_implementation_split(
9374 &mut self,
9375 _: &GoToImplementationSplit,
9376 cx: &mut ViewContext<Self>,
9377 ) -> Task<Result<Navigated>> {
9378 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9379 }
9380
9381 pub fn go_to_type_definition(
9382 &mut self,
9383 _: &GoToTypeDefinition,
9384 cx: &mut ViewContext<Self>,
9385 ) -> Task<Result<Navigated>> {
9386 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9387 }
9388
9389 pub fn go_to_definition_split(
9390 &mut self,
9391 _: &GoToDefinitionSplit,
9392 cx: &mut ViewContext<Self>,
9393 ) -> Task<Result<Navigated>> {
9394 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9395 }
9396
9397 pub fn go_to_type_definition_split(
9398 &mut self,
9399 _: &GoToTypeDefinitionSplit,
9400 cx: &mut ViewContext<Self>,
9401 ) -> Task<Result<Navigated>> {
9402 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9403 }
9404
9405 fn go_to_definition_of_kind(
9406 &mut self,
9407 kind: GotoDefinitionKind,
9408 split: bool,
9409 cx: &mut ViewContext<Self>,
9410 ) -> Task<Result<Navigated>> {
9411 let Some(provider) = self.semantics_provider.clone() else {
9412 return Task::ready(Ok(Navigated::No));
9413 };
9414 let head = self.selections.newest::<usize>(cx).head();
9415 let buffer = self.buffer.read(cx);
9416 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9417 text_anchor
9418 } else {
9419 return Task::ready(Ok(Navigated::No));
9420 };
9421
9422 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9423 return Task::ready(Ok(Navigated::No));
9424 };
9425
9426 cx.spawn(|editor, mut cx| async move {
9427 let definitions = definitions.await?;
9428 let navigated = editor
9429 .update(&mut cx, |editor, cx| {
9430 editor.navigate_to_hover_links(
9431 Some(kind),
9432 definitions
9433 .into_iter()
9434 .filter(|location| {
9435 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9436 })
9437 .map(HoverLink::Text)
9438 .collect::<Vec<_>>(),
9439 split,
9440 cx,
9441 )
9442 })?
9443 .await?;
9444 anyhow::Ok(navigated)
9445 })
9446 }
9447
9448 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9449 let selection = self.selections.newest_anchor();
9450 let head = selection.head();
9451 let tail = selection.tail();
9452
9453 let Some((buffer, start_position)) =
9454 self.buffer.read(cx).text_anchor_for_position(head, cx)
9455 else {
9456 return;
9457 };
9458
9459 let end_position = if head != tail {
9460 let Some((_, pos)) = self.buffer.read(cx).text_anchor_for_position(tail, cx) else {
9461 return;
9462 };
9463 Some(pos)
9464 } else {
9465 None
9466 };
9467
9468 let url_finder = cx.spawn(|editor, mut cx| async move {
9469 let url = if let Some(end_pos) = end_position {
9470 find_url_from_range(&buffer, start_position..end_pos, cx.clone())
9471 } else {
9472 find_url(&buffer, start_position, cx.clone()).map(|(_, url)| url)
9473 };
9474
9475 if let Some(url) = url {
9476 editor.update(&mut cx, |_, cx| {
9477 cx.open_url(&url);
9478 })
9479 } else {
9480 Ok(())
9481 }
9482 });
9483
9484 url_finder.detach();
9485 }
9486
9487 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9488 let Some(workspace) = self.workspace() else {
9489 return;
9490 };
9491
9492 let position = self.selections.newest_anchor().head();
9493
9494 let Some((buffer, buffer_position)) =
9495 self.buffer.read(cx).text_anchor_for_position(position, cx)
9496 else {
9497 return;
9498 };
9499
9500 let project = self.project.clone();
9501
9502 cx.spawn(|_, mut cx| async move {
9503 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9504
9505 if let Some((_, path)) = result {
9506 workspace
9507 .update(&mut cx, |workspace, cx| {
9508 workspace.open_resolved_path(path, cx)
9509 })?
9510 .await?;
9511 }
9512 anyhow::Ok(())
9513 })
9514 .detach();
9515 }
9516
9517 pub(crate) fn navigate_to_hover_links(
9518 &mut self,
9519 kind: Option<GotoDefinitionKind>,
9520 mut definitions: Vec<HoverLink>,
9521 split: bool,
9522 cx: &mut ViewContext<Editor>,
9523 ) -> Task<Result<Navigated>> {
9524 // If there is one definition, just open it directly
9525 if definitions.len() == 1 {
9526 let definition = definitions.pop().unwrap();
9527
9528 enum TargetTaskResult {
9529 Location(Option<Location>),
9530 AlreadyNavigated,
9531 }
9532
9533 let target_task = match definition {
9534 HoverLink::Text(link) => {
9535 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9536 }
9537 HoverLink::InlayHint(lsp_location, server_id) => {
9538 let computation = self.compute_target_location(lsp_location, server_id, cx);
9539 cx.background_executor().spawn(async move {
9540 let location = computation.await?;
9541 Ok(TargetTaskResult::Location(location))
9542 })
9543 }
9544 HoverLink::Url(url) => {
9545 cx.open_url(&url);
9546 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9547 }
9548 HoverLink::File(path) => {
9549 if let Some(workspace) = self.workspace() {
9550 cx.spawn(|_, mut cx| async move {
9551 workspace
9552 .update(&mut cx, |workspace, cx| {
9553 workspace.open_resolved_path(path, cx)
9554 })?
9555 .await
9556 .map(|_| TargetTaskResult::AlreadyNavigated)
9557 })
9558 } else {
9559 Task::ready(Ok(TargetTaskResult::Location(None)))
9560 }
9561 }
9562 };
9563 cx.spawn(|editor, mut cx| async move {
9564 let target = match target_task.await.context("target resolution task")? {
9565 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9566 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9567 TargetTaskResult::Location(Some(target)) => target,
9568 };
9569
9570 editor.update(&mut cx, |editor, cx| {
9571 let Some(workspace) = editor.workspace() else {
9572 return Navigated::No;
9573 };
9574 let pane = workspace.read(cx).active_pane().clone();
9575
9576 let range = target.range.to_offset(target.buffer.read(cx));
9577 let range = editor.range_for_match(&range);
9578
9579 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9580 let buffer = target.buffer.read(cx);
9581 let range = check_multiline_range(buffer, range);
9582 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9583 s.select_ranges([range]);
9584 });
9585 } else {
9586 cx.window_context().defer(move |cx| {
9587 let target_editor: View<Self> =
9588 workspace.update(cx, |workspace, cx| {
9589 let pane = if split {
9590 workspace.adjacent_pane(cx)
9591 } else {
9592 workspace.active_pane().clone()
9593 };
9594
9595 workspace.open_project_item(
9596 pane,
9597 target.buffer.clone(),
9598 true,
9599 true,
9600 cx,
9601 )
9602 });
9603 target_editor.update(cx, |target_editor, cx| {
9604 // When selecting a definition in a different buffer, disable the nav history
9605 // to avoid creating a history entry at the previous cursor location.
9606 pane.update(cx, |pane, _| pane.disable_history());
9607 let buffer = target.buffer.read(cx);
9608 let range = check_multiline_range(buffer, range);
9609 target_editor.change_selections(
9610 Some(Autoscroll::focused()),
9611 cx,
9612 |s| {
9613 s.select_ranges([range]);
9614 },
9615 );
9616 pane.update(cx, |pane, _| pane.enable_history());
9617 });
9618 });
9619 }
9620 Navigated::Yes
9621 })
9622 })
9623 } else if !definitions.is_empty() {
9624 cx.spawn(|editor, mut cx| async move {
9625 let (title, location_tasks, workspace) = editor
9626 .update(&mut cx, |editor, cx| {
9627 let tab_kind = match kind {
9628 Some(GotoDefinitionKind::Implementation) => "Implementations",
9629 _ => "Definitions",
9630 };
9631 let title = definitions
9632 .iter()
9633 .find_map(|definition| match definition {
9634 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9635 let buffer = origin.buffer.read(cx);
9636 format!(
9637 "{} for {}",
9638 tab_kind,
9639 buffer
9640 .text_for_range(origin.range.clone())
9641 .collect::<String>()
9642 )
9643 }),
9644 HoverLink::InlayHint(_, _) => None,
9645 HoverLink::Url(_) => None,
9646 HoverLink::File(_) => None,
9647 })
9648 .unwrap_or(tab_kind.to_string());
9649 let location_tasks = definitions
9650 .into_iter()
9651 .map(|definition| match definition {
9652 HoverLink::Text(link) => Task::ready(Ok(Some(link.target))),
9653 HoverLink::InlayHint(lsp_location, server_id) => {
9654 editor.compute_target_location(lsp_location, server_id, cx)
9655 }
9656 HoverLink::Url(_) => Task::ready(Ok(None)),
9657 HoverLink::File(_) => Task::ready(Ok(None)),
9658 })
9659 .collect::<Vec<_>>();
9660 (title, location_tasks, editor.workspace().clone())
9661 })
9662 .context("location tasks preparation")?;
9663
9664 let locations = future::join_all(location_tasks)
9665 .await
9666 .into_iter()
9667 .filter_map(|location| location.transpose())
9668 .collect::<Result<_>>()
9669 .context("location tasks")?;
9670
9671 let Some(workspace) = workspace else {
9672 return Ok(Navigated::No);
9673 };
9674 let opened = workspace
9675 .update(&mut cx, |workspace, cx| {
9676 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9677 })
9678 .ok();
9679
9680 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9681 })
9682 } else {
9683 Task::ready(Ok(Navigated::No))
9684 }
9685 }
9686
9687 fn compute_target_location(
9688 &self,
9689 lsp_location: lsp::Location,
9690 server_id: LanguageServerId,
9691 cx: &mut ViewContext<Self>,
9692 ) -> Task<anyhow::Result<Option<Location>>> {
9693 let Some(project) = self.project.clone() else {
9694 return Task::ready(Ok(None));
9695 };
9696
9697 cx.spawn(move |editor, mut cx| async move {
9698 let location_task = editor.update(&mut cx, |_, cx| {
9699 project.update(cx, |project, cx| {
9700 let language_server_name = project
9701 .language_server_statuses(cx)
9702 .find(|(id, _)| server_id == *id)
9703 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9704 language_server_name.map(|language_server_name| {
9705 project.open_local_buffer_via_lsp(
9706 lsp_location.uri.clone(),
9707 server_id,
9708 language_server_name,
9709 cx,
9710 )
9711 })
9712 })
9713 })?;
9714 let location = match location_task {
9715 Some(task) => Some({
9716 let target_buffer_handle = task.await.context("open local buffer")?;
9717 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9718 let target_start = target_buffer
9719 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9720 let target_end = target_buffer
9721 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9722 target_buffer.anchor_after(target_start)
9723 ..target_buffer.anchor_before(target_end)
9724 })?;
9725 Location {
9726 buffer: target_buffer_handle,
9727 range,
9728 }
9729 }),
9730 None => None,
9731 };
9732 Ok(location)
9733 })
9734 }
9735
9736 pub fn find_all_references(
9737 &mut self,
9738 _: &FindAllReferences,
9739 cx: &mut ViewContext<Self>,
9740 ) -> Option<Task<Result<Navigated>>> {
9741 let selection = self.selections.newest::<usize>(cx);
9742 let multi_buffer = self.buffer.read(cx);
9743 let head = selection.head();
9744
9745 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9746 let head_anchor = multi_buffer_snapshot.anchor_at(
9747 head,
9748 if head < selection.tail() {
9749 Bias::Right
9750 } else {
9751 Bias::Left
9752 },
9753 );
9754
9755 match self
9756 .find_all_references_task_sources
9757 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9758 {
9759 Ok(_) => {
9760 log::info!(
9761 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9762 );
9763 return None;
9764 }
9765 Err(i) => {
9766 self.find_all_references_task_sources.insert(i, head_anchor);
9767 }
9768 }
9769
9770 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9771 let workspace = self.workspace()?;
9772 let project = workspace.read(cx).project().clone();
9773 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9774 Some(cx.spawn(|editor, mut cx| async move {
9775 let _cleanup = defer({
9776 let mut cx = cx.clone();
9777 move || {
9778 let _ = editor.update(&mut cx, |editor, _| {
9779 if let Ok(i) =
9780 editor
9781 .find_all_references_task_sources
9782 .binary_search_by(|anchor| {
9783 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9784 })
9785 {
9786 editor.find_all_references_task_sources.remove(i);
9787 }
9788 });
9789 }
9790 });
9791
9792 let locations = references.await?;
9793 if locations.is_empty() {
9794 return anyhow::Ok(Navigated::No);
9795 }
9796
9797 workspace.update(&mut cx, |workspace, cx| {
9798 let title = locations
9799 .first()
9800 .as_ref()
9801 .map(|location| {
9802 let buffer = location.buffer.read(cx);
9803 format!(
9804 "References to `{}`",
9805 buffer
9806 .text_for_range(location.range.clone())
9807 .collect::<String>()
9808 )
9809 })
9810 .unwrap();
9811 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9812 Navigated::Yes
9813 })
9814 }))
9815 }
9816
9817 /// Opens a multibuffer with the given project locations in it
9818 pub fn open_locations_in_multibuffer(
9819 workspace: &mut Workspace,
9820 mut locations: Vec<Location>,
9821 title: String,
9822 split: bool,
9823 cx: &mut ViewContext<Workspace>,
9824 ) {
9825 // If there are multiple definitions, open them in a multibuffer
9826 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9827 let mut locations = locations.into_iter().peekable();
9828 let mut ranges_to_highlight = Vec::new();
9829 let capability = workspace.project().read(cx).capability();
9830
9831 let excerpt_buffer = cx.new_model(|cx| {
9832 let mut multibuffer = MultiBuffer::new(capability);
9833 while let Some(location) = locations.next() {
9834 let buffer = location.buffer.read(cx);
9835 let mut ranges_for_buffer = Vec::new();
9836 let range = location.range.to_offset(buffer);
9837 ranges_for_buffer.push(range.clone());
9838
9839 while let Some(next_location) = locations.peek() {
9840 if next_location.buffer == location.buffer {
9841 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9842 locations.next();
9843 } else {
9844 break;
9845 }
9846 }
9847
9848 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9849 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9850 location.buffer.clone(),
9851 ranges_for_buffer,
9852 DEFAULT_MULTIBUFFER_CONTEXT,
9853 cx,
9854 ))
9855 }
9856
9857 multibuffer.with_title(title)
9858 });
9859
9860 let editor = cx.new_view(|cx| {
9861 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9862 });
9863 editor.update(cx, |editor, cx| {
9864 if let Some(first_range) = ranges_to_highlight.first() {
9865 editor.change_selections(None, cx, |selections| {
9866 selections.clear_disjoint();
9867 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9868 });
9869 }
9870 editor.highlight_background::<Self>(
9871 &ranges_to_highlight,
9872 |theme| theme.editor_highlighted_line_background,
9873 cx,
9874 );
9875 editor.register_buffers_with_language_servers(cx);
9876 });
9877
9878 let item = Box::new(editor);
9879 let item_id = item.item_id();
9880
9881 if split {
9882 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9883 } else {
9884 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9885 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9886 pane.close_current_preview_item(cx)
9887 } else {
9888 None
9889 }
9890 });
9891 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9892 }
9893 workspace.active_pane().update(cx, |pane, cx| {
9894 pane.set_preview_item_id(Some(item_id), cx);
9895 });
9896 }
9897
9898 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9899 use language::ToOffset as _;
9900
9901 let provider = self.semantics_provider.clone()?;
9902 let selection = self.selections.newest_anchor().clone();
9903 let (cursor_buffer, cursor_buffer_position) = self
9904 .buffer
9905 .read(cx)
9906 .text_anchor_for_position(selection.head(), cx)?;
9907 let (tail_buffer, cursor_buffer_position_end) = self
9908 .buffer
9909 .read(cx)
9910 .text_anchor_for_position(selection.tail(), cx)?;
9911 if tail_buffer != cursor_buffer {
9912 return None;
9913 }
9914
9915 let snapshot = cursor_buffer.read(cx).snapshot();
9916 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9917 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9918 let prepare_rename = provider
9919 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
9920 .unwrap_or_else(|| Task::ready(Ok(None)));
9921 drop(snapshot);
9922
9923 Some(cx.spawn(|this, mut cx| async move {
9924 let rename_range = if let Some(range) = prepare_rename.await? {
9925 Some(range)
9926 } else {
9927 this.update(&mut cx, |this, cx| {
9928 let buffer = this.buffer.read(cx).snapshot(cx);
9929 let mut buffer_highlights = this
9930 .document_highlights_for_position(selection.head(), &buffer)
9931 .filter(|highlight| {
9932 highlight.start.excerpt_id == selection.head().excerpt_id
9933 && highlight.end.excerpt_id == selection.head().excerpt_id
9934 });
9935 buffer_highlights
9936 .next()
9937 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9938 })?
9939 };
9940 if let Some(rename_range) = rename_range {
9941 this.update(&mut cx, |this, cx| {
9942 let snapshot = cursor_buffer.read(cx).snapshot();
9943 let rename_buffer_range = rename_range.to_offset(&snapshot);
9944 let cursor_offset_in_rename_range =
9945 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9946 let cursor_offset_in_rename_range_end =
9947 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9948
9949 this.take_rename(false, cx);
9950 let buffer = this.buffer.read(cx).read(cx);
9951 let cursor_offset = selection.head().to_offset(&buffer);
9952 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9953 let rename_end = rename_start + rename_buffer_range.len();
9954 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9955 let mut old_highlight_id = None;
9956 let old_name: Arc<str> = buffer
9957 .chunks(rename_start..rename_end, true)
9958 .map(|chunk| {
9959 if old_highlight_id.is_none() {
9960 old_highlight_id = chunk.syntax_highlight_id;
9961 }
9962 chunk.text
9963 })
9964 .collect::<String>()
9965 .into();
9966
9967 drop(buffer);
9968
9969 // Position the selection in the rename editor so that it matches the current selection.
9970 this.show_local_selections = false;
9971 let rename_editor = cx.new_view(|cx| {
9972 let mut editor = Editor::single_line(cx);
9973 editor.buffer.update(cx, |buffer, cx| {
9974 buffer.edit([(0..0, old_name.clone())], None, cx)
9975 });
9976 let rename_selection_range = match cursor_offset_in_rename_range
9977 .cmp(&cursor_offset_in_rename_range_end)
9978 {
9979 Ordering::Equal => {
9980 editor.select_all(&SelectAll, cx);
9981 return editor;
9982 }
9983 Ordering::Less => {
9984 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
9985 }
9986 Ordering::Greater => {
9987 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
9988 }
9989 };
9990 if rename_selection_range.end > old_name.len() {
9991 editor.select_all(&SelectAll, cx);
9992 } else {
9993 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9994 s.select_ranges([rename_selection_range]);
9995 });
9996 }
9997 editor
9998 });
9999 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10000 if e == &EditorEvent::Focused {
10001 cx.emit(EditorEvent::FocusedIn)
10002 }
10003 })
10004 .detach();
10005
10006 let write_highlights =
10007 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10008 let read_highlights =
10009 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10010 let ranges = write_highlights
10011 .iter()
10012 .flat_map(|(_, ranges)| ranges.iter())
10013 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10014 .cloned()
10015 .collect();
10016
10017 this.highlight_text::<Rename>(
10018 ranges,
10019 HighlightStyle {
10020 fade_out: Some(0.6),
10021 ..Default::default()
10022 },
10023 cx,
10024 );
10025 let rename_focus_handle = rename_editor.focus_handle(cx);
10026 cx.focus(&rename_focus_handle);
10027 let block_id = this.insert_blocks(
10028 [BlockProperties {
10029 style: BlockStyle::Flex,
10030 placement: BlockPlacement::Below(range.start),
10031 height: 1,
10032 render: Arc::new({
10033 let rename_editor = rename_editor.clone();
10034 move |cx: &mut BlockContext| {
10035 let mut text_style = cx.editor_style.text.clone();
10036 if let Some(highlight_style) = old_highlight_id
10037 .and_then(|h| h.style(&cx.editor_style.syntax))
10038 {
10039 text_style = text_style.highlight(highlight_style);
10040 }
10041 div()
10042 .block_mouse_down()
10043 .pl(cx.anchor_x)
10044 .child(EditorElement::new(
10045 &rename_editor,
10046 EditorStyle {
10047 background: cx.theme().system().transparent,
10048 local_player: cx.editor_style.local_player,
10049 text: text_style,
10050 scrollbar_width: cx.editor_style.scrollbar_width,
10051 syntax: cx.editor_style.syntax.clone(),
10052 status: cx.editor_style.status.clone(),
10053 inlay_hints_style: HighlightStyle {
10054 font_weight: Some(FontWeight::BOLD),
10055 ..make_inlay_hints_style(cx)
10056 },
10057 inline_completion_styles: make_suggestion_styles(
10058 cx,
10059 ),
10060 ..EditorStyle::default()
10061 },
10062 ))
10063 .into_any_element()
10064 }
10065 }),
10066 priority: 0,
10067 }],
10068 Some(Autoscroll::fit()),
10069 cx,
10070 )[0];
10071 this.pending_rename = Some(RenameState {
10072 range,
10073 old_name,
10074 editor: rename_editor,
10075 block_id,
10076 });
10077 })?;
10078 }
10079
10080 Ok(())
10081 }))
10082 }
10083
10084 pub fn confirm_rename(
10085 &mut self,
10086 _: &ConfirmRename,
10087 cx: &mut ViewContext<Self>,
10088 ) -> Option<Task<Result<()>>> {
10089 let rename = self.take_rename(false, cx)?;
10090 let workspace = self.workspace()?.downgrade();
10091 let (buffer, start) = self
10092 .buffer
10093 .read(cx)
10094 .text_anchor_for_position(rename.range.start, cx)?;
10095 let (end_buffer, _) = self
10096 .buffer
10097 .read(cx)
10098 .text_anchor_for_position(rename.range.end, cx)?;
10099 if buffer != end_buffer {
10100 return None;
10101 }
10102
10103 let old_name = rename.old_name;
10104 let new_name = rename.editor.read(cx).text(cx);
10105
10106 let rename = self.semantics_provider.as_ref()?.perform_rename(
10107 &buffer,
10108 start,
10109 new_name.clone(),
10110 cx,
10111 )?;
10112
10113 Some(cx.spawn(|editor, mut cx| async move {
10114 let project_transaction = rename.await?;
10115 Self::open_project_transaction(
10116 &editor,
10117 workspace,
10118 project_transaction,
10119 format!("Rename: {} → {}", old_name, new_name),
10120 cx.clone(),
10121 )
10122 .await?;
10123
10124 editor.update(&mut cx, |editor, cx| {
10125 editor.refresh_document_highlights(cx);
10126 })?;
10127 Ok(())
10128 }))
10129 }
10130
10131 fn take_rename(
10132 &mut self,
10133 moving_cursor: bool,
10134 cx: &mut ViewContext<Self>,
10135 ) -> Option<RenameState> {
10136 let rename = self.pending_rename.take()?;
10137 if rename.editor.focus_handle(cx).is_focused(cx) {
10138 cx.focus(&self.focus_handle);
10139 }
10140
10141 self.remove_blocks(
10142 [rename.block_id].into_iter().collect(),
10143 Some(Autoscroll::fit()),
10144 cx,
10145 );
10146 self.clear_highlights::<Rename>(cx);
10147 self.show_local_selections = true;
10148
10149 if moving_cursor {
10150 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10151 editor.selections.newest::<usize>(cx).head()
10152 });
10153
10154 // Update the selection to match the position of the selection inside
10155 // the rename editor.
10156 let snapshot = self.buffer.read(cx).read(cx);
10157 let rename_range = rename.range.to_offset(&snapshot);
10158 let cursor_in_editor = snapshot
10159 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10160 .min(rename_range.end);
10161 drop(snapshot);
10162
10163 self.change_selections(None, cx, |s| {
10164 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10165 });
10166 } else {
10167 self.refresh_document_highlights(cx);
10168 }
10169
10170 Some(rename)
10171 }
10172
10173 pub fn pending_rename(&self) -> Option<&RenameState> {
10174 self.pending_rename.as_ref()
10175 }
10176
10177 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10178 let project = match &self.project {
10179 Some(project) => project.clone(),
10180 None => return None,
10181 };
10182
10183 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10184 }
10185
10186 fn format_selections(
10187 &mut self,
10188 _: &FormatSelections,
10189 cx: &mut ViewContext<Self>,
10190 ) -> Option<Task<Result<()>>> {
10191 let project = match &self.project {
10192 Some(project) => project.clone(),
10193 None => return None,
10194 };
10195
10196 let selections = self
10197 .selections
10198 .all_adjusted(cx)
10199 .into_iter()
10200 .filter(|s| !s.is_empty())
10201 .collect_vec();
10202
10203 Some(self.perform_format(
10204 project,
10205 FormatTrigger::Manual,
10206 FormatTarget::Ranges(selections),
10207 cx,
10208 ))
10209 }
10210
10211 fn perform_format(
10212 &mut self,
10213 project: Model<Project>,
10214 trigger: FormatTrigger,
10215 target: FormatTarget,
10216 cx: &mut ViewContext<Self>,
10217 ) -> Task<Result<()>> {
10218 let buffer = self.buffer().clone();
10219 let mut buffers = buffer.read(cx).all_buffers();
10220 if trigger == FormatTrigger::Save {
10221 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10222 }
10223
10224 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10225 let format = project.update(cx, |project, cx| {
10226 project.format(buffers, true, trigger, target, cx)
10227 });
10228
10229 cx.spawn(|_, mut cx| async move {
10230 let transaction = futures::select_biased! {
10231 () = timeout => {
10232 log::warn!("timed out waiting for formatting");
10233 None
10234 }
10235 transaction = format.log_err().fuse() => transaction,
10236 };
10237
10238 buffer
10239 .update(&mut cx, |buffer, cx| {
10240 if let Some(transaction) = transaction {
10241 if !buffer.is_singleton() {
10242 buffer.push_transaction(&transaction.0, cx);
10243 }
10244 }
10245
10246 cx.notify();
10247 })
10248 .ok();
10249
10250 Ok(())
10251 })
10252 }
10253
10254 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10255 if let Some(project) = self.project.clone() {
10256 self.buffer.update(cx, |multi_buffer, cx| {
10257 project.update(cx, |project, cx| {
10258 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10259 });
10260 })
10261 }
10262 }
10263
10264 fn cancel_language_server_work(
10265 &mut self,
10266 _: &actions::CancelLanguageServerWork,
10267 cx: &mut ViewContext<Self>,
10268 ) {
10269 if let Some(project) = self.project.clone() {
10270 self.buffer.update(cx, |multi_buffer, cx| {
10271 project.update(cx, |project, cx| {
10272 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10273 });
10274 })
10275 }
10276 }
10277
10278 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10279 cx.show_character_palette();
10280 }
10281
10282 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10283 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10284 let buffer = self.buffer.read(cx).snapshot(cx);
10285 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10286 let is_valid = buffer
10287 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10288 .any(|entry| {
10289 entry.diagnostic.is_primary
10290 && !entry.range.is_empty()
10291 && entry.range.start == primary_range_start
10292 && entry.diagnostic.message == active_diagnostics.primary_message
10293 });
10294
10295 if is_valid != active_diagnostics.is_valid {
10296 active_diagnostics.is_valid = is_valid;
10297 let mut new_styles = HashMap::default();
10298 for (block_id, diagnostic) in &active_diagnostics.blocks {
10299 new_styles.insert(
10300 *block_id,
10301 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10302 );
10303 }
10304 self.display_map.update(cx, |display_map, _cx| {
10305 display_map.replace_blocks(new_styles)
10306 });
10307 }
10308 }
10309 }
10310
10311 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10312 self.dismiss_diagnostics(cx);
10313 let snapshot = self.snapshot(cx);
10314 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10315 let buffer = self.buffer.read(cx).snapshot(cx);
10316
10317 let mut primary_range = None;
10318 let mut primary_message = None;
10319 let mut group_end = Point::zero();
10320 let diagnostic_group = buffer
10321 .diagnostic_group::<MultiBufferPoint>(group_id)
10322 .filter_map(|entry| {
10323 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10324 && (entry.range.start.row == entry.range.end.row
10325 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10326 {
10327 return None;
10328 }
10329 if entry.range.end > group_end {
10330 group_end = entry.range.end;
10331 }
10332 if entry.diagnostic.is_primary {
10333 primary_range = Some(entry.range.clone());
10334 primary_message = Some(entry.diagnostic.message.clone());
10335 }
10336 Some(entry)
10337 })
10338 .collect::<Vec<_>>();
10339 let primary_range = primary_range?;
10340 let primary_message = primary_message?;
10341 let primary_range =
10342 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10343
10344 let blocks = display_map
10345 .insert_blocks(
10346 diagnostic_group.iter().map(|entry| {
10347 let diagnostic = entry.diagnostic.clone();
10348 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10349 BlockProperties {
10350 style: BlockStyle::Fixed,
10351 placement: BlockPlacement::Below(
10352 buffer.anchor_after(entry.range.start),
10353 ),
10354 height: message_height,
10355 render: diagnostic_block_renderer(diagnostic, None, true, true),
10356 priority: 0,
10357 }
10358 }),
10359 cx,
10360 )
10361 .into_iter()
10362 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10363 .collect();
10364
10365 Some(ActiveDiagnosticGroup {
10366 primary_range,
10367 primary_message,
10368 group_id,
10369 blocks,
10370 is_valid: true,
10371 })
10372 });
10373 self.active_diagnostics.is_some()
10374 }
10375
10376 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10377 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10378 self.display_map.update(cx, |display_map, cx| {
10379 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10380 });
10381 cx.notify();
10382 }
10383 }
10384
10385 pub fn set_selections_from_remote(
10386 &mut self,
10387 selections: Vec<Selection<Anchor>>,
10388 pending_selection: Option<Selection<Anchor>>,
10389 cx: &mut ViewContext<Self>,
10390 ) {
10391 let old_cursor_position = self.selections.newest_anchor().head();
10392 self.selections.change_with(cx, |s| {
10393 s.select_anchors(selections);
10394 if let Some(pending_selection) = pending_selection {
10395 s.set_pending(pending_selection, SelectMode::Character);
10396 } else {
10397 s.clear_pending();
10398 }
10399 });
10400 self.selections_did_change(false, &old_cursor_position, true, cx);
10401 }
10402
10403 fn push_to_selection_history(&mut self) {
10404 self.selection_history.push(SelectionHistoryEntry {
10405 selections: self.selections.disjoint_anchors(),
10406 select_next_state: self.select_next_state.clone(),
10407 select_prev_state: self.select_prev_state.clone(),
10408 add_selections_state: self.add_selections_state.clone(),
10409 });
10410 }
10411
10412 pub fn transact(
10413 &mut self,
10414 cx: &mut ViewContext<Self>,
10415 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10416 ) -> Option<TransactionId> {
10417 self.start_transaction_at(Instant::now(), cx);
10418 update(self, cx);
10419 self.end_transaction_at(Instant::now(), cx)
10420 }
10421
10422 pub fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10423 self.end_selection(cx);
10424 if let Some(tx_id) = self
10425 .buffer
10426 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10427 {
10428 self.selection_history
10429 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10430 cx.emit(EditorEvent::TransactionBegun {
10431 transaction_id: tx_id,
10432 })
10433 }
10434 }
10435
10436 pub fn end_transaction_at(
10437 &mut self,
10438 now: Instant,
10439 cx: &mut ViewContext<Self>,
10440 ) -> Option<TransactionId> {
10441 if let Some(transaction_id) = self
10442 .buffer
10443 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10444 {
10445 if let Some((_, end_selections)) =
10446 self.selection_history.transaction_mut(transaction_id)
10447 {
10448 *end_selections = Some(self.selections.disjoint_anchors());
10449 } else {
10450 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10451 }
10452
10453 cx.emit(EditorEvent::Edited { transaction_id });
10454 Some(transaction_id)
10455 } else {
10456 None
10457 }
10458 }
10459
10460 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10461 if self.is_singleton(cx) {
10462 let selection = self.selections.newest::<Point>(cx);
10463
10464 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10465 let range = if selection.is_empty() {
10466 let point = selection.head().to_display_point(&display_map);
10467 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10468 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10469 .to_point(&display_map);
10470 start..end
10471 } else {
10472 selection.range()
10473 };
10474 if display_map.folds_in_range(range).next().is_some() {
10475 self.unfold_lines(&Default::default(), cx)
10476 } else {
10477 self.fold(&Default::default(), cx)
10478 }
10479 } else {
10480 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10481 let mut toggled_buffers = HashSet::default();
10482 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10483 self.selections
10484 .disjoint_anchors()
10485 .into_iter()
10486 .map(|selection| selection.range()),
10487 ) {
10488 let buffer_id = buffer_snapshot.remote_id();
10489 if toggled_buffers.insert(buffer_id) {
10490 if self.buffer_folded(buffer_id, cx) {
10491 self.unfold_buffer(buffer_id, cx);
10492 } else {
10493 self.fold_buffer(buffer_id, cx);
10494 }
10495 }
10496 }
10497 }
10498 }
10499
10500 pub fn toggle_fold_recursive(
10501 &mut self,
10502 _: &actions::ToggleFoldRecursive,
10503 cx: &mut ViewContext<Self>,
10504 ) {
10505 let selection = self.selections.newest::<Point>(cx);
10506
10507 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10508 let range = if selection.is_empty() {
10509 let point = selection.head().to_display_point(&display_map);
10510 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10511 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10512 .to_point(&display_map);
10513 start..end
10514 } else {
10515 selection.range()
10516 };
10517 if display_map.folds_in_range(range).next().is_some() {
10518 self.unfold_recursive(&Default::default(), cx)
10519 } else {
10520 self.fold_recursive(&Default::default(), cx)
10521 }
10522 }
10523
10524 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10525 if self.is_singleton(cx) {
10526 let mut to_fold = Vec::new();
10527 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10528 let selections = self.selections.all_adjusted(cx);
10529
10530 for selection in selections {
10531 let range = selection.range().sorted();
10532 let buffer_start_row = range.start.row;
10533
10534 if range.start.row != range.end.row {
10535 let mut found = false;
10536 let mut row = range.start.row;
10537 while row <= range.end.row {
10538 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row))
10539 {
10540 found = true;
10541 row = crease.range().end.row + 1;
10542 to_fold.push(crease);
10543 } else {
10544 row += 1
10545 }
10546 }
10547 if found {
10548 continue;
10549 }
10550 }
10551
10552 for row in (0..=range.start.row).rev() {
10553 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10554 if crease.range().end.row >= buffer_start_row {
10555 to_fold.push(crease);
10556 if row <= range.start.row {
10557 break;
10558 }
10559 }
10560 }
10561 }
10562 }
10563
10564 self.fold_creases(to_fold, true, cx);
10565 } else {
10566 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10567 let mut folded_buffers = HashSet::default();
10568 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10569 self.selections
10570 .disjoint_anchors()
10571 .into_iter()
10572 .map(|selection| selection.range()),
10573 ) {
10574 let buffer_id = buffer_snapshot.remote_id();
10575 if folded_buffers.insert(buffer_id) {
10576 self.fold_buffer(buffer_id, cx);
10577 }
10578 }
10579 }
10580 }
10581
10582 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10583 if !self.buffer.read(cx).is_singleton() {
10584 return;
10585 }
10586
10587 let fold_at_level = fold_at.level;
10588 let snapshot = self.buffer.read(cx).snapshot(cx);
10589 let mut to_fold = Vec::new();
10590 let mut stack = vec![(0, snapshot.max_row().0, 1)];
10591
10592 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10593 while start_row < end_row {
10594 match self
10595 .snapshot(cx)
10596 .crease_for_buffer_row(MultiBufferRow(start_row))
10597 {
10598 Some(crease) => {
10599 let nested_start_row = crease.range().start.row + 1;
10600 let nested_end_row = crease.range().end.row;
10601
10602 if current_level < fold_at_level {
10603 stack.push((nested_start_row, nested_end_row, current_level + 1));
10604 } else if current_level == fold_at_level {
10605 to_fold.push(crease);
10606 }
10607
10608 start_row = nested_end_row + 1;
10609 }
10610 None => start_row += 1,
10611 }
10612 }
10613 }
10614
10615 self.fold_creases(to_fold, true, cx);
10616 }
10617
10618 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10619 if self.buffer.read(cx).is_singleton() {
10620 let mut fold_ranges = Vec::new();
10621 let snapshot = self.buffer.read(cx).snapshot(cx);
10622
10623 for row in 0..snapshot.max_row().0 {
10624 if let Some(foldable_range) =
10625 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
10626 {
10627 fold_ranges.push(foldable_range);
10628 }
10629 }
10630
10631 self.fold_creases(fold_ranges, true, cx);
10632 } else {
10633 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10634 editor
10635 .update(&mut cx, |editor, cx| {
10636 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10637 editor.fold_buffer(buffer_id, cx);
10638 }
10639 })
10640 .ok();
10641 });
10642 }
10643 }
10644
10645 pub fn fold_function_bodies(
10646 &mut self,
10647 _: &actions::FoldFunctionBodies,
10648 cx: &mut ViewContext<Self>,
10649 ) {
10650 let snapshot = self.buffer.read(cx).snapshot(cx);
10651 let Some((_, _, buffer)) = snapshot.as_singleton() else {
10652 return;
10653 };
10654 let creases = buffer
10655 .function_body_fold_ranges(0..buffer.len())
10656 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
10657 .collect();
10658
10659 self.fold_creases(creases, true, cx);
10660 }
10661
10662 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10663 let mut to_fold = Vec::new();
10664 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10665 let selections = self.selections.all_adjusted(cx);
10666
10667 for selection in selections {
10668 let range = selection.range().sorted();
10669 let buffer_start_row = range.start.row;
10670
10671 if range.start.row != range.end.row {
10672 let mut found = false;
10673 for row in range.start.row..=range.end.row {
10674 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10675 found = true;
10676 to_fold.push(crease);
10677 }
10678 }
10679 if found {
10680 continue;
10681 }
10682 }
10683
10684 for row in (0..=range.start.row).rev() {
10685 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10686 if crease.range().end.row >= buffer_start_row {
10687 to_fold.push(crease);
10688 } else {
10689 break;
10690 }
10691 }
10692 }
10693 }
10694
10695 self.fold_creases(to_fold, true, cx);
10696 }
10697
10698 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10699 let buffer_row = fold_at.buffer_row;
10700 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10701
10702 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
10703 let autoscroll = self
10704 .selections
10705 .all::<Point>(cx)
10706 .iter()
10707 .any(|selection| crease.range().overlaps(&selection.range()));
10708
10709 self.fold_creases(vec![crease], autoscroll, cx);
10710 }
10711 }
10712
10713 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10714 if self.is_singleton(cx) {
10715 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10716 let buffer = &display_map.buffer_snapshot;
10717 let selections = self.selections.all::<Point>(cx);
10718 let ranges = selections
10719 .iter()
10720 .map(|s| {
10721 let range = s.display_range(&display_map).sorted();
10722 let mut start = range.start.to_point(&display_map);
10723 let mut end = range.end.to_point(&display_map);
10724 start.column = 0;
10725 end.column = buffer.line_len(MultiBufferRow(end.row));
10726 start..end
10727 })
10728 .collect::<Vec<_>>();
10729
10730 self.unfold_ranges(&ranges, true, true, cx);
10731 } else {
10732 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10733 let mut unfolded_buffers = HashSet::default();
10734 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10735 self.selections
10736 .disjoint_anchors()
10737 .into_iter()
10738 .map(|selection| selection.range()),
10739 ) {
10740 let buffer_id = buffer_snapshot.remote_id();
10741 if unfolded_buffers.insert(buffer_id) {
10742 self.unfold_buffer(buffer_id, cx);
10743 }
10744 }
10745 }
10746 }
10747
10748 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10749 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10750 let selections = self.selections.all::<Point>(cx);
10751 let ranges = selections
10752 .iter()
10753 .map(|s| {
10754 let mut range = s.display_range(&display_map).sorted();
10755 *range.start.column_mut() = 0;
10756 *range.end.column_mut() = display_map.line_len(range.end.row());
10757 let start = range.start.to_point(&display_map);
10758 let end = range.end.to_point(&display_map);
10759 start..end
10760 })
10761 .collect::<Vec<_>>();
10762
10763 self.unfold_ranges(&ranges, true, true, cx);
10764 }
10765
10766 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10767 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10768
10769 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10770 ..Point::new(
10771 unfold_at.buffer_row.0,
10772 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10773 );
10774
10775 let autoscroll = self
10776 .selections
10777 .all::<Point>(cx)
10778 .iter()
10779 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10780
10781 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
10782 }
10783
10784 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10785 if self.buffer.read(cx).is_singleton() {
10786 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10787 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
10788 } else {
10789 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10790 editor
10791 .update(&mut cx, |editor, cx| {
10792 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10793 editor.unfold_buffer(buffer_id, cx);
10794 }
10795 })
10796 .ok();
10797 });
10798 }
10799 }
10800
10801 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10802 let selections = self.selections.all::<Point>(cx);
10803 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10804 let line_mode = self.selections.line_mode;
10805 let ranges = selections
10806 .into_iter()
10807 .map(|s| {
10808 if line_mode {
10809 let start = Point::new(s.start.row, 0);
10810 let end = Point::new(
10811 s.end.row,
10812 display_map
10813 .buffer_snapshot
10814 .line_len(MultiBufferRow(s.end.row)),
10815 );
10816 Crease::simple(start..end, display_map.fold_placeholder.clone())
10817 } else {
10818 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
10819 }
10820 })
10821 .collect::<Vec<_>>();
10822 self.fold_creases(ranges, true, cx);
10823 }
10824
10825 pub fn fold_creases<T: ToOffset + Clone>(
10826 &mut self,
10827 creases: Vec<Crease<T>>,
10828 auto_scroll: bool,
10829 cx: &mut ViewContext<Self>,
10830 ) {
10831 if creases.is_empty() {
10832 return;
10833 }
10834
10835 let mut buffers_affected = HashSet::default();
10836 let multi_buffer = self.buffer().read(cx);
10837 for crease in &creases {
10838 if let Some((_, buffer, _)) =
10839 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
10840 {
10841 buffers_affected.insert(buffer.read(cx).remote_id());
10842 };
10843 }
10844
10845 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
10846
10847 if auto_scroll {
10848 self.request_autoscroll(Autoscroll::fit(), cx);
10849 }
10850
10851 for buffer_id in buffers_affected {
10852 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10853 }
10854
10855 cx.notify();
10856
10857 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10858 // Clear diagnostics block when folding a range that contains it.
10859 let snapshot = self.snapshot(cx);
10860 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10861 drop(snapshot);
10862 self.active_diagnostics = Some(active_diagnostics);
10863 self.dismiss_diagnostics(cx);
10864 } else {
10865 self.active_diagnostics = Some(active_diagnostics);
10866 }
10867 }
10868
10869 self.scrollbar_marker_state.dirty = true;
10870 }
10871
10872 /// Removes any folds whose ranges intersect any of the given ranges.
10873 pub fn unfold_ranges<T: ToOffset + Clone>(
10874 &mut self,
10875 ranges: &[Range<T>],
10876 inclusive: bool,
10877 auto_scroll: bool,
10878 cx: &mut ViewContext<Self>,
10879 ) {
10880 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10881 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
10882 });
10883 }
10884
10885 pub fn fold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10886 if self.buffer().read(cx).is_singleton() || self.buffer_folded(buffer_id, cx) {
10887 return;
10888 }
10889 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10890 return;
10891 };
10892 let folded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10893 self.display_map
10894 .update(cx, |display_map, cx| display_map.fold_buffer(buffer_id, cx));
10895 cx.emit(EditorEvent::BufferFoldToggled {
10896 ids: folded_excerpts.iter().map(|&(id, _)| id).collect(),
10897 folded: true,
10898 });
10899 cx.notify();
10900 }
10901
10902 pub fn unfold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10903 if self.buffer().read(cx).is_singleton() || !self.buffer_folded(buffer_id, cx) {
10904 return;
10905 }
10906 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10907 return;
10908 };
10909 let unfolded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10910 self.display_map.update(cx, |display_map, cx| {
10911 display_map.unfold_buffer(buffer_id, cx);
10912 });
10913 cx.emit(EditorEvent::BufferFoldToggled {
10914 ids: unfolded_excerpts.iter().map(|&(id, _)| id).collect(),
10915 folded: false,
10916 });
10917 cx.notify();
10918 }
10919
10920 pub fn buffer_folded(&self, buffer: BufferId, cx: &AppContext) -> bool {
10921 self.display_map.read(cx).buffer_folded(buffer)
10922 }
10923
10924 /// Removes any folds with the given ranges.
10925 pub fn remove_folds_with_type<T: ToOffset + Clone>(
10926 &mut self,
10927 ranges: &[Range<T>],
10928 type_id: TypeId,
10929 auto_scroll: bool,
10930 cx: &mut ViewContext<Self>,
10931 ) {
10932 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10933 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
10934 });
10935 }
10936
10937 fn remove_folds_with<T: ToOffset + Clone>(
10938 &mut self,
10939 ranges: &[Range<T>],
10940 auto_scroll: bool,
10941 cx: &mut ViewContext<Self>,
10942 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
10943 ) {
10944 if ranges.is_empty() {
10945 return;
10946 }
10947
10948 let mut buffers_affected = HashSet::default();
10949 let multi_buffer = self.buffer().read(cx);
10950 for range in ranges {
10951 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10952 buffers_affected.insert(buffer.read(cx).remote_id());
10953 };
10954 }
10955
10956 self.display_map.update(cx, update);
10957
10958 if auto_scroll {
10959 self.request_autoscroll(Autoscroll::fit(), cx);
10960 }
10961
10962 for buffer_id in buffers_affected {
10963 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10964 }
10965
10966 cx.notify();
10967 self.scrollbar_marker_state.dirty = true;
10968 self.active_indent_guides_state.dirty = true;
10969 }
10970
10971 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
10972 self.display_map.read(cx).fold_placeholder.clone()
10973 }
10974
10975 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10976 if hovered != self.gutter_hovered {
10977 self.gutter_hovered = hovered;
10978 cx.notify();
10979 }
10980 }
10981
10982 pub fn insert_blocks(
10983 &mut self,
10984 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
10985 autoscroll: Option<Autoscroll>,
10986 cx: &mut ViewContext<Self>,
10987 ) -> Vec<CustomBlockId> {
10988 let blocks = self
10989 .display_map
10990 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
10991 if let Some(autoscroll) = autoscroll {
10992 self.request_autoscroll(autoscroll, cx);
10993 }
10994 cx.notify();
10995 blocks
10996 }
10997
10998 pub fn resize_blocks(
10999 &mut self,
11000 heights: HashMap<CustomBlockId, u32>,
11001 autoscroll: Option<Autoscroll>,
11002 cx: &mut ViewContext<Self>,
11003 ) {
11004 self.display_map
11005 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11006 if let Some(autoscroll) = autoscroll {
11007 self.request_autoscroll(autoscroll, cx);
11008 }
11009 cx.notify();
11010 }
11011
11012 pub fn replace_blocks(
11013 &mut self,
11014 renderers: HashMap<CustomBlockId, RenderBlock>,
11015 autoscroll: Option<Autoscroll>,
11016 cx: &mut ViewContext<Self>,
11017 ) {
11018 self.display_map
11019 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11020 if let Some(autoscroll) = autoscroll {
11021 self.request_autoscroll(autoscroll, cx);
11022 }
11023 cx.notify();
11024 }
11025
11026 pub fn remove_blocks(
11027 &mut self,
11028 block_ids: HashSet<CustomBlockId>,
11029 autoscroll: Option<Autoscroll>,
11030 cx: &mut ViewContext<Self>,
11031 ) {
11032 self.display_map.update(cx, |display_map, cx| {
11033 display_map.remove_blocks(block_ids, cx)
11034 });
11035 if let Some(autoscroll) = autoscroll {
11036 self.request_autoscroll(autoscroll, cx);
11037 }
11038 cx.notify();
11039 }
11040
11041 pub fn row_for_block(
11042 &self,
11043 block_id: CustomBlockId,
11044 cx: &mut ViewContext<Self>,
11045 ) -> Option<DisplayRow> {
11046 self.display_map
11047 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11048 }
11049
11050 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11051 self.focused_block = Some(focused_block);
11052 }
11053
11054 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11055 self.focused_block.take()
11056 }
11057
11058 pub fn insert_creases(
11059 &mut self,
11060 creases: impl IntoIterator<Item = Crease<Anchor>>,
11061 cx: &mut ViewContext<Self>,
11062 ) -> Vec<CreaseId> {
11063 self.display_map
11064 .update(cx, |map, cx| map.insert_creases(creases, cx))
11065 }
11066
11067 pub fn remove_creases(
11068 &mut self,
11069 ids: impl IntoIterator<Item = CreaseId>,
11070 cx: &mut ViewContext<Self>,
11071 ) {
11072 self.display_map
11073 .update(cx, |map, cx| map.remove_creases(ids, cx));
11074 }
11075
11076 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11077 self.display_map
11078 .update(cx, |map, cx| map.snapshot(cx))
11079 .longest_row()
11080 }
11081
11082 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11083 self.display_map
11084 .update(cx, |map, cx| map.snapshot(cx))
11085 .max_point()
11086 }
11087
11088 pub fn text(&self, cx: &AppContext) -> String {
11089 self.buffer.read(cx).read(cx).text()
11090 }
11091
11092 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11093 let text = self.text(cx);
11094 let text = text.trim();
11095
11096 if text.is_empty() {
11097 return None;
11098 }
11099
11100 Some(text.to_string())
11101 }
11102
11103 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11104 self.transact(cx, |this, cx| {
11105 this.buffer
11106 .read(cx)
11107 .as_singleton()
11108 .expect("you can only call set_text on editors for singleton buffers")
11109 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11110 });
11111 }
11112
11113 pub fn display_text(&self, cx: &mut AppContext) -> String {
11114 self.display_map
11115 .update(cx, |map, cx| map.snapshot(cx))
11116 .text()
11117 }
11118
11119 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11120 let mut wrap_guides = smallvec::smallvec![];
11121
11122 if self.show_wrap_guides == Some(false) {
11123 return wrap_guides;
11124 }
11125
11126 let settings = self.buffer.read(cx).settings_at(0, cx);
11127 if settings.show_wrap_guides {
11128 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11129 wrap_guides.push((soft_wrap as usize, true));
11130 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11131 wrap_guides.push((soft_wrap as usize, true));
11132 }
11133 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11134 }
11135
11136 wrap_guides
11137 }
11138
11139 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11140 let settings = self.buffer.read(cx).settings_at(0, cx);
11141 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11142 match mode {
11143 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11144 SoftWrap::None
11145 }
11146 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11147 language_settings::SoftWrap::PreferredLineLength => {
11148 SoftWrap::Column(settings.preferred_line_length)
11149 }
11150 language_settings::SoftWrap::Bounded => {
11151 SoftWrap::Bounded(settings.preferred_line_length)
11152 }
11153 }
11154 }
11155
11156 pub fn set_soft_wrap_mode(
11157 &mut self,
11158 mode: language_settings::SoftWrap,
11159 cx: &mut ViewContext<Self>,
11160 ) {
11161 self.soft_wrap_mode_override = Some(mode);
11162 cx.notify();
11163 }
11164
11165 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11166 self.text_style_refinement = Some(style);
11167 }
11168
11169 /// called by the Element so we know what style we were most recently rendered with.
11170 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11171 let rem_size = cx.rem_size();
11172 self.display_map.update(cx, |map, cx| {
11173 map.set_font(
11174 style.text.font(),
11175 style.text.font_size.to_pixels(rem_size),
11176 cx,
11177 )
11178 });
11179 self.style = Some(style);
11180 }
11181
11182 pub fn style(&self) -> Option<&EditorStyle> {
11183 self.style.as_ref()
11184 }
11185
11186 // Called by the element. This method is not designed to be called outside of the editor
11187 // element's layout code because it does not notify when rewrapping is computed synchronously.
11188 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11189 self.display_map
11190 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11191 }
11192
11193 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11194 if self.soft_wrap_mode_override.is_some() {
11195 self.soft_wrap_mode_override.take();
11196 } else {
11197 let soft_wrap = match self.soft_wrap_mode(cx) {
11198 SoftWrap::GitDiff => return,
11199 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11200 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11201 language_settings::SoftWrap::None
11202 }
11203 };
11204 self.soft_wrap_mode_override = Some(soft_wrap);
11205 }
11206 cx.notify();
11207 }
11208
11209 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11210 let Some(workspace) = self.workspace() else {
11211 return;
11212 };
11213 let fs = workspace.read(cx).app_state().fs.clone();
11214 let current_show = TabBarSettings::get_global(cx).show;
11215 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11216 setting.show = Some(!current_show);
11217 });
11218 }
11219
11220 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11221 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11222 self.buffer
11223 .read(cx)
11224 .settings_at(0, cx)
11225 .indent_guides
11226 .enabled
11227 });
11228 self.show_indent_guides = Some(!currently_enabled);
11229 cx.notify();
11230 }
11231
11232 fn should_show_indent_guides(&self) -> Option<bool> {
11233 self.show_indent_guides
11234 }
11235
11236 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11237 let mut editor_settings = EditorSettings::get_global(cx).clone();
11238 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11239 EditorSettings::override_global(editor_settings, cx);
11240 }
11241
11242 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11243 self.use_relative_line_numbers
11244 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11245 }
11246
11247 pub fn toggle_relative_line_numbers(
11248 &mut self,
11249 _: &ToggleRelativeLineNumbers,
11250 cx: &mut ViewContext<Self>,
11251 ) {
11252 let is_relative = self.should_use_relative_line_numbers(cx);
11253 self.set_relative_line_number(Some(!is_relative), cx)
11254 }
11255
11256 pub fn set_relative_line_number(
11257 &mut self,
11258 is_relative: Option<bool>,
11259 cx: &mut ViewContext<Self>,
11260 ) {
11261 self.use_relative_line_numbers = is_relative;
11262 cx.notify();
11263 }
11264
11265 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11266 self.show_gutter = show_gutter;
11267 cx.notify();
11268 }
11269
11270 pub fn set_show_scrollbars(&mut self, show_scrollbars: bool, cx: &mut ViewContext<Self>) {
11271 self.show_scrollbars = show_scrollbars;
11272 cx.notify();
11273 }
11274
11275 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11276 self.show_line_numbers = Some(show_line_numbers);
11277 cx.notify();
11278 }
11279
11280 pub fn set_show_git_diff_gutter(
11281 &mut self,
11282 show_git_diff_gutter: bool,
11283 cx: &mut ViewContext<Self>,
11284 ) {
11285 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11286 cx.notify();
11287 }
11288
11289 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11290 self.show_code_actions = Some(show_code_actions);
11291 cx.notify();
11292 }
11293
11294 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11295 self.show_runnables = Some(show_runnables);
11296 cx.notify();
11297 }
11298
11299 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11300 if self.display_map.read(cx).masked != masked {
11301 self.display_map.update(cx, |map, _| map.masked = masked);
11302 }
11303 cx.notify()
11304 }
11305
11306 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11307 self.show_wrap_guides = Some(show_wrap_guides);
11308 cx.notify();
11309 }
11310
11311 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11312 self.show_indent_guides = Some(show_indent_guides);
11313 cx.notify();
11314 }
11315
11316 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11317 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11318 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11319 if let Some(dir) = file.abs_path(cx).parent() {
11320 return Some(dir.to_owned());
11321 }
11322 }
11323
11324 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11325 return Some(project_path.path.to_path_buf());
11326 }
11327 }
11328
11329 None
11330 }
11331
11332 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11333 self.active_excerpt(cx)?
11334 .1
11335 .read(cx)
11336 .file()
11337 .and_then(|f| f.as_local())
11338 }
11339
11340 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11341 if let Some(target) = self.target_file(cx) {
11342 cx.reveal_path(&target.abs_path(cx));
11343 }
11344 }
11345
11346 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11347 if let Some(file) = self.target_file(cx) {
11348 if let Some(path) = file.abs_path(cx).to_str() {
11349 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11350 }
11351 }
11352 }
11353
11354 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11355 if let Some(file) = self.target_file(cx) {
11356 if let Some(path) = file.path().to_str() {
11357 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11358 }
11359 }
11360 }
11361
11362 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11363 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11364
11365 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11366 self.start_git_blame(true, cx);
11367 }
11368
11369 cx.notify();
11370 }
11371
11372 pub fn toggle_git_blame_inline(
11373 &mut self,
11374 _: &ToggleGitBlameInline,
11375 cx: &mut ViewContext<Self>,
11376 ) {
11377 self.toggle_git_blame_inline_internal(true, cx);
11378 cx.notify();
11379 }
11380
11381 pub fn git_blame_inline_enabled(&self) -> bool {
11382 self.git_blame_inline_enabled
11383 }
11384
11385 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11386 self.show_selection_menu = self
11387 .show_selection_menu
11388 .map(|show_selections_menu| !show_selections_menu)
11389 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11390
11391 cx.notify();
11392 }
11393
11394 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11395 self.show_selection_menu
11396 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11397 }
11398
11399 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11400 if let Some(project) = self.project.as_ref() {
11401 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11402 return;
11403 };
11404
11405 if buffer.read(cx).file().is_none() {
11406 return;
11407 }
11408
11409 let focused = self.focus_handle(cx).contains_focused(cx);
11410
11411 let project = project.clone();
11412 let blame =
11413 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11414 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11415 self.blame = Some(blame);
11416 }
11417 }
11418
11419 fn toggle_git_blame_inline_internal(
11420 &mut self,
11421 user_triggered: bool,
11422 cx: &mut ViewContext<Self>,
11423 ) {
11424 if self.git_blame_inline_enabled {
11425 self.git_blame_inline_enabled = false;
11426 self.show_git_blame_inline = false;
11427 self.show_git_blame_inline_delay_task.take();
11428 } else {
11429 self.git_blame_inline_enabled = true;
11430 self.start_git_blame_inline(user_triggered, cx);
11431 }
11432
11433 cx.notify();
11434 }
11435
11436 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11437 self.start_git_blame(user_triggered, cx);
11438
11439 if ProjectSettings::get_global(cx)
11440 .git
11441 .inline_blame_delay()
11442 .is_some()
11443 {
11444 self.start_inline_blame_timer(cx);
11445 } else {
11446 self.show_git_blame_inline = true
11447 }
11448 }
11449
11450 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11451 self.blame.as_ref()
11452 }
11453
11454 pub fn show_git_blame_gutter(&self) -> bool {
11455 self.show_git_blame_gutter
11456 }
11457
11458 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11459 self.show_git_blame_gutter && self.has_blame_entries(cx)
11460 }
11461
11462 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11463 self.show_git_blame_inline
11464 && self.focus_handle.is_focused(cx)
11465 && !self.newest_selection_head_on_empty_line(cx)
11466 && self.has_blame_entries(cx)
11467 }
11468
11469 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11470 self.blame()
11471 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11472 }
11473
11474 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11475 let cursor_anchor = self.selections.newest_anchor().head();
11476
11477 let snapshot = self.buffer.read(cx).snapshot(cx);
11478 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11479
11480 snapshot.line_len(buffer_row) == 0
11481 }
11482
11483 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11484 let buffer_and_selection = maybe!({
11485 let selection = self.selections.newest::<Point>(cx);
11486 let selection_range = selection.range();
11487
11488 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11489 (buffer, selection_range.start.row..selection_range.end.row)
11490 } else {
11491 let buffer_ranges = self
11492 .buffer()
11493 .read(cx)
11494 .range_to_buffer_ranges(selection_range, cx);
11495
11496 let (buffer, range, _) = if selection.reversed {
11497 buffer_ranges.first()
11498 } else {
11499 buffer_ranges.last()
11500 }?;
11501
11502 let snapshot = buffer.read(cx).snapshot();
11503 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11504 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11505 (buffer.clone(), selection)
11506 };
11507
11508 Some((buffer, selection))
11509 });
11510
11511 let Some((buffer, selection)) = buffer_and_selection else {
11512 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11513 };
11514
11515 let Some(project) = self.project.as_ref() else {
11516 return Task::ready(Err(anyhow!("editor does not have project")));
11517 };
11518
11519 project.update(cx, |project, cx| {
11520 project.get_permalink_to_line(&buffer, selection, cx)
11521 })
11522 }
11523
11524 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11525 let permalink_task = self.get_permalink_to_line(cx);
11526 let workspace = self.workspace();
11527
11528 cx.spawn(|_, mut cx| async move {
11529 match permalink_task.await {
11530 Ok(permalink) => {
11531 cx.update(|cx| {
11532 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11533 })
11534 .ok();
11535 }
11536 Err(err) => {
11537 let message = format!("Failed to copy permalink: {err}");
11538
11539 Err::<(), anyhow::Error>(err).log_err();
11540
11541 if let Some(workspace) = workspace {
11542 workspace
11543 .update(&mut cx, |workspace, cx| {
11544 struct CopyPermalinkToLine;
11545
11546 workspace.show_toast(
11547 Toast::new(
11548 NotificationId::unique::<CopyPermalinkToLine>(),
11549 message,
11550 ),
11551 cx,
11552 )
11553 })
11554 .ok();
11555 }
11556 }
11557 }
11558 })
11559 .detach();
11560 }
11561
11562 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11563 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11564 if let Some(file) = self.target_file(cx) {
11565 if let Some(path) = file.path().to_str() {
11566 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11567 }
11568 }
11569 }
11570
11571 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11572 let permalink_task = self.get_permalink_to_line(cx);
11573 let workspace = self.workspace();
11574
11575 cx.spawn(|_, mut cx| async move {
11576 match permalink_task.await {
11577 Ok(permalink) => {
11578 cx.update(|cx| {
11579 cx.open_url(permalink.as_ref());
11580 })
11581 .ok();
11582 }
11583 Err(err) => {
11584 let message = format!("Failed to open permalink: {err}");
11585
11586 Err::<(), anyhow::Error>(err).log_err();
11587
11588 if let Some(workspace) = workspace {
11589 workspace
11590 .update(&mut cx, |workspace, cx| {
11591 struct OpenPermalinkToLine;
11592
11593 workspace.show_toast(
11594 Toast::new(
11595 NotificationId::unique::<OpenPermalinkToLine>(),
11596 message,
11597 ),
11598 cx,
11599 )
11600 })
11601 .ok();
11602 }
11603 }
11604 }
11605 })
11606 .detach();
11607 }
11608
11609 pub fn insert_uuid_v4(&mut self, _: &InsertUuidV4, cx: &mut ViewContext<Self>) {
11610 self.insert_uuid(UuidVersion::V4, cx);
11611 }
11612
11613 pub fn insert_uuid_v7(&mut self, _: &InsertUuidV7, cx: &mut ViewContext<Self>) {
11614 self.insert_uuid(UuidVersion::V7, cx);
11615 }
11616
11617 fn insert_uuid(&mut self, version: UuidVersion, cx: &mut ViewContext<Self>) {
11618 self.transact(cx, |this, cx| {
11619 let edits = this
11620 .selections
11621 .all::<Point>(cx)
11622 .into_iter()
11623 .map(|selection| {
11624 let uuid = match version {
11625 UuidVersion::V4 => uuid::Uuid::new_v4(),
11626 UuidVersion::V7 => uuid::Uuid::now_v7(),
11627 };
11628
11629 (selection.range(), uuid.to_string())
11630 });
11631 this.edit(edits, cx);
11632 this.refresh_inline_completion(true, false, cx);
11633 });
11634 }
11635
11636 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11637 /// last highlight added will be used.
11638 ///
11639 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11640 pub fn highlight_rows<T: 'static>(
11641 &mut self,
11642 range: Range<Anchor>,
11643 color: Hsla,
11644 should_autoscroll: bool,
11645 cx: &mut ViewContext<Self>,
11646 ) {
11647 let snapshot = self.buffer().read(cx).snapshot(cx);
11648 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11649 let ix = row_highlights.binary_search_by(|highlight| {
11650 Ordering::Equal
11651 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11652 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11653 });
11654
11655 if let Err(mut ix) = ix {
11656 let index = post_inc(&mut self.highlight_order);
11657
11658 // If this range intersects with the preceding highlight, then merge it with
11659 // the preceding highlight. Otherwise insert a new highlight.
11660 let mut merged = false;
11661 if ix > 0 {
11662 let prev_highlight = &mut row_highlights[ix - 1];
11663 if prev_highlight
11664 .range
11665 .end
11666 .cmp(&range.start, &snapshot)
11667 .is_ge()
11668 {
11669 ix -= 1;
11670 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11671 prev_highlight.range.end = range.end;
11672 }
11673 merged = true;
11674 prev_highlight.index = index;
11675 prev_highlight.color = color;
11676 prev_highlight.should_autoscroll = should_autoscroll;
11677 }
11678 }
11679
11680 if !merged {
11681 row_highlights.insert(
11682 ix,
11683 RowHighlight {
11684 range: range.clone(),
11685 index,
11686 color,
11687 should_autoscroll,
11688 },
11689 );
11690 }
11691
11692 // If any of the following highlights intersect with this one, merge them.
11693 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11694 let highlight = &row_highlights[ix];
11695 if next_highlight
11696 .range
11697 .start
11698 .cmp(&highlight.range.end, &snapshot)
11699 .is_le()
11700 {
11701 if next_highlight
11702 .range
11703 .end
11704 .cmp(&highlight.range.end, &snapshot)
11705 .is_gt()
11706 {
11707 row_highlights[ix].range.end = next_highlight.range.end;
11708 }
11709 row_highlights.remove(ix + 1);
11710 } else {
11711 break;
11712 }
11713 }
11714 }
11715 }
11716
11717 /// Remove any highlighted row ranges of the given type that intersect the
11718 /// given ranges.
11719 pub fn remove_highlighted_rows<T: 'static>(
11720 &mut self,
11721 ranges_to_remove: Vec<Range<Anchor>>,
11722 cx: &mut ViewContext<Self>,
11723 ) {
11724 let snapshot = self.buffer().read(cx).snapshot(cx);
11725 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11726 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11727 row_highlights.retain(|highlight| {
11728 while let Some(range_to_remove) = ranges_to_remove.peek() {
11729 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11730 Ordering::Less | Ordering::Equal => {
11731 ranges_to_remove.next();
11732 }
11733 Ordering::Greater => {
11734 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11735 Ordering::Less | Ordering::Equal => {
11736 return false;
11737 }
11738 Ordering::Greater => break,
11739 }
11740 }
11741 }
11742 }
11743
11744 true
11745 })
11746 }
11747
11748 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11749 pub fn clear_row_highlights<T: 'static>(&mut self) {
11750 self.highlighted_rows.remove(&TypeId::of::<T>());
11751 }
11752
11753 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11754 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11755 self.highlighted_rows
11756 .get(&TypeId::of::<T>())
11757 .map_or(&[] as &[_], |vec| vec.as_slice())
11758 .iter()
11759 .map(|highlight| (highlight.range.clone(), highlight.color))
11760 }
11761
11762 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11763 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11764 /// Allows to ignore certain kinds of highlights.
11765 pub fn highlighted_display_rows(
11766 &mut self,
11767 cx: &mut WindowContext,
11768 ) -> BTreeMap<DisplayRow, Hsla> {
11769 let snapshot = self.snapshot(cx);
11770 let mut used_highlight_orders = HashMap::default();
11771 self.highlighted_rows
11772 .iter()
11773 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11774 .fold(
11775 BTreeMap::<DisplayRow, Hsla>::new(),
11776 |mut unique_rows, highlight| {
11777 let start = highlight.range.start.to_display_point(&snapshot);
11778 let end = highlight.range.end.to_display_point(&snapshot);
11779 let start_row = start.row().0;
11780 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11781 && end.column() == 0
11782 {
11783 end.row().0.saturating_sub(1)
11784 } else {
11785 end.row().0
11786 };
11787 for row in start_row..=end_row {
11788 let used_index =
11789 used_highlight_orders.entry(row).or_insert(highlight.index);
11790 if highlight.index >= *used_index {
11791 *used_index = highlight.index;
11792 unique_rows.insert(DisplayRow(row), highlight.color);
11793 }
11794 }
11795 unique_rows
11796 },
11797 )
11798 }
11799
11800 pub fn highlighted_display_row_for_autoscroll(
11801 &self,
11802 snapshot: &DisplaySnapshot,
11803 ) -> Option<DisplayRow> {
11804 self.highlighted_rows
11805 .values()
11806 .flat_map(|highlighted_rows| highlighted_rows.iter())
11807 .filter_map(|highlight| {
11808 if highlight.should_autoscroll {
11809 Some(highlight.range.start.to_display_point(snapshot).row())
11810 } else {
11811 None
11812 }
11813 })
11814 .min()
11815 }
11816
11817 pub fn set_search_within_ranges(
11818 &mut self,
11819 ranges: &[Range<Anchor>],
11820 cx: &mut ViewContext<Self>,
11821 ) {
11822 self.highlight_background::<SearchWithinRange>(
11823 ranges,
11824 |colors| colors.editor_document_highlight_read_background,
11825 cx,
11826 )
11827 }
11828
11829 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11830 self.breadcrumb_header = Some(new_header);
11831 }
11832
11833 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11834 self.clear_background_highlights::<SearchWithinRange>(cx);
11835 }
11836
11837 pub fn highlight_background<T: 'static>(
11838 &mut self,
11839 ranges: &[Range<Anchor>],
11840 color_fetcher: fn(&ThemeColors) -> Hsla,
11841 cx: &mut ViewContext<Self>,
11842 ) {
11843 self.background_highlights
11844 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11845 self.scrollbar_marker_state.dirty = true;
11846 cx.notify();
11847 }
11848
11849 pub fn clear_background_highlights<T: 'static>(
11850 &mut self,
11851 cx: &mut ViewContext<Self>,
11852 ) -> Option<BackgroundHighlight> {
11853 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11854 if !text_highlights.1.is_empty() {
11855 self.scrollbar_marker_state.dirty = true;
11856 cx.notify();
11857 }
11858 Some(text_highlights)
11859 }
11860
11861 pub fn highlight_gutter<T: 'static>(
11862 &mut self,
11863 ranges: &[Range<Anchor>],
11864 color_fetcher: fn(&AppContext) -> Hsla,
11865 cx: &mut ViewContext<Self>,
11866 ) {
11867 self.gutter_highlights
11868 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11869 cx.notify();
11870 }
11871
11872 pub fn clear_gutter_highlights<T: 'static>(
11873 &mut self,
11874 cx: &mut ViewContext<Self>,
11875 ) -> Option<GutterHighlight> {
11876 cx.notify();
11877 self.gutter_highlights.remove(&TypeId::of::<T>())
11878 }
11879
11880 #[cfg(feature = "test-support")]
11881 pub fn all_text_background_highlights(
11882 &mut self,
11883 cx: &mut ViewContext<Self>,
11884 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11885 let snapshot = self.snapshot(cx);
11886 let buffer = &snapshot.buffer_snapshot;
11887 let start = buffer.anchor_before(0);
11888 let end = buffer.anchor_after(buffer.len());
11889 let theme = cx.theme().colors();
11890 self.background_highlights_in_range(start..end, &snapshot, theme)
11891 }
11892
11893 #[cfg(feature = "test-support")]
11894 pub fn search_background_highlights(
11895 &mut self,
11896 cx: &mut ViewContext<Self>,
11897 ) -> Vec<Range<Point>> {
11898 let snapshot = self.buffer().read(cx).snapshot(cx);
11899
11900 let highlights = self
11901 .background_highlights
11902 .get(&TypeId::of::<items::BufferSearchHighlights>());
11903
11904 if let Some((_color, ranges)) = highlights {
11905 ranges
11906 .iter()
11907 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11908 .collect_vec()
11909 } else {
11910 vec![]
11911 }
11912 }
11913
11914 fn document_highlights_for_position<'a>(
11915 &'a self,
11916 position: Anchor,
11917 buffer: &'a MultiBufferSnapshot,
11918 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11919 let read_highlights = self
11920 .background_highlights
11921 .get(&TypeId::of::<DocumentHighlightRead>())
11922 .map(|h| &h.1);
11923 let write_highlights = self
11924 .background_highlights
11925 .get(&TypeId::of::<DocumentHighlightWrite>())
11926 .map(|h| &h.1);
11927 let left_position = position.bias_left(buffer);
11928 let right_position = position.bias_right(buffer);
11929 read_highlights
11930 .into_iter()
11931 .chain(write_highlights)
11932 .flat_map(move |ranges| {
11933 let start_ix = match ranges.binary_search_by(|probe| {
11934 let cmp = probe.end.cmp(&left_position, buffer);
11935 if cmp.is_ge() {
11936 Ordering::Greater
11937 } else {
11938 Ordering::Less
11939 }
11940 }) {
11941 Ok(i) | Err(i) => i,
11942 };
11943
11944 ranges[start_ix..]
11945 .iter()
11946 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11947 })
11948 }
11949
11950 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11951 self.background_highlights
11952 .get(&TypeId::of::<T>())
11953 .map_or(false, |(_, highlights)| !highlights.is_empty())
11954 }
11955
11956 pub fn background_highlights_in_range(
11957 &self,
11958 search_range: Range<Anchor>,
11959 display_snapshot: &DisplaySnapshot,
11960 theme: &ThemeColors,
11961 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11962 let mut results = Vec::new();
11963 for (color_fetcher, ranges) in self.background_highlights.values() {
11964 let color = color_fetcher(theme);
11965 let start_ix = match ranges.binary_search_by(|probe| {
11966 let cmp = probe
11967 .end
11968 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11969 if cmp.is_gt() {
11970 Ordering::Greater
11971 } else {
11972 Ordering::Less
11973 }
11974 }) {
11975 Ok(i) | Err(i) => i,
11976 };
11977 for range in &ranges[start_ix..] {
11978 if range
11979 .start
11980 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11981 .is_ge()
11982 {
11983 break;
11984 }
11985
11986 let start = range.start.to_display_point(display_snapshot);
11987 let end = range.end.to_display_point(display_snapshot);
11988 results.push((start..end, color))
11989 }
11990 }
11991 results
11992 }
11993
11994 pub fn background_highlight_row_ranges<T: 'static>(
11995 &self,
11996 search_range: Range<Anchor>,
11997 display_snapshot: &DisplaySnapshot,
11998 count: usize,
11999 ) -> Vec<RangeInclusive<DisplayPoint>> {
12000 let mut results = Vec::new();
12001 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12002 return vec![];
12003 };
12004
12005 let start_ix = match ranges.binary_search_by(|probe| {
12006 let cmp = probe
12007 .end
12008 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12009 if cmp.is_gt() {
12010 Ordering::Greater
12011 } else {
12012 Ordering::Less
12013 }
12014 }) {
12015 Ok(i) | Err(i) => i,
12016 };
12017 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12018 if let (Some(start_display), Some(end_display)) = (start, end) {
12019 results.push(
12020 start_display.to_display_point(display_snapshot)
12021 ..=end_display.to_display_point(display_snapshot),
12022 );
12023 }
12024 };
12025 let mut start_row: Option<Point> = None;
12026 let mut end_row: Option<Point> = None;
12027 if ranges.len() > count {
12028 return Vec::new();
12029 }
12030 for range in &ranges[start_ix..] {
12031 if range
12032 .start
12033 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12034 .is_ge()
12035 {
12036 break;
12037 }
12038 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12039 if let Some(current_row) = &end_row {
12040 if end.row == current_row.row {
12041 continue;
12042 }
12043 }
12044 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12045 if start_row.is_none() {
12046 assert_eq!(end_row, None);
12047 start_row = Some(start);
12048 end_row = Some(end);
12049 continue;
12050 }
12051 if let Some(current_end) = end_row.as_mut() {
12052 if start.row > current_end.row + 1 {
12053 push_region(start_row, end_row);
12054 start_row = Some(start);
12055 end_row = Some(end);
12056 } else {
12057 // Merge two hunks.
12058 *current_end = end;
12059 }
12060 } else {
12061 unreachable!();
12062 }
12063 }
12064 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12065 push_region(start_row, end_row);
12066 results
12067 }
12068
12069 pub fn gutter_highlights_in_range(
12070 &self,
12071 search_range: Range<Anchor>,
12072 display_snapshot: &DisplaySnapshot,
12073 cx: &AppContext,
12074 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12075 let mut results = Vec::new();
12076 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12077 let color = color_fetcher(cx);
12078 let start_ix = match ranges.binary_search_by(|probe| {
12079 let cmp = probe
12080 .end
12081 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12082 if cmp.is_gt() {
12083 Ordering::Greater
12084 } else {
12085 Ordering::Less
12086 }
12087 }) {
12088 Ok(i) | Err(i) => i,
12089 };
12090 for range in &ranges[start_ix..] {
12091 if range
12092 .start
12093 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12094 .is_ge()
12095 {
12096 break;
12097 }
12098
12099 let start = range.start.to_display_point(display_snapshot);
12100 let end = range.end.to_display_point(display_snapshot);
12101 results.push((start..end, color))
12102 }
12103 }
12104 results
12105 }
12106
12107 /// Get the text ranges corresponding to the redaction query
12108 pub fn redacted_ranges(
12109 &self,
12110 search_range: Range<Anchor>,
12111 display_snapshot: &DisplaySnapshot,
12112 cx: &WindowContext,
12113 ) -> Vec<Range<DisplayPoint>> {
12114 display_snapshot
12115 .buffer_snapshot
12116 .redacted_ranges(search_range, |file| {
12117 if let Some(file) = file {
12118 file.is_private()
12119 && EditorSettings::get(
12120 Some(SettingsLocation {
12121 worktree_id: file.worktree_id(cx),
12122 path: file.path().as_ref(),
12123 }),
12124 cx,
12125 )
12126 .redact_private_values
12127 } else {
12128 false
12129 }
12130 })
12131 .map(|range| {
12132 range.start.to_display_point(display_snapshot)
12133 ..range.end.to_display_point(display_snapshot)
12134 })
12135 .collect()
12136 }
12137
12138 pub fn highlight_text<T: 'static>(
12139 &mut self,
12140 ranges: Vec<Range<Anchor>>,
12141 style: HighlightStyle,
12142 cx: &mut ViewContext<Self>,
12143 ) {
12144 self.display_map.update(cx, |map, _| {
12145 map.highlight_text(TypeId::of::<T>(), ranges, style)
12146 });
12147 cx.notify();
12148 }
12149
12150 pub(crate) fn highlight_inlays<T: 'static>(
12151 &mut self,
12152 highlights: Vec<InlayHighlight>,
12153 style: HighlightStyle,
12154 cx: &mut ViewContext<Self>,
12155 ) {
12156 self.display_map.update(cx, |map, _| {
12157 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12158 });
12159 cx.notify();
12160 }
12161
12162 pub fn text_highlights<'a, T: 'static>(
12163 &'a self,
12164 cx: &'a AppContext,
12165 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12166 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12167 }
12168
12169 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12170 let cleared = self
12171 .display_map
12172 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12173 if cleared {
12174 cx.notify();
12175 }
12176 }
12177
12178 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12179 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12180 && self.focus_handle.is_focused(cx)
12181 }
12182
12183 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12184 self.show_cursor_when_unfocused = is_enabled;
12185 cx.notify();
12186 }
12187
12188 pub fn lsp_store(&self, cx: &AppContext) -> Option<Model<LspStore>> {
12189 self.project
12190 .as_ref()
12191 .map(|project| project.read(cx).lsp_store())
12192 }
12193
12194 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12195 cx.notify();
12196 }
12197
12198 fn on_buffer_event(
12199 &mut self,
12200 multibuffer: Model<MultiBuffer>,
12201 event: &multi_buffer::Event,
12202 cx: &mut ViewContext<Self>,
12203 ) {
12204 match event {
12205 multi_buffer::Event::Edited {
12206 singleton_buffer_edited,
12207 edited_buffer: buffer_edited,
12208 } => {
12209 self.scrollbar_marker_state.dirty = true;
12210 self.active_indent_guides_state.dirty = true;
12211 self.refresh_active_diagnostics(cx);
12212 self.refresh_code_actions(cx);
12213 if self.has_active_inline_completion() {
12214 self.update_visible_inline_completion(cx);
12215 }
12216 if let Some(buffer) = buffer_edited {
12217 let buffer_id = buffer.read(cx).remote_id();
12218 if !self.registered_buffers.contains_key(&buffer_id) {
12219 if let Some(lsp_store) = self.lsp_store(cx) {
12220 lsp_store.update(cx, |lsp_store, cx| {
12221 self.registered_buffers.insert(
12222 buffer_id,
12223 lsp_store.register_buffer_with_language_servers(&buffer, cx),
12224 );
12225 })
12226 }
12227 }
12228 }
12229 cx.emit(EditorEvent::BufferEdited);
12230 cx.emit(SearchEvent::MatchesInvalidated);
12231 if *singleton_buffer_edited {
12232 if let Some(project) = &self.project {
12233 let project = project.read(cx);
12234 #[allow(clippy::mutable_key_type)]
12235 let languages_affected = multibuffer
12236 .read(cx)
12237 .all_buffers()
12238 .into_iter()
12239 .filter_map(|buffer| {
12240 let buffer = buffer.read(cx);
12241 let language = buffer.language()?;
12242 if project.is_local()
12243 && project
12244 .language_servers_for_local_buffer(buffer, cx)
12245 .count()
12246 == 0
12247 {
12248 None
12249 } else {
12250 Some(language)
12251 }
12252 })
12253 .cloned()
12254 .collect::<HashSet<_>>();
12255 if !languages_affected.is_empty() {
12256 self.refresh_inlay_hints(
12257 InlayHintRefreshReason::BufferEdited(languages_affected),
12258 cx,
12259 );
12260 }
12261 }
12262 }
12263
12264 let Some(project) = &self.project else { return };
12265 let (telemetry, is_via_ssh) = {
12266 let project = project.read(cx);
12267 let telemetry = project.client().telemetry().clone();
12268 let is_via_ssh = project.is_via_ssh();
12269 (telemetry, is_via_ssh)
12270 };
12271 refresh_linked_ranges(self, cx);
12272 telemetry.log_edit_event("editor", is_via_ssh);
12273 }
12274 multi_buffer::Event::ExcerptsAdded {
12275 buffer,
12276 predecessor,
12277 excerpts,
12278 } => {
12279 self.tasks_update_task = Some(self.refresh_runnables(cx));
12280 let buffer_id = buffer.read(cx).remote_id();
12281 if !self.diff_map.diff_bases.contains_key(&buffer_id) {
12282 if let Some(project) = &self.project {
12283 get_unstaged_changes_for_buffers(project, [buffer.clone()], cx);
12284 }
12285 }
12286 cx.emit(EditorEvent::ExcerptsAdded {
12287 buffer: buffer.clone(),
12288 predecessor: *predecessor,
12289 excerpts: excerpts.clone(),
12290 });
12291 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12292 }
12293 multi_buffer::Event::ExcerptsRemoved { ids } => {
12294 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12295 let buffer = self.buffer.read(cx);
12296 self.registered_buffers
12297 .retain(|buffer_id, _| buffer.buffer(*buffer_id).is_some());
12298 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12299 }
12300 multi_buffer::Event::ExcerptsEdited { ids } => {
12301 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12302 }
12303 multi_buffer::Event::ExcerptsExpanded { ids } => {
12304 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12305 }
12306 multi_buffer::Event::Reparsed(buffer_id) => {
12307 self.tasks_update_task = Some(self.refresh_runnables(cx));
12308
12309 cx.emit(EditorEvent::Reparsed(*buffer_id));
12310 }
12311 multi_buffer::Event::LanguageChanged(buffer_id) => {
12312 linked_editing_ranges::refresh_linked_ranges(self, cx);
12313 cx.emit(EditorEvent::Reparsed(*buffer_id));
12314 cx.notify();
12315 }
12316 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12317 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12318 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12319 cx.emit(EditorEvent::TitleChanged)
12320 }
12321 // multi_buffer::Event::DiffBaseChanged => {
12322 // self.scrollbar_marker_state.dirty = true;
12323 // cx.emit(EditorEvent::DiffBaseChanged);
12324 // cx.notify();
12325 // }
12326 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12327 multi_buffer::Event::DiagnosticsUpdated => {
12328 self.refresh_active_diagnostics(cx);
12329 self.scrollbar_marker_state.dirty = true;
12330 cx.notify();
12331 }
12332 _ => {}
12333 };
12334 }
12335
12336 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12337 cx.notify();
12338 }
12339
12340 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12341 self.tasks_update_task = Some(self.refresh_runnables(cx));
12342 self.refresh_inline_completion(true, false, cx);
12343 self.refresh_inlay_hints(
12344 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12345 self.selections.newest_anchor().head(),
12346 &self.buffer.read(cx).snapshot(cx),
12347 cx,
12348 )),
12349 cx,
12350 );
12351
12352 let old_cursor_shape = self.cursor_shape;
12353
12354 {
12355 let editor_settings = EditorSettings::get_global(cx);
12356 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12357 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12358 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12359 }
12360
12361 if old_cursor_shape != self.cursor_shape {
12362 cx.emit(EditorEvent::CursorShapeChanged);
12363 }
12364
12365 let project_settings = ProjectSettings::get_global(cx);
12366 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12367
12368 if self.mode == EditorMode::Full {
12369 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12370 if self.git_blame_inline_enabled != inline_blame_enabled {
12371 self.toggle_git_blame_inline_internal(false, cx);
12372 }
12373 }
12374
12375 cx.notify();
12376 }
12377
12378 pub fn set_searchable(&mut self, searchable: bool) {
12379 self.searchable = searchable;
12380 }
12381
12382 pub fn searchable(&self) -> bool {
12383 self.searchable
12384 }
12385
12386 fn open_proposed_changes_editor(
12387 &mut self,
12388 _: &OpenProposedChangesEditor,
12389 cx: &mut ViewContext<Self>,
12390 ) {
12391 let Some(workspace) = self.workspace() else {
12392 cx.propagate();
12393 return;
12394 };
12395
12396 let selections = self.selections.all::<usize>(cx);
12397 let buffer = self.buffer.read(cx);
12398 let mut new_selections_by_buffer = HashMap::default();
12399 for selection in selections {
12400 for (buffer, range, _) in
12401 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12402 {
12403 let mut range = range.to_point(buffer.read(cx));
12404 range.start.column = 0;
12405 range.end.column = buffer.read(cx).line_len(range.end.row);
12406 new_selections_by_buffer
12407 .entry(buffer)
12408 .or_insert(Vec::new())
12409 .push(range)
12410 }
12411 }
12412
12413 let proposed_changes_buffers = new_selections_by_buffer
12414 .into_iter()
12415 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12416 .collect::<Vec<_>>();
12417 let proposed_changes_editor = cx.new_view(|cx| {
12418 ProposedChangesEditor::new(
12419 "Proposed changes",
12420 proposed_changes_buffers,
12421 self.project.clone(),
12422 cx,
12423 )
12424 });
12425
12426 cx.window_context().defer(move |cx| {
12427 workspace.update(cx, |workspace, cx| {
12428 workspace.active_pane().update(cx, |pane, cx| {
12429 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12430 });
12431 });
12432 });
12433 }
12434
12435 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12436 self.open_excerpts_common(None, true, cx)
12437 }
12438
12439 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12440 self.open_excerpts_common(None, false, cx)
12441 }
12442
12443 fn open_excerpts_common(
12444 &mut self,
12445 jump_data: Option<JumpData>,
12446 split: bool,
12447 cx: &mut ViewContext<Self>,
12448 ) {
12449 let Some(workspace) = self.workspace() else {
12450 cx.propagate();
12451 return;
12452 };
12453
12454 if self.buffer.read(cx).is_singleton() {
12455 cx.propagate();
12456 return;
12457 }
12458
12459 let mut new_selections_by_buffer = HashMap::default();
12460 match &jump_data {
12461 Some(jump_data) => {
12462 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12463 if let Some(buffer) = multi_buffer_snapshot
12464 .buffer_id_for_excerpt(jump_data.excerpt_id)
12465 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12466 {
12467 let buffer_snapshot = buffer.read(cx).snapshot();
12468 let jump_to_point = if buffer_snapshot.can_resolve(&jump_data.anchor) {
12469 language::ToPoint::to_point(&jump_data.anchor, &buffer_snapshot)
12470 } else {
12471 buffer_snapshot.clip_point(jump_data.position, Bias::Left)
12472 };
12473 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12474 new_selections_by_buffer.insert(
12475 buffer,
12476 (
12477 vec![jump_to_offset..jump_to_offset],
12478 Some(jump_data.line_offset_from_top),
12479 ),
12480 );
12481 }
12482 }
12483 None => {
12484 let selections = self.selections.all::<usize>(cx);
12485 let buffer = self.buffer.read(cx);
12486 for selection in selections {
12487 for (mut buffer_handle, mut range, _) in
12488 buffer.range_to_buffer_ranges(selection.range(), cx)
12489 {
12490 // When editing branch buffers, jump to the corresponding location
12491 // in their base buffer.
12492 let buffer = buffer_handle.read(cx);
12493 if let Some(base_buffer) = buffer.base_buffer() {
12494 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12495 buffer_handle = base_buffer;
12496 }
12497
12498 if selection.reversed {
12499 mem::swap(&mut range.start, &mut range.end);
12500 }
12501 new_selections_by_buffer
12502 .entry(buffer_handle)
12503 .or_insert((Vec::new(), None))
12504 .0
12505 .push(range)
12506 }
12507 }
12508 }
12509 }
12510
12511 if new_selections_by_buffer.is_empty() {
12512 return;
12513 }
12514
12515 // We defer the pane interaction because we ourselves are a workspace item
12516 // and activating a new item causes the pane to call a method on us reentrantly,
12517 // which panics if we're on the stack.
12518 cx.window_context().defer(move |cx| {
12519 workspace.update(cx, |workspace, cx| {
12520 let pane = if split {
12521 workspace.adjacent_pane(cx)
12522 } else {
12523 workspace.active_pane().clone()
12524 };
12525
12526 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12527 let editor = buffer
12528 .read(cx)
12529 .file()
12530 .is_none()
12531 .then(|| {
12532 // Handle file-less buffers separately: those are not really the project items, so won't have a paroject path or entity id,
12533 // so `workspace.open_project_item` will never find them, always opening a new editor.
12534 // Instead, we try to activate the existing editor in the pane first.
12535 let (editor, pane_item_index) =
12536 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12537 let editor = item.downcast::<Editor>()?;
12538 let singleton_buffer =
12539 editor.read(cx).buffer().read(cx).as_singleton()?;
12540 if singleton_buffer == buffer {
12541 Some((editor, i))
12542 } else {
12543 None
12544 }
12545 })?;
12546 pane.update(cx, |pane, cx| {
12547 pane.activate_item(pane_item_index, true, true, cx)
12548 });
12549 Some(editor)
12550 })
12551 .flatten()
12552 .unwrap_or_else(|| {
12553 workspace.open_project_item::<Self>(
12554 pane.clone(),
12555 buffer,
12556 true,
12557 true,
12558 cx,
12559 )
12560 });
12561
12562 editor.update(cx, |editor, cx| {
12563 let autoscroll = match scroll_offset {
12564 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12565 None => Autoscroll::newest(),
12566 };
12567 let nav_history = editor.nav_history.take();
12568 editor.change_selections(Some(autoscroll), cx, |s| {
12569 s.select_ranges(ranges);
12570 });
12571 editor.nav_history = nav_history;
12572 });
12573 }
12574 })
12575 });
12576 }
12577
12578 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12579 let snapshot = self.buffer.read(cx).read(cx);
12580 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12581 Some(
12582 ranges
12583 .iter()
12584 .map(move |range| {
12585 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12586 })
12587 .collect(),
12588 )
12589 }
12590
12591 fn selection_replacement_ranges(
12592 &self,
12593 range: Range<OffsetUtf16>,
12594 cx: &mut AppContext,
12595 ) -> Vec<Range<OffsetUtf16>> {
12596 let selections = self.selections.all::<OffsetUtf16>(cx);
12597 let newest_selection = selections
12598 .iter()
12599 .max_by_key(|selection| selection.id)
12600 .unwrap();
12601 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12602 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12603 let snapshot = self.buffer.read(cx).read(cx);
12604 selections
12605 .into_iter()
12606 .map(|mut selection| {
12607 selection.start.0 =
12608 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12609 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12610 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12611 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12612 })
12613 .collect()
12614 }
12615
12616 fn report_editor_event(
12617 &self,
12618 event_type: &'static str,
12619 file_extension: Option<String>,
12620 cx: &AppContext,
12621 ) {
12622 if cfg!(any(test, feature = "test-support")) {
12623 return;
12624 }
12625
12626 let Some(project) = &self.project else { return };
12627
12628 // If None, we are in a file without an extension
12629 let file = self
12630 .buffer
12631 .read(cx)
12632 .as_singleton()
12633 .and_then(|b| b.read(cx).file());
12634 let file_extension = file_extension.or(file
12635 .as_ref()
12636 .and_then(|file| Path::new(file.file_name(cx)).extension())
12637 .and_then(|e| e.to_str())
12638 .map(|a| a.to_string()));
12639
12640 let vim_mode = cx
12641 .global::<SettingsStore>()
12642 .raw_user_settings()
12643 .get("vim_mode")
12644 == Some(&serde_json::Value::Bool(true));
12645
12646 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12647 == language::language_settings::InlineCompletionProvider::Copilot;
12648 let copilot_enabled_for_language = self
12649 .buffer
12650 .read(cx)
12651 .settings_at(0, cx)
12652 .show_inline_completions;
12653
12654 let project = project.read(cx);
12655 telemetry::event!(
12656 event_type,
12657 file_extension,
12658 vim_mode,
12659 copilot_enabled,
12660 copilot_enabled_for_language,
12661 is_via_ssh = project.is_via_ssh(),
12662 );
12663 }
12664
12665 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12666 /// with each line being an array of {text, highlight} objects.
12667 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12668 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12669 return;
12670 };
12671
12672 #[derive(Serialize)]
12673 struct Chunk<'a> {
12674 text: String,
12675 highlight: Option<&'a str>,
12676 }
12677
12678 let snapshot = buffer.read(cx).snapshot();
12679 let range = self
12680 .selected_text_range(false, cx)
12681 .and_then(|selection| {
12682 if selection.range.is_empty() {
12683 None
12684 } else {
12685 Some(selection.range)
12686 }
12687 })
12688 .unwrap_or_else(|| 0..snapshot.len());
12689
12690 let chunks = snapshot.chunks(range, true);
12691 let mut lines = Vec::new();
12692 let mut line: VecDeque<Chunk> = VecDeque::new();
12693
12694 let Some(style) = self.style.as_ref() else {
12695 return;
12696 };
12697
12698 for chunk in chunks {
12699 let highlight = chunk
12700 .syntax_highlight_id
12701 .and_then(|id| id.name(&style.syntax));
12702 let mut chunk_lines = chunk.text.split('\n').peekable();
12703 while let Some(text) = chunk_lines.next() {
12704 let mut merged_with_last_token = false;
12705 if let Some(last_token) = line.back_mut() {
12706 if last_token.highlight == highlight {
12707 last_token.text.push_str(text);
12708 merged_with_last_token = true;
12709 }
12710 }
12711
12712 if !merged_with_last_token {
12713 line.push_back(Chunk {
12714 text: text.into(),
12715 highlight,
12716 });
12717 }
12718
12719 if chunk_lines.peek().is_some() {
12720 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12721 line.pop_front();
12722 }
12723 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12724 line.pop_back();
12725 }
12726
12727 lines.push(mem::take(&mut line));
12728 }
12729 }
12730 }
12731
12732 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12733 return;
12734 };
12735 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12736 }
12737
12738 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
12739 self.request_autoscroll(Autoscroll::newest(), cx);
12740 let position = self.selections.newest_display(cx).start;
12741 mouse_context_menu::deploy_context_menu(self, None, position, cx);
12742 }
12743
12744 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12745 &self.inlay_hint_cache
12746 }
12747
12748 pub fn replay_insert_event(
12749 &mut self,
12750 text: &str,
12751 relative_utf16_range: Option<Range<isize>>,
12752 cx: &mut ViewContext<Self>,
12753 ) {
12754 if !self.input_enabled {
12755 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12756 return;
12757 }
12758 if let Some(relative_utf16_range) = relative_utf16_range {
12759 let selections = self.selections.all::<OffsetUtf16>(cx);
12760 self.change_selections(None, cx, |s| {
12761 let new_ranges = selections.into_iter().map(|range| {
12762 let start = OffsetUtf16(
12763 range
12764 .head()
12765 .0
12766 .saturating_add_signed(relative_utf16_range.start),
12767 );
12768 let end = OffsetUtf16(
12769 range
12770 .head()
12771 .0
12772 .saturating_add_signed(relative_utf16_range.end),
12773 );
12774 start..end
12775 });
12776 s.select_ranges(new_ranges);
12777 });
12778 }
12779
12780 self.handle_input(text, cx);
12781 }
12782
12783 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12784 let Some(provider) = self.semantics_provider.as_ref() else {
12785 return false;
12786 };
12787
12788 let mut supports = false;
12789 self.buffer().read(cx).for_each_buffer(|buffer| {
12790 supports |= provider.supports_inlay_hints(buffer, cx);
12791 });
12792 supports
12793 }
12794
12795 pub fn focus(&self, cx: &mut WindowContext) {
12796 cx.focus(&self.focus_handle)
12797 }
12798
12799 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12800 self.focus_handle.is_focused(cx)
12801 }
12802
12803 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12804 cx.emit(EditorEvent::Focused);
12805
12806 if let Some(descendant) = self
12807 .last_focused_descendant
12808 .take()
12809 .and_then(|descendant| descendant.upgrade())
12810 {
12811 cx.focus(&descendant);
12812 } else {
12813 if let Some(blame) = self.blame.as_ref() {
12814 blame.update(cx, GitBlame::focus)
12815 }
12816
12817 self.blink_manager.update(cx, BlinkManager::enable);
12818 self.show_cursor_names(cx);
12819 self.buffer.update(cx, |buffer, cx| {
12820 buffer.finalize_last_transaction(cx);
12821 if self.leader_peer_id.is_none() {
12822 buffer.set_active_selections(
12823 &self.selections.disjoint_anchors(),
12824 self.selections.line_mode,
12825 self.cursor_shape,
12826 cx,
12827 );
12828 }
12829 });
12830 }
12831 }
12832
12833 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12834 cx.emit(EditorEvent::FocusedIn)
12835 }
12836
12837 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12838 if event.blurred != self.focus_handle {
12839 self.last_focused_descendant = Some(event.blurred);
12840 }
12841 }
12842
12843 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12844 self.blink_manager.update(cx, BlinkManager::disable);
12845 self.buffer
12846 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12847
12848 if let Some(blame) = self.blame.as_ref() {
12849 blame.update(cx, GitBlame::blur)
12850 }
12851 if !self.hover_state.focused(cx) {
12852 hide_hover(self, cx);
12853 }
12854
12855 self.hide_context_menu(cx);
12856 cx.emit(EditorEvent::Blurred);
12857 cx.notify();
12858 }
12859
12860 pub fn register_action<A: Action>(
12861 &mut self,
12862 listener: impl Fn(&A, &mut WindowContext) + 'static,
12863 ) -> Subscription {
12864 let id = self.next_editor_action_id.post_inc();
12865 let listener = Arc::new(listener);
12866 self.editor_actions.borrow_mut().insert(
12867 id,
12868 Box::new(move |cx| {
12869 let cx = cx.window_context();
12870 let listener = listener.clone();
12871 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12872 let action = action.downcast_ref().unwrap();
12873 if phase == DispatchPhase::Bubble {
12874 listener(action, cx)
12875 }
12876 })
12877 }),
12878 );
12879
12880 let editor_actions = self.editor_actions.clone();
12881 Subscription::new(move || {
12882 editor_actions.borrow_mut().remove(&id);
12883 })
12884 }
12885
12886 pub fn file_header_size(&self) -> u32 {
12887 FILE_HEADER_HEIGHT
12888 }
12889
12890 pub fn revert(
12891 &mut self,
12892 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12893 cx: &mut ViewContext<Self>,
12894 ) {
12895 self.buffer().update(cx, |multi_buffer, cx| {
12896 for (buffer_id, changes) in revert_changes {
12897 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12898 buffer.update(cx, |buffer, cx| {
12899 buffer.edit(
12900 changes.into_iter().map(|(range, text)| {
12901 (range, text.to_string().map(Arc::<str>::from))
12902 }),
12903 None,
12904 cx,
12905 );
12906 });
12907 }
12908 }
12909 });
12910 self.change_selections(None, cx, |selections| selections.refresh());
12911 }
12912
12913 pub fn to_pixel_point(
12914 &mut self,
12915 source: multi_buffer::Anchor,
12916 editor_snapshot: &EditorSnapshot,
12917 cx: &mut ViewContext<Self>,
12918 ) -> Option<gpui::Point<Pixels>> {
12919 let source_point = source.to_display_point(editor_snapshot);
12920 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12921 }
12922
12923 pub fn display_to_pixel_point(
12924 &self,
12925 source: DisplayPoint,
12926 editor_snapshot: &EditorSnapshot,
12927 cx: &WindowContext,
12928 ) -> Option<gpui::Point<Pixels>> {
12929 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12930 let text_layout_details = self.text_layout_details(cx);
12931 let scroll_top = text_layout_details
12932 .scroll_anchor
12933 .scroll_position(editor_snapshot)
12934 .y;
12935
12936 if source.row().as_f32() < scroll_top.floor() {
12937 return None;
12938 }
12939 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12940 let source_y = line_height * (source.row().as_f32() - scroll_top);
12941 Some(gpui::Point::new(source_x, source_y))
12942 }
12943
12944 pub fn has_active_completions_menu(&self) -> bool {
12945 self.context_menu.borrow().as_ref().map_or(false, |menu| {
12946 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
12947 })
12948 }
12949
12950 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12951 self.addons
12952 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
12953 }
12954
12955 pub fn unregister_addon<T: Addon>(&mut self) {
12956 self.addons.remove(&std::any::TypeId::of::<T>());
12957 }
12958
12959 pub fn addon<T: Addon>(&self) -> Option<&T> {
12960 let type_id = std::any::TypeId::of::<T>();
12961 self.addons
12962 .get(&type_id)
12963 .and_then(|item| item.to_any().downcast_ref::<T>())
12964 }
12965
12966 pub fn add_change_set(
12967 &mut self,
12968 change_set: Model<BufferChangeSet>,
12969 cx: &mut ViewContext<Self>,
12970 ) {
12971 self.diff_map.add_change_set(change_set, cx);
12972 }
12973
12974 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
12975 let text_layout_details = self.text_layout_details(cx);
12976 let style = &text_layout_details.editor_style;
12977 let font_id = cx.text_system().resolve_font(&style.text.font());
12978 let font_size = style.text.font_size.to_pixels(cx.rem_size());
12979 let line_height = style.text.line_height_in_pixels(cx.rem_size());
12980
12981 let em_width = cx
12982 .text_system()
12983 .typographic_bounds(font_id, font_size, 'm')
12984 .unwrap()
12985 .size
12986 .width;
12987
12988 gpui::Point::new(em_width, line_height)
12989 }
12990}
12991
12992fn get_unstaged_changes_for_buffers(
12993 project: &Model<Project>,
12994 buffers: impl IntoIterator<Item = Model<Buffer>>,
12995 cx: &mut ViewContext<Editor>,
12996) {
12997 let mut tasks = Vec::new();
12998 project.update(cx, |project, cx| {
12999 for buffer in buffers {
13000 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
13001 }
13002 });
13003 cx.spawn(|this, mut cx| async move {
13004 let change_sets = futures::future::join_all(tasks).await;
13005 this.update(&mut cx, |this, cx| {
13006 for change_set in change_sets {
13007 if let Some(change_set) = change_set.log_err() {
13008 this.diff_map.add_change_set(change_set, cx);
13009 }
13010 }
13011 })
13012 .ok();
13013 })
13014 .detach();
13015}
13016
13017fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13018 let tab_size = tab_size.get() as usize;
13019 let mut width = offset;
13020
13021 for ch in text.chars() {
13022 width += if ch == '\t' {
13023 tab_size - (width % tab_size)
13024 } else {
13025 1
13026 };
13027 }
13028
13029 width - offset
13030}
13031
13032#[cfg(test)]
13033mod tests {
13034 use super::*;
13035
13036 #[test]
13037 fn test_string_size_with_expanded_tabs() {
13038 let nz = |val| NonZeroU32::new(val).unwrap();
13039 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13040 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13041 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13042 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13043 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13044 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13045 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13046 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13047 }
13048}
13049
13050/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13051struct WordBreakingTokenizer<'a> {
13052 input: &'a str,
13053}
13054
13055impl<'a> WordBreakingTokenizer<'a> {
13056 fn new(input: &'a str) -> Self {
13057 Self { input }
13058 }
13059}
13060
13061fn is_char_ideographic(ch: char) -> bool {
13062 use unicode_script::Script::*;
13063 use unicode_script::UnicodeScript;
13064 matches!(ch.script(), Han | Tangut | Yi)
13065}
13066
13067fn is_grapheme_ideographic(text: &str) -> bool {
13068 text.chars().any(is_char_ideographic)
13069}
13070
13071fn is_grapheme_whitespace(text: &str) -> bool {
13072 text.chars().any(|x| x.is_whitespace())
13073}
13074
13075fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13076 text.chars().next().map_or(false, |ch| {
13077 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13078 })
13079}
13080
13081#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13082struct WordBreakToken<'a> {
13083 token: &'a str,
13084 grapheme_len: usize,
13085 is_whitespace: bool,
13086}
13087
13088impl<'a> Iterator for WordBreakingTokenizer<'a> {
13089 /// Yields a span, the count of graphemes in the token, and whether it was
13090 /// whitespace. Note that it also breaks at word boundaries.
13091 type Item = WordBreakToken<'a>;
13092
13093 fn next(&mut self) -> Option<Self::Item> {
13094 use unicode_segmentation::UnicodeSegmentation;
13095 if self.input.is_empty() {
13096 return None;
13097 }
13098
13099 let mut iter = self.input.graphemes(true).peekable();
13100 let mut offset = 0;
13101 let mut graphemes = 0;
13102 if let Some(first_grapheme) = iter.next() {
13103 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13104 offset += first_grapheme.len();
13105 graphemes += 1;
13106 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13107 if let Some(grapheme) = iter.peek().copied() {
13108 if should_stay_with_preceding_ideograph(grapheme) {
13109 offset += grapheme.len();
13110 graphemes += 1;
13111 }
13112 }
13113 } else {
13114 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13115 let mut next_word_bound = words.peek().copied();
13116 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13117 next_word_bound = words.next();
13118 }
13119 while let Some(grapheme) = iter.peek().copied() {
13120 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13121 break;
13122 };
13123 if is_grapheme_whitespace(grapheme) != is_whitespace {
13124 break;
13125 };
13126 offset += grapheme.len();
13127 graphemes += 1;
13128 iter.next();
13129 }
13130 }
13131 let token = &self.input[..offset];
13132 self.input = &self.input[offset..];
13133 if is_whitespace {
13134 Some(WordBreakToken {
13135 token: " ",
13136 grapheme_len: 1,
13137 is_whitespace: true,
13138 })
13139 } else {
13140 Some(WordBreakToken {
13141 token,
13142 grapheme_len: graphemes,
13143 is_whitespace: false,
13144 })
13145 }
13146 } else {
13147 None
13148 }
13149 }
13150}
13151
13152#[test]
13153fn test_word_breaking_tokenizer() {
13154 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13155 ("", &[]),
13156 (" ", &[(" ", 1, true)]),
13157 ("Ʒ", &[("Ʒ", 1, false)]),
13158 ("Ǽ", &[("Ǽ", 1, false)]),
13159 ("⋑", &[("⋑", 1, false)]),
13160 ("⋑⋑", &[("⋑⋑", 2, false)]),
13161 (
13162 "原理，进而",
13163 &[
13164 ("原", 1, false),
13165 ("理，", 2, false),
13166 ("进", 1, false),
13167 ("而", 1, false),
13168 ],
13169 ),
13170 (
13171 "hello world",
13172 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13173 ),
13174 (
13175 "hello, world",
13176 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13177 ),
13178 (
13179 " hello world",
13180 &[
13181 (" ", 1, true),
13182 ("hello", 5, false),
13183 (" ", 1, true),
13184 ("world", 5, false),
13185 ],
13186 ),
13187 (
13188 "这是什么 \n 钢笔",
13189 &[
13190 ("这", 1, false),
13191 ("是", 1, false),
13192 ("什", 1, false),
13193 ("么", 1, false),
13194 (" ", 1, true),
13195 ("钢", 1, false),
13196 ("笔", 1, false),
13197 ],
13198 ),
13199 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13200 ];
13201
13202 for (input, result) in tests {
13203 assert_eq!(
13204 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13205 result
13206 .iter()
13207 .copied()
13208 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13209 token,
13210 grapheme_len,
13211 is_whitespace,
13212 })
13213 .collect::<Vec<_>>()
13214 );
13215 }
13216}
13217
13218fn wrap_with_prefix(
13219 line_prefix: String,
13220 unwrapped_text: String,
13221 wrap_column: usize,
13222 tab_size: NonZeroU32,
13223) -> String {
13224 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13225 let mut wrapped_text = String::new();
13226 let mut current_line = line_prefix.clone();
13227
13228 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13229 let mut current_line_len = line_prefix_len;
13230 for WordBreakToken {
13231 token,
13232 grapheme_len,
13233 is_whitespace,
13234 } in tokenizer
13235 {
13236 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13237 wrapped_text.push_str(current_line.trim_end());
13238 wrapped_text.push('\n');
13239 current_line.truncate(line_prefix.len());
13240 current_line_len = line_prefix_len;
13241 if !is_whitespace {
13242 current_line.push_str(token);
13243 current_line_len += grapheme_len;
13244 }
13245 } else if !is_whitespace {
13246 current_line.push_str(token);
13247 current_line_len += grapheme_len;
13248 } else if current_line_len != line_prefix_len {
13249 current_line.push(' ');
13250 current_line_len += 1;
13251 }
13252 }
13253
13254 if !current_line.is_empty() {
13255 wrapped_text.push_str(¤t_line);
13256 }
13257 wrapped_text
13258}
13259
13260#[test]
13261fn test_wrap_with_prefix() {
13262 assert_eq!(
13263 wrap_with_prefix(
13264 "# ".to_string(),
13265 "abcdefg".to_string(),
13266 4,
13267 NonZeroU32::new(4).unwrap()
13268 ),
13269 "# abcdefg"
13270 );
13271 assert_eq!(
13272 wrap_with_prefix(
13273 "".to_string(),
13274 "\thello world".to_string(),
13275 8,
13276 NonZeroU32::new(4).unwrap()
13277 ),
13278 "hello\nworld"
13279 );
13280 assert_eq!(
13281 wrap_with_prefix(
13282 "// ".to_string(),
13283 "xx \nyy zz aa bb cc".to_string(),
13284 12,
13285 NonZeroU32::new(4).unwrap()
13286 ),
13287 "// xx yy zz\n// aa bb cc"
13288 );
13289 assert_eq!(
13290 wrap_with_prefix(
13291 String::new(),
13292 "这是什么 \n 钢笔".to_string(),
13293 3,
13294 NonZeroU32::new(4).unwrap()
13295 ),
13296 "这是什\n么 钢\n笔"
13297 );
13298}
13299
13300fn hunks_for_selections(
13301 snapshot: &EditorSnapshot,
13302 selections: &[Selection<Point>],
13303) -> Vec<MultiBufferDiffHunk> {
13304 hunks_for_ranges(
13305 selections.iter().map(|selection| selection.range()),
13306 snapshot,
13307 )
13308}
13309
13310pub fn hunks_for_ranges(
13311 ranges: impl Iterator<Item = Range<Point>>,
13312 snapshot: &EditorSnapshot,
13313) -> Vec<MultiBufferDiffHunk> {
13314 let mut hunks = Vec::new();
13315 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13316 HashMap::default();
13317 for query_range in ranges {
13318 let query_rows =
13319 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
13320 for hunk in snapshot.diff_map.diff_hunks_in_range(
13321 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
13322 &snapshot.buffer_snapshot,
13323 ) {
13324 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13325 // when the caret is just above or just below the deleted hunk.
13326 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13327 let related_to_selection = if allow_adjacent {
13328 hunk.row_range.overlaps(&query_rows)
13329 || hunk.row_range.start == query_rows.end
13330 || hunk.row_range.end == query_rows.start
13331 } else {
13332 hunk.row_range.overlaps(&query_rows)
13333 };
13334 if related_to_selection {
13335 if !processed_buffer_rows
13336 .entry(hunk.buffer_id)
13337 .or_default()
13338 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13339 {
13340 continue;
13341 }
13342 hunks.push(hunk);
13343 }
13344 }
13345 }
13346
13347 hunks
13348}
13349
13350pub trait CollaborationHub {
13351 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13352 fn user_participant_indices<'a>(
13353 &self,
13354 cx: &'a AppContext,
13355 ) -> &'a HashMap<u64, ParticipantIndex>;
13356 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13357}
13358
13359impl CollaborationHub for Model<Project> {
13360 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13361 self.read(cx).collaborators()
13362 }
13363
13364 fn user_participant_indices<'a>(
13365 &self,
13366 cx: &'a AppContext,
13367 ) -> &'a HashMap<u64, ParticipantIndex> {
13368 self.read(cx).user_store().read(cx).participant_indices()
13369 }
13370
13371 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13372 let this = self.read(cx);
13373 let user_ids = this.collaborators().values().map(|c| c.user_id);
13374 this.user_store().read_with(cx, |user_store, cx| {
13375 user_store.participant_names(user_ids, cx)
13376 })
13377 }
13378}
13379
13380pub trait SemanticsProvider {
13381 fn hover(
13382 &self,
13383 buffer: &Model<Buffer>,
13384 position: text::Anchor,
13385 cx: &mut AppContext,
13386 ) -> Option<Task<Vec<project::Hover>>>;
13387
13388 fn inlay_hints(
13389 &self,
13390 buffer_handle: Model<Buffer>,
13391 range: Range<text::Anchor>,
13392 cx: &mut AppContext,
13393 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13394
13395 fn resolve_inlay_hint(
13396 &self,
13397 hint: InlayHint,
13398 buffer_handle: Model<Buffer>,
13399 server_id: LanguageServerId,
13400 cx: &mut AppContext,
13401 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13402
13403 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13404
13405 fn document_highlights(
13406 &self,
13407 buffer: &Model<Buffer>,
13408 position: text::Anchor,
13409 cx: &mut AppContext,
13410 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13411
13412 fn definitions(
13413 &self,
13414 buffer: &Model<Buffer>,
13415 position: text::Anchor,
13416 kind: GotoDefinitionKind,
13417 cx: &mut AppContext,
13418 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13419
13420 fn range_for_rename(
13421 &self,
13422 buffer: &Model<Buffer>,
13423 position: text::Anchor,
13424 cx: &mut AppContext,
13425 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13426
13427 fn perform_rename(
13428 &self,
13429 buffer: &Model<Buffer>,
13430 position: text::Anchor,
13431 new_name: String,
13432 cx: &mut AppContext,
13433 ) -> Option<Task<Result<ProjectTransaction>>>;
13434}
13435
13436pub trait CompletionProvider {
13437 fn completions(
13438 &self,
13439 buffer: &Model<Buffer>,
13440 buffer_position: text::Anchor,
13441 trigger: CompletionContext,
13442 cx: &mut ViewContext<Editor>,
13443 ) -> Task<Result<Vec<Completion>>>;
13444
13445 fn resolve_completions(
13446 &self,
13447 buffer: Model<Buffer>,
13448 completion_indices: Vec<usize>,
13449 completions: Rc<RefCell<Box<[Completion]>>>,
13450 cx: &mut ViewContext<Editor>,
13451 ) -> Task<Result<bool>>;
13452
13453 fn apply_additional_edits_for_completion(
13454 &self,
13455 _buffer: Model<Buffer>,
13456 _completions: Rc<RefCell<Box<[Completion]>>>,
13457 _completion_index: usize,
13458 _push_to_history: bool,
13459 _cx: &mut ViewContext<Editor>,
13460 ) -> Task<Result<Option<language::Transaction>>> {
13461 Task::ready(Ok(None))
13462 }
13463
13464 fn is_completion_trigger(
13465 &self,
13466 buffer: &Model<Buffer>,
13467 position: language::Anchor,
13468 text: &str,
13469 trigger_in_words: bool,
13470 cx: &mut ViewContext<Editor>,
13471 ) -> bool;
13472
13473 fn sort_completions(&self) -> bool {
13474 true
13475 }
13476}
13477
13478pub trait CodeActionProvider {
13479 fn code_actions(
13480 &self,
13481 buffer: &Model<Buffer>,
13482 range: Range<text::Anchor>,
13483 cx: &mut WindowContext,
13484 ) -> Task<Result<Vec<CodeAction>>>;
13485
13486 fn apply_code_action(
13487 &self,
13488 buffer_handle: Model<Buffer>,
13489 action: CodeAction,
13490 excerpt_id: ExcerptId,
13491 push_to_history: bool,
13492 cx: &mut WindowContext,
13493 ) -> Task<Result<ProjectTransaction>>;
13494}
13495
13496impl CodeActionProvider for Model<Project> {
13497 fn code_actions(
13498 &self,
13499 buffer: &Model<Buffer>,
13500 range: Range<text::Anchor>,
13501 cx: &mut WindowContext,
13502 ) -> Task<Result<Vec<CodeAction>>> {
13503 self.update(cx, |project, cx| {
13504 project.code_actions(buffer, range, None, cx)
13505 })
13506 }
13507
13508 fn apply_code_action(
13509 &self,
13510 buffer_handle: Model<Buffer>,
13511 action: CodeAction,
13512 _excerpt_id: ExcerptId,
13513 push_to_history: bool,
13514 cx: &mut WindowContext,
13515 ) -> Task<Result<ProjectTransaction>> {
13516 self.update(cx, |project, cx| {
13517 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13518 })
13519 }
13520}
13521
13522fn snippet_completions(
13523 project: &Project,
13524 buffer: &Model<Buffer>,
13525 buffer_position: text::Anchor,
13526 cx: &mut AppContext,
13527) -> Task<Result<Vec<Completion>>> {
13528 let language = buffer.read(cx).language_at(buffer_position);
13529 let language_name = language.as_ref().map(|language| language.lsp_id());
13530 let snippet_store = project.snippets().read(cx);
13531 let snippets = snippet_store.snippets_for(language_name, cx);
13532
13533 if snippets.is_empty() {
13534 return Task::ready(Ok(vec![]));
13535 }
13536 let snapshot = buffer.read(cx).text_snapshot();
13537 let chars: String = snapshot
13538 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13539 .collect();
13540
13541 let scope = language.map(|language| language.default_scope());
13542 let executor = cx.background_executor().clone();
13543
13544 cx.background_executor().spawn(async move {
13545 let classifier = CharClassifier::new(scope).for_completion(true);
13546 let mut last_word = chars
13547 .chars()
13548 .take_while(|c| classifier.is_word(*c))
13549 .collect::<String>();
13550 last_word = last_word.chars().rev().collect();
13551
13552 if last_word.is_empty() {
13553 return Ok(vec![]);
13554 }
13555
13556 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13557 let to_lsp = |point: &text::Anchor| {
13558 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13559 point_to_lsp(end)
13560 };
13561 let lsp_end = to_lsp(&buffer_position);
13562
13563 let candidates = snippets
13564 .iter()
13565 .enumerate()
13566 .flat_map(|(ix, snippet)| {
13567 snippet
13568 .prefix
13569 .iter()
13570 .map(move |prefix| StringMatchCandidate::new(ix, &prefix))
13571 })
13572 .collect::<Vec<StringMatchCandidate>>();
13573
13574 let mut matches = fuzzy::match_strings(
13575 &candidates,
13576 &last_word,
13577 last_word.chars().any(|c| c.is_uppercase()),
13578 100,
13579 &Default::default(),
13580 executor,
13581 )
13582 .await;
13583
13584 // Remove all candidates where the query's start does not match the start of any word in the candidate
13585 if let Some(query_start) = last_word.chars().next() {
13586 matches.retain(|string_match| {
13587 split_words(&string_match.string).any(|word| {
13588 // Check that the first codepoint of the word as lowercase matches the first
13589 // codepoint of the query as lowercase
13590 word.chars()
13591 .flat_map(|codepoint| codepoint.to_lowercase())
13592 .zip(query_start.to_lowercase())
13593 .all(|(word_cp, query_cp)| word_cp == query_cp)
13594 })
13595 });
13596 }
13597
13598 let matched_strings = matches
13599 .into_iter()
13600 .map(|m| m.string)
13601 .collect::<HashSet<_>>();
13602
13603 let result: Vec<Completion> = snippets
13604 .into_iter()
13605 .filter_map(|snippet| {
13606 let matching_prefix = snippet
13607 .prefix
13608 .iter()
13609 .find(|prefix| matched_strings.contains(*prefix))?;
13610 let start = as_offset - last_word.len();
13611 let start = snapshot.anchor_before(start);
13612 let range = start..buffer_position;
13613 let lsp_start = to_lsp(&start);
13614 let lsp_range = lsp::Range {
13615 start: lsp_start,
13616 end: lsp_end,
13617 };
13618 Some(Completion {
13619 old_range: range,
13620 new_text: snippet.body.clone(),
13621 resolved: false,
13622 label: CodeLabel {
13623 text: matching_prefix.clone(),
13624 runs: vec![],
13625 filter_range: 0..matching_prefix.len(),
13626 },
13627 server_id: LanguageServerId(usize::MAX),
13628 documentation: snippet.description.clone().map(Documentation::SingleLine),
13629 lsp_completion: lsp::CompletionItem {
13630 label: snippet.prefix.first().unwrap().clone(),
13631 kind: Some(CompletionItemKind::SNIPPET),
13632 label_details: snippet.description.as_ref().map(|description| {
13633 lsp::CompletionItemLabelDetails {
13634 detail: Some(description.clone()),
13635 description: None,
13636 }
13637 }),
13638 insert_text_format: Some(InsertTextFormat::SNIPPET),
13639 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13640 lsp::InsertReplaceEdit {
13641 new_text: snippet.body.clone(),
13642 insert: lsp_range,
13643 replace: lsp_range,
13644 },
13645 )),
13646 filter_text: Some(snippet.body.clone()),
13647 sort_text: Some(char::MAX.to_string()),
13648 ..Default::default()
13649 },
13650 confirm: None,
13651 })
13652 })
13653 .collect();
13654
13655 Ok(result)
13656 })
13657}
13658
13659impl CompletionProvider for Model<Project> {
13660 fn completions(
13661 &self,
13662 buffer: &Model<Buffer>,
13663 buffer_position: text::Anchor,
13664 options: CompletionContext,
13665 cx: &mut ViewContext<Editor>,
13666 ) -> Task<Result<Vec<Completion>>> {
13667 self.update(cx, |project, cx| {
13668 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13669 let project_completions = project.completions(buffer, buffer_position, options, cx);
13670 cx.background_executor().spawn(async move {
13671 let mut completions = project_completions.await?;
13672 let snippets_completions = snippets.await?;
13673 completions.extend(snippets_completions);
13674 Ok(completions)
13675 })
13676 })
13677 }
13678
13679 fn resolve_completions(
13680 &self,
13681 buffer: Model<Buffer>,
13682 completion_indices: Vec<usize>,
13683 completions: Rc<RefCell<Box<[Completion]>>>,
13684 cx: &mut ViewContext<Editor>,
13685 ) -> Task<Result<bool>> {
13686 self.update(cx, |project, cx| {
13687 project.lsp_store().update(cx, |lsp_store, cx| {
13688 lsp_store.resolve_completions(buffer, completion_indices, completions, cx)
13689 })
13690 })
13691 }
13692
13693 fn apply_additional_edits_for_completion(
13694 &self,
13695 buffer: Model<Buffer>,
13696 completions: Rc<RefCell<Box<[Completion]>>>,
13697 completion_index: usize,
13698 push_to_history: bool,
13699 cx: &mut ViewContext<Editor>,
13700 ) -> Task<Result<Option<language::Transaction>>> {
13701 self.update(cx, |project, cx| {
13702 project.lsp_store().update(cx, |lsp_store, cx| {
13703 lsp_store.apply_additional_edits_for_completion(
13704 buffer,
13705 completions,
13706 completion_index,
13707 push_to_history,
13708 cx,
13709 )
13710 })
13711 })
13712 }
13713
13714 fn is_completion_trigger(
13715 &self,
13716 buffer: &Model<Buffer>,
13717 position: language::Anchor,
13718 text: &str,
13719 trigger_in_words: bool,
13720 cx: &mut ViewContext<Editor>,
13721 ) -> bool {
13722 let mut chars = text.chars();
13723 let char = if let Some(char) = chars.next() {
13724 char
13725 } else {
13726 return false;
13727 };
13728 if chars.next().is_some() {
13729 return false;
13730 }
13731
13732 let buffer = buffer.read(cx);
13733 let snapshot = buffer.snapshot();
13734 if !snapshot.settings_at(position, cx).show_completions_on_input {
13735 return false;
13736 }
13737 let classifier = snapshot.char_classifier_at(position).for_completion(true);
13738 if trigger_in_words && classifier.is_word(char) {
13739 return true;
13740 }
13741
13742 buffer.completion_triggers().contains(text)
13743 }
13744}
13745
13746impl SemanticsProvider for Model<Project> {
13747 fn hover(
13748 &self,
13749 buffer: &Model<Buffer>,
13750 position: text::Anchor,
13751 cx: &mut AppContext,
13752 ) -> Option<Task<Vec<project::Hover>>> {
13753 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13754 }
13755
13756 fn document_highlights(
13757 &self,
13758 buffer: &Model<Buffer>,
13759 position: text::Anchor,
13760 cx: &mut AppContext,
13761 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13762 Some(self.update(cx, |project, cx| {
13763 project.document_highlights(buffer, position, cx)
13764 }))
13765 }
13766
13767 fn definitions(
13768 &self,
13769 buffer: &Model<Buffer>,
13770 position: text::Anchor,
13771 kind: GotoDefinitionKind,
13772 cx: &mut AppContext,
13773 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13774 Some(self.update(cx, |project, cx| match kind {
13775 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13776 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13777 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13778 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13779 }))
13780 }
13781
13782 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13783 // TODO: make this work for remote projects
13784 self.read(cx)
13785 .language_servers_for_local_buffer(buffer.read(cx), cx)
13786 .any(
13787 |(_, server)| match server.capabilities().inlay_hint_provider {
13788 Some(lsp::OneOf::Left(enabled)) => enabled,
13789 Some(lsp::OneOf::Right(_)) => true,
13790 None => false,
13791 },
13792 )
13793 }
13794
13795 fn inlay_hints(
13796 &self,
13797 buffer_handle: Model<Buffer>,
13798 range: Range<text::Anchor>,
13799 cx: &mut AppContext,
13800 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13801 Some(self.update(cx, |project, cx| {
13802 project.inlay_hints(buffer_handle, range, cx)
13803 }))
13804 }
13805
13806 fn resolve_inlay_hint(
13807 &self,
13808 hint: InlayHint,
13809 buffer_handle: Model<Buffer>,
13810 server_id: LanguageServerId,
13811 cx: &mut AppContext,
13812 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13813 Some(self.update(cx, |project, cx| {
13814 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13815 }))
13816 }
13817
13818 fn range_for_rename(
13819 &self,
13820 buffer: &Model<Buffer>,
13821 position: text::Anchor,
13822 cx: &mut AppContext,
13823 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13824 Some(self.update(cx, |project, cx| {
13825 project.prepare_rename(buffer.clone(), position, cx)
13826 }))
13827 }
13828
13829 fn perform_rename(
13830 &self,
13831 buffer: &Model<Buffer>,
13832 position: text::Anchor,
13833 new_name: String,
13834 cx: &mut AppContext,
13835 ) -> Option<Task<Result<ProjectTransaction>>> {
13836 Some(self.update(cx, |project, cx| {
13837 project.perform_rename(buffer.clone(), position, new_name, cx)
13838 }))
13839 }
13840}
13841
13842fn inlay_hint_settings(
13843 location: Anchor,
13844 snapshot: &MultiBufferSnapshot,
13845 cx: &mut ViewContext<'_, Editor>,
13846) -> InlayHintSettings {
13847 let file = snapshot.file_at(location);
13848 let language = snapshot.language_at(location).map(|l| l.name());
13849 language_settings(language, file, cx).inlay_hints
13850}
13851
13852fn consume_contiguous_rows(
13853 contiguous_row_selections: &mut Vec<Selection<Point>>,
13854 selection: &Selection<Point>,
13855 display_map: &DisplaySnapshot,
13856 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
13857) -> (MultiBufferRow, MultiBufferRow) {
13858 contiguous_row_selections.push(selection.clone());
13859 let start_row = MultiBufferRow(selection.start.row);
13860 let mut end_row = ending_row(selection, display_map);
13861
13862 while let Some(next_selection) = selections.peek() {
13863 if next_selection.start.row <= end_row.0 {
13864 end_row = ending_row(next_selection, display_map);
13865 contiguous_row_selections.push(selections.next().unwrap().clone());
13866 } else {
13867 break;
13868 }
13869 }
13870 (start_row, end_row)
13871}
13872
13873fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13874 if next_selection.end.column > 0 || next_selection.is_empty() {
13875 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13876 } else {
13877 MultiBufferRow(next_selection.end.row)
13878 }
13879}
13880
13881impl EditorSnapshot {
13882 pub fn remote_selections_in_range<'a>(
13883 &'a self,
13884 range: &'a Range<Anchor>,
13885 collaboration_hub: &dyn CollaborationHub,
13886 cx: &'a AppContext,
13887 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13888 let participant_names = collaboration_hub.user_names(cx);
13889 let participant_indices = collaboration_hub.user_participant_indices(cx);
13890 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13891 let collaborators_by_replica_id = collaborators_by_peer_id
13892 .iter()
13893 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13894 .collect::<HashMap<_, _>>();
13895 self.buffer_snapshot
13896 .selections_in_range(range, false)
13897 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13898 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13899 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13900 let user_name = participant_names.get(&collaborator.user_id).cloned();
13901 Some(RemoteSelection {
13902 replica_id,
13903 selection,
13904 cursor_shape,
13905 line_mode,
13906 participant_index,
13907 peer_id: collaborator.peer_id,
13908 user_name,
13909 })
13910 })
13911 }
13912
13913 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13914 self.display_snapshot.buffer_snapshot.language_at(position)
13915 }
13916
13917 pub fn is_focused(&self) -> bool {
13918 self.is_focused
13919 }
13920
13921 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13922 self.placeholder_text.as_ref()
13923 }
13924
13925 pub fn scroll_position(&self) -> gpui::Point<f32> {
13926 self.scroll_anchor.scroll_position(&self.display_snapshot)
13927 }
13928
13929 fn gutter_dimensions(
13930 &self,
13931 font_id: FontId,
13932 font_size: Pixels,
13933 em_width: Pixels,
13934 em_advance: Pixels,
13935 max_line_number_width: Pixels,
13936 cx: &AppContext,
13937 ) -> GutterDimensions {
13938 if !self.show_gutter {
13939 return GutterDimensions::default();
13940 }
13941 let descent = cx.text_system().descent(font_id, font_size);
13942
13943 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13944 matches!(
13945 ProjectSettings::get_global(cx).git.git_gutter,
13946 Some(GitGutterSetting::TrackedFiles)
13947 )
13948 });
13949 let gutter_settings = EditorSettings::get_global(cx).gutter;
13950 let show_line_numbers = self
13951 .show_line_numbers
13952 .unwrap_or(gutter_settings.line_numbers);
13953 let line_gutter_width = if show_line_numbers {
13954 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13955 let min_width_for_number_on_gutter = em_advance * 4.0;
13956 max_line_number_width.max(min_width_for_number_on_gutter)
13957 } else {
13958 0.0.into()
13959 };
13960
13961 let show_code_actions = self
13962 .show_code_actions
13963 .unwrap_or(gutter_settings.code_actions);
13964
13965 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13966
13967 let git_blame_entries_width =
13968 self.git_blame_gutter_max_author_length
13969 .map(|max_author_length| {
13970 // Length of the author name, but also space for the commit hash,
13971 // the spacing and the timestamp.
13972 let max_char_count = max_author_length
13973 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13974 + 7 // length of commit sha
13975 + 14 // length of max relative timestamp ("60 minutes ago")
13976 + 4; // gaps and margins
13977
13978 em_advance * max_char_count
13979 });
13980
13981 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13982 left_padding += if show_code_actions || show_runnables {
13983 em_width * 3.0
13984 } else if show_git_gutter && show_line_numbers {
13985 em_width * 2.0
13986 } else if show_git_gutter || show_line_numbers {
13987 em_width
13988 } else {
13989 px(0.)
13990 };
13991
13992 let right_padding = if gutter_settings.folds && show_line_numbers {
13993 em_width * 4.0
13994 } else if gutter_settings.folds {
13995 em_width * 3.0
13996 } else if show_line_numbers {
13997 em_width
13998 } else {
13999 px(0.)
14000 };
14001
14002 GutterDimensions {
14003 left_padding,
14004 right_padding,
14005 width: line_gutter_width + left_padding + right_padding,
14006 margin: -descent,
14007 git_blame_entries_width,
14008 }
14009 }
14010
14011 pub fn render_crease_toggle(
14012 &self,
14013 buffer_row: MultiBufferRow,
14014 row_contains_cursor: bool,
14015 editor: View<Editor>,
14016 cx: &mut WindowContext,
14017 ) -> Option<AnyElement> {
14018 let folded = self.is_line_folded(buffer_row);
14019 let mut is_foldable = false;
14020
14021 if let Some(crease) = self
14022 .crease_snapshot
14023 .query_row(buffer_row, &self.buffer_snapshot)
14024 {
14025 is_foldable = true;
14026 match crease {
14027 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
14028 if let Some(render_toggle) = render_toggle {
14029 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14030 if folded {
14031 editor.update(cx, |editor, cx| {
14032 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14033 });
14034 } else {
14035 editor.update(cx, |editor, cx| {
14036 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14037 });
14038 }
14039 });
14040 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14041 }
14042 }
14043 }
14044 }
14045
14046 is_foldable |= self.starts_indent(buffer_row);
14047
14048 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14049 Some(
14050 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14051 .toggle_state(folded)
14052 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14053 if folded {
14054 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14055 } else {
14056 this.fold_at(&FoldAt { buffer_row }, cx);
14057 }
14058 }))
14059 .into_any_element(),
14060 )
14061 } else {
14062 None
14063 }
14064 }
14065
14066 pub fn render_crease_trailer(
14067 &self,
14068 buffer_row: MultiBufferRow,
14069 cx: &mut WindowContext,
14070 ) -> Option<AnyElement> {
14071 let folded = self.is_line_folded(buffer_row);
14072 if let Crease::Inline { render_trailer, .. } = self
14073 .crease_snapshot
14074 .query_row(buffer_row, &self.buffer_snapshot)?
14075 {
14076 let render_trailer = render_trailer.as_ref()?;
14077 Some(render_trailer(buffer_row, folded, cx))
14078 } else {
14079 None
14080 }
14081 }
14082}
14083
14084impl Deref for EditorSnapshot {
14085 type Target = DisplaySnapshot;
14086
14087 fn deref(&self) -> &Self::Target {
14088 &self.display_snapshot
14089 }
14090}
14091
14092#[derive(Clone, Debug, PartialEq, Eq)]
14093pub enum EditorEvent {
14094 InputIgnored {
14095 text: Arc<str>,
14096 },
14097 InputHandled {
14098 utf16_range_to_replace: Option<Range<isize>>,
14099 text: Arc<str>,
14100 },
14101 ExcerptsAdded {
14102 buffer: Model<Buffer>,
14103 predecessor: ExcerptId,
14104 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14105 },
14106 ExcerptsRemoved {
14107 ids: Vec<ExcerptId>,
14108 },
14109 BufferFoldToggled {
14110 ids: Vec<ExcerptId>,
14111 folded: bool,
14112 },
14113 ExcerptsEdited {
14114 ids: Vec<ExcerptId>,
14115 },
14116 ExcerptsExpanded {
14117 ids: Vec<ExcerptId>,
14118 },
14119 BufferEdited,
14120 Edited {
14121 transaction_id: clock::Lamport,
14122 },
14123 Reparsed(BufferId),
14124 Focused,
14125 FocusedIn,
14126 Blurred,
14127 DirtyChanged,
14128 Saved,
14129 TitleChanged,
14130 DiffBaseChanged,
14131 SelectionsChanged {
14132 local: bool,
14133 },
14134 ScrollPositionChanged {
14135 local: bool,
14136 autoscroll: bool,
14137 },
14138 Closed,
14139 TransactionUndone {
14140 transaction_id: clock::Lamport,
14141 },
14142 TransactionBegun {
14143 transaction_id: clock::Lamport,
14144 },
14145 Reloaded,
14146 CursorShapeChanged,
14147}
14148
14149impl EventEmitter<EditorEvent> for Editor {}
14150
14151impl FocusableView for Editor {
14152 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14153 self.focus_handle.clone()
14154 }
14155}
14156
14157impl Render for Editor {
14158 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14159 let settings = ThemeSettings::get_global(cx);
14160
14161 let mut text_style = match self.mode {
14162 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14163 color: cx.theme().colors().editor_foreground,
14164 font_family: settings.ui_font.family.clone(),
14165 font_features: settings.ui_font.features.clone(),
14166 font_fallbacks: settings.ui_font.fallbacks.clone(),
14167 font_size: rems(0.875).into(),
14168 font_weight: settings.ui_font.weight,
14169 line_height: relative(settings.buffer_line_height.value()),
14170 ..Default::default()
14171 },
14172 EditorMode::Full => TextStyle {
14173 color: cx.theme().colors().editor_foreground,
14174 font_family: settings.buffer_font.family.clone(),
14175 font_features: settings.buffer_font.features.clone(),
14176 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14177 font_size: settings.buffer_font_size(cx).into(),
14178 font_weight: settings.buffer_font.weight,
14179 line_height: relative(settings.buffer_line_height.value()),
14180 ..Default::default()
14181 },
14182 };
14183 if let Some(text_style_refinement) = &self.text_style_refinement {
14184 text_style.refine(text_style_refinement)
14185 }
14186
14187 let background = match self.mode {
14188 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14189 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14190 EditorMode::Full => cx.theme().colors().editor_background,
14191 };
14192
14193 EditorElement::new(
14194 cx.view(),
14195 EditorStyle {
14196 background,
14197 local_player: cx.theme().players().local(),
14198 text: text_style,
14199 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14200 syntax: cx.theme().syntax().clone(),
14201 status: cx.theme().status().clone(),
14202 inlay_hints_style: make_inlay_hints_style(cx),
14203 inline_completion_styles: make_suggestion_styles(cx),
14204 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14205 },
14206 )
14207 }
14208}
14209
14210impl ViewInputHandler for Editor {
14211 fn text_for_range(
14212 &mut self,
14213 range_utf16: Range<usize>,
14214 adjusted_range: &mut Option<Range<usize>>,
14215 cx: &mut ViewContext<Self>,
14216 ) -> Option<String> {
14217 let snapshot = self.buffer.read(cx).read(cx);
14218 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14219 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14220 if (start.0..end.0) != range_utf16 {
14221 adjusted_range.replace(start.0..end.0);
14222 }
14223 Some(snapshot.text_for_range(start..end).collect())
14224 }
14225
14226 fn selected_text_range(
14227 &mut self,
14228 ignore_disabled_input: bool,
14229 cx: &mut ViewContext<Self>,
14230 ) -> Option<UTF16Selection> {
14231 // Prevent the IME menu from appearing when holding down an alphabetic key
14232 // while input is disabled.
14233 if !ignore_disabled_input && !self.input_enabled {
14234 return None;
14235 }
14236
14237 let selection = self.selections.newest::<OffsetUtf16>(cx);
14238 let range = selection.range();
14239
14240 Some(UTF16Selection {
14241 range: range.start.0..range.end.0,
14242 reversed: selection.reversed,
14243 })
14244 }
14245
14246 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14247 let snapshot = self.buffer.read(cx).read(cx);
14248 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14249 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14250 }
14251
14252 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14253 self.clear_highlights::<InputComposition>(cx);
14254 self.ime_transaction.take();
14255 }
14256
14257 fn replace_text_in_range(
14258 &mut self,
14259 range_utf16: Option<Range<usize>>,
14260 text: &str,
14261 cx: &mut ViewContext<Self>,
14262 ) {
14263 if !self.input_enabled {
14264 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14265 return;
14266 }
14267
14268 self.transact(cx, |this, cx| {
14269 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14270 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14271 Some(this.selection_replacement_ranges(range_utf16, cx))
14272 } else {
14273 this.marked_text_ranges(cx)
14274 };
14275
14276 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14277 let newest_selection_id = this.selections.newest_anchor().id;
14278 this.selections
14279 .all::<OffsetUtf16>(cx)
14280 .iter()
14281 .zip(ranges_to_replace.iter())
14282 .find_map(|(selection, range)| {
14283 if selection.id == newest_selection_id {
14284 Some(
14285 (range.start.0 as isize - selection.head().0 as isize)
14286 ..(range.end.0 as isize - selection.head().0 as isize),
14287 )
14288 } else {
14289 None
14290 }
14291 })
14292 });
14293
14294 cx.emit(EditorEvent::InputHandled {
14295 utf16_range_to_replace: range_to_replace,
14296 text: text.into(),
14297 });
14298
14299 if let Some(new_selected_ranges) = new_selected_ranges {
14300 this.change_selections(None, cx, |selections| {
14301 selections.select_ranges(new_selected_ranges)
14302 });
14303 this.backspace(&Default::default(), cx);
14304 }
14305
14306 this.handle_input(text, cx);
14307 });
14308
14309 if let Some(transaction) = self.ime_transaction {
14310 self.buffer.update(cx, |buffer, cx| {
14311 buffer.group_until_transaction(transaction, cx);
14312 });
14313 }
14314
14315 self.unmark_text(cx);
14316 }
14317
14318 fn replace_and_mark_text_in_range(
14319 &mut self,
14320 range_utf16: Option<Range<usize>>,
14321 text: &str,
14322 new_selected_range_utf16: Option<Range<usize>>,
14323 cx: &mut ViewContext<Self>,
14324 ) {
14325 if !self.input_enabled {
14326 return;
14327 }
14328
14329 let transaction = self.transact(cx, |this, cx| {
14330 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14331 let snapshot = this.buffer.read(cx).read(cx);
14332 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14333 for marked_range in &mut marked_ranges {
14334 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14335 marked_range.start.0 += relative_range_utf16.start;
14336 marked_range.start =
14337 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14338 marked_range.end =
14339 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14340 }
14341 }
14342 Some(marked_ranges)
14343 } else if let Some(range_utf16) = range_utf16 {
14344 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14345 Some(this.selection_replacement_ranges(range_utf16, cx))
14346 } else {
14347 None
14348 };
14349
14350 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14351 let newest_selection_id = this.selections.newest_anchor().id;
14352 this.selections
14353 .all::<OffsetUtf16>(cx)
14354 .iter()
14355 .zip(ranges_to_replace.iter())
14356 .find_map(|(selection, range)| {
14357 if selection.id == newest_selection_id {
14358 Some(
14359 (range.start.0 as isize - selection.head().0 as isize)
14360 ..(range.end.0 as isize - selection.head().0 as isize),
14361 )
14362 } else {
14363 None
14364 }
14365 })
14366 });
14367
14368 cx.emit(EditorEvent::InputHandled {
14369 utf16_range_to_replace: range_to_replace,
14370 text: text.into(),
14371 });
14372
14373 if let Some(ranges) = ranges_to_replace {
14374 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14375 }
14376
14377 let marked_ranges = {
14378 let snapshot = this.buffer.read(cx).read(cx);
14379 this.selections
14380 .disjoint_anchors()
14381 .iter()
14382 .map(|selection| {
14383 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14384 })
14385 .collect::<Vec<_>>()
14386 };
14387
14388 if text.is_empty() {
14389 this.unmark_text(cx);
14390 } else {
14391 this.highlight_text::<InputComposition>(
14392 marked_ranges.clone(),
14393 HighlightStyle {
14394 underline: Some(UnderlineStyle {
14395 thickness: px(1.),
14396 color: None,
14397 wavy: false,
14398 }),
14399 ..Default::default()
14400 },
14401 cx,
14402 );
14403 }
14404
14405 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14406 let use_autoclose = this.use_autoclose;
14407 let use_auto_surround = this.use_auto_surround;
14408 this.set_use_autoclose(false);
14409 this.set_use_auto_surround(false);
14410 this.handle_input(text, cx);
14411 this.set_use_autoclose(use_autoclose);
14412 this.set_use_auto_surround(use_auto_surround);
14413
14414 if let Some(new_selected_range) = new_selected_range_utf16 {
14415 let snapshot = this.buffer.read(cx).read(cx);
14416 let new_selected_ranges = marked_ranges
14417 .into_iter()
14418 .map(|marked_range| {
14419 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14420 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14421 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14422 snapshot.clip_offset_utf16(new_start, Bias::Left)
14423 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14424 })
14425 .collect::<Vec<_>>();
14426
14427 drop(snapshot);
14428 this.change_selections(None, cx, |selections| {
14429 selections.select_ranges(new_selected_ranges)
14430 });
14431 }
14432 });
14433
14434 self.ime_transaction = self.ime_transaction.or(transaction);
14435 if let Some(transaction) = self.ime_transaction {
14436 self.buffer.update(cx, |buffer, cx| {
14437 buffer.group_until_transaction(transaction, cx);
14438 });
14439 }
14440
14441 if self.text_highlights::<InputComposition>(cx).is_none() {
14442 self.ime_transaction.take();
14443 }
14444 }
14445
14446 fn bounds_for_range(
14447 &mut self,
14448 range_utf16: Range<usize>,
14449 element_bounds: gpui::Bounds<Pixels>,
14450 cx: &mut ViewContext<Self>,
14451 ) -> Option<gpui::Bounds<Pixels>> {
14452 let text_layout_details = self.text_layout_details(cx);
14453 let gpui::Point {
14454 x: em_width,
14455 y: line_height,
14456 } = self.character_size(cx);
14457
14458 let snapshot = self.snapshot(cx);
14459 let scroll_position = snapshot.scroll_position();
14460 let scroll_left = scroll_position.x * em_width;
14461
14462 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14463 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14464 + self.gutter_dimensions.width
14465 + self.gutter_dimensions.margin;
14466 let y = line_height * (start.row().as_f32() - scroll_position.y);
14467
14468 Some(Bounds {
14469 origin: element_bounds.origin + point(x, y),
14470 size: size(em_width, line_height),
14471 })
14472 }
14473}
14474
14475trait SelectionExt {
14476 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14477 fn spanned_rows(
14478 &self,
14479 include_end_if_at_line_start: bool,
14480 map: &DisplaySnapshot,
14481 ) -> Range<MultiBufferRow>;
14482}
14483
14484impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14485 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14486 let start = self
14487 .start
14488 .to_point(&map.buffer_snapshot)
14489 .to_display_point(map);
14490 let end = self
14491 .end
14492 .to_point(&map.buffer_snapshot)
14493 .to_display_point(map);
14494 if self.reversed {
14495 end..start
14496 } else {
14497 start..end
14498 }
14499 }
14500
14501 fn spanned_rows(
14502 &self,
14503 include_end_if_at_line_start: bool,
14504 map: &DisplaySnapshot,
14505 ) -> Range<MultiBufferRow> {
14506 let start = self.start.to_point(&map.buffer_snapshot);
14507 let mut end = self.end.to_point(&map.buffer_snapshot);
14508 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14509 end.row -= 1;
14510 }
14511
14512 let buffer_start = map.prev_line_boundary(start).0;
14513 let buffer_end = map.next_line_boundary(end).0;
14514 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14515 }
14516}
14517
14518impl<T: InvalidationRegion> InvalidationStack<T> {
14519 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14520 where
14521 S: Clone + ToOffset,
14522 {
14523 while let Some(region) = self.last() {
14524 let all_selections_inside_invalidation_ranges =
14525 if selections.len() == region.ranges().len() {
14526 selections
14527 .iter()
14528 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14529 .all(|(selection, invalidation_range)| {
14530 let head = selection.head().to_offset(buffer);
14531 invalidation_range.start <= head && invalidation_range.end >= head
14532 })
14533 } else {
14534 false
14535 };
14536
14537 if all_selections_inside_invalidation_ranges {
14538 break;
14539 } else {
14540 self.pop();
14541 }
14542 }
14543 }
14544}
14545
14546impl<T> Default for InvalidationStack<T> {
14547 fn default() -> Self {
14548 Self(Default::default())
14549 }
14550}
14551
14552impl<T> Deref for InvalidationStack<T> {
14553 type Target = Vec<T>;
14554
14555 fn deref(&self) -> &Self::Target {
14556 &self.0
14557 }
14558}
14559
14560impl<T> DerefMut for InvalidationStack<T> {
14561 fn deref_mut(&mut self) -> &mut Self::Target {
14562 &mut self.0
14563 }
14564}
14565
14566impl InvalidationRegion for SnippetState {
14567 fn ranges(&self) -> &[Range<Anchor>] {
14568 &self.ranges[self.active_index]
14569 }
14570}
14571
14572pub fn diagnostic_block_renderer(
14573 diagnostic: Diagnostic,
14574 max_message_rows: Option<u8>,
14575 allow_closing: bool,
14576 _is_valid: bool,
14577) -> RenderBlock {
14578 let (text_without_backticks, code_ranges) =
14579 highlight_diagnostic_message(&diagnostic, max_message_rows);
14580
14581 Arc::new(move |cx: &mut BlockContext| {
14582 let group_id: SharedString = cx.block_id.to_string().into();
14583
14584 let mut text_style = cx.text_style().clone();
14585 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14586 let theme_settings = ThemeSettings::get_global(cx);
14587 text_style.font_family = theme_settings.buffer_font.family.clone();
14588 text_style.font_style = theme_settings.buffer_font.style;
14589 text_style.font_features = theme_settings.buffer_font.features.clone();
14590 text_style.font_weight = theme_settings.buffer_font.weight;
14591
14592 let multi_line_diagnostic = diagnostic.message.contains('\n');
14593
14594 let buttons = |diagnostic: &Diagnostic| {
14595 if multi_line_diagnostic {
14596 v_flex()
14597 } else {
14598 h_flex()
14599 }
14600 .when(allow_closing, |div| {
14601 div.children(diagnostic.is_primary.then(|| {
14602 IconButton::new("close-block", IconName::XCircle)
14603 .icon_color(Color::Muted)
14604 .size(ButtonSize::Compact)
14605 .style(ButtonStyle::Transparent)
14606 .visible_on_hover(group_id.clone())
14607 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14608 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14609 }))
14610 })
14611 .child(
14612 IconButton::new("copy-block", IconName::Copy)
14613 .icon_color(Color::Muted)
14614 .size(ButtonSize::Compact)
14615 .style(ButtonStyle::Transparent)
14616 .visible_on_hover(group_id.clone())
14617 .on_click({
14618 let message = diagnostic.message.clone();
14619 move |_click, cx| {
14620 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14621 }
14622 })
14623 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14624 )
14625 };
14626
14627 let icon_size = buttons(&diagnostic)
14628 .into_any_element()
14629 .layout_as_root(AvailableSpace::min_size(), cx);
14630
14631 h_flex()
14632 .id(cx.block_id)
14633 .group(group_id.clone())
14634 .relative()
14635 .size_full()
14636 .block_mouse_down()
14637 .pl(cx.gutter_dimensions.width)
14638 .w(cx.max_width - cx.gutter_dimensions.full_width())
14639 .child(
14640 div()
14641 .flex()
14642 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14643 .flex_shrink(),
14644 )
14645 .child(buttons(&diagnostic))
14646 .child(div().flex().flex_shrink_0().child(
14647 StyledText::new(text_without_backticks.clone()).with_highlights(
14648 &text_style,
14649 code_ranges.iter().map(|range| {
14650 (
14651 range.clone(),
14652 HighlightStyle {
14653 font_weight: Some(FontWeight::BOLD),
14654 ..Default::default()
14655 },
14656 )
14657 }),
14658 ),
14659 ))
14660 .into_any_element()
14661 })
14662}
14663
14664fn inline_completion_edit_text(
14665 editor_snapshot: &EditorSnapshot,
14666 edits: &Vec<(Range<Anchor>, String)>,
14667 include_deletions: bool,
14668 cx: &WindowContext,
14669) -> InlineCompletionText {
14670 let edit_start = edits
14671 .first()
14672 .unwrap()
14673 .0
14674 .start
14675 .to_display_point(editor_snapshot);
14676
14677 let mut text = String::new();
14678 let mut offset = DisplayPoint::new(edit_start.row(), 0).to_offset(editor_snapshot, Bias::Left);
14679 let mut highlights = Vec::new();
14680 for (old_range, new_text) in edits {
14681 let old_offset_range = old_range.to_offset(&editor_snapshot.buffer_snapshot);
14682 text.extend(
14683 editor_snapshot
14684 .buffer_snapshot
14685 .chunks(offset..old_offset_range.start, false)
14686 .map(|chunk| chunk.text),
14687 );
14688 offset = old_offset_range.end;
14689
14690 let start = text.len();
14691 let color = if include_deletions && new_text.is_empty() {
14692 text.extend(
14693 editor_snapshot
14694 .buffer_snapshot
14695 .chunks(old_offset_range.start..offset, false)
14696 .map(|chunk| chunk.text),
14697 );
14698 cx.theme().status().deleted_background
14699 } else {
14700 text.push_str(new_text);
14701 cx.theme().status().created_background
14702 };
14703 let end = text.len();
14704
14705 highlights.push((
14706 start..end,
14707 HighlightStyle {
14708 background_color: Some(color),
14709 ..Default::default()
14710 },
14711 ));
14712 }
14713
14714 let edit_end = edits
14715 .last()
14716 .unwrap()
14717 .0
14718 .end
14719 .to_display_point(editor_snapshot);
14720 let end_of_line = DisplayPoint::new(edit_end.row(), editor_snapshot.line_len(edit_end.row()))
14721 .to_offset(editor_snapshot, Bias::Right);
14722 text.extend(
14723 editor_snapshot
14724 .buffer_snapshot
14725 .chunks(offset..end_of_line, false)
14726 .map(|chunk| chunk.text),
14727 );
14728
14729 InlineCompletionText::Edit {
14730 text: text.into(),
14731 highlights,
14732 }
14733}
14734
14735pub fn highlight_diagnostic_message(
14736 diagnostic: &Diagnostic,
14737 mut max_message_rows: Option<u8>,
14738) -> (SharedString, Vec<Range<usize>>) {
14739 let mut text_without_backticks = String::new();
14740 let mut code_ranges = Vec::new();
14741
14742 if let Some(source) = &diagnostic.source {
14743 text_without_backticks.push_str(source);
14744 code_ranges.push(0..source.len());
14745 text_without_backticks.push_str(": ");
14746 }
14747
14748 let mut prev_offset = 0;
14749 let mut in_code_block = false;
14750 let has_row_limit = max_message_rows.is_some();
14751 let mut newline_indices = diagnostic
14752 .message
14753 .match_indices('\n')
14754 .filter(|_| has_row_limit)
14755 .map(|(ix, _)| ix)
14756 .fuse()
14757 .peekable();
14758
14759 for (quote_ix, _) in diagnostic
14760 .message
14761 .match_indices('`')
14762 .chain([(diagnostic.message.len(), "")])
14763 {
14764 let mut first_newline_ix = None;
14765 let mut last_newline_ix = None;
14766 while let Some(newline_ix) = newline_indices.peek() {
14767 if *newline_ix < quote_ix {
14768 if first_newline_ix.is_none() {
14769 first_newline_ix = Some(*newline_ix);
14770 }
14771 last_newline_ix = Some(*newline_ix);
14772
14773 if let Some(rows_left) = &mut max_message_rows {
14774 if *rows_left == 0 {
14775 break;
14776 } else {
14777 *rows_left -= 1;
14778 }
14779 }
14780 let _ = newline_indices.next();
14781 } else {
14782 break;
14783 }
14784 }
14785 let prev_len = text_without_backticks.len();
14786 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14787 text_without_backticks.push_str(new_text);
14788 if in_code_block {
14789 code_ranges.push(prev_len..text_without_backticks.len());
14790 }
14791 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14792 in_code_block = !in_code_block;
14793 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14794 text_without_backticks.push_str("...");
14795 break;
14796 }
14797 }
14798
14799 (text_without_backticks.into(), code_ranges)
14800}
14801
14802fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14803 match severity {
14804 DiagnosticSeverity::ERROR => colors.error,
14805 DiagnosticSeverity::WARNING => colors.warning,
14806 DiagnosticSeverity::INFORMATION => colors.info,
14807 DiagnosticSeverity::HINT => colors.info,
14808 _ => colors.ignored,
14809 }
14810}
14811
14812pub fn styled_runs_for_code_label<'a>(
14813 label: &'a CodeLabel,
14814 syntax_theme: &'a theme::SyntaxTheme,
14815) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14816 let fade_out = HighlightStyle {
14817 fade_out: Some(0.35),
14818 ..Default::default()
14819 };
14820
14821 let mut prev_end = label.filter_range.end;
14822 label
14823 .runs
14824 .iter()
14825 .enumerate()
14826 .flat_map(move |(ix, (range, highlight_id))| {
14827 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14828 style
14829 } else {
14830 return Default::default();
14831 };
14832 let mut muted_style = style;
14833 muted_style.highlight(fade_out);
14834
14835 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14836 if range.start >= label.filter_range.end {
14837 if range.start > prev_end {
14838 runs.push((prev_end..range.start, fade_out));
14839 }
14840 runs.push((range.clone(), muted_style));
14841 } else if range.end <= label.filter_range.end {
14842 runs.push((range.clone(), style));
14843 } else {
14844 runs.push((range.start..label.filter_range.end, style));
14845 runs.push((label.filter_range.end..range.end, muted_style));
14846 }
14847 prev_end = cmp::max(prev_end, range.end);
14848
14849 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14850 runs.push((prev_end..label.text.len(), fade_out));
14851 }
14852
14853 runs
14854 })
14855}
14856
14857pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14858 let mut prev_index = 0;
14859 let mut prev_codepoint: Option<char> = None;
14860 text.char_indices()
14861 .chain([(text.len(), '\0')])
14862 .filter_map(move |(index, codepoint)| {
14863 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14864 let is_boundary = index == text.len()
14865 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14866 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14867 if is_boundary {
14868 let chunk = &text[prev_index..index];
14869 prev_index = index;
14870 Some(chunk)
14871 } else {
14872 None
14873 }
14874 })
14875}
14876
14877pub trait RangeToAnchorExt: Sized {
14878 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14879
14880 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14881 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14882 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14883 }
14884}
14885
14886impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14887 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14888 let start_offset = self.start.to_offset(snapshot);
14889 let end_offset = self.end.to_offset(snapshot);
14890 if start_offset == end_offset {
14891 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14892 } else {
14893 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14894 }
14895 }
14896}
14897
14898pub trait RowExt {
14899 fn as_f32(&self) -> f32;
14900
14901 fn next_row(&self) -> Self;
14902
14903 fn previous_row(&self) -> Self;
14904
14905 fn minus(&self, other: Self) -> u32;
14906}
14907
14908impl RowExt for DisplayRow {
14909 fn as_f32(&self) -> f32 {
14910 self.0 as f32
14911 }
14912
14913 fn next_row(&self) -> Self {
14914 Self(self.0 + 1)
14915 }
14916
14917 fn previous_row(&self) -> Self {
14918 Self(self.0.saturating_sub(1))
14919 }
14920
14921 fn minus(&self, other: Self) -> u32 {
14922 self.0 - other.0
14923 }
14924}
14925
14926impl RowExt for MultiBufferRow {
14927 fn as_f32(&self) -> f32 {
14928 self.0 as f32
14929 }
14930
14931 fn next_row(&self) -> Self {
14932 Self(self.0 + 1)
14933 }
14934
14935 fn previous_row(&self) -> Self {
14936 Self(self.0.saturating_sub(1))
14937 }
14938
14939 fn minus(&self, other: Self) -> u32 {
14940 self.0 - other.0
14941 }
14942}
14943
14944trait RowRangeExt {
14945 type Row;
14946
14947 fn len(&self) -> usize;
14948
14949 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14950}
14951
14952impl RowRangeExt for Range<MultiBufferRow> {
14953 type Row = MultiBufferRow;
14954
14955 fn len(&self) -> usize {
14956 (self.end.0 - self.start.0) as usize
14957 }
14958
14959 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14960 (self.start.0..self.end.0).map(MultiBufferRow)
14961 }
14962}
14963
14964impl RowRangeExt for Range<DisplayRow> {
14965 type Row = DisplayRow;
14966
14967 fn len(&self) -> usize {
14968 (self.end.0 - self.start.0) as usize
14969 }
14970
14971 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14972 (self.start.0..self.end.0).map(DisplayRow)
14973 }
14974}
14975
14976fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14977 if hunk.diff_base_byte_range.is_empty() {
14978 DiffHunkStatus::Added
14979 } else if hunk.row_range.is_empty() {
14980 DiffHunkStatus::Removed
14981 } else {
14982 DiffHunkStatus::Modified
14983 }
14984}
14985
14986/// If select range has more than one line, we
14987/// just point the cursor to range.start.
14988fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14989 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14990 range
14991 } else {
14992 range.start..range.start
14993 }
14994}
14995
14996pub struct KillRing(ClipboardItem);
14997impl Global for KillRing {}
14998
14999const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);