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 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 lsp_store::{FormatTarget, FormatTrigger, OpenLspBufferHandle},
132 project_settings::{GitGutterSetting, ProjectSettings},
133 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Location, LocationLink,
134 LspStore, Project, ProjectItem, ProjectTransaction, TaskSourceKind,
135};
136use rand::prelude::*;
137use rpc::{proto::*, ErrorExt};
138use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
139use selections_collection::{
140 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
141};
142use serde::{Deserialize, Serialize};
143use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
144use smallvec::SmallVec;
145use snippet::Snippet;
146use std::{
147 any::TypeId,
148 borrow::Cow,
149 cell::RefCell,
150 cmp::{self, Ordering, Reverse},
151 mem,
152 num::NonZeroU32,
153 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
154 path::{Path, PathBuf},
155 rc::Rc,
156 sync::Arc,
157 time::{Duration, Instant},
158};
159pub use sum_tree::Bias;
160use sum_tree::TreeMap;
161use text::{BufferId, OffsetUtf16, Rope};
162use theme::{
163 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
164 ThemeColors, ThemeSettings,
165};
166use ui::{
167 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
168 PopoverMenuHandle, Tooltip,
169};
170use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
171use workspace::item::{ItemHandle, PreviewTabsSettings};
172use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
173use workspace::{
174 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
175};
176use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
177
178use crate::hover_links::{find_url, find_url_from_range};
179use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
180
181pub const FILE_HEADER_HEIGHT: u32 = 2;
182pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
183pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
184pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
185const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
186const MAX_LINE_LEN: usize = 1024;
187const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
188const MAX_SELECTION_HISTORY_LEN: usize = 1024;
189pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
190#[doc(hidden)]
191pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
192
193pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
194pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
195
196pub fn render_parsed_markdown(
197 element_id: impl Into<ElementId>,
198 parsed: &language::ParsedMarkdown,
199 editor_style: &EditorStyle,
200 workspace: Option<WeakView<Workspace>>,
201 cx: &mut WindowContext,
202) -> InteractiveText {
203 let code_span_background_color = cx
204 .theme()
205 .colors()
206 .editor_document_highlight_read_background;
207
208 let highlights = gpui::combine_highlights(
209 parsed.highlights.iter().filter_map(|(range, highlight)| {
210 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
211 Some((range.clone(), highlight))
212 }),
213 parsed
214 .regions
215 .iter()
216 .zip(&parsed.region_ranges)
217 .filter_map(|(region, range)| {
218 if region.code {
219 Some((
220 range.clone(),
221 HighlightStyle {
222 background_color: Some(code_span_background_color),
223 ..Default::default()
224 },
225 ))
226 } else {
227 None
228 }
229 }),
230 );
231
232 let mut links = Vec::new();
233 let mut link_ranges = Vec::new();
234 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
235 if let Some(link) = region.link.clone() {
236 links.push(link);
237 link_ranges.push(range.clone());
238 }
239 }
240
241 InteractiveText::new(
242 element_id,
243 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
244 )
245 .on_click(link_ranges, move |clicked_range_ix, cx| {
246 match &links[clicked_range_ix] {
247 markdown::Link::Web { url } => cx.open_url(url),
248 markdown::Link::Path { path } => {
249 if let Some(workspace) = &workspace {
250 _ = workspace.update(cx, |workspace, cx| {
251 workspace.open_abs_path(path.clone(), false, cx).detach();
252 });
253 }
254 }
255 }
256 })
257}
258
259#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
260pub(crate) enum InlayId {
261 InlineCompletion(usize),
262 Hint(usize),
263}
264
265impl InlayId {
266 fn id(&self) -> usize {
267 match self {
268 Self::InlineCompletion(id) => *id,
269 Self::Hint(id) => *id,
270 }
271 }
272}
273
274enum DiffRowHighlight {}
275enum DocumentHighlightRead {}
276enum DocumentHighlightWrite {}
277enum InputComposition {}
278
279#[derive(Debug, Copy, Clone, PartialEq, Eq)]
280pub enum Navigated {
281 Yes,
282 No,
283}
284
285impl Navigated {
286 pub fn from_bool(yes: bool) -> Navigated {
287 if yes {
288 Navigated::Yes
289 } else {
290 Navigated::No
291 }
292 }
293}
294
295pub fn init_settings(cx: &mut AppContext) {
296 EditorSettings::register(cx);
297}
298
299pub fn init(cx: &mut AppContext) {
300 init_settings(cx);
301
302 workspace::register_project_item::<Editor>(cx);
303 workspace::FollowableViewRegistry::register::<Editor>(cx);
304 workspace::register_serializable_item::<Editor>(cx);
305
306 cx.observe_new_views(
307 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
308 workspace.register_action(Editor::new_file);
309 workspace.register_action(Editor::new_file_vertical);
310 workspace.register_action(Editor::new_file_horizontal);
311 },
312 )
313 .detach();
314
315 cx.on_action(move |_: &workspace::NewFile, cx| {
316 let app_state = workspace::AppState::global(cx);
317 if let Some(app_state) = app_state.upgrade() {
318 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
319 Editor::new_file(workspace, &Default::default(), cx)
320 })
321 .detach();
322 }
323 });
324 cx.on_action(move |_: &workspace::NewWindow, cx| {
325 let app_state = workspace::AppState::global(cx);
326 if let Some(app_state) = app_state.upgrade() {
327 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
328 Editor::new_file(workspace, &Default::default(), cx)
329 })
330 .detach();
331 }
332 });
333 git::project_diff::init(cx);
334}
335
336pub struct SearchWithinRange;
337
338trait InvalidationRegion {
339 fn ranges(&self) -> &[Range<Anchor>];
340}
341
342#[derive(Clone, Debug, PartialEq)]
343pub enum SelectPhase {
344 Begin {
345 position: DisplayPoint,
346 add: bool,
347 click_count: usize,
348 },
349 BeginColumnar {
350 position: DisplayPoint,
351 reset: bool,
352 goal_column: u32,
353 },
354 Extend {
355 position: DisplayPoint,
356 click_count: usize,
357 },
358 Update {
359 position: DisplayPoint,
360 goal_column: u32,
361 scroll_delta: gpui::Point<f32>,
362 },
363 End,
364}
365
366#[derive(Clone, Debug)]
367pub enum SelectMode {
368 Character,
369 Word(Range<Anchor>),
370 Line(Range<Anchor>),
371 All,
372}
373
374#[derive(Copy, Clone, PartialEq, Eq, Debug)]
375pub enum EditorMode {
376 SingleLine { auto_width: bool },
377 AutoHeight { max_lines: usize },
378 Full,
379}
380
381#[derive(Copy, Clone, Debug)]
382pub enum SoftWrap {
383 /// Prefer not to wrap at all.
384 ///
385 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
386 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
387 GitDiff,
388 /// Prefer a single line generally, unless an overly long line is encountered.
389 None,
390 /// Soft wrap lines that exceed the editor width.
391 EditorWidth,
392 /// Soft wrap lines at the preferred line length.
393 Column(u32),
394 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
395 Bounded(u32),
396}
397
398#[derive(Clone)]
399pub struct EditorStyle {
400 pub background: Hsla,
401 pub local_player: PlayerColor,
402 pub text: TextStyle,
403 pub scrollbar_width: Pixels,
404 pub syntax: Arc<SyntaxTheme>,
405 pub status: StatusColors,
406 pub inlay_hints_style: HighlightStyle,
407 pub inline_completion_styles: InlineCompletionStyles,
408 pub unnecessary_code_fade: f32,
409}
410
411impl Default for EditorStyle {
412 fn default() -> Self {
413 Self {
414 background: Hsla::default(),
415 local_player: PlayerColor::default(),
416 text: TextStyle::default(),
417 scrollbar_width: Pixels::default(),
418 syntax: Default::default(),
419 // HACK: Status colors don't have a real default.
420 // We should look into removing the status colors from the editor
421 // style and retrieve them directly from the theme.
422 status: StatusColors::dark(),
423 inlay_hints_style: HighlightStyle::default(),
424 inline_completion_styles: InlineCompletionStyles {
425 insertion: HighlightStyle::default(),
426 whitespace: HighlightStyle::default(),
427 },
428 unnecessary_code_fade: Default::default(),
429 }
430 }
431}
432
433pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
434 let show_background = language_settings::language_settings(None, None, cx)
435 .inlay_hints
436 .show_background;
437
438 HighlightStyle {
439 color: Some(cx.theme().status().hint),
440 background_color: show_background.then(|| cx.theme().status().hint_background),
441 ..HighlightStyle::default()
442 }
443}
444
445pub fn make_suggestion_styles(cx: &WindowContext) -> InlineCompletionStyles {
446 InlineCompletionStyles {
447 insertion: HighlightStyle {
448 color: Some(cx.theme().status().predictive),
449 ..HighlightStyle::default()
450 },
451 whitespace: HighlightStyle {
452 background_color: Some(cx.theme().status().created_background),
453 ..HighlightStyle::default()
454 },
455 }
456}
457
458type CompletionId = usize;
459
460enum InlineCompletion {
461 Edit(Vec<(Range<Anchor>, String)>),
462 Move(Anchor),
463}
464
465struct InlineCompletionState {
466 inlay_ids: Vec<InlayId>,
467 completion: InlineCompletion,
468 invalidation_range: Range<Anchor>,
469}
470
471enum InlineCompletionHighlight {}
472
473#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
474struct EditorActionId(usize);
475
476impl EditorActionId {
477 pub fn post_inc(&mut self) -> Self {
478 let answer = self.0;
479
480 *self = Self(answer + 1);
481
482 Self(answer)
483 }
484}
485
486// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
487// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
488
489type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
490type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
491
492#[derive(Default)]
493struct ScrollbarMarkerState {
494 scrollbar_size: Size<Pixels>,
495 dirty: bool,
496 markers: Arc<[PaintQuad]>,
497 pending_refresh: Option<Task<Result<()>>>,
498}
499
500impl ScrollbarMarkerState {
501 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
502 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
503 }
504}
505
506#[derive(Clone, Debug)]
507struct RunnableTasks {
508 templates: Vec<(TaskSourceKind, TaskTemplate)>,
509 offset: MultiBufferOffset,
510 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
511 column: u32,
512 // Values of all named captures, including those starting with '_'
513 extra_variables: HashMap<String, String>,
514 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
515 context_range: Range<BufferOffset>,
516}
517
518impl RunnableTasks {
519 fn resolve<'a>(
520 &'a self,
521 cx: &'a task::TaskContext,
522 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
523 self.templates.iter().filter_map(|(kind, template)| {
524 template
525 .resolve_task(&kind.to_id_base(), Default::default(), cx)
526 .map(|task| (kind.clone(), task))
527 })
528 }
529}
530
531#[derive(Clone)]
532struct ResolvedTasks {
533 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
534 position: Anchor,
535}
536#[derive(Copy, Clone, Debug)]
537struct MultiBufferOffset(usize);
538#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
539struct BufferOffset(usize);
540
541// Addons allow storing per-editor state in other crates (e.g. Vim)
542pub trait Addon: 'static {
543 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
544
545 fn to_any(&self) -> &dyn std::any::Any;
546}
547
548#[derive(Debug, Copy, Clone, PartialEq, Eq)]
549pub enum IsVimMode {
550 Yes,
551 No,
552}
553
554/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
555///
556/// See the [module level documentation](self) for more information.
557pub struct Editor {
558 focus_handle: FocusHandle,
559 last_focused_descendant: Option<WeakFocusHandle>,
560 /// The text buffer being edited
561 buffer: Model<MultiBuffer>,
562 /// Map of how text in the buffer should be displayed.
563 /// Handles soft wraps, folds, fake inlay text insertions, etc.
564 pub display_map: Model<DisplayMap>,
565 pub selections: SelectionsCollection,
566 pub scroll_manager: ScrollManager,
567 /// When inline assist editors are linked, they all render cursors because
568 /// typing enters text into each of them, even the ones that aren't focused.
569 pub(crate) show_cursor_when_unfocused: bool,
570 columnar_selection_tail: Option<Anchor>,
571 add_selections_state: Option<AddSelectionsState>,
572 select_next_state: Option<SelectNextState>,
573 select_prev_state: Option<SelectNextState>,
574 selection_history: SelectionHistory,
575 autoclose_regions: Vec<AutocloseRegion>,
576 snippet_stack: InvalidationStack<SnippetState>,
577 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
578 ime_transaction: Option<TransactionId>,
579 active_diagnostics: Option<ActiveDiagnosticGroup>,
580 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
581
582 project: Option<Model<Project>>,
583 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
584 completion_provider: Option<Box<dyn CompletionProvider>>,
585 collaboration_hub: Option<Box<dyn CollaborationHub>>,
586 blink_manager: Model<BlinkManager>,
587 show_cursor_names: bool,
588 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
589 pub show_local_selections: bool,
590 mode: EditorMode,
591 show_breadcrumbs: bool,
592 show_gutter: bool,
593 show_line_numbers: Option<bool>,
594 use_relative_line_numbers: Option<bool>,
595 show_git_diff_gutter: Option<bool>,
596 show_code_actions: Option<bool>,
597 show_runnables: Option<bool>,
598 show_wrap_guides: Option<bool>,
599 show_indent_guides: Option<bool>,
600 placeholder_text: Option<Arc<str>>,
601 highlight_order: usize,
602 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
603 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
604 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
605 scrollbar_marker_state: ScrollbarMarkerState,
606 active_indent_guides_state: ActiveIndentGuidesState,
607 nav_history: Option<ItemNavHistory>,
608 context_menu: RefCell<Option<CodeContextMenu>>,
609 mouse_context_menu: Option<MouseContextMenu>,
610 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
611 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
612 signature_help_state: SignatureHelpState,
613 auto_signature_help: Option<bool>,
614 find_all_references_task_sources: Vec<Anchor>,
615 next_completion_id: CompletionId,
616 available_code_actions: Option<(Location, Rc<[AvailableCodeAction]>)>,
617 code_actions_task: Option<Task<Result<()>>>,
618 document_highlights_task: Option<Task<()>>,
619 linked_editing_range_task: Option<Task<Option<()>>>,
620 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
621 pending_rename: Option<RenameState>,
622 searchable: bool,
623 cursor_shape: CursorShape,
624 current_line_highlight: Option<CurrentLineHighlight>,
625 collapse_matches: bool,
626 autoindent_mode: Option<AutoindentMode>,
627 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
628 input_enabled: bool,
629 use_modal_editing: bool,
630 read_only: bool,
631 leader_peer_id: Option<PeerId>,
632 remote_id: Option<ViewId>,
633 hover_state: HoverState,
634 gutter_hovered: bool,
635 hovered_link_state: Option<HoveredLinkState>,
636 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
637 code_action_providers: Vec<Rc<dyn CodeActionProvider>>,
638 active_inline_completion: Option<InlineCompletionState>,
639 // enable_inline_completions is a switch that Vim can use to disable
640 // inline completions based on its mode.
641 enable_inline_completions: bool,
642 show_inline_completions_override: Option<bool>,
643 inlay_hint_cache: InlayHintCache,
644 diff_map: DiffMap,
645 next_inlay_id: usize,
646 _subscriptions: Vec<Subscription>,
647 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
648 gutter_dimensions: GutterDimensions,
649 style: Option<EditorStyle>,
650 text_style_refinement: Option<TextStyleRefinement>,
651 next_editor_action_id: EditorActionId,
652 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
653 use_autoclose: bool,
654 use_auto_surround: bool,
655 auto_replace_emoji_shortcode: bool,
656 show_git_blame_gutter: bool,
657 show_git_blame_inline: bool,
658 show_git_blame_inline_delay_task: Option<Task<()>>,
659 git_blame_inline_enabled: bool,
660 serialize_dirty_buffers: bool,
661 show_selection_menu: Option<bool>,
662 blame: Option<Model<GitBlame>>,
663 blame_subscription: Option<Subscription>,
664 custom_context_menu: Option<
665 Box<
666 dyn 'static
667 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
668 >,
669 >,
670 last_bounds: Option<Bounds<Pixels>>,
671 expect_bounds_change: Option<Bounds<Pixels>>,
672 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
673 tasks_update_task: Option<Task<()>>,
674 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
675 breadcrumb_header: Option<String>,
676 focused_block: Option<FocusedBlock>,
677 next_scroll_position: NextScrollCursorCenterTopBottom,
678 addons: HashMap<TypeId, Box<dyn Addon>>,
679 registered_buffers: HashMap<BufferId, OpenLspBufferHandle>,
680 toggle_fold_multiple_buffers: Task<()>,
681 _scroll_cursor_center_top_bottom_task: Task<()>,
682}
683
684#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
685enum NextScrollCursorCenterTopBottom {
686 #[default]
687 Center,
688 Top,
689 Bottom,
690}
691
692impl NextScrollCursorCenterTopBottom {
693 fn next(&self) -> Self {
694 match self {
695 Self::Center => Self::Top,
696 Self::Top => Self::Bottom,
697 Self::Bottom => Self::Center,
698 }
699 }
700}
701
702#[derive(Clone)]
703pub struct EditorSnapshot {
704 pub mode: EditorMode,
705 show_gutter: bool,
706 show_line_numbers: Option<bool>,
707 show_git_diff_gutter: Option<bool>,
708 show_code_actions: Option<bool>,
709 show_runnables: Option<bool>,
710 git_blame_gutter_max_author_length: Option<usize>,
711 pub display_snapshot: DisplaySnapshot,
712 pub placeholder_text: Option<Arc<str>>,
713 diff_map: DiffMapSnapshot,
714 is_focused: bool,
715 scroll_anchor: ScrollAnchor,
716 ongoing_scroll: OngoingScroll,
717 current_line_highlight: CurrentLineHighlight,
718 gutter_hovered: bool,
719}
720
721const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
722
723#[derive(Default, Debug, Clone, Copy)]
724pub struct GutterDimensions {
725 pub left_padding: Pixels,
726 pub right_padding: Pixels,
727 pub width: Pixels,
728 pub margin: Pixels,
729 pub git_blame_entries_width: Option<Pixels>,
730}
731
732impl GutterDimensions {
733 /// The full width of the space taken up by the gutter.
734 pub fn full_width(&self) -> Pixels {
735 self.margin + self.width
736 }
737
738 /// The width of the space reserved for the fold indicators,
739 /// use alongside 'justify_end' and `gutter_width` to
740 /// right align content with the line numbers
741 pub fn fold_area_width(&self) -> Pixels {
742 self.margin + self.right_padding
743 }
744}
745
746#[derive(Debug)]
747pub struct RemoteSelection {
748 pub replica_id: ReplicaId,
749 pub selection: Selection<Anchor>,
750 pub cursor_shape: CursorShape,
751 pub peer_id: PeerId,
752 pub line_mode: bool,
753 pub participant_index: Option<ParticipantIndex>,
754 pub user_name: Option<SharedString>,
755}
756
757#[derive(Clone, Debug)]
758struct SelectionHistoryEntry {
759 selections: Arc<[Selection<Anchor>]>,
760 select_next_state: Option<SelectNextState>,
761 select_prev_state: Option<SelectNextState>,
762 add_selections_state: Option<AddSelectionsState>,
763}
764
765enum SelectionHistoryMode {
766 Normal,
767 Undoing,
768 Redoing,
769}
770
771#[derive(Clone, PartialEq, Eq, Hash)]
772struct HoveredCursor {
773 replica_id: u16,
774 selection_id: usize,
775}
776
777impl Default for SelectionHistoryMode {
778 fn default() -> Self {
779 Self::Normal
780 }
781}
782
783#[derive(Default)]
784struct SelectionHistory {
785 #[allow(clippy::type_complexity)]
786 selections_by_transaction:
787 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
788 mode: SelectionHistoryMode,
789 undo_stack: VecDeque<SelectionHistoryEntry>,
790 redo_stack: VecDeque<SelectionHistoryEntry>,
791}
792
793impl SelectionHistory {
794 fn insert_transaction(
795 &mut self,
796 transaction_id: TransactionId,
797 selections: Arc<[Selection<Anchor>]>,
798 ) {
799 self.selections_by_transaction
800 .insert(transaction_id, (selections, None));
801 }
802
803 #[allow(clippy::type_complexity)]
804 fn transaction(
805 &self,
806 transaction_id: TransactionId,
807 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
808 self.selections_by_transaction.get(&transaction_id)
809 }
810
811 #[allow(clippy::type_complexity)]
812 fn transaction_mut(
813 &mut self,
814 transaction_id: TransactionId,
815 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
816 self.selections_by_transaction.get_mut(&transaction_id)
817 }
818
819 fn push(&mut self, entry: SelectionHistoryEntry) {
820 if !entry.selections.is_empty() {
821 match self.mode {
822 SelectionHistoryMode::Normal => {
823 self.push_undo(entry);
824 self.redo_stack.clear();
825 }
826 SelectionHistoryMode::Undoing => self.push_redo(entry),
827 SelectionHistoryMode::Redoing => self.push_undo(entry),
828 }
829 }
830 }
831
832 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
833 if self
834 .undo_stack
835 .back()
836 .map_or(true, |e| e.selections != entry.selections)
837 {
838 self.undo_stack.push_back(entry);
839 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
840 self.undo_stack.pop_front();
841 }
842 }
843 }
844
845 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
846 if self
847 .redo_stack
848 .back()
849 .map_or(true, |e| e.selections != entry.selections)
850 {
851 self.redo_stack.push_back(entry);
852 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
853 self.redo_stack.pop_front();
854 }
855 }
856 }
857}
858
859struct RowHighlight {
860 index: usize,
861 range: Range<Anchor>,
862 color: Hsla,
863 should_autoscroll: bool,
864}
865
866#[derive(Clone, Debug)]
867struct AddSelectionsState {
868 above: bool,
869 stack: Vec<usize>,
870}
871
872#[derive(Clone)]
873struct SelectNextState {
874 query: AhoCorasick,
875 wordwise: bool,
876 done: bool,
877}
878
879impl std::fmt::Debug for SelectNextState {
880 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
881 f.debug_struct(std::any::type_name::<Self>())
882 .field("wordwise", &self.wordwise)
883 .field("done", &self.done)
884 .finish()
885 }
886}
887
888#[derive(Debug)]
889struct AutocloseRegion {
890 selection_id: usize,
891 range: Range<Anchor>,
892 pair: BracketPair,
893}
894
895#[derive(Debug)]
896struct SnippetState {
897 ranges: Vec<Vec<Range<Anchor>>>,
898 active_index: usize,
899 choices: Vec<Option<Vec<String>>>,
900}
901
902#[doc(hidden)]
903pub struct RenameState {
904 pub range: Range<Anchor>,
905 pub old_name: Arc<str>,
906 pub editor: View<Editor>,
907 block_id: CustomBlockId,
908}
909
910struct InvalidationStack<T>(Vec<T>);
911
912struct RegisteredInlineCompletionProvider {
913 provider: Arc<dyn InlineCompletionProviderHandle>,
914 _subscription: Subscription,
915}
916
917#[derive(Debug)]
918struct ActiveDiagnosticGroup {
919 primary_range: Range<Anchor>,
920 primary_message: String,
921 group_id: usize,
922 blocks: HashMap<CustomBlockId, Diagnostic>,
923 is_valid: bool,
924}
925
926#[derive(Serialize, Deserialize, Clone, Debug)]
927pub struct ClipboardSelection {
928 pub len: usize,
929 pub is_entire_line: bool,
930 pub first_line_indent: u32,
931}
932
933#[derive(Debug)]
934pub(crate) struct NavigationData {
935 cursor_anchor: Anchor,
936 cursor_position: Point,
937 scroll_anchor: ScrollAnchor,
938 scroll_top_row: u32,
939}
940
941#[derive(Debug, Clone, Copy, PartialEq, Eq)]
942pub enum GotoDefinitionKind {
943 Symbol,
944 Declaration,
945 Type,
946 Implementation,
947}
948
949#[derive(Debug, Clone)]
950enum InlayHintRefreshReason {
951 Toggle(bool),
952 SettingsChange(InlayHintSettings),
953 NewLinesShown,
954 BufferEdited(HashSet<Arc<Language>>),
955 RefreshRequested,
956 ExcerptsRemoved(Vec<ExcerptId>),
957}
958
959impl InlayHintRefreshReason {
960 fn description(&self) -> &'static str {
961 match self {
962 Self::Toggle(_) => "toggle",
963 Self::SettingsChange(_) => "settings change",
964 Self::NewLinesShown => "new lines shown",
965 Self::BufferEdited(_) => "buffer edited",
966 Self::RefreshRequested => "refresh requested",
967 Self::ExcerptsRemoved(_) => "excerpts removed",
968 }
969 }
970}
971
972pub(crate) struct FocusedBlock {
973 id: BlockId,
974 focus_handle: WeakFocusHandle,
975}
976
977#[derive(Clone)]
978struct JumpData {
979 excerpt_id: ExcerptId,
980 position: Point,
981 anchor: text::Anchor,
982 path: Option<project::ProjectPath>,
983 line_offset_from_top: u32,
984}
985
986impl Editor {
987 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
988 let buffer = cx.new_model(|cx| Buffer::local("", cx));
989 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
990 Self::new(
991 EditorMode::SingleLine { auto_width: false },
992 buffer,
993 None,
994 false,
995 cx,
996 )
997 }
998
999 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1000 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1001 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1002 Self::new(EditorMode::Full, buffer, None, false, cx)
1003 }
1004
1005 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1006 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1007 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1008 Self::new(
1009 EditorMode::SingleLine { auto_width: true },
1010 buffer,
1011 None,
1012 false,
1013 cx,
1014 )
1015 }
1016
1017 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1018 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1019 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1020 Self::new(
1021 EditorMode::AutoHeight { max_lines },
1022 buffer,
1023 None,
1024 false,
1025 cx,
1026 )
1027 }
1028
1029 pub fn for_buffer(
1030 buffer: Model<Buffer>,
1031 project: Option<Model<Project>>,
1032 cx: &mut ViewContext<Self>,
1033 ) -> Self {
1034 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1035 Self::new(EditorMode::Full, buffer, project, false, cx)
1036 }
1037
1038 pub fn for_multibuffer(
1039 buffer: Model<MultiBuffer>,
1040 project: Option<Model<Project>>,
1041 show_excerpt_controls: bool,
1042 cx: &mut ViewContext<Self>,
1043 ) -> Self {
1044 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1045 }
1046
1047 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1048 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1049 let mut clone = Self::new(
1050 self.mode,
1051 self.buffer.clone(),
1052 self.project.clone(),
1053 show_excerpt_controls,
1054 cx,
1055 );
1056 self.display_map.update(cx, |display_map, cx| {
1057 let snapshot = display_map.snapshot(cx);
1058 clone.display_map.update(cx, |display_map, cx| {
1059 display_map.set_state(&snapshot, cx);
1060 });
1061 });
1062 clone.selections.clone_state(&self.selections);
1063 clone.scroll_manager.clone_state(&self.scroll_manager);
1064 clone.searchable = self.searchable;
1065 clone
1066 }
1067
1068 pub fn new(
1069 mode: EditorMode,
1070 buffer: Model<MultiBuffer>,
1071 project: Option<Model<Project>>,
1072 show_excerpt_controls: bool,
1073 cx: &mut ViewContext<Self>,
1074 ) -> Self {
1075 let style = cx.text_style();
1076 let font_size = style.font_size.to_pixels(cx.rem_size());
1077 let editor = cx.view().downgrade();
1078 let fold_placeholder = FoldPlaceholder {
1079 constrain_width: true,
1080 render: Arc::new(move |fold_id, fold_range, cx| {
1081 let editor = editor.clone();
1082 div()
1083 .id(fold_id)
1084 .bg(cx.theme().colors().ghost_element_background)
1085 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1086 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1087 .rounded_sm()
1088 .size_full()
1089 .cursor_pointer()
1090 .child("⋯")
1091 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1092 .on_click(move |_, cx| {
1093 editor
1094 .update(cx, |editor, cx| {
1095 editor.unfold_ranges(
1096 &[fold_range.start..fold_range.end],
1097 true,
1098 false,
1099 cx,
1100 );
1101 cx.stop_propagation();
1102 })
1103 .ok();
1104 })
1105 .into_any()
1106 }),
1107 merge_adjacent: true,
1108 ..Default::default()
1109 };
1110 let display_map = cx.new_model(|cx| {
1111 DisplayMap::new(
1112 buffer.clone(),
1113 style.font(),
1114 font_size,
1115 None,
1116 show_excerpt_controls,
1117 FILE_HEADER_HEIGHT,
1118 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1119 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1120 fold_placeholder,
1121 cx,
1122 )
1123 });
1124
1125 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1126
1127 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1128
1129 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1130 .then(|| language_settings::SoftWrap::None);
1131
1132 let mut project_subscriptions = Vec::new();
1133 if mode == EditorMode::Full {
1134 if let Some(project) = project.as_ref() {
1135 if buffer.read(cx).is_singleton() {
1136 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1137 cx.emit(EditorEvent::TitleChanged);
1138 }));
1139 }
1140 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1141 if let project::Event::RefreshInlayHints = event {
1142 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1143 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1144 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1145 let focus_handle = editor.focus_handle(cx);
1146 if focus_handle.is_focused(cx) {
1147 let snapshot = buffer.read(cx).snapshot();
1148 for (range, snippet) in snippet_edits {
1149 let editor_range =
1150 language::range_from_lsp(*range).to_offset(&snapshot);
1151 editor
1152 .insert_snippet(&[editor_range], snippet.clone(), cx)
1153 .ok();
1154 }
1155 }
1156 }
1157 }
1158 }));
1159 if let Some(task_inventory) = project
1160 .read(cx)
1161 .task_store()
1162 .read(cx)
1163 .task_inventory()
1164 .cloned()
1165 {
1166 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1167 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1168 }));
1169 }
1170 }
1171 }
1172
1173 let buffer_snapshot = buffer.read(cx).snapshot(cx);
1174
1175 let inlay_hint_settings =
1176 inlay_hint_settings(selections.newest_anchor().head(), &buffer_snapshot, cx);
1177 let focus_handle = cx.focus_handle();
1178 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1179 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1180 .detach();
1181 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1182 .detach();
1183 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1184
1185 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1186 Some(false)
1187 } else {
1188 None
1189 };
1190
1191 let mut code_action_providers = Vec::new();
1192 if let Some(project) = project.clone() {
1193 get_unstaged_changes_for_buffers(&project, buffer.read(cx).all_buffers(), cx);
1194 code_action_providers.push(Rc::new(project) as Rc<_>);
1195 }
1196
1197 let mut this = Self {
1198 focus_handle,
1199 show_cursor_when_unfocused: false,
1200 last_focused_descendant: None,
1201 buffer: buffer.clone(),
1202 display_map: display_map.clone(),
1203 selections,
1204 scroll_manager: ScrollManager::new(cx),
1205 columnar_selection_tail: None,
1206 add_selections_state: None,
1207 select_next_state: None,
1208 select_prev_state: None,
1209 selection_history: Default::default(),
1210 autoclose_regions: Default::default(),
1211 snippet_stack: Default::default(),
1212 select_larger_syntax_node_stack: Vec::new(),
1213 ime_transaction: Default::default(),
1214 active_diagnostics: None,
1215 soft_wrap_mode_override,
1216 completion_provider: project.clone().map(|project| Box::new(project) as _),
1217 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1218 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1219 project,
1220 blink_manager: blink_manager.clone(),
1221 show_local_selections: true,
1222 mode,
1223 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1224 show_gutter: mode == EditorMode::Full,
1225 show_line_numbers: None,
1226 use_relative_line_numbers: None,
1227 show_git_diff_gutter: None,
1228 show_code_actions: None,
1229 show_runnables: None,
1230 show_wrap_guides: None,
1231 show_indent_guides,
1232 placeholder_text: None,
1233 highlight_order: 0,
1234 highlighted_rows: HashMap::default(),
1235 background_highlights: Default::default(),
1236 gutter_highlights: TreeMap::default(),
1237 scrollbar_marker_state: ScrollbarMarkerState::default(),
1238 active_indent_guides_state: ActiveIndentGuidesState::default(),
1239 nav_history: None,
1240 context_menu: RefCell::new(None),
1241 mouse_context_menu: None,
1242 hunk_controls_menu_handle: PopoverMenuHandle::default(),
1243 completion_tasks: Default::default(),
1244 signature_help_state: SignatureHelpState::default(),
1245 auto_signature_help: None,
1246 find_all_references_task_sources: Vec::new(),
1247 next_completion_id: 0,
1248 next_inlay_id: 0,
1249 code_action_providers,
1250 available_code_actions: Default::default(),
1251 code_actions_task: Default::default(),
1252 document_highlights_task: Default::default(),
1253 linked_editing_range_task: Default::default(),
1254 pending_rename: Default::default(),
1255 searchable: true,
1256 cursor_shape: EditorSettings::get_global(cx)
1257 .cursor_shape
1258 .unwrap_or_default(),
1259 current_line_highlight: None,
1260 autoindent_mode: Some(AutoindentMode::EachLine),
1261 collapse_matches: false,
1262 workspace: None,
1263 input_enabled: true,
1264 use_modal_editing: mode == EditorMode::Full,
1265 read_only: false,
1266 use_autoclose: true,
1267 use_auto_surround: true,
1268 auto_replace_emoji_shortcode: false,
1269 leader_peer_id: None,
1270 remote_id: None,
1271 hover_state: Default::default(),
1272 hovered_link_state: Default::default(),
1273 inline_completion_provider: None,
1274 active_inline_completion: None,
1275 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1276 diff_map: DiffMap::default(),
1277 gutter_hovered: false,
1278 pixel_position_of_newest_cursor: None,
1279 last_bounds: None,
1280 expect_bounds_change: None,
1281 gutter_dimensions: GutterDimensions::default(),
1282 style: None,
1283 show_cursor_names: false,
1284 hovered_cursors: Default::default(),
1285 next_editor_action_id: EditorActionId::default(),
1286 editor_actions: Rc::default(),
1287 show_inline_completions_override: None,
1288 enable_inline_completions: true,
1289 custom_context_menu: None,
1290 show_git_blame_gutter: false,
1291 show_git_blame_inline: false,
1292 show_selection_menu: None,
1293 show_git_blame_inline_delay_task: None,
1294 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1295 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1296 .session
1297 .restore_unsaved_buffers,
1298 blame: None,
1299 blame_subscription: None,
1300 tasks: Default::default(),
1301 _subscriptions: vec![
1302 cx.observe(&buffer, Self::on_buffer_changed),
1303 cx.subscribe(&buffer, Self::on_buffer_event),
1304 cx.observe(&display_map, Self::on_display_map_changed),
1305 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1306 cx.observe_global::<SettingsStore>(Self::settings_changed),
1307 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1308 cx.observe_window_activation(|editor, cx| {
1309 let active = cx.is_window_active();
1310 editor.blink_manager.update(cx, |blink_manager, cx| {
1311 if active {
1312 blink_manager.enable(cx);
1313 } else {
1314 blink_manager.disable(cx);
1315 }
1316 });
1317 }),
1318 ],
1319 tasks_update_task: None,
1320 linked_edit_ranges: Default::default(),
1321 previous_search_ranges: None,
1322 breadcrumb_header: None,
1323 focused_block: None,
1324 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
1325 addons: HashMap::default(),
1326 registered_buffers: HashMap::default(),
1327 _scroll_cursor_center_top_bottom_task: Task::ready(()),
1328 toggle_fold_multiple_buffers: Task::ready(()),
1329 text_style_refinement: None,
1330 };
1331 this.tasks_update_task = Some(this.refresh_runnables(cx));
1332 this._subscriptions.extend(project_subscriptions);
1333
1334 this.end_selection(cx);
1335 this.scroll_manager.show_scrollbar(cx);
1336
1337 if mode == EditorMode::Full {
1338 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1339 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1340
1341 if this.git_blame_inline_enabled {
1342 this.git_blame_inline_enabled = true;
1343 this.start_git_blame_inline(false, cx);
1344 }
1345
1346 if let Some(buffer) = buffer.read(cx).as_singleton() {
1347 if let Some(project) = this.project.as_ref() {
1348 let lsp_store = project.read(cx).lsp_store();
1349 let handle = lsp_store.update(cx, |lsp_store, cx| {
1350 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1351 });
1352 this.registered_buffers
1353 .insert(buffer.read(cx).remote_id(), handle);
1354 }
1355 }
1356 }
1357
1358 this.report_editor_event("open", None, cx);
1359 this
1360 }
1361
1362 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
1363 self.mouse_context_menu
1364 .as_ref()
1365 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1366 }
1367
1368 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
1369 let mut key_context = KeyContext::new_with_defaults();
1370 key_context.add("Editor");
1371 let mode = match self.mode {
1372 EditorMode::SingleLine { .. } => "single_line",
1373 EditorMode::AutoHeight { .. } => "auto_height",
1374 EditorMode::Full => "full",
1375 };
1376
1377 if EditorSettings::jupyter_enabled(cx) {
1378 key_context.add("jupyter");
1379 }
1380
1381 key_context.set("mode", mode);
1382 if self.pending_rename.is_some() {
1383 key_context.add("renaming");
1384 }
1385 if self.context_menu_visible() {
1386 match self.context_menu.borrow().as_ref() {
1387 Some(CodeContextMenu::Completions(_)) => {
1388 key_context.add("menu");
1389 key_context.add("showing_completions")
1390 }
1391 Some(CodeContextMenu::CodeActions(_)) => {
1392 key_context.add("menu");
1393 key_context.add("showing_code_actions")
1394 }
1395 None => {}
1396 }
1397 }
1398
1399 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
1400 if !self.focus_handle(cx).contains_focused(cx)
1401 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
1402 {
1403 for addon in self.addons.values() {
1404 addon.extend_key_context(&mut key_context, cx)
1405 }
1406 }
1407
1408 if let Some(extension) = self
1409 .buffer
1410 .read(cx)
1411 .as_singleton()
1412 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1413 {
1414 key_context.set("extension", extension.to_string());
1415 }
1416
1417 if self.has_active_inline_completion() {
1418 key_context.add("copilot_suggestion");
1419 key_context.add("inline_completion");
1420 }
1421
1422 if !self
1423 .selections
1424 .disjoint
1425 .iter()
1426 .all(|selection| selection.start == selection.end)
1427 {
1428 key_context.add("selection");
1429 }
1430
1431 key_context
1432 }
1433
1434 pub fn new_file(
1435 workspace: &mut Workspace,
1436 _: &workspace::NewFile,
1437 cx: &mut ViewContext<Workspace>,
1438 ) {
1439 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
1440 "Failed to create buffer",
1441 cx,
1442 |e, _| match e.error_code() {
1443 ErrorCode::RemoteUpgradeRequired => Some(format!(
1444 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1445 e.error_tag("required").unwrap_or("the latest version")
1446 )),
1447 _ => None,
1448 },
1449 );
1450 }
1451
1452 pub fn new_in_workspace(
1453 workspace: &mut Workspace,
1454 cx: &mut ViewContext<Workspace>,
1455 ) -> Task<Result<View<Editor>>> {
1456 let project = workspace.project().clone();
1457 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1458
1459 cx.spawn(|workspace, mut cx| async move {
1460 let buffer = create.await?;
1461 workspace.update(&mut cx, |workspace, cx| {
1462 let editor =
1463 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
1464 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
1465 editor
1466 })
1467 })
1468 }
1469
1470 fn new_file_vertical(
1471 workspace: &mut Workspace,
1472 _: &workspace::NewFileSplitVertical,
1473 cx: &mut ViewContext<Workspace>,
1474 ) {
1475 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
1476 }
1477
1478 fn new_file_horizontal(
1479 workspace: &mut Workspace,
1480 _: &workspace::NewFileSplitHorizontal,
1481 cx: &mut ViewContext<Workspace>,
1482 ) {
1483 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
1484 }
1485
1486 fn new_file_in_direction(
1487 workspace: &mut Workspace,
1488 direction: SplitDirection,
1489 cx: &mut ViewContext<Workspace>,
1490 ) {
1491 let project = workspace.project().clone();
1492 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1493
1494 cx.spawn(|workspace, mut cx| async move {
1495 let buffer = create.await?;
1496 workspace.update(&mut cx, move |workspace, cx| {
1497 workspace.split_item(
1498 direction,
1499 Box::new(
1500 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1501 ),
1502 cx,
1503 )
1504 })?;
1505 anyhow::Ok(())
1506 })
1507 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1508 ErrorCode::RemoteUpgradeRequired => Some(format!(
1509 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1510 e.error_tag("required").unwrap_or("the latest version")
1511 )),
1512 _ => None,
1513 });
1514 }
1515
1516 pub fn leader_peer_id(&self) -> Option<PeerId> {
1517 self.leader_peer_id
1518 }
1519
1520 pub fn buffer(&self) -> &Model<MultiBuffer> {
1521 &self.buffer
1522 }
1523
1524 pub fn workspace(&self) -> Option<View<Workspace>> {
1525 self.workspace.as_ref()?.0.upgrade()
1526 }
1527
1528 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1529 self.buffer().read(cx).title(cx)
1530 }
1531
1532 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1533 let git_blame_gutter_max_author_length = self
1534 .render_git_blame_gutter(cx)
1535 .then(|| {
1536 if let Some(blame) = self.blame.as_ref() {
1537 let max_author_length =
1538 blame.update(cx, |blame, cx| blame.max_author_length(cx));
1539 Some(max_author_length)
1540 } else {
1541 None
1542 }
1543 })
1544 .flatten();
1545
1546 EditorSnapshot {
1547 mode: self.mode,
1548 show_gutter: self.show_gutter,
1549 show_line_numbers: self.show_line_numbers,
1550 show_git_diff_gutter: self.show_git_diff_gutter,
1551 show_code_actions: self.show_code_actions,
1552 show_runnables: self.show_runnables,
1553 git_blame_gutter_max_author_length,
1554 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1555 scroll_anchor: self.scroll_manager.anchor(),
1556 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1557 placeholder_text: self.placeholder_text.clone(),
1558 diff_map: self.diff_map.snapshot(),
1559 is_focused: self.focus_handle.is_focused(cx),
1560 current_line_highlight: self
1561 .current_line_highlight
1562 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
1563 gutter_hovered: self.gutter_hovered,
1564 }
1565 }
1566
1567 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1568 self.buffer.read(cx).language_at(point, cx)
1569 }
1570
1571 pub fn file_at<T: ToOffset>(
1572 &self,
1573 point: T,
1574 cx: &AppContext,
1575 ) -> Option<Arc<dyn language::File>> {
1576 self.buffer.read(cx).read(cx).file_at(point).cloned()
1577 }
1578
1579 pub fn active_excerpt(
1580 &self,
1581 cx: &AppContext,
1582 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1583 self.buffer
1584 .read(cx)
1585 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1586 }
1587
1588 pub fn mode(&self) -> EditorMode {
1589 self.mode
1590 }
1591
1592 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1593 self.collaboration_hub.as_deref()
1594 }
1595
1596 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1597 self.collaboration_hub = Some(hub);
1598 }
1599
1600 pub fn set_custom_context_menu(
1601 &mut self,
1602 f: impl 'static
1603 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1604 ) {
1605 self.custom_context_menu = Some(Box::new(f))
1606 }
1607
1608 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
1609 self.completion_provider = provider;
1610 }
1611
1612 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
1613 self.semantics_provider.clone()
1614 }
1615
1616 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
1617 self.semantics_provider = provider;
1618 }
1619
1620 pub fn set_inline_completion_provider<T>(
1621 &mut self,
1622 provider: Option<Model<T>>,
1623 cx: &mut ViewContext<Self>,
1624 ) where
1625 T: InlineCompletionProvider,
1626 {
1627 self.inline_completion_provider =
1628 provider.map(|provider| RegisteredInlineCompletionProvider {
1629 _subscription: cx.observe(&provider, |this, _, cx| {
1630 if this.focus_handle.is_focused(cx) {
1631 this.update_visible_inline_completion(cx);
1632 }
1633 }),
1634 provider: Arc::new(provider),
1635 });
1636 self.refresh_inline_completion(false, false, cx);
1637 }
1638
1639 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
1640 self.placeholder_text.as_deref()
1641 }
1642
1643 pub fn set_placeholder_text(
1644 &mut self,
1645 placeholder_text: impl Into<Arc<str>>,
1646 cx: &mut ViewContext<Self>,
1647 ) {
1648 let placeholder_text = Some(placeholder_text.into());
1649 if self.placeholder_text != placeholder_text {
1650 self.placeholder_text = placeholder_text;
1651 cx.notify();
1652 }
1653 }
1654
1655 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1656 self.cursor_shape = cursor_shape;
1657
1658 // Disrupt blink for immediate user feedback that the cursor shape has changed
1659 self.blink_manager.update(cx, BlinkManager::show_cursor);
1660
1661 cx.notify();
1662 }
1663
1664 pub fn set_current_line_highlight(
1665 &mut self,
1666 current_line_highlight: Option<CurrentLineHighlight>,
1667 ) {
1668 self.current_line_highlight = current_line_highlight;
1669 }
1670
1671 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1672 self.collapse_matches = collapse_matches;
1673 }
1674
1675 pub fn register_buffers_with_language_servers(&mut self, cx: &mut ViewContext<Self>) {
1676 let buffers = self.buffer.read(cx).all_buffers();
1677 let Some(lsp_store) = self.lsp_store(cx) else {
1678 return;
1679 };
1680 lsp_store.update(cx, |lsp_store, cx| {
1681 for buffer in buffers {
1682 self.registered_buffers
1683 .entry(buffer.read(cx).remote_id())
1684 .or_insert_with(|| {
1685 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1686 });
1687 }
1688 })
1689 }
1690
1691 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1692 if self.collapse_matches {
1693 return range.start..range.start;
1694 }
1695 range.clone()
1696 }
1697
1698 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1699 if self.display_map.read(cx).clip_at_line_ends != clip {
1700 self.display_map
1701 .update(cx, |map, _| map.clip_at_line_ends = clip);
1702 }
1703 }
1704
1705 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1706 self.input_enabled = input_enabled;
1707 }
1708
1709 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
1710 self.enable_inline_completions = enabled;
1711 }
1712
1713 pub fn set_autoindent(&mut self, autoindent: bool) {
1714 if autoindent {
1715 self.autoindent_mode = Some(AutoindentMode::EachLine);
1716 } else {
1717 self.autoindent_mode = None;
1718 }
1719 }
1720
1721 pub fn read_only(&self, cx: &AppContext) -> bool {
1722 self.read_only || self.buffer.read(cx).read_only()
1723 }
1724
1725 pub fn set_read_only(&mut self, read_only: bool) {
1726 self.read_only = read_only;
1727 }
1728
1729 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1730 self.use_autoclose = autoclose;
1731 }
1732
1733 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
1734 self.use_auto_surround = auto_surround;
1735 }
1736
1737 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1738 self.auto_replace_emoji_shortcode = auto_replace;
1739 }
1740
1741 pub fn toggle_inline_completions(
1742 &mut self,
1743 _: &ToggleInlineCompletions,
1744 cx: &mut ViewContext<Self>,
1745 ) {
1746 if self.show_inline_completions_override.is_some() {
1747 self.set_show_inline_completions(None, cx);
1748 } else {
1749 let cursor = self.selections.newest_anchor().head();
1750 if let Some((buffer, cursor_buffer_position)) =
1751 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1752 {
1753 let show_inline_completions =
1754 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
1755 self.set_show_inline_completions(Some(show_inline_completions), cx);
1756 }
1757 }
1758 }
1759
1760 pub fn set_show_inline_completions(
1761 &mut self,
1762 show_inline_completions: Option<bool>,
1763 cx: &mut ViewContext<Self>,
1764 ) {
1765 self.show_inline_completions_override = show_inline_completions;
1766 self.refresh_inline_completion(false, true, cx);
1767 }
1768
1769 fn should_show_inline_completions(
1770 &self,
1771 buffer: &Model<Buffer>,
1772 buffer_position: language::Anchor,
1773 cx: &AppContext,
1774 ) -> bool {
1775 if !self.snippet_stack.is_empty() {
1776 return false;
1777 }
1778
1779 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
1780 return false;
1781 }
1782
1783 if let Some(provider) = self.inline_completion_provider() {
1784 if let Some(show_inline_completions) = self.show_inline_completions_override {
1785 show_inline_completions
1786 } else {
1787 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
1788 }
1789 } else {
1790 false
1791 }
1792 }
1793
1794 fn inline_completions_disabled_in_scope(
1795 &self,
1796 buffer: &Model<Buffer>,
1797 buffer_position: language::Anchor,
1798 cx: &AppContext,
1799 ) -> bool {
1800 let snapshot = buffer.read(cx).snapshot();
1801 let settings = snapshot.settings_at(buffer_position, cx);
1802
1803 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
1804 return false;
1805 };
1806
1807 scope.override_name().map_or(false, |scope_name| {
1808 settings
1809 .inline_completions_disabled_in
1810 .iter()
1811 .any(|s| s == scope_name)
1812 })
1813 }
1814
1815 pub fn set_use_modal_editing(&mut self, to: bool) {
1816 self.use_modal_editing = to;
1817 }
1818
1819 pub fn use_modal_editing(&self) -> bool {
1820 self.use_modal_editing
1821 }
1822
1823 fn selections_did_change(
1824 &mut self,
1825 local: bool,
1826 old_cursor_position: &Anchor,
1827 show_completions: bool,
1828 cx: &mut ViewContext<Self>,
1829 ) {
1830 cx.invalidate_character_coordinates();
1831
1832 // Copy selections to primary selection buffer
1833 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1834 if local {
1835 let selections = self.selections.all::<usize>(cx);
1836 let buffer_handle = self.buffer.read(cx).read(cx);
1837
1838 let mut text = String::new();
1839 for (index, selection) in selections.iter().enumerate() {
1840 let text_for_selection = buffer_handle
1841 .text_for_range(selection.start..selection.end)
1842 .collect::<String>();
1843
1844 text.push_str(&text_for_selection);
1845 if index != selections.len() - 1 {
1846 text.push('\n');
1847 }
1848 }
1849
1850 if !text.is_empty() {
1851 cx.write_to_primary(ClipboardItem::new_string(text));
1852 }
1853 }
1854
1855 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1856 self.buffer.update(cx, |buffer, cx| {
1857 buffer.set_active_selections(
1858 &self.selections.disjoint_anchors(),
1859 self.selections.line_mode,
1860 self.cursor_shape,
1861 cx,
1862 )
1863 });
1864 }
1865 let display_map = self
1866 .display_map
1867 .update(cx, |display_map, cx| display_map.snapshot(cx));
1868 let buffer = &display_map.buffer_snapshot;
1869 self.add_selections_state = None;
1870 self.select_next_state = None;
1871 self.select_prev_state = None;
1872 self.select_larger_syntax_node_stack.clear();
1873 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1874 self.snippet_stack
1875 .invalidate(&self.selections.disjoint_anchors(), buffer);
1876 self.take_rename(false, cx);
1877
1878 let new_cursor_position = self.selections.newest_anchor().head();
1879
1880 self.push_to_nav_history(
1881 *old_cursor_position,
1882 Some(new_cursor_position.to_point(buffer)),
1883 cx,
1884 );
1885
1886 if local {
1887 let new_cursor_position = self.selections.newest_anchor().head();
1888 let mut context_menu = self.context_menu.borrow_mut();
1889 let completion_menu = match context_menu.as_ref() {
1890 Some(CodeContextMenu::Completions(menu)) => Some(menu),
1891 _ => {
1892 *context_menu = None;
1893 None
1894 }
1895 };
1896
1897 if let Some(completion_menu) = completion_menu {
1898 let cursor_position = new_cursor_position.to_offset(buffer);
1899 let (word_range, kind) =
1900 buffer.surrounding_word(completion_menu.initial_position, true);
1901 if kind == Some(CharKind::Word)
1902 && word_range.to_inclusive().contains(&cursor_position)
1903 {
1904 let mut completion_menu = completion_menu.clone();
1905 drop(context_menu);
1906
1907 let query = Self::completion_query(buffer, cursor_position);
1908 cx.spawn(move |this, mut cx| async move {
1909 completion_menu
1910 .filter(query.as_deref(), cx.background_executor().clone())
1911 .await;
1912
1913 this.update(&mut cx, |this, cx| {
1914 let mut context_menu = this.context_menu.borrow_mut();
1915 let Some(CodeContextMenu::Completions(menu)) = context_menu.as_ref()
1916 else {
1917 return;
1918 };
1919
1920 if menu.id > completion_menu.id {
1921 return;
1922 }
1923
1924 *context_menu = Some(CodeContextMenu::Completions(completion_menu));
1925 drop(context_menu);
1926 cx.notify();
1927 })
1928 })
1929 .detach();
1930
1931 if show_completions {
1932 self.show_completions(&ShowCompletions { trigger: None }, cx);
1933 }
1934 } else {
1935 drop(context_menu);
1936 self.hide_context_menu(cx);
1937 }
1938 } else {
1939 drop(context_menu);
1940 }
1941
1942 hide_hover(self, cx);
1943
1944 if old_cursor_position.to_display_point(&display_map).row()
1945 != new_cursor_position.to_display_point(&display_map).row()
1946 {
1947 self.available_code_actions.take();
1948 }
1949 self.refresh_code_actions(cx);
1950 self.refresh_document_highlights(cx);
1951 refresh_matching_bracket_highlights(self, cx);
1952 self.update_visible_inline_completion(cx);
1953 linked_editing_ranges::refresh_linked_ranges(self, cx);
1954 if self.git_blame_inline_enabled {
1955 self.start_inline_blame_timer(cx);
1956 }
1957 }
1958
1959 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1960 cx.emit(EditorEvent::SelectionsChanged { local });
1961
1962 if self.selections.disjoint_anchors().len() == 1 {
1963 cx.emit(SearchEvent::ActiveMatchChanged)
1964 }
1965 cx.notify();
1966 }
1967
1968 pub fn change_selections<R>(
1969 &mut self,
1970 autoscroll: Option<Autoscroll>,
1971 cx: &mut ViewContext<Self>,
1972 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1973 ) -> R {
1974 self.change_selections_inner(autoscroll, true, cx, change)
1975 }
1976
1977 pub fn change_selections_inner<R>(
1978 &mut self,
1979 autoscroll: Option<Autoscroll>,
1980 request_completions: bool,
1981 cx: &mut ViewContext<Self>,
1982 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1983 ) -> R {
1984 let old_cursor_position = self.selections.newest_anchor().head();
1985 self.push_to_selection_history();
1986
1987 let (changed, result) = self.selections.change_with(cx, change);
1988
1989 if changed {
1990 if let Some(autoscroll) = autoscroll {
1991 self.request_autoscroll(autoscroll, cx);
1992 }
1993 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
1994
1995 if self.should_open_signature_help_automatically(
1996 &old_cursor_position,
1997 self.signature_help_state.backspace_pressed(),
1998 cx,
1999 ) {
2000 self.show_signature_help(&ShowSignatureHelp, cx);
2001 }
2002 self.signature_help_state.set_backspace_pressed(false);
2003 }
2004
2005 result
2006 }
2007
2008 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2009 where
2010 I: IntoIterator<Item = (Range<S>, T)>,
2011 S: ToOffset,
2012 T: Into<Arc<str>>,
2013 {
2014 if self.read_only(cx) {
2015 return;
2016 }
2017
2018 self.buffer
2019 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2020 }
2021
2022 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2023 where
2024 I: IntoIterator<Item = (Range<S>, T)>,
2025 S: ToOffset,
2026 T: Into<Arc<str>>,
2027 {
2028 if self.read_only(cx) {
2029 return;
2030 }
2031
2032 self.buffer.update(cx, |buffer, cx| {
2033 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2034 });
2035 }
2036
2037 pub fn edit_with_block_indent<I, S, T>(
2038 &mut self,
2039 edits: I,
2040 original_indent_columns: Vec<u32>,
2041 cx: &mut ViewContext<Self>,
2042 ) where
2043 I: IntoIterator<Item = (Range<S>, T)>,
2044 S: ToOffset,
2045 T: Into<Arc<str>>,
2046 {
2047 if self.read_only(cx) {
2048 return;
2049 }
2050
2051 self.buffer.update(cx, |buffer, cx| {
2052 buffer.edit(
2053 edits,
2054 Some(AutoindentMode::Block {
2055 original_indent_columns,
2056 }),
2057 cx,
2058 )
2059 });
2060 }
2061
2062 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2063 self.hide_context_menu(cx);
2064
2065 match phase {
2066 SelectPhase::Begin {
2067 position,
2068 add,
2069 click_count,
2070 } => self.begin_selection(position, add, click_count, cx),
2071 SelectPhase::BeginColumnar {
2072 position,
2073 goal_column,
2074 reset,
2075 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2076 SelectPhase::Extend {
2077 position,
2078 click_count,
2079 } => self.extend_selection(position, click_count, cx),
2080 SelectPhase::Update {
2081 position,
2082 goal_column,
2083 scroll_delta,
2084 } => self.update_selection(position, goal_column, scroll_delta, cx),
2085 SelectPhase::End => self.end_selection(cx),
2086 }
2087 }
2088
2089 fn extend_selection(
2090 &mut self,
2091 position: DisplayPoint,
2092 click_count: usize,
2093 cx: &mut ViewContext<Self>,
2094 ) {
2095 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2096 let tail = self.selections.newest::<usize>(cx).tail();
2097 self.begin_selection(position, false, click_count, cx);
2098
2099 let position = position.to_offset(&display_map, Bias::Left);
2100 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2101
2102 let mut pending_selection = self
2103 .selections
2104 .pending_anchor()
2105 .expect("extend_selection not called with pending selection");
2106 if position >= tail {
2107 pending_selection.start = tail_anchor;
2108 } else {
2109 pending_selection.end = tail_anchor;
2110 pending_selection.reversed = true;
2111 }
2112
2113 let mut pending_mode = self.selections.pending_mode().unwrap();
2114 match &mut pending_mode {
2115 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2116 _ => {}
2117 }
2118
2119 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2120 s.set_pending(pending_selection, pending_mode)
2121 });
2122 }
2123
2124 fn begin_selection(
2125 &mut self,
2126 position: DisplayPoint,
2127 add: bool,
2128 click_count: usize,
2129 cx: &mut ViewContext<Self>,
2130 ) {
2131 if !self.focus_handle.is_focused(cx) {
2132 self.last_focused_descendant = None;
2133 cx.focus(&self.focus_handle);
2134 }
2135
2136 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2137 let buffer = &display_map.buffer_snapshot;
2138 let newest_selection = self.selections.newest_anchor().clone();
2139 let position = display_map.clip_point(position, Bias::Left);
2140
2141 let start;
2142 let end;
2143 let mode;
2144 let mut auto_scroll;
2145 match click_count {
2146 1 => {
2147 start = buffer.anchor_before(position.to_point(&display_map));
2148 end = start;
2149 mode = SelectMode::Character;
2150 auto_scroll = true;
2151 }
2152 2 => {
2153 let range = movement::surrounding_word(&display_map, position);
2154 start = buffer.anchor_before(range.start.to_point(&display_map));
2155 end = buffer.anchor_before(range.end.to_point(&display_map));
2156 mode = SelectMode::Word(start..end);
2157 auto_scroll = true;
2158 }
2159 3 => {
2160 let position = display_map
2161 .clip_point(position, Bias::Left)
2162 .to_point(&display_map);
2163 let line_start = display_map.prev_line_boundary(position).0;
2164 let next_line_start = buffer.clip_point(
2165 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2166 Bias::Left,
2167 );
2168 start = buffer.anchor_before(line_start);
2169 end = buffer.anchor_before(next_line_start);
2170 mode = SelectMode::Line(start..end);
2171 auto_scroll = true;
2172 }
2173 _ => {
2174 start = buffer.anchor_before(0);
2175 end = buffer.anchor_before(buffer.len());
2176 mode = SelectMode::All;
2177 auto_scroll = false;
2178 }
2179 }
2180 auto_scroll &= EditorSettings::get_global(cx).autoscroll_on_clicks;
2181
2182 let point_to_delete: Option<usize> = {
2183 let selected_points: Vec<Selection<Point>> =
2184 self.selections.disjoint_in_range(start..end, cx);
2185
2186 if !add || click_count > 1 {
2187 None
2188 } else if !selected_points.is_empty() {
2189 Some(selected_points[0].id)
2190 } else {
2191 let clicked_point_already_selected =
2192 self.selections.disjoint.iter().find(|selection| {
2193 selection.start.to_point(buffer) == start.to_point(buffer)
2194 || selection.end.to_point(buffer) == end.to_point(buffer)
2195 });
2196
2197 clicked_point_already_selected.map(|selection| selection.id)
2198 }
2199 };
2200
2201 let selections_count = self.selections.count();
2202
2203 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2204 if let Some(point_to_delete) = point_to_delete {
2205 s.delete(point_to_delete);
2206
2207 if selections_count == 1 {
2208 s.set_pending_anchor_range(start..end, mode);
2209 }
2210 } else {
2211 if !add {
2212 s.clear_disjoint();
2213 } else if click_count > 1 {
2214 s.delete(newest_selection.id)
2215 }
2216
2217 s.set_pending_anchor_range(start..end, mode);
2218 }
2219 });
2220 }
2221
2222 fn begin_columnar_selection(
2223 &mut self,
2224 position: DisplayPoint,
2225 goal_column: u32,
2226 reset: bool,
2227 cx: &mut ViewContext<Self>,
2228 ) {
2229 if !self.focus_handle.is_focused(cx) {
2230 self.last_focused_descendant = None;
2231 cx.focus(&self.focus_handle);
2232 }
2233
2234 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2235
2236 if reset {
2237 let pointer_position = display_map
2238 .buffer_snapshot
2239 .anchor_before(position.to_point(&display_map));
2240
2241 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2242 s.clear_disjoint();
2243 s.set_pending_anchor_range(
2244 pointer_position..pointer_position,
2245 SelectMode::Character,
2246 );
2247 });
2248 }
2249
2250 let tail = self.selections.newest::<Point>(cx).tail();
2251 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2252
2253 if !reset {
2254 self.select_columns(
2255 tail.to_display_point(&display_map),
2256 position,
2257 goal_column,
2258 &display_map,
2259 cx,
2260 );
2261 }
2262 }
2263
2264 fn update_selection(
2265 &mut self,
2266 position: DisplayPoint,
2267 goal_column: u32,
2268 scroll_delta: gpui::Point<f32>,
2269 cx: &mut ViewContext<Self>,
2270 ) {
2271 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2272
2273 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2274 let tail = tail.to_display_point(&display_map);
2275 self.select_columns(tail, position, goal_column, &display_map, cx);
2276 } else if let Some(mut pending) = self.selections.pending_anchor() {
2277 let buffer = self.buffer.read(cx).snapshot(cx);
2278 let head;
2279 let tail;
2280 let mode = self.selections.pending_mode().unwrap();
2281 match &mode {
2282 SelectMode::Character => {
2283 head = position.to_point(&display_map);
2284 tail = pending.tail().to_point(&buffer);
2285 }
2286 SelectMode::Word(original_range) => {
2287 let original_display_range = original_range.start.to_display_point(&display_map)
2288 ..original_range.end.to_display_point(&display_map);
2289 let original_buffer_range = original_display_range.start.to_point(&display_map)
2290 ..original_display_range.end.to_point(&display_map);
2291 if movement::is_inside_word(&display_map, position)
2292 || original_display_range.contains(&position)
2293 {
2294 let word_range = movement::surrounding_word(&display_map, position);
2295 if word_range.start < original_display_range.start {
2296 head = word_range.start.to_point(&display_map);
2297 } else {
2298 head = word_range.end.to_point(&display_map);
2299 }
2300 } else {
2301 head = position.to_point(&display_map);
2302 }
2303
2304 if head <= original_buffer_range.start {
2305 tail = original_buffer_range.end;
2306 } else {
2307 tail = original_buffer_range.start;
2308 }
2309 }
2310 SelectMode::Line(original_range) => {
2311 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2312
2313 let position = display_map
2314 .clip_point(position, Bias::Left)
2315 .to_point(&display_map);
2316 let line_start = display_map.prev_line_boundary(position).0;
2317 let next_line_start = buffer.clip_point(
2318 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2319 Bias::Left,
2320 );
2321
2322 if line_start < original_range.start {
2323 head = line_start
2324 } else {
2325 head = next_line_start
2326 }
2327
2328 if head <= original_range.start {
2329 tail = original_range.end;
2330 } else {
2331 tail = original_range.start;
2332 }
2333 }
2334 SelectMode::All => {
2335 return;
2336 }
2337 };
2338
2339 if head < tail {
2340 pending.start = buffer.anchor_before(head);
2341 pending.end = buffer.anchor_before(tail);
2342 pending.reversed = true;
2343 } else {
2344 pending.start = buffer.anchor_before(tail);
2345 pending.end = buffer.anchor_before(head);
2346 pending.reversed = false;
2347 }
2348
2349 self.change_selections(None, cx, |s| {
2350 s.set_pending(pending, mode);
2351 });
2352 } else {
2353 log::error!("update_selection dispatched with no pending selection");
2354 return;
2355 }
2356
2357 self.apply_scroll_delta(scroll_delta, cx);
2358 cx.notify();
2359 }
2360
2361 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2362 self.columnar_selection_tail.take();
2363 if self.selections.pending_anchor().is_some() {
2364 let selections = self.selections.all::<usize>(cx);
2365 self.change_selections(None, cx, |s| {
2366 s.select(selections);
2367 s.clear_pending();
2368 });
2369 }
2370 }
2371
2372 fn select_columns(
2373 &mut self,
2374 tail: DisplayPoint,
2375 head: DisplayPoint,
2376 goal_column: u32,
2377 display_map: &DisplaySnapshot,
2378 cx: &mut ViewContext<Self>,
2379 ) {
2380 let start_row = cmp::min(tail.row(), head.row());
2381 let end_row = cmp::max(tail.row(), head.row());
2382 let start_column = cmp::min(tail.column(), goal_column);
2383 let end_column = cmp::max(tail.column(), goal_column);
2384 let reversed = start_column < tail.column();
2385
2386 let selection_ranges = (start_row.0..=end_row.0)
2387 .map(DisplayRow)
2388 .filter_map(|row| {
2389 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2390 let start = display_map
2391 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2392 .to_point(display_map);
2393 let end = display_map
2394 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2395 .to_point(display_map);
2396 if reversed {
2397 Some(end..start)
2398 } else {
2399 Some(start..end)
2400 }
2401 } else {
2402 None
2403 }
2404 })
2405 .collect::<Vec<_>>();
2406
2407 self.change_selections(None, cx, |s| {
2408 s.select_ranges(selection_ranges);
2409 });
2410 cx.notify();
2411 }
2412
2413 pub fn has_pending_nonempty_selection(&self) -> bool {
2414 let pending_nonempty_selection = match self.selections.pending_anchor() {
2415 Some(Selection { start, end, .. }) => start != end,
2416 None => false,
2417 };
2418
2419 pending_nonempty_selection
2420 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2421 }
2422
2423 pub fn has_pending_selection(&self) -> bool {
2424 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2425 }
2426
2427 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2428 if self.clear_expanded_diff_hunks(cx) {
2429 cx.notify();
2430 return;
2431 }
2432 if self.dismiss_menus_and_popups(true, cx) {
2433 return;
2434 }
2435
2436 if self.mode == EditorMode::Full
2437 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
2438 {
2439 return;
2440 }
2441
2442 cx.propagate();
2443 }
2444
2445 pub fn dismiss_menus_and_popups(
2446 &mut self,
2447 should_report_inline_completion_event: bool,
2448 cx: &mut ViewContext<Self>,
2449 ) -> bool {
2450 if self.take_rename(false, cx).is_some() {
2451 return true;
2452 }
2453
2454 if hide_hover(self, cx) {
2455 return true;
2456 }
2457
2458 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2459 return true;
2460 }
2461
2462 if self.hide_context_menu(cx).is_some() {
2463 return true;
2464 }
2465
2466 if self.mouse_context_menu.take().is_some() {
2467 return true;
2468 }
2469
2470 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2471 return true;
2472 }
2473
2474 if self.snippet_stack.pop().is_some() {
2475 return true;
2476 }
2477
2478 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
2479 self.dismiss_diagnostics(cx);
2480 return true;
2481 }
2482
2483 false
2484 }
2485
2486 fn linked_editing_ranges_for(
2487 &self,
2488 selection: Range<text::Anchor>,
2489 cx: &AppContext,
2490 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2491 if self.linked_edit_ranges.is_empty() {
2492 return None;
2493 }
2494 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2495 selection.end.buffer_id.and_then(|end_buffer_id| {
2496 if selection.start.buffer_id != Some(end_buffer_id) {
2497 return None;
2498 }
2499 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2500 let snapshot = buffer.read(cx).snapshot();
2501 self.linked_edit_ranges
2502 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2503 .map(|ranges| (ranges, snapshot, buffer))
2504 })?;
2505 use text::ToOffset as TO;
2506 // find offset from the start of current range to current cursor position
2507 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2508
2509 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2510 let start_difference = start_offset - start_byte_offset;
2511 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2512 let end_difference = end_offset - start_byte_offset;
2513 // Current range has associated linked ranges.
2514 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2515 for range in linked_ranges.iter() {
2516 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2517 let end_offset = start_offset + end_difference;
2518 let start_offset = start_offset + start_difference;
2519 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2520 continue;
2521 }
2522 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
2523 if s.start.buffer_id != selection.start.buffer_id
2524 || s.end.buffer_id != selection.end.buffer_id
2525 {
2526 return false;
2527 }
2528 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
2529 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
2530 }) {
2531 continue;
2532 }
2533 let start = buffer_snapshot.anchor_after(start_offset);
2534 let end = buffer_snapshot.anchor_after(end_offset);
2535 linked_edits
2536 .entry(buffer.clone())
2537 .or_default()
2538 .push(start..end);
2539 }
2540 Some(linked_edits)
2541 }
2542
2543 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2544 let text: Arc<str> = text.into();
2545
2546 if self.read_only(cx) {
2547 return;
2548 }
2549
2550 let selections = self.selections.all_adjusted(cx);
2551 let mut bracket_inserted = false;
2552 let mut edits = Vec::new();
2553 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2554 let mut new_selections = Vec::with_capacity(selections.len());
2555 let mut new_autoclose_regions = Vec::new();
2556 let snapshot = self.buffer.read(cx).read(cx);
2557
2558 for (selection, autoclose_region) in
2559 self.selections_with_autoclose_regions(selections, &snapshot)
2560 {
2561 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2562 // Determine if the inserted text matches the opening or closing
2563 // bracket of any of this language's bracket pairs.
2564 let mut bracket_pair = None;
2565 let mut is_bracket_pair_start = false;
2566 let mut is_bracket_pair_end = false;
2567 if !text.is_empty() {
2568 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2569 // and they are removing the character that triggered IME popup.
2570 for (pair, enabled) in scope.brackets() {
2571 if !pair.close && !pair.surround {
2572 continue;
2573 }
2574
2575 if enabled && pair.start.ends_with(text.as_ref()) {
2576 let prefix_len = pair.start.len() - text.len();
2577 let preceding_text_matches_prefix = prefix_len == 0
2578 || (selection.start.column >= (prefix_len as u32)
2579 && snapshot.contains_str_at(
2580 Point::new(
2581 selection.start.row,
2582 selection.start.column - (prefix_len as u32),
2583 ),
2584 &pair.start[..prefix_len],
2585 ));
2586 if preceding_text_matches_prefix {
2587 bracket_pair = Some(pair.clone());
2588 is_bracket_pair_start = true;
2589 break;
2590 }
2591 }
2592 if pair.end.as_str() == text.as_ref() {
2593 bracket_pair = Some(pair.clone());
2594 is_bracket_pair_end = true;
2595 break;
2596 }
2597 }
2598 }
2599
2600 if let Some(bracket_pair) = bracket_pair {
2601 let snapshot_settings = snapshot.settings_at(selection.start, cx);
2602 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
2603 let auto_surround =
2604 self.use_auto_surround && snapshot_settings.use_auto_surround;
2605 if selection.is_empty() {
2606 if is_bracket_pair_start {
2607 // If the inserted text is a suffix of an opening bracket and the
2608 // selection is preceded by the rest of the opening bracket, then
2609 // insert the closing bracket.
2610 let following_text_allows_autoclose = snapshot
2611 .chars_at(selection.start)
2612 .next()
2613 .map_or(true, |c| scope.should_autoclose_before(c));
2614
2615 let is_closing_quote = if bracket_pair.end == bracket_pair.start
2616 && bracket_pair.start.len() == 1
2617 {
2618 let target = bracket_pair.start.chars().next().unwrap();
2619 let current_line_count = snapshot
2620 .reversed_chars_at(selection.start)
2621 .take_while(|&c| c != '\n')
2622 .filter(|&c| c == target)
2623 .count();
2624 current_line_count % 2 == 1
2625 } else {
2626 false
2627 };
2628
2629 if autoclose
2630 && bracket_pair.close
2631 && following_text_allows_autoclose
2632 && !is_closing_quote
2633 {
2634 let anchor = snapshot.anchor_before(selection.end);
2635 new_selections.push((selection.map(|_| anchor), text.len()));
2636 new_autoclose_regions.push((
2637 anchor,
2638 text.len(),
2639 selection.id,
2640 bracket_pair.clone(),
2641 ));
2642 edits.push((
2643 selection.range(),
2644 format!("{}{}", text, bracket_pair.end).into(),
2645 ));
2646 bracket_inserted = true;
2647 continue;
2648 }
2649 }
2650
2651 if let Some(region) = autoclose_region {
2652 // If the selection is followed by an auto-inserted closing bracket,
2653 // then don't insert that closing bracket again; just move the selection
2654 // past the closing bracket.
2655 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2656 && text.as_ref() == region.pair.end.as_str();
2657 if should_skip {
2658 let anchor = snapshot.anchor_after(selection.end);
2659 new_selections
2660 .push((selection.map(|_| anchor), region.pair.end.len()));
2661 continue;
2662 }
2663 }
2664
2665 let always_treat_brackets_as_autoclosed = snapshot
2666 .settings_at(selection.start, cx)
2667 .always_treat_brackets_as_autoclosed;
2668 if always_treat_brackets_as_autoclosed
2669 && is_bracket_pair_end
2670 && snapshot.contains_str_at(selection.end, text.as_ref())
2671 {
2672 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2673 // and the inserted text is a closing bracket and the selection is followed
2674 // by the closing bracket then move the selection past the closing bracket.
2675 let anchor = snapshot.anchor_after(selection.end);
2676 new_selections.push((selection.map(|_| anchor), text.len()));
2677 continue;
2678 }
2679 }
2680 // If an opening bracket is 1 character long and is typed while
2681 // text is selected, then surround that text with the bracket pair.
2682 else if auto_surround
2683 && bracket_pair.surround
2684 && is_bracket_pair_start
2685 && bracket_pair.start.chars().count() == 1
2686 {
2687 edits.push((selection.start..selection.start, text.clone()));
2688 edits.push((
2689 selection.end..selection.end,
2690 bracket_pair.end.as_str().into(),
2691 ));
2692 bracket_inserted = true;
2693 new_selections.push((
2694 Selection {
2695 id: selection.id,
2696 start: snapshot.anchor_after(selection.start),
2697 end: snapshot.anchor_before(selection.end),
2698 reversed: selection.reversed,
2699 goal: selection.goal,
2700 },
2701 0,
2702 ));
2703 continue;
2704 }
2705 }
2706 }
2707
2708 if self.auto_replace_emoji_shortcode
2709 && selection.is_empty()
2710 && text.as_ref().ends_with(':')
2711 {
2712 if let Some(possible_emoji_short_code) =
2713 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2714 {
2715 if !possible_emoji_short_code.is_empty() {
2716 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2717 let emoji_shortcode_start = Point::new(
2718 selection.start.row,
2719 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2720 );
2721
2722 // Remove shortcode from buffer
2723 edits.push((
2724 emoji_shortcode_start..selection.start,
2725 "".to_string().into(),
2726 ));
2727 new_selections.push((
2728 Selection {
2729 id: selection.id,
2730 start: snapshot.anchor_after(emoji_shortcode_start),
2731 end: snapshot.anchor_before(selection.start),
2732 reversed: selection.reversed,
2733 goal: selection.goal,
2734 },
2735 0,
2736 ));
2737
2738 // Insert emoji
2739 let selection_start_anchor = snapshot.anchor_after(selection.start);
2740 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2741 edits.push((selection.start..selection.end, emoji.to_string().into()));
2742
2743 continue;
2744 }
2745 }
2746 }
2747 }
2748
2749 // If not handling any auto-close operation, then just replace the selected
2750 // text with the given input and move the selection to the end of the
2751 // newly inserted text.
2752 let anchor = snapshot.anchor_after(selection.end);
2753 if !self.linked_edit_ranges.is_empty() {
2754 let start_anchor = snapshot.anchor_before(selection.start);
2755
2756 let is_word_char = text.chars().next().map_or(true, |char| {
2757 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
2758 classifier.is_word(char)
2759 });
2760
2761 if is_word_char {
2762 if let Some(ranges) = self
2763 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
2764 {
2765 for (buffer, edits) in ranges {
2766 linked_edits
2767 .entry(buffer.clone())
2768 .or_default()
2769 .extend(edits.into_iter().map(|range| (range, text.clone())));
2770 }
2771 }
2772 }
2773 }
2774
2775 new_selections.push((selection.map(|_| anchor), 0));
2776 edits.push((selection.start..selection.end, text.clone()));
2777 }
2778
2779 drop(snapshot);
2780
2781 self.transact(cx, |this, cx| {
2782 this.buffer.update(cx, |buffer, cx| {
2783 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2784 });
2785 for (buffer, edits) in linked_edits {
2786 buffer.update(cx, |buffer, cx| {
2787 let snapshot = buffer.snapshot();
2788 let edits = edits
2789 .into_iter()
2790 .map(|(range, text)| {
2791 use text::ToPoint as TP;
2792 let end_point = TP::to_point(&range.end, &snapshot);
2793 let start_point = TP::to_point(&range.start, &snapshot);
2794 (start_point..end_point, text)
2795 })
2796 .sorted_by_key(|(range, _)| range.start)
2797 .collect::<Vec<_>>();
2798 buffer.edit(edits, None, cx);
2799 })
2800 }
2801 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2802 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2803 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
2804 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
2805 .zip(new_selection_deltas)
2806 .map(|(selection, delta)| Selection {
2807 id: selection.id,
2808 start: selection.start + delta,
2809 end: selection.end + delta,
2810 reversed: selection.reversed,
2811 goal: SelectionGoal::None,
2812 })
2813 .collect::<Vec<_>>();
2814
2815 let mut i = 0;
2816 for (position, delta, selection_id, pair) in new_autoclose_regions {
2817 let position = position.to_offset(&map.buffer_snapshot) + delta;
2818 let start = map.buffer_snapshot.anchor_before(position);
2819 let end = map.buffer_snapshot.anchor_after(position);
2820 while let Some(existing_state) = this.autoclose_regions.get(i) {
2821 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
2822 Ordering::Less => i += 1,
2823 Ordering::Greater => break,
2824 Ordering::Equal => {
2825 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
2826 Ordering::Less => i += 1,
2827 Ordering::Equal => break,
2828 Ordering::Greater => break,
2829 }
2830 }
2831 }
2832 }
2833 this.autoclose_regions.insert(
2834 i,
2835 AutocloseRegion {
2836 selection_id,
2837 range: start..end,
2838 pair,
2839 },
2840 );
2841 }
2842
2843 let had_active_inline_completion = this.has_active_inline_completion();
2844 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
2845 s.select(new_selections)
2846 });
2847
2848 if !bracket_inserted {
2849 if let Some(on_type_format_task) =
2850 this.trigger_on_type_formatting(text.to_string(), cx)
2851 {
2852 on_type_format_task.detach_and_log_err(cx);
2853 }
2854 }
2855
2856 let editor_settings = EditorSettings::get_global(cx);
2857 if bracket_inserted
2858 && (editor_settings.auto_signature_help
2859 || editor_settings.show_signature_help_after_edits)
2860 {
2861 this.show_signature_help(&ShowSignatureHelp, cx);
2862 }
2863
2864 let trigger_in_words = !had_active_inline_completion;
2865 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2866 linked_editing_ranges::refresh_linked_ranges(this, cx);
2867 this.refresh_inline_completion(true, false, cx);
2868 });
2869 }
2870
2871 fn find_possible_emoji_shortcode_at_position(
2872 snapshot: &MultiBufferSnapshot,
2873 position: Point,
2874 ) -> Option<String> {
2875 let mut chars = Vec::new();
2876 let mut found_colon = false;
2877 for char in snapshot.reversed_chars_at(position).take(100) {
2878 // Found a possible emoji shortcode in the middle of the buffer
2879 if found_colon {
2880 if char.is_whitespace() {
2881 chars.reverse();
2882 return Some(chars.iter().collect());
2883 }
2884 // If the previous character is not a whitespace, we are in the middle of a word
2885 // and we only want to complete the shortcode if the word is made up of other emojis
2886 let mut containing_word = String::new();
2887 for ch in snapshot
2888 .reversed_chars_at(position)
2889 .skip(chars.len() + 1)
2890 .take(100)
2891 {
2892 if ch.is_whitespace() {
2893 break;
2894 }
2895 containing_word.push(ch);
2896 }
2897 let containing_word = containing_word.chars().rev().collect::<String>();
2898 if util::word_consists_of_emojis(containing_word.as_str()) {
2899 chars.reverse();
2900 return Some(chars.iter().collect());
2901 }
2902 }
2903
2904 if char.is_whitespace() || !char.is_ascii() {
2905 return None;
2906 }
2907 if char == ':' {
2908 found_colon = true;
2909 } else {
2910 chars.push(char);
2911 }
2912 }
2913 // Found a possible emoji shortcode at the beginning of the buffer
2914 chars.reverse();
2915 Some(chars.iter().collect())
2916 }
2917
2918 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2919 self.transact(cx, |this, cx| {
2920 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2921 let selections = this.selections.all::<usize>(cx);
2922 let multi_buffer = this.buffer.read(cx);
2923 let buffer = multi_buffer.snapshot(cx);
2924 selections
2925 .iter()
2926 .map(|selection| {
2927 let start_point = selection.start.to_point(&buffer);
2928 let mut indent =
2929 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
2930 indent.len = cmp::min(indent.len, start_point.column);
2931 let start = selection.start;
2932 let end = selection.end;
2933 let selection_is_empty = start == end;
2934 let language_scope = buffer.language_scope_at(start);
2935 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2936 &language_scope
2937 {
2938 let leading_whitespace_len = buffer
2939 .reversed_chars_at(start)
2940 .take_while(|c| c.is_whitespace() && *c != '\n')
2941 .map(|c| c.len_utf8())
2942 .sum::<usize>();
2943
2944 let trailing_whitespace_len = buffer
2945 .chars_at(end)
2946 .take_while(|c| c.is_whitespace() && *c != '\n')
2947 .map(|c| c.len_utf8())
2948 .sum::<usize>();
2949
2950 let insert_extra_newline =
2951 language.brackets().any(|(pair, enabled)| {
2952 let pair_start = pair.start.trim_end();
2953 let pair_end = pair.end.trim_start();
2954
2955 enabled
2956 && pair.newline
2957 && buffer.contains_str_at(
2958 end + trailing_whitespace_len,
2959 pair_end,
2960 )
2961 && buffer.contains_str_at(
2962 (start - leading_whitespace_len)
2963 .saturating_sub(pair_start.len()),
2964 pair_start,
2965 )
2966 });
2967
2968 // Comment extension on newline is allowed only for cursor selections
2969 let comment_delimiter = maybe!({
2970 if !selection_is_empty {
2971 return None;
2972 }
2973
2974 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
2975 return None;
2976 }
2977
2978 let delimiters = language.line_comment_prefixes();
2979 let max_len_of_delimiter =
2980 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2981 let (snapshot, range) =
2982 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
2983
2984 let mut index_of_first_non_whitespace = 0;
2985 let comment_candidate = snapshot
2986 .chars_for_range(range)
2987 .skip_while(|c| {
2988 let should_skip = c.is_whitespace();
2989 if should_skip {
2990 index_of_first_non_whitespace += 1;
2991 }
2992 should_skip
2993 })
2994 .take(max_len_of_delimiter)
2995 .collect::<String>();
2996 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2997 comment_candidate.starts_with(comment_prefix.as_ref())
2998 })?;
2999 let cursor_is_placed_after_comment_marker =
3000 index_of_first_non_whitespace + comment_prefix.len()
3001 <= start_point.column as usize;
3002 if cursor_is_placed_after_comment_marker {
3003 Some(comment_prefix.clone())
3004 } else {
3005 None
3006 }
3007 });
3008 (comment_delimiter, insert_extra_newline)
3009 } else {
3010 (None, false)
3011 };
3012
3013 let capacity_for_delimiter = comment_delimiter
3014 .as_deref()
3015 .map(str::len)
3016 .unwrap_or_default();
3017 let mut new_text =
3018 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3019 new_text.push('\n');
3020 new_text.extend(indent.chars());
3021 if let Some(delimiter) = &comment_delimiter {
3022 new_text.push_str(delimiter);
3023 }
3024 if insert_extra_newline {
3025 new_text = new_text.repeat(2);
3026 }
3027
3028 let anchor = buffer.anchor_after(end);
3029 let new_selection = selection.map(|_| anchor);
3030 (
3031 (start..end, new_text),
3032 (insert_extra_newline, new_selection),
3033 )
3034 })
3035 .unzip()
3036 };
3037
3038 this.edit_with_autoindent(edits, cx);
3039 let buffer = this.buffer.read(cx).snapshot(cx);
3040 let new_selections = selection_fixup_info
3041 .into_iter()
3042 .map(|(extra_newline_inserted, new_selection)| {
3043 let mut cursor = new_selection.end.to_point(&buffer);
3044 if extra_newline_inserted {
3045 cursor.row -= 1;
3046 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3047 }
3048 new_selection.map(|_| cursor)
3049 })
3050 .collect();
3051
3052 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3053 this.refresh_inline_completion(true, false, cx);
3054 });
3055 }
3056
3057 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3058 let buffer = self.buffer.read(cx);
3059 let snapshot = buffer.snapshot(cx);
3060
3061 let mut edits = Vec::new();
3062 let mut rows = Vec::new();
3063
3064 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3065 let cursor = selection.head();
3066 let row = cursor.row;
3067
3068 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3069
3070 let newline = "\n".to_string();
3071 edits.push((start_of_line..start_of_line, newline));
3072
3073 rows.push(row + rows_inserted as u32);
3074 }
3075
3076 self.transact(cx, |editor, cx| {
3077 editor.edit(edits, cx);
3078
3079 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3080 let mut index = 0;
3081 s.move_cursors_with(|map, _, _| {
3082 let row = rows[index];
3083 index += 1;
3084
3085 let point = Point::new(row, 0);
3086 let boundary = map.next_line_boundary(point).1;
3087 let clipped = map.clip_point(boundary, Bias::Left);
3088
3089 (clipped, SelectionGoal::None)
3090 });
3091 });
3092
3093 let mut indent_edits = Vec::new();
3094 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3095 for row in rows {
3096 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3097 for (row, indent) in indents {
3098 if indent.len == 0 {
3099 continue;
3100 }
3101
3102 let text = match indent.kind {
3103 IndentKind::Space => " ".repeat(indent.len as usize),
3104 IndentKind::Tab => "\t".repeat(indent.len as usize),
3105 };
3106 let point = Point::new(row.0, 0);
3107 indent_edits.push((point..point, text));
3108 }
3109 }
3110 editor.edit(indent_edits, cx);
3111 });
3112 }
3113
3114 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3115 let buffer = self.buffer.read(cx);
3116 let snapshot = buffer.snapshot(cx);
3117
3118 let mut edits = Vec::new();
3119 let mut rows = Vec::new();
3120 let mut rows_inserted = 0;
3121
3122 for selection in self.selections.all_adjusted(cx) {
3123 let cursor = selection.head();
3124 let row = cursor.row;
3125
3126 let point = Point::new(row + 1, 0);
3127 let start_of_line = snapshot.clip_point(point, Bias::Left);
3128
3129 let newline = "\n".to_string();
3130 edits.push((start_of_line..start_of_line, newline));
3131
3132 rows_inserted += 1;
3133 rows.push(row + rows_inserted);
3134 }
3135
3136 self.transact(cx, |editor, cx| {
3137 editor.edit(edits, cx);
3138
3139 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3140 let mut index = 0;
3141 s.move_cursors_with(|map, _, _| {
3142 let row = rows[index];
3143 index += 1;
3144
3145 let point = Point::new(row, 0);
3146 let boundary = map.next_line_boundary(point).1;
3147 let clipped = map.clip_point(boundary, Bias::Left);
3148
3149 (clipped, SelectionGoal::None)
3150 });
3151 });
3152
3153 let mut indent_edits = Vec::new();
3154 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3155 for row in rows {
3156 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3157 for (row, indent) in indents {
3158 if indent.len == 0 {
3159 continue;
3160 }
3161
3162 let text = match indent.kind {
3163 IndentKind::Space => " ".repeat(indent.len as usize),
3164 IndentKind::Tab => "\t".repeat(indent.len as usize),
3165 };
3166 let point = Point::new(row.0, 0);
3167 indent_edits.push((point..point, text));
3168 }
3169 }
3170 editor.edit(indent_edits, cx);
3171 });
3172 }
3173
3174 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3175 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3176 original_indent_columns: Vec::new(),
3177 });
3178 self.insert_with_autoindent_mode(text, autoindent, cx);
3179 }
3180
3181 fn insert_with_autoindent_mode(
3182 &mut self,
3183 text: &str,
3184 autoindent_mode: Option<AutoindentMode>,
3185 cx: &mut ViewContext<Self>,
3186 ) {
3187 if self.read_only(cx) {
3188 return;
3189 }
3190
3191 let text: Arc<str> = text.into();
3192 self.transact(cx, |this, cx| {
3193 let old_selections = this.selections.all_adjusted(cx);
3194 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3195 let anchors = {
3196 let snapshot = buffer.read(cx);
3197 old_selections
3198 .iter()
3199 .map(|s| {
3200 let anchor = snapshot.anchor_after(s.head());
3201 s.map(|_| anchor)
3202 })
3203 .collect::<Vec<_>>()
3204 };
3205 buffer.edit(
3206 old_selections
3207 .iter()
3208 .map(|s| (s.start..s.end, text.clone())),
3209 autoindent_mode,
3210 cx,
3211 );
3212 anchors
3213 });
3214
3215 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3216 s.select_anchors(selection_anchors);
3217 })
3218 });
3219 }
3220
3221 fn trigger_completion_on_input(
3222 &mut self,
3223 text: &str,
3224 trigger_in_words: bool,
3225 cx: &mut ViewContext<Self>,
3226 ) {
3227 if self.is_completion_trigger(text, trigger_in_words, cx) {
3228 self.show_completions(
3229 &ShowCompletions {
3230 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3231 },
3232 cx,
3233 );
3234 } else {
3235 self.hide_context_menu(cx);
3236 }
3237 }
3238
3239 fn is_completion_trigger(
3240 &self,
3241 text: &str,
3242 trigger_in_words: bool,
3243 cx: &mut ViewContext<Self>,
3244 ) -> bool {
3245 let position = self.selections.newest_anchor().head();
3246 let multibuffer = self.buffer.read(cx);
3247 let Some(buffer) = position
3248 .buffer_id
3249 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3250 else {
3251 return false;
3252 };
3253
3254 if let Some(completion_provider) = &self.completion_provider {
3255 completion_provider.is_completion_trigger(
3256 &buffer,
3257 position.text_anchor,
3258 text,
3259 trigger_in_words,
3260 cx,
3261 )
3262 } else {
3263 false
3264 }
3265 }
3266
3267 /// If any empty selections is touching the start of its innermost containing autoclose
3268 /// region, expand it to select the brackets.
3269 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3270 let selections = self.selections.all::<usize>(cx);
3271 let buffer = self.buffer.read(cx).read(cx);
3272 let new_selections = self
3273 .selections_with_autoclose_regions(selections, &buffer)
3274 .map(|(mut selection, region)| {
3275 if !selection.is_empty() {
3276 return selection;
3277 }
3278
3279 if let Some(region) = region {
3280 let mut range = region.range.to_offset(&buffer);
3281 if selection.start == range.start && range.start >= region.pair.start.len() {
3282 range.start -= region.pair.start.len();
3283 if buffer.contains_str_at(range.start, ®ion.pair.start)
3284 && buffer.contains_str_at(range.end, ®ion.pair.end)
3285 {
3286 range.end += region.pair.end.len();
3287 selection.start = range.start;
3288 selection.end = range.end;
3289
3290 return selection;
3291 }
3292 }
3293 }
3294
3295 let always_treat_brackets_as_autoclosed = buffer
3296 .settings_at(selection.start, cx)
3297 .always_treat_brackets_as_autoclosed;
3298
3299 if !always_treat_brackets_as_autoclosed {
3300 return selection;
3301 }
3302
3303 if let Some(scope) = buffer.language_scope_at(selection.start) {
3304 for (pair, enabled) in scope.brackets() {
3305 if !enabled || !pair.close {
3306 continue;
3307 }
3308
3309 if buffer.contains_str_at(selection.start, &pair.end) {
3310 let pair_start_len = pair.start.len();
3311 if buffer.contains_str_at(
3312 selection.start.saturating_sub(pair_start_len),
3313 &pair.start,
3314 ) {
3315 selection.start -= pair_start_len;
3316 selection.end += pair.end.len();
3317
3318 return selection;
3319 }
3320 }
3321 }
3322 }
3323
3324 selection
3325 })
3326 .collect();
3327
3328 drop(buffer);
3329 self.change_selections(None, cx, |selections| selections.select(new_selections));
3330 }
3331
3332 /// Iterate the given selections, and for each one, find the smallest surrounding
3333 /// autoclose region. This uses the ordering of the selections and the autoclose
3334 /// regions to avoid repeated comparisons.
3335 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3336 &'a self,
3337 selections: impl IntoIterator<Item = Selection<D>>,
3338 buffer: &'a MultiBufferSnapshot,
3339 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3340 let mut i = 0;
3341 let mut regions = self.autoclose_regions.as_slice();
3342 selections.into_iter().map(move |selection| {
3343 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3344
3345 let mut enclosing = None;
3346 while let Some(pair_state) = regions.get(i) {
3347 if pair_state.range.end.to_offset(buffer) < range.start {
3348 regions = ®ions[i + 1..];
3349 i = 0;
3350 } else if pair_state.range.start.to_offset(buffer) > range.end {
3351 break;
3352 } else {
3353 if pair_state.selection_id == selection.id {
3354 enclosing = Some(pair_state);
3355 }
3356 i += 1;
3357 }
3358 }
3359
3360 (selection, enclosing)
3361 })
3362 }
3363
3364 /// Remove any autoclose regions that no longer contain their selection.
3365 fn invalidate_autoclose_regions(
3366 &mut self,
3367 mut selections: &[Selection<Anchor>],
3368 buffer: &MultiBufferSnapshot,
3369 ) {
3370 self.autoclose_regions.retain(|state| {
3371 let mut i = 0;
3372 while let Some(selection) = selections.get(i) {
3373 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3374 selections = &selections[1..];
3375 continue;
3376 }
3377 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3378 break;
3379 }
3380 if selection.id == state.selection_id {
3381 return true;
3382 } else {
3383 i += 1;
3384 }
3385 }
3386 false
3387 });
3388 }
3389
3390 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3391 let offset = position.to_offset(buffer);
3392 let (word_range, kind) = buffer.surrounding_word(offset, true);
3393 if offset > word_range.start && kind == Some(CharKind::Word) {
3394 Some(
3395 buffer
3396 .text_for_range(word_range.start..offset)
3397 .collect::<String>(),
3398 )
3399 } else {
3400 None
3401 }
3402 }
3403
3404 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3405 self.refresh_inlay_hints(
3406 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3407 cx,
3408 );
3409 }
3410
3411 pub fn inlay_hints_enabled(&self) -> bool {
3412 self.inlay_hint_cache.enabled
3413 }
3414
3415 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3416 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
3417 return;
3418 }
3419
3420 let reason_description = reason.description();
3421 let ignore_debounce = matches!(
3422 reason,
3423 InlayHintRefreshReason::SettingsChange(_)
3424 | InlayHintRefreshReason::Toggle(_)
3425 | InlayHintRefreshReason::ExcerptsRemoved(_)
3426 );
3427 let (invalidate_cache, required_languages) = match reason {
3428 InlayHintRefreshReason::Toggle(enabled) => {
3429 self.inlay_hint_cache.enabled = enabled;
3430 if enabled {
3431 (InvalidationStrategy::RefreshRequested, None)
3432 } else {
3433 self.inlay_hint_cache.clear();
3434 self.splice_inlays(
3435 self.visible_inlay_hints(cx)
3436 .iter()
3437 .map(|inlay| inlay.id)
3438 .collect(),
3439 Vec::new(),
3440 cx,
3441 );
3442 return;
3443 }
3444 }
3445 InlayHintRefreshReason::SettingsChange(new_settings) => {
3446 match self.inlay_hint_cache.update_settings(
3447 &self.buffer,
3448 new_settings,
3449 self.visible_inlay_hints(cx),
3450 cx,
3451 ) {
3452 ControlFlow::Break(Some(InlaySplice {
3453 to_remove,
3454 to_insert,
3455 })) => {
3456 self.splice_inlays(to_remove, to_insert, cx);
3457 return;
3458 }
3459 ControlFlow::Break(None) => return,
3460 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3461 }
3462 }
3463 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3464 if let Some(InlaySplice {
3465 to_remove,
3466 to_insert,
3467 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3468 {
3469 self.splice_inlays(to_remove, to_insert, cx);
3470 }
3471 return;
3472 }
3473 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3474 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3475 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3476 }
3477 InlayHintRefreshReason::RefreshRequested => {
3478 (InvalidationStrategy::RefreshRequested, None)
3479 }
3480 };
3481
3482 if let Some(InlaySplice {
3483 to_remove,
3484 to_insert,
3485 }) = self.inlay_hint_cache.spawn_hint_refresh(
3486 reason_description,
3487 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3488 invalidate_cache,
3489 ignore_debounce,
3490 cx,
3491 ) {
3492 self.splice_inlays(to_remove, to_insert, cx);
3493 }
3494 }
3495
3496 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3497 self.display_map
3498 .read(cx)
3499 .current_inlays()
3500 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3501 .cloned()
3502 .collect()
3503 }
3504
3505 pub fn excerpts_for_inlay_hints_query(
3506 &self,
3507 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3508 cx: &mut ViewContext<Editor>,
3509 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3510 let Some(project) = self.project.as_ref() else {
3511 return HashMap::default();
3512 };
3513 let project = project.read(cx);
3514 let multi_buffer = self.buffer().read(cx);
3515 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3516 let multi_buffer_visible_start = self
3517 .scroll_manager
3518 .anchor()
3519 .anchor
3520 .to_point(&multi_buffer_snapshot);
3521 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3522 multi_buffer_visible_start
3523 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3524 Bias::Left,
3525 );
3526 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3527 multi_buffer
3528 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3529 .into_iter()
3530 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3531 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3532 let buffer = buffer_handle.read(cx);
3533 let buffer_file = project::File::from_dyn(buffer.file())?;
3534 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3535 let worktree_entry = buffer_worktree
3536 .read(cx)
3537 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3538 if worktree_entry.is_ignored {
3539 return None;
3540 }
3541
3542 let language = buffer.language()?;
3543 if let Some(restrict_to_languages) = restrict_to_languages {
3544 if !restrict_to_languages.contains(language) {
3545 return None;
3546 }
3547 }
3548 Some((
3549 excerpt_id,
3550 (
3551 buffer_handle,
3552 buffer.version().clone(),
3553 excerpt_visible_range,
3554 ),
3555 ))
3556 })
3557 .collect()
3558 }
3559
3560 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3561 TextLayoutDetails {
3562 text_system: cx.text_system().clone(),
3563 editor_style: self.style.clone().unwrap(),
3564 rem_size: cx.rem_size(),
3565 scroll_anchor: self.scroll_manager.anchor(),
3566 visible_rows: self.visible_line_count(),
3567 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3568 }
3569 }
3570
3571 fn splice_inlays(
3572 &self,
3573 to_remove: Vec<InlayId>,
3574 to_insert: Vec<Inlay>,
3575 cx: &mut ViewContext<Self>,
3576 ) {
3577 self.display_map.update(cx, |display_map, cx| {
3578 display_map.splice_inlays(to_remove, to_insert, cx)
3579 });
3580 cx.notify();
3581 }
3582
3583 fn trigger_on_type_formatting(
3584 &self,
3585 input: String,
3586 cx: &mut ViewContext<Self>,
3587 ) -> Option<Task<Result<()>>> {
3588 if input.len() != 1 {
3589 return None;
3590 }
3591
3592 let project = self.project.as_ref()?;
3593 let position = self.selections.newest_anchor().head();
3594 let (buffer, buffer_position) = self
3595 .buffer
3596 .read(cx)
3597 .text_anchor_for_position(position, cx)?;
3598
3599 let settings = language_settings::language_settings(
3600 buffer
3601 .read(cx)
3602 .language_at(buffer_position)
3603 .map(|l| l.name()),
3604 buffer.read(cx).file(),
3605 cx,
3606 );
3607 if !settings.use_on_type_format {
3608 return None;
3609 }
3610
3611 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3612 // hence we do LSP request & edit on host side only — add formats to host's history.
3613 let push_to_lsp_host_history = true;
3614 // If this is not the host, append its history with new edits.
3615 let push_to_client_history = project.read(cx).is_via_collab();
3616
3617 let on_type_formatting = project.update(cx, |project, cx| {
3618 project.on_type_format(
3619 buffer.clone(),
3620 buffer_position,
3621 input,
3622 push_to_lsp_host_history,
3623 cx,
3624 )
3625 });
3626 Some(cx.spawn(|editor, mut cx| async move {
3627 if let Some(transaction) = on_type_formatting.await? {
3628 if push_to_client_history {
3629 buffer
3630 .update(&mut cx, |buffer, _| {
3631 buffer.push_transaction(transaction, Instant::now());
3632 })
3633 .ok();
3634 }
3635 editor.update(&mut cx, |editor, cx| {
3636 editor.refresh_document_highlights(cx);
3637 })?;
3638 }
3639 Ok(())
3640 }))
3641 }
3642
3643 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
3644 if self.pending_rename.is_some() {
3645 return;
3646 }
3647
3648 let Some(provider) = self.completion_provider.as_ref() else {
3649 return;
3650 };
3651
3652 if !self.snippet_stack.is_empty() && self.context_menu.borrow().as_ref().is_some() {
3653 return;
3654 }
3655
3656 let position = self.selections.newest_anchor().head();
3657 let (buffer, buffer_position) =
3658 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3659 output
3660 } else {
3661 return;
3662 };
3663 let show_completion_documentation = buffer
3664 .read(cx)
3665 .snapshot()
3666 .settings_at(buffer_position, cx)
3667 .show_completion_documentation;
3668
3669 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3670
3671 let aside_was_displayed = match self.context_menu.borrow().deref() {
3672 Some(CodeContextMenu::Completions(menu)) => menu.aside_was_displayed.get(),
3673 _ => false,
3674 };
3675 let trigger_kind = match &options.trigger {
3676 Some(trigger) if buffer.read(cx).completion_triggers().contains(trigger) => {
3677 CompletionTriggerKind::TRIGGER_CHARACTER
3678 }
3679 _ => CompletionTriggerKind::INVOKED,
3680 };
3681 let completion_context = CompletionContext {
3682 trigger_character: options.trigger.as_ref().and_then(|trigger| {
3683 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
3684 Some(String::from(trigger))
3685 } else {
3686 None
3687 }
3688 }),
3689 trigger_kind,
3690 };
3691 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
3692 let sort_completions = provider.sort_completions();
3693
3694 let id = post_inc(&mut self.next_completion_id);
3695 let task = cx.spawn(|editor, mut cx| {
3696 async move {
3697 editor.update(&mut cx, |this, _| {
3698 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3699 })?;
3700 let completions = completions.await.log_err();
3701 let menu = if let Some(completions) = completions {
3702 let mut menu = CompletionsMenu::new(
3703 id,
3704 sort_completions,
3705 show_completion_documentation,
3706 position,
3707 buffer.clone(),
3708 completions.into(),
3709 aside_was_displayed,
3710 );
3711 menu.filter(query.as_deref(), cx.background_executor().clone())
3712 .await;
3713
3714 if menu.matches.is_empty() {
3715 None
3716 } else {
3717 Some(menu)
3718 }
3719 } else {
3720 None
3721 };
3722
3723 editor.update(&mut cx, |editor, cx| {
3724 let mut context_menu = editor.context_menu.borrow_mut();
3725 match context_menu.as_ref() {
3726 None => {}
3727 Some(CodeContextMenu::Completions(prev_menu)) => {
3728 if prev_menu.id > id {
3729 return;
3730 }
3731 }
3732 _ => return,
3733 }
3734
3735 if editor.focus_handle.is_focused(cx) && menu.is_some() {
3736 let mut menu = menu.unwrap();
3737 menu.resolve_selected_completion(editor.completion_provider.as_deref(), cx);
3738 *context_menu = Some(CodeContextMenu::Completions(menu));
3739 drop(context_menu);
3740 cx.notify();
3741 } else if editor.completion_tasks.len() <= 1 {
3742 // If there are no more completion tasks and the last menu was
3743 // empty, we should hide it. If it was already hidden, we should
3744 // also show the copilot completion when available.
3745 drop(context_menu);
3746 editor.hide_context_menu(cx);
3747 }
3748 })?;
3749
3750 Ok::<_, anyhow::Error>(())
3751 }
3752 .log_err()
3753 });
3754
3755 self.completion_tasks.push((id, task));
3756 }
3757
3758 pub fn confirm_completion(
3759 &mut self,
3760 action: &ConfirmCompletion,
3761 cx: &mut ViewContext<Self>,
3762 ) -> Option<Task<Result<()>>> {
3763 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
3764 }
3765
3766 pub fn compose_completion(
3767 &mut self,
3768 action: &ComposeCompletion,
3769 cx: &mut ViewContext<Self>,
3770 ) -> Option<Task<Result<()>>> {
3771 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
3772 }
3773
3774 fn do_completion(
3775 &mut self,
3776 item_ix: Option<usize>,
3777 intent: CompletionIntent,
3778 cx: &mut ViewContext<Editor>,
3779 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
3780 use language::ToOffset as _;
3781
3782 self.discard_inline_completion(true, cx);
3783 let completions_menu =
3784 if let CodeContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3785 menu
3786 } else {
3787 return None;
3788 };
3789
3790 let mat = completions_menu
3791 .matches
3792 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
3793 let buffer_handle = completions_menu.buffer;
3794 let completions = completions_menu.completions.borrow_mut();
3795 let completion = completions.get(mat.candidate_id)?;
3796 cx.stop_propagation();
3797
3798 let snippet;
3799 let text;
3800
3801 if completion.is_snippet() {
3802 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3803 text = snippet.as_ref().unwrap().text.clone();
3804 } else {
3805 snippet = None;
3806 text = completion.new_text.clone();
3807 };
3808 let selections = self.selections.all::<usize>(cx);
3809 let buffer = buffer_handle.read(cx);
3810 let old_range = completion.old_range.to_offset(buffer);
3811 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3812
3813 let newest_selection = self.selections.newest_anchor();
3814 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3815 return None;
3816 }
3817
3818 let lookbehind = newest_selection
3819 .start
3820 .text_anchor
3821 .to_offset(buffer)
3822 .saturating_sub(old_range.start);
3823 let lookahead = old_range
3824 .end
3825 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3826 let mut common_prefix_len = old_text
3827 .bytes()
3828 .zip(text.bytes())
3829 .take_while(|(a, b)| a == b)
3830 .count();
3831
3832 let snapshot = self.buffer.read(cx).snapshot(cx);
3833 let mut range_to_replace: Option<Range<isize>> = None;
3834 let mut ranges = Vec::new();
3835 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3836 for selection in &selections {
3837 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3838 let start = selection.start.saturating_sub(lookbehind);
3839 let end = selection.end + lookahead;
3840 if selection.id == newest_selection.id {
3841 range_to_replace = Some(
3842 ((start + common_prefix_len) as isize - selection.start as isize)
3843 ..(end as isize - selection.start as isize),
3844 );
3845 }
3846 ranges.push(start + common_prefix_len..end);
3847 } else {
3848 common_prefix_len = 0;
3849 ranges.clear();
3850 ranges.extend(selections.iter().map(|s| {
3851 if s.id == newest_selection.id {
3852 range_to_replace = Some(
3853 old_range.start.to_offset_utf16(&snapshot).0 as isize
3854 - selection.start as isize
3855 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3856 - selection.start as isize,
3857 );
3858 old_range.clone()
3859 } else {
3860 s.start..s.end
3861 }
3862 }));
3863 break;
3864 }
3865 if !self.linked_edit_ranges.is_empty() {
3866 let start_anchor = snapshot.anchor_before(selection.head());
3867 let end_anchor = snapshot.anchor_after(selection.tail());
3868 if let Some(ranges) = self
3869 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
3870 {
3871 for (buffer, edits) in ranges {
3872 linked_edits.entry(buffer.clone()).or_default().extend(
3873 edits
3874 .into_iter()
3875 .map(|range| (range, text[common_prefix_len..].to_owned())),
3876 );
3877 }
3878 }
3879 }
3880 }
3881 let text = &text[common_prefix_len..];
3882
3883 cx.emit(EditorEvent::InputHandled {
3884 utf16_range_to_replace: range_to_replace,
3885 text: text.into(),
3886 });
3887
3888 self.transact(cx, |this, cx| {
3889 if let Some(mut snippet) = snippet {
3890 snippet.text = text.to_string();
3891 for tabstop in snippet
3892 .tabstops
3893 .iter_mut()
3894 .flat_map(|tabstop| tabstop.ranges.iter_mut())
3895 {
3896 tabstop.start -= common_prefix_len as isize;
3897 tabstop.end -= common_prefix_len as isize;
3898 }
3899
3900 this.insert_snippet(&ranges, snippet, cx).log_err();
3901 } else {
3902 this.buffer.update(cx, |buffer, cx| {
3903 buffer.edit(
3904 ranges.iter().map(|range| (range.clone(), text)),
3905 this.autoindent_mode.clone(),
3906 cx,
3907 );
3908 });
3909 }
3910 for (buffer, edits) in linked_edits {
3911 buffer.update(cx, |buffer, cx| {
3912 let snapshot = buffer.snapshot();
3913 let edits = edits
3914 .into_iter()
3915 .map(|(range, text)| {
3916 use text::ToPoint as TP;
3917 let end_point = TP::to_point(&range.end, &snapshot);
3918 let start_point = TP::to_point(&range.start, &snapshot);
3919 (start_point..end_point, text)
3920 })
3921 .sorted_by_key(|(range, _)| range.start)
3922 .collect::<Vec<_>>();
3923 buffer.edit(edits, None, cx);
3924 })
3925 }
3926
3927 this.refresh_inline_completion(true, false, cx);
3928 });
3929
3930 let show_new_completions_on_confirm = completion
3931 .confirm
3932 .as_ref()
3933 .map_or(false, |confirm| confirm(intent, cx));
3934 if show_new_completions_on_confirm {
3935 self.show_completions(&ShowCompletions { trigger: None }, cx);
3936 }
3937
3938 let provider = self.completion_provider.as_ref()?;
3939 let apply_edits = provider.apply_additional_edits_for_completion(
3940 buffer_handle,
3941 completion.clone(),
3942 true,
3943 cx,
3944 );
3945
3946 let editor_settings = EditorSettings::get_global(cx);
3947 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
3948 // After the code completion is finished, users often want to know what signatures are needed.
3949 // so we should automatically call signature_help
3950 self.show_signature_help(&ShowSignatureHelp, cx);
3951 }
3952
3953 Some(cx.foreground_executor().spawn(async move {
3954 apply_edits.await?;
3955 Ok(())
3956 }))
3957 }
3958
3959 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3960 let mut context_menu = self.context_menu.borrow_mut();
3961 if let Some(CodeContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
3962 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
3963 // Toggle if we're selecting the same one
3964 *context_menu = None;
3965 cx.notify();
3966 return;
3967 } else {
3968 // Otherwise, clear it and start a new one
3969 *context_menu = None;
3970 cx.notify();
3971 }
3972 }
3973 drop(context_menu);
3974 let snapshot = self.snapshot(cx);
3975 let deployed_from_indicator = action.deployed_from_indicator;
3976 let mut task = self.code_actions_task.take();
3977 let action = action.clone();
3978 cx.spawn(|editor, mut cx| async move {
3979 while let Some(prev_task) = task {
3980 prev_task.await.log_err();
3981 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
3982 }
3983
3984 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
3985 if editor.focus_handle.is_focused(cx) {
3986 let multibuffer_point = action
3987 .deployed_from_indicator
3988 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
3989 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
3990 let (buffer, buffer_row) = snapshot
3991 .buffer_snapshot
3992 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
3993 .and_then(|(buffer_snapshot, range)| {
3994 editor
3995 .buffer
3996 .read(cx)
3997 .buffer(buffer_snapshot.remote_id())
3998 .map(|buffer| (buffer, range.start.row))
3999 })?;
4000 let (_, code_actions) = editor
4001 .available_code_actions
4002 .clone()
4003 .and_then(|(location, code_actions)| {
4004 let snapshot = location.buffer.read(cx).snapshot();
4005 let point_range = location.range.to_point(&snapshot);
4006 let point_range = point_range.start.row..=point_range.end.row;
4007 if point_range.contains(&buffer_row) {
4008 Some((location, code_actions))
4009 } else {
4010 None
4011 }
4012 })
4013 .unzip();
4014 let buffer_id = buffer.read(cx).remote_id();
4015 let tasks = editor
4016 .tasks
4017 .get(&(buffer_id, buffer_row))
4018 .map(|t| Arc::new(t.to_owned()));
4019 if tasks.is_none() && code_actions.is_none() {
4020 return None;
4021 }
4022
4023 editor.completion_tasks.clear();
4024 editor.discard_inline_completion(false, cx);
4025 let task_context =
4026 tasks
4027 .as_ref()
4028 .zip(editor.project.clone())
4029 .map(|(tasks, project)| {
4030 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4031 });
4032
4033 Some(cx.spawn(|editor, mut cx| async move {
4034 let task_context = match task_context {
4035 Some(task_context) => task_context.await,
4036 None => None,
4037 };
4038 let resolved_tasks =
4039 tasks.zip(task_context).map(|(tasks, task_context)| {
4040 Rc::new(ResolvedTasks {
4041 templates: tasks.resolve(&task_context).collect(),
4042 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4043 multibuffer_point.row,
4044 tasks.column,
4045 )),
4046 })
4047 });
4048 let spawn_straight_away = resolved_tasks
4049 .as_ref()
4050 .map_or(false, |tasks| tasks.templates.len() == 1)
4051 && code_actions
4052 .as_ref()
4053 .map_or(true, |actions| actions.is_empty());
4054 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4055 *editor.context_menu.borrow_mut() =
4056 Some(CodeContextMenu::CodeActions(CodeActionsMenu {
4057 buffer,
4058 actions: CodeActionContents {
4059 tasks: resolved_tasks,
4060 actions: code_actions,
4061 },
4062 selected_item: Default::default(),
4063 scroll_handle: UniformListScrollHandle::default(),
4064 deployed_from_indicator,
4065 }));
4066 if spawn_straight_away {
4067 if let Some(task) = editor.confirm_code_action(
4068 &ConfirmCodeAction { item_ix: Some(0) },
4069 cx,
4070 ) {
4071 cx.notify();
4072 return task;
4073 }
4074 }
4075 cx.notify();
4076 Task::ready(Ok(()))
4077 }) {
4078 task.await
4079 } else {
4080 Ok(())
4081 }
4082 }))
4083 } else {
4084 Some(Task::ready(Ok(())))
4085 }
4086 })?;
4087 if let Some(task) = spawned_test_task {
4088 task.await?;
4089 }
4090
4091 Ok::<_, anyhow::Error>(())
4092 })
4093 .detach_and_log_err(cx);
4094 }
4095
4096 pub fn confirm_code_action(
4097 &mut self,
4098 action: &ConfirmCodeAction,
4099 cx: &mut ViewContext<Self>,
4100 ) -> Option<Task<Result<()>>> {
4101 let actions_menu = if let CodeContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4102 menu
4103 } else {
4104 return None;
4105 };
4106 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4107 let action = actions_menu.actions.get(action_ix)?;
4108 let title = action.label();
4109 let buffer = actions_menu.buffer;
4110 let workspace = self.workspace()?;
4111
4112 match action {
4113 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4114 workspace.update(cx, |workspace, cx| {
4115 workspace::tasks::schedule_resolved_task(
4116 workspace,
4117 task_source_kind,
4118 resolved_task,
4119 false,
4120 cx,
4121 );
4122
4123 Some(Task::ready(Ok(())))
4124 })
4125 }
4126 CodeActionsItem::CodeAction {
4127 excerpt_id,
4128 action,
4129 provider,
4130 } => {
4131 let apply_code_action =
4132 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4133 let workspace = workspace.downgrade();
4134 Some(cx.spawn(|editor, cx| async move {
4135 let project_transaction = apply_code_action.await?;
4136 Self::open_project_transaction(
4137 &editor,
4138 workspace,
4139 project_transaction,
4140 title,
4141 cx,
4142 )
4143 .await
4144 }))
4145 }
4146 }
4147 }
4148
4149 pub async fn open_project_transaction(
4150 this: &WeakView<Editor>,
4151 workspace: WeakView<Workspace>,
4152 transaction: ProjectTransaction,
4153 title: String,
4154 mut cx: AsyncWindowContext,
4155 ) -> Result<()> {
4156 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4157 cx.update(|cx| {
4158 entries.sort_unstable_by_key(|(buffer, _)| {
4159 buffer.read(cx).file().map(|f| f.path().clone())
4160 });
4161 })?;
4162
4163 // If the project transaction's edits are all contained within this editor, then
4164 // avoid opening a new editor to display them.
4165
4166 if let Some((buffer, transaction)) = entries.first() {
4167 if entries.len() == 1 {
4168 let excerpt = this.update(&mut cx, |editor, cx| {
4169 editor
4170 .buffer()
4171 .read(cx)
4172 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4173 })?;
4174 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4175 if excerpted_buffer == *buffer {
4176 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4177 let excerpt_range = excerpt_range.to_offset(buffer);
4178 buffer
4179 .edited_ranges_for_transaction::<usize>(transaction)
4180 .all(|range| {
4181 excerpt_range.start <= range.start
4182 && excerpt_range.end >= range.end
4183 })
4184 })?;
4185
4186 if all_edits_within_excerpt {
4187 return Ok(());
4188 }
4189 }
4190 }
4191 }
4192 } else {
4193 return Ok(());
4194 }
4195
4196 let mut ranges_to_highlight = Vec::new();
4197 let excerpt_buffer = cx.new_model(|cx| {
4198 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4199 for (buffer_handle, transaction) in &entries {
4200 let buffer = buffer_handle.read(cx);
4201 ranges_to_highlight.extend(
4202 multibuffer.push_excerpts_with_context_lines(
4203 buffer_handle.clone(),
4204 buffer
4205 .edited_ranges_for_transaction::<usize>(transaction)
4206 .collect(),
4207 DEFAULT_MULTIBUFFER_CONTEXT,
4208 cx,
4209 ),
4210 );
4211 }
4212 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4213 multibuffer
4214 })?;
4215
4216 workspace.update(&mut cx, |workspace, cx| {
4217 let project = workspace.project().clone();
4218 let editor =
4219 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4220 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4221 editor.update(cx, |editor, cx| {
4222 editor.highlight_background::<Self>(
4223 &ranges_to_highlight,
4224 |theme| theme.editor_highlighted_line_background,
4225 cx,
4226 );
4227 });
4228 })?;
4229
4230 Ok(())
4231 }
4232
4233 pub fn clear_code_action_providers(&mut self) {
4234 self.code_action_providers.clear();
4235 self.available_code_actions.take();
4236 }
4237
4238 pub fn push_code_action_provider(
4239 &mut self,
4240 provider: Rc<dyn CodeActionProvider>,
4241 cx: &mut ViewContext<Self>,
4242 ) {
4243 self.code_action_providers.push(provider);
4244 self.refresh_code_actions(cx);
4245 }
4246
4247 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4248 let buffer = self.buffer.read(cx);
4249 let newest_selection = self.selections.newest_anchor().clone();
4250 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4251 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4252 if start_buffer != end_buffer {
4253 return None;
4254 }
4255
4256 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4257 cx.background_executor()
4258 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4259 .await;
4260
4261 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4262 let providers = this.code_action_providers.clone();
4263 let tasks = this
4264 .code_action_providers
4265 .iter()
4266 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4267 .collect::<Vec<_>>();
4268 (providers, tasks)
4269 })?;
4270
4271 let mut actions = Vec::new();
4272 for (provider, provider_actions) in
4273 providers.into_iter().zip(future::join_all(tasks).await)
4274 {
4275 if let Some(provider_actions) = provider_actions.log_err() {
4276 actions.extend(provider_actions.into_iter().map(|action| {
4277 AvailableCodeAction {
4278 excerpt_id: newest_selection.start.excerpt_id,
4279 action,
4280 provider: provider.clone(),
4281 }
4282 }));
4283 }
4284 }
4285
4286 this.update(&mut cx, |this, cx| {
4287 this.available_code_actions = if actions.is_empty() {
4288 None
4289 } else {
4290 Some((
4291 Location {
4292 buffer: start_buffer,
4293 range: start..end,
4294 },
4295 actions.into(),
4296 ))
4297 };
4298 cx.notify();
4299 })
4300 }));
4301 None
4302 }
4303
4304 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4305 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4306 self.show_git_blame_inline = false;
4307
4308 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4309 cx.background_executor().timer(delay).await;
4310
4311 this.update(&mut cx, |this, cx| {
4312 this.show_git_blame_inline = true;
4313 cx.notify();
4314 })
4315 .log_err();
4316 }));
4317 }
4318 }
4319
4320 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4321 if self.pending_rename.is_some() {
4322 return None;
4323 }
4324
4325 let provider = self.semantics_provider.clone()?;
4326 let buffer = self.buffer.read(cx);
4327 let newest_selection = self.selections.newest_anchor().clone();
4328 let cursor_position = newest_selection.head();
4329 let (cursor_buffer, cursor_buffer_position) =
4330 buffer.text_anchor_for_position(cursor_position, cx)?;
4331 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4332 if cursor_buffer != tail_buffer {
4333 return None;
4334 }
4335 let debounce = EditorSettings::get_global(cx).lsp_highlight_debounce;
4336 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4337 cx.background_executor()
4338 .timer(Duration::from_millis(debounce))
4339 .await;
4340
4341 let highlights = if let Some(highlights) = cx
4342 .update(|cx| {
4343 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4344 })
4345 .ok()
4346 .flatten()
4347 {
4348 highlights.await.log_err()
4349 } else {
4350 None
4351 };
4352
4353 if let Some(highlights) = highlights {
4354 this.update(&mut cx, |this, cx| {
4355 if this.pending_rename.is_some() {
4356 return;
4357 }
4358
4359 let buffer_id = cursor_position.buffer_id;
4360 let buffer = this.buffer.read(cx);
4361 if !buffer
4362 .text_anchor_for_position(cursor_position, cx)
4363 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4364 {
4365 return;
4366 }
4367
4368 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4369 let mut write_ranges = Vec::new();
4370 let mut read_ranges = Vec::new();
4371 for highlight in highlights {
4372 for (excerpt_id, excerpt_range) in
4373 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4374 {
4375 let start = highlight
4376 .range
4377 .start
4378 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4379 let end = highlight
4380 .range
4381 .end
4382 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4383 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4384 continue;
4385 }
4386
4387 let range = Anchor {
4388 buffer_id,
4389 excerpt_id,
4390 text_anchor: start,
4391 }..Anchor {
4392 buffer_id,
4393 excerpt_id,
4394 text_anchor: end,
4395 };
4396 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4397 write_ranges.push(range);
4398 } else {
4399 read_ranges.push(range);
4400 }
4401 }
4402 }
4403
4404 this.highlight_background::<DocumentHighlightRead>(
4405 &read_ranges,
4406 |theme| theme.editor_document_highlight_read_background,
4407 cx,
4408 );
4409 this.highlight_background::<DocumentHighlightWrite>(
4410 &write_ranges,
4411 |theme| theme.editor_document_highlight_write_background,
4412 cx,
4413 );
4414 cx.notify();
4415 })
4416 .log_err();
4417 }
4418 }));
4419 None
4420 }
4421
4422 pub fn refresh_inline_completion(
4423 &mut self,
4424 debounce: bool,
4425 user_requested: bool,
4426 cx: &mut ViewContext<Self>,
4427 ) -> Option<()> {
4428 let provider = self.inline_completion_provider()?;
4429 let cursor = self.selections.newest_anchor().head();
4430 let (buffer, cursor_buffer_position) =
4431 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4432
4433 if !user_requested
4434 && (!self.enable_inline_completions
4435 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4436 || !self.is_focused(cx))
4437 {
4438 self.discard_inline_completion(false, cx);
4439 return None;
4440 }
4441
4442 self.update_visible_inline_completion(cx);
4443 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4444 Some(())
4445 }
4446
4447 fn cycle_inline_completion(
4448 &mut self,
4449 direction: Direction,
4450 cx: &mut ViewContext<Self>,
4451 ) -> Option<()> {
4452 let provider = self.inline_completion_provider()?;
4453 let cursor = self.selections.newest_anchor().head();
4454 let (buffer, cursor_buffer_position) =
4455 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4456 if !self.enable_inline_completions
4457 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4458 {
4459 return None;
4460 }
4461
4462 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4463 self.update_visible_inline_completion(cx);
4464
4465 Some(())
4466 }
4467
4468 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4469 if !self.has_active_inline_completion() {
4470 self.refresh_inline_completion(false, true, cx);
4471 return;
4472 }
4473
4474 self.update_visible_inline_completion(cx);
4475 }
4476
4477 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4478 self.show_cursor_names(cx);
4479 }
4480
4481 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4482 self.show_cursor_names = true;
4483 cx.notify();
4484 cx.spawn(|this, mut cx| async move {
4485 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4486 this.update(&mut cx, |this, cx| {
4487 this.show_cursor_names = false;
4488 cx.notify()
4489 })
4490 .ok()
4491 })
4492 .detach();
4493 }
4494
4495 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4496 if self.has_active_inline_completion() {
4497 self.cycle_inline_completion(Direction::Next, cx);
4498 } else {
4499 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4500 if is_copilot_disabled {
4501 cx.propagate();
4502 }
4503 }
4504 }
4505
4506 pub fn previous_inline_completion(
4507 &mut self,
4508 _: &PreviousInlineCompletion,
4509 cx: &mut ViewContext<Self>,
4510 ) {
4511 if self.has_active_inline_completion() {
4512 self.cycle_inline_completion(Direction::Prev, cx);
4513 } else {
4514 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4515 if is_copilot_disabled {
4516 cx.propagate();
4517 }
4518 }
4519 }
4520
4521 pub fn accept_inline_completion(
4522 &mut self,
4523 _: &AcceptInlineCompletion,
4524 cx: &mut ViewContext<Self>,
4525 ) {
4526 self.hide_context_menu(cx);
4527
4528 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4529 return;
4530 };
4531
4532 self.report_inline_completion_event(true, cx);
4533
4534 match &active_inline_completion.completion {
4535 InlineCompletion::Move(position) => {
4536 let position = *position;
4537 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4538 selections.select_anchor_ranges([position..position]);
4539 });
4540 }
4541 InlineCompletion::Edit(edits) => {
4542 if let Some(provider) = self.inline_completion_provider() {
4543 provider.accept(cx);
4544 }
4545
4546 let snapshot = self.buffer.read(cx).snapshot(cx);
4547 let last_edit_end = edits.last().unwrap().0.end.bias_right(&snapshot);
4548
4549 self.buffer.update(cx, |buffer, cx| {
4550 buffer.edit(edits.iter().cloned(), None, cx)
4551 });
4552
4553 self.change_selections(None, cx, |s| {
4554 s.select_anchor_ranges([last_edit_end..last_edit_end])
4555 });
4556
4557 self.update_visible_inline_completion(cx);
4558 if self.active_inline_completion.is_none() {
4559 self.refresh_inline_completion(true, true, cx);
4560 }
4561
4562 cx.notify();
4563 }
4564 }
4565 }
4566
4567 pub fn accept_partial_inline_completion(
4568 &mut self,
4569 _: &AcceptPartialInlineCompletion,
4570 cx: &mut ViewContext<Self>,
4571 ) {
4572 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4573 return;
4574 };
4575 if self.selections.count() != 1 {
4576 return;
4577 }
4578
4579 self.report_inline_completion_event(true, cx);
4580
4581 match &active_inline_completion.completion {
4582 InlineCompletion::Move(position) => {
4583 let position = *position;
4584 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4585 selections.select_anchor_ranges([position..position]);
4586 });
4587 }
4588 InlineCompletion::Edit(edits) => {
4589 if edits.len() == 1 && edits[0].0.start == edits[0].0.end {
4590 let text = edits[0].1.as_str();
4591 let mut partial_completion = text
4592 .chars()
4593 .by_ref()
4594 .take_while(|c| c.is_alphabetic())
4595 .collect::<String>();
4596 if partial_completion.is_empty() {
4597 partial_completion = text
4598 .chars()
4599 .by_ref()
4600 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4601 .collect::<String>();
4602 }
4603
4604 cx.emit(EditorEvent::InputHandled {
4605 utf16_range_to_replace: None,
4606 text: partial_completion.clone().into(),
4607 });
4608
4609 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4610
4611 self.refresh_inline_completion(true, true, cx);
4612 cx.notify();
4613 }
4614 }
4615 }
4616 }
4617
4618 fn discard_inline_completion(
4619 &mut self,
4620 should_report_inline_completion_event: bool,
4621 cx: &mut ViewContext<Self>,
4622 ) -> bool {
4623 if should_report_inline_completion_event {
4624 self.report_inline_completion_event(false, cx);
4625 }
4626
4627 if let Some(provider) = self.inline_completion_provider() {
4628 provider.discard(cx);
4629 }
4630
4631 self.take_active_inline_completion(cx).is_some()
4632 }
4633
4634 fn report_inline_completion_event(&self, accepted: bool, cx: &AppContext) {
4635 let Some(provider) = self.inline_completion_provider() else {
4636 return;
4637 };
4638 let Some(project) = self.project.as_ref() else {
4639 return;
4640 };
4641 let Some((_, buffer, _)) = self
4642 .buffer
4643 .read(cx)
4644 .excerpt_containing(self.selections.newest_anchor().head(), cx)
4645 else {
4646 return;
4647 };
4648
4649 let project = project.read(cx);
4650 let extension = buffer
4651 .read(cx)
4652 .file()
4653 .and_then(|file| Some(file.path().extension()?.to_string_lossy().to_string()));
4654 project.client().telemetry().report_inline_completion_event(
4655 provider.name().into(),
4656 accepted,
4657 extension,
4658 );
4659 }
4660
4661 pub fn has_active_inline_completion(&self) -> bool {
4662 self.active_inline_completion.is_some()
4663 }
4664
4665 fn take_active_inline_completion(
4666 &mut self,
4667 cx: &mut ViewContext<Self>,
4668 ) -> Option<InlineCompletion> {
4669 let active_inline_completion = self.active_inline_completion.take()?;
4670 self.splice_inlays(active_inline_completion.inlay_ids, Default::default(), cx);
4671 self.clear_highlights::<InlineCompletionHighlight>(cx);
4672 Some(active_inline_completion.completion)
4673 }
4674
4675 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4676 let selection = self.selections.newest_anchor();
4677 let cursor = selection.head();
4678 let multibuffer = self.buffer.read(cx).snapshot(cx);
4679 let offset_selection = selection.map(|endpoint| endpoint.to_offset(&multibuffer));
4680 let excerpt_id = cursor.excerpt_id;
4681
4682 if !offset_selection.is_empty()
4683 || self
4684 .active_inline_completion
4685 .as_ref()
4686 .map_or(false, |completion| {
4687 let invalidation_range = completion.invalidation_range.to_offset(&multibuffer);
4688 let invalidation_range = invalidation_range.start..=invalidation_range.end;
4689 !invalidation_range.contains(&offset_selection.head())
4690 })
4691 {
4692 self.discard_inline_completion(false, cx);
4693 return None;
4694 }
4695
4696 self.take_active_inline_completion(cx);
4697 let provider = self.inline_completion_provider()?;
4698
4699 let (buffer, cursor_buffer_position) =
4700 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4701
4702 let completion = provider.suggest(&buffer, cursor_buffer_position, cx)?;
4703 let edits = completion
4704 .edits
4705 .into_iter()
4706 .map(|(range, new_text)| {
4707 (
4708 multibuffer
4709 .anchor_in_excerpt(excerpt_id, range.start)
4710 .unwrap()
4711 ..multibuffer
4712 .anchor_in_excerpt(excerpt_id, range.end)
4713 .unwrap(),
4714 new_text,
4715 )
4716 })
4717 .collect::<Vec<_>>();
4718 if edits.is_empty() {
4719 return None;
4720 }
4721
4722 let first_edit_start = edits.first().unwrap().0.start;
4723 let edit_start_row = first_edit_start
4724 .to_point(&multibuffer)
4725 .row
4726 .saturating_sub(2);
4727
4728 let last_edit_end = edits.last().unwrap().0.end;
4729 let edit_end_row = cmp::min(
4730 multibuffer.max_point().row,
4731 last_edit_end.to_point(&multibuffer).row + 2,
4732 );
4733
4734 let cursor_row = cursor.to_point(&multibuffer).row;
4735
4736 let mut inlay_ids = Vec::new();
4737 let invalidation_row_range;
4738 let completion;
4739 if cursor_row < edit_start_row {
4740 invalidation_row_range = cursor_row..edit_end_row;
4741 completion = InlineCompletion::Move(first_edit_start);
4742 } else if cursor_row > edit_end_row {
4743 invalidation_row_range = edit_start_row..cursor_row;
4744 completion = InlineCompletion::Move(first_edit_start);
4745 } else {
4746 if edits
4747 .iter()
4748 .all(|(range, _)| range.to_offset(&multibuffer).is_empty())
4749 {
4750 let mut inlays = Vec::new();
4751 for (range, new_text) in &edits {
4752 let inlay = Inlay::inline_completion(
4753 post_inc(&mut self.next_inlay_id),
4754 range.start,
4755 new_text.as_str(),
4756 );
4757 inlay_ids.push(inlay.id);
4758 inlays.push(inlay);
4759 }
4760
4761 self.splice_inlays(vec![], inlays, cx);
4762 } else {
4763 let background_color = cx.theme().status().deleted_background;
4764 self.highlight_text::<InlineCompletionHighlight>(
4765 edits.iter().map(|(range, _)| range.clone()).collect(),
4766 HighlightStyle {
4767 background_color: Some(background_color),
4768 ..Default::default()
4769 },
4770 cx,
4771 );
4772 }
4773
4774 invalidation_row_range = edit_start_row..edit_end_row;
4775 completion = InlineCompletion::Edit(edits);
4776 };
4777
4778 let invalidation_range = multibuffer
4779 .anchor_before(Point::new(invalidation_row_range.start, 0))
4780 ..multibuffer.anchor_after(Point::new(
4781 invalidation_row_range.end,
4782 multibuffer.line_len(MultiBufferRow(invalidation_row_range.end)),
4783 ));
4784
4785 self.active_inline_completion = Some(InlineCompletionState {
4786 inlay_ids,
4787 completion,
4788 invalidation_range,
4789 });
4790 cx.notify();
4791
4792 Some(())
4793 }
4794
4795 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4796 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4797 }
4798
4799 fn render_code_actions_indicator(
4800 &self,
4801 _style: &EditorStyle,
4802 row: DisplayRow,
4803 is_active: bool,
4804 cx: &mut ViewContext<Self>,
4805 ) -> Option<IconButton> {
4806 if self.available_code_actions.is_some() {
4807 Some(
4808 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4809 .shape(ui::IconButtonShape::Square)
4810 .icon_size(IconSize::XSmall)
4811 .icon_color(Color::Muted)
4812 .toggle_state(is_active)
4813 .tooltip({
4814 let focus_handle = self.focus_handle.clone();
4815 move |cx| {
4816 Tooltip::for_action_in(
4817 "Toggle Code Actions",
4818 &ToggleCodeActions {
4819 deployed_from_indicator: None,
4820 },
4821 &focus_handle,
4822 cx,
4823 )
4824 }
4825 })
4826 .on_click(cx.listener(move |editor, _e, cx| {
4827 editor.focus(cx);
4828 editor.toggle_code_actions(
4829 &ToggleCodeActions {
4830 deployed_from_indicator: Some(row),
4831 },
4832 cx,
4833 );
4834 })),
4835 )
4836 } else {
4837 None
4838 }
4839 }
4840
4841 fn clear_tasks(&mut self) {
4842 self.tasks.clear()
4843 }
4844
4845 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
4846 if self.tasks.insert(key, value).is_some() {
4847 // This case should hopefully be rare, but just in case...
4848 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4849 }
4850 }
4851
4852 fn build_tasks_context(
4853 project: &Model<Project>,
4854 buffer: &Model<Buffer>,
4855 buffer_row: u32,
4856 tasks: &Arc<RunnableTasks>,
4857 cx: &mut ViewContext<Self>,
4858 ) -> Task<Option<task::TaskContext>> {
4859 let position = Point::new(buffer_row, tasks.column);
4860 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4861 let location = Location {
4862 buffer: buffer.clone(),
4863 range: range_start..range_start,
4864 };
4865 // Fill in the environmental variables from the tree-sitter captures
4866 let mut captured_task_variables = TaskVariables::default();
4867 for (capture_name, value) in tasks.extra_variables.clone() {
4868 captured_task_variables.insert(
4869 task::VariableName::Custom(capture_name.into()),
4870 value.clone(),
4871 );
4872 }
4873 project.update(cx, |project, cx| {
4874 project.task_store().update(cx, |task_store, cx| {
4875 task_store.task_context_for_location(captured_task_variables, location, cx)
4876 })
4877 })
4878 }
4879
4880 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
4881 let Some((workspace, _)) = self.workspace.clone() else {
4882 return;
4883 };
4884 let Some(project) = self.project.clone() else {
4885 return;
4886 };
4887
4888 // Try to find a closest, enclosing node using tree-sitter that has a
4889 // task
4890 let Some((buffer, buffer_row, tasks)) = self
4891 .find_enclosing_node_task(cx)
4892 // Or find the task that's closest in row-distance.
4893 .or_else(|| self.find_closest_task(cx))
4894 else {
4895 return;
4896 };
4897
4898 let reveal_strategy = action.reveal;
4899 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
4900 cx.spawn(|_, mut cx| async move {
4901 let context = task_context.await?;
4902 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
4903
4904 let resolved = resolved_task.resolved.as_mut()?;
4905 resolved.reveal = reveal_strategy;
4906
4907 workspace
4908 .update(&mut cx, |workspace, cx| {
4909 workspace::tasks::schedule_resolved_task(
4910 workspace,
4911 task_source_kind,
4912 resolved_task,
4913 false,
4914 cx,
4915 );
4916 })
4917 .ok()
4918 })
4919 .detach();
4920 }
4921
4922 fn find_closest_task(
4923 &mut self,
4924 cx: &mut ViewContext<Self>,
4925 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
4926 let cursor_row = self.selections.newest_adjusted(cx).head().row;
4927
4928 let ((buffer_id, row), tasks) = self
4929 .tasks
4930 .iter()
4931 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
4932
4933 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
4934 let tasks = Arc::new(tasks.to_owned());
4935 Some((buffer, *row, tasks))
4936 }
4937
4938 fn find_enclosing_node_task(
4939 &mut self,
4940 cx: &mut ViewContext<Self>,
4941 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
4942 let snapshot = self.buffer.read(cx).snapshot(cx);
4943 let offset = self.selections.newest::<usize>(cx).head();
4944 let excerpt = snapshot.excerpt_containing(offset..offset)?;
4945 let buffer_id = excerpt.buffer().remote_id();
4946
4947 let layer = excerpt.buffer().syntax_layer_at(offset)?;
4948 let mut cursor = layer.node().walk();
4949
4950 while cursor.goto_first_child_for_byte(offset).is_some() {
4951 if cursor.node().end_byte() == offset {
4952 cursor.goto_next_sibling();
4953 }
4954 }
4955
4956 // Ascend to the smallest ancestor that contains the range and has a task.
4957 loop {
4958 let node = cursor.node();
4959 let node_range = node.byte_range();
4960 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
4961
4962 // Check if this node contains our offset
4963 if node_range.start <= offset && node_range.end >= offset {
4964 // If it contains offset, check for task
4965 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
4966 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
4967 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
4968 }
4969 }
4970
4971 if !cursor.goto_parent() {
4972 break;
4973 }
4974 }
4975 None
4976 }
4977
4978 fn render_run_indicator(
4979 &self,
4980 _style: &EditorStyle,
4981 is_active: bool,
4982 row: DisplayRow,
4983 cx: &mut ViewContext<Self>,
4984 ) -> IconButton {
4985 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
4986 .shape(ui::IconButtonShape::Square)
4987 .icon_size(IconSize::XSmall)
4988 .icon_color(Color::Muted)
4989 .toggle_state(is_active)
4990 .on_click(cx.listener(move |editor, _e, cx| {
4991 editor.focus(cx);
4992 editor.toggle_code_actions(
4993 &ToggleCodeActions {
4994 deployed_from_indicator: Some(row),
4995 },
4996 cx,
4997 );
4998 }))
4999 }
5000
5001 pub fn context_menu_visible(&self) -> bool {
5002 self.context_menu
5003 .borrow()
5004 .as_ref()
5005 .map_or(false, |menu| menu.visible())
5006 }
5007
5008 fn render_context_menu(
5009 &self,
5010 cursor_position: DisplayPoint,
5011 style: &EditorStyle,
5012 max_height: Pixels,
5013 cx: &mut ViewContext<Editor>,
5014 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5015 self.context_menu.borrow().as_ref().map(|menu| {
5016 menu.render(
5017 cursor_position,
5018 style,
5019 max_height,
5020 self.workspace.as_ref().map(|(w, _)| w.clone()),
5021 cx,
5022 )
5023 })
5024 }
5025
5026 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<CodeContextMenu> {
5027 cx.notify();
5028 self.completion_tasks.clear();
5029 self.context_menu.borrow_mut().take()
5030 }
5031
5032 fn show_snippet_choices(
5033 &mut self,
5034 choices: &Vec<String>,
5035 selection: Range<Anchor>,
5036 cx: &mut ViewContext<Self>,
5037 ) {
5038 if selection.start.buffer_id.is_none() {
5039 return;
5040 }
5041 let buffer_id = selection.start.buffer_id.unwrap();
5042 let buffer = self.buffer().read(cx).buffer(buffer_id);
5043 let id = post_inc(&mut self.next_completion_id);
5044
5045 if let Some(buffer) = buffer {
5046 *self.context_menu.borrow_mut() = Some(CodeContextMenu::Completions(
5047 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
5048 ));
5049 }
5050 }
5051
5052 pub fn insert_snippet(
5053 &mut self,
5054 insertion_ranges: &[Range<usize>],
5055 snippet: Snippet,
5056 cx: &mut ViewContext<Self>,
5057 ) -> Result<()> {
5058 struct Tabstop<T> {
5059 is_end_tabstop: bool,
5060 ranges: Vec<Range<T>>,
5061 choices: Option<Vec<String>>,
5062 }
5063
5064 let tabstops = self.buffer.update(cx, |buffer, cx| {
5065 let snippet_text: Arc<str> = snippet.text.clone().into();
5066 buffer.edit(
5067 insertion_ranges
5068 .iter()
5069 .cloned()
5070 .map(|range| (range, snippet_text.clone())),
5071 Some(AutoindentMode::EachLine),
5072 cx,
5073 );
5074
5075 let snapshot = &*buffer.read(cx);
5076 let snippet = &snippet;
5077 snippet
5078 .tabstops
5079 .iter()
5080 .map(|tabstop| {
5081 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5082 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5083 });
5084 let mut tabstop_ranges = tabstop
5085 .ranges
5086 .iter()
5087 .flat_map(|tabstop_range| {
5088 let mut delta = 0_isize;
5089 insertion_ranges.iter().map(move |insertion_range| {
5090 let insertion_start = insertion_range.start as isize + delta;
5091 delta +=
5092 snippet.text.len() as isize - insertion_range.len() as isize;
5093
5094 let start = ((insertion_start + tabstop_range.start) as usize)
5095 .min(snapshot.len());
5096 let end = ((insertion_start + tabstop_range.end) as usize)
5097 .min(snapshot.len());
5098 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5099 })
5100 })
5101 .collect::<Vec<_>>();
5102 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5103
5104 Tabstop {
5105 is_end_tabstop,
5106 ranges: tabstop_ranges,
5107 choices: tabstop.choices.clone(),
5108 }
5109 })
5110 .collect::<Vec<_>>()
5111 });
5112 if let Some(tabstop) = tabstops.first() {
5113 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5114 s.select_ranges(tabstop.ranges.iter().cloned());
5115 });
5116
5117 if let Some(choices) = &tabstop.choices {
5118 if let Some(selection) = tabstop.ranges.first() {
5119 self.show_snippet_choices(choices, selection.clone(), cx)
5120 }
5121 }
5122
5123 // If we're already at the last tabstop and it's at the end of the snippet,
5124 // we're done, we don't need to keep the state around.
5125 if !tabstop.is_end_tabstop {
5126 let choices = tabstops
5127 .iter()
5128 .map(|tabstop| tabstop.choices.clone())
5129 .collect();
5130
5131 let ranges = tabstops
5132 .into_iter()
5133 .map(|tabstop| tabstop.ranges)
5134 .collect::<Vec<_>>();
5135
5136 self.snippet_stack.push(SnippetState {
5137 active_index: 0,
5138 ranges,
5139 choices,
5140 });
5141 }
5142
5143 // Check whether the just-entered snippet ends with an auto-closable bracket.
5144 if self.autoclose_regions.is_empty() {
5145 let snapshot = self.buffer.read(cx).snapshot(cx);
5146 for selection in &mut self.selections.all::<Point>(cx) {
5147 let selection_head = selection.head();
5148 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5149 continue;
5150 };
5151
5152 let mut bracket_pair = None;
5153 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5154 let prev_chars = snapshot
5155 .reversed_chars_at(selection_head)
5156 .collect::<String>();
5157 for (pair, enabled) in scope.brackets() {
5158 if enabled
5159 && pair.close
5160 && prev_chars.starts_with(pair.start.as_str())
5161 && next_chars.starts_with(pair.end.as_str())
5162 {
5163 bracket_pair = Some(pair.clone());
5164 break;
5165 }
5166 }
5167 if let Some(pair) = bracket_pair {
5168 let start = snapshot.anchor_after(selection_head);
5169 let end = snapshot.anchor_after(selection_head);
5170 self.autoclose_regions.push(AutocloseRegion {
5171 selection_id: selection.id,
5172 range: start..end,
5173 pair,
5174 });
5175 }
5176 }
5177 }
5178 }
5179 Ok(())
5180 }
5181
5182 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5183 self.move_to_snippet_tabstop(Bias::Right, cx)
5184 }
5185
5186 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5187 self.move_to_snippet_tabstop(Bias::Left, cx)
5188 }
5189
5190 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5191 if let Some(mut snippet) = self.snippet_stack.pop() {
5192 match bias {
5193 Bias::Left => {
5194 if snippet.active_index > 0 {
5195 snippet.active_index -= 1;
5196 } else {
5197 self.snippet_stack.push(snippet);
5198 return false;
5199 }
5200 }
5201 Bias::Right => {
5202 if snippet.active_index + 1 < snippet.ranges.len() {
5203 snippet.active_index += 1;
5204 } else {
5205 self.snippet_stack.push(snippet);
5206 return false;
5207 }
5208 }
5209 }
5210 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5211 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5212 s.select_anchor_ranges(current_ranges.iter().cloned())
5213 });
5214
5215 if let Some(choices) = &snippet.choices[snippet.active_index] {
5216 if let Some(selection) = current_ranges.first() {
5217 self.show_snippet_choices(&choices, selection.clone(), cx);
5218 }
5219 }
5220
5221 // If snippet state is not at the last tabstop, push it back on the stack
5222 if snippet.active_index + 1 < snippet.ranges.len() {
5223 self.snippet_stack.push(snippet);
5224 }
5225 return true;
5226 }
5227 }
5228
5229 false
5230 }
5231
5232 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5233 self.transact(cx, |this, cx| {
5234 this.select_all(&SelectAll, cx);
5235 this.insert("", cx);
5236 });
5237 }
5238
5239 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5240 self.transact(cx, |this, cx| {
5241 this.select_autoclose_pair(cx);
5242 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5243 if !this.linked_edit_ranges.is_empty() {
5244 let selections = this.selections.all::<MultiBufferPoint>(cx);
5245 let snapshot = this.buffer.read(cx).snapshot(cx);
5246
5247 for selection in selections.iter() {
5248 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5249 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5250 if selection_start.buffer_id != selection_end.buffer_id {
5251 continue;
5252 }
5253 if let Some(ranges) =
5254 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5255 {
5256 for (buffer, entries) in ranges {
5257 linked_ranges.entry(buffer).or_default().extend(entries);
5258 }
5259 }
5260 }
5261 }
5262
5263 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5264 if !this.selections.line_mode {
5265 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5266 for selection in &mut selections {
5267 if selection.is_empty() {
5268 let old_head = selection.head();
5269 let mut new_head =
5270 movement::left(&display_map, old_head.to_display_point(&display_map))
5271 .to_point(&display_map);
5272 if let Some((buffer, line_buffer_range)) = display_map
5273 .buffer_snapshot
5274 .buffer_line_for_row(MultiBufferRow(old_head.row))
5275 {
5276 let indent_size =
5277 buffer.indent_size_for_line(line_buffer_range.start.row);
5278 let indent_len = match indent_size.kind {
5279 IndentKind::Space => {
5280 buffer.settings_at(line_buffer_range.start, cx).tab_size
5281 }
5282 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5283 };
5284 if old_head.column <= indent_size.len && old_head.column > 0 {
5285 let indent_len = indent_len.get();
5286 new_head = cmp::min(
5287 new_head,
5288 MultiBufferPoint::new(
5289 old_head.row,
5290 ((old_head.column - 1) / indent_len) * indent_len,
5291 ),
5292 );
5293 }
5294 }
5295
5296 selection.set_head(new_head, SelectionGoal::None);
5297 }
5298 }
5299 }
5300
5301 this.signature_help_state.set_backspace_pressed(true);
5302 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5303 this.insert("", cx);
5304 let empty_str: Arc<str> = Arc::from("");
5305 for (buffer, edits) in linked_ranges {
5306 let snapshot = buffer.read(cx).snapshot();
5307 use text::ToPoint as TP;
5308
5309 let edits = edits
5310 .into_iter()
5311 .map(|range| {
5312 let end_point = TP::to_point(&range.end, &snapshot);
5313 let mut start_point = TP::to_point(&range.start, &snapshot);
5314
5315 if end_point == start_point {
5316 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5317 .saturating_sub(1);
5318 start_point = TP::to_point(&offset, &snapshot);
5319 };
5320
5321 (start_point..end_point, empty_str.clone())
5322 })
5323 .sorted_by_key(|(range, _)| range.start)
5324 .collect::<Vec<_>>();
5325 buffer.update(cx, |this, cx| {
5326 this.edit(edits, None, cx);
5327 })
5328 }
5329 this.refresh_inline_completion(true, false, cx);
5330 linked_editing_ranges::refresh_linked_ranges(this, cx);
5331 });
5332 }
5333
5334 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5335 self.transact(cx, |this, cx| {
5336 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5337 let line_mode = s.line_mode;
5338 s.move_with(|map, selection| {
5339 if selection.is_empty() && !line_mode {
5340 let cursor = movement::right(map, selection.head());
5341 selection.end = cursor;
5342 selection.reversed = true;
5343 selection.goal = SelectionGoal::None;
5344 }
5345 })
5346 });
5347 this.insert("", cx);
5348 this.refresh_inline_completion(true, false, cx);
5349 });
5350 }
5351
5352 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5353 if self.move_to_prev_snippet_tabstop(cx) {
5354 return;
5355 }
5356
5357 self.outdent(&Outdent, cx);
5358 }
5359
5360 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5361 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5362 return;
5363 }
5364
5365 let mut selections = self.selections.all_adjusted(cx);
5366 let buffer = self.buffer.read(cx);
5367 let snapshot = buffer.snapshot(cx);
5368 let rows_iter = selections.iter().map(|s| s.head().row);
5369 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5370
5371 let mut edits = Vec::new();
5372 let mut prev_edited_row = 0;
5373 let mut row_delta = 0;
5374 for selection in &mut selections {
5375 if selection.start.row != prev_edited_row {
5376 row_delta = 0;
5377 }
5378 prev_edited_row = selection.end.row;
5379
5380 // If the selection is non-empty, then increase the indentation of the selected lines.
5381 if !selection.is_empty() {
5382 row_delta =
5383 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5384 continue;
5385 }
5386
5387 // If the selection is empty and the cursor is in the leading whitespace before the
5388 // suggested indentation, then auto-indent the line.
5389 let cursor = selection.head();
5390 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5391 if let Some(suggested_indent) =
5392 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5393 {
5394 if cursor.column < suggested_indent.len
5395 && cursor.column <= current_indent.len
5396 && current_indent.len <= suggested_indent.len
5397 {
5398 selection.start = Point::new(cursor.row, suggested_indent.len);
5399 selection.end = selection.start;
5400 if row_delta == 0 {
5401 edits.extend(Buffer::edit_for_indent_size_adjustment(
5402 cursor.row,
5403 current_indent,
5404 suggested_indent,
5405 ));
5406 row_delta = suggested_indent.len - current_indent.len;
5407 }
5408 continue;
5409 }
5410 }
5411
5412 // Otherwise, insert a hard or soft tab.
5413 let settings = buffer.settings_at(cursor, cx);
5414 let tab_size = if settings.hard_tabs {
5415 IndentSize::tab()
5416 } else {
5417 let tab_size = settings.tab_size.get();
5418 let char_column = snapshot
5419 .text_for_range(Point::new(cursor.row, 0)..cursor)
5420 .flat_map(str::chars)
5421 .count()
5422 + row_delta as usize;
5423 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5424 IndentSize::spaces(chars_to_next_tab_stop)
5425 };
5426 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5427 selection.end = selection.start;
5428 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5429 row_delta += tab_size.len;
5430 }
5431
5432 self.transact(cx, |this, cx| {
5433 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5434 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5435 this.refresh_inline_completion(true, false, cx);
5436 });
5437 }
5438
5439 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5440 if self.read_only(cx) {
5441 return;
5442 }
5443 let mut selections = self.selections.all::<Point>(cx);
5444 let mut prev_edited_row = 0;
5445 let mut row_delta = 0;
5446 let mut edits = Vec::new();
5447 let buffer = self.buffer.read(cx);
5448 let snapshot = buffer.snapshot(cx);
5449 for selection in &mut selections {
5450 if selection.start.row != prev_edited_row {
5451 row_delta = 0;
5452 }
5453 prev_edited_row = selection.end.row;
5454
5455 row_delta =
5456 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5457 }
5458
5459 self.transact(cx, |this, cx| {
5460 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5461 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5462 });
5463 }
5464
5465 fn indent_selection(
5466 buffer: &MultiBuffer,
5467 snapshot: &MultiBufferSnapshot,
5468 selection: &mut Selection<Point>,
5469 edits: &mut Vec<(Range<Point>, String)>,
5470 delta_for_start_row: u32,
5471 cx: &AppContext,
5472 ) -> u32 {
5473 let settings = buffer.settings_at(selection.start, cx);
5474 let tab_size = settings.tab_size.get();
5475 let indent_kind = if settings.hard_tabs {
5476 IndentKind::Tab
5477 } else {
5478 IndentKind::Space
5479 };
5480 let mut start_row = selection.start.row;
5481 let mut end_row = selection.end.row + 1;
5482
5483 // If a selection ends at the beginning of a line, don't indent
5484 // that last line.
5485 if selection.end.column == 0 && selection.end.row > selection.start.row {
5486 end_row -= 1;
5487 }
5488
5489 // Avoid re-indenting a row that has already been indented by a
5490 // previous selection, but still update this selection's column
5491 // to reflect that indentation.
5492 if delta_for_start_row > 0 {
5493 start_row += 1;
5494 selection.start.column += delta_for_start_row;
5495 if selection.end.row == selection.start.row {
5496 selection.end.column += delta_for_start_row;
5497 }
5498 }
5499
5500 let mut delta_for_end_row = 0;
5501 let has_multiple_rows = start_row + 1 != end_row;
5502 for row in start_row..end_row {
5503 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5504 let indent_delta = match (current_indent.kind, indent_kind) {
5505 (IndentKind::Space, IndentKind::Space) => {
5506 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5507 IndentSize::spaces(columns_to_next_tab_stop)
5508 }
5509 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5510 (_, IndentKind::Tab) => IndentSize::tab(),
5511 };
5512
5513 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5514 0
5515 } else {
5516 selection.start.column
5517 };
5518 let row_start = Point::new(row, start);
5519 edits.push((
5520 row_start..row_start,
5521 indent_delta.chars().collect::<String>(),
5522 ));
5523
5524 // Update this selection's endpoints to reflect the indentation.
5525 if row == selection.start.row {
5526 selection.start.column += indent_delta.len;
5527 }
5528 if row == selection.end.row {
5529 selection.end.column += indent_delta.len;
5530 delta_for_end_row = indent_delta.len;
5531 }
5532 }
5533
5534 if selection.start.row == selection.end.row {
5535 delta_for_start_row + delta_for_end_row
5536 } else {
5537 delta_for_end_row
5538 }
5539 }
5540
5541 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5542 if self.read_only(cx) {
5543 return;
5544 }
5545 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5546 let selections = self.selections.all::<Point>(cx);
5547 let mut deletion_ranges = Vec::new();
5548 let mut last_outdent = None;
5549 {
5550 let buffer = self.buffer.read(cx);
5551 let snapshot = buffer.snapshot(cx);
5552 for selection in &selections {
5553 let settings = buffer.settings_at(selection.start, cx);
5554 let tab_size = settings.tab_size.get();
5555 let mut rows = selection.spanned_rows(false, &display_map);
5556
5557 // Avoid re-outdenting a row that has already been outdented by a
5558 // previous selection.
5559 if let Some(last_row) = last_outdent {
5560 if last_row == rows.start {
5561 rows.start = rows.start.next_row();
5562 }
5563 }
5564 let has_multiple_rows = rows.len() > 1;
5565 for row in rows.iter_rows() {
5566 let indent_size = snapshot.indent_size_for_line(row);
5567 if indent_size.len > 0 {
5568 let deletion_len = match indent_size.kind {
5569 IndentKind::Space => {
5570 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5571 if columns_to_prev_tab_stop == 0 {
5572 tab_size
5573 } else {
5574 columns_to_prev_tab_stop
5575 }
5576 }
5577 IndentKind::Tab => 1,
5578 };
5579 let start = if has_multiple_rows
5580 || deletion_len > selection.start.column
5581 || indent_size.len < selection.start.column
5582 {
5583 0
5584 } else {
5585 selection.start.column - deletion_len
5586 };
5587 deletion_ranges.push(
5588 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5589 );
5590 last_outdent = Some(row);
5591 }
5592 }
5593 }
5594 }
5595
5596 self.transact(cx, |this, cx| {
5597 this.buffer.update(cx, |buffer, cx| {
5598 let empty_str: Arc<str> = Arc::default();
5599 buffer.edit(
5600 deletion_ranges
5601 .into_iter()
5602 .map(|range| (range, empty_str.clone())),
5603 None,
5604 cx,
5605 );
5606 });
5607 let selections = this.selections.all::<usize>(cx);
5608 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5609 });
5610 }
5611
5612 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
5613 if self.read_only(cx) {
5614 return;
5615 }
5616 let selections = self
5617 .selections
5618 .all::<usize>(cx)
5619 .into_iter()
5620 .map(|s| s.range());
5621
5622 self.transact(cx, |this, cx| {
5623 this.buffer.update(cx, |buffer, cx| {
5624 buffer.autoindent_ranges(selections, cx);
5625 });
5626 let selections = this.selections.all::<usize>(cx);
5627 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5628 });
5629 }
5630
5631 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5632 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5633 let selections = self.selections.all::<Point>(cx);
5634
5635 let mut new_cursors = Vec::new();
5636 let mut edit_ranges = Vec::new();
5637 let mut selections = selections.iter().peekable();
5638 while let Some(selection) = selections.next() {
5639 let mut rows = selection.spanned_rows(false, &display_map);
5640 let goal_display_column = selection.head().to_display_point(&display_map).column();
5641
5642 // Accumulate contiguous regions of rows that we want to delete.
5643 while let Some(next_selection) = selections.peek() {
5644 let next_rows = next_selection.spanned_rows(false, &display_map);
5645 if next_rows.start <= rows.end {
5646 rows.end = next_rows.end;
5647 selections.next().unwrap();
5648 } else {
5649 break;
5650 }
5651 }
5652
5653 let buffer = &display_map.buffer_snapshot;
5654 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5655 let edit_end;
5656 let cursor_buffer_row;
5657 if buffer.max_point().row >= rows.end.0 {
5658 // If there's a line after the range, delete the \n from the end of the row range
5659 // and position the cursor on the next line.
5660 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5661 cursor_buffer_row = rows.end;
5662 } else {
5663 // If there isn't a line after the range, delete the \n from the line before the
5664 // start of the row range and position the cursor there.
5665 edit_start = edit_start.saturating_sub(1);
5666 edit_end = buffer.len();
5667 cursor_buffer_row = rows.start.previous_row();
5668 }
5669
5670 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5671 *cursor.column_mut() =
5672 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5673
5674 new_cursors.push((
5675 selection.id,
5676 buffer.anchor_after(cursor.to_point(&display_map)),
5677 ));
5678 edit_ranges.push(edit_start..edit_end);
5679 }
5680
5681 self.transact(cx, |this, cx| {
5682 let buffer = this.buffer.update(cx, |buffer, cx| {
5683 let empty_str: Arc<str> = Arc::default();
5684 buffer.edit(
5685 edit_ranges
5686 .into_iter()
5687 .map(|range| (range, empty_str.clone())),
5688 None,
5689 cx,
5690 );
5691 buffer.snapshot(cx)
5692 });
5693 let new_selections = new_cursors
5694 .into_iter()
5695 .map(|(id, cursor)| {
5696 let cursor = cursor.to_point(&buffer);
5697 Selection {
5698 id,
5699 start: cursor,
5700 end: cursor,
5701 reversed: false,
5702 goal: SelectionGoal::None,
5703 }
5704 })
5705 .collect();
5706
5707 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5708 s.select(new_selections);
5709 });
5710 });
5711 }
5712
5713 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5714 if self.read_only(cx) {
5715 return;
5716 }
5717 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5718 for selection in self.selections.all::<Point>(cx) {
5719 let start = MultiBufferRow(selection.start.row);
5720 // Treat single line selections as if they include the next line. Otherwise this action
5721 // would do nothing for single line selections individual cursors.
5722 let end = if selection.start.row == selection.end.row {
5723 MultiBufferRow(selection.start.row + 1)
5724 } else {
5725 MultiBufferRow(selection.end.row)
5726 };
5727
5728 if let Some(last_row_range) = row_ranges.last_mut() {
5729 if start <= last_row_range.end {
5730 last_row_range.end = end;
5731 continue;
5732 }
5733 }
5734 row_ranges.push(start..end);
5735 }
5736
5737 let snapshot = self.buffer.read(cx).snapshot(cx);
5738 let mut cursor_positions = Vec::new();
5739 for row_range in &row_ranges {
5740 let anchor = snapshot.anchor_before(Point::new(
5741 row_range.end.previous_row().0,
5742 snapshot.line_len(row_range.end.previous_row()),
5743 ));
5744 cursor_positions.push(anchor..anchor);
5745 }
5746
5747 self.transact(cx, |this, cx| {
5748 for row_range in row_ranges.into_iter().rev() {
5749 for row in row_range.iter_rows().rev() {
5750 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5751 let next_line_row = row.next_row();
5752 let indent = snapshot.indent_size_for_line(next_line_row);
5753 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5754
5755 let replace = if snapshot.line_len(next_line_row) > indent.len {
5756 " "
5757 } else {
5758 ""
5759 };
5760
5761 this.buffer.update(cx, |buffer, cx| {
5762 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5763 });
5764 }
5765 }
5766
5767 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5768 s.select_anchor_ranges(cursor_positions)
5769 });
5770 });
5771 }
5772
5773 pub fn sort_lines_case_sensitive(
5774 &mut self,
5775 _: &SortLinesCaseSensitive,
5776 cx: &mut ViewContext<Self>,
5777 ) {
5778 self.manipulate_lines(cx, |lines| lines.sort())
5779 }
5780
5781 pub fn sort_lines_case_insensitive(
5782 &mut self,
5783 _: &SortLinesCaseInsensitive,
5784 cx: &mut ViewContext<Self>,
5785 ) {
5786 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5787 }
5788
5789 pub fn unique_lines_case_insensitive(
5790 &mut self,
5791 _: &UniqueLinesCaseInsensitive,
5792 cx: &mut ViewContext<Self>,
5793 ) {
5794 self.manipulate_lines(cx, |lines| {
5795 let mut seen = HashSet::default();
5796 lines.retain(|line| seen.insert(line.to_lowercase()));
5797 })
5798 }
5799
5800 pub fn unique_lines_case_sensitive(
5801 &mut self,
5802 _: &UniqueLinesCaseSensitive,
5803 cx: &mut ViewContext<Self>,
5804 ) {
5805 self.manipulate_lines(cx, |lines| {
5806 let mut seen = HashSet::default();
5807 lines.retain(|line| seen.insert(*line));
5808 })
5809 }
5810
5811 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
5812 let mut revert_changes = HashMap::default();
5813 let snapshot = self.snapshot(cx);
5814 for hunk in hunks_for_ranges(
5815 Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter(),
5816 &snapshot,
5817 ) {
5818 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5819 }
5820 if !revert_changes.is_empty() {
5821 self.transact(cx, |editor, cx| {
5822 editor.revert(revert_changes, cx);
5823 });
5824 }
5825 }
5826
5827 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
5828 let Some(project) = self.project.clone() else {
5829 return;
5830 };
5831 self.reload(project, cx).detach_and_notify_err(cx);
5832 }
5833
5834 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5835 let revert_changes = self.gather_revert_changes(&self.selections.all(cx), cx);
5836 if !revert_changes.is_empty() {
5837 self.transact(cx, |editor, cx| {
5838 editor.revert(revert_changes, cx);
5839 });
5840 }
5841 }
5842
5843 fn revert_hunk(&mut self, hunk: HoveredHunk, cx: &mut ViewContext<Editor>) {
5844 let snapshot = self.buffer.read(cx).read(cx);
5845 if let Some(hunk) = crate::hunk_diff::to_diff_hunk(&hunk, &snapshot) {
5846 drop(snapshot);
5847 let mut revert_changes = HashMap::default();
5848 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5849 if !revert_changes.is_empty() {
5850 self.revert(revert_changes, cx)
5851 }
5852 }
5853 }
5854
5855 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5856 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5857 let project_path = buffer.read(cx).project_path(cx)?;
5858 let project = self.project.as_ref()?.read(cx);
5859 let entry = project.entry_for_path(&project_path, cx)?;
5860 let parent = match &entry.canonical_path {
5861 Some(canonical_path) => canonical_path.to_path_buf(),
5862 None => project.absolute_path(&project_path, cx)?,
5863 }
5864 .parent()?
5865 .to_path_buf();
5866 Some(parent)
5867 }) {
5868 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5869 }
5870 }
5871
5872 fn gather_revert_changes(
5873 &mut self,
5874 selections: &[Selection<Point>],
5875 cx: &mut ViewContext<'_, Editor>,
5876 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5877 let mut revert_changes = HashMap::default();
5878 let snapshot = self.snapshot(cx);
5879 for hunk in hunks_for_selections(&snapshot, selections) {
5880 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5881 }
5882 revert_changes
5883 }
5884
5885 pub fn prepare_revert_change(
5886 &mut self,
5887 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5888 hunk: &MultiBufferDiffHunk,
5889 cx: &AppContext,
5890 ) -> Option<()> {
5891 let buffer = self.buffer.read(cx).buffer(hunk.buffer_id)?;
5892 let buffer = buffer.read(cx);
5893 let change_set = &self.diff_map.diff_bases.get(&hunk.buffer_id)?.change_set;
5894 let original_text = change_set
5895 .read(cx)
5896 .base_text
5897 .as_ref()?
5898 .read(cx)
5899 .as_rope()
5900 .slice(hunk.diff_base_byte_range.clone());
5901 let buffer_snapshot = buffer.snapshot();
5902 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5903 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5904 probe
5905 .0
5906 .start
5907 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5908 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5909 }) {
5910 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5911 Some(())
5912 } else {
5913 None
5914 }
5915 }
5916
5917 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5918 self.manipulate_lines(cx, |lines| lines.reverse())
5919 }
5920
5921 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5922 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5923 }
5924
5925 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5926 where
5927 Fn: FnMut(&mut Vec<&str>),
5928 {
5929 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5930 let buffer = self.buffer.read(cx).snapshot(cx);
5931
5932 let mut edits = Vec::new();
5933
5934 let selections = self.selections.all::<Point>(cx);
5935 let mut selections = selections.iter().peekable();
5936 let mut contiguous_row_selections = Vec::new();
5937 let mut new_selections = Vec::new();
5938 let mut added_lines = 0;
5939 let mut removed_lines = 0;
5940
5941 while let Some(selection) = selections.next() {
5942 let (start_row, end_row) = consume_contiguous_rows(
5943 &mut contiguous_row_selections,
5944 selection,
5945 &display_map,
5946 &mut selections,
5947 );
5948
5949 let start_point = Point::new(start_row.0, 0);
5950 let end_point = Point::new(
5951 end_row.previous_row().0,
5952 buffer.line_len(end_row.previous_row()),
5953 );
5954 let text = buffer
5955 .text_for_range(start_point..end_point)
5956 .collect::<String>();
5957
5958 let mut lines = text.split('\n').collect_vec();
5959
5960 let lines_before = lines.len();
5961 callback(&mut lines);
5962 let lines_after = lines.len();
5963
5964 edits.push((start_point..end_point, lines.join("\n")));
5965
5966 // Selections must change based on added and removed line count
5967 let start_row =
5968 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
5969 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
5970 new_selections.push(Selection {
5971 id: selection.id,
5972 start: start_row,
5973 end: end_row,
5974 goal: SelectionGoal::None,
5975 reversed: selection.reversed,
5976 });
5977
5978 if lines_after > lines_before {
5979 added_lines += lines_after - lines_before;
5980 } else if lines_before > lines_after {
5981 removed_lines += lines_before - lines_after;
5982 }
5983 }
5984
5985 self.transact(cx, |this, cx| {
5986 let buffer = this.buffer.update(cx, |buffer, cx| {
5987 buffer.edit(edits, None, cx);
5988 buffer.snapshot(cx)
5989 });
5990
5991 // Recalculate offsets on newly edited buffer
5992 let new_selections = new_selections
5993 .iter()
5994 .map(|s| {
5995 let start_point = Point::new(s.start.0, 0);
5996 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
5997 Selection {
5998 id: s.id,
5999 start: buffer.point_to_offset(start_point),
6000 end: buffer.point_to_offset(end_point),
6001 goal: s.goal,
6002 reversed: s.reversed,
6003 }
6004 })
6005 .collect();
6006
6007 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6008 s.select(new_selections);
6009 });
6010
6011 this.request_autoscroll(Autoscroll::fit(), cx);
6012 });
6013 }
6014
6015 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6016 self.manipulate_text(cx, |text| text.to_uppercase())
6017 }
6018
6019 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6020 self.manipulate_text(cx, |text| text.to_lowercase())
6021 }
6022
6023 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6024 self.manipulate_text(cx, |text| {
6025 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6026 // https://github.com/rutrum/convert-case/issues/16
6027 text.split('\n')
6028 .map(|line| line.to_case(Case::Title))
6029 .join("\n")
6030 })
6031 }
6032
6033 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6034 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6035 }
6036
6037 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6038 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6039 }
6040
6041 pub fn convert_to_upper_camel_case(
6042 &mut self,
6043 _: &ConvertToUpperCamelCase,
6044 cx: &mut ViewContext<Self>,
6045 ) {
6046 self.manipulate_text(cx, |text| {
6047 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6048 // https://github.com/rutrum/convert-case/issues/16
6049 text.split('\n')
6050 .map(|line| line.to_case(Case::UpperCamel))
6051 .join("\n")
6052 })
6053 }
6054
6055 pub fn convert_to_lower_camel_case(
6056 &mut self,
6057 _: &ConvertToLowerCamelCase,
6058 cx: &mut ViewContext<Self>,
6059 ) {
6060 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6061 }
6062
6063 pub fn convert_to_opposite_case(
6064 &mut self,
6065 _: &ConvertToOppositeCase,
6066 cx: &mut ViewContext<Self>,
6067 ) {
6068 self.manipulate_text(cx, |text| {
6069 text.chars()
6070 .fold(String::with_capacity(text.len()), |mut t, c| {
6071 if c.is_uppercase() {
6072 t.extend(c.to_lowercase());
6073 } else {
6074 t.extend(c.to_uppercase());
6075 }
6076 t
6077 })
6078 })
6079 }
6080
6081 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6082 where
6083 Fn: FnMut(&str) -> String,
6084 {
6085 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6086 let buffer = self.buffer.read(cx).snapshot(cx);
6087
6088 let mut new_selections = Vec::new();
6089 let mut edits = Vec::new();
6090 let mut selection_adjustment = 0i32;
6091
6092 for selection in self.selections.all::<usize>(cx) {
6093 let selection_is_empty = selection.is_empty();
6094
6095 let (start, end) = if selection_is_empty {
6096 let word_range = movement::surrounding_word(
6097 &display_map,
6098 selection.start.to_display_point(&display_map),
6099 );
6100 let start = word_range.start.to_offset(&display_map, Bias::Left);
6101 let end = word_range.end.to_offset(&display_map, Bias::Left);
6102 (start, end)
6103 } else {
6104 (selection.start, selection.end)
6105 };
6106
6107 let text = buffer.text_for_range(start..end).collect::<String>();
6108 let old_length = text.len() as i32;
6109 let text = callback(&text);
6110
6111 new_selections.push(Selection {
6112 start: (start as i32 - selection_adjustment) as usize,
6113 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6114 goal: SelectionGoal::None,
6115 ..selection
6116 });
6117
6118 selection_adjustment += old_length - text.len() as i32;
6119
6120 edits.push((start..end, text));
6121 }
6122
6123 self.transact(cx, |this, cx| {
6124 this.buffer.update(cx, |buffer, cx| {
6125 buffer.edit(edits, None, cx);
6126 });
6127
6128 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6129 s.select(new_selections);
6130 });
6131
6132 this.request_autoscroll(Autoscroll::fit(), cx);
6133 });
6134 }
6135
6136 pub fn duplicate(&mut self, upwards: bool, whole_lines: bool, cx: &mut ViewContext<Self>) {
6137 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6138 let buffer = &display_map.buffer_snapshot;
6139 let selections = self.selections.all::<Point>(cx);
6140
6141 let mut edits = Vec::new();
6142 let mut selections_iter = selections.iter().peekable();
6143 while let Some(selection) = selections_iter.next() {
6144 let mut rows = selection.spanned_rows(false, &display_map);
6145 // duplicate line-wise
6146 if whole_lines || selection.start == selection.end {
6147 // Avoid duplicating the same lines twice.
6148 while let Some(next_selection) = selections_iter.peek() {
6149 let next_rows = next_selection.spanned_rows(false, &display_map);
6150 if next_rows.start < rows.end {
6151 rows.end = next_rows.end;
6152 selections_iter.next().unwrap();
6153 } else {
6154 break;
6155 }
6156 }
6157
6158 // Copy the text from the selected row region and splice it either at the start
6159 // or end of the region.
6160 let start = Point::new(rows.start.0, 0);
6161 let end = Point::new(
6162 rows.end.previous_row().0,
6163 buffer.line_len(rows.end.previous_row()),
6164 );
6165 let text = buffer
6166 .text_for_range(start..end)
6167 .chain(Some("\n"))
6168 .collect::<String>();
6169 let insert_location = if upwards {
6170 Point::new(rows.end.0, 0)
6171 } else {
6172 start
6173 };
6174 edits.push((insert_location..insert_location, text));
6175 } else {
6176 // duplicate character-wise
6177 let start = selection.start;
6178 let end = selection.end;
6179 let text = buffer.text_for_range(start..end).collect::<String>();
6180 edits.push((selection.end..selection.end, text));
6181 }
6182 }
6183
6184 self.transact(cx, |this, cx| {
6185 this.buffer.update(cx, |buffer, cx| {
6186 buffer.edit(edits, None, cx);
6187 });
6188
6189 this.request_autoscroll(Autoscroll::fit(), cx);
6190 });
6191 }
6192
6193 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6194 self.duplicate(true, true, cx);
6195 }
6196
6197 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6198 self.duplicate(false, true, cx);
6199 }
6200
6201 pub fn duplicate_selection(&mut self, _: &DuplicateSelection, cx: &mut ViewContext<Self>) {
6202 self.duplicate(false, false, cx);
6203 }
6204
6205 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6206 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6207 let buffer = self.buffer.read(cx).snapshot(cx);
6208
6209 let mut edits = Vec::new();
6210 let mut unfold_ranges = Vec::new();
6211 let mut refold_creases = Vec::new();
6212
6213 let selections = self.selections.all::<Point>(cx);
6214 let mut selections = selections.iter().peekable();
6215 let mut contiguous_row_selections = Vec::new();
6216 let mut new_selections = Vec::new();
6217
6218 while let Some(selection) = selections.next() {
6219 // Find all the selections that span a contiguous row range
6220 let (start_row, end_row) = consume_contiguous_rows(
6221 &mut contiguous_row_selections,
6222 selection,
6223 &display_map,
6224 &mut selections,
6225 );
6226
6227 // Move the text spanned by the row range to be before the line preceding the row range
6228 if start_row.0 > 0 {
6229 let range_to_move = Point::new(
6230 start_row.previous_row().0,
6231 buffer.line_len(start_row.previous_row()),
6232 )
6233 ..Point::new(
6234 end_row.previous_row().0,
6235 buffer.line_len(end_row.previous_row()),
6236 );
6237 let insertion_point = display_map
6238 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6239 .0;
6240
6241 // Don't move lines across excerpts
6242 if buffer
6243 .excerpt_boundaries_in_range((
6244 Bound::Excluded(insertion_point),
6245 Bound::Included(range_to_move.end),
6246 ))
6247 .next()
6248 .is_none()
6249 {
6250 let text = buffer
6251 .text_for_range(range_to_move.clone())
6252 .flat_map(|s| s.chars())
6253 .skip(1)
6254 .chain(['\n'])
6255 .collect::<String>();
6256
6257 edits.push((
6258 buffer.anchor_after(range_to_move.start)
6259 ..buffer.anchor_before(range_to_move.end),
6260 String::new(),
6261 ));
6262 let insertion_anchor = buffer.anchor_after(insertion_point);
6263 edits.push((insertion_anchor..insertion_anchor, text));
6264
6265 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6266
6267 // Move selections up
6268 new_selections.extend(contiguous_row_selections.drain(..).map(
6269 |mut selection| {
6270 selection.start.row -= row_delta;
6271 selection.end.row -= row_delta;
6272 selection
6273 },
6274 ));
6275
6276 // Move folds up
6277 unfold_ranges.push(range_to_move.clone());
6278 for fold in display_map.folds_in_range(
6279 buffer.anchor_before(range_to_move.start)
6280 ..buffer.anchor_after(range_to_move.end),
6281 ) {
6282 let mut start = fold.range.start.to_point(&buffer);
6283 let mut end = fold.range.end.to_point(&buffer);
6284 start.row -= row_delta;
6285 end.row -= row_delta;
6286 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6287 }
6288 }
6289 }
6290
6291 // If we didn't move line(s), preserve the existing selections
6292 new_selections.append(&mut contiguous_row_selections);
6293 }
6294
6295 self.transact(cx, |this, cx| {
6296 this.unfold_ranges(&unfold_ranges, true, true, cx);
6297 this.buffer.update(cx, |buffer, cx| {
6298 for (range, text) in edits {
6299 buffer.edit([(range, text)], None, cx);
6300 }
6301 });
6302 this.fold_creases(refold_creases, true, cx);
6303 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6304 s.select(new_selections);
6305 })
6306 });
6307 }
6308
6309 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6310 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6311 let buffer = self.buffer.read(cx).snapshot(cx);
6312
6313 let mut edits = Vec::new();
6314 let mut unfold_ranges = Vec::new();
6315 let mut refold_creases = Vec::new();
6316
6317 let selections = self.selections.all::<Point>(cx);
6318 let mut selections = selections.iter().peekable();
6319 let mut contiguous_row_selections = Vec::new();
6320 let mut new_selections = Vec::new();
6321
6322 while let Some(selection) = selections.next() {
6323 // Find all the selections that span a contiguous row range
6324 let (start_row, end_row) = consume_contiguous_rows(
6325 &mut contiguous_row_selections,
6326 selection,
6327 &display_map,
6328 &mut selections,
6329 );
6330
6331 // Move the text spanned by the row range to be after the last line of the row range
6332 if end_row.0 <= buffer.max_point().row {
6333 let range_to_move =
6334 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6335 let insertion_point = display_map
6336 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6337 .0;
6338
6339 // Don't move lines across excerpt boundaries
6340 if buffer
6341 .excerpt_boundaries_in_range((
6342 Bound::Excluded(range_to_move.start),
6343 Bound::Included(insertion_point),
6344 ))
6345 .next()
6346 .is_none()
6347 {
6348 let mut text = String::from("\n");
6349 text.extend(buffer.text_for_range(range_to_move.clone()));
6350 text.pop(); // Drop trailing newline
6351 edits.push((
6352 buffer.anchor_after(range_to_move.start)
6353 ..buffer.anchor_before(range_to_move.end),
6354 String::new(),
6355 ));
6356 let insertion_anchor = buffer.anchor_after(insertion_point);
6357 edits.push((insertion_anchor..insertion_anchor, text));
6358
6359 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6360
6361 // Move selections down
6362 new_selections.extend(contiguous_row_selections.drain(..).map(
6363 |mut selection| {
6364 selection.start.row += row_delta;
6365 selection.end.row += row_delta;
6366 selection
6367 },
6368 ));
6369
6370 // Move folds down
6371 unfold_ranges.push(range_to_move.clone());
6372 for fold in display_map.folds_in_range(
6373 buffer.anchor_before(range_to_move.start)
6374 ..buffer.anchor_after(range_to_move.end),
6375 ) {
6376 let mut start = fold.range.start.to_point(&buffer);
6377 let mut end = fold.range.end.to_point(&buffer);
6378 start.row += row_delta;
6379 end.row += row_delta;
6380 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6381 }
6382 }
6383 }
6384
6385 // If we didn't move line(s), preserve the existing selections
6386 new_selections.append(&mut contiguous_row_selections);
6387 }
6388
6389 self.transact(cx, |this, cx| {
6390 this.unfold_ranges(&unfold_ranges, true, true, cx);
6391 this.buffer.update(cx, |buffer, cx| {
6392 for (range, text) in edits {
6393 buffer.edit([(range, text)], None, cx);
6394 }
6395 });
6396 this.fold_creases(refold_creases, true, cx);
6397 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6398 });
6399 }
6400
6401 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6402 let text_layout_details = &self.text_layout_details(cx);
6403 self.transact(cx, |this, cx| {
6404 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6405 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6406 let line_mode = s.line_mode;
6407 s.move_with(|display_map, selection| {
6408 if !selection.is_empty() || line_mode {
6409 return;
6410 }
6411
6412 let mut head = selection.head();
6413 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6414 if head.column() == display_map.line_len(head.row()) {
6415 transpose_offset = display_map
6416 .buffer_snapshot
6417 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6418 }
6419
6420 if transpose_offset == 0 {
6421 return;
6422 }
6423
6424 *head.column_mut() += 1;
6425 head = display_map.clip_point(head, Bias::Right);
6426 let goal = SelectionGoal::HorizontalPosition(
6427 display_map
6428 .x_for_display_point(head, text_layout_details)
6429 .into(),
6430 );
6431 selection.collapse_to(head, goal);
6432
6433 let transpose_start = display_map
6434 .buffer_snapshot
6435 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6436 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6437 let transpose_end = display_map
6438 .buffer_snapshot
6439 .clip_offset(transpose_offset + 1, Bias::Right);
6440 if let Some(ch) =
6441 display_map.buffer_snapshot.chars_at(transpose_start).next()
6442 {
6443 edits.push((transpose_start..transpose_offset, String::new()));
6444 edits.push((transpose_end..transpose_end, ch.to_string()));
6445 }
6446 }
6447 });
6448 edits
6449 });
6450 this.buffer
6451 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6452 let selections = this.selections.all::<usize>(cx);
6453 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6454 s.select(selections);
6455 });
6456 });
6457 }
6458
6459 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6460 self.rewrap_impl(IsVimMode::No, cx)
6461 }
6462
6463 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
6464 let buffer = self.buffer.read(cx).snapshot(cx);
6465 let selections = self.selections.all::<Point>(cx);
6466 let mut selections = selections.iter().peekable();
6467
6468 let mut edits = Vec::new();
6469 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6470
6471 while let Some(selection) = selections.next() {
6472 let mut start_row = selection.start.row;
6473 let mut end_row = selection.end.row;
6474
6475 // Skip selections that overlap with a range that has already been rewrapped.
6476 let selection_range = start_row..end_row;
6477 if rewrapped_row_ranges
6478 .iter()
6479 .any(|range| range.overlaps(&selection_range))
6480 {
6481 continue;
6482 }
6483
6484 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
6485
6486 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6487 match language_scope.language_name().0.as_ref() {
6488 "Markdown" | "Plain Text" => {
6489 should_rewrap = true;
6490 }
6491 _ => {}
6492 }
6493 }
6494
6495 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
6496
6497 // Since not all lines in the selection may be at the same indent
6498 // level, choose the indent size that is the most common between all
6499 // of the lines.
6500 //
6501 // If there is a tie, we use the deepest indent.
6502 let (indent_size, indent_end) = {
6503 let mut indent_size_occurrences = HashMap::default();
6504 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6505
6506 for row in start_row..=end_row {
6507 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6508 rows_by_indent_size.entry(indent).or_default().push(row);
6509 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6510 }
6511
6512 let indent_size = indent_size_occurrences
6513 .into_iter()
6514 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
6515 .map(|(indent, _)| indent)
6516 .unwrap_or_default();
6517 let row = rows_by_indent_size[&indent_size][0];
6518 let indent_end = Point::new(row, indent_size.len);
6519
6520 (indent_size, indent_end)
6521 };
6522
6523 let mut line_prefix = indent_size.chars().collect::<String>();
6524
6525 if let Some(comment_prefix) =
6526 buffer
6527 .language_scope_at(selection.head())
6528 .and_then(|language| {
6529 language
6530 .line_comment_prefixes()
6531 .iter()
6532 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6533 .cloned()
6534 })
6535 {
6536 line_prefix.push_str(&comment_prefix);
6537 should_rewrap = true;
6538 }
6539
6540 if !should_rewrap {
6541 continue;
6542 }
6543
6544 if selection.is_empty() {
6545 'expand_upwards: while start_row > 0 {
6546 let prev_row = start_row - 1;
6547 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6548 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6549 {
6550 start_row = prev_row;
6551 } else {
6552 break 'expand_upwards;
6553 }
6554 }
6555
6556 'expand_downwards: while end_row < buffer.max_point().row {
6557 let next_row = end_row + 1;
6558 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6559 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6560 {
6561 end_row = next_row;
6562 } else {
6563 break 'expand_downwards;
6564 }
6565 }
6566 }
6567
6568 let start = Point::new(start_row, 0);
6569 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6570 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6571 let Some(lines_without_prefixes) = selection_text
6572 .lines()
6573 .map(|line| {
6574 line.strip_prefix(&line_prefix)
6575 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6576 .ok_or_else(|| {
6577 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6578 })
6579 })
6580 .collect::<Result<Vec<_>, _>>()
6581 .log_err()
6582 else {
6583 continue;
6584 };
6585
6586 let wrap_column = buffer
6587 .settings_at(Point::new(start_row, 0), cx)
6588 .preferred_line_length as usize;
6589 let wrapped_text = wrap_with_prefix(
6590 line_prefix,
6591 lines_without_prefixes.join(" "),
6592 wrap_column,
6593 tab_size,
6594 );
6595
6596 // TODO: should always use char-based diff while still supporting cursor behavior that
6597 // matches vim.
6598 let diff = match is_vim_mode {
6599 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
6600 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
6601 };
6602 let mut offset = start.to_offset(&buffer);
6603 let mut moved_since_edit = true;
6604
6605 for change in diff.iter_all_changes() {
6606 let value = change.value();
6607 match change.tag() {
6608 ChangeTag::Equal => {
6609 offset += value.len();
6610 moved_since_edit = true;
6611 }
6612 ChangeTag::Delete => {
6613 let start = buffer.anchor_after(offset);
6614 let end = buffer.anchor_before(offset + value.len());
6615
6616 if moved_since_edit {
6617 edits.push((start..end, String::new()));
6618 } else {
6619 edits.last_mut().unwrap().0.end = end;
6620 }
6621
6622 offset += value.len();
6623 moved_since_edit = false;
6624 }
6625 ChangeTag::Insert => {
6626 if moved_since_edit {
6627 let anchor = buffer.anchor_after(offset);
6628 edits.push((anchor..anchor, value.to_string()));
6629 } else {
6630 edits.last_mut().unwrap().1.push_str(value);
6631 }
6632
6633 moved_since_edit = false;
6634 }
6635 }
6636 }
6637
6638 rewrapped_row_ranges.push(start_row..=end_row);
6639 }
6640
6641 self.buffer
6642 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6643 }
6644
6645 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
6646 let mut text = String::new();
6647 let buffer = self.buffer.read(cx).snapshot(cx);
6648 let mut selections = self.selections.all::<Point>(cx);
6649 let mut clipboard_selections = Vec::with_capacity(selections.len());
6650 {
6651 let max_point = buffer.max_point();
6652 let mut is_first = true;
6653 for selection in &mut selections {
6654 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6655 if is_entire_line {
6656 selection.start = Point::new(selection.start.row, 0);
6657 if !selection.is_empty() && selection.end.column == 0 {
6658 selection.end = cmp::min(max_point, selection.end);
6659 } else {
6660 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6661 }
6662 selection.goal = SelectionGoal::None;
6663 }
6664 if is_first {
6665 is_first = false;
6666 } else {
6667 text += "\n";
6668 }
6669 let mut len = 0;
6670 for chunk in buffer.text_for_range(selection.start..selection.end) {
6671 text.push_str(chunk);
6672 len += chunk.len();
6673 }
6674 clipboard_selections.push(ClipboardSelection {
6675 len,
6676 is_entire_line,
6677 first_line_indent: buffer
6678 .indent_size_for_line(MultiBufferRow(selection.start.row))
6679 .len,
6680 });
6681 }
6682 }
6683
6684 self.transact(cx, |this, cx| {
6685 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6686 s.select(selections);
6687 });
6688 this.insert("", cx);
6689 });
6690 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
6691 }
6692
6693 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6694 let item = self.cut_common(cx);
6695 cx.write_to_clipboard(item);
6696 }
6697
6698 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
6699 self.change_selections(None, cx, |s| {
6700 s.move_with(|snapshot, sel| {
6701 if sel.is_empty() {
6702 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
6703 }
6704 });
6705 });
6706 let item = self.cut_common(cx);
6707 cx.set_global(KillRing(item))
6708 }
6709
6710 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
6711 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
6712 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
6713 (kill_ring.text().to_string(), kill_ring.metadata_json())
6714 } else {
6715 return;
6716 }
6717 } else {
6718 return;
6719 };
6720 self.do_paste(&text, metadata, false, cx);
6721 }
6722
6723 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6724 let selections = self.selections.all::<Point>(cx);
6725 let buffer = self.buffer.read(cx).read(cx);
6726 let mut text = String::new();
6727
6728 let mut clipboard_selections = Vec::with_capacity(selections.len());
6729 {
6730 let max_point = buffer.max_point();
6731 let mut is_first = true;
6732 for selection in selections.iter() {
6733 let mut start = selection.start;
6734 let mut end = selection.end;
6735 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6736 if is_entire_line {
6737 start = Point::new(start.row, 0);
6738 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6739 }
6740 if is_first {
6741 is_first = false;
6742 } else {
6743 text += "\n";
6744 }
6745 let mut len = 0;
6746 for chunk in buffer.text_for_range(start..end) {
6747 text.push_str(chunk);
6748 len += chunk.len();
6749 }
6750 clipboard_selections.push(ClipboardSelection {
6751 len,
6752 is_entire_line,
6753 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6754 });
6755 }
6756 }
6757
6758 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6759 text,
6760 clipboard_selections,
6761 ));
6762 }
6763
6764 pub fn do_paste(
6765 &mut self,
6766 text: &String,
6767 clipboard_selections: Option<Vec<ClipboardSelection>>,
6768 handle_entire_lines: bool,
6769 cx: &mut ViewContext<Self>,
6770 ) {
6771 if self.read_only(cx) {
6772 return;
6773 }
6774
6775 let clipboard_text = Cow::Borrowed(text);
6776
6777 self.transact(cx, |this, cx| {
6778 if let Some(mut clipboard_selections) = clipboard_selections {
6779 let old_selections = this.selections.all::<usize>(cx);
6780 let all_selections_were_entire_line =
6781 clipboard_selections.iter().all(|s| s.is_entire_line);
6782 let first_selection_indent_column =
6783 clipboard_selections.first().map(|s| s.first_line_indent);
6784 if clipboard_selections.len() != old_selections.len() {
6785 clipboard_selections.drain(..);
6786 }
6787 let cursor_offset = this.selections.last::<usize>(cx).head();
6788 let mut auto_indent_on_paste = true;
6789
6790 this.buffer.update(cx, |buffer, cx| {
6791 let snapshot = buffer.read(cx);
6792 auto_indent_on_paste =
6793 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
6794
6795 let mut start_offset = 0;
6796 let mut edits = Vec::new();
6797 let mut original_indent_columns = Vec::new();
6798 for (ix, selection) in old_selections.iter().enumerate() {
6799 let to_insert;
6800 let entire_line;
6801 let original_indent_column;
6802 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6803 let end_offset = start_offset + clipboard_selection.len;
6804 to_insert = &clipboard_text[start_offset..end_offset];
6805 entire_line = clipboard_selection.is_entire_line;
6806 start_offset = end_offset + 1;
6807 original_indent_column = Some(clipboard_selection.first_line_indent);
6808 } else {
6809 to_insert = clipboard_text.as_str();
6810 entire_line = all_selections_were_entire_line;
6811 original_indent_column = first_selection_indent_column
6812 }
6813
6814 // If the corresponding selection was empty when this slice of the
6815 // clipboard text was written, then the entire line containing the
6816 // selection was copied. If this selection is also currently empty,
6817 // then paste the line before the current line of the buffer.
6818 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6819 let column = selection.start.to_point(&snapshot).column as usize;
6820 let line_start = selection.start - column;
6821 line_start..line_start
6822 } else {
6823 selection.range()
6824 };
6825
6826 edits.push((range, to_insert));
6827 original_indent_columns.extend(original_indent_column);
6828 }
6829 drop(snapshot);
6830
6831 buffer.edit(
6832 edits,
6833 if auto_indent_on_paste {
6834 Some(AutoindentMode::Block {
6835 original_indent_columns,
6836 })
6837 } else {
6838 None
6839 },
6840 cx,
6841 );
6842 });
6843
6844 let selections = this.selections.all::<usize>(cx);
6845 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6846 } else {
6847 this.insert(&clipboard_text, cx);
6848 }
6849 });
6850 }
6851
6852 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6853 if let Some(item) = cx.read_from_clipboard() {
6854 let entries = item.entries();
6855
6856 match entries.first() {
6857 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
6858 // of all the pasted entries.
6859 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
6860 .do_paste(
6861 clipboard_string.text(),
6862 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
6863 true,
6864 cx,
6865 ),
6866 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
6867 }
6868 }
6869 }
6870
6871 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6872 if self.read_only(cx) {
6873 return;
6874 }
6875
6876 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6877 if let Some((selections, _)) =
6878 self.selection_history.transaction(transaction_id).cloned()
6879 {
6880 self.change_selections(None, cx, |s| {
6881 s.select_anchors(selections.to_vec());
6882 });
6883 }
6884 self.request_autoscroll(Autoscroll::fit(), cx);
6885 self.unmark_text(cx);
6886 self.refresh_inline_completion(true, false, cx);
6887 cx.emit(EditorEvent::Edited { transaction_id });
6888 cx.emit(EditorEvent::TransactionUndone { transaction_id });
6889 }
6890 }
6891
6892 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6893 if self.read_only(cx) {
6894 return;
6895 }
6896
6897 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6898 if let Some((_, Some(selections))) =
6899 self.selection_history.transaction(transaction_id).cloned()
6900 {
6901 self.change_selections(None, cx, |s| {
6902 s.select_anchors(selections.to_vec());
6903 });
6904 }
6905 self.request_autoscroll(Autoscroll::fit(), cx);
6906 self.unmark_text(cx);
6907 self.refresh_inline_completion(true, false, cx);
6908 cx.emit(EditorEvent::Edited { transaction_id });
6909 }
6910 }
6911
6912 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6913 self.buffer
6914 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6915 }
6916
6917 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6918 self.buffer
6919 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6920 }
6921
6922 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6923 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6924 let line_mode = s.line_mode;
6925 s.move_with(|map, selection| {
6926 let cursor = if selection.is_empty() && !line_mode {
6927 movement::left(map, selection.start)
6928 } else {
6929 selection.start
6930 };
6931 selection.collapse_to(cursor, SelectionGoal::None);
6932 });
6933 })
6934 }
6935
6936 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6937 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6938 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6939 })
6940 }
6941
6942 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6943 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6944 let line_mode = s.line_mode;
6945 s.move_with(|map, selection| {
6946 let cursor = if selection.is_empty() && !line_mode {
6947 movement::right(map, selection.end)
6948 } else {
6949 selection.end
6950 };
6951 selection.collapse_to(cursor, SelectionGoal::None)
6952 });
6953 })
6954 }
6955
6956 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6957 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6958 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6959 })
6960 }
6961
6962 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6963 if self.take_rename(true, cx).is_some() {
6964 return;
6965 }
6966
6967 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6968 cx.propagate();
6969 return;
6970 }
6971
6972 let text_layout_details = &self.text_layout_details(cx);
6973 let selection_count = self.selections.count();
6974 let first_selection = self.selections.first_anchor();
6975
6976 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6977 let line_mode = s.line_mode;
6978 s.move_with(|map, selection| {
6979 if !selection.is_empty() && !line_mode {
6980 selection.goal = SelectionGoal::None;
6981 }
6982 let (cursor, goal) = movement::up(
6983 map,
6984 selection.start,
6985 selection.goal,
6986 false,
6987 text_layout_details,
6988 );
6989 selection.collapse_to(cursor, goal);
6990 });
6991 });
6992
6993 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
6994 {
6995 cx.propagate();
6996 }
6997 }
6998
6999 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7000 if self.take_rename(true, cx).is_some() {
7001 return;
7002 }
7003
7004 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7005 cx.propagate();
7006 return;
7007 }
7008
7009 let text_layout_details = &self.text_layout_details(cx);
7010
7011 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7012 let line_mode = s.line_mode;
7013 s.move_with(|map, selection| {
7014 if !selection.is_empty() && !line_mode {
7015 selection.goal = SelectionGoal::None;
7016 }
7017 let (cursor, goal) = movement::up_by_rows(
7018 map,
7019 selection.start,
7020 action.lines,
7021 selection.goal,
7022 false,
7023 text_layout_details,
7024 );
7025 selection.collapse_to(cursor, goal);
7026 });
7027 })
7028 }
7029
7030 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7031 if self.take_rename(true, cx).is_some() {
7032 return;
7033 }
7034
7035 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7036 cx.propagate();
7037 return;
7038 }
7039
7040 let text_layout_details = &self.text_layout_details(cx);
7041
7042 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7043 let line_mode = s.line_mode;
7044 s.move_with(|map, selection| {
7045 if !selection.is_empty() && !line_mode {
7046 selection.goal = SelectionGoal::None;
7047 }
7048 let (cursor, goal) = movement::down_by_rows(
7049 map,
7050 selection.start,
7051 action.lines,
7052 selection.goal,
7053 false,
7054 text_layout_details,
7055 );
7056 selection.collapse_to(cursor, goal);
7057 });
7058 })
7059 }
7060
7061 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7062 let text_layout_details = &self.text_layout_details(cx);
7063 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7064 s.move_heads_with(|map, head, goal| {
7065 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7066 })
7067 })
7068 }
7069
7070 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7071 let text_layout_details = &self.text_layout_details(cx);
7072 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7073 s.move_heads_with(|map, head, goal| {
7074 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7075 })
7076 })
7077 }
7078
7079 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7080 let Some(row_count) = self.visible_row_count() else {
7081 return;
7082 };
7083
7084 let text_layout_details = &self.text_layout_details(cx);
7085
7086 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7087 s.move_heads_with(|map, head, goal| {
7088 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7089 })
7090 })
7091 }
7092
7093 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7094 if self.take_rename(true, cx).is_some() {
7095 return;
7096 }
7097
7098 if self
7099 .context_menu
7100 .borrow_mut()
7101 .as_mut()
7102 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7103 .unwrap_or(false)
7104 {
7105 return;
7106 }
7107
7108 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7109 cx.propagate();
7110 return;
7111 }
7112
7113 let Some(row_count) = self.visible_row_count() else {
7114 return;
7115 };
7116
7117 let autoscroll = if action.center_cursor {
7118 Autoscroll::center()
7119 } else {
7120 Autoscroll::fit()
7121 };
7122
7123 let text_layout_details = &self.text_layout_details(cx);
7124
7125 self.change_selections(Some(autoscroll), cx, |s| {
7126 let line_mode = s.line_mode;
7127 s.move_with(|map, selection| {
7128 if !selection.is_empty() && !line_mode {
7129 selection.goal = SelectionGoal::None;
7130 }
7131 let (cursor, goal) = movement::up_by_rows(
7132 map,
7133 selection.end,
7134 row_count,
7135 selection.goal,
7136 false,
7137 text_layout_details,
7138 );
7139 selection.collapse_to(cursor, goal);
7140 });
7141 });
7142 }
7143
7144 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7145 let text_layout_details = &self.text_layout_details(cx);
7146 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7147 s.move_heads_with(|map, head, goal| {
7148 movement::up(map, head, goal, false, text_layout_details)
7149 })
7150 })
7151 }
7152
7153 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7154 self.take_rename(true, cx);
7155
7156 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7157 cx.propagate();
7158 return;
7159 }
7160
7161 let text_layout_details = &self.text_layout_details(cx);
7162 let selection_count = self.selections.count();
7163 let first_selection = self.selections.first_anchor();
7164
7165 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7166 let line_mode = s.line_mode;
7167 s.move_with(|map, selection| {
7168 if !selection.is_empty() && !line_mode {
7169 selection.goal = SelectionGoal::None;
7170 }
7171 let (cursor, goal) = movement::down(
7172 map,
7173 selection.end,
7174 selection.goal,
7175 false,
7176 text_layout_details,
7177 );
7178 selection.collapse_to(cursor, goal);
7179 });
7180 });
7181
7182 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7183 {
7184 cx.propagate();
7185 }
7186 }
7187
7188 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7189 let Some(row_count) = self.visible_row_count() else {
7190 return;
7191 };
7192
7193 let text_layout_details = &self.text_layout_details(cx);
7194
7195 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7196 s.move_heads_with(|map, head, goal| {
7197 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7198 })
7199 })
7200 }
7201
7202 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7203 if self.take_rename(true, cx).is_some() {
7204 return;
7205 }
7206
7207 if self
7208 .context_menu
7209 .borrow_mut()
7210 .as_mut()
7211 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7212 .unwrap_or(false)
7213 {
7214 return;
7215 }
7216
7217 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7218 cx.propagate();
7219 return;
7220 }
7221
7222 let Some(row_count) = self.visible_row_count() else {
7223 return;
7224 };
7225
7226 let autoscroll = if action.center_cursor {
7227 Autoscroll::center()
7228 } else {
7229 Autoscroll::fit()
7230 };
7231
7232 let text_layout_details = &self.text_layout_details(cx);
7233 self.change_selections(Some(autoscroll), cx, |s| {
7234 let line_mode = s.line_mode;
7235 s.move_with(|map, selection| {
7236 if !selection.is_empty() && !line_mode {
7237 selection.goal = SelectionGoal::None;
7238 }
7239 let (cursor, goal) = movement::down_by_rows(
7240 map,
7241 selection.end,
7242 row_count,
7243 selection.goal,
7244 false,
7245 text_layout_details,
7246 );
7247 selection.collapse_to(cursor, goal);
7248 });
7249 });
7250 }
7251
7252 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7253 let text_layout_details = &self.text_layout_details(cx);
7254 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7255 s.move_heads_with(|map, head, goal| {
7256 movement::down(map, head, goal, false, text_layout_details)
7257 })
7258 });
7259 }
7260
7261 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7262 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7263 context_menu.select_first(self.completion_provider.as_deref(), cx);
7264 }
7265 }
7266
7267 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7268 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7269 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7270 }
7271 }
7272
7273 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7274 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7275 context_menu.select_next(self.completion_provider.as_deref(), cx);
7276 }
7277 }
7278
7279 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7280 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7281 context_menu.select_last(self.completion_provider.as_deref(), cx);
7282 }
7283 }
7284
7285 pub fn move_to_previous_word_start(
7286 &mut self,
7287 _: &MoveToPreviousWordStart,
7288 cx: &mut ViewContext<Self>,
7289 ) {
7290 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7291 s.move_cursors_with(|map, head, _| {
7292 (
7293 movement::previous_word_start(map, head),
7294 SelectionGoal::None,
7295 )
7296 });
7297 })
7298 }
7299
7300 pub fn move_to_previous_subword_start(
7301 &mut self,
7302 _: &MoveToPreviousSubwordStart,
7303 cx: &mut ViewContext<Self>,
7304 ) {
7305 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7306 s.move_cursors_with(|map, head, _| {
7307 (
7308 movement::previous_subword_start(map, head),
7309 SelectionGoal::None,
7310 )
7311 });
7312 })
7313 }
7314
7315 pub fn select_to_previous_word_start(
7316 &mut self,
7317 _: &SelectToPreviousWordStart,
7318 cx: &mut ViewContext<Self>,
7319 ) {
7320 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7321 s.move_heads_with(|map, head, _| {
7322 (
7323 movement::previous_word_start(map, head),
7324 SelectionGoal::None,
7325 )
7326 });
7327 })
7328 }
7329
7330 pub fn select_to_previous_subword_start(
7331 &mut self,
7332 _: &SelectToPreviousSubwordStart,
7333 cx: &mut ViewContext<Self>,
7334 ) {
7335 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7336 s.move_heads_with(|map, head, _| {
7337 (
7338 movement::previous_subword_start(map, head),
7339 SelectionGoal::None,
7340 )
7341 });
7342 })
7343 }
7344
7345 pub fn delete_to_previous_word_start(
7346 &mut self,
7347 action: &DeleteToPreviousWordStart,
7348 cx: &mut ViewContext<Self>,
7349 ) {
7350 self.transact(cx, |this, cx| {
7351 this.select_autoclose_pair(cx);
7352 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7353 let line_mode = s.line_mode;
7354 s.move_with(|map, selection| {
7355 if selection.is_empty() && !line_mode {
7356 let cursor = if action.ignore_newlines {
7357 movement::previous_word_start(map, selection.head())
7358 } else {
7359 movement::previous_word_start_or_newline(map, selection.head())
7360 };
7361 selection.set_head(cursor, SelectionGoal::None);
7362 }
7363 });
7364 });
7365 this.insert("", cx);
7366 });
7367 }
7368
7369 pub fn delete_to_previous_subword_start(
7370 &mut self,
7371 _: &DeleteToPreviousSubwordStart,
7372 cx: &mut ViewContext<Self>,
7373 ) {
7374 self.transact(cx, |this, cx| {
7375 this.select_autoclose_pair(cx);
7376 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7377 let line_mode = s.line_mode;
7378 s.move_with(|map, selection| {
7379 if selection.is_empty() && !line_mode {
7380 let cursor = movement::previous_subword_start(map, selection.head());
7381 selection.set_head(cursor, SelectionGoal::None);
7382 }
7383 });
7384 });
7385 this.insert("", cx);
7386 });
7387 }
7388
7389 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7390 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7391 s.move_cursors_with(|map, head, _| {
7392 (movement::next_word_end(map, head), SelectionGoal::None)
7393 });
7394 })
7395 }
7396
7397 pub fn move_to_next_subword_end(
7398 &mut self,
7399 _: &MoveToNextSubwordEnd,
7400 cx: &mut ViewContext<Self>,
7401 ) {
7402 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7403 s.move_cursors_with(|map, head, _| {
7404 (movement::next_subword_end(map, head), SelectionGoal::None)
7405 });
7406 })
7407 }
7408
7409 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7410 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7411 s.move_heads_with(|map, head, _| {
7412 (movement::next_word_end(map, head), SelectionGoal::None)
7413 });
7414 })
7415 }
7416
7417 pub fn select_to_next_subword_end(
7418 &mut self,
7419 _: &SelectToNextSubwordEnd,
7420 cx: &mut ViewContext<Self>,
7421 ) {
7422 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7423 s.move_heads_with(|map, head, _| {
7424 (movement::next_subword_end(map, head), SelectionGoal::None)
7425 });
7426 })
7427 }
7428
7429 pub fn delete_to_next_word_end(
7430 &mut self,
7431 action: &DeleteToNextWordEnd,
7432 cx: &mut ViewContext<Self>,
7433 ) {
7434 self.transact(cx, |this, cx| {
7435 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7436 let line_mode = s.line_mode;
7437 s.move_with(|map, selection| {
7438 if selection.is_empty() && !line_mode {
7439 let cursor = if action.ignore_newlines {
7440 movement::next_word_end(map, selection.head())
7441 } else {
7442 movement::next_word_end_or_newline(map, selection.head())
7443 };
7444 selection.set_head(cursor, SelectionGoal::None);
7445 }
7446 });
7447 });
7448 this.insert("", cx);
7449 });
7450 }
7451
7452 pub fn delete_to_next_subword_end(
7453 &mut self,
7454 _: &DeleteToNextSubwordEnd,
7455 cx: &mut ViewContext<Self>,
7456 ) {
7457 self.transact(cx, |this, cx| {
7458 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7459 s.move_with(|map, selection| {
7460 if selection.is_empty() {
7461 let cursor = movement::next_subword_end(map, selection.head());
7462 selection.set_head(cursor, SelectionGoal::None);
7463 }
7464 });
7465 });
7466 this.insert("", cx);
7467 });
7468 }
7469
7470 pub fn move_to_beginning_of_line(
7471 &mut self,
7472 action: &MoveToBeginningOfLine,
7473 cx: &mut ViewContext<Self>,
7474 ) {
7475 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7476 s.move_cursors_with(|map, head, _| {
7477 (
7478 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7479 SelectionGoal::None,
7480 )
7481 });
7482 })
7483 }
7484
7485 pub fn select_to_beginning_of_line(
7486 &mut self,
7487 action: &SelectToBeginningOfLine,
7488 cx: &mut ViewContext<Self>,
7489 ) {
7490 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7491 s.move_heads_with(|map, head, _| {
7492 (
7493 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7494 SelectionGoal::None,
7495 )
7496 });
7497 });
7498 }
7499
7500 pub fn delete_to_beginning_of_line(
7501 &mut self,
7502 _: &DeleteToBeginningOfLine,
7503 cx: &mut ViewContext<Self>,
7504 ) {
7505 self.transact(cx, |this, cx| {
7506 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7507 s.move_with(|_, selection| {
7508 selection.reversed = true;
7509 });
7510 });
7511
7512 this.select_to_beginning_of_line(
7513 &SelectToBeginningOfLine {
7514 stop_at_soft_wraps: false,
7515 },
7516 cx,
7517 );
7518 this.backspace(&Backspace, cx);
7519 });
7520 }
7521
7522 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7523 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7524 s.move_cursors_with(|map, head, _| {
7525 (
7526 movement::line_end(map, head, action.stop_at_soft_wraps),
7527 SelectionGoal::None,
7528 )
7529 });
7530 })
7531 }
7532
7533 pub fn select_to_end_of_line(
7534 &mut self,
7535 action: &SelectToEndOfLine,
7536 cx: &mut ViewContext<Self>,
7537 ) {
7538 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7539 s.move_heads_with(|map, head, _| {
7540 (
7541 movement::line_end(map, head, action.stop_at_soft_wraps),
7542 SelectionGoal::None,
7543 )
7544 });
7545 })
7546 }
7547
7548 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7549 self.transact(cx, |this, cx| {
7550 this.select_to_end_of_line(
7551 &SelectToEndOfLine {
7552 stop_at_soft_wraps: false,
7553 },
7554 cx,
7555 );
7556 this.delete(&Delete, cx);
7557 });
7558 }
7559
7560 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7561 self.transact(cx, |this, cx| {
7562 this.select_to_end_of_line(
7563 &SelectToEndOfLine {
7564 stop_at_soft_wraps: false,
7565 },
7566 cx,
7567 );
7568 this.cut(&Cut, cx);
7569 });
7570 }
7571
7572 pub fn move_to_start_of_paragraph(
7573 &mut self,
7574 _: &MoveToStartOfParagraph,
7575 cx: &mut ViewContext<Self>,
7576 ) {
7577 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7578 cx.propagate();
7579 return;
7580 }
7581
7582 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7583 s.move_with(|map, selection| {
7584 selection.collapse_to(
7585 movement::start_of_paragraph(map, selection.head(), 1),
7586 SelectionGoal::None,
7587 )
7588 });
7589 })
7590 }
7591
7592 pub fn move_to_end_of_paragraph(
7593 &mut self,
7594 _: &MoveToEndOfParagraph,
7595 cx: &mut ViewContext<Self>,
7596 ) {
7597 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7598 cx.propagate();
7599 return;
7600 }
7601
7602 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7603 s.move_with(|map, selection| {
7604 selection.collapse_to(
7605 movement::end_of_paragraph(map, selection.head(), 1),
7606 SelectionGoal::None,
7607 )
7608 });
7609 })
7610 }
7611
7612 pub fn select_to_start_of_paragraph(
7613 &mut self,
7614 _: &SelectToStartOfParagraph,
7615 cx: &mut ViewContext<Self>,
7616 ) {
7617 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7618 cx.propagate();
7619 return;
7620 }
7621
7622 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7623 s.move_heads_with(|map, head, _| {
7624 (
7625 movement::start_of_paragraph(map, head, 1),
7626 SelectionGoal::None,
7627 )
7628 });
7629 })
7630 }
7631
7632 pub fn select_to_end_of_paragraph(
7633 &mut self,
7634 _: &SelectToEndOfParagraph,
7635 cx: &mut ViewContext<Self>,
7636 ) {
7637 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7638 cx.propagate();
7639 return;
7640 }
7641
7642 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7643 s.move_heads_with(|map, head, _| {
7644 (
7645 movement::end_of_paragraph(map, head, 1),
7646 SelectionGoal::None,
7647 )
7648 });
7649 })
7650 }
7651
7652 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7653 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7654 cx.propagate();
7655 return;
7656 }
7657
7658 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7659 s.select_ranges(vec![0..0]);
7660 });
7661 }
7662
7663 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7664 let mut selection = self.selections.last::<Point>(cx);
7665 selection.set_head(Point::zero(), SelectionGoal::None);
7666
7667 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7668 s.select(vec![selection]);
7669 });
7670 }
7671
7672 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7673 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7674 cx.propagate();
7675 return;
7676 }
7677
7678 let cursor = self.buffer.read(cx).read(cx).len();
7679 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7680 s.select_ranges(vec![cursor..cursor])
7681 });
7682 }
7683
7684 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7685 self.nav_history = nav_history;
7686 }
7687
7688 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7689 self.nav_history.as_ref()
7690 }
7691
7692 fn push_to_nav_history(
7693 &mut self,
7694 cursor_anchor: Anchor,
7695 new_position: Option<Point>,
7696 cx: &mut ViewContext<Self>,
7697 ) {
7698 if let Some(nav_history) = self.nav_history.as_mut() {
7699 let buffer = self.buffer.read(cx).read(cx);
7700 let cursor_position = cursor_anchor.to_point(&buffer);
7701 let scroll_state = self.scroll_manager.anchor();
7702 let scroll_top_row = scroll_state.top_row(&buffer);
7703 drop(buffer);
7704
7705 if let Some(new_position) = new_position {
7706 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7707 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7708 return;
7709 }
7710 }
7711
7712 nav_history.push(
7713 Some(NavigationData {
7714 cursor_anchor,
7715 cursor_position,
7716 scroll_anchor: scroll_state,
7717 scroll_top_row,
7718 }),
7719 cx,
7720 );
7721 }
7722 }
7723
7724 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7725 let buffer = self.buffer.read(cx).snapshot(cx);
7726 let mut selection = self.selections.first::<usize>(cx);
7727 selection.set_head(buffer.len(), SelectionGoal::None);
7728 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7729 s.select(vec![selection]);
7730 });
7731 }
7732
7733 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7734 let end = self.buffer.read(cx).read(cx).len();
7735 self.change_selections(None, cx, |s| {
7736 s.select_ranges(vec![0..end]);
7737 });
7738 }
7739
7740 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7741 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7742 let mut selections = self.selections.all::<Point>(cx);
7743 let max_point = display_map.buffer_snapshot.max_point();
7744 for selection in &mut selections {
7745 let rows = selection.spanned_rows(true, &display_map);
7746 selection.start = Point::new(rows.start.0, 0);
7747 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7748 selection.reversed = false;
7749 }
7750 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7751 s.select(selections);
7752 });
7753 }
7754
7755 pub fn split_selection_into_lines(
7756 &mut self,
7757 _: &SplitSelectionIntoLines,
7758 cx: &mut ViewContext<Self>,
7759 ) {
7760 let mut to_unfold = Vec::new();
7761 let mut new_selection_ranges = Vec::new();
7762 {
7763 let selections = self.selections.all::<Point>(cx);
7764 let buffer = self.buffer.read(cx).read(cx);
7765 for selection in selections {
7766 for row in selection.start.row..selection.end.row {
7767 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7768 new_selection_ranges.push(cursor..cursor);
7769 }
7770 new_selection_ranges.push(selection.end..selection.end);
7771 to_unfold.push(selection.start..selection.end);
7772 }
7773 }
7774 self.unfold_ranges(&to_unfold, true, true, cx);
7775 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7776 s.select_ranges(new_selection_ranges);
7777 });
7778 }
7779
7780 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7781 self.add_selection(true, cx);
7782 }
7783
7784 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7785 self.add_selection(false, cx);
7786 }
7787
7788 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7789 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7790 let mut selections = self.selections.all::<Point>(cx);
7791 let text_layout_details = self.text_layout_details(cx);
7792 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7793 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7794 let range = oldest_selection.display_range(&display_map).sorted();
7795
7796 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7797 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7798 let positions = start_x.min(end_x)..start_x.max(end_x);
7799
7800 selections.clear();
7801 let mut stack = Vec::new();
7802 for row in range.start.row().0..=range.end.row().0 {
7803 if let Some(selection) = self.selections.build_columnar_selection(
7804 &display_map,
7805 DisplayRow(row),
7806 &positions,
7807 oldest_selection.reversed,
7808 &text_layout_details,
7809 ) {
7810 stack.push(selection.id);
7811 selections.push(selection);
7812 }
7813 }
7814
7815 if above {
7816 stack.reverse();
7817 }
7818
7819 AddSelectionsState { above, stack }
7820 });
7821
7822 let last_added_selection = *state.stack.last().unwrap();
7823 let mut new_selections = Vec::new();
7824 if above == state.above {
7825 let end_row = if above {
7826 DisplayRow(0)
7827 } else {
7828 display_map.max_point().row()
7829 };
7830
7831 'outer: for selection in selections {
7832 if selection.id == last_added_selection {
7833 let range = selection.display_range(&display_map).sorted();
7834 debug_assert_eq!(range.start.row(), range.end.row());
7835 let mut row = range.start.row();
7836 let positions =
7837 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7838 px(start)..px(end)
7839 } else {
7840 let start_x =
7841 display_map.x_for_display_point(range.start, &text_layout_details);
7842 let end_x =
7843 display_map.x_for_display_point(range.end, &text_layout_details);
7844 start_x.min(end_x)..start_x.max(end_x)
7845 };
7846
7847 while row != end_row {
7848 if above {
7849 row.0 -= 1;
7850 } else {
7851 row.0 += 1;
7852 }
7853
7854 if let Some(new_selection) = self.selections.build_columnar_selection(
7855 &display_map,
7856 row,
7857 &positions,
7858 selection.reversed,
7859 &text_layout_details,
7860 ) {
7861 state.stack.push(new_selection.id);
7862 if above {
7863 new_selections.push(new_selection);
7864 new_selections.push(selection);
7865 } else {
7866 new_selections.push(selection);
7867 new_selections.push(new_selection);
7868 }
7869
7870 continue 'outer;
7871 }
7872 }
7873 }
7874
7875 new_selections.push(selection);
7876 }
7877 } else {
7878 new_selections = selections;
7879 new_selections.retain(|s| s.id != last_added_selection);
7880 state.stack.pop();
7881 }
7882
7883 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7884 s.select(new_selections);
7885 });
7886 if state.stack.len() > 1 {
7887 self.add_selections_state = Some(state);
7888 }
7889 }
7890
7891 pub fn select_next_match_internal(
7892 &mut self,
7893 display_map: &DisplaySnapshot,
7894 replace_newest: bool,
7895 autoscroll: Option<Autoscroll>,
7896 cx: &mut ViewContext<Self>,
7897 ) -> Result<()> {
7898 fn select_next_match_ranges(
7899 this: &mut Editor,
7900 range: Range<usize>,
7901 replace_newest: bool,
7902 auto_scroll: Option<Autoscroll>,
7903 cx: &mut ViewContext<Editor>,
7904 ) {
7905 this.unfold_ranges(&[range.clone()], false, true, cx);
7906 this.change_selections(auto_scroll, cx, |s| {
7907 if replace_newest {
7908 s.delete(s.newest_anchor().id);
7909 }
7910 s.insert_range(range.clone());
7911 });
7912 }
7913
7914 let buffer = &display_map.buffer_snapshot;
7915 let mut selections = self.selections.all::<usize>(cx);
7916 if let Some(mut select_next_state) = self.select_next_state.take() {
7917 let query = &select_next_state.query;
7918 if !select_next_state.done {
7919 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7920 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7921 let mut next_selected_range = None;
7922
7923 let bytes_after_last_selection =
7924 buffer.bytes_in_range(last_selection.end..buffer.len());
7925 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7926 let query_matches = query
7927 .stream_find_iter(bytes_after_last_selection)
7928 .map(|result| (last_selection.end, result))
7929 .chain(
7930 query
7931 .stream_find_iter(bytes_before_first_selection)
7932 .map(|result| (0, result)),
7933 );
7934
7935 for (start_offset, query_match) in query_matches {
7936 let query_match = query_match.unwrap(); // can only fail due to I/O
7937 let offset_range =
7938 start_offset + query_match.start()..start_offset + query_match.end();
7939 let display_range = offset_range.start.to_display_point(display_map)
7940 ..offset_range.end.to_display_point(display_map);
7941
7942 if !select_next_state.wordwise
7943 || (!movement::is_inside_word(display_map, display_range.start)
7944 && !movement::is_inside_word(display_map, display_range.end))
7945 {
7946 // TODO: This is n^2, because we might check all the selections
7947 if !selections
7948 .iter()
7949 .any(|selection| selection.range().overlaps(&offset_range))
7950 {
7951 next_selected_range = Some(offset_range);
7952 break;
7953 }
7954 }
7955 }
7956
7957 if let Some(next_selected_range) = next_selected_range {
7958 select_next_match_ranges(
7959 self,
7960 next_selected_range,
7961 replace_newest,
7962 autoscroll,
7963 cx,
7964 );
7965 } else {
7966 select_next_state.done = true;
7967 }
7968 }
7969
7970 self.select_next_state = Some(select_next_state);
7971 } else {
7972 let mut only_carets = true;
7973 let mut same_text_selected = true;
7974 let mut selected_text = None;
7975
7976 let mut selections_iter = selections.iter().peekable();
7977 while let Some(selection) = selections_iter.next() {
7978 if selection.start != selection.end {
7979 only_carets = false;
7980 }
7981
7982 if same_text_selected {
7983 if selected_text.is_none() {
7984 selected_text =
7985 Some(buffer.text_for_range(selection.range()).collect::<String>());
7986 }
7987
7988 if let Some(next_selection) = selections_iter.peek() {
7989 if next_selection.range().len() == selection.range().len() {
7990 let next_selected_text = buffer
7991 .text_for_range(next_selection.range())
7992 .collect::<String>();
7993 if Some(next_selected_text) != selected_text {
7994 same_text_selected = false;
7995 selected_text = None;
7996 }
7997 } else {
7998 same_text_selected = false;
7999 selected_text = None;
8000 }
8001 }
8002 }
8003 }
8004
8005 if only_carets {
8006 for selection in &mut selections {
8007 let word_range = movement::surrounding_word(
8008 display_map,
8009 selection.start.to_display_point(display_map),
8010 );
8011 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8012 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8013 selection.goal = SelectionGoal::None;
8014 selection.reversed = false;
8015 select_next_match_ranges(
8016 self,
8017 selection.start..selection.end,
8018 replace_newest,
8019 autoscroll,
8020 cx,
8021 );
8022 }
8023
8024 if selections.len() == 1 {
8025 let selection = selections
8026 .last()
8027 .expect("ensured that there's only one selection");
8028 let query = buffer
8029 .text_for_range(selection.start..selection.end)
8030 .collect::<String>();
8031 let is_empty = query.is_empty();
8032 let select_state = SelectNextState {
8033 query: AhoCorasick::new(&[query])?,
8034 wordwise: true,
8035 done: is_empty,
8036 };
8037 self.select_next_state = Some(select_state);
8038 } else {
8039 self.select_next_state = None;
8040 }
8041 } else if let Some(selected_text) = selected_text {
8042 self.select_next_state = Some(SelectNextState {
8043 query: AhoCorasick::new(&[selected_text])?,
8044 wordwise: false,
8045 done: false,
8046 });
8047 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8048 }
8049 }
8050 Ok(())
8051 }
8052
8053 pub fn select_all_matches(
8054 &mut self,
8055 _action: &SelectAllMatches,
8056 cx: &mut ViewContext<Self>,
8057 ) -> Result<()> {
8058 self.push_to_selection_history();
8059 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8060
8061 self.select_next_match_internal(&display_map, false, None, cx)?;
8062 let Some(select_next_state) = self.select_next_state.as_mut() else {
8063 return Ok(());
8064 };
8065 if select_next_state.done {
8066 return Ok(());
8067 }
8068
8069 let mut new_selections = self.selections.all::<usize>(cx);
8070
8071 let buffer = &display_map.buffer_snapshot;
8072 let query_matches = select_next_state
8073 .query
8074 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8075
8076 for query_match in query_matches {
8077 let query_match = query_match.unwrap(); // can only fail due to I/O
8078 let offset_range = query_match.start()..query_match.end();
8079 let display_range = offset_range.start.to_display_point(&display_map)
8080 ..offset_range.end.to_display_point(&display_map);
8081
8082 if !select_next_state.wordwise
8083 || (!movement::is_inside_word(&display_map, display_range.start)
8084 && !movement::is_inside_word(&display_map, display_range.end))
8085 {
8086 self.selections.change_with(cx, |selections| {
8087 new_selections.push(Selection {
8088 id: selections.new_selection_id(),
8089 start: offset_range.start,
8090 end: offset_range.end,
8091 reversed: false,
8092 goal: SelectionGoal::None,
8093 });
8094 });
8095 }
8096 }
8097
8098 new_selections.sort_by_key(|selection| selection.start);
8099 let mut ix = 0;
8100 while ix + 1 < new_selections.len() {
8101 let current_selection = &new_selections[ix];
8102 let next_selection = &new_selections[ix + 1];
8103 if current_selection.range().overlaps(&next_selection.range()) {
8104 if current_selection.id < next_selection.id {
8105 new_selections.remove(ix + 1);
8106 } else {
8107 new_selections.remove(ix);
8108 }
8109 } else {
8110 ix += 1;
8111 }
8112 }
8113
8114 select_next_state.done = true;
8115 self.unfold_ranges(
8116 &new_selections
8117 .iter()
8118 .map(|selection| selection.range())
8119 .collect::<Vec<_>>(),
8120 false,
8121 false,
8122 cx,
8123 );
8124 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8125 selections.select(new_selections)
8126 });
8127
8128 Ok(())
8129 }
8130
8131 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8132 self.push_to_selection_history();
8133 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8134 self.select_next_match_internal(
8135 &display_map,
8136 action.replace_newest,
8137 Some(Autoscroll::newest()),
8138 cx,
8139 )?;
8140 Ok(())
8141 }
8142
8143 pub fn select_previous(
8144 &mut self,
8145 action: &SelectPrevious,
8146 cx: &mut ViewContext<Self>,
8147 ) -> Result<()> {
8148 self.push_to_selection_history();
8149 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8150 let buffer = &display_map.buffer_snapshot;
8151 let mut selections = self.selections.all::<usize>(cx);
8152 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8153 let query = &select_prev_state.query;
8154 if !select_prev_state.done {
8155 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8156 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8157 let mut next_selected_range = None;
8158 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8159 let bytes_before_last_selection =
8160 buffer.reversed_bytes_in_range(0..last_selection.start);
8161 let bytes_after_first_selection =
8162 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8163 let query_matches = query
8164 .stream_find_iter(bytes_before_last_selection)
8165 .map(|result| (last_selection.start, result))
8166 .chain(
8167 query
8168 .stream_find_iter(bytes_after_first_selection)
8169 .map(|result| (buffer.len(), result)),
8170 );
8171 for (end_offset, query_match) in query_matches {
8172 let query_match = query_match.unwrap(); // can only fail due to I/O
8173 let offset_range =
8174 end_offset - query_match.end()..end_offset - query_match.start();
8175 let display_range = offset_range.start.to_display_point(&display_map)
8176 ..offset_range.end.to_display_point(&display_map);
8177
8178 if !select_prev_state.wordwise
8179 || (!movement::is_inside_word(&display_map, display_range.start)
8180 && !movement::is_inside_word(&display_map, display_range.end))
8181 {
8182 next_selected_range = Some(offset_range);
8183 break;
8184 }
8185 }
8186
8187 if let Some(next_selected_range) = next_selected_range {
8188 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8189 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8190 if action.replace_newest {
8191 s.delete(s.newest_anchor().id);
8192 }
8193 s.insert_range(next_selected_range);
8194 });
8195 } else {
8196 select_prev_state.done = true;
8197 }
8198 }
8199
8200 self.select_prev_state = Some(select_prev_state);
8201 } else {
8202 let mut only_carets = true;
8203 let mut same_text_selected = true;
8204 let mut selected_text = None;
8205
8206 let mut selections_iter = selections.iter().peekable();
8207 while let Some(selection) = selections_iter.next() {
8208 if selection.start != selection.end {
8209 only_carets = false;
8210 }
8211
8212 if same_text_selected {
8213 if selected_text.is_none() {
8214 selected_text =
8215 Some(buffer.text_for_range(selection.range()).collect::<String>());
8216 }
8217
8218 if let Some(next_selection) = selections_iter.peek() {
8219 if next_selection.range().len() == selection.range().len() {
8220 let next_selected_text = buffer
8221 .text_for_range(next_selection.range())
8222 .collect::<String>();
8223 if Some(next_selected_text) != selected_text {
8224 same_text_selected = false;
8225 selected_text = None;
8226 }
8227 } else {
8228 same_text_selected = false;
8229 selected_text = None;
8230 }
8231 }
8232 }
8233 }
8234
8235 if only_carets {
8236 for selection in &mut selections {
8237 let word_range = movement::surrounding_word(
8238 &display_map,
8239 selection.start.to_display_point(&display_map),
8240 );
8241 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8242 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8243 selection.goal = SelectionGoal::None;
8244 selection.reversed = false;
8245 }
8246 if selections.len() == 1 {
8247 let selection = selections
8248 .last()
8249 .expect("ensured that there's only one selection");
8250 let query = buffer
8251 .text_for_range(selection.start..selection.end)
8252 .collect::<String>();
8253 let is_empty = query.is_empty();
8254 let select_state = SelectNextState {
8255 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8256 wordwise: true,
8257 done: is_empty,
8258 };
8259 self.select_prev_state = Some(select_state);
8260 } else {
8261 self.select_prev_state = None;
8262 }
8263
8264 self.unfold_ranges(
8265 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8266 false,
8267 true,
8268 cx,
8269 );
8270 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8271 s.select(selections);
8272 });
8273 } else if let Some(selected_text) = selected_text {
8274 self.select_prev_state = Some(SelectNextState {
8275 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8276 wordwise: false,
8277 done: false,
8278 });
8279 self.select_previous(action, cx)?;
8280 }
8281 }
8282 Ok(())
8283 }
8284
8285 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8286 if self.read_only(cx) {
8287 return;
8288 }
8289 let text_layout_details = &self.text_layout_details(cx);
8290 self.transact(cx, |this, cx| {
8291 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8292 let mut edits = Vec::new();
8293 let mut selection_edit_ranges = Vec::new();
8294 let mut last_toggled_row = None;
8295 let snapshot = this.buffer.read(cx).read(cx);
8296 let empty_str: Arc<str> = Arc::default();
8297 let mut suffixes_inserted = Vec::new();
8298 let ignore_indent = action.ignore_indent;
8299
8300 fn comment_prefix_range(
8301 snapshot: &MultiBufferSnapshot,
8302 row: MultiBufferRow,
8303 comment_prefix: &str,
8304 comment_prefix_whitespace: &str,
8305 ignore_indent: bool,
8306 ) -> Range<Point> {
8307 let indent_size = if ignore_indent {
8308 0
8309 } else {
8310 snapshot.indent_size_for_line(row).len
8311 };
8312
8313 let start = Point::new(row.0, indent_size);
8314
8315 let mut line_bytes = snapshot
8316 .bytes_in_range(start..snapshot.max_point())
8317 .flatten()
8318 .copied();
8319
8320 // If this line currently begins with the line comment prefix, then record
8321 // the range containing the prefix.
8322 if line_bytes
8323 .by_ref()
8324 .take(comment_prefix.len())
8325 .eq(comment_prefix.bytes())
8326 {
8327 // Include any whitespace that matches the comment prefix.
8328 let matching_whitespace_len = line_bytes
8329 .zip(comment_prefix_whitespace.bytes())
8330 .take_while(|(a, b)| a == b)
8331 .count() as u32;
8332 let end = Point::new(
8333 start.row,
8334 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8335 );
8336 start..end
8337 } else {
8338 start..start
8339 }
8340 }
8341
8342 fn comment_suffix_range(
8343 snapshot: &MultiBufferSnapshot,
8344 row: MultiBufferRow,
8345 comment_suffix: &str,
8346 comment_suffix_has_leading_space: bool,
8347 ) -> Range<Point> {
8348 let end = Point::new(row.0, snapshot.line_len(row));
8349 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8350
8351 let mut line_end_bytes = snapshot
8352 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8353 .flatten()
8354 .copied();
8355
8356 let leading_space_len = if suffix_start_column > 0
8357 && line_end_bytes.next() == Some(b' ')
8358 && comment_suffix_has_leading_space
8359 {
8360 1
8361 } else {
8362 0
8363 };
8364
8365 // If this line currently begins with the line comment prefix, then record
8366 // the range containing the prefix.
8367 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8368 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8369 start..end
8370 } else {
8371 end..end
8372 }
8373 }
8374
8375 // TODO: Handle selections that cross excerpts
8376 for selection in &mut selections {
8377 let start_column = snapshot
8378 .indent_size_for_line(MultiBufferRow(selection.start.row))
8379 .len;
8380 let language = if let Some(language) =
8381 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8382 {
8383 language
8384 } else {
8385 continue;
8386 };
8387
8388 selection_edit_ranges.clear();
8389
8390 // If multiple selections contain a given row, avoid processing that
8391 // row more than once.
8392 let mut start_row = MultiBufferRow(selection.start.row);
8393 if last_toggled_row == Some(start_row) {
8394 start_row = start_row.next_row();
8395 }
8396 let end_row =
8397 if selection.end.row > selection.start.row && selection.end.column == 0 {
8398 MultiBufferRow(selection.end.row - 1)
8399 } else {
8400 MultiBufferRow(selection.end.row)
8401 };
8402 last_toggled_row = Some(end_row);
8403
8404 if start_row > end_row {
8405 continue;
8406 }
8407
8408 // If the language has line comments, toggle those.
8409 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8410
8411 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8412 if ignore_indent {
8413 full_comment_prefixes = full_comment_prefixes
8414 .into_iter()
8415 .map(|s| Arc::from(s.trim_end()))
8416 .collect();
8417 }
8418
8419 if !full_comment_prefixes.is_empty() {
8420 let first_prefix = full_comment_prefixes
8421 .first()
8422 .expect("prefixes is non-empty");
8423 let prefix_trimmed_lengths = full_comment_prefixes
8424 .iter()
8425 .map(|p| p.trim_end_matches(' ').len())
8426 .collect::<SmallVec<[usize; 4]>>();
8427
8428 let mut all_selection_lines_are_comments = true;
8429
8430 for row in start_row.0..=end_row.0 {
8431 let row = MultiBufferRow(row);
8432 if start_row < end_row && snapshot.is_line_blank(row) {
8433 continue;
8434 }
8435
8436 let prefix_range = full_comment_prefixes
8437 .iter()
8438 .zip(prefix_trimmed_lengths.iter().copied())
8439 .map(|(prefix, trimmed_prefix_len)| {
8440 comment_prefix_range(
8441 snapshot.deref(),
8442 row,
8443 &prefix[..trimmed_prefix_len],
8444 &prefix[trimmed_prefix_len..],
8445 ignore_indent,
8446 )
8447 })
8448 .max_by_key(|range| range.end.column - range.start.column)
8449 .expect("prefixes is non-empty");
8450
8451 if prefix_range.is_empty() {
8452 all_selection_lines_are_comments = false;
8453 }
8454
8455 selection_edit_ranges.push(prefix_range);
8456 }
8457
8458 if all_selection_lines_are_comments {
8459 edits.extend(
8460 selection_edit_ranges
8461 .iter()
8462 .cloned()
8463 .map(|range| (range, empty_str.clone())),
8464 );
8465 } else {
8466 let min_column = selection_edit_ranges
8467 .iter()
8468 .map(|range| range.start.column)
8469 .min()
8470 .unwrap_or(0);
8471 edits.extend(selection_edit_ranges.iter().map(|range| {
8472 let position = Point::new(range.start.row, min_column);
8473 (position..position, first_prefix.clone())
8474 }));
8475 }
8476 } else if let Some((full_comment_prefix, comment_suffix)) =
8477 language.block_comment_delimiters()
8478 {
8479 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8480 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8481 let prefix_range = comment_prefix_range(
8482 snapshot.deref(),
8483 start_row,
8484 comment_prefix,
8485 comment_prefix_whitespace,
8486 ignore_indent,
8487 );
8488 let suffix_range = comment_suffix_range(
8489 snapshot.deref(),
8490 end_row,
8491 comment_suffix.trim_start_matches(' '),
8492 comment_suffix.starts_with(' '),
8493 );
8494
8495 if prefix_range.is_empty() || suffix_range.is_empty() {
8496 edits.push((
8497 prefix_range.start..prefix_range.start,
8498 full_comment_prefix.clone(),
8499 ));
8500 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8501 suffixes_inserted.push((end_row, comment_suffix.len()));
8502 } else {
8503 edits.push((prefix_range, empty_str.clone()));
8504 edits.push((suffix_range, empty_str.clone()));
8505 }
8506 } else {
8507 continue;
8508 }
8509 }
8510
8511 drop(snapshot);
8512 this.buffer.update(cx, |buffer, cx| {
8513 buffer.edit(edits, None, cx);
8514 });
8515
8516 // Adjust selections so that they end before any comment suffixes that
8517 // were inserted.
8518 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8519 let mut selections = this.selections.all::<Point>(cx);
8520 let snapshot = this.buffer.read(cx).read(cx);
8521 for selection in &mut selections {
8522 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8523 match row.cmp(&MultiBufferRow(selection.end.row)) {
8524 Ordering::Less => {
8525 suffixes_inserted.next();
8526 continue;
8527 }
8528 Ordering::Greater => break,
8529 Ordering::Equal => {
8530 if selection.end.column == snapshot.line_len(row) {
8531 if selection.is_empty() {
8532 selection.start.column -= suffix_len as u32;
8533 }
8534 selection.end.column -= suffix_len as u32;
8535 }
8536 break;
8537 }
8538 }
8539 }
8540 }
8541
8542 drop(snapshot);
8543 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8544
8545 let selections = this.selections.all::<Point>(cx);
8546 let selections_on_single_row = selections.windows(2).all(|selections| {
8547 selections[0].start.row == selections[1].start.row
8548 && selections[0].end.row == selections[1].end.row
8549 && selections[0].start.row == selections[0].end.row
8550 });
8551 let selections_selecting = selections
8552 .iter()
8553 .any(|selection| selection.start != selection.end);
8554 let advance_downwards = action.advance_downwards
8555 && selections_on_single_row
8556 && !selections_selecting
8557 && !matches!(this.mode, EditorMode::SingleLine { .. });
8558
8559 if advance_downwards {
8560 let snapshot = this.buffer.read(cx).snapshot(cx);
8561
8562 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8563 s.move_cursors_with(|display_snapshot, display_point, _| {
8564 let mut point = display_point.to_point(display_snapshot);
8565 point.row += 1;
8566 point = snapshot.clip_point(point, Bias::Left);
8567 let display_point = point.to_display_point(display_snapshot);
8568 let goal = SelectionGoal::HorizontalPosition(
8569 display_snapshot
8570 .x_for_display_point(display_point, text_layout_details)
8571 .into(),
8572 );
8573 (display_point, goal)
8574 })
8575 });
8576 }
8577 });
8578 }
8579
8580 pub fn select_enclosing_symbol(
8581 &mut self,
8582 _: &SelectEnclosingSymbol,
8583 cx: &mut ViewContext<Self>,
8584 ) {
8585 let buffer = self.buffer.read(cx).snapshot(cx);
8586 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8587
8588 fn update_selection(
8589 selection: &Selection<usize>,
8590 buffer_snap: &MultiBufferSnapshot,
8591 ) -> Option<Selection<usize>> {
8592 let cursor = selection.head();
8593 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8594 for symbol in symbols.iter().rev() {
8595 let start = symbol.range.start.to_offset(buffer_snap);
8596 let end = symbol.range.end.to_offset(buffer_snap);
8597 let new_range = start..end;
8598 if start < selection.start || end > selection.end {
8599 return Some(Selection {
8600 id: selection.id,
8601 start: new_range.start,
8602 end: new_range.end,
8603 goal: SelectionGoal::None,
8604 reversed: selection.reversed,
8605 });
8606 }
8607 }
8608 None
8609 }
8610
8611 let mut selected_larger_symbol = false;
8612 let new_selections = old_selections
8613 .iter()
8614 .map(|selection| match update_selection(selection, &buffer) {
8615 Some(new_selection) => {
8616 if new_selection.range() != selection.range() {
8617 selected_larger_symbol = true;
8618 }
8619 new_selection
8620 }
8621 None => selection.clone(),
8622 })
8623 .collect::<Vec<_>>();
8624
8625 if selected_larger_symbol {
8626 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8627 s.select(new_selections);
8628 });
8629 }
8630 }
8631
8632 pub fn select_larger_syntax_node(
8633 &mut self,
8634 _: &SelectLargerSyntaxNode,
8635 cx: &mut ViewContext<Self>,
8636 ) {
8637 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8638 let buffer = self.buffer.read(cx).snapshot(cx);
8639 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8640
8641 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8642 let mut selected_larger_node = false;
8643 let new_selections = old_selections
8644 .iter()
8645 .map(|selection| {
8646 let old_range = selection.start..selection.end;
8647 let mut new_range = old_range.clone();
8648 while let Some(containing_range) =
8649 buffer.range_for_syntax_ancestor(new_range.clone())
8650 {
8651 new_range = containing_range;
8652 if !display_map.intersects_fold(new_range.start)
8653 && !display_map.intersects_fold(new_range.end)
8654 {
8655 break;
8656 }
8657 }
8658
8659 selected_larger_node |= new_range != old_range;
8660 Selection {
8661 id: selection.id,
8662 start: new_range.start,
8663 end: new_range.end,
8664 goal: SelectionGoal::None,
8665 reversed: selection.reversed,
8666 }
8667 })
8668 .collect::<Vec<_>>();
8669
8670 if selected_larger_node {
8671 stack.push(old_selections);
8672 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8673 s.select(new_selections);
8674 });
8675 }
8676 self.select_larger_syntax_node_stack = stack;
8677 }
8678
8679 pub fn select_smaller_syntax_node(
8680 &mut self,
8681 _: &SelectSmallerSyntaxNode,
8682 cx: &mut ViewContext<Self>,
8683 ) {
8684 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8685 if let Some(selections) = stack.pop() {
8686 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8687 s.select(selections.to_vec());
8688 });
8689 }
8690 self.select_larger_syntax_node_stack = stack;
8691 }
8692
8693 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8694 if !EditorSettings::get_global(cx).gutter.runnables {
8695 self.clear_tasks();
8696 return Task::ready(());
8697 }
8698 let project = self.project.as_ref().map(Model::downgrade);
8699 cx.spawn(|this, mut cx| async move {
8700 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
8701 let Some(project) = project.and_then(|p| p.upgrade()) else {
8702 return;
8703 };
8704 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8705 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8706 }) else {
8707 return;
8708 };
8709
8710 let hide_runnables = project
8711 .update(&mut cx, |project, cx| {
8712 // Do not display any test indicators in non-dev server remote projects.
8713 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8714 })
8715 .unwrap_or(true);
8716 if hide_runnables {
8717 return;
8718 }
8719 let new_rows =
8720 cx.background_executor()
8721 .spawn({
8722 let snapshot = display_snapshot.clone();
8723 async move {
8724 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8725 }
8726 })
8727 .await;
8728 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8729
8730 this.update(&mut cx, |this, _| {
8731 this.clear_tasks();
8732 for (key, value) in rows {
8733 this.insert_tasks(key, value);
8734 }
8735 })
8736 .ok();
8737 })
8738 }
8739 fn fetch_runnable_ranges(
8740 snapshot: &DisplaySnapshot,
8741 range: Range<Anchor>,
8742 ) -> Vec<language::RunnableRange> {
8743 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8744 }
8745
8746 fn runnable_rows(
8747 project: Model<Project>,
8748 snapshot: DisplaySnapshot,
8749 runnable_ranges: Vec<RunnableRange>,
8750 mut cx: AsyncWindowContext,
8751 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8752 runnable_ranges
8753 .into_iter()
8754 .filter_map(|mut runnable| {
8755 let tasks = cx
8756 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8757 .ok()?;
8758 if tasks.is_empty() {
8759 return None;
8760 }
8761
8762 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8763
8764 let row = snapshot
8765 .buffer_snapshot
8766 .buffer_line_for_row(MultiBufferRow(point.row))?
8767 .1
8768 .start
8769 .row;
8770
8771 let context_range =
8772 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8773 Some((
8774 (runnable.buffer_id, row),
8775 RunnableTasks {
8776 templates: tasks,
8777 offset: MultiBufferOffset(runnable.run_range.start),
8778 context_range,
8779 column: point.column,
8780 extra_variables: runnable.extra_captures,
8781 },
8782 ))
8783 })
8784 .collect()
8785 }
8786
8787 fn templates_with_tags(
8788 project: &Model<Project>,
8789 runnable: &mut Runnable,
8790 cx: &WindowContext<'_>,
8791 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8792 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8793 let (worktree_id, file) = project
8794 .buffer_for_id(runnable.buffer, cx)
8795 .and_then(|buffer| buffer.read(cx).file())
8796 .map(|file| (file.worktree_id(cx), file.clone()))
8797 .unzip();
8798
8799 (
8800 project.task_store().read(cx).task_inventory().cloned(),
8801 worktree_id,
8802 file,
8803 )
8804 });
8805
8806 let tags = mem::take(&mut runnable.tags);
8807 let mut tags: Vec<_> = tags
8808 .into_iter()
8809 .flat_map(|tag| {
8810 let tag = tag.0.clone();
8811 inventory
8812 .as_ref()
8813 .into_iter()
8814 .flat_map(|inventory| {
8815 inventory.read(cx).list_tasks(
8816 file.clone(),
8817 Some(runnable.language.clone()),
8818 worktree_id,
8819 cx,
8820 )
8821 })
8822 .filter(move |(_, template)| {
8823 template.tags.iter().any(|source_tag| source_tag == &tag)
8824 })
8825 })
8826 .sorted_by_key(|(kind, _)| kind.to_owned())
8827 .collect();
8828 if let Some((leading_tag_source, _)) = tags.first() {
8829 // Strongest source wins; if we have worktree tag binding, prefer that to
8830 // global and language bindings;
8831 // if we have a global binding, prefer that to language binding.
8832 let first_mismatch = tags
8833 .iter()
8834 .position(|(tag_source, _)| tag_source != leading_tag_source);
8835 if let Some(index) = first_mismatch {
8836 tags.truncate(index);
8837 }
8838 }
8839
8840 tags
8841 }
8842
8843 pub fn move_to_enclosing_bracket(
8844 &mut self,
8845 _: &MoveToEnclosingBracket,
8846 cx: &mut ViewContext<Self>,
8847 ) {
8848 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8849 s.move_offsets_with(|snapshot, selection| {
8850 let Some(enclosing_bracket_ranges) =
8851 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8852 else {
8853 return;
8854 };
8855
8856 let mut best_length = usize::MAX;
8857 let mut best_inside = false;
8858 let mut best_in_bracket_range = false;
8859 let mut best_destination = None;
8860 for (open, close) in enclosing_bracket_ranges {
8861 let close = close.to_inclusive();
8862 let length = close.end() - open.start;
8863 let inside = selection.start >= open.end && selection.end <= *close.start();
8864 let in_bracket_range = open.to_inclusive().contains(&selection.head())
8865 || close.contains(&selection.head());
8866
8867 // If best is next to a bracket and current isn't, skip
8868 if !in_bracket_range && best_in_bracket_range {
8869 continue;
8870 }
8871
8872 // Prefer smaller lengths unless best is inside and current isn't
8873 if length > best_length && (best_inside || !inside) {
8874 continue;
8875 }
8876
8877 best_length = length;
8878 best_inside = inside;
8879 best_in_bracket_range = in_bracket_range;
8880 best_destination = Some(
8881 if close.contains(&selection.start) && close.contains(&selection.end) {
8882 if inside {
8883 open.end
8884 } else {
8885 open.start
8886 }
8887 } else if inside {
8888 *close.start()
8889 } else {
8890 *close.end()
8891 },
8892 );
8893 }
8894
8895 if let Some(destination) = best_destination {
8896 selection.collapse_to(destination, SelectionGoal::None);
8897 }
8898 })
8899 });
8900 }
8901
8902 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
8903 self.end_selection(cx);
8904 self.selection_history.mode = SelectionHistoryMode::Undoing;
8905 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
8906 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8907 self.select_next_state = entry.select_next_state;
8908 self.select_prev_state = entry.select_prev_state;
8909 self.add_selections_state = entry.add_selections_state;
8910 self.request_autoscroll(Autoscroll::newest(), cx);
8911 }
8912 self.selection_history.mode = SelectionHistoryMode::Normal;
8913 }
8914
8915 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
8916 self.end_selection(cx);
8917 self.selection_history.mode = SelectionHistoryMode::Redoing;
8918 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
8919 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8920 self.select_next_state = entry.select_next_state;
8921 self.select_prev_state = entry.select_prev_state;
8922 self.add_selections_state = entry.add_selections_state;
8923 self.request_autoscroll(Autoscroll::newest(), cx);
8924 }
8925 self.selection_history.mode = SelectionHistoryMode::Normal;
8926 }
8927
8928 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
8929 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
8930 }
8931
8932 pub fn expand_excerpts_down(
8933 &mut self,
8934 action: &ExpandExcerptsDown,
8935 cx: &mut ViewContext<Self>,
8936 ) {
8937 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
8938 }
8939
8940 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
8941 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
8942 }
8943
8944 pub fn expand_excerpts_for_direction(
8945 &mut self,
8946 lines: u32,
8947 direction: ExpandExcerptDirection,
8948 cx: &mut ViewContext<Self>,
8949 ) {
8950 let selections = self.selections.disjoint_anchors();
8951
8952 let lines = if lines == 0 {
8953 EditorSettings::get_global(cx).expand_excerpt_lines
8954 } else {
8955 lines
8956 };
8957
8958 self.buffer.update(cx, |buffer, cx| {
8959 buffer.expand_excerpts(
8960 selections
8961 .iter()
8962 .map(|selection| selection.head().excerpt_id)
8963 .dedup(),
8964 lines,
8965 direction,
8966 cx,
8967 )
8968 })
8969 }
8970
8971 pub fn expand_excerpt(
8972 &mut self,
8973 excerpt: ExcerptId,
8974 direction: ExpandExcerptDirection,
8975 cx: &mut ViewContext<Self>,
8976 ) {
8977 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
8978 self.buffer.update(cx, |buffer, cx| {
8979 buffer.expand_excerpts([excerpt], lines, direction, cx)
8980 })
8981 }
8982
8983 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8984 self.go_to_diagnostic_impl(Direction::Next, cx)
8985 }
8986
8987 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8988 self.go_to_diagnostic_impl(Direction::Prev, cx)
8989 }
8990
8991 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8992 let buffer = self.buffer.read(cx).snapshot(cx);
8993 let selection = self.selections.newest::<usize>(cx);
8994
8995 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8996 if direction == Direction::Next {
8997 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8998 let (group_id, jump_to) = popover.activation_info();
8999 if self.activate_diagnostics(group_id, cx) {
9000 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9001 let mut new_selection = s.newest_anchor().clone();
9002 new_selection.collapse_to(jump_to, SelectionGoal::None);
9003 s.select_anchors(vec![new_selection.clone()]);
9004 });
9005 }
9006 return;
9007 }
9008 }
9009
9010 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9011 active_diagnostics
9012 .primary_range
9013 .to_offset(&buffer)
9014 .to_inclusive()
9015 });
9016 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9017 if active_primary_range.contains(&selection.head()) {
9018 *active_primary_range.start()
9019 } else {
9020 selection.head()
9021 }
9022 } else {
9023 selection.head()
9024 };
9025 let snapshot = self.snapshot(cx);
9026 loop {
9027 let diagnostics = if direction == Direction::Prev {
9028 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9029 } else {
9030 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9031 }
9032 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9033 let group = diagnostics
9034 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9035 // be sorted in a stable way
9036 // skip until we are at current active diagnostic, if it exists
9037 .skip_while(|entry| {
9038 (match direction {
9039 Direction::Prev => entry.range.start >= search_start,
9040 Direction::Next => entry.range.start <= search_start,
9041 }) && self
9042 .active_diagnostics
9043 .as_ref()
9044 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9045 })
9046 .find_map(|entry| {
9047 if entry.diagnostic.is_primary
9048 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9049 && !entry.range.is_empty()
9050 // if we match with the active diagnostic, skip it
9051 && Some(entry.diagnostic.group_id)
9052 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9053 {
9054 Some((entry.range, entry.diagnostic.group_id))
9055 } else {
9056 None
9057 }
9058 });
9059
9060 if let Some((primary_range, group_id)) = group {
9061 if self.activate_diagnostics(group_id, cx) {
9062 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9063 s.select(vec![Selection {
9064 id: selection.id,
9065 start: primary_range.start,
9066 end: primary_range.start,
9067 reversed: false,
9068 goal: SelectionGoal::None,
9069 }]);
9070 });
9071 }
9072 break;
9073 } else {
9074 // Cycle around to the start of the buffer, potentially moving back to the start of
9075 // the currently active diagnostic.
9076 active_primary_range.take();
9077 if direction == Direction::Prev {
9078 if search_start == buffer.len() {
9079 break;
9080 } else {
9081 search_start = buffer.len();
9082 }
9083 } else if search_start == 0 {
9084 break;
9085 } else {
9086 search_start = 0;
9087 }
9088 }
9089 }
9090 }
9091
9092 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9093 let snapshot = self.snapshot(cx);
9094 let selection = self.selections.newest::<Point>(cx);
9095 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9096 }
9097
9098 fn go_to_hunk_after_position(
9099 &mut self,
9100 snapshot: &EditorSnapshot,
9101 position: Point,
9102 cx: &mut ViewContext<'_, Editor>,
9103 ) -> Option<MultiBufferDiffHunk> {
9104 for (ix, position) in [position, Point::zero()].into_iter().enumerate() {
9105 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9106 snapshot,
9107 position,
9108 ix > 0,
9109 snapshot.diff_map.diff_hunks_in_range(
9110 position + Point::new(1, 0)..snapshot.buffer_snapshot.max_point(),
9111 &snapshot.buffer_snapshot,
9112 ),
9113 cx,
9114 ) {
9115 return Some(hunk);
9116 }
9117 }
9118 None
9119 }
9120
9121 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9122 let snapshot = self.snapshot(cx);
9123 let selection = self.selections.newest::<Point>(cx);
9124 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9125 }
9126
9127 fn go_to_hunk_before_position(
9128 &mut self,
9129 snapshot: &EditorSnapshot,
9130 position: Point,
9131 cx: &mut ViewContext<'_, Editor>,
9132 ) -> Option<MultiBufferDiffHunk> {
9133 for (ix, position) in [position, snapshot.buffer_snapshot.max_point()]
9134 .into_iter()
9135 .enumerate()
9136 {
9137 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9138 snapshot,
9139 position,
9140 ix > 0,
9141 snapshot
9142 .diff_map
9143 .diff_hunks_in_range_rev(Point::zero()..position, &snapshot.buffer_snapshot),
9144 cx,
9145 ) {
9146 return Some(hunk);
9147 }
9148 }
9149 None
9150 }
9151
9152 fn go_to_next_hunk_in_direction(
9153 &mut self,
9154 snapshot: &DisplaySnapshot,
9155 initial_point: Point,
9156 is_wrapped: bool,
9157 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9158 cx: &mut ViewContext<Editor>,
9159 ) -> Option<MultiBufferDiffHunk> {
9160 let display_point = initial_point.to_display_point(snapshot);
9161 let mut hunks = hunks
9162 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9163 .filter(|(display_hunk, _)| {
9164 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9165 })
9166 .dedup();
9167
9168 if let Some((display_hunk, hunk)) = hunks.next() {
9169 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9170 let row = display_hunk.start_display_row();
9171 let point = DisplayPoint::new(row, 0);
9172 s.select_display_ranges([point..point]);
9173 });
9174
9175 Some(hunk)
9176 } else {
9177 None
9178 }
9179 }
9180
9181 pub fn go_to_definition(
9182 &mut self,
9183 _: &GoToDefinition,
9184 cx: &mut ViewContext<Self>,
9185 ) -> Task<Result<Navigated>> {
9186 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9187 cx.spawn(|editor, mut cx| async move {
9188 if definition.await? == Navigated::Yes {
9189 return Ok(Navigated::Yes);
9190 }
9191 match editor.update(&mut cx, |editor, cx| {
9192 editor.find_all_references(&FindAllReferences, cx)
9193 })? {
9194 Some(references) => references.await,
9195 None => Ok(Navigated::No),
9196 }
9197 })
9198 }
9199
9200 pub fn go_to_declaration(
9201 &mut self,
9202 _: &GoToDeclaration,
9203 cx: &mut ViewContext<Self>,
9204 ) -> Task<Result<Navigated>> {
9205 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9206 }
9207
9208 pub fn go_to_declaration_split(
9209 &mut self,
9210 _: &GoToDeclaration,
9211 cx: &mut ViewContext<Self>,
9212 ) -> Task<Result<Navigated>> {
9213 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9214 }
9215
9216 pub fn go_to_implementation(
9217 &mut self,
9218 _: &GoToImplementation,
9219 cx: &mut ViewContext<Self>,
9220 ) -> Task<Result<Navigated>> {
9221 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9222 }
9223
9224 pub fn go_to_implementation_split(
9225 &mut self,
9226 _: &GoToImplementationSplit,
9227 cx: &mut ViewContext<Self>,
9228 ) -> Task<Result<Navigated>> {
9229 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9230 }
9231
9232 pub fn go_to_type_definition(
9233 &mut self,
9234 _: &GoToTypeDefinition,
9235 cx: &mut ViewContext<Self>,
9236 ) -> Task<Result<Navigated>> {
9237 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9238 }
9239
9240 pub fn go_to_definition_split(
9241 &mut self,
9242 _: &GoToDefinitionSplit,
9243 cx: &mut ViewContext<Self>,
9244 ) -> Task<Result<Navigated>> {
9245 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9246 }
9247
9248 pub fn go_to_type_definition_split(
9249 &mut self,
9250 _: &GoToTypeDefinitionSplit,
9251 cx: &mut ViewContext<Self>,
9252 ) -> Task<Result<Navigated>> {
9253 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9254 }
9255
9256 fn go_to_definition_of_kind(
9257 &mut self,
9258 kind: GotoDefinitionKind,
9259 split: bool,
9260 cx: &mut ViewContext<Self>,
9261 ) -> Task<Result<Navigated>> {
9262 let Some(provider) = self.semantics_provider.clone() else {
9263 return Task::ready(Ok(Navigated::No));
9264 };
9265 let head = self.selections.newest::<usize>(cx).head();
9266 let buffer = self.buffer.read(cx);
9267 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9268 text_anchor
9269 } else {
9270 return Task::ready(Ok(Navigated::No));
9271 };
9272
9273 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9274 return Task::ready(Ok(Navigated::No));
9275 };
9276
9277 cx.spawn(|editor, mut cx| async move {
9278 let definitions = definitions.await?;
9279 let navigated = editor
9280 .update(&mut cx, |editor, cx| {
9281 editor.navigate_to_hover_links(
9282 Some(kind),
9283 definitions
9284 .into_iter()
9285 .filter(|location| {
9286 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9287 })
9288 .map(HoverLink::Text)
9289 .collect::<Vec<_>>(),
9290 split,
9291 cx,
9292 )
9293 })?
9294 .await?;
9295 anyhow::Ok(navigated)
9296 })
9297 }
9298
9299 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9300 let selection = self.selections.newest_anchor();
9301 let head = selection.head();
9302 let tail = selection.tail();
9303
9304 let Some((buffer, start_position)) =
9305 self.buffer.read(cx).text_anchor_for_position(head, cx)
9306 else {
9307 return;
9308 };
9309
9310 let end_position = if head != tail {
9311 let Some((_, pos)) = self.buffer.read(cx).text_anchor_for_position(tail, cx) else {
9312 return;
9313 };
9314 Some(pos)
9315 } else {
9316 None
9317 };
9318
9319 let url_finder = cx.spawn(|editor, mut cx| async move {
9320 let url = if let Some(end_pos) = end_position {
9321 find_url_from_range(&buffer, start_position..end_pos, cx.clone())
9322 } else {
9323 find_url(&buffer, start_position, cx.clone()).map(|(_, url)| url)
9324 };
9325
9326 if let Some(url) = url {
9327 editor.update(&mut cx, |_, cx| {
9328 cx.open_url(&url);
9329 })
9330 } else {
9331 Ok(())
9332 }
9333 });
9334
9335 url_finder.detach();
9336 }
9337
9338 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9339 let Some(workspace) = self.workspace() else {
9340 return;
9341 };
9342
9343 let position = self.selections.newest_anchor().head();
9344
9345 let Some((buffer, buffer_position)) =
9346 self.buffer.read(cx).text_anchor_for_position(position, cx)
9347 else {
9348 return;
9349 };
9350
9351 let project = self.project.clone();
9352
9353 cx.spawn(|_, mut cx| async move {
9354 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9355
9356 if let Some((_, path)) = result {
9357 workspace
9358 .update(&mut cx, |workspace, cx| {
9359 workspace.open_resolved_path(path, cx)
9360 })?
9361 .await?;
9362 }
9363 anyhow::Ok(())
9364 })
9365 .detach();
9366 }
9367
9368 pub(crate) fn navigate_to_hover_links(
9369 &mut self,
9370 kind: Option<GotoDefinitionKind>,
9371 mut definitions: Vec<HoverLink>,
9372 split: bool,
9373 cx: &mut ViewContext<Editor>,
9374 ) -> Task<Result<Navigated>> {
9375 // If there is one definition, just open it directly
9376 if definitions.len() == 1 {
9377 let definition = definitions.pop().unwrap();
9378
9379 enum TargetTaskResult {
9380 Location(Option<Location>),
9381 AlreadyNavigated,
9382 }
9383
9384 let target_task = match definition {
9385 HoverLink::Text(link) => {
9386 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9387 }
9388 HoverLink::InlayHint(lsp_location, server_id) => {
9389 let computation = self.compute_target_location(lsp_location, server_id, cx);
9390 cx.background_executor().spawn(async move {
9391 let location = computation.await?;
9392 Ok(TargetTaskResult::Location(location))
9393 })
9394 }
9395 HoverLink::Url(url) => {
9396 cx.open_url(&url);
9397 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9398 }
9399 HoverLink::File(path) => {
9400 if let Some(workspace) = self.workspace() {
9401 cx.spawn(|_, mut cx| async move {
9402 workspace
9403 .update(&mut cx, |workspace, cx| {
9404 workspace.open_resolved_path(path, cx)
9405 })?
9406 .await
9407 .map(|_| TargetTaskResult::AlreadyNavigated)
9408 })
9409 } else {
9410 Task::ready(Ok(TargetTaskResult::Location(None)))
9411 }
9412 }
9413 };
9414 cx.spawn(|editor, mut cx| async move {
9415 let target = match target_task.await.context("target resolution task")? {
9416 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9417 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9418 TargetTaskResult::Location(Some(target)) => target,
9419 };
9420
9421 editor.update(&mut cx, |editor, cx| {
9422 let Some(workspace) = editor.workspace() else {
9423 return Navigated::No;
9424 };
9425 let pane = workspace.read(cx).active_pane().clone();
9426
9427 let range = target.range.to_offset(target.buffer.read(cx));
9428 let range = editor.range_for_match(&range);
9429
9430 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9431 let buffer = target.buffer.read(cx);
9432 let range = check_multiline_range(buffer, range);
9433 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9434 s.select_ranges([range]);
9435 });
9436 } else {
9437 cx.window_context().defer(move |cx| {
9438 let target_editor: View<Self> =
9439 workspace.update(cx, |workspace, cx| {
9440 let pane = if split {
9441 workspace.adjacent_pane(cx)
9442 } else {
9443 workspace.active_pane().clone()
9444 };
9445
9446 workspace.open_project_item(
9447 pane,
9448 target.buffer.clone(),
9449 true,
9450 true,
9451 cx,
9452 )
9453 });
9454 target_editor.update(cx, |target_editor, cx| {
9455 // When selecting a definition in a different buffer, disable the nav history
9456 // to avoid creating a history entry at the previous cursor location.
9457 pane.update(cx, |pane, _| pane.disable_history());
9458 let buffer = target.buffer.read(cx);
9459 let range = check_multiline_range(buffer, range);
9460 target_editor.change_selections(
9461 Some(Autoscroll::focused()),
9462 cx,
9463 |s| {
9464 s.select_ranges([range]);
9465 },
9466 );
9467 pane.update(cx, |pane, _| pane.enable_history());
9468 });
9469 });
9470 }
9471 Navigated::Yes
9472 })
9473 })
9474 } else if !definitions.is_empty() {
9475 cx.spawn(|editor, mut cx| async move {
9476 let (title, location_tasks, workspace) = editor
9477 .update(&mut cx, |editor, cx| {
9478 let tab_kind = match kind {
9479 Some(GotoDefinitionKind::Implementation) => "Implementations",
9480 _ => "Definitions",
9481 };
9482 let title = definitions
9483 .iter()
9484 .find_map(|definition| match definition {
9485 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9486 let buffer = origin.buffer.read(cx);
9487 format!(
9488 "{} for {}",
9489 tab_kind,
9490 buffer
9491 .text_for_range(origin.range.clone())
9492 .collect::<String>()
9493 )
9494 }),
9495 HoverLink::InlayHint(_, _) => None,
9496 HoverLink::Url(_) => None,
9497 HoverLink::File(_) => None,
9498 })
9499 .unwrap_or(tab_kind.to_string());
9500 let location_tasks = definitions
9501 .into_iter()
9502 .map(|definition| match definition {
9503 HoverLink::Text(link) => Task::ready(Ok(Some(link.target))),
9504 HoverLink::InlayHint(lsp_location, server_id) => {
9505 editor.compute_target_location(lsp_location, server_id, cx)
9506 }
9507 HoverLink::Url(_) => Task::ready(Ok(None)),
9508 HoverLink::File(_) => Task::ready(Ok(None)),
9509 })
9510 .collect::<Vec<_>>();
9511 (title, location_tasks, editor.workspace().clone())
9512 })
9513 .context("location tasks preparation")?;
9514
9515 let locations = future::join_all(location_tasks)
9516 .await
9517 .into_iter()
9518 .filter_map(|location| location.transpose())
9519 .collect::<Result<_>>()
9520 .context("location tasks")?;
9521
9522 let Some(workspace) = workspace else {
9523 return Ok(Navigated::No);
9524 };
9525 let opened = workspace
9526 .update(&mut cx, |workspace, cx| {
9527 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9528 })
9529 .ok();
9530
9531 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9532 })
9533 } else {
9534 Task::ready(Ok(Navigated::No))
9535 }
9536 }
9537
9538 fn compute_target_location(
9539 &self,
9540 lsp_location: lsp::Location,
9541 server_id: LanguageServerId,
9542 cx: &mut ViewContext<Self>,
9543 ) -> Task<anyhow::Result<Option<Location>>> {
9544 let Some(project) = self.project.clone() else {
9545 return Task::ready(Ok(None));
9546 };
9547
9548 cx.spawn(move |editor, mut cx| async move {
9549 let location_task = editor.update(&mut cx, |_, cx| {
9550 project.update(cx, |project, cx| {
9551 let language_server_name = project
9552 .language_server_statuses(cx)
9553 .find(|(id, _)| server_id == *id)
9554 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9555 language_server_name.map(|language_server_name| {
9556 project.open_local_buffer_via_lsp(
9557 lsp_location.uri.clone(),
9558 server_id,
9559 language_server_name,
9560 cx,
9561 )
9562 })
9563 })
9564 })?;
9565 let location = match location_task {
9566 Some(task) => Some({
9567 let target_buffer_handle = task.await.context("open local buffer")?;
9568 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9569 let target_start = target_buffer
9570 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9571 let target_end = target_buffer
9572 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9573 target_buffer.anchor_after(target_start)
9574 ..target_buffer.anchor_before(target_end)
9575 })?;
9576 Location {
9577 buffer: target_buffer_handle,
9578 range,
9579 }
9580 }),
9581 None => None,
9582 };
9583 Ok(location)
9584 })
9585 }
9586
9587 pub fn find_all_references(
9588 &mut self,
9589 _: &FindAllReferences,
9590 cx: &mut ViewContext<Self>,
9591 ) -> Option<Task<Result<Navigated>>> {
9592 let selection = self.selections.newest::<usize>(cx);
9593 let multi_buffer = self.buffer.read(cx);
9594 let head = selection.head();
9595
9596 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9597 let head_anchor = multi_buffer_snapshot.anchor_at(
9598 head,
9599 if head < selection.tail() {
9600 Bias::Right
9601 } else {
9602 Bias::Left
9603 },
9604 );
9605
9606 match self
9607 .find_all_references_task_sources
9608 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9609 {
9610 Ok(_) => {
9611 log::info!(
9612 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9613 );
9614 return None;
9615 }
9616 Err(i) => {
9617 self.find_all_references_task_sources.insert(i, head_anchor);
9618 }
9619 }
9620
9621 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9622 let workspace = self.workspace()?;
9623 let project = workspace.read(cx).project().clone();
9624 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9625 Some(cx.spawn(|editor, mut cx| async move {
9626 let _cleanup = defer({
9627 let mut cx = cx.clone();
9628 move || {
9629 let _ = editor.update(&mut cx, |editor, _| {
9630 if let Ok(i) =
9631 editor
9632 .find_all_references_task_sources
9633 .binary_search_by(|anchor| {
9634 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9635 })
9636 {
9637 editor.find_all_references_task_sources.remove(i);
9638 }
9639 });
9640 }
9641 });
9642
9643 let locations = references.await?;
9644 if locations.is_empty() {
9645 return anyhow::Ok(Navigated::No);
9646 }
9647
9648 workspace.update(&mut cx, |workspace, cx| {
9649 let title = locations
9650 .first()
9651 .as_ref()
9652 .map(|location| {
9653 let buffer = location.buffer.read(cx);
9654 format!(
9655 "References to `{}`",
9656 buffer
9657 .text_for_range(location.range.clone())
9658 .collect::<String>()
9659 )
9660 })
9661 .unwrap();
9662 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9663 Navigated::Yes
9664 })
9665 }))
9666 }
9667
9668 /// Opens a multibuffer with the given project locations in it
9669 pub fn open_locations_in_multibuffer(
9670 workspace: &mut Workspace,
9671 mut locations: Vec<Location>,
9672 title: String,
9673 split: bool,
9674 cx: &mut ViewContext<Workspace>,
9675 ) {
9676 // If there are multiple definitions, open them in a multibuffer
9677 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9678 let mut locations = locations.into_iter().peekable();
9679 let mut ranges_to_highlight = Vec::new();
9680 let capability = workspace.project().read(cx).capability();
9681
9682 let excerpt_buffer = cx.new_model(|cx| {
9683 let mut multibuffer = MultiBuffer::new(capability);
9684 while let Some(location) = locations.next() {
9685 let buffer = location.buffer.read(cx);
9686 let mut ranges_for_buffer = Vec::new();
9687 let range = location.range.to_offset(buffer);
9688 ranges_for_buffer.push(range.clone());
9689
9690 while let Some(next_location) = locations.peek() {
9691 if next_location.buffer == location.buffer {
9692 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9693 locations.next();
9694 } else {
9695 break;
9696 }
9697 }
9698
9699 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9700 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9701 location.buffer.clone(),
9702 ranges_for_buffer,
9703 DEFAULT_MULTIBUFFER_CONTEXT,
9704 cx,
9705 ))
9706 }
9707
9708 multibuffer.with_title(title)
9709 });
9710
9711 let editor = cx.new_view(|cx| {
9712 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9713 });
9714 editor.update(cx, |editor, cx| {
9715 if let Some(first_range) = ranges_to_highlight.first() {
9716 editor.change_selections(None, cx, |selections| {
9717 selections.clear_disjoint();
9718 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9719 });
9720 }
9721 editor.highlight_background::<Self>(
9722 &ranges_to_highlight,
9723 |theme| theme.editor_highlighted_line_background,
9724 cx,
9725 );
9726 editor.register_buffers_with_language_servers(cx);
9727 });
9728
9729 let item = Box::new(editor);
9730 let item_id = item.item_id();
9731
9732 if split {
9733 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9734 } else {
9735 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9736 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9737 pane.close_current_preview_item(cx)
9738 } else {
9739 None
9740 }
9741 });
9742 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9743 }
9744 workspace.active_pane().update(cx, |pane, cx| {
9745 pane.set_preview_item_id(Some(item_id), cx);
9746 });
9747 }
9748
9749 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9750 use language::ToOffset as _;
9751
9752 let provider = self.semantics_provider.clone()?;
9753 let selection = self.selections.newest_anchor().clone();
9754 let (cursor_buffer, cursor_buffer_position) = self
9755 .buffer
9756 .read(cx)
9757 .text_anchor_for_position(selection.head(), cx)?;
9758 let (tail_buffer, cursor_buffer_position_end) = self
9759 .buffer
9760 .read(cx)
9761 .text_anchor_for_position(selection.tail(), cx)?;
9762 if tail_buffer != cursor_buffer {
9763 return None;
9764 }
9765
9766 let snapshot = cursor_buffer.read(cx).snapshot();
9767 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9768 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9769 let prepare_rename = provider
9770 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
9771 .unwrap_or_else(|| Task::ready(Ok(None)));
9772 drop(snapshot);
9773
9774 Some(cx.spawn(|this, mut cx| async move {
9775 let rename_range = if let Some(range) = prepare_rename.await? {
9776 Some(range)
9777 } else {
9778 this.update(&mut cx, |this, cx| {
9779 let buffer = this.buffer.read(cx).snapshot(cx);
9780 let mut buffer_highlights = this
9781 .document_highlights_for_position(selection.head(), &buffer)
9782 .filter(|highlight| {
9783 highlight.start.excerpt_id == selection.head().excerpt_id
9784 && highlight.end.excerpt_id == selection.head().excerpt_id
9785 });
9786 buffer_highlights
9787 .next()
9788 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9789 })?
9790 };
9791 if let Some(rename_range) = rename_range {
9792 this.update(&mut cx, |this, cx| {
9793 let snapshot = cursor_buffer.read(cx).snapshot();
9794 let rename_buffer_range = rename_range.to_offset(&snapshot);
9795 let cursor_offset_in_rename_range =
9796 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9797 let cursor_offset_in_rename_range_end =
9798 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9799
9800 this.take_rename(false, cx);
9801 let buffer = this.buffer.read(cx).read(cx);
9802 let cursor_offset = selection.head().to_offset(&buffer);
9803 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9804 let rename_end = rename_start + rename_buffer_range.len();
9805 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9806 let mut old_highlight_id = None;
9807 let old_name: Arc<str> = buffer
9808 .chunks(rename_start..rename_end, true)
9809 .map(|chunk| {
9810 if old_highlight_id.is_none() {
9811 old_highlight_id = chunk.syntax_highlight_id;
9812 }
9813 chunk.text
9814 })
9815 .collect::<String>()
9816 .into();
9817
9818 drop(buffer);
9819
9820 // Position the selection in the rename editor so that it matches the current selection.
9821 this.show_local_selections = false;
9822 let rename_editor = cx.new_view(|cx| {
9823 let mut editor = Editor::single_line(cx);
9824 editor.buffer.update(cx, |buffer, cx| {
9825 buffer.edit([(0..0, old_name.clone())], None, cx)
9826 });
9827 let rename_selection_range = match cursor_offset_in_rename_range
9828 .cmp(&cursor_offset_in_rename_range_end)
9829 {
9830 Ordering::Equal => {
9831 editor.select_all(&SelectAll, cx);
9832 return editor;
9833 }
9834 Ordering::Less => {
9835 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
9836 }
9837 Ordering::Greater => {
9838 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
9839 }
9840 };
9841 if rename_selection_range.end > old_name.len() {
9842 editor.select_all(&SelectAll, cx);
9843 } else {
9844 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9845 s.select_ranges([rename_selection_range]);
9846 });
9847 }
9848 editor
9849 });
9850 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
9851 if e == &EditorEvent::Focused {
9852 cx.emit(EditorEvent::FocusedIn)
9853 }
9854 })
9855 .detach();
9856
9857 let write_highlights =
9858 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
9859 let read_highlights =
9860 this.clear_background_highlights::<DocumentHighlightRead>(cx);
9861 let ranges = write_highlights
9862 .iter()
9863 .flat_map(|(_, ranges)| ranges.iter())
9864 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
9865 .cloned()
9866 .collect();
9867
9868 this.highlight_text::<Rename>(
9869 ranges,
9870 HighlightStyle {
9871 fade_out: Some(0.6),
9872 ..Default::default()
9873 },
9874 cx,
9875 );
9876 let rename_focus_handle = rename_editor.focus_handle(cx);
9877 cx.focus(&rename_focus_handle);
9878 let block_id = this.insert_blocks(
9879 [BlockProperties {
9880 style: BlockStyle::Flex,
9881 placement: BlockPlacement::Below(range.start),
9882 height: 1,
9883 render: Arc::new({
9884 let rename_editor = rename_editor.clone();
9885 move |cx: &mut BlockContext| {
9886 let mut text_style = cx.editor_style.text.clone();
9887 if let Some(highlight_style) = old_highlight_id
9888 .and_then(|h| h.style(&cx.editor_style.syntax))
9889 {
9890 text_style = text_style.highlight(highlight_style);
9891 }
9892 div()
9893 .block_mouse_down()
9894 .pl(cx.anchor_x)
9895 .child(EditorElement::new(
9896 &rename_editor,
9897 EditorStyle {
9898 background: cx.theme().system().transparent,
9899 local_player: cx.editor_style.local_player,
9900 text: text_style,
9901 scrollbar_width: cx.editor_style.scrollbar_width,
9902 syntax: cx.editor_style.syntax.clone(),
9903 status: cx.editor_style.status.clone(),
9904 inlay_hints_style: HighlightStyle {
9905 font_weight: Some(FontWeight::BOLD),
9906 ..make_inlay_hints_style(cx)
9907 },
9908 inline_completion_styles: make_suggestion_styles(
9909 cx,
9910 ),
9911 ..EditorStyle::default()
9912 },
9913 ))
9914 .into_any_element()
9915 }
9916 }),
9917 priority: 0,
9918 }],
9919 Some(Autoscroll::fit()),
9920 cx,
9921 )[0];
9922 this.pending_rename = Some(RenameState {
9923 range,
9924 old_name,
9925 editor: rename_editor,
9926 block_id,
9927 });
9928 })?;
9929 }
9930
9931 Ok(())
9932 }))
9933 }
9934
9935 pub fn confirm_rename(
9936 &mut self,
9937 _: &ConfirmRename,
9938 cx: &mut ViewContext<Self>,
9939 ) -> Option<Task<Result<()>>> {
9940 let rename = self.take_rename(false, cx)?;
9941 let workspace = self.workspace()?.downgrade();
9942 let (buffer, start) = self
9943 .buffer
9944 .read(cx)
9945 .text_anchor_for_position(rename.range.start, cx)?;
9946 let (end_buffer, _) = self
9947 .buffer
9948 .read(cx)
9949 .text_anchor_for_position(rename.range.end, cx)?;
9950 if buffer != end_buffer {
9951 return None;
9952 }
9953
9954 let old_name = rename.old_name;
9955 let new_name = rename.editor.read(cx).text(cx);
9956
9957 let rename = self.semantics_provider.as_ref()?.perform_rename(
9958 &buffer,
9959 start,
9960 new_name.clone(),
9961 cx,
9962 )?;
9963
9964 Some(cx.spawn(|editor, mut cx| async move {
9965 let project_transaction = rename.await?;
9966 Self::open_project_transaction(
9967 &editor,
9968 workspace,
9969 project_transaction,
9970 format!("Rename: {} → {}", old_name, new_name),
9971 cx.clone(),
9972 )
9973 .await?;
9974
9975 editor.update(&mut cx, |editor, cx| {
9976 editor.refresh_document_highlights(cx);
9977 })?;
9978 Ok(())
9979 }))
9980 }
9981
9982 fn take_rename(
9983 &mut self,
9984 moving_cursor: bool,
9985 cx: &mut ViewContext<Self>,
9986 ) -> Option<RenameState> {
9987 let rename = self.pending_rename.take()?;
9988 if rename.editor.focus_handle(cx).is_focused(cx) {
9989 cx.focus(&self.focus_handle);
9990 }
9991
9992 self.remove_blocks(
9993 [rename.block_id].into_iter().collect(),
9994 Some(Autoscroll::fit()),
9995 cx,
9996 );
9997 self.clear_highlights::<Rename>(cx);
9998 self.show_local_selections = true;
9999
10000 if moving_cursor {
10001 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10002 editor.selections.newest::<usize>(cx).head()
10003 });
10004
10005 // Update the selection to match the position of the selection inside
10006 // the rename editor.
10007 let snapshot = self.buffer.read(cx).read(cx);
10008 let rename_range = rename.range.to_offset(&snapshot);
10009 let cursor_in_editor = snapshot
10010 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10011 .min(rename_range.end);
10012 drop(snapshot);
10013
10014 self.change_selections(None, cx, |s| {
10015 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10016 });
10017 } else {
10018 self.refresh_document_highlights(cx);
10019 }
10020
10021 Some(rename)
10022 }
10023
10024 pub fn pending_rename(&self) -> Option<&RenameState> {
10025 self.pending_rename.as_ref()
10026 }
10027
10028 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10029 let project = match &self.project {
10030 Some(project) => project.clone(),
10031 None => return None,
10032 };
10033
10034 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10035 }
10036
10037 fn format_selections(
10038 &mut self,
10039 _: &FormatSelections,
10040 cx: &mut ViewContext<Self>,
10041 ) -> Option<Task<Result<()>>> {
10042 let project = match &self.project {
10043 Some(project) => project.clone(),
10044 None => return None,
10045 };
10046
10047 let selections = self
10048 .selections
10049 .all_adjusted(cx)
10050 .into_iter()
10051 .filter(|s| !s.is_empty())
10052 .collect_vec();
10053
10054 Some(self.perform_format(
10055 project,
10056 FormatTrigger::Manual,
10057 FormatTarget::Ranges(selections),
10058 cx,
10059 ))
10060 }
10061
10062 fn perform_format(
10063 &mut self,
10064 project: Model<Project>,
10065 trigger: FormatTrigger,
10066 target: FormatTarget,
10067 cx: &mut ViewContext<Self>,
10068 ) -> Task<Result<()>> {
10069 let buffer = self.buffer().clone();
10070 let mut buffers = buffer.read(cx).all_buffers();
10071 if trigger == FormatTrigger::Save {
10072 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10073 }
10074
10075 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10076 let format = project.update(cx, |project, cx| {
10077 project.format(buffers, true, trigger, target, cx)
10078 });
10079
10080 cx.spawn(|_, mut cx| async move {
10081 let transaction = futures::select_biased! {
10082 () = timeout => {
10083 log::warn!("timed out waiting for formatting");
10084 None
10085 }
10086 transaction = format.log_err().fuse() => transaction,
10087 };
10088
10089 buffer
10090 .update(&mut cx, |buffer, cx| {
10091 if let Some(transaction) = transaction {
10092 if !buffer.is_singleton() {
10093 buffer.push_transaction(&transaction.0, cx);
10094 }
10095 }
10096
10097 cx.notify();
10098 })
10099 .ok();
10100
10101 Ok(())
10102 })
10103 }
10104
10105 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10106 if let Some(project) = self.project.clone() {
10107 self.buffer.update(cx, |multi_buffer, cx| {
10108 project.update(cx, |project, cx| {
10109 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10110 });
10111 })
10112 }
10113 }
10114
10115 fn cancel_language_server_work(
10116 &mut self,
10117 _: &actions::CancelLanguageServerWork,
10118 cx: &mut ViewContext<Self>,
10119 ) {
10120 if let Some(project) = self.project.clone() {
10121 self.buffer.update(cx, |multi_buffer, cx| {
10122 project.update(cx, |project, cx| {
10123 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10124 });
10125 })
10126 }
10127 }
10128
10129 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10130 cx.show_character_palette();
10131 }
10132
10133 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10134 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10135 let buffer = self.buffer.read(cx).snapshot(cx);
10136 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10137 let is_valid = buffer
10138 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10139 .any(|entry| {
10140 entry.diagnostic.is_primary
10141 && !entry.range.is_empty()
10142 && entry.range.start == primary_range_start
10143 && entry.diagnostic.message == active_diagnostics.primary_message
10144 });
10145
10146 if is_valid != active_diagnostics.is_valid {
10147 active_diagnostics.is_valid = is_valid;
10148 let mut new_styles = HashMap::default();
10149 for (block_id, diagnostic) in &active_diagnostics.blocks {
10150 new_styles.insert(
10151 *block_id,
10152 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10153 );
10154 }
10155 self.display_map.update(cx, |display_map, _cx| {
10156 display_map.replace_blocks(new_styles)
10157 });
10158 }
10159 }
10160 }
10161
10162 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10163 self.dismiss_diagnostics(cx);
10164 let snapshot = self.snapshot(cx);
10165 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10166 let buffer = self.buffer.read(cx).snapshot(cx);
10167
10168 let mut primary_range = None;
10169 let mut primary_message = None;
10170 let mut group_end = Point::zero();
10171 let diagnostic_group = buffer
10172 .diagnostic_group::<MultiBufferPoint>(group_id)
10173 .filter_map(|entry| {
10174 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10175 && (entry.range.start.row == entry.range.end.row
10176 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10177 {
10178 return None;
10179 }
10180 if entry.range.end > group_end {
10181 group_end = entry.range.end;
10182 }
10183 if entry.diagnostic.is_primary {
10184 primary_range = Some(entry.range.clone());
10185 primary_message = Some(entry.diagnostic.message.clone());
10186 }
10187 Some(entry)
10188 })
10189 .collect::<Vec<_>>();
10190 let primary_range = primary_range?;
10191 let primary_message = primary_message?;
10192 let primary_range =
10193 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10194
10195 let blocks = display_map
10196 .insert_blocks(
10197 diagnostic_group.iter().map(|entry| {
10198 let diagnostic = entry.diagnostic.clone();
10199 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10200 BlockProperties {
10201 style: BlockStyle::Fixed,
10202 placement: BlockPlacement::Below(
10203 buffer.anchor_after(entry.range.start),
10204 ),
10205 height: message_height,
10206 render: diagnostic_block_renderer(diagnostic, None, true, true),
10207 priority: 0,
10208 }
10209 }),
10210 cx,
10211 )
10212 .into_iter()
10213 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10214 .collect();
10215
10216 Some(ActiveDiagnosticGroup {
10217 primary_range,
10218 primary_message,
10219 group_id,
10220 blocks,
10221 is_valid: true,
10222 })
10223 });
10224 self.active_diagnostics.is_some()
10225 }
10226
10227 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10228 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10229 self.display_map.update(cx, |display_map, cx| {
10230 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10231 });
10232 cx.notify();
10233 }
10234 }
10235
10236 pub fn set_selections_from_remote(
10237 &mut self,
10238 selections: Vec<Selection<Anchor>>,
10239 pending_selection: Option<Selection<Anchor>>,
10240 cx: &mut ViewContext<Self>,
10241 ) {
10242 let old_cursor_position = self.selections.newest_anchor().head();
10243 self.selections.change_with(cx, |s| {
10244 s.select_anchors(selections);
10245 if let Some(pending_selection) = pending_selection {
10246 s.set_pending(pending_selection, SelectMode::Character);
10247 } else {
10248 s.clear_pending();
10249 }
10250 });
10251 self.selections_did_change(false, &old_cursor_position, true, cx);
10252 }
10253
10254 fn push_to_selection_history(&mut self) {
10255 self.selection_history.push(SelectionHistoryEntry {
10256 selections: self.selections.disjoint_anchors(),
10257 select_next_state: self.select_next_state.clone(),
10258 select_prev_state: self.select_prev_state.clone(),
10259 add_selections_state: self.add_selections_state.clone(),
10260 });
10261 }
10262
10263 pub fn transact(
10264 &mut self,
10265 cx: &mut ViewContext<Self>,
10266 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10267 ) -> Option<TransactionId> {
10268 self.start_transaction_at(Instant::now(), cx);
10269 update(self, cx);
10270 self.end_transaction_at(Instant::now(), cx)
10271 }
10272
10273 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10274 self.end_selection(cx);
10275 if let Some(tx_id) = self
10276 .buffer
10277 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10278 {
10279 self.selection_history
10280 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10281 cx.emit(EditorEvent::TransactionBegun {
10282 transaction_id: tx_id,
10283 })
10284 }
10285 }
10286
10287 fn end_transaction_at(
10288 &mut self,
10289 now: Instant,
10290 cx: &mut ViewContext<Self>,
10291 ) -> Option<TransactionId> {
10292 if let Some(transaction_id) = self
10293 .buffer
10294 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10295 {
10296 if let Some((_, end_selections)) =
10297 self.selection_history.transaction_mut(transaction_id)
10298 {
10299 *end_selections = Some(self.selections.disjoint_anchors());
10300 } else {
10301 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10302 }
10303
10304 cx.emit(EditorEvent::Edited { transaction_id });
10305 Some(transaction_id)
10306 } else {
10307 None
10308 }
10309 }
10310
10311 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10312 if self.is_singleton(cx) {
10313 let selection = self.selections.newest::<Point>(cx);
10314
10315 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10316 let range = if selection.is_empty() {
10317 let point = selection.head().to_display_point(&display_map);
10318 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10319 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10320 .to_point(&display_map);
10321 start..end
10322 } else {
10323 selection.range()
10324 };
10325 if display_map.folds_in_range(range).next().is_some() {
10326 self.unfold_lines(&Default::default(), cx)
10327 } else {
10328 self.fold(&Default::default(), cx)
10329 }
10330 } else {
10331 let (display_snapshot, selections) = self.selections.all_adjusted_display(cx);
10332 let mut toggled_buffers = HashSet::default();
10333 for selection in selections {
10334 if let Some(buffer_id) = display_snapshot
10335 .display_point_to_anchor(selection.head(), Bias::Right)
10336 .buffer_id
10337 {
10338 if toggled_buffers.insert(buffer_id) {
10339 if self.buffer_folded(buffer_id, cx) {
10340 self.unfold_buffer(buffer_id, cx);
10341 } else {
10342 self.fold_buffer(buffer_id, cx);
10343 }
10344 }
10345 }
10346 if let Some(buffer_id) = display_snapshot
10347 .display_point_to_anchor(selection.tail(), Bias::Left)
10348 .buffer_id
10349 {
10350 if toggled_buffers.insert(buffer_id) {
10351 if self.buffer_folded(buffer_id, cx) {
10352 self.unfold_buffer(buffer_id, cx);
10353 } else {
10354 self.fold_buffer(buffer_id, cx);
10355 }
10356 }
10357 }
10358 }
10359 }
10360 }
10361
10362 pub fn toggle_fold_recursive(
10363 &mut self,
10364 _: &actions::ToggleFoldRecursive,
10365 cx: &mut ViewContext<Self>,
10366 ) {
10367 let selection = self.selections.newest::<Point>(cx);
10368
10369 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10370 let range = if selection.is_empty() {
10371 let point = selection.head().to_display_point(&display_map);
10372 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10373 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10374 .to_point(&display_map);
10375 start..end
10376 } else {
10377 selection.range()
10378 };
10379 if display_map.folds_in_range(range).next().is_some() {
10380 self.unfold_recursive(&Default::default(), cx)
10381 } else {
10382 self.fold_recursive(&Default::default(), cx)
10383 }
10384 }
10385
10386 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10387 if self.is_singleton(cx) {
10388 let mut to_fold = Vec::new();
10389 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10390 let selections = self.selections.all_adjusted(cx);
10391
10392 for selection in selections {
10393 let range = selection.range().sorted();
10394 let buffer_start_row = range.start.row;
10395
10396 if range.start.row != range.end.row {
10397 let mut found = false;
10398 let mut row = range.start.row;
10399 while row <= range.end.row {
10400 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row))
10401 {
10402 found = true;
10403 row = crease.range().end.row + 1;
10404 to_fold.push(crease);
10405 } else {
10406 row += 1
10407 }
10408 }
10409 if found {
10410 continue;
10411 }
10412 }
10413
10414 for row in (0..=range.start.row).rev() {
10415 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10416 if crease.range().end.row >= buffer_start_row {
10417 to_fold.push(crease);
10418 if row <= range.start.row {
10419 break;
10420 }
10421 }
10422 }
10423 }
10424 }
10425
10426 self.fold_creases(to_fold, true, cx);
10427 } else {
10428 let (display_snapshot, selections) = self.selections.all_adjusted_display(cx);
10429 let mut folded_buffers = HashSet::default();
10430 for selection in selections {
10431 if let Some(buffer_id) = display_snapshot
10432 .display_point_to_anchor(selection.head(), Bias::Right)
10433 .buffer_id
10434 {
10435 if folded_buffers.insert(buffer_id) {
10436 self.fold_buffer(buffer_id, cx);
10437 }
10438 }
10439 if let Some(buffer_id) = display_snapshot
10440 .display_point_to_anchor(selection.tail(), Bias::Left)
10441 .buffer_id
10442 {
10443 if folded_buffers.insert(buffer_id) {
10444 self.fold_buffer(buffer_id, cx);
10445 }
10446 }
10447 }
10448 }
10449 }
10450
10451 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10452 if !self.buffer.read(cx).is_singleton() {
10453 return;
10454 }
10455
10456 let fold_at_level = fold_at.level;
10457 let snapshot = self.buffer.read(cx).snapshot(cx);
10458 let mut to_fold = Vec::new();
10459 let mut stack = vec![(0, snapshot.max_row().0, 1)];
10460
10461 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10462 while start_row < end_row {
10463 match self
10464 .snapshot(cx)
10465 .crease_for_buffer_row(MultiBufferRow(start_row))
10466 {
10467 Some(crease) => {
10468 let nested_start_row = crease.range().start.row + 1;
10469 let nested_end_row = crease.range().end.row;
10470
10471 if current_level < fold_at_level {
10472 stack.push((nested_start_row, nested_end_row, current_level + 1));
10473 } else if current_level == fold_at_level {
10474 to_fold.push(crease);
10475 }
10476
10477 start_row = nested_end_row + 1;
10478 }
10479 None => start_row += 1,
10480 }
10481 }
10482 }
10483
10484 self.fold_creases(to_fold, true, cx);
10485 }
10486
10487 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10488 if self.buffer.read(cx).is_singleton() {
10489 let mut fold_ranges = Vec::new();
10490 let snapshot = self.buffer.read(cx).snapshot(cx);
10491
10492 for row in 0..snapshot.max_row().0 {
10493 if let Some(foldable_range) =
10494 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
10495 {
10496 fold_ranges.push(foldable_range);
10497 }
10498 }
10499
10500 self.fold_creases(fold_ranges, true, cx);
10501 } else {
10502 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10503 editor
10504 .update(&mut cx, |editor, cx| {
10505 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10506 editor.fold_buffer(buffer_id, cx);
10507 }
10508 })
10509 .ok();
10510 });
10511 }
10512 }
10513
10514 pub fn fold_function_bodies(
10515 &mut self,
10516 _: &actions::FoldFunctionBodies,
10517 cx: &mut ViewContext<Self>,
10518 ) {
10519 let snapshot = self.buffer.read(cx).snapshot(cx);
10520 let Some((_, _, buffer)) = snapshot.as_singleton() else {
10521 return;
10522 };
10523 let creases = buffer
10524 .function_body_fold_ranges(0..buffer.len())
10525 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
10526 .collect();
10527
10528 self.fold_creases(creases, true, cx);
10529 }
10530
10531 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10532 let mut to_fold = Vec::new();
10533 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10534 let selections = self.selections.all_adjusted(cx);
10535
10536 for selection in selections {
10537 let range = selection.range().sorted();
10538 let buffer_start_row = range.start.row;
10539
10540 if range.start.row != range.end.row {
10541 let mut found = false;
10542 for row in range.start.row..=range.end.row {
10543 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10544 found = true;
10545 to_fold.push(crease);
10546 }
10547 }
10548 if found {
10549 continue;
10550 }
10551 }
10552
10553 for row in (0..=range.start.row).rev() {
10554 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10555 if crease.range().end.row >= buffer_start_row {
10556 to_fold.push(crease);
10557 } else {
10558 break;
10559 }
10560 }
10561 }
10562 }
10563
10564 self.fold_creases(to_fold, true, cx);
10565 }
10566
10567 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10568 let buffer_row = fold_at.buffer_row;
10569 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10570
10571 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
10572 let autoscroll = self
10573 .selections
10574 .all::<Point>(cx)
10575 .iter()
10576 .any(|selection| crease.range().overlaps(&selection.range()));
10577
10578 self.fold_creases(vec![crease], autoscroll, cx);
10579 }
10580 }
10581
10582 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10583 if self.is_singleton(cx) {
10584 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10585 let buffer = &display_map.buffer_snapshot;
10586 let selections = self.selections.all::<Point>(cx);
10587 let ranges = selections
10588 .iter()
10589 .map(|s| {
10590 let range = s.display_range(&display_map).sorted();
10591 let mut start = range.start.to_point(&display_map);
10592 let mut end = range.end.to_point(&display_map);
10593 start.column = 0;
10594 end.column = buffer.line_len(MultiBufferRow(end.row));
10595 start..end
10596 })
10597 .collect::<Vec<_>>();
10598
10599 self.unfold_ranges(&ranges, true, true, cx);
10600 } else {
10601 let (display_snapshot, selections) = self.selections.all_adjusted_display(cx);
10602 let mut unfolded_buffers = HashSet::default();
10603 for selection in selections {
10604 if let Some(buffer_id) = display_snapshot
10605 .display_point_to_anchor(selection.head(), Bias::Right)
10606 .buffer_id
10607 {
10608 if unfolded_buffers.insert(buffer_id) {
10609 self.unfold_buffer(buffer_id, cx);
10610 }
10611 }
10612 if let Some(buffer_id) = display_snapshot
10613 .display_point_to_anchor(selection.tail(), Bias::Left)
10614 .buffer_id
10615 {
10616 if unfolded_buffers.insert(buffer_id) {
10617 self.unfold_buffer(buffer_id, cx);
10618 }
10619 }
10620 }
10621 }
10622 }
10623
10624 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10625 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10626 let selections = self.selections.all::<Point>(cx);
10627 let ranges = selections
10628 .iter()
10629 .map(|s| {
10630 let mut range = s.display_range(&display_map).sorted();
10631 *range.start.column_mut() = 0;
10632 *range.end.column_mut() = display_map.line_len(range.end.row());
10633 let start = range.start.to_point(&display_map);
10634 let end = range.end.to_point(&display_map);
10635 start..end
10636 })
10637 .collect::<Vec<_>>();
10638
10639 self.unfold_ranges(&ranges, true, true, cx);
10640 }
10641
10642 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10643 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10644
10645 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10646 ..Point::new(
10647 unfold_at.buffer_row.0,
10648 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10649 );
10650
10651 let autoscroll = self
10652 .selections
10653 .all::<Point>(cx)
10654 .iter()
10655 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10656
10657 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
10658 }
10659
10660 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10661 if self.buffer.read(cx).is_singleton() {
10662 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10663 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
10664 } else {
10665 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10666 editor
10667 .update(&mut cx, |editor, cx| {
10668 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10669 editor.unfold_buffer(buffer_id, cx);
10670 }
10671 })
10672 .ok();
10673 });
10674 }
10675 }
10676
10677 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10678 let selections = self.selections.all::<Point>(cx);
10679 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10680 let line_mode = self.selections.line_mode;
10681 let ranges = selections
10682 .into_iter()
10683 .map(|s| {
10684 if line_mode {
10685 let start = Point::new(s.start.row, 0);
10686 let end = Point::new(
10687 s.end.row,
10688 display_map
10689 .buffer_snapshot
10690 .line_len(MultiBufferRow(s.end.row)),
10691 );
10692 Crease::simple(start..end, display_map.fold_placeholder.clone())
10693 } else {
10694 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
10695 }
10696 })
10697 .collect::<Vec<_>>();
10698 self.fold_creases(ranges, true, cx);
10699 }
10700
10701 pub fn fold_creases<T: ToOffset + Clone>(
10702 &mut self,
10703 creases: Vec<Crease<T>>,
10704 auto_scroll: bool,
10705 cx: &mut ViewContext<Self>,
10706 ) {
10707 if creases.is_empty() {
10708 return;
10709 }
10710
10711 let mut buffers_affected = HashSet::default();
10712 let multi_buffer = self.buffer().read(cx);
10713 for crease in &creases {
10714 if let Some((_, buffer, _)) =
10715 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
10716 {
10717 buffers_affected.insert(buffer.read(cx).remote_id());
10718 };
10719 }
10720
10721 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
10722
10723 if auto_scroll {
10724 self.request_autoscroll(Autoscroll::fit(), cx);
10725 }
10726
10727 for buffer_id in buffers_affected {
10728 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10729 }
10730
10731 cx.notify();
10732
10733 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10734 // Clear diagnostics block when folding a range that contains it.
10735 let snapshot = self.snapshot(cx);
10736 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10737 drop(snapshot);
10738 self.active_diagnostics = Some(active_diagnostics);
10739 self.dismiss_diagnostics(cx);
10740 } else {
10741 self.active_diagnostics = Some(active_diagnostics);
10742 }
10743 }
10744
10745 self.scrollbar_marker_state.dirty = true;
10746 }
10747
10748 /// Removes any folds whose ranges intersect any of the given ranges.
10749 pub fn unfold_ranges<T: ToOffset + Clone>(
10750 &mut self,
10751 ranges: &[Range<T>],
10752 inclusive: bool,
10753 auto_scroll: bool,
10754 cx: &mut ViewContext<Self>,
10755 ) {
10756 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10757 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
10758 });
10759 }
10760
10761 pub fn fold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10762 if self.buffer().read(cx).is_singleton() || self.buffer_folded(buffer_id, cx) {
10763 return;
10764 }
10765 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10766 return;
10767 };
10768 let folded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10769 self.display_map
10770 .update(cx, |display_map, cx| display_map.fold_buffer(buffer_id, cx));
10771 cx.emit(EditorEvent::BufferFoldToggled {
10772 ids: folded_excerpts.iter().map(|&(id, _)| id).collect(),
10773 folded: true,
10774 });
10775 cx.notify();
10776 }
10777
10778 pub fn unfold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10779 if self.buffer().read(cx).is_singleton() || !self.buffer_folded(buffer_id, cx) {
10780 return;
10781 }
10782 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10783 return;
10784 };
10785 let unfolded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10786 self.display_map.update(cx, |display_map, cx| {
10787 display_map.unfold_buffer(buffer_id, cx);
10788 });
10789 cx.emit(EditorEvent::BufferFoldToggled {
10790 ids: unfolded_excerpts.iter().map(|&(id, _)| id).collect(),
10791 folded: false,
10792 });
10793 cx.notify();
10794 }
10795
10796 pub fn buffer_folded(&self, buffer: BufferId, cx: &AppContext) -> bool {
10797 self.display_map.read(cx).buffer_folded(buffer)
10798 }
10799
10800 /// Removes any folds with the given ranges.
10801 pub fn remove_folds_with_type<T: ToOffset + Clone>(
10802 &mut self,
10803 ranges: &[Range<T>],
10804 type_id: TypeId,
10805 auto_scroll: bool,
10806 cx: &mut ViewContext<Self>,
10807 ) {
10808 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10809 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
10810 });
10811 }
10812
10813 fn remove_folds_with<T: ToOffset + Clone>(
10814 &mut self,
10815 ranges: &[Range<T>],
10816 auto_scroll: bool,
10817 cx: &mut ViewContext<Self>,
10818 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
10819 ) {
10820 if ranges.is_empty() {
10821 return;
10822 }
10823
10824 let mut buffers_affected = HashSet::default();
10825 let multi_buffer = self.buffer().read(cx);
10826 for range in ranges {
10827 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10828 buffers_affected.insert(buffer.read(cx).remote_id());
10829 };
10830 }
10831
10832 self.display_map.update(cx, update);
10833
10834 if auto_scroll {
10835 self.request_autoscroll(Autoscroll::fit(), cx);
10836 }
10837
10838 for buffer_id in buffers_affected {
10839 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10840 }
10841
10842 cx.notify();
10843 self.scrollbar_marker_state.dirty = true;
10844 self.active_indent_guides_state.dirty = true;
10845 }
10846
10847 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
10848 self.display_map.read(cx).fold_placeholder.clone()
10849 }
10850
10851 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10852 if hovered != self.gutter_hovered {
10853 self.gutter_hovered = hovered;
10854 cx.notify();
10855 }
10856 }
10857
10858 pub fn insert_blocks(
10859 &mut self,
10860 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
10861 autoscroll: Option<Autoscroll>,
10862 cx: &mut ViewContext<Self>,
10863 ) -> Vec<CustomBlockId> {
10864 let blocks = self
10865 .display_map
10866 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
10867 if let Some(autoscroll) = autoscroll {
10868 self.request_autoscroll(autoscroll, cx);
10869 }
10870 cx.notify();
10871 blocks
10872 }
10873
10874 pub fn resize_blocks(
10875 &mut self,
10876 heights: HashMap<CustomBlockId, u32>,
10877 autoscroll: Option<Autoscroll>,
10878 cx: &mut ViewContext<Self>,
10879 ) {
10880 self.display_map
10881 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
10882 if let Some(autoscroll) = autoscroll {
10883 self.request_autoscroll(autoscroll, cx);
10884 }
10885 cx.notify();
10886 }
10887
10888 pub fn replace_blocks(
10889 &mut self,
10890 renderers: HashMap<CustomBlockId, RenderBlock>,
10891 autoscroll: Option<Autoscroll>,
10892 cx: &mut ViewContext<Self>,
10893 ) {
10894 self.display_map
10895 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
10896 if let Some(autoscroll) = autoscroll {
10897 self.request_autoscroll(autoscroll, cx);
10898 }
10899 cx.notify();
10900 }
10901
10902 pub fn remove_blocks(
10903 &mut self,
10904 block_ids: HashSet<CustomBlockId>,
10905 autoscroll: Option<Autoscroll>,
10906 cx: &mut ViewContext<Self>,
10907 ) {
10908 self.display_map.update(cx, |display_map, cx| {
10909 display_map.remove_blocks(block_ids, cx)
10910 });
10911 if let Some(autoscroll) = autoscroll {
10912 self.request_autoscroll(autoscroll, cx);
10913 }
10914 cx.notify();
10915 }
10916
10917 pub fn row_for_block(
10918 &self,
10919 block_id: CustomBlockId,
10920 cx: &mut ViewContext<Self>,
10921 ) -> Option<DisplayRow> {
10922 self.display_map
10923 .update(cx, |map, cx| map.row_for_block(block_id, cx))
10924 }
10925
10926 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
10927 self.focused_block = Some(focused_block);
10928 }
10929
10930 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
10931 self.focused_block.take()
10932 }
10933
10934 pub fn insert_creases(
10935 &mut self,
10936 creases: impl IntoIterator<Item = Crease<Anchor>>,
10937 cx: &mut ViewContext<Self>,
10938 ) -> Vec<CreaseId> {
10939 self.display_map
10940 .update(cx, |map, cx| map.insert_creases(creases, cx))
10941 }
10942
10943 pub fn remove_creases(
10944 &mut self,
10945 ids: impl IntoIterator<Item = CreaseId>,
10946 cx: &mut ViewContext<Self>,
10947 ) {
10948 self.display_map
10949 .update(cx, |map, cx| map.remove_creases(ids, cx));
10950 }
10951
10952 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
10953 self.display_map
10954 .update(cx, |map, cx| map.snapshot(cx))
10955 .longest_row()
10956 }
10957
10958 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
10959 self.display_map
10960 .update(cx, |map, cx| map.snapshot(cx))
10961 .max_point()
10962 }
10963
10964 pub fn text(&self, cx: &AppContext) -> String {
10965 self.buffer.read(cx).read(cx).text()
10966 }
10967
10968 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
10969 let text = self.text(cx);
10970 let text = text.trim();
10971
10972 if text.is_empty() {
10973 return None;
10974 }
10975
10976 Some(text.to_string())
10977 }
10978
10979 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
10980 self.transact(cx, |this, cx| {
10981 this.buffer
10982 .read(cx)
10983 .as_singleton()
10984 .expect("you can only call set_text on editors for singleton buffers")
10985 .update(cx, |buffer, cx| buffer.set_text(text, cx));
10986 });
10987 }
10988
10989 pub fn display_text(&self, cx: &mut AppContext) -> String {
10990 self.display_map
10991 .update(cx, |map, cx| map.snapshot(cx))
10992 .text()
10993 }
10994
10995 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
10996 let mut wrap_guides = smallvec::smallvec![];
10997
10998 if self.show_wrap_guides == Some(false) {
10999 return wrap_guides;
11000 }
11001
11002 let settings = self.buffer.read(cx).settings_at(0, cx);
11003 if settings.show_wrap_guides {
11004 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11005 wrap_guides.push((soft_wrap as usize, true));
11006 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11007 wrap_guides.push((soft_wrap as usize, true));
11008 }
11009 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11010 }
11011
11012 wrap_guides
11013 }
11014
11015 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11016 let settings = self.buffer.read(cx).settings_at(0, cx);
11017 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11018 match mode {
11019 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11020 SoftWrap::None
11021 }
11022 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11023 language_settings::SoftWrap::PreferredLineLength => {
11024 SoftWrap::Column(settings.preferred_line_length)
11025 }
11026 language_settings::SoftWrap::Bounded => {
11027 SoftWrap::Bounded(settings.preferred_line_length)
11028 }
11029 }
11030 }
11031
11032 pub fn set_soft_wrap_mode(
11033 &mut self,
11034 mode: language_settings::SoftWrap,
11035 cx: &mut ViewContext<Self>,
11036 ) {
11037 self.soft_wrap_mode_override = Some(mode);
11038 cx.notify();
11039 }
11040
11041 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11042 self.text_style_refinement = Some(style);
11043 }
11044
11045 /// called by the Element so we know what style we were most recently rendered with.
11046 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11047 let rem_size = cx.rem_size();
11048 self.display_map.update(cx, |map, cx| {
11049 map.set_font(
11050 style.text.font(),
11051 style.text.font_size.to_pixels(rem_size),
11052 cx,
11053 )
11054 });
11055 self.style = Some(style);
11056 }
11057
11058 pub fn style(&self) -> Option<&EditorStyle> {
11059 self.style.as_ref()
11060 }
11061
11062 // Called by the element. This method is not designed to be called outside of the editor
11063 // element's layout code because it does not notify when rewrapping is computed synchronously.
11064 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11065 self.display_map
11066 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11067 }
11068
11069 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11070 if self.soft_wrap_mode_override.is_some() {
11071 self.soft_wrap_mode_override.take();
11072 } else {
11073 let soft_wrap = match self.soft_wrap_mode(cx) {
11074 SoftWrap::GitDiff => return,
11075 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11076 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11077 language_settings::SoftWrap::None
11078 }
11079 };
11080 self.soft_wrap_mode_override = Some(soft_wrap);
11081 }
11082 cx.notify();
11083 }
11084
11085 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11086 let Some(workspace) = self.workspace() else {
11087 return;
11088 };
11089 let fs = workspace.read(cx).app_state().fs.clone();
11090 let current_show = TabBarSettings::get_global(cx).show;
11091 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11092 setting.show = Some(!current_show);
11093 });
11094 }
11095
11096 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11097 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11098 self.buffer
11099 .read(cx)
11100 .settings_at(0, cx)
11101 .indent_guides
11102 .enabled
11103 });
11104 self.show_indent_guides = Some(!currently_enabled);
11105 cx.notify();
11106 }
11107
11108 fn should_show_indent_guides(&self) -> Option<bool> {
11109 self.show_indent_guides
11110 }
11111
11112 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11113 let mut editor_settings = EditorSettings::get_global(cx).clone();
11114 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11115 EditorSettings::override_global(editor_settings, cx);
11116 }
11117
11118 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11119 self.use_relative_line_numbers
11120 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11121 }
11122
11123 pub fn toggle_relative_line_numbers(
11124 &mut self,
11125 _: &ToggleRelativeLineNumbers,
11126 cx: &mut ViewContext<Self>,
11127 ) {
11128 let is_relative = self.should_use_relative_line_numbers(cx);
11129 self.set_relative_line_number(Some(!is_relative), cx)
11130 }
11131
11132 pub fn set_relative_line_number(
11133 &mut self,
11134 is_relative: Option<bool>,
11135 cx: &mut ViewContext<Self>,
11136 ) {
11137 self.use_relative_line_numbers = is_relative;
11138 cx.notify();
11139 }
11140
11141 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11142 self.show_gutter = show_gutter;
11143 cx.notify();
11144 }
11145
11146 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11147 self.show_line_numbers = Some(show_line_numbers);
11148 cx.notify();
11149 }
11150
11151 pub fn set_show_git_diff_gutter(
11152 &mut self,
11153 show_git_diff_gutter: bool,
11154 cx: &mut ViewContext<Self>,
11155 ) {
11156 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11157 cx.notify();
11158 }
11159
11160 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11161 self.show_code_actions = Some(show_code_actions);
11162 cx.notify();
11163 }
11164
11165 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11166 self.show_runnables = Some(show_runnables);
11167 cx.notify();
11168 }
11169
11170 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11171 if self.display_map.read(cx).masked != masked {
11172 self.display_map.update(cx, |map, _| map.masked = masked);
11173 }
11174 cx.notify()
11175 }
11176
11177 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11178 self.show_wrap_guides = Some(show_wrap_guides);
11179 cx.notify();
11180 }
11181
11182 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11183 self.show_indent_guides = Some(show_indent_guides);
11184 cx.notify();
11185 }
11186
11187 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11188 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11189 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11190 if let Some(dir) = file.abs_path(cx).parent() {
11191 return Some(dir.to_owned());
11192 }
11193 }
11194
11195 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11196 return Some(project_path.path.to_path_buf());
11197 }
11198 }
11199
11200 None
11201 }
11202
11203 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11204 self.active_excerpt(cx)?
11205 .1
11206 .read(cx)
11207 .file()
11208 .and_then(|f| f.as_local())
11209 }
11210
11211 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11212 if let Some(target) = self.target_file(cx) {
11213 cx.reveal_path(&target.abs_path(cx));
11214 }
11215 }
11216
11217 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11218 if let Some(file) = self.target_file(cx) {
11219 if let Some(path) = file.abs_path(cx).to_str() {
11220 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11221 }
11222 }
11223 }
11224
11225 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11226 if let Some(file) = self.target_file(cx) {
11227 if let Some(path) = file.path().to_str() {
11228 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11229 }
11230 }
11231 }
11232
11233 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11234 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11235
11236 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11237 self.start_git_blame(true, cx);
11238 }
11239
11240 cx.notify();
11241 }
11242
11243 pub fn toggle_git_blame_inline(
11244 &mut self,
11245 _: &ToggleGitBlameInline,
11246 cx: &mut ViewContext<Self>,
11247 ) {
11248 self.toggle_git_blame_inline_internal(true, cx);
11249 cx.notify();
11250 }
11251
11252 pub fn git_blame_inline_enabled(&self) -> bool {
11253 self.git_blame_inline_enabled
11254 }
11255
11256 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11257 self.show_selection_menu = self
11258 .show_selection_menu
11259 .map(|show_selections_menu| !show_selections_menu)
11260 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11261
11262 cx.notify();
11263 }
11264
11265 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11266 self.show_selection_menu
11267 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11268 }
11269
11270 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11271 if let Some(project) = self.project.as_ref() {
11272 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11273 return;
11274 };
11275
11276 if buffer.read(cx).file().is_none() {
11277 return;
11278 }
11279
11280 let focused = self.focus_handle(cx).contains_focused(cx);
11281
11282 let project = project.clone();
11283 let blame =
11284 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11285 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11286 self.blame = Some(blame);
11287 }
11288 }
11289
11290 fn toggle_git_blame_inline_internal(
11291 &mut self,
11292 user_triggered: bool,
11293 cx: &mut ViewContext<Self>,
11294 ) {
11295 if self.git_blame_inline_enabled {
11296 self.git_blame_inline_enabled = false;
11297 self.show_git_blame_inline = false;
11298 self.show_git_blame_inline_delay_task.take();
11299 } else {
11300 self.git_blame_inline_enabled = true;
11301 self.start_git_blame_inline(user_triggered, cx);
11302 }
11303
11304 cx.notify();
11305 }
11306
11307 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11308 self.start_git_blame(user_triggered, cx);
11309
11310 if ProjectSettings::get_global(cx)
11311 .git
11312 .inline_blame_delay()
11313 .is_some()
11314 {
11315 self.start_inline_blame_timer(cx);
11316 } else {
11317 self.show_git_blame_inline = true
11318 }
11319 }
11320
11321 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11322 self.blame.as_ref()
11323 }
11324
11325 pub fn show_git_blame_gutter(&self) -> bool {
11326 self.show_git_blame_gutter
11327 }
11328
11329 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11330 self.show_git_blame_gutter && self.has_blame_entries(cx)
11331 }
11332
11333 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11334 self.show_git_blame_inline
11335 && self.focus_handle.is_focused(cx)
11336 && !self.newest_selection_head_on_empty_line(cx)
11337 && self.has_blame_entries(cx)
11338 }
11339
11340 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11341 self.blame()
11342 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11343 }
11344
11345 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11346 let cursor_anchor = self.selections.newest_anchor().head();
11347
11348 let snapshot = self.buffer.read(cx).snapshot(cx);
11349 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11350
11351 snapshot.line_len(buffer_row) == 0
11352 }
11353
11354 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11355 let buffer_and_selection = maybe!({
11356 let selection = self.selections.newest::<Point>(cx);
11357 let selection_range = selection.range();
11358
11359 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11360 (buffer, selection_range.start.row..selection_range.end.row)
11361 } else {
11362 let buffer_ranges = self
11363 .buffer()
11364 .read(cx)
11365 .range_to_buffer_ranges(selection_range, cx);
11366
11367 let (buffer, range, _) = if selection.reversed {
11368 buffer_ranges.first()
11369 } else {
11370 buffer_ranges.last()
11371 }?;
11372
11373 let snapshot = buffer.read(cx).snapshot();
11374 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11375 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11376 (buffer.clone(), selection)
11377 };
11378
11379 Some((buffer, selection))
11380 });
11381
11382 let Some((buffer, selection)) = buffer_and_selection else {
11383 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11384 };
11385
11386 let Some(project) = self.project.as_ref() else {
11387 return Task::ready(Err(anyhow!("editor does not have project")));
11388 };
11389
11390 project.update(cx, |project, cx| {
11391 project.get_permalink_to_line(&buffer, selection, cx)
11392 })
11393 }
11394
11395 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11396 let permalink_task = self.get_permalink_to_line(cx);
11397 let workspace = self.workspace();
11398
11399 cx.spawn(|_, mut cx| async move {
11400 match permalink_task.await {
11401 Ok(permalink) => {
11402 cx.update(|cx| {
11403 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11404 })
11405 .ok();
11406 }
11407 Err(err) => {
11408 let message = format!("Failed to copy permalink: {err}");
11409
11410 Err::<(), anyhow::Error>(err).log_err();
11411
11412 if let Some(workspace) = workspace {
11413 workspace
11414 .update(&mut cx, |workspace, cx| {
11415 struct CopyPermalinkToLine;
11416
11417 workspace.show_toast(
11418 Toast::new(
11419 NotificationId::unique::<CopyPermalinkToLine>(),
11420 message,
11421 ),
11422 cx,
11423 )
11424 })
11425 .ok();
11426 }
11427 }
11428 }
11429 })
11430 .detach();
11431 }
11432
11433 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11434 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11435 if let Some(file) = self.target_file(cx) {
11436 if let Some(path) = file.path().to_str() {
11437 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11438 }
11439 }
11440 }
11441
11442 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11443 let permalink_task = self.get_permalink_to_line(cx);
11444 let workspace = self.workspace();
11445
11446 cx.spawn(|_, mut cx| async move {
11447 match permalink_task.await {
11448 Ok(permalink) => {
11449 cx.update(|cx| {
11450 cx.open_url(permalink.as_ref());
11451 })
11452 .ok();
11453 }
11454 Err(err) => {
11455 let message = format!("Failed to open permalink: {err}");
11456
11457 Err::<(), anyhow::Error>(err).log_err();
11458
11459 if let Some(workspace) = workspace {
11460 workspace
11461 .update(&mut cx, |workspace, cx| {
11462 struct OpenPermalinkToLine;
11463
11464 workspace.show_toast(
11465 Toast::new(
11466 NotificationId::unique::<OpenPermalinkToLine>(),
11467 message,
11468 ),
11469 cx,
11470 )
11471 })
11472 .ok();
11473 }
11474 }
11475 }
11476 })
11477 .detach();
11478 }
11479
11480 pub fn insert_uuid_v4(&mut self, _: &InsertUuidV4, cx: &mut ViewContext<Self>) {
11481 self.insert_uuid(UuidVersion::V4, cx);
11482 }
11483
11484 pub fn insert_uuid_v7(&mut self, _: &InsertUuidV7, cx: &mut ViewContext<Self>) {
11485 self.insert_uuid(UuidVersion::V7, cx);
11486 }
11487
11488 fn insert_uuid(&mut self, version: UuidVersion, cx: &mut ViewContext<Self>) {
11489 self.transact(cx, |this, cx| {
11490 let edits = this
11491 .selections
11492 .all::<Point>(cx)
11493 .into_iter()
11494 .map(|selection| {
11495 let uuid = match version {
11496 UuidVersion::V4 => uuid::Uuid::new_v4(),
11497 UuidVersion::V7 => uuid::Uuid::now_v7(),
11498 };
11499
11500 (selection.range(), uuid.to_string())
11501 });
11502 this.edit(edits, cx);
11503 this.refresh_inline_completion(true, false, cx);
11504 });
11505 }
11506
11507 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11508 /// last highlight added will be used.
11509 ///
11510 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11511 pub fn highlight_rows<T: 'static>(
11512 &mut self,
11513 range: Range<Anchor>,
11514 color: Hsla,
11515 should_autoscroll: bool,
11516 cx: &mut ViewContext<Self>,
11517 ) {
11518 let snapshot = self.buffer().read(cx).snapshot(cx);
11519 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11520 let ix = row_highlights.binary_search_by(|highlight| {
11521 Ordering::Equal
11522 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11523 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11524 });
11525
11526 if let Err(mut ix) = ix {
11527 let index = post_inc(&mut self.highlight_order);
11528
11529 // If this range intersects with the preceding highlight, then merge it with
11530 // the preceding highlight. Otherwise insert a new highlight.
11531 let mut merged = false;
11532 if ix > 0 {
11533 let prev_highlight = &mut row_highlights[ix - 1];
11534 if prev_highlight
11535 .range
11536 .end
11537 .cmp(&range.start, &snapshot)
11538 .is_ge()
11539 {
11540 ix -= 1;
11541 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11542 prev_highlight.range.end = range.end;
11543 }
11544 merged = true;
11545 prev_highlight.index = index;
11546 prev_highlight.color = color;
11547 prev_highlight.should_autoscroll = should_autoscroll;
11548 }
11549 }
11550
11551 if !merged {
11552 row_highlights.insert(
11553 ix,
11554 RowHighlight {
11555 range: range.clone(),
11556 index,
11557 color,
11558 should_autoscroll,
11559 },
11560 );
11561 }
11562
11563 // If any of the following highlights intersect with this one, merge them.
11564 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11565 let highlight = &row_highlights[ix];
11566 if next_highlight
11567 .range
11568 .start
11569 .cmp(&highlight.range.end, &snapshot)
11570 .is_le()
11571 {
11572 if next_highlight
11573 .range
11574 .end
11575 .cmp(&highlight.range.end, &snapshot)
11576 .is_gt()
11577 {
11578 row_highlights[ix].range.end = next_highlight.range.end;
11579 }
11580 row_highlights.remove(ix + 1);
11581 } else {
11582 break;
11583 }
11584 }
11585 }
11586 }
11587
11588 /// Remove any highlighted row ranges of the given type that intersect the
11589 /// given ranges.
11590 pub fn remove_highlighted_rows<T: 'static>(
11591 &mut self,
11592 ranges_to_remove: Vec<Range<Anchor>>,
11593 cx: &mut ViewContext<Self>,
11594 ) {
11595 let snapshot = self.buffer().read(cx).snapshot(cx);
11596 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11597 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11598 row_highlights.retain(|highlight| {
11599 while let Some(range_to_remove) = ranges_to_remove.peek() {
11600 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11601 Ordering::Less | Ordering::Equal => {
11602 ranges_to_remove.next();
11603 }
11604 Ordering::Greater => {
11605 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11606 Ordering::Less | Ordering::Equal => {
11607 return false;
11608 }
11609 Ordering::Greater => break,
11610 }
11611 }
11612 }
11613 }
11614
11615 true
11616 })
11617 }
11618
11619 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11620 pub fn clear_row_highlights<T: 'static>(&mut self) {
11621 self.highlighted_rows.remove(&TypeId::of::<T>());
11622 }
11623
11624 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11625 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11626 self.highlighted_rows
11627 .get(&TypeId::of::<T>())
11628 .map_or(&[] as &[_], |vec| vec.as_slice())
11629 .iter()
11630 .map(|highlight| (highlight.range.clone(), highlight.color))
11631 }
11632
11633 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11634 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11635 /// Allows to ignore certain kinds of highlights.
11636 pub fn highlighted_display_rows(
11637 &mut self,
11638 cx: &mut WindowContext,
11639 ) -> BTreeMap<DisplayRow, Hsla> {
11640 let snapshot = self.snapshot(cx);
11641 let mut used_highlight_orders = HashMap::default();
11642 self.highlighted_rows
11643 .iter()
11644 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11645 .fold(
11646 BTreeMap::<DisplayRow, Hsla>::new(),
11647 |mut unique_rows, highlight| {
11648 let start = highlight.range.start.to_display_point(&snapshot);
11649 let end = highlight.range.end.to_display_point(&snapshot);
11650 let start_row = start.row().0;
11651 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11652 && end.column() == 0
11653 {
11654 end.row().0.saturating_sub(1)
11655 } else {
11656 end.row().0
11657 };
11658 for row in start_row..=end_row {
11659 let used_index =
11660 used_highlight_orders.entry(row).or_insert(highlight.index);
11661 if highlight.index >= *used_index {
11662 *used_index = highlight.index;
11663 unique_rows.insert(DisplayRow(row), highlight.color);
11664 }
11665 }
11666 unique_rows
11667 },
11668 )
11669 }
11670
11671 pub fn highlighted_display_row_for_autoscroll(
11672 &self,
11673 snapshot: &DisplaySnapshot,
11674 ) -> Option<DisplayRow> {
11675 self.highlighted_rows
11676 .values()
11677 .flat_map(|highlighted_rows| highlighted_rows.iter())
11678 .filter_map(|highlight| {
11679 if highlight.should_autoscroll {
11680 Some(highlight.range.start.to_display_point(snapshot).row())
11681 } else {
11682 None
11683 }
11684 })
11685 .min()
11686 }
11687
11688 pub fn set_search_within_ranges(
11689 &mut self,
11690 ranges: &[Range<Anchor>],
11691 cx: &mut ViewContext<Self>,
11692 ) {
11693 self.highlight_background::<SearchWithinRange>(
11694 ranges,
11695 |colors| colors.editor_document_highlight_read_background,
11696 cx,
11697 )
11698 }
11699
11700 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11701 self.breadcrumb_header = Some(new_header);
11702 }
11703
11704 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11705 self.clear_background_highlights::<SearchWithinRange>(cx);
11706 }
11707
11708 pub fn highlight_background<T: 'static>(
11709 &mut self,
11710 ranges: &[Range<Anchor>],
11711 color_fetcher: fn(&ThemeColors) -> Hsla,
11712 cx: &mut ViewContext<Self>,
11713 ) {
11714 self.background_highlights
11715 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11716 self.scrollbar_marker_state.dirty = true;
11717 cx.notify();
11718 }
11719
11720 pub fn clear_background_highlights<T: 'static>(
11721 &mut self,
11722 cx: &mut ViewContext<Self>,
11723 ) -> Option<BackgroundHighlight> {
11724 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11725 if !text_highlights.1.is_empty() {
11726 self.scrollbar_marker_state.dirty = true;
11727 cx.notify();
11728 }
11729 Some(text_highlights)
11730 }
11731
11732 pub fn highlight_gutter<T: 'static>(
11733 &mut self,
11734 ranges: &[Range<Anchor>],
11735 color_fetcher: fn(&AppContext) -> Hsla,
11736 cx: &mut ViewContext<Self>,
11737 ) {
11738 self.gutter_highlights
11739 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11740 cx.notify();
11741 }
11742
11743 pub fn clear_gutter_highlights<T: 'static>(
11744 &mut self,
11745 cx: &mut ViewContext<Self>,
11746 ) -> Option<GutterHighlight> {
11747 cx.notify();
11748 self.gutter_highlights.remove(&TypeId::of::<T>())
11749 }
11750
11751 #[cfg(feature = "test-support")]
11752 pub fn all_text_background_highlights(
11753 &mut self,
11754 cx: &mut ViewContext<Self>,
11755 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11756 let snapshot = self.snapshot(cx);
11757 let buffer = &snapshot.buffer_snapshot;
11758 let start = buffer.anchor_before(0);
11759 let end = buffer.anchor_after(buffer.len());
11760 let theme = cx.theme().colors();
11761 self.background_highlights_in_range(start..end, &snapshot, theme)
11762 }
11763
11764 #[cfg(feature = "test-support")]
11765 pub fn search_background_highlights(
11766 &mut self,
11767 cx: &mut ViewContext<Self>,
11768 ) -> Vec<Range<Point>> {
11769 let snapshot = self.buffer().read(cx).snapshot(cx);
11770
11771 let highlights = self
11772 .background_highlights
11773 .get(&TypeId::of::<items::BufferSearchHighlights>());
11774
11775 if let Some((_color, ranges)) = highlights {
11776 ranges
11777 .iter()
11778 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11779 .collect_vec()
11780 } else {
11781 vec![]
11782 }
11783 }
11784
11785 fn document_highlights_for_position<'a>(
11786 &'a self,
11787 position: Anchor,
11788 buffer: &'a MultiBufferSnapshot,
11789 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11790 let read_highlights = self
11791 .background_highlights
11792 .get(&TypeId::of::<DocumentHighlightRead>())
11793 .map(|h| &h.1);
11794 let write_highlights = self
11795 .background_highlights
11796 .get(&TypeId::of::<DocumentHighlightWrite>())
11797 .map(|h| &h.1);
11798 let left_position = position.bias_left(buffer);
11799 let right_position = position.bias_right(buffer);
11800 read_highlights
11801 .into_iter()
11802 .chain(write_highlights)
11803 .flat_map(move |ranges| {
11804 let start_ix = match ranges.binary_search_by(|probe| {
11805 let cmp = probe.end.cmp(&left_position, buffer);
11806 if cmp.is_ge() {
11807 Ordering::Greater
11808 } else {
11809 Ordering::Less
11810 }
11811 }) {
11812 Ok(i) | Err(i) => i,
11813 };
11814
11815 ranges[start_ix..]
11816 .iter()
11817 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11818 })
11819 }
11820
11821 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11822 self.background_highlights
11823 .get(&TypeId::of::<T>())
11824 .map_or(false, |(_, highlights)| !highlights.is_empty())
11825 }
11826
11827 pub fn background_highlights_in_range(
11828 &self,
11829 search_range: Range<Anchor>,
11830 display_snapshot: &DisplaySnapshot,
11831 theme: &ThemeColors,
11832 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11833 let mut results = Vec::new();
11834 for (color_fetcher, ranges) in self.background_highlights.values() {
11835 let color = color_fetcher(theme);
11836 let start_ix = match ranges.binary_search_by(|probe| {
11837 let cmp = probe
11838 .end
11839 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11840 if cmp.is_gt() {
11841 Ordering::Greater
11842 } else {
11843 Ordering::Less
11844 }
11845 }) {
11846 Ok(i) | Err(i) => i,
11847 };
11848 for range in &ranges[start_ix..] {
11849 if range
11850 .start
11851 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11852 .is_ge()
11853 {
11854 break;
11855 }
11856
11857 let start = range.start.to_display_point(display_snapshot);
11858 let end = range.end.to_display_point(display_snapshot);
11859 results.push((start..end, color))
11860 }
11861 }
11862 results
11863 }
11864
11865 pub fn background_highlight_row_ranges<T: 'static>(
11866 &self,
11867 search_range: Range<Anchor>,
11868 display_snapshot: &DisplaySnapshot,
11869 count: usize,
11870 ) -> Vec<RangeInclusive<DisplayPoint>> {
11871 let mut results = Vec::new();
11872 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
11873 return vec![];
11874 };
11875
11876 let start_ix = match ranges.binary_search_by(|probe| {
11877 let cmp = probe
11878 .end
11879 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11880 if cmp.is_gt() {
11881 Ordering::Greater
11882 } else {
11883 Ordering::Less
11884 }
11885 }) {
11886 Ok(i) | Err(i) => i,
11887 };
11888 let mut push_region = |start: Option<Point>, end: Option<Point>| {
11889 if let (Some(start_display), Some(end_display)) = (start, end) {
11890 results.push(
11891 start_display.to_display_point(display_snapshot)
11892 ..=end_display.to_display_point(display_snapshot),
11893 );
11894 }
11895 };
11896 let mut start_row: Option<Point> = None;
11897 let mut end_row: Option<Point> = None;
11898 if ranges.len() > count {
11899 return Vec::new();
11900 }
11901 for range in &ranges[start_ix..] {
11902 if range
11903 .start
11904 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11905 .is_ge()
11906 {
11907 break;
11908 }
11909 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
11910 if let Some(current_row) = &end_row {
11911 if end.row == current_row.row {
11912 continue;
11913 }
11914 }
11915 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
11916 if start_row.is_none() {
11917 assert_eq!(end_row, None);
11918 start_row = Some(start);
11919 end_row = Some(end);
11920 continue;
11921 }
11922 if let Some(current_end) = end_row.as_mut() {
11923 if start.row > current_end.row + 1 {
11924 push_region(start_row, end_row);
11925 start_row = Some(start);
11926 end_row = Some(end);
11927 } else {
11928 // Merge two hunks.
11929 *current_end = end;
11930 }
11931 } else {
11932 unreachable!();
11933 }
11934 }
11935 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
11936 push_region(start_row, end_row);
11937 results
11938 }
11939
11940 pub fn gutter_highlights_in_range(
11941 &self,
11942 search_range: Range<Anchor>,
11943 display_snapshot: &DisplaySnapshot,
11944 cx: &AppContext,
11945 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11946 let mut results = Vec::new();
11947 for (color_fetcher, ranges) in self.gutter_highlights.values() {
11948 let color = color_fetcher(cx);
11949 let start_ix = match ranges.binary_search_by(|probe| {
11950 let cmp = probe
11951 .end
11952 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11953 if cmp.is_gt() {
11954 Ordering::Greater
11955 } else {
11956 Ordering::Less
11957 }
11958 }) {
11959 Ok(i) | Err(i) => i,
11960 };
11961 for range in &ranges[start_ix..] {
11962 if range
11963 .start
11964 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11965 .is_ge()
11966 {
11967 break;
11968 }
11969
11970 let start = range.start.to_display_point(display_snapshot);
11971 let end = range.end.to_display_point(display_snapshot);
11972 results.push((start..end, color))
11973 }
11974 }
11975 results
11976 }
11977
11978 /// Get the text ranges corresponding to the redaction query
11979 pub fn redacted_ranges(
11980 &self,
11981 search_range: Range<Anchor>,
11982 display_snapshot: &DisplaySnapshot,
11983 cx: &WindowContext,
11984 ) -> Vec<Range<DisplayPoint>> {
11985 display_snapshot
11986 .buffer_snapshot
11987 .redacted_ranges(search_range, |file| {
11988 if let Some(file) = file {
11989 file.is_private()
11990 && EditorSettings::get(
11991 Some(SettingsLocation {
11992 worktree_id: file.worktree_id(cx),
11993 path: file.path().as_ref(),
11994 }),
11995 cx,
11996 )
11997 .redact_private_values
11998 } else {
11999 false
12000 }
12001 })
12002 .map(|range| {
12003 range.start.to_display_point(display_snapshot)
12004 ..range.end.to_display_point(display_snapshot)
12005 })
12006 .collect()
12007 }
12008
12009 pub fn highlight_text<T: 'static>(
12010 &mut self,
12011 ranges: Vec<Range<Anchor>>,
12012 style: HighlightStyle,
12013 cx: &mut ViewContext<Self>,
12014 ) {
12015 self.display_map.update(cx, |map, _| {
12016 map.highlight_text(TypeId::of::<T>(), ranges, style)
12017 });
12018 cx.notify();
12019 }
12020
12021 pub(crate) fn highlight_inlays<T: 'static>(
12022 &mut self,
12023 highlights: Vec<InlayHighlight>,
12024 style: HighlightStyle,
12025 cx: &mut ViewContext<Self>,
12026 ) {
12027 self.display_map.update(cx, |map, _| {
12028 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12029 });
12030 cx.notify();
12031 }
12032
12033 pub fn text_highlights<'a, T: 'static>(
12034 &'a self,
12035 cx: &'a AppContext,
12036 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12037 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12038 }
12039
12040 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12041 let cleared = self
12042 .display_map
12043 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12044 if cleared {
12045 cx.notify();
12046 }
12047 }
12048
12049 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12050 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12051 && self.focus_handle.is_focused(cx)
12052 }
12053
12054 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12055 self.show_cursor_when_unfocused = is_enabled;
12056 cx.notify();
12057 }
12058
12059 pub fn lsp_store(&self, cx: &AppContext) -> Option<Model<LspStore>> {
12060 self.project
12061 .as_ref()
12062 .map(|project| project.read(cx).lsp_store())
12063 }
12064
12065 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12066 cx.notify();
12067 }
12068
12069 fn on_buffer_event(
12070 &mut self,
12071 multibuffer: Model<MultiBuffer>,
12072 event: &multi_buffer::Event,
12073 cx: &mut ViewContext<Self>,
12074 ) {
12075 match event {
12076 multi_buffer::Event::Edited {
12077 singleton_buffer_edited,
12078 edited_buffer: buffer_edited,
12079 } => {
12080 self.scrollbar_marker_state.dirty = true;
12081 self.active_indent_guides_state.dirty = true;
12082 self.refresh_active_diagnostics(cx);
12083 self.refresh_code_actions(cx);
12084 if self.has_active_inline_completion() {
12085 self.update_visible_inline_completion(cx);
12086 }
12087 if let Some(buffer) = buffer_edited {
12088 let buffer_id = buffer.read(cx).remote_id();
12089 if !self.registered_buffers.contains_key(&buffer_id) {
12090 if let Some(lsp_store) = self.lsp_store(cx) {
12091 lsp_store.update(cx, |lsp_store, cx| {
12092 self.registered_buffers.insert(
12093 buffer_id,
12094 lsp_store.register_buffer_with_language_servers(&buffer, cx),
12095 );
12096 })
12097 }
12098 }
12099 }
12100 cx.emit(EditorEvent::BufferEdited);
12101 cx.emit(SearchEvent::MatchesInvalidated);
12102 if *singleton_buffer_edited {
12103 if let Some(project) = &self.project {
12104 let project = project.read(cx);
12105 #[allow(clippy::mutable_key_type)]
12106 let languages_affected = multibuffer
12107 .read(cx)
12108 .all_buffers()
12109 .into_iter()
12110 .filter_map(|buffer| {
12111 let buffer = buffer.read(cx);
12112 let language = buffer.language()?;
12113 if project.is_local()
12114 && project
12115 .language_servers_for_local_buffer(buffer, cx)
12116 .count()
12117 == 0
12118 {
12119 None
12120 } else {
12121 Some(language)
12122 }
12123 })
12124 .cloned()
12125 .collect::<HashSet<_>>();
12126 if !languages_affected.is_empty() {
12127 self.refresh_inlay_hints(
12128 InlayHintRefreshReason::BufferEdited(languages_affected),
12129 cx,
12130 );
12131 }
12132 }
12133 }
12134
12135 let Some(project) = &self.project else { return };
12136 let (telemetry, is_via_ssh) = {
12137 let project = project.read(cx);
12138 let telemetry = project.client().telemetry().clone();
12139 let is_via_ssh = project.is_via_ssh();
12140 (telemetry, is_via_ssh)
12141 };
12142 refresh_linked_ranges(self, cx);
12143 telemetry.log_edit_event("editor", is_via_ssh);
12144 }
12145 multi_buffer::Event::ExcerptsAdded {
12146 buffer,
12147 predecessor,
12148 excerpts,
12149 } => {
12150 self.tasks_update_task = Some(self.refresh_runnables(cx));
12151 let buffer_id = buffer.read(cx).remote_id();
12152 if !self.diff_map.diff_bases.contains_key(&buffer_id) {
12153 if let Some(project) = &self.project {
12154 get_unstaged_changes_for_buffers(project, [buffer.clone()], cx);
12155 }
12156 }
12157 cx.emit(EditorEvent::ExcerptsAdded {
12158 buffer: buffer.clone(),
12159 predecessor: *predecessor,
12160 excerpts: excerpts.clone(),
12161 });
12162 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12163 }
12164 multi_buffer::Event::ExcerptsRemoved { ids } => {
12165 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12166 let buffer = self.buffer.read(cx);
12167 self.registered_buffers
12168 .retain(|buffer_id, _| buffer.buffer(*buffer_id).is_some());
12169 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12170 }
12171 multi_buffer::Event::ExcerptsEdited { ids } => {
12172 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12173 }
12174 multi_buffer::Event::ExcerptsExpanded { ids } => {
12175 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12176 }
12177 multi_buffer::Event::Reparsed(buffer_id) => {
12178 self.tasks_update_task = Some(self.refresh_runnables(cx));
12179
12180 cx.emit(EditorEvent::Reparsed(*buffer_id));
12181 }
12182 multi_buffer::Event::LanguageChanged(buffer_id) => {
12183 linked_editing_ranges::refresh_linked_ranges(self, cx);
12184 cx.emit(EditorEvent::Reparsed(*buffer_id));
12185 cx.notify();
12186 }
12187 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12188 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12189 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12190 cx.emit(EditorEvent::TitleChanged)
12191 }
12192 // multi_buffer::Event::DiffBaseChanged => {
12193 // self.scrollbar_marker_state.dirty = true;
12194 // cx.emit(EditorEvent::DiffBaseChanged);
12195 // cx.notify();
12196 // }
12197 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12198 multi_buffer::Event::DiagnosticsUpdated => {
12199 self.refresh_active_diagnostics(cx);
12200 self.scrollbar_marker_state.dirty = true;
12201 cx.notify();
12202 }
12203 _ => {}
12204 };
12205 }
12206
12207 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12208 cx.notify();
12209 }
12210
12211 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12212 self.tasks_update_task = Some(self.refresh_runnables(cx));
12213 self.refresh_inline_completion(true, false, cx);
12214 self.refresh_inlay_hints(
12215 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12216 self.selections.newest_anchor().head(),
12217 &self.buffer.read(cx).snapshot(cx),
12218 cx,
12219 )),
12220 cx,
12221 );
12222
12223 let old_cursor_shape = self.cursor_shape;
12224
12225 {
12226 let editor_settings = EditorSettings::get_global(cx);
12227 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12228 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12229 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12230 }
12231
12232 if old_cursor_shape != self.cursor_shape {
12233 cx.emit(EditorEvent::CursorShapeChanged);
12234 }
12235
12236 let project_settings = ProjectSettings::get_global(cx);
12237 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12238
12239 if self.mode == EditorMode::Full {
12240 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12241 if self.git_blame_inline_enabled != inline_blame_enabled {
12242 self.toggle_git_blame_inline_internal(false, cx);
12243 }
12244 }
12245
12246 cx.notify();
12247 }
12248
12249 pub fn set_searchable(&mut self, searchable: bool) {
12250 self.searchable = searchable;
12251 }
12252
12253 pub fn searchable(&self) -> bool {
12254 self.searchable
12255 }
12256
12257 fn open_proposed_changes_editor(
12258 &mut self,
12259 _: &OpenProposedChangesEditor,
12260 cx: &mut ViewContext<Self>,
12261 ) {
12262 let Some(workspace) = self.workspace() else {
12263 cx.propagate();
12264 return;
12265 };
12266
12267 let selections = self.selections.all::<usize>(cx);
12268 let buffer = self.buffer.read(cx);
12269 let mut new_selections_by_buffer = HashMap::default();
12270 for selection in selections {
12271 for (buffer, range, _) in
12272 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12273 {
12274 let mut range = range.to_point(buffer.read(cx));
12275 range.start.column = 0;
12276 range.end.column = buffer.read(cx).line_len(range.end.row);
12277 new_selections_by_buffer
12278 .entry(buffer)
12279 .or_insert(Vec::new())
12280 .push(range)
12281 }
12282 }
12283
12284 let proposed_changes_buffers = new_selections_by_buffer
12285 .into_iter()
12286 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12287 .collect::<Vec<_>>();
12288 let proposed_changes_editor = cx.new_view(|cx| {
12289 ProposedChangesEditor::new(
12290 "Proposed changes",
12291 proposed_changes_buffers,
12292 self.project.clone(),
12293 cx,
12294 )
12295 });
12296
12297 cx.window_context().defer(move |cx| {
12298 workspace.update(cx, |workspace, cx| {
12299 workspace.active_pane().update(cx, |pane, cx| {
12300 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12301 });
12302 });
12303 });
12304 }
12305
12306 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12307 self.open_excerpts_common(None, true, cx)
12308 }
12309
12310 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12311 self.open_excerpts_common(None, false, cx)
12312 }
12313
12314 fn open_excerpts_common(
12315 &mut self,
12316 jump_data: Option<JumpData>,
12317 split: bool,
12318 cx: &mut ViewContext<Self>,
12319 ) {
12320 let Some(workspace) = self.workspace() else {
12321 cx.propagate();
12322 return;
12323 };
12324
12325 if self.buffer.read(cx).is_singleton() {
12326 cx.propagate();
12327 return;
12328 }
12329
12330 let mut new_selections_by_buffer = HashMap::default();
12331 match &jump_data {
12332 Some(jump_data) => {
12333 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12334 if let Some(buffer) = multi_buffer_snapshot
12335 .buffer_id_for_excerpt(jump_data.excerpt_id)
12336 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12337 {
12338 let buffer_snapshot = buffer.read(cx).snapshot();
12339 let jump_to_point = if buffer_snapshot.can_resolve(&jump_data.anchor) {
12340 language::ToPoint::to_point(&jump_data.anchor, &buffer_snapshot)
12341 } else {
12342 buffer_snapshot.clip_point(jump_data.position, Bias::Left)
12343 };
12344 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12345 new_selections_by_buffer.insert(
12346 buffer,
12347 (
12348 vec![jump_to_offset..jump_to_offset],
12349 Some(jump_data.line_offset_from_top),
12350 ),
12351 );
12352 }
12353 }
12354 None => {
12355 let selections = self.selections.all::<usize>(cx);
12356 let buffer = self.buffer.read(cx);
12357 for selection in selections {
12358 for (mut buffer_handle, mut range, _) in
12359 buffer.range_to_buffer_ranges(selection.range(), cx)
12360 {
12361 // When editing branch buffers, jump to the corresponding location
12362 // in their base buffer.
12363 let buffer = buffer_handle.read(cx);
12364 if let Some(base_buffer) = buffer.base_buffer() {
12365 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12366 buffer_handle = base_buffer;
12367 }
12368
12369 if selection.reversed {
12370 mem::swap(&mut range.start, &mut range.end);
12371 }
12372 new_selections_by_buffer
12373 .entry(buffer_handle)
12374 .or_insert((Vec::new(), None))
12375 .0
12376 .push(range)
12377 }
12378 }
12379 }
12380 }
12381
12382 if new_selections_by_buffer.is_empty() {
12383 return;
12384 }
12385
12386 // We defer the pane interaction because we ourselves are a workspace item
12387 // and activating a new item causes the pane to call a method on us reentrantly,
12388 // which panics if we're on the stack.
12389 cx.window_context().defer(move |cx| {
12390 workspace.update(cx, |workspace, cx| {
12391 let pane = if split {
12392 workspace.adjacent_pane(cx)
12393 } else {
12394 workspace.active_pane().clone()
12395 };
12396
12397 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12398 let editor = buffer
12399 .read(cx)
12400 .file()
12401 .is_none()
12402 .then(|| {
12403 // Handle file-less buffers separately: those are not really the project items, so won't have a paroject path or entity id,
12404 // so `workspace.open_project_item` will never find them, always opening a new editor.
12405 // Instead, we try to activate the existing editor in the pane first.
12406 let (editor, pane_item_index) =
12407 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12408 let editor = item.downcast::<Editor>()?;
12409 let singleton_buffer =
12410 editor.read(cx).buffer().read(cx).as_singleton()?;
12411 if singleton_buffer == buffer {
12412 Some((editor, i))
12413 } else {
12414 None
12415 }
12416 })?;
12417 pane.update(cx, |pane, cx| {
12418 pane.activate_item(pane_item_index, true, true, cx)
12419 });
12420 Some(editor)
12421 })
12422 .flatten()
12423 .unwrap_or_else(|| {
12424 workspace.open_project_item::<Self>(
12425 pane.clone(),
12426 buffer,
12427 true,
12428 true,
12429 cx,
12430 )
12431 });
12432
12433 editor.update(cx, |editor, cx| {
12434 let autoscroll = match scroll_offset {
12435 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12436 None => Autoscroll::newest(),
12437 };
12438 let nav_history = editor.nav_history.take();
12439 editor.change_selections(Some(autoscroll), cx, |s| {
12440 s.select_ranges(ranges);
12441 });
12442 editor.nav_history = nav_history;
12443 });
12444 }
12445 })
12446 });
12447 }
12448
12449 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12450 let snapshot = self.buffer.read(cx).read(cx);
12451 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12452 Some(
12453 ranges
12454 .iter()
12455 .map(move |range| {
12456 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12457 })
12458 .collect(),
12459 )
12460 }
12461
12462 fn selection_replacement_ranges(
12463 &self,
12464 range: Range<OffsetUtf16>,
12465 cx: &mut AppContext,
12466 ) -> Vec<Range<OffsetUtf16>> {
12467 let selections = self.selections.all::<OffsetUtf16>(cx);
12468 let newest_selection = selections
12469 .iter()
12470 .max_by_key(|selection| selection.id)
12471 .unwrap();
12472 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12473 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12474 let snapshot = self.buffer.read(cx).read(cx);
12475 selections
12476 .into_iter()
12477 .map(|mut selection| {
12478 selection.start.0 =
12479 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12480 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12481 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12482 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12483 })
12484 .collect()
12485 }
12486
12487 fn report_editor_event(
12488 &self,
12489 operation: &'static str,
12490 file_extension: Option<String>,
12491 cx: &AppContext,
12492 ) {
12493 if cfg!(any(test, feature = "test-support")) {
12494 return;
12495 }
12496
12497 let Some(project) = &self.project else { return };
12498
12499 // If None, we are in a file without an extension
12500 let file = self
12501 .buffer
12502 .read(cx)
12503 .as_singleton()
12504 .and_then(|b| b.read(cx).file());
12505 let file_extension = file_extension.or(file
12506 .as_ref()
12507 .and_then(|file| Path::new(file.file_name(cx)).extension())
12508 .and_then(|e| e.to_str())
12509 .map(|a| a.to_string()));
12510
12511 let vim_mode = cx
12512 .global::<SettingsStore>()
12513 .raw_user_settings()
12514 .get("vim_mode")
12515 == Some(&serde_json::Value::Bool(true));
12516
12517 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12518 == language::language_settings::InlineCompletionProvider::Copilot;
12519 let copilot_enabled_for_language = self
12520 .buffer
12521 .read(cx)
12522 .settings_at(0, cx)
12523 .show_inline_completions;
12524
12525 let project = project.read(cx);
12526 let telemetry = project.client().telemetry().clone();
12527 telemetry.report_editor_event(
12528 file_extension,
12529 vim_mode,
12530 operation,
12531 copilot_enabled,
12532 copilot_enabled_for_language,
12533 project.is_via_ssh(),
12534 )
12535 }
12536
12537 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12538 /// with each line being an array of {text, highlight} objects.
12539 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12540 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12541 return;
12542 };
12543
12544 #[derive(Serialize)]
12545 struct Chunk<'a> {
12546 text: String,
12547 highlight: Option<&'a str>,
12548 }
12549
12550 let snapshot = buffer.read(cx).snapshot();
12551 let range = self
12552 .selected_text_range(false, cx)
12553 .and_then(|selection| {
12554 if selection.range.is_empty() {
12555 None
12556 } else {
12557 Some(selection.range)
12558 }
12559 })
12560 .unwrap_or_else(|| 0..snapshot.len());
12561
12562 let chunks = snapshot.chunks(range, true);
12563 let mut lines = Vec::new();
12564 let mut line: VecDeque<Chunk> = VecDeque::new();
12565
12566 let Some(style) = self.style.as_ref() else {
12567 return;
12568 };
12569
12570 for chunk in chunks {
12571 let highlight = chunk
12572 .syntax_highlight_id
12573 .and_then(|id| id.name(&style.syntax));
12574 let mut chunk_lines = chunk.text.split('\n').peekable();
12575 while let Some(text) = chunk_lines.next() {
12576 let mut merged_with_last_token = false;
12577 if let Some(last_token) = line.back_mut() {
12578 if last_token.highlight == highlight {
12579 last_token.text.push_str(text);
12580 merged_with_last_token = true;
12581 }
12582 }
12583
12584 if !merged_with_last_token {
12585 line.push_back(Chunk {
12586 text: text.into(),
12587 highlight,
12588 });
12589 }
12590
12591 if chunk_lines.peek().is_some() {
12592 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12593 line.pop_front();
12594 }
12595 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12596 line.pop_back();
12597 }
12598
12599 lines.push(mem::take(&mut line));
12600 }
12601 }
12602 }
12603
12604 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12605 return;
12606 };
12607 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12608 }
12609
12610 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
12611 self.request_autoscroll(Autoscroll::newest(), cx);
12612 let position = self.selections.newest_display(cx).start;
12613 mouse_context_menu::deploy_context_menu(self, None, position, cx);
12614 }
12615
12616 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12617 &self.inlay_hint_cache
12618 }
12619
12620 pub fn replay_insert_event(
12621 &mut self,
12622 text: &str,
12623 relative_utf16_range: Option<Range<isize>>,
12624 cx: &mut ViewContext<Self>,
12625 ) {
12626 if !self.input_enabled {
12627 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12628 return;
12629 }
12630 if let Some(relative_utf16_range) = relative_utf16_range {
12631 let selections = self.selections.all::<OffsetUtf16>(cx);
12632 self.change_selections(None, cx, |s| {
12633 let new_ranges = selections.into_iter().map(|range| {
12634 let start = OffsetUtf16(
12635 range
12636 .head()
12637 .0
12638 .saturating_add_signed(relative_utf16_range.start),
12639 );
12640 let end = OffsetUtf16(
12641 range
12642 .head()
12643 .0
12644 .saturating_add_signed(relative_utf16_range.end),
12645 );
12646 start..end
12647 });
12648 s.select_ranges(new_ranges);
12649 });
12650 }
12651
12652 self.handle_input(text, cx);
12653 }
12654
12655 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12656 let Some(provider) = self.semantics_provider.as_ref() else {
12657 return false;
12658 };
12659
12660 let mut supports = false;
12661 self.buffer().read(cx).for_each_buffer(|buffer| {
12662 supports |= provider.supports_inlay_hints(buffer, cx);
12663 });
12664 supports
12665 }
12666
12667 pub fn focus(&self, cx: &mut WindowContext) {
12668 cx.focus(&self.focus_handle)
12669 }
12670
12671 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12672 self.focus_handle.is_focused(cx)
12673 }
12674
12675 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12676 cx.emit(EditorEvent::Focused);
12677
12678 if let Some(descendant) = self
12679 .last_focused_descendant
12680 .take()
12681 .and_then(|descendant| descendant.upgrade())
12682 {
12683 cx.focus(&descendant);
12684 } else {
12685 if let Some(blame) = self.blame.as_ref() {
12686 blame.update(cx, GitBlame::focus)
12687 }
12688
12689 self.blink_manager.update(cx, BlinkManager::enable);
12690 self.show_cursor_names(cx);
12691 self.buffer.update(cx, |buffer, cx| {
12692 buffer.finalize_last_transaction(cx);
12693 if self.leader_peer_id.is_none() {
12694 buffer.set_active_selections(
12695 &self.selections.disjoint_anchors(),
12696 self.selections.line_mode,
12697 self.cursor_shape,
12698 cx,
12699 );
12700 }
12701 });
12702 }
12703 }
12704
12705 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12706 cx.emit(EditorEvent::FocusedIn)
12707 }
12708
12709 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12710 if event.blurred != self.focus_handle {
12711 self.last_focused_descendant = Some(event.blurred);
12712 }
12713 }
12714
12715 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12716 self.blink_manager.update(cx, BlinkManager::disable);
12717 self.buffer
12718 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12719
12720 if let Some(blame) = self.blame.as_ref() {
12721 blame.update(cx, GitBlame::blur)
12722 }
12723 if !self.hover_state.focused(cx) {
12724 hide_hover(self, cx);
12725 }
12726
12727 self.hide_context_menu(cx);
12728 cx.emit(EditorEvent::Blurred);
12729 cx.notify();
12730 }
12731
12732 pub fn register_action<A: Action>(
12733 &mut self,
12734 listener: impl Fn(&A, &mut WindowContext) + 'static,
12735 ) -> Subscription {
12736 let id = self.next_editor_action_id.post_inc();
12737 let listener = Arc::new(listener);
12738 self.editor_actions.borrow_mut().insert(
12739 id,
12740 Box::new(move |cx| {
12741 let cx = cx.window_context();
12742 let listener = listener.clone();
12743 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12744 let action = action.downcast_ref().unwrap();
12745 if phase == DispatchPhase::Bubble {
12746 listener(action, cx)
12747 }
12748 })
12749 }),
12750 );
12751
12752 let editor_actions = self.editor_actions.clone();
12753 Subscription::new(move || {
12754 editor_actions.borrow_mut().remove(&id);
12755 })
12756 }
12757
12758 pub fn file_header_size(&self) -> u32 {
12759 FILE_HEADER_HEIGHT
12760 }
12761
12762 pub fn revert(
12763 &mut self,
12764 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12765 cx: &mut ViewContext<Self>,
12766 ) {
12767 self.buffer().update(cx, |multi_buffer, cx| {
12768 for (buffer_id, changes) in revert_changes {
12769 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12770 buffer.update(cx, |buffer, cx| {
12771 buffer.edit(
12772 changes.into_iter().map(|(range, text)| {
12773 (range, text.to_string().map(Arc::<str>::from))
12774 }),
12775 None,
12776 cx,
12777 );
12778 });
12779 }
12780 }
12781 });
12782 self.change_selections(None, cx, |selections| selections.refresh());
12783 }
12784
12785 pub fn to_pixel_point(
12786 &mut self,
12787 source: multi_buffer::Anchor,
12788 editor_snapshot: &EditorSnapshot,
12789 cx: &mut ViewContext<Self>,
12790 ) -> Option<gpui::Point<Pixels>> {
12791 let source_point = source.to_display_point(editor_snapshot);
12792 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12793 }
12794
12795 pub fn display_to_pixel_point(
12796 &self,
12797 source: DisplayPoint,
12798 editor_snapshot: &EditorSnapshot,
12799 cx: &WindowContext,
12800 ) -> Option<gpui::Point<Pixels>> {
12801 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12802 let text_layout_details = self.text_layout_details(cx);
12803 let scroll_top = text_layout_details
12804 .scroll_anchor
12805 .scroll_position(editor_snapshot)
12806 .y;
12807
12808 if source.row().as_f32() < scroll_top.floor() {
12809 return None;
12810 }
12811 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12812 let source_y = line_height * (source.row().as_f32() - scroll_top);
12813 Some(gpui::Point::new(source_x, source_y))
12814 }
12815
12816 pub fn has_active_completions_menu(&self) -> bool {
12817 self.context_menu.borrow().as_ref().map_or(false, |menu| {
12818 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
12819 })
12820 }
12821
12822 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12823 self.addons
12824 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
12825 }
12826
12827 pub fn unregister_addon<T: Addon>(&mut self) {
12828 self.addons.remove(&std::any::TypeId::of::<T>());
12829 }
12830
12831 pub fn addon<T: Addon>(&self) -> Option<&T> {
12832 let type_id = std::any::TypeId::of::<T>();
12833 self.addons
12834 .get(&type_id)
12835 .and_then(|item| item.to_any().downcast_ref::<T>())
12836 }
12837
12838 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
12839 let text_layout_details = self.text_layout_details(cx);
12840 let style = &text_layout_details.editor_style;
12841 let font_id = cx.text_system().resolve_font(&style.text.font());
12842 let font_size = style.text.font_size.to_pixels(cx.rem_size());
12843 let line_height = style.text.line_height_in_pixels(cx.rem_size());
12844
12845 let em_width = cx
12846 .text_system()
12847 .typographic_bounds(font_id, font_size, 'm')
12848 .unwrap()
12849 .size
12850 .width;
12851
12852 gpui::Point::new(em_width, line_height)
12853 }
12854}
12855
12856fn get_unstaged_changes_for_buffers(
12857 project: &Model<Project>,
12858 buffers: impl IntoIterator<Item = Model<Buffer>>,
12859 cx: &mut ViewContext<Editor>,
12860) {
12861 let mut tasks = Vec::new();
12862 project.update(cx, |project, cx| {
12863 for buffer in buffers {
12864 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
12865 }
12866 });
12867 cx.spawn(|this, mut cx| async move {
12868 let change_sets = futures::future::join_all(tasks).await;
12869 this.update(&mut cx, |this, cx| {
12870 for change_set in change_sets {
12871 if let Some(change_set) = change_set.log_err() {
12872 this.diff_map.add_change_set(change_set, cx);
12873 }
12874 }
12875 })
12876 .ok();
12877 })
12878 .detach();
12879}
12880
12881fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
12882 let tab_size = tab_size.get() as usize;
12883 let mut width = offset;
12884
12885 for ch in text.chars() {
12886 width += if ch == '\t' {
12887 tab_size - (width % tab_size)
12888 } else {
12889 1
12890 };
12891 }
12892
12893 width - offset
12894}
12895
12896#[cfg(test)]
12897mod tests {
12898 use super::*;
12899
12900 #[test]
12901 fn test_string_size_with_expanded_tabs() {
12902 let nz = |val| NonZeroU32::new(val).unwrap();
12903 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
12904 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
12905 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
12906 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
12907 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
12908 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
12909 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
12910 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
12911 }
12912}
12913
12914/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
12915struct WordBreakingTokenizer<'a> {
12916 input: &'a str,
12917}
12918
12919impl<'a> WordBreakingTokenizer<'a> {
12920 fn new(input: &'a str) -> Self {
12921 Self { input }
12922 }
12923}
12924
12925fn is_char_ideographic(ch: char) -> bool {
12926 use unicode_script::Script::*;
12927 use unicode_script::UnicodeScript;
12928 matches!(ch.script(), Han | Tangut | Yi)
12929}
12930
12931fn is_grapheme_ideographic(text: &str) -> bool {
12932 text.chars().any(is_char_ideographic)
12933}
12934
12935fn is_grapheme_whitespace(text: &str) -> bool {
12936 text.chars().any(|x| x.is_whitespace())
12937}
12938
12939fn should_stay_with_preceding_ideograph(text: &str) -> bool {
12940 text.chars().next().map_or(false, |ch| {
12941 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
12942 })
12943}
12944
12945#[derive(PartialEq, Eq, Debug, Clone, Copy)]
12946struct WordBreakToken<'a> {
12947 token: &'a str,
12948 grapheme_len: usize,
12949 is_whitespace: bool,
12950}
12951
12952impl<'a> Iterator for WordBreakingTokenizer<'a> {
12953 /// Yields a span, the count of graphemes in the token, and whether it was
12954 /// whitespace. Note that it also breaks at word boundaries.
12955 type Item = WordBreakToken<'a>;
12956
12957 fn next(&mut self) -> Option<Self::Item> {
12958 use unicode_segmentation::UnicodeSegmentation;
12959 if self.input.is_empty() {
12960 return None;
12961 }
12962
12963 let mut iter = self.input.graphemes(true).peekable();
12964 let mut offset = 0;
12965 let mut graphemes = 0;
12966 if let Some(first_grapheme) = iter.next() {
12967 let is_whitespace = is_grapheme_whitespace(first_grapheme);
12968 offset += first_grapheme.len();
12969 graphemes += 1;
12970 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
12971 if let Some(grapheme) = iter.peek().copied() {
12972 if should_stay_with_preceding_ideograph(grapheme) {
12973 offset += grapheme.len();
12974 graphemes += 1;
12975 }
12976 }
12977 } else {
12978 let mut words = self.input[offset..].split_word_bound_indices().peekable();
12979 let mut next_word_bound = words.peek().copied();
12980 if next_word_bound.map_or(false, |(i, _)| i == 0) {
12981 next_word_bound = words.next();
12982 }
12983 while let Some(grapheme) = iter.peek().copied() {
12984 if next_word_bound.map_or(false, |(i, _)| i == offset) {
12985 break;
12986 };
12987 if is_grapheme_whitespace(grapheme) != is_whitespace {
12988 break;
12989 };
12990 offset += grapheme.len();
12991 graphemes += 1;
12992 iter.next();
12993 }
12994 }
12995 let token = &self.input[..offset];
12996 self.input = &self.input[offset..];
12997 if is_whitespace {
12998 Some(WordBreakToken {
12999 token: " ",
13000 grapheme_len: 1,
13001 is_whitespace: true,
13002 })
13003 } else {
13004 Some(WordBreakToken {
13005 token,
13006 grapheme_len: graphemes,
13007 is_whitespace: false,
13008 })
13009 }
13010 } else {
13011 None
13012 }
13013 }
13014}
13015
13016#[test]
13017fn test_word_breaking_tokenizer() {
13018 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13019 ("", &[]),
13020 (" ", &[(" ", 1, true)]),
13021 ("Ʒ", &[("Ʒ", 1, false)]),
13022 ("Ǽ", &[("Ǽ", 1, false)]),
13023 ("⋑", &[("⋑", 1, false)]),
13024 ("⋑⋑", &[("⋑⋑", 2, false)]),
13025 (
13026 "原理，进而",
13027 &[
13028 ("原", 1, false),
13029 ("理，", 2, false),
13030 ("进", 1, false),
13031 ("而", 1, false),
13032 ],
13033 ),
13034 (
13035 "hello world",
13036 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13037 ),
13038 (
13039 "hello, world",
13040 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13041 ),
13042 (
13043 " hello world",
13044 &[
13045 (" ", 1, true),
13046 ("hello", 5, false),
13047 (" ", 1, true),
13048 ("world", 5, false),
13049 ],
13050 ),
13051 (
13052 "这是什么 \n 钢笔",
13053 &[
13054 ("这", 1, false),
13055 ("是", 1, false),
13056 ("什", 1, false),
13057 ("么", 1, false),
13058 (" ", 1, true),
13059 ("钢", 1, false),
13060 ("笔", 1, false),
13061 ],
13062 ),
13063 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13064 ];
13065
13066 for (input, result) in tests {
13067 assert_eq!(
13068 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13069 result
13070 .iter()
13071 .copied()
13072 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13073 token,
13074 grapheme_len,
13075 is_whitespace,
13076 })
13077 .collect::<Vec<_>>()
13078 );
13079 }
13080}
13081
13082fn wrap_with_prefix(
13083 line_prefix: String,
13084 unwrapped_text: String,
13085 wrap_column: usize,
13086 tab_size: NonZeroU32,
13087) -> String {
13088 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13089 let mut wrapped_text = String::new();
13090 let mut current_line = line_prefix.clone();
13091
13092 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13093 let mut current_line_len = line_prefix_len;
13094 for WordBreakToken {
13095 token,
13096 grapheme_len,
13097 is_whitespace,
13098 } in tokenizer
13099 {
13100 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13101 wrapped_text.push_str(current_line.trim_end());
13102 wrapped_text.push('\n');
13103 current_line.truncate(line_prefix.len());
13104 current_line_len = line_prefix_len;
13105 if !is_whitespace {
13106 current_line.push_str(token);
13107 current_line_len += grapheme_len;
13108 }
13109 } else if !is_whitespace {
13110 current_line.push_str(token);
13111 current_line_len += grapheme_len;
13112 } else if current_line_len != line_prefix_len {
13113 current_line.push(' ');
13114 current_line_len += 1;
13115 }
13116 }
13117
13118 if !current_line.is_empty() {
13119 wrapped_text.push_str(¤t_line);
13120 }
13121 wrapped_text
13122}
13123
13124#[test]
13125fn test_wrap_with_prefix() {
13126 assert_eq!(
13127 wrap_with_prefix(
13128 "# ".to_string(),
13129 "abcdefg".to_string(),
13130 4,
13131 NonZeroU32::new(4).unwrap()
13132 ),
13133 "# abcdefg"
13134 );
13135 assert_eq!(
13136 wrap_with_prefix(
13137 "".to_string(),
13138 "\thello world".to_string(),
13139 8,
13140 NonZeroU32::new(4).unwrap()
13141 ),
13142 "hello\nworld"
13143 );
13144 assert_eq!(
13145 wrap_with_prefix(
13146 "// ".to_string(),
13147 "xx \nyy zz aa bb cc".to_string(),
13148 12,
13149 NonZeroU32::new(4).unwrap()
13150 ),
13151 "// xx yy zz\n// aa bb cc"
13152 );
13153 assert_eq!(
13154 wrap_with_prefix(
13155 String::new(),
13156 "这是什么 \n 钢笔".to_string(),
13157 3,
13158 NonZeroU32::new(4).unwrap()
13159 ),
13160 "这是什\n么 钢\n笔"
13161 );
13162}
13163
13164fn hunks_for_selections(
13165 snapshot: &EditorSnapshot,
13166 selections: &[Selection<Point>],
13167) -> Vec<MultiBufferDiffHunk> {
13168 hunks_for_ranges(
13169 selections.iter().map(|selection| selection.range()),
13170 snapshot,
13171 )
13172}
13173
13174pub fn hunks_for_ranges(
13175 ranges: impl Iterator<Item = Range<Point>>,
13176 snapshot: &EditorSnapshot,
13177) -> Vec<MultiBufferDiffHunk> {
13178 let mut hunks = Vec::new();
13179 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13180 HashMap::default();
13181 for query_range in ranges {
13182 let query_rows =
13183 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
13184 for hunk in snapshot.diff_map.diff_hunks_in_range(
13185 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
13186 &snapshot.buffer_snapshot,
13187 ) {
13188 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13189 // when the caret is just above or just below the deleted hunk.
13190 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13191 let related_to_selection = if allow_adjacent {
13192 hunk.row_range.overlaps(&query_rows)
13193 || hunk.row_range.start == query_rows.end
13194 || hunk.row_range.end == query_rows.start
13195 } else {
13196 hunk.row_range.overlaps(&query_rows)
13197 };
13198 if related_to_selection {
13199 if !processed_buffer_rows
13200 .entry(hunk.buffer_id)
13201 .or_default()
13202 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13203 {
13204 continue;
13205 }
13206 hunks.push(hunk);
13207 }
13208 }
13209 }
13210
13211 hunks
13212}
13213
13214pub trait CollaborationHub {
13215 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13216 fn user_participant_indices<'a>(
13217 &self,
13218 cx: &'a AppContext,
13219 ) -> &'a HashMap<u64, ParticipantIndex>;
13220 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13221}
13222
13223impl CollaborationHub for Model<Project> {
13224 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13225 self.read(cx).collaborators()
13226 }
13227
13228 fn user_participant_indices<'a>(
13229 &self,
13230 cx: &'a AppContext,
13231 ) -> &'a HashMap<u64, ParticipantIndex> {
13232 self.read(cx).user_store().read(cx).participant_indices()
13233 }
13234
13235 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13236 let this = self.read(cx);
13237 let user_ids = this.collaborators().values().map(|c| c.user_id);
13238 this.user_store().read_with(cx, |user_store, cx| {
13239 user_store.participant_names(user_ids, cx)
13240 })
13241 }
13242}
13243
13244pub trait SemanticsProvider {
13245 fn hover(
13246 &self,
13247 buffer: &Model<Buffer>,
13248 position: text::Anchor,
13249 cx: &mut AppContext,
13250 ) -> Option<Task<Vec<project::Hover>>>;
13251
13252 fn inlay_hints(
13253 &self,
13254 buffer_handle: Model<Buffer>,
13255 range: Range<text::Anchor>,
13256 cx: &mut AppContext,
13257 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13258
13259 fn resolve_inlay_hint(
13260 &self,
13261 hint: InlayHint,
13262 buffer_handle: Model<Buffer>,
13263 server_id: LanguageServerId,
13264 cx: &mut AppContext,
13265 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13266
13267 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13268
13269 fn document_highlights(
13270 &self,
13271 buffer: &Model<Buffer>,
13272 position: text::Anchor,
13273 cx: &mut AppContext,
13274 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13275
13276 fn definitions(
13277 &self,
13278 buffer: &Model<Buffer>,
13279 position: text::Anchor,
13280 kind: GotoDefinitionKind,
13281 cx: &mut AppContext,
13282 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13283
13284 fn range_for_rename(
13285 &self,
13286 buffer: &Model<Buffer>,
13287 position: text::Anchor,
13288 cx: &mut AppContext,
13289 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13290
13291 fn perform_rename(
13292 &self,
13293 buffer: &Model<Buffer>,
13294 position: text::Anchor,
13295 new_name: String,
13296 cx: &mut AppContext,
13297 ) -> Option<Task<Result<ProjectTransaction>>>;
13298}
13299
13300pub trait CompletionProvider {
13301 fn completions(
13302 &self,
13303 buffer: &Model<Buffer>,
13304 buffer_position: text::Anchor,
13305 trigger: CompletionContext,
13306 cx: &mut ViewContext<Editor>,
13307 ) -> Task<Result<Vec<Completion>>>;
13308
13309 fn resolve_completions(
13310 &self,
13311 buffer: Model<Buffer>,
13312 completion_indices: Vec<usize>,
13313 completions: Rc<RefCell<Box<[Completion]>>>,
13314 cx: &mut ViewContext<Editor>,
13315 ) -> Task<Result<bool>>;
13316
13317 fn apply_additional_edits_for_completion(
13318 &self,
13319 buffer: Model<Buffer>,
13320 completion: Completion,
13321 push_to_history: bool,
13322 cx: &mut ViewContext<Editor>,
13323 ) -> Task<Result<Option<language::Transaction>>>;
13324
13325 fn is_completion_trigger(
13326 &self,
13327 buffer: &Model<Buffer>,
13328 position: language::Anchor,
13329 text: &str,
13330 trigger_in_words: bool,
13331 cx: &mut ViewContext<Editor>,
13332 ) -> bool;
13333
13334 fn sort_completions(&self) -> bool {
13335 true
13336 }
13337}
13338
13339pub trait CodeActionProvider {
13340 fn code_actions(
13341 &self,
13342 buffer: &Model<Buffer>,
13343 range: Range<text::Anchor>,
13344 cx: &mut WindowContext,
13345 ) -> Task<Result<Vec<CodeAction>>>;
13346
13347 fn apply_code_action(
13348 &self,
13349 buffer_handle: Model<Buffer>,
13350 action: CodeAction,
13351 excerpt_id: ExcerptId,
13352 push_to_history: bool,
13353 cx: &mut WindowContext,
13354 ) -> Task<Result<ProjectTransaction>>;
13355}
13356
13357impl CodeActionProvider for Model<Project> {
13358 fn code_actions(
13359 &self,
13360 buffer: &Model<Buffer>,
13361 range: Range<text::Anchor>,
13362 cx: &mut WindowContext,
13363 ) -> Task<Result<Vec<CodeAction>>> {
13364 self.update(cx, |project, cx| {
13365 project.code_actions(buffer, range, None, cx)
13366 })
13367 }
13368
13369 fn apply_code_action(
13370 &self,
13371 buffer_handle: Model<Buffer>,
13372 action: CodeAction,
13373 _excerpt_id: ExcerptId,
13374 push_to_history: bool,
13375 cx: &mut WindowContext,
13376 ) -> Task<Result<ProjectTransaction>> {
13377 self.update(cx, |project, cx| {
13378 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13379 })
13380 }
13381}
13382
13383fn snippet_completions(
13384 project: &Project,
13385 buffer: &Model<Buffer>,
13386 buffer_position: text::Anchor,
13387 cx: &mut AppContext,
13388) -> Task<Result<Vec<Completion>>> {
13389 let language = buffer.read(cx).language_at(buffer_position);
13390 let language_name = language.as_ref().map(|language| language.lsp_id());
13391 let snippet_store = project.snippets().read(cx);
13392 let snippets = snippet_store.snippets_for(language_name, cx);
13393
13394 if snippets.is_empty() {
13395 return Task::ready(Ok(vec![]));
13396 }
13397 let snapshot = buffer.read(cx).text_snapshot();
13398 let chars: String = snapshot
13399 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13400 .collect();
13401
13402 let scope = language.map(|language| language.default_scope());
13403 let executor = cx.background_executor().clone();
13404
13405 cx.background_executor().spawn(async move {
13406 let classifier = CharClassifier::new(scope).for_completion(true);
13407 let mut last_word = chars
13408 .chars()
13409 .take_while(|c| classifier.is_word(*c))
13410 .collect::<String>();
13411 last_word = last_word.chars().rev().collect();
13412
13413 if last_word.is_empty() {
13414 return Ok(vec![]);
13415 }
13416
13417 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13418 let to_lsp = |point: &text::Anchor| {
13419 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13420 point_to_lsp(end)
13421 };
13422 let lsp_end = to_lsp(&buffer_position);
13423
13424 let candidates = snippets
13425 .iter()
13426 .enumerate()
13427 .flat_map(|(ix, snippet)| {
13428 snippet
13429 .prefix
13430 .iter()
13431 .map(move |prefix| StringMatchCandidate::new(ix, &prefix))
13432 })
13433 .collect::<Vec<StringMatchCandidate>>();
13434
13435 let mut matches = fuzzy::match_strings(
13436 &candidates,
13437 &last_word,
13438 last_word.chars().any(|c| c.is_uppercase()),
13439 100,
13440 &Default::default(),
13441 executor,
13442 )
13443 .await;
13444
13445 // Remove all candidates where the query's start does not match the start of any word in the candidate
13446 if let Some(query_start) = last_word.chars().next() {
13447 matches.retain(|string_match| {
13448 split_words(&string_match.string).any(|word| {
13449 // Check that the first codepoint of the word as lowercase matches the first
13450 // codepoint of the query as lowercase
13451 word.chars()
13452 .flat_map(|codepoint| codepoint.to_lowercase())
13453 .zip(query_start.to_lowercase())
13454 .all(|(word_cp, query_cp)| word_cp == query_cp)
13455 })
13456 });
13457 }
13458
13459 let matched_strings = matches
13460 .into_iter()
13461 .map(|m| m.string)
13462 .collect::<HashSet<_>>();
13463
13464 let result: Vec<Completion> = snippets
13465 .into_iter()
13466 .filter_map(|snippet| {
13467 let matching_prefix = snippet
13468 .prefix
13469 .iter()
13470 .find(|prefix| matched_strings.contains(*prefix))?;
13471 let start = as_offset - last_word.len();
13472 let start = snapshot.anchor_before(start);
13473 let range = start..buffer_position;
13474 let lsp_start = to_lsp(&start);
13475 let lsp_range = lsp::Range {
13476 start: lsp_start,
13477 end: lsp_end,
13478 };
13479 Some(Completion {
13480 old_range: range,
13481 new_text: snippet.body.clone(),
13482 label: CodeLabel {
13483 text: matching_prefix.clone(),
13484 runs: vec![],
13485 filter_range: 0..matching_prefix.len(),
13486 },
13487 server_id: LanguageServerId(usize::MAX),
13488 documentation: snippet.description.clone().map(Documentation::SingleLine),
13489 lsp_completion: lsp::CompletionItem {
13490 label: snippet.prefix.first().unwrap().clone(),
13491 kind: Some(CompletionItemKind::SNIPPET),
13492 label_details: snippet.description.as_ref().map(|description| {
13493 lsp::CompletionItemLabelDetails {
13494 detail: Some(description.clone()),
13495 description: None,
13496 }
13497 }),
13498 insert_text_format: Some(InsertTextFormat::SNIPPET),
13499 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13500 lsp::InsertReplaceEdit {
13501 new_text: snippet.body.clone(),
13502 insert: lsp_range,
13503 replace: lsp_range,
13504 },
13505 )),
13506 filter_text: Some(snippet.body.clone()),
13507 sort_text: Some(char::MAX.to_string()),
13508 ..Default::default()
13509 },
13510 confirm: None,
13511 })
13512 })
13513 .collect();
13514
13515 Ok(result)
13516 })
13517}
13518
13519impl CompletionProvider for Model<Project> {
13520 fn completions(
13521 &self,
13522 buffer: &Model<Buffer>,
13523 buffer_position: text::Anchor,
13524 options: CompletionContext,
13525 cx: &mut ViewContext<Editor>,
13526 ) -> Task<Result<Vec<Completion>>> {
13527 self.update(cx, |project, cx| {
13528 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13529 let project_completions = project.completions(buffer, buffer_position, options, cx);
13530 cx.background_executor().spawn(async move {
13531 let mut completions = project_completions.await?;
13532 let snippets_completions = snippets.await?;
13533 completions.extend(snippets_completions);
13534 Ok(completions)
13535 })
13536 })
13537 }
13538
13539 fn resolve_completions(
13540 &self,
13541 buffer: Model<Buffer>,
13542 completion_indices: Vec<usize>,
13543 completions: Rc<RefCell<Box<[Completion]>>>,
13544 cx: &mut ViewContext<Editor>,
13545 ) -> Task<Result<bool>> {
13546 self.update(cx, |project, cx| {
13547 project.resolve_completions(buffer, completion_indices, completions, cx)
13548 })
13549 }
13550
13551 fn apply_additional_edits_for_completion(
13552 &self,
13553 buffer: Model<Buffer>,
13554 completion: Completion,
13555 push_to_history: bool,
13556 cx: &mut ViewContext<Editor>,
13557 ) -> Task<Result<Option<language::Transaction>>> {
13558 self.update(cx, |project, cx| {
13559 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13560 })
13561 }
13562
13563 fn is_completion_trigger(
13564 &self,
13565 buffer: &Model<Buffer>,
13566 position: language::Anchor,
13567 text: &str,
13568 trigger_in_words: bool,
13569 cx: &mut ViewContext<Editor>,
13570 ) -> bool {
13571 let mut chars = text.chars();
13572 let char = if let Some(char) = chars.next() {
13573 char
13574 } else {
13575 return false;
13576 };
13577 if chars.next().is_some() {
13578 return false;
13579 }
13580
13581 let buffer = buffer.read(cx);
13582 let snapshot = buffer.snapshot();
13583 if !snapshot.settings_at(position, cx).show_completions_on_input {
13584 return false;
13585 }
13586 let classifier = snapshot.char_classifier_at(position).for_completion(true);
13587 if trigger_in_words && classifier.is_word(char) {
13588 return true;
13589 }
13590
13591 buffer.completion_triggers().contains(text)
13592 }
13593}
13594
13595impl SemanticsProvider for Model<Project> {
13596 fn hover(
13597 &self,
13598 buffer: &Model<Buffer>,
13599 position: text::Anchor,
13600 cx: &mut AppContext,
13601 ) -> Option<Task<Vec<project::Hover>>> {
13602 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13603 }
13604
13605 fn document_highlights(
13606 &self,
13607 buffer: &Model<Buffer>,
13608 position: text::Anchor,
13609 cx: &mut AppContext,
13610 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13611 Some(self.update(cx, |project, cx| {
13612 project.document_highlights(buffer, position, cx)
13613 }))
13614 }
13615
13616 fn definitions(
13617 &self,
13618 buffer: &Model<Buffer>,
13619 position: text::Anchor,
13620 kind: GotoDefinitionKind,
13621 cx: &mut AppContext,
13622 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13623 Some(self.update(cx, |project, cx| match kind {
13624 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13625 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13626 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13627 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13628 }))
13629 }
13630
13631 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13632 // TODO: make this work for remote projects
13633 self.read(cx)
13634 .language_servers_for_local_buffer(buffer.read(cx), cx)
13635 .any(
13636 |(_, server)| match server.capabilities().inlay_hint_provider {
13637 Some(lsp::OneOf::Left(enabled)) => enabled,
13638 Some(lsp::OneOf::Right(_)) => true,
13639 None => false,
13640 },
13641 )
13642 }
13643
13644 fn inlay_hints(
13645 &self,
13646 buffer_handle: Model<Buffer>,
13647 range: Range<text::Anchor>,
13648 cx: &mut AppContext,
13649 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13650 Some(self.update(cx, |project, cx| {
13651 project.inlay_hints(buffer_handle, range, cx)
13652 }))
13653 }
13654
13655 fn resolve_inlay_hint(
13656 &self,
13657 hint: InlayHint,
13658 buffer_handle: Model<Buffer>,
13659 server_id: LanguageServerId,
13660 cx: &mut AppContext,
13661 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13662 Some(self.update(cx, |project, cx| {
13663 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13664 }))
13665 }
13666
13667 fn range_for_rename(
13668 &self,
13669 buffer: &Model<Buffer>,
13670 position: text::Anchor,
13671 cx: &mut AppContext,
13672 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13673 Some(self.update(cx, |project, cx| {
13674 project.prepare_rename(buffer.clone(), position, cx)
13675 }))
13676 }
13677
13678 fn perform_rename(
13679 &self,
13680 buffer: &Model<Buffer>,
13681 position: text::Anchor,
13682 new_name: String,
13683 cx: &mut AppContext,
13684 ) -> Option<Task<Result<ProjectTransaction>>> {
13685 Some(self.update(cx, |project, cx| {
13686 project.perform_rename(buffer.clone(), position, new_name, cx)
13687 }))
13688 }
13689}
13690
13691fn inlay_hint_settings(
13692 location: Anchor,
13693 snapshot: &MultiBufferSnapshot,
13694 cx: &mut ViewContext<'_, Editor>,
13695) -> InlayHintSettings {
13696 let file = snapshot.file_at(location);
13697 let language = snapshot.language_at(location).map(|l| l.name());
13698 language_settings(language, file, cx).inlay_hints
13699}
13700
13701fn consume_contiguous_rows(
13702 contiguous_row_selections: &mut Vec<Selection<Point>>,
13703 selection: &Selection<Point>,
13704 display_map: &DisplaySnapshot,
13705 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
13706) -> (MultiBufferRow, MultiBufferRow) {
13707 contiguous_row_selections.push(selection.clone());
13708 let start_row = MultiBufferRow(selection.start.row);
13709 let mut end_row = ending_row(selection, display_map);
13710
13711 while let Some(next_selection) = selections.peek() {
13712 if next_selection.start.row <= end_row.0 {
13713 end_row = ending_row(next_selection, display_map);
13714 contiguous_row_selections.push(selections.next().unwrap().clone());
13715 } else {
13716 break;
13717 }
13718 }
13719 (start_row, end_row)
13720}
13721
13722fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13723 if next_selection.end.column > 0 || next_selection.is_empty() {
13724 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13725 } else {
13726 MultiBufferRow(next_selection.end.row)
13727 }
13728}
13729
13730impl EditorSnapshot {
13731 pub fn remote_selections_in_range<'a>(
13732 &'a self,
13733 range: &'a Range<Anchor>,
13734 collaboration_hub: &dyn CollaborationHub,
13735 cx: &'a AppContext,
13736 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13737 let participant_names = collaboration_hub.user_names(cx);
13738 let participant_indices = collaboration_hub.user_participant_indices(cx);
13739 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13740 let collaborators_by_replica_id = collaborators_by_peer_id
13741 .iter()
13742 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13743 .collect::<HashMap<_, _>>();
13744 self.buffer_snapshot
13745 .selections_in_range(range, false)
13746 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13747 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13748 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13749 let user_name = participant_names.get(&collaborator.user_id).cloned();
13750 Some(RemoteSelection {
13751 replica_id,
13752 selection,
13753 cursor_shape,
13754 line_mode,
13755 participant_index,
13756 peer_id: collaborator.peer_id,
13757 user_name,
13758 })
13759 })
13760 }
13761
13762 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13763 self.display_snapshot.buffer_snapshot.language_at(position)
13764 }
13765
13766 pub fn is_focused(&self) -> bool {
13767 self.is_focused
13768 }
13769
13770 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13771 self.placeholder_text.as_ref()
13772 }
13773
13774 pub fn scroll_position(&self) -> gpui::Point<f32> {
13775 self.scroll_anchor.scroll_position(&self.display_snapshot)
13776 }
13777
13778 fn gutter_dimensions(
13779 &self,
13780 font_id: FontId,
13781 font_size: Pixels,
13782 em_width: Pixels,
13783 em_advance: Pixels,
13784 max_line_number_width: Pixels,
13785 cx: &AppContext,
13786 ) -> GutterDimensions {
13787 if !self.show_gutter {
13788 return GutterDimensions::default();
13789 }
13790 let descent = cx.text_system().descent(font_id, font_size);
13791
13792 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13793 matches!(
13794 ProjectSettings::get_global(cx).git.git_gutter,
13795 Some(GitGutterSetting::TrackedFiles)
13796 )
13797 });
13798 let gutter_settings = EditorSettings::get_global(cx).gutter;
13799 let show_line_numbers = self
13800 .show_line_numbers
13801 .unwrap_or(gutter_settings.line_numbers);
13802 let line_gutter_width = if show_line_numbers {
13803 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13804 let min_width_for_number_on_gutter = em_advance * 4.0;
13805 max_line_number_width.max(min_width_for_number_on_gutter)
13806 } else {
13807 0.0.into()
13808 };
13809
13810 let show_code_actions = self
13811 .show_code_actions
13812 .unwrap_or(gutter_settings.code_actions);
13813
13814 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13815
13816 let git_blame_entries_width =
13817 self.git_blame_gutter_max_author_length
13818 .map(|max_author_length| {
13819 // Length of the author name, but also space for the commit hash,
13820 // the spacing and the timestamp.
13821 let max_char_count = max_author_length
13822 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13823 + 7 // length of commit sha
13824 + 14 // length of max relative timestamp ("60 minutes ago")
13825 + 4; // gaps and margins
13826
13827 em_advance * max_char_count
13828 });
13829
13830 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13831 left_padding += if show_code_actions || show_runnables {
13832 em_width * 3.0
13833 } else if show_git_gutter && show_line_numbers {
13834 em_width * 2.0
13835 } else if show_git_gutter || show_line_numbers {
13836 em_width
13837 } else {
13838 px(0.)
13839 };
13840
13841 let right_padding = if gutter_settings.folds && show_line_numbers {
13842 em_width * 4.0
13843 } else if gutter_settings.folds {
13844 em_width * 3.0
13845 } else if show_line_numbers {
13846 em_width
13847 } else {
13848 px(0.)
13849 };
13850
13851 GutterDimensions {
13852 left_padding,
13853 right_padding,
13854 width: line_gutter_width + left_padding + right_padding,
13855 margin: -descent,
13856 git_blame_entries_width,
13857 }
13858 }
13859
13860 pub fn render_crease_toggle(
13861 &self,
13862 buffer_row: MultiBufferRow,
13863 row_contains_cursor: bool,
13864 editor: View<Editor>,
13865 cx: &mut WindowContext,
13866 ) -> Option<AnyElement> {
13867 let folded = self.is_line_folded(buffer_row);
13868 let mut is_foldable = false;
13869
13870 if let Some(crease) = self
13871 .crease_snapshot
13872 .query_row(buffer_row, &self.buffer_snapshot)
13873 {
13874 is_foldable = true;
13875 match crease {
13876 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
13877 if let Some(render_toggle) = render_toggle {
13878 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
13879 if folded {
13880 editor.update(cx, |editor, cx| {
13881 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
13882 });
13883 } else {
13884 editor.update(cx, |editor, cx| {
13885 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
13886 });
13887 }
13888 });
13889 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
13890 }
13891 }
13892 }
13893 }
13894
13895 is_foldable |= self.starts_indent(buffer_row);
13896
13897 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
13898 Some(
13899 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
13900 .toggle_state(folded)
13901 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
13902 if folded {
13903 this.unfold_at(&UnfoldAt { buffer_row }, cx);
13904 } else {
13905 this.fold_at(&FoldAt { buffer_row }, cx);
13906 }
13907 }))
13908 .into_any_element(),
13909 )
13910 } else {
13911 None
13912 }
13913 }
13914
13915 pub fn render_crease_trailer(
13916 &self,
13917 buffer_row: MultiBufferRow,
13918 cx: &mut WindowContext,
13919 ) -> Option<AnyElement> {
13920 let folded = self.is_line_folded(buffer_row);
13921 if let Crease::Inline { render_trailer, .. } = self
13922 .crease_snapshot
13923 .query_row(buffer_row, &self.buffer_snapshot)?
13924 {
13925 let render_trailer = render_trailer.as_ref()?;
13926 Some(render_trailer(buffer_row, folded, cx))
13927 } else {
13928 None
13929 }
13930 }
13931}
13932
13933impl Deref for EditorSnapshot {
13934 type Target = DisplaySnapshot;
13935
13936 fn deref(&self) -> &Self::Target {
13937 &self.display_snapshot
13938 }
13939}
13940
13941#[derive(Clone, Debug, PartialEq, Eq)]
13942pub enum EditorEvent {
13943 InputIgnored {
13944 text: Arc<str>,
13945 },
13946 InputHandled {
13947 utf16_range_to_replace: Option<Range<isize>>,
13948 text: Arc<str>,
13949 },
13950 ExcerptsAdded {
13951 buffer: Model<Buffer>,
13952 predecessor: ExcerptId,
13953 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
13954 },
13955 ExcerptsRemoved {
13956 ids: Vec<ExcerptId>,
13957 },
13958 BufferFoldToggled {
13959 ids: Vec<ExcerptId>,
13960 folded: bool,
13961 },
13962 ExcerptsEdited {
13963 ids: Vec<ExcerptId>,
13964 },
13965 ExcerptsExpanded {
13966 ids: Vec<ExcerptId>,
13967 },
13968 BufferEdited,
13969 Edited {
13970 transaction_id: clock::Lamport,
13971 },
13972 Reparsed(BufferId),
13973 Focused,
13974 FocusedIn,
13975 Blurred,
13976 DirtyChanged,
13977 Saved,
13978 TitleChanged,
13979 DiffBaseChanged,
13980 SelectionsChanged {
13981 local: bool,
13982 },
13983 ScrollPositionChanged {
13984 local: bool,
13985 autoscroll: bool,
13986 },
13987 Closed,
13988 TransactionUndone {
13989 transaction_id: clock::Lamport,
13990 },
13991 TransactionBegun {
13992 transaction_id: clock::Lamport,
13993 },
13994 Reloaded,
13995 CursorShapeChanged,
13996}
13997
13998impl EventEmitter<EditorEvent> for Editor {}
13999
14000impl FocusableView for Editor {
14001 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14002 self.focus_handle.clone()
14003 }
14004}
14005
14006impl Render for Editor {
14007 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14008 let settings = ThemeSettings::get_global(cx);
14009
14010 let mut text_style = match self.mode {
14011 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14012 color: cx.theme().colors().editor_foreground,
14013 font_family: settings.ui_font.family.clone(),
14014 font_features: settings.ui_font.features.clone(),
14015 font_fallbacks: settings.ui_font.fallbacks.clone(),
14016 font_size: rems(0.875).into(),
14017 font_weight: settings.ui_font.weight,
14018 line_height: relative(settings.buffer_line_height.value()),
14019 ..Default::default()
14020 },
14021 EditorMode::Full => TextStyle {
14022 color: cx.theme().colors().editor_foreground,
14023 font_family: settings.buffer_font.family.clone(),
14024 font_features: settings.buffer_font.features.clone(),
14025 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14026 font_size: settings.buffer_font_size(cx).into(),
14027 font_weight: settings.buffer_font.weight,
14028 line_height: relative(settings.buffer_line_height.value()),
14029 ..Default::default()
14030 },
14031 };
14032 if let Some(text_style_refinement) = &self.text_style_refinement {
14033 text_style.refine(text_style_refinement)
14034 }
14035
14036 let background = match self.mode {
14037 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14038 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14039 EditorMode::Full => cx.theme().colors().editor_background,
14040 };
14041
14042 EditorElement::new(
14043 cx.view(),
14044 EditorStyle {
14045 background,
14046 local_player: cx.theme().players().local(),
14047 text: text_style,
14048 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14049 syntax: cx.theme().syntax().clone(),
14050 status: cx.theme().status().clone(),
14051 inlay_hints_style: make_inlay_hints_style(cx),
14052 inline_completion_styles: make_suggestion_styles(cx),
14053 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14054 },
14055 )
14056 }
14057}
14058
14059impl ViewInputHandler for Editor {
14060 fn text_for_range(
14061 &mut self,
14062 range_utf16: Range<usize>,
14063 adjusted_range: &mut Option<Range<usize>>,
14064 cx: &mut ViewContext<Self>,
14065 ) -> Option<String> {
14066 let snapshot = self.buffer.read(cx).read(cx);
14067 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14068 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14069 if (start.0..end.0) != range_utf16 {
14070 adjusted_range.replace(start.0..end.0);
14071 }
14072 Some(snapshot.text_for_range(start..end).collect())
14073 }
14074
14075 fn selected_text_range(
14076 &mut self,
14077 ignore_disabled_input: bool,
14078 cx: &mut ViewContext<Self>,
14079 ) -> Option<UTF16Selection> {
14080 // Prevent the IME menu from appearing when holding down an alphabetic key
14081 // while input is disabled.
14082 if !ignore_disabled_input && !self.input_enabled {
14083 return None;
14084 }
14085
14086 let selection = self.selections.newest::<OffsetUtf16>(cx);
14087 let range = selection.range();
14088
14089 Some(UTF16Selection {
14090 range: range.start.0..range.end.0,
14091 reversed: selection.reversed,
14092 })
14093 }
14094
14095 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14096 let snapshot = self.buffer.read(cx).read(cx);
14097 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14098 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14099 }
14100
14101 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14102 self.clear_highlights::<InputComposition>(cx);
14103 self.ime_transaction.take();
14104 }
14105
14106 fn replace_text_in_range(
14107 &mut self,
14108 range_utf16: Option<Range<usize>>,
14109 text: &str,
14110 cx: &mut ViewContext<Self>,
14111 ) {
14112 if !self.input_enabled {
14113 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14114 return;
14115 }
14116
14117 self.transact(cx, |this, cx| {
14118 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14119 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14120 Some(this.selection_replacement_ranges(range_utf16, cx))
14121 } else {
14122 this.marked_text_ranges(cx)
14123 };
14124
14125 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14126 let newest_selection_id = this.selections.newest_anchor().id;
14127 this.selections
14128 .all::<OffsetUtf16>(cx)
14129 .iter()
14130 .zip(ranges_to_replace.iter())
14131 .find_map(|(selection, range)| {
14132 if selection.id == newest_selection_id {
14133 Some(
14134 (range.start.0 as isize - selection.head().0 as isize)
14135 ..(range.end.0 as isize - selection.head().0 as isize),
14136 )
14137 } else {
14138 None
14139 }
14140 })
14141 });
14142
14143 cx.emit(EditorEvent::InputHandled {
14144 utf16_range_to_replace: range_to_replace,
14145 text: text.into(),
14146 });
14147
14148 if let Some(new_selected_ranges) = new_selected_ranges {
14149 this.change_selections(None, cx, |selections| {
14150 selections.select_ranges(new_selected_ranges)
14151 });
14152 this.backspace(&Default::default(), cx);
14153 }
14154
14155 this.handle_input(text, cx);
14156 });
14157
14158 if let Some(transaction) = self.ime_transaction {
14159 self.buffer.update(cx, |buffer, cx| {
14160 buffer.group_until_transaction(transaction, cx);
14161 });
14162 }
14163
14164 self.unmark_text(cx);
14165 }
14166
14167 fn replace_and_mark_text_in_range(
14168 &mut self,
14169 range_utf16: Option<Range<usize>>,
14170 text: &str,
14171 new_selected_range_utf16: Option<Range<usize>>,
14172 cx: &mut ViewContext<Self>,
14173 ) {
14174 if !self.input_enabled {
14175 return;
14176 }
14177
14178 let transaction = self.transact(cx, |this, cx| {
14179 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14180 let snapshot = this.buffer.read(cx).read(cx);
14181 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14182 for marked_range in &mut marked_ranges {
14183 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14184 marked_range.start.0 += relative_range_utf16.start;
14185 marked_range.start =
14186 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14187 marked_range.end =
14188 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14189 }
14190 }
14191 Some(marked_ranges)
14192 } else if let Some(range_utf16) = range_utf16 {
14193 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14194 Some(this.selection_replacement_ranges(range_utf16, cx))
14195 } else {
14196 None
14197 };
14198
14199 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14200 let newest_selection_id = this.selections.newest_anchor().id;
14201 this.selections
14202 .all::<OffsetUtf16>(cx)
14203 .iter()
14204 .zip(ranges_to_replace.iter())
14205 .find_map(|(selection, range)| {
14206 if selection.id == newest_selection_id {
14207 Some(
14208 (range.start.0 as isize - selection.head().0 as isize)
14209 ..(range.end.0 as isize - selection.head().0 as isize),
14210 )
14211 } else {
14212 None
14213 }
14214 })
14215 });
14216
14217 cx.emit(EditorEvent::InputHandled {
14218 utf16_range_to_replace: range_to_replace,
14219 text: text.into(),
14220 });
14221
14222 if let Some(ranges) = ranges_to_replace {
14223 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14224 }
14225
14226 let marked_ranges = {
14227 let snapshot = this.buffer.read(cx).read(cx);
14228 this.selections
14229 .disjoint_anchors()
14230 .iter()
14231 .map(|selection| {
14232 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14233 })
14234 .collect::<Vec<_>>()
14235 };
14236
14237 if text.is_empty() {
14238 this.unmark_text(cx);
14239 } else {
14240 this.highlight_text::<InputComposition>(
14241 marked_ranges.clone(),
14242 HighlightStyle {
14243 underline: Some(UnderlineStyle {
14244 thickness: px(1.),
14245 color: None,
14246 wavy: false,
14247 }),
14248 ..Default::default()
14249 },
14250 cx,
14251 );
14252 }
14253
14254 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14255 let use_autoclose = this.use_autoclose;
14256 let use_auto_surround = this.use_auto_surround;
14257 this.set_use_autoclose(false);
14258 this.set_use_auto_surround(false);
14259 this.handle_input(text, cx);
14260 this.set_use_autoclose(use_autoclose);
14261 this.set_use_auto_surround(use_auto_surround);
14262
14263 if let Some(new_selected_range) = new_selected_range_utf16 {
14264 let snapshot = this.buffer.read(cx).read(cx);
14265 let new_selected_ranges = marked_ranges
14266 .into_iter()
14267 .map(|marked_range| {
14268 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14269 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14270 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14271 snapshot.clip_offset_utf16(new_start, Bias::Left)
14272 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14273 })
14274 .collect::<Vec<_>>();
14275
14276 drop(snapshot);
14277 this.change_selections(None, cx, |selections| {
14278 selections.select_ranges(new_selected_ranges)
14279 });
14280 }
14281 });
14282
14283 self.ime_transaction = self.ime_transaction.or(transaction);
14284 if let Some(transaction) = self.ime_transaction {
14285 self.buffer.update(cx, |buffer, cx| {
14286 buffer.group_until_transaction(transaction, cx);
14287 });
14288 }
14289
14290 if self.text_highlights::<InputComposition>(cx).is_none() {
14291 self.ime_transaction.take();
14292 }
14293 }
14294
14295 fn bounds_for_range(
14296 &mut self,
14297 range_utf16: Range<usize>,
14298 element_bounds: gpui::Bounds<Pixels>,
14299 cx: &mut ViewContext<Self>,
14300 ) -> Option<gpui::Bounds<Pixels>> {
14301 let text_layout_details = self.text_layout_details(cx);
14302 let gpui::Point {
14303 x: em_width,
14304 y: line_height,
14305 } = self.character_size(cx);
14306
14307 let snapshot = self.snapshot(cx);
14308 let scroll_position = snapshot.scroll_position();
14309 let scroll_left = scroll_position.x * em_width;
14310
14311 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14312 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14313 + self.gutter_dimensions.width
14314 + self.gutter_dimensions.margin;
14315 let y = line_height * (start.row().as_f32() - scroll_position.y);
14316
14317 Some(Bounds {
14318 origin: element_bounds.origin + point(x, y),
14319 size: size(em_width, line_height),
14320 })
14321 }
14322}
14323
14324trait SelectionExt {
14325 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14326 fn spanned_rows(
14327 &self,
14328 include_end_if_at_line_start: bool,
14329 map: &DisplaySnapshot,
14330 ) -> Range<MultiBufferRow>;
14331}
14332
14333impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14334 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14335 let start = self
14336 .start
14337 .to_point(&map.buffer_snapshot)
14338 .to_display_point(map);
14339 let end = self
14340 .end
14341 .to_point(&map.buffer_snapshot)
14342 .to_display_point(map);
14343 if self.reversed {
14344 end..start
14345 } else {
14346 start..end
14347 }
14348 }
14349
14350 fn spanned_rows(
14351 &self,
14352 include_end_if_at_line_start: bool,
14353 map: &DisplaySnapshot,
14354 ) -> Range<MultiBufferRow> {
14355 let start = self.start.to_point(&map.buffer_snapshot);
14356 let mut end = self.end.to_point(&map.buffer_snapshot);
14357 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14358 end.row -= 1;
14359 }
14360
14361 let buffer_start = map.prev_line_boundary(start).0;
14362 let buffer_end = map.next_line_boundary(end).0;
14363 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14364 }
14365}
14366
14367impl<T: InvalidationRegion> InvalidationStack<T> {
14368 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14369 where
14370 S: Clone + ToOffset,
14371 {
14372 while let Some(region) = self.last() {
14373 let all_selections_inside_invalidation_ranges =
14374 if selections.len() == region.ranges().len() {
14375 selections
14376 .iter()
14377 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14378 .all(|(selection, invalidation_range)| {
14379 let head = selection.head().to_offset(buffer);
14380 invalidation_range.start <= head && invalidation_range.end >= head
14381 })
14382 } else {
14383 false
14384 };
14385
14386 if all_selections_inside_invalidation_ranges {
14387 break;
14388 } else {
14389 self.pop();
14390 }
14391 }
14392 }
14393}
14394
14395impl<T> Default for InvalidationStack<T> {
14396 fn default() -> Self {
14397 Self(Default::default())
14398 }
14399}
14400
14401impl<T> Deref for InvalidationStack<T> {
14402 type Target = Vec<T>;
14403
14404 fn deref(&self) -> &Self::Target {
14405 &self.0
14406 }
14407}
14408
14409impl<T> DerefMut for InvalidationStack<T> {
14410 fn deref_mut(&mut self) -> &mut Self::Target {
14411 &mut self.0
14412 }
14413}
14414
14415impl InvalidationRegion for SnippetState {
14416 fn ranges(&self) -> &[Range<Anchor>] {
14417 &self.ranges[self.active_index]
14418 }
14419}
14420
14421pub fn diagnostic_block_renderer(
14422 diagnostic: Diagnostic,
14423 max_message_rows: Option<u8>,
14424 allow_closing: bool,
14425 _is_valid: bool,
14426) -> RenderBlock {
14427 let (text_without_backticks, code_ranges) =
14428 highlight_diagnostic_message(&diagnostic, max_message_rows);
14429
14430 Arc::new(move |cx: &mut BlockContext| {
14431 let group_id: SharedString = cx.block_id.to_string().into();
14432
14433 let mut text_style = cx.text_style().clone();
14434 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14435 let theme_settings = ThemeSettings::get_global(cx);
14436 text_style.font_family = theme_settings.buffer_font.family.clone();
14437 text_style.font_style = theme_settings.buffer_font.style;
14438 text_style.font_features = theme_settings.buffer_font.features.clone();
14439 text_style.font_weight = theme_settings.buffer_font.weight;
14440
14441 let multi_line_diagnostic = diagnostic.message.contains('\n');
14442
14443 let buttons = |diagnostic: &Diagnostic| {
14444 if multi_line_diagnostic {
14445 v_flex()
14446 } else {
14447 h_flex()
14448 }
14449 .when(allow_closing, |div| {
14450 div.children(diagnostic.is_primary.then(|| {
14451 IconButton::new("close-block", IconName::XCircle)
14452 .icon_color(Color::Muted)
14453 .size(ButtonSize::Compact)
14454 .style(ButtonStyle::Transparent)
14455 .visible_on_hover(group_id.clone())
14456 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14457 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14458 }))
14459 })
14460 .child(
14461 IconButton::new("copy-block", IconName::Copy)
14462 .icon_color(Color::Muted)
14463 .size(ButtonSize::Compact)
14464 .style(ButtonStyle::Transparent)
14465 .visible_on_hover(group_id.clone())
14466 .on_click({
14467 let message = diagnostic.message.clone();
14468 move |_click, cx| {
14469 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14470 }
14471 })
14472 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14473 )
14474 };
14475
14476 let icon_size = buttons(&diagnostic)
14477 .into_any_element()
14478 .layout_as_root(AvailableSpace::min_size(), cx);
14479
14480 h_flex()
14481 .id(cx.block_id)
14482 .group(group_id.clone())
14483 .relative()
14484 .size_full()
14485 .block_mouse_down()
14486 .pl(cx.gutter_dimensions.width)
14487 .w(cx.max_width - cx.gutter_dimensions.full_width())
14488 .child(
14489 div()
14490 .flex()
14491 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14492 .flex_shrink(),
14493 )
14494 .child(buttons(&diagnostic))
14495 .child(div().flex().flex_shrink_0().child(
14496 StyledText::new(text_without_backticks.clone()).with_highlights(
14497 &text_style,
14498 code_ranges.iter().map(|range| {
14499 (
14500 range.clone(),
14501 HighlightStyle {
14502 font_weight: Some(FontWeight::BOLD),
14503 ..Default::default()
14504 },
14505 )
14506 }),
14507 ),
14508 ))
14509 .into_any_element()
14510 })
14511}
14512
14513pub fn highlight_diagnostic_message(
14514 diagnostic: &Diagnostic,
14515 mut max_message_rows: Option<u8>,
14516) -> (SharedString, Vec<Range<usize>>) {
14517 let mut text_without_backticks = String::new();
14518 let mut code_ranges = Vec::new();
14519
14520 if let Some(source) = &diagnostic.source {
14521 text_without_backticks.push_str(source);
14522 code_ranges.push(0..source.len());
14523 text_without_backticks.push_str(": ");
14524 }
14525
14526 let mut prev_offset = 0;
14527 let mut in_code_block = false;
14528 let has_row_limit = max_message_rows.is_some();
14529 let mut newline_indices = diagnostic
14530 .message
14531 .match_indices('\n')
14532 .filter(|_| has_row_limit)
14533 .map(|(ix, _)| ix)
14534 .fuse()
14535 .peekable();
14536
14537 for (quote_ix, _) in diagnostic
14538 .message
14539 .match_indices('`')
14540 .chain([(diagnostic.message.len(), "")])
14541 {
14542 let mut first_newline_ix = None;
14543 let mut last_newline_ix = None;
14544 while let Some(newline_ix) = newline_indices.peek() {
14545 if *newline_ix < quote_ix {
14546 if first_newline_ix.is_none() {
14547 first_newline_ix = Some(*newline_ix);
14548 }
14549 last_newline_ix = Some(*newline_ix);
14550
14551 if let Some(rows_left) = &mut max_message_rows {
14552 if *rows_left == 0 {
14553 break;
14554 } else {
14555 *rows_left -= 1;
14556 }
14557 }
14558 let _ = newline_indices.next();
14559 } else {
14560 break;
14561 }
14562 }
14563 let prev_len = text_without_backticks.len();
14564 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14565 text_without_backticks.push_str(new_text);
14566 if in_code_block {
14567 code_ranges.push(prev_len..text_without_backticks.len());
14568 }
14569 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14570 in_code_block = !in_code_block;
14571 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14572 text_without_backticks.push_str("...");
14573 break;
14574 }
14575 }
14576
14577 (text_without_backticks.into(), code_ranges)
14578}
14579
14580fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14581 match severity {
14582 DiagnosticSeverity::ERROR => colors.error,
14583 DiagnosticSeverity::WARNING => colors.warning,
14584 DiagnosticSeverity::INFORMATION => colors.info,
14585 DiagnosticSeverity::HINT => colors.info,
14586 _ => colors.ignored,
14587 }
14588}
14589
14590pub fn styled_runs_for_code_label<'a>(
14591 label: &'a CodeLabel,
14592 syntax_theme: &'a theme::SyntaxTheme,
14593) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14594 let fade_out = HighlightStyle {
14595 fade_out: Some(0.35),
14596 ..Default::default()
14597 };
14598
14599 let mut prev_end = label.filter_range.end;
14600 label
14601 .runs
14602 .iter()
14603 .enumerate()
14604 .flat_map(move |(ix, (range, highlight_id))| {
14605 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14606 style
14607 } else {
14608 return Default::default();
14609 };
14610 let mut muted_style = style;
14611 muted_style.highlight(fade_out);
14612
14613 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14614 if range.start >= label.filter_range.end {
14615 if range.start > prev_end {
14616 runs.push((prev_end..range.start, fade_out));
14617 }
14618 runs.push((range.clone(), muted_style));
14619 } else if range.end <= label.filter_range.end {
14620 runs.push((range.clone(), style));
14621 } else {
14622 runs.push((range.start..label.filter_range.end, style));
14623 runs.push((label.filter_range.end..range.end, muted_style));
14624 }
14625 prev_end = cmp::max(prev_end, range.end);
14626
14627 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14628 runs.push((prev_end..label.text.len(), fade_out));
14629 }
14630
14631 runs
14632 })
14633}
14634
14635pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14636 let mut prev_index = 0;
14637 let mut prev_codepoint: Option<char> = None;
14638 text.char_indices()
14639 .chain([(text.len(), '\0')])
14640 .filter_map(move |(index, codepoint)| {
14641 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14642 let is_boundary = index == text.len()
14643 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14644 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14645 if is_boundary {
14646 let chunk = &text[prev_index..index];
14647 prev_index = index;
14648 Some(chunk)
14649 } else {
14650 None
14651 }
14652 })
14653}
14654
14655pub trait RangeToAnchorExt: Sized {
14656 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14657
14658 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14659 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14660 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14661 }
14662}
14663
14664impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14665 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14666 let start_offset = self.start.to_offset(snapshot);
14667 let end_offset = self.end.to_offset(snapshot);
14668 if start_offset == end_offset {
14669 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14670 } else {
14671 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14672 }
14673 }
14674}
14675
14676pub trait RowExt {
14677 fn as_f32(&self) -> f32;
14678
14679 fn next_row(&self) -> Self;
14680
14681 fn previous_row(&self) -> Self;
14682
14683 fn minus(&self, other: Self) -> u32;
14684}
14685
14686impl RowExt for DisplayRow {
14687 fn as_f32(&self) -> f32 {
14688 self.0 as f32
14689 }
14690
14691 fn next_row(&self) -> Self {
14692 Self(self.0 + 1)
14693 }
14694
14695 fn previous_row(&self) -> Self {
14696 Self(self.0.saturating_sub(1))
14697 }
14698
14699 fn minus(&self, other: Self) -> u32 {
14700 self.0 - other.0
14701 }
14702}
14703
14704impl RowExt for MultiBufferRow {
14705 fn as_f32(&self) -> f32 {
14706 self.0 as f32
14707 }
14708
14709 fn next_row(&self) -> Self {
14710 Self(self.0 + 1)
14711 }
14712
14713 fn previous_row(&self) -> Self {
14714 Self(self.0.saturating_sub(1))
14715 }
14716
14717 fn minus(&self, other: Self) -> u32 {
14718 self.0 - other.0
14719 }
14720}
14721
14722trait RowRangeExt {
14723 type Row;
14724
14725 fn len(&self) -> usize;
14726
14727 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14728}
14729
14730impl RowRangeExt for Range<MultiBufferRow> {
14731 type Row = MultiBufferRow;
14732
14733 fn len(&self) -> usize {
14734 (self.end.0 - self.start.0) as usize
14735 }
14736
14737 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14738 (self.start.0..self.end.0).map(MultiBufferRow)
14739 }
14740}
14741
14742impl RowRangeExt for Range<DisplayRow> {
14743 type Row = DisplayRow;
14744
14745 fn len(&self) -> usize {
14746 (self.end.0 - self.start.0) as usize
14747 }
14748
14749 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14750 (self.start.0..self.end.0).map(DisplayRow)
14751 }
14752}
14753
14754fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14755 if hunk.diff_base_byte_range.is_empty() {
14756 DiffHunkStatus::Added
14757 } else if hunk.row_range.is_empty() {
14758 DiffHunkStatus::Removed
14759 } else {
14760 DiffHunkStatus::Modified
14761 }
14762}
14763
14764/// If select range has more than one line, we
14765/// just point the cursor to range.start.
14766fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14767 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14768 range
14769 } else {
14770 range.start..range.start
14771 }
14772}
14773
14774pub struct KillRing(ClipboardItem);
14775impl Global for KillRing {}
14776
14777const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);