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(), 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 match self.context_menu.borrow().as_ref() {
1386 Some(CodeContextMenu::Completions(_)) => {
1387 key_context.add("menu");
1388 key_context.add("showing_completions")
1389 }
1390 Some(CodeContextMenu::CodeActions(_)) => {
1391 key_context.add("menu");
1392 key_context.add("showing_code_actions")
1393 }
1394 None => {}
1395 }
1396
1397 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
1398 if !self.focus_handle(cx).contains_focused(cx)
1399 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
1400 {
1401 for addon in self.addons.values() {
1402 addon.extend_key_context(&mut key_context, cx)
1403 }
1404 }
1405
1406 if let Some(extension) = self
1407 .buffer
1408 .read(cx)
1409 .as_singleton()
1410 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1411 {
1412 key_context.set("extension", extension.to_string());
1413 }
1414
1415 if self.has_active_inline_completion() {
1416 key_context.add("copilot_suggestion");
1417 key_context.add("inline_completion");
1418 }
1419
1420 if !self
1421 .selections
1422 .disjoint
1423 .iter()
1424 .all(|selection| selection.start == selection.end)
1425 {
1426 key_context.add("selection");
1427 }
1428
1429 key_context
1430 }
1431
1432 pub fn new_file(
1433 workspace: &mut Workspace,
1434 _: &workspace::NewFile,
1435 cx: &mut ViewContext<Workspace>,
1436 ) {
1437 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
1438 "Failed to create buffer",
1439 cx,
1440 |e, _| match e.error_code() {
1441 ErrorCode::RemoteUpgradeRequired => Some(format!(
1442 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1443 e.error_tag("required").unwrap_or("the latest version")
1444 )),
1445 _ => None,
1446 },
1447 );
1448 }
1449
1450 pub fn new_in_workspace(
1451 workspace: &mut Workspace,
1452 cx: &mut ViewContext<Workspace>,
1453 ) -> Task<Result<View<Editor>>> {
1454 let project = workspace.project().clone();
1455 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1456
1457 cx.spawn(|workspace, mut cx| async move {
1458 let buffer = create.await?;
1459 workspace.update(&mut cx, |workspace, cx| {
1460 let editor =
1461 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
1462 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
1463 editor
1464 })
1465 })
1466 }
1467
1468 fn new_file_vertical(
1469 workspace: &mut Workspace,
1470 _: &workspace::NewFileSplitVertical,
1471 cx: &mut ViewContext<Workspace>,
1472 ) {
1473 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
1474 }
1475
1476 fn new_file_horizontal(
1477 workspace: &mut Workspace,
1478 _: &workspace::NewFileSplitHorizontal,
1479 cx: &mut ViewContext<Workspace>,
1480 ) {
1481 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
1482 }
1483
1484 fn new_file_in_direction(
1485 workspace: &mut Workspace,
1486 direction: SplitDirection,
1487 cx: &mut ViewContext<Workspace>,
1488 ) {
1489 let project = workspace.project().clone();
1490 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1491
1492 cx.spawn(|workspace, mut cx| async move {
1493 let buffer = create.await?;
1494 workspace.update(&mut cx, move |workspace, cx| {
1495 workspace.split_item(
1496 direction,
1497 Box::new(
1498 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1499 ),
1500 cx,
1501 )
1502 })?;
1503 anyhow::Ok(())
1504 })
1505 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1506 ErrorCode::RemoteUpgradeRequired => Some(format!(
1507 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1508 e.error_tag("required").unwrap_or("the latest version")
1509 )),
1510 _ => None,
1511 });
1512 }
1513
1514 pub fn leader_peer_id(&self) -> Option<PeerId> {
1515 self.leader_peer_id
1516 }
1517
1518 pub fn buffer(&self) -> &Model<MultiBuffer> {
1519 &self.buffer
1520 }
1521
1522 pub fn workspace(&self) -> Option<View<Workspace>> {
1523 self.workspace.as_ref()?.0.upgrade()
1524 }
1525
1526 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1527 self.buffer().read(cx).title(cx)
1528 }
1529
1530 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1531 let git_blame_gutter_max_author_length = self
1532 .render_git_blame_gutter(cx)
1533 .then(|| {
1534 if let Some(blame) = self.blame.as_ref() {
1535 let max_author_length =
1536 blame.update(cx, |blame, cx| blame.max_author_length(cx));
1537 Some(max_author_length)
1538 } else {
1539 None
1540 }
1541 })
1542 .flatten();
1543
1544 EditorSnapshot {
1545 mode: self.mode,
1546 show_gutter: self.show_gutter,
1547 show_line_numbers: self.show_line_numbers,
1548 show_git_diff_gutter: self.show_git_diff_gutter,
1549 show_code_actions: self.show_code_actions,
1550 show_runnables: self.show_runnables,
1551 git_blame_gutter_max_author_length,
1552 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1553 scroll_anchor: self.scroll_manager.anchor(),
1554 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1555 placeholder_text: self.placeholder_text.clone(),
1556 diff_map: self.diff_map.snapshot(),
1557 is_focused: self.focus_handle.is_focused(cx),
1558 current_line_highlight: self
1559 .current_line_highlight
1560 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
1561 gutter_hovered: self.gutter_hovered,
1562 }
1563 }
1564
1565 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1566 self.buffer.read(cx).language_at(point, cx)
1567 }
1568
1569 pub fn file_at<T: ToOffset>(
1570 &self,
1571 point: T,
1572 cx: &AppContext,
1573 ) -> Option<Arc<dyn language::File>> {
1574 self.buffer.read(cx).read(cx).file_at(point).cloned()
1575 }
1576
1577 pub fn active_excerpt(
1578 &self,
1579 cx: &AppContext,
1580 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1581 self.buffer
1582 .read(cx)
1583 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1584 }
1585
1586 pub fn mode(&self) -> EditorMode {
1587 self.mode
1588 }
1589
1590 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1591 self.collaboration_hub.as_deref()
1592 }
1593
1594 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1595 self.collaboration_hub = Some(hub);
1596 }
1597
1598 pub fn set_custom_context_menu(
1599 &mut self,
1600 f: impl 'static
1601 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1602 ) {
1603 self.custom_context_menu = Some(Box::new(f))
1604 }
1605
1606 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
1607 self.completion_provider = provider;
1608 }
1609
1610 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
1611 self.semantics_provider.clone()
1612 }
1613
1614 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
1615 self.semantics_provider = provider;
1616 }
1617
1618 pub fn set_inline_completion_provider<T>(
1619 &mut self,
1620 provider: Option<Model<T>>,
1621 cx: &mut ViewContext<Self>,
1622 ) where
1623 T: InlineCompletionProvider,
1624 {
1625 self.inline_completion_provider =
1626 provider.map(|provider| RegisteredInlineCompletionProvider {
1627 _subscription: cx.observe(&provider, |this, _, cx| {
1628 if this.focus_handle.is_focused(cx) {
1629 this.update_visible_inline_completion(cx);
1630 }
1631 }),
1632 provider: Arc::new(provider),
1633 });
1634 self.refresh_inline_completion(false, false, cx);
1635 }
1636
1637 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
1638 self.placeholder_text.as_deref()
1639 }
1640
1641 pub fn set_placeholder_text(
1642 &mut self,
1643 placeholder_text: impl Into<Arc<str>>,
1644 cx: &mut ViewContext<Self>,
1645 ) {
1646 let placeholder_text = Some(placeholder_text.into());
1647 if self.placeholder_text != placeholder_text {
1648 self.placeholder_text = placeholder_text;
1649 cx.notify();
1650 }
1651 }
1652
1653 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1654 self.cursor_shape = cursor_shape;
1655
1656 // Disrupt blink for immediate user feedback that the cursor shape has changed
1657 self.blink_manager.update(cx, BlinkManager::show_cursor);
1658
1659 cx.notify();
1660 }
1661
1662 pub fn set_current_line_highlight(
1663 &mut self,
1664 current_line_highlight: Option<CurrentLineHighlight>,
1665 ) {
1666 self.current_line_highlight = current_line_highlight;
1667 }
1668
1669 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1670 self.collapse_matches = collapse_matches;
1671 }
1672
1673 pub fn register_buffers_with_language_servers(&mut self, cx: &mut ViewContext<Self>) {
1674 let buffers = self.buffer.read(cx).all_buffers();
1675 let Some(lsp_store) = self.lsp_store(cx) else {
1676 return;
1677 };
1678 lsp_store.update(cx, |lsp_store, cx| {
1679 for buffer in buffers {
1680 self.registered_buffers
1681 .entry(buffer.read(cx).remote_id())
1682 .or_insert_with(|| {
1683 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1684 });
1685 }
1686 })
1687 }
1688
1689 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1690 if self.collapse_matches {
1691 return range.start..range.start;
1692 }
1693 range.clone()
1694 }
1695
1696 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1697 if self.display_map.read(cx).clip_at_line_ends != clip {
1698 self.display_map
1699 .update(cx, |map, _| map.clip_at_line_ends = clip);
1700 }
1701 }
1702
1703 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1704 self.input_enabled = input_enabled;
1705 }
1706
1707 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
1708 self.enable_inline_completions = enabled;
1709 }
1710
1711 pub fn set_autoindent(&mut self, autoindent: bool) {
1712 if autoindent {
1713 self.autoindent_mode = Some(AutoindentMode::EachLine);
1714 } else {
1715 self.autoindent_mode = None;
1716 }
1717 }
1718
1719 pub fn read_only(&self, cx: &AppContext) -> bool {
1720 self.read_only || self.buffer.read(cx).read_only()
1721 }
1722
1723 pub fn set_read_only(&mut self, read_only: bool) {
1724 self.read_only = read_only;
1725 }
1726
1727 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1728 self.use_autoclose = autoclose;
1729 }
1730
1731 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
1732 self.use_auto_surround = auto_surround;
1733 }
1734
1735 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1736 self.auto_replace_emoji_shortcode = auto_replace;
1737 }
1738
1739 pub fn toggle_inline_completions(
1740 &mut self,
1741 _: &ToggleInlineCompletions,
1742 cx: &mut ViewContext<Self>,
1743 ) {
1744 if self.show_inline_completions_override.is_some() {
1745 self.set_show_inline_completions(None, cx);
1746 } else {
1747 let cursor = self.selections.newest_anchor().head();
1748 if let Some((buffer, cursor_buffer_position)) =
1749 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1750 {
1751 let show_inline_completions =
1752 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
1753 self.set_show_inline_completions(Some(show_inline_completions), cx);
1754 }
1755 }
1756 }
1757
1758 pub fn set_show_inline_completions(
1759 &mut self,
1760 show_inline_completions: Option<bool>,
1761 cx: &mut ViewContext<Self>,
1762 ) {
1763 self.show_inline_completions_override = show_inline_completions;
1764 self.refresh_inline_completion(false, true, cx);
1765 }
1766
1767 fn should_show_inline_completions(
1768 &self,
1769 buffer: &Model<Buffer>,
1770 buffer_position: language::Anchor,
1771 cx: &AppContext,
1772 ) -> bool {
1773 if !self.snippet_stack.is_empty() {
1774 return false;
1775 }
1776
1777 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
1778 return false;
1779 }
1780
1781 if let Some(provider) = self.inline_completion_provider() {
1782 if let Some(show_inline_completions) = self.show_inline_completions_override {
1783 show_inline_completions
1784 } else {
1785 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
1786 }
1787 } else {
1788 false
1789 }
1790 }
1791
1792 fn inline_completions_disabled_in_scope(
1793 &self,
1794 buffer: &Model<Buffer>,
1795 buffer_position: language::Anchor,
1796 cx: &AppContext,
1797 ) -> bool {
1798 let snapshot = buffer.read(cx).snapshot();
1799 let settings = snapshot.settings_at(buffer_position, cx);
1800
1801 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
1802 return false;
1803 };
1804
1805 scope.override_name().map_or(false, |scope_name| {
1806 settings
1807 .inline_completions_disabled_in
1808 .iter()
1809 .any(|s| s == scope_name)
1810 })
1811 }
1812
1813 pub fn set_use_modal_editing(&mut self, to: bool) {
1814 self.use_modal_editing = to;
1815 }
1816
1817 pub fn use_modal_editing(&self) -> bool {
1818 self.use_modal_editing
1819 }
1820
1821 fn selections_did_change(
1822 &mut self,
1823 local: bool,
1824 old_cursor_position: &Anchor,
1825 show_completions: bool,
1826 cx: &mut ViewContext<Self>,
1827 ) {
1828 cx.invalidate_character_coordinates();
1829
1830 // Copy selections to primary selection buffer
1831 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1832 if local {
1833 let selections = self.selections.all::<usize>(cx);
1834 let buffer_handle = self.buffer.read(cx).read(cx);
1835
1836 let mut text = String::new();
1837 for (index, selection) in selections.iter().enumerate() {
1838 let text_for_selection = buffer_handle
1839 .text_for_range(selection.start..selection.end)
1840 .collect::<String>();
1841
1842 text.push_str(&text_for_selection);
1843 if index != selections.len() - 1 {
1844 text.push('\n');
1845 }
1846 }
1847
1848 if !text.is_empty() {
1849 cx.write_to_primary(ClipboardItem::new_string(text));
1850 }
1851 }
1852
1853 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1854 self.buffer.update(cx, |buffer, cx| {
1855 buffer.set_active_selections(
1856 &self.selections.disjoint_anchors(),
1857 self.selections.line_mode,
1858 self.cursor_shape,
1859 cx,
1860 )
1861 });
1862 }
1863 let display_map = self
1864 .display_map
1865 .update(cx, |display_map, cx| display_map.snapshot(cx));
1866 let buffer = &display_map.buffer_snapshot;
1867 self.add_selections_state = None;
1868 self.select_next_state = None;
1869 self.select_prev_state = None;
1870 self.select_larger_syntax_node_stack.clear();
1871 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1872 self.snippet_stack
1873 .invalidate(&self.selections.disjoint_anchors(), buffer);
1874 self.take_rename(false, cx);
1875
1876 let new_cursor_position = self.selections.newest_anchor().head();
1877
1878 self.push_to_nav_history(
1879 *old_cursor_position,
1880 Some(new_cursor_position.to_point(buffer)),
1881 cx,
1882 );
1883
1884 if local {
1885 let new_cursor_position = self.selections.newest_anchor().head();
1886 let mut context_menu = self.context_menu.borrow_mut();
1887 let completion_menu = match context_menu.as_ref() {
1888 Some(CodeContextMenu::Completions(menu)) => Some(menu),
1889 _ => {
1890 *context_menu = None;
1891 None
1892 }
1893 };
1894
1895 if let Some(completion_menu) = completion_menu {
1896 let cursor_position = new_cursor_position.to_offset(buffer);
1897 let (word_range, kind) =
1898 buffer.surrounding_word(completion_menu.initial_position, true);
1899 if kind == Some(CharKind::Word)
1900 && word_range.to_inclusive().contains(&cursor_position)
1901 {
1902 let mut completion_menu = completion_menu.clone();
1903 drop(context_menu);
1904
1905 let query = Self::completion_query(buffer, cursor_position);
1906 cx.spawn(move |this, mut cx| async move {
1907 completion_menu
1908 .filter(query.as_deref(), cx.background_executor().clone())
1909 .await;
1910
1911 this.update(&mut cx, |this, cx| {
1912 let mut context_menu = this.context_menu.borrow_mut();
1913 let Some(CodeContextMenu::Completions(menu)) = context_menu.as_ref()
1914 else {
1915 return;
1916 };
1917
1918 if menu.id > completion_menu.id {
1919 return;
1920 }
1921
1922 *context_menu = Some(CodeContextMenu::Completions(completion_menu));
1923 drop(context_menu);
1924 cx.notify();
1925 })
1926 })
1927 .detach();
1928
1929 if show_completions {
1930 self.show_completions(&ShowCompletions { trigger: None }, cx);
1931 }
1932 } else {
1933 drop(context_menu);
1934 self.hide_context_menu(cx);
1935 }
1936 } else {
1937 drop(context_menu);
1938 }
1939
1940 hide_hover(self, cx);
1941
1942 if old_cursor_position.to_display_point(&display_map).row()
1943 != new_cursor_position.to_display_point(&display_map).row()
1944 {
1945 self.available_code_actions.take();
1946 }
1947 self.refresh_code_actions(cx);
1948 self.refresh_document_highlights(cx);
1949 refresh_matching_bracket_highlights(self, cx);
1950 self.update_visible_inline_completion(cx);
1951 linked_editing_ranges::refresh_linked_ranges(self, cx);
1952 if self.git_blame_inline_enabled {
1953 self.start_inline_blame_timer(cx);
1954 }
1955 }
1956
1957 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1958 cx.emit(EditorEvent::SelectionsChanged { local });
1959
1960 if self.selections.disjoint_anchors().len() == 1 {
1961 cx.emit(SearchEvent::ActiveMatchChanged)
1962 }
1963 cx.notify();
1964 }
1965
1966 pub fn change_selections<R>(
1967 &mut self,
1968 autoscroll: Option<Autoscroll>,
1969 cx: &mut ViewContext<Self>,
1970 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1971 ) -> R {
1972 self.change_selections_inner(autoscroll, true, cx, change)
1973 }
1974
1975 pub fn change_selections_inner<R>(
1976 &mut self,
1977 autoscroll: Option<Autoscroll>,
1978 request_completions: bool,
1979 cx: &mut ViewContext<Self>,
1980 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1981 ) -> R {
1982 let old_cursor_position = self.selections.newest_anchor().head();
1983 self.push_to_selection_history();
1984
1985 let (changed, result) = self.selections.change_with(cx, change);
1986
1987 if changed {
1988 if let Some(autoscroll) = autoscroll {
1989 self.request_autoscroll(autoscroll, cx);
1990 }
1991 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
1992
1993 if self.should_open_signature_help_automatically(
1994 &old_cursor_position,
1995 self.signature_help_state.backspace_pressed(),
1996 cx,
1997 ) {
1998 self.show_signature_help(&ShowSignatureHelp, cx);
1999 }
2000 self.signature_help_state.set_backspace_pressed(false);
2001 }
2002
2003 result
2004 }
2005
2006 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2007 where
2008 I: IntoIterator<Item = (Range<S>, T)>,
2009 S: ToOffset,
2010 T: Into<Arc<str>>,
2011 {
2012 if self.read_only(cx) {
2013 return;
2014 }
2015
2016 self.buffer
2017 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2018 }
2019
2020 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2021 where
2022 I: IntoIterator<Item = (Range<S>, T)>,
2023 S: ToOffset,
2024 T: Into<Arc<str>>,
2025 {
2026 if self.read_only(cx) {
2027 return;
2028 }
2029
2030 self.buffer.update(cx, |buffer, cx| {
2031 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2032 });
2033 }
2034
2035 pub fn edit_with_block_indent<I, S, T>(
2036 &mut self,
2037 edits: I,
2038 original_indent_columns: Vec<u32>,
2039 cx: &mut ViewContext<Self>,
2040 ) where
2041 I: IntoIterator<Item = (Range<S>, T)>,
2042 S: ToOffset,
2043 T: Into<Arc<str>>,
2044 {
2045 if self.read_only(cx) {
2046 return;
2047 }
2048
2049 self.buffer.update(cx, |buffer, cx| {
2050 buffer.edit(
2051 edits,
2052 Some(AutoindentMode::Block {
2053 original_indent_columns,
2054 }),
2055 cx,
2056 )
2057 });
2058 }
2059
2060 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2061 self.hide_context_menu(cx);
2062
2063 match phase {
2064 SelectPhase::Begin {
2065 position,
2066 add,
2067 click_count,
2068 } => self.begin_selection(position, add, click_count, cx),
2069 SelectPhase::BeginColumnar {
2070 position,
2071 goal_column,
2072 reset,
2073 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2074 SelectPhase::Extend {
2075 position,
2076 click_count,
2077 } => self.extend_selection(position, click_count, cx),
2078 SelectPhase::Update {
2079 position,
2080 goal_column,
2081 scroll_delta,
2082 } => self.update_selection(position, goal_column, scroll_delta, cx),
2083 SelectPhase::End => self.end_selection(cx),
2084 }
2085 }
2086
2087 fn extend_selection(
2088 &mut self,
2089 position: DisplayPoint,
2090 click_count: usize,
2091 cx: &mut ViewContext<Self>,
2092 ) {
2093 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2094 let tail = self.selections.newest::<usize>(cx).tail();
2095 self.begin_selection(position, false, click_count, cx);
2096
2097 let position = position.to_offset(&display_map, Bias::Left);
2098 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2099
2100 let mut pending_selection = self
2101 .selections
2102 .pending_anchor()
2103 .expect("extend_selection not called with pending selection");
2104 if position >= tail {
2105 pending_selection.start = tail_anchor;
2106 } else {
2107 pending_selection.end = tail_anchor;
2108 pending_selection.reversed = true;
2109 }
2110
2111 let mut pending_mode = self.selections.pending_mode().unwrap();
2112 match &mut pending_mode {
2113 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2114 _ => {}
2115 }
2116
2117 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2118 s.set_pending(pending_selection, pending_mode)
2119 });
2120 }
2121
2122 fn begin_selection(
2123 &mut self,
2124 position: DisplayPoint,
2125 add: bool,
2126 click_count: usize,
2127 cx: &mut ViewContext<Self>,
2128 ) {
2129 if !self.focus_handle.is_focused(cx) {
2130 self.last_focused_descendant = None;
2131 cx.focus(&self.focus_handle);
2132 }
2133
2134 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2135 let buffer = &display_map.buffer_snapshot;
2136 let newest_selection = self.selections.newest_anchor().clone();
2137 let position = display_map.clip_point(position, Bias::Left);
2138
2139 let start;
2140 let end;
2141 let mode;
2142 let mut auto_scroll;
2143 match click_count {
2144 1 => {
2145 start = buffer.anchor_before(position.to_point(&display_map));
2146 end = start;
2147 mode = SelectMode::Character;
2148 auto_scroll = true;
2149 }
2150 2 => {
2151 let range = movement::surrounding_word(&display_map, position);
2152 start = buffer.anchor_before(range.start.to_point(&display_map));
2153 end = buffer.anchor_before(range.end.to_point(&display_map));
2154 mode = SelectMode::Word(start..end);
2155 auto_scroll = true;
2156 }
2157 3 => {
2158 let position = display_map
2159 .clip_point(position, Bias::Left)
2160 .to_point(&display_map);
2161 let line_start = display_map.prev_line_boundary(position).0;
2162 let next_line_start = buffer.clip_point(
2163 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2164 Bias::Left,
2165 );
2166 start = buffer.anchor_before(line_start);
2167 end = buffer.anchor_before(next_line_start);
2168 mode = SelectMode::Line(start..end);
2169 auto_scroll = true;
2170 }
2171 _ => {
2172 start = buffer.anchor_before(0);
2173 end = buffer.anchor_before(buffer.len());
2174 mode = SelectMode::All;
2175 auto_scroll = false;
2176 }
2177 }
2178 auto_scroll &= EditorSettings::get_global(cx).autoscroll_on_clicks;
2179
2180 let point_to_delete: Option<usize> = {
2181 let selected_points: Vec<Selection<Point>> =
2182 self.selections.disjoint_in_range(start..end, cx);
2183
2184 if !add || click_count > 1 {
2185 None
2186 } else if !selected_points.is_empty() {
2187 Some(selected_points[0].id)
2188 } else {
2189 let clicked_point_already_selected =
2190 self.selections.disjoint.iter().find(|selection| {
2191 selection.start.to_point(buffer) == start.to_point(buffer)
2192 || selection.end.to_point(buffer) == end.to_point(buffer)
2193 });
2194
2195 clicked_point_already_selected.map(|selection| selection.id)
2196 }
2197 };
2198
2199 let selections_count = self.selections.count();
2200
2201 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2202 if let Some(point_to_delete) = point_to_delete {
2203 s.delete(point_to_delete);
2204
2205 if selections_count == 1 {
2206 s.set_pending_anchor_range(start..end, mode);
2207 }
2208 } else {
2209 if !add {
2210 s.clear_disjoint();
2211 } else if click_count > 1 {
2212 s.delete(newest_selection.id)
2213 }
2214
2215 s.set_pending_anchor_range(start..end, mode);
2216 }
2217 });
2218 }
2219
2220 fn begin_columnar_selection(
2221 &mut self,
2222 position: DisplayPoint,
2223 goal_column: u32,
2224 reset: bool,
2225 cx: &mut ViewContext<Self>,
2226 ) {
2227 if !self.focus_handle.is_focused(cx) {
2228 self.last_focused_descendant = None;
2229 cx.focus(&self.focus_handle);
2230 }
2231
2232 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2233
2234 if reset {
2235 let pointer_position = display_map
2236 .buffer_snapshot
2237 .anchor_before(position.to_point(&display_map));
2238
2239 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2240 s.clear_disjoint();
2241 s.set_pending_anchor_range(
2242 pointer_position..pointer_position,
2243 SelectMode::Character,
2244 );
2245 });
2246 }
2247
2248 let tail = self.selections.newest::<Point>(cx).tail();
2249 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2250
2251 if !reset {
2252 self.select_columns(
2253 tail.to_display_point(&display_map),
2254 position,
2255 goal_column,
2256 &display_map,
2257 cx,
2258 );
2259 }
2260 }
2261
2262 fn update_selection(
2263 &mut self,
2264 position: DisplayPoint,
2265 goal_column: u32,
2266 scroll_delta: gpui::Point<f32>,
2267 cx: &mut ViewContext<Self>,
2268 ) {
2269 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2270
2271 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2272 let tail = tail.to_display_point(&display_map);
2273 self.select_columns(tail, position, goal_column, &display_map, cx);
2274 } else if let Some(mut pending) = self.selections.pending_anchor() {
2275 let buffer = self.buffer.read(cx).snapshot(cx);
2276 let head;
2277 let tail;
2278 let mode = self.selections.pending_mode().unwrap();
2279 match &mode {
2280 SelectMode::Character => {
2281 head = position.to_point(&display_map);
2282 tail = pending.tail().to_point(&buffer);
2283 }
2284 SelectMode::Word(original_range) => {
2285 let original_display_range = original_range.start.to_display_point(&display_map)
2286 ..original_range.end.to_display_point(&display_map);
2287 let original_buffer_range = original_display_range.start.to_point(&display_map)
2288 ..original_display_range.end.to_point(&display_map);
2289 if movement::is_inside_word(&display_map, position)
2290 || original_display_range.contains(&position)
2291 {
2292 let word_range = movement::surrounding_word(&display_map, position);
2293 if word_range.start < original_display_range.start {
2294 head = word_range.start.to_point(&display_map);
2295 } else {
2296 head = word_range.end.to_point(&display_map);
2297 }
2298 } else {
2299 head = position.to_point(&display_map);
2300 }
2301
2302 if head <= original_buffer_range.start {
2303 tail = original_buffer_range.end;
2304 } else {
2305 tail = original_buffer_range.start;
2306 }
2307 }
2308 SelectMode::Line(original_range) => {
2309 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2310
2311 let position = display_map
2312 .clip_point(position, Bias::Left)
2313 .to_point(&display_map);
2314 let line_start = display_map.prev_line_boundary(position).0;
2315 let next_line_start = buffer.clip_point(
2316 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2317 Bias::Left,
2318 );
2319
2320 if line_start < original_range.start {
2321 head = line_start
2322 } else {
2323 head = next_line_start
2324 }
2325
2326 if head <= original_range.start {
2327 tail = original_range.end;
2328 } else {
2329 tail = original_range.start;
2330 }
2331 }
2332 SelectMode::All => {
2333 return;
2334 }
2335 };
2336
2337 if head < tail {
2338 pending.start = buffer.anchor_before(head);
2339 pending.end = buffer.anchor_before(tail);
2340 pending.reversed = true;
2341 } else {
2342 pending.start = buffer.anchor_before(tail);
2343 pending.end = buffer.anchor_before(head);
2344 pending.reversed = false;
2345 }
2346
2347 self.change_selections(None, cx, |s| {
2348 s.set_pending(pending, mode);
2349 });
2350 } else {
2351 log::error!("update_selection dispatched with no pending selection");
2352 return;
2353 }
2354
2355 self.apply_scroll_delta(scroll_delta, cx);
2356 cx.notify();
2357 }
2358
2359 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2360 self.columnar_selection_tail.take();
2361 if self.selections.pending_anchor().is_some() {
2362 let selections = self.selections.all::<usize>(cx);
2363 self.change_selections(None, cx, |s| {
2364 s.select(selections);
2365 s.clear_pending();
2366 });
2367 }
2368 }
2369
2370 fn select_columns(
2371 &mut self,
2372 tail: DisplayPoint,
2373 head: DisplayPoint,
2374 goal_column: u32,
2375 display_map: &DisplaySnapshot,
2376 cx: &mut ViewContext<Self>,
2377 ) {
2378 let start_row = cmp::min(tail.row(), head.row());
2379 let end_row = cmp::max(tail.row(), head.row());
2380 let start_column = cmp::min(tail.column(), goal_column);
2381 let end_column = cmp::max(tail.column(), goal_column);
2382 let reversed = start_column < tail.column();
2383
2384 let selection_ranges = (start_row.0..=end_row.0)
2385 .map(DisplayRow)
2386 .filter_map(|row| {
2387 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2388 let start = display_map
2389 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2390 .to_point(display_map);
2391 let end = display_map
2392 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2393 .to_point(display_map);
2394 if reversed {
2395 Some(end..start)
2396 } else {
2397 Some(start..end)
2398 }
2399 } else {
2400 None
2401 }
2402 })
2403 .collect::<Vec<_>>();
2404
2405 self.change_selections(None, cx, |s| {
2406 s.select_ranges(selection_ranges);
2407 });
2408 cx.notify();
2409 }
2410
2411 pub fn has_pending_nonempty_selection(&self) -> bool {
2412 let pending_nonempty_selection = match self.selections.pending_anchor() {
2413 Some(Selection { start, end, .. }) => start != end,
2414 None => false,
2415 };
2416
2417 pending_nonempty_selection
2418 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2419 }
2420
2421 pub fn has_pending_selection(&self) -> bool {
2422 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2423 }
2424
2425 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2426 if self.clear_expanded_diff_hunks(cx) {
2427 cx.notify();
2428 return;
2429 }
2430 if self.dismiss_menus_and_popups(true, cx) {
2431 return;
2432 }
2433
2434 if self.mode == EditorMode::Full
2435 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
2436 {
2437 return;
2438 }
2439
2440 cx.propagate();
2441 }
2442
2443 pub fn dismiss_menus_and_popups(
2444 &mut self,
2445 should_report_inline_completion_event: bool,
2446 cx: &mut ViewContext<Self>,
2447 ) -> bool {
2448 if self.take_rename(false, cx).is_some() {
2449 return true;
2450 }
2451
2452 if hide_hover(self, cx) {
2453 return true;
2454 }
2455
2456 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2457 return true;
2458 }
2459
2460 if self.hide_context_menu(cx).is_some() {
2461 return true;
2462 }
2463
2464 if self.mouse_context_menu.take().is_some() {
2465 return true;
2466 }
2467
2468 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2469 return true;
2470 }
2471
2472 if self.snippet_stack.pop().is_some() {
2473 return true;
2474 }
2475
2476 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
2477 self.dismiss_diagnostics(cx);
2478 return true;
2479 }
2480
2481 false
2482 }
2483
2484 fn linked_editing_ranges_for(
2485 &self,
2486 selection: Range<text::Anchor>,
2487 cx: &AppContext,
2488 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2489 if self.linked_edit_ranges.is_empty() {
2490 return None;
2491 }
2492 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2493 selection.end.buffer_id.and_then(|end_buffer_id| {
2494 if selection.start.buffer_id != Some(end_buffer_id) {
2495 return None;
2496 }
2497 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2498 let snapshot = buffer.read(cx).snapshot();
2499 self.linked_edit_ranges
2500 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2501 .map(|ranges| (ranges, snapshot, buffer))
2502 })?;
2503 use text::ToOffset as TO;
2504 // find offset from the start of current range to current cursor position
2505 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2506
2507 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2508 let start_difference = start_offset - start_byte_offset;
2509 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2510 let end_difference = end_offset - start_byte_offset;
2511 // Current range has associated linked ranges.
2512 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2513 for range in linked_ranges.iter() {
2514 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2515 let end_offset = start_offset + end_difference;
2516 let start_offset = start_offset + start_difference;
2517 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2518 continue;
2519 }
2520 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
2521 if s.start.buffer_id != selection.start.buffer_id
2522 || s.end.buffer_id != selection.end.buffer_id
2523 {
2524 return false;
2525 }
2526 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
2527 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
2528 }) {
2529 continue;
2530 }
2531 let start = buffer_snapshot.anchor_after(start_offset);
2532 let end = buffer_snapshot.anchor_after(end_offset);
2533 linked_edits
2534 .entry(buffer.clone())
2535 .or_default()
2536 .push(start..end);
2537 }
2538 Some(linked_edits)
2539 }
2540
2541 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2542 let text: Arc<str> = text.into();
2543
2544 if self.read_only(cx) {
2545 return;
2546 }
2547
2548 let selections = self.selections.all_adjusted(cx);
2549 let mut bracket_inserted = false;
2550 let mut edits = Vec::new();
2551 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2552 let mut new_selections = Vec::with_capacity(selections.len());
2553 let mut new_autoclose_regions = Vec::new();
2554 let snapshot = self.buffer.read(cx).read(cx);
2555
2556 for (selection, autoclose_region) in
2557 self.selections_with_autoclose_regions(selections, &snapshot)
2558 {
2559 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2560 // Determine if the inserted text matches the opening or closing
2561 // bracket of any of this language's bracket pairs.
2562 let mut bracket_pair = None;
2563 let mut is_bracket_pair_start = false;
2564 let mut is_bracket_pair_end = false;
2565 if !text.is_empty() {
2566 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2567 // and they are removing the character that triggered IME popup.
2568 for (pair, enabled) in scope.brackets() {
2569 if !pair.close && !pair.surround {
2570 continue;
2571 }
2572
2573 if enabled && pair.start.ends_with(text.as_ref()) {
2574 let prefix_len = pair.start.len() - text.len();
2575 let preceding_text_matches_prefix = prefix_len == 0
2576 || (selection.start.column >= (prefix_len as u32)
2577 && snapshot.contains_str_at(
2578 Point::new(
2579 selection.start.row,
2580 selection.start.column - (prefix_len as u32),
2581 ),
2582 &pair.start[..prefix_len],
2583 ));
2584 if preceding_text_matches_prefix {
2585 bracket_pair = Some(pair.clone());
2586 is_bracket_pair_start = true;
2587 break;
2588 }
2589 }
2590 if pair.end.as_str() == text.as_ref() {
2591 bracket_pair = Some(pair.clone());
2592 is_bracket_pair_end = true;
2593 break;
2594 }
2595 }
2596 }
2597
2598 if let Some(bracket_pair) = bracket_pair {
2599 let snapshot_settings = snapshot.settings_at(selection.start, cx);
2600 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
2601 let auto_surround =
2602 self.use_auto_surround && snapshot_settings.use_auto_surround;
2603 if selection.is_empty() {
2604 if is_bracket_pair_start {
2605 // If the inserted text is a suffix of an opening bracket and the
2606 // selection is preceded by the rest of the opening bracket, then
2607 // insert the closing bracket.
2608 let following_text_allows_autoclose = snapshot
2609 .chars_at(selection.start)
2610 .next()
2611 .map_or(true, |c| scope.should_autoclose_before(c));
2612
2613 let is_closing_quote = if bracket_pair.end == bracket_pair.start
2614 && bracket_pair.start.len() == 1
2615 {
2616 let target = bracket_pair.start.chars().next().unwrap();
2617 let current_line_count = snapshot
2618 .reversed_chars_at(selection.start)
2619 .take_while(|&c| c != '\n')
2620 .filter(|&c| c == target)
2621 .count();
2622 current_line_count % 2 == 1
2623 } else {
2624 false
2625 };
2626
2627 if autoclose
2628 && bracket_pair.close
2629 && following_text_allows_autoclose
2630 && !is_closing_quote
2631 {
2632 let anchor = snapshot.anchor_before(selection.end);
2633 new_selections.push((selection.map(|_| anchor), text.len()));
2634 new_autoclose_regions.push((
2635 anchor,
2636 text.len(),
2637 selection.id,
2638 bracket_pair.clone(),
2639 ));
2640 edits.push((
2641 selection.range(),
2642 format!("{}{}", text, bracket_pair.end).into(),
2643 ));
2644 bracket_inserted = true;
2645 continue;
2646 }
2647 }
2648
2649 if let Some(region) = autoclose_region {
2650 // If the selection is followed by an auto-inserted closing bracket,
2651 // then don't insert that closing bracket again; just move the selection
2652 // past the closing bracket.
2653 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2654 && text.as_ref() == region.pair.end.as_str();
2655 if should_skip {
2656 let anchor = snapshot.anchor_after(selection.end);
2657 new_selections
2658 .push((selection.map(|_| anchor), region.pair.end.len()));
2659 continue;
2660 }
2661 }
2662
2663 let always_treat_brackets_as_autoclosed = snapshot
2664 .settings_at(selection.start, cx)
2665 .always_treat_brackets_as_autoclosed;
2666 if always_treat_brackets_as_autoclosed
2667 && is_bracket_pair_end
2668 && snapshot.contains_str_at(selection.end, text.as_ref())
2669 {
2670 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2671 // and the inserted text is a closing bracket and the selection is followed
2672 // by the closing bracket then move the selection past the closing bracket.
2673 let anchor = snapshot.anchor_after(selection.end);
2674 new_selections.push((selection.map(|_| anchor), text.len()));
2675 continue;
2676 }
2677 }
2678 // If an opening bracket is 1 character long and is typed while
2679 // text is selected, then surround that text with the bracket pair.
2680 else if auto_surround
2681 && bracket_pair.surround
2682 && is_bracket_pair_start
2683 && bracket_pair.start.chars().count() == 1
2684 {
2685 edits.push((selection.start..selection.start, text.clone()));
2686 edits.push((
2687 selection.end..selection.end,
2688 bracket_pair.end.as_str().into(),
2689 ));
2690 bracket_inserted = true;
2691 new_selections.push((
2692 Selection {
2693 id: selection.id,
2694 start: snapshot.anchor_after(selection.start),
2695 end: snapshot.anchor_before(selection.end),
2696 reversed: selection.reversed,
2697 goal: selection.goal,
2698 },
2699 0,
2700 ));
2701 continue;
2702 }
2703 }
2704 }
2705
2706 if self.auto_replace_emoji_shortcode
2707 && selection.is_empty()
2708 && text.as_ref().ends_with(':')
2709 {
2710 if let Some(possible_emoji_short_code) =
2711 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2712 {
2713 if !possible_emoji_short_code.is_empty() {
2714 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2715 let emoji_shortcode_start = Point::new(
2716 selection.start.row,
2717 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2718 );
2719
2720 // Remove shortcode from buffer
2721 edits.push((
2722 emoji_shortcode_start..selection.start,
2723 "".to_string().into(),
2724 ));
2725 new_selections.push((
2726 Selection {
2727 id: selection.id,
2728 start: snapshot.anchor_after(emoji_shortcode_start),
2729 end: snapshot.anchor_before(selection.start),
2730 reversed: selection.reversed,
2731 goal: selection.goal,
2732 },
2733 0,
2734 ));
2735
2736 // Insert emoji
2737 let selection_start_anchor = snapshot.anchor_after(selection.start);
2738 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2739 edits.push((selection.start..selection.end, emoji.to_string().into()));
2740
2741 continue;
2742 }
2743 }
2744 }
2745 }
2746
2747 // If not handling any auto-close operation, then just replace the selected
2748 // text with the given input and move the selection to the end of the
2749 // newly inserted text.
2750 let anchor = snapshot.anchor_after(selection.end);
2751 if !self.linked_edit_ranges.is_empty() {
2752 let start_anchor = snapshot.anchor_before(selection.start);
2753
2754 let is_word_char = text.chars().next().map_or(true, |char| {
2755 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
2756 classifier.is_word(char)
2757 });
2758
2759 if is_word_char {
2760 if let Some(ranges) = self
2761 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
2762 {
2763 for (buffer, edits) in ranges {
2764 linked_edits
2765 .entry(buffer.clone())
2766 .or_default()
2767 .extend(edits.into_iter().map(|range| (range, text.clone())));
2768 }
2769 }
2770 }
2771 }
2772
2773 new_selections.push((selection.map(|_| anchor), 0));
2774 edits.push((selection.start..selection.end, text.clone()));
2775 }
2776
2777 drop(snapshot);
2778
2779 self.transact(cx, |this, cx| {
2780 this.buffer.update(cx, |buffer, cx| {
2781 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2782 });
2783 for (buffer, edits) in linked_edits {
2784 buffer.update(cx, |buffer, cx| {
2785 let snapshot = buffer.snapshot();
2786 let edits = edits
2787 .into_iter()
2788 .map(|(range, text)| {
2789 use text::ToPoint as TP;
2790 let end_point = TP::to_point(&range.end, &snapshot);
2791 let start_point = TP::to_point(&range.start, &snapshot);
2792 (start_point..end_point, text)
2793 })
2794 .sorted_by_key(|(range, _)| range.start)
2795 .collect::<Vec<_>>();
2796 buffer.edit(edits, None, cx);
2797 })
2798 }
2799 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2800 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2801 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
2802 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
2803 .zip(new_selection_deltas)
2804 .map(|(selection, delta)| Selection {
2805 id: selection.id,
2806 start: selection.start + delta,
2807 end: selection.end + delta,
2808 reversed: selection.reversed,
2809 goal: SelectionGoal::None,
2810 })
2811 .collect::<Vec<_>>();
2812
2813 let mut i = 0;
2814 for (position, delta, selection_id, pair) in new_autoclose_regions {
2815 let position = position.to_offset(&map.buffer_snapshot) + delta;
2816 let start = map.buffer_snapshot.anchor_before(position);
2817 let end = map.buffer_snapshot.anchor_after(position);
2818 while let Some(existing_state) = this.autoclose_regions.get(i) {
2819 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
2820 Ordering::Less => i += 1,
2821 Ordering::Greater => break,
2822 Ordering::Equal => {
2823 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
2824 Ordering::Less => i += 1,
2825 Ordering::Equal => break,
2826 Ordering::Greater => break,
2827 }
2828 }
2829 }
2830 }
2831 this.autoclose_regions.insert(
2832 i,
2833 AutocloseRegion {
2834 selection_id,
2835 range: start..end,
2836 pair,
2837 },
2838 );
2839 }
2840
2841 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
2842 s.select(new_selections)
2843 });
2844
2845 if !bracket_inserted {
2846 if let Some(on_type_format_task) =
2847 this.trigger_on_type_formatting(text.to_string(), cx)
2848 {
2849 on_type_format_task.detach_and_log_err(cx);
2850 }
2851 }
2852
2853 let editor_settings = EditorSettings::get_global(cx);
2854 if bracket_inserted
2855 && (editor_settings.auto_signature_help
2856 || editor_settings.show_signature_help_after_edits)
2857 {
2858 this.show_signature_help(&ShowSignatureHelp, cx);
2859 }
2860
2861 this.trigger_completion_on_input(&text, true, cx);
2862 linked_editing_ranges::refresh_linked_ranges(this, cx);
2863 this.refresh_inline_completion(true, false, cx);
2864 });
2865 }
2866
2867 fn find_possible_emoji_shortcode_at_position(
2868 snapshot: &MultiBufferSnapshot,
2869 position: Point,
2870 ) -> Option<String> {
2871 let mut chars = Vec::new();
2872 let mut found_colon = false;
2873 for char in snapshot.reversed_chars_at(position).take(100) {
2874 // Found a possible emoji shortcode in the middle of the buffer
2875 if found_colon {
2876 if char.is_whitespace() {
2877 chars.reverse();
2878 return Some(chars.iter().collect());
2879 }
2880 // If the previous character is not a whitespace, we are in the middle of a word
2881 // and we only want to complete the shortcode if the word is made up of other emojis
2882 let mut containing_word = String::new();
2883 for ch in snapshot
2884 .reversed_chars_at(position)
2885 .skip(chars.len() + 1)
2886 .take(100)
2887 {
2888 if ch.is_whitespace() {
2889 break;
2890 }
2891 containing_word.push(ch);
2892 }
2893 let containing_word = containing_word.chars().rev().collect::<String>();
2894 if util::word_consists_of_emojis(containing_word.as_str()) {
2895 chars.reverse();
2896 return Some(chars.iter().collect());
2897 }
2898 }
2899
2900 if char.is_whitespace() || !char.is_ascii() {
2901 return None;
2902 }
2903 if char == ':' {
2904 found_colon = true;
2905 } else {
2906 chars.push(char);
2907 }
2908 }
2909 // Found a possible emoji shortcode at the beginning of the buffer
2910 chars.reverse();
2911 Some(chars.iter().collect())
2912 }
2913
2914 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2915 self.transact(cx, |this, cx| {
2916 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2917 let selections = this.selections.all::<usize>(cx);
2918 let multi_buffer = this.buffer.read(cx);
2919 let buffer = multi_buffer.snapshot(cx);
2920 selections
2921 .iter()
2922 .map(|selection| {
2923 let start_point = selection.start.to_point(&buffer);
2924 let mut indent =
2925 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
2926 indent.len = cmp::min(indent.len, start_point.column);
2927 let start = selection.start;
2928 let end = selection.end;
2929 let selection_is_empty = start == end;
2930 let language_scope = buffer.language_scope_at(start);
2931 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2932 &language_scope
2933 {
2934 let leading_whitespace_len = buffer
2935 .reversed_chars_at(start)
2936 .take_while(|c| c.is_whitespace() && *c != '\n')
2937 .map(|c| c.len_utf8())
2938 .sum::<usize>();
2939
2940 let trailing_whitespace_len = buffer
2941 .chars_at(end)
2942 .take_while(|c| c.is_whitespace() && *c != '\n')
2943 .map(|c| c.len_utf8())
2944 .sum::<usize>();
2945
2946 let insert_extra_newline =
2947 language.brackets().any(|(pair, enabled)| {
2948 let pair_start = pair.start.trim_end();
2949 let pair_end = pair.end.trim_start();
2950
2951 enabled
2952 && pair.newline
2953 && buffer.contains_str_at(
2954 end + trailing_whitespace_len,
2955 pair_end,
2956 )
2957 && buffer.contains_str_at(
2958 (start - leading_whitespace_len)
2959 .saturating_sub(pair_start.len()),
2960 pair_start,
2961 )
2962 });
2963
2964 // Comment extension on newline is allowed only for cursor selections
2965 let comment_delimiter = maybe!({
2966 if !selection_is_empty {
2967 return None;
2968 }
2969
2970 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
2971 return None;
2972 }
2973
2974 let delimiters = language.line_comment_prefixes();
2975 let max_len_of_delimiter =
2976 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2977 let (snapshot, range) =
2978 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
2979
2980 let mut index_of_first_non_whitespace = 0;
2981 let comment_candidate = snapshot
2982 .chars_for_range(range)
2983 .skip_while(|c| {
2984 let should_skip = c.is_whitespace();
2985 if should_skip {
2986 index_of_first_non_whitespace += 1;
2987 }
2988 should_skip
2989 })
2990 .take(max_len_of_delimiter)
2991 .collect::<String>();
2992 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2993 comment_candidate.starts_with(comment_prefix.as_ref())
2994 })?;
2995 let cursor_is_placed_after_comment_marker =
2996 index_of_first_non_whitespace + comment_prefix.len()
2997 <= start_point.column as usize;
2998 if cursor_is_placed_after_comment_marker {
2999 Some(comment_prefix.clone())
3000 } else {
3001 None
3002 }
3003 });
3004 (comment_delimiter, insert_extra_newline)
3005 } else {
3006 (None, false)
3007 };
3008
3009 let capacity_for_delimiter = comment_delimiter
3010 .as_deref()
3011 .map(str::len)
3012 .unwrap_or_default();
3013 let mut new_text =
3014 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3015 new_text.push('\n');
3016 new_text.extend(indent.chars());
3017 if let Some(delimiter) = &comment_delimiter {
3018 new_text.push_str(delimiter);
3019 }
3020 if insert_extra_newline {
3021 new_text = new_text.repeat(2);
3022 }
3023
3024 let anchor = buffer.anchor_after(end);
3025 let new_selection = selection.map(|_| anchor);
3026 (
3027 (start..end, new_text),
3028 (insert_extra_newline, new_selection),
3029 )
3030 })
3031 .unzip()
3032 };
3033
3034 this.edit_with_autoindent(edits, cx);
3035 let buffer = this.buffer.read(cx).snapshot(cx);
3036 let new_selections = selection_fixup_info
3037 .into_iter()
3038 .map(|(extra_newline_inserted, new_selection)| {
3039 let mut cursor = new_selection.end.to_point(&buffer);
3040 if extra_newline_inserted {
3041 cursor.row -= 1;
3042 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3043 }
3044 new_selection.map(|_| cursor)
3045 })
3046 .collect();
3047
3048 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3049 this.refresh_inline_completion(true, false, cx);
3050 });
3051 }
3052
3053 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3054 let buffer = self.buffer.read(cx);
3055 let snapshot = buffer.snapshot(cx);
3056
3057 let mut edits = Vec::new();
3058 let mut rows = Vec::new();
3059
3060 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3061 let cursor = selection.head();
3062 let row = cursor.row;
3063
3064 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3065
3066 let newline = "\n".to_string();
3067 edits.push((start_of_line..start_of_line, newline));
3068
3069 rows.push(row + rows_inserted as u32);
3070 }
3071
3072 self.transact(cx, |editor, cx| {
3073 editor.edit(edits, cx);
3074
3075 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3076 let mut index = 0;
3077 s.move_cursors_with(|map, _, _| {
3078 let row = rows[index];
3079 index += 1;
3080
3081 let point = Point::new(row, 0);
3082 let boundary = map.next_line_boundary(point).1;
3083 let clipped = map.clip_point(boundary, Bias::Left);
3084
3085 (clipped, SelectionGoal::None)
3086 });
3087 });
3088
3089 let mut indent_edits = Vec::new();
3090 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3091 for row in rows {
3092 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3093 for (row, indent) in indents {
3094 if indent.len == 0 {
3095 continue;
3096 }
3097
3098 let text = match indent.kind {
3099 IndentKind::Space => " ".repeat(indent.len as usize),
3100 IndentKind::Tab => "\t".repeat(indent.len as usize),
3101 };
3102 let point = Point::new(row.0, 0);
3103 indent_edits.push((point..point, text));
3104 }
3105 }
3106 editor.edit(indent_edits, cx);
3107 });
3108 }
3109
3110 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3111 let buffer = self.buffer.read(cx);
3112 let snapshot = buffer.snapshot(cx);
3113
3114 let mut edits = Vec::new();
3115 let mut rows = Vec::new();
3116 let mut rows_inserted = 0;
3117
3118 for selection in self.selections.all_adjusted(cx) {
3119 let cursor = selection.head();
3120 let row = cursor.row;
3121
3122 let point = Point::new(row + 1, 0);
3123 let start_of_line = snapshot.clip_point(point, Bias::Left);
3124
3125 let newline = "\n".to_string();
3126 edits.push((start_of_line..start_of_line, newline));
3127
3128 rows_inserted += 1;
3129 rows.push(row + rows_inserted);
3130 }
3131
3132 self.transact(cx, |editor, cx| {
3133 editor.edit(edits, cx);
3134
3135 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3136 let mut index = 0;
3137 s.move_cursors_with(|map, _, _| {
3138 let row = rows[index];
3139 index += 1;
3140
3141 let point = Point::new(row, 0);
3142 let boundary = map.next_line_boundary(point).1;
3143 let clipped = map.clip_point(boundary, Bias::Left);
3144
3145 (clipped, SelectionGoal::None)
3146 });
3147 });
3148
3149 let mut indent_edits = Vec::new();
3150 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3151 for row in rows {
3152 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3153 for (row, indent) in indents {
3154 if indent.len == 0 {
3155 continue;
3156 }
3157
3158 let text = match indent.kind {
3159 IndentKind::Space => " ".repeat(indent.len as usize),
3160 IndentKind::Tab => "\t".repeat(indent.len as usize),
3161 };
3162 let point = Point::new(row.0, 0);
3163 indent_edits.push((point..point, text));
3164 }
3165 }
3166 editor.edit(indent_edits, cx);
3167 });
3168 }
3169
3170 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3171 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3172 original_indent_columns: Vec::new(),
3173 });
3174 self.insert_with_autoindent_mode(text, autoindent, cx);
3175 }
3176
3177 fn insert_with_autoindent_mode(
3178 &mut self,
3179 text: &str,
3180 autoindent_mode: Option<AutoindentMode>,
3181 cx: &mut ViewContext<Self>,
3182 ) {
3183 if self.read_only(cx) {
3184 return;
3185 }
3186
3187 let text: Arc<str> = text.into();
3188 self.transact(cx, |this, cx| {
3189 let old_selections = this.selections.all_adjusted(cx);
3190 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3191 let anchors = {
3192 let snapshot = buffer.read(cx);
3193 old_selections
3194 .iter()
3195 .map(|s| {
3196 let anchor = snapshot.anchor_after(s.head());
3197 s.map(|_| anchor)
3198 })
3199 .collect::<Vec<_>>()
3200 };
3201 buffer.edit(
3202 old_selections
3203 .iter()
3204 .map(|s| (s.start..s.end, text.clone())),
3205 autoindent_mode,
3206 cx,
3207 );
3208 anchors
3209 });
3210
3211 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3212 s.select_anchors(selection_anchors);
3213 })
3214 });
3215 }
3216
3217 fn trigger_completion_on_input(
3218 &mut self,
3219 text: &str,
3220 trigger_in_words: bool,
3221 cx: &mut ViewContext<Self>,
3222 ) {
3223 if self.is_completion_trigger(text, trigger_in_words, cx) {
3224 self.show_completions(
3225 &ShowCompletions {
3226 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3227 },
3228 cx,
3229 );
3230 } else {
3231 self.hide_context_menu(cx);
3232 }
3233 }
3234
3235 fn is_completion_trigger(
3236 &self,
3237 text: &str,
3238 trigger_in_words: bool,
3239 cx: &mut ViewContext<Self>,
3240 ) -> bool {
3241 let position = self.selections.newest_anchor().head();
3242 let multibuffer = self.buffer.read(cx);
3243 let Some(buffer) = position
3244 .buffer_id
3245 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3246 else {
3247 return false;
3248 };
3249
3250 if let Some(completion_provider) = &self.completion_provider {
3251 completion_provider.is_completion_trigger(
3252 &buffer,
3253 position.text_anchor,
3254 text,
3255 trigger_in_words,
3256 cx,
3257 )
3258 } else {
3259 false
3260 }
3261 }
3262
3263 /// If any empty selections is touching the start of its innermost containing autoclose
3264 /// region, expand it to select the brackets.
3265 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3266 let selections = self.selections.all::<usize>(cx);
3267 let buffer = self.buffer.read(cx).read(cx);
3268 let new_selections = self
3269 .selections_with_autoclose_regions(selections, &buffer)
3270 .map(|(mut selection, region)| {
3271 if !selection.is_empty() {
3272 return selection;
3273 }
3274
3275 if let Some(region) = region {
3276 let mut range = region.range.to_offset(&buffer);
3277 if selection.start == range.start && range.start >= region.pair.start.len() {
3278 range.start -= region.pair.start.len();
3279 if buffer.contains_str_at(range.start, ®ion.pair.start)
3280 && buffer.contains_str_at(range.end, ®ion.pair.end)
3281 {
3282 range.end += region.pair.end.len();
3283 selection.start = range.start;
3284 selection.end = range.end;
3285
3286 return selection;
3287 }
3288 }
3289 }
3290
3291 let always_treat_brackets_as_autoclosed = buffer
3292 .settings_at(selection.start, cx)
3293 .always_treat_brackets_as_autoclosed;
3294
3295 if !always_treat_brackets_as_autoclosed {
3296 return selection;
3297 }
3298
3299 if let Some(scope) = buffer.language_scope_at(selection.start) {
3300 for (pair, enabled) in scope.brackets() {
3301 if !enabled || !pair.close {
3302 continue;
3303 }
3304
3305 if buffer.contains_str_at(selection.start, &pair.end) {
3306 let pair_start_len = pair.start.len();
3307 if buffer.contains_str_at(
3308 selection.start.saturating_sub(pair_start_len),
3309 &pair.start,
3310 ) {
3311 selection.start -= pair_start_len;
3312 selection.end += pair.end.len();
3313
3314 return selection;
3315 }
3316 }
3317 }
3318 }
3319
3320 selection
3321 })
3322 .collect();
3323
3324 drop(buffer);
3325 self.change_selections(None, cx, |selections| selections.select(new_selections));
3326 }
3327
3328 /// Iterate the given selections, and for each one, find the smallest surrounding
3329 /// autoclose region. This uses the ordering of the selections and the autoclose
3330 /// regions to avoid repeated comparisons.
3331 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3332 &'a self,
3333 selections: impl IntoIterator<Item = Selection<D>>,
3334 buffer: &'a MultiBufferSnapshot,
3335 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3336 let mut i = 0;
3337 let mut regions = self.autoclose_regions.as_slice();
3338 selections.into_iter().map(move |selection| {
3339 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3340
3341 let mut enclosing = None;
3342 while let Some(pair_state) = regions.get(i) {
3343 if pair_state.range.end.to_offset(buffer) < range.start {
3344 regions = ®ions[i + 1..];
3345 i = 0;
3346 } else if pair_state.range.start.to_offset(buffer) > range.end {
3347 break;
3348 } else {
3349 if pair_state.selection_id == selection.id {
3350 enclosing = Some(pair_state);
3351 }
3352 i += 1;
3353 }
3354 }
3355
3356 (selection, enclosing)
3357 })
3358 }
3359
3360 /// Remove any autoclose regions that no longer contain their selection.
3361 fn invalidate_autoclose_regions(
3362 &mut self,
3363 mut selections: &[Selection<Anchor>],
3364 buffer: &MultiBufferSnapshot,
3365 ) {
3366 self.autoclose_regions.retain(|state| {
3367 let mut i = 0;
3368 while let Some(selection) = selections.get(i) {
3369 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3370 selections = &selections[1..];
3371 continue;
3372 }
3373 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3374 break;
3375 }
3376 if selection.id == state.selection_id {
3377 return true;
3378 } else {
3379 i += 1;
3380 }
3381 }
3382 false
3383 });
3384 }
3385
3386 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3387 let offset = position.to_offset(buffer);
3388 let (word_range, kind) = buffer.surrounding_word(offset, true);
3389 if offset > word_range.start && kind == Some(CharKind::Word) {
3390 Some(
3391 buffer
3392 .text_for_range(word_range.start..offset)
3393 .collect::<String>(),
3394 )
3395 } else {
3396 None
3397 }
3398 }
3399
3400 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3401 self.refresh_inlay_hints(
3402 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3403 cx,
3404 );
3405 }
3406
3407 pub fn inlay_hints_enabled(&self) -> bool {
3408 self.inlay_hint_cache.enabled
3409 }
3410
3411 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3412 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
3413 return;
3414 }
3415
3416 let reason_description = reason.description();
3417 let ignore_debounce = matches!(
3418 reason,
3419 InlayHintRefreshReason::SettingsChange(_)
3420 | InlayHintRefreshReason::Toggle(_)
3421 | InlayHintRefreshReason::ExcerptsRemoved(_)
3422 );
3423 let (invalidate_cache, required_languages) = match reason {
3424 InlayHintRefreshReason::Toggle(enabled) => {
3425 self.inlay_hint_cache.enabled = enabled;
3426 if enabled {
3427 (InvalidationStrategy::RefreshRequested, None)
3428 } else {
3429 self.inlay_hint_cache.clear();
3430 self.splice_inlays(
3431 self.visible_inlay_hints(cx)
3432 .iter()
3433 .map(|inlay| inlay.id)
3434 .collect(),
3435 Vec::new(),
3436 cx,
3437 );
3438 return;
3439 }
3440 }
3441 InlayHintRefreshReason::SettingsChange(new_settings) => {
3442 match self.inlay_hint_cache.update_settings(
3443 &self.buffer,
3444 new_settings,
3445 self.visible_inlay_hints(cx),
3446 cx,
3447 ) {
3448 ControlFlow::Break(Some(InlaySplice {
3449 to_remove,
3450 to_insert,
3451 })) => {
3452 self.splice_inlays(to_remove, to_insert, cx);
3453 return;
3454 }
3455 ControlFlow::Break(None) => return,
3456 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3457 }
3458 }
3459 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3460 if let Some(InlaySplice {
3461 to_remove,
3462 to_insert,
3463 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3464 {
3465 self.splice_inlays(to_remove, to_insert, cx);
3466 }
3467 return;
3468 }
3469 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3470 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3471 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3472 }
3473 InlayHintRefreshReason::RefreshRequested => {
3474 (InvalidationStrategy::RefreshRequested, None)
3475 }
3476 };
3477
3478 if let Some(InlaySplice {
3479 to_remove,
3480 to_insert,
3481 }) = self.inlay_hint_cache.spawn_hint_refresh(
3482 reason_description,
3483 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3484 invalidate_cache,
3485 ignore_debounce,
3486 cx,
3487 ) {
3488 self.splice_inlays(to_remove, to_insert, cx);
3489 }
3490 }
3491
3492 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3493 self.display_map
3494 .read(cx)
3495 .current_inlays()
3496 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3497 .cloned()
3498 .collect()
3499 }
3500
3501 pub fn excerpts_for_inlay_hints_query(
3502 &self,
3503 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3504 cx: &mut ViewContext<Editor>,
3505 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3506 let Some(project) = self.project.as_ref() else {
3507 return HashMap::default();
3508 };
3509 let project = project.read(cx);
3510 let multi_buffer = self.buffer().read(cx);
3511 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3512 let multi_buffer_visible_start = self
3513 .scroll_manager
3514 .anchor()
3515 .anchor
3516 .to_point(&multi_buffer_snapshot);
3517 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3518 multi_buffer_visible_start
3519 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3520 Bias::Left,
3521 );
3522 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3523 multi_buffer
3524 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3525 .into_iter()
3526 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3527 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3528 let buffer = buffer_handle.read(cx);
3529 let buffer_file = project::File::from_dyn(buffer.file())?;
3530 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3531 let worktree_entry = buffer_worktree
3532 .read(cx)
3533 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3534 if worktree_entry.is_ignored {
3535 return None;
3536 }
3537
3538 let language = buffer.language()?;
3539 if let Some(restrict_to_languages) = restrict_to_languages {
3540 if !restrict_to_languages.contains(language) {
3541 return None;
3542 }
3543 }
3544 Some((
3545 excerpt_id,
3546 (
3547 buffer_handle,
3548 buffer.version().clone(),
3549 excerpt_visible_range,
3550 ),
3551 ))
3552 })
3553 .collect()
3554 }
3555
3556 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3557 TextLayoutDetails {
3558 text_system: cx.text_system().clone(),
3559 editor_style: self.style.clone().unwrap(),
3560 rem_size: cx.rem_size(),
3561 scroll_anchor: self.scroll_manager.anchor(),
3562 visible_rows: self.visible_line_count(),
3563 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3564 }
3565 }
3566
3567 fn splice_inlays(
3568 &self,
3569 to_remove: Vec<InlayId>,
3570 to_insert: Vec<Inlay>,
3571 cx: &mut ViewContext<Self>,
3572 ) {
3573 self.display_map.update(cx, |display_map, cx| {
3574 display_map.splice_inlays(to_remove, to_insert, cx)
3575 });
3576 cx.notify();
3577 }
3578
3579 fn trigger_on_type_formatting(
3580 &self,
3581 input: String,
3582 cx: &mut ViewContext<Self>,
3583 ) -> Option<Task<Result<()>>> {
3584 if input.len() != 1 {
3585 return None;
3586 }
3587
3588 let project = self.project.as_ref()?;
3589 let position = self.selections.newest_anchor().head();
3590 let (buffer, buffer_position) = self
3591 .buffer
3592 .read(cx)
3593 .text_anchor_for_position(position, cx)?;
3594
3595 let settings = language_settings::language_settings(
3596 buffer
3597 .read(cx)
3598 .language_at(buffer_position)
3599 .map(|l| l.name()),
3600 buffer.read(cx).file(),
3601 cx,
3602 );
3603 if !settings.use_on_type_format {
3604 return None;
3605 }
3606
3607 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3608 // hence we do LSP request & edit on host side only — add formats to host's history.
3609 let push_to_lsp_host_history = true;
3610 // If this is not the host, append its history with new edits.
3611 let push_to_client_history = project.read(cx).is_via_collab();
3612
3613 let on_type_formatting = project.update(cx, |project, cx| {
3614 project.on_type_format(
3615 buffer.clone(),
3616 buffer_position,
3617 input,
3618 push_to_lsp_host_history,
3619 cx,
3620 )
3621 });
3622 Some(cx.spawn(|editor, mut cx| async move {
3623 if let Some(transaction) = on_type_formatting.await? {
3624 if push_to_client_history {
3625 buffer
3626 .update(&mut cx, |buffer, _| {
3627 buffer.push_transaction(transaction, Instant::now());
3628 })
3629 .ok();
3630 }
3631 editor.update(&mut cx, |editor, cx| {
3632 editor.refresh_document_highlights(cx);
3633 })?;
3634 }
3635 Ok(())
3636 }))
3637 }
3638
3639 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
3640 if self.pending_rename.is_some() {
3641 return;
3642 }
3643
3644 let Some(provider) = self.completion_provider.as_ref() else {
3645 return;
3646 };
3647
3648 if !self.snippet_stack.is_empty() && self.context_menu.borrow().as_ref().is_some() {
3649 return;
3650 }
3651
3652 let position = self.selections.newest_anchor().head();
3653 let (buffer, buffer_position) =
3654 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3655 output
3656 } else {
3657 return;
3658 };
3659 let show_completion_documentation = buffer
3660 .read(cx)
3661 .snapshot()
3662 .settings_at(buffer_position, cx)
3663 .show_completion_documentation;
3664
3665 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3666
3667 let aside_was_displayed = match self.context_menu.borrow().deref() {
3668 Some(CodeContextMenu::Completions(menu)) => menu.aside_was_displayed.get(),
3669 _ => false,
3670 };
3671 let trigger_kind = match &options.trigger {
3672 Some(trigger) if buffer.read(cx).completion_triggers().contains(trigger) => {
3673 CompletionTriggerKind::TRIGGER_CHARACTER
3674 }
3675 _ => CompletionTriggerKind::INVOKED,
3676 };
3677 let completion_context = CompletionContext {
3678 trigger_character: options.trigger.as_ref().and_then(|trigger| {
3679 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
3680 Some(String::from(trigger))
3681 } else {
3682 None
3683 }
3684 }),
3685 trigger_kind,
3686 };
3687 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
3688 let sort_completions = provider.sort_completions();
3689
3690 let id = post_inc(&mut self.next_completion_id);
3691 let task = cx.spawn(|editor, mut cx| {
3692 async move {
3693 editor.update(&mut cx, |this, _| {
3694 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3695 })?;
3696 let completions = completions.await.log_err();
3697 let menu = if let Some(completions) = completions {
3698 let mut menu = CompletionsMenu::new(
3699 id,
3700 sort_completions,
3701 show_completion_documentation,
3702 position,
3703 buffer.clone(),
3704 completions.into(),
3705 aside_was_displayed,
3706 );
3707 menu.filter(query.as_deref(), cx.background_executor().clone())
3708 .await;
3709
3710 if menu.matches.is_empty() {
3711 None
3712 } else {
3713 Some(menu)
3714 }
3715 } else {
3716 None
3717 };
3718
3719 editor.update(&mut cx, |editor, cx| {
3720 let mut context_menu = editor.context_menu.borrow_mut();
3721 match context_menu.as_ref() {
3722 None => {}
3723 Some(CodeContextMenu::Completions(prev_menu)) => {
3724 if prev_menu.id > id {
3725 return;
3726 }
3727 }
3728 _ => return,
3729 }
3730
3731 if editor.focus_handle.is_focused(cx) && menu.is_some() {
3732 let mut menu = menu.unwrap();
3733 menu.resolve_selected_completion(editor.completion_provider.as_deref(), cx);
3734 *context_menu = Some(CodeContextMenu::Completions(menu));
3735 drop(context_menu);
3736 cx.notify();
3737 } else if editor.completion_tasks.len() <= 1 {
3738 // If there are no more completion tasks and the last menu was
3739 // empty, we should hide it. If it was already hidden, we should
3740 // also show the copilot completion when available.
3741 drop(context_menu);
3742 editor.hide_context_menu(cx);
3743 }
3744 })?;
3745
3746 Ok::<_, anyhow::Error>(())
3747 }
3748 .log_err()
3749 });
3750
3751 self.completion_tasks.push((id, task));
3752 }
3753
3754 pub fn confirm_completion(
3755 &mut self,
3756 action: &ConfirmCompletion,
3757 cx: &mut ViewContext<Self>,
3758 ) -> Option<Task<Result<()>>> {
3759 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
3760 }
3761
3762 pub fn compose_completion(
3763 &mut self,
3764 action: &ComposeCompletion,
3765 cx: &mut ViewContext<Self>,
3766 ) -> Option<Task<Result<()>>> {
3767 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
3768 }
3769
3770 fn do_completion(
3771 &mut self,
3772 item_ix: Option<usize>,
3773 intent: CompletionIntent,
3774 cx: &mut ViewContext<Editor>,
3775 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
3776 use language::ToOffset as _;
3777
3778 self.discard_inline_completion(true, cx);
3779 let completions_menu =
3780 if let CodeContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3781 menu
3782 } else {
3783 return None;
3784 };
3785
3786 let mat = completions_menu
3787 .matches
3788 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
3789 let buffer_handle = completions_menu.buffer;
3790 let completions = completions_menu.completions.borrow_mut();
3791 let completion = completions.get(mat.candidate_id)?;
3792 cx.stop_propagation();
3793
3794 let snippet;
3795 let text;
3796
3797 if completion.is_snippet() {
3798 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3799 text = snippet.as_ref().unwrap().text.clone();
3800 } else {
3801 snippet = None;
3802 text = completion.new_text.clone();
3803 };
3804 let selections = self.selections.all::<usize>(cx);
3805 let buffer = buffer_handle.read(cx);
3806 let old_range = completion.old_range.to_offset(buffer);
3807 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3808
3809 let newest_selection = self.selections.newest_anchor();
3810 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3811 return None;
3812 }
3813
3814 let lookbehind = newest_selection
3815 .start
3816 .text_anchor
3817 .to_offset(buffer)
3818 .saturating_sub(old_range.start);
3819 let lookahead = old_range
3820 .end
3821 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3822 let mut common_prefix_len = old_text
3823 .bytes()
3824 .zip(text.bytes())
3825 .take_while(|(a, b)| a == b)
3826 .count();
3827
3828 let snapshot = self.buffer.read(cx).snapshot(cx);
3829 let mut range_to_replace: Option<Range<isize>> = None;
3830 let mut ranges = Vec::new();
3831 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3832 for selection in &selections {
3833 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3834 let start = selection.start.saturating_sub(lookbehind);
3835 let end = selection.end + lookahead;
3836 if selection.id == newest_selection.id {
3837 range_to_replace = Some(
3838 ((start + common_prefix_len) as isize - selection.start as isize)
3839 ..(end as isize - selection.start as isize),
3840 );
3841 }
3842 ranges.push(start + common_prefix_len..end);
3843 } else {
3844 common_prefix_len = 0;
3845 ranges.clear();
3846 ranges.extend(selections.iter().map(|s| {
3847 if s.id == newest_selection.id {
3848 range_to_replace = Some(
3849 old_range.start.to_offset_utf16(&snapshot).0 as isize
3850 - selection.start as isize
3851 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3852 - selection.start as isize,
3853 );
3854 old_range.clone()
3855 } else {
3856 s.start..s.end
3857 }
3858 }));
3859 break;
3860 }
3861 if !self.linked_edit_ranges.is_empty() {
3862 let start_anchor = snapshot.anchor_before(selection.head());
3863 let end_anchor = snapshot.anchor_after(selection.tail());
3864 if let Some(ranges) = self
3865 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
3866 {
3867 for (buffer, edits) in ranges {
3868 linked_edits.entry(buffer.clone()).or_default().extend(
3869 edits
3870 .into_iter()
3871 .map(|range| (range, text[common_prefix_len..].to_owned())),
3872 );
3873 }
3874 }
3875 }
3876 }
3877 let text = &text[common_prefix_len..];
3878
3879 cx.emit(EditorEvent::InputHandled {
3880 utf16_range_to_replace: range_to_replace,
3881 text: text.into(),
3882 });
3883
3884 self.transact(cx, |this, cx| {
3885 if let Some(mut snippet) = snippet {
3886 snippet.text = text.to_string();
3887 for tabstop in snippet
3888 .tabstops
3889 .iter_mut()
3890 .flat_map(|tabstop| tabstop.ranges.iter_mut())
3891 {
3892 tabstop.start -= common_prefix_len as isize;
3893 tabstop.end -= common_prefix_len as isize;
3894 }
3895
3896 this.insert_snippet(&ranges, snippet, cx).log_err();
3897 } else {
3898 this.buffer.update(cx, |buffer, cx| {
3899 buffer.edit(
3900 ranges.iter().map(|range| (range.clone(), text)),
3901 this.autoindent_mode.clone(),
3902 cx,
3903 );
3904 });
3905 }
3906 for (buffer, edits) in linked_edits {
3907 buffer.update(cx, |buffer, cx| {
3908 let snapshot = buffer.snapshot();
3909 let edits = edits
3910 .into_iter()
3911 .map(|(range, text)| {
3912 use text::ToPoint as TP;
3913 let end_point = TP::to_point(&range.end, &snapshot);
3914 let start_point = TP::to_point(&range.start, &snapshot);
3915 (start_point..end_point, text)
3916 })
3917 .sorted_by_key(|(range, _)| range.start)
3918 .collect::<Vec<_>>();
3919 buffer.edit(edits, None, cx);
3920 })
3921 }
3922
3923 this.refresh_inline_completion(true, false, cx);
3924 });
3925
3926 let show_new_completions_on_confirm = completion
3927 .confirm
3928 .as_ref()
3929 .map_or(false, |confirm| confirm(intent, cx));
3930 if show_new_completions_on_confirm {
3931 self.show_completions(&ShowCompletions { trigger: None }, cx);
3932 }
3933
3934 let provider = self.completion_provider.as_ref()?;
3935 let apply_edits = provider.apply_additional_edits_for_completion(
3936 buffer_handle,
3937 completion.clone(),
3938 true,
3939 cx,
3940 );
3941
3942 let editor_settings = EditorSettings::get_global(cx);
3943 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
3944 // After the code completion is finished, users often want to know what signatures are needed.
3945 // so we should automatically call signature_help
3946 self.show_signature_help(&ShowSignatureHelp, cx);
3947 }
3948
3949 Some(cx.foreground_executor().spawn(async move {
3950 apply_edits.await?;
3951 Ok(())
3952 }))
3953 }
3954
3955 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3956 let mut context_menu = self.context_menu.borrow_mut();
3957 if let Some(CodeContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
3958 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
3959 // Toggle if we're selecting the same one
3960 *context_menu = None;
3961 cx.notify();
3962 return;
3963 } else {
3964 // Otherwise, clear it and start a new one
3965 *context_menu = None;
3966 cx.notify();
3967 }
3968 }
3969 drop(context_menu);
3970 let snapshot = self.snapshot(cx);
3971 let deployed_from_indicator = action.deployed_from_indicator;
3972 let mut task = self.code_actions_task.take();
3973 let action = action.clone();
3974 cx.spawn(|editor, mut cx| async move {
3975 while let Some(prev_task) = task {
3976 prev_task.await.log_err();
3977 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
3978 }
3979
3980 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
3981 if editor.focus_handle.is_focused(cx) {
3982 let multibuffer_point = action
3983 .deployed_from_indicator
3984 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
3985 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
3986 let (buffer, buffer_row) = snapshot
3987 .buffer_snapshot
3988 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
3989 .and_then(|(buffer_snapshot, range)| {
3990 editor
3991 .buffer
3992 .read(cx)
3993 .buffer(buffer_snapshot.remote_id())
3994 .map(|buffer| (buffer, range.start.row))
3995 })?;
3996 let (_, code_actions) = editor
3997 .available_code_actions
3998 .clone()
3999 .and_then(|(location, code_actions)| {
4000 let snapshot = location.buffer.read(cx).snapshot();
4001 let point_range = location.range.to_point(&snapshot);
4002 let point_range = point_range.start.row..=point_range.end.row;
4003 if point_range.contains(&buffer_row) {
4004 Some((location, code_actions))
4005 } else {
4006 None
4007 }
4008 })
4009 .unzip();
4010 let buffer_id = buffer.read(cx).remote_id();
4011 let tasks = editor
4012 .tasks
4013 .get(&(buffer_id, buffer_row))
4014 .map(|t| Arc::new(t.to_owned()));
4015 if tasks.is_none() && code_actions.is_none() {
4016 return None;
4017 }
4018
4019 editor.completion_tasks.clear();
4020 editor.discard_inline_completion(false, cx);
4021 let task_context =
4022 tasks
4023 .as_ref()
4024 .zip(editor.project.clone())
4025 .map(|(tasks, project)| {
4026 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4027 });
4028
4029 Some(cx.spawn(|editor, mut cx| async move {
4030 let task_context = match task_context {
4031 Some(task_context) => task_context.await,
4032 None => None,
4033 };
4034 let resolved_tasks =
4035 tasks.zip(task_context).map(|(tasks, task_context)| {
4036 Rc::new(ResolvedTasks {
4037 templates: tasks.resolve(&task_context).collect(),
4038 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4039 multibuffer_point.row,
4040 tasks.column,
4041 )),
4042 })
4043 });
4044 let spawn_straight_away = resolved_tasks
4045 .as_ref()
4046 .map_or(false, |tasks| tasks.templates.len() == 1)
4047 && code_actions
4048 .as_ref()
4049 .map_or(true, |actions| actions.is_empty());
4050 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4051 *editor.context_menu.borrow_mut() =
4052 Some(CodeContextMenu::CodeActions(CodeActionsMenu {
4053 buffer,
4054 actions: CodeActionContents {
4055 tasks: resolved_tasks,
4056 actions: code_actions,
4057 },
4058 selected_item: Default::default(),
4059 scroll_handle: UniformListScrollHandle::default(),
4060 deployed_from_indicator,
4061 }));
4062 if spawn_straight_away {
4063 if let Some(task) = editor.confirm_code_action(
4064 &ConfirmCodeAction { item_ix: Some(0) },
4065 cx,
4066 ) {
4067 cx.notify();
4068 return task;
4069 }
4070 }
4071 cx.notify();
4072 Task::ready(Ok(()))
4073 }) {
4074 task.await
4075 } else {
4076 Ok(())
4077 }
4078 }))
4079 } else {
4080 Some(Task::ready(Ok(())))
4081 }
4082 })?;
4083 if let Some(task) = spawned_test_task {
4084 task.await?;
4085 }
4086
4087 Ok::<_, anyhow::Error>(())
4088 })
4089 .detach_and_log_err(cx);
4090 }
4091
4092 pub fn confirm_code_action(
4093 &mut self,
4094 action: &ConfirmCodeAction,
4095 cx: &mut ViewContext<Self>,
4096 ) -> Option<Task<Result<()>>> {
4097 let actions_menu = if let CodeContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4098 menu
4099 } else {
4100 return None;
4101 };
4102 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4103 let action = actions_menu.actions.get(action_ix)?;
4104 let title = action.label();
4105 let buffer = actions_menu.buffer;
4106 let workspace = self.workspace()?;
4107
4108 match action {
4109 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4110 workspace.update(cx, |workspace, cx| {
4111 workspace::tasks::schedule_resolved_task(
4112 workspace,
4113 task_source_kind,
4114 resolved_task,
4115 false,
4116 cx,
4117 );
4118
4119 Some(Task::ready(Ok(())))
4120 })
4121 }
4122 CodeActionsItem::CodeAction {
4123 excerpt_id,
4124 action,
4125 provider,
4126 } => {
4127 let apply_code_action =
4128 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4129 let workspace = workspace.downgrade();
4130 Some(cx.spawn(|editor, cx| async move {
4131 let project_transaction = apply_code_action.await?;
4132 Self::open_project_transaction(
4133 &editor,
4134 workspace,
4135 project_transaction,
4136 title,
4137 cx,
4138 )
4139 .await
4140 }))
4141 }
4142 }
4143 }
4144
4145 pub async fn open_project_transaction(
4146 this: &WeakView<Editor>,
4147 workspace: WeakView<Workspace>,
4148 transaction: ProjectTransaction,
4149 title: String,
4150 mut cx: AsyncWindowContext,
4151 ) -> Result<()> {
4152 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4153 cx.update(|cx| {
4154 entries.sort_unstable_by_key(|(buffer, _)| {
4155 buffer.read(cx).file().map(|f| f.path().clone())
4156 });
4157 })?;
4158
4159 // If the project transaction's edits are all contained within this editor, then
4160 // avoid opening a new editor to display them.
4161
4162 if let Some((buffer, transaction)) = entries.first() {
4163 if entries.len() == 1 {
4164 let excerpt = this.update(&mut cx, |editor, cx| {
4165 editor
4166 .buffer()
4167 .read(cx)
4168 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4169 })?;
4170 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4171 if excerpted_buffer == *buffer {
4172 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4173 let excerpt_range = excerpt_range.to_offset(buffer);
4174 buffer
4175 .edited_ranges_for_transaction::<usize>(transaction)
4176 .all(|range| {
4177 excerpt_range.start <= range.start
4178 && excerpt_range.end >= range.end
4179 })
4180 })?;
4181
4182 if all_edits_within_excerpt {
4183 return Ok(());
4184 }
4185 }
4186 }
4187 }
4188 } else {
4189 return Ok(());
4190 }
4191
4192 let mut ranges_to_highlight = Vec::new();
4193 let excerpt_buffer = cx.new_model(|cx| {
4194 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4195 for (buffer_handle, transaction) in &entries {
4196 let buffer = buffer_handle.read(cx);
4197 ranges_to_highlight.extend(
4198 multibuffer.push_excerpts_with_context_lines(
4199 buffer_handle.clone(),
4200 buffer
4201 .edited_ranges_for_transaction::<usize>(transaction)
4202 .collect(),
4203 DEFAULT_MULTIBUFFER_CONTEXT,
4204 cx,
4205 ),
4206 );
4207 }
4208 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4209 multibuffer
4210 })?;
4211
4212 workspace.update(&mut cx, |workspace, cx| {
4213 let project = workspace.project().clone();
4214 let editor =
4215 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4216 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4217 editor.update(cx, |editor, cx| {
4218 editor.highlight_background::<Self>(
4219 &ranges_to_highlight,
4220 |theme| theme.editor_highlighted_line_background,
4221 cx,
4222 );
4223 });
4224 })?;
4225
4226 Ok(())
4227 }
4228
4229 pub fn clear_code_action_providers(&mut self) {
4230 self.code_action_providers.clear();
4231 self.available_code_actions.take();
4232 }
4233
4234 pub fn push_code_action_provider(
4235 &mut self,
4236 provider: Rc<dyn CodeActionProvider>,
4237 cx: &mut ViewContext<Self>,
4238 ) {
4239 self.code_action_providers.push(provider);
4240 self.refresh_code_actions(cx);
4241 }
4242
4243 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4244 let buffer = self.buffer.read(cx);
4245 let newest_selection = self.selections.newest_anchor().clone();
4246 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4247 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4248 if start_buffer != end_buffer {
4249 return None;
4250 }
4251
4252 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4253 cx.background_executor()
4254 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4255 .await;
4256
4257 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4258 let providers = this.code_action_providers.clone();
4259 let tasks = this
4260 .code_action_providers
4261 .iter()
4262 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4263 .collect::<Vec<_>>();
4264 (providers, tasks)
4265 })?;
4266
4267 let mut actions = Vec::new();
4268 for (provider, provider_actions) in
4269 providers.into_iter().zip(future::join_all(tasks).await)
4270 {
4271 if let Some(provider_actions) = provider_actions.log_err() {
4272 actions.extend(provider_actions.into_iter().map(|action| {
4273 AvailableCodeAction {
4274 excerpt_id: newest_selection.start.excerpt_id,
4275 action,
4276 provider: provider.clone(),
4277 }
4278 }));
4279 }
4280 }
4281
4282 this.update(&mut cx, |this, cx| {
4283 this.available_code_actions = if actions.is_empty() {
4284 None
4285 } else {
4286 Some((
4287 Location {
4288 buffer: start_buffer,
4289 range: start..end,
4290 },
4291 actions.into(),
4292 ))
4293 };
4294 cx.notify();
4295 })
4296 }));
4297 None
4298 }
4299
4300 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4301 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4302 self.show_git_blame_inline = false;
4303
4304 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4305 cx.background_executor().timer(delay).await;
4306
4307 this.update(&mut cx, |this, cx| {
4308 this.show_git_blame_inline = true;
4309 cx.notify();
4310 })
4311 .log_err();
4312 }));
4313 }
4314 }
4315
4316 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4317 if self.pending_rename.is_some() {
4318 return None;
4319 }
4320
4321 let provider = self.semantics_provider.clone()?;
4322 let buffer = self.buffer.read(cx);
4323 let newest_selection = self.selections.newest_anchor().clone();
4324 let cursor_position = newest_selection.head();
4325 let (cursor_buffer, cursor_buffer_position) =
4326 buffer.text_anchor_for_position(cursor_position, cx)?;
4327 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4328 if cursor_buffer != tail_buffer {
4329 return None;
4330 }
4331 let debounce = EditorSettings::get_global(cx).lsp_highlight_debounce;
4332 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4333 cx.background_executor()
4334 .timer(Duration::from_millis(debounce))
4335 .await;
4336
4337 let highlights = if let Some(highlights) = cx
4338 .update(|cx| {
4339 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4340 })
4341 .ok()
4342 .flatten()
4343 {
4344 highlights.await.log_err()
4345 } else {
4346 None
4347 };
4348
4349 if let Some(highlights) = highlights {
4350 this.update(&mut cx, |this, cx| {
4351 if this.pending_rename.is_some() {
4352 return;
4353 }
4354
4355 let buffer_id = cursor_position.buffer_id;
4356 let buffer = this.buffer.read(cx);
4357 if !buffer
4358 .text_anchor_for_position(cursor_position, cx)
4359 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4360 {
4361 return;
4362 }
4363
4364 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4365 let mut write_ranges = Vec::new();
4366 let mut read_ranges = Vec::new();
4367 for highlight in highlights {
4368 for (excerpt_id, excerpt_range) in
4369 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4370 {
4371 let start = highlight
4372 .range
4373 .start
4374 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4375 let end = highlight
4376 .range
4377 .end
4378 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4379 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4380 continue;
4381 }
4382
4383 let range = Anchor {
4384 buffer_id,
4385 excerpt_id,
4386 text_anchor: start,
4387 }..Anchor {
4388 buffer_id,
4389 excerpt_id,
4390 text_anchor: end,
4391 };
4392 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4393 write_ranges.push(range);
4394 } else {
4395 read_ranges.push(range);
4396 }
4397 }
4398 }
4399
4400 this.highlight_background::<DocumentHighlightRead>(
4401 &read_ranges,
4402 |theme| theme.editor_document_highlight_read_background,
4403 cx,
4404 );
4405 this.highlight_background::<DocumentHighlightWrite>(
4406 &write_ranges,
4407 |theme| theme.editor_document_highlight_write_background,
4408 cx,
4409 );
4410 cx.notify();
4411 })
4412 .log_err();
4413 }
4414 }));
4415 None
4416 }
4417
4418 pub fn refresh_inline_completion(
4419 &mut self,
4420 debounce: bool,
4421 user_requested: bool,
4422 cx: &mut ViewContext<Self>,
4423 ) -> Option<()> {
4424 let provider = self.inline_completion_provider()?;
4425 let cursor = self.selections.newest_anchor().head();
4426 let (buffer, cursor_buffer_position) =
4427 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4428
4429 if !user_requested
4430 && (!self.enable_inline_completions
4431 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4432 || !self.is_focused(cx))
4433 {
4434 self.discard_inline_completion(false, cx);
4435 return None;
4436 }
4437
4438 self.update_visible_inline_completion(cx);
4439 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4440 Some(())
4441 }
4442
4443 fn cycle_inline_completion(
4444 &mut self,
4445 direction: Direction,
4446 cx: &mut ViewContext<Self>,
4447 ) -> Option<()> {
4448 let provider = self.inline_completion_provider()?;
4449 let cursor = self.selections.newest_anchor().head();
4450 let (buffer, cursor_buffer_position) =
4451 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4452 if !self.enable_inline_completions
4453 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4454 {
4455 return None;
4456 }
4457
4458 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4459 self.update_visible_inline_completion(cx);
4460
4461 Some(())
4462 }
4463
4464 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4465 if !self.has_active_inline_completion() {
4466 self.refresh_inline_completion(false, true, cx);
4467 return;
4468 }
4469
4470 self.update_visible_inline_completion(cx);
4471 }
4472
4473 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4474 self.show_cursor_names(cx);
4475 }
4476
4477 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4478 self.show_cursor_names = true;
4479 cx.notify();
4480 cx.spawn(|this, mut cx| async move {
4481 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4482 this.update(&mut cx, |this, cx| {
4483 this.show_cursor_names = false;
4484 cx.notify()
4485 })
4486 .ok()
4487 })
4488 .detach();
4489 }
4490
4491 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4492 if self.has_active_inline_completion() {
4493 self.cycle_inline_completion(Direction::Next, cx);
4494 } else {
4495 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4496 if is_copilot_disabled {
4497 cx.propagate();
4498 }
4499 }
4500 }
4501
4502 pub fn previous_inline_completion(
4503 &mut self,
4504 _: &PreviousInlineCompletion,
4505 cx: &mut ViewContext<Self>,
4506 ) {
4507 if self.has_active_inline_completion() {
4508 self.cycle_inline_completion(Direction::Prev, cx);
4509 } else {
4510 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4511 if is_copilot_disabled {
4512 cx.propagate();
4513 }
4514 }
4515 }
4516
4517 pub fn accept_inline_completion(
4518 &mut self,
4519 _: &AcceptInlineCompletion,
4520 cx: &mut ViewContext<Self>,
4521 ) {
4522 self.hide_context_menu(cx);
4523
4524 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4525 return;
4526 };
4527
4528 self.report_inline_completion_event(true, cx);
4529
4530 match &active_inline_completion.completion {
4531 InlineCompletion::Move(position) => {
4532 let position = *position;
4533 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4534 selections.select_anchor_ranges([position..position]);
4535 });
4536 }
4537 InlineCompletion::Edit(edits) => {
4538 if let Some(provider) = self.inline_completion_provider() {
4539 provider.accept(cx);
4540 }
4541
4542 let snapshot = self.buffer.read(cx).snapshot(cx);
4543 let last_edit_end = edits.last().unwrap().0.end.bias_right(&snapshot);
4544
4545 self.buffer.update(cx, |buffer, cx| {
4546 buffer.edit(edits.iter().cloned(), None, cx)
4547 });
4548
4549 self.change_selections(None, cx, |s| {
4550 s.select_anchor_ranges([last_edit_end..last_edit_end])
4551 });
4552
4553 self.update_visible_inline_completion(cx);
4554 if self.active_inline_completion.is_none() {
4555 self.refresh_inline_completion(true, true, cx);
4556 }
4557
4558 cx.notify();
4559 }
4560 }
4561 }
4562
4563 pub fn accept_partial_inline_completion(
4564 &mut self,
4565 _: &AcceptPartialInlineCompletion,
4566 cx: &mut ViewContext<Self>,
4567 ) {
4568 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4569 return;
4570 };
4571 if self.selections.count() != 1 {
4572 return;
4573 }
4574
4575 self.report_inline_completion_event(true, cx);
4576
4577 match &active_inline_completion.completion {
4578 InlineCompletion::Move(position) => {
4579 let position = *position;
4580 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4581 selections.select_anchor_ranges([position..position]);
4582 });
4583 }
4584 InlineCompletion::Edit(edits) => {
4585 if edits.len() == 1 && edits[0].0.start == edits[0].0.end {
4586 let text = edits[0].1.as_str();
4587 let mut partial_completion = text
4588 .chars()
4589 .by_ref()
4590 .take_while(|c| c.is_alphabetic())
4591 .collect::<String>();
4592 if partial_completion.is_empty() {
4593 partial_completion = text
4594 .chars()
4595 .by_ref()
4596 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4597 .collect::<String>();
4598 }
4599
4600 cx.emit(EditorEvent::InputHandled {
4601 utf16_range_to_replace: None,
4602 text: partial_completion.clone().into(),
4603 });
4604
4605 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4606
4607 self.refresh_inline_completion(true, true, cx);
4608 cx.notify();
4609 }
4610 }
4611 }
4612 }
4613
4614 fn discard_inline_completion(
4615 &mut self,
4616 should_report_inline_completion_event: bool,
4617 cx: &mut ViewContext<Self>,
4618 ) -> bool {
4619 if should_report_inline_completion_event {
4620 self.report_inline_completion_event(false, cx);
4621 }
4622
4623 if let Some(provider) = self.inline_completion_provider() {
4624 provider.discard(cx);
4625 }
4626
4627 self.take_active_inline_completion(cx).is_some()
4628 }
4629
4630 fn report_inline_completion_event(&self, accepted: bool, cx: &AppContext) {
4631 let Some(provider) = self.inline_completion_provider() else {
4632 return;
4633 };
4634 let Some(project) = self.project.as_ref() else {
4635 return;
4636 };
4637 let Some((_, buffer, _)) = self
4638 .buffer
4639 .read(cx)
4640 .excerpt_containing(self.selections.newest_anchor().head(), cx)
4641 else {
4642 return;
4643 };
4644
4645 let project = project.read(cx);
4646 let extension = buffer
4647 .read(cx)
4648 .file()
4649 .and_then(|file| Some(file.path().extension()?.to_string_lossy().to_string()));
4650 project.client().telemetry().report_inline_completion_event(
4651 provider.name().into(),
4652 accepted,
4653 extension,
4654 );
4655 }
4656
4657 pub fn has_active_inline_completion(&self) -> bool {
4658 self.active_inline_completion.is_some()
4659 }
4660
4661 fn take_active_inline_completion(
4662 &mut self,
4663 cx: &mut ViewContext<Self>,
4664 ) -> Option<InlineCompletion> {
4665 let active_inline_completion = self.active_inline_completion.take()?;
4666 self.splice_inlays(active_inline_completion.inlay_ids, Default::default(), cx);
4667 self.clear_highlights::<InlineCompletionHighlight>(cx);
4668 Some(active_inline_completion.completion)
4669 }
4670
4671 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4672 let selection = self.selections.newest_anchor();
4673 let cursor = selection.head();
4674 let multibuffer = self.buffer.read(cx).snapshot(cx);
4675 let offset_selection = selection.map(|endpoint| endpoint.to_offset(&multibuffer));
4676 let excerpt_id = cursor.excerpt_id;
4677
4678 if !offset_selection.is_empty()
4679 || self
4680 .active_inline_completion
4681 .as_ref()
4682 .map_or(false, |completion| {
4683 let invalidation_range = completion.invalidation_range.to_offset(&multibuffer);
4684 let invalidation_range = invalidation_range.start..=invalidation_range.end;
4685 !invalidation_range.contains(&offset_selection.head())
4686 })
4687 {
4688 self.discard_inline_completion(false, cx);
4689 return None;
4690 }
4691
4692 self.take_active_inline_completion(cx);
4693 let provider = self.inline_completion_provider()?;
4694
4695 let (buffer, cursor_buffer_position) =
4696 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4697
4698 let completion = provider.suggest(&buffer, cursor_buffer_position, cx)?;
4699 let edits = completion
4700 .edits
4701 .into_iter()
4702 .map(|(range, new_text)| {
4703 (
4704 multibuffer
4705 .anchor_in_excerpt(excerpt_id, range.start)
4706 .unwrap()
4707 ..multibuffer
4708 .anchor_in_excerpt(excerpt_id, range.end)
4709 .unwrap(),
4710 new_text,
4711 )
4712 })
4713 .collect::<Vec<_>>();
4714 if edits.is_empty() {
4715 return None;
4716 }
4717
4718 let first_edit_start = edits.first().unwrap().0.start;
4719 let edit_start_row = first_edit_start
4720 .to_point(&multibuffer)
4721 .row
4722 .saturating_sub(2);
4723
4724 let last_edit_end = edits.last().unwrap().0.end;
4725 let edit_end_row = cmp::min(
4726 multibuffer.max_point().row,
4727 last_edit_end.to_point(&multibuffer).row + 2,
4728 );
4729
4730 let cursor_row = cursor.to_point(&multibuffer).row;
4731
4732 let mut inlay_ids = Vec::new();
4733 let invalidation_row_range;
4734 let completion;
4735 if cursor_row < edit_start_row {
4736 invalidation_row_range = cursor_row..edit_end_row;
4737 completion = InlineCompletion::Move(first_edit_start);
4738 } else if cursor_row > edit_end_row {
4739 invalidation_row_range = edit_start_row..cursor_row;
4740 completion = InlineCompletion::Move(first_edit_start);
4741 } else {
4742 if edits
4743 .iter()
4744 .all(|(range, _)| range.to_offset(&multibuffer).is_empty())
4745 {
4746 let mut inlays = Vec::new();
4747 for (range, new_text) in &edits {
4748 let inlay = Inlay::inline_completion(
4749 post_inc(&mut self.next_inlay_id),
4750 range.start,
4751 new_text.as_str(),
4752 );
4753 inlay_ids.push(inlay.id);
4754 inlays.push(inlay);
4755 }
4756
4757 self.splice_inlays(vec![], inlays, cx);
4758 } else {
4759 let background_color = cx.theme().status().deleted_background;
4760 self.highlight_text::<InlineCompletionHighlight>(
4761 edits.iter().map(|(range, _)| range.clone()).collect(),
4762 HighlightStyle {
4763 background_color: Some(background_color),
4764 ..Default::default()
4765 },
4766 cx,
4767 );
4768 }
4769
4770 invalidation_row_range = edit_start_row..edit_end_row;
4771 completion = InlineCompletion::Edit(edits);
4772 };
4773
4774 let invalidation_range = multibuffer
4775 .anchor_before(Point::new(invalidation_row_range.start, 0))
4776 ..multibuffer.anchor_after(Point::new(
4777 invalidation_row_range.end,
4778 multibuffer.line_len(MultiBufferRow(invalidation_row_range.end)),
4779 ));
4780
4781 self.active_inline_completion = Some(InlineCompletionState {
4782 inlay_ids,
4783 completion,
4784 invalidation_range,
4785 });
4786 cx.notify();
4787
4788 Some(())
4789 }
4790
4791 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4792 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4793 }
4794
4795 fn render_code_actions_indicator(
4796 &self,
4797 _style: &EditorStyle,
4798 row: DisplayRow,
4799 is_active: bool,
4800 cx: &mut ViewContext<Self>,
4801 ) -> Option<IconButton> {
4802 if self.available_code_actions.is_some() {
4803 Some(
4804 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4805 .shape(ui::IconButtonShape::Square)
4806 .icon_size(IconSize::XSmall)
4807 .icon_color(Color::Muted)
4808 .toggle_state(is_active)
4809 .tooltip({
4810 let focus_handle = self.focus_handle.clone();
4811 move |cx| {
4812 Tooltip::for_action_in(
4813 "Toggle Code Actions",
4814 &ToggleCodeActions {
4815 deployed_from_indicator: None,
4816 },
4817 &focus_handle,
4818 cx,
4819 )
4820 }
4821 })
4822 .on_click(cx.listener(move |editor, _e, cx| {
4823 editor.focus(cx);
4824 editor.toggle_code_actions(
4825 &ToggleCodeActions {
4826 deployed_from_indicator: Some(row),
4827 },
4828 cx,
4829 );
4830 })),
4831 )
4832 } else {
4833 None
4834 }
4835 }
4836
4837 fn clear_tasks(&mut self) {
4838 self.tasks.clear()
4839 }
4840
4841 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
4842 if self.tasks.insert(key, value).is_some() {
4843 // This case should hopefully be rare, but just in case...
4844 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4845 }
4846 }
4847
4848 fn build_tasks_context(
4849 project: &Model<Project>,
4850 buffer: &Model<Buffer>,
4851 buffer_row: u32,
4852 tasks: &Arc<RunnableTasks>,
4853 cx: &mut ViewContext<Self>,
4854 ) -> Task<Option<task::TaskContext>> {
4855 let position = Point::new(buffer_row, tasks.column);
4856 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4857 let location = Location {
4858 buffer: buffer.clone(),
4859 range: range_start..range_start,
4860 };
4861 // Fill in the environmental variables from the tree-sitter captures
4862 let mut captured_task_variables = TaskVariables::default();
4863 for (capture_name, value) in tasks.extra_variables.clone() {
4864 captured_task_variables.insert(
4865 task::VariableName::Custom(capture_name.into()),
4866 value.clone(),
4867 );
4868 }
4869 project.update(cx, |project, cx| {
4870 project.task_store().update(cx, |task_store, cx| {
4871 task_store.task_context_for_location(captured_task_variables, location, cx)
4872 })
4873 })
4874 }
4875
4876 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
4877 let Some((workspace, _)) = self.workspace.clone() else {
4878 return;
4879 };
4880 let Some(project) = self.project.clone() else {
4881 return;
4882 };
4883
4884 // Try to find a closest, enclosing node using tree-sitter that has a
4885 // task
4886 let Some((buffer, buffer_row, tasks)) = self
4887 .find_enclosing_node_task(cx)
4888 // Or find the task that's closest in row-distance.
4889 .or_else(|| self.find_closest_task(cx))
4890 else {
4891 return;
4892 };
4893
4894 let reveal_strategy = action.reveal;
4895 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
4896 cx.spawn(|_, mut cx| async move {
4897 let context = task_context.await?;
4898 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
4899
4900 let resolved = resolved_task.resolved.as_mut()?;
4901 resolved.reveal = reveal_strategy;
4902
4903 workspace
4904 .update(&mut cx, |workspace, cx| {
4905 workspace::tasks::schedule_resolved_task(
4906 workspace,
4907 task_source_kind,
4908 resolved_task,
4909 false,
4910 cx,
4911 );
4912 })
4913 .ok()
4914 })
4915 .detach();
4916 }
4917
4918 fn find_closest_task(
4919 &mut self,
4920 cx: &mut ViewContext<Self>,
4921 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
4922 let cursor_row = self.selections.newest_adjusted(cx).head().row;
4923
4924 let ((buffer_id, row), tasks) = self
4925 .tasks
4926 .iter()
4927 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
4928
4929 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
4930 let tasks = Arc::new(tasks.to_owned());
4931 Some((buffer, *row, tasks))
4932 }
4933
4934 fn find_enclosing_node_task(
4935 &mut self,
4936 cx: &mut ViewContext<Self>,
4937 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
4938 let snapshot = self.buffer.read(cx).snapshot(cx);
4939 let offset = self.selections.newest::<usize>(cx).head();
4940 let excerpt = snapshot.excerpt_containing(offset..offset)?;
4941 let buffer_id = excerpt.buffer().remote_id();
4942
4943 let layer = excerpt.buffer().syntax_layer_at(offset)?;
4944 let mut cursor = layer.node().walk();
4945
4946 while cursor.goto_first_child_for_byte(offset).is_some() {
4947 if cursor.node().end_byte() == offset {
4948 cursor.goto_next_sibling();
4949 }
4950 }
4951
4952 // Ascend to the smallest ancestor that contains the range and has a task.
4953 loop {
4954 let node = cursor.node();
4955 let node_range = node.byte_range();
4956 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
4957
4958 // Check if this node contains our offset
4959 if node_range.start <= offset && node_range.end >= offset {
4960 // If it contains offset, check for task
4961 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
4962 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
4963 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
4964 }
4965 }
4966
4967 if !cursor.goto_parent() {
4968 break;
4969 }
4970 }
4971 None
4972 }
4973
4974 fn render_run_indicator(
4975 &self,
4976 _style: &EditorStyle,
4977 is_active: bool,
4978 row: DisplayRow,
4979 cx: &mut ViewContext<Self>,
4980 ) -> IconButton {
4981 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
4982 .shape(ui::IconButtonShape::Square)
4983 .icon_size(IconSize::XSmall)
4984 .icon_color(Color::Muted)
4985 .toggle_state(is_active)
4986 .on_click(cx.listener(move |editor, _e, cx| {
4987 editor.focus(cx);
4988 editor.toggle_code_actions(
4989 &ToggleCodeActions {
4990 deployed_from_indicator: Some(row),
4991 },
4992 cx,
4993 );
4994 }))
4995 }
4996
4997 #[cfg(feature = "test-support")]
4998 pub fn context_menu_visible(&self) -> bool {
4999 self.context_menu
5000 .borrow()
5001 .as_ref()
5002 .map_or(false, |menu| menu.visible())
5003 }
5004
5005 fn context_menu_origin(&self, cursor_position: DisplayPoint) -> Option<ContextMenuOrigin> {
5006 self.context_menu
5007 .borrow()
5008 .as_ref()
5009 .map(|menu| menu.origin(cursor_position))
5010 }
5011
5012 fn render_context_menu(
5013 &self,
5014 style: &EditorStyle,
5015 max_height_in_lines: u32,
5016 cx: &mut ViewContext<Editor>,
5017 ) -> Option<AnyElement> {
5018 self.context_menu.borrow().as_ref().and_then(|menu| {
5019 if menu.visible() {
5020 Some(menu.render(
5021 style,
5022 max_height_in_lines,
5023 self.workspace.as_ref().map(|(w, _)| w.clone()),
5024 cx,
5025 ))
5026 } else {
5027 None
5028 }
5029 })
5030 }
5031
5032 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<CodeContextMenu> {
5033 cx.notify();
5034 self.completion_tasks.clear();
5035 self.context_menu.borrow_mut().take()
5036 }
5037
5038 fn show_snippet_choices(
5039 &mut self,
5040 choices: &Vec<String>,
5041 selection: Range<Anchor>,
5042 cx: &mut ViewContext<Self>,
5043 ) {
5044 if selection.start.buffer_id.is_none() {
5045 return;
5046 }
5047 let buffer_id = selection.start.buffer_id.unwrap();
5048 let buffer = self.buffer().read(cx).buffer(buffer_id);
5049 let id = post_inc(&mut self.next_completion_id);
5050
5051 if let Some(buffer) = buffer {
5052 *self.context_menu.borrow_mut() = Some(CodeContextMenu::Completions(
5053 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
5054 ));
5055 }
5056 }
5057
5058 pub fn insert_snippet(
5059 &mut self,
5060 insertion_ranges: &[Range<usize>],
5061 snippet: Snippet,
5062 cx: &mut ViewContext<Self>,
5063 ) -> Result<()> {
5064 struct Tabstop<T> {
5065 is_end_tabstop: bool,
5066 ranges: Vec<Range<T>>,
5067 choices: Option<Vec<String>>,
5068 }
5069
5070 let tabstops = self.buffer.update(cx, |buffer, cx| {
5071 let snippet_text: Arc<str> = snippet.text.clone().into();
5072 buffer.edit(
5073 insertion_ranges
5074 .iter()
5075 .cloned()
5076 .map(|range| (range, snippet_text.clone())),
5077 Some(AutoindentMode::EachLine),
5078 cx,
5079 );
5080
5081 let snapshot = &*buffer.read(cx);
5082 let snippet = &snippet;
5083 snippet
5084 .tabstops
5085 .iter()
5086 .map(|tabstop| {
5087 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5088 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5089 });
5090 let mut tabstop_ranges = tabstop
5091 .ranges
5092 .iter()
5093 .flat_map(|tabstop_range| {
5094 let mut delta = 0_isize;
5095 insertion_ranges.iter().map(move |insertion_range| {
5096 let insertion_start = insertion_range.start as isize + delta;
5097 delta +=
5098 snippet.text.len() as isize - insertion_range.len() as isize;
5099
5100 let start = ((insertion_start + tabstop_range.start) as usize)
5101 .min(snapshot.len());
5102 let end = ((insertion_start + tabstop_range.end) as usize)
5103 .min(snapshot.len());
5104 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5105 })
5106 })
5107 .collect::<Vec<_>>();
5108 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5109
5110 Tabstop {
5111 is_end_tabstop,
5112 ranges: tabstop_ranges,
5113 choices: tabstop.choices.clone(),
5114 }
5115 })
5116 .collect::<Vec<_>>()
5117 });
5118 if let Some(tabstop) = tabstops.first() {
5119 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5120 s.select_ranges(tabstop.ranges.iter().cloned());
5121 });
5122
5123 if let Some(choices) = &tabstop.choices {
5124 if let Some(selection) = tabstop.ranges.first() {
5125 self.show_snippet_choices(choices, selection.clone(), cx)
5126 }
5127 }
5128
5129 // If we're already at the last tabstop and it's at the end of the snippet,
5130 // we're done, we don't need to keep the state around.
5131 if !tabstop.is_end_tabstop {
5132 let choices = tabstops
5133 .iter()
5134 .map(|tabstop| tabstop.choices.clone())
5135 .collect();
5136
5137 let ranges = tabstops
5138 .into_iter()
5139 .map(|tabstop| tabstop.ranges)
5140 .collect::<Vec<_>>();
5141
5142 self.snippet_stack.push(SnippetState {
5143 active_index: 0,
5144 ranges,
5145 choices,
5146 });
5147 }
5148
5149 // Check whether the just-entered snippet ends with an auto-closable bracket.
5150 if self.autoclose_regions.is_empty() {
5151 let snapshot = self.buffer.read(cx).snapshot(cx);
5152 for selection in &mut self.selections.all::<Point>(cx) {
5153 let selection_head = selection.head();
5154 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5155 continue;
5156 };
5157
5158 let mut bracket_pair = None;
5159 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5160 let prev_chars = snapshot
5161 .reversed_chars_at(selection_head)
5162 .collect::<String>();
5163 for (pair, enabled) in scope.brackets() {
5164 if enabled
5165 && pair.close
5166 && prev_chars.starts_with(pair.start.as_str())
5167 && next_chars.starts_with(pair.end.as_str())
5168 {
5169 bracket_pair = Some(pair.clone());
5170 break;
5171 }
5172 }
5173 if let Some(pair) = bracket_pair {
5174 let start = snapshot.anchor_after(selection_head);
5175 let end = snapshot.anchor_after(selection_head);
5176 self.autoclose_regions.push(AutocloseRegion {
5177 selection_id: selection.id,
5178 range: start..end,
5179 pair,
5180 });
5181 }
5182 }
5183 }
5184 }
5185 Ok(())
5186 }
5187
5188 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5189 self.move_to_snippet_tabstop(Bias::Right, cx)
5190 }
5191
5192 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5193 self.move_to_snippet_tabstop(Bias::Left, cx)
5194 }
5195
5196 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5197 if let Some(mut snippet) = self.snippet_stack.pop() {
5198 match bias {
5199 Bias::Left => {
5200 if snippet.active_index > 0 {
5201 snippet.active_index -= 1;
5202 } else {
5203 self.snippet_stack.push(snippet);
5204 return false;
5205 }
5206 }
5207 Bias::Right => {
5208 if snippet.active_index + 1 < snippet.ranges.len() {
5209 snippet.active_index += 1;
5210 } else {
5211 self.snippet_stack.push(snippet);
5212 return false;
5213 }
5214 }
5215 }
5216 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5217 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5218 s.select_anchor_ranges(current_ranges.iter().cloned())
5219 });
5220
5221 if let Some(choices) = &snippet.choices[snippet.active_index] {
5222 if let Some(selection) = current_ranges.first() {
5223 self.show_snippet_choices(&choices, selection.clone(), cx);
5224 }
5225 }
5226
5227 // If snippet state is not at the last tabstop, push it back on the stack
5228 if snippet.active_index + 1 < snippet.ranges.len() {
5229 self.snippet_stack.push(snippet);
5230 }
5231 return true;
5232 }
5233 }
5234
5235 false
5236 }
5237
5238 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5239 self.transact(cx, |this, cx| {
5240 this.select_all(&SelectAll, cx);
5241 this.insert("", cx);
5242 });
5243 }
5244
5245 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5246 self.transact(cx, |this, cx| {
5247 this.select_autoclose_pair(cx);
5248 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5249 if !this.linked_edit_ranges.is_empty() {
5250 let selections = this.selections.all::<MultiBufferPoint>(cx);
5251 let snapshot = this.buffer.read(cx).snapshot(cx);
5252
5253 for selection in selections.iter() {
5254 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5255 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5256 if selection_start.buffer_id != selection_end.buffer_id {
5257 continue;
5258 }
5259 if let Some(ranges) =
5260 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5261 {
5262 for (buffer, entries) in ranges {
5263 linked_ranges.entry(buffer).or_default().extend(entries);
5264 }
5265 }
5266 }
5267 }
5268
5269 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5270 if !this.selections.line_mode {
5271 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5272 for selection in &mut selections {
5273 if selection.is_empty() {
5274 let old_head = selection.head();
5275 let mut new_head =
5276 movement::left(&display_map, old_head.to_display_point(&display_map))
5277 .to_point(&display_map);
5278 if let Some((buffer, line_buffer_range)) = display_map
5279 .buffer_snapshot
5280 .buffer_line_for_row(MultiBufferRow(old_head.row))
5281 {
5282 let indent_size =
5283 buffer.indent_size_for_line(line_buffer_range.start.row);
5284 let indent_len = match indent_size.kind {
5285 IndentKind::Space => {
5286 buffer.settings_at(line_buffer_range.start, cx).tab_size
5287 }
5288 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5289 };
5290 if old_head.column <= indent_size.len && old_head.column > 0 {
5291 let indent_len = indent_len.get();
5292 new_head = cmp::min(
5293 new_head,
5294 MultiBufferPoint::new(
5295 old_head.row,
5296 ((old_head.column - 1) / indent_len) * indent_len,
5297 ),
5298 );
5299 }
5300 }
5301
5302 selection.set_head(new_head, SelectionGoal::None);
5303 }
5304 }
5305 }
5306
5307 this.signature_help_state.set_backspace_pressed(true);
5308 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5309 this.insert("", cx);
5310 let empty_str: Arc<str> = Arc::from("");
5311 for (buffer, edits) in linked_ranges {
5312 let snapshot = buffer.read(cx).snapshot();
5313 use text::ToPoint as TP;
5314
5315 let edits = edits
5316 .into_iter()
5317 .map(|range| {
5318 let end_point = TP::to_point(&range.end, &snapshot);
5319 let mut start_point = TP::to_point(&range.start, &snapshot);
5320
5321 if end_point == start_point {
5322 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5323 .saturating_sub(1);
5324 start_point = TP::to_point(&offset, &snapshot);
5325 };
5326
5327 (start_point..end_point, empty_str.clone())
5328 })
5329 .sorted_by_key(|(range, _)| range.start)
5330 .collect::<Vec<_>>();
5331 buffer.update(cx, |this, cx| {
5332 this.edit(edits, None, cx);
5333 })
5334 }
5335 this.refresh_inline_completion(true, false, cx);
5336 linked_editing_ranges::refresh_linked_ranges(this, cx);
5337 });
5338 }
5339
5340 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5341 self.transact(cx, |this, cx| {
5342 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5343 let line_mode = s.line_mode;
5344 s.move_with(|map, selection| {
5345 if selection.is_empty() && !line_mode {
5346 let cursor = movement::right(map, selection.head());
5347 selection.end = cursor;
5348 selection.reversed = true;
5349 selection.goal = SelectionGoal::None;
5350 }
5351 })
5352 });
5353 this.insert("", cx);
5354 this.refresh_inline_completion(true, false, cx);
5355 });
5356 }
5357
5358 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5359 if self.move_to_prev_snippet_tabstop(cx) {
5360 return;
5361 }
5362
5363 self.outdent(&Outdent, cx);
5364 }
5365
5366 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5367 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5368 return;
5369 }
5370
5371 let mut selections = self.selections.all_adjusted(cx);
5372 let buffer = self.buffer.read(cx);
5373 let snapshot = buffer.snapshot(cx);
5374 let rows_iter = selections.iter().map(|s| s.head().row);
5375 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5376
5377 let mut edits = Vec::new();
5378 let mut prev_edited_row = 0;
5379 let mut row_delta = 0;
5380 for selection in &mut selections {
5381 if selection.start.row != prev_edited_row {
5382 row_delta = 0;
5383 }
5384 prev_edited_row = selection.end.row;
5385
5386 // If the selection is non-empty, then increase the indentation of the selected lines.
5387 if !selection.is_empty() {
5388 row_delta =
5389 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5390 continue;
5391 }
5392
5393 // If the selection is empty and the cursor is in the leading whitespace before the
5394 // suggested indentation, then auto-indent the line.
5395 let cursor = selection.head();
5396 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5397 if let Some(suggested_indent) =
5398 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5399 {
5400 if cursor.column < suggested_indent.len
5401 && cursor.column <= current_indent.len
5402 && current_indent.len <= suggested_indent.len
5403 {
5404 selection.start = Point::new(cursor.row, suggested_indent.len);
5405 selection.end = selection.start;
5406 if row_delta == 0 {
5407 edits.extend(Buffer::edit_for_indent_size_adjustment(
5408 cursor.row,
5409 current_indent,
5410 suggested_indent,
5411 ));
5412 row_delta = suggested_indent.len - current_indent.len;
5413 }
5414 continue;
5415 }
5416 }
5417
5418 // Otherwise, insert a hard or soft tab.
5419 let settings = buffer.settings_at(cursor, cx);
5420 let tab_size = if settings.hard_tabs {
5421 IndentSize::tab()
5422 } else {
5423 let tab_size = settings.tab_size.get();
5424 let char_column = snapshot
5425 .text_for_range(Point::new(cursor.row, 0)..cursor)
5426 .flat_map(str::chars)
5427 .count()
5428 + row_delta as usize;
5429 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5430 IndentSize::spaces(chars_to_next_tab_stop)
5431 };
5432 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5433 selection.end = selection.start;
5434 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5435 row_delta += tab_size.len;
5436 }
5437
5438 self.transact(cx, |this, cx| {
5439 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5440 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5441 this.refresh_inline_completion(true, false, cx);
5442 });
5443 }
5444
5445 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5446 if self.read_only(cx) {
5447 return;
5448 }
5449 let mut selections = self.selections.all::<Point>(cx);
5450 let mut prev_edited_row = 0;
5451 let mut row_delta = 0;
5452 let mut edits = Vec::new();
5453 let buffer = self.buffer.read(cx);
5454 let snapshot = buffer.snapshot(cx);
5455 for selection in &mut selections {
5456 if selection.start.row != prev_edited_row {
5457 row_delta = 0;
5458 }
5459 prev_edited_row = selection.end.row;
5460
5461 row_delta =
5462 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5463 }
5464
5465 self.transact(cx, |this, cx| {
5466 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5467 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5468 });
5469 }
5470
5471 fn indent_selection(
5472 buffer: &MultiBuffer,
5473 snapshot: &MultiBufferSnapshot,
5474 selection: &mut Selection<Point>,
5475 edits: &mut Vec<(Range<Point>, String)>,
5476 delta_for_start_row: u32,
5477 cx: &AppContext,
5478 ) -> u32 {
5479 let settings = buffer.settings_at(selection.start, cx);
5480 let tab_size = settings.tab_size.get();
5481 let indent_kind = if settings.hard_tabs {
5482 IndentKind::Tab
5483 } else {
5484 IndentKind::Space
5485 };
5486 let mut start_row = selection.start.row;
5487 let mut end_row = selection.end.row + 1;
5488
5489 // If a selection ends at the beginning of a line, don't indent
5490 // that last line.
5491 if selection.end.column == 0 && selection.end.row > selection.start.row {
5492 end_row -= 1;
5493 }
5494
5495 // Avoid re-indenting a row that has already been indented by a
5496 // previous selection, but still update this selection's column
5497 // to reflect that indentation.
5498 if delta_for_start_row > 0 {
5499 start_row += 1;
5500 selection.start.column += delta_for_start_row;
5501 if selection.end.row == selection.start.row {
5502 selection.end.column += delta_for_start_row;
5503 }
5504 }
5505
5506 let mut delta_for_end_row = 0;
5507 let has_multiple_rows = start_row + 1 != end_row;
5508 for row in start_row..end_row {
5509 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5510 let indent_delta = match (current_indent.kind, indent_kind) {
5511 (IndentKind::Space, IndentKind::Space) => {
5512 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5513 IndentSize::spaces(columns_to_next_tab_stop)
5514 }
5515 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5516 (_, IndentKind::Tab) => IndentSize::tab(),
5517 };
5518
5519 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5520 0
5521 } else {
5522 selection.start.column
5523 };
5524 let row_start = Point::new(row, start);
5525 edits.push((
5526 row_start..row_start,
5527 indent_delta.chars().collect::<String>(),
5528 ));
5529
5530 // Update this selection's endpoints to reflect the indentation.
5531 if row == selection.start.row {
5532 selection.start.column += indent_delta.len;
5533 }
5534 if row == selection.end.row {
5535 selection.end.column += indent_delta.len;
5536 delta_for_end_row = indent_delta.len;
5537 }
5538 }
5539
5540 if selection.start.row == selection.end.row {
5541 delta_for_start_row + delta_for_end_row
5542 } else {
5543 delta_for_end_row
5544 }
5545 }
5546
5547 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5548 if self.read_only(cx) {
5549 return;
5550 }
5551 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5552 let selections = self.selections.all::<Point>(cx);
5553 let mut deletion_ranges = Vec::new();
5554 let mut last_outdent = None;
5555 {
5556 let buffer = self.buffer.read(cx);
5557 let snapshot = buffer.snapshot(cx);
5558 for selection in &selections {
5559 let settings = buffer.settings_at(selection.start, cx);
5560 let tab_size = settings.tab_size.get();
5561 let mut rows = selection.spanned_rows(false, &display_map);
5562
5563 // Avoid re-outdenting a row that has already been outdented by a
5564 // previous selection.
5565 if let Some(last_row) = last_outdent {
5566 if last_row == rows.start {
5567 rows.start = rows.start.next_row();
5568 }
5569 }
5570 let has_multiple_rows = rows.len() > 1;
5571 for row in rows.iter_rows() {
5572 let indent_size = snapshot.indent_size_for_line(row);
5573 if indent_size.len > 0 {
5574 let deletion_len = match indent_size.kind {
5575 IndentKind::Space => {
5576 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5577 if columns_to_prev_tab_stop == 0 {
5578 tab_size
5579 } else {
5580 columns_to_prev_tab_stop
5581 }
5582 }
5583 IndentKind::Tab => 1,
5584 };
5585 let start = if has_multiple_rows
5586 || deletion_len > selection.start.column
5587 || indent_size.len < selection.start.column
5588 {
5589 0
5590 } else {
5591 selection.start.column - deletion_len
5592 };
5593 deletion_ranges.push(
5594 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5595 );
5596 last_outdent = Some(row);
5597 }
5598 }
5599 }
5600 }
5601
5602 self.transact(cx, |this, cx| {
5603 this.buffer.update(cx, |buffer, cx| {
5604 let empty_str: Arc<str> = Arc::default();
5605 buffer.edit(
5606 deletion_ranges
5607 .into_iter()
5608 .map(|range| (range, empty_str.clone())),
5609 None,
5610 cx,
5611 );
5612 });
5613 let selections = this.selections.all::<usize>(cx);
5614 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5615 });
5616 }
5617
5618 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
5619 if self.read_only(cx) {
5620 return;
5621 }
5622 let selections = self
5623 .selections
5624 .all::<usize>(cx)
5625 .into_iter()
5626 .map(|s| s.range());
5627
5628 self.transact(cx, |this, cx| {
5629 this.buffer.update(cx, |buffer, cx| {
5630 buffer.autoindent_ranges(selections, cx);
5631 });
5632 let selections = this.selections.all::<usize>(cx);
5633 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5634 });
5635 }
5636
5637 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5638 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5639 let selections = self.selections.all::<Point>(cx);
5640
5641 let mut new_cursors = Vec::new();
5642 let mut edit_ranges = Vec::new();
5643 let mut selections = selections.iter().peekable();
5644 while let Some(selection) = selections.next() {
5645 let mut rows = selection.spanned_rows(false, &display_map);
5646 let goal_display_column = selection.head().to_display_point(&display_map).column();
5647
5648 // Accumulate contiguous regions of rows that we want to delete.
5649 while let Some(next_selection) = selections.peek() {
5650 let next_rows = next_selection.spanned_rows(false, &display_map);
5651 if next_rows.start <= rows.end {
5652 rows.end = next_rows.end;
5653 selections.next().unwrap();
5654 } else {
5655 break;
5656 }
5657 }
5658
5659 let buffer = &display_map.buffer_snapshot;
5660 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5661 let edit_end;
5662 let cursor_buffer_row;
5663 if buffer.max_point().row >= rows.end.0 {
5664 // If there's a line after the range, delete the \n from the end of the row range
5665 // and position the cursor on the next line.
5666 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5667 cursor_buffer_row = rows.end;
5668 } else {
5669 // If there isn't a line after the range, delete the \n from the line before the
5670 // start of the row range and position the cursor there.
5671 edit_start = edit_start.saturating_sub(1);
5672 edit_end = buffer.len();
5673 cursor_buffer_row = rows.start.previous_row();
5674 }
5675
5676 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5677 *cursor.column_mut() =
5678 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5679
5680 new_cursors.push((
5681 selection.id,
5682 buffer.anchor_after(cursor.to_point(&display_map)),
5683 ));
5684 edit_ranges.push(edit_start..edit_end);
5685 }
5686
5687 self.transact(cx, |this, cx| {
5688 let buffer = this.buffer.update(cx, |buffer, cx| {
5689 let empty_str: Arc<str> = Arc::default();
5690 buffer.edit(
5691 edit_ranges
5692 .into_iter()
5693 .map(|range| (range, empty_str.clone())),
5694 None,
5695 cx,
5696 );
5697 buffer.snapshot(cx)
5698 });
5699 let new_selections = new_cursors
5700 .into_iter()
5701 .map(|(id, cursor)| {
5702 let cursor = cursor.to_point(&buffer);
5703 Selection {
5704 id,
5705 start: cursor,
5706 end: cursor,
5707 reversed: false,
5708 goal: SelectionGoal::None,
5709 }
5710 })
5711 .collect();
5712
5713 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5714 s.select(new_selections);
5715 });
5716 });
5717 }
5718
5719 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5720 if self.read_only(cx) {
5721 return;
5722 }
5723 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5724 for selection in self.selections.all::<Point>(cx) {
5725 let start = MultiBufferRow(selection.start.row);
5726 // Treat single line selections as if they include the next line. Otherwise this action
5727 // would do nothing for single line selections individual cursors.
5728 let end = if selection.start.row == selection.end.row {
5729 MultiBufferRow(selection.start.row + 1)
5730 } else {
5731 MultiBufferRow(selection.end.row)
5732 };
5733
5734 if let Some(last_row_range) = row_ranges.last_mut() {
5735 if start <= last_row_range.end {
5736 last_row_range.end = end;
5737 continue;
5738 }
5739 }
5740 row_ranges.push(start..end);
5741 }
5742
5743 let snapshot = self.buffer.read(cx).snapshot(cx);
5744 let mut cursor_positions = Vec::new();
5745 for row_range in &row_ranges {
5746 let anchor = snapshot.anchor_before(Point::new(
5747 row_range.end.previous_row().0,
5748 snapshot.line_len(row_range.end.previous_row()),
5749 ));
5750 cursor_positions.push(anchor..anchor);
5751 }
5752
5753 self.transact(cx, |this, cx| {
5754 for row_range in row_ranges.into_iter().rev() {
5755 for row in row_range.iter_rows().rev() {
5756 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5757 let next_line_row = row.next_row();
5758 let indent = snapshot.indent_size_for_line(next_line_row);
5759 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5760
5761 let replace = if snapshot.line_len(next_line_row) > indent.len {
5762 " "
5763 } else {
5764 ""
5765 };
5766
5767 this.buffer.update(cx, |buffer, cx| {
5768 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5769 });
5770 }
5771 }
5772
5773 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5774 s.select_anchor_ranges(cursor_positions)
5775 });
5776 });
5777 }
5778
5779 pub fn sort_lines_case_sensitive(
5780 &mut self,
5781 _: &SortLinesCaseSensitive,
5782 cx: &mut ViewContext<Self>,
5783 ) {
5784 self.manipulate_lines(cx, |lines| lines.sort())
5785 }
5786
5787 pub fn sort_lines_case_insensitive(
5788 &mut self,
5789 _: &SortLinesCaseInsensitive,
5790 cx: &mut ViewContext<Self>,
5791 ) {
5792 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5793 }
5794
5795 pub fn unique_lines_case_insensitive(
5796 &mut self,
5797 _: &UniqueLinesCaseInsensitive,
5798 cx: &mut ViewContext<Self>,
5799 ) {
5800 self.manipulate_lines(cx, |lines| {
5801 let mut seen = HashSet::default();
5802 lines.retain(|line| seen.insert(line.to_lowercase()));
5803 })
5804 }
5805
5806 pub fn unique_lines_case_sensitive(
5807 &mut self,
5808 _: &UniqueLinesCaseSensitive,
5809 cx: &mut ViewContext<Self>,
5810 ) {
5811 self.manipulate_lines(cx, |lines| {
5812 let mut seen = HashSet::default();
5813 lines.retain(|line| seen.insert(*line));
5814 })
5815 }
5816
5817 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
5818 let mut revert_changes = HashMap::default();
5819 let snapshot = self.snapshot(cx);
5820 for hunk in hunks_for_ranges(
5821 Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter(),
5822 &snapshot,
5823 ) {
5824 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5825 }
5826 if !revert_changes.is_empty() {
5827 self.transact(cx, |editor, cx| {
5828 editor.revert(revert_changes, cx);
5829 });
5830 }
5831 }
5832
5833 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
5834 let Some(project) = self.project.clone() else {
5835 return;
5836 };
5837 self.reload(project, cx).detach_and_notify_err(cx);
5838 }
5839
5840 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5841 let revert_changes = self.gather_revert_changes(&self.selections.all(cx), cx);
5842 if !revert_changes.is_empty() {
5843 self.transact(cx, |editor, cx| {
5844 editor.revert(revert_changes, cx);
5845 });
5846 }
5847 }
5848
5849 fn revert_hunk(&mut self, hunk: HoveredHunk, cx: &mut ViewContext<Editor>) {
5850 let snapshot = self.buffer.read(cx).read(cx);
5851 if let Some(hunk) = crate::hunk_diff::to_diff_hunk(&hunk, &snapshot) {
5852 drop(snapshot);
5853 let mut revert_changes = HashMap::default();
5854 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5855 if !revert_changes.is_empty() {
5856 self.revert(revert_changes, cx)
5857 }
5858 }
5859 }
5860
5861 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5862 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5863 let project_path = buffer.read(cx).project_path(cx)?;
5864 let project = self.project.as_ref()?.read(cx);
5865 let entry = project.entry_for_path(&project_path, cx)?;
5866 let parent = match &entry.canonical_path {
5867 Some(canonical_path) => canonical_path.to_path_buf(),
5868 None => project.absolute_path(&project_path, cx)?,
5869 }
5870 .parent()?
5871 .to_path_buf();
5872 Some(parent)
5873 }) {
5874 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5875 }
5876 }
5877
5878 fn gather_revert_changes(
5879 &mut self,
5880 selections: &[Selection<Point>],
5881 cx: &mut ViewContext<'_, Editor>,
5882 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5883 let mut revert_changes = HashMap::default();
5884 let snapshot = self.snapshot(cx);
5885 for hunk in hunks_for_selections(&snapshot, selections) {
5886 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5887 }
5888 revert_changes
5889 }
5890
5891 pub fn prepare_revert_change(
5892 &mut self,
5893 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5894 hunk: &MultiBufferDiffHunk,
5895 cx: &AppContext,
5896 ) -> Option<()> {
5897 let buffer = self.buffer.read(cx).buffer(hunk.buffer_id)?;
5898 let buffer = buffer.read(cx);
5899 let change_set = &self.diff_map.diff_bases.get(&hunk.buffer_id)?.change_set;
5900 let original_text = change_set
5901 .read(cx)
5902 .base_text
5903 .as_ref()?
5904 .read(cx)
5905 .as_rope()
5906 .slice(hunk.diff_base_byte_range.clone());
5907 let buffer_snapshot = buffer.snapshot();
5908 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5909 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5910 probe
5911 .0
5912 .start
5913 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5914 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5915 }) {
5916 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5917 Some(())
5918 } else {
5919 None
5920 }
5921 }
5922
5923 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5924 self.manipulate_lines(cx, |lines| lines.reverse())
5925 }
5926
5927 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5928 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5929 }
5930
5931 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5932 where
5933 Fn: FnMut(&mut Vec<&str>),
5934 {
5935 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5936 let buffer = self.buffer.read(cx).snapshot(cx);
5937
5938 let mut edits = Vec::new();
5939
5940 let selections = self.selections.all::<Point>(cx);
5941 let mut selections = selections.iter().peekable();
5942 let mut contiguous_row_selections = Vec::new();
5943 let mut new_selections = Vec::new();
5944 let mut added_lines = 0;
5945 let mut removed_lines = 0;
5946
5947 while let Some(selection) = selections.next() {
5948 let (start_row, end_row) = consume_contiguous_rows(
5949 &mut contiguous_row_selections,
5950 selection,
5951 &display_map,
5952 &mut selections,
5953 );
5954
5955 let start_point = Point::new(start_row.0, 0);
5956 let end_point = Point::new(
5957 end_row.previous_row().0,
5958 buffer.line_len(end_row.previous_row()),
5959 );
5960 let text = buffer
5961 .text_for_range(start_point..end_point)
5962 .collect::<String>();
5963
5964 let mut lines = text.split('\n').collect_vec();
5965
5966 let lines_before = lines.len();
5967 callback(&mut lines);
5968 let lines_after = lines.len();
5969
5970 edits.push((start_point..end_point, lines.join("\n")));
5971
5972 // Selections must change based on added and removed line count
5973 let start_row =
5974 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
5975 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
5976 new_selections.push(Selection {
5977 id: selection.id,
5978 start: start_row,
5979 end: end_row,
5980 goal: SelectionGoal::None,
5981 reversed: selection.reversed,
5982 });
5983
5984 if lines_after > lines_before {
5985 added_lines += lines_after - lines_before;
5986 } else if lines_before > lines_after {
5987 removed_lines += lines_before - lines_after;
5988 }
5989 }
5990
5991 self.transact(cx, |this, cx| {
5992 let buffer = this.buffer.update(cx, |buffer, cx| {
5993 buffer.edit(edits, None, cx);
5994 buffer.snapshot(cx)
5995 });
5996
5997 // Recalculate offsets on newly edited buffer
5998 let new_selections = new_selections
5999 .iter()
6000 .map(|s| {
6001 let start_point = Point::new(s.start.0, 0);
6002 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6003 Selection {
6004 id: s.id,
6005 start: buffer.point_to_offset(start_point),
6006 end: buffer.point_to_offset(end_point),
6007 goal: s.goal,
6008 reversed: s.reversed,
6009 }
6010 })
6011 .collect();
6012
6013 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6014 s.select(new_selections);
6015 });
6016
6017 this.request_autoscroll(Autoscroll::fit(), cx);
6018 });
6019 }
6020
6021 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6022 self.manipulate_text(cx, |text| text.to_uppercase())
6023 }
6024
6025 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6026 self.manipulate_text(cx, |text| text.to_lowercase())
6027 }
6028
6029 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6030 self.manipulate_text(cx, |text| {
6031 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6032 // https://github.com/rutrum/convert-case/issues/16
6033 text.split('\n')
6034 .map(|line| line.to_case(Case::Title))
6035 .join("\n")
6036 })
6037 }
6038
6039 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6040 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6041 }
6042
6043 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6044 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6045 }
6046
6047 pub fn convert_to_upper_camel_case(
6048 &mut self,
6049 _: &ConvertToUpperCamelCase,
6050 cx: &mut ViewContext<Self>,
6051 ) {
6052 self.manipulate_text(cx, |text| {
6053 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6054 // https://github.com/rutrum/convert-case/issues/16
6055 text.split('\n')
6056 .map(|line| line.to_case(Case::UpperCamel))
6057 .join("\n")
6058 })
6059 }
6060
6061 pub fn convert_to_lower_camel_case(
6062 &mut self,
6063 _: &ConvertToLowerCamelCase,
6064 cx: &mut ViewContext<Self>,
6065 ) {
6066 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6067 }
6068
6069 pub fn convert_to_opposite_case(
6070 &mut self,
6071 _: &ConvertToOppositeCase,
6072 cx: &mut ViewContext<Self>,
6073 ) {
6074 self.manipulate_text(cx, |text| {
6075 text.chars()
6076 .fold(String::with_capacity(text.len()), |mut t, c| {
6077 if c.is_uppercase() {
6078 t.extend(c.to_lowercase());
6079 } else {
6080 t.extend(c.to_uppercase());
6081 }
6082 t
6083 })
6084 })
6085 }
6086
6087 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6088 where
6089 Fn: FnMut(&str) -> String,
6090 {
6091 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6092 let buffer = self.buffer.read(cx).snapshot(cx);
6093
6094 let mut new_selections = Vec::new();
6095 let mut edits = Vec::new();
6096 let mut selection_adjustment = 0i32;
6097
6098 for selection in self.selections.all::<usize>(cx) {
6099 let selection_is_empty = selection.is_empty();
6100
6101 let (start, end) = if selection_is_empty {
6102 let word_range = movement::surrounding_word(
6103 &display_map,
6104 selection.start.to_display_point(&display_map),
6105 );
6106 let start = word_range.start.to_offset(&display_map, Bias::Left);
6107 let end = word_range.end.to_offset(&display_map, Bias::Left);
6108 (start, end)
6109 } else {
6110 (selection.start, selection.end)
6111 };
6112
6113 let text = buffer.text_for_range(start..end).collect::<String>();
6114 let old_length = text.len() as i32;
6115 let text = callback(&text);
6116
6117 new_selections.push(Selection {
6118 start: (start as i32 - selection_adjustment) as usize,
6119 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6120 goal: SelectionGoal::None,
6121 ..selection
6122 });
6123
6124 selection_adjustment += old_length - text.len() as i32;
6125
6126 edits.push((start..end, text));
6127 }
6128
6129 self.transact(cx, |this, cx| {
6130 this.buffer.update(cx, |buffer, cx| {
6131 buffer.edit(edits, None, cx);
6132 });
6133
6134 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6135 s.select(new_selections);
6136 });
6137
6138 this.request_autoscroll(Autoscroll::fit(), cx);
6139 });
6140 }
6141
6142 pub fn duplicate(&mut self, upwards: bool, whole_lines: bool, cx: &mut ViewContext<Self>) {
6143 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6144 let buffer = &display_map.buffer_snapshot;
6145 let selections = self.selections.all::<Point>(cx);
6146
6147 let mut edits = Vec::new();
6148 let mut selections_iter = selections.iter().peekable();
6149 while let Some(selection) = selections_iter.next() {
6150 let mut rows = selection.spanned_rows(false, &display_map);
6151 // duplicate line-wise
6152 if whole_lines || selection.start == selection.end {
6153 // Avoid duplicating the same lines twice.
6154 while let Some(next_selection) = selections_iter.peek() {
6155 let next_rows = next_selection.spanned_rows(false, &display_map);
6156 if next_rows.start < rows.end {
6157 rows.end = next_rows.end;
6158 selections_iter.next().unwrap();
6159 } else {
6160 break;
6161 }
6162 }
6163
6164 // Copy the text from the selected row region and splice it either at the start
6165 // or end of the region.
6166 let start = Point::new(rows.start.0, 0);
6167 let end = Point::new(
6168 rows.end.previous_row().0,
6169 buffer.line_len(rows.end.previous_row()),
6170 );
6171 let text = buffer
6172 .text_for_range(start..end)
6173 .chain(Some("\n"))
6174 .collect::<String>();
6175 let insert_location = if upwards {
6176 Point::new(rows.end.0, 0)
6177 } else {
6178 start
6179 };
6180 edits.push((insert_location..insert_location, text));
6181 } else {
6182 // duplicate character-wise
6183 let start = selection.start;
6184 let end = selection.end;
6185 let text = buffer.text_for_range(start..end).collect::<String>();
6186 edits.push((selection.end..selection.end, text));
6187 }
6188 }
6189
6190 self.transact(cx, |this, cx| {
6191 this.buffer.update(cx, |buffer, cx| {
6192 buffer.edit(edits, None, cx);
6193 });
6194
6195 this.request_autoscroll(Autoscroll::fit(), cx);
6196 });
6197 }
6198
6199 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6200 self.duplicate(true, true, cx);
6201 }
6202
6203 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6204 self.duplicate(false, true, cx);
6205 }
6206
6207 pub fn duplicate_selection(&mut self, _: &DuplicateSelection, cx: &mut ViewContext<Self>) {
6208 self.duplicate(false, false, cx);
6209 }
6210
6211 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6212 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6213 let buffer = self.buffer.read(cx).snapshot(cx);
6214
6215 let mut edits = Vec::new();
6216 let mut unfold_ranges = Vec::new();
6217 let mut refold_creases = Vec::new();
6218
6219 let selections = self.selections.all::<Point>(cx);
6220 let mut selections = selections.iter().peekable();
6221 let mut contiguous_row_selections = Vec::new();
6222 let mut new_selections = Vec::new();
6223
6224 while let Some(selection) = selections.next() {
6225 // Find all the selections that span a contiguous row range
6226 let (start_row, end_row) = consume_contiguous_rows(
6227 &mut contiguous_row_selections,
6228 selection,
6229 &display_map,
6230 &mut selections,
6231 );
6232
6233 // Move the text spanned by the row range to be before the line preceding the row range
6234 if start_row.0 > 0 {
6235 let range_to_move = Point::new(
6236 start_row.previous_row().0,
6237 buffer.line_len(start_row.previous_row()),
6238 )
6239 ..Point::new(
6240 end_row.previous_row().0,
6241 buffer.line_len(end_row.previous_row()),
6242 );
6243 let insertion_point = display_map
6244 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6245 .0;
6246
6247 // Don't move lines across excerpts
6248 if buffer
6249 .excerpt_boundaries_in_range((
6250 Bound::Excluded(insertion_point),
6251 Bound::Included(range_to_move.end),
6252 ))
6253 .next()
6254 .is_none()
6255 {
6256 let text = buffer
6257 .text_for_range(range_to_move.clone())
6258 .flat_map(|s| s.chars())
6259 .skip(1)
6260 .chain(['\n'])
6261 .collect::<String>();
6262
6263 edits.push((
6264 buffer.anchor_after(range_to_move.start)
6265 ..buffer.anchor_before(range_to_move.end),
6266 String::new(),
6267 ));
6268 let insertion_anchor = buffer.anchor_after(insertion_point);
6269 edits.push((insertion_anchor..insertion_anchor, text));
6270
6271 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6272
6273 // Move selections up
6274 new_selections.extend(contiguous_row_selections.drain(..).map(
6275 |mut selection| {
6276 selection.start.row -= row_delta;
6277 selection.end.row -= row_delta;
6278 selection
6279 },
6280 ));
6281
6282 // Move folds up
6283 unfold_ranges.push(range_to_move.clone());
6284 for fold in display_map.folds_in_range(
6285 buffer.anchor_before(range_to_move.start)
6286 ..buffer.anchor_after(range_to_move.end),
6287 ) {
6288 let mut start = fold.range.start.to_point(&buffer);
6289 let mut end = fold.range.end.to_point(&buffer);
6290 start.row -= row_delta;
6291 end.row -= row_delta;
6292 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6293 }
6294 }
6295 }
6296
6297 // If we didn't move line(s), preserve the existing selections
6298 new_selections.append(&mut contiguous_row_selections);
6299 }
6300
6301 self.transact(cx, |this, cx| {
6302 this.unfold_ranges(&unfold_ranges, true, true, cx);
6303 this.buffer.update(cx, |buffer, cx| {
6304 for (range, text) in edits {
6305 buffer.edit([(range, text)], None, cx);
6306 }
6307 });
6308 this.fold_creases(refold_creases, true, cx);
6309 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6310 s.select(new_selections);
6311 })
6312 });
6313 }
6314
6315 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6316 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6317 let buffer = self.buffer.read(cx).snapshot(cx);
6318
6319 let mut edits = Vec::new();
6320 let mut unfold_ranges = Vec::new();
6321 let mut refold_creases = Vec::new();
6322
6323 let selections = self.selections.all::<Point>(cx);
6324 let mut selections = selections.iter().peekable();
6325 let mut contiguous_row_selections = Vec::new();
6326 let mut new_selections = Vec::new();
6327
6328 while let Some(selection) = selections.next() {
6329 // Find all the selections that span a contiguous row range
6330 let (start_row, end_row) = consume_contiguous_rows(
6331 &mut contiguous_row_selections,
6332 selection,
6333 &display_map,
6334 &mut selections,
6335 );
6336
6337 // Move the text spanned by the row range to be after the last line of the row range
6338 if end_row.0 <= buffer.max_point().row {
6339 let range_to_move =
6340 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6341 let insertion_point = display_map
6342 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6343 .0;
6344
6345 // Don't move lines across excerpt boundaries
6346 if buffer
6347 .excerpt_boundaries_in_range((
6348 Bound::Excluded(range_to_move.start),
6349 Bound::Included(insertion_point),
6350 ))
6351 .next()
6352 .is_none()
6353 {
6354 let mut text = String::from("\n");
6355 text.extend(buffer.text_for_range(range_to_move.clone()));
6356 text.pop(); // Drop trailing newline
6357 edits.push((
6358 buffer.anchor_after(range_to_move.start)
6359 ..buffer.anchor_before(range_to_move.end),
6360 String::new(),
6361 ));
6362 let insertion_anchor = buffer.anchor_after(insertion_point);
6363 edits.push((insertion_anchor..insertion_anchor, text));
6364
6365 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6366
6367 // Move selections down
6368 new_selections.extend(contiguous_row_selections.drain(..).map(
6369 |mut selection| {
6370 selection.start.row += row_delta;
6371 selection.end.row += row_delta;
6372 selection
6373 },
6374 ));
6375
6376 // Move folds down
6377 unfold_ranges.push(range_to_move.clone());
6378 for fold in display_map.folds_in_range(
6379 buffer.anchor_before(range_to_move.start)
6380 ..buffer.anchor_after(range_to_move.end),
6381 ) {
6382 let mut start = fold.range.start.to_point(&buffer);
6383 let mut end = fold.range.end.to_point(&buffer);
6384 start.row += row_delta;
6385 end.row += row_delta;
6386 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6387 }
6388 }
6389 }
6390
6391 // If we didn't move line(s), preserve the existing selections
6392 new_selections.append(&mut contiguous_row_selections);
6393 }
6394
6395 self.transact(cx, |this, cx| {
6396 this.unfold_ranges(&unfold_ranges, true, true, cx);
6397 this.buffer.update(cx, |buffer, cx| {
6398 for (range, text) in edits {
6399 buffer.edit([(range, text)], None, cx);
6400 }
6401 });
6402 this.fold_creases(refold_creases, true, cx);
6403 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6404 });
6405 }
6406
6407 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6408 let text_layout_details = &self.text_layout_details(cx);
6409 self.transact(cx, |this, cx| {
6410 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6411 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6412 let line_mode = s.line_mode;
6413 s.move_with(|display_map, selection| {
6414 if !selection.is_empty() || line_mode {
6415 return;
6416 }
6417
6418 let mut head = selection.head();
6419 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6420 if head.column() == display_map.line_len(head.row()) {
6421 transpose_offset = display_map
6422 .buffer_snapshot
6423 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6424 }
6425
6426 if transpose_offset == 0 {
6427 return;
6428 }
6429
6430 *head.column_mut() += 1;
6431 head = display_map.clip_point(head, Bias::Right);
6432 let goal = SelectionGoal::HorizontalPosition(
6433 display_map
6434 .x_for_display_point(head, text_layout_details)
6435 .into(),
6436 );
6437 selection.collapse_to(head, goal);
6438
6439 let transpose_start = display_map
6440 .buffer_snapshot
6441 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6442 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6443 let transpose_end = display_map
6444 .buffer_snapshot
6445 .clip_offset(transpose_offset + 1, Bias::Right);
6446 if let Some(ch) =
6447 display_map.buffer_snapshot.chars_at(transpose_start).next()
6448 {
6449 edits.push((transpose_start..transpose_offset, String::new()));
6450 edits.push((transpose_end..transpose_end, ch.to_string()));
6451 }
6452 }
6453 });
6454 edits
6455 });
6456 this.buffer
6457 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6458 let selections = this.selections.all::<usize>(cx);
6459 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6460 s.select(selections);
6461 });
6462 });
6463 }
6464
6465 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6466 self.rewrap_impl(IsVimMode::No, cx)
6467 }
6468
6469 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
6470 let buffer = self.buffer.read(cx).snapshot(cx);
6471 let selections = self.selections.all::<Point>(cx);
6472 let mut selections = selections.iter().peekable();
6473
6474 let mut edits = Vec::new();
6475 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6476
6477 while let Some(selection) = selections.next() {
6478 let mut start_row = selection.start.row;
6479 let mut end_row = selection.end.row;
6480
6481 // Skip selections that overlap with a range that has already been rewrapped.
6482 let selection_range = start_row..end_row;
6483 if rewrapped_row_ranges
6484 .iter()
6485 .any(|range| range.overlaps(&selection_range))
6486 {
6487 continue;
6488 }
6489
6490 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
6491
6492 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6493 match language_scope.language_name().0.as_ref() {
6494 "Markdown" | "Plain Text" => {
6495 should_rewrap = true;
6496 }
6497 _ => {}
6498 }
6499 }
6500
6501 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
6502
6503 // Since not all lines in the selection may be at the same indent
6504 // level, choose the indent size that is the most common between all
6505 // of the lines.
6506 //
6507 // If there is a tie, we use the deepest indent.
6508 let (indent_size, indent_end) = {
6509 let mut indent_size_occurrences = HashMap::default();
6510 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6511
6512 for row in start_row..=end_row {
6513 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6514 rows_by_indent_size.entry(indent).or_default().push(row);
6515 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6516 }
6517
6518 let indent_size = indent_size_occurrences
6519 .into_iter()
6520 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
6521 .map(|(indent, _)| indent)
6522 .unwrap_or_default();
6523 let row = rows_by_indent_size[&indent_size][0];
6524 let indent_end = Point::new(row, indent_size.len);
6525
6526 (indent_size, indent_end)
6527 };
6528
6529 let mut line_prefix = indent_size.chars().collect::<String>();
6530
6531 if let Some(comment_prefix) =
6532 buffer
6533 .language_scope_at(selection.head())
6534 .and_then(|language| {
6535 language
6536 .line_comment_prefixes()
6537 .iter()
6538 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6539 .cloned()
6540 })
6541 {
6542 line_prefix.push_str(&comment_prefix);
6543 should_rewrap = true;
6544 }
6545
6546 if !should_rewrap {
6547 continue;
6548 }
6549
6550 if selection.is_empty() {
6551 'expand_upwards: while start_row > 0 {
6552 let prev_row = start_row - 1;
6553 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6554 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6555 {
6556 start_row = prev_row;
6557 } else {
6558 break 'expand_upwards;
6559 }
6560 }
6561
6562 'expand_downwards: while end_row < buffer.max_point().row {
6563 let next_row = end_row + 1;
6564 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6565 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6566 {
6567 end_row = next_row;
6568 } else {
6569 break 'expand_downwards;
6570 }
6571 }
6572 }
6573
6574 let start = Point::new(start_row, 0);
6575 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6576 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6577 let Some(lines_without_prefixes) = selection_text
6578 .lines()
6579 .map(|line| {
6580 line.strip_prefix(&line_prefix)
6581 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6582 .ok_or_else(|| {
6583 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6584 })
6585 })
6586 .collect::<Result<Vec<_>, _>>()
6587 .log_err()
6588 else {
6589 continue;
6590 };
6591
6592 let wrap_column = buffer
6593 .settings_at(Point::new(start_row, 0), cx)
6594 .preferred_line_length as usize;
6595 let wrapped_text = wrap_with_prefix(
6596 line_prefix,
6597 lines_without_prefixes.join(" "),
6598 wrap_column,
6599 tab_size,
6600 );
6601
6602 // TODO: should always use char-based diff while still supporting cursor behavior that
6603 // matches vim.
6604 let diff = match is_vim_mode {
6605 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
6606 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
6607 };
6608 let mut offset = start.to_offset(&buffer);
6609 let mut moved_since_edit = true;
6610
6611 for change in diff.iter_all_changes() {
6612 let value = change.value();
6613 match change.tag() {
6614 ChangeTag::Equal => {
6615 offset += value.len();
6616 moved_since_edit = true;
6617 }
6618 ChangeTag::Delete => {
6619 let start = buffer.anchor_after(offset);
6620 let end = buffer.anchor_before(offset + value.len());
6621
6622 if moved_since_edit {
6623 edits.push((start..end, String::new()));
6624 } else {
6625 edits.last_mut().unwrap().0.end = end;
6626 }
6627
6628 offset += value.len();
6629 moved_since_edit = false;
6630 }
6631 ChangeTag::Insert => {
6632 if moved_since_edit {
6633 let anchor = buffer.anchor_after(offset);
6634 edits.push((anchor..anchor, value.to_string()));
6635 } else {
6636 edits.last_mut().unwrap().1.push_str(value);
6637 }
6638
6639 moved_since_edit = false;
6640 }
6641 }
6642 }
6643
6644 rewrapped_row_ranges.push(start_row..=end_row);
6645 }
6646
6647 self.buffer
6648 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6649 }
6650
6651 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
6652 let mut text = String::new();
6653 let buffer = self.buffer.read(cx).snapshot(cx);
6654 let mut selections = self.selections.all::<Point>(cx);
6655 let mut clipboard_selections = Vec::with_capacity(selections.len());
6656 {
6657 let max_point = buffer.max_point();
6658 let mut is_first = true;
6659 for selection in &mut selections {
6660 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6661 if is_entire_line {
6662 selection.start = Point::new(selection.start.row, 0);
6663 if !selection.is_empty() && selection.end.column == 0 {
6664 selection.end = cmp::min(max_point, selection.end);
6665 } else {
6666 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6667 }
6668 selection.goal = SelectionGoal::None;
6669 }
6670 if is_first {
6671 is_first = false;
6672 } else {
6673 text += "\n";
6674 }
6675 let mut len = 0;
6676 for chunk in buffer.text_for_range(selection.start..selection.end) {
6677 text.push_str(chunk);
6678 len += chunk.len();
6679 }
6680 clipboard_selections.push(ClipboardSelection {
6681 len,
6682 is_entire_line,
6683 first_line_indent: buffer
6684 .indent_size_for_line(MultiBufferRow(selection.start.row))
6685 .len,
6686 });
6687 }
6688 }
6689
6690 self.transact(cx, |this, cx| {
6691 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6692 s.select(selections);
6693 });
6694 this.insert("", cx);
6695 });
6696 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
6697 }
6698
6699 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6700 let item = self.cut_common(cx);
6701 cx.write_to_clipboard(item);
6702 }
6703
6704 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
6705 self.change_selections(None, cx, |s| {
6706 s.move_with(|snapshot, sel| {
6707 if sel.is_empty() {
6708 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
6709 }
6710 });
6711 });
6712 let item = self.cut_common(cx);
6713 cx.set_global(KillRing(item))
6714 }
6715
6716 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
6717 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
6718 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
6719 (kill_ring.text().to_string(), kill_ring.metadata_json())
6720 } else {
6721 return;
6722 }
6723 } else {
6724 return;
6725 };
6726 self.do_paste(&text, metadata, false, cx);
6727 }
6728
6729 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6730 let selections = self.selections.all::<Point>(cx);
6731 let buffer = self.buffer.read(cx).read(cx);
6732 let mut text = String::new();
6733
6734 let mut clipboard_selections = Vec::with_capacity(selections.len());
6735 {
6736 let max_point = buffer.max_point();
6737 let mut is_first = true;
6738 for selection in selections.iter() {
6739 let mut start = selection.start;
6740 let mut end = selection.end;
6741 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6742 if is_entire_line {
6743 start = Point::new(start.row, 0);
6744 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6745 }
6746 if is_first {
6747 is_first = false;
6748 } else {
6749 text += "\n";
6750 }
6751 let mut len = 0;
6752 for chunk in buffer.text_for_range(start..end) {
6753 text.push_str(chunk);
6754 len += chunk.len();
6755 }
6756 clipboard_selections.push(ClipboardSelection {
6757 len,
6758 is_entire_line,
6759 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6760 });
6761 }
6762 }
6763
6764 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6765 text,
6766 clipboard_selections,
6767 ));
6768 }
6769
6770 pub fn do_paste(
6771 &mut self,
6772 text: &String,
6773 clipboard_selections: Option<Vec<ClipboardSelection>>,
6774 handle_entire_lines: bool,
6775 cx: &mut ViewContext<Self>,
6776 ) {
6777 if self.read_only(cx) {
6778 return;
6779 }
6780
6781 let clipboard_text = Cow::Borrowed(text);
6782
6783 self.transact(cx, |this, cx| {
6784 if let Some(mut clipboard_selections) = clipboard_selections {
6785 let old_selections = this.selections.all::<usize>(cx);
6786 let all_selections_were_entire_line =
6787 clipboard_selections.iter().all(|s| s.is_entire_line);
6788 let first_selection_indent_column =
6789 clipboard_selections.first().map(|s| s.first_line_indent);
6790 if clipboard_selections.len() != old_selections.len() {
6791 clipboard_selections.drain(..);
6792 }
6793 let cursor_offset = this.selections.last::<usize>(cx).head();
6794 let mut auto_indent_on_paste = true;
6795
6796 this.buffer.update(cx, |buffer, cx| {
6797 let snapshot = buffer.read(cx);
6798 auto_indent_on_paste =
6799 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
6800
6801 let mut start_offset = 0;
6802 let mut edits = Vec::new();
6803 let mut original_indent_columns = Vec::new();
6804 for (ix, selection) in old_selections.iter().enumerate() {
6805 let to_insert;
6806 let entire_line;
6807 let original_indent_column;
6808 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6809 let end_offset = start_offset + clipboard_selection.len;
6810 to_insert = &clipboard_text[start_offset..end_offset];
6811 entire_line = clipboard_selection.is_entire_line;
6812 start_offset = end_offset + 1;
6813 original_indent_column = Some(clipboard_selection.first_line_indent);
6814 } else {
6815 to_insert = clipboard_text.as_str();
6816 entire_line = all_selections_were_entire_line;
6817 original_indent_column = first_selection_indent_column
6818 }
6819
6820 // If the corresponding selection was empty when this slice of the
6821 // clipboard text was written, then the entire line containing the
6822 // selection was copied. If this selection is also currently empty,
6823 // then paste the line before the current line of the buffer.
6824 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6825 let column = selection.start.to_point(&snapshot).column as usize;
6826 let line_start = selection.start - column;
6827 line_start..line_start
6828 } else {
6829 selection.range()
6830 };
6831
6832 edits.push((range, to_insert));
6833 original_indent_columns.extend(original_indent_column);
6834 }
6835 drop(snapshot);
6836
6837 buffer.edit(
6838 edits,
6839 if auto_indent_on_paste {
6840 Some(AutoindentMode::Block {
6841 original_indent_columns,
6842 })
6843 } else {
6844 None
6845 },
6846 cx,
6847 );
6848 });
6849
6850 let selections = this.selections.all::<usize>(cx);
6851 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6852 } else {
6853 this.insert(&clipboard_text, cx);
6854 }
6855 });
6856 }
6857
6858 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6859 if let Some(item) = cx.read_from_clipboard() {
6860 let entries = item.entries();
6861
6862 match entries.first() {
6863 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
6864 // of all the pasted entries.
6865 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
6866 .do_paste(
6867 clipboard_string.text(),
6868 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
6869 true,
6870 cx,
6871 ),
6872 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
6873 }
6874 }
6875 }
6876
6877 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6878 if self.read_only(cx) {
6879 return;
6880 }
6881
6882 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6883 if let Some((selections, _)) =
6884 self.selection_history.transaction(transaction_id).cloned()
6885 {
6886 self.change_selections(None, cx, |s| {
6887 s.select_anchors(selections.to_vec());
6888 });
6889 }
6890 self.request_autoscroll(Autoscroll::fit(), cx);
6891 self.unmark_text(cx);
6892 self.refresh_inline_completion(true, false, cx);
6893 cx.emit(EditorEvent::Edited { transaction_id });
6894 cx.emit(EditorEvent::TransactionUndone { transaction_id });
6895 }
6896 }
6897
6898 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6899 if self.read_only(cx) {
6900 return;
6901 }
6902
6903 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6904 if let Some((_, Some(selections))) =
6905 self.selection_history.transaction(transaction_id).cloned()
6906 {
6907 self.change_selections(None, cx, |s| {
6908 s.select_anchors(selections.to_vec());
6909 });
6910 }
6911 self.request_autoscroll(Autoscroll::fit(), cx);
6912 self.unmark_text(cx);
6913 self.refresh_inline_completion(true, false, cx);
6914 cx.emit(EditorEvent::Edited { transaction_id });
6915 }
6916 }
6917
6918 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6919 self.buffer
6920 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6921 }
6922
6923 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6924 self.buffer
6925 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6926 }
6927
6928 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6929 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6930 let line_mode = s.line_mode;
6931 s.move_with(|map, selection| {
6932 let cursor = if selection.is_empty() && !line_mode {
6933 movement::left(map, selection.start)
6934 } else {
6935 selection.start
6936 };
6937 selection.collapse_to(cursor, SelectionGoal::None);
6938 });
6939 })
6940 }
6941
6942 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6943 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6944 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6945 })
6946 }
6947
6948 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6949 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6950 let line_mode = s.line_mode;
6951 s.move_with(|map, selection| {
6952 let cursor = if selection.is_empty() && !line_mode {
6953 movement::right(map, selection.end)
6954 } else {
6955 selection.end
6956 };
6957 selection.collapse_to(cursor, SelectionGoal::None)
6958 });
6959 })
6960 }
6961
6962 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6963 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6964 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6965 })
6966 }
6967
6968 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6969 if self.take_rename(true, cx).is_some() {
6970 return;
6971 }
6972
6973 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6974 cx.propagate();
6975 return;
6976 }
6977
6978 let text_layout_details = &self.text_layout_details(cx);
6979 let selection_count = self.selections.count();
6980 let first_selection = self.selections.first_anchor();
6981
6982 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6983 let line_mode = s.line_mode;
6984 s.move_with(|map, selection| {
6985 if !selection.is_empty() && !line_mode {
6986 selection.goal = SelectionGoal::None;
6987 }
6988 let (cursor, goal) = movement::up(
6989 map,
6990 selection.start,
6991 selection.goal,
6992 false,
6993 text_layout_details,
6994 );
6995 selection.collapse_to(cursor, goal);
6996 });
6997 });
6998
6999 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7000 {
7001 cx.propagate();
7002 }
7003 }
7004
7005 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7006 if self.take_rename(true, cx).is_some() {
7007 return;
7008 }
7009
7010 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7011 cx.propagate();
7012 return;
7013 }
7014
7015 let text_layout_details = &self.text_layout_details(cx);
7016
7017 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7018 let line_mode = s.line_mode;
7019 s.move_with(|map, selection| {
7020 if !selection.is_empty() && !line_mode {
7021 selection.goal = SelectionGoal::None;
7022 }
7023 let (cursor, goal) = movement::up_by_rows(
7024 map,
7025 selection.start,
7026 action.lines,
7027 selection.goal,
7028 false,
7029 text_layout_details,
7030 );
7031 selection.collapse_to(cursor, goal);
7032 });
7033 })
7034 }
7035
7036 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7037 if self.take_rename(true, cx).is_some() {
7038 return;
7039 }
7040
7041 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7042 cx.propagate();
7043 return;
7044 }
7045
7046 let text_layout_details = &self.text_layout_details(cx);
7047
7048 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7049 let line_mode = s.line_mode;
7050 s.move_with(|map, selection| {
7051 if !selection.is_empty() && !line_mode {
7052 selection.goal = SelectionGoal::None;
7053 }
7054 let (cursor, goal) = movement::down_by_rows(
7055 map,
7056 selection.start,
7057 action.lines,
7058 selection.goal,
7059 false,
7060 text_layout_details,
7061 );
7062 selection.collapse_to(cursor, goal);
7063 });
7064 })
7065 }
7066
7067 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7068 let text_layout_details = &self.text_layout_details(cx);
7069 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7070 s.move_heads_with(|map, head, goal| {
7071 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7072 })
7073 })
7074 }
7075
7076 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7077 let text_layout_details = &self.text_layout_details(cx);
7078 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7079 s.move_heads_with(|map, head, goal| {
7080 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7081 })
7082 })
7083 }
7084
7085 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7086 let Some(row_count) = self.visible_row_count() else {
7087 return;
7088 };
7089
7090 let text_layout_details = &self.text_layout_details(cx);
7091
7092 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7093 s.move_heads_with(|map, head, goal| {
7094 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7095 })
7096 })
7097 }
7098
7099 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7100 if self.take_rename(true, cx).is_some() {
7101 return;
7102 }
7103
7104 if self
7105 .context_menu
7106 .borrow_mut()
7107 .as_mut()
7108 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7109 .unwrap_or(false)
7110 {
7111 return;
7112 }
7113
7114 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7115 cx.propagate();
7116 return;
7117 }
7118
7119 let Some(row_count) = self.visible_row_count() else {
7120 return;
7121 };
7122
7123 let autoscroll = if action.center_cursor {
7124 Autoscroll::center()
7125 } else {
7126 Autoscroll::fit()
7127 };
7128
7129 let text_layout_details = &self.text_layout_details(cx);
7130
7131 self.change_selections(Some(autoscroll), cx, |s| {
7132 let line_mode = s.line_mode;
7133 s.move_with(|map, selection| {
7134 if !selection.is_empty() && !line_mode {
7135 selection.goal = SelectionGoal::None;
7136 }
7137 let (cursor, goal) = movement::up_by_rows(
7138 map,
7139 selection.end,
7140 row_count,
7141 selection.goal,
7142 false,
7143 text_layout_details,
7144 );
7145 selection.collapse_to(cursor, goal);
7146 });
7147 });
7148 }
7149
7150 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7151 let text_layout_details = &self.text_layout_details(cx);
7152 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7153 s.move_heads_with(|map, head, goal| {
7154 movement::up(map, head, goal, false, text_layout_details)
7155 })
7156 })
7157 }
7158
7159 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7160 self.take_rename(true, cx);
7161
7162 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7163 cx.propagate();
7164 return;
7165 }
7166
7167 let text_layout_details = &self.text_layout_details(cx);
7168 let selection_count = self.selections.count();
7169 let first_selection = self.selections.first_anchor();
7170
7171 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7172 let line_mode = s.line_mode;
7173 s.move_with(|map, selection| {
7174 if !selection.is_empty() && !line_mode {
7175 selection.goal = SelectionGoal::None;
7176 }
7177 let (cursor, goal) = movement::down(
7178 map,
7179 selection.end,
7180 selection.goal,
7181 false,
7182 text_layout_details,
7183 );
7184 selection.collapse_to(cursor, goal);
7185 });
7186 });
7187
7188 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7189 {
7190 cx.propagate();
7191 }
7192 }
7193
7194 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7195 let Some(row_count) = self.visible_row_count() else {
7196 return;
7197 };
7198
7199 let text_layout_details = &self.text_layout_details(cx);
7200
7201 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7202 s.move_heads_with(|map, head, goal| {
7203 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7204 })
7205 })
7206 }
7207
7208 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7209 if self.take_rename(true, cx).is_some() {
7210 return;
7211 }
7212
7213 if self
7214 .context_menu
7215 .borrow_mut()
7216 .as_mut()
7217 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7218 .unwrap_or(false)
7219 {
7220 return;
7221 }
7222
7223 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7224 cx.propagate();
7225 return;
7226 }
7227
7228 let Some(row_count) = self.visible_row_count() else {
7229 return;
7230 };
7231
7232 let autoscroll = if action.center_cursor {
7233 Autoscroll::center()
7234 } else {
7235 Autoscroll::fit()
7236 };
7237
7238 let text_layout_details = &self.text_layout_details(cx);
7239 self.change_selections(Some(autoscroll), cx, |s| {
7240 let line_mode = s.line_mode;
7241 s.move_with(|map, selection| {
7242 if !selection.is_empty() && !line_mode {
7243 selection.goal = SelectionGoal::None;
7244 }
7245 let (cursor, goal) = movement::down_by_rows(
7246 map,
7247 selection.end,
7248 row_count,
7249 selection.goal,
7250 false,
7251 text_layout_details,
7252 );
7253 selection.collapse_to(cursor, goal);
7254 });
7255 });
7256 }
7257
7258 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7259 let text_layout_details = &self.text_layout_details(cx);
7260 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7261 s.move_heads_with(|map, head, goal| {
7262 movement::down(map, head, goal, false, text_layout_details)
7263 })
7264 });
7265 }
7266
7267 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7268 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7269 context_menu.select_first(self.completion_provider.as_deref(), cx);
7270 }
7271 }
7272
7273 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7274 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7275 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7276 }
7277 }
7278
7279 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7280 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7281 context_menu.select_next(self.completion_provider.as_deref(), cx);
7282 }
7283 }
7284
7285 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7286 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7287 context_menu.select_last(self.completion_provider.as_deref(), cx);
7288 }
7289 }
7290
7291 pub fn move_to_previous_word_start(
7292 &mut self,
7293 _: &MoveToPreviousWordStart,
7294 cx: &mut ViewContext<Self>,
7295 ) {
7296 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7297 s.move_cursors_with(|map, head, _| {
7298 (
7299 movement::previous_word_start(map, head),
7300 SelectionGoal::None,
7301 )
7302 });
7303 })
7304 }
7305
7306 pub fn move_to_previous_subword_start(
7307 &mut self,
7308 _: &MoveToPreviousSubwordStart,
7309 cx: &mut ViewContext<Self>,
7310 ) {
7311 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7312 s.move_cursors_with(|map, head, _| {
7313 (
7314 movement::previous_subword_start(map, head),
7315 SelectionGoal::None,
7316 )
7317 });
7318 })
7319 }
7320
7321 pub fn select_to_previous_word_start(
7322 &mut self,
7323 _: &SelectToPreviousWordStart,
7324 cx: &mut ViewContext<Self>,
7325 ) {
7326 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7327 s.move_heads_with(|map, head, _| {
7328 (
7329 movement::previous_word_start(map, head),
7330 SelectionGoal::None,
7331 )
7332 });
7333 })
7334 }
7335
7336 pub fn select_to_previous_subword_start(
7337 &mut self,
7338 _: &SelectToPreviousSubwordStart,
7339 cx: &mut ViewContext<Self>,
7340 ) {
7341 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7342 s.move_heads_with(|map, head, _| {
7343 (
7344 movement::previous_subword_start(map, head),
7345 SelectionGoal::None,
7346 )
7347 });
7348 })
7349 }
7350
7351 pub fn delete_to_previous_word_start(
7352 &mut self,
7353 action: &DeleteToPreviousWordStart,
7354 cx: &mut ViewContext<Self>,
7355 ) {
7356 self.transact(cx, |this, cx| {
7357 this.select_autoclose_pair(cx);
7358 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7359 let line_mode = s.line_mode;
7360 s.move_with(|map, selection| {
7361 if selection.is_empty() && !line_mode {
7362 let cursor = if action.ignore_newlines {
7363 movement::previous_word_start(map, selection.head())
7364 } else {
7365 movement::previous_word_start_or_newline(map, selection.head())
7366 };
7367 selection.set_head(cursor, SelectionGoal::None);
7368 }
7369 });
7370 });
7371 this.insert("", cx);
7372 });
7373 }
7374
7375 pub fn delete_to_previous_subword_start(
7376 &mut self,
7377 _: &DeleteToPreviousSubwordStart,
7378 cx: &mut ViewContext<Self>,
7379 ) {
7380 self.transact(cx, |this, cx| {
7381 this.select_autoclose_pair(cx);
7382 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7383 let line_mode = s.line_mode;
7384 s.move_with(|map, selection| {
7385 if selection.is_empty() && !line_mode {
7386 let cursor = movement::previous_subword_start(map, selection.head());
7387 selection.set_head(cursor, SelectionGoal::None);
7388 }
7389 });
7390 });
7391 this.insert("", cx);
7392 });
7393 }
7394
7395 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7396 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7397 s.move_cursors_with(|map, head, _| {
7398 (movement::next_word_end(map, head), SelectionGoal::None)
7399 });
7400 })
7401 }
7402
7403 pub fn move_to_next_subword_end(
7404 &mut self,
7405 _: &MoveToNextSubwordEnd,
7406 cx: &mut ViewContext<Self>,
7407 ) {
7408 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7409 s.move_cursors_with(|map, head, _| {
7410 (movement::next_subword_end(map, head), SelectionGoal::None)
7411 });
7412 })
7413 }
7414
7415 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7416 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7417 s.move_heads_with(|map, head, _| {
7418 (movement::next_word_end(map, head), SelectionGoal::None)
7419 });
7420 })
7421 }
7422
7423 pub fn select_to_next_subword_end(
7424 &mut self,
7425 _: &SelectToNextSubwordEnd,
7426 cx: &mut ViewContext<Self>,
7427 ) {
7428 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7429 s.move_heads_with(|map, head, _| {
7430 (movement::next_subword_end(map, head), SelectionGoal::None)
7431 });
7432 })
7433 }
7434
7435 pub fn delete_to_next_word_end(
7436 &mut self,
7437 action: &DeleteToNextWordEnd,
7438 cx: &mut ViewContext<Self>,
7439 ) {
7440 self.transact(cx, |this, cx| {
7441 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7442 let line_mode = s.line_mode;
7443 s.move_with(|map, selection| {
7444 if selection.is_empty() && !line_mode {
7445 let cursor = if action.ignore_newlines {
7446 movement::next_word_end(map, selection.head())
7447 } else {
7448 movement::next_word_end_or_newline(map, selection.head())
7449 };
7450 selection.set_head(cursor, SelectionGoal::None);
7451 }
7452 });
7453 });
7454 this.insert("", cx);
7455 });
7456 }
7457
7458 pub fn delete_to_next_subword_end(
7459 &mut self,
7460 _: &DeleteToNextSubwordEnd,
7461 cx: &mut ViewContext<Self>,
7462 ) {
7463 self.transact(cx, |this, cx| {
7464 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7465 s.move_with(|map, selection| {
7466 if selection.is_empty() {
7467 let cursor = movement::next_subword_end(map, selection.head());
7468 selection.set_head(cursor, SelectionGoal::None);
7469 }
7470 });
7471 });
7472 this.insert("", cx);
7473 });
7474 }
7475
7476 pub fn move_to_beginning_of_line(
7477 &mut self,
7478 action: &MoveToBeginningOfLine,
7479 cx: &mut ViewContext<Self>,
7480 ) {
7481 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7482 s.move_cursors_with(|map, head, _| {
7483 (
7484 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7485 SelectionGoal::None,
7486 )
7487 });
7488 })
7489 }
7490
7491 pub fn select_to_beginning_of_line(
7492 &mut self,
7493 action: &SelectToBeginningOfLine,
7494 cx: &mut ViewContext<Self>,
7495 ) {
7496 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7497 s.move_heads_with(|map, head, _| {
7498 (
7499 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7500 SelectionGoal::None,
7501 )
7502 });
7503 });
7504 }
7505
7506 pub fn delete_to_beginning_of_line(
7507 &mut self,
7508 _: &DeleteToBeginningOfLine,
7509 cx: &mut ViewContext<Self>,
7510 ) {
7511 self.transact(cx, |this, cx| {
7512 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7513 s.move_with(|_, selection| {
7514 selection.reversed = true;
7515 });
7516 });
7517
7518 this.select_to_beginning_of_line(
7519 &SelectToBeginningOfLine {
7520 stop_at_soft_wraps: false,
7521 },
7522 cx,
7523 );
7524 this.backspace(&Backspace, cx);
7525 });
7526 }
7527
7528 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7529 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7530 s.move_cursors_with(|map, head, _| {
7531 (
7532 movement::line_end(map, head, action.stop_at_soft_wraps),
7533 SelectionGoal::None,
7534 )
7535 });
7536 })
7537 }
7538
7539 pub fn select_to_end_of_line(
7540 &mut self,
7541 action: &SelectToEndOfLine,
7542 cx: &mut ViewContext<Self>,
7543 ) {
7544 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7545 s.move_heads_with(|map, head, _| {
7546 (
7547 movement::line_end(map, head, action.stop_at_soft_wraps),
7548 SelectionGoal::None,
7549 )
7550 });
7551 })
7552 }
7553
7554 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7555 self.transact(cx, |this, cx| {
7556 this.select_to_end_of_line(
7557 &SelectToEndOfLine {
7558 stop_at_soft_wraps: false,
7559 },
7560 cx,
7561 );
7562 this.delete(&Delete, cx);
7563 });
7564 }
7565
7566 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7567 self.transact(cx, |this, cx| {
7568 this.select_to_end_of_line(
7569 &SelectToEndOfLine {
7570 stop_at_soft_wraps: false,
7571 },
7572 cx,
7573 );
7574 this.cut(&Cut, cx);
7575 });
7576 }
7577
7578 pub fn move_to_start_of_paragraph(
7579 &mut self,
7580 _: &MoveToStartOfParagraph,
7581 cx: &mut ViewContext<Self>,
7582 ) {
7583 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7584 cx.propagate();
7585 return;
7586 }
7587
7588 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7589 s.move_with(|map, selection| {
7590 selection.collapse_to(
7591 movement::start_of_paragraph(map, selection.head(), 1),
7592 SelectionGoal::None,
7593 )
7594 });
7595 })
7596 }
7597
7598 pub fn move_to_end_of_paragraph(
7599 &mut self,
7600 _: &MoveToEndOfParagraph,
7601 cx: &mut ViewContext<Self>,
7602 ) {
7603 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7604 cx.propagate();
7605 return;
7606 }
7607
7608 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7609 s.move_with(|map, selection| {
7610 selection.collapse_to(
7611 movement::end_of_paragraph(map, selection.head(), 1),
7612 SelectionGoal::None,
7613 )
7614 });
7615 })
7616 }
7617
7618 pub fn select_to_start_of_paragraph(
7619 &mut self,
7620 _: &SelectToStartOfParagraph,
7621 cx: &mut ViewContext<Self>,
7622 ) {
7623 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7624 cx.propagate();
7625 return;
7626 }
7627
7628 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7629 s.move_heads_with(|map, head, _| {
7630 (
7631 movement::start_of_paragraph(map, head, 1),
7632 SelectionGoal::None,
7633 )
7634 });
7635 })
7636 }
7637
7638 pub fn select_to_end_of_paragraph(
7639 &mut self,
7640 _: &SelectToEndOfParagraph,
7641 cx: &mut ViewContext<Self>,
7642 ) {
7643 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7644 cx.propagate();
7645 return;
7646 }
7647
7648 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7649 s.move_heads_with(|map, head, _| {
7650 (
7651 movement::end_of_paragraph(map, head, 1),
7652 SelectionGoal::None,
7653 )
7654 });
7655 })
7656 }
7657
7658 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7659 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7660 cx.propagate();
7661 return;
7662 }
7663
7664 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7665 s.select_ranges(vec![0..0]);
7666 });
7667 }
7668
7669 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7670 let mut selection = self.selections.last::<Point>(cx);
7671 selection.set_head(Point::zero(), SelectionGoal::None);
7672
7673 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7674 s.select(vec![selection]);
7675 });
7676 }
7677
7678 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7679 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7680 cx.propagate();
7681 return;
7682 }
7683
7684 let cursor = self.buffer.read(cx).read(cx).len();
7685 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7686 s.select_ranges(vec![cursor..cursor])
7687 });
7688 }
7689
7690 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7691 self.nav_history = nav_history;
7692 }
7693
7694 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7695 self.nav_history.as_ref()
7696 }
7697
7698 fn push_to_nav_history(
7699 &mut self,
7700 cursor_anchor: Anchor,
7701 new_position: Option<Point>,
7702 cx: &mut ViewContext<Self>,
7703 ) {
7704 if let Some(nav_history) = self.nav_history.as_mut() {
7705 let buffer = self.buffer.read(cx).read(cx);
7706 let cursor_position = cursor_anchor.to_point(&buffer);
7707 let scroll_state = self.scroll_manager.anchor();
7708 let scroll_top_row = scroll_state.top_row(&buffer);
7709 drop(buffer);
7710
7711 if let Some(new_position) = new_position {
7712 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7713 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7714 return;
7715 }
7716 }
7717
7718 nav_history.push(
7719 Some(NavigationData {
7720 cursor_anchor,
7721 cursor_position,
7722 scroll_anchor: scroll_state,
7723 scroll_top_row,
7724 }),
7725 cx,
7726 );
7727 }
7728 }
7729
7730 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7731 let buffer = self.buffer.read(cx).snapshot(cx);
7732 let mut selection = self.selections.first::<usize>(cx);
7733 selection.set_head(buffer.len(), SelectionGoal::None);
7734 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7735 s.select(vec![selection]);
7736 });
7737 }
7738
7739 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7740 let end = self.buffer.read(cx).read(cx).len();
7741 self.change_selections(None, cx, |s| {
7742 s.select_ranges(vec![0..end]);
7743 });
7744 }
7745
7746 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7747 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7748 let mut selections = self.selections.all::<Point>(cx);
7749 let max_point = display_map.buffer_snapshot.max_point();
7750 for selection in &mut selections {
7751 let rows = selection.spanned_rows(true, &display_map);
7752 selection.start = Point::new(rows.start.0, 0);
7753 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7754 selection.reversed = false;
7755 }
7756 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7757 s.select(selections);
7758 });
7759 }
7760
7761 pub fn split_selection_into_lines(
7762 &mut self,
7763 _: &SplitSelectionIntoLines,
7764 cx: &mut ViewContext<Self>,
7765 ) {
7766 let mut to_unfold = Vec::new();
7767 let mut new_selection_ranges = Vec::new();
7768 {
7769 let selections = self.selections.all::<Point>(cx);
7770 let buffer = self.buffer.read(cx).read(cx);
7771 for selection in selections {
7772 for row in selection.start.row..selection.end.row {
7773 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7774 new_selection_ranges.push(cursor..cursor);
7775 }
7776 new_selection_ranges.push(selection.end..selection.end);
7777 to_unfold.push(selection.start..selection.end);
7778 }
7779 }
7780 self.unfold_ranges(&to_unfold, true, true, cx);
7781 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7782 s.select_ranges(new_selection_ranges);
7783 });
7784 }
7785
7786 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7787 self.add_selection(true, cx);
7788 }
7789
7790 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7791 self.add_selection(false, cx);
7792 }
7793
7794 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7795 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7796 let mut selections = self.selections.all::<Point>(cx);
7797 let text_layout_details = self.text_layout_details(cx);
7798 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7799 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7800 let range = oldest_selection.display_range(&display_map).sorted();
7801
7802 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7803 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7804 let positions = start_x.min(end_x)..start_x.max(end_x);
7805
7806 selections.clear();
7807 let mut stack = Vec::new();
7808 for row in range.start.row().0..=range.end.row().0 {
7809 if let Some(selection) = self.selections.build_columnar_selection(
7810 &display_map,
7811 DisplayRow(row),
7812 &positions,
7813 oldest_selection.reversed,
7814 &text_layout_details,
7815 ) {
7816 stack.push(selection.id);
7817 selections.push(selection);
7818 }
7819 }
7820
7821 if above {
7822 stack.reverse();
7823 }
7824
7825 AddSelectionsState { above, stack }
7826 });
7827
7828 let last_added_selection = *state.stack.last().unwrap();
7829 let mut new_selections = Vec::new();
7830 if above == state.above {
7831 let end_row = if above {
7832 DisplayRow(0)
7833 } else {
7834 display_map.max_point().row()
7835 };
7836
7837 'outer: for selection in selections {
7838 if selection.id == last_added_selection {
7839 let range = selection.display_range(&display_map).sorted();
7840 debug_assert_eq!(range.start.row(), range.end.row());
7841 let mut row = range.start.row();
7842 let positions =
7843 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7844 px(start)..px(end)
7845 } else {
7846 let start_x =
7847 display_map.x_for_display_point(range.start, &text_layout_details);
7848 let end_x =
7849 display_map.x_for_display_point(range.end, &text_layout_details);
7850 start_x.min(end_x)..start_x.max(end_x)
7851 };
7852
7853 while row != end_row {
7854 if above {
7855 row.0 -= 1;
7856 } else {
7857 row.0 += 1;
7858 }
7859
7860 if let Some(new_selection) = self.selections.build_columnar_selection(
7861 &display_map,
7862 row,
7863 &positions,
7864 selection.reversed,
7865 &text_layout_details,
7866 ) {
7867 state.stack.push(new_selection.id);
7868 if above {
7869 new_selections.push(new_selection);
7870 new_selections.push(selection);
7871 } else {
7872 new_selections.push(selection);
7873 new_selections.push(new_selection);
7874 }
7875
7876 continue 'outer;
7877 }
7878 }
7879 }
7880
7881 new_selections.push(selection);
7882 }
7883 } else {
7884 new_selections = selections;
7885 new_selections.retain(|s| s.id != last_added_selection);
7886 state.stack.pop();
7887 }
7888
7889 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7890 s.select(new_selections);
7891 });
7892 if state.stack.len() > 1 {
7893 self.add_selections_state = Some(state);
7894 }
7895 }
7896
7897 pub fn select_next_match_internal(
7898 &mut self,
7899 display_map: &DisplaySnapshot,
7900 replace_newest: bool,
7901 autoscroll: Option<Autoscroll>,
7902 cx: &mut ViewContext<Self>,
7903 ) -> Result<()> {
7904 fn select_next_match_ranges(
7905 this: &mut Editor,
7906 range: Range<usize>,
7907 replace_newest: bool,
7908 auto_scroll: Option<Autoscroll>,
7909 cx: &mut ViewContext<Editor>,
7910 ) {
7911 this.unfold_ranges(&[range.clone()], false, true, cx);
7912 this.change_selections(auto_scroll, cx, |s| {
7913 if replace_newest {
7914 s.delete(s.newest_anchor().id);
7915 }
7916 s.insert_range(range.clone());
7917 });
7918 }
7919
7920 let buffer = &display_map.buffer_snapshot;
7921 let mut selections = self.selections.all::<usize>(cx);
7922 if let Some(mut select_next_state) = self.select_next_state.take() {
7923 let query = &select_next_state.query;
7924 if !select_next_state.done {
7925 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7926 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7927 let mut next_selected_range = None;
7928
7929 let bytes_after_last_selection =
7930 buffer.bytes_in_range(last_selection.end..buffer.len());
7931 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7932 let query_matches = query
7933 .stream_find_iter(bytes_after_last_selection)
7934 .map(|result| (last_selection.end, result))
7935 .chain(
7936 query
7937 .stream_find_iter(bytes_before_first_selection)
7938 .map(|result| (0, result)),
7939 );
7940
7941 for (start_offset, query_match) in query_matches {
7942 let query_match = query_match.unwrap(); // can only fail due to I/O
7943 let offset_range =
7944 start_offset + query_match.start()..start_offset + query_match.end();
7945 let display_range = offset_range.start.to_display_point(display_map)
7946 ..offset_range.end.to_display_point(display_map);
7947
7948 if !select_next_state.wordwise
7949 || (!movement::is_inside_word(display_map, display_range.start)
7950 && !movement::is_inside_word(display_map, display_range.end))
7951 {
7952 // TODO: This is n^2, because we might check all the selections
7953 if !selections
7954 .iter()
7955 .any(|selection| selection.range().overlaps(&offset_range))
7956 {
7957 next_selected_range = Some(offset_range);
7958 break;
7959 }
7960 }
7961 }
7962
7963 if let Some(next_selected_range) = next_selected_range {
7964 select_next_match_ranges(
7965 self,
7966 next_selected_range,
7967 replace_newest,
7968 autoscroll,
7969 cx,
7970 );
7971 } else {
7972 select_next_state.done = true;
7973 }
7974 }
7975
7976 self.select_next_state = Some(select_next_state);
7977 } else {
7978 let mut only_carets = true;
7979 let mut same_text_selected = true;
7980 let mut selected_text = None;
7981
7982 let mut selections_iter = selections.iter().peekable();
7983 while let Some(selection) = selections_iter.next() {
7984 if selection.start != selection.end {
7985 only_carets = false;
7986 }
7987
7988 if same_text_selected {
7989 if selected_text.is_none() {
7990 selected_text =
7991 Some(buffer.text_for_range(selection.range()).collect::<String>());
7992 }
7993
7994 if let Some(next_selection) = selections_iter.peek() {
7995 if next_selection.range().len() == selection.range().len() {
7996 let next_selected_text = buffer
7997 .text_for_range(next_selection.range())
7998 .collect::<String>();
7999 if Some(next_selected_text) != selected_text {
8000 same_text_selected = false;
8001 selected_text = None;
8002 }
8003 } else {
8004 same_text_selected = false;
8005 selected_text = None;
8006 }
8007 }
8008 }
8009 }
8010
8011 if only_carets {
8012 for selection in &mut selections {
8013 let word_range = movement::surrounding_word(
8014 display_map,
8015 selection.start.to_display_point(display_map),
8016 );
8017 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8018 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8019 selection.goal = SelectionGoal::None;
8020 selection.reversed = false;
8021 select_next_match_ranges(
8022 self,
8023 selection.start..selection.end,
8024 replace_newest,
8025 autoscroll,
8026 cx,
8027 );
8028 }
8029
8030 if selections.len() == 1 {
8031 let selection = selections
8032 .last()
8033 .expect("ensured that there's only one selection");
8034 let query = buffer
8035 .text_for_range(selection.start..selection.end)
8036 .collect::<String>();
8037 let is_empty = query.is_empty();
8038 let select_state = SelectNextState {
8039 query: AhoCorasick::new(&[query])?,
8040 wordwise: true,
8041 done: is_empty,
8042 };
8043 self.select_next_state = Some(select_state);
8044 } else {
8045 self.select_next_state = None;
8046 }
8047 } else if let Some(selected_text) = selected_text {
8048 self.select_next_state = Some(SelectNextState {
8049 query: AhoCorasick::new(&[selected_text])?,
8050 wordwise: false,
8051 done: false,
8052 });
8053 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8054 }
8055 }
8056 Ok(())
8057 }
8058
8059 pub fn select_all_matches(
8060 &mut self,
8061 _action: &SelectAllMatches,
8062 cx: &mut ViewContext<Self>,
8063 ) -> Result<()> {
8064 self.push_to_selection_history();
8065 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8066
8067 self.select_next_match_internal(&display_map, false, None, cx)?;
8068 let Some(select_next_state) = self.select_next_state.as_mut() else {
8069 return Ok(());
8070 };
8071 if select_next_state.done {
8072 return Ok(());
8073 }
8074
8075 let mut new_selections = self.selections.all::<usize>(cx);
8076
8077 let buffer = &display_map.buffer_snapshot;
8078 let query_matches = select_next_state
8079 .query
8080 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8081
8082 for query_match in query_matches {
8083 let query_match = query_match.unwrap(); // can only fail due to I/O
8084 let offset_range = query_match.start()..query_match.end();
8085 let display_range = offset_range.start.to_display_point(&display_map)
8086 ..offset_range.end.to_display_point(&display_map);
8087
8088 if !select_next_state.wordwise
8089 || (!movement::is_inside_word(&display_map, display_range.start)
8090 && !movement::is_inside_word(&display_map, display_range.end))
8091 {
8092 self.selections.change_with(cx, |selections| {
8093 new_selections.push(Selection {
8094 id: selections.new_selection_id(),
8095 start: offset_range.start,
8096 end: offset_range.end,
8097 reversed: false,
8098 goal: SelectionGoal::None,
8099 });
8100 });
8101 }
8102 }
8103
8104 new_selections.sort_by_key(|selection| selection.start);
8105 let mut ix = 0;
8106 while ix + 1 < new_selections.len() {
8107 let current_selection = &new_selections[ix];
8108 let next_selection = &new_selections[ix + 1];
8109 if current_selection.range().overlaps(&next_selection.range()) {
8110 if current_selection.id < next_selection.id {
8111 new_selections.remove(ix + 1);
8112 } else {
8113 new_selections.remove(ix);
8114 }
8115 } else {
8116 ix += 1;
8117 }
8118 }
8119
8120 select_next_state.done = true;
8121 self.unfold_ranges(
8122 &new_selections
8123 .iter()
8124 .map(|selection| selection.range())
8125 .collect::<Vec<_>>(),
8126 false,
8127 false,
8128 cx,
8129 );
8130 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8131 selections.select(new_selections)
8132 });
8133
8134 Ok(())
8135 }
8136
8137 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8138 self.push_to_selection_history();
8139 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8140 self.select_next_match_internal(
8141 &display_map,
8142 action.replace_newest,
8143 Some(Autoscroll::newest()),
8144 cx,
8145 )?;
8146 Ok(())
8147 }
8148
8149 pub fn select_previous(
8150 &mut self,
8151 action: &SelectPrevious,
8152 cx: &mut ViewContext<Self>,
8153 ) -> Result<()> {
8154 self.push_to_selection_history();
8155 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8156 let buffer = &display_map.buffer_snapshot;
8157 let mut selections = self.selections.all::<usize>(cx);
8158 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8159 let query = &select_prev_state.query;
8160 if !select_prev_state.done {
8161 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8162 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8163 let mut next_selected_range = None;
8164 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8165 let bytes_before_last_selection =
8166 buffer.reversed_bytes_in_range(0..last_selection.start);
8167 let bytes_after_first_selection =
8168 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8169 let query_matches = query
8170 .stream_find_iter(bytes_before_last_selection)
8171 .map(|result| (last_selection.start, result))
8172 .chain(
8173 query
8174 .stream_find_iter(bytes_after_first_selection)
8175 .map(|result| (buffer.len(), result)),
8176 );
8177 for (end_offset, query_match) in query_matches {
8178 let query_match = query_match.unwrap(); // can only fail due to I/O
8179 let offset_range =
8180 end_offset - query_match.end()..end_offset - query_match.start();
8181 let display_range = offset_range.start.to_display_point(&display_map)
8182 ..offset_range.end.to_display_point(&display_map);
8183
8184 if !select_prev_state.wordwise
8185 || (!movement::is_inside_word(&display_map, display_range.start)
8186 && !movement::is_inside_word(&display_map, display_range.end))
8187 {
8188 next_selected_range = Some(offset_range);
8189 break;
8190 }
8191 }
8192
8193 if let Some(next_selected_range) = next_selected_range {
8194 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8195 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8196 if action.replace_newest {
8197 s.delete(s.newest_anchor().id);
8198 }
8199 s.insert_range(next_selected_range);
8200 });
8201 } else {
8202 select_prev_state.done = true;
8203 }
8204 }
8205
8206 self.select_prev_state = Some(select_prev_state);
8207 } else {
8208 let mut only_carets = true;
8209 let mut same_text_selected = true;
8210 let mut selected_text = None;
8211
8212 let mut selections_iter = selections.iter().peekable();
8213 while let Some(selection) = selections_iter.next() {
8214 if selection.start != selection.end {
8215 only_carets = false;
8216 }
8217
8218 if same_text_selected {
8219 if selected_text.is_none() {
8220 selected_text =
8221 Some(buffer.text_for_range(selection.range()).collect::<String>());
8222 }
8223
8224 if let Some(next_selection) = selections_iter.peek() {
8225 if next_selection.range().len() == selection.range().len() {
8226 let next_selected_text = buffer
8227 .text_for_range(next_selection.range())
8228 .collect::<String>();
8229 if Some(next_selected_text) != selected_text {
8230 same_text_selected = false;
8231 selected_text = None;
8232 }
8233 } else {
8234 same_text_selected = false;
8235 selected_text = None;
8236 }
8237 }
8238 }
8239 }
8240
8241 if only_carets {
8242 for selection in &mut selections {
8243 let word_range = movement::surrounding_word(
8244 &display_map,
8245 selection.start.to_display_point(&display_map),
8246 );
8247 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8248 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8249 selection.goal = SelectionGoal::None;
8250 selection.reversed = false;
8251 }
8252 if selections.len() == 1 {
8253 let selection = selections
8254 .last()
8255 .expect("ensured that there's only one selection");
8256 let query = buffer
8257 .text_for_range(selection.start..selection.end)
8258 .collect::<String>();
8259 let is_empty = query.is_empty();
8260 let select_state = SelectNextState {
8261 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8262 wordwise: true,
8263 done: is_empty,
8264 };
8265 self.select_prev_state = Some(select_state);
8266 } else {
8267 self.select_prev_state = None;
8268 }
8269
8270 self.unfold_ranges(
8271 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8272 false,
8273 true,
8274 cx,
8275 );
8276 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8277 s.select(selections);
8278 });
8279 } else if let Some(selected_text) = selected_text {
8280 self.select_prev_state = Some(SelectNextState {
8281 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8282 wordwise: false,
8283 done: false,
8284 });
8285 self.select_previous(action, cx)?;
8286 }
8287 }
8288 Ok(())
8289 }
8290
8291 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8292 if self.read_only(cx) {
8293 return;
8294 }
8295 let text_layout_details = &self.text_layout_details(cx);
8296 self.transact(cx, |this, cx| {
8297 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8298 let mut edits = Vec::new();
8299 let mut selection_edit_ranges = Vec::new();
8300 let mut last_toggled_row = None;
8301 let snapshot = this.buffer.read(cx).read(cx);
8302 let empty_str: Arc<str> = Arc::default();
8303 let mut suffixes_inserted = Vec::new();
8304 let ignore_indent = action.ignore_indent;
8305
8306 fn comment_prefix_range(
8307 snapshot: &MultiBufferSnapshot,
8308 row: MultiBufferRow,
8309 comment_prefix: &str,
8310 comment_prefix_whitespace: &str,
8311 ignore_indent: bool,
8312 ) -> Range<Point> {
8313 let indent_size = if ignore_indent {
8314 0
8315 } else {
8316 snapshot.indent_size_for_line(row).len
8317 };
8318
8319 let start = Point::new(row.0, indent_size);
8320
8321 let mut line_bytes = snapshot
8322 .bytes_in_range(start..snapshot.max_point())
8323 .flatten()
8324 .copied();
8325
8326 // If this line currently begins with the line comment prefix, then record
8327 // the range containing the prefix.
8328 if line_bytes
8329 .by_ref()
8330 .take(comment_prefix.len())
8331 .eq(comment_prefix.bytes())
8332 {
8333 // Include any whitespace that matches the comment prefix.
8334 let matching_whitespace_len = line_bytes
8335 .zip(comment_prefix_whitespace.bytes())
8336 .take_while(|(a, b)| a == b)
8337 .count() as u32;
8338 let end = Point::new(
8339 start.row,
8340 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8341 );
8342 start..end
8343 } else {
8344 start..start
8345 }
8346 }
8347
8348 fn comment_suffix_range(
8349 snapshot: &MultiBufferSnapshot,
8350 row: MultiBufferRow,
8351 comment_suffix: &str,
8352 comment_suffix_has_leading_space: bool,
8353 ) -> Range<Point> {
8354 let end = Point::new(row.0, snapshot.line_len(row));
8355 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8356
8357 let mut line_end_bytes = snapshot
8358 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8359 .flatten()
8360 .copied();
8361
8362 let leading_space_len = if suffix_start_column > 0
8363 && line_end_bytes.next() == Some(b' ')
8364 && comment_suffix_has_leading_space
8365 {
8366 1
8367 } else {
8368 0
8369 };
8370
8371 // If this line currently begins with the line comment prefix, then record
8372 // the range containing the prefix.
8373 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8374 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8375 start..end
8376 } else {
8377 end..end
8378 }
8379 }
8380
8381 // TODO: Handle selections that cross excerpts
8382 for selection in &mut selections {
8383 let start_column = snapshot
8384 .indent_size_for_line(MultiBufferRow(selection.start.row))
8385 .len;
8386 let language = if let Some(language) =
8387 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8388 {
8389 language
8390 } else {
8391 continue;
8392 };
8393
8394 selection_edit_ranges.clear();
8395
8396 // If multiple selections contain a given row, avoid processing that
8397 // row more than once.
8398 let mut start_row = MultiBufferRow(selection.start.row);
8399 if last_toggled_row == Some(start_row) {
8400 start_row = start_row.next_row();
8401 }
8402 let end_row =
8403 if selection.end.row > selection.start.row && selection.end.column == 0 {
8404 MultiBufferRow(selection.end.row - 1)
8405 } else {
8406 MultiBufferRow(selection.end.row)
8407 };
8408 last_toggled_row = Some(end_row);
8409
8410 if start_row > end_row {
8411 continue;
8412 }
8413
8414 // If the language has line comments, toggle those.
8415 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8416
8417 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8418 if ignore_indent {
8419 full_comment_prefixes = full_comment_prefixes
8420 .into_iter()
8421 .map(|s| Arc::from(s.trim_end()))
8422 .collect();
8423 }
8424
8425 if !full_comment_prefixes.is_empty() {
8426 let first_prefix = full_comment_prefixes
8427 .first()
8428 .expect("prefixes is non-empty");
8429 let prefix_trimmed_lengths = full_comment_prefixes
8430 .iter()
8431 .map(|p| p.trim_end_matches(' ').len())
8432 .collect::<SmallVec<[usize; 4]>>();
8433
8434 let mut all_selection_lines_are_comments = true;
8435
8436 for row in start_row.0..=end_row.0 {
8437 let row = MultiBufferRow(row);
8438 if start_row < end_row && snapshot.is_line_blank(row) {
8439 continue;
8440 }
8441
8442 let prefix_range = full_comment_prefixes
8443 .iter()
8444 .zip(prefix_trimmed_lengths.iter().copied())
8445 .map(|(prefix, trimmed_prefix_len)| {
8446 comment_prefix_range(
8447 snapshot.deref(),
8448 row,
8449 &prefix[..trimmed_prefix_len],
8450 &prefix[trimmed_prefix_len..],
8451 ignore_indent,
8452 )
8453 })
8454 .max_by_key(|range| range.end.column - range.start.column)
8455 .expect("prefixes is non-empty");
8456
8457 if prefix_range.is_empty() {
8458 all_selection_lines_are_comments = false;
8459 }
8460
8461 selection_edit_ranges.push(prefix_range);
8462 }
8463
8464 if all_selection_lines_are_comments {
8465 edits.extend(
8466 selection_edit_ranges
8467 .iter()
8468 .cloned()
8469 .map(|range| (range, empty_str.clone())),
8470 );
8471 } else {
8472 let min_column = selection_edit_ranges
8473 .iter()
8474 .map(|range| range.start.column)
8475 .min()
8476 .unwrap_or(0);
8477 edits.extend(selection_edit_ranges.iter().map(|range| {
8478 let position = Point::new(range.start.row, min_column);
8479 (position..position, first_prefix.clone())
8480 }));
8481 }
8482 } else if let Some((full_comment_prefix, comment_suffix)) =
8483 language.block_comment_delimiters()
8484 {
8485 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8486 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8487 let prefix_range = comment_prefix_range(
8488 snapshot.deref(),
8489 start_row,
8490 comment_prefix,
8491 comment_prefix_whitespace,
8492 ignore_indent,
8493 );
8494 let suffix_range = comment_suffix_range(
8495 snapshot.deref(),
8496 end_row,
8497 comment_suffix.trim_start_matches(' '),
8498 comment_suffix.starts_with(' '),
8499 );
8500
8501 if prefix_range.is_empty() || suffix_range.is_empty() {
8502 edits.push((
8503 prefix_range.start..prefix_range.start,
8504 full_comment_prefix.clone(),
8505 ));
8506 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8507 suffixes_inserted.push((end_row, comment_suffix.len()));
8508 } else {
8509 edits.push((prefix_range, empty_str.clone()));
8510 edits.push((suffix_range, empty_str.clone()));
8511 }
8512 } else {
8513 continue;
8514 }
8515 }
8516
8517 drop(snapshot);
8518 this.buffer.update(cx, |buffer, cx| {
8519 buffer.edit(edits, None, cx);
8520 });
8521
8522 // Adjust selections so that they end before any comment suffixes that
8523 // were inserted.
8524 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8525 let mut selections = this.selections.all::<Point>(cx);
8526 let snapshot = this.buffer.read(cx).read(cx);
8527 for selection in &mut selections {
8528 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8529 match row.cmp(&MultiBufferRow(selection.end.row)) {
8530 Ordering::Less => {
8531 suffixes_inserted.next();
8532 continue;
8533 }
8534 Ordering::Greater => break,
8535 Ordering::Equal => {
8536 if selection.end.column == snapshot.line_len(row) {
8537 if selection.is_empty() {
8538 selection.start.column -= suffix_len as u32;
8539 }
8540 selection.end.column -= suffix_len as u32;
8541 }
8542 break;
8543 }
8544 }
8545 }
8546 }
8547
8548 drop(snapshot);
8549 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8550
8551 let selections = this.selections.all::<Point>(cx);
8552 let selections_on_single_row = selections.windows(2).all(|selections| {
8553 selections[0].start.row == selections[1].start.row
8554 && selections[0].end.row == selections[1].end.row
8555 && selections[0].start.row == selections[0].end.row
8556 });
8557 let selections_selecting = selections
8558 .iter()
8559 .any(|selection| selection.start != selection.end);
8560 let advance_downwards = action.advance_downwards
8561 && selections_on_single_row
8562 && !selections_selecting
8563 && !matches!(this.mode, EditorMode::SingleLine { .. });
8564
8565 if advance_downwards {
8566 let snapshot = this.buffer.read(cx).snapshot(cx);
8567
8568 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8569 s.move_cursors_with(|display_snapshot, display_point, _| {
8570 let mut point = display_point.to_point(display_snapshot);
8571 point.row += 1;
8572 point = snapshot.clip_point(point, Bias::Left);
8573 let display_point = point.to_display_point(display_snapshot);
8574 let goal = SelectionGoal::HorizontalPosition(
8575 display_snapshot
8576 .x_for_display_point(display_point, text_layout_details)
8577 .into(),
8578 );
8579 (display_point, goal)
8580 })
8581 });
8582 }
8583 });
8584 }
8585
8586 pub fn select_enclosing_symbol(
8587 &mut self,
8588 _: &SelectEnclosingSymbol,
8589 cx: &mut ViewContext<Self>,
8590 ) {
8591 let buffer = self.buffer.read(cx).snapshot(cx);
8592 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8593
8594 fn update_selection(
8595 selection: &Selection<usize>,
8596 buffer_snap: &MultiBufferSnapshot,
8597 ) -> Option<Selection<usize>> {
8598 let cursor = selection.head();
8599 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8600 for symbol in symbols.iter().rev() {
8601 let start = symbol.range.start.to_offset(buffer_snap);
8602 let end = symbol.range.end.to_offset(buffer_snap);
8603 let new_range = start..end;
8604 if start < selection.start || end > selection.end {
8605 return Some(Selection {
8606 id: selection.id,
8607 start: new_range.start,
8608 end: new_range.end,
8609 goal: SelectionGoal::None,
8610 reversed: selection.reversed,
8611 });
8612 }
8613 }
8614 None
8615 }
8616
8617 let mut selected_larger_symbol = false;
8618 let new_selections = old_selections
8619 .iter()
8620 .map(|selection| match update_selection(selection, &buffer) {
8621 Some(new_selection) => {
8622 if new_selection.range() != selection.range() {
8623 selected_larger_symbol = true;
8624 }
8625 new_selection
8626 }
8627 None => selection.clone(),
8628 })
8629 .collect::<Vec<_>>();
8630
8631 if selected_larger_symbol {
8632 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8633 s.select(new_selections);
8634 });
8635 }
8636 }
8637
8638 pub fn select_larger_syntax_node(
8639 &mut self,
8640 _: &SelectLargerSyntaxNode,
8641 cx: &mut ViewContext<Self>,
8642 ) {
8643 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8644 let buffer = self.buffer.read(cx).snapshot(cx);
8645 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8646
8647 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8648 let mut selected_larger_node = false;
8649 let new_selections = old_selections
8650 .iter()
8651 .map(|selection| {
8652 let old_range = selection.start..selection.end;
8653 let mut new_range = old_range.clone();
8654 while let Some(containing_range) =
8655 buffer.range_for_syntax_ancestor(new_range.clone())
8656 {
8657 new_range = containing_range;
8658 if !display_map.intersects_fold(new_range.start)
8659 && !display_map.intersects_fold(new_range.end)
8660 {
8661 break;
8662 }
8663 }
8664
8665 selected_larger_node |= new_range != old_range;
8666 Selection {
8667 id: selection.id,
8668 start: new_range.start,
8669 end: new_range.end,
8670 goal: SelectionGoal::None,
8671 reversed: selection.reversed,
8672 }
8673 })
8674 .collect::<Vec<_>>();
8675
8676 if selected_larger_node {
8677 stack.push(old_selections);
8678 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8679 s.select(new_selections);
8680 });
8681 }
8682 self.select_larger_syntax_node_stack = stack;
8683 }
8684
8685 pub fn select_smaller_syntax_node(
8686 &mut self,
8687 _: &SelectSmallerSyntaxNode,
8688 cx: &mut ViewContext<Self>,
8689 ) {
8690 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8691 if let Some(selections) = stack.pop() {
8692 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8693 s.select(selections.to_vec());
8694 });
8695 }
8696 self.select_larger_syntax_node_stack = stack;
8697 }
8698
8699 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8700 if !EditorSettings::get_global(cx).gutter.runnables {
8701 self.clear_tasks();
8702 return Task::ready(());
8703 }
8704 let project = self.project.as_ref().map(Model::downgrade);
8705 cx.spawn(|this, mut cx| async move {
8706 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
8707 let Some(project) = project.and_then(|p| p.upgrade()) else {
8708 return;
8709 };
8710 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8711 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8712 }) else {
8713 return;
8714 };
8715
8716 let hide_runnables = project
8717 .update(&mut cx, |project, cx| {
8718 // Do not display any test indicators in non-dev server remote projects.
8719 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8720 })
8721 .unwrap_or(true);
8722 if hide_runnables {
8723 return;
8724 }
8725 let new_rows =
8726 cx.background_executor()
8727 .spawn({
8728 let snapshot = display_snapshot.clone();
8729 async move {
8730 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8731 }
8732 })
8733 .await;
8734 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8735
8736 this.update(&mut cx, |this, _| {
8737 this.clear_tasks();
8738 for (key, value) in rows {
8739 this.insert_tasks(key, value);
8740 }
8741 })
8742 .ok();
8743 })
8744 }
8745 fn fetch_runnable_ranges(
8746 snapshot: &DisplaySnapshot,
8747 range: Range<Anchor>,
8748 ) -> Vec<language::RunnableRange> {
8749 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8750 }
8751
8752 fn runnable_rows(
8753 project: Model<Project>,
8754 snapshot: DisplaySnapshot,
8755 runnable_ranges: Vec<RunnableRange>,
8756 mut cx: AsyncWindowContext,
8757 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8758 runnable_ranges
8759 .into_iter()
8760 .filter_map(|mut runnable| {
8761 let tasks = cx
8762 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8763 .ok()?;
8764 if tasks.is_empty() {
8765 return None;
8766 }
8767
8768 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8769
8770 let row = snapshot
8771 .buffer_snapshot
8772 .buffer_line_for_row(MultiBufferRow(point.row))?
8773 .1
8774 .start
8775 .row;
8776
8777 let context_range =
8778 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8779 Some((
8780 (runnable.buffer_id, row),
8781 RunnableTasks {
8782 templates: tasks,
8783 offset: MultiBufferOffset(runnable.run_range.start),
8784 context_range,
8785 column: point.column,
8786 extra_variables: runnable.extra_captures,
8787 },
8788 ))
8789 })
8790 .collect()
8791 }
8792
8793 fn templates_with_tags(
8794 project: &Model<Project>,
8795 runnable: &mut Runnable,
8796 cx: &WindowContext<'_>,
8797 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8798 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8799 let (worktree_id, file) = project
8800 .buffer_for_id(runnable.buffer, cx)
8801 .and_then(|buffer| buffer.read(cx).file())
8802 .map(|file| (file.worktree_id(cx), file.clone()))
8803 .unzip();
8804
8805 (
8806 project.task_store().read(cx).task_inventory().cloned(),
8807 worktree_id,
8808 file,
8809 )
8810 });
8811
8812 let tags = mem::take(&mut runnable.tags);
8813 let mut tags: Vec<_> = tags
8814 .into_iter()
8815 .flat_map(|tag| {
8816 let tag = tag.0.clone();
8817 inventory
8818 .as_ref()
8819 .into_iter()
8820 .flat_map(|inventory| {
8821 inventory.read(cx).list_tasks(
8822 file.clone(),
8823 Some(runnable.language.clone()),
8824 worktree_id,
8825 cx,
8826 )
8827 })
8828 .filter(move |(_, template)| {
8829 template.tags.iter().any(|source_tag| source_tag == &tag)
8830 })
8831 })
8832 .sorted_by_key(|(kind, _)| kind.to_owned())
8833 .collect();
8834 if let Some((leading_tag_source, _)) = tags.first() {
8835 // Strongest source wins; if we have worktree tag binding, prefer that to
8836 // global and language bindings;
8837 // if we have a global binding, prefer that to language binding.
8838 let first_mismatch = tags
8839 .iter()
8840 .position(|(tag_source, _)| tag_source != leading_tag_source);
8841 if let Some(index) = first_mismatch {
8842 tags.truncate(index);
8843 }
8844 }
8845
8846 tags
8847 }
8848
8849 pub fn move_to_enclosing_bracket(
8850 &mut self,
8851 _: &MoveToEnclosingBracket,
8852 cx: &mut ViewContext<Self>,
8853 ) {
8854 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8855 s.move_offsets_with(|snapshot, selection| {
8856 let Some(enclosing_bracket_ranges) =
8857 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8858 else {
8859 return;
8860 };
8861
8862 let mut best_length = usize::MAX;
8863 let mut best_inside = false;
8864 let mut best_in_bracket_range = false;
8865 let mut best_destination = None;
8866 for (open, close) in enclosing_bracket_ranges {
8867 let close = close.to_inclusive();
8868 let length = close.end() - open.start;
8869 let inside = selection.start >= open.end && selection.end <= *close.start();
8870 let in_bracket_range = open.to_inclusive().contains(&selection.head())
8871 || close.contains(&selection.head());
8872
8873 // If best is next to a bracket and current isn't, skip
8874 if !in_bracket_range && best_in_bracket_range {
8875 continue;
8876 }
8877
8878 // Prefer smaller lengths unless best is inside and current isn't
8879 if length > best_length && (best_inside || !inside) {
8880 continue;
8881 }
8882
8883 best_length = length;
8884 best_inside = inside;
8885 best_in_bracket_range = in_bracket_range;
8886 best_destination = Some(
8887 if close.contains(&selection.start) && close.contains(&selection.end) {
8888 if inside {
8889 open.end
8890 } else {
8891 open.start
8892 }
8893 } else if inside {
8894 *close.start()
8895 } else {
8896 *close.end()
8897 },
8898 );
8899 }
8900
8901 if let Some(destination) = best_destination {
8902 selection.collapse_to(destination, SelectionGoal::None);
8903 }
8904 })
8905 });
8906 }
8907
8908 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
8909 self.end_selection(cx);
8910 self.selection_history.mode = SelectionHistoryMode::Undoing;
8911 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
8912 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8913 self.select_next_state = entry.select_next_state;
8914 self.select_prev_state = entry.select_prev_state;
8915 self.add_selections_state = entry.add_selections_state;
8916 self.request_autoscroll(Autoscroll::newest(), cx);
8917 }
8918 self.selection_history.mode = SelectionHistoryMode::Normal;
8919 }
8920
8921 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
8922 self.end_selection(cx);
8923 self.selection_history.mode = SelectionHistoryMode::Redoing;
8924 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
8925 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8926 self.select_next_state = entry.select_next_state;
8927 self.select_prev_state = entry.select_prev_state;
8928 self.add_selections_state = entry.add_selections_state;
8929 self.request_autoscroll(Autoscroll::newest(), cx);
8930 }
8931 self.selection_history.mode = SelectionHistoryMode::Normal;
8932 }
8933
8934 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
8935 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
8936 }
8937
8938 pub fn expand_excerpts_down(
8939 &mut self,
8940 action: &ExpandExcerptsDown,
8941 cx: &mut ViewContext<Self>,
8942 ) {
8943 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
8944 }
8945
8946 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
8947 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
8948 }
8949
8950 pub fn expand_excerpts_for_direction(
8951 &mut self,
8952 lines: u32,
8953 direction: ExpandExcerptDirection,
8954 cx: &mut ViewContext<Self>,
8955 ) {
8956 let selections = self.selections.disjoint_anchors();
8957
8958 let lines = if lines == 0 {
8959 EditorSettings::get_global(cx).expand_excerpt_lines
8960 } else {
8961 lines
8962 };
8963
8964 self.buffer.update(cx, |buffer, cx| {
8965 buffer.expand_excerpts(
8966 selections
8967 .iter()
8968 .map(|selection| selection.head().excerpt_id)
8969 .dedup(),
8970 lines,
8971 direction,
8972 cx,
8973 )
8974 })
8975 }
8976
8977 pub fn expand_excerpt(
8978 &mut self,
8979 excerpt: ExcerptId,
8980 direction: ExpandExcerptDirection,
8981 cx: &mut ViewContext<Self>,
8982 ) {
8983 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
8984 self.buffer.update(cx, |buffer, cx| {
8985 buffer.expand_excerpts([excerpt], lines, direction, cx)
8986 })
8987 }
8988
8989 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8990 self.go_to_diagnostic_impl(Direction::Next, cx)
8991 }
8992
8993 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8994 self.go_to_diagnostic_impl(Direction::Prev, cx)
8995 }
8996
8997 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8998 let buffer = self.buffer.read(cx).snapshot(cx);
8999 let selection = self.selections.newest::<usize>(cx);
9000
9001 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9002 if direction == Direction::Next {
9003 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9004 let (group_id, jump_to) = popover.activation_info();
9005 if self.activate_diagnostics(group_id, cx) {
9006 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9007 let mut new_selection = s.newest_anchor().clone();
9008 new_selection.collapse_to(jump_to, SelectionGoal::None);
9009 s.select_anchors(vec![new_selection.clone()]);
9010 });
9011 }
9012 return;
9013 }
9014 }
9015
9016 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9017 active_diagnostics
9018 .primary_range
9019 .to_offset(&buffer)
9020 .to_inclusive()
9021 });
9022 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9023 if active_primary_range.contains(&selection.head()) {
9024 *active_primary_range.start()
9025 } else {
9026 selection.head()
9027 }
9028 } else {
9029 selection.head()
9030 };
9031 let snapshot = self.snapshot(cx);
9032 loop {
9033 let diagnostics = if direction == Direction::Prev {
9034 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9035 } else {
9036 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9037 }
9038 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9039 let group = diagnostics
9040 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9041 // be sorted in a stable way
9042 // skip until we are at current active diagnostic, if it exists
9043 .skip_while(|entry| {
9044 (match direction {
9045 Direction::Prev => entry.range.start >= search_start,
9046 Direction::Next => entry.range.start <= search_start,
9047 }) && self
9048 .active_diagnostics
9049 .as_ref()
9050 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9051 })
9052 .find_map(|entry| {
9053 if entry.diagnostic.is_primary
9054 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9055 && !entry.range.is_empty()
9056 // if we match with the active diagnostic, skip it
9057 && Some(entry.diagnostic.group_id)
9058 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9059 {
9060 Some((entry.range, entry.diagnostic.group_id))
9061 } else {
9062 None
9063 }
9064 });
9065
9066 if let Some((primary_range, group_id)) = group {
9067 if self.activate_diagnostics(group_id, cx) {
9068 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9069 s.select(vec![Selection {
9070 id: selection.id,
9071 start: primary_range.start,
9072 end: primary_range.start,
9073 reversed: false,
9074 goal: SelectionGoal::None,
9075 }]);
9076 });
9077 }
9078 break;
9079 } else {
9080 // Cycle around to the start of the buffer, potentially moving back to the start of
9081 // the currently active diagnostic.
9082 active_primary_range.take();
9083 if direction == Direction::Prev {
9084 if search_start == buffer.len() {
9085 break;
9086 } else {
9087 search_start = buffer.len();
9088 }
9089 } else if search_start == 0 {
9090 break;
9091 } else {
9092 search_start = 0;
9093 }
9094 }
9095 }
9096 }
9097
9098 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9099 let snapshot = self.snapshot(cx);
9100 let selection = self.selections.newest::<Point>(cx);
9101 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9102 }
9103
9104 fn go_to_hunk_after_position(
9105 &mut self,
9106 snapshot: &EditorSnapshot,
9107 position: Point,
9108 cx: &mut ViewContext<'_, Editor>,
9109 ) -> Option<MultiBufferDiffHunk> {
9110 for (ix, position) in [position, Point::zero()].into_iter().enumerate() {
9111 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9112 snapshot,
9113 position,
9114 ix > 0,
9115 snapshot.diff_map.diff_hunks_in_range(
9116 position + Point::new(1, 0)..snapshot.buffer_snapshot.max_point(),
9117 &snapshot.buffer_snapshot,
9118 ),
9119 cx,
9120 ) {
9121 return Some(hunk);
9122 }
9123 }
9124 None
9125 }
9126
9127 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9128 let snapshot = self.snapshot(cx);
9129 let selection = self.selections.newest::<Point>(cx);
9130 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9131 }
9132
9133 fn go_to_hunk_before_position(
9134 &mut self,
9135 snapshot: &EditorSnapshot,
9136 position: Point,
9137 cx: &mut ViewContext<'_, Editor>,
9138 ) -> Option<MultiBufferDiffHunk> {
9139 for (ix, position) in [position, snapshot.buffer_snapshot.max_point()]
9140 .into_iter()
9141 .enumerate()
9142 {
9143 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9144 snapshot,
9145 position,
9146 ix > 0,
9147 snapshot
9148 .diff_map
9149 .diff_hunks_in_range_rev(Point::zero()..position, &snapshot.buffer_snapshot),
9150 cx,
9151 ) {
9152 return Some(hunk);
9153 }
9154 }
9155 None
9156 }
9157
9158 fn go_to_next_hunk_in_direction(
9159 &mut self,
9160 snapshot: &DisplaySnapshot,
9161 initial_point: Point,
9162 is_wrapped: bool,
9163 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9164 cx: &mut ViewContext<Editor>,
9165 ) -> Option<MultiBufferDiffHunk> {
9166 let display_point = initial_point.to_display_point(snapshot);
9167 let mut hunks = hunks
9168 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9169 .filter(|(display_hunk, _)| {
9170 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9171 })
9172 .dedup();
9173
9174 if let Some((display_hunk, hunk)) = hunks.next() {
9175 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9176 let row = display_hunk.start_display_row();
9177 let point = DisplayPoint::new(row, 0);
9178 s.select_display_ranges([point..point]);
9179 });
9180
9181 Some(hunk)
9182 } else {
9183 None
9184 }
9185 }
9186
9187 pub fn go_to_definition(
9188 &mut self,
9189 _: &GoToDefinition,
9190 cx: &mut ViewContext<Self>,
9191 ) -> Task<Result<Navigated>> {
9192 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9193 cx.spawn(|editor, mut cx| async move {
9194 if definition.await? == Navigated::Yes {
9195 return Ok(Navigated::Yes);
9196 }
9197 match editor.update(&mut cx, |editor, cx| {
9198 editor.find_all_references(&FindAllReferences, cx)
9199 })? {
9200 Some(references) => references.await,
9201 None => Ok(Navigated::No),
9202 }
9203 })
9204 }
9205
9206 pub fn go_to_declaration(
9207 &mut self,
9208 _: &GoToDeclaration,
9209 cx: &mut ViewContext<Self>,
9210 ) -> Task<Result<Navigated>> {
9211 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9212 }
9213
9214 pub fn go_to_declaration_split(
9215 &mut self,
9216 _: &GoToDeclaration,
9217 cx: &mut ViewContext<Self>,
9218 ) -> Task<Result<Navigated>> {
9219 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9220 }
9221
9222 pub fn go_to_implementation(
9223 &mut self,
9224 _: &GoToImplementation,
9225 cx: &mut ViewContext<Self>,
9226 ) -> Task<Result<Navigated>> {
9227 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9228 }
9229
9230 pub fn go_to_implementation_split(
9231 &mut self,
9232 _: &GoToImplementationSplit,
9233 cx: &mut ViewContext<Self>,
9234 ) -> Task<Result<Navigated>> {
9235 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9236 }
9237
9238 pub fn go_to_type_definition(
9239 &mut self,
9240 _: &GoToTypeDefinition,
9241 cx: &mut ViewContext<Self>,
9242 ) -> Task<Result<Navigated>> {
9243 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9244 }
9245
9246 pub fn go_to_definition_split(
9247 &mut self,
9248 _: &GoToDefinitionSplit,
9249 cx: &mut ViewContext<Self>,
9250 ) -> Task<Result<Navigated>> {
9251 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9252 }
9253
9254 pub fn go_to_type_definition_split(
9255 &mut self,
9256 _: &GoToTypeDefinitionSplit,
9257 cx: &mut ViewContext<Self>,
9258 ) -> Task<Result<Navigated>> {
9259 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9260 }
9261
9262 fn go_to_definition_of_kind(
9263 &mut self,
9264 kind: GotoDefinitionKind,
9265 split: bool,
9266 cx: &mut ViewContext<Self>,
9267 ) -> Task<Result<Navigated>> {
9268 let Some(provider) = self.semantics_provider.clone() else {
9269 return Task::ready(Ok(Navigated::No));
9270 };
9271 let head = self.selections.newest::<usize>(cx).head();
9272 let buffer = self.buffer.read(cx);
9273 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9274 text_anchor
9275 } else {
9276 return Task::ready(Ok(Navigated::No));
9277 };
9278
9279 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9280 return Task::ready(Ok(Navigated::No));
9281 };
9282
9283 cx.spawn(|editor, mut cx| async move {
9284 let definitions = definitions.await?;
9285 let navigated = editor
9286 .update(&mut cx, |editor, cx| {
9287 editor.navigate_to_hover_links(
9288 Some(kind),
9289 definitions
9290 .into_iter()
9291 .filter(|location| {
9292 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9293 })
9294 .map(HoverLink::Text)
9295 .collect::<Vec<_>>(),
9296 split,
9297 cx,
9298 )
9299 })?
9300 .await?;
9301 anyhow::Ok(navigated)
9302 })
9303 }
9304
9305 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9306 let selection = self.selections.newest_anchor();
9307 let head = selection.head();
9308 let tail = selection.tail();
9309
9310 let Some((buffer, start_position)) =
9311 self.buffer.read(cx).text_anchor_for_position(head, cx)
9312 else {
9313 return;
9314 };
9315
9316 let end_position = if head != tail {
9317 let Some((_, pos)) = self.buffer.read(cx).text_anchor_for_position(tail, cx) else {
9318 return;
9319 };
9320 Some(pos)
9321 } else {
9322 None
9323 };
9324
9325 let url_finder = cx.spawn(|editor, mut cx| async move {
9326 let url = if let Some(end_pos) = end_position {
9327 find_url_from_range(&buffer, start_position..end_pos, cx.clone())
9328 } else {
9329 find_url(&buffer, start_position, cx.clone()).map(|(_, url)| url)
9330 };
9331
9332 if let Some(url) = url {
9333 editor.update(&mut cx, |_, cx| {
9334 cx.open_url(&url);
9335 })
9336 } else {
9337 Ok(())
9338 }
9339 });
9340
9341 url_finder.detach();
9342 }
9343
9344 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9345 let Some(workspace) = self.workspace() else {
9346 return;
9347 };
9348
9349 let position = self.selections.newest_anchor().head();
9350
9351 let Some((buffer, buffer_position)) =
9352 self.buffer.read(cx).text_anchor_for_position(position, cx)
9353 else {
9354 return;
9355 };
9356
9357 let project = self.project.clone();
9358
9359 cx.spawn(|_, mut cx| async move {
9360 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9361
9362 if let Some((_, path)) = result {
9363 workspace
9364 .update(&mut cx, |workspace, cx| {
9365 workspace.open_resolved_path(path, cx)
9366 })?
9367 .await?;
9368 }
9369 anyhow::Ok(())
9370 })
9371 .detach();
9372 }
9373
9374 pub(crate) fn navigate_to_hover_links(
9375 &mut self,
9376 kind: Option<GotoDefinitionKind>,
9377 mut definitions: Vec<HoverLink>,
9378 split: bool,
9379 cx: &mut ViewContext<Editor>,
9380 ) -> Task<Result<Navigated>> {
9381 // If there is one definition, just open it directly
9382 if definitions.len() == 1 {
9383 let definition = definitions.pop().unwrap();
9384
9385 enum TargetTaskResult {
9386 Location(Option<Location>),
9387 AlreadyNavigated,
9388 }
9389
9390 let target_task = match definition {
9391 HoverLink::Text(link) => {
9392 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9393 }
9394 HoverLink::InlayHint(lsp_location, server_id) => {
9395 let computation = self.compute_target_location(lsp_location, server_id, cx);
9396 cx.background_executor().spawn(async move {
9397 let location = computation.await?;
9398 Ok(TargetTaskResult::Location(location))
9399 })
9400 }
9401 HoverLink::Url(url) => {
9402 cx.open_url(&url);
9403 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9404 }
9405 HoverLink::File(path) => {
9406 if let Some(workspace) = self.workspace() {
9407 cx.spawn(|_, mut cx| async move {
9408 workspace
9409 .update(&mut cx, |workspace, cx| {
9410 workspace.open_resolved_path(path, cx)
9411 })?
9412 .await
9413 .map(|_| TargetTaskResult::AlreadyNavigated)
9414 })
9415 } else {
9416 Task::ready(Ok(TargetTaskResult::Location(None)))
9417 }
9418 }
9419 };
9420 cx.spawn(|editor, mut cx| async move {
9421 let target = match target_task.await.context("target resolution task")? {
9422 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9423 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9424 TargetTaskResult::Location(Some(target)) => target,
9425 };
9426
9427 editor.update(&mut cx, |editor, cx| {
9428 let Some(workspace) = editor.workspace() else {
9429 return Navigated::No;
9430 };
9431 let pane = workspace.read(cx).active_pane().clone();
9432
9433 let range = target.range.to_offset(target.buffer.read(cx));
9434 let range = editor.range_for_match(&range);
9435
9436 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9437 let buffer = target.buffer.read(cx);
9438 let range = check_multiline_range(buffer, range);
9439 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9440 s.select_ranges([range]);
9441 });
9442 } else {
9443 cx.window_context().defer(move |cx| {
9444 let target_editor: View<Self> =
9445 workspace.update(cx, |workspace, cx| {
9446 let pane = if split {
9447 workspace.adjacent_pane(cx)
9448 } else {
9449 workspace.active_pane().clone()
9450 };
9451
9452 workspace.open_project_item(
9453 pane,
9454 target.buffer.clone(),
9455 true,
9456 true,
9457 cx,
9458 )
9459 });
9460 target_editor.update(cx, |target_editor, cx| {
9461 // When selecting a definition in a different buffer, disable the nav history
9462 // to avoid creating a history entry at the previous cursor location.
9463 pane.update(cx, |pane, _| pane.disable_history());
9464 let buffer = target.buffer.read(cx);
9465 let range = check_multiline_range(buffer, range);
9466 target_editor.change_selections(
9467 Some(Autoscroll::focused()),
9468 cx,
9469 |s| {
9470 s.select_ranges([range]);
9471 },
9472 );
9473 pane.update(cx, |pane, _| pane.enable_history());
9474 });
9475 });
9476 }
9477 Navigated::Yes
9478 })
9479 })
9480 } else if !definitions.is_empty() {
9481 cx.spawn(|editor, mut cx| async move {
9482 let (title, location_tasks, workspace) = editor
9483 .update(&mut cx, |editor, cx| {
9484 let tab_kind = match kind {
9485 Some(GotoDefinitionKind::Implementation) => "Implementations",
9486 _ => "Definitions",
9487 };
9488 let title = definitions
9489 .iter()
9490 .find_map(|definition| match definition {
9491 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9492 let buffer = origin.buffer.read(cx);
9493 format!(
9494 "{} for {}",
9495 tab_kind,
9496 buffer
9497 .text_for_range(origin.range.clone())
9498 .collect::<String>()
9499 )
9500 }),
9501 HoverLink::InlayHint(_, _) => None,
9502 HoverLink::Url(_) => None,
9503 HoverLink::File(_) => None,
9504 })
9505 .unwrap_or(tab_kind.to_string());
9506 let location_tasks = definitions
9507 .into_iter()
9508 .map(|definition| match definition {
9509 HoverLink::Text(link) => Task::ready(Ok(Some(link.target))),
9510 HoverLink::InlayHint(lsp_location, server_id) => {
9511 editor.compute_target_location(lsp_location, server_id, cx)
9512 }
9513 HoverLink::Url(_) => Task::ready(Ok(None)),
9514 HoverLink::File(_) => Task::ready(Ok(None)),
9515 })
9516 .collect::<Vec<_>>();
9517 (title, location_tasks, editor.workspace().clone())
9518 })
9519 .context("location tasks preparation")?;
9520
9521 let locations = future::join_all(location_tasks)
9522 .await
9523 .into_iter()
9524 .filter_map(|location| location.transpose())
9525 .collect::<Result<_>>()
9526 .context("location tasks")?;
9527
9528 let Some(workspace) = workspace else {
9529 return Ok(Navigated::No);
9530 };
9531 let opened = workspace
9532 .update(&mut cx, |workspace, cx| {
9533 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9534 })
9535 .ok();
9536
9537 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9538 })
9539 } else {
9540 Task::ready(Ok(Navigated::No))
9541 }
9542 }
9543
9544 fn compute_target_location(
9545 &self,
9546 lsp_location: lsp::Location,
9547 server_id: LanguageServerId,
9548 cx: &mut ViewContext<Self>,
9549 ) -> Task<anyhow::Result<Option<Location>>> {
9550 let Some(project) = self.project.clone() else {
9551 return Task::ready(Ok(None));
9552 };
9553
9554 cx.spawn(move |editor, mut cx| async move {
9555 let location_task = editor.update(&mut cx, |_, cx| {
9556 project.update(cx, |project, cx| {
9557 let language_server_name = project
9558 .language_server_statuses(cx)
9559 .find(|(id, _)| server_id == *id)
9560 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9561 language_server_name.map(|language_server_name| {
9562 project.open_local_buffer_via_lsp(
9563 lsp_location.uri.clone(),
9564 server_id,
9565 language_server_name,
9566 cx,
9567 )
9568 })
9569 })
9570 })?;
9571 let location = match location_task {
9572 Some(task) => Some({
9573 let target_buffer_handle = task.await.context("open local buffer")?;
9574 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9575 let target_start = target_buffer
9576 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9577 let target_end = target_buffer
9578 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9579 target_buffer.anchor_after(target_start)
9580 ..target_buffer.anchor_before(target_end)
9581 })?;
9582 Location {
9583 buffer: target_buffer_handle,
9584 range,
9585 }
9586 }),
9587 None => None,
9588 };
9589 Ok(location)
9590 })
9591 }
9592
9593 pub fn find_all_references(
9594 &mut self,
9595 _: &FindAllReferences,
9596 cx: &mut ViewContext<Self>,
9597 ) -> Option<Task<Result<Navigated>>> {
9598 let selection = self.selections.newest::<usize>(cx);
9599 let multi_buffer = self.buffer.read(cx);
9600 let head = selection.head();
9601
9602 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9603 let head_anchor = multi_buffer_snapshot.anchor_at(
9604 head,
9605 if head < selection.tail() {
9606 Bias::Right
9607 } else {
9608 Bias::Left
9609 },
9610 );
9611
9612 match self
9613 .find_all_references_task_sources
9614 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9615 {
9616 Ok(_) => {
9617 log::info!(
9618 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9619 );
9620 return None;
9621 }
9622 Err(i) => {
9623 self.find_all_references_task_sources.insert(i, head_anchor);
9624 }
9625 }
9626
9627 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9628 let workspace = self.workspace()?;
9629 let project = workspace.read(cx).project().clone();
9630 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9631 Some(cx.spawn(|editor, mut cx| async move {
9632 let _cleanup = defer({
9633 let mut cx = cx.clone();
9634 move || {
9635 let _ = editor.update(&mut cx, |editor, _| {
9636 if let Ok(i) =
9637 editor
9638 .find_all_references_task_sources
9639 .binary_search_by(|anchor| {
9640 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9641 })
9642 {
9643 editor.find_all_references_task_sources.remove(i);
9644 }
9645 });
9646 }
9647 });
9648
9649 let locations = references.await?;
9650 if locations.is_empty() {
9651 return anyhow::Ok(Navigated::No);
9652 }
9653
9654 workspace.update(&mut cx, |workspace, cx| {
9655 let title = locations
9656 .first()
9657 .as_ref()
9658 .map(|location| {
9659 let buffer = location.buffer.read(cx);
9660 format!(
9661 "References to `{}`",
9662 buffer
9663 .text_for_range(location.range.clone())
9664 .collect::<String>()
9665 )
9666 })
9667 .unwrap();
9668 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9669 Navigated::Yes
9670 })
9671 }))
9672 }
9673
9674 /// Opens a multibuffer with the given project locations in it
9675 pub fn open_locations_in_multibuffer(
9676 workspace: &mut Workspace,
9677 mut locations: Vec<Location>,
9678 title: String,
9679 split: bool,
9680 cx: &mut ViewContext<Workspace>,
9681 ) {
9682 // If there are multiple definitions, open them in a multibuffer
9683 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9684 let mut locations = locations.into_iter().peekable();
9685 let mut ranges_to_highlight = Vec::new();
9686 let capability = workspace.project().read(cx).capability();
9687
9688 let excerpt_buffer = cx.new_model(|cx| {
9689 let mut multibuffer = MultiBuffer::new(capability);
9690 while let Some(location) = locations.next() {
9691 let buffer = location.buffer.read(cx);
9692 let mut ranges_for_buffer = Vec::new();
9693 let range = location.range.to_offset(buffer);
9694 ranges_for_buffer.push(range.clone());
9695
9696 while let Some(next_location) = locations.peek() {
9697 if next_location.buffer == location.buffer {
9698 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9699 locations.next();
9700 } else {
9701 break;
9702 }
9703 }
9704
9705 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9706 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9707 location.buffer.clone(),
9708 ranges_for_buffer,
9709 DEFAULT_MULTIBUFFER_CONTEXT,
9710 cx,
9711 ))
9712 }
9713
9714 multibuffer.with_title(title)
9715 });
9716
9717 let editor = cx.new_view(|cx| {
9718 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9719 });
9720 editor.update(cx, |editor, cx| {
9721 if let Some(first_range) = ranges_to_highlight.first() {
9722 editor.change_selections(None, cx, |selections| {
9723 selections.clear_disjoint();
9724 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9725 });
9726 }
9727 editor.highlight_background::<Self>(
9728 &ranges_to_highlight,
9729 |theme| theme.editor_highlighted_line_background,
9730 cx,
9731 );
9732 editor.register_buffers_with_language_servers(cx);
9733 });
9734
9735 let item = Box::new(editor);
9736 let item_id = item.item_id();
9737
9738 if split {
9739 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9740 } else {
9741 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9742 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9743 pane.close_current_preview_item(cx)
9744 } else {
9745 None
9746 }
9747 });
9748 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9749 }
9750 workspace.active_pane().update(cx, |pane, cx| {
9751 pane.set_preview_item_id(Some(item_id), cx);
9752 });
9753 }
9754
9755 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9756 use language::ToOffset as _;
9757
9758 let provider = self.semantics_provider.clone()?;
9759 let selection = self.selections.newest_anchor().clone();
9760 let (cursor_buffer, cursor_buffer_position) = self
9761 .buffer
9762 .read(cx)
9763 .text_anchor_for_position(selection.head(), cx)?;
9764 let (tail_buffer, cursor_buffer_position_end) = self
9765 .buffer
9766 .read(cx)
9767 .text_anchor_for_position(selection.tail(), cx)?;
9768 if tail_buffer != cursor_buffer {
9769 return None;
9770 }
9771
9772 let snapshot = cursor_buffer.read(cx).snapshot();
9773 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9774 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9775 let prepare_rename = provider
9776 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
9777 .unwrap_or_else(|| Task::ready(Ok(None)));
9778 drop(snapshot);
9779
9780 Some(cx.spawn(|this, mut cx| async move {
9781 let rename_range = if let Some(range) = prepare_rename.await? {
9782 Some(range)
9783 } else {
9784 this.update(&mut cx, |this, cx| {
9785 let buffer = this.buffer.read(cx).snapshot(cx);
9786 let mut buffer_highlights = this
9787 .document_highlights_for_position(selection.head(), &buffer)
9788 .filter(|highlight| {
9789 highlight.start.excerpt_id == selection.head().excerpt_id
9790 && highlight.end.excerpt_id == selection.head().excerpt_id
9791 });
9792 buffer_highlights
9793 .next()
9794 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9795 })?
9796 };
9797 if let Some(rename_range) = rename_range {
9798 this.update(&mut cx, |this, cx| {
9799 let snapshot = cursor_buffer.read(cx).snapshot();
9800 let rename_buffer_range = rename_range.to_offset(&snapshot);
9801 let cursor_offset_in_rename_range =
9802 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9803 let cursor_offset_in_rename_range_end =
9804 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9805
9806 this.take_rename(false, cx);
9807 let buffer = this.buffer.read(cx).read(cx);
9808 let cursor_offset = selection.head().to_offset(&buffer);
9809 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9810 let rename_end = rename_start + rename_buffer_range.len();
9811 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9812 let mut old_highlight_id = None;
9813 let old_name: Arc<str> = buffer
9814 .chunks(rename_start..rename_end, true)
9815 .map(|chunk| {
9816 if old_highlight_id.is_none() {
9817 old_highlight_id = chunk.syntax_highlight_id;
9818 }
9819 chunk.text
9820 })
9821 .collect::<String>()
9822 .into();
9823
9824 drop(buffer);
9825
9826 // Position the selection in the rename editor so that it matches the current selection.
9827 this.show_local_selections = false;
9828 let rename_editor = cx.new_view(|cx| {
9829 let mut editor = Editor::single_line(cx);
9830 editor.buffer.update(cx, |buffer, cx| {
9831 buffer.edit([(0..0, old_name.clone())], None, cx)
9832 });
9833 let rename_selection_range = match cursor_offset_in_rename_range
9834 .cmp(&cursor_offset_in_rename_range_end)
9835 {
9836 Ordering::Equal => {
9837 editor.select_all(&SelectAll, cx);
9838 return editor;
9839 }
9840 Ordering::Less => {
9841 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
9842 }
9843 Ordering::Greater => {
9844 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
9845 }
9846 };
9847 if rename_selection_range.end > old_name.len() {
9848 editor.select_all(&SelectAll, cx);
9849 } else {
9850 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9851 s.select_ranges([rename_selection_range]);
9852 });
9853 }
9854 editor
9855 });
9856 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
9857 if e == &EditorEvent::Focused {
9858 cx.emit(EditorEvent::FocusedIn)
9859 }
9860 })
9861 .detach();
9862
9863 let write_highlights =
9864 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
9865 let read_highlights =
9866 this.clear_background_highlights::<DocumentHighlightRead>(cx);
9867 let ranges = write_highlights
9868 .iter()
9869 .flat_map(|(_, ranges)| ranges.iter())
9870 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
9871 .cloned()
9872 .collect();
9873
9874 this.highlight_text::<Rename>(
9875 ranges,
9876 HighlightStyle {
9877 fade_out: Some(0.6),
9878 ..Default::default()
9879 },
9880 cx,
9881 );
9882 let rename_focus_handle = rename_editor.focus_handle(cx);
9883 cx.focus(&rename_focus_handle);
9884 let block_id = this.insert_blocks(
9885 [BlockProperties {
9886 style: BlockStyle::Flex,
9887 placement: BlockPlacement::Below(range.start),
9888 height: 1,
9889 render: Arc::new({
9890 let rename_editor = rename_editor.clone();
9891 move |cx: &mut BlockContext| {
9892 let mut text_style = cx.editor_style.text.clone();
9893 if let Some(highlight_style) = old_highlight_id
9894 .and_then(|h| h.style(&cx.editor_style.syntax))
9895 {
9896 text_style = text_style.highlight(highlight_style);
9897 }
9898 div()
9899 .block_mouse_down()
9900 .pl(cx.anchor_x)
9901 .child(EditorElement::new(
9902 &rename_editor,
9903 EditorStyle {
9904 background: cx.theme().system().transparent,
9905 local_player: cx.editor_style.local_player,
9906 text: text_style,
9907 scrollbar_width: cx.editor_style.scrollbar_width,
9908 syntax: cx.editor_style.syntax.clone(),
9909 status: cx.editor_style.status.clone(),
9910 inlay_hints_style: HighlightStyle {
9911 font_weight: Some(FontWeight::BOLD),
9912 ..make_inlay_hints_style(cx)
9913 },
9914 inline_completion_styles: make_suggestion_styles(
9915 cx,
9916 ),
9917 ..EditorStyle::default()
9918 },
9919 ))
9920 .into_any_element()
9921 }
9922 }),
9923 priority: 0,
9924 }],
9925 Some(Autoscroll::fit()),
9926 cx,
9927 )[0];
9928 this.pending_rename = Some(RenameState {
9929 range,
9930 old_name,
9931 editor: rename_editor,
9932 block_id,
9933 });
9934 })?;
9935 }
9936
9937 Ok(())
9938 }))
9939 }
9940
9941 pub fn confirm_rename(
9942 &mut self,
9943 _: &ConfirmRename,
9944 cx: &mut ViewContext<Self>,
9945 ) -> Option<Task<Result<()>>> {
9946 let rename = self.take_rename(false, cx)?;
9947 let workspace = self.workspace()?.downgrade();
9948 let (buffer, start) = self
9949 .buffer
9950 .read(cx)
9951 .text_anchor_for_position(rename.range.start, cx)?;
9952 let (end_buffer, _) = self
9953 .buffer
9954 .read(cx)
9955 .text_anchor_for_position(rename.range.end, cx)?;
9956 if buffer != end_buffer {
9957 return None;
9958 }
9959
9960 let old_name = rename.old_name;
9961 let new_name = rename.editor.read(cx).text(cx);
9962
9963 let rename = self.semantics_provider.as_ref()?.perform_rename(
9964 &buffer,
9965 start,
9966 new_name.clone(),
9967 cx,
9968 )?;
9969
9970 Some(cx.spawn(|editor, mut cx| async move {
9971 let project_transaction = rename.await?;
9972 Self::open_project_transaction(
9973 &editor,
9974 workspace,
9975 project_transaction,
9976 format!("Rename: {} → {}", old_name, new_name),
9977 cx.clone(),
9978 )
9979 .await?;
9980
9981 editor.update(&mut cx, |editor, cx| {
9982 editor.refresh_document_highlights(cx);
9983 })?;
9984 Ok(())
9985 }))
9986 }
9987
9988 fn take_rename(
9989 &mut self,
9990 moving_cursor: bool,
9991 cx: &mut ViewContext<Self>,
9992 ) -> Option<RenameState> {
9993 let rename = self.pending_rename.take()?;
9994 if rename.editor.focus_handle(cx).is_focused(cx) {
9995 cx.focus(&self.focus_handle);
9996 }
9997
9998 self.remove_blocks(
9999 [rename.block_id].into_iter().collect(),
10000 Some(Autoscroll::fit()),
10001 cx,
10002 );
10003 self.clear_highlights::<Rename>(cx);
10004 self.show_local_selections = true;
10005
10006 if moving_cursor {
10007 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10008 editor.selections.newest::<usize>(cx).head()
10009 });
10010
10011 // Update the selection to match the position of the selection inside
10012 // the rename editor.
10013 let snapshot = self.buffer.read(cx).read(cx);
10014 let rename_range = rename.range.to_offset(&snapshot);
10015 let cursor_in_editor = snapshot
10016 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10017 .min(rename_range.end);
10018 drop(snapshot);
10019
10020 self.change_selections(None, cx, |s| {
10021 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10022 });
10023 } else {
10024 self.refresh_document_highlights(cx);
10025 }
10026
10027 Some(rename)
10028 }
10029
10030 pub fn pending_rename(&self) -> Option<&RenameState> {
10031 self.pending_rename.as_ref()
10032 }
10033
10034 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10035 let project = match &self.project {
10036 Some(project) => project.clone(),
10037 None => return None,
10038 };
10039
10040 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10041 }
10042
10043 fn format_selections(
10044 &mut self,
10045 _: &FormatSelections,
10046 cx: &mut ViewContext<Self>,
10047 ) -> Option<Task<Result<()>>> {
10048 let project = match &self.project {
10049 Some(project) => project.clone(),
10050 None => return None,
10051 };
10052
10053 let selections = self
10054 .selections
10055 .all_adjusted(cx)
10056 .into_iter()
10057 .filter(|s| !s.is_empty())
10058 .collect_vec();
10059
10060 Some(self.perform_format(
10061 project,
10062 FormatTrigger::Manual,
10063 FormatTarget::Ranges(selections),
10064 cx,
10065 ))
10066 }
10067
10068 fn perform_format(
10069 &mut self,
10070 project: Model<Project>,
10071 trigger: FormatTrigger,
10072 target: FormatTarget,
10073 cx: &mut ViewContext<Self>,
10074 ) -> Task<Result<()>> {
10075 let buffer = self.buffer().clone();
10076 let mut buffers = buffer.read(cx).all_buffers();
10077 if trigger == FormatTrigger::Save {
10078 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10079 }
10080
10081 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10082 let format = project.update(cx, |project, cx| {
10083 project.format(buffers, true, trigger, target, cx)
10084 });
10085
10086 cx.spawn(|_, mut cx| async move {
10087 let transaction = futures::select_biased! {
10088 () = timeout => {
10089 log::warn!("timed out waiting for formatting");
10090 None
10091 }
10092 transaction = format.log_err().fuse() => transaction,
10093 };
10094
10095 buffer
10096 .update(&mut cx, |buffer, cx| {
10097 if let Some(transaction) = transaction {
10098 if !buffer.is_singleton() {
10099 buffer.push_transaction(&transaction.0, cx);
10100 }
10101 }
10102
10103 cx.notify();
10104 })
10105 .ok();
10106
10107 Ok(())
10108 })
10109 }
10110
10111 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10112 if let Some(project) = self.project.clone() {
10113 self.buffer.update(cx, |multi_buffer, cx| {
10114 project.update(cx, |project, cx| {
10115 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10116 });
10117 })
10118 }
10119 }
10120
10121 fn cancel_language_server_work(
10122 &mut self,
10123 _: &actions::CancelLanguageServerWork,
10124 cx: &mut ViewContext<Self>,
10125 ) {
10126 if let Some(project) = self.project.clone() {
10127 self.buffer.update(cx, |multi_buffer, cx| {
10128 project.update(cx, |project, cx| {
10129 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10130 });
10131 })
10132 }
10133 }
10134
10135 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10136 cx.show_character_palette();
10137 }
10138
10139 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10140 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10141 let buffer = self.buffer.read(cx).snapshot(cx);
10142 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10143 let is_valid = buffer
10144 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10145 .any(|entry| {
10146 entry.diagnostic.is_primary
10147 && !entry.range.is_empty()
10148 && entry.range.start == primary_range_start
10149 && entry.diagnostic.message == active_diagnostics.primary_message
10150 });
10151
10152 if is_valid != active_diagnostics.is_valid {
10153 active_diagnostics.is_valid = is_valid;
10154 let mut new_styles = HashMap::default();
10155 for (block_id, diagnostic) in &active_diagnostics.blocks {
10156 new_styles.insert(
10157 *block_id,
10158 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10159 );
10160 }
10161 self.display_map.update(cx, |display_map, _cx| {
10162 display_map.replace_blocks(new_styles)
10163 });
10164 }
10165 }
10166 }
10167
10168 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10169 self.dismiss_diagnostics(cx);
10170 let snapshot = self.snapshot(cx);
10171 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10172 let buffer = self.buffer.read(cx).snapshot(cx);
10173
10174 let mut primary_range = None;
10175 let mut primary_message = None;
10176 let mut group_end = Point::zero();
10177 let diagnostic_group = buffer
10178 .diagnostic_group::<MultiBufferPoint>(group_id)
10179 .filter_map(|entry| {
10180 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10181 && (entry.range.start.row == entry.range.end.row
10182 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10183 {
10184 return None;
10185 }
10186 if entry.range.end > group_end {
10187 group_end = entry.range.end;
10188 }
10189 if entry.diagnostic.is_primary {
10190 primary_range = Some(entry.range.clone());
10191 primary_message = Some(entry.diagnostic.message.clone());
10192 }
10193 Some(entry)
10194 })
10195 .collect::<Vec<_>>();
10196 let primary_range = primary_range?;
10197 let primary_message = primary_message?;
10198 let primary_range =
10199 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10200
10201 let blocks = display_map
10202 .insert_blocks(
10203 diagnostic_group.iter().map(|entry| {
10204 let diagnostic = entry.diagnostic.clone();
10205 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10206 BlockProperties {
10207 style: BlockStyle::Fixed,
10208 placement: BlockPlacement::Below(
10209 buffer.anchor_after(entry.range.start),
10210 ),
10211 height: message_height,
10212 render: diagnostic_block_renderer(diagnostic, None, true, true),
10213 priority: 0,
10214 }
10215 }),
10216 cx,
10217 )
10218 .into_iter()
10219 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10220 .collect();
10221
10222 Some(ActiveDiagnosticGroup {
10223 primary_range,
10224 primary_message,
10225 group_id,
10226 blocks,
10227 is_valid: true,
10228 })
10229 });
10230 self.active_diagnostics.is_some()
10231 }
10232
10233 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10234 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10235 self.display_map.update(cx, |display_map, cx| {
10236 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10237 });
10238 cx.notify();
10239 }
10240 }
10241
10242 pub fn set_selections_from_remote(
10243 &mut self,
10244 selections: Vec<Selection<Anchor>>,
10245 pending_selection: Option<Selection<Anchor>>,
10246 cx: &mut ViewContext<Self>,
10247 ) {
10248 let old_cursor_position = self.selections.newest_anchor().head();
10249 self.selections.change_with(cx, |s| {
10250 s.select_anchors(selections);
10251 if let Some(pending_selection) = pending_selection {
10252 s.set_pending(pending_selection, SelectMode::Character);
10253 } else {
10254 s.clear_pending();
10255 }
10256 });
10257 self.selections_did_change(false, &old_cursor_position, true, cx);
10258 }
10259
10260 fn push_to_selection_history(&mut self) {
10261 self.selection_history.push(SelectionHistoryEntry {
10262 selections: self.selections.disjoint_anchors(),
10263 select_next_state: self.select_next_state.clone(),
10264 select_prev_state: self.select_prev_state.clone(),
10265 add_selections_state: self.add_selections_state.clone(),
10266 });
10267 }
10268
10269 pub fn transact(
10270 &mut self,
10271 cx: &mut ViewContext<Self>,
10272 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10273 ) -> Option<TransactionId> {
10274 self.start_transaction_at(Instant::now(), cx);
10275 update(self, cx);
10276 self.end_transaction_at(Instant::now(), cx)
10277 }
10278
10279 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10280 self.end_selection(cx);
10281 if let Some(tx_id) = self
10282 .buffer
10283 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10284 {
10285 self.selection_history
10286 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10287 cx.emit(EditorEvent::TransactionBegun {
10288 transaction_id: tx_id,
10289 })
10290 }
10291 }
10292
10293 fn end_transaction_at(
10294 &mut self,
10295 now: Instant,
10296 cx: &mut ViewContext<Self>,
10297 ) -> Option<TransactionId> {
10298 if let Some(transaction_id) = self
10299 .buffer
10300 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10301 {
10302 if let Some((_, end_selections)) =
10303 self.selection_history.transaction_mut(transaction_id)
10304 {
10305 *end_selections = Some(self.selections.disjoint_anchors());
10306 } else {
10307 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10308 }
10309
10310 cx.emit(EditorEvent::Edited { transaction_id });
10311 Some(transaction_id)
10312 } else {
10313 None
10314 }
10315 }
10316
10317 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10318 if self.is_singleton(cx) {
10319 let selection = self.selections.newest::<Point>(cx);
10320
10321 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10322 let range = if selection.is_empty() {
10323 let point = selection.head().to_display_point(&display_map);
10324 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10325 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10326 .to_point(&display_map);
10327 start..end
10328 } else {
10329 selection.range()
10330 };
10331 if display_map.folds_in_range(range).next().is_some() {
10332 self.unfold_lines(&Default::default(), cx)
10333 } else {
10334 self.fold(&Default::default(), cx)
10335 }
10336 } else {
10337 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10338 let mut toggled_buffers = HashSet::default();
10339 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10340 self.selections
10341 .disjoint_anchors()
10342 .into_iter()
10343 .map(|selection| selection.range()),
10344 ) {
10345 let buffer_id = buffer_snapshot.remote_id();
10346 if toggled_buffers.insert(buffer_id) {
10347 if self.buffer_folded(buffer_id, cx) {
10348 self.unfold_buffer(buffer_id, cx);
10349 } else {
10350 self.fold_buffer(buffer_id, cx);
10351 }
10352 }
10353 }
10354 }
10355 }
10356
10357 pub fn toggle_fold_recursive(
10358 &mut self,
10359 _: &actions::ToggleFoldRecursive,
10360 cx: &mut ViewContext<Self>,
10361 ) {
10362 let selection = self.selections.newest::<Point>(cx);
10363
10364 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10365 let range = if selection.is_empty() {
10366 let point = selection.head().to_display_point(&display_map);
10367 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10368 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10369 .to_point(&display_map);
10370 start..end
10371 } else {
10372 selection.range()
10373 };
10374 if display_map.folds_in_range(range).next().is_some() {
10375 self.unfold_recursive(&Default::default(), cx)
10376 } else {
10377 self.fold_recursive(&Default::default(), cx)
10378 }
10379 }
10380
10381 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10382 if self.is_singleton(cx) {
10383 let mut to_fold = Vec::new();
10384 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10385 let selections = self.selections.all_adjusted(cx);
10386
10387 for selection in selections {
10388 let range = selection.range().sorted();
10389 let buffer_start_row = range.start.row;
10390
10391 if range.start.row != range.end.row {
10392 let mut found = false;
10393 let mut row = range.start.row;
10394 while row <= range.end.row {
10395 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row))
10396 {
10397 found = true;
10398 row = crease.range().end.row + 1;
10399 to_fold.push(crease);
10400 } else {
10401 row += 1
10402 }
10403 }
10404 if found {
10405 continue;
10406 }
10407 }
10408
10409 for row in (0..=range.start.row).rev() {
10410 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10411 if crease.range().end.row >= buffer_start_row {
10412 to_fold.push(crease);
10413 if row <= range.start.row {
10414 break;
10415 }
10416 }
10417 }
10418 }
10419 }
10420
10421 self.fold_creases(to_fold, true, cx);
10422 } else {
10423 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10424 let mut folded_buffers = HashSet::default();
10425 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10426 self.selections
10427 .disjoint_anchors()
10428 .into_iter()
10429 .map(|selection| selection.range()),
10430 ) {
10431 let buffer_id = buffer_snapshot.remote_id();
10432 if folded_buffers.insert(buffer_id) {
10433 self.fold_buffer(buffer_id, cx);
10434 }
10435 }
10436 }
10437 }
10438
10439 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10440 if !self.buffer.read(cx).is_singleton() {
10441 return;
10442 }
10443
10444 let fold_at_level = fold_at.level;
10445 let snapshot = self.buffer.read(cx).snapshot(cx);
10446 let mut to_fold = Vec::new();
10447 let mut stack = vec![(0, snapshot.max_row().0, 1)];
10448
10449 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10450 while start_row < end_row {
10451 match self
10452 .snapshot(cx)
10453 .crease_for_buffer_row(MultiBufferRow(start_row))
10454 {
10455 Some(crease) => {
10456 let nested_start_row = crease.range().start.row + 1;
10457 let nested_end_row = crease.range().end.row;
10458
10459 if current_level < fold_at_level {
10460 stack.push((nested_start_row, nested_end_row, current_level + 1));
10461 } else if current_level == fold_at_level {
10462 to_fold.push(crease);
10463 }
10464
10465 start_row = nested_end_row + 1;
10466 }
10467 None => start_row += 1,
10468 }
10469 }
10470 }
10471
10472 self.fold_creases(to_fold, true, cx);
10473 }
10474
10475 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10476 if self.buffer.read(cx).is_singleton() {
10477 let mut fold_ranges = Vec::new();
10478 let snapshot = self.buffer.read(cx).snapshot(cx);
10479
10480 for row in 0..snapshot.max_row().0 {
10481 if let Some(foldable_range) =
10482 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
10483 {
10484 fold_ranges.push(foldable_range);
10485 }
10486 }
10487
10488 self.fold_creases(fold_ranges, true, cx);
10489 } else {
10490 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10491 editor
10492 .update(&mut cx, |editor, cx| {
10493 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10494 editor.fold_buffer(buffer_id, cx);
10495 }
10496 })
10497 .ok();
10498 });
10499 }
10500 }
10501
10502 pub fn fold_function_bodies(
10503 &mut self,
10504 _: &actions::FoldFunctionBodies,
10505 cx: &mut ViewContext<Self>,
10506 ) {
10507 let snapshot = self.buffer.read(cx).snapshot(cx);
10508 let Some((_, _, buffer)) = snapshot.as_singleton() else {
10509 return;
10510 };
10511 let creases = buffer
10512 .function_body_fold_ranges(0..buffer.len())
10513 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
10514 .collect();
10515
10516 self.fold_creases(creases, true, cx);
10517 }
10518
10519 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10520 let mut to_fold = Vec::new();
10521 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10522 let selections = self.selections.all_adjusted(cx);
10523
10524 for selection in selections {
10525 let range = selection.range().sorted();
10526 let buffer_start_row = range.start.row;
10527
10528 if range.start.row != range.end.row {
10529 let mut found = false;
10530 for row in range.start.row..=range.end.row {
10531 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10532 found = true;
10533 to_fold.push(crease);
10534 }
10535 }
10536 if found {
10537 continue;
10538 }
10539 }
10540
10541 for row in (0..=range.start.row).rev() {
10542 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10543 if crease.range().end.row >= buffer_start_row {
10544 to_fold.push(crease);
10545 } else {
10546 break;
10547 }
10548 }
10549 }
10550 }
10551
10552 self.fold_creases(to_fold, true, cx);
10553 }
10554
10555 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10556 let buffer_row = fold_at.buffer_row;
10557 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10558
10559 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
10560 let autoscroll = self
10561 .selections
10562 .all::<Point>(cx)
10563 .iter()
10564 .any(|selection| crease.range().overlaps(&selection.range()));
10565
10566 self.fold_creases(vec![crease], autoscroll, cx);
10567 }
10568 }
10569
10570 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10571 if self.is_singleton(cx) {
10572 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10573 let buffer = &display_map.buffer_snapshot;
10574 let selections = self.selections.all::<Point>(cx);
10575 let ranges = selections
10576 .iter()
10577 .map(|s| {
10578 let range = s.display_range(&display_map).sorted();
10579 let mut start = range.start.to_point(&display_map);
10580 let mut end = range.end.to_point(&display_map);
10581 start.column = 0;
10582 end.column = buffer.line_len(MultiBufferRow(end.row));
10583 start..end
10584 })
10585 .collect::<Vec<_>>();
10586
10587 self.unfold_ranges(&ranges, true, true, cx);
10588 } else {
10589 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10590 let mut unfolded_buffers = HashSet::default();
10591 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10592 self.selections
10593 .disjoint_anchors()
10594 .into_iter()
10595 .map(|selection| selection.range()),
10596 ) {
10597 let buffer_id = buffer_snapshot.remote_id();
10598 if unfolded_buffers.insert(buffer_id) {
10599 self.unfold_buffer(buffer_id, cx);
10600 }
10601 }
10602 }
10603 }
10604
10605 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10606 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10607 let selections = self.selections.all::<Point>(cx);
10608 let ranges = selections
10609 .iter()
10610 .map(|s| {
10611 let mut range = s.display_range(&display_map).sorted();
10612 *range.start.column_mut() = 0;
10613 *range.end.column_mut() = display_map.line_len(range.end.row());
10614 let start = range.start.to_point(&display_map);
10615 let end = range.end.to_point(&display_map);
10616 start..end
10617 })
10618 .collect::<Vec<_>>();
10619
10620 self.unfold_ranges(&ranges, true, true, cx);
10621 }
10622
10623 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10624 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10625
10626 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10627 ..Point::new(
10628 unfold_at.buffer_row.0,
10629 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10630 );
10631
10632 let autoscroll = self
10633 .selections
10634 .all::<Point>(cx)
10635 .iter()
10636 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10637
10638 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
10639 }
10640
10641 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10642 if self.buffer.read(cx).is_singleton() {
10643 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10644 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
10645 } else {
10646 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10647 editor
10648 .update(&mut cx, |editor, cx| {
10649 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10650 editor.unfold_buffer(buffer_id, cx);
10651 }
10652 })
10653 .ok();
10654 });
10655 }
10656 }
10657
10658 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10659 let selections = self.selections.all::<Point>(cx);
10660 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10661 let line_mode = self.selections.line_mode;
10662 let ranges = selections
10663 .into_iter()
10664 .map(|s| {
10665 if line_mode {
10666 let start = Point::new(s.start.row, 0);
10667 let end = Point::new(
10668 s.end.row,
10669 display_map
10670 .buffer_snapshot
10671 .line_len(MultiBufferRow(s.end.row)),
10672 );
10673 Crease::simple(start..end, display_map.fold_placeholder.clone())
10674 } else {
10675 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
10676 }
10677 })
10678 .collect::<Vec<_>>();
10679 self.fold_creases(ranges, true, cx);
10680 }
10681
10682 pub fn fold_creases<T: ToOffset + Clone>(
10683 &mut self,
10684 creases: Vec<Crease<T>>,
10685 auto_scroll: bool,
10686 cx: &mut ViewContext<Self>,
10687 ) {
10688 if creases.is_empty() {
10689 return;
10690 }
10691
10692 let mut buffers_affected = HashSet::default();
10693 let multi_buffer = self.buffer().read(cx);
10694 for crease in &creases {
10695 if let Some((_, buffer, _)) =
10696 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
10697 {
10698 buffers_affected.insert(buffer.read(cx).remote_id());
10699 };
10700 }
10701
10702 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
10703
10704 if auto_scroll {
10705 self.request_autoscroll(Autoscroll::fit(), cx);
10706 }
10707
10708 for buffer_id in buffers_affected {
10709 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10710 }
10711
10712 cx.notify();
10713
10714 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10715 // Clear diagnostics block when folding a range that contains it.
10716 let snapshot = self.snapshot(cx);
10717 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10718 drop(snapshot);
10719 self.active_diagnostics = Some(active_diagnostics);
10720 self.dismiss_diagnostics(cx);
10721 } else {
10722 self.active_diagnostics = Some(active_diagnostics);
10723 }
10724 }
10725
10726 self.scrollbar_marker_state.dirty = true;
10727 }
10728
10729 /// Removes any folds whose ranges intersect any of the given ranges.
10730 pub fn unfold_ranges<T: ToOffset + Clone>(
10731 &mut self,
10732 ranges: &[Range<T>],
10733 inclusive: bool,
10734 auto_scroll: bool,
10735 cx: &mut ViewContext<Self>,
10736 ) {
10737 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10738 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
10739 });
10740 }
10741
10742 pub fn fold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10743 if self.buffer().read(cx).is_singleton() || self.buffer_folded(buffer_id, cx) {
10744 return;
10745 }
10746 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10747 return;
10748 };
10749 let folded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10750 self.display_map
10751 .update(cx, |display_map, cx| display_map.fold_buffer(buffer_id, cx));
10752 cx.emit(EditorEvent::BufferFoldToggled {
10753 ids: folded_excerpts.iter().map(|&(id, _)| id).collect(),
10754 folded: true,
10755 });
10756 cx.notify();
10757 }
10758
10759 pub fn unfold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10760 if self.buffer().read(cx).is_singleton() || !self.buffer_folded(buffer_id, cx) {
10761 return;
10762 }
10763 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10764 return;
10765 };
10766 let unfolded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10767 self.display_map.update(cx, |display_map, cx| {
10768 display_map.unfold_buffer(buffer_id, cx);
10769 });
10770 cx.emit(EditorEvent::BufferFoldToggled {
10771 ids: unfolded_excerpts.iter().map(|&(id, _)| id).collect(),
10772 folded: false,
10773 });
10774 cx.notify();
10775 }
10776
10777 pub fn buffer_folded(&self, buffer: BufferId, cx: &AppContext) -> bool {
10778 self.display_map.read(cx).buffer_folded(buffer)
10779 }
10780
10781 /// Removes any folds with the given ranges.
10782 pub fn remove_folds_with_type<T: ToOffset + Clone>(
10783 &mut self,
10784 ranges: &[Range<T>],
10785 type_id: TypeId,
10786 auto_scroll: bool,
10787 cx: &mut ViewContext<Self>,
10788 ) {
10789 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10790 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
10791 });
10792 }
10793
10794 fn remove_folds_with<T: ToOffset + Clone>(
10795 &mut self,
10796 ranges: &[Range<T>],
10797 auto_scroll: bool,
10798 cx: &mut ViewContext<Self>,
10799 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
10800 ) {
10801 if ranges.is_empty() {
10802 return;
10803 }
10804
10805 let mut buffers_affected = HashSet::default();
10806 let multi_buffer = self.buffer().read(cx);
10807 for range in ranges {
10808 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10809 buffers_affected.insert(buffer.read(cx).remote_id());
10810 };
10811 }
10812
10813 self.display_map.update(cx, update);
10814
10815 if auto_scroll {
10816 self.request_autoscroll(Autoscroll::fit(), cx);
10817 }
10818
10819 for buffer_id in buffers_affected {
10820 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10821 }
10822
10823 cx.notify();
10824 self.scrollbar_marker_state.dirty = true;
10825 self.active_indent_guides_state.dirty = true;
10826 }
10827
10828 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
10829 self.display_map.read(cx).fold_placeholder.clone()
10830 }
10831
10832 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10833 if hovered != self.gutter_hovered {
10834 self.gutter_hovered = hovered;
10835 cx.notify();
10836 }
10837 }
10838
10839 pub fn insert_blocks(
10840 &mut self,
10841 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
10842 autoscroll: Option<Autoscroll>,
10843 cx: &mut ViewContext<Self>,
10844 ) -> Vec<CustomBlockId> {
10845 let blocks = self
10846 .display_map
10847 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
10848 if let Some(autoscroll) = autoscroll {
10849 self.request_autoscroll(autoscroll, cx);
10850 }
10851 cx.notify();
10852 blocks
10853 }
10854
10855 pub fn resize_blocks(
10856 &mut self,
10857 heights: HashMap<CustomBlockId, u32>,
10858 autoscroll: Option<Autoscroll>,
10859 cx: &mut ViewContext<Self>,
10860 ) {
10861 self.display_map
10862 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
10863 if let Some(autoscroll) = autoscroll {
10864 self.request_autoscroll(autoscroll, cx);
10865 }
10866 cx.notify();
10867 }
10868
10869 pub fn replace_blocks(
10870 &mut self,
10871 renderers: HashMap<CustomBlockId, RenderBlock>,
10872 autoscroll: Option<Autoscroll>,
10873 cx: &mut ViewContext<Self>,
10874 ) {
10875 self.display_map
10876 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
10877 if let Some(autoscroll) = autoscroll {
10878 self.request_autoscroll(autoscroll, cx);
10879 }
10880 cx.notify();
10881 }
10882
10883 pub fn remove_blocks(
10884 &mut self,
10885 block_ids: HashSet<CustomBlockId>,
10886 autoscroll: Option<Autoscroll>,
10887 cx: &mut ViewContext<Self>,
10888 ) {
10889 self.display_map.update(cx, |display_map, cx| {
10890 display_map.remove_blocks(block_ids, cx)
10891 });
10892 if let Some(autoscroll) = autoscroll {
10893 self.request_autoscroll(autoscroll, cx);
10894 }
10895 cx.notify();
10896 }
10897
10898 pub fn row_for_block(
10899 &self,
10900 block_id: CustomBlockId,
10901 cx: &mut ViewContext<Self>,
10902 ) -> Option<DisplayRow> {
10903 self.display_map
10904 .update(cx, |map, cx| map.row_for_block(block_id, cx))
10905 }
10906
10907 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
10908 self.focused_block = Some(focused_block);
10909 }
10910
10911 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
10912 self.focused_block.take()
10913 }
10914
10915 pub fn insert_creases(
10916 &mut self,
10917 creases: impl IntoIterator<Item = Crease<Anchor>>,
10918 cx: &mut ViewContext<Self>,
10919 ) -> Vec<CreaseId> {
10920 self.display_map
10921 .update(cx, |map, cx| map.insert_creases(creases, cx))
10922 }
10923
10924 pub fn remove_creases(
10925 &mut self,
10926 ids: impl IntoIterator<Item = CreaseId>,
10927 cx: &mut ViewContext<Self>,
10928 ) {
10929 self.display_map
10930 .update(cx, |map, cx| map.remove_creases(ids, cx));
10931 }
10932
10933 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
10934 self.display_map
10935 .update(cx, |map, cx| map.snapshot(cx))
10936 .longest_row()
10937 }
10938
10939 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
10940 self.display_map
10941 .update(cx, |map, cx| map.snapshot(cx))
10942 .max_point()
10943 }
10944
10945 pub fn text(&self, cx: &AppContext) -> String {
10946 self.buffer.read(cx).read(cx).text()
10947 }
10948
10949 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
10950 let text = self.text(cx);
10951 let text = text.trim();
10952
10953 if text.is_empty() {
10954 return None;
10955 }
10956
10957 Some(text.to_string())
10958 }
10959
10960 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
10961 self.transact(cx, |this, cx| {
10962 this.buffer
10963 .read(cx)
10964 .as_singleton()
10965 .expect("you can only call set_text on editors for singleton buffers")
10966 .update(cx, |buffer, cx| buffer.set_text(text, cx));
10967 });
10968 }
10969
10970 pub fn display_text(&self, cx: &mut AppContext) -> String {
10971 self.display_map
10972 .update(cx, |map, cx| map.snapshot(cx))
10973 .text()
10974 }
10975
10976 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
10977 let mut wrap_guides = smallvec::smallvec![];
10978
10979 if self.show_wrap_guides == Some(false) {
10980 return wrap_guides;
10981 }
10982
10983 let settings = self.buffer.read(cx).settings_at(0, cx);
10984 if settings.show_wrap_guides {
10985 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
10986 wrap_guides.push((soft_wrap as usize, true));
10987 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
10988 wrap_guides.push((soft_wrap as usize, true));
10989 }
10990 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
10991 }
10992
10993 wrap_guides
10994 }
10995
10996 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
10997 let settings = self.buffer.read(cx).settings_at(0, cx);
10998 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
10999 match mode {
11000 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11001 SoftWrap::None
11002 }
11003 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11004 language_settings::SoftWrap::PreferredLineLength => {
11005 SoftWrap::Column(settings.preferred_line_length)
11006 }
11007 language_settings::SoftWrap::Bounded => {
11008 SoftWrap::Bounded(settings.preferred_line_length)
11009 }
11010 }
11011 }
11012
11013 pub fn set_soft_wrap_mode(
11014 &mut self,
11015 mode: language_settings::SoftWrap,
11016 cx: &mut ViewContext<Self>,
11017 ) {
11018 self.soft_wrap_mode_override = Some(mode);
11019 cx.notify();
11020 }
11021
11022 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11023 self.text_style_refinement = Some(style);
11024 }
11025
11026 /// called by the Element so we know what style we were most recently rendered with.
11027 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11028 let rem_size = cx.rem_size();
11029 self.display_map.update(cx, |map, cx| {
11030 map.set_font(
11031 style.text.font(),
11032 style.text.font_size.to_pixels(rem_size),
11033 cx,
11034 )
11035 });
11036 self.style = Some(style);
11037 }
11038
11039 pub fn style(&self) -> Option<&EditorStyle> {
11040 self.style.as_ref()
11041 }
11042
11043 // Called by the element. This method is not designed to be called outside of the editor
11044 // element's layout code because it does not notify when rewrapping is computed synchronously.
11045 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11046 self.display_map
11047 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11048 }
11049
11050 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11051 if self.soft_wrap_mode_override.is_some() {
11052 self.soft_wrap_mode_override.take();
11053 } else {
11054 let soft_wrap = match self.soft_wrap_mode(cx) {
11055 SoftWrap::GitDiff => return,
11056 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11057 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11058 language_settings::SoftWrap::None
11059 }
11060 };
11061 self.soft_wrap_mode_override = Some(soft_wrap);
11062 }
11063 cx.notify();
11064 }
11065
11066 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11067 let Some(workspace) = self.workspace() else {
11068 return;
11069 };
11070 let fs = workspace.read(cx).app_state().fs.clone();
11071 let current_show = TabBarSettings::get_global(cx).show;
11072 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11073 setting.show = Some(!current_show);
11074 });
11075 }
11076
11077 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11078 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11079 self.buffer
11080 .read(cx)
11081 .settings_at(0, cx)
11082 .indent_guides
11083 .enabled
11084 });
11085 self.show_indent_guides = Some(!currently_enabled);
11086 cx.notify();
11087 }
11088
11089 fn should_show_indent_guides(&self) -> Option<bool> {
11090 self.show_indent_guides
11091 }
11092
11093 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11094 let mut editor_settings = EditorSettings::get_global(cx).clone();
11095 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11096 EditorSettings::override_global(editor_settings, cx);
11097 }
11098
11099 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11100 self.use_relative_line_numbers
11101 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11102 }
11103
11104 pub fn toggle_relative_line_numbers(
11105 &mut self,
11106 _: &ToggleRelativeLineNumbers,
11107 cx: &mut ViewContext<Self>,
11108 ) {
11109 let is_relative = self.should_use_relative_line_numbers(cx);
11110 self.set_relative_line_number(Some(!is_relative), cx)
11111 }
11112
11113 pub fn set_relative_line_number(
11114 &mut self,
11115 is_relative: Option<bool>,
11116 cx: &mut ViewContext<Self>,
11117 ) {
11118 self.use_relative_line_numbers = is_relative;
11119 cx.notify();
11120 }
11121
11122 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11123 self.show_gutter = show_gutter;
11124 cx.notify();
11125 }
11126
11127 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11128 self.show_line_numbers = Some(show_line_numbers);
11129 cx.notify();
11130 }
11131
11132 pub fn set_show_git_diff_gutter(
11133 &mut self,
11134 show_git_diff_gutter: bool,
11135 cx: &mut ViewContext<Self>,
11136 ) {
11137 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11138 cx.notify();
11139 }
11140
11141 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11142 self.show_code_actions = Some(show_code_actions);
11143 cx.notify();
11144 }
11145
11146 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11147 self.show_runnables = Some(show_runnables);
11148 cx.notify();
11149 }
11150
11151 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11152 if self.display_map.read(cx).masked != masked {
11153 self.display_map.update(cx, |map, _| map.masked = masked);
11154 }
11155 cx.notify()
11156 }
11157
11158 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11159 self.show_wrap_guides = Some(show_wrap_guides);
11160 cx.notify();
11161 }
11162
11163 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11164 self.show_indent_guides = Some(show_indent_guides);
11165 cx.notify();
11166 }
11167
11168 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11169 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11170 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11171 if let Some(dir) = file.abs_path(cx).parent() {
11172 return Some(dir.to_owned());
11173 }
11174 }
11175
11176 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11177 return Some(project_path.path.to_path_buf());
11178 }
11179 }
11180
11181 None
11182 }
11183
11184 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11185 self.active_excerpt(cx)?
11186 .1
11187 .read(cx)
11188 .file()
11189 .and_then(|f| f.as_local())
11190 }
11191
11192 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11193 if let Some(target) = self.target_file(cx) {
11194 cx.reveal_path(&target.abs_path(cx));
11195 }
11196 }
11197
11198 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11199 if let Some(file) = self.target_file(cx) {
11200 if let Some(path) = file.abs_path(cx).to_str() {
11201 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11202 }
11203 }
11204 }
11205
11206 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11207 if let Some(file) = self.target_file(cx) {
11208 if let Some(path) = file.path().to_str() {
11209 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11210 }
11211 }
11212 }
11213
11214 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11215 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11216
11217 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11218 self.start_git_blame(true, cx);
11219 }
11220
11221 cx.notify();
11222 }
11223
11224 pub fn toggle_git_blame_inline(
11225 &mut self,
11226 _: &ToggleGitBlameInline,
11227 cx: &mut ViewContext<Self>,
11228 ) {
11229 self.toggle_git_blame_inline_internal(true, cx);
11230 cx.notify();
11231 }
11232
11233 pub fn git_blame_inline_enabled(&self) -> bool {
11234 self.git_blame_inline_enabled
11235 }
11236
11237 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11238 self.show_selection_menu = self
11239 .show_selection_menu
11240 .map(|show_selections_menu| !show_selections_menu)
11241 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11242
11243 cx.notify();
11244 }
11245
11246 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11247 self.show_selection_menu
11248 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11249 }
11250
11251 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11252 if let Some(project) = self.project.as_ref() {
11253 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11254 return;
11255 };
11256
11257 if buffer.read(cx).file().is_none() {
11258 return;
11259 }
11260
11261 let focused = self.focus_handle(cx).contains_focused(cx);
11262
11263 let project = project.clone();
11264 let blame =
11265 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11266 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11267 self.blame = Some(blame);
11268 }
11269 }
11270
11271 fn toggle_git_blame_inline_internal(
11272 &mut self,
11273 user_triggered: bool,
11274 cx: &mut ViewContext<Self>,
11275 ) {
11276 if self.git_blame_inline_enabled {
11277 self.git_blame_inline_enabled = false;
11278 self.show_git_blame_inline = false;
11279 self.show_git_blame_inline_delay_task.take();
11280 } else {
11281 self.git_blame_inline_enabled = true;
11282 self.start_git_blame_inline(user_triggered, cx);
11283 }
11284
11285 cx.notify();
11286 }
11287
11288 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11289 self.start_git_blame(user_triggered, cx);
11290
11291 if ProjectSettings::get_global(cx)
11292 .git
11293 .inline_blame_delay()
11294 .is_some()
11295 {
11296 self.start_inline_blame_timer(cx);
11297 } else {
11298 self.show_git_blame_inline = true
11299 }
11300 }
11301
11302 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11303 self.blame.as_ref()
11304 }
11305
11306 pub fn show_git_blame_gutter(&self) -> bool {
11307 self.show_git_blame_gutter
11308 }
11309
11310 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11311 self.show_git_blame_gutter && self.has_blame_entries(cx)
11312 }
11313
11314 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11315 self.show_git_blame_inline
11316 && self.focus_handle.is_focused(cx)
11317 && !self.newest_selection_head_on_empty_line(cx)
11318 && self.has_blame_entries(cx)
11319 }
11320
11321 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11322 self.blame()
11323 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11324 }
11325
11326 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11327 let cursor_anchor = self.selections.newest_anchor().head();
11328
11329 let snapshot = self.buffer.read(cx).snapshot(cx);
11330 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11331
11332 snapshot.line_len(buffer_row) == 0
11333 }
11334
11335 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11336 let buffer_and_selection = maybe!({
11337 let selection = self.selections.newest::<Point>(cx);
11338 let selection_range = selection.range();
11339
11340 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11341 (buffer, selection_range.start.row..selection_range.end.row)
11342 } else {
11343 let buffer_ranges = self
11344 .buffer()
11345 .read(cx)
11346 .range_to_buffer_ranges(selection_range, cx);
11347
11348 let (buffer, range, _) = if selection.reversed {
11349 buffer_ranges.first()
11350 } else {
11351 buffer_ranges.last()
11352 }?;
11353
11354 let snapshot = buffer.read(cx).snapshot();
11355 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11356 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11357 (buffer.clone(), selection)
11358 };
11359
11360 Some((buffer, selection))
11361 });
11362
11363 let Some((buffer, selection)) = buffer_and_selection else {
11364 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11365 };
11366
11367 let Some(project) = self.project.as_ref() else {
11368 return Task::ready(Err(anyhow!("editor does not have project")));
11369 };
11370
11371 project.update(cx, |project, cx| {
11372 project.get_permalink_to_line(&buffer, selection, cx)
11373 })
11374 }
11375
11376 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11377 let permalink_task = self.get_permalink_to_line(cx);
11378 let workspace = self.workspace();
11379
11380 cx.spawn(|_, mut cx| async move {
11381 match permalink_task.await {
11382 Ok(permalink) => {
11383 cx.update(|cx| {
11384 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11385 })
11386 .ok();
11387 }
11388 Err(err) => {
11389 let message = format!("Failed to copy permalink: {err}");
11390
11391 Err::<(), anyhow::Error>(err).log_err();
11392
11393 if let Some(workspace) = workspace {
11394 workspace
11395 .update(&mut cx, |workspace, cx| {
11396 struct CopyPermalinkToLine;
11397
11398 workspace.show_toast(
11399 Toast::new(
11400 NotificationId::unique::<CopyPermalinkToLine>(),
11401 message,
11402 ),
11403 cx,
11404 )
11405 })
11406 .ok();
11407 }
11408 }
11409 }
11410 })
11411 .detach();
11412 }
11413
11414 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11415 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11416 if let Some(file) = self.target_file(cx) {
11417 if let Some(path) = file.path().to_str() {
11418 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11419 }
11420 }
11421 }
11422
11423 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11424 let permalink_task = self.get_permalink_to_line(cx);
11425 let workspace = self.workspace();
11426
11427 cx.spawn(|_, mut cx| async move {
11428 match permalink_task.await {
11429 Ok(permalink) => {
11430 cx.update(|cx| {
11431 cx.open_url(permalink.as_ref());
11432 })
11433 .ok();
11434 }
11435 Err(err) => {
11436 let message = format!("Failed to open permalink: {err}");
11437
11438 Err::<(), anyhow::Error>(err).log_err();
11439
11440 if let Some(workspace) = workspace {
11441 workspace
11442 .update(&mut cx, |workspace, cx| {
11443 struct OpenPermalinkToLine;
11444
11445 workspace.show_toast(
11446 Toast::new(
11447 NotificationId::unique::<OpenPermalinkToLine>(),
11448 message,
11449 ),
11450 cx,
11451 )
11452 })
11453 .ok();
11454 }
11455 }
11456 }
11457 })
11458 .detach();
11459 }
11460
11461 pub fn insert_uuid_v4(&mut self, _: &InsertUuidV4, cx: &mut ViewContext<Self>) {
11462 self.insert_uuid(UuidVersion::V4, cx);
11463 }
11464
11465 pub fn insert_uuid_v7(&mut self, _: &InsertUuidV7, cx: &mut ViewContext<Self>) {
11466 self.insert_uuid(UuidVersion::V7, cx);
11467 }
11468
11469 fn insert_uuid(&mut self, version: UuidVersion, cx: &mut ViewContext<Self>) {
11470 self.transact(cx, |this, cx| {
11471 let edits = this
11472 .selections
11473 .all::<Point>(cx)
11474 .into_iter()
11475 .map(|selection| {
11476 let uuid = match version {
11477 UuidVersion::V4 => uuid::Uuid::new_v4(),
11478 UuidVersion::V7 => uuid::Uuid::now_v7(),
11479 };
11480
11481 (selection.range(), uuid.to_string())
11482 });
11483 this.edit(edits, cx);
11484 this.refresh_inline_completion(true, false, cx);
11485 });
11486 }
11487
11488 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11489 /// last highlight added will be used.
11490 ///
11491 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11492 pub fn highlight_rows<T: 'static>(
11493 &mut self,
11494 range: Range<Anchor>,
11495 color: Hsla,
11496 should_autoscroll: bool,
11497 cx: &mut ViewContext<Self>,
11498 ) {
11499 let snapshot = self.buffer().read(cx).snapshot(cx);
11500 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11501 let ix = row_highlights.binary_search_by(|highlight| {
11502 Ordering::Equal
11503 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11504 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11505 });
11506
11507 if let Err(mut ix) = ix {
11508 let index = post_inc(&mut self.highlight_order);
11509
11510 // If this range intersects with the preceding highlight, then merge it with
11511 // the preceding highlight. Otherwise insert a new highlight.
11512 let mut merged = false;
11513 if ix > 0 {
11514 let prev_highlight = &mut row_highlights[ix - 1];
11515 if prev_highlight
11516 .range
11517 .end
11518 .cmp(&range.start, &snapshot)
11519 .is_ge()
11520 {
11521 ix -= 1;
11522 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11523 prev_highlight.range.end = range.end;
11524 }
11525 merged = true;
11526 prev_highlight.index = index;
11527 prev_highlight.color = color;
11528 prev_highlight.should_autoscroll = should_autoscroll;
11529 }
11530 }
11531
11532 if !merged {
11533 row_highlights.insert(
11534 ix,
11535 RowHighlight {
11536 range: range.clone(),
11537 index,
11538 color,
11539 should_autoscroll,
11540 },
11541 );
11542 }
11543
11544 // If any of the following highlights intersect with this one, merge them.
11545 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11546 let highlight = &row_highlights[ix];
11547 if next_highlight
11548 .range
11549 .start
11550 .cmp(&highlight.range.end, &snapshot)
11551 .is_le()
11552 {
11553 if next_highlight
11554 .range
11555 .end
11556 .cmp(&highlight.range.end, &snapshot)
11557 .is_gt()
11558 {
11559 row_highlights[ix].range.end = next_highlight.range.end;
11560 }
11561 row_highlights.remove(ix + 1);
11562 } else {
11563 break;
11564 }
11565 }
11566 }
11567 }
11568
11569 /// Remove any highlighted row ranges of the given type that intersect the
11570 /// given ranges.
11571 pub fn remove_highlighted_rows<T: 'static>(
11572 &mut self,
11573 ranges_to_remove: Vec<Range<Anchor>>,
11574 cx: &mut ViewContext<Self>,
11575 ) {
11576 let snapshot = self.buffer().read(cx).snapshot(cx);
11577 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11578 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11579 row_highlights.retain(|highlight| {
11580 while let Some(range_to_remove) = ranges_to_remove.peek() {
11581 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11582 Ordering::Less | Ordering::Equal => {
11583 ranges_to_remove.next();
11584 }
11585 Ordering::Greater => {
11586 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11587 Ordering::Less | Ordering::Equal => {
11588 return false;
11589 }
11590 Ordering::Greater => break,
11591 }
11592 }
11593 }
11594 }
11595
11596 true
11597 })
11598 }
11599
11600 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11601 pub fn clear_row_highlights<T: 'static>(&mut self) {
11602 self.highlighted_rows.remove(&TypeId::of::<T>());
11603 }
11604
11605 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11606 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11607 self.highlighted_rows
11608 .get(&TypeId::of::<T>())
11609 .map_or(&[] as &[_], |vec| vec.as_slice())
11610 .iter()
11611 .map(|highlight| (highlight.range.clone(), highlight.color))
11612 }
11613
11614 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11615 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11616 /// Allows to ignore certain kinds of highlights.
11617 pub fn highlighted_display_rows(
11618 &mut self,
11619 cx: &mut WindowContext,
11620 ) -> BTreeMap<DisplayRow, Hsla> {
11621 let snapshot = self.snapshot(cx);
11622 let mut used_highlight_orders = HashMap::default();
11623 self.highlighted_rows
11624 .iter()
11625 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11626 .fold(
11627 BTreeMap::<DisplayRow, Hsla>::new(),
11628 |mut unique_rows, highlight| {
11629 let start = highlight.range.start.to_display_point(&snapshot);
11630 let end = highlight.range.end.to_display_point(&snapshot);
11631 let start_row = start.row().0;
11632 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11633 && end.column() == 0
11634 {
11635 end.row().0.saturating_sub(1)
11636 } else {
11637 end.row().0
11638 };
11639 for row in start_row..=end_row {
11640 let used_index =
11641 used_highlight_orders.entry(row).or_insert(highlight.index);
11642 if highlight.index >= *used_index {
11643 *used_index = highlight.index;
11644 unique_rows.insert(DisplayRow(row), highlight.color);
11645 }
11646 }
11647 unique_rows
11648 },
11649 )
11650 }
11651
11652 pub fn highlighted_display_row_for_autoscroll(
11653 &self,
11654 snapshot: &DisplaySnapshot,
11655 ) -> Option<DisplayRow> {
11656 self.highlighted_rows
11657 .values()
11658 .flat_map(|highlighted_rows| highlighted_rows.iter())
11659 .filter_map(|highlight| {
11660 if highlight.should_autoscroll {
11661 Some(highlight.range.start.to_display_point(snapshot).row())
11662 } else {
11663 None
11664 }
11665 })
11666 .min()
11667 }
11668
11669 pub fn set_search_within_ranges(
11670 &mut self,
11671 ranges: &[Range<Anchor>],
11672 cx: &mut ViewContext<Self>,
11673 ) {
11674 self.highlight_background::<SearchWithinRange>(
11675 ranges,
11676 |colors| colors.editor_document_highlight_read_background,
11677 cx,
11678 )
11679 }
11680
11681 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11682 self.breadcrumb_header = Some(new_header);
11683 }
11684
11685 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11686 self.clear_background_highlights::<SearchWithinRange>(cx);
11687 }
11688
11689 pub fn highlight_background<T: 'static>(
11690 &mut self,
11691 ranges: &[Range<Anchor>],
11692 color_fetcher: fn(&ThemeColors) -> Hsla,
11693 cx: &mut ViewContext<Self>,
11694 ) {
11695 self.background_highlights
11696 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11697 self.scrollbar_marker_state.dirty = true;
11698 cx.notify();
11699 }
11700
11701 pub fn clear_background_highlights<T: 'static>(
11702 &mut self,
11703 cx: &mut ViewContext<Self>,
11704 ) -> Option<BackgroundHighlight> {
11705 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11706 if !text_highlights.1.is_empty() {
11707 self.scrollbar_marker_state.dirty = true;
11708 cx.notify();
11709 }
11710 Some(text_highlights)
11711 }
11712
11713 pub fn highlight_gutter<T: 'static>(
11714 &mut self,
11715 ranges: &[Range<Anchor>],
11716 color_fetcher: fn(&AppContext) -> Hsla,
11717 cx: &mut ViewContext<Self>,
11718 ) {
11719 self.gutter_highlights
11720 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11721 cx.notify();
11722 }
11723
11724 pub fn clear_gutter_highlights<T: 'static>(
11725 &mut self,
11726 cx: &mut ViewContext<Self>,
11727 ) -> Option<GutterHighlight> {
11728 cx.notify();
11729 self.gutter_highlights.remove(&TypeId::of::<T>())
11730 }
11731
11732 #[cfg(feature = "test-support")]
11733 pub fn all_text_background_highlights(
11734 &mut self,
11735 cx: &mut ViewContext<Self>,
11736 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11737 let snapshot = self.snapshot(cx);
11738 let buffer = &snapshot.buffer_snapshot;
11739 let start = buffer.anchor_before(0);
11740 let end = buffer.anchor_after(buffer.len());
11741 let theme = cx.theme().colors();
11742 self.background_highlights_in_range(start..end, &snapshot, theme)
11743 }
11744
11745 #[cfg(feature = "test-support")]
11746 pub fn search_background_highlights(
11747 &mut self,
11748 cx: &mut ViewContext<Self>,
11749 ) -> Vec<Range<Point>> {
11750 let snapshot = self.buffer().read(cx).snapshot(cx);
11751
11752 let highlights = self
11753 .background_highlights
11754 .get(&TypeId::of::<items::BufferSearchHighlights>());
11755
11756 if let Some((_color, ranges)) = highlights {
11757 ranges
11758 .iter()
11759 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11760 .collect_vec()
11761 } else {
11762 vec![]
11763 }
11764 }
11765
11766 fn document_highlights_for_position<'a>(
11767 &'a self,
11768 position: Anchor,
11769 buffer: &'a MultiBufferSnapshot,
11770 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11771 let read_highlights = self
11772 .background_highlights
11773 .get(&TypeId::of::<DocumentHighlightRead>())
11774 .map(|h| &h.1);
11775 let write_highlights = self
11776 .background_highlights
11777 .get(&TypeId::of::<DocumentHighlightWrite>())
11778 .map(|h| &h.1);
11779 let left_position = position.bias_left(buffer);
11780 let right_position = position.bias_right(buffer);
11781 read_highlights
11782 .into_iter()
11783 .chain(write_highlights)
11784 .flat_map(move |ranges| {
11785 let start_ix = match ranges.binary_search_by(|probe| {
11786 let cmp = probe.end.cmp(&left_position, buffer);
11787 if cmp.is_ge() {
11788 Ordering::Greater
11789 } else {
11790 Ordering::Less
11791 }
11792 }) {
11793 Ok(i) | Err(i) => i,
11794 };
11795
11796 ranges[start_ix..]
11797 .iter()
11798 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11799 })
11800 }
11801
11802 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11803 self.background_highlights
11804 .get(&TypeId::of::<T>())
11805 .map_or(false, |(_, highlights)| !highlights.is_empty())
11806 }
11807
11808 pub fn background_highlights_in_range(
11809 &self,
11810 search_range: Range<Anchor>,
11811 display_snapshot: &DisplaySnapshot,
11812 theme: &ThemeColors,
11813 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11814 let mut results = Vec::new();
11815 for (color_fetcher, ranges) in self.background_highlights.values() {
11816 let color = color_fetcher(theme);
11817 let start_ix = match ranges.binary_search_by(|probe| {
11818 let cmp = probe
11819 .end
11820 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11821 if cmp.is_gt() {
11822 Ordering::Greater
11823 } else {
11824 Ordering::Less
11825 }
11826 }) {
11827 Ok(i) | Err(i) => i,
11828 };
11829 for range in &ranges[start_ix..] {
11830 if range
11831 .start
11832 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11833 .is_ge()
11834 {
11835 break;
11836 }
11837
11838 let start = range.start.to_display_point(display_snapshot);
11839 let end = range.end.to_display_point(display_snapshot);
11840 results.push((start..end, color))
11841 }
11842 }
11843 results
11844 }
11845
11846 pub fn background_highlight_row_ranges<T: 'static>(
11847 &self,
11848 search_range: Range<Anchor>,
11849 display_snapshot: &DisplaySnapshot,
11850 count: usize,
11851 ) -> Vec<RangeInclusive<DisplayPoint>> {
11852 let mut results = Vec::new();
11853 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
11854 return vec![];
11855 };
11856
11857 let start_ix = match ranges.binary_search_by(|probe| {
11858 let cmp = probe
11859 .end
11860 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11861 if cmp.is_gt() {
11862 Ordering::Greater
11863 } else {
11864 Ordering::Less
11865 }
11866 }) {
11867 Ok(i) | Err(i) => i,
11868 };
11869 let mut push_region = |start: Option<Point>, end: Option<Point>| {
11870 if let (Some(start_display), Some(end_display)) = (start, end) {
11871 results.push(
11872 start_display.to_display_point(display_snapshot)
11873 ..=end_display.to_display_point(display_snapshot),
11874 );
11875 }
11876 };
11877 let mut start_row: Option<Point> = None;
11878 let mut end_row: Option<Point> = None;
11879 if ranges.len() > count {
11880 return Vec::new();
11881 }
11882 for range in &ranges[start_ix..] {
11883 if range
11884 .start
11885 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11886 .is_ge()
11887 {
11888 break;
11889 }
11890 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
11891 if let Some(current_row) = &end_row {
11892 if end.row == current_row.row {
11893 continue;
11894 }
11895 }
11896 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
11897 if start_row.is_none() {
11898 assert_eq!(end_row, None);
11899 start_row = Some(start);
11900 end_row = Some(end);
11901 continue;
11902 }
11903 if let Some(current_end) = end_row.as_mut() {
11904 if start.row > current_end.row + 1 {
11905 push_region(start_row, end_row);
11906 start_row = Some(start);
11907 end_row = Some(end);
11908 } else {
11909 // Merge two hunks.
11910 *current_end = end;
11911 }
11912 } else {
11913 unreachable!();
11914 }
11915 }
11916 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
11917 push_region(start_row, end_row);
11918 results
11919 }
11920
11921 pub fn gutter_highlights_in_range(
11922 &self,
11923 search_range: Range<Anchor>,
11924 display_snapshot: &DisplaySnapshot,
11925 cx: &AppContext,
11926 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11927 let mut results = Vec::new();
11928 for (color_fetcher, ranges) in self.gutter_highlights.values() {
11929 let color = color_fetcher(cx);
11930 let start_ix = match ranges.binary_search_by(|probe| {
11931 let cmp = probe
11932 .end
11933 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11934 if cmp.is_gt() {
11935 Ordering::Greater
11936 } else {
11937 Ordering::Less
11938 }
11939 }) {
11940 Ok(i) | Err(i) => i,
11941 };
11942 for range in &ranges[start_ix..] {
11943 if range
11944 .start
11945 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11946 .is_ge()
11947 {
11948 break;
11949 }
11950
11951 let start = range.start.to_display_point(display_snapshot);
11952 let end = range.end.to_display_point(display_snapshot);
11953 results.push((start..end, color))
11954 }
11955 }
11956 results
11957 }
11958
11959 /// Get the text ranges corresponding to the redaction query
11960 pub fn redacted_ranges(
11961 &self,
11962 search_range: Range<Anchor>,
11963 display_snapshot: &DisplaySnapshot,
11964 cx: &WindowContext,
11965 ) -> Vec<Range<DisplayPoint>> {
11966 display_snapshot
11967 .buffer_snapshot
11968 .redacted_ranges(search_range, |file| {
11969 if let Some(file) = file {
11970 file.is_private()
11971 && EditorSettings::get(
11972 Some(SettingsLocation {
11973 worktree_id: file.worktree_id(cx),
11974 path: file.path().as_ref(),
11975 }),
11976 cx,
11977 )
11978 .redact_private_values
11979 } else {
11980 false
11981 }
11982 })
11983 .map(|range| {
11984 range.start.to_display_point(display_snapshot)
11985 ..range.end.to_display_point(display_snapshot)
11986 })
11987 .collect()
11988 }
11989
11990 pub fn highlight_text<T: 'static>(
11991 &mut self,
11992 ranges: Vec<Range<Anchor>>,
11993 style: HighlightStyle,
11994 cx: &mut ViewContext<Self>,
11995 ) {
11996 self.display_map.update(cx, |map, _| {
11997 map.highlight_text(TypeId::of::<T>(), ranges, style)
11998 });
11999 cx.notify();
12000 }
12001
12002 pub(crate) fn highlight_inlays<T: 'static>(
12003 &mut self,
12004 highlights: Vec<InlayHighlight>,
12005 style: HighlightStyle,
12006 cx: &mut ViewContext<Self>,
12007 ) {
12008 self.display_map.update(cx, |map, _| {
12009 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12010 });
12011 cx.notify();
12012 }
12013
12014 pub fn text_highlights<'a, T: 'static>(
12015 &'a self,
12016 cx: &'a AppContext,
12017 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12018 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12019 }
12020
12021 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12022 let cleared = self
12023 .display_map
12024 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12025 if cleared {
12026 cx.notify();
12027 }
12028 }
12029
12030 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12031 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12032 && self.focus_handle.is_focused(cx)
12033 }
12034
12035 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12036 self.show_cursor_when_unfocused = is_enabled;
12037 cx.notify();
12038 }
12039
12040 pub fn lsp_store(&self, cx: &AppContext) -> Option<Model<LspStore>> {
12041 self.project
12042 .as_ref()
12043 .map(|project| project.read(cx).lsp_store())
12044 }
12045
12046 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12047 cx.notify();
12048 }
12049
12050 fn on_buffer_event(
12051 &mut self,
12052 multibuffer: Model<MultiBuffer>,
12053 event: &multi_buffer::Event,
12054 cx: &mut ViewContext<Self>,
12055 ) {
12056 match event {
12057 multi_buffer::Event::Edited {
12058 singleton_buffer_edited,
12059 edited_buffer: buffer_edited,
12060 } => {
12061 self.scrollbar_marker_state.dirty = true;
12062 self.active_indent_guides_state.dirty = true;
12063 self.refresh_active_diagnostics(cx);
12064 self.refresh_code_actions(cx);
12065 if self.has_active_inline_completion() {
12066 self.update_visible_inline_completion(cx);
12067 }
12068 if let Some(buffer) = buffer_edited {
12069 let buffer_id = buffer.read(cx).remote_id();
12070 if !self.registered_buffers.contains_key(&buffer_id) {
12071 if let Some(lsp_store) = self.lsp_store(cx) {
12072 lsp_store.update(cx, |lsp_store, cx| {
12073 self.registered_buffers.insert(
12074 buffer_id,
12075 lsp_store.register_buffer_with_language_servers(&buffer, cx),
12076 );
12077 })
12078 }
12079 }
12080 }
12081 cx.emit(EditorEvent::BufferEdited);
12082 cx.emit(SearchEvent::MatchesInvalidated);
12083 if *singleton_buffer_edited {
12084 if let Some(project) = &self.project {
12085 let project = project.read(cx);
12086 #[allow(clippy::mutable_key_type)]
12087 let languages_affected = multibuffer
12088 .read(cx)
12089 .all_buffers()
12090 .into_iter()
12091 .filter_map(|buffer| {
12092 let buffer = buffer.read(cx);
12093 let language = buffer.language()?;
12094 if project.is_local()
12095 && project
12096 .language_servers_for_local_buffer(buffer, cx)
12097 .count()
12098 == 0
12099 {
12100 None
12101 } else {
12102 Some(language)
12103 }
12104 })
12105 .cloned()
12106 .collect::<HashSet<_>>();
12107 if !languages_affected.is_empty() {
12108 self.refresh_inlay_hints(
12109 InlayHintRefreshReason::BufferEdited(languages_affected),
12110 cx,
12111 );
12112 }
12113 }
12114 }
12115
12116 let Some(project) = &self.project else { return };
12117 let (telemetry, is_via_ssh) = {
12118 let project = project.read(cx);
12119 let telemetry = project.client().telemetry().clone();
12120 let is_via_ssh = project.is_via_ssh();
12121 (telemetry, is_via_ssh)
12122 };
12123 refresh_linked_ranges(self, cx);
12124 telemetry.log_edit_event("editor", is_via_ssh);
12125 }
12126 multi_buffer::Event::ExcerptsAdded {
12127 buffer,
12128 predecessor,
12129 excerpts,
12130 } => {
12131 self.tasks_update_task = Some(self.refresh_runnables(cx));
12132 let buffer_id = buffer.read(cx).remote_id();
12133 if !self.diff_map.diff_bases.contains_key(&buffer_id) {
12134 if let Some(project) = &self.project {
12135 get_unstaged_changes_for_buffers(project, [buffer.clone()], cx);
12136 }
12137 }
12138 cx.emit(EditorEvent::ExcerptsAdded {
12139 buffer: buffer.clone(),
12140 predecessor: *predecessor,
12141 excerpts: excerpts.clone(),
12142 });
12143 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12144 }
12145 multi_buffer::Event::ExcerptsRemoved { ids } => {
12146 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12147 let buffer = self.buffer.read(cx);
12148 self.registered_buffers
12149 .retain(|buffer_id, _| buffer.buffer(*buffer_id).is_some());
12150 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12151 }
12152 multi_buffer::Event::ExcerptsEdited { ids } => {
12153 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12154 }
12155 multi_buffer::Event::ExcerptsExpanded { ids } => {
12156 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12157 }
12158 multi_buffer::Event::Reparsed(buffer_id) => {
12159 self.tasks_update_task = Some(self.refresh_runnables(cx));
12160
12161 cx.emit(EditorEvent::Reparsed(*buffer_id));
12162 }
12163 multi_buffer::Event::LanguageChanged(buffer_id) => {
12164 linked_editing_ranges::refresh_linked_ranges(self, cx);
12165 cx.emit(EditorEvent::Reparsed(*buffer_id));
12166 cx.notify();
12167 }
12168 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12169 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12170 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12171 cx.emit(EditorEvent::TitleChanged)
12172 }
12173 // multi_buffer::Event::DiffBaseChanged => {
12174 // self.scrollbar_marker_state.dirty = true;
12175 // cx.emit(EditorEvent::DiffBaseChanged);
12176 // cx.notify();
12177 // }
12178 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12179 multi_buffer::Event::DiagnosticsUpdated => {
12180 self.refresh_active_diagnostics(cx);
12181 self.scrollbar_marker_state.dirty = true;
12182 cx.notify();
12183 }
12184 _ => {}
12185 };
12186 }
12187
12188 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12189 cx.notify();
12190 }
12191
12192 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12193 self.tasks_update_task = Some(self.refresh_runnables(cx));
12194 self.refresh_inline_completion(true, false, cx);
12195 self.refresh_inlay_hints(
12196 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12197 self.selections.newest_anchor().head(),
12198 &self.buffer.read(cx).snapshot(cx),
12199 cx,
12200 )),
12201 cx,
12202 );
12203
12204 let old_cursor_shape = self.cursor_shape;
12205
12206 {
12207 let editor_settings = EditorSettings::get_global(cx);
12208 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12209 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12210 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12211 }
12212
12213 if old_cursor_shape != self.cursor_shape {
12214 cx.emit(EditorEvent::CursorShapeChanged);
12215 }
12216
12217 let project_settings = ProjectSettings::get_global(cx);
12218 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12219
12220 if self.mode == EditorMode::Full {
12221 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12222 if self.git_blame_inline_enabled != inline_blame_enabled {
12223 self.toggle_git_blame_inline_internal(false, cx);
12224 }
12225 }
12226
12227 cx.notify();
12228 }
12229
12230 pub fn set_searchable(&mut self, searchable: bool) {
12231 self.searchable = searchable;
12232 }
12233
12234 pub fn searchable(&self) -> bool {
12235 self.searchable
12236 }
12237
12238 fn open_proposed_changes_editor(
12239 &mut self,
12240 _: &OpenProposedChangesEditor,
12241 cx: &mut ViewContext<Self>,
12242 ) {
12243 let Some(workspace) = self.workspace() else {
12244 cx.propagate();
12245 return;
12246 };
12247
12248 let selections = self.selections.all::<usize>(cx);
12249 let buffer = self.buffer.read(cx);
12250 let mut new_selections_by_buffer = HashMap::default();
12251 for selection in selections {
12252 for (buffer, range, _) in
12253 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12254 {
12255 let mut range = range.to_point(buffer.read(cx));
12256 range.start.column = 0;
12257 range.end.column = buffer.read(cx).line_len(range.end.row);
12258 new_selections_by_buffer
12259 .entry(buffer)
12260 .or_insert(Vec::new())
12261 .push(range)
12262 }
12263 }
12264
12265 let proposed_changes_buffers = new_selections_by_buffer
12266 .into_iter()
12267 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12268 .collect::<Vec<_>>();
12269 let proposed_changes_editor = cx.new_view(|cx| {
12270 ProposedChangesEditor::new(
12271 "Proposed changes",
12272 proposed_changes_buffers,
12273 self.project.clone(),
12274 cx,
12275 )
12276 });
12277
12278 cx.window_context().defer(move |cx| {
12279 workspace.update(cx, |workspace, cx| {
12280 workspace.active_pane().update(cx, |pane, cx| {
12281 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12282 });
12283 });
12284 });
12285 }
12286
12287 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12288 self.open_excerpts_common(None, true, cx)
12289 }
12290
12291 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12292 self.open_excerpts_common(None, false, cx)
12293 }
12294
12295 fn open_excerpts_common(
12296 &mut self,
12297 jump_data: Option<JumpData>,
12298 split: bool,
12299 cx: &mut ViewContext<Self>,
12300 ) {
12301 let Some(workspace) = self.workspace() else {
12302 cx.propagate();
12303 return;
12304 };
12305
12306 if self.buffer.read(cx).is_singleton() {
12307 cx.propagate();
12308 return;
12309 }
12310
12311 let mut new_selections_by_buffer = HashMap::default();
12312 match &jump_data {
12313 Some(jump_data) => {
12314 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12315 if let Some(buffer) = multi_buffer_snapshot
12316 .buffer_id_for_excerpt(jump_data.excerpt_id)
12317 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12318 {
12319 let buffer_snapshot = buffer.read(cx).snapshot();
12320 let jump_to_point = if buffer_snapshot.can_resolve(&jump_data.anchor) {
12321 language::ToPoint::to_point(&jump_data.anchor, &buffer_snapshot)
12322 } else {
12323 buffer_snapshot.clip_point(jump_data.position, Bias::Left)
12324 };
12325 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12326 new_selections_by_buffer.insert(
12327 buffer,
12328 (
12329 vec![jump_to_offset..jump_to_offset],
12330 Some(jump_data.line_offset_from_top),
12331 ),
12332 );
12333 }
12334 }
12335 None => {
12336 let selections = self.selections.all::<usize>(cx);
12337 let buffer = self.buffer.read(cx);
12338 for selection in selections {
12339 for (mut buffer_handle, mut range, _) in
12340 buffer.range_to_buffer_ranges(selection.range(), cx)
12341 {
12342 // When editing branch buffers, jump to the corresponding location
12343 // in their base buffer.
12344 let buffer = buffer_handle.read(cx);
12345 if let Some(base_buffer) = buffer.base_buffer() {
12346 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12347 buffer_handle = base_buffer;
12348 }
12349
12350 if selection.reversed {
12351 mem::swap(&mut range.start, &mut range.end);
12352 }
12353 new_selections_by_buffer
12354 .entry(buffer_handle)
12355 .or_insert((Vec::new(), None))
12356 .0
12357 .push(range)
12358 }
12359 }
12360 }
12361 }
12362
12363 if new_selections_by_buffer.is_empty() {
12364 return;
12365 }
12366
12367 // We defer the pane interaction because we ourselves are a workspace item
12368 // and activating a new item causes the pane to call a method on us reentrantly,
12369 // which panics if we're on the stack.
12370 cx.window_context().defer(move |cx| {
12371 workspace.update(cx, |workspace, cx| {
12372 let pane = if split {
12373 workspace.adjacent_pane(cx)
12374 } else {
12375 workspace.active_pane().clone()
12376 };
12377
12378 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12379 let editor = buffer
12380 .read(cx)
12381 .file()
12382 .is_none()
12383 .then(|| {
12384 // Handle file-less buffers separately: those are not really the project items, so won't have a paroject path or entity id,
12385 // so `workspace.open_project_item` will never find them, always opening a new editor.
12386 // Instead, we try to activate the existing editor in the pane first.
12387 let (editor, pane_item_index) =
12388 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12389 let editor = item.downcast::<Editor>()?;
12390 let singleton_buffer =
12391 editor.read(cx).buffer().read(cx).as_singleton()?;
12392 if singleton_buffer == buffer {
12393 Some((editor, i))
12394 } else {
12395 None
12396 }
12397 })?;
12398 pane.update(cx, |pane, cx| {
12399 pane.activate_item(pane_item_index, true, true, cx)
12400 });
12401 Some(editor)
12402 })
12403 .flatten()
12404 .unwrap_or_else(|| {
12405 workspace.open_project_item::<Self>(
12406 pane.clone(),
12407 buffer,
12408 true,
12409 true,
12410 cx,
12411 )
12412 });
12413
12414 editor.update(cx, |editor, cx| {
12415 let autoscroll = match scroll_offset {
12416 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12417 None => Autoscroll::newest(),
12418 };
12419 let nav_history = editor.nav_history.take();
12420 editor.change_selections(Some(autoscroll), cx, |s| {
12421 s.select_ranges(ranges);
12422 });
12423 editor.nav_history = nav_history;
12424 });
12425 }
12426 })
12427 });
12428 }
12429
12430 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12431 let snapshot = self.buffer.read(cx).read(cx);
12432 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12433 Some(
12434 ranges
12435 .iter()
12436 .map(move |range| {
12437 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12438 })
12439 .collect(),
12440 )
12441 }
12442
12443 fn selection_replacement_ranges(
12444 &self,
12445 range: Range<OffsetUtf16>,
12446 cx: &mut AppContext,
12447 ) -> Vec<Range<OffsetUtf16>> {
12448 let selections = self.selections.all::<OffsetUtf16>(cx);
12449 let newest_selection = selections
12450 .iter()
12451 .max_by_key(|selection| selection.id)
12452 .unwrap();
12453 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12454 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12455 let snapshot = self.buffer.read(cx).read(cx);
12456 selections
12457 .into_iter()
12458 .map(|mut selection| {
12459 selection.start.0 =
12460 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12461 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12462 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12463 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12464 })
12465 .collect()
12466 }
12467
12468 fn report_editor_event(
12469 &self,
12470 operation: &'static str,
12471 file_extension: Option<String>,
12472 cx: &AppContext,
12473 ) {
12474 if cfg!(any(test, feature = "test-support")) {
12475 return;
12476 }
12477
12478 let Some(project) = &self.project else { return };
12479
12480 // If None, we are in a file without an extension
12481 let file = self
12482 .buffer
12483 .read(cx)
12484 .as_singleton()
12485 .and_then(|b| b.read(cx).file());
12486 let file_extension = file_extension.or(file
12487 .as_ref()
12488 .and_then(|file| Path::new(file.file_name(cx)).extension())
12489 .and_then(|e| e.to_str())
12490 .map(|a| a.to_string()));
12491
12492 let vim_mode = cx
12493 .global::<SettingsStore>()
12494 .raw_user_settings()
12495 .get("vim_mode")
12496 == Some(&serde_json::Value::Bool(true));
12497
12498 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12499 == language::language_settings::InlineCompletionProvider::Copilot;
12500 let copilot_enabled_for_language = self
12501 .buffer
12502 .read(cx)
12503 .settings_at(0, cx)
12504 .show_inline_completions;
12505
12506 let project = project.read(cx);
12507 let telemetry = project.client().telemetry().clone();
12508 telemetry.report_editor_event(
12509 file_extension,
12510 vim_mode,
12511 operation,
12512 copilot_enabled,
12513 copilot_enabled_for_language,
12514 project.is_via_ssh(),
12515 )
12516 }
12517
12518 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12519 /// with each line being an array of {text, highlight} objects.
12520 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12521 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12522 return;
12523 };
12524
12525 #[derive(Serialize)]
12526 struct Chunk<'a> {
12527 text: String,
12528 highlight: Option<&'a str>,
12529 }
12530
12531 let snapshot = buffer.read(cx).snapshot();
12532 let range = self
12533 .selected_text_range(false, cx)
12534 .and_then(|selection| {
12535 if selection.range.is_empty() {
12536 None
12537 } else {
12538 Some(selection.range)
12539 }
12540 })
12541 .unwrap_or_else(|| 0..snapshot.len());
12542
12543 let chunks = snapshot.chunks(range, true);
12544 let mut lines = Vec::new();
12545 let mut line: VecDeque<Chunk> = VecDeque::new();
12546
12547 let Some(style) = self.style.as_ref() else {
12548 return;
12549 };
12550
12551 for chunk in chunks {
12552 let highlight = chunk
12553 .syntax_highlight_id
12554 .and_then(|id| id.name(&style.syntax));
12555 let mut chunk_lines = chunk.text.split('\n').peekable();
12556 while let Some(text) = chunk_lines.next() {
12557 let mut merged_with_last_token = false;
12558 if let Some(last_token) = line.back_mut() {
12559 if last_token.highlight == highlight {
12560 last_token.text.push_str(text);
12561 merged_with_last_token = true;
12562 }
12563 }
12564
12565 if !merged_with_last_token {
12566 line.push_back(Chunk {
12567 text: text.into(),
12568 highlight,
12569 });
12570 }
12571
12572 if chunk_lines.peek().is_some() {
12573 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12574 line.pop_front();
12575 }
12576 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12577 line.pop_back();
12578 }
12579
12580 lines.push(mem::take(&mut line));
12581 }
12582 }
12583 }
12584
12585 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12586 return;
12587 };
12588 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12589 }
12590
12591 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
12592 self.request_autoscroll(Autoscroll::newest(), cx);
12593 let position = self.selections.newest_display(cx).start;
12594 mouse_context_menu::deploy_context_menu(self, None, position, cx);
12595 }
12596
12597 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12598 &self.inlay_hint_cache
12599 }
12600
12601 pub fn replay_insert_event(
12602 &mut self,
12603 text: &str,
12604 relative_utf16_range: Option<Range<isize>>,
12605 cx: &mut ViewContext<Self>,
12606 ) {
12607 if !self.input_enabled {
12608 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12609 return;
12610 }
12611 if let Some(relative_utf16_range) = relative_utf16_range {
12612 let selections = self.selections.all::<OffsetUtf16>(cx);
12613 self.change_selections(None, cx, |s| {
12614 let new_ranges = selections.into_iter().map(|range| {
12615 let start = OffsetUtf16(
12616 range
12617 .head()
12618 .0
12619 .saturating_add_signed(relative_utf16_range.start),
12620 );
12621 let end = OffsetUtf16(
12622 range
12623 .head()
12624 .0
12625 .saturating_add_signed(relative_utf16_range.end),
12626 );
12627 start..end
12628 });
12629 s.select_ranges(new_ranges);
12630 });
12631 }
12632
12633 self.handle_input(text, cx);
12634 }
12635
12636 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12637 let Some(provider) = self.semantics_provider.as_ref() else {
12638 return false;
12639 };
12640
12641 let mut supports = false;
12642 self.buffer().read(cx).for_each_buffer(|buffer| {
12643 supports |= provider.supports_inlay_hints(buffer, cx);
12644 });
12645 supports
12646 }
12647
12648 pub fn focus(&self, cx: &mut WindowContext) {
12649 cx.focus(&self.focus_handle)
12650 }
12651
12652 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12653 self.focus_handle.is_focused(cx)
12654 }
12655
12656 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12657 cx.emit(EditorEvent::Focused);
12658
12659 if let Some(descendant) = self
12660 .last_focused_descendant
12661 .take()
12662 .and_then(|descendant| descendant.upgrade())
12663 {
12664 cx.focus(&descendant);
12665 } else {
12666 if let Some(blame) = self.blame.as_ref() {
12667 blame.update(cx, GitBlame::focus)
12668 }
12669
12670 self.blink_manager.update(cx, BlinkManager::enable);
12671 self.show_cursor_names(cx);
12672 self.buffer.update(cx, |buffer, cx| {
12673 buffer.finalize_last_transaction(cx);
12674 if self.leader_peer_id.is_none() {
12675 buffer.set_active_selections(
12676 &self.selections.disjoint_anchors(),
12677 self.selections.line_mode,
12678 self.cursor_shape,
12679 cx,
12680 );
12681 }
12682 });
12683 }
12684 }
12685
12686 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12687 cx.emit(EditorEvent::FocusedIn)
12688 }
12689
12690 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12691 if event.blurred != self.focus_handle {
12692 self.last_focused_descendant = Some(event.blurred);
12693 }
12694 }
12695
12696 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12697 self.blink_manager.update(cx, BlinkManager::disable);
12698 self.buffer
12699 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12700
12701 if let Some(blame) = self.blame.as_ref() {
12702 blame.update(cx, GitBlame::blur)
12703 }
12704 if !self.hover_state.focused(cx) {
12705 hide_hover(self, cx);
12706 }
12707
12708 self.hide_context_menu(cx);
12709 cx.emit(EditorEvent::Blurred);
12710 cx.notify();
12711 }
12712
12713 pub fn register_action<A: Action>(
12714 &mut self,
12715 listener: impl Fn(&A, &mut WindowContext) + 'static,
12716 ) -> Subscription {
12717 let id = self.next_editor_action_id.post_inc();
12718 let listener = Arc::new(listener);
12719 self.editor_actions.borrow_mut().insert(
12720 id,
12721 Box::new(move |cx| {
12722 let cx = cx.window_context();
12723 let listener = listener.clone();
12724 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12725 let action = action.downcast_ref().unwrap();
12726 if phase == DispatchPhase::Bubble {
12727 listener(action, cx)
12728 }
12729 })
12730 }),
12731 );
12732
12733 let editor_actions = self.editor_actions.clone();
12734 Subscription::new(move || {
12735 editor_actions.borrow_mut().remove(&id);
12736 })
12737 }
12738
12739 pub fn file_header_size(&self) -> u32 {
12740 FILE_HEADER_HEIGHT
12741 }
12742
12743 pub fn revert(
12744 &mut self,
12745 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12746 cx: &mut ViewContext<Self>,
12747 ) {
12748 self.buffer().update(cx, |multi_buffer, cx| {
12749 for (buffer_id, changes) in revert_changes {
12750 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12751 buffer.update(cx, |buffer, cx| {
12752 buffer.edit(
12753 changes.into_iter().map(|(range, text)| {
12754 (range, text.to_string().map(Arc::<str>::from))
12755 }),
12756 None,
12757 cx,
12758 );
12759 });
12760 }
12761 }
12762 });
12763 self.change_selections(None, cx, |selections| selections.refresh());
12764 }
12765
12766 pub fn to_pixel_point(
12767 &mut self,
12768 source: multi_buffer::Anchor,
12769 editor_snapshot: &EditorSnapshot,
12770 cx: &mut ViewContext<Self>,
12771 ) -> Option<gpui::Point<Pixels>> {
12772 let source_point = source.to_display_point(editor_snapshot);
12773 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12774 }
12775
12776 pub fn display_to_pixel_point(
12777 &self,
12778 source: DisplayPoint,
12779 editor_snapshot: &EditorSnapshot,
12780 cx: &WindowContext,
12781 ) -> Option<gpui::Point<Pixels>> {
12782 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12783 let text_layout_details = self.text_layout_details(cx);
12784 let scroll_top = text_layout_details
12785 .scroll_anchor
12786 .scroll_position(editor_snapshot)
12787 .y;
12788
12789 if source.row().as_f32() < scroll_top.floor() {
12790 return None;
12791 }
12792 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12793 let source_y = line_height * (source.row().as_f32() - scroll_top);
12794 Some(gpui::Point::new(source_x, source_y))
12795 }
12796
12797 pub fn has_active_completions_menu(&self) -> bool {
12798 self.context_menu.borrow().as_ref().map_or(false, |menu| {
12799 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
12800 })
12801 }
12802
12803 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12804 self.addons
12805 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
12806 }
12807
12808 pub fn unregister_addon<T: Addon>(&mut self) {
12809 self.addons.remove(&std::any::TypeId::of::<T>());
12810 }
12811
12812 pub fn addon<T: Addon>(&self) -> Option<&T> {
12813 let type_id = std::any::TypeId::of::<T>();
12814 self.addons
12815 .get(&type_id)
12816 .and_then(|item| item.to_any().downcast_ref::<T>())
12817 }
12818
12819 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
12820 let text_layout_details = self.text_layout_details(cx);
12821 let style = &text_layout_details.editor_style;
12822 let font_id = cx.text_system().resolve_font(&style.text.font());
12823 let font_size = style.text.font_size.to_pixels(cx.rem_size());
12824 let line_height = style.text.line_height_in_pixels(cx.rem_size());
12825
12826 let em_width = cx
12827 .text_system()
12828 .typographic_bounds(font_id, font_size, 'm')
12829 .unwrap()
12830 .size
12831 .width;
12832
12833 gpui::Point::new(em_width, line_height)
12834 }
12835}
12836
12837fn get_unstaged_changes_for_buffers(
12838 project: &Model<Project>,
12839 buffers: impl IntoIterator<Item = Model<Buffer>>,
12840 cx: &mut ViewContext<Editor>,
12841) {
12842 let mut tasks = Vec::new();
12843 project.update(cx, |project, cx| {
12844 for buffer in buffers {
12845 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
12846 }
12847 });
12848 cx.spawn(|this, mut cx| async move {
12849 let change_sets = futures::future::join_all(tasks).await;
12850 this.update(&mut cx, |this, cx| {
12851 for change_set in change_sets {
12852 if let Some(change_set) = change_set.log_err() {
12853 this.diff_map.add_change_set(change_set, cx);
12854 }
12855 }
12856 })
12857 .ok();
12858 })
12859 .detach();
12860}
12861
12862fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
12863 let tab_size = tab_size.get() as usize;
12864 let mut width = offset;
12865
12866 for ch in text.chars() {
12867 width += if ch == '\t' {
12868 tab_size - (width % tab_size)
12869 } else {
12870 1
12871 };
12872 }
12873
12874 width - offset
12875}
12876
12877#[cfg(test)]
12878mod tests {
12879 use super::*;
12880
12881 #[test]
12882 fn test_string_size_with_expanded_tabs() {
12883 let nz = |val| NonZeroU32::new(val).unwrap();
12884 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
12885 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
12886 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
12887 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
12888 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
12889 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
12890 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
12891 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
12892 }
12893}
12894
12895/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
12896struct WordBreakingTokenizer<'a> {
12897 input: &'a str,
12898}
12899
12900impl<'a> WordBreakingTokenizer<'a> {
12901 fn new(input: &'a str) -> Self {
12902 Self { input }
12903 }
12904}
12905
12906fn is_char_ideographic(ch: char) -> bool {
12907 use unicode_script::Script::*;
12908 use unicode_script::UnicodeScript;
12909 matches!(ch.script(), Han | Tangut | Yi)
12910}
12911
12912fn is_grapheme_ideographic(text: &str) -> bool {
12913 text.chars().any(is_char_ideographic)
12914}
12915
12916fn is_grapheme_whitespace(text: &str) -> bool {
12917 text.chars().any(|x| x.is_whitespace())
12918}
12919
12920fn should_stay_with_preceding_ideograph(text: &str) -> bool {
12921 text.chars().next().map_or(false, |ch| {
12922 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
12923 })
12924}
12925
12926#[derive(PartialEq, Eq, Debug, Clone, Copy)]
12927struct WordBreakToken<'a> {
12928 token: &'a str,
12929 grapheme_len: usize,
12930 is_whitespace: bool,
12931}
12932
12933impl<'a> Iterator for WordBreakingTokenizer<'a> {
12934 /// Yields a span, the count of graphemes in the token, and whether it was
12935 /// whitespace. Note that it also breaks at word boundaries.
12936 type Item = WordBreakToken<'a>;
12937
12938 fn next(&mut self) -> Option<Self::Item> {
12939 use unicode_segmentation::UnicodeSegmentation;
12940 if self.input.is_empty() {
12941 return None;
12942 }
12943
12944 let mut iter = self.input.graphemes(true).peekable();
12945 let mut offset = 0;
12946 let mut graphemes = 0;
12947 if let Some(first_grapheme) = iter.next() {
12948 let is_whitespace = is_grapheme_whitespace(first_grapheme);
12949 offset += first_grapheme.len();
12950 graphemes += 1;
12951 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
12952 if let Some(grapheme) = iter.peek().copied() {
12953 if should_stay_with_preceding_ideograph(grapheme) {
12954 offset += grapheme.len();
12955 graphemes += 1;
12956 }
12957 }
12958 } else {
12959 let mut words = self.input[offset..].split_word_bound_indices().peekable();
12960 let mut next_word_bound = words.peek().copied();
12961 if next_word_bound.map_or(false, |(i, _)| i == 0) {
12962 next_word_bound = words.next();
12963 }
12964 while let Some(grapheme) = iter.peek().copied() {
12965 if next_word_bound.map_or(false, |(i, _)| i == offset) {
12966 break;
12967 };
12968 if is_grapheme_whitespace(grapheme) != is_whitespace {
12969 break;
12970 };
12971 offset += grapheme.len();
12972 graphemes += 1;
12973 iter.next();
12974 }
12975 }
12976 let token = &self.input[..offset];
12977 self.input = &self.input[offset..];
12978 if is_whitespace {
12979 Some(WordBreakToken {
12980 token: " ",
12981 grapheme_len: 1,
12982 is_whitespace: true,
12983 })
12984 } else {
12985 Some(WordBreakToken {
12986 token,
12987 grapheme_len: graphemes,
12988 is_whitespace: false,
12989 })
12990 }
12991 } else {
12992 None
12993 }
12994 }
12995}
12996
12997#[test]
12998fn test_word_breaking_tokenizer() {
12999 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13000 ("", &[]),
13001 (" ", &[(" ", 1, true)]),
13002 ("Ʒ", &[("Ʒ", 1, false)]),
13003 ("Ǽ", &[("Ǽ", 1, false)]),
13004 ("⋑", &[("⋑", 1, false)]),
13005 ("⋑⋑", &[("⋑⋑", 2, false)]),
13006 (
13007 "原理，进而",
13008 &[
13009 ("原", 1, false),
13010 ("理，", 2, false),
13011 ("进", 1, false),
13012 ("而", 1, false),
13013 ],
13014 ),
13015 (
13016 "hello world",
13017 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13018 ),
13019 (
13020 "hello, world",
13021 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13022 ),
13023 (
13024 " hello world",
13025 &[
13026 (" ", 1, true),
13027 ("hello", 5, false),
13028 (" ", 1, true),
13029 ("world", 5, false),
13030 ],
13031 ),
13032 (
13033 "这是什么 \n 钢笔",
13034 &[
13035 ("这", 1, false),
13036 ("是", 1, false),
13037 ("什", 1, false),
13038 ("么", 1, false),
13039 (" ", 1, true),
13040 ("钢", 1, false),
13041 ("笔", 1, false),
13042 ],
13043 ),
13044 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13045 ];
13046
13047 for (input, result) in tests {
13048 assert_eq!(
13049 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13050 result
13051 .iter()
13052 .copied()
13053 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13054 token,
13055 grapheme_len,
13056 is_whitespace,
13057 })
13058 .collect::<Vec<_>>()
13059 );
13060 }
13061}
13062
13063fn wrap_with_prefix(
13064 line_prefix: String,
13065 unwrapped_text: String,
13066 wrap_column: usize,
13067 tab_size: NonZeroU32,
13068) -> String {
13069 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13070 let mut wrapped_text = String::new();
13071 let mut current_line = line_prefix.clone();
13072
13073 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13074 let mut current_line_len = line_prefix_len;
13075 for WordBreakToken {
13076 token,
13077 grapheme_len,
13078 is_whitespace,
13079 } in tokenizer
13080 {
13081 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13082 wrapped_text.push_str(current_line.trim_end());
13083 wrapped_text.push('\n');
13084 current_line.truncate(line_prefix.len());
13085 current_line_len = line_prefix_len;
13086 if !is_whitespace {
13087 current_line.push_str(token);
13088 current_line_len += grapheme_len;
13089 }
13090 } else if !is_whitespace {
13091 current_line.push_str(token);
13092 current_line_len += grapheme_len;
13093 } else if current_line_len != line_prefix_len {
13094 current_line.push(' ');
13095 current_line_len += 1;
13096 }
13097 }
13098
13099 if !current_line.is_empty() {
13100 wrapped_text.push_str(¤t_line);
13101 }
13102 wrapped_text
13103}
13104
13105#[test]
13106fn test_wrap_with_prefix() {
13107 assert_eq!(
13108 wrap_with_prefix(
13109 "# ".to_string(),
13110 "abcdefg".to_string(),
13111 4,
13112 NonZeroU32::new(4).unwrap()
13113 ),
13114 "# abcdefg"
13115 );
13116 assert_eq!(
13117 wrap_with_prefix(
13118 "".to_string(),
13119 "\thello world".to_string(),
13120 8,
13121 NonZeroU32::new(4).unwrap()
13122 ),
13123 "hello\nworld"
13124 );
13125 assert_eq!(
13126 wrap_with_prefix(
13127 "// ".to_string(),
13128 "xx \nyy zz aa bb cc".to_string(),
13129 12,
13130 NonZeroU32::new(4).unwrap()
13131 ),
13132 "// xx yy zz\n// aa bb cc"
13133 );
13134 assert_eq!(
13135 wrap_with_prefix(
13136 String::new(),
13137 "这是什么 \n 钢笔".to_string(),
13138 3,
13139 NonZeroU32::new(4).unwrap()
13140 ),
13141 "这是什\n么 钢\n笔"
13142 );
13143}
13144
13145fn hunks_for_selections(
13146 snapshot: &EditorSnapshot,
13147 selections: &[Selection<Point>],
13148) -> Vec<MultiBufferDiffHunk> {
13149 hunks_for_ranges(
13150 selections.iter().map(|selection| selection.range()),
13151 snapshot,
13152 )
13153}
13154
13155pub fn hunks_for_ranges(
13156 ranges: impl Iterator<Item = Range<Point>>,
13157 snapshot: &EditorSnapshot,
13158) -> Vec<MultiBufferDiffHunk> {
13159 let mut hunks = Vec::new();
13160 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13161 HashMap::default();
13162 for query_range in ranges {
13163 let query_rows =
13164 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
13165 for hunk in snapshot.diff_map.diff_hunks_in_range(
13166 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
13167 &snapshot.buffer_snapshot,
13168 ) {
13169 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13170 // when the caret is just above or just below the deleted hunk.
13171 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13172 let related_to_selection = if allow_adjacent {
13173 hunk.row_range.overlaps(&query_rows)
13174 || hunk.row_range.start == query_rows.end
13175 || hunk.row_range.end == query_rows.start
13176 } else {
13177 hunk.row_range.overlaps(&query_rows)
13178 };
13179 if related_to_selection {
13180 if !processed_buffer_rows
13181 .entry(hunk.buffer_id)
13182 .or_default()
13183 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13184 {
13185 continue;
13186 }
13187 hunks.push(hunk);
13188 }
13189 }
13190 }
13191
13192 hunks
13193}
13194
13195pub trait CollaborationHub {
13196 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13197 fn user_participant_indices<'a>(
13198 &self,
13199 cx: &'a AppContext,
13200 ) -> &'a HashMap<u64, ParticipantIndex>;
13201 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13202}
13203
13204impl CollaborationHub for Model<Project> {
13205 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13206 self.read(cx).collaborators()
13207 }
13208
13209 fn user_participant_indices<'a>(
13210 &self,
13211 cx: &'a AppContext,
13212 ) -> &'a HashMap<u64, ParticipantIndex> {
13213 self.read(cx).user_store().read(cx).participant_indices()
13214 }
13215
13216 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13217 let this = self.read(cx);
13218 let user_ids = this.collaborators().values().map(|c| c.user_id);
13219 this.user_store().read_with(cx, |user_store, cx| {
13220 user_store.participant_names(user_ids, cx)
13221 })
13222 }
13223}
13224
13225pub trait SemanticsProvider {
13226 fn hover(
13227 &self,
13228 buffer: &Model<Buffer>,
13229 position: text::Anchor,
13230 cx: &mut AppContext,
13231 ) -> Option<Task<Vec<project::Hover>>>;
13232
13233 fn inlay_hints(
13234 &self,
13235 buffer_handle: Model<Buffer>,
13236 range: Range<text::Anchor>,
13237 cx: &mut AppContext,
13238 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13239
13240 fn resolve_inlay_hint(
13241 &self,
13242 hint: InlayHint,
13243 buffer_handle: Model<Buffer>,
13244 server_id: LanguageServerId,
13245 cx: &mut AppContext,
13246 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13247
13248 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13249
13250 fn document_highlights(
13251 &self,
13252 buffer: &Model<Buffer>,
13253 position: text::Anchor,
13254 cx: &mut AppContext,
13255 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13256
13257 fn definitions(
13258 &self,
13259 buffer: &Model<Buffer>,
13260 position: text::Anchor,
13261 kind: GotoDefinitionKind,
13262 cx: &mut AppContext,
13263 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13264
13265 fn range_for_rename(
13266 &self,
13267 buffer: &Model<Buffer>,
13268 position: text::Anchor,
13269 cx: &mut AppContext,
13270 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13271
13272 fn perform_rename(
13273 &self,
13274 buffer: &Model<Buffer>,
13275 position: text::Anchor,
13276 new_name: String,
13277 cx: &mut AppContext,
13278 ) -> Option<Task<Result<ProjectTransaction>>>;
13279}
13280
13281pub trait CompletionProvider {
13282 fn completions(
13283 &self,
13284 buffer: &Model<Buffer>,
13285 buffer_position: text::Anchor,
13286 trigger: CompletionContext,
13287 cx: &mut ViewContext<Editor>,
13288 ) -> Task<Result<Vec<Completion>>>;
13289
13290 fn resolve_completions(
13291 &self,
13292 buffer: Model<Buffer>,
13293 completion_indices: Vec<usize>,
13294 completions: Rc<RefCell<Box<[Completion]>>>,
13295 cx: &mut ViewContext<Editor>,
13296 ) -> Task<Result<bool>>;
13297
13298 fn apply_additional_edits_for_completion(
13299 &self,
13300 buffer: Model<Buffer>,
13301 completion: Completion,
13302 push_to_history: bool,
13303 cx: &mut ViewContext<Editor>,
13304 ) -> Task<Result<Option<language::Transaction>>>;
13305
13306 fn is_completion_trigger(
13307 &self,
13308 buffer: &Model<Buffer>,
13309 position: language::Anchor,
13310 text: &str,
13311 trigger_in_words: bool,
13312 cx: &mut ViewContext<Editor>,
13313 ) -> bool;
13314
13315 fn sort_completions(&self) -> bool {
13316 true
13317 }
13318}
13319
13320pub trait CodeActionProvider {
13321 fn code_actions(
13322 &self,
13323 buffer: &Model<Buffer>,
13324 range: Range<text::Anchor>,
13325 cx: &mut WindowContext,
13326 ) -> Task<Result<Vec<CodeAction>>>;
13327
13328 fn apply_code_action(
13329 &self,
13330 buffer_handle: Model<Buffer>,
13331 action: CodeAction,
13332 excerpt_id: ExcerptId,
13333 push_to_history: bool,
13334 cx: &mut WindowContext,
13335 ) -> Task<Result<ProjectTransaction>>;
13336}
13337
13338impl CodeActionProvider for Model<Project> {
13339 fn code_actions(
13340 &self,
13341 buffer: &Model<Buffer>,
13342 range: Range<text::Anchor>,
13343 cx: &mut WindowContext,
13344 ) -> Task<Result<Vec<CodeAction>>> {
13345 self.update(cx, |project, cx| {
13346 project.code_actions(buffer, range, None, cx)
13347 })
13348 }
13349
13350 fn apply_code_action(
13351 &self,
13352 buffer_handle: Model<Buffer>,
13353 action: CodeAction,
13354 _excerpt_id: ExcerptId,
13355 push_to_history: bool,
13356 cx: &mut WindowContext,
13357 ) -> Task<Result<ProjectTransaction>> {
13358 self.update(cx, |project, cx| {
13359 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13360 })
13361 }
13362}
13363
13364fn snippet_completions(
13365 project: &Project,
13366 buffer: &Model<Buffer>,
13367 buffer_position: text::Anchor,
13368 cx: &mut AppContext,
13369) -> Task<Result<Vec<Completion>>> {
13370 let language = buffer.read(cx).language_at(buffer_position);
13371 let language_name = language.as_ref().map(|language| language.lsp_id());
13372 let snippet_store = project.snippets().read(cx);
13373 let snippets = snippet_store.snippets_for(language_name, cx);
13374
13375 if snippets.is_empty() {
13376 return Task::ready(Ok(vec![]));
13377 }
13378 let snapshot = buffer.read(cx).text_snapshot();
13379 let chars: String = snapshot
13380 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13381 .collect();
13382
13383 let scope = language.map(|language| language.default_scope());
13384 let executor = cx.background_executor().clone();
13385
13386 cx.background_executor().spawn(async move {
13387 let classifier = CharClassifier::new(scope).for_completion(true);
13388 let mut last_word = chars
13389 .chars()
13390 .take_while(|c| classifier.is_word(*c))
13391 .collect::<String>();
13392 last_word = last_word.chars().rev().collect();
13393
13394 if last_word.is_empty() {
13395 return Ok(vec![]);
13396 }
13397
13398 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13399 let to_lsp = |point: &text::Anchor| {
13400 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13401 point_to_lsp(end)
13402 };
13403 let lsp_end = to_lsp(&buffer_position);
13404
13405 let candidates = snippets
13406 .iter()
13407 .enumerate()
13408 .flat_map(|(ix, snippet)| {
13409 snippet
13410 .prefix
13411 .iter()
13412 .map(move |prefix| StringMatchCandidate::new(ix, &prefix))
13413 })
13414 .collect::<Vec<StringMatchCandidate>>();
13415
13416 let mut matches = fuzzy::match_strings(
13417 &candidates,
13418 &last_word,
13419 last_word.chars().any(|c| c.is_uppercase()),
13420 100,
13421 &Default::default(),
13422 executor,
13423 )
13424 .await;
13425
13426 // Remove all candidates where the query's start does not match the start of any word in the candidate
13427 if let Some(query_start) = last_word.chars().next() {
13428 matches.retain(|string_match| {
13429 split_words(&string_match.string).any(|word| {
13430 // Check that the first codepoint of the word as lowercase matches the first
13431 // codepoint of the query as lowercase
13432 word.chars()
13433 .flat_map(|codepoint| codepoint.to_lowercase())
13434 .zip(query_start.to_lowercase())
13435 .all(|(word_cp, query_cp)| word_cp == query_cp)
13436 })
13437 });
13438 }
13439
13440 let matched_strings = matches
13441 .into_iter()
13442 .map(|m| m.string)
13443 .collect::<HashSet<_>>();
13444
13445 let result: Vec<Completion> = snippets
13446 .into_iter()
13447 .filter_map(|snippet| {
13448 let matching_prefix = snippet
13449 .prefix
13450 .iter()
13451 .find(|prefix| matched_strings.contains(*prefix))?;
13452 let start = as_offset - last_word.len();
13453 let start = snapshot.anchor_before(start);
13454 let range = start..buffer_position;
13455 let lsp_start = to_lsp(&start);
13456 let lsp_range = lsp::Range {
13457 start: lsp_start,
13458 end: lsp_end,
13459 };
13460 Some(Completion {
13461 old_range: range,
13462 new_text: snippet.body.clone(),
13463 label: CodeLabel {
13464 text: matching_prefix.clone(),
13465 runs: vec![],
13466 filter_range: 0..matching_prefix.len(),
13467 },
13468 server_id: LanguageServerId(usize::MAX),
13469 documentation: snippet.description.clone().map(Documentation::SingleLine),
13470 lsp_completion: lsp::CompletionItem {
13471 label: snippet.prefix.first().unwrap().clone(),
13472 kind: Some(CompletionItemKind::SNIPPET),
13473 label_details: snippet.description.as_ref().map(|description| {
13474 lsp::CompletionItemLabelDetails {
13475 detail: Some(description.clone()),
13476 description: None,
13477 }
13478 }),
13479 insert_text_format: Some(InsertTextFormat::SNIPPET),
13480 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13481 lsp::InsertReplaceEdit {
13482 new_text: snippet.body.clone(),
13483 insert: lsp_range,
13484 replace: lsp_range,
13485 },
13486 )),
13487 filter_text: Some(snippet.body.clone()),
13488 sort_text: Some(char::MAX.to_string()),
13489 ..Default::default()
13490 },
13491 confirm: None,
13492 })
13493 })
13494 .collect();
13495
13496 Ok(result)
13497 })
13498}
13499
13500impl CompletionProvider for Model<Project> {
13501 fn completions(
13502 &self,
13503 buffer: &Model<Buffer>,
13504 buffer_position: text::Anchor,
13505 options: CompletionContext,
13506 cx: &mut ViewContext<Editor>,
13507 ) -> Task<Result<Vec<Completion>>> {
13508 self.update(cx, |project, cx| {
13509 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13510 let project_completions = project.completions(buffer, buffer_position, options, cx);
13511 cx.background_executor().spawn(async move {
13512 let mut completions = project_completions.await?;
13513 let snippets_completions = snippets.await?;
13514 completions.extend(snippets_completions);
13515 Ok(completions)
13516 })
13517 })
13518 }
13519
13520 fn resolve_completions(
13521 &self,
13522 buffer: Model<Buffer>,
13523 completion_indices: Vec<usize>,
13524 completions: Rc<RefCell<Box<[Completion]>>>,
13525 cx: &mut ViewContext<Editor>,
13526 ) -> Task<Result<bool>> {
13527 self.update(cx, |project, cx| {
13528 project.resolve_completions(buffer, completion_indices, completions, cx)
13529 })
13530 }
13531
13532 fn apply_additional_edits_for_completion(
13533 &self,
13534 buffer: Model<Buffer>,
13535 completion: Completion,
13536 push_to_history: bool,
13537 cx: &mut ViewContext<Editor>,
13538 ) -> Task<Result<Option<language::Transaction>>> {
13539 self.update(cx, |project, cx| {
13540 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13541 })
13542 }
13543
13544 fn is_completion_trigger(
13545 &self,
13546 buffer: &Model<Buffer>,
13547 position: language::Anchor,
13548 text: &str,
13549 trigger_in_words: bool,
13550 cx: &mut ViewContext<Editor>,
13551 ) -> bool {
13552 let mut chars = text.chars();
13553 let char = if let Some(char) = chars.next() {
13554 char
13555 } else {
13556 return false;
13557 };
13558 if chars.next().is_some() {
13559 return false;
13560 }
13561
13562 let buffer = buffer.read(cx);
13563 let snapshot = buffer.snapshot();
13564 if !snapshot.settings_at(position, cx).show_completions_on_input {
13565 return false;
13566 }
13567 let classifier = snapshot.char_classifier_at(position).for_completion(true);
13568 if trigger_in_words && classifier.is_word(char) {
13569 return true;
13570 }
13571
13572 buffer.completion_triggers().contains(text)
13573 }
13574}
13575
13576impl SemanticsProvider for Model<Project> {
13577 fn hover(
13578 &self,
13579 buffer: &Model<Buffer>,
13580 position: text::Anchor,
13581 cx: &mut AppContext,
13582 ) -> Option<Task<Vec<project::Hover>>> {
13583 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13584 }
13585
13586 fn document_highlights(
13587 &self,
13588 buffer: &Model<Buffer>,
13589 position: text::Anchor,
13590 cx: &mut AppContext,
13591 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13592 Some(self.update(cx, |project, cx| {
13593 project.document_highlights(buffer, position, cx)
13594 }))
13595 }
13596
13597 fn definitions(
13598 &self,
13599 buffer: &Model<Buffer>,
13600 position: text::Anchor,
13601 kind: GotoDefinitionKind,
13602 cx: &mut AppContext,
13603 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13604 Some(self.update(cx, |project, cx| match kind {
13605 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13606 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13607 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13608 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13609 }))
13610 }
13611
13612 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13613 // TODO: make this work for remote projects
13614 self.read(cx)
13615 .language_servers_for_local_buffer(buffer.read(cx), cx)
13616 .any(
13617 |(_, server)| match server.capabilities().inlay_hint_provider {
13618 Some(lsp::OneOf::Left(enabled)) => enabled,
13619 Some(lsp::OneOf::Right(_)) => true,
13620 None => false,
13621 },
13622 )
13623 }
13624
13625 fn inlay_hints(
13626 &self,
13627 buffer_handle: Model<Buffer>,
13628 range: Range<text::Anchor>,
13629 cx: &mut AppContext,
13630 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13631 Some(self.update(cx, |project, cx| {
13632 project.inlay_hints(buffer_handle, range, cx)
13633 }))
13634 }
13635
13636 fn resolve_inlay_hint(
13637 &self,
13638 hint: InlayHint,
13639 buffer_handle: Model<Buffer>,
13640 server_id: LanguageServerId,
13641 cx: &mut AppContext,
13642 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13643 Some(self.update(cx, |project, cx| {
13644 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13645 }))
13646 }
13647
13648 fn range_for_rename(
13649 &self,
13650 buffer: &Model<Buffer>,
13651 position: text::Anchor,
13652 cx: &mut AppContext,
13653 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13654 Some(self.update(cx, |project, cx| {
13655 project.prepare_rename(buffer.clone(), position, cx)
13656 }))
13657 }
13658
13659 fn perform_rename(
13660 &self,
13661 buffer: &Model<Buffer>,
13662 position: text::Anchor,
13663 new_name: String,
13664 cx: &mut AppContext,
13665 ) -> Option<Task<Result<ProjectTransaction>>> {
13666 Some(self.update(cx, |project, cx| {
13667 project.perform_rename(buffer.clone(), position, new_name, cx)
13668 }))
13669 }
13670}
13671
13672fn inlay_hint_settings(
13673 location: Anchor,
13674 snapshot: &MultiBufferSnapshot,
13675 cx: &mut ViewContext<'_, Editor>,
13676) -> InlayHintSettings {
13677 let file = snapshot.file_at(location);
13678 let language = snapshot.language_at(location).map(|l| l.name());
13679 language_settings(language, file, cx).inlay_hints
13680}
13681
13682fn consume_contiguous_rows(
13683 contiguous_row_selections: &mut Vec<Selection<Point>>,
13684 selection: &Selection<Point>,
13685 display_map: &DisplaySnapshot,
13686 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
13687) -> (MultiBufferRow, MultiBufferRow) {
13688 contiguous_row_selections.push(selection.clone());
13689 let start_row = MultiBufferRow(selection.start.row);
13690 let mut end_row = ending_row(selection, display_map);
13691
13692 while let Some(next_selection) = selections.peek() {
13693 if next_selection.start.row <= end_row.0 {
13694 end_row = ending_row(next_selection, display_map);
13695 contiguous_row_selections.push(selections.next().unwrap().clone());
13696 } else {
13697 break;
13698 }
13699 }
13700 (start_row, end_row)
13701}
13702
13703fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13704 if next_selection.end.column > 0 || next_selection.is_empty() {
13705 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13706 } else {
13707 MultiBufferRow(next_selection.end.row)
13708 }
13709}
13710
13711impl EditorSnapshot {
13712 pub fn remote_selections_in_range<'a>(
13713 &'a self,
13714 range: &'a Range<Anchor>,
13715 collaboration_hub: &dyn CollaborationHub,
13716 cx: &'a AppContext,
13717 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13718 let participant_names = collaboration_hub.user_names(cx);
13719 let participant_indices = collaboration_hub.user_participant_indices(cx);
13720 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13721 let collaborators_by_replica_id = collaborators_by_peer_id
13722 .iter()
13723 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13724 .collect::<HashMap<_, _>>();
13725 self.buffer_snapshot
13726 .selections_in_range(range, false)
13727 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13728 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13729 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13730 let user_name = participant_names.get(&collaborator.user_id).cloned();
13731 Some(RemoteSelection {
13732 replica_id,
13733 selection,
13734 cursor_shape,
13735 line_mode,
13736 participant_index,
13737 peer_id: collaborator.peer_id,
13738 user_name,
13739 })
13740 })
13741 }
13742
13743 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13744 self.display_snapshot.buffer_snapshot.language_at(position)
13745 }
13746
13747 pub fn is_focused(&self) -> bool {
13748 self.is_focused
13749 }
13750
13751 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13752 self.placeholder_text.as_ref()
13753 }
13754
13755 pub fn scroll_position(&self) -> gpui::Point<f32> {
13756 self.scroll_anchor.scroll_position(&self.display_snapshot)
13757 }
13758
13759 fn gutter_dimensions(
13760 &self,
13761 font_id: FontId,
13762 font_size: Pixels,
13763 em_width: Pixels,
13764 em_advance: Pixels,
13765 max_line_number_width: Pixels,
13766 cx: &AppContext,
13767 ) -> GutterDimensions {
13768 if !self.show_gutter {
13769 return GutterDimensions::default();
13770 }
13771 let descent = cx.text_system().descent(font_id, font_size);
13772
13773 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13774 matches!(
13775 ProjectSettings::get_global(cx).git.git_gutter,
13776 Some(GitGutterSetting::TrackedFiles)
13777 )
13778 });
13779 let gutter_settings = EditorSettings::get_global(cx).gutter;
13780 let show_line_numbers = self
13781 .show_line_numbers
13782 .unwrap_or(gutter_settings.line_numbers);
13783 let line_gutter_width = if show_line_numbers {
13784 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13785 let min_width_for_number_on_gutter = em_advance * 4.0;
13786 max_line_number_width.max(min_width_for_number_on_gutter)
13787 } else {
13788 0.0.into()
13789 };
13790
13791 let show_code_actions = self
13792 .show_code_actions
13793 .unwrap_or(gutter_settings.code_actions);
13794
13795 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13796
13797 let git_blame_entries_width =
13798 self.git_blame_gutter_max_author_length
13799 .map(|max_author_length| {
13800 // Length of the author name, but also space for the commit hash,
13801 // the spacing and the timestamp.
13802 let max_char_count = max_author_length
13803 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13804 + 7 // length of commit sha
13805 + 14 // length of max relative timestamp ("60 minutes ago")
13806 + 4; // gaps and margins
13807
13808 em_advance * max_char_count
13809 });
13810
13811 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13812 left_padding += if show_code_actions || show_runnables {
13813 em_width * 3.0
13814 } else if show_git_gutter && show_line_numbers {
13815 em_width * 2.0
13816 } else if show_git_gutter || show_line_numbers {
13817 em_width
13818 } else {
13819 px(0.)
13820 };
13821
13822 let right_padding = if gutter_settings.folds && show_line_numbers {
13823 em_width * 4.0
13824 } else if gutter_settings.folds {
13825 em_width * 3.0
13826 } else if show_line_numbers {
13827 em_width
13828 } else {
13829 px(0.)
13830 };
13831
13832 GutterDimensions {
13833 left_padding,
13834 right_padding,
13835 width: line_gutter_width + left_padding + right_padding,
13836 margin: -descent,
13837 git_blame_entries_width,
13838 }
13839 }
13840
13841 pub fn render_crease_toggle(
13842 &self,
13843 buffer_row: MultiBufferRow,
13844 row_contains_cursor: bool,
13845 editor: View<Editor>,
13846 cx: &mut WindowContext,
13847 ) -> Option<AnyElement> {
13848 let folded = self.is_line_folded(buffer_row);
13849 let mut is_foldable = false;
13850
13851 if let Some(crease) = self
13852 .crease_snapshot
13853 .query_row(buffer_row, &self.buffer_snapshot)
13854 {
13855 is_foldable = true;
13856 match crease {
13857 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
13858 if let Some(render_toggle) = render_toggle {
13859 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
13860 if folded {
13861 editor.update(cx, |editor, cx| {
13862 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
13863 });
13864 } else {
13865 editor.update(cx, |editor, cx| {
13866 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
13867 });
13868 }
13869 });
13870 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
13871 }
13872 }
13873 }
13874 }
13875
13876 is_foldable |= self.starts_indent(buffer_row);
13877
13878 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
13879 Some(
13880 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
13881 .toggle_state(folded)
13882 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
13883 if folded {
13884 this.unfold_at(&UnfoldAt { buffer_row }, cx);
13885 } else {
13886 this.fold_at(&FoldAt { buffer_row }, cx);
13887 }
13888 }))
13889 .into_any_element(),
13890 )
13891 } else {
13892 None
13893 }
13894 }
13895
13896 pub fn render_crease_trailer(
13897 &self,
13898 buffer_row: MultiBufferRow,
13899 cx: &mut WindowContext,
13900 ) -> Option<AnyElement> {
13901 let folded = self.is_line_folded(buffer_row);
13902 if let Crease::Inline { render_trailer, .. } = self
13903 .crease_snapshot
13904 .query_row(buffer_row, &self.buffer_snapshot)?
13905 {
13906 let render_trailer = render_trailer.as_ref()?;
13907 Some(render_trailer(buffer_row, folded, cx))
13908 } else {
13909 None
13910 }
13911 }
13912}
13913
13914impl Deref for EditorSnapshot {
13915 type Target = DisplaySnapshot;
13916
13917 fn deref(&self) -> &Self::Target {
13918 &self.display_snapshot
13919 }
13920}
13921
13922#[derive(Clone, Debug, PartialEq, Eq)]
13923pub enum EditorEvent {
13924 InputIgnored {
13925 text: Arc<str>,
13926 },
13927 InputHandled {
13928 utf16_range_to_replace: Option<Range<isize>>,
13929 text: Arc<str>,
13930 },
13931 ExcerptsAdded {
13932 buffer: Model<Buffer>,
13933 predecessor: ExcerptId,
13934 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
13935 },
13936 ExcerptsRemoved {
13937 ids: Vec<ExcerptId>,
13938 },
13939 BufferFoldToggled {
13940 ids: Vec<ExcerptId>,
13941 folded: bool,
13942 },
13943 ExcerptsEdited {
13944 ids: Vec<ExcerptId>,
13945 },
13946 ExcerptsExpanded {
13947 ids: Vec<ExcerptId>,
13948 },
13949 BufferEdited,
13950 Edited {
13951 transaction_id: clock::Lamport,
13952 },
13953 Reparsed(BufferId),
13954 Focused,
13955 FocusedIn,
13956 Blurred,
13957 DirtyChanged,
13958 Saved,
13959 TitleChanged,
13960 DiffBaseChanged,
13961 SelectionsChanged {
13962 local: bool,
13963 },
13964 ScrollPositionChanged {
13965 local: bool,
13966 autoscroll: bool,
13967 },
13968 Closed,
13969 TransactionUndone {
13970 transaction_id: clock::Lamport,
13971 },
13972 TransactionBegun {
13973 transaction_id: clock::Lamport,
13974 },
13975 Reloaded,
13976 CursorShapeChanged,
13977}
13978
13979impl EventEmitter<EditorEvent> for Editor {}
13980
13981impl FocusableView for Editor {
13982 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
13983 self.focus_handle.clone()
13984 }
13985}
13986
13987impl Render for Editor {
13988 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
13989 let settings = ThemeSettings::get_global(cx);
13990
13991 let mut text_style = match self.mode {
13992 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
13993 color: cx.theme().colors().editor_foreground,
13994 font_family: settings.ui_font.family.clone(),
13995 font_features: settings.ui_font.features.clone(),
13996 font_fallbacks: settings.ui_font.fallbacks.clone(),
13997 font_size: rems(0.875).into(),
13998 font_weight: settings.ui_font.weight,
13999 line_height: relative(settings.buffer_line_height.value()),
14000 ..Default::default()
14001 },
14002 EditorMode::Full => TextStyle {
14003 color: cx.theme().colors().editor_foreground,
14004 font_family: settings.buffer_font.family.clone(),
14005 font_features: settings.buffer_font.features.clone(),
14006 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14007 font_size: settings.buffer_font_size(cx).into(),
14008 font_weight: settings.buffer_font.weight,
14009 line_height: relative(settings.buffer_line_height.value()),
14010 ..Default::default()
14011 },
14012 };
14013 if let Some(text_style_refinement) = &self.text_style_refinement {
14014 text_style.refine(text_style_refinement)
14015 }
14016
14017 let background = match self.mode {
14018 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14019 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14020 EditorMode::Full => cx.theme().colors().editor_background,
14021 };
14022
14023 EditorElement::new(
14024 cx.view(),
14025 EditorStyle {
14026 background,
14027 local_player: cx.theme().players().local(),
14028 text: text_style,
14029 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14030 syntax: cx.theme().syntax().clone(),
14031 status: cx.theme().status().clone(),
14032 inlay_hints_style: make_inlay_hints_style(cx),
14033 inline_completion_styles: make_suggestion_styles(cx),
14034 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14035 },
14036 )
14037 }
14038}
14039
14040impl ViewInputHandler for Editor {
14041 fn text_for_range(
14042 &mut self,
14043 range_utf16: Range<usize>,
14044 adjusted_range: &mut Option<Range<usize>>,
14045 cx: &mut ViewContext<Self>,
14046 ) -> Option<String> {
14047 let snapshot = self.buffer.read(cx).read(cx);
14048 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14049 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14050 if (start.0..end.0) != range_utf16 {
14051 adjusted_range.replace(start.0..end.0);
14052 }
14053 Some(snapshot.text_for_range(start..end).collect())
14054 }
14055
14056 fn selected_text_range(
14057 &mut self,
14058 ignore_disabled_input: bool,
14059 cx: &mut ViewContext<Self>,
14060 ) -> Option<UTF16Selection> {
14061 // Prevent the IME menu from appearing when holding down an alphabetic key
14062 // while input is disabled.
14063 if !ignore_disabled_input && !self.input_enabled {
14064 return None;
14065 }
14066
14067 let selection = self.selections.newest::<OffsetUtf16>(cx);
14068 let range = selection.range();
14069
14070 Some(UTF16Selection {
14071 range: range.start.0..range.end.0,
14072 reversed: selection.reversed,
14073 })
14074 }
14075
14076 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14077 let snapshot = self.buffer.read(cx).read(cx);
14078 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14079 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14080 }
14081
14082 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14083 self.clear_highlights::<InputComposition>(cx);
14084 self.ime_transaction.take();
14085 }
14086
14087 fn replace_text_in_range(
14088 &mut self,
14089 range_utf16: Option<Range<usize>>,
14090 text: &str,
14091 cx: &mut ViewContext<Self>,
14092 ) {
14093 if !self.input_enabled {
14094 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14095 return;
14096 }
14097
14098 self.transact(cx, |this, cx| {
14099 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14100 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14101 Some(this.selection_replacement_ranges(range_utf16, cx))
14102 } else {
14103 this.marked_text_ranges(cx)
14104 };
14105
14106 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14107 let newest_selection_id = this.selections.newest_anchor().id;
14108 this.selections
14109 .all::<OffsetUtf16>(cx)
14110 .iter()
14111 .zip(ranges_to_replace.iter())
14112 .find_map(|(selection, range)| {
14113 if selection.id == newest_selection_id {
14114 Some(
14115 (range.start.0 as isize - selection.head().0 as isize)
14116 ..(range.end.0 as isize - selection.head().0 as isize),
14117 )
14118 } else {
14119 None
14120 }
14121 })
14122 });
14123
14124 cx.emit(EditorEvent::InputHandled {
14125 utf16_range_to_replace: range_to_replace,
14126 text: text.into(),
14127 });
14128
14129 if let Some(new_selected_ranges) = new_selected_ranges {
14130 this.change_selections(None, cx, |selections| {
14131 selections.select_ranges(new_selected_ranges)
14132 });
14133 this.backspace(&Default::default(), cx);
14134 }
14135
14136 this.handle_input(text, cx);
14137 });
14138
14139 if let Some(transaction) = self.ime_transaction {
14140 self.buffer.update(cx, |buffer, cx| {
14141 buffer.group_until_transaction(transaction, cx);
14142 });
14143 }
14144
14145 self.unmark_text(cx);
14146 }
14147
14148 fn replace_and_mark_text_in_range(
14149 &mut self,
14150 range_utf16: Option<Range<usize>>,
14151 text: &str,
14152 new_selected_range_utf16: Option<Range<usize>>,
14153 cx: &mut ViewContext<Self>,
14154 ) {
14155 if !self.input_enabled {
14156 return;
14157 }
14158
14159 let transaction = self.transact(cx, |this, cx| {
14160 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14161 let snapshot = this.buffer.read(cx).read(cx);
14162 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14163 for marked_range in &mut marked_ranges {
14164 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14165 marked_range.start.0 += relative_range_utf16.start;
14166 marked_range.start =
14167 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14168 marked_range.end =
14169 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14170 }
14171 }
14172 Some(marked_ranges)
14173 } else if let Some(range_utf16) = range_utf16 {
14174 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14175 Some(this.selection_replacement_ranges(range_utf16, cx))
14176 } else {
14177 None
14178 };
14179
14180 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14181 let newest_selection_id = this.selections.newest_anchor().id;
14182 this.selections
14183 .all::<OffsetUtf16>(cx)
14184 .iter()
14185 .zip(ranges_to_replace.iter())
14186 .find_map(|(selection, range)| {
14187 if selection.id == newest_selection_id {
14188 Some(
14189 (range.start.0 as isize - selection.head().0 as isize)
14190 ..(range.end.0 as isize - selection.head().0 as isize),
14191 )
14192 } else {
14193 None
14194 }
14195 })
14196 });
14197
14198 cx.emit(EditorEvent::InputHandled {
14199 utf16_range_to_replace: range_to_replace,
14200 text: text.into(),
14201 });
14202
14203 if let Some(ranges) = ranges_to_replace {
14204 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14205 }
14206
14207 let marked_ranges = {
14208 let snapshot = this.buffer.read(cx).read(cx);
14209 this.selections
14210 .disjoint_anchors()
14211 .iter()
14212 .map(|selection| {
14213 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14214 })
14215 .collect::<Vec<_>>()
14216 };
14217
14218 if text.is_empty() {
14219 this.unmark_text(cx);
14220 } else {
14221 this.highlight_text::<InputComposition>(
14222 marked_ranges.clone(),
14223 HighlightStyle {
14224 underline: Some(UnderlineStyle {
14225 thickness: px(1.),
14226 color: None,
14227 wavy: false,
14228 }),
14229 ..Default::default()
14230 },
14231 cx,
14232 );
14233 }
14234
14235 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14236 let use_autoclose = this.use_autoclose;
14237 let use_auto_surround = this.use_auto_surround;
14238 this.set_use_autoclose(false);
14239 this.set_use_auto_surround(false);
14240 this.handle_input(text, cx);
14241 this.set_use_autoclose(use_autoclose);
14242 this.set_use_auto_surround(use_auto_surround);
14243
14244 if let Some(new_selected_range) = new_selected_range_utf16 {
14245 let snapshot = this.buffer.read(cx).read(cx);
14246 let new_selected_ranges = marked_ranges
14247 .into_iter()
14248 .map(|marked_range| {
14249 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14250 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14251 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14252 snapshot.clip_offset_utf16(new_start, Bias::Left)
14253 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14254 })
14255 .collect::<Vec<_>>();
14256
14257 drop(snapshot);
14258 this.change_selections(None, cx, |selections| {
14259 selections.select_ranges(new_selected_ranges)
14260 });
14261 }
14262 });
14263
14264 self.ime_transaction = self.ime_transaction.or(transaction);
14265 if let Some(transaction) = self.ime_transaction {
14266 self.buffer.update(cx, |buffer, cx| {
14267 buffer.group_until_transaction(transaction, cx);
14268 });
14269 }
14270
14271 if self.text_highlights::<InputComposition>(cx).is_none() {
14272 self.ime_transaction.take();
14273 }
14274 }
14275
14276 fn bounds_for_range(
14277 &mut self,
14278 range_utf16: Range<usize>,
14279 element_bounds: gpui::Bounds<Pixels>,
14280 cx: &mut ViewContext<Self>,
14281 ) -> Option<gpui::Bounds<Pixels>> {
14282 let text_layout_details = self.text_layout_details(cx);
14283 let gpui::Point {
14284 x: em_width,
14285 y: line_height,
14286 } = self.character_size(cx);
14287
14288 let snapshot = self.snapshot(cx);
14289 let scroll_position = snapshot.scroll_position();
14290 let scroll_left = scroll_position.x * em_width;
14291
14292 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14293 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14294 + self.gutter_dimensions.width
14295 + self.gutter_dimensions.margin;
14296 let y = line_height * (start.row().as_f32() - scroll_position.y);
14297
14298 Some(Bounds {
14299 origin: element_bounds.origin + point(x, y),
14300 size: size(em_width, line_height),
14301 })
14302 }
14303}
14304
14305trait SelectionExt {
14306 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14307 fn spanned_rows(
14308 &self,
14309 include_end_if_at_line_start: bool,
14310 map: &DisplaySnapshot,
14311 ) -> Range<MultiBufferRow>;
14312}
14313
14314impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14315 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14316 let start = self
14317 .start
14318 .to_point(&map.buffer_snapshot)
14319 .to_display_point(map);
14320 let end = self
14321 .end
14322 .to_point(&map.buffer_snapshot)
14323 .to_display_point(map);
14324 if self.reversed {
14325 end..start
14326 } else {
14327 start..end
14328 }
14329 }
14330
14331 fn spanned_rows(
14332 &self,
14333 include_end_if_at_line_start: bool,
14334 map: &DisplaySnapshot,
14335 ) -> Range<MultiBufferRow> {
14336 let start = self.start.to_point(&map.buffer_snapshot);
14337 let mut end = self.end.to_point(&map.buffer_snapshot);
14338 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14339 end.row -= 1;
14340 }
14341
14342 let buffer_start = map.prev_line_boundary(start).0;
14343 let buffer_end = map.next_line_boundary(end).0;
14344 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14345 }
14346}
14347
14348impl<T: InvalidationRegion> InvalidationStack<T> {
14349 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14350 where
14351 S: Clone + ToOffset,
14352 {
14353 while let Some(region) = self.last() {
14354 let all_selections_inside_invalidation_ranges =
14355 if selections.len() == region.ranges().len() {
14356 selections
14357 .iter()
14358 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14359 .all(|(selection, invalidation_range)| {
14360 let head = selection.head().to_offset(buffer);
14361 invalidation_range.start <= head && invalidation_range.end >= head
14362 })
14363 } else {
14364 false
14365 };
14366
14367 if all_selections_inside_invalidation_ranges {
14368 break;
14369 } else {
14370 self.pop();
14371 }
14372 }
14373 }
14374}
14375
14376impl<T> Default for InvalidationStack<T> {
14377 fn default() -> Self {
14378 Self(Default::default())
14379 }
14380}
14381
14382impl<T> Deref for InvalidationStack<T> {
14383 type Target = Vec<T>;
14384
14385 fn deref(&self) -> &Self::Target {
14386 &self.0
14387 }
14388}
14389
14390impl<T> DerefMut for InvalidationStack<T> {
14391 fn deref_mut(&mut self) -> &mut Self::Target {
14392 &mut self.0
14393 }
14394}
14395
14396impl InvalidationRegion for SnippetState {
14397 fn ranges(&self) -> &[Range<Anchor>] {
14398 &self.ranges[self.active_index]
14399 }
14400}
14401
14402pub fn diagnostic_block_renderer(
14403 diagnostic: Diagnostic,
14404 max_message_rows: Option<u8>,
14405 allow_closing: bool,
14406 _is_valid: bool,
14407) -> RenderBlock {
14408 let (text_without_backticks, code_ranges) =
14409 highlight_diagnostic_message(&diagnostic, max_message_rows);
14410
14411 Arc::new(move |cx: &mut BlockContext| {
14412 let group_id: SharedString = cx.block_id.to_string().into();
14413
14414 let mut text_style = cx.text_style().clone();
14415 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14416 let theme_settings = ThemeSettings::get_global(cx);
14417 text_style.font_family = theme_settings.buffer_font.family.clone();
14418 text_style.font_style = theme_settings.buffer_font.style;
14419 text_style.font_features = theme_settings.buffer_font.features.clone();
14420 text_style.font_weight = theme_settings.buffer_font.weight;
14421
14422 let multi_line_diagnostic = diagnostic.message.contains('\n');
14423
14424 let buttons = |diagnostic: &Diagnostic| {
14425 if multi_line_diagnostic {
14426 v_flex()
14427 } else {
14428 h_flex()
14429 }
14430 .when(allow_closing, |div| {
14431 div.children(diagnostic.is_primary.then(|| {
14432 IconButton::new("close-block", IconName::XCircle)
14433 .icon_color(Color::Muted)
14434 .size(ButtonSize::Compact)
14435 .style(ButtonStyle::Transparent)
14436 .visible_on_hover(group_id.clone())
14437 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14438 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14439 }))
14440 })
14441 .child(
14442 IconButton::new("copy-block", IconName::Copy)
14443 .icon_color(Color::Muted)
14444 .size(ButtonSize::Compact)
14445 .style(ButtonStyle::Transparent)
14446 .visible_on_hover(group_id.clone())
14447 .on_click({
14448 let message = diagnostic.message.clone();
14449 move |_click, cx| {
14450 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14451 }
14452 })
14453 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14454 )
14455 };
14456
14457 let icon_size = buttons(&diagnostic)
14458 .into_any_element()
14459 .layout_as_root(AvailableSpace::min_size(), cx);
14460
14461 h_flex()
14462 .id(cx.block_id)
14463 .group(group_id.clone())
14464 .relative()
14465 .size_full()
14466 .block_mouse_down()
14467 .pl(cx.gutter_dimensions.width)
14468 .w(cx.max_width - cx.gutter_dimensions.full_width())
14469 .child(
14470 div()
14471 .flex()
14472 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14473 .flex_shrink(),
14474 )
14475 .child(buttons(&diagnostic))
14476 .child(div().flex().flex_shrink_0().child(
14477 StyledText::new(text_without_backticks.clone()).with_highlights(
14478 &text_style,
14479 code_ranges.iter().map(|range| {
14480 (
14481 range.clone(),
14482 HighlightStyle {
14483 font_weight: Some(FontWeight::BOLD),
14484 ..Default::default()
14485 },
14486 )
14487 }),
14488 ),
14489 ))
14490 .into_any_element()
14491 })
14492}
14493
14494pub fn highlight_diagnostic_message(
14495 diagnostic: &Diagnostic,
14496 mut max_message_rows: Option<u8>,
14497) -> (SharedString, Vec<Range<usize>>) {
14498 let mut text_without_backticks = String::new();
14499 let mut code_ranges = Vec::new();
14500
14501 if let Some(source) = &diagnostic.source {
14502 text_without_backticks.push_str(source);
14503 code_ranges.push(0..source.len());
14504 text_without_backticks.push_str(": ");
14505 }
14506
14507 let mut prev_offset = 0;
14508 let mut in_code_block = false;
14509 let has_row_limit = max_message_rows.is_some();
14510 let mut newline_indices = diagnostic
14511 .message
14512 .match_indices('\n')
14513 .filter(|_| has_row_limit)
14514 .map(|(ix, _)| ix)
14515 .fuse()
14516 .peekable();
14517
14518 for (quote_ix, _) in diagnostic
14519 .message
14520 .match_indices('`')
14521 .chain([(diagnostic.message.len(), "")])
14522 {
14523 let mut first_newline_ix = None;
14524 let mut last_newline_ix = None;
14525 while let Some(newline_ix) = newline_indices.peek() {
14526 if *newline_ix < quote_ix {
14527 if first_newline_ix.is_none() {
14528 first_newline_ix = Some(*newline_ix);
14529 }
14530 last_newline_ix = Some(*newline_ix);
14531
14532 if let Some(rows_left) = &mut max_message_rows {
14533 if *rows_left == 0 {
14534 break;
14535 } else {
14536 *rows_left -= 1;
14537 }
14538 }
14539 let _ = newline_indices.next();
14540 } else {
14541 break;
14542 }
14543 }
14544 let prev_len = text_without_backticks.len();
14545 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14546 text_without_backticks.push_str(new_text);
14547 if in_code_block {
14548 code_ranges.push(prev_len..text_without_backticks.len());
14549 }
14550 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14551 in_code_block = !in_code_block;
14552 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14553 text_without_backticks.push_str("...");
14554 break;
14555 }
14556 }
14557
14558 (text_without_backticks.into(), code_ranges)
14559}
14560
14561fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14562 match severity {
14563 DiagnosticSeverity::ERROR => colors.error,
14564 DiagnosticSeverity::WARNING => colors.warning,
14565 DiagnosticSeverity::INFORMATION => colors.info,
14566 DiagnosticSeverity::HINT => colors.info,
14567 _ => colors.ignored,
14568 }
14569}
14570
14571pub fn styled_runs_for_code_label<'a>(
14572 label: &'a CodeLabel,
14573 syntax_theme: &'a theme::SyntaxTheme,
14574) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14575 let fade_out = HighlightStyle {
14576 fade_out: Some(0.35),
14577 ..Default::default()
14578 };
14579
14580 let mut prev_end = label.filter_range.end;
14581 label
14582 .runs
14583 .iter()
14584 .enumerate()
14585 .flat_map(move |(ix, (range, highlight_id))| {
14586 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14587 style
14588 } else {
14589 return Default::default();
14590 };
14591 let mut muted_style = style;
14592 muted_style.highlight(fade_out);
14593
14594 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14595 if range.start >= label.filter_range.end {
14596 if range.start > prev_end {
14597 runs.push((prev_end..range.start, fade_out));
14598 }
14599 runs.push((range.clone(), muted_style));
14600 } else if range.end <= label.filter_range.end {
14601 runs.push((range.clone(), style));
14602 } else {
14603 runs.push((range.start..label.filter_range.end, style));
14604 runs.push((label.filter_range.end..range.end, muted_style));
14605 }
14606 prev_end = cmp::max(prev_end, range.end);
14607
14608 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14609 runs.push((prev_end..label.text.len(), fade_out));
14610 }
14611
14612 runs
14613 })
14614}
14615
14616pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14617 let mut prev_index = 0;
14618 let mut prev_codepoint: Option<char> = None;
14619 text.char_indices()
14620 .chain([(text.len(), '\0')])
14621 .filter_map(move |(index, codepoint)| {
14622 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14623 let is_boundary = index == text.len()
14624 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14625 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14626 if is_boundary {
14627 let chunk = &text[prev_index..index];
14628 prev_index = index;
14629 Some(chunk)
14630 } else {
14631 None
14632 }
14633 })
14634}
14635
14636pub trait RangeToAnchorExt: Sized {
14637 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14638
14639 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14640 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14641 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14642 }
14643}
14644
14645impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14646 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14647 let start_offset = self.start.to_offset(snapshot);
14648 let end_offset = self.end.to_offset(snapshot);
14649 if start_offset == end_offset {
14650 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14651 } else {
14652 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14653 }
14654 }
14655}
14656
14657pub trait RowExt {
14658 fn as_f32(&self) -> f32;
14659
14660 fn next_row(&self) -> Self;
14661
14662 fn previous_row(&self) -> Self;
14663
14664 fn minus(&self, other: Self) -> u32;
14665}
14666
14667impl RowExt for DisplayRow {
14668 fn as_f32(&self) -> f32 {
14669 self.0 as f32
14670 }
14671
14672 fn next_row(&self) -> Self {
14673 Self(self.0 + 1)
14674 }
14675
14676 fn previous_row(&self) -> Self {
14677 Self(self.0.saturating_sub(1))
14678 }
14679
14680 fn minus(&self, other: Self) -> u32 {
14681 self.0 - other.0
14682 }
14683}
14684
14685impl RowExt for MultiBufferRow {
14686 fn as_f32(&self) -> f32 {
14687 self.0 as f32
14688 }
14689
14690 fn next_row(&self) -> Self {
14691 Self(self.0 + 1)
14692 }
14693
14694 fn previous_row(&self) -> Self {
14695 Self(self.0.saturating_sub(1))
14696 }
14697
14698 fn minus(&self, other: Self) -> u32 {
14699 self.0 - other.0
14700 }
14701}
14702
14703trait RowRangeExt {
14704 type Row;
14705
14706 fn len(&self) -> usize;
14707
14708 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14709}
14710
14711impl RowRangeExt for Range<MultiBufferRow> {
14712 type Row = MultiBufferRow;
14713
14714 fn len(&self) -> usize {
14715 (self.end.0 - self.start.0) as usize
14716 }
14717
14718 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14719 (self.start.0..self.end.0).map(MultiBufferRow)
14720 }
14721}
14722
14723impl RowRangeExt for Range<DisplayRow> {
14724 type Row = DisplayRow;
14725
14726 fn len(&self) -> usize {
14727 (self.end.0 - self.start.0) as usize
14728 }
14729
14730 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14731 (self.start.0..self.end.0).map(DisplayRow)
14732 }
14733}
14734
14735fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14736 if hunk.diff_base_byte_range.is_empty() {
14737 DiffHunkStatus::Added
14738 } else if hunk.row_range.is_empty() {
14739 DiffHunkStatus::Removed
14740 } else {
14741 DiffHunkStatus::Modified
14742 }
14743}
14744
14745/// If select range has more than one line, we
14746/// just point the cursor to range.start.
14747fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14748 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14749 range
14750 } else {
14751 range.start..range.start
14752 }
14753}
14754
14755pub struct KillRing(ClipboardItem);
14756impl Global for KillRing {}
14757
14758const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);