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 debounced_delay;
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;
31mod inline_completion_provider;
32pub mod items;
33mod linked_editing_ranges;
34mod lsp_ext;
35mod mouse_context_menu;
36pub mod movement;
37mod persistence;
38mod proposed_changes_editor;
39mod rust_analyzer_ext;
40pub mod scroll;
41mod selections_collection;
42pub mod tasks;
43
44#[cfg(test)]
45mod editor_tests;
46mod signature_help;
47#[cfg(any(test, feature = "test-support"))]
48pub mod test;
49
50use ::git::diff::DiffHunkStatus;
51pub(crate) use actions::*;
52use aho_corasick::AhoCorasick;
53use anyhow::{anyhow, Context as _, Result};
54use blink_manager::BlinkManager;
55use client::{Collaborator, ParticipantIndex};
56use clock::ReplicaId;
57use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
58use convert_case::{Case, Casing};
59use debounced_delay::DebouncedDelay;
60use display_map::*;
61pub use display_map::{DisplayPoint, FoldPlaceholder};
62pub use editor_settings::{
63 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
64};
65pub use editor_settings_controls::*;
66use element::LineWithInvisibles;
67pub use element::{
68 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
69};
70use futures::{future, FutureExt};
71use fuzzy::{StringMatch, StringMatchCandidate};
72use git::blame::GitBlame;
73use gpui::{
74 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
75 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardEntry,
76 ClipboardItem, Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent,
77 FocusableView, FontId, FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext,
78 ListSizingBehavior, Model, ModelContext, MouseButton, PaintQuad, ParentElement, Pixels, Render,
79 ScrollStrategy, SharedString, Size, StrikethroughStyle, Styled, StyledText, Subscription, Task,
80 TextStyle, TextStyleRefinement, UTF16Selection, UnderlineStyle, UniformListScrollHandle, View,
81 ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle, WeakView, WindowContext,
82};
83use highlight_matching_bracket::refresh_matching_bracket_highlights;
84use hover_popover::{hide_hover, HoverState};
85pub(crate) use hunk_diff::HoveredHunk;
86use hunk_diff::{diff_hunk_to_display, ExpandedHunks};
87use indent_guides::ActiveIndentGuidesState;
88use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
89pub use inline_completion_provider::*;
90pub use items::MAX_TAB_TITLE_LEN;
91use itertools::Itertools;
92use language::{
93 language_settings::{self, all_language_settings, language_settings, InlayHintSettings},
94 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
95 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
96 Point, Selection, SelectionGoal, TransactionId,
97};
98use language::{
99 point_to_lsp, BufferRow, CharClassifier, LanguageServerName, Runnable, RunnableRange,
100};
101use linked_editing_ranges::refresh_linked_ranges;
102pub use proposed_changes_editor::{
103 ProposedChangeLocation, ProposedChangesEditor, ProposedChangesEditorToolbar,
104};
105use similar::{ChangeTag, TextDiff};
106use std::iter::Peekable;
107use task::{ResolvedTask, TaskTemplate, TaskVariables};
108
109use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
110pub use lsp::CompletionContext;
111use lsp::{
112 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
113 LanguageServerId,
114};
115use mouse_context_menu::MouseContextMenu;
116use movement::TextLayoutDetails;
117pub use multi_buffer::{
118 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
119 ToPoint,
120};
121use multi_buffer::{
122 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
123};
124use ordered_float::OrderedFloat;
125use parking_lot::{Mutex, RwLock};
126use project::{
127 lsp_store::{FormatTarget, FormatTrigger},
128 project_settings::{GitGutterSetting, ProjectSettings},
129 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Item, Location,
130 LocationLink, Project, ProjectPath, ProjectTransaction, TaskSourceKind,
131};
132use rand::prelude::*;
133use rpc::{proto::*, ErrorExt};
134use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
135use selections_collection::{
136 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
137};
138use serde::{Deserialize, Serialize};
139use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
140use smallvec::SmallVec;
141use snippet::Snippet;
142use std::{
143 any::TypeId,
144 borrow::Cow,
145 cell::RefCell,
146 cmp::{self, Ordering, Reverse},
147 mem,
148 num::NonZeroU32,
149 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
150 path::{Path, PathBuf},
151 rc::Rc,
152 sync::Arc,
153 time::{Duration, Instant},
154};
155pub use sum_tree::Bias;
156use sum_tree::TreeMap;
157use text::{BufferId, OffsetUtf16, Rope};
158use theme::{
159 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
160 ThemeColors, ThemeSettings,
161};
162use ui::{
163 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
164 ListItem, Popover, PopoverMenuHandle, Tooltip,
165};
166use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
167use workspace::item::{ItemHandle, PreviewTabsSettings};
168use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
169use workspace::{
170 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
171};
172use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
173
174use crate::hover_links::find_url;
175use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
176
177pub const FILE_HEADER_HEIGHT: u32 = 2;
178pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
179pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
180pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
181const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
182const MAX_LINE_LEN: usize = 1024;
183const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
184const MAX_SELECTION_HISTORY_LEN: usize = 1024;
185pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
186#[doc(hidden)]
187pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
188#[doc(hidden)]
189pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
190
191pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
192pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
193
194pub fn render_parsed_markdown(
195 element_id: impl Into<ElementId>,
196 parsed: &language::ParsedMarkdown,
197 editor_style: &EditorStyle,
198 workspace: Option<WeakView<Workspace>>,
199 cx: &mut WindowContext,
200) -> InteractiveText {
201 let code_span_background_color = cx
202 .theme()
203 .colors()
204 .editor_document_highlight_read_background;
205
206 let highlights = gpui::combine_highlights(
207 parsed.highlights.iter().filter_map(|(range, highlight)| {
208 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
209 Some((range.clone(), highlight))
210 }),
211 parsed
212 .regions
213 .iter()
214 .zip(&parsed.region_ranges)
215 .filter_map(|(region, range)| {
216 if region.code {
217 Some((
218 range.clone(),
219 HighlightStyle {
220 background_color: Some(code_span_background_color),
221 ..Default::default()
222 },
223 ))
224 } else {
225 None
226 }
227 }),
228 );
229
230 let mut links = Vec::new();
231 let mut link_ranges = Vec::new();
232 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
233 if let Some(link) = region.link.clone() {
234 links.push(link);
235 link_ranges.push(range.clone());
236 }
237 }
238
239 InteractiveText::new(
240 element_id,
241 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
242 )
243 .on_click(link_ranges, move |clicked_range_ix, cx| {
244 match &links[clicked_range_ix] {
245 markdown::Link::Web { url } => cx.open_url(url),
246 markdown::Link::Path { path } => {
247 if let Some(workspace) = &workspace {
248 _ = workspace.update(cx, |workspace, cx| {
249 workspace.open_abs_path(path.clone(), false, cx).detach();
250 });
251 }
252 }
253 }
254 })
255}
256
257#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
258pub(crate) enum InlayId {
259 Suggestion(usize),
260 Hint(usize),
261}
262
263impl InlayId {
264 fn id(&self) -> usize {
265 match self {
266 Self::Suggestion(id) => *id,
267 Self::Hint(id) => *id,
268 }
269 }
270}
271
272enum DiffRowHighlight {}
273enum DocumentHighlightRead {}
274enum DocumentHighlightWrite {}
275enum InputComposition {}
276
277#[derive(Copy, Clone, PartialEq, Eq)]
278pub enum Direction {
279 Prev,
280 Next,
281}
282
283#[derive(Debug, Copy, Clone, PartialEq, Eq)]
284pub enum Navigated {
285 Yes,
286 No,
287}
288
289impl Navigated {
290 pub fn from_bool(yes: bool) -> Navigated {
291 if yes {
292 Navigated::Yes
293 } else {
294 Navigated::No
295 }
296 }
297}
298
299pub fn init_settings(cx: &mut AppContext) {
300 EditorSettings::register(cx);
301}
302
303pub fn init(cx: &mut AppContext) {
304 init_settings(cx);
305
306 workspace::register_project_item::<Editor>(cx);
307 workspace::FollowableViewRegistry::register::<Editor>(cx);
308 workspace::register_serializable_item::<Editor>(cx);
309
310 cx.observe_new_views(
311 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
312 workspace.register_action(Editor::new_file);
313 workspace.register_action(Editor::new_file_vertical);
314 workspace.register_action(Editor::new_file_horizontal);
315 },
316 )
317 .detach();
318
319 cx.on_action(move |_: &workspace::NewFile, cx| {
320 let app_state = workspace::AppState::global(cx);
321 if let Some(app_state) = app_state.upgrade() {
322 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
323 Editor::new_file(workspace, &Default::default(), cx)
324 })
325 .detach();
326 }
327 });
328 cx.on_action(move |_: &workspace::NewWindow, cx| {
329 let app_state = workspace::AppState::global(cx);
330 if let Some(app_state) = app_state.upgrade() {
331 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
332 Editor::new_file(workspace, &Default::default(), cx)
333 })
334 .detach();
335 }
336 });
337}
338
339pub struct SearchWithinRange;
340
341trait InvalidationRegion {
342 fn ranges(&self) -> &[Range<Anchor>];
343}
344
345#[derive(Clone, Debug, PartialEq)]
346pub enum SelectPhase {
347 Begin {
348 position: DisplayPoint,
349 add: bool,
350 click_count: usize,
351 },
352 BeginColumnar {
353 position: DisplayPoint,
354 reset: bool,
355 goal_column: u32,
356 },
357 Extend {
358 position: DisplayPoint,
359 click_count: usize,
360 },
361 Update {
362 position: DisplayPoint,
363 goal_column: u32,
364 scroll_delta: gpui::Point<f32>,
365 },
366 End,
367}
368
369#[derive(Clone, Debug)]
370pub enum SelectMode {
371 Character,
372 Word(Range<Anchor>),
373 Line(Range<Anchor>),
374 All,
375}
376
377#[derive(Copy, Clone, PartialEq, Eq, Debug)]
378pub enum EditorMode {
379 SingleLine { auto_width: bool },
380 AutoHeight { max_lines: usize },
381 Full,
382}
383
384#[derive(Copy, Clone, Debug)]
385pub enum SoftWrap {
386 /// Prefer not to wrap at all.
387 ///
388 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
389 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
390 GitDiff,
391 /// Prefer a single line generally, unless an overly long line is encountered.
392 None,
393 /// Soft wrap lines that exceed the editor width.
394 EditorWidth,
395 /// Soft wrap lines at the preferred line length.
396 Column(u32),
397 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
398 Bounded(u32),
399}
400
401#[derive(Clone)]
402pub struct EditorStyle {
403 pub background: Hsla,
404 pub local_player: PlayerColor,
405 pub text: TextStyle,
406 pub scrollbar_width: Pixels,
407 pub syntax: Arc<SyntaxTheme>,
408 pub status: StatusColors,
409 pub inlay_hints_style: HighlightStyle,
410 pub suggestions_style: HighlightStyle,
411 pub unnecessary_code_fade: f32,
412}
413
414impl Default for EditorStyle {
415 fn default() -> Self {
416 Self {
417 background: Hsla::default(),
418 local_player: PlayerColor::default(),
419 text: TextStyle::default(),
420 scrollbar_width: Pixels::default(),
421 syntax: Default::default(),
422 // HACK: Status colors don't have a real default.
423 // We should look into removing the status colors from the editor
424 // style and retrieve them directly from the theme.
425 status: StatusColors::dark(),
426 inlay_hints_style: HighlightStyle::default(),
427 suggestions_style: HighlightStyle::default(),
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
445type CompletionId = usize;
446
447#[derive(Clone, Debug)]
448struct CompletionState {
449 // render_inlay_ids represents the inlay hints that are inserted
450 // for rendering the inline completions. They may be discontinuous
451 // in the event that the completion provider returns some intersection
452 // with the existing content.
453 render_inlay_ids: Vec<InlayId>,
454 // text is the resulting rope that is inserted when the user accepts a completion.
455 text: Rope,
456 // position is the position of the cursor when the completion was triggered.
457 position: multi_buffer::Anchor,
458 // delete_range is the range of text that this completion state covers.
459 // if the completion is accepted, this range should be deleted.
460 delete_range: Option<Range<multi_buffer::Anchor>>,
461}
462
463#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
464struct EditorActionId(usize);
465
466impl EditorActionId {
467 pub fn post_inc(&mut self) -> Self {
468 let answer = self.0;
469
470 *self = Self(answer + 1);
471
472 Self(answer)
473 }
474}
475
476// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
477// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
478
479type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
480type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
481
482#[derive(Default)]
483struct ScrollbarMarkerState {
484 scrollbar_size: Size<Pixels>,
485 dirty: bool,
486 markers: Arc<[PaintQuad]>,
487 pending_refresh: Option<Task<Result<()>>>,
488}
489
490impl ScrollbarMarkerState {
491 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
492 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
493 }
494}
495
496#[derive(Clone, Debug)]
497struct RunnableTasks {
498 templates: Vec<(TaskSourceKind, TaskTemplate)>,
499 offset: MultiBufferOffset,
500 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
501 column: u32,
502 // Values of all named captures, including those starting with '_'
503 extra_variables: HashMap<String, String>,
504 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
505 context_range: Range<BufferOffset>,
506}
507
508impl RunnableTasks {
509 fn resolve<'a>(
510 &'a self,
511 cx: &'a task::TaskContext,
512 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
513 self.templates.iter().filter_map(|(kind, template)| {
514 template
515 .resolve_task(&kind.to_id_base(), cx)
516 .map(|task| (kind.clone(), task))
517 })
518 }
519}
520
521#[derive(Clone)]
522struct ResolvedTasks {
523 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
524 position: Anchor,
525}
526#[derive(Copy, Clone, Debug)]
527struct MultiBufferOffset(usize);
528#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
529struct BufferOffset(usize);
530
531// Addons allow storing per-editor state in other crates (e.g. Vim)
532pub trait Addon: 'static {
533 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
534
535 fn to_any(&self) -> &dyn std::any::Any;
536}
537
538/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
539///
540/// See the [module level documentation](self) for more information.
541pub struct Editor {
542 focus_handle: FocusHandle,
543 last_focused_descendant: Option<WeakFocusHandle>,
544 /// The text buffer being edited
545 buffer: Model<MultiBuffer>,
546 /// Map of how text in the buffer should be displayed.
547 /// Handles soft wraps, folds, fake inlay text insertions, etc.
548 pub display_map: Model<DisplayMap>,
549 pub selections: SelectionsCollection,
550 pub scroll_manager: ScrollManager,
551 /// When inline assist editors are linked, they all render cursors because
552 /// typing enters text into each of them, even the ones that aren't focused.
553 pub(crate) show_cursor_when_unfocused: bool,
554 columnar_selection_tail: Option<Anchor>,
555 add_selections_state: Option<AddSelectionsState>,
556 select_next_state: Option<SelectNextState>,
557 select_prev_state: Option<SelectNextState>,
558 selection_history: SelectionHistory,
559 autoclose_regions: Vec<AutocloseRegion>,
560 snippet_stack: InvalidationStack<SnippetState>,
561 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
562 ime_transaction: Option<TransactionId>,
563 active_diagnostics: Option<ActiveDiagnosticGroup>,
564 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
565
566 project: Option<Model<Project>>,
567 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
568 completion_provider: Option<Box<dyn CompletionProvider>>,
569 collaboration_hub: Option<Box<dyn CollaborationHub>>,
570 blink_manager: Model<BlinkManager>,
571 show_cursor_names: bool,
572 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
573 pub show_local_selections: bool,
574 mode: EditorMode,
575 show_breadcrumbs: bool,
576 show_gutter: bool,
577 show_line_numbers: Option<bool>,
578 use_relative_line_numbers: Option<bool>,
579 show_git_diff_gutter: Option<bool>,
580 show_code_actions: Option<bool>,
581 show_runnables: Option<bool>,
582 show_wrap_guides: Option<bool>,
583 show_indent_guides: Option<bool>,
584 placeholder_text: Option<Arc<str>>,
585 highlight_order: usize,
586 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
587 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
588 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
589 scrollbar_marker_state: ScrollbarMarkerState,
590 active_indent_guides_state: ActiveIndentGuidesState,
591 nav_history: Option<ItemNavHistory>,
592 context_menu: RwLock<Option<ContextMenu>>,
593 mouse_context_menu: Option<MouseContextMenu>,
594 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
595 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
596 signature_help_state: SignatureHelpState,
597 auto_signature_help: Option<bool>,
598 find_all_references_task_sources: Vec<Anchor>,
599 next_completion_id: CompletionId,
600 completion_documentation_pre_resolve_debounce: DebouncedDelay,
601 available_code_actions: Option<(Location, Arc<[AvailableCodeAction]>)>,
602 code_actions_task: Option<Task<Result<()>>>,
603 document_highlights_task: Option<Task<()>>,
604 linked_editing_range_task: Option<Task<Option<()>>>,
605 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
606 pending_rename: Option<RenameState>,
607 searchable: bool,
608 cursor_shape: CursorShape,
609 current_line_highlight: Option<CurrentLineHighlight>,
610 collapse_matches: bool,
611 autoindent_mode: Option<AutoindentMode>,
612 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
613 input_enabled: bool,
614 use_modal_editing: bool,
615 read_only: bool,
616 leader_peer_id: Option<PeerId>,
617 remote_id: Option<ViewId>,
618 hover_state: HoverState,
619 gutter_hovered: bool,
620 hovered_link_state: Option<HoveredLinkState>,
621 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
622 code_action_providers: Vec<Arc<dyn CodeActionProvider>>,
623 active_inline_completion: Option<CompletionState>,
624 // enable_inline_completions is a switch that Vim can use to disable
625 // inline completions based on its mode.
626 enable_inline_completions: bool,
627 show_inline_completions_override: Option<bool>,
628 inlay_hint_cache: InlayHintCache,
629 expanded_hunks: ExpandedHunks,
630 next_inlay_id: usize,
631 _subscriptions: Vec<Subscription>,
632 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
633 gutter_dimensions: GutterDimensions,
634 style: Option<EditorStyle>,
635 text_style_refinement: Option<TextStyleRefinement>,
636 next_editor_action_id: EditorActionId,
637 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
638 use_autoclose: bool,
639 use_auto_surround: bool,
640 auto_replace_emoji_shortcode: bool,
641 show_git_blame_gutter: bool,
642 show_git_blame_inline: bool,
643 show_git_blame_inline_delay_task: Option<Task<()>>,
644 git_blame_inline_enabled: bool,
645 serialize_dirty_buffers: bool,
646 show_selection_menu: Option<bool>,
647 blame: Option<Model<GitBlame>>,
648 blame_subscription: Option<Subscription>,
649 custom_context_menu: Option<
650 Box<
651 dyn 'static
652 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
653 >,
654 >,
655 last_bounds: Option<Bounds<Pixels>>,
656 expect_bounds_change: Option<Bounds<Pixels>>,
657 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
658 tasks_update_task: Option<Task<()>>,
659 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
660 breadcrumb_header: Option<String>,
661 focused_block: Option<FocusedBlock>,
662 next_scroll_position: NextScrollCursorCenterTopBottom,
663 addons: HashMap<TypeId, Box<dyn Addon>>,
664 _scroll_cursor_center_top_bottom_task: Task<()>,
665}
666
667#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
668enum NextScrollCursorCenterTopBottom {
669 #[default]
670 Center,
671 Top,
672 Bottom,
673}
674
675impl NextScrollCursorCenterTopBottom {
676 fn next(&self) -> Self {
677 match self {
678 Self::Center => Self::Top,
679 Self::Top => Self::Bottom,
680 Self::Bottom => Self::Center,
681 }
682 }
683}
684
685#[derive(Clone)]
686pub struct EditorSnapshot {
687 pub mode: EditorMode,
688 show_gutter: bool,
689 show_line_numbers: Option<bool>,
690 show_git_diff_gutter: Option<bool>,
691 show_code_actions: Option<bool>,
692 show_runnables: Option<bool>,
693 git_blame_gutter_max_author_length: Option<usize>,
694 pub display_snapshot: DisplaySnapshot,
695 pub placeholder_text: Option<Arc<str>>,
696 is_focused: bool,
697 scroll_anchor: ScrollAnchor,
698 ongoing_scroll: OngoingScroll,
699 current_line_highlight: CurrentLineHighlight,
700 gutter_hovered: bool,
701}
702
703const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
704
705#[derive(Default, Debug, Clone, Copy)]
706pub struct GutterDimensions {
707 pub left_padding: Pixels,
708 pub right_padding: Pixels,
709 pub width: Pixels,
710 pub margin: Pixels,
711 pub git_blame_entries_width: Option<Pixels>,
712}
713
714impl GutterDimensions {
715 /// The full width of the space taken up by the gutter.
716 pub fn full_width(&self) -> Pixels {
717 self.margin + self.width
718 }
719
720 /// The width of the space reserved for the fold indicators,
721 /// use alongside 'justify_end' and `gutter_width` to
722 /// right align content with the line numbers
723 pub fn fold_area_width(&self) -> Pixels {
724 self.margin + self.right_padding
725 }
726}
727
728#[derive(Debug)]
729pub struct RemoteSelection {
730 pub replica_id: ReplicaId,
731 pub selection: Selection<Anchor>,
732 pub cursor_shape: CursorShape,
733 pub peer_id: PeerId,
734 pub line_mode: bool,
735 pub participant_index: Option<ParticipantIndex>,
736 pub user_name: Option<SharedString>,
737}
738
739#[derive(Clone, Debug)]
740struct SelectionHistoryEntry {
741 selections: Arc<[Selection<Anchor>]>,
742 select_next_state: Option<SelectNextState>,
743 select_prev_state: Option<SelectNextState>,
744 add_selections_state: Option<AddSelectionsState>,
745}
746
747enum SelectionHistoryMode {
748 Normal,
749 Undoing,
750 Redoing,
751}
752
753#[derive(Clone, PartialEq, Eq, Hash)]
754struct HoveredCursor {
755 replica_id: u16,
756 selection_id: usize,
757}
758
759impl Default for SelectionHistoryMode {
760 fn default() -> Self {
761 Self::Normal
762 }
763}
764
765#[derive(Default)]
766struct SelectionHistory {
767 #[allow(clippy::type_complexity)]
768 selections_by_transaction:
769 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
770 mode: SelectionHistoryMode,
771 undo_stack: VecDeque<SelectionHistoryEntry>,
772 redo_stack: VecDeque<SelectionHistoryEntry>,
773}
774
775impl SelectionHistory {
776 fn insert_transaction(
777 &mut self,
778 transaction_id: TransactionId,
779 selections: Arc<[Selection<Anchor>]>,
780 ) {
781 self.selections_by_transaction
782 .insert(transaction_id, (selections, None));
783 }
784
785 #[allow(clippy::type_complexity)]
786 fn transaction(
787 &self,
788 transaction_id: TransactionId,
789 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
790 self.selections_by_transaction.get(&transaction_id)
791 }
792
793 #[allow(clippy::type_complexity)]
794 fn transaction_mut(
795 &mut self,
796 transaction_id: TransactionId,
797 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
798 self.selections_by_transaction.get_mut(&transaction_id)
799 }
800
801 fn push(&mut self, entry: SelectionHistoryEntry) {
802 if !entry.selections.is_empty() {
803 match self.mode {
804 SelectionHistoryMode::Normal => {
805 self.push_undo(entry);
806 self.redo_stack.clear();
807 }
808 SelectionHistoryMode::Undoing => self.push_redo(entry),
809 SelectionHistoryMode::Redoing => self.push_undo(entry),
810 }
811 }
812 }
813
814 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
815 if self
816 .undo_stack
817 .back()
818 .map_or(true, |e| e.selections != entry.selections)
819 {
820 self.undo_stack.push_back(entry);
821 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
822 self.undo_stack.pop_front();
823 }
824 }
825 }
826
827 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
828 if self
829 .redo_stack
830 .back()
831 .map_or(true, |e| e.selections != entry.selections)
832 {
833 self.redo_stack.push_back(entry);
834 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
835 self.redo_stack.pop_front();
836 }
837 }
838 }
839}
840
841struct RowHighlight {
842 index: usize,
843 range: Range<Anchor>,
844 color: Hsla,
845 should_autoscroll: bool,
846}
847
848#[derive(Clone, Debug)]
849struct AddSelectionsState {
850 above: bool,
851 stack: Vec<usize>,
852}
853
854#[derive(Clone)]
855struct SelectNextState {
856 query: AhoCorasick,
857 wordwise: bool,
858 done: bool,
859}
860
861impl std::fmt::Debug for SelectNextState {
862 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
863 f.debug_struct(std::any::type_name::<Self>())
864 .field("wordwise", &self.wordwise)
865 .field("done", &self.done)
866 .finish()
867 }
868}
869
870#[derive(Debug)]
871struct AutocloseRegion {
872 selection_id: usize,
873 range: Range<Anchor>,
874 pair: BracketPair,
875}
876
877#[derive(Debug)]
878struct SnippetState {
879 ranges: Vec<Vec<Range<Anchor>>>,
880 active_index: usize,
881}
882
883#[doc(hidden)]
884pub struct RenameState {
885 pub range: Range<Anchor>,
886 pub old_name: Arc<str>,
887 pub editor: View<Editor>,
888 block_id: CustomBlockId,
889}
890
891struct InvalidationStack<T>(Vec<T>);
892
893struct RegisteredInlineCompletionProvider {
894 provider: Arc<dyn InlineCompletionProviderHandle>,
895 _subscription: Subscription,
896}
897
898enum ContextMenu {
899 Completions(CompletionsMenu),
900 CodeActions(CodeActionsMenu),
901}
902
903impl ContextMenu {
904 fn select_first(
905 &mut self,
906 provider: Option<&dyn CompletionProvider>,
907 cx: &mut ViewContext<Editor>,
908 ) -> bool {
909 if self.visible() {
910 match self {
911 ContextMenu::Completions(menu) => menu.select_first(provider, cx),
912 ContextMenu::CodeActions(menu) => menu.select_first(cx),
913 }
914 true
915 } else {
916 false
917 }
918 }
919
920 fn select_prev(
921 &mut self,
922 provider: Option<&dyn CompletionProvider>,
923 cx: &mut ViewContext<Editor>,
924 ) -> bool {
925 if self.visible() {
926 match self {
927 ContextMenu::Completions(menu) => menu.select_prev(provider, cx),
928 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
929 }
930 true
931 } else {
932 false
933 }
934 }
935
936 fn select_next(
937 &mut self,
938 provider: Option<&dyn CompletionProvider>,
939 cx: &mut ViewContext<Editor>,
940 ) -> bool {
941 if self.visible() {
942 match self {
943 ContextMenu::Completions(menu) => menu.select_next(provider, cx),
944 ContextMenu::CodeActions(menu) => menu.select_next(cx),
945 }
946 true
947 } else {
948 false
949 }
950 }
951
952 fn select_last(
953 &mut self,
954 provider: Option<&dyn CompletionProvider>,
955 cx: &mut ViewContext<Editor>,
956 ) -> bool {
957 if self.visible() {
958 match self {
959 ContextMenu::Completions(menu) => menu.select_last(provider, cx),
960 ContextMenu::CodeActions(menu) => menu.select_last(cx),
961 }
962 true
963 } else {
964 false
965 }
966 }
967
968 fn visible(&self) -> bool {
969 match self {
970 ContextMenu::Completions(menu) => menu.visible(),
971 ContextMenu::CodeActions(menu) => menu.visible(),
972 }
973 }
974
975 fn render(
976 &self,
977 cursor_position: DisplayPoint,
978 style: &EditorStyle,
979 max_height: Pixels,
980 workspace: Option<WeakView<Workspace>>,
981 cx: &mut ViewContext<Editor>,
982 ) -> (ContextMenuOrigin, AnyElement) {
983 match self {
984 ContextMenu::Completions(menu) => (
985 ContextMenuOrigin::EditorPoint(cursor_position),
986 menu.render(style, max_height, workspace, cx),
987 ),
988 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
989 }
990 }
991}
992
993enum ContextMenuOrigin {
994 EditorPoint(DisplayPoint),
995 GutterIndicator(DisplayRow),
996}
997
998#[derive(Clone)]
999struct CompletionsMenu {
1000 id: CompletionId,
1001 sort_completions: bool,
1002 initial_position: Anchor,
1003 buffer: Model<Buffer>,
1004 completions: Arc<RwLock<Box<[Completion]>>>,
1005 match_candidates: Arc<[StringMatchCandidate]>,
1006 matches: Arc<[StringMatch]>,
1007 selected_item: usize,
1008 scroll_handle: UniformListScrollHandle,
1009 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
1010}
1011
1012impl CompletionsMenu {
1013 fn select_first(
1014 &mut self,
1015 provider: Option<&dyn CompletionProvider>,
1016 cx: &mut ViewContext<Editor>,
1017 ) {
1018 self.selected_item = 0;
1019 self.scroll_handle
1020 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1021 self.attempt_resolve_selected_completion_documentation(provider, cx);
1022 cx.notify();
1023 }
1024
1025 fn select_prev(
1026 &mut self,
1027 provider: Option<&dyn CompletionProvider>,
1028 cx: &mut ViewContext<Editor>,
1029 ) {
1030 if self.selected_item > 0 {
1031 self.selected_item -= 1;
1032 } else {
1033 self.selected_item = self.matches.len() - 1;
1034 }
1035 self.scroll_handle
1036 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1037 self.attempt_resolve_selected_completion_documentation(provider, cx);
1038 cx.notify();
1039 }
1040
1041 fn select_next(
1042 &mut self,
1043 provider: Option<&dyn CompletionProvider>,
1044 cx: &mut ViewContext<Editor>,
1045 ) {
1046 if self.selected_item + 1 < self.matches.len() {
1047 self.selected_item += 1;
1048 } else {
1049 self.selected_item = 0;
1050 }
1051 self.scroll_handle
1052 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1053 self.attempt_resolve_selected_completion_documentation(provider, cx);
1054 cx.notify();
1055 }
1056
1057 fn select_last(
1058 &mut self,
1059 provider: Option<&dyn CompletionProvider>,
1060 cx: &mut ViewContext<Editor>,
1061 ) {
1062 self.selected_item = self.matches.len() - 1;
1063 self.scroll_handle
1064 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1065 self.attempt_resolve_selected_completion_documentation(provider, cx);
1066 cx.notify();
1067 }
1068
1069 fn pre_resolve_completion_documentation(
1070 buffer: Model<Buffer>,
1071 completions: Arc<RwLock<Box<[Completion]>>>,
1072 matches: Arc<[StringMatch]>,
1073 editor: &Editor,
1074 cx: &mut ViewContext<Editor>,
1075 ) -> Task<()> {
1076 let settings = EditorSettings::get_global(cx);
1077 if !settings.show_completion_documentation {
1078 return Task::ready(());
1079 }
1080
1081 let Some(provider) = editor.completion_provider.as_ref() else {
1082 return Task::ready(());
1083 };
1084
1085 let resolve_task = provider.resolve_completions(
1086 buffer,
1087 matches.iter().map(|m| m.candidate_id).collect(),
1088 completions.clone(),
1089 cx,
1090 );
1091
1092 cx.spawn(move |this, mut cx| async move {
1093 if let Some(true) = resolve_task.await.log_err() {
1094 this.update(&mut cx, |_, cx| cx.notify()).ok();
1095 }
1096 })
1097 }
1098
1099 fn attempt_resolve_selected_completion_documentation(
1100 &mut self,
1101 provider: Option<&dyn CompletionProvider>,
1102 cx: &mut ViewContext<Editor>,
1103 ) {
1104 let settings = EditorSettings::get_global(cx);
1105 if !settings.show_completion_documentation {
1106 return;
1107 }
1108
1109 let completion_index = self.matches[self.selected_item].candidate_id;
1110 let Some(provider) = provider else {
1111 return;
1112 };
1113
1114 let resolve_task = provider.resolve_completions(
1115 self.buffer.clone(),
1116 vec![completion_index],
1117 self.completions.clone(),
1118 cx,
1119 );
1120
1121 let delay_ms =
1122 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1123 let delay = Duration::from_millis(delay_ms);
1124
1125 self.selected_completion_documentation_resolve_debounce
1126 .lock()
1127 .fire_new(delay, cx, |_, cx| {
1128 cx.spawn(move |this, mut cx| async move {
1129 if let Some(true) = resolve_task.await.log_err() {
1130 this.update(&mut cx, |_, cx| cx.notify()).ok();
1131 }
1132 })
1133 });
1134 }
1135
1136 fn visible(&self) -> bool {
1137 !self.matches.is_empty()
1138 }
1139
1140 fn render(
1141 &self,
1142 style: &EditorStyle,
1143 max_height: Pixels,
1144 workspace: Option<WeakView<Workspace>>,
1145 cx: &mut ViewContext<Editor>,
1146 ) -> AnyElement {
1147 let settings = EditorSettings::get_global(cx);
1148 let show_completion_documentation = settings.show_completion_documentation;
1149
1150 let widest_completion_ix = self
1151 .matches
1152 .iter()
1153 .enumerate()
1154 .max_by_key(|(_, mat)| {
1155 let completions = self.completions.read();
1156 let completion = &completions[mat.candidate_id];
1157 let documentation = &completion.documentation;
1158
1159 let mut len = completion.label.text.chars().count();
1160 if let Some(Documentation::SingleLine(text)) = documentation {
1161 if show_completion_documentation {
1162 len += text.chars().count();
1163 }
1164 }
1165
1166 len
1167 })
1168 .map(|(ix, _)| ix);
1169
1170 let completions = self.completions.clone();
1171 let matches = self.matches.clone();
1172 let selected_item = self.selected_item;
1173 let style = style.clone();
1174
1175 let multiline_docs = if show_completion_documentation {
1176 let mat = &self.matches[selected_item];
1177 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1178 Some(Documentation::MultiLinePlainText(text)) => {
1179 Some(div().child(SharedString::from(text.clone())))
1180 }
1181 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1182 Some(div().child(render_parsed_markdown(
1183 "completions_markdown",
1184 parsed,
1185 &style,
1186 workspace,
1187 cx,
1188 )))
1189 }
1190 _ => None,
1191 };
1192 multiline_docs.map(|div| {
1193 div.id("multiline_docs")
1194 .max_h(max_height)
1195 .flex_1()
1196 .px_1p5()
1197 .py_1()
1198 .min_w(px(260.))
1199 .max_w(px(640.))
1200 .w(px(500.))
1201 .overflow_y_scroll()
1202 .occlude()
1203 })
1204 } else {
1205 None
1206 };
1207
1208 let list = uniform_list(
1209 cx.view().clone(),
1210 "completions",
1211 matches.len(),
1212 move |_editor, range, cx| {
1213 let start_ix = range.start;
1214 let completions_guard = completions.read();
1215
1216 matches[range]
1217 .iter()
1218 .enumerate()
1219 .map(|(ix, mat)| {
1220 let item_ix = start_ix + ix;
1221 let candidate_id = mat.candidate_id;
1222 let completion = &completions_guard[candidate_id];
1223
1224 let documentation = if show_completion_documentation {
1225 &completion.documentation
1226 } else {
1227 &None
1228 };
1229
1230 let highlights = gpui::combine_highlights(
1231 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1232 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1233 |(range, mut highlight)| {
1234 // Ignore font weight for syntax highlighting, as we'll use it
1235 // for fuzzy matches.
1236 highlight.font_weight = None;
1237
1238 if completion.lsp_completion.deprecated.unwrap_or(false) {
1239 highlight.strikethrough = Some(StrikethroughStyle {
1240 thickness: 1.0.into(),
1241 ..Default::default()
1242 });
1243 highlight.color = Some(cx.theme().colors().text_muted);
1244 }
1245
1246 (range, highlight)
1247 },
1248 ),
1249 );
1250 let completion_label = StyledText::new(completion.label.text.clone())
1251 .with_highlights(&style.text, highlights);
1252 let documentation_label =
1253 if let Some(Documentation::SingleLine(text)) = documentation {
1254 if text.trim().is_empty() {
1255 None
1256 } else {
1257 Some(
1258 Label::new(text.clone())
1259 .ml_4()
1260 .size(LabelSize::Small)
1261 .color(Color::Muted),
1262 )
1263 }
1264 } else {
1265 None
1266 };
1267
1268 let color_swatch = completion
1269 .color()
1270 .map(|color| div().size_4().bg(color).rounded_sm());
1271
1272 div().min_w(px(220.)).max_w(px(540.)).child(
1273 ListItem::new(mat.candidate_id)
1274 .inset(true)
1275 .selected(item_ix == selected_item)
1276 .on_click(cx.listener(move |editor, _event, cx| {
1277 cx.stop_propagation();
1278 if let Some(task) = editor.confirm_completion(
1279 &ConfirmCompletion {
1280 item_ix: Some(item_ix),
1281 },
1282 cx,
1283 ) {
1284 task.detach_and_log_err(cx)
1285 }
1286 }))
1287 .start_slot::<Div>(color_swatch)
1288 .child(h_flex().overflow_hidden().child(completion_label))
1289 .end_slot::<Label>(documentation_label),
1290 )
1291 })
1292 .collect()
1293 },
1294 )
1295 .occlude()
1296 .max_h(max_height)
1297 .track_scroll(self.scroll_handle.clone())
1298 .with_width_from_item(widest_completion_ix)
1299 .with_sizing_behavior(ListSizingBehavior::Infer);
1300
1301 Popover::new()
1302 .child(list)
1303 .when_some(multiline_docs, |popover, multiline_docs| {
1304 popover.aside(multiline_docs)
1305 })
1306 .into_any_element()
1307 }
1308
1309 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1310 let mut matches = if let Some(query) = query {
1311 fuzzy::match_strings(
1312 &self.match_candidates,
1313 query,
1314 query.chars().any(|c| c.is_uppercase()),
1315 100,
1316 &Default::default(),
1317 executor,
1318 )
1319 .await
1320 } else {
1321 self.match_candidates
1322 .iter()
1323 .enumerate()
1324 .map(|(candidate_id, candidate)| StringMatch {
1325 candidate_id,
1326 score: Default::default(),
1327 positions: Default::default(),
1328 string: candidate.string.clone(),
1329 })
1330 .collect()
1331 };
1332
1333 // Remove all candidates where the query's start does not match the start of any word in the candidate
1334 if let Some(query) = query {
1335 if let Some(query_start) = query.chars().next() {
1336 matches.retain(|string_match| {
1337 split_words(&string_match.string).any(|word| {
1338 // Check that the first codepoint of the word as lowercase matches the first
1339 // codepoint of the query as lowercase
1340 word.chars()
1341 .flat_map(|codepoint| codepoint.to_lowercase())
1342 .zip(query_start.to_lowercase())
1343 .all(|(word_cp, query_cp)| word_cp == query_cp)
1344 })
1345 });
1346 }
1347 }
1348
1349 let completions = self.completions.read();
1350 if self.sort_completions {
1351 matches.sort_unstable_by_key(|mat| {
1352 // We do want to strike a balance here between what the language server tells us
1353 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1354 // `Creat` and there is a local variable called `CreateComponent`).
1355 // So what we do is: we bucket all matches into two buckets
1356 // - Strong matches
1357 // - Weak matches
1358 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1359 // and the Weak matches are the rest.
1360 //
1361 // For the strong matches, we sort by our fuzzy-finder score first and for the weak
1362 // matches, we prefer language-server sort_text first.
1363 //
1364 // The thinking behind that: we want to show strong matches first in order of relevance(fuzzy score).
1365 // Rest of the matches(weak) can be sorted as language-server expects.
1366
1367 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1368 enum MatchScore<'a> {
1369 Strong {
1370 score: Reverse<OrderedFloat<f64>>,
1371 sort_text: Option<&'a str>,
1372 sort_key: (usize, &'a str),
1373 },
1374 Weak {
1375 sort_text: Option<&'a str>,
1376 score: Reverse<OrderedFloat<f64>>,
1377 sort_key: (usize, &'a str),
1378 },
1379 }
1380
1381 let completion = &completions[mat.candidate_id];
1382 let sort_key = completion.sort_key();
1383 let sort_text = completion.lsp_completion.sort_text.as_deref();
1384 let score = Reverse(OrderedFloat(mat.score));
1385
1386 if mat.score >= 0.2 {
1387 MatchScore::Strong {
1388 score,
1389 sort_text,
1390 sort_key,
1391 }
1392 } else {
1393 MatchScore::Weak {
1394 sort_text,
1395 score,
1396 sort_key,
1397 }
1398 }
1399 });
1400 }
1401
1402 for mat in &mut matches {
1403 let completion = &completions[mat.candidate_id];
1404 mat.string.clone_from(&completion.label.text);
1405 for position in &mut mat.positions {
1406 *position += completion.label.filter_range.start;
1407 }
1408 }
1409 drop(completions);
1410
1411 self.matches = matches.into();
1412 self.selected_item = 0;
1413 }
1414}
1415
1416struct AvailableCodeAction {
1417 excerpt_id: ExcerptId,
1418 action: CodeAction,
1419 provider: Arc<dyn CodeActionProvider>,
1420}
1421
1422#[derive(Clone)]
1423struct CodeActionContents {
1424 tasks: Option<Arc<ResolvedTasks>>,
1425 actions: Option<Arc<[AvailableCodeAction]>>,
1426}
1427
1428impl CodeActionContents {
1429 fn len(&self) -> usize {
1430 match (&self.tasks, &self.actions) {
1431 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1432 (Some(tasks), None) => tasks.templates.len(),
1433 (None, Some(actions)) => actions.len(),
1434 (None, None) => 0,
1435 }
1436 }
1437
1438 fn is_empty(&self) -> bool {
1439 match (&self.tasks, &self.actions) {
1440 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1441 (Some(tasks), None) => tasks.templates.is_empty(),
1442 (None, Some(actions)) => actions.is_empty(),
1443 (None, None) => true,
1444 }
1445 }
1446
1447 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1448 self.tasks
1449 .iter()
1450 .flat_map(|tasks| {
1451 tasks
1452 .templates
1453 .iter()
1454 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1455 })
1456 .chain(self.actions.iter().flat_map(|actions| {
1457 actions.iter().map(|available| CodeActionsItem::CodeAction {
1458 excerpt_id: available.excerpt_id,
1459 action: available.action.clone(),
1460 provider: available.provider.clone(),
1461 })
1462 }))
1463 }
1464 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1465 match (&self.tasks, &self.actions) {
1466 (Some(tasks), Some(actions)) => {
1467 if index < tasks.templates.len() {
1468 tasks
1469 .templates
1470 .get(index)
1471 .cloned()
1472 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1473 } else {
1474 actions.get(index - tasks.templates.len()).map(|available| {
1475 CodeActionsItem::CodeAction {
1476 excerpt_id: available.excerpt_id,
1477 action: available.action.clone(),
1478 provider: available.provider.clone(),
1479 }
1480 })
1481 }
1482 }
1483 (Some(tasks), None) => tasks
1484 .templates
1485 .get(index)
1486 .cloned()
1487 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1488 (None, Some(actions)) => {
1489 actions
1490 .get(index)
1491 .map(|available| CodeActionsItem::CodeAction {
1492 excerpt_id: available.excerpt_id,
1493 action: available.action.clone(),
1494 provider: available.provider.clone(),
1495 })
1496 }
1497 (None, None) => None,
1498 }
1499 }
1500}
1501
1502#[allow(clippy::large_enum_variant)]
1503#[derive(Clone)]
1504enum CodeActionsItem {
1505 Task(TaskSourceKind, ResolvedTask),
1506 CodeAction {
1507 excerpt_id: ExcerptId,
1508 action: CodeAction,
1509 provider: Arc<dyn CodeActionProvider>,
1510 },
1511}
1512
1513impl CodeActionsItem {
1514 fn as_task(&self) -> Option<&ResolvedTask> {
1515 let Self::Task(_, task) = self else {
1516 return None;
1517 };
1518 Some(task)
1519 }
1520 fn as_code_action(&self) -> Option<&CodeAction> {
1521 let Self::CodeAction { action, .. } = self else {
1522 return None;
1523 };
1524 Some(action)
1525 }
1526 fn label(&self) -> String {
1527 match self {
1528 Self::CodeAction { action, .. } => action.lsp_action.title.clone(),
1529 Self::Task(_, task) => task.resolved_label.clone(),
1530 }
1531 }
1532}
1533
1534struct CodeActionsMenu {
1535 actions: CodeActionContents,
1536 buffer: Model<Buffer>,
1537 selected_item: usize,
1538 scroll_handle: UniformListScrollHandle,
1539 deployed_from_indicator: Option<DisplayRow>,
1540}
1541
1542impl CodeActionsMenu {
1543 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1544 self.selected_item = 0;
1545 self.scroll_handle
1546 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1547 cx.notify()
1548 }
1549
1550 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1551 if self.selected_item > 0 {
1552 self.selected_item -= 1;
1553 } else {
1554 self.selected_item = self.actions.len() - 1;
1555 }
1556 self.scroll_handle
1557 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1558 cx.notify();
1559 }
1560
1561 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1562 if self.selected_item + 1 < self.actions.len() {
1563 self.selected_item += 1;
1564 } else {
1565 self.selected_item = 0;
1566 }
1567 self.scroll_handle
1568 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1569 cx.notify();
1570 }
1571
1572 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1573 self.selected_item = self.actions.len() - 1;
1574 self.scroll_handle
1575 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1576 cx.notify()
1577 }
1578
1579 fn visible(&self) -> bool {
1580 !self.actions.is_empty()
1581 }
1582
1583 fn render(
1584 &self,
1585 cursor_position: DisplayPoint,
1586 _style: &EditorStyle,
1587 max_height: Pixels,
1588 cx: &mut ViewContext<Editor>,
1589 ) -> (ContextMenuOrigin, AnyElement) {
1590 let actions = self.actions.clone();
1591 let selected_item = self.selected_item;
1592 let element = uniform_list(
1593 cx.view().clone(),
1594 "code_actions_menu",
1595 self.actions.len(),
1596 move |_this, range, cx| {
1597 actions
1598 .iter()
1599 .skip(range.start)
1600 .take(range.end - range.start)
1601 .enumerate()
1602 .map(|(ix, action)| {
1603 let item_ix = range.start + ix;
1604 let selected = selected_item == item_ix;
1605 let colors = cx.theme().colors();
1606 div()
1607 .px_1()
1608 .rounded_md()
1609 .text_color(colors.text)
1610 .when(selected, |style| {
1611 style
1612 .bg(colors.element_active)
1613 .text_color(colors.text_accent)
1614 })
1615 .hover(|style| {
1616 style
1617 .bg(colors.element_hover)
1618 .text_color(colors.text_accent)
1619 })
1620 .whitespace_nowrap()
1621 .when_some(action.as_code_action(), |this, action| {
1622 this.on_mouse_down(
1623 MouseButton::Left,
1624 cx.listener(move |editor, _, cx| {
1625 cx.stop_propagation();
1626 if let Some(task) = editor.confirm_code_action(
1627 &ConfirmCodeAction {
1628 item_ix: Some(item_ix),
1629 },
1630 cx,
1631 ) {
1632 task.detach_and_log_err(cx)
1633 }
1634 }),
1635 )
1636 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1637 .child(SharedString::from(action.lsp_action.title.clone()))
1638 })
1639 .when_some(action.as_task(), |this, task| {
1640 this.on_mouse_down(
1641 MouseButton::Left,
1642 cx.listener(move |editor, _, cx| {
1643 cx.stop_propagation();
1644 if let Some(task) = editor.confirm_code_action(
1645 &ConfirmCodeAction {
1646 item_ix: Some(item_ix),
1647 },
1648 cx,
1649 ) {
1650 task.detach_and_log_err(cx)
1651 }
1652 }),
1653 )
1654 .child(SharedString::from(task.resolved_label.clone()))
1655 })
1656 })
1657 .collect()
1658 },
1659 )
1660 .elevation_1(cx)
1661 .p_1()
1662 .max_h(max_height)
1663 .occlude()
1664 .track_scroll(self.scroll_handle.clone())
1665 .with_width_from_item(
1666 self.actions
1667 .iter()
1668 .enumerate()
1669 .max_by_key(|(_, action)| match action {
1670 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1671 CodeActionsItem::CodeAction { action, .. } => {
1672 action.lsp_action.title.chars().count()
1673 }
1674 })
1675 .map(|(ix, _)| ix),
1676 )
1677 .with_sizing_behavior(ListSizingBehavior::Infer)
1678 .into_any_element();
1679
1680 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1681 ContextMenuOrigin::GutterIndicator(row)
1682 } else {
1683 ContextMenuOrigin::EditorPoint(cursor_position)
1684 };
1685
1686 (cursor_position, element)
1687 }
1688}
1689
1690#[derive(Debug)]
1691struct ActiveDiagnosticGroup {
1692 primary_range: Range<Anchor>,
1693 primary_message: String,
1694 group_id: usize,
1695 blocks: HashMap<CustomBlockId, Diagnostic>,
1696 is_valid: bool,
1697}
1698
1699#[derive(Serialize, Deserialize, Clone, Debug)]
1700pub struct ClipboardSelection {
1701 pub len: usize,
1702 pub is_entire_line: bool,
1703 pub first_line_indent: u32,
1704}
1705
1706#[derive(Debug)]
1707pub(crate) struct NavigationData {
1708 cursor_anchor: Anchor,
1709 cursor_position: Point,
1710 scroll_anchor: ScrollAnchor,
1711 scroll_top_row: u32,
1712}
1713
1714#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1715pub enum GotoDefinitionKind {
1716 Symbol,
1717 Declaration,
1718 Type,
1719 Implementation,
1720}
1721
1722#[derive(Debug, Clone)]
1723enum InlayHintRefreshReason {
1724 Toggle(bool),
1725 SettingsChange(InlayHintSettings),
1726 NewLinesShown,
1727 BufferEdited(HashSet<Arc<Language>>),
1728 RefreshRequested,
1729 ExcerptsRemoved(Vec<ExcerptId>),
1730}
1731
1732impl InlayHintRefreshReason {
1733 fn description(&self) -> &'static str {
1734 match self {
1735 Self::Toggle(_) => "toggle",
1736 Self::SettingsChange(_) => "settings change",
1737 Self::NewLinesShown => "new lines shown",
1738 Self::BufferEdited(_) => "buffer edited",
1739 Self::RefreshRequested => "refresh requested",
1740 Self::ExcerptsRemoved(_) => "excerpts removed",
1741 }
1742 }
1743}
1744
1745pub(crate) struct FocusedBlock {
1746 id: BlockId,
1747 focus_handle: WeakFocusHandle,
1748}
1749
1750impl Editor {
1751 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1752 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1753 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1754 Self::new(
1755 EditorMode::SingleLine { auto_width: false },
1756 buffer,
1757 None,
1758 false,
1759 cx,
1760 )
1761 }
1762
1763 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1764 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1765 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1766 Self::new(EditorMode::Full, buffer, None, false, cx)
1767 }
1768
1769 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1770 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1771 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1772 Self::new(
1773 EditorMode::SingleLine { auto_width: true },
1774 buffer,
1775 None,
1776 false,
1777 cx,
1778 )
1779 }
1780
1781 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1782 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1783 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1784 Self::new(
1785 EditorMode::AutoHeight { max_lines },
1786 buffer,
1787 None,
1788 false,
1789 cx,
1790 )
1791 }
1792
1793 pub fn for_buffer(
1794 buffer: Model<Buffer>,
1795 project: Option<Model<Project>>,
1796 cx: &mut ViewContext<Self>,
1797 ) -> Self {
1798 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1799 Self::new(EditorMode::Full, buffer, project, false, cx)
1800 }
1801
1802 pub fn for_multibuffer(
1803 buffer: Model<MultiBuffer>,
1804 project: Option<Model<Project>>,
1805 show_excerpt_controls: bool,
1806 cx: &mut ViewContext<Self>,
1807 ) -> Self {
1808 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1809 }
1810
1811 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1812 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1813 let mut clone = Self::new(
1814 self.mode,
1815 self.buffer.clone(),
1816 self.project.clone(),
1817 show_excerpt_controls,
1818 cx,
1819 );
1820 self.display_map.update(cx, |display_map, cx| {
1821 let snapshot = display_map.snapshot(cx);
1822 clone.display_map.update(cx, |display_map, cx| {
1823 display_map.set_state(&snapshot, cx);
1824 });
1825 });
1826 clone.selections.clone_state(&self.selections);
1827 clone.scroll_manager.clone_state(&self.scroll_manager);
1828 clone.searchable = self.searchable;
1829 clone
1830 }
1831
1832 pub fn new(
1833 mode: EditorMode,
1834 buffer: Model<MultiBuffer>,
1835 project: Option<Model<Project>>,
1836 show_excerpt_controls: bool,
1837 cx: &mut ViewContext<Self>,
1838 ) -> Self {
1839 let style = cx.text_style();
1840 let font_size = style.font_size.to_pixels(cx.rem_size());
1841 let editor = cx.view().downgrade();
1842 let fold_placeholder = FoldPlaceholder {
1843 constrain_width: true,
1844 render: Arc::new(move |fold_id, fold_range, cx| {
1845 let editor = editor.clone();
1846 div()
1847 .id(fold_id)
1848 .bg(cx.theme().colors().ghost_element_background)
1849 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1850 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1851 .rounded_sm()
1852 .size_full()
1853 .cursor_pointer()
1854 .child("⋯")
1855 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1856 .on_click(move |_, cx| {
1857 editor
1858 .update(cx, |editor, cx| {
1859 editor.unfold_ranges(
1860 &[fold_range.start..fold_range.end],
1861 true,
1862 false,
1863 cx,
1864 );
1865 cx.stop_propagation();
1866 })
1867 .ok();
1868 })
1869 .into_any()
1870 }),
1871 merge_adjacent: true,
1872 ..Default::default()
1873 };
1874 let display_map = cx.new_model(|cx| {
1875 DisplayMap::new(
1876 buffer.clone(),
1877 style.font(),
1878 font_size,
1879 None,
1880 show_excerpt_controls,
1881 FILE_HEADER_HEIGHT,
1882 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1883 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1884 fold_placeholder,
1885 cx,
1886 )
1887 });
1888
1889 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1890
1891 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1892
1893 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1894 .then(|| language_settings::SoftWrap::None);
1895
1896 let mut project_subscriptions = Vec::new();
1897 if mode == EditorMode::Full {
1898 if let Some(project) = project.as_ref() {
1899 if buffer.read(cx).is_singleton() {
1900 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1901 cx.emit(EditorEvent::TitleChanged);
1902 }));
1903 }
1904 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1905 if let project::Event::RefreshInlayHints = event {
1906 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1907 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1908 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1909 let focus_handle = editor.focus_handle(cx);
1910 if focus_handle.is_focused(cx) {
1911 let snapshot = buffer.read(cx).snapshot();
1912 for (range, snippet) in snippet_edits {
1913 let editor_range =
1914 language::range_from_lsp(*range).to_offset(&snapshot);
1915 editor
1916 .insert_snippet(&[editor_range], snippet.clone(), cx)
1917 .ok();
1918 }
1919 }
1920 }
1921 }
1922 }));
1923 if let Some(task_inventory) = project
1924 .read(cx)
1925 .task_store()
1926 .read(cx)
1927 .task_inventory()
1928 .cloned()
1929 {
1930 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1931 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1932 }));
1933 }
1934 }
1935 }
1936
1937 let inlay_hint_settings = inlay_hint_settings(
1938 selections.newest_anchor().head(),
1939 &buffer.read(cx).snapshot(cx),
1940 cx,
1941 );
1942 let focus_handle = cx.focus_handle();
1943 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1944 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1945 .detach();
1946 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1947 .detach();
1948 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1949
1950 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1951 Some(false)
1952 } else {
1953 None
1954 };
1955
1956 let mut code_action_providers = Vec::new();
1957 if let Some(project) = project.clone() {
1958 code_action_providers.push(Arc::new(project) as Arc<_>);
1959 }
1960
1961 let mut this = Self {
1962 focus_handle,
1963 show_cursor_when_unfocused: false,
1964 last_focused_descendant: None,
1965 buffer: buffer.clone(),
1966 display_map: display_map.clone(),
1967 selections,
1968 scroll_manager: ScrollManager::new(cx),
1969 columnar_selection_tail: None,
1970 add_selections_state: None,
1971 select_next_state: None,
1972 select_prev_state: None,
1973 selection_history: Default::default(),
1974 autoclose_regions: Default::default(),
1975 snippet_stack: Default::default(),
1976 select_larger_syntax_node_stack: Vec::new(),
1977 ime_transaction: Default::default(),
1978 active_diagnostics: None,
1979 soft_wrap_mode_override,
1980 completion_provider: project.clone().map(|project| Box::new(project) as _),
1981 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1982 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1983 project,
1984 blink_manager: blink_manager.clone(),
1985 show_local_selections: true,
1986 mode,
1987 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1988 show_gutter: mode == EditorMode::Full,
1989 show_line_numbers: None,
1990 use_relative_line_numbers: None,
1991 show_git_diff_gutter: None,
1992 show_code_actions: None,
1993 show_runnables: None,
1994 show_wrap_guides: None,
1995 show_indent_guides,
1996 placeholder_text: None,
1997 highlight_order: 0,
1998 highlighted_rows: HashMap::default(),
1999 background_highlights: Default::default(),
2000 gutter_highlights: TreeMap::default(),
2001 scrollbar_marker_state: ScrollbarMarkerState::default(),
2002 active_indent_guides_state: ActiveIndentGuidesState::default(),
2003 nav_history: None,
2004 context_menu: RwLock::new(None),
2005 mouse_context_menu: None,
2006 hunk_controls_menu_handle: PopoverMenuHandle::default(),
2007 completion_tasks: Default::default(),
2008 signature_help_state: SignatureHelpState::default(),
2009 auto_signature_help: None,
2010 find_all_references_task_sources: Vec::new(),
2011 next_completion_id: 0,
2012 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
2013 next_inlay_id: 0,
2014 code_action_providers,
2015 available_code_actions: Default::default(),
2016 code_actions_task: Default::default(),
2017 document_highlights_task: Default::default(),
2018 linked_editing_range_task: Default::default(),
2019 pending_rename: Default::default(),
2020 searchable: true,
2021 cursor_shape: EditorSettings::get_global(cx)
2022 .cursor_shape
2023 .unwrap_or_default(),
2024 current_line_highlight: None,
2025 autoindent_mode: Some(AutoindentMode::EachLine),
2026 collapse_matches: false,
2027 workspace: None,
2028 input_enabled: true,
2029 use_modal_editing: mode == EditorMode::Full,
2030 read_only: false,
2031 use_autoclose: true,
2032 use_auto_surround: true,
2033 auto_replace_emoji_shortcode: false,
2034 leader_peer_id: None,
2035 remote_id: None,
2036 hover_state: Default::default(),
2037 hovered_link_state: Default::default(),
2038 inline_completion_provider: None,
2039 active_inline_completion: None,
2040 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
2041 expanded_hunks: ExpandedHunks::default(),
2042 gutter_hovered: false,
2043 pixel_position_of_newest_cursor: None,
2044 last_bounds: None,
2045 expect_bounds_change: None,
2046 gutter_dimensions: GutterDimensions::default(),
2047 style: None,
2048 show_cursor_names: false,
2049 hovered_cursors: Default::default(),
2050 next_editor_action_id: EditorActionId::default(),
2051 editor_actions: Rc::default(),
2052 show_inline_completions_override: None,
2053 enable_inline_completions: true,
2054 custom_context_menu: None,
2055 show_git_blame_gutter: false,
2056 show_git_blame_inline: false,
2057 show_selection_menu: None,
2058 show_git_blame_inline_delay_task: None,
2059 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
2060 serialize_dirty_buffers: ProjectSettings::get_global(cx)
2061 .session
2062 .restore_unsaved_buffers,
2063 blame: None,
2064 blame_subscription: None,
2065 tasks: Default::default(),
2066 _subscriptions: vec![
2067 cx.observe(&buffer, Self::on_buffer_changed),
2068 cx.subscribe(&buffer, Self::on_buffer_event),
2069 cx.observe(&display_map, Self::on_display_map_changed),
2070 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
2071 cx.observe_global::<SettingsStore>(Self::settings_changed),
2072 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
2073 cx.observe_window_activation(|editor, cx| {
2074 let active = cx.is_window_active();
2075 editor.blink_manager.update(cx, |blink_manager, cx| {
2076 if active {
2077 blink_manager.enable(cx);
2078 } else {
2079 blink_manager.disable(cx);
2080 }
2081 });
2082 }),
2083 ],
2084 tasks_update_task: None,
2085 linked_edit_ranges: Default::default(),
2086 previous_search_ranges: None,
2087 breadcrumb_header: None,
2088 focused_block: None,
2089 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
2090 addons: HashMap::default(),
2091 _scroll_cursor_center_top_bottom_task: Task::ready(()),
2092 text_style_refinement: None,
2093 };
2094 this.tasks_update_task = Some(this.refresh_runnables(cx));
2095 this._subscriptions.extend(project_subscriptions);
2096
2097 this.end_selection(cx);
2098 this.scroll_manager.show_scrollbar(cx);
2099
2100 if mode == EditorMode::Full {
2101 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
2102 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
2103
2104 if this.git_blame_inline_enabled {
2105 this.git_blame_inline_enabled = true;
2106 this.start_git_blame_inline(false, cx);
2107 }
2108 }
2109
2110 this.report_editor_event("open", None, cx);
2111 this
2112 }
2113
2114 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
2115 self.mouse_context_menu
2116 .as_ref()
2117 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
2118 }
2119
2120 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
2121 let mut key_context = KeyContext::new_with_defaults();
2122 key_context.add("Editor");
2123 let mode = match self.mode {
2124 EditorMode::SingleLine { .. } => "single_line",
2125 EditorMode::AutoHeight { .. } => "auto_height",
2126 EditorMode::Full => "full",
2127 };
2128
2129 if EditorSettings::jupyter_enabled(cx) {
2130 key_context.add("jupyter");
2131 }
2132
2133 key_context.set("mode", mode);
2134 if self.pending_rename.is_some() {
2135 key_context.add("renaming");
2136 }
2137 if self.context_menu_visible() {
2138 match self.context_menu.read().as_ref() {
2139 Some(ContextMenu::Completions(_)) => {
2140 key_context.add("menu");
2141 key_context.add("showing_completions")
2142 }
2143 Some(ContextMenu::CodeActions(_)) => {
2144 key_context.add("menu");
2145 key_context.add("showing_code_actions")
2146 }
2147 None => {}
2148 }
2149 }
2150
2151 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2152 if !self.focus_handle(cx).contains_focused(cx)
2153 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2154 {
2155 for addon in self.addons.values() {
2156 addon.extend_key_context(&mut key_context, cx)
2157 }
2158 }
2159
2160 if let Some(extension) = self
2161 .buffer
2162 .read(cx)
2163 .as_singleton()
2164 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2165 {
2166 key_context.set("extension", extension.to_string());
2167 }
2168
2169 if self.has_active_inline_completion(cx) {
2170 key_context.add("copilot_suggestion");
2171 key_context.add("inline_completion");
2172 }
2173
2174 key_context
2175 }
2176
2177 pub fn new_file(
2178 workspace: &mut Workspace,
2179 _: &workspace::NewFile,
2180 cx: &mut ViewContext<Workspace>,
2181 ) {
2182 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2183 "Failed to create buffer",
2184 cx,
2185 |e, _| match e.error_code() {
2186 ErrorCode::RemoteUpgradeRequired => Some(format!(
2187 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2188 e.error_tag("required").unwrap_or("the latest version")
2189 )),
2190 _ => None,
2191 },
2192 );
2193 }
2194
2195 pub fn new_in_workspace(
2196 workspace: &mut Workspace,
2197 cx: &mut ViewContext<Workspace>,
2198 ) -> Task<Result<View<Editor>>> {
2199 let project = workspace.project().clone();
2200 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2201
2202 cx.spawn(|workspace, mut cx| async move {
2203 let buffer = create.await?;
2204 workspace.update(&mut cx, |workspace, cx| {
2205 let editor =
2206 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2207 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2208 editor
2209 })
2210 })
2211 }
2212
2213 fn new_file_vertical(
2214 workspace: &mut Workspace,
2215 _: &workspace::NewFileSplitVertical,
2216 cx: &mut ViewContext<Workspace>,
2217 ) {
2218 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2219 }
2220
2221 fn new_file_horizontal(
2222 workspace: &mut Workspace,
2223 _: &workspace::NewFileSplitHorizontal,
2224 cx: &mut ViewContext<Workspace>,
2225 ) {
2226 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2227 }
2228
2229 fn new_file_in_direction(
2230 workspace: &mut Workspace,
2231 direction: SplitDirection,
2232 cx: &mut ViewContext<Workspace>,
2233 ) {
2234 let project = workspace.project().clone();
2235 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2236
2237 cx.spawn(|workspace, mut cx| async move {
2238 let buffer = create.await?;
2239 workspace.update(&mut cx, move |workspace, cx| {
2240 workspace.split_item(
2241 direction,
2242 Box::new(
2243 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2244 ),
2245 cx,
2246 )
2247 })?;
2248 anyhow::Ok(())
2249 })
2250 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2251 ErrorCode::RemoteUpgradeRequired => Some(format!(
2252 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2253 e.error_tag("required").unwrap_or("the latest version")
2254 )),
2255 _ => None,
2256 });
2257 }
2258
2259 pub fn leader_peer_id(&self) -> Option<PeerId> {
2260 self.leader_peer_id
2261 }
2262
2263 pub fn buffer(&self) -> &Model<MultiBuffer> {
2264 &self.buffer
2265 }
2266
2267 pub fn workspace(&self) -> Option<View<Workspace>> {
2268 self.workspace.as_ref()?.0.upgrade()
2269 }
2270
2271 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2272 self.buffer().read(cx).title(cx)
2273 }
2274
2275 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2276 let git_blame_gutter_max_author_length = self
2277 .render_git_blame_gutter(cx)
2278 .then(|| {
2279 if let Some(blame) = self.blame.as_ref() {
2280 let max_author_length =
2281 blame.update(cx, |blame, cx| blame.max_author_length(cx));
2282 Some(max_author_length)
2283 } else {
2284 None
2285 }
2286 })
2287 .flatten();
2288
2289 EditorSnapshot {
2290 mode: self.mode,
2291 show_gutter: self.show_gutter,
2292 show_line_numbers: self.show_line_numbers,
2293 show_git_diff_gutter: self.show_git_diff_gutter,
2294 show_code_actions: self.show_code_actions,
2295 show_runnables: self.show_runnables,
2296 git_blame_gutter_max_author_length,
2297 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2298 scroll_anchor: self.scroll_manager.anchor(),
2299 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2300 placeholder_text: self.placeholder_text.clone(),
2301 is_focused: self.focus_handle.is_focused(cx),
2302 current_line_highlight: self
2303 .current_line_highlight
2304 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2305 gutter_hovered: self.gutter_hovered,
2306 }
2307 }
2308
2309 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2310 self.buffer.read(cx).language_at(point, cx)
2311 }
2312
2313 pub fn file_at<T: ToOffset>(
2314 &self,
2315 point: T,
2316 cx: &AppContext,
2317 ) -> Option<Arc<dyn language::File>> {
2318 self.buffer.read(cx).read(cx).file_at(point).cloned()
2319 }
2320
2321 pub fn active_excerpt(
2322 &self,
2323 cx: &AppContext,
2324 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2325 self.buffer
2326 .read(cx)
2327 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2328 }
2329
2330 pub fn mode(&self) -> EditorMode {
2331 self.mode
2332 }
2333
2334 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2335 self.collaboration_hub.as_deref()
2336 }
2337
2338 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2339 self.collaboration_hub = Some(hub);
2340 }
2341
2342 pub fn set_custom_context_menu(
2343 &mut self,
2344 f: impl 'static
2345 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2346 ) {
2347 self.custom_context_menu = Some(Box::new(f))
2348 }
2349
2350 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
2351 self.completion_provider = provider;
2352 }
2353
2354 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
2355 self.semantics_provider.clone()
2356 }
2357
2358 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
2359 self.semantics_provider = provider;
2360 }
2361
2362 pub fn set_inline_completion_provider<T>(
2363 &mut self,
2364 provider: Option<Model<T>>,
2365 cx: &mut ViewContext<Self>,
2366 ) where
2367 T: InlineCompletionProvider,
2368 {
2369 self.inline_completion_provider =
2370 provider.map(|provider| RegisteredInlineCompletionProvider {
2371 _subscription: cx.observe(&provider, |this, _, cx| {
2372 if this.focus_handle.is_focused(cx) {
2373 this.update_visible_inline_completion(cx);
2374 }
2375 }),
2376 provider: Arc::new(provider),
2377 });
2378 self.refresh_inline_completion(false, false, cx);
2379 }
2380
2381 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2382 self.placeholder_text.as_deref()
2383 }
2384
2385 pub fn set_placeholder_text(
2386 &mut self,
2387 placeholder_text: impl Into<Arc<str>>,
2388 cx: &mut ViewContext<Self>,
2389 ) {
2390 let placeholder_text = Some(placeholder_text.into());
2391 if self.placeholder_text != placeholder_text {
2392 self.placeholder_text = placeholder_text;
2393 cx.notify();
2394 }
2395 }
2396
2397 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2398 self.cursor_shape = cursor_shape;
2399
2400 // Disrupt blink for immediate user feedback that the cursor shape has changed
2401 self.blink_manager.update(cx, BlinkManager::show_cursor);
2402
2403 cx.notify();
2404 }
2405
2406 pub fn set_current_line_highlight(
2407 &mut self,
2408 current_line_highlight: Option<CurrentLineHighlight>,
2409 ) {
2410 self.current_line_highlight = current_line_highlight;
2411 }
2412
2413 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2414 self.collapse_matches = collapse_matches;
2415 }
2416
2417 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2418 if self.collapse_matches {
2419 return range.start..range.start;
2420 }
2421 range.clone()
2422 }
2423
2424 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2425 if self.display_map.read(cx).clip_at_line_ends != clip {
2426 self.display_map
2427 .update(cx, |map, _| map.clip_at_line_ends = clip);
2428 }
2429 }
2430
2431 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2432 self.input_enabled = input_enabled;
2433 }
2434
2435 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2436 self.enable_inline_completions = enabled;
2437 }
2438
2439 pub fn set_autoindent(&mut self, autoindent: bool) {
2440 if autoindent {
2441 self.autoindent_mode = Some(AutoindentMode::EachLine);
2442 } else {
2443 self.autoindent_mode = None;
2444 }
2445 }
2446
2447 pub fn read_only(&self, cx: &AppContext) -> bool {
2448 self.read_only || self.buffer.read(cx).read_only()
2449 }
2450
2451 pub fn set_read_only(&mut self, read_only: bool) {
2452 self.read_only = read_only;
2453 }
2454
2455 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2456 self.use_autoclose = autoclose;
2457 }
2458
2459 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2460 self.use_auto_surround = auto_surround;
2461 }
2462
2463 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2464 self.auto_replace_emoji_shortcode = auto_replace;
2465 }
2466
2467 pub fn toggle_inline_completions(
2468 &mut self,
2469 _: &ToggleInlineCompletions,
2470 cx: &mut ViewContext<Self>,
2471 ) {
2472 if self.show_inline_completions_override.is_some() {
2473 self.set_show_inline_completions(None, cx);
2474 } else {
2475 let cursor = self.selections.newest_anchor().head();
2476 if let Some((buffer, cursor_buffer_position)) =
2477 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2478 {
2479 let show_inline_completions =
2480 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2481 self.set_show_inline_completions(Some(show_inline_completions), cx);
2482 }
2483 }
2484 }
2485
2486 pub fn set_show_inline_completions(
2487 &mut self,
2488 show_inline_completions: Option<bool>,
2489 cx: &mut ViewContext<Self>,
2490 ) {
2491 self.show_inline_completions_override = show_inline_completions;
2492 self.refresh_inline_completion(false, true, cx);
2493 }
2494
2495 fn should_show_inline_completions(
2496 &self,
2497 buffer: &Model<Buffer>,
2498 buffer_position: language::Anchor,
2499 cx: &AppContext,
2500 ) -> bool {
2501 if !self.snippet_stack.is_empty() {
2502 return false;
2503 }
2504
2505 if let Some(provider) = self.inline_completion_provider() {
2506 if let Some(show_inline_completions) = self.show_inline_completions_override {
2507 show_inline_completions
2508 } else {
2509 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2510 }
2511 } else {
2512 false
2513 }
2514 }
2515
2516 pub fn set_use_modal_editing(&mut self, to: bool) {
2517 self.use_modal_editing = to;
2518 }
2519
2520 pub fn use_modal_editing(&self) -> bool {
2521 self.use_modal_editing
2522 }
2523
2524 fn selections_did_change(
2525 &mut self,
2526 local: bool,
2527 old_cursor_position: &Anchor,
2528 show_completions: bool,
2529 cx: &mut ViewContext<Self>,
2530 ) {
2531 cx.invalidate_character_coordinates();
2532
2533 // Copy selections to primary selection buffer
2534 #[cfg(target_os = "linux")]
2535 if local {
2536 let selections = self.selections.all::<usize>(cx);
2537 let buffer_handle = self.buffer.read(cx).read(cx);
2538
2539 let mut text = String::new();
2540 for (index, selection) in selections.iter().enumerate() {
2541 let text_for_selection = buffer_handle
2542 .text_for_range(selection.start..selection.end)
2543 .collect::<String>();
2544
2545 text.push_str(&text_for_selection);
2546 if index != selections.len() - 1 {
2547 text.push('\n');
2548 }
2549 }
2550
2551 if !text.is_empty() {
2552 cx.write_to_primary(ClipboardItem::new_string(text));
2553 }
2554 }
2555
2556 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2557 self.buffer.update(cx, |buffer, cx| {
2558 buffer.set_active_selections(
2559 &self.selections.disjoint_anchors(),
2560 self.selections.line_mode,
2561 self.cursor_shape,
2562 cx,
2563 )
2564 });
2565 }
2566 let display_map = self
2567 .display_map
2568 .update(cx, |display_map, cx| display_map.snapshot(cx));
2569 let buffer = &display_map.buffer_snapshot;
2570 self.add_selections_state = None;
2571 self.select_next_state = None;
2572 self.select_prev_state = None;
2573 self.select_larger_syntax_node_stack.clear();
2574 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2575 self.snippet_stack
2576 .invalidate(&self.selections.disjoint_anchors(), buffer);
2577 self.take_rename(false, cx);
2578
2579 let new_cursor_position = self.selections.newest_anchor().head();
2580
2581 self.push_to_nav_history(
2582 *old_cursor_position,
2583 Some(new_cursor_position.to_point(buffer)),
2584 cx,
2585 );
2586
2587 if local {
2588 let new_cursor_position = self.selections.newest_anchor().head();
2589 let mut context_menu = self.context_menu.write();
2590 let completion_menu = match context_menu.as_ref() {
2591 Some(ContextMenu::Completions(menu)) => Some(menu),
2592
2593 _ => {
2594 *context_menu = None;
2595 None
2596 }
2597 };
2598
2599 if let Some(completion_menu) = completion_menu {
2600 let cursor_position = new_cursor_position.to_offset(buffer);
2601 let (word_range, kind) =
2602 buffer.surrounding_word(completion_menu.initial_position, true);
2603 if kind == Some(CharKind::Word)
2604 && word_range.to_inclusive().contains(&cursor_position)
2605 {
2606 let mut completion_menu = completion_menu.clone();
2607 drop(context_menu);
2608
2609 let query = Self::completion_query(buffer, cursor_position);
2610 cx.spawn(move |this, mut cx| async move {
2611 completion_menu
2612 .filter(query.as_deref(), cx.background_executor().clone())
2613 .await;
2614
2615 this.update(&mut cx, |this, cx| {
2616 let mut context_menu = this.context_menu.write();
2617 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2618 return;
2619 };
2620
2621 if menu.id > completion_menu.id {
2622 return;
2623 }
2624
2625 *context_menu = Some(ContextMenu::Completions(completion_menu));
2626 drop(context_menu);
2627 cx.notify();
2628 })
2629 })
2630 .detach();
2631
2632 if show_completions {
2633 self.show_completions(&ShowCompletions { trigger: None }, cx);
2634 }
2635 } else {
2636 drop(context_menu);
2637 self.hide_context_menu(cx);
2638 }
2639 } else {
2640 drop(context_menu);
2641 }
2642
2643 hide_hover(self, cx);
2644
2645 if old_cursor_position.to_display_point(&display_map).row()
2646 != new_cursor_position.to_display_point(&display_map).row()
2647 {
2648 self.available_code_actions.take();
2649 }
2650 self.refresh_code_actions(cx);
2651 self.refresh_document_highlights(cx);
2652 refresh_matching_bracket_highlights(self, cx);
2653 self.discard_inline_completion(false, cx);
2654 linked_editing_ranges::refresh_linked_ranges(self, cx);
2655 if self.git_blame_inline_enabled {
2656 self.start_inline_blame_timer(cx);
2657 }
2658 }
2659
2660 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2661 cx.emit(EditorEvent::SelectionsChanged { local });
2662
2663 if self.selections.disjoint_anchors().len() == 1 {
2664 cx.emit(SearchEvent::ActiveMatchChanged)
2665 }
2666 cx.notify();
2667 }
2668
2669 pub fn change_selections<R>(
2670 &mut self,
2671 autoscroll: Option<Autoscroll>,
2672 cx: &mut ViewContext<Self>,
2673 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2674 ) -> R {
2675 self.change_selections_inner(autoscroll, true, cx, change)
2676 }
2677
2678 pub fn change_selections_inner<R>(
2679 &mut self,
2680 autoscroll: Option<Autoscroll>,
2681 request_completions: bool,
2682 cx: &mut ViewContext<Self>,
2683 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2684 ) -> R {
2685 let old_cursor_position = self.selections.newest_anchor().head();
2686 self.push_to_selection_history();
2687
2688 let (changed, result) = self.selections.change_with(cx, change);
2689
2690 if changed {
2691 if let Some(autoscroll) = autoscroll {
2692 self.request_autoscroll(autoscroll, cx);
2693 }
2694 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2695
2696 if self.should_open_signature_help_automatically(
2697 &old_cursor_position,
2698 self.signature_help_state.backspace_pressed(),
2699 cx,
2700 ) {
2701 self.show_signature_help(&ShowSignatureHelp, cx);
2702 }
2703 self.signature_help_state.set_backspace_pressed(false);
2704 }
2705
2706 result
2707 }
2708
2709 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2710 where
2711 I: IntoIterator<Item = (Range<S>, T)>,
2712 S: ToOffset,
2713 T: Into<Arc<str>>,
2714 {
2715 if self.read_only(cx) {
2716 return;
2717 }
2718
2719 self.buffer
2720 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2721 }
2722
2723 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2724 where
2725 I: IntoIterator<Item = (Range<S>, T)>,
2726 S: ToOffset,
2727 T: Into<Arc<str>>,
2728 {
2729 if self.read_only(cx) {
2730 return;
2731 }
2732
2733 self.buffer.update(cx, |buffer, cx| {
2734 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2735 });
2736 }
2737
2738 pub fn edit_with_block_indent<I, S, T>(
2739 &mut self,
2740 edits: I,
2741 original_indent_columns: Vec<u32>,
2742 cx: &mut ViewContext<Self>,
2743 ) where
2744 I: IntoIterator<Item = (Range<S>, T)>,
2745 S: ToOffset,
2746 T: Into<Arc<str>>,
2747 {
2748 if self.read_only(cx) {
2749 return;
2750 }
2751
2752 self.buffer.update(cx, |buffer, cx| {
2753 buffer.edit(
2754 edits,
2755 Some(AutoindentMode::Block {
2756 original_indent_columns,
2757 }),
2758 cx,
2759 )
2760 });
2761 }
2762
2763 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2764 self.hide_context_menu(cx);
2765
2766 match phase {
2767 SelectPhase::Begin {
2768 position,
2769 add,
2770 click_count,
2771 } => self.begin_selection(position, add, click_count, cx),
2772 SelectPhase::BeginColumnar {
2773 position,
2774 goal_column,
2775 reset,
2776 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2777 SelectPhase::Extend {
2778 position,
2779 click_count,
2780 } => self.extend_selection(position, click_count, cx),
2781 SelectPhase::Update {
2782 position,
2783 goal_column,
2784 scroll_delta,
2785 } => self.update_selection(position, goal_column, scroll_delta, cx),
2786 SelectPhase::End => self.end_selection(cx),
2787 }
2788 }
2789
2790 fn extend_selection(
2791 &mut self,
2792 position: DisplayPoint,
2793 click_count: usize,
2794 cx: &mut ViewContext<Self>,
2795 ) {
2796 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2797 let tail = self.selections.newest::<usize>(cx).tail();
2798 self.begin_selection(position, false, click_count, cx);
2799
2800 let position = position.to_offset(&display_map, Bias::Left);
2801 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2802
2803 let mut pending_selection = self
2804 .selections
2805 .pending_anchor()
2806 .expect("extend_selection not called with pending selection");
2807 if position >= tail {
2808 pending_selection.start = tail_anchor;
2809 } else {
2810 pending_selection.end = tail_anchor;
2811 pending_selection.reversed = true;
2812 }
2813
2814 let mut pending_mode = self.selections.pending_mode().unwrap();
2815 match &mut pending_mode {
2816 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2817 _ => {}
2818 }
2819
2820 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2821 s.set_pending(pending_selection, pending_mode)
2822 });
2823 }
2824
2825 fn begin_selection(
2826 &mut self,
2827 position: DisplayPoint,
2828 add: bool,
2829 click_count: usize,
2830 cx: &mut ViewContext<Self>,
2831 ) {
2832 if !self.focus_handle.is_focused(cx) {
2833 self.last_focused_descendant = None;
2834 cx.focus(&self.focus_handle);
2835 }
2836
2837 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2838 let buffer = &display_map.buffer_snapshot;
2839 let newest_selection = self.selections.newest_anchor().clone();
2840 let position = display_map.clip_point(position, Bias::Left);
2841
2842 let start;
2843 let end;
2844 let mode;
2845 let auto_scroll;
2846 match click_count {
2847 1 => {
2848 start = buffer.anchor_before(position.to_point(&display_map));
2849 end = start;
2850 mode = SelectMode::Character;
2851 auto_scroll = true;
2852 }
2853 2 => {
2854 let range = movement::surrounding_word(&display_map, position);
2855 start = buffer.anchor_before(range.start.to_point(&display_map));
2856 end = buffer.anchor_before(range.end.to_point(&display_map));
2857 mode = SelectMode::Word(start..end);
2858 auto_scroll = true;
2859 }
2860 3 => {
2861 let position = display_map
2862 .clip_point(position, Bias::Left)
2863 .to_point(&display_map);
2864 let line_start = display_map.prev_line_boundary(position).0;
2865 let next_line_start = buffer.clip_point(
2866 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2867 Bias::Left,
2868 );
2869 start = buffer.anchor_before(line_start);
2870 end = buffer.anchor_before(next_line_start);
2871 mode = SelectMode::Line(start..end);
2872 auto_scroll = true;
2873 }
2874 _ => {
2875 start = buffer.anchor_before(0);
2876 end = buffer.anchor_before(buffer.len());
2877 mode = SelectMode::All;
2878 auto_scroll = false;
2879 }
2880 }
2881
2882 let point_to_delete: Option<usize> = {
2883 let selected_points: Vec<Selection<Point>> =
2884 self.selections.disjoint_in_range(start..end, cx);
2885
2886 if !add || click_count > 1 {
2887 None
2888 } else if !selected_points.is_empty() {
2889 Some(selected_points[0].id)
2890 } else {
2891 let clicked_point_already_selected =
2892 self.selections.disjoint.iter().find(|selection| {
2893 selection.start.to_point(buffer) == start.to_point(buffer)
2894 || selection.end.to_point(buffer) == end.to_point(buffer)
2895 });
2896
2897 clicked_point_already_selected.map(|selection| selection.id)
2898 }
2899 };
2900
2901 let selections_count = self.selections.count();
2902
2903 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2904 if let Some(point_to_delete) = point_to_delete {
2905 s.delete(point_to_delete);
2906
2907 if selections_count == 1 {
2908 s.set_pending_anchor_range(start..end, mode);
2909 }
2910 } else {
2911 if !add {
2912 s.clear_disjoint();
2913 } else if click_count > 1 {
2914 s.delete(newest_selection.id)
2915 }
2916
2917 s.set_pending_anchor_range(start..end, mode);
2918 }
2919 });
2920 }
2921
2922 fn begin_columnar_selection(
2923 &mut self,
2924 position: DisplayPoint,
2925 goal_column: u32,
2926 reset: bool,
2927 cx: &mut ViewContext<Self>,
2928 ) {
2929 if !self.focus_handle.is_focused(cx) {
2930 self.last_focused_descendant = None;
2931 cx.focus(&self.focus_handle);
2932 }
2933
2934 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2935
2936 if reset {
2937 let pointer_position = display_map
2938 .buffer_snapshot
2939 .anchor_before(position.to_point(&display_map));
2940
2941 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2942 s.clear_disjoint();
2943 s.set_pending_anchor_range(
2944 pointer_position..pointer_position,
2945 SelectMode::Character,
2946 );
2947 });
2948 }
2949
2950 let tail = self.selections.newest::<Point>(cx).tail();
2951 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2952
2953 if !reset {
2954 self.select_columns(
2955 tail.to_display_point(&display_map),
2956 position,
2957 goal_column,
2958 &display_map,
2959 cx,
2960 );
2961 }
2962 }
2963
2964 fn update_selection(
2965 &mut self,
2966 position: DisplayPoint,
2967 goal_column: u32,
2968 scroll_delta: gpui::Point<f32>,
2969 cx: &mut ViewContext<Self>,
2970 ) {
2971 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2972
2973 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2974 let tail = tail.to_display_point(&display_map);
2975 self.select_columns(tail, position, goal_column, &display_map, cx);
2976 } else if let Some(mut pending) = self.selections.pending_anchor() {
2977 let buffer = self.buffer.read(cx).snapshot(cx);
2978 let head;
2979 let tail;
2980 let mode = self.selections.pending_mode().unwrap();
2981 match &mode {
2982 SelectMode::Character => {
2983 head = position.to_point(&display_map);
2984 tail = pending.tail().to_point(&buffer);
2985 }
2986 SelectMode::Word(original_range) => {
2987 let original_display_range = original_range.start.to_display_point(&display_map)
2988 ..original_range.end.to_display_point(&display_map);
2989 let original_buffer_range = original_display_range.start.to_point(&display_map)
2990 ..original_display_range.end.to_point(&display_map);
2991 if movement::is_inside_word(&display_map, position)
2992 || original_display_range.contains(&position)
2993 {
2994 let word_range = movement::surrounding_word(&display_map, position);
2995 if word_range.start < original_display_range.start {
2996 head = word_range.start.to_point(&display_map);
2997 } else {
2998 head = word_range.end.to_point(&display_map);
2999 }
3000 } else {
3001 head = position.to_point(&display_map);
3002 }
3003
3004 if head <= original_buffer_range.start {
3005 tail = original_buffer_range.end;
3006 } else {
3007 tail = original_buffer_range.start;
3008 }
3009 }
3010 SelectMode::Line(original_range) => {
3011 let original_range = original_range.to_point(&display_map.buffer_snapshot);
3012
3013 let position = display_map
3014 .clip_point(position, Bias::Left)
3015 .to_point(&display_map);
3016 let line_start = display_map.prev_line_boundary(position).0;
3017 let next_line_start = buffer.clip_point(
3018 display_map.next_line_boundary(position).0 + Point::new(1, 0),
3019 Bias::Left,
3020 );
3021
3022 if line_start < original_range.start {
3023 head = line_start
3024 } else {
3025 head = next_line_start
3026 }
3027
3028 if head <= original_range.start {
3029 tail = original_range.end;
3030 } else {
3031 tail = original_range.start;
3032 }
3033 }
3034 SelectMode::All => {
3035 return;
3036 }
3037 };
3038
3039 if head < tail {
3040 pending.start = buffer.anchor_before(head);
3041 pending.end = buffer.anchor_before(tail);
3042 pending.reversed = true;
3043 } else {
3044 pending.start = buffer.anchor_before(tail);
3045 pending.end = buffer.anchor_before(head);
3046 pending.reversed = false;
3047 }
3048
3049 self.change_selections(None, cx, |s| {
3050 s.set_pending(pending, mode);
3051 });
3052 } else {
3053 log::error!("update_selection dispatched with no pending selection");
3054 return;
3055 }
3056
3057 self.apply_scroll_delta(scroll_delta, cx);
3058 cx.notify();
3059 }
3060
3061 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
3062 self.columnar_selection_tail.take();
3063 if self.selections.pending_anchor().is_some() {
3064 let selections = self.selections.all::<usize>(cx);
3065 self.change_selections(None, cx, |s| {
3066 s.select(selections);
3067 s.clear_pending();
3068 });
3069 }
3070 }
3071
3072 fn select_columns(
3073 &mut self,
3074 tail: DisplayPoint,
3075 head: DisplayPoint,
3076 goal_column: u32,
3077 display_map: &DisplaySnapshot,
3078 cx: &mut ViewContext<Self>,
3079 ) {
3080 let start_row = cmp::min(tail.row(), head.row());
3081 let end_row = cmp::max(tail.row(), head.row());
3082 let start_column = cmp::min(tail.column(), goal_column);
3083 let end_column = cmp::max(tail.column(), goal_column);
3084 let reversed = start_column < tail.column();
3085
3086 let selection_ranges = (start_row.0..=end_row.0)
3087 .map(DisplayRow)
3088 .filter_map(|row| {
3089 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
3090 let start = display_map
3091 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
3092 .to_point(display_map);
3093 let end = display_map
3094 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
3095 .to_point(display_map);
3096 if reversed {
3097 Some(end..start)
3098 } else {
3099 Some(start..end)
3100 }
3101 } else {
3102 None
3103 }
3104 })
3105 .collect::<Vec<_>>();
3106
3107 self.change_selections(None, cx, |s| {
3108 s.select_ranges(selection_ranges);
3109 });
3110 cx.notify();
3111 }
3112
3113 pub fn has_pending_nonempty_selection(&self) -> bool {
3114 let pending_nonempty_selection = match self.selections.pending_anchor() {
3115 Some(Selection { start, end, .. }) => start != end,
3116 None => false,
3117 };
3118
3119 pending_nonempty_selection
3120 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
3121 }
3122
3123 pub fn has_pending_selection(&self) -> bool {
3124 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
3125 }
3126
3127 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
3128 if self.clear_expanded_diff_hunks(cx) {
3129 cx.notify();
3130 return;
3131 }
3132 if self.dismiss_menus_and_popups(true, cx) {
3133 return;
3134 }
3135
3136 if self.mode == EditorMode::Full
3137 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3138 {
3139 return;
3140 }
3141
3142 cx.propagate();
3143 }
3144
3145 pub fn dismiss_menus_and_popups(
3146 &mut self,
3147 should_report_inline_completion_event: bool,
3148 cx: &mut ViewContext<Self>,
3149 ) -> bool {
3150 if self.take_rename(false, cx).is_some() {
3151 return true;
3152 }
3153
3154 if hide_hover(self, cx) {
3155 return true;
3156 }
3157
3158 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3159 return true;
3160 }
3161
3162 if self.hide_context_menu(cx).is_some() {
3163 return true;
3164 }
3165
3166 if self.mouse_context_menu.take().is_some() {
3167 return true;
3168 }
3169
3170 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3171 return true;
3172 }
3173
3174 if self.snippet_stack.pop().is_some() {
3175 return true;
3176 }
3177
3178 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3179 self.dismiss_diagnostics(cx);
3180 return true;
3181 }
3182
3183 false
3184 }
3185
3186 fn linked_editing_ranges_for(
3187 &self,
3188 selection: Range<text::Anchor>,
3189 cx: &AppContext,
3190 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3191 if self.linked_edit_ranges.is_empty() {
3192 return None;
3193 }
3194 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3195 selection.end.buffer_id.and_then(|end_buffer_id| {
3196 if selection.start.buffer_id != Some(end_buffer_id) {
3197 return None;
3198 }
3199 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3200 let snapshot = buffer.read(cx).snapshot();
3201 self.linked_edit_ranges
3202 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3203 .map(|ranges| (ranges, snapshot, buffer))
3204 })?;
3205 use text::ToOffset as TO;
3206 // find offset from the start of current range to current cursor position
3207 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3208
3209 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3210 let start_difference = start_offset - start_byte_offset;
3211 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3212 let end_difference = end_offset - start_byte_offset;
3213 // Current range has associated linked ranges.
3214 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3215 for range in linked_ranges.iter() {
3216 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3217 let end_offset = start_offset + end_difference;
3218 let start_offset = start_offset + start_difference;
3219 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3220 continue;
3221 }
3222 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3223 if s.start.buffer_id != selection.start.buffer_id
3224 || s.end.buffer_id != selection.end.buffer_id
3225 {
3226 return false;
3227 }
3228 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3229 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3230 }) {
3231 continue;
3232 }
3233 let start = buffer_snapshot.anchor_after(start_offset);
3234 let end = buffer_snapshot.anchor_after(end_offset);
3235 linked_edits
3236 .entry(buffer.clone())
3237 .or_default()
3238 .push(start..end);
3239 }
3240 Some(linked_edits)
3241 }
3242
3243 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3244 let text: Arc<str> = text.into();
3245
3246 if self.read_only(cx) {
3247 return;
3248 }
3249
3250 let selections = self.selections.all_adjusted(cx);
3251 let mut bracket_inserted = false;
3252 let mut edits = Vec::new();
3253 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3254 let mut new_selections = Vec::with_capacity(selections.len());
3255 let mut new_autoclose_regions = Vec::new();
3256 let snapshot = self.buffer.read(cx).read(cx);
3257
3258 for (selection, autoclose_region) in
3259 self.selections_with_autoclose_regions(selections, &snapshot)
3260 {
3261 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3262 // Determine if the inserted text matches the opening or closing
3263 // bracket of any of this language's bracket pairs.
3264 let mut bracket_pair = None;
3265 let mut is_bracket_pair_start = false;
3266 let mut is_bracket_pair_end = false;
3267 if !text.is_empty() {
3268 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3269 // and they are removing the character that triggered IME popup.
3270 for (pair, enabled) in scope.brackets() {
3271 if !pair.close && !pair.surround {
3272 continue;
3273 }
3274
3275 if enabled && pair.start.ends_with(text.as_ref()) {
3276 let prefix_len = pair.start.len() - text.len();
3277 let preceding_text_matches_prefix = prefix_len == 0
3278 || (selection.start.column >= (prefix_len as u32)
3279 && snapshot.contains_str_at(
3280 Point::new(
3281 selection.start.row,
3282 selection.start.column - (prefix_len as u32),
3283 ),
3284 &pair.start[..prefix_len],
3285 ));
3286 if preceding_text_matches_prefix {
3287 bracket_pair = Some(pair.clone());
3288 is_bracket_pair_start = true;
3289 break;
3290 }
3291 }
3292 if pair.end.as_str() == text.as_ref() {
3293 bracket_pair = Some(pair.clone());
3294 is_bracket_pair_end = true;
3295 break;
3296 }
3297 }
3298 }
3299
3300 if let Some(bracket_pair) = bracket_pair {
3301 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3302 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3303 let auto_surround =
3304 self.use_auto_surround && snapshot_settings.use_auto_surround;
3305 if selection.is_empty() {
3306 if is_bracket_pair_start {
3307 // If the inserted text is a suffix of an opening bracket and the
3308 // selection is preceded by the rest of the opening bracket, then
3309 // insert the closing bracket.
3310 let following_text_allows_autoclose = snapshot
3311 .chars_at(selection.start)
3312 .next()
3313 .map_or(true, |c| scope.should_autoclose_before(c));
3314
3315 let is_closing_quote = if bracket_pair.end == bracket_pair.start
3316 && bracket_pair.start.len() == 1
3317 {
3318 let target = bracket_pair.start.chars().next().unwrap();
3319 let current_line_count = snapshot
3320 .reversed_chars_at(selection.start)
3321 .take_while(|&c| c != '\n')
3322 .filter(|&c| c == target)
3323 .count();
3324 current_line_count % 2 == 1
3325 } else {
3326 false
3327 };
3328
3329 if autoclose
3330 && bracket_pair.close
3331 && following_text_allows_autoclose
3332 && !is_closing_quote
3333 {
3334 let anchor = snapshot.anchor_before(selection.end);
3335 new_selections.push((selection.map(|_| anchor), text.len()));
3336 new_autoclose_regions.push((
3337 anchor,
3338 text.len(),
3339 selection.id,
3340 bracket_pair.clone(),
3341 ));
3342 edits.push((
3343 selection.range(),
3344 format!("{}{}", text, bracket_pair.end).into(),
3345 ));
3346 bracket_inserted = true;
3347 continue;
3348 }
3349 }
3350
3351 if let Some(region) = autoclose_region {
3352 // If the selection is followed by an auto-inserted closing bracket,
3353 // then don't insert that closing bracket again; just move the selection
3354 // past the closing bracket.
3355 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3356 && text.as_ref() == region.pair.end.as_str();
3357 if should_skip {
3358 let anchor = snapshot.anchor_after(selection.end);
3359 new_selections
3360 .push((selection.map(|_| anchor), region.pair.end.len()));
3361 continue;
3362 }
3363 }
3364
3365 let always_treat_brackets_as_autoclosed = snapshot
3366 .settings_at(selection.start, cx)
3367 .always_treat_brackets_as_autoclosed;
3368 if always_treat_brackets_as_autoclosed
3369 && is_bracket_pair_end
3370 && snapshot.contains_str_at(selection.end, text.as_ref())
3371 {
3372 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3373 // and the inserted text is a closing bracket and the selection is followed
3374 // by the closing bracket then move the selection past the closing bracket.
3375 let anchor = snapshot.anchor_after(selection.end);
3376 new_selections.push((selection.map(|_| anchor), text.len()));
3377 continue;
3378 }
3379 }
3380 // If an opening bracket is 1 character long and is typed while
3381 // text is selected, then surround that text with the bracket pair.
3382 else if auto_surround
3383 && bracket_pair.surround
3384 && is_bracket_pair_start
3385 && bracket_pair.start.chars().count() == 1
3386 {
3387 edits.push((selection.start..selection.start, text.clone()));
3388 edits.push((
3389 selection.end..selection.end,
3390 bracket_pair.end.as_str().into(),
3391 ));
3392 bracket_inserted = true;
3393 new_selections.push((
3394 Selection {
3395 id: selection.id,
3396 start: snapshot.anchor_after(selection.start),
3397 end: snapshot.anchor_before(selection.end),
3398 reversed: selection.reversed,
3399 goal: selection.goal,
3400 },
3401 0,
3402 ));
3403 continue;
3404 }
3405 }
3406 }
3407
3408 if self.auto_replace_emoji_shortcode
3409 && selection.is_empty()
3410 && text.as_ref().ends_with(':')
3411 {
3412 if let Some(possible_emoji_short_code) =
3413 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3414 {
3415 if !possible_emoji_short_code.is_empty() {
3416 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3417 let emoji_shortcode_start = Point::new(
3418 selection.start.row,
3419 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3420 );
3421
3422 // Remove shortcode from buffer
3423 edits.push((
3424 emoji_shortcode_start..selection.start,
3425 "".to_string().into(),
3426 ));
3427 new_selections.push((
3428 Selection {
3429 id: selection.id,
3430 start: snapshot.anchor_after(emoji_shortcode_start),
3431 end: snapshot.anchor_before(selection.start),
3432 reversed: selection.reversed,
3433 goal: selection.goal,
3434 },
3435 0,
3436 ));
3437
3438 // Insert emoji
3439 let selection_start_anchor = snapshot.anchor_after(selection.start);
3440 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3441 edits.push((selection.start..selection.end, emoji.to_string().into()));
3442
3443 continue;
3444 }
3445 }
3446 }
3447 }
3448
3449 // If not handling any auto-close operation, then just replace the selected
3450 // text with the given input and move the selection to the end of the
3451 // newly inserted text.
3452 let anchor = snapshot.anchor_after(selection.end);
3453 if !self.linked_edit_ranges.is_empty() {
3454 let start_anchor = snapshot.anchor_before(selection.start);
3455
3456 let is_word_char = text.chars().next().map_or(true, |char| {
3457 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3458 classifier.is_word(char)
3459 });
3460
3461 if is_word_char {
3462 if let Some(ranges) = self
3463 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3464 {
3465 for (buffer, edits) in ranges {
3466 linked_edits
3467 .entry(buffer.clone())
3468 .or_default()
3469 .extend(edits.into_iter().map(|range| (range, text.clone())));
3470 }
3471 }
3472 }
3473 }
3474
3475 new_selections.push((selection.map(|_| anchor), 0));
3476 edits.push((selection.start..selection.end, text.clone()));
3477 }
3478
3479 drop(snapshot);
3480
3481 self.transact(cx, |this, cx| {
3482 this.buffer.update(cx, |buffer, cx| {
3483 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3484 });
3485 for (buffer, edits) in linked_edits {
3486 buffer.update(cx, |buffer, cx| {
3487 let snapshot = buffer.snapshot();
3488 let edits = edits
3489 .into_iter()
3490 .map(|(range, text)| {
3491 use text::ToPoint as TP;
3492 let end_point = TP::to_point(&range.end, &snapshot);
3493 let start_point = TP::to_point(&range.start, &snapshot);
3494 (start_point..end_point, text)
3495 })
3496 .sorted_by_key(|(range, _)| range.start)
3497 .collect::<Vec<_>>();
3498 buffer.edit(edits, None, cx);
3499 })
3500 }
3501 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3502 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3503 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
3504 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
3505 .zip(new_selection_deltas)
3506 .map(|(selection, delta)| Selection {
3507 id: selection.id,
3508 start: selection.start + delta,
3509 end: selection.end + delta,
3510 reversed: selection.reversed,
3511 goal: SelectionGoal::None,
3512 })
3513 .collect::<Vec<_>>();
3514
3515 let mut i = 0;
3516 for (position, delta, selection_id, pair) in new_autoclose_regions {
3517 let position = position.to_offset(&map.buffer_snapshot) + delta;
3518 let start = map.buffer_snapshot.anchor_before(position);
3519 let end = map.buffer_snapshot.anchor_after(position);
3520 while let Some(existing_state) = this.autoclose_regions.get(i) {
3521 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
3522 Ordering::Less => i += 1,
3523 Ordering::Greater => break,
3524 Ordering::Equal => {
3525 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
3526 Ordering::Less => i += 1,
3527 Ordering::Equal => break,
3528 Ordering::Greater => break,
3529 }
3530 }
3531 }
3532 }
3533 this.autoclose_regions.insert(
3534 i,
3535 AutocloseRegion {
3536 selection_id,
3537 range: start..end,
3538 pair,
3539 },
3540 );
3541 }
3542
3543 let had_active_inline_completion = this.has_active_inline_completion(cx);
3544 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3545 s.select(new_selections)
3546 });
3547
3548 if !bracket_inserted {
3549 if let Some(on_type_format_task) =
3550 this.trigger_on_type_formatting(text.to_string(), cx)
3551 {
3552 on_type_format_task.detach_and_log_err(cx);
3553 }
3554 }
3555
3556 let editor_settings = EditorSettings::get_global(cx);
3557 if bracket_inserted
3558 && (editor_settings.auto_signature_help
3559 || editor_settings.show_signature_help_after_edits)
3560 {
3561 this.show_signature_help(&ShowSignatureHelp, cx);
3562 }
3563
3564 let trigger_in_words = !had_active_inline_completion;
3565 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3566 linked_editing_ranges::refresh_linked_ranges(this, cx);
3567 this.refresh_inline_completion(true, false, cx);
3568 });
3569 }
3570
3571 fn find_possible_emoji_shortcode_at_position(
3572 snapshot: &MultiBufferSnapshot,
3573 position: Point,
3574 ) -> Option<String> {
3575 let mut chars = Vec::new();
3576 let mut found_colon = false;
3577 for char in snapshot.reversed_chars_at(position).take(100) {
3578 // Found a possible emoji shortcode in the middle of the buffer
3579 if found_colon {
3580 if char.is_whitespace() {
3581 chars.reverse();
3582 return Some(chars.iter().collect());
3583 }
3584 // If the previous character is not a whitespace, we are in the middle of a word
3585 // and we only want to complete the shortcode if the word is made up of other emojis
3586 let mut containing_word = String::new();
3587 for ch in snapshot
3588 .reversed_chars_at(position)
3589 .skip(chars.len() + 1)
3590 .take(100)
3591 {
3592 if ch.is_whitespace() {
3593 break;
3594 }
3595 containing_word.push(ch);
3596 }
3597 let containing_word = containing_word.chars().rev().collect::<String>();
3598 if util::word_consists_of_emojis(containing_word.as_str()) {
3599 chars.reverse();
3600 return Some(chars.iter().collect());
3601 }
3602 }
3603
3604 if char.is_whitespace() || !char.is_ascii() {
3605 return None;
3606 }
3607 if char == ':' {
3608 found_colon = true;
3609 } else {
3610 chars.push(char);
3611 }
3612 }
3613 // Found a possible emoji shortcode at the beginning of the buffer
3614 chars.reverse();
3615 Some(chars.iter().collect())
3616 }
3617
3618 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3619 self.transact(cx, |this, cx| {
3620 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3621 let selections = this.selections.all::<usize>(cx);
3622 let multi_buffer = this.buffer.read(cx);
3623 let buffer = multi_buffer.snapshot(cx);
3624 selections
3625 .iter()
3626 .map(|selection| {
3627 let start_point = selection.start.to_point(&buffer);
3628 let mut indent =
3629 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3630 indent.len = cmp::min(indent.len, start_point.column);
3631 let start = selection.start;
3632 let end = selection.end;
3633 let selection_is_empty = start == end;
3634 let language_scope = buffer.language_scope_at(start);
3635 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3636 &language_scope
3637 {
3638 let leading_whitespace_len = buffer
3639 .reversed_chars_at(start)
3640 .take_while(|c| c.is_whitespace() && *c != '\n')
3641 .map(|c| c.len_utf8())
3642 .sum::<usize>();
3643
3644 let trailing_whitespace_len = buffer
3645 .chars_at(end)
3646 .take_while(|c| c.is_whitespace() && *c != '\n')
3647 .map(|c| c.len_utf8())
3648 .sum::<usize>();
3649
3650 let insert_extra_newline =
3651 language.brackets().any(|(pair, enabled)| {
3652 let pair_start = pair.start.trim_end();
3653 let pair_end = pair.end.trim_start();
3654
3655 enabled
3656 && pair.newline
3657 && buffer.contains_str_at(
3658 end + trailing_whitespace_len,
3659 pair_end,
3660 )
3661 && buffer.contains_str_at(
3662 (start - leading_whitespace_len)
3663 .saturating_sub(pair_start.len()),
3664 pair_start,
3665 )
3666 });
3667
3668 // Comment extension on newline is allowed only for cursor selections
3669 let comment_delimiter = maybe!({
3670 if !selection_is_empty {
3671 return None;
3672 }
3673
3674 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3675 return None;
3676 }
3677
3678 let delimiters = language.line_comment_prefixes();
3679 let max_len_of_delimiter =
3680 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3681 let (snapshot, range) =
3682 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3683
3684 let mut index_of_first_non_whitespace = 0;
3685 let comment_candidate = snapshot
3686 .chars_for_range(range)
3687 .skip_while(|c| {
3688 let should_skip = c.is_whitespace();
3689 if should_skip {
3690 index_of_first_non_whitespace += 1;
3691 }
3692 should_skip
3693 })
3694 .take(max_len_of_delimiter)
3695 .collect::<String>();
3696 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3697 comment_candidate.starts_with(comment_prefix.as_ref())
3698 })?;
3699 let cursor_is_placed_after_comment_marker =
3700 index_of_first_non_whitespace + comment_prefix.len()
3701 <= start_point.column as usize;
3702 if cursor_is_placed_after_comment_marker {
3703 Some(comment_prefix.clone())
3704 } else {
3705 None
3706 }
3707 });
3708 (comment_delimiter, insert_extra_newline)
3709 } else {
3710 (None, false)
3711 };
3712
3713 let capacity_for_delimiter = comment_delimiter
3714 .as_deref()
3715 .map(str::len)
3716 .unwrap_or_default();
3717 let mut new_text =
3718 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3719 new_text.push('\n');
3720 new_text.extend(indent.chars());
3721 if let Some(delimiter) = &comment_delimiter {
3722 new_text.push_str(delimiter);
3723 }
3724 if insert_extra_newline {
3725 new_text = new_text.repeat(2);
3726 }
3727
3728 let anchor = buffer.anchor_after(end);
3729 let new_selection = selection.map(|_| anchor);
3730 (
3731 (start..end, new_text),
3732 (insert_extra_newline, new_selection),
3733 )
3734 })
3735 .unzip()
3736 };
3737
3738 this.edit_with_autoindent(edits, cx);
3739 let buffer = this.buffer.read(cx).snapshot(cx);
3740 let new_selections = selection_fixup_info
3741 .into_iter()
3742 .map(|(extra_newline_inserted, new_selection)| {
3743 let mut cursor = new_selection.end.to_point(&buffer);
3744 if extra_newline_inserted {
3745 cursor.row -= 1;
3746 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3747 }
3748 new_selection.map(|_| cursor)
3749 })
3750 .collect();
3751
3752 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3753 this.refresh_inline_completion(true, false, cx);
3754 });
3755 }
3756
3757 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3758 let buffer = self.buffer.read(cx);
3759 let snapshot = buffer.snapshot(cx);
3760
3761 let mut edits = Vec::new();
3762 let mut rows = Vec::new();
3763
3764 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3765 let cursor = selection.head();
3766 let row = cursor.row;
3767
3768 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3769
3770 let newline = "\n".to_string();
3771 edits.push((start_of_line..start_of_line, newline));
3772
3773 rows.push(row + rows_inserted as u32);
3774 }
3775
3776 self.transact(cx, |editor, cx| {
3777 editor.edit(edits, cx);
3778
3779 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3780 let mut index = 0;
3781 s.move_cursors_with(|map, _, _| {
3782 let row = rows[index];
3783 index += 1;
3784
3785 let point = Point::new(row, 0);
3786 let boundary = map.next_line_boundary(point).1;
3787 let clipped = map.clip_point(boundary, Bias::Left);
3788
3789 (clipped, SelectionGoal::None)
3790 });
3791 });
3792
3793 let mut indent_edits = Vec::new();
3794 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3795 for row in rows {
3796 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3797 for (row, indent) in indents {
3798 if indent.len == 0 {
3799 continue;
3800 }
3801
3802 let text = match indent.kind {
3803 IndentKind::Space => " ".repeat(indent.len as usize),
3804 IndentKind::Tab => "\t".repeat(indent.len as usize),
3805 };
3806 let point = Point::new(row.0, 0);
3807 indent_edits.push((point..point, text));
3808 }
3809 }
3810 editor.edit(indent_edits, cx);
3811 });
3812 }
3813
3814 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3815 let buffer = self.buffer.read(cx);
3816 let snapshot = buffer.snapshot(cx);
3817
3818 let mut edits = Vec::new();
3819 let mut rows = Vec::new();
3820 let mut rows_inserted = 0;
3821
3822 for selection in self.selections.all_adjusted(cx) {
3823 let cursor = selection.head();
3824 let row = cursor.row;
3825
3826 let point = Point::new(row + 1, 0);
3827 let start_of_line = snapshot.clip_point(point, Bias::Left);
3828
3829 let newline = "\n".to_string();
3830 edits.push((start_of_line..start_of_line, newline));
3831
3832 rows_inserted += 1;
3833 rows.push(row + rows_inserted);
3834 }
3835
3836 self.transact(cx, |editor, cx| {
3837 editor.edit(edits, cx);
3838
3839 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3840 let mut index = 0;
3841 s.move_cursors_with(|map, _, _| {
3842 let row = rows[index];
3843 index += 1;
3844
3845 let point = Point::new(row, 0);
3846 let boundary = map.next_line_boundary(point).1;
3847 let clipped = map.clip_point(boundary, Bias::Left);
3848
3849 (clipped, SelectionGoal::None)
3850 });
3851 });
3852
3853 let mut indent_edits = Vec::new();
3854 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3855 for row in rows {
3856 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3857 for (row, indent) in indents {
3858 if indent.len == 0 {
3859 continue;
3860 }
3861
3862 let text = match indent.kind {
3863 IndentKind::Space => " ".repeat(indent.len as usize),
3864 IndentKind::Tab => "\t".repeat(indent.len as usize),
3865 };
3866 let point = Point::new(row.0, 0);
3867 indent_edits.push((point..point, text));
3868 }
3869 }
3870 editor.edit(indent_edits, cx);
3871 });
3872 }
3873
3874 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3875 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3876 original_indent_columns: Vec::new(),
3877 });
3878 self.insert_with_autoindent_mode(text, autoindent, cx);
3879 }
3880
3881 fn insert_with_autoindent_mode(
3882 &mut self,
3883 text: &str,
3884 autoindent_mode: Option<AutoindentMode>,
3885 cx: &mut ViewContext<Self>,
3886 ) {
3887 if self.read_only(cx) {
3888 return;
3889 }
3890
3891 let text: Arc<str> = text.into();
3892 self.transact(cx, |this, cx| {
3893 let old_selections = this.selections.all_adjusted(cx);
3894 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3895 let anchors = {
3896 let snapshot = buffer.read(cx);
3897 old_selections
3898 .iter()
3899 .map(|s| {
3900 let anchor = snapshot.anchor_after(s.head());
3901 s.map(|_| anchor)
3902 })
3903 .collect::<Vec<_>>()
3904 };
3905 buffer.edit(
3906 old_selections
3907 .iter()
3908 .map(|s| (s.start..s.end, text.clone())),
3909 autoindent_mode,
3910 cx,
3911 );
3912 anchors
3913 });
3914
3915 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3916 s.select_anchors(selection_anchors);
3917 })
3918 });
3919 }
3920
3921 fn trigger_completion_on_input(
3922 &mut self,
3923 text: &str,
3924 trigger_in_words: bool,
3925 cx: &mut ViewContext<Self>,
3926 ) {
3927 if self.is_completion_trigger(text, trigger_in_words, cx) {
3928 self.show_completions(
3929 &ShowCompletions {
3930 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3931 },
3932 cx,
3933 );
3934 } else {
3935 self.hide_context_menu(cx);
3936 }
3937 }
3938
3939 fn is_completion_trigger(
3940 &self,
3941 text: &str,
3942 trigger_in_words: bool,
3943 cx: &mut ViewContext<Self>,
3944 ) -> bool {
3945 let position = self.selections.newest_anchor().head();
3946 let multibuffer = self.buffer.read(cx);
3947 let Some(buffer) = position
3948 .buffer_id
3949 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3950 else {
3951 return false;
3952 };
3953
3954 if let Some(completion_provider) = &self.completion_provider {
3955 completion_provider.is_completion_trigger(
3956 &buffer,
3957 position.text_anchor,
3958 text,
3959 trigger_in_words,
3960 cx,
3961 )
3962 } else {
3963 false
3964 }
3965 }
3966
3967 /// If any empty selections is touching the start of its innermost containing autoclose
3968 /// region, expand it to select the brackets.
3969 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3970 let selections = self.selections.all::<usize>(cx);
3971 let buffer = self.buffer.read(cx).read(cx);
3972 let new_selections = self
3973 .selections_with_autoclose_regions(selections, &buffer)
3974 .map(|(mut selection, region)| {
3975 if !selection.is_empty() {
3976 return selection;
3977 }
3978
3979 if let Some(region) = region {
3980 let mut range = region.range.to_offset(&buffer);
3981 if selection.start == range.start && range.start >= region.pair.start.len() {
3982 range.start -= region.pair.start.len();
3983 if buffer.contains_str_at(range.start, ®ion.pair.start)
3984 && buffer.contains_str_at(range.end, ®ion.pair.end)
3985 {
3986 range.end += region.pair.end.len();
3987 selection.start = range.start;
3988 selection.end = range.end;
3989
3990 return selection;
3991 }
3992 }
3993 }
3994
3995 let always_treat_brackets_as_autoclosed = buffer
3996 .settings_at(selection.start, cx)
3997 .always_treat_brackets_as_autoclosed;
3998
3999 if !always_treat_brackets_as_autoclosed {
4000 return selection;
4001 }
4002
4003 if let Some(scope) = buffer.language_scope_at(selection.start) {
4004 for (pair, enabled) in scope.brackets() {
4005 if !enabled || !pair.close {
4006 continue;
4007 }
4008
4009 if buffer.contains_str_at(selection.start, &pair.end) {
4010 let pair_start_len = pair.start.len();
4011 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
4012 {
4013 selection.start -= pair_start_len;
4014 selection.end += pair.end.len();
4015
4016 return selection;
4017 }
4018 }
4019 }
4020 }
4021
4022 selection
4023 })
4024 .collect();
4025
4026 drop(buffer);
4027 self.change_selections(None, cx, |selections| selections.select(new_selections));
4028 }
4029
4030 /// Iterate the given selections, and for each one, find the smallest surrounding
4031 /// autoclose region. This uses the ordering of the selections and the autoclose
4032 /// regions to avoid repeated comparisons.
4033 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
4034 &'a self,
4035 selections: impl IntoIterator<Item = Selection<D>>,
4036 buffer: &'a MultiBufferSnapshot,
4037 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
4038 let mut i = 0;
4039 let mut regions = self.autoclose_regions.as_slice();
4040 selections.into_iter().map(move |selection| {
4041 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
4042
4043 let mut enclosing = None;
4044 while let Some(pair_state) = regions.get(i) {
4045 if pair_state.range.end.to_offset(buffer) < range.start {
4046 regions = ®ions[i + 1..];
4047 i = 0;
4048 } else if pair_state.range.start.to_offset(buffer) > range.end {
4049 break;
4050 } else {
4051 if pair_state.selection_id == selection.id {
4052 enclosing = Some(pair_state);
4053 }
4054 i += 1;
4055 }
4056 }
4057
4058 (selection, enclosing)
4059 })
4060 }
4061
4062 /// Remove any autoclose regions that no longer contain their selection.
4063 fn invalidate_autoclose_regions(
4064 &mut self,
4065 mut selections: &[Selection<Anchor>],
4066 buffer: &MultiBufferSnapshot,
4067 ) {
4068 self.autoclose_regions.retain(|state| {
4069 let mut i = 0;
4070 while let Some(selection) = selections.get(i) {
4071 if selection.end.cmp(&state.range.start, buffer).is_lt() {
4072 selections = &selections[1..];
4073 continue;
4074 }
4075 if selection.start.cmp(&state.range.end, buffer).is_gt() {
4076 break;
4077 }
4078 if selection.id == state.selection_id {
4079 return true;
4080 } else {
4081 i += 1;
4082 }
4083 }
4084 false
4085 });
4086 }
4087
4088 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
4089 let offset = position.to_offset(buffer);
4090 let (word_range, kind) = buffer.surrounding_word(offset, true);
4091 if offset > word_range.start && kind == Some(CharKind::Word) {
4092 Some(
4093 buffer
4094 .text_for_range(word_range.start..offset)
4095 .collect::<String>(),
4096 )
4097 } else {
4098 None
4099 }
4100 }
4101
4102 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
4103 self.refresh_inlay_hints(
4104 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
4105 cx,
4106 );
4107 }
4108
4109 pub fn inlay_hints_enabled(&self) -> bool {
4110 self.inlay_hint_cache.enabled
4111 }
4112
4113 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
4114 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
4115 return;
4116 }
4117
4118 let reason_description = reason.description();
4119 let ignore_debounce = matches!(
4120 reason,
4121 InlayHintRefreshReason::SettingsChange(_)
4122 | InlayHintRefreshReason::Toggle(_)
4123 | InlayHintRefreshReason::ExcerptsRemoved(_)
4124 );
4125 let (invalidate_cache, required_languages) = match reason {
4126 InlayHintRefreshReason::Toggle(enabled) => {
4127 self.inlay_hint_cache.enabled = enabled;
4128 if enabled {
4129 (InvalidationStrategy::RefreshRequested, None)
4130 } else {
4131 self.inlay_hint_cache.clear();
4132 self.splice_inlays(
4133 self.visible_inlay_hints(cx)
4134 .iter()
4135 .map(|inlay| inlay.id)
4136 .collect(),
4137 Vec::new(),
4138 cx,
4139 );
4140 return;
4141 }
4142 }
4143 InlayHintRefreshReason::SettingsChange(new_settings) => {
4144 match self.inlay_hint_cache.update_settings(
4145 &self.buffer,
4146 new_settings,
4147 self.visible_inlay_hints(cx),
4148 cx,
4149 ) {
4150 ControlFlow::Break(Some(InlaySplice {
4151 to_remove,
4152 to_insert,
4153 })) => {
4154 self.splice_inlays(to_remove, to_insert, cx);
4155 return;
4156 }
4157 ControlFlow::Break(None) => return,
4158 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4159 }
4160 }
4161 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4162 if let Some(InlaySplice {
4163 to_remove,
4164 to_insert,
4165 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4166 {
4167 self.splice_inlays(to_remove, to_insert, cx);
4168 }
4169 return;
4170 }
4171 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4172 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4173 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4174 }
4175 InlayHintRefreshReason::RefreshRequested => {
4176 (InvalidationStrategy::RefreshRequested, None)
4177 }
4178 };
4179
4180 if let Some(InlaySplice {
4181 to_remove,
4182 to_insert,
4183 }) = self.inlay_hint_cache.spawn_hint_refresh(
4184 reason_description,
4185 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4186 invalidate_cache,
4187 ignore_debounce,
4188 cx,
4189 ) {
4190 self.splice_inlays(to_remove, to_insert, cx);
4191 }
4192 }
4193
4194 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4195 self.display_map
4196 .read(cx)
4197 .current_inlays()
4198 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4199 .cloned()
4200 .collect()
4201 }
4202
4203 pub fn excerpts_for_inlay_hints_query(
4204 &self,
4205 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4206 cx: &mut ViewContext<Editor>,
4207 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4208 let Some(project) = self.project.as_ref() else {
4209 return HashMap::default();
4210 };
4211 let project = project.read(cx);
4212 let multi_buffer = self.buffer().read(cx);
4213 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4214 let multi_buffer_visible_start = self
4215 .scroll_manager
4216 .anchor()
4217 .anchor
4218 .to_point(&multi_buffer_snapshot);
4219 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4220 multi_buffer_visible_start
4221 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4222 Bias::Left,
4223 );
4224 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4225 multi_buffer
4226 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4227 .into_iter()
4228 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4229 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4230 let buffer = buffer_handle.read(cx);
4231 let buffer_file = project::File::from_dyn(buffer.file())?;
4232 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4233 let worktree_entry = buffer_worktree
4234 .read(cx)
4235 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4236 if worktree_entry.is_ignored {
4237 return None;
4238 }
4239
4240 let language = buffer.language()?;
4241 if let Some(restrict_to_languages) = restrict_to_languages {
4242 if !restrict_to_languages.contains(language) {
4243 return None;
4244 }
4245 }
4246 Some((
4247 excerpt_id,
4248 (
4249 buffer_handle,
4250 buffer.version().clone(),
4251 excerpt_visible_range,
4252 ),
4253 ))
4254 })
4255 .collect()
4256 }
4257
4258 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4259 TextLayoutDetails {
4260 text_system: cx.text_system().clone(),
4261 editor_style: self.style.clone().unwrap(),
4262 rem_size: cx.rem_size(),
4263 scroll_anchor: self.scroll_manager.anchor(),
4264 visible_rows: self.visible_line_count(),
4265 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4266 }
4267 }
4268
4269 fn splice_inlays(
4270 &self,
4271 to_remove: Vec<InlayId>,
4272 to_insert: Vec<Inlay>,
4273 cx: &mut ViewContext<Self>,
4274 ) {
4275 self.display_map.update(cx, |display_map, cx| {
4276 display_map.splice_inlays(to_remove, to_insert, cx);
4277 });
4278 cx.notify();
4279 }
4280
4281 fn trigger_on_type_formatting(
4282 &self,
4283 input: String,
4284 cx: &mut ViewContext<Self>,
4285 ) -> Option<Task<Result<()>>> {
4286 if input.len() != 1 {
4287 return None;
4288 }
4289
4290 let project = self.project.as_ref()?;
4291 let position = self.selections.newest_anchor().head();
4292 let (buffer, buffer_position) = self
4293 .buffer
4294 .read(cx)
4295 .text_anchor_for_position(position, cx)?;
4296
4297 let settings = language_settings::language_settings(
4298 buffer
4299 .read(cx)
4300 .language_at(buffer_position)
4301 .map(|l| l.name()),
4302 buffer.read(cx).file(),
4303 cx,
4304 );
4305 if !settings.use_on_type_format {
4306 return None;
4307 }
4308
4309 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4310 // hence we do LSP request & edit on host side only — add formats to host's history.
4311 let push_to_lsp_host_history = true;
4312 // If this is not the host, append its history with new edits.
4313 let push_to_client_history = project.read(cx).is_via_collab();
4314
4315 let on_type_formatting = project.update(cx, |project, cx| {
4316 project.on_type_format(
4317 buffer.clone(),
4318 buffer_position,
4319 input,
4320 push_to_lsp_host_history,
4321 cx,
4322 )
4323 });
4324 Some(cx.spawn(|editor, mut cx| async move {
4325 if let Some(transaction) = on_type_formatting.await? {
4326 if push_to_client_history {
4327 buffer
4328 .update(&mut cx, |buffer, _| {
4329 buffer.push_transaction(transaction, Instant::now());
4330 })
4331 .ok();
4332 }
4333 editor.update(&mut cx, |editor, cx| {
4334 editor.refresh_document_highlights(cx);
4335 })?;
4336 }
4337 Ok(())
4338 }))
4339 }
4340
4341 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4342 if self.pending_rename.is_some() {
4343 return;
4344 }
4345
4346 let Some(provider) = self.completion_provider.as_ref() else {
4347 return;
4348 };
4349
4350 let position = self.selections.newest_anchor().head();
4351 let (buffer, buffer_position) =
4352 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4353 output
4354 } else {
4355 return;
4356 };
4357
4358 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4359 let is_followup_invoke = {
4360 let context_menu_state = self.context_menu.read();
4361 matches!(
4362 context_menu_state.deref(),
4363 Some(ContextMenu::Completions(_))
4364 )
4365 };
4366 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4367 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4368 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4369 CompletionTriggerKind::TRIGGER_CHARACTER
4370 }
4371
4372 _ => CompletionTriggerKind::INVOKED,
4373 };
4374 let completion_context = CompletionContext {
4375 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4376 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4377 Some(String::from(trigger))
4378 } else {
4379 None
4380 }
4381 }),
4382 trigger_kind,
4383 };
4384 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4385 let sort_completions = provider.sort_completions();
4386
4387 let id = post_inc(&mut self.next_completion_id);
4388 let task = cx.spawn(|this, mut cx| {
4389 async move {
4390 this.update(&mut cx, |this, _| {
4391 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4392 })?;
4393 let completions = completions.await.log_err();
4394 let menu = if let Some(completions) = completions {
4395 let mut menu = CompletionsMenu {
4396 id,
4397 sort_completions,
4398 initial_position: position,
4399 match_candidates: completions
4400 .iter()
4401 .enumerate()
4402 .map(|(id, completion)| {
4403 StringMatchCandidate::new(
4404 id,
4405 completion.label.text[completion.label.filter_range.clone()]
4406 .into(),
4407 )
4408 })
4409 .collect(),
4410 buffer: buffer.clone(),
4411 completions: Arc::new(RwLock::new(completions.into())),
4412 matches: Vec::new().into(),
4413 selected_item: 0,
4414 scroll_handle: UniformListScrollHandle::new(),
4415 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4416 DebouncedDelay::new(),
4417 )),
4418 };
4419 menu.filter(query.as_deref(), cx.background_executor().clone())
4420 .await;
4421
4422 if menu.matches.is_empty() {
4423 None
4424 } else {
4425 this.update(&mut cx, |editor, cx| {
4426 let completions = menu.completions.clone();
4427 let matches = menu.matches.clone();
4428
4429 let delay_ms = EditorSettings::get_global(cx)
4430 .completion_documentation_secondary_query_debounce;
4431 let delay = Duration::from_millis(delay_ms);
4432 editor
4433 .completion_documentation_pre_resolve_debounce
4434 .fire_new(delay, cx, |editor, cx| {
4435 CompletionsMenu::pre_resolve_completion_documentation(
4436 buffer,
4437 completions,
4438 matches,
4439 editor,
4440 cx,
4441 )
4442 });
4443 })
4444 .ok();
4445 Some(menu)
4446 }
4447 } else {
4448 None
4449 };
4450
4451 this.update(&mut cx, |this, cx| {
4452 let mut context_menu = this.context_menu.write();
4453 match context_menu.as_ref() {
4454 None => {}
4455
4456 Some(ContextMenu::Completions(prev_menu)) => {
4457 if prev_menu.id > id {
4458 return;
4459 }
4460 }
4461
4462 _ => return,
4463 }
4464
4465 if this.focus_handle.is_focused(cx) && menu.is_some() {
4466 let menu = menu.unwrap();
4467 *context_menu = Some(ContextMenu::Completions(menu));
4468 drop(context_menu);
4469 this.discard_inline_completion(false, cx);
4470 cx.notify();
4471 } else if this.completion_tasks.len() <= 1 {
4472 // If there are no more completion tasks and the last menu was
4473 // empty, we should hide it. If it was already hidden, we should
4474 // also show the copilot completion when available.
4475 drop(context_menu);
4476 if this.hide_context_menu(cx).is_none() {
4477 this.update_visible_inline_completion(cx);
4478 }
4479 }
4480 })?;
4481
4482 Ok::<_, anyhow::Error>(())
4483 }
4484 .log_err()
4485 });
4486
4487 self.completion_tasks.push((id, task));
4488 }
4489
4490 pub fn confirm_completion(
4491 &mut self,
4492 action: &ConfirmCompletion,
4493 cx: &mut ViewContext<Self>,
4494 ) -> Option<Task<Result<()>>> {
4495 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4496 }
4497
4498 pub fn compose_completion(
4499 &mut self,
4500 action: &ComposeCompletion,
4501 cx: &mut ViewContext<Self>,
4502 ) -> Option<Task<Result<()>>> {
4503 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4504 }
4505
4506 fn do_completion(
4507 &mut self,
4508 item_ix: Option<usize>,
4509 intent: CompletionIntent,
4510 cx: &mut ViewContext<Editor>,
4511 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4512 use language::ToOffset as _;
4513
4514 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4515 menu
4516 } else {
4517 return None;
4518 };
4519
4520 let mat = completions_menu
4521 .matches
4522 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4523 let buffer_handle = completions_menu.buffer;
4524 let completions = completions_menu.completions.read();
4525 let completion = completions.get(mat.candidate_id)?;
4526 cx.stop_propagation();
4527
4528 let snippet;
4529 let text;
4530
4531 if completion.is_snippet() {
4532 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4533 text = snippet.as_ref().unwrap().text.clone();
4534 } else {
4535 snippet = None;
4536 text = completion.new_text.clone();
4537 };
4538 let selections = self.selections.all::<usize>(cx);
4539 let buffer = buffer_handle.read(cx);
4540 let old_range = completion.old_range.to_offset(buffer);
4541 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4542
4543 let newest_selection = self.selections.newest_anchor();
4544 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4545 return None;
4546 }
4547
4548 let lookbehind = newest_selection
4549 .start
4550 .text_anchor
4551 .to_offset(buffer)
4552 .saturating_sub(old_range.start);
4553 let lookahead = old_range
4554 .end
4555 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4556 let mut common_prefix_len = old_text
4557 .bytes()
4558 .zip(text.bytes())
4559 .take_while(|(a, b)| a == b)
4560 .count();
4561
4562 let snapshot = self.buffer.read(cx).snapshot(cx);
4563 let mut range_to_replace: Option<Range<isize>> = None;
4564 let mut ranges = Vec::new();
4565 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4566 for selection in &selections {
4567 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4568 let start = selection.start.saturating_sub(lookbehind);
4569 let end = selection.end + lookahead;
4570 if selection.id == newest_selection.id {
4571 range_to_replace = Some(
4572 ((start + common_prefix_len) as isize - selection.start as isize)
4573 ..(end as isize - selection.start as isize),
4574 );
4575 }
4576 ranges.push(start + common_prefix_len..end);
4577 } else {
4578 common_prefix_len = 0;
4579 ranges.clear();
4580 ranges.extend(selections.iter().map(|s| {
4581 if s.id == newest_selection.id {
4582 range_to_replace = Some(
4583 old_range.start.to_offset_utf16(&snapshot).0 as isize
4584 - selection.start as isize
4585 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4586 - selection.start as isize,
4587 );
4588 old_range.clone()
4589 } else {
4590 s.start..s.end
4591 }
4592 }));
4593 break;
4594 }
4595 if !self.linked_edit_ranges.is_empty() {
4596 let start_anchor = snapshot.anchor_before(selection.head());
4597 let end_anchor = snapshot.anchor_after(selection.tail());
4598 if let Some(ranges) = self
4599 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4600 {
4601 for (buffer, edits) in ranges {
4602 linked_edits.entry(buffer.clone()).or_default().extend(
4603 edits
4604 .into_iter()
4605 .map(|range| (range, text[common_prefix_len..].to_owned())),
4606 );
4607 }
4608 }
4609 }
4610 }
4611 let text = &text[common_prefix_len..];
4612
4613 cx.emit(EditorEvent::InputHandled {
4614 utf16_range_to_replace: range_to_replace,
4615 text: text.into(),
4616 });
4617
4618 self.transact(cx, |this, cx| {
4619 if let Some(mut snippet) = snippet {
4620 snippet.text = text.to_string();
4621 for tabstop in snippet.tabstops.iter_mut().flatten() {
4622 tabstop.start -= common_prefix_len as isize;
4623 tabstop.end -= common_prefix_len as isize;
4624 }
4625
4626 this.insert_snippet(&ranges, snippet, cx).log_err();
4627 } else {
4628 this.buffer.update(cx, |buffer, cx| {
4629 buffer.edit(
4630 ranges.iter().map(|range| (range.clone(), text)),
4631 this.autoindent_mode.clone(),
4632 cx,
4633 );
4634 });
4635 }
4636 for (buffer, edits) in linked_edits {
4637 buffer.update(cx, |buffer, cx| {
4638 let snapshot = buffer.snapshot();
4639 let edits = edits
4640 .into_iter()
4641 .map(|(range, text)| {
4642 use text::ToPoint as TP;
4643 let end_point = TP::to_point(&range.end, &snapshot);
4644 let start_point = TP::to_point(&range.start, &snapshot);
4645 (start_point..end_point, text)
4646 })
4647 .sorted_by_key(|(range, _)| range.start)
4648 .collect::<Vec<_>>();
4649 buffer.edit(edits, None, cx);
4650 })
4651 }
4652
4653 this.refresh_inline_completion(true, false, cx);
4654 });
4655
4656 let show_new_completions_on_confirm = completion
4657 .confirm
4658 .as_ref()
4659 .map_or(false, |confirm| confirm(intent, cx));
4660 if show_new_completions_on_confirm {
4661 self.show_completions(&ShowCompletions { trigger: None }, cx);
4662 }
4663
4664 let provider = self.completion_provider.as_ref()?;
4665 let apply_edits = provider.apply_additional_edits_for_completion(
4666 buffer_handle,
4667 completion.clone(),
4668 true,
4669 cx,
4670 );
4671
4672 let editor_settings = EditorSettings::get_global(cx);
4673 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4674 // After the code completion is finished, users often want to know what signatures are needed.
4675 // so we should automatically call signature_help
4676 self.show_signature_help(&ShowSignatureHelp, cx);
4677 }
4678
4679 Some(cx.foreground_executor().spawn(async move {
4680 apply_edits.await?;
4681 Ok(())
4682 }))
4683 }
4684
4685 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4686 let mut context_menu = self.context_menu.write();
4687 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4688 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4689 // Toggle if we're selecting the same one
4690 *context_menu = None;
4691 cx.notify();
4692 return;
4693 } else {
4694 // Otherwise, clear it and start a new one
4695 *context_menu = None;
4696 cx.notify();
4697 }
4698 }
4699 drop(context_menu);
4700 let snapshot = self.snapshot(cx);
4701 let deployed_from_indicator = action.deployed_from_indicator;
4702 let mut task = self.code_actions_task.take();
4703 let action = action.clone();
4704 cx.spawn(|editor, mut cx| async move {
4705 while let Some(prev_task) = task {
4706 prev_task.await.log_err();
4707 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4708 }
4709
4710 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4711 if editor.focus_handle.is_focused(cx) {
4712 let multibuffer_point = action
4713 .deployed_from_indicator
4714 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4715 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4716 let (buffer, buffer_row) = snapshot
4717 .buffer_snapshot
4718 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4719 .and_then(|(buffer_snapshot, range)| {
4720 editor
4721 .buffer
4722 .read(cx)
4723 .buffer(buffer_snapshot.remote_id())
4724 .map(|buffer| (buffer, range.start.row))
4725 })?;
4726 let (_, code_actions) = editor
4727 .available_code_actions
4728 .clone()
4729 .and_then(|(location, code_actions)| {
4730 let snapshot = location.buffer.read(cx).snapshot();
4731 let point_range = location.range.to_point(&snapshot);
4732 let point_range = point_range.start.row..=point_range.end.row;
4733 if point_range.contains(&buffer_row) {
4734 Some((location, code_actions))
4735 } else {
4736 None
4737 }
4738 })
4739 .unzip();
4740 let buffer_id = buffer.read(cx).remote_id();
4741 let tasks = editor
4742 .tasks
4743 .get(&(buffer_id, buffer_row))
4744 .map(|t| Arc::new(t.to_owned()));
4745 if tasks.is_none() && code_actions.is_none() {
4746 return None;
4747 }
4748
4749 editor.completion_tasks.clear();
4750 editor.discard_inline_completion(false, cx);
4751 let task_context =
4752 tasks
4753 .as_ref()
4754 .zip(editor.project.clone())
4755 .map(|(tasks, project)| {
4756 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4757 });
4758
4759 Some(cx.spawn(|editor, mut cx| async move {
4760 let task_context = match task_context {
4761 Some(task_context) => task_context.await,
4762 None => None,
4763 };
4764 let resolved_tasks =
4765 tasks.zip(task_context).map(|(tasks, task_context)| {
4766 Arc::new(ResolvedTasks {
4767 templates: tasks.resolve(&task_context).collect(),
4768 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4769 multibuffer_point.row,
4770 tasks.column,
4771 )),
4772 })
4773 });
4774 let spawn_straight_away = resolved_tasks
4775 .as_ref()
4776 .map_or(false, |tasks| tasks.templates.len() == 1)
4777 && code_actions
4778 .as_ref()
4779 .map_or(true, |actions| actions.is_empty());
4780 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4781 *editor.context_menu.write() =
4782 Some(ContextMenu::CodeActions(CodeActionsMenu {
4783 buffer,
4784 actions: CodeActionContents {
4785 tasks: resolved_tasks,
4786 actions: code_actions,
4787 },
4788 selected_item: Default::default(),
4789 scroll_handle: UniformListScrollHandle::default(),
4790 deployed_from_indicator,
4791 }));
4792 if spawn_straight_away {
4793 if let Some(task) = editor.confirm_code_action(
4794 &ConfirmCodeAction { item_ix: Some(0) },
4795 cx,
4796 ) {
4797 cx.notify();
4798 return task;
4799 }
4800 }
4801 cx.notify();
4802 Task::ready(Ok(()))
4803 }) {
4804 task.await
4805 } else {
4806 Ok(())
4807 }
4808 }))
4809 } else {
4810 Some(Task::ready(Ok(())))
4811 }
4812 })?;
4813 if let Some(task) = spawned_test_task {
4814 task.await?;
4815 }
4816
4817 Ok::<_, anyhow::Error>(())
4818 })
4819 .detach_and_log_err(cx);
4820 }
4821
4822 pub fn confirm_code_action(
4823 &mut self,
4824 action: &ConfirmCodeAction,
4825 cx: &mut ViewContext<Self>,
4826 ) -> Option<Task<Result<()>>> {
4827 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4828 menu
4829 } else {
4830 return None;
4831 };
4832 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4833 let action = actions_menu.actions.get(action_ix)?;
4834 let title = action.label();
4835 let buffer = actions_menu.buffer;
4836 let workspace = self.workspace()?;
4837
4838 match action {
4839 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4840 workspace.update(cx, |workspace, cx| {
4841 workspace::tasks::schedule_resolved_task(
4842 workspace,
4843 task_source_kind,
4844 resolved_task,
4845 false,
4846 cx,
4847 );
4848
4849 Some(Task::ready(Ok(())))
4850 })
4851 }
4852 CodeActionsItem::CodeAction {
4853 excerpt_id,
4854 action,
4855 provider,
4856 } => {
4857 let apply_code_action =
4858 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4859 let workspace = workspace.downgrade();
4860 Some(cx.spawn(|editor, cx| async move {
4861 let project_transaction = apply_code_action.await?;
4862 Self::open_project_transaction(
4863 &editor,
4864 workspace,
4865 project_transaction,
4866 title,
4867 cx,
4868 )
4869 .await
4870 }))
4871 }
4872 }
4873 }
4874
4875 pub async fn open_project_transaction(
4876 this: &WeakView<Editor>,
4877 workspace: WeakView<Workspace>,
4878 transaction: ProjectTransaction,
4879 title: String,
4880 mut cx: AsyncWindowContext,
4881 ) -> Result<()> {
4882 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4883 cx.update(|cx| {
4884 entries.sort_unstable_by_key(|(buffer, _)| {
4885 buffer.read(cx).file().map(|f| f.path().clone())
4886 });
4887 })?;
4888
4889 // If the project transaction's edits are all contained within this editor, then
4890 // avoid opening a new editor to display them.
4891
4892 if let Some((buffer, transaction)) = entries.first() {
4893 if entries.len() == 1 {
4894 let excerpt = this.update(&mut cx, |editor, cx| {
4895 editor
4896 .buffer()
4897 .read(cx)
4898 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4899 })?;
4900 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4901 if excerpted_buffer == *buffer {
4902 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4903 let excerpt_range = excerpt_range.to_offset(buffer);
4904 buffer
4905 .edited_ranges_for_transaction::<usize>(transaction)
4906 .all(|range| {
4907 excerpt_range.start <= range.start
4908 && excerpt_range.end >= range.end
4909 })
4910 })?;
4911
4912 if all_edits_within_excerpt {
4913 return Ok(());
4914 }
4915 }
4916 }
4917 }
4918 } else {
4919 return Ok(());
4920 }
4921
4922 let mut ranges_to_highlight = Vec::new();
4923 let excerpt_buffer = cx.new_model(|cx| {
4924 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4925 for (buffer_handle, transaction) in &entries {
4926 let buffer = buffer_handle.read(cx);
4927 ranges_to_highlight.extend(
4928 multibuffer.push_excerpts_with_context_lines(
4929 buffer_handle.clone(),
4930 buffer
4931 .edited_ranges_for_transaction::<usize>(transaction)
4932 .collect(),
4933 DEFAULT_MULTIBUFFER_CONTEXT,
4934 cx,
4935 ),
4936 );
4937 }
4938 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4939 multibuffer
4940 })?;
4941
4942 workspace.update(&mut cx, |workspace, cx| {
4943 let project = workspace.project().clone();
4944 let editor =
4945 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4946 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4947 editor.update(cx, |editor, cx| {
4948 editor.highlight_background::<Self>(
4949 &ranges_to_highlight,
4950 |theme| theme.editor_highlighted_line_background,
4951 cx,
4952 );
4953 });
4954 })?;
4955
4956 Ok(())
4957 }
4958
4959 pub fn clear_code_action_providers(&mut self) {
4960 self.code_action_providers.clear();
4961 self.available_code_actions.take();
4962 }
4963
4964 pub fn push_code_action_provider(
4965 &mut self,
4966 provider: Arc<dyn CodeActionProvider>,
4967 cx: &mut ViewContext<Self>,
4968 ) {
4969 self.code_action_providers.push(provider);
4970 self.refresh_code_actions(cx);
4971 }
4972
4973 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4974 let buffer = self.buffer.read(cx);
4975 let newest_selection = self.selections.newest_anchor().clone();
4976 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4977 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4978 if start_buffer != end_buffer {
4979 return None;
4980 }
4981
4982 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4983 cx.background_executor()
4984 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4985 .await;
4986
4987 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4988 let providers = this.code_action_providers.clone();
4989 let tasks = this
4990 .code_action_providers
4991 .iter()
4992 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4993 .collect::<Vec<_>>();
4994 (providers, tasks)
4995 })?;
4996
4997 let mut actions = Vec::new();
4998 for (provider, provider_actions) in
4999 providers.into_iter().zip(future::join_all(tasks).await)
5000 {
5001 if let Some(provider_actions) = provider_actions.log_err() {
5002 actions.extend(provider_actions.into_iter().map(|action| {
5003 AvailableCodeAction {
5004 excerpt_id: newest_selection.start.excerpt_id,
5005 action,
5006 provider: provider.clone(),
5007 }
5008 }));
5009 }
5010 }
5011
5012 this.update(&mut cx, |this, cx| {
5013 this.available_code_actions = if actions.is_empty() {
5014 None
5015 } else {
5016 Some((
5017 Location {
5018 buffer: start_buffer,
5019 range: start..end,
5020 },
5021 actions.into(),
5022 ))
5023 };
5024 cx.notify();
5025 })
5026 }));
5027 None
5028 }
5029
5030 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
5031 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
5032 self.show_git_blame_inline = false;
5033
5034 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
5035 cx.background_executor().timer(delay).await;
5036
5037 this.update(&mut cx, |this, cx| {
5038 this.show_git_blame_inline = true;
5039 cx.notify();
5040 })
5041 .log_err();
5042 }));
5043 }
5044 }
5045
5046 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5047 if self.pending_rename.is_some() {
5048 return None;
5049 }
5050
5051 let provider = self.semantics_provider.clone()?;
5052 let buffer = self.buffer.read(cx);
5053 let newest_selection = self.selections.newest_anchor().clone();
5054 let cursor_position = newest_selection.head();
5055 let (cursor_buffer, cursor_buffer_position) =
5056 buffer.text_anchor_for_position(cursor_position, cx)?;
5057 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
5058 if cursor_buffer != tail_buffer {
5059 return None;
5060 }
5061
5062 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5063 cx.background_executor()
5064 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5065 .await;
5066
5067 let highlights = if let Some(highlights) = cx
5068 .update(|cx| {
5069 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5070 })
5071 .ok()
5072 .flatten()
5073 {
5074 highlights.await.log_err()
5075 } else {
5076 None
5077 };
5078
5079 if let Some(highlights) = highlights {
5080 this.update(&mut cx, |this, cx| {
5081 if this.pending_rename.is_some() {
5082 return;
5083 }
5084
5085 let buffer_id = cursor_position.buffer_id;
5086 let buffer = this.buffer.read(cx);
5087 if !buffer
5088 .text_anchor_for_position(cursor_position, cx)
5089 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5090 {
5091 return;
5092 }
5093
5094 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5095 let mut write_ranges = Vec::new();
5096 let mut read_ranges = Vec::new();
5097 for highlight in highlights {
5098 for (excerpt_id, excerpt_range) in
5099 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5100 {
5101 let start = highlight
5102 .range
5103 .start
5104 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5105 let end = highlight
5106 .range
5107 .end
5108 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5109 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5110 continue;
5111 }
5112
5113 let range = Anchor {
5114 buffer_id,
5115 excerpt_id,
5116 text_anchor: start,
5117 }..Anchor {
5118 buffer_id,
5119 excerpt_id,
5120 text_anchor: end,
5121 };
5122 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5123 write_ranges.push(range);
5124 } else {
5125 read_ranges.push(range);
5126 }
5127 }
5128 }
5129
5130 this.highlight_background::<DocumentHighlightRead>(
5131 &read_ranges,
5132 |theme| theme.editor_document_highlight_read_background,
5133 cx,
5134 );
5135 this.highlight_background::<DocumentHighlightWrite>(
5136 &write_ranges,
5137 |theme| theme.editor_document_highlight_write_background,
5138 cx,
5139 );
5140 cx.notify();
5141 })
5142 .log_err();
5143 }
5144 }));
5145 None
5146 }
5147
5148 pub fn refresh_inline_completion(
5149 &mut self,
5150 debounce: bool,
5151 user_requested: bool,
5152 cx: &mut ViewContext<Self>,
5153 ) -> Option<()> {
5154 let provider = self.inline_completion_provider()?;
5155 let cursor = self.selections.newest_anchor().head();
5156 let (buffer, cursor_buffer_position) =
5157 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5158
5159 if !user_requested
5160 && (!self.enable_inline_completions
5161 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5162 {
5163 self.discard_inline_completion(false, cx);
5164 return None;
5165 }
5166
5167 self.update_visible_inline_completion(cx);
5168 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5169 Some(())
5170 }
5171
5172 fn cycle_inline_completion(
5173 &mut self,
5174 direction: Direction,
5175 cx: &mut ViewContext<Self>,
5176 ) -> Option<()> {
5177 let provider = self.inline_completion_provider()?;
5178 let cursor = self.selections.newest_anchor().head();
5179 let (buffer, cursor_buffer_position) =
5180 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5181 if !self.enable_inline_completions
5182 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5183 {
5184 return None;
5185 }
5186
5187 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5188 self.update_visible_inline_completion(cx);
5189
5190 Some(())
5191 }
5192
5193 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5194 if !self.has_active_inline_completion(cx) {
5195 self.refresh_inline_completion(false, true, cx);
5196 return;
5197 }
5198
5199 self.update_visible_inline_completion(cx);
5200 }
5201
5202 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5203 self.show_cursor_names(cx);
5204 }
5205
5206 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5207 self.show_cursor_names = true;
5208 cx.notify();
5209 cx.spawn(|this, mut cx| async move {
5210 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5211 this.update(&mut cx, |this, cx| {
5212 this.show_cursor_names = false;
5213 cx.notify()
5214 })
5215 .ok()
5216 })
5217 .detach();
5218 }
5219
5220 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5221 if self.has_active_inline_completion(cx) {
5222 self.cycle_inline_completion(Direction::Next, cx);
5223 } else {
5224 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5225 if is_copilot_disabled {
5226 cx.propagate();
5227 }
5228 }
5229 }
5230
5231 pub fn previous_inline_completion(
5232 &mut self,
5233 _: &PreviousInlineCompletion,
5234 cx: &mut ViewContext<Self>,
5235 ) {
5236 if self.has_active_inline_completion(cx) {
5237 self.cycle_inline_completion(Direction::Prev, cx);
5238 } else {
5239 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5240 if is_copilot_disabled {
5241 cx.propagate();
5242 }
5243 }
5244 }
5245
5246 pub fn accept_inline_completion(
5247 &mut self,
5248 _: &AcceptInlineCompletion,
5249 cx: &mut ViewContext<Self>,
5250 ) {
5251 let Some(completion) = self.take_active_inline_completion(cx) else {
5252 return;
5253 };
5254 if let Some(provider) = self.inline_completion_provider() {
5255 provider.accept(cx);
5256 }
5257
5258 cx.emit(EditorEvent::InputHandled {
5259 utf16_range_to_replace: None,
5260 text: completion.text.to_string().into(),
5261 });
5262
5263 if let Some(range) = completion.delete_range {
5264 self.change_selections(None, cx, |s| s.select_ranges([range]))
5265 }
5266 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5267 self.refresh_inline_completion(true, true, cx);
5268 cx.notify();
5269 }
5270
5271 pub fn accept_partial_inline_completion(
5272 &mut self,
5273 _: &AcceptPartialInlineCompletion,
5274 cx: &mut ViewContext<Self>,
5275 ) {
5276 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5277 if let Some(completion) = self.take_active_inline_completion(cx) {
5278 let mut partial_completion = completion
5279 .text
5280 .chars()
5281 .by_ref()
5282 .take_while(|c| c.is_alphabetic())
5283 .collect::<String>();
5284 if partial_completion.is_empty() {
5285 partial_completion = completion
5286 .text
5287 .chars()
5288 .by_ref()
5289 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5290 .collect::<String>();
5291 }
5292
5293 cx.emit(EditorEvent::InputHandled {
5294 utf16_range_to_replace: None,
5295 text: partial_completion.clone().into(),
5296 });
5297
5298 if let Some(range) = completion.delete_range {
5299 self.change_selections(None, cx, |s| s.select_ranges([range]))
5300 }
5301 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5302
5303 self.refresh_inline_completion(true, true, cx);
5304 cx.notify();
5305 }
5306 }
5307 }
5308
5309 fn discard_inline_completion(
5310 &mut self,
5311 should_report_inline_completion_event: bool,
5312 cx: &mut ViewContext<Self>,
5313 ) -> bool {
5314 if let Some(provider) = self.inline_completion_provider() {
5315 provider.discard(should_report_inline_completion_event, cx);
5316 }
5317
5318 self.take_active_inline_completion(cx).is_some()
5319 }
5320
5321 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5322 if let Some(completion) = self.active_inline_completion.as_ref() {
5323 let buffer = self.buffer.read(cx).read(cx);
5324 completion.position.is_valid(&buffer)
5325 } else {
5326 false
5327 }
5328 }
5329
5330 fn take_active_inline_completion(
5331 &mut self,
5332 cx: &mut ViewContext<Self>,
5333 ) -> Option<CompletionState> {
5334 let completion = self.active_inline_completion.take()?;
5335 let render_inlay_ids = completion.render_inlay_ids.clone();
5336 self.display_map.update(cx, |map, cx| {
5337 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5338 });
5339 let buffer = self.buffer.read(cx).read(cx);
5340
5341 if completion.position.is_valid(&buffer) {
5342 Some(completion)
5343 } else {
5344 None
5345 }
5346 }
5347
5348 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5349 let selection = self.selections.newest_anchor();
5350 let cursor = selection.head();
5351
5352 let excerpt_id = cursor.excerpt_id;
5353
5354 if self.context_menu.read().is_none()
5355 && self.completion_tasks.is_empty()
5356 && selection.start == selection.end
5357 {
5358 if let Some(provider) = self.inline_completion_provider() {
5359 if let Some((buffer, cursor_buffer_position)) =
5360 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5361 {
5362 if let Some(proposal) =
5363 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5364 {
5365 let mut to_remove = Vec::new();
5366 if let Some(completion) = self.active_inline_completion.take() {
5367 to_remove.extend(completion.render_inlay_ids.iter());
5368 }
5369
5370 let to_add = proposal
5371 .inlays
5372 .iter()
5373 .filter_map(|inlay| {
5374 let snapshot = self.buffer.read(cx).snapshot(cx);
5375 let id = post_inc(&mut self.next_inlay_id);
5376 match inlay {
5377 InlayProposal::Hint(position, hint) => {
5378 let position =
5379 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5380 Some(Inlay::hint(id, position, hint))
5381 }
5382 InlayProposal::Suggestion(position, text) => {
5383 let position =
5384 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5385 Some(Inlay::suggestion(id, position, text.clone()))
5386 }
5387 }
5388 })
5389 .collect_vec();
5390
5391 self.active_inline_completion = Some(CompletionState {
5392 position: cursor,
5393 text: proposal.text,
5394 delete_range: proposal.delete_range.and_then(|range| {
5395 let snapshot = self.buffer.read(cx).snapshot(cx);
5396 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5397 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5398 Some(start?..end?)
5399 }),
5400 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5401 });
5402
5403 self.display_map
5404 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5405
5406 cx.notify();
5407 return;
5408 }
5409 }
5410 }
5411 }
5412
5413 self.discard_inline_completion(false, cx);
5414 }
5415
5416 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5417 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5418 }
5419
5420 fn render_code_actions_indicator(
5421 &self,
5422 _style: &EditorStyle,
5423 row: DisplayRow,
5424 is_active: bool,
5425 cx: &mut ViewContext<Self>,
5426 ) -> Option<IconButton> {
5427 if self.available_code_actions.is_some() {
5428 Some(
5429 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5430 .shape(ui::IconButtonShape::Square)
5431 .icon_size(IconSize::XSmall)
5432 .icon_color(Color::Muted)
5433 .selected(is_active)
5434 .tooltip({
5435 let focus_handle = self.focus_handle.clone();
5436 move |cx| {
5437 Tooltip::for_action_in(
5438 "Toggle Code Actions",
5439 &ToggleCodeActions {
5440 deployed_from_indicator: None,
5441 },
5442 &focus_handle,
5443 cx,
5444 )
5445 }
5446 })
5447 .on_click(cx.listener(move |editor, _e, cx| {
5448 editor.focus(cx);
5449 editor.toggle_code_actions(
5450 &ToggleCodeActions {
5451 deployed_from_indicator: Some(row),
5452 },
5453 cx,
5454 );
5455 })),
5456 )
5457 } else {
5458 None
5459 }
5460 }
5461
5462 fn clear_tasks(&mut self) {
5463 self.tasks.clear()
5464 }
5465
5466 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5467 if self.tasks.insert(key, value).is_some() {
5468 // This case should hopefully be rare, but just in case...
5469 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5470 }
5471 }
5472
5473 fn build_tasks_context(
5474 project: &Model<Project>,
5475 buffer: &Model<Buffer>,
5476 buffer_row: u32,
5477 tasks: &Arc<RunnableTasks>,
5478 cx: &mut ViewContext<Self>,
5479 ) -> Task<Option<task::TaskContext>> {
5480 let position = Point::new(buffer_row, tasks.column);
5481 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5482 let location = Location {
5483 buffer: buffer.clone(),
5484 range: range_start..range_start,
5485 };
5486 // Fill in the environmental variables from the tree-sitter captures
5487 let mut captured_task_variables = TaskVariables::default();
5488 for (capture_name, value) in tasks.extra_variables.clone() {
5489 captured_task_variables.insert(
5490 task::VariableName::Custom(capture_name.into()),
5491 value.clone(),
5492 );
5493 }
5494 project.update(cx, |project, cx| {
5495 project.task_store().update(cx, |task_store, cx| {
5496 task_store.task_context_for_location(captured_task_variables, location, cx)
5497 })
5498 })
5499 }
5500
5501 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5502 let Some((workspace, _)) = self.workspace.clone() else {
5503 return;
5504 };
5505 let Some(project) = self.project.clone() else {
5506 return;
5507 };
5508
5509 // Try to find a closest, enclosing node using tree-sitter that has a
5510 // task
5511 let Some((buffer, buffer_row, tasks)) = self
5512 .find_enclosing_node_task(cx)
5513 // Or find the task that's closest in row-distance.
5514 .or_else(|| self.find_closest_task(cx))
5515 else {
5516 return;
5517 };
5518
5519 let reveal_strategy = action.reveal;
5520 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5521 cx.spawn(|_, mut cx| async move {
5522 let context = task_context.await?;
5523 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5524
5525 let resolved = resolved_task.resolved.as_mut()?;
5526 resolved.reveal = reveal_strategy;
5527
5528 workspace
5529 .update(&mut cx, |workspace, cx| {
5530 workspace::tasks::schedule_resolved_task(
5531 workspace,
5532 task_source_kind,
5533 resolved_task,
5534 false,
5535 cx,
5536 );
5537 })
5538 .ok()
5539 })
5540 .detach();
5541 }
5542
5543 fn find_closest_task(
5544 &mut self,
5545 cx: &mut ViewContext<Self>,
5546 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5547 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5548
5549 let ((buffer_id, row), tasks) = self
5550 .tasks
5551 .iter()
5552 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5553
5554 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5555 let tasks = Arc::new(tasks.to_owned());
5556 Some((buffer, *row, tasks))
5557 }
5558
5559 fn find_enclosing_node_task(
5560 &mut self,
5561 cx: &mut ViewContext<Self>,
5562 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5563 let snapshot = self.buffer.read(cx).snapshot(cx);
5564 let offset = self.selections.newest::<usize>(cx).head();
5565 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5566 let buffer_id = excerpt.buffer().remote_id();
5567
5568 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5569 let mut cursor = layer.node().walk();
5570
5571 while cursor.goto_first_child_for_byte(offset).is_some() {
5572 if cursor.node().end_byte() == offset {
5573 cursor.goto_next_sibling();
5574 }
5575 }
5576
5577 // Ascend to the smallest ancestor that contains the range and has a task.
5578 loop {
5579 let node = cursor.node();
5580 let node_range = node.byte_range();
5581 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5582
5583 // Check if this node contains our offset
5584 if node_range.start <= offset && node_range.end >= offset {
5585 // If it contains offset, check for task
5586 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5587 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5588 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5589 }
5590 }
5591
5592 if !cursor.goto_parent() {
5593 break;
5594 }
5595 }
5596 None
5597 }
5598
5599 fn render_run_indicator(
5600 &self,
5601 _style: &EditorStyle,
5602 is_active: bool,
5603 row: DisplayRow,
5604 cx: &mut ViewContext<Self>,
5605 ) -> IconButton {
5606 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5607 .shape(ui::IconButtonShape::Square)
5608 .icon_size(IconSize::XSmall)
5609 .icon_color(Color::Muted)
5610 .selected(is_active)
5611 .on_click(cx.listener(move |editor, _e, cx| {
5612 editor.focus(cx);
5613 editor.toggle_code_actions(
5614 &ToggleCodeActions {
5615 deployed_from_indicator: Some(row),
5616 },
5617 cx,
5618 );
5619 }))
5620 }
5621
5622 pub fn context_menu_visible(&self) -> bool {
5623 self.context_menu
5624 .read()
5625 .as_ref()
5626 .map_or(false, |menu| menu.visible())
5627 }
5628
5629 fn render_context_menu(
5630 &self,
5631 cursor_position: DisplayPoint,
5632 style: &EditorStyle,
5633 max_height: Pixels,
5634 cx: &mut ViewContext<Editor>,
5635 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5636 self.context_menu.read().as_ref().map(|menu| {
5637 menu.render(
5638 cursor_position,
5639 style,
5640 max_height,
5641 self.workspace.as_ref().map(|(w, _)| w.clone()),
5642 cx,
5643 )
5644 })
5645 }
5646
5647 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5648 cx.notify();
5649 self.completion_tasks.clear();
5650 let context_menu = self.context_menu.write().take();
5651 if context_menu.is_some() {
5652 self.update_visible_inline_completion(cx);
5653 }
5654 context_menu
5655 }
5656
5657 pub fn insert_snippet(
5658 &mut self,
5659 insertion_ranges: &[Range<usize>],
5660 snippet: Snippet,
5661 cx: &mut ViewContext<Self>,
5662 ) -> Result<()> {
5663 struct Tabstop<T> {
5664 is_end_tabstop: bool,
5665 ranges: Vec<Range<T>>,
5666 }
5667
5668 let tabstops = self.buffer.update(cx, |buffer, cx| {
5669 let snippet_text: Arc<str> = snippet.text.clone().into();
5670 buffer.edit(
5671 insertion_ranges
5672 .iter()
5673 .cloned()
5674 .map(|range| (range, snippet_text.clone())),
5675 Some(AutoindentMode::EachLine),
5676 cx,
5677 );
5678
5679 let snapshot = &*buffer.read(cx);
5680 let snippet = &snippet;
5681 snippet
5682 .tabstops
5683 .iter()
5684 .map(|tabstop| {
5685 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5686 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5687 });
5688 let mut tabstop_ranges = tabstop
5689 .iter()
5690 .flat_map(|tabstop_range| {
5691 let mut delta = 0_isize;
5692 insertion_ranges.iter().map(move |insertion_range| {
5693 let insertion_start = insertion_range.start as isize + delta;
5694 delta +=
5695 snippet.text.len() as isize - insertion_range.len() as isize;
5696
5697 let start = ((insertion_start + tabstop_range.start) as usize)
5698 .min(snapshot.len());
5699 let end = ((insertion_start + tabstop_range.end) as usize)
5700 .min(snapshot.len());
5701 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5702 })
5703 })
5704 .collect::<Vec<_>>();
5705 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5706
5707 Tabstop {
5708 is_end_tabstop,
5709 ranges: tabstop_ranges,
5710 }
5711 })
5712 .collect::<Vec<_>>()
5713 });
5714 if let Some(tabstop) = tabstops.first() {
5715 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5716 s.select_ranges(tabstop.ranges.iter().cloned());
5717 });
5718
5719 // If we're already at the last tabstop and it's at the end of the snippet,
5720 // we're done, we don't need to keep the state around.
5721 if !tabstop.is_end_tabstop {
5722 let ranges = tabstops
5723 .into_iter()
5724 .map(|tabstop| tabstop.ranges)
5725 .collect::<Vec<_>>();
5726 self.snippet_stack.push(SnippetState {
5727 active_index: 0,
5728 ranges,
5729 });
5730 }
5731
5732 // Check whether the just-entered snippet ends with an auto-closable bracket.
5733 if self.autoclose_regions.is_empty() {
5734 let snapshot = self.buffer.read(cx).snapshot(cx);
5735 for selection in &mut self.selections.all::<Point>(cx) {
5736 let selection_head = selection.head();
5737 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5738 continue;
5739 };
5740
5741 let mut bracket_pair = None;
5742 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5743 let prev_chars = snapshot
5744 .reversed_chars_at(selection_head)
5745 .collect::<String>();
5746 for (pair, enabled) in scope.brackets() {
5747 if enabled
5748 && pair.close
5749 && prev_chars.starts_with(pair.start.as_str())
5750 && next_chars.starts_with(pair.end.as_str())
5751 {
5752 bracket_pair = Some(pair.clone());
5753 break;
5754 }
5755 }
5756 if let Some(pair) = bracket_pair {
5757 let start = snapshot.anchor_after(selection_head);
5758 let end = snapshot.anchor_after(selection_head);
5759 self.autoclose_regions.push(AutocloseRegion {
5760 selection_id: selection.id,
5761 range: start..end,
5762 pair,
5763 });
5764 }
5765 }
5766 }
5767 }
5768 Ok(())
5769 }
5770
5771 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5772 self.move_to_snippet_tabstop(Bias::Right, cx)
5773 }
5774
5775 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5776 self.move_to_snippet_tabstop(Bias::Left, cx)
5777 }
5778
5779 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5780 if let Some(mut snippet) = self.snippet_stack.pop() {
5781 match bias {
5782 Bias::Left => {
5783 if snippet.active_index > 0 {
5784 snippet.active_index -= 1;
5785 } else {
5786 self.snippet_stack.push(snippet);
5787 return false;
5788 }
5789 }
5790 Bias::Right => {
5791 if snippet.active_index + 1 < snippet.ranges.len() {
5792 snippet.active_index += 1;
5793 } else {
5794 self.snippet_stack.push(snippet);
5795 return false;
5796 }
5797 }
5798 }
5799 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5800 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5801 s.select_anchor_ranges(current_ranges.iter().cloned())
5802 });
5803 // If snippet state is not at the last tabstop, push it back on the stack
5804 if snippet.active_index + 1 < snippet.ranges.len() {
5805 self.snippet_stack.push(snippet);
5806 }
5807 return true;
5808 }
5809 }
5810
5811 false
5812 }
5813
5814 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5815 self.transact(cx, |this, cx| {
5816 this.select_all(&SelectAll, cx);
5817 this.insert("", cx);
5818 });
5819 }
5820
5821 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5822 self.transact(cx, |this, cx| {
5823 this.select_autoclose_pair(cx);
5824 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5825 if !this.linked_edit_ranges.is_empty() {
5826 let selections = this.selections.all::<MultiBufferPoint>(cx);
5827 let snapshot = this.buffer.read(cx).snapshot(cx);
5828
5829 for selection in selections.iter() {
5830 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5831 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5832 if selection_start.buffer_id != selection_end.buffer_id {
5833 continue;
5834 }
5835 if let Some(ranges) =
5836 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5837 {
5838 for (buffer, entries) in ranges {
5839 linked_ranges.entry(buffer).or_default().extend(entries);
5840 }
5841 }
5842 }
5843 }
5844
5845 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5846 if !this.selections.line_mode {
5847 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5848 for selection in &mut selections {
5849 if selection.is_empty() {
5850 let old_head = selection.head();
5851 let mut new_head =
5852 movement::left(&display_map, old_head.to_display_point(&display_map))
5853 .to_point(&display_map);
5854 if let Some((buffer, line_buffer_range)) = display_map
5855 .buffer_snapshot
5856 .buffer_line_for_row(MultiBufferRow(old_head.row))
5857 {
5858 let indent_size =
5859 buffer.indent_size_for_line(line_buffer_range.start.row);
5860 let indent_len = match indent_size.kind {
5861 IndentKind::Space => {
5862 buffer.settings_at(line_buffer_range.start, cx).tab_size
5863 }
5864 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5865 };
5866 if old_head.column <= indent_size.len && old_head.column > 0 {
5867 let indent_len = indent_len.get();
5868 new_head = cmp::min(
5869 new_head,
5870 MultiBufferPoint::new(
5871 old_head.row,
5872 ((old_head.column - 1) / indent_len) * indent_len,
5873 ),
5874 );
5875 }
5876 }
5877
5878 selection.set_head(new_head, SelectionGoal::None);
5879 }
5880 }
5881 }
5882
5883 this.signature_help_state.set_backspace_pressed(true);
5884 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5885 this.insert("", cx);
5886 let empty_str: Arc<str> = Arc::from("");
5887 for (buffer, edits) in linked_ranges {
5888 let snapshot = buffer.read(cx).snapshot();
5889 use text::ToPoint as TP;
5890
5891 let edits = edits
5892 .into_iter()
5893 .map(|range| {
5894 let end_point = TP::to_point(&range.end, &snapshot);
5895 let mut start_point = TP::to_point(&range.start, &snapshot);
5896
5897 if end_point == start_point {
5898 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5899 .saturating_sub(1);
5900 start_point = TP::to_point(&offset, &snapshot);
5901 };
5902
5903 (start_point..end_point, empty_str.clone())
5904 })
5905 .sorted_by_key(|(range, _)| range.start)
5906 .collect::<Vec<_>>();
5907 buffer.update(cx, |this, cx| {
5908 this.edit(edits, None, cx);
5909 })
5910 }
5911 this.refresh_inline_completion(true, false, cx);
5912 linked_editing_ranges::refresh_linked_ranges(this, cx);
5913 });
5914 }
5915
5916 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5917 self.transact(cx, |this, cx| {
5918 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5919 let line_mode = s.line_mode;
5920 s.move_with(|map, selection| {
5921 if selection.is_empty() && !line_mode {
5922 let cursor = movement::right(map, selection.head());
5923 selection.end = cursor;
5924 selection.reversed = true;
5925 selection.goal = SelectionGoal::None;
5926 }
5927 })
5928 });
5929 this.insert("", cx);
5930 this.refresh_inline_completion(true, false, cx);
5931 });
5932 }
5933
5934 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5935 if self.move_to_prev_snippet_tabstop(cx) {
5936 return;
5937 }
5938
5939 self.outdent(&Outdent, cx);
5940 }
5941
5942 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5943 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5944 return;
5945 }
5946
5947 let mut selections = self.selections.all_adjusted(cx);
5948 let buffer = self.buffer.read(cx);
5949 let snapshot = buffer.snapshot(cx);
5950 let rows_iter = selections.iter().map(|s| s.head().row);
5951 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5952
5953 let mut edits = Vec::new();
5954 let mut prev_edited_row = 0;
5955 let mut row_delta = 0;
5956 for selection in &mut selections {
5957 if selection.start.row != prev_edited_row {
5958 row_delta = 0;
5959 }
5960 prev_edited_row = selection.end.row;
5961
5962 // If the selection is non-empty, then increase the indentation of the selected lines.
5963 if !selection.is_empty() {
5964 row_delta =
5965 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5966 continue;
5967 }
5968
5969 // If the selection is empty and the cursor is in the leading whitespace before the
5970 // suggested indentation, then auto-indent the line.
5971 let cursor = selection.head();
5972 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5973 if let Some(suggested_indent) =
5974 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5975 {
5976 if cursor.column < suggested_indent.len
5977 && cursor.column <= current_indent.len
5978 && current_indent.len <= suggested_indent.len
5979 {
5980 selection.start = Point::new(cursor.row, suggested_indent.len);
5981 selection.end = selection.start;
5982 if row_delta == 0 {
5983 edits.extend(Buffer::edit_for_indent_size_adjustment(
5984 cursor.row,
5985 current_indent,
5986 suggested_indent,
5987 ));
5988 row_delta = suggested_indent.len - current_indent.len;
5989 }
5990 continue;
5991 }
5992 }
5993
5994 // Otherwise, insert a hard or soft tab.
5995 let settings = buffer.settings_at(cursor, cx);
5996 let tab_size = if settings.hard_tabs {
5997 IndentSize::tab()
5998 } else {
5999 let tab_size = settings.tab_size.get();
6000 let char_column = snapshot
6001 .text_for_range(Point::new(cursor.row, 0)..cursor)
6002 .flat_map(str::chars)
6003 .count()
6004 + row_delta as usize;
6005 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
6006 IndentSize::spaces(chars_to_next_tab_stop)
6007 };
6008 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
6009 selection.end = selection.start;
6010 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
6011 row_delta += tab_size.len;
6012 }
6013
6014 self.transact(cx, |this, cx| {
6015 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6016 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6017 this.refresh_inline_completion(true, false, cx);
6018 });
6019 }
6020
6021 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
6022 if self.read_only(cx) {
6023 return;
6024 }
6025 let mut selections = self.selections.all::<Point>(cx);
6026 let mut prev_edited_row = 0;
6027 let mut row_delta = 0;
6028 let mut edits = Vec::new();
6029 let buffer = self.buffer.read(cx);
6030 let snapshot = buffer.snapshot(cx);
6031 for selection in &mut selections {
6032 if selection.start.row != prev_edited_row {
6033 row_delta = 0;
6034 }
6035 prev_edited_row = selection.end.row;
6036
6037 row_delta =
6038 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6039 }
6040
6041 self.transact(cx, |this, cx| {
6042 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6043 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6044 });
6045 }
6046
6047 fn indent_selection(
6048 buffer: &MultiBuffer,
6049 snapshot: &MultiBufferSnapshot,
6050 selection: &mut Selection<Point>,
6051 edits: &mut Vec<(Range<Point>, String)>,
6052 delta_for_start_row: u32,
6053 cx: &AppContext,
6054 ) -> u32 {
6055 let settings = buffer.settings_at(selection.start, cx);
6056 let tab_size = settings.tab_size.get();
6057 let indent_kind = if settings.hard_tabs {
6058 IndentKind::Tab
6059 } else {
6060 IndentKind::Space
6061 };
6062 let mut start_row = selection.start.row;
6063 let mut end_row = selection.end.row + 1;
6064
6065 // If a selection ends at the beginning of a line, don't indent
6066 // that last line.
6067 if selection.end.column == 0 && selection.end.row > selection.start.row {
6068 end_row -= 1;
6069 }
6070
6071 // Avoid re-indenting a row that has already been indented by a
6072 // previous selection, but still update this selection's column
6073 // to reflect that indentation.
6074 if delta_for_start_row > 0 {
6075 start_row += 1;
6076 selection.start.column += delta_for_start_row;
6077 if selection.end.row == selection.start.row {
6078 selection.end.column += delta_for_start_row;
6079 }
6080 }
6081
6082 let mut delta_for_end_row = 0;
6083 let has_multiple_rows = start_row + 1 != end_row;
6084 for row in start_row..end_row {
6085 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
6086 let indent_delta = match (current_indent.kind, indent_kind) {
6087 (IndentKind::Space, IndentKind::Space) => {
6088 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
6089 IndentSize::spaces(columns_to_next_tab_stop)
6090 }
6091 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
6092 (_, IndentKind::Tab) => IndentSize::tab(),
6093 };
6094
6095 let start = if has_multiple_rows || current_indent.len < selection.start.column {
6096 0
6097 } else {
6098 selection.start.column
6099 };
6100 let row_start = Point::new(row, start);
6101 edits.push((
6102 row_start..row_start,
6103 indent_delta.chars().collect::<String>(),
6104 ));
6105
6106 // Update this selection's endpoints to reflect the indentation.
6107 if row == selection.start.row {
6108 selection.start.column += indent_delta.len;
6109 }
6110 if row == selection.end.row {
6111 selection.end.column += indent_delta.len;
6112 delta_for_end_row = indent_delta.len;
6113 }
6114 }
6115
6116 if selection.start.row == selection.end.row {
6117 delta_for_start_row + delta_for_end_row
6118 } else {
6119 delta_for_end_row
6120 }
6121 }
6122
6123 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
6124 if self.read_only(cx) {
6125 return;
6126 }
6127 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6128 let selections = self.selections.all::<Point>(cx);
6129 let mut deletion_ranges = Vec::new();
6130 let mut last_outdent = None;
6131 {
6132 let buffer = self.buffer.read(cx);
6133 let snapshot = buffer.snapshot(cx);
6134 for selection in &selections {
6135 let settings = buffer.settings_at(selection.start, cx);
6136 let tab_size = settings.tab_size.get();
6137 let mut rows = selection.spanned_rows(false, &display_map);
6138
6139 // Avoid re-outdenting a row that has already been outdented by a
6140 // previous selection.
6141 if let Some(last_row) = last_outdent {
6142 if last_row == rows.start {
6143 rows.start = rows.start.next_row();
6144 }
6145 }
6146 let has_multiple_rows = rows.len() > 1;
6147 for row in rows.iter_rows() {
6148 let indent_size = snapshot.indent_size_for_line(row);
6149 if indent_size.len > 0 {
6150 let deletion_len = match indent_size.kind {
6151 IndentKind::Space => {
6152 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6153 if columns_to_prev_tab_stop == 0 {
6154 tab_size
6155 } else {
6156 columns_to_prev_tab_stop
6157 }
6158 }
6159 IndentKind::Tab => 1,
6160 };
6161 let start = if has_multiple_rows
6162 || deletion_len > selection.start.column
6163 || indent_size.len < selection.start.column
6164 {
6165 0
6166 } else {
6167 selection.start.column - deletion_len
6168 };
6169 deletion_ranges.push(
6170 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6171 );
6172 last_outdent = Some(row);
6173 }
6174 }
6175 }
6176 }
6177
6178 self.transact(cx, |this, cx| {
6179 this.buffer.update(cx, |buffer, cx| {
6180 let empty_str: Arc<str> = Arc::default();
6181 buffer.edit(
6182 deletion_ranges
6183 .into_iter()
6184 .map(|range| (range, empty_str.clone())),
6185 None,
6186 cx,
6187 );
6188 });
6189 let selections = this.selections.all::<usize>(cx);
6190 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6191 });
6192 }
6193
6194 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
6195 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6196 let selections = self.selections.all::<Point>(cx);
6197
6198 let mut new_cursors = Vec::new();
6199 let mut edit_ranges = Vec::new();
6200 let mut selections = selections.iter().peekable();
6201 while let Some(selection) = selections.next() {
6202 let mut rows = selection.spanned_rows(false, &display_map);
6203 let goal_display_column = selection.head().to_display_point(&display_map).column();
6204
6205 // Accumulate contiguous regions of rows that we want to delete.
6206 while let Some(next_selection) = selections.peek() {
6207 let next_rows = next_selection.spanned_rows(false, &display_map);
6208 if next_rows.start <= rows.end {
6209 rows.end = next_rows.end;
6210 selections.next().unwrap();
6211 } else {
6212 break;
6213 }
6214 }
6215
6216 let buffer = &display_map.buffer_snapshot;
6217 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6218 let edit_end;
6219 let cursor_buffer_row;
6220 if buffer.max_point().row >= rows.end.0 {
6221 // If there's a line after the range, delete the \n from the end of the row range
6222 // and position the cursor on the next line.
6223 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6224 cursor_buffer_row = rows.end;
6225 } else {
6226 // If there isn't a line after the range, delete the \n from the line before the
6227 // start of the row range and position the cursor there.
6228 edit_start = edit_start.saturating_sub(1);
6229 edit_end = buffer.len();
6230 cursor_buffer_row = rows.start.previous_row();
6231 }
6232
6233 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6234 *cursor.column_mut() =
6235 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6236
6237 new_cursors.push((
6238 selection.id,
6239 buffer.anchor_after(cursor.to_point(&display_map)),
6240 ));
6241 edit_ranges.push(edit_start..edit_end);
6242 }
6243
6244 self.transact(cx, |this, cx| {
6245 let buffer = this.buffer.update(cx, |buffer, cx| {
6246 let empty_str: Arc<str> = Arc::default();
6247 buffer.edit(
6248 edit_ranges
6249 .into_iter()
6250 .map(|range| (range, empty_str.clone())),
6251 None,
6252 cx,
6253 );
6254 buffer.snapshot(cx)
6255 });
6256 let new_selections = new_cursors
6257 .into_iter()
6258 .map(|(id, cursor)| {
6259 let cursor = cursor.to_point(&buffer);
6260 Selection {
6261 id,
6262 start: cursor,
6263 end: cursor,
6264 reversed: false,
6265 goal: SelectionGoal::None,
6266 }
6267 })
6268 .collect();
6269
6270 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6271 s.select(new_selections);
6272 });
6273 });
6274 }
6275
6276 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6277 if self.read_only(cx) {
6278 return;
6279 }
6280 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6281 for selection in self.selections.all::<Point>(cx) {
6282 let start = MultiBufferRow(selection.start.row);
6283 let end = if selection.start.row == selection.end.row {
6284 MultiBufferRow(selection.start.row + 1)
6285 } else {
6286 MultiBufferRow(selection.end.row)
6287 };
6288
6289 if let Some(last_row_range) = row_ranges.last_mut() {
6290 if start <= last_row_range.end {
6291 last_row_range.end = end;
6292 continue;
6293 }
6294 }
6295 row_ranges.push(start..end);
6296 }
6297
6298 let snapshot = self.buffer.read(cx).snapshot(cx);
6299 let mut cursor_positions = Vec::new();
6300 for row_range in &row_ranges {
6301 let anchor = snapshot.anchor_before(Point::new(
6302 row_range.end.previous_row().0,
6303 snapshot.line_len(row_range.end.previous_row()),
6304 ));
6305 cursor_positions.push(anchor..anchor);
6306 }
6307
6308 self.transact(cx, |this, cx| {
6309 for row_range in row_ranges.into_iter().rev() {
6310 for row in row_range.iter_rows().rev() {
6311 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6312 let next_line_row = row.next_row();
6313 let indent = snapshot.indent_size_for_line(next_line_row);
6314 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6315
6316 let replace = if snapshot.line_len(next_line_row) > indent.len {
6317 " "
6318 } else {
6319 ""
6320 };
6321
6322 this.buffer.update(cx, |buffer, cx| {
6323 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6324 });
6325 }
6326 }
6327
6328 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6329 s.select_anchor_ranges(cursor_positions)
6330 });
6331 });
6332 }
6333
6334 pub fn sort_lines_case_sensitive(
6335 &mut self,
6336 _: &SortLinesCaseSensitive,
6337 cx: &mut ViewContext<Self>,
6338 ) {
6339 self.manipulate_lines(cx, |lines| lines.sort())
6340 }
6341
6342 pub fn sort_lines_case_insensitive(
6343 &mut self,
6344 _: &SortLinesCaseInsensitive,
6345 cx: &mut ViewContext<Self>,
6346 ) {
6347 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6348 }
6349
6350 pub fn unique_lines_case_insensitive(
6351 &mut self,
6352 _: &UniqueLinesCaseInsensitive,
6353 cx: &mut ViewContext<Self>,
6354 ) {
6355 self.manipulate_lines(cx, |lines| {
6356 let mut seen = HashSet::default();
6357 lines.retain(|line| seen.insert(line.to_lowercase()));
6358 })
6359 }
6360
6361 pub fn unique_lines_case_sensitive(
6362 &mut self,
6363 _: &UniqueLinesCaseSensitive,
6364 cx: &mut ViewContext<Self>,
6365 ) {
6366 self.manipulate_lines(cx, |lines| {
6367 let mut seen = HashSet::default();
6368 lines.retain(|line| seen.insert(*line));
6369 })
6370 }
6371
6372 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6373 let mut revert_changes = HashMap::default();
6374 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6375 for hunk in hunks_for_rows(
6376 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6377 &multi_buffer_snapshot,
6378 ) {
6379 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6380 }
6381 if !revert_changes.is_empty() {
6382 self.transact(cx, |editor, cx| {
6383 editor.revert(revert_changes, cx);
6384 });
6385 }
6386 }
6387
6388 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6389 let Some(project) = self.project.clone() else {
6390 return;
6391 };
6392 self.reload(project, cx).detach_and_notify_err(cx);
6393 }
6394
6395 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6396 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6397 if !revert_changes.is_empty() {
6398 self.transact(cx, |editor, cx| {
6399 editor.revert(revert_changes, cx);
6400 });
6401 }
6402 }
6403
6404 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6405 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6406 let project_path = buffer.read(cx).project_path(cx)?;
6407 let project = self.project.as_ref()?.read(cx);
6408 let entry = project.entry_for_path(&project_path, cx)?;
6409 let parent = match &entry.canonical_path {
6410 Some(canonical_path) => canonical_path.to_path_buf(),
6411 None => project.absolute_path(&project_path, cx)?,
6412 }
6413 .parent()?
6414 .to_path_buf();
6415 Some(parent)
6416 }) {
6417 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6418 }
6419 }
6420
6421 fn gather_revert_changes(
6422 &mut self,
6423 selections: &[Selection<Anchor>],
6424 cx: &mut ViewContext<'_, Editor>,
6425 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6426 let mut revert_changes = HashMap::default();
6427 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6428 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6429 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6430 }
6431 revert_changes
6432 }
6433
6434 pub fn prepare_revert_change(
6435 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6436 multi_buffer: &Model<MultiBuffer>,
6437 hunk: &MultiBufferDiffHunk,
6438 cx: &AppContext,
6439 ) -> Option<()> {
6440 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6441 let buffer = buffer.read(cx);
6442 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6443 let buffer_snapshot = buffer.snapshot();
6444 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6445 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6446 probe
6447 .0
6448 .start
6449 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6450 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6451 }) {
6452 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6453 Some(())
6454 } else {
6455 None
6456 }
6457 }
6458
6459 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6460 self.manipulate_lines(cx, |lines| lines.reverse())
6461 }
6462
6463 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6464 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6465 }
6466
6467 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6468 where
6469 Fn: FnMut(&mut Vec<&str>),
6470 {
6471 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6472 let buffer = self.buffer.read(cx).snapshot(cx);
6473
6474 let mut edits = Vec::new();
6475
6476 let selections = self.selections.all::<Point>(cx);
6477 let mut selections = selections.iter().peekable();
6478 let mut contiguous_row_selections = Vec::new();
6479 let mut new_selections = Vec::new();
6480 let mut added_lines = 0;
6481 let mut removed_lines = 0;
6482
6483 while let Some(selection) = selections.next() {
6484 let (start_row, end_row) = consume_contiguous_rows(
6485 &mut contiguous_row_selections,
6486 selection,
6487 &display_map,
6488 &mut selections,
6489 );
6490
6491 let start_point = Point::new(start_row.0, 0);
6492 let end_point = Point::new(
6493 end_row.previous_row().0,
6494 buffer.line_len(end_row.previous_row()),
6495 );
6496 let text = buffer
6497 .text_for_range(start_point..end_point)
6498 .collect::<String>();
6499
6500 let mut lines = text.split('\n').collect_vec();
6501
6502 let lines_before = lines.len();
6503 callback(&mut lines);
6504 let lines_after = lines.len();
6505
6506 edits.push((start_point..end_point, lines.join("\n")));
6507
6508 // Selections must change based on added and removed line count
6509 let start_row =
6510 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6511 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6512 new_selections.push(Selection {
6513 id: selection.id,
6514 start: start_row,
6515 end: end_row,
6516 goal: SelectionGoal::None,
6517 reversed: selection.reversed,
6518 });
6519
6520 if lines_after > lines_before {
6521 added_lines += lines_after - lines_before;
6522 } else if lines_before > lines_after {
6523 removed_lines += lines_before - lines_after;
6524 }
6525 }
6526
6527 self.transact(cx, |this, cx| {
6528 let buffer = this.buffer.update(cx, |buffer, cx| {
6529 buffer.edit(edits, None, cx);
6530 buffer.snapshot(cx)
6531 });
6532
6533 // Recalculate offsets on newly edited buffer
6534 let new_selections = new_selections
6535 .iter()
6536 .map(|s| {
6537 let start_point = Point::new(s.start.0, 0);
6538 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6539 Selection {
6540 id: s.id,
6541 start: buffer.point_to_offset(start_point),
6542 end: buffer.point_to_offset(end_point),
6543 goal: s.goal,
6544 reversed: s.reversed,
6545 }
6546 })
6547 .collect();
6548
6549 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6550 s.select(new_selections);
6551 });
6552
6553 this.request_autoscroll(Autoscroll::fit(), cx);
6554 });
6555 }
6556
6557 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6558 self.manipulate_text(cx, |text| text.to_uppercase())
6559 }
6560
6561 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6562 self.manipulate_text(cx, |text| text.to_lowercase())
6563 }
6564
6565 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6566 self.manipulate_text(cx, |text| {
6567 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6568 // https://github.com/rutrum/convert-case/issues/16
6569 text.split('\n')
6570 .map(|line| line.to_case(Case::Title))
6571 .join("\n")
6572 })
6573 }
6574
6575 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6576 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6577 }
6578
6579 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6580 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6581 }
6582
6583 pub fn convert_to_upper_camel_case(
6584 &mut self,
6585 _: &ConvertToUpperCamelCase,
6586 cx: &mut ViewContext<Self>,
6587 ) {
6588 self.manipulate_text(cx, |text| {
6589 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6590 // https://github.com/rutrum/convert-case/issues/16
6591 text.split('\n')
6592 .map(|line| line.to_case(Case::UpperCamel))
6593 .join("\n")
6594 })
6595 }
6596
6597 pub fn convert_to_lower_camel_case(
6598 &mut self,
6599 _: &ConvertToLowerCamelCase,
6600 cx: &mut ViewContext<Self>,
6601 ) {
6602 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6603 }
6604
6605 pub fn convert_to_opposite_case(
6606 &mut self,
6607 _: &ConvertToOppositeCase,
6608 cx: &mut ViewContext<Self>,
6609 ) {
6610 self.manipulate_text(cx, |text| {
6611 text.chars()
6612 .fold(String::with_capacity(text.len()), |mut t, c| {
6613 if c.is_uppercase() {
6614 t.extend(c.to_lowercase());
6615 } else {
6616 t.extend(c.to_uppercase());
6617 }
6618 t
6619 })
6620 })
6621 }
6622
6623 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6624 where
6625 Fn: FnMut(&str) -> String,
6626 {
6627 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6628 let buffer = self.buffer.read(cx).snapshot(cx);
6629
6630 let mut new_selections = Vec::new();
6631 let mut edits = Vec::new();
6632 let mut selection_adjustment = 0i32;
6633
6634 for selection in self.selections.all::<usize>(cx) {
6635 let selection_is_empty = selection.is_empty();
6636
6637 let (start, end) = if selection_is_empty {
6638 let word_range = movement::surrounding_word(
6639 &display_map,
6640 selection.start.to_display_point(&display_map),
6641 );
6642 let start = word_range.start.to_offset(&display_map, Bias::Left);
6643 let end = word_range.end.to_offset(&display_map, Bias::Left);
6644 (start, end)
6645 } else {
6646 (selection.start, selection.end)
6647 };
6648
6649 let text = buffer.text_for_range(start..end).collect::<String>();
6650 let old_length = text.len() as i32;
6651 let text = callback(&text);
6652
6653 new_selections.push(Selection {
6654 start: (start as i32 - selection_adjustment) as usize,
6655 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6656 goal: SelectionGoal::None,
6657 ..selection
6658 });
6659
6660 selection_adjustment += old_length - text.len() as i32;
6661
6662 edits.push((start..end, text));
6663 }
6664
6665 self.transact(cx, |this, cx| {
6666 this.buffer.update(cx, |buffer, cx| {
6667 buffer.edit(edits, None, cx);
6668 });
6669
6670 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6671 s.select(new_selections);
6672 });
6673
6674 this.request_autoscroll(Autoscroll::fit(), cx);
6675 });
6676 }
6677
6678 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6679 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6680 let buffer = &display_map.buffer_snapshot;
6681 let selections = self.selections.all::<Point>(cx);
6682
6683 let mut edits = Vec::new();
6684 let mut selections_iter = selections.iter().peekable();
6685 while let Some(selection) = selections_iter.next() {
6686 // Avoid duplicating the same lines twice.
6687 let mut rows = selection.spanned_rows(false, &display_map);
6688
6689 while let Some(next_selection) = selections_iter.peek() {
6690 let next_rows = next_selection.spanned_rows(false, &display_map);
6691 if next_rows.start < rows.end {
6692 rows.end = next_rows.end;
6693 selections_iter.next().unwrap();
6694 } else {
6695 break;
6696 }
6697 }
6698
6699 // Copy the text from the selected row region and splice it either at the start
6700 // or end of the region.
6701 let start = Point::new(rows.start.0, 0);
6702 let end = Point::new(
6703 rows.end.previous_row().0,
6704 buffer.line_len(rows.end.previous_row()),
6705 );
6706 let text = buffer
6707 .text_for_range(start..end)
6708 .chain(Some("\n"))
6709 .collect::<String>();
6710 let insert_location = if upwards {
6711 Point::new(rows.end.0, 0)
6712 } else {
6713 start
6714 };
6715 edits.push((insert_location..insert_location, text));
6716 }
6717
6718 self.transact(cx, |this, cx| {
6719 this.buffer.update(cx, |buffer, cx| {
6720 buffer.edit(edits, None, cx);
6721 });
6722
6723 this.request_autoscroll(Autoscroll::fit(), cx);
6724 });
6725 }
6726
6727 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6728 self.duplicate_line(true, cx);
6729 }
6730
6731 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6732 self.duplicate_line(false, cx);
6733 }
6734
6735 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6736 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6737 let buffer = self.buffer.read(cx).snapshot(cx);
6738
6739 let mut edits = Vec::new();
6740 let mut unfold_ranges = Vec::new();
6741 let mut refold_ranges = Vec::new();
6742
6743 let selections = self.selections.all::<Point>(cx);
6744 let mut selections = selections.iter().peekable();
6745 let mut contiguous_row_selections = Vec::new();
6746 let mut new_selections = Vec::new();
6747
6748 while let Some(selection) = selections.next() {
6749 // Find all the selections that span a contiguous row range
6750 let (start_row, end_row) = consume_contiguous_rows(
6751 &mut contiguous_row_selections,
6752 selection,
6753 &display_map,
6754 &mut selections,
6755 );
6756
6757 // Move the text spanned by the row range to be before the line preceding the row range
6758 if start_row.0 > 0 {
6759 let range_to_move = Point::new(
6760 start_row.previous_row().0,
6761 buffer.line_len(start_row.previous_row()),
6762 )
6763 ..Point::new(
6764 end_row.previous_row().0,
6765 buffer.line_len(end_row.previous_row()),
6766 );
6767 let insertion_point = display_map
6768 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6769 .0;
6770
6771 // Don't move lines across excerpts
6772 if buffer
6773 .excerpt_boundaries_in_range((
6774 Bound::Excluded(insertion_point),
6775 Bound::Included(range_to_move.end),
6776 ))
6777 .next()
6778 .is_none()
6779 {
6780 let text = buffer
6781 .text_for_range(range_to_move.clone())
6782 .flat_map(|s| s.chars())
6783 .skip(1)
6784 .chain(['\n'])
6785 .collect::<String>();
6786
6787 edits.push((
6788 buffer.anchor_after(range_to_move.start)
6789 ..buffer.anchor_before(range_to_move.end),
6790 String::new(),
6791 ));
6792 let insertion_anchor = buffer.anchor_after(insertion_point);
6793 edits.push((insertion_anchor..insertion_anchor, text));
6794
6795 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6796
6797 // Move selections up
6798 new_selections.extend(contiguous_row_selections.drain(..).map(
6799 |mut selection| {
6800 selection.start.row -= row_delta;
6801 selection.end.row -= row_delta;
6802 selection
6803 },
6804 ));
6805
6806 // Move folds up
6807 unfold_ranges.push(range_to_move.clone());
6808 for fold in display_map.folds_in_range(
6809 buffer.anchor_before(range_to_move.start)
6810 ..buffer.anchor_after(range_to_move.end),
6811 ) {
6812 let mut start = fold.range.start.to_point(&buffer);
6813 let mut end = fold.range.end.to_point(&buffer);
6814 start.row -= row_delta;
6815 end.row -= row_delta;
6816 refold_ranges.push((start..end, fold.placeholder.clone()));
6817 }
6818 }
6819 }
6820
6821 // If we didn't move line(s), preserve the existing selections
6822 new_selections.append(&mut contiguous_row_selections);
6823 }
6824
6825 self.transact(cx, |this, cx| {
6826 this.unfold_ranges(&unfold_ranges, true, true, cx);
6827 this.buffer.update(cx, |buffer, cx| {
6828 for (range, text) in edits {
6829 buffer.edit([(range, text)], None, cx);
6830 }
6831 });
6832 this.fold_ranges(refold_ranges, true, cx);
6833 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6834 s.select(new_selections);
6835 })
6836 });
6837 }
6838
6839 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6840 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6841 let buffer = self.buffer.read(cx).snapshot(cx);
6842
6843 let mut edits = Vec::new();
6844 let mut unfold_ranges = Vec::new();
6845 let mut refold_ranges = Vec::new();
6846
6847 let selections = self.selections.all::<Point>(cx);
6848 let mut selections = selections.iter().peekable();
6849 let mut contiguous_row_selections = Vec::new();
6850 let mut new_selections = Vec::new();
6851
6852 while let Some(selection) = selections.next() {
6853 // Find all the selections that span a contiguous row range
6854 let (start_row, end_row) = consume_contiguous_rows(
6855 &mut contiguous_row_selections,
6856 selection,
6857 &display_map,
6858 &mut selections,
6859 );
6860
6861 // Move the text spanned by the row range to be after the last line of the row range
6862 if end_row.0 <= buffer.max_point().row {
6863 let range_to_move =
6864 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6865 let insertion_point = display_map
6866 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6867 .0;
6868
6869 // Don't move lines across excerpt boundaries
6870 if buffer
6871 .excerpt_boundaries_in_range((
6872 Bound::Excluded(range_to_move.start),
6873 Bound::Included(insertion_point),
6874 ))
6875 .next()
6876 .is_none()
6877 {
6878 let mut text = String::from("\n");
6879 text.extend(buffer.text_for_range(range_to_move.clone()));
6880 text.pop(); // Drop trailing newline
6881 edits.push((
6882 buffer.anchor_after(range_to_move.start)
6883 ..buffer.anchor_before(range_to_move.end),
6884 String::new(),
6885 ));
6886 let insertion_anchor = buffer.anchor_after(insertion_point);
6887 edits.push((insertion_anchor..insertion_anchor, text));
6888
6889 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6890
6891 // Move selections down
6892 new_selections.extend(contiguous_row_selections.drain(..).map(
6893 |mut selection| {
6894 selection.start.row += row_delta;
6895 selection.end.row += row_delta;
6896 selection
6897 },
6898 ));
6899
6900 // Move folds down
6901 unfold_ranges.push(range_to_move.clone());
6902 for fold in display_map.folds_in_range(
6903 buffer.anchor_before(range_to_move.start)
6904 ..buffer.anchor_after(range_to_move.end),
6905 ) {
6906 let mut start = fold.range.start.to_point(&buffer);
6907 let mut end = fold.range.end.to_point(&buffer);
6908 start.row += row_delta;
6909 end.row += row_delta;
6910 refold_ranges.push((start..end, fold.placeholder.clone()));
6911 }
6912 }
6913 }
6914
6915 // If we didn't move line(s), preserve the existing selections
6916 new_selections.append(&mut contiguous_row_selections);
6917 }
6918
6919 self.transact(cx, |this, cx| {
6920 this.unfold_ranges(&unfold_ranges, true, true, cx);
6921 this.buffer.update(cx, |buffer, cx| {
6922 for (range, text) in edits {
6923 buffer.edit([(range, text)], None, cx);
6924 }
6925 });
6926 this.fold_ranges(refold_ranges, true, cx);
6927 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6928 });
6929 }
6930
6931 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6932 let text_layout_details = &self.text_layout_details(cx);
6933 self.transact(cx, |this, cx| {
6934 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6935 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6936 let line_mode = s.line_mode;
6937 s.move_with(|display_map, selection| {
6938 if !selection.is_empty() || line_mode {
6939 return;
6940 }
6941
6942 let mut head = selection.head();
6943 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6944 if head.column() == display_map.line_len(head.row()) {
6945 transpose_offset = display_map
6946 .buffer_snapshot
6947 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6948 }
6949
6950 if transpose_offset == 0 {
6951 return;
6952 }
6953
6954 *head.column_mut() += 1;
6955 head = display_map.clip_point(head, Bias::Right);
6956 let goal = SelectionGoal::HorizontalPosition(
6957 display_map
6958 .x_for_display_point(head, text_layout_details)
6959 .into(),
6960 );
6961 selection.collapse_to(head, goal);
6962
6963 let transpose_start = display_map
6964 .buffer_snapshot
6965 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6966 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6967 let transpose_end = display_map
6968 .buffer_snapshot
6969 .clip_offset(transpose_offset + 1, Bias::Right);
6970 if let Some(ch) =
6971 display_map.buffer_snapshot.chars_at(transpose_start).next()
6972 {
6973 edits.push((transpose_start..transpose_offset, String::new()));
6974 edits.push((transpose_end..transpose_end, ch.to_string()));
6975 }
6976 }
6977 });
6978 edits
6979 });
6980 this.buffer
6981 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6982 let selections = this.selections.all::<usize>(cx);
6983 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6984 s.select(selections);
6985 });
6986 });
6987 }
6988
6989 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6990 self.rewrap_impl(true, cx)
6991 }
6992
6993 pub fn rewrap_impl(&mut self, only_text: bool, cx: &mut ViewContext<Self>) {
6994 let buffer = self.buffer.read(cx).snapshot(cx);
6995 let selections = self.selections.all::<Point>(cx);
6996 let mut selections = selections.iter().peekable();
6997
6998 let mut edits = Vec::new();
6999 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
7000
7001 while let Some(selection) = selections.next() {
7002 let mut start_row = selection.start.row;
7003 let mut end_row = selection.end.row;
7004
7005 // Skip selections that overlap with a range that has already been rewrapped.
7006 let selection_range = start_row..end_row;
7007 if rewrapped_row_ranges
7008 .iter()
7009 .any(|range| range.overlaps(&selection_range))
7010 {
7011 continue;
7012 }
7013
7014 let mut should_rewrap = !only_text;
7015
7016 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
7017 match language_scope.language_name().0.as_ref() {
7018 "Markdown" | "Plain Text" => {
7019 should_rewrap = true;
7020 }
7021 _ => {}
7022 }
7023 }
7024
7025 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
7026
7027 // Since not all lines in the selection may be at the same indent
7028 // level, choose the indent size that is the most common between all
7029 // of the lines.
7030 //
7031 // If there is a tie, we use the deepest indent.
7032 let (indent_size, indent_end) = {
7033 let mut indent_size_occurrences = HashMap::default();
7034 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
7035
7036 for row in start_row..=end_row {
7037 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
7038 rows_by_indent_size.entry(indent).or_default().push(row);
7039 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
7040 }
7041
7042 let indent_size = indent_size_occurrences
7043 .into_iter()
7044 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
7045 .map(|(indent, _)| indent)
7046 .unwrap_or_default();
7047 let row = rows_by_indent_size[&indent_size][0];
7048 let indent_end = Point::new(row, indent_size.len);
7049
7050 (indent_size, indent_end)
7051 };
7052
7053 let mut line_prefix = indent_size.chars().collect::<String>();
7054
7055 if let Some(comment_prefix) =
7056 buffer
7057 .language_scope_at(selection.head())
7058 .and_then(|language| {
7059 language
7060 .line_comment_prefixes()
7061 .iter()
7062 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
7063 .cloned()
7064 })
7065 {
7066 line_prefix.push_str(&comment_prefix);
7067 should_rewrap = true;
7068 }
7069
7070 if !should_rewrap {
7071 continue;
7072 }
7073
7074 if selection.is_empty() {
7075 'expand_upwards: while start_row > 0 {
7076 let prev_row = start_row - 1;
7077 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
7078 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
7079 {
7080 start_row = prev_row;
7081 } else {
7082 break 'expand_upwards;
7083 }
7084 }
7085
7086 'expand_downwards: while end_row < buffer.max_point().row {
7087 let next_row = end_row + 1;
7088 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
7089 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
7090 {
7091 end_row = next_row;
7092 } else {
7093 break 'expand_downwards;
7094 }
7095 }
7096 }
7097
7098 let start = Point::new(start_row, 0);
7099 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
7100 let selection_text = buffer.text_for_range(start..end).collect::<String>();
7101 let Some(lines_without_prefixes) = selection_text
7102 .lines()
7103 .map(|line| {
7104 line.strip_prefix(&line_prefix)
7105 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
7106 .ok_or_else(|| {
7107 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
7108 })
7109 })
7110 .collect::<Result<Vec<_>, _>>()
7111 .log_err()
7112 else {
7113 continue;
7114 };
7115
7116 let wrap_column = buffer
7117 .settings_at(Point::new(start_row, 0), cx)
7118 .preferred_line_length as usize;
7119 let wrapped_text = wrap_with_prefix(
7120 line_prefix,
7121 lines_without_prefixes.join(" "),
7122 wrap_column,
7123 tab_size,
7124 );
7125
7126 let diff = TextDiff::from_lines(&selection_text, &wrapped_text);
7127 let mut offset = start.to_offset(&buffer);
7128 let mut moved_since_edit = true;
7129
7130 for change in diff.iter_all_changes() {
7131 let value = change.value();
7132 match change.tag() {
7133 ChangeTag::Equal => {
7134 offset += value.len();
7135 moved_since_edit = true;
7136 }
7137 ChangeTag::Delete => {
7138 let start = buffer.anchor_after(offset);
7139 let end = buffer.anchor_before(offset + value.len());
7140
7141 if moved_since_edit {
7142 edits.push((start..end, String::new()));
7143 } else {
7144 edits.last_mut().unwrap().0.end = end;
7145 }
7146
7147 offset += value.len();
7148 moved_since_edit = false;
7149 }
7150 ChangeTag::Insert => {
7151 if moved_since_edit {
7152 let anchor = buffer.anchor_after(offset);
7153 edits.push((anchor..anchor, value.to_string()));
7154 } else {
7155 edits.last_mut().unwrap().1.push_str(value);
7156 }
7157
7158 moved_since_edit = false;
7159 }
7160 }
7161 }
7162
7163 rewrapped_row_ranges.push(start_row..=end_row);
7164 }
7165
7166 self.buffer
7167 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7168 }
7169
7170 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7171 let mut text = String::new();
7172 let buffer = self.buffer.read(cx).snapshot(cx);
7173 let mut selections = self.selections.all::<Point>(cx);
7174 let mut clipboard_selections = Vec::with_capacity(selections.len());
7175 {
7176 let max_point = buffer.max_point();
7177 let mut is_first = true;
7178 for selection in &mut selections {
7179 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7180 if is_entire_line {
7181 selection.start = Point::new(selection.start.row, 0);
7182 if !selection.is_empty() && selection.end.column == 0 {
7183 selection.end = cmp::min(max_point, selection.end);
7184 } else {
7185 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7186 }
7187 selection.goal = SelectionGoal::None;
7188 }
7189 if is_first {
7190 is_first = false;
7191 } else {
7192 text += "\n";
7193 }
7194 let mut len = 0;
7195 for chunk in buffer.text_for_range(selection.start..selection.end) {
7196 text.push_str(chunk);
7197 len += chunk.len();
7198 }
7199 clipboard_selections.push(ClipboardSelection {
7200 len,
7201 is_entire_line,
7202 first_line_indent: buffer
7203 .indent_size_for_line(MultiBufferRow(selection.start.row))
7204 .len,
7205 });
7206 }
7207 }
7208
7209 self.transact(cx, |this, cx| {
7210 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7211 s.select(selections);
7212 });
7213 this.insert("", cx);
7214 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7215 text,
7216 clipboard_selections,
7217 ));
7218 });
7219 }
7220
7221 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7222 let selections = self.selections.all::<Point>(cx);
7223 let buffer = self.buffer.read(cx).read(cx);
7224 let mut text = String::new();
7225
7226 let mut clipboard_selections = Vec::with_capacity(selections.len());
7227 {
7228 let max_point = buffer.max_point();
7229 let mut is_first = true;
7230 for selection in selections.iter() {
7231 let mut start = selection.start;
7232 let mut end = selection.end;
7233 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7234 if is_entire_line {
7235 start = Point::new(start.row, 0);
7236 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7237 }
7238 if is_first {
7239 is_first = false;
7240 } else {
7241 text += "\n";
7242 }
7243 let mut len = 0;
7244 for chunk in buffer.text_for_range(start..end) {
7245 text.push_str(chunk);
7246 len += chunk.len();
7247 }
7248 clipboard_selections.push(ClipboardSelection {
7249 len,
7250 is_entire_line,
7251 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7252 });
7253 }
7254 }
7255
7256 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7257 text,
7258 clipboard_selections,
7259 ));
7260 }
7261
7262 pub fn do_paste(
7263 &mut self,
7264 text: &String,
7265 clipboard_selections: Option<Vec<ClipboardSelection>>,
7266 handle_entire_lines: bool,
7267 cx: &mut ViewContext<Self>,
7268 ) {
7269 if self.read_only(cx) {
7270 return;
7271 }
7272
7273 let clipboard_text = Cow::Borrowed(text);
7274
7275 self.transact(cx, |this, cx| {
7276 if let Some(mut clipboard_selections) = clipboard_selections {
7277 let old_selections = this.selections.all::<usize>(cx);
7278 let all_selections_were_entire_line =
7279 clipboard_selections.iter().all(|s| s.is_entire_line);
7280 let first_selection_indent_column =
7281 clipboard_selections.first().map(|s| s.first_line_indent);
7282 if clipboard_selections.len() != old_selections.len() {
7283 clipboard_selections.drain(..);
7284 }
7285 let cursor_offset = this.selections.last::<usize>(cx).head();
7286 let mut auto_indent_on_paste = true;
7287
7288 this.buffer.update(cx, |buffer, cx| {
7289 let snapshot = buffer.read(cx);
7290 auto_indent_on_paste =
7291 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
7292
7293 let mut start_offset = 0;
7294 let mut edits = Vec::new();
7295 let mut original_indent_columns = Vec::new();
7296 for (ix, selection) in old_selections.iter().enumerate() {
7297 let to_insert;
7298 let entire_line;
7299 let original_indent_column;
7300 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7301 let end_offset = start_offset + clipboard_selection.len;
7302 to_insert = &clipboard_text[start_offset..end_offset];
7303 entire_line = clipboard_selection.is_entire_line;
7304 start_offset = end_offset + 1;
7305 original_indent_column = Some(clipboard_selection.first_line_indent);
7306 } else {
7307 to_insert = clipboard_text.as_str();
7308 entire_line = all_selections_were_entire_line;
7309 original_indent_column = first_selection_indent_column
7310 }
7311
7312 // If the corresponding selection was empty when this slice of the
7313 // clipboard text was written, then the entire line containing the
7314 // selection was copied. If this selection is also currently empty,
7315 // then paste the line before the current line of the buffer.
7316 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7317 let column = selection.start.to_point(&snapshot).column as usize;
7318 let line_start = selection.start - column;
7319 line_start..line_start
7320 } else {
7321 selection.range()
7322 };
7323
7324 edits.push((range, to_insert));
7325 original_indent_columns.extend(original_indent_column);
7326 }
7327 drop(snapshot);
7328
7329 buffer.edit(
7330 edits,
7331 if auto_indent_on_paste {
7332 Some(AutoindentMode::Block {
7333 original_indent_columns,
7334 })
7335 } else {
7336 None
7337 },
7338 cx,
7339 );
7340 });
7341
7342 let selections = this.selections.all::<usize>(cx);
7343 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7344 } else {
7345 this.insert(&clipboard_text, cx);
7346 }
7347 });
7348 }
7349
7350 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7351 if let Some(item) = cx.read_from_clipboard() {
7352 let entries = item.entries();
7353
7354 match entries.first() {
7355 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7356 // of all the pasted entries.
7357 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7358 .do_paste(
7359 clipboard_string.text(),
7360 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7361 true,
7362 cx,
7363 ),
7364 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7365 }
7366 }
7367 }
7368
7369 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7370 if self.read_only(cx) {
7371 return;
7372 }
7373
7374 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7375 if let Some((selections, _)) =
7376 self.selection_history.transaction(transaction_id).cloned()
7377 {
7378 self.change_selections(None, cx, |s| {
7379 s.select_anchors(selections.to_vec());
7380 });
7381 }
7382 self.request_autoscroll(Autoscroll::fit(), cx);
7383 self.unmark_text(cx);
7384 self.refresh_inline_completion(true, false, cx);
7385 cx.emit(EditorEvent::Edited { transaction_id });
7386 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7387 }
7388 }
7389
7390 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7391 if self.read_only(cx) {
7392 return;
7393 }
7394
7395 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7396 if let Some((_, Some(selections))) =
7397 self.selection_history.transaction(transaction_id).cloned()
7398 {
7399 self.change_selections(None, cx, |s| {
7400 s.select_anchors(selections.to_vec());
7401 });
7402 }
7403 self.request_autoscroll(Autoscroll::fit(), cx);
7404 self.unmark_text(cx);
7405 self.refresh_inline_completion(true, false, cx);
7406 cx.emit(EditorEvent::Edited { transaction_id });
7407 }
7408 }
7409
7410 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7411 self.buffer
7412 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7413 }
7414
7415 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7416 self.buffer
7417 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7418 }
7419
7420 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7421 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7422 let line_mode = s.line_mode;
7423 s.move_with(|map, selection| {
7424 let cursor = if selection.is_empty() && !line_mode {
7425 movement::left(map, selection.start)
7426 } else {
7427 selection.start
7428 };
7429 selection.collapse_to(cursor, SelectionGoal::None);
7430 });
7431 })
7432 }
7433
7434 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7435 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7436 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7437 })
7438 }
7439
7440 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7441 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7442 let line_mode = s.line_mode;
7443 s.move_with(|map, selection| {
7444 let cursor = if selection.is_empty() && !line_mode {
7445 movement::right(map, selection.end)
7446 } else {
7447 selection.end
7448 };
7449 selection.collapse_to(cursor, SelectionGoal::None)
7450 });
7451 })
7452 }
7453
7454 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7455 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7456 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7457 })
7458 }
7459
7460 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7461 if self.take_rename(true, cx).is_some() {
7462 return;
7463 }
7464
7465 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7466 cx.propagate();
7467 return;
7468 }
7469
7470 let text_layout_details = &self.text_layout_details(cx);
7471 let selection_count = self.selections.count();
7472 let first_selection = self.selections.first_anchor();
7473
7474 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7475 let line_mode = s.line_mode;
7476 s.move_with(|map, selection| {
7477 if !selection.is_empty() && !line_mode {
7478 selection.goal = SelectionGoal::None;
7479 }
7480 let (cursor, goal) = movement::up(
7481 map,
7482 selection.start,
7483 selection.goal,
7484 false,
7485 text_layout_details,
7486 );
7487 selection.collapse_to(cursor, goal);
7488 });
7489 });
7490
7491 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7492 {
7493 cx.propagate();
7494 }
7495 }
7496
7497 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7498 if self.take_rename(true, cx).is_some() {
7499 return;
7500 }
7501
7502 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7503 cx.propagate();
7504 return;
7505 }
7506
7507 let text_layout_details = &self.text_layout_details(cx);
7508
7509 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7510 let line_mode = s.line_mode;
7511 s.move_with(|map, selection| {
7512 if !selection.is_empty() && !line_mode {
7513 selection.goal = SelectionGoal::None;
7514 }
7515 let (cursor, goal) = movement::up_by_rows(
7516 map,
7517 selection.start,
7518 action.lines,
7519 selection.goal,
7520 false,
7521 text_layout_details,
7522 );
7523 selection.collapse_to(cursor, goal);
7524 });
7525 })
7526 }
7527
7528 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7529 if self.take_rename(true, cx).is_some() {
7530 return;
7531 }
7532
7533 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7534 cx.propagate();
7535 return;
7536 }
7537
7538 let text_layout_details = &self.text_layout_details(cx);
7539
7540 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7541 let line_mode = s.line_mode;
7542 s.move_with(|map, selection| {
7543 if !selection.is_empty() && !line_mode {
7544 selection.goal = SelectionGoal::None;
7545 }
7546 let (cursor, goal) = movement::down_by_rows(
7547 map,
7548 selection.start,
7549 action.lines,
7550 selection.goal,
7551 false,
7552 text_layout_details,
7553 );
7554 selection.collapse_to(cursor, goal);
7555 });
7556 })
7557 }
7558
7559 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7560 let text_layout_details = &self.text_layout_details(cx);
7561 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7562 s.move_heads_with(|map, head, goal| {
7563 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7564 })
7565 })
7566 }
7567
7568 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7569 let text_layout_details = &self.text_layout_details(cx);
7570 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7571 s.move_heads_with(|map, head, goal| {
7572 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7573 })
7574 })
7575 }
7576
7577 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7578 let Some(row_count) = self.visible_row_count() else {
7579 return;
7580 };
7581
7582 let text_layout_details = &self.text_layout_details(cx);
7583
7584 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7585 s.move_heads_with(|map, head, goal| {
7586 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7587 })
7588 })
7589 }
7590
7591 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7592 if self.take_rename(true, cx).is_some() {
7593 return;
7594 }
7595
7596 if self
7597 .context_menu
7598 .write()
7599 .as_mut()
7600 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7601 .unwrap_or(false)
7602 {
7603 return;
7604 }
7605
7606 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7607 cx.propagate();
7608 return;
7609 }
7610
7611 let Some(row_count) = self.visible_row_count() else {
7612 return;
7613 };
7614
7615 let autoscroll = if action.center_cursor {
7616 Autoscroll::center()
7617 } else {
7618 Autoscroll::fit()
7619 };
7620
7621 let text_layout_details = &self.text_layout_details(cx);
7622
7623 self.change_selections(Some(autoscroll), cx, |s| {
7624 let line_mode = s.line_mode;
7625 s.move_with(|map, selection| {
7626 if !selection.is_empty() && !line_mode {
7627 selection.goal = SelectionGoal::None;
7628 }
7629 let (cursor, goal) = movement::up_by_rows(
7630 map,
7631 selection.end,
7632 row_count,
7633 selection.goal,
7634 false,
7635 text_layout_details,
7636 );
7637 selection.collapse_to(cursor, goal);
7638 });
7639 });
7640 }
7641
7642 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7643 let text_layout_details = &self.text_layout_details(cx);
7644 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7645 s.move_heads_with(|map, head, goal| {
7646 movement::up(map, head, goal, false, text_layout_details)
7647 })
7648 })
7649 }
7650
7651 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7652 self.take_rename(true, cx);
7653
7654 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7655 cx.propagate();
7656 return;
7657 }
7658
7659 let text_layout_details = &self.text_layout_details(cx);
7660 let selection_count = self.selections.count();
7661 let first_selection = self.selections.first_anchor();
7662
7663 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7664 let line_mode = s.line_mode;
7665 s.move_with(|map, selection| {
7666 if !selection.is_empty() && !line_mode {
7667 selection.goal = SelectionGoal::None;
7668 }
7669 let (cursor, goal) = movement::down(
7670 map,
7671 selection.end,
7672 selection.goal,
7673 false,
7674 text_layout_details,
7675 );
7676 selection.collapse_to(cursor, goal);
7677 });
7678 });
7679
7680 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7681 {
7682 cx.propagate();
7683 }
7684 }
7685
7686 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7687 let Some(row_count) = self.visible_row_count() else {
7688 return;
7689 };
7690
7691 let text_layout_details = &self.text_layout_details(cx);
7692
7693 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7694 s.move_heads_with(|map, head, goal| {
7695 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7696 })
7697 })
7698 }
7699
7700 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7701 if self.take_rename(true, cx).is_some() {
7702 return;
7703 }
7704
7705 if self
7706 .context_menu
7707 .write()
7708 .as_mut()
7709 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7710 .unwrap_or(false)
7711 {
7712 return;
7713 }
7714
7715 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7716 cx.propagate();
7717 return;
7718 }
7719
7720 let Some(row_count) = self.visible_row_count() else {
7721 return;
7722 };
7723
7724 let autoscroll = if action.center_cursor {
7725 Autoscroll::center()
7726 } else {
7727 Autoscroll::fit()
7728 };
7729
7730 let text_layout_details = &self.text_layout_details(cx);
7731 self.change_selections(Some(autoscroll), cx, |s| {
7732 let line_mode = s.line_mode;
7733 s.move_with(|map, selection| {
7734 if !selection.is_empty() && !line_mode {
7735 selection.goal = SelectionGoal::None;
7736 }
7737 let (cursor, goal) = movement::down_by_rows(
7738 map,
7739 selection.end,
7740 row_count,
7741 selection.goal,
7742 false,
7743 text_layout_details,
7744 );
7745 selection.collapse_to(cursor, goal);
7746 });
7747 });
7748 }
7749
7750 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7751 let text_layout_details = &self.text_layout_details(cx);
7752 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7753 s.move_heads_with(|map, head, goal| {
7754 movement::down(map, head, goal, false, text_layout_details)
7755 })
7756 });
7757 }
7758
7759 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7760 if let Some(context_menu) = self.context_menu.write().as_mut() {
7761 context_menu.select_first(self.completion_provider.as_deref(), cx);
7762 }
7763 }
7764
7765 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7766 if let Some(context_menu) = self.context_menu.write().as_mut() {
7767 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7768 }
7769 }
7770
7771 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7772 if let Some(context_menu) = self.context_menu.write().as_mut() {
7773 context_menu.select_next(self.completion_provider.as_deref(), cx);
7774 }
7775 }
7776
7777 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7778 if let Some(context_menu) = self.context_menu.write().as_mut() {
7779 context_menu.select_last(self.completion_provider.as_deref(), cx);
7780 }
7781 }
7782
7783 pub fn move_to_previous_word_start(
7784 &mut self,
7785 _: &MoveToPreviousWordStart,
7786 cx: &mut ViewContext<Self>,
7787 ) {
7788 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7789 s.move_cursors_with(|map, head, _| {
7790 (
7791 movement::previous_word_start(map, head),
7792 SelectionGoal::None,
7793 )
7794 });
7795 })
7796 }
7797
7798 pub fn move_to_previous_subword_start(
7799 &mut self,
7800 _: &MoveToPreviousSubwordStart,
7801 cx: &mut ViewContext<Self>,
7802 ) {
7803 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7804 s.move_cursors_with(|map, head, _| {
7805 (
7806 movement::previous_subword_start(map, head),
7807 SelectionGoal::None,
7808 )
7809 });
7810 })
7811 }
7812
7813 pub fn select_to_previous_word_start(
7814 &mut self,
7815 _: &SelectToPreviousWordStart,
7816 cx: &mut ViewContext<Self>,
7817 ) {
7818 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7819 s.move_heads_with(|map, head, _| {
7820 (
7821 movement::previous_word_start(map, head),
7822 SelectionGoal::None,
7823 )
7824 });
7825 })
7826 }
7827
7828 pub fn select_to_previous_subword_start(
7829 &mut self,
7830 _: &SelectToPreviousSubwordStart,
7831 cx: &mut ViewContext<Self>,
7832 ) {
7833 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7834 s.move_heads_with(|map, head, _| {
7835 (
7836 movement::previous_subword_start(map, head),
7837 SelectionGoal::None,
7838 )
7839 });
7840 })
7841 }
7842
7843 pub fn delete_to_previous_word_start(
7844 &mut self,
7845 action: &DeleteToPreviousWordStart,
7846 cx: &mut ViewContext<Self>,
7847 ) {
7848 self.transact(cx, |this, cx| {
7849 this.select_autoclose_pair(cx);
7850 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7851 let line_mode = s.line_mode;
7852 s.move_with(|map, selection| {
7853 if selection.is_empty() && !line_mode {
7854 let cursor = if action.ignore_newlines {
7855 movement::previous_word_start(map, selection.head())
7856 } else {
7857 movement::previous_word_start_or_newline(map, selection.head())
7858 };
7859 selection.set_head(cursor, SelectionGoal::None);
7860 }
7861 });
7862 });
7863 this.insert("", cx);
7864 });
7865 }
7866
7867 pub fn delete_to_previous_subword_start(
7868 &mut self,
7869 _: &DeleteToPreviousSubwordStart,
7870 cx: &mut ViewContext<Self>,
7871 ) {
7872 self.transact(cx, |this, cx| {
7873 this.select_autoclose_pair(cx);
7874 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7875 let line_mode = s.line_mode;
7876 s.move_with(|map, selection| {
7877 if selection.is_empty() && !line_mode {
7878 let cursor = movement::previous_subword_start(map, selection.head());
7879 selection.set_head(cursor, SelectionGoal::None);
7880 }
7881 });
7882 });
7883 this.insert("", cx);
7884 });
7885 }
7886
7887 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7888 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7889 s.move_cursors_with(|map, head, _| {
7890 (movement::next_word_end(map, head), SelectionGoal::None)
7891 });
7892 })
7893 }
7894
7895 pub fn move_to_next_subword_end(
7896 &mut self,
7897 _: &MoveToNextSubwordEnd,
7898 cx: &mut ViewContext<Self>,
7899 ) {
7900 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7901 s.move_cursors_with(|map, head, _| {
7902 (movement::next_subword_end(map, head), SelectionGoal::None)
7903 });
7904 })
7905 }
7906
7907 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7908 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7909 s.move_heads_with(|map, head, _| {
7910 (movement::next_word_end(map, head), SelectionGoal::None)
7911 });
7912 })
7913 }
7914
7915 pub fn select_to_next_subword_end(
7916 &mut self,
7917 _: &SelectToNextSubwordEnd,
7918 cx: &mut ViewContext<Self>,
7919 ) {
7920 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7921 s.move_heads_with(|map, head, _| {
7922 (movement::next_subword_end(map, head), SelectionGoal::None)
7923 });
7924 })
7925 }
7926
7927 pub fn delete_to_next_word_end(
7928 &mut self,
7929 action: &DeleteToNextWordEnd,
7930 cx: &mut ViewContext<Self>,
7931 ) {
7932 self.transact(cx, |this, cx| {
7933 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7934 let line_mode = s.line_mode;
7935 s.move_with(|map, selection| {
7936 if selection.is_empty() && !line_mode {
7937 let cursor = if action.ignore_newlines {
7938 movement::next_word_end(map, selection.head())
7939 } else {
7940 movement::next_word_end_or_newline(map, selection.head())
7941 };
7942 selection.set_head(cursor, SelectionGoal::None);
7943 }
7944 });
7945 });
7946 this.insert("", cx);
7947 });
7948 }
7949
7950 pub fn delete_to_next_subword_end(
7951 &mut self,
7952 _: &DeleteToNextSubwordEnd,
7953 cx: &mut ViewContext<Self>,
7954 ) {
7955 self.transact(cx, |this, cx| {
7956 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7957 s.move_with(|map, selection| {
7958 if selection.is_empty() {
7959 let cursor = movement::next_subword_end(map, selection.head());
7960 selection.set_head(cursor, SelectionGoal::None);
7961 }
7962 });
7963 });
7964 this.insert("", cx);
7965 });
7966 }
7967
7968 pub fn move_to_beginning_of_line(
7969 &mut self,
7970 action: &MoveToBeginningOfLine,
7971 cx: &mut ViewContext<Self>,
7972 ) {
7973 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7974 s.move_cursors_with(|map, head, _| {
7975 (
7976 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7977 SelectionGoal::None,
7978 )
7979 });
7980 })
7981 }
7982
7983 pub fn select_to_beginning_of_line(
7984 &mut self,
7985 action: &SelectToBeginningOfLine,
7986 cx: &mut ViewContext<Self>,
7987 ) {
7988 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7989 s.move_heads_with(|map, head, _| {
7990 (
7991 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7992 SelectionGoal::None,
7993 )
7994 });
7995 });
7996 }
7997
7998 pub fn delete_to_beginning_of_line(
7999 &mut self,
8000 _: &DeleteToBeginningOfLine,
8001 cx: &mut ViewContext<Self>,
8002 ) {
8003 self.transact(cx, |this, cx| {
8004 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8005 s.move_with(|_, selection| {
8006 selection.reversed = true;
8007 });
8008 });
8009
8010 this.select_to_beginning_of_line(
8011 &SelectToBeginningOfLine {
8012 stop_at_soft_wraps: false,
8013 },
8014 cx,
8015 );
8016 this.backspace(&Backspace, cx);
8017 });
8018 }
8019
8020 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
8021 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8022 s.move_cursors_with(|map, head, _| {
8023 (
8024 movement::line_end(map, head, action.stop_at_soft_wraps),
8025 SelectionGoal::None,
8026 )
8027 });
8028 })
8029 }
8030
8031 pub fn select_to_end_of_line(
8032 &mut self,
8033 action: &SelectToEndOfLine,
8034 cx: &mut ViewContext<Self>,
8035 ) {
8036 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8037 s.move_heads_with(|map, head, _| {
8038 (
8039 movement::line_end(map, head, action.stop_at_soft_wraps),
8040 SelectionGoal::None,
8041 )
8042 });
8043 })
8044 }
8045
8046 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
8047 self.transact(cx, |this, cx| {
8048 this.select_to_end_of_line(
8049 &SelectToEndOfLine {
8050 stop_at_soft_wraps: false,
8051 },
8052 cx,
8053 );
8054 this.delete(&Delete, cx);
8055 });
8056 }
8057
8058 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
8059 self.transact(cx, |this, cx| {
8060 this.select_to_end_of_line(
8061 &SelectToEndOfLine {
8062 stop_at_soft_wraps: false,
8063 },
8064 cx,
8065 );
8066 this.cut(&Cut, cx);
8067 });
8068 }
8069
8070 pub fn move_to_start_of_paragraph(
8071 &mut self,
8072 _: &MoveToStartOfParagraph,
8073 cx: &mut ViewContext<Self>,
8074 ) {
8075 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8076 cx.propagate();
8077 return;
8078 }
8079
8080 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8081 s.move_with(|map, selection| {
8082 selection.collapse_to(
8083 movement::start_of_paragraph(map, selection.head(), 1),
8084 SelectionGoal::None,
8085 )
8086 });
8087 })
8088 }
8089
8090 pub fn move_to_end_of_paragraph(
8091 &mut self,
8092 _: &MoveToEndOfParagraph,
8093 cx: &mut ViewContext<Self>,
8094 ) {
8095 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8096 cx.propagate();
8097 return;
8098 }
8099
8100 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8101 s.move_with(|map, selection| {
8102 selection.collapse_to(
8103 movement::end_of_paragraph(map, selection.head(), 1),
8104 SelectionGoal::None,
8105 )
8106 });
8107 })
8108 }
8109
8110 pub fn select_to_start_of_paragraph(
8111 &mut self,
8112 _: &SelectToStartOfParagraph,
8113 cx: &mut ViewContext<Self>,
8114 ) {
8115 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8116 cx.propagate();
8117 return;
8118 }
8119
8120 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8121 s.move_heads_with(|map, head, _| {
8122 (
8123 movement::start_of_paragraph(map, head, 1),
8124 SelectionGoal::None,
8125 )
8126 });
8127 })
8128 }
8129
8130 pub fn select_to_end_of_paragraph(
8131 &mut self,
8132 _: &SelectToEndOfParagraph,
8133 cx: &mut ViewContext<Self>,
8134 ) {
8135 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8136 cx.propagate();
8137 return;
8138 }
8139
8140 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8141 s.move_heads_with(|map, head, _| {
8142 (
8143 movement::end_of_paragraph(map, head, 1),
8144 SelectionGoal::None,
8145 )
8146 });
8147 })
8148 }
8149
8150 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
8151 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8152 cx.propagate();
8153 return;
8154 }
8155
8156 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8157 s.select_ranges(vec![0..0]);
8158 });
8159 }
8160
8161 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
8162 let mut selection = self.selections.last::<Point>(cx);
8163 selection.set_head(Point::zero(), SelectionGoal::None);
8164
8165 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8166 s.select(vec![selection]);
8167 });
8168 }
8169
8170 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
8171 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8172 cx.propagate();
8173 return;
8174 }
8175
8176 let cursor = self.buffer.read(cx).read(cx).len();
8177 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8178 s.select_ranges(vec![cursor..cursor])
8179 });
8180 }
8181
8182 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8183 self.nav_history = nav_history;
8184 }
8185
8186 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8187 self.nav_history.as_ref()
8188 }
8189
8190 fn push_to_nav_history(
8191 &mut self,
8192 cursor_anchor: Anchor,
8193 new_position: Option<Point>,
8194 cx: &mut ViewContext<Self>,
8195 ) {
8196 if let Some(nav_history) = self.nav_history.as_mut() {
8197 let buffer = self.buffer.read(cx).read(cx);
8198 let cursor_position = cursor_anchor.to_point(&buffer);
8199 let scroll_state = self.scroll_manager.anchor();
8200 let scroll_top_row = scroll_state.top_row(&buffer);
8201 drop(buffer);
8202
8203 if let Some(new_position) = new_position {
8204 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8205 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8206 return;
8207 }
8208 }
8209
8210 nav_history.push(
8211 Some(NavigationData {
8212 cursor_anchor,
8213 cursor_position,
8214 scroll_anchor: scroll_state,
8215 scroll_top_row,
8216 }),
8217 cx,
8218 );
8219 }
8220 }
8221
8222 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8223 let buffer = self.buffer.read(cx).snapshot(cx);
8224 let mut selection = self.selections.first::<usize>(cx);
8225 selection.set_head(buffer.len(), SelectionGoal::None);
8226 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8227 s.select(vec![selection]);
8228 });
8229 }
8230
8231 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8232 let end = self.buffer.read(cx).read(cx).len();
8233 self.change_selections(None, cx, |s| {
8234 s.select_ranges(vec![0..end]);
8235 });
8236 }
8237
8238 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8239 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8240 let mut selections = self.selections.all::<Point>(cx);
8241 let max_point = display_map.buffer_snapshot.max_point();
8242 for selection in &mut selections {
8243 let rows = selection.spanned_rows(true, &display_map);
8244 selection.start = Point::new(rows.start.0, 0);
8245 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8246 selection.reversed = false;
8247 }
8248 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8249 s.select(selections);
8250 });
8251 }
8252
8253 pub fn split_selection_into_lines(
8254 &mut self,
8255 _: &SplitSelectionIntoLines,
8256 cx: &mut ViewContext<Self>,
8257 ) {
8258 let mut to_unfold = Vec::new();
8259 let mut new_selection_ranges = Vec::new();
8260 {
8261 let selections = self.selections.all::<Point>(cx);
8262 let buffer = self.buffer.read(cx).read(cx);
8263 for selection in selections {
8264 for row in selection.start.row..selection.end.row {
8265 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8266 new_selection_ranges.push(cursor..cursor);
8267 }
8268 new_selection_ranges.push(selection.end..selection.end);
8269 to_unfold.push(selection.start..selection.end);
8270 }
8271 }
8272 self.unfold_ranges(&to_unfold, true, true, cx);
8273 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8274 s.select_ranges(new_selection_ranges);
8275 });
8276 }
8277
8278 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8279 self.add_selection(true, cx);
8280 }
8281
8282 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8283 self.add_selection(false, cx);
8284 }
8285
8286 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8287 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8288 let mut selections = self.selections.all::<Point>(cx);
8289 let text_layout_details = self.text_layout_details(cx);
8290 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8291 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8292 let range = oldest_selection.display_range(&display_map).sorted();
8293
8294 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8295 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8296 let positions = start_x.min(end_x)..start_x.max(end_x);
8297
8298 selections.clear();
8299 let mut stack = Vec::new();
8300 for row in range.start.row().0..=range.end.row().0 {
8301 if let Some(selection) = self.selections.build_columnar_selection(
8302 &display_map,
8303 DisplayRow(row),
8304 &positions,
8305 oldest_selection.reversed,
8306 &text_layout_details,
8307 ) {
8308 stack.push(selection.id);
8309 selections.push(selection);
8310 }
8311 }
8312
8313 if above {
8314 stack.reverse();
8315 }
8316
8317 AddSelectionsState { above, stack }
8318 });
8319
8320 let last_added_selection = *state.stack.last().unwrap();
8321 let mut new_selections = Vec::new();
8322 if above == state.above {
8323 let end_row = if above {
8324 DisplayRow(0)
8325 } else {
8326 display_map.max_point().row()
8327 };
8328
8329 'outer: for selection in selections {
8330 if selection.id == last_added_selection {
8331 let range = selection.display_range(&display_map).sorted();
8332 debug_assert_eq!(range.start.row(), range.end.row());
8333 let mut row = range.start.row();
8334 let positions =
8335 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8336 px(start)..px(end)
8337 } else {
8338 let start_x =
8339 display_map.x_for_display_point(range.start, &text_layout_details);
8340 let end_x =
8341 display_map.x_for_display_point(range.end, &text_layout_details);
8342 start_x.min(end_x)..start_x.max(end_x)
8343 };
8344
8345 while row != end_row {
8346 if above {
8347 row.0 -= 1;
8348 } else {
8349 row.0 += 1;
8350 }
8351
8352 if let Some(new_selection) = self.selections.build_columnar_selection(
8353 &display_map,
8354 row,
8355 &positions,
8356 selection.reversed,
8357 &text_layout_details,
8358 ) {
8359 state.stack.push(new_selection.id);
8360 if above {
8361 new_selections.push(new_selection);
8362 new_selections.push(selection);
8363 } else {
8364 new_selections.push(selection);
8365 new_selections.push(new_selection);
8366 }
8367
8368 continue 'outer;
8369 }
8370 }
8371 }
8372
8373 new_selections.push(selection);
8374 }
8375 } else {
8376 new_selections = selections;
8377 new_selections.retain(|s| s.id != last_added_selection);
8378 state.stack.pop();
8379 }
8380
8381 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8382 s.select(new_selections);
8383 });
8384 if state.stack.len() > 1 {
8385 self.add_selections_state = Some(state);
8386 }
8387 }
8388
8389 pub fn select_next_match_internal(
8390 &mut self,
8391 display_map: &DisplaySnapshot,
8392 replace_newest: bool,
8393 autoscroll: Option<Autoscroll>,
8394 cx: &mut ViewContext<Self>,
8395 ) -> Result<()> {
8396 fn select_next_match_ranges(
8397 this: &mut Editor,
8398 range: Range<usize>,
8399 replace_newest: bool,
8400 auto_scroll: Option<Autoscroll>,
8401 cx: &mut ViewContext<Editor>,
8402 ) {
8403 this.unfold_ranges(&[range.clone()], false, true, cx);
8404 this.change_selections(auto_scroll, cx, |s| {
8405 if replace_newest {
8406 s.delete(s.newest_anchor().id);
8407 }
8408 s.insert_range(range.clone());
8409 });
8410 }
8411
8412 let buffer = &display_map.buffer_snapshot;
8413 let mut selections = self.selections.all::<usize>(cx);
8414 if let Some(mut select_next_state) = self.select_next_state.take() {
8415 let query = &select_next_state.query;
8416 if !select_next_state.done {
8417 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8418 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8419 let mut next_selected_range = None;
8420
8421 let bytes_after_last_selection =
8422 buffer.bytes_in_range(last_selection.end..buffer.len());
8423 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8424 let query_matches = query
8425 .stream_find_iter(bytes_after_last_selection)
8426 .map(|result| (last_selection.end, result))
8427 .chain(
8428 query
8429 .stream_find_iter(bytes_before_first_selection)
8430 .map(|result| (0, result)),
8431 );
8432
8433 for (start_offset, query_match) in query_matches {
8434 let query_match = query_match.unwrap(); // can only fail due to I/O
8435 let offset_range =
8436 start_offset + query_match.start()..start_offset + query_match.end();
8437 let display_range = offset_range.start.to_display_point(display_map)
8438 ..offset_range.end.to_display_point(display_map);
8439
8440 if !select_next_state.wordwise
8441 || (!movement::is_inside_word(display_map, display_range.start)
8442 && !movement::is_inside_word(display_map, display_range.end))
8443 {
8444 // TODO: This is n^2, because we might check all the selections
8445 if !selections
8446 .iter()
8447 .any(|selection| selection.range().overlaps(&offset_range))
8448 {
8449 next_selected_range = Some(offset_range);
8450 break;
8451 }
8452 }
8453 }
8454
8455 if let Some(next_selected_range) = next_selected_range {
8456 select_next_match_ranges(
8457 self,
8458 next_selected_range,
8459 replace_newest,
8460 autoscroll,
8461 cx,
8462 );
8463 } else {
8464 select_next_state.done = true;
8465 }
8466 }
8467
8468 self.select_next_state = Some(select_next_state);
8469 } else {
8470 let mut only_carets = true;
8471 let mut same_text_selected = true;
8472 let mut selected_text = None;
8473
8474 let mut selections_iter = selections.iter().peekable();
8475 while let Some(selection) = selections_iter.next() {
8476 if selection.start != selection.end {
8477 only_carets = false;
8478 }
8479
8480 if same_text_selected {
8481 if selected_text.is_none() {
8482 selected_text =
8483 Some(buffer.text_for_range(selection.range()).collect::<String>());
8484 }
8485
8486 if let Some(next_selection) = selections_iter.peek() {
8487 if next_selection.range().len() == selection.range().len() {
8488 let next_selected_text = buffer
8489 .text_for_range(next_selection.range())
8490 .collect::<String>();
8491 if Some(next_selected_text) != selected_text {
8492 same_text_selected = false;
8493 selected_text = None;
8494 }
8495 } else {
8496 same_text_selected = false;
8497 selected_text = None;
8498 }
8499 }
8500 }
8501 }
8502
8503 if only_carets {
8504 for selection in &mut selections {
8505 let word_range = movement::surrounding_word(
8506 display_map,
8507 selection.start.to_display_point(display_map),
8508 );
8509 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8510 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8511 selection.goal = SelectionGoal::None;
8512 selection.reversed = false;
8513 select_next_match_ranges(
8514 self,
8515 selection.start..selection.end,
8516 replace_newest,
8517 autoscroll,
8518 cx,
8519 );
8520 }
8521
8522 if selections.len() == 1 {
8523 let selection = selections
8524 .last()
8525 .expect("ensured that there's only one selection");
8526 let query = buffer
8527 .text_for_range(selection.start..selection.end)
8528 .collect::<String>();
8529 let is_empty = query.is_empty();
8530 let select_state = SelectNextState {
8531 query: AhoCorasick::new(&[query])?,
8532 wordwise: true,
8533 done: is_empty,
8534 };
8535 self.select_next_state = Some(select_state);
8536 } else {
8537 self.select_next_state = None;
8538 }
8539 } else if let Some(selected_text) = selected_text {
8540 self.select_next_state = Some(SelectNextState {
8541 query: AhoCorasick::new(&[selected_text])?,
8542 wordwise: false,
8543 done: false,
8544 });
8545 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8546 }
8547 }
8548 Ok(())
8549 }
8550
8551 pub fn select_all_matches(
8552 &mut self,
8553 _action: &SelectAllMatches,
8554 cx: &mut ViewContext<Self>,
8555 ) -> Result<()> {
8556 self.push_to_selection_history();
8557 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8558
8559 self.select_next_match_internal(&display_map, false, None, cx)?;
8560 let Some(select_next_state) = self.select_next_state.as_mut() else {
8561 return Ok(());
8562 };
8563 if select_next_state.done {
8564 return Ok(());
8565 }
8566
8567 let mut new_selections = self.selections.all::<usize>(cx);
8568
8569 let buffer = &display_map.buffer_snapshot;
8570 let query_matches = select_next_state
8571 .query
8572 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8573
8574 for query_match in query_matches {
8575 let query_match = query_match.unwrap(); // can only fail due to I/O
8576 let offset_range = query_match.start()..query_match.end();
8577 let display_range = offset_range.start.to_display_point(&display_map)
8578 ..offset_range.end.to_display_point(&display_map);
8579
8580 if !select_next_state.wordwise
8581 || (!movement::is_inside_word(&display_map, display_range.start)
8582 && !movement::is_inside_word(&display_map, display_range.end))
8583 {
8584 self.selections.change_with(cx, |selections| {
8585 new_selections.push(Selection {
8586 id: selections.new_selection_id(),
8587 start: offset_range.start,
8588 end: offset_range.end,
8589 reversed: false,
8590 goal: SelectionGoal::None,
8591 });
8592 });
8593 }
8594 }
8595
8596 new_selections.sort_by_key(|selection| selection.start);
8597 let mut ix = 0;
8598 while ix + 1 < new_selections.len() {
8599 let current_selection = &new_selections[ix];
8600 let next_selection = &new_selections[ix + 1];
8601 if current_selection.range().overlaps(&next_selection.range()) {
8602 if current_selection.id < next_selection.id {
8603 new_selections.remove(ix + 1);
8604 } else {
8605 new_selections.remove(ix);
8606 }
8607 } else {
8608 ix += 1;
8609 }
8610 }
8611
8612 select_next_state.done = true;
8613 self.unfold_ranges(
8614 &new_selections
8615 .iter()
8616 .map(|selection| selection.range())
8617 .collect::<Vec<_>>(),
8618 false,
8619 false,
8620 cx,
8621 );
8622 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8623 selections.select(new_selections)
8624 });
8625
8626 Ok(())
8627 }
8628
8629 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8630 self.push_to_selection_history();
8631 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8632 self.select_next_match_internal(
8633 &display_map,
8634 action.replace_newest,
8635 Some(Autoscroll::newest()),
8636 cx,
8637 )?;
8638 Ok(())
8639 }
8640
8641 pub fn select_previous(
8642 &mut self,
8643 action: &SelectPrevious,
8644 cx: &mut ViewContext<Self>,
8645 ) -> Result<()> {
8646 self.push_to_selection_history();
8647 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8648 let buffer = &display_map.buffer_snapshot;
8649 let mut selections = self.selections.all::<usize>(cx);
8650 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8651 let query = &select_prev_state.query;
8652 if !select_prev_state.done {
8653 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8654 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8655 let mut next_selected_range = None;
8656 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8657 let bytes_before_last_selection =
8658 buffer.reversed_bytes_in_range(0..last_selection.start);
8659 let bytes_after_first_selection =
8660 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8661 let query_matches = query
8662 .stream_find_iter(bytes_before_last_selection)
8663 .map(|result| (last_selection.start, result))
8664 .chain(
8665 query
8666 .stream_find_iter(bytes_after_first_selection)
8667 .map(|result| (buffer.len(), result)),
8668 );
8669 for (end_offset, query_match) in query_matches {
8670 let query_match = query_match.unwrap(); // can only fail due to I/O
8671 let offset_range =
8672 end_offset - query_match.end()..end_offset - query_match.start();
8673 let display_range = offset_range.start.to_display_point(&display_map)
8674 ..offset_range.end.to_display_point(&display_map);
8675
8676 if !select_prev_state.wordwise
8677 || (!movement::is_inside_word(&display_map, display_range.start)
8678 && !movement::is_inside_word(&display_map, display_range.end))
8679 {
8680 next_selected_range = Some(offset_range);
8681 break;
8682 }
8683 }
8684
8685 if let Some(next_selected_range) = next_selected_range {
8686 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8687 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8688 if action.replace_newest {
8689 s.delete(s.newest_anchor().id);
8690 }
8691 s.insert_range(next_selected_range);
8692 });
8693 } else {
8694 select_prev_state.done = true;
8695 }
8696 }
8697
8698 self.select_prev_state = Some(select_prev_state);
8699 } else {
8700 let mut only_carets = true;
8701 let mut same_text_selected = true;
8702 let mut selected_text = None;
8703
8704 let mut selections_iter = selections.iter().peekable();
8705 while let Some(selection) = selections_iter.next() {
8706 if selection.start != selection.end {
8707 only_carets = false;
8708 }
8709
8710 if same_text_selected {
8711 if selected_text.is_none() {
8712 selected_text =
8713 Some(buffer.text_for_range(selection.range()).collect::<String>());
8714 }
8715
8716 if let Some(next_selection) = selections_iter.peek() {
8717 if next_selection.range().len() == selection.range().len() {
8718 let next_selected_text = buffer
8719 .text_for_range(next_selection.range())
8720 .collect::<String>();
8721 if Some(next_selected_text) != selected_text {
8722 same_text_selected = false;
8723 selected_text = None;
8724 }
8725 } else {
8726 same_text_selected = false;
8727 selected_text = None;
8728 }
8729 }
8730 }
8731 }
8732
8733 if only_carets {
8734 for selection in &mut selections {
8735 let word_range = movement::surrounding_word(
8736 &display_map,
8737 selection.start.to_display_point(&display_map),
8738 );
8739 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8740 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8741 selection.goal = SelectionGoal::None;
8742 selection.reversed = false;
8743 }
8744 if selections.len() == 1 {
8745 let selection = selections
8746 .last()
8747 .expect("ensured that there's only one selection");
8748 let query = buffer
8749 .text_for_range(selection.start..selection.end)
8750 .collect::<String>();
8751 let is_empty = query.is_empty();
8752 let select_state = SelectNextState {
8753 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8754 wordwise: true,
8755 done: is_empty,
8756 };
8757 self.select_prev_state = Some(select_state);
8758 } else {
8759 self.select_prev_state = None;
8760 }
8761
8762 self.unfold_ranges(
8763 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8764 false,
8765 true,
8766 cx,
8767 );
8768 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8769 s.select(selections);
8770 });
8771 } else if let Some(selected_text) = selected_text {
8772 self.select_prev_state = Some(SelectNextState {
8773 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8774 wordwise: false,
8775 done: false,
8776 });
8777 self.select_previous(action, cx)?;
8778 }
8779 }
8780 Ok(())
8781 }
8782
8783 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8784 let text_layout_details = &self.text_layout_details(cx);
8785 self.transact(cx, |this, cx| {
8786 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8787 let mut edits = Vec::new();
8788 let mut selection_edit_ranges = Vec::new();
8789 let mut last_toggled_row = None;
8790 let snapshot = this.buffer.read(cx).read(cx);
8791 let empty_str: Arc<str> = Arc::default();
8792 let mut suffixes_inserted = Vec::new();
8793 let ignore_indent = action.ignore_indent;
8794
8795 fn comment_prefix_range(
8796 snapshot: &MultiBufferSnapshot,
8797 row: MultiBufferRow,
8798 comment_prefix: &str,
8799 comment_prefix_whitespace: &str,
8800 ignore_indent: bool,
8801 ) -> Range<Point> {
8802 let indent_size = if ignore_indent {
8803 0
8804 } else {
8805 snapshot.indent_size_for_line(row).len
8806 };
8807
8808 let start = Point::new(row.0, indent_size);
8809
8810 let mut line_bytes = snapshot
8811 .bytes_in_range(start..snapshot.max_point())
8812 .flatten()
8813 .copied();
8814
8815 // If this line currently begins with the line comment prefix, then record
8816 // the range containing the prefix.
8817 if line_bytes
8818 .by_ref()
8819 .take(comment_prefix.len())
8820 .eq(comment_prefix.bytes())
8821 {
8822 // Include any whitespace that matches the comment prefix.
8823 let matching_whitespace_len = line_bytes
8824 .zip(comment_prefix_whitespace.bytes())
8825 .take_while(|(a, b)| a == b)
8826 .count() as u32;
8827 let end = Point::new(
8828 start.row,
8829 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8830 );
8831 start..end
8832 } else {
8833 start..start
8834 }
8835 }
8836
8837 fn comment_suffix_range(
8838 snapshot: &MultiBufferSnapshot,
8839 row: MultiBufferRow,
8840 comment_suffix: &str,
8841 comment_suffix_has_leading_space: bool,
8842 ) -> Range<Point> {
8843 let end = Point::new(row.0, snapshot.line_len(row));
8844 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8845
8846 let mut line_end_bytes = snapshot
8847 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8848 .flatten()
8849 .copied();
8850
8851 let leading_space_len = if suffix_start_column > 0
8852 && line_end_bytes.next() == Some(b' ')
8853 && comment_suffix_has_leading_space
8854 {
8855 1
8856 } else {
8857 0
8858 };
8859
8860 // If this line currently begins with the line comment prefix, then record
8861 // the range containing the prefix.
8862 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8863 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8864 start..end
8865 } else {
8866 end..end
8867 }
8868 }
8869
8870 // TODO: Handle selections that cross excerpts
8871 for selection in &mut selections {
8872 let start_column = snapshot
8873 .indent_size_for_line(MultiBufferRow(selection.start.row))
8874 .len;
8875 let language = if let Some(language) =
8876 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8877 {
8878 language
8879 } else {
8880 continue;
8881 };
8882
8883 selection_edit_ranges.clear();
8884
8885 // If multiple selections contain a given row, avoid processing that
8886 // row more than once.
8887 let mut start_row = MultiBufferRow(selection.start.row);
8888 if last_toggled_row == Some(start_row) {
8889 start_row = start_row.next_row();
8890 }
8891 let end_row =
8892 if selection.end.row > selection.start.row && selection.end.column == 0 {
8893 MultiBufferRow(selection.end.row - 1)
8894 } else {
8895 MultiBufferRow(selection.end.row)
8896 };
8897 last_toggled_row = Some(end_row);
8898
8899 if start_row > end_row {
8900 continue;
8901 }
8902
8903 // If the language has line comments, toggle those.
8904 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8905
8906 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8907 if ignore_indent {
8908 full_comment_prefixes = full_comment_prefixes
8909 .into_iter()
8910 .map(|s| Arc::from(s.trim_end()))
8911 .collect();
8912 }
8913
8914 if !full_comment_prefixes.is_empty() {
8915 let first_prefix = full_comment_prefixes
8916 .first()
8917 .expect("prefixes is non-empty");
8918 let prefix_trimmed_lengths = full_comment_prefixes
8919 .iter()
8920 .map(|p| p.trim_end_matches(' ').len())
8921 .collect::<SmallVec<[usize; 4]>>();
8922
8923 let mut all_selection_lines_are_comments = true;
8924
8925 for row in start_row.0..=end_row.0 {
8926 let row = MultiBufferRow(row);
8927 if start_row < end_row && snapshot.is_line_blank(row) {
8928 continue;
8929 }
8930
8931 let prefix_range = full_comment_prefixes
8932 .iter()
8933 .zip(prefix_trimmed_lengths.iter().copied())
8934 .map(|(prefix, trimmed_prefix_len)| {
8935 comment_prefix_range(
8936 snapshot.deref(),
8937 row,
8938 &prefix[..trimmed_prefix_len],
8939 &prefix[trimmed_prefix_len..],
8940 ignore_indent,
8941 )
8942 })
8943 .max_by_key(|range| range.end.column - range.start.column)
8944 .expect("prefixes is non-empty");
8945
8946 if prefix_range.is_empty() {
8947 all_selection_lines_are_comments = false;
8948 }
8949
8950 selection_edit_ranges.push(prefix_range);
8951 }
8952
8953 if all_selection_lines_are_comments {
8954 edits.extend(
8955 selection_edit_ranges
8956 .iter()
8957 .cloned()
8958 .map(|range| (range, empty_str.clone())),
8959 );
8960 } else {
8961 let min_column = selection_edit_ranges
8962 .iter()
8963 .map(|range| range.start.column)
8964 .min()
8965 .unwrap_or(0);
8966 edits.extend(selection_edit_ranges.iter().map(|range| {
8967 let position = Point::new(range.start.row, min_column);
8968 (position..position, first_prefix.clone())
8969 }));
8970 }
8971 } else if let Some((full_comment_prefix, comment_suffix)) =
8972 language.block_comment_delimiters()
8973 {
8974 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8975 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8976 let prefix_range = comment_prefix_range(
8977 snapshot.deref(),
8978 start_row,
8979 comment_prefix,
8980 comment_prefix_whitespace,
8981 ignore_indent,
8982 );
8983 let suffix_range = comment_suffix_range(
8984 snapshot.deref(),
8985 end_row,
8986 comment_suffix.trim_start_matches(' '),
8987 comment_suffix.starts_with(' '),
8988 );
8989
8990 if prefix_range.is_empty() || suffix_range.is_empty() {
8991 edits.push((
8992 prefix_range.start..prefix_range.start,
8993 full_comment_prefix.clone(),
8994 ));
8995 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8996 suffixes_inserted.push((end_row, comment_suffix.len()));
8997 } else {
8998 edits.push((prefix_range, empty_str.clone()));
8999 edits.push((suffix_range, empty_str.clone()));
9000 }
9001 } else {
9002 continue;
9003 }
9004 }
9005
9006 drop(snapshot);
9007 this.buffer.update(cx, |buffer, cx| {
9008 buffer.edit(edits, None, cx);
9009 });
9010
9011 // Adjust selections so that they end before any comment suffixes that
9012 // were inserted.
9013 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
9014 let mut selections = this.selections.all::<Point>(cx);
9015 let snapshot = this.buffer.read(cx).read(cx);
9016 for selection in &mut selections {
9017 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
9018 match row.cmp(&MultiBufferRow(selection.end.row)) {
9019 Ordering::Less => {
9020 suffixes_inserted.next();
9021 continue;
9022 }
9023 Ordering::Greater => break,
9024 Ordering::Equal => {
9025 if selection.end.column == snapshot.line_len(row) {
9026 if selection.is_empty() {
9027 selection.start.column -= suffix_len as u32;
9028 }
9029 selection.end.column -= suffix_len as u32;
9030 }
9031 break;
9032 }
9033 }
9034 }
9035 }
9036
9037 drop(snapshot);
9038 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
9039
9040 let selections = this.selections.all::<Point>(cx);
9041 let selections_on_single_row = selections.windows(2).all(|selections| {
9042 selections[0].start.row == selections[1].start.row
9043 && selections[0].end.row == selections[1].end.row
9044 && selections[0].start.row == selections[0].end.row
9045 });
9046 let selections_selecting = selections
9047 .iter()
9048 .any(|selection| selection.start != selection.end);
9049 let advance_downwards = action.advance_downwards
9050 && selections_on_single_row
9051 && !selections_selecting
9052 && !matches!(this.mode, EditorMode::SingleLine { .. });
9053
9054 if advance_downwards {
9055 let snapshot = this.buffer.read(cx).snapshot(cx);
9056
9057 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
9058 s.move_cursors_with(|display_snapshot, display_point, _| {
9059 let mut point = display_point.to_point(display_snapshot);
9060 point.row += 1;
9061 point = snapshot.clip_point(point, Bias::Left);
9062 let display_point = point.to_display_point(display_snapshot);
9063 let goal = SelectionGoal::HorizontalPosition(
9064 display_snapshot
9065 .x_for_display_point(display_point, text_layout_details)
9066 .into(),
9067 );
9068 (display_point, goal)
9069 })
9070 });
9071 }
9072 });
9073 }
9074
9075 pub fn select_enclosing_symbol(
9076 &mut self,
9077 _: &SelectEnclosingSymbol,
9078 cx: &mut ViewContext<Self>,
9079 ) {
9080 let buffer = self.buffer.read(cx).snapshot(cx);
9081 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9082
9083 fn update_selection(
9084 selection: &Selection<usize>,
9085 buffer_snap: &MultiBufferSnapshot,
9086 ) -> Option<Selection<usize>> {
9087 let cursor = selection.head();
9088 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
9089 for symbol in symbols.iter().rev() {
9090 let start = symbol.range.start.to_offset(buffer_snap);
9091 let end = symbol.range.end.to_offset(buffer_snap);
9092 let new_range = start..end;
9093 if start < selection.start || end > selection.end {
9094 return Some(Selection {
9095 id: selection.id,
9096 start: new_range.start,
9097 end: new_range.end,
9098 goal: SelectionGoal::None,
9099 reversed: selection.reversed,
9100 });
9101 }
9102 }
9103 None
9104 }
9105
9106 let mut selected_larger_symbol = false;
9107 let new_selections = old_selections
9108 .iter()
9109 .map(|selection| match update_selection(selection, &buffer) {
9110 Some(new_selection) => {
9111 if new_selection.range() != selection.range() {
9112 selected_larger_symbol = true;
9113 }
9114 new_selection
9115 }
9116 None => selection.clone(),
9117 })
9118 .collect::<Vec<_>>();
9119
9120 if selected_larger_symbol {
9121 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9122 s.select(new_selections);
9123 });
9124 }
9125 }
9126
9127 pub fn select_larger_syntax_node(
9128 &mut self,
9129 _: &SelectLargerSyntaxNode,
9130 cx: &mut ViewContext<Self>,
9131 ) {
9132 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9133 let buffer = self.buffer.read(cx).snapshot(cx);
9134 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9135
9136 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9137 let mut selected_larger_node = false;
9138 let new_selections = old_selections
9139 .iter()
9140 .map(|selection| {
9141 let old_range = selection.start..selection.end;
9142 let mut new_range = old_range.clone();
9143 while let Some(containing_range) =
9144 buffer.range_for_syntax_ancestor(new_range.clone())
9145 {
9146 new_range = containing_range;
9147 if !display_map.intersects_fold(new_range.start)
9148 && !display_map.intersects_fold(new_range.end)
9149 {
9150 break;
9151 }
9152 }
9153
9154 selected_larger_node |= new_range != old_range;
9155 Selection {
9156 id: selection.id,
9157 start: new_range.start,
9158 end: new_range.end,
9159 goal: SelectionGoal::None,
9160 reversed: selection.reversed,
9161 }
9162 })
9163 .collect::<Vec<_>>();
9164
9165 if selected_larger_node {
9166 stack.push(old_selections);
9167 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9168 s.select(new_selections);
9169 });
9170 }
9171 self.select_larger_syntax_node_stack = stack;
9172 }
9173
9174 pub fn select_smaller_syntax_node(
9175 &mut self,
9176 _: &SelectSmallerSyntaxNode,
9177 cx: &mut ViewContext<Self>,
9178 ) {
9179 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9180 if let Some(selections) = stack.pop() {
9181 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9182 s.select(selections.to_vec());
9183 });
9184 }
9185 self.select_larger_syntax_node_stack = stack;
9186 }
9187
9188 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9189 if !EditorSettings::get_global(cx).gutter.runnables {
9190 self.clear_tasks();
9191 return Task::ready(());
9192 }
9193 let project = self.project.clone();
9194 cx.spawn(|this, mut cx| async move {
9195 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9196 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9197 }) else {
9198 return;
9199 };
9200
9201 let Some(project) = project else {
9202 return;
9203 };
9204
9205 let hide_runnables = project
9206 .update(&mut cx, |project, cx| {
9207 // Do not display any test indicators in non-dev server remote projects.
9208 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9209 })
9210 .unwrap_or(true);
9211 if hide_runnables {
9212 return;
9213 }
9214 let new_rows =
9215 cx.background_executor()
9216 .spawn({
9217 let snapshot = display_snapshot.clone();
9218 async move {
9219 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9220 }
9221 })
9222 .await;
9223 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9224
9225 this.update(&mut cx, |this, _| {
9226 this.clear_tasks();
9227 for (key, value) in rows {
9228 this.insert_tasks(key, value);
9229 }
9230 })
9231 .ok();
9232 })
9233 }
9234 fn fetch_runnable_ranges(
9235 snapshot: &DisplaySnapshot,
9236 range: Range<Anchor>,
9237 ) -> Vec<language::RunnableRange> {
9238 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9239 }
9240
9241 fn runnable_rows(
9242 project: Model<Project>,
9243 snapshot: DisplaySnapshot,
9244 runnable_ranges: Vec<RunnableRange>,
9245 mut cx: AsyncWindowContext,
9246 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9247 runnable_ranges
9248 .into_iter()
9249 .filter_map(|mut runnable| {
9250 let tasks = cx
9251 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9252 .ok()?;
9253 if tasks.is_empty() {
9254 return None;
9255 }
9256
9257 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9258
9259 let row = snapshot
9260 .buffer_snapshot
9261 .buffer_line_for_row(MultiBufferRow(point.row))?
9262 .1
9263 .start
9264 .row;
9265
9266 let context_range =
9267 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9268 Some((
9269 (runnable.buffer_id, row),
9270 RunnableTasks {
9271 templates: tasks,
9272 offset: MultiBufferOffset(runnable.run_range.start),
9273 context_range,
9274 column: point.column,
9275 extra_variables: runnable.extra_captures,
9276 },
9277 ))
9278 })
9279 .collect()
9280 }
9281
9282 fn templates_with_tags(
9283 project: &Model<Project>,
9284 runnable: &mut Runnable,
9285 cx: &WindowContext<'_>,
9286 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9287 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9288 let (worktree_id, file) = project
9289 .buffer_for_id(runnable.buffer, cx)
9290 .and_then(|buffer| buffer.read(cx).file())
9291 .map(|file| (file.worktree_id(cx), file.clone()))
9292 .unzip();
9293
9294 (
9295 project.task_store().read(cx).task_inventory().cloned(),
9296 worktree_id,
9297 file,
9298 )
9299 });
9300
9301 let tags = mem::take(&mut runnable.tags);
9302 let mut tags: Vec<_> = tags
9303 .into_iter()
9304 .flat_map(|tag| {
9305 let tag = tag.0.clone();
9306 inventory
9307 .as_ref()
9308 .into_iter()
9309 .flat_map(|inventory| {
9310 inventory.read(cx).list_tasks(
9311 file.clone(),
9312 Some(runnable.language.clone()),
9313 worktree_id,
9314 cx,
9315 )
9316 })
9317 .filter(move |(_, template)| {
9318 template.tags.iter().any(|source_tag| source_tag == &tag)
9319 })
9320 })
9321 .sorted_by_key(|(kind, _)| kind.to_owned())
9322 .collect();
9323 if let Some((leading_tag_source, _)) = tags.first() {
9324 // Strongest source wins; if we have worktree tag binding, prefer that to
9325 // global and language bindings;
9326 // if we have a global binding, prefer that to language binding.
9327 let first_mismatch = tags
9328 .iter()
9329 .position(|(tag_source, _)| tag_source != leading_tag_source);
9330 if let Some(index) = first_mismatch {
9331 tags.truncate(index);
9332 }
9333 }
9334
9335 tags
9336 }
9337
9338 pub fn move_to_enclosing_bracket(
9339 &mut self,
9340 _: &MoveToEnclosingBracket,
9341 cx: &mut ViewContext<Self>,
9342 ) {
9343 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9344 s.move_offsets_with(|snapshot, selection| {
9345 let Some(enclosing_bracket_ranges) =
9346 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9347 else {
9348 return;
9349 };
9350
9351 let mut best_length = usize::MAX;
9352 let mut best_inside = false;
9353 let mut best_in_bracket_range = false;
9354 let mut best_destination = None;
9355 for (open, close) in enclosing_bracket_ranges {
9356 let close = close.to_inclusive();
9357 let length = close.end() - open.start;
9358 let inside = selection.start >= open.end && selection.end <= *close.start();
9359 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9360 || close.contains(&selection.head());
9361
9362 // If best is next to a bracket and current isn't, skip
9363 if !in_bracket_range && best_in_bracket_range {
9364 continue;
9365 }
9366
9367 // Prefer smaller lengths unless best is inside and current isn't
9368 if length > best_length && (best_inside || !inside) {
9369 continue;
9370 }
9371
9372 best_length = length;
9373 best_inside = inside;
9374 best_in_bracket_range = in_bracket_range;
9375 best_destination = Some(
9376 if close.contains(&selection.start) && close.contains(&selection.end) {
9377 if inside {
9378 open.end
9379 } else {
9380 open.start
9381 }
9382 } else if inside {
9383 *close.start()
9384 } else {
9385 *close.end()
9386 },
9387 );
9388 }
9389
9390 if let Some(destination) = best_destination {
9391 selection.collapse_to(destination, SelectionGoal::None);
9392 }
9393 })
9394 });
9395 }
9396
9397 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9398 self.end_selection(cx);
9399 self.selection_history.mode = SelectionHistoryMode::Undoing;
9400 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9401 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9402 self.select_next_state = entry.select_next_state;
9403 self.select_prev_state = entry.select_prev_state;
9404 self.add_selections_state = entry.add_selections_state;
9405 self.request_autoscroll(Autoscroll::newest(), cx);
9406 }
9407 self.selection_history.mode = SelectionHistoryMode::Normal;
9408 }
9409
9410 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9411 self.end_selection(cx);
9412 self.selection_history.mode = SelectionHistoryMode::Redoing;
9413 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9414 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9415 self.select_next_state = entry.select_next_state;
9416 self.select_prev_state = entry.select_prev_state;
9417 self.add_selections_state = entry.add_selections_state;
9418 self.request_autoscroll(Autoscroll::newest(), cx);
9419 }
9420 self.selection_history.mode = SelectionHistoryMode::Normal;
9421 }
9422
9423 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9424 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9425 }
9426
9427 pub fn expand_excerpts_down(
9428 &mut self,
9429 action: &ExpandExcerptsDown,
9430 cx: &mut ViewContext<Self>,
9431 ) {
9432 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9433 }
9434
9435 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9436 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9437 }
9438
9439 pub fn expand_excerpts_for_direction(
9440 &mut self,
9441 lines: u32,
9442 direction: ExpandExcerptDirection,
9443 cx: &mut ViewContext<Self>,
9444 ) {
9445 let selections = self.selections.disjoint_anchors();
9446
9447 let lines = if lines == 0 {
9448 EditorSettings::get_global(cx).expand_excerpt_lines
9449 } else {
9450 lines
9451 };
9452
9453 self.buffer.update(cx, |buffer, cx| {
9454 buffer.expand_excerpts(
9455 selections
9456 .iter()
9457 .map(|selection| selection.head().excerpt_id)
9458 .dedup(),
9459 lines,
9460 direction,
9461 cx,
9462 )
9463 })
9464 }
9465
9466 pub fn expand_excerpt(
9467 &mut self,
9468 excerpt: ExcerptId,
9469 direction: ExpandExcerptDirection,
9470 cx: &mut ViewContext<Self>,
9471 ) {
9472 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9473 self.buffer.update(cx, |buffer, cx| {
9474 buffer.expand_excerpts([excerpt], lines, direction, cx)
9475 })
9476 }
9477
9478 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9479 self.go_to_diagnostic_impl(Direction::Next, cx)
9480 }
9481
9482 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9483 self.go_to_diagnostic_impl(Direction::Prev, cx)
9484 }
9485
9486 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9487 let buffer = self.buffer.read(cx).snapshot(cx);
9488 let selection = self.selections.newest::<usize>(cx);
9489
9490 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9491 if direction == Direction::Next {
9492 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9493 let (group_id, jump_to) = popover.activation_info();
9494 if self.activate_diagnostics(group_id, cx) {
9495 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9496 let mut new_selection = s.newest_anchor().clone();
9497 new_selection.collapse_to(jump_to, SelectionGoal::None);
9498 s.select_anchors(vec![new_selection.clone()]);
9499 });
9500 }
9501 return;
9502 }
9503 }
9504
9505 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9506 active_diagnostics
9507 .primary_range
9508 .to_offset(&buffer)
9509 .to_inclusive()
9510 });
9511 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9512 if active_primary_range.contains(&selection.head()) {
9513 *active_primary_range.start()
9514 } else {
9515 selection.head()
9516 }
9517 } else {
9518 selection.head()
9519 };
9520 let snapshot = self.snapshot(cx);
9521 loop {
9522 let diagnostics = if direction == Direction::Prev {
9523 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9524 } else {
9525 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9526 }
9527 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9528 let group = diagnostics
9529 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9530 // be sorted in a stable way
9531 // skip until we are at current active diagnostic, if it exists
9532 .skip_while(|entry| {
9533 (match direction {
9534 Direction::Prev => entry.range.start >= search_start,
9535 Direction::Next => entry.range.start <= search_start,
9536 }) && self
9537 .active_diagnostics
9538 .as_ref()
9539 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9540 })
9541 .find_map(|entry| {
9542 if entry.diagnostic.is_primary
9543 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9544 && !entry.range.is_empty()
9545 // if we match with the active diagnostic, skip it
9546 && Some(entry.diagnostic.group_id)
9547 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9548 {
9549 Some((entry.range, entry.diagnostic.group_id))
9550 } else {
9551 None
9552 }
9553 });
9554
9555 if let Some((primary_range, group_id)) = group {
9556 if self.activate_diagnostics(group_id, cx) {
9557 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9558 s.select(vec![Selection {
9559 id: selection.id,
9560 start: primary_range.start,
9561 end: primary_range.start,
9562 reversed: false,
9563 goal: SelectionGoal::None,
9564 }]);
9565 });
9566 }
9567 break;
9568 } else {
9569 // Cycle around to the start of the buffer, potentially moving back to the start of
9570 // the currently active diagnostic.
9571 active_primary_range.take();
9572 if direction == Direction::Prev {
9573 if search_start == buffer.len() {
9574 break;
9575 } else {
9576 search_start = buffer.len();
9577 }
9578 } else if search_start == 0 {
9579 break;
9580 } else {
9581 search_start = 0;
9582 }
9583 }
9584 }
9585 }
9586
9587 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9588 let snapshot = self
9589 .display_map
9590 .update(cx, |display_map, cx| display_map.snapshot(cx));
9591 let selection = self.selections.newest::<Point>(cx);
9592 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9593 }
9594
9595 fn go_to_hunk_after_position(
9596 &mut self,
9597 snapshot: &DisplaySnapshot,
9598 position: Point,
9599 cx: &mut ViewContext<'_, Editor>,
9600 ) -> Option<MultiBufferDiffHunk> {
9601 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9602 snapshot,
9603 position,
9604 false,
9605 snapshot
9606 .buffer_snapshot
9607 .git_diff_hunks_in_range(MultiBufferRow(position.row + 1)..MultiBufferRow::MAX),
9608 cx,
9609 ) {
9610 return Some(hunk);
9611 }
9612
9613 let wrapped_point = Point::zero();
9614 self.go_to_next_hunk_in_direction(
9615 snapshot,
9616 wrapped_point,
9617 true,
9618 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9619 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9620 ),
9621 cx,
9622 )
9623 }
9624
9625 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9626 let snapshot = self
9627 .display_map
9628 .update(cx, |display_map, cx| display_map.snapshot(cx));
9629 let selection = self.selections.newest::<Point>(cx);
9630
9631 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9632 }
9633
9634 fn go_to_hunk_before_position(
9635 &mut self,
9636 snapshot: &DisplaySnapshot,
9637 position: Point,
9638 cx: &mut ViewContext<'_, Editor>,
9639 ) -> Option<MultiBufferDiffHunk> {
9640 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9641 snapshot,
9642 position,
9643 false,
9644 snapshot
9645 .buffer_snapshot
9646 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(position.row)),
9647 cx,
9648 ) {
9649 return Some(hunk);
9650 }
9651
9652 let wrapped_point = snapshot.buffer_snapshot.max_point();
9653 self.go_to_next_hunk_in_direction(
9654 snapshot,
9655 wrapped_point,
9656 true,
9657 snapshot
9658 .buffer_snapshot
9659 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(wrapped_point.row)),
9660 cx,
9661 )
9662 }
9663
9664 fn go_to_next_hunk_in_direction(
9665 &mut self,
9666 snapshot: &DisplaySnapshot,
9667 initial_point: Point,
9668 is_wrapped: bool,
9669 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9670 cx: &mut ViewContext<Editor>,
9671 ) -> Option<MultiBufferDiffHunk> {
9672 let display_point = initial_point.to_display_point(snapshot);
9673 let mut hunks = hunks
9674 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9675 .filter(|(display_hunk, _)| {
9676 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9677 })
9678 .dedup();
9679
9680 if let Some((display_hunk, hunk)) = hunks.next() {
9681 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9682 let row = display_hunk.start_display_row();
9683 let point = DisplayPoint::new(row, 0);
9684 s.select_display_ranges([point..point]);
9685 });
9686
9687 Some(hunk)
9688 } else {
9689 None
9690 }
9691 }
9692
9693 pub fn go_to_definition(
9694 &mut self,
9695 _: &GoToDefinition,
9696 cx: &mut ViewContext<Self>,
9697 ) -> Task<Result<Navigated>> {
9698 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9699 cx.spawn(|editor, mut cx| async move {
9700 if definition.await? == Navigated::Yes {
9701 return Ok(Navigated::Yes);
9702 }
9703 match editor.update(&mut cx, |editor, cx| {
9704 editor.find_all_references(&FindAllReferences, cx)
9705 })? {
9706 Some(references) => references.await,
9707 None => Ok(Navigated::No),
9708 }
9709 })
9710 }
9711
9712 pub fn go_to_declaration(
9713 &mut self,
9714 _: &GoToDeclaration,
9715 cx: &mut ViewContext<Self>,
9716 ) -> Task<Result<Navigated>> {
9717 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9718 }
9719
9720 pub fn go_to_declaration_split(
9721 &mut self,
9722 _: &GoToDeclaration,
9723 cx: &mut ViewContext<Self>,
9724 ) -> Task<Result<Navigated>> {
9725 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9726 }
9727
9728 pub fn go_to_implementation(
9729 &mut self,
9730 _: &GoToImplementation,
9731 cx: &mut ViewContext<Self>,
9732 ) -> Task<Result<Navigated>> {
9733 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9734 }
9735
9736 pub fn go_to_implementation_split(
9737 &mut self,
9738 _: &GoToImplementationSplit,
9739 cx: &mut ViewContext<Self>,
9740 ) -> Task<Result<Navigated>> {
9741 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9742 }
9743
9744 pub fn go_to_type_definition(
9745 &mut self,
9746 _: &GoToTypeDefinition,
9747 cx: &mut ViewContext<Self>,
9748 ) -> Task<Result<Navigated>> {
9749 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9750 }
9751
9752 pub fn go_to_definition_split(
9753 &mut self,
9754 _: &GoToDefinitionSplit,
9755 cx: &mut ViewContext<Self>,
9756 ) -> Task<Result<Navigated>> {
9757 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9758 }
9759
9760 pub fn go_to_type_definition_split(
9761 &mut self,
9762 _: &GoToTypeDefinitionSplit,
9763 cx: &mut ViewContext<Self>,
9764 ) -> Task<Result<Navigated>> {
9765 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9766 }
9767
9768 fn go_to_definition_of_kind(
9769 &mut self,
9770 kind: GotoDefinitionKind,
9771 split: bool,
9772 cx: &mut ViewContext<Self>,
9773 ) -> Task<Result<Navigated>> {
9774 let Some(provider) = self.semantics_provider.clone() else {
9775 return Task::ready(Ok(Navigated::No));
9776 };
9777 let head = self.selections.newest::<usize>(cx).head();
9778 let buffer = self.buffer.read(cx);
9779 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9780 text_anchor
9781 } else {
9782 return Task::ready(Ok(Navigated::No));
9783 };
9784
9785 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9786 return Task::ready(Ok(Navigated::No));
9787 };
9788
9789 cx.spawn(|editor, mut cx| async move {
9790 let definitions = definitions.await?;
9791 let navigated = editor
9792 .update(&mut cx, |editor, cx| {
9793 editor.navigate_to_hover_links(
9794 Some(kind),
9795 definitions
9796 .into_iter()
9797 .filter(|location| {
9798 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9799 })
9800 .map(HoverLink::Text)
9801 .collect::<Vec<_>>(),
9802 split,
9803 cx,
9804 )
9805 })?
9806 .await?;
9807 anyhow::Ok(navigated)
9808 })
9809 }
9810
9811 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9812 let position = self.selections.newest_anchor().head();
9813 let Some((buffer, buffer_position)) =
9814 self.buffer.read(cx).text_anchor_for_position(position, cx)
9815 else {
9816 return;
9817 };
9818
9819 cx.spawn(|editor, mut cx| async move {
9820 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9821 editor.update(&mut cx, |_, cx| {
9822 cx.open_url(&url);
9823 })
9824 } else {
9825 Ok(())
9826 }
9827 })
9828 .detach();
9829 }
9830
9831 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9832 let Some(workspace) = self.workspace() else {
9833 return;
9834 };
9835
9836 let position = self.selections.newest_anchor().head();
9837
9838 let Some((buffer, buffer_position)) =
9839 self.buffer.read(cx).text_anchor_for_position(position, cx)
9840 else {
9841 return;
9842 };
9843
9844 let project = self.project.clone();
9845
9846 cx.spawn(|_, mut cx| async move {
9847 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9848
9849 if let Some((_, path)) = result {
9850 workspace
9851 .update(&mut cx, |workspace, cx| {
9852 workspace.open_resolved_path(path, cx)
9853 })?
9854 .await?;
9855 }
9856 anyhow::Ok(())
9857 })
9858 .detach();
9859 }
9860
9861 pub(crate) fn navigate_to_hover_links(
9862 &mut self,
9863 kind: Option<GotoDefinitionKind>,
9864 mut definitions: Vec<HoverLink>,
9865 split: bool,
9866 cx: &mut ViewContext<Editor>,
9867 ) -> Task<Result<Navigated>> {
9868 // If there is one definition, just open it directly
9869 if definitions.len() == 1 {
9870 let definition = definitions.pop().unwrap();
9871
9872 enum TargetTaskResult {
9873 Location(Option<Location>),
9874 AlreadyNavigated,
9875 }
9876
9877 let target_task = match definition {
9878 HoverLink::Text(link) => {
9879 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9880 }
9881 HoverLink::InlayHint(lsp_location, server_id) => {
9882 let computation = self.compute_target_location(lsp_location, server_id, cx);
9883 cx.background_executor().spawn(async move {
9884 let location = computation.await?;
9885 Ok(TargetTaskResult::Location(location))
9886 })
9887 }
9888 HoverLink::Url(url) => {
9889 cx.open_url(&url);
9890 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9891 }
9892 HoverLink::File(path) => {
9893 if let Some(workspace) = self.workspace() {
9894 cx.spawn(|_, mut cx| async move {
9895 workspace
9896 .update(&mut cx, |workspace, cx| {
9897 workspace.open_resolved_path(path, cx)
9898 })?
9899 .await
9900 .map(|_| TargetTaskResult::AlreadyNavigated)
9901 })
9902 } else {
9903 Task::ready(Ok(TargetTaskResult::Location(None)))
9904 }
9905 }
9906 };
9907 cx.spawn(|editor, mut cx| async move {
9908 let target = match target_task.await.context("target resolution task")? {
9909 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9910 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9911 TargetTaskResult::Location(Some(target)) => target,
9912 };
9913
9914 editor.update(&mut cx, |editor, cx| {
9915 let Some(workspace) = editor.workspace() else {
9916 return Navigated::No;
9917 };
9918 let pane = workspace.read(cx).active_pane().clone();
9919
9920 let range = target.range.to_offset(target.buffer.read(cx));
9921 let range = editor.range_for_match(&range);
9922
9923 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9924 let buffer = target.buffer.read(cx);
9925 let range = check_multiline_range(buffer, range);
9926 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9927 s.select_ranges([range]);
9928 });
9929 } else {
9930 cx.window_context().defer(move |cx| {
9931 let target_editor: View<Self> =
9932 workspace.update(cx, |workspace, cx| {
9933 let pane = if split {
9934 workspace.adjacent_pane(cx)
9935 } else {
9936 workspace.active_pane().clone()
9937 };
9938
9939 workspace.open_project_item(
9940 pane,
9941 target.buffer.clone(),
9942 true,
9943 true,
9944 cx,
9945 )
9946 });
9947 target_editor.update(cx, |target_editor, cx| {
9948 // When selecting a definition in a different buffer, disable the nav history
9949 // to avoid creating a history entry at the previous cursor location.
9950 pane.update(cx, |pane, _| pane.disable_history());
9951 let buffer = target.buffer.read(cx);
9952 let range = check_multiline_range(buffer, range);
9953 target_editor.change_selections(
9954 Some(Autoscroll::focused()),
9955 cx,
9956 |s| {
9957 s.select_ranges([range]);
9958 },
9959 );
9960 pane.update(cx, |pane, _| pane.enable_history());
9961 });
9962 });
9963 }
9964 Navigated::Yes
9965 })
9966 })
9967 } else if !definitions.is_empty() {
9968 cx.spawn(|editor, mut cx| async move {
9969 let (title, location_tasks, workspace) = editor
9970 .update(&mut cx, |editor, cx| {
9971 let tab_kind = match kind {
9972 Some(GotoDefinitionKind::Implementation) => "Implementations",
9973 _ => "Definitions",
9974 };
9975 let title = definitions
9976 .iter()
9977 .find_map(|definition| match definition {
9978 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9979 let buffer = origin.buffer.read(cx);
9980 format!(
9981 "{} for {}",
9982 tab_kind,
9983 buffer
9984 .text_for_range(origin.range.clone())
9985 .collect::<String>()
9986 )
9987 }),
9988 HoverLink::InlayHint(_, _) => None,
9989 HoverLink::Url(_) => None,
9990 HoverLink::File(_) => None,
9991 })
9992 .unwrap_or(tab_kind.to_string());
9993 let location_tasks = definitions
9994 .into_iter()
9995 .map(|definition| match definition {
9996 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9997 HoverLink::InlayHint(lsp_location, server_id) => {
9998 editor.compute_target_location(lsp_location, server_id, cx)
9999 }
10000 HoverLink::Url(_) => Task::ready(Ok(None)),
10001 HoverLink::File(_) => Task::ready(Ok(None)),
10002 })
10003 .collect::<Vec<_>>();
10004 (title, location_tasks, editor.workspace().clone())
10005 })
10006 .context("location tasks preparation")?;
10007
10008 let locations = future::join_all(location_tasks)
10009 .await
10010 .into_iter()
10011 .filter_map(|location| location.transpose())
10012 .collect::<Result<_>>()
10013 .context("location tasks")?;
10014
10015 let Some(workspace) = workspace else {
10016 return Ok(Navigated::No);
10017 };
10018 let opened = workspace
10019 .update(&mut cx, |workspace, cx| {
10020 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
10021 })
10022 .ok();
10023
10024 anyhow::Ok(Navigated::from_bool(opened.is_some()))
10025 })
10026 } else {
10027 Task::ready(Ok(Navigated::No))
10028 }
10029 }
10030
10031 fn compute_target_location(
10032 &self,
10033 lsp_location: lsp::Location,
10034 server_id: LanguageServerId,
10035 cx: &mut ViewContext<Self>,
10036 ) -> Task<anyhow::Result<Option<Location>>> {
10037 let Some(project) = self.project.clone() else {
10038 return Task::Ready(Some(Ok(None)));
10039 };
10040
10041 cx.spawn(move |editor, mut cx| async move {
10042 let location_task = editor.update(&mut cx, |_, cx| {
10043 project.update(cx, |project, cx| {
10044 let language_server_name = project
10045 .language_server_statuses(cx)
10046 .find(|(id, _)| server_id == *id)
10047 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
10048 language_server_name.map(|language_server_name| {
10049 project.open_local_buffer_via_lsp(
10050 lsp_location.uri.clone(),
10051 server_id,
10052 language_server_name,
10053 cx,
10054 )
10055 })
10056 })
10057 })?;
10058 let location = match location_task {
10059 Some(task) => Some({
10060 let target_buffer_handle = task.await.context("open local buffer")?;
10061 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
10062 let target_start = target_buffer
10063 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
10064 let target_end = target_buffer
10065 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
10066 target_buffer.anchor_after(target_start)
10067 ..target_buffer.anchor_before(target_end)
10068 })?;
10069 Location {
10070 buffer: target_buffer_handle,
10071 range,
10072 }
10073 }),
10074 None => None,
10075 };
10076 Ok(location)
10077 })
10078 }
10079
10080 pub fn find_all_references(
10081 &mut self,
10082 _: &FindAllReferences,
10083 cx: &mut ViewContext<Self>,
10084 ) -> Option<Task<Result<Navigated>>> {
10085 let selection = self.selections.newest::<usize>(cx);
10086 let multi_buffer = self.buffer.read(cx);
10087 let head = selection.head();
10088
10089 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
10090 let head_anchor = multi_buffer_snapshot.anchor_at(
10091 head,
10092 if head < selection.tail() {
10093 Bias::Right
10094 } else {
10095 Bias::Left
10096 },
10097 );
10098
10099 match self
10100 .find_all_references_task_sources
10101 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
10102 {
10103 Ok(_) => {
10104 log::info!(
10105 "Ignoring repeated FindAllReferences invocation with the position of already running task"
10106 );
10107 return None;
10108 }
10109 Err(i) => {
10110 self.find_all_references_task_sources.insert(i, head_anchor);
10111 }
10112 }
10113
10114 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
10115 let workspace = self.workspace()?;
10116 let project = workspace.read(cx).project().clone();
10117 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
10118 Some(cx.spawn(|editor, mut cx| async move {
10119 let _cleanup = defer({
10120 let mut cx = cx.clone();
10121 move || {
10122 let _ = editor.update(&mut cx, |editor, _| {
10123 if let Ok(i) =
10124 editor
10125 .find_all_references_task_sources
10126 .binary_search_by(|anchor| {
10127 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
10128 })
10129 {
10130 editor.find_all_references_task_sources.remove(i);
10131 }
10132 });
10133 }
10134 });
10135
10136 let locations = references.await?;
10137 if locations.is_empty() {
10138 return anyhow::Ok(Navigated::No);
10139 }
10140
10141 workspace.update(&mut cx, |workspace, cx| {
10142 let title = locations
10143 .first()
10144 .as_ref()
10145 .map(|location| {
10146 let buffer = location.buffer.read(cx);
10147 format!(
10148 "References to `{}`",
10149 buffer
10150 .text_for_range(location.range.clone())
10151 .collect::<String>()
10152 )
10153 })
10154 .unwrap();
10155 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
10156 Navigated::Yes
10157 })
10158 }))
10159 }
10160
10161 /// Opens a multibuffer with the given project locations in it
10162 pub fn open_locations_in_multibuffer(
10163 workspace: &mut Workspace,
10164 mut locations: Vec<Location>,
10165 title: String,
10166 split: bool,
10167 cx: &mut ViewContext<Workspace>,
10168 ) {
10169 // If there are multiple definitions, open them in a multibuffer
10170 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10171 let mut locations = locations.into_iter().peekable();
10172 let mut ranges_to_highlight = Vec::new();
10173 let capability = workspace.project().read(cx).capability();
10174
10175 let excerpt_buffer = cx.new_model(|cx| {
10176 let mut multibuffer = MultiBuffer::new(capability);
10177 while let Some(location) = locations.next() {
10178 let buffer = location.buffer.read(cx);
10179 let mut ranges_for_buffer = Vec::new();
10180 let range = location.range.to_offset(buffer);
10181 ranges_for_buffer.push(range.clone());
10182
10183 while let Some(next_location) = locations.peek() {
10184 if next_location.buffer == location.buffer {
10185 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10186 locations.next();
10187 } else {
10188 break;
10189 }
10190 }
10191
10192 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10193 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10194 location.buffer.clone(),
10195 ranges_for_buffer,
10196 DEFAULT_MULTIBUFFER_CONTEXT,
10197 cx,
10198 ))
10199 }
10200
10201 multibuffer.with_title(title)
10202 });
10203
10204 let editor = cx.new_view(|cx| {
10205 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10206 });
10207 editor.update(cx, |editor, cx| {
10208 if let Some(first_range) = ranges_to_highlight.first() {
10209 editor.change_selections(None, cx, |selections| {
10210 selections.clear_disjoint();
10211 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10212 });
10213 }
10214 editor.highlight_background::<Self>(
10215 &ranges_to_highlight,
10216 |theme| theme.editor_highlighted_line_background,
10217 cx,
10218 );
10219 });
10220
10221 let item = Box::new(editor);
10222 let item_id = item.item_id();
10223
10224 if split {
10225 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10226 } else {
10227 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10228 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10229 pane.close_current_preview_item(cx)
10230 } else {
10231 None
10232 }
10233 });
10234 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10235 }
10236 workspace.active_pane().update(cx, |pane, cx| {
10237 pane.set_preview_item_id(Some(item_id), cx);
10238 });
10239 }
10240
10241 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10242 use language::ToOffset as _;
10243
10244 let provider = self.semantics_provider.clone()?;
10245 let selection = self.selections.newest_anchor().clone();
10246 let (cursor_buffer, cursor_buffer_position) = self
10247 .buffer
10248 .read(cx)
10249 .text_anchor_for_position(selection.head(), cx)?;
10250 let (tail_buffer, cursor_buffer_position_end) = self
10251 .buffer
10252 .read(cx)
10253 .text_anchor_for_position(selection.tail(), cx)?;
10254 if tail_buffer != cursor_buffer {
10255 return None;
10256 }
10257
10258 let snapshot = cursor_buffer.read(cx).snapshot();
10259 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10260 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10261 let prepare_rename = provider
10262 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10263 .unwrap_or_else(|| Task::ready(Ok(None)));
10264 drop(snapshot);
10265
10266 Some(cx.spawn(|this, mut cx| async move {
10267 let rename_range = if let Some(range) = prepare_rename.await? {
10268 Some(range)
10269 } else {
10270 this.update(&mut cx, |this, cx| {
10271 let buffer = this.buffer.read(cx).snapshot(cx);
10272 let mut buffer_highlights = this
10273 .document_highlights_for_position(selection.head(), &buffer)
10274 .filter(|highlight| {
10275 highlight.start.excerpt_id == selection.head().excerpt_id
10276 && highlight.end.excerpt_id == selection.head().excerpt_id
10277 });
10278 buffer_highlights
10279 .next()
10280 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10281 })?
10282 };
10283 if let Some(rename_range) = rename_range {
10284 this.update(&mut cx, |this, cx| {
10285 let snapshot = cursor_buffer.read(cx).snapshot();
10286 let rename_buffer_range = rename_range.to_offset(&snapshot);
10287 let cursor_offset_in_rename_range =
10288 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10289 let cursor_offset_in_rename_range_end =
10290 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10291
10292 this.take_rename(false, cx);
10293 let buffer = this.buffer.read(cx).read(cx);
10294 let cursor_offset = selection.head().to_offset(&buffer);
10295 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10296 let rename_end = rename_start + rename_buffer_range.len();
10297 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10298 let mut old_highlight_id = None;
10299 let old_name: Arc<str> = buffer
10300 .chunks(rename_start..rename_end, true)
10301 .map(|chunk| {
10302 if old_highlight_id.is_none() {
10303 old_highlight_id = chunk.syntax_highlight_id;
10304 }
10305 chunk.text
10306 })
10307 .collect::<String>()
10308 .into();
10309
10310 drop(buffer);
10311
10312 // Position the selection in the rename editor so that it matches the current selection.
10313 this.show_local_selections = false;
10314 let rename_editor = cx.new_view(|cx| {
10315 let mut editor = Editor::single_line(cx);
10316 editor.buffer.update(cx, |buffer, cx| {
10317 buffer.edit([(0..0, old_name.clone())], None, cx)
10318 });
10319 let rename_selection_range = match cursor_offset_in_rename_range
10320 .cmp(&cursor_offset_in_rename_range_end)
10321 {
10322 Ordering::Equal => {
10323 editor.select_all(&SelectAll, cx);
10324 return editor;
10325 }
10326 Ordering::Less => {
10327 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10328 }
10329 Ordering::Greater => {
10330 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10331 }
10332 };
10333 if rename_selection_range.end > old_name.len() {
10334 editor.select_all(&SelectAll, cx);
10335 } else {
10336 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10337 s.select_ranges([rename_selection_range]);
10338 });
10339 }
10340 editor
10341 });
10342 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10343 if e == &EditorEvent::Focused {
10344 cx.emit(EditorEvent::FocusedIn)
10345 }
10346 })
10347 .detach();
10348
10349 let write_highlights =
10350 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10351 let read_highlights =
10352 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10353 let ranges = write_highlights
10354 .iter()
10355 .flat_map(|(_, ranges)| ranges.iter())
10356 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10357 .cloned()
10358 .collect();
10359
10360 this.highlight_text::<Rename>(
10361 ranges,
10362 HighlightStyle {
10363 fade_out: Some(0.6),
10364 ..Default::default()
10365 },
10366 cx,
10367 );
10368 let rename_focus_handle = rename_editor.focus_handle(cx);
10369 cx.focus(&rename_focus_handle);
10370 let block_id = this.insert_blocks(
10371 [BlockProperties {
10372 style: BlockStyle::Flex,
10373 placement: BlockPlacement::Below(range.start),
10374 height: 1,
10375 render: Box::new({
10376 let rename_editor = rename_editor.clone();
10377 move |cx: &mut BlockContext| {
10378 let mut text_style = cx.editor_style.text.clone();
10379 if let Some(highlight_style) = old_highlight_id
10380 .and_then(|h| h.style(&cx.editor_style.syntax))
10381 {
10382 text_style = text_style.highlight(highlight_style);
10383 }
10384 div()
10385 .pl(cx.anchor_x)
10386 .child(EditorElement::new(
10387 &rename_editor,
10388 EditorStyle {
10389 background: cx.theme().system().transparent,
10390 local_player: cx.editor_style.local_player,
10391 text: text_style,
10392 scrollbar_width: cx.editor_style.scrollbar_width,
10393 syntax: cx.editor_style.syntax.clone(),
10394 status: cx.editor_style.status.clone(),
10395 inlay_hints_style: HighlightStyle {
10396 font_weight: Some(FontWeight::BOLD),
10397 ..make_inlay_hints_style(cx)
10398 },
10399 suggestions_style: HighlightStyle {
10400 color: Some(cx.theme().status().predictive),
10401 ..HighlightStyle::default()
10402 },
10403 ..EditorStyle::default()
10404 },
10405 ))
10406 .into_any_element()
10407 }
10408 }),
10409 priority: 0,
10410 }],
10411 Some(Autoscroll::fit()),
10412 cx,
10413 )[0];
10414 this.pending_rename = Some(RenameState {
10415 range,
10416 old_name,
10417 editor: rename_editor,
10418 block_id,
10419 });
10420 })?;
10421 }
10422
10423 Ok(())
10424 }))
10425 }
10426
10427 pub fn confirm_rename(
10428 &mut self,
10429 _: &ConfirmRename,
10430 cx: &mut ViewContext<Self>,
10431 ) -> Option<Task<Result<()>>> {
10432 let rename = self.take_rename(false, cx)?;
10433 let workspace = self.workspace()?.downgrade();
10434 let (buffer, start) = self
10435 .buffer
10436 .read(cx)
10437 .text_anchor_for_position(rename.range.start, cx)?;
10438 let (end_buffer, _) = self
10439 .buffer
10440 .read(cx)
10441 .text_anchor_for_position(rename.range.end, cx)?;
10442 if buffer != end_buffer {
10443 return None;
10444 }
10445
10446 let old_name = rename.old_name;
10447 let new_name = rename.editor.read(cx).text(cx);
10448
10449 let rename = self.semantics_provider.as_ref()?.perform_rename(
10450 &buffer,
10451 start,
10452 new_name.clone(),
10453 cx,
10454 )?;
10455
10456 Some(cx.spawn(|editor, mut cx| async move {
10457 let project_transaction = rename.await?;
10458 Self::open_project_transaction(
10459 &editor,
10460 workspace,
10461 project_transaction,
10462 format!("Rename: {} → {}", old_name, new_name),
10463 cx.clone(),
10464 )
10465 .await?;
10466
10467 editor.update(&mut cx, |editor, cx| {
10468 editor.refresh_document_highlights(cx);
10469 })?;
10470 Ok(())
10471 }))
10472 }
10473
10474 fn take_rename(
10475 &mut self,
10476 moving_cursor: bool,
10477 cx: &mut ViewContext<Self>,
10478 ) -> Option<RenameState> {
10479 let rename = self.pending_rename.take()?;
10480 if rename.editor.focus_handle(cx).is_focused(cx) {
10481 cx.focus(&self.focus_handle);
10482 }
10483
10484 self.remove_blocks(
10485 [rename.block_id].into_iter().collect(),
10486 Some(Autoscroll::fit()),
10487 cx,
10488 );
10489 self.clear_highlights::<Rename>(cx);
10490 self.show_local_selections = true;
10491
10492 if moving_cursor {
10493 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10494 editor.selections.newest::<usize>(cx).head()
10495 });
10496
10497 // Update the selection to match the position of the selection inside
10498 // the rename editor.
10499 let snapshot = self.buffer.read(cx).read(cx);
10500 let rename_range = rename.range.to_offset(&snapshot);
10501 let cursor_in_editor = snapshot
10502 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10503 .min(rename_range.end);
10504 drop(snapshot);
10505
10506 self.change_selections(None, cx, |s| {
10507 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10508 });
10509 } else {
10510 self.refresh_document_highlights(cx);
10511 }
10512
10513 Some(rename)
10514 }
10515
10516 pub fn pending_rename(&self) -> Option<&RenameState> {
10517 self.pending_rename.as_ref()
10518 }
10519
10520 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10521 let project = match &self.project {
10522 Some(project) => project.clone(),
10523 None => return None,
10524 };
10525
10526 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10527 }
10528
10529 fn format_selections(
10530 &mut self,
10531 _: &FormatSelections,
10532 cx: &mut ViewContext<Self>,
10533 ) -> Option<Task<Result<()>>> {
10534 let project = match &self.project {
10535 Some(project) => project.clone(),
10536 None => return None,
10537 };
10538
10539 let selections = self
10540 .selections
10541 .all_adjusted(cx)
10542 .into_iter()
10543 .filter(|s| !s.is_empty())
10544 .collect_vec();
10545
10546 Some(self.perform_format(
10547 project,
10548 FormatTrigger::Manual,
10549 FormatTarget::Ranges(selections),
10550 cx,
10551 ))
10552 }
10553
10554 fn perform_format(
10555 &mut self,
10556 project: Model<Project>,
10557 trigger: FormatTrigger,
10558 target: FormatTarget,
10559 cx: &mut ViewContext<Self>,
10560 ) -> Task<Result<()>> {
10561 let buffer = self.buffer().clone();
10562 let mut buffers = buffer.read(cx).all_buffers();
10563 if trigger == FormatTrigger::Save {
10564 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10565 }
10566
10567 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10568 let format = project.update(cx, |project, cx| {
10569 project.format(buffers, true, trigger, target, cx)
10570 });
10571
10572 cx.spawn(|_, mut cx| async move {
10573 let transaction = futures::select_biased! {
10574 () = timeout => {
10575 log::warn!("timed out waiting for formatting");
10576 None
10577 }
10578 transaction = format.log_err().fuse() => transaction,
10579 };
10580
10581 buffer
10582 .update(&mut cx, |buffer, cx| {
10583 if let Some(transaction) = transaction {
10584 if !buffer.is_singleton() {
10585 buffer.push_transaction(&transaction.0, cx);
10586 }
10587 }
10588
10589 cx.notify();
10590 })
10591 .ok();
10592
10593 Ok(())
10594 })
10595 }
10596
10597 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10598 if let Some(project) = self.project.clone() {
10599 self.buffer.update(cx, |multi_buffer, cx| {
10600 project.update(cx, |project, cx| {
10601 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10602 });
10603 })
10604 }
10605 }
10606
10607 fn cancel_language_server_work(
10608 &mut self,
10609 _: &actions::CancelLanguageServerWork,
10610 cx: &mut ViewContext<Self>,
10611 ) {
10612 if let Some(project) = self.project.clone() {
10613 self.buffer.update(cx, |multi_buffer, cx| {
10614 project.update(cx, |project, cx| {
10615 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10616 });
10617 })
10618 }
10619 }
10620
10621 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10622 cx.show_character_palette();
10623 }
10624
10625 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10626 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10627 let buffer = self.buffer.read(cx).snapshot(cx);
10628 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10629 let is_valid = buffer
10630 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10631 .any(|entry| {
10632 entry.diagnostic.is_primary
10633 && !entry.range.is_empty()
10634 && entry.range.start == primary_range_start
10635 && entry.diagnostic.message == active_diagnostics.primary_message
10636 });
10637
10638 if is_valid != active_diagnostics.is_valid {
10639 active_diagnostics.is_valid = is_valid;
10640 let mut new_styles = HashMap::default();
10641 for (block_id, diagnostic) in &active_diagnostics.blocks {
10642 new_styles.insert(
10643 *block_id,
10644 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10645 );
10646 }
10647 self.display_map.update(cx, |display_map, _cx| {
10648 display_map.replace_blocks(new_styles)
10649 });
10650 }
10651 }
10652 }
10653
10654 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10655 self.dismiss_diagnostics(cx);
10656 let snapshot = self.snapshot(cx);
10657 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10658 let buffer = self.buffer.read(cx).snapshot(cx);
10659
10660 let mut primary_range = None;
10661 let mut primary_message = None;
10662 let mut group_end = Point::zero();
10663 let diagnostic_group = buffer
10664 .diagnostic_group::<MultiBufferPoint>(group_id)
10665 .filter_map(|entry| {
10666 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10667 && (entry.range.start.row == entry.range.end.row
10668 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10669 {
10670 return None;
10671 }
10672 if entry.range.end > group_end {
10673 group_end = entry.range.end;
10674 }
10675 if entry.diagnostic.is_primary {
10676 primary_range = Some(entry.range.clone());
10677 primary_message = Some(entry.diagnostic.message.clone());
10678 }
10679 Some(entry)
10680 })
10681 .collect::<Vec<_>>();
10682 let primary_range = primary_range?;
10683 let primary_message = primary_message?;
10684 let primary_range =
10685 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10686
10687 let blocks = display_map
10688 .insert_blocks(
10689 diagnostic_group.iter().map(|entry| {
10690 let diagnostic = entry.diagnostic.clone();
10691 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10692 BlockProperties {
10693 style: BlockStyle::Fixed,
10694 placement: BlockPlacement::Below(
10695 buffer.anchor_after(entry.range.start),
10696 ),
10697 height: message_height,
10698 render: diagnostic_block_renderer(diagnostic, None, true, true),
10699 priority: 0,
10700 }
10701 }),
10702 cx,
10703 )
10704 .into_iter()
10705 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10706 .collect();
10707
10708 Some(ActiveDiagnosticGroup {
10709 primary_range,
10710 primary_message,
10711 group_id,
10712 blocks,
10713 is_valid: true,
10714 })
10715 });
10716 self.active_diagnostics.is_some()
10717 }
10718
10719 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10720 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10721 self.display_map.update(cx, |display_map, cx| {
10722 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10723 });
10724 cx.notify();
10725 }
10726 }
10727
10728 pub fn set_selections_from_remote(
10729 &mut self,
10730 selections: Vec<Selection<Anchor>>,
10731 pending_selection: Option<Selection<Anchor>>,
10732 cx: &mut ViewContext<Self>,
10733 ) {
10734 let old_cursor_position = self.selections.newest_anchor().head();
10735 self.selections.change_with(cx, |s| {
10736 s.select_anchors(selections);
10737 if let Some(pending_selection) = pending_selection {
10738 s.set_pending(pending_selection, SelectMode::Character);
10739 } else {
10740 s.clear_pending();
10741 }
10742 });
10743 self.selections_did_change(false, &old_cursor_position, true, cx);
10744 }
10745
10746 fn push_to_selection_history(&mut self) {
10747 self.selection_history.push(SelectionHistoryEntry {
10748 selections: self.selections.disjoint_anchors(),
10749 select_next_state: self.select_next_state.clone(),
10750 select_prev_state: self.select_prev_state.clone(),
10751 add_selections_state: self.add_selections_state.clone(),
10752 });
10753 }
10754
10755 pub fn transact(
10756 &mut self,
10757 cx: &mut ViewContext<Self>,
10758 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10759 ) -> Option<TransactionId> {
10760 self.start_transaction_at(Instant::now(), cx);
10761 update(self, cx);
10762 self.end_transaction_at(Instant::now(), cx)
10763 }
10764
10765 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10766 self.end_selection(cx);
10767 if let Some(tx_id) = self
10768 .buffer
10769 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10770 {
10771 self.selection_history
10772 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10773 cx.emit(EditorEvent::TransactionBegun {
10774 transaction_id: tx_id,
10775 })
10776 }
10777 }
10778
10779 fn end_transaction_at(
10780 &mut self,
10781 now: Instant,
10782 cx: &mut ViewContext<Self>,
10783 ) -> Option<TransactionId> {
10784 if let Some(transaction_id) = self
10785 .buffer
10786 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10787 {
10788 if let Some((_, end_selections)) =
10789 self.selection_history.transaction_mut(transaction_id)
10790 {
10791 *end_selections = Some(self.selections.disjoint_anchors());
10792 } else {
10793 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10794 }
10795
10796 cx.emit(EditorEvent::Edited { transaction_id });
10797 Some(transaction_id)
10798 } else {
10799 None
10800 }
10801 }
10802
10803 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10804 let selection = self.selections.newest::<Point>(cx);
10805
10806 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10807 let range = if selection.is_empty() {
10808 let point = selection.head().to_display_point(&display_map);
10809 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10810 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10811 .to_point(&display_map);
10812 start..end
10813 } else {
10814 selection.range()
10815 };
10816 if display_map.folds_in_range(range).next().is_some() {
10817 self.unfold_lines(&Default::default(), cx)
10818 } else {
10819 self.fold(&Default::default(), cx)
10820 }
10821 }
10822
10823 pub fn toggle_fold_recursive(
10824 &mut self,
10825 _: &actions::ToggleFoldRecursive,
10826 cx: &mut ViewContext<Self>,
10827 ) {
10828 let selection = self.selections.newest::<Point>(cx);
10829
10830 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10831 let range = if selection.is_empty() {
10832 let point = selection.head().to_display_point(&display_map);
10833 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10834 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10835 .to_point(&display_map);
10836 start..end
10837 } else {
10838 selection.range()
10839 };
10840 if display_map.folds_in_range(range).next().is_some() {
10841 self.unfold_recursive(&Default::default(), cx)
10842 } else {
10843 self.fold_recursive(&Default::default(), cx)
10844 }
10845 }
10846
10847 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10848 let mut fold_ranges = Vec::new();
10849 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10850 let selections = self.selections.all_adjusted(cx);
10851
10852 for selection in selections {
10853 let range = selection.range().sorted();
10854 let buffer_start_row = range.start.row;
10855
10856 if range.start.row != range.end.row {
10857 let mut found = false;
10858 let mut row = range.start.row;
10859 while row <= range.end.row {
10860 if let Some((foldable_range, fold_text)) =
10861 { display_map.foldable_range(MultiBufferRow(row)) }
10862 {
10863 found = true;
10864 row = foldable_range.end.row + 1;
10865 fold_ranges.push((foldable_range, fold_text));
10866 } else {
10867 row += 1
10868 }
10869 }
10870 if found {
10871 continue;
10872 }
10873 }
10874
10875 for row in (0..=range.start.row).rev() {
10876 if let Some((foldable_range, fold_text)) =
10877 display_map.foldable_range(MultiBufferRow(row))
10878 {
10879 if foldable_range.end.row >= buffer_start_row {
10880 fold_ranges.push((foldable_range, fold_text));
10881 if row <= range.start.row {
10882 break;
10883 }
10884 }
10885 }
10886 }
10887 }
10888
10889 self.fold_ranges(fold_ranges, true, cx);
10890 }
10891
10892 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10893 let fold_at_level = fold_at.level;
10894 let snapshot = self.buffer.read(cx).snapshot(cx);
10895 let mut fold_ranges = Vec::new();
10896 let mut stack = vec![(0, snapshot.max_buffer_row().0, 1)];
10897
10898 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10899 while start_row < end_row {
10900 match self.snapshot(cx).foldable_range(MultiBufferRow(start_row)) {
10901 Some(foldable_range) => {
10902 let nested_start_row = foldable_range.0.start.row + 1;
10903 let nested_end_row = foldable_range.0.end.row;
10904
10905 if current_level < fold_at_level {
10906 stack.push((nested_start_row, nested_end_row, current_level + 1));
10907 } else if current_level == fold_at_level {
10908 fold_ranges.push(foldable_range);
10909 }
10910
10911 start_row = nested_end_row + 1;
10912 }
10913 None => start_row += 1,
10914 }
10915 }
10916 }
10917
10918 self.fold_ranges(fold_ranges, true, cx);
10919 }
10920
10921 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10922 let mut fold_ranges = Vec::new();
10923 let snapshot = self.buffer.read(cx).snapshot(cx);
10924
10925 for row in 0..snapshot.max_buffer_row().0 {
10926 if let Some(foldable_range) = self.snapshot(cx).foldable_range(MultiBufferRow(row)) {
10927 fold_ranges.push(foldable_range);
10928 }
10929 }
10930
10931 self.fold_ranges(fold_ranges, true, cx);
10932 }
10933
10934 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10935 let mut fold_ranges = Vec::new();
10936 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10937 let selections = self.selections.all_adjusted(cx);
10938
10939 for selection in selections {
10940 let range = selection.range().sorted();
10941 let buffer_start_row = range.start.row;
10942
10943 if range.start.row != range.end.row {
10944 let mut found = false;
10945 for row in range.start.row..=range.end.row {
10946 if let Some((foldable_range, fold_text)) =
10947 { display_map.foldable_range(MultiBufferRow(row)) }
10948 {
10949 found = true;
10950 fold_ranges.push((foldable_range, fold_text));
10951 }
10952 }
10953 if found {
10954 continue;
10955 }
10956 }
10957
10958 for row in (0..=range.start.row).rev() {
10959 if let Some((foldable_range, fold_text)) =
10960 display_map.foldable_range(MultiBufferRow(row))
10961 {
10962 if foldable_range.end.row >= buffer_start_row {
10963 fold_ranges.push((foldable_range, fold_text));
10964 } else {
10965 break;
10966 }
10967 }
10968 }
10969 }
10970
10971 self.fold_ranges(fold_ranges, true, cx);
10972 }
10973
10974 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10975 let buffer_row = fold_at.buffer_row;
10976 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10977
10978 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
10979 let autoscroll = self
10980 .selections
10981 .all::<Point>(cx)
10982 .iter()
10983 .any(|selection| fold_range.overlaps(&selection.range()));
10984
10985 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
10986 }
10987 }
10988
10989 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10990 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10991 let buffer = &display_map.buffer_snapshot;
10992 let selections = self.selections.all::<Point>(cx);
10993 let ranges = selections
10994 .iter()
10995 .map(|s| {
10996 let range = s.display_range(&display_map).sorted();
10997 let mut start = range.start.to_point(&display_map);
10998 let mut end = range.end.to_point(&display_map);
10999 start.column = 0;
11000 end.column = buffer.line_len(MultiBufferRow(end.row));
11001 start..end
11002 })
11003 .collect::<Vec<_>>();
11004
11005 self.unfold_ranges(&ranges, true, true, cx);
11006 }
11007
11008 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
11009 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11010 let selections = self.selections.all::<Point>(cx);
11011 let ranges = selections
11012 .iter()
11013 .map(|s| {
11014 let mut range = s.display_range(&display_map).sorted();
11015 *range.start.column_mut() = 0;
11016 *range.end.column_mut() = display_map.line_len(range.end.row());
11017 let start = range.start.to_point(&display_map);
11018 let end = range.end.to_point(&display_map);
11019 start..end
11020 })
11021 .collect::<Vec<_>>();
11022
11023 self.unfold_ranges(&ranges, true, true, cx);
11024 }
11025
11026 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
11027 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11028
11029 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
11030 ..Point::new(
11031 unfold_at.buffer_row.0,
11032 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
11033 );
11034
11035 let autoscroll = self
11036 .selections
11037 .all::<Point>(cx)
11038 .iter()
11039 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
11040
11041 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
11042 }
11043
11044 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
11045 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11046 self.unfold_ranges(
11047 &[Point::zero()..display_map.max_point().to_point(&display_map)],
11048 true,
11049 true,
11050 cx,
11051 );
11052 }
11053
11054 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
11055 let selections = self.selections.all::<Point>(cx);
11056 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11057 let line_mode = self.selections.line_mode;
11058 let ranges = selections.into_iter().map(|s| {
11059 if line_mode {
11060 let start = Point::new(s.start.row, 0);
11061 let end = Point::new(
11062 s.end.row,
11063 display_map
11064 .buffer_snapshot
11065 .line_len(MultiBufferRow(s.end.row)),
11066 );
11067 (start..end, display_map.fold_placeholder.clone())
11068 } else {
11069 (s.start..s.end, display_map.fold_placeholder.clone())
11070 }
11071 });
11072 self.fold_ranges(ranges, true, cx);
11073 }
11074
11075 pub fn fold_ranges<T: ToOffset + Clone>(
11076 &mut self,
11077 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
11078 auto_scroll: bool,
11079 cx: &mut ViewContext<Self>,
11080 ) {
11081 let mut fold_ranges = Vec::new();
11082 let mut buffers_affected = HashMap::default();
11083 let multi_buffer = self.buffer().read(cx);
11084 for (fold_range, fold_text) in ranges {
11085 if let Some((_, buffer, _)) =
11086 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
11087 {
11088 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11089 };
11090 fold_ranges.push((fold_range, fold_text));
11091 }
11092
11093 let mut ranges = fold_ranges.into_iter().peekable();
11094 if ranges.peek().is_some() {
11095 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
11096
11097 if auto_scroll {
11098 self.request_autoscroll(Autoscroll::fit(), cx);
11099 }
11100
11101 for buffer in buffers_affected.into_values() {
11102 self.sync_expanded_diff_hunks(buffer, cx);
11103 }
11104
11105 cx.notify();
11106
11107 if let Some(active_diagnostics) = self.active_diagnostics.take() {
11108 // Clear diagnostics block when folding a range that contains it.
11109 let snapshot = self.snapshot(cx);
11110 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
11111 drop(snapshot);
11112 self.active_diagnostics = Some(active_diagnostics);
11113 self.dismiss_diagnostics(cx);
11114 } else {
11115 self.active_diagnostics = Some(active_diagnostics);
11116 }
11117 }
11118
11119 self.scrollbar_marker_state.dirty = true;
11120 }
11121 }
11122
11123 /// Removes any folds whose ranges intersect any of the given ranges.
11124 pub fn unfold_ranges<T: ToOffset + Clone>(
11125 &mut self,
11126 ranges: &[Range<T>],
11127 inclusive: bool,
11128 auto_scroll: bool,
11129 cx: &mut ViewContext<Self>,
11130 ) {
11131 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11132 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
11133 });
11134 }
11135
11136 /// Removes any folds with the given ranges.
11137 pub fn remove_folds_with_type<T: ToOffset + Clone>(
11138 &mut self,
11139 ranges: &[Range<T>],
11140 type_id: TypeId,
11141 auto_scroll: bool,
11142 cx: &mut ViewContext<Self>,
11143 ) {
11144 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11145 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
11146 });
11147 }
11148
11149 fn remove_folds_with<T: ToOffset + Clone>(
11150 &mut self,
11151 ranges: &[Range<T>],
11152 auto_scroll: bool,
11153 cx: &mut ViewContext<Self>,
11154 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
11155 ) {
11156 if ranges.is_empty() {
11157 return;
11158 }
11159
11160 let mut buffers_affected = HashMap::default();
11161 let multi_buffer = self.buffer().read(cx);
11162 for range in ranges {
11163 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11164 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11165 };
11166 }
11167
11168 self.display_map.update(cx, update);
11169 if auto_scroll {
11170 self.request_autoscroll(Autoscroll::fit(), cx);
11171 }
11172
11173 for buffer in buffers_affected.into_values() {
11174 self.sync_expanded_diff_hunks(buffer, cx);
11175 }
11176
11177 cx.notify();
11178 self.scrollbar_marker_state.dirty = true;
11179 self.active_indent_guides_state.dirty = true;
11180 }
11181
11182 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11183 self.display_map.read(cx).fold_placeholder.clone()
11184 }
11185
11186 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11187 if hovered != self.gutter_hovered {
11188 self.gutter_hovered = hovered;
11189 cx.notify();
11190 }
11191 }
11192
11193 pub fn insert_blocks(
11194 &mut self,
11195 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11196 autoscroll: Option<Autoscroll>,
11197 cx: &mut ViewContext<Self>,
11198 ) -> Vec<CustomBlockId> {
11199 let blocks = self
11200 .display_map
11201 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11202 if let Some(autoscroll) = autoscroll {
11203 self.request_autoscroll(autoscroll, cx);
11204 }
11205 cx.notify();
11206 blocks
11207 }
11208
11209 pub fn resize_blocks(
11210 &mut self,
11211 heights: HashMap<CustomBlockId, u32>,
11212 autoscroll: Option<Autoscroll>,
11213 cx: &mut ViewContext<Self>,
11214 ) {
11215 self.display_map
11216 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11217 if let Some(autoscroll) = autoscroll {
11218 self.request_autoscroll(autoscroll, cx);
11219 }
11220 cx.notify();
11221 }
11222
11223 pub fn replace_blocks(
11224 &mut self,
11225 renderers: HashMap<CustomBlockId, RenderBlock>,
11226 autoscroll: Option<Autoscroll>,
11227 cx: &mut ViewContext<Self>,
11228 ) {
11229 self.display_map
11230 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11231 if let Some(autoscroll) = autoscroll {
11232 self.request_autoscroll(autoscroll, cx);
11233 }
11234 cx.notify();
11235 }
11236
11237 pub fn remove_blocks(
11238 &mut self,
11239 block_ids: HashSet<CustomBlockId>,
11240 autoscroll: Option<Autoscroll>,
11241 cx: &mut ViewContext<Self>,
11242 ) {
11243 self.display_map.update(cx, |display_map, cx| {
11244 display_map.remove_blocks(block_ids, cx)
11245 });
11246 if let Some(autoscroll) = autoscroll {
11247 self.request_autoscroll(autoscroll, cx);
11248 }
11249 cx.notify();
11250 }
11251
11252 pub fn row_for_block(
11253 &self,
11254 block_id: CustomBlockId,
11255 cx: &mut ViewContext<Self>,
11256 ) -> Option<DisplayRow> {
11257 self.display_map
11258 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11259 }
11260
11261 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11262 self.focused_block = Some(focused_block);
11263 }
11264
11265 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11266 self.focused_block.take()
11267 }
11268
11269 pub fn insert_creases(
11270 &mut self,
11271 creases: impl IntoIterator<Item = Crease>,
11272 cx: &mut ViewContext<Self>,
11273 ) -> Vec<CreaseId> {
11274 self.display_map
11275 .update(cx, |map, cx| map.insert_creases(creases, cx))
11276 }
11277
11278 pub fn remove_creases(
11279 &mut self,
11280 ids: impl IntoIterator<Item = CreaseId>,
11281 cx: &mut ViewContext<Self>,
11282 ) {
11283 self.display_map
11284 .update(cx, |map, cx| map.remove_creases(ids, cx));
11285 }
11286
11287 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11288 self.display_map
11289 .update(cx, |map, cx| map.snapshot(cx))
11290 .longest_row()
11291 }
11292
11293 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11294 self.display_map
11295 .update(cx, |map, cx| map.snapshot(cx))
11296 .max_point()
11297 }
11298
11299 pub fn text(&self, cx: &AppContext) -> String {
11300 self.buffer.read(cx).read(cx).text()
11301 }
11302
11303 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11304 let text = self.text(cx);
11305 let text = text.trim();
11306
11307 if text.is_empty() {
11308 return None;
11309 }
11310
11311 Some(text.to_string())
11312 }
11313
11314 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11315 self.transact(cx, |this, cx| {
11316 this.buffer
11317 .read(cx)
11318 .as_singleton()
11319 .expect("you can only call set_text on editors for singleton buffers")
11320 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11321 });
11322 }
11323
11324 pub fn display_text(&self, cx: &mut AppContext) -> String {
11325 self.display_map
11326 .update(cx, |map, cx| map.snapshot(cx))
11327 .text()
11328 }
11329
11330 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11331 let mut wrap_guides = smallvec::smallvec![];
11332
11333 if self.show_wrap_guides == Some(false) {
11334 return wrap_guides;
11335 }
11336
11337 let settings = self.buffer.read(cx).settings_at(0, cx);
11338 if settings.show_wrap_guides {
11339 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11340 wrap_guides.push((soft_wrap as usize, true));
11341 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11342 wrap_guides.push((soft_wrap as usize, true));
11343 }
11344 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11345 }
11346
11347 wrap_guides
11348 }
11349
11350 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11351 let settings = self.buffer.read(cx).settings_at(0, cx);
11352 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11353 match mode {
11354 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11355 SoftWrap::None
11356 }
11357 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11358 language_settings::SoftWrap::PreferredLineLength => {
11359 SoftWrap::Column(settings.preferred_line_length)
11360 }
11361 language_settings::SoftWrap::Bounded => {
11362 SoftWrap::Bounded(settings.preferred_line_length)
11363 }
11364 }
11365 }
11366
11367 pub fn set_soft_wrap_mode(
11368 &mut self,
11369 mode: language_settings::SoftWrap,
11370 cx: &mut ViewContext<Self>,
11371 ) {
11372 self.soft_wrap_mode_override = Some(mode);
11373 cx.notify();
11374 }
11375
11376 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11377 self.text_style_refinement = Some(style);
11378 }
11379
11380 /// called by the Element so we know what style we were most recently rendered with.
11381 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11382 let rem_size = cx.rem_size();
11383 self.display_map.update(cx, |map, cx| {
11384 map.set_font(
11385 style.text.font(),
11386 style.text.font_size.to_pixels(rem_size),
11387 cx,
11388 )
11389 });
11390 self.style = Some(style);
11391 }
11392
11393 pub fn style(&self) -> Option<&EditorStyle> {
11394 self.style.as_ref()
11395 }
11396
11397 // Called by the element. This method is not designed to be called outside of the editor
11398 // element's layout code because it does not notify when rewrapping is computed synchronously.
11399 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11400 self.display_map
11401 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11402 }
11403
11404 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11405 if self.soft_wrap_mode_override.is_some() {
11406 self.soft_wrap_mode_override.take();
11407 } else {
11408 let soft_wrap = match self.soft_wrap_mode(cx) {
11409 SoftWrap::GitDiff => return,
11410 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11411 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11412 language_settings::SoftWrap::None
11413 }
11414 };
11415 self.soft_wrap_mode_override = Some(soft_wrap);
11416 }
11417 cx.notify();
11418 }
11419
11420 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11421 let Some(workspace) = self.workspace() else {
11422 return;
11423 };
11424 let fs = workspace.read(cx).app_state().fs.clone();
11425 let current_show = TabBarSettings::get_global(cx).show;
11426 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11427 setting.show = Some(!current_show);
11428 });
11429 }
11430
11431 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11432 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11433 self.buffer
11434 .read(cx)
11435 .settings_at(0, cx)
11436 .indent_guides
11437 .enabled
11438 });
11439 self.show_indent_guides = Some(!currently_enabled);
11440 cx.notify();
11441 }
11442
11443 fn should_show_indent_guides(&self) -> Option<bool> {
11444 self.show_indent_guides
11445 }
11446
11447 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11448 let mut editor_settings = EditorSettings::get_global(cx).clone();
11449 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11450 EditorSettings::override_global(editor_settings, cx);
11451 }
11452
11453 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11454 self.use_relative_line_numbers
11455 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11456 }
11457
11458 pub fn toggle_relative_line_numbers(
11459 &mut self,
11460 _: &ToggleRelativeLineNumbers,
11461 cx: &mut ViewContext<Self>,
11462 ) {
11463 let is_relative = self.should_use_relative_line_numbers(cx);
11464 self.set_relative_line_number(Some(!is_relative), cx)
11465 }
11466
11467 pub fn set_relative_line_number(
11468 &mut self,
11469 is_relative: Option<bool>,
11470 cx: &mut ViewContext<Self>,
11471 ) {
11472 self.use_relative_line_numbers = is_relative;
11473 cx.notify();
11474 }
11475
11476 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11477 self.show_gutter = show_gutter;
11478 cx.notify();
11479 }
11480
11481 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11482 self.show_line_numbers = Some(show_line_numbers);
11483 cx.notify();
11484 }
11485
11486 pub fn set_show_git_diff_gutter(
11487 &mut self,
11488 show_git_diff_gutter: bool,
11489 cx: &mut ViewContext<Self>,
11490 ) {
11491 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11492 cx.notify();
11493 }
11494
11495 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11496 self.show_code_actions = Some(show_code_actions);
11497 cx.notify();
11498 }
11499
11500 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11501 self.show_runnables = Some(show_runnables);
11502 cx.notify();
11503 }
11504
11505 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11506 if self.display_map.read(cx).masked != masked {
11507 self.display_map.update(cx, |map, _| map.masked = masked);
11508 }
11509 cx.notify()
11510 }
11511
11512 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11513 self.show_wrap_guides = Some(show_wrap_guides);
11514 cx.notify();
11515 }
11516
11517 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11518 self.show_indent_guides = Some(show_indent_guides);
11519 cx.notify();
11520 }
11521
11522 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11523 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11524 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11525 if let Some(dir) = file.abs_path(cx).parent() {
11526 return Some(dir.to_owned());
11527 }
11528 }
11529
11530 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11531 return Some(project_path.path.to_path_buf());
11532 }
11533 }
11534
11535 None
11536 }
11537
11538 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11539 self.active_excerpt(cx)?
11540 .1
11541 .read(cx)
11542 .file()
11543 .and_then(|f| f.as_local())
11544 }
11545
11546 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11547 if let Some(target) = self.target_file(cx) {
11548 cx.reveal_path(&target.abs_path(cx));
11549 }
11550 }
11551
11552 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11553 if let Some(file) = self.target_file(cx) {
11554 if let Some(path) = file.abs_path(cx).to_str() {
11555 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11556 }
11557 }
11558 }
11559
11560 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11561 if let Some(file) = self.target_file(cx) {
11562 if let Some(path) = file.path().to_str() {
11563 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11564 }
11565 }
11566 }
11567
11568 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11569 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11570
11571 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11572 self.start_git_blame(true, cx);
11573 }
11574
11575 cx.notify();
11576 }
11577
11578 pub fn toggle_git_blame_inline(
11579 &mut self,
11580 _: &ToggleGitBlameInline,
11581 cx: &mut ViewContext<Self>,
11582 ) {
11583 self.toggle_git_blame_inline_internal(true, cx);
11584 cx.notify();
11585 }
11586
11587 pub fn git_blame_inline_enabled(&self) -> bool {
11588 self.git_blame_inline_enabled
11589 }
11590
11591 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11592 self.show_selection_menu = self
11593 .show_selection_menu
11594 .map(|show_selections_menu| !show_selections_menu)
11595 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11596
11597 cx.notify();
11598 }
11599
11600 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11601 self.show_selection_menu
11602 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11603 }
11604
11605 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11606 if let Some(project) = self.project.as_ref() {
11607 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11608 return;
11609 };
11610
11611 if buffer.read(cx).file().is_none() {
11612 return;
11613 }
11614
11615 let focused = self.focus_handle(cx).contains_focused(cx);
11616
11617 let project = project.clone();
11618 let blame =
11619 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11620 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11621 self.blame = Some(blame);
11622 }
11623 }
11624
11625 fn toggle_git_blame_inline_internal(
11626 &mut self,
11627 user_triggered: bool,
11628 cx: &mut ViewContext<Self>,
11629 ) {
11630 if self.git_blame_inline_enabled {
11631 self.git_blame_inline_enabled = false;
11632 self.show_git_blame_inline = false;
11633 self.show_git_blame_inline_delay_task.take();
11634 } else {
11635 self.git_blame_inline_enabled = true;
11636 self.start_git_blame_inline(user_triggered, cx);
11637 }
11638
11639 cx.notify();
11640 }
11641
11642 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11643 self.start_git_blame(user_triggered, cx);
11644
11645 if ProjectSettings::get_global(cx)
11646 .git
11647 .inline_blame_delay()
11648 .is_some()
11649 {
11650 self.start_inline_blame_timer(cx);
11651 } else {
11652 self.show_git_blame_inline = true
11653 }
11654 }
11655
11656 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11657 self.blame.as_ref()
11658 }
11659
11660 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11661 self.show_git_blame_gutter && self.has_blame_entries(cx)
11662 }
11663
11664 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11665 self.show_git_blame_inline
11666 && self.focus_handle.is_focused(cx)
11667 && !self.newest_selection_head_on_empty_line(cx)
11668 && self.has_blame_entries(cx)
11669 }
11670
11671 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11672 self.blame()
11673 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11674 }
11675
11676 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11677 let cursor_anchor = self.selections.newest_anchor().head();
11678
11679 let snapshot = self.buffer.read(cx).snapshot(cx);
11680 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11681
11682 snapshot.line_len(buffer_row) == 0
11683 }
11684
11685 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11686 let buffer_and_selection = maybe!({
11687 let selection = self.selections.newest::<Point>(cx);
11688 let selection_range = selection.range();
11689
11690 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11691 (buffer, selection_range.start.row..selection_range.end.row)
11692 } else {
11693 let buffer_ranges = self
11694 .buffer()
11695 .read(cx)
11696 .range_to_buffer_ranges(selection_range, cx);
11697
11698 let (buffer, range, _) = if selection.reversed {
11699 buffer_ranges.first()
11700 } else {
11701 buffer_ranges.last()
11702 }?;
11703
11704 let snapshot = buffer.read(cx).snapshot();
11705 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11706 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11707 (buffer.clone(), selection)
11708 };
11709
11710 Some((buffer, selection))
11711 });
11712
11713 let Some((buffer, selection)) = buffer_and_selection else {
11714 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11715 };
11716
11717 let Some(project) = self.project.as_ref() else {
11718 return Task::ready(Err(anyhow!("editor does not have project")));
11719 };
11720
11721 project.update(cx, |project, cx| {
11722 project.get_permalink_to_line(&buffer, selection, cx)
11723 })
11724 }
11725
11726 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11727 let permalink_task = self.get_permalink_to_line(cx);
11728 let workspace = self.workspace();
11729
11730 cx.spawn(|_, mut cx| async move {
11731 match permalink_task.await {
11732 Ok(permalink) => {
11733 cx.update(|cx| {
11734 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11735 })
11736 .ok();
11737 }
11738 Err(err) => {
11739 let message = format!("Failed to copy permalink: {err}");
11740
11741 Err::<(), anyhow::Error>(err).log_err();
11742
11743 if let Some(workspace) = workspace {
11744 workspace
11745 .update(&mut cx, |workspace, cx| {
11746 struct CopyPermalinkToLine;
11747
11748 workspace.show_toast(
11749 Toast::new(
11750 NotificationId::unique::<CopyPermalinkToLine>(),
11751 message,
11752 ),
11753 cx,
11754 )
11755 })
11756 .ok();
11757 }
11758 }
11759 }
11760 })
11761 .detach();
11762 }
11763
11764 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11765 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11766 if let Some(file) = self.target_file(cx) {
11767 if let Some(path) = file.path().to_str() {
11768 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11769 }
11770 }
11771 }
11772
11773 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11774 let permalink_task = self.get_permalink_to_line(cx);
11775 let workspace = self.workspace();
11776
11777 cx.spawn(|_, mut cx| async move {
11778 match permalink_task.await {
11779 Ok(permalink) => {
11780 cx.update(|cx| {
11781 cx.open_url(permalink.as_ref());
11782 })
11783 .ok();
11784 }
11785 Err(err) => {
11786 let message = format!("Failed to open permalink: {err}");
11787
11788 Err::<(), anyhow::Error>(err).log_err();
11789
11790 if let Some(workspace) = workspace {
11791 workspace
11792 .update(&mut cx, |workspace, cx| {
11793 struct OpenPermalinkToLine;
11794
11795 workspace.show_toast(
11796 Toast::new(
11797 NotificationId::unique::<OpenPermalinkToLine>(),
11798 message,
11799 ),
11800 cx,
11801 )
11802 })
11803 .ok();
11804 }
11805 }
11806 }
11807 })
11808 .detach();
11809 }
11810
11811 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11812 /// last highlight added will be used.
11813 ///
11814 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11815 pub fn highlight_rows<T: 'static>(
11816 &mut self,
11817 range: Range<Anchor>,
11818 color: Hsla,
11819 should_autoscroll: bool,
11820 cx: &mut ViewContext<Self>,
11821 ) {
11822 let snapshot = self.buffer().read(cx).snapshot(cx);
11823 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11824 let ix = row_highlights.binary_search_by(|highlight| {
11825 Ordering::Equal
11826 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11827 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11828 });
11829
11830 if let Err(mut ix) = ix {
11831 let index = post_inc(&mut self.highlight_order);
11832
11833 // If this range intersects with the preceding highlight, then merge it with
11834 // the preceding highlight. Otherwise insert a new highlight.
11835 let mut merged = false;
11836 if ix > 0 {
11837 let prev_highlight = &mut row_highlights[ix - 1];
11838 if prev_highlight
11839 .range
11840 .end
11841 .cmp(&range.start, &snapshot)
11842 .is_ge()
11843 {
11844 ix -= 1;
11845 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11846 prev_highlight.range.end = range.end;
11847 }
11848 merged = true;
11849 prev_highlight.index = index;
11850 prev_highlight.color = color;
11851 prev_highlight.should_autoscroll = should_autoscroll;
11852 }
11853 }
11854
11855 if !merged {
11856 row_highlights.insert(
11857 ix,
11858 RowHighlight {
11859 range: range.clone(),
11860 index,
11861 color,
11862 should_autoscroll,
11863 },
11864 );
11865 }
11866
11867 // If any of the following highlights intersect with this one, merge them.
11868 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11869 let highlight = &row_highlights[ix];
11870 if next_highlight
11871 .range
11872 .start
11873 .cmp(&highlight.range.end, &snapshot)
11874 .is_le()
11875 {
11876 if next_highlight
11877 .range
11878 .end
11879 .cmp(&highlight.range.end, &snapshot)
11880 .is_gt()
11881 {
11882 row_highlights[ix].range.end = next_highlight.range.end;
11883 }
11884 row_highlights.remove(ix + 1);
11885 } else {
11886 break;
11887 }
11888 }
11889 }
11890 }
11891
11892 /// Remove any highlighted row ranges of the given type that intersect the
11893 /// given ranges.
11894 pub fn remove_highlighted_rows<T: 'static>(
11895 &mut self,
11896 ranges_to_remove: Vec<Range<Anchor>>,
11897 cx: &mut ViewContext<Self>,
11898 ) {
11899 let snapshot = self.buffer().read(cx).snapshot(cx);
11900 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11901 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11902 row_highlights.retain(|highlight| {
11903 while let Some(range_to_remove) = ranges_to_remove.peek() {
11904 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11905 Ordering::Less | Ordering::Equal => {
11906 ranges_to_remove.next();
11907 }
11908 Ordering::Greater => {
11909 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11910 Ordering::Less | Ordering::Equal => {
11911 return false;
11912 }
11913 Ordering::Greater => break,
11914 }
11915 }
11916 }
11917 }
11918
11919 true
11920 })
11921 }
11922
11923 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11924 pub fn clear_row_highlights<T: 'static>(&mut self) {
11925 self.highlighted_rows.remove(&TypeId::of::<T>());
11926 }
11927
11928 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11929 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11930 self.highlighted_rows
11931 .get(&TypeId::of::<T>())
11932 .map_or(&[] as &[_], |vec| vec.as_slice())
11933 .iter()
11934 .map(|highlight| (highlight.range.clone(), highlight.color))
11935 }
11936
11937 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11938 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11939 /// Allows to ignore certain kinds of highlights.
11940 pub fn highlighted_display_rows(
11941 &mut self,
11942 cx: &mut WindowContext,
11943 ) -> BTreeMap<DisplayRow, Hsla> {
11944 let snapshot = self.snapshot(cx);
11945 let mut used_highlight_orders = HashMap::default();
11946 self.highlighted_rows
11947 .iter()
11948 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11949 .fold(
11950 BTreeMap::<DisplayRow, Hsla>::new(),
11951 |mut unique_rows, highlight| {
11952 let start = highlight.range.start.to_display_point(&snapshot);
11953 let end = highlight.range.end.to_display_point(&snapshot);
11954 let start_row = start.row().0;
11955 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11956 && end.column() == 0
11957 {
11958 end.row().0.saturating_sub(1)
11959 } else {
11960 end.row().0
11961 };
11962 for row in start_row..=end_row {
11963 let used_index =
11964 used_highlight_orders.entry(row).or_insert(highlight.index);
11965 if highlight.index >= *used_index {
11966 *used_index = highlight.index;
11967 unique_rows.insert(DisplayRow(row), highlight.color);
11968 }
11969 }
11970 unique_rows
11971 },
11972 )
11973 }
11974
11975 pub fn highlighted_display_row_for_autoscroll(
11976 &self,
11977 snapshot: &DisplaySnapshot,
11978 ) -> Option<DisplayRow> {
11979 self.highlighted_rows
11980 .values()
11981 .flat_map(|highlighted_rows| highlighted_rows.iter())
11982 .filter_map(|highlight| {
11983 if highlight.should_autoscroll {
11984 Some(highlight.range.start.to_display_point(snapshot).row())
11985 } else {
11986 None
11987 }
11988 })
11989 .min()
11990 }
11991
11992 pub fn set_search_within_ranges(
11993 &mut self,
11994 ranges: &[Range<Anchor>],
11995 cx: &mut ViewContext<Self>,
11996 ) {
11997 self.highlight_background::<SearchWithinRange>(
11998 ranges,
11999 |colors| colors.editor_document_highlight_read_background,
12000 cx,
12001 )
12002 }
12003
12004 pub fn set_breadcrumb_header(&mut self, new_header: String) {
12005 self.breadcrumb_header = Some(new_header);
12006 }
12007
12008 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
12009 self.clear_background_highlights::<SearchWithinRange>(cx);
12010 }
12011
12012 pub fn highlight_background<T: 'static>(
12013 &mut self,
12014 ranges: &[Range<Anchor>],
12015 color_fetcher: fn(&ThemeColors) -> Hsla,
12016 cx: &mut ViewContext<Self>,
12017 ) {
12018 self.background_highlights
12019 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12020 self.scrollbar_marker_state.dirty = true;
12021 cx.notify();
12022 }
12023
12024 pub fn clear_background_highlights<T: 'static>(
12025 &mut self,
12026 cx: &mut ViewContext<Self>,
12027 ) -> Option<BackgroundHighlight> {
12028 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
12029 if !text_highlights.1.is_empty() {
12030 self.scrollbar_marker_state.dirty = true;
12031 cx.notify();
12032 }
12033 Some(text_highlights)
12034 }
12035
12036 pub fn highlight_gutter<T: 'static>(
12037 &mut self,
12038 ranges: &[Range<Anchor>],
12039 color_fetcher: fn(&AppContext) -> Hsla,
12040 cx: &mut ViewContext<Self>,
12041 ) {
12042 self.gutter_highlights
12043 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12044 cx.notify();
12045 }
12046
12047 pub fn clear_gutter_highlights<T: 'static>(
12048 &mut self,
12049 cx: &mut ViewContext<Self>,
12050 ) -> Option<GutterHighlight> {
12051 cx.notify();
12052 self.gutter_highlights.remove(&TypeId::of::<T>())
12053 }
12054
12055 #[cfg(feature = "test-support")]
12056 pub fn all_text_background_highlights(
12057 &mut self,
12058 cx: &mut ViewContext<Self>,
12059 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12060 let snapshot = self.snapshot(cx);
12061 let buffer = &snapshot.buffer_snapshot;
12062 let start = buffer.anchor_before(0);
12063 let end = buffer.anchor_after(buffer.len());
12064 let theme = cx.theme().colors();
12065 self.background_highlights_in_range(start..end, &snapshot, theme)
12066 }
12067
12068 #[cfg(feature = "test-support")]
12069 pub fn search_background_highlights(
12070 &mut self,
12071 cx: &mut ViewContext<Self>,
12072 ) -> Vec<Range<Point>> {
12073 let snapshot = self.buffer().read(cx).snapshot(cx);
12074
12075 let highlights = self
12076 .background_highlights
12077 .get(&TypeId::of::<items::BufferSearchHighlights>());
12078
12079 if let Some((_color, ranges)) = highlights {
12080 ranges
12081 .iter()
12082 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
12083 .collect_vec()
12084 } else {
12085 vec![]
12086 }
12087 }
12088
12089 fn document_highlights_for_position<'a>(
12090 &'a self,
12091 position: Anchor,
12092 buffer: &'a MultiBufferSnapshot,
12093 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
12094 let read_highlights = self
12095 .background_highlights
12096 .get(&TypeId::of::<DocumentHighlightRead>())
12097 .map(|h| &h.1);
12098 let write_highlights = self
12099 .background_highlights
12100 .get(&TypeId::of::<DocumentHighlightWrite>())
12101 .map(|h| &h.1);
12102 let left_position = position.bias_left(buffer);
12103 let right_position = position.bias_right(buffer);
12104 read_highlights
12105 .into_iter()
12106 .chain(write_highlights)
12107 .flat_map(move |ranges| {
12108 let start_ix = match ranges.binary_search_by(|probe| {
12109 let cmp = probe.end.cmp(&left_position, buffer);
12110 if cmp.is_ge() {
12111 Ordering::Greater
12112 } else {
12113 Ordering::Less
12114 }
12115 }) {
12116 Ok(i) | Err(i) => i,
12117 };
12118
12119 ranges[start_ix..]
12120 .iter()
12121 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12122 })
12123 }
12124
12125 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12126 self.background_highlights
12127 .get(&TypeId::of::<T>())
12128 .map_or(false, |(_, highlights)| !highlights.is_empty())
12129 }
12130
12131 pub fn background_highlights_in_range(
12132 &self,
12133 search_range: Range<Anchor>,
12134 display_snapshot: &DisplaySnapshot,
12135 theme: &ThemeColors,
12136 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12137 let mut results = Vec::new();
12138 for (color_fetcher, ranges) in self.background_highlights.values() {
12139 let color = color_fetcher(theme);
12140 let start_ix = match ranges.binary_search_by(|probe| {
12141 let cmp = probe
12142 .end
12143 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12144 if cmp.is_gt() {
12145 Ordering::Greater
12146 } else {
12147 Ordering::Less
12148 }
12149 }) {
12150 Ok(i) | Err(i) => i,
12151 };
12152 for range in &ranges[start_ix..] {
12153 if range
12154 .start
12155 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12156 .is_ge()
12157 {
12158 break;
12159 }
12160
12161 let start = range.start.to_display_point(display_snapshot);
12162 let end = range.end.to_display_point(display_snapshot);
12163 results.push((start..end, color))
12164 }
12165 }
12166 results
12167 }
12168
12169 pub fn background_highlight_row_ranges<T: 'static>(
12170 &self,
12171 search_range: Range<Anchor>,
12172 display_snapshot: &DisplaySnapshot,
12173 count: usize,
12174 ) -> Vec<RangeInclusive<DisplayPoint>> {
12175 let mut results = Vec::new();
12176 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12177 return vec![];
12178 };
12179
12180 let start_ix = match ranges.binary_search_by(|probe| {
12181 let cmp = probe
12182 .end
12183 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12184 if cmp.is_gt() {
12185 Ordering::Greater
12186 } else {
12187 Ordering::Less
12188 }
12189 }) {
12190 Ok(i) | Err(i) => i,
12191 };
12192 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12193 if let (Some(start_display), Some(end_display)) = (start, end) {
12194 results.push(
12195 start_display.to_display_point(display_snapshot)
12196 ..=end_display.to_display_point(display_snapshot),
12197 );
12198 }
12199 };
12200 let mut start_row: Option<Point> = None;
12201 let mut end_row: Option<Point> = None;
12202 if ranges.len() > count {
12203 return Vec::new();
12204 }
12205 for range in &ranges[start_ix..] {
12206 if range
12207 .start
12208 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12209 .is_ge()
12210 {
12211 break;
12212 }
12213 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12214 if let Some(current_row) = &end_row {
12215 if end.row == current_row.row {
12216 continue;
12217 }
12218 }
12219 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12220 if start_row.is_none() {
12221 assert_eq!(end_row, None);
12222 start_row = Some(start);
12223 end_row = Some(end);
12224 continue;
12225 }
12226 if let Some(current_end) = end_row.as_mut() {
12227 if start.row > current_end.row + 1 {
12228 push_region(start_row, end_row);
12229 start_row = Some(start);
12230 end_row = Some(end);
12231 } else {
12232 // Merge two hunks.
12233 *current_end = end;
12234 }
12235 } else {
12236 unreachable!();
12237 }
12238 }
12239 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12240 push_region(start_row, end_row);
12241 results
12242 }
12243
12244 pub fn gutter_highlights_in_range(
12245 &self,
12246 search_range: Range<Anchor>,
12247 display_snapshot: &DisplaySnapshot,
12248 cx: &AppContext,
12249 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12250 let mut results = Vec::new();
12251 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12252 let color = color_fetcher(cx);
12253 let start_ix = match ranges.binary_search_by(|probe| {
12254 let cmp = probe
12255 .end
12256 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12257 if cmp.is_gt() {
12258 Ordering::Greater
12259 } else {
12260 Ordering::Less
12261 }
12262 }) {
12263 Ok(i) | Err(i) => i,
12264 };
12265 for range in &ranges[start_ix..] {
12266 if range
12267 .start
12268 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12269 .is_ge()
12270 {
12271 break;
12272 }
12273
12274 let start = range.start.to_display_point(display_snapshot);
12275 let end = range.end.to_display_point(display_snapshot);
12276 results.push((start..end, color))
12277 }
12278 }
12279 results
12280 }
12281
12282 /// Get the text ranges corresponding to the redaction query
12283 pub fn redacted_ranges(
12284 &self,
12285 search_range: Range<Anchor>,
12286 display_snapshot: &DisplaySnapshot,
12287 cx: &WindowContext,
12288 ) -> Vec<Range<DisplayPoint>> {
12289 display_snapshot
12290 .buffer_snapshot
12291 .redacted_ranges(search_range, |file| {
12292 if let Some(file) = file {
12293 file.is_private()
12294 && EditorSettings::get(
12295 Some(SettingsLocation {
12296 worktree_id: file.worktree_id(cx),
12297 path: file.path().as_ref(),
12298 }),
12299 cx,
12300 )
12301 .redact_private_values
12302 } else {
12303 false
12304 }
12305 })
12306 .map(|range| {
12307 range.start.to_display_point(display_snapshot)
12308 ..range.end.to_display_point(display_snapshot)
12309 })
12310 .collect()
12311 }
12312
12313 pub fn highlight_text<T: 'static>(
12314 &mut self,
12315 ranges: Vec<Range<Anchor>>,
12316 style: HighlightStyle,
12317 cx: &mut ViewContext<Self>,
12318 ) {
12319 self.display_map.update(cx, |map, _| {
12320 map.highlight_text(TypeId::of::<T>(), ranges, style)
12321 });
12322 cx.notify();
12323 }
12324
12325 pub(crate) fn highlight_inlays<T: 'static>(
12326 &mut self,
12327 highlights: Vec<InlayHighlight>,
12328 style: HighlightStyle,
12329 cx: &mut ViewContext<Self>,
12330 ) {
12331 self.display_map.update(cx, |map, _| {
12332 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12333 });
12334 cx.notify();
12335 }
12336
12337 pub fn text_highlights<'a, T: 'static>(
12338 &'a self,
12339 cx: &'a AppContext,
12340 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12341 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12342 }
12343
12344 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12345 let cleared = self
12346 .display_map
12347 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12348 if cleared {
12349 cx.notify();
12350 }
12351 }
12352
12353 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12354 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12355 && self.focus_handle.is_focused(cx)
12356 }
12357
12358 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12359 self.show_cursor_when_unfocused = is_enabled;
12360 cx.notify();
12361 }
12362
12363 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12364 cx.notify();
12365 }
12366
12367 fn on_buffer_event(
12368 &mut self,
12369 multibuffer: Model<MultiBuffer>,
12370 event: &multi_buffer::Event,
12371 cx: &mut ViewContext<Self>,
12372 ) {
12373 match event {
12374 multi_buffer::Event::Edited {
12375 singleton_buffer_edited,
12376 } => {
12377 self.scrollbar_marker_state.dirty = true;
12378 self.active_indent_guides_state.dirty = true;
12379 self.refresh_active_diagnostics(cx);
12380 self.refresh_code_actions(cx);
12381 if self.has_active_inline_completion(cx) {
12382 self.update_visible_inline_completion(cx);
12383 }
12384 cx.emit(EditorEvent::BufferEdited);
12385 cx.emit(SearchEvent::MatchesInvalidated);
12386 if *singleton_buffer_edited {
12387 if let Some(project) = &self.project {
12388 let project = project.read(cx);
12389 #[allow(clippy::mutable_key_type)]
12390 let languages_affected = multibuffer
12391 .read(cx)
12392 .all_buffers()
12393 .into_iter()
12394 .filter_map(|buffer| {
12395 let buffer = buffer.read(cx);
12396 let language = buffer.language()?;
12397 if project.is_local()
12398 && project.language_servers_for_buffer(buffer, cx).count() == 0
12399 {
12400 None
12401 } else {
12402 Some(language)
12403 }
12404 })
12405 .cloned()
12406 .collect::<HashSet<_>>();
12407 if !languages_affected.is_empty() {
12408 self.refresh_inlay_hints(
12409 InlayHintRefreshReason::BufferEdited(languages_affected),
12410 cx,
12411 );
12412 }
12413 }
12414 }
12415
12416 let Some(project) = &self.project else { return };
12417 let (telemetry, is_via_ssh) = {
12418 let project = project.read(cx);
12419 let telemetry = project.client().telemetry().clone();
12420 let is_via_ssh = project.is_via_ssh();
12421 (telemetry, is_via_ssh)
12422 };
12423 refresh_linked_ranges(self, cx);
12424 telemetry.log_edit_event("editor", is_via_ssh);
12425 }
12426 multi_buffer::Event::ExcerptsAdded {
12427 buffer,
12428 predecessor,
12429 excerpts,
12430 } => {
12431 self.tasks_update_task = Some(self.refresh_runnables(cx));
12432 cx.emit(EditorEvent::ExcerptsAdded {
12433 buffer: buffer.clone(),
12434 predecessor: *predecessor,
12435 excerpts: excerpts.clone(),
12436 });
12437 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12438 }
12439 multi_buffer::Event::ExcerptsRemoved { ids } => {
12440 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12441 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12442 }
12443 multi_buffer::Event::ExcerptsEdited { ids } => {
12444 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12445 }
12446 multi_buffer::Event::ExcerptsExpanded { ids } => {
12447 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12448 }
12449 multi_buffer::Event::Reparsed(buffer_id) => {
12450 self.tasks_update_task = Some(self.refresh_runnables(cx));
12451
12452 cx.emit(EditorEvent::Reparsed(*buffer_id));
12453 }
12454 multi_buffer::Event::LanguageChanged(buffer_id) => {
12455 linked_editing_ranges::refresh_linked_ranges(self, cx);
12456 cx.emit(EditorEvent::Reparsed(*buffer_id));
12457 cx.notify();
12458 }
12459 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12460 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12461 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12462 cx.emit(EditorEvent::TitleChanged)
12463 }
12464 multi_buffer::Event::DiffBaseChanged => {
12465 self.scrollbar_marker_state.dirty = true;
12466 cx.emit(EditorEvent::DiffBaseChanged);
12467 cx.notify();
12468 }
12469 multi_buffer::Event::DiffUpdated { buffer } => {
12470 self.sync_expanded_diff_hunks(buffer.clone(), cx);
12471 cx.notify();
12472 }
12473 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12474 multi_buffer::Event::DiagnosticsUpdated => {
12475 self.refresh_active_diagnostics(cx);
12476 self.scrollbar_marker_state.dirty = true;
12477 cx.notify();
12478 }
12479 _ => {}
12480 };
12481 }
12482
12483 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12484 cx.notify();
12485 }
12486
12487 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12488 self.tasks_update_task = Some(self.refresh_runnables(cx));
12489 self.refresh_inline_completion(true, false, cx);
12490 self.refresh_inlay_hints(
12491 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12492 self.selections.newest_anchor().head(),
12493 &self.buffer.read(cx).snapshot(cx),
12494 cx,
12495 )),
12496 cx,
12497 );
12498
12499 let old_cursor_shape = self.cursor_shape;
12500
12501 {
12502 let editor_settings = EditorSettings::get_global(cx);
12503 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12504 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12505 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12506 }
12507
12508 if old_cursor_shape != self.cursor_shape {
12509 cx.emit(EditorEvent::CursorShapeChanged);
12510 }
12511
12512 let project_settings = ProjectSettings::get_global(cx);
12513 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12514
12515 if self.mode == EditorMode::Full {
12516 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12517 if self.git_blame_inline_enabled != inline_blame_enabled {
12518 self.toggle_git_blame_inline_internal(false, cx);
12519 }
12520 }
12521
12522 cx.notify();
12523 }
12524
12525 pub fn set_searchable(&mut self, searchable: bool) {
12526 self.searchable = searchable;
12527 }
12528
12529 pub fn searchable(&self) -> bool {
12530 self.searchable
12531 }
12532
12533 fn open_proposed_changes_editor(
12534 &mut self,
12535 _: &OpenProposedChangesEditor,
12536 cx: &mut ViewContext<Self>,
12537 ) {
12538 let Some(workspace) = self.workspace() else {
12539 cx.propagate();
12540 return;
12541 };
12542
12543 let selections = self.selections.all::<usize>(cx);
12544 let buffer = self.buffer.read(cx);
12545 let mut new_selections_by_buffer = HashMap::default();
12546 for selection in selections {
12547 for (buffer, range, _) in
12548 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12549 {
12550 let mut range = range.to_point(buffer.read(cx));
12551 range.start.column = 0;
12552 range.end.column = buffer.read(cx).line_len(range.end.row);
12553 new_selections_by_buffer
12554 .entry(buffer)
12555 .or_insert(Vec::new())
12556 .push(range)
12557 }
12558 }
12559
12560 let proposed_changes_buffers = new_selections_by_buffer
12561 .into_iter()
12562 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12563 .collect::<Vec<_>>();
12564 let proposed_changes_editor = cx.new_view(|cx| {
12565 ProposedChangesEditor::new(
12566 "Proposed changes",
12567 proposed_changes_buffers,
12568 self.project.clone(),
12569 cx,
12570 )
12571 });
12572
12573 cx.window_context().defer(move |cx| {
12574 workspace.update(cx, |workspace, cx| {
12575 workspace.active_pane().update(cx, |pane, cx| {
12576 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12577 });
12578 });
12579 });
12580 }
12581
12582 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12583 self.open_excerpts_common(true, cx)
12584 }
12585
12586 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12587 self.open_excerpts_common(false, cx)
12588 }
12589
12590 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
12591 let selections = self.selections.all::<usize>(cx);
12592 let buffer = self.buffer.read(cx);
12593 if buffer.is_singleton() {
12594 cx.propagate();
12595 return;
12596 }
12597
12598 let Some(workspace) = self.workspace() else {
12599 cx.propagate();
12600 return;
12601 };
12602
12603 let mut new_selections_by_buffer = HashMap::default();
12604 for selection in selections {
12605 for (mut buffer_handle, mut range, _) in
12606 buffer.range_to_buffer_ranges(selection.range(), cx)
12607 {
12608 // When editing branch buffers, jump to the corresponding location
12609 // in their base buffer.
12610 let buffer = buffer_handle.read(cx);
12611 if let Some(base_buffer) = buffer.diff_base_buffer() {
12612 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12613 buffer_handle = base_buffer;
12614 }
12615
12616 if selection.reversed {
12617 mem::swap(&mut range.start, &mut range.end);
12618 }
12619 new_selections_by_buffer
12620 .entry(buffer_handle)
12621 .or_insert(Vec::new())
12622 .push(range)
12623 }
12624 }
12625
12626 // We defer the pane interaction because we ourselves are a workspace item
12627 // and activating a new item causes the pane to call a method on us reentrantly,
12628 // which panics if we're on the stack.
12629 cx.window_context().defer(move |cx| {
12630 workspace.update(cx, |workspace, cx| {
12631 let pane = if split {
12632 workspace.adjacent_pane(cx)
12633 } else {
12634 workspace.active_pane().clone()
12635 };
12636
12637 for (buffer, ranges) in new_selections_by_buffer {
12638 let editor =
12639 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
12640 editor.update(cx, |editor, cx| {
12641 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
12642 s.select_ranges(ranges);
12643 });
12644 });
12645 }
12646 })
12647 });
12648 }
12649
12650 fn jump(
12651 &mut self,
12652 path: ProjectPath,
12653 position: Point,
12654 anchor: language::Anchor,
12655 offset_from_top: u32,
12656 cx: &mut ViewContext<Self>,
12657 ) {
12658 let workspace = self.workspace();
12659 cx.spawn(|_, mut cx| async move {
12660 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
12661 let editor = workspace.update(&mut cx, |workspace, cx| {
12662 // Reset the preview item id before opening the new item
12663 workspace.active_pane().update(cx, |pane, cx| {
12664 pane.set_preview_item_id(None, cx);
12665 });
12666 workspace.open_path_preview(path, None, true, true, cx)
12667 })?;
12668 let editor = editor
12669 .await?
12670 .downcast::<Editor>()
12671 .ok_or_else(|| anyhow!("opened item was not an editor"))?
12672 .downgrade();
12673 editor.update(&mut cx, |editor, cx| {
12674 let buffer = editor
12675 .buffer()
12676 .read(cx)
12677 .as_singleton()
12678 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
12679 let buffer = buffer.read(cx);
12680 let cursor = if buffer.can_resolve(&anchor) {
12681 language::ToPoint::to_point(&anchor, buffer)
12682 } else {
12683 buffer.clip_point(position, Bias::Left)
12684 };
12685
12686 let nav_history = editor.nav_history.take();
12687 editor.change_selections(
12688 Some(Autoscroll::top_relative(offset_from_top as usize)),
12689 cx,
12690 |s| {
12691 s.select_ranges([cursor..cursor]);
12692 },
12693 );
12694 editor.nav_history = nav_history;
12695
12696 anyhow::Ok(())
12697 })??;
12698
12699 anyhow::Ok(())
12700 })
12701 .detach_and_log_err(cx);
12702 }
12703
12704 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12705 let snapshot = self.buffer.read(cx).read(cx);
12706 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12707 Some(
12708 ranges
12709 .iter()
12710 .map(move |range| {
12711 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12712 })
12713 .collect(),
12714 )
12715 }
12716
12717 fn selection_replacement_ranges(
12718 &self,
12719 range: Range<OffsetUtf16>,
12720 cx: &mut AppContext,
12721 ) -> Vec<Range<OffsetUtf16>> {
12722 let selections = self.selections.all::<OffsetUtf16>(cx);
12723 let newest_selection = selections
12724 .iter()
12725 .max_by_key(|selection| selection.id)
12726 .unwrap();
12727 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12728 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12729 let snapshot = self.buffer.read(cx).read(cx);
12730 selections
12731 .into_iter()
12732 .map(|mut selection| {
12733 selection.start.0 =
12734 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12735 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12736 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12737 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12738 })
12739 .collect()
12740 }
12741
12742 fn report_editor_event(
12743 &self,
12744 operation: &'static str,
12745 file_extension: Option<String>,
12746 cx: &AppContext,
12747 ) {
12748 if cfg!(any(test, feature = "test-support")) {
12749 return;
12750 }
12751
12752 let Some(project) = &self.project else { return };
12753
12754 // If None, we are in a file without an extension
12755 let file = self
12756 .buffer
12757 .read(cx)
12758 .as_singleton()
12759 .and_then(|b| b.read(cx).file());
12760 let file_extension = file_extension.or(file
12761 .as_ref()
12762 .and_then(|file| Path::new(file.file_name(cx)).extension())
12763 .and_then(|e| e.to_str())
12764 .map(|a| a.to_string()));
12765
12766 let vim_mode = cx
12767 .global::<SettingsStore>()
12768 .raw_user_settings()
12769 .get("vim_mode")
12770 == Some(&serde_json::Value::Bool(true));
12771
12772 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12773 == language::language_settings::InlineCompletionProvider::Copilot;
12774 let copilot_enabled_for_language = self
12775 .buffer
12776 .read(cx)
12777 .settings_at(0, cx)
12778 .show_inline_completions;
12779
12780 let project = project.read(cx);
12781 let telemetry = project.client().telemetry().clone();
12782 telemetry.report_editor_event(
12783 file_extension,
12784 vim_mode,
12785 operation,
12786 copilot_enabled,
12787 copilot_enabled_for_language,
12788 project.is_via_ssh(),
12789 )
12790 }
12791
12792 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12793 /// with each line being an array of {text, highlight} objects.
12794 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12795 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12796 return;
12797 };
12798
12799 #[derive(Serialize)]
12800 struct Chunk<'a> {
12801 text: String,
12802 highlight: Option<&'a str>,
12803 }
12804
12805 let snapshot = buffer.read(cx).snapshot();
12806 let range = self
12807 .selected_text_range(false, cx)
12808 .and_then(|selection| {
12809 if selection.range.is_empty() {
12810 None
12811 } else {
12812 Some(selection.range)
12813 }
12814 })
12815 .unwrap_or_else(|| 0..snapshot.len());
12816
12817 let chunks = snapshot.chunks(range, true);
12818 let mut lines = Vec::new();
12819 let mut line: VecDeque<Chunk> = VecDeque::new();
12820
12821 let Some(style) = self.style.as_ref() else {
12822 return;
12823 };
12824
12825 for chunk in chunks {
12826 let highlight = chunk
12827 .syntax_highlight_id
12828 .and_then(|id| id.name(&style.syntax));
12829 let mut chunk_lines = chunk.text.split('\n').peekable();
12830 while let Some(text) = chunk_lines.next() {
12831 let mut merged_with_last_token = false;
12832 if let Some(last_token) = line.back_mut() {
12833 if last_token.highlight == highlight {
12834 last_token.text.push_str(text);
12835 merged_with_last_token = true;
12836 }
12837 }
12838
12839 if !merged_with_last_token {
12840 line.push_back(Chunk {
12841 text: text.into(),
12842 highlight,
12843 });
12844 }
12845
12846 if chunk_lines.peek().is_some() {
12847 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12848 line.pop_front();
12849 }
12850 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12851 line.pop_back();
12852 }
12853
12854 lines.push(mem::take(&mut line));
12855 }
12856 }
12857 }
12858
12859 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12860 return;
12861 };
12862 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12863 }
12864
12865 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12866 &self.inlay_hint_cache
12867 }
12868
12869 pub fn replay_insert_event(
12870 &mut self,
12871 text: &str,
12872 relative_utf16_range: Option<Range<isize>>,
12873 cx: &mut ViewContext<Self>,
12874 ) {
12875 if !self.input_enabled {
12876 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12877 return;
12878 }
12879 if let Some(relative_utf16_range) = relative_utf16_range {
12880 let selections = self.selections.all::<OffsetUtf16>(cx);
12881 self.change_selections(None, cx, |s| {
12882 let new_ranges = selections.into_iter().map(|range| {
12883 let start = OffsetUtf16(
12884 range
12885 .head()
12886 .0
12887 .saturating_add_signed(relative_utf16_range.start),
12888 );
12889 let end = OffsetUtf16(
12890 range
12891 .head()
12892 .0
12893 .saturating_add_signed(relative_utf16_range.end),
12894 );
12895 start..end
12896 });
12897 s.select_ranges(new_ranges);
12898 });
12899 }
12900
12901 self.handle_input(text, cx);
12902 }
12903
12904 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12905 let Some(provider) = self.semantics_provider.as_ref() else {
12906 return false;
12907 };
12908
12909 let mut supports = false;
12910 self.buffer().read(cx).for_each_buffer(|buffer| {
12911 supports |= provider.supports_inlay_hints(buffer, cx);
12912 });
12913 supports
12914 }
12915
12916 pub fn focus(&self, cx: &mut WindowContext) {
12917 cx.focus(&self.focus_handle)
12918 }
12919
12920 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12921 self.focus_handle.is_focused(cx)
12922 }
12923
12924 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12925 cx.emit(EditorEvent::Focused);
12926
12927 if let Some(descendant) = self
12928 .last_focused_descendant
12929 .take()
12930 .and_then(|descendant| descendant.upgrade())
12931 {
12932 cx.focus(&descendant);
12933 } else {
12934 if let Some(blame) = self.blame.as_ref() {
12935 blame.update(cx, GitBlame::focus)
12936 }
12937
12938 self.blink_manager.update(cx, BlinkManager::enable);
12939 self.show_cursor_names(cx);
12940 self.buffer.update(cx, |buffer, cx| {
12941 buffer.finalize_last_transaction(cx);
12942 if self.leader_peer_id.is_none() {
12943 buffer.set_active_selections(
12944 &self.selections.disjoint_anchors(),
12945 self.selections.line_mode,
12946 self.cursor_shape,
12947 cx,
12948 );
12949 }
12950 });
12951 }
12952 }
12953
12954 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12955 cx.emit(EditorEvent::FocusedIn)
12956 }
12957
12958 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12959 if event.blurred != self.focus_handle {
12960 self.last_focused_descendant = Some(event.blurred);
12961 }
12962 }
12963
12964 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12965 self.blink_manager.update(cx, BlinkManager::disable);
12966 self.buffer
12967 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12968
12969 if let Some(blame) = self.blame.as_ref() {
12970 blame.update(cx, GitBlame::blur)
12971 }
12972 if !self.hover_state.focused(cx) {
12973 hide_hover(self, cx);
12974 }
12975
12976 self.hide_context_menu(cx);
12977 cx.emit(EditorEvent::Blurred);
12978 cx.notify();
12979 }
12980
12981 pub fn register_action<A: Action>(
12982 &mut self,
12983 listener: impl Fn(&A, &mut WindowContext) + 'static,
12984 ) -> Subscription {
12985 let id = self.next_editor_action_id.post_inc();
12986 let listener = Arc::new(listener);
12987 self.editor_actions.borrow_mut().insert(
12988 id,
12989 Box::new(move |cx| {
12990 let cx = cx.window_context();
12991 let listener = listener.clone();
12992 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12993 let action = action.downcast_ref().unwrap();
12994 if phase == DispatchPhase::Bubble {
12995 listener(action, cx)
12996 }
12997 })
12998 }),
12999 );
13000
13001 let editor_actions = self.editor_actions.clone();
13002 Subscription::new(move || {
13003 editor_actions.borrow_mut().remove(&id);
13004 })
13005 }
13006
13007 pub fn file_header_size(&self) -> u32 {
13008 FILE_HEADER_HEIGHT
13009 }
13010
13011 pub fn revert(
13012 &mut self,
13013 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
13014 cx: &mut ViewContext<Self>,
13015 ) {
13016 self.buffer().update(cx, |multi_buffer, cx| {
13017 for (buffer_id, changes) in revert_changes {
13018 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
13019 buffer.update(cx, |buffer, cx| {
13020 buffer.edit(
13021 changes.into_iter().map(|(range, text)| {
13022 (range, text.to_string().map(Arc::<str>::from))
13023 }),
13024 None,
13025 cx,
13026 );
13027 });
13028 }
13029 }
13030 });
13031 self.change_selections(None, cx, |selections| selections.refresh());
13032 }
13033
13034 pub fn to_pixel_point(
13035 &mut self,
13036 source: multi_buffer::Anchor,
13037 editor_snapshot: &EditorSnapshot,
13038 cx: &mut ViewContext<Self>,
13039 ) -> Option<gpui::Point<Pixels>> {
13040 let source_point = source.to_display_point(editor_snapshot);
13041 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13042 }
13043
13044 pub fn display_to_pixel_point(
13045 &mut self,
13046 source: DisplayPoint,
13047 editor_snapshot: &EditorSnapshot,
13048 cx: &mut ViewContext<Self>,
13049 ) -> Option<gpui::Point<Pixels>> {
13050 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13051 let text_layout_details = self.text_layout_details(cx);
13052 let scroll_top = text_layout_details
13053 .scroll_anchor
13054 .scroll_position(editor_snapshot)
13055 .y;
13056
13057 if source.row().as_f32() < scroll_top.floor() {
13058 return None;
13059 }
13060 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13061 let source_y = line_height * (source.row().as_f32() - scroll_top);
13062 Some(gpui::Point::new(source_x, source_y))
13063 }
13064
13065 pub fn has_active_completions_menu(&self) -> bool {
13066 self.context_menu.read().as_ref().map_or(false, |menu| {
13067 menu.visible() && matches!(menu, ContextMenu::Completions(_))
13068 })
13069 }
13070
13071 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13072 self.addons
13073 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13074 }
13075
13076 pub fn unregister_addon<T: Addon>(&mut self) {
13077 self.addons.remove(&std::any::TypeId::of::<T>());
13078 }
13079
13080 pub fn addon<T: Addon>(&self) -> Option<&T> {
13081 let type_id = std::any::TypeId::of::<T>();
13082 self.addons
13083 .get(&type_id)
13084 .and_then(|item| item.to_any().downcast_ref::<T>())
13085 }
13086}
13087
13088fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13089 let tab_size = tab_size.get() as usize;
13090 let mut width = offset;
13091
13092 for ch in text.chars() {
13093 width += if ch == '\t' {
13094 tab_size - (width % tab_size)
13095 } else {
13096 1
13097 };
13098 }
13099
13100 width - offset
13101}
13102
13103#[cfg(test)]
13104mod tests {
13105 use super::*;
13106
13107 #[test]
13108 fn test_string_size_with_expanded_tabs() {
13109 let nz = |val| NonZeroU32::new(val).unwrap();
13110 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13111 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13112 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13113 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13114 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13115 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13116 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13117 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13118 }
13119}
13120
13121/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13122struct WordBreakingTokenizer<'a> {
13123 input: &'a str,
13124}
13125
13126impl<'a> WordBreakingTokenizer<'a> {
13127 fn new(input: &'a str) -> Self {
13128 Self { input }
13129 }
13130}
13131
13132fn is_char_ideographic(ch: char) -> bool {
13133 use unicode_script::Script::*;
13134 use unicode_script::UnicodeScript;
13135 matches!(ch.script(), Han | Tangut | Yi)
13136}
13137
13138fn is_grapheme_ideographic(text: &str) -> bool {
13139 text.chars().any(is_char_ideographic)
13140}
13141
13142fn is_grapheme_whitespace(text: &str) -> bool {
13143 text.chars().any(|x| x.is_whitespace())
13144}
13145
13146fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13147 text.chars().next().map_or(false, |ch| {
13148 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13149 })
13150}
13151
13152#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13153struct WordBreakToken<'a> {
13154 token: &'a str,
13155 grapheme_len: usize,
13156 is_whitespace: bool,
13157}
13158
13159impl<'a> Iterator for WordBreakingTokenizer<'a> {
13160 /// Yields a span, the count of graphemes in the token, and whether it was
13161 /// whitespace. Note that it also breaks at word boundaries.
13162 type Item = WordBreakToken<'a>;
13163
13164 fn next(&mut self) -> Option<Self::Item> {
13165 use unicode_segmentation::UnicodeSegmentation;
13166 if self.input.is_empty() {
13167 return None;
13168 }
13169
13170 let mut iter = self.input.graphemes(true).peekable();
13171 let mut offset = 0;
13172 let mut graphemes = 0;
13173 if let Some(first_grapheme) = iter.next() {
13174 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13175 offset += first_grapheme.len();
13176 graphemes += 1;
13177 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13178 if let Some(grapheme) = iter.peek().copied() {
13179 if should_stay_with_preceding_ideograph(grapheme) {
13180 offset += grapheme.len();
13181 graphemes += 1;
13182 }
13183 }
13184 } else {
13185 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13186 let mut next_word_bound = words.peek().copied();
13187 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13188 next_word_bound = words.next();
13189 }
13190 while let Some(grapheme) = iter.peek().copied() {
13191 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13192 break;
13193 };
13194 if is_grapheme_whitespace(grapheme) != is_whitespace {
13195 break;
13196 };
13197 offset += grapheme.len();
13198 graphemes += 1;
13199 iter.next();
13200 }
13201 }
13202 let token = &self.input[..offset];
13203 self.input = &self.input[offset..];
13204 if is_whitespace {
13205 Some(WordBreakToken {
13206 token: " ",
13207 grapheme_len: 1,
13208 is_whitespace: true,
13209 })
13210 } else {
13211 Some(WordBreakToken {
13212 token,
13213 grapheme_len: graphemes,
13214 is_whitespace: false,
13215 })
13216 }
13217 } else {
13218 None
13219 }
13220 }
13221}
13222
13223#[test]
13224fn test_word_breaking_tokenizer() {
13225 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13226 ("", &[]),
13227 (" ", &[(" ", 1, true)]),
13228 ("Ʒ", &[("Ʒ", 1, false)]),
13229 ("Ǽ", &[("Ǽ", 1, false)]),
13230 ("⋑", &[("⋑", 1, false)]),
13231 ("⋑⋑", &[("⋑⋑", 2, false)]),
13232 (
13233 "原理，进而",
13234 &[
13235 ("原", 1, false),
13236 ("理，", 2, false),
13237 ("进", 1, false),
13238 ("而", 1, false),
13239 ],
13240 ),
13241 (
13242 "hello world",
13243 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13244 ),
13245 (
13246 "hello, world",
13247 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13248 ),
13249 (
13250 " hello world",
13251 &[
13252 (" ", 1, true),
13253 ("hello", 5, false),
13254 (" ", 1, true),
13255 ("world", 5, false),
13256 ],
13257 ),
13258 (
13259 "这是什么 \n 钢笔",
13260 &[
13261 ("这", 1, false),
13262 ("是", 1, false),
13263 ("什", 1, false),
13264 ("么", 1, false),
13265 (" ", 1, true),
13266 ("钢", 1, false),
13267 ("笔", 1, false),
13268 ],
13269 ),
13270 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13271 ];
13272
13273 for (input, result) in tests {
13274 assert_eq!(
13275 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13276 result
13277 .iter()
13278 .copied()
13279 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13280 token,
13281 grapheme_len,
13282 is_whitespace,
13283 })
13284 .collect::<Vec<_>>()
13285 );
13286 }
13287}
13288
13289fn wrap_with_prefix(
13290 line_prefix: String,
13291 unwrapped_text: String,
13292 wrap_column: usize,
13293 tab_size: NonZeroU32,
13294) -> String {
13295 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13296 let mut wrapped_text = String::new();
13297 let mut current_line = line_prefix.clone();
13298
13299 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13300 let mut current_line_len = line_prefix_len;
13301 for WordBreakToken {
13302 token,
13303 grapheme_len,
13304 is_whitespace,
13305 } in tokenizer
13306 {
13307 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13308 wrapped_text.push_str(current_line.trim_end());
13309 wrapped_text.push('\n');
13310 current_line.truncate(line_prefix.len());
13311 current_line_len = line_prefix_len;
13312 if !is_whitespace {
13313 current_line.push_str(token);
13314 current_line_len += grapheme_len;
13315 }
13316 } else if !is_whitespace {
13317 current_line.push_str(token);
13318 current_line_len += grapheme_len;
13319 } else if current_line_len != line_prefix_len {
13320 current_line.push(' ');
13321 current_line_len += 1;
13322 }
13323 }
13324
13325 if !current_line.is_empty() {
13326 wrapped_text.push_str(¤t_line);
13327 }
13328 wrapped_text
13329}
13330
13331#[test]
13332fn test_wrap_with_prefix() {
13333 assert_eq!(
13334 wrap_with_prefix(
13335 "# ".to_string(),
13336 "abcdefg".to_string(),
13337 4,
13338 NonZeroU32::new(4).unwrap()
13339 ),
13340 "# abcdefg"
13341 );
13342 assert_eq!(
13343 wrap_with_prefix(
13344 "".to_string(),
13345 "\thello world".to_string(),
13346 8,
13347 NonZeroU32::new(4).unwrap()
13348 ),
13349 "hello\nworld"
13350 );
13351 assert_eq!(
13352 wrap_with_prefix(
13353 "// ".to_string(),
13354 "xx \nyy zz aa bb cc".to_string(),
13355 12,
13356 NonZeroU32::new(4).unwrap()
13357 ),
13358 "// xx yy zz\n// aa bb cc"
13359 );
13360 assert_eq!(
13361 wrap_with_prefix(
13362 String::new(),
13363 "这是什么 \n 钢笔".to_string(),
13364 3,
13365 NonZeroU32::new(4).unwrap()
13366 ),
13367 "这是什\n么 钢\n笔"
13368 );
13369}
13370
13371fn hunks_for_selections(
13372 multi_buffer_snapshot: &MultiBufferSnapshot,
13373 selections: &[Selection<Anchor>],
13374) -> Vec<MultiBufferDiffHunk> {
13375 let buffer_rows_for_selections = selections.iter().map(|selection| {
13376 let head = selection.head();
13377 let tail = selection.tail();
13378 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
13379 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
13380 if start > end {
13381 end..start
13382 } else {
13383 start..end
13384 }
13385 });
13386
13387 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
13388}
13389
13390pub fn hunks_for_rows(
13391 rows: impl Iterator<Item = Range<MultiBufferRow>>,
13392 multi_buffer_snapshot: &MultiBufferSnapshot,
13393) -> Vec<MultiBufferDiffHunk> {
13394 let mut hunks = Vec::new();
13395 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13396 HashMap::default();
13397 for selected_multi_buffer_rows in rows {
13398 let query_rows =
13399 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
13400 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
13401 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13402 // when the caret is just above or just below the deleted hunk.
13403 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13404 let related_to_selection = if allow_adjacent {
13405 hunk.row_range.overlaps(&query_rows)
13406 || hunk.row_range.start == query_rows.end
13407 || hunk.row_range.end == query_rows.start
13408 } else {
13409 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
13410 // `hunk.row_range` is exclusive (e.g. [2..3] means 2nd row is selected)
13411 hunk.row_range.overlaps(&selected_multi_buffer_rows)
13412 || selected_multi_buffer_rows.end == hunk.row_range.start
13413 };
13414 if related_to_selection {
13415 if !processed_buffer_rows
13416 .entry(hunk.buffer_id)
13417 .or_default()
13418 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13419 {
13420 continue;
13421 }
13422 hunks.push(hunk);
13423 }
13424 }
13425 }
13426
13427 hunks
13428}
13429
13430pub trait CollaborationHub {
13431 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13432 fn user_participant_indices<'a>(
13433 &self,
13434 cx: &'a AppContext,
13435 ) -> &'a HashMap<u64, ParticipantIndex>;
13436 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13437}
13438
13439impl CollaborationHub for Model<Project> {
13440 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13441 self.read(cx).collaborators()
13442 }
13443
13444 fn user_participant_indices<'a>(
13445 &self,
13446 cx: &'a AppContext,
13447 ) -> &'a HashMap<u64, ParticipantIndex> {
13448 self.read(cx).user_store().read(cx).participant_indices()
13449 }
13450
13451 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13452 let this = self.read(cx);
13453 let user_ids = this.collaborators().values().map(|c| c.user_id);
13454 this.user_store().read_with(cx, |user_store, cx| {
13455 user_store.participant_names(user_ids, cx)
13456 })
13457 }
13458}
13459
13460pub trait SemanticsProvider {
13461 fn hover(
13462 &self,
13463 buffer: &Model<Buffer>,
13464 position: text::Anchor,
13465 cx: &mut AppContext,
13466 ) -> Option<Task<Vec<project::Hover>>>;
13467
13468 fn inlay_hints(
13469 &self,
13470 buffer_handle: Model<Buffer>,
13471 range: Range<text::Anchor>,
13472 cx: &mut AppContext,
13473 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13474
13475 fn resolve_inlay_hint(
13476 &self,
13477 hint: InlayHint,
13478 buffer_handle: Model<Buffer>,
13479 server_id: LanguageServerId,
13480 cx: &mut AppContext,
13481 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13482
13483 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13484
13485 fn document_highlights(
13486 &self,
13487 buffer: &Model<Buffer>,
13488 position: text::Anchor,
13489 cx: &mut AppContext,
13490 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13491
13492 fn definitions(
13493 &self,
13494 buffer: &Model<Buffer>,
13495 position: text::Anchor,
13496 kind: GotoDefinitionKind,
13497 cx: &mut AppContext,
13498 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13499
13500 fn range_for_rename(
13501 &self,
13502 buffer: &Model<Buffer>,
13503 position: text::Anchor,
13504 cx: &mut AppContext,
13505 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13506
13507 fn perform_rename(
13508 &self,
13509 buffer: &Model<Buffer>,
13510 position: text::Anchor,
13511 new_name: String,
13512 cx: &mut AppContext,
13513 ) -> Option<Task<Result<ProjectTransaction>>>;
13514}
13515
13516pub trait CompletionProvider {
13517 fn completions(
13518 &self,
13519 buffer: &Model<Buffer>,
13520 buffer_position: text::Anchor,
13521 trigger: CompletionContext,
13522 cx: &mut ViewContext<Editor>,
13523 ) -> Task<Result<Vec<Completion>>>;
13524
13525 fn resolve_completions(
13526 &self,
13527 buffer: Model<Buffer>,
13528 completion_indices: Vec<usize>,
13529 completions: Arc<RwLock<Box<[Completion]>>>,
13530 cx: &mut ViewContext<Editor>,
13531 ) -> Task<Result<bool>>;
13532
13533 fn apply_additional_edits_for_completion(
13534 &self,
13535 buffer: Model<Buffer>,
13536 completion: Completion,
13537 push_to_history: bool,
13538 cx: &mut ViewContext<Editor>,
13539 ) -> Task<Result<Option<language::Transaction>>>;
13540
13541 fn is_completion_trigger(
13542 &self,
13543 buffer: &Model<Buffer>,
13544 position: language::Anchor,
13545 text: &str,
13546 trigger_in_words: bool,
13547 cx: &mut ViewContext<Editor>,
13548 ) -> bool;
13549
13550 fn sort_completions(&self) -> bool {
13551 true
13552 }
13553}
13554
13555pub trait CodeActionProvider {
13556 fn code_actions(
13557 &self,
13558 buffer: &Model<Buffer>,
13559 range: Range<text::Anchor>,
13560 cx: &mut WindowContext,
13561 ) -> Task<Result<Vec<CodeAction>>>;
13562
13563 fn apply_code_action(
13564 &self,
13565 buffer_handle: Model<Buffer>,
13566 action: CodeAction,
13567 excerpt_id: ExcerptId,
13568 push_to_history: bool,
13569 cx: &mut WindowContext,
13570 ) -> Task<Result<ProjectTransaction>>;
13571}
13572
13573impl CodeActionProvider for Model<Project> {
13574 fn code_actions(
13575 &self,
13576 buffer: &Model<Buffer>,
13577 range: Range<text::Anchor>,
13578 cx: &mut WindowContext,
13579 ) -> Task<Result<Vec<CodeAction>>> {
13580 self.update(cx, |project, cx| project.code_actions(buffer, range, cx))
13581 }
13582
13583 fn apply_code_action(
13584 &self,
13585 buffer_handle: Model<Buffer>,
13586 action: CodeAction,
13587 _excerpt_id: ExcerptId,
13588 push_to_history: bool,
13589 cx: &mut WindowContext,
13590 ) -> Task<Result<ProjectTransaction>> {
13591 self.update(cx, |project, cx| {
13592 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13593 })
13594 }
13595}
13596
13597fn snippet_completions(
13598 project: &Project,
13599 buffer: &Model<Buffer>,
13600 buffer_position: text::Anchor,
13601 cx: &mut AppContext,
13602) -> Vec<Completion> {
13603 let language = buffer.read(cx).language_at(buffer_position);
13604 let language_name = language.as_ref().map(|language| language.lsp_id());
13605 let snippet_store = project.snippets().read(cx);
13606 let snippets = snippet_store.snippets_for(language_name, cx);
13607
13608 if snippets.is_empty() {
13609 return vec![];
13610 }
13611 let snapshot = buffer.read(cx).text_snapshot();
13612 let chars = snapshot.reversed_chars_for_range(text::Anchor::MIN..buffer_position);
13613
13614 let scope = language.map(|language| language.default_scope());
13615 let classifier = CharClassifier::new(scope).for_completion(true);
13616 let mut last_word = chars
13617 .take_while(|c| classifier.is_word(*c))
13618 .collect::<String>();
13619 last_word = last_word.chars().rev().collect();
13620 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13621 let to_lsp = |point: &text::Anchor| {
13622 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13623 point_to_lsp(end)
13624 };
13625 let lsp_end = to_lsp(&buffer_position);
13626 snippets
13627 .into_iter()
13628 .filter_map(|snippet| {
13629 let matching_prefix = snippet
13630 .prefix
13631 .iter()
13632 .find(|prefix| prefix.starts_with(&last_word))?;
13633 let start = as_offset - last_word.len();
13634 let start = snapshot.anchor_before(start);
13635 let range = start..buffer_position;
13636 let lsp_start = to_lsp(&start);
13637 let lsp_range = lsp::Range {
13638 start: lsp_start,
13639 end: lsp_end,
13640 };
13641 Some(Completion {
13642 old_range: range,
13643 new_text: snippet.body.clone(),
13644 label: CodeLabel {
13645 text: matching_prefix.clone(),
13646 runs: vec![],
13647 filter_range: 0..matching_prefix.len(),
13648 },
13649 server_id: LanguageServerId(usize::MAX),
13650 documentation: snippet.description.clone().map(Documentation::SingleLine),
13651 lsp_completion: lsp::CompletionItem {
13652 label: snippet.prefix.first().unwrap().clone(),
13653 kind: Some(CompletionItemKind::SNIPPET),
13654 label_details: snippet.description.as_ref().map(|description| {
13655 lsp::CompletionItemLabelDetails {
13656 detail: Some(description.clone()),
13657 description: None,
13658 }
13659 }),
13660 insert_text_format: Some(InsertTextFormat::SNIPPET),
13661 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13662 lsp::InsertReplaceEdit {
13663 new_text: snippet.body.clone(),
13664 insert: lsp_range,
13665 replace: lsp_range,
13666 },
13667 )),
13668 filter_text: Some(snippet.body.clone()),
13669 sort_text: Some(char::MAX.to_string()),
13670 ..Default::default()
13671 },
13672 confirm: None,
13673 })
13674 })
13675 .collect()
13676}
13677
13678impl CompletionProvider for Model<Project> {
13679 fn completions(
13680 &self,
13681 buffer: &Model<Buffer>,
13682 buffer_position: text::Anchor,
13683 options: CompletionContext,
13684 cx: &mut ViewContext<Editor>,
13685 ) -> Task<Result<Vec<Completion>>> {
13686 self.update(cx, |project, cx| {
13687 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13688 let project_completions = project.completions(buffer, buffer_position, options, cx);
13689 cx.background_executor().spawn(async move {
13690 let mut completions = project_completions.await?;
13691 //let snippets = snippets.into_iter().;
13692 completions.extend(snippets);
13693 Ok(completions)
13694 })
13695 })
13696 }
13697
13698 fn resolve_completions(
13699 &self,
13700 buffer: Model<Buffer>,
13701 completion_indices: Vec<usize>,
13702 completions: Arc<RwLock<Box<[Completion]>>>,
13703 cx: &mut ViewContext<Editor>,
13704 ) -> Task<Result<bool>> {
13705 self.update(cx, |project, cx| {
13706 project.resolve_completions(buffer, completion_indices, completions, cx)
13707 })
13708 }
13709
13710 fn apply_additional_edits_for_completion(
13711 &self,
13712 buffer: Model<Buffer>,
13713 completion: Completion,
13714 push_to_history: bool,
13715 cx: &mut ViewContext<Editor>,
13716 ) -> Task<Result<Option<language::Transaction>>> {
13717 self.update(cx, |project, cx| {
13718 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13719 })
13720 }
13721
13722 fn is_completion_trigger(
13723 &self,
13724 buffer: &Model<Buffer>,
13725 position: language::Anchor,
13726 text: &str,
13727 trigger_in_words: bool,
13728 cx: &mut ViewContext<Editor>,
13729 ) -> bool {
13730 if !EditorSettings::get_global(cx).show_completions_on_input {
13731 return false;
13732 }
13733
13734 let mut chars = text.chars();
13735 let char = if let Some(char) = chars.next() {
13736 char
13737 } else {
13738 return false;
13739 };
13740 if chars.next().is_some() {
13741 return false;
13742 }
13743
13744 let buffer = buffer.read(cx);
13745 let classifier = buffer
13746 .snapshot()
13747 .char_classifier_at(position)
13748 .for_completion(true);
13749 if trigger_in_words && classifier.is_word(char) {
13750 return true;
13751 }
13752
13753 buffer
13754 .completion_triggers()
13755 .iter()
13756 .any(|string| string == text)
13757 }
13758}
13759
13760impl SemanticsProvider for Model<Project> {
13761 fn hover(
13762 &self,
13763 buffer: &Model<Buffer>,
13764 position: text::Anchor,
13765 cx: &mut AppContext,
13766 ) -> Option<Task<Vec<project::Hover>>> {
13767 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13768 }
13769
13770 fn document_highlights(
13771 &self,
13772 buffer: &Model<Buffer>,
13773 position: text::Anchor,
13774 cx: &mut AppContext,
13775 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13776 Some(self.update(cx, |project, cx| {
13777 project.document_highlights(buffer, position, cx)
13778 }))
13779 }
13780
13781 fn definitions(
13782 &self,
13783 buffer: &Model<Buffer>,
13784 position: text::Anchor,
13785 kind: GotoDefinitionKind,
13786 cx: &mut AppContext,
13787 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13788 Some(self.update(cx, |project, cx| match kind {
13789 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13790 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13791 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13792 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13793 }))
13794 }
13795
13796 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13797 // TODO: make this work for remote projects
13798 self.read(cx)
13799 .language_servers_for_buffer(buffer.read(cx), cx)
13800 .any(
13801 |(_, server)| match server.capabilities().inlay_hint_provider {
13802 Some(lsp::OneOf::Left(enabled)) => enabled,
13803 Some(lsp::OneOf::Right(_)) => true,
13804 None => false,
13805 },
13806 )
13807 }
13808
13809 fn inlay_hints(
13810 &self,
13811 buffer_handle: Model<Buffer>,
13812 range: Range<text::Anchor>,
13813 cx: &mut AppContext,
13814 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13815 Some(self.update(cx, |project, cx| {
13816 project.inlay_hints(buffer_handle, range, cx)
13817 }))
13818 }
13819
13820 fn resolve_inlay_hint(
13821 &self,
13822 hint: InlayHint,
13823 buffer_handle: Model<Buffer>,
13824 server_id: LanguageServerId,
13825 cx: &mut AppContext,
13826 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13827 Some(self.update(cx, |project, cx| {
13828 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13829 }))
13830 }
13831
13832 fn range_for_rename(
13833 &self,
13834 buffer: &Model<Buffer>,
13835 position: text::Anchor,
13836 cx: &mut AppContext,
13837 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13838 Some(self.update(cx, |project, cx| {
13839 project.prepare_rename(buffer.clone(), position, cx)
13840 }))
13841 }
13842
13843 fn perform_rename(
13844 &self,
13845 buffer: &Model<Buffer>,
13846 position: text::Anchor,
13847 new_name: String,
13848 cx: &mut AppContext,
13849 ) -> Option<Task<Result<ProjectTransaction>>> {
13850 Some(self.update(cx, |project, cx| {
13851 project.perform_rename(buffer.clone(), position, new_name, cx)
13852 }))
13853 }
13854}
13855
13856fn inlay_hint_settings(
13857 location: Anchor,
13858 snapshot: &MultiBufferSnapshot,
13859 cx: &mut ViewContext<'_, Editor>,
13860) -> InlayHintSettings {
13861 let file = snapshot.file_at(location);
13862 let language = snapshot.language_at(location).map(|l| l.name());
13863 language_settings(language, file, cx).inlay_hints
13864}
13865
13866fn consume_contiguous_rows(
13867 contiguous_row_selections: &mut Vec<Selection<Point>>,
13868 selection: &Selection<Point>,
13869 display_map: &DisplaySnapshot,
13870 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
13871) -> (MultiBufferRow, MultiBufferRow) {
13872 contiguous_row_selections.push(selection.clone());
13873 let start_row = MultiBufferRow(selection.start.row);
13874 let mut end_row = ending_row(selection, display_map);
13875
13876 while let Some(next_selection) = selections.peek() {
13877 if next_selection.start.row <= end_row.0 {
13878 end_row = ending_row(next_selection, display_map);
13879 contiguous_row_selections.push(selections.next().unwrap().clone());
13880 } else {
13881 break;
13882 }
13883 }
13884 (start_row, end_row)
13885}
13886
13887fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13888 if next_selection.end.column > 0 || next_selection.is_empty() {
13889 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13890 } else {
13891 MultiBufferRow(next_selection.end.row)
13892 }
13893}
13894
13895impl EditorSnapshot {
13896 pub fn remote_selections_in_range<'a>(
13897 &'a self,
13898 range: &'a Range<Anchor>,
13899 collaboration_hub: &dyn CollaborationHub,
13900 cx: &'a AppContext,
13901 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13902 let participant_names = collaboration_hub.user_names(cx);
13903 let participant_indices = collaboration_hub.user_participant_indices(cx);
13904 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13905 let collaborators_by_replica_id = collaborators_by_peer_id
13906 .iter()
13907 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13908 .collect::<HashMap<_, _>>();
13909 self.buffer_snapshot
13910 .selections_in_range(range, false)
13911 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13912 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13913 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13914 let user_name = participant_names.get(&collaborator.user_id).cloned();
13915 Some(RemoteSelection {
13916 replica_id,
13917 selection,
13918 cursor_shape,
13919 line_mode,
13920 participant_index,
13921 peer_id: collaborator.peer_id,
13922 user_name,
13923 })
13924 })
13925 }
13926
13927 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13928 self.display_snapshot.buffer_snapshot.language_at(position)
13929 }
13930
13931 pub fn is_focused(&self) -> bool {
13932 self.is_focused
13933 }
13934
13935 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13936 self.placeholder_text.as_ref()
13937 }
13938
13939 pub fn scroll_position(&self) -> gpui::Point<f32> {
13940 self.scroll_anchor.scroll_position(&self.display_snapshot)
13941 }
13942
13943 fn gutter_dimensions(
13944 &self,
13945 font_id: FontId,
13946 font_size: Pixels,
13947 em_width: Pixels,
13948 em_advance: Pixels,
13949 max_line_number_width: Pixels,
13950 cx: &AppContext,
13951 ) -> GutterDimensions {
13952 if !self.show_gutter {
13953 return GutterDimensions::default();
13954 }
13955 let descent = cx.text_system().descent(font_id, font_size);
13956
13957 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13958 matches!(
13959 ProjectSettings::get_global(cx).git.git_gutter,
13960 Some(GitGutterSetting::TrackedFiles)
13961 )
13962 });
13963 let gutter_settings = EditorSettings::get_global(cx).gutter;
13964 let show_line_numbers = self
13965 .show_line_numbers
13966 .unwrap_or(gutter_settings.line_numbers);
13967 let line_gutter_width = if show_line_numbers {
13968 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13969 let min_width_for_number_on_gutter = em_advance * 4.0;
13970 max_line_number_width.max(min_width_for_number_on_gutter)
13971 } else {
13972 0.0.into()
13973 };
13974
13975 let show_code_actions = self
13976 .show_code_actions
13977 .unwrap_or(gutter_settings.code_actions);
13978
13979 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13980
13981 let git_blame_entries_width =
13982 self.git_blame_gutter_max_author_length
13983 .map(|max_author_length| {
13984 // Length of the author name, but also space for the commit hash,
13985 // the spacing and the timestamp.
13986 let max_char_count = max_author_length
13987 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13988 + 7 // length of commit sha
13989 + 14 // length of max relative timestamp ("60 minutes ago")
13990 + 4; // gaps and margins
13991
13992 em_advance * max_char_count
13993 });
13994
13995 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13996 left_padding += if show_code_actions || show_runnables {
13997 em_width * 3.0
13998 } else if show_git_gutter && show_line_numbers {
13999 em_width * 2.0
14000 } else if show_git_gutter || show_line_numbers {
14001 em_width
14002 } else {
14003 px(0.)
14004 };
14005
14006 let right_padding = if gutter_settings.folds && show_line_numbers {
14007 em_width * 4.0
14008 } else if gutter_settings.folds {
14009 em_width * 3.0
14010 } else if show_line_numbers {
14011 em_width
14012 } else {
14013 px(0.)
14014 };
14015
14016 GutterDimensions {
14017 left_padding,
14018 right_padding,
14019 width: line_gutter_width + left_padding + right_padding,
14020 margin: -descent,
14021 git_blame_entries_width,
14022 }
14023 }
14024
14025 pub fn render_fold_toggle(
14026 &self,
14027 buffer_row: MultiBufferRow,
14028 row_contains_cursor: bool,
14029 editor: View<Editor>,
14030 cx: &mut WindowContext,
14031 ) -> Option<AnyElement> {
14032 let folded = self.is_line_folded(buffer_row);
14033
14034 if let Some(crease) = self
14035 .crease_snapshot
14036 .query_row(buffer_row, &self.buffer_snapshot)
14037 {
14038 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14039 if folded {
14040 editor.update(cx, |editor, cx| {
14041 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14042 });
14043 } else {
14044 editor.update(cx, |editor, cx| {
14045 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14046 });
14047 }
14048 });
14049
14050 Some((crease.render_toggle)(
14051 buffer_row,
14052 folded,
14053 toggle_callback,
14054 cx,
14055 ))
14056 } else if folded
14057 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
14058 {
14059 Some(
14060 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
14061 .selected(folded)
14062 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14063 if folded {
14064 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14065 } else {
14066 this.fold_at(&FoldAt { buffer_row }, cx);
14067 }
14068 }))
14069 .into_any_element(),
14070 )
14071 } else {
14072 None
14073 }
14074 }
14075
14076 pub fn render_crease_trailer(
14077 &self,
14078 buffer_row: MultiBufferRow,
14079 cx: &mut WindowContext,
14080 ) -> Option<AnyElement> {
14081 let folded = self.is_line_folded(buffer_row);
14082 let crease = self
14083 .crease_snapshot
14084 .query_row(buffer_row, &self.buffer_snapshot)?;
14085 Some((crease.render_trailer)(buffer_row, folded, cx))
14086 }
14087}
14088
14089impl Deref for EditorSnapshot {
14090 type Target = DisplaySnapshot;
14091
14092 fn deref(&self) -> &Self::Target {
14093 &self.display_snapshot
14094 }
14095}
14096
14097#[derive(Clone, Debug, PartialEq, Eq)]
14098pub enum EditorEvent {
14099 InputIgnored {
14100 text: Arc<str>,
14101 },
14102 InputHandled {
14103 utf16_range_to_replace: Option<Range<isize>>,
14104 text: Arc<str>,
14105 },
14106 ExcerptsAdded {
14107 buffer: Model<Buffer>,
14108 predecessor: ExcerptId,
14109 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14110 },
14111 ExcerptsRemoved {
14112 ids: Vec<ExcerptId>,
14113 },
14114 ExcerptsEdited {
14115 ids: Vec<ExcerptId>,
14116 },
14117 ExcerptsExpanded {
14118 ids: Vec<ExcerptId>,
14119 },
14120 BufferEdited,
14121 Edited {
14122 transaction_id: clock::Lamport,
14123 },
14124 Reparsed(BufferId),
14125 Focused,
14126 FocusedIn,
14127 Blurred,
14128 DirtyChanged,
14129 Saved,
14130 TitleChanged,
14131 DiffBaseChanged,
14132 SelectionsChanged {
14133 local: bool,
14134 },
14135 ScrollPositionChanged {
14136 local: bool,
14137 autoscroll: bool,
14138 },
14139 Closed,
14140 TransactionUndone {
14141 transaction_id: clock::Lamport,
14142 },
14143 TransactionBegun {
14144 transaction_id: clock::Lamport,
14145 },
14146 Reloaded,
14147 CursorShapeChanged,
14148}
14149
14150impl EventEmitter<EditorEvent> for Editor {}
14151
14152impl FocusableView for Editor {
14153 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14154 self.focus_handle.clone()
14155 }
14156}
14157
14158impl Render for Editor {
14159 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14160 let settings = ThemeSettings::get_global(cx);
14161
14162 let mut text_style = match self.mode {
14163 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14164 color: cx.theme().colors().editor_foreground,
14165 font_family: settings.ui_font.family.clone(),
14166 font_features: settings.ui_font.features.clone(),
14167 font_fallbacks: settings.ui_font.fallbacks.clone(),
14168 font_size: rems(0.875).into(),
14169 font_weight: settings.ui_font.weight,
14170 line_height: relative(settings.buffer_line_height.value()),
14171 ..Default::default()
14172 },
14173 EditorMode::Full => TextStyle {
14174 color: cx.theme().colors().editor_foreground,
14175 font_family: settings.buffer_font.family.clone(),
14176 font_features: settings.buffer_font.features.clone(),
14177 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14178 font_size: settings.buffer_font_size(cx).into(),
14179 font_weight: settings.buffer_font.weight,
14180 line_height: relative(settings.buffer_line_height.value()),
14181 ..Default::default()
14182 },
14183 };
14184 if let Some(text_style_refinement) = &self.text_style_refinement {
14185 text_style.refine(text_style_refinement)
14186 }
14187
14188 let background = match self.mode {
14189 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14190 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14191 EditorMode::Full => cx.theme().colors().editor_background,
14192 };
14193
14194 EditorElement::new(
14195 cx.view(),
14196 EditorStyle {
14197 background,
14198 local_player: cx.theme().players().local(),
14199 text: text_style,
14200 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14201 syntax: cx.theme().syntax().clone(),
14202 status: cx.theme().status().clone(),
14203 inlay_hints_style: make_inlay_hints_style(cx),
14204 suggestions_style: HighlightStyle {
14205 color: Some(cx.theme().status().predictive),
14206 ..HighlightStyle::default()
14207 },
14208 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14209 },
14210 )
14211 }
14212}
14213
14214impl ViewInputHandler for Editor {
14215 fn text_for_range(
14216 &mut self,
14217 range_utf16: Range<usize>,
14218 cx: &mut ViewContext<Self>,
14219 ) -> Option<String> {
14220 Some(
14221 self.buffer
14222 .read(cx)
14223 .read(cx)
14224 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
14225 .collect(),
14226 )
14227 }
14228
14229 fn selected_text_range(
14230 &mut self,
14231 ignore_disabled_input: bool,
14232 cx: &mut ViewContext<Self>,
14233 ) -> Option<UTF16Selection> {
14234 // Prevent the IME menu from appearing when holding down an alphabetic key
14235 // while input is disabled.
14236 if !ignore_disabled_input && !self.input_enabled {
14237 return None;
14238 }
14239
14240 let selection = self.selections.newest::<OffsetUtf16>(cx);
14241 let range = selection.range();
14242
14243 Some(UTF16Selection {
14244 range: range.start.0..range.end.0,
14245 reversed: selection.reversed,
14246 })
14247 }
14248
14249 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14250 let snapshot = self.buffer.read(cx).read(cx);
14251 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14252 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14253 }
14254
14255 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14256 self.clear_highlights::<InputComposition>(cx);
14257 self.ime_transaction.take();
14258 }
14259
14260 fn replace_text_in_range(
14261 &mut self,
14262 range_utf16: Option<Range<usize>>,
14263 text: &str,
14264 cx: &mut ViewContext<Self>,
14265 ) {
14266 if !self.input_enabled {
14267 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14268 return;
14269 }
14270
14271 self.transact(cx, |this, cx| {
14272 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14273 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14274 Some(this.selection_replacement_ranges(range_utf16, cx))
14275 } else {
14276 this.marked_text_ranges(cx)
14277 };
14278
14279 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14280 let newest_selection_id = this.selections.newest_anchor().id;
14281 this.selections
14282 .all::<OffsetUtf16>(cx)
14283 .iter()
14284 .zip(ranges_to_replace.iter())
14285 .find_map(|(selection, range)| {
14286 if selection.id == newest_selection_id {
14287 Some(
14288 (range.start.0 as isize - selection.head().0 as isize)
14289 ..(range.end.0 as isize - selection.head().0 as isize),
14290 )
14291 } else {
14292 None
14293 }
14294 })
14295 });
14296
14297 cx.emit(EditorEvent::InputHandled {
14298 utf16_range_to_replace: range_to_replace,
14299 text: text.into(),
14300 });
14301
14302 if let Some(new_selected_ranges) = new_selected_ranges {
14303 this.change_selections(None, cx, |selections| {
14304 selections.select_ranges(new_selected_ranges)
14305 });
14306 this.backspace(&Default::default(), cx);
14307 }
14308
14309 this.handle_input(text, cx);
14310 });
14311
14312 if let Some(transaction) = self.ime_transaction {
14313 self.buffer.update(cx, |buffer, cx| {
14314 buffer.group_until_transaction(transaction, cx);
14315 });
14316 }
14317
14318 self.unmark_text(cx);
14319 }
14320
14321 fn replace_and_mark_text_in_range(
14322 &mut self,
14323 range_utf16: Option<Range<usize>>,
14324 text: &str,
14325 new_selected_range_utf16: Option<Range<usize>>,
14326 cx: &mut ViewContext<Self>,
14327 ) {
14328 if !self.input_enabled {
14329 return;
14330 }
14331
14332 let transaction = self.transact(cx, |this, cx| {
14333 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14334 let snapshot = this.buffer.read(cx).read(cx);
14335 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14336 for marked_range in &mut marked_ranges {
14337 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14338 marked_range.start.0 += relative_range_utf16.start;
14339 marked_range.start =
14340 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14341 marked_range.end =
14342 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14343 }
14344 }
14345 Some(marked_ranges)
14346 } else if let Some(range_utf16) = range_utf16 {
14347 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14348 Some(this.selection_replacement_ranges(range_utf16, cx))
14349 } else {
14350 None
14351 };
14352
14353 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14354 let newest_selection_id = this.selections.newest_anchor().id;
14355 this.selections
14356 .all::<OffsetUtf16>(cx)
14357 .iter()
14358 .zip(ranges_to_replace.iter())
14359 .find_map(|(selection, range)| {
14360 if selection.id == newest_selection_id {
14361 Some(
14362 (range.start.0 as isize - selection.head().0 as isize)
14363 ..(range.end.0 as isize - selection.head().0 as isize),
14364 )
14365 } else {
14366 None
14367 }
14368 })
14369 });
14370
14371 cx.emit(EditorEvent::InputHandled {
14372 utf16_range_to_replace: range_to_replace,
14373 text: text.into(),
14374 });
14375
14376 if let Some(ranges) = ranges_to_replace {
14377 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14378 }
14379
14380 let marked_ranges = {
14381 let snapshot = this.buffer.read(cx).read(cx);
14382 this.selections
14383 .disjoint_anchors()
14384 .iter()
14385 .map(|selection| {
14386 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14387 })
14388 .collect::<Vec<_>>()
14389 };
14390
14391 if text.is_empty() {
14392 this.unmark_text(cx);
14393 } else {
14394 this.highlight_text::<InputComposition>(
14395 marked_ranges.clone(),
14396 HighlightStyle {
14397 underline: Some(UnderlineStyle {
14398 thickness: px(1.),
14399 color: None,
14400 wavy: false,
14401 }),
14402 ..Default::default()
14403 },
14404 cx,
14405 );
14406 }
14407
14408 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14409 let use_autoclose = this.use_autoclose;
14410 let use_auto_surround = this.use_auto_surround;
14411 this.set_use_autoclose(false);
14412 this.set_use_auto_surround(false);
14413 this.handle_input(text, cx);
14414 this.set_use_autoclose(use_autoclose);
14415 this.set_use_auto_surround(use_auto_surround);
14416
14417 if let Some(new_selected_range) = new_selected_range_utf16 {
14418 let snapshot = this.buffer.read(cx).read(cx);
14419 let new_selected_ranges = marked_ranges
14420 .into_iter()
14421 .map(|marked_range| {
14422 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14423 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14424 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14425 snapshot.clip_offset_utf16(new_start, Bias::Left)
14426 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14427 })
14428 .collect::<Vec<_>>();
14429
14430 drop(snapshot);
14431 this.change_selections(None, cx, |selections| {
14432 selections.select_ranges(new_selected_ranges)
14433 });
14434 }
14435 });
14436
14437 self.ime_transaction = self.ime_transaction.or(transaction);
14438 if let Some(transaction) = self.ime_transaction {
14439 self.buffer.update(cx, |buffer, cx| {
14440 buffer.group_until_transaction(transaction, cx);
14441 });
14442 }
14443
14444 if self.text_highlights::<InputComposition>(cx).is_none() {
14445 self.ime_transaction.take();
14446 }
14447 }
14448
14449 fn bounds_for_range(
14450 &mut self,
14451 range_utf16: Range<usize>,
14452 element_bounds: gpui::Bounds<Pixels>,
14453 cx: &mut ViewContext<Self>,
14454 ) -> Option<gpui::Bounds<Pixels>> {
14455 let text_layout_details = self.text_layout_details(cx);
14456 let style = &text_layout_details.editor_style;
14457 let font_id = cx.text_system().resolve_font(&style.text.font());
14458 let font_size = style.text.font_size.to_pixels(cx.rem_size());
14459 let line_height = style.text.line_height_in_pixels(cx.rem_size());
14460
14461 let em_width = cx
14462 .text_system()
14463 .typographic_bounds(font_id, font_size, 'm')
14464 .unwrap()
14465 .size
14466 .width;
14467
14468 let snapshot = self.snapshot(cx);
14469 let scroll_position = snapshot.scroll_position();
14470 let scroll_left = scroll_position.x * em_width;
14471
14472 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14473 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14474 + self.gutter_dimensions.width;
14475 let y = line_height * (start.row().as_f32() - scroll_position.y);
14476
14477 Some(Bounds {
14478 origin: element_bounds.origin + point(x, y),
14479 size: size(em_width, line_height),
14480 })
14481 }
14482}
14483
14484trait SelectionExt {
14485 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14486 fn spanned_rows(
14487 &self,
14488 include_end_if_at_line_start: bool,
14489 map: &DisplaySnapshot,
14490 ) -> Range<MultiBufferRow>;
14491}
14492
14493impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14494 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14495 let start = self
14496 .start
14497 .to_point(&map.buffer_snapshot)
14498 .to_display_point(map);
14499 let end = self
14500 .end
14501 .to_point(&map.buffer_snapshot)
14502 .to_display_point(map);
14503 if self.reversed {
14504 end..start
14505 } else {
14506 start..end
14507 }
14508 }
14509
14510 fn spanned_rows(
14511 &self,
14512 include_end_if_at_line_start: bool,
14513 map: &DisplaySnapshot,
14514 ) -> Range<MultiBufferRow> {
14515 let start = self.start.to_point(&map.buffer_snapshot);
14516 let mut end = self.end.to_point(&map.buffer_snapshot);
14517 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14518 end.row -= 1;
14519 }
14520
14521 let buffer_start = map.prev_line_boundary(start).0;
14522 let buffer_end = map.next_line_boundary(end).0;
14523 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14524 }
14525}
14526
14527impl<T: InvalidationRegion> InvalidationStack<T> {
14528 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14529 where
14530 S: Clone + ToOffset,
14531 {
14532 while let Some(region) = self.last() {
14533 let all_selections_inside_invalidation_ranges =
14534 if selections.len() == region.ranges().len() {
14535 selections
14536 .iter()
14537 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14538 .all(|(selection, invalidation_range)| {
14539 let head = selection.head().to_offset(buffer);
14540 invalidation_range.start <= head && invalidation_range.end >= head
14541 })
14542 } else {
14543 false
14544 };
14545
14546 if all_selections_inside_invalidation_ranges {
14547 break;
14548 } else {
14549 self.pop();
14550 }
14551 }
14552 }
14553}
14554
14555impl<T> Default for InvalidationStack<T> {
14556 fn default() -> Self {
14557 Self(Default::default())
14558 }
14559}
14560
14561impl<T> Deref for InvalidationStack<T> {
14562 type Target = Vec<T>;
14563
14564 fn deref(&self) -> &Self::Target {
14565 &self.0
14566 }
14567}
14568
14569impl<T> DerefMut for InvalidationStack<T> {
14570 fn deref_mut(&mut self) -> &mut Self::Target {
14571 &mut self.0
14572 }
14573}
14574
14575impl InvalidationRegion for SnippetState {
14576 fn ranges(&self) -> &[Range<Anchor>] {
14577 &self.ranges[self.active_index]
14578 }
14579}
14580
14581pub fn diagnostic_block_renderer(
14582 diagnostic: Diagnostic,
14583 max_message_rows: Option<u8>,
14584 allow_closing: bool,
14585 _is_valid: bool,
14586) -> RenderBlock {
14587 let (text_without_backticks, code_ranges) =
14588 highlight_diagnostic_message(&diagnostic, max_message_rows);
14589
14590 Box::new(move |cx: &mut BlockContext| {
14591 let group_id: SharedString = cx.block_id.to_string().into();
14592
14593 let mut text_style = cx.text_style().clone();
14594 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14595 let theme_settings = ThemeSettings::get_global(cx);
14596 text_style.font_family = theme_settings.buffer_font.family.clone();
14597 text_style.font_style = theme_settings.buffer_font.style;
14598 text_style.font_features = theme_settings.buffer_font.features.clone();
14599 text_style.font_weight = theme_settings.buffer_font.weight;
14600
14601 let multi_line_diagnostic = diagnostic.message.contains('\n');
14602
14603 let buttons = |diagnostic: &Diagnostic| {
14604 if multi_line_diagnostic {
14605 v_flex()
14606 } else {
14607 h_flex()
14608 }
14609 .when(allow_closing, |div| {
14610 div.children(diagnostic.is_primary.then(|| {
14611 IconButton::new("close-block", IconName::XCircle)
14612 .icon_color(Color::Muted)
14613 .size(ButtonSize::Compact)
14614 .style(ButtonStyle::Transparent)
14615 .visible_on_hover(group_id.clone())
14616 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14617 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14618 }))
14619 })
14620 .child(
14621 IconButton::new("copy-block", IconName::Copy)
14622 .icon_color(Color::Muted)
14623 .size(ButtonSize::Compact)
14624 .style(ButtonStyle::Transparent)
14625 .visible_on_hover(group_id.clone())
14626 .on_click({
14627 let message = diagnostic.message.clone();
14628 move |_click, cx| {
14629 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14630 }
14631 })
14632 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14633 )
14634 };
14635
14636 let icon_size = buttons(&diagnostic)
14637 .into_any_element()
14638 .layout_as_root(AvailableSpace::min_size(), cx);
14639
14640 h_flex()
14641 .id(cx.block_id)
14642 .group(group_id.clone())
14643 .relative()
14644 .size_full()
14645 .pl(cx.gutter_dimensions.width)
14646 .w(cx.max_width - cx.gutter_dimensions.full_width())
14647 .child(
14648 div()
14649 .flex()
14650 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14651 .flex_shrink(),
14652 )
14653 .child(buttons(&diagnostic))
14654 .child(div().flex().flex_shrink_0().child(
14655 StyledText::new(text_without_backticks.clone()).with_highlights(
14656 &text_style,
14657 code_ranges.iter().map(|range| {
14658 (
14659 range.clone(),
14660 HighlightStyle {
14661 font_weight: Some(FontWeight::BOLD),
14662 ..Default::default()
14663 },
14664 )
14665 }),
14666 ),
14667 ))
14668 .into_any_element()
14669 })
14670}
14671
14672pub fn highlight_diagnostic_message(
14673 diagnostic: &Diagnostic,
14674 mut max_message_rows: Option<u8>,
14675) -> (SharedString, Vec<Range<usize>>) {
14676 let mut text_without_backticks = String::new();
14677 let mut code_ranges = Vec::new();
14678
14679 if let Some(source) = &diagnostic.source {
14680 text_without_backticks.push_str(source);
14681 code_ranges.push(0..source.len());
14682 text_without_backticks.push_str(": ");
14683 }
14684
14685 let mut prev_offset = 0;
14686 let mut in_code_block = false;
14687 let has_row_limit = max_message_rows.is_some();
14688 let mut newline_indices = diagnostic
14689 .message
14690 .match_indices('\n')
14691 .filter(|_| has_row_limit)
14692 .map(|(ix, _)| ix)
14693 .fuse()
14694 .peekable();
14695
14696 for (quote_ix, _) in diagnostic
14697 .message
14698 .match_indices('`')
14699 .chain([(diagnostic.message.len(), "")])
14700 {
14701 let mut first_newline_ix = None;
14702 let mut last_newline_ix = None;
14703 while let Some(newline_ix) = newline_indices.peek() {
14704 if *newline_ix < quote_ix {
14705 if first_newline_ix.is_none() {
14706 first_newline_ix = Some(*newline_ix);
14707 }
14708 last_newline_ix = Some(*newline_ix);
14709
14710 if let Some(rows_left) = &mut max_message_rows {
14711 if *rows_left == 0 {
14712 break;
14713 } else {
14714 *rows_left -= 1;
14715 }
14716 }
14717 let _ = newline_indices.next();
14718 } else {
14719 break;
14720 }
14721 }
14722 let prev_len = text_without_backticks.len();
14723 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14724 text_without_backticks.push_str(new_text);
14725 if in_code_block {
14726 code_ranges.push(prev_len..text_without_backticks.len());
14727 }
14728 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14729 in_code_block = !in_code_block;
14730 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14731 text_without_backticks.push_str("...");
14732 break;
14733 }
14734 }
14735
14736 (text_without_backticks.into(), code_ranges)
14737}
14738
14739fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14740 match severity {
14741 DiagnosticSeverity::ERROR => colors.error,
14742 DiagnosticSeverity::WARNING => colors.warning,
14743 DiagnosticSeverity::INFORMATION => colors.info,
14744 DiagnosticSeverity::HINT => colors.info,
14745 _ => colors.ignored,
14746 }
14747}
14748
14749pub fn styled_runs_for_code_label<'a>(
14750 label: &'a CodeLabel,
14751 syntax_theme: &'a theme::SyntaxTheme,
14752) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14753 let fade_out = HighlightStyle {
14754 fade_out: Some(0.35),
14755 ..Default::default()
14756 };
14757
14758 let mut prev_end = label.filter_range.end;
14759 label
14760 .runs
14761 .iter()
14762 .enumerate()
14763 .flat_map(move |(ix, (range, highlight_id))| {
14764 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14765 style
14766 } else {
14767 return Default::default();
14768 };
14769 let mut muted_style = style;
14770 muted_style.highlight(fade_out);
14771
14772 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14773 if range.start >= label.filter_range.end {
14774 if range.start > prev_end {
14775 runs.push((prev_end..range.start, fade_out));
14776 }
14777 runs.push((range.clone(), muted_style));
14778 } else if range.end <= label.filter_range.end {
14779 runs.push((range.clone(), style));
14780 } else {
14781 runs.push((range.start..label.filter_range.end, style));
14782 runs.push((label.filter_range.end..range.end, muted_style));
14783 }
14784 prev_end = cmp::max(prev_end, range.end);
14785
14786 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14787 runs.push((prev_end..label.text.len(), fade_out));
14788 }
14789
14790 runs
14791 })
14792}
14793
14794pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14795 let mut prev_index = 0;
14796 let mut prev_codepoint: Option<char> = None;
14797 text.char_indices()
14798 .chain([(text.len(), '\0')])
14799 .filter_map(move |(index, codepoint)| {
14800 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14801 let is_boundary = index == text.len()
14802 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14803 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14804 if is_boundary {
14805 let chunk = &text[prev_index..index];
14806 prev_index = index;
14807 Some(chunk)
14808 } else {
14809 None
14810 }
14811 })
14812}
14813
14814pub trait RangeToAnchorExt: Sized {
14815 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14816
14817 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14818 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14819 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14820 }
14821}
14822
14823impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14824 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14825 let start_offset = self.start.to_offset(snapshot);
14826 let end_offset = self.end.to_offset(snapshot);
14827 if start_offset == end_offset {
14828 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14829 } else {
14830 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14831 }
14832 }
14833}
14834
14835pub trait RowExt {
14836 fn as_f32(&self) -> f32;
14837
14838 fn next_row(&self) -> Self;
14839
14840 fn previous_row(&self) -> Self;
14841
14842 fn minus(&self, other: Self) -> u32;
14843}
14844
14845impl RowExt for DisplayRow {
14846 fn as_f32(&self) -> f32 {
14847 self.0 as f32
14848 }
14849
14850 fn next_row(&self) -> Self {
14851 Self(self.0 + 1)
14852 }
14853
14854 fn previous_row(&self) -> Self {
14855 Self(self.0.saturating_sub(1))
14856 }
14857
14858 fn minus(&self, other: Self) -> u32 {
14859 self.0 - other.0
14860 }
14861}
14862
14863impl RowExt for MultiBufferRow {
14864 fn as_f32(&self) -> f32 {
14865 self.0 as f32
14866 }
14867
14868 fn next_row(&self) -> Self {
14869 Self(self.0 + 1)
14870 }
14871
14872 fn previous_row(&self) -> Self {
14873 Self(self.0.saturating_sub(1))
14874 }
14875
14876 fn minus(&self, other: Self) -> u32 {
14877 self.0 - other.0
14878 }
14879}
14880
14881trait RowRangeExt {
14882 type Row;
14883
14884 fn len(&self) -> usize;
14885
14886 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14887}
14888
14889impl RowRangeExt for Range<MultiBufferRow> {
14890 type Row = MultiBufferRow;
14891
14892 fn len(&self) -> usize {
14893 (self.end.0 - self.start.0) as usize
14894 }
14895
14896 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14897 (self.start.0..self.end.0).map(MultiBufferRow)
14898 }
14899}
14900
14901impl RowRangeExt for Range<DisplayRow> {
14902 type Row = DisplayRow;
14903
14904 fn len(&self) -> usize {
14905 (self.end.0 - self.start.0) as usize
14906 }
14907
14908 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14909 (self.start.0..self.end.0).map(DisplayRow)
14910 }
14911}
14912
14913fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14914 if hunk.diff_base_byte_range.is_empty() {
14915 DiffHunkStatus::Added
14916 } else if hunk.row_range.is_empty() {
14917 DiffHunkStatus::Removed
14918 } else {
14919 DiffHunkStatus::Modified
14920 }
14921}
14922
14923/// If select range has more than one line, we
14924/// just point the cursor to range.start.
14925fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14926 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14927 range
14928 } else {
14929 range.start..range.start
14930 }
14931}