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;
51use ::git::{parse_git_remote_url, BuildPermalinkParams, GitHostingProviderRegistry};
52pub(crate) use actions::*;
53use aho_corasick::AhoCorasick;
54use anyhow::{anyhow, Context as _, Result};
55use blink_manager::BlinkManager;
56use client::{Collaborator, ParticipantIndex};
57use clock::ReplicaId;
58use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
59use convert_case::{Case, Casing};
60use debounced_delay::DebouncedDelay;
61use display_map::*;
62pub use display_map::{DisplayPoint, FoldPlaceholder};
63pub use editor_settings::{
64 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
65};
66pub use editor_settings_controls::*;
67use element::LineWithInvisibles;
68pub use element::{
69 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
70};
71use futures::{future, FutureExt};
72use fuzzy::{StringMatch, StringMatchCandidate};
73use git::blame::GitBlame;
74use gpui::{
75 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
76 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardEntry,
77 ClipboardItem, Context, DispatchPhase, ElementId, EntityId, EventEmitter, FocusHandle,
78 FocusOutEvent, FocusableView, FontId, FontWeight, HighlightStyle, Hsla, InteractiveText,
79 KeyContext, ListSizingBehavior, Model, MouseButton, PaintQuad, ParentElement, Pixels, Render,
80 SharedString, Size, StrikethroughStyle, Styled, StyledText, Subscription, Task, TextStyle,
81 UTF16Selection, UnderlineStyle, UniformListScrollHandle, View, ViewContext, ViewInputHandler,
82 VisualContext, WeakFocusHandle, WeakView, WindowContext,
83};
84use highlight_matching_bracket::refresh_matching_bracket_highlights;
85use hover_popover::{hide_hover, HoverState};
86pub(crate) use hunk_diff::HoveredHunk;
87use hunk_diff::{diff_hunk_to_display, ExpandedHunks};
88use indent_guides::ActiveIndentGuidesState;
89use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
90pub use inline_completion_provider::*;
91pub use items::MAX_TAB_TITLE_LEN;
92use itertools::Itertools;
93use language::{
94 language_settings::{self, all_language_settings, InlayHintSettings},
95 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
96 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
97 Point, Selection, SelectionGoal, TransactionId,
98};
99use language::{
100 point_to_lsp, BufferRow, CharClassifier, LanguageServerName, Runnable, RunnableRange,
101};
102use linked_editing_ranges::refresh_linked_ranges;
103pub use proposed_changes_editor::{
104 ProposedChangesBuffer, ProposedChangesEditor, ProposedChangesEditorToolbar,
105};
106use similar::{ChangeTag, TextDiff};
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::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
136use serde::{Deserialize, Serialize};
137use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
138use smallvec::SmallVec;
139use snippet::Snippet;
140use std::{
141 any::TypeId,
142 borrow::Cow,
143 cell::RefCell,
144 cmp::{self, Ordering, Reverse},
145 mem,
146 num::NonZeroU32,
147 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
148 path::{Path, PathBuf},
149 rc::Rc,
150 sync::Arc,
151 time::{Duration, Instant},
152};
153pub use sum_tree::Bias;
154use sum_tree::TreeMap;
155use text::{BufferId, OffsetUtf16, Rope};
156use theme::{
157 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
158 ThemeColors, ThemeSettings,
159};
160use ui::{
161 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
162 ListItem, Popover, PopoverMenuHandle, Tooltip,
163};
164use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
165use workspace::item::{ItemHandle, PreviewTabsSettings};
166use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
167use workspace::{
168 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
169};
170use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
171
172use crate::hover_links::find_url;
173use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
174
175pub const FILE_HEADER_HEIGHT: u32 = 1;
176pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
177pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
178pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
179const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
180const MAX_LINE_LEN: usize = 1024;
181const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
182const MAX_SELECTION_HISTORY_LEN: usize = 1024;
183pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
184#[doc(hidden)]
185pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
186#[doc(hidden)]
187pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
188
189pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
190pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
191
192pub fn render_parsed_markdown(
193 element_id: impl Into<ElementId>,
194 parsed: &language::ParsedMarkdown,
195 editor_style: &EditorStyle,
196 workspace: Option<WeakView<Workspace>>,
197 cx: &mut WindowContext,
198) -> InteractiveText {
199 let code_span_background_color = cx
200 .theme()
201 .colors()
202 .editor_document_highlight_read_background;
203
204 let highlights = gpui::combine_highlights(
205 parsed.highlights.iter().filter_map(|(range, highlight)| {
206 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
207 Some((range.clone(), highlight))
208 }),
209 parsed
210 .regions
211 .iter()
212 .zip(&parsed.region_ranges)
213 .filter_map(|(region, range)| {
214 if region.code {
215 Some((
216 range.clone(),
217 HighlightStyle {
218 background_color: Some(code_span_background_color),
219 ..Default::default()
220 },
221 ))
222 } else {
223 None
224 }
225 }),
226 );
227
228 let mut links = Vec::new();
229 let mut link_ranges = Vec::new();
230 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
231 if let Some(link) = region.link.clone() {
232 links.push(link);
233 link_ranges.push(range.clone());
234 }
235 }
236
237 InteractiveText::new(
238 element_id,
239 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
240 )
241 .on_click(link_ranges, move |clicked_range_ix, cx| {
242 match &links[clicked_range_ix] {
243 markdown::Link::Web { url } => cx.open_url(url),
244 markdown::Link::Path { path } => {
245 if let Some(workspace) = &workspace {
246 _ = workspace.update(cx, |workspace, cx| {
247 workspace.open_abs_path(path.clone(), false, cx).detach();
248 });
249 }
250 }
251 }
252 })
253}
254
255#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
256pub(crate) enum InlayId {
257 Suggestion(usize),
258 Hint(usize),
259}
260
261impl InlayId {
262 fn id(&self) -> usize {
263 match self {
264 Self::Suggestion(id) => *id,
265 Self::Hint(id) => *id,
266 }
267 }
268}
269
270enum DiffRowHighlight {}
271enum DocumentHighlightRead {}
272enum DocumentHighlightWrite {}
273enum InputComposition {}
274
275#[derive(Copy, Clone, PartialEq, Eq)]
276pub enum Direction {
277 Prev,
278 Next,
279}
280
281#[derive(Debug, Copy, Clone, PartialEq, Eq)]
282pub enum Navigated {
283 Yes,
284 No,
285}
286
287impl Navigated {
288 pub fn from_bool(yes: bool) -> Navigated {
289 if yes {
290 Navigated::Yes
291 } else {
292 Navigated::No
293 }
294 }
295}
296
297pub fn init_settings(cx: &mut AppContext) {
298 EditorSettings::register(cx);
299}
300
301pub fn init(cx: &mut AppContext) {
302 init_settings(cx);
303
304 workspace::register_project_item::<Editor>(cx);
305 workspace::FollowableViewRegistry::register::<Editor>(cx);
306 workspace::register_serializable_item::<Editor>(cx);
307
308 cx.observe_new_views(
309 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
310 workspace.register_action(Editor::new_file);
311 workspace.register_action(Editor::new_file_vertical);
312 workspace.register_action(Editor::new_file_horizontal);
313 },
314 )
315 .detach();
316
317 cx.on_action(move |_: &workspace::NewFile, cx| {
318 let app_state = workspace::AppState::global(cx);
319 if let Some(app_state) = app_state.upgrade() {
320 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
321 Editor::new_file(workspace, &Default::default(), cx)
322 })
323 .detach();
324 }
325 });
326 cx.on_action(move |_: &workspace::NewWindow, cx| {
327 let app_state = workspace::AppState::global(cx);
328 if let Some(app_state) = app_state.upgrade() {
329 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
330 Editor::new_file(workspace, &Default::default(), cx)
331 })
332 .detach();
333 }
334 });
335}
336
337pub struct SearchWithinRange;
338
339trait InvalidationRegion {
340 fn ranges(&self) -> &[Range<Anchor>];
341}
342
343#[derive(Clone, Debug, PartialEq)]
344pub enum SelectPhase {
345 Begin {
346 position: DisplayPoint,
347 add: bool,
348 click_count: usize,
349 },
350 BeginColumnar {
351 position: DisplayPoint,
352 reset: bool,
353 goal_column: u32,
354 },
355 Extend {
356 position: DisplayPoint,
357 click_count: usize,
358 },
359 Update {
360 position: DisplayPoint,
361 goal_column: u32,
362 scroll_delta: gpui::Point<f32>,
363 },
364 End,
365}
366
367#[derive(Clone, Debug)]
368pub enum SelectMode {
369 Character,
370 Word(Range<Anchor>),
371 Line(Range<Anchor>),
372 All,
373}
374
375#[derive(Copy, Clone, PartialEq, Eq, Debug)]
376pub enum EditorMode {
377 SingleLine { auto_width: bool },
378 AutoHeight { max_lines: usize },
379 Full,
380}
381
382#[derive(Copy, Clone, Debug)]
383pub enum SoftWrap {
384 /// Prefer not to wrap at all.
385 ///
386 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
387 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
388 GitDiff,
389 /// Prefer a single line generally, unless an overly long line is encountered.
390 None,
391 /// Soft wrap lines that exceed the editor width.
392 EditorWidth,
393 /// Soft wrap lines at the preferred line length.
394 Column(u32),
395 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
396 Bounded(u32),
397}
398
399#[derive(Clone)]
400pub struct EditorStyle {
401 pub background: Hsla,
402 pub local_player: PlayerColor,
403 pub text: TextStyle,
404 pub scrollbar_width: Pixels,
405 pub syntax: Arc<SyntaxTheme>,
406 pub status: StatusColors,
407 pub inlay_hints_style: HighlightStyle,
408 pub suggestions_style: HighlightStyle,
409 pub unnecessary_code_fade: f32,
410}
411
412impl Default for EditorStyle {
413 fn default() -> Self {
414 Self {
415 background: Hsla::default(),
416 local_player: PlayerColor::default(),
417 text: TextStyle::default(),
418 scrollbar_width: Pixels::default(),
419 syntax: Default::default(),
420 // HACK: Status colors don't have a real default.
421 // We should look into removing the status colors from the editor
422 // style and retrieve them directly from the theme.
423 status: StatusColors::dark(),
424 inlay_hints_style: HighlightStyle::default(),
425 suggestions_style: HighlightStyle::default(),
426 unnecessary_code_fade: Default::default(),
427 }
428 }
429}
430
431pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
432 let show_background = all_language_settings(None, cx)
433 .language(None)
434 .inlay_hints
435 .show_background;
436
437 HighlightStyle {
438 color: Some(cx.theme().status().hint),
439 background_color: show_background.then(|| cx.theme().status().hint_background),
440 ..HighlightStyle::default()
441 }
442}
443
444type CompletionId = usize;
445
446#[derive(Clone, Debug)]
447struct CompletionState {
448 // render_inlay_ids represents the inlay hints that are inserted
449 // for rendering the inline completions. They may be discontinuous
450 // in the event that the completion provider returns some intersection
451 // with the existing content.
452 render_inlay_ids: Vec<InlayId>,
453 // text is the resulting rope that is inserted when the user accepts a completion.
454 text: Rope,
455 // position is the position of the cursor when the completion was triggered.
456 position: multi_buffer::Anchor,
457 // delete_range is the range of text that this completion state covers.
458 // if the completion is accepted, this range should be deleted.
459 delete_range: Option<Range<multi_buffer::Anchor>>,
460}
461
462#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
463struct EditorActionId(usize);
464
465impl EditorActionId {
466 pub fn post_inc(&mut self) -> Self {
467 let answer = self.0;
468
469 *self = Self(answer + 1);
470
471 Self(answer)
472 }
473}
474
475// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
476// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
477
478type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
479type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
480
481#[derive(Default)]
482struct ScrollbarMarkerState {
483 scrollbar_size: Size<Pixels>,
484 dirty: bool,
485 markers: Arc<[PaintQuad]>,
486 pending_refresh: Option<Task<Result<()>>>,
487}
488
489impl ScrollbarMarkerState {
490 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
491 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
492 }
493}
494
495#[derive(Clone, Debug)]
496struct RunnableTasks {
497 templates: Vec<(TaskSourceKind, TaskTemplate)>,
498 offset: MultiBufferOffset,
499 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
500 column: u32,
501 // Values of all named captures, including those starting with '_'
502 extra_variables: HashMap<String, String>,
503 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
504 context_range: Range<BufferOffset>,
505}
506
507#[derive(Clone)]
508struct ResolvedTasks {
509 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
510 position: Anchor,
511}
512#[derive(Copy, Clone, Debug)]
513struct MultiBufferOffset(usize);
514#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
515struct BufferOffset(usize);
516
517// Addons allow storing per-editor state in other crates (e.g. Vim)
518pub trait Addon: 'static {
519 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
520
521 fn to_any(&self) -> &dyn std::any::Any;
522}
523
524/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
525///
526/// See the [module level documentation](self) for more information.
527pub struct Editor {
528 focus_handle: FocusHandle,
529 last_focused_descendant: Option<WeakFocusHandle>,
530 /// The text buffer being edited
531 buffer: Model<MultiBuffer>,
532 /// Map of how text in the buffer should be displayed.
533 /// Handles soft wraps, folds, fake inlay text insertions, etc.
534 pub display_map: Model<DisplayMap>,
535 pub selections: SelectionsCollection,
536 pub scroll_manager: ScrollManager,
537 /// When inline assist editors are linked, they all render cursors because
538 /// typing enters text into each of them, even the ones that aren't focused.
539 pub(crate) show_cursor_when_unfocused: bool,
540 columnar_selection_tail: Option<Anchor>,
541 add_selections_state: Option<AddSelectionsState>,
542 select_next_state: Option<SelectNextState>,
543 select_prev_state: Option<SelectNextState>,
544 selection_history: SelectionHistory,
545 autoclose_regions: Vec<AutocloseRegion>,
546 snippet_stack: InvalidationStack<SnippetState>,
547 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
548 ime_transaction: Option<TransactionId>,
549 active_diagnostics: Option<ActiveDiagnosticGroup>,
550 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
551 project: Option<Model<Project>>,
552 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
553 completion_provider: Option<Box<dyn CompletionProvider>>,
554 collaboration_hub: Option<Box<dyn CollaborationHub>>,
555 blink_manager: Model<BlinkManager>,
556 show_cursor_names: bool,
557 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
558 pub show_local_selections: bool,
559 mode: EditorMode,
560 show_breadcrumbs: bool,
561 show_gutter: bool,
562 show_line_numbers: Option<bool>,
563 use_relative_line_numbers: Option<bool>,
564 show_git_diff_gutter: Option<bool>,
565 show_code_actions: Option<bool>,
566 show_runnables: Option<bool>,
567 show_wrap_guides: Option<bool>,
568 show_indent_guides: Option<bool>,
569 placeholder_text: Option<Arc<str>>,
570 highlight_order: usize,
571 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
572 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
573 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
574 scrollbar_marker_state: ScrollbarMarkerState,
575 active_indent_guides_state: ActiveIndentGuidesState,
576 nav_history: Option<ItemNavHistory>,
577 context_menu: RwLock<Option<ContextMenu>>,
578 mouse_context_menu: Option<MouseContextMenu>,
579 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
580 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
581 signature_help_state: SignatureHelpState,
582 auto_signature_help: Option<bool>,
583 find_all_references_task_sources: Vec<Anchor>,
584 next_completion_id: CompletionId,
585 completion_documentation_pre_resolve_debounce: DebouncedDelay,
586 available_code_actions: Option<(Location, Arc<[AvailableCodeAction]>)>,
587 code_actions_task: Option<Task<Result<()>>>,
588 document_highlights_task: Option<Task<()>>,
589 linked_editing_range_task: Option<Task<Option<()>>>,
590 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
591 pending_rename: Option<RenameState>,
592 searchable: bool,
593 cursor_shape: CursorShape,
594 current_line_highlight: Option<CurrentLineHighlight>,
595 collapse_matches: bool,
596 autoindent_mode: Option<AutoindentMode>,
597 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
598 input_enabled: bool,
599 use_modal_editing: bool,
600 read_only: bool,
601 leader_peer_id: Option<PeerId>,
602 remote_id: Option<ViewId>,
603 hover_state: HoverState,
604 gutter_hovered: bool,
605 hovered_link_state: Option<HoveredLinkState>,
606 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
607 code_action_providers: Vec<Arc<dyn CodeActionProvider>>,
608 active_inline_completion: Option<CompletionState>,
609 // enable_inline_completions is a switch that Vim can use to disable
610 // inline completions based on its mode.
611 enable_inline_completions: bool,
612 show_inline_completions_override: Option<bool>,
613 inlay_hint_cache: InlayHintCache,
614 expanded_hunks: ExpandedHunks,
615 next_inlay_id: usize,
616 _subscriptions: Vec<Subscription>,
617 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
618 gutter_dimensions: GutterDimensions,
619 style: Option<EditorStyle>,
620 next_editor_action_id: EditorActionId,
621 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
622 use_autoclose: bool,
623 use_auto_surround: bool,
624 auto_replace_emoji_shortcode: bool,
625 show_git_blame_gutter: bool,
626 show_git_blame_inline: bool,
627 show_git_blame_inline_delay_task: Option<Task<()>>,
628 git_blame_inline_enabled: bool,
629 serialize_dirty_buffers: bool,
630 show_selection_menu: Option<bool>,
631 blame: Option<Model<GitBlame>>,
632 blame_subscription: Option<Subscription>,
633 custom_context_menu: Option<
634 Box<
635 dyn 'static
636 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
637 >,
638 >,
639 last_bounds: Option<Bounds<Pixels>>,
640 expect_bounds_change: Option<Bounds<Pixels>>,
641 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
642 tasks_update_task: Option<Task<()>>,
643 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
644 file_header_size: u32,
645 breadcrumb_header: Option<String>,
646 focused_block: Option<FocusedBlock>,
647 next_scroll_position: NextScrollCursorCenterTopBottom,
648 addons: HashMap<TypeId, Box<dyn Addon>>,
649 _scroll_cursor_center_top_bottom_task: Task<()>,
650}
651
652#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
653enum NextScrollCursorCenterTopBottom {
654 #[default]
655 Center,
656 Top,
657 Bottom,
658}
659
660impl NextScrollCursorCenterTopBottom {
661 fn next(&self) -> Self {
662 match self {
663 Self::Center => Self::Top,
664 Self::Top => Self::Bottom,
665 Self::Bottom => Self::Center,
666 }
667 }
668}
669
670#[derive(Clone)]
671pub struct EditorSnapshot {
672 pub mode: EditorMode,
673 show_gutter: bool,
674 show_line_numbers: Option<bool>,
675 show_git_diff_gutter: Option<bool>,
676 show_code_actions: Option<bool>,
677 show_runnables: Option<bool>,
678 git_blame_gutter_max_author_length: Option<usize>,
679 pub display_snapshot: DisplaySnapshot,
680 pub placeholder_text: Option<Arc<str>>,
681 is_focused: bool,
682 scroll_anchor: ScrollAnchor,
683 ongoing_scroll: OngoingScroll,
684 current_line_highlight: CurrentLineHighlight,
685 gutter_hovered: bool,
686}
687
688const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
689
690#[derive(Default, Debug, Clone, Copy)]
691pub struct GutterDimensions {
692 pub left_padding: Pixels,
693 pub right_padding: Pixels,
694 pub width: Pixels,
695 pub margin: Pixels,
696 pub git_blame_entries_width: Option<Pixels>,
697}
698
699impl GutterDimensions {
700 /// The full width of the space taken up by the gutter.
701 pub fn full_width(&self) -> Pixels {
702 self.margin + self.width
703 }
704
705 /// The width of the space reserved for the fold indicators,
706 /// use alongside 'justify_end' and `gutter_width` to
707 /// right align content with the line numbers
708 pub fn fold_area_width(&self) -> Pixels {
709 self.margin + self.right_padding
710 }
711}
712
713#[derive(Debug)]
714pub struct RemoteSelection {
715 pub replica_id: ReplicaId,
716 pub selection: Selection<Anchor>,
717 pub cursor_shape: CursorShape,
718 pub peer_id: PeerId,
719 pub line_mode: bool,
720 pub participant_index: Option<ParticipantIndex>,
721 pub user_name: Option<SharedString>,
722}
723
724#[derive(Clone, Debug)]
725struct SelectionHistoryEntry {
726 selections: Arc<[Selection<Anchor>]>,
727 select_next_state: Option<SelectNextState>,
728 select_prev_state: Option<SelectNextState>,
729 add_selections_state: Option<AddSelectionsState>,
730}
731
732enum SelectionHistoryMode {
733 Normal,
734 Undoing,
735 Redoing,
736}
737
738#[derive(Clone, PartialEq, Eq, Hash)]
739struct HoveredCursor {
740 replica_id: u16,
741 selection_id: usize,
742}
743
744impl Default for SelectionHistoryMode {
745 fn default() -> Self {
746 Self::Normal
747 }
748}
749
750#[derive(Default)]
751struct SelectionHistory {
752 #[allow(clippy::type_complexity)]
753 selections_by_transaction:
754 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
755 mode: SelectionHistoryMode,
756 undo_stack: VecDeque<SelectionHistoryEntry>,
757 redo_stack: VecDeque<SelectionHistoryEntry>,
758}
759
760impl SelectionHistory {
761 fn insert_transaction(
762 &mut self,
763 transaction_id: TransactionId,
764 selections: Arc<[Selection<Anchor>]>,
765 ) {
766 self.selections_by_transaction
767 .insert(transaction_id, (selections, None));
768 }
769
770 #[allow(clippy::type_complexity)]
771 fn transaction(
772 &self,
773 transaction_id: TransactionId,
774 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
775 self.selections_by_transaction.get(&transaction_id)
776 }
777
778 #[allow(clippy::type_complexity)]
779 fn transaction_mut(
780 &mut self,
781 transaction_id: TransactionId,
782 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
783 self.selections_by_transaction.get_mut(&transaction_id)
784 }
785
786 fn push(&mut self, entry: SelectionHistoryEntry) {
787 if !entry.selections.is_empty() {
788 match self.mode {
789 SelectionHistoryMode::Normal => {
790 self.push_undo(entry);
791 self.redo_stack.clear();
792 }
793 SelectionHistoryMode::Undoing => self.push_redo(entry),
794 SelectionHistoryMode::Redoing => self.push_undo(entry),
795 }
796 }
797 }
798
799 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
800 if self
801 .undo_stack
802 .back()
803 .map_or(true, |e| e.selections != entry.selections)
804 {
805 self.undo_stack.push_back(entry);
806 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
807 self.undo_stack.pop_front();
808 }
809 }
810 }
811
812 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
813 if self
814 .redo_stack
815 .back()
816 .map_or(true, |e| e.selections != entry.selections)
817 {
818 self.redo_stack.push_back(entry);
819 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
820 self.redo_stack.pop_front();
821 }
822 }
823 }
824}
825
826struct RowHighlight {
827 index: usize,
828 range: Range<Anchor>,
829 color: Hsla,
830 should_autoscroll: bool,
831}
832
833#[derive(Clone, Debug)]
834struct AddSelectionsState {
835 above: bool,
836 stack: Vec<usize>,
837}
838
839#[derive(Clone)]
840struct SelectNextState {
841 query: AhoCorasick,
842 wordwise: bool,
843 done: bool,
844}
845
846impl std::fmt::Debug for SelectNextState {
847 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
848 f.debug_struct(std::any::type_name::<Self>())
849 .field("wordwise", &self.wordwise)
850 .field("done", &self.done)
851 .finish()
852 }
853}
854
855#[derive(Debug)]
856struct AutocloseRegion {
857 selection_id: usize,
858 range: Range<Anchor>,
859 pair: BracketPair,
860}
861
862#[derive(Debug)]
863struct SnippetState {
864 ranges: Vec<Vec<Range<Anchor>>>,
865 active_index: usize,
866}
867
868#[doc(hidden)]
869pub struct RenameState {
870 pub range: Range<Anchor>,
871 pub old_name: Arc<str>,
872 pub editor: View<Editor>,
873 block_id: CustomBlockId,
874}
875
876struct InvalidationStack<T>(Vec<T>);
877
878struct RegisteredInlineCompletionProvider {
879 provider: Arc<dyn InlineCompletionProviderHandle>,
880 _subscription: Subscription,
881}
882
883enum ContextMenu {
884 Completions(CompletionsMenu),
885 CodeActions(CodeActionsMenu),
886}
887
888impl ContextMenu {
889 fn select_first(
890 &mut self,
891 provider: Option<&dyn CompletionProvider>,
892 cx: &mut ViewContext<Editor>,
893 ) -> bool {
894 if self.visible() {
895 match self {
896 ContextMenu::Completions(menu) => menu.select_first(provider, cx),
897 ContextMenu::CodeActions(menu) => menu.select_first(cx),
898 }
899 true
900 } else {
901 false
902 }
903 }
904
905 fn select_prev(
906 &mut self,
907 provider: Option<&dyn CompletionProvider>,
908 cx: &mut ViewContext<Editor>,
909 ) -> bool {
910 if self.visible() {
911 match self {
912 ContextMenu::Completions(menu) => menu.select_prev(provider, cx),
913 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
914 }
915 true
916 } else {
917 false
918 }
919 }
920
921 fn select_next(
922 &mut self,
923 provider: Option<&dyn CompletionProvider>,
924 cx: &mut ViewContext<Editor>,
925 ) -> bool {
926 if self.visible() {
927 match self {
928 ContextMenu::Completions(menu) => menu.select_next(provider, cx),
929 ContextMenu::CodeActions(menu) => menu.select_next(cx),
930 }
931 true
932 } else {
933 false
934 }
935 }
936
937 fn select_last(
938 &mut self,
939 provider: Option<&dyn CompletionProvider>,
940 cx: &mut ViewContext<Editor>,
941 ) -> bool {
942 if self.visible() {
943 match self {
944 ContextMenu::Completions(menu) => menu.select_last(provider, cx),
945 ContextMenu::CodeActions(menu) => menu.select_last(cx),
946 }
947 true
948 } else {
949 false
950 }
951 }
952
953 fn visible(&self) -> bool {
954 match self {
955 ContextMenu::Completions(menu) => menu.visible(),
956 ContextMenu::CodeActions(menu) => menu.visible(),
957 }
958 }
959
960 fn render(
961 &self,
962 cursor_position: DisplayPoint,
963 style: &EditorStyle,
964 max_height: Pixels,
965 workspace: Option<WeakView<Workspace>>,
966 cx: &mut ViewContext<Editor>,
967 ) -> (ContextMenuOrigin, AnyElement) {
968 match self {
969 ContextMenu::Completions(menu) => (
970 ContextMenuOrigin::EditorPoint(cursor_position),
971 menu.render(style, max_height, workspace, cx),
972 ),
973 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
974 }
975 }
976}
977
978enum ContextMenuOrigin {
979 EditorPoint(DisplayPoint),
980 GutterIndicator(DisplayRow),
981}
982
983#[derive(Clone)]
984struct CompletionsMenu {
985 id: CompletionId,
986 sort_completions: bool,
987 initial_position: Anchor,
988 buffer: Model<Buffer>,
989 completions: Arc<RwLock<Box<[Completion]>>>,
990 match_candidates: Arc<[StringMatchCandidate]>,
991 matches: Arc<[StringMatch]>,
992 selected_item: usize,
993 scroll_handle: UniformListScrollHandle,
994 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
995}
996
997impl CompletionsMenu {
998 fn select_first(
999 &mut self,
1000 provider: Option<&dyn CompletionProvider>,
1001 cx: &mut ViewContext<Editor>,
1002 ) {
1003 self.selected_item = 0;
1004 self.scroll_handle.scroll_to_item(self.selected_item);
1005 self.attempt_resolve_selected_completion_documentation(provider, cx);
1006 cx.notify();
1007 }
1008
1009 fn select_prev(
1010 &mut self,
1011 provider: Option<&dyn CompletionProvider>,
1012 cx: &mut ViewContext<Editor>,
1013 ) {
1014 if self.selected_item > 0 {
1015 self.selected_item -= 1;
1016 } else {
1017 self.selected_item = self.matches.len() - 1;
1018 }
1019 self.scroll_handle.scroll_to_item(self.selected_item);
1020 self.attempt_resolve_selected_completion_documentation(provider, cx);
1021 cx.notify();
1022 }
1023
1024 fn select_next(
1025 &mut self,
1026 provider: Option<&dyn CompletionProvider>,
1027 cx: &mut ViewContext<Editor>,
1028 ) {
1029 if self.selected_item + 1 < self.matches.len() {
1030 self.selected_item += 1;
1031 } else {
1032 self.selected_item = 0;
1033 }
1034 self.scroll_handle.scroll_to_item(self.selected_item);
1035 self.attempt_resolve_selected_completion_documentation(provider, cx);
1036 cx.notify();
1037 }
1038
1039 fn select_last(
1040 &mut self,
1041 provider: Option<&dyn CompletionProvider>,
1042 cx: &mut ViewContext<Editor>,
1043 ) {
1044 self.selected_item = self.matches.len() - 1;
1045 self.scroll_handle.scroll_to_item(self.selected_item);
1046 self.attempt_resolve_selected_completion_documentation(provider, cx);
1047 cx.notify();
1048 }
1049
1050 fn pre_resolve_completion_documentation(
1051 buffer: Model<Buffer>,
1052 completions: Arc<RwLock<Box<[Completion]>>>,
1053 matches: Arc<[StringMatch]>,
1054 editor: &Editor,
1055 cx: &mut ViewContext<Editor>,
1056 ) -> Task<()> {
1057 let settings = EditorSettings::get_global(cx);
1058 if !settings.show_completion_documentation {
1059 return Task::ready(());
1060 }
1061
1062 let Some(provider) = editor.completion_provider.as_ref() else {
1063 return Task::ready(());
1064 };
1065
1066 let resolve_task = provider.resolve_completions(
1067 buffer,
1068 matches.iter().map(|m| m.candidate_id).collect(),
1069 completions.clone(),
1070 cx,
1071 );
1072
1073 cx.spawn(move |this, mut cx| async move {
1074 if let Some(true) = resolve_task.await.log_err() {
1075 this.update(&mut cx, |_, cx| cx.notify()).ok();
1076 }
1077 })
1078 }
1079
1080 fn attempt_resolve_selected_completion_documentation(
1081 &mut self,
1082 provider: Option<&dyn CompletionProvider>,
1083 cx: &mut ViewContext<Editor>,
1084 ) {
1085 let settings = EditorSettings::get_global(cx);
1086 if !settings.show_completion_documentation {
1087 return;
1088 }
1089
1090 let completion_index = self.matches[self.selected_item].candidate_id;
1091 let Some(provider) = provider else {
1092 return;
1093 };
1094
1095 let resolve_task = provider.resolve_completions(
1096 self.buffer.clone(),
1097 vec![completion_index],
1098 self.completions.clone(),
1099 cx,
1100 );
1101
1102 let delay_ms =
1103 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1104 let delay = Duration::from_millis(delay_ms);
1105
1106 self.selected_completion_documentation_resolve_debounce
1107 .lock()
1108 .fire_new(delay, cx, |_, cx| {
1109 cx.spawn(move |this, mut cx| async move {
1110 if let Some(true) = resolve_task.await.log_err() {
1111 this.update(&mut cx, |_, cx| cx.notify()).ok();
1112 }
1113 })
1114 });
1115 }
1116
1117 fn visible(&self) -> bool {
1118 !self.matches.is_empty()
1119 }
1120
1121 fn render(
1122 &self,
1123 style: &EditorStyle,
1124 max_height: Pixels,
1125 workspace: Option<WeakView<Workspace>>,
1126 cx: &mut ViewContext<Editor>,
1127 ) -> AnyElement {
1128 let settings = EditorSettings::get_global(cx);
1129 let show_completion_documentation = settings.show_completion_documentation;
1130
1131 let widest_completion_ix = self
1132 .matches
1133 .iter()
1134 .enumerate()
1135 .max_by_key(|(_, mat)| {
1136 let completions = self.completions.read();
1137 let completion = &completions[mat.candidate_id];
1138 let documentation = &completion.documentation;
1139
1140 let mut len = completion.label.text.chars().count();
1141 if let Some(Documentation::SingleLine(text)) = documentation {
1142 if show_completion_documentation {
1143 len += text.chars().count();
1144 }
1145 }
1146
1147 len
1148 })
1149 .map(|(ix, _)| ix);
1150
1151 let completions = self.completions.clone();
1152 let matches = self.matches.clone();
1153 let selected_item = self.selected_item;
1154 let style = style.clone();
1155
1156 let multiline_docs = if show_completion_documentation {
1157 let mat = &self.matches[selected_item];
1158 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1159 Some(Documentation::MultiLinePlainText(text)) => {
1160 Some(div().child(SharedString::from(text.clone())))
1161 }
1162 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1163 Some(div().child(render_parsed_markdown(
1164 "completions_markdown",
1165 parsed,
1166 &style,
1167 workspace,
1168 cx,
1169 )))
1170 }
1171 _ => None,
1172 };
1173 multiline_docs.map(|div| {
1174 div.id("multiline_docs")
1175 .max_h(max_height)
1176 .flex_1()
1177 .px_1p5()
1178 .py_1()
1179 .min_w(px(260.))
1180 .max_w(px(640.))
1181 .w(px(500.))
1182 .overflow_y_scroll()
1183 .occlude()
1184 })
1185 } else {
1186 None
1187 };
1188
1189 let list = uniform_list(
1190 cx.view().clone(),
1191 "completions",
1192 matches.len(),
1193 move |_editor, range, cx| {
1194 let start_ix = range.start;
1195 let completions_guard = completions.read();
1196
1197 matches[range]
1198 .iter()
1199 .enumerate()
1200 .map(|(ix, mat)| {
1201 let item_ix = start_ix + ix;
1202 let candidate_id = mat.candidate_id;
1203 let completion = &completions_guard[candidate_id];
1204
1205 let documentation = if show_completion_documentation {
1206 &completion.documentation
1207 } else {
1208 &None
1209 };
1210
1211 let highlights = gpui::combine_highlights(
1212 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1213 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1214 |(range, mut highlight)| {
1215 // Ignore font weight for syntax highlighting, as we'll use it
1216 // for fuzzy matches.
1217 highlight.font_weight = None;
1218
1219 if completion.lsp_completion.deprecated.unwrap_or(false) {
1220 highlight.strikethrough = Some(StrikethroughStyle {
1221 thickness: 1.0.into(),
1222 ..Default::default()
1223 });
1224 highlight.color = Some(cx.theme().colors().text_muted);
1225 }
1226
1227 (range, highlight)
1228 },
1229 ),
1230 );
1231 let completion_label = StyledText::new(completion.label.text.clone())
1232 .with_highlights(&style.text, highlights);
1233 let documentation_label =
1234 if let Some(Documentation::SingleLine(text)) = documentation {
1235 if text.trim().is_empty() {
1236 None
1237 } else {
1238 Some(
1239 Label::new(text.clone())
1240 .ml_4()
1241 .size(LabelSize::Small)
1242 .color(Color::Muted),
1243 )
1244 }
1245 } else {
1246 None
1247 };
1248
1249 let color_swatch = completion
1250 .color()
1251 .map(|color| div().size_4().bg(color).rounded_sm());
1252
1253 div().min_w(px(220.)).max_w(px(540.)).child(
1254 ListItem::new(mat.candidate_id)
1255 .inset(true)
1256 .selected(item_ix == selected_item)
1257 .on_click(cx.listener(move |editor, _event, cx| {
1258 cx.stop_propagation();
1259 if let Some(task) = editor.confirm_completion(
1260 &ConfirmCompletion {
1261 item_ix: Some(item_ix),
1262 },
1263 cx,
1264 ) {
1265 task.detach_and_log_err(cx)
1266 }
1267 }))
1268 .start_slot::<Div>(color_swatch)
1269 .child(h_flex().overflow_hidden().child(completion_label))
1270 .end_slot::<Label>(documentation_label),
1271 )
1272 })
1273 .collect()
1274 },
1275 )
1276 .occlude()
1277 .max_h(max_height)
1278 .track_scroll(self.scroll_handle.clone())
1279 .with_width_from_item(widest_completion_ix)
1280 .with_sizing_behavior(ListSizingBehavior::Infer);
1281
1282 Popover::new()
1283 .child(list)
1284 .when_some(multiline_docs, |popover, multiline_docs| {
1285 popover.aside(multiline_docs)
1286 })
1287 .into_any_element()
1288 }
1289
1290 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1291 let mut matches = if let Some(query) = query {
1292 fuzzy::match_strings(
1293 &self.match_candidates,
1294 query,
1295 query.chars().any(|c| c.is_uppercase()),
1296 100,
1297 &Default::default(),
1298 executor,
1299 )
1300 .await
1301 } else {
1302 self.match_candidates
1303 .iter()
1304 .enumerate()
1305 .map(|(candidate_id, candidate)| StringMatch {
1306 candidate_id,
1307 score: Default::default(),
1308 positions: Default::default(),
1309 string: candidate.string.clone(),
1310 })
1311 .collect()
1312 };
1313
1314 // Remove all candidates where the query's start does not match the start of any word in the candidate
1315 if let Some(query) = query {
1316 if let Some(query_start) = query.chars().next() {
1317 matches.retain(|string_match| {
1318 split_words(&string_match.string).any(|word| {
1319 // Check that the first codepoint of the word as lowercase matches the first
1320 // codepoint of the query as lowercase
1321 word.chars()
1322 .flat_map(|codepoint| codepoint.to_lowercase())
1323 .zip(query_start.to_lowercase())
1324 .all(|(word_cp, query_cp)| word_cp == query_cp)
1325 })
1326 });
1327 }
1328 }
1329
1330 let completions = self.completions.read();
1331 if self.sort_completions {
1332 matches.sort_unstable_by_key(|mat| {
1333 // We do want to strike a balance here between what the language server tells us
1334 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1335 // `Creat` and there is a local variable called `CreateComponent`).
1336 // So what we do is: we bucket all matches into two buckets
1337 // - Strong matches
1338 // - Weak matches
1339 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1340 // and the Weak matches are the rest.
1341 //
1342 // For the strong matches, we sort by the language-servers score first and for the weak
1343 // matches, we prefer our fuzzy finder first.
1344 //
1345 // The thinking behind that: it's useless to take the sort_text the language-server gives
1346 // us into account when it's obviously a bad match.
1347
1348 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1349 enum MatchScore<'a> {
1350 Strong {
1351 sort_text: Option<&'a str>,
1352 score: Reverse<OrderedFloat<f64>>,
1353 sort_key: (usize, &'a str),
1354 },
1355 Weak {
1356 score: Reverse<OrderedFloat<f64>>,
1357 sort_text: Option<&'a str>,
1358 sort_key: (usize, &'a str),
1359 },
1360 }
1361
1362 let completion = &completions[mat.candidate_id];
1363 let sort_key = completion.sort_key();
1364 let sort_text = completion.lsp_completion.sort_text.as_deref();
1365 let score = Reverse(OrderedFloat(mat.score));
1366
1367 if mat.score >= 0.2 {
1368 MatchScore::Strong {
1369 sort_text,
1370 score,
1371 sort_key,
1372 }
1373 } else {
1374 MatchScore::Weak {
1375 score,
1376 sort_text,
1377 sort_key,
1378 }
1379 }
1380 });
1381 }
1382
1383 for mat in &mut matches {
1384 let completion = &completions[mat.candidate_id];
1385 mat.string.clone_from(&completion.label.text);
1386 for position in &mut mat.positions {
1387 *position += completion.label.filter_range.start;
1388 }
1389 }
1390 drop(completions);
1391
1392 self.matches = matches.into();
1393 self.selected_item = 0;
1394 }
1395}
1396
1397struct AvailableCodeAction {
1398 excerpt_id: ExcerptId,
1399 action: CodeAction,
1400 provider: Arc<dyn CodeActionProvider>,
1401}
1402
1403#[derive(Clone)]
1404struct CodeActionContents {
1405 tasks: Option<Arc<ResolvedTasks>>,
1406 actions: Option<Arc<[AvailableCodeAction]>>,
1407}
1408
1409impl CodeActionContents {
1410 fn len(&self) -> usize {
1411 match (&self.tasks, &self.actions) {
1412 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1413 (Some(tasks), None) => tasks.templates.len(),
1414 (None, Some(actions)) => actions.len(),
1415 (None, None) => 0,
1416 }
1417 }
1418
1419 fn is_empty(&self) -> bool {
1420 match (&self.tasks, &self.actions) {
1421 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1422 (Some(tasks), None) => tasks.templates.is_empty(),
1423 (None, Some(actions)) => actions.is_empty(),
1424 (None, None) => true,
1425 }
1426 }
1427
1428 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1429 self.tasks
1430 .iter()
1431 .flat_map(|tasks| {
1432 tasks
1433 .templates
1434 .iter()
1435 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1436 })
1437 .chain(self.actions.iter().flat_map(|actions| {
1438 actions.iter().map(|available| CodeActionsItem::CodeAction {
1439 excerpt_id: available.excerpt_id,
1440 action: available.action.clone(),
1441 provider: available.provider.clone(),
1442 })
1443 }))
1444 }
1445 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1446 match (&self.tasks, &self.actions) {
1447 (Some(tasks), Some(actions)) => {
1448 if index < tasks.templates.len() {
1449 tasks
1450 .templates
1451 .get(index)
1452 .cloned()
1453 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1454 } else {
1455 actions.get(index - tasks.templates.len()).map(|available| {
1456 CodeActionsItem::CodeAction {
1457 excerpt_id: available.excerpt_id,
1458 action: available.action.clone(),
1459 provider: available.provider.clone(),
1460 }
1461 })
1462 }
1463 }
1464 (Some(tasks), None) => tasks
1465 .templates
1466 .get(index)
1467 .cloned()
1468 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1469 (None, Some(actions)) => {
1470 actions
1471 .get(index)
1472 .map(|available| CodeActionsItem::CodeAction {
1473 excerpt_id: available.excerpt_id,
1474 action: available.action.clone(),
1475 provider: available.provider.clone(),
1476 })
1477 }
1478 (None, None) => None,
1479 }
1480 }
1481}
1482
1483#[allow(clippy::large_enum_variant)]
1484#[derive(Clone)]
1485enum CodeActionsItem {
1486 Task(TaskSourceKind, ResolvedTask),
1487 CodeAction {
1488 excerpt_id: ExcerptId,
1489 action: CodeAction,
1490 provider: Arc<dyn CodeActionProvider>,
1491 },
1492}
1493
1494impl CodeActionsItem {
1495 fn as_task(&self) -> Option<&ResolvedTask> {
1496 let Self::Task(_, task) = self else {
1497 return None;
1498 };
1499 Some(task)
1500 }
1501 fn as_code_action(&self) -> Option<&CodeAction> {
1502 let Self::CodeAction { action, .. } = self else {
1503 return None;
1504 };
1505 Some(action)
1506 }
1507 fn label(&self) -> String {
1508 match self {
1509 Self::CodeAction { action, .. } => action.lsp_action.title.clone(),
1510 Self::Task(_, task) => task.resolved_label.clone(),
1511 }
1512 }
1513}
1514
1515struct CodeActionsMenu {
1516 actions: CodeActionContents,
1517 buffer: Model<Buffer>,
1518 selected_item: usize,
1519 scroll_handle: UniformListScrollHandle,
1520 deployed_from_indicator: Option<DisplayRow>,
1521}
1522
1523impl CodeActionsMenu {
1524 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1525 self.selected_item = 0;
1526 self.scroll_handle.scroll_to_item(self.selected_item);
1527 cx.notify()
1528 }
1529
1530 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1531 if self.selected_item > 0 {
1532 self.selected_item -= 1;
1533 } else {
1534 self.selected_item = self.actions.len() - 1;
1535 }
1536 self.scroll_handle.scroll_to_item(self.selected_item);
1537 cx.notify();
1538 }
1539
1540 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1541 if self.selected_item + 1 < self.actions.len() {
1542 self.selected_item += 1;
1543 } else {
1544 self.selected_item = 0;
1545 }
1546 self.scroll_handle.scroll_to_item(self.selected_item);
1547 cx.notify();
1548 }
1549
1550 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1551 self.selected_item = self.actions.len() - 1;
1552 self.scroll_handle.scroll_to_item(self.selected_item);
1553 cx.notify()
1554 }
1555
1556 fn visible(&self) -> bool {
1557 !self.actions.is_empty()
1558 }
1559
1560 fn render(
1561 &self,
1562 cursor_position: DisplayPoint,
1563 _style: &EditorStyle,
1564 max_height: Pixels,
1565 cx: &mut ViewContext<Editor>,
1566 ) -> (ContextMenuOrigin, AnyElement) {
1567 let actions = self.actions.clone();
1568 let selected_item = self.selected_item;
1569 let element = uniform_list(
1570 cx.view().clone(),
1571 "code_actions_menu",
1572 self.actions.len(),
1573 move |_this, range, cx| {
1574 actions
1575 .iter()
1576 .skip(range.start)
1577 .take(range.end - range.start)
1578 .enumerate()
1579 .map(|(ix, action)| {
1580 let item_ix = range.start + ix;
1581 let selected = selected_item == item_ix;
1582 let colors = cx.theme().colors();
1583 div()
1584 .px_1()
1585 .rounded_md()
1586 .text_color(colors.text)
1587 .when(selected, |style| {
1588 style
1589 .bg(colors.element_active)
1590 .text_color(colors.text_accent)
1591 })
1592 .hover(|style| {
1593 style
1594 .bg(colors.element_hover)
1595 .text_color(colors.text_accent)
1596 })
1597 .whitespace_nowrap()
1598 .when_some(action.as_code_action(), |this, action| {
1599 this.on_mouse_down(
1600 MouseButton::Left,
1601 cx.listener(move |editor, _, cx| {
1602 cx.stop_propagation();
1603 if let Some(task) = editor.confirm_code_action(
1604 &ConfirmCodeAction {
1605 item_ix: Some(item_ix),
1606 },
1607 cx,
1608 ) {
1609 task.detach_and_log_err(cx)
1610 }
1611 }),
1612 )
1613 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1614 .child(SharedString::from(action.lsp_action.title.clone()))
1615 })
1616 .when_some(action.as_task(), |this, task| {
1617 this.on_mouse_down(
1618 MouseButton::Left,
1619 cx.listener(move |editor, _, cx| {
1620 cx.stop_propagation();
1621 if let Some(task) = editor.confirm_code_action(
1622 &ConfirmCodeAction {
1623 item_ix: Some(item_ix),
1624 },
1625 cx,
1626 ) {
1627 task.detach_and_log_err(cx)
1628 }
1629 }),
1630 )
1631 .child(SharedString::from(task.resolved_label.clone()))
1632 })
1633 })
1634 .collect()
1635 },
1636 )
1637 .elevation_1(cx)
1638 .p_1()
1639 .max_h(max_height)
1640 .occlude()
1641 .track_scroll(self.scroll_handle.clone())
1642 .with_width_from_item(
1643 self.actions
1644 .iter()
1645 .enumerate()
1646 .max_by_key(|(_, action)| match action {
1647 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1648 CodeActionsItem::CodeAction { action, .. } => {
1649 action.lsp_action.title.chars().count()
1650 }
1651 })
1652 .map(|(ix, _)| ix),
1653 )
1654 .with_sizing_behavior(ListSizingBehavior::Infer)
1655 .into_any_element();
1656
1657 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1658 ContextMenuOrigin::GutterIndicator(row)
1659 } else {
1660 ContextMenuOrigin::EditorPoint(cursor_position)
1661 };
1662
1663 (cursor_position, element)
1664 }
1665}
1666
1667#[derive(Debug)]
1668struct ActiveDiagnosticGroup {
1669 primary_range: Range<Anchor>,
1670 primary_message: String,
1671 group_id: usize,
1672 blocks: HashMap<CustomBlockId, Diagnostic>,
1673 is_valid: bool,
1674}
1675
1676#[derive(Serialize, Deserialize, Clone, Debug)]
1677pub struct ClipboardSelection {
1678 pub len: usize,
1679 pub is_entire_line: bool,
1680 pub first_line_indent: u32,
1681}
1682
1683#[derive(Debug)]
1684pub(crate) struct NavigationData {
1685 cursor_anchor: Anchor,
1686 cursor_position: Point,
1687 scroll_anchor: ScrollAnchor,
1688 scroll_top_row: u32,
1689}
1690
1691#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1692pub enum GotoDefinitionKind {
1693 Symbol,
1694 Declaration,
1695 Type,
1696 Implementation,
1697}
1698
1699#[derive(Debug, Clone)]
1700enum InlayHintRefreshReason {
1701 Toggle(bool),
1702 SettingsChange(InlayHintSettings),
1703 NewLinesShown,
1704 BufferEdited(HashSet<Arc<Language>>),
1705 RefreshRequested,
1706 ExcerptsRemoved(Vec<ExcerptId>),
1707}
1708
1709impl InlayHintRefreshReason {
1710 fn description(&self) -> &'static str {
1711 match self {
1712 Self::Toggle(_) => "toggle",
1713 Self::SettingsChange(_) => "settings change",
1714 Self::NewLinesShown => "new lines shown",
1715 Self::BufferEdited(_) => "buffer edited",
1716 Self::RefreshRequested => "refresh requested",
1717 Self::ExcerptsRemoved(_) => "excerpts removed",
1718 }
1719 }
1720}
1721
1722pub(crate) struct FocusedBlock {
1723 id: BlockId,
1724 focus_handle: WeakFocusHandle,
1725}
1726
1727impl Editor {
1728 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1729 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1730 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1731 Self::new(
1732 EditorMode::SingleLine { auto_width: false },
1733 buffer,
1734 None,
1735 false,
1736 cx,
1737 )
1738 }
1739
1740 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1741 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1742 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1743 Self::new(EditorMode::Full, buffer, None, false, cx)
1744 }
1745
1746 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1747 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1748 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1749 Self::new(
1750 EditorMode::SingleLine { auto_width: true },
1751 buffer,
1752 None,
1753 false,
1754 cx,
1755 )
1756 }
1757
1758 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1759 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1760 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1761 Self::new(
1762 EditorMode::AutoHeight { max_lines },
1763 buffer,
1764 None,
1765 false,
1766 cx,
1767 )
1768 }
1769
1770 pub fn for_buffer(
1771 buffer: Model<Buffer>,
1772 project: Option<Model<Project>>,
1773 cx: &mut ViewContext<Self>,
1774 ) -> Self {
1775 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1776 Self::new(EditorMode::Full, buffer, project, false, cx)
1777 }
1778
1779 pub fn for_multibuffer(
1780 buffer: Model<MultiBuffer>,
1781 project: Option<Model<Project>>,
1782 show_excerpt_controls: bool,
1783 cx: &mut ViewContext<Self>,
1784 ) -> Self {
1785 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1786 }
1787
1788 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1789 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1790 let mut clone = Self::new(
1791 self.mode,
1792 self.buffer.clone(),
1793 self.project.clone(),
1794 show_excerpt_controls,
1795 cx,
1796 );
1797 self.display_map.update(cx, |display_map, cx| {
1798 let snapshot = display_map.snapshot(cx);
1799 clone.display_map.update(cx, |display_map, cx| {
1800 display_map.set_state(&snapshot, cx);
1801 });
1802 });
1803 clone.selections.clone_state(&self.selections);
1804 clone.scroll_manager.clone_state(&self.scroll_manager);
1805 clone.searchable = self.searchable;
1806 clone
1807 }
1808
1809 pub fn new(
1810 mode: EditorMode,
1811 buffer: Model<MultiBuffer>,
1812 project: Option<Model<Project>>,
1813 show_excerpt_controls: bool,
1814 cx: &mut ViewContext<Self>,
1815 ) -> Self {
1816 let style = cx.text_style();
1817 let font_size = style.font_size.to_pixels(cx.rem_size());
1818 let editor = cx.view().downgrade();
1819 let fold_placeholder = FoldPlaceholder {
1820 constrain_width: true,
1821 render: Arc::new(move |fold_id, fold_range, cx| {
1822 let editor = editor.clone();
1823 div()
1824 .id(fold_id)
1825 .bg(cx.theme().colors().ghost_element_background)
1826 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1827 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1828 .rounded_sm()
1829 .size_full()
1830 .cursor_pointer()
1831 .child("⋯")
1832 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1833 .on_click(move |_, cx| {
1834 editor
1835 .update(cx, |editor, cx| {
1836 editor.unfold_ranges(
1837 [fold_range.start..fold_range.end],
1838 true,
1839 false,
1840 cx,
1841 );
1842 cx.stop_propagation();
1843 })
1844 .ok();
1845 })
1846 .into_any()
1847 }),
1848 merge_adjacent: true,
1849 };
1850 let file_header_size = if show_excerpt_controls { 3 } else { 2 };
1851 let display_map = cx.new_model(|cx| {
1852 DisplayMap::new(
1853 buffer.clone(),
1854 style.font(),
1855 font_size,
1856 None,
1857 show_excerpt_controls,
1858 file_header_size,
1859 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1860 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1861 fold_placeholder,
1862 cx,
1863 )
1864 });
1865
1866 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1867
1868 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1869
1870 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1871 .then(|| language_settings::SoftWrap::None);
1872
1873 let mut project_subscriptions = Vec::new();
1874 if mode == EditorMode::Full {
1875 if let Some(project) = project.as_ref() {
1876 if buffer.read(cx).is_singleton() {
1877 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1878 cx.emit(EditorEvent::TitleChanged);
1879 }));
1880 }
1881 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1882 if let project::Event::RefreshInlayHints = event {
1883 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1884 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1885 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1886 let focus_handle = editor.focus_handle(cx);
1887 if focus_handle.is_focused(cx) {
1888 let snapshot = buffer.read(cx).snapshot();
1889 for (range, snippet) in snippet_edits {
1890 let editor_range =
1891 language::range_from_lsp(*range).to_offset(&snapshot);
1892 editor
1893 .insert_snippet(&[editor_range], snippet.clone(), cx)
1894 .ok();
1895 }
1896 }
1897 }
1898 }
1899 }));
1900 if let Some(task_inventory) = project
1901 .read(cx)
1902 .task_store()
1903 .read(cx)
1904 .task_inventory()
1905 .cloned()
1906 {
1907 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1908 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1909 }));
1910 }
1911 }
1912 }
1913
1914 let inlay_hint_settings = inlay_hint_settings(
1915 selections.newest_anchor().head(),
1916 &buffer.read(cx).snapshot(cx),
1917 cx,
1918 );
1919 let focus_handle = cx.focus_handle();
1920 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1921 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1922 .detach();
1923 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1924 .detach();
1925 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1926
1927 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1928 Some(false)
1929 } else {
1930 None
1931 };
1932
1933 let mut code_action_providers = Vec::new();
1934 if let Some(project) = project.clone() {
1935 code_action_providers.push(Arc::new(project) as Arc<_>);
1936 }
1937
1938 let mut this = Self {
1939 focus_handle,
1940 show_cursor_when_unfocused: false,
1941 last_focused_descendant: None,
1942 buffer: buffer.clone(),
1943 display_map: display_map.clone(),
1944 selections,
1945 scroll_manager: ScrollManager::new(cx),
1946 columnar_selection_tail: None,
1947 add_selections_state: None,
1948 select_next_state: None,
1949 select_prev_state: None,
1950 selection_history: Default::default(),
1951 autoclose_regions: Default::default(),
1952 snippet_stack: Default::default(),
1953 select_larger_syntax_node_stack: Vec::new(),
1954 ime_transaction: Default::default(),
1955 active_diagnostics: None,
1956 soft_wrap_mode_override,
1957 completion_provider: project.clone().map(|project| Box::new(project) as _),
1958 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1959 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1960 project,
1961 blink_manager: blink_manager.clone(),
1962 show_local_selections: true,
1963 mode,
1964 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1965 show_gutter: mode == EditorMode::Full,
1966 show_line_numbers: None,
1967 use_relative_line_numbers: None,
1968 show_git_diff_gutter: None,
1969 show_code_actions: None,
1970 show_runnables: None,
1971 show_wrap_guides: None,
1972 show_indent_guides,
1973 placeholder_text: None,
1974 highlight_order: 0,
1975 highlighted_rows: HashMap::default(),
1976 background_highlights: Default::default(),
1977 gutter_highlights: TreeMap::default(),
1978 scrollbar_marker_state: ScrollbarMarkerState::default(),
1979 active_indent_guides_state: ActiveIndentGuidesState::default(),
1980 nav_history: None,
1981 context_menu: RwLock::new(None),
1982 mouse_context_menu: None,
1983 hunk_controls_menu_handle: PopoverMenuHandle::default(),
1984 completion_tasks: Default::default(),
1985 signature_help_state: SignatureHelpState::default(),
1986 auto_signature_help: None,
1987 find_all_references_task_sources: Vec::new(),
1988 next_completion_id: 0,
1989 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1990 next_inlay_id: 0,
1991 code_action_providers,
1992 available_code_actions: Default::default(),
1993 code_actions_task: Default::default(),
1994 document_highlights_task: Default::default(),
1995 linked_editing_range_task: Default::default(),
1996 pending_rename: Default::default(),
1997 searchable: true,
1998 cursor_shape: EditorSettings::get_global(cx)
1999 .cursor_shape
2000 .unwrap_or_default(),
2001 current_line_highlight: None,
2002 autoindent_mode: Some(AutoindentMode::EachLine),
2003 collapse_matches: false,
2004 workspace: None,
2005 input_enabled: true,
2006 use_modal_editing: mode == EditorMode::Full,
2007 read_only: false,
2008 use_autoclose: true,
2009 use_auto_surround: true,
2010 auto_replace_emoji_shortcode: false,
2011 leader_peer_id: None,
2012 remote_id: None,
2013 hover_state: Default::default(),
2014 hovered_link_state: Default::default(),
2015 inline_completion_provider: None,
2016 active_inline_completion: None,
2017 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
2018 expanded_hunks: ExpandedHunks::default(),
2019 gutter_hovered: false,
2020 pixel_position_of_newest_cursor: None,
2021 last_bounds: None,
2022 expect_bounds_change: None,
2023 gutter_dimensions: GutterDimensions::default(),
2024 style: None,
2025 show_cursor_names: false,
2026 hovered_cursors: Default::default(),
2027 next_editor_action_id: EditorActionId::default(),
2028 editor_actions: Rc::default(),
2029 show_inline_completions_override: None,
2030 enable_inline_completions: true,
2031 custom_context_menu: None,
2032 show_git_blame_gutter: false,
2033 show_git_blame_inline: false,
2034 show_selection_menu: None,
2035 show_git_blame_inline_delay_task: None,
2036 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
2037 serialize_dirty_buffers: ProjectSettings::get_global(cx)
2038 .session
2039 .restore_unsaved_buffers,
2040 blame: None,
2041 blame_subscription: None,
2042 file_header_size,
2043 tasks: Default::default(),
2044 _subscriptions: vec![
2045 cx.observe(&buffer, Self::on_buffer_changed),
2046 cx.subscribe(&buffer, Self::on_buffer_event),
2047 cx.observe(&display_map, Self::on_display_map_changed),
2048 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
2049 cx.observe_global::<SettingsStore>(Self::settings_changed),
2050 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
2051 cx.observe_window_activation(|editor, cx| {
2052 let active = cx.is_window_active();
2053 editor.blink_manager.update(cx, |blink_manager, cx| {
2054 if active {
2055 blink_manager.enable(cx);
2056 } else {
2057 blink_manager.disable(cx);
2058 }
2059 });
2060 }),
2061 ],
2062 tasks_update_task: None,
2063 linked_edit_ranges: Default::default(),
2064 previous_search_ranges: None,
2065 breadcrumb_header: None,
2066 focused_block: None,
2067 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
2068 addons: HashMap::default(),
2069 _scroll_cursor_center_top_bottom_task: Task::ready(()),
2070 };
2071 this.tasks_update_task = Some(this.refresh_runnables(cx));
2072 this._subscriptions.extend(project_subscriptions);
2073
2074 this.end_selection(cx);
2075 this.scroll_manager.show_scrollbar(cx);
2076
2077 if mode == EditorMode::Full {
2078 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
2079 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
2080
2081 if this.git_blame_inline_enabled {
2082 this.git_blame_inline_enabled = true;
2083 this.start_git_blame_inline(false, cx);
2084 }
2085 }
2086
2087 this.report_editor_event("open", None, cx);
2088 this
2089 }
2090
2091 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
2092 self.mouse_context_menu
2093 .as_ref()
2094 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
2095 }
2096
2097 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
2098 let mut key_context = KeyContext::new_with_defaults();
2099 key_context.add("Editor");
2100 let mode = match self.mode {
2101 EditorMode::SingleLine { .. } => "single_line",
2102 EditorMode::AutoHeight { .. } => "auto_height",
2103 EditorMode::Full => "full",
2104 };
2105
2106 if EditorSettings::jupyter_enabled(cx) {
2107 key_context.add("jupyter");
2108 }
2109
2110 key_context.set("mode", mode);
2111 if self.pending_rename.is_some() {
2112 key_context.add("renaming");
2113 }
2114 if self.context_menu_visible() {
2115 match self.context_menu.read().as_ref() {
2116 Some(ContextMenu::Completions(_)) => {
2117 key_context.add("menu");
2118 key_context.add("showing_completions")
2119 }
2120 Some(ContextMenu::CodeActions(_)) => {
2121 key_context.add("menu");
2122 key_context.add("showing_code_actions")
2123 }
2124 None => {}
2125 }
2126 }
2127
2128 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2129 if !self.focus_handle(cx).contains_focused(cx)
2130 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2131 {
2132 for addon in self.addons.values() {
2133 addon.extend_key_context(&mut key_context, cx)
2134 }
2135 }
2136
2137 if let Some(extension) = self
2138 .buffer
2139 .read(cx)
2140 .as_singleton()
2141 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2142 {
2143 key_context.set("extension", extension.to_string());
2144 }
2145
2146 if self.has_active_inline_completion(cx) {
2147 key_context.add("copilot_suggestion");
2148 key_context.add("inline_completion");
2149 }
2150
2151 key_context
2152 }
2153
2154 pub fn new_file(
2155 workspace: &mut Workspace,
2156 _: &workspace::NewFile,
2157 cx: &mut ViewContext<Workspace>,
2158 ) {
2159 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2160 "Failed to create buffer",
2161 cx,
2162 |e, _| match e.error_code() {
2163 ErrorCode::RemoteUpgradeRequired => Some(format!(
2164 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2165 e.error_tag("required").unwrap_or("the latest version")
2166 )),
2167 _ => None,
2168 },
2169 );
2170 }
2171
2172 pub fn new_in_workspace(
2173 workspace: &mut Workspace,
2174 cx: &mut ViewContext<Workspace>,
2175 ) -> Task<Result<View<Editor>>> {
2176 let project = workspace.project().clone();
2177 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2178
2179 cx.spawn(|workspace, mut cx| async move {
2180 let buffer = create.await?;
2181 workspace.update(&mut cx, |workspace, cx| {
2182 let editor =
2183 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2184 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2185 editor
2186 })
2187 })
2188 }
2189
2190 fn new_file_vertical(
2191 workspace: &mut Workspace,
2192 _: &workspace::NewFileSplitVertical,
2193 cx: &mut ViewContext<Workspace>,
2194 ) {
2195 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2196 }
2197
2198 fn new_file_horizontal(
2199 workspace: &mut Workspace,
2200 _: &workspace::NewFileSplitHorizontal,
2201 cx: &mut ViewContext<Workspace>,
2202 ) {
2203 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2204 }
2205
2206 fn new_file_in_direction(
2207 workspace: &mut Workspace,
2208 direction: SplitDirection,
2209 cx: &mut ViewContext<Workspace>,
2210 ) {
2211 let project = workspace.project().clone();
2212 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2213
2214 cx.spawn(|workspace, mut cx| async move {
2215 let buffer = create.await?;
2216 workspace.update(&mut cx, move |workspace, cx| {
2217 workspace.split_item(
2218 direction,
2219 Box::new(
2220 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2221 ),
2222 cx,
2223 )
2224 })?;
2225 anyhow::Ok(())
2226 })
2227 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2228 ErrorCode::RemoteUpgradeRequired => Some(format!(
2229 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2230 e.error_tag("required").unwrap_or("the latest version")
2231 )),
2232 _ => None,
2233 });
2234 }
2235
2236 pub fn leader_peer_id(&self) -> Option<PeerId> {
2237 self.leader_peer_id
2238 }
2239
2240 pub fn buffer(&self) -> &Model<MultiBuffer> {
2241 &self.buffer
2242 }
2243
2244 pub fn workspace(&self) -> Option<View<Workspace>> {
2245 self.workspace.as_ref()?.0.upgrade()
2246 }
2247
2248 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2249 self.buffer().read(cx).title(cx)
2250 }
2251
2252 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2253 let git_blame_gutter_max_author_length = self
2254 .render_git_blame_gutter(cx)
2255 .then(|| {
2256 if let Some(blame) = self.blame.as_ref() {
2257 let max_author_length =
2258 blame.update(cx, |blame, cx| blame.max_author_length(cx));
2259 Some(max_author_length)
2260 } else {
2261 None
2262 }
2263 })
2264 .flatten();
2265
2266 EditorSnapshot {
2267 mode: self.mode,
2268 show_gutter: self.show_gutter,
2269 show_line_numbers: self.show_line_numbers,
2270 show_git_diff_gutter: self.show_git_diff_gutter,
2271 show_code_actions: self.show_code_actions,
2272 show_runnables: self.show_runnables,
2273 git_blame_gutter_max_author_length,
2274 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2275 scroll_anchor: self.scroll_manager.anchor(),
2276 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2277 placeholder_text: self.placeholder_text.clone(),
2278 is_focused: self.focus_handle.is_focused(cx),
2279 current_line_highlight: self
2280 .current_line_highlight
2281 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2282 gutter_hovered: self.gutter_hovered,
2283 }
2284 }
2285
2286 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2287 self.buffer.read(cx).language_at(point, cx)
2288 }
2289
2290 pub fn file_at<T: ToOffset>(
2291 &self,
2292 point: T,
2293 cx: &AppContext,
2294 ) -> Option<Arc<dyn language::File>> {
2295 self.buffer.read(cx).read(cx).file_at(point).cloned()
2296 }
2297
2298 pub fn active_excerpt(
2299 &self,
2300 cx: &AppContext,
2301 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2302 self.buffer
2303 .read(cx)
2304 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2305 }
2306
2307 pub fn mode(&self) -> EditorMode {
2308 self.mode
2309 }
2310
2311 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2312 self.collaboration_hub.as_deref()
2313 }
2314
2315 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2316 self.collaboration_hub = Some(hub);
2317 }
2318
2319 pub fn set_custom_context_menu(
2320 &mut self,
2321 f: impl 'static
2322 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2323 ) {
2324 self.custom_context_menu = Some(Box::new(f))
2325 }
2326
2327 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
2328 self.completion_provider = provider;
2329 }
2330
2331 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
2332 self.semantics_provider.clone()
2333 }
2334
2335 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
2336 self.semantics_provider = provider;
2337 }
2338
2339 pub fn set_inline_completion_provider<T>(
2340 &mut self,
2341 provider: Option<Model<T>>,
2342 cx: &mut ViewContext<Self>,
2343 ) where
2344 T: InlineCompletionProvider,
2345 {
2346 self.inline_completion_provider =
2347 provider.map(|provider| RegisteredInlineCompletionProvider {
2348 _subscription: cx.observe(&provider, |this, _, cx| {
2349 if this.focus_handle.is_focused(cx) {
2350 this.update_visible_inline_completion(cx);
2351 }
2352 }),
2353 provider: Arc::new(provider),
2354 });
2355 self.refresh_inline_completion(false, false, cx);
2356 }
2357
2358 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2359 self.placeholder_text.as_deref()
2360 }
2361
2362 pub fn set_placeholder_text(
2363 &mut self,
2364 placeholder_text: impl Into<Arc<str>>,
2365 cx: &mut ViewContext<Self>,
2366 ) {
2367 let placeholder_text = Some(placeholder_text.into());
2368 if self.placeholder_text != placeholder_text {
2369 self.placeholder_text = placeholder_text;
2370 cx.notify();
2371 }
2372 }
2373
2374 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2375 self.cursor_shape = cursor_shape;
2376
2377 // Disrupt blink for immediate user feedback that the cursor shape has changed
2378 self.blink_manager.update(cx, BlinkManager::show_cursor);
2379
2380 cx.notify();
2381 }
2382
2383 pub fn set_current_line_highlight(
2384 &mut self,
2385 current_line_highlight: Option<CurrentLineHighlight>,
2386 ) {
2387 self.current_line_highlight = current_line_highlight;
2388 }
2389
2390 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2391 self.collapse_matches = collapse_matches;
2392 }
2393
2394 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2395 if self.collapse_matches {
2396 return range.start..range.start;
2397 }
2398 range.clone()
2399 }
2400
2401 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2402 if self.display_map.read(cx).clip_at_line_ends != clip {
2403 self.display_map
2404 .update(cx, |map, _| map.clip_at_line_ends = clip);
2405 }
2406 }
2407
2408 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2409 self.input_enabled = input_enabled;
2410 }
2411
2412 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2413 self.enable_inline_completions = enabled;
2414 }
2415
2416 pub fn set_autoindent(&mut self, autoindent: bool) {
2417 if autoindent {
2418 self.autoindent_mode = Some(AutoindentMode::EachLine);
2419 } else {
2420 self.autoindent_mode = None;
2421 }
2422 }
2423
2424 pub fn read_only(&self, cx: &AppContext) -> bool {
2425 self.read_only || self.buffer.read(cx).read_only()
2426 }
2427
2428 pub fn set_read_only(&mut self, read_only: bool) {
2429 self.read_only = read_only;
2430 }
2431
2432 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2433 self.use_autoclose = autoclose;
2434 }
2435
2436 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2437 self.use_auto_surround = auto_surround;
2438 }
2439
2440 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2441 self.auto_replace_emoji_shortcode = auto_replace;
2442 }
2443
2444 pub fn toggle_inline_completions(
2445 &mut self,
2446 _: &ToggleInlineCompletions,
2447 cx: &mut ViewContext<Self>,
2448 ) {
2449 if self.show_inline_completions_override.is_some() {
2450 self.set_show_inline_completions(None, cx);
2451 } else {
2452 let cursor = self.selections.newest_anchor().head();
2453 if let Some((buffer, cursor_buffer_position)) =
2454 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2455 {
2456 let show_inline_completions =
2457 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2458 self.set_show_inline_completions(Some(show_inline_completions), cx);
2459 }
2460 }
2461 }
2462
2463 pub fn set_show_inline_completions(
2464 &mut self,
2465 show_inline_completions: Option<bool>,
2466 cx: &mut ViewContext<Self>,
2467 ) {
2468 self.show_inline_completions_override = show_inline_completions;
2469 self.refresh_inline_completion(false, true, cx);
2470 }
2471
2472 fn should_show_inline_completions(
2473 &self,
2474 buffer: &Model<Buffer>,
2475 buffer_position: language::Anchor,
2476 cx: &AppContext,
2477 ) -> bool {
2478 if let Some(provider) = self.inline_completion_provider() {
2479 if let Some(show_inline_completions) = self.show_inline_completions_override {
2480 show_inline_completions
2481 } else {
2482 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2483 }
2484 } else {
2485 false
2486 }
2487 }
2488
2489 pub fn set_use_modal_editing(&mut self, to: bool) {
2490 self.use_modal_editing = to;
2491 }
2492
2493 pub fn use_modal_editing(&self) -> bool {
2494 self.use_modal_editing
2495 }
2496
2497 fn selections_did_change(
2498 &mut self,
2499 local: bool,
2500 old_cursor_position: &Anchor,
2501 show_completions: bool,
2502 cx: &mut ViewContext<Self>,
2503 ) {
2504 cx.invalidate_character_coordinates();
2505
2506 // Copy selections to primary selection buffer
2507 #[cfg(target_os = "linux")]
2508 if local {
2509 let selections = self.selections.all::<usize>(cx);
2510 let buffer_handle = self.buffer.read(cx).read(cx);
2511
2512 let mut text = String::new();
2513 for (index, selection) in selections.iter().enumerate() {
2514 let text_for_selection = buffer_handle
2515 .text_for_range(selection.start..selection.end)
2516 .collect::<String>();
2517
2518 text.push_str(&text_for_selection);
2519 if index != selections.len() - 1 {
2520 text.push('\n');
2521 }
2522 }
2523
2524 if !text.is_empty() {
2525 cx.write_to_primary(ClipboardItem::new_string(text));
2526 }
2527 }
2528
2529 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2530 self.buffer.update(cx, |buffer, cx| {
2531 buffer.set_active_selections(
2532 &self.selections.disjoint_anchors(),
2533 self.selections.line_mode,
2534 self.cursor_shape,
2535 cx,
2536 )
2537 });
2538 }
2539 let display_map = self
2540 .display_map
2541 .update(cx, |display_map, cx| display_map.snapshot(cx));
2542 let buffer = &display_map.buffer_snapshot;
2543 self.add_selections_state = None;
2544 self.select_next_state = None;
2545 self.select_prev_state = None;
2546 self.select_larger_syntax_node_stack.clear();
2547 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2548 self.snippet_stack
2549 .invalidate(&self.selections.disjoint_anchors(), buffer);
2550 self.take_rename(false, cx);
2551
2552 let new_cursor_position = self.selections.newest_anchor().head();
2553
2554 self.push_to_nav_history(
2555 *old_cursor_position,
2556 Some(new_cursor_position.to_point(buffer)),
2557 cx,
2558 );
2559
2560 if local {
2561 let new_cursor_position = self.selections.newest_anchor().head();
2562 let mut context_menu = self.context_menu.write();
2563 let completion_menu = match context_menu.as_ref() {
2564 Some(ContextMenu::Completions(menu)) => Some(menu),
2565
2566 _ => {
2567 *context_menu = None;
2568 None
2569 }
2570 };
2571
2572 if let Some(completion_menu) = completion_menu {
2573 let cursor_position = new_cursor_position.to_offset(buffer);
2574 let (word_range, kind) =
2575 buffer.surrounding_word(completion_menu.initial_position, true);
2576 if kind == Some(CharKind::Word)
2577 && word_range.to_inclusive().contains(&cursor_position)
2578 {
2579 let mut completion_menu = completion_menu.clone();
2580 drop(context_menu);
2581
2582 let query = Self::completion_query(buffer, cursor_position);
2583 cx.spawn(move |this, mut cx| async move {
2584 completion_menu
2585 .filter(query.as_deref(), cx.background_executor().clone())
2586 .await;
2587
2588 this.update(&mut cx, |this, cx| {
2589 let mut context_menu = this.context_menu.write();
2590 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2591 return;
2592 };
2593
2594 if menu.id > completion_menu.id {
2595 return;
2596 }
2597
2598 *context_menu = Some(ContextMenu::Completions(completion_menu));
2599 drop(context_menu);
2600 cx.notify();
2601 })
2602 })
2603 .detach();
2604
2605 if show_completions {
2606 self.show_completions(&ShowCompletions { trigger: None }, cx);
2607 }
2608 } else {
2609 drop(context_menu);
2610 self.hide_context_menu(cx);
2611 }
2612 } else {
2613 drop(context_menu);
2614 }
2615
2616 hide_hover(self, cx);
2617
2618 if old_cursor_position.to_display_point(&display_map).row()
2619 != new_cursor_position.to_display_point(&display_map).row()
2620 {
2621 self.available_code_actions.take();
2622 }
2623 self.refresh_code_actions(cx);
2624 self.refresh_document_highlights(cx);
2625 refresh_matching_bracket_highlights(self, cx);
2626 self.discard_inline_completion(false, cx);
2627 linked_editing_ranges::refresh_linked_ranges(self, cx);
2628 if self.git_blame_inline_enabled {
2629 self.start_inline_blame_timer(cx);
2630 }
2631 }
2632
2633 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2634 cx.emit(EditorEvent::SelectionsChanged { local });
2635
2636 if self.selections.disjoint_anchors().len() == 1 {
2637 cx.emit(SearchEvent::ActiveMatchChanged)
2638 }
2639 cx.notify();
2640 }
2641
2642 pub fn change_selections<R>(
2643 &mut self,
2644 autoscroll: Option<Autoscroll>,
2645 cx: &mut ViewContext<Self>,
2646 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2647 ) -> R {
2648 self.change_selections_inner(autoscroll, true, cx, change)
2649 }
2650
2651 pub fn change_selections_inner<R>(
2652 &mut self,
2653 autoscroll: Option<Autoscroll>,
2654 request_completions: bool,
2655 cx: &mut ViewContext<Self>,
2656 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2657 ) -> R {
2658 let old_cursor_position = self.selections.newest_anchor().head();
2659 self.push_to_selection_history();
2660
2661 let (changed, result) = self.selections.change_with(cx, change);
2662
2663 if changed {
2664 if let Some(autoscroll) = autoscroll {
2665 self.request_autoscroll(autoscroll, cx);
2666 }
2667 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2668
2669 if self.should_open_signature_help_automatically(
2670 &old_cursor_position,
2671 self.signature_help_state.backspace_pressed(),
2672 cx,
2673 ) {
2674 self.show_signature_help(&ShowSignatureHelp, cx);
2675 }
2676 self.signature_help_state.set_backspace_pressed(false);
2677 }
2678
2679 result
2680 }
2681
2682 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2683 where
2684 I: IntoIterator<Item = (Range<S>, T)>,
2685 S: ToOffset,
2686 T: Into<Arc<str>>,
2687 {
2688 if self.read_only(cx) {
2689 return;
2690 }
2691
2692 self.buffer
2693 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2694 }
2695
2696 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2697 where
2698 I: IntoIterator<Item = (Range<S>, T)>,
2699 S: ToOffset,
2700 T: Into<Arc<str>>,
2701 {
2702 if self.read_only(cx) {
2703 return;
2704 }
2705
2706 self.buffer.update(cx, |buffer, cx| {
2707 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2708 });
2709 }
2710
2711 pub fn edit_with_block_indent<I, S, T>(
2712 &mut self,
2713 edits: I,
2714 original_indent_columns: Vec<u32>,
2715 cx: &mut ViewContext<Self>,
2716 ) where
2717 I: IntoIterator<Item = (Range<S>, T)>,
2718 S: ToOffset,
2719 T: Into<Arc<str>>,
2720 {
2721 if self.read_only(cx) {
2722 return;
2723 }
2724
2725 self.buffer.update(cx, |buffer, cx| {
2726 buffer.edit(
2727 edits,
2728 Some(AutoindentMode::Block {
2729 original_indent_columns,
2730 }),
2731 cx,
2732 )
2733 });
2734 }
2735
2736 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2737 self.hide_context_menu(cx);
2738
2739 match phase {
2740 SelectPhase::Begin {
2741 position,
2742 add,
2743 click_count,
2744 } => self.begin_selection(position, add, click_count, cx),
2745 SelectPhase::BeginColumnar {
2746 position,
2747 goal_column,
2748 reset,
2749 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2750 SelectPhase::Extend {
2751 position,
2752 click_count,
2753 } => self.extend_selection(position, click_count, cx),
2754 SelectPhase::Update {
2755 position,
2756 goal_column,
2757 scroll_delta,
2758 } => self.update_selection(position, goal_column, scroll_delta, cx),
2759 SelectPhase::End => self.end_selection(cx),
2760 }
2761 }
2762
2763 fn extend_selection(
2764 &mut self,
2765 position: DisplayPoint,
2766 click_count: usize,
2767 cx: &mut ViewContext<Self>,
2768 ) {
2769 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2770 let tail = self.selections.newest::<usize>(cx).tail();
2771 self.begin_selection(position, false, click_count, cx);
2772
2773 let position = position.to_offset(&display_map, Bias::Left);
2774 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2775
2776 let mut pending_selection = self
2777 .selections
2778 .pending_anchor()
2779 .expect("extend_selection not called with pending selection");
2780 if position >= tail {
2781 pending_selection.start = tail_anchor;
2782 } else {
2783 pending_selection.end = tail_anchor;
2784 pending_selection.reversed = true;
2785 }
2786
2787 let mut pending_mode = self.selections.pending_mode().unwrap();
2788 match &mut pending_mode {
2789 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2790 _ => {}
2791 }
2792
2793 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2794 s.set_pending(pending_selection, pending_mode)
2795 });
2796 }
2797
2798 fn begin_selection(
2799 &mut self,
2800 position: DisplayPoint,
2801 add: bool,
2802 click_count: usize,
2803 cx: &mut ViewContext<Self>,
2804 ) {
2805 if !self.focus_handle.is_focused(cx) {
2806 self.last_focused_descendant = None;
2807 cx.focus(&self.focus_handle);
2808 }
2809
2810 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2811 let buffer = &display_map.buffer_snapshot;
2812 let newest_selection = self.selections.newest_anchor().clone();
2813 let position = display_map.clip_point(position, Bias::Left);
2814
2815 let start;
2816 let end;
2817 let mode;
2818 let auto_scroll;
2819 match click_count {
2820 1 => {
2821 start = buffer.anchor_before(position.to_point(&display_map));
2822 end = start;
2823 mode = SelectMode::Character;
2824 auto_scroll = true;
2825 }
2826 2 => {
2827 let range = movement::surrounding_word(&display_map, position);
2828 start = buffer.anchor_before(range.start.to_point(&display_map));
2829 end = buffer.anchor_before(range.end.to_point(&display_map));
2830 mode = SelectMode::Word(start..end);
2831 auto_scroll = true;
2832 }
2833 3 => {
2834 let position = display_map
2835 .clip_point(position, Bias::Left)
2836 .to_point(&display_map);
2837 let line_start = display_map.prev_line_boundary(position).0;
2838 let next_line_start = buffer.clip_point(
2839 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2840 Bias::Left,
2841 );
2842 start = buffer.anchor_before(line_start);
2843 end = buffer.anchor_before(next_line_start);
2844 mode = SelectMode::Line(start..end);
2845 auto_scroll = true;
2846 }
2847 _ => {
2848 start = buffer.anchor_before(0);
2849 end = buffer.anchor_before(buffer.len());
2850 mode = SelectMode::All;
2851 auto_scroll = false;
2852 }
2853 }
2854
2855 let point_to_delete: Option<usize> = {
2856 let selected_points: Vec<Selection<Point>> =
2857 self.selections.disjoint_in_range(start..end, cx);
2858
2859 if !add || click_count > 1 {
2860 None
2861 } else if !selected_points.is_empty() {
2862 Some(selected_points[0].id)
2863 } else {
2864 let clicked_point_already_selected =
2865 self.selections.disjoint.iter().find(|selection| {
2866 selection.start.to_point(buffer) == start.to_point(buffer)
2867 || selection.end.to_point(buffer) == end.to_point(buffer)
2868 });
2869
2870 clicked_point_already_selected.map(|selection| selection.id)
2871 }
2872 };
2873
2874 let selections_count = self.selections.count();
2875
2876 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2877 if let Some(point_to_delete) = point_to_delete {
2878 s.delete(point_to_delete);
2879
2880 if selections_count == 1 {
2881 s.set_pending_anchor_range(start..end, mode);
2882 }
2883 } else {
2884 if !add {
2885 s.clear_disjoint();
2886 } else if click_count > 1 {
2887 s.delete(newest_selection.id)
2888 }
2889
2890 s.set_pending_anchor_range(start..end, mode);
2891 }
2892 });
2893 }
2894
2895 fn begin_columnar_selection(
2896 &mut self,
2897 position: DisplayPoint,
2898 goal_column: u32,
2899 reset: bool,
2900 cx: &mut ViewContext<Self>,
2901 ) {
2902 if !self.focus_handle.is_focused(cx) {
2903 self.last_focused_descendant = None;
2904 cx.focus(&self.focus_handle);
2905 }
2906
2907 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2908
2909 if reset {
2910 let pointer_position = display_map
2911 .buffer_snapshot
2912 .anchor_before(position.to_point(&display_map));
2913
2914 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2915 s.clear_disjoint();
2916 s.set_pending_anchor_range(
2917 pointer_position..pointer_position,
2918 SelectMode::Character,
2919 );
2920 });
2921 }
2922
2923 let tail = self.selections.newest::<Point>(cx).tail();
2924 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2925
2926 if !reset {
2927 self.select_columns(
2928 tail.to_display_point(&display_map),
2929 position,
2930 goal_column,
2931 &display_map,
2932 cx,
2933 );
2934 }
2935 }
2936
2937 fn update_selection(
2938 &mut self,
2939 position: DisplayPoint,
2940 goal_column: u32,
2941 scroll_delta: gpui::Point<f32>,
2942 cx: &mut ViewContext<Self>,
2943 ) {
2944 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2945
2946 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2947 let tail = tail.to_display_point(&display_map);
2948 self.select_columns(tail, position, goal_column, &display_map, cx);
2949 } else if let Some(mut pending) = self.selections.pending_anchor() {
2950 let buffer = self.buffer.read(cx).snapshot(cx);
2951 let head;
2952 let tail;
2953 let mode = self.selections.pending_mode().unwrap();
2954 match &mode {
2955 SelectMode::Character => {
2956 head = position.to_point(&display_map);
2957 tail = pending.tail().to_point(&buffer);
2958 }
2959 SelectMode::Word(original_range) => {
2960 let original_display_range = original_range.start.to_display_point(&display_map)
2961 ..original_range.end.to_display_point(&display_map);
2962 let original_buffer_range = original_display_range.start.to_point(&display_map)
2963 ..original_display_range.end.to_point(&display_map);
2964 if movement::is_inside_word(&display_map, position)
2965 || original_display_range.contains(&position)
2966 {
2967 let word_range = movement::surrounding_word(&display_map, position);
2968 if word_range.start < original_display_range.start {
2969 head = word_range.start.to_point(&display_map);
2970 } else {
2971 head = word_range.end.to_point(&display_map);
2972 }
2973 } else {
2974 head = position.to_point(&display_map);
2975 }
2976
2977 if head <= original_buffer_range.start {
2978 tail = original_buffer_range.end;
2979 } else {
2980 tail = original_buffer_range.start;
2981 }
2982 }
2983 SelectMode::Line(original_range) => {
2984 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2985
2986 let position = display_map
2987 .clip_point(position, Bias::Left)
2988 .to_point(&display_map);
2989 let line_start = display_map.prev_line_boundary(position).0;
2990 let next_line_start = buffer.clip_point(
2991 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2992 Bias::Left,
2993 );
2994
2995 if line_start < original_range.start {
2996 head = line_start
2997 } else {
2998 head = next_line_start
2999 }
3000
3001 if head <= original_range.start {
3002 tail = original_range.end;
3003 } else {
3004 tail = original_range.start;
3005 }
3006 }
3007 SelectMode::All => {
3008 return;
3009 }
3010 };
3011
3012 if head < tail {
3013 pending.start = buffer.anchor_before(head);
3014 pending.end = buffer.anchor_before(tail);
3015 pending.reversed = true;
3016 } else {
3017 pending.start = buffer.anchor_before(tail);
3018 pending.end = buffer.anchor_before(head);
3019 pending.reversed = false;
3020 }
3021
3022 self.change_selections(None, cx, |s| {
3023 s.set_pending(pending, mode);
3024 });
3025 } else {
3026 log::error!("update_selection dispatched with no pending selection");
3027 return;
3028 }
3029
3030 self.apply_scroll_delta(scroll_delta, cx);
3031 cx.notify();
3032 }
3033
3034 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
3035 self.columnar_selection_tail.take();
3036 if self.selections.pending_anchor().is_some() {
3037 let selections = self.selections.all::<usize>(cx);
3038 self.change_selections(None, cx, |s| {
3039 s.select(selections);
3040 s.clear_pending();
3041 });
3042 }
3043 }
3044
3045 fn select_columns(
3046 &mut self,
3047 tail: DisplayPoint,
3048 head: DisplayPoint,
3049 goal_column: u32,
3050 display_map: &DisplaySnapshot,
3051 cx: &mut ViewContext<Self>,
3052 ) {
3053 let start_row = cmp::min(tail.row(), head.row());
3054 let end_row = cmp::max(tail.row(), head.row());
3055 let start_column = cmp::min(tail.column(), goal_column);
3056 let end_column = cmp::max(tail.column(), goal_column);
3057 let reversed = start_column < tail.column();
3058
3059 let selection_ranges = (start_row.0..=end_row.0)
3060 .map(DisplayRow)
3061 .filter_map(|row| {
3062 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
3063 let start = display_map
3064 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
3065 .to_point(display_map);
3066 let end = display_map
3067 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
3068 .to_point(display_map);
3069 if reversed {
3070 Some(end..start)
3071 } else {
3072 Some(start..end)
3073 }
3074 } else {
3075 None
3076 }
3077 })
3078 .collect::<Vec<_>>();
3079
3080 self.change_selections(None, cx, |s| {
3081 s.select_ranges(selection_ranges);
3082 });
3083 cx.notify();
3084 }
3085
3086 pub fn has_pending_nonempty_selection(&self) -> bool {
3087 let pending_nonempty_selection = match self.selections.pending_anchor() {
3088 Some(Selection { start, end, .. }) => start != end,
3089 None => false,
3090 };
3091
3092 pending_nonempty_selection
3093 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
3094 }
3095
3096 pub fn has_pending_selection(&self) -> bool {
3097 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
3098 }
3099
3100 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
3101 if self.clear_expanded_diff_hunks(cx) {
3102 cx.notify();
3103 return;
3104 }
3105 if self.dismiss_menus_and_popups(true, cx) {
3106 return;
3107 }
3108
3109 if self.mode == EditorMode::Full
3110 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3111 {
3112 return;
3113 }
3114
3115 cx.propagate();
3116 }
3117
3118 pub fn dismiss_menus_and_popups(
3119 &mut self,
3120 should_report_inline_completion_event: bool,
3121 cx: &mut ViewContext<Self>,
3122 ) -> bool {
3123 if self.take_rename(false, cx).is_some() {
3124 return true;
3125 }
3126
3127 if hide_hover(self, cx) {
3128 return true;
3129 }
3130
3131 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3132 return true;
3133 }
3134
3135 if self.hide_context_menu(cx).is_some() {
3136 return true;
3137 }
3138
3139 if self.mouse_context_menu.take().is_some() {
3140 return true;
3141 }
3142
3143 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3144 return true;
3145 }
3146
3147 if self.snippet_stack.pop().is_some() {
3148 return true;
3149 }
3150
3151 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3152 self.dismiss_diagnostics(cx);
3153 return true;
3154 }
3155
3156 false
3157 }
3158
3159 fn linked_editing_ranges_for(
3160 &self,
3161 selection: Range<text::Anchor>,
3162 cx: &AppContext,
3163 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3164 if self.linked_edit_ranges.is_empty() {
3165 return None;
3166 }
3167 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3168 selection.end.buffer_id.and_then(|end_buffer_id| {
3169 if selection.start.buffer_id != Some(end_buffer_id) {
3170 return None;
3171 }
3172 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3173 let snapshot = buffer.read(cx).snapshot();
3174 self.linked_edit_ranges
3175 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3176 .map(|ranges| (ranges, snapshot, buffer))
3177 })?;
3178 use text::ToOffset as TO;
3179 // find offset from the start of current range to current cursor position
3180 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3181
3182 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3183 let start_difference = start_offset - start_byte_offset;
3184 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3185 let end_difference = end_offset - start_byte_offset;
3186 // Current range has associated linked ranges.
3187 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3188 for range in linked_ranges.iter() {
3189 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3190 let end_offset = start_offset + end_difference;
3191 let start_offset = start_offset + start_difference;
3192 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3193 continue;
3194 }
3195 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3196 if s.start.buffer_id != selection.start.buffer_id
3197 || s.end.buffer_id != selection.end.buffer_id
3198 {
3199 return false;
3200 }
3201 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3202 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3203 }) {
3204 continue;
3205 }
3206 let start = buffer_snapshot.anchor_after(start_offset);
3207 let end = buffer_snapshot.anchor_after(end_offset);
3208 linked_edits
3209 .entry(buffer.clone())
3210 .or_default()
3211 .push(start..end);
3212 }
3213 Some(linked_edits)
3214 }
3215
3216 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3217 let text: Arc<str> = text.into();
3218
3219 if self.read_only(cx) {
3220 return;
3221 }
3222
3223 let selections = self.selections.all_adjusted(cx);
3224 let mut bracket_inserted = false;
3225 let mut edits = Vec::new();
3226 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3227 let mut new_selections = Vec::with_capacity(selections.len());
3228 let mut new_autoclose_regions = Vec::new();
3229 let snapshot = self.buffer.read(cx).read(cx);
3230
3231 for (selection, autoclose_region) in
3232 self.selections_with_autoclose_regions(selections, &snapshot)
3233 {
3234 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3235 // Determine if the inserted text matches the opening or closing
3236 // bracket of any of this language's bracket pairs.
3237 let mut bracket_pair = None;
3238 let mut is_bracket_pair_start = false;
3239 let mut is_bracket_pair_end = false;
3240 if !text.is_empty() {
3241 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3242 // and they are removing the character that triggered IME popup.
3243 for (pair, enabled) in scope.brackets() {
3244 if !pair.close && !pair.surround {
3245 continue;
3246 }
3247
3248 if enabled && pair.start.ends_with(text.as_ref()) {
3249 bracket_pair = Some(pair.clone());
3250 is_bracket_pair_start = true;
3251 break;
3252 }
3253 if pair.end.as_str() == text.as_ref() {
3254 bracket_pair = Some(pair.clone());
3255 is_bracket_pair_end = true;
3256 break;
3257 }
3258 }
3259 }
3260
3261 if let Some(bracket_pair) = bracket_pair {
3262 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3263 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3264 let auto_surround =
3265 self.use_auto_surround && snapshot_settings.use_auto_surround;
3266 if selection.is_empty() {
3267 if is_bracket_pair_start {
3268 let prefix_len = bracket_pair.start.len() - text.len();
3269
3270 // If the inserted text is a suffix of an opening bracket and the
3271 // selection is preceded by the rest of the opening bracket, then
3272 // insert the closing bracket.
3273 let following_text_allows_autoclose = snapshot
3274 .chars_at(selection.start)
3275 .next()
3276 .map_or(true, |c| scope.should_autoclose_before(c));
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 &bracket_pair.start[..prefix_len],
3285 ));
3286
3287 if autoclose
3288 && bracket_pair.close
3289 && following_text_allows_autoclose
3290 && preceding_text_matches_prefix
3291 {
3292 let anchor = snapshot.anchor_before(selection.end);
3293 new_selections.push((selection.map(|_| anchor), text.len()));
3294 new_autoclose_regions.push((
3295 anchor,
3296 text.len(),
3297 selection.id,
3298 bracket_pair.clone(),
3299 ));
3300 edits.push((
3301 selection.range(),
3302 format!("{}{}", text, bracket_pair.end).into(),
3303 ));
3304 bracket_inserted = true;
3305 continue;
3306 }
3307 }
3308
3309 if let Some(region) = autoclose_region {
3310 // If the selection is followed by an auto-inserted closing bracket,
3311 // then don't insert that closing bracket again; just move the selection
3312 // past the closing bracket.
3313 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3314 && text.as_ref() == region.pair.end.as_str();
3315 if should_skip {
3316 let anchor = snapshot.anchor_after(selection.end);
3317 new_selections
3318 .push((selection.map(|_| anchor), region.pair.end.len()));
3319 continue;
3320 }
3321 }
3322
3323 let always_treat_brackets_as_autoclosed = snapshot
3324 .settings_at(selection.start, cx)
3325 .always_treat_brackets_as_autoclosed;
3326 if always_treat_brackets_as_autoclosed
3327 && is_bracket_pair_end
3328 && snapshot.contains_str_at(selection.end, text.as_ref())
3329 {
3330 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3331 // and the inserted text is a closing bracket and the selection is followed
3332 // by the closing bracket then move the selection past the closing bracket.
3333 let anchor = snapshot.anchor_after(selection.end);
3334 new_selections.push((selection.map(|_| anchor), text.len()));
3335 continue;
3336 }
3337 }
3338 // If an opening bracket is 1 character long and is typed while
3339 // text is selected, then surround that text with the bracket pair.
3340 else if auto_surround
3341 && bracket_pair.surround
3342 && is_bracket_pair_start
3343 && bracket_pair.start.chars().count() == 1
3344 {
3345 edits.push((selection.start..selection.start, text.clone()));
3346 edits.push((
3347 selection.end..selection.end,
3348 bracket_pair.end.as_str().into(),
3349 ));
3350 bracket_inserted = true;
3351 new_selections.push((
3352 Selection {
3353 id: selection.id,
3354 start: snapshot.anchor_after(selection.start),
3355 end: snapshot.anchor_before(selection.end),
3356 reversed: selection.reversed,
3357 goal: selection.goal,
3358 },
3359 0,
3360 ));
3361 continue;
3362 }
3363 }
3364 }
3365
3366 if self.auto_replace_emoji_shortcode
3367 && selection.is_empty()
3368 && text.as_ref().ends_with(':')
3369 {
3370 if let Some(possible_emoji_short_code) =
3371 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3372 {
3373 if !possible_emoji_short_code.is_empty() {
3374 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3375 let emoji_shortcode_start = Point::new(
3376 selection.start.row,
3377 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3378 );
3379
3380 // Remove shortcode from buffer
3381 edits.push((
3382 emoji_shortcode_start..selection.start,
3383 "".to_string().into(),
3384 ));
3385 new_selections.push((
3386 Selection {
3387 id: selection.id,
3388 start: snapshot.anchor_after(emoji_shortcode_start),
3389 end: snapshot.anchor_before(selection.start),
3390 reversed: selection.reversed,
3391 goal: selection.goal,
3392 },
3393 0,
3394 ));
3395
3396 // Insert emoji
3397 let selection_start_anchor = snapshot.anchor_after(selection.start);
3398 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3399 edits.push((selection.start..selection.end, emoji.to_string().into()));
3400
3401 continue;
3402 }
3403 }
3404 }
3405 }
3406
3407 // If not handling any auto-close operation, then just replace the selected
3408 // text with the given input and move the selection to the end of the
3409 // newly inserted text.
3410 let anchor = snapshot.anchor_after(selection.end);
3411 if !self.linked_edit_ranges.is_empty() {
3412 let start_anchor = snapshot.anchor_before(selection.start);
3413
3414 let is_word_char = text.chars().next().map_or(true, |char| {
3415 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3416 classifier.is_word(char)
3417 });
3418
3419 if is_word_char {
3420 if let Some(ranges) = self
3421 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3422 {
3423 for (buffer, edits) in ranges {
3424 linked_edits
3425 .entry(buffer.clone())
3426 .or_default()
3427 .extend(edits.into_iter().map(|range| (range, text.clone())));
3428 }
3429 }
3430 }
3431 }
3432
3433 new_selections.push((selection.map(|_| anchor), 0));
3434 edits.push((selection.start..selection.end, text.clone()));
3435 }
3436
3437 drop(snapshot);
3438
3439 self.transact(cx, |this, cx| {
3440 this.buffer.update(cx, |buffer, cx| {
3441 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3442 });
3443 for (buffer, edits) in linked_edits {
3444 buffer.update(cx, |buffer, cx| {
3445 let snapshot = buffer.snapshot();
3446 let edits = edits
3447 .into_iter()
3448 .map(|(range, text)| {
3449 use text::ToPoint as TP;
3450 let end_point = TP::to_point(&range.end, &snapshot);
3451 let start_point = TP::to_point(&range.start, &snapshot);
3452 (start_point..end_point, text)
3453 })
3454 .sorted_by_key(|(range, _)| range.start)
3455 .collect::<Vec<_>>();
3456 buffer.edit(edits, None, cx);
3457 })
3458 }
3459 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3460 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3461 let snapshot = this.buffer.read(cx).read(cx);
3462 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
3463 .zip(new_selection_deltas)
3464 .map(|(selection, delta)| Selection {
3465 id: selection.id,
3466 start: selection.start + delta,
3467 end: selection.end + delta,
3468 reversed: selection.reversed,
3469 goal: SelectionGoal::None,
3470 })
3471 .collect::<Vec<_>>();
3472
3473 let mut i = 0;
3474 for (position, delta, selection_id, pair) in new_autoclose_regions {
3475 let position = position.to_offset(&snapshot) + delta;
3476 let start = snapshot.anchor_before(position);
3477 let end = snapshot.anchor_after(position);
3478 while let Some(existing_state) = this.autoclose_regions.get(i) {
3479 match existing_state.range.start.cmp(&start, &snapshot) {
3480 Ordering::Less => i += 1,
3481 Ordering::Greater => break,
3482 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
3483 Ordering::Less => i += 1,
3484 Ordering::Equal => break,
3485 Ordering::Greater => break,
3486 },
3487 }
3488 }
3489 this.autoclose_regions.insert(
3490 i,
3491 AutocloseRegion {
3492 selection_id,
3493 range: start..end,
3494 pair,
3495 },
3496 );
3497 }
3498
3499 drop(snapshot);
3500 let had_active_inline_completion = this.has_active_inline_completion(cx);
3501 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3502 s.select(new_selections)
3503 });
3504
3505 if !bracket_inserted {
3506 if let Some(on_type_format_task) =
3507 this.trigger_on_type_formatting(text.to_string(), cx)
3508 {
3509 on_type_format_task.detach_and_log_err(cx);
3510 }
3511 }
3512
3513 let editor_settings = EditorSettings::get_global(cx);
3514 if bracket_inserted
3515 && (editor_settings.auto_signature_help
3516 || editor_settings.show_signature_help_after_edits)
3517 {
3518 this.show_signature_help(&ShowSignatureHelp, cx);
3519 }
3520
3521 let trigger_in_words = !had_active_inline_completion;
3522 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3523 linked_editing_ranges::refresh_linked_ranges(this, cx);
3524 this.refresh_inline_completion(true, false, cx);
3525 });
3526 }
3527
3528 fn find_possible_emoji_shortcode_at_position(
3529 snapshot: &MultiBufferSnapshot,
3530 position: Point,
3531 ) -> Option<String> {
3532 let mut chars = Vec::new();
3533 let mut found_colon = false;
3534 for char in snapshot.reversed_chars_at(position).take(100) {
3535 // Found a possible emoji shortcode in the middle of the buffer
3536 if found_colon {
3537 if char.is_whitespace() {
3538 chars.reverse();
3539 return Some(chars.iter().collect());
3540 }
3541 // If the previous character is not a whitespace, we are in the middle of a word
3542 // and we only want to complete the shortcode if the word is made up of other emojis
3543 let mut containing_word = String::new();
3544 for ch in snapshot
3545 .reversed_chars_at(position)
3546 .skip(chars.len() + 1)
3547 .take(100)
3548 {
3549 if ch.is_whitespace() {
3550 break;
3551 }
3552 containing_word.push(ch);
3553 }
3554 let containing_word = containing_word.chars().rev().collect::<String>();
3555 if util::word_consists_of_emojis(containing_word.as_str()) {
3556 chars.reverse();
3557 return Some(chars.iter().collect());
3558 }
3559 }
3560
3561 if char.is_whitespace() || !char.is_ascii() {
3562 return None;
3563 }
3564 if char == ':' {
3565 found_colon = true;
3566 } else {
3567 chars.push(char);
3568 }
3569 }
3570 // Found a possible emoji shortcode at the beginning of the buffer
3571 chars.reverse();
3572 Some(chars.iter().collect())
3573 }
3574
3575 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3576 self.transact(cx, |this, cx| {
3577 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3578 let selections = this.selections.all::<usize>(cx);
3579 let multi_buffer = this.buffer.read(cx);
3580 let buffer = multi_buffer.snapshot(cx);
3581 selections
3582 .iter()
3583 .map(|selection| {
3584 let start_point = selection.start.to_point(&buffer);
3585 let mut indent =
3586 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3587 indent.len = cmp::min(indent.len, start_point.column);
3588 let start = selection.start;
3589 let end = selection.end;
3590 let selection_is_empty = start == end;
3591 let language_scope = buffer.language_scope_at(start);
3592 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3593 &language_scope
3594 {
3595 let leading_whitespace_len = buffer
3596 .reversed_chars_at(start)
3597 .take_while(|c| c.is_whitespace() && *c != '\n')
3598 .map(|c| c.len_utf8())
3599 .sum::<usize>();
3600
3601 let trailing_whitespace_len = buffer
3602 .chars_at(end)
3603 .take_while(|c| c.is_whitespace() && *c != '\n')
3604 .map(|c| c.len_utf8())
3605 .sum::<usize>();
3606
3607 let insert_extra_newline =
3608 language.brackets().any(|(pair, enabled)| {
3609 let pair_start = pair.start.trim_end();
3610 let pair_end = pair.end.trim_start();
3611
3612 enabled
3613 && pair.newline
3614 && buffer.contains_str_at(
3615 end + trailing_whitespace_len,
3616 pair_end,
3617 )
3618 && buffer.contains_str_at(
3619 (start - leading_whitespace_len)
3620 .saturating_sub(pair_start.len()),
3621 pair_start,
3622 )
3623 });
3624
3625 // Comment extension on newline is allowed only for cursor selections
3626 let comment_delimiter = maybe!({
3627 if !selection_is_empty {
3628 return None;
3629 }
3630
3631 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3632 return None;
3633 }
3634
3635 let delimiters = language.line_comment_prefixes();
3636 let max_len_of_delimiter =
3637 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3638 let (snapshot, range) =
3639 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3640
3641 let mut index_of_first_non_whitespace = 0;
3642 let comment_candidate = snapshot
3643 .chars_for_range(range)
3644 .skip_while(|c| {
3645 let should_skip = c.is_whitespace();
3646 if should_skip {
3647 index_of_first_non_whitespace += 1;
3648 }
3649 should_skip
3650 })
3651 .take(max_len_of_delimiter)
3652 .collect::<String>();
3653 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3654 comment_candidate.starts_with(comment_prefix.as_ref())
3655 })?;
3656 let cursor_is_placed_after_comment_marker =
3657 index_of_first_non_whitespace + comment_prefix.len()
3658 <= start_point.column as usize;
3659 if cursor_is_placed_after_comment_marker {
3660 Some(comment_prefix.clone())
3661 } else {
3662 None
3663 }
3664 });
3665 (comment_delimiter, insert_extra_newline)
3666 } else {
3667 (None, false)
3668 };
3669
3670 let capacity_for_delimiter = comment_delimiter
3671 .as_deref()
3672 .map(str::len)
3673 .unwrap_or_default();
3674 let mut new_text =
3675 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3676 new_text.push('\n');
3677 new_text.extend(indent.chars());
3678 if let Some(delimiter) = &comment_delimiter {
3679 new_text.push_str(delimiter);
3680 }
3681 if insert_extra_newline {
3682 new_text = new_text.repeat(2);
3683 }
3684
3685 let anchor = buffer.anchor_after(end);
3686 let new_selection = selection.map(|_| anchor);
3687 (
3688 (start..end, new_text),
3689 (insert_extra_newline, new_selection),
3690 )
3691 })
3692 .unzip()
3693 };
3694
3695 this.edit_with_autoindent(edits, cx);
3696 let buffer = this.buffer.read(cx).snapshot(cx);
3697 let new_selections = selection_fixup_info
3698 .into_iter()
3699 .map(|(extra_newline_inserted, new_selection)| {
3700 let mut cursor = new_selection.end.to_point(&buffer);
3701 if extra_newline_inserted {
3702 cursor.row -= 1;
3703 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3704 }
3705 new_selection.map(|_| cursor)
3706 })
3707 .collect();
3708
3709 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3710 this.refresh_inline_completion(true, false, cx);
3711 });
3712 }
3713
3714 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3715 let buffer = self.buffer.read(cx);
3716 let snapshot = buffer.snapshot(cx);
3717
3718 let mut edits = Vec::new();
3719 let mut rows = Vec::new();
3720
3721 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3722 let cursor = selection.head();
3723 let row = cursor.row;
3724
3725 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3726
3727 let newline = "\n".to_string();
3728 edits.push((start_of_line..start_of_line, newline));
3729
3730 rows.push(row + rows_inserted as u32);
3731 }
3732
3733 self.transact(cx, |editor, cx| {
3734 editor.edit(edits, cx);
3735
3736 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3737 let mut index = 0;
3738 s.move_cursors_with(|map, _, _| {
3739 let row = rows[index];
3740 index += 1;
3741
3742 let point = Point::new(row, 0);
3743 let boundary = map.next_line_boundary(point).1;
3744 let clipped = map.clip_point(boundary, Bias::Left);
3745
3746 (clipped, SelectionGoal::None)
3747 });
3748 });
3749
3750 let mut indent_edits = Vec::new();
3751 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3752 for row in rows {
3753 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3754 for (row, indent) in indents {
3755 if indent.len == 0 {
3756 continue;
3757 }
3758
3759 let text = match indent.kind {
3760 IndentKind::Space => " ".repeat(indent.len as usize),
3761 IndentKind::Tab => "\t".repeat(indent.len as usize),
3762 };
3763 let point = Point::new(row.0, 0);
3764 indent_edits.push((point..point, text));
3765 }
3766 }
3767 editor.edit(indent_edits, cx);
3768 });
3769 }
3770
3771 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3772 let buffer = self.buffer.read(cx);
3773 let snapshot = buffer.snapshot(cx);
3774
3775 let mut edits = Vec::new();
3776 let mut rows = Vec::new();
3777 let mut rows_inserted = 0;
3778
3779 for selection in self.selections.all_adjusted(cx) {
3780 let cursor = selection.head();
3781 let row = cursor.row;
3782
3783 let point = Point::new(row + 1, 0);
3784 let start_of_line = snapshot.clip_point(point, Bias::Left);
3785
3786 let newline = "\n".to_string();
3787 edits.push((start_of_line..start_of_line, newline));
3788
3789 rows_inserted += 1;
3790 rows.push(row + rows_inserted);
3791 }
3792
3793 self.transact(cx, |editor, cx| {
3794 editor.edit(edits, cx);
3795
3796 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3797 let mut index = 0;
3798 s.move_cursors_with(|map, _, _| {
3799 let row = rows[index];
3800 index += 1;
3801
3802 let point = Point::new(row, 0);
3803 let boundary = map.next_line_boundary(point).1;
3804 let clipped = map.clip_point(boundary, Bias::Left);
3805
3806 (clipped, SelectionGoal::None)
3807 });
3808 });
3809
3810 let mut indent_edits = Vec::new();
3811 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3812 for row in rows {
3813 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3814 for (row, indent) in indents {
3815 if indent.len == 0 {
3816 continue;
3817 }
3818
3819 let text = match indent.kind {
3820 IndentKind::Space => " ".repeat(indent.len as usize),
3821 IndentKind::Tab => "\t".repeat(indent.len as usize),
3822 };
3823 let point = Point::new(row.0, 0);
3824 indent_edits.push((point..point, text));
3825 }
3826 }
3827 editor.edit(indent_edits, cx);
3828 });
3829 }
3830
3831 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3832 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3833 original_indent_columns: Vec::new(),
3834 });
3835 self.insert_with_autoindent_mode(text, autoindent, cx);
3836 }
3837
3838 fn insert_with_autoindent_mode(
3839 &mut self,
3840 text: &str,
3841 autoindent_mode: Option<AutoindentMode>,
3842 cx: &mut ViewContext<Self>,
3843 ) {
3844 if self.read_only(cx) {
3845 return;
3846 }
3847
3848 let text: Arc<str> = text.into();
3849 self.transact(cx, |this, cx| {
3850 let old_selections = this.selections.all_adjusted(cx);
3851 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3852 let anchors = {
3853 let snapshot = buffer.read(cx);
3854 old_selections
3855 .iter()
3856 .map(|s| {
3857 let anchor = snapshot.anchor_after(s.head());
3858 s.map(|_| anchor)
3859 })
3860 .collect::<Vec<_>>()
3861 };
3862 buffer.edit(
3863 old_selections
3864 .iter()
3865 .map(|s| (s.start..s.end, text.clone())),
3866 autoindent_mode,
3867 cx,
3868 );
3869 anchors
3870 });
3871
3872 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3873 s.select_anchors(selection_anchors);
3874 })
3875 });
3876 }
3877
3878 fn trigger_completion_on_input(
3879 &mut self,
3880 text: &str,
3881 trigger_in_words: bool,
3882 cx: &mut ViewContext<Self>,
3883 ) {
3884 if self.is_completion_trigger(text, trigger_in_words, cx) {
3885 self.show_completions(
3886 &ShowCompletions {
3887 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3888 },
3889 cx,
3890 );
3891 } else {
3892 self.hide_context_menu(cx);
3893 }
3894 }
3895
3896 fn is_completion_trigger(
3897 &self,
3898 text: &str,
3899 trigger_in_words: bool,
3900 cx: &mut ViewContext<Self>,
3901 ) -> bool {
3902 let position = self.selections.newest_anchor().head();
3903 let multibuffer = self.buffer.read(cx);
3904 let Some(buffer) = position
3905 .buffer_id
3906 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3907 else {
3908 return false;
3909 };
3910
3911 if let Some(completion_provider) = &self.completion_provider {
3912 completion_provider.is_completion_trigger(
3913 &buffer,
3914 position.text_anchor,
3915 text,
3916 trigger_in_words,
3917 cx,
3918 )
3919 } else {
3920 false
3921 }
3922 }
3923
3924 /// If any empty selections is touching the start of its innermost containing autoclose
3925 /// region, expand it to select the brackets.
3926 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3927 let selections = self.selections.all::<usize>(cx);
3928 let buffer = self.buffer.read(cx).read(cx);
3929 let new_selections = self
3930 .selections_with_autoclose_regions(selections, &buffer)
3931 .map(|(mut selection, region)| {
3932 if !selection.is_empty() {
3933 return selection;
3934 }
3935
3936 if let Some(region) = region {
3937 let mut range = region.range.to_offset(&buffer);
3938 if selection.start == range.start && range.start >= region.pair.start.len() {
3939 range.start -= region.pair.start.len();
3940 if buffer.contains_str_at(range.start, ®ion.pair.start)
3941 && buffer.contains_str_at(range.end, ®ion.pair.end)
3942 {
3943 range.end += region.pair.end.len();
3944 selection.start = range.start;
3945 selection.end = range.end;
3946
3947 return selection;
3948 }
3949 }
3950 }
3951
3952 let always_treat_brackets_as_autoclosed = buffer
3953 .settings_at(selection.start, cx)
3954 .always_treat_brackets_as_autoclosed;
3955
3956 if !always_treat_brackets_as_autoclosed {
3957 return selection;
3958 }
3959
3960 if let Some(scope) = buffer.language_scope_at(selection.start) {
3961 for (pair, enabled) in scope.brackets() {
3962 if !enabled || !pair.close {
3963 continue;
3964 }
3965
3966 if buffer.contains_str_at(selection.start, &pair.end) {
3967 let pair_start_len = pair.start.len();
3968 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3969 {
3970 selection.start -= pair_start_len;
3971 selection.end += pair.end.len();
3972
3973 return selection;
3974 }
3975 }
3976 }
3977 }
3978
3979 selection
3980 })
3981 .collect();
3982
3983 drop(buffer);
3984 self.change_selections(None, cx, |selections| selections.select(new_selections));
3985 }
3986
3987 /// Iterate the given selections, and for each one, find the smallest surrounding
3988 /// autoclose region. This uses the ordering of the selections and the autoclose
3989 /// regions to avoid repeated comparisons.
3990 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3991 &'a self,
3992 selections: impl IntoIterator<Item = Selection<D>>,
3993 buffer: &'a MultiBufferSnapshot,
3994 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3995 let mut i = 0;
3996 let mut regions = self.autoclose_regions.as_slice();
3997 selections.into_iter().map(move |selection| {
3998 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3999
4000 let mut enclosing = None;
4001 while let Some(pair_state) = regions.get(i) {
4002 if pair_state.range.end.to_offset(buffer) < range.start {
4003 regions = ®ions[i + 1..];
4004 i = 0;
4005 } else if pair_state.range.start.to_offset(buffer) > range.end {
4006 break;
4007 } else {
4008 if pair_state.selection_id == selection.id {
4009 enclosing = Some(pair_state);
4010 }
4011 i += 1;
4012 }
4013 }
4014
4015 (selection.clone(), enclosing)
4016 })
4017 }
4018
4019 /// Remove any autoclose regions that no longer contain their selection.
4020 fn invalidate_autoclose_regions(
4021 &mut self,
4022 mut selections: &[Selection<Anchor>],
4023 buffer: &MultiBufferSnapshot,
4024 ) {
4025 self.autoclose_regions.retain(|state| {
4026 let mut i = 0;
4027 while let Some(selection) = selections.get(i) {
4028 if selection.end.cmp(&state.range.start, buffer).is_lt() {
4029 selections = &selections[1..];
4030 continue;
4031 }
4032 if selection.start.cmp(&state.range.end, buffer).is_gt() {
4033 break;
4034 }
4035 if selection.id == state.selection_id {
4036 return true;
4037 } else {
4038 i += 1;
4039 }
4040 }
4041 false
4042 });
4043 }
4044
4045 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
4046 let offset = position.to_offset(buffer);
4047 let (word_range, kind) = buffer.surrounding_word(offset, true);
4048 if offset > word_range.start && kind == Some(CharKind::Word) {
4049 Some(
4050 buffer
4051 .text_for_range(word_range.start..offset)
4052 .collect::<String>(),
4053 )
4054 } else {
4055 None
4056 }
4057 }
4058
4059 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
4060 self.refresh_inlay_hints(
4061 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
4062 cx,
4063 );
4064 }
4065
4066 pub fn inlay_hints_enabled(&self) -> bool {
4067 self.inlay_hint_cache.enabled
4068 }
4069
4070 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
4071 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
4072 return;
4073 }
4074
4075 let reason_description = reason.description();
4076 let ignore_debounce = matches!(
4077 reason,
4078 InlayHintRefreshReason::SettingsChange(_)
4079 | InlayHintRefreshReason::Toggle(_)
4080 | InlayHintRefreshReason::ExcerptsRemoved(_)
4081 );
4082 let (invalidate_cache, required_languages) = match reason {
4083 InlayHintRefreshReason::Toggle(enabled) => {
4084 self.inlay_hint_cache.enabled = enabled;
4085 if enabled {
4086 (InvalidationStrategy::RefreshRequested, None)
4087 } else {
4088 self.inlay_hint_cache.clear();
4089 self.splice_inlays(
4090 self.visible_inlay_hints(cx)
4091 .iter()
4092 .map(|inlay| inlay.id)
4093 .collect(),
4094 Vec::new(),
4095 cx,
4096 );
4097 return;
4098 }
4099 }
4100 InlayHintRefreshReason::SettingsChange(new_settings) => {
4101 match self.inlay_hint_cache.update_settings(
4102 &self.buffer,
4103 new_settings,
4104 self.visible_inlay_hints(cx),
4105 cx,
4106 ) {
4107 ControlFlow::Break(Some(InlaySplice {
4108 to_remove,
4109 to_insert,
4110 })) => {
4111 self.splice_inlays(to_remove, to_insert, cx);
4112 return;
4113 }
4114 ControlFlow::Break(None) => return,
4115 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4116 }
4117 }
4118 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4119 if let Some(InlaySplice {
4120 to_remove,
4121 to_insert,
4122 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4123 {
4124 self.splice_inlays(to_remove, to_insert, cx);
4125 }
4126 return;
4127 }
4128 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4129 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4130 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4131 }
4132 InlayHintRefreshReason::RefreshRequested => {
4133 (InvalidationStrategy::RefreshRequested, None)
4134 }
4135 };
4136
4137 if let Some(InlaySplice {
4138 to_remove,
4139 to_insert,
4140 }) = self.inlay_hint_cache.spawn_hint_refresh(
4141 reason_description,
4142 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4143 invalidate_cache,
4144 ignore_debounce,
4145 cx,
4146 ) {
4147 self.splice_inlays(to_remove, to_insert, cx);
4148 }
4149 }
4150
4151 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4152 self.display_map
4153 .read(cx)
4154 .current_inlays()
4155 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4156 .cloned()
4157 .collect()
4158 }
4159
4160 pub fn excerpts_for_inlay_hints_query(
4161 &self,
4162 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4163 cx: &mut ViewContext<Editor>,
4164 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4165 let Some(project) = self.project.as_ref() else {
4166 return HashMap::default();
4167 };
4168 let project = project.read(cx);
4169 let multi_buffer = self.buffer().read(cx);
4170 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4171 let multi_buffer_visible_start = self
4172 .scroll_manager
4173 .anchor()
4174 .anchor
4175 .to_point(&multi_buffer_snapshot);
4176 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4177 multi_buffer_visible_start
4178 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4179 Bias::Left,
4180 );
4181 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4182 multi_buffer
4183 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4184 .into_iter()
4185 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4186 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4187 let buffer = buffer_handle.read(cx);
4188 let buffer_file = project::File::from_dyn(buffer.file())?;
4189 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4190 let worktree_entry = buffer_worktree
4191 .read(cx)
4192 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4193 if worktree_entry.is_ignored {
4194 return None;
4195 }
4196
4197 let language = buffer.language()?;
4198 if let Some(restrict_to_languages) = restrict_to_languages {
4199 if !restrict_to_languages.contains(language) {
4200 return None;
4201 }
4202 }
4203 Some((
4204 excerpt_id,
4205 (
4206 buffer_handle,
4207 buffer.version().clone(),
4208 excerpt_visible_range,
4209 ),
4210 ))
4211 })
4212 .collect()
4213 }
4214
4215 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4216 TextLayoutDetails {
4217 text_system: cx.text_system().clone(),
4218 editor_style: self.style.clone().unwrap(),
4219 rem_size: cx.rem_size(),
4220 scroll_anchor: self.scroll_manager.anchor(),
4221 visible_rows: self.visible_line_count(),
4222 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4223 }
4224 }
4225
4226 fn splice_inlays(
4227 &self,
4228 to_remove: Vec<InlayId>,
4229 to_insert: Vec<Inlay>,
4230 cx: &mut ViewContext<Self>,
4231 ) {
4232 self.display_map.update(cx, |display_map, cx| {
4233 display_map.splice_inlays(to_remove, to_insert, cx);
4234 });
4235 cx.notify();
4236 }
4237
4238 fn trigger_on_type_formatting(
4239 &self,
4240 input: String,
4241 cx: &mut ViewContext<Self>,
4242 ) -> Option<Task<Result<()>>> {
4243 if input.len() != 1 {
4244 return None;
4245 }
4246
4247 let project = self.project.as_ref()?;
4248 let position = self.selections.newest_anchor().head();
4249 let (buffer, buffer_position) = self
4250 .buffer
4251 .read(cx)
4252 .text_anchor_for_position(position, cx)?;
4253
4254 let settings = language_settings::language_settings(
4255 buffer.read(cx).language_at(buffer_position).as_ref(),
4256 buffer.read(cx).file(),
4257 cx,
4258 );
4259 if !settings.use_on_type_format {
4260 return None;
4261 }
4262
4263 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4264 // hence we do LSP request & edit on host side only — add formats to host's history.
4265 let push_to_lsp_host_history = true;
4266 // If this is not the host, append its history with new edits.
4267 let push_to_client_history = project.read(cx).is_via_collab();
4268
4269 let on_type_formatting = project.update(cx, |project, cx| {
4270 project.on_type_format(
4271 buffer.clone(),
4272 buffer_position,
4273 input,
4274 push_to_lsp_host_history,
4275 cx,
4276 )
4277 });
4278 Some(cx.spawn(|editor, mut cx| async move {
4279 if let Some(transaction) = on_type_formatting.await? {
4280 if push_to_client_history {
4281 buffer
4282 .update(&mut cx, |buffer, _| {
4283 buffer.push_transaction(transaction, Instant::now());
4284 })
4285 .ok();
4286 }
4287 editor.update(&mut cx, |editor, cx| {
4288 editor.refresh_document_highlights(cx);
4289 })?;
4290 }
4291 Ok(())
4292 }))
4293 }
4294
4295 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4296 if self.pending_rename.is_some() {
4297 return;
4298 }
4299
4300 let Some(provider) = self.completion_provider.as_ref() else {
4301 return;
4302 };
4303
4304 let position = self.selections.newest_anchor().head();
4305 let (buffer, buffer_position) =
4306 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4307 output
4308 } else {
4309 return;
4310 };
4311
4312 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4313 let is_followup_invoke = {
4314 let context_menu_state = self.context_menu.read();
4315 matches!(
4316 context_menu_state.deref(),
4317 Some(ContextMenu::Completions(_))
4318 )
4319 };
4320 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4321 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4322 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4323 CompletionTriggerKind::TRIGGER_CHARACTER
4324 }
4325
4326 _ => CompletionTriggerKind::INVOKED,
4327 };
4328 let completion_context = CompletionContext {
4329 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4330 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4331 Some(String::from(trigger))
4332 } else {
4333 None
4334 }
4335 }),
4336 trigger_kind,
4337 };
4338 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4339 let sort_completions = provider.sort_completions();
4340
4341 let id = post_inc(&mut self.next_completion_id);
4342 let task = cx.spawn(|this, mut cx| {
4343 async move {
4344 this.update(&mut cx, |this, _| {
4345 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4346 })?;
4347 let completions = completions.await.log_err();
4348 let menu = if let Some(completions) = completions {
4349 let mut menu = CompletionsMenu {
4350 id,
4351 sort_completions,
4352 initial_position: position,
4353 match_candidates: completions
4354 .iter()
4355 .enumerate()
4356 .map(|(id, completion)| {
4357 StringMatchCandidate::new(
4358 id,
4359 completion.label.text[completion.label.filter_range.clone()]
4360 .into(),
4361 )
4362 })
4363 .collect(),
4364 buffer: buffer.clone(),
4365 completions: Arc::new(RwLock::new(completions.into())),
4366 matches: Vec::new().into(),
4367 selected_item: 0,
4368 scroll_handle: UniformListScrollHandle::new(),
4369 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4370 DebouncedDelay::new(),
4371 )),
4372 };
4373 menu.filter(query.as_deref(), cx.background_executor().clone())
4374 .await;
4375
4376 if menu.matches.is_empty() {
4377 None
4378 } else {
4379 this.update(&mut cx, |editor, cx| {
4380 let completions = menu.completions.clone();
4381 let matches = menu.matches.clone();
4382
4383 let delay_ms = EditorSettings::get_global(cx)
4384 .completion_documentation_secondary_query_debounce;
4385 let delay = Duration::from_millis(delay_ms);
4386 editor
4387 .completion_documentation_pre_resolve_debounce
4388 .fire_new(delay, cx, |editor, cx| {
4389 CompletionsMenu::pre_resolve_completion_documentation(
4390 buffer,
4391 completions,
4392 matches,
4393 editor,
4394 cx,
4395 )
4396 });
4397 })
4398 .ok();
4399 Some(menu)
4400 }
4401 } else {
4402 None
4403 };
4404
4405 this.update(&mut cx, |this, cx| {
4406 let mut context_menu = this.context_menu.write();
4407 match context_menu.as_ref() {
4408 None => {}
4409
4410 Some(ContextMenu::Completions(prev_menu)) => {
4411 if prev_menu.id > id {
4412 return;
4413 }
4414 }
4415
4416 _ => return,
4417 }
4418
4419 if this.focus_handle.is_focused(cx) && menu.is_some() {
4420 let menu = menu.unwrap();
4421 *context_menu = Some(ContextMenu::Completions(menu));
4422 drop(context_menu);
4423 this.discard_inline_completion(false, cx);
4424 cx.notify();
4425 } else if this.completion_tasks.len() <= 1 {
4426 // If there are no more completion tasks and the last menu was
4427 // empty, we should hide it. If it was already hidden, we should
4428 // also show the copilot completion when available.
4429 drop(context_menu);
4430 if this.hide_context_menu(cx).is_none() {
4431 this.update_visible_inline_completion(cx);
4432 }
4433 }
4434 })?;
4435
4436 Ok::<_, anyhow::Error>(())
4437 }
4438 .log_err()
4439 });
4440
4441 self.completion_tasks.push((id, task));
4442 }
4443
4444 pub fn confirm_completion(
4445 &mut self,
4446 action: &ConfirmCompletion,
4447 cx: &mut ViewContext<Self>,
4448 ) -> Option<Task<Result<()>>> {
4449 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4450 }
4451
4452 pub fn compose_completion(
4453 &mut self,
4454 action: &ComposeCompletion,
4455 cx: &mut ViewContext<Self>,
4456 ) -> Option<Task<Result<()>>> {
4457 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4458 }
4459
4460 fn do_completion(
4461 &mut self,
4462 item_ix: Option<usize>,
4463 intent: CompletionIntent,
4464 cx: &mut ViewContext<Editor>,
4465 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4466 use language::ToOffset as _;
4467
4468 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4469 menu
4470 } else {
4471 return None;
4472 };
4473
4474 let mat = completions_menu
4475 .matches
4476 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4477 let buffer_handle = completions_menu.buffer;
4478 let completions = completions_menu.completions.read();
4479 let completion = completions.get(mat.candidate_id)?;
4480 cx.stop_propagation();
4481
4482 let snippet;
4483 let text;
4484
4485 if completion.is_snippet() {
4486 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4487 text = snippet.as_ref().unwrap().text.clone();
4488 } else {
4489 snippet = None;
4490 text = completion.new_text.clone();
4491 };
4492 let selections = self.selections.all::<usize>(cx);
4493 let buffer = buffer_handle.read(cx);
4494 let old_range = completion.old_range.to_offset(buffer);
4495 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4496
4497 let newest_selection = self.selections.newest_anchor();
4498 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4499 return None;
4500 }
4501
4502 let lookbehind = newest_selection
4503 .start
4504 .text_anchor
4505 .to_offset(buffer)
4506 .saturating_sub(old_range.start);
4507 let lookahead = old_range
4508 .end
4509 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4510 let mut common_prefix_len = old_text
4511 .bytes()
4512 .zip(text.bytes())
4513 .take_while(|(a, b)| a == b)
4514 .count();
4515
4516 let snapshot = self.buffer.read(cx).snapshot(cx);
4517 let mut range_to_replace: Option<Range<isize>> = None;
4518 let mut ranges = Vec::new();
4519 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4520 for selection in &selections {
4521 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4522 let start = selection.start.saturating_sub(lookbehind);
4523 let end = selection.end + lookahead;
4524 if selection.id == newest_selection.id {
4525 range_to_replace = Some(
4526 ((start + common_prefix_len) as isize - selection.start as isize)
4527 ..(end as isize - selection.start as isize),
4528 );
4529 }
4530 ranges.push(start + common_prefix_len..end);
4531 } else {
4532 common_prefix_len = 0;
4533 ranges.clear();
4534 ranges.extend(selections.iter().map(|s| {
4535 if s.id == newest_selection.id {
4536 range_to_replace = Some(
4537 old_range.start.to_offset_utf16(&snapshot).0 as isize
4538 - selection.start as isize
4539 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4540 - selection.start as isize,
4541 );
4542 old_range.clone()
4543 } else {
4544 s.start..s.end
4545 }
4546 }));
4547 break;
4548 }
4549 if !self.linked_edit_ranges.is_empty() {
4550 let start_anchor = snapshot.anchor_before(selection.head());
4551 let end_anchor = snapshot.anchor_after(selection.tail());
4552 if let Some(ranges) = self
4553 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4554 {
4555 for (buffer, edits) in ranges {
4556 linked_edits.entry(buffer.clone()).or_default().extend(
4557 edits
4558 .into_iter()
4559 .map(|range| (range, text[common_prefix_len..].to_owned())),
4560 );
4561 }
4562 }
4563 }
4564 }
4565 let text = &text[common_prefix_len..];
4566
4567 cx.emit(EditorEvent::InputHandled {
4568 utf16_range_to_replace: range_to_replace,
4569 text: text.into(),
4570 });
4571
4572 self.transact(cx, |this, cx| {
4573 if let Some(mut snippet) = snippet {
4574 snippet.text = text.to_string();
4575 for tabstop in snippet.tabstops.iter_mut().flatten() {
4576 tabstop.start -= common_prefix_len as isize;
4577 tabstop.end -= common_prefix_len as isize;
4578 }
4579
4580 this.insert_snippet(&ranges, snippet, cx).log_err();
4581 } else {
4582 this.buffer.update(cx, |buffer, cx| {
4583 buffer.edit(
4584 ranges.iter().map(|range| (range.clone(), text)),
4585 this.autoindent_mode.clone(),
4586 cx,
4587 );
4588 });
4589 }
4590 for (buffer, edits) in linked_edits {
4591 buffer.update(cx, |buffer, cx| {
4592 let snapshot = buffer.snapshot();
4593 let edits = edits
4594 .into_iter()
4595 .map(|(range, text)| {
4596 use text::ToPoint as TP;
4597 let end_point = TP::to_point(&range.end, &snapshot);
4598 let start_point = TP::to_point(&range.start, &snapshot);
4599 (start_point..end_point, text)
4600 })
4601 .sorted_by_key(|(range, _)| range.start)
4602 .collect::<Vec<_>>();
4603 buffer.edit(edits, None, cx);
4604 })
4605 }
4606
4607 this.refresh_inline_completion(true, false, cx);
4608 });
4609
4610 let show_new_completions_on_confirm = completion
4611 .confirm
4612 .as_ref()
4613 .map_or(false, |confirm| confirm(intent, cx));
4614 if show_new_completions_on_confirm {
4615 self.show_completions(&ShowCompletions { trigger: None }, cx);
4616 }
4617
4618 let provider = self.completion_provider.as_ref()?;
4619 let apply_edits = provider.apply_additional_edits_for_completion(
4620 buffer_handle,
4621 completion.clone(),
4622 true,
4623 cx,
4624 );
4625
4626 let editor_settings = EditorSettings::get_global(cx);
4627 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4628 // After the code completion is finished, users often want to know what signatures are needed.
4629 // so we should automatically call signature_help
4630 self.show_signature_help(&ShowSignatureHelp, cx);
4631 }
4632
4633 Some(cx.foreground_executor().spawn(async move {
4634 apply_edits.await?;
4635 Ok(())
4636 }))
4637 }
4638
4639 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4640 let mut context_menu = self.context_menu.write();
4641 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4642 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4643 // Toggle if we're selecting the same one
4644 *context_menu = None;
4645 cx.notify();
4646 return;
4647 } else {
4648 // Otherwise, clear it and start a new one
4649 *context_menu = None;
4650 cx.notify();
4651 }
4652 }
4653 drop(context_menu);
4654 let snapshot = self.snapshot(cx);
4655 let deployed_from_indicator = action.deployed_from_indicator;
4656 let mut task = self.code_actions_task.take();
4657 let action = action.clone();
4658 cx.spawn(|editor, mut cx| async move {
4659 while let Some(prev_task) = task {
4660 prev_task.await.log_err();
4661 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4662 }
4663
4664 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4665 if editor.focus_handle.is_focused(cx) {
4666 let multibuffer_point = action
4667 .deployed_from_indicator
4668 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4669 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4670 let (buffer, buffer_row) = snapshot
4671 .buffer_snapshot
4672 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4673 .and_then(|(buffer_snapshot, range)| {
4674 editor
4675 .buffer
4676 .read(cx)
4677 .buffer(buffer_snapshot.remote_id())
4678 .map(|buffer| (buffer, range.start.row))
4679 })?;
4680 let (_, code_actions) = editor
4681 .available_code_actions
4682 .clone()
4683 .and_then(|(location, code_actions)| {
4684 let snapshot = location.buffer.read(cx).snapshot();
4685 let point_range = location.range.to_point(&snapshot);
4686 let point_range = point_range.start.row..=point_range.end.row;
4687 if point_range.contains(&buffer_row) {
4688 Some((location, code_actions))
4689 } else {
4690 None
4691 }
4692 })
4693 .unzip();
4694 let buffer_id = buffer.read(cx).remote_id();
4695 let tasks = editor
4696 .tasks
4697 .get(&(buffer_id, buffer_row))
4698 .map(|t| Arc::new(t.to_owned()));
4699 if tasks.is_none() && code_actions.is_none() {
4700 return None;
4701 }
4702
4703 editor.completion_tasks.clear();
4704 editor.discard_inline_completion(false, cx);
4705 let task_context =
4706 tasks
4707 .as_ref()
4708 .zip(editor.project.clone())
4709 .map(|(tasks, project)| {
4710 let position = Point::new(buffer_row, tasks.column);
4711 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4712 let location = Location {
4713 buffer: buffer.clone(),
4714 range: range_start..range_start,
4715 };
4716 // Fill in the environmental variables from the tree-sitter captures
4717 let mut captured_task_variables = TaskVariables::default();
4718 for (capture_name, value) in tasks.extra_variables.clone() {
4719 captured_task_variables.insert(
4720 task::VariableName::Custom(capture_name.into()),
4721 value.clone(),
4722 );
4723 }
4724 project.update(cx, |project, cx| {
4725 project.task_store().update(cx, |task_store, cx| {
4726 task_store.task_context_for_location(
4727 captured_task_variables,
4728 location,
4729 cx,
4730 )
4731 })
4732 })
4733 });
4734
4735 Some(cx.spawn(|editor, mut cx| async move {
4736 let task_context = match task_context {
4737 Some(task_context) => task_context.await,
4738 None => None,
4739 };
4740 let resolved_tasks =
4741 tasks.zip(task_context).map(|(tasks, task_context)| {
4742 Arc::new(ResolvedTasks {
4743 templates: tasks
4744 .templates
4745 .iter()
4746 .filter_map(|(kind, template)| {
4747 template
4748 .resolve_task(&kind.to_id_base(), &task_context)
4749 .map(|task| (kind.clone(), task))
4750 })
4751 .collect(),
4752 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4753 multibuffer_point.row,
4754 tasks.column,
4755 )),
4756 })
4757 });
4758 let spawn_straight_away = resolved_tasks
4759 .as_ref()
4760 .map_or(false, |tasks| tasks.templates.len() == 1)
4761 && code_actions
4762 .as_ref()
4763 .map_or(true, |actions| actions.is_empty());
4764 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4765 *editor.context_menu.write() =
4766 Some(ContextMenu::CodeActions(CodeActionsMenu {
4767 buffer,
4768 actions: CodeActionContents {
4769 tasks: resolved_tasks,
4770 actions: code_actions,
4771 },
4772 selected_item: Default::default(),
4773 scroll_handle: UniformListScrollHandle::default(),
4774 deployed_from_indicator,
4775 }));
4776 if spawn_straight_away {
4777 if let Some(task) = editor.confirm_code_action(
4778 &ConfirmCodeAction { item_ix: Some(0) },
4779 cx,
4780 ) {
4781 cx.notify();
4782 return task;
4783 }
4784 }
4785 cx.notify();
4786 Task::ready(Ok(()))
4787 }) {
4788 task.await
4789 } else {
4790 Ok(())
4791 }
4792 }))
4793 } else {
4794 Some(Task::ready(Ok(())))
4795 }
4796 })?;
4797 if let Some(task) = spawned_test_task {
4798 task.await?;
4799 }
4800
4801 Ok::<_, anyhow::Error>(())
4802 })
4803 .detach_and_log_err(cx);
4804 }
4805
4806 pub fn confirm_code_action(
4807 &mut self,
4808 action: &ConfirmCodeAction,
4809 cx: &mut ViewContext<Self>,
4810 ) -> Option<Task<Result<()>>> {
4811 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4812 menu
4813 } else {
4814 return None;
4815 };
4816 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4817 let action = actions_menu.actions.get(action_ix)?;
4818 let title = action.label();
4819 let buffer = actions_menu.buffer;
4820 let workspace = self.workspace()?;
4821
4822 match action {
4823 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4824 workspace.update(cx, |workspace, cx| {
4825 workspace::tasks::schedule_resolved_task(
4826 workspace,
4827 task_source_kind,
4828 resolved_task,
4829 false,
4830 cx,
4831 );
4832
4833 Some(Task::ready(Ok(())))
4834 })
4835 }
4836 CodeActionsItem::CodeAction {
4837 excerpt_id,
4838 action,
4839 provider,
4840 } => {
4841 let apply_code_action =
4842 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4843 let workspace = workspace.downgrade();
4844 Some(cx.spawn(|editor, cx| async move {
4845 let project_transaction = apply_code_action.await?;
4846 Self::open_project_transaction(
4847 &editor,
4848 workspace,
4849 project_transaction,
4850 title,
4851 cx,
4852 )
4853 .await
4854 }))
4855 }
4856 }
4857 }
4858
4859 pub async fn open_project_transaction(
4860 this: &WeakView<Editor>,
4861 workspace: WeakView<Workspace>,
4862 transaction: ProjectTransaction,
4863 title: String,
4864 mut cx: AsyncWindowContext,
4865 ) -> Result<()> {
4866 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4867 cx.update(|cx| {
4868 entries.sort_unstable_by_key(|(buffer, _)| {
4869 buffer.read(cx).file().map(|f| f.path().clone())
4870 });
4871 })?;
4872
4873 // If the project transaction's edits are all contained within this editor, then
4874 // avoid opening a new editor to display them.
4875
4876 if let Some((buffer, transaction)) = entries.first() {
4877 if entries.len() == 1 {
4878 let excerpt = this.update(&mut cx, |editor, cx| {
4879 editor
4880 .buffer()
4881 .read(cx)
4882 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4883 })?;
4884 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4885 if excerpted_buffer == *buffer {
4886 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4887 let excerpt_range = excerpt_range.to_offset(buffer);
4888 buffer
4889 .edited_ranges_for_transaction::<usize>(transaction)
4890 .all(|range| {
4891 excerpt_range.start <= range.start
4892 && excerpt_range.end >= range.end
4893 })
4894 })?;
4895
4896 if all_edits_within_excerpt {
4897 return Ok(());
4898 }
4899 }
4900 }
4901 }
4902 } else {
4903 return Ok(());
4904 }
4905
4906 let mut ranges_to_highlight = Vec::new();
4907 let excerpt_buffer = cx.new_model(|cx| {
4908 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4909 for (buffer_handle, transaction) in &entries {
4910 let buffer = buffer_handle.read(cx);
4911 ranges_to_highlight.extend(
4912 multibuffer.push_excerpts_with_context_lines(
4913 buffer_handle.clone(),
4914 buffer
4915 .edited_ranges_for_transaction::<usize>(transaction)
4916 .collect(),
4917 DEFAULT_MULTIBUFFER_CONTEXT,
4918 cx,
4919 ),
4920 );
4921 }
4922 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4923 multibuffer
4924 })?;
4925
4926 workspace.update(&mut cx, |workspace, cx| {
4927 let project = workspace.project().clone();
4928 let editor =
4929 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4930 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4931 editor.update(cx, |editor, cx| {
4932 editor.highlight_background::<Self>(
4933 &ranges_to_highlight,
4934 |theme| theme.editor_highlighted_line_background,
4935 cx,
4936 );
4937 });
4938 })?;
4939
4940 Ok(())
4941 }
4942
4943 pub fn clear_code_action_providers(&mut self) {
4944 self.code_action_providers.clear();
4945 self.available_code_actions.take();
4946 }
4947
4948 pub fn push_code_action_provider(
4949 &mut self,
4950 provider: Arc<dyn CodeActionProvider>,
4951 cx: &mut ViewContext<Self>,
4952 ) {
4953 self.code_action_providers.push(provider);
4954 self.refresh_code_actions(cx);
4955 }
4956
4957 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4958 let buffer = self.buffer.read(cx);
4959 let newest_selection = self.selections.newest_anchor().clone();
4960 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4961 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4962 if start_buffer != end_buffer {
4963 return None;
4964 }
4965
4966 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4967 cx.background_executor()
4968 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4969 .await;
4970
4971 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4972 let providers = this.code_action_providers.clone();
4973 let tasks = this
4974 .code_action_providers
4975 .iter()
4976 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4977 .collect::<Vec<_>>();
4978 (providers, tasks)
4979 })?;
4980
4981 let mut actions = Vec::new();
4982 for (provider, provider_actions) in
4983 providers.into_iter().zip(future::join_all(tasks).await)
4984 {
4985 if let Some(provider_actions) = provider_actions.log_err() {
4986 actions.extend(provider_actions.into_iter().map(|action| {
4987 AvailableCodeAction {
4988 excerpt_id: newest_selection.start.excerpt_id,
4989 action,
4990 provider: provider.clone(),
4991 }
4992 }));
4993 }
4994 }
4995
4996 this.update(&mut cx, |this, cx| {
4997 this.available_code_actions = if actions.is_empty() {
4998 None
4999 } else {
5000 Some((
5001 Location {
5002 buffer: start_buffer,
5003 range: start..end,
5004 },
5005 actions.into(),
5006 ))
5007 };
5008 cx.notify();
5009 })
5010 }));
5011 None
5012 }
5013
5014 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
5015 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
5016 self.show_git_blame_inline = false;
5017
5018 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
5019 cx.background_executor().timer(delay).await;
5020
5021 this.update(&mut cx, |this, cx| {
5022 this.show_git_blame_inline = true;
5023 cx.notify();
5024 })
5025 .log_err();
5026 }));
5027 }
5028 }
5029
5030 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5031 if self.pending_rename.is_some() {
5032 return None;
5033 }
5034
5035 let provider = self.semantics_provider.clone()?;
5036 let buffer = self.buffer.read(cx);
5037 let newest_selection = self.selections.newest_anchor().clone();
5038 let cursor_position = newest_selection.head();
5039 let (cursor_buffer, cursor_buffer_position) =
5040 buffer.text_anchor_for_position(cursor_position, cx)?;
5041 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
5042 if cursor_buffer != tail_buffer {
5043 return None;
5044 }
5045
5046 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5047 cx.background_executor()
5048 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5049 .await;
5050
5051 let highlights = if let Some(highlights) = cx
5052 .update(|cx| {
5053 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5054 })
5055 .ok()
5056 .flatten()
5057 {
5058 highlights.await.log_err()
5059 } else {
5060 None
5061 };
5062
5063 if let Some(highlights) = highlights {
5064 this.update(&mut cx, |this, cx| {
5065 if this.pending_rename.is_some() {
5066 return;
5067 }
5068
5069 let buffer_id = cursor_position.buffer_id;
5070 let buffer = this.buffer.read(cx);
5071 if !buffer
5072 .text_anchor_for_position(cursor_position, cx)
5073 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5074 {
5075 return;
5076 }
5077
5078 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5079 let mut write_ranges = Vec::new();
5080 let mut read_ranges = Vec::new();
5081 for highlight in highlights {
5082 for (excerpt_id, excerpt_range) in
5083 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5084 {
5085 let start = highlight
5086 .range
5087 .start
5088 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5089 let end = highlight
5090 .range
5091 .end
5092 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5093 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5094 continue;
5095 }
5096
5097 let range = Anchor {
5098 buffer_id,
5099 excerpt_id,
5100 text_anchor: start,
5101 }..Anchor {
5102 buffer_id,
5103 excerpt_id,
5104 text_anchor: end,
5105 };
5106 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5107 write_ranges.push(range);
5108 } else {
5109 read_ranges.push(range);
5110 }
5111 }
5112 }
5113
5114 this.highlight_background::<DocumentHighlightRead>(
5115 &read_ranges,
5116 |theme| theme.editor_document_highlight_read_background,
5117 cx,
5118 );
5119 this.highlight_background::<DocumentHighlightWrite>(
5120 &write_ranges,
5121 |theme| theme.editor_document_highlight_write_background,
5122 cx,
5123 );
5124 cx.notify();
5125 })
5126 .log_err();
5127 }
5128 }));
5129 None
5130 }
5131
5132 pub fn refresh_inline_completion(
5133 &mut self,
5134 debounce: bool,
5135 user_requested: bool,
5136 cx: &mut ViewContext<Self>,
5137 ) -> Option<()> {
5138 let provider = self.inline_completion_provider()?;
5139 let cursor = self.selections.newest_anchor().head();
5140 let (buffer, cursor_buffer_position) =
5141 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5142
5143 if !user_requested
5144 && (!self.enable_inline_completions
5145 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5146 {
5147 self.discard_inline_completion(false, cx);
5148 return None;
5149 }
5150
5151 self.update_visible_inline_completion(cx);
5152 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5153 Some(())
5154 }
5155
5156 fn cycle_inline_completion(
5157 &mut self,
5158 direction: Direction,
5159 cx: &mut ViewContext<Self>,
5160 ) -> Option<()> {
5161 let provider = self.inline_completion_provider()?;
5162 let cursor = self.selections.newest_anchor().head();
5163 let (buffer, cursor_buffer_position) =
5164 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5165 if !self.enable_inline_completions
5166 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5167 {
5168 return None;
5169 }
5170
5171 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5172 self.update_visible_inline_completion(cx);
5173
5174 Some(())
5175 }
5176
5177 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5178 if !self.has_active_inline_completion(cx) {
5179 self.refresh_inline_completion(false, true, cx);
5180 return;
5181 }
5182
5183 self.update_visible_inline_completion(cx);
5184 }
5185
5186 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5187 self.show_cursor_names(cx);
5188 }
5189
5190 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5191 self.show_cursor_names = true;
5192 cx.notify();
5193 cx.spawn(|this, mut cx| async move {
5194 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5195 this.update(&mut cx, |this, cx| {
5196 this.show_cursor_names = false;
5197 cx.notify()
5198 })
5199 .ok()
5200 })
5201 .detach();
5202 }
5203
5204 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5205 if self.has_active_inline_completion(cx) {
5206 self.cycle_inline_completion(Direction::Next, cx);
5207 } else {
5208 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5209 if is_copilot_disabled {
5210 cx.propagate();
5211 }
5212 }
5213 }
5214
5215 pub fn previous_inline_completion(
5216 &mut self,
5217 _: &PreviousInlineCompletion,
5218 cx: &mut ViewContext<Self>,
5219 ) {
5220 if self.has_active_inline_completion(cx) {
5221 self.cycle_inline_completion(Direction::Prev, cx);
5222 } else {
5223 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5224 if is_copilot_disabled {
5225 cx.propagate();
5226 }
5227 }
5228 }
5229
5230 pub fn accept_inline_completion(
5231 &mut self,
5232 _: &AcceptInlineCompletion,
5233 cx: &mut ViewContext<Self>,
5234 ) {
5235 let Some(completion) = self.take_active_inline_completion(cx) else {
5236 return;
5237 };
5238 if let Some(provider) = self.inline_completion_provider() {
5239 provider.accept(cx);
5240 }
5241
5242 cx.emit(EditorEvent::InputHandled {
5243 utf16_range_to_replace: None,
5244 text: completion.text.to_string().into(),
5245 });
5246
5247 if let Some(range) = completion.delete_range {
5248 self.change_selections(None, cx, |s| s.select_ranges([range]))
5249 }
5250 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5251 self.refresh_inline_completion(true, true, cx);
5252 cx.notify();
5253 }
5254
5255 pub fn accept_partial_inline_completion(
5256 &mut self,
5257 _: &AcceptPartialInlineCompletion,
5258 cx: &mut ViewContext<Self>,
5259 ) {
5260 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5261 if let Some(completion) = self.take_active_inline_completion(cx) {
5262 let mut partial_completion = completion
5263 .text
5264 .chars()
5265 .by_ref()
5266 .take_while(|c| c.is_alphabetic())
5267 .collect::<String>();
5268 if partial_completion.is_empty() {
5269 partial_completion = completion
5270 .text
5271 .chars()
5272 .by_ref()
5273 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5274 .collect::<String>();
5275 }
5276
5277 cx.emit(EditorEvent::InputHandled {
5278 utf16_range_to_replace: None,
5279 text: partial_completion.clone().into(),
5280 });
5281
5282 if let Some(range) = completion.delete_range {
5283 self.change_selections(None, cx, |s| s.select_ranges([range]))
5284 }
5285 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5286
5287 self.refresh_inline_completion(true, true, cx);
5288 cx.notify();
5289 }
5290 }
5291 }
5292
5293 fn discard_inline_completion(
5294 &mut self,
5295 should_report_inline_completion_event: bool,
5296 cx: &mut ViewContext<Self>,
5297 ) -> bool {
5298 if let Some(provider) = self.inline_completion_provider() {
5299 provider.discard(should_report_inline_completion_event, cx);
5300 }
5301
5302 self.take_active_inline_completion(cx).is_some()
5303 }
5304
5305 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5306 if let Some(completion) = self.active_inline_completion.as_ref() {
5307 let buffer = self.buffer.read(cx).read(cx);
5308 completion.position.is_valid(&buffer)
5309 } else {
5310 false
5311 }
5312 }
5313
5314 fn take_active_inline_completion(
5315 &mut self,
5316 cx: &mut ViewContext<Self>,
5317 ) -> Option<CompletionState> {
5318 let completion = self.active_inline_completion.take()?;
5319 let render_inlay_ids = completion.render_inlay_ids.clone();
5320 self.display_map.update(cx, |map, cx| {
5321 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5322 });
5323 let buffer = self.buffer.read(cx).read(cx);
5324
5325 if completion.position.is_valid(&buffer) {
5326 Some(completion)
5327 } else {
5328 None
5329 }
5330 }
5331
5332 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5333 let selection = self.selections.newest_anchor();
5334 let cursor = selection.head();
5335
5336 let excerpt_id = cursor.excerpt_id;
5337
5338 if self.context_menu.read().is_none()
5339 && self.completion_tasks.is_empty()
5340 && selection.start == selection.end
5341 {
5342 if let Some(provider) = self.inline_completion_provider() {
5343 if let Some((buffer, cursor_buffer_position)) =
5344 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5345 {
5346 if let Some(proposal) =
5347 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5348 {
5349 let mut to_remove = Vec::new();
5350 if let Some(completion) = self.active_inline_completion.take() {
5351 to_remove.extend(completion.render_inlay_ids.iter());
5352 }
5353
5354 let to_add = proposal
5355 .inlays
5356 .iter()
5357 .filter_map(|inlay| {
5358 let snapshot = self.buffer.read(cx).snapshot(cx);
5359 let id = post_inc(&mut self.next_inlay_id);
5360 match inlay {
5361 InlayProposal::Hint(position, hint) => {
5362 let position =
5363 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5364 Some(Inlay::hint(id, position, hint))
5365 }
5366 InlayProposal::Suggestion(position, text) => {
5367 let position =
5368 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5369 Some(Inlay::suggestion(id, position, text.clone()))
5370 }
5371 }
5372 })
5373 .collect_vec();
5374
5375 self.active_inline_completion = Some(CompletionState {
5376 position: cursor,
5377 text: proposal.text,
5378 delete_range: proposal.delete_range.and_then(|range| {
5379 let snapshot = self.buffer.read(cx).snapshot(cx);
5380 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5381 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5382 Some(start?..end?)
5383 }),
5384 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5385 });
5386
5387 self.display_map
5388 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5389
5390 cx.notify();
5391 return;
5392 }
5393 }
5394 }
5395 }
5396
5397 self.discard_inline_completion(false, cx);
5398 }
5399
5400 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5401 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5402 }
5403
5404 fn render_code_actions_indicator(
5405 &self,
5406 _style: &EditorStyle,
5407 row: DisplayRow,
5408 is_active: bool,
5409 cx: &mut ViewContext<Self>,
5410 ) -> Option<IconButton> {
5411 if self.available_code_actions.is_some() {
5412 Some(
5413 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5414 .shape(ui::IconButtonShape::Square)
5415 .icon_size(IconSize::XSmall)
5416 .icon_color(Color::Muted)
5417 .selected(is_active)
5418 .tooltip({
5419 let focus_handle = self.focus_handle.clone();
5420 move |cx| {
5421 Tooltip::for_action_in(
5422 "Toggle Code Actions",
5423 &ToggleCodeActions {
5424 deployed_from_indicator: None,
5425 },
5426 &focus_handle,
5427 cx,
5428 )
5429 }
5430 })
5431 .on_click(cx.listener(move |editor, _e, cx| {
5432 editor.focus(cx);
5433 editor.toggle_code_actions(
5434 &ToggleCodeActions {
5435 deployed_from_indicator: Some(row),
5436 },
5437 cx,
5438 );
5439 })),
5440 )
5441 } else {
5442 None
5443 }
5444 }
5445
5446 fn clear_tasks(&mut self) {
5447 self.tasks.clear()
5448 }
5449
5450 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5451 if self.tasks.insert(key, value).is_some() {
5452 // This case should hopefully be rare, but just in case...
5453 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5454 }
5455 }
5456
5457 fn render_run_indicator(
5458 &self,
5459 _style: &EditorStyle,
5460 is_active: bool,
5461 row: DisplayRow,
5462 cx: &mut ViewContext<Self>,
5463 ) -> IconButton {
5464 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5465 .shape(ui::IconButtonShape::Square)
5466 .icon_size(IconSize::XSmall)
5467 .icon_color(Color::Muted)
5468 .selected(is_active)
5469 .on_click(cx.listener(move |editor, _e, cx| {
5470 editor.focus(cx);
5471 editor.toggle_code_actions(
5472 &ToggleCodeActions {
5473 deployed_from_indicator: Some(row),
5474 },
5475 cx,
5476 );
5477 }))
5478 }
5479
5480 pub fn context_menu_visible(&self) -> bool {
5481 self.context_menu
5482 .read()
5483 .as_ref()
5484 .map_or(false, |menu| menu.visible())
5485 }
5486
5487 fn render_context_menu(
5488 &self,
5489 cursor_position: DisplayPoint,
5490 style: &EditorStyle,
5491 max_height: Pixels,
5492 cx: &mut ViewContext<Editor>,
5493 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5494 self.context_menu.read().as_ref().map(|menu| {
5495 menu.render(
5496 cursor_position,
5497 style,
5498 max_height,
5499 self.workspace.as_ref().map(|(w, _)| w.clone()),
5500 cx,
5501 )
5502 })
5503 }
5504
5505 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5506 cx.notify();
5507 self.completion_tasks.clear();
5508 let context_menu = self.context_menu.write().take();
5509 if context_menu.is_some() {
5510 self.update_visible_inline_completion(cx);
5511 }
5512 context_menu
5513 }
5514
5515 pub fn insert_snippet(
5516 &mut self,
5517 insertion_ranges: &[Range<usize>],
5518 snippet: Snippet,
5519 cx: &mut ViewContext<Self>,
5520 ) -> Result<()> {
5521 struct Tabstop<T> {
5522 is_end_tabstop: bool,
5523 ranges: Vec<Range<T>>,
5524 }
5525
5526 let tabstops = self.buffer.update(cx, |buffer, cx| {
5527 let snippet_text: Arc<str> = snippet.text.clone().into();
5528 buffer.edit(
5529 insertion_ranges
5530 .iter()
5531 .cloned()
5532 .map(|range| (range, snippet_text.clone())),
5533 Some(AutoindentMode::EachLine),
5534 cx,
5535 );
5536
5537 let snapshot = &*buffer.read(cx);
5538 let snippet = &snippet;
5539 snippet
5540 .tabstops
5541 .iter()
5542 .map(|tabstop| {
5543 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5544 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5545 });
5546 let mut tabstop_ranges = tabstop
5547 .iter()
5548 .flat_map(|tabstop_range| {
5549 let mut delta = 0_isize;
5550 insertion_ranges.iter().map(move |insertion_range| {
5551 let insertion_start = insertion_range.start as isize + delta;
5552 delta +=
5553 snippet.text.len() as isize - insertion_range.len() as isize;
5554
5555 let start = ((insertion_start + tabstop_range.start) as usize)
5556 .min(snapshot.len());
5557 let end = ((insertion_start + tabstop_range.end) as usize)
5558 .min(snapshot.len());
5559 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5560 })
5561 })
5562 .collect::<Vec<_>>();
5563 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5564
5565 Tabstop {
5566 is_end_tabstop,
5567 ranges: tabstop_ranges,
5568 }
5569 })
5570 .collect::<Vec<_>>()
5571 });
5572 if let Some(tabstop) = tabstops.first() {
5573 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5574 s.select_ranges(tabstop.ranges.iter().cloned());
5575 });
5576
5577 // If we're already at the last tabstop and it's at the end of the snippet,
5578 // we're done, we don't need to keep the state around.
5579 if !tabstop.is_end_tabstop {
5580 let ranges = tabstops
5581 .into_iter()
5582 .map(|tabstop| tabstop.ranges)
5583 .collect::<Vec<_>>();
5584 self.snippet_stack.push(SnippetState {
5585 active_index: 0,
5586 ranges,
5587 });
5588 }
5589
5590 // Check whether the just-entered snippet ends with an auto-closable bracket.
5591 if self.autoclose_regions.is_empty() {
5592 let snapshot = self.buffer.read(cx).snapshot(cx);
5593 for selection in &mut self.selections.all::<Point>(cx) {
5594 let selection_head = selection.head();
5595 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5596 continue;
5597 };
5598
5599 let mut bracket_pair = None;
5600 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5601 let prev_chars = snapshot
5602 .reversed_chars_at(selection_head)
5603 .collect::<String>();
5604 for (pair, enabled) in scope.brackets() {
5605 if enabled
5606 && pair.close
5607 && prev_chars.starts_with(pair.start.as_str())
5608 && next_chars.starts_with(pair.end.as_str())
5609 {
5610 bracket_pair = Some(pair.clone());
5611 break;
5612 }
5613 }
5614 if let Some(pair) = bracket_pair {
5615 let start = snapshot.anchor_after(selection_head);
5616 let end = snapshot.anchor_after(selection_head);
5617 self.autoclose_regions.push(AutocloseRegion {
5618 selection_id: selection.id,
5619 range: start..end,
5620 pair,
5621 });
5622 }
5623 }
5624 }
5625 }
5626 Ok(())
5627 }
5628
5629 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5630 self.move_to_snippet_tabstop(Bias::Right, cx)
5631 }
5632
5633 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5634 self.move_to_snippet_tabstop(Bias::Left, cx)
5635 }
5636
5637 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5638 if let Some(mut snippet) = self.snippet_stack.pop() {
5639 match bias {
5640 Bias::Left => {
5641 if snippet.active_index > 0 {
5642 snippet.active_index -= 1;
5643 } else {
5644 self.snippet_stack.push(snippet);
5645 return false;
5646 }
5647 }
5648 Bias::Right => {
5649 if snippet.active_index + 1 < snippet.ranges.len() {
5650 snippet.active_index += 1;
5651 } else {
5652 self.snippet_stack.push(snippet);
5653 return false;
5654 }
5655 }
5656 }
5657 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5658 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5659 s.select_anchor_ranges(current_ranges.iter().cloned())
5660 });
5661 // If snippet state is not at the last tabstop, push it back on the stack
5662 if snippet.active_index + 1 < snippet.ranges.len() {
5663 self.snippet_stack.push(snippet);
5664 }
5665 return true;
5666 }
5667 }
5668
5669 false
5670 }
5671
5672 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5673 self.transact(cx, |this, cx| {
5674 this.select_all(&SelectAll, cx);
5675 this.insert("", cx);
5676 });
5677 }
5678
5679 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5680 self.transact(cx, |this, cx| {
5681 this.select_autoclose_pair(cx);
5682 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5683 if !this.linked_edit_ranges.is_empty() {
5684 let selections = this.selections.all::<MultiBufferPoint>(cx);
5685 let snapshot = this.buffer.read(cx).snapshot(cx);
5686
5687 for selection in selections.iter() {
5688 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5689 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5690 if selection_start.buffer_id != selection_end.buffer_id {
5691 continue;
5692 }
5693 if let Some(ranges) =
5694 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5695 {
5696 for (buffer, entries) in ranges {
5697 linked_ranges.entry(buffer).or_default().extend(entries);
5698 }
5699 }
5700 }
5701 }
5702
5703 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5704 if !this.selections.line_mode {
5705 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5706 for selection in &mut selections {
5707 if selection.is_empty() {
5708 let old_head = selection.head();
5709 let mut new_head =
5710 movement::left(&display_map, old_head.to_display_point(&display_map))
5711 .to_point(&display_map);
5712 if let Some((buffer, line_buffer_range)) = display_map
5713 .buffer_snapshot
5714 .buffer_line_for_row(MultiBufferRow(old_head.row))
5715 {
5716 let indent_size =
5717 buffer.indent_size_for_line(line_buffer_range.start.row);
5718 let indent_len = match indent_size.kind {
5719 IndentKind::Space => {
5720 buffer.settings_at(line_buffer_range.start, cx).tab_size
5721 }
5722 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5723 };
5724 if old_head.column <= indent_size.len && old_head.column > 0 {
5725 let indent_len = indent_len.get();
5726 new_head = cmp::min(
5727 new_head,
5728 MultiBufferPoint::new(
5729 old_head.row,
5730 ((old_head.column - 1) / indent_len) * indent_len,
5731 ),
5732 );
5733 }
5734 }
5735
5736 selection.set_head(new_head, SelectionGoal::None);
5737 }
5738 }
5739 }
5740
5741 this.signature_help_state.set_backspace_pressed(true);
5742 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5743 this.insert("", cx);
5744 let empty_str: Arc<str> = Arc::from("");
5745 for (buffer, edits) in linked_ranges {
5746 let snapshot = buffer.read(cx).snapshot();
5747 use text::ToPoint as TP;
5748
5749 let edits = edits
5750 .into_iter()
5751 .map(|range| {
5752 let end_point = TP::to_point(&range.end, &snapshot);
5753 let mut start_point = TP::to_point(&range.start, &snapshot);
5754
5755 if end_point == start_point {
5756 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5757 .saturating_sub(1);
5758 start_point = TP::to_point(&offset, &snapshot);
5759 };
5760
5761 (start_point..end_point, empty_str.clone())
5762 })
5763 .sorted_by_key(|(range, _)| range.start)
5764 .collect::<Vec<_>>();
5765 buffer.update(cx, |this, cx| {
5766 this.edit(edits, None, cx);
5767 })
5768 }
5769 this.refresh_inline_completion(true, false, cx);
5770 linked_editing_ranges::refresh_linked_ranges(this, cx);
5771 });
5772 }
5773
5774 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5775 self.transact(cx, |this, cx| {
5776 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5777 let line_mode = s.line_mode;
5778 s.move_with(|map, selection| {
5779 if selection.is_empty() && !line_mode {
5780 let cursor = movement::right(map, selection.head());
5781 selection.end = cursor;
5782 selection.reversed = true;
5783 selection.goal = SelectionGoal::None;
5784 }
5785 })
5786 });
5787 this.insert("", cx);
5788 this.refresh_inline_completion(true, false, cx);
5789 });
5790 }
5791
5792 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5793 if self.move_to_prev_snippet_tabstop(cx) {
5794 return;
5795 }
5796
5797 self.outdent(&Outdent, cx);
5798 }
5799
5800 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5801 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5802 return;
5803 }
5804
5805 let mut selections = self.selections.all_adjusted(cx);
5806 let buffer = self.buffer.read(cx);
5807 let snapshot = buffer.snapshot(cx);
5808 let rows_iter = selections.iter().map(|s| s.head().row);
5809 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5810
5811 let mut edits = Vec::new();
5812 let mut prev_edited_row = 0;
5813 let mut row_delta = 0;
5814 for selection in &mut selections {
5815 if selection.start.row != prev_edited_row {
5816 row_delta = 0;
5817 }
5818 prev_edited_row = selection.end.row;
5819
5820 // If the selection is non-empty, then increase the indentation of the selected lines.
5821 if !selection.is_empty() {
5822 row_delta =
5823 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5824 continue;
5825 }
5826
5827 // If the selection is empty and the cursor is in the leading whitespace before the
5828 // suggested indentation, then auto-indent the line.
5829 let cursor = selection.head();
5830 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5831 if let Some(suggested_indent) =
5832 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5833 {
5834 if cursor.column < suggested_indent.len
5835 && cursor.column <= current_indent.len
5836 && current_indent.len <= suggested_indent.len
5837 {
5838 selection.start = Point::new(cursor.row, suggested_indent.len);
5839 selection.end = selection.start;
5840 if row_delta == 0 {
5841 edits.extend(Buffer::edit_for_indent_size_adjustment(
5842 cursor.row,
5843 current_indent,
5844 suggested_indent,
5845 ));
5846 row_delta = suggested_indent.len - current_indent.len;
5847 }
5848 continue;
5849 }
5850 }
5851
5852 // Otherwise, insert a hard or soft tab.
5853 let settings = buffer.settings_at(cursor, cx);
5854 let tab_size = if settings.hard_tabs {
5855 IndentSize::tab()
5856 } else {
5857 let tab_size = settings.tab_size.get();
5858 let char_column = snapshot
5859 .text_for_range(Point::new(cursor.row, 0)..cursor)
5860 .flat_map(str::chars)
5861 .count()
5862 + row_delta as usize;
5863 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5864 IndentSize::spaces(chars_to_next_tab_stop)
5865 };
5866 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5867 selection.end = selection.start;
5868 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5869 row_delta += tab_size.len;
5870 }
5871
5872 self.transact(cx, |this, cx| {
5873 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5874 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5875 this.refresh_inline_completion(true, false, cx);
5876 });
5877 }
5878
5879 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5880 if self.read_only(cx) {
5881 return;
5882 }
5883 let mut selections = self.selections.all::<Point>(cx);
5884 let mut prev_edited_row = 0;
5885 let mut row_delta = 0;
5886 let mut edits = Vec::new();
5887 let buffer = self.buffer.read(cx);
5888 let snapshot = buffer.snapshot(cx);
5889 for selection in &mut selections {
5890 if selection.start.row != prev_edited_row {
5891 row_delta = 0;
5892 }
5893 prev_edited_row = selection.end.row;
5894
5895 row_delta =
5896 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5897 }
5898
5899 self.transact(cx, |this, cx| {
5900 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5901 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5902 });
5903 }
5904
5905 fn indent_selection(
5906 buffer: &MultiBuffer,
5907 snapshot: &MultiBufferSnapshot,
5908 selection: &mut Selection<Point>,
5909 edits: &mut Vec<(Range<Point>, String)>,
5910 delta_for_start_row: u32,
5911 cx: &AppContext,
5912 ) -> u32 {
5913 let settings = buffer.settings_at(selection.start, cx);
5914 let tab_size = settings.tab_size.get();
5915 let indent_kind = if settings.hard_tabs {
5916 IndentKind::Tab
5917 } else {
5918 IndentKind::Space
5919 };
5920 let mut start_row = selection.start.row;
5921 let mut end_row = selection.end.row + 1;
5922
5923 // If a selection ends at the beginning of a line, don't indent
5924 // that last line.
5925 if selection.end.column == 0 && selection.end.row > selection.start.row {
5926 end_row -= 1;
5927 }
5928
5929 // Avoid re-indenting a row that has already been indented by a
5930 // previous selection, but still update this selection's column
5931 // to reflect that indentation.
5932 if delta_for_start_row > 0 {
5933 start_row += 1;
5934 selection.start.column += delta_for_start_row;
5935 if selection.end.row == selection.start.row {
5936 selection.end.column += delta_for_start_row;
5937 }
5938 }
5939
5940 let mut delta_for_end_row = 0;
5941 let has_multiple_rows = start_row + 1 != end_row;
5942 for row in start_row..end_row {
5943 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5944 let indent_delta = match (current_indent.kind, indent_kind) {
5945 (IndentKind::Space, IndentKind::Space) => {
5946 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5947 IndentSize::spaces(columns_to_next_tab_stop)
5948 }
5949 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5950 (_, IndentKind::Tab) => IndentSize::tab(),
5951 };
5952
5953 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5954 0
5955 } else {
5956 selection.start.column
5957 };
5958 let row_start = Point::new(row, start);
5959 edits.push((
5960 row_start..row_start,
5961 indent_delta.chars().collect::<String>(),
5962 ));
5963
5964 // Update this selection's endpoints to reflect the indentation.
5965 if row == selection.start.row {
5966 selection.start.column += indent_delta.len;
5967 }
5968 if row == selection.end.row {
5969 selection.end.column += indent_delta.len;
5970 delta_for_end_row = indent_delta.len;
5971 }
5972 }
5973
5974 if selection.start.row == selection.end.row {
5975 delta_for_start_row + delta_for_end_row
5976 } else {
5977 delta_for_end_row
5978 }
5979 }
5980
5981 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5982 if self.read_only(cx) {
5983 return;
5984 }
5985 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5986 let selections = self.selections.all::<Point>(cx);
5987 let mut deletion_ranges = Vec::new();
5988 let mut last_outdent = None;
5989 {
5990 let buffer = self.buffer.read(cx);
5991 let snapshot = buffer.snapshot(cx);
5992 for selection in &selections {
5993 let settings = buffer.settings_at(selection.start, cx);
5994 let tab_size = settings.tab_size.get();
5995 let mut rows = selection.spanned_rows(false, &display_map);
5996
5997 // Avoid re-outdenting a row that has already been outdented by a
5998 // previous selection.
5999 if let Some(last_row) = last_outdent {
6000 if last_row == rows.start {
6001 rows.start = rows.start.next_row();
6002 }
6003 }
6004 let has_multiple_rows = rows.len() > 1;
6005 for row in rows.iter_rows() {
6006 let indent_size = snapshot.indent_size_for_line(row);
6007 if indent_size.len > 0 {
6008 let deletion_len = match indent_size.kind {
6009 IndentKind::Space => {
6010 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6011 if columns_to_prev_tab_stop == 0 {
6012 tab_size
6013 } else {
6014 columns_to_prev_tab_stop
6015 }
6016 }
6017 IndentKind::Tab => 1,
6018 };
6019 let start = if has_multiple_rows
6020 || deletion_len > selection.start.column
6021 || indent_size.len < selection.start.column
6022 {
6023 0
6024 } else {
6025 selection.start.column - deletion_len
6026 };
6027 deletion_ranges.push(
6028 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6029 );
6030 last_outdent = Some(row);
6031 }
6032 }
6033 }
6034 }
6035
6036 self.transact(cx, |this, cx| {
6037 this.buffer.update(cx, |buffer, cx| {
6038 let empty_str: Arc<str> = Arc::default();
6039 buffer.edit(
6040 deletion_ranges
6041 .into_iter()
6042 .map(|range| (range, empty_str.clone())),
6043 None,
6044 cx,
6045 );
6046 });
6047 let selections = this.selections.all::<usize>(cx);
6048 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6049 });
6050 }
6051
6052 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
6053 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6054 let selections = self.selections.all::<Point>(cx);
6055
6056 let mut new_cursors = Vec::new();
6057 let mut edit_ranges = Vec::new();
6058 let mut selections = selections.iter().peekable();
6059 while let Some(selection) = selections.next() {
6060 let mut rows = selection.spanned_rows(false, &display_map);
6061 let goal_display_column = selection.head().to_display_point(&display_map).column();
6062
6063 // Accumulate contiguous regions of rows that we want to delete.
6064 while let Some(next_selection) = selections.peek() {
6065 let next_rows = next_selection.spanned_rows(false, &display_map);
6066 if next_rows.start <= rows.end {
6067 rows.end = next_rows.end;
6068 selections.next().unwrap();
6069 } else {
6070 break;
6071 }
6072 }
6073
6074 let buffer = &display_map.buffer_snapshot;
6075 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6076 let edit_end;
6077 let cursor_buffer_row;
6078 if buffer.max_point().row >= rows.end.0 {
6079 // If there's a line after the range, delete the \n from the end of the row range
6080 // and position the cursor on the next line.
6081 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6082 cursor_buffer_row = rows.end;
6083 } else {
6084 // If there isn't a line after the range, delete the \n from the line before the
6085 // start of the row range and position the cursor there.
6086 edit_start = edit_start.saturating_sub(1);
6087 edit_end = buffer.len();
6088 cursor_buffer_row = rows.start.previous_row();
6089 }
6090
6091 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6092 *cursor.column_mut() =
6093 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6094
6095 new_cursors.push((
6096 selection.id,
6097 buffer.anchor_after(cursor.to_point(&display_map)),
6098 ));
6099 edit_ranges.push(edit_start..edit_end);
6100 }
6101
6102 self.transact(cx, |this, cx| {
6103 let buffer = this.buffer.update(cx, |buffer, cx| {
6104 let empty_str: Arc<str> = Arc::default();
6105 buffer.edit(
6106 edit_ranges
6107 .into_iter()
6108 .map(|range| (range, empty_str.clone())),
6109 None,
6110 cx,
6111 );
6112 buffer.snapshot(cx)
6113 });
6114 let new_selections = new_cursors
6115 .into_iter()
6116 .map(|(id, cursor)| {
6117 let cursor = cursor.to_point(&buffer);
6118 Selection {
6119 id,
6120 start: cursor,
6121 end: cursor,
6122 reversed: false,
6123 goal: SelectionGoal::None,
6124 }
6125 })
6126 .collect();
6127
6128 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6129 s.select(new_selections);
6130 });
6131 });
6132 }
6133
6134 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6135 if self.read_only(cx) {
6136 return;
6137 }
6138 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6139 for selection in self.selections.all::<Point>(cx) {
6140 let start = MultiBufferRow(selection.start.row);
6141 let end = if selection.start.row == selection.end.row {
6142 MultiBufferRow(selection.start.row + 1)
6143 } else {
6144 MultiBufferRow(selection.end.row)
6145 };
6146
6147 if let Some(last_row_range) = row_ranges.last_mut() {
6148 if start <= last_row_range.end {
6149 last_row_range.end = end;
6150 continue;
6151 }
6152 }
6153 row_ranges.push(start..end);
6154 }
6155
6156 let snapshot = self.buffer.read(cx).snapshot(cx);
6157 let mut cursor_positions = Vec::new();
6158 for row_range in &row_ranges {
6159 let anchor = snapshot.anchor_before(Point::new(
6160 row_range.end.previous_row().0,
6161 snapshot.line_len(row_range.end.previous_row()),
6162 ));
6163 cursor_positions.push(anchor..anchor);
6164 }
6165
6166 self.transact(cx, |this, cx| {
6167 for row_range in row_ranges.into_iter().rev() {
6168 for row in row_range.iter_rows().rev() {
6169 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6170 let next_line_row = row.next_row();
6171 let indent = snapshot.indent_size_for_line(next_line_row);
6172 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6173
6174 let replace = if snapshot.line_len(next_line_row) > indent.len {
6175 " "
6176 } else {
6177 ""
6178 };
6179
6180 this.buffer.update(cx, |buffer, cx| {
6181 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6182 });
6183 }
6184 }
6185
6186 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6187 s.select_anchor_ranges(cursor_positions)
6188 });
6189 });
6190 }
6191
6192 pub fn sort_lines_case_sensitive(
6193 &mut self,
6194 _: &SortLinesCaseSensitive,
6195 cx: &mut ViewContext<Self>,
6196 ) {
6197 self.manipulate_lines(cx, |lines| lines.sort())
6198 }
6199
6200 pub fn sort_lines_case_insensitive(
6201 &mut self,
6202 _: &SortLinesCaseInsensitive,
6203 cx: &mut ViewContext<Self>,
6204 ) {
6205 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6206 }
6207
6208 pub fn unique_lines_case_insensitive(
6209 &mut self,
6210 _: &UniqueLinesCaseInsensitive,
6211 cx: &mut ViewContext<Self>,
6212 ) {
6213 self.manipulate_lines(cx, |lines| {
6214 let mut seen = HashSet::default();
6215 lines.retain(|line| seen.insert(line.to_lowercase()));
6216 })
6217 }
6218
6219 pub fn unique_lines_case_sensitive(
6220 &mut self,
6221 _: &UniqueLinesCaseSensitive,
6222 cx: &mut ViewContext<Self>,
6223 ) {
6224 self.manipulate_lines(cx, |lines| {
6225 let mut seen = HashSet::default();
6226 lines.retain(|line| seen.insert(*line));
6227 })
6228 }
6229
6230 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6231 let mut revert_changes = HashMap::default();
6232 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6233 for hunk in hunks_for_rows(
6234 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6235 &multi_buffer_snapshot,
6236 ) {
6237 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6238 }
6239 if !revert_changes.is_empty() {
6240 self.transact(cx, |editor, cx| {
6241 editor.revert(revert_changes, cx);
6242 });
6243 }
6244 }
6245
6246 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6247 let Some(project) = self.project.clone() else {
6248 return;
6249 };
6250 self.reload(project, cx).detach_and_notify_err(cx);
6251 }
6252
6253 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6254 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6255 if !revert_changes.is_empty() {
6256 self.transact(cx, |editor, cx| {
6257 editor.revert(revert_changes, cx);
6258 });
6259 }
6260 }
6261
6262 fn apply_selected_diff_hunks(&mut self, _: &ApplyDiffHunk, cx: &mut ViewContext<Self>) {
6263 let snapshot = self.buffer.read(cx).snapshot(cx);
6264 let hunks = hunks_for_selections(&snapshot, &self.selections.disjoint_anchors());
6265 let mut ranges_by_buffer = HashMap::default();
6266 self.transact(cx, |editor, cx| {
6267 for hunk in hunks {
6268 if let Some(buffer) = editor.buffer.read(cx).buffer(hunk.buffer_id) {
6269 ranges_by_buffer
6270 .entry(buffer.clone())
6271 .or_insert_with(Vec::new)
6272 .push(hunk.buffer_range.to_offset(buffer.read(cx)));
6273 }
6274 }
6275
6276 for (buffer, ranges) in ranges_by_buffer {
6277 buffer.update(cx, |buffer, cx| {
6278 buffer.merge_into_base(ranges, cx);
6279 });
6280 }
6281 });
6282 }
6283
6284 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6285 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6286 let project_path = buffer.read(cx).project_path(cx)?;
6287 let project = self.project.as_ref()?.read(cx);
6288 let entry = project.entry_for_path(&project_path, cx)?;
6289 let abs_path = project.absolute_path(&project_path, cx)?;
6290 let parent = if entry.is_symlink {
6291 abs_path.canonicalize().ok()?
6292 } else {
6293 abs_path
6294 }
6295 .parent()?
6296 .to_path_buf();
6297 Some(parent)
6298 }) {
6299 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6300 }
6301 }
6302
6303 fn gather_revert_changes(
6304 &mut self,
6305 selections: &[Selection<Anchor>],
6306 cx: &mut ViewContext<'_, Editor>,
6307 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6308 let mut revert_changes = HashMap::default();
6309 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6310 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6311 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6312 }
6313 revert_changes
6314 }
6315
6316 pub fn prepare_revert_change(
6317 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6318 multi_buffer: &Model<MultiBuffer>,
6319 hunk: &MultiBufferDiffHunk,
6320 cx: &AppContext,
6321 ) -> Option<()> {
6322 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6323 let buffer = buffer.read(cx);
6324 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6325 let buffer_snapshot = buffer.snapshot();
6326 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6327 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6328 probe
6329 .0
6330 .start
6331 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6332 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6333 }) {
6334 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6335 Some(())
6336 } else {
6337 None
6338 }
6339 }
6340
6341 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6342 self.manipulate_lines(cx, |lines| lines.reverse())
6343 }
6344
6345 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6346 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6347 }
6348
6349 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6350 where
6351 Fn: FnMut(&mut Vec<&str>),
6352 {
6353 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6354 let buffer = self.buffer.read(cx).snapshot(cx);
6355
6356 let mut edits = Vec::new();
6357
6358 let selections = self.selections.all::<Point>(cx);
6359 let mut selections = selections.iter().peekable();
6360 let mut contiguous_row_selections = Vec::new();
6361 let mut new_selections = Vec::new();
6362 let mut added_lines = 0;
6363 let mut removed_lines = 0;
6364
6365 while let Some(selection) = selections.next() {
6366 let (start_row, end_row) = consume_contiguous_rows(
6367 &mut contiguous_row_selections,
6368 selection,
6369 &display_map,
6370 &mut selections,
6371 );
6372
6373 let start_point = Point::new(start_row.0, 0);
6374 let end_point = Point::new(
6375 end_row.previous_row().0,
6376 buffer.line_len(end_row.previous_row()),
6377 );
6378 let text = buffer
6379 .text_for_range(start_point..end_point)
6380 .collect::<String>();
6381
6382 let mut lines = text.split('\n').collect_vec();
6383
6384 let lines_before = lines.len();
6385 callback(&mut lines);
6386 let lines_after = lines.len();
6387
6388 edits.push((start_point..end_point, lines.join("\n")));
6389
6390 // Selections must change based on added and removed line count
6391 let start_row =
6392 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6393 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6394 new_selections.push(Selection {
6395 id: selection.id,
6396 start: start_row,
6397 end: end_row,
6398 goal: SelectionGoal::None,
6399 reversed: selection.reversed,
6400 });
6401
6402 if lines_after > lines_before {
6403 added_lines += lines_after - lines_before;
6404 } else if lines_before > lines_after {
6405 removed_lines += lines_before - lines_after;
6406 }
6407 }
6408
6409 self.transact(cx, |this, cx| {
6410 let buffer = this.buffer.update(cx, |buffer, cx| {
6411 buffer.edit(edits, None, cx);
6412 buffer.snapshot(cx)
6413 });
6414
6415 // Recalculate offsets on newly edited buffer
6416 let new_selections = new_selections
6417 .iter()
6418 .map(|s| {
6419 let start_point = Point::new(s.start.0, 0);
6420 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6421 Selection {
6422 id: s.id,
6423 start: buffer.point_to_offset(start_point),
6424 end: buffer.point_to_offset(end_point),
6425 goal: s.goal,
6426 reversed: s.reversed,
6427 }
6428 })
6429 .collect();
6430
6431 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6432 s.select(new_selections);
6433 });
6434
6435 this.request_autoscroll(Autoscroll::fit(), cx);
6436 });
6437 }
6438
6439 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6440 self.manipulate_text(cx, |text| text.to_uppercase())
6441 }
6442
6443 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6444 self.manipulate_text(cx, |text| text.to_lowercase())
6445 }
6446
6447 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6448 self.manipulate_text(cx, |text| {
6449 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6450 // https://github.com/rutrum/convert-case/issues/16
6451 text.split('\n')
6452 .map(|line| line.to_case(Case::Title))
6453 .join("\n")
6454 })
6455 }
6456
6457 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6458 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6459 }
6460
6461 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6462 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6463 }
6464
6465 pub fn convert_to_upper_camel_case(
6466 &mut self,
6467 _: &ConvertToUpperCamelCase,
6468 cx: &mut ViewContext<Self>,
6469 ) {
6470 self.manipulate_text(cx, |text| {
6471 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6472 // https://github.com/rutrum/convert-case/issues/16
6473 text.split('\n')
6474 .map(|line| line.to_case(Case::UpperCamel))
6475 .join("\n")
6476 })
6477 }
6478
6479 pub fn convert_to_lower_camel_case(
6480 &mut self,
6481 _: &ConvertToLowerCamelCase,
6482 cx: &mut ViewContext<Self>,
6483 ) {
6484 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6485 }
6486
6487 pub fn convert_to_opposite_case(
6488 &mut self,
6489 _: &ConvertToOppositeCase,
6490 cx: &mut ViewContext<Self>,
6491 ) {
6492 self.manipulate_text(cx, |text| {
6493 text.chars()
6494 .fold(String::with_capacity(text.len()), |mut t, c| {
6495 if c.is_uppercase() {
6496 t.extend(c.to_lowercase());
6497 } else {
6498 t.extend(c.to_uppercase());
6499 }
6500 t
6501 })
6502 })
6503 }
6504
6505 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6506 where
6507 Fn: FnMut(&str) -> String,
6508 {
6509 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6510 let buffer = self.buffer.read(cx).snapshot(cx);
6511
6512 let mut new_selections = Vec::new();
6513 let mut edits = Vec::new();
6514 let mut selection_adjustment = 0i32;
6515
6516 for selection in self.selections.all::<usize>(cx) {
6517 let selection_is_empty = selection.is_empty();
6518
6519 let (start, end) = if selection_is_empty {
6520 let word_range = movement::surrounding_word(
6521 &display_map,
6522 selection.start.to_display_point(&display_map),
6523 );
6524 let start = word_range.start.to_offset(&display_map, Bias::Left);
6525 let end = word_range.end.to_offset(&display_map, Bias::Left);
6526 (start, end)
6527 } else {
6528 (selection.start, selection.end)
6529 };
6530
6531 let text = buffer.text_for_range(start..end).collect::<String>();
6532 let old_length = text.len() as i32;
6533 let text = callback(&text);
6534
6535 new_selections.push(Selection {
6536 start: (start as i32 - selection_adjustment) as usize,
6537 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6538 goal: SelectionGoal::None,
6539 ..selection
6540 });
6541
6542 selection_adjustment += old_length - text.len() as i32;
6543
6544 edits.push((start..end, text));
6545 }
6546
6547 self.transact(cx, |this, cx| {
6548 this.buffer.update(cx, |buffer, cx| {
6549 buffer.edit(edits, None, cx);
6550 });
6551
6552 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6553 s.select(new_selections);
6554 });
6555
6556 this.request_autoscroll(Autoscroll::fit(), cx);
6557 });
6558 }
6559
6560 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6561 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6562 let buffer = &display_map.buffer_snapshot;
6563 let selections = self.selections.all::<Point>(cx);
6564
6565 let mut edits = Vec::new();
6566 let mut selections_iter = selections.iter().peekable();
6567 while let Some(selection) = selections_iter.next() {
6568 // Avoid duplicating the same lines twice.
6569 let mut rows = selection.spanned_rows(false, &display_map);
6570
6571 while let Some(next_selection) = selections_iter.peek() {
6572 let next_rows = next_selection.spanned_rows(false, &display_map);
6573 if next_rows.start < rows.end {
6574 rows.end = next_rows.end;
6575 selections_iter.next().unwrap();
6576 } else {
6577 break;
6578 }
6579 }
6580
6581 // Copy the text from the selected row region and splice it either at the start
6582 // or end of the region.
6583 let start = Point::new(rows.start.0, 0);
6584 let end = Point::new(
6585 rows.end.previous_row().0,
6586 buffer.line_len(rows.end.previous_row()),
6587 );
6588 let text = buffer
6589 .text_for_range(start..end)
6590 .chain(Some("\n"))
6591 .collect::<String>();
6592 let insert_location = if upwards {
6593 Point::new(rows.end.0, 0)
6594 } else {
6595 start
6596 };
6597 edits.push((insert_location..insert_location, text));
6598 }
6599
6600 self.transact(cx, |this, cx| {
6601 this.buffer.update(cx, |buffer, cx| {
6602 buffer.edit(edits, None, cx);
6603 });
6604
6605 this.request_autoscroll(Autoscroll::fit(), cx);
6606 });
6607 }
6608
6609 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6610 self.duplicate_line(true, cx);
6611 }
6612
6613 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6614 self.duplicate_line(false, cx);
6615 }
6616
6617 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6618 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6619 let buffer = self.buffer.read(cx).snapshot(cx);
6620
6621 let mut edits = Vec::new();
6622 let mut unfold_ranges = Vec::new();
6623 let mut refold_ranges = Vec::new();
6624
6625 let selections = self.selections.all::<Point>(cx);
6626 let mut selections = selections.iter().peekable();
6627 let mut contiguous_row_selections = Vec::new();
6628 let mut new_selections = Vec::new();
6629
6630 while let Some(selection) = selections.next() {
6631 // Find all the selections that span a contiguous row range
6632 let (start_row, end_row) = consume_contiguous_rows(
6633 &mut contiguous_row_selections,
6634 selection,
6635 &display_map,
6636 &mut selections,
6637 );
6638
6639 // Move the text spanned by the row range to be before the line preceding the row range
6640 if start_row.0 > 0 {
6641 let range_to_move = Point::new(
6642 start_row.previous_row().0,
6643 buffer.line_len(start_row.previous_row()),
6644 )
6645 ..Point::new(
6646 end_row.previous_row().0,
6647 buffer.line_len(end_row.previous_row()),
6648 );
6649 let insertion_point = display_map
6650 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6651 .0;
6652
6653 // Don't move lines across excerpts
6654 if buffer
6655 .excerpt_boundaries_in_range((
6656 Bound::Excluded(insertion_point),
6657 Bound::Included(range_to_move.end),
6658 ))
6659 .next()
6660 .is_none()
6661 {
6662 let text = buffer
6663 .text_for_range(range_to_move.clone())
6664 .flat_map(|s| s.chars())
6665 .skip(1)
6666 .chain(['\n'])
6667 .collect::<String>();
6668
6669 edits.push((
6670 buffer.anchor_after(range_to_move.start)
6671 ..buffer.anchor_before(range_to_move.end),
6672 String::new(),
6673 ));
6674 let insertion_anchor = buffer.anchor_after(insertion_point);
6675 edits.push((insertion_anchor..insertion_anchor, text));
6676
6677 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6678
6679 // Move selections up
6680 new_selections.extend(contiguous_row_selections.drain(..).map(
6681 |mut selection| {
6682 selection.start.row -= row_delta;
6683 selection.end.row -= row_delta;
6684 selection
6685 },
6686 ));
6687
6688 // Move folds up
6689 unfold_ranges.push(range_to_move.clone());
6690 for fold in display_map.folds_in_range(
6691 buffer.anchor_before(range_to_move.start)
6692 ..buffer.anchor_after(range_to_move.end),
6693 ) {
6694 let mut start = fold.range.start.to_point(&buffer);
6695 let mut end = fold.range.end.to_point(&buffer);
6696 start.row -= row_delta;
6697 end.row -= row_delta;
6698 refold_ranges.push((start..end, fold.placeholder.clone()));
6699 }
6700 }
6701 }
6702
6703 // If we didn't move line(s), preserve the existing selections
6704 new_selections.append(&mut contiguous_row_selections);
6705 }
6706
6707 self.transact(cx, |this, cx| {
6708 this.unfold_ranges(unfold_ranges, true, true, cx);
6709 this.buffer.update(cx, |buffer, cx| {
6710 for (range, text) in edits {
6711 buffer.edit([(range, text)], None, cx);
6712 }
6713 });
6714 this.fold_ranges(refold_ranges, true, cx);
6715 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6716 s.select(new_selections);
6717 })
6718 });
6719 }
6720
6721 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6722 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6723 let buffer = self.buffer.read(cx).snapshot(cx);
6724
6725 let mut edits = Vec::new();
6726 let mut unfold_ranges = Vec::new();
6727 let mut refold_ranges = Vec::new();
6728
6729 let selections = self.selections.all::<Point>(cx);
6730 let mut selections = selections.iter().peekable();
6731 let mut contiguous_row_selections = Vec::new();
6732 let mut new_selections = Vec::new();
6733
6734 while let Some(selection) = selections.next() {
6735 // Find all the selections that span a contiguous row range
6736 let (start_row, end_row) = consume_contiguous_rows(
6737 &mut contiguous_row_selections,
6738 selection,
6739 &display_map,
6740 &mut selections,
6741 );
6742
6743 // Move the text spanned by the row range to be after the last line of the row range
6744 if end_row.0 <= buffer.max_point().row {
6745 let range_to_move =
6746 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6747 let insertion_point = display_map
6748 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6749 .0;
6750
6751 // Don't move lines across excerpt boundaries
6752 if buffer
6753 .excerpt_boundaries_in_range((
6754 Bound::Excluded(range_to_move.start),
6755 Bound::Included(insertion_point),
6756 ))
6757 .next()
6758 .is_none()
6759 {
6760 let mut text = String::from("\n");
6761 text.extend(buffer.text_for_range(range_to_move.clone()));
6762 text.pop(); // Drop trailing newline
6763 edits.push((
6764 buffer.anchor_after(range_to_move.start)
6765 ..buffer.anchor_before(range_to_move.end),
6766 String::new(),
6767 ));
6768 let insertion_anchor = buffer.anchor_after(insertion_point);
6769 edits.push((insertion_anchor..insertion_anchor, text));
6770
6771 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6772
6773 // Move selections down
6774 new_selections.extend(contiguous_row_selections.drain(..).map(
6775 |mut selection| {
6776 selection.start.row += row_delta;
6777 selection.end.row += row_delta;
6778 selection
6779 },
6780 ));
6781
6782 // Move folds down
6783 unfold_ranges.push(range_to_move.clone());
6784 for fold in display_map.folds_in_range(
6785 buffer.anchor_before(range_to_move.start)
6786 ..buffer.anchor_after(range_to_move.end),
6787 ) {
6788 let mut start = fold.range.start.to_point(&buffer);
6789 let mut end = fold.range.end.to_point(&buffer);
6790 start.row += row_delta;
6791 end.row += row_delta;
6792 refold_ranges.push((start..end, fold.placeholder.clone()));
6793 }
6794 }
6795 }
6796
6797 // If we didn't move line(s), preserve the existing selections
6798 new_selections.append(&mut contiguous_row_selections);
6799 }
6800
6801 self.transact(cx, |this, cx| {
6802 this.unfold_ranges(unfold_ranges, true, true, cx);
6803 this.buffer.update(cx, |buffer, cx| {
6804 for (range, text) in edits {
6805 buffer.edit([(range, text)], None, cx);
6806 }
6807 });
6808 this.fold_ranges(refold_ranges, true, cx);
6809 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6810 });
6811 }
6812
6813 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6814 let text_layout_details = &self.text_layout_details(cx);
6815 self.transact(cx, |this, cx| {
6816 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6817 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6818 let line_mode = s.line_mode;
6819 s.move_with(|display_map, selection| {
6820 if !selection.is_empty() || line_mode {
6821 return;
6822 }
6823
6824 let mut head = selection.head();
6825 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6826 if head.column() == display_map.line_len(head.row()) {
6827 transpose_offset = display_map
6828 .buffer_snapshot
6829 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6830 }
6831
6832 if transpose_offset == 0 {
6833 return;
6834 }
6835
6836 *head.column_mut() += 1;
6837 head = display_map.clip_point(head, Bias::Right);
6838 let goal = SelectionGoal::HorizontalPosition(
6839 display_map
6840 .x_for_display_point(head, text_layout_details)
6841 .into(),
6842 );
6843 selection.collapse_to(head, goal);
6844
6845 let transpose_start = display_map
6846 .buffer_snapshot
6847 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6848 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6849 let transpose_end = display_map
6850 .buffer_snapshot
6851 .clip_offset(transpose_offset + 1, Bias::Right);
6852 if let Some(ch) =
6853 display_map.buffer_snapshot.chars_at(transpose_start).next()
6854 {
6855 edits.push((transpose_start..transpose_offset, String::new()));
6856 edits.push((transpose_end..transpose_end, ch.to_string()));
6857 }
6858 }
6859 });
6860 edits
6861 });
6862 this.buffer
6863 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6864 let selections = this.selections.all::<usize>(cx);
6865 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6866 s.select(selections);
6867 });
6868 });
6869 }
6870
6871 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6872 self.rewrap_impl(true, cx)
6873 }
6874
6875 pub fn rewrap_impl(&mut self, only_text: bool, cx: &mut ViewContext<Self>) {
6876 let buffer = self.buffer.read(cx).snapshot(cx);
6877 let selections = self.selections.all::<Point>(cx);
6878 let mut selections = selections.iter().peekable();
6879
6880 let mut edits = Vec::new();
6881 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6882
6883 while let Some(selection) = selections.next() {
6884 let mut start_row = selection.start.row;
6885 let mut end_row = selection.end.row;
6886
6887 // Skip selections that overlap with a range that has already been rewrapped.
6888 let selection_range = start_row..end_row;
6889 if rewrapped_row_ranges
6890 .iter()
6891 .any(|range| range.overlaps(&selection_range))
6892 {
6893 continue;
6894 }
6895
6896 let mut should_rewrap = !only_text;
6897
6898 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6899 match language_scope.language_name().0.as_ref() {
6900 "Markdown" | "Plain Text" => {
6901 should_rewrap = true;
6902 }
6903 _ => {}
6904 }
6905 }
6906
6907 // Since not all lines in the selection may be at the same indent
6908 // level, choose the indent size that is the most common between all
6909 // of the lines.
6910 //
6911 // If there is a tie, we use the deepest indent.
6912 let (indent_size, indent_end) = {
6913 let mut indent_size_occurrences = HashMap::default();
6914 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6915
6916 for row in start_row..=end_row {
6917 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6918 rows_by_indent_size.entry(indent).or_default().push(row);
6919 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6920 }
6921
6922 let indent_size = indent_size_occurrences
6923 .into_iter()
6924 .max_by_key(|(indent, count)| (*count, indent.len))
6925 .map(|(indent, _)| indent)
6926 .unwrap_or_default();
6927 let row = rows_by_indent_size[&indent_size][0];
6928 let indent_end = Point::new(row, indent_size.len);
6929
6930 (indent_size, indent_end)
6931 };
6932
6933 let mut line_prefix = indent_size.chars().collect::<String>();
6934
6935 if let Some(comment_prefix) =
6936 buffer
6937 .language_scope_at(selection.head())
6938 .and_then(|language| {
6939 language
6940 .line_comment_prefixes()
6941 .iter()
6942 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6943 .cloned()
6944 })
6945 {
6946 line_prefix.push_str(&comment_prefix);
6947 should_rewrap = true;
6948 }
6949
6950 if selection.is_empty() {
6951 'expand_upwards: while start_row > 0 {
6952 let prev_row = start_row - 1;
6953 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6954 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6955 {
6956 start_row = prev_row;
6957 } else {
6958 break 'expand_upwards;
6959 }
6960 }
6961
6962 'expand_downwards: while end_row < buffer.max_point().row {
6963 let next_row = end_row + 1;
6964 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6965 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6966 {
6967 end_row = next_row;
6968 } else {
6969 break 'expand_downwards;
6970 }
6971 }
6972 }
6973
6974 if !should_rewrap {
6975 continue;
6976 }
6977
6978 let start = Point::new(start_row, 0);
6979 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6980 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6981 let Some(lines_without_prefixes) = selection_text
6982 .lines()
6983 .map(|line| {
6984 line.strip_prefix(&line_prefix)
6985 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6986 .ok_or_else(|| {
6987 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6988 })
6989 })
6990 .collect::<Result<Vec<_>, _>>()
6991 .log_err()
6992 else {
6993 continue;
6994 };
6995
6996 let unwrapped_text = lines_without_prefixes.join(" ");
6997 let wrap_column = buffer
6998 .settings_at(Point::new(start_row, 0), cx)
6999 .preferred_line_length as usize;
7000 let mut wrapped_text = String::new();
7001 let mut current_line = line_prefix.clone();
7002 for word in unwrapped_text.split_whitespace() {
7003 if current_line.len() + word.len() >= wrap_column {
7004 wrapped_text.push_str(¤t_line);
7005 wrapped_text.push('\n');
7006 current_line.truncate(line_prefix.len());
7007 }
7008
7009 if current_line.len() > line_prefix.len() {
7010 current_line.push(' ');
7011 }
7012
7013 current_line.push_str(word);
7014 }
7015
7016 if !current_line.is_empty() {
7017 wrapped_text.push_str(¤t_line);
7018 }
7019
7020 let diff = TextDiff::from_lines(&selection_text, &wrapped_text);
7021 let mut offset = start.to_offset(&buffer);
7022 let mut moved_since_edit = true;
7023
7024 for change in diff.iter_all_changes() {
7025 let value = change.value();
7026 match change.tag() {
7027 ChangeTag::Equal => {
7028 offset += value.len();
7029 moved_since_edit = true;
7030 }
7031 ChangeTag::Delete => {
7032 let start = buffer.anchor_after(offset);
7033 let end = buffer.anchor_before(offset + value.len());
7034
7035 if moved_since_edit {
7036 edits.push((start..end, String::new()));
7037 } else {
7038 edits.last_mut().unwrap().0.end = end;
7039 }
7040
7041 offset += value.len();
7042 moved_since_edit = false;
7043 }
7044 ChangeTag::Insert => {
7045 if moved_since_edit {
7046 let anchor = buffer.anchor_after(offset);
7047 edits.push((anchor..anchor, value.to_string()));
7048 } else {
7049 edits.last_mut().unwrap().1.push_str(value);
7050 }
7051
7052 moved_since_edit = false;
7053 }
7054 }
7055 }
7056
7057 rewrapped_row_ranges.push(start_row..=end_row);
7058 }
7059
7060 self.buffer
7061 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7062 }
7063
7064 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7065 let mut text = String::new();
7066 let buffer = self.buffer.read(cx).snapshot(cx);
7067 let mut selections = self.selections.all::<Point>(cx);
7068 let mut clipboard_selections = Vec::with_capacity(selections.len());
7069 {
7070 let max_point = buffer.max_point();
7071 let mut is_first = true;
7072 for selection in &mut selections {
7073 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7074 if is_entire_line {
7075 selection.start = Point::new(selection.start.row, 0);
7076 if !selection.is_empty() && selection.end.column == 0 {
7077 selection.end = cmp::min(max_point, selection.end);
7078 } else {
7079 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7080 }
7081 selection.goal = SelectionGoal::None;
7082 }
7083 if is_first {
7084 is_first = false;
7085 } else {
7086 text += "\n";
7087 }
7088 let mut len = 0;
7089 for chunk in buffer.text_for_range(selection.start..selection.end) {
7090 text.push_str(chunk);
7091 len += chunk.len();
7092 }
7093 clipboard_selections.push(ClipboardSelection {
7094 len,
7095 is_entire_line,
7096 first_line_indent: buffer
7097 .indent_size_for_line(MultiBufferRow(selection.start.row))
7098 .len,
7099 });
7100 }
7101 }
7102
7103 self.transact(cx, |this, cx| {
7104 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7105 s.select(selections);
7106 });
7107 this.insert("", cx);
7108 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7109 text,
7110 clipboard_selections,
7111 ));
7112 });
7113 }
7114
7115 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7116 let selections = self.selections.all::<Point>(cx);
7117 let buffer = self.buffer.read(cx).read(cx);
7118 let mut text = String::new();
7119
7120 let mut clipboard_selections = Vec::with_capacity(selections.len());
7121 {
7122 let max_point = buffer.max_point();
7123 let mut is_first = true;
7124 for selection in selections.iter() {
7125 let mut start = selection.start;
7126 let mut end = selection.end;
7127 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7128 if is_entire_line {
7129 start = Point::new(start.row, 0);
7130 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7131 }
7132 if is_first {
7133 is_first = false;
7134 } else {
7135 text += "\n";
7136 }
7137 let mut len = 0;
7138 for chunk in buffer.text_for_range(start..end) {
7139 text.push_str(chunk);
7140 len += chunk.len();
7141 }
7142 clipboard_selections.push(ClipboardSelection {
7143 len,
7144 is_entire_line,
7145 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7146 });
7147 }
7148 }
7149
7150 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7151 text,
7152 clipboard_selections,
7153 ));
7154 }
7155
7156 pub fn do_paste(
7157 &mut self,
7158 text: &String,
7159 clipboard_selections: Option<Vec<ClipboardSelection>>,
7160 handle_entire_lines: bool,
7161 cx: &mut ViewContext<Self>,
7162 ) {
7163 if self.read_only(cx) {
7164 return;
7165 }
7166
7167 let clipboard_text = Cow::Borrowed(text);
7168
7169 self.transact(cx, |this, cx| {
7170 if let Some(mut clipboard_selections) = clipboard_selections {
7171 let old_selections = this.selections.all::<usize>(cx);
7172 let all_selections_were_entire_line =
7173 clipboard_selections.iter().all(|s| s.is_entire_line);
7174 let first_selection_indent_column =
7175 clipboard_selections.first().map(|s| s.first_line_indent);
7176 if clipboard_selections.len() != old_selections.len() {
7177 clipboard_selections.drain(..);
7178 }
7179
7180 this.buffer.update(cx, |buffer, cx| {
7181 let snapshot = buffer.read(cx);
7182 let mut start_offset = 0;
7183 let mut edits = Vec::new();
7184 let mut original_indent_columns = Vec::new();
7185 for (ix, selection) in old_selections.iter().enumerate() {
7186 let to_insert;
7187 let entire_line;
7188 let original_indent_column;
7189 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7190 let end_offset = start_offset + clipboard_selection.len;
7191 to_insert = &clipboard_text[start_offset..end_offset];
7192 entire_line = clipboard_selection.is_entire_line;
7193 start_offset = end_offset + 1;
7194 original_indent_column = Some(clipboard_selection.first_line_indent);
7195 } else {
7196 to_insert = clipboard_text.as_str();
7197 entire_line = all_selections_were_entire_line;
7198 original_indent_column = first_selection_indent_column
7199 }
7200
7201 // If the corresponding selection was empty when this slice of the
7202 // clipboard text was written, then the entire line containing the
7203 // selection was copied. If this selection is also currently empty,
7204 // then paste the line before the current line of the buffer.
7205 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7206 let column = selection.start.to_point(&snapshot).column as usize;
7207 let line_start = selection.start - column;
7208 line_start..line_start
7209 } else {
7210 selection.range()
7211 };
7212
7213 edits.push((range, to_insert));
7214 original_indent_columns.extend(original_indent_column);
7215 }
7216 drop(snapshot);
7217
7218 buffer.edit(
7219 edits,
7220 Some(AutoindentMode::Block {
7221 original_indent_columns,
7222 }),
7223 cx,
7224 );
7225 });
7226
7227 let selections = this.selections.all::<usize>(cx);
7228 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7229 } else {
7230 this.insert(&clipboard_text, cx);
7231 }
7232 });
7233 }
7234
7235 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7236 if let Some(item) = cx.read_from_clipboard() {
7237 let entries = item.entries();
7238
7239 match entries.first() {
7240 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7241 // of all the pasted entries.
7242 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7243 .do_paste(
7244 clipboard_string.text(),
7245 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7246 true,
7247 cx,
7248 ),
7249 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7250 }
7251 }
7252 }
7253
7254 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7255 if self.read_only(cx) {
7256 return;
7257 }
7258
7259 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7260 if let Some((selections, _)) =
7261 self.selection_history.transaction(transaction_id).cloned()
7262 {
7263 self.change_selections(None, cx, |s| {
7264 s.select_anchors(selections.to_vec());
7265 });
7266 }
7267 self.request_autoscroll(Autoscroll::fit(), cx);
7268 self.unmark_text(cx);
7269 self.refresh_inline_completion(true, false, cx);
7270 cx.emit(EditorEvent::Edited { transaction_id });
7271 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7272 }
7273 }
7274
7275 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7276 if self.read_only(cx) {
7277 return;
7278 }
7279
7280 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7281 if let Some((_, Some(selections))) =
7282 self.selection_history.transaction(transaction_id).cloned()
7283 {
7284 self.change_selections(None, cx, |s| {
7285 s.select_anchors(selections.to_vec());
7286 });
7287 }
7288 self.request_autoscroll(Autoscroll::fit(), cx);
7289 self.unmark_text(cx);
7290 self.refresh_inline_completion(true, false, cx);
7291 cx.emit(EditorEvent::Edited { transaction_id });
7292 }
7293 }
7294
7295 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7296 self.buffer
7297 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7298 }
7299
7300 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7301 self.buffer
7302 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7303 }
7304
7305 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7306 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7307 let line_mode = s.line_mode;
7308 s.move_with(|map, selection| {
7309 let cursor = if selection.is_empty() && !line_mode {
7310 movement::left(map, selection.start)
7311 } else {
7312 selection.start
7313 };
7314 selection.collapse_to(cursor, SelectionGoal::None);
7315 });
7316 })
7317 }
7318
7319 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7320 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7321 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7322 })
7323 }
7324
7325 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7326 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7327 let line_mode = s.line_mode;
7328 s.move_with(|map, selection| {
7329 let cursor = if selection.is_empty() && !line_mode {
7330 movement::right(map, selection.end)
7331 } else {
7332 selection.end
7333 };
7334 selection.collapse_to(cursor, SelectionGoal::None)
7335 });
7336 })
7337 }
7338
7339 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7340 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7341 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7342 })
7343 }
7344
7345 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7346 if self.take_rename(true, cx).is_some() {
7347 return;
7348 }
7349
7350 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7351 cx.propagate();
7352 return;
7353 }
7354
7355 let text_layout_details = &self.text_layout_details(cx);
7356 let selection_count = self.selections.count();
7357 let first_selection = self.selections.first_anchor();
7358
7359 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7360 let line_mode = s.line_mode;
7361 s.move_with(|map, selection| {
7362 if !selection.is_empty() && !line_mode {
7363 selection.goal = SelectionGoal::None;
7364 }
7365 let (cursor, goal) = movement::up(
7366 map,
7367 selection.start,
7368 selection.goal,
7369 false,
7370 text_layout_details,
7371 );
7372 selection.collapse_to(cursor, goal);
7373 });
7374 });
7375
7376 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7377 {
7378 cx.propagate();
7379 }
7380 }
7381
7382 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7383 if self.take_rename(true, cx).is_some() {
7384 return;
7385 }
7386
7387 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7388 cx.propagate();
7389 return;
7390 }
7391
7392 let text_layout_details = &self.text_layout_details(cx);
7393
7394 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7395 let line_mode = s.line_mode;
7396 s.move_with(|map, selection| {
7397 if !selection.is_empty() && !line_mode {
7398 selection.goal = SelectionGoal::None;
7399 }
7400 let (cursor, goal) = movement::up_by_rows(
7401 map,
7402 selection.start,
7403 action.lines,
7404 selection.goal,
7405 false,
7406 text_layout_details,
7407 );
7408 selection.collapse_to(cursor, goal);
7409 });
7410 })
7411 }
7412
7413 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7414 if self.take_rename(true, cx).is_some() {
7415 return;
7416 }
7417
7418 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7419 cx.propagate();
7420 return;
7421 }
7422
7423 let text_layout_details = &self.text_layout_details(cx);
7424
7425 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7426 let line_mode = s.line_mode;
7427 s.move_with(|map, selection| {
7428 if !selection.is_empty() && !line_mode {
7429 selection.goal = SelectionGoal::None;
7430 }
7431 let (cursor, goal) = movement::down_by_rows(
7432 map,
7433 selection.start,
7434 action.lines,
7435 selection.goal,
7436 false,
7437 text_layout_details,
7438 );
7439 selection.collapse_to(cursor, goal);
7440 });
7441 })
7442 }
7443
7444 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7445 let text_layout_details = &self.text_layout_details(cx);
7446 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7447 s.move_heads_with(|map, head, goal| {
7448 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7449 })
7450 })
7451 }
7452
7453 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7454 let text_layout_details = &self.text_layout_details(cx);
7455 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7456 s.move_heads_with(|map, head, goal| {
7457 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7458 })
7459 })
7460 }
7461
7462 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7463 let Some(row_count) = self.visible_row_count() else {
7464 return;
7465 };
7466
7467 let text_layout_details = &self.text_layout_details(cx);
7468
7469 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7470 s.move_heads_with(|map, head, goal| {
7471 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7472 })
7473 })
7474 }
7475
7476 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7477 if self.take_rename(true, cx).is_some() {
7478 return;
7479 }
7480
7481 if self
7482 .context_menu
7483 .write()
7484 .as_mut()
7485 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7486 .unwrap_or(false)
7487 {
7488 return;
7489 }
7490
7491 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7492 cx.propagate();
7493 return;
7494 }
7495
7496 let Some(row_count) = self.visible_row_count() else {
7497 return;
7498 };
7499
7500 let autoscroll = if action.center_cursor {
7501 Autoscroll::center()
7502 } else {
7503 Autoscroll::fit()
7504 };
7505
7506 let text_layout_details = &self.text_layout_details(cx);
7507
7508 self.change_selections(Some(autoscroll), cx, |s| {
7509 let line_mode = s.line_mode;
7510 s.move_with(|map, selection| {
7511 if !selection.is_empty() && !line_mode {
7512 selection.goal = SelectionGoal::None;
7513 }
7514 let (cursor, goal) = movement::up_by_rows(
7515 map,
7516 selection.end,
7517 row_count,
7518 selection.goal,
7519 false,
7520 text_layout_details,
7521 );
7522 selection.collapse_to(cursor, goal);
7523 });
7524 });
7525 }
7526
7527 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7528 let text_layout_details = &self.text_layout_details(cx);
7529 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7530 s.move_heads_with(|map, head, goal| {
7531 movement::up(map, head, goal, false, text_layout_details)
7532 })
7533 })
7534 }
7535
7536 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7537 self.take_rename(true, cx);
7538
7539 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7540 cx.propagate();
7541 return;
7542 }
7543
7544 let text_layout_details = &self.text_layout_details(cx);
7545 let selection_count = self.selections.count();
7546 let first_selection = self.selections.first_anchor();
7547
7548 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7549 let line_mode = s.line_mode;
7550 s.move_with(|map, selection| {
7551 if !selection.is_empty() && !line_mode {
7552 selection.goal = SelectionGoal::None;
7553 }
7554 let (cursor, goal) = movement::down(
7555 map,
7556 selection.end,
7557 selection.goal,
7558 false,
7559 text_layout_details,
7560 );
7561 selection.collapse_to(cursor, goal);
7562 });
7563 });
7564
7565 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7566 {
7567 cx.propagate();
7568 }
7569 }
7570
7571 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7572 let Some(row_count) = self.visible_row_count() else {
7573 return;
7574 };
7575
7576 let text_layout_details = &self.text_layout_details(cx);
7577
7578 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7579 s.move_heads_with(|map, head, goal| {
7580 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7581 })
7582 })
7583 }
7584
7585 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7586 if self.take_rename(true, cx).is_some() {
7587 return;
7588 }
7589
7590 if self
7591 .context_menu
7592 .write()
7593 .as_mut()
7594 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7595 .unwrap_or(false)
7596 {
7597 return;
7598 }
7599
7600 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7601 cx.propagate();
7602 return;
7603 }
7604
7605 let Some(row_count) = self.visible_row_count() else {
7606 return;
7607 };
7608
7609 let autoscroll = if action.center_cursor {
7610 Autoscroll::center()
7611 } else {
7612 Autoscroll::fit()
7613 };
7614
7615 let text_layout_details = &self.text_layout_details(cx);
7616 self.change_selections(Some(autoscroll), cx, |s| {
7617 let line_mode = s.line_mode;
7618 s.move_with(|map, selection| {
7619 if !selection.is_empty() && !line_mode {
7620 selection.goal = SelectionGoal::None;
7621 }
7622 let (cursor, goal) = movement::down_by_rows(
7623 map,
7624 selection.end,
7625 row_count,
7626 selection.goal,
7627 false,
7628 text_layout_details,
7629 );
7630 selection.collapse_to(cursor, goal);
7631 });
7632 });
7633 }
7634
7635 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7636 let text_layout_details = &self.text_layout_details(cx);
7637 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7638 s.move_heads_with(|map, head, goal| {
7639 movement::down(map, head, goal, false, text_layout_details)
7640 })
7641 });
7642 }
7643
7644 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7645 if let Some(context_menu) = self.context_menu.write().as_mut() {
7646 context_menu.select_first(self.completion_provider.as_deref(), cx);
7647 }
7648 }
7649
7650 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7651 if let Some(context_menu) = self.context_menu.write().as_mut() {
7652 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7653 }
7654 }
7655
7656 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7657 if let Some(context_menu) = self.context_menu.write().as_mut() {
7658 context_menu.select_next(self.completion_provider.as_deref(), cx);
7659 }
7660 }
7661
7662 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7663 if let Some(context_menu) = self.context_menu.write().as_mut() {
7664 context_menu.select_last(self.completion_provider.as_deref(), cx);
7665 }
7666 }
7667
7668 pub fn move_to_previous_word_start(
7669 &mut self,
7670 _: &MoveToPreviousWordStart,
7671 cx: &mut ViewContext<Self>,
7672 ) {
7673 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7674 s.move_cursors_with(|map, head, _| {
7675 (
7676 movement::previous_word_start(map, head),
7677 SelectionGoal::None,
7678 )
7679 });
7680 })
7681 }
7682
7683 pub fn move_to_previous_subword_start(
7684 &mut self,
7685 _: &MoveToPreviousSubwordStart,
7686 cx: &mut ViewContext<Self>,
7687 ) {
7688 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7689 s.move_cursors_with(|map, head, _| {
7690 (
7691 movement::previous_subword_start(map, head),
7692 SelectionGoal::None,
7693 )
7694 });
7695 })
7696 }
7697
7698 pub fn select_to_previous_word_start(
7699 &mut self,
7700 _: &SelectToPreviousWordStart,
7701 cx: &mut ViewContext<Self>,
7702 ) {
7703 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7704 s.move_heads_with(|map, head, _| {
7705 (
7706 movement::previous_word_start(map, head),
7707 SelectionGoal::None,
7708 )
7709 });
7710 })
7711 }
7712
7713 pub fn select_to_previous_subword_start(
7714 &mut self,
7715 _: &SelectToPreviousSubwordStart,
7716 cx: &mut ViewContext<Self>,
7717 ) {
7718 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7719 s.move_heads_with(|map, head, _| {
7720 (
7721 movement::previous_subword_start(map, head),
7722 SelectionGoal::None,
7723 )
7724 });
7725 })
7726 }
7727
7728 pub fn delete_to_previous_word_start(
7729 &mut self,
7730 action: &DeleteToPreviousWordStart,
7731 cx: &mut ViewContext<Self>,
7732 ) {
7733 self.transact(cx, |this, cx| {
7734 this.select_autoclose_pair(cx);
7735 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7736 let line_mode = s.line_mode;
7737 s.move_with(|map, selection| {
7738 if selection.is_empty() && !line_mode {
7739 let cursor = if action.ignore_newlines {
7740 movement::previous_word_start(map, selection.head())
7741 } else {
7742 movement::previous_word_start_or_newline(map, selection.head())
7743 };
7744 selection.set_head(cursor, SelectionGoal::None);
7745 }
7746 });
7747 });
7748 this.insert("", cx);
7749 });
7750 }
7751
7752 pub fn delete_to_previous_subword_start(
7753 &mut self,
7754 _: &DeleteToPreviousSubwordStart,
7755 cx: &mut ViewContext<Self>,
7756 ) {
7757 self.transact(cx, |this, cx| {
7758 this.select_autoclose_pair(cx);
7759 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7760 let line_mode = s.line_mode;
7761 s.move_with(|map, selection| {
7762 if selection.is_empty() && !line_mode {
7763 let cursor = movement::previous_subword_start(map, selection.head());
7764 selection.set_head(cursor, SelectionGoal::None);
7765 }
7766 });
7767 });
7768 this.insert("", cx);
7769 });
7770 }
7771
7772 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7773 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7774 s.move_cursors_with(|map, head, _| {
7775 (movement::next_word_end(map, head), SelectionGoal::None)
7776 });
7777 })
7778 }
7779
7780 pub fn move_to_next_subword_end(
7781 &mut self,
7782 _: &MoveToNextSubwordEnd,
7783 cx: &mut ViewContext<Self>,
7784 ) {
7785 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7786 s.move_cursors_with(|map, head, _| {
7787 (movement::next_subword_end(map, head), SelectionGoal::None)
7788 });
7789 })
7790 }
7791
7792 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7793 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7794 s.move_heads_with(|map, head, _| {
7795 (movement::next_word_end(map, head), SelectionGoal::None)
7796 });
7797 })
7798 }
7799
7800 pub fn select_to_next_subword_end(
7801 &mut self,
7802 _: &SelectToNextSubwordEnd,
7803 cx: &mut ViewContext<Self>,
7804 ) {
7805 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7806 s.move_heads_with(|map, head, _| {
7807 (movement::next_subword_end(map, head), SelectionGoal::None)
7808 });
7809 })
7810 }
7811
7812 pub fn delete_to_next_word_end(
7813 &mut self,
7814 action: &DeleteToNextWordEnd,
7815 cx: &mut ViewContext<Self>,
7816 ) {
7817 self.transact(cx, |this, cx| {
7818 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7819 let line_mode = s.line_mode;
7820 s.move_with(|map, selection| {
7821 if selection.is_empty() && !line_mode {
7822 let cursor = if action.ignore_newlines {
7823 movement::next_word_end(map, selection.head())
7824 } else {
7825 movement::next_word_end_or_newline(map, selection.head())
7826 };
7827 selection.set_head(cursor, SelectionGoal::None);
7828 }
7829 });
7830 });
7831 this.insert("", cx);
7832 });
7833 }
7834
7835 pub fn delete_to_next_subword_end(
7836 &mut self,
7837 _: &DeleteToNextSubwordEnd,
7838 cx: &mut ViewContext<Self>,
7839 ) {
7840 self.transact(cx, |this, cx| {
7841 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7842 s.move_with(|map, selection| {
7843 if selection.is_empty() {
7844 let cursor = movement::next_subword_end(map, selection.head());
7845 selection.set_head(cursor, SelectionGoal::None);
7846 }
7847 });
7848 });
7849 this.insert("", cx);
7850 });
7851 }
7852
7853 pub fn move_to_beginning_of_line(
7854 &mut self,
7855 action: &MoveToBeginningOfLine,
7856 cx: &mut ViewContext<Self>,
7857 ) {
7858 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7859 s.move_cursors_with(|map, head, _| {
7860 (
7861 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7862 SelectionGoal::None,
7863 )
7864 });
7865 })
7866 }
7867
7868 pub fn select_to_beginning_of_line(
7869 &mut self,
7870 action: &SelectToBeginningOfLine,
7871 cx: &mut ViewContext<Self>,
7872 ) {
7873 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7874 s.move_heads_with(|map, head, _| {
7875 (
7876 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7877 SelectionGoal::None,
7878 )
7879 });
7880 });
7881 }
7882
7883 pub fn delete_to_beginning_of_line(
7884 &mut self,
7885 _: &DeleteToBeginningOfLine,
7886 cx: &mut ViewContext<Self>,
7887 ) {
7888 self.transact(cx, |this, cx| {
7889 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7890 s.move_with(|_, selection| {
7891 selection.reversed = true;
7892 });
7893 });
7894
7895 this.select_to_beginning_of_line(
7896 &SelectToBeginningOfLine {
7897 stop_at_soft_wraps: false,
7898 },
7899 cx,
7900 );
7901 this.backspace(&Backspace, cx);
7902 });
7903 }
7904
7905 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7906 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7907 s.move_cursors_with(|map, head, _| {
7908 (
7909 movement::line_end(map, head, action.stop_at_soft_wraps),
7910 SelectionGoal::None,
7911 )
7912 });
7913 })
7914 }
7915
7916 pub fn select_to_end_of_line(
7917 &mut self,
7918 action: &SelectToEndOfLine,
7919 cx: &mut ViewContext<Self>,
7920 ) {
7921 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7922 s.move_heads_with(|map, head, _| {
7923 (
7924 movement::line_end(map, head, action.stop_at_soft_wraps),
7925 SelectionGoal::None,
7926 )
7927 });
7928 })
7929 }
7930
7931 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7932 self.transact(cx, |this, cx| {
7933 this.select_to_end_of_line(
7934 &SelectToEndOfLine {
7935 stop_at_soft_wraps: false,
7936 },
7937 cx,
7938 );
7939 this.delete(&Delete, cx);
7940 });
7941 }
7942
7943 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7944 self.transact(cx, |this, cx| {
7945 this.select_to_end_of_line(
7946 &SelectToEndOfLine {
7947 stop_at_soft_wraps: false,
7948 },
7949 cx,
7950 );
7951 this.cut(&Cut, cx);
7952 });
7953 }
7954
7955 pub fn move_to_start_of_paragraph(
7956 &mut self,
7957 _: &MoveToStartOfParagraph,
7958 cx: &mut ViewContext<Self>,
7959 ) {
7960 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7961 cx.propagate();
7962 return;
7963 }
7964
7965 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7966 s.move_with(|map, selection| {
7967 selection.collapse_to(
7968 movement::start_of_paragraph(map, selection.head(), 1),
7969 SelectionGoal::None,
7970 )
7971 });
7972 })
7973 }
7974
7975 pub fn move_to_end_of_paragraph(
7976 &mut self,
7977 _: &MoveToEndOfParagraph,
7978 cx: &mut ViewContext<Self>,
7979 ) {
7980 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7981 cx.propagate();
7982 return;
7983 }
7984
7985 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7986 s.move_with(|map, selection| {
7987 selection.collapse_to(
7988 movement::end_of_paragraph(map, selection.head(), 1),
7989 SelectionGoal::None,
7990 )
7991 });
7992 })
7993 }
7994
7995 pub fn select_to_start_of_paragraph(
7996 &mut self,
7997 _: &SelectToStartOfParagraph,
7998 cx: &mut ViewContext<Self>,
7999 ) {
8000 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8001 cx.propagate();
8002 return;
8003 }
8004
8005 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8006 s.move_heads_with(|map, head, _| {
8007 (
8008 movement::start_of_paragraph(map, head, 1),
8009 SelectionGoal::None,
8010 )
8011 });
8012 })
8013 }
8014
8015 pub fn select_to_end_of_paragraph(
8016 &mut self,
8017 _: &SelectToEndOfParagraph,
8018 cx: &mut ViewContext<Self>,
8019 ) {
8020 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8021 cx.propagate();
8022 return;
8023 }
8024
8025 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8026 s.move_heads_with(|map, head, _| {
8027 (
8028 movement::end_of_paragraph(map, head, 1),
8029 SelectionGoal::None,
8030 )
8031 });
8032 })
8033 }
8034
8035 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
8036 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8037 cx.propagate();
8038 return;
8039 }
8040
8041 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8042 s.select_ranges(vec![0..0]);
8043 });
8044 }
8045
8046 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
8047 let mut selection = self.selections.last::<Point>(cx);
8048 selection.set_head(Point::zero(), SelectionGoal::None);
8049
8050 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8051 s.select(vec![selection]);
8052 });
8053 }
8054
8055 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
8056 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8057 cx.propagate();
8058 return;
8059 }
8060
8061 let cursor = self.buffer.read(cx).read(cx).len();
8062 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8063 s.select_ranges(vec![cursor..cursor])
8064 });
8065 }
8066
8067 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8068 self.nav_history = nav_history;
8069 }
8070
8071 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8072 self.nav_history.as_ref()
8073 }
8074
8075 fn push_to_nav_history(
8076 &mut self,
8077 cursor_anchor: Anchor,
8078 new_position: Option<Point>,
8079 cx: &mut ViewContext<Self>,
8080 ) {
8081 if let Some(nav_history) = self.nav_history.as_mut() {
8082 let buffer = self.buffer.read(cx).read(cx);
8083 let cursor_position = cursor_anchor.to_point(&buffer);
8084 let scroll_state = self.scroll_manager.anchor();
8085 let scroll_top_row = scroll_state.top_row(&buffer);
8086 drop(buffer);
8087
8088 if let Some(new_position) = new_position {
8089 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8090 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8091 return;
8092 }
8093 }
8094
8095 nav_history.push(
8096 Some(NavigationData {
8097 cursor_anchor,
8098 cursor_position,
8099 scroll_anchor: scroll_state,
8100 scroll_top_row,
8101 }),
8102 cx,
8103 );
8104 }
8105 }
8106
8107 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8108 let buffer = self.buffer.read(cx).snapshot(cx);
8109 let mut selection = self.selections.first::<usize>(cx);
8110 selection.set_head(buffer.len(), SelectionGoal::None);
8111 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8112 s.select(vec![selection]);
8113 });
8114 }
8115
8116 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8117 let end = self.buffer.read(cx).read(cx).len();
8118 self.change_selections(None, cx, |s| {
8119 s.select_ranges(vec![0..end]);
8120 });
8121 }
8122
8123 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8124 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8125 let mut selections = self.selections.all::<Point>(cx);
8126 let max_point = display_map.buffer_snapshot.max_point();
8127 for selection in &mut selections {
8128 let rows = selection.spanned_rows(true, &display_map);
8129 selection.start = Point::new(rows.start.0, 0);
8130 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8131 selection.reversed = false;
8132 }
8133 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8134 s.select(selections);
8135 });
8136 }
8137
8138 pub fn split_selection_into_lines(
8139 &mut self,
8140 _: &SplitSelectionIntoLines,
8141 cx: &mut ViewContext<Self>,
8142 ) {
8143 let mut to_unfold = Vec::new();
8144 let mut new_selection_ranges = Vec::new();
8145 {
8146 let selections = self.selections.all::<Point>(cx);
8147 let buffer = self.buffer.read(cx).read(cx);
8148 for selection in selections {
8149 for row in selection.start.row..selection.end.row {
8150 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8151 new_selection_ranges.push(cursor..cursor);
8152 }
8153 new_selection_ranges.push(selection.end..selection.end);
8154 to_unfold.push(selection.start..selection.end);
8155 }
8156 }
8157 self.unfold_ranges(to_unfold, true, true, cx);
8158 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8159 s.select_ranges(new_selection_ranges);
8160 });
8161 }
8162
8163 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8164 self.add_selection(true, cx);
8165 }
8166
8167 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8168 self.add_selection(false, cx);
8169 }
8170
8171 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8172 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8173 let mut selections = self.selections.all::<Point>(cx);
8174 let text_layout_details = self.text_layout_details(cx);
8175 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8176 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8177 let range = oldest_selection.display_range(&display_map).sorted();
8178
8179 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8180 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8181 let positions = start_x.min(end_x)..start_x.max(end_x);
8182
8183 selections.clear();
8184 let mut stack = Vec::new();
8185 for row in range.start.row().0..=range.end.row().0 {
8186 if let Some(selection) = self.selections.build_columnar_selection(
8187 &display_map,
8188 DisplayRow(row),
8189 &positions,
8190 oldest_selection.reversed,
8191 &text_layout_details,
8192 ) {
8193 stack.push(selection.id);
8194 selections.push(selection);
8195 }
8196 }
8197
8198 if above {
8199 stack.reverse();
8200 }
8201
8202 AddSelectionsState { above, stack }
8203 });
8204
8205 let last_added_selection = *state.stack.last().unwrap();
8206 let mut new_selections = Vec::new();
8207 if above == state.above {
8208 let end_row = if above {
8209 DisplayRow(0)
8210 } else {
8211 display_map.max_point().row()
8212 };
8213
8214 'outer: for selection in selections {
8215 if selection.id == last_added_selection {
8216 let range = selection.display_range(&display_map).sorted();
8217 debug_assert_eq!(range.start.row(), range.end.row());
8218 let mut row = range.start.row();
8219 let positions =
8220 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8221 px(start)..px(end)
8222 } else {
8223 let start_x =
8224 display_map.x_for_display_point(range.start, &text_layout_details);
8225 let end_x =
8226 display_map.x_for_display_point(range.end, &text_layout_details);
8227 start_x.min(end_x)..start_x.max(end_x)
8228 };
8229
8230 while row != end_row {
8231 if above {
8232 row.0 -= 1;
8233 } else {
8234 row.0 += 1;
8235 }
8236
8237 if let Some(new_selection) = self.selections.build_columnar_selection(
8238 &display_map,
8239 row,
8240 &positions,
8241 selection.reversed,
8242 &text_layout_details,
8243 ) {
8244 state.stack.push(new_selection.id);
8245 if above {
8246 new_selections.push(new_selection);
8247 new_selections.push(selection);
8248 } else {
8249 new_selections.push(selection);
8250 new_selections.push(new_selection);
8251 }
8252
8253 continue 'outer;
8254 }
8255 }
8256 }
8257
8258 new_selections.push(selection);
8259 }
8260 } else {
8261 new_selections = selections;
8262 new_selections.retain(|s| s.id != last_added_selection);
8263 state.stack.pop();
8264 }
8265
8266 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8267 s.select(new_selections);
8268 });
8269 if state.stack.len() > 1 {
8270 self.add_selections_state = Some(state);
8271 }
8272 }
8273
8274 pub fn select_next_match_internal(
8275 &mut self,
8276 display_map: &DisplaySnapshot,
8277 replace_newest: bool,
8278 autoscroll: Option<Autoscroll>,
8279 cx: &mut ViewContext<Self>,
8280 ) -> Result<()> {
8281 fn select_next_match_ranges(
8282 this: &mut Editor,
8283 range: Range<usize>,
8284 replace_newest: bool,
8285 auto_scroll: Option<Autoscroll>,
8286 cx: &mut ViewContext<Editor>,
8287 ) {
8288 this.unfold_ranges([range.clone()], false, true, cx);
8289 this.change_selections(auto_scroll, cx, |s| {
8290 if replace_newest {
8291 s.delete(s.newest_anchor().id);
8292 }
8293 s.insert_range(range.clone());
8294 });
8295 }
8296
8297 let buffer = &display_map.buffer_snapshot;
8298 let mut selections = self.selections.all::<usize>(cx);
8299 if let Some(mut select_next_state) = self.select_next_state.take() {
8300 let query = &select_next_state.query;
8301 if !select_next_state.done {
8302 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8303 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8304 let mut next_selected_range = None;
8305
8306 let bytes_after_last_selection =
8307 buffer.bytes_in_range(last_selection.end..buffer.len());
8308 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8309 let query_matches = query
8310 .stream_find_iter(bytes_after_last_selection)
8311 .map(|result| (last_selection.end, result))
8312 .chain(
8313 query
8314 .stream_find_iter(bytes_before_first_selection)
8315 .map(|result| (0, result)),
8316 );
8317
8318 for (start_offset, query_match) in query_matches {
8319 let query_match = query_match.unwrap(); // can only fail due to I/O
8320 let offset_range =
8321 start_offset + query_match.start()..start_offset + query_match.end();
8322 let display_range = offset_range.start.to_display_point(display_map)
8323 ..offset_range.end.to_display_point(display_map);
8324
8325 if !select_next_state.wordwise
8326 || (!movement::is_inside_word(display_map, display_range.start)
8327 && !movement::is_inside_word(display_map, display_range.end))
8328 {
8329 // TODO: This is n^2, because we might check all the selections
8330 if !selections
8331 .iter()
8332 .any(|selection| selection.range().overlaps(&offset_range))
8333 {
8334 next_selected_range = Some(offset_range);
8335 break;
8336 }
8337 }
8338 }
8339
8340 if let Some(next_selected_range) = next_selected_range {
8341 select_next_match_ranges(
8342 self,
8343 next_selected_range,
8344 replace_newest,
8345 autoscroll,
8346 cx,
8347 );
8348 } else {
8349 select_next_state.done = true;
8350 }
8351 }
8352
8353 self.select_next_state = Some(select_next_state);
8354 } else {
8355 let mut only_carets = true;
8356 let mut same_text_selected = true;
8357 let mut selected_text = None;
8358
8359 let mut selections_iter = selections.iter().peekable();
8360 while let Some(selection) = selections_iter.next() {
8361 if selection.start != selection.end {
8362 only_carets = false;
8363 }
8364
8365 if same_text_selected {
8366 if selected_text.is_none() {
8367 selected_text =
8368 Some(buffer.text_for_range(selection.range()).collect::<String>());
8369 }
8370
8371 if let Some(next_selection) = selections_iter.peek() {
8372 if next_selection.range().len() == selection.range().len() {
8373 let next_selected_text = buffer
8374 .text_for_range(next_selection.range())
8375 .collect::<String>();
8376 if Some(next_selected_text) != selected_text {
8377 same_text_selected = false;
8378 selected_text = None;
8379 }
8380 } else {
8381 same_text_selected = false;
8382 selected_text = None;
8383 }
8384 }
8385 }
8386 }
8387
8388 if only_carets {
8389 for selection in &mut selections {
8390 let word_range = movement::surrounding_word(
8391 display_map,
8392 selection.start.to_display_point(display_map),
8393 );
8394 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8395 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8396 selection.goal = SelectionGoal::None;
8397 selection.reversed = false;
8398 select_next_match_ranges(
8399 self,
8400 selection.start..selection.end,
8401 replace_newest,
8402 autoscroll,
8403 cx,
8404 );
8405 }
8406
8407 if selections.len() == 1 {
8408 let selection = selections
8409 .last()
8410 .expect("ensured that there's only one selection");
8411 let query = buffer
8412 .text_for_range(selection.start..selection.end)
8413 .collect::<String>();
8414 let is_empty = query.is_empty();
8415 let select_state = SelectNextState {
8416 query: AhoCorasick::new(&[query])?,
8417 wordwise: true,
8418 done: is_empty,
8419 };
8420 self.select_next_state = Some(select_state);
8421 } else {
8422 self.select_next_state = None;
8423 }
8424 } else if let Some(selected_text) = selected_text {
8425 self.select_next_state = Some(SelectNextState {
8426 query: AhoCorasick::new(&[selected_text])?,
8427 wordwise: false,
8428 done: false,
8429 });
8430 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8431 }
8432 }
8433 Ok(())
8434 }
8435
8436 pub fn select_all_matches(
8437 &mut self,
8438 _action: &SelectAllMatches,
8439 cx: &mut ViewContext<Self>,
8440 ) -> Result<()> {
8441 self.push_to_selection_history();
8442 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8443
8444 self.select_next_match_internal(&display_map, false, None, cx)?;
8445 let Some(select_next_state) = self.select_next_state.as_mut() else {
8446 return Ok(());
8447 };
8448 if select_next_state.done {
8449 return Ok(());
8450 }
8451
8452 let mut new_selections = self.selections.all::<usize>(cx);
8453
8454 let buffer = &display_map.buffer_snapshot;
8455 let query_matches = select_next_state
8456 .query
8457 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8458
8459 for query_match in query_matches {
8460 let query_match = query_match.unwrap(); // can only fail due to I/O
8461 let offset_range = query_match.start()..query_match.end();
8462 let display_range = offset_range.start.to_display_point(&display_map)
8463 ..offset_range.end.to_display_point(&display_map);
8464
8465 if !select_next_state.wordwise
8466 || (!movement::is_inside_word(&display_map, display_range.start)
8467 && !movement::is_inside_word(&display_map, display_range.end))
8468 {
8469 self.selections.change_with(cx, |selections| {
8470 new_selections.push(Selection {
8471 id: selections.new_selection_id(),
8472 start: offset_range.start,
8473 end: offset_range.end,
8474 reversed: false,
8475 goal: SelectionGoal::None,
8476 });
8477 });
8478 }
8479 }
8480
8481 new_selections.sort_by_key(|selection| selection.start);
8482 let mut ix = 0;
8483 while ix + 1 < new_selections.len() {
8484 let current_selection = &new_selections[ix];
8485 let next_selection = &new_selections[ix + 1];
8486 if current_selection.range().overlaps(&next_selection.range()) {
8487 if current_selection.id < next_selection.id {
8488 new_selections.remove(ix + 1);
8489 } else {
8490 new_selections.remove(ix);
8491 }
8492 } else {
8493 ix += 1;
8494 }
8495 }
8496
8497 select_next_state.done = true;
8498 self.unfold_ranges(
8499 new_selections.iter().map(|selection| selection.range()),
8500 false,
8501 false,
8502 cx,
8503 );
8504 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8505 selections.select(new_selections)
8506 });
8507
8508 Ok(())
8509 }
8510
8511 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8512 self.push_to_selection_history();
8513 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8514 self.select_next_match_internal(
8515 &display_map,
8516 action.replace_newest,
8517 Some(Autoscroll::newest()),
8518 cx,
8519 )?;
8520 Ok(())
8521 }
8522
8523 pub fn select_previous(
8524 &mut self,
8525 action: &SelectPrevious,
8526 cx: &mut ViewContext<Self>,
8527 ) -> Result<()> {
8528 self.push_to_selection_history();
8529 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8530 let buffer = &display_map.buffer_snapshot;
8531 let mut selections = self.selections.all::<usize>(cx);
8532 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8533 let query = &select_prev_state.query;
8534 if !select_prev_state.done {
8535 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8536 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8537 let mut next_selected_range = None;
8538 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8539 let bytes_before_last_selection =
8540 buffer.reversed_bytes_in_range(0..last_selection.start);
8541 let bytes_after_first_selection =
8542 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8543 let query_matches = query
8544 .stream_find_iter(bytes_before_last_selection)
8545 .map(|result| (last_selection.start, result))
8546 .chain(
8547 query
8548 .stream_find_iter(bytes_after_first_selection)
8549 .map(|result| (buffer.len(), result)),
8550 );
8551 for (end_offset, query_match) in query_matches {
8552 let query_match = query_match.unwrap(); // can only fail due to I/O
8553 let offset_range =
8554 end_offset - query_match.end()..end_offset - query_match.start();
8555 let display_range = offset_range.start.to_display_point(&display_map)
8556 ..offset_range.end.to_display_point(&display_map);
8557
8558 if !select_prev_state.wordwise
8559 || (!movement::is_inside_word(&display_map, display_range.start)
8560 && !movement::is_inside_word(&display_map, display_range.end))
8561 {
8562 next_selected_range = Some(offset_range);
8563 break;
8564 }
8565 }
8566
8567 if let Some(next_selected_range) = next_selected_range {
8568 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
8569 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8570 if action.replace_newest {
8571 s.delete(s.newest_anchor().id);
8572 }
8573 s.insert_range(next_selected_range);
8574 });
8575 } else {
8576 select_prev_state.done = true;
8577 }
8578 }
8579
8580 self.select_prev_state = Some(select_prev_state);
8581 } else {
8582 let mut only_carets = true;
8583 let mut same_text_selected = true;
8584 let mut selected_text = None;
8585
8586 let mut selections_iter = selections.iter().peekable();
8587 while let Some(selection) = selections_iter.next() {
8588 if selection.start != selection.end {
8589 only_carets = false;
8590 }
8591
8592 if same_text_selected {
8593 if selected_text.is_none() {
8594 selected_text =
8595 Some(buffer.text_for_range(selection.range()).collect::<String>());
8596 }
8597
8598 if let Some(next_selection) = selections_iter.peek() {
8599 if next_selection.range().len() == selection.range().len() {
8600 let next_selected_text = buffer
8601 .text_for_range(next_selection.range())
8602 .collect::<String>();
8603 if Some(next_selected_text) != selected_text {
8604 same_text_selected = false;
8605 selected_text = None;
8606 }
8607 } else {
8608 same_text_selected = false;
8609 selected_text = None;
8610 }
8611 }
8612 }
8613 }
8614
8615 if only_carets {
8616 for selection in &mut selections {
8617 let word_range = movement::surrounding_word(
8618 &display_map,
8619 selection.start.to_display_point(&display_map),
8620 );
8621 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8622 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8623 selection.goal = SelectionGoal::None;
8624 selection.reversed = false;
8625 }
8626 if selections.len() == 1 {
8627 let selection = selections
8628 .last()
8629 .expect("ensured that there's only one selection");
8630 let query = buffer
8631 .text_for_range(selection.start..selection.end)
8632 .collect::<String>();
8633 let is_empty = query.is_empty();
8634 let select_state = SelectNextState {
8635 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8636 wordwise: true,
8637 done: is_empty,
8638 };
8639 self.select_prev_state = Some(select_state);
8640 } else {
8641 self.select_prev_state = None;
8642 }
8643
8644 self.unfold_ranges(
8645 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8646 false,
8647 true,
8648 cx,
8649 );
8650 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8651 s.select(selections);
8652 });
8653 } else if let Some(selected_text) = selected_text {
8654 self.select_prev_state = Some(SelectNextState {
8655 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8656 wordwise: false,
8657 done: false,
8658 });
8659 self.select_previous(action, cx)?;
8660 }
8661 }
8662 Ok(())
8663 }
8664
8665 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8666 let text_layout_details = &self.text_layout_details(cx);
8667 self.transact(cx, |this, cx| {
8668 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8669 let mut edits = Vec::new();
8670 let mut selection_edit_ranges = Vec::new();
8671 let mut last_toggled_row = None;
8672 let snapshot = this.buffer.read(cx).read(cx);
8673 let empty_str: Arc<str> = Arc::default();
8674 let mut suffixes_inserted = Vec::new();
8675
8676 fn comment_prefix_range(
8677 snapshot: &MultiBufferSnapshot,
8678 row: MultiBufferRow,
8679 comment_prefix: &str,
8680 comment_prefix_whitespace: &str,
8681 ) -> Range<Point> {
8682 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
8683
8684 let mut line_bytes = snapshot
8685 .bytes_in_range(start..snapshot.max_point())
8686 .flatten()
8687 .copied();
8688
8689 // If this line currently begins with the line comment prefix, then record
8690 // the range containing the prefix.
8691 if line_bytes
8692 .by_ref()
8693 .take(comment_prefix.len())
8694 .eq(comment_prefix.bytes())
8695 {
8696 // Include any whitespace that matches the comment prefix.
8697 let matching_whitespace_len = line_bytes
8698 .zip(comment_prefix_whitespace.bytes())
8699 .take_while(|(a, b)| a == b)
8700 .count() as u32;
8701 let end = Point::new(
8702 start.row,
8703 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8704 );
8705 start..end
8706 } else {
8707 start..start
8708 }
8709 }
8710
8711 fn comment_suffix_range(
8712 snapshot: &MultiBufferSnapshot,
8713 row: MultiBufferRow,
8714 comment_suffix: &str,
8715 comment_suffix_has_leading_space: bool,
8716 ) -> Range<Point> {
8717 let end = Point::new(row.0, snapshot.line_len(row));
8718 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8719
8720 let mut line_end_bytes = snapshot
8721 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8722 .flatten()
8723 .copied();
8724
8725 let leading_space_len = if suffix_start_column > 0
8726 && line_end_bytes.next() == Some(b' ')
8727 && comment_suffix_has_leading_space
8728 {
8729 1
8730 } else {
8731 0
8732 };
8733
8734 // If this line currently begins with the line comment prefix, then record
8735 // the range containing the prefix.
8736 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8737 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8738 start..end
8739 } else {
8740 end..end
8741 }
8742 }
8743
8744 // TODO: Handle selections that cross excerpts
8745 for selection in &mut selections {
8746 let start_column = snapshot
8747 .indent_size_for_line(MultiBufferRow(selection.start.row))
8748 .len;
8749 let language = if let Some(language) =
8750 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8751 {
8752 language
8753 } else {
8754 continue;
8755 };
8756
8757 selection_edit_ranges.clear();
8758
8759 // If multiple selections contain a given row, avoid processing that
8760 // row more than once.
8761 let mut start_row = MultiBufferRow(selection.start.row);
8762 if last_toggled_row == Some(start_row) {
8763 start_row = start_row.next_row();
8764 }
8765 let end_row =
8766 if selection.end.row > selection.start.row && selection.end.column == 0 {
8767 MultiBufferRow(selection.end.row - 1)
8768 } else {
8769 MultiBufferRow(selection.end.row)
8770 };
8771 last_toggled_row = Some(end_row);
8772
8773 if start_row > end_row {
8774 continue;
8775 }
8776
8777 // If the language has line comments, toggle those.
8778 let full_comment_prefixes = language.line_comment_prefixes();
8779 if !full_comment_prefixes.is_empty() {
8780 let first_prefix = full_comment_prefixes
8781 .first()
8782 .expect("prefixes is non-empty");
8783 let prefix_trimmed_lengths = full_comment_prefixes
8784 .iter()
8785 .map(|p| p.trim_end_matches(' ').len())
8786 .collect::<SmallVec<[usize; 4]>>();
8787
8788 let mut all_selection_lines_are_comments = true;
8789
8790 for row in start_row.0..=end_row.0 {
8791 let row = MultiBufferRow(row);
8792 if start_row < end_row && snapshot.is_line_blank(row) {
8793 continue;
8794 }
8795
8796 let prefix_range = full_comment_prefixes
8797 .iter()
8798 .zip(prefix_trimmed_lengths.iter().copied())
8799 .map(|(prefix, trimmed_prefix_len)| {
8800 comment_prefix_range(
8801 snapshot.deref(),
8802 row,
8803 &prefix[..trimmed_prefix_len],
8804 &prefix[trimmed_prefix_len..],
8805 )
8806 })
8807 .max_by_key(|range| range.end.column - range.start.column)
8808 .expect("prefixes is non-empty");
8809
8810 if prefix_range.is_empty() {
8811 all_selection_lines_are_comments = false;
8812 }
8813
8814 selection_edit_ranges.push(prefix_range);
8815 }
8816
8817 if all_selection_lines_are_comments {
8818 edits.extend(
8819 selection_edit_ranges
8820 .iter()
8821 .cloned()
8822 .map(|range| (range, empty_str.clone())),
8823 );
8824 } else {
8825 let min_column = selection_edit_ranges
8826 .iter()
8827 .map(|range| range.start.column)
8828 .min()
8829 .unwrap_or(0);
8830 edits.extend(selection_edit_ranges.iter().map(|range| {
8831 let position = Point::new(range.start.row, min_column);
8832 (position..position, first_prefix.clone())
8833 }));
8834 }
8835 } else if let Some((full_comment_prefix, comment_suffix)) =
8836 language.block_comment_delimiters()
8837 {
8838 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8839 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8840 let prefix_range = comment_prefix_range(
8841 snapshot.deref(),
8842 start_row,
8843 comment_prefix,
8844 comment_prefix_whitespace,
8845 );
8846 let suffix_range = comment_suffix_range(
8847 snapshot.deref(),
8848 end_row,
8849 comment_suffix.trim_start_matches(' '),
8850 comment_suffix.starts_with(' '),
8851 );
8852
8853 if prefix_range.is_empty() || suffix_range.is_empty() {
8854 edits.push((
8855 prefix_range.start..prefix_range.start,
8856 full_comment_prefix.clone(),
8857 ));
8858 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8859 suffixes_inserted.push((end_row, comment_suffix.len()));
8860 } else {
8861 edits.push((prefix_range, empty_str.clone()));
8862 edits.push((suffix_range, empty_str.clone()));
8863 }
8864 } else {
8865 continue;
8866 }
8867 }
8868
8869 drop(snapshot);
8870 this.buffer.update(cx, |buffer, cx| {
8871 buffer.edit(edits, None, cx);
8872 });
8873
8874 // Adjust selections so that they end before any comment suffixes that
8875 // were inserted.
8876 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8877 let mut selections = this.selections.all::<Point>(cx);
8878 let snapshot = this.buffer.read(cx).read(cx);
8879 for selection in &mut selections {
8880 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8881 match row.cmp(&MultiBufferRow(selection.end.row)) {
8882 Ordering::Less => {
8883 suffixes_inserted.next();
8884 continue;
8885 }
8886 Ordering::Greater => break,
8887 Ordering::Equal => {
8888 if selection.end.column == snapshot.line_len(row) {
8889 if selection.is_empty() {
8890 selection.start.column -= suffix_len as u32;
8891 }
8892 selection.end.column -= suffix_len as u32;
8893 }
8894 break;
8895 }
8896 }
8897 }
8898 }
8899
8900 drop(snapshot);
8901 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8902
8903 let selections = this.selections.all::<Point>(cx);
8904 let selections_on_single_row = selections.windows(2).all(|selections| {
8905 selections[0].start.row == selections[1].start.row
8906 && selections[0].end.row == selections[1].end.row
8907 && selections[0].start.row == selections[0].end.row
8908 });
8909 let selections_selecting = selections
8910 .iter()
8911 .any(|selection| selection.start != selection.end);
8912 let advance_downwards = action.advance_downwards
8913 && selections_on_single_row
8914 && !selections_selecting
8915 && !matches!(this.mode, EditorMode::SingleLine { .. });
8916
8917 if advance_downwards {
8918 let snapshot = this.buffer.read(cx).snapshot(cx);
8919
8920 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8921 s.move_cursors_with(|display_snapshot, display_point, _| {
8922 let mut point = display_point.to_point(display_snapshot);
8923 point.row += 1;
8924 point = snapshot.clip_point(point, Bias::Left);
8925 let display_point = point.to_display_point(display_snapshot);
8926 let goal = SelectionGoal::HorizontalPosition(
8927 display_snapshot
8928 .x_for_display_point(display_point, text_layout_details)
8929 .into(),
8930 );
8931 (display_point, goal)
8932 })
8933 });
8934 }
8935 });
8936 }
8937
8938 pub fn select_enclosing_symbol(
8939 &mut self,
8940 _: &SelectEnclosingSymbol,
8941 cx: &mut ViewContext<Self>,
8942 ) {
8943 let buffer = self.buffer.read(cx).snapshot(cx);
8944 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8945
8946 fn update_selection(
8947 selection: &Selection<usize>,
8948 buffer_snap: &MultiBufferSnapshot,
8949 ) -> Option<Selection<usize>> {
8950 let cursor = selection.head();
8951 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8952 for symbol in symbols.iter().rev() {
8953 let start = symbol.range.start.to_offset(buffer_snap);
8954 let end = symbol.range.end.to_offset(buffer_snap);
8955 let new_range = start..end;
8956 if start < selection.start || end > selection.end {
8957 return Some(Selection {
8958 id: selection.id,
8959 start: new_range.start,
8960 end: new_range.end,
8961 goal: SelectionGoal::None,
8962 reversed: selection.reversed,
8963 });
8964 }
8965 }
8966 None
8967 }
8968
8969 let mut selected_larger_symbol = false;
8970 let new_selections = old_selections
8971 .iter()
8972 .map(|selection| match update_selection(selection, &buffer) {
8973 Some(new_selection) => {
8974 if new_selection.range() != selection.range() {
8975 selected_larger_symbol = true;
8976 }
8977 new_selection
8978 }
8979 None => selection.clone(),
8980 })
8981 .collect::<Vec<_>>();
8982
8983 if selected_larger_symbol {
8984 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8985 s.select(new_selections);
8986 });
8987 }
8988 }
8989
8990 pub fn select_larger_syntax_node(
8991 &mut self,
8992 _: &SelectLargerSyntaxNode,
8993 cx: &mut ViewContext<Self>,
8994 ) {
8995 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8996 let buffer = self.buffer.read(cx).snapshot(cx);
8997 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8998
8999 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9000 let mut selected_larger_node = false;
9001 let new_selections = old_selections
9002 .iter()
9003 .map(|selection| {
9004 let old_range = selection.start..selection.end;
9005 let mut new_range = old_range.clone();
9006 while let Some(containing_range) =
9007 buffer.range_for_syntax_ancestor(new_range.clone())
9008 {
9009 new_range = containing_range;
9010 if !display_map.intersects_fold(new_range.start)
9011 && !display_map.intersects_fold(new_range.end)
9012 {
9013 break;
9014 }
9015 }
9016
9017 selected_larger_node |= new_range != old_range;
9018 Selection {
9019 id: selection.id,
9020 start: new_range.start,
9021 end: new_range.end,
9022 goal: SelectionGoal::None,
9023 reversed: selection.reversed,
9024 }
9025 })
9026 .collect::<Vec<_>>();
9027
9028 if selected_larger_node {
9029 stack.push(old_selections);
9030 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9031 s.select(new_selections);
9032 });
9033 }
9034 self.select_larger_syntax_node_stack = stack;
9035 }
9036
9037 pub fn select_smaller_syntax_node(
9038 &mut self,
9039 _: &SelectSmallerSyntaxNode,
9040 cx: &mut ViewContext<Self>,
9041 ) {
9042 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9043 if let Some(selections) = stack.pop() {
9044 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9045 s.select(selections.to_vec());
9046 });
9047 }
9048 self.select_larger_syntax_node_stack = stack;
9049 }
9050
9051 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9052 if !EditorSettings::get_global(cx).gutter.runnables {
9053 self.clear_tasks();
9054 return Task::ready(());
9055 }
9056 let project = self.project.clone();
9057 cx.spawn(|this, mut cx| async move {
9058 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9059 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9060 }) else {
9061 return;
9062 };
9063
9064 let Some(project) = project else {
9065 return;
9066 };
9067
9068 let hide_runnables = project
9069 .update(&mut cx, |project, cx| {
9070 // Do not display any test indicators in non-dev server remote projects.
9071 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9072 })
9073 .unwrap_or(true);
9074 if hide_runnables {
9075 return;
9076 }
9077 let new_rows =
9078 cx.background_executor()
9079 .spawn({
9080 let snapshot = display_snapshot.clone();
9081 async move {
9082 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9083 }
9084 })
9085 .await;
9086 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9087
9088 this.update(&mut cx, |this, _| {
9089 this.clear_tasks();
9090 for (key, value) in rows {
9091 this.insert_tasks(key, value);
9092 }
9093 })
9094 .ok();
9095 })
9096 }
9097 fn fetch_runnable_ranges(
9098 snapshot: &DisplaySnapshot,
9099 range: Range<Anchor>,
9100 ) -> Vec<language::RunnableRange> {
9101 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9102 }
9103
9104 fn runnable_rows(
9105 project: Model<Project>,
9106 snapshot: DisplaySnapshot,
9107 runnable_ranges: Vec<RunnableRange>,
9108 mut cx: AsyncWindowContext,
9109 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9110 runnable_ranges
9111 .into_iter()
9112 .filter_map(|mut runnable| {
9113 let tasks = cx
9114 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9115 .ok()?;
9116 if tasks.is_empty() {
9117 return None;
9118 }
9119
9120 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9121
9122 let row = snapshot
9123 .buffer_snapshot
9124 .buffer_line_for_row(MultiBufferRow(point.row))?
9125 .1
9126 .start
9127 .row;
9128
9129 let context_range =
9130 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9131 Some((
9132 (runnable.buffer_id, row),
9133 RunnableTasks {
9134 templates: tasks,
9135 offset: MultiBufferOffset(runnable.run_range.start),
9136 context_range,
9137 column: point.column,
9138 extra_variables: runnable.extra_captures,
9139 },
9140 ))
9141 })
9142 .collect()
9143 }
9144
9145 fn templates_with_tags(
9146 project: &Model<Project>,
9147 runnable: &mut Runnable,
9148 cx: &WindowContext<'_>,
9149 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9150 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9151 let (worktree_id, file) = project
9152 .buffer_for_id(runnable.buffer, cx)
9153 .and_then(|buffer| buffer.read(cx).file())
9154 .map(|file| (file.worktree_id(cx), file.clone()))
9155 .unzip();
9156
9157 (
9158 project.task_store().read(cx).task_inventory().cloned(),
9159 worktree_id,
9160 file,
9161 )
9162 });
9163
9164 let tags = mem::take(&mut runnable.tags);
9165 let mut tags: Vec<_> = tags
9166 .into_iter()
9167 .flat_map(|tag| {
9168 let tag = tag.0.clone();
9169 inventory
9170 .as_ref()
9171 .into_iter()
9172 .flat_map(|inventory| {
9173 inventory.read(cx).list_tasks(
9174 file.clone(),
9175 Some(runnable.language.clone()),
9176 worktree_id,
9177 cx,
9178 )
9179 })
9180 .filter(move |(_, template)| {
9181 template.tags.iter().any(|source_tag| source_tag == &tag)
9182 })
9183 })
9184 .sorted_by_key(|(kind, _)| kind.to_owned())
9185 .collect();
9186 if let Some((leading_tag_source, _)) = tags.first() {
9187 // Strongest source wins; if we have worktree tag binding, prefer that to
9188 // global and language bindings;
9189 // if we have a global binding, prefer that to language binding.
9190 let first_mismatch = tags
9191 .iter()
9192 .position(|(tag_source, _)| tag_source != leading_tag_source);
9193 if let Some(index) = first_mismatch {
9194 tags.truncate(index);
9195 }
9196 }
9197
9198 tags
9199 }
9200
9201 pub fn move_to_enclosing_bracket(
9202 &mut self,
9203 _: &MoveToEnclosingBracket,
9204 cx: &mut ViewContext<Self>,
9205 ) {
9206 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9207 s.move_offsets_with(|snapshot, selection| {
9208 let Some(enclosing_bracket_ranges) =
9209 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9210 else {
9211 return;
9212 };
9213
9214 let mut best_length = usize::MAX;
9215 let mut best_inside = false;
9216 let mut best_in_bracket_range = false;
9217 let mut best_destination = None;
9218 for (open, close) in enclosing_bracket_ranges {
9219 let close = close.to_inclusive();
9220 let length = close.end() - open.start;
9221 let inside = selection.start >= open.end && selection.end <= *close.start();
9222 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9223 || close.contains(&selection.head());
9224
9225 // If best is next to a bracket and current isn't, skip
9226 if !in_bracket_range && best_in_bracket_range {
9227 continue;
9228 }
9229
9230 // Prefer smaller lengths unless best is inside and current isn't
9231 if length > best_length && (best_inside || !inside) {
9232 continue;
9233 }
9234
9235 best_length = length;
9236 best_inside = inside;
9237 best_in_bracket_range = in_bracket_range;
9238 best_destination = Some(
9239 if close.contains(&selection.start) && close.contains(&selection.end) {
9240 if inside {
9241 open.end
9242 } else {
9243 open.start
9244 }
9245 } else if inside {
9246 *close.start()
9247 } else {
9248 *close.end()
9249 },
9250 );
9251 }
9252
9253 if let Some(destination) = best_destination {
9254 selection.collapse_to(destination, SelectionGoal::None);
9255 }
9256 })
9257 });
9258 }
9259
9260 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9261 self.end_selection(cx);
9262 self.selection_history.mode = SelectionHistoryMode::Undoing;
9263 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9264 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9265 self.select_next_state = entry.select_next_state;
9266 self.select_prev_state = entry.select_prev_state;
9267 self.add_selections_state = entry.add_selections_state;
9268 self.request_autoscroll(Autoscroll::newest(), cx);
9269 }
9270 self.selection_history.mode = SelectionHistoryMode::Normal;
9271 }
9272
9273 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9274 self.end_selection(cx);
9275 self.selection_history.mode = SelectionHistoryMode::Redoing;
9276 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9277 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9278 self.select_next_state = entry.select_next_state;
9279 self.select_prev_state = entry.select_prev_state;
9280 self.add_selections_state = entry.add_selections_state;
9281 self.request_autoscroll(Autoscroll::newest(), cx);
9282 }
9283 self.selection_history.mode = SelectionHistoryMode::Normal;
9284 }
9285
9286 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9287 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9288 }
9289
9290 pub fn expand_excerpts_down(
9291 &mut self,
9292 action: &ExpandExcerptsDown,
9293 cx: &mut ViewContext<Self>,
9294 ) {
9295 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9296 }
9297
9298 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9299 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9300 }
9301
9302 pub fn expand_excerpts_for_direction(
9303 &mut self,
9304 lines: u32,
9305 direction: ExpandExcerptDirection,
9306 cx: &mut ViewContext<Self>,
9307 ) {
9308 let selections = self.selections.disjoint_anchors();
9309
9310 let lines = if lines == 0 {
9311 EditorSettings::get_global(cx).expand_excerpt_lines
9312 } else {
9313 lines
9314 };
9315
9316 self.buffer.update(cx, |buffer, cx| {
9317 buffer.expand_excerpts(
9318 selections
9319 .iter()
9320 .map(|selection| selection.head().excerpt_id)
9321 .dedup(),
9322 lines,
9323 direction,
9324 cx,
9325 )
9326 })
9327 }
9328
9329 pub fn expand_excerpt(
9330 &mut self,
9331 excerpt: ExcerptId,
9332 direction: ExpandExcerptDirection,
9333 cx: &mut ViewContext<Self>,
9334 ) {
9335 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9336 self.buffer.update(cx, |buffer, cx| {
9337 buffer.expand_excerpts([excerpt], lines, direction, cx)
9338 })
9339 }
9340
9341 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9342 self.go_to_diagnostic_impl(Direction::Next, cx)
9343 }
9344
9345 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9346 self.go_to_diagnostic_impl(Direction::Prev, cx)
9347 }
9348
9349 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9350 let buffer = self.buffer.read(cx).snapshot(cx);
9351 let selection = self.selections.newest::<usize>(cx);
9352
9353 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9354 if direction == Direction::Next {
9355 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9356 let (group_id, jump_to) = popover.activation_info();
9357 if self.activate_diagnostics(group_id, cx) {
9358 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9359 let mut new_selection = s.newest_anchor().clone();
9360 new_selection.collapse_to(jump_to, SelectionGoal::None);
9361 s.select_anchors(vec![new_selection.clone()]);
9362 });
9363 }
9364 return;
9365 }
9366 }
9367
9368 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9369 active_diagnostics
9370 .primary_range
9371 .to_offset(&buffer)
9372 .to_inclusive()
9373 });
9374 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9375 if active_primary_range.contains(&selection.head()) {
9376 *active_primary_range.start()
9377 } else {
9378 selection.head()
9379 }
9380 } else {
9381 selection.head()
9382 };
9383 let snapshot = self.snapshot(cx);
9384 loop {
9385 let diagnostics = if direction == Direction::Prev {
9386 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9387 } else {
9388 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9389 }
9390 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9391 let group = diagnostics
9392 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9393 // be sorted in a stable way
9394 // skip until we are at current active diagnostic, if it exists
9395 .skip_while(|entry| {
9396 (match direction {
9397 Direction::Prev => entry.range.start >= search_start,
9398 Direction::Next => entry.range.start <= search_start,
9399 }) && self
9400 .active_diagnostics
9401 .as_ref()
9402 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9403 })
9404 .find_map(|entry| {
9405 if entry.diagnostic.is_primary
9406 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9407 && !entry.range.is_empty()
9408 // if we match with the active diagnostic, skip it
9409 && Some(entry.diagnostic.group_id)
9410 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9411 {
9412 Some((entry.range, entry.diagnostic.group_id))
9413 } else {
9414 None
9415 }
9416 });
9417
9418 if let Some((primary_range, group_id)) = group {
9419 if self.activate_diagnostics(group_id, cx) {
9420 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9421 s.select(vec![Selection {
9422 id: selection.id,
9423 start: primary_range.start,
9424 end: primary_range.start,
9425 reversed: false,
9426 goal: SelectionGoal::None,
9427 }]);
9428 });
9429 }
9430 break;
9431 } else {
9432 // Cycle around to the start of the buffer, potentially moving back to the start of
9433 // the currently active diagnostic.
9434 active_primary_range.take();
9435 if direction == Direction::Prev {
9436 if search_start == buffer.len() {
9437 break;
9438 } else {
9439 search_start = buffer.len();
9440 }
9441 } else if search_start == 0 {
9442 break;
9443 } else {
9444 search_start = 0;
9445 }
9446 }
9447 }
9448 }
9449
9450 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9451 let snapshot = self
9452 .display_map
9453 .update(cx, |display_map, cx| display_map.snapshot(cx));
9454 let selection = self.selections.newest::<Point>(cx);
9455 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9456 }
9457
9458 fn go_to_hunk_after_position(
9459 &mut self,
9460 snapshot: &DisplaySnapshot,
9461 position: Point,
9462 cx: &mut ViewContext<'_, Editor>,
9463 ) -> Option<MultiBufferDiffHunk> {
9464 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9465 snapshot,
9466 position,
9467 false,
9468 snapshot
9469 .buffer_snapshot
9470 .git_diff_hunks_in_range(MultiBufferRow(position.row + 1)..MultiBufferRow::MAX),
9471 cx,
9472 ) {
9473 return Some(hunk);
9474 }
9475
9476 let wrapped_point = Point::zero();
9477 self.go_to_next_hunk_in_direction(
9478 snapshot,
9479 wrapped_point,
9480 true,
9481 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9482 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9483 ),
9484 cx,
9485 )
9486 }
9487
9488 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9489 let snapshot = self
9490 .display_map
9491 .update(cx, |display_map, cx| display_map.snapshot(cx));
9492 let selection = self.selections.newest::<Point>(cx);
9493
9494 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9495 }
9496
9497 fn go_to_hunk_before_position(
9498 &mut self,
9499 snapshot: &DisplaySnapshot,
9500 position: Point,
9501 cx: &mut ViewContext<'_, Editor>,
9502 ) -> Option<MultiBufferDiffHunk> {
9503 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9504 snapshot,
9505 position,
9506 false,
9507 snapshot
9508 .buffer_snapshot
9509 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(position.row)),
9510 cx,
9511 ) {
9512 return Some(hunk);
9513 }
9514
9515 let wrapped_point = snapshot.buffer_snapshot.max_point();
9516 self.go_to_next_hunk_in_direction(
9517 snapshot,
9518 wrapped_point,
9519 true,
9520 snapshot
9521 .buffer_snapshot
9522 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(wrapped_point.row)),
9523 cx,
9524 )
9525 }
9526
9527 fn go_to_next_hunk_in_direction(
9528 &mut self,
9529 snapshot: &DisplaySnapshot,
9530 initial_point: Point,
9531 is_wrapped: bool,
9532 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9533 cx: &mut ViewContext<Editor>,
9534 ) -> Option<MultiBufferDiffHunk> {
9535 let display_point = initial_point.to_display_point(snapshot);
9536 let mut hunks = hunks
9537 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9538 .filter(|(display_hunk, _)| {
9539 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9540 })
9541 .dedup();
9542
9543 if let Some((display_hunk, hunk)) = hunks.next() {
9544 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9545 let row = display_hunk.start_display_row();
9546 let point = DisplayPoint::new(row, 0);
9547 s.select_display_ranges([point..point]);
9548 });
9549
9550 Some(hunk)
9551 } else {
9552 None
9553 }
9554 }
9555
9556 pub fn go_to_definition(
9557 &mut self,
9558 _: &GoToDefinition,
9559 cx: &mut ViewContext<Self>,
9560 ) -> Task<Result<Navigated>> {
9561 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9562 cx.spawn(|editor, mut cx| async move {
9563 if definition.await? == Navigated::Yes {
9564 return Ok(Navigated::Yes);
9565 }
9566 match editor.update(&mut cx, |editor, cx| {
9567 editor.find_all_references(&FindAllReferences, cx)
9568 })? {
9569 Some(references) => references.await,
9570 None => Ok(Navigated::No),
9571 }
9572 })
9573 }
9574
9575 pub fn go_to_declaration(
9576 &mut self,
9577 _: &GoToDeclaration,
9578 cx: &mut ViewContext<Self>,
9579 ) -> Task<Result<Navigated>> {
9580 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9581 }
9582
9583 pub fn go_to_declaration_split(
9584 &mut self,
9585 _: &GoToDeclaration,
9586 cx: &mut ViewContext<Self>,
9587 ) -> Task<Result<Navigated>> {
9588 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9589 }
9590
9591 pub fn go_to_implementation(
9592 &mut self,
9593 _: &GoToImplementation,
9594 cx: &mut ViewContext<Self>,
9595 ) -> Task<Result<Navigated>> {
9596 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9597 }
9598
9599 pub fn go_to_implementation_split(
9600 &mut self,
9601 _: &GoToImplementationSplit,
9602 cx: &mut ViewContext<Self>,
9603 ) -> Task<Result<Navigated>> {
9604 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9605 }
9606
9607 pub fn go_to_type_definition(
9608 &mut self,
9609 _: &GoToTypeDefinition,
9610 cx: &mut ViewContext<Self>,
9611 ) -> Task<Result<Navigated>> {
9612 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9613 }
9614
9615 pub fn go_to_definition_split(
9616 &mut self,
9617 _: &GoToDefinitionSplit,
9618 cx: &mut ViewContext<Self>,
9619 ) -> Task<Result<Navigated>> {
9620 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9621 }
9622
9623 pub fn go_to_type_definition_split(
9624 &mut self,
9625 _: &GoToTypeDefinitionSplit,
9626 cx: &mut ViewContext<Self>,
9627 ) -> Task<Result<Navigated>> {
9628 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9629 }
9630
9631 fn go_to_definition_of_kind(
9632 &mut self,
9633 kind: GotoDefinitionKind,
9634 split: bool,
9635 cx: &mut ViewContext<Self>,
9636 ) -> Task<Result<Navigated>> {
9637 let Some(provider) = self.semantics_provider.clone() else {
9638 return Task::ready(Ok(Navigated::No));
9639 };
9640 let buffer = self.buffer.read(cx);
9641 let head = self.selections.newest::<usize>(cx).head();
9642 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9643 text_anchor
9644 } else {
9645 return Task::ready(Ok(Navigated::No));
9646 };
9647
9648 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9649 return Task::ready(Ok(Navigated::No));
9650 };
9651
9652 cx.spawn(|editor, mut cx| async move {
9653 let definitions = definitions.await?;
9654 let navigated = editor
9655 .update(&mut cx, |editor, cx| {
9656 editor.navigate_to_hover_links(
9657 Some(kind),
9658 definitions
9659 .into_iter()
9660 .filter(|location| {
9661 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9662 })
9663 .map(HoverLink::Text)
9664 .collect::<Vec<_>>(),
9665 split,
9666 cx,
9667 )
9668 })?
9669 .await?;
9670 anyhow::Ok(navigated)
9671 })
9672 }
9673
9674 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9675 let position = self.selections.newest_anchor().head();
9676 let Some((buffer, buffer_position)) =
9677 self.buffer.read(cx).text_anchor_for_position(position, cx)
9678 else {
9679 return;
9680 };
9681
9682 cx.spawn(|editor, mut cx| async move {
9683 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9684 editor.update(&mut cx, |_, cx| {
9685 cx.open_url(&url);
9686 })
9687 } else {
9688 Ok(())
9689 }
9690 })
9691 .detach();
9692 }
9693
9694 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9695 let Some(workspace) = self.workspace() else {
9696 return;
9697 };
9698
9699 let position = self.selections.newest_anchor().head();
9700
9701 let Some((buffer, buffer_position)) =
9702 self.buffer.read(cx).text_anchor_for_position(position, cx)
9703 else {
9704 return;
9705 };
9706
9707 let project = self.project.clone();
9708
9709 cx.spawn(|_, mut cx| async move {
9710 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9711
9712 if let Some((_, path)) = result {
9713 workspace
9714 .update(&mut cx, |workspace, cx| {
9715 workspace.open_resolved_path(path, cx)
9716 })?
9717 .await?;
9718 }
9719 anyhow::Ok(())
9720 })
9721 .detach();
9722 }
9723
9724 pub(crate) fn navigate_to_hover_links(
9725 &mut self,
9726 kind: Option<GotoDefinitionKind>,
9727 mut definitions: Vec<HoverLink>,
9728 split: bool,
9729 cx: &mut ViewContext<Editor>,
9730 ) -> Task<Result<Navigated>> {
9731 // If there is one definition, just open it directly
9732 if definitions.len() == 1 {
9733 let definition = definitions.pop().unwrap();
9734
9735 enum TargetTaskResult {
9736 Location(Option<Location>),
9737 AlreadyNavigated,
9738 }
9739
9740 let target_task = match definition {
9741 HoverLink::Text(link) => {
9742 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9743 }
9744 HoverLink::InlayHint(lsp_location, server_id) => {
9745 let computation = self.compute_target_location(lsp_location, server_id, cx);
9746 cx.background_executor().spawn(async move {
9747 let location = computation.await?;
9748 Ok(TargetTaskResult::Location(location))
9749 })
9750 }
9751 HoverLink::Url(url) => {
9752 cx.open_url(&url);
9753 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9754 }
9755 HoverLink::File(path) => {
9756 if let Some(workspace) = self.workspace() {
9757 cx.spawn(|_, mut cx| async move {
9758 workspace
9759 .update(&mut cx, |workspace, cx| {
9760 workspace.open_resolved_path(path, cx)
9761 })?
9762 .await
9763 .map(|_| TargetTaskResult::AlreadyNavigated)
9764 })
9765 } else {
9766 Task::ready(Ok(TargetTaskResult::Location(None)))
9767 }
9768 }
9769 };
9770 cx.spawn(|editor, mut cx| async move {
9771 let target = match target_task.await.context("target resolution task")? {
9772 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9773 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9774 TargetTaskResult::Location(Some(target)) => target,
9775 };
9776
9777 editor.update(&mut cx, |editor, cx| {
9778 let Some(workspace) = editor.workspace() else {
9779 return Navigated::No;
9780 };
9781 let pane = workspace.read(cx).active_pane().clone();
9782
9783 let range = target.range.to_offset(target.buffer.read(cx));
9784 let range = editor.range_for_match(&range);
9785
9786 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9787 let buffer = target.buffer.read(cx);
9788 let range = check_multiline_range(buffer, range);
9789 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9790 s.select_ranges([range]);
9791 });
9792 } else {
9793 cx.window_context().defer(move |cx| {
9794 let target_editor: View<Self> =
9795 workspace.update(cx, |workspace, cx| {
9796 let pane = if split {
9797 workspace.adjacent_pane(cx)
9798 } else {
9799 workspace.active_pane().clone()
9800 };
9801
9802 workspace.open_project_item(
9803 pane,
9804 target.buffer.clone(),
9805 true,
9806 true,
9807 cx,
9808 )
9809 });
9810 target_editor.update(cx, |target_editor, cx| {
9811 // When selecting a definition in a different buffer, disable the nav history
9812 // to avoid creating a history entry at the previous cursor location.
9813 pane.update(cx, |pane, _| pane.disable_history());
9814 let buffer = target.buffer.read(cx);
9815 let range = check_multiline_range(buffer, range);
9816 target_editor.change_selections(
9817 Some(Autoscroll::focused()),
9818 cx,
9819 |s| {
9820 s.select_ranges([range]);
9821 },
9822 );
9823 pane.update(cx, |pane, _| pane.enable_history());
9824 });
9825 });
9826 }
9827 Navigated::Yes
9828 })
9829 })
9830 } else if !definitions.is_empty() {
9831 cx.spawn(|editor, mut cx| async move {
9832 let (title, location_tasks, workspace) = editor
9833 .update(&mut cx, |editor, cx| {
9834 let tab_kind = match kind {
9835 Some(GotoDefinitionKind::Implementation) => "Implementations",
9836 _ => "Definitions",
9837 };
9838 let title = definitions
9839 .iter()
9840 .find_map(|definition| match definition {
9841 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9842 let buffer = origin.buffer.read(cx);
9843 format!(
9844 "{} for {}",
9845 tab_kind,
9846 buffer
9847 .text_for_range(origin.range.clone())
9848 .collect::<String>()
9849 )
9850 }),
9851 HoverLink::InlayHint(_, _) => None,
9852 HoverLink::Url(_) => None,
9853 HoverLink::File(_) => None,
9854 })
9855 .unwrap_or(tab_kind.to_string());
9856 let location_tasks = definitions
9857 .into_iter()
9858 .map(|definition| match definition {
9859 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9860 HoverLink::InlayHint(lsp_location, server_id) => {
9861 editor.compute_target_location(lsp_location, server_id, cx)
9862 }
9863 HoverLink::Url(_) => Task::ready(Ok(None)),
9864 HoverLink::File(_) => Task::ready(Ok(None)),
9865 })
9866 .collect::<Vec<_>>();
9867 (title, location_tasks, editor.workspace().clone())
9868 })
9869 .context("location tasks preparation")?;
9870
9871 let locations = future::join_all(location_tasks)
9872 .await
9873 .into_iter()
9874 .filter_map(|location| location.transpose())
9875 .collect::<Result<_>>()
9876 .context("location tasks")?;
9877
9878 let Some(workspace) = workspace else {
9879 return Ok(Navigated::No);
9880 };
9881 let opened = workspace
9882 .update(&mut cx, |workspace, cx| {
9883 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9884 })
9885 .ok();
9886
9887 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9888 })
9889 } else {
9890 Task::ready(Ok(Navigated::No))
9891 }
9892 }
9893
9894 fn compute_target_location(
9895 &self,
9896 lsp_location: lsp::Location,
9897 server_id: LanguageServerId,
9898 cx: &mut ViewContext<Self>,
9899 ) -> Task<anyhow::Result<Option<Location>>> {
9900 let Some(project) = self.project.clone() else {
9901 return Task::Ready(Some(Ok(None)));
9902 };
9903
9904 cx.spawn(move |editor, mut cx| async move {
9905 let location_task = editor.update(&mut cx, |_, cx| {
9906 project.update(cx, |project, cx| {
9907 let language_server_name = project
9908 .language_server_statuses(cx)
9909 .find(|(id, _)| server_id == *id)
9910 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9911 language_server_name.map(|language_server_name| {
9912 project.open_local_buffer_via_lsp(
9913 lsp_location.uri.clone(),
9914 server_id,
9915 language_server_name,
9916 cx,
9917 )
9918 })
9919 })
9920 })?;
9921 let location = match location_task {
9922 Some(task) => Some({
9923 let target_buffer_handle = task.await.context("open local buffer")?;
9924 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9925 let target_start = target_buffer
9926 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9927 let target_end = target_buffer
9928 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9929 target_buffer.anchor_after(target_start)
9930 ..target_buffer.anchor_before(target_end)
9931 })?;
9932 Location {
9933 buffer: target_buffer_handle,
9934 range,
9935 }
9936 }),
9937 None => None,
9938 };
9939 Ok(location)
9940 })
9941 }
9942
9943 pub fn find_all_references(
9944 &mut self,
9945 _: &FindAllReferences,
9946 cx: &mut ViewContext<Self>,
9947 ) -> Option<Task<Result<Navigated>>> {
9948 let multi_buffer = self.buffer.read(cx);
9949 let selection = self.selections.newest::<usize>(cx);
9950 let head = selection.head();
9951
9952 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9953 let head_anchor = multi_buffer_snapshot.anchor_at(
9954 head,
9955 if head < selection.tail() {
9956 Bias::Right
9957 } else {
9958 Bias::Left
9959 },
9960 );
9961
9962 match self
9963 .find_all_references_task_sources
9964 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9965 {
9966 Ok(_) => {
9967 log::info!(
9968 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9969 );
9970 return None;
9971 }
9972 Err(i) => {
9973 self.find_all_references_task_sources.insert(i, head_anchor);
9974 }
9975 }
9976
9977 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9978 let workspace = self.workspace()?;
9979 let project = workspace.read(cx).project().clone();
9980 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9981 Some(cx.spawn(|editor, mut cx| async move {
9982 let _cleanup = defer({
9983 let mut cx = cx.clone();
9984 move || {
9985 let _ = editor.update(&mut cx, |editor, _| {
9986 if let Ok(i) =
9987 editor
9988 .find_all_references_task_sources
9989 .binary_search_by(|anchor| {
9990 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9991 })
9992 {
9993 editor.find_all_references_task_sources.remove(i);
9994 }
9995 });
9996 }
9997 });
9998
9999 let locations = references.await?;
10000 if locations.is_empty() {
10001 return anyhow::Ok(Navigated::No);
10002 }
10003
10004 workspace.update(&mut cx, |workspace, cx| {
10005 let title = locations
10006 .first()
10007 .as_ref()
10008 .map(|location| {
10009 let buffer = location.buffer.read(cx);
10010 format!(
10011 "References to `{}`",
10012 buffer
10013 .text_for_range(location.range.clone())
10014 .collect::<String>()
10015 )
10016 })
10017 .unwrap();
10018 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
10019 Navigated::Yes
10020 })
10021 }))
10022 }
10023
10024 /// Opens a multibuffer with the given project locations in it
10025 pub fn open_locations_in_multibuffer(
10026 workspace: &mut Workspace,
10027 mut locations: Vec<Location>,
10028 title: String,
10029 split: bool,
10030 cx: &mut ViewContext<Workspace>,
10031 ) {
10032 // If there are multiple definitions, open them in a multibuffer
10033 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10034 let mut locations = locations.into_iter().peekable();
10035 let mut ranges_to_highlight = Vec::new();
10036 let capability = workspace.project().read(cx).capability();
10037
10038 let excerpt_buffer = cx.new_model(|cx| {
10039 let mut multibuffer = MultiBuffer::new(capability);
10040 while let Some(location) = locations.next() {
10041 let buffer = location.buffer.read(cx);
10042 let mut ranges_for_buffer = Vec::new();
10043 let range = location.range.to_offset(buffer);
10044 ranges_for_buffer.push(range.clone());
10045
10046 while let Some(next_location) = locations.peek() {
10047 if next_location.buffer == location.buffer {
10048 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10049 locations.next();
10050 } else {
10051 break;
10052 }
10053 }
10054
10055 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10056 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10057 location.buffer.clone(),
10058 ranges_for_buffer,
10059 DEFAULT_MULTIBUFFER_CONTEXT,
10060 cx,
10061 ))
10062 }
10063
10064 multibuffer.with_title(title)
10065 });
10066
10067 let editor = cx.new_view(|cx| {
10068 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10069 });
10070 editor.update(cx, |editor, cx| {
10071 if let Some(first_range) = ranges_to_highlight.first() {
10072 editor.change_selections(None, cx, |selections| {
10073 selections.clear_disjoint();
10074 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10075 });
10076 }
10077 editor.highlight_background::<Self>(
10078 &ranges_to_highlight,
10079 |theme| theme.editor_highlighted_line_background,
10080 cx,
10081 );
10082 });
10083
10084 let item = Box::new(editor);
10085 let item_id = item.item_id();
10086
10087 if split {
10088 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10089 } else {
10090 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10091 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10092 pane.close_current_preview_item(cx)
10093 } else {
10094 None
10095 }
10096 });
10097 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10098 }
10099 workspace.active_pane().update(cx, |pane, cx| {
10100 pane.set_preview_item_id(Some(item_id), cx);
10101 });
10102 }
10103
10104 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10105 use language::ToOffset as _;
10106
10107 let provider = self.semantics_provider.clone()?;
10108 let selection = self.selections.newest_anchor().clone();
10109 let (cursor_buffer, cursor_buffer_position) = self
10110 .buffer
10111 .read(cx)
10112 .text_anchor_for_position(selection.head(), cx)?;
10113 let (tail_buffer, cursor_buffer_position_end) = self
10114 .buffer
10115 .read(cx)
10116 .text_anchor_for_position(selection.tail(), cx)?;
10117 if tail_buffer != cursor_buffer {
10118 return None;
10119 }
10120
10121 let snapshot = cursor_buffer.read(cx).snapshot();
10122 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10123 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10124 let prepare_rename = provider
10125 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10126 .unwrap_or_else(|| Task::ready(Ok(None)));
10127 drop(snapshot);
10128
10129 Some(cx.spawn(|this, mut cx| async move {
10130 let rename_range = if let Some(range) = prepare_rename.await? {
10131 Some(range)
10132 } else {
10133 this.update(&mut cx, |this, cx| {
10134 let buffer = this.buffer.read(cx).snapshot(cx);
10135 let mut buffer_highlights = this
10136 .document_highlights_for_position(selection.head(), &buffer)
10137 .filter(|highlight| {
10138 highlight.start.excerpt_id == selection.head().excerpt_id
10139 && highlight.end.excerpt_id == selection.head().excerpt_id
10140 });
10141 buffer_highlights
10142 .next()
10143 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10144 })?
10145 };
10146 if let Some(rename_range) = rename_range {
10147 this.update(&mut cx, |this, cx| {
10148 let snapshot = cursor_buffer.read(cx).snapshot();
10149 let rename_buffer_range = rename_range.to_offset(&snapshot);
10150 let cursor_offset_in_rename_range =
10151 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10152 let cursor_offset_in_rename_range_end =
10153 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10154
10155 this.take_rename(false, cx);
10156 let buffer = this.buffer.read(cx).read(cx);
10157 let cursor_offset = selection.head().to_offset(&buffer);
10158 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10159 let rename_end = rename_start + rename_buffer_range.len();
10160 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10161 let mut old_highlight_id = None;
10162 let old_name: Arc<str> = buffer
10163 .chunks(rename_start..rename_end, true)
10164 .map(|chunk| {
10165 if old_highlight_id.is_none() {
10166 old_highlight_id = chunk.syntax_highlight_id;
10167 }
10168 chunk.text
10169 })
10170 .collect::<String>()
10171 .into();
10172
10173 drop(buffer);
10174
10175 // Position the selection in the rename editor so that it matches the current selection.
10176 this.show_local_selections = false;
10177 let rename_editor = cx.new_view(|cx| {
10178 let mut editor = Editor::single_line(cx);
10179 editor.buffer.update(cx, |buffer, cx| {
10180 buffer.edit([(0..0, old_name.clone())], None, cx)
10181 });
10182 let rename_selection_range = match cursor_offset_in_rename_range
10183 .cmp(&cursor_offset_in_rename_range_end)
10184 {
10185 Ordering::Equal => {
10186 editor.select_all(&SelectAll, cx);
10187 return editor;
10188 }
10189 Ordering::Less => {
10190 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10191 }
10192 Ordering::Greater => {
10193 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10194 }
10195 };
10196 if rename_selection_range.end > old_name.len() {
10197 editor.select_all(&SelectAll, cx);
10198 } else {
10199 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10200 s.select_ranges([rename_selection_range]);
10201 });
10202 }
10203 editor
10204 });
10205 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10206 if e == &EditorEvent::Focused {
10207 cx.emit(EditorEvent::FocusedIn)
10208 }
10209 })
10210 .detach();
10211
10212 let write_highlights =
10213 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10214 let read_highlights =
10215 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10216 let ranges = write_highlights
10217 .iter()
10218 .flat_map(|(_, ranges)| ranges.iter())
10219 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10220 .cloned()
10221 .collect();
10222
10223 this.highlight_text::<Rename>(
10224 ranges,
10225 HighlightStyle {
10226 fade_out: Some(0.6),
10227 ..Default::default()
10228 },
10229 cx,
10230 );
10231 let rename_focus_handle = rename_editor.focus_handle(cx);
10232 cx.focus(&rename_focus_handle);
10233 let block_id = this.insert_blocks(
10234 [BlockProperties {
10235 style: BlockStyle::Flex,
10236 position: range.start,
10237 height: 1,
10238 render: Box::new({
10239 let rename_editor = rename_editor.clone();
10240 move |cx: &mut BlockContext| {
10241 let mut text_style = cx.editor_style.text.clone();
10242 if let Some(highlight_style) = old_highlight_id
10243 .and_then(|h| h.style(&cx.editor_style.syntax))
10244 {
10245 text_style = text_style.highlight(highlight_style);
10246 }
10247 div()
10248 .pl(cx.anchor_x)
10249 .child(EditorElement::new(
10250 &rename_editor,
10251 EditorStyle {
10252 background: cx.theme().system().transparent,
10253 local_player: cx.editor_style.local_player,
10254 text: text_style,
10255 scrollbar_width: cx.editor_style.scrollbar_width,
10256 syntax: cx.editor_style.syntax.clone(),
10257 status: cx.editor_style.status.clone(),
10258 inlay_hints_style: HighlightStyle {
10259 font_weight: Some(FontWeight::BOLD),
10260 ..make_inlay_hints_style(cx)
10261 },
10262 suggestions_style: HighlightStyle {
10263 color: Some(cx.theme().status().predictive),
10264 ..HighlightStyle::default()
10265 },
10266 ..EditorStyle::default()
10267 },
10268 ))
10269 .into_any_element()
10270 }
10271 }),
10272 disposition: BlockDisposition::Below,
10273 priority: 0,
10274 }],
10275 Some(Autoscroll::fit()),
10276 cx,
10277 )[0];
10278 this.pending_rename = Some(RenameState {
10279 range,
10280 old_name,
10281 editor: rename_editor,
10282 block_id,
10283 });
10284 })?;
10285 }
10286
10287 Ok(())
10288 }))
10289 }
10290
10291 pub fn confirm_rename(
10292 &mut self,
10293 _: &ConfirmRename,
10294 cx: &mut ViewContext<Self>,
10295 ) -> Option<Task<Result<()>>> {
10296 let rename = self.take_rename(false, cx)?;
10297 let workspace = self.workspace()?.downgrade();
10298 let (buffer, start) = self
10299 .buffer
10300 .read(cx)
10301 .text_anchor_for_position(rename.range.start, cx)?;
10302 let (end_buffer, _) = self
10303 .buffer
10304 .read(cx)
10305 .text_anchor_for_position(rename.range.end, cx)?;
10306 if buffer != end_buffer {
10307 return None;
10308 }
10309
10310 let old_name = rename.old_name;
10311 let new_name = rename.editor.read(cx).text(cx);
10312
10313 let rename = self.semantics_provider.as_ref()?.perform_rename(
10314 &buffer,
10315 start,
10316 new_name.clone(),
10317 cx,
10318 )?;
10319
10320 Some(cx.spawn(|editor, mut cx| async move {
10321 let project_transaction = rename.await?;
10322 Self::open_project_transaction(
10323 &editor,
10324 workspace,
10325 project_transaction,
10326 format!("Rename: {} → {}", old_name, new_name),
10327 cx.clone(),
10328 )
10329 .await?;
10330
10331 editor.update(&mut cx, |editor, cx| {
10332 editor.refresh_document_highlights(cx);
10333 })?;
10334 Ok(())
10335 }))
10336 }
10337
10338 fn take_rename(
10339 &mut self,
10340 moving_cursor: bool,
10341 cx: &mut ViewContext<Self>,
10342 ) -> Option<RenameState> {
10343 let rename = self.pending_rename.take()?;
10344 if rename.editor.focus_handle(cx).is_focused(cx) {
10345 cx.focus(&self.focus_handle);
10346 }
10347
10348 self.remove_blocks(
10349 [rename.block_id].into_iter().collect(),
10350 Some(Autoscroll::fit()),
10351 cx,
10352 );
10353 self.clear_highlights::<Rename>(cx);
10354 self.show_local_selections = true;
10355
10356 if moving_cursor {
10357 let rename_editor = rename.editor.read(cx);
10358 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
10359
10360 // Update the selection to match the position of the selection inside
10361 // the rename editor.
10362 let snapshot = self.buffer.read(cx).read(cx);
10363 let rename_range = rename.range.to_offset(&snapshot);
10364 let cursor_in_editor = snapshot
10365 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10366 .min(rename_range.end);
10367 drop(snapshot);
10368
10369 self.change_selections(None, cx, |s| {
10370 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10371 });
10372 } else {
10373 self.refresh_document_highlights(cx);
10374 }
10375
10376 Some(rename)
10377 }
10378
10379 pub fn pending_rename(&self) -> Option<&RenameState> {
10380 self.pending_rename.as_ref()
10381 }
10382
10383 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10384 let project = match &self.project {
10385 Some(project) => project.clone(),
10386 None => return None,
10387 };
10388
10389 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10390 }
10391
10392 fn format_selections(
10393 &mut self,
10394 _: &FormatSelections,
10395 cx: &mut ViewContext<Self>,
10396 ) -> Option<Task<Result<()>>> {
10397 let project = match &self.project {
10398 Some(project) => project.clone(),
10399 None => return None,
10400 };
10401
10402 let selections = self
10403 .selections
10404 .all_adjusted(cx)
10405 .into_iter()
10406 .filter(|s| !s.is_empty())
10407 .collect_vec();
10408
10409 Some(self.perform_format(
10410 project,
10411 FormatTrigger::Manual,
10412 FormatTarget::Ranges(selections),
10413 cx,
10414 ))
10415 }
10416
10417 fn perform_format(
10418 &mut self,
10419 project: Model<Project>,
10420 trigger: FormatTrigger,
10421 target: FormatTarget,
10422 cx: &mut ViewContext<Self>,
10423 ) -> Task<Result<()>> {
10424 let buffer = self.buffer().clone();
10425 let mut buffers = buffer.read(cx).all_buffers();
10426 if trigger == FormatTrigger::Save {
10427 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10428 }
10429
10430 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10431 let format = project.update(cx, |project, cx| {
10432 project.format(buffers, true, trigger, target, cx)
10433 });
10434
10435 cx.spawn(|_, mut cx| async move {
10436 let transaction = futures::select_biased! {
10437 () = timeout => {
10438 log::warn!("timed out waiting for formatting");
10439 None
10440 }
10441 transaction = format.log_err().fuse() => transaction,
10442 };
10443
10444 buffer
10445 .update(&mut cx, |buffer, cx| {
10446 if let Some(transaction) = transaction {
10447 if !buffer.is_singleton() {
10448 buffer.push_transaction(&transaction.0, cx);
10449 }
10450 }
10451
10452 cx.notify();
10453 })
10454 .ok();
10455
10456 Ok(())
10457 })
10458 }
10459
10460 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10461 if let Some(project) = self.project.clone() {
10462 self.buffer.update(cx, |multi_buffer, cx| {
10463 project.update(cx, |project, cx| {
10464 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10465 });
10466 })
10467 }
10468 }
10469
10470 fn cancel_language_server_work(
10471 &mut self,
10472 _: &CancelLanguageServerWork,
10473 cx: &mut ViewContext<Self>,
10474 ) {
10475 if let Some(project) = self.project.clone() {
10476 self.buffer.update(cx, |multi_buffer, cx| {
10477 project.update(cx, |project, cx| {
10478 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10479 });
10480 })
10481 }
10482 }
10483
10484 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10485 cx.show_character_palette();
10486 }
10487
10488 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10489 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10490 let buffer = self.buffer.read(cx).snapshot(cx);
10491 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10492 let is_valid = buffer
10493 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10494 .any(|entry| {
10495 entry.diagnostic.is_primary
10496 && !entry.range.is_empty()
10497 && entry.range.start == primary_range_start
10498 && entry.diagnostic.message == active_diagnostics.primary_message
10499 });
10500
10501 if is_valid != active_diagnostics.is_valid {
10502 active_diagnostics.is_valid = is_valid;
10503 let mut new_styles = HashMap::default();
10504 for (block_id, diagnostic) in &active_diagnostics.blocks {
10505 new_styles.insert(
10506 *block_id,
10507 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10508 );
10509 }
10510 self.display_map.update(cx, |display_map, _cx| {
10511 display_map.replace_blocks(new_styles)
10512 });
10513 }
10514 }
10515 }
10516
10517 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10518 self.dismiss_diagnostics(cx);
10519 let snapshot = self.snapshot(cx);
10520 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10521 let buffer = self.buffer.read(cx).snapshot(cx);
10522
10523 let mut primary_range = None;
10524 let mut primary_message = None;
10525 let mut group_end = Point::zero();
10526 let diagnostic_group = buffer
10527 .diagnostic_group::<MultiBufferPoint>(group_id)
10528 .filter_map(|entry| {
10529 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10530 && (entry.range.start.row == entry.range.end.row
10531 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10532 {
10533 return None;
10534 }
10535 if entry.range.end > group_end {
10536 group_end = entry.range.end;
10537 }
10538 if entry.diagnostic.is_primary {
10539 primary_range = Some(entry.range.clone());
10540 primary_message = Some(entry.diagnostic.message.clone());
10541 }
10542 Some(entry)
10543 })
10544 .collect::<Vec<_>>();
10545 let primary_range = primary_range?;
10546 let primary_message = primary_message?;
10547 let primary_range =
10548 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10549
10550 let blocks = display_map
10551 .insert_blocks(
10552 diagnostic_group.iter().map(|entry| {
10553 let diagnostic = entry.diagnostic.clone();
10554 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10555 BlockProperties {
10556 style: BlockStyle::Fixed,
10557 position: buffer.anchor_after(entry.range.start),
10558 height: message_height,
10559 render: diagnostic_block_renderer(diagnostic, None, true, true),
10560 disposition: BlockDisposition::Below,
10561 priority: 0,
10562 }
10563 }),
10564 cx,
10565 )
10566 .into_iter()
10567 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10568 .collect();
10569
10570 Some(ActiveDiagnosticGroup {
10571 primary_range,
10572 primary_message,
10573 group_id,
10574 blocks,
10575 is_valid: true,
10576 })
10577 });
10578 self.active_diagnostics.is_some()
10579 }
10580
10581 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10582 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10583 self.display_map.update(cx, |display_map, cx| {
10584 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10585 });
10586 cx.notify();
10587 }
10588 }
10589
10590 pub fn set_selections_from_remote(
10591 &mut self,
10592 selections: Vec<Selection<Anchor>>,
10593 pending_selection: Option<Selection<Anchor>>,
10594 cx: &mut ViewContext<Self>,
10595 ) {
10596 let old_cursor_position = self.selections.newest_anchor().head();
10597 self.selections.change_with(cx, |s| {
10598 s.select_anchors(selections);
10599 if let Some(pending_selection) = pending_selection {
10600 s.set_pending(pending_selection, SelectMode::Character);
10601 } else {
10602 s.clear_pending();
10603 }
10604 });
10605 self.selections_did_change(false, &old_cursor_position, true, cx);
10606 }
10607
10608 fn push_to_selection_history(&mut self) {
10609 self.selection_history.push(SelectionHistoryEntry {
10610 selections: self.selections.disjoint_anchors(),
10611 select_next_state: self.select_next_state.clone(),
10612 select_prev_state: self.select_prev_state.clone(),
10613 add_selections_state: self.add_selections_state.clone(),
10614 });
10615 }
10616
10617 pub fn transact(
10618 &mut self,
10619 cx: &mut ViewContext<Self>,
10620 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10621 ) -> Option<TransactionId> {
10622 self.start_transaction_at(Instant::now(), cx);
10623 update(self, cx);
10624 self.end_transaction_at(Instant::now(), cx)
10625 }
10626
10627 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10628 self.end_selection(cx);
10629 if let Some(tx_id) = self
10630 .buffer
10631 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10632 {
10633 self.selection_history
10634 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10635 cx.emit(EditorEvent::TransactionBegun {
10636 transaction_id: tx_id,
10637 })
10638 }
10639 }
10640
10641 fn end_transaction_at(
10642 &mut self,
10643 now: Instant,
10644 cx: &mut ViewContext<Self>,
10645 ) -> Option<TransactionId> {
10646 if let Some(transaction_id) = self
10647 .buffer
10648 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10649 {
10650 if let Some((_, end_selections)) =
10651 self.selection_history.transaction_mut(transaction_id)
10652 {
10653 *end_selections = Some(self.selections.disjoint_anchors());
10654 } else {
10655 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10656 }
10657
10658 cx.emit(EditorEvent::Edited { transaction_id });
10659 Some(transaction_id)
10660 } else {
10661 None
10662 }
10663 }
10664
10665 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10666 let selection = self.selections.newest::<Point>(cx);
10667
10668 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10669 let range = if selection.is_empty() {
10670 let point = selection.head().to_display_point(&display_map);
10671 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10672 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10673 .to_point(&display_map);
10674 start..end
10675 } else {
10676 selection.range()
10677 };
10678 if display_map.folds_in_range(range).next().is_some() {
10679 self.unfold_lines(&Default::default(), cx)
10680 } else {
10681 self.fold(&Default::default(), cx)
10682 }
10683 }
10684
10685 pub fn toggle_fold_recursive(
10686 &mut self,
10687 _: &actions::ToggleFoldRecursive,
10688 cx: &mut ViewContext<Self>,
10689 ) {
10690 let selection = self.selections.newest::<Point>(cx);
10691
10692 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10693 let range = if selection.is_empty() {
10694 let point = selection.head().to_display_point(&display_map);
10695 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10696 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10697 .to_point(&display_map);
10698 start..end
10699 } else {
10700 selection.range()
10701 };
10702 if display_map.folds_in_range(range).next().is_some() {
10703 self.unfold_recursive(&Default::default(), cx)
10704 } else {
10705 self.fold_recursive(&Default::default(), cx)
10706 }
10707 }
10708
10709 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10710 let mut fold_ranges = Vec::new();
10711 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10712 let selections = self.selections.all_adjusted(cx);
10713
10714 for selection in selections {
10715 let range = selection.range().sorted();
10716 let buffer_start_row = range.start.row;
10717
10718 if range.start.row != range.end.row {
10719 let mut found = false;
10720 let mut row = range.start.row;
10721 while row <= range.end.row {
10722 if let Some((foldable_range, fold_text)) =
10723 { display_map.foldable_range(MultiBufferRow(row)) }
10724 {
10725 found = true;
10726 row = foldable_range.end.row + 1;
10727 fold_ranges.push((foldable_range, fold_text));
10728 } else {
10729 row += 1
10730 }
10731 }
10732 if found {
10733 continue;
10734 }
10735 }
10736
10737 for row in (0..=range.start.row).rev() {
10738 if let Some((foldable_range, fold_text)) =
10739 display_map.foldable_range(MultiBufferRow(row))
10740 {
10741 if foldable_range.end.row >= buffer_start_row {
10742 fold_ranges.push((foldable_range, fold_text));
10743 if row <= range.start.row {
10744 break;
10745 }
10746 }
10747 }
10748 }
10749 }
10750
10751 self.fold_ranges(fold_ranges, true, cx);
10752 }
10753
10754 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10755 let mut fold_ranges = Vec::new();
10756 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10757
10758 for row in 0..display_map.max_buffer_row().0 {
10759 if let Some((foldable_range, fold_text)) =
10760 display_map.foldable_range(MultiBufferRow(row))
10761 {
10762 fold_ranges.push((foldable_range, fold_text));
10763 }
10764 }
10765
10766 self.fold_ranges(fold_ranges, true, cx);
10767 }
10768
10769 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10770 let mut fold_ranges = Vec::new();
10771 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10772 let selections = self.selections.all_adjusted(cx);
10773
10774 for selection in selections {
10775 let range = selection.range().sorted();
10776 let buffer_start_row = range.start.row;
10777
10778 if range.start.row != range.end.row {
10779 let mut found = false;
10780 for row in range.start.row..=range.end.row {
10781 if let Some((foldable_range, fold_text)) =
10782 { display_map.foldable_range(MultiBufferRow(row)) }
10783 {
10784 found = true;
10785 fold_ranges.push((foldable_range, fold_text));
10786 }
10787 }
10788 if found {
10789 continue;
10790 }
10791 }
10792
10793 for row in (0..=range.start.row).rev() {
10794 if let Some((foldable_range, fold_text)) =
10795 display_map.foldable_range(MultiBufferRow(row))
10796 {
10797 if foldable_range.end.row >= buffer_start_row {
10798 fold_ranges.push((foldable_range, fold_text));
10799 } else {
10800 break;
10801 }
10802 }
10803 }
10804 }
10805
10806 self.fold_ranges(fold_ranges, true, cx);
10807 }
10808
10809 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10810 let buffer_row = fold_at.buffer_row;
10811 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10812
10813 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
10814 let autoscroll = self
10815 .selections
10816 .all::<Point>(cx)
10817 .iter()
10818 .any(|selection| fold_range.overlaps(&selection.range()));
10819
10820 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
10821 }
10822 }
10823
10824 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10825 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10826 let buffer = &display_map.buffer_snapshot;
10827 let selections = self.selections.all::<Point>(cx);
10828 let ranges = selections
10829 .iter()
10830 .map(|s| {
10831 let range = s.display_range(&display_map).sorted();
10832 let mut start = range.start.to_point(&display_map);
10833 let mut end = range.end.to_point(&display_map);
10834 start.column = 0;
10835 end.column = buffer.line_len(MultiBufferRow(end.row));
10836 start..end
10837 })
10838 .collect::<Vec<_>>();
10839
10840 self.unfold_ranges(ranges, true, true, cx);
10841 }
10842
10843 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10844 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10845 let selections = self.selections.all::<Point>(cx);
10846 let ranges = selections
10847 .iter()
10848 .map(|s| {
10849 let mut range = s.display_range(&display_map).sorted();
10850 *range.start.column_mut() = 0;
10851 *range.end.column_mut() = display_map.line_len(range.end.row());
10852 let start = range.start.to_point(&display_map);
10853 let end = range.end.to_point(&display_map);
10854 start..end
10855 })
10856 .collect::<Vec<_>>();
10857
10858 self.unfold_ranges(ranges, true, true, cx);
10859 }
10860
10861 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10862 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10863
10864 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10865 ..Point::new(
10866 unfold_at.buffer_row.0,
10867 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10868 );
10869
10870 let autoscroll = self
10871 .selections
10872 .all::<Point>(cx)
10873 .iter()
10874 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10875
10876 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
10877 }
10878
10879 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10880 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10881 self.unfold_ranges(
10882 [Point::zero()..display_map.max_point().to_point(&display_map)],
10883 true,
10884 true,
10885 cx,
10886 );
10887 }
10888
10889 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10890 let selections = self.selections.all::<Point>(cx);
10891 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10892 let line_mode = self.selections.line_mode;
10893 let ranges = selections.into_iter().map(|s| {
10894 if line_mode {
10895 let start = Point::new(s.start.row, 0);
10896 let end = Point::new(
10897 s.end.row,
10898 display_map
10899 .buffer_snapshot
10900 .line_len(MultiBufferRow(s.end.row)),
10901 );
10902 (start..end, display_map.fold_placeholder.clone())
10903 } else {
10904 (s.start..s.end, display_map.fold_placeholder.clone())
10905 }
10906 });
10907 self.fold_ranges(ranges, true, cx);
10908 }
10909
10910 pub fn fold_ranges<T: ToOffset + Clone>(
10911 &mut self,
10912 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
10913 auto_scroll: bool,
10914 cx: &mut ViewContext<Self>,
10915 ) {
10916 let mut fold_ranges = Vec::new();
10917 let mut buffers_affected = HashMap::default();
10918 let multi_buffer = self.buffer().read(cx);
10919 for (fold_range, fold_text) in ranges {
10920 if let Some((_, buffer, _)) =
10921 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
10922 {
10923 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10924 };
10925 fold_ranges.push((fold_range, fold_text));
10926 }
10927
10928 let mut ranges = fold_ranges.into_iter().peekable();
10929 if ranges.peek().is_some() {
10930 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
10931
10932 if auto_scroll {
10933 self.request_autoscroll(Autoscroll::fit(), cx);
10934 }
10935
10936 for buffer in buffers_affected.into_values() {
10937 self.sync_expanded_diff_hunks(buffer, cx);
10938 }
10939
10940 cx.notify();
10941
10942 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10943 // Clear diagnostics block when folding a range that contains it.
10944 let snapshot = self.snapshot(cx);
10945 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10946 drop(snapshot);
10947 self.active_diagnostics = Some(active_diagnostics);
10948 self.dismiss_diagnostics(cx);
10949 } else {
10950 self.active_diagnostics = Some(active_diagnostics);
10951 }
10952 }
10953
10954 self.scrollbar_marker_state.dirty = true;
10955 }
10956 }
10957
10958 pub fn unfold_ranges<T: ToOffset + Clone>(
10959 &mut self,
10960 ranges: impl IntoIterator<Item = Range<T>>,
10961 inclusive: bool,
10962 auto_scroll: bool,
10963 cx: &mut ViewContext<Self>,
10964 ) {
10965 let mut unfold_ranges = Vec::new();
10966 let mut buffers_affected = HashMap::default();
10967 let multi_buffer = self.buffer().read(cx);
10968 for range in ranges {
10969 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10970 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10971 };
10972 unfold_ranges.push(range);
10973 }
10974
10975 let mut ranges = unfold_ranges.into_iter().peekable();
10976 if ranges.peek().is_some() {
10977 self.display_map
10978 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
10979 if auto_scroll {
10980 self.request_autoscroll(Autoscroll::fit(), cx);
10981 }
10982
10983 for buffer in buffers_affected.into_values() {
10984 self.sync_expanded_diff_hunks(buffer, cx);
10985 }
10986
10987 cx.notify();
10988 self.scrollbar_marker_state.dirty = true;
10989 self.active_indent_guides_state.dirty = true;
10990 }
10991 }
10992
10993 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
10994 self.display_map.read(cx).fold_placeholder.clone()
10995 }
10996
10997 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10998 if hovered != self.gutter_hovered {
10999 self.gutter_hovered = hovered;
11000 cx.notify();
11001 }
11002 }
11003
11004 pub fn insert_blocks(
11005 &mut self,
11006 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11007 autoscroll: Option<Autoscroll>,
11008 cx: &mut ViewContext<Self>,
11009 ) -> Vec<CustomBlockId> {
11010 let blocks = self
11011 .display_map
11012 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11013 if let Some(autoscroll) = autoscroll {
11014 self.request_autoscroll(autoscroll, cx);
11015 }
11016 cx.notify();
11017 blocks
11018 }
11019
11020 pub fn resize_blocks(
11021 &mut self,
11022 heights: HashMap<CustomBlockId, u32>,
11023 autoscroll: Option<Autoscroll>,
11024 cx: &mut ViewContext<Self>,
11025 ) {
11026 self.display_map
11027 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11028 if let Some(autoscroll) = autoscroll {
11029 self.request_autoscroll(autoscroll, cx);
11030 }
11031 cx.notify();
11032 }
11033
11034 pub fn replace_blocks(
11035 &mut self,
11036 renderers: HashMap<CustomBlockId, RenderBlock>,
11037 autoscroll: Option<Autoscroll>,
11038 cx: &mut ViewContext<Self>,
11039 ) {
11040 self.display_map
11041 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11042 if let Some(autoscroll) = autoscroll {
11043 self.request_autoscroll(autoscroll, cx);
11044 }
11045 cx.notify();
11046 }
11047
11048 pub fn remove_blocks(
11049 &mut self,
11050 block_ids: HashSet<CustomBlockId>,
11051 autoscroll: Option<Autoscroll>,
11052 cx: &mut ViewContext<Self>,
11053 ) {
11054 self.display_map.update(cx, |display_map, cx| {
11055 display_map.remove_blocks(block_ids, cx)
11056 });
11057 if let Some(autoscroll) = autoscroll {
11058 self.request_autoscroll(autoscroll, cx);
11059 }
11060 cx.notify();
11061 }
11062
11063 pub fn row_for_block(
11064 &self,
11065 block_id: CustomBlockId,
11066 cx: &mut ViewContext<Self>,
11067 ) -> Option<DisplayRow> {
11068 self.display_map
11069 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11070 }
11071
11072 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11073 self.focused_block = Some(focused_block);
11074 }
11075
11076 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11077 self.focused_block.take()
11078 }
11079
11080 pub fn insert_creases(
11081 &mut self,
11082 creases: impl IntoIterator<Item = Crease>,
11083 cx: &mut ViewContext<Self>,
11084 ) -> Vec<CreaseId> {
11085 self.display_map
11086 .update(cx, |map, cx| map.insert_creases(creases, cx))
11087 }
11088
11089 pub fn remove_creases(
11090 &mut self,
11091 ids: impl IntoIterator<Item = CreaseId>,
11092 cx: &mut ViewContext<Self>,
11093 ) {
11094 self.display_map
11095 .update(cx, |map, cx| map.remove_creases(ids, cx));
11096 }
11097
11098 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11099 self.display_map
11100 .update(cx, |map, cx| map.snapshot(cx))
11101 .longest_row()
11102 }
11103
11104 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11105 self.display_map
11106 .update(cx, |map, cx| map.snapshot(cx))
11107 .max_point()
11108 }
11109
11110 pub fn text(&self, cx: &AppContext) -> String {
11111 self.buffer.read(cx).read(cx).text()
11112 }
11113
11114 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11115 let text = self.text(cx);
11116 let text = text.trim();
11117
11118 if text.is_empty() {
11119 return None;
11120 }
11121
11122 Some(text.to_string())
11123 }
11124
11125 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11126 self.transact(cx, |this, cx| {
11127 this.buffer
11128 .read(cx)
11129 .as_singleton()
11130 .expect("you can only call set_text on editors for singleton buffers")
11131 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11132 });
11133 }
11134
11135 pub fn display_text(&self, cx: &mut AppContext) -> String {
11136 self.display_map
11137 .update(cx, |map, cx| map.snapshot(cx))
11138 .text()
11139 }
11140
11141 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11142 let mut wrap_guides = smallvec::smallvec![];
11143
11144 if self.show_wrap_guides == Some(false) {
11145 return wrap_guides;
11146 }
11147
11148 let settings = self.buffer.read(cx).settings_at(0, cx);
11149 if settings.show_wrap_guides {
11150 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11151 wrap_guides.push((soft_wrap as usize, true));
11152 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11153 wrap_guides.push((soft_wrap as usize, true));
11154 }
11155 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11156 }
11157
11158 wrap_guides
11159 }
11160
11161 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11162 let settings = self.buffer.read(cx).settings_at(0, cx);
11163 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11164 match mode {
11165 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11166 SoftWrap::None
11167 }
11168 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11169 language_settings::SoftWrap::PreferredLineLength => {
11170 SoftWrap::Column(settings.preferred_line_length)
11171 }
11172 language_settings::SoftWrap::Bounded => {
11173 SoftWrap::Bounded(settings.preferred_line_length)
11174 }
11175 }
11176 }
11177
11178 pub fn set_soft_wrap_mode(
11179 &mut self,
11180 mode: language_settings::SoftWrap,
11181 cx: &mut ViewContext<Self>,
11182 ) {
11183 self.soft_wrap_mode_override = Some(mode);
11184 cx.notify();
11185 }
11186
11187 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11188 let rem_size = cx.rem_size();
11189 self.display_map.update(cx, |map, cx| {
11190 map.set_font(
11191 style.text.font(),
11192 style.text.font_size.to_pixels(rem_size),
11193 cx,
11194 )
11195 });
11196 self.style = Some(style);
11197 }
11198
11199 pub fn style(&self) -> Option<&EditorStyle> {
11200 self.style.as_ref()
11201 }
11202
11203 // Called by the element. This method is not designed to be called outside of the editor
11204 // element's layout code because it does not notify when rewrapping is computed synchronously.
11205 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11206 self.display_map
11207 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11208 }
11209
11210 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11211 if self.soft_wrap_mode_override.is_some() {
11212 self.soft_wrap_mode_override.take();
11213 } else {
11214 let soft_wrap = match self.soft_wrap_mode(cx) {
11215 SoftWrap::GitDiff => return,
11216 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11217 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11218 language_settings::SoftWrap::None
11219 }
11220 };
11221 self.soft_wrap_mode_override = Some(soft_wrap);
11222 }
11223 cx.notify();
11224 }
11225
11226 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11227 let Some(workspace) = self.workspace() else {
11228 return;
11229 };
11230 let fs = workspace.read(cx).app_state().fs.clone();
11231 let current_show = TabBarSettings::get_global(cx).show;
11232 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11233 setting.show = Some(!current_show);
11234 });
11235 }
11236
11237 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11238 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11239 self.buffer
11240 .read(cx)
11241 .settings_at(0, cx)
11242 .indent_guides
11243 .enabled
11244 });
11245 self.show_indent_guides = Some(!currently_enabled);
11246 cx.notify();
11247 }
11248
11249 fn should_show_indent_guides(&self) -> Option<bool> {
11250 self.show_indent_guides
11251 }
11252
11253 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11254 let mut editor_settings = EditorSettings::get_global(cx).clone();
11255 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11256 EditorSettings::override_global(editor_settings, cx);
11257 }
11258
11259 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11260 self.use_relative_line_numbers
11261 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11262 }
11263
11264 pub fn toggle_relative_line_numbers(
11265 &mut self,
11266 _: &ToggleRelativeLineNumbers,
11267 cx: &mut ViewContext<Self>,
11268 ) {
11269 let is_relative = self.should_use_relative_line_numbers(cx);
11270 self.set_relative_line_number(Some(!is_relative), cx)
11271 }
11272
11273 pub fn set_relative_line_number(
11274 &mut self,
11275 is_relative: Option<bool>,
11276 cx: &mut ViewContext<Self>,
11277 ) {
11278 self.use_relative_line_numbers = is_relative;
11279 cx.notify();
11280 }
11281
11282 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11283 self.show_gutter = show_gutter;
11284 cx.notify();
11285 }
11286
11287 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11288 self.show_line_numbers = Some(show_line_numbers);
11289 cx.notify();
11290 }
11291
11292 pub fn set_show_git_diff_gutter(
11293 &mut self,
11294 show_git_diff_gutter: bool,
11295 cx: &mut ViewContext<Self>,
11296 ) {
11297 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11298 cx.notify();
11299 }
11300
11301 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11302 self.show_code_actions = Some(show_code_actions);
11303 cx.notify();
11304 }
11305
11306 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11307 self.show_runnables = Some(show_runnables);
11308 cx.notify();
11309 }
11310
11311 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11312 if self.display_map.read(cx).masked != masked {
11313 self.display_map.update(cx, |map, _| map.masked = masked);
11314 }
11315 cx.notify()
11316 }
11317
11318 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11319 self.show_wrap_guides = Some(show_wrap_guides);
11320 cx.notify();
11321 }
11322
11323 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11324 self.show_indent_guides = Some(show_indent_guides);
11325 cx.notify();
11326 }
11327
11328 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11329 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11330 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11331 if let Some(dir) = file.abs_path(cx).parent() {
11332 return Some(dir.to_owned());
11333 }
11334 }
11335
11336 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11337 return Some(project_path.path.to_path_buf());
11338 }
11339 }
11340
11341 None
11342 }
11343
11344 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11345 self.active_excerpt(cx)?
11346 .1
11347 .read(cx)
11348 .file()
11349 .and_then(|f| f.as_local())
11350 }
11351
11352 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11353 if let Some(target) = self.target_file(cx) {
11354 cx.reveal_path(&target.abs_path(cx));
11355 }
11356 }
11357
11358 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11359 if let Some(file) = self.target_file(cx) {
11360 if let Some(path) = file.abs_path(cx).to_str() {
11361 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11362 }
11363 }
11364 }
11365
11366 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11367 if let Some(file) = self.target_file(cx) {
11368 if let Some(path) = file.path().to_str() {
11369 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11370 }
11371 }
11372 }
11373
11374 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11375 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11376
11377 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11378 self.start_git_blame(true, cx);
11379 }
11380
11381 cx.notify();
11382 }
11383
11384 pub fn toggle_git_blame_inline(
11385 &mut self,
11386 _: &ToggleGitBlameInline,
11387 cx: &mut ViewContext<Self>,
11388 ) {
11389 self.toggle_git_blame_inline_internal(true, cx);
11390 cx.notify();
11391 }
11392
11393 pub fn git_blame_inline_enabled(&self) -> bool {
11394 self.git_blame_inline_enabled
11395 }
11396
11397 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11398 self.show_selection_menu = self
11399 .show_selection_menu
11400 .map(|show_selections_menu| !show_selections_menu)
11401 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11402
11403 cx.notify();
11404 }
11405
11406 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11407 self.show_selection_menu
11408 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11409 }
11410
11411 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11412 if let Some(project) = self.project.as_ref() {
11413 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11414 return;
11415 };
11416
11417 if buffer.read(cx).file().is_none() {
11418 return;
11419 }
11420
11421 let focused = self.focus_handle(cx).contains_focused(cx);
11422
11423 let project = project.clone();
11424 let blame =
11425 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11426 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11427 self.blame = Some(blame);
11428 }
11429 }
11430
11431 fn toggle_git_blame_inline_internal(
11432 &mut self,
11433 user_triggered: bool,
11434 cx: &mut ViewContext<Self>,
11435 ) {
11436 if self.git_blame_inline_enabled {
11437 self.git_blame_inline_enabled = false;
11438 self.show_git_blame_inline = false;
11439 self.show_git_blame_inline_delay_task.take();
11440 } else {
11441 self.git_blame_inline_enabled = true;
11442 self.start_git_blame_inline(user_triggered, cx);
11443 }
11444
11445 cx.notify();
11446 }
11447
11448 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11449 self.start_git_blame(user_triggered, cx);
11450
11451 if ProjectSettings::get_global(cx)
11452 .git
11453 .inline_blame_delay()
11454 .is_some()
11455 {
11456 self.start_inline_blame_timer(cx);
11457 } else {
11458 self.show_git_blame_inline = true
11459 }
11460 }
11461
11462 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11463 self.blame.as_ref()
11464 }
11465
11466 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11467 self.show_git_blame_gutter && self.has_blame_entries(cx)
11468 }
11469
11470 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11471 self.show_git_blame_inline
11472 && self.focus_handle.is_focused(cx)
11473 && !self.newest_selection_head_on_empty_line(cx)
11474 && self.has_blame_entries(cx)
11475 }
11476
11477 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11478 self.blame()
11479 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11480 }
11481
11482 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11483 let cursor_anchor = self.selections.newest_anchor().head();
11484
11485 let snapshot = self.buffer.read(cx).snapshot(cx);
11486 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11487
11488 snapshot.line_len(buffer_row) == 0
11489 }
11490
11491 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
11492 let (path, selection, repo) = maybe!({
11493 let project_handle = self.project.as_ref()?.clone();
11494 let project = project_handle.read(cx);
11495
11496 let selection = self.selections.newest::<Point>(cx);
11497 let selection_range = selection.range();
11498
11499 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11500 (buffer, selection_range.start.row..selection_range.end.row)
11501 } else {
11502 let buffer_ranges = self
11503 .buffer()
11504 .read(cx)
11505 .range_to_buffer_ranges(selection_range, cx);
11506
11507 let (buffer, range, _) = if selection.reversed {
11508 buffer_ranges.first()
11509 } else {
11510 buffer_ranges.last()
11511 }?;
11512
11513 let snapshot = buffer.read(cx).snapshot();
11514 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11515 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11516 (buffer.clone(), selection)
11517 };
11518
11519 let path = buffer
11520 .read(cx)
11521 .file()?
11522 .as_local()?
11523 .path()
11524 .to_str()?
11525 .to_string();
11526 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
11527 Some((path, selection, repo))
11528 })
11529 .ok_or_else(|| anyhow!("unable to open git repository"))?;
11530
11531 const REMOTE_NAME: &str = "origin";
11532 let origin_url = repo
11533 .remote_url(REMOTE_NAME)
11534 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
11535 let sha = repo
11536 .head_sha()
11537 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
11538
11539 let (provider, remote) =
11540 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
11541 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
11542
11543 Ok(provider.build_permalink(
11544 remote,
11545 BuildPermalinkParams {
11546 sha: &sha,
11547 path: &path,
11548 selection: Some(selection),
11549 },
11550 ))
11551 }
11552
11553 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11554 let permalink = self.get_permalink_to_line(cx);
11555
11556 match permalink {
11557 Ok(permalink) => {
11558 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11559 }
11560 Err(err) => {
11561 let message = format!("Failed to copy permalink: {err}");
11562
11563 Err::<(), anyhow::Error>(err).log_err();
11564
11565 if let Some(workspace) = self.workspace() {
11566 workspace.update(cx, |workspace, cx| {
11567 struct CopyPermalinkToLine;
11568
11569 workspace.show_toast(
11570 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
11571 cx,
11572 )
11573 })
11574 }
11575 }
11576 }
11577 }
11578
11579 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11580 if let Some(file) = self.target_file(cx) {
11581 if let Some(path) = file.path().to_str() {
11582 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11583 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11584 }
11585 }
11586 }
11587
11588 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11589 let permalink = self.get_permalink_to_line(cx);
11590
11591 match permalink {
11592 Ok(permalink) => {
11593 cx.open_url(permalink.as_ref());
11594 }
11595 Err(err) => {
11596 let message = format!("Failed to open permalink: {err}");
11597
11598 Err::<(), anyhow::Error>(err).log_err();
11599
11600 if let Some(workspace) = self.workspace() {
11601 workspace.update(cx, |workspace, cx| {
11602 struct OpenPermalinkToLine;
11603
11604 workspace.show_toast(
11605 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
11606 cx,
11607 )
11608 })
11609 }
11610 }
11611 }
11612 }
11613
11614 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11615 /// last highlight added will be used.
11616 ///
11617 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11618 pub fn highlight_rows<T: 'static>(
11619 &mut self,
11620 range: Range<Anchor>,
11621 color: Hsla,
11622 should_autoscroll: bool,
11623 cx: &mut ViewContext<Self>,
11624 ) {
11625 let snapshot = self.buffer().read(cx).snapshot(cx);
11626 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11627 let ix = row_highlights.binary_search_by(|highlight| {
11628 Ordering::Equal
11629 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11630 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11631 });
11632
11633 if let Err(mut ix) = ix {
11634 let index = post_inc(&mut self.highlight_order);
11635
11636 // If this range intersects with the preceding highlight, then merge it with
11637 // the preceding highlight. Otherwise insert a new highlight.
11638 let mut merged = false;
11639 if ix > 0 {
11640 let prev_highlight = &mut row_highlights[ix - 1];
11641 if prev_highlight
11642 .range
11643 .end
11644 .cmp(&range.start, &snapshot)
11645 .is_ge()
11646 {
11647 ix -= 1;
11648 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11649 prev_highlight.range.end = range.end;
11650 }
11651 merged = true;
11652 prev_highlight.index = index;
11653 prev_highlight.color = color;
11654 prev_highlight.should_autoscroll = should_autoscroll;
11655 }
11656 }
11657
11658 if !merged {
11659 row_highlights.insert(
11660 ix,
11661 RowHighlight {
11662 range: range.clone(),
11663 index,
11664 color,
11665 should_autoscroll,
11666 },
11667 );
11668 }
11669
11670 // If any of the following highlights intersect with this one, merge them.
11671 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11672 let highlight = &row_highlights[ix];
11673 if next_highlight
11674 .range
11675 .start
11676 .cmp(&highlight.range.end, &snapshot)
11677 .is_le()
11678 {
11679 if next_highlight
11680 .range
11681 .end
11682 .cmp(&highlight.range.end, &snapshot)
11683 .is_gt()
11684 {
11685 row_highlights[ix].range.end = next_highlight.range.end;
11686 }
11687 row_highlights.remove(ix + 1);
11688 } else {
11689 break;
11690 }
11691 }
11692 }
11693 }
11694
11695 /// Remove any highlighted row ranges of the given type that intersect the
11696 /// given ranges.
11697 pub fn remove_highlighted_rows<T: 'static>(
11698 &mut self,
11699 ranges_to_remove: Vec<Range<Anchor>>,
11700 cx: &mut ViewContext<Self>,
11701 ) {
11702 let snapshot = self.buffer().read(cx).snapshot(cx);
11703 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11704 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11705 row_highlights.retain(|highlight| {
11706 while let Some(range_to_remove) = ranges_to_remove.peek() {
11707 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11708 Ordering::Less | Ordering::Equal => {
11709 ranges_to_remove.next();
11710 }
11711 Ordering::Greater => {
11712 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11713 Ordering::Less | Ordering::Equal => {
11714 return false;
11715 }
11716 Ordering::Greater => break,
11717 }
11718 }
11719 }
11720 }
11721
11722 true
11723 })
11724 }
11725
11726 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11727 pub fn clear_row_highlights<T: 'static>(&mut self) {
11728 self.highlighted_rows.remove(&TypeId::of::<T>());
11729 }
11730
11731 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11732 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11733 self.highlighted_rows
11734 .get(&TypeId::of::<T>())
11735 .map_or(&[] as &[_], |vec| vec.as_slice())
11736 .iter()
11737 .map(|highlight| (highlight.range.clone(), highlight.color))
11738 }
11739
11740 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11741 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11742 /// Allows to ignore certain kinds of highlights.
11743 pub fn highlighted_display_rows(
11744 &mut self,
11745 cx: &mut WindowContext,
11746 ) -> BTreeMap<DisplayRow, Hsla> {
11747 let snapshot = self.snapshot(cx);
11748 let mut used_highlight_orders = HashMap::default();
11749 self.highlighted_rows
11750 .iter()
11751 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11752 .fold(
11753 BTreeMap::<DisplayRow, Hsla>::new(),
11754 |mut unique_rows, highlight| {
11755 let start = highlight.range.start.to_display_point(&snapshot);
11756 let end = highlight.range.end.to_display_point(&snapshot);
11757 let start_row = start.row().0;
11758 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11759 && end.column() == 0
11760 {
11761 end.row().0.saturating_sub(1)
11762 } else {
11763 end.row().0
11764 };
11765 for row in start_row..=end_row {
11766 let used_index =
11767 used_highlight_orders.entry(row).or_insert(highlight.index);
11768 if highlight.index >= *used_index {
11769 *used_index = highlight.index;
11770 unique_rows.insert(DisplayRow(row), highlight.color);
11771 }
11772 }
11773 unique_rows
11774 },
11775 )
11776 }
11777
11778 pub fn highlighted_display_row_for_autoscroll(
11779 &self,
11780 snapshot: &DisplaySnapshot,
11781 ) -> Option<DisplayRow> {
11782 self.highlighted_rows
11783 .values()
11784 .flat_map(|highlighted_rows| highlighted_rows.iter())
11785 .filter_map(|highlight| {
11786 if highlight.should_autoscroll {
11787 Some(highlight.range.start.to_display_point(snapshot).row())
11788 } else {
11789 None
11790 }
11791 })
11792 .min()
11793 }
11794
11795 pub fn set_search_within_ranges(
11796 &mut self,
11797 ranges: &[Range<Anchor>],
11798 cx: &mut ViewContext<Self>,
11799 ) {
11800 self.highlight_background::<SearchWithinRange>(
11801 ranges,
11802 |colors| colors.editor_document_highlight_read_background,
11803 cx,
11804 )
11805 }
11806
11807 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11808 self.breadcrumb_header = Some(new_header);
11809 }
11810
11811 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11812 self.clear_background_highlights::<SearchWithinRange>(cx);
11813 }
11814
11815 pub fn highlight_background<T: 'static>(
11816 &mut self,
11817 ranges: &[Range<Anchor>],
11818 color_fetcher: fn(&ThemeColors) -> Hsla,
11819 cx: &mut ViewContext<Self>,
11820 ) {
11821 self.background_highlights
11822 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11823 self.scrollbar_marker_state.dirty = true;
11824 cx.notify();
11825 }
11826
11827 pub fn clear_background_highlights<T: 'static>(
11828 &mut self,
11829 cx: &mut ViewContext<Self>,
11830 ) -> Option<BackgroundHighlight> {
11831 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11832 if !text_highlights.1.is_empty() {
11833 self.scrollbar_marker_state.dirty = true;
11834 cx.notify();
11835 }
11836 Some(text_highlights)
11837 }
11838
11839 pub fn highlight_gutter<T: 'static>(
11840 &mut self,
11841 ranges: &[Range<Anchor>],
11842 color_fetcher: fn(&AppContext) -> Hsla,
11843 cx: &mut ViewContext<Self>,
11844 ) {
11845 self.gutter_highlights
11846 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11847 cx.notify();
11848 }
11849
11850 pub fn clear_gutter_highlights<T: 'static>(
11851 &mut self,
11852 cx: &mut ViewContext<Self>,
11853 ) -> Option<GutterHighlight> {
11854 cx.notify();
11855 self.gutter_highlights.remove(&TypeId::of::<T>())
11856 }
11857
11858 #[cfg(feature = "test-support")]
11859 pub fn all_text_background_highlights(
11860 &mut self,
11861 cx: &mut ViewContext<Self>,
11862 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11863 let snapshot = self.snapshot(cx);
11864 let buffer = &snapshot.buffer_snapshot;
11865 let start = buffer.anchor_before(0);
11866 let end = buffer.anchor_after(buffer.len());
11867 let theme = cx.theme().colors();
11868 self.background_highlights_in_range(start..end, &snapshot, theme)
11869 }
11870
11871 #[cfg(feature = "test-support")]
11872 pub fn search_background_highlights(
11873 &mut self,
11874 cx: &mut ViewContext<Self>,
11875 ) -> Vec<Range<Point>> {
11876 let snapshot = self.buffer().read(cx).snapshot(cx);
11877
11878 let highlights = self
11879 .background_highlights
11880 .get(&TypeId::of::<items::BufferSearchHighlights>());
11881
11882 if let Some((_color, ranges)) = highlights {
11883 ranges
11884 .iter()
11885 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11886 .collect_vec()
11887 } else {
11888 vec![]
11889 }
11890 }
11891
11892 fn document_highlights_for_position<'a>(
11893 &'a self,
11894 position: Anchor,
11895 buffer: &'a MultiBufferSnapshot,
11896 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11897 let read_highlights = self
11898 .background_highlights
11899 .get(&TypeId::of::<DocumentHighlightRead>())
11900 .map(|h| &h.1);
11901 let write_highlights = self
11902 .background_highlights
11903 .get(&TypeId::of::<DocumentHighlightWrite>())
11904 .map(|h| &h.1);
11905 let left_position = position.bias_left(buffer);
11906 let right_position = position.bias_right(buffer);
11907 read_highlights
11908 .into_iter()
11909 .chain(write_highlights)
11910 .flat_map(move |ranges| {
11911 let start_ix = match ranges.binary_search_by(|probe| {
11912 let cmp = probe.end.cmp(&left_position, buffer);
11913 if cmp.is_ge() {
11914 Ordering::Greater
11915 } else {
11916 Ordering::Less
11917 }
11918 }) {
11919 Ok(i) | Err(i) => i,
11920 };
11921
11922 ranges[start_ix..]
11923 .iter()
11924 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11925 })
11926 }
11927
11928 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11929 self.background_highlights
11930 .get(&TypeId::of::<T>())
11931 .map_or(false, |(_, highlights)| !highlights.is_empty())
11932 }
11933
11934 pub fn background_highlights_in_range(
11935 &self,
11936 search_range: Range<Anchor>,
11937 display_snapshot: &DisplaySnapshot,
11938 theme: &ThemeColors,
11939 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11940 let mut results = Vec::new();
11941 for (color_fetcher, ranges) in self.background_highlights.values() {
11942 let color = color_fetcher(theme);
11943 let start_ix = match ranges.binary_search_by(|probe| {
11944 let cmp = probe
11945 .end
11946 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11947 if cmp.is_gt() {
11948 Ordering::Greater
11949 } else {
11950 Ordering::Less
11951 }
11952 }) {
11953 Ok(i) | Err(i) => i,
11954 };
11955 for range in &ranges[start_ix..] {
11956 if range
11957 .start
11958 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11959 .is_ge()
11960 {
11961 break;
11962 }
11963
11964 let start = range.start.to_display_point(display_snapshot);
11965 let end = range.end.to_display_point(display_snapshot);
11966 results.push((start..end, color))
11967 }
11968 }
11969 results
11970 }
11971
11972 pub fn background_highlight_row_ranges<T: 'static>(
11973 &self,
11974 search_range: Range<Anchor>,
11975 display_snapshot: &DisplaySnapshot,
11976 count: usize,
11977 ) -> Vec<RangeInclusive<DisplayPoint>> {
11978 let mut results = Vec::new();
11979 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
11980 return vec![];
11981 };
11982
11983 let start_ix = match ranges.binary_search_by(|probe| {
11984 let cmp = probe
11985 .end
11986 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11987 if cmp.is_gt() {
11988 Ordering::Greater
11989 } else {
11990 Ordering::Less
11991 }
11992 }) {
11993 Ok(i) | Err(i) => i,
11994 };
11995 let mut push_region = |start: Option<Point>, end: Option<Point>| {
11996 if let (Some(start_display), Some(end_display)) = (start, end) {
11997 results.push(
11998 start_display.to_display_point(display_snapshot)
11999 ..=end_display.to_display_point(display_snapshot),
12000 );
12001 }
12002 };
12003 let mut start_row: Option<Point> = None;
12004 let mut end_row: Option<Point> = None;
12005 if ranges.len() > count {
12006 return Vec::new();
12007 }
12008 for range in &ranges[start_ix..] {
12009 if range
12010 .start
12011 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12012 .is_ge()
12013 {
12014 break;
12015 }
12016 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12017 if let Some(current_row) = &end_row {
12018 if end.row == current_row.row {
12019 continue;
12020 }
12021 }
12022 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12023 if start_row.is_none() {
12024 assert_eq!(end_row, None);
12025 start_row = Some(start);
12026 end_row = Some(end);
12027 continue;
12028 }
12029 if let Some(current_end) = end_row.as_mut() {
12030 if start.row > current_end.row + 1 {
12031 push_region(start_row, end_row);
12032 start_row = Some(start);
12033 end_row = Some(end);
12034 } else {
12035 // Merge two hunks.
12036 *current_end = end;
12037 }
12038 } else {
12039 unreachable!();
12040 }
12041 }
12042 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12043 push_region(start_row, end_row);
12044 results
12045 }
12046
12047 pub fn gutter_highlights_in_range(
12048 &self,
12049 search_range: Range<Anchor>,
12050 display_snapshot: &DisplaySnapshot,
12051 cx: &AppContext,
12052 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12053 let mut results = Vec::new();
12054 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12055 let color = color_fetcher(cx);
12056 let start_ix = match ranges.binary_search_by(|probe| {
12057 let cmp = probe
12058 .end
12059 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12060 if cmp.is_gt() {
12061 Ordering::Greater
12062 } else {
12063 Ordering::Less
12064 }
12065 }) {
12066 Ok(i) | Err(i) => i,
12067 };
12068 for range in &ranges[start_ix..] {
12069 if range
12070 .start
12071 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12072 .is_ge()
12073 {
12074 break;
12075 }
12076
12077 let start = range.start.to_display_point(display_snapshot);
12078 let end = range.end.to_display_point(display_snapshot);
12079 results.push((start..end, color))
12080 }
12081 }
12082 results
12083 }
12084
12085 /// Get the text ranges corresponding to the redaction query
12086 pub fn redacted_ranges(
12087 &self,
12088 search_range: Range<Anchor>,
12089 display_snapshot: &DisplaySnapshot,
12090 cx: &WindowContext,
12091 ) -> Vec<Range<DisplayPoint>> {
12092 display_snapshot
12093 .buffer_snapshot
12094 .redacted_ranges(search_range, |file| {
12095 if let Some(file) = file {
12096 file.is_private()
12097 && EditorSettings::get(
12098 Some(SettingsLocation {
12099 worktree_id: file.worktree_id(cx),
12100 path: file.path().as_ref(),
12101 }),
12102 cx,
12103 )
12104 .redact_private_values
12105 } else {
12106 false
12107 }
12108 })
12109 .map(|range| {
12110 range.start.to_display_point(display_snapshot)
12111 ..range.end.to_display_point(display_snapshot)
12112 })
12113 .collect()
12114 }
12115
12116 pub fn highlight_text<T: 'static>(
12117 &mut self,
12118 ranges: Vec<Range<Anchor>>,
12119 style: HighlightStyle,
12120 cx: &mut ViewContext<Self>,
12121 ) {
12122 self.display_map.update(cx, |map, _| {
12123 map.highlight_text(TypeId::of::<T>(), ranges, style)
12124 });
12125 cx.notify();
12126 }
12127
12128 pub(crate) fn highlight_inlays<T: 'static>(
12129 &mut self,
12130 highlights: Vec<InlayHighlight>,
12131 style: HighlightStyle,
12132 cx: &mut ViewContext<Self>,
12133 ) {
12134 self.display_map.update(cx, |map, _| {
12135 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12136 });
12137 cx.notify();
12138 }
12139
12140 pub fn text_highlights<'a, T: 'static>(
12141 &'a self,
12142 cx: &'a AppContext,
12143 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12144 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12145 }
12146
12147 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12148 let cleared = self
12149 .display_map
12150 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12151 if cleared {
12152 cx.notify();
12153 }
12154 }
12155
12156 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12157 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12158 && self.focus_handle.is_focused(cx)
12159 }
12160
12161 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12162 self.show_cursor_when_unfocused = is_enabled;
12163 cx.notify();
12164 }
12165
12166 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12167 cx.notify();
12168 }
12169
12170 fn on_buffer_event(
12171 &mut self,
12172 multibuffer: Model<MultiBuffer>,
12173 event: &multi_buffer::Event,
12174 cx: &mut ViewContext<Self>,
12175 ) {
12176 match event {
12177 multi_buffer::Event::Edited {
12178 singleton_buffer_edited,
12179 } => {
12180 self.scrollbar_marker_state.dirty = true;
12181 self.active_indent_guides_state.dirty = true;
12182 self.refresh_active_diagnostics(cx);
12183 self.refresh_code_actions(cx);
12184 if self.has_active_inline_completion(cx) {
12185 self.update_visible_inline_completion(cx);
12186 }
12187 cx.emit(EditorEvent::BufferEdited);
12188 cx.emit(SearchEvent::MatchesInvalidated);
12189 if *singleton_buffer_edited {
12190 if let Some(project) = &self.project {
12191 let project = project.read(cx);
12192 #[allow(clippy::mutable_key_type)]
12193 let languages_affected = multibuffer
12194 .read(cx)
12195 .all_buffers()
12196 .into_iter()
12197 .filter_map(|buffer| {
12198 let buffer = buffer.read(cx);
12199 let language = buffer.language()?;
12200 if project.is_local()
12201 && project.language_servers_for_buffer(buffer, cx).count() == 0
12202 {
12203 None
12204 } else {
12205 Some(language)
12206 }
12207 })
12208 .cloned()
12209 .collect::<HashSet<_>>();
12210 if !languages_affected.is_empty() {
12211 self.refresh_inlay_hints(
12212 InlayHintRefreshReason::BufferEdited(languages_affected),
12213 cx,
12214 );
12215 }
12216 }
12217 }
12218
12219 let Some(project) = &self.project else { return };
12220 let (telemetry, is_via_ssh) = {
12221 let project = project.read(cx);
12222 let telemetry = project.client().telemetry().clone();
12223 let is_via_ssh = project.is_via_ssh();
12224 (telemetry, is_via_ssh)
12225 };
12226 refresh_linked_ranges(self, cx);
12227 telemetry.log_edit_event("editor", is_via_ssh);
12228 }
12229 multi_buffer::Event::ExcerptsAdded {
12230 buffer,
12231 predecessor,
12232 excerpts,
12233 } => {
12234 self.tasks_update_task = Some(self.refresh_runnables(cx));
12235 cx.emit(EditorEvent::ExcerptsAdded {
12236 buffer: buffer.clone(),
12237 predecessor: *predecessor,
12238 excerpts: excerpts.clone(),
12239 });
12240 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12241 }
12242 multi_buffer::Event::ExcerptsRemoved { ids } => {
12243 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12244 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12245 }
12246 multi_buffer::Event::ExcerptsEdited { ids } => {
12247 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12248 }
12249 multi_buffer::Event::ExcerptsExpanded { ids } => {
12250 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12251 }
12252 multi_buffer::Event::Reparsed(buffer_id) => {
12253 self.tasks_update_task = Some(self.refresh_runnables(cx));
12254
12255 cx.emit(EditorEvent::Reparsed(*buffer_id));
12256 }
12257 multi_buffer::Event::LanguageChanged(buffer_id) => {
12258 linked_editing_ranges::refresh_linked_ranges(self, cx);
12259 cx.emit(EditorEvent::Reparsed(*buffer_id));
12260 cx.notify();
12261 }
12262 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12263 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12264 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12265 cx.emit(EditorEvent::TitleChanged)
12266 }
12267 multi_buffer::Event::DiffBaseChanged => {
12268 self.scrollbar_marker_state.dirty = true;
12269 cx.emit(EditorEvent::DiffBaseChanged);
12270 cx.notify();
12271 }
12272 multi_buffer::Event::DiffUpdated { buffer } => {
12273 self.sync_expanded_diff_hunks(buffer.clone(), cx);
12274 cx.notify();
12275 }
12276 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12277 multi_buffer::Event::DiagnosticsUpdated => {
12278 self.refresh_active_diagnostics(cx);
12279 self.scrollbar_marker_state.dirty = true;
12280 cx.notify();
12281 }
12282 _ => {}
12283 };
12284 }
12285
12286 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12287 cx.notify();
12288 }
12289
12290 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12291 self.tasks_update_task = Some(self.refresh_runnables(cx));
12292 self.refresh_inline_completion(true, false, cx);
12293 self.refresh_inlay_hints(
12294 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12295 self.selections.newest_anchor().head(),
12296 &self.buffer.read(cx).snapshot(cx),
12297 cx,
12298 )),
12299 cx,
12300 );
12301
12302 let old_cursor_shape = self.cursor_shape;
12303
12304 {
12305 let editor_settings = EditorSettings::get_global(cx);
12306 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12307 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12308 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12309 }
12310
12311 if old_cursor_shape != self.cursor_shape {
12312 cx.emit(EditorEvent::CursorShapeChanged);
12313 }
12314
12315 let project_settings = ProjectSettings::get_global(cx);
12316 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12317
12318 if self.mode == EditorMode::Full {
12319 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12320 if self.git_blame_inline_enabled != inline_blame_enabled {
12321 self.toggle_git_blame_inline_internal(false, cx);
12322 }
12323 }
12324
12325 cx.notify();
12326 }
12327
12328 pub fn set_searchable(&mut self, searchable: bool) {
12329 self.searchable = searchable;
12330 }
12331
12332 pub fn searchable(&self) -> bool {
12333 self.searchable
12334 }
12335
12336 fn open_proposed_changes_editor(
12337 &mut self,
12338 _: &OpenProposedChangesEditor,
12339 cx: &mut ViewContext<Self>,
12340 ) {
12341 let Some(workspace) = self.workspace() else {
12342 cx.propagate();
12343 return;
12344 };
12345
12346 let buffer = self.buffer.read(cx);
12347 let mut new_selections_by_buffer = HashMap::default();
12348 for selection in self.selections.all::<usize>(cx) {
12349 for (buffer, range, _) in
12350 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12351 {
12352 let mut range = range.to_point(buffer.read(cx));
12353 range.start.column = 0;
12354 range.end.column = buffer.read(cx).line_len(range.end.row);
12355 new_selections_by_buffer
12356 .entry(buffer)
12357 .or_insert(Vec::new())
12358 .push(range)
12359 }
12360 }
12361
12362 let proposed_changes_buffers = new_selections_by_buffer
12363 .into_iter()
12364 .map(|(buffer, ranges)| ProposedChangesBuffer { buffer, ranges })
12365 .collect::<Vec<_>>();
12366 let proposed_changes_editor = cx.new_view(|cx| {
12367 ProposedChangesEditor::new(proposed_changes_buffers, self.project.clone(), cx)
12368 });
12369
12370 cx.window_context().defer(move |cx| {
12371 workspace.update(cx, |workspace, cx| {
12372 workspace.active_pane().update(cx, |pane, cx| {
12373 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12374 });
12375 });
12376 });
12377 }
12378
12379 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12380 self.open_excerpts_common(true, cx)
12381 }
12382
12383 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12384 self.open_excerpts_common(false, cx)
12385 }
12386
12387 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
12388 let buffer = self.buffer.read(cx);
12389 if buffer.is_singleton() {
12390 cx.propagate();
12391 return;
12392 }
12393
12394 let Some(workspace) = self.workspace() else {
12395 cx.propagate();
12396 return;
12397 };
12398
12399 let mut new_selections_by_buffer = HashMap::default();
12400 for selection in self.selections.all::<usize>(cx) {
12401 for (mut buffer_handle, mut range, _) in
12402 buffer.range_to_buffer_ranges(selection.range(), cx)
12403 {
12404 // When editing branch buffers, jump to the corresponding location
12405 // in their base buffer.
12406 let buffer = buffer_handle.read(cx);
12407 if let Some(base_buffer) = buffer.diff_base_buffer() {
12408 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12409 buffer_handle = base_buffer;
12410 }
12411
12412 if selection.reversed {
12413 mem::swap(&mut range.start, &mut range.end);
12414 }
12415 new_selections_by_buffer
12416 .entry(buffer_handle)
12417 .or_insert(Vec::new())
12418 .push(range)
12419 }
12420 }
12421
12422 // We defer the pane interaction because we ourselves are a workspace item
12423 // and activating a new item causes the pane to call a method on us reentrantly,
12424 // which panics if we're on the stack.
12425 cx.window_context().defer(move |cx| {
12426 workspace.update(cx, |workspace, cx| {
12427 let pane = if split {
12428 workspace.adjacent_pane(cx)
12429 } else {
12430 workspace.active_pane().clone()
12431 };
12432
12433 for (buffer, ranges) in new_selections_by_buffer {
12434 let editor =
12435 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
12436 editor.update(cx, |editor, cx| {
12437 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
12438 s.select_ranges(ranges);
12439 });
12440 });
12441 }
12442 })
12443 });
12444 }
12445
12446 fn jump(
12447 &mut self,
12448 path: ProjectPath,
12449 position: Point,
12450 anchor: language::Anchor,
12451 offset_from_top: u32,
12452 cx: &mut ViewContext<Self>,
12453 ) {
12454 let workspace = self.workspace();
12455 cx.spawn(|_, mut cx| async move {
12456 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
12457 let editor = workspace.update(&mut cx, |workspace, cx| {
12458 // Reset the preview item id before opening the new item
12459 workspace.active_pane().update(cx, |pane, cx| {
12460 pane.set_preview_item_id(None, cx);
12461 });
12462 workspace.open_path_preview(path, None, true, true, cx)
12463 })?;
12464 let editor = editor
12465 .await?
12466 .downcast::<Editor>()
12467 .ok_or_else(|| anyhow!("opened item was not an editor"))?
12468 .downgrade();
12469 editor.update(&mut cx, |editor, cx| {
12470 let buffer = editor
12471 .buffer()
12472 .read(cx)
12473 .as_singleton()
12474 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
12475 let buffer = buffer.read(cx);
12476 let cursor = if buffer.can_resolve(&anchor) {
12477 language::ToPoint::to_point(&anchor, buffer)
12478 } else {
12479 buffer.clip_point(position, Bias::Left)
12480 };
12481
12482 let nav_history = editor.nav_history.take();
12483 editor.change_selections(
12484 Some(Autoscroll::top_relative(offset_from_top as usize)),
12485 cx,
12486 |s| {
12487 s.select_ranges([cursor..cursor]);
12488 },
12489 );
12490 editor.nav_history = nav_history;
12491
12492 anyhow::Ok(())
12493 })??;
12494
12495 anyhow::Ok(())
12496 })
12497 .detach_and_log_err(cx);
12498 }
12499
12500 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12501 let snapshot = self.buffer.read(cx).read(cx);
12502 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12503 Some(
12504 ranges
12505 .iter()
12506 .map(move |range| {
12507 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12508 })
12509 .collect(),
12510 )
12511 }
12512
12513 fn selection_replacement_ranges(
12514 &self,
12515 range: Range<OffsetUtf16>,
12516 cx: &AppContext,
12517 ) -> Vec<Range<OffsetUtf16>> {
12518 let selections = self.selections.all::<OffsetUtf16>(cx);
12519 let newest_selection = selections
12520 .iter()
12521 .max_by_key(|selection| selection.id)
12522 .unwrap();
12523 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12524 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12525 let snapshot = self.buffer.read(cx).read(cx);
12526 selections
12527 .into_iter()
12528 .map(|mut selection| {
12529 selection.start.0 =
12530 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12531 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12532 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12533 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12534 })
12535 .collect()
12536 }
12537
12538 fn report_editor_event(
12539 &self,
12540 operation: &'static str,
12541 file_extension: Option<String>,
12542 cx: &AppContext,
12543 ) {
12544 if cfg!(any(test, feature = "test-support")) {
12545 return;
12546 }
12547
12548 let Some(project) = &self.project else { return };
12549
12550 // If None, we are in a file without an extension
12551 let file = self
12552 .buffer
12553 .read(cx)
12554 .as_singleton()
12555 .and_then(|b| b.read(cx).file());
12556 let file_extension = file_extension.or(file
12557 .as_ref()
12558 .and_then(|file| Path::new(file.file_name(cx)).extension())
12559 .and_then(|e| e.to_str())
12560 .map(|a| a.to_string()));
12561
12562 let vim_mode = cx
12563 .global::<SettingsStore>()
12564 .raw_user_settings()
12565 .get("vim_mode")
12566 == Some(&serde_json::Value::Bool(true));
12567
12568 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12569 == language::language_settings::InlineCompletionProvider::Copilot;
12570 let copilot_enabled_for_language = self
12571 .buffer
12572 .read(cx)
12573 .settings_at(0, cx)
12574 .show_inline_completions;
12575
12576 let project = project.read(cx);
12577 let telemetry = project.client().telemetry().clone();
12578 telemetry.report_editor_event(
12579 file_extension,
12580 vim_mode,
12581 operation,
12582 copilot_enabled,
12583 copilot_enabled_for_language,
12584 project.is_via_ssh(),
12585 )
12586 }
12587
12588 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12589 /// with each line being an array of {text, highlight} objects.
12590 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12591 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12592 return;
12593 };
12594
12595 #[derive(Serialize)]
12596 struct Chunk<'a> {
12597 text: String,
12598 highlight: Option<&'a str>,
12599 }
12600
12601 let snapshot = buffer.read(cx).snapshot();
12602 let range = self
12603 .selected_text_range(false, cx)
12604 .and_then(|selection| {
12605 if selection.range.is_empty() {
12606 None
12607 } else {
12608 Some(selection.range)
12609 }
12610 })
12611 .unwrap_or_else(|| 0..snapshot.len());
12612
12613 let chunks = snapshot.chunks(range, true);
12614 let mut lines = Vec::new();
12615 let mut line: VecDeque<Chunk> = VecDeque::new();
12616
12617 let Some(style) = self.style.as_ref() else {
12618 return;
12619 };
12620
12621 for chunk in chunks {
12622 let highlight = chunk
12623 .syntax_highlight_id
12624 .and_then(|id| id.name(&style.syntax));
12625 let mut chunk_lines = chunk.text.split('\n').peekable();
12626 while let Some(text) = chunk_lines.next() {
12627 let mut merged_with_last_token = false;
12628 if let Some(last_token) = line.back_mut() {
12629 if last_token.highlight == highlight {
12630 last_token.text.push_str(text);
12631 merged_with_last_token = true;
12632 }
12633 }
12634
12635 if !merged_with_last_token {
12636 line.push_back(Chunk {
12637 text: text.into(),
12638 highlight,
12639 });
12640 }
12641
12642 if chunk_lines.peek().is_some() {
12643 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12644 line.pop_front();
12645 }
12646 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12647 line.pop_back();
12648 }
12649
12650 lines.push(mem::take(&mut line));
12651 }
12652 }
12653 }
12654
12655 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12656 return;
12657 };
12658 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12659 }
12660
12661 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12662 &self.inlay_hint_cache
12663 }
12664
12665 pub fn replay_insert_event(
12666 &mut self,
12667 text: &str,
12668 relative_utf16_range: Option<Range<isize>>,
12669 cx: &mut ViewContext<Self>,
12670 ) {
12671 if !self.input_enabled {
12672 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12673 return;
12674 }
12675 if let Some(relative_utf16_range) = relative_utf16_range {
12676 let selections = self.selections.all::<OffsetUtf16>(cx);
12677 self.change_selections(None, cx, |s| {
12678 let new_ranges = selections.into_iter().map(|range| {
12679 let start = OffsetUtf16(
12680 range
12681 .head()
12682 .0
12683 .saturating_add_signed(relative_utf16_range.start),
12684 );
12685 let end = OffsetUtf16(
12686 range
12687 .head()
12688 .0
12689 .saturating_add_signed(relative_utf16_range.end),
12690 );
12691 start..end
12692 });
12693 s.select_ranges(new_ranges);
12694 });
12695 }
12696
12697 self.handle_input(text, cx);
12698 }
12699
12700 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12701 let Some(provider) = self.semantics_provider.as_ref() else {
12702 return false;
12703 };
12704
12705 let mut supports = false;
12706 self.buffer().read(cx).for_each_buffer(|buffer| {
12707 supports |= provider.supports_inlay_hints(buffer, cx);
12708 });
12709 supports
12710 }
12711
12712 pub fn focus(&self, cx: &mut WindowContext) {
12713 cx.focus(&self.focus_handle)
12714 }
12715
12716 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12717 self.focus_handle.is_focused(cx)
12718 }
12719
12720 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12721 cx.emit(EditorEvent::Focused);
12722
12723 if let Some(descendant) = self
12724 .last_focused_descendant
12725 .take()
12726 .and_then(|descendant| descendant.upgrade())
12727 {
12728 cx.focus(&descendant);
12729 } else {
12730 if let Some(blame) = self.blame.as_ref() {
12731 blame.update(cx, GitBlame::focus)
12732 }
12733
12734 self.blink_manager.update(cx, BlinkManager::enable);
12735 self.show_cursor_names(cx);
12736 self.buffer.update(cx, |buffer, cx| {
12737 buffer.finalize_last_transaction(cx);
12738 if self.leader_peer_id.is_none() {
12739 buffer.set_active_selections(
12740 &self.selections.disjoint_anchors(),
12741 self.selections.line_mode,
12742 self.cursor_shape,
12743 cx,
12744 );
12745 }
12746 });
12747 }
12748 }
12749
12750 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12751 cx.emit(EditorEvent::FocusedIn)
12752 }
12753
12754 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12755 if event.blurred != self.focus_handle {
12756 self.last_focused_descendant = Some(event.blurred);
12757 }
12758 }
12759
12760 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12761 self.blink_manager.update(cx, BlinkManager::disable);
12762 self.buffer
12763 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12764
12765 if let Some(blame) = self.blame.as_ref() {
12766 blame.update(cx, GitBlame::blur)
12767 }
12768 if !self.hover_state.focused(cx) {
12769 hide_hover(self, cx);
12770 }
12771
12772 self.hide_context_menu(cx);
12773 cx.emit(EditorEvent::Blurred);
12774 cx.notify();
12775 }
12776
12777 pub fn register_action<A: Action>(
12778 &mut self,
12779 listener: impl Fn(&A, &mut WindowContext) + 'static,
12780 ) -> Subscription {
12781 let id = self.next_editor_action_id.post_inc();
12782 let listener = Arc::new(listener);
12783 self.editor_actions.borrow_mut().insert(
12784 id,
12785 Box::new(move |cx| {
12786 let cx = cx.window_context();
12787 let listener = listener.clone();
12788 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12789 let action = action.downcast_ref().unwrap();
12790 if phase == DispatchPhase::Bubble {
12791 listener(action, cx)
12792 }
12793 })
12794 }),
12795 );
12796
12797 let editor_actions = self.editor_actions.clone();
12798 Subscription::new(move || {
12799 editor_actions.borrow_mut().remove(&id);
12800 })
12801 }
12802
12803 pub fn file_header_size(&self) -> u32 {
12804 self.file_header_size
12805 }
12806
12807 pub fn revert(
12808 &mut self,
12809 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12810 cx: &mut ViewContext<Self>,
12811 ) {
12812 self.buffer().update(cx, |multi_buffer, cx| {
12813 for (buffer_id, changes) in revert_changes {
12814 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12815 buffer.update(cx, |buffer, cx| {
12816 buffer.edit(
12817 changes.into_iter().map(|(range, text)| {
12818 (range, text.to_string().map(Arc::<str>::from))
12819 }),
12820 None,
12821 cx,
12822 );
12823 });
12824 }
12825 }
12826 });
12827 self.change_selections(None, cx, |selections| selections.refresh());
12828 }
12829
12830 pub fn to_pixel_point(
12831 &mut self,
12832 source: multi_buffer::Anchor,
12833 editor_snapshot: &EditorSnapshot,
12834 cx: &mut ViewContext<Self>,
12835 ) -> Option<gpui::Point<Pixels>> {
12836 let source_point = source.to_display_point(editor_snapshot);
12837 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12838 }
12839
12840 pub fn display_to_pixel_point(
12841 &mut self,
12842 source: DisplayPoint,
12843 editor_snapshot: &EditorSnapshot,
12844 cx: &mut ViewContext<Self>,
12845 ) -> Option<gpui::Point<Pixels>> {
12846 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12847 let text_layout_details = self.text_layout_details(cx);
12848 let scroll_top = text_layout_details
12849 .scroll_anchor
12850 .scroll_position(editor_snapshot)
12851 .y;
12852
12853 if source.row().as_f32() < scroll_top.floor() {
12854 return None;
12855 }
12856 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12857 let source_y = line_height * (source.row().as_f32() - scroll_top);
12858 Some(gpui::Point::new(source_x, source_y))
12859 }
12860
12861 pub fn has_active_completions_menu(&self) -> bool {
12862 self.context_menu.read().as_ref().map_or(false, |menu| {
12863 menu.visible() && matches!(menu, ContextMenu::Completions(_))
12864 })
12865 }
12866
12867 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12868 self.addons
12869 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
12870 }
12871
12872 pub fn unregister_addon<T: Addon>(&mut self) {
12873 self.addons.remove(&std::any::TypeId::of::<T>());
12874 }
12875
12876 pub fn addon<T: Addon>(&self) -> Option<&T> {
12877 let type_id = std::any::TypeId::of::<T>();
12878 self.addons
12879 .get(&type_id)
12880 .and_then(|item| item.to_any().downcast_ref::<T>())
12881 }
12882}
12883
12884fn hunks_for_selections(
12885 multi_buffer_snapshot: &MultiBufferSnapshot,
12886 selections: &[Selection<Anchor>],
12887) -> Vec<MultiBufferDiffHunk> {
12888 let buffer_rows_for_selections = selections.iter().map(|selection| {
12889 let head = selection.head();
12890 let tail = selection.tail();
12891 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
12892 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
12893 if start > end {
12894 end..start
12895 } else {
12896 start..end
12897 }
12898 });
12899
12900 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
12901}
12902
12903pub fn hunks_for_rows(
12904 rows: impl Iterator<Item = Range<MultiBufferRow>>,
12905 multi_buffer_snapshot: &MultiBufferSnapshot,
12906) -> Vec<MultiBufferDiffHunk> {
12907 let mut hunks = Vec::new();
12908 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
12909 HashMap::default();
12910 for selected_multi_buffer_rows in rows {
12911 let query_rows =
12912 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
12913 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
12914 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
12915 // when the caret is just above or just below the deleted hunk.
12916 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
12917 let related_to_selection = if allow_adjacent {
12918 hunk.row_range.overlaps(&query_rows)
12919 || hunk.row_range.start == query_rows.end
12920 || hunk.row_range.end == query_rows.start
12921 } else {
12922 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
12923 // `hunk.row_range` is exclusive (e.g. [2..3] means 2nd row is selected)
12924 hunk.row_range.overlaps(&selected_multi_buffer_rows)
12925 || selected_multi_buffer_rows.end == hunk.row_range.start
12926 };
12927 if related_to_selection {
12928 if !processed_buffer_rows
12929 .entry(hunk.buffer_id)
12930 .or_default()
12931 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
12932 {
12933 continue;
12934 }
12935 hunks.push(hunk);
12936 }
12937 }
12938 }
12939
12940 hunks
12941}
12942
12943pub trait CollaborationHub {
12944 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
12945 fn user_participant_indices<'a>(
12946 &self,
12947 cx: &'a AppContext,
12948 ) -> &'a HashMap<u64, ParticipantIndex>;
12949 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
12950}
12951
12952impl CollaborationHub for Model<Project> {
12953 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
12954 self.read(cx).collaborators()
12955 }
12956
12957 fn user_participant_indices<'a>(
12958 &self,
12959 cx: &'a AppContext,
12960 ) -> &'a HashMap<u64, ParticipantIndex> {
12961 self.read(cx).user_store().read(cx).participant_indices()
12962 }
12963
12964 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
12965 let this = self.read(cx);
12966 let user_ids = this.collaborators().values().map(|c| c.user_id);
12967 this.user_store().read_with(cx, |user_store, cx| {
12968 user_store.participant_names(user_ids, cx)
12969 })
12970 }
12971}
12972
12973pub trait SemanticsProvider {
12974 fn hover(
12975 &self,
12976 buffer: &Model<Buffer>,
12977 position: text::Anchor,
12978 cx: &mut AppContext,
12979 ) -> Option<Task<Vec<project::Hover>>>;
12980
12981 fn inlay_hints(
12982 &self,
12983 buffer_handle: Model<Buffer>,
12984 range: Range<text::Anchor>,
12985 cx: &mut AppContext,
12986 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
12987
12988 fn resolve_inlay_hint(
12989 &self,
12990 hint: InlayHint,
12991 buffer_handle: Model<Buffer>,
12992 server_id: LanguageServerId,
12993 cx: &mut AppContext,
12994 ) -> Option<Task<anyhow::Result<InlayHint>>>;
12995
12996 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
12997
12998 fn document_highlights(
12999 &self,
13000 buffer: &Model<Buffer>,
13001 position: text::Anchor,
13002 cx: &mut AppContext,
13003 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13004
13005 fn definitions(
13006 &self,
13007 buffer: &Model<Buffer>,
13008 position: text::Anchor,
13009 kind: GotoDefinitionKind,
13010 cx: &mut AppContext,
13011 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13012
13013 fn range_for_rename(
13014 &self,
13015 buffer: &Model<Buffer>,
13016 position: text::Anchor,
13017 cx: &mut AppContext,
13018 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13019
13020 fn perform_rename(
13021 &self,
13022 buffer: &Model<Buffer>,
13023 position: text::Anchor,
13024 new_name: String,
13025 cx: &mut AppContext,
13026 ) -> Option<Task<Result<ProjectTransaction>>>;
13027}
13028
13029pub trait CompletionProvider {
13030 fn completions(
13031 &self,
13032 buffer: &Model<Buffer>,
13033 buffer_position: text::Anchor,
13034 trigger: CompletionContext,
13035 cx: &mut ViewContext<Editor>,
13036 ) -> Task<Result<Vec<Completion>>>;
13037
13038 fn resolve_completions(
13039 &self,
13040 buffer: Model<Buffer>,
13041 completion_indices: Vec<usize>,
13042 completions: Arc<RwLock<Box<[Completion]>>>,
13043 cx: &mut ViewContext<Editor>,
13044 ) -> Task<Result<bool>>;
13045
13046 fn apply_additional_edits_for_completion(
13047 &self,
13048 buffer: Model<Buffer>,
13049 completion: Completion,
13050 push_to_history: bool,
13051 cx: &mut ViewContext<Editor>,
13052 ) -> Task<Result<Option<language::Transaction>>>;
13053
13054 fn is_completion_trigger(
13055 &self,
13056 buffer: &Model<Buffer>,
13057 position: language::Anchor,
13058 text: &str,
13059 trigger_in_words: bool,
13060 cx: &mut ViewContext<Editor>,
13061 ) -> bool;
13062
13063 fn sort_completions(&self) -> bool {
13064 true
13065 }
13066}
13067
13068pub trait CodeActionProvider {
13069 fn code_actions(
13070 &self,
13071 buffer: &Model<Buffer>,
13072 range: Range<text::Anchor>,
13073 cx: &mut WindowContext,
13074 ) -> Task<Result<Vec<CodeAction>>>;
13075
13076 fn apply_code_action(
13077 &self,
13078 buffer_handle: Model<Buffer>,
13079 action: CodeAction,
13080 excerpt_id: ExcerptId,
13081 push_to_history: bool,
13082 cx: &mut WindowContext,
13083 ) -> Task<Result<ProjectTransaction>>;
13084}
13085
13086impl CodeActionProvider for Model<Project> {
13087 fn code_actions(
13088 &self,
13089 buffer: &Model<Buffer>,
13090 range: Range<text::Anchor>,
13091 cx: &mut WindowContext,
13092 ) -> Task<Result<Vec<CodeAction>>> {
13093 self.update(cx, |project, cx| project.code_actions(buffer, range, cx))
13094 }
13095
13096 fn apply_code_action(
13097 &self,
13098 buffer_handle: Model<Buffer>,
13099 action: CodeAction,
13100 _excerpt_id: ExcerptId,
13101 push_to_history: bool,
13102 cx: &mut WindowContext,
13103 ) -> Task<Result<ProjectTransaction>> {
13104 self.update(cx, |project, cx| {
13105 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13106 })
13107 }
13108}
13109
13110fn snippet_completions(
13111 project: &Project,
13112 buffer: &Model<Buffer>,
13113 buffer_position: text::Anchor,
13114 cx: &mut AppContext,
13115) -> Vec<Completion> {
13116 let language = buffer.read(cx).language_at(buffer_position);
13117 let language_name = language.as_ref().map(|language| language.lsp_id());
13118 let snippet_store = project.snippets().read(cx);
13119 let snippets = snippet_store.snippets_for(language_name, cx);
13120
13121 if snippets.is_empty() {
13122 return vec![];
13123 }
13124 let snapshot = buffer.read(cx).text_snapshot();
13125 let chars = snapshot.reversed_chars_for_range(text::Anchor::MIN..buffer_position);
13126
13127 let scope = language.map(|language| language.default_scope());
13128 let classifier = CharClassifier::new(scope).for_completion(true);
13129 let mut last_word = chars
13130 .take_while(|c| classifier.is_word(*c))
13131 .collect::<String>();
13132 last_word = last_word.chars().rev().collect();
13133 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13134 let to_lsp = |point: &text::Anchor| {
13135 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13136 point_to_lsp(end)
13137 };
13138 let lsp_end = to_lsp(&buffer_position);
13139 snippets
13140 .into_iter()
13141 .filter_map(|snippet| {
13142 let matching_prefix = snippet
13143 .prefix
13144 .iter()
13145 .find(|prefix| prefix.starts_with(&last_word))?;
13146 let start = as_offset - last_word.len();
13147 let start = snapshot.anchor_before(start);
13148 let range = start..buffer_position;
13149 let lsp_start = to_lsp(&start);
13150 let lsp_range = lsp::Range {
13151 start: lsp_start,
13152 end: lsp_end,
13153 };
13154 Some(Completion {
13155 old_range: range,
13156 new_text: snippet.body.clone(),
13157 label: CodeLabel {
13158 text: matching_prefix.clone(),
13159 runs: vec![],
13160 filter_range: 0..matching_prefix.len(),
13161 },
13162 server_id: LanguageServerId(usize::MAX),
13163 documentation: snippet.description.clone().map(Documentation::SingleLine),
13164 lsp_completion: lsp::CompletionItem {
13165 label: snippet.prefix.first().unwrap().clone(),
13166 kind: Some(CompletionItemKind::SNIPPET),
13167 label_details: snippet.description.as_ref().map(|description| {
13168 lsp::CompletionItemLabelDetails {
13169 detail: Some(description.clone()),
13170 description: None,
13171 }
13172 }),
13173 insert_text_format: Some(InsertTextFormat::SNIPPET),
13174 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13175 lsp::InsertReplaceEdit {
13176 new_text: snippet.body.clone(),
13177 insert: lsp_range,
13178 replace: lsp_range,
13179 },
13180 )),
13181 filter_text: Some(snippet.body.clone()),
13182 sort_text: Some(char::MAX.to_string()),
13183 ..Default::default()
13184 },
13185 confirm: None,
13186 })
13187 })
13188 .collect()
13189}
13190
13191impl CompletionProvider for Model<Project> {
13192 fn completions(
13193 &self,
13194 buffer: &Model<Buffer>,
13195 buffer_position: text::Anchor,
13196 options: CompletionContext,
13197 cx: &mut ViewContext<Editor>,
13198 ) -> Task<Result<Vec<Completion>>> {
13199 self.update(cx, |project, cx| {
13200 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13201 let project_completions = project.completions(buffer, buffer_position, options, cx);
13202 cx.background_executor().spawn(async move {
13203 let mut completions = project_completions.await?;
13204 //let snippets = snippets.into_iter().;
13205 completions.extend(snippets);
13206 Ok(completions)
13207 })
13208 })
13209 }
13210
13211 fn resolve_completions(
13212 &self,
13213 buffer: Model<Buffer>,
13214 completion_indices: Vec<usize>,
13215 completions: Arc<RwLock<Box<[Completion]>>>,
13216 cx: &mut ViewContext<Editor>,
13217 ) -> Task<Result<bool>> {
13218 self.update(cx, |project, cx| {
13219 project.resolve_completions(buffer, completion_indices, completions, cx)
13220 })
13221 }
13222
13223 fn apply_additional_edits_for_completion(
13224 &self,
13225 buffer: Model<Buffer>,
13226 completion: Completion,
13227 push_to_history: bool,
13228 cx: &mut ViewContext<Editor>,
13229 ) -> Task<Result<Option<language::Transaction>>> {
13230 self.update(cx, |project, cx| {
13231 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13232 })
13233 }
13234
13235 fn is_completion_trigger(
13236 &self,
13237 buffer: &Model<Buffer>,
13238 position: language::Anchor,
13239 text: &str,
13240 trigger_in_words: bool,
13241 cx: &mut ViewContext<Editor>,
13242 ) -> bool {
13243 if !EditorSettings::get_global(cx).show_completions_on_input {
13244 return false;
13245 }
13246
13247 let mut chars = text.chars();
13248 let char = if let Some(char) = chars.next() {
13249 char
13250 } else {
13251 return false;
13252 };
13253 if chars.next().is_some() {
13254 return false;
13255 }
13256
13257 let buffer = buffer.read(cx);
13258 let classifier = buffer
13259 .snapshot()
13260 .char_classifier_at(position)
13261 .for_completion(true);
13262 if trigger_in_words && classifier.is_word(char) {
13263 return true;
13264 }
13265
13266 buffer
13267 .completion_triggers()
13268 .iter()
13269 .any(|string| string == text)
13270 }
13271}
13272
13273impl SemanticsProvider for Model<Project> {
13274 fn hover(
13275 &self,
13276 buffer: &Model<Buffer>,
13277 position: text::Anchor,
13278 cx: &mut AppContext,
13279 ) -> Option<Task<Vec<project::Hover>>> {
13280 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13281 }
13282
13283 fn document_highlights(
13284 &self,
13285 buffer: &Model<Buffer>,
13286 position: text::Anchor,
13287 cx: &mut AppContext,
13288 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13289 Some(self.update(cx, |project, cx| {
13290 project.document_highlights(buffer, position, cx)
13291 }))
13292 }
13293
13294 fn definitions(
13295 &self,
13296 buffer: &Model<Buffer>,
13297 position: text::Anchor,
13298 kind: GotoDefinitionKind,
13299 cx: &mut AppContext,
13300 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13301 Some(self.update(cx, |project, cx| match kind {
13302 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13303 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13304 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13305 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13306 }))
13307 }
13308
13309 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13310 // TODO: make this work for remote projects
13311 self.read(cx)
13312 .language_servers_for_buffer(buffer.read(cx), cx)
13313 .any(
13314 |(_, server)| match server.capabilities().inlay_hint_provider {
13315 Some(lsp::OneOf::Left(enabled)) => enabled,
13316 Some(lsp::OneOf::Right(_)) => true,
13317 None => false,
13318 },
13319 )
13320 }
13321
13322 fn inlay_hints(
13323 &self,
13324 buffer_handle: Model<Buffer>,
13325 range: Range<text::Anchor>,
13326 cx: &mut AppContext,
13327 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13328 Some(self.update(cx, |project, cx| {
13329 project.inlay_hints(buffer_handle, range, cx)
13330 }))
13331 }
13332
13333 fn resolve_inlay_hint(
13334 &self,
13335 hint: InlayHint,
13336 buffer_handle: Model<Buffer>,
13337 server_id: LanguageServerId,
13338 cx: &mut AppContext,
13339 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13340 Some(self.update(cx, |project, cx| {
13341 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13342 }))
13343 }
13344
13345 fn range_for_rename(
13346 &self,
13347 buffer: &Model<Buffer>,
13348 position: text::Anchor,
13349 cx: &mut AppContext,
13350 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13351 Some(self.update(cx, |project, cx| {
13352 project.prepare_rename(buffer.clone(), position, cx)
13353 }))
13354 }
13355
13356 fn perform_rename(
13357 &self,
13358 buffer: &Model<Buffer>,
13359 position: text::Anchor,
13360 new_name: String,
13361 cx: &mut AppContext,
13362 ) -> Option<Task<Result<ProjectTransaction>>> {
13363 Some(self.update(cx, |project, cx| {
13364 project.perform_rename(buffer.clone(), position, new_name, cx)
13365 }))
13366 }
13367}
13368
13369fn inlay_hint_settings(
13370 location: Anchor,
13371 snapshot: &MultiBufferSnapshot,
13372 cx: &mut ViewContext<'_, Editor>,
13373) -> InlayHintSettings {
13374 let file = snapshot.file_at(location);
13375 let language = snapshot.language_at(location);
13376 let settings = all_language_settings(file, cx);
13377 settings
13378 .language(language.map(|l| l.name()).as_ref())
13379 .inlay_hints
13380}
13381
13382fn consume_contiguous_rows(
13383 contiguous_row_selections: &mut Vec<Selection<Point>>,
13384 selection: &Selection<Point>,
13385 display_map: &DisplaySnapshot,
13386 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
13387) -> (MultiBufferRow, MultiBufferRow) {
13388 contiguous_row_selections.push(selection.clone());
13389 let start_row = MultiBufferRow(selection.start.row);
13390 let mut end_row = ending_row(selection, display_map);
13391
13392 while let Some(next_selection) = selections.peek() {
13393 if next_selection.start.row <= end_row.0 {
13394 end_row = ending_row(next_selection, display_map);
13395 contiguous_row_selections.push(selections.next().unwrap().clone());
13396 } else {
13397 break;
13398 }
13399 }
13400 (start_row, end_row)
13401}
13402
13403fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13404 if next_selection.end.column > 0 || next_selection.is_empty() {
13405 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13406 } else {
13407 MultiBufferRow(next_selection.end.row)
13408 }
13409}
13410
13411impl EditorSnapshot {
13412 pub fn remote_selections_in_range<'a>(
13413 &'a self,
13414 range: &'a Range<Anchor>,
13415 collaboration_hub: &dyn CollaborationHub,
13416 cx: &'a AppContext,
13417 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13418 let participant_names = collaboration_hub.user_names(cx);
13419 let participant_indices = collaboration_hub.user_participant_indices(cx);
13420 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13421 let collaborators_by_replica_id = collaborators_by_peer_id
13422 .iter()
13423 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13424 .collect::<HashMap<_, _>>();
13425 self.buffer_snapshot
13426 .selections_in_range(range, false)
13427 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13428 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13429 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13430 let user_name = participant_names.get(&collaborator.user_id).cloned();
13431 Some(RemoteSelection {
13432 replica_id,
13433 selection,
13434 cursor_shape,
13435 line_mode,
13436 participant_index,
13437 peer_id: collaborator.peer_id,
13438 user_name,
13439 })
13440 })
13441 }
13442
13443 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13444 self.display_snapshot.buffer_snapshot.language_at(position)
13445 }
13446
13447 pub fn is_focused(&self) -> bool {
13448 self.is_focused
13449 }
13450
13451 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13452 self.placeholder_text.as_ref()
13453 }
13454
13455 pub fn scroll_position(&self) -> gpui::Point<f32> {
13456 self.scroll_anchor.scroll_position(&self.display_snapshot)
13457 }
13458
13459 fn gutter_dimensions(
13460 &self,
13461 font_id: FontId,
13462 font_size: Pixels,
13463 em_width: Pixels,
13464 em_advance: Pixels,
13465 max_line_number_width: Pixels,
13466 cx: &AppContext,
13467 ) -> GutterDimensions {
13468 if !self.show_gutter {
13469 return GutterDimensions::default();
13470 }
13471 let descent = cx.text_system().descent(font_id, font_size);
13472
13473 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13474 matches!(
13475 ProjectSettings::get_global(cx).git.git_gutter,
13476 Some(GitGutterSetting::TrackedFiles)
13477 )
13478 });
13479 let gutter_settings = EditorSettings::get_global(cx).gutter;
13480 let show_line_numbers = self
13481 .show_line_numbers
13482 .unwrap_or(gutter_settings.line_numbers);
13483 let line_gutter_width = if show_line_numbers {
13484 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13485 let min_width_for_number_on_gutter = em_advance * 4.0;
13486 max_line_number_width.max(min_width_for_number_on_gutter)
13487 } else {
13488 0.0.into()
13489 };
13490
13491 let show_code_actions = self
13492 .show_code_actions
13493 .unwrap_or(gutter_settings.code_actions);
13494
13495 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13496
13497 let git_blame_entries_width =
13498 self.git_blame_gutter_max_author_length
13499 .map(|max_author_length| {
13500 // Length of the author name, but also space for the commit hash,
13501 // the spacing and the timestamp.
13502 let max_char_count = max_author_length
13503 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13504 + 7 // length of commit sha
13505 + 14 // length of max relative timestamp ("60 minutes ago")
13506 + 4; // gaps and margins
13507
13508 em_advance * max_char_count
13509 });
13510
13511 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13512 left_padding += if show_code_actions || show_runnables {
13513 em_width * 3.0
13514 } else if show_git_gutter && show_line_numbers {
13515 em_width * 2.0
13516 } else if show_git_gutter || show_line_numbers {
13517 em_width
13518 } else {
13519 px(0.)
13520 };
13521
13522 let right_padding = if gutter_settings.folds && show_line_numbers {
13523 em_width * 4.0
13524 } else if gutter_settings.folds {
13525 em_width * 3.0
13526 } else if show_line_numbers {
13527 em_width
13528 } else {
13529 px(0.)
13530 };
13531
13532 GutterDimensions {
13533 left_padding,
13534 right_padding,
13535 width: line_gutter_width + left_padding + right_padding,
13536 margin: -descent,
13537 git_blame_entries_width,
13538 }
13539 }
13540
13541 pub fn render_fold_toggle(
13542 &self,
13543 buffer_row: MultiBufferRow,
13544 row_contains_cursor: bool,
13545 editor: View<Editor>,
13546 cx: &mut WindowContext,
13547 ) -> Option<AnyElement> {
13548 let folded = self.is_line_folded(buffer_row);
13549
13550 if let Some(crease) = self
13551 .crease_snapshot
13552 .query_row(buffer_row, &self.buffer_snapshot)
13553 {
13554 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
13555 if folded {
13556 editor.update(cx, |editor, cx| {
13557 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
13558 });
13559 } else {
13560 editor.update(cx, |editor, cx| {
13561 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
13562 });
13563 }
13564 });
13565
13566 Some((crease.render_toggle)(
13567 buffer_row,
13568 folded,
13569 toggle_callback,
13570 cx,
13571 ))
13572 } else if folded
13573 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
13574 {
13575 Some(
13576 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
13577 .selected(folded)
13578 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
13579 if folded {
13580 this.unfold_at(&UnfoldAt { buffer_row }, cx);
13581 } else {
13582 this.fold_at(&FoldAt { buffer_row }, cx);
13583 }
13584 }))
13585 .into_any_element(),
13586 )
13587 } else {
13588 None
13589 }
13590 }
13591
13592 pub fn render_crease_trailer(
13593 &self,
13594 buffer_row: MultiBufferRow,
13595 cx: &mut WindowContext,
13596 ) -> Option<AnyElement> {
13597 let folded = self.is_line_folded(buffer_row);
13598 let crease = self
13599 .crease_snapshot
13600 .query_row(buffer_row, &self.buffer_snapshot)?;
13601 Some((crease.render_trailer)(buffer_row, folded, cx))
13602 }
13603}
13604
13605impl Deref for EditorSnapshot {
13606 type Target = DisplaySnapshot;
13607
13608 fn deref(&self) -> &Self::Target {
13609 &self.display_snapshot
13610 }
13611}
13612
13613#[derive(Clone, Debug, PartialEq, Eq)]
13614pub enum EditorEvent {
13615 InputIgnored {
13616 text: Arc<str>,
13617 },
13618 InputHandled {
13619 utf16_range_to_replace: Option<Range<isize>>,
13620 text: Arc<str>,
13621 },
13622 ExcerptsAdded {
13623 buffer: Model<Buffer>,
13624 predecessor: ExcerptId,
13625 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
13626 },
13627 ExcerptsRemoved {
13628 ids: Vec<ExcerptId>,
13629 },
13630 ExcerptsEdited {
13631 ids: Vec<ExcerptId>,
13632 },
13633 ExcerptsExpanded {
13634 ids: Vec<ExcerptId>,
13635 },
13636 BufferEdited,
13637 Edited {
13638 transaction_id: clock::Lamport,
13639 },
13640 Reparsed(BufferId),
13641 Focused,
13642 FocusedIn,
13643 Blurred,
13644 DirtyChanged,
13645 Saved,
13646 TitleChanged,
13647 DiffBaseChanged,
13648 SelectionsChanged {
13649 local: bool,
13650 },
13651 ScrollPositionChanged {
13652 local: bool,
13653 autoscroll: bool,
13654 },
13655 Closed,
13656 TransactionUndone {
13657 transaction_id: clock::Lamport,
13658 },
13659 TransactionBegun {
13660 transaction_id: clock::Lamport,
13661 },
13662 Reloaded,
13663 CursorShapeChanged,
13664}
13665
13666impl EventEmitter<EditorEvent> for Editor {}
13667
13668impl FocusableView for Editor {
13669 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
13670 self.focus_handle.clone()
13671 }
13672}
13673
13674impl Render for Editor {
13675 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
13676 let settings = ThemeSettings::get_global(cx);
13677
13678 let text_style = match self.mode {
13679 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
13680 color: cx.theme().colors().editor_foreground,
13681 font_family: settings.ui_font.family.clone(),
13682 font_features: settings.ui_font.features.clone(),
13683 font_fallbacks: settings.ui_font.fallbacks.clone(),
13684 font_size: rems(0.875).into(),
13685 font_weight: settings.ui_font.weight,
13686 line_height: relative(settings.buffer_line_height.value()),
13687 ..Default::default()
13688 },
13689 EditorMode::Full => TextStyle {
13690 color: cx.theme().colors().editor_foreground,
13691 font_family: settings.buffer_font.family.clone(),
13692 font_features: settings.buffer_font.features.clone(),
13693 font_fallbacks: settings.buffer_font.fallbacks.clone(),
13694 font_size: settings.buffer_font_size(cx).into(),
13695 font_weight: settings.buffer_font.weight,
13696 line_height: relative(settings.buffer_line_height.value()),
13697 ..Default::default()
13698 },
13699 };
13700
13701 let background = match self.mode {
13702 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
13703 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
13704 EditorMode::Full => cx.theme().colors().editor_background,
13705 };
13706
13707 EditorElement::new(
13708 cx.view(),
13709 EditorStyle {
13710 background,
13711 local_player: cx.theme().players().local(),
13712 text: text_style,
13713 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
13714 syntax: cx.theme().syntax().clone(),
13715 status: cx.theme().status().clone(),
13716 inlay_hints_style: make_inlay_hints_style(cx),
13717 suggestions_style: HighlightStyle {
13718 color: Some(cx.theme().status().predictive),
13719 ..HighlightStyle::default()
13720 },
13721 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
13722 },
13723 )
13724 }
13725}
13726
13727impl ViewInputHandler for Editor {
13728 fn text_for_range(
13729 &mut self,
13730 range_utf16: Range<usize>,
13731 cx: &mut ViewContext<Self>,
13732 ) -> Option<String> {
13733 Some(
13734 self.buffer
13735 .read(cx)
13736 .read(cx)
13737 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
13738 .collect(),
13739 )
13740 }
13741
13742 fn selected_text_range(
13743 &mut self,
13744 ignore_disabled_input: bool,
13745 cx: &mut ViewContext<Self>,
13746 ) -> Option<UTF16Selection> {
13747 // Prevent the IME menu from appearing when holding down an alphabetic key
13748 // while input is disabled.
13749 if !ignore_disabled_input && !self.input_enabled {
13750 return None;
13751 }
13752
13753 let selection = self.selections.newest::<OffsetUtf16>(cx);
13754 let range = selection.range();
13755
13756 Some(UTF16Selection {
13757 range: range.start.0..range.end.0,
13758 reversed: selection.reversed,
13759 })
13760 }
13761
13762 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
13763 let snapshot = self.buffer.read(cx).read(cx);
13764 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
13765 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
13766 }
13767
13768 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
13769 self.clear_highlights::<InputComposition>(cx);
13770 self.ime_transaction.take();
13771 }
13772
13773 fn replace_text_in_range(
13774 &mut self,
13775 range_utf16: Option<Range<usize>>,
13776 text: &str,
13777 cx: &mut ViewContext<Self>,
13778 ) {
13779 if !self.input_enabled {
13780 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13781 return;
13782 }
13783
13784 self.transact(cx, |this, cx| {
13785 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
13786 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13787 Some(this.selection_replacement_ranges(range_utf16, cx))
13788 } else {
13789 this.marked_text_ranges(cx)
13790 };
13791
13792 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
13793 let newest_selection_id = this.selections.newest_anchor().id;
13794 this.selections
13795 .all::<OffsetUtf16>(cx)
13796 .iter()
13797 .zip(ranges_to_replace.iter())
13798 .find_map(|(selection, range)| {
13799 if selection.id == newest_selection_id {
13800 Some(
13801 (range.start.0 as isize - selection.head().0 as isize)
13802 ..(range.end.0 as isize - selection.head().0 as isize),
13803 )
13804 } else {
13805 None
13806 }
13807 })
13808 });
13809
13810 cx.emit(EditorEvent::InputHandled {
13811 utf16_range_to_replace: range_to_replace,
13812 text: text.into(),
13813 });
13814
13815 if let Some(new_selected_ranges) = new_selected_ranges {
13816 this.change_selections(None, cx, |selections| {
13817 selections.select_ranges(new_selected_ranges)
13818 });
13819 this.backspace(&Default::default(), cx);
13820 }
13821
13822 this.handle_input(text, cx);
13823 });
13824
13825 if let Some(transaction) = self.ime_transaction {
13826 self.buffer.update(cx, |buffer, cx| {
13827 buffer.group_until_transaction(transaction, cx);
13828 });
13829 }
13830
13831 self.unmark_text(cx);
13832 }
13833
13834 fn replace_and_mark_text_in_range(
13835 &mut self,
13836 range_utf16: Option<Range<usize>>,
13837 text: &str,
13838 new_selected_range_utf16: Option<Range<usize>>,
13839 cx: &mut ViewContext<Self>,
13840 ) {
13841 if !self.input_enabled {
13842 return;
13843 }
13844
13845 let transaction = self.transact(cx, |this, cx| {
13846 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
13847 let snapshot = this.buffer.read(cx).read(cx);
13848 if let Some(relative_range_utf16) = range_utf16.as_ref() {
13849 for marked_range in &mut marked_ranges {
13850 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
13851 marked_range.start.0 += relative_range_utf16.start;
13852 marked_range.start =
13853 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
13854 marked_range.end =
13855 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
13856 }
13857 }
13858 Some(marked_ranges)
13859 } else if let Some(range_utf16) = range_utf16 {
13860 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13861 Some(this.selection_replacement_ranges(range_utf16, cx))
13862 } else {
13863 None
13864 };
13865
13866 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
13867 let newest_selection_id = this.selections.newest_anchor().id;
13868 this.selections
13869 .all::<OffsetUtf16>(cx)
13870 .iter()
13871 .zip(ranges_to_replace.iter())
13872 .find_map(|(selection, range)| {
13873 if selection.id == newest_selection_id {
13874 Some(
13875 (range.start.0 as isize - selection.head().0 as isize)
13876 ..(range.end.0 as isize - selection.head().0 as isize),
13877 )
13878 } else {
13879 None
13880 }
13881 })
13882 });
13883
13884 cx.emit(EditorEvent::InputHandled {
13885 utf16_range_to_replace: range_to_replace,
13886 text: text.into(),
13887 });
13888
13889 if let Some(ranges) = ranges_to_replace {
13890 this.change_selections(None, cx, |s| s.select_ranges(ranges));
13891 }
13892
13893 let marked_ranges = {
13894 let snapshot = this.buffer.read(cx).read(cx);
13895 this.selections
13896 .disjoint_anchors()
13897 .iter()
13898 .map(|selection| {
13899 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
13900 })
13901 .collect::<Vec<_>>()
13902 };
13903
13904 if text.is_empty() {
13905 this.unmark_text(cx);
13906 } else {
13907 this.highlight_text::<InputComposition>(
13908 marked_ranges.clone(),
13909 HighlightStyle {
13910 underline: Some(UnderlineStyle {
13911 thickness: px(1.),
13912 color: None,
13913 wavy: false,
13914 }),
13915 ..Default::default()
13916 },
13917 cx,
13918 );
13919 }
13920
13921 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
13922 let use_autoclose = this.use_autoclose;
13923 let use_auto_surround = this.use_auto_surround;
13924 this.set_use_autoclose(false);
13925 this.set_use_auto_surround(false);
13926 this.handle_input(text, cx);
13927 this.set_use_autoclose(use_autoclose);
13928 this.set_use_auto_surround(use_auto_surround);
13929
13930 if let Some(new_selected_range) = new_selected_range_utf16 {
13931 let snapshot = this.buffer.read(cx).read(cx);
13932 let new_selected_ranges = marked_ranges
13933 .into_iter()
13934 .map(|marked_range| {
13935 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
13936 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
13937 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
13938 snapshot.clip_offset_utf16(new_start, Bias::Left)
13939 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
13940 })
13941 .collect::<Vec<_>>();
13942
13943 drop(snapshot);
13944 this.change_selections(None, cx, |selections| {
13945 selections.select_ranges(new_selected_ranges)
13946 });
13947 }
13948 });
13949
13950 self.ime_transaction = self.ime_transaction.or(transaction);
13951 if let Some(transaction) = self.ime_transaction {
13952 self.buffer.update(cx, |buffer, cx| {
13953 buffer.group_until_transaction(transaction, cx);
13954 });
13955 }
13956
13957 if self.text_highlights::<InputComposition>(cx).is_none() {
13958 self.ime_transaction.take();
13959 }
13960 }
13961
13962 fn bounds_for_range(
13963 &mut self,
13964 range_utf16: Range<usize>,
13965 element_bounds: gpui::Bounds<Pixels>,
13966 cx: &mut ViewContext<Self>,
13967 ) -> Option<gpui::Bounds<Pixels>> {
13968 let text_layout_details = self.text_layout_details(cx);
13969 let style = &text_layout_details.editor_style;
13970 let font_id = cx.text_system().resolve_font(&style.text.font());
13971 let font_size = style.text.font_size.to_pixels(cx.rem_size());
13972 let line_height = style.text.line_height_in_pixels(cx.rem_size());
13973
13974 let em_width = cx
13975 .text_system()
13976 .typographic_bounds(font_id, font_size, 'm')
13977 .unwrap()
13978 .size
13979 .width;
13980
13981 let snapshot = self.snapshot(cx);
13982 let scroll_position = snapshot.scroll_position();
13983 let scroll_left = scroll_position.x * em_width;
13984
13985 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
13986 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
13987 + self.gutter_dimensions.width;
13988 let y = line_height * (start.row().as_f32() - scroll_position.y);
13989
13990 Some(Bounds {
13991 origin: element_bounds.origin + point(x, y),
13992 size: size(em_width, line_height),
13993 })
13994 }
13995}
13996
13997trait SelectionExt {
13998 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
13999 fn spanned_rows(
14000 &self,
14001 include_end_if_at_line_start: bool,
14002 map: &DisplaySnapshot,
14003 ) -> Range<MultiBufferRow>;
14004}
14005
14006impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14007 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14008 let start = self
14009 .start
14010 .to_point(&map.buffer_snapshot)
14011 .to_display_point(map);
14012 let end = self
14013 .end
14014 .to_point(&map.buffer_snapshot)
14015 .to_display_point(map);
14016 if self.reversed {
14017 end..start
14018 } else {
14019 start..end
14020 }
14021 }
14022
14023 fn spanned_rows(
14024 &self,
14025 include_end_if_at_line_start: bool,
14026 map: &DisplaySnapshot,
14027 ) -> Range<MultiBufferRow> {
14028 let start = self.start.to_point(&map.buffer_snapshot);
14029 let mut end = self.end.to_point(&map.buffer_snapshot);
14030 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14031 end.row -= 1;
14032 }
14033
14034 let buffer_start = map.prev_line_boundary(start).0;
14035 let buffer_end = map.next_line_boundary(end).0;
14036 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14037 }
14038}
14039
14040impl<T: InvalidationRegion> InvalidationStack<T> {
14041 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14042 where
14043 S: Clone + ToOffset,
14044 {
14045 while let Some(region) = self.last() {
14046 let all_selections_inside_invalidation_ranges =
14047 if selections.len() == region.ranges().len() {
14048 selections
14049 .iter()
14050 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14051 .all(|(selection, invalidation_range)| {
14052 let head = selection.head().to_offset(buffer);
14053 invalidation_range.start <= head && invalidation_range.end >= head
14054 })
14055 } else {
14056 false
14057 };
14058
14059 if all_selections_inside_invalidation_ranges {
14060 break;
14061 } else {
14062 self.pop();
14063 }
14064 }
14065 }
14066}
14067
14068impl<T> Default for InvalidationStack<T> {
14069 fn default() -> Self {
14070 Self(Default::default())
14071 }
14072}
14073
14074impl<T> Deref for InvalidationStack<T> {
14075 type Target = Vec<T>;
14076
14077 fn deref(&self) -> &Self::Target {
14078 &self.0
14079 }
14080}
14081
14082impl<T> DerefMut for InvalidationStack<T> {
14083 fn deref_mut(&mut self) -> &mut Self::Target {
14084 &mut self.0
14085 }
14086}
14087
14088impl InvalidationRegion for SnippetState {
14089 fn ranges(&self) -> &[Range<Anchor>] {
14090 &self.ranges[self.active_index]
14091 }
14092}
14093
14094pub fn diagnostic_block_renderer(
14095 diagnostic: Diagnostic,
14096 max_message_rows: Option<u8>,
14097 allow_closing: bool,
14098 _is_valid: bool,
14099) -> RenderBlock {
14100 let (text_without_backticks, code_ranges) =
14101 highlight_diagnostic_message(&diagnostic, max_message_rows);
14102
14103 Box::new(move |cx: &mut BlockContext| {
14104 let group_id: SharedString = cx.block_id.to_string().into();
14105
14106 let mut text_style = cx.text_style().clone();
14107 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14108 let theme_settings = ThemeSettings::get_global(cx);
14109 text_style.font_family = theme_settings.buffer_font.family.clone();
14110 text_style.font_style = theme_settings.buffer_font.style;
14111 text_style.font_features = theme_settings.buffer_font.features.clone();
14112 text_style.font_weight = theme_settings.buffer_font.weight;
14113
14114 let multi_line_diagnostic = diagnostic.message.contains('\n');
14115
14116 let buttons = |diagnostic: &Diagnostic, block_id: BlockId| {
14117 if multi_line_diagnostic {
14118 v_flex()
14119 } else {
14120 h_flex()
14121 }
14122 .when(allow_closing, |div| {
14123 div.children(diagnostic.is_primary.then(|| {
14124 IconButton::new(("close-block", EntityId::from(block_id)), IconName::XCircle)
14125 .icon_color(Color::Muted)
14126 .size(ButtonSize::Compact)
14127 .style(ButtonStyle::Transparent)
14128 .visible_on_hover(group_id.clone())
14129 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14130 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14131 }))
14132 })
14133 .child(
14134 IconButton::new(("copy-block", EntityId::from(block_id)), IconName::Copy)
14135 .icon_color(Color::Muted)
14136 .size(ButtonSize::Compact)
14137 .style(ButtonStyle::Transparent)
14138 .visible_on_hover(group_id.clone())
14139 .on_click({
14140 let message = diagnostic.message.clone();
14141 move |_click, cx| {
14142 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14143 }
14144 })
14145 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14146 )
14147 };
14148
14149 let icon_size = buttons(&diagnostic, cx.block_id)
14150 .into_any_element()
14151 .layout_as_root(AvailableSpace::min_size(), cx);
14152
14153 h_flex()
14154 .id(cx.block_id)
14155 .group(group_id.clone())
14156 .relative()
14157 .size_full()
14158 .pl(cx.gutter_dimensions.width)
14159 .w(cx.max_width + cx.gutter_dimensions.width)
14160 .child(
14161 div()
14162 .flex()
14163 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14164 .flex_shrink(),
14165 )
14166 .child(buttons(&diagnostic, cx.block_id))
14167 .child(div().flex().flex_shrink_0().child(
14168 StyledText::new(text_without_backticks.clone()).with_highlights(
14169 &text_style,
14170 code_ranges.iter().map(|range| {
14171 (
14172 range.clone(),
14173 HighlightStyle {
14174 font_weight: Some(FontWeight::BOLD),
14175 ..Default::default()
14176 },
14177 )
14178 }),
14179 ),
14180 ))
14181 .into_any_element()
14182 })
14183}
14184
14185pub fn highlight_diagnostic_message(
14186 diagnostic: &Diagnostic,
14187 mut max_message_rows: Option<u8>,
14188) -> (SharedString, Vec<Range<usize>>) {
14189 let mut text_without_backticks = String::new();
14190 let mut code_ranges = Vec::new();
14191
14192 if let Some(source) = &diagnostic.source {
14193 text_without_backticks.push_str(source);
14194 code_ranges.push(0..source.len());
14195 text_without_backticks.push_str(": ");
14196 }
14197
14198 let mut prev_offset = 0;
14199 let mut in_code_block = false;
14200 let has_row_limit = max_message_rows.is_some();
14201 let mut newline_indices = diagnostic
14202 .message
14203 .match_indices('\n')
14204 .filter(|_| has_row_limit)
14205 .map(|(ix, _)| ix)
14206 .fuse()
14207 .peekable();
14208
14209 for (quote_ix, _) in diagnostic
14210 .message
14211 .match_indices('`')
14212 .chain([(diagnostic.message.len(), "")])
14213 {
14214 let mut first_newline_ix = None;
14215 let mut last_newline_ix = None;
14216 while let Some(newline_ix) = newline_indices.peek() {
14217 if *newline_ix < quote_ix {
14218 if first_newline_ix.is_none() {
14219 first_newline_ix = Some(*newline_ix);
14220 }
14221 last_newline_ix = Some(*newline_ix);
14222
14223 if let Some(rows_left) = &mut max_message_rows {
14224 if *rows_left == 0 {
14225 break;
14226 } else {
14227 *rows_left -= 1;
14228 }
14229 }
14230 let _ = newline_indices.next();
14231 } else {
14232 break;
14233 }
14234 }
14235 let prev_len = text_without_backticks.len();
14236 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14237 text_without_backticks.push_str(new_text);
14238 if in_code_block {
14239 code_ranges.push(prev_len..text_without_backticks.len());
14240 }
14241 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14242 in_code_block = !in_code_block;
14243 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14244 text_without_backticks.push_str("...");
14245 break;
14246 }
14247 }
14248
14249 (text_without_backticks.into(), code_ranges)
14250}
14251
14252fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14253 match severity {
14254 DiagnosticSeverity::ERROR => colors.error,
14255 DiagnosticSeverity::WARNING => colors.warning,
14256 DiagnosticSeverity::INFORMATION => colors.info,
14257 DiagnosticSeverity::HINT => colors.info,
14258 _ => colors.ignored,
14259 }
14260}
14261
14262pub fn styled_runs_for_code_label<'a>(
14263 label: &'a CodeLabel,
14264 syntax_theme: &'a theme::SyntaxTheme,
14265) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14266 let fade_out = HighlightStyle {
14267 fade_out: Some(0.35),
14268 ..Default::default()
14269 };
14270
14271 let mut prev_end = label.filter_range.end;
14272 label
14273 .runs
14274 .iter()
14275 .enumerate()
14276 .flat_map(move |(ix, (range, highlight_id))| {
14277 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14278 style
14279 } else {
14280 return Default::default();
14281 };
14282 let mut muted_style = style;
14283 muted_style.highlight(fade_out);
14284
14285 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14286 if range.start >= label.filter_range.end {
14287 if range.start > prev_end {
14288 runs.push((prev_end..range.start, fade_out));
14289 }
14290 runs.push((range.clone(), muted_style));
14291 } else if range.end <= label.filter_range.end {
14292 runs.push((range.clone(), style));
14293 } else {
14294 runs.push((range.start..label.filter_range.end, style));
14295 runs.push((label.filter_range.end..range.end, muted_style));
14296 }
14297 prev_end = cmp::max(prev_end, range.end);
14298
14299 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14300 runs.push((prev_end..label.text.len(), fade_out));
14301 }
14302
14303 runs
14304 })
14305}
14306
14307pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14308 let mut prev_index = 0;
14309 let mut prev_codepoint: Option<char> = None;
14310 text.char_indices()
14311 .chain([(text.len(), '\0')])
14312 .filter_map(move |(index, codepoint)| {
14313 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14314 let is_boundary = index == text.len()
14315 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14316 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14317 if is_boundary {
14318 let chunk = &text[prev_index..index];
14319 prev_index = index;
14320 Some(chunk)
14321 } else {
14322 None
14323 }
14324 })
14325}
14326
14327pub trait RangeToAnchorExt: Sized {
14328 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14329
14330 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14331 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14332 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14333 }
14334}
14335
14336impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14337 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14338 let start_offset = self.start.to_offset(snapshot);
14339 let end_offset = self.end.to_offset(snapshot);
14340 if start_offset == end_offset {
14341 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14342 } else {
14343 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14344 }
14345 }
14346}
14347
14348pub trait RowExt {
14349 fn as_f32(&self) -> f32;
14350
14351 fn next_row(&self) -> Self;
14352
14353 fn previous_row(&self) -> Self;
14354
14355 fn minus(&self, other: Self) -> u32;
14356}
14357
14358impl RowExt for DisplayRow {
14359 fn as_f32(&self) -> f32 {
14360 self.0 as f32
14361 }
14362
14363 fn next_row(&self) -> Self {
14364 Self(self.0 + 1)
14365 }
14366
14367 fn previous_row(&self) -> Self {
14368 Self(self.0.saturating_sub(1))
14369 }
14370
14371 fn minus(&self, other: Self) -> u32 {
14372 self.0 - other.0
14373 }
14374}
14375
14376impl RowExt for MultiBufferRow {
14377 fn as_f32(&self) -> f32 {
14378 self.0 as f32
14379 }
14380
14381 fn next_row(&self) -> Self {
14382 Self(self.0 + 1)
14383 }
14384
14385 fn previous_row(&self) -> Self {
14386 Self(self.0.saturating_sub(1))
14387 }
14388
14389 fn minus(&self, other: Self) -> u32 {
14390 self.0 - other.0
14391 }
14392}
14393
14394trait RowRangeExt {
14395 type Row;
14396
14397 fn len(&self) -> usize;
14398
14399 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14400}
14401
14402impl RowRangeExt for Range<MultiBufferRow> {
14403 type Row = MultiBufferRow;
14404
14405 fn len(&self) -> usize {
14406 (self.end.0 - self.start.0) as usize
14407 }
14408
14409 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14410 (self.start.0..self.end.0).map(MultiBufferRow)
14411 }
14412}
14413
14414impl RowRangeExt for Range<DisplayRow> {
14415 type Row = DisplayRow;
14416
14417 fn len(&self) -> usize {
14418 (self.end.0 - self.start.0) as usize
14419 }
14420
14421 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14422 (self.start.0..self.end.0).map(DisplayRow)
14423 }
14424}
14425
14426fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14427 if hunk.diff_base_byte_range.is_empty() {
14428 DiffHunkStatus::Added
14429 } else if hunk.row_range.is_empty() {
14430 DiffHunkStatus::Removed
14431 } else {
14432 DiffHunkStatus::Modified
14433 }
14434}
14435
14436/// If select range has more than one line, we
14437/// just point the cursor to range.start.
14438fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14439 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14440 range
14441 } else {
14442 range.start..range.start
14443 }
14444}