1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behavior.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18mod clangd_ext;
19mod debounced_delay;
20pub mod display_map;
21mod editor_settings;
22mod editor_settings_controls;
23mod element;
24mod git;
25mod highlight_matching_bracket;
26mod hover_links;
27mod hover_popover;
28mod hunk_diff;
29mod indent_guides;
30mod inlay_hint_cache;
31mod inline_completion_provider;
32pub mod items;
33mod linked_editing_ranges;
34mod lsp_ext;
35mod mouse_context_menu;
36pub mod movement;
37mod persistence;
38mod proposed_changes_editor;
39mod rust_analyzer_ext;
40pub mod scroll;
41mod selections_collection;
42pub mod tasks;
43
44#[cfg(test)]
45mod editor_tests;
46mod signature_help;
47#[cfg(any(test, feature = "test-support"))]
48pub mod test;
49
50use ::git::diff::DiffHunkStatus;
51pub(crate) use actions::*;
52use aho_corasick::AhoCorasick;
53use anyhow::{anyhow, Context as _, Result};
54use blink_manager::BlinkManager;
55use client::{Collaborator, ParticipantIndex};
56use clock::ReplicaId;
57use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
58use convert_case::{Case, Casing};
59use debounced_delay::DebouncedDelay;
60use display_map::*;
61pub use display_map::{DisplayPoint, FoldPlaceholder};
62pub use editor_settings::{
63 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
64};
65pub use editor_settings_controls::*;
66use element::LineWithInvisibles;
67pub use element::{
68 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
69};
70use futures::{future, FutureExt};
71use fuzzy::{StringMatch, StringMatchCandidate};
72use git::blame::GitBlame;
73use gpui::{
74 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
75 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardEntry,
76 ClipboardItem, Context, DispatchPhase, ElementId, EntityId, EventEmitter, FocusHandle,
77 FocusOutEvent, FocusableView, FontId, FontWeight, HighlightStyle, Hsla, InteractiveText,
78 KeyContext, ListSizingBehavior, Model, MouseButton, PaintQuad, ParentElement, Pixels, Render,
79 SharedString, Size, StrikethroughStyle, Styled, StyledText, Subscription, Task, TextStyle,
80 UTF16Selection, UnderlineStyle, UniformListScrollHandle, View, ViewContext, ViewInputHandler,
81 VisualContext, WeakFocusHandle, WeakView, WindowContext,
82};
83use highlight_matching_bracket::refresh_matching_bracket_highlights;
84use hover_popover::{hide_hover, HoverState};
85pub(crate) use hunk_diff::HoveredHunk;
86use hunk_diff::{diff_hunk_to_display, ExpandedHunks};
87use indent_guides::ActiveIndentGuidesState;
88use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
89pub use inline_completion_provider::*;
90pub use items::MAX_TAB_TITLE_LEN;
91use itertools::Itertools;
92use language::{
93 language_settings::{self, all_language_settings, InlayHintSettings},
94 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
95 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
96 Point, Selection, SelectionGoal, TransactionId,
97};
98use language::{
99 point_to_lsp, BufferRow, CharClassifier, LanguageServerName, Runnable, RunnableRange,
100};
101use linked_editing_ranges::refresh_linked_ranges;
102pub use proposed_changes_editor::{
103 ProposedChangeLocation, ProposedChangesEditor, ProposedChangesEditorToolbar,
104};
105use similar::{ChangeTag, TextDiff};
106use task::{ResolvedTask, TaskTemplate, TaskVariables};
107
108use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
109pub use lsp::CompletionContext;
110use lsp::{
111 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
112 LanguageServerId,
113};
114use mouse_context_menu::MouseContextMenu;
115use movement::TextLayoutDetails;
116pub use multi_buffer::{
117 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
118 ToPoint,
119};
120use multi_buffer::{
121 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
122};
123use ordered_float::OrderedFloat;
124use parking_lot::{Mutex, RwLock};
125use project::{
126 lsp_store::{FormatTarget, FormatTrigger},
127 project_settings::{GitGutterSetting, ProjectSettings},
128 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Item, Location,
129 LocationLink, Project, ProjectPath, ProjectTransaction, TaskSourceKind,
130};
131use rand::prelude::*;
132use rpc::{proto::*, ErrorExt};
133use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
134use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
135use serde::{Deserialize, Serialize};
136use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
137use smallvec::SmallVec;
138use snippet::Snippet;
139use std::{
140 any::TypeId,
141 borrow::Cow,
142 cell::RefCell,
143 cmp::{self, Ordering, Reverse},
144 mem,
145 num::NonZeroU32,
146 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
147 path::{Path, PathBuf},
148 rc::Rc,
149 sync::Arc,
150 time::{Duration, Instant},
151};
152pub use sum_tree::Bias;
153use sum_tree::TreeMap;
154use text::{BufferId, OffsetUtf16, Rope};
155use theme::{
156 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
157 ThemeColors, ThemeSettings,
158};
159use ui::{
160 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
161 ListItem, Popover, PopoverMenuHandle, Tooltip,
162};
163use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
164use workspace::item::{ItemHandle, PreviewTabsSettings};
165use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
166use workspace::{
167 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
168};
169use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
170
171use crate::hover_links::find_url;
172use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
173
174pub const FILE_HEADER_HEIGHT: u32 = 1;
175pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
176pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
177pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
178const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
179const MAX_LINE_LEN: usize = 1024;
180const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
181const MAX_SELECTION_HISTORY_LEN: usize = 1024;
182pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
183#[doc(hidden)]
184pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
185#[doc(hidden)]
186pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
187
188pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
189pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
190
191pub fn render_parsed_markdown(
192 element_id: impl Into<ElementId>,
193 parsed: &language::ParsedMarkdown,
194 editor_style: &EditorStyle,
195 workspace: Option<WeakView<Workspace>>,
196 cx: &mut WindowContext,
197) -> InteractiveText {
198 let code_span_background_color = cx
199 .theme()
200 .colors()
201 .editor_document_highlight_read_background;
202
203 let highlights = gpui::combine_highlights(
204 parsed.highlights.iter().filter_map(|(range, highlight)| {
205 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
206 Some((range.clone(), highlight))
207 }),
208 parsed
209 .regions
210 .iter()
211 .zip(&parsed.region_ranges)
212 .filter_map(|(region, range)| {
213 if region.code {
214 Some((
215 range.clone(),
216 HighlightStyle {
217 background_color: Some(code_span_background_color),
218 ..Default::default()
219 },
220 ))
221 } else {
222 None
223 }
224 }),
225 );
226
227 let mut links = Vec::new();
228 let mut link_ranges = Vec::new();
229 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
230 if let Some(link) = region.link.clone() {
231 links.push(link);
232 link_ranges.push(range.clone());
233 }
234 }
235
236 InteractiveText::new(
237 element_id,
238 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
239 )
240 .on_click(link_ranges, move |clicked_range_ix, cx| {
241 match &links[clicked_range_ix] {
242 markdown::Link::Web { url } => cx.open_url(url),
243 markdown::Link::Path { path } => {
244 if let Some(workspace) = &workspace {
245 _ = workspace.update(cx, |workspace, cx| {
246 workspace.open_abs_path(path.clone(), false, cx).detach();
247 });
248 }
249 }
250 }
251 })
252}
253
254#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
255pub(crate) enum InlayId {
256 Suggestion(usize),
257 Hint(usize),
258}
259
260impl InlayId {
261 fn id(&self) -> usize {
262 match self {
263 Self::Suggestion(id) => *id,
264 Self::Hint(id) => *id,
265 }
266 }
267}
268
269enum DiffRowHighlight {}
270enum DocumentHighlightRead {}
271enum DocumentHighlightWrite {}
272enum InputComposition {}
273
274#[derive(Copy, Clone, PartialEq, Eq)]
275pub enum Direction {
276 Prev,
277 Next,
278}
279
280#[derive(Debug, Copy, Clone, PartialEq, Eq)]
281pub enum Navigated {
282 Yes,
283 No,
284}
285
286impl Navigated {
287 pub fn from_bool(yes: bool) -> Navigated {
288 if yes {
289 Navigated::Yes
290 } else {
291 Navigated::No
292 }
293 }
294}
295
296pub fn init_settings(cx: &mut AppContext) {
297 EditorSettings::register(cx);
298}
299
300pub fn init(cx: &mut AppContext) {
301 init_settings(cx);
302
303 workspace::register_project_item::<Editor>(cx);
304 workspace::FollowableViewRegistry::register::<Editor>(cx);
305 workspace::register_serializable_item::<Editor>(cx);
306
307 cx.observe_new_views(
308 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
309 workspace.register_action(Editor::new_file);
310 workspace.register_action(Editor::new_file_vertical);
311 workspace.register_action(Editor::new_file_horizontal);
312 },
313 )
314 .detach();
315
316 cx.on_action(move |_: &workspace::NewFile, cx| {
317 let app_state = workspace::AppState::global(cx);
318 if let Some(app_state) = app_state.upgrade() {
319 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
320 Editor::new_file(workspace, &Default::default(), cx)
321 })
322 .detach();
323 }
324 });
325 cx.on_action(move |_: &workspace::NewWindow, cx| {
326 let app_state = workspace::AppState::global(cx);
327 if let Some(app_state) = app_state.upgrade() {
328 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
329 Editor::new_file(workspace, &Default::default(), cx)
330 })
331 .detach();
332 }
333 });
334}
335
336pub struct SearchWithinRange;
337
338trait InvalidationRegion {
339 fn ranges(&self) -> &[Range<Anchor>];
340}
341
342#[derive(Clone, Debug, PartialEq)]
343pub enum SelectPhase {
344 Begin {
345 position: DisplayPoint,
346 add: bool,
347 click_count: usize,
348 },
349 BeginColumnar {
350 position: DisplayPoint,
351 reset: bool,
352 goal_column: u32,
353 },
354 Extend {
355 position: DisplayPoint,
356 click_count: usize,
357 },
358 Update {
359 position: DisplayPoint,
360 goal_column: u32,
361 scroll_delta: gpui::Point<f32>,
362 },
363 End,
364}
365
366#[derive(Clone, Debug)]
367pub enum SelectMode {
368 Character,
369 Word(Range<Anchor>),
370 Line(Range<Anchor>),
371 All,
372}
373
374#[derive(Copy, Clone, PartialEq, Eq, Debug)]
375pub enum EditorMode {
376 SingleLine { auto_width: bool },
377 AutoHeight { max_lines: usize },
378 Full,
379}
380
381#[derive(Copy, Clone, Debug)]
382pub enum SoftWrap {
383 /// Prefer not to wrap at all.
384 ///
385 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
386 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
387 GitDiff,
388 /// Prefer a single line generally, unless an overly long line is encountered.
389 None,
390 /// Soft wrap lines that exceed the editor width.
391 EditorWidth,
392 /// Soft wrap lines at the preferred line length.
393 Column(u32),
394 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
395 Bounded(u32),
396}
397
398#[derive(Clone)]
399pub struct EditorStyle {
400 pub background: Hsla,
401 pub local_player: PlayerColor,
402 pub text: TextStyle,
403 pub scrollbar_width: Pixels,
404 pub syntax: Arc<SyntaxTheme>,
405 pub status: StatusColors,
406 pub inlay_hints_style: HighlightStyle,
407 pub suggestions_style: HighlightStyle,
408 pub unnecessary_code_fade: f32,
409}
410
411impl Default for EditorStyle {
412 fn default() -> Self {
413 Self {
414 background: Hsla::default(),
415 local_player: PlayerColor::default(),
416 text: TextStyle::default(),
417 scrollbar_width: Pixels::default(),
418 syntax: Default::default(),
419 // HACK: Status colors don't have a real default.
420 // We should look into removing the status colors from the editor
421 // style and retrieve them directly from the theme.
422 status: StatusColors::dark(),
423 inlay_hints_style: HighlightStyle::default(),
424 suggestions_style: HighlightStyle::default(),
425 unnecessary_code_fade: Default::default(),
426 }
427 }
428}
429
430pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
431 let show_background = all_language_settings(None, cx)
432 .language(None)
433 .inlay_hints
434 .show_background;
435
436 HighlightStyle {
437 color: Some(cx.theme().status().hint),
438 background_color: show_background.then(|| cx.theme().status().hint_background),
439 ..HighlightStyle::default()
440 }
441}
442
443type CompletionId = usize;
444
445#[derive(Clone, Debug)]
446struct CompletionState {
447 // render_inlay_ids represents the inlay hints that are inserted
448 // for rendering the inline completions. They may be discontinuous
449 // in the event that the completion provider returns some intersection
450 // with the existing content.
451 render_inlay_ids: Vec<InlayId>,
452 // text is the resulting rope that is inserted when the user accepts a completion.
453 text: Rope,
454 // position is the position of the cursor when the completion was triggered.
455 position: multi_buffer::Anchor,
456 // delete_range is the range of text that this completion state covers.
457 // if the completion is accepted, this range should be deleted.
458 delete_range: Option<Range<multi_buffer::Anchor>>,
459}
460
461#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
462struct EditorActionId(usize);
463
464impl EditorActionId {
465 pub fn post_inc(&mut self) -> Self {
466 let answer = self.0;
467
468 *self = Self(answer + 1);
469
470 Self(answer)
471 }
472}
473
474// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
475// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
476
477type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
478type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
479
480#[derive(Default)]
481struct ScrollbarMarkerState {
482 scrollbar_size: Size<Pixels>,
483 dirty: bool,
484 markers: Arc<[PaintQuad]>,
485 pending_refresh: Option<Task<Result<()>>>,
486}
487
488impl ScrollbarMarkerState {
489 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
490 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
491 }
492}
493
494#[derive(Clone, Debug)]
495struct RunnableTasks {
496 templates: Vec<(TaskSourceKind, TaskTemplate)>,
497 offset: MultiBufferOffset,
498 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
499 column: u32,
500 // Values of all named captures, including those starting with '_'
501 extra_variables: HashMap<String, String>,
502 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
503 context_range: Range<BufferOffset>,
504}
505
506#[derive(Clone)]
507struct ResolvedTasks {
508 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
509 position: Anchor,
510}
511#[derive(Copy, Clone, Debug)]
512struct MultiBufferOffset(usize);
513#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
514struct BufferOffset(usize);
515
516// Addons allow storing per-editor state in other crates (e.g. Vim)
517pub trait Addon: 'static {
518 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
519
520 fn to_any(&self) -> &dyn std::any::Any;
521}
522
523/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
524///
525/// See the [module level documentation](self) for more information.
526pub struct Editor {
527 focus_handle: FocusHandle,
528 last_focused_descendant: Option<WeakFocusHandle>,
529 /// The text buffer being edited
530 buffer: Model<MultiBuffer>,
531 /// Map of how text in the buffer should be displayed.
532 /// Handles soft wraps, folds, fake inlay text insertions, etc.
533 pub display_map: Model<DisplayMap>,
534 pub selections: SelectionsCollection,
535 pub scroll_manager: ScrollManager,
536 /// When inline assist editors are linked, they all render cursors because
537 /// typing enters text into each of them, even the ones that aren't focused.
538 pub(crate) show_cursor_when_unfocused: bool,
539 columnar_selection_tail: Option<Anchor>,
540 add_selections_state: Option<AddSelectionsState>,
541 select_next_state: Option<SelectNextState>,
542 select_prev_state: Option<SelectNextState>,
543 selection_history: SelectionHistory,
544 autoclose_regions: Vec<AutocloseRegion>,
545 snippet_stack: InvalidationStack<SnippetState>,
546 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
547 ime_transaction: Option<TransactionId>,
548 active_diagnostics: Option<ActiveDiagnosticGroup>,
549 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
550 project: Option<Model<Project>>,
551 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
552 completion_provider: Option<Box<dyn CompletionProvider>>,
553 collaboration_hub: Option<Box<dyn CollaborationHub>>,
554 blink_manager: Model<BlinkManager>,
555 show_cursor_names: bool,
556 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
557 pub show_local_selections: bool,
558 mode: EditorMode,
559 show_breadcrumbs: bool,
560 show_gutter: bool,
561 show_line_numbers: Option<bool>,
562 use_relative_line_numbers: Option<bool>,
563 show_git_diff_gutter: Option<bool>,
564 show_code_actions: Option<bool>,
565 show_runnables: Option<bool>,
566 show_wrap_guides: Option<bool>,
567 show_indent_guides: Option<bool>,
568 placeholder_text: Option<Arc<str>>,
569 highlight_order: usize,
570 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
571 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
572 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
573 scrollbar_marker_state: ScrollbarMarkerState,
574 active_indent_guides_state: ActiveIndentGuidesState,
575 nav_history: Option<ItemNavHistory>,
576 context_menu: RwLock<Option<ContextMenu>>,
577 mouse_context_menu: Option<MouseContextMenu>,
578 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
579 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
580 signature_help_state: SignatureHelpState,
581 auto_signature_help: Option<bool>,
582 find_all_references_task_sources: Vec<Anchor>,
583 next_completion_id: CompletionId,
584 completion_documentation_pre_resolve_debounce: DebouncedDelay,
585 available_code_actions: Option<(Location, Arc<[AvailableCodeAction]>)>,
586 code_actions_task: Option<Task<Result<()>>>,
587 document_highlights_task: Option<Task<()>>,
588 linked_editing_range_task: Option<Task<Option<()>>>,
589 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
590 pending_rename: Option<RenameState>,
591 searchable: bool,
592 cursor_shape: CursorShape,
593 current_line_highlight: Option<CurrentLineHighlight>,
594 collapse_matches: bool,
595 autoindent_mode: Option<AutoindentMode>,
596 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
597 input_enabled: bool,
598 use_modal_editing: bool,
599 read_only: bool,
600 leader_peer_id: Option<PeerId>,
601 remote_id: Option<ViewId>,
602 hover_state: HoverState,
603 gutter_hovered: bool,
604 hovered_link_state: Option<HoveredLinkState>,
605 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
606 code_action_providers: Vec<Arc<dyn CodeActionProvider>>,
607 active_inline_completion: Option<CompletionState>,
608 // enable_inline_completions is a switch that Vim can use to disable
609 // inline completions based on its mode.
610 enable_inline_completions: bool,
611 show_inline_completions_override: Option<bool>,
612 inlay_hint_cache: InlayHintCache,
613 expanded_hunks: ExpandedHunks,
614 next_inlay_id: usize,
615 _subscriptions: Vec<Subscription>,
616 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
617 gutter_dimensions: GutterDimensions,
618 style: Option<EditorStyle>,
619 next_editor_action_id: EditorActionId,
620 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
621 use_autoclose: bool,
622 use_auto_surround: bool,
623 auto_replace_emoji_shortcode: bool,
624 show_git_blame_gutter: bool,
625 show_git_blame_inline: bool,
626 show_git_blame_inline_delay_task: Option<Task<()>>,
627 git_blame_inline_enabled: bool,
628 serialize_dirty_buffers: bool,
629 show_selection_menu: Option<bool>,
630 blame: Option<Model<GitBlame>>,
631 blame_subscription: Option<Subscription>,
632 custom_context_menu: Option<
633 Box<
634 dyn 'static
635 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
636 >,
637 >,
638 last_bounds: Option<Bounds<Pixels>>,
639 expect_bounds_change: Option<Bounds<Pixels>>,
640 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
641 tasks_update_task: Option<Task<()>>,
642 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
643 file_header_size: u32,
644 breadcrumb_header: Option<String>,
645 focused_block: Option<FocusedBlock>,
646 next_scroll_position: NextScrollCursorCenterTopBottom,
647 addons: HashMap<TypeId, Box<dyn Addon>>,
648 _scroll_cursor_center_top_bottom_task: Task<()>,
649}
650
651#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
652enum NextScrollCursorCenterTopBottom {
653 #[default]
654 Center,
655 Top,
656 Bottom,
657}
658
659impl NextScrollCursorCenterTopBottom {
660 fn next(&self) -> Self {
661 match self {
662 Self::Center => Self::Top,
663 Self::Top => Self::Bottom,
664 Self::Bottom => Self::Center,
665 }
666 }
667}
668
669#[derive(Clone)]
670pub struct EditorSnapshot {
671 pub mode: EditorMode,
672 show_gutter: bool,
673 show_line_numbers: Option<bool>,
674 show_git_diff_gutter: Option<bool>,
675 show_code_actions: Option<bool>,
676 show_runnables: Option<bool>,
677 git_blame_gutter_max_author_length: Option<usize>,
678 pub display_snapshot: DisplaySnapshot,
679 pub placeholder_text: Option<Arc<str>>,
680 is_focused: bool,
681 scroll_anchor: ScrollAnchor,
682 ongoing_scroll: OngoingScroll,
683 current_line_highlight: CurrentLineHighlight,
684 gutter_hovered: bool,
685}
686
687const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
688
689#[derive(Default, Debug, Clone, Copy)]
690pub struct GutterDimensions {
691 pub left_padding: Pixels,
692 pub right_padding: Pixels,
693 pub width: Pixels,
694 pub margin: Pixels,
695 pub git_blame_entries_width: Option<Pixels>,
696}
697
698impl GutterDimensions {
699 /// The full width of the space taken up by the gutter.
700 pub fn full_width(&self) -> Pixels {
701 self.margin + self.width
702 }
703
704 /// The width of the space reserved for the fold indicators,
705 /// use alongside 'justify_end' and `gutter_width` to
706 /// right align content with the line numbers
707 pub fn fold_area_width(&self) -> Pixels {
708 self.margin + self.right_padding
709 }
710}
711
712#[derive(Debug)]
713pub struct RemoteSelection {
714 pub replica_id: ReplicaId,
715 pub selection: Selection<Anchor>,
716 pub cursor_shape: CursorShape,
717 pub peer_id: PeerId,
718 pub line_mode: bool,
719 pub participant_index: Option<ParticipantIndex>,
720 pub user_name: Option<SharedString>,
721}
722
723#[derive(Clone, Debug)]
724struct SelectionHistoryEntry {
725 selections: Arc<[Selection<Anchor>]>,
726 select_next_state: Option<SelectNextState>,
727 select_prev_state: Option<SelectNextState>,
728 add_selections_state: Option<AddSelectionsState>,
729}
730
731enum SelectionHistoryMode {
732 Normal,
733 Undoing,
734 Redoing,
735}
736
737#[derive(Clone, PartialEq, Eq, Hash)]
738struct HoveredCursor {
739 replica_id: u16,
740 selection_id: usize,
741}
742
743impl Default for SelectionHistoryMode {
744 fn default() -> Self {
745 Self::Normal
746 }
747}
748
749#[derive(Default)]
750struct SelectionHistory {
751 #[allow(clippy::type_complexity)]
752 selections_by_transaction:
753 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
754 mode: SelectionHistoryMode,
755 undo_stack: VecDeque<SelectionHistoryEntry>,
756 redo_stack: VecDeque<SelectionHistoryEntry>,
757}
758
759impl SelectionHistory {
760 fn insert_transaction(
761 &mut self,
762 transaction_id: TransactionId,
763 selections: Arc<[Selection<Anchor>]>,
764 ) {
765 self.selections_by_transaction
766 .insert(transaction_id, (selections, None));
767 }
768
769 #[allow(clippy::type_complexity)]
770 fn transaction(
771 &self,
772 transaction_id: TransactionId,
773 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
774 self.selections_by_transaction.get(&transaction_id)
775 }
776
777 #[allow(clippy::type_complexity)]
778 fn transaction_mut(
779 &mut self,
780 transaction_id: TransactionId,
781 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
782 self.selections_by_transaction.get_mut(&transaction_id)
783 }
784
785 fn push(&mut self, entry: SelectionHistoryEntry) {
786 if !entry.selections.is_empty() {
787 match self.mode {
788 SelectionHistoryMode::Normal => {
789 self.push_undo(entry);
790 self.redo_stack.clear();
791 }
792 SelectionHistoryMode::Undoing => self.push_redo(entry),
793 SelectionHistoryMode::Redoing => self.push_undo(entry),
794 }
795 }
796 }
797
798 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
799 if self
800 .undo_stack
801 .back()
802 .map_or(true, |e| e.selections != entry.selections)
803 {
804 self.undo_stack.push_back(entry);
805 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
806 self.undo_stack.pop_front();
807 }
808 }
809 }
810
811 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
812 if self
813 .redo_stack
814 .back()
815 .map_or(true, |e| e.selections != entry.selections)
816 {
817 self.redo_stack.push_back(entry);
818 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
819 self.redo_stack.pop_front();
820 }
821 }
822 }
823}
824
825struct RowHighlight {
826 index: usize,
827 range: Range<Anchor>,
828 color: Hsla,
829 should_autoscroll: bool,
830}
831
832#[derive(Clone, Debug)]
833struct AddSelectionsState {
834 above: bool,
835 stack: Vec<usize>,
836}
837
838#[derive(Clone)]
839struct SelectNextState {
840 query: AhoCorasick,
841 wordwise: bool,
842 done: bool,
843}
844
845impl std::fmt::Debug for SelectNextState {
846 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
847 f.debug_struct(std::any::type_name::<Self>())
848 .field("wordwise", &self.wordwise)
849 .field("done", &self.done)
850 .finish()
851 }
852}
853
854#[derive(Debug)]
855struct AutocloseRegion {
856 selection_id: usize,
857 range: Range<Anchor>,
858 pair: BracketPair,
859}
860
861#[derive(Debug)]
862struct SnippetState {
863 ranges: Vec<Vec<Range<Anchor>>>,
864 active_index: usize,
865}
866
867#[doc(hidden)]
868pub struct RenameState {
869 pub range: Range<Anchor>,
870 pub old_name: Arc<str>,
871 pub editor: View<Editor>,
872 block_id: CustomBlockId,
873}
874
875struct InvalidationStack<T>(Vec<T>);
876
877struct RegisteredInlineCompletionProvider {
878 provider: Arc<dyn InlineCompletionProviderHandle>,
879 _subscription: Subscription,
880}
881
882enum ContextMenu {
883 Completions(CompletionsMenu),
884 CodeActions(CodeActionsMenu),
885}
886
887impl ContextMenu {
888 fn select_first(
889 &mut self,
890 provider: Option<&dyn CompletionProvider>,
891 cx: &mut ViewContext<Editor>,
892 ) -> bool {
893 if self.visible() {
894 match self {
895 ContextMenu::Completions(menu) => menu.select_first(provider, cx),
896 ContextMenu::CodeActions(menu) => menu.select_first(cx),
897 }
898 true
899 } else {
900 false
901 }
902 }
903
904 fn select_prev(
905 &mut self,
906 provider: Option<&dyn CompletionProvider>,
907 cx: &mut ViewContext<Editor>,
908 ) -> bool {
909 if self.visible() {
910 match self {
911 ContextMenu::Completions(menu) => menu.select_prev(provider, cx),
912 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
913 }
914 true
915 } else {
916 false
917 }
918 }
919
920 fn select_next(
921 &mut self,
922 provider: Option<&dyn CompletionProvider>,
923 cx: &mut ViewContext<Editor>,
924 ) -> bool {
925 if self.visible() {
926 match self {
927 ContextMenu::Completions(menu) => menu.select_next(provider, cx),
928 ContextMenu::CodeActions(menu) => menu.select_next(cx),
929 }
930 true
931 } else {
932 false
933 }
934 }
935
936 fn select_last(
937 &mut self,
938 provider: Option<&dyn CompletionProvider>,
939 cx: &mut ViewContext<Editor>,
940 ) -> bool {
941 if self.visible() {
942 match self {
943 ContextMenu::Completions(menu) => menu.select_last(provider, cx),
944 ContextMenu::CodeActions(menu) => menu.select_last(cx),
945 }
946 true
947 } else {
948 false
949 }
950 }
951
952 fn visible(&self) -> bool {
953 match self {
954 ContextMenu::Completions(menu) => menu.visible(),
955 ContextMenu::CodeActions(menu) => menu.visible(),
956 }
957 }
958
959 fn render(
960 &self,
961 cursor_position: DisplayPoint,
962 style: &EditorStyle,
963 max_height: Pixels,
964 workspace: Option<WeakView<Workspace>>,
965 cx: &mut ViewContext<Editor>,
966 ) -> (ContextMenuOrigin, AnyElement) {
967 match self {
968 ContextMenu::Completions(menu) => (
969 ContextMenuOrigin::EditorPoint(cursor_position),
970 menu.render(style, max_height, workspace, cx),
971 ),
972 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
973 }
974 }
975}
976
977enum ContextMenuOrigin {
978 EditorPoint(DisplayPoint),
979 GutterIndicator(DisplayRow),
980}
981
982#[derive(Clone)]
983struct CompletionsMenu {
984 id: CompletionId,
985 sort_completions: bool,
986 initial_position: Anchor,
987 buffer: Model<Buffer>,
988 completions: Arc<RwLock<Box<[Completion]>>>,
989 match_candidates: Arc<[StringMatchCandidate]>,
990 matches: Arc<[StringMatch]>,
991 selected_item: usize,
992 scroll_handle: UniformListScrollHandle,
993 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
994}
995
996impl CompletionsMenu {
997 fn select_first(
998 &mut self,
999 provider: Option<&dyn CompletionProvider>,
1000 cx: &mut ViewContext<Editor>,
1001 ) {
1002 self.selected_item = 0;
1003 self.scroll_handle.scroll_to_item(self.selected_item);
1004 self.attempt_resolve_selected_completion_documentation(provider, cx);
1005 cx.notify();
1006 }
1007
1008 fn select_prev(
1009 &mut self,
1010 provider: Option<&dyn CompletionProvider>,
1011 cx: &mut ViewContext<Editor>,
1012 ) {
1013 if self.selected_item > 0 {
1014 self.selected_item -= 1;
1015 } else {
1016 self.selected_item = self.matches.len() - 1;
1017 }
1018 self.scroll_handle.scroll_to_item(self.selected_item);
1019 self.attempt_resolve_selected_completion_documentation(provider, cx);
1020 cx.notify();
1021 }
1022
1023 fn select_next(
1024 &mut self,
1025 provider: Option<&dyn CompletionProvider>,
1026 cx: &mut ViewContext<Editor>,
1027 ) {
1028 if self.selected_item + 1 < self.matches.len() {
1029 self.selected_item += 1;
1030 } else {
1031 self.selected_item = 0;
1032 }
1033 self.scroll_handle.scroll_to_item(self.selected_item);
1034 self.attempt_resolve_selected_completion_documentation(provider, cx);
1035 cx.notify();
1036 }
1037
1038 fn select_last(
1039 &mut self,
1040 provider: Option<&dyn CompletionProvider>,
1041 cx: &mut ViewContext<Editor>,
1042 ) {
1043 self.selected_item = self.matches.len() - 1;
1044 self.scroll_handle.scroll_to_item(self.selected_item);
1045 self.attempt_resolve_selected_completion_documentation(provider, cx);
1046 cx.notify();
1047 }
1048
1049 fn pre_resolve_completion_documentation(
1050 buffer: Model<Buffer>,
1051 completions: Arc<RwLock<Box<[Completion]>>>,
1052 matches: Arc<[StringMatch]>,
1053 editor: &Editor,
1054 cx: &mut ViewContext<Editor>,
1055 ) -> Task<()> {
1056 let settings = EditorSettings::get_global(cx);
1057 if !settings.show_completion_documentation {
1058 return Task::ready(());
1059 }
1060
1061 let Some(provider) = editor.completion_provider.as_ref() else {
1062 return Task::ready(());
1063 };
1064
1065 let resolve_task = provider.resolve_completions(
1066 buffer,
1067 matches.iter().map(|m| m.candidate_id).collect(),
1068 completions.clone(),
1069 cx,
1070 );
1071
1072 cx.spawn(move |this, mut cx| async move {
1073 if let Some(true) = resolve_task.await.log_err() {
1074 this.update(&mut cx, |_, cx| cx.notify()).ok();
1075 }
1076 })
1077 }
1078
1079 fn attempt_resolve_selected_completion_documentation(
1080 &mut self,
1081 provider: Option<&dyn CompletionProvider>,
1082 cx: &mut ViewContext<Editor>,
1083 ) {
1084 let settings = EditorSettings::get_global(cx);
1085 if !settings.show_completion_documentation {
1086 return;
1087 }
1088
1089 let completion_index = self.matches[self.selected_item].candidate_id;
1090 let Some(provider) = provider else {
1091 return;
1092 };
1093
1094 let resolve_task = provider.resolve_completions(
1095 self.buffer.clone(),
1096 vec![completion_index],
1097 self.completions.clone(),
1098 cx,
1099 );
1100
1101 let delay_ms =
1102 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1103 let delay = Duration::from_millis(delay_ms);
1104
1105 self.selected_completion_documentation_resolve_debounce
1106 .lock()
1107 .fire_new(delay, cx, |_, cx| {
1108 cx.spawn(move |this, mut cx| async move {
1109 if let Some(true) = resolve_task.await.log_err() {
1110 this.update(&mut cx, |_, cx| cx.notify()).ok();
1111 }
1112 })
1113 });
1114 }
1115
1116 fn visible(&self) -> bool {
1117 !self.matches.is_empty()
1118 }
1119
1120 fn render(
1121 &self,
1122 style: &EditorStyle,
1123 max_height: Pixels,
1124 workspace: Option<WeakView<Workspace>>,
1125 cx: &mut ViewContext<Editor>,
1126 ) -> AnyElement {
1127 let settings = EditorSettings::get_global(cx);
1128 let show_completion_documentation = settings.show_completion_documentation;
1129
1130 let widest_completion_ix = self
1131 .matches
1132 .iter()
1133 .enumerate()
1134 .max_by_key(|(_, mat)| {
1135 let completions = self.completions.read();
1136 let completion = &completions[mat.candidate_id];
1137 let documentation = &completion.documentation;
1138
1139 let mut len = completion.label.text.chars().count();
1140 if let Some(Documentation::SingleLine(text)) = documentation {
1141 if show_completion_documentation {
1142 len += text.chars().count();
1143 }
1144 }
1145
1146 len
1147 })
1148 .map(|(ix, _)| ix);
1149
1150 let completions = self.completions.clone();
1151 let matches = self.matches.clone();
1152 let selected_item = self.selected_item;
1153 let style = style.clone();
1154
1155 let multiline_docs = if show_completion_documentation {
1156 let mat = &self.matches[selected_item];
1157 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1158 Some(Documentation::MultiLinePlainText(text)) => {
1159 Some(div().child(SharedString::from(text.clone())))
1160 }
1161 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1162 Some(div().child(render_parsed_markdown(
1163 "completions_markdown",
1164 parsed,
1165 &style,
1166 workspace,
1167 cx,
1168 )))
1169 }
1170 _ => None,
1171 };
1172 multiline_docs.map(|div| {
1173 div.id("multiline_docs")
1174 .max_h(max_height)
1175 .flex_1()
1176 .px_1p5()
1177 .py_1()
1178 .min_w(px(260.))
1179 .max_w(px(640.))
1180 .w(px(500.))
1181 .overflow_y_scroll()
1182 .occlude()
1183 })
1184 } else {
1185 None
1186 };
1187
1188 let list = uniform_list(
1189 cx.view().clone(),
1190 "completions",
1191 matches.len(),
1192 move |_editor, range, cx| {
1193 let start_ix = range.start;
1194 let completions_guard = completions.read();
1195
1196 matches[range]
1197 .iter()
1198 .enumerate()
1199 .map(|(ix, mat)| {
1200 let item_ix = start_ix + ix;
1201 let candidate_id = mat.candidate_id;
1202 let completion = &completions_guard[candidate_id];
1203
1204 let documentation = if show_completion_documentation {
1205 &completion.documentation
1206 } else {
1207 &None
1208 };
1209
1210 let highlights = gpui::combine_highlights(
1211 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1212 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1213 |(range, mut highlight)| {
1214 // Ignore font weight for syntax highlighting, as we'll use it
1215 // for fuzzy matches.
1216 highlight.font_weight = None;
1217
1218 if completion.lsp_completion.deprecated.unwrap_or(false) {
1219 highlight.strikethrough = Some(StrikethroughStyle {
1220 thickness: 1.0.into(),
1221 ..Default::default()
1222 });
1223 highlight.color = Some(cx.theme().colors().text_muted);
1224 }
1225
1226 (range, highlight)
1227 },
1228 ),
1229 );
1230 let completion_label = StyledText::new(completion.label.text.clone())
1231 .with_highlights(&style.text, highlights);
1232 let documentation_label =
1233 if let Some(Documentation::SingleLine(text)) = documentation {
1234 if text.trim().is_empty() {
1235 None
1236 } else {
1237 Some(
1238 Label::new(text.clone())
1239 .ml_4()
1240 .size(LabelSize::Small)
1241 .color(Color::Muted),
1242 )
1243 }
1244 } else {
1245 None
1246 };
1247
1248 let color_swatch = completion
1249 .color()
1250 .map(|color| div().size_4().bg(color).rounded_sm());
1251
1252 div().min_w(px(220.)).max_w(px(540.)).child(
1253 ListItem::new(mat.candidate_id)
1254 .inset(true)
1255 .selected(item_ix == selected_item)
1256 .on_click(cx.listener(move |editor, _event, cx| {
1257 cx.stop_propagation();
1258 if let Some(task) = editor.confirm_completion(
1259 &ConfirmCompletion {
1260 item_ix: Some(item_ix),
1261 },
1262 cx,
1263 ) {
1264 task.detach_and_log_err(cx)
1265 }
1266 }))
1267 .start_slot::<Div>(color_swatch)
1268 .child(h_flex().overflow_hidden().child(completion_label))
1269 .end_slot::<Label>(documentation_label),
1270 )
1271 })
1272 .collect()
1273 },
1274 )
1275 .occlude()
1276 .max_h(max_height)
1277 .track_scroll(self.scroll_handle.clone())
1278 .with_width_from_item(widest_completion_ix)
1279 .with_sizing_behavior(ListSizingBehavior::Infer);
1280
1281 Popover::new()
1282 .child(list)
1283 .when_some(multiline_docs, |popover, multiline_docs| {
1284 popover.aside(multiline_docs)
1285 })
1286 .into_any_element()
1287 }
1288
1289 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1290 let mut matches = if let Some(query) = query {
1291 fuzzy::match_strings(
1292 &self.match_candidates,
1293 query,
1294 query.chars().any(|c| c.is_uppercase()),
1295 100,
1296 &Default::default(),
1297 executor,
1298 )
1299 .await
1300 } else {
1301 self.match_candidates
1302 .iter()
1303 .enumerate()
1304 .map(|(candidate_id, candidate)| StringMatch {
1305 candidate_id,
1306 score: Default::default(),
1307 positions: Default::default(),
1308 string: candidate.string.clone(),
1309 })
1310 .collect()
1311 };
1312
1313 // Remove all candidates where the query's start does not match the start of any word in the candidate
1314 if let Some(query) = query {
1315 if let Some(query_start) = query.chars().next() {
1316 matches.retain(|string_match| {
1317 split_words(&string_match.string).any(|word| {
1318 // Check that the first codepoint of the word as lowercase matches the first
1319 // codepoint of the query as lowercase
1320 word.chars()
1321 .flat_map(|codepoint| codepoint.to_lowercase())
1322 .zip(query_start.to_lowercase())
1323 .all(|(word_cp, query_cp)| word_cp == query_cp)
1324 })
1325 });
1326 }
1327 }
1328
1329 let completions = self.completions.read();
1330 if self.sort_completions {
1331 matches.sort_unstable_by_key(|mat| {
1332 // We do want to strike a balance here between what the language server tells us
1333 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1334 // `Creat` and there is a local variable called `CreateComponent`).
1335 // So what we do is: we bucket all matches into two buckets
1336 // - Strong matches
1337 // - Weak matches
1338 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1339 // and the Weak matches are the rest.
1340 //
1341 // For the strong matches, we sort by the language-servers score first and for the weak
1342 // matches, we prefer our fuzzy finder first.
1343 //
1344 // The thinking behind that: it's useless to take the sort_text the language-server gives
1345 // us into account when it's obviously a bad match.
1346
1347 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1348 enum MatchScore<'a> {
1349 Strong {
1350 sort_text: Option<&'a str>,
1351 score: Reverse<OrderedFloat<f64>>,
1352 sort_key: (usize, &'a str),
1353 },
1354 Weak {
1355 score: Reverse<OrderedFloat<f64>>,
1356 sort_text: Option<&'a str>,
1357 sort_key: (usize, &'a str),
1358 },
1359 }
1360
1361 let completion = &completions[mat.candidate_id];
1362 let sort_key = completion.sort_key();
1363 let sort_text = completion.lsp_completion.sort_text.as_deref();
1364 let score = Reverse(OrderedFloat(mat.score));
1365
1366 if mat.score >= 0.2 {
1367 MatchScore::Strong {
1368 sort_text,
1369 score,
1370 sort_key,
1371 }
1372 } else {
1373 MatchScore::Weak {
1374 score,
1375 sort_text,
1376 sort_key,
1377 }
1378 }
1379 });
1380 }
1381
1382 for mat in &mut matches {
1383 let completion = &completions[mat.candidate_id];
1384 mat.string.clone_from(&completion.label.text);
1385 for position in &mut mat.positions {
1386 *position += completion.label.filter_range.start;
1387 }
1388 }
1389 drop(completions);
1390
1391 self.matches = matches.into();
1392 self.selected_item = 0;
1393 }
1394}
1395
1396struct AvailableCodeAction {
1397 excerpt_id: ExcerptId,
1398 action: CodeAction,
1399 provider: Arc<dyn CodeActionProvider>,
1400}
1401
1402#[derive(Clone)]
1403struct CodeActionContents {
1404 tasks: Option<Arc<ResolvedTasks>>,
1405 actions: Option<Arc<[AvailableCodeAction]>>,
1406}
1407
1408impl CodeActionContents {
1409 fn len(&self) -> usize {
1410 match (&self.tasks, &self.actions) {
1411 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1412 (Some(tasks), None) => tasks.templates.len(),
1413 (None, Some(actions)) => actions.len(),
1414 (None, None) => 0,
1415 }
1416 }
1417
1418 fn is_empty(&self) -> bool {
1419 match (&self.tasks, &self.actions) {
1420 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1421 (Some(tasks), None) => tasks.templates.is_empty(),
1422 (None, Some(actions)) => actions.is_empty(),
1423 (None, None) => true,
1424 }
1425 }
1426
1427 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1428 self.tasks
1429 .iter()
1430 .flat_map(|tasks| {
1431 tasks
1432 .templates
1433 .iter()
1434 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1435 })
1436 .chain(self.actions.iter().flat_map(|actions| {
1437 actions.iter().map(|available| CodeActionsItem::CodeAction {
1438 excerpt_id: available.excerpt_id,
1439 action: available.action.clone(),
1440 provider: available.provider.clone(),
1441 })
1442 }))
1443 }
1444 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1445 match (&self.tasks, &self.actions) {
1446 (Some(tasks), Some(actions)) => {
1447 if index < tasks.templates.len() {
1448 tasks
1449 .templates
1450 .get(index)
1451 .cloned()
1452 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1453 } else {
1454 actions.get(index - tasks.templates.len()).map(|available| {
1455 CodeActionsItem::CodeAction {
1456 excerpt_id: available.excerpt_id,
1457 action: available.action.clone(),
1458 provider: available.provider.clone(),
1459 }
1460 })
1461 }
1462 }
1463 (Some(tasks), None) => tasks
1464 .templates
1465 .get(index)
1466 .cloned()
1467 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1468 (None, Some(actions)) => {
1469 actions
1470 .get(index)
1471 .map(|available| CodeActionsItem::CodeAction {
1472 excerpt_id: available.excerpt_id,
1473 action: available.action.clone(),
1474 provider: available.provider.clone(),
1475 })
1476 }
1477 (None, None) => None,
1478 }
1479 }
1480}
1481
1482#[allow(clippy::large_enum_variant)]
1483#[derive(Clone)]
1484enum CodeActionsItem {
1485 Task(TaskSourceKind, ResolvedTask),
1486 CodeAction {
1487 excerpt_id: ExcerptId,
1488 action: CodeAction,
1489 provider: Arc<dyn CodeActionProvider>,
1490 },
1491}
1492
1493impl CodeActionsItem {
1494 fn as_task(&self) -> Option<&ResolvedTask> {
1495 let Self::Task(_, task) = self else {
1496 return None;
1497 };
1498 Some(task)
1499 }
1500 fn as_code_action(&self) -> Option<&CodeAction> {
1501 let Self::CodeAction { action, .. } = self else {
1502 return None;
1503 };
1504 Some(action)
1505 }
1506 fn label(&self) -> String {
1507 match self {
1508 Self::CodeAction { action, .. } => action.lsp_action.title.clone(),
1509 Self::Task(_, task) => task.resolved_label.clone(),
1510 }
1511 }
1512}
1513
1514struct CodeActionsMenu {
1515 actions: CodeActionContents,
1516 buffer: Model<Buffer>,
1517 selected_item: usize,
1518 scroll_handle: UniformListScrollHandle,
1519 deployed_from_indicator: Option<DisplayRow>,
1520}
1521
1522impl CodeActionsMenu {
1523 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1524 self.selected_item = 0;
1525 self.scroll_handle.scroll_to_item(self.selected_item);
1526 cx.notify()
1527 }
1528
1529 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1530 if self.selected_item > 0 {
1531 self.selected_item -= 1;
1532 } else {
1533 self.selected_item = self.actions.len() - 1;
1534 }
1535 self.scroll_handle.scroll_to_item(self.selected_item);
1536 cx.notify();
1537 }
1538
1539 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1540 if self.selected_item + 1 < self.actions.len() {
1541 self.selected_item += 1;
1542 } else {
1543 self.selected_item = 0;
1544 }
1545 self.scroll_handle.scroll_to_item(self.selected_item);
1546 cx.notify();
1547 }
1548
1549 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1550 self.selected_item = self.actions.len() - 1;
1551 self.scroll_handle.scroll_to_item(self.selected_item);
1552 cx.notify()
1553 }
1554
1555 fn visible(&self) -> bool {
1556 !self.actions.is_empty()
1557 }
1558
1559 fn render(
1560 &self,
1561 cursor_position: DisplayPoint,
1562 _style: &EditorStyle,
1563 max_height: Pixels,
1564 cx: &mut ViewContext<Editor>,
1565 ) -> (ContextMenuOrigin, AnyElement) {
1566 let actions = self.actions.clone();
1567 let selected_item = self.selected_item;
1568 let element = uniform_list(
1569 cx.view().clone(),
1570 "code_actions_menu",
1571 self.actions.len(),
1572 move |_this, range, cx| {
1573 actions
1574 .iter()
1575 .skip(range.start)
1576 .take(range.end - range.start)
1577 .enumerate()
1578 .map(|(ix, action)| {
1579 let item_ix = range.start + ix;
1580 let selected = selected_item == item_ix;
1581 let colors = cx.theme().colors();
1582 div()
1583 .px_1()
1584 .rounded_md()
1585 .text_color(colors.text)
1586 .when(selected, |style| {
1587 style
1588 .bg(colors.element_active)
1589 .text_color(colors.text_accent)
1590 })
1591 .hover(|style| {
1592 style
1593 .bg(colors.element_hover)
1594 .text_color(colors.text_accent)
1595 })
1596 .whitespace_nowrap()
1597 .when_some(action.as_code_action(), |this, action| {
1598 this.on_mouse_down(
1599 MouseButton::Left,
1600 cx.listener(move |editor, _, cx| {
1601 cx.stop_propagation();
1602 if let Some(task) = editor.confirm_code_action(
1603 &ConfirmCodeAction {
1604 item_ix: Some(item_ix),
1605 },
1606 cx,
1607 ) {
1608 task.detach_and_log_err(cx)
1609 }
1610 }),
1611 )
1612 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1613 .child(SharedString::from(action.lsp_action.title.clone()))
1614 })
1615 .when_some(action.as_task(), |this, task| {
1616 this.on_mouse_down(
1617 MouseButton::Left,
1618 cx.listener(move |editor, _, cx| {
1619 cx.stop_propagation();
1620 if let Some(task) = editor.confirm_code_action(
1621 &ConfirmCodeAction {
1622 item_ix: Some(item_ix),
1623 },
1624 cx,
1625 ) {
1626 task.detach_and_log_err(cx)
1627 }
1628 }),
1629 )
1630 .child(SharedString::from(task.resolved_label.clone()))
1631 })
1632 })
1633 .collect()
1634 },
1635 )
1636 .elevation_1(cx)
1637 .p_1()
1638 .max_h(max_height)
1639 .occlude()
1640 .track_scroll(self.scroll_handle.clone())
1641 .with_width_from_item(
1642 self.actions
1643 .iter()
1644 .enumerate()
1645 .max_by_key(|(_, action)| match action {
1646 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1647 CodeActionsItem::CodeAction { action, .. } => {
1648 action.lsp_action.title.chars().count()
1649 }
1650 })
1651 .map(|(ix, _)| ix),
1652 )
1653 .with_sizing_behavior(ListSizingBehavior::Infer)
1654 .into_any_element();
1655
1656 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1657 ContextMenuOrigin::GutterIndicator(row)
1658 } else {
1659 ContextMenuOrigin::EditorPoint(cursor_position)
1660 };
1661
1662 (cursor_position, element)
1663 }
1664}
1665
1666#[derive(Debug)]
1667struct ActiveDiagnosticGroup {
1668 primary_range: Range<Anchor>,
1669 primary_message: String,
1670 group_id: usize,
1671 blocks: HashMap<CustomBlockId, Diagnostic>,
1672 is_valid: bool,
1673}
1674
1675#[derive(Serialize, Deserialize, Clone, Debug)]
1676pub struct ClipboardSelection {
1677 pub len: usize,
1678 pub is_entire_line: bool,
1679 pub first_line_indent: u32,
1680}
1681
1682#[derive(Debug)]
1683pub(crate) struct NavigationData {
1684 cursor_anchor: Anchor,
1685 cursor_position: Point,
1686 scroll_anchor: ScrollAnchor,
1687 scroll_top_row: u32,
1688}
1689
1690#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1691pub enum GotoDefinitionKind {
1692 Symbol,
1693 Declaration,
1694 Type,
1695 Implementation,
1696}
1697
1698#[derive(Debug, Clone)]
1699enum InlayHintRefreshReason {
1700 Toggle(bool),
1701 SettingsChange(InlayHintSettings),
1702 NewLinesShown,
1703 BufferEdited(HashSet<Arc<Language>>),
1704 RefreshRequested,
1705 ExcerptsRemoved(Vec<ExcerptId>),
1706}
1707
1708impl InlayHintRefreshReason {
1709 fn description(&self) -> &'static str {
1710 match self {
1711 Self::Toggle(_) => "toggle",
1712 Self::SettingsChange(_) => "settings change",
1713 Self::NewLinesShown => "new lines shown",
1714 Self::BufferEdited(_) => "buffer edited",
1715 Self::RefreshRequested => "refresh requested",
1716 Self::ExcerptsRemoved(_) => "excerpts removed",
1717 }
1718 }
1719}
1720
1721pub(crate) struct FocusedBlock {
1722 id: BlockId,
1723 focus_handle: WeakFocusHandle,
1724}
1725
1726impl Editor {
1727 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1728 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1729 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1730 Self::new(
1731 EditorMode::SingleLine { auto_width: false },
1732 buffer,
1733 None,
1734 false,
1735 cx,
1736 )
1737 }
1738
1739 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1740 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1741 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1742 Self::new(EditorMode::Full, buffer, None, false, cx)
1743 }
1744
1745 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1746 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1747 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1748 Self::new(
1749 EditorMode::SingleLine { auto_width: true },
1750 buffer,
1751 None,
1752 false,
1753 cx,
1754 )
1755 }
1756
1757 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1758 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1759 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1760 Self::new(
1761 EditorMode::AutoHeight { max_lines },
1762 buffer,
1763 None,
1764 false,
1765 cx,
1766 )
1767 }
1768
1769 pub fn for_buffer(
1770 buffer: Model<Buffer>,
1771 project: Option<Model<Project>>,
1772 cx: &mut ViewContext<Self>,
1773 ) -> Self {
1774 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1775 Self::new(EditorMode::Full, buffer, project, false, cx)
1776 }
1777
1778 pub fn for_multibuffer(
1779 buffer: Model<MultiBuffer>,
1780 project: Option<Model<Project>>,
1781 show_excerpt_controls: bool,
1782 cx: &mut ViewContext<Self>,
1783 ) -> Self {
1784 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1785 }
1786
1787 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1788 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1789 let mut clone = Self::new(
1790 self.mode,
1791 self.buffer.clone(),
1792 self.project.clone(),
1793 show_excerpt_controls,
1794 cx,
1795 );
1796 self.display_map.update(cx, |display_map, cx| {
1797 let snapshot = display_map.snapshot(cx);
1798 clone.display_map.update(cx, |display_map, cx| {
1799 display_map.set_state(&snapshot, cx);
1800 });
1801 });
1802 clone.selections.clone_state(&self.selections);
1803 clone.scroll_manager.clone_state(&self.scroll_manager);
1804 clone.searchable = self.searchable;
1805 clone
1806 }
1807
1808 pub fn new(
1809 mode: EditorMode,
1810 buffer: Model<MultiBuffer>,
1811 project: Option<Model<Project>>,
1812 show_excerpt_controls: bool,
1813 cx: &mut ViewContext<Self>,
1814 ) -> Self {
1815 let style = cx.text_style();
1816 let font_size = style.font_size.to_pixels(cx.rem_size());
1817 let editor = cx.view().downgrade();
1818 let fold_placeholder = FoldPlaceholder {
1819 constrain_width: true,
1820 render: Arc::new(move |fold_id, fold_range, cx| {
1821 let editor = editor.clone();
1822 div()
1823 .id(fold_id)
1824 .bg(cx.theme().colors().ghost_element_background)
1825 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1826 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1827 .rounded_sm()
1828 .size_full()
1829 .cursor_pointer()
1830 .child("⋯")
1831 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1832 .on_click(move |_, cx| {
1833 editor
1834 .update(cx, |editor, cx| {
1835 editor.unfold_ranges(
1836 [fold_range.start..fold_range.end],
1837 true,
1838 false,
1839 cx,
1840 );
1841 cx.stop_propagation();
1842 })
1843 .ok();
1844 })
1845 .into_any()
1846 }),
1847 merge_adjacent: true,
1848 };
1849 let file_header_size = if show_excerpt_controls { 3 } else { 2 };
1850 let display_map = cx.new_model(|cx| {
1851 DisplayMap::new(
1852 buffer.clone(),
1853 style.font(),
1854 font_size,
1855 None,
1856 show_excerpt_controls,
1857 file_header_size,
1858 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1859 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1860 fold_placeholder,
1861 cx,
1862 )
1863 });
1864
1865 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1866
1867 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1868
1869 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1870 .then(|| language_settings::SoftWrap::None);
1871
1872 let mut project_subscriptions = Vec::new();
1873 if mode == EditorMode::Full {
1874 if let Some(project) = project.as_ref() {
1875 if buffer.read(cx).is_singleton() {
1876 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1877 cx.emit(EditorEvent::TitleChanged);
1878 }));
1879 }
1880 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1881 if let project::Event::RefreshInlayHints = event {
1882 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1883 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1884 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1885 let focus_handle = editor.focus_handle(cx);
1886 if focus_handle.is_focused(cx) {
1887 let snapshot = buffer.read(cx).snapshot();
1888 for (range, snippet) in snippet_edits {
1889 let editor_range =
1890 language::range_from_lsp(*range).to_offset(&snapshot);
1891 editor
1892 .insert_snippet(&[editor_range], snippet.clone(), cx)
1893 .ok();
1894 }
1895 }
1896 }
1897 }
1898 }));
1899 if let Some(task_inventory) = project
1900 .read(cx)
1901 .task_store()
1902 .read(cx)
1903 .task_inventory()
1904 .cloned()
1905 {
1906 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1907 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1908 }));
1909 }
1910 }
1911 }
1912
1913 let inlay_hint_settings = inlay_hint_settings(
1914 selections.newest_anchor().head(),
1915 &buffer.read(cx).snapshot(cx),
1916 cx,
1917 );
1918 let focus_handle = cx.focus_handle();
1919 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1920 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1921 .detach();
1922 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1923 .detach();
1924 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1925
1926 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1927 Some(false)
1928 } else {
1929 None
1930 };
1931
1932 let mut code_action_providers = Vec::new();
1933 if let Some(project) = project.clone() {
1934 code_action_providers.push(Arc::new(project) as Arc<_>);
1935 }
1936
1937 let mut this = Self {
1938 focus_handle,
1939 show_cursor_when_unfocused: false,
1940 last_focused_descendant: None,
1941 buffer: buffer.clone(),
1942 display_map: display_map.clone(),
1943 selections,
1944 scroll_manager: ScrollManager::new(cx),
1945 columnar_selection_tail: None,
1946 add_selections_state: None,
1947 select_next_state: None,
1948 select_prev_state: None,
1949 selection_history: Default::default(),
1950 autoclose_regions: Default::default(),
1951 snippet_stack: Default::default(),
1952 select_larger_syntax_node_stack: Vec::new(),
1953 ime_transaction: Default::default(),
1954 active_diagnostics: None,
1955 soft_wrap_mode_override,
1956 completion_provider: project.clone().map(|project| Box::new(project) as _),
1957 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1958 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1959 project,
1960 blink_manager: blink_manager.clone(),
1961 show_local_selections: true,
1962 mode,
1963 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1964 show_gutter: mode == EditorMode::Full,
1965 show_line_numbers: None,
1966 use_relative_line_numbers: None,
1967 show_git_diff_gutter: None,
1968 show_code_actions: None,
1969 show_runnables: None,
1970 show_wrap_guides: None,
1971 show_indent_guides,
1972 placeholder_text: None,
1973 highlight_order: 0,
1974 highlighted_rows: HashMap::default(),
1975 background_highlights: Default::default(),
1976 gutter_highlights: TreeMap::default(),
1977 scrollbar_marker_state: ScrollbarMarkerState::default(),
1978 active_indent_guides_state: ActiveIndentGuidesState::default(),
1979 nav_history: None,
1980 context_menu: RwLock::new(None),
1981 mouse_context_menu: None,
1982 hunk_controls_menu_handle: PopoverMenuHandle::default(),
1983 completion_tasks: Default::default(),
1984 signature_help_state: SignatureHelpState::default(),
1985 auto_signature_help: None,
1986 find_all_references_task_sources: Vec::new(),
1987 next_completion_id: 0,
1988 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1989 next_inlay_id: 0,
1990 code_action_providers,
1991 available_code_actions: Default::default(),
1992 code_actions_task: Default::default(),
1993 document_highlights_task: Default::default(),
1994 linked_editing_range_task: Default::default(),
1995 pending_rename: Default::default(),
1996 searchable: true,
1997 cursor_shape: EditorSettings::get_global(cx)
1998 .cursor_shape
1999 .unwrap_or_default(),
2000 current_line_highlight: None,
2001 autoindent_mode: Some(AutoindentMode::EachLine),
2002 collapse_matches: false,
2003 workspace: None,
2004 input_enabled: true,
2005 use_modal_editing: mode == EditorMode::Full,
2006 read_only: false,
2007 use_autoclose: true,
2008 use_auto_surround: true,
2009 auto_replace_emoji_shortcode: false,
2010 leader_peer_id: None,
2011 remote_id: None,
2012 hover_state: Default::default(),
2013 hovered_link_state: Default::default(),
2014 inline_completion_provider: None,
2015 active_inline_completion: None,
2016 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
2017 expanded_hunks: ExpandedHunks::default(),
2018 gutter_hovered: false,
2019 pixel_position_of_newest_cursor: None,
2020 last_bounds: None,
2021 expect_bounds_change: None,
2022 gutter_dimensions: GutterDimensions::default(),
2023 style: None,
2024 show_cursor_names: false,
2025 hovered_cursors: Default::default(),
2026 next_editor_action_id: EditorActionId::default(),
2027 editor_actions: Rc::default(),
2028 show_inline_completions_override: None,
2029 enable_inline_completions: true,
2030 custom_context_menu: None,
2031 show_git_blame_gutter: false,
2032 show_git_blame_inline: false,
2033 show_selection_menu: None,
2034 show_git_blame_inline_delay_task: None,
2035 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
2036 serialize_dirty_buffers: ProjectSettings::get_global(cx)
2037 .session
2038 .restore_unsaved_buffers,
2039 blame: None,
2040 blame_subscription: None,
2041 file_header_size,
2042 tasks: Default::default(),
2043 _subscriptions: vec![
2044 cx.observe(&buffer, Self::on_buffer_changed),
2045 cx.subscribe(&buffer, Self::on_buffer_event),
2046 cx.observe(&display_map, Self::on_display_map_changed),
2047 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
2048 cx.observe_global::<SettingsStore>(Self::settings_changed),
2049 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
2050 cx.observe_window_activation(|editor, cx| {
2051 let active = cx.is_window_active();
2052 editor.blink_manager.update(cx, |blink_manager, cx| {
2053 if active {
2054 blink_manager.enable(cx);
2055 } else {
2056 blink_manager.disable(cx);
2057 }
2058 });
2059 }),
2060 ],
2061 tasks_update_task: None,
2062 linked_edit_ranges: Default::default(),
2063 previous_search_ranges: None,
2064 breadcrumb_header: None,
2065 focused_block: None,
2066 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
2067 addons: HashMap::default(),
2068 _scroll_cursor_center_top_bottom_task: Task::ready(()),
2069 };
2070 this.tasks_update_task = Some(this.refresh_runnables(cx));
2071 this._subscriptions.extend(project_subscriptions);
2072
2073 this.end_selection(cx);
2074 this.scroll_manager.show_scrollbar(cx);
2075
2076 if mode == EditorMode::Full {
2077 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
2078 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
2079
2080 if this.git_blame_inline_enabled {
2081 this.git_blame_inline_enabled = true;
2082 this.start_git_blame_inline(false, cx);
2083 }
2084 }
2085
2086 this.report_editor_event("open", None, cx);
2087 this
2088 }
2089
2090 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
2091 self.mouse_context_menu
2092 .as_ref()
2093 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
2094 }
2095
2096 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
2097 let mut key_context = KeyContext::new_with_defaults();
2098 key_context.add("Editor");
2099 let mode = match self.mode {
2100 EditorMode::SingleLine { .. } => "single_line",
2101 EditorMode::AutoHeight { .. } => "auto_height",
2102 EditorMode::Full => "full",
2103 };
2104
2105 if EditorSettings::jupyter_enabled(cx) {
2106 key_context.add("jupyter");
2107 }
2108
2109 key_context.set("mode", mode);
2110 if self.pending_rename.is_some() {
2111 key_context.add("renaming");
2112 }
2113 if self.context_menu_visible() {
2114 match self.context_menu.read().as_ref() {
2115 Some(ContextMenu::Completions(_)) => {
2116 key_context.add("menu");
2117 key_context.add("showing_completions")
2118 }
2119 Some(ContextMenu::CodeActions(_)) => {
2120 key_context.add("menu");
2121 key_context.add("showing_code_actions")
2122 }
2123 None => {}
2124 }
2125 }
2126
2127 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2128 if !self.focus_handle(cx).contains_focused(cx)
2129 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2130 {
2131 for addon in self.addons.values() {
2132 addon.extend_key_context(&mut key_context, cx)
2133 }
2134 }
2135
2136 if let Some(extension) = self
2137 .buffer
2138 .read(cx)
2139 .as_singleton()
2140 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2141 {
2142 key_context.set("extension", extension.to_string());
2143 }
2144
2145 if self.has_active_inline_completion(cx) {
2146 key_context.add("copilot_suggestion");
2147 key_context.add("inline_completion");
2148 }
2149
2150 key_context
2151 }
2152
2153 pub fn new_file(
2154 workspace: &mut Workspace,
2155 _: &workspace::NewFile,
2156 cx: &mut ViewContext<Workspace>,
2157 ) {
2158 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2159 "Failed to create buffer",
2160 cx,
2161 |e, _| match e.error_code() {
2162 ErrorCode::RemoteUpgradeRequired => Some(format!(
2163 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2164 e.error_tag("required").unwrap_or("the latest version")
2165 )),
2166 _ => None,
2167 },
2168 );
2169 }
2170
2171 pub fn new_in_workspace(
2172 workspace: &mut Workspace,
2173 cx: &mut ViewContext<Workspace>,
2174 ) -> Task<Result<View<Editor>>> {
2175 let project = workspace.project().clone();
2176 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2177
2178 cx.spawn(|workspace, mut cx| async move {
2179 let buffer = create.await?;
2180 workspace.update(&mut cx, |workspace, cx| {
2181 let editor =
2182 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2183 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2184 editor
2185 })
2186 })
2187 }
2188
2189 fn new_file_vertical(
2190 workspace: &mut Workspace,
2191 _: &workspace::NewFileSplitVertical,
2192 cx: &mut ViewContext<Workspace>,
2193 ) {
2194 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2195 }
2196
2197 fn new_file_horizontal(
2198 workspace: &mut Workspace,
2199 _: &workspace::NewFileSplitHorizontal,
2200 cx: &mut ViewContext<Workspace>,
2201 ) {
2202 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2203 }
2204
2205 fn new_file_in_direction(
2206 workspace: &mut Workspace,
2207 direction: SplitDirection,
2208 cx: &mut ViewContext<Workspace>,
2209 ) {
2210 let project = workspace.project().clone();
2211 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2212
2213 cx.spawn(|workspace, mut cx| async move {
2214 let buffer = create.await?;
2215 workspace.update(&mut cx, move |workspace, cx| {
2216 workspace.split_item(
2217 direction,
2218 Box::new(
2219 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2220 ),
2221 cx,
2222 )
2223 })?;
2224 anyhow::Ok(())
2225 })
2226 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2227 ErrorCode::RemoteUpgradeRequired => Some(format!(
2228 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2229 e.error_tag("required").unwrap_or("the latest version")
2230 )),
2231 _ => None,
2232 });
2233 }
2234
2235 pub fn leader_peer_id(&self) -> Option<PeerId> {
2236 self.leader_peer_id
2237 }
2238
2239 pub fn buffer(&self) -> &Model<MultiBuffer> {
2240 &self.buffer
2241 }
2242
2243 pub fn workspace(&self) -> Option<View<Workspace>> {
2244 self.workspace.as_ref()?.0.upgrade()
2245 }
2246
2247 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2248 self.buffer().read(cx).title(cx)
2249 }
2250
2251 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2252 let git_blame_gutter_max_author_length = self
2253 .render_git_blame_gutter(cx)
2254 .then(|| {
2255 if let Some(blame) = self.blame.as_ref() {
2256 let max_author_length =
2257 blame.update(cx, |blame, cx| blame.max_author_length(cx));
2258 Some(max_author_length)
2259 } else {
2260 None
2261 }
2262 })
2263 .flatten();
2264
2265 EditorSnapshot {
2266 mode: self.mode,
2267 show_gutter: self.show_gutter,
2268 show_line_numbers: self.show_line_numbers,
2269 show_git_diff_gutter: self.show_git_diff_gutter,
2270 show_code_actions: self.show_code_actions,
2271 show_runnables: self.show_runnables,
2272 git_blame_gutter_max_author_length,
2273 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2274 scroll_anchor: self.scroll_manager.anchor(),
2275 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2276 placeholder_text: self.placeholder_text.clone(),
2277 is_focused: self.focus_handle.is_focused(cx),
2278 current_line_highlight: self
2279 .current_line_highlight
2280 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2281 gutter_hovered: self.gutter_hovered,
2282 }
2283 }
2284
2285 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2286 self.buffer.read(cx).language_at(point, cx)
2287 }
2288
2289 pub fn file_at<T: ToOffset>(
2290 &self,
2291 point: T,
2292 cx: &AppContext,
2293 ) -> Option<Arc<dyn language::File>> {
2294 self.buffer.read(cx).read(cx).file_at(point).cloned()
2295 }
2296
2297 pub fn active_excerpt(
2298 &self,
2299 cx: &AppContext,
2300 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2301 self.buffer
2302 .read(cx)
2303 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2304 }
2305
2306 pub fn mode(&self) -> EditorMode {
2307 self.mode
2308 }
2309
2310 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2311 self.collaboration_hub.as_deref()
2312 }
2313
2314 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2315 self.collaboration_hub = Some(hub);
2316 }
2317
2318 pub fn set_custom_context_menu(
2319 &mut self,
2320 f: impl 'static
2321 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2322 ) {
2323 self.custom_context_menu = Some(Box::new(f))
2324 }
2325
2326 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
2327 self.completion_provider = provider;
2328 }
2329
2330 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
2331 self.semantics_provider.clone()
2332 }
2333
2334 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
2335 self.semantics_provider = provider;
2336 }
2337
2338 pub fn set_inline_completion_provider<T>(
2339 &mut self,
2340 provider: Option<Model<T>>,
2341 cx: &mut ViewContext<Self>,
2342 ) where
2343 T: InlineCompletionProvider,
2344 {
2345 self.inline_completion_provider =
2346 provider.map(|provider| RegisteredInlineCompletionProvider {
2347 _subscription: cx.observe(&provider, |this, _, cx| {
2348 if this.focus_handle.is_focused(cx) {
2349 this.update_visible_inline_completion(cx);
2350 }
2351 }),
2352 provider: Arc::new(provider),
2353 });
2354 self.refresh_inline_completion(false, false, cx);
2355 }
2356
2357 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2358 self.placeholder_text.as_deref()
2359 }
2360
2361 pub fn set_placeholder_text(
2362 &mut self,
2363 placeholder_text: impl Into<Arc<str>>,
2364 cx: &mut ViewContext<Self>,
2365 ) {
2366 let placeholder_text = Some(placeholder_text.into());
2367 if self.placeholder_text != placeholder_text {
2368 self.placeholder_text = placeholder_text;
2369 cx.notify();
2370 }
2371 }
2372
2373 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2374 self.cursor_shape = cursor_shape;
2375
2376 // Disrupt blink for immediate user feedback that the cursor shape has changed
2377 self.blink_manager.update(cx, BlinkManager::show_cursor);
2378
2379 cx.notify();
2380 }
2381
2382 pub fn set_current_line_highlight(
2383 &mut self,
2384 current_line_highlight: Option<CurrentLineHighlight>,
2385 ) {
2386 self.current_line_highlight = current_line_highlight;
2387 }
2388
2389 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2390 self.collapse_matches = collapse_matches;
2391 }
2392
2393 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2394 if self.collapse_matches {
2395 return range.start..range.start;
2396 }
2397 range.clone()
2398 }
2399
2400 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2401 if self.display_map.read(cx).clip_at_line_ends != clip {
2402 self.display_map
2403 .update(cx, |map, _| map.clip_at_line_ends = clip);
2404 }
2405 }
2406
2407 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2408 self.input_enabled = input_enabled;
2409 }
2410
2411 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2412 self.enable_inline_completions = enabled;
2413 }
2414
2415 pub fn set_autoindent(&mut self, autoindent: bool) {
2416 if autoindent {
2417 self.autoindent_mode = Some(AutoindentMode::EachLine);
2418 } else {
2419 self.autoindent_mode = None;
2420 }
2421 }
2422
2423 pub fn read_only(&self, cx: &AppContext) -> bool {
2424 self.read_only || self.buffer.read(cx).read_only()
2425 }
2426
2427 pub fn set_read_only(&mut self, read_only: bool) {
2428 self.read_only = read_only;
2429 }
2430
2431 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2432 self.use_autoclose = autoclose;
2433 }
2434
2435 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2436 self.use_auto_surround = auto_surround;
2437 }
2438
2439 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2440 self.auto_replace_emoji_shortcode = auto_replace;
2441 }
2442
2443 pub fn toggle_inline_completions(
2444 &mut self,
2445 _: &ToggleInlineCompletions,
2446 cx: &mut ViewContext<Self>,
2447 ) {
2448 if self.show_inline_completions_override.is_some() {
2449 self.set_show_inline_completions(None, cx);
2450 } else {
2451 let cursor = self.selections.newest_anchor().head();
2452 if let Some((buffer, cursor_buffer_position)) =
2453 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2454 {
2455 let show_inline_completions =
2456 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2457 self.set_show_inline_completions(Some(show_inline_completions), cx);
2458 }
2459 }
2460 }
2461
2462 pub fn set_show_inline_completions(
2463 &mut self,
2464 show_inline_completions: Option<bool>,
2465 cx: &mut ViewContext<Self>,
2466 ) {
2467 self.show_inline_completions_override = show_inline_completions;
2468 self.refresh_inline_completion(false, true, cx);
2469 }
2470
2471 fn should_show_inline_completions(
2472 &self,
2473 buffer: &Model<Buffer>,
2474 buffer_position: language::Anchor,
2475 cx: &AppContext,
2476 ) -> bool {
2477 if let Some(provider) = self.inline_completion_provider() {
2478 if let Some(show_inline_completions) = self.show_inline_completions_override {
2479 show_inline_completions
2480 } else {
2481 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2482 }
2483 } else {
2484 false
2485 }
2486 }
2487
2488 pub fn set_use_modal_editing(&mut self, to: bool) {
2489 self.use_modal_editing = to;
2490 }
2491
2492 pub fn use_modal_editing(&self) -> bool {
2493 self.use_modal_editing
2494 }
2495
2496 fn selections_did_change(
2497 &mut self,
2498 local: bool,
2499 old_cursor_position: &Anchor,
2500 show_completions: bool,
2501 cx: &mut ViewContext<Self>,
2502 ) {
2503 cx.invalidate_character_coordinates();
2504
2505 // Copy selections to primary selection buffer
2506 #[cfg(target_os = "linux")]
2507 if local {
2508 let selections = self.selections.all::<usize>(cx);
2509 let buffer_handle = self.buffer.read(cx).read(cx);
2510
2511 let mut text = String::new();
2512 for (index, selection) in selections.iter().enumerate() {
2513 let text_for_selection = buffer_handle
2514 .text_for_range(selection.start..selection.end)
2515 .collect::<String>();
2516
2517 text.push_str(&text_for_selection);
2518 if index != selections.len() - 1 {
2519 text.push('\n');
2520 }
2521 }
2522
2523 if !text.is_empty() {
2524 cx.write_to_primary(ClipboardItem::new_string(text));
2525 }
2526 }
2527
2528 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2529 self.buffer.update(cx, |buffer, cx| {
2530 buffer.set_active_selections(
2531 &self.selections.disjoint_anchors(),
2532 self.selections.line_mode,
2533 self.cursor_shape,
2534 cx,
2535 )
2536 });
2537 }
2538 let display_map = self
2539 .display_map
2540 .update(cx, |display_map, cx| display_map.snapshot(cx));
2541 let buffer = &display_map.buffer_snapshot;
2542 self.add_selections_state = None;
2543 self.select_next_state = None;
2544 self.select_prev_state = None;
2545 self.select_larger_syntax_node_stack.clear();
2546 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2547 self.snippet_stack
2548 .invalidate(&self.selections.disjoint_anchors(), buffer);
2549 self.take_rename(false, cx);
2550
2551 let new_cursor_position = self.selections.newest_anchor().head();
2552
2553 self.push_to_nav_history(
2554 *old_cursor_position,
2555 Some(new_cursor_position.to_point(buffer)),
2556 cx,
2557 );
2558
2559 if local {
2560 let new_cursor_position = self.selections.newest_anchor().head();
2561 let mut context_menu = self.context_menu.write();
2562 let completion_menu = match context_menu.as_ref() {
2563 Some(ContextMenu::Completions(menu)) => Some(menu),
2564
2565 _ => {
2566 *context_menu = None;
2567 None
2568 }
2569 };
2570
2571 if let Some(completion_menu) = completion_menu {
2572 let cursor_position = new_cursor_position.to_offset(buffer);
2573 let (word_range, kind) =
2574 buffer.surrounding_word(completion_menu.initial_position, true);
2575 if kind == Some(CharKind::Word)
2576 && word_range.to_inclusive().contains(&cursor_position)
2577 {
2578 let mut completion_menu = completion_menu.clone();
2579 drop(context_menu);
2580
2581 let query = Self::completion_query(buffer, cursor_position);
2582 cx.spawn(move |this, mut cx| async move {
2583 completion_menu
2584 .filter(query.as_deref(), cx.background_executor().clone())
2585 .await;
2586
2587 this.update(&mut cx, |this, cx| {
2588 let mut context_menu = this.context_menu.write();
2589 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2590 return;
2591 };
2592
2593 if menu.id > completion_menu.id {
2594 return;
2595 }
2596
2597 *context_menu = Some(ContextMenu::Completions(completion_menu));
2598 drop(context_menu);
2599 cx.notify();
2600 })
2601 })
2602 .detach();
2603
2604 if show_completions {
2605 self.show_completions(&ShowCompletions { trigger: None }, cx);
2606 }
2607 } else {
2608 drop(context_menu);
2609 self.hide_context_menu(cx);
2610 }
2611 } else {
2612 drop(context_menu);
2613 }
2614
2615 hide_hover(self, cx);
2616
2617 if old_cursor_position.to_display_point(&display_map).row()
2618 != new_cursor_position.to_display_point(&display_map).row()
2619 {
2620 self.available_code_actions.take();
2621 }
2622 self.refresh_code_actions(cx);
2623 self.refresh_document_highlights(cx);
2624 refresh_matching_bracket_highlights(self, cx);
2625 self.discard_inline_completion(false, cx);
2626 linked_editing_ranges::refresh_linked_ranges(self, cx);
2627 if self.git_blame_inline_enabled {
2628 self.start_inline_blame_timer(cx);
2629 }
2630 }
2631
2632 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2633 cx.emit(EditorEvent::SelectionsChanged { local });
2634
2635 if self.selections.disjoint_anchors().len() == 1 {
2636 cx.emit(SearchEvent::ActiveMatchChanged)
2637 }
2638 cx.notify();
2639 }
2640
2641 pub fn change_selections<R>(
2642 &mut self,
2643 autoscroll: Option<Autoscroll>,
2644 cx: &mut ViewContext<Self>,
2645 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2646 ) -> R {
2647 self.change_selections_inner(autoscroll, true, cx, change)
2648 }
2649
2650 pub fn change_selections_inner<R>(
2651 &mut self,
2652 autoscroll: Option<Autoscroll>,
2653 request_completions: bool,
2654 cx: &mut ViewContext<Self>,
2655 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2656 ) -> R {
2657 let old_cursor_position = self.selections.newest_anchor().head();
2658 self.push_to_selection_history();
2659
2660 let (changed, result) = self.selections.change_with(cx, change);
2661
2662 if changed {
2663 if let Some(autoscroll) = autoscroll {
2664 self.request_autoscroll(autoscroll, cx);
2665 }
2666 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2667
2668 if self.should_open_signature_help_automatically(
2669 &old_cursor_position,
2670 self.signature_help_state.backspace_pressed(),
2671 cx,
2672 ) {
2673 self.show_signature_help(&ShowSignatureHelp, cx);
2674 }
2675 self.signature_help_state.set_backspace_pressed(false);
2676 }
2677
2678 result
2679 }
2680
2681 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2682 where
2683 I: IntoIterator<Item = (Range<S>, T)>,
2684 S: ToOffset,
2685 T: Into<Arc<str>>,
2686 {
2687 if self.read_only(cx) {
2688 return;
2689 }
2690
2691 self.buffer
2692 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2693 }
2694
2695 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2696 where
2697 I: IntoIterator<Item = (Range<S>, T)>,
2698 S: ToOffset,
2699 T: Into<Arc<str>>,
2700 {
2701 if self.read_only(cx) {
2702 return;
2703 }
2704
2705 self.buffer.update(cx, |buffer, cx| {
2706 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2707 });
2708 }
2709
2710 pub fn edit_with_block_indent<I, S, T>(
2711 &mut self,
2712 edits: I,
2713 original_indent_columns: Vec<u32>,
2714 cx: &mut ViewContext<Self>,
2715 ) where
2716 I: IntoIterator<Item = (Range<S>, T)>,
2717 S: ToOffset,
2718 T: Into<Arc<str>>,
2719 {
2720 if self.read_only(cx) {
2721 return;
2722 }
2723
2724 self.buffer.update(cx, |buffer, cx| {
2725 buffer.edit(
2726 edits,
2727 Some(AutoindentMode::Block {
2728 original_indent_columns,
2729 }),
2730 cx,
2731 )
2732 });
2733 }
2734
2735 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2736 self.hide_context_menu(cx);
2737
2738 match phase {
2739 SelectPhase::Begin {
2740 position,
2741 add,
2742 click_count,
2743 } => self.begin_selection(position, add, click_count, cx),
2744 SelectPhase::BeginColumnar {
2745 position,
2746 goal_column,
2747 reset,
2748 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2749 SelectPhase::Extend {
2750 position,
2751 click_count,
2752 } => self.extend_selection(position, click_count, cx),
2753 SelectPhase::Update {
2754 position,
2755 goal_column,
2756 scroll_delta,
2757 } => self.update_selection(position, goal_column, scroll_delta, cx),
2758 SelectPhase::End => self.end_selection(cx),
2759 }
2760 }
2761
2762 fn extend_selection(
2763 &mut self,
2764 position: DisplayPoint,
2765 click_count: usize,
2766 cx: &mut ViewContext<Self>,
2767 ) {
2768 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2769 let tail = self.selections.newest::<usize>(cx).tail();
2770 self.begin_selection(position, false, click_count, cx);
2771
2772 let position = position.to_offset(&display_map, Bias::Left);
2773 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2774
2775 let mut pending_selection = self
2776 .selections
2777 .pending_anchor()
2778 .expect("extend_selection not called with pending selection");
2779 if position >= tail {
2780 pending_selection.start = tail_anchor;
2781 } else {
2782 pending_selection.end = tail_anchor;
2783 pending_selection.reversed = true;
2784 }
2785
2786 let mut pending_mode = self.selections.pending_mode().unwrap();
2787 match &mut pending_mode {
2788 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2789 _ => {}
2790 }
2791
2792 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2793 s.set_pending(pending_selection, pending_mode)
2794 });
2795 }
2796
2797 fn begin_selection(
2798 &mut self,
2799 position: DisplayPoint,
2800 add: bool,
2801 click_count: usize,
2802 cx: &mut ViewContext<Self>,
2803 ) {
2804 if !self.focus_handle.is_focused(cx) {
2805 self.last_focused_descendant = None;
2806 cx.focus(&self.focus_handle);
2807 }
2808
2809 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2810 let buffer = &display_map.buffer_snapshot;
2811 let newest_selection = self.selections.newest_anchor().clone();
2812 let position = display_map.clip_point(position, Bias::Left);
2813
2814 let start;
2815 let end;
2816 let mode;
2817 let auto_scroll;
2818 match click_count {
2819 1 => {
2820 start = buffer.anchor_before(position.to_point(&display_map));
2821 end = start;
2822 mode = SelectMode::Character;
2823 auto_scroll = true;
2824 }
2825 2 => {
2826 let range = movement::surrounding_word(&display_map, position);
2827 start = buffer.anchor_before(range.start.to_point(&display_map));
2828 end = buffer.anchor_before(range.end.to_point(&display_map));
2829 mode = SelectMode::Word(start..end);
2830 auto_scroll = true;
2831 }
2832 3 => {
2833 let position = display_map
2834 .clip_point(position, Bias::Left)
2835 .to_point(&display_map);
2836 let line_start = display_map.prev_line_boundary(position).0;
2837 let next_line_start = buffer.clip_point(
2838 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2839 Bias::Left,
2840 );
2841 start = buffer.anchor_before(line_start);
2842 end = buffer.anchor_before(next_line_start);
2843 mode = SelectMode::Line(start..end);
2844 auto_scroll = true;
2845 }
2846 _ => {
2847 start = buffer.anchor_before(0);
2848 end = buffer.anchor_before(buffer.len());
2849 mode = SelectMode::All;
2850 auto_scroll = false;
2851 }
2852 }
2853
2854 let point_to_delete: Option<usize> = {
2855 let selected_points: Vec<Selection<Point>> =
2856 self.selections.disjoint_in_range(start..end, cx);
2857
2858 if !add || click_count > 1 {
2859 None
2860 } else if !selected_points.is_empty() {
2861 Some(selected_points[0].id)
2862 } else {
2863 let clicked_point_already_selected =
2864 self.selections.disjoint.iter().find(|selection| {
2865 selection.start.to_point(buffer) == start.to_point(buffer)
2866 || selection.end.to_point(buffer) == end.to_point(buffer)
2867 });
2868
2869 clicked_point_already_selected.map(|selection| selection.id)
2870 }
2871 };
2872
2873 let selections_count = self.selections.count();
2874
2875 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2876 if let Some(point_to_delete) = point_to_delete {
2877 s.delete(point_to_delete);
2878
2879 if selections_count == 1 {
2880 s.set_pending_anchor_range(start..end, mode);
2881 }
2882 } else {
2883 if !add {
2884 s.clear_disjoint();
2885 } else if click_count > 1 {
2886 s.delete(newest_selection.id)
2887 }
2888
2889 s.set_pending_anchor_range(start..end, mode);
2890 }
2891 });
2892 }
2893
2894 fn begin_columnar_selection(
2895 &mut self,
2896 position: DisplayPoint,
2897 goal_column: u32,
2898 reset: bool,
2899 cx: &mut ViewContext<Self>,
2900 ) {
2901 if !self.focus_handle.is_focused(cx) {
2902 self.last_focused_descendant = None;
2903 cx.focus(&self.focus_handle);
2904 }
2905
2906 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2907
2908 if reset {
2909 let pointer_position = display_map
2910 .buffer_snapshot
2911 .anchor_before(position.to_point(&display_map));
2912
2913 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2914 s.clear_disjoint();
2915 s.set_pending_anchor_range(
2916 pointer_position..pointer_position,
2917 SelectMode::Character,
2918 );
2919 });
2920 }
2921
2922 let tail = self.selections.newest::<Point>(cx).tail();
2923 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2924
2925 if !reset {
2926 self.select_columns(
2927 tail.to_display_point(&display_map),
2928 position,
2929 goal_column,
2930 &display_map,
2931 cx,
2932 );
2933 }
2934 }
2935
2936 fn update_selection(
2937 &mut self,
2938 position: DisplayPoint,
2939 goal_column: u32,
2940 scroll_delta: gpui::Point<f32>,
2941 cx: &mut ViewContext<Self>,
2942 ) {
2943 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2944
2945 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2946 let tail = tail.to_display_point(&display_map);
2947 self.select_columns(tail, position, goal_column, &display_map, cx);
2948 } else if let Some(mut pending) = self.selections.pending_anchor() {
2949 let buffer = self.buffer.read(cx).snapshot(cx);
2950 let head;
2951 let tail;
2952 let mode = self.selections.pending_mode().unwrap();
2953 match &mode {
2954 SelectMode::Character => {
2955 head = position.to_point(&display_map);
2956 tail = pending.tail().to_point(&buffer);
2957 }
2958 SelectMode::Word(original_range) => {
2959 let original_display_range = original_range.start.to_display_point(&display_map)
2960 ..original_range.end.to_display_point(&display_map);
2961 let original_buffer_range = original_display_range.start.to_point(&display_map)
2962 ..original_display_range.end.to_point(&display_map);
2963 if movement::is_inside_word(&display_map, position)
2964 || original_display_range.contains(&position)
2965 {
2966 let word_range = movement::surrounding_word(&display_map, position);
2967 if word_range.start < original_display_range.start {
2968 head = word_range.start.to_point(&display_map);
2969 } else {
2970 head = word_range.end.to_point(&display_map);
2971 }
2972 } else {
2973 head = position.to_point(&display_map);
2974 }
2975
2976 if head <= original_buffer_range.start {
2977 tail = original_buffer_range.end;
2978 } else {
2979 tail = original_buffer_range.start;
2980 }
2981 }
2982 SelectMode::Line(original_range) => {
2983 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2984
2985 let position = display_map
2986 .clip_point(position, Bias::Left)
2987 .to_point(&display_map);
2988 let line_start = display_map.prev_line_boundary(position).0;
2989 let next_line_start = buffer.clip_point(
2990 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2991 Bias::Left,
2992 );
2993
2994 if line_start < original_range.start {
2995 head = line_start
2996 } else {
2997 head = next_line_start
2998 }
2999
3000 if head <= original_range.start {
3001 tail = original_range.end;
3002 } else {
3003 tail = original_range.start;
3004 }
3005 }
3006 SelectMode::All => {
3007 return;
3008 }
3009 };
3010
3011 if head < tail {
3012 pending.start = buffer.anchor_before(head);
3013 pending.end = buffer.anchor_before(tail);
3014 pending.reversed = true;
3015 } else {
3016 pending.start = buffer.anchor_before(tail);
3017 pending.end = buffer.anchor_before(head);
3018 pending.reversed = false;
3019 }
3020
3021 self.change_selections(None, cx, |s| {
3022 s.set_pending(pending, mode);
3023 });
3024 } else {
3025 log::error!("update_selection dispatched with no pending selection");
3026 return;
3027 }
3028
3029 self.apply_scroll_delta(scroll_delta, cx);
3030 cx.notify();
3031 }
3032
3033 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
3034 self.columnar_selection_tail.take();
3035 if self.selections.pending_anchor().is_some() {
3036 let selections = self.selections.all::<usize>(cx);
3037 self.change_selections(None, cx, |s| {
3038 s.select(selections);
3039 s.clear_pending();
3040 });
3041 }
3042 }
3043
3044 fn select_columns(
3045 &mut self,
3046 tail: DisplayPoint,
3047 head: DisplayPoint,
3048 goal_column: u32,
3049 display_map: &DisplaySnapshot,
3050 cx: &mut ViewContext<Self>,
3051 ) {
3052 let start_row = cmp::min(tail.row(), head.row());
3053 let end_row = cmp::max(tail.row(), head.row());
3054 let start_column = cmp::min(tail.column(), goal_column);
3055 let end_column = cmp::max(tail.column(), goal_column);
3056 let reversed = start_column < tail.column();
3057
3058 let selection_ranges = (start_row.0..=end_row.0)
3059 .map(DisplayRow)
3060 .filter_map(|row| {
3061 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
3062 let start = display_map
3063 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
3064 .to_point(display_map);
3065 let end = display_map
3066 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
3067 .to_point(display_map);
3068 if reversed {
3069 Some(end..start)
3070 } else {
3071 Some(start..end)
3072 }
3073 } else {
3074 None
3075 }
3076 })
3077 .collect::<Vec<_>>();
3078
3079 self.change_selections(None, cx, |s| {
3080 s.select_ranges(selection_ranges);
3081 });
3082 cx.notify();
3083 }
3084
3085 pub fn has_pending_nonempty_selection(&self) -> bool {
3086 let pending_nonempty_selection = match self.selections.pending_anchor() {
3087 Some(Selection { start, end, .. }) => start != end,
3088 None => false,
3089 };
3090
3091 pending_nonempty_selection
3092 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
3093 }
3094
3095 pub fn has_pending_selection(&self) -> bool {
3096 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
3097 }
3098
3099 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
3100 if self.clear_expanded_diff_hunks(cx) {
3101 cx.notify();
3102 return;
3103 }
3104 if self.dismiss_menus_and_popups(true, cx) {
3105 return;
3106 }
3107
3108 if self.mode == EditorMode::Full
3109 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3110 {
3111 return;
3112 }
3113
3114 cx.propagate();
3115 }
3116
3117 pub fn dismiss_menus_and_popups(
3118 &mut self,
3119 should_report_inline_completion_event: bool,
3120 cx: &mut ViewContext<Self>,
3121 ) -> bool {
3122 if self.take_rename(false, cx).is_some() {
3123 return true;
3124 }
3125
3126 if hide_hover(self, cx) {
3127 return true;
3128 }
3129
3130 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3131 return true;
3132 }
3133
3134 if self.hide_context_menu(cx).is_some() {
3135 return true;
3136 }
3137
3138 if self.mouse_context_menu.take().is_some() {
3139 return true;
3140 }
3141
3142 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3143 return true;
3144 }
3145
3146 if self.snippet_stack.pop().is_some() {
3147 return true;
3148 }
3149
3150 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3151 self.dismiss_diagnostics(cx);
3152 return true;
3153 }
3154
3155 false
3156 }
3157
3158 fn linked_editing_ranges_for(
3159 &self,
3160 selection: Range<text::Anchor>,
3161 cx: &AppContext,
3162 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3163 if self.linked_edit_ranges.is_empty() {
3164 return None;
3165 }
3166 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3167 selection.end.buffer_id.and_then(|end_buffer_id| {
3168 if selection.start.buffer_id != Some(end_buffer_id) {
3169 return None;
3170 }
3171 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3172 let snapshot = buffer.read(cx).snapshot();
3173 self.linked_edit_ranges
3174 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3175 .map(|ranges| (ranges, snapshot, buffer))
3176 })?;
3177 use text::ToOffset as TO;
3178 // find offset from the start of current range to current cursor position
3179 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3180
3181 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3182 let start_difference = start_offset - start_byte_offset;
3183 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3184 let end_difference = end_offset - start_byte_offset;
3185 // Current range has associated linked ranges.
3186 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3187 for range in linked_ranges.iter() {
3188 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3189 let end_offset = start_offset + end_difference;
3190 let start_offset = start_offset + start_difference;
3191 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3192 continue;
3193 }
3194 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3195 if s.start.buffer_id != selection.start.buffer_id
3196 || s.end.buffer_id != selection.end.buffer_id
3197 {
3198 return false;
3199 }
3200 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3201 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3202 }) {
3203 continue;
3204 }
3205 let start = buffer_snapshot.anchor_after(start_offset);
3206 let end = buffer_snapshot.anchor_after(end_offset);
3207 linked_edits
3208 .entry(buffer.clone())
3209 .or_default()
3210 .push(start..end);
3211 }
3212 Some(linked_edits)
3213 }
3214
3215 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3216 let text: Arc<str> = text.into();
3217
3218 if self.read_only(cx) {
3219 return;
3220 }
3221
3222 let selections = self.selections.all_adjusted(cx);
3223 let mut bracket_inserted = false;
3224 let mut edits = Vec::new();
3225 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3226 let mut new_selections = Vec::with_capacity(selections.len());
3227 let mut new_autoclose_regions = Vec::new();
3228 let snapshot = self.buffer.read(cx).read(cx);
3229
3230 for (selection, autoclose_region) in
3231 self.selections_with_autoclose_regions(selections, &snapshot)
3232 {
3233 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3234 // Determine if the inserted text matches the opening or closing
3235 // bracket of any of this language's bracket pairs.
3236 let mut bracket_pair = None;
3237 let mut is_bracket_pair_start = false;
3238 let mut is_bracket_pair_end = false;
3239 if !text.is_empty() {
3240 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3241 // and they are removing the character that triggered IME popup.
3242 for (pair, enabled) in scope.brackets() {
3243 if !pair.close && !pair.surround {
3244 continue;
3245 }
3246
3247 if enabled && pair.start.ends_with(text.as_ref()) {
3248 bracket_pair = Some(pair.clone());
3249 is_bracket_pair_start = true;
3250 break;
3251 }
3252 if pair.end.as_str() == text.as_ref() {
3253 bracket_pair = Some(pair.clone());
3254 is_bracket_pair_end = true;
3255 break;
3256 }
3257 }
3258 }
3259
3260 if let Some(bracket_pair) = bracket_pair {
3261 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3262 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3263 let auto_surround =
3264 self.use_auto_surround && snapshot_settings.use_auto_surround;
3265 if selection.is_empty() {
3266 if is_bracket_pair_start {
3267 let prefix_len = bracket_pair.start.len() - text.len();
3268
3269 // If the inserted text is a suffix of an opening bracket and the
3270 // selection is preceded by the rest of the opening bracket, then
3271 // insert the closing bracket.
3272 let following_text_allows_autoclose = snapshot
3273 .chars_at(selection.start)
3274 .next()
3275 .map_or(true, |c| scope.should_autoclose_before(c));
3276 let preceding_text_matches_prefix = prefix_len == 0
3277 || (selection.start.column >= (prefix_len as u32)
3278 && snapshot.contains_str_at(
3279 Point::new(
3280 selection.start.row,
3281 selection.start.column - (prefix_len as u32),
3282 ),
3283 &bracket_pair.start[..prefix_len],
3284 ));
3285
3286 if autoclose
3287 && bracket_pair.close
3288 && following_text_allows_autoclose
3289 && preceding_text_matches_prefix
3290 {
3291 let anchor = snapshot.anchor_before(selection.end);
3292 new_selections.push((selection.map(|_| anchor), text.len()));
3293 new_autoclose_regions.push((
3294 anchor,
3295 text.len(),
3296 selection.id,
3297 bracket_pair.clone(),
3298 ));
3299 edits.push((
3300 selection.range(),
3301 format!("{}{}", text, bracket_pair.end).into(),
3302 ));
3303 bracket_inserted = true;
3304 continue;
3305 }
3306 }
3307
3308 if let Some(region) = autoclose_region {
3309 // If the selection is followed by an auto-inserted closing bracket,
3310 // then don't insert that closing bracket again; just move the selection
3311 // past the closing bracket.
3312 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3313 && text.as_ref() == region.pair.end.as_str();
3314 if should_skip {
3315 let anchor = snapshot.anchor_after(selection.end);
3316 new_selections
3317 .push((selection.map(|_| anchor), region.pair.end.len()));
3318 continue;
3319 }
3320 }
3321
3322 let always_treat_brackets_as_autoclosed = snapshot
3323 .settings_at(selection.start, cx)
3324 .always_treat_brackets_as_autoclosed;
3325 if always_treat_brackets_as_autoclosed
3326 && is_bracket_pair_end
3327 && snapshot.contains_str_at(selection.end, text.as_ref())
3328 {
3329 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3330 // and the inserted text is a closing bracket and the selection is followed
3331 // by the closing bracket then move the selection past the closing bracket.
3332 let anchor = snapshot.anchor_after(selection.end);
3333 new_selections.push((selection.map(|_| anchor), text.len()));
3334 continue;
3335 }
3336 }
3337 // If an opening bracket is 1 character long and is typed while
3338 // text is selected, then surround that text with the bracket pair.
3339 else if auto_surround
3340 && bracket_pair.surround
3341 && is_bracket_pair_start
3342 && bracket_pair.start.chars().count() == 1
3343 {
3344 edits.push((selection.start..selection.start, text.clone()));
3345 edits.push((
3346 selection.end..selection.end,
3347 bracket_pair.end.as_str().into(),
3348 ));
3349 bracket_inserted = true;
3350 new_selections.push((
3351 Selection {
3352 id: selection.id,
3353 start: snapshot.anchor_after(selection.start),
3354 end: snapshot.anchor_before(selection.end),
3355 reversed: selection.reversed,
3356 goal: selection.goal,
3357 },
3358 0,
3359 ));
3360 continue;
3361 }
3362 }
3363 }
3364
3365 if self.auto_replace_emoji_shortcode
3366 && selection.is_empty()
3367 && text.as_ref().ends_with(':')
3368 {
3369 if let Some(possible_emoji_short_code) =
3370 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3371 {
3372 if !possible_emoji_short_code.is_empty() {
3373 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3374 let emoji_shortcode_start = Point::new(
3375 selection.start.row,
3376 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3377 );
3378
3379 // Remove shortcode from buffer
3380 edits.push((
3381 emoji_shortcode_start..selection.start,
3382 "".to_string().into(),
3383 ));
3384 new_selections.push((
3385 Selection {
3386 id: selection.id,
3387 start: snapshot.anchor_after(emoji_shortcode_start),
3388 end: snapshot.anchor_before(selection.start),
3389 reversed: selection.reversed,
3390 goal: selection.goal,
3391 },
3392 0,
3393 ));
3394
3395 // Insert emoji
3396 let selection_start_anchor = snapshot.anchor_after(selection.start);
3397 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3398 edits.push((selection.start..selection.end, emoji.to_string().into()));
3399
3400 continue;
3401 }
3402 }
3403 }
3404 }
3405
3406 // If not handling any auto-close operation, then just replace the selected
3407 // text with the given input and move the selection to the end of the
3408 // newly inserted text.
3409 let anchor = snapshot.anchor_after(selection.end);
3410 if !self.linked_edit_ranges.is_empty() {
3411 let start_anchor = snapshot.anchor_before(selection.start);
3412
3413 let is_word_char = text.chars().next().map_or(true, |char| {
3414 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3415 classifier.is_word(char)
3416 });
3417
3418 if is_word_char {
3419 if let Some(ranges) = self
3420 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3421 {
3422 for (buffer, edits) in ranges {
3423 linked_edits
3424 .entry(buffer.clone())
3425 .or_default()
3426 .extend(edits.into_iter().map(|range| (range, text.clone())));
3427 }
3428 }
3429 }
3430 }
3431
3432 new_selections.push((selection.map(|_| anchor), 0));
3433 edits.push((selection.start..selection.end, text.clone()));
3434 }
3435
3436 drop(snapshot);
3437
3438 self.transact(cx, |this, cx| {
3439 this.buffer.update(cx, |buffer, cx| {
3440 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3441 });
3442 for (buffer, edits) in linked_edits {
3443 buffer.update(cx, |buffer, cx| {
3444 let snapshot = buffer.snapshot();
3445 let edits = edits
3446 .into_iter()
3447 .map(|(range, text)| {
3448 use text::ToPoint as TP;
3449 let end_point = TP::to_point(&range.end, &snapshot);
3450 let start_point = TP::to_point(&range.start, &snapshot);
3451 (start_point..end_point, text)
3452 })
3453 .sorted_by_key(|(range, _)| range.start)
3454 .collect::<Vec<_>>();
3455 buffer.edit(edits, None, cx);
3456 })
3457 }
3458 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3459 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3460 let snapshot = this.buffer.read(cx).read(cx);
3461 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
3462 .zip(new_selection_deltas)
3463 .map(|(selection, delta)| Selection {
3464 id: selection.id,
3465 start: selection.start + delta,
3466 end: selection.end + delta,
3467 reversed: selection.reversed,
3468 goal: SelectionGoal::None,
3469 })
3470 .collect::<Vec<_>>();
3471
3472 let mut i = 0;
3473 for (position, delta, selection_id, pair) in new_autoclose_regions {
3474 let position = position.to_offset(&snapshot) + delta;
3475 let start = snapshot.anchor_before(position);
3476 let end = snapshot.anchor_after(position);
3477 while let Some(existing_state) = this.autoclose_regions.get(i) {
3478 match existing_state.range.start.cmp(&start, &snapshot) {
3479 Ordering::Less => i += 1,
3480 Ordering::Greater => break,
3481 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
3482 Ordering::Less => i += 1,
3483 Ordering::Equal => break,
3484 Ordering::Greater => break,
3485 },
3486 }
3487 }
3488 this.autoclose_regions.insert(
3489 i,
3490 AutocloseRegion {
3491 selection_id,
3492 range: start..end,
3493 pair,
3494 },
3495 );
3496 }
3497
3498 drop(snapshot);
3499 let had_active_inline_completion = this.has_active_inline_completion(cx);
3500 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3501 s.select(new_selections)
3502 });
3503
3504 if !bracket_inserted {
3505 if let Some(on_type_format_task) =
3506 this.trigger_on_type_formatting(text.to_string(), cx)
3507 {
3508 on_type_format_task.detach_and_log_err(cx);
3509 }
3510 }
3511
3512 let editor_settings = EditorSettings::get_global(cx);
3513 if bracket_inserted
3514 && (editor_settings.auto_signature_help
3515 || editor_settings.show_signature_help_after_edits)
3516 {
3517 this.show_signature_help(&ShowSignatureHelp, cx);
3518 }
3519
3520 let trigger_in_words = !had_active_inline_completion;
3521 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3522 linked_editing_ranges::refresh_linked_ranges(this, cx);
3523 this.refresh_inline_completion(true, false, cx);
3524 });
3525 }
3526
3527 fn find_possible_emoji_shortcode_at_position(
3528 snapshot: &MultiBufferSnapshot,
3529 position: Point,
3530 ) -> Option<String> {
3531 let mut chars = Vec::new();
3532 let mut found_colon = false;
3533 for char in snapshot.reversed_chars_at(position).take(100) {
3534 // Found a possible emoji shortcode in the middle of the buffer
3535 if found_colon {
3536 if char.is_whitespace() {
3537 chars.reverse();
3538 return Some(chars.iter().collect());
3539 }
3540 // If the previous character is not a whitespace, we are in the middle of a word
3541 // and we only want to complete the shortcode if the word is made up of other emojis
3542 let mut containing_word = String::new();
3543 for ch in snapshot
3544 .reversed_chars_at(position)
3545 .skip(chars.len() + 1)
3546 .take(100)
3547 {
3548 if ch.is_whitespace() {
3549 break;
3550 }
3551 containing_word.push(ch);
3552 }
3553 let containing_word = containing_word.chars().rev().collect::<String>();
3554 if util::word_consists_of_emojis(containing_word.as_str()) {
3555 chars.reverse();
3556 return Some(chars.iter().collect());
3557 }
3558 }
3559
3560 if char.is_whitespace() || !char.is_ascii() {
3561 return None;
3562 }
3563 if char == ':' {
3564 found_colon = true;
3565 } else {
3566 chars.push(char);
3567 }
3568 }
3569 // Found a possible emoji shortcode at the beginning of the buffer
3570 chars.reverse();
3571 Some(chars.iter().collect())
3572 }
3573
3574 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3575 self.transact(cx, |this, cx| {
3576 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3577 let selections = this.selections.all::<usize>(cx);
3578 let multi_buffer = this.buffer.read(cx);
3579 let buffer = multi_buffer.snapshot(cx);
3580 selections
3581 .iter()
3582 .map(|selection| {
3583 let start_point = selection.start.to_point(&buffer);
3584 let mut indent =
3585 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3586 indent.len = cmp::min(indent.len, start_point.column);
3587 let start = selection.start;
3588 let end = selection.end;
3589 let selection_is_empty = start == end;
3590 let language_scope = buffer.language_scope_at(start);
3591 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3592 &language_scope
3593 {
3594 let leading_whitespace_len = buffer
3595 .reversed_chars_at(start)
3596 .take_while(|c| c.is_whitespace() && *c != '\n')
3597 .map(|c| c.len_utf8())
3598 .sum::<usize>();
3599
3600 let trailing_whitespace_len = buffer
3601 .chars_at(end)
3602 .take_while(|c| c.is_whitespace() && *c != '\n')
3603 .map(|c| c.len_utf8())
3604 .sum::<usize>();
3605
3606 let insert_extra_newline =
3607 language.brackets().any(|(pair, enabled)| {
3608 let pair_start = pair.start.trim_end();
3609 let pair_end = pair.end.trim_start();
3610
3611 enabled
3612 && pair.newline
3613 && buffer.contains_str_at(
3614 end + trailing_whitespace_len,
3615 pair_end,
3616 )
3617 && buffer.contains_str_at(
3618 (start - leading_whitespace_len)
3619 .saturating_sub(pair_start.len()),
3620 pair_start,
3621 )
3622 });
3623
3624 // Comment extension on newline is allowed only for cursor selections
3625 let comment_delimiter = maybe!({
3626 if !selection_is_empty {
3627 return None;
3628 }
3629
3630 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3631 return None;
3632 }
3633
3634 let delimiters = language.line_comment_prefixes();
3635 let max_len_of_delimiter =
3636 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3637 let (snapshot, range) =
3638 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3639
3640 let mut index_of_first_non_whitespace = 0;
3641 let comment_candidate = snapshot
3642 .chars_for_range(range)
3643 .skip_while(|c| {
3644 let should_skip = c.is_whitespace();
3645 if should_skip {
3646 index_of_first_non_whitespace += 1;
3647 }
3648 should_skip
3649 })
3650 .take(max_len_of_delimiter)
3651 .collect::<String>();
3652 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3653 comment_candidate.starts_with(comment_prefix.as_ref())
3654 })?;
3655 let cursor_is_placed_after_comment_marker =
3656 index_of_first_non_whitespace + comment_prefix.len()
3657 <= start_point.column as usize;
3658 if cursor_is_placed_after_comment_marker {
3659 Some(comment_prefix.clone())
3660 } else {
3661 None
3662 }
3663 });
3664 (comment_delimiter, insert_extra_newline)
3665 } else {
3666 (None, false)
3667 };
3668
3669 let capacity_for_delimiter = comment_delimiter
3670 .as_deref()
3671 .map(str::len)
3672 .unwrap_or_default();
3673 let mut new_text =
3674 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3675 new_text.push('\n');
3676 new_text.extend(indent.chars());
3677 if let Some(delimiter) = &comment_delimiter {
3678 new_text.push_str(delimiter);
3679 }
3680 if insert_extra_newline {
3681 new_text = new_text.repeat(2);
3682 }
3683
3684 let anchor = buffer.anchor_after(end);
3685 let new_selection = selection.map(|_| anchor);
3686 (
3687 (start..end, new_text),
3688 (insert_extra_newline, new_selection),
3689 )
3690 })
3691 .unzip()
3692 };
3693
3694 this.edit_with_autoindent(edits, cx);
3695 let buffer = this.buffer.read(cx).snapshot(cx);
3696 let new_selections = selection_fixup_info
3697 .into_iter()
3698 .map(|(extra_newline_inserted, new_selection)| {
3699 let mut cursor = new_selection.end.to_point(&buffer);
3700 if extra_newline_inserted {
3701 cursor.row -= 1;
3702 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3703 }
3704 new_selection.map(|_| cursor)
3705 })
3706 .collect();
3707
3708 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3709 this.refresh_inline_completion(true, false, cx);
3710 });
3711 }
3712
3713 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3714 let buffer = self.buffer.read(cx);
3715 let snapshot = buffer.snapshot(cx);
3716
3717 let mut edits = Vec::new();
3718 let mut rows = Vec::new();
3719
3720 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3721 let cursor = selection.head();
3722 let row = cursor.row;
3723
3724 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3725
3726 let newline = "\n".to_string();
3727 edits.push((start_of_line..start_of_line, newline));
3728
3729 rows.push(row + rows_inserted as u32);
3730 }
3731
3732 self.transact(cx, |editor, cx| {
3733 editor.edit(edits, cx);
3734
3735 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3736 let mut index = 0;
3737 s.move_cursors_with(|map, _, _| {
3738 let row = rows[index];
3739 index += 1;
3740
3741 let point = Point::new(row, 0);
3742 let boundary = map.next_line_boundary(point).1;
3743 let clipped = map.clip_point(boundary, Bias::Left);
3744
3745 (clipped, SelectionGoal::None)
3746 });
3747 });
3748
3749 let mut indent_edits = Vec::new();
3750 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3751 for row in rows {
3752 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3753 for (row, indent) in indents {
3754 if indent.len == 0 {
3755 continue;
3756 }
3757
3758 let text = match indent.kind {
3759 IndentKind::Space => " ".repeat(indent.len as usize),
3760 IndentKind::Tab => "\t".repeat(indent.len as usize),
3761 };
3762 let point = Point::new(row.0, 0);
3763 indent_edits.push((point..point, text));
3764 }
3765 }
3766 editor.edit(indent_edits, cx);
3767 });
3768 }
3769
3770 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3771 let buffer = self.buffer.read(cx);
3772 let snapshot = buffer.snapshot(cx);
3773
3774 let mut edits = Vec::new();
3775 let mut rows = Vec::new();
3776 let mut rows_inserted = 0;
3777
3778 for selection in self.selections.all_adjusted(cx) {
3779 let cursor = selection.head();
3780 let row = cursor.row;
3781
3782 let point = Point::new(row + 1, 0);
3783 let start_of_line = snapshot.clip_point(point, Bias::Left);
3784
3785 let newline = "\n".to_string();
3786 edits.push((start_of_line..start_of_line, newline));
3787
3788 rows_inserted += 1;
3789 rows.push(row + rows_inserted);
3790 }
3791
3792 self.transact(cx, |editor, cx| {
3793 editor.edit(edits, cx);
3794
3795 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3796 let mut index = 0;
3797 s.move_cursors_with(|map, _, _| {
3798 let row = rows[index];
3799 index += 1;
3800
3801 let point = Point::new(row, 0);
3802 let boundary = map.next_line_boundary(point).1;
3803 let clipped = map.clip_point(boundary, Bias::Left);
3804
3805 (clipped, SelectionGoal::None)
3806 });
3807 });
3808
3809 let mut indent_edits = Vec::new();
3810 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3811 for row in rows {
3812 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3813 for (row, indent) in indents {
3814 if indent.len == 0 {
3815 continue;
3816 }
3817
3818 let text = match indent.kind {
3819 IndentKind::Space => " ".repeat(indent.len as usize),
3820 IndentKind::Tab => "\t".repeat(indent.len as usize),
3821 };
3822 let point = Point::new(row.0, 0);
3823 indent_edits.push((point..point, text));
3824 }
3825 }
3826 editor.edit(indent_edits, cx);
3827 });
3828 }
3829
3830 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3831 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3832 original_indent_columns: Vec::new(),
3833 });
3834 self.insert_with_autoindent_mode(text, autoindent, cx);
3835 }
3836
3837 fn insert_with_autoindent_mode(
3838 &mut self,
3839 text: &str,
3840 autoindent_mode: Option<AutoindentMode>,
3841 cx: &mut ViewContext<Self>,
3842 ) {
3843 if self.read_only(cx) {
3844 return;
3845 }
3846
3847 let text: Arc<str> = text.into();
3848 self.transact(cx, |this, cx| {
3849 let old_selections = this.selections.all_adjusted(cx);
3850 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3851 let anchors = {
3852 let snapshot = buffer.read(cx);
3853 old_selections
3854 .iter()
3855 .map(|s| {
3856 let anchor = snapshot.anchor_after(s.head());
3857 s.map(|_| anchor)
3858 })
3859 .collect::<Vec<_>>()
3860 };
3861 buffer.edit(
3862 old_selections
3863 .iter()
3864 .map(|s| (s.start..s.end, text.clone())),
3865 autoindent_mode,
3866 cx,
3867 );
3868 anchors
3869 });
3870
3871 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3872 s.select_anchors(selection_anchors);
3873 })
3874 });
3875 }
3876
3877 fn trigger_completion_on_input(
3878 &mut self,
3879 text: &str,
3880 trigger_in_words: bool,
3881 cx: &mut ViewContext<Self>,
3882 ) {
3883 if self.is_completion_trigger(text, trigger_in_words, cx) {
3884 self.show_completions(
3885 &ShowCompletions {
3886 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3887 },
3888 cx,
3889 );
3890 } else {
3891 self.hide_context_menu(cx);
3892 }
3893 }
3894
3895 fn is_completion_trigger(
3896 &self,
3897 text: &str,
3898 trigger_in_words: bool,
3899 cx: &mut ViewContext<Self>,
3900 ) -> bool {
3901 let position = self.selections.newest_anchor().head();
3902 let multibuffer = self.buffer.read(cx);
3903 let Some(buffer) = position
3904 .buffer_id
3905 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3906 else {
3907 return false;
3908 };
3909
3910 if let Some(completion_provider) = &self.completion_provider {
3911 completion_provider.is_completion_trigger(
3912 &buffer,
3913 position.text_anchor,
3914 text,
3915 trigger_in_words,
3916 cx,
3917 )
3918 } else {
3919 false
3920 }
3921 }
3922
3923 /// If any empty selections is touching the start of its innermost containing autoclose
3924 /// region, expand it to select the brackets.
3925 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3926 let selections = self.selections.all::<usize>(cx);
3927 let buffer = self.buffer.read(cx).read(cx);
3928 let new_selections = self
3929 .selections_with_autoclose_regions(selections, &buffer)
3930 .map(|(mut selection, region)| {
3931 if !selection.is_empty() {
3932 return selection;
3933 }
3934
3935 if let Some(region) = region {
3936 let mut range = region.range.to_offset(&buffer);
3937 if selection.start == range.start && range.start >= region.pair.start.len() {
3938 range.start -= region.pair.start.len();
3939 if buffer.contains_str_at(range.start, ®ion.pair.start)
3940 && buffer.contains_str_at(range.end, ®ion.pair.end)
3941 {
3942 range.end += region.pair.end.len();
3943 selection.start = range.start;
3944 selection.end = range.end;
3945
3946 return selection;
3947 }
3948 }
3949 }
3950
3951 let always_treat_brackets_as_autoclosed = buffer
3952 .settings_at(selection.start, cx)
3953 .always_treat_brackets_as_autoclosed;
3954
3955 if !always_treat_brackets_as_autoclosed {
3956 return selection;
3957 }
3958
3959 if let Some(scope) = buffer.language_scope_at(selection.start) {
3960 for (pair, enabled) in scope.brackets() {
3961 if !enabled || !pair.close {
3962 continue;
3963 }
3964
3965 if buffer.contains_str_at(selection.start, &pair.end) {
3966 let pair_start_len = pair.start.len();
3967 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3968 {
3969 selection.start -= pair_start_len;
3970 selection.end += pair.end.len();
3971
3972 return selection;
3973 }
3974 }
3975 }
3976 }
3977
3978 selection
3979 })
3980 .collect();
3981
3982 drop(buffer);
3983 self.change_selections(None, cx, |selections| selections.select(new_selections));
3984 }
3985
3986 /// Iterate the given selections, and for each one, find the smallest surrounding
3987 /// autoclose region. This uses the ordering of the selections and the autoclose
3988 /// regions to avoid repeated comparisons.
3989 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3990 &'a self,
3991 selections: impl IntoIterator<Item = Selection<D>>,
3992 buffer: &'a MultiBufferSnapshot,
3993 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3994 let mut i = 0;
3995 let mut regions = self.autoclose_regions.as_slice();
3996 selections.into_iter().map(move |selection| {
3997 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3998
3999 let mut enclosing = None;
4000 while let Some(pair_state) = regions.get(i) {
4001 if pair_state.range.end.to_offset(buffer) < range.start {
4002 regions = ®ions[i + 1..];
4003 i = 0;
4004 } else if pair_state.range.start.to_offset(buffer) > range.end {
4005 break;
4006 } else {
4007 if pair_state.selection_id == selection.id {
4008 enclosing = Some(pair_state);
4009 }
4010 i += 1;
4011 }
4012 }
4013
4014 (selection.clone(), enclosing)
4015 })
4016 }
4017
4018 /// Remove any autoclose regions that no longer contain their selection.
4019 fn invalidate_autoclose_regions(
4020 &mut self,
4021 mut selections: &[Selection<Anchor>],
4022 buffer: &MultiBufferSnapshot,
4023 ) {
4024 self.autoclose_regions.retain(|state| {
4025 let mut i = 0;
4026 while let Some(selection) = selections.get(i) {
4027 if selection.end.cmp(&state.range.start, buffer).is_lt() {
4028 selections = &selections[1..];
4029 continue;
4030 }
4031 if selection.start.cmp(&state.range.end, buffer).is_gt() {
4032 break;
4033 }
4034 if selection.id == state.selection_id {
4035 return true;
4036 } else {
4037 i += 1;
4038 }
4039 }
4040 false
4041 });
4042 }
4043
4044 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
4045 let offset = position.to_offset(buffer);
4046 let (word_range, kind) = buffer.surrounding_word(offset, true);
4047 if offset > word_range.start && kind == Some(CharKind::Word) {
4048 Some(
4049 buffer
4050 .text_for_range(word_range.start..offset)
4051 .collect::<String>(),
4052 )
4053 } else {
4054 None
4055 }
4056 }
4057
4058 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
4059 self.refresh_inlay_hints(
4060 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
4061 cx,
4062 );
4063 }
4064
4065 pub fn inlay_hints_enabled(&self) -> bool {
4066 self.inlay_hint_cache.enabled
4067 }
4068
4069 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
4070 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
4071 return;
4072 }
4073
4074 let reason_description = reason.description();
4075 let ignore_debounce = matches!(
4076 reason,
4077 InlayHintRefreshReason::SettingsChange(_)
4078 | InlayHintRefreshReason::Toggle(_)
4079 | InlayHintRefreshReason::ExcerptsRemoved(_)
4080 );
4081 let (invalidate_cache, required_languages) = match reason {
4082 InlayHintRefreshReason::Toggle(enabled) => {
4083 self.inlay_hint_cache.enabled = enabled;
4084 if enabled {
4085 (InvalidationStrategy::RefreshRequested, None)
4086 } else {
4087 self.inlay_hint_cache.clear();
4088 self.splice_inlays(
4089 self.visible_inlay_hints(cx)
4090 .iter()
4091 .map(|inlay| inlay.id)
4092 .collect(),
4093 Vec::new(),
4094 cx,
4095 );
4096 return;
4097 }
4098 }
4099 InlayHintRefreshReason::SettingsChange(new_settings) => {
4100 match self.inlay_hint_cache.update_settings(
4101 &self.buffer,
4102 new_settings,
4103 self.visible_inlay_hints(cx),
4104 cx,
4105 ) {
4106 ControlFlow::Break(Some(InlaySplice {
4107 to_remove,
4108 to_insert,
4109 })) => {
4110 self.splice_inlays(to_remove, to_insert, cx);
4111 return;
4112 }
4113 ControlFlow::Break(None) => return,
4114 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4115 }
4116 }
4117 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4118 if let Some(InlaySplice {
4119 to_remove,
4120 to_insert,
4121 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4122 {
4123 self.splice_inlays(to_remove, to_insert, cx);
4124 }
4125 return;
4126 }
4127 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4128 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4129 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4130 }
4131 InlayHintRefreshReason::RefreshRequested => {
4132 (InvalidationStrategy::RefreshRequested, None)
4133 }
4134 };
4135
4136 if let Some(InlaySplice {
4137 to_remove,
4138 to_insert,
4139 }) = self.inlay_hint_cache.spawn_hint_refresh(
4140 reason_description,
4141 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4142 invalidate_cache,
4143 ignore_debounce,
4144 cx,
4145 ) {
4146 self.splice_inlays(to_remove, to_insert, cx);
4147 }
4148 }
4149
4150 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4151 self.display_map
4152 .read(cx)
4153 .current_inlays()
4154 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4155 .cloned()
4156 .collect()
4157 }
4158
4159 pub fn excerpts_for_inlay_hints_query(
4160 &self,
4161 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4162 cx: &mut ViewContext<Editor>,
4163 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4164 let Some(project) = self.project.as_ref() else {
4165 return HashMap::default();
4166 };
4167 let project = project.read(cx);
4168 let multi_buffer = self.buffer().read(cx);
4169 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4170 let multi_buffer_visible_start = self
4171 .scroll_manager
4172 .anchor()
4173 .anchor
4174 .to_point(&multi_buffer_snapshot);
4175 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4176 multi_buffer_visible_start
4177 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4178 Bias::Left,
4179 );
4180 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4181 multi_buffer
4182 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4183 .into_iter()
4184 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4185 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4186 let buffer = buffer_handle.read(cx);
4187 let buffer_file = project::File::from_dyn(buffer.file())?;
4188 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4189 let worktree_entry = buffer_worktree
4190 .read(cx)
4191 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4192 if worktree_entry.is_ignored {
4193 return None;
4194 }
4195
4196 let language = buffer.language()?;
4197 if let Some(restrict_to_languages) = restrict_to_languages {
4198 if !restrict_to_languages.contains(language) {
4199 return None;
4200 }
4201 }
4202 Some((
4203 excerpt_id,
4204 (
4205 buffer_handle,
4206 buffer.version().clone(),
4207 excerpt_visible_range,
4208 ),
4209 ))
4210 })
4211 .collect()
4212 }
4213
4214 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4215 TextLayoutDetails {
4216 text_system: cx.text_system().clone(),
4217 editor_style: self.style.clone().unwrap(),
4218 rem_size: cx.rem_size(),
4219 scroll_anchor: self.scroll_manager.anchor(),
4220 visible_rows: self.visible_line_count(),
4221 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4222 }
4223 }
4224
4225 fn splice_inlays(
4226 &self,
4227 to_remove: Vec<InlayId>,
4228 to_insert: Vec<Inlay>,
4229 cx: &mut ViewContext<Self>,
4230 ) {
4231 self.display_map.update(cx, |display_map, cx| {
4232 display_map.splice_inlays(to_remove, to_insert, cx);
4233 });
4234 cx.notify();
4235 }
4236
4237 fn trigger_on_type_formatting(
4238 &self,
4239 input: String,
4240 cx: &mut ViewContext<Self>,
4241 ) -> Option<Task<Result<()>>> {
4242 if input.len() != 1 {
4243 return None;
4244 }
4245
4246 let project = self.project.as_ref()?;
4247 let position = self.selections.newest_anchor().head();
4248 let (buffer, buffer_position) = self
4249 .buffer
4250 .read(cx)
4251 .text_anchor_for_position(position, cx)?;
4252
4253 let settings = language_settings::language_settings(
4254 buffer.read(cx).language_at(buffer_position).as_ref(),
4255 buffer.read(cx).file(),
4256 cx,
4257 );
4258 if !settings.use_on_type_format {
4259 return None;
4260 }
4261
4262 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4263 // hence we do LSP request & edit on host side only — add formats to host's history.
4264 let push_to_lsp_host_history = true;
4265 // If this is not the host, append its history with new edits.
4266 let push_to_client_history = project.read(cx).is_via_collab();
4267
4268 let on_type_formatting = project.update(cx, |project, cx| {
4269 project.on_type_format(
4270 buffer.clone(),
4271 buffer_position,
4272 input,
4273 push_to_lsp_host_history,
4274 cx,
4275 )
4276 });
4277 Some(cx.spawn(|editor, mut cx| async move {
4278 if let Some(transaction) = on_type_formatting.await? {
4279 if push_to_client_history {
4280 buffer
4281 .update(&mut cx, |buffer, _| {
4282 buffer.push_transaction(transaction, Instant::now());
4283 })
4284 .ok();
4285 }
4286 editor.update(&mut cx, |editor, cx| {
4287 editor.refresh_document_highlights(cx);
4288 })?;
4289 }
4290 Ok(())
4291 }))
4292 }
4293
4294 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4295 if self.pending_rename.is_some() {
4296 return;
4297 }
4298
4299 let Some(provider) = self.completion_provider.as_ref() else {
4300 return;
4301 };
4302
4303 let position = self.selections.newest_anchor().head();
4304 let (buffer, buffer_position) =
4305 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4306 output
4307 } else {
4308 return;
4309 };
4310
4311 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4312 let is_followup_invoke = {
4313 let context_menu_state = self.context_menu.read();
4314 matches!(
4315 context_menu_state.deref(),
4316 Some(ContextMenu::Completions(_))
4317 )
4318 };
4319 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4320 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4321 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4322 CompletionTriggerKind::TRIGGER_CHARACTER
4323 }
4324
4325 _ => CompletionTriggerKind::INVOKED,
4326 };
4327 let completion_context = CompletionContext {
4328 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4329 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4330 Some(String::from(trigger))
4331 } else {
4332 None
4333 }
4334 }),
4335 trigger_kind,
4336 };
4337 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4338 let sort_completions = provider.sort_completions();
4339
4340 let id = post_inc(&mut self.next_completion_id);
4341 let task = cx.spawn(|this, mut cx| {
4342 async move {
4343 this.update(&mut cx, |this, _| {
4344 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4345 })?;
4346 let completions = completions.await.log_err();
4347 let menu = if let Some(completions) = completions {
4348 let mut menu = CompletionsMenu {
4349 id,
4350 sort_completions,
4351 initial_position: position,
4352 match_candidates: completions
4353 .iter()
4354 .enumerate()
4355 .map(|(id, completion)| {
4356 StringMatchCandidate::new(
4357 id,
4358 completion.label.text[completion.label.filter_range.clone()]
4359 .into(),
4360 )
4361 })
4362 .collect(),
4363 buffer: buffer.clone(),
4364 completions: Arc::new(RwLock::new(completions.into())),
4365 matches: Vec::new().into(),
4366 selected_item: 0,
4367 scroll_handle: UniformListScrollHandle::new(),
4368 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4369 DebouncedDelay::new(),
4370 )),
4371 };
4372 menu.filter(query.as_deref(), cx.background_executor().clone())
4373 .await;
4374
4375 if menu.matches.is_empty() {
4376 None
4377 } else {
4378 this.update(&mut cx, |editor, cx| {
4379 let completions = menu.completions.clone();
4380 let matches = menu.matches.clone();
4381
4382 let delay_ms = EditorSettings::get_global(cx)
4383 .completion_documentation_secondary_query_debounce;
4384 let delay = Duration::from_millis(delay_ms);
4385 editor
4386 .completion_documentation_pre_resolve_debounce
4387 .fire_new(delay, cx, |editor, cx| {
4388 CompletionsMenu::pre_resolve_completion_documentation(
4389 buffer,
4390 completions,
4391 matches,
4392 editor,
4393 cx,
4394 )
4395 });
4396 })
4397 .ok();
4398 Some(menu)
4399 }
4400 } else {
4401 None
4402 };
4403
4404 this.update(&mut cx, |this, cx| {
4405 let mut context_menu = this.context_menu.write();
4406 match context_menu.as_ref() {
4407 None => {}
4408
4409 Some(ContextMenu::Completions(prev_menu)) => {
4410 if prev_menu.id > id {
4411 return;
4412 }
4413 }
4414
4415 _ => return,
4416 }
4417
4418 if this.focus_handle.is_focused(cx) && menu.is_some() {
4419 let menu = menu.unwrap();
4420 *context_menu = Some(ContextMenu::Completions(menu));
4421 drop(context_menu);
4422 this.discard_inline_completion(false, cx);
4423 cx.notify();
4424 } else if this.completion_tasks.len() <= 1 {
4425 // If there are no more completion tasks and the last menu was
4426 // empty, we should hide it. If it was already hidden, we should
4427 // also show the copilot completion when available.
4428 drop(context_menu);
4429 if this.hide_context_menu(cx).is_none() {
4430 this.update_visible_inline_completion(cx);
4431 }
4432 }
4433 })?;
4434
4435 Ok::<_, anyhow::Error>(())
4436 }
4437 .log_err()
4438 });
4439
4440 self.completion_tasks.push((id, task));
4441 }
4442
4443 pub fn confirm_completion(
4444 &mut self,
4445 action: &ConfirmCompletion,
4446 cx: &mut ViewContext<Self>,
4447 ) -> Option<Task<Result<()>>> {
4448 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4449 }
4450
4451 pub fn compose_completion(
4452 &mut self,
4453 action: &ComposeCompletion,
4454 cx: &mut ViewContext<Self>,
4455 ) -> Option<Task<Result<()>>> {
4456 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4457 }
4458
4459 fn do_completion(
4460 &mut self,
4461 item_ix: Option<usize>,
4462 intent: CompletionIntent,
4463 cx: &mut ViewContext<Editor>,
4464 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4465 use language::ToOffset as _;
4466
4467 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4468 menu
4469 } else {
4470 return None;
4471 };
4472
4473 let mat = completions_menu
4474 .matches
4475 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4476 let buffer_handle = completions_menu.buffer;
4477 let completions = completions_menu.completions.read();
4478 let completion = completions.get(mat.candidate_id)?;
4479 cx.stop_propagation();
4480
4481 let snippet;
4482 let text;
4483
4484 if completion.is_snippet() {
4485 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4486 text = snippet.as_ref().unwrap().text.clone();
4487 } else {
4488 snippet = None;
4489 text = completion.new_text.clone();
4490 };
4491 let selections = self.selections.all::<usize>(cx);
4492 let buffer = buffer_handle.read(cx);
4493 let old_range = completion.old_range.to_offset(buffer);
4494 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4495
4496 let newest_selection = self.selections.newest_anchor();
4497 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4498 return None;
4499 }
4500
4501 let lookbehind = newest_selection
4502 .start
4503 .text_anchor
4504 .to_offset(buffer)
4505 .saturating_sub(old_range.start);
4506 let lookahead = old_range
4507 .end
4508 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4509 let mut common_prefix_len = old_text
4510 .bytes()
4511 .zip(text.bytes())
4512 .take_while(|(a, b)| a == b)
4513 .count();
4514
4515 let snapshot = self.buffer.read(cx).snapshot(cx);
4516 let mut range_to_replace: Option<Range<isize>> = None;
4517 let mut ranges = Vec::new();
4518 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4519 for selection in &selections {
4520 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4521 let start = selection.start.saturating_sub(lookbehind);
4522 let end = selection.end + lookahead;
4523 if selection.id == newest_selection.id {
4524 range_to_replace = Some(
4525 ((start + common_prefix_len) as isize - selection.start as isize)
4526 ..(end as isize - selection.start as isize),
4527 );
4528 }
4529 ranges.push(start + common_prefix_len..end);
4530 } else {
4531 common_prefix_len = 0;
4532 ranges.clear();
4533 ranges.extend(selections.iter().map(|s| {
4534 if s.id == newest_selection.id {
4535 range_to_replace = Some(
4536 old_range.start.to_offset_utf16(&snapshot).0 as isize
4537 - selection.start as isize
4538 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4539 - selection.start as isize,
4540 );
4541 old_range.clone()
4542 } else {
4543 s.start..s.end
4544 }
4545 }));
4546 break;
4547 }
4548 if !self.linked_edit_ranges.is_empty() {
4549 let start_anchor = snapshot.anchor_before(selection.head());
4550 let end_anchor = snapshot.anchor_after(selection.tail());
4551 if let Some(ranges) = self
4552 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4553 {
4554 for (buffer, edits) in ranges {
4555 linked_edits.entry(buffer.clone()).or_default().extend(
4556 edits
4557 .into_iter()
4558 .map(|range| (range, text[common_prefix_len..].to_owned())),
4559 );
4560 }
4561 }
4562 }
4563 }
4564 let text = &text[common_prefix_len..];
4565
4566 cx.emit(EditorEvent::InputHandled {
4567 utf16_range_to_replace: range_to_replace,
4568 text: text.into(),
4569 });
4570
4571 self.transact(cx, |this, cx| {
4572 if let Some(mut snippet) = snippet {
4573 snippet.text = text.to_string();
4574 for tabstop in snippet.tabstops.iter_mut().flatten() {
4575 tabstop.start -= common_prefix_len as isize;
4576 tabstop.end -= common_prefix_len as isize;
4577 }
4578
4579 this.insert_snippet(&ranges, snippet, cx).log_err();
4580 } else {
4581 this.buffer.update(cx, |buffer, cx| {
4582 buffer.edit(
4583 ranges.iter().map(|range| (range.clone(), text)),
4584 this.autoindent_mode.clone(),
4585 cx,
4586 );
4587 });
4588 }
4589 for (buffer, edits) in linked_edits {
4590 buffer.update(cx, |buffer, cx| {
4591 let snapshot = buffer.snapshot();
4592 let edits = edits
4593 .into_iter()
4594 .map(|(range, text)| {
4595 use text::ToPoint as TP;
4596 let end_point = TP::to_point(&range.end, &snapshot);
4597 let start_point = TP::to_point(&range.start, &snapshot);
4598 (start_point..end_point, text)
4599 })
4600 .sorted_by_key(|(range, _)| range.start)
4601 .collect::<Vec<_>>();
4602 buffer.edit(edits, None, cx);
4603 })
4604 }
4605
4606 this.refresh_inline_completion(true, false, cx);
4607 });
4608
4609 let show_new_completions_on_confirm = completion
4610 .confirm
4611 .as_ref()
4612 .map_or(false, |confirm| confirm(intent, cx));
4613 if show_new_completions_on_confirm {
4614 self.show_completions(&ShowCompletions { trigger: None }, cx);
4615 }
4616
4617 let provider = self.completion_provider.as_ref()?;
4618 let apply_edits = provider.apply_additional_edits_for_completion(
4619 buffer_handle,
4620 completion.clone(),
4621 true,
4622 cx,
4623 );
4624
4625 let editor_settings = EditorSettings::get_global(cx);
4626 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4627 // After the code completion is finished, users often want to know what signatures are needed.
4628 // so we should automatically call signature_help
4629 self.show_signature_help(&ShowSignatureHelp, cx);
4630 }
4631
4632 Some(cx.foreground_executor().spawn(async move {
4633 apply_edits.await?;
4634 Ok(())
4635 }))
4636 }
4637
4638 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4639 let mut context_menu = self.context_menu.write();
4640 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4641 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4642 // Toggle if we're selecting the same one
4643 *context_menu = None;
4644 cx.notify();
4645 return;
4646 } else {
4647 // Otherwise, clear it and start a new one
4648 *context_menu = None;
4649 cx.notify();
4650 }
4651 }
4652 drop(context_menu);
4653 let snapshot = self.snapshot(cx);
4654 let deployed_from_indicator = action.deployed_from_indicator;
4655 let mut task = self.code_actions_task.take();
4656 let action = action.clone();
4657 cx.spawn(|editor, mut cx| async move {
4658 while let Some(prev_task) = task {
4659 prev_task.await.log_err();
4660 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4661 }
4662
4663 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4664 if editor.focus_handle.is_focused(cx) {
4665 let multibuffer_point = action
4666 .deployed_from_indicator
4667 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4668 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4669 let (buffer, buffer_row) = snapshot
4670 .buffer_snapshot
4671 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4672 .and_then(|(buffer_snapshot, range)| {
4673 editor
4674 .buffer
4675 .read(cx)
4676 .buffer(buffer_snapshot.remote_id())
4677 .map(|buffer| (buffer, range.start.row))
4678 })?;
4679 let (_, code_actions) = editor
4680 .available_code_actions
4681 .clone()
4682 .and_then(|(location, code_actions)| {
4683 let snapshot = location.buffer.read(cx).snapshot();
4684 let point_range = location.range.to_point(&snapshot);
4685 let point_range = point_range.start.row..=point_range.end.row;
4686 if point_range.contains(&buffer_row) {
4687 Some((location, code_actions))
4688 } else {
4689 None
4690 }
4691 })
4692 .unzip();
4693 let buffer_id = buffer.read(cx).remote_id();
4694 let tasks = editor
4695 .tasks
4696 .get(&(buffer_id, buffer_row))
4697 .map(|t| Arc::new(t.to_owned()));
4698 if tasks.is_none() && code_actions.is_none() {
4699 return None;
4700 }
4701
4702 editor.completion_tasks.clear();
4703 editor.discard_inline_completion(false, cx);
4704 let task_context =
4705 tasks
4706 .as_ref()
4707 .zip(editor.project.clone())
4708 .map(|(tasks, project)| {
4709 let position = Point::new(buffer_row, tasks.column);
4710 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4711 let location = Location {
4712 buffer: buffer.clone(),
4713 range: range_start..range_start,
4714 };
4715 // Fill in the environmental variables from the tree-sitter captures
4716 let mut captured_task_variables = TaskVariables::default();
4717 for (capture_name, value) in tasks.extra_variables.clone() {
4718 captured_task_variables.insert(
4719 task::VariableName::Custom(capture_name.into()),
4720 value.clone(),
4721 );
4722 }
4723 project.update(cx, |project, cx| {
4724 project.task_store().update(cx, |task_store, cx| {
4725 task_store.task_context_for_location(
4726 captured_task_variables,
4727 location,
4728 cx,
4729 )
4730 })
4731 })
4732 });
4733
4734 Some(cx.spawn(|editor, mut cx| async move {
4735 let task_context = match task_context {
4736 Some(task_context) => task_context.await,
4737 None => None,
4738 };
4739 let resolved_tasks =
4740 tasks.zip(task_context).map(|(tasks, task_context)| {
4741 Arc::new(ResolvedTasks {
4742 templates: tasks
4743 .templates
4744 .iter()
4745 .filter_map(|(kind, template)| {
4746 template
4747 .resolve_task(&kind.to_id_base(), &task_context)
4748 .map(|task| (kind.clone(), task))
4749 })
4750 .collect(),
4751 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4752 multibuffer_point.row,
4753 tasks.column,
4754 )),
4755 })
4756 });
4757 let spawn_straight_away = resolved_tasks
4758 .as_ref()
4759 .map_or(false, |tasks| tasks.templates.len() == 1)
4760 && code_actions
4761 .as_ref()
4762 .map_or(true, |actions| actions.is_empty());
4763 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4764 *editor.context_menu.write() =
4765 Some(ContextMenu::CodeActions(CodeActionsMenu {
4766 buffer,
4767 actions: CodeActionContents {
4768 tasks: resolved_tasks,
4769 actions: code_actions,
4770 },
4771 selected_item: Default::default(),
4772 scroll_handle: UniformListScrollHandle::default(),
4773 deployed_from_indicator,
4774 }));
4775 if spawn_straight_away {
4776 if let Some(task) = editor.confirm_code_action(
4777 &ConfirmCodeAction { item_ix: Some(0) },
4778 cx,
4779 ) {
4780 cx.notify();
4781 return task;
4782 }
4783 }
4784 cx.notify();
4785 Task::ready(Ok(()))
4786 }) {
4787 task.await
4788 } else {
4789 Ok(())
4790 }
4791 }))
4792 } else {
4793 Some(Task::ready(Ok(())))
4794 }
4795 })?;
4796 if let Some(task) = spawned_test_task {
4797 task.await?;
4798 }
4799
4800 Ok::<_, anyhow::Error>(())
4801 })
4802 .detach_and_log_err(cx);
4803 }
4804
4805 pub fn confirm_code_action(
4806 &mut self,
4807 action: &ConfirmCodeAction,
4808 cx: &mut ViewContext<Self>,
4809 ) -> Option<Task<Result<()>>> {
4810 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4811 menu
4812 } else {
4813 return None;
4814 };
4815 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4816 let action = actions_menu.actions.get(action_ix)?;
4817 let title = action.label();
4818 let buffer = actions_menu.buffer;
4819 let workspace = self.workspace()?;
4820
4821 match action {
4822 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4823 workspace.update(cx, |workspace, cx| {
4824 workspace::tasks::schedule_resolved_task(
4825 workspace,
4826 task_source_kind,
4827 resolved_task,
4828 false,
4829 cx,
4830 );
4831
4832 Some(Task::ready(Ok(())))
4833 })
4834 }
4835 CodeActionsItem::CodeAction {
4836 excerpt_id,
4837 action,
4838 provider,
4839 } => {
4840 let apply_code_action =
4841 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4842 let workspace = workspace.downgrade();
4843 Some(cx.spawn(|editor, cx| async move {
4844 let project_transaction = apply_code_action.await?;
4845 Self::open_project_transaction(
4846 &editor,
4847 workspace,
4848 project_transaction,
4849 title,
4850 cx,
4851 )
4852 .await
4853 }))
4854 }
4855 }
4856 }
4857
4858 pub async fn open_project_transaction(
4859 this: &WeakView<Editor>,
4860 workspace: WeakView<Workspace>,
4861 transaction: ProjectTransaction,
4862 title: String,
4863 mut cx: AsyncWindowContext,
4864 ) -> Result<()> {
4865 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4866 cx.update(|cx| {
4867 entries.sort_unstable_by_key(|(buffer, _)| {
4868 buffer.read(cx).file().map(|f| f.path().clone())
4869 });
4870 })?;
4871
4872 // If the project transaction's edits are all contained within this editor, then
4873 // avoid opening a new editor to display them.
4874
4875 if let Some((buffer, transaction)) = entries.first() {
4876 if entries.len() == 1 {
4877 let excerpt = this.update(&mut cx, |editor, cx| {
4878 editor
4879 .buffer()
4880 .read(cx)
4881 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4882 })?;
4883 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4884 if excerpted_buffer == *buffer {
4885 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4886 let excerpt_range = excerpt_range.to_offset(buffer);
4887 buffer
4888 .edited_ranges_for_transaction::<usize>(transaction)
4889 .all(|range| {
4890 excerpt_range.start <= range.start
4891 && excerpt_range.end >= range.end
4892 })
4893 })?;
4894
4895 if all_edits_within_excerpt {
4896 return Ok(());
4897 }
4898 }
4899 }
4900 }
4901 } else {
4902 return Ok(());
4903 }
4904
4905 let mut ranges_to_highlight = Vec::new();
4906 let excerpt_buffer = cx.new_model(|cx| {
4907 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4908 for (buffer_handle, transaction) in &entries {
4909 let buffer = buffer_handle.read(cx);
4910 ranges_to_highlight.extend(
4911 multibuffer.push_excerpts_with_context_lines(
4912 buffer_handle.clone(),
4913 buffer
4914 .edited_ranges_for_transaction::<usize>(transaction)
4915 .collect(),
4916 DEFAULT_MULTIBUFFER_CONTEXT,
4917 cx,
4918 ),
4919 );
4920 }
4921 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4922 multibuffer
4923 })?;
4924
4925 workspace.update(&mut cx, |workspace, cx| {
4926 let project = workspace.project().clone();
4927 let editor =
4928 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4929 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4930 editor.update(cx, |editor, cx| {
4931 editor.highlight_background::<Self>(
4932 &ranges_to_highlight,
4933 |theme| theme.editor_highlighted_line_background,
4934 cx,
4935 );
4936 });
4937 })?;
4938
4939 Ok(())
4940 }
4941
4942 pub fn clear_code_action_providers(&mut self) {
4943 self.code_action_providers.clear();
4944 self.available_code_actions.take();
4945 }
4946
4947 pub fn push_code_action_provider(
4948 &mut self,
4949 provider: Arc<dyn CodeActionProvider>,
4950 cx: &mut ViewContext<Self>,
4951 ) {
4952 self.code_action_providers.push(provider);
4953 self.refresh_code_actions(cx);
4954 }
4955
4956 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4957 let buffer = self.buffer.read(cx);
4958 let newest_selection = self.selections.newest_anchor().clone();
4959 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4960 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4961 if start_buffer != end_buffer {
4962 return None;
4963 }
4964
4965 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4966 cx.background_executor()
4967 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4968 .await;
4969
4970 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4971 let providers = this.code_action_providers.clone();
4972 let tasks = this
4973 .code_action_providers
4974 .iter()
4975 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4976 .collect::<Vec<_>>();
4977 (providers, tasks)
4978 })?;
4979
4980 let mut actions = Vec::new();
4981 for (provider, provider_actions) in
4982 providers.into_iter().zip(future::join_all(tasks).await)
4983 {
4984 if let Some(provider_actions) = provider_actions.log_err() {
4985 actions.extend(provider_actions.into_iter().map(|action| {
4986 AvailableCodeAction {
4987 excerpt_id: newest_selection.start.excerpt_id,
4988 action,
4989 provider: provider.clone(),
4990 }
4991 }));
4992 }
4993 }
4994
4995 this.update(&mut cx, |this, cx| {
4996 this.available_code_actions = if actions.is_empty() {
4997 None
4998 } else {
4999 Some((
5000 Location {
5001 buffer: start_buffer,
5002 range: start..end,
5003 },
5004 actions.into(),
5005 ))
5006 };
5007 cx.notify();
5008 })
5009 }));
5010 None
5011 }
5012
5013 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
5014 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
5015 self.show_git_blame_inline = false;
5016
5017 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
5018 cx.background_executor().timer(delay).await;
5019
5020 this.update(&mut cx, |this, cx| {
5021 this.show_git_blame_inline = true;
5022 cx.notify();
5023 })
5024 .log_err();
5025 }));
5026 }
5027 }
5028
5029 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5030 if self.pending_rename.is_some() {
5031 return None;
5032 }
5033
5034 let provider = self.semantics_provider.clone()?;
5035 let buffer = self.buffer.read(cx);
5036 let newest_selection = self.selections.newest_anchor().clone();
5037 let cursor_position = newest_selection.head();
5038 let (cursor_buffer, cursor_buffer_position) =
5039 buffer.text_anchor_for_position(cursor_position, cx)?;
5040 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
5041 if cursor_buffer != tail_buffer {
5042 return None;
5043 }
5044
5045 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5046 cx.background_executor()
5047 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5048 .await;
5049
5050 let highlights = if let Some(highlights) = cx
5051 .update(|cx| {
5052 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5053 })
5054 .ok()
5055 .flatten()
5056 {
5057 highlights.await.log_err()
5058 } else {
5059 None
5060 };
5061
5062 if let Some(highlights) = highlights {
5063 this.update(&mut cx, |this, cx| {
5064 if this.pending_rename.is_some() {
5065 return;
5066 }
5067
5068 let buffer_id = cursor_position.buffer_id;
5069 let buffer = this.buffer.read(cx);
5070 if !buffer
5071 .text_anchor_for_position(cursor_position, cx)
5072 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5073 {
5074 return;
5075 }
5076
5077 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5078 let mut write_ranges = Vec::new();
5079 let mut read_ranges = Vec::new();
5080 for highlight in highlights {
5081 for (excerpt_id, excerpt_range) in
5082 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5083 {
5084 let start = highlight
5085 .range
5086 .start
5087 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5088 let end = highlight
5089 .range
5090 .end
5091 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5092 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5093 continue;
5094 }
5095
5096 let range = Anchor {
5097 buffer_id,
5098 excerpt_id,
5099 text_anchor: start,
5100 }..Anchor {
5101 buffer_id,
5102 excerpt_id,
5103 text_anchor: end,
5104 };
5105 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5106 write_ranges.push(range);
5107 } else {
5108 read_ranges.push(range);
5109 }
5110 }
5111 }
5112
5113 this.highlight_background::<DocumentHighlightRead>(
5114 &read_ranges,
5115 |theme| theme.editor_document_highlight_read_background,
5116 cx,
5117 );
5118 this.highlight_background::<DocumentHighlightWrite>(
5119 &write_ranges,
5120 |theme| theme.editor_document_highlight_write_background,
5121 cx,
5122 );
5123 cx.notify();
5124 })
5125 .log_err();
5126 }
5127 }));
5128 None
5129 }
5130
5131 pub fn refresh_inline_completion(
5132 &mut self,
5133 debounce: bool,
5134 user_requested: bool,
5135 cx: &mut ViewContext<Self>,
5136 ) -> Option<()> {
5137 let provider = self.inline_completion_provider()?;
5138 let cursor = self.selections.newest_anchor().head();
5139 let (buffer, cursor_buffer_position) =
5140 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5141
5142 if !user_requested
5143 && (!self.enable_inline_completions
5144 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5145 {
5146 self.discard_inline_completion(false, cx);
5147 return None;
5148 }
5149
5150 self.update_visible_inline_completion(cx);
5151 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5152 Some(())
5153 }
5154
5155 fn cycle_inline_completion(
5156 &mut self,
5157 direction: Direction,
5158 cx: &mut ViewContext<Self>,
5159 ) -> Option<()> {
5160 let provider = self.inline_completion_provider()?;
5161 let cursor = self.selections.newest_anchor().head();
5162 let (buffer, cursor_buffer_position) =
5163 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5164 if !self.enable_inline_completions
5165 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5166 {
5167 return None;
5168 }
5169
5170 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5171 self.update_visible_inline_completion(cx);
5172
5173 Some(())
5174 }
5175
5176 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5177 if !self.has_active_inline_completion(cx) {
5178 self.refresh_inline_completion(false, true, cx);
5179 return;
5180 }
5181
5182 self.update_visible_inline_completion(cx);
5183 }
5184
5185 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5186 self.show_cursor_names(cx);
5187 }
5188
5189 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5190 self.show_cursor_names = true;
5191 cx.notify();
5192 cx.spawn(|this, mut cx| async move {
5193 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5194 this.update(&mut cx, |this, cx| {
5195 this.show_cursor_names = false;
5196 cx.notify()
5197 })
5198 .ok()
5199 })
5200 .detach();
5201 }
5202
5203 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5204 if self.has_active_inline_completion(cx) {
5205 self.cycle_inline_completion(Direction::Next, cx);
5206 } else {
5207 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5208 if is_copilot_disabled {
5209 cx.propagate();
5210 }
5211 }
5212 }
5213
5214 pub fn previous_inline_completion(
5215 &mut self,
5216 _: &PreviousInlineCompletion,
5217 cx: &mut ViewContext<Self>,
5218 ) {
5219 if self.has_active_inline_completion(cx) {
5220 self.cycle_inline_completion(Direction::Prev, cx);
5221 } else {
5222 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5223 if is_copilot_disabled {
5224 cx.propagate();
5225 }
5226 }
5227 }
5228
5229 pub fn accept_inline_completion(
5230 &mut self,
5231 _: &AcceptInlineCompletion,
5232 cx: &mut ViewContext<Self>,
5233 ) {
5234 let Some(completion) = self.take_active_inline_completion(cx) else {
5235 return;
5236 };
5237 if let Some(provider) = self.inline_completion_provider() {
5238 provider.accept(cx);
5239 }
5240
5241 cx.emit(EditorEvent::InputHandled {
5242 utf16_range_to_replace: None,
5243 text: completion.text.to_string().into(),
5244 });
5245
5246 if let Some(range) = completion.delete_range {
5247 self.change_selections(None, cx, |s| s.select_ranges([range]))
5248 }
5249 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5250 self.refresh_inline_completion(true, true, cx);
5251 cx.notify();
5252 }
5253
5254 pub fn accept_partial_inline_completion(
5255 &mut self,
5256 _: &AcceptPartialInlineCompletion,
5257 cx: &mut ViewContext<Self>,
5258 ) {
5259 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5260 if let Some(completion) = self.take_active_inline_completion(cx) {
5261 let mut partial_completion = completion
5262 .text
5263 .chars()
5264 .by_ref()
5265 .take_while(|c| c.is_alphabetic())
5266 .collect::<String>();
5267 if partial_completion.is_empty() {
5268 partial_completion = completion
5269 .text
5270 .chars()
5271 .by_ref()
5272 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5273 .collect::<String>();
5274 }
5275
5276 cx.emit(EditorEvent::InputHandled {
5277 utf16_range_to_replace: None,
5278 text: partial_completion.clone().into(),
5279 });
5280
5281 if let Some(range) = completion.delete_range {
5282 self.change_selections(None, cx, |s| s.select_ranges([range]))
5283 }
5284 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5285
5286 self.refresh_inline_completion(true, true, cx);
5287 cx.notify();
5288 }
5289 }
5290 }
5291
5292 fn discard_inline_completion(
5293 &mut self,
5294 should_report_inline_completion_event: bool,
5295 cx: &mut ViewContext<Self>,
5296 ) -> bool {
5297 if let Some(provider) = self.inline_completion_provider() {
5298 provider.discard(should_report_inline_completion_event, cx);
5299 }
5300
5301 self.take_active_inline_completion(cx).is_some()
5302 }
5303
5304 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5305 if let Some(completion) = self.active_inline_completion.as_ref() {
5306 let buffer = self.buffer.read(cx).read(cx);
5307 completion.position.is_valid(&buffer)
5308 } else {
5309 false
5310 }
5311 }
5312
5313 fn take_active_inline_completion(
5314 &mut self,
5315 cx: &mut ViewContext<Self>,
5316 ) -> Option<CompletionState> {
5317 let completion = self.active_inline_completion.take()?;
5318 let render_inlay_ids = completion.render_inlay_ids.clone();
5319 self.display_map.update(cx, |map, cx| {
5320 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5321 });
5322 let buffer = self.buffer.read(cx).read(cx);
5323
5324 if completion.position.is_valid(&buffer) {
5325 Some(completion)
5326 } else {
5327 None
5328 }
5329 }
5330
5331 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5332 let selection = self.selections.newest_anchor();
5333 let cursor = selection.head();
5334
5335 let excerpt_id = cursor.excerpt_id;
5336
5337 if self.context_menu.read().is_none()
5338 && self.completion_tasks.is_empty()
5339 && selection.start == selection.end
5340 {
5341 if let Some(provider) = self.inline_completion_provider() {
5342 if let Some((buffer, cursor_buffer_position)) =
5343 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5344 {
5345 if let Some(proposal) =
5346 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5347 {
5348 let mut to_remove = Vec::new();
5349 if let Some(completion) = self.active_inline_completion.take() {
5350 to_remove.extend(completion.render_inlay_ids.iter());
5351 }
5352
5353 let to_add = proposal
5354 .inlays
5355 .iter()
5356 .filter_map(|inlay| {
5357 let snapshot = self.buffer.read(cx).snapshot(cx);
5358 let id = post_inc(&mut self.next_inlay_id);
5359 match inlay {
5360 InlayProposal::Hint(position, hint) => {
5361 let position =
5362 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5363 Some(Inlay::hint(id, position, hint))
5364 }
5365 InlayProposal::Suggestion(position, text) => {
5366 let position =
5367 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5368 Some(Inlay::suggestion(id, position, text.clone()))
5369 }
5370 }
5371 })
5372 .collect_vec();
5373
5374 self.active_inline_completion = Some(CompletionState {
5375 position: cursor,
5376 text: proposal.text,
5377 delete_range: proposal.delete_range.and_then(|range| {
5378 let snapshot = self.buffer.read(cx).snapshot(cx);
5379 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5380 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5381 Some(start?..end?)
5382 }),
5383 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5384 });
5385
5386 self.display_map
5387 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5388
5389 cx.notify();
5390 return;
5391 }
5392 }
5393 }
5394 }
5395
5396 self.discard_inline_completion(false, cx);
5397 }
5398
5399 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5400 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5401 }
5402
5403 fn render_code_actions_indicator(
5404 &self,
5405 _style: &EditorStyle,
5406 row: DisplayRow,
5407 is_active: bool,
5408 cx: &mut ViewContext<Self>,
5409 ) -> Option<IconButton> {
5410 if self.available_code_actions.is_some() {
5411 Some(
5412 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5413 .shape(ui::IconButtonShape::Square)
5414 .icon_size(IconSize::XSmall)
5415 .icon_color(Color::Muted)
5416 .selected(is_active)
5417 .tooltip({
5418 let focus_handle = self.focus_handle.clone();
5419 move |cx| {
5420 Tooltip::for_action_in(
5421 "Toggle Code Actions",
5422 &ToggleCodeActions {
5423 deployed_from_indicator: None,
5424 },
5425 &focus_handle,
5426 cx,
5427 )
5428 }
5429 })
5430 .on_click(cx.listener(move |editor, _e, cx| {
5431 editor.focus(cx);
5432 editor.toggle_code_actions(
5433 &ToggleCodeActions {
5434 deployed_from_indicator: Some(row),
5435 },
5436 cx,
5437 );
5438 })),
5439 )
5440 } else {
5441 None
5442 }
5443 }
5444
5445 fn clear_tasks(&mut self) {
5446 self.tasks.clear()
5447 }
5448
5449 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5450 if self.tasks.insert(key, value).is_some() {
5451 // This case should hopefully be rare, but just in case...
5452 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5453 }
5454 }
5455
5456 fn render_run_indicator(
5457 &self,
5458 _style: &EditorStyle,
5459 is_active: bool,
5460 row: DisplayRow,
5461 cx: &mut ViewContext<Self>,
5462 ) -> IconButton {
5463 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5464 .shape(ui::IconButtonShape::Square)
5465 .icon_size(IconSize::XSmall)
5466 .icon_color(Color::Muted)
5467 .selected(is_active)
5468 .on_click(cx.listener(move |editor, _e, cx| {
5469 editor.focus(cx);
5470 editor.toggle_code_actions(
5471 &ToggleCodeActions {
5472 deployed_from_indicator: Some(row),
5473 },
5474 cx,
5475 );
5476 }))
5477 }
5478
5479 pub fn context_menu_visible(&self) -> bool {
5480 self.context_menu
5481 .read()
5482 .as_ref()
5483 .map_or(false, |menu| menu.visible())
5484 }
5485
5486 fn render_context_menu(
5487 &self,
5488 cursor_position: DisplayPoint,
5489 style: &EditorStyle,
5490 max_height: Pixels,
5491 cx: &mut ViewContext<Editor>,
5492 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5493 self.context_menu.read().as_ref().map(|menu| {
5494 menu.render(
5495 cursor_position,
5496 style,
5497 max_height,
5498 self.workspace.as_ref().map(|(w, _)| w.clone()),
5499 cx,
5500 )
5501 })
5502 }
5503
5504 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5505 cx.notify();
5506 self.completion_tasks.clear();
5507 let context_menu = self.context_menu.write().take();
5508 if context_menu.is_some() {
5509 self.update_visible_inline_completion(cx);
5510 }
5511 context_menu
5512 }
5513
5514 pub fn insert_snippet(
5515 &mut self,
5516 insertion_ranges: &[Range<usize>],
5517 snippet: Snippet,
5518 cx: &mut ViewContext<Self>,
5519 ) -> Result<()> {
5520 struct Tabstop<T> {
5521 is_end_tabstop: bool,
5522 ranges: Vec<Range<T>>,
5523 }
5524
5525 let tabstops = self.buffer.update(cx, |buffer, cx| {
5526 let snippet_text: Arc<str> = snippet.text.clone().into();
5527 buffer.edit(
5528 insertion_ranges
5529 .iter()
5530 .cloned()
5531 .map(|range| (range, snippet_text.clone())),
5532 Some(AutoindentMode::EachLine),
5533 cx,
5534 );
5535
5536 let snapshot = &*buffer.read(cx);
5537 let snippet = &snippet;
5538 snippet
5539 .tabstops
5540 .iter()
5541 .map(|tabstop| {
5542 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5543 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5544 });
5545 let mut tabstop_ranges = tabstop
5546 .iter()
5547 .flat_map(|tabstop_range| {
5548 let mut delta = 0_isize;
5549 insertion_ranges.iter().map(move |insertion_range| {
5550 let insertion_start = insertion_range.start as isize + delta;
5551 delta +=
5552 snippet.text.len() as isize - insertion_range.len() as isize;
5553
5554 let start = ((insertion_start + tabstop_range.start) as usize)
5555 .min(snapshot.len());
5556 let end = ((insertion_start + tabstop_range.end) as usize)
5557 .min(snapshot.len());
5558 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5559 })
5560 })
5561 .collect::<Vec<_>>();
5562 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5563
5564 Tabstop {
5565 is_end_tabstop,
5566 ranges: tabstop_ranges,
5567 }
5568 })
5569 .collect::<Vec<_>>()
5570 });
5571 if let Some(tabstop) = tabstops.first() {
5572 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5573 s.select_ranges(tabstop.ranges.iter().cloned());
5574 });
5575
5576 // If we're already at the last tabstop and it's at the end of the snippet,
5577 // we're done, we don't need to keep the state around.
5578 if !tabstop.is_end_tabstop {
5579 let ranges = tabstops
5580 .into_iter()
5581 .map(|tabstop| tabstop.ranges)
5582 .collect::<Vec<_>>();
5583 self.snippet_stack.push(SnippetState {
5584 active_index: 0,
5585 ranges,
5586 });
5587 }
5588
5589 // Check whether the just-entered snippet ends with an auto-closable bracket.
5590 if self.autoclose_regions.is_empty() {
5591 let snapshot = self.buffer.read(cx).snapshot(cx);
5592 for selection in &mut self.selections.all::<Point>(cx) {
5593 let selection_head = selection.head();
5594 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5595 continue;
5596 };
5597
5598 let mut bracket_pair = None;
5599 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5600 let prev_chars = snapshot
5601 .reversed_chars_at(selection_head)
5602 .collect::<String>();
5603 for (pair, enabled) in scope.brackets() {
5604 if enabled
5605 && pair.close
5606 && prev_chars.starts_with(pair.start.as_str())
5607 && next_chars.starts_with(pair.end.as_str())
5608 {
5609 bracket_pair = Some(pair.clone());
5610 break;
5611 }
5612 }
5613 if let Some(pair) = bracket_pair {
5614 let start = snapshot.anchor_after(selection_head);
5615 let end = snapshot.anchor_after(selection_head);
5616 self.autoclose_regions.push(AutocloseRegion {
5617 selection_id: selection.id,
5618 range: start..end,
5619 pair,
5620 });
5621 }
5622 }
5623 }
5624 }
5625 Ok(())
5626 }
5627
5628 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5629 self.move_to_snippet_tabstop(Bias::Right, cx)
5630 }
5631
5632 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5633 self.move_to_snippet_tabstop(Bias::Left, cx)
5634 }
5635
5636 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5637 if let Some(mut snippet) = self.snippet_stack.pop() {
5638 match bias {
5639 Bias::Left => {
5640 if snippet.active_index > 0 {
5641 snippet.active_index -= 1;
5642 } else {
5643 self.snippet_stack.push(snippet);
5644 return false;
5645 }
5646 }
5647 Bias::Right => {
5648 if snippet.active_index + 1 < snippet.ranges.len() {
5649 snippet.active_index += 1;
5650 } else {
5651 self.snippet_stack.push(snippet);
5652 return false;
5653 }
5654 }
5655 }
5656 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5657 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5658 s.select_anchor_ranges(current_ranges.iter().cloned())
5659 });
5660 // If snippet state is not at the last tabstop, push it back on the stack
5661 if snippet.active_index + 1 < snippet.ranges.len() {
5662 self.snippet_stack.push(snippet);
5663 }
5664 return true;
5665 }
5666 }
5667
5668 false
5669 }
5670
5671 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5672 self.transact(cx, |this, cx| {
5673 this.select_all(&SelectAll, cx);
5674 this.insert("", cx);
5675 });
5676 }
5677
5678 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5679 self.transact(cx, |this, cx| {
5680 this.select_autoclose_pair(cx);
5681 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5682 if !this.linked_edit_ranges.is_empty() {
5683 let selections = this.selections.all::<MultiBufferPoint>(cx);
5684 let snapshot = this.buffer.read(cx).snapshot(cx);
5685
5686 for selection in selections.iter() {
5687 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5688 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5689 if selection_start.buffer_id != selection_end.buffer_id {
5690 continue;
5691 }
5692 if let Some(ranges) =
5693 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5694 {
5695 for (buffer, entries) in ranges {
5696 linked_ranges.entry(buffer).or_default().extend(entries);
5697 }
5698 }
5699 }
5700 }
5701
5702 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5703 if !this.selections.line_mode {
5704 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5705 for selection in &mut selections {
5706 if selection.is_empty() {
5707 let old_head = selection.head();
5708 let mut new_head =
5709 movement::left(&display_map, old_head.to_display_point(&display_map))
5710 .to_point(&display_map);
5711 if let Some((buffer, line_buffer_range)) = display_map
5712 .buffer_snapshot
5713 .buffer_line_for_row(MultiBufferRow(old_head.row))
5714 {
5715 let indent_size =
5716 buffer.indent_size_for_line(line_buffer_range.start.row);
5717 let indent_len = match indent_size.kind {
5718 IndentKind::Space => {
5719 buffer.settings_at(line_buffer_range.start, cx).tab_size
5720 }
5721 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5722 };
5723 if old_head.column <= indent_size.len && old_head.column > 0 {
5724 let indent_len = indent_len.get();
5725 new_head = cmp::min(
5726 new_head,
5727 MultiBufferPoint::new(
5728 old_head.row,
5729 ((old_head.column - 1) / indent_len) * indent_len,
5730 ),
5731 );
5732 }
5733 }
5734
5735 selection.set_head(new_head, SelectionGoal::None);
5736 }
5737 }
5738 }
5739
5740 this.signature_help_state.set_backspace_pressed(true);
5741 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5742 this.insert("", cx);
5743 let empty_str: Arc<str> = Arc::from("");
5744 for (buffer, edits) in linked_ranges {
5745 let snapshot = buffer.read(cx).snapshot();
5746 use text::ToPoint as TP;
5747
5748 let edits = edits
5749 .into_iter()
5750 .map(|range| {
5751 let end_point = TP::to_point(&range.end, &snapshot);
5752 let mut start_point = TP::to_point(&range.start, &snapshot);
5753
5754 if end_point == start_point {
5755 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5756 .saturating_sub(1);
5757 start_point = TP::to_point(&offset, &snapshot);
5758 };
5759
5760 (start_point..end_point, empty_str.clone())
5761 })
5762 .sorted_by_key(|(range, _)| range.start)
5763 .collect::<Vec<_>>();
5764 buffer.update(cx, |this, cx| {
5765 this.edit(edits, None, cx);
5766 })
5767 }
5768 this.refresh_inline_completion(true, false, cx);
5769 linked_editing_ranges::refresh_linked_ranges(this, cx);
5770 });
5771 }
5772
5773 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5774 self.transact(cx, |this, cx| {
5775 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5776 let line_mode = s.line_mode;
5777 s.move_with(|map, selection| {
5778 if selection.is_empty() && !line_mode {
5779 let cursor = movement::right(map, selection.head());
5780 selection.end = cursor;
5781 selection.reversed = true;
5782 selection.goal = SelectionGoal::None;
5783 }
5784 })
5785 });
5786 this.insert("", cx);
5787 this.refresh_inline_completion(true, false, cx);
5788 });
5789 }
5790
5791 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5792 if self.move_to_prev_snippet_tabstop(cx) {
5793 return;
5794 }
5795
5796 self.outdent(&Outdent, cx);
5797 }
5798
5799 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5800 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5801 return;
5802 }
5803
5804 let mut selections = self.selections.all_adjusted(cx);
5805 let buffer = self.buffer.read(cx);
5806 let snapshot = buffer.snapshot(cx);
5807 let rows_iter = selections.iter().map(|s| s.head().row);
5808 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5809
5810 let mut edits = Vec::new();
5811 let mut prev_edited_row = 0;
5812 let mut row_delta = 0;
5813 for selection in &mut selections {
5814 if selection.start.row != prev_edited_row {
5815 row_delta = 0;
5816 }
5817 prev_edited_row = selection.end.row;
5818
5819 // If the selection is non-empty, then increase the indentation of the selected lines.
5820 if !selection.is_empty() {
5821 row_delta =
5822 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5823 continue;
5824 }
5825
5826 // If the selection is empty and the cursor is in the leading whitespace before the
5827 // suggested indentation, then auto-indent the line.
5828 let cursor = selection.head();
5829 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5830 if let Some(suggested_indent) =
5831 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5832 {
5833 if cursor.column < suggested_indent.len
5834 && cursor.column <= current_indent.len
5835 && current_indent.len <= suggested_indent.len
5836 {
5837 selection.start = Point::new(cursor.row, suggested_indent.len);
5838 selection.end = selection.start;
5839 if row_delta == 0 {
5840 edits.extend(Buffer::edit_for_indent_size_adjustment(
5841 cursor.row,
5842 current_indent,
5843 suggested_indent,
5844 ));
5845 row_delta = suggested_indent.len - current_indent.len;
5846 }
5847 continue;
5848 }
5849 }
5850
5851 // Otherwise, insert a hard or soft tab.
5852 let settings = buffer.settings_at(cursor, cx);
5853 let tab_size = if settings.hard_tabs {
5854 IndentSize::tab()
5855 } else {
5856 let tab_size = settings.tab_size.get();
5857 let char_column = snapshot
5858 .text_for_range(Point::new(cursor.row, 0)..cursor)
5859 .flat_map(str::chars)
5860 .count()
5861 + row_delta as usize;
5862 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5863 IndentSize::spaces(chars_to_next_tab_stop)
5864 };
5865 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5866 selection.end = selection.start;
5867 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5868 row_delta += tab_size.len;
5869 }
5870
5871 self.transact(cx, |this, cx| {
5872 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5873 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5874 this.refresh_inline_completion(true, false, cx);
5875 });
5876 }
5877
5878 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5879 if self.read_only(cx) {
5880 return;
5881 }
5882 let mut selections = self.selections.all::<Point>(cx);
5883 let mut prev_edited_row = 0;
5884 let mut row_delta = 0;
5885 let mut edits = Vec::new();
5886 let buffer = self.buffer.read(cx);
5887 let snapshot = buffer.snapshot(cx);
5888 for selection in &mut selections {
5889 if selection.start.row != prev_edited_row {
5890 row_delta = 0;
5891 }
5892 prev_edited_row = selection.end.row;
5893
5894 row_delta =
5895 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5896 }
5897
5898 self.transact(cx, |this, cx| {
5899 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5900 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5901 });
5902 }
5903
5904 fn indent_selection(
5905 buffer: &MultiBuffer,
5906 snapshot: &MultiBufferSnapshot,
5907 selection: &mut Selection<Point>,
5908 edits: &mut Vec<(Range<Point>, String)>,
5909 delta_for_start_row: u32,
5910 cx: &AppContext,
5911 ) -> u32 {
5912 let settings = buffer.settings_at(selection.start, cx);
5913 let tab_size = settings.tab_size.get();
5914 let indent_kind = if settings.hard_tabs {
5915 IndentKind::Tab
5916 } else {
5917 IndentKind::Space
5918 };
5919 let mut start_row = selection.start.row;
5920 let mut end_row = selection.end.row + 1;
5921
5922 // If a selection ends at the beginning of a line, don't indent
5923 // that last line.
5924 if selection.end.column == 0 && selection.end.row > selection.start.row {
5925 end_row -= 1;
5926 }
5927
5928 // Avoid re-indenting a row that has already been indented by a
5929 // previous selection, but still update this selection's column
5930 // to reflect that indentation.
5931 if delta_for_start_row > 0 {
5932 start_row += 1;
5933 selection.start.column += delta_for_start_row;
5934 if selection.end.row == selection.start.row {
5935 selection.end.column += delta_for_start_row;
5936 }
5937 }
5938
5939 let mut delta_for_end_row = 0;
5940 let has_multiple_rows = start_row + 1 != end_row;
5941 for row in start_row..end_row {
5942 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5943 let indent_delta = match (current_indent.kind, indent_kind) {
5944 (IndentKind::Space, IndentKind::Space) => {
5945 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5946 IndentSize::spaces(columns_to_next_tab_stop)
5947 }
5948 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5949 (_, IndentKind::Tab) => IndentSize::tab(),
5950 };
5951
5952 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5953 0
5954 } else {
5955 selection.start.column
5956 };
5957 let row_start = Point::new(row, start);
5958 edits.push((
5959 row_start..row_start,
5960 indent_delta.chars().collect::<String>(),
5961 ));
5962
5963 // Update this selection's endpoints to reflect the indentation.
5964 if row == selection.start.row {
5965 selection.start.column += indent_delta.len;
5966 }
5967 if row == selection.end.row {
5968 selection.end.column += indent_delta.len;
5969 delta_for_end_row = indent_delta.len;
5970 }
5971 }
5972
5973 if selection.start.row == selection.end.row {
5974 delta_for_start_row + delta_for_end_row
5975 } else {
5976 delta_for_end_row
5977 }
5978 }
5979
5980 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5981 if self.read_only(cx) {
5982 return;
5983 }
5984 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5985 let selections = self.selections.all::<Point>(cx);
5986 let mut deletion_ranges = Vec::new();
5987 let mut last_outdent = None;
5988 {
5989 let buffer = self.buffer.read(cx);
5990 let snapshot = buffer.snapshot(cx);
5991 for selection in &selections {
5992 let settings = buffer.settings_at(selection.start, cx);
5993 let tab_size = settings.tab_size.get();
5994 let mut rows = selection.spanned_rows(false, &display_map);
5995
5996 // Avoid re-outdenting a row that has already been outdented by a
5997 // previous selection.
5998 if let Some(last_row) = last_outdent {
5999 if last_row == rows.start {
6000 rows.start = rows.start.next_row();
6001 }
6002 }
6003 let has_multiple_rows = rows.len() > 1;
6004 for row in rows.iter_rows() {
6005 let indent_size = snapshot.indent_size_for_line(row);
6006 if indent_size.len > 0 {
6007 let deletion_len = match indent_size.kind {
6008 IndentKind::Space => {
6009 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6010 if columns_to_prev_tab_stop == 0 {
6011 tab_size
6012 } else {
6013 columns_to_prev_tab_stop
6014 }
6015 }
6016 IndentKind::Tab => 1,
6017 };
6018 let start = if has_multiple_rows
6019 || deletion_len > selection.start.column
6020 || indent_size.len < selection.start.column
6021 {
6022 0
6023 } else {
6024 selection.start.column - deletion_len
6025 };
6026 deletion_ranges.push(
6027 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6028 );
6029 last_outdent = Some(row);
6030 }
6031 }
6032 }
6033 }
6034
6035 self.transact(cx, |this, cx| {
6036 this.buffer.update(cx, |buffer, cx| {
6037 let empty_str: Arc<str> = Arc::default();
6038 buffer.edit(
6039 deletion_ranges
6040 .into_iter()
6041 .map(|range| (range, empty_str.clone())),
6042 None,
6043 cx,
6044 );
6045 });
6046 let selections = this.selections.all::<usize>(cx);
6047 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6048 });
6049 }
6050
6051 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
6052 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6053 let selections = self.selections.all::<Point>(cx);
6054
6055 let mut new_cursors = Vec::new();
6056 let mut edit_ranges = Vec::new();
6057 let mut selections = selections.iter().peekable();
6058 while let Some(selection) = selections.next() {
6059 let mut rows = selection.spanned_rows(false, &display_map);
6060 let goal_display_column = selection.head().to_display_point(&display_map).column();
6061
6062 // Accumulate contiguous regions of rows that we want to delete.
6063 while let Some(next_selection) = selections.peek() {
6064 let next_rows = next_selection.spanned_rows(false, &display_map);
6065 if next_rows.start <= rows.end {
6066 rows.end = next_rows.end;
6067 selections.next().unwrap();
6068 } else {
6069 break;
6070 }
6071 }
6072
6073 let buffer = &display_map.buffer_snapshot;
6074 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6075 let edit_end;
6076 let cursor_buffer_row;
6077 if buffer.max_point().row >= rows.end.0 {
6078 // If there's a line after the range, delete the \n from the end of the row range
6079 // and position the cursor on the next line.
6080 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6081 cursor_buffer_row = rows.end;
6082 } else {
6083 // If there isn't a line after the range, delete the \n from the line before the
6084 // start of the row range and position the cursor there.
6085 edit_start = edit_start.saturating_sub(1);
6086 edit_end = buffer.len();
6087 cursor_buffer_row = rows.start.previous_row();
6088 }
6089
6090 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6091 *cursor.column_mut() =
6092 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6093
6094 new_cursors.push((
6095 selection.id,
6096 buffer.anchor_after(cursor.to_point(&display_map)),
6097 ));
6098 edit_ranges.push(edit_start..edit_end);
6099 }
6100
6101 self.transact(cx, |this, cx| {
6102 let buffer = this.buffer.update(cx, |buffer, cx| {
6103 let empty_str: Arc<str> = Arc::default();
6104 buffer.edit(
6105 edit_ranges
6106 .into_iter()
6107 .map(|range| (range, empty_str.clone())),
6108 None,
6109 cx,
6110 );
6111 buffer.snapshot(cx)
6112 });
6113 let new_selections = new_cursors
6114 .into_iter()
6115 .map(|(id, cursor)| {
6116 let cursor = cursor.to_point(&buffer);
6117 Selection {
6118 id,
6119 start: cursor,
6120 end: cursor,
6121 reversed: false,
6122 goal: SelectionGoal::None,
6123 }
6124 })
6125 .collect();
6126
6127 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6128 s.select(new_selections);
6129 });
6130 });
6131 }
6132
6133 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6134 if self.read_only(cx) {
6135 return;
6136 }
6137 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6138 for selection in self.selections.all::<Point>(cx) {
6139 let start = MultiBufferRow(selection.start.row);
6140 let end = if selection.start.row == selection.end.row {
6141 MultiBufferRow(selection.start.row + 1)
6142 } else {
6143 MultiBufferRow(selection.end.row)
6144 };
6145
6146 if let Some(last_row_range) = row_ranges.last_mut() {
6147 if start <= last_row_range.end {
6148 last_row_range.end = end;
6149 continue;
6150 }
6151 }
6152 row_ranges.push(start..end);
6153 }
6154
6155 let snapshot = self.buffer.read(cx).snapshot(cx);
6156 let mut cursor_positions = Vec::new();
6157 for row_range in &row_ranges {
6158 let anchor = snapshot.anchor_before(Point::new(
6159 row_range.end.previous_row().0,
6160 snapshot.line_len(row_range.end.previous_row()),
6161 ));
6162 cursor_positions.push(anchor..anchor);
6163 }
6164
6165 self.transact(cx, |this, cx| {
6166 for row_range in row_ranges.into_iter().rev() {
6167 for row in row_range.iter_rows().rev() {
6168 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6169 let next_line_row = row.next_row();
6170 let indent = snapshot.indent_size_for_line(next_line_row);
6171 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6172
6173 let replace = if snapshot.line_len(next_line_row) > indent.len {
6174 " "
6175 } else {
6176 ""
6177 };
6178
6179 this.buffer.update(cx, |buffer, cx| {
6180 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6181 });
6182 }
6183 }
6184
6185 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6186 s.select_anchor_ranges(cursor_positions)
6187 });
6188 });
6189 }
6190
6191 pub fn sort_lines_case_sensitive(
6192 &mut self,
6193 _: &SortLinesCaseSensitive,
6194 cx: &mut ViewContext<Self>,
6195 ) {
6196 self.manipulate_lines(cx, |lines| lines.sort())
6197 }
6198
6199 pub fn sort_lines_case_insensitive(
6200 &mut self,
6201 _: &SortLinesCaseInsensitive,
6202 cx: &mut ViewContext<Self>,
6203 ) {
6204 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6205 }
6206
6207 pub fn unique_lines_case_insensitive(
6208 &mut self,
6209 _: &UniqueLinesCaseInsensitive,
6210 cx: &mut ViewContext<Self>,
6211 ) {
6212 self.manipulate_lines(cx, |lines| {
6213 let mut seen = HashSet::default();
6214 lines.retain(|line| seen.insert(line.to_lowercase()));
6215 })
6216 }
6217
6218 pub fn unique_lines_case_sensitive(
6219 &mut self,
6220 _: &UniqueLinesCaseSensitive,
6221 cx: &mut ViewContext<Self>,
6222 ) {
6223 self.manipulate_lines(cx, |lines| {
6224 let mut seen = HashSet::default();
6225 lines.retain(|line| seen.insert(*line));
6226 })
6227 }
6228
6229 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6230 let mut revert_changes = HashMap::default();
6231 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6232 for hunk in hunks_for_rows(
6233 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6234 &multi_buffer_snapshot,
6235 ) {
6236 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6237 }
6238 if !revert_changes.is_empty() {
6239 self.transact(cx, |editor, cx| {
6240 editor.revert(revert_changes, cx);
6241 });
6242 }
6243 }
6244
6245 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6246 let Some(project) = self.project.clone() else {
6247 return;
6248 };
6249 self.reload(project, cx).detach_and_notify_err(cx);
6250 }
6251
6252 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6253 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6254 if !revert_changes.is_empty() {
6255 self.transact(cx, |editor, cx| {
6256 editor.revert(revert_changes, cx);
6257 });
6258 }
6259 }
6260
6261 fn apply_selected_diff_hunks(&mut self, _: &ApplyDiffHunk, cx: &mut ViewContext<Self>) {
6262 let snapshot = self.buffer.read(cx).snapshot(cx);
6263 let hunks = hunks_for_selections(&snapshot, &self.selections.disjoint_anchors());
6264 let mut ranges_by_buffer = HashMap::default();
6265 self.transact(cx, |editor, cx| {
6266 for hunk in hunks {
6267 if let Some(buffer) = editor.buffer.read(cx).buffer(hunk.buffer_id) {
6268 ranges_by_buffer
6269 .entry(buffer.clone())
6270 .or_insert_with(Vec::new)
6271 .push(hunk.buffer_range.to_offset(buffer.read(cx)));
6272 }
6273 }
6274
6275 for (buffer, ranges) in ranges_by_buffer {
6276 buffer.update(cx, |buffer, cx| {
6277 buffer.merge_into_base(ranges, cx);
6278 });
6279 }
6280 });
6281 }
6282
6283 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6284 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6285 let project_path = buffer.read(cx).project_path(cx)?;
6286 let project = self.project.as_ref()?.read(cx);
6287 let entry = project.entry_for_path(&project_path, cx)?;
6288 let abs_path = project.absolute_path(&project_path, cx)?;
6289 let parent = if entry.is_symlink {
6290 abs_path.canonicalize().ok()?
6291 } else {
6292 abs_path
6293 }
6294 .parent()?
6295 .to_path_buf();
6296 Some(parent)
6297 }) {
6298 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6299 }
6300 }
6301
6302 fn gather_revert_changes(
6303 &mut self,
6304 selections: &[Selection<Anchor>],
6305 cx: &mut ViewContext<'_, Editor>,
6306 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6307 let mut revert_changes = HashMap::default();
6308 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6309 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6310 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6311 }
6312 revert_changes
6313 }
6314
6315 pub fn prepare_revert_change(
6316 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6317 multi_buffer: &Model<MultiBuffer>,
6318 hunk: &MultiBufferDiffHunk,
6319 cx: &AppContext,
6320 ) -> Option<()> {
6321 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6322 let buffer = buffer.read(cx);
6323 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6324 let buffer_snapshot = buffer.snapshot();
6325 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6326 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6327 probe
6328 .0
6329 .start
6330 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6331 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6332 }) {
6333 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6334 Some(())
6335 } else {
6336 None
6337 }
6338 }
6339
6340 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6341 self.manipulate_lines(cx, |lines| lines.reverse())
6342 }
6343
6344 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6345 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6346 }
6347
6348 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6349 where
6350 Fn: FnMut(&mut Vec<&str>),
6351 {
6352 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6353 let buffer = self.buffer.read(cx).snapshot(cx);
6354
6355 let mut edits = Vec::new();
6356
6357 let selections = self.selections.all::<Point>(cx);
6358 let mut selections = selections.iter().peekable();
6359 let mut contiguous_row_selections = Vec::new();
6360 let mut new_selections = Vec::new();
6361 let mut added_lines = 0;
6362 let mut removed_lines = 0;
6363
6364 while let Some(selection) = selections.next() {
6365 let (start_row, end_row) = consume_contiguous_rows(
6366 &mut contiguous_row_selections,
6367 selection,
6368 &display_map,
6369 &mut selections,
6370 );
6371
6372 let start_point = Point::new(start_row.0, 0);
6373 let end_point = Point::new(
6374 end_row.previous_row().0,
6375 buffer.line_len(end_row.previous_row()),
6376 );
6377 let text = buffer
6378 .text_for_range(start_point..end_point)
6379 .collect::<String>();
6380
6381 let mut lines = text.split('\n').collect_vec();
6382
6383 let lines_before = lines.len();
6384 callback(&mut lines);
6385 let lines_after = lines.len();
6386
6387 edits.push((start_point..end_point, lines.join("\n")));
6388
6389 // Selections must change based on added and removed line count
6390 let start_row =
6391 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6392 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6393 new_selections.push(Selection {
6394 id: selection.id,
6395 start: start_row,
6396 end: end_row,
6397 goal: SelectionGoal::None,
6398 reversed: selection.reversed,
6399 });
6400
6401 if lines_after > lines_before {
6402 added_lines += lines_after - lines_before;
6403 } else if lines_before > lines_after {
6404 removed_lines += lines_before - lines_after;
6405 }
6406 }
6407
6408 self.transact(cx, |this, cx| {
6409 let buffer = this.buffer.update(cx, |buffer, cx| {
6410 buffer.edit(edits, None, cx);
6411 buffer.snapshot(cx)
6412 });
6413
6414 // Recalculate offsets on newly edited buffer
6415 let new_selections = new_selections
6416 .iter()
6417 .map(|s| {
6418 let start_point = Point::new(s.start.0, 0);
6419 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6420 Selection {
6421 id: s.id,
6422 start: buffer.point_to_offset(start_point),
6423 end: buffer.point_to_offset(end_point),
6424 goal: s.goal,
6425 reversed: s.reversed,
6426 }
6427 })
6428 .collect();
6429
6430 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6431 s.select(new_selections);
6432 });
6433
6434 this.request_autoscroll(Autoscroll::fit(), cx);
6435 });
6436 }
6437
6438 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6439 self.manipulate_text(cx, |text| text.to_uppercase())
6440 }
6441
6442 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6443 self.manipulate_text(cx, |text| text.to_lowercase())
6444 }
6445
6446 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6447 self.manipulate_text(cx, |text| {
6448 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6449 // https://github.com/rutrum/convert-case/issues/16
6450 text.split('\n')
6451 .map(|line| line.to_case(Case::Title))
6452 .join("\n")
6453 })
6454 }
6455
6456 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6457 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6458 }
6459
6460 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6461 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6462 }
6463
6464 pub fn convert_to_upper_camel_case(
6465 &mut self,
6466 _: &ConvertToUpperCamelCase,
6467 cx: &mut ViewContext<Self>,
6468 ) {
6469 self.manipulate_text(cx, |text| {
6470 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6471 // https://github.com/rutrum/convert-case/issues/16
6472 text.split('\n')
6473 .map(|line| line.to_case(Case::UpperCamel))
6474 .join("\n")
6475 })
6476 }
6477
6478 pub fn convert_to_lower_camel_case(
6479 &mut self,
6480 _: &ConvertToLowerCamelCase,
6481 cx: &mut ViewContext<Self>,
6482 ) {
6483 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6484 }
6485
6486 pub fn convert_to_opposite_case(
6487 &mut self,
6488 _: &ConvertToOppositeCase,
6489 cx: &mut ViewContext<Self>,
6490 ) {
6491 self.manipulate_text(cx, |text| {
6492 text.chars()
6493 .fold(String::with_capacity(text.len()), |mut t, c| {
6494 if c.is_uppercase() {
6495 t.extend(c.to_lowercase());
6496 } else {
6497 t.extend(c.to_uppercase());
6498 }
6499 t
6500 })
6501 })
6502 }
6503
6504 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6505 where
6506 Fn: FnMut(&str) -> String,
6507 {
6508 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6509 let buffer = self.buffer.read(cx).snapshot(cx);
6510
6511 let mut new_selections = Vec::new();
6512 let mut edits = Vec::new();
6513 let mut selection_adjustment = 0i32;
6514
6515 for selection in self.selections.all::<usize>(cx) {
6516 let selection_is_empty = selection.is_empty();
6517
6518 let (start, end) = if selection_is_empty {
6519 let word_range = movement::surrounding_word(
6520 &display_map,
6521 selection.start.to_display_point(&display_map),
6522 );
6523 let start = word_range.start.to_offset(&display_map, Bias::Left);
6524 let end = word_range.end.to_offset(&display_map, Bias::Left);
6525 (start, end)
6526 } else {
6527 (selection.start, selection.end)
6528 };
6529
6530 let text = buffer.text_for_range(start..end).collect::<String>();
6531 let old_length = text.len() as i32;
6532 let text = callback(&text);
6533
6534 new_selections.push(Selection {
6535 start: (start as i32 - selection_adjustment) as usize,
6536 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6537 goal: SelectionGoal::None,
6538 ..selection
6539 });
6540
6541 selection_adjustment += old_length - text.len() as i32;
6542
6543 edits.push((start..end, text));
6544 }
6545
6546 self.transact(cx, |this, cx| {
6547 this.buffer.update(cx, |buffer, cx| {
6548 buffer.edit(edits, None, cx);
6549 });
6550
6551 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6552 s.select(new_selections);
6553 });
6554
6555 this.request_autoscroll(Autoscroll::fit(), cx);
6556 });
6557 }
6558
6559 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6560 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6561 let buffer = &display_map.buffer_snapshot;
6562 let selections = self.selections.all::<Point>(cx);
6563
6564 let mut edits = Vec::new();
6565 let mut selections_iter = selections.iter().peekable();
6566 while let Some(selection) = selections_iter.next() {
6567 // Avoid duplicating the same lines twice.
6568 let mut rows = selection.spanned_rows(false, &display_map);
6569
6570 while let Some(next_selection) = selections_iter.peek() {
6571 let next_rows = next_selection.spanned_rows(false, &display_map);
6572 if next_rows.start < rows.end {
6573 rows.end = next_rows.end;
6574 selections_iter.next().unwrap();
6575 } else {
6576 break;
6577 }
6578 }
6579
6580 // Copy the text from the selected row region and splice it either at the start
6581 // or end of the region.
6582 let start = Point::new(rows.start.0, 0);
6583 let end = Point::new(
6584 rows.end.previous_row().0,
6585 buffer.line_len(rows.end.previous_row()),
6586 );
6587 let text = buffer
6588 .text_for_range(start..end)
6589 .chain(Some("\n"))
6590 .collect::<String>();
6591 let insert_location = if upwards {
6592 Point::new(rows.end.0, 0)
6593 } else {
6594 start
6595 };
6596 edits.push((insert_location..insert_location, text));
6597 }
6598
6599 self.transact(cx, |this, cx| {
6600 this.buffer.update(cx, |buffer, cx| {
6601 buffer.edit(edits, None, cx);
6602 });
6603
6604 this.request_autoscroll(Autoscroll::fit(), cx);
6605 });
6606 }
6607
6608 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6609 self.duplicate_line(true, cx);
6610 }
6611
6612 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6613 self.duplicate_line(false, cx);
6614 }
6615
6616 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6617 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6618 let buffer = self.buffer.read(cx).snapshot(cx);
6619
6620 let mut edits = Vec::new();
6621 let mut unfold_ranges = Vec::new();
6622 let mut refold_ranges = Vec::new();
6623
6624 let selections = self.selections.all::<Point>(cx);
6625 let mut selections = selections.iter().peekable();
6626 let mut contiguous_row_selections = Vec::new();
6627 let mut new_selections = Vec::new();
6628
6629 while let Some(selection) = selections.next() {
6630 // Find all the selections that span a contiguous row range
6631 let (start_row, end_row) = consume_contiguous_rows(
6632 &mut contiguous_row_selections,
6633 selection,
6634 &display_map,
6635 &mut selections,
6636 );
6637
6638 // Move the text spanned by the row range to be before the line preceding the row range
6639 if start_row.0 > 0 {
6640 let range_to_move = Point::new(
6641 start_row.previous_row().0,
6642 buffer.line_len(start_row.previous_row()),
6643 )
6644 ..Point::new(
6645 end_row.previous_row().0,
6646 buffer.line_len(end_row.previous_row()),
6647 );
6648 let insertion_point = display_map
6649 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6650 .0;
6651
6652 // Don't move lines across excerpts
6653 if buffer
6654 .excerpt_boundaries_in_range((
6655 Bound::Excluded(insertion_point),
6656 Bound::Included(range_to_move.end),
6657 ))
6658 .next()
6659 .is_none()
6660 {
6661 let text = buffer
6662 .text_for_range(range_to_move.clone())
6663 .flat_map(|s| s.chars())
6664 .skip(1)
6665 .chain(['\n'])
6666 .collect::<String>();
6667
6668 edits.push((
6669 buffer.anchor_after(range_to_move.start)
6670 ..buffer.anchor_before(range_to_move.end),
6671 String::new(),
6672 ));
6673 let insertion_anchor = buffer.anchor_after(insertion_point);
6674 edits.push((insertion_anchor..insertion_anchor, text));
6675
6676 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6677
6678 // Move selections up
6679 new_selections.extend(contiguous_row_selections.drain(..).map(
6680 |mut selection| {
6681 selection.start.row -= row_delta;
6682 selection.end.row -= row_delta;
6683 selection
6684 },
6685 ));
6686
6687 // Move folds up
6688 unfold_ranges.push(range_to_move.clone());
6689 for fold in display_map.folds_in_range(
6690 buffer.anchor_before(range_to_move.start)
6691 ..buffer.anchor_after(range_to_move.end),
6692 ) {
6693 let mut start = fold.range.start.to_point(&buffer);
6694 let mut end = fold.range.end.to_point(&buffer);
6695 start.row -= row_delta;
6696 end.row -= row_delta;
6697 refold_ranges.push((start..end, fold.placeholder.clone()));
6698 }
6699 }
6700 }
6701
6702 // If we didn't move line(s), preserve the existing selections
6703 new_selections.append(&mut contiguous_row_selections);
6704 }
6705
6706 self.transact(cx, |this, cx| {
6707 this.unfold_ranges(unfold_ranges, true, true, cx);
6708 this.buffer.update(cx, |buffer, cx| {
6709 for (range, text) in edits {
6710 buffer.edit([(range, text)], None, cx);
6711 }
6712 });
6713 this.fold_ranges(refold_ranges, true, cx);
6714 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6715 s.select(new_selections);
6716 })
6717 });
6718 }
6719
6720 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6721 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6722 let buffer = self.buffer.read(cx).snapshot(cx);
6723
6724 let mut edits = Vec::new();
6725 let mut unfold_ranges = Vec::new();
6726 let mut refold_ranges = Vec::new();
6727
6728 let selections = self.selections.all::<Point>(cx);
6729 let mut selections = selections.iter().peekable();
6730 let mut contiguous_row_selections = Vec::new();
6731 let mut new_selections = Vec::new();
6732
6733 while let Some(selection) = selections.next() {
6734 // Find all the selections that span a contiguous row range
6735 let (start_row, end_row) = consume_contiguous_rows(
6736 &mut contiguous_row_selections,
6737 selection,
6738 &display_map,
6739 &mut selections,
6740 );
6741
6742 // Move the text spanned by the row range to be after the last line of the row range
6743 if end_row.0 <= buffer.max_point().row {
6744 let range_to_move =
6745 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6746 let insertion_point = display_map
6747 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6748 .0;
6749
6750 // Don't move lines across excerpt boundaries
6751 if buffer
6752 .excerpt_boundaries_in_range((
6753 Bound::Excluded(range_to_move.start),
6754 Bound::Included(insertion_point),
6755 ))
6756 .next()
6757 .is_none()
6758 {
6759 let mut text = String::from("\n");
6760 text.extend(buffer.text_for_range(range_to_move.clone()));
6761 text.pop(); // Drop trailing newline
6762 edits.push((
6763 buffer.anchor_after(range_to_move.start)
6764 ..buffer.anchor_before(range_to_move.end),
6765 String::new(),
6766 ));
6767 let insertion_anchor = buffer.anchor_after(insertion_point);
6768 edits.push((insertion_anchor..insertion_anchor, text));
6769
6770 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6771
6772 // Move selections down
6773 new_selections.extend(contiguous_row_selections.drain(..).map(
6774 |mut selection| {
6775 selection.start.row += row_delta;
6776 selection.end.row += row_delta;
6777 selection
6778 },
6779 ));
6780
6781 // Move folds down
6782 unfold_ranges.push(range_to_move.clone());
6783 for fold in display_map.folds_in_range(
6784 buffer.anchor_before(range_to_move.start)
6785 ..buffer.anchor_after(range_to_move.end),
6786 ) {
6787 let mut start = fold.range.start.to_point(&buffer);
6788 let mut end = fold.range.end.to_point(&buffer);
6789 start.row += row_delta;
6790 end.row += row_delta;
6791 refold_ranges.push((start..end, fold.placeholder.clone()));
6792 }
6793 }
6794 }
6795
6796 // If we didn't move line(s), preserve the existing selections
6797 new_selections.append(&mut contiguous_row_selections);
6798 }
6799
6800 self.transact(cx, |this, cx| {
6801 this.unfold_ranges(unfold_ranges, true, true, cx);
6802 this.buffer.update(cx, |buffer, cx| {
6803 for (range, text) in edits {
6804 buffer.edit([(range, text)], None, cx);
6805 }
6806 });
6807 this.fold_ranges(refold_ranges, true, cx);
6808 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6809 });
6810 }
6811
6812 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6813 let text_layout_details = &self.text_layout_details(cx);
6814 self.transact(cx, |this, cx| {
6815 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6816 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6817 let line_mode = s.line_mode;
6818 s.move_with(|display_map, selection| {
6819 if !selection.is_empty() || line_mode {
6820 return;
6821 }
6822
6823 let mut head = selection.head();
6824 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6825 if head.column() == display_map.line_len(head.row()) {
6826 transpose_offset = display_map
6827 .buffer_snapshot
6828 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6829 }
6830
6831 if transpose_offset == 0 {
6832 return;
6833 }
6834
6835 *head.column_mut() += 1;
6836 head = display_map.clip_point(head, Bias::Right);
6837 let goal = SelectionGoal::HorizontalPosition(
6838 display_map
6839 .x_for_display_point(head, text_layout_details)
6840 .into(),
6841 );
6842 selection.collapse_to(head, goal);
6843
6844 let transpose_start = display_map
6845 .buffer_snapshot
6846 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6847 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6848 let transpose_end = display_map
6849 .buffer_snapshot
6850 .clip_offset(transpose_offset + 1, Bias::Right);
6851 if let Some(ch) =
6852 display_map.buffer_snapshot.chars_at(transpose_start).next()
6853 {
6854 edits.push((transpose_start..transpose_offset, String::new()));
6855 edits.push((transpose_end..transpose_end, ch.to_string()));
6856 }
6857 }
6858 });
6859 edits
6860 });
6861 this.buffer
6862 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6863 let selections = this.selections.all::<usize>(cx);
6864 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6865 s.select(selections);
6866 });
6867 });
6868 }
6869
6870 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6871 self.rewrap_impl(true, cx)
6872 }
6873
6874 pub fn rewrap_impl(&mut self, only_text: bool, cx: &mut ViewContext<Self>) {
6875 let buffer = self.buffer.read(cx).snapshot(cx);
6876 let selections = self.selections.all::<Point>(cx);
6877 let mut selections = selections.iter().peekable();
6878
6879 let mut edits = Vec::new();
6880 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6881
6882 while let Some(selection) = selections.next() {
6883 let mut start_row = selection.start.row;
6884 let mut end_row = selection.end.row;
6885
6886 // Skip selections that overlap with a range that has already been rewrapped.
6887 let selection_range = start_row..end_row;
6888 if rewrapped_row_ranges
6889 .iter()
6890 .any(|range| range.overlaps(&selection_range))
6891 {
6892 continue;
6893 }
6894
6895 let mut should_rewrap = !only_text;
6896
6897 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6898 match language_scope.language_name().0.as_ref() {
6899 "Markdown" | "Plain Text" => {
6900 should_rewrap = true;
6901 }
6902 _ => {}
6903 }
6904 }
6905
6906 // Since not all lines in the selection may be at the same indent
6907 // level, choose the indent size that is the most common between all
6908 // of the lines.
6909 //
6910 // If there is a tie, we use the deepest indent.
6911 let (indent_size, indent_end) = {
6912 let mut indent_size_occurrences = HashMap::default();
6913 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6914
6915 for row in start_row..=end_row {
6916 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6917 rows_by_indent_size.entry(indent).or_default().push(row);
6918 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6919 }
6920
6921 let indent_size = indent_size_occurrences
6922 .into_iter()
6923 .max_by_key(|(indent, count)| (*count, indent.len))
6924 .map(|(indent, _)| indent)
6925 .unwrap_or_default();
6926 let row = rows_by_indent_size[&indent_size][0];
6927 let indent_end = Point::new(row, indent_size.len);
6928
6929 (indent_size, indent_end)
6930 };
6931
6932 let mut line_prefix = indent_size.chars().collect::<String>();
6933
6934 if let Some(comment_prefix) =
6935 buffer
6936 .language_scope_at(selection.head())
6937 .and_then(|language| {
6938 language
6939 .line_comment_prefixes()
6940 .iter()
6941 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6942 .cloned()
6943 })
6944 {
6945 line_prefix.push_str(&comment_prefix);
6946 should_rewrap = true;
6947 }
6948
6949 if selection.is_empty() {
6950 'expand_upwards: while start_row > 0 {
6951 let prev_row = start_row - 1;
6952 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6953 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6954 {
6955 start_row = prev_row;
6956 } else {
6957 break 'expand_upwards;
6958 }
6959 }
6960
6961 'expand_downwards: while end_row < buffer.max_point().row {
6962 let next_row = end_row + 1;
6963 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6964 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6965 {
6966 end_row = next_row;
6967 } else {
6968 break 'expand_downwards;
6969 }
6970 }
6971 }
6972
6973 if !should_rewrap {
6974 continue;
6975 }
6976
6977 let start = Point::new(start_row, 0);
6978 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6979 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6980 let Some(lines_without_prefixes) = selection_text
6981 .lines()
6982 .map(|line| {
6983 line.strip_prefix(&line_prefix)
6984 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6985 .ok_or_else(|| {
6986 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6987 })
6988 })
6989 .collect::<Result<Vec<_>, _>>()
6990 .log_err()
6991 else {
6992 continue;
6993 };
6994
6995 let unwrapped_text = lines_without_prefixes.join(" ");
6996 let wrap_column = buffer
6997 .settings_at(Point::new(start_row, 0), cx)
6998 .preferred_line_length as usize;
6999 let mut wrapped_text = String::new();
7000 let mut current_line = line_prefix.clone();
7001 for word in unwrapped_text.split_whitespace() {
7002 if current_line.len() + word.len() >= wrap_column {
7003 wrapped_text.push_str(¤t_line);
7004 wrapped_text.push('\n');
7005 current_line.truncate(line_prefix.len());
7006 }
7007
7008 if current_line.len() > line_prefix.len() {
7009 current_line.push(' ');
7010 }
7011
7012 current_line.push_str(word);
7013 }
7014
7015 if !current_line.is_empty() {
7016 wrapped_text.push_str(¤t_line);
7017 }
7018
7019 let diff = TextDiff::from_lines(&selection_text, &wrapped_text);
7020 let mut offset = start.to_offset(&buffer);
7021 let mut moved_since_edit = true;
7022
7023 for change in diff.iter_all_changes() {
7024 let value = change.value();
7025 match change.tag() {
7026 ChangeTag::Equal => {
7027 offset += value.len();
7028 moved_since_edit = true;
7029 }
7030 ChangeTag::Delete => {
7031 let start = buffer.anchor_after(offset);
7032 let end = buffer.anchor_before(offset + value.len());
7033
7034 if moved_since_edit {
7035 edits.push((start..end, String::new()));
7036 } else {
7037 edits.last_mut().unwrap().0.end = end;
7038 }
7039
7040 offset += value.len();
7041 moved_since_edit = false;
7042 }
7043 ChangeTag::Insert => {
7044 if moved_since_edit {
7045 let anchor = buffer.anchor_after(offset);
7046 edits.push((anchor..anchor, value.to_string()));
7047 } else {
7048 edits.last_mut().unwrap().1.push_str(value);
7049 }
7050
7051 moved_since_edit = false;
7052 }
7053 }
7054 }
7055
7056 rewrapped_row_ranges.push(start_row..=end_row);
7057 }
7058
7059 self.buffer
7060 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7061 }
7062
7063 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7064 let mut text = String::new();
7065 let buffer = self.buffer.read(cx).snapshot(cx);
7066 let mut selections = self.selections.all::<Point>(cx);
7067 let mut clipboard_selections = Vec::with_capacity(selections.len());
7068 {
7069 let max_point = buffer.max_point();
7070 let mut is_first = true;
7071 for selection in &mut selections {
7072 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7073 if is_entire_line {
7074 selection.start = Point::new(selection.start.row, 0);
7075 if !selection.is_empty() && selection.end.column == 0 {
7076 selection.end = cmp::min(max_point, selection.end);
7077 } else {
7078 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7079 }
7080 selection.goal = SelectionGoal::None;
7081 }
7082 if is_first {
7083 is_first = false;
7084 } else {
7085 text += "\n";
7086 }
7087 let mut len = 0;
7088 for chunk in buffer.text_for_range(selection.start..selection.end) {
7089 text.push_str(chunk);
7090 len += chunk.len();
7091 }
7092 clipboard_selections.push(ClipboardSelection {
7093 len,
7094 is_entire_line,
7095 first_line_indent: buffer
7096 .indent_size_for_line(MultiBufferRow(selection.start.row))
7097 .len,
7098 });
7099 }
7100 }
7101
7102 self.transact(cx, |this, cx| {
7103 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7104 s.select(selections);
7105 });
7106 this.insert("", cx);
7107 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7108 text,
7109 clipboard_selections,
7110 ));
7111 });
7112 }
7113
7114 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7115 let selections = self.selections.all::<Point>(cx);
7116 let buffer = self.buffer.read(cx).read(cx);
7117 let mut text = String::new();
7118
7119 let mut clipboard_selections = Vec::with_capacity(selections.len());
7120 {
7121 let max_point = buffer.max_point();
7122 let mut is_first = true;
7123 for selection in selections.iter() {
7124 let mut start = selection.start;
7125 let mut end = selection.end;
7126 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7127 if is_entire_line {
7128 start = Point::new(start.row, 0);
7129 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7130 }
7131 if is_first {
7132 is_first = false;
7133 } else {
7134 text += "\n";
7135 }
7136 let mut len = 0;
7137 for chunk in buffer.text_for_range(start..end) {
7138 text.push_str(chunk);
7139 len += chunk.len();
7140 }
7141 clipboard_selections.push(ClipboardSelection {
7142 len,
7143 is_entire_line,
7144 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7145 });
7146 }
7147 }
7148
7149 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7150 text,
7151 clipboard_selections,
7152 ));
7153 }
7154
7155 pub fn do_paste(
7156 &mut self,
7157 text: &String,
7158 clipboard_selections: Option<Vec<ClipboardSelection>>,
7159 handle_entire_lines: bool,
7160 cx: &mut ViewContext<Self>,
7161 ) {
7162 if self.read_only(cx) {
7163 return;
7164 }
7165
7166 let clipboard_text = Cow::Borrowed(text);
7167
7168 self.transact(cx, |this, cx| {
7169 if let Some(mut clipboard_selections) = clipboard_selections {
7170 let old_selections = this.selections.all::<usize>(cx);
7171 let all_selections_were_entire_line =
7172 clipboard_selections.iter().all(|s| s.is_entire_line);
7173 let first_selection_indent_column =
7174 clipboard_selections.first().map(|s| s.first_line_indent);
7175 if clipboard_selections.len() != old_selections.len() {
7176 clipboard_selections.drain(..);
7177 }
7178
7179 this.buffer.update(cx, |buffer, cx| {
7180 let snapshot = buffer.read(cx);
7181 let mut start_offset = 0;
7182 let mut edits = Vec::new();
7183 let mut original_indent_columns = Vec::new();
7184 for (ix, selection) in old_selections.iter().enumerate() {
7185 let to_insert;
7186 let entire_line;
7187 let original_indent_column;
7188 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7189 let end_offset = start_offset + clipboard_selection.len;
7190 to_insert = &clipboard_text[start_offset..end_offset];
7191 entire_line = clipboard_selection.is_entire_line;
7192 start_offset = end_offset + 1;
7193 original_indent_column = Some(clipboard_selection.first_line_indent);
7194 } else {
7195 to_insert = clipboard_text.as_str();
7196 entire_line = all_selections_were_entire_line;
7197 original_indent_column = first_selection_indent_column
7198 }
7199
7200 // If the corresponding selection was empty when this slice of the
7201 // clipboard text was written, then the entire line containing the
7202 // selection was copied. If this selection is also currently empty,
7203 // then paste the line before the current line of the buffer.
7204 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7205 let column = selection.start.to_point(&snapshot).column as usize;
7206 let line_start = selection.start - column;
7207 line_start..line_start
7208 } else {
7209 selection.range()
7210 };
7211
7212 edits.push((range, to_insert));
7213 original_indent_columns.extend(original_indent_column);
7214 }
7215 drop(snapshot);
7216
7217 buffer.edit(
7218 edits,
7219 Some(AutoindentMode::Block {
7220 original_indent_columns,
7221 }),
7222 cx,
7223 );
7224 });
7225
7226 let selections = this.selections.all::<usize>(cx);
7227 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7228 } else {
7229 this.insert(&clipboard_text, cx);
7230 }
7231 });
7232 }
7233
7234 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7235 if let Some(item) = cx.read_from_clipboard() {
7236 let entries = item.entries();
7237
7238 match entries.first() {
7239 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7240 // of all the pasted entries.
7241 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7242 .do_paste(
7243 clipboard_string.text(),
7244 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7245 true,
7246 cx,
7247 ),
7248 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7249 }
7250 }
7251 }
7252
7253 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7254 if self.read_only(cx) {
7255 return;
7256 }
7257
7258 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7259 if let Some((selections, _)) =
7260 self.selection_history.transaction(transaction_id).cloned()
7261 {
7262 self.change_selections(None, cx, |s| {
7263 s.select_anchors(selections.to_vec());
7264 });
7265 }
7266 self.request_autoscroll(Autoscroll::fit(), cx);
7267 self.unmark_text(cx);
7268 self.refresh_inline_completion(true, false, cx);
7269 cx.emit(EditorEvent::Edited { transaction_id });
7270 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7271 }
7272 }
7273
7274 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7275 if self.read_only(cx) {
7276 return;
7277 }
7278
7279 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7280 if let Some((_, Some(selections))) =
7281 self.selection_history.transaction(transaction_id).cloned()
7282 {
7283 self.change_selections(None, cx, |s| {
7284 s.select_anchors(selections.to_vec());
7285 });
7286 }
7287 self.request_autoscroll(Autoscroll::fit(), cx);
7288 self.unmark_text(cx);
7289 self.refresh_inline_completion(true, false, cx);
7290 cx.emit(EditorEvent::Edited { transaction_id });
7291 }
7292 }
7293
7294 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7295 self.buffer
7296 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7297 }
7298
7299 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7300 self.buffer
7301 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7302 }
7303
7304 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7305 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7306 let line_mode = s.line_mode;
7307 s.move_with(|map, selection| {
7308 let cursor = if selection.is_empty() && !line_mode {
7309 movement::left(map, selection.start)
7310 } else {
7311 selection.start
7312 };
7313 selection.collapse_to(cursor, SelectionGoal::None);
7314 });
7315 })
7316 }
7317
7318 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7319 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7320 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7321 })
7322 }
7323
7324 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7325 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7326 let line_mode = s.line_mode;
7327 s.move_with(|map, selection| {
7328 let cursor = if selection.is_empty() && !line_mode {
7329 movement::right(map, selection.end)
7330 } else {
7331 selection.end
7332 };
7333 selection.collapse_to(cursor, SelectionGoal::None)
7334 });
7335 })
7336 }
7337
7338 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7339 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7340 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7341 })
7342 }
7343
7344 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7345 if self.take_rename(true, cx).is_some() {
7346 return;
7347 }
7348
7349 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7350 cx.propagate();
7351 return;
7352 }
7353
7354 let text_layout_details = &self.text_layout_details(cx);
7355 let selection_count = self.selections.count();
7356 let first_selection = self.selections.first_anchor();
7357
7358 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7359 let line_mode = s.line_mode;
7360 s.move_with(|map, selection| {
7361 if !selection.is_empty() && !line_mode {
7362 selection.goal = SelectionGoal::None;
7363 }
7364 let (cursor, goal) = movement::up(
7365 map,
7366 selection.start,
7367 selection.goal,
7368 false,
7369 text_layout_details,
7370 );
7371 selection.collapse_to(cursor, goal);
7372 });
7373 });
7374
7375 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7376 {
7377 cx.propagate();
7378 }
7379 }
7380
7381 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7382 if self.take_rename(true, cx).is_some() {
7383 return;
7384 }
7385
7386 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7387 cx.propagate();
7388 return;
7389 }
7390
7391 let text_layout_details = &self.text_layout_details(cx);
7392
7393 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7394 let line_mode = s.line_mode;
7395 s.move_with(|map, selection| {
7396 if !selection.is_empty() && !line_mode {
7397 selection.goal = SelectionGoal::None;
7398 }
7399 let (cursor, goal) = movement::up_by_rows(
7400 map,
7401 selection.start,
7402 action.lines,
7403 selection.goal,
7404 false,
7405 text_layout_details,
7406 );
7407 selection.collapse_to(cursor, goal);
7408 });
7409 })
7410 }
7411
7412 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7413 if self.take_rename(true, cx).is_some() {
7414 return;
7415 }
7416
7417 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7418 cx.propagate();
7419 return;
7420 }
7421
7422 let text_layout_details = &self.text_layout_details(cx);
7423
7424 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7425 let line_mode = s.line_mode;
7426 s.move_with(|map, selection| {
7427 if !selection.is_empty() && !line_mode {
7428 selection.goal = SelectionGoal::None;
7429 }
7430 let (cursor, goal) = movement::down_by_rows(
7431 map,
7432 selection.start,
7433 action.lines,
7434 selection.goal,
7435 false,
7436 text_layout_details,
7437 );
7438 selection.collapse_to(cursor, goal);
7439 });
7440 })
7441 }
7442
7443 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7444 let text_layout_details = &self.text_layout_details(cx);
7445 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7446 s.move_heads_with(|map, head, goal| {
7447 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7448 })
7449 })
7450 }
7451
7452 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7453 let text_layout_details = &self.text_layout_details(cx);
7454 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7455 s.move_heads_with(|map, head, goal| {
7456 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7457 })
7458 })
7459 }
7460
7461 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7462 let Some(row_count) = self.visible_row_count() else {
7463 return;
7464 };
7465
7466 let text_layout_details = &self.text_layout_details(cx);
7467
7468 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7469 s.move_heads_with(|map, head, goal| {
7470 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7471 })
7472 })
7473 }
7474
7475 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7476 if self.take_rename(true, cx).is_some() {
7477 return;
7478 }
7479
7480 if self
7481 .context_menu
7482 .write()
7483 .as_mut()
7484 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7485 .unwrap_or(false)
7486 {
7487 return;
7488 }
7489
7490 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7491 cx.propagate();
7492 return;
7493 }
7494
7495 let Some(row_count) = self.visible_row_count() else {
7496 return;
7497 };
7498
7499 let autoscroll = if action.center_cursor {
7500 Autoscroll::center()
7501 } else {
7502 Autoscroll::fit()
7503 };
7504
7505 let text_layout_details = &self.text_layout_details(cx);
7506
7507 self.change_selections(Some(autoscroll), cx, |s| {
7508 let line_mode = s.line_mode;
7509 s.move_with(|map, selection| {
7510 if !selection.is_empty() && !line_mode {
7511 selection.goal = SelectionGoal::None;
7512 }
7513 let (cursor, goal) = movement::up_by_rows(
7514 map,
7515 selection.end,
7516 row_count,
7517 selection.goal,
7518 false,
7519 text_layout_details,
7520 );
7521 selection.collapse_to(cursor, goal);
7522 });
7523 });
7524 }
7525
7526 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7527 let text_layout_details = &self.text_layout_details(cx);
7528 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7529 s.move_heads_with(|map, head, goal| {
7530 movement::up(map, head, goal, false, text_layout_details)
7531 })
7532 })
7533 }
7534
7535 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7536 self.take_rename(true, cx);
7537
7538 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7539 cx.propagate();
7540 return;
7541 }
7542
7543 let text_layout_details = &self.text_layout_details(cx);
7544 let selection_count = self.selections.count();
7545 let first_selection = self.selections.first_anchor();
7546
7547 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7548 let line_mode = s.line_mode;
7549 s.move_with(|map, selection| {
7550 if !selection.is_empty() && !line_mode {
7551 selection.goal = SelectionGoal::None;
7552 }
7553 let (cursor, goal) = movement::down(
7554 map,
7555 selection.end,
7556 selection.goal,
7557 false,
7558 text_layout_details,
7559 );
7560 selection.collapse_to(cursor, goal);
7561 });
7562 });
7563
7564 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7565 {
7566 cx.propagate();
7567 }
7568 }
7569
7570 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7571 let Some(row_count) = self.visible_row_count() else {
7572 return;
7573 };
7574
7575 let text_layout_details = &self.text_layout_details(cx);
7576
7577 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7578 s.move_heads_with(|map, head, goal| {
7579 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7580 })
7581 })
7582 }
7583
7584 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7585 if self.take_rename(true, cx).is_some() {
7586 return;
7587 }
7588
7589 if self
7590 .context_menu
7591 .write()
7592 .as_mut()
7593 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7594 .unwrap_or(false)
7595 {
7596 return;
7597 }
7598
7599 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7600 cx.propagate();
7601 return;
7602 }
7603
7604 let Some(row_count) = self.visible_row_count() else {
7605 return;
7606 };
7607
7608 let autoscroll = if action.center_cursor {
7609 Autoscroll::center()
7610 } else {
7611 Autoscroll::fit()
7612 };
7613
7614 let text_layout_details = &self.text_layout_details(cx);
7615 self.change_selections(Some(autoscroll), cx, |s| {
7616 let line_mode = s.line_mode;
7617 s.move_with(|map, selection| {
7618 if !selection.is_empty() && !line_mode {
7619 selection.goal = SelectionGoal::None;
7620 }
7621 let (cursor, goal) = movement::down_by_rows(
7622 map,
7623 selection.end,
7624 row_count,
7625 selection.goal,
7626 false,
7627 text_layout_details,
7628 );
7629 selection.collapse_to(cursor, goal);
7630 });
7631 });
7632 }
7633
7634 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7635 let text_layout_details = &self.text_layout_details(cx);
7636 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7637 s.move_heads_with(|map, head, goal| {
7638 movement::down(map, head, goal, false, text_layout_details)
7639 })
7640 });
7641 }
7642
7643 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7644 if let Some(context_menu) = self.context_menu.write().as_mut() {
7645 context_menu.select_first(self.completion_provider.as_deref(), cx);
7646 }
7647 }
7648
7649 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7650 if let Some(context_menu) = self.context_menu.write().as_mut() {
7651 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7652 }
7653 }
7654
7655 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7656 if let Some(context_menu) = self.context_menu.write().as_mut() {
7657 context_menu.select_next(self.completion_provider.as_deref(), cx);
7658 }
7659 }
7660
7661 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7662 if let Some(context_menu) = self.context_menu.write().as_mut() {
7663 context_menu.select_last(self.completion_provider.as_deref(), cx);
7664 }
7665 }
7666
7667 pub fn move_to_previous_word_start(
7668 &mut self,
7669 _: &MoveToPreviousWordStart,
7670 cx: &mut ViewContext<Self>,
7671 ) {
7672 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7673 s.move_cursors_with(|map, head, _| {
7674 (
7675 movement::previous_word_start(map, head),
7676 SelectionGoal::None,
7677 )
7678 });
7679 })
7680 }
7681
7682 pub fn move_to_previous_subword_start(
7683 &mut self,
7684 _: &MoveToPreviousSubwordStart,
7685 cx: &mut ViewContext<Self>,
7686 ) {
7687 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7688 s.move_cursors_with(|map, head, _| {
7689 (
7690 movement::previous_subword_start(map, head),
7691 SelectionGoal::None,
7692 )
7693 });
7694 })
7695 }
7696
7697 pub fn select_to_previous_word_start(
7698 &mut self,
7699 _: &SelectToPreviousWordStart,
7700 cx: &mut ViewContext<Self>,
7701 ) {
7702 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7703 s.move_heads_with(|map, head, _| {
7704 (
7705 movement::previous_word_start(map, head),
7706 SelectionGoal::None,
7707 )
7708 });
7709 })
7710 }
7711
7712 pub fn select_to_previous_subword_start(
7713 &mut self,
7714 _: &SelectToPreviousSubwordStart,
7715 cx: &mut ViewContext<Self>,
7716 ) {
7717 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7718 s.move_heads_with(|map, head, _| {
7719 (
7720 movement::previous_subword_start(map, head),
7721 SelectionGoal::None,
7722 )
7723 });
7724 })
7725 }
7726
7727 pub fn delete_to_previous_word_start(
7728 &mut self,
7729 action: &DeleteToPreviousWordStart,
7730 cx: &mut ViewContext<Self>,
7731 ) {
7732 self.transact(cx, |this, cx| {
7733 this.select_autoclose_pair(cx);
7734 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7735 let line_mode = s.line_mode;
7736 s.move_with(|map, selection| {
7737 if selection.is_empty() && !line_mode {
7738 let cursor = if action.ignore_newlines {
7739 movement::previous_word_start(map, selection.head())
7740 } else {
7741 movement::previous_word_start_or_newline(map, selection.head())
7742 };
7743 selection.set_head(cursor, SelectionGoal::None);
7744 }
7745 });
7746 });
7747 this.insert("", cx);
7748 });
7749 }
7750
7751 pub fn delete_to_previous_subword_start(
7752 &mut self,
7753 _: &DeleteToPreviousSubwordStart,
7754 cx: &mut ViewContext<Self>,
7755 ) {
7756 self.transact(cx, |this, cx| {
7757 this.select_autoclose_pair(cx);
7758 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7759 let line_mode = s.line_mode;
7760 s.move_with(|map, selection| {
7761 if selection.is_empty() && !line_mode {
7762 let cursor = movement::previous_subword_start(map, selection.head());
7763 selection.set_head(cursor, SelectionGoal::None);
7764 }
7765 });
7766 });
7767 this.insert("", cx);
7768 });
7769 }
7770
7771 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7772 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7773 s.move_cursors_with(|map, head, _| {
7774 (movement::next_word_end(map, head), SelectionGoal::None)
7775 });
7776 })
7777 }
7778
7779 pub fn move_to_next_subword_end(
7780 &mut self,
7781 _: &MoveToNextSubwordEnd,
7782 cx: &mut ViewContext<Self>,
7783 ) {
7784 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7785 s.move_cursors_with(|map, head, _| {
7786 (movement::next_subword_end(map, head), SelectionGoal::None)
7787 });
7788 })
7789 }
7790
7791 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7792 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7793 s.move_heads_with(|map, head, _| {
7794 (movement::next_word_end(map, head), SelectionGoal::None)
7795 });
7796 })
7797 }
7798
7799 pub fn select_to_next_subword_end(
7800 &mut self,
7801 _: &SelectToNextSubwordEnd,
7802 cx: &mut ViewContext<Self>,
7803 ) {
7804 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7805 s.move_heads_with(|map, head, _| {
7806 (movement::next_subword_end(map, head), SelectionGoal::None)
7807 });
7808 })
7809 }
7810
7811 pub fn delete_to_next_word_end(
7812 &mut self,
7813 action: &DeleteToNextWordEnd,
7814 cx: &mut ViewContext<Self>,
7815 ) {
7816 self.transact(cx, |this, cx| {
7817 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7818 let line_mode = s.line_mode;
7819 s.move_with(|map, selection| {
7820 if selection.is_empty() && !line_mode {
7821 let cursor = if action.ignore_newlines {
7822 movement::next_word_end(map, selection.head())
7823 } else {
7824 movement::next_word_end_or_newline(map, selection.head())
7825 };
7826 selection.set_head(cursor, SelectionGoal::None);
7827 }
7828 });
7829 });
7830 this.insert("", cx);
7831 });
7832 }
7833
7834 pub fn delete_to_next_subword_end(
7835 &mut self,
7836 _: &DeleteToNextSubwordEnd,
7837 cx: &mut ViewContext<Self>,
7838 ) {
7839 self.transact(cx, |this, cx| {
7840 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7841 s.move_with(|map, selection| {
7842 if selection.is_empty() {
7843 let cursor = movement::next_subword_end(map, selection.head());
7844 selection.set_head(cursor, SelectionGoal::None);
7845 }
7846 });
7847 });
7848 this.insert("", cx);
7849 });
7850 }
7851
7852 pub fn move_to_beginning_of_line(
7853 &mut self,
7854 action: &MoveToBeginningOfLine,
7855 cx: &mut ViewContext<Self>,
7856 ) {
7857 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7858 s.move_cursors_with(|map, head, _| {
7859 (
7860 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7861 SelectionGoal::None,
7862 )
7863 });
7864 })
7865 }
7866
7867 pub fn select_to_beginning_of_line(
7868 &mut self,
7869 action: &SelectToBeginningOfLine,
7870 cx: &mut ViewContext<Self>,
7871 ) {
7872 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7873 s.move_heads_with(|map, head, _| {
7874 (
7875 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7876 SelectionGoal::None,
7877 )
7878 });
7879 });
7880 }
7881
7882 pub fn delete_to_beginning_of_line(
7883 &mut self,
7884 _: &DeleteToBeginningOfLine,
7885 cx: &mut ViewContext<Self>,
7886 ) {
7887 self.transact(cx, |this, cx| {
7888 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7889 s.move_with(|_, selection| {
7890 selection.reversed = true;
7891 });
7892 });
7893
7894 this.select_to_beginning_of_line(
7895 &SelectToBeginningOfLine {
7896 stop_at_soft_wraps: false,
7897 },
7898 cx,
7899 );
7900 this.backspace(&Backspace, cx);
7901 });
7902 }
7903
7904 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7905 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7906 s.move_cursors_with(|map, head, _| {
7907 (
7908 movement::line_end(map, head, action.stop_at_soft_wraps),
7909 SelectionGoal::None,
7910 )
7911 });
7912 })
7913 }
7914
7915 pub fn select_to_end_of_line(
7916 &mut self,
7917 action: &SelectToEndOfLine,
7918 cx: &mut ViewContext<Self>,
7919 ) {
7920 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7921 s.move_heads_with(|map, head, _| {
7922 (
7923 movement::line_end(map, head, action.stop_at_soft_wraps),
7924 SelectionGoal::None,
7925 )
7926 });
7927 })
7928 }
7929
7930 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7931 self.transact(cx, |this, cx| {
7932 this.select_to_end_of_line(
7933 &SelectToEndOfLine {
7934 stop_at_soft_wraps: false,
7935 },
7936 cx,
7937 );
7938 this.delete(&Delete, cx);
7939 });
7940 }
7941
7942 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7943 self.transact(cx, |this, cx| {
7944 this.select_to_end_of_line(
7945 &SelectToEndOfLine {
7946 stop_at_soft_wraps: false,
7947 },
7948 cx,
7949 );
7950 this.cut(&Cut, cx);
7951 });
7952 }
7953
7954 pub fn move_to_start_of_paragraph(
7955 &mut self,
7956 _: &MoveToStartOfParagraph,
7957 cx: &mut ViewContext<Self>,
7958 ) {
7959 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7960 cx.propagate();
7961 return;
7962 }
7963
7964 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7965 s.move_with(|map, selection| {
7966 selection.collapse_to(
7967 movement::start_of_paragraph(map, selection.head(), 1),
7968 SelectionGoal::None,
7969 )
7970 });
7971 })
7972 }
7973
7974 pub fn move_to_end_of_paragraph(
7975 &mut self,
7976 _: &MoveToEndOfParagraph,
7977 cx: &mut ViewContext<Self>,
7978 ) {
7979 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7980 cx.propagate();
7981 return;
7982 }
7983
7984 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7985 s.move_with(|map, selection| {
7986 selection.collapse_to(
7987 movement::end_of_paragraph(map, selection.head(), 1),
7988 SelectionGoal::None,
7989 )
7990 });
7991 })
7992 }
7993
7994 pub fn select_to_start_of_paragraph(
7995 &mut self,
7996 _: &SelectToStartOfParagraph,
7997 cx: &mut ViewContext<Self>,
7998 ) {
7999 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8000 cx.propagate();
8001 return;
8002 }
8003
8004 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8005 s.move_heads_with(|map, head, _| {
8006 (
8007 movement::start_of_paragraph(map, head, 1),
8008 SelectionGoal::None,
8009 )
8010 });
8011 })
8012 }
8013
8014 pub fn select_to_end_of_paragraph(
8015 &mut self,
8016 _: &SelectToEndOfParagraph,
8017 cx: &mut ViewContext<Self>,
8018 ) {
8019 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8020 cx.propagate();
8021 return;
8022 }
8023
8024 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8025 s.move_heads_with(|map, head, _| {
8026 (
8027 movement::end_of_paragraph(map, head, 1),
8028 SelectionGoal::None,
8029 )
8030 });
8031 })
8032 }
8033
8034 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
8035 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8036 cx.propagate();
8037 return;
8038 }
8039
8040 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8041 s.select_ranges(vec![0..0]);
8042 });
8043 }
8044
8045 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
8046 let mut selection = self.selections.last::<Point>(cx);
8047 selection.set_head(Point::zero(), SelectionGoal::None);
8048
8049 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8050 s.select(vec![selection]);
8051 });
8052 }
8053
8054 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
8055 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8056 cx.propagate();
8057 return;
8058 }
8059
8060 let cursor = self.buffer.read(cx).read(cx).len();
8061 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8062 s.select_ranges(vec![cursor..cursor])
8063 });
8064 }
8065
8066 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8067 self.nav_history = nav_history;
8068 }
8069
8070 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8071 self.nav_history.as_ref()
8072 }
8073
8074 fn push_to_nav_history(
8075 &mut self,
8076 cursor_anchor: Anchor,
8077 new_position: Option<Point>,
8078 cx: &mut ViewContext<Self>,
8079 ) {
8080 if let Some(nav_history) = self.nav_history.as_mut() {
8081 let buffer = self.buffer.read(cx).read(cx);
8082 let cursor_position = cursor_anchor.to_point(&buffer);
8083 let scroll_state = self.scroll_manager.anchor();
8084 let scroll_top_row = scroll_state.top_row(&buffer);
8085 drop(buffer);
8086
8087 if let Some(new_position) = new_position {
8088 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8089 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8090 return;
8091 }
8092 }
8093
8094 nav_history.push(
8095 Some(NavigationData {
8096 cursor_anchor,
8097 cursor_position,
8098 scroll_anchor: scroll_state,
8099 scroll_top_row,
8100 }),
8101 cx,
8102 );
8103 }
8104 }
8105
8106 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8107 let buffer = self.buffer.read(cx).snapshot(cx);
8108 let mut selection = self.selections.first::<usize>(cx);
8109 selection.set_head(buffer.len(), SelectionGoal::None);
8110 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8111 s.select(vec![selection]);
8112 });
8113 }
8114
8115 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8116 let end = self.buffer.read(cx).read(cx).len();
8117 self.change_selections(None, cx, |s| {
8118 s.select_ranges(vec![0..end]);
8119 });
8120 }
8121
8122 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8123 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8124 let mut selections = self.selections.all::<Point>(cx);
8125 let max_point = display_map.buffer_snapshot.max_point();
8126 for selection in &mut selections {
8127 let rows = selection.spanned_rows(true, &display_map);
8128 selection.start = Point::new(rows.start.0, 0);
8129 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8130 selection.reversed = false;
8131 }
8132 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8133 s.select(selections);
8134 });
8135 }
8136
8137 pub fn split_selection_into_lines(
8138 &mut self,
8139 _: &SplitSelectionIntoLines,
8140 cx: &mut ViewContext<Self>,
8141 ) {
8142 let mut to_unfold = Vec::new();
8143 let mut new_selection_ranges = Vec::new();
8144 {
8145 let selections = self.selections.all::<Point>(cx);
8146 let buffer = self.buffer.read(cx).read(cx);
8147 for selection in selections {
8148 for row in selection.start.row..selection.end.row {
8149 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8150 new_selection_ranges.push(cursor..cursor);
8151 }
8152 new_selection_ranges.push(selection.end..selection.end);
8153 to_unfold.push(selection.start..selection.end);
8154 }
8155 }
8156 self.unfold_ranges(to_unfold, true, true, cx);
8157 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8158 s.select_ranges(new_selection_ranges);
8159 });
8160 }
8161
8162 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8163 self.add_selection(true, cx);
8164 }
8165
8166 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8167 self.add_selection(false, cx);
8168 }
8169
8170 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8171 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8172 let mut selections = self.selections.all::<Point>(cx);
8173 let text_layout_details = self.text_layout_details(cx);
8174 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8175 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8176 let range = oldest_selection.display_range(&display_map).sorted();
8177
8178 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8179 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8180 let positions = start_x.min(end_x)..start_x.max(end_x);
8181
8182 selections.clear();
8183 let mut stack = Vec::new();
8184 for row in range.start.row().0..=range.end.row().0 {
8185 if let Some(selection) = self.selections.build_columnar_selection(
8186 &display_map,
8187 DisplayRow(row),
8188 &positions,
8189 oldest_selection.reversed,
8190 &text_layout_details,
8191 ) {
8192 stack.push(selection.id);
8193 selections.push(selection);
8194 }
8195 }
8196
8197 if above {
8198 stack.reverse();
8199 }
8200
8201 AddSelectionsState { above, stack }
8202 });
8203
8204 let last_added_selection = *state.stack.last().unwrap();
8205 let mut new_selections = Vec::new();
8206 if above == state.above {
8207 let end_row = if above {
8208 DisplayRow(0)
8209 } else {
8210 display_map.max_point().row()
8211 };
8212
8213 'outer: for selection in selections {
8214 if selection.id == last_added_selection {
8215 let range = selection.display_range(&display_map).sorted();
8216 debug_assert_eq!(range.start.row(), range.end.row());
8217 let mut row = range.start.row();
8218 let positions =
8219 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8220 px(start)..px(end)
8221 } else {
8222 let start_x =
8223 display_map.x_for_display_point(range.start, &text_layout_details);
8224 let end_x =
8225 display_map.x_for_display_point(range.end, &text_layout_details);
8226 start_x.min(end_x)..start_x.max(end_x)
8227 };
8228
8229 while row != end_row {
8230 if above {
8231 row.0 -= 1;
8232 } else {
8233 row.0 += 1;
8234 }
8235
8236 if let Some(new_selection) = self.selections.build_columnar_selection(
8237 &display_map,
8238 row,
8239 &positions,
8240 selection.reversed,
8241 &text_layout_details,
8242 ) {
8243 state.stack.push(new_selection.id);
8244 if above {
8245 new_selections.push(new_selection);
8246 new_selections.push(selection);
8247 } else {
8248 new_selections.push(selection);
8249 new_selections.push(new_selection);
8250 }
8251
8252 continue 'outer;
8253 }
8254 }
8255 }
8256
8257 new_selections.push(selection);
8258 }
8259 } else {
8260 new_selections = selections;
8261 new_selections.retain(|s| s.id != last_added_selection);
8262 state.stack.pop();
8263 }
8264
8265 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8266 s.select(new_selections);
8267 });
8268 if state.stack.len() > 1 {
8269 self.add_selections_state = Some(state);
8270 }
8271 }
8272
8273 pub fn select_next_match_internal(
8274 &mut self,
8275 display_map: &DisplaySnapshot,
8276 replace_newest: bool,
8277 autoscroll: Option<Autoscroll>,
8278 cx: &mut ViewContext<Self>,
8279 ) -> Result<()> {
8280 fn select_next_match_ranges(
8281 this: &mut Editor,
8282 range: Range<usize>,
8283 replace_newest: bool,
8284 auto_scroll: Option<Autoscroll>,
8285 cx: &mut ViewContext<Editor>,
8286 ) {
8287 this.unfold_ranges([range.clone()], false, true, cx);
8288 this.change_selections(auto_scroll, cx, |s| {
8289 if replace_newest {
8290 s.delete(s.newest_anchor().id);
8291 }
8292 s.insert_range(range.clone());
8293 });
8294 }
8295
8296 let buffer = &display_map.buffer_snapshot;
8297 let mut selections = self.selections.all::<usize>(cx);
8298 if let Some(mut select_next_state) = self.select_next_state.take() {
8299 let query = &select_next_state.query;
8300 if !select_next_state.done {
8301 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8302 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8303 let mut next_selected_range = None;
8304
8305 let bytes_after_last_selection =
8306 buffer.bytes_in_range(last_selection.end..buffer.len());
8307 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8308 let query_matches = query
8309 .stream_find_iter(bytes_after_last_selection)
8310 .map(|result| (last_selection.end, result))
8311 .chain(
8312 query
8313 .stream_find_iter(bytes_before_first_selection)
8314 .map(|result| (0, result)),
8315 );
8316
8317 for (start_offset, query_match) in query_matches {
8318 let query_match = query_match.unwrap(); // can only fail due to I/O
8319 let offset_range =
8320 start_offset + query_match.start()..start_offset + query_match.end();
8321 let display_range = offset_range.start.to_display_point(display_map)
8322 ..offset_range.end.to_display_point(display_map);
8323
8324 if !select_next_state.wordwise
8325 || (!movement::is_inside_word(display_map, display_range.start)
8326 && !movement::is_inside_word(display_map, display_range.end))
8327 {
8328 // TODO: This is n^2, because we might check all the selections
8329 if !selections
8330 .iter()
8331 .any(|selection| selection.range().overlaps(&offset_range))
8332 {
8333 next_selected_range = Some(offset_range);
8334 break;
8335 }
8336 }
8337 }
8338
8339 if let Some(next_selected_range) = next_selected_range {
8340 select_next_match_ranges(
8341 self,
8342 next_selected_range,
8343 replace_newest,
8344 autoscroll,
8345 cx,
8346 );
8347 } else {
8348 select_next_state.done = true;
8349 }
8350 }
8351
8352 self.select_next_state = Some(select_next_state);
8353 } else {
8354 let mut only_carets = true;
8355 let mut same_text_selected = true;
8356 let mut selected_text = None;
8357
8358 let mut selections_iter = selections.iter().peekable();
8359 while let Some(selection) = selections_iter.next() {
8360 if selection.start != selection.end {
8361 only_carets = false;
8362 }
8363
8364 if same_text_selected {
8365 if selected_text.is_none() {
8366 selected_text =
8367 Some(buffer.text_for_range(selection.range()).collect::<String>());
8368 }
8369
8370 if let Some(next_selection) = selections_iter.peek() {
8371 if next_selection.range().len() == selection.range().len() {
8372 let next_selected_text = buffer
8373 .text_for_range(next_selection.range())
8374 .collect::<String>();
8375 if Some(next_selected_text) != selected_text {
8376 same_text_selected = false;
8377 selected_text = None;
8378 }
8379 } else {
8380 same_text_selected = false;
8381 selected_text = None;
8382 }
8383 }
8384 }
8385 }
8386
8387 if only_carets {
8388 for selection in &mut selections {
8389 let word_range = movement::surrounding_word(
8390 display_map,
8391 selection.start.to_display_point(display_map),
8392 );
8393 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8394 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8395 selection.goal = SelectionGoal::None;
8396 selection.reversed = false;
8397 select_next_match_ranges(
8398 self,
8399 selection.start..selection.end,
8400 replace_newest,
8401 autoscroll,
8402 cx,
8403 );
8404 }
8405
8406 if selections.len() == 1 {
8407 let selection = selections
8408 .last()
8409 .expect("ensured that there's only one selection");
8410 let query = buffer
8411 .text_for_range(selection.start..selection.end)
8412 .collect::<String>();
8413 let is_empty = query.is_empty();
8414 let select_state = SelectNextState {
8415 query: AhoCorasick::new(&[query])?,
8416 wordwise: true,
8417 done: is_empty,
8418 };
8419 self.select_next_state = Some(select_state);
8420 } else {
8421 self.select_next_state = None;
8422 }
8423 } else if let Some(selected_text) = selected_text {
8424 self.select_next_state = Some(SelectNextState {
8425 query: AhoCorasick::new(&[selected_text])?,
8426 wordwise: false,
8427 done: false,
8428 });
8429 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8430 }
8431 }
8432 Ok(())
8433 }
8434
8435 pub fn select_all_matches(
8436 &mut self,
8437 _action: &SelectAllMatches,
8438 cx: &mut ViewContext<Self>,
8439 ) -> Result<()> {
8440 self.push_to_selection_history();
8441 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8442
8443 self.select_next_match_internal(&display_map, false, None, cx)?;
8444 let Some(select_next_state) = self.select_next_state.as_mut() else {
8445 return Ok(());
8446 };
8447 if select_next_state.done {
8448 return Ok(());
8449 }
8450
8451 let mut new_selections = self.selections.all::<usize>(cx);
8452
8453 let buffer = &display_map.buffer_snapshot;
8454 let query_matches = select_next_state
8455 .query
8456 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8457
8458 for query_match in query_matches {
8459 let query_match = query_match.unwrap(); // can only fail due to I/O
8460 let offset_range = query_match.start()..query_match.end();
8461 let display_range = offset_range.start.to_display_point(&display_map)
8462 ..offset_range.end.to_display_point(&display_map);
8463
8464 if !select_next_state.wordwise
8465 || (!movement::is_inside_word(&display_map, display_range.start)
8466 && !movement::is_inside_word(&display_map, display_range.end))
8467 {
8468 self.selections.change_with(cx, |selections| {
8469 new_selections.push(Selection {
8470 id: selections.new_selection_id(),
8471 start: offset_range.start,
8472 end: offset_range.end,
8473 reversed: false,
8474 goal: SelectionGoal::None,
8475 });
8476 });
8477 }
8478 }
8479
8480 new_selections.sort_by_key(|selection| selection.start);
8481 let mut ix = 0;
8482 while ix + 1 < new_selections.len() {
8483 let current_selection = &new_selections[ix];
8484 let next_selection = &new_selections[ix + 1];
8485 if current_selection.range().overlaps(&next_selection.range()) {
8486 if current_selection.id < next_selection.id {
8487 new_selections.remove(ix + 1);
8488 } else {
8489 new_selections.remove(ix);
8490 }
8491 } else {
8492 ix += 1;
8493 }
8494 }
8495
8496 select_next_state.done = true;
8497 self.unfold_ranges(
8498 new_selections.iter().map(|selection| selection.range()),
8499 false,
8500 false,
8501 cx,
8502 );
8503 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8504 selections.select(new_selections)
8505 });
8506
8507 Ok(())
8508 }
8509
8510 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8511 self.push_to_selection_history();
8512 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8513 self.select_next_match_internal(
8514 &display_map,
8515 action.replace_newest,
8516 Some(Autoscroll::newest()),
8517 cx,
8518 )?;
8519 Ok(())
8520 }
8521
8522 pub fn select_previous(
8523 &mut self,
8524 action: &SelectPrevious,
8525 cx: &mut ViewContext<Self>,
8526 ) -> Result<()> {
8527 self.push_to_selection_history();
8528 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8529 let buffer = &display_map.buffer_snapshot;
8530 let mut selections = self.selections.all::<usize>(cx);
8531 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8532 let query = &select_prev_state.query;
8533 if !select_prev_state.done {
8534 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8535 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8536 let mut next_selected_range = None;
8537 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8538 let bytes_before_last_selection =
8539 buffer.reversed_bytes_in_range(0..last_selection.start);
8540 let bytes_after_first_selection =
8541 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8542 let query_matches = query
8543 .stream_find_iter(bytes_before_last_selection)
8544 .map(|result| (last_selection.start, result))
8545 .chain(
8546 query
8547 .stream_find_iter(bytes_after_first_selection)
8548 .map(|result| (buffer.len(), result)),
8549 );
8550 for (end_offset, query_match) in query_matches {
8551 let query_match = query_match.unwrap(); // can only fail due to I/O
8552 let offset_range =
8553 end_offset - query_match.end()..end_offset - query_match.start();
8554 let display_range = offset_range.start.to_display_point(&display_map)
8555 ..offset_range.end.to_display_point(&display_map);
8556
8557 if !select_prev_state.wordwise
8558 || (!movement::is_inside_word(&display_map, display_range.start)
8559 && !movement::is_inside_word(&display_map, display_range.end))
8560 {
8561 next_selected_range = Some(offset_range);
8562 break;
8563 }
8564 }
8565
8566 if let Some(next_selected_range) = next_selected_range {
8567 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
8568 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8569 if action.replace_newest {
8570 s.delete(s.newest_anchor().id);
8571 }
8572 s.insert_range(next_selected_range);
8573 });
8574 } else {
8575 select_prev_state.done = true;
8576 }
8577 }
8578
8579 self.select_prev_state = Some(select_prev_state);
8580 } else {
8581 let mut only_carets = true;
8582 let mut same_text_selected = true;
8583 let mut selected_text = None;
8584
8585 let mut selections_iter = selections.iter().peekable();
8586 while let Some(selection) = selections_iter.next() {
8587 if selection.start != selection.end {
8588 only_carets = false;
8589 }
8590
8591 if same_text_selected {
8592 if selected_text.is_none() {
8593 selected_text =
8594 Some(buffer.text_for_range(selection.range()).collect::<String>());
8595 }
8596
8597 if let Some(next_selection) = selections_iter.peek() {
8598 if next_selection.range().len() == selection.range().len() {
8599 let next_selected_text = buffer
8600 .text_for_range(next_selection.range())
8601 .collect::<String>();
8602 if Some(next_selected_text) != selected_text {
8603 same_text_selected = false;
8604 selected_text = None;
8605 }
8606 } else {
8607 same_text_selected = false;
8608 selected_text = None;
8609 }
8610 }
8611 }
8612 }
8613
8614 if only_carets {
8615 for selection in &mut selections {
8616 let word_range = movement::surrounding_word(
8617 &display_map,
8618 selection.start.to_display_point(&display_map),
8619 );
8620 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8621 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8622 selection.goal = SelectionGoal::None;
8623 selection.reversed = false;
8624 }
8625 if selections.len() == 1 {
8626 let selection = selections
8627 .last()
8628 .expect("ensured that there's only one selection");
8629 let query = buffer
8630 .text_for_range(selection.start..selection.end)
8631 .collect::<String>();
8632 let is_empty = query.is_empty();
8633 let select_state = SelectNextState {
8634 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8635 wordwise: true,
8636 done: is_empty,
8637 };
8638 self.select_prev_state = Some(select_state);
8639 } else {
8640 self.select_prev_state = None;
8641 }
8642
8643 self.unfold_ranges(
8644 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8645 false,
8646 true,
8647 cx,
8648 );
8649 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8650 s.select(selections);
8651 });
8652 } else if let Some(selected_text) = selected_text {
8653 self.select_prev_state = Some(SelectNextState {
8654 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8655 wordwise: false,
8656 done: false,
8657 });
8658 self.select_previous(action, cx)?;
8659 }
8660 }
8661 Ok(())
8662 }
8663
8664 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8665 let text_layout_details = &self.text_layout_details(cx);
8666 self.transact(cx, |this, cx| {
8667 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8668 let mut edits = Vec::new();
8669 let mut selection_edit_ranges = Vec::new();
8670 let mut last_toggled_row = None;
8671 let snapshot = this.buffer.read(cx).read(cx);
8672 let empty_str: Arc<str> = Arc::default();
8673 let mut suffixes_inserted = Vec::new();
8674
8675 fn comment_prefix_range(
8676 snapshot: &MultiBufferSnapshot,
8677 row: MultiBufferRow,
8678 comment_prefix: &str,
8679 comment_prefix_whitespace: &str,
8680 ) -> Range<Point> {
8681 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
8682
8683 let mut line_bytes = snapshot
8684 .bytes_in_range(start..snapshot.max_point())
8685 .flatten()
8686 .copied();
8687
8688 // If this line currently begins with the line comment prefix, then record
8689 // the range containing the prefix.
8690 if line_bytes
8691 .by_ref()
8692 .take(comment_prefix.len())
8693 .eq(comment_prefix.bytes())
8694 {
8695 // Include any whitespace that matches the comment prefix.
8696 let matching_whitespace_len = line_bytes
8697 .zip(comment_prefix_whitespace.bytes())
8698 .take_while(|(a, b)| a == b)
8699 .count() as u32;
8700 let end = Point::new(
8701 start.row,
8702 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8703 );
8704 start..end
8705 } else {
8706 start..start
8707 }
8708 }
8709
8710 fn comment_suffix_range(
8711 snapshot: &MultiBufferSnapshot,
8712 row: MultiBufferRow,
8713 comment_suffix: &str,
8714 comment_suffix_has_leading_space: bool,
8715 ) -> Range<Point> {
8716 let end = Point::new(row.0, snapshot.line_len(row));
8717 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8718
8719 let mut line_end_bytes = snapshot
8720 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8721 .flatten()
8722 .copied();
8723
8724 let leading_space_len = if suffix_start_column > 0
8725 && line_end_bytes.next() == Some(b' ')
8726 && comment_suffix_has_leading_space
8727 {
8728 1
8729 } else {
8730 0
8731 };
8732
8733 // If this line currently begins with the line comment prefix, then record
8734 // the range containing the prefix.
8735 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8736 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8737 start..end
8738 } else {
8739 end..end
8740 }
8741 }
8742
8743 // TODO: Handle selections that cross excerpts
8744 for selection in &mut selections {
8745 let start_column = snapshot
8746 .indent_size_for_line(MultiBufferRow(selection.start.row))
8747 .len;
8748 let language = if let Some(language) =
8749 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8750 {
8751 language
8752 } else {
8753 continue;
8754 };
8755
8756 selection_edit_ranges.clear();
8757
8758 // If multiple selections contain a given row, avoid processing that
8759 // row more than once.
8760 let mut start_row = MultiBufferRow(selection.start.row);
8761 if last_toggled_row == Some(start_row) {
8762 start_row = start_row.next_row();
8763 }
8764 let end_row =
8765 if selection.end.row > selection.start.row && selection.end.column == 0 {
8766 MultiBufferRow(selection.end.row - 1)
8767 } else {
8768 MultiBufferRow(selection.end.row)
8769 };
8770 last_toggled_row = Some(end_row);
8771
8772 if start_row > end_row {
8773 continue;
8774 }
8775
8776 // If the language has line comments, toggle those.
8777 let full_comment_prefixes = language.line_comment_prefixes();
8778 if !full_comment_prefixes.is_empty() {
8779 let first_prefix = full_comment_prefixes
8780 .first()
8781 .expect("prefixes is non-empty");
8782 let prefix_trimmed_lengths = full_comment_prefixes
8783 .iter()
8784 .map(|p| p.trim_end_matches(' ').len())
8785 .collect::<SmallVec<[usize; 4]>>();
8786
8787 let mut all_selection_lines_are_comments = true;
8788
8789 for row in start_row.0..=end_row.0 {
8790 let row = MultiBufferRow(row);
8791 if start_row < end_row && snapshot.is_line_blank(row) {
8792 continue;
8793 }
8794
8795 let prefix_range = full_comment_prefixes
8796 .iter()
8797 .zip(prefix_trimmed_lengths.iter().copied())
8798 .map(|(prefix, trimmed_prefix_len)| {
8799 comment_prefix_range(
8800 snapshot.deref(),
8801 row,
8802 &prefix[..trimmed_prefix_len],
8803 &prefix[trimmed_prefix_len..],
8804 )
8805 })
8806 .max_by_key(|range| range.end.column - range.start.column)
8807 .expect("prefixes is non-empty");
8808
8809 if prefix_range.is_empty() {
8810 all_selection_lines_are_comments = false;
8811 }
8812
8813 selection_edit_ranges.push(prefix_range);
8814 }
8815
8816 if all_selection_lines_are_comments {
8817 edits.extend(
8818 selection_edit_ranges
8819 .iter()
8820 .cloned()
8821 .map(|range| (range, empty_str.clone())),
8822 );
8823 } else {
8824 let min_column = selection_edit_ranges
8825 .iter()
8826 .map(|range| range.start.column)
8827 .min()
8828 .unwrap_or(0);
8829 edits.extend(selection_edit_ranges.iter().map(|range| {
8830 let position = Point::new(range.start.row, min_column);
8831 (position..position, first_prefix.clone())
8832 }));
8833 }
8834 } else if let Some((full_comment_prefix, comment_suffix)) =
8835 language.block_comment_delimiters()
8836 {
8837 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8838 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8839 let prefix_range = comment_prefix_range(
8840 snapshot.deref(),
8841 start_row,
8842 comment_prefix,
8843 comment_prefix_whitespace,
8844 );
8845 let suffix_range = comment_suffix_range(
8846 snapshot.deref(),
8847 end_row,
8848 comment_suffix.trim_start_matches(' '),
8849 comment_suffix.starts_with(' '),
8850 );
8851
8852 if prefix_range.is_empty() || suffix_range.is_empty() {
8853 edits.push((
8854 prefix_range.start..prefix_range.start,
8855 full_comment_prefix.clone(),
8856 ));
8857 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8858 suffixes_inserted.push((end_row, comment_suffix.len()));
8859 } else {
8860 edits.push((prefix_range, empty_str.clone()));
8861 edits.push((suffix_range, empty_str.clone()));
8862 }
8863 } else {
8864 continue;
8865 }
8866 }
8867
8868 drop(snapshot);
8869 this.buffer.update(cx, |buffer, cx| {
8870 buffer.edit(edits, None, cx);
8871 });
8872
8873 // Adjust selections so that they end before any comment suffixes that
8874 // were inserted.
8875 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8876 let mut selections = this.selections.all::<Point>(cx);
8877 let snapshot = this.buffer.read(cx).read(cx);
8878 for selection in &mut selections {
8879 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8880 match row.cmp(&MultiBufferRow(selection.end.row)) {
8881 Ordering::Less => {
8882 suffixes_inserted.next();
8883 continue;
8884 }
8885 Ordering::Greater => break,
8886 Ordering::Equal => {
8887 if selection.end.column == snapshot.line_len(row) {
8888 if selection.is_empty() {
8889 selection.start.column -= suffix_len as u32;
8890 }
8891 selection.end.column -= suffix_len as u32;
8892 }
8893 break;
8894 }
8895 }
8896 }
8897 }
8898
8899 drop(snapshot);
8900 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8901
8902 let selections = this.selections.all::<Point>(cx);
8903 let selections_on_single_row = selections.windows(2).all(|selections| {
8904 selections[0].start.row == selections[1].start.row
8905 && selections[0].end.row == selections[1].end.row
8906 && selections[0].start.row == selections[0].end.row
8907 });
8908 let selections_selecting = selections
8909 .iter()
8910 .any(|selection| selection.start != selection.end);
8911 let advance_downwards = action.advance_downwards
8912 && selections_on_single_row
8913 && !selections_selecting
8914 && !matches!(this.mode, EditorMode::SingleLine { .. });
8915
8916 if advance_downwards {
8917 let snapshot = this.buffer.read(cx).snapshot(cx);
8918
8919 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8920 s.move_cursors_with(|display_snapshot, display_point, _| {
8921 let mut point = display_point.to_point(display_snapshot);
8922 point.row += 1;
8923 point = snapshot.clip_point(point, Bias::Left);
8924 let display_point = point.to_display_point(display_snapshot);
8925 let goal = SelectionGoal::HorizontalPosition(
8926 display_snapshot
8927 .x_for_display_point(display_point, text_layout_details)
8928 .into(),
8929 );
8930 (display_point, goal)
8931 })
8932 });
8933 }
8934 });
8935 }
8936
8937 pub fn select_enclosing_symbol(
8938 &mut self,
8939 _: &SelectEnclosingSymbol,
8940 cx: &mut ViewContext<Self>,
8941 ) {
8942 let buffer = self.buffer.read(cx).snapshot(cx);
8943 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8944
8945 fn update_selection(
8946 selection: &Selection<usize>,
8947 buffer_snap: &MultiBufferSnapshot,
8948 ) -> Option<Selection<usize>> {
8949 let cursor = selection.head();
8950 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8951 for symbol in symbols.iter().rev() {
8952 let start = symbol.range.start.to_offset(buffer_snap);
8953 let end = symbol.range.end.to_offset(buffer_snap);
8954 let new_range = start..end;
8955 if start < selection.start || end > selection.end {
8956 return Some(Selection {
8957 id: selection.id,
8958 start: new_range.start,
8959 end: new_range.end,
8960 goal: SelectionGoal::None,
8961 reversed: selection.reversed,
8962 });
8963 }
8964 }
8965 None
8966 }
8967
8968 let mut selected_larger_symbol = false;
8969 let new_selections = old_selections
8970 .iter()
8971 .map(|selection| match update_selection(selection, &buffer) {
8972 Some(new_selection) => {
8973 if new_selection.range() != selection.range() {
8974 selected_larger_symbol = true;
8975 }
8976 new_selection
8977 }
8978 None => selection.clone(),
8979 })
8980 .collect::<Vec<_>>();
8981
8982 if selected_larger_symbol {
8983 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8984 s.select(new_selections);
8985 });
8986 }
8987 }
8988
8989 pub fn select_larger_syntax_node(
8990 &mut self,
8991 _: &SelectLargerSyntaxNode,
8992 cx: &mut ViewContext<Self>,
8993 ) {
8994 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8995 let buffer = self.buffer.read(cx).snapshot(cx);
8996 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8997
8998 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8999 let mut selected_larger_node = false;
9000 let new_selections = old_selections
9001 .iter()
9002 .map(|selection| {
9003 let old_range = selection.start..selection.end;
9004 let mut new_range = old_range.clone();
9005 while let Some(containing_range) =
9006 buffer.range_for_syntax_ancestor(new_range.clone())
9007 {
9008 new_range = containing_range;
9009 if !display_map.intersects_fold(new_range.start)
9010 && !display_map.intersects_fold(new_range.end)
9011 {
9012 break;
9013 }
9014 }
9015
9016 selected_larger_node |= new_range != old_range;
9017 Selection {
9018 id: selection.id,
9019 start: new_range.start,
9020 end: new_range.end,
9021 goal: SelectionGoal::None,
9022 reversed: selection.reversed,
9023 }
9024 })
9025 .collect::<Vec<_>>();
9026
9027 if selected_larger_node {
9028 stack.push(old_selections);
9029 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9030 s.select(new_selections);
9031 });
9032 }
9033 self.select_larger_syntax_node_stack = stack;
9034 }
9035
9036 pub fn select_smaller_syntax_node(
9037 &mut self,
9038 _: &SelectSmallerSyntaxNode,
9039 cx: &mut ViewContext<Self>,
9040 ) {
9041 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9042 if let Some(selections) = stack.pop() {
9043 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9044 s.select(selections.to_vec());
9045 });
9046 }
9047 self.select_larger_syntax_node_stack = stack;
9048 }
9049
9050 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9051 if !EditorSettings::get_global(cx).gutter.runnables {
9052 self.clear_tasks();
9053 return Task::ready(());
9054 }
9055 let project = self.project.clone();
9056 cx.spawn(|this, mut cx| async move {
9057 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9058 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9059 }) else {
9060 return;
9061 };
9062
9063 let Some(project) = project else {
9064 return;
9065 };
9066
9067 let hide_runnables = project
9068 .update(&mut cx, |project, cx| {
9069 // Do not display any test indicators in non-dev server remote projects.
9070 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9071 })
9072 .unwrap_or(true);
9073 if hide_runnables {
9074 return;
9075 }
9076 let new_rows =
9077 cx.background_executor()
9078 .spawn({
9079 let snapshot = display_snapshot.clone();
9080 async move {
9081 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9082 }
9083 })
9084 .await;
9085 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9086
9087 this.update(&mut cx, |this, _| {
9088 this.clear_tasks();
9089 for (key, value) in rows {
9090 this.insert_tasks(key, value);
9091 }
9092 })
9093 .ok();
9094 })
9095 }
9096 fn fetch_runnable_ranges(
9097 snapshot: &DisplaySnapshot,
9098 range: Range<Anchor>,
9099 ) -> Vec<language::RunnableRange> {
9100 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9101 }
9102
9103 fn runnable_rows(
9104 project: Model<Project>,
9105 snapshot: DisplaySnapshot,
9106 runnable_ranges: Vec<RunnableRange>,
9107 mut cx: AsyncWindowContext,
9108 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9109 runnable_ranges
9110 .into_iter()
9111 .filter_map(|mut runnable| {
9112 let tasks = cx
9113 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9114 .ok()?;
9115 if tasks.is_empty() {
9116 return None;
9117 }
9118
9119 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9120
9121 let row = snapshot
9122 .buffer_snapshot
9123 .buffer_line_for_row(MultiBufferRow(point.row))?
9124 .1
9125 .start
9126 .row;
9127
9128 let context_range =
9129 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9130 Some((
9131 (runnable.buffer_id, row),
9132 RunnableTasks {
9133 templates: tasks,
9134 offset: MultiBufferOffset(runnable.run_range.start),
9135 context_range,
9136 column: point.column,
9137 extra_variables: runnable.extra_captures,
9138 },
9139 ))
9140 })
9141 .collect()
9142 }
9143
9144 fn templates_with_tags(
9145 project: &Model<Project>,
9146 runnable: &mut Runnable,
9147 cx: &WindowContext<'_>,
9148 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9149 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9150 let (worktree_id, file) = project
9151 .buffer_for_id(runnable.buffer, cx)
9152 .and_then(|buffer| buffer.read(cx).file())
9153 .map(|file| (file.worktree_id(cx), file.clone()))
9154 .unzip();
9155
9156 (
9157 project.task_store().read(cx).task_inventory().cloned(),
9158 worktree_id,
9159 file,
9160 )
9161 });
9162
9163 let tags = mem::take(&mut runnable.tags);
9164 let mut tags: Vec<_> = tags
9165 .into_iter()
9166 .flat_map(|tag| {
9167 let tag = tag.0.clone();
9168 inventory
9169 .as_ref()
9170 .into_iter()
9171 .flat_map(|inventory| {
9172 inventory.read(cx).list_tasks(
9173 file.clone(),
9174 Some(runnable.language.clone()),
9175 worktree_id,
9176 cx,
9177 )
9178 })
9179 .filter(move |(_, template)| {
9180 template.tags.iter().any(|source_tag| source_tag == &tag)
9181 })
9182 })
9183 .sorted_by_key(|(kind, _)| kind.to_owned())
9184 .collect();
9185 if let Some((leading_tag_source, _)) = tags.first() {
9186 // Strongest source wins; if we have worktree tag binding, prefer that to
9187 // global and language bindings;
9188 // if we have a global binding, prefer that to language binding.
9189 let first_mismatch = tags
9190 .iter()
9191 .position(|(tag_source, _)| tag_source != leading_tag_source);
9192 if let Some(index) = first_mismatch {
9193 tags.truncate(index);
9194 }
9195 }
9196
9197 tags
9198 }
9199
9200 pub fn move_to_enclosing_bracket(
9201 &mut self,
9202 _: &MoveToEnclosingBracket,
9203 cx: &mut ViewContext<Self>,
9204 ) {
9205 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9206 s.move_offsets_with(|snapshot, selection| {
9207 let Some(enclosing_bracket_ranges) =
9208 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9209 else {
9210 return;
9211 };
9212
9213 let mut best_length = usize::MAX;
9214 let mut best_inside = false;
9215 let mut best_in_bracket_range = false;
9216 let mut best_destination = None;
9217 for (open, close) in enclosing_bracket_ranges {
9218 let close = close.to_inclusive();
9219 let length = close.end() - open.start;
9220 let inside = selection.start >= open.end && selection.end <= *close.start();
9221 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9222 || close.contains(&selection.head());
9223
9224 // If best is next to a bracket and current isn't, skip
9225 if !in_bracket_range && best_in_bracket_range {
9226 continue;
9227 }
9228
9229 // Prefer smaller lengths unless best is inside and current isn't
9230 if length > best_length && (best_inside || !inside) {
9231 continue;
9232 }
9233
9234 best_length = length;
9235 best_inside = inside;
9236 best_in_bracket_range = in_bracket_range;
9237 best_destination = Some(
9238 if close.contains(&selection.start) && close.contains(&selection.end) {
9239 if inside {
9240 open.end
9241 } else {
9242 open.start
9243 }
9244 } else if inside {
9245 *close.start()
9246 } else {
9247 *close.end()
9248 },
9249 );
9250 }
9251
9252 if let Some(destination) = best_destination {
9253 selection.collapse_to(destination, SelectionGoal::None);
9254 }
9255 })
9256 });
9257 }
9258
9259 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9260 self.end_selection(cx);
9261 self.selection_history.mode = SelectionHistoryMode::Undoing;
9262 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9263 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9264 self.select_next_state = entry.select_next_state;
9265 self.select_prev_state = entry.select_prev_state;
9266 self.add_selections_state = entry.add_selections_state;
9267 self.request_autoscroll(Autoscroll::newest(), cx);
9268 }
9269 self.selection_history.mode = SelectionHistoryMode::Normal;
9270 }
9271
9272 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9273 self.end_selection(cx);
9274 self.selection_history.mode = SelectionHistoryMode::Redoing;
9275 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9276 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9277 self.select_next_state = entry.select_next_state;
9278 self.select_prev_state = entry.select_prev_state;
9279 self.add_selections_state = entry.add_selections_state;
9280 self.request_autoscroll(Autoscroll::newest(), cx);
9281 }
9282 self.selection_history.mode = SelectionHistoryMode::Normal;
9283 }
9284
9285 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9286 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9287 }
9288
9289 pub fn expand_excerpts_down(
9290 &mut self,
9291 action: &ExpandExcerptsDown,
9292 cx: &mut ViewContext<Self>,
9293 ) {
9294 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9295 }
9296
9297 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9298 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9299 }
9300
9301 pub fn expand_excerpts_for_direction(
9302 &mut self,
9303 lines: u32,
9304 direction: ExpandExcerptDirection,
9305 cx: &mut ViewContext<Self>,
9306 ) {
9307 let selections = self.selections.disjoint_anchors();
9308
9309 let lines = if lines == 0 {
9310 EditorSettings::get_global(cx).expand_excerpt_lines
9311 } else {
9312 lines
9313 };
9314
9315 self.buffer.update(cx, |buffer, cx| {
9316 buffer.expand_excerpts(
9317 selections
9318 .iter()
9319 .map(|selection| selection.head().excerpt_id)
9320 .dedup(),
9321 lines,
9322 direction,
9323 cx,
9324 )
9325 })
9326 }
9327
9328 pub fn expand_excerpt(
9329 &mut self,
9330 excerpt: ExcerptId,
9331 direction: ExpandExcerptDirection,
9332 cx: &mut ViewContext<Self>,
9333 ) {
9334 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9335 self.buffer.update(cx, |buffer, cx| {
9336 buffer.expand_excerpts([excerpt], lines, direction, cx)
9337 })
9338 }
9339
9340 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9341 self.go_to_diagnostic_impl(Direction::Next, cx)
9342 }
9343
9344 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9345 self.go_to_diagnostic_impl(Direction::Prev, cx)
9346 }
9347
9348 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9349 let buffer = self.buffer.read(cx).snapshot(cx);
9350 let selection = self.selections.newest::<usize>(cx);
9351
9352 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9353 if direction == Direction::Next {
9354 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9355 let (group_id, jump_to) = popover.activation_info();
9356 if self.activate_diagnostics(group_id, cx) {
9357 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9358 let mut new_selection = s.newest_anchor().clone();
9359 new_selection.collapse_to(jump_to, SelectionGoal::None);
9360 s.select_anchors(vec![new_selection.clone()]);
9361 });
9362 }
9363 return;
9364 }
9365 }
9366
9367 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9368 active_diagnostics
9369 .primary_range
9370 .to_offset(&buffer)
9371 .to_inclusive()
9372 });
9373 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9374 if active_primary_range.contains(&selection.head()) {
9375 *active_primary_range.start()
9376 } else {
9377 selection.head()
9378 }
9379 } else {
9380 selection.head()
9381 };
9382 let snapshot = self.snapshot(cx);
9383 loop {
9384 let diagnostics = if direction == Direction::Prev {
9385 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9386 } else {
9387 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9388 }
9389 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9390 let group = diagnostics
9391 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9392 // be sorted in a stable way
9393 // skip until we are at current active diagnostic, if it exists
9394 .skip_while(|entry| {
9395 (match direction {
9396 Direction::Prev => entry.range.start >= search_start,
9397 Direction::Next => entry.range.start <= search_start,
9398 }) && self
9399 .active_diagnostics
9400 .as_ref()
9401 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9402 })
9403 .find_map(|entry| {
9404 if entry.diagnostic.is_primary
9405 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9406 && !entry.range.is_empty()
9407 // if we match with the active diagnostic, skip it
9408 && Some(entry.diagnostic.group_id)
9409 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9410 {
9411 Some((entry.range, entry.diagnostic.group_id))
9412 } else {
9413 None
9414 }
9415 });
9416
9417 if let Some((primary_range, group_id)) = group {
9418 if self.activate_diagnostics(group_id, cx) {
9419 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9420 s.select(vec![Selection {
9421 id: selection.id,
9422 start: primary_range.start,
9423 end: primary_range.start,
9424 reversed: false,
9425 goal: SelectionGoal::None,
9426 }]);
9427 });
9428 }
9429 break;
9430 } else {
9431 // Cycle around to the start of the buffer, potentially moving back to the start of
9432 // the currently active diagnostic.
9433 active_primary_range.take();
9434 if direction == Direction::Prev {
9435 if search_start == buffer.len() {
9436 break;
9437 } else {
9438 search_start = buffer.len();
9439 }
9440 } else if search_start == 0 {
9441 break;
9442 } else {
9443 search_start = 0;
9444 }
9445 }
9446 }
9447 }
9448
9449 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9450 let snapshot = self
9451 .display_map
9452 .update(cx, |display_map, cx| display_map.snapshot(cx));
9453 let selection = self.selections.newest::<Point>(cx);
9454 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9455 }
9456
9457 fn go_to_hunk_after_position(
9458 &mut self,
9459 snapshot: &DisplaySnapshot,
9460 position: Point,
9461 cx: &mut ViewContext<'_, Editor>,
9462 ) -> Option<MultiBufferDiffHunk> {
9463 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9464 snapshot,
9465 position,
9466 false,
9467 snapshot
9468 .buffer_snapshot
9469 .git_diff_hunks_in_range(MultiBufferRow(position.row + 1)..MultiBufferRow::MAX),
9470 cx,
9471 ) {
9472 return Some(hunk);
9473 }
9474
9475 let wrapped_point = Point::zero();
9476 self.go_to_next_hunk_in_direction(
9477 snapshot,
9478 wrapped_point,
9479 true,
9480 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9481 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9482 ),
9483 cx,
9484 )
9485 }
9486
9487 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9488 let snapshot = self
9489 .display_map
9490 .update(cx, |display_map, cx| display_map.snapshot(cx));
9491 let selection = self.selections.newest::<Point>(cx);
9492
9493 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9494 }
9495
9496 fn go_to_hunk_before_position(
9497 &mut self,
9498 snapshot: &DisplaySnapshot,
9499 position: Point,
9500 cx: &mut ViewContext<'_, Editor>,
9501 ) -> Option<MultiBufferDiffHunk> {
9502 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9503 snapshot,
9504 position,
9505 false,
9506 snapshot
9507 .buffer_snapshot
9508 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(position.row)),
9509 cx,
9510 ) {
9511 return Some(hunk);
9512 }
9513
9514 let wrapped_point = snapshot.buffer_snapshot.max_point();
9515 self.go_to_next_hunk_in_direction(
9516 snapshot,
9517 wrapped_point,
9518 true,
9519 snapshot
9520 .buffer_snapshot
9521 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(wrapped_point.row)),
9522 cx,
9523 )
9524 }
9525
9526 fn go_to_next_hunk_in_direction(
9527 &mut self,
9528 snapshot: &DisplaySnapshot,
9529 initial_point: Point,
9530 is_wrapped: bool,
9531 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9532 cx: &mut ViewContext<Editor>,
9533 ) -> Option<MultiBufferDiffHunk> {
9534 let display_point = initial_point.to_display_point(snapshot);
9535 let mut hunks = hunks
9536 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9537 .filter(|(display_hunk, _)| {
9538 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9539 })
9540 .dedup();
9541
9542 if let Some((display_hunk, hunk)) = hunks.next() {
9543 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9544 let row = display_hunk.start_display_row();
9545 let point = DisplayPoint::new(row, 0);
9546 s.select_display_ranges([point..point]);
9547 });
9548
9549 Some(hunk)
9550 } else {
9551 None
9552 }
9553 }
9554
9555 pub fn go_to_definition(
9556 &mut self,
9557 _: &GoToDefinition,
9558 cx: &mut ViewContext<Self>,
9559 ) -> Task<Result<Navigated>> {
9560 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9561 cx.spawn(|editor, mut cx| async move {
9562 if definition.await? == Navigated::Yes {
9563 return Ok(Navigated::Yes);
9564 }
9565 match editor.update(&mut cx, |editor, cx| {
9566 editor.find_all_references(&FindAllReferences, cx)
9567 })? {
9568 Some(references) => references.await,
9569 None => Ok(Navigated::No),
9570 }
9571 })
9572 }
9573
9574 pub fn go_to_declaration(
9575 &mut self,
9576 _: &GoToDeclaration,
9577 cx: &mut ViewContext<Self>,
9578 ) -> Task<Result<Navigated>> {
9579 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9580 }
9581
9582 pub fn go_to_declaration_split(
9583 &mut self,
9584 _: &GoToDeclaration,
9585 cx: &mut ViewContext<Self>,
9586 ) -> Task<Result<Navigated>> {
9587 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9588 }
9589
9590 pub fn go_to_implementation(
9591 &mut self,
9592 _: &GoToImplementation,
9593 cx: &mut ViewContext<Self>,
9594 ) -> Task<Result<Navigated>> {
9595 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9596 }
9597
9598 pub fn go_to_implementation_split(
9599 &mut self,
9600 _: &GoToImplementationSplit,
9601 cx: &mut ViewContext<Self>,
9602 ) -> Task<Result<Navigated>> {
9603 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9604 }
9605
9606 pub fn go_to_type_definition(
9607 &mut self,
9608 _: &GoToTypeDefinition,
9609 cx: &mut ViewContext<Self>,
9610 ) -> Task<Result<Navigated>> {
9611 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9612 }
9613
9614 pub fn go_to_definition_split(
9615 &mut self,
9616 _: &GoToDefinitionSplit,
9617 cx: &mut ViewContext<Self>,
9618 ) -> Task<Result<Navigated>> {
9619 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9620 }
9621
9622 pub fn go_to_type_definition_split(
9623 &mut self,
9624 _: &GoToTypeDefinitionSplit,
9625 cx: &mut ViewContext<Self>,
9626 ) -> Task<Result<Navigated>> {
9627 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9628 }
9629
9630 fn go_to_definition_of_kind(
9631 &mut self,
9632 kind: GotoDefinitionKind,
9633 split: bool,
9634 cx: &mut ViewContext<Self>,
9635 ) -> Task<Result<Navigated>> {
9636 let Some(provider) = self.semantics_provider.clone() else {
9637 return Task::ready(Ok(Navigated::No));
9638 };
9639 let buffer = self.buffer.read(cx);
9640 let head = self.selections.newest::<usize>(cx).head();
9641 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9642 text_anchor
9643 } else {
9644 return Task::ready(Ok(Navigated::No));
9645 };
9646
9647 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9648 return Task::ready(Ok(Navigated::No));
9649 };
9650
9651 cx.spawn(|editor, mut cx| async move {
9652 let definitions = definitions.await?;
9653 let navigated = editor
9654 .update(&mut cx, |editor, cx| {
9655 editor.navigate_to_hover_links(
9656 Some(kind),
9657 definitions
9658 .into_iter()
9659 .filter(|location| {
9660 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9661 })
9662 .map(HoverLink::Text)
9663 .collect::<Vec<_>>(),
9664 split,
9665 cx,
9666 )
9667 })?
9668 .await?;
9669 anyhow::Ok(navigated)
9670 })
9671 }
9672
9673 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9674 let position = self.selections.newest_anchor().head();
9675 let Some((buffer, buffer_position)) =
9676 self.buffer.read(cx).text_anchor_for_position(position, cx)
9677 else {
9678 return;
9679 };
9680
9681 cx.spawn(|editor, mut cx| async move {
9682 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9683 editor.update(&mut cx, |_, cx| {
9684 cx.open_url(&url);
9685 })
9686 } else {
9687 Ok(())
9688 }
9689 })
9690 .detach();
9691 }
9692
9693 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9694 let Some(workspace) = self.workspace() else {
9695 return;
9696 };
9697
9698 let position = self.selections.newest_anchor().head();
9699
9700 let Some((buffer, buffer_position)) =
9701 self.buffer.read(cx).text_anchor_for_position(position, cx)
9702 else {
9703 return;
9704 };
9705
9706 let project = self.project.clone();
9707
9708 cx.spawn(|_, mut cx| async move {
9709 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9710
9711 if let Some((_, path)) = result {
9712 workspace
9713 .update(&mut cx, |workspace, cx| {
9714 workspace.open_resolved_path(path, cx)
9715 })?
9716 .await?;
9717 }
9718 anyhow::Ok(())
9719 })
9720 .detach();
9721 }
9722
9723 pub(crate) fn navigate_to_hover_links(
9724 &mut self,
9725 kind: Option<GotoDefinitionKind>,
9726 mut definitions: Vec<HoverLink>,
9727 split: bool,
9728 cx: &mut ViewContext<Editor>,
9729 ) -> Task<Result<Navigated>> {
9730 // If there is one definition, just open it directly
9731 if definitions.len() == 1 {
9732 let definition = definitions.pop().unwrap();
9733
9734 enum TargetTaskResult {
9735 Location(Option<Location>),
9736 AlreadyNavigated,
9737 }
9738
9739 let target_task = match definition {
9740 HoverLink::Text(link) => {
9741 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9742 }
9743 HoverLink::InlayHint(lsp_location, server_id) => {
9744 let computation = self.compute_target_location(lsp_location, server_id, cx);
9745 cx.background_executor().spawn(async move {
9746 let location = computation.await?;
9747 Ok(TargetTaskResult::Location(location))
9748 })
9749 }
9750 HoverLink::Url(url) => {
9751 cx.open_url(&url);
9752 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9753 }
9754 HoverLink::File(path) => {
9755 if let Some(workspace) = self.workspace() {
9756 cx.spawn(|_, mut cx| async move {
9757 workspace
9758 .update(&mut cx, |workspace, cx| {
9759 workspace.open_resolved_path(path, cx)
9760 })?
9761 .await
9762 .map(|_| TargetTaskResult::AlreadyNavigated)
9763 })
9764 } else {
9765 Task::ready(Ok(TargetTaskResult::Location(None)))
9766 }
9767 }
9768 };
9769 cx.spawn(|editor, mut cx| async move {
9770 let target = match target_task.await.context("target resolution task")? {
9771 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9772 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9773 TargetTaskResult::Location(Some(target)) => target,
9774 };
9775
9776 editor.update(&mut cx, |editor, cx| {
9777 let Some(workspace) = editor.workspace() else {
9778 return Navigated::No;
9779 };
9780 let pane = workspace.read(cx).active_pane().clone();
9781
9782 let range = target.range.to_offset(target.buffer.read(cx));
9783 let range = editor.range_for_match(&range);
9784
9785 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9786 let buffer = target.buffer.read(cx);
9787 let range = check_multiline_range(buffer, range);
9788 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9789 s.select_ranges([range]);
9790 });
9791 } else {
9792 cx.window_context().defer(move |cx| {
9793 let target_editor: View<Self> =
9794 workspace.update(cx, |workspace, cx| {
9795 let pane = if split {
9796 workspace.adjacent_pane(cx)
9797 } else {
9798 workspace.active_pane().clone()
9799 };
9800
9801 workspace.open_project_item(
9802 pane,
9803 target.buffer.clone(),
9804 true,
9805 true,
9806 cx,
9807 )
9808 });
9809 target_editor.update(cx, |target_editor, cx| {
9810 // When selecting a definition in a different buffer, disable the nav history
9811 // to avoid creating a history entry at the previous cursor location.
9812 pane.update(cx, |pane, _| pane.disable_history());
9813 let buffer = target.buffer.read(cx);
9814 let range = check_multiline_range(buffer, range);
9815 target_editor.change_selections(
9816 Some(Autoscroll::focused()),
9817 cx,
9818 |s| {
9819 s.select_ranges([range]);
9820 },
9821 );
9822 pane.update(cx, |pane, _| pane.enable_history());
9823 });
9824 });
9825 }
9826 Navigated::Yes
9827 })
9828 })
9829 } else if !definitions.is_empty() {
9830 cx.spawn(|editor, mut cx| async move {
9831 let (title, location_tasks, workspace) = editor
9832 .update(&mut cx, |editor, cx| {
9833 let tab_kind = match kind {
9834 Some(GotoDefinitionKind::Implementation) => "Implementations",
9835 _ => "Definitions",
9836 };
9837 let title = definitions
9838 .iter()
9839 .find_map(|definition| match definition {
9840 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9841 let buffer = origin.buffer.read(cx);
9842 format!(
9843 "{} for {}",
9844 tab_kind,
9845 buffer
9846 .text_for_range(origin.range.clone())
9847 .collect::<String>()
9848 )
9849 }),
9850 HoverLink::InlayHint(_, _) => None,
9851 HoverLink::Url(_) => None,
9852 HoverLink::File(_) => None,
9853 })
9854 .unwrap_or(tab_kind.to_string());
9855 let location_tasks = definitions
9856 .into_iter()
9857 .map(|definition| match definition {
9858 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9859 HoverLink::InlayHint(lsp_location, server_id) => {
9860 editor.compute_target_location(lsp_location, server_id, cx)
9861 }
9862 HoverLink::Url(_) => Task::ready(Ok(None)),
9863 HoverLink::File(_) => Task::ready(Ok(None)),
9864 })
9865 .collect::<Vec<_>>();
9866 (title, location_tasks, editor.workspace().clone())
9867 })
9868 .context("location tasks preparation")?;
9869
9870 let locations = future::join_all(location_tasks)
9871 .await
9872 .into_iter()
9873 .filter_map(|location| location.transpose())
9874 .collect::<Result<_>>()
9875 .context("location tasks")?;
9876
9877 let Some(workspace) = workspace else {
9878 return Ok(Navigated::No);
9879 };
9880 let opened = workspace
9881 .update(&mut cx, |workspace, cx| {
9882 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9883 })
9884 .ok();
9885
9886 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9887 })
9888 } else {
9889 Task::ready(Ok(Navigated::No))
9890 }
9891 }
9892
9893 fn compute_target_location(
9894 &self,
9895 lsp_location: lsp::Location,
9896 server_id: LanguageServerId,
9897 cx: &mut ViewContext<Self>,
9898 ) -> Task<anyhow::Result<Option<Location>>> {
9899 let Some(project) = self.project.clone() else {
9900 return Task::Ready(Some(Ok(None)));
9901 };
9902
9903 cx.spawn(move |editor, mut cx| async move {
9904 let location_task = editor.update(&mut cx, |_, cx| {
9905 project.update(cx, |project, cx| {
9906 let language_server_name = project
9907 .language_server_statuses(cx)
9908 .find(|(id, _)| server_id == *id)
9909 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9910 language_server_name.map(|language_server_name| {
9911 project.open_local_buffer_via_lsp(
9912 lsp_location.uri.clone(),
9913 server_id,
9914 language_server_name,
9915 cx,
9916 )
9917 })
9918 })
9919 })?;
9920 let location = match location_task {
9921 Some(task) => Some({
9922 let target_buffer_handle = task.await.context("open local buffer")?;
9923 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9924 let target_start = target_buffer
9925 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9926 let target_end = target_buffer
9927 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9928 target_buffer.anchor_after(target_start)
9929 ..target_buffer.anchor_before(target_end)
9930 })?;
9931 Location {
9932 buffer: target_buffer_handle,
9933 range,
9934 }
9935 }),
9936 None => None,
9937 };
9938 Ok(location)
9939 })
9940 }
9941
9942 pub fn find_all_references(
9943 &mut self,
9944 _: &FindAllReferences,
9945 cx: &mut ViewContext<Self>,
9946 ) -> Option<Task<Result<Navigated>>> {
9947 let multi_buffer = self.buffer.read(cx);
9948 let selection = self.selections.newest::<usize>(cx);
9949 let head = selection.head();
9950
9951 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9952 let head_anchor = multi_buffer_snapshot.anchor_at(
9953 head,
9954 if head < selection.tail() {
9955 Bias::Right
9956 } else {
9957 Bias::Left
9958 },
9959 );
9960
9961 match self
9962 .find_all_references_task_sources
9963 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9964 {
9965 Ok(_) => {
9966 log::info!(
9967 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9968 );
9969 return None;
9970 }
9971 Err(i) => {
9972 self.find_all_references_task_sources.insert(i, head_anchor);
9973 }
9974 }
9975
9976 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9977 let workspace = self.workspace()?;
9978 let project = workspace.read(cx).project().clone();
9979 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9980 Some(cx.spawn(|editor, mut cx| async move {
9981 let _cleanup = defer({
9982 let mut cx = cx.clone();
9983 move || {
9984 let _ = editor.update(&mut cx, |editor, _| {
9985 if let Ok(i) =
9986 editor
9987 .find_all_references_task_sources
9988 .binary_search_by(|anchor| {
9989 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9990 })
9991 {
9992 editor.find_all_references_task_sources.remove(i);
9993 }
9994 });
9995 }
9996 });
9997
9998 let locations = references.await?;
9999 if locations.is_empty() {
10000 return anyhow::Ok(Navigated::No);
10001 }
10002
10003 workspace.update(&mut cx, |workspace, cx| {
10004 let title = locations
10005 .first()
10006 .as_ref()
10007 .map(|location| {
10008 let buffer = location.buffer.read(cx);
10009 format!(
10010 "References to `{}`",
10011 buffer
10012 .text_for_range(location.range.clone())
10013 .collect::<String>()
10014 )
10015 })
10016 .unwrap();
10017 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
10018 Navigated::Yes
10019 })
10020 }))
10021 }
10022
10023 /// Opens a multibuffer with the given project locations in it
10024 pub fn open_locations_in_multibuffer(
10025 workspace: &mut Workspace,
10026 mut locations: Vec<Location>,
10027 title: String,
10028 split: bool,
10029 cx: &mut ViewContext<Workspace>,
10030 ) {
10031 // If there are multiple definitions, open them in a multibuffer
10032 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10033 let mut locations = locations.into_iter().peekable();
10034 let mut ranges_to_highlight = Vec::new();
10035 let capability = workspace.project().read(cx).capability();
10036
10037 let excerpt_buffer = cx.new_model(|cx| {
10038 let mut multibuffer = MultiBuffer::new(capability);
10039 while let Some(location) = locations.next() {
10040 let buffer = location.buffer.read(cx);
10041 let mut ranges_for_buffer = Vec::new();
10042 let range = location.range.to_offset(buffer);
10043 ranges_for_buffer.push(range.clone());
10044
10045 while let Some(next_location) = locations.peek() {
10046 if next_location.buffer == location.buffer {
10047 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10048 locations.next();
10049 } else {
10050 break;
10051 }
10052 }
10053
10054 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10055 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10056 location.buffer.clone(),
10057 ranges_for_buffer,
10058 DEFAULT_MULTIBUFFER_CONTEXT,
10059 cx,
10060 ))
10061 }
10062
10063 multibuffer.with_title(title)
10064 });
10065
10066 let editor = cx.new_view(|cx| {
10067 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10068 });
10069 editor.update(cx, |editor, cx| {
10070 if let Some(first_range) = ranges_to_highlight.first() {
10071 editor.change_selections(None, cx, |selections| {
10072 selections.clear_disjoint();
10073 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10074 });
10075 }
10076 editor.highlight_background::<Self>(
10077 &ranges_to_highlight,
10078 |theme| theme.editor_highlighted_line_background,
10079 cx,
10080 );
10081 });
10082
10083 let item = Box::new(editor);
10084 let item_id = item.item_id();
10085
10086 if split {
10087 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10088 } else {
10089 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10090 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10091 pane.close_current_preview_item(cx)
10092 } else {
10093 None
10094 }
10095 });
10096 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10097 }
10098 workspace.active_pane().update(cx, |pane, cx| {
10099 pane.set_preview_item_id(Some(item_id), cx);
10100 });
10101 }
10102
10103 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10104 use language::ToOffset as _;
10105
10106 let provider = self.semantics_provider.clone()?;
10107 let selection = self.selections.newest_anchor().clone();
10108 let (cursor_buffer, cursor_buffer_position) = self
10109 .buffer
10110 .read(cx)
10111 .text_anchor_for_position(selection.head(), cx)?;
10112 let (tail_buffer, cursor_buffer_position_end) = self
10113 .buffer
10114 .read(cx)
10115 .text_anchor_for_position(selection.tail(), cx)?;
10116 if tail_buffer != cursor_buffer {
10117 return None;
10118 }
10119
10120 let snapshot = cursor_buffer.read(cx).snapshot();
10121 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10122 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10123 let prepare_rename = provider
10124 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10125 .unwrap_or_else(|| Task::ready(Ok(None)));
10126 drop(snapshot);
10127
10128 Some(cx.spawn(|this, mut cx| async move {
10129 let rename_range = if let Some(range) = prepare_rename.await? {
10130 Some(range)
10131 } else {
10132 this.update(&mut cx, |this, cx| {
10133 let buffer = this.buffer.read(cx).snapshot(cx);
10134 let mut buffer_highlights = this
10135 .document_highlights_for_position(selection.head(), &buffer)
10136 .filter(|highlight| {
10137 highlight.start.excerpt_id == selection.head().excerpt_id
10138 && highlight.end.excerpt_id == selection.head().excerpt_id
10139 });
10140 buffer_highlights
10141 .next()
10142 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10143 })?
10144 };
10145 if let Some(rename_range) = rename_range {
10146 this.update(&mut cx, |this, cx| {
10147 let snapshot = cursor_buffer.read(cx).snapshot();
10148 let rename_buffer_range = rename_range.to_offset(&snapshot);
10149 let cursor_offset_in_rename_range =
10150 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10151 let cursor_offset_in_rename_range_end =
10152 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10153
10154 this.take_rename(false, cx);
10155 let buffer = this.buffer.read(cx).read(cx);
10156 let cursor_offset = selection.head().to_offset(&buffer);
10157 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10158 let rename_end = rename_start + rename_buffer_range.len();
10159 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10160 let mut old_highlight_id = None;
10161 let old_name: Arc<str> = buffer
10162 .chunks(rename_start..rename_end, true)
10163 .map(|chunk| {
10164 if old_highlight_id.is_none() {
10165 old_highlight_id = chunk.syntax_highlight_id;
10166 }
10167 chunk.text
10168 })
10169 .collect::<String>()
10170 .into();
10171
10172 drop(buffer);
10173
10174 // Position the selection in the rename editor so that it matches the current selection.
10175 this.show_local_selections = false;
10176 let rename_editor = cx.new_view(|cx| {
10177 let mut editor = Editor::single_line(cx);
10178 editor.buffer.update(cx, |buffer, cx| {
10179 buffer.edit([(0..0, old_name.clone())], None, cx)
10180 });
10181 let rename_selection_range = match cursor_offset_in_rename_range
10182 .cmp(&cursor_offset_in_rename_range_end)
10183 {
10184 Ordering::Equal => {
10185 editor.select_all(&SelectAll, cx);
10186 return editor;
10187 }
10188 Ordering::Less => {
10189 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10190 }
10191 Ordering::Greater => {
10192 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10193 }
10194 };
10195 if rename_selection_range.end > old_name.len() {
10196 editor.select_all(&SelectAll, cx);
10197 } else {
10198 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10199 s.select_ranges([rename_selection_range]);
10200 });
10201 }
10202 editor
10203 });
10204 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10205 if e == &EditorEvent::Focused {
10206 cx.emit(EditorEvent::FocusedIn)
10207 }
10208 })
10209 .detach();
10210
10211 let write_highlights =
10212 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10213 let read_highlights =
10214 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10215 let ranges = write_highlights
10216 .iter()
10217 .flat_map(|(_, ranges)| ranges.iter())
10218 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10219 .cloned()
10220 .collect();
10221
10222 this.highlight_text::<Rename>(
10223 ranges,
10224 HighlightStyle {
10225 fade_out: Some(0.6),
10226 ..Default::default()
10227 },
10228 cx,
10229 );
10230 let rename_focus_handle = rename_editor.focus_handle(cx);
10231 cx.focus(&rename_focus_handle);
10232 let block_id = this.insert_blocks(
10233 [BlockProperties {
10234 style: BlockStyle::Flex,
10235 position: range.start,
10236 height: 1,
10237 render: Box::new({
10238 let rename_editor = rename_editor.clone();
10239 move |cx: &mut BlockContext| {
10240 let mut text_style = cx.editor_style.text.clone();
10241 if let Some(highlight_style) = old_highlight_id
10242 .and_then(|h| h.style(&cx.editor_style.syntax))
10243 {
10244 text_style = text_style.highlight(highlight_style);
10245 }
10246 div()
10247 .pl(cx.anchor_x)
10248 .child(EditorElement::new(
10249 &rename_editor,
10250 EditorStyle {
10251 background: cx.theme().system().transparent,
10252 local_player: cx.editor_style.local_player,
10253 text: text_style,
10254 scrollbar_width: cx.editor_style.scrollbar_width,
10255 syntax: cx.editor_style.syntax.clone(),
10256 status: cx.editor_style.status.clone(),
10257 inlay_hints_style: HighlightStyle {
10258 font_weight: Some(FontWeight::BOLD),
10259 ..make_inlay_hints_style(cx)
10260 },
10261 suggestions_style: HighlightStyle {
10262 color: Some(cx.theme().status().predictive),
10263 ..HighlightStyle::default()
10264 },
10265 ..EditorStyle::default()
10266 },
10267 ))
10268 .into_any_element()
10269 }
10270 }),
10271 disposition: BlockDisposition::Below,
10272 priority: 0,
10273 }],
10274 Some(Autoscroll::fit()),
10275 cx,
10276 )[0];
10277 this.pending_rename = Some(RenameState {
10278 range,
10279 old_name,
10280 editor: rename_editor,
10281 block_id,
10282 });
10283 })?;
10284 }
10285
10286 Ok(())
10287 }))
10288 }
10289
10290 pub fn confirm_rename(
10291 &mut self,
10292 _: &ConfirmRename,
10293 cx: &mut ViewContext<Self>,
10294 ) -> Option<Task<Result<()>>> {
10295 let rename = self.take_rename(false, cx)?;
10296 let workspace = self.workspace()?.downgrade();
10297 let (buffer, start) = self
10298 .buffer
10299 .read(cx)
10300 .text_anchor_for_position(rename.range.start, cx)?;
10301 let (end_buffer, _) = self
10302 .buffer
10303 .read(cx)
10304 .text_anchor_for_position(rename.range.end, cx)?;
10305 if buffer != end_buffer {
10306 return None;
10307 }
10308
10309 let old_name = rename.old_name;
10310 let new_name = rename.editor.read(cx).text(cx);
10311
10312 let rename = self.semantics_provider.as_ref()?.perform_rename(
10313 &buffer,
10314 start,
10315 new_name.clone(),
10316 cx,
10317 )?;
10318
10319 Some(cx.spawn(|editor, mut cx| async move {
10320 let project_transaction = rename.await?;
10321 Self::open_project_transaction(
10322 &editor,
10323 workspace,
10324 project_transaction,
10325 format!("Rename: {} → {}", old_name, new_name),
10326 cx.clone(),
10327 )
10328 .await?;
10329
10330 editor.update(&mut cx, |editor, cx| {
10331 editor.refresh_document_highlights(cx);
10332 })?;
10333 Ok(())
10334 }))
10335 }
10336
10337 fn take_rename(
10338 &mut self,
10339 moving_cursor: bool,
10340 cx: &mut ViewContext<Self>,
10341 ) -> Option<RenameState> {
10342 let rename = self.pending_rename.take()?;
10343 if rename.editor.focus_handle(cx).is_focused(cx) {
10344 cx.focus(&self.focus_handle);
10345 }
10346
10347 self.remove_blocks(
10348 [rename.block_id].into_iter().collect(),
10349 Some(Autoscroll::fit()),
10350 cx,
10351 );
10352 self.clear_highlights::<Rename>(cx);
10353 self.show_local_selections = true;
10354
10355 if moving_cursor {
10356 let rename_editor = rename.editor.read(cx);
10357 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
10358
10359 // Update the selection to match the position of the selection inside
10360 // the rename editor.
10361 let snapshot = self.buffer.read(cx).read(cx);
10362 let rename_range = rename.range.to_offset(&snapshot);
10363 let cursor_in_editor = snapshot
10364 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10365 .min(rename_range.end);
10366 drop(snapshot);
10367
10368 self.change_selections(None, cx, |s| {
10369 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10370 });
10371 } else {
10372 self.refresh_document_highlights(cx);
10373 }
10374
10375 Some(rename)
10376 }
10377
10378 pub fn pending_rename(&self) -> Option<&RenameState> {
10379 self.pending_rename.as_ref()
10380 }
10381
10382 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10383 let project = match &self.project {
10384 Some(project) => project.clone(),
10385 None => return None,
10386 };
10387
10388 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10389 }
10390
10391 fn format_selections(
10392 &mut self,
10393 _: &FormatSelections,
10394 cx: &mut ViewContext<Self>,
10395 ) -> Option<Task<Result<()>>> {
10396 let project = match &self.project {
10397 Some(project) => project.clone(),
10398 None => return None,
10399 };
10400
10401 let selections = self
10402 .selections
10403 .all_adjusted(cx)
10404 .into_iter()
10405 .filter(|s| !s.is_empty())
10406 .collect_vec();
10407
10408 Some(self.perform_format(
10409 project,
10410 FormatTrigger::Manual,
10411 FormatTarget::Ranges(selections),
10412 cx,
10413 ))
10414 }
10415
10416 fn perform_format(
10417 &mut self,
10418 project: Model<Project>,
10419 trigger: FormatTrigger,
10420 target: FormatTarget,
10421 cx: &mut ViewContext<Self>,
10422 ) -> Task<Result<()>> {
10423 let buffer = self.buffer().clone();
10424 let mut buffers = buffer.read(cx).all_buffers();
10425 if trigger == FormatTrigger::Save {
10426 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10427 }
10428
10429 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10430 let format = project.update(cx, |project, cx| {
10431 project.format(buffers, true, trigger, target, cx)
10432 });
10433
10434 cx.spawn(|_, mut cx| async move {
10435 let transaction = futures::select_biased! {
10436 () = timeout => {
10437 log::warn!("timed out waiting for formatting");
10438 None
10439 }
10440 transaction = format.log_err().fuse() => transaction,
10441 };
10442
10443 buffer
10444 .update(&mut cx, |buffer, cx| {
10445 if let Some(transaction) = transaction {
10446 if !buffer.is_singleton() {
10447 buffer.push_transaction(&transaction.0, cx);
10448 }
10449 }
10450
10451 cx.notify();
10452 })
10453 .ok();
10454
10455 Ok(())
10456 })
10457 }
10458
10459 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10460 if let Some(project) = self.project.clone() {
10461 self.buffer.update(cx, |multi_buffer, cx| {
10462 project.update(cx, |project, cx| {
10463 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10464 });
10465 })
10466 }
10467 }
10468
10469 fn cancel_language_server_work(
10470 &mut self,
10471 _: &CancelLanguageServerWork,
10472 cx: &mut ViewContext<Self>,
10473 ) {
10474 if let Some(project) = self.project.clone() {
10475 self.buffer.update(cx, |multi_buffer, cx| {
10476 project.update(cx, |project, cx| {
10477 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10478 });
10479 })
10480 }
10481 }
10482
10483 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10484 cx.show_character_palette();
10485 }
10486
10487 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10488 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10489 let buffer = self.buffer.read(cx).snapshot(cx);
10490 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10491 let is_valid = buffer
10492 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10493 .any(|entry| {
10494 entry.diagnostic.is_primary
10495 && !entry.range.is_empty()
10496 && entry.range.start == primary_range_start
10497 && entry.diagnostic.message == active_diagnostics.primary_message
10498 });
10499
10500 if is_valid != active_diagnostics.is_valid {
10501 active_diagnostics.is_valid = is_valid;
10502 let mut new_styles = HashMap::default();
10503 for (block_id, diagnostic) in &active_diagnostics.blocks {
10504 new_styles.insert(
10505 *block_id,
10506 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10507 );
10508 }
10509 self.display_map.update(cx, |display_map, _cx| {
10510 display_map.replace_blocks(new_styles)
10511 });
10512 }
10513 }
10514 }
10515
10516 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10517 self.dismiss_diagnostics(cx);
10518 let snapshot = self.snapshot(cx);
10519 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10520 let buffer = self.buffer.read(cx).snapshot(cx);
10521
10522 let mut primary_range = None;
10523 let mut primary_message = None;
10524 let mut group_end = Point::zero();
10525 let diagnostic_group = buffer
10526 .diagnostic_group::<MultiBufferPoint>(group_id)
10527 .filter_map(|entry| {
10528 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10529 && (entry.range.start.row == entry.range.end.row
10530 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10531 {
10532 return None;
10533 }
10534 if entry.range.end > group_end {
10535 group_end = entry.range.end;
10536 }
10537 if entry.diagnostic.is_primary {
10538 primary_range = Some(entry.range.clone());
10539 primary_message = Some(entry.diagnostic.message.clone());
10540 }
10541 Some(entry)
10542 })
10543 .collect::<Vec<_>>();
10544 let primary_range = primary_range?;
10545 let primary_message = primary_message?;
10546 let primary_range =
10547 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10548
10549 let blocks = display_map
10550 .insert_blocks(
10551 diagnostic_group.iter().map(|entry| {
10552 let diagnostic = entry.diagnostic.clone();
10553 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10554 BlockProperties {
10555 style: BlockStyle::Fixed,
10556 position: buffer.anchor_after(entry.range.start),
10557 height: message_height,
10558 render: diagnostic_block_renderer(diagnostic, None, true, true),
10559 disposition: BlockDisposition::Below,
10560 priority: 0,
10561 }
10562 }),
10563 cx,
10564 )
10565 .into_iter()
10566 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10567 .collect();
10568
10569 Some(ActiveDiagnosticGroup {
10570 primary_range,
10571 primary_message,
10572 group_id,
10573 blocks,
10574 is_valid: true,
10575 })
10576 });
10577 self.active_diagnostics.is_some()
10578 }
10579
10580 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10581 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10582 self.display_map.update(cx, |display_map, cx| {
10583 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10584 });
10585 cx.notify();
10586 }
10587 }
10588
10589 pub fn set_selections_from_remote(
10590 &mut self,
10591 selections: Vec<Selection<Anchor>>,
10592 pending_selection: Option<Selection<Anchor>>,
10593 cx: &mut ViewContext<Self>,
10594 ) {
10595 let old_cursor_position = self.selections.newest_anchor().head();
10596 self.selections.change_with(cx, |s| {
10597 s.select_anchors(selections);
10598 if let Some(pending_selection) = pending_selection {
10599 s.set_pending(pending_selection, SelectMode::Character);
10600 } else {
10601 s.clear_pending();
10602 }
10603 });
10604 self.selections_did_change(false, &old_cursor_position, true, cx);
10605 }
10606
10607 fn push_to_selection_history(&mut self) {
10608 self.selection_history.push(SelectionHistoryEntry {
10609 selections: self.selections.disjoint_anchors(),
10610 select_next_state: self.select_next_state.clone(),
10611 select_prev_state: self.select_prev_state.clone(),
10612 add_selections_state: self.add_selections_state.clone(),
10613 });
10614 }
10615
10616 pub fn transact(
10617 &mut self,
10618 cx: &mut ViewContext<Self>,
10619 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10620 ) -> Option<TransactionId> {
10621 self.start_transaction_at(Instant::now(), cx);
10622 update(self, cx);
10623 self.end_transaction_at(Instant::now(), cx)
10624 }
10625
10626 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10627 self.end_selection(cx);
10628 if let Some(tx_id) = self
10629 .buffer
10630 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10631 {
10632 self.selection_history
10633 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10634 cx.emit(EditorEvent::TransactionBegun {
10635 transaction_id: tx_id,
10636 })
10637 }
10638 }
10639
10640 fn end_transaction_at(
10641 &mut self,
10642 now: Instant,
10643 cx: &mut ViewContext<Self>,
10644 ) -> Option<TransactionId> {
10645 if let Some(transaction_id) = self
10646 .buffer
10647 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10648 {
10649 if let Some((_, end_selections)) =
10650 self.selection_history.transaction_mut(transaction_id)
10651 {
10652 *end_selections = Some(self.selections.disjoint_anchors());
10653 } else {
10654 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10655 }
10656
10657 cx.emit(EditorEvent::Edited { transaction_id });
10658 Some(transaction_id)
10659 } else {
10660 None
10661 }
10662 }
10663
10664 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10665 let selection = self.selections.newest::<Point>(cx);
10666
10667 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10668 let range = if selection.is_empty() {
10669 let point = selection.head().to_display_point(&display_map);
10670 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10671 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10672 .to_point(&display_map);
10673 start..end
10674 } else {
10675 selection.range()
10676 };
10677 if display_map.folds_in_range(range).next().is_some() {
10678 self.unfold_lines(&Default::default(), cx)
10679 } else {
10680 self.fold(&Default::default(), cx)
10681 }
10682 }
10683
10684 pub fn toggle_fold_recursive(
10685 &mut self,
10686 _: &actions::ToggleFoldRecursive,
10687 cx: &mut ViewContext<Self>,
10688 ) {
10689 let selection = self.selections.newest::<Point>(cx);
10690
10691 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10692 let range = if selection.is_empty() {
10693 let point = selection.head().to_display_point(&display_map);
10694 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10695 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10696 .to_point(&display_map);
10697 start..end
10698 } else {
10699 selection.range()
10700 };
10701 if display_map.folds_in_range(range).next().is_some() {
10702 self.unfold_recursive(&Default::default(), cx)
10703 } else {
10704 self.fold_recursive(&Default::default(), cx)
10705 }
10706 }
10707
10708 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10709 let mut fold_ranges = Vec::new();
10710 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10711 let selections = self.selections.all_adjusted(cx);
10712
10713 for selection in selections {
10714 let range = selection.range().sorted();
10715 let buffer_start_row = range.start.row;
10716
10717 if range.start.row != range.end.row {
10718 let mut found = false;
10719 let mut row = range.start.row;
10720 while row <= range.end.row {
10721 if let Some((foldable_range, fold_text)) =
10722 { display_map.foldable_range(MultiBufferRow(row)) }
10723 {
10724 found = true;
10725 row = foldable_range.end.row + 1;
10726 fold_ranges.push((foldable_range, fold_text));
10727 } else {
10728 row += 1
10729 }
10730 }
10731 if found {
10732 continue;
10733 }
10734 }
10735
10736 for row in (0..=range.start.row).rev() {
10737 if let Some((foldable_range, fold_text)) =
10738 display_map.foldable_range(MultiBufferRow(row))
10739 {
10740 if foldable_range.end.row >= buffer_start_row {
10741 fold_ranges.push((foldable_range, fold_text));
10742 if row <= range.start.row {
10743 break;
10744 }
10745 }
10746 }
10747 }
10748 }
10749
10750 self.fold_ranges(fold_ranges, true, cx);
10751 }
10752
10753 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10754 let mut fold_ranges = Vec::new();
10755 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10756
10757 for row in 0..display_map.max_buffer_row().0 {
10758 if let Some((foldable_range, fold_text)) =
10759 display_map.foldable_range(MultiBufferRow(row))
10760 {
10761 fold_ranges.push((foldable_range, fold_text));
10762 }
10763 }
10764
10765 self.fold_ranges(fold_ranges, true, cx);
10766 }
10767
10768 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10769 let mut fold_ranges = Vec::new();
10770 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10771 let selections = self.selections.all_adjusted(cx);
10772
10773 for selection in selections {
10774 let range = selection.range().sorted();
10775 let buffer_start_row = range.start.row;
10776
10777 if range.start.row != range.end.row {
10778 let mut found = false;
10779 for row in range.start.row..=range.end.row {
10780 if let Some((foldable_range, fold_text)) =
10781 { display_map.foldable_range(MultiBufferRow(row)) }
10782 {
10783 found = true;
10784 fold_ranges.push((foldable_range, fold_text));
10785 }
10786 }
10787 if found {
10788 continue;
10789 }
10790 }
10791
10792 for row in (0..=range.start.row).rev() {
10793 if let Some((foldable_range, fold_text)) =
10794 display_map.foldable_range(MultiBufferRow(row))
10795 {
10796 if foldable_range.end.row >= buffer_start_row {
10797 fold_ranges.push((foldable_range, fold_text));
10798 } else {
10799 break;
10800 }
10801 }
10802 }
10803 }
10804
10805 self.fold_ranges(fold_ranges, true, cx);
10806 }
10807
10808 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10809 let buffer_row = fold_at.buffer_row;
10810 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10811
10812 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
10813 let autoscroll = self
10814 .selections
10815 .all::<Point>(cx)
10816 .iter()
10817 .any(|selection| fold_range.overlaps(&selection.range()));
10818
10819 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
10820 }
10821 }
10822
10823 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10824 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10825 let buffer = &display_map.buffer_snapshot;
10826 let selections = self.selections.all::<Point>(cx);
10827 let ranges = selections
10828 .iter()
10829 .map(|s| {
10830 let range = s.display_range(&display_map).sorted();
10831 let mut start = range.start.to_point(&display_map);
10832 let mut end = range.end.to_point(&display_map);
10833 start.column = 0;
10834 end.column = buffer.line_len(MultiBufferRow(end.row));
10835 start..end
10836 })
10837 .collect::<Vec<_>>();
10838
10839 self.unfold_ranges(ranges, true, true, cx);
10840 }
10841
10842 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10843 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10844 let selections = self.selections.all::<Point>(cx);
10845 let ranges = selections
10846 .iter()
10847 .map(|s| {
10848 let mut range = s.display_range(&display_map).sorted();
10849 *range.start.column_mut() = 0;
10850 *range.end.column_mut() = display_map.line_len(range.end.row());
10851 let start = range.start.to_point(&display_map);
10852 let end = range.end.to_point(&display_map);
10853 start..end
10854 })
10855 .collect::<Vec<_>>();
10856
10857 self.unfold_ranges(ranges, true, true, cx);
10858 }
10859
10860 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10861 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10862
10863 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10864 ..Point::new(
10865 unfold_at.buffer_row.0,
10866 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10867 );
10868
10869 let autoscroll = self
10870 .selections
10871 .all::<Point>(cx)
10872 .iter()
10873 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10874
10875 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
10876 }
10877
10878 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10879 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10880 self.unfold_ranges(
10881 [Point::zero()..display_map.max_point().to_point(&display_map)],
10882 true,
10883 true,
10884 cx,
10885 );
10886 }
10887
10888 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10889 let selections = self.selections.all::<Point>(cx);
10890 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10891 let line_mode = self.selections.line_mode;
10892 let ranges = selections.into_iter().map(|s| {
10893 if line_mode {
10894 let start = Point::new(s.start.row, 0);
10895 let end = Point::new(
10896 s.end.row,
10897 display_map
10898 .buffer_snapshot
10899 .line_len(MultiBufferRow(s.end.row)),
10900 );
10901 (start..end, display_map.fold_placeholder.clone())
10902 } else {
10903 (s.start..s.end, display_map.fold_placeholder.clone())
10904 }
10905 });
10906 self.fold_ranges(ranges, true, cx);
10907 }
10908
10909 pub fn fold_ranges<T: ToOffset + Clone>(
10910 &mut self,
10911 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
10912 auto_scroll: bool,
10913 cx: &mut ViewContext<Self>,
10914 ) {
10915 let mut fold_ranges = Vec::new();
10916 let mut buffers_affected = HashMap::default();
10917 let multi_buffer = self.buffer().read(cx);
10918 for (fold_range, fold_text) in ranges {
10919 if let Some((_, buffer, _)) =
10920 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
10921 {
10922 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10923 };
10924 fold_ranges.push((fold_range, fold_text));
10925 }
10926
10927 let mut ranges = fold_ranges.into_iter().peekable();
10928 if ranges.peek().is_some() {
10929 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
10930
10931 if auto_scroll {
10932 self.request_autoscroll(Autoscroll::fit(), cx);
10933 }
10934
10935 for buffer in buffers_affected.into_values() {
10936 self.sync_expanded_diff_hunks(buffer, cx);
10937 }
10938
10939 cx.notify();
10940
10941 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10942 // Clear diagnostics block when folding a range that contains it.
10943 let snapshot = self.snapshot(cx);
10944 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10945 drop(snapshot);
10946 self.active_diagnostics = Some(active_diagnostics);
10947 self.dismiss_diagnostics(cx);
10948 } else {
10949 self.active_diagnostics = Some(active_diagnostics);
10950 }
10951 }
10952
10953 self.scrollbar_marker_state.dirty = true;
10954 }
10955 }
10956
10957 pub fn unfold_ranges<T: ToOffset + Clone>(
10958 &mut self,
10959 ranges: impl IntoIterator<Item = Range<T>>,
10960 inclusive: bool,
10961 auto_scroll: bool,
10962 cx: &mut ViewContext<Self>,
10963 ) {
10964 let mut unfold_ranges = Vec::new();
10965 let mut buffers_affected = HashMap::default();
10966 let multi_buffer = self.buffer().read(cx);
10967 for range in ranges {
10968 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10969 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10970 };
10971 unfold_ranges.push(range);
10972 }
10973
10974 let mut ranges = unfold_ranges.into_iter().peekable();
10975 if ranges.peek().is_some() {
10976 self.display_map
10977 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
10978 if auto_scroll {
10979 self.request_autoscroll(Autoscroll::fit(), cx);
10980 }
10981
10982 for buffer in buffers_affected.into_values() {
10983 self.sync_expanded_diff_hunks(buffer, cx);
10984 }
10985
10986 cx.notify();
10987 self.scrollbar_marker_state.dirty = true;
10988 self.active_indent_guides_state.dirty = true;
10989 }
10990 }
10991
10992 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
10993 self.display_map.read(cx).fold_placeholder.clone()
10994 }
10995
10996 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10997 if hovered != self.gutter_hovered {
10998 self.gutter_hovered = hovered;
10999 cx.notify();
11000 }
11001 }
11002
11003 pub fn insert_blocks(
11004 &mut self,
11005 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11006 autoscroll: Option<Autoscroll>,
11007 cx: &mut ViewContext<Self>,
11008 ) -> Vec<CustomBlockId> {
11009 let blocks = self
11010 .display_map
11011 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11012 if let Some(autoscroll) = autoscroll {
11013 self.request_autoscroll(autoscroll, cx);
11014 }
11015 cx.notify();
11016 blocks
11017 }
11018
11019 pub fn resize_blocks(
11020 &mut self,
11021 heights: HashMap<CustomBlockId, u32>,
11022 autoscroll: Option<Autoscroll>,
11023 cx: &mut ViewContext<Self>,
11024 ) {
11025 self.display_map
11026 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11027 if let Some(autoscroll) = autoscroll {
11028 self.request_autoscroll(autoscroll, cx);
11029 }
11030 cx.notify();
11031 }
11032
11033 pub fn replace_blocks(
11034 &mut self,
11035 renderers: HashMap<CustomBlockId, RenderBlock>,
11036 autoscroll: Option<Autoscroll>,
11037 cx: &mut ViewContext<Self>,
11038 ) {
11039 self.display_map
11040 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11041 if let Some(autoscroll) = autoscroll {
11042 self.request_autoscroll(autoscroll, cx);
11043 }
11044 cx.notify();
11045 }
11046
11047 pub fn remove_blocks(
11048 &mut self,
11049 block_ids: HashSet<CustomBlockId>,
11050 autoscroll: Option<Autoscroll>,
11051 cx: &mut ViewContext<Self>,
11052 ) {
11053 self.display_map.update(cx, |display_map, cx| {
11054 display_map.remove_blocks(block_ids, cx)
11055 });
11056 if let Some(autoscroll) = autoscroll {
11057 self.request_autoscroll(autoscroll, cx);
11058 }
11059 cx.notify();
11060 }
11061
11062 pub fn row_for_block(
11063 &self,
11064 block_id: CustomBlockId,
11065 cx: &mut ViewContext<Self>,
11066 ) -> Option<DisplayRow> {
11067 self.display_map
11068 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11069 }
11070
11071 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11072 self.focused_block = Some(focused_block);
11073 }
11074
11075 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11076 self.focused_block.take()
11077 }
11078
11079 pub fn insert_creases(
11080 &mut self,
11081 creases: impl IntoIterator<Item = Crease>,
11082 cx: &mut ViewContext<Self>,
11083 ) -> Vec<CreaseId> {
11084 self.display_map
11085 .update(cx, |map, cx| map.insert_creases(creases, cx))
11086 }
11087
11088 pub fn remove_creases(
11089 &mut self,
11090 ids: impl IntoIterator<Item = CreaseId>,
11091 cx: &mut ViewContext<Self>,
11092 ) {
11093 self.display_map
11094 .update(cx, |map, cx| map.remove_creases(ids, cx));
11095 }
11096
11097 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11098 self.display_map
11099 .update(cx, |map, cx| map.snapshot(cx))
11100 .longest_row()
11101 }
11102
11103 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11104 self.display_map
11105 .update(cx, |map, cx| map.snapshot(cx))
11106 .max_point()
11107 }
11108
11109 pub fn text(&self, cx: &AppContext) -> String {
11110 self.buffer.read(cx).read(cx).text()
11111 }
11112
11113 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11114 let text = self.text(cx);
11115 let text = text.trim();
11116
11117 if text.is_empty() {
11118 return None;
11119 }
11120
11121 Some(text.to_string())
11122 }
11123
11124 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11125 self.transact(cx, |this, cx| {
11126 this.buffer
11127 .read(cx)
11128 .as_singleton()
11129 .expect("you can only call set_text on editors for singleton buffers")
11130 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11131 });
11132 }
11133
11134 pub fn display_text(&self, cx: &mut AppContext) -> String {
11135 self.display_map
11136 .update(cx, |map, cx| map.snapshot(cx))
11137 .text()
11138 }
11139
11140 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11141 let mut wrap_guides = smallvec::smallvec![];
11142
11143 if self.show_wrap_guides == Some(false) {
11144 return wrap_guides;
11145 }
11146
11147 let settings = self.buffer.read(cx).settings_at(0, cx);
11148 if settings.show_wrap_guides {
11149 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11150 wrap_guides.push((soft_wrap as usize, true));
11151 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11152 wrap_guides.push((soft_wrap as usize, true));
11153 }
11154 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11155 }
11156
11157 wrap_guides
11158 }
11159
11160 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11161 let settings = self.buffer.read(cx).settings_at(0, cx);
11162 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11163 match mode {
11164 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11165 SoftWrap::None
11166 }
11167 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11168 language_settings::SoftWrap::PreferredLineLength => {
11169 SoftWrap::Column(settings.preferred_line_length)
11170 }
11171 language_settings::SoftWrap::Bounded => {
11172 SoftWrap::Bounded(settings.preferred_line_length)
11173 }
11174 }
11175 }
11176
11177 pub fn set_soft_wrap_mode(
11178 &mut self,
11179 mode: language_settings::SoftWrap,
11180 cx: &mut ViewContext<Self>,
11181 ) {
11182 self.soft_wrap_mode_override = Some(mode);
11183 cx.notify();
11184 }
11185
11186 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11187 let rem_size = cx.rem_size();
11188 self.display_map.update(cx, |map, cx| {
11189 map.set_font(
11190 style.text.font(),
11191 style.text.font_size.to_pixels(rem_size),
11192 cx,
11193 )
11194 });
11195 self.style = Some(style);
11196 }
11197
11198 pub fn style(&self) -> Option<&EditorStyle> {
11199 self.style.as_ref()
11200 }
11201
11202 // Called by the element. This method is not designed to be called outside of the editor
11203 // element's layout code because it does not notify when rewrapping is computed synchronously.
11204 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11205 self.display_map
11206 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11207 }
11208
11209 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11210 if self.soft_wrap_mode_override.is_some() {
11211 self.soft_wrap_mode_override.take();
11212 } else {
11213 let soft_wrap = match self.soft_wrap_mode(cx) {
11214 SoftWrap::GitDiff => return,
11215 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11216 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11217 language_settings::SoftWrap::None
11218 }
11219 };
11220 self.soft_wrap_mode_override = Some(soft_wrap);
11221 }
11222 cx.notify();
11223 }
11224
11225 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11226 let Some(workspace) = self.workspace() else {
11227 return;
11228 };
11229 let fs = workspace.read(cx).app_state().fs.clone();
11230 let current_show = TabBarSettings::get_global(cx).show;
11231 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11232 setting.show = Some(!current_show);
11233 });
11234 }
11235
11236 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11237 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11238 self.buffer
11239 .read(cx)
11240 .settings_at(0, cx)
11241 .indent_guides
11242 .enabled
11243 });
11244 self.show_indent_guides = Some(!currently_enabled);
11245 cx.notify();
11246 }
11247
11248 fn should_show_indent_guides(&self) -> Option<bool> {
11249 self.show_indent_guides
11250 }
11251
11252 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11253 let mut editor_settings = EditorSettings::get_global(cx).clone();
11254 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11255 EditorSettings::override_global(editor_settings, cx);
11256 }
11257
11258 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11259 self.use_relative_line_numbers
11260 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11261 }
11262
11263 pub fn toggle_relative_line_numbers(
11264 &mut self,
11265 _: &ToggleRelativeLineNumbers,
11266 cx: &mut ViewContext<Self>,
11267 ) {
11268 let is_relative = self.should_use_relative_line_numbers(cx);
11269 self.set_relative_line_number(Some(!is_relative), cx)
11270 }
11271
11272 pub fn set_relative_line_number(
11273 &mut self,
11274 is_relative: Option<bool>,
11275 cx: &mut ViewContext<Self>,
11276 ) {
11277 self.use_relative_line_numbers = is_relative;
11278 cx.notify();
11279 }
11280
11281 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11282 self.show_gutter = show_gutter;
11283 cx.notify();
11284 }
11285
11286 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11287 self.show_line_numbers = Some(show_line_numbers);
11288 cx.notify();
11289 }
11290
11291 pub fn set_show_git_diff_gutter(
11292 &mut self,
11293 show_git_diff_gutter: bool,
11294 cx: &mut ViewContext<Self>,
11295 ) {
11296 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11297 cx.notify();
11298 }
11299
11300 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11301 self.show_code_actions = Some(show_code_actions);
11302 cx.notify();
11303 }
11304
11305 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11306 self.show_runnables = Some(show_runnables);
11307 cx.notify();
11308 }
11309
11310 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11311 if self.display_map.read(cx).masked != masked {
11312 self.display_map.update(cx, |map, _| map.masked = masked);
11313 }
11314 cx.notify()
11315 }
11316
11317 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11318 self.show_wrap_guides = Some(show_wrap_guides);
11319 cx.notify();
11320 }
11321
11322 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11323 self.show_indent_guides = Some(show_indent_guides);
11324 cx.notify();
11325 }
11326
11327 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11328 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11329 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11330 if let Some(dir) = file.abs_path(cx).parent() {
11331 return Some(dir.to_owned());
11332 }
11333 }
11334
11335 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11336 return Some(project_path.path.to_path_buf());
11337 }
11338 }
11339
11340 None
11341 }
11342
11343 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11344 self.active_excerpt(cx)?
11345 .1
11346 .read(cx)
11347 .file()
11348 .and_then(|f| f.as_local())
11349 }
11350
11351 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11352 if let Some(target) = self.target_file(cx) {
11353 cx.reveal_path(&target.abs_path(cx));
11354 }
11355 }
11356
11357 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11358 if let Some(file) = self.target_file(cx) {
11359 if let Some(path) = file.abs_path(cx).to_str() {
11360 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11361 }
11362 }
11363 }
11364
11365 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11366 if let Some(file) = self.target_file(cx) {
11367 if let Some(path) = file.path().to_str() {
11368 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11369 }
11370 }
11371 }
11372
11373 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11374 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11375
11376 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11377 self.start_git_blame(true, cx);
11378 }
11379
11380 cx.notify();
11381 }
11382
11383 pub fn toggle_git_blame_inline(
11384 &mut self,
11385 _: &ToggleGitBlameInline,
11386 cx: &mut ViewContext<Self>,
11387 ) {
11388 self.toggle_git_blame_inline_internal(true, cx);
11389 cx.notify();
11390 }
11391
11392 pub fn git_blame_inline_enabled(&self) -> bool {
11393 self.git_blame_inline_enabled
11394 }
11395
11396 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11397 self.show_selection_menu = self
11398 .show_selection_menu
11399 .map(|show_selections_menu| !show_selections_menu)
11400 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11401
11402 cx.notify();
11403 }
11404
11405 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11406 self.show_selection_menu
11407 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11408 }
11409
11410 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11411 if let Some(project) = self.project.as_ref() {
11412 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11413 return;
11414 };
11415
11416 if buffer.read(cx).file().is_none() {
11417 return;
11418 }
11419
11420 let focused = self.focus_handle(cx).contains_focused(cx);
11421
11422 let project = project.clone();
11423 let blame =
11424 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11425 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11426 self.blame = Some(blame);
11427 }
11428 }
11429
11430 fn toggle_git_blame_inline_internal(
11431 &mut self,
11432 user_triggered: bool,
11433 cx: &mut ViewContext<Self>,
11434 ) {
11435 if self.git_blame_inline_enabled {
11436 self.git_blame_inline_enabled = false;
11437 self.show_git_blame_inline = false;
11438 self.show_git_blame_inline_delay_task.take();
11439 } else {
11440 self.git_blame_inline_enabled = true;
11441 self.start_git_blame_inline(user_triggered, cx);
11442 }
11443
11444 cx.notify();
11445 }
11446
11447 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11448 self.start_git_blame(user_triggered, cx);
11449
11450 if ProjectSettings::get_global(cx)
11451 .git
11452 .inline_blame_delay()
11453 .is_some()
11454 {
11455 self.start_inline_blame_timer(cx);
11456 } else {
11457 self.show_git_blame_inline = true
11458 }
11459 }
11460
11461 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11462 self.blame.as_ref()
11463 }
11464
11465 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11466 self.show_git_blame_gutter && self.has_blame_entries(cx)
11467 }
11468
11469 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11470 self.show_git_blame_inline
11471 && self.focus_handle.is_focused(cx)
11472 && !self.newest_selection_head_on_empty_line(cx)
11473 && self.has_blame_entries(cx)
11474 }
11475
11476 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11477 self.blame()
11478 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11479 }
11480
11481 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11482 let cursor_anchor = self.selections.newest_anchor().head();
11483
11484 let snapshot = self.buffer.read(cx).snapshot(cx);
11485 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11486
11487 snapshot.line_len(buffer_row) == 0
11488 }
11489
11490 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11491 let buffer_and_selection = maybe!({
11492 let selection = self.selections.newest::<Point>(cx);
11493 let selection_range = selection.range();
11494
11495 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11496 (buffer, selection_range.start.row..selection_range.end.row)
11497 } else {
11498 let buffer_ranges = self
11499 .buffer()
11500 .read(cx)
11501 .range_to_buffer_ranges(selection_range, cx);
11502
11503 let (buffer, range, _) = if selection.reversed {
11504 buffer_ranges.first()
11505 } else {
11506 buffer_ranges.last()
11507 }?;
11508
11509 let snapshot = buffer.read(cx).snapshot();
11510 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11511 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11512 (buffer.clone(), selection)
11513 };
11514
11515 Some((buffer, selection))
11516 });
11517
11518 let Some((buffer, selection)) = buffer_and_selection else {
11519 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11520 };
11521
11522 let Some(project) = self.project.as_ref() else {
11523 return Task::ready(Err(anyhow!("editor does not have project")));
11524 };
11525
11526 project.update(cx, |project, cx| {
11527 project.get_permalink_to_line(&buffer, selection, cx)
11528 })
11529 }
11530
11531 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11532 let permalink_task = self.get_permalink_to_line(cx);
11533 let workspace = self.workspace();
11534
11535 cx.spawn(|_, mut cx| async move {
11536 match permalink_task.await {
11537 Ok(permalink) => {
11538 cx.update(|cx| {
11539 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11540 })
11541 .ok();
11542 }
11543 Err(err) => {
11544 let message = format!("Failed to copy permalink: {err}");
11545
11546 Err::<(), anyhow::Error>(err).log_err();
11547
11548 if let Some(workspace) = workspace {
11549 workspace
11550 .update(&mut cx, |workspace, cx| {
11551 struct CopyPermalinkToLine;
11552
11553 workspace.show_toast(
11554 Toast::new(
11555 NotificationId::unique::<CopyPermalinkToLine>(),
11556 message,
11557 ),
11558 cx,
11559 )
11560 })
11561 .ok();
11562 }
11563 }
11564 }
11565 })
11566 .detach();
11567 }
11568
11569 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11570 if let Some(file) = self.target_file(cx) {
11571 if let Some(path) = file.path().to_str() {
11572 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11573 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11574 }
11575 }
11576 }
11577
11578 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11579 let permalink_task = self.get_permalink_to_line(cx);
11580 let workspace = self.workspace();
11581
11582 cx.spawn(|_, mut cx| async move {
11583 match permalink_task.await {
11584 Ok(permalink) => {
11585 cx.update(|cx| {
11586 cx.open_url(permalink.as_ref());
11587 })
11588 .ok();
11589 }
11590 Err(err) => {
11591 let message = format!("Failed to open permalink: {err}");
11592
11593 Err::<(), anyhow::Error>(err).log_err();
11594
11595 if let Some(workspace) = workspace {
11596 workspace
11597 .update(&mut cx, |workspace, cx| {
11598 struct OpenPermalinkToLine;
11599
11600 workspace.show_toast(
11601 Toast::new(
11602 NotificationId::unique::<OpenPermalinkToLine>(),
11603 message,
11604 ),
11605 cx,
11606 )
11607 })
11608 .ok();
11609 }
11610 }
11611 }
11612 })
11613 .detach();
11614 }
11615
11616 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11617 /// last highlight added will be used.
11618 ///
11619 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11620 pub fn highlight_rows<T: 'static>(
11621 &mut self,
11622 range: Range<Anchor>,
11623 color: Hsla,
11624 should_autoscroll: bool,
11625 cx: &mut ViewContext<Self>,
11626 ) {
11627 let snapshot = self.buffer().read(cx).snapshot(cx);
11628 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11629 let ix = row_highlights.binary_search_by(|highlight| {
11630 Ordering::Equal
11631 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11632 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11633 });
11634
11635 if let Err(mut ix) = ix {
11636 let index = post_inc(&mut self.highlight_order);
11637
11638 // If this range intersects with the preceding highlight, then merge it with
11639 // the preceding highlight. Otherwise insert a new highlight.
11640 let mut merged = false;
11641 if ix > 0 {
11642 let prev_highlight = &mut row_highlights[ix - 1];
11643 if prev_highlight
11644 .range
11645 .end
11646 .cmp(&range.start, &snapshot)
11647 .is_ge()
11648 {
11649 ix -= 1;
11650 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11651 prev_highlight.range.end = range.end;
11652 }
11653 merged = true;
11654 prev_highlight.index = index;
11655 prev_highlight.color = color;
11656 prev_highlight.should_autoscroll = should_autoscroll;
11657 }
11658 }
11659
11660 if !merged {
11661 row_highlights.insert(
11662 ix,
11663 RowHighlight {
11664 range: range.clone(),
11665 index,
11666 color,
11667 should_autoscroll,
11668 },
11669 );
11670 }
11671
11672 // If any of the following highlights intersect with this one, merge them.
11673 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11674 let highlight = &row_highlights[ix];
11675 if next_highlight
11676 .range
11677 .start
11678 .cmp(&highlight.range.end, &snapshot)
11679 .is_le()
11680 {
11681 if next_highlight
11682 .range
11683 .end
11684 .cmp(&highlight.range.end, &snapshot)
11685 .is_gt()
11686 {
11687 row_highlights[ix].range.end = next_highlight.range.end;
11688 }
11689 row_highlights.remove(ix + 1);
11690 } else {
11691 break;
11692 }
11693 }
11694 }
11695 }
11696
11697 /// Remove any highlighted row ranges of the given type that intersect the
11698 /// given ranges.
11699 pub fn remove_highlighted_rows<T: 'static>(
11700 &mut self,
11701 ranges_to_remove: Vec<Range<Anchor>>,
11702 cx: &mut ViewContext<Self>,
11703 ) {
11704 let snapshot = self.buffer().read(cx).snapshot(cx);
11705 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11706 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11707 row_highlights.retain(|highlight| {
11708 while let Some(range_to_remove) = ranges_to_remove.peek() {
11709 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11710 Ordering::Less | Ordering::Equal => {
11711 ranges_to_remove.next();
11712 }
11713 Ordering::Greater => {
11714 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11715 Ordering::Less | Ordering::Equal => {
11716 return false;
11717 }
11718 Ordering::Greater => break,
11719 }
11720 }
11721 }
11722 }
11723
11724 true
11725 })
11726 }
11727
11728 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11729 pub fn clear_row_highlights<T: 'static>(&mut self) {
11730 self.highlighted_rows.remove(&TypeId::of::<T>());
11731 }
11732
11733 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11734 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11735 self.highlighted_rows
11736 .get(&TypeId::of::<T>())
11737 .map_or(&[] as &[_], |vec| vec.as_slice())
11738 .iter()
11739 .map(|highlight| (highlight.range.clone(), highlight.color))
11740 }
11741
11742 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11743 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11744 /// Allows to ignore certain kinds of highlights.
11745 pub fn highlighted_display_rows(
11746 &mut self,
11747 cx: &mut WindowContext,
11748 ) -> BTreeMap<DisplayRow, Hsla> {
11749 let snapshot = self.snapshot(cx);
11750 let mut used_highlight_orders = HashMap::default();
11751 self.highlighted_rows
11752 .iter()
11753 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11754 .fold(
11755 BTreeMap::<DisplayRow, Hsla>::new(),
11756 |mut unique_rows, highlight| {
11757 let start = highlight.range.start.to_display_point(&snapshot);
11758 let end = highlight.range.end.to_display_point(&snapshot);
11759 let start_row = start.row().0;
11760 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11761 && end.column() == 0
11762 {
11763 end.row().0.saturating_sub(1)
11764 } else {
11765 end.row().0
11766 };
11767 for row in start_row..=end_row {
11768 let used_index =
11769 used_highlight_orders.entry(row).or_insert(highlight.index);
11770 if highlight.index >= *used_index {
11771 *used_index = highlight.index;
11772 unique_rows.insert(DisplayRow(row), highlight.color);
11773 }
11774 }
11775 unique_rows
11776 },
11777 )
11778 }
11779
11780 pub fn highlighted_display_row_for_autoscroll(
11781 &self,
11782 snapshot: &DisplaySnapshot,
11783 ) -> Option<DisplayRow> {
11784 self.highlighted_rows
11785 .values()
11786 .flat_map(|highlighted_rows| highlighted_rows.iter())
11787 .filter_map(|highlight| {
11788 if highlight.should_autoscroll {
11789 Some(highlight.range.start.to_display_point(snapshot).row())
11790 } else {
11791 None
11792 }
11793 })
11794 .min()
11795 }
11796
11797 pub fn set_search_within_ranges(
11798 &mut self,
11799 ranges: &[Range<Anchor>],
11800 cx: &mut ViewContext<Self>,
11801 ) {
11802 self.highlight_background::<SearchWithinRange>(
11803 ranges,
11804 |colors| colors.editor_document_highlight_read_background,
11805 cx,
11806 )
11807 }
11808
11809 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11810 self.breadcrumb_header = Some(new_header);
11811 }
11812
11813 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11814 self.clear_background_highlights::<SearchWithinRange>(cx);
11815 }
11816
11817 pub fn highlight_background<T: 'static>(
11818 &mut self,
11819 ranges: &[Range<Anchor>],
11820 color_fetcher: fn(&ThemeColors) -> Hsla,
11821 cx: &mut ViewContext<Self>,
11822 ) {
11823 self.background_highlights
11824 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11825 self.scrollbar_marker_state.dirty = true;
11826 cx.notify();
11827 }
11828
11829 pub fn clear_background_highlights<T: 'static>(
11830 &mut self,
11831 cx: &mut ViewContext<Self>,
11832 ) -> Option<BackgroundHighlight> {
11833 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11834 if !text_highlights.1.is_empty() {
11835 self.scrollbar_marker_state.dirty = true;
11836 cx.notify();
11837 }
11838 Some(text_highlights)
11839 }
11840
11841 pub fn highlight_gutter<T: 'static>(
11842 &mut self,
11843 ranges: &[Range<Anchor>],
11844 color_fetcher: fn(&AppContext) -> Hsla,
11845 cx: &mut ViewContext<Self>,
11846 ) {
11847 self.gutter_highlights
11848 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11849 cx.notify();
11850 }
11851
11852 pub fn clear_gutter_highlights<T: 'static>(
11853 &mut self,
11854 cx: &mut ViewContext<Self>,
11855 ) -> Option<GutterHighlight> {
11856 cx.notify();
11857 self.gutter_highlights.remove(&TypeId::of::<T>())
11858 }
11859
11860 #[cfg(feature = "test-support")]
11861 pub fn all_text_background_highlights(
11862 &mut self,
11863 cx: &mut ViewContext<Self>,
11864 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11865 let snapshot = self.snapshot(cx);
11866 let buffer = &snapshot.buffer_snapshot;
11867 let start = buffer.anchor_before(0);
11868 let end = buffer.anchor_after(buffer.len());
11869 let theme = cx.theme().colors();
11870 self.background_highlights_in_range(start..end, &snapshot, theme)
11871 }
11872
11873 #[cfg(feature = "test-support")]
11874 pub fn search_background_highlights(
11875 &mut self,
11876 cx: &mut ViewContext<Self>,
11877 ) -> Vec<Range<Point>> {
11878 let snapshot = self.buffer().read(cx).snapshot(cx);
11879
11880 let highlights = self
11881 .background_highlights
11882 .get(&TypeId::of::<items::BufferSearchHighlights>());
11883
11884 if let Some((_color, ranges)) = highlights {
11885 ranges
11886 .iter()
11887 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11888 .collect_vec()
11889 } else {
11890 vec![]
11891 }
11892 }
11893
11894 fn document_highlights_for_position<'a>(
11895 &'a self,
11896 position: Anchor,
11897 buffer: &'a MultiBufferSnapshot,
11898 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11899 let read_highlights = self
11900 .background_highlights
11901 .get(&TypeId::of::<DocumentHighlightRead>())
11902 .map(|h| &h.1);
11903 let write_highlights = self
11904 .background_highlights
11905 .get(&TypeId::of::<DocumentHighlightWrite>())
11906 .map(|h| &h.1);
11907 let left_position = position.bias_left(buffer);
11908 let right_position = position.bias_right(buffer);
11909 read_highlights
11910 .into_iter()
11911 .chain(write_highlights)
11912 .flat_map(move |ranges| {
11913 let start_ix = match ranges.binary_search_by(|probe| {
11914 let cmp = probe.end.cmp(&left_position, buffer);
11915 if cmp.is_ge() {
11916 Ordering::Greater
11917 } else {
11918 Ordering::Less
11919 }
11920 }) {
11921 Ok(i) | Err(i) => i,
11922 };
11923
11924 ranges[start_ix..]
11925 .iter()
11926 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11927 })
11928 }
11929
11930 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11931 self.background_highlights
11932 .get(&TypeId::of::<T>())
11933 .map_or(false, |(_, highlights)| !highlights.is_empty())
11934 }
11935
11936 pub fn background_highlights_in_range(
11937 &self,
11938 search_range: Range<Anchor>,
11939 display_snapshot: &DisplaySnapshot,
11940 theme: &ThemeColors,
11941 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11942 let mut results = Vec::new();
11943 for (color_fetcher, ranges) in self.background_highlights.values() {
11944 let color = color_fetcher(theme);
11945 let start_ix = match ranges.binary_search_by(|probe| {
11946 let cmp = probe
11947 .end
11948 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11949 if cmp.is_gt() {
11950 Ordering::Greater
11951 } else {
11952 Ordering::Less
11953 }
11954 }) {
11955 Ok(i) | Err(i) => i,
11956 };
11957 for range in &ranges[start_ix..] {
11958 if range
11959 .start
11960 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11961 .is_ge()
11962 {
11963 break;
11964 }
11965
11966 let start = range.start.to_display_point(display_snapshot);
11967 let end = range.end.to_display_point(display_snapshot);
11968 results.push((start..end, color))
11969 }
11970 }
11971 results
11972 }
11973
11974 pub fn background_highlight_row_ranges<T: 'static>(
11975 &self,
11976 search_range: Range<Anchor>,
11977 display_snapshot: &DisplaySnapshot,
11978 count: usize,
11979 ) -> Vec<RangeInclusive<DisplayPoint>> {
11980 let mut results = Vec::new();
11981 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
11982 return vec![];
11983 };
11984
11985 let start_ix = match ranges.binary_search_by(|probe| {
11986 let cmp = probe
11987 .end
11988 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11989 if cmp.is_gt() {
11990 Ordering::Greater
11991 } else {
11992 Ordering::Less
11993 }
11994 }) {
11995 Ok(i) | Err(i) => i,
11996 };
11997 let mut push_region = |start: Option<Point>, end: Option<Point>| {
11998 if let (Some(start_display), Some(end_display)) = (start, end) {
11999 results.push(
12000 start_display.to_display_point(display_snapshot)
12001 ..=end_display.to_display_point(display_snapshot),
12002 );
12003 }
12004 };
12005 let mut start_row: Option<Point> = None;
12006 let mut end_row: Option<Point> = None;
12007 if ranges.len() > count {
12008 return Vec::new();
12009 }
12010 for range in &ranges[start_ix..] {
12011 if range
12012 .start
12013 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12014 .is_ge()
12015 {
12016 break;
12017 }
12018 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12019 if let Some(current_row) = &end_row {
12020 if end.row == current_row.row {
12021 continue;
12022 }
12023 }
12024 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12025 if start_row.is_none() {
12026 assert_eq!(end_row, None);
12027 start_row = Some(start);
12028 end_row = Some(end);
12029 continue;
12030 }
12031 if let Some(current_end) = end_row.as_mut() {
12032 if start.row > current_end.row + 1 {
12033 push_region(start_row, end_row);
12034 start_row = Some(start);
12035 end_row = Some(end);
12036 } else {
12037 // Merge two hunks.
12038 *current_end = end;
12039 }
12040 } else {
12041 unreachable!();
12042 }
12043 }
12044 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12045 push_region(start_row, end_row);
12046 results
12047 }
12048
12049 pub fn gutter_highlights_in_range(
12050 &self,
12051 search_range: Range<Anchor>,
12052 display_snapshot: &DisplaySnapshot,
12053 cx: &AppContext,
12054 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12055 let mut results = Vec::new();
12056 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12057 let color = color_fetcher(cx);
12058 let start_ix = match ranges.binary_search_by(|probe| {
12059 let cmp = probe
12060 .end
12061 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12062 if cmp.is_gt() {
12063 Ordering::Greater
12064 } else {
12065 Ordering::Less
12066 }
12067 }) {
12068 Ok(i) | Err(i) => i,
12069 };
12070 for range in &ranges[start_ix..] {
12071 if range
12072 .start
12073 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12074 .is_ge()
12075 {
12076 break;
12077 }
12078
12079 let start = range.start.to_display_point(display_snapshot);
12080 let end = range.end.to_display_point(display_snapshot);
12081 results.push((start..end, color))
12082 }
12083 }
12084 results
12085 }
12086
12087 /// Get the text ranges corresponding to the redaction query
12088 pub fn redacted_ranges(
12089 &self,
12090 search_range: Range<Anchor>,
12091 display_snapshot: &DisplaySnapshot,
12092 cx: &WindowContext,
12093 ) -> Vec<Range<DisplayPoint>> {
12094 display_snapshot
12095 .buffer_snapshot
12096 .redacted_ranges(search_range, |file| {
12097 if let Some(file) = file {
12098 file.is_private()
12099 && EditorSettings::get(
12100 Some(SettingsLocation {
12101 worktree_id: file.worktree_id(cx),
12102 path: file.path().as_ref(),
12103 }),
12104 cx,
12105 )
12106 .redact_private_values
12107 } else {
12108 false
12109 }
12110 })
12111 .map(|range| {
12112 range.start.to_display_point(display_snapshot)
12113 ..range.end.to_display_point(display_snapshot)
12114 })
12115 .collect()
12116 }
12117
12118 pub fn highlight_text<T: 'static>(
12119 &mut self,
12120 ranges: Vec<Range<Anchor>>,
12121 style: HighlightStyle,
12122 cx: &mut ViewContext<Self>,
12123 ) {
12124 self.display_map.update(cx, |map, _| {
12125 map.highlight_text(TypeId::of::<T>(), ranges, style)
12126 });
12127 cx.notify();
12128 }
12129
12130 pub(crate) fn highlight_inlays<T: 'static>(
12131 &mut self,
12132 highlights: Vec<InlayHighlight>,
12133 style: HighlightStyle,
12134 cx: &mut ViewContext<Self>,
12135 ) {
12136 self.display_map.update(cx, |map, _| {
12137 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12138 });
12139 cx.notify();
12140 }
12141
12142 pub fn text_highlights<'a, T: 'static>(
12143 &'a self,
12144 cx: &'a AppContext,
12145 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12146 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12147 }
12148
12149 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12150 let cleared = self
12151 .display_map
12152 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12153 if cleared {
12154 cx.notify();
12155 }
12156 }
12157
12158 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12159 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12160 && self.focus_handle.is_focused(cx)
12161 }
12162
12163 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12164 self.show_cursor_when_unfocused = is_enabled;
12165 cx.notify();
12166 }
12167
12168 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12169 cx.notify();
12170 }
12171
12172 fn on_buffer_event(
12173 &mut self,
12174 multibuffer: Model<MultiBuffer>,
12175 event: &multi_buffer::Event,
12176 cx: &mut ViewContext<Self>,
12177 ) {
12178 match event {
12179 multi_buffer::Event::Edited {
12180 singleton_buffer_edited,
12181 } => {
12182 self.scrollbar_marker_state.dirty = true;
12183 self.active_indent_guides_state.dirty = true;
12184 self.refresh_active_diagnostics(cx);
12185 self.refresh_code_actions(cx);
12186 if self.has_active_inline_completion(cx) {
12187 self.update_visible_inline_completion(cx);
12188 }
12189 cx.emit(EditorEvent::BufferEdited);
12190 cx.emit(SearchEvent::MatchesInvalidated);
12191 if *singleton_buffer_edited {
12192 if let Some(project) = &self.project {
12193 let project = project.read(cx);
12194 #[allow(clippy::mutable_key_type)]
12195 let languages_affected = multibuffer
12196 .read(cx)
12197 .all_buffers()
12198 .into_iter()
12199 .filter_map(|buffer| {
12200 let buffer = buffer.read(cx);
12201 let language = buffer.language()?;
12202 if project.is_local()
12203 && project.language_servers_for_buffer(buffer, cx).count() == 0
12204 {
12205 None
12206 } else {
12207 Some(language)
12208 }
12209 })
12210 .cloned()
12211 .collect::<HashSet<_>>();
12212 if !languages_affected.is_empty() {
12213 self.refresh_inlay_hints(
12214 InlayHintRefreshReason::BufferEdited(languages_affected),
12215 cx,
12216 );
12217 }
12218 }
12219 }
12220
12221 let Some(project) = &self.project else { return };
12222 let (telemetry, is_via_ssh) = {
12223 let project = project.read(cx);
12224 let telemetry = project.client().telemetry().clone();
12225 let is_via_ssh = project.is_via_ssh();
12226 (telemetry, is_via_ssh)
12227 };
12228 refresh_linked_ranges(self, cx);
12229 telemetry.log_edit_event("editor", is_via_ssh);
12230 }
12231 multi_buffer::Event::ExcerptsAdded {
12232 buffer,
12233 predecessor,
12234 excerpts,
12235 } => {
12236 self.tasks_update_task = Some(self.refresh_runnables(cx));
12237 cx.emit(EditorEvent::ExcerptsAdded {
12238 buffer: buffer.clone(),
12239 predecessor: *predecessor,
12240 excerpts: excerpts.clone(),
12241 });
12242 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12243 }
12244 multi_buffer::Event::ExcerptsRemoved { ids } => {
12245 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12246 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12247 }
12248 multi_buffer::Event::ExcerptsEdited { ids } => {
12249 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12250 }
12251 multi_buffer::Event::ExcerptsExpanded { ids } => {
12252 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12253 }
12254 multi_buffer::Event::Reparsed(buffer_id) => {
12255 self.tasks_update_task = Some(self.refresh_runnables(cx));
12256
12257 cx.emit(EditorEvent::Reparsed(*buffer_id));
12258 }
12259 multi_buffer::Event::LanguageChanged(buffer_id) => {
12260 linked_editing_ranges::refresh_linked_ranges(self, cx);
12261 cx.emit(EditorEvent::Reparsed(*buffer_id));
12262 cx.notify();
12263 }
12264 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12265 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12266 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12267 cx.emit(EditorEvent::TitleChanged)
12268 }
12269 multi_buffer::Event::DiffBaseChanged => {
12270 self.scrollbar_marker_state.dirty = true;
12271 cx.emit(EditorEvent::DiffBaseChanged);
12272 cx.notify();
12273 }
12274 multi_buffer::Event::DiffUpdated { buffer } => {
12275 self.sync_expanded_diff_hunks(buffer.clone(), cx);
12276 cx.notify();
12277 }
12278 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12279 multi_buffer::Event::DiagnosticsUpdated => {
12280 self.refresh_active_diagnostics(cx);
12281 self.scrollbar_marker_state.dirty = true;
12282 cx.notify();
12283 }
12284 _ => {}
12285 };
12286 }
12287
12288 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12289 cx.notify();
12290 }
12291
12292 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12293 self.tasks_update_task = Some(self.refresh_runnables(cx));
12294 self.refresh_inline_completion(true, false, cx);
12295 self.refresh_inlay_hints(
12296 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12297 self.selections.newest_anchor().head(),
12298 &self.buffer.read(cx).snapshot(cx),
12299 cx,
12300 )),
12301 cx,
12302 );
12303
12304 let old_cursor_shape = self.cursor_shape;
12305
12306 {
12307 let editor_settings = EditorSettings::get_global(cx);
12308 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12309 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12310 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12311 }
12312
12313 if old_cursor_shape != self.cursor_shape {
12314 cx.emit(EditorEvent::CursorShapeChanged);
12315 }
12316
12317 let project_settings = ProjectSettings::get_global(cx);
12318 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12319
12320 if self.mode == EditorMode::Full {
12321 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12322 if self.git_blame_inline_enabled != inline_blame_enabled {
12323 self.toggle_git_blame_inline_internal(false, cx);
12324 }
12325 }
12326
12327 cx.notify();
12328 }
12329
12330 pub fn set_searchable(&mut self, searchable: bool) {
12331 self.searchable = searchable;
12332 }
12333
12334 pub fn searchable(&self) -> bool {
12335 self.searchable
12336 }
12337
12338 fn open_proposed_changes_editor(
12339 &mut self,
12340 _: &OpenProposedChangesEditor,
12341 cx: &mut ViewContext<Self>,
12342 ) {
12343 let Some(workspace) = self.workspace() else {
12344 cx.propagate();
12345 return;
12346 };
12347
12348 let buffer = self.buffer.read(cx);
12349 let mut new_selections_by_buffer = HashMap::default();
12350 for selection in self.selections.all::<usize>(cx) {
12351 for (buffer, range, _) in
12352 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12353 {
12354 let mut range = range.to_point(buffer.read(cx));
12355 range.start.column = 0;
12356 range.end.column = buffer.read(cx).line_len(range.end.row);
12357 new_selections_by_buffer
12358 .entry(buffer)
12359 .or_insert(Vec::new())
12360 .push(range)
12361 }
12362 }
12363
12364 let proposed_changes_buffers = new_selections_by_buffer
12365 .into_iter()
12366 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12367 .collect::<Vec<_>>();
12368 let proposed_changes_editor = cx.new_view(|cx| {
12369 ProposedChangesEditor::new(
12370 "Proposed changes",
12371 proposed_changes_buffers,
12372 self.project.clone(),
12373 cx,
12374 )
12375 });
12376
12377 cx.window_context().defer(move |cx| {
12378 workspace.update(cx, |workspace, cx| {
12379 workspace.active_pane().update(cx, |pane, cx| {
12380 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12381 });
12382 });
12383 });
12384 }
12385
12386 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12387 self.open_excerpts_common(true, cx)
12388 }
12389
12390 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12391 self.open_excerpts_common(false, cx)
12392 }
12393
12394 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
12395 let buffer = self.buffer.read(cx);
12396 if buffer.is_singleton() {
12397 cx.propagate();
12398 return;
12399 }
12400
12401 let Some(workspace) = self.workspace() else {
12402 cx.propagate();
12403 return;
12404 };
12405
12406 let mut new_selections_by_buffer = HashMap::default();
12407 for selection in self.selections.all::<usize>(cx) {
12408 for (mut buffer_handle, mut range, _) in
12409 buffer.range_to_buffer_ranges(selection.range(), cx)
12410 {
12411 // When editing branch buffers, jump to the corresponding location
12412 // in their base buffer.
12413 let buffer = buffer_handle.read(cx);
12414 if let Some(base_buffer) = buffer.diff_base_buffer() {
12415 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12416 buffer_handle = base_buffer;
12417 }
12418
12419 if selection.reversed {
12420 mem::swap(&mut range.start, &mut range.end);
12421 }
12422 new_selections_by_buffer
12423 .entry(buffer_handle)
12424 .or_insert(Vec::new())
12425 .push(range)
12426 }
12427 }
12428
12429 // We defer the pane interaction because we ourselves are a workspace item
12430 // and activating a new item causes the pane to call a method on us reentrantly,
12431 // which panics if we're on the stack.
12432 cx.window_context().defer(move |cx| {
12433 workspace.update(cx, |workspace, cx| {
12434 let pane = if split {
12435 workspace.adjacent_pane(cx)
12436 } else {
12437 workspace.active_pane().clone()
12438 };
12439
12440 for (buffer, ranges) in new_selections_by_buffer {
12441 let editor =
12442 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
12443 editor.update(cx, |editor, cx| {
12444 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
12445 s.select_ranges(ranges);
12446 });
12447 });
12448 }
12449 })
12450 });
12451 }
12452
12453 fn jump(
12454 &mut self,
12455 path: ProjectPath,
12456 position: Point,
12457 anchor: language::Anchor,
12458 offset_from_top: u32,
12459 cx: &mut ViewContext<Self>,
12460 ) {
12461 let workspace = self.workspace();
12462 cx.spawn(|_, mut cx| async move {
12463 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
12464 let editor = workspace.update(&mut cx, |workspace, cx| {
12465 // Reset the preview item id before opening the new item
12466 workspace.active_pane().update(cx, |pane, cx| {
12467 pane.set_preview_item_id(None, cx);
12468 });
12469 workspace.open_path_preview(path, None, true, true, cx)
12470 })?;
12471 let editor = editor
12472 .await?
12473 .downcast::<Editor>()
12474 .ok_or_else(|| anyhow!("opened item was not an editor"))?
12475 .downgrade();
12476 editor.update(&mut cx, |editor, cx| {
12477 let buffer = editor
12478 .buffer()
12479 .read(cx)
12480 .as_singleton()
12481 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
12482 let buffer = buffer.read(cx);
12483 let cursor = if buffer.can_resolve(&anchor) {
12484 language::ToPoint::to_point(&anchor, buffer)
12485 } else {
12486 buffer.clip_point(position, Bias::Left)
12487 };
12488
12489 let nav_history = editor.nav_history.take();
12490 editor.change_selections(
12491 Some(Autoscroll::top_relative(offset_from_top as usize)),
12492 cx,
12493 |s| {
12494 s.select_ranges([cursor..cursor]);
12495 },
12496 );
12497 editor.nav_history = nav_history;
12498
12499 anyhow::Ok(())
12500 })??;
12501
12502 anyhow::Ok(())
12503 })
12504 .detach_and_log_err(cx);
12505 }
12506
12507 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12508 let snapshot = self.buffer.read(cx).read(cx);
12509 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12510 Some(
12511 ranges
12512 .iter()
12513 .map(move |range| {
12514 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12515 })
12516 .collect(),
12517 )
12518 }
12519
12520 fn selection_replacement_ranges(
12521 &self,
12522 range: Range<OffsetUtf16>,
12523 cx: &AppContext,
12524 ) -> Vec<Range<OffsetUtf16>> {
12525 let selections = self.selections.all::<OffsetUtf16>(cx);
12526 let newest_selection = selections
12527 .iter()
12528 .max_by_key(|selection| selection.id)
12529 .unwrap();
12530 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12531 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12532 let snapshot = self.buffer.read(cx).read(cx);
12533 selections
12534 .into_iter()
12535 .map(|mut selection| {
12536 selection.start.0 =
12537 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12538 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12539 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12540 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12541 })
12542 .collect()
12543 }
12544
12545 fn report_editor_event(
12546 &self,
12547 operation: &'static str,
12548 file_extension: Option<String>,
12549 cx: &AppContext,
12550 ) {
12551 if cfg!(any(test, feature = "test-support")) {
12552 return;
12553 }
12554
12555 let Some(project) = &self.project else { return };
12556
12557 // If None, we are in a file without an extension
12558 let file = self
12559 .buffer
12560 .read(cx)
12561 .as_singleton()
12562 .and_then(|b| b.read(cx).file());
12563 let file_extension = file_extension.or(file
12564 .as_ref()
12565 .and_then(|file| Path::new(file.file_name(cx)).extension())
12566 .and_then(|e| e.to_str())
12567 .map(|a| a.to_string()));
12568
12569 let vim_mode = cx
12570 .global::<SettingsStore>()
12571 .raw_user_settings()
12572 .get("vim_mode")
12573 == Some(&serde_json::Value::Bool(true));
12574
12575 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12576 == language::language_settings::InlineCompletionProvider::Copilot;
12577 let copilot_enabled_for_language = self
12578 .buffer
12579 .read(cx)
12580 .settings_at(0, cx)
12581 .show_inline_completions;
12582
12583 let project = project.read(cx);
12584 let telemetry = project.client().telemetry().clone();
12585 telemetry.report_editor_event(
12586 file_extension,
12587 vim_mode,
12588 operation,
12589 copilot_enabled,
12590 copilot_enabled_for_language,
12591 project.is_via_ssh(),
12592 )
12593 }
12594
12595 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12596 /// with each line being an array of {text, highlight} objects.
12597 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12598 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12599 return;
12600 };
12601
12602 #[derive(Serialize)]
12603 struct Chunk<'a> {
12604 text: String,
12605 highlight: Option<&'a str>,
12606 }
12607
12608 let snapshot = buffer.read(cx).snapshot();
12609 let range = self
12610 .selected_text_range(false, cx)
12611 .and_then(|selection| {
12612 if selection.range.is_empty() {
12613 None
12614 } else {
12615 Some(selection.range)
12616 }
12617 })
12618 .unwrap_or_else(|| 0..snapshot.len());
12619
12620 let chunks = snapshot.chunks(range, true);
12621 let mut lines = Vec::new();
12622 let mut line: VecDeque<Chunk> = VecDeque::new();
12623
12624 let Some(style) = self.style.as_ref() else {
12625 return;
12626 };
12627
12628 for chunk in chunks {
12629 let highlight = chunk
12630 .syntax_highlight_id
12631 .and_then(|id| id.name(&style.syntax));
12632 let mut chunk_lines = chunk.text.split('\n').peekable();
12633 while let Some(text) = chunk_lines.next() {
12634 let mut merged_with_last_token = false;
12635 if let Some(last_token) = line.back_mut() {
12636 if last_token.highlight == highlight {
12637 last_token.text.push_str(text);
12638 merged_with_last_token = true;
12639 }
12640 }
12641
12642 if !merged_with_last_token {
12643 line.push_back(Chunk {
12644 text: text.into(),
12645 highlight,
12646 });
12647 }
12648
12649 if chunk_lines.peek().is_some() {
12650 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12651 line.pop_front();
12652 }
12653 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12654 line.pop_back();
12655 }
12656
12657 lines.push(mem::take(&mut line));
12658 }
12659 }
12660 }
12661
12662 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12663 return;
12664 };
12665 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12666 }
12667
12668 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12669 &self.inlay_hint_cache
12670 }
12671
12672 pub fn replay_insert_event(
12673 &mut self,
12674 text: &str,
12675 relative_utf16_range: Option<Range<isize>>,
12676 cx: &mut ViewContext<Self>,
12677 ) {
12678 if !self.input_enabled {
12679 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12680 return;
12681 }
12682 if let Some(relative_utf16_range) = relative_utf16_range {
12683 let selections = self.selections.all::<OffsetUtf16>(cx);
12684 self.change_selections(None, cx, |s| {
12685 let new_ranges = selections.into_iter().map(|range| {
12686 let start = OffsetUtf16(
12687 range
12688 .head()
12689 .0
12690 .saturating_add_signed(relative_utf16_range.start),
12691 );
12692 let end = OffsetUtf16(
12693 range
12694 .head()
12695 .0
12696 .saturating_add_signed(relative_utf16_range.end),
12697 );
12698 start..end
12699 });
12700 s.select_ranges(new_ranges);
12701 });
12702 }
12703
12704 self.handle_input(text, cx);
12705 }
12706
12707 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12708 let Some(provider) = self.semantics_provider.as_ref() else {
12709 return false;
12710 };
12711
12712 let mut supports = false;
12713 self.buffer().read(cx).for_each_buffer(|buffer| {
12714 supports |= provider.supports_inlay_hints(buffer, cx);
12715 });
12716 supports
12717 }
12718
12719 pub fn focus(&self, cx: &mut WindowContext) {
12720 cx.focus(&self.focus_handle)
12721 }
12722
12723 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12724 self.focus_handle.is_focused(cx)
12725 }
12726
12727 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12728 cx.emit(EditorEvent::Focused);
12729
12730 if let Some(descendant) = self
12731 .last_focused_descendant
12732 .take()
12733 .and_then(|descendant| descendant.upgrade())
12734 {
12735 cx.focus(&descendant);
12736 } else {
12737 if let Some(blame) = self.blame.as_ref() {
12738 blame.update(cx, GitBlame::focus)
12739 }
12740
12741 self.blink_manager.update(cx, BlinkManager::enable);
12742 self.show_cursor_names(cx);
12743 self.buffer.update(cx, |buffer, cx| {
12744 buffer.finalize_last_transaction(cx);
12745 if self.leader_peer_id.is_none() {
12746 buffer.set_active_selections(
12747 &self.selections.disjoint_anchors(),
12748 self.selections.line_mode,
12749 self.cursor_shape,
12750 cx,
12751 );
12752 }
12753 });
12754 }
12755 }
12756
12757 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12758 cx.emit(EditorEvent::FocusedIn)
12759 }
12760
12761 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12762 if event.blurred != self.focus_handle {
12763 self.last_focused_descendant = Some(event.blurred);
12764 }
12765 }
12766
12767 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12768 self.blink_manager.update(cx, BlinkManager::disable);
12769 self.buffer
12770 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12771
12772 if let Some(blame) = self.blame.as_ref() {
12773 blame.update(cx, GitBlame::blur)
12774 }
12775 if !self.hover_state.focused(cx) {
12776 hide_hover(self, cx);
12777 }
12778
12779 self.hide_context_menu(cx);
12780 cx.emit(EditorEvent::Blurred);
12781 cx.notify();
12782 }
12783
12784 pub fn register_action<A: Action>(
12785 &mut self,
12786 listener: impl Fn(&A, &mut WindowContext) + 'static,
12787 ) -> Subscription {
12788 let id = self.next_editor_action_id.post_inc();
12789 let listener = Arc::new(listener);
12790 self.editor_actions.borrow_mut().insert(
12791 id,
12792 Box::new(move |cx| {
12793 let cx = cx.window_context();
12794 let listener = listener.clone();
12795 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12796 let action = action.downcast_ref().unwrap();
12797 if phase == DispatchPhase::Bubble {
12798 listener(action, cx)
12799 }
12800 })
12801 }),
12802 );
12803
12804 let editor_actions = self.editor_actions.clone();
12805 Subscription::new(move || {
12806 editor_actions.borrow_mut().remove(&id);
12807 })
12808 }
12809
12810 pub fn file_header_size(&self) -> u32 {
12811 self.file_header_size
12812 }
12813
12814 pub fn revert(
12815 &mut self,
12816 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12817 cx: &mut ViewContext<Self>,
12818 ) {
12819 self.buffer().update(cx, |multi_buffer, cx| {
12820 for (buffer_id, changes) in revert_changes {
12821 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12822 buffer.update(cx, |buffer, cx| {
12823 buffer.edit(
12824 changes.into_iter().map(|(range, text)| {
12825 (range, text.to_string().map(Arc::<str>::from))
12826 }),
12827 None,
12828 cx,
12829 );
12830 });
12831 }
12832 }
12833 });
12834 self.change_selections(None, cx, |selections| selections.refresh());
12835 }
12836
12837 pub fn to_pixel_point(
12838 &mut self,
12839 source: multi_buffer::Anchor,
12840 editor_snapshot: &EditorSnapshot,
12841 cx: &mut ViewContext<Self>,
12842 ) -> Option<gpui::Point<Pixels>> {
12843 let source_point = source.to_display_point(editor_snapshot);
12844 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12845 }
12846
12847 pub fn display_to_pixel_point(
12848 &mut self,
12849 source: DisplayPoint,
12850 editor_snapshot: &EditorSnapshot,
12851 cx: &mut ViewContext<Self>,
12852 ) -> Option<gpui::Point<Pixels>> {
12853 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12854 let text_layout_details = self.text_layout_details(cx);
12855 let scroll_top = text_layout_details
12856 .scroll_anchor
12857 .scroll_position(editor_snapshot)
12858 .y;
12859
12860 if source.row().as_f32() < scroll_top.floor() {
12861 return None;
12862 }
12863 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12864 let source_y = line_height * (source.row().as_f32() - scroll_top);
12865 Some(gpui::Point::new(source_x, source_y))
12866 }
12867
12868 pub fn has_active_completions_menu(&self) -> bool {
12869 self.context_menu.read().as_ref().map_or(false, |menu| {
12870 menu.visible() && matches!(menu, ContextMenu::Completions(_))
12871 })
12872 }
12873
12874 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12875 self.addons
12876 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
12877 }
12878
12879 pub fn unregister_addon<T: Addon>(&mut self) {
12880 self.addons.remove(&std::any::TypeId::of::<T>());
12881 }
12882
12883 pub fn addon<T: Addon>(&self) -> Option<&T> {
12884 let type_id = std::any::TypeId::of::<T>();
12885 self.addons
12886 .get(&type_id)
12887 .and_then(|item| item.to_any().downcast_ref::<T>())
12888 }
12889}
12890
12891fn hunks_for_selections(
12892 multi_buffer_snapshot: &MultiBufferSnapshot,
12893 selections: &[Selection<Anchor>],
12894) -> Vec<MultiBufferDiffHunk> {
12895 let buffer_rows_for_selections = selections.iter().map(|selection| {
12896 let head = selection.head();
12897 let tail = selection.tail();
12898 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
12899 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
12900 if start > end {
12901 end..start
12902 } else {
12903 start..end
12904 }
12905 });
12906
12907 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
12908}
12909
12910pub fn hunks_for_rows(
12911 rows: impl Iterator<Item = Range<MultiBufferRow>>,
12912 multi_buffer_snapshot: &MultiBufferSnapshot,
12913) -> Vec<MultiBufferDiffHunk> {
12914 let mut hunks = Vec::new();
12915 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
12916 HashMap::default();
12917 for selected_multi_buffer_rows in rows {
12918 let query_rows =
12919 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
12920 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
12921 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
12922 // when the caret is just above or just below the deleted hunk.
12923 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
12924 let related_to_selection = if allow_adjacent {
12925 hunk.row_range.overlaps(&query_rows)
12926 || hunk.row_range.start == query_rows.end
12927 || hunk.row_range.end == query_rows.start
12928 } else {
12929 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
12930 // `hunk.row_range` is exclusive (e.g. [2..3] means 2nd row is selected)
12931 hunk.row_range.overlaps(&selected_multi_buffer_rows)
12932 || selected_multi_buffer_rows.end == hunk.row_range.start
12933 };
12934 if related_to_selection {
12935 if !processed_buffer_rows
12936 .entry(hunk.buffer_id)
12937 .or_default()
12938 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
12939 {
12940 continue;
12941 }
12942 hunks.push(hunk);
12943 }
12944 }
12945 }
12946
12947 hunks
12948}
12949
12950pub trait CollaborationHub {
12951 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
12952 fn user_participant_indices<'a>(
12953 &self,
12954 cx: &'a AppContext,
12955 ) -> &'a HashMap<u64, ParticipantIndex>;
12956 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
12957}
12958
12959impl CollaborationHub for Model<Project> {
12960 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
12961 self.read(cx).collaborators()
12962 }
12963
12964 fn user_participant_indices<'a>(
12965 &self,
12966 cx: &'a AppContext,
12967 ) -> &'a HashMap<u64, ParticipantIndex> {
12968 self.read(cx).user_store().read(cx).participant_indices()
12969 }
12970
12971 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
12972 let this = self.read(cx);
12973 let user_ids = this.collaborators().values().map(|c| c.user_id);
12974 this.user_store().read_with(cx, |user_store, cx| {
12975 user_store.participant_names(user_ids, cx)
12976 })
12977 }
12978}
12979
12980pub trait SemanticsProvider {
12981 fn hover(
12982 &self,
12983 buffer: &Model<Buffer>,
12984 position: text::Anchor,
12985 cx: &mut AppContext,
12986 ) -> Option<Task<Vec<project::Hover>>>;
12987
12988 fn inlay_hints(
12989 &self,
12990 buffer_handle: Model<Buffer>,
12991 range: Range<text::Anchor>,
12992 cx: &mut AppContext,
12993 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
12994
12995 fn resolve_inlay_hint(
12996 &self,
12997 hint: InlayHint,
12998 buffer_handle: Model<Buffer>,
12999 server_id: LanguageServerId,
13000 cx: &mut AppContext,
13001 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13002
13003 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13004
13005 fn document_highlights(
13006 &self,
13007 buffer: &Model<Buffer>,
13008 position: text::Anchor,
13009 cx: &mut AppContext,
13010 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13011
13012 fn definitions(
13013 &self,
13014 buffer: &Model<Buffer>,
13015 position: text::Anchor,
13016 kind: GotoDefinitionKind,
13017 cx: &mut AppContext,
13018 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13019
13020 fn range_for_rename(
13021 &self,
13022 buffer: &Model<Buffer>,
13023 position: text::Anchor,
13024 cx: &mut AppContext,
13025 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13026
13027 fn perform_rename(
13028 &self,
13029 buffer: &Model<Buffer>,
13030 position: text::Anchor,
13031 new_name: String,
13032 cx: &mut AppContext,
13033 ) -> Option<Task<Result<ProjectTransaction>>>;
13034}
13035
13036pub trait CompletionProvider {
13037 fn completions(
13038 &self,
13039 buffer: &Model<Buffer>,
13040 buffer_position: text::Anchor,
13041 trigger: CompletionContext,
13042 cx: &mut ViewContext<Editor>,
13043 ) -> Task<Result<Vec<Completion>>>;
13044
13045 fn resolve_completions(
13046 &self,
13047 buffer: Model<Buffer>,
13048 completion_indices: Vec<usize>,
13049 completions: Arc<RwLock<Box<[Completion]>>>,
13050 cx: &mut ViewContext<Editor>,
13051 ) -> Task<Result<bool>>;
13052
13053 fn apply_additional_edits_for_completion(
13054 &self,
13055 buffer: Model<Buffer>,
13056 completion: Completion,
13057 push_to_history: bool,
13058 cx: &mut ViewContext<Editor>,
13059 ) -> Task<Result<Option<language::Transaction>>>;
13060
13061 fn is_completion_trigger(
13062 &self,
13063 buffer: &Model<Buffer>,
13064 position: language::Anchor,
13065 text: &str,
13066 trigger_in_words: bool,
13067 cx: &mut ViewContext<Editor>,
13068 ) -> bool;
13069
13070 fn sort_completions(&self) -> bool {
13071 true
13072 }
13073}
13074
13075pub trait CodeActionProvider {
13076 fn code_actions(
13077 &self,
13078 buffer: &Model<Buffer>,
13079 range: Range<text::Anchor>,
13080 cx: &mut WindowContext,
13081 ) -> Task<Result<Vec<CodeAction>>>;
13082
13083 fn apply_code_action(
13084 &self,
13085 buffer_handle: Model<Buffer>,
13086 action: CodeAction,
13087 excerpt_id: ExcerptId,
13088 push_to_history: bool,
13089 cx: &mut WindowContext,
13090 ) -> Task<Result<ProjectTransaction>>;
13091}
13092
13093impl CodeActionProvider for Model<Project> {
13094 fn code_actions(
13095 &self,
13096 buffer: &Model<Buffer>,
13097 range: Range<text::Anchor>,
13098 cx: &mut WindowContext,
13099 ) -> Task<Result<Vec<CodeAction>>> {
13100 self.update(cx, |project, cx| project.code_actions(buffer, range, cx))
13101 }
13102
13103 fn apply_code_action(
13104 &self,
13105 buffer_handle: Model<Buffer>,
13106 action: CodeAction,
13107 _excerpt_id: ExcerptId,
13108 push_to_history: bool,
13109 cx: &mut WindowContext,
13110 ) -> Task<Result<ProjectTransaction>> {
13111 self.update(cx, |project, cx| {
13112 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13113 })
13114 }
13115}
13116
13117fn snippet_completions(
13118 project: &Project,
13119 buffer: &Model<Buffer>,
13120 buffer_position: text::Anchor,
13121 cx: &mut AppContext,
13122) -> Vec<Completion> {
13123 let language = buffer.read(cx).language_at(buffer_position);
13124 let language_name = language.as_ref().map(|language| language.lsp_id());
13125 let snippet_store = project.snippets().read(cx);
13126 let snippets = snippet_store.snippets_for(language_name, cx);
13127
13128 if snippets.is_empty() {
13129 return vec![];
13130 }
13131 let snapshot = buffer.read(cx).text_snapshot();
13132 let chars = snapshot.reversed_chars_for_range(text::Anchor::MIN..buffer_position);
13133
13134 let scope = language.map(|language| language.default_scope());
13135 let classifier = CharClassifier::new(scope).for_completion(true);
13136 let mut last_word = chars
13137 .take_while(|c| classifier.is_word(*c))
13138 .collect::<String>();
13139 last_word = last_word.chars().rev().collect();
13140 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13141 let to_lsp = |point: &text::Anchor| {
13142 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13143 point_to_lsp(end)
13144 };
13145 let lsp_end = to_lsp(&buffer_position);
13146 snippets
13147 .into_iter()
13148 .filter_map(|snippet| {
13149 let matching_prefix = snippet
13150 .prefix
13151 .iter()
13152 .find(|prefix| prefix.starts_with(&last_word))?;
13153 let start = as_offset - last_word.len();
13154 let start = snapshot.anchor_before(start);
13155 let range = start..buffer_position;
13156 let lsp_start = to_lsp(&start);
13157 let lsp_range = lsp::Range {
13158 start: lsp_start,
13159 end: lsp_end,
13160 };
13161 Some(Completion {
13162 old_range: range,
13163 new_text: snippet.body.clone(),
13164 label: CodeLabel {
13165 text: matching_prefix.clone(),
13166 runs: vec![],
13167 filter_range: 0..matching_prefix.len(),
13168 },
13169 server_id: LanguageServerId(usize::MAX),
13170 documentation: snippet.description.clone().map(Documentation::SingleLine),
13171 lsp_completion: lsp::CompletionItem {
13172 label: snippet.prefix.first().unwrap().clone(),
13173 kind: Some(CompletionItemKind::SNIPPET),
13174 label_details: snippet.description.as_ref().map(|description| {
13175 lsp::CompletionItemLabelDetails {
13176 detail: Some(description.clone()),
13177 description: None,
13178 }
13179 }),
13180 insert_text_format: Some(InsertTextFormat::SNIPPET),
13181 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13182 lsp::InsertReplaceEdit {
13183 new_text: snippet.body.clone(),
13184 insert: lsp_range,
13185 replace: lsp_range,
13186 },
13187 )),
13188 filter_text: Some(snippet.body.clone()),
13189 sort_text: Some(char::MAX.to_string()),
13190 ..Default::default()
13191 },
13192 confirm: None,
13193 })
13194 })
13195 .collect()
13196}
13197
13198impl CompletionProvider for Model<Project> {
13199 fn completions(
13200 &self,
13201 buffer: &Model<Buffer>,
13202 buffer_position: text::Anchor,
13203 options: CompletionContext,
13204 cx: &mut ViewContext<Editor>,
13205 ) -> Task<Result<Vec<Completion>>> {
13206 self.update(cx, |project, cx| {
13207 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13208 let project_completions = project.completions(buffer, buffer_position, options, cx);
13209 cx.background_executor().spawn(async move {
13210 let mut completions = project_completions.await?;
13211 //let snippets = snippets.into_iter().;
13212 completions.extend(snippets);
13213 Ok(completions)
13214 })
13215 })
13216 }
13217
13218 fn resolve_completions(
13219 &self,
13220 buffer: Model<Buffer>,
13221 completion_indices: Vec<usize>,
13222 completions: Arc<RwLock<Box<[Completion]>>>,
13223 cx: &mut ViewContext<Editor>,
13224 ) -> Task<Result<bool>> {
13225 self.update(cx, |project, cx| {
13226 project.resolve_completions(buffer, completion_indices, completions, cx)
13227 })
13228 }
13229
13230 fn apply_additional_edits_for_completion(
13231 &self,
13232 buffer: Model<Buffer>,
13233 completion: Completion,
13234 push_to_history: bool,
13235 cx: &mut ViewContext<Editor>,
13236 ) -> Task<Result<Option<language::Transaction>>> {
13237 self.update(cx, |project, cx| {
13238 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13239 })
13240 }
13241
13242 fn is_completion_trigger(
13243 &self,
13244 buffer: &Model<Buffer>,
13245 position: language::Anchor,
13246 text: &str,
13247 trigger_in_words: bool,
13248 cx: &mut ViewContext<Editor>,
13249 ) -> bool {
13250 if !EditorSettings::get_global(cx).show_completions_on_input {
13251 return false;
13252 }
13253
13254 let mut chars = text.chars();
13255 let char = if let Some(char) = chars.next() {
13256 char
13257 } else {
13258 return false;
13259 };
13260 if chars.next().is_some() {
13261 return false;
13262 }
13263
13264 let buffer = buffer.read(cx);
13265 let classifier = buffer
13266 .snapshot()
13267 .char_classifier_at(position)
13268 .for_completion(true);
13269 if trigger_in_words && classifier.is_word(char) {
13270 return true;
13271 }
13272
13273 buffer
13274 .completion_triggers()
13275 .iter()
13276 .any(|string| string == text)
13277 }
13278}
13279
13280impl SemanticsProvider for Model<Project> {
13281 fn hover(
13282 &self,
13283 buffer: &Model<Buffer>,
13284 position: text::Anchor,
13285 cx: &mut AppContext,
13286 ) -> Option<Task<Vec<project::Hover>>> {
13287 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13288 }
13289
13290 fn document_highlights(
13291 &self,
13292 buffer: &Model<Buffer>,
13293 position: text::Anchor,
13294 cx: &mut AppContext,
13295 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13296 Some(self.update(cx, |project, cx| {
13297 project.document_highlights(buffer, position, cx)
13298 }))
13299 }
13300
13301 fn definitions(
13302 &self,
13303 buffer: &Model<Buffer>,
13304 position: text::Anchor,
13305 kind: GotoDefinitionKind,
13306 cx: &mut AppContext,
13307 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13308 Some(self.update(cx, |project, cx| match kind {
13309 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13310 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13311 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13312 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13313 }))
13314 }
13315
13316 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13317 // TODO: make this work for remote projects
13318 self.read(cx)
13319 .language_servers_for_buffer(buffer.read(cx), cx)
13320 .any(
13321 |(_, server)| match server.capabilities().inlay_hint_provider {
13322 Some(lsp::OneOf::Left(enabled)) => enabled,
13323 Some(lsp::OneOf::Right(_)) => true,
13324 None => false,
13325 },
13326 )
13327 }
13328
13329 fn inlay_hints(
13330 &self,
13331 buffer_handle: Model<Buffer>,
13332 range: Range<text::Anchor>,
13333 cx: &mut AppContext,
13334 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13335 Some(self.update(cx, |project, cx| {
13336 project.inlay_hints(buffer_handle, range, cx)
13337 }))
13338 }
13339
13340 fn resolve_inlay_hint(
13341 &self,
13342 hint: InlayHint,
13343 buffer_handle: Model<Buffer>,
13344 server_id: LanguageServerId,
13345 cx: &mut AppContext,
13346 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13347 Some(self.update(cx, |project, cx| {
13348 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13349 }))
13350 }
13351
13352 fn range_for_rename(
13353 &self,
13354 buffer: &Model<Buffer>,
13355 position: text::Anchor,
13356 cx: &mut AppContext,
13357 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13358 Some(self.update(cx, |project, cx| {
13359 project.prepare_rename(buffer.clone(), position, cx)
13360 }))
13361 }
13362
13363 fn perform_rename(
13364 &self,
13365 buffer: &Model<Buffer>,
13366 position: text::Anchor,
13367 new_name: String,
13368 cx: &mut AppContext,
13369 ) -> Option<Task<Result<ProjectTransaction>>> {
13370 Some(self.update(cx, |project, cx| {
13371 project.perform_rename(buffer.clone(), position, new_name, cx)
13372 }))
13373 }
13374}
13375
13376fn inlay_hint_settings(
13377 location: Anchor,
13378 snapshot: &MultiBufferSnapshot,
13379 cx: &mut ViewContext<'_, Editor>,
13380) -> InlayHintSettings {
13381 let file = snapshot.file_at(location);
13382 let language = snapshot.language_at(location);
13383 let settings = all_language_settings(file, cx);
13384 settings
13385 .language(language.map(|l| l.name()).as_ref())
13386 .inlay_hints
13387}
13388
13389fn consume_contiguous_rows(
13390 contiguous_row_selections: &mut Vec<Selection<Point>>,
13391 selection: &Selection<Point>,
13392 display_map: &DisplaySnapshot,
13393 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
13394) -> (MultiBufferRow, MultiBufferRow) {
13395 contiguous_row_selections.push(selection.clone());
13396 let start_row = MultiBufferRow(selection.start.row);
13397 let mut end_row = ending_row(selection, display_map);
13398
13399 while let Some(next_selection) = selections.peek() {
13400 if next_selection.start.row <= end_row.0 {
13401 end_row = ending_row(next_selection, display_map);
13402 contiguous_row_selections.push(selections.next().unwrap().clone());
13403 } else {
13404 break;
13405 }
13406 }
13407 (start_row, end_row)
13408}
13409
13410fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13411 if next_selection.end.column > 0 || next_selection.is_empty() {
13412 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13413 } else {
13414 MultiBufferRow(next_selection.end.row)
13415 }
13416}
13417
13418impl EditorSnapshot {
13419 pub fn remote_selections_in_range<'a>(
13420 &'a self,
13421 range: &'a Range<Anchor>,
13422 collaboration_hub: &dyn CollaborationHub,
13423 cx: &'a AppContext,
13424 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13425 let participant_names = collaboration_hub.user_names(cx);
13426 let participant_indices = collaboration_hub.user_participant_indices(cx);
13427 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13428 let collaborators_by_replica_id = collaborators_by_peer_id
13429 .iter()
13430 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13431 .collect::<HashMap<_, _>>();
13432 self.buffer_snapshot
13433 .selections_in_range(range, false)
13434 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13435 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13436 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13437 let user_name = participant_names.get(&collaborator.user_id).cloned();
13438 Some(RemoteSelection {
13439 replica_id,
13440 selection,
13441 cursor_shape,
13442 line_mode,
13443 participant_index,
13444 peer_id: collaborator.peer_id,
13445 user_name,
13446 })
13447 })
13448 }
13449
13450 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13451 self.display_snapshot.buffer_snapshot.language_at(position)
13452 }
13453
13454 pub fn is_focused(&self) -> bool {
13455 self.is_focused
13456 }
13457
13458 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13459 self.placeholder_text.as_ref()
13460 }
13461
13462 pub fn scroll_position(&self) -> gpui::Point<f32> {
13463 self.scroll_anchor.scroll_position(&self.display_snapshot)
13464 }
13465
13466 fn gutter_dimensions(
13467 &self,
13468 font_id: FontId,
13469 font_size: Pixels,
13470 em_width: Pixels,
13471 em_advance: Pixels,
13472 max_line_number_width: Pixels,
13473 cx: &AppContext,
13474 ) -> GutterDimensions {
13475 if !self.show_gutter {
13476 return GutterDimensions::default();
13477 }
13478 let descent = cx.text_system().descent(font_id, font_size);
13479
13480 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13481 matches!(
13482 ProjectSettings::get_global(cx).git.git_gutter,
13483 Some(GitGutterSetting::TrackedFiles)
13484 )
13485 });
13486 let gutter_settings = EditorSettings::get_global(cx).gutter;
13487 let show_line_numbers = self
13488 .show_line_numbers
13489 .unwrap_or(gutter_settings.line_numbers);
13490 let line_gutter_width = if show_line_numbers {
13491 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13492 let min_width_for_number_on_gutter = em_advance * 4.0;
13493 max_line_number_width.max(min_width_for_number_on_gutter)
13494 } else {
13495 0.0.into()
13496 };
13497
13498 let show_code_actions = self
13499 .show_code_actions
13500 .unwrap_or(gutter_settings.code_actions);
13501
13502 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13503
13504 let git_blame_entries_width =
13505 self.git_blame_gutter_max_author_length
13506 .map(|max_author_length| {
13507 // Length of the author name, but also space for the commit hash,
13508 // the spacing and the timestamp.
13509 let max_char_count = max_author_length
13510 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13511 + 7 // length of commit sha
13512 + 14 // length of max relative timestamp ("60 minutes ago")
13513 + 4; // gaps and margins
13514
13515 em_advance * max_char_count
13516 });
13517
13518 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13519 left_padding += if show_code_actions || show_runnables {
13520 em_width * 3.0
13521 } else if show_git_gutter && show_line_numbers {
13522 em_width * 2.0
13523 } else if show_git_gutter || show_line_numbers {
13524 em_width
13525 } else {
13526 px(0.)
13527 };
13528
13529 let right_padding = if gutter_settings.folds && show_line_numbers {
13530 em_width * 4.0
13531 } else if gutter_settings.folds {
13532 em_width * 3.0
13533 } else if show_line_numbers {
13534 em_width
13535 } else {
13536 px(0.)
13537 };
13538
13539 GutterDimensions {
13540 left_padding,
13541 right_padding,
13542 width: line_gutter_width + left_padding + right_padding,
13543 margin: -descent,
13544 git_blame_entries_width,
13545 }
13546 }
13547
13548 pub fn render_fold_toggle(
13549 &self,
13550 buffer_row: MultiBufferRow,
13551 row_contains_cursor: bool,
13552 editor: View<Editor>,
13553 cx: &mut WindowContext,
13554 ) -> Option<AnyElement> {
13555 let folded = self.is_line_folded(buffer_row);
13556
13557 if let Some(crease) = self
13558 .crease_snapshot
13559 .query_row(buffer_row, &self.buffer_snapshot)
13560 {
13561 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
13562 if folded {
13563 editor.update(cx, |editor, cx| {
13564 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
13565 });
13566 } else {
13567 editor.update(cx, |editor, cx| {
13568 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
13569 });
13570 }
13571 });
13572
13573 Some((crease.render_toggle)(
13574 buffer_row,
13575 folded,
13576 toggle_callback,
13577 cx,
13578 ))
13579 } else if folded
13580 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
13581 {
13582 Some(
13583 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
13584 .selected(folded)
13585 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
13586 if folded {
13587 this.unfold_at(&UnfoldAt { buffer_row }, cx);
13588 } else {
13589 this.fold_at(&FoldAt { buffer_row }, cx);
13590 }
13591 }))
13592 .into_any_element(),
13593 )
13594 } else {
13595 None
13596 }
13597 }
13598
13599 pub fn render_crease_trailer(
13600 &self,
13601 buffer_row: MultiBufferRow,
13602 cx: &mut WindowContext,
13603 ) -> Option<AnyElement> {
13604 let folded = self.is_line_folded(buffer_row);
13605 let crease = self
13606 .crease_snapshot
13607 .query_row(buffer_row, &self.buffer_snapshot)?;
13608 Some((crease.render_trailer)(buffer_row, folded, cx))
13609 }
13610}
13611
13612impl Deref for EditorSnapshot {
13613 type Target = DisplaySnapshot;
13614
13615 fn deref(&self) -> &Self::Target {
13616 &self.display_snapshot
13617 }
13618}
13619
13620#[derive(Clone, Debug, PartialEq, Eq)]
13621pub enum EditorEvent {
13622 InputIgnored {
13623 text: Arc<str>,
13624 },
13625 InputHandled {
13626 utf16_range_to_replace: Option<Range<isize>>,
13627 text: Arc<str>,
13628 },
13629 ExcerptsAdded {
13630 buffer: Model<Buffer>,
13631 predecessor: ExcerptId,
13632 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
13633 },
13634 ExcerptsRemoved {
13635 ids: Vec<ExcerptId>,
13636 },
13637 ExcerptsEdited {
13638 ids: Vec<ExcerptId>,
13639 },
13640 ExcerptsExpanded {
13641 ids: Vec<ExcerptId>,
13642 },
13643 BufferEdited,
13644 Edited {
13645 transaction_id: clock::Lamport,
13646 },
13647 Reparsed(BufferId),
13648 Focused,
13649 FocusedIn,
13650 Blurred,
13651 DirtyChanged,
13652 Saved,
13653 TitleChanged,
13654 DiffBaseChanged,
13655 SelectionsChanged {
13656 local: bool,
13657 },
13658 ScrollPositionChanged {
13659 local: bool,
13660 autoscroll: bool,
13661 },
13662 Closed,
13663 TransactionUndone {
13664 transaction_id: clock::Lamport,
13665 },
13666 TransactionBegun {
13667 transaction_id: clock::Lamport,
13668 },
13669 Reloaded,
13670 CursorShapeChanged,
13671}
13672
13673impl EventEmitter<EditorEvent> for Editor {}
13674
13675impl FocusableView for Editor {
13676 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
13677 self.focus_handle.clone()
13678 }
13679}
13680
13681impl Render for Editor {
13682 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
13683 let settings = ThemeSettings::get_global(cx);
13684
13685 let text_style = match self.mode {
13686 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
13687 color: cx.theme().colors().editor_foreground,
13688 font_family: settings.ui_font.family.clone(),
13689 font_features: settings.ui_font.features.clone(),
13690 font_fallbacks: settings.ui_font.fallbacks.clone(),
13691 font_size: rems(0.875).into(),
13692 font_weight: settings.ui_font.weight,
13693 line_height: relative(settings.buffer_line_height.value()),
13694 ..Default::default()
13695 },
13696 EditorMode::Full => TextStyle {
13697 color: cx.theme().colors().editor_foreground,
13698 font_family: settings.buffer_font.family.clone(),
13699 font_features: settings.buffer_font.features.clone(),
13700 font_fallbacks: settings.buffer_font.fallbacks.clone(),
13701 font_size: settings.buffer_font_size(cx).into(),
13702 font_weight: settings.buffer_font.weight,
13703 line_height: relative(settings.buffer_line_height.value()),
13704 ..Default::default()
13705 },
13706 };
13707
13708 let background = match self.mode {
13709 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
13710 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
13711 EditorMode::Full => cx.theme().colors().editor_background,
13712 };
13713
13714 EditorElement::new(
13715 cx.view(),
13716 EditorStyle {
13717 background,
13718 local_player: cx.theme().players().local(),
13719 text: text_style,
13720 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
13721 syntax: cx.theme().syntax().clone(),
13722 status: cx.theme().status().clone(),
13723 inlay_hints_style: make_inlay_hints_style(cx),
13724 suggestions_style: HighlightStyle {
13725 color: Some(cx.theme().status().predictive),
13726 ..HighlightStyle::default()
13727 },
13728 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
13729 },
13730 )
13731 }
13732}
13733
13734impl ViewInputHandler for Editor {
13735 fn text_for_range(
13736 &mut self,
13737 range_utf16: Range<usize>,
13738 cx: &mut ViewContext<Self>,
13739 ) -> Option<String> {
13740 Some(
13741 self.buffer
13742 .read(cx)
13743 .read(cx)
13744 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
13745 .collect(),
13746 )
13747 }
13748
13749 fn selected_text_range(
13750 &mut self,
13751 ignore_disabled_input: bool,
13752 cx: &mut ViewContext<Self>,
13753 ) -> Option<UTF16Selection> {
13754 // Prevent the IME menu from appearing when holding down an alphabetic key
13755 // while input is disabled.
13756 if !ignore_disabled_input && !self.input_enabled {
13757 return None;
13758 }
13759
13760 let selection = self.selections.newest::<OffsetUtf16>(cx);
13761 let range = selection.range();
13762
13763 Some(UTF16Selection {
13764 range: range.start.0..range.end.0,
13765 reversed: selection.reversed,
13766 })
13767 }
13768
13769 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
13770 let snapshot = self.buffer.read(cx).read(cx);
13771 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
13772 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
13773 }
13774
13775 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
13776 self.clear_highlights::<InputComposition>(cx);
13777 self.ime_transaction.take();
13778 }
13779
13780 fn replace_text_in_range(
13781 &mut self,
13782 range_utf16: Option<Range<usize>>,
13783 text: &str,
13784 cx: &mut ViewContext<Self>,
13785 ) {
13786 if !self.input_enabled {
13787 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13788 return;
13789 }
13790
13791 self.transact(cx, |this, cx| {
13792 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
13793 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13794 Some(this.selection_replacement_ranges(range_utf16, cx))
13795 } else {
13796 this.marked_text_ranges(cx)
13797 };
13798
13799 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
13800 let newest_selection_id = this.selections.newest_anchor().id;
13801 this.selections
13802 .all::<OffsetUtf16>(cx)
13803 .iter()
13804 .zip(ranges_to_replace.iter())
13805 .find_map(|(selection, range)| {
13806 if selection.id == newest_selection_id {
13807 Some(
13808 (range.start.0 as isize - selection.head().0 as isize)
13809 ..(range.end.0 as isize - selection.head().0 as isize),
13810 )
13811 } else {
13812 None
13813 }
13814 })
13815 });
13816
13817 cx.emit(EditorEvent::InputHandled {
13818 utf16_range_to_replace: range_to_replace,
13819 text: text.into(),
13820 });
13821
13822 if let Some(new_selected_ranges) = new_selected_ranges {
13823 this.change_selections(None, cx, |selections| {
13824 selections.select_ranges(new_selected_ranges)
13825 });
13826 this.backspace(&Default::default(), cx);
13827 }
13828
13829 this.handle_input(text, cx);
13830 });
13831
13832 if let Some(transaction) = self.ime_transaction {
13833 self.buffer.update(cx, |buffer, cx| {
13834 buffer.group_until_transaction(transaction, cx);
13835 });
13836 }
13837
13838 self.unmark_text(cx);
13839 }
13840
13841 fn replace_and_mark_text_in_range(
13842 &mut self,
13843 range_utf16: Option<Range<usize>>,
13844 text: &str,
13845 new_selected_range_utf16: Option<Range<usize>>,
13846 cx: &mut ViewContext<Self>,
13847 ) {
13848 if !self.input_enabled {
13849 return;
13850 }
13851
13852 let transaction = self.transact(cx, |this, cx| {
13853 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
13854 let snapshot = this.buffer.read(cx).read(cx);
13855 if let Some(relative_range_utf16) = range_utf16.as_ref() {
13856 for marked_range in &mut marked_ranges {
13857 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
13858 marked_range.start.0 += relative_range_utf16.start;
13859 marked_range.start =
13860 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
13861 marked_range.end =
13862 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
13863 }
13864 }
13865 Some(marked_ranges)
13866 } else if let Some(range_utf16) = range_utf16 {
13867 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13868 Some(this.selection_replacement_ranges(range_utf16, cx))
13869 } else {
13870 None
13871 };
13872
13873 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
13874 let newest_selection_id = this.selections.newest_anchor().id;
13875 this.selections
13876 .all::<OffsetUtf16>(cx)
13877 .iter()
13878 .zip(ranges_to_replace.iter())
13879 .find_map(|(selection, range)| {
13880 if selection.id == newest_selection_id {
13881 Some(
13882 (range.start.0 as isize - selection.head().0 as isize)
13883 ..(range.end.0 as isize - selection.head().0 as isize),
13884 )
13885 } else {
13886 None
13887 }
13888 })
13889 });
13890
13891 cx.emit(EditorEvent::InputHandled {
13892 utf16_range_to_replace: range_to_replace,
13893 text: text.into(),
13894 });
13895
13896 if let Some(ranges) = ranges_to_replace {
13897 this.change_selections(None, cx, |s| s.select_ranges(ranges));
13898 }
13899
13900 let marked_ranges = {
13901 let snapshot = this.buffer.read(cx).read(cx);
13902 this.selections
13903 .disjoint_anchors()
13904 .iter()
13905 .map(|selection| {
13906 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
13907 })
13908 .collect::<Vec<_>>()
13909 };
13910
13911 if text.is_empty() {
13912 this.unmark_text(cx);
13913 } else {
13914 this.highlight_text::<InputComposition>(
13915 marked_ranges.clone(),
13916 HighlightStyle {
13917 underline: Some(UnderlineStyle {
13918 thickness: px(1.),
13919 color: None,
13920 wavy: false,
13921 }),
13922 ..Default::default()
13923 },
13924 cx,
13925 );
13926 }
13927
13928 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
13929 let use_autoclose = this.use_autoclose;
13930 let use_auto_surround = this.use_auto_surround;
13931 this.set_use_autoclose(false);
13932 this.set_use_auto_surround(false);
13933 this.handle_input(text, cx);
13934 this.set_use_autoclose(use_autoclose);
13935 this.set_use_auto_surround(use_auto_surround);
13936
13937 if let Some(new_selected_range) = new_selected_range_utf16 {
13938 let snapshot = this.buffer.read(cx).read(cx);
13939 let new_selected_ranges = marked_ranges
13940 .into_iter()
13941 .map(|marked_range| {
13942 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
13943 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
13944 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
13945 snapshot.clip_offset_utf16(new_start, Bias::Left)
13946 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
13947 })
13948 .collect::<Vec<_>>();
13949
13950 drop(snapshot);
13951 this.change_selections(None, cx, |selections| {
13952 selections.select_ranges(new_selected_ranges)
13953 });
13954 }
13955 });
13956
13957 self.ime_transaction = self.ime_transaction.or(transaction);
13958 if let Some(transaction) = self.ime_transaction {
13959 self.buffer.update(cx, |buffer, cx| {
13960 buffer.group_until_transaction(transaction, cx);
13961 });
13962 }
13963
13964 if self.text_highlights::<InputComposition>(cx).is_none() {
13965 self.ime_transaction.take();
13966 }
13967 }
13968
13969 fn bounds_for_range(
13970 &mut self,
13971 range_utf16: Range<usize>,
13972 element_bounds: gpui::Bounds<Pixels>,
13973 cx: &mut ViewContext<Self>,
13974 ) -> Option<gpui::Bounds<Pixels>> {
13975 let text_layout_details = self.text_layout_details(cx);
13976 let style = &text_layout_details.editor_style;
13977 let font_id = cx.text_system().resolve_font(&style.text.font());
13978 let font_size = style.text.font_size.to_pixels(cx.rem_size());
13979 let line_height = style.text.line_height_in_pixels(cx.rem_size());
13980
13981 let em_width = cx
13982 .text_system()
13983 .typographic_bounds(font_id, font_size, 'm')
13984 .unwrap()
13985 .size
13986 .width;
13987
13988 let snapshot = self.snapshot(cx);
13989 let scroll_position = snapshot.scroll_position();
13990 let scroll_left = scroll_position.x * em_width;
13991
13992 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
13993 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
13994 + self.gutter_dimensions.width;
13995 let y = line_height * (start.row().as_f32() - scroll_position.y);
13996
13997 Some(Bounds {
13998 origin: element_bounds.origin + point(x, y),
13999 size: size(em_width, line_height),
14000 })
14001 }
14002}
14003
14004trait SelectionExt {
14005 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14006 fn spanned_rows(
14007 &self,
14008 include_end_if_at_line_start: bool,
14009 map: &DisplaySnapshot,
14010 ) -> Range<MultiBufferRow>;
14011}
14012
14013impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14014 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14015 let start = self
14016 .start
14017 .to_point(&map.buffer_snapshot)
14018 .to_display_point(map);
14019 let end = self
14020 .end
14021 .to_point(&map.buffer_snapshot)
14022 .to_display_point(map);
14023 if self.reversed {
14024 end..start
14025 } else {
14026 start..end
14027 }
14028 }
14029
14030 fn spanned_rows(
14031 &self,
14032 include_end_if_at_line_start: bool,
14033 map: &DisplaySnapshot,
14034 ) -> Range<MultiBufferRow> {
14035 let start = self.start.to_point(&map.buffer_snapshot);
14036 let mut end = self.end.to_point(&map.buffer_snapshot);
14037 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14038 end.row -= 1;
14039 }
14040
14041 let buffer_start = map.prev_line_boundary(start).0;
14042 let buffer_end = map.next_line_boundary(end).0;
14043 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14044 }
14045}
14046
14047impl<T: InvalidationRegion> InvalidationStack<T> {
14048 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14049 where
14050 S: Clone + ToOffset,
14051 {
14052 while let Some(region) = self.last() {
14053 let all_selections_inside_invalidation_ranges =
14054 if selections.len() == region.ranges().len() {
14055 selections
14056 .iter()
14057 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14058 .all(|(selection, invalidation_range)| {
14059 let head = selection.head().to_offset(buffer);
14060 invalidation_range.start <= head && invalidation_range.end >= head
14061 })
14062 } else {
14063 false
14064 };
14065
14066 if all_selections_inside_invalidation_ranges {
14067 break;
14068 } else {
14069 self.pop();
14070 }
14071 }
14072 }
14073}
14074
14075impl<T> Default for InvalidationStack<T> {
14076 fn default() -> Self {
14077 Self(Default::default())
14078 }
14079}
14080
14081impl<T> Deref for InvalidationStack<T> {
14082 type Target = Vec<T>;
14083
14084 fn deref(&self) -> &Self::Target {
14085 &self.0
14086 }
14087}
14088
14089impl<T> DerefMut for InvalidationStack<T> {
14090 fn deref_mut(&mut self) -> &mut Self::Target {
14091 &mut self.0
14092 }
14093}
14094
14095impl InvalidationRegion for SnippetState {
14096 fn ranges(&self) -> &[Range<Anchor>] {
14097 &self.ranges[self.active_index]
14098 }
14099}
14100
14101pub fn diagnostic_block_renderer(
14102 diagnostic: Diagnostic,
14103 max_message_rows: Option<u8>,
14104 allow_closing: bool,
14105 _is_valid: bool,
14106) -> RenderBlock {
14107 let (text_without_backticks, code_ranges) =
14108 highlight_diagnostic_message(&diagnostic, max_message_rows);
14109
14110 Box::new(move |cx: &mut BlockContext| {
14111 let group_id: SharedString = cx.block_id.to_string().into();
14112
14113 let mut text_style = cx.text_style().clone();
14114 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14115 let theme_settings = ThemeSettings::get_global(cx);
14116 text_style.font_family = theme_settings.buffer_font.family.clone();
14117 text_style.font_style = theme_settings.buffer_font.style;
14118 text_style.font_features = theme_settings.buffer_font.features.clone();
14119 text_style.font_weight = theme_settings.buffer_font.weight;
14120
14121 let multi_line_diagnostic = diagnostic.message.contains('\n');
14122
14123 let buttons = |diagnostic: &Diagnostic, block_id: BlockId| {
14124 if multi_line_diagnostic {
14125 v_flex()
14126 } else {
14127 h_flex()
14128 }
14129 .when(allow_closing, |div| {
14130 div.children(diagnostic.is_primary.then(|| {
14131 IconButton::new(("close-block", EntityId::from(block_id)), IconName::XCircle)
14132 .icon_color(Color::Muted)
14133 .size(ButtonSize::Compact)
14134 .style(ButtonStyle::Transparent)
14135 .visible_on_hover(group_id.clone())
14136 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14137 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14138 }))
14139 })
14140 .child(
14141 IconButton::new(("copy-block", EntityId::from(block_id)), IconName::Copy)
14142 .icon_color(Color::Muted)
14143 .size(ButtonSize::Compact)
14144 .style(ButtonStyle::Transparent)
14145 .visible_on_hover(group_id.clone())
14146 .on_click({
14147 let message = diagnostic.message.clone();
14148 move |_click, cx| {
14149 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14150 }
14151 })
14152 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14153 )
14154 };
14155
14156 let icon_size = buttons(&diagnostic, cx.block_id)
14157 .into_any_element()
14158 .layout_as_root(AvailableSpace::min_size(), cx);
14159
14160 h_flex()
14161 .id(cx.block_id)
14162 .group(group_id.clone())
14163 .relative()
14164 .size_full()
14165 .pl(cx.gutter_dimensions.width)
14166 .w(cx.max_width + cx.gutter_dimensions.width)
14167 .child(
14168 div()
14169 .flex()
14170 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14171 .flex_shrink(),
14172 )
14173 .child(buttons(&diagnostic, cx.block_id))
14174 .child(div().flex().flex_shrink_0().child(
14175 StyledText::new(text_without_backticks.clone()).with_highlights(
14176 &text_style,
14177 code_ranges.iter().map(|range| {
14178 (
14179 range.clone(),
14180 HighlightStyle {
14181 font_weight: Some(FontWeight::BOLD),
14182 ..Default::default()
14183 },
14184 )
14185 }),
14186 ),
14187 ))
14188 .into_any_element()
14189 })
14190}
14191
14192pub fn highlight_diagnostic_message(
14193 diagnostic: &Diagnostic,
14194 mut max_message_rows: Option<u8>,
14195) -> (SharedString, Vec<Range<usize>>) {
14196 let mut text_without_backticks = String::new();
14197 let mut code_ranges = Vec::new();
14198
14199 if let Some(source) = &diagnostic.source {
14200 text_without_backticks.push_str(source);
14201 code_ranges.push(0..source.len());
14202 text_without_backticks.push_str(": ");
14203 }
14204
14205 let mut prev_offset = 0;
14206 let mut in_code_block = false;
14207 let has_row_limit = max_message_rows.is_some();
14208 let mut newline_indices = diagnostic
14209 .message
14210 .match_indices('\n')
14211 .filter(|_| has_row_limit)
14212 .map(|(ix, _)| ix)
14213 .fuse()
14214 .peekable();
14215
14216 for (quote_ix, _) in diagnostic
14217 .message
14218 .match_indices('`')
14219 .chain([(diagnostic.message.len(), "")])
14220 {
14221 let mut first_newline_ix = None;
14222 let mut last_newline_ix = None;
14223 while let Some(newline_ix) = newline_indices.peek() {
14224 if *newline_ix < quote_ix {
14225 if first_newline_ix.is_none() {
14226 first_newline_ix = Some(*newline_ix);
14227 }
14228 last_newline_ix = Some(*newline_ix);
14229
14230 if let Some(rows_left) = &mut max_message_rows {
14231 if *rows_left == 0 {
14232 break;
14233 } else {
14234 *rows_left -= 1;
14235 }
14236 }
14237 let _ = newline_indices.next();
14238 } else {
14239 break;
14240 }
14241 }
14242 let prev_len = text_without_backticks.len();
14243 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14244 text_without_backticks.push_str(new_text);
14245 if in_code_block {
14246 code_ranges.push(prev_len..text_without_backticks.len());
14247 }
14248 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14249 in_code_block = !in_code_block;
14250 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14251 text_without_backticks.push_str("...");
14252 break;
14253 }
14254 }
14255
14256 (text_without_backticks.into(), code_ranges)
14257}
14258
14259fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14260 match severity {
14261 DiagnosticSeverity::ERROR => colors.error,
14262 DiagnosticSeverity::WARNING => colors.warning,
14263 DiagnosticSeverity::INFORMATION => colors.info,
14264 DiagnosticSeverity::HINT => colors.info,
14265 _ => colors.ignored,
14266 }
14267}
14268
14269pub fn styled_runs_for_code_label<'a>(
14270 label: &'a CodeLabel,
14271 syntax_theme: &'a theme::SyntaxTheme,
14272) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14273 let fade_out = HighlightStyle {
14274 fade_out: Some(0.35),
14275 ..Default::default()
14276 };
14277
14278 let mut prev_end = label.filter_range.end;
14279 label
14280 .runs
14281 .iter()
14282 .enumerate()
14283 .flat_map(move |(ix, (range, highlight_id))| {
14284 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14285 style
14286 } else {
14287 return Default::default();
14288 };
14289 let mut muted_style = style;
14290 muted_style.highlight(fade_out);
14291
14292 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14293 if range.start >= label.filter_range.end {
14294 if range.start > prev_end {
14295 runs.push((prev_end..range.start, fade_out));
14296 }
14297 runs.push((range.clone(), muted_style));
14298 } else if range.end <= label.filter_range.end {
14299 runs.push((range.clone(), style));
14300 } else {
14301 runs.push((range.start..label.filter_range.end, style));
14302 runs.push((label.filter_range.end..range.end, muted_style));
14303 }
14304 prev_end = cmp::max(prev_end, range.end);
14305
14306 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14307 runs.push((prev_end..label.text.len(), fade_out));
14308 }
14309
14310 runs
14311 })
14312}
14313
14314pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14315 let mut prev_index = 0;
14316 let mut prev_codepoint: Option<char> = None;
14317 text.char_indices()
14318 .chain([(text.len(), '\0')])
14319 .filter_map(move |(index, codepoint)| {
14320 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14321 let is_boundary = index == text.len()
14322 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14323 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14324 if is_boundary {
14325 let chunk = &text[prev_index..index];
14326 prev_index = index;
14327 Some(chunk)
14328 } else {
14329 None
14330 }
14331 })
14332}
14333
14334pub trait RangeToAnchorExt: Sized {
14335 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14336
14337 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14338 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14339 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14340 }
14341}
14342
14343impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14344 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14345 let start_offset = self.start.to_offset(snapshot);
14346 let end_offset = self.end.to_offset(snapshot);
14347 if start_offset == end_offset {
14348 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14349 } else {
14350 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14351 }
14352 }
14353}
14354
14355pub trait RowExt {
14356 fn as_f32(&self) -> f32;
14357
14358 fn next_row(&self) -> Self;
14359
14360 fn previous_row(&self) -> Self;
14361
14362 fn minus(&self, other: Self) -> u32;
14363}
14364
14365impl RowExt for DisplayRow {
14366 fn as_f32(&self) -> f32 {
14367 self.0 as f32
14368 }
14369
14370 fn next_row(&self) -> Self {
14371 Self(self.0 + 1)
14372 }
14373
14374 fn previous_row(&self) -> Self {
14375 Self(self.0.saturating_sub(1))
14376 }
14377
14378 fn minus(&self, other: Self) -> u32 {
14379 self.0 - other.0
14380 }
14381}
14382
14383impl RowExt for MultiBufferRow {
14384 fn as_f32(&self) -> f32 {
14385 self.0 as f32
14386 }
14387
14388 fn next_row(&self) -> Self {
14389 Self(self.0 + 1)
14390 }
14391
14392 fn previous_row(&self) -> Self {
14393 Self(self.0.saturating_sub(1))
14394 }
14395
14396 fn minus(&self, other: Self) -> u32 {
14397 self.0 - other.0
14398 }
14399}
14400
14401trait RowRangeExt {
14402 type Row;
14403
14404 fn len(&self) -> usize;
14405
14406 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14407}
14408
14409impl RowRangeExt for Range<MultiBufferRow> {
14410 type Row = MultiBufferRow;
14411
14412 fn len(&self) -> usize {
14413 (self.end.0 - self.start.0) as usize
14414 }
14415
14416 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14417 (self.start.0..self.end.0).map(MultiBufferRow)
14418 }
14419}
14420
14421impl RowRangeExt for Range<DisplayRow> {
14422 type Row = DisplayRow;
14423
14424 fn len(&self) -> usize {
14425 (self.end.0 - self.start.0) as usize
14426 }
14427
14428 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14429 (self.start.0..self.end.0).map(DisplayRow)
14430 }
14431}
14432
14433fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14434 if hunk.diff_base_byte_range.is_empty() {
14435 DiffHunkStatus::Added
14436 } else if hunk.row_range.is_empty() {
14437 DiffHunkStatus::Removed
14438 } else {
14439 DiffHunkStatus::Modified
14440 }
14441}
14442
14443/// If select range has more than one line, we
14444/// just point the cursor to range.start.
14445fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14446 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14447 range
14448 } else {
14449 range.start..range.start
14450 }
14451}