1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behavior.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18mod clangd_ext;
19mod debounced_delay;
20pub mod display_map;
21mod editor_settings;
22mod editor_settings_controls;
23mod element;
24mod git;
25mod highlight_matching_bracket;
26mod hover_links;
27mod hover_popover;
28mod hunk_diff;
29mod indent_guides;
30mod inlay_hint_cache;
31mod inline_completion_provider;
32pub mod items;
33mod linked_editing_ranges;
34mod lsp_ext;
35mod mouse_context_menu;
36pub mod movement;
37mod persistence;
38mod proposed_changes_editor;
39mod rust_analyzer_ext;
40pub mod scroll;
41mod selections_collection;
42pub mod tasks;
43
44#[cfg(test)]
45mod editor_tests;
46mod signature_help;
47#[cfg(any(test, feature = "test-support"))]
48pub mod test;
49
50use ::git::diff::DiffHunkStatus;
51pub(crate) use actions::*;
52use aho_corasick::AhoCorasick;
53use anyhow::{anyhow, Context as _, Result};
54use blink_manager::BlinkManager;
55use client::{Collaborator, ParticipantIndex};
56use clock::ReplicaId;
57use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
58use convert_case::{Case, Casing};
59use debounced_delay::DebouncedDelay;
60use display_map::*;
61pub use display_map::{DisplayPoint, FoldPlaceholder};
62pub use editor_settings::{
63 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
64};
65pub use editor_settings_controls::*;
66use element::LineWithInvisibles;
67pub use element::{
68 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
69};
70use futures::{future, FutureExt};
71use fuzzy::{StringMatch, StringMatchCandidate};
72use git::blame::GitBlame;
73use gpui::{
74 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
75 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardEntry,
76 ClipboardItem, Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent,
77 FocusableView, FontId, FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext,
78 ListSizingBehavior, Model, MouseButton, PaintQuad, ParentElement, Pixels, Render, SharedString,
79 Size, StrikethroughStyle, Styled, StyledText, Subscription, Task, TextStyle, UTF16Selection,
80 UnderlineStyle, UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext,
81 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 = 2;
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 breadcrumb_header: Option<String>,
644 focused_block: Option<FocusedBlock>,
645 next_scroll_position: NextScrollCursorCenterTopBottom,
646 addons: HashMap<TypeId, Box<dyn Addon>>,
647 _scroll_cursor_center_top_bottom_task: Task<()>,
648}
649
650#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
651enum NextScrollCursorCenterTopBottom {
652 #[default]
653 Center,
654 Top,
655 Bottom,
656}
657
658impl NextScrollCursorCenterTopBottom {
659 fn next(&self) -> Self {
660 match self {
661 Self::Center => Self::Top,
662 Self::Top => Self::Bottom,
663 Self::Bottom => Self::Center,
664 }
665 }
666}
667
668#[derive(Clone)]
669pub struct EditorSnapshot {
670 pub mode: EditorMode,
671 show_gutter: bool,
672 show_line_numbers: Option<bool>,
673 show_git_diff_gutter: Option<bool>,
674 show_code_actions: Option<bool>,
675 show_runnables: Option<bool>,
676 git_blame_gutter_max_author_length: Option<usize>,
677 pub display_snapshot: DisplaySnapshot,
678 pub placeholder_text: Option<Arc<str>>,
679 is_focused: bool,
680 scroll_anchor: ScrollAnchor,
681 ongoing_scroll: OngoingScroll,
682 current_line_highlight: CurrentLineHighlight,
683 gutter_hovered: bool,
684}
685
686const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
687
688#[derive(Default, Debug, Clone, Copy)]
689pub struct GutterDimensions {
690 pub left_padding: Pixels,
691 pub right_padding: Pixels,
692 pub width: Pixels,
693 pub margin: Pixels,
694 pub git_blame_entries_width: Option<Pixels>,
695}
696
697impl GutterDimensions {
698 /// The full width of the space taken up by the gutter.
699 pub fn full_width(&self) -> Pixels {
700 self.margin + self.width
701 }
702
703 /// The width of the space reserved for the fold indicators,
704 /// use alongside 'justify_end' and `gutter_width` to
705 /// right align content with the line numbers
706 pub fn fold_area_width(&self) -> Pixels {
707 self.margin + self.right_padding
708 }
709}
710
711#[derive(Debug)]
712pub struct RemoteSelection {
713 pub replica_id: ReplicaId,
714 pub selection: Selection<Anchor>,
715 pub cursor_shape: CursorShape,
716 pub peer_id: PeerId,
717 pub line_mode: bool,
718 pub participant_index: Option<ParticipantIndex>,
719 pub user_name: Option<SharedString>,
720}
721
722#[derive(Clone, Debug)]
723struct SelectionHistoryEntry {
724 selections: Arc<[Selection<Anchor>]>,
725 select_next_state: Option<SelectNextState>,
726 select_prev_state: Option<SelectNextState>,
727 add_selections_state: Option<AddSelectionsState>,
728}
729
730enum SelectionHistoryMode {
731 Normal,
732 Undoing,
733 Redoing,
734}
735
736#[derive(Clone, PartialEq, Eq, Hash)]
737struct HoveredCursor {
738 replica_id: u16,
739 selection_id: usize,
740}
741
742impl Default for SelectionHistoryMode {
743 fn default() -> Self {
744 Self::Normal
745 }
746}
747
748#[derive(Default)]
749struct SelectionHistory {
750 #[allow(clippy::type_complexity)]
751 selections_by_transaction:
752 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
753 mode: SelectionHistoryMode,
754 undo_stack: VecDeque<SelectionHistoryEntry>,
755 redo_stack: VecDeque<SelectionHistoryEntry>,
756}
757
758impl SelectionHistory {
759 fn insert_transaction(
760 &mut self,
761 transaction_id: TransactionId,
762 selections: Arc<[Selection<Anchor>]>,
763 ) {
764 self.selections_by_transaction
765 .insert(transaction_id, (selections, None));
766 }
767
768 #[allow(clippy::type_complexity)]
769 fn transaction(
770 &self,
771 transaction_id: TransactionId,
772 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
773 self.selections_by_transaction.get(&transaction_id)
774 }
775
776 #[allow(clippy::type_complexity)]
777 fn transaction_mut(
778 &mut self,
779 transaction_id: TransactionId,
780 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
781 self.selections_by_transaction.get_mut(&transaction_id)
782 }
783
784 fn push(&mut self, entry: SelectionHistoryEntry) {
785 if !entry.selections.is_empty() {
786 match self.mode {
787 SelectionHistoryMode::Normal => {
788 self.push_undo(entry);
789 self.redo_stack.clear();
790 }
791 SelectionHistoryMode::Undoing => self.push_redo(entry),
792 SelectionHistoryMode::Redoing => self.push_undo(entry),
793 }
794 }
795 }
796
797 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
798 if self
799 .undo_stack
800 .back()
801 .map_or(true, |e| e.selections != entry.selections)
802 {
803 self.undo_stack.push_back(entry);
804 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
805 self.undo_stack.pop_front();
806 }
807 }
808 }
809
810 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
811 if self
812 .redo_stack
813 .back()
814 .map_or(true, |e| e.selections != entry.selections)
815 {
816 self.redo_stack.push_back(entry);
817 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
818 self.redo_stack.pop_front();
819 }
820 }
821 }
822}
823
824struct RowHighlight {
825 index: usize,
826 range: Range<Anchor>,
827 color: Hsla,
828 should_autoscroll: bool,
829}
830
831#[derive(Clone, Debug)]
832struct AddSelectionsState {
833 above: bool,
834 stack: Vec<usize>,
835}
836
837#[derive(Clone)]
838struct SelectNextState {
839 query: AhoCorasick,
840 wordwise: bool,
841 done: bool,
842}
843
844impl std::fmt::Debug for SelectNextState {
845 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
846 f.debug_struct(std::any::type_name::<Self>())
847 .field("wordwise", &self.wordwise)
848 .field("done", &self.done)
849 .finish()
850 }
851}
852
853#[derive(Debug)]
854struct AutocloseRegion {
855 selection_id: usize,
856 range: Range<Anchor>,
857 pair: BracketPair,
858}
859
860#[derive(Debug)]
861struct SnippetState {
862 ranges: Vec<Vec<Range<Anchor>>>,
863 active_index: usize,
864}
865
866#[doc(hidden)]
867pub struct RenameState {
868 pub range: Range<Anchor>,
869 pub old_name: Arc<str>,
870 pub editor: View<Editor>,
871 block_id: CustomBlockId,
872}
873
874struct InvalidationStack<T>(Vec<T>);
875
876struct RegisteredInlineCompletionProvider {
877 provider: Arc<dyn InlineCompletionProviderHandle>,
878 _subscription: Subscription,
879}
880
881enum ContextMenu {
882 Completions(CompletionsMenu),
883 CodeActions(CodeActionsMenu),
884}
885
886impl ContextMenu {
887 fn select_first(
888 &mut self,
889 provider: Option<&dyn CompletionProvider>,
890 cx: &mut ViewContext<Editor>,
891 ) -> bool {
892 if self.visible() {
893 match self {
894 ContextMenu::Completions(menu) => menu.select_first(provider, cx),
895 ContextMenu::CodeActions(menu) => menu.select_first(cx),
896 }
897 true
898 } else {
899 false
900 }
901 }
902
903 fn select_prev(
904 &mut self,
905 provider: Option<&dyn CompletionProvider>,
906 cx: &mut ViewContext<Editor>,
907 ) -> bool {
908 if self.visible() {
909 match self {
910 ContextMenu::Completions(menu) => menu.select_prev(provider, cx),
911 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
912 }
913 true
914 } else {
915 false
916 }
917 }
918
919 fn select_next(
920 &mut self,
921 provider: Option<&dyn CompletionProvider>,
922 cx: &mut ViewContext<Editor>,
923 ) -> bool {
924 if self.visible() {
925 match self {
926 ContextMenu::Completions(menu) => menu.select_next(provider, cx),
927 ContextMenu::CodeActions(menu) => menu.select_next(cx),
928 }
929 true
930 } else {
931 false
932 }
933 }
934
935 fn select_last(
936 &mut self,
937 provider: Option<&dyn CompletionProvider>,
938 cx: &mut ViewContext<Editor>,
939 ) -> bool {
940 if self.visible() {
941 match self {
942 ContextMenu::Completions(menu) => menu.select_last(provider, cx),
943 ContextMenu::CodeActions(menu) => menu.select_last(cx),
944 }
945 true
946 } else {
947 false
948 }
949 }
950
951 fn visible(&self) -> bool {
952 match self {
953 ContextMenu::Completions(menu) => menu.visible(),
954 ContextMenu::CodeActions(menu) => menu.visible(),
955 }
956 }
957
958 fn render(
959 &self,
960 cursor_position: DisplayPoint,
961 style: &EditorStyle,
962 max_height: Pixels,
963 workspace: Option<WeakView<Workspace>>,
964 cx: &mut ViewContext<Editor>,
965 ) -> (ContextMenuOrigin, AnyElement) {
966 match self {
967 ContextMenu::Completions(menu) => (
968 ContextMenuOrigin::EditorPoint(cursor_position),
969 menu.render(style, max_height, workspace, cx),
970 ),
971 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
972 }
973 }
974}
975
976enum ContextMenuOrigin {
977 EditorPoint(DisplayPoint),
978 GutterIndicator(DisplayRow),
979}
980
981#[derive(Clone)]
982struct CompletionsMenu {
983 id: CompletionId,
984 sort_completions: bool,
985 initial_position: Anchor,
986 buffer: Model<Buffer>,
987 completions: Arc<RwLock<Box<[Completion]>>>,
988 match_candidates: Arc<[StringMatchCandidate]>,
989 matches: Arc<[StringMatch]>,
990 selected_item: usize,
991 scroll_handle: UniformListScrollHandle,
992 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
993}
994
995impl CompletionsMenu {
996 fn select_first(
997 &mut self,
998 provider: Option<&dyn CompletionProvider>,
999 cx: &mut ViewContext<Editor>,
1000 ) {
1001 self.selected_item = 0;
1002 self.scroll_handle.scroll_to_item(self.selected_item);
1003 self.attempt_resolve_selected_completion_documentation(provider, cx);
1004 cx.notify();
1005 }
1006
1007 fn select_prev(
1008 &mut self,
1009 provider: Option<&dyn CompletionProvider>,
1010 cx: &mut ViewContext<Editor>,
1011 ) {
1012 if self.selected_item > 0 {
1013 self.selected_item -= 1;
1014 } else {
1015 self.selected_item = self.matches.len() - 1;
1016 }
1017 self.scroll_handle.scroll_to_item(self.selected_item);
1018 self.attempt_resolve_selected_completion_documentation(provider, cx);
1019 cx.notify();
1020 }
1021
1022 fn select_next(
1023 &mut self,
1024 provider: Option<&dyn CompletionProvider>,
1025 cx: &mut ViewContext<Editor>,
1026 ) {
1027 if self.selected_item + 1 < self.matches.len() {
1028 self.selected_item += 1;
1029 } else {
1030 self.selected_item = 0;
1031 }
1032 self.scroll_handle.scroll_to_item(self.selected_item);
1033 self.attempt_resolve_selected_completion_documentation(provider, cx);
1034 cx.notify();
1035 }
1036
1037 fn select_last(
1038 &mut self,
1039 provider: Option<&dyn CompletionProvider>,
1040 cx: &mut ViewContext<Editor>,
1041 ) {
1042 self.selected_item = self.matches.len() - 1;
1043 self.scroll_handle.scroll_to_item(self.selected_item);
1044 self.attempt_resolve_selected_completion_documentation(provider, cx);
1045 cx.notify();
1046 }
1047
1048 fn pre_resolve_completion_documentation(
1049 buffer: Model<Buffer>,
1050 completions: Arc<RwLock<Box<[Completion]>>>,
1051 matches: Arc<[StringMatch]>,
1052 editor: &Editor,
1053 cx: &mut ViewContext<Editor>,
1054 ) -> Task<()> {
1055 let settings = EditorSettings::get_global(cx);
1056 if !settings.show_completion_documentation {
1057 return Task::ready(());
1058 }
1059
1060 let Some(provider) = editor.completion_provider.as_ref() else {
1061 return Task::ready(());
1062 };
1063
1064 let resolve_task = provider.resolve_completions(
1065 buffer,
1066 matches.iter().map(|m| m.candidate_id).collect(),
1067 completions.clone(),
1068 cx,
1069 );
1070
1071 cx.spawn(move |this, mut cx| async move {
1072 if let Some(true) = resolve_task.await.log_err() {
1073 this.update(&mut cx, |_, cx| cx.notify()).ok();
1074 }
1075 })
1076 }
1077
1078 fn attempt_resolve_selected_completion_documentation(
1079 &mut self,
1080 provider: Option<&dyn CompletionProvider>,
1081 cx: &mut ViewContext<Editor>,
1082 ) {
1083 let settings = EditorSettings::get_global(cx);
1084 if !settings.show_completion_documentation {
1085 return;
1086 }
1087
1088 let completion_index = self.matches[self.selected_item].candidate_id;
1089 let Some(provider) = provider else {
1090 return;
1091 };
1092
1093 let resolve_task = provider.resolve_completions(
1094 self.buffer.clone(),
1095 vec![completion_index],
1096 self.completions.clone(),
1097 cx,
1098 );
1099
1100 let delay_ms =
1101 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1102 let delay = Duration::from_millis(delay_ms);
1103
1104 self.selected_completion_documentation_resolve_debounce
1105 .lock()
1106 .fire_new(delay, cx, |_, cx| {
1107 cx.spawn(move |this, mut cx| async move {
1108 if let Some(true) = resolve_task.await.log_err() {
1109 this.update(&mut cx, |_, cx| cx.notify()).ok();
1110 }
1111 })
1112 });
1113 }
1114
1115 fn visible(&self) -> bool {
1116 !self.matches.is_empty()
1117 }
1118
1119 fn render(
1120 &self,
1121 style: &EditorStyle,
1122 max_height: Pixels,
1123 workspace: Option<WeakView<Workspace>>,
1124 cx: &mut ViewContext<Editor>,
1125 ) -> AnyElement {
1126 let settings = EditorSettings::get_global(cx);
1127 let show_completion_documentation = settings.show_completion_documentation;
1128
1129 let widest_completion_ix = self
1130 .matches
1131 .iter()
1132 .enumerate()
1133 .max_by_key(|(_, mat)| {
1134 let completions = self.completions.read();
1135 let completion = &completions[mat.candidate_id];
1136 let documentation = &completion.documentation;
1137
1138 let mut len = completion.label.text.chars().count();
1139 if let Some(Documentation::SingleLine(text)) = documentation {
1140 if show_completion_documentation {
1141 len += text.chars().count();
1142 }
1143 }
1144
1145 len
1146 })
1147 .map(|(ix, _)| ix);
1148
1149 let completions = self.completions.clone();
1150 let matches = self.matches.clone();
1151 let selected_item = self.selected_item;
1152 let style = style.clone();
1153
1154 let multiline_docs = if show_completion_documentation {
1155 let mat = &self.matches[selected_item];
1156 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1157 Some(Documentation::MultiLinePlainText(text)) => {
1158 Some(div().child(SharedString::from(text.clone())))
1159 }
1160 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1161 Some(div().child(render_parsed_markdown(
1162 "completions_markdown",
1163 parsed,
1164 &style,
1165 workspace,
1166 cx,
1167 )))
1168 }
1169 _ => None,
1170 };
1171 multiline_docs.map(|div| {
1172 div.id("multiline_docs")
1173 .max_h(max_height)
1174 .flex_1()
1175 .px_1p5()
1176 .py_1()
1177 .min_w(px(260.))
1178 .max_w(px(640.))
1179 .w(px(500.))
1180 .overflow_y_scroll()
1181 .occlude()
1182 })
1183 } else {
1184 None
1185 };
1186
1187 let list = uniform_list(
1188 cx.view().clone(),
1189 "completions",
1190 matches.len(),
1191 move |_editor, range, cx| {
1192 let start_ix = range.start;
1193 let completions_guard = completions.read();
1194
1195 matches[range]
1196 .iter()
1197 .enumerate()
1198 .map(|(ix, mat)| {
1199 let item_ix = start_ix + ix;
1200 let candidate_id = mat.candidate_id;
1201 let completion = &completions_guard[candidate_id];
1202
1203 let documentation = if show_completion_documentation {
1204 &completion.documentation
1205 } else {
1206 &None
1207 };
1208
1209 let highlights = gpui::combine_highlights(
1210 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1211 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1212 |(range, mut highlight)| {
1213 // Ignore font weight for syntax highlighting, as we'll use it
1214 // for fuzzy matches.
1215 highlight.font_weight = None;
1216
1217 if completion.lsp_completion.deprecated.unwrap_or(false) {
1218 highlight.strikethrough = Some(StrikethroughStyle {
1219 thickness: 1.0.into(),
1220 ..Default::default()
1221 });
1222 highlight.color = Some(cx.theme().colors().text_muted);
1223 }
1224
1225 (range, highlight)
1226 },
1227 ),
1228 );
1229 let completion_label = StyledText::new(completion.label.text.clone())
1230 .with_highlights(&style.text, highlights);
1231 let documentation_label =
1232 if let Some(Documentation::SingleLine(text)) = documentation {
1233 if text.trim().is_empty() {
1234 None
1235 } else {
1236 Some(
1237 Label::new(text.clone())
1238 .ml_4()
1239 .size(LabelSize::Small)
1240 .color(Color::Muted),
1241 )
1242 }
1243 } else {
1244 None
1245 };
1246
1247 let color_swatch = completion
1248 .color()
1249 .map(|color| div().size_4().bg(color).rounded_sm());
1250
1251 div().min_w(px(220.)).max_w(px(540.)).child(
1252 ListItem::new(mat.candidate_id)
1253 .inset(true)
1254 .selected(item_ix == selected_item)
1255 .on_click(cx.listener(move |editor, _event, cx| {
1256 cx.stop_propagation();
1257 if let Some(task) = editor.confirm_completion(
1258 &ConfirmCompletion {
1259 item_ix: Some(item_ix),
1260 },
1261 cx,
1262 ) {
1263 task.detach_and_log_err(cx)
1264 }
1265 }))
1266 .start_slot::<Div>(color_swatch)
1267 .child(h_flex().overflow_hidden().child(completion_label))
1268 .end_slot::<Label>(documentation_label),
1269 )
1270 })
1271 .collect()
1272 },
1273 )
1274 .occlude()
1275 .max_h(max_height)
1276 .track_scroll(self.scroll_handle.clone())
1277 .with_width_from_item(widest_completion_ix)
1278 .with_sizing_behavior(ListSizingBehavior::Infer);
1279
1280 Popover::new()
1281 .child(list)
1282 .when_some(multiline_docs, |popover, multiline_docs| {
1283 popover.aside(multiline_docs)
1284 })
1285 .into_any_element()
1286 }
1287
1288 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1289 let mut matches = if let Some(query) = query {
1290 fuzzy::match_strings(
1291 &self.match_candidates,
1292 query,
1293 query.chars().any(|c| c.is_uppercase()),
1294 100,
1295 &Default::default(),
1296 executor,
1297 )
1298 .await
1299 } else {
1300 self.match_candidates
1301 .iter()
1302 .enumerate()
1303 .map(|(candidate_id, candidate)| StringMatch {
1304 candidate_id,
1305 score: Default::default(),
1306 positions: Default::default(),
1307 string: candidate.string.clone(),
1308 })
1309 .collect()
1310 };
1311
1312 // Remove all candidates where the query's start does not match the start of any word in the candidate
1313 if let Some(query) = query {
1314 if let Some(query_start) = query.chars().next() {
1315 matches.retain(|string_match| {
1316 split_words(&string_match.string).any(|word| {
1317 // Check that the first codepoint of the word as lowercase matches the first
1318 // codepoint of the query as lowercase
1319 word.chars()
1320 .flat_map(|codepoint| codepoint.to_lowercase())
1321 .zip(query_start.to_lowercase())
1322 .all(|(word_cp, query_cp)| word_cp == query_cp)
1323 })
1324 });
1325 }
1326 }
1327
1328 let completions = self.completions.read();
1329 if self.sort_completions {
1330 matches.sort_unstable_by_key(|mat| {
1331 // We do want to strike a balance here between what the language server tells us
1332 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1333 // `Creat` and there is a local variable called `CreateComponent`).
1334 // So what we do is: we bucket all matches into two buckets
1335 // - Strong matches
1336 // - Weak matches
1337 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1338 // and the Weak matches are the rest.
1339 //
1340 // For the strong matches, we sort by the language-servers score first and for the weak
1341 // matches, we prefer our fuzzy finder first.
1342 //
1343 // The thinking behind that: it's useless to take the sort_text the language-server gives
1344 // us into account when it's obviously a bad match.
1345
1346 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1347 enum MatchScore<'a> {
1348 Strong {
1349 sort_text: Option<&'a str>,
1350 score: Reverse<OrderedFloat<f64>>,
1351 sort_key: (usize, &'a str),
1352 },
1353 Weak {
1354 score: Reverse<OrderedFloat<f64>>,
1355 sort_text: Option<&'a str>,
1356 sort_key: (usize, &'a str),
1357 },
1358 }
1359
1360 let completion = &completions[mat.candidate_id];
1361 let sort_key = completion.sort_key();
1362 let sort_text = completion.lsp_completion.sort_text.as_deref();
1363 let score = Reverse(OrderedFloat(mat.score));
1364
1365 if mat.score >= 0.2 {
1366 MatchScore::Strong {
1367 sort_text,
1368 score,
1369 sort_key,
1370 }
1371 } else {
1372 MatchScore::Weak {
1373 score,
1374 sort_text,
1375 sort_key,
1376 }
1377 }
1378 });
1379 }
1380
1381 for mat in &mut matches {
1382 let completion = &completions[mat.candidate_id];
1383 mat.string.clone_from(&completion.label.text);
1384 for position in &mut mat.positions {
1385 *position += completion.label.filter_range.start;
1386 }
1387 }
1388 drop(completions);
1389
1390 self.matches = matches.into();
1391 self.selected_item = 0;
1392 }
1393}
1394
1395struct AvailableCodeAction {
1396 excerpt_id: ExcerptId,
1397 action: CodeAction,
1398 provider: Arc<dyn CodeActionProvider>,
1399}
1400
1401#[derive(Clone)]
1402struct CodeActionContents {
1403 tasks: Option<Arc<ResolvedTasks>>,
1404 actions: Option<Arc<[AvailableCodeAction]>>,
1405}
1406
1407impl CodeActionContents {
1408 fn len(&self) -> usize {
1409 match (&self.tasks, &self.actions) {
1410 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1411 (Some(tasks), None) => tasks.templates.len(),
1412 (None, Some(actions)) => actions.len(),
1413 (None, None) => 0,
1414 }
1415 }
1416
1417 fn is_empty(&self) -> bool {
1418 match (&self.tasks, &self.actions) {
1419 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1420 (Some(tasks), None) => tasks.templates.is_empty(),
1421 (None, Some(actions)) => actions.is_empty(),
1422 (None, None) => true,
1423 }
1424 }
1425
1426 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1427 self.tasks
1428 .iter()
1429 .flat_map(|tasks| {
1430 tasks
1431 .templates
1432 .iter()
1433 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1434 })
1435 .chain(self.actions.iter().flat_map(|actions| {
1436 actions.iter().map(|available| CodeActionsItem::CodeAction {
1437 excerpt_id: available.excerpt_id,
1438 action: available.action.clone(),
1439 provider: available.provider.clone(),
1440 })
1441 }))
1442 }
1443 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1444 match (&self.tasks, &self.actions) {
1445 (Some(tasks), Some(actions)) => {
1446 if index < tasks.templates.len() {
1447 tasks
1448 .templates
1449 .get(index)
1450 .cloned()
1451 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1452 } else {
1453 actions.get(index - tasks.templates.len()).map(|available| {
1454 CodeActionsItem::CodeAction {
1455 excerpt_id: available.excerpt_id,
1456 action: available.action.clone(),
1457 provider: available.provider.clone(),
1458 }
1459 })
1460 }
1461 }
1462 (Some(tasks), None) => tasks
1463 .templates
1464 .get(index)
1465 .cloned()
1466 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1467 (None, Some(actions)) => {
1468 actions
1469 .get(index)
1470 .map(|available| CodeActionsItem::CodeAction {
1471 excerpt_id: available.excerpt_id,
1472 action: available.action.clone(),
1473 provider: available.provider.clone(),
1474 })
1475 }
1476 (None, None) => None,
1477 }
1478 }
1479}
1480
1481#[allow(clippy::large_enum_variant)]
1482#[derive(Clone)]
1483enum CodeActionsItem {
1484 Task(TaskSourceKind, ResolvedTask),
1485 CodeAction {
1486 excerpt_id: ExcerptId,
1487 action: CodeAction,
1488 provider: Arc<dyn CodeActionProvider>,
1489 },
1490}
1491
1492impl CodeActionsItem {
1493 fn as_task(&self) -> Option<&ResolvedTask> {
1494 let Self::Task(_, task) = self else {
1495 return None;
1496 };
1497 Some(task)
1498 }
1499 fn as_code_action(&self) -> Option<&CodeAction> {
1500 let Self::CodeAction { action, .. } = self else {
1501 return None;
1502 };
1503 Some(action)
1504 }
1505 fn label(&self) -> String {
1506 match self {
1507 Self::CodeAction { action, .. } => action.lsp_action.title.clone(),
1508 Self::Task(_, task) => task.resolved_label.clone(),
1509 }
1510 }
1511}
1512
1513struct CodeActionsMenu {
1514 actions: CodeActionContents,
1515 buffer: Model<Buffer>,
1516 selected_item: usize,
1517 scroll_handle: UniformListScrollHandle,
1518 deployed_from_indicator: Option<DisplayRow>,
1519}
1520
1521impl CodeActionsMenu {
1522 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1523 self.selected_item = 0;
1524 self.scroll_handle.scroll_to_item(self.selected_item);
1525 cx.notify()
1526 }
1527
1528 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1529 if self.selected_item > 0 {
1530 self.selected_item -= 1;
1531 } else {
1532 self.selected_item = self.actions.len() - 1;
1533 }
1534 self.scroll_handle.scroll_to_item(self.selected_item);
1535 cx.notify();
1536 }
1537
1538 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1539 if self.selected_item + 1 < self.actions.len() {
1540 self.selected_item += 1;
1541 } else {
1542 self.selected_item = 0;
1543 }
1544 self.scroll_handle.scroll_to_item(self.selected_item);
1545 cx.notify();
1546 }
1547
1548 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1549 self.selected_item = self.actions.len() - 1;
1550 self.scroll_handle.scroll_to_item(self.selected_item);
1551 cx.notify()
1552 }
1553
1554 fn visible(&self) -> bool {
1555 !self.actions.is_empty()
1556 }
1557
1558 fn render(
1559 &self,
1560 cursor_position: DisplayPoint,
1561 _style: &EditorStyle,
1562 max_height: Pixels,
1563 cx: &mut ViewContext<Editor>,
1564 ) -> (ContextMenuOrigin, AnyElement) {
1565 let actions = self.actions.clone();
1566 let selected_item = self.selected_item;
1567 let element = uniform_list(
1568 cx.view().clone(),
1569 "code_actions_menu",
1570 self.actions.len(),
1571 move |_this, range, cx| {
1572 actions
1573 .iter()
1574 .skip(range.start)
1575 .take(range.end - range.start)
1576 .enumerate()
1577 .map(|(ix, action)| {
1578 let item_ix = range.start + ix;
1579 let selected = selected_item == item_ix;
1580 let colors = cx.theme().colors();
1581 div()
1582 .px_1()
1583 .rounded_md()
1584 .text_color(colors.text)
1585 .when(selected, |style| {
1586 style
1587 .bg(colors.element_active)
1588 .text_color(colors.text_accent)
1589 })
1590 .hover(|style| {
1591 style
1592 .bg(colors.element_hover)
1593 .text_color(colors.text_accent)
1594 })
1595 .whitespace_nowrap()
1596 .when_some(action.as_code_action(), |this, action| {
1597 this.on_mouse_down(
1598 MouseButton::Left,
1599 cx.listener(move |editor, _, cx| {
1600 cx.stop_propagation();
1601 if let Some(task) = editor.confirm_code_action(
1602 &ConfirmCodeAction {
1603 item_ix: Some(item_ix),
1604 },
1605 cx,
1606 ) {
1607 task.detach_and_log_err(cx)
1608 }
1609 }),
1610 )
1611 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1612 .child(SharedString::from(action.lsp_action.title.clone()))
1613 })
1614 .when_some(action.as_task(), |this, task| {
1615 this.on_mouse_down(
1616 MouseButton::Left,
1617 cx.listener(move |editor, _, cx| {
1618 cx.stop_propagation();
1619 if let Some(task) = editor.confirm_code_action(
1620 &ConfirmCodeAction {
1621 item_ix: Some(item_ix),
1622 },
1623 cx,
1624 ) {
1625 task.detach_and_log_err(cx)
1626 }
1627 }),
1628 )
1629 .child(SharedString::from(task.resolved_label.clone()))
1630 })
1631 })
1632 .collect()
1633 },
1634 )
1635 .elevation_1(cx)
1636 .p_1()
1637 .max_h(max_height)
1638 .occlude()
1639 .track_scroll(self.scroll_handle.clone())
1640 .with_width_from_item(
1641 self.actions
1642 .iter()
1643 .enumerate()
1644 .max_by_key(|(_, action)| match action {
1645 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1646 CodeActionsItem::CodeAction { action, .. } => {
1647 action.lsp_action.title.chars().count()
1648 }
1649 })
1650 .map(|(ix, _)| ix),
1651 )
1652 .with_sizing_behavior(ListSizingBehavior::Infer)
1653 .into_any_element();
1654
1655 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1656 ContextMenuOrigin::GutterIndicator(row)
1657 } else {
1658 ContextMenuOrigin::EditorPoint(cursor_position)
1659 };
1660
1661 (cursor_position, element)
1662 }
1663}
1664
1665#[derive(Debug)]
1666struct ActiveDiagnosticGroup {
1667 primary_range: Range<Anchor>,
1668 primary_message: String,
1669 group_id: usize,
1670 blocks: HashMap<CustomBlockId, Diagnostic>,
1671 is_valid: bool,
1672}
1673
1674#[derive(Serialize, Deserialize, Clone, Debug)]
1675pub struct ClipboardSelection {
1676 pub len: usize,
1677 pub is_entire_line: bool,
1678 pub first_line_indent: u32,
1679}
1680
1681#[derive(Debug)]
1682pub(crate) struct NavigationData {
1683 cursor_anchor: Anchor,
1684 cursor_position: Point,
1685 scroll_anchor: ScrollAnchor,
1686 scroll_top_row: u32,
1687}
1688
1689#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1690pub enum GotoDefinitionKind {
1691 Symbol,
1692 Declaration,
1693 Type,
1694 Implementation,
1695}
1696
1697#[derive(Debug, Clone)]
1698enum InlayHintRefreshReason {
1699 Toggle(bool),
1700 SettingsChange(InlayHintSettings),
1701 NewLinesShown,
1702 BufferEdited(HashSet<Arc<Language>>),
1703 RefreshRequested,
1704 ExcerptsRemoved(Vec<ExcerptId>),
1705}
1706
1707impl InlayHintRefreshReason {
1708 fn description(&self) -> &'static str {
1709 match self {
1710 Self::Toggle(_) => "toggle",
1711 Self::SettingsChange(_) => "settings change",
1712 Self::NewLinesShown => "new lines shown",
1713 Self::BufferEdited(_) => "buffer edited",
1714 Self::RefreshRequested => "refresh requested",
1715 Self::ExcerptsRemoved(_) => "excerpts removed",
1716 }
1717 }
1718}
1719
1720pub(crate) struct FocusedBlock {
1721 id: BlockId,
1722 focus_handle: WeakFocusHandle,
1723}
1724
1725impl Editor {
1726 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1727 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1728 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1729 Self::new(
1730 EditorMode::SingleLine { auto_width: false },
1731 buffer,
1732 None,
1733 false,
1734 cx,
1735 )
1736 }
1737
1738 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1739 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1740 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1741 Self::new(EditorMode::Full, buffer, None, false, cx)
1742 }
1743
1744 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1745 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1746 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1747 Self::new(
1748 EditorMode::SingleLine { auto_width: true },
1749 buffer,
1750 None,
1751 false,
1752 cx,
1753 )
1754 }
1755
1756 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1757 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1758 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1759 Self::new(
1760 EditorMode::AutoHeight { max_lines },
1761 buffer,
1762 None,
1763 false,
1764 cx,
1765 )
1766 }
1767
1768 pub fn for_buffer(
1769 buffer: Model<Buffer>,
1770 project: Option<Model<Project>>,
1771 cx: &mut ViewContext<Self>,
1772 ) -> Self {
1773 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1774 Self::new(EditorMode::Full, buffer, project, false, cx)
1775 }
1776
1777 pub fn for_multibuffer(
1778 buffer: Model<MultiBuffer>,
1779 project: Option<Model<Project>>,
1780 show_excerpt_controls: bool,
1781 cx: &mut ViewContext<Self>,
1782 ) -> Self {
1783 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1784 }
1785
1786 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1787 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1788 let mut clone = Self::new(
1789 self.mode,
1790 self.buffer.clone(),
1791 self.project.clone(),
1792 show_excerpt_controls,
1793 cx,
1794 );
1795 self.display_map.update(cx, |display_map, cx| {
1796 let snapshot = display_map.snapshot(cx);
1797 clone.display_map.update(cx, |display_map, cx| {
1798 display_map.set_state(&snapshot, cx);
1799 });
1800 });
1801 clone.selections.clone_state(&self.selections);
1802 clone.scroll_manager.clone_state(&self.scroll_manager);
1803 clone.searchable = self.searchable;
1804 clone
1805 }
1806
1807 pub fn new(
1808 mode: EditorMode,
1809 buffer: Model<MultiBuffer>,
1810 project: Option<Model<Project>>,
1811 show_excerpt_controls: bool,
1812 cx: &mut ViewContext<Self>,
1813 ) -> Self {
1814 let style = cx.text_style();
1815 let font_size = style.font_size.to_pixels(cx.rem_size());
1816 let editor = cx.view().downgrade();
1817 let fold_placeholder = FoldPlaceholder {
1818 constrain_width: true,
1819 render: Arc::new(move |fold_id, fold_range, cx| {
1820 let editor = editor.clone();
1821 div()
1822 .id(fold_id)
1823 .bg(cx.theme().colors().ghost_element_background)
1824 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1825 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1826 .rounded_sm()
1827 .size_full()
1828 .cursor_pointer()
1829 .child("⋯")
1830 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1831 .on_click(move |_, cx| {
1832 editor
1833 .update(cx, |editor, cx| {
1834 editor.unfold_ranges(
1835 [fold_range.start..fold_range.end],
1836 true,
1837 false,
1838 cx,
1839 );
1840 cx.stop_propagation();
1841 })
1842 .ok();
1843 })
1844 .into_any()
1845 }),
1846 merge_adjacent: true,
1847 };
1848 let display_map = cx.new_model(|cx| {
1849 DisplayMap::new(
1850 buffer.clone(),
1851 style.font(),
1852 font_size,
1853 None,
1854 show_excerpt_controls,
1855 FILE_HEADER_HEIGHT,
1856 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1857 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1858 fold_placeholder,
1859 cx,
1860 )
1861 });
1862
1863 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1864
1865 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1866
1867 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1868 .then(|| language_settings::SoftWrap::None);
1869
1870 let mut project_subscriptions = Vec::new();
1871 if mode == EditorMode::Full {
1872 if let Some(project) = project.as_ref() {
1873 if buffer.read(cx).is_singleton() {
1874 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1875 cx.emit(EditorEvent::TitleChanged);
1876 }));
1877 }
1878 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1879 if let project::Event::RefreshInlayHints = event {
1880 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1881 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1882 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1883 let focus_handle = editor.focus_handle(cx);
1884 if focus_handle.is_focused(cx) {
1885 let snapshot = buffer.read(cx).snapshot();
1886 for (range, snippet) in snippet_edits {
1887 let editor_range =
1888 language::range_from_lsp(*range).to_offset(&snapshot);
1889 editor
1890 .insert_snippet(&[editor_range], snippet.clone(), cx)
1891 .ok();
1892 }
1893 }
1894 }
1895 }
1896 }));
1897 if let Some(task_inventory) = project
1898 .read(cx)
1899 .task_store()
1900 .read(cx)
1901 .task_inventory()
1902 .cloned()
1903 {
1904 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1905 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1906 }));
1907 }
1908 }
1909 }
1910
1911 let inlay_hint_settings = inlay_hint_settings(
1912 selections.newest_anchor().head(),
1913 &buffer.read(cx).snapshot(cx),
1914 cx,
1915 );
1916 let focus_handle = cx.focus_handle();
1917 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1918 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1919 .detach();
1920 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1921 .detach();
1922 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1923
1924 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1925 Some(false)
1926 } else {
1927 None
1928 };
1929
1930 let mut code_action_providers = Vec::new();
1931 if let Some(project) = project.clone() {
1932 code_action_providers.push(Arc::new(project) as Arc<_>);
1933 }
1934
1935 let mut this = Self {
1936 focus_handle,
1937 show_cursor_when_unfocused: false,
1938 last_focused_descendant: None,
1939 buffer: buffer.clone(),
1940 display_map: display_map.clone(),
1941 selections,
1942 scroll_manager: ScrollManager::new(cx),
1943 columnar_selection_tail: None,
1944 add_selections_state: None,
1945 select_next_state: None,
1946 select_prev_state: None,
1947 selection_history: Default::default(),
1948 autoclose_regions: Default::default(),
1949 snippet_stack: Default::default(),
1950 select_larger_syntax_node_stack: Vec::new(),
1951 ime_transaction: Default::default(),
1952 active_diagnostics: None,
1953 soft_wrap_mode_override,
1954 completion_provider: project.clone().map(|project| Box::new(project) as _),
1955 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1956 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1957 project,
1958 blink_manager: blink_manager.clone(),
1959 show_local_selections: true,
1960 mode,
1961 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1962 show_gutter: mode == EditorMode::Full,
1963 show_line_numbers: None,
1964 use_relative_line_numbers: None,
1965 show_git_diff_gutter: None,
1966 show_code_actions: None,
1967 show_runnables: None,
1968 show_wrap_guides: None,
1969 show_indent_guides,
1970 placeholder_text: None,
1971 highlight_order: 0,
1972 highlighted_rows: HashMap::default(),
1973 background_highlights: Default::default(),
1974 gutter_highlights: TreeMap::default(),
1975 scrollbar_marker_state: ScrollbarMarkerState::default(),
1976 active_indent_guides_state: ActiveIndentGuidesState::default(),
1977 nav_history: None,
1978 context_menu: RwLock::new(None),
1979 mouse_context_menu: None,
1980 hunk_controls_menu_handle: PopoverMenuHandle::default(),
1981 completion_tasks: Default::default(),
1982 signature_help_state: SignatureHelpState::default(),
1983 auto_signature_help: None,
1984 find_all_references_task_sources: Vec::new(),
1985 next_completion_id: 0,
1986 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1987 next_inlay_id: 0,
1988 code_action_providers,
1989 available_code_actions: Default::default(),
1990 code_actions_task: Default::default(),
1991 document_highlights_task: Default::default(),
1992 linked_editing_range_task: Default::default(),
1993 pending_rename: Default::default(),
1994 searchable: true,
1995 cursor_shape: EditorSettings::get_global(cx)
1996 .cursor_shape
1997 .unwrap_or_default(),
1998 current_line_highlight: None,
1999 autoindent_mode: Some(AutoindentMode::EachLine),
2000 collapse_matches: false,
2001 workspace: None,
2002 input_enabled: true,
2003 use_modal_editing: mode == EditorMode::Full,
2004 read_only: false,
2005 use_autoclose: true,
2006 use_auto_surround: true,
2007 auto_replace_emoji_shortcode: false,
2008 leader_peer_id: None,
2009 remote_id: None,
2010 hover_state: Default::default(),
2011 hovered_link_state: Default::default(),
2012 inline_completion_provider: None,
2013 active_inline_completion: None,
2014 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
2015 expanded_hunks: ExpandedHunks::default(),
2016 gutter_hovered: false,
2017 pixel_position_of_newest_cursor: None,
2018 last_bounds: None,
2019 expect_bounds_change: None,
2020 gutter_dimensions: GutterDimensions::default(),
2021 style: None,
2022 show_cursor_names: false,
2023 hovered_cursors: Default::default(),
2024 next_editor_action_id: EditorActionId::default(),
2025 editor_actions: Rc::default(),
2026 show_inline_completions_override: None,
2027 enable_inline_completions: true,
2028 custom_context_menu: None,
2029 show_git_blame_gutter: false,
2030 show_git_blame_inline: false,
2031 show_selection_menu: None,
2032 show_git_blame_inline_delay_task: None,
2033 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
2034 serialize_dirty_buffers: ProjectSettings::get_global(cx)
2035 .session
2036 .restore_unsaved_buffers,
2037 blame: None,
2038 blame_subscription: None,
2039 tasks: Default::default(),
2040 _subscriptions: vec![
2041 cx.observe(&buffer, Self::on_buffer_changed),
2042 cx.subscribe(&buffer, Self::on_buffer_event),
2043 cx.observe(&display_map, Self::on_display_map_changed),
2044 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
2045 cx.observe_global::<SettingsStore>(Self::settings_changed),
2046 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
2047 cx.observe_window_activation(|editor, cx| {
2048 let active = cx.is_window_active();
2049 editor.blink_manager.update(cx, |blink_manager, cx| {
2050 if active {
2051 blink_manager.enable(cx);
2052 } else {
2053 blink_manager.disable(cx);
2054 }
2055 });
2056 }),
2057 ],
2058 tasks_update_task: None,
2059 linked_edit_ranges: Default::default(),
2060 previous_search_ranges: None,
2061 breadcrumb_header: None,
2062 focused_block: None,
2063 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
2064 addons: HashMap::default(),
2065 _scroll_cursor_center_top_bottom_task: Task::ready(()),
2066 };
2067 this.tasks_update_task = Some(this.refresh_runnables(cx));
2068 this._subscriptions.extend(project_subscriptions);
2069
2070 this.end_selection(cx);
2071 this.scroll_manager.show_scrollbar(cx);
2072
2073 if mode == EditorMode::Full {
2074 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
2075 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
2076
2077 if this.git_blame_inline_enabled {
2078 this.git_blame_inline_enabled = true;
2079 this.start_git_blame_inline(false, cx);
2080 }
2081 }
2082
2083 this.report_editor_event("open", None, cx);
2084 this
2085 }
2086
2087 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
2088 self.mouse_context_menu
2089 .as_ref()
2090 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
2091 }
2092
2093 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
2094 let mut key_context = KeyContext::new_with_defaults();
2095 key_context.add("Editor");
2096 let mode = match self.mode {
2097 EditorMode::SingleLine { .. } => "single_line",
2098 EditorMode::AutoHeight { .. } => "auto_height",
2099 EditorMode::Full => "full",
2100 };
2101
2102 if EditorSettings::jupyter_enabled(cx) {
2103 key_context.add("jupyter");
2104 }
2105
2106 key_context.set("mode", mode);
2107 if self.pending_rename.is_some() {
2108 key_context.add("renaming");
2109 }
2110 if self.context_menu_visible() {
2111 match self.context_menu.read().as_ref() {
2112 Some(ContextMenu::Completions(_)) => {
2113 key_context.add("menu");
2114 key_context.add("showing_completions")
2115 }
2116 Some(ContextMenu::CodeActions(_)) => {
2117 key_context.add("menu");
2118 key_context.add("showing_code_actions")
2119 }
2120 None => {}
2121 }
2122 }
2123
2124 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2125 if !self.focus_handle(cx).contains_focused(cx)
2126 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2127 {
2128 for addon in self.addons.values() {
2129 addon.extend_key_context(&mut key_context, cx)
2130 }
2131 }
2132
2133 if let Some(extension) = self
2134 .buffer
2135 .read(cx)
2136 .as_singleton()
2137 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2138 {
2139 key_context.set("extension", extension.to_string());
2140 }
2141
2142 if self.has_active_inline_completion(cx) {
2143 key_context.add("copilot_suggestion");
2144 key_context.add("inline_completion");
2145 }
2146
2147 key_context
2148 }
2149
2150 pub fn new_file(
2151 workspace: &mut Workspace,
2152 _: &workspace::NewFile,
2153 cx: &mut ViewContext<Workspace>,
2154 ) {
2155 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2156 "Failed to create buffer",
2157 cx,
2158 |e, _| match e.error_code() {
2159 ErrorCode::RemoteUpgradeRequired => Some(format!(
2160 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2161 e.error_tag("required").unwrap_or("the latest version")
2162 )),
2163 _ => None,
2164 },
2165 );
2166 }
2167
2168 pub fn new_in_workspace(
2169 workspace: &mut Workspace,
2170 cx: &mut ViewContext<Workspace>,
2171 ) -> Task<Result<View<Editor>>> {
2172 let project = workspace.project().clone();
2173 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2174
2175 cx.spawn(|workspace, mut cx| async move {
2176 let buffer = create.await?;
2177 workspace.update(&mut cx, |workspace, cx| {
2178 let editor =
2179 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2180 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2181 editor
2182 })
2183 })
2184 }
2185
2186 fn new_file_vertical(
2187 workspace: &mut Workspace,
2188 _: &workspace::NewFileSplitVertical,
2189 cx: &mut ViewContext<Workspace>,
2190 ) {
2191 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2192 }
2193
2194 fn new_file_horizontal(
2195 workspace: &mut Workspace,
2196 _: &workspace::NewFileSplitHorizontal,
2197 cx: &mut ViewContext<Workspace>,
2198 ) {
2199 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2200 }
2201
2202 fn new_file_in_direction(
2203 workspace: &mut Workspace,
2204 direction: SplitDirection,
2205 cx: &mut ViewContext<Workspace>,
2206 ) {
2207 let project = workspace.project().clone();
2208 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2209
2210 cx.spawn(|workspace, mut cx| async move {
2211 let buffer = create.await?;
2212 workspace.update(&mut cx, move |workspace, cx| {
2213 workspace.split_item(
2214 direction,
2215 Box::new(
2216 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2217 ),
2218 cx,
2219 )
2220 })?;
2221 anyhow::Ok(())
2222 })
2223 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2224 ErrorCode::RemoteUpgradeRequired => Some(format!(
2225 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2226 e.error_tag("required").unwrap_or("the latest version")
2227 )),
2228 _ => None,
2229 });
2230 }
2231
2232 pub fn leader_peer_id(&self) -> Option<PeerId> {
2233 self.leader_peer_id
2234 }
2235
2236 pub fn buffer(&self) -> &Model<MultiBuffer> {
2237 &self.buffer
2238 }
2239
2240 pub fn workspace(&self) -> Option<View<Workspace>> {
2241 self.workspace.as_ref()?.0.upgrade()
2242 }
2243
2244 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2245 self.buffer().read(cx).title(cx)
2246 }
2247
2248 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2249 let git_blame_gutter_max_author_length = self
2250 .render_git_blame_gutter(cx)
2251 .then(|| {
2252 if let Some(blame) = self.blame.as_ref() {
2253 let max_author_length =
2254 blame.update(cx, |blame, cx| blame.max_author_length(cx));
2255 Some(max_author_length)
2256 } else {
2257 None
2258 }
2259 })
2260 .flatten();
2261
2262 EditorSnapshot {
2263 mode: self.mode,
2264 show_gutter: self.show_gutter,
2265 show_line_numbers: self.show_line_numbers,
2266 show_git_diff_gutter: self.show_git_diff_gutter,
2267 show_code_actions: self.show_code_actions,
2268 show_runnables: self.show_runnables,
2269 git_blame_gutter_max_author_length,
2270 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2271 scroll_anchor: self.scroll_manager.anchor(),
2272 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2273 placeholder_text: self.placeholder_text.clone(),
2274 is_focused: self.focus_handle.is_focused(cx),
2275 current_line_highlight: self
2276 .current_line_highlight
2277 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2278 gutter_hovered: self.gutter_hovered,
2279 }
2280 }
2281
2282 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2283 self.buffer.read(cx).language_at(point, cx)
2284 }
2285
2286 pub fn file_at<T: ToOffset>(
2287 &self,
2288 point: T,
2289 cx: &AppContext,
2290 ) -> Option<Arc<dyn language::File>> {
2291 self.buffer.read(cx).read(cx).file_at(point).cloned()
2292 }
2293
2294 pub fn active_excerpt(
2295 &self,
2296 cx: &AppContext,
2297 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2298 self.buffer
2299 .read(cx)
2300 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2301 }
2302
2303 pub fn mode(&self) -> EditorMode {
2304 self.mode
2305 }
2306
2307 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2308 self.collaboration_hub.as_deref()
2309 }
2310
2311 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2312 self.collaboration_hub = Some(hub);
2313 }
2314
2315 pub fn set_custom_context_menu(
2316 &mut self,
2317 f: impl 'static
2318 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2319 ) {
2320 self.custom_context_menu = Some(Box::new(f))
2321 }
2322
2323 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
2324 self.completion_provider = provider;
2325 }
2326
2327 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
2328 self.semantics_provider.clone()
2329 }
2330
2331 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
2332 self.semantics_provider = provider;
2333 }
2334
2335 pub fn set_inline_completion_provider<T>(
2336 &mut self,
2337 provider: Option<Model<T>>,
2338 cx: &mut ViewContext<Self>,
2339 ) where
2340 T: InlineCompletionProvider,
2341 {
2342 self.inline_completion_provider =
2343 provider.map(|provider| RegisteredInlineCompletionProvider {
2344 _subscription: cx.observe(&provider, |this, _, cx| {
2345 if this.focus_handle.is_focused(cx) {
2346 this.update_visible_inline_completion(cx);
2347 }
2348 }),
2349 provider: Arc::new(provider),
2350 });
2351 self.refresh_inline_completion(false, false, cx);
2352 }
2353
2354 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2355 self.placeholder_text.as_deref()
2356 }
2357
2358 pub fn set_placeholder_text(
2359 &mut self,
2360 placeholder_text: impl Into<Arc<str>>,
2361 cx: &mut ViewContext<Self>,
2362 ) {
2363 let placeholder_text = Some(placeholder_text.into());
2364 if self.placeholder_text != placeholder_text {
2365 self.placeholder_text = placeholder_text;
2366 cx.notify();
2367 }
2368 }
2369
2370 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2371 self.cursor_shape = cursor_shape;
2372
2373 // Disrupt blink for immediate user feedback that the cursor shape has changed
2374 self.blink_manager.update(cx, BlinkManager::show_cursor);
2375
2376 cx.notify();
2377 }
2378
2379 pub fn set_current_line_highlight(
2380 &mut self,
2381 current_line_highlight: Option<CurrentLineHighlight>,
2382 ) {
2383 self.current_line_highlight = current_line_highlight;
2384 }
2385
2386 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2387 self.collapse_matches = collapse_matches;
2388 }
2389
2390 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2391 if self.collapse_matches {
2392 return range.start..range.start;
2393 }
2394 range.clone()
2395 }
2396
2397 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2398 if self.display_map.read(cx).clip_at_line_ends != clip {
2399 self.display_map
2400 .update(cx, |map, _| map.clip_at_line_ends = clip);
2401 }
2402 }
2403
2404 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2405 self.input_enabled = input_enabled;
2406 }
2407
2408 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2409 self.enable_inline_completions = enabled;
2410 }
2411
2412 pub fn set_autoindent(&mut self, autoindent: bool) {
2413 if autoindent {
2414 self.autoindent_mode = Some(AutoindentMode::EachLine);
2415 } else {
2416 self.autoindent_mode = None;
2417 }
2418 }
2419
2420 pub fn read_only(&self, cx: &AppContext) -> bool {
2421 self.read_only || self.buffer.read(cx).read_only()
2422 }
2423
2424 pub fn set_read_only(&mut self, read_only: bool) {
2425 self.read_only = read_only;
2426 }
2427
2428 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2429 self.use_autoclose = autoclose;
2430 }
2431
2432 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2433 self.use_auto_surround = auto_surround;
2434 }
2435
2436 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2437 self.auto_replace_emoji_shortcode = auto_replace;
2438 }
2439
2440 pub fn toggle_inline_completions(
2441 &mut self,
2442 _: &ToggleInlineCompletions,
2443 cx: &mut ViewContext<Self>,
2444 ) {
2445 if self.show_inline_completions_override.is_some() {
2446 self.set_show_inline_completions(None, cx);
2447 } else {
2448 let cursor = self.selections.newest_anchor().head();
2449 if let Some((buffer, cursor_buffer_position)) =
2450 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2451 {
2452 let show_inline_completions =
2453 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2454 self.set_show_inline_completions(Some(show_inline_completions), cx);
2455 }
2456 }
2457 }
2458
2459 pub fn set_show_inline_completions(
2460 &mut self,
2461 show_inline_completions: Option<bool>,
2462 cx: &mut ViewContext<Self>,
2463 ) {
2464 self.show_inline_completions_override = show_inline_completions;
2465 self.refresh_inline_completion(false, true, cx);
2466 }
2467
2468 fn should_show_inline_completions(
2469 &self,
2470 buffer: &Model<Buffer>,
2471 buffer_position: language::Anchor,
2472 cx: &AppContext,
2473 ) -> bool {
2474 if let Some(provider) = self.inline_completion_provider() {
2475 if let Some(show_inline_completions) = self.show_inline_completions_override {
2476 show_inline_completions
2477 } else {
2478 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2479 }
2480 } else {
2481 false
2482 }
2483 }
2484
2485 pub fn set_use_modal_editing(&mut self, to: bool) {
2486 self.use_modal_editing = to;
2487 }
2488
2489 pub fn use_modal_editing(&self) -> bool {
2490 self.use_modal_editing
2491 }
2492
2493 fn selections_did_change(
2494 &mut self,
2495 local: bool,
2496 old_cursor_position: &Anchor,
2497 show_completions: bool,
2498 cx: &mut ViewContext<Self>,
2499 ) {
2500 cx.invalidate_character_coordinates();
2501
2502 // Copy selections to primary selection buffer
2503 #[cfg(target_os = "linux")]
2504 if local {
2505 let selections = self.selections.all::<usize>(cx);
2506 let buffer_handle = self.buffer.read(cx).read(cx);
2507
2508 let mut text = String::new();
2509 for (index, selection) in selections.iter().enumerate() {
2510 let text_for_selection = buffer_handle
2511 .text_for_range(selection.start..selection.end)
2512 .collect::<String>();
2513
2514 text.push_str(&text_for_selection);
2515 if index != selections.len() - 1 {
2516 text.push('\n');
2517 }
2518 }
2519
2520 if !text.is_empty() {
2521 cx.write_to_primary(ClipboardItem::new_string(text));
2522 }
2523 }
2524
2525 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2526 self.buffer.update(cx, |buffer, cx| {
2527 buffer.set_active_selections(
2528 &self.selections.disjoint_anchors(),
2529 self.selections.line_mode,
2530 self.cursor_shape,
2531 cx,
2532 )
2533 });
2534 }
2535 let display_map = self
2536 .display_map
2537 .update(cx, |display_map, cx| display_map.snapshot(cx));
2538 let buffer = &display_map.buffer_snapshot;
2539 self.add_selections_state = None;
2540 self.select_next_state = None;
2541 self.select_prev_state = None;
2542 self.select_larger_syntax_node_stack.clear();
2543 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2544 self.snippet_stack
2545 .invalidate(&self.selections.disjoint_anchors(), buffer);
2546 self.take_rename(false, cx);
2547
2548 let new_cursor_position = self.selections.newest_anchor().head();
2549
2550 self.push_to_nav_history(
2551 *old_cursor_position,
2552 Some(new_cursor_position.to_point(buffer)),
2553 cx,
2554 );
2555
2556 if local {
2557 let new_cursor_position = self.selections.newest_anchor().head();
2558 let mut context_menu = self.context_menu.write();
2559 let completion_menu = match context_menu.as_ref() {
2560 Some(ContextMenu::Completions(menu)) => Some(menu),
2561
2562 _ => {
2563 *context_menu = None;
2564 None
2565 }
2566 };
2567
2568 if let Some(completion_menu) = completion_menu {
2569 let cursor_position = new_cursor_position.to_offset(buffer);
2570 let (word_range, kind) =
2571 buffer.surrounding_word(completion_menu.initial_position, true);
2572 if kind == Some(CharKind::Word)
2573 && word_range.to_inclusive().contains(&cursor_position)
2574 {
2575 let mut completion_menu = completion_menu.clone();
2576 drop(context_menu);
2577
2578 let query = Self::completion_query(buffer, cursor_position);
2579 cx.spawn(move |this, mut cx| async move {
2580 completion_menu
2581 .filter(query.as_deref(), cx.background_executor().clone())
2582 .await;
2583
2584 this.update(&mut cx, |this, cx| {
2585 let mut context_menu = this.context_menu.write();
2586 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2587 return;
2588 };
2589
2590 if menu.id > completion_menu.id {
2591 return;
2592 }
2593
2594 *context_menu = Some(ContextMenu::Completions(completion_menu));
2595 drop(context_menu);
2596 cx.notify();
2597 })
2598 })
2599 .detach();
2600
2601 if show_completions {
2602 self.show_completions(&ShowCompletions { trigger: None }, cx);
2603 }
2604 } else {
2605 drop(context_menu);
2606 self.hide_context_menu(cx);
2607 }
2608 } else {
2609 drop(context_menu);
2610 }
2611
2612 hide_hover(self, cx);
2613
2614 if old_cursor_position.to_display_point(&display_map).row()
2615 != new_cursor_position.to_display_point(&display_map).row()
2616 {
2617 self.available_code_actions.take();
2618 }
2619 self.refresh_code_actions(cx);
2620 self.refresh_document_highlights(cx);
2621 refresh_matching_bracket_highlights(self, cx);
2622 self.discard_inline_completion(false, cx);
2623 linked_editing_ranges::refresh_linked_ranges(self, cx);
2624 if self.git_blame_inline_enabled {
2625 self.start_inline_blame_timer(cx);
2626 }
2627 }
2628
2629 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2630 cx.emit(EditorEvent::SelectionsChanged { local });
2631
2632 if self.selections.disjoint_anchors().len() == 1 {
2633 cx.emit(SearchEvent::ActiveMatchChanged)
2634 }
2635 cx.notify();
2636 }
2637
2638 pub fn change_selections<R>(
2639 &mut self,
2640 autoscroll: Option<Autoscroll>,
2641 cx: &mut ViewContext<Self>,
2642 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2643 ) -> R {
2644 self.change_selections_inner(autoscroll, true, cx, change)
2645 }
2646
2647 pub fn change_selections_inner<R>(
2648 &mut self,
2649 autoscroll: Option<Autoscroll>,
2650 request_completions: bool,
2651 cx: &mut ViewContext<Self>,
2652 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2653 ) -> R {
2654 let old_cursor_position = self.selections.newest_anchor().head();
2655 self.push_to_selection_history();
2656
2657 let (changed, result) = self.selections.change_with(cx, change);
2658
2659 if changed {
2660 if let Some(autoscroll) = autoscroll {
2661 self.request_autoscroll(autoscroll, cx);
2662 }
2663 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2664
2665 if self.should_open_signature_help_automatically(
2666 &old_cursor_position,
2667 self.signature_help_state.backspace_pressed(),
2668 cx,
2669 ) {
2670 self.show_signature_help(&ShowSignatureHelp, cx);
2671 }
2672 self.signature_help_state.set_backspace_pressed(false);
2673 }
2674
2675 result
2676 }
2677
2678 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2679 where
2680 I: IntoIterator<Item = (Range<S>, T)>,
2681 S: ToOffset,
2682 T: Into<Arc<str>>,
2683 {
2684 if self.read_only(cx) {
2685 return;
2686 }
2687
2688 self.buffer
2689 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2690 }
2691
2692 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2693 where
2694 I: IntoIterator<Item = (Range<S>, T)>,
2695 S: ToOffset,
2696 T: Into<Arc<str>>,
2697 {
2698 if self.read_only(cx) {
2699 return;
2700 }
2701
2702 self.buffer.update(cx, |buffer, cx| {
2703 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2704 });
2705 }
2706
2707 pub fn edit_with_block_indent<I, S, T>(
2708 &mut self,
2709 edits: I,
2710 original_indent_columns: Vec<u32>,
2711 cx: &mut ViewContext<Self>,
2712 ) where
2713 I: IntoIterator<Item = (Range<S>, T)>,
2714 S: ToOffset,
2715 T: Into<Arc<str>>,
2716 {
2717 if self.read_only(cx) {
2718 return;
2719 }
2720
2721 self.buffer.update(cx, |buffer, cx| {
2722 buffer.edit(
2723 edits,
2724 Some(AutoindentMode::Block {
2725 original_indent_columns,
2726 }),
2727 cx,
2728 )
2729 });
2730 }
2731
2732 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2733 self.hide_context_menu(cx);
2734
2735 match phase {
2736 SelectPhase::Begin {
2737 position,
2738 add,
2739 click_count,
2740 } => self.begin_selection(position, add, click_count, cx),
2741 SelectPhase::BeginColumnar {
2742 position,
2743 goal_column,
2744 reset,
2745 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2746 SelectPhase::Extend {
2747 position,
2748 click_count,
2749 } => self.extend_selection(position, click_count, cx),
2750 SelectPhase::Update {
2751 position,
2752 goal_column,
2753 scroll_delta,
2754 } => self.update_selection(position, goal_column, scroll_delta, cx),
2755 SelectPhase::End => self.end_selection(cx),
2756 }
2757 }
2758
2759 fn extend_selection(
2760 &mut self,
2761 position: DisplayPoint,
2762 click_count: usize,
2763 cx: &mut ViewContext<Self>,
2764 ) {
2765 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2766 let tail = self.selections.newest::<usize>(cx).tail();
2767 self.begin_selection(position, false, click_count, cx);
2768
2769 let position = position.to_offset(&display_map, Bias::Left);
2770 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2771
2772 let mut pending_selection = self
2773 .selections
2774 .pending_anchor()
2775 .expect("extend_selection not called with pending selection");
2776 if position >= tail {
2777 pending_selection.start = tail_anchor;
2778 } else {
2779 pending_selection.end = tail_anchor;
2780 pending_selection.reversed = true;
2781 }
2782
2783 let mut pending_mode = self.selections.pending_mode().unwrap();
2784 match &mut pending_mode {
2785 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2786 _ => {}
2787 }
2788
2789 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2790 s.set_pending(pending_selection, pending_mode)
2791 });
2792 }
2793
2794 fn begin_selection(
2795 &mut self,
2796 position: DisplayPoint,
2797 add: bool,
2798 click_count: usize,
2799 cx: &mut ViewContext<Self>,
2800 ) {
2801 if !self.focus_handle.is_focused(cx) {
2802 self.last_focused_descendant = None;
2803 cx.focus(&self.focus_handle);
2804 }
2805
2806 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2807 let buffer = &display_map.buffer_snapshot;
2808 let newest_selection = self.selections.newest_anchor().clone();
2809 let position = display_map.clip_point(position, Bias::Left);
2810
2811 let start;
2812 let end;
2813 let mode;
2814 let auto_scroll;
2815 match click_count {
2816 1 => {
2817 start = buffer.anchor_before(position.to_point(&display_map));
2818 end = start;
2819 mode = SelectMode::Character;
2820 auto_scroll = true;
2821 }
2822 2 => {
2823 let range = movement::surrounding_word(&display_map, position);
2824 start = buffer.anchor_before(range.start.to_point(&display_map));
2825 end = buffer.anchor_before(range.end.to_point(&display_map));
2826 mode = SelectMode::Word(start..end);
2827 auto_scroll = true;
2828 }
2829 3 => {
2830 let position = display_map
2831 .clip_point(position, Bias::Left)
2832 .to_point(&display_map);
2833 let line_start = display_map.prev_line_boundary(position).0;
2834 let next_line_start = buffer.clip_point(
2835 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2836 Bias::Left,
2837 );
2838 start = buffer.anchor_before(line_start);
2839 end = buffer.anchor_before(next_line_start);
2840 mode = SelectMode::Line(start..end);
2841 auto_scroll = true;
2842 }
2843 _ => {
2844 start = buffer.anchor_before(0);
2845 end = buffer.anchor_before(buffer.len());
2846 mode = SelectMode::All;
2847 auto_scroll = false;
2848 }
2849 }
2850
2851 let point_to_delete: Option<usize> = {
2852 let selected_points: Vec<Selection<Point>> =
2853 self.selections.disjoint_in_range(start..end, cx);
2854
2855 if !add || click_count > 1 {
2856 None
2857 } else if !selected_points.is_empty() {
2858 Some(selected_points[0].id)
2859 } else {
2860 let clicked_point_already_selected =
2861 self.selections.disjoint.iter().find(|selection| {
2862 selection.start.to_point(buffer) == start.to_point(buffer)
2863 || selection.end.to_point(buffer) == end.to_point(buffer)
2864 });
2865
2866 clicked_point_already_selected.map(|selection| selection.id)
2867 }
2868 };
2869
2870 let selections_count = self.selections.count();
2871
2872 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2873 if let Some(point_to_delete) = point_to_delete {
2874 s.delete(point_to_delete);
2875
2876 if selections_count == 1 {
2877 s.set_pending_anchor_range(start..end, mode);
2878 }
2879 } else {
2880 if !add {
2881 s.clear_disjoint();
2882 } else if click_count > 1 {
2883 s.delete(newest_selection.id)
2884 }
2885
2886 s.set_pending_anchor_range(start..end, mode);
2887 }
2888 });
2889 }
2890
2891 fn begin_columnar_selection(
2892 &mut self,
2893 position: DisplayPoint,
2894 goal_column: u32,
2895 reset: bool,
2896 cx: &mut ViewContext<Self>,
2897 ) {
2898 if !self.focus_handle.is_focused(cx) {
2899 self.last_focused_descendant = None;
2900 cx.focus(&self.focus_handle);
2901 }
2902
2903 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2904
2905 if reset {
2906 let pointer_position = display_map
2907 .buffer_snapshot
2908 .anchor_before(position.to_point(&display_map));
2909
2910 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2911 s.clear_disjoint();
2912 s.set_pending_anchor_range(
2913 pointer_position..pointer_position,
2914 SelectMode::Character,
2915 );
2916 });
2917 }
2918
2919 let tail = self.selections.newest::<Point>(cx).tail();
2920 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2921
2922 if !reset {
2923 self.select_columns(
2924 tail.to_display_point(&display_map),
2925 position,
2926 goal_column,
2927 &display_map,
2928 cx,
2929 );
2930 }
2931 }
2932
2933 fn update_selection(
2934 &mut self,
2935 position: DisplayPoint,
2936 goal_column: u32,
2937 scroll_delta: gpui::Point<f32>,
2938 cx: &mut ViewContext<Self>,
2939 ) {
2940 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2941
2942 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2943 let tail = tail.to_display_point(&display_map);
2944 self.select_columns(tail, position, goal_column, &display_map, cx);
2945 } else if let Some(mut pending) = self.selections.pending_anchor() {
2946 let buffer = self.buffer.read(cx).snapshot(cx);
2947 let head;
2948 let tail;
2949 let mode = self.selections.pending_mode().unwrap();
2950 match &mode {
2951 SelectMode::Character => {
2952 head = position.to_point(&display_map);
2953 tail = pending.tail().to_point(&buffer);
2954 }
2955 SelectMode::Word(original_range) => {
2956 let original_display_range = original_range.start.to_display_point(&display_map)
2957 ..original_range.end.to_display_point(&display_map);
2958 let original_buffer_range = original_display_range.start.to_point(&display_map)
2959 ..original_display_range.end.to_point(&display_map);
2960 if movement::is_inside_word(&display_map, position)
2961 || original_display_range.contains(&position)
2962 {
2963 let word_range = movement::surrounding_word(&display_map, position);
2964 if word_range.start < original_display_range.start {
2965 head = word_range.start.to_point(&display_map);
2966 } else {
2967 head = word_range.end.to_point(&display_map);
2968 }
2969 } else {
2970 head = position.to_point(&display_map);
2971 }
2972
2973 if head <= original_buffer_range.start {
2974 tail = original_buffer_range.end;
2975 } else {
2976 tail = original_buffer_range.start;
2977 }
2978 }
2979 SelectMode::Line(original_range) => {
2980 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2981
2982 let position = display_map
2983 .clip_point(position, Bias::Left)
2984 .to_point(&display_map);
2985 let line_start = display_map.prev_line_boundary(position).0;
2986 let next_line_start = buffer.clip_point(
2987 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2988 Bias::Left,
2989 );
2990
2991 if line_start < original_range.start {
2992 head = line_start
2993 } else {
2994 head = next_line_start
2995 }
2996
2997 if head <= original_range.start {
2998 tail = original_range.end;
2999 } else {
3000 tail = original_range.start;
3001 }
3002 }
3003 SelectMode::All => {
3004 return;
3005 }
3006 };
3007
3008 if head < tail {
3009 pending.start = buffer.anchor_before(head);
3010 pending.end = buffer.anchor_before(tail);
3011 pending.reversed = true;
3012 } else {
3013 pending.start = buffer.anchor_before(tail);
3014 pending.end = buffer.anchor_before(head);
3015 pending.reversed = false;
3016 }
3017
3018 self.change_selections(None, cx, |s| {
3019 s.set_pending(pending, mode);
3020 });
3021 } else {
3022 log::error!("update_selection dispatched with no pending selection");
3023 return;
3024 }
3025
3026 self.apply_scroll_delta(scroll_delta, cx);
3027 cx.notify();
3028 }
3029
3030 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
3031 self.columnar_selection_tail.take();
3032 if self.selections.pending_anchor().is_some() {
3033 let selections = self.selections.all::<usize>(cx);
3034 self.change_selections(None, cx, |s| {
3035 s.select(selections);
3036 s.clear_pending();
3037 });
3038 }
3039 }
3040
3041 fn select_columns(
3042 &mut self,
3043 tail: DisplayPoint,
3044 head: DisplayPoint,
3045 goal_column: u32,
3046 display_map: &DisplaySnapshot,
3047 cx: &mut ViewContext<Self>,
3048 ) {
3049 let start_row = cmp::min(tail.row(), head.row());
3050 let end_row = cmp::max(tail.row(), head.row());
3051 let start_column = cmp::min(tail.column(), goal_column);
3052 let end_column = cmp::max(tail.column(), goal_column);
3053 let reversed = start_column < tail.column();
3054
3055 let selection_ranges = (start_row.0..=end_row.0)
3056 .map(DisplayRow)
3057 .filter_map(|row| {
3058 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
3059 let start = display_map
3060 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
3061 .to_point(display_map);
3062 let end = display_map
3063 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
3064 .to_point(display_map);
3065 if reversed {
3066 Some(end..start)
3067 } else {
3068 Some(start..end)
3069 }
3070 } else {
3071 None
3072 }
3073 })
3074 .collect::<Vec<_>>();
3075
3076 self.change_selections(None, cx, |s| {
3077 s.select_ranges(selection_ranges);
3078 });
3079 cx.notify();
3080 }
3081
3082 pub fn has_pending_nonempty_selection(&self) -> bool {
3083 let pending_nonempty_selection = match self.selections.pending_anchor() {
3084 Some(Selection { start, end, .. }) => start != end,
3085 None => false,
3086 };
3087
3088 pending_nonempty_selection
3089 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
3090 }
3091
3092 pub fn has_pending_selection(&self) -> bool {
3093 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
3094 }
3095
3096 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
3097 if self.clear_expanded_diff_hunks(cx) {
3098 cx.notify();
3099 return;
3100 }
3101 if self.dismiss_menus_and_popups(true, cx) {
3102 return;
3103 }
3104
3105 if self.mode == EditorMode::Full
3106 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3107 {
3108 return;
3109 }
3110
3111 cx.propagate();
3112 }
3113
3114 pub fn dismiss_menus_and_popups(
3115 &mut self,
3116 should_report_inline_completion_event: bool,
3117 cx: &mut ViewContext<Self>,
3118 ) -> bool {
3119 if self.take_rename(false, cx).is_some() {
3120 return true;
3121 }
3122
3123 if hide_hover(self, cx) {
3124 return true;
3125 }
3126
3127 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3128 return true;
3129 }
3130
3131 if self.hide_context_menu(cx).is_some() {
3132 return true;
3133 }
3134
3135 if self.mouse_context_menu.take().is_some() {
3136 return true;
3137 }
3138
3139 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3140 return true;
3141 }
3142
3143 if self.snippet_stack.pop().is_some() {
3144 return true;
3145 }
3146
3147 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3148 self.dismiss_diagnostics(cx);
3149 return true;
3150 }
3151
3152 false
3153 }
3154
3155 fn linked_editing_ranges_for(
3156 &self,
3157 selection: Range<text::Anchor>,
3158 cx: &AppContext,
3159 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3160 if self.linked_edit_ranges.is_empty() {
3161 return None;
3162 }
3163 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3164 selection.end.buffer_id.and_then(|end_buffer_id| {
3165 if selection.start.buffer_id != Some(end_buffer_id) {
3166 return None;
3167 }
3168 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3169 let snapshot = buffer.read(cx).snapshot();
3170 self.linked_edit_ranges
3171 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3172 .map(|ranges| (ranges, snapshot, buffer))
3173 })?;
3174 use text::ToOffset as TO;
3175 // find offset from the start of current range to current cursor position
3176 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3177
3178 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3179 let start_difference = start_offset - start_byte_offset;
3180 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3181 let end_difference = end_offset - start_byte_offset;
3182 // Current range has associated linked ranges.
3183 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3184 for range in linked_ranges.iter() {
3185 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3186 let end_offset = start_offset + end_difference;
3187 let start_offset = start_offset + start_difference;
3188 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3189 continue;
3190 }
3191 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3192 if s.start.buffer_id != selection.start.buffer_id
3193 || s.end.buffer_id != selection.end.buffer_id
3194 {
3195 return false;
3196 }
3197 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3198 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3199 }) {
3200 continue;
3201 }
3202 let start = buffer_snapshot.anchor_after(start_offset);
3203 let end = buffer_snapshot.anchor_after(end_offset);
3204 linked_edits
3205 .entry(buffer.clone())
3206 .or_default()
3207 .push(start..end);
3208 }
3209 Some(linked_edits)
3210 }
3211
3212 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3213 let text: Arc<str> = text.into();
3214
3215 if self.read_only(cx) {
3216 return;
3217 }
3218
3219 let selections = self.selections.all_adjusted(cx);
3220 let mut bracket_inserted = false;
3221 let mut edits = Vec::new();
3222 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3223 let mut new_selections = Vec::with_capacity(selections.len());
3224 let mut new_autoclose_regions = Vec::new();
3225 let snapshot = self.buffer.read(cx).read(cx);
3226
3227 for (selection, autoclose_region) in
3228 self.selections_with_autoclose_regions(selections, &snapshot)
3229 {
3230 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3231 // Determine if the inserted text matches the opening or closing
3232 // bracket of any of this language's bracket pairs.
3233 let mut bracket_pair = None;
3234 let mut is_bracket_pair_start = false;
3235 let mut is_bracket_pair_end = false;
3236 if !text.is_empty() {
3237 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3238 // and they are removing the character that triggered IME popup.
3239 for (pair, enabled) in scope.brackets() {
3240 if !pair.close && !pair.surround {
3241 continue;
3242 }
3243
3244 if enabled && pair.start.ends_with(text.as_ref()) {
3245 bracket_pair = Some(pair.clone());
3246 is_bracket_pair_start = true;
3247 break;
3248 }
3249 if pair.end.as_str() == text.as_ref() {
3250 bracket_pair = Some(pair.clone());
3251 is_bracket_pair_end = true;
3252 break;
3253 }
3254 }
3255 }
3256
3257 if let Some(bracket_pair) = bracket_pair {
3258 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3259 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3260 let auto_surround =
3261 self.use_auto_surround && snapshot_settings.use_auto_surround;
3262 if selection.is_empty() {
3263 if is_bracket_pair_start {
3264 let prefix_len = bracket_pair.start.len() - text.len();
3265
3266 // If the inserted text is a suffix of an opening bracket and the
3267 // selection is preceded by the rest of the opening bracket, then
3268 // insert the closing bracket.
3269 let following_text_allows_autoclose = snapshot
3270 .chars_at(selection.start)
3271 .next()
3272 .map_or(true, |c| scope.should_autoclose_before(c));
3273 let preceding_text_matches_prefix = prefix_len == 0
3274 || (selection.start.column >= (prefix_len as u32)
3275 && snapshot.contains_str_at(
3276 Point::new(
3277 selection.start.row,
3278 selection.start.column - (prefix_len as u32),
3279 ),
3280 &bracket_pair.start[..prefix_len],
3281 ));
3282
3283 if autoclose
3284 && bracket_pair.close
3285 && following_text_allows_autoclose
3286 && preceding_text_matches_prefix
3287 {
3288 let anchor = snapshot.anchor_before(selection.end);
3289 new_selections.push((selection.map(|_| anchor), text.len()));
3290 new_autoclose_regions.push((
3291 anchor,
3292 text.len(),
3293 selection.id,
3294 bracket_pair.clone(),
3295 ));
3296 edits.push((
3297 selection.range(),
3298 format!("{}{}", text, bracket_pair.end).into(),
3299 ));
3300 bracket_inserted = true;
3301 continue;
3302 }
3303 }
3304
3305 if let Some(region) = autoclose_region {
3306 // If the selection is followed by an auto-inserted closing bracket,
3307 // then don't insert that closing bracket again; just move the selection
3308 // past the closing bracket.
3309 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3310 && text.as_ref() == region.pair.end.as_str();
3311 if should_skip {
3312 let anchor = snapshot.anchor_after(selection.end);
3313 new_selections
3314 .push((selection.map(|_| anchor), region.pair.end.len()));
3315 continue;
3316 }
3317 }
3318
3319 let always_treat_brackets_as_autoclosed = snapshot
3320 .settings_at(selection.start, cx)
3321 .always_treat_brackets_as_autoclosed;
3322 if always_treat_brackets_as_autoclosed
3323 && is_bracket_pair_end
3324 && snapshot.contains_str_at(selection.end, text.as_ref())
3325 {
3326 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3327 // and the inserted text is a closing bracket and the selection is followed
3328 // by the closing bracket then move the selection past the closing bracket.
3329 let anchor = snapshot.anchor_after(selection.end);
3330 new_selections.push((selection.map(|_| anchor), text.len()));
3331 continue;
3332 }
3333 }
3334 // If an opening bracket is 1 character long and is typed while
3335 // text is selected, then surround that text with the bracket pair.
3336 else if auto_surround
3337 && bracket_pair.surround
3338 && is_bracket_pair_start
3339 && bracket_pair.start.chars().count() == 1
3340 {
3341 edits.push((selection.start..selection.start, text.clone()));
3342 edits.push((
3343 selection.end..selection.end,
3344 bracket_pair.end.as_str().into(),
3345 ));
3346 bracket_inserted = true;
3347 new_selections.push((
3348 Selection {
3349 id: selection.id,
3350 start: snapshot.anchor_after(selection.start),
3351 end: snapshot.anchor_before(selection.end),
3352 reversed: selection.reversed,
3353 goal: selection.goal,
3354 },
3355 0,
3356 ));
3357 continue;
3358 }
3359 }
3360 }
3361
3362 if self.auto_replace_emoji_shortcode
3363 && selection.is_empty()
3364 && text.as_ref().ends_with(':')
3365 {
3366 if let Some(possible_emoji_short_code) =
3367 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3368 {
3369 if !possible_emoji_short_code.is_empty() {
3370 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3371 let emoji_shortcode_start = Point::new(
3372 selection.start.row,
3373 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3374 );
3375
3376 // Remove shortcode from buffer
3377 edits.push((
3378 emoji_shortcode_start..selection.start,
3379 "".to_string().into(),
3380 ));
3381 new_selections.push((
3382 Selection {
3383 id: selection.id,
3384 start: snapshot.anchor_after(emoji_shortcode_start),
3385 end: snapshot.anchor_before(selection.start),
3386 reversed: selection.reversed,
3387 goal: selection.goal,
3388 },
3389 0,
3390 ));
3391
3392 // Insert emoji
3393 let selection_start_anchor = snapshot.anchor_after(selection.start);
3394 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3395 edits.push((selection.start..selection.end, emoji.to_string().into()));
3396
3397 continue;
3398 }
3399 }
3400 }
3401 }
3402
3403 // If not handling any auto-close operation, then just replace the selected
3404 // text with the given input and move the selection to the end of the
3405 // newly inserted text.
3406 let anchor = snapshot.anchor_after(selection.end);
3407 if !self.linked_edit_ranges.is_empty() {
3408 let start_anchor = snapshot.anchor_before(selection.start);
3409
3410 let is_word_char = text.chars().next().map_or(true, |char| {
3411 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3412 classifier.is_word(char)
3413 });
3414
3415 if is_word_char {
3416 if let Some(ranges) = self
3417 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3418 {
3419 for (buffer, edits) in ranges {
3420 linked_edits
3421 .entry(buffer.clone())
3422 .or_default()
3423 .extend(edits.into_iter().map(|range| (range, text.clone())));
3424 }
3425 }
3426 }
3427 }
3428
3429 new_selections.push((selection.map(|_| anchor), 0));
3430 edits.push((selection.start..selection.end, text.clone()));
3431 }
3432
3433 drop(snapshot);
3434
3435 self.transact(cx, |this, cx| {
3436 this.buffer.update(cx, |buffer, cx| {
3437 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3438 });
3439 for (buffer, edits) in linked_edits {
3440 buffer.update(cx, |buffer, cx| {
3441 let snapshot = buffer.snapshot();
3442 let edits = edits
3443 .into_iter()
3444 .map(|(range, text)| {
3445 use text::ToPoint as TP;
3446 let end_point = TP::to_point(&range.end, &snapshot);
3447 let start_point = TP::to_point(&range.start, &snapshot);
3448 (start_point..end_point, text)
3449 })
3450 .sorted_by_key(|(range, _)| range.start)
3451 .collect::<Vec<_>>();
3452 buffer.edit(edits, None, cx);
3453 })
3454 }
3455 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3456 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3457 let snapshot = this.buffer.read(cx).read(cx);
3458 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
3459 .zip(new_selection_deltas)
3460 .map(|(selection, delta)| Selection {
3461 id: selection.id,
3462 start: selection.start + delta,
3463 end: selection.end + delta,
3464 reversed: selection.reversed,
3465 goal: SelectionGoal::None,
3466 })
3467 .collect::<Vec<_>>();
3468
3469 let mut i = 0;
3470 for (position, delta, selection_id, pair) in new_autoclose_regions {
3471 let position = position.to_offset(&snapshot) + delta;
3472 let start = snapshot.anchor_before(position);
3473 let end = snapshot.anchor_after(position);
3474 while let Some(existing_state) = this.autoclose_regions.get(i) {
3475 match existing_state.range.start.cmp(&start, &snapshot) {
3476 Ordering::Less => i += 1,
3477 Ordering::Greater => break,
3478 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
3479 Ordering::Less => i += 1,
3480 Ordering::Equal => break,
3481 Ordering::Greater => break,
3482 },
3483 }
3484 }
3485 this.autoclose_regions.insert(
3486 i,
3487 AutocloseRegion {
3488 selection_id,
3489 range: start..end,
3490 pair,
3491 },
3492 );
3493 }
3494
3495 drop(snapshot);
3496 let had_active_inline_completion = this.has_active_inline_completion(cx);
3497 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3498 s.select(new_selections)
3499 });
3500
3501 if !bracket_inserted {
3502 if let Some(on_type_format_task) =
3503 this.trigger_on_type_formatting(text.to_string(), cx)
3504 {
3505 on_type_format_task.detach_and_log_err(cx);
3506 }
3507 }
3508
3509 let editor_settings = EditorSettings::get_global(cx);
3510 if bracket_inserted
3511 && (editor_settings.auto_signature_help
3512 || editor_settings.show_signature_help_after_edits)
3513 {
3514 this.show_signature_help(&ShowSignatureHelp, cx);
3515 }
3516
3517 let trigger_in_words = !had_active_inline_completion;
3518 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3519 linked_editing_ranges::refresh_linked_ranges(this, cx);
3520 this.refresh_inline_completion(true, false, cx);
3521 });
3522 }
3523
3524 fn find_possible_emoji_shortcode_at_position(
3525 snapshot: &MultiBufferSnapshot,
3526 position: Point,
3527 ) -> Option<String> {
3528 let mut chars = Vec::new();
3529 let mut found_colon = false;
3530 for char in snapshot.reversed_chars_at(position).take(100) {
3531 // Found a possible emoji shortcode in the middle of the buffer
3532 if found_colon {
3533 if char.is_whitespace() {
3534 chars.reverse();
3535 return Some(chars.iter().collect());
3536 }
3537 // If the previous character is not a whitespace, we are in the middle of a word
3538 // and we only want to complete the shortcode if the word is made up of other emojis
3539 let mut containing_word = String::new();
3540 for ch in snapshot
3541 .reversed_chars_at(position)
3542 .skip(chars.len() + 1)
3543 .take(100)
3544 {
3545 if ch.is_whitespace() {
3546 break;
3547 }
3548 containing_word.push(ch);
3549 }
3550 let containing_word = containing_word.chars().rev().collect::<String>();
3551 if util::word_consists_of_emojis(containing_word.as_str()) {
3552 chars.reverse();
3553 return Some(chars.iter().collect());
3554 }
3555 }
3556
3557 if char.is_whitespace() || !char.is_ascii() {
3558 return None;
3559 }
3560 if char == ':' {
3561 found_colon = true;
3562 } else {
3563 chars.push(char);
3564 }
3565 }
3566 // Found a possible emoji shortcode at the beginning of the buffer
3567 chars.reverse();
3568 Some(chars.iter().collect())
3569 }
3570
3571 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3572 self.transact(cx, |this, cx| {
3573 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3574 let selections = this.selections.all::<usize>(cx);
3575 let multi_buffer = this.buffer.read(cx);
3576 let buffer = multi_buffer.snapshot(cx);
3577 selections
3578 .iter()
3579 .map(|selection| {
3580 let start_point = selection.start.to_point(&buffer);
3581 let mut indent =
3582 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3583 indent.len = cmp::min(indent.len, start_point.column);
3584 let start = selection.start;
3585 let end = selection.end;
3586 let selection_is_empty = start == end;
3587 let language_scope = buffer.language_scope_at(start);
3588 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3589 &language_scope
3590 {
3591 let leading_whitespace_len = buffer
3592 .reversed_chars_at(start)
3593 .take_while(|c| c.is_whitespace() && *c != '\n')
3594 .map(|c| c.len_utf8())
3595 .sum::<usize>();
3596
3597 let trailing_whitespace_len = buffer
3598 .chars_at(end)
3599 .take_while(|c| c.is_whitespace() && *c != '\n')
3600 .map(|c| c.len_utf8())
3601 .sum::<usize>();
3602
3603 let insert_extra_newline =
3604 language.brackets().any(|(pair, enabled)| {
3605 let pair_start = pair.start.trim_end();
3606 let pair_end = pair.end.trim_start();
3607
3608 enabled
3609 && pair.newline
3610 && buffer.contains_str_at(
3611 end + trailing_whitespace_len,
3612 pair_end,
3613 )
3614 && buffer.contains_str_at(
3615 (start - leading_whitespace_len)
3616 .saturating_sub(pair_start.len()),
3617 pair_start,
3618 )
3619 });
3620
3621 // Comment extension on newline is allowed only for cursor selections
3622 let comment_delimiter = maybe!({
3623 if !selection_is_empty {
3624 return None;
3625 }
3626
3627 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3628 return None;
3629 }
3630
3631 let delimiters = language.line_comment_prefixes();
3632 let max_len_of_delimiter =
3633 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3634 let (snapshot, range) =
3635 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3636
3637 let mut index_of_first_non_whitespace = 0;
3638 let comment_candidate = snapshot
3639 .chars_for_range(range)
3640 .skip_while(|c| {
3641 let should_skip = c.is_whitespace();
3642 if should_skip {
3643 index_of_first_non_whitespace += 1;
3644 }
3645 should_skip
3646 })
3647 .take(max_len_of_delimiter)
3648 .collect::<String>();
3649 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3650 comment_candidate.starts_with(comment_prefix.as_ref())
3651 })?;
3652 let cursor_is_placed_after_comment_marker =
3653 index_of_first_non_whitespace + comment_prefix.len()
3654 <= start_point.column as usize;
3655 if cursor_is_placed_after_comment_marker {
3656 Some(comment_prefix.clone())
3657 } else {
3658 None
3659 }
3660 });
3661 (comment_delimiter, insert_extra_newline)
3662 } else {
3663 (None, false)
3664 };
3665
3666 let capacity_for_delimiter = comment_delimiter
3667 .as_deref()
3668 .map(str::len)
3669 .unwrap_or_default();
3670 let mut new_text =
3671 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3672 new_text.push('\n');
3673 new_text.extend(indent.chars());
3674 if let Some(delimiter) = &comment_delimiter {
3675 new_text.push_str(delimiter);
3676 }
3677 if insert_extra_newline {
3678 new_text = new_text.repeat(2);
3679 }
3680
3681 let anchor = buffer.anchor_after(end);
3682 let new_selection = selection.map(|_| anchor);
3683 (
3684 (start..end, new_text),
3685 (insert_extra_newline, new_selection),
3686 )
3687 })
3688 .unzip()
3689 };
3690
3691 this.edit_with_autoindent(edits, cx);
3692 let buffer = this.buffer.read(cx).snapshot(cx);
3693 let new_selections = selection_fixup_info
3694 .into_iter()
3695 .map(|(extra_newline_inserted, new_selection)| {
3696 let mut cursor = new_selection.end.to_point(&buffer);
3697 if extra_newline_inserted {
3698 cursor.row -= 1;
3699 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3700 }
3701 new_selection.map(|_| cursor)
3702 })
3703 .collect();
3704
3705 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3706 this.refresh_inline_completion(true, false, cx);
3707 });
3708 }
3709
3710 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3711 let buffer = self.buffer.read(cx);
3712 let snapshot = buffer.snapshot(cx);
3713
3714 let mut edits = Vec::new();
3715 let mut rows = Vec::new();
3716
3717 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3718 let cursor = selection.head();
3719 let row = cursor.row;
3720
3721 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3722
3723 let newline = "\n".to_string();
3724 edits.push((start_of_line..start_of_line, newline));
3725
3726 rows.push(row + rows_inserted as u32);
3727 }
3728
3729 self.transact(cx, |editor, cx| {
3730 editor.edit(edits, cx);
3731
3732 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3733 let mut index = 0;
3734 s.move_cursors_with(|map, _, _| {
3735 let row = rows[index];
3736 index += 1;
3737
3738 let point = Point::new(row, 0);
3739 let boundary = map.next_line_boundary(point).1;
3740 let clipped = map.clip_point(boundary, Bias::Left);
3741
3742 (clipped, SelectionGoal::None)
3743 });
3744 });
3745
3746 let mut indent_edits = Vec::new();
3747 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3748 for row in rows {
3749 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3750 for (row, indent) in indents {
3751 if indent.len == 0 {
3752 continue;
3753 }
3754
3755 let text = match indent.kind {
3756 IndentKind::Space => " ".repeat(indent.len as usize),
3757 IndentKind::Tab => "\t".repeat(indent.len as usize),
3758 };
3759 let point = Point::new(row.0, 0);
3760 indent_edits.push((point..point, text));
3761 }
3762 }
3763 editor.edit(indent_edits, cx);
3764 });
3765 }
3766
3767 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3768 let buffer = self.buffer.read(cx);
3769 let snapshot = buffer.snapshot(cx);
3770
3771 let mut edits = Vec::new();
3772 let mut rows = Vec::new();
3773 let mut rows_inserted = 0;
3774
3775 for selection in self.selections.all_adjusted(cx) {
3776 let cursor = selection.head();
3777 let row = cursor.row;
3778
3779 let point = Point::new(row + 1, 0);
3780 let start_of_line = snapshot.clip_point(point, Bias::Left);
3781
3782 let newline = "\n".to_string();
3783 edits.push((start_of_line..start_of_line, newline));
3784
3785 rows_inserted += 1;
3786 rows.push(row + rows_inserted);
3787 }
3788
3789 self.transact(cx, |editor, cx| {
3790 editor.edit(edits, cx);
3791
3792 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3793 let mut index = 0;
3794 s.move_cursors_with(|map, _, _| {
3795 let row = rows[index];
3796 index += 1;
3797
3798 let point = Point::new(row, 0);
3799 let boundary = map.next_line_boundary(point).1;
3800 let clipped = map.clip_point(boundary, Bias::Left);
3801
3802 (clipped, SelectionGoal::None)
3803 });
3804 });
3805
3806 let mut indent_edits = Vec::new();
3807 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3808 for row in rows {
3809 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3810 for (row, indent) in indents {
3811 if indent.len == 0 {
3812 continue;
3813 }
3814
3815 let text = match indent.kind {
3816 IndentKind::Space => " ".repeat(indent.len as usize),
3817 IndentKind::Tab => "\t".repeat(indent.len as usize),
3818 };
3819 let point = Point::new(row.0, 0);
3820 indent_edits.push((point..point, text));
3821 }
3822 }
3823 editor.edit(indent_edits, cx);
3824 });
3825 }
3826
3827 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3828 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3829 original_indent_columns: Vec::new(),
3830 });
3831 self.insert_with_autoindent_mode(text, autoindent, cx);
3832 }
3833
3834 fn insert_with_autoindent_mode(
3835 &mut self,
3836 text: &str,
3837 autoindent_mode: Option<AutoindentMode>,
3838 cx: &mut ViewContext<Self>,
3839 ) {
3840 if self.read_only(cx) {
3841 return;
3842 }
3843
3844 let text: Arc<str> = text.into();
3845 self.transact(cx, |this, cx| {
3846 let old_selections = this.selections.all_adjusted(cx);
3847 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3848 let anchors = {
3849 let snapshot = buffer.read(cx);
3850 old_selections
3851 .iter()
3852 .map(|s| {
3853 let anchor = snapshot.anchor_after(s.head());
3854 s.map(|_| anchor)
3855 })
3856 .collect::<Vec<_>>()
3857 };
3858 buffer.edit(
3859 old_selections
3860 .iter()
3861 .map(|s| (s.start..s.end, text.clone())),
3862 autoindent_mode,
3863 cx,
3864 );
3865 anchors
3866 });
3867
3868 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3869 s.select_anchors(selection_anchors);
3870 })
3871 });
3872 }
3873
3874 fn trigger_completion_on_input(
3875 &mut self,
3876 text: &str,
3877 trigger_in_words: bool,
3878 cx: &mut ViewContext<Self>,
3879 ) {
3880 if self.is_completion_trigger(text, trigger_in_words, cx) {
3881 self.show_completions(
3882 &ShowCompletions {
3883 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3884 },
3885 cx,
3886 );
3887 } else {
3888 self.hide_context_menu(cx);
3889 }
3890 }
3891
3892 fn is_completion_trigger(
3893 &self,
3894 text: &str,
3895 trigger_in_words: bool,
3896 cx: &mut ViewContext<Self>,
3897 ) -> bool {
3898 let position = self.selections.newest_anchor().head();
3899 let multibuffer = self.buffer.read(cx);
3900 let Some(buffer) = position
3901 .buffer_id
3902 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3903 else {
3904 return false;
3905 };
3906
3907 if let Some(completion_provider) = &self.completion_provider {
3908 completion_provider.is_completion_trigger(
3909 &buffer,
3910 position.text_anchor,
3911 text,
3912 trigger_in_words,
3913 cx,
3914 )
3915 } else {
3916 false
3917 }
3918 }
3919
3920 /// If any empty selections is touching the start of its innermost containing autoclose
3921 /// region, expand it to select the brackets.
3922 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3923 let selections = self.selections.all::<usize>(cx);
3924 let buffer = self.buffer.read(cx).read(cx);
3925 let new_selections = self
3926 .selections_with_autoclose_regions(selections, &buffer)
3927 .map(|(mut selection, region)| {
3928 if !selection.is_empty() {
3929 return selection;
3930 }
3931
3932 if let Some(region) = region {
3933 let mut range = region.range.to_offset(&buffer);
3934 if selection.start == range.start && range.start >= region.pair.start.len() {
3935 range.start -= region.pair.start.len();
3936 if buffer.contains_str_at(range.start, ®ion.pair.start)
3937 && buffer.contains_str_at(range.end, ®ion.pair.end)
3938 {
3939 range.end += region.pair.end.len();
3940 selection.start = range.start;
3941 selection.end = range.end;
3942
3943 return selection;
3944 }
3945 }
3946 }
3947
3948 let always_treat_brackets_as_autoclosed = buffer
3949 .settings_at(selection.start, cx)
3950 .always_treat_brackets_as_autoclosed;
3951
3952 if !always_treat_brackets_as_autoclosed {
3953 return selection;
3954 }
3955
3956 if let Some(scope) = buffer.language_scope_at(selection.start) {
3957 for (pair, enabled) in scope.brackets() {
3958 if !enabled || !pair.close {
3959 continue;
3960 }
3961
3962 if buffer.contains_str_at(selection.start, &pair.end) {
3963 let pair_start_len = pair.start.len();
3964 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3965 {
3966 selection.start -= pair_start_len;
3967 selection.end += pair.end.len();
3968
3969 return selection;
3970 }
3971 }
3972 }
3973 }
3974
3975 selection
3976 })
3977 .collect();
3978
3979 drop(buffer);
3980 self.change_selections(None, cx, |selections| selections.select(new_selections));
3981 }
3982
3983 /// Iterate the given selections, and for each one, find the smallest surrounding
3984 /// autoclose region. This uses the ordering of the selections and the autoclose
3985 /// regions to avoid repeated comparisons.
3986 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3987 &'a self,
3988 selections: impl IntoIterator<Item = Selection<D>>,
3989 buffer: &'a MultiBufferSnapshot,
3990 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3991 let mut i = 0;
3992 let mut regions = self.autoclose_regions.as_slice();
3993 selections.into_iter().map(move |selection| {
3994 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3995
3996 let mut enclosing = None;
3997 while let Some(pair_state) = regions.get(i) {
3998 if pair_state.range.end.to_offset(buffer) < range.start {
3999 regions = ®ions[i + 1..];
4000 i = 0;
4001 } else if pair_state.range.start.to_offset(buffer) > range.end {
4002 break;
4003 } else {
4004 if pair_state.selection_id == selection.id {
4005 enclosing = Some(pair_state);
4006 }
4007 i += 1;
4008 }
4009 }
4010
4011 (selection.clone(), enclosing)
4012 })
4013 }
4014
4015 /// Remove any autoclose regions that no longer contain their selection.
4016 fn invalidate_autoclose_regions(
4017 &mut self,
4018 mut selections: &[Selection<Anchor>],
4019 buffer: &MultiBufferSnapshot,
4020 ) {
4021 self.autoclose_regions.retain(|state| {
4022 let mut i = 0;
4023 while let Some(selection) = selections.get(i) {
4024 if selection.end.cmp(&state.range.start, buffer).is_lt() {
4025 selections = &selections[1..];
4026 continue;
4027 }
4028 if selection.start.cmp(&state.range.end, buffer).is_gt() {
4029 break;
4030 }
4031 if selection.id == state.selection_id {
4032 return true;
4033 } else {
4034 i += 1;
4035 }
4036 }
4037 false
4038 });
4039 }
4040
4041 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
4042 let offset = position.to_offset(buffer);
4043 let (word_range, kind) = buffer.surrounding_word(offset, true);
4044 if offset > word_range.start && kind == Some(CharKind::Word) {
4045 Some(
4046 buffer
4047 .text_for_range(word_range.start..offset)
4048 .collect::<String>(),
4049 )
4050 } else {
4051 None
4052 }
4053 }
4054
4055 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
4056 self.refresh_inlay_hints(
4057 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
4058 cx,
4059 );
4060 }
4061
4062 pub fn inlay_hints_enabled(&self) -> bool {
4063 self.inlay_hint_cache.enabled
4064 }
4065
4066 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
4067 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
4068 return;
4069 }
4070
4071 let reason_description = reason.description();
4072 let ignore_debounce = matches!(
4073 reason,
4074 InlayHintRefreshReason::SettingsChange(_)
4075 | InlayHintRefreshReason::Toggle(_)
4076 | InlayHintRefreshReason::ExcerptsRemoved(_)
4077 );
4078 let (invalidate_cache, required_languages) = match reason {
4079 InlayHintRefreshReason::Toggle(enabled) => {
4080 self.inlay_hint_cache.enabled = enabled;
4081 if enabled {
4082 (InvalidationStrategy::RefreshRequested, None)
4083 } else {
4084 self.inlay_hint_cache.clear();
4085 self.splice_inlays(
4086 self.visible_inlay_hints(cx)
4087 .iter()
4088 .map(|inlay| inlay.id)
4089 .collect(),
4090 Vec::new(),
4091 cx,
4092 );
4093 return;
4094 }
4095 }
4096 InlayHintRefreshReason::SettingsChange(new_settings) => {
4097 match self.inlay_hint_cache.update_settings(
4098 &self.buffer,
4099 new_settings,
4100 self.visible_inlay_hints(cx),
4101 cx,
4102 ) {
4103 ControlFlow::Break(Some(InlaySplice {
4104 to_remove,
4105 to_insert,
4106 })) => {
4107 self.splice_inlays(to_remove, to_insert, cx);
4108 return;
4109 }
4110 ControlFlow::Break(None) => return,
4111 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4112 }
4113 }
4114 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4115 if let Some(InlaySplice {
4116 to_remove,
4117 to_insert,
4118 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4119 {
4120 self.splice_inlays(to_remove, to_insert, cx);
4121 }
4122 return;
4123 }
4124 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4125 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4126 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4127 }
4128 InlayHintRefreshReason::RefreshRequested => {
4129 (InvalidationStrategy::RefreshRequested, None)
4130 }
4131 };
4132
4133 if let Some(InlaySplice {
4134 to_remove,
4135 to_insert,
4136 }) = self.inlay_hint_cache.spawn_hint_refresh(
4137 reason_description,
4138 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4139 invalidate_cache,
4140 ignore_debounce,
4141 cx,
4142 ) {
4143 self.splice_inlays(to_remove, to_insert, cx);
4144 }
4145 }
4146
4147 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4148 self.display_map
4149 .read(cx)
4150 .current_inlays()
4151 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4152 .cloned()
4153 .collect()
4154 }
4155
4156 pub fn excerpts_for_inlay_hints_query(
4157 &self,
4158 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4159 cx: &mut ViewContext<Editor>,
4160 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4161 let Some(project) = self.project.as_ref() else {
4162 return HashMap::default();
4163 };
4164 let project = project.read(cx);
4165 let multi_buffer = self.buffer().read(cx);
4166 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4167 let multi_buffer_visible_start = self
4168 .scroll_manager
4169 .anchor()
4170 .anchor
4171 .to_point(&multi_buffer_snapshot);
4172 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4173 multi_buffer_visible_start
4174 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4175 Bias::Left,
4176 );
4177 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4178 multi_buffer
4179 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4180 .into_iter()
4181 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4182 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4183 let buffer = buffer_handle.read(cx);
4184 let buffer_file = project::File::from_dyn(buffer.file())?;
4185 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4186 let worktree_entry = buffer_worktree
4187 .read(cx)
4188 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4189 if worktree_entry.is_ignored {
4190 return None;
4191 }
4192
4193 let language = buffer.language()?;
4194 if let Some(restrict_to_languages) = restrict_to_languages {
4195 if !restrict_to_languages.contains(language) {
4196 return None;
4197 }
4198 }
4199 Some((
4200 excerpt_id,
4201 (
4202 buffer_handle,
4203 buffer.version().clone(),
4204 excerpt_visible_range,
4205 ),
4206 ))
4207 })
4208 .collect()
4209 }
4210
4211 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4212 TextLayoutDetails {
4213 text_system: cx.text_system().clone(),
4214 editor_style: self.style.clone().unwrap(),
4215 rem_size: cx.rem_size(),
4216 scroll_anchor: self.scroll_manager.anchor(),
4217 visible_rows: self.visible_line_count(),
4218 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4219 }
4220 }
4221
4222 fn splice_inlays(
4223 &self,
4224 to_remove: Vec<InlayId>,
4225 to_insert: Vec<Inlay>,
4226 cx: &mut ViewContext<Self>,
4227 ) {
4228 self.display_map.update(cx, |display_map, cx| {
4229 display_map.splice_inlays(to_remove, to_insert, cx);
4230 });
4231 cx.notify();
4232 }
4233
4234 fn trigger_on_type_formatting(
4235 &self,
4236 input: String,
4237 cx: &mut ViewContext<Self>,
4238 ) -> Option<Task<Result<()>>> {
4239 if input.len() != 1 {
4240 return None;
4241 }
4242
4243 let project = self.project.as_ref()?;
4244 let position = self.selections.newest_anchor().head();
4245 let (buffer, buffer_position) = self
4246 .buffer
4247 .read(cx)
4248 .text_anchor_for_position(position, cx)?;
4249
4250 let settings = language_settings::language_settings(
4251 buffer.read(cx).language_at(buffer_position).as_ref(),
4252 buffer.read(cx).file(),
4253 cx,
4254 );
4255 if !settings.use_on_type_format {
4256 return None;
4257 }
4258
4259 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4260 // hence we do LSP request & edit on host side only — add formats to host's history.
4261 let push_to_lsp_host_history = true;
4262 // If this is not the host, append its history with new edits.
4263 let push_to_client_history = project.read(cx).is_via_collab();
4264
4265 let on_type_formatting = project.update(cx, |project, cx| {
4266 project.on_type_format(
4267 buffer.clone(),
4268 buffer_position,
4269 input,
4270 push_to_lsp_host_history,
4271 cx,
4272 )
4273 });
4274 Some(cx.spawn(|editor, mut cx| async move {
4275 if let Some(transaction) = on_type_formatting.await? {
4276 if push_to_client_history {
4277 buffer
4278 .update(&mut cx, |buffer, _| {
4279 buffer.push_transaction(transaction, Instant::now());
4280 })
4281 .ok();
4282 }
4283 editor.update(&mut cx, |editor, cx| {
4284 editor.refresh_document_highlights(cx);
4285 })?;
4286 }
4287 Ok(())
4288 }))
4289 }
4290
4291 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4292 if self.pending_rename.is_some() {
4293 return;
4294 }
4295
4296 let Some(provider) = self.completion_provider.as_ref() else {
4297 return;
4298 };
4299
4300 let position = self.selections.newest_anchor().head();
4301 let (buffer, buffer_position) =
4302 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4303 output
4304 } else {
4305 return;
4306 };
4307
4308 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4309 let is_followup_invoke = {
4310 let context_menu_state = self.context_menu.read();
4311 matches!(
4312 context_menu_state.deref(),
4313 Some(ContextMenu::Completions(_))
4314 )
4315 };
4316 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4317 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4318 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4319 CompletionTriggerKind::TRIGGER_CHARACTER
4320 }
4321
4322 _ => CompletionTriggerKind::INVOKED,
4323 };
4324 let completion_context = CompletionContext {
4325 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4326 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4327 Some(String::from(trigger))
4328 } else {
4329 None
4330 }
4331 }),
4332 trigger_kind,
4333 };
4334 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4335 let sort_completions = provider.sort_completions();
4336
4337 let id = post_inc(&mut self.next_completion_id);
4338 let task = cx.spawn(|this, mut cx| {
4339 async move {
4340 this.update(&mut cx, |this, _| {
4341 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4342 })?;
4343 let completions = completions.await.log_err();
4344 let menu = if let Some(completions) = completions {
4345 let mut menu = CompletionsMenu {
4346 id,
4347 sort_completions,
4348 initial_position: position,
4349 match_candidates: completions
4350 .iter()
4351 .enumerate()
4352 .map(|(id, completion)| {
4353 StringMatchCandidate::new(
4354 id,
4355 completion.label.text[completion.label.filter_range.clone()]
4356 .into(),
4357 )
4358 })
4359 .collect(),
4360 buffer: buffer.clone(),
4361 completions: Arc::new(RwLock::new(completions.into())),
4362 matches: Vec::new().into(),
4363 selected_item: 0,
4364 scroll_handle: UniformListScrollHandle::new(),
4365 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4366 DebouncedDelay::new(),
4367 )),
4368 };
4369 menu.filter(query.as_deref(), cx.background_executor().clone())
4370 .await;
4371
4372 if menu.matches.is_empty() {
4373 None
4374 } else {
4375 this.update(&mut cx, |editor, cx| {
4376 let completions = menu.completions.clone();
4377 let matches = menu.matches.clone();
4378
4379 let delay_ms = EditorSettings::get_global(cx)
4380 .completion_documentation_secondary_query_debounce;
4381 let delay = Duration::from_millis(delay_ms);
4382 editor
4383 .completion_documentation_pre_resolve_debounce
4384 .fire_new(delay, cx, |editor, cx| {
4385 CompletionsMenu::pre_resolve_completion_documentation(
4386 buffer,
4387 completions,
4388 matches,
4389 editor,
4390 cx,
4391 )
4392 });
4393 })
4394 .ok();
4395 Some(menu)
4396 }
4397 } else {
4398 None
4399 };
4400
4401 this.update(&mut cx, |this, cx| {
4402 let mut context_menu = this.context_menu.write();
4403 match context_menu.as_ref() {
4404 None => {}
4405
4406 Some(ContextMenu::Completions(prev_menu)) => {
4407 if prev_menu.id > id {
4408 return;
4409 }
4410 }
4411
4412 _ => return,
4413 }
4414
4415 if this.focus_handle.is_focused(cx) && menu.is_some() {
4416 let menu = menu.unwrap();
4417 *context_menu = Some(ContextMenu::Completions(menu));
4418 drop(context_menu);
4419 this.discard_inline_completion(false, cx);
4420 cx.notify();
4421 } else if this.completion_tasks.len() <= 1 {
4422 // If there are no more completion tasks and the last menu was
4423 // empty, we should hide it. If it was already hidden, we should
4424 // also show the copilot completion when available.
4425 drop(context_menu);
4426 if this.hide_context_menu(cx).is_none() {
4427 this.update_visible_inline_completion(cx);
4428 }
4429 }
4430 })?;
4431
4432 Ok::<_, anyhow::Error>(())
4433 }
4434 .log_err()
4435 });
4436
4437 self.completion_tasks.push((id, task));
4438 }
4439
4440 pub fn confirm_completion(
4441 &mut self,
4442 action: &ConfirmCompletion,
4443 cx: &mut ViewContext<Self>,
4444 ) -> Option<Task<Result<()>>> {
4445 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4446 }
4447
4448 pub fn compose_completion(
4449 &mut self,
4450 action: &ComposeCompletion,
4451 cx: &mut ViewContext<Self>,
4452 ) -> Option<Task<Result<()>>> {
4453 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4454 }
4455
4456 fn do_completion(
4457 &mut self,
4458 item_ix: Option<usize>,
4459 intent: CompletionIntent,
4460 cx: &mut ViewContext<Editor>,
4461 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4462 use language::ToOffset as _;
4463
4464 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4465 menu
4466 } else {
4467 return None;
4468 };
4469
4470 let mat = completions_menu
4471 .matches
4472 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4473 let buffer_handle = completions_menu.buffer;
4474 let completions = completions_menu.completions.read();
4475 let completion = completions.get(mat.candidate_id)?;
4476 cx.stop_propagation();
4477
4478 let snippet;
4479 let text;
4480
4481 if completion.is_snippet() {
4482 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4483 text = snippet.as_ref().unwrap().text.clone();
4484 } else {
4485 snippet = None;
4486 text = completion.new_text.clone();
4487 };
4488 let selections = self.selections.all::<usize>(cx);
4489 let buffer = buffer_handle.read(cx);
4490 let old_range = completion.old_range.to_offset(buffer);
4491 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4492
4493 let newest_selection = self.selections.newest_anchor();
4494 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4495 return None;
4496 }
4497
4498 let lookbehind = newest_selection
4499 .start
4500 .text_anchor
4501 .to_offset(buffer)
4502 .saturating_sub(old_range.start);
4503 let lookahead = old_range
4504 .end
4505 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4506 let mut common_prefix_len = old_text
4507 .bytes()
4508 .zip(text.bytes())
4509 .take_while(|(a, b)| a == b)
4510 .count();
4511
4512 let snapshot = self.buffer.read(cx).snapshot(cx);
4513 let mut range_to_replace: Option<Range<isize>> = None;
4514 let mut ranges = Vec::new();
4515 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4516 for selection in &selections {
4517 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4518 let start = selection.start.saturating_sub(lookbehind);
4519 let end = selection.end + lookahead;
4520 if selection.id == newest_selection.id {
4521 range_to_replace = Some(
4522 ((start + common_prefix_len) as isize - selection.start as isize)
4523 ..(end as isize - selection.start as isize),
4524 );
4525 }
4526 ranges.push(start + common_prefix_len..end);
4527 } else {
4528 common_prefix_len = 0;
4529 ranges.clear();
4530 ranges.extend(selections.iter().map(|s| {
4531 if s.id == newest_selection.id {
4532 range_to_replace = Some(
4533 old_range.start.to_offset_utf16(&snapshot).0 as isize
4534 - selection.start as isize
4535 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4536 - selection.start as isize,
4537 );
4538 old_range.clone()
4539 } else {
4540 s.start..s.end
4541 }
4542 }));
4543 break;
4544 }
4545 if !self.linked_edit_ranges.is_empty() {
4546 let start_anchor = snapshot.anchor_before(selection.head());
4547 let end_anchor = snapshot.anchor_after(selection.tail());
4548 if let Some(ranges) = self
4549 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4550 {
4551 for (buffer, edits) in ranges {
4552 linked_edits.entry(buffer.clone()).or_default().extend(
4553 edits
4554 .into_iter()
4555 .map(|range| (range, text[common_prefix_len..].to_owned())),
4556 );
4557 }
4558 }
4559 }
4560 }
4561 let text = &text[common_prefix_len..];
4562
4563 cx.emit(EditorEvent::InputHandled {
4564 utf16_range_to_replace: range_to_replace,
4565 text: text.into(),
4566 });
4567
4568 self.transact(cx, |this, cx| {
4569 if let Some(mut snippet) = snippet {
4570 snippet.text = text.to_string();
4571 for tabstop in snippet.tabstops.iter_mut().flatten() {
4572 tabstop.start -= common_prefix_len as isize;
4573 tabstop.end -= common_prefix_len as isize;
4574 }
4575
4576 this.insert_snippet(&ranges, snippet, cx).log_err();
4577 } else {
4578 this.buffer.update(cx, |buffer, cx| {
4579 buffer.edit(
4580 ranges.iter().map(|range| (range.clone(), text)),
4581 this.autoindent_mode.clone(),
4582 cx,
4583 );
4584 });
4585 }
4586 for (buffer, edits) in linked_edits {
4587 buffer.update(cx, |buffer, cx| {
4588 let snapshot = buffer.snapshot();
4589 let edits = edits
4590 .into_iter()
4591 .map(|(range, text)| {
4592 use text::ToPoint as TP;
4593 let end_point = TP::to_point(&range.end, &snapshot);
4594 let start_point = TP::to_point(&range.start, &snapshot);
4595 (start_point..end_point, text)
4596 })
4597 .sorted_by_key(|(range, _)| range.start)
4598 .collect::<Vec<_>>();
4599 buffer.edit(edits, None, cx);
4600 })
4601 }
4602
4603 this.refresh_inline_completion(true, false, cx);
4604 });
4605
4606 let show_new_completions_on_confirm = completion
4607 .confirm
4608 .as_ref()
4609 .map_or(false, |confirm| confirm(intent, cx));
4610 if show_new_completions_on_confirm {
4611 self.show_completions(&ShowCompletions { trigger: None }, cx);
4612 }
4613
4614 let provider = self.completion_provider.as_ref()?;
4615 let apply_edits = provider.apply_additional_edits_for_completion(
4616 buffer_handle,
4617 completion.clone(),
4618 true,
4619 cx,
4620 );
4621
4622 let editor_settings = EditorSettings::get_global(cx);
4623 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4624 // After the code completion is finished, users often want to know what signatures are needed.
4625 // so we should automatically call signature_help
4626 self.show_signature_help(&ShowSignatureHelp, cx);
4627 }
4628
4629 Some(cx.foreground_executor().spawn(async move {
4630 apply_edits.await?;
4631 Ok(())
4632 }))
4633 }
4634
4635 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4636 let mut context_menu = self.context_menu.write();
4637 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4638 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4639 // Toggle if we're selecting the same one
4640 *context_menu = None;
4641 cx.notify();
4642 return;
4643 } else {
4644 // Otherwise, clear it and start a new one
4645 *context_menu = None;
4646 cx.notify();
4647 }
4648 }
4649 drop(context_menu);
4650 let snapshot = self.snapshot(cx);
4651 let deployed_from_indicator = action.deployed_from_indicator;
4652 let mut task = self.code_actions_task.take();
4653 let action = action.clone();
4654 cx.spawn(|editor, mut cx| async move {
4655 while let Some(prev_task) = task {
4656 prev_task.await.log_err();
4657 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4658 }
4659
4660 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4661 if editor.focus_handle.is_focused(cx) {
4662 let multibuffer_point = action
4663 .deployed_from_indicator
4664 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4665 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4666 let (buffer, buffer_row) = snapshot
4667 .buffer_snapshot
4668 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4669 .and_then(|(buffer_snapshot, range)| {
4670 editor
4671 .buffer
4672 .read(cx)
4673 .buffer(buffer_snapshot.remote_id())
4674 .map(|buffer| (buffer, range.start.row))
4675 })?;
4676 let (_, code_actions) = editor
4677 .available_code_actions
4678 .clone()
4679 .and_then(|(location, code_actions)| {
4680 let snapshot = location.buffer.read(cx).snapshot();
4681 let point_range = location.range.to_point(&snapshot);
4682 let point_range = point_range.start.row..=point_range.end.row;
4683 if point_range.contains(&buffer_row) {
4684 Some((location, code_actions))
4685 } else {
4686 None
4687 }
4688 })
4689 .unzip();
4690 let buffer_id = buffer.read(cx).remote_id();
4691 let tasks = editor
4692 .tasks
4693 .get(&(buffer_id, buffer_row))
4694 .map(|t| Arc::new(t.to_owned()));
4695 if tasks.is_none() && code_actions.is_none() {
4696 return None;
4697 }
4698
4699 editor.completion_tasks.clear();
4700 editor.discard_inline_completion(false, cx);
4701 let task_context =
4702 tasks
4703 .as_ref()
4704 .zip(editor.project.clone())
4705 .map(|(tasks, project)| {
4706 let position = Point::new(buffer_row, tasks.column);
4707 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4708 let location = Location {
4709 buffer: buffer.clone(),
4710 range: range_start..range_start,
4711 };
4712 // Fill in the environmental variables from the tree-sitter captures
4713 let mut captured_task_variables = TaskVariables::default();
4714 for (capture_name, value) in tasks.extra_variables.clone() {
4715 captured_task_variables.insert(
4716 task::VariableName::Custom(capture_name.into()),
4717 value.clone(),
4718 );
4719 }
4720 project.update(cx, |project, cx| {
4721 project.task_store().update(cx, |task_store, cx| {
4722 task_store.task_context_for_location(
4723 captured_task_variables,
4724 location,
4725 cx,
4726 )
4727 })
4728 })
4729 });
4730
4731 Some(cx.spawn(|editor, mut cx| async move {
4732 let task_context = match task_context {
4733 Some(task_context) => task_context.await,
4734 None => None,
4735 };
4736 let resolved_tasks =
4737 tasks.zip(task_context).map(|(tasks, task_context)| {
4738 Arc::new(ResolvedTasks {
4739 templates: tasks
4740 .templates
4741 .iter()
4742 .filter_map(|(kind, template)| {
4743 template
4744 .resolve_task(&kind.to_id_base(), &task_context)
4745 .map(|task| (kind.clone(), task))
4746 })
4747 .collect(),
4748 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4749 multibuffer_point.row,
4750 tasks.column,
4751 )),
4752 })
4753 });
4754 let spawn_straight_away = resolved_tasks
4755 .as_ref()
4756 .map_or(false, |tasks| tasks.templates.len() == 1)
4757 && code_actions
4758 .as_ref()
4759 .map_or(true, |actions| actions.is_empty());
4760 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4761 *editor.context_menu.write() =
4762 Some(ContextMenu::CodeActions(CodeActionsMenu {
4763 buffer,
4764 actions: CodeActionContents {
4765 tasks: resolved_tasks,
4766 actions: code_actions,
4767 },
4768 selected_item: Default::default(),
4769 scroll_handle: UniformListScrollHandle::default(),
4770 deployed_from_indicator,
4771 }));
4772 if spawn_straight_away {
4773 if let Some(task) = editor.confirm_code_action(
4774 &ConfirmCodeAction { item_ix: Some(0) },
4775 cx,
4776 ) {
4777 cx.notify();
4778 return task;
4779 }
4780 }
4781 cx.notify();
4782 Task::ready(Ok(()))
4783 }) {
4784 task.await
4785 } else {
4786 Ok(())
4787 }
4788 }))
4789 } else {
4790 Some(Task::ready(Ok(())))
4791 }
4792 })?;
4793 if let Some(task) = spawned_test_task {
4794 task.await?;
4795 }
4796
4797 Ok::<_, anyhow::Error>(())
4798 })
4799 .detach_and_log_err(cx);
4800 }
4801
4802 pub fn confirm_code_action(
4803 &mut self,
4804 action: &ConfirmCodeAction,
4805 cx: &mut ViewContext<Self>,
4806 ) -> Option<Task<Result<()>>> {
4807 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4808 menu
4809 } else {
4810 return None;
4811 };
4812 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4813 let action = actions_menu.actions.get(action_ix)?;
4814 let title = action.label();
4815 let buffer = actions_menu.buffer;
4816 let workspace = self.workspace()?;
4817
4818 match action {
4819 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4820 workspace.update(cx, |workspace, cx| {
4821 workspace::tasks::schedule_resolved_task(
4822 workspace,
4823 task_source_kind,
4824 resolved_task,
4825 false,
4826 cx,
4827 );
4828
4829 Some(Task::ready(Ok(())))
4830 })
4831 }
4832 CodeActionsItem::CodeAction {
4833 excerpt_id,
4834 action,
4835 provider,
4836 } => {
4837 let apply_code_action =
4838 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4839 let workspace = workspace.downgrade();
4840 Some(cx.spawn(|editor, cx| async move {
4841 let project_transaction = apply_code_action.await?;
4842 Self::open_project_transaction(
4843 &editor,
4844 workspace,
4845 project_transaction,
4846 title,
4847 cx,
4848 )
4849 .await
4850 }))
4851 }
4852 }
4853 }
4854
4855 pub async fn open_project_transaction(
4856 this: &WeakView<Editor>,
4857 workspace: WeakView<Workspace>,
4858 transaction: ProjectTransaction,
4859 title: String,
4860 mut cx: AsyncWindowContext,
4861 ) -> Result<()> {
4862 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4863 cx.update(|cx| {
4864 entries.sort_unstable_by_key(|(buffer, _)| {
4865 buffer.read(cx).file().map(|f| f.path().clone())
4866 });
4867 })?;
4868
4869 // If the project transaction's edits are all contained within this editor, then
4870 // avoid opening a new editor to display them.
4871
4872 if let Some((buffer, transaction)) = entries.first() {
4873 if entries.len() == 1 {
4874 let excerpt = this.update(&mut cx, |editor, cx| {
4875 editor
4876 .buffer()
4877 .read(cx)
4878 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4879 })?;
4880 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4881 if excerpted_buffer == *buffer {
4882 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4883 let excerpt_range = excerpt_range.to_offset(buffer);
4884 buffer
4885 .edited_ranges_for_transaction::<usize>(transaction)
4886 .all(|range| {
4887 excerpt_range.start <= range.start
4888 && excerpt_range.end >= range.end
4889 })
4890 })?;
4891
4892 if all_edits_within_excerpt {
4893 return Ok(());
4894 }
4895 }
4896 }
4897 }
4898 } else {
4899 return Ok(());
4900 }
4901
4902 let mut ranges_to_highlight = Vec::new();
4903 let excerpt_buffer = cx.new_model(|cx| {
4904 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4905 for (buffer_handle, transaction) in &entries {
4906 let buffer = buffer_handle.read(cx);
4907 ranges_to_highlight.extend(
4908 multibuffer.push_excerpts_with_context_lines(
4909 buffer_handle.clone(),
4910 buffer
4911 .edited_ranges_for_transaction::<usize>(transaction)
4912 .collect(),
4913 DEFAULT_MULTIBUFFER_CONTEXT,
4914 cx,
4915 ),
4916 );
4917 }
4918 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4919 multibuffer
4920 })?;
4921
4922 workspace.update(&mut cx, |workspace, cx| {
4923 let project = workspace.project().clone();
4924 let editor =
4925 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4926 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4927 editor.update(cx, |editor, cx| {
4928 editor.highlight_background::<Self>(
4929 &ranges_to_highlight,
4930 |theme| theme.editor_highlighted_line_background,
4931 cx,
4932 );
4933 });
4934 })?;
4935
4936 Ok(())
4937 }
4938
4939 pub fn clear_code_action_providers(&mut self) {
4940 self.code_action_providers.clear();
4941 self.available_code_actions.take();
4942 }
4943
4944 pub fn push_code_action_provider(
4945 &mut self,
4946 provider: Arc<dyn CodeActionProvider>,
4947 cx: &mut ViewContext<Self>,
4948 ) {
4949 self.code_action_providers.push(provider);
4950 self.refresh_code_actions(cx);
4951 }
4952
4953 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4954 let buffer = self.buffer.read(cx);
4955 let newest_selection = self.selections.newest_anchor().clone();
4956 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4957 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4958 if start_buffer != end_buffer {
4959 return None;
4960 }
4961
4962 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4963 cx.background_executor()
4964 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4965 .await;
4966
4967 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4968 let providers = this.code_action_providers.clone();
4969 let tasks = this
4970 .code_action_providers
4971 .iter()
4972 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4973 .collect::<Vec<_>>();
4974 (providers, tasks)
4975 })?;
4976
4977 let mut actions = Vec::new();
4978 for (provider, provider_actions) in
4979 providers.into_iter().zip(future::join_all(tasks).await)
4980 {
4981 if let Some(provider_actions) = provider_actions.log_err() {
4982 actions.extend(provider_actions.into_iter().map(|action| {
4983 AvailableCodeAction {
4984 excerpt_id: newest_selection.start.excerpt_id,
4985 action,
4986 provider: provider.clone(),
4987 }
4988 }));
4989 }
4990 }
4991
4992 this.update(&mut cx, |this, cx| {
4993 this.available_code_actions = if actions.is_empty() {
4994 None
4995 } else {
4996 Some((
4997 Location {
4998 buffer: start_buffer,
4999 range: start..end,
5000 },
5001 actions.into(),
5002 ))
5003 };
5004 cx.notify();
5005 })
5006 }));
5007 None
5008 }
5009
5010 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
5011 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
5012 self.show_git_blame_inline = false;
5013
5014 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
5015 cx.background_executor().timer(delay).await;
5016
5017 this.update(&mut cx, |this, cx| {
5018 this.show_git_blame_inline = true;
5019 cx.notify();
5020 })
5021 .log_err();
5022 }));
5023 }
5024 }
5025
5026 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5027 if self.pending_rename.is_some() {
5028 return None;
5029 }
5030
5031 let provider = self.semantics_provider.clone()?;
5032 let buffer = self.buffer.read(cx);
5033 let newest_selection = self.selections.newest_anchor().clone();
5034 let cursor_position = newest_selection.head();
5035 let (cursor_buffer, cursor_buffer_position) =
5036 buffer.text_anchor_for_position(cursor_position, cx)?;
5037 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
5038 if cursor_buffer != tail_buffer {
5039 return None;
5040 }
5041
5042 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5043 cx.background_executor()
5044 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5045 .await;
5046
5047 let highlights = if let Some(highlights) = cx
5048 .update(|cx| {
5049 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5050 })
5051 .ok()
5052 .flatten()
5053 {
5054 highlights.await.log_err()
5055 } else {
5056 None
5057 };
5058
5059 if let Some(highlights) = highlights {
5060 this.update(&mut cx, |this, cx| {
5061 if this.pending_rename.is_some() {
5062 return;
5063 }
5064
5065 let buffer_id = cursor_position.buffer_id;
5066 let buffer = this.buffer.read(cx);
5067 if !buffer
5068 .text_anchor_for_position(cursor_position, cx)
5069 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5070 {
5071 return;
5072 }
5073
5074 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5075 let mut write_ranges = Vec::new();
5076 let mut read_ranges = Vec::new();
5077 for highlight in highlights {
5078 for (excerpt_id, excerpt_range) in
5079 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5080 {
5081 let start = highlight
5082 .range
5083 .start
5084 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5085 let end = highlight
5086 .range
5087 .end
5088 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5089 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5090 continue;
5091 }
5092
5093 let range = Anchor {
5094 buffer_id,
5095 excerpt_id,
5096 text_anchor: start,
5097 }..Anchor {
5098 buffer_id,
5099 excerpt_id,
5100 text_anchor: end,
5101 };
5102 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5103 write_ranges.push(range);
5104 } else {
5105 read_ranges.push(range);
5106 }
5107 }
5108 }
5109
5110 this.highlight_background::<DocumentHighlightRead>(
5111 &read_ranges,
5112 |theme| theme.editor_document_highlight_read_background,
5113 cx,
5114 );
5115 this.highlight_background::<DocumentHighlightWrite>(
5116 &write_ranges,
5117 |theme| theme.editor_document_highlight_write_background,
5118 cx,
5119 );
5120 cx.notify();
5121 })
5122 .log_err();
5123 }
5124 }));
5125 None
5126 }
5127
5128 pub fn refresh_inline_completion(
5129 &mut self,
5130 debounce: bool,
5131 user_requested: bool,
5132 cx: &mut ViewContext<Self>,
5133 ) -> Option<()> {
5134 let provider = self.inline_completion_provider()?;
5135 let cursor = self.selections.newest_anchor().head();
5136 let (buffer, cursor_buffer_position) =
5137 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5138
5139 if !user_requested
5140 && (!self.enable_inline_completions
5141 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5142 {
5143 self.discard_inline_completion(false, cx);
5144 return None;
5145 }
5146
5147 self.update_visible_inline_completion(cx);
5148 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5149 Some(())
5150 }
5151
5152 fn cycle_inline_completion(
5153 &mut self,
5154 direction: Direction,
5155 cx: &mut ViewContext<Self>,
5156 ) -> Option<()> {
5157 let provider = self.inline_completion_provider()?;
5158 let cursor = self.selections.newest_anchor().head();
5159 let (buffer, cursor_buffer_position) =
5160 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5161 if !self.enable_inline_completions
5162 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5163 {
5164 return None;
5165 }
5166
5167 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5168 self.update_visible_inline_completion(cx);
5169
5170 Some(())
5171 }
5172
5173 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5174 if !self.has_active_inline_completion(cx) {
5175 self.refresh_inline_completion(false, true, cx);
5176 return;
5177 }
5178
5179 self.update_visible_inline_completion(cx);
5180 }
5181
5182 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5183 self.show_cursor_names(cx);
5184 }
5185
5186 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5187 self.show_cursor_names = true;
5188 cx.notify();
5189 cx.spawn(|this, mut cx| async move {
5190 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5191 this.update(&mut cx, |this, cx| {
5192 this.show_cursor_names = false;
5193 cx.notify()
5194 })
5195 .ok()
5196 })
5197 .detach();
5198 }
5199
5200 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5201 if self.has_active_inline_completion(cx) {
5202 self.cycle_inline_completion(Direction::Next, cx);
5203 } else {
5204 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5205 if is_copilot_disabled {
5206 cx.propagate();
5207 }
5208 }
5209 }
5210
5211 pub fn previous_inline_completion(
5212 &mut self,
5213 _: &PreviousInlineCompletion,
5214 cx: &mut ViewContext<Self>,
5215 ) {
5216 if self.has_active_inline_completion(cx) {
5217 self.cycle_inline_completion(Direction::Prev, cx);
5218 } else {
5219 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5220 if is_copilot_disabled {
5221 cx.propagate();
5222 }
5223 }
5224 }
5225
5226 pub fn accept_inline_completion(
5227 &mut self,
5228 _: &AcceptInlineCompletion,
5229 cx: &mut ViewContext<Self>,
5230 ) {
5231 let Some(completion) = self.take_active_inline_completion(cx) else {
5232 return;
5233 };
5234 if let Some(provider) = self.inline_completion_provider() {
5235 provider.accept(cx);
5236 }
5237
5238 cx.emit(EditorEvent::InputHandled {
5239 utf16_range_to_replace: None,
5240 text: completion.text.to_string().into(),
5241 });
5242
5243 if let Some(range) = completion.delete_range {
5244 self.change_selections(None, cx, |s| s.select_ranges([range]))
5245 }
5246 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5247 self.refresh_inline_completion(true, true, cx);
5248 cx.notify();
5249 }
5250
5251 pub fn accept_partial_inline_completion(
5252 &mut self,
5253 _: &AcceptPartialInlineCompletion,
5254 cx: &mut ViewContext<Self>,
5255 ) {
5256 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5257 if let Some(completion) = self.take_active_inline_completion(cx) {
5258 let mut partial_completion = completion
5259 .text
5260 .chars()
5261 .by_ref()
5262 .take_while(|c| c.is_alphabetic())
5263 .collect::<String>();
5264 if partial_completion.is_empty() {
5265 partial_completion = completion
5266 .text
5267 .chars()
5268 .by_ref()
5269 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5270 .collect::<String>();
5271 }
5272
5273 cx.emit(EditorEvent::InputHandled {
5274 utf16_range_to_replace: None,
5275 text: partial_completion.clone().into(),
5276 });
5277
5278 if let Some(range) = completion.delete_range {
5279 self.change_selections(None, cx, |s| s.select_ranges([range]))
5280 }
5281 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5282
5283 self.refresh_inline_completion(true, true, cx);
5284 cx.notify();
5285 }
5286 }
5287 }
5288
5289 fn discard_inline_completion(
5290 &mut self,
5291 should_report_inline_completion_event: bool,
5292 cx: &mut ViewContext<Self>,
5293 ) -> bool {
5294 if let Some(provider) = self.inline_completion_provider() {
5295 provider.discard(should_report_inline_completion_event, cx);
5296 }
5297
5298 self.take_active_inline_completion(cx).is_some()
5299 }
5300
5301 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5302 if let Some(completion) = self.active_inline_completion.as_ref() {
5303 let buffer = self.buffer.read(cx).read(cx);
5304 completion.position.is_valid(&buffer)
5305 } else {
5306 false
5307 }
5308 }
5309
5310 fn take_active_inline_completion(
5311 &mut self,
5312 cx: &mut ViewContext<Self>,
5313 ) -> Option<CompletionState> {
5314 let completion = self.active_inline_completion.take()?;
5315 let render_inlay_ids = completion.render_inlay_ids.clone();
5316 self.display_map.update(cx, |map, cx| {
5317 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5318 });
5319 let buffer = self.buffer.read(cx).read(cx);
5320
5321 if completion.position.is_valid(&buffer) {
5322 Some(completion)
5323 } else {
5324 None
5325 }
5326 }
5327
5328 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5329 let selection = self.selections.newest_anchor();
5330 let cursor = selection.head();
5331
5332 let excerpt_id = cursor.excerpt_id;
5333
5334 if self.context_menu.read().is_none()
5335 && self.completion_tasks.is_empty()
5336 && selection.start == selection.end
5337 {
5338 if let Some(provider) = self.inline_completion_provider() {
5339 if let Some((buffer, cursor_buffer_position)) =
5340 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5341 {
5342 if let Some(proposal) =
5343 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5344 {
5345 let mut to_remove = Vec::new();
5346 if let Some(completion) = self.active_inline_completion.take() {
5347 to_remove.extend(completion.render_inlay_ids.iter());
5348 }
5349
5350 let to_add = proposal
5351 .inlays
5352 .iter()
5353 .filter_map(|inlay| {
5354 let snapshot = self.buffer.read(cx).snapshot(cx);
5355 let id = post_inc(&mut self.next_inlay_id);
5356 match inlay {
5357 InlayProposal::Hint(position, hint) => {
5358 let position =
5359 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5360 Some(Inlay::hint(id, position, hint))
5361 }
5362 InlayProposal::Suggestion(position, text) => {
5363 let position =
5364 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5365 Some(Inlay::suggestion(id, position, text.clone()))
5366 }
5367 }
5368 })
5369 .collect_vec();
5370
5371 self.active_inline_completion = Some(CompletionState {
5372 position: cursor,
5373 text: proposal.text,
5374 delete_range: proposal.delete_range.and_then(|range| {
5375 let snapshot = self.buffer.read(cx).snapshot(cx);
5376 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5377 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5378 Some(start?..end?)
5379 }),
5380 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5381 });
5382
5383 self.display_map
5384 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5385
5386 cx.notify();
5387 return;
5388 }
5389 }
5390 }
5391 }
5392
5393 self.discard_inline_completion(false, cx);
5394 }
5395
5396 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5397 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5398 }
5399
5400 fn render_code_actions_indicator(
5401 &self,
5402 _style: &EditorStyle,
5403 row: DisplayRow,
5404 is_active: bool,
5405 cx: &mut ViewContext<Self>,
5406 ) -> Option<IconButton> {
5407 if self.available_code_actions.is_some() {
5408 Some(
5409 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5410 .shape(ui::IconButtonShape::Square)
5411 .icon_size(IconSize::XSmall)
5412 .icon_color(Color::Muted)
5413 .selected(is_active)
5414 .tooltip({
5415 let focus_handle = self.focus_handle.clone();
5416 move |cx| {
5417 Tooltip::for_action_in(
5418 "Toggle Code Actions",
5419 &ToggleCodeActions {
5420 deployed_from_indicator: None,
5421 },
5422 &focus_handle,
5423 cx,
5424 )
5425 }
5426 })
5427 .on_click(cx.listener(move |editor, _e, cx| {
5428 editor.focus(cx);
5429 editor.toggle_code_actions(
5430 &ToggleCodeActions {
5431 deployed_from_indicator: Some(row),
5432 },
5433 cx,
5434 );
5435 })),
5436 )
5437 } else {
5438 None
5439 }
5440 }
5441
5442 fn clear_tasks(&mut self) {
5443 self.tasks.clear()
5444 }
5445
5446 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5447 if self.tasks.insert(key, value).is_some() {
5448 // This case should hopefully be rare, but just in case...
5449 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5450 }
5451 }
5452
5453 fn render_run_indicator(
5454 &self,
5455 _style: &EditorStyle,
5456 is_active: bool,
5457 row: DisplayRow,
5458 cx: &mut ViewContext<Self>,
5459 ) -> IconButton {
5460 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5461 .shape(ui::IconButtonShape::Square)
5462 .icon_size(IconSize::XSmall)
5463 .icon_color(Color::Muted)
5464 .selected(is_active)
5465 .on_click(cx.listener(move |editor, _e, cx| {
5466 editor.focus(cx);
5467 editor.toggle_code_actions(
5468 &ToggleCodeActions {
5469 deployed_from_indicator: Some(row),
5470 },
5471 cx,
5472 );
5473 }))
5474 }
5475
5476 pub fn context_menu_visible(&self) -> bool {
5477 self.context_menu
5478 .read()
5479 .as_ref()
5480 .map_or(false, |menu| menu.visible())
5481 }
5482
5483 fn render_context_menu(
5484 &self,
5485 cursor_position: DisplayPoint,
5486 style: &EditorStyle,
5487 max_height: Pixels,
5488 cx: &mut ViewContext<Editor>,
5489 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5490 self.context_menu.read().as_ref().map(|menu| {
5491 menu.render(
5492 cursor_position,
5493 style,
5494 max_height,
5495 self.workspace.as_ref().map(|(w, _)| w.clone()),
5496 cx,
5497 )
5498 })
5499 }
5500
5501 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5502 cx.notify();
5503 self.completion_tasks.clear();
5504 let context_menu = self.context_menu.write().take();
5505 if context_menu.is_some() {
5506 self.update_visible_inline_completion(cx);
5507 }
5508 context_menu
5509 }
5510
5511 pub fn insert_snippet(
5512 &mut self,
5513 insertion_ranges: &[Range<usize>],
5514 snippet: Snippet,
5515 cx: &mut ViewContext<Self>,
5516 ) -> Result<()> {
5517 struct Tabstop<T> {
5518 is_end_tabstop: bool,
5519 ranges: Vec<Range<T>>,
5520 }
5521
5522 let tabstops = self.buffer.update(cx, |buffer, cx| {
5523 let snippet_text: Arc<str> = snippet.text.clone().into();
5524 buffer.edit(
5525 insertion_ranges
5526 .iter()
5527 .cloned()
5528 .map(|range| (range, snippet_text.clone())),
5529 Some(AutoindentMode::EachLine),
5530 cx,
5531 );
5532
5533 let snapshot = &*buffer.read(cx);
5534 let snippet = &snippet;
5535 snippet
5536 .tabstops
5537 .iter()
5538 .map(|tabstop| {
5539 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5540 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5541 });
5542 let mut tabstop_ranges = tabstop
5543 .iter()
5544 .flat_map(|tabstop_range| {
5545 let mut delta = 0_isize;
5546 insertion_ranges.iter().map(move |insertion_range| {
5547 let insertion_start = insertion_range.start as isize + delta;
5548 delta +=
5549 snippet.text.len() as isize - insertion_range.len() as isize;
5550
5551 let start = ((insertion_start + tabstop_range.start) as usize)
5552 .min(snapshot.len());
5553 let end = ((insertion_start + tabstop_range.end) as usize)
5554 .min(snapshot.len());
5555 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5556 })
5557 })
5558 .collect::<Vec<_>>();
5559 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5560
5561 Tabstop {
5562 is_end_tabstop,
5563 ranges: tabstop_ranges,
5564 }
5565 })
5566 .collect::<Vec<_>>()
5567 });
5568 if let Some(tabstop) = tabstops.first() {
5569 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5570 s.select_ranges(tabstop.ranges.iter().cloned());
5571 });
5572
5573 // If we're already at the last tabstop and it's at the end of the snippet,
5574 // we're done, we don't need to keep the state around.
5575 if !tabstop.is_end_tabstop {
5576 let ranges = tabstops
5577 .into_iter()
5578 .map(|tabstop| tabstop.ranges)
5579 .collect::<Vec<_>>();
5580 self.snippet_stack.push(SnippetState {
5581 active_index: 0,
5582 ranges,
5583 });
5584 }
5585
5586 // Check whether the just-entered snippet ends with an auto-closable bracket.
5587 if self.autoclose_regions.is_empty() {
5588 let snapshot = self.buffer.read(cx).snapshot(cx);
5589 for selection in &mut self.selections.all::<Point>(cx) {
5590 let selection_head = selection.head();
5591 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5592 continue;
5593 };
5594
5595 let mut bracket_pair = None;
5596 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5597 let prev_chars = snapshot
5598 .reversed_chars_at(selection_head)
5599 .collect::<String>();
5600 for (pair, enabled) in scope.brackets() {
5601 if enabled
5602 && pair.close
5603 && prev_chars.starts_with(pair.start.as_str())
5604 && next_chars.starts_with(pair.end.as_str())
5605 {
5606 bracket_pair = Some(pair.clone());
5607 break;
5608 }
5609 }
5610 if let Some(pair) = bracket_pair {
5611 let start = snapshot.anchor_after(selection_head);
5612 let end = snapshot.anchor_after(selection_head);
5613 self.autoclose_regions.push(AutocloseRegion {
5614 selection_id: selection.id,
5615 range: start..end,
5616 pair,
5617 });
5618 }
5619 }
5620 }
5621 }
5622 Ok(())
5623 }
5624
5625 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5626 self.move_to_snippet_tabstop(Bias::Right, cx)
5627 }
5628
5629 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5630 self.move_to_snippet_tabstop(Bias::Left, cx)
5631 }
5632
5633 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5634 if let Some(mut snippet) = self.snippet_stack.pop() {
5635 match bias {
5636 Bias::Left => {
5637 if snippet.active_index > 0 {
5638 snippet.active_index -= 1;
5639 } else {
5640 self.snippet_stack.push(snippet);
5641 return false;
5642 }
5643 }
5644 Bias::Right => {
5645 if snippet.active_index + 1 < snippet.ranges.len() {
5646 snippet.active_index += 1;
5647 } else {
5648 self.snippet_stack.push(snippet);
5649 return false;
5650 }
5651 }
5652 }
5653 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5654 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5655 s.select_anchor_ranges(current_ranges.iter().cloned())
5656 });
5657 // If snippet state is not at the last tabstop, push it back on the stack
5658 if snippet.active_index + 1 < snippet.ranges.len() {
5659 self.snippet_stack.push(snippet);
5660 }
5661 return true;
5662 }
5663 }
5664
5665 false
5666 }
5667
5668 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5669 self.transact(cx, |this, cx| {
5670 this.select_all(&SelectAll, cx);
5671 this.insert("", cx);
5672 });
5673 }
5674
5675 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5676 self.transact(cx, |this, cx| {
5677 this.select_autoclose_pair(cx);
5678 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5679 if !this.linked_edit_ranges.is_empty() {
5680 let selections = this.selections.all::<MultiBufferPoint>(cx);
5681 let snapshot = this.buffer.read(cx).snapshot(cx);
5682
5683 for selection in selections.iter() {
5684 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5685 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5686 if selection_start.buffer_id != selection_end.buffer_id {
5687 continue;
5688 }
5689 if let Some(ranges) =
5690 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5691 {
5692 for (buffer, entries) in ranges {
5693 linked_ranges.entry(buffer).or_default().extend(entries);
5694 }
5695 }
5696 }
5697 }
5698
5699 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5700 if !this.selections.line_mode {
5701 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5702 for selection in &mut selections {
5703 if selection.is_empty() {
5704 let old_head = selection.head();
5705 let mut new_head =
5706 movement::left(&display_map, old_head.to_display_point(&display_map))
5707 .to_point(&display_map);
5708 if let Some((buffer, line_buffer_range)) = display_map
5709 .buffer_snapshot
5710 .buffer_line_for_row(MultiBufferRow(old_head.row))
5711 {
5712 let indent_size =
5713 buffer.indent_size_for_line(line_buffer_range.start.row);
5714 let indent_len = match indent_size.kind {
5715 IndentKind::Space => {
5716 buffer.settings_at(line_buffer_range.start, cx).tab_size
5717 }
5718 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5719 };
5720 if old_head.column <= indent_size.len && old_head.column > 0 {
5721 let indent_len = indent_len.get();
5722 new_head = cmp::min(
5723 new_head,
5724 MultiBufferPoint::new(
5725 old_head.row,
5726 ((old_head.column - 1) / indent_len) * indent_len,
5727 ),
5728 );
5729 }
5730 }
5731
5732 selection.set_head(new_head, SelectionGoal::None);
5733 }
5734 }
5735 }
5736
5737 this.signature_help_state.set_backspace_pressed(true);
5738 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5739 this.insert("", cx);
5740 let empty_str: Arc<str> = Arc::from("");
5741 for (buffer, edits) in linked_ranges {
5742 let snapshot = buffer.read(cx).snapshot();
5743 use text::ToPoint as TP;
5744
5745 let edits = edits
5746 .into_iter()
5747 .map(|range| {
5748 let end_point = TP::to_point(&range.end, &snapshot);
5749 let mut start_point = TP::to_point(&range.start, &snapshot);
5750
5751 if end_point == start_point {
5752 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5753 .saturating_sub(1);
5754 start_point = TP::to_point(&offset, &snapshot);
5755 };
5756
5757 (start_point..end_point, empty_str.clone())
5758 })
5759 .sorted_by_key(|(range, _)| range.start)
5760 .collect::<Vec<_>>();
5761 buffer.update(cx, |this, cx| {
5762 this.edit(edits, None, cx);
5763 })
5764 }
5765 this.refresh_inline_completion(true, false, cx);
5766 linked_editing_ranges::refresh_linked_ranges(this, cx);
5767 });
5768 }
5769
5770 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5771 self.transact(cx, |this, cx| {
5772 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5773 let line_mode = s.line_mode;
5774 s.move_with(|map, selection| {
5775 if selection.is_empty() && !line_mode {
5776 let cursor = movement::right(map, selection.head());
5777 selection.end = cursor;
5778 selection.reversed = true;
5779 selection.goal = SelectionGoal::None;
5780 }
5781 })
5782 });
5783 this.insert("", cx);
5784 this.refresh_inline_completion(true, false, cx);
5785 });
5786 }
5787
5788 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5789 if self.move_to_prev_snippet_tabstop(cx) {
5790 return;
5791 }
5792
5793 self.outdent(&Outdent, cx);
5794 }
5795
5796 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5797 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5798 return;
5799 }
5800
5801 let mut selections = self.selections.all_adjusted(cx);
5802 let buffer = self.buffer.read(cx);
5803 let snapshot = buffer.snapshot(cx);
5804 let rows_iter = selections.iter().map(|s| s.head().row);
5805 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5806
5807 let mut edits = Vec::new();
5808 let mut prev_edited_row = 0;
5809 let mut row_delta = 0;
5810 for selection in &mut selections {
5811 if selection.start.row != prev_edited_row {
5812 row_delta = 0;
5813 }
5814 prev_edited_row = selection.end.row;
5815
5816 // If the selection is non-empty, then increase the indentation of the selected lines.
5817 if !selection.is_empty() {
5818 row_delta =
5819 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5820 continue;
5821 }
5822
5823 // If the selection is empty and the cursor is in the leading whitespace before the
5824 // suggested indentation, then auto-indent the line.
5825 let cursor = selection.head();
5826 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5827 if let Some(suggested_indent) =
5828 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5829 {
5830 if cursor.column < suggested_indent.len
5831 && cursor.column <= current_indent.len
5832 && current_indent.len <= suggested_indent.len
5833 {
5834 selection.start = Point::new(cursor.row, suggested_indent.len);
5835 selection.end = selection.start;
5836 if row_delta == 0 {
5837 edits.extend(Buffer::edit_for_indent_size_adjustment(
5838 cursor.row,
5839 current_indent,
5840 suggested_indent,
5841 ));
5842 row_delta = suggested_indent.len - current_indent.len;
5843 }
5844 continue;
5845 }
5846 }
5847
5848 // Otherwise, insert a hard or soft tab.
5849 let settings = buffer.settings_at(cursor, cx);
5850 let tab_size = if settings.hard_tabs {
5851 IndentSize::tab()
5852 } else {
5853 let tab_size = settings.tab_size.get();
5854 let char_column = snapshot
5855 .text_for_range(Point::new(cursor.row, 0)..cursor)
5856 .flat_map(str::chars)
5857 .count()
5858 + row_delta as usize;
5859 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5860 IndentSize::spaces(chars_to_next_tab_stop)
5861 };
5862 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5863 selection.end = selection.start;
5864 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5865 row_delta += tab_size.len;
5866 }
5867
5868 self.transact(cx, |this, cx| {
5869 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5870 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5871 this.refresh_inline_completion(true, false, cx);
5872 });
5873 }
5874
5875 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5876 if self.read_only(cx) {
5877 return;
5878 }
5879 let mut selections = self.selections.all::<Point>(cx);
5880 let mut prev_edited_row = 0;
5881 let mut row_delta = 0;
5882 let mut edits = Vec::new();
5883 let buffer = self.buffer.read(cx);
5884 let snapshot = buffer.snapshot(cx);
5885 for selection in &mut selections {
5886 if selection.start.row != prev_edited_row {
5887 row_delta = 0;
5888 }
5889 prev_edited_row = selection.end.row;
5890
5891 row_delta =
5892 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5893 }
5894
5895 self.transact(cx, |this, cx| {
5896 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5897 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5898 });
5899 }
5900
5901 fn indent_selection(
5902 buffer: &MultiBuffer,
5903 snapshot: &MultiBufferSnapshot,
5904 selection: &mut Selection<Point>,
5905 edits: &mut Vec<(Range<Point>, String)>,
5906 delta_for_start_row: u32,
5907 cx: &AppContext,
5908 ) -> u32 {
5909 let settings = buffer.settings_at(selection.start, cx);
5910 let tab_size = settings.tab_size.get();
5911 let indent_kind = if settings.hard_tabs {
5912 IndentKind::Tab
5913 } else {
5914 IndentKind::Space
5915 };
5916 let mut start_row = selection.start.row;
5917 let mut end_row = selection.end.row + 1;
5918
5919 // If a selection ends at the beginning of a line, don't indent
5920 // that last line.
5921 if selection.end.column == 0 && selection.end.row > selection.start.row {
5922 end_row -= 1;
5923 }
5924
5925 // Avoid re-indenting a row that has already been indented by a
5926 // previous selection, but still update this selection's column
5927 // to reflect that indentation.
5928 if delta_for_start_row > 0 {
5929 start_row += 1;
5930 selection.start.column += delta_for_start_row;
5931 if selection.end.row == selection.start.row {
5932 selection.end.column += delta_for_start_row;
5933 }
5934 }
5935
5936 let mut delta_for_end_row = 0;
5937 let has_multiple_rows = start_row + 1 != end_row;
5938 for row in start_row..end_row {
5939 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5940 let indent_delta = match (current_indent.kind, indent_kind) {
5941 (IndentKind::Space, IndentKind::Space) => {
5942 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5943 IndentSize::spaces(columns_to_next_tab_stop)
5944 }
5945 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5946 (_, IndentKind::Tab) => IndentSize::tab(),
5947 };
5948
5949 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5950 0
5951 } else {
5952 selection.start.column
5953 };
5954 let row_start = Point::new(row, start);
5955 edits.push((
5956 row_start..row_start,
5957 indent_delta.chars().collect::<String>(),
5958 ));
5959
5960 // Update this selection's endpoints to reflect the indentation.
5961 if row == selection.start.row {
5962 selection.start.column += indent_delta.len;
5963 }
5964 if row == selection.end.row {
5965 selection.end.column += indent_delta.len;
5966 delta_for_end_row = indent_delta.len;
5967 }
5968 }
5969
5970 if selection.start.row == selection.end.row {
5971 delta_for_start_row + delta_for_end_row
5972 } else {
5973 delta_for_end_row
5974 }
5975 }
5976
5977 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5978 if self.read_only(cx) {
5979 return;
5980 }
5981 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5982 let selections = self.selections.all::<Point>(cx);
5983 let mut deletion_ranges = Vec::new();
5984 let mut last_outdent = None;
5985 {
5986 let buffer = self.buffer.read(cx);
5987 let snapshot = buffer.snapshot(cx);
5988 for selection in &selections {
5989 let settings = buffer.settings_at(selection.start, cx);
5990 let tab_size = settings.tab_size.get();
5991 let mut rows = selection.spanned_rows(false, &display_map);
5992
5993 // Avoid re-outdenting a row that has already been outdented by a
5994 // previous selection.
5995 if let Some(last_row) = last_outdent {
5996 if last_row == rows.start {
5997 rows.start = rows.start.next_row();
5998 }
5999 }
6000 let has_multiple_rows = rows.len() > 1;
6001 for row in rows.iter_rows() {
6002 let indent_size = snapshot.indent_size_for_line(row);
6003 if indent_size.len > 0 {
6004 let deletion_len = match indent_size.kind {
6005 IndentKind::Space => {
6006 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6007 if columns_to_prev_tab_stop == 0 {
6008 tab_size
6009 } else {
6010 columns_to_prev_tab_stop
6011 }
6012 }
6013 IndentKind::Tab => 1,
6014 };
6015 let start = if has_multiple_rows
6016 || deletion_len > selection.start.column
6017 || indent_size.len < selection.start.column
6018 {
6019 0
6020 } else {
6021 selection.start.column - deletion_len
6022 };
6023 deletion_ranges.push(
6024 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6025 );
6026 last_outdent = Some(row);
6027 }
6028 }
6029 }
6030 }
6031
6032 self.transact(cx, |this, cx| {
6033 this.buffer.update(cx, |buffer, cx| {
6034 let empty_str: Arc<str> = Arc::default();
6035 buffer.edit(
6036 deletion_ranges
6037 .into_iter()
6038 .map(|range| (range, empty_str.clone())),
6039 None,
6040 cx,
6041 );
6042 });
6043 let selections = this.selections.all::<usize>(cx);
6044 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6045 });
6046 }
6047
6048 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
6049 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6050 let selections = self.selections.all::<Point>(cx);
6051
6052 let mut new_cursors = Vec::new();
6053 let mut edit_ranges = Vec::new();
6054 let mut selections = selections.iter().peekable();
6055 while let Some(selection) = selections.next() {
6056 let mut rows = selection.spanned_rows(false, &display_map);
6057 let goal_display_column = selection.head().to_display_point(&display_map).column();
6058
6059 // Accumulate contiguous regions of rows that we want to delete.
6060 while let Some(next_selection) = selections.peek() {
6061 let next_rows = next_selection.spanned_rows(false, &display_map);
6062 if next_rows.start <= rows.end {
6063 rows.end = next_rows.end;
6064 selections.next().unwrap();
6065 } else {
6066 break;
6067 }
6068 }
6069
6070 let buffer = &display_map.buffer_snapshot;
6071 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6072 let edit_end;
6073 let cursor_buffer_row;
6074 if buffer.max_point().row >= rows.end.0 {
6075 // If there's a line after the range, delete the \n from the end of the row range
6076 // and position the cursor on the next line.
6077 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6078 cursor_buffer_row = rows.end;
6079 } else {
6080 // If there isn't a line after the range, delete the \n from the line before the
6081 // start of the row range and position the cursor there.
6082 edit_start = edit_start.saturating_sub(1);
6083 edit_end = buffer.len();
6084 cursor_buffer_row = rows.start.previous_row();
6085 }
6086
6087 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6088 *cursor.column_mut() =
6089 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6090
6091 new_cursors.push((
6092 selection.id,
6093 buffer.anchor_after(cursor.to_point(&display_map)),
6094 ));
6095 edit_ranges.push(edit_start..edit_end);
6096 }
6097
6098 self.transact(cx, |this, cx| {
6099 let buffer = this.buffer.update(cx, |buffer, cx| {
6100 let empty_str: Arc<str> = Arc::default();
6101 buffer.edit(
6102 edit_ranges
6103 .into_iter()
6104 .map(|range| (range, empty_str.clone())),
6105 None,
6106 cx,
6107 );
6108 buffer.snapshot(cx)
6109 });
6110 let new_selections = new_cursors
6111 .into_iter()
6112 .map(|(id, cursor)| {
6113 let cursor = cursor.to_point(&buffer);
6114 Selection {
6115 id,
6116 start: cursor,
6117 end: cursor,
6118 reversed: false,
6119 goal: SelectionGoal::None,
6120 }
6121 })
6122 .collect();
6123
6124 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6125 s.select(new_selections);
6126 });
6127 });
6128 }
6129
6130 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6131 if self.read_only(cx) {
6132 return;
6133 }
6134 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6135 for selection in self.selections.all::<Point>(cx) {
6136 let start = MultiBufferRow(selection.start.row);
6137 let end = if selection.start.row == selection.end.row {
6138 MultiBufferRow(selection.start.row + 1)
6139 } else {
6140 MultiBufferRow(selection.end.row)
6141 };
6142
6143 if let Some(last_row_range) = row_ranges.last_mut() {
6144 if start <= last_row_range.end {
6145 last_row_range.end = end;
6146 continue;
6147 }
6148 }
6149 row_ranges.push(start..end);
6150 }
6151
6152 let snapshot = self.buffer.read(cx).snapshot(cx);
6153 let mut cursor_positions = Vec::new();
6154 for row_range in &row_ranges {
6155 let anchor = snapshot.anchor_before(Point::new(
6156 row_range.end.previous_row().0,
6157 snapshot.line_len(row_range.end.previous_row()),
6158 ));
6159 cursor_positions.push(anchor..anchor);
6160 }
6161
6162 self.transact(cx, |this, cx| {
6163 for row_range in row_ranges.into_iter().rev() {
6164 for row in row_range.iter_rows().rev() {
6165 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6166 let next_line_row = row.next_row();
6167 let indent = snapshot.indent_size_for_line(next_line_row);
6168 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6169
6170 let replace = if snapshot.line_len(next_line_row) > indent.len {
6171 " "
6172 } else {
6173 ""
6174 };
6175
6176 this.buffer.update(cx, |buffer, cx| {
6177 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6178 });
6179 }
6180 }
6181
6182 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6183 s.select_anchor_ranges(cursor_positions)
6184 });
6185 });
6186 }
6187
6188 pub fn sort_lines_case_sensitive(
6189 &mut self,
6190 _: &SortLinesCaseSensitive,
6191 cx: &mut ViewContext<Self>,
6192 ) {
6193 self.manipulate_lines(cx, |lines| lines.sort())
6194 }
6195
6196 pub fn sort_lines_case_insensitive(
6197 &mut self,
6198 _: &SortLinesCaseInsensitive,
6199 cx: &mut ViewContext<Self>,
6200 ) {
6201 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6202 }
6203
6204 pub fn unique_lines_case_insensitive(
6205 &mut self,
6206 _: &UniqueLinesCaseInsensitive,
6207 cx: &mut ViewContext<Self>,
6208 ) {
6209 self.manipulate_lines(cx, |lines| {
6210 let mut seen = HashSet::default();
6211 lines.retain(|line| seen.insert(line.to_lowercase()));
6212 })
6213 }
6214
6215 pub fn unique_lines_case_sensitive(
6216 &mut self,
6217 _: &UniqueLinesCaseSensitive,
6218 cx: &mut ViewContext<Self>,
6219 ) {
6220 self.manipulate_lines(cx, |lines| {
6221 let mut seen = HashSet::default();
6222 lines.retain(|line| seen.insert(*line));
6223 })
6224 }
6225
6226 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6227 let mut revert_changes = HashMap::default();
6228 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6229 for hunk in hunks_for_rows(
6230 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6231 &multi_buffer_snapshot,
6232 ) {
6233 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6234 }
6235 if !revert_changes.is_empty() {
6236 self.transact(cx, |editor, cx| {
6237 editor.revert(revert_changes, cx);
6238 });
6239 }
6240 }
6241
6242 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6243 let Some(project) = self.project.clone() else {
6244 return;
6245 };
6246 self.reload(project, cx).detach_and_notify_err(cx);
6247 }
6248
6249 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6250 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6251 if !revert_changes.is_empty() {
6252 self.transact(cx, |editor, cx| {
6253 editor.revert(revert_changes, cx);
6254 });
6255 }
6256 }
6257
6258 fn apply_selected_diff_hunks(&mut self, _: &ApplyDiffHunk, cx: &mut ViewContext<Self>) {
6259 let snapshot = self.buffer.read(cx).snapshot(cx);
6260 let hunks = hunks_for_selections(&snapshot, &self.selections.disjoint_anchors());
6261 let mut ranges_by_buffer = HashMap::default();
6262 self.transact(cx, |editor, cx| {
6263 for hunk in hunks {
6264 if let Some(buffer) = editor.buffer.read(cx).buffer(hunk.buffer_id) {
6265 ranges_by_buffer
6266 .entry(buffer.clone())
6267 .or_insert_with(Vec::new)
6268 .push(hunk.buffer_range.to_offset(buffer.read(cx)));
6269 }
6270 }
6271
6272 for (buffer, ranges) in ranges_by_buffer {
6273 buffer.update(cx, |buffer, cx| {
6274 buffer.merge_into_base(ranges, cx);
6275 });
6276 }
6277 });
6278 }
6279
6280 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6281 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6282 let project_path = buffer.read(cx).project_path(cx)?;
6283 let project = self.project.as_ref()?.read(cx);
6284 let entry = project.entry_for_path(&project_path, cx)?;
6285 let abs_path = project.absolute_path(&project_path, cx)?;
6286 let parent = if entry.is_symlink {
6287 abs_path.canonicalize().ok()?
6288 } else {
6289 abs_path
6290 }
6291 .parent()?
6292 .to_path_buf();
6293 Some(parent)
6294 }) {
6295 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6296 }
6297 }
6298
6299 fn gather_revert_changes(
6300 &mut self,
6301 selections: &[Selection<Anchor>],
6302 cx: &mut ViewContext<'_, Editor>,
6303 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6304 let mut revert_changes = HashMap::default();
6305 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6306 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6307 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6308 }
6309 revert_changes
6310 }
6311
6312 pub fn prepare_revert_change(
6313 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6314 multi_buffer: &Model<MultiBuffer>,
6315 hunk: &MultiBufferDiffHunk,
6316 cx: &AppContext,
6317 ) -> Option<()> {
6318 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6319 let buffer = buffer.read(cx);
6320 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6321 let buffer_snapshot = buffer.snapshot();
6322 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6323 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6324 probe
6325 .0
6326 .start
6327 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6328 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6329 }) {
6330 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6331 Some(())
6332 } else {
6333 None
6334 }
6335 }
6336
6337 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6338 self.manipulate_lines(cx, |lines| lines.reverse())
6339 }
6340
6341 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6342 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6343 }
6344
6345 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6346 where
6347 Fn: FnMut(&mut Vec<&str>),
6348 {
6349 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6350 let buffer = self.buffer.read(cx).snapshot(cx);
6351
6352 let mut edits = Vec::new();
6353
6354 let selections = self.selections.all::<Point>(cx);
6355 let mut selections = selections.iter().peekable();
6356 let mut contiguous_row_selections = Vec::new();
6357 let mut new_selections = Vec::new();
6358 let mut added_lines = 0;
6359 let mut removed_lines = 0;
6360
6361 while let Some(selection) = selections.next() {
6362 let (start_row, end_row) = consume_contiguous_rows(
6363 &mut contiguous_row_selections,
6364 selection,
6365 &display_map,
6366 &mut selections,
6367 );
6368
6369 let start_point = Point::new(start_row.0, 0);
6370 let end_point = Point::new(
6371 end_row.previous_row().0,
6372 buffer.line_len(end_row.previous_row()),
6373 );
6374 let text = buffer
6375 .text_for_range(start_point..end_point)
6376 .collect::<String>();
6377
6378 let mut lines = text.split('\n').collect_vec();
6379
6380 let lines_before = lines.len();
6381 callback(&mut lines);
6382 let lines_after = lines.len();
6383
6384 edits.push((start_point..end_point, lines.join("\n")));
6385
6386 // Selections must change based on added and removed line count
6387 let start_row =
6388 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6389 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6390 new_selections.push(Selection {
6391 id: selection.id,
6392 start: start_row,
6393 end: end_row,
6394 goal: SelectionGoal::None,
6395 reversed: selection.reversed,
6396 });
6397
6398 if lines_after > lines_before {
6399 added_lines += lines_after - lines_before;
6400 } else if lines_before > lines_after {
6401 removed_lines += lines_before - lines_after;
6402 }
6403 }
6404
6405 self.transact(cx, |this, cx| {
6406 let buffer = this.buffer.update(cx, |buffer, cx| {
6407 buffer.edit(edits, None, cx);
6408 buffer.snapshot(cx)
6409 });
6410
6411 // Recalculate offsets on newly edited buffer
6412 let new_selections = new_selections
6413 .iter()
6414 .map(|s| {
6415 let start_point = Point::new(s.start.0, 0);
6416 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6417 Selection {
6418 id: s.id,
6419 start: buffer.point_to_offset(start_point),
6420 end: buffer.point_to_offset(end_point),
6421 goal: s.goal,
6422 reversed: s.reversed,
6423 }
6424 })
6425 .collect();
6426
6427 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6428 s.select(new_selections);
6429 });
6430
6431 this.request_autoscroll(Autoscroll::fit(), cx);
6432 });
6433 }
6434
6435 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6436 self.manipulate_text(cx, |text| text.to_uppercase())
6437 }
6438
6439 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6440 self.manipulate_text(cx, |text| text.to_lowercase())
6441 }
6442
6443 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6444 self.manipulate_text(cx, |text| {
6445 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6446 // https://github.com/rutrum/convert-case/issues/16
6447 text.split('\n')
6448 .map(|line| line.to_case(Case::Title))
6449 .join("\n")
6450 })
6451 }
6452
6453 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6454 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6455 }
6456
6457 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6458 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6459 }
6460
6461 pub fn convert_to_upper_camel_case(
6462 &mut self,
6463 _: &ConvertToUpperCamelCase,
6464 cx: &mut ViewContext<Self>,
6465 ) {
6466 self.manipulate_text(cx, |text| {
6467 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6468 // https://github.com/rutrum/convert-case/issues/16
6469 text.split('\n')
6470 .map(|line| line.to_case(Case::UpperCamel))
6471 .join("\n")
6472 })
6473 }
6474
6475 pub fn convert_to_lower_camel_case(
6476 &mut self,
6477 _: &ConvertToLowerCamelCase,
6478 cx: &mut ViewContext<Self>,
6479 ) {
6480 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6481 }
6482
6483 pub fn convert_to_opposite_case(
6484 &mut self,
6485 _: &ConvertToOppositeCase,
6486 cx: &mut ViewContext<Self>,
6487 ) {
6488 self.manipulate_text(cx, |text| {
6489 text.chars()
6490 .fold(String::with_capacity(text.len()), |mut t, c| {
6491 if c.is_uppercase() {
6492 t.extend(c.to_lowercase());
6493 } else {
6494 t.extend(c.to_uppercase());
6495 }
6496 t
6497 })
6498 })
6499 }
6500
6501 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6502 where
6503 Fn: FnMut(&str) -> String,
6504 {
6505 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6506 let buffer = self.buffer.read(cx).snapshot(cx);
6507
6508 let mut new_selections = Vec::new();
6509 let mut edits = Vec::new();
6510 let mut selection_adjustment = 0i32;
6511
6512 for selection in self.selections.all::<usize>(cx) {
6513 let selection_is_empty = selection.is_empty();
6514
6515 let (start, end) = if selection_is_empty {
6516 let word_range = movement::surrounding_word(
6517 &display_map,
6518 selection.start.to_display_point(&display_map),
6519 );
6520 let start = word_range.start.to_offset(&display_map, Bias::Left);
6521 let end = word_range.end.to_offset(&display_map, Bias::Left);
6522 (start, end)
6523 } else {
6524 (selection.start, selection.end)
6525 };
6526
6527 let text = buffer.text_for_range(start..end).collect::<String>();
6528 let old_length = text.len() as i32;
6529 let text = callback(&text);
6530
6531 new_selections.push(Selection {
6532 start: (start as i32 - selection_adjustment) as usize,
6533 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6534 goal: SelectionGoal::None,
6535 ..selection
6536 });
6537
6538 selection_adjustment += old_length - text.len() as i32;
6539
6540 edits.push((start..end, text));
6541 }
6542
6543 self.transact(cx, |this, cx| {
6544 this.buffer.update(cx, |buffer, cx| {
6545 buffer.edit(edits, None, cx);
6546 });
6547
6548 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6549 s.select(new_selections);
6550 });
6551
6552 this.request_autoscroll(Autoscroll::fit(), cx);
6553 });
6554 }
6555
6556 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6557 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6558 let buffer = &display_map.buffer_snapshot;
6559 let selections = self.selections.all::<Point>(cx);
6560
6561 let mut edits = Vec::new();
6562 let mut selections_iter = selections.iter().peekable();
6563 while let Some(selection) = selections_iter.next() {
6564 // Avoid duplicating the same lines twice.
6565 let mut rows = selection.spanned_rows(false, &display_map);
6566
6567 while let Some(next_selection) = selections_iter.peek() {
6568 let next_rows = next_selection.spanned_rows(false, &display_map);
6569 if next_rows.start < rows.end {
6570 rows.end = next_rows.end;
6571 selections_iter.next().unwrap();
6572 } else {
6573 break;
6574 }
6575 }
6576
6577 // Copy the text from the selected row region and splice it either at the start
6578 // or end of the region.
6579 let start = Point::new(rows.start.0, 0);
6580 let end = Point::new(
6581 rows.end.previous_row().0,
6582 buffer.line_len(rows.end.previous_row()),
6583 );
6584 let text = buffer
6585 .text_for_range(start..end)
6586 .chain(Some("\n"))
6587 .collect::<String>();
6588 let insert_location = if upwards {
6589 Point::new(rows.end.0, 0)
6590 } else {
6591 start
6592 };
6593 edits.push((insert_location..insert_location, text));
6594 }
6595
6596 self.transact(cx, |this, cx| {
6597 this.buffer.update(cx, |buffer, cx| {
6598 buffer.edit(edits, None, cx);
6599 });
6600
6601 this.request_autoscroll(Autoscroll::fit(), cx);
6602 });
6603 }
6604
6605 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6606 self.duplicate_line(true, cx);
6607 }
6608
6609 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6610 self.duplicate_line(false, cx);
6611 }
6612
6613 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6614 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6615 let buffer = self.buffer.read(cx).snapshot(cx);
6616
6617 let mut edits = Vec::new();
6618 let mut unfold_ranges = Vec::new();
6619 let mut refold_ranges = Vec::new();
6620
6621 let selections = self.selections.all::<Point>(cx);
6622 let mut selections = selections.iter().peekable();
6623 let mut contiguous_row_selections = Vec::new();
6624 let mut new_selections = Vec::new();
6625
6626 while let Some(selection) = selections.next() {
6627 // Find all the selections that span a contiguous row range
6628 let (start_row, end_row) = consume_contiguous_rows(
6629 &mut contiguous_row_selections,
6630 selection,
6631 &display_map,
6632 &mut selections,
6633 );
6634
6635 // Move the text spanned by the row range to be before the line preceding the row range
6636 if start_row.0 > 0 {
6637 let range_to_move = Point::new(
6638 start_row.previous_row().0,
6639 buffer.line_len(start_row.previous_row()),
6640 )
6641 ..Point::new(
6642 end_row.previous_row().0,
6643 buffer.line_len(end_row.previous_row()),
6644 );
6645 let insertion_point = display_map
6646 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6647 .0;
6648
6649 // Don't move lines across excerpts
6650 if buffer
6651 .excerpt_boundaries_in_range((
6652 Bound::Excluded(insertion_point),
6653 Bound::Included(range_to_move.end),
6654 ))
6655 .next()
6656 .is_none()
6657 {
6658 let text = buffer
6659 .text_for_range(range_to_move.clone())
6660 .flat_map(|s| s.chars())
6661 .skip(1)
6662 .chain(['\n'])
6663 .collect::<String>();
6664
6665 edits.push((
6666 buffer.anchor_after(range_to_move.start)
6667 ..buffer.anchor_before(range_to_move.end),
6668 String::new(),
6669 ));
6670 let insertion_anchor = buffer.anchor_after(insertion_point);
6671 edits.push((insertion_anchor..insertion_anchor, text));
6672
6673 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6674
6675 // Move selections up
6676 new_selections.extend(contiguous_row_selections.drain(..).map(
6677 |mut selection| {
6678 selection.start.row -= row_delta;
6679 selection.end.row -= row_delta;
6680 selection
6681 },
6682 ));
6683
6684 // Move folds up
6685 unfold_ranges.push(range_to_move.clone());
6686 for fold in display_map.folds_in_range(
6687 buffer.anchor_before(range_to_move.start)
6688 ..buffer.anchor_after(range_to_move.end),
6689 ) {
6690 let mut start = fold.range.start.to_point(&buffer);
6691 let mut end = fold.range.end.to_point(&buffer);
6692 start.row -= row_delta;
6693 end.row -= row_delta;
6694 refold_ranges.push((start..end, fold.placeholder.clone()));
6695 }
6696 }
6697 }
6698
6699 // If we didn't move line(s), preserve the existing selections
6700 new_selections.append(&mut contiguous_row_selections);
6701 }
6702
6703 self.transact(cx, |this, cx| {
6704 this.unfold_ranges(unfold_ranges, true, true, cx);
6705 this.buffer.update(cx, |buffer, cx| {
6706 for (range, text) in edits {
6707 buffer.edit([(range, text)], None, cx);
6708 }
6709 });
6710 this.fold_ranges(refold_ranges, true, cx);
6711 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6712 s.select(new_selections);
6713 })
6714 });
6715 }
6716
6717 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6718 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6719 let buffer = self.buffer.read(cx).snapshot(cx);
6720
6721 let mut edits = Vec::new();
6722 let mut unfold_ranges = Vec::new();
6723 let mut refold_ranges = Vec::new();
6724
6725 let selections = self.selections.all::<Point>(cx);
6726 let mut selections = selections.iter().peekable();
6727 let mut contiguous_row_selections = Vec::new();
6728 let mut new_selections = Vec::new();
6729
6730 while let Some(selection) = selections.next() {
6731 // Find all the selections that span a contiguous row range
6732 let (start_row, end_row) = consume_contiguous_rows(
6733 &mut contiguous_row_selections,
6734 selection,
6735 &display_map,
6736 &mut selections,
6737 );
6738
6739 // Move the text spanned by the row range to be after the last line of the row range
6740 if end_row.0 <= buffer.max_point().row {
6741 let range_to_move =
6742 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6743 let insertion_point = display_map
6744 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6745 .0;
6746
6747 // Don't move lines across excerpt boundaries
6748 if buffer
6749 .excerpt_boundaries_in_range((
6750 Bound::Excluded(range_to_move.start),
6751 Bound::Included(insertion_point),
6752 ))
6753 .next()
6754 .is_none()
6755 {
6756 let mut text = String::from("\n");
6757 text.extend(buffer.text_for_range(range_to_move.clone()));
6758 text.pop(); // Drop trailing newline
6759 edits.push((
6760 buffer.anchor_after(range_to_move.start)
6761 ..buffer.anchor_before(range_to_move.end),
6762 String::new(),
6763 ));
6764 let insertion_anchor = buffer.anchor_after(insertion_point);
6765 edits.push((insertion_anchor..insertion_anchor, text));
6766
6767 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6768
6769 // Move selections down
6770 new_selections.extend(contiguous_row_selections.drain(..).map(
6771 |mut selection| {
6772 selection.start.row += row_delta;
6773 selection.end.row += row_delta;
6774 selection
6775 },
6776 ));
6777
6778 // Move folds down
6779 unfold_ranges.push(range_to_move.clone());
6780 for fold in display_map.folds_in_range(
6781 buffer.anchor_before(range_to_move.start)
6782 ..buffer.anchor_after(range_to_move.end),
6783 ) {
6784 let mut start = fold.range.start.to_point(&buffer);
6785 let mut end = fold.range.end.to_point(&buffer);
6786 start.row += row_delta;
6787 end.row += row_delta;
6788 refold_ranges.push((start..end, fold.placeholder.clone()));
6789 }
6790 }
6791 }
6792
6793 // If we didn't move line(s), preserve the existing selections
6794 new_selections.append(&mut contiguous_row_selections);
6795 }
6796
6797 self.transact(cx, |this, cx| {
6798 this.unfold_ranges(unfold_ranges, true, true, cx);
6799 this.buffer.update(cx, |buffer, cx| {
6800 for (range, text) in edits {
6801 buffer.edit([(range, text)], None, cx);
6802 }
6803 });
6804 this.fold_ranges(refold_ranges, true, cx);
6805 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6806 });
6807 }
6808
6809 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6810 let text_layout_details = &self.text_layout_details(cx);
6811 self.transact(cx, |this, cx| {
6812 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6813 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6814 let line_mode = s.line_mode;
6815 s.move_with(|display_map, selection| {
6816 if !selection.is_empty() || line_mode {
6817 return;
6818 }
6819
6820 let mut head = selection.head();
6821 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6822 if head.column() == display_map.line_len(head.row()) {
6823 transpose_offset = display_map
6824 .buffer_snapshot
6825 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6826 }
6827
6828 if transpose_offset == 0 {
6829 return;
6830 }
6831
6832 *head.column_mut() += 1;
6833 head = display_map.clip_point(head, Bias::Right);
6834 let goal = SelectionGoal::HorizontalPosition(
6835 display_map
6836 .x_for_display_point(head, text_layout_details)
6837 .into(),
6838 );
6839 selection.collapse_to(head, goal);
6840
6841 let transpose_start = display_map
6842 .buffer_snapshot
6843 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6844 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6845 let transpose_end = display_map
6846 .buffer_snapshot
6847 .clip_offset(transpose_offset + 1, Bias::Right);
6848 if let Some(ch) =
6849 display_map.buffer_snapshot.chars_at(transpose_start).next()
6850 {
6851 edits.push((transpose_start..transpose_offset, String::new()));
6852 edits.push((transpose_end..transpose_end, ch.to_string()));
6853 }
6854 }
6855 });
6856 edits
6857 });
6858 this.buffer
6859 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6860 let selections = this.selections.all::<usize>(cx);
6861 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6862 s.select(selections);
6863 });
6864 });
6865 }
6866
6867 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6868 self.rewrap_impl(true, cx)
6869 }
6870
6871 pub fn rewrap_impl(&mut self, only_text: bool, cx: &mut ViewContext<Self>) {
6872 let buffer = self.buffer.read(cx).snapshot(cx);
6873 let selections = self.selections.all::<Point>(cx);
6874 let mut selections = selections.iter().peekable();
6875
6876 let mut edits = Vec::new();
6877 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6878
6879 while let Some(selection) = selections.next() {
6880 let mut start_row = selection.start.row;
6881 let mut end_row = selection.end.row;
6882
6883 // Skip selections that overlap with a range that has already been rewrapped.
6884 let selection_range = start_row..end_row;
6885 if rewrapped_row_ranges
6886 .iter()
6887 .any(|range| range.overlaps(&selection_range))
6888 {
6889 continue;
6890 }
6891
6892 let mut should_rewrap = !only_text;
6893
6894 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6895 match language_scope.language_name().0.as_ref() {
6896 "Markdown" | "Plain Text" => {
6897 should_rewrap = true;
6898 }
6899 _ => {}
6900 }
6901 }
6902
6903 // Since not all lines in the selection may be at the same indent
6904 // level, choose the indent size that is the most common between all
6905 // of the lines.
6906 //
6907 // If there is a tie, we use the deepest indent.
6908 let (indent_size, indent_end) = {
6909 let mut indent_size_occurrences = HashMap::default();
6910 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6911
6912 for row in start_row..=end_row {
6913 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6914 rows_by_indent_size.entry(indent).or_default().push(row);
6915 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6916 }
6917
6918 let indent_size = indent_size_occurrences
6919 .into_iter()
6920 .max_by_key(|(indent, count)| (*count, indent.len))
6921 .map(|(indent, _)| indent)
6922 .unwrap_or_default();
6923 let row = rows_by_indent_size[&indent_size][0];
6924 let indent_end = Point::new(row, indent_size.len);
6925
6926 (indent_size, indent_end)
6927 };
6928
6929 let mut line_prefix = indent_size.chars().collect::<String>();
6930
6931 if let Some(comment_prefix) =
6932 buffer
6933 .language_scope_at(selection.head())
6934 .and_then(|language| {
6935 language
6936 .line_comment_prefixes()
6937 .iter()
6938 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6939 .cloned()
6940 })
6941 {
6942 line_prefix.push_str(&comment_prefix);
6943 should_rewrap = true;
6944 }
6945
6946 if selection.is_empty() {
6947 'expand_upwards: while start_row > 0 {
6948 let prev_row = start_row - 1;
6949 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6950 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6951 {
6952 start_row = prev_row;
6953 } else {
6954 break 'expand_upwards;
6955 }
6956 }
6957
6958 'expand_downwards: while end_row < buffer.max_point().row {
6959 let next_row = end_row + 1;
6960 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6961 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6962 {
6963 end_row = next_row;
6964 } else {
6965 break 'expand_downwards;
6966 }
6967 }
6968 }
6969
6970 if !should_rewrap {
6971 continue;
6972 }
6973
6974 let start = Point::new(start_row, 0);
6975 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6976 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6977 let Some(lines_without_prefixes) = selection_text
6978 .lines()
6979 .map(|line| {
6980 line.strip_prefix(&line_prefix)
6981 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6982 .ok_or_else(|| {
6983 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6984 })
6985 })
6986 .collect::<Result<Vec<_>, _>>()
6987 .log_err()
6988 else {
6989 continue;
6990 };
6991
6992 let unwrapped_text = lines_without_prefixes.join(" ");
6993 let wrap_column = buffer
6994 .settings_at(Point::new(start_row, 0), cx)
6995 .preferred_line_length as usize;
6996 let mut wrapped_text = String::new();
6997 let mut current_line = line_prefix.clone();
6998 for word in unwrapped_text.split_whitespace() {
6999 if current_line.len() + word.len() >= wrap_column {
7000 wrapped_text.push_str(¤t_line);
7001 wrapped_text.push('\n');
7002 current_line.truncate(line_prefix.len());
7003 }
7004
7005 if current_line.len() > line_prefix.len() {
7006 current_line.push(' ');
7007 }
7008
7009 current_line.push_str(word);
7010 }
7011
7012 if !current_line.is_empty() {
7013 wrapped_text.push_str(¤t_line);
7014 }
7015
7016 let diff = TextDiff::from_lines(&selection_text, &wrapped_text);
7017 let mut offset = start.to_offset(&buffer);
7018 let mut moved_since_edit = true;
7019
7020 for change in diff.iter_all_changes() {
7021 let value = change.value();
7022 match change.tag() {
7023 ChangeTag::Equal => {
7024 offset += value.len();
7025 moved_since_edit = true;
7026 }
7027 ChangeTag::Delete => {
7028 let start = buffer.anchor_after(offset);
7029 let end = buffer.anchor_before(offset + value.len());
7030
7031 if moved_since_edit {
7032 edits.push((start..end, String::new()));
7033 } else {
7034 edits.last_mut().unwrap().0.end = end;
7035 }
7036
7037 offset += value.len();
7038 moved_since_edit = false;
7039 }
7040 ChangeTag::Insert => {
7041 if moved_since_edit {
7042 let anchor = buffer.anchor_after(offset);
7043 edits.push((anchor..anchor, value.to_string()));
7044 } else {
7045 edits.last_mut().unwrap().1.push_str(value);
7046 }
7047
7048 moved_since_edit = false;
7049 }
7050 }
7051 }
7052
7053 rewrapped_row_ranges.push(start_row..=end_row);
7054 }
7055
7056 self.buffer
7057 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7058 }
7059
7060 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7061 let mut text = String::new();
7062 let buffer = self.buffer.read(cx).snapshot(cx);
7063 let mut selections = self.selections.all::<Point>(cx);
7064 let mut clipboard_selections = Vec::with_capacity(selections.len());
7065 {
7066 let max_point = buffer.max_point();
7067 let mut is_first = true;
7068 for selection in &mut selections {
7069 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7070 if is_entire_line {
7071 selection.start = Point::new(selection.start.row, 0);
7072 if !selection.is_empty() && selection.end.column == 0 {
7073 selection.end = cmp::min(max_point, selection.end);
7074 } else {
7075 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7076 }
7077 selection.goal = SelectionGoal::None;
7078 }
7079 if is_first {
7080 is_first = false;
7081 } else {
7082 text += "\n";
7083 }
7084 let mut len = 0;
7085 for chunk in buffer.text_for_range(selection.start..selection.end) {
7086 text.push_str(chunk);
7087 len += chunk.len();
7088 }
7089 clipboard_selections.push(ClipboardSelection {
7090 len,
7091 is_entire_line,
7092 first_line_indent: buffer
7093 .indent_size_for_line(MultiBufferRow(selection.start.row))
7094 .len,
7095 });
7096 }
7097 }
7098
7099 self.transact(cx, |this, cx| {
7100 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7101 s.select(selections);
7102 });
7103 this.insert("", cx);
7104 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7105 text,
7106 clipboard_selections,
7107 ));
7108 });
7109 }
7110
7111 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7112 let selections = self.selections.all::<Point>(cx);
7113 let buffer = self.buffer.read(cx).read(cx);
7114 let mut text = String::new();
7115
7116 let mut clipboard_selections = Vec::with_capacity(selections.len());
7117 {
7118 let max_point = buffer.max_point();
7119 let mut is_first = true;
7120 for selection in selections.iter() {
7121 let mut start = selection.start;
7122 let mut end = selection.end;
7123 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7124 if is_entire_line {
7125 start = Point::new(start.row, 0);
7126 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7127 }
7128 if is_first {
7129 is_first = false;
7130 } else {
7131 text += "\n";
7132 }
7133 let mut len = 0;
7134 for chunk in buffer.text_for_range(start..end) {
7135 text.push_str(chunk);
7136 len += chunk.len();
7137 }
7138 clipboard_selections.push(ClipboardSelection {
7139 len,
7140 is_entire_line,
7141 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7142 });
7143 }
7144 }
7145
7146 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7147 text,
7148 clipboard_selections,
7149 ));
7150 }
7151
7152 pub fn do_paste(
7153 &mut self,
7154 text: &String,
7155 clipboard_selections: Option<Vec<ClipboardSelection>>,
7156 handle_entire_lines: bool,
7157 cx: &mut ViewContext<Self>,
7158 ) {
7159 if self.read_only(cx) {
7160 return;
7161 }
7162
7163 let clipboard_text = Cow::Borrowed(text);
7164
7165 self.transact(cx, |this, cx| {
7166 if let Some(mut clipboard_selections) = clipboard_selections {
7167 let old_selections = this.selections.all::<usize>(cx);
7168 let all_selections_were_entire_line =
7169 clipboard_selections.iter().all(|s| s.is_entire_line);
7170 let first_selection_indent_column =
7171 clipboard_selections.first().map(|s| s.first_line_indent);
7172 if clipboard_selections.len() != old_selections.len() {
7173 clipboard_selections.drain(..);
7174 }
7175
7176 this.buffer.update(cx, |buffer, cx| {
7177 let snapshot = buffer.read(cx);
7178 let mut start_offset = 0;
7179 let mut edits = Vec::new();
7180 let mut original_indent_columns = Vec::new();
7181 for (ix, selection) in old_selections.iter().enumerate() {
7182 let to_insert;
7183 let entire_line;
7184 let original_indent_column;
7185 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7186 let end_offset = start_offset + clipboard_selection.len;
7187 to_insert = &clipboard_text[start_offset..end_offset];
7188 entire_line = clipboard_selection.is_entire_line;
7189 start_offset = end_offset + 1;
7190 original_indent_column = Some(clipboard_selection.first_line_indent);
7191 } else {
7192 to_insert = clipboard_text.as_str();
7193 entire_line = all_selections_were_entire_line;
7194 original_indent_column = first_selection_indent_column
7195 }
7196
7197 // If the corresponding selection was empty when this slice of the
7198 // clipboard text was written, then the entire line containing the
7199 // selection was copied. If this selection is also currently empty,
7200 // then paste the line before the current line of the buffer.
7201 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7202 let column = selection.start.to_point(&snapshot).column as usize;
7203 let line_start = selection.start - column;
7204 line_start..line_start
7205 } else {
7206 selection.range()
7207 };
7208
7209 edits.push((range, to_insert));
7210 original_indent_columns.extend(original_indent_column);
7211 }
7212 drop(snapshot);
7213
7214 buffer.edit(
7215 edits,
7216 Some(AutoindentMode::Block {
7217 original_indent_columns,
7218 }),
7219 cx,
7220 );
7221 });
7222
7223 let selections = this.selections.all::<usize>(cx);
7224 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7225 } else {
7226 this.insert(&clipboard_text, cx);
7227 }
7228 });
7229 }
7230
7231 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7232 if let Some(item) = cx.read_from_clipboard() {
7233 let entries = item.entries();
7234
7235 match entries.first() {
7236 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7237 // of all the pasted entries.
7238 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7239 .do_paste(
7240 clipboard_string.text(),
7241 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7242 true,
7243 cx,
7244 ),
7245 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7246 }
7247 }
7248 }
7249
7250 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7251 if self.read_only(cx) {
7252 return;
7253 }
7254
7255 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7256 if let Some((selections, _)) =
7257 self.selection_history.transaction(transaction_id).cloned()
7258 {
7259 self.change_selections(None, cx, |s| {
7260 s.select_anchors(selections.to_vec());
7261 });
7262 }
7263 self.request_autoscroll(Autoscroll::fit(), cx);
7264 self.unmark_text(cx);
7265 self.refresh_inline_completion(true, false, cx);
7266 cx.emit(EditorEvent::Edited { transaction_id });
7267 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7268 }
7269 }
7270
7271 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7272 if self.read_only(cx) {
7273 return;
7274 }
7275
7276 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7277 if let Some((_, Some(selections))) =
7278 self.selection_history.transaction(transaction_id).cloned()
7279 {
7280 self.change_selections(None, cx, |s| {
7281 s.select_anchors(selections.to_vec());
7282 });
7283 }
7284 self.request_autoscroll(Autoscroll::fit(), cx);
7285 self.unmark_text(cx);
7286 self.refresh_inline_completion(true, false, cx);
7287 cx.emit(EditorEvent::Edited { transaction_id });
7288 }
7289 }
7290
7291 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7292 self.buffer
7293 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7294 }
7295
7296 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7297 self.buffer
7298 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7299 }
7300
7301 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7302 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7303 let line_mode = s.line_mode;
7304 s.move_with(|map, selection| {
7305 let cursor = if selection.is_empty() && !line_mode {
7306 movement::left(map, selection.start)
7307 } else {
7308 selection.start
7309 };
7310 selection.collapse_to(cursor, SelectionGoal::None);
7311 });
7312 })
7313 }
7314
7315 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7316 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7317 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7318 })
7319 }
7320
7321 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7322 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7323 let line_mode = s.line_mode;
7324 s.move_with(|map, selection| {
7325 let cursor = if selection.is_empty() && !line_mode {
7326 movement::right(map, selection.end)
7327 } else {
7328 selection.end
7329 };
7330 selection.collapse_to(cursor, SelectionGoal::None)
7331 });
7332 })
7333 }
7334
7335 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7336 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7337 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7338 })
7339 }
7340
7341 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7342 if self.take_rename(true, cx).is_some() {
7343 return;
7344 }
7345
7346 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7347 cx.propagate();
7348 return;
7349 }
7350
7351 let text_layout_details = &self.text_layout_details(cx);
7352 let selection_count = self.selections.count();
7353 let first_selection = self.selections.first_anchor();
7354
7355 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7356 let line_mode = s.line_mode;
7357 s.move_with(|map, selection| {
7358 if !selection.is_empty() && !line_mode {
7359 selection.goal = SelectionGoal::None;
7360 }
7361 let (cursor, goal) = movement::up(
7362 map,
7363 selection.start,
7364 selection.goal,
7365 false,
7366 text_layout_details,
7367 );
7368 selection.collapse_to(cursor, goal);
7369 });
7370 });
7371
7372 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7373 {
7374 cx.propagate();
7375 }
7376 }
7377
7378 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7379 if self.take_rename(true, cx).is_some() {
7380 return;
7381 }
7382
7383 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7384 cx.propagate();
7385 return;
7386 }
7387
7388 let text_layout_details = &self.text_layout_details(cx);
7389
7390 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7391 let line_mode = s.line_mode;
7392 s.move_with(|map, selection| {
7393 if !selection.is_empty() && !line_mode {
7394 selection.goal = SelectionGoal::None;
7395 }
7396 let (cursor, goal) = movement::up_by_rows(
7397 map,
7398 selection.start,
7399 action.lines,
7400 selection.goal,
7401 false,
7402 text_layout_details,
7403 );
7404 selection.collapse_to(cursor, goal);
7405 });
7406 })
7407 }
7408
7409 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7410 if self.take_rename(true, cx).is_some() {
7411 return;
7412 }
7413
7414 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7415 cx.propagate();
7416 return;
7417 }
7418
7419 let text_layout_details = &self.text_layout_details(cx);
7420
7421 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7422 let line_mode = s.line_mode;
7423 s.move_with(|map, selection| {
7424 if !selection.is_empty() && !line_mode {
7425 selection.goal = SelectionGoal::None;
7426 }
7427 let (cursor, goal) = movement::down_by_rows(
7428 map,
7429 selection.start,
7430 action.lines,
7431 selection.goal,
7432 false,
7433 text_layout_details,
7434 );
7435 selection.collapse_to(cursor, goal);
7436 });
7437 })
7438 }
7439
7440 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7441 let text_layout_details = &self.text_layout_details(cx);
7442 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7443 s.move_heads_with(|map, head, goal| {
7444 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7445 })
7446 })
7447 }
7448
7449 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7450 let text_layout_details = &self.text_layout_details(cx);
7451 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7452 s.move_heads_with(|map, head, goal| {
7453 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7454 })
7455 })
7456 }
7457
7458 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7459 let Some(row_count) = self.visible_row_count() else {
7460 return;
7461 };
7462
7463 let text_layout_details = &self.text_layout_details(cx);
7464
7465 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7466 s.move_heads_with(|map, head, goal| {
7467 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7468 })
7469 })
7470 }
7471
7472 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7473 if self.take_rename(true, cx).is_some() {
7474 return;
7475 }
7476
7477 if self
7478 .context_menu
7479 .write()
7480 .as_mut()
7481 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7482 .unwrap_or(false)
7483 {
7484 return;
7485 }
7486
7487 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7488 cx.propagate();
7489 return;
7490 }
7491
7492 let Some(row_count) = self.visible_row_count() else {
7493 return;
7494 };
7495
7496 let autoscroll = if action.center_cursor {
7497 Autoscroll::center()
7498 } else {
7499 Autoscroll::fit()
7500 };
7501
7502 let text_layout_details = &self.text_layout_details(cx);
7503
7504 self.change_selections(Some(autoscroll), cx, |s| {
7505 let line_mode = s.line_mode;
7506 s.move_with(|map, selection| {
7507 if !selection.is_empty() && !line_mode {
7508 selection.goal = SelectionGoal::None;
7509 }
7510 let (cursor, goal) = movement::up_by_rows(
7511 map,
7512 selection.end,
7513 row_count,
7514 selection.goal,
7515 false,
7516 text_layout_details,
7517 );
7518 selection.collapse_to(cursor, goal);
7519 });
7520 });
7521 }
7522
7523 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7524 let text_layout_details = &self.text_layout_details(cx);
7525 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7526 s.move_heads_with(|map, head, goal| {
7527 movement::up(map, head, goal, false, text_layout_details)
7528 })
7529 })
7530 }
7531
7532 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7533 self.take_rename(true, cx);
7534
7535 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7536 cx.propagate();
7537 return;
7538 }
7539
7540 let text_layout_details = &self.text_layout_details(cx);
7541 let selection_count = self.selections.count();
7542 let first_selection = self.selections.first_anchor();
7543
7544 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7545 let line_mode = s.line_mode;
7546 s.move_with(|map, selection| {
7547 if !selection.is_empty() && !line_mode {
7548 selection.goal = SelectionGoal::None;
7549 }
7550 let (cursor, goal) = movement::down(
7551 map,
7552 selection.end,
7553 selection.goal,
7554 false,
7555 text_layout_details,
7556 );
7557 selection.collapse_to(cursor, goal);
7558 });
7559 });
7560
7561 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7562 {
7563 cx.propagate();
7564 }
7565 }
7566
7567 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7568 let Some(row_count) = self.visible_row_count() else {
7569 return;
7570 };
7571
7572 let text_layout_details = &self.text_layout_details(cx);
7573
7574 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7575 s.move_heads_with(|map, head, goal| {
7576 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7577 })
7578 })
7579 }
7580
7581 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7582 if self.take_rename(true, cx).is_some() {
7583 return;
7584 }
7585
7586 if self
7587 .context_menu
7588 .write()
7589 .as_mut()
7590 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7591 .unwrap_or(false)
7592 {
7593 return;
7594 }
7595
7596 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7597 cx.propagate();
7598 return;
7599 }
7600
7601 let Some(row_count) = self.visible_row_count() else {
7602 return;
7603 };
7604
7605 let autoscroll = if action.center_cursor {
7606 Autoscroll::center()
7607 } else {
7608 Autoscroll::fit()
7609 };
7610
7611 let text_layout_details = &self.text_layout_details(cx);
7612 self.change_selections(Some(autoscroll), cx, |s| {
7613 let line_mode = s.line_mode;
7614 s.move_with(|map, selection| {
7615 if !selection.is_empty() && !line_mode {
7616 selection.goal = SelectionGoal::None;
7617 }
7618 let (cursor, goal) = movement::down_by_rows(
7619 map,
7620 selection.end,
7621 row_count,
7622 selection.goal,
7623 false,
7624 text_layout_details,
7625 );
7626 selection.collapse_to(cursor, goal);
7627 });
7628 });
7629 }
7630
7631 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7632 let text_layout_details = &self.text_layout_details(cx);
7633 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7634 s.move_heads_with(|map, head, goal| {
7635 movement::down(map, head, goal, false, text_layout_details)
7636 })
7637 });
7638 }
7639
7640 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7641 if let Some(context_menu) = self.context_menu.write().as_mut() {
7642 context_menu.select_first(self.completion_provider.as_deref(), cx);
7643 }
7644 }
7645
7646 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7647 if let Some(context_menu) = self.context_menu.write().as_mut() {
7648 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7649 }
7650 }
7651
7652 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7653 if let Some(context_menu) = self.context_menu.write().as_mut() {
7654 context_menu.select_next(self.completion_provider.as_deref(), cx);
7655 }
7656 }
7657
7658 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7659 if let Some(context_menu) = self.context_menu.write().as_mut() {
7660 context_menu.select_last(self.completion_provider.as_deref(), cx);
7661 }
7662 }
7663
7664 pub fn move_to_previous_word_start(
7665 &mut self,
7666 _: &MoveToPreviousWordStart,
7667 cx: &mut ViewContext<Self>,
7668 ) {
7669 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7670 s.move_cursors_with(|map, head, _| {
7671 (
7672 movement::previous_word_start(map, head),
7673 SelectionGoal::None,
7674 )
7675 });
7676 })
7677 }
7678
7679 pub fn move_to_previous_subword_start(
7680 &mut self,
7681 _: &MoveToPreviousSubwordStart,
7682 cx: &mut ViewContext<Self>,
7683 ) {
7684 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7685 s.move_cursors_with(|map, head, _| {
7686 (
7687 movement::previous_subword_start(map, head),
7688 SelectionGoal::None,
7689 )
7690 });
7691 })
7692 }
7693
7694 pub fn select_to_previous_word_start(
7695 &mut self,
7696 _: &SelectToPreviousWordStart,
7697 cx: &mut ViewContext<Self>,
7698 ) {
7699 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7700 s.move_heads_with(|map, head, _| {
7701 (
7702 movement::previous_word_start(map, head),
7703 SelectionGoal::None,
7704 )
7705 });
7706 })
7707 }
7708
7709 pub fn select_to_previous_subword_start(
7710 &mut self,
7711 _: &SelectToPreviousSubwordStart,
7712 cx: &mut ViewContext<Self>,
7713 ) {
7714 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7715 s.move_heads_with(|map, head, _| {
7716 (
7717 movement::previous_subword_start(map, head),
7718 SelectionGoal::None,
7719 )
7720 });
7721 })
7722 }
7723
7724 pub fn delete_to_previous_word_start(
7725 &mut self,
7726 action: &DeleteToPreviousWordStart,
7727 cx: &mut ViewContext<Self>,
7728 ) {
7729 self.transact(cx, |this, cx| {
7730 this.select_autoclose_pair(cx);
7731 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7732 let line_mode = s.line_mode;
7733 s.move_with(|map, selection| {
7734 if selection.is_empty() && !line_mode {
7735 let cursor = if action.ignore_newlines {
7736 movement::previous_word_start(map, selection.head())
7737 } else {
7738 movement::previous_word_start_or_newline(map, selection.head())
7739 };
7740 selection.set_head(cursor, SelectionGoal::None);
7741 }
7742 });
7743 });
7744 this.insert("", cx);
7745 });
7746 }
7747
7748 pub fn delete_to_previous_subword_start(
7749 &mut self,
7750 _: &DeleteToPreviousSubwordStart,
7751 cx: &mut ViewContext<Self>,
7752 ) {
7753 self.transact(cx, |this, cx| {
7754 this.select_autoclose_pair(cx);
7755 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7756 let line_mode = s.line_mode;
7757 s.move_with(|map, selection| {
7758 if selection.is_empty() && !line_mode {
7759 let cursor = movement::previous_subword_start(map, selection.head());
7760 selection.set_head(cursor, SelectionGoal::None);
7761 }
7762 });
7763 });
7764 this.insert("", cx);
7765 });
7766 }
7767
7768 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7769 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7770 s.move_cursors_with(|map, head, _| {
7771 (movement::next_word_end(map, head), SelectionGoal::None)
7772 });
7773 })
7774 }
7775
7776 pub fn move_to_next_subword_end(
7777 &mut self,
7778 _: &MoveToNextSubwordEnd,
7779 cx: &mut ViewContext<Self>,
7780 ) {
7781 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7782 s.move_cursors_with(|map, head, _| {
7783 (movement::next_subword_end(map, head), SelectionGoal::None)
7784 });
7785 })
7786 }
7787
7788 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7789 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7790 s.move_heads_with(|map, head, _| {
7791 (movement::next_word_end(map, head), SelectionGoal::None)
7792 });
7793 })
7794 }
7795
7796 pub fn select_to_next_subword_end(
7797 &mut self,
7798 _: &SelectToNextSubwordEnd,
7799 cx: &mut ViewContext<Self>,
7800 ) {
7801 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7802 s.move_heads_with(|map, head, _| {
7803 (movement::next_subword_end(map, head), SelectionGoal::None)
7804 });
7805 })
7806 }
7807
7808 pub fn delete_to_next_word_end(
7809 &mut self,
7810 action: &DeleteToNextWordEnd,
7811 cx: &mut ViewContext<Self>,
7812 ) {
7813 self.transact(cx, |this, cx| {
7814 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7815 let line_mode = s.line_mode;
7816 s.move_with(|map, selection| {
7817 if selection.is_empty() && !line_mode {
7818 let cursor = if action.ignore_newlines {
7819 movement::next_word_end(map, selection.head())
7820 } else {
7821 movement::next_word_end_or_newline(map, selection.head())
7822 };
7823 selection.set_head(cursor, SelectionGoal::None);
7824 }
7825 });
7826 });
7827 this.insert("", cx);
7828 });
7829 }
7830
7831 pub fn delete_to_next_subword_end(
7832 &mut self,
7833 _: &DeleteToNextSubwordEnd,
7834 cx: &mut ViewContext<Self>,
7835 ) {
7836 self.transact(cx, |this, cx| {
7837 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7838 s.move_with(|map, selection| {
7839 if selection.is_empty() {
7840 let cursor = movement::next_subword_end(map, selection.head());
7841 selection.set_head(cursor, SelectionGoal::None);
7842 }
7843 });
7844 });
7845 this.insert("", cx);
7846 });
7847 }
7848
7849 pub fn move_to_beginning_of_line(
7850 &mut self,
7851 action: &MoveToBeginningOfLine,
7852 cx: &mut ViewContext<Self>,
7853 ) {
7854 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7855 s.move_cursors_with(|map, head, _| {
7856 (
7857 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7858 SelectionGoal::None,
7859 )
7860 });
7861 })
7862 }
7863
7864 pub fn select_to_beginning_of_line(
7865 &mut self,
7866 action: &SelectToBeginningOfLine,
7867 cx: &mut ViewContext<Self>,
7868 ) {
7869 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7870 s.move_heads_with(|map, head, _| {
7871 (
7872 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7873 SelectionGoal::None,
7874 )
7875 });
7876 });
7877 }
7878
7879 pub fn delete_to_beginning_of_line(
7880 &mut self,
7881 _: &DeleteToBeginningOfLine,
7882 cx: &mut ViewContext<Self>,
7883 ) {
7884 self.transact(cx, |this, cx| {
7885 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7886 s.move_with(|_, selection| {
7887 selection.reversed = true;
7888 });
7889 });
7890
7891 this.select_to_beginning_of_line(
7892 &SelectToBeginningOfLine {
7893 stop_at_soft_wraps: false,
7894 },
7895 cx,
7896 );
7897 this.backspace(&Backspace, cx);
7898 });
7899 }
7900
7901 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7902 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7903 s.move_cursors_with(|map, head, _| {
7904 (
7905 movement::line_end(map, head, action.stop_at_soft_wraps),
7906 SelectionGoal::None,
7907 )
7908 });
7909 })
7910 }
7911
7912 pub fn select_to_end_of_line(
7913 &mut self,
7914 action: &SelectToEndOfLine,
7915 cx: &mut ViewContext<Self>,
7916 ) {
7917 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7918 s.move_heads_with(|map, head, _| {
7919 (
7920 movement::line_end(map, head, action.stop_at_soft_wraps),
7921 SelectionGoal::None,
7922 )
7923 });
7924 })
7925 }
7926
7927 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7928 self.transact(cx, |this, cx| {
7929 this.select_to_end_of_line(
7930 &SelectToEndOfLine {
7931 stop_at_soft_wraps: false,
7932 },
7933 cx,
7934 );
7935 this.delete(&Delete, cx);
7936 });
7937 }
7938
7939 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7940 self.transact(cx, |this, cx| {
7941 this.select_to_end_of_line(
7942 &SelectToEndOfLine {
7943 stop_at_soft_wraps: false,
7944 },
7945 cx,
7946 );
7947 this.cut(&Cut, cx);
7948 });
7949 }
7950
7951 pub fn move_to_start_of_paragraph(
7952 &mut self,
7953 _: &MoveToStartOfParagraph,
7954 cx: &mut ViewContext<Self>,
7955 ) {
7956 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7957 cx.propagate();
7958 return;
7959 }
7960
7961 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7962 s.move_with(|map, selection| {
7963 selection.collapse_to(
7964 movement::start_of_paragraph(map, selection.head(), 1),
7965 SelectionGoal::None,
7966 )
7967 });
7968 })
7969 }
7970
7971 pub fn move_to_end_of_paragraph(
7972 &mut self,
7973 _: &MoveToEndOfParagraph,
7974 cx: &mut ViewContext<Self>,
7975 ) {
7976 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7977 cx.propagate();
7978 return;
7979 }
7980
7981 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7982 s.move_with(|map, selection| {
7983 selection.collapse_to(
7984 movement::end_of_paragraph(map, selection.head(), 1),
7985 SelectionGoal::None,
7986 )
7987 });
7988 })
7989 }
7990
7991 pub fn select_to_start_of_paragraph(
7992 &mut self,
7993 _: &SelectToStartOfParagraph,
7994 cx: &mut ViewContext<Self>,
7995 ) {
7996 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7997 cx.propagate();
7998 return;
7999 }
8000
8001 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8002 s.move_heads_with(|map, head, _| {
8003 (
8004 movement::start_of_paragraph(map, head, 1),
8005 SelectionGoal::None,
8006 )
8007 });
8008 })
8009 }
8010
8011 pub fn select_to_end_of_paragraph(
8012 &mut self,
8013 _: &SelectToEndOfParagraph,
8014 cx: &mut ViewContext<Self>,
8015 ) {
8016 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8017 cx.propagate();
8018 return;
8019 }
8020
8021 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8022 s.move_heads_with(|map, head, _| {
8023 (
8024 movement::end_of_paragraph(map, head, 1),
8025 SelectionGoal::None,
8026 )
8027 });
8028 })
8029 }
8030
8031 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
8032 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8033 cx.propagate();
8034 return;
8035 }
8036
8037 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8038 s.select_ranges(vec![0..0]);
8039 });
8040 }
8041
8042 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
8043 let mut selection = self.selections.last::<Point>(cx);
8044 selection.set_head(Point::zero(), SelectionGoal::None);
8045
8046 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8047 s.select(vec![selection]);
8048 });
8049 }
8050
8051 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
8052 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8053 cx.propagate();
8054 return;
8055 }
8056
8057 let cursor = self.buffer.read(cx).read(cx).len();
8058 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8059 s.select_ranges(vec![cursor..cursor])
8060 });
8061 }
8062
8063 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8064 self.nav_history = nav_history;
8065 }
8066
8067 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8068 self.nav_history.as_ref()
8069 }
8070
8071 fn push_to_nav_history(
8072 &mut self,
8073 cursor_anchor: Anchor,
8074 new_position: Option<Point>,
8075 cx: &mut ViewContext<Self>,
8076 ) {
8077 if let Some(nav_history) = self.nav_history.as_mut() {
8078 let buffer = self.buffer.read(cx).read(cx);
8079 let cursor_position = cursor_anchor.to_point(&buffer);
8080 let scroll_state = self.scroll_manager.anchor();
8081 let scroll_top_row = scroll_state.top_row(&buffer);
8082 drop(buffer);
8083
8084 if let Some(new_position) = new_position {
8085 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8086 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8087 return;
8088 }
8089 }
8090
8091 nav_history.push(
8092 Some(NavigationData {
8093 cursor_anchor,
8094 cursor_position,
8095 scroll_anchor: scroll_state,
8096 scroll_top_row,
8097 }),
8098 cx,
8099 );
8100 }
8101 }
8102
8103 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8104 let buffer = self.buffer.read(cx).snapshot(cx);
8105 let mut selection = self.selections.first::<usize>(cx);
8106 selection.set_head(buffer.len(), SelectionGoal::None);
8107 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8108 s.select(vec![selection]);
8109 });
8110 }
8111
8112 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8113 let end = self.buffer.read(cx).read(cx).len();
8114 self.change_selections(None, cx, |s| {
8115 s.select_ranges(vec![0..end]);
8116 });
8117 }
8118
8119 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8120 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8121 let mut selections = self.selections.all::<Point>(cx);
8122 let max_point = display_map.buffer_snapshot.max_point();
8123 for selection in &mut selections {
8124 let rows = selection.spanned_rows(true, &display_map);
8125 selection.start = Point::new(rows.start.0, 0);
8126 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8127 selection.reversed = false;
8128 }
8129 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8130 s.select(selections);
8131 });
8132 }
8133
8134 pub fn split_selection_into_lines(
8135 &mut self,
8136 _: &SplitSelectionIntoLines,
8137 cx: &mut ViewContext<Self>,
8138 ) {
8139 let mut to_unfold = Vec::new();
8140 let mut new_selection_ranges = Vec::new();
8141 {
8142 let selections = self.selections.all::<Point>(cx);
8143 let buffer = self.buffer.read(cx).read(cx);
8144 for selection in selections {
8145 for row in selection.start.row..selection.end.row {
8146 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8147 new_selection_ranges.push(cursor..cursor);
8148 }
8149 new_selection_ranges.push(selection.end..selection.end);
8150 to_unfold.push(selection.start..selection.end);
8151 }
8152 }
8153 self.unfold_ranges(to_unfold, true, true, cx);
8154 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8155 s.select_ranges(new_selection_ranges);
8156 });
8157 }
8158
8159 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8160 self.add_selection(true, cx);
8161 }
8162
8163 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8164 self.add_selection(false, cx);
8165 }
8166
8167 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8168 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8169 let mut selections = self.selections.all::<Point>(cx);
8170 let text_layout_details = self.text_layout_details(cx);
8171 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8172 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8173 let range = oldest_selection.display_range(&display_map).sorted();
8174
8175 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8176 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8177 let positions = start_x.min(end_x)..start_x.max(end_x);
8178
8179 selections.clear();
8180 let mut stack = Vec::new();
8181 for row in range.start.row().0..=range.end.row().0 {
8182 if let Some(selection) = self.selections.build_columnar_selection(
8183 &display_map,
8184 DisplayRow(row),
8185 &positions,
8186 oldest_selection.reversed,
8187 &text_layout_details,
8188 ) {
8189 stack.push(selection.id);
8190 selections.push(selection);
8191 }
8192 }
8193
8194 if above {
8195 stack.reverse();
8196 }
8197
8198 AddSelectionsState { above, stack }
8199 });
8200
8201 let last_added_selection = *state.stack.last().unwrap();
8202 let mut new_selections = Vec::new();
8203 if above == state.above {
8204 let end_row = if above {
8205 DisplayRow(0)
8206 } else {
8207 display_map.max_point().row()
8208 };
8209
8210 'outer: for selection in selections {
8211 if selection.id == last_added_selection {
8212 let range = selection.display_range(&display_map).sorted();
8213 debug_assert_eq!(range.start.row(), range.end.row());
8214 let mut row = range.start.row();
8215 let positions =
8216 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8217 px(start)..px(end)
8218 } else {
8219 let start_x =
8220 display_map.x_for_display_point(range.start, &text_layout_details);
8221 let end_x =
8222 display_map.x_for_display_point(range.end, &text_layout_details);
8223 start_x.min(end_x)..start_x.max(end_x)
8224 };
8225
8226 while row != end_row {
8227 if above {
8228 row.0 -= 1;
8229 } else {
8230 row.0 += 1;
8231 }
8232
8233 if let Some(new_selection) = self.selections.build_columnar_selection(
8234 &display_map,
8235 row,
8236 &positions,
8237 selection.reversed,
8238 &text_layout_details,
8239 ) {
8240 state.stack.push(new_selection.id);
8241 if above {
8242 new_selections.push(new_selection);
8243 new_selections.push(selection);
8244 } else {
8245 new_selections.push(selection);
8246 new_selections.push(new_selection);
8247 }
8248
8249 continue 'outer;
8250 }
8251 }
8252 }
8253
8254 new_selections.push(selection);
8255 }
8256 } else {
8257 new_selections = selections;
8258 new_selections.retain(|s| s.id != last_added_selection);
8259 state.stack.pop();
8260 }
8261
8262 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8263 s.select(new_selections);
8264 });
8265 if state.stack.len() > 1 {
8266 self.add_selections_state = Some(state);
8267 }
8268 }
8269
8270 pub fn select_next_match_internal(
8271 &mut self,
8272 display_map: &DisplaySnapshot,
8273 replace_newest: bool,
8274 autoscroll: Option<Autoscroll>,
8275 cx: &mut ViewContext<Self>,
8276 ) -> Result<()> {
8277 fn select_next_match_ranges(
8278 this: &mut Editor,
8279 range: Range<usize>,
8280 replace_newest: bool,
8281 auto_scroll: Option<Autoscroll>,
8282 cx: &mut ViewContext<Editor>,
8283 ) {
8284 this.unfold_ranges([range.clone()], false, true, cx);
8285 this.change_selections(auto_scroll, cx, |s| {
8286 if replace_newest {
8287 s.delete(s.newest_anchor().id);
8288 }
8289 s.insert_range(range.clone());
8290 });
8291 }
8292
8293 let buffer = &display_map.buffer_snapshot;
8294 let mut selections = self.selections.all::<usize>(cx);
8295 if let Some(mut select_next_state) = self.select_next_state.take() {
8296 let query = &select_next_state.query;
8297 if !select_next_state.done {
8298 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8299 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8300 let mut next_selected_range = None;
8301
8302 let bytes_after_last_selection =
8303 buffer.bytes_in_range(last_selection.end..buffer.len());
8304 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8305 let query_matches = query
8306 .stream_find_iter(bytes_after_last_selection)
8307 .map(|result| (last_selection.end, result))
8308 .chain(
8309 query
8310 .stream_find_iter(bytes_before_first_selection)
8311 .map(|result| (0, result)),
8312 );
8313
8314 for (start_offset, query_match) in query_matches {
8315 let query_match = query_match.unwrap(); // can only fail due to I/O
8316 let offset_range =
8317 start_offset + query_match.start()..start_offset + query_match.end();
8318 let display_range = offset_range.start.to_display_point(display_map)
8319 ..offset_range.end.to_display_point(display_map);
8320
8321 if !select_next_state.wordwise
8322 || (!movement::is_inside_word(display_map, display_range.start)
8323 && !movement::is_inside_word(display_map, display_range.end))
8324 {
8325 // TODO: This is n^2, because we might check all the selections
8326 if !selections
8327 .iter()
8328 .any(|selection| selection.range().overlaps(&offset_range))
8329 {
8330 next_selected_range = Some(offset_range);
8331 break;
8332 }
8333 }
8334 }
8335
8336 if let Some(next_selected_range) = next_selected_range {
8337 select_next_match_ranges(
8338 self,
8339 next_selected_range,
8340 replace_newest,
8341 autoscroll,
8342 cx,
8343 );
8344 } else {
8345 select_next_state.done = true;
8346 }
8347 }
8348
8349 self.select_next_state = Some(select_next_state);
8350 } else {
8351 let mut only_carets = true;
8352 let mut same_text_selected = true;
8353 let mut selected_text = None;
8354
8355 let mut selections_iter = selections.iter().peekable();
8356 while let Some(selection) = selections_iter.next() {
8357 if selection.start != selection.end {
8358 only_carets = false;
8359 }
8360
8361 if same_text_selected {
8362 if selected_text.is_none() {
8363 selected_text =
8364 Some(buffer.text_for_range(selection.range()).collect::<String>());
8365 }
8366
8367 if let Some(next_selection) = selections_iter.peek() {
8368 if next_selection.range().len() == selection.range().len() {
8369 let next_selected_text = buffer
8370 .text_for_range(next_selection.range())
8371 .collect::<String>();
8372 if Some(next_selected_text) != selected_text {
8373 same_text_selected = false;
8374 selected_text = None;
8375 }
8376 } else {
8377 same_text_selected = false;
8378 selected_text = None;
8379 }
8380 }
8381 }
8382 }
8383
8384 if only_carets {
8385 for selection in &mut selections {
8386 let word_range = movement::surrounding_word(
8387 display_map,
8388 selection.start.to_display_point(display_map),
8389 );
8390 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8391 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8392 selection.goal = SelectionGoal::None;
8393 selection.reversed = false;
8394 select_next_match_ranges(
8395 self,
8396 selection.start..selection.end,
8397 replace_newest,
8398 autoscroll,
8399 cx,
8400 );
8401 }
8402
8403 if selections.len() == 1 {
8404 let selection = selections
8405 .last()
8406 .expect("ensured that there's only one selection");
8407 let query = buffer
8408 .text_for_range(selection.start..selection.end)
8409 .collect::<String>();
8410 let is_empty = query.is_empty();
8411 let select_state = SelectNextState {
8412 query: AhoCorasick::new(&[query])?,
8413 wordwise: true,
8414 done: is_empty,
8415 };
8416 self.select_next_state = Some(select_state);
8417 } else {
8418 self.select_next_state = None;
8419 }
8420 } else if let Some(selected_text) = selected_text {
8421 self.select_next_state = Some(SelectNextState {
8422 query: AhoCorasick::new(&[selected_text])?,
8423 wordwise: false,
8424 done: false,
8425 });
8426 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8427 }
8428 }
8429 Ok(())
8430 }
8431
8432 pub fn select_all_matches(
8433 &mut self,
8434 _action: &SelectAllMatches,
8435 cx: &mut ViewContext<Self>,
8436 ) -> Result<()> {
8437 self.push_to_selection_history();
8438 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8439
8440 self.select_next_match_internal(&display_map, false, None, cx)?;
8441 let Some(select_next_state) = self.select_next_state.as_mut() else {
8442 return Ok(());
8443 };
8444 if select_next_state.done {
8445 return Ok(());
8446 }
8447
8448 let mut new_selections = self.selections.all::<usize>(cx);
8449
8450 let buffer = &display_map.buffer_snapshot;
8451 let query_matches = select_next_state
8452 .query
8453 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8454
8455 for query_match in query_matches {
8456 let query_match = query_match.unwrap(); // can only fail due to I/O
8457 let offset_range = query_match.start()..query_match.end();
8458 let display_range = offset_range.start.to_display_point(&display_map)
8459 ..offset_range.end.to_display_point(&display_map);
8460
8461 if !select_next_state.wordwise
8462 || (!movement::is_inside_word(&display_map, display_range.start)
8463 && !movement::is_inside_word(&display_map, display_range.end))
8464 {
8465 self.selections.change_with(cx, |selections| {
8466 new_selections.push(Selection {
8467 id: selections.new_selection_id(),
8468 start: offset_range.start,
8469 end: offset_range.end,
8470 reversed: false,
8471 goal: SelectionGoal::None,
8472 });
8473 });
8474 }
8475 }
8476
8477 new_selections.sort_by_key(|selection| selection.start);
8478 let mut ix = 0;
8479 while ix + 1 < new_selections.len() {
8480 let current_selection = &new_selections[ix];
8481 let next_selection = &new_selections[ix + 1];
8482 if current_selection.range().overlaps(&next_selection.range()) {
8483 if current_selection.id < next_selection.id {
8484 new_selections.remove(ix + 1);
8485 } else {
8486 new_selections.remove(ix);
8487 }
8488 } else {
8489 ix += 1;
8490 }
8491 }
8492
8493 select_next_state.done = true;
8494 self.unfold_ranges(
8495 new_selections.iter().map(|selection| selection.range()),
8496 false,
8497 false,
8498 cx,
8499 );
8500 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8501 selections.select(new_selections)
8502 });
8503
8504 Ok(())
8505 }
8506
8507 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8508 self.push_to_selection_history();
8509 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8510 self.select_next_match_internal(
8511 &display_map,
8512 action.replace_newest,
8513 Some(Autoscroll::newest()),
8514 cx,
8515 )?;
8516 Ok(())
8517 }
8518
8519 pub fn select_previous(
8520 &mut self,
8521 action: &SelectPrevious,
8522 cx: &mut ViewContext<Self>,
8523 ) -> Result<()> {
8524 self.push_to_selection_history();
8525 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8526 let buffer = &display_map.buffer_snapshot;
8527 let mut selections = self.selections.all::<usize>(cx);
8528 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8529 let query = &select_prev_state.query;
8530 if !select_prev_state.done {
8531 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8532 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8533 let mut next_selected_range = None;
8534 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8535 let bytes_before_last_selection =
8536 buffer.reversed_bytes_in_range(0..last_selection.start);
8537 let bytes_after_first_selection =
8538 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8539 let query_matches = query
8540 .stream_find_iter(bytes_before_last_selection)
8541 .map(|result| (last_selection.start, result))
8542 .chain(
8543 query
8544 .stream_find_iter(bytes_after_first_selection)
8545 .map(|result| (buffer.len(), result)),
8546 );
8547 for (end_offset, query_match) in query_matches {
8548 let query_match = query_match.unwrap(); // can only fail due to I/O
8549 let offset_range =
8550 end_offset - query_match.end()..end_offset - query_match.start();
8551 let display_range = offset_range.start.to_display_point(&display_map)
8552 ..offset_range.end.to_display_point(&display_map);
8553
8554 if !select_prev_state.wordwise
8555 || (!movement::is_inside_word(&display_map, display_range.start)
8556 && !movement::is_inside_word(&display_map, display_range.end))
8557 {
8558 next_selected_range = Some(offset_range);
8559 break;
8560 }
8561 }
8562
8563 if let Some(next_selected_range) = next_selected_range {
8564 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
8565 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8566 if action.replace_newest {
8567 s.delete(s.newest_anchor().id);
8568 }
8569 s.insert_range(next_selected_range);
8570 });
8571 } else {
8572 select_prev_state.done = true;
8573 }
8574 }
8575
8576 self.select_prev_state = Some(select_prev_state);
8577 } else {
8578 let mut only_carets = true;
8579 let mut same_text_selected = true;
8580 let mut selected_text = None;
8581
8582 let mut selections_iter = selections.iter().peekable();
8583 while let Some(selection) = selections_iter.next() {
8584 if selection.start != selection.end {
8585 only_carets = false;
8586 }
8587
8588 if same_text_selected {
8589 if selected_text.is_none() {
8590 selected_text =
8591 Some(buffer.text_for_range(selection.range()).collect::<String>());
8592 }
8593
8594 if let Some(next_selection) = selections_iter.peek() {
8595 if next_selection.range().len() == selection.range().len() {
8596 let next_selected_text = buffer
8597 .text_for_range(next_selection.range())
8598 .collect::<String>();
8599 if Some(next_selected_text) != selected_text {
8600 same_text_selected = false;
8601 selected_text = None;
8602 }
8603 } else {
8604 same_text_selected = false;
8605 selected_text = None;
8606 }
8607 }
8608 }
8609 }
8610
8611 if only_carets {
8612 for selection in &mut selections {
8613 let word_range = movement::surrounding_word(
8614 &display_map,
8615 selection.start.to_display_point(&display_map),
8616 );
8617 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8618 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8619 selection.goal = SelectionGoal::None;
8620 selection.reversed = false;
8621 }
8622 if selections.len() == 1 {
8623 let selection = selections
8624 .last()
8625 .expect("ensured that there's only one selection");
8626 let query = buffer
8627 .text_for_range(selection.start..selection.end)
8628 .collect::<String>();
8629 let is_empty = query.is_empty();
8630 let select_state = SelectNextState {
8631 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8632 wordwise: true,
8633 done: is_empty,
8634 };
8635 self.select_prev_state = Some(select_state);
8636 } else {
8637 self.select_prev_state = None;
8638 }
8639
8640 self.unfold_ranges(
8641 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8642 false,
8643 true,
8644 cx,
8645 );
8646 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8647 s.select(selections);
8648 });
8649 } else if let Some(selected_text) = selected_text {
8650 self.select_prev_state = Some(SelectNextState {
8651 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8652 wordwise: false,
8653 done: false,
8654 });
8655 self.select_previous(action, cx)?;
8656 }
8657 }
8658 Ok(())
8659 }
8660
8661 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8662 let text_layout_details = &self.text_layout_details(cx);
8663 self.transact(cx, |this, cx| {
8664 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8665 let mut edits = Vec::new();
8666 let mut selection_edit_ranges = Vec::new();
8667 let mut last_toggled_row = None;
8668 let snapshot = this.buffer.read(cx).read(cx);
8669 let empty_str: Arc<str> = Arc::default();
8670 let mut suffixes_inserted = Vec::new();
8671
8672 fn comment_prefix_range(
8673 snapshot: &MultiBufferSnapshot,
8674 row: MultiBufferRow,
8675 comment_prefix: &str,
8676 comment_prefix_whitespace: &str,
8677 ) -> Range<Point> {
8678 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
8679
8680 let mut line_bytes = snapshot
8681 .bytes_in_range(start..snapshot.max_point())
8682 .flatten()
8683 .copied();
8684
8685 // If this line currently begins with the line comment prefix, then record
8686 // the range containing the prefix.
8687 if line_bytes
8688 .by_ref()
8689 .take(comment_prefix.len())
8690 .eq(comment_prefix.bytes())
8691 {
8692 // Include any whitespace that matches the comment prefix.
8693 let matching_whitespace_len = line_bytes
8694 .zip(comment_prefix_whitespace.bytes())
8695 .take_while(|(a, b)| a == b)
8696 .count() as u32;
8697 let end = Point::new(
8698 start.row,
8699 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8700 );
8701 start..end
8702 } else {
8703 start..start
8704 }
8705 }
8706
8707 fn comment_suffix_range(
8708 snapshot: &MultiBufferSnapshot,
8709 row: MultiBufferRow,
8710 comment_suffix: &str,
8711 comment_suffix_has_leading_space: bool,
8712 ) -> Range<Point> {
8713 let end = Point::new(row.0, snapshot.line_len(row));
8714 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8715
8716 let mut line_end_bytes = snapshot
8717 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8718 .flatten()
8719 .copied();
8720
8721 let leading_space_len = if suffix_start_column > 0
8722 && line_end_bytes.next() == Some(b' ')
8723 && comment_suffix_has_leading_space
8724 {
8725 1
8726 } else {
8727 0
8728 };
8729
8730 // If this line currently begins with the line comment prefix, then record
8731 // the range containing the prefix.
8732 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8733 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8734 start..end
8735 } else {
8736 end..end
8737 }
8738 }
8739
8740 // TODO: Handle selections that cross excerpts
8741 for selection in &mut selections {
8742 let start_column = snapshot
8743 .indent_size_for_line(MultiBufferRow(selection.start.row))
8744 .len;
8745 let language = if let Some(language) =
8746 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8747 {
8748 language
8749 } else {
8750 continue;
8751 };
8752
8753 selection_edit_ranges.clear();
8754
8755 // If multiple selections contain a given row, avoid processing that
8756 // row more than once.
8757 let mut start_row = MultiBufferRow(selection.start.row);
8758 if last_toggled_row == Some(start_row) {
8759 start_row = start_row.next_row();
8760 }
8761 let end_row =
8762 if selection.end.row > selection.start.row && selection.end.column == 0 {
8763 MultiBufferRow(selection.end.row - 1)
8764 } else {
8765 MultiBufferRow(selection.end.row)
8766 };
8767 last_toggled_row = Some(end_row);
8768
8769 if start_row > end_row {
8770 continue;
8771 }
8772
8773 // If the language has line comments, toggle those.
8774 let full_comment_prefixes = language.line_comment_prefixes();
8775 if !full_comment_prefixes.is_empty() {
8776 let first_prefix = full_comment_prefixes
8777 .first()
8778 .expect("prefixes is non-empty");
8779 let prefix_trimmed_lengths = full_comment_prefixes
8780 .iter()
8781 .map(|p| p.trim_end_matches(' ').len())
8782 .collect::<SmallVec<[usize; 4]>>();
8783
8784 let mut all_selection_lines_are_comments = true;
8785
8786 for row in start_row.0..=end_row.0 {
8787 let row = MultiBufferRow(row);
8788 if start_row < end_row && snapshot.is_line_blank(row) {
8789 continue;
8790 }
8791
8792 let prefix_range = full_comment_prefixes
8793 .iter()
8794 .zip(prefix_trimmed_lengths.iter().copied())
8795 .map(|(prefix, trimmed_prefix_len)| {
8796 comment_prefix_range(
8797 snapshot.deref(),
8798 row,
8799 &prefix[..trimmed_prefix_len],
8800 &prefix[trimmed_prefix_len..],
8801 )
8802 })
8803 .max_by_key(|range| range.end.column - range.start.column)
8804 .expect("prefixes is non-empty");
8805
8806 if prefix_range.is_empty() {
8807 all_selection_lines_are_comments = false;
8808 }
8809
8810 selection_edit_ranges.push(prefix_range);
8811 }
8812
8813 if all_selection_lines_are_comments {
8814 edits.extend(
8815 selection_edit_ranges
8816 .iter()
8817 .cloned()
8818 .map(|range| (range, empty_str.clone())),
8819 );
8820 } else {
8821 let min_column = selection_edit_ranges
8822 .iter()
8823 .map(|range| range.start.column)
8824 .min()
8825 .unwrap_or(0);
8826 edits.extend(selection_edit_ranges.iter().map(|range| {
8827 let position = Point::new(range.start.row, min_column);
8828 (position..position, first_prefix.clone())
8829 }));
8830 }
8831 } else if let Some((full_comment_prefix, comment_suffix)) =
8832 language.block_comment_delimiters()
8833 {
8834 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8835 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8836 let prefix_range = comment_prefix_range(
8837 snapshot.deref(),
8838 start_row,
8839 comment_prefix,
8840 comment_prefix_whitespace,
8841 );
8842 let suffix_range = comment_suffix_range(
8843 snapshot.deref(),
8844 end_row,
8845 comment_suffix.trim_start_matches(' '),
8846 comment_suffix.starts_with(' '),
8847 );
8848
8849 if prefix_range.is_empty() || suffix_range.is_empty() {
8850 edits.push((
8851 prefix_range.start..prefix_range.start,
8852 full_comment_prefix.clone(),
8853 ));
8854 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8855 suffixes_inserted.push((end_row, comment_suffix.len()));
8856 } else {
8857 edits.push((prefix_range, empty_str.clone()));
8858 edits.push((suffix_range, empty_str.clone()));
8859 }
8860 } else {
8861 continue;
8862 }
8863 }
8864
8865 drop(snapshot);
8866 this.buffer.update(cx, |buffer, cx| {
8867 buffer.edit(edits, None, cx);
8868 });
8869
8870 // Adjust selections so that they end before any comment suffixes that
8871 // were inserted.
8872 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8873 let mut selections = this.selections.all::<Point>(cx);
8874 let snapshot = this.buffer.read(cx).read(cx);
8875 for selection in &mut selections {
8876 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8877 match row.cmp(&MultiBufferRow(selection.end.row)) {
8878 Ordering::Less => {
8879 suffixes_inserted.next();
8880 continue;
8881 }
8882 Ordering::Greater => break,
8883 Ordering::Equal => {
8884 if selection.end.column == snapshot.line_len(row) {
8885 if selection.is_empty() {
8886 selection.start.column -= suffix_len as u32;
8887 }
8888 selection.end.column -= suffix_len as u32;
8889 }
8890 break;
8891 }
8892 }
8893 }
8894 }
8895
8896 drop(snapshot);
8897 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8898
8899 let selections = this.selections.all::<Point>(cx);
8900 let selections_on_single_row = selections.windows(2).all(|selections| {
8901 selections[0].start.row == selections[1].start.row
8902 && selections[0].end.row == selections[1].end.row
8903 && selections[0].start.row == selections[0].end.row
8904 });
8905 let selections_selecting = selections
8906 .iter()
8907 .any(|selection| selection.start != selection.end);
8908 let advance_downwards = action.advance_downwards
8909 && selections_on_single_row
8910 && !selections_selecting
8911 && !matches!(this.mode, EditorMode::SingleLine { .. });
8912
8913 if advance_downwards {
8914 let snapshot = this.buffer.read(cx).snapshot(cx);
8915
8916 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8917 s.move_cursors_with(|display_snapshot, display_point, _| {
8918 let mut point = display_point.to_point(display_snapshot);
8919 point.row += 1;
8920 point = snapshot.clip_point(point, Bias::Left);
8921 let display_point = point.to_display_point(display_snapshot);
8922 let goal = SelectionGoal::HorizontalPosition(
8923 display_snapshot
8924 .x_for_display_point(display_point, text_layout_details)
8925 .into(),
8926 );
8927 (display_point, goal)
8928 })
8929 });
8930 }
8931 });
8932 }
8933
8934 pub fn select_enclosing_symbol(
8935 &mut self,
8936 _: &SelectEnclosingSymbol,
8937 cx: &mut ViewContext<Self>,
8938 ) {
8939 let buffer = self.buffer.read(cx).snapshot(cx);
8940 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8941
8942 fn update_selection(
8943 selection: &Selection<usize>,
8944 buffer_snap: &MultiBufferSnapshot,
8945 ) -> Option<Selection<usize>> {
8946 let cursor = selection.head();
8947 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8948 for symbol in symbols.iter().rev() {
8949 let start = symbol.range.start.to_offset(buffer_snap);
8950 let end = symbol.range.end.to_offset(buffer_snap);
8951 let new_range = start..end;
8952 if start < selection.start || end > selection.end {
8953 return Some(Selection {
8954 id: selection.id,
8955 start: new_range.start,
8956 end: new_range.end,
8957 goal: SelectionGoal::None,
8958 reversed: selection.reversed,
8959 });
8960 }
8961 }
8962 None
8963 }
8964
8965 let mut selected_larger_symbol = false;
8966 let new_selections = old_selections
8967 .iter()
8968 .map(|selection| match update_selection(selection, &buffer) {
8969 Some(new_selection) => {
8970 if new_selection.range() != selection.range() {
8971 selected_larger_symbol = true;
8972 }
8973 new_selection
8974 }
8975 None => selection.clone(),
8976 })
8977 .collect::<Vec<_>>();
8978
8979 if selected_larger_symbol {
8980 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8981 s.select(new_selections);
8982 });
8983 }
8984 }
8985
8986 pub fn select_larger_syntax_node(
8987 &mut self,
8988 _: &SelectLargerSyntaxNode,
8989 cx: &mut ViewContext<Self>,
8990 ) {
8991 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8992 let buffer = self.buffer.read(cx).snapshot(cx);
8993 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8994
8995 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8996 let mut selected_larger_node = false;
8997 let new_selections = old_selections
8998 .iter()
8999 .map(|selection| {
9000 let old_range = selection.start..selection.end;
9001 let mut new_range = old_range.clone();
9002 while let Some(containing_range) =
9003 buffer.range_for_syntax_ancestor(new_range.clone())
9004 {
9005 new_range = containing_range;
9006 if !display_map.intersects_fold(new_range.start)
9007 && !display_map.intersects_fold(new_range.end)
9008 {
9009 break;
9010 }
9011 }
9012
9013 selected_larger_node |= new_range != old_range;
9014 Selection {
9015 id: selection.id,
9016 start: new_range.start,
9017 end: new_range.end,
9018 goal: SelectionGoal::None,
9019 reversed: selection.reversed,
9020 }
9021 })
9022 .collect::<Vec<_>>();
9023
9024 if selected_larger_node {
9025 stack.push(old_selections);
9026 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9027 s.select(new_selections);
9028 });
9029 }
9030 self.select_larger_syntax_node_stack = stack;
9031 }
9032
9033 pub fn select_smaller_syntax_node(
9034 &mut self,
9035 _: &SelectSmallerSyntaxNode,
9036 cx: &mut ViewContext<Self>,
9037 ) {
9038 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9039 if let Some(selections) = stack.pop() {
9040 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9041 s.select(selections.to_vec());
9042 });
9043 }
9044 self.select_larger_syntax_node_stack = stack;
9045 }
9046
9047 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9048 if !EditorSettings::get_global(cx).gutter.runnables {
9049 self.clear_tasks();
9050 return Task::ready(());
9051 }
9052 let project = self.project.clone();
9053 cx.spawn(|this, mut cx| async move {
9054 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9055 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9056 }) else {
9057 return;
9058 };
9059
9060 let Some(project) = project else {
9061 return;
9062 };
9063
9064 let hide_runnables = project
9065 .update(&mut cx, |project, cx| {
9066 // Do not display any test indicators in non-dev server remote projects.
9067 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9068 })
9069 .unwrap_or(true);
9070 if hide_runnables {
9071 return;
9072 }
9073 let new_rows =
9074 cx.background_executor()
9075 .spawn({
9076 let snapshot = display_snapshot.clone();
9077 async move {
9078 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9079 }
9080 })
9081 .await;
9082 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9083
9084 this.update(&mut cx, |this, _| {
9085 this.clear_tasks();
9086 for (key, value) in rows {
9087 this.insert_tasks(key, value);
9088 }
9089 })
9090 .ok();
9091 })
9092 }
9093 fn fetch_runnable_ranges(
9094 snapshot: &DisplaySnapshot,
9095 range: Range<Anchor>,
9096 ) -> Vec<language::RunnableRange> {
9097 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9098 }
9099
9100 fn runnable_rows(
9101 project: Model<Project>,
9102 snapshot: DisplaySnapshot,
9103 runnable_ranges: Vec<RunnableRange>,
9104 mut cx: AsyncWindowContext,
9105 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9106 runnable_ranges
9107 .into_iter()
9108 .filter_map(|mut runnable| {
9109 let tasks = cx
9110 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9111 .ok()?;
9112 if tasks.is_empty() {
9113 return None;
9114 }
9115
9116 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9117
9118 let row = snapshot
9119 .buffer_snapshot
9120 .buffer_line_for_row(MultiBufferRow(point.row))?
9121 .1
9122 .start
9123 .row;
9124
9125 let context_range =
9126 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9127 Some((
9128 (runnable.buffer_id, row),
9129 RunnableTasks {
9130 templates: tasks,
9131 offset: MultiBufferOffset(runnable.run_range.start),
9132 context_range,
9133 column: point.column,
9134 extra_variables: runnable.extra_captures,
9135 },
9136 ))
9137 })
9138 .collect()
9139 }
9140
9141 fn templates_with_tags(
9142 project: &Model<Project>,
9143 runnable: &mut Runnable,
9144 cx: &WindowContext<'_>,
9145 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9146 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9147 let (worktree_id, file) = project
9148 .buffer_for_id(runnable.buffer, cx)
9149 .and_then(|buffer| buffer.read(cx).file())
9150 .map(|file| (file.worktree_id(cx), file.clone()))
9151 .unzip();
9152
9153 (
9154 project.task_store().read(cx).task_inventory().cloned(),
9155 worktree_id,
9156 file,
9157 )
9158 });
9159
9160 let tags = mem::take(&mut runnable.tags);
9161 let mut tags: Vec<_> = tags
9162 .into_iter()
9163 .flat_map(|tag| {
9164 let tag = tag.0.clone();
9165 inventory
9166 .as_ref()
9167 .into_iter()
9168 .flat_map(|inventory| {
9169 inventory.read(cx).list_tasks(
9170 file.clone(),
9171 Some(runnable.language.clone()),
9172 worktree_id,
9173 cx,
9174 )
9175 })
9176 .filter(move |(_, template)| {
9177 template.tags.iter().any(|source_tag| source_tag == &tag)
9178 })
9179 })
9180 .sorted_by_key(|(kind, _)| kind.to_owned())
9181 .collect();
9182 if let Some((leading_tag_source, _)) = tags.first() {
9183 // Strongest source wins; if we have worktree tag binding, prefer that to
9184 // global and language bindings;
9185 // if we have a global binding, prefer that to language binding.
9186 let first_mismatch = tags
9187 .iter()
9188 .position(|(tag_source, _)| tag_source != leading_tag_source);
9189 if let Some(index) = first_mismatch {
9190 tags.truncate(index);
9191 }
9192 }
9193
9194 tags
9195 }
9196
9197 pub fn move_to_enclosing_bracket(
9198 &mut self,
9199 _: &MoveToEnclosingBracket,
9200 cx: &mut ViewContext<Self>,
9201 ) {
9202 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9203 s.move_offsets_with(|snapshot, selection| {
9204 let Some(enclosing_bracket_ranges) =
9205 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9206 else {
9207 return;
9208 };
9209
9210 let mut best_length = usize::MAX;
9211 let mut best_inside = false;
9212 let mut best_in_bracket_range = false;
9213 let mut best_destination = None;
9214 for (open, close) in enclosing_bracket_ranges {
9215 let close = close.to_inclusive();
9216 let length = close.end() - open.start;
9217 let inside = selection.start >= open.end && selection.end <= *close.start();
9218 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9219 || close.contains(&selection.head());
9220
9221 // If best is next to a bracket and current isn't, skip
9222 if !in_bracket_range && best_in_bracket_range {
9223 continue;
9224 }
9225
9226 // Prefer smaller lengths unless best is inside and current isn't
9227 if length > best_length && (best_inside || !inside) {
9228 continue;
9229 }
9230
9231 best_length = length;
9232 best_inside = inside;
9233 best_in_bracket_range = in_bracket_range;
9234 best_destination = Some(
9235 if close.contains(&selection.start) && close.contains(&selection.end) {
9236 if inside {
9237 open.end
9238 } else {
9239 open.start
9240 }
9241 } else if inside {
9242 *close.start()
9243 } else {
9244 *close.end()
9245 },
9246 );
9247 }
9248
9249 if let Some(destination) = best_destination {
9250 selection.collapse_to(destination, SelectionGoal::None);
9251 }
9252 })
9253 });
9254 }
9255
9256 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9257 self.end_selection(cx);
9258 self.selection_history.mode = SelectionHistoryMode::Undoing;
9259 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9260 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9261 self.select_next_state = entry.select_next_state;
9262 self.select_prev_state = entry.select_prev_state;
9263 self.add_selections_state = entry.add_selections_state;
9264 self.request_autoscroll(Autoscroll::newest(), cx);
9265 }
9266 self.selection_history.mode = SelectionHistoryMode::Normal;
9267 }
9268
9269 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9270 self.end_selection(cx);
9271 self.selection_history.mode = SelectionHistoryMode::Redoing;
9272 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9273 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9274 self.select_next_state = entry.select_next_state;
9275 self.select_prev_state = entry.select_prev_state;
9276 self.add_selections_state = entry.add_selections_state;
9277 self.request_autoscroll(Autoscroll::newest(), cx);
9278 }
9279 self.selection_history.mode = SelectionHistoryMode::Normal;
9280 }
9281
9282 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9283 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9284 }
9285
9286 pub fn expand_excerpts_down(
9287 &mut self,
9288 action: &ExpandExcerptsDown,
9289 cx: &mut ViewContext<Self>,
9290 ) {
9291 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9292 }
9293
9294 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9295 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9296 }
9297
9298 pub fn expand_excerpts_for_direction(
9299 &mut self,
9300 lines: u32,
9301 direction: ExpandExcerptDirection,
9302 cx: &mut ViewContext<Self>,
9303 ) {
9304 let selections = self.selections.disjoint_anchors();
9305
9306 let lines = if lines == 0 {
9307 EditorSettings::get_global(cx).expand_excerpt_lines
9308 } else {
9309 lines
9310 };
9311
9312 self.buffer.update(cx, |buffer, cx| {
9313 buffer.expand_excerpts(
9314 selections
9315 .iter()
9316 .map(|selection| selection.head().excerpt_id)
9317 .dedup(),
9318 lines,
9319 direction,
9320 cx,
9321 )
9322 })
9323 }
9324
9325 pub fn expand_excerpt(
9326 &mut self,
9327 excerpt: ExcerptId,
9328 direction: ExpandExcerptDirection,
9329 cx: &mut ViewContext<Self>,
9330 ) {
9331 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9332 self.buffer.update(cx, |buffer, cx| {
9333 buffer.expand_excerpts([excerpt], lines, direction, cx)
9334 })
9335 }
9336
9337 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9338 self.go_to_diagnostic_impl(Direction::Next, cx)
9339 }
9340
9341 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9342 self.go_to_diagnostic_impl(Direction::Prev, cx)
9343 }
9344
9345 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9346 let buffer = self.buffer.read(cx).snapshot(cx);
9347 let selection = self.selections.newest::<usize>(cx);
9348
9349 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9350 if direction == Direction::Next {
9351 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9352 let (group_id, jump_to) = popover.activation_info();
9353 if self.activate_diagnostics(group_id, cx) {
9354 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9355 let mut new_selection = s.newest_anchor().clone();
9356 new_selection.collapse_to(jump_to, SelectionGoal::None);
9357 s.select_anchors(vec![new_selection.clone()]);
9358 });
9359 }
9360 return;
9361 }
9362 }
9363
9364 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9365 active_diagnostics
9366 .primary_range
9367 .to_offset(&buffer)
9368 .to_inclusive()
9369 });
9370 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9371 if active_primary_range.contains(&selection.head()) {
9372 *active_primary_range.start()
9373 } else {
9374 selection.head()
9375 }
9376 } else {
9377 selection.head()
9378 };
9379 let snapshot = self.snapshot(cx);
9380 loop {
9381 let diagnostics = if direction == Direction::Prev {
9382 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9383 } else {
9384 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9385 }
9386 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9387 let group = diagnostics
9388 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9389 // be sorted in a stable way
9390 // skip until we are at current active diagnostic, if it exists
9391 .skip_while(|entry| {
9392 (match direction {
9393 Direction::Prev => entry.range.start >= search_start,
9394 Direction::Next => entry.range.start <= search_start,
9395 }) && self
9396 .active_diagnostics
9397 .as_ref()
9398 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9399 })
9400 .find_map(|entry| {
9401 if entry.diagnostic.is_primary
9402 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9403 && !entry.range.is_empty()
9404 // if we match with the active diagnostic, skip it
9405 && Some(entry.diagnostic.group_id)
9406 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9407 {
9408 Some((entry.range, entry.diagnostic.group_id))
9409 } else {
9410 None
9411 }
9412 });
9413
9414 if let Some((primary_range, group_id)) = group {
9415 if self.activate_diagnostics(group_id, cx) {
9416 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9417 s.select(vec![Selection {
9418 id: selection.id,
9419 start: primary_range.start,
9420 end: primary_range.start,
9421 reversed: false,
9422 goal: SelectionGoal::None,
9423 }]);
9424 });
9425 }
9426 break;
9427 } else {
9428 // Cycle around to the start of the buffer, potentially moving back to the start of
9429 // the currently active diagnostic.
9430 active_primary_range.take();
9431 if direction == Direction::Prev {
9432 if search_start == buffer.len() {
9433 break;
9434 } else {
9435 search_start = buffer.len();
9436 }
9437 } else if search_start == 0 {
9438 break;
9439 } else {
9440 search_start = 0;
9441 }
9442 }
9443 }
9444 }
9445
9446 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9447 let snapshot = self
9448 .display_map
9449 .update(cx, |display_map, cx| display_map.snapshot(cx));
9450 let selection = self.selections.newest::<Point>(cx);
9451 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9452 }
9453
9454 fn go_to_hunk_after_position(
9455 &mut self,
9456 snapshot: &DisplaySnapshot,
9457 position: Point,
9458 cx: &mut ViewContext<'_, Editor>,
9459 ) -> Option<MultiBufferDiffHunk> {
9460 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9461 snapshot,
9462 position,
9463 false,
9464 snapshot
9465 .buffer_snapshot
9466 .git_diff_hunks_in_range(MultiBufferRow(position.row + 1)..MultiBufferRow::MAX),
9467 cx,
9468 ) {
9469 return Some(hunk);
9470 }
9471
9472 let wrapped_point = Point::zero();
9473 self.go_to_next_hunk_in_direction(
9474 snapshot,
9475 wrapped_point,
9476 true,
9477 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9478 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9479 ),
9480 cx,
9481 )
9482 }
9483
9484 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9485 let snapshot = self
9486 .display_map
9487 .update(cx, |display_map, cx| display_map.snapshot(cx));
9488 let selection = self.selections.newest::<Point>(cx);
9489
9490 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9491 }
9492
9493 fn go_to_hunk_before_position(
9494 &mut self,
9495 snapshot: &DisplaySnapshot,
9496 position: Point,
9497 cx: &mut ViewContext<'_, Editor>,
9498 ) -> Option<MultiBufferDiffHunk> {
9499 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9500 snapshot,
9501 position,
9502 false,
9503 snapshot
9504 .buffer_snapshot
9505 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(position.row)),
9506 cx,
9507 ) {
9508 return Some(hunk);
9509 }
9510
9511 let wrapped_point = snapshot.buffer_snapshot.max_point();
9512 self.go_to_next_hunk_in_direction(
9513 snapshot,
9514 wrapped_point,
9515 true,
9516 snapshot
9517 .buffer_snapshot
9518 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(wrapped_point.row)),
9519 cx,
9520 )
9521 }
9522
9523 fn go_to_next_hunk_in_direction(
9524 &mut self,
9525 snapshot: &DisplaySnapshot,
9526 initial_point: Point,
9527 is_wrapped: bool,
9528 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9529 cx: &mut ViewContext<Editor>,
9530 ) -> Option<MultiBufferDiffHunk> {
9531 let display_point = initial_point.to_display_point(snapshot);
9532 let mut hunks = hunks
9533 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9534 .filter(|(display_hunk, _)| {
9535 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9536 })
9537 .dedup();
9538
9539 if let Some((display_hunk, hunk)) = hunks.next() {
9540 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9541 let row = display_hunk.start_display_row();
9542 let point = DisplayPoint::new(row, 0);
9543 s.select_display_ranges([point..point]);
9544 });
9545
9546 Some(hunk)
9547 } else {
9548 None
9549 }
9550 }
9551
9552 pub fn go_to_definition(
9553 &mut self,
9554 _: &GoToDefinition,
9555 cx: &mut ViewContext<Self>,
9556 ) -> Task<Result<Navigated>> {
9557 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9558 cx.spawn(|editor, mut cx| async move {
9559 if definition.await? == Navigated::Yes {
9560 return Ok(Navigated::Yes);
9561 }
9562 match editor.update(&mut cx, |editor, cx| {
9563 editor.find_all_references(&FindAllReferences, cx)
9564 })? {
9565 Some(references) => references.await,
9566 None => Ok(Navigated::No),
9567 }
9568 })
9569 }
9570
9571 pub fn go_to_declaration(
9572 &mut self,
9573 _: &GoToDeclaration,
9574 cx: &mut ViewContext<Self>,
9575 ) -> Task<Result<Navigated>> {
9576 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9577 }
9578
9579 pub fn go_to_declaration_split(
9580 &mut self,
9581 _: &GoToDeclaration,
9582 cx: &mut ViewContext<Self>,
9583 ) -> Task<Result<Navigated>> {
9584 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9585 }
9586
9587 pub fn go_to_implementation(
9588 &mut self,
9589 _: &GoToImplementation,
9590 cx: &mut ViewContext<Self>,
9591 ) -> Task<Result<Navigated>> {
9592 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9593 }
9594
9595 pub fn go_to_implementation_split(
9596 &mut self,
9597 _: &GoToImplementationSplit,
9598 cx: &mut ViewContext<Self>,
9599 ) -> Task<Result<Navigated>> {
9600 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9601 }
9602
9603 pub fn go_to_type_definition(
9604 &mut self,
9605 _: &GoToTypeDefinition,
9606 cx: &mut ViewContext<Self>,
9607 ) -> Task<Result<Navigated>> {
9608 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9609 }
9610
9611 pub fn go_to_definition_split(
9612 &mut self,
9613 _: &GoToDefinitionSplit,
9614 cx: &mut ViewContext<Self>,
9615 ) -> Task<Result<Navigated>> {
9616 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9617 }
9618
9619 pub fn go_to_type_definition_split(
9620 &mut self,
9621 _: &GoToTypeDefinitionSplit,
9622 cx: &mut ViewContext<Self>,
9623 ) -> Task<Result<Navigated>> {
9624 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9625 }
9626
9627 fn go_to_definition_of_kind(
9628 &mut self,
9629 kind: GotoDefinitionKind,
9630 split: bool,
9631 cx: &mut ViewContext<Self>,
9632 ) -> Task<Result<Navigated>> {
9633 let Some(provider) = self.semantics_provider.clone() else {
9634 return Task::ready(Ok(Navigated::No));
9635 };
9636 let buffer = self.buffer.read(cx);
9637 let head = self.selections.newest::<usize>(cx).head();
9638 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9639 text_anchor
9640 } else {
9641 return Task::ready(Ok(Navigated::No));
9642 };
9643
9644 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9645 return Task::ready(Ok(Navigated::No));
9646 };
9647
9648 cx.spawn(|editor, mut cx| async move {
9649 let definitions = definitions.await?;
9650 let navigated = editor
9651 .update(&mut cx, |editor, cx| {
9652 editor.navigate_to_hover_links(
9653 Some(kind),
9654 definitions
9655 .into_iter()
9656 .filter(|location| {
9657 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9658 })
9659 .map(HoverLink::Text)
9660 .collect::<Vec<_>>(),
9661 split,
9662 cx,
9663 )
9664 })?
9665 .await?;
9666 anyhow::Ok(navigated)
9667 })
9668 }
9669
9670 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9671 let position = self.selections.newest_anchor().head();
9672 let Some((buffer, buffer_position)) =
9673 self.buffer.read(cx).text_anchor_for_position(position, cx)
9674 else {
9675 return;
9676 };
9677
9678 cx.spawn(|editor, mut cx| async move {
9679 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9680 editor.update(&mut cx, |_, cx| {
9681 cx.open_url(&url);
9682 })
9683 } else {
9684 Ok(())
9685 }
9686 })
9687 .detach();
9688 }
9689
9690 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9691 let Some(workspace) = self.workspace() else {
9692 return;
9693 };
9694
9695 let position = self.selections.newest_anchor().head();
9696
9697 let Some((buffer, buffer_position)) =
9698 self.buffer.read(cx).text_anchor_for_position(position, cx)
9699 else {
9700 return;
9701 };
9702
9703 let project = self.project.clone();
9704
9705 cx.spawn(|_, mut cx| async move {
9706 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9707
9708 if let Some((_, path)) = result {
9709 workspace
9710 .update(&mut cx, |workspace, cx| {
9711 workspace.open_resolved_path(path, cx)
9712 })?
9713 .await?;
9714 }
9715 anyhow::Ok(())
9716 })
9717 .detach();
9718 }
9719
9720 pub(crate) fn navigate_to_hover_links(
9721 &mut self,
9722 kind: Option<GotoDefinitionKind>,
9723 mut definitions: Vec<HoverLink>,
9724 split: bool,
9725 cx: &mut ViewContext<Editor>,
9726 ) -> Task<Result<Navigated>> {
9727 // If there is one definition, just open it directly
9728 if definitions.len() == 1 {
9729 let definition = definitions.pop().unwrap();
9730
9731 enum TargetTaskResult {
9732 Location(Option<Location>),
9733 AlreadyNavigated,
9734 }
9735
9736 let target_task = match definition {
9737 HoverLink::Text(link) => {
9738 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9739 }
9740 HoverLink::InlayHint(lsp_location, server_id) => {
9741 let computation = self.compute_target_location(lsp_location, server_id, cx);
9742 cx.background_executor().spawn(async move {
9743 let location = computation.await?;
9744 Ok(TargetTaskResult::Location(location))
9745 })
9746 }
9747 HoverLink::Url(url) => {
9748 cx.open_url(&url);
9749 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9750 }
9751 HoverLink::File(path) => {
9752 if let Some(workspace) = self.workspace() {
9753 cx.spawn(|_, mut cx| async move {
9754 workspace
9755 .update(&mut cx, |workspace, cx| {
9756 workspace.open_resolved_path(path, cx)
9757 })?
9758 .await
9759 .map(|_| TargetTaskResult::AlreadyNavigated)
9760 })
9761 } else {
9762 Task::ready(Ok(TargetTaskResult::Location(None)))
9763 }
9764 }
9765 };
9766 cx.spawn(|editor, mut cx| async move {
9767 let target = match target_task.await.context("target resolution task")? {
9768 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9769 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9770 TargetTaskResult::Location(Some(target)) => target,
9771 };
9772
9773 editor.update(&mut cx, |editor, cx| {
9774 let Some(workspace) = editor.workspace() else {
9775 return Navigated::No;
9776 };
9777 let pane = workspace.read(cx).active_pane().clone();
9778
9779 let range = target.range.to_offset(target.buffer.read(cx));
9780 let range = editor.range_for_match(&range);
9781
9782 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9783 let buffer = target.buffer.read(cx);
9784 let range = check_multiline_range(buffer, range);
9785 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9786 s.select_ranges([range]);
9787 });
9788 } else {
9789 cx.window_context().defer(move |cx| {
9790 let target_editor: View<Self> =
9791 workspace.update(cx, |workspace, cx| {
9792 let pane = if split {
9793 workspace.adjacent_pane(cx)
9794 } else {
9795 workspace.active_pane().clone()
9796 };
9797
9798 workspace.open_project_item(
9799 pane,
9800 target.buffer.clone(),
9801 true,
9802 true,
9803 cx,
9804 )
9805 });
9806 target_editor.update(cx, |target_editor, cx| {
9807 // When selecting a definition in a different buffer, disable the nav history
9808 // to avoid creating a history entry at the previous cursor location.
9809 pane.update(cx, |pane, _| pane.disable_history());
9810 let buffer = target.buffer.read(cx);
9811 let range = check_multiline_range(buffer, range);
9812 target_editor.change_selections(
9813 Some(Autoscroll::focused()),
9814 cx,
9815 |s| {
9816 s.select_ranges([range]);
9817 },
9818 );
9819 pane.update(cx, |pane, _| pane.enable_history());
9820 });
9821 });
9822 }
9823 Navigated::Yes
9824 })
9825 })
9826 } else if !definitions.is_empty() {
9827 cx.spawn(|editor, mut cx| async move {
9828 let (title, location_tasks, workspace) = editor
9829 .update(&mut cx, |editor, cx| {
9830 let tab_kind = match kind {
9831 Some(GotoDefinitionKind::Implementation) => "Implementations",
9832 _ => "Definitions",
9833 };
9834 let title = definitions
9835 .iter()
9836 .find_map(|definition| match definition {
9837 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9838 let buffer = origin.buffer.read(cx);
9839 format!(
9840 "{} for {}",
9841 tab_kind,
9842 buffer
9843 .text_for_range(origin.range.clone())
9844 .collect::<String>()
9845 )
9846 }),
9847 HoverLink::InlayHint(_, _) => None,
9848 HoverLink::Url(_) => None,
9849 HoverLink::File(_) => None,
9850 })
9851 .unwrap_or(tab_kind.to_string());
9852 let location_tasks = definitions
9853 .into_iter()
9854 .map(|definition| match definition {
9855 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9856 HoverLink::InlayHint(lsp_location, server_id) => {
9857 editor.compute_target_location(lsp_location, server_id, cx)
9858 }
9859 HoverLink::Url(_) => Task::ready(Ok(None)),
9860 HoverLink::File(_) => Task::ready(Ok(None)),
9861 })
9862 .collect::<Vec<_>>();
9863 (title, location_tasks, editor.workspace().clone())
9864 })
9865 .context("location tasks preparation")?;
9866
9867 let locations = future::join_all(location_tasks)
9868 .await
9869 .into_iter()
9870 .filter_map(|location| location.transpose())
9871 .collect::<Result<_>>()
9872 .context("location tasks")?;
9873
9874 let Some(workspace) = workspace else {
9875 return Ok(Navigated::No);
9876 };
9877 let opened = workspace
9878 .update(&mut cx, |workspace, cx| {
9879 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9880 })
9881 .ok();
9882
9883 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9884 })
9885 } else {
9886 Task::ready(Ok(Navigated::No))
9887 }
9888 }
9889
9890 fn compute_target_location(
9891 &self,
9892 lsp_location: lsp::Location,
9893 server_id: LanguageServerId,
9894 cx: &mut ViewContext<Self>,
9895 ) -> Task<anyhow::Result<Option<Location>>> {
9896 let Some(project) = self.project.clone() else {
9897 return Task::Ready(Some(Ok(None)));
9898 };
9899
9900 cx.spawn(move |editor, mut cx| async move {
9901 let location_task = editor.update(&mut cx, |_, cx| {
9902 project.update(cx, |project, cx| {
9903 let language_server_name = project
9904 .language_server_statuses(cx)
9905 .find(|(id, _)| server_id == *id)
9906 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9907 language_server_name.map(|language_server_name| {
9908 project.open_local_buffer_via_lsp(
9909 lsp_location.uri.clone(),
9910 server_id,
9911 language_server_name,
9912 cx,
9913 )
9914 })
9915 })
9916 })?;
9917 let location = match location_task {
9918 Some(task) => Some({
9919 let target_buffer_handle = task.await.context("open local buffer")?;
9920 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9921 let target_start = target_buffer
9922 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9923 let target_end = target_buffer
9924 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9925 target_buffer.anchor_after(target_start)
9926 ..target_buffer.anchor_before(target_end)
9927 })?;
9928 Location {
9929 buffer: target_buffer_handle,
9930 range,
9931 }
9932 }),
9933 None => None,
9934 };
9935 Ok(location)
9936 })
9937 }
9938
9939 pub fn find_all_references(
9940 &mut self,
9941 _: &FindAllReferences,
9942 cx: &mut ViewContext<Self>,
9943 ) -> Option<Task<Result<Navigated>>> {
9944 let multi_buffer = self.buffer.read(cx);
9945 let selection = self.selections.newest::<usize>(cx);
9946 let head = selection.head();
9947
9948 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9949 let head_anchor = multi_buffer_snapshot.anchor_at(
9950 head,
9951 if head < selection.tail() {
9952 Bias::Right
9953 } else {
9954 Bias::Left
9955 },
9956 );
9957
9958 match self
9959 .find_all_references_task_sources
9960 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9961 {
9962 Ok(_) => {
9963 log::info!(
9964 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9965 );
9966 return None;
9967 }
9968 Err(i) => {
9969 self.find_all_references_task_sources.insert(i, head_anchor);
9970 }
9971 }
9972
9973 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9974 let workspace = self.workspace()?;
9975 let project = workspace.read(cx).project().clone();
9976 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9977 Some(cx.spawn(|editor, mut cx| async move {
9978 let _cleanup = defer({
9979 let mut cx = cx.clone();
9980 move || {
9981 let _ = editor.update(&mut cx, |editor, _| {
9982 if let Ok(i) =
9983 editor
9984 .find_all_references_task_sources
9985 .binary_search_by(|anchor| {
9986 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9987 })
9988 {
9989 editor.find_all_references_task_sources.remove(i);
9990 }
9991 });
9992 }
9993 });
9994
9995 let locations = references.await?;
9996 if locations.is_empty() {
9997 return anyhow::Ok(Navigated::No);
9998 }
9999
10000 workspace.update(&mut cx, |workspace, cx| {
10001 let title = locations
10002 .first()
10003 .as_ref()
10004 .map(|location| {
10005 let buffer = location.buffer.read(cx);
10006 format!(
10007 "References to `{}`",
10008 buffer
10009 .text_for_range(location.range.clone())
10010 .collect::<String>()
10011 )
10012 })
10013 .unwrap();
10014 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
10015 Navigated::Yes
10016 })
10017 }))
10018 }
10019
10020 /// Opens a multibuffer with the given project locations in it
10021 pub fn open_locations_in_multibuffer(
10022 workspace: &mut Workspace,
10023 mut locations: Vec<Location>,
10024 title: String,
10025 split: bool,
10026 cx: &mut ViewContext<Workspace>,
10027 ) {
10028 // If there are multiple definitions, open them in a multibuffer
10029 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10030 let mut locations = locations.into_iter().peekable();
10031 let mut ranges_to_highlight = Vec::new();
10032 let capability = workspace.project().read(cx).capability();
10033
10034 let excerpt_buffer = cx.new_model(|cx| {
10035 let mut multibuffer = MultiBuffer::new(capability);
10036 while let Some(location) = locations.next() {
10037 let buffer = location.buffer.read(cx);
10038 let mut ranges_for_buffer = Vec::new();
10039 let range = location.range.to_offset(buffer);
10040 ranges_for_buffer.push(range.clone());
10041
10042 while let Some(next_location) = locations.peek() {
10043 if next_location.buffer == location.buffer {
10044 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10045 locations.next();
10046 } else {
10047 break;
10048 }
10049 }
10050
10051 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10052 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10053 location.buffer.clone(),
10054 ranges_for_buffer,
10055 DEFAULT_MULTIBUFFER_CONTEXT,
10056 cx,
10057 ))
10058 }
10059
10060 multibuffer.with_title(title)
10061 });
10062
10063 let editor = cx.new_view(|cx| {
10064 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10065 });
10066 editor.update(cx, |editor, cx| {
10067 if let Some(first_range) = ranges_to_highlight.first() {
10068 editor.change_selections(None, cx, |selections| {
10069 selections.clear_disjoint();
10070 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10071 });
10072 }
10073 editor.highlight_background::<Self>(
10074 &ranges_to_highlight,
10075 |theme| theme.editor_highlighted_line_background,
10076 cx,
10077 );
10078 });
10079
10080 let item = Box::new(editor);
10081 let item_id = item.item_id();
10082
10083 if split {
10084 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10085 } else {
10086 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10087 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10088 pane.close_current_preview_item(cx)
10089 } else {
10090 None
10091 }
10092 });
10093 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10094 }
10095 workspace.active_pane().update(cx, |pane, cx| {
10096 pane.set_preview_item_id(Some(item_id), cx);
10097 });
10098 }
10099
10100 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10101 use language::ToOffset as _;
10102
10103 let provider = self.semantics_provider.clone()?;
10104 let selection = self.selections.newest_anchor().clone();
10105 let (cursor_buffer, cursor_buffer_position) = self
10106 .buffer
10107 .read(cx)
10108 .text_anchor_for_position(selection.head(), cx)?;
10109 let (tail_buffer, cursor_buffer_position_end) = self
10110 .buffer
10111 .read(cx)
10112 .text_anchor_for_position(selection.tail(), cx)?;
10113 if tail_buffer != cursor_buffer {
10114 return None;
10115 }
10116
10117 let snapshot = cursor_buffer.read(cx).snapshot();
10118 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10119 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10120 let prepare_rename = provider
10121 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10122 .unwrap_or_else(|| Task::ready(Ok(None)));
10123 drop(snapshot);
10124
10125 Some(cx.spawn(|this, mut cx| async move {
10126 let rename_range = if let Some(range) = prepare_rename.await? {
10127 Some(range)
10128 } else {
10129 this.update(&mut cx, |this, cx| {
10130 let buffer = this.buffer.read(cx).snapshot(cx);
10131 let mut buffer_highlights = this
10132 .document_highlights_for_position(selection.head(), &buffer)
10133 .filter(|highlight| {
10134 highlight.start.excerpt_id == selection.head().excerpt_id
10135 && highlight.end.excerpt_id == selection.head().excerpt_id
10136 });
10137 buffer_highlights
10138 .next()
10139 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10140 })?
10141 };
10142 if let Some(rename_range) = rename_range {
10143 this.update(&mut cx, |this, cx| {
10144 let snapshot = cursor_buffer.read(cx).snapshot();
10145 let rename_buffer_range = rename_range.to_offset(&snapshot);
10146 let cursor_offset_in_rename_range =
10147 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10148 let cursor_offset_in_rename_range_end =
10149 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10150
10151 this.take_rename(false, cx);
10152 let buffer = this.buffer.read(cx).read(cx);
10153 let cursor_offset = selection.head().to_offset(&buffer);
10154 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10155 let rename_end = rename_start + rename_buffer_range.len();
10156 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10157 let mut old_highlight_id = None;
10158 let old_name: Arc<str> = buffer
10159 .chunks(rename_start..rename_end, true)
10160 .map(|chunk| {
10161 if old_highlight_id.is_none() {
10162 old_highlight_id = chunk.syntax_highlight_id;
10163 }
10164 chunk.text
10165 })
10166 .collect::<String>()
10167 .into();
10168
10169 drop(buffer);
10170
10171 // Position the selection in the rename editor so that it matches the current selection.
10172 this.show_local_selections = false;
10173 let rename_editor = cx.new_view(|cx| {
10174 let mut editor = Editor::single_line(cx);
10175 editor.buffer.update(cx, |buffer, cx| {
10176 buffer.edit([(0..0, old_name.clone())], None, cx)
10177 });
10178 let rename_selection_range = match cursor_offset_in_rename_range
10179 .cmp(&cursor_offset_in_rename_range_end)
10180 {
10181 Ordering::Equal => {
10182 editor.select_all(&SelectAll, cx);
10183 return editor;
10184 }
10185 Ordering::Less => {
10186 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10187 }
10188 Ordering::Greater => {
10189 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10190 }
10191 };
10192 if rename_selection_range.end > old_name.len() {
10193 editor.select_all(&SelectAll, cx);
10194 } else {
10195 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10196 s.select_ranges([rename_selection_range]);
10197 });
10198 }
10199 editor
10200 });
10201 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10202 if e == &EditorEvent::Focused {
10203 cx.emit(EditorEvent::FocusedIn)
10204 }
10205 })
10206 .detach();
10207
10208 let write_highlights =
10209 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10210 let read_highlights =
10211 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10212 let ranges = write_highlights
10213 .iter()
10214 .flat_map(|(_, ranges)| ranges.iter())
10215 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10216 .cloned()
10217 .collect();
10218
10219 this.highlight_text::<Rename>(
10220 ranges,
10221 HighlightStyle {
10222 fade_out: Some(0.6),
10223 ..Default::default()
10224 },
10225 cx,
10226 );
10227 let rename_focus_handle = rename_editor.focus_handle(cx);
10228 cx.focus(&rename_focus_handle);
10229 let block_id = this.insert_blocks(
10230 [BlockProperties {
10231 style: BlockStyle::Flex,
10232 position: range.start,
10233 height: 1,
10234 render: Box::new({
10235 let rename_editor = rename_editor.clone();
10236 move |cx: &mut BlockContext| {
10237 let mut text_style = cx.editor_style.text.clone();
10238 if let Some(highlight_style) = old_highlight_id
10239 .and_then(|h| h.style(&cx.editor_style.syntax))
10240 {
10241 text_style = text_style.highlight(highlight_style);
10242 }
10243 div()
10244 .pl(cx.anchor_x)
10245 .child(EditorElement::new(
10246 &rename_editor,
10247 EditorStyle {
10248 background: cx.theme().system().transparent,
10249 local_player: cx.editor_style.local_player,
10250 text: text_style,
10251 scrollbar_width: cx.editor_style.scrollbar_width,
10252 syntax: cx.editor_style.syntax.clone(),
10253 status: cx.editor_style.status.clone(),
10254 inlay_hints_style: HighlightStyle {
10255 font_weight: Some(FontWeight::BOLD),
10256 ..make_inlay_hints_style(cx)
10257 },
10258 suggestions_style: HighlightStyle {
10259 color: Some(cx.theme().status().predictive),
10260 ..HighlightStyle::default()
10261 },
10262 ..EditorStyle::default()
10263 },
10264 ))
10265 .into_any_element()
10266 }
10267 }),
10268 disposition: BlockDisposition::Below,
10269 priority: 0,
10270 }],
10271 Some(Autoscroll::fit()),
10272 cx,
10273 )[0];
10274 this.pending_rename = Some(RenameState {
10275 range,
10276 old_name,
10277 editor: rename_editor,
10278 block_id,
10279 });
10280 })?;
10281 }
10282
10283 Ok(())
10284 }))
10285 }
10286
10287 pub fn confirm_rename(
10288 &mut self,
10289 _: &ConfirmRename,
10290 cx: &mut ViewContext<Self>,
10291 ) -> Option<Task<Result<()>>> {
10292 let rename = self.take_rename(false, cx)?;
10293 let workspace = self.workspace()?.downgrade();
10294 let (buffer, start) = self
10295 .buffer
10296 .read(cx)
10297 .text_anchor_for_position(rename.range.start, cx)?;
10298 let (end_buffer, _) = self
10299 .buffer
10300 .read(cx)
10301 .text_anchor_for_position(rename.range.end, cx)?;
10302 if buffer != end_buffer {
10303 return None;
10304 }
10305
10306 let old_name = rename.old_name;
10307 let new_name = rename.editor.read(cx).text(cx);
10308
10309 let rename = self.semantics_provider.as_ref()?.perform_rename(
10310 &buffer,
10311 start,
10312 new_name.clone(),
10313 cx,
10314 )?;
10315
10316 Some(cx.spawn(|editor, mut cx| async move {
10317 let project_transaction = rename.await?;
10318 Self::open_project_transaction(
10319 &editor,
10320 workspace,
10321 project_transaction,
10322 format!("Rename: {} → {}", old_name, new_name),
10323 cx.clone(),
10324 )
10325 .await?;
10326
10327 editor.update(&mut cx, |editor, cx| {
10328 editor.refresh_document_highlights(cx);
10329 })?;
10330 Ok(())
10331 }))
10332 }
10333
10334 fn take_rename(
10335 &mut self,
10336 moving_cursor: bool,
10337 cx: &mut ViewContext<Self>,
10338 ) -> Option<RenameState> {
10339 let rename = self.pending_rename.take()?;
10340 if rename.editor.focus_handle(cx).is_focused(cx) {
10341 cx.focus(&self.focus_handle);
10342 }
10343
10344 self.remove_blocks(
10345 [rename.block_id].into_iter().collect(),
10346 Some(Autoscroll::fit()),
10347 cx,
10348 );
10349 self.clear_highlights::<Rename>(cx);
10350 self.show_local_selections = true;
10351
10352 if moving_cursor {
10353 let rename_editor = rename.editor.read(cx);
10354 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
10355
10356 // Update the selection to match the position of the selection inside
10357 // the rename editor.
10358 let snapshot = self.buffer.read(cx).read(cx);
10359 let rename_range = rename.range.to_offset(&snapshot);
10360 let cursor_in_editor = snapshot
10361 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10362 .min(rename_range.end);
10363 drop(snapshot);
10364
10365 self.change_selections(None, cx, |s| {
10366 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10367 });
10368 } else {
10369 self.refresh_document_highlights(cx);
10370 }
10371
10372 Some(rename)
10373 }
10374
10375 pub fn pending_rename(&self) -> Option<&RenameState> {
10376 self.pending_rename.as_ref()
10377 }
10378
10379 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10380 let project = match &self.project {
10381 Some(project) => project.clone(),
10382 None => return None,
10383 };
10384
10385 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10386 }
10387
10388 fn format_selections(
10389 &mut self,
10390 _: &FormatSelections,
10391 cx: &mut ViewContext<Self>,
10392 ) -> Option<Task<Result<()>>> {
10393 let project = match &self.project {
10394 Some(project) => project.clone(),
10395 None => return None,
10396 };
10397
10398 let selections = self
10399 .selections
10400 .all_adjusted(cx)
10401 .into_iter()
10402 .filter(|s| !s.is_empty())
10403 .collect_vec();
10404
10405 Some(self.perform_format(
10406 project,
10407 FormatTrigger::Manual,
10408 FormatTarget::Ranges(selections),
10409 cx,
10410 ))
10411 }
10412
10413 fn perform_format(
10414 &mut self,
10415 project: Model<Project>,
10416 trigger: FormatTrigger,
10417 target: FormatTarget,
10418 cx: &mut ViewContext<Self>,
10419 ) -> Task<Result<()>> {
10420 let buffer = self.buffer().clone();
10421 let mut buffers = buffer.read(cx).all_buffers();
10422 if trigger == FormatTrigger::Save {
10423 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10424 }
10425
10426 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10427 let format = project.update(cx, |project, cx| {
10428 project.format(buffers, true, trigger, target, cx)
10429 });
10430
10431 cx.spawn(|_, mut cx| async move {
10432 let transaction = futures::select_biased! {
10433 () = timeout => {
10434 log::warn!("timed out waiting for formatting");
10435 None
10436 }
10437 transaction = format.log_err().fuse() => transaction,
10438 };
10439
10440 buffer
10441 .update(&mut cx, |buffer, cx| {
10442 if let Some(transaction) = transaction {
10443 if !buffer.is_singleton() {
10444 buffer.push_transaction(&transaction.0, cx);
10445 }
10446 }
10447
10448 cx.notify();
10449 })
10450 .ok();
10451
10452 Ok(())
10453 })
10454 }
10455
10456 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10457 if let Some(project) = self.project.clone() {
10458 self.buffer.update(cx, |multi_buffer, cx| {
10459 project.update(cx, |project, cx| {
10460 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10461 });
10462 })
10463 }
10464 }
10465
10466 fn cancel_language_server_work(
10467 &mut self,
10468 _: &CancelLanguageServerWork,
10469 cx: &mut ViewContext<Self>,
10470 ) {
10471 if let Some(project) = self.project.clone() {
10472 self.buffer.update(cx, |multi_buffer, cx| {
10473 project.update(cx, |project, cx| {
10474 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10475 });
10476 })
10477 }
10478 }
10479
10480 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10481 cx.show_character_palette();
10482 }
10483
10484 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10485 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10486 let buffer = self.buffer.read(cx).snapshot(cx);
10487 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10488 let is_valid = buffer
10489 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10490 .any(|entry| {
10491 entry.diagnostic.is_primary
10492 && !entry.range.is_empty()
10493 && entry.range.start == primary_range_start
10494 && entry.diagnostic.message == active_diagnostics.primary_message
10495 });
10496
10497 if is_valid != active_diagnostics.is_valid {
10498 active_diagnostics.is_valid = is_valid;
10499 let mut new_styles = HashMap::default();
10500 for (block_id, diagnostic) in &active_diagnostics.blocks {
10501 new_styles.insert(
10502 *block_id,
10503 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10504 );
10505 }
10506 self.display_map.update(cx, |display_map, _cx| {
10507 display_map.replace_blocks(new_styles)
10508 });
10509 }
10510 }
10511 }
10512
10513 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10514 self.dismiss_diagnostics(cx);
10515 let snapshot = self.snapshot(cx);
10516 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10517 let buffer = self.buffer.read(cx).snapshot(cx);
10518
10519 let mut primary_range = None;
10520 let mut primary_message = None;
10521 let mut group_end = Point::zero();
10522 let diagnostic_group = buffer
10523 .diagnostic_group::<MultiBufferPoint>(group_id)
10524 .filter_map(|entry| {
10525 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10526 && (entry.range.start.row == entry.range.end.row
10527 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10528 {
10529 return None;
10530 }
10531 if entry.range.end > group_end {
10532 group_end = entry.range.end;
10533 }
10534 if entry.diagnostic.is_primary {
10535 primary_range = Some(entry.range.clone());
10536 primary_message = Some(entry.diagnostic.message.clone());
10537 }
10538 Some(entry)
10539 })
10540 .collect::<Vec<_>>();
10541 let primary_range = primary_range?;
10542 let primary_message = primary_message?;
10543 let primary_range =
10544 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10545
10546 let blocks = display_map
10547 .insert_blocks(
10548 diagnostic_group.iter().map(|entry| {
10549 let diagnostic = entry.diagnostic.clone();
10550 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10551 BlockProperties {
10552 style: BlockStyle::Fixed,
10553 position: buffer.anchor_after(entry.range.start),
10554 height: message_height,
10555 render: diagnostic_block_renderer(diagnostic, None, true, true),
10556 disposition: BlockDisposition::Below,
10557 priority: 0,
10558 }
10559 }),
10560 cx,
10561 )
10562 .into_iter()
10563 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10564 .collect();
10565
10566 Some(ActiveDiagnosticGroup {
10567 primary_range,
10568 primary_message,
10569 group_id,
10570 blocks,
10571 is_valid: true,
10572 })
10573 });
10574 self.active_diagnostics.is_some()
10575 }
10576
10577 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10578 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10579 self.display_map.update(cx, |display_map, cx| {
10580 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10581 });
10582 cx.notify();
10583 }
10584 }
10585
10586 pub fn set_selections_from_remote(
10587 &mut self,
10588 selections: Vec<Selection<Anchor>>,
10589 pending_selection: Option<Selection<Anchor>>,
10590 cx: &mut ViewContext<Self>,
10591 ) {
10592 let old_cursor_position = self.selections.newest_anchor().head();
10593 self.selections.change_with(cx, |s| {
10594 s.select_anchors(selections);
10595 if let Some(pending_selection) = pending_selection {
10596 s.set_pending(pending_selection, SelectMode::Character);
10597 } else {
10598 s.clear_pending();
10599 }
10600 });
10601 self.selections_did_change(false, &old_cursor_position, true, cx);
10602 }
10603
10604 fn push_to_selection_history(&mut self) {
10605 self.selection_history.push(SelectionHistoryEntry {
10606 selections: self.selections.disjoint_anchors(),
10607 select_next_state: self.select_next_state.clone(),
10608 select_prev_state: self.select_prev_state.clone(),
10609 add_selections_state: self.add_selections_state.clone(),
10610 });
10611 }
10612
10613 pub fn transact(
10614 &mut self,
10615 cx: &mut ViewContext<Self>,
10616 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10617 ) -> Option<TransactionId> {
10618 self.start_transaction_at(Instant::now(), cx);
10619 update(self, cx);
10620 self.end_transaction_at(Instant::now(), cx)
10621 }
10622
10623 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10624 self.end_selection(cx);
10625 if let Some(tx_id) = self
10626 .buffer
10627 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10628 {
10629 self.selection_history
10630 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10631 cx.emit(EditorEvent::TransactionBegun {
10632 transaction_id: tx_id,
10633 })
10634 }
10635 }
10636
10637 fn end_transaction_at(
10638 &mut self,
10639 now: Instant,
10640 cx: &mut ViewContext<Self>,
10641 ) -> Option<TransactionId> {
10642 if let Some(transaction_id) = self
10643 .buffer
10644 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10645 {
10646 if let Some((_, end_selections)) =
10647 self.selection_history.transaction_mut(transaction_id)
10648 {
10649 *end_selections = Some(self.selections.disjoint_anchors());
10650 } else {
10651 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10652 }
10653
10654 cx.emit(EditorEvent::Edited { transaction_id });
10655 Some(transaction_id)
10656 } else {
10657 None
10658 }
10659 }
10660
10661 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10662 let selection = self.selections.newest::<Point>(cx);
10663
10664 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10665 let range = if selection.is_empty() {
10666 let point = selection.head().to_display_point(&display_map);
10667 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10668 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10669 .to_point(&display_map);
10670 start..end
10671 } else {
10672 selection.range()
10673 };
10674 if display_map.folds_in_range(range).next().is_some() {
10675 self.unfold_lines(&Default::default(), cx)
10676 } else {
10677 self.fold(&Default::default(), cx)
10678 }
10679 }
10680
10681 pub fn toggle_fold_recursive(
10682 &mut self,
10683 _: &actions::ToggleFoldRecursive,
10684 cx: &mut ViewContext<Self>,
10685 ) {
10686 let selection = self.selections.newest::<Point>(cx);
10687
10688 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10689 let range = if selection.is_empty() {
10690 let point = selection.head().to_display_point(&display_map);
10691 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10692 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10693 .to_point(&display_map);
10694 start..end
10695 } else {
10696 selection.range()
10697 };
10698 if display_map.folds_in_range(range).next().is_some() {
10699 self.unfold_recursive(&Default::default(), cx)
10700 } else {
10701 self.fold_recursive(&Default::default(), cx)
10702 }
10703 }
10704
10705 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10706 let mut fold_ranges = Vec::new();
10707 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10708 let selections = self.selections.all_adjusted(cx);
10709
10710 for selection in selections {
10711 let range = selection.range().sorted();
10712 let buffer_start_row = range.start.row;
10713
10714 if range.start.row != range.end.row {
10715 let mut found = false;
10716 let mut row = range.start.row;
10717 while row <= range.end.row {
10718 if let Some((foldable_range, fold_text)) =
10719 { display_map.foldable_range(MultiBufferRow(row)) }
10720 {
10721 found = true;
10722 row = foldable_range.end.row + 1;
10723 fold_ranges.push((foldable_range, fold_text));
10724 } else {
10725 row += 1
10726 }
10727 }
10728 if found {
10729 continue;
10730 }
10731 }
10732
10733 for row in (0..=range.start.row).rev() {
10734 if let Some((foldable_range, fold_text)) =
10735 display_map.foldable_range(MultiBufferRow(row))
10736 {
10737 if foldable_range.end.row >= buffer_start_row {
10738 fold_ranges.push((foldable_range, fold_text));
10739 if row <= range.start.row {
10740 break;
10741 }
10742 }
10743 }
10744 }
10745 }
10746
10747 self.fold_ranges(fold_ranges, true, cx);
10748 }
10749
10750 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10751 let mut fold_ranges = Vec::new();
10752 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10753
10754 for row in 0..display_map.max_buffer_row().0 {
10755 if let Some((foldable_range, fold_text)) =
10756 display_map.foldable_range(MultiBufferRow(row))
10757 {
10758 fold_ranges.push((foldable_range, fold_text));
10759 }
10760 }
10761
10762 self.fold_ranges(fold_ranges, true, cx);
10763 }
10764
10765 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10766 let mut fold_ranges = Vec::new();
10767 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10768 let selections = self.selections.all_adjusted(cx);
10769
10770 for selection in selections {
10771 let range = selection.range().sorted();
10772 let buffer_start_row = range.start.row;
10773
10774 if range.start.row != range.end.row {
10775 let mut found = false;
10776 for row in range.start.row..=range.end.row {
10777 if let Some((foldable_range, fold_text)) =
10778 { display_map.foldable_range(MultiBufferRow(row)) }
10779 {
10780 found = true;
10781 fold_ranges.push((foldable_range, fold_text));
10782 }
10783 }
10784 if found {
10785 continue;
10786 }
10787 }
10788
10789 for row in (0..=range.start.row).rev() {
10790 if let Some((foldable_range, fold_text)) =
10791 display_map.foldable_range(MultiBufferRow(row))
10792 {
10793 if foldable_range.end.row >= buffer_start_row {
10794 fold_ranges.push((foldable_range, fold_text));
10795 } else {
10796 break;
10797 }
10798 }
10799 }
10800 }
10801
10802 self.fold_ranges(fold_ranges, true, cx);
10803 }
10804
10805 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10806 let buffer_row = fold_at.buffer_row;
10807 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10808
10809 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
10810 let autoscroll = self
10811 .selections
10812 .all::<Point>(cx)
10813 .iter()
10814 .any(|selection| fold_range.overlaps(&selection.range()));
10815
10816 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
10817 }
10818 }
10819
10820 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10821 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10822 let buffer = &display_map.buffer_snapshot;
10823 let selections = self.selections.all::<Point>(cx);
10824 let ranges = selections
10825 .iter()
10826 .map(|s| {
10827 let range = s.display_range(&display_map).sorted();
10828 let mut start = range.start.to_point(&display_map);
10829 let mut end = range.end.to_point(&display_map);
10830 start.column = 0;
10831 end.column = buffer.line_len(MultiBufferRow(end.row));
10832 start..end
10833 })
10834 .collect::<Vec<_>>();
10835
10836 self.unfold_ranges(ranges, true, true, cx);
10837 }
10838
10839 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10840 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10841 let selections = self.selections.all::<Point>(cx);
10842 let ranges = selections
10843 .iter()
10844 .map(|s| {
10845 let mut range = s.display_range(&display_map).sorted();
10846 *range.start.column_mut() = 0;
10847 *range.end.column_mut() = display_map.line_len(range.end.row());
10848 let start = range.start.to_point(&display_map);
10849 let end = range.end.to_point(&display_map);
10850 start..end
10851 })
10852 .collect::<Vec<_>>();
10853
10854 self.unfold_ranges(ranges, true, true, cx);
10855 }
10856
10857 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10858 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10859
10860 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10861 ..Point::new(
10862 unfold_at.buffer_row.0,
10863 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10864 );
10865
10866 let autoscroll = self
10867 .selections
10868 .all::<Point>(cx)
10869 .iter()
10870 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10871
10872 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
10873 }
10874
10875 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10876 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10877 self.unfold_ranges(
10878 [Point::zero()..display_map.max_point().to_point(&display_map)],
10879 true,
10880 true,
10881 cx,
10882 );
10883 }
10884
10885 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10886 let selections = self.selections.all::<Point>(cx);
10887 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10888 let line_mode = self.selections.line_mode;
10889 let ranges = selections.into_iter().map(|s| {
10890 if line_mode {
10891 let start = Point::new(s.start.row, 0);
10892 let end = Point::new(
10893 s.end.row,
10894 display_map
10895 .buffer_snapshot
10896 .line_len(MultiBufferRow(s.end.row)),
10897 );
10898 (start..end, display_map.fold_placeholder.clone())
10899 } else {
10900 (s.start..s.end, display_map.fold_placeholder.clone())
10901 }
10902 });
10903 self.fold_ranges(ranges, true, cx);
10904 }
10905
10906 pub fn fold_ranges<T: ToOffset + Clone>(
10907 &mut self,
10908 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
10909 auto_scroll: bool,
10910 cx: &mut ViewContext<Self>,
10911 ) {
10912 let mut fold_ranges = Vec::new();
10913 let mut buffers_affected = HashMap::default();
10914 let multi_buffer = self.buffer().read(cx);
10915 for (fold_range, fold_text) in ranges {
10916 if let Some((_, buffer, _)) =
10917 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
10918 {
10919 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10920 };
10921 fold_ranges.push((fold_range, fold_text));
10922 }
10923
10924 let mut ranges = fold_ranges.into_iter().peekable();
10925 if ranges.peek().is_some() {
10926 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
10927
10928 if auto_scroll {
10929 self.request_autoscroll(Autoscroll::fit(), cx);
10930 }
10931
10932 for buffer in buffers_affected.into_values() {
10933 self.sync_expanded_diff_hunks(buffer, cx);
10934 }
10935
10936 cx.notify();
10937
10938 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10939 // Clear diagnostics block when folding a range that contains it.
10940 let snapshot = self.snapshot(cx);
10941 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10942 drop(snapshot);
10943 self.active_diagnostics = Some(active_diagnostics);
10944 self.dismiss_diagnostics(cx);
10945 } else {
10946 self.active_diagnostics = Some(active_diagnostics);
10947 }
10948 }
10949
10950 self.scrollbar_marker_state.dirty = true;
10951 }
10952 }
10953
10954 pub fn unfold_ranges<T: ToOffset + Clone>(
10955 &mut self,
10956 ranges: impl IntoIterator<Item = Range<T>>,
10957 inclusive: bool,
10958 auto_scroll: bool,
10959 cx: &mut ViewContext<Self>,
10960 ) {
10961 let mut unfold_ranges = Vec::new();
10962 let mut buffers_affected = HashMap::default();
10963 let multi_buffer = self.buffer().read(cx);
10964 for range in ranges {
10965 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10966 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10967 };
10968 unfold_ranges.push(range);
10969 }
10970
10971 let mut ranges = unfold_ranges.into_iter().peekable();
10972 if ranges.peek().is_some() {
10973 self.display_map
10974 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
10975 if auto_scroll {
10976 self.request_autoscroll(Autoscroll::fit(), cx);
10977 }
10978
10979 for buffer in buffers_affected.into_values() {
10980 self.sync_expanded_diff_hunks(buffer, cx);
10981 }
10982
10983 cx.notify();
10984 self.scrollbar_marker_state.dirty = true;
10985 self.active_indent_guides_state.dirty = true;
10986 }
10987 }
10988
10989 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
10990 self.display_map.read(cx).fold_placeholder.clone()
10991 }
10992
10993 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10994 if hovered != self.gutter_hovered {
10995 self.gutter_hovered = hovered;
10996 cx.notify();
10997 }
10998 }
10999
11000 pub fn insert_blocks(
11001 &mut self,
11002 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11003 autoscroll: Option<Autoscroll>,
11004 cx: &mut ViewContext<Self>,
11005 ) -> Vec<CustomBlockId> {
11006 let blocks = self
11007 .display_map
11008 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11009 if let Some(autoscroll) = autoscroll {
11010 self.request_autoscroll(autoscroll, cx);
11011 }
11012 cx.notify();
11013 blocks
11014 }
11015
11016 pub fn resize_blocks(
11017 &mut self,
11018 heights: HashMap<CustomBlockId, u32>,
11019 autoscroll: Option<Autoscroll>,
11020 cx: &mut ViewContext<Self>,
11021 ) {
11022 self.display_map
11023 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11024 if let Some(autoscroll) = autoscroll {
11025 self.request_autoscroll(autoscroll, cx);
11026 }
11027 cx.notify();
11028 }
11029
11030 pub fn replace_blocks(
11031 &mut self,
11032 renderers: HashMap<CustomBlockId, RenderBlock>,
11033 autoscroll: Option<Autoscroll>,
11034 cx: &mut ViewContext<Self>,
11035 ) {
11036 self.display_map
11037 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11038 if let Some(autoscroll) = autoscroll {
11039 self.request_autoscroll(autoscroll, cx);
11040 }
11041 cx.notify();
11042 }
11043
11044 pub fn remove_blocks(
11045 &mut self,
11046 block_ids: HashSet<CustomBlockId>,
11047 autoscroll: Option<Autoscroll>,
11048 cx: &mut ViewContext<Self>,
11049 ) {
11050 self.display_map.update(cx, |display_map, cx| {
11051 display_map.remove_blocks(block_ids, cx)
11052 });
11053 if let Some(autoscroll) = autoscroll {
11054 self.request_autoscroll(autoscroll, cx);
11055 }
11056 cx.notify();
11057 }
11058
11059 pub fn row_for_block(
11060 &self,
11061 block_id: CustomBlockId,
11062 cx: &mut ViewContext<Self>,
11063 ) -> Option<DisplayRow> {
11064 self.display_map
11065 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11066 }
11067
11068 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11069 self.focused_block = Some(focused_block);
11070 }
11071
11072 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11073 self.focused_block.take()
11074 }
11075
11076 pub fn insert_creases(
11077 &mut self,
11078 creases: impl IntoIterator<Item = Crease>,
11079 cx: &mut ViewContext<Self>,
11080 ) -> Vec<CreaseId> {
11081 self.display_map
11082 .update(cx, |map, cx| map.insert_creases(creases, cx))
11083 }
11084
11085 pub fn remove_creases(
11086 &mut self,
11087 ids: impl IntoIterator<Item = CreaseId>,
11088 cx: &mut ViewContext<Self>,
11089 ) {
11090 self.display_map
11091 .update(cx, |map, cx| map.remove_creases(ids, cx));
11092 }
11093
11094 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11095 self.display_map
11096 .update(cx, |map, cx| map.snapshot(cx))
11097 .longest_row()
11098 }
11099
11100 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11101 self.display_map
11102 .update(cx, |map, cx| map.snapshot(cx))
11103 .max_point()
11104 }
11105
11106 pub fn text(&self, cx: &AppContext) -> String {
11107 self.buffer.read(cx).read(cx).text()
11108 }
11109
11110 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11111 let text = self.text(cx);
11112 let text = text.trim();
11113
11114 if text.is_empty() {
11115 return None;
11116 }
11117
11118 Some(text.to_string())
11119 }
11120
11121 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11122 self.transact(cx, |this, cx| {
11123 this.buffer
11124 .read(cx)
11125 .as_singleton()
11126 .expect("you can only call set_text on editors for singleton buffers")
11127 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11128 });
11129 }
11130
11131 pub fn display_text(&self, cx: &mut AppContext) -> String {
11132 self.display_map
11133 .update(cx, |map, cx| map.snapshot(cx))
11134 .text()
11135 }
11136
11137 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11138 let mut wrap_guides = smallvec::smallvec![];
11139
11140 if self.show_wrap_guides == Some(false) {
11141 return wrap_guides;
11142 }
11143
11144 let settings = self.buffer.read(cx).settings_at(0, cx);
11145 if settings.show_wrap_guides {
11146 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11147 wrap_guides.push((soft_wrap as usize, true));
11148 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11149 wrap_guides.push((soft_wrap as usize, true));
11150 }
11151 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11152 }
11153
11154 wrap_guides
11155 }
11156
11157 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11158 let settings = self.buffer.read(cx).settings_at(0, cx);
11159 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11160 match mode {
11161 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11162 SoftWrap::None
11163 }
11164 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11165 language_settings::SoftWrap::PreferredLineLength => {
11166 SoftWrap::Column(settings.preferred_line_length)
11167 }
11168 language_settings::SoftWrap::Bounded => {
11169 SoftWrap::Bounded(settings.preferred_line_length)
11170 }
11171 }
11172 }
11173
11174 pub fn set_soft_wrap_mode(
11175 &mut self,
11176 mode: language_settings::SoftWrap,
11177 cx: &mut ViewContext<Self>,
11178 ) {
11179 self.soft_wrap_mode_override = Some(mode);
11180 cx.notify();
11181 }
11182
11183 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11184 let rem_size = cx.rem_size();
11185 self.display_map.update(cx, |map, cx| {
11186 map.set_font(
11187 style.text.font(),
11188 style.text.font_size.to_pixels(rem_size),
11189 cx,
11190 )
11191 });
11192 self.style = Some(style);
11193 }
11194
11195 pub fn style(&self) -> Option<&EditorStyle> {
11196 self.style.as_ref()
11197 }
11198
11199 // Called by the element. This method is not designed to be called outside of the editor
11200 // element's layout code because it does not notify when rewrapping is computed synchronously.
11201 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11202 self.display_map
11203 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11204 }
11205
11206 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11207 if self.soft_wrap_mode_override.is_some() {
11208 self.soft_wrap_mode_override.take();
11209 } else {
11210 let soft_wrap = match self.soft_wrap_mode(cx) {
11211 SoftWrap::GitDiff => return,
11212 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11213 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11214 language_settings::SoftWrap::None
11215 }
11216 };
11217 self.soft_wrap_mode_override = Some(soft_wrap);
11218 }
11219 cx.notify();
11220 }
11221
11222 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11223 let Some(workspace) = self.workspace() else {
11224 return;
11225 };
11226 let fs = workspace.read(cx).app_state().fs.clone();
11227 let current_show = TabBarSettings::get_global(cx).show;
11228 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11229 setting.show = Some(!current_show);
11230 });
11231 }
11232
11233 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11234 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11235 self.buffer
11236 .read(cx)
11237 .settings_at(0, cx)
11238 .indent_guides
11239 .enabled
11240 });
11241 self.show_indent_guides = Some(!currently_enabled);
11242 cx.notify();
11243 }
11244
11245 fn should_show_indent_guides(&self) -> Option<bool> {
11246 self.show_indent_guides
11247 }
11248
11249 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11250 let mut editor_settings = EditorSettings::get_global(cx).clone();
11251 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11252 EditorSettings::override_global(editor_settings, cx);
11253 }
11254
11255 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11256 self.use_relative_line_numbers
11257 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11258 }
11259
11260 pub fn toggle_relative_line_numbers(
11261 &mut self,
11262 _: &ToggleRelativeLineNumbers,
11263 cx: &mut ViewContext<Self>,
11264 ) {
11265 let is_relative = self.should_use_relative_line_numbers(cx);
11266 self.set_relative_line_number(Some(!is_relative), cx)
11267 }
11268
11269 pub fn set_relative_line_number(
11270 &mut self,
11271 is_relative: Option<bool>,
11272 cx: &mut ViewContext<Self>,
11273 ) {
11274 self.use_relative_line_numbers = is_relative;
11275 cx.notify();
11276 }
11277
11278 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11279 self.show_gutter = show_gutter;
11280 cx.notify();
11281 }
11282
11283 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11284 self.show_line_numbers = Some(show_line_numbers);
11285 cx.notify();
11286 }
11287
11288 pub fn set_show_git_diff_gutter(
11289 &mut self,
11290 show_git_diff_gutter: bool,
11291 cx: &mut ViewContext<Self>,
11292 ) {
11293 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11294 cx.notify();
11295 }
11296
11297 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11298 self.show_code_actions = Some(show_code_actions);
11299 cx.notify();
11300 }
11301
11302 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11303 self.show_runnables = Some(show_runnables);
11304 cx.notify();
11305 }
11306
11307 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11308 if self.display_map.read(cx).masked != masked {
11309 self.display_map.update(cx, |map, _| map.masked = masked);
11310 }
11311 cx.notify()
11312 }
11313
11314 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11315 self.show_wrap_guides = Some(show_wrap_guides);
11316 cx.notify();
11317 }
11318
11319 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11320 self.show_indent_guides = Some(show_indent_guides);
11321 cx.notify();
11322 }
11323
11324 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11325 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11326 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11327 if let Some(dir) = file.abs_path(cx).parent() {
11328 return Some(dir.to_owned());
11329 }
11330 }
11331
11332 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11333 return Some(project_path.path.to_path_buf());
11334 }
11335 }
11336
11337 None
11338 }
11339
11340 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11341 self.active_excerpt(cx)?
11342 .1
11343 .read(cx)
11344 .file()
11345 .and_then(|f| f.as_local())
11346 }
11347
11348 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11349 if let Some(target) = self.target_file(cx) {
11350 cx.reveal_path(&target.abs_path(cx));
11351 }
11352 }
11353
11354 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11355 if let Some(file) = self.target_file(cx) {
11356 if let Some(path) = file.abs_path(cx).to_str() {
11357 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11358 }
11359 }
11360 }
11361
11362 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11363 if let Some(file) = self.target_file(cx) {
11364 if let Some(path) = file.path().to_str() {
11365 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11366 }
11367 }
11368 }
11369
11370 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11371 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11372
11373 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11374 self.start_git_blame(true, cx);
11375 }
11376
11377 cx.notify();
11378 }
11379
11380 pub fn toggle_git_blame_inline(
11381 &mut self,
11382 _: &ToggleGitBlameInline,
11383 cx: &mut ViewContext<Self>,
11384 ) {
11385 self.toggle_git_blame_inline_internal(true, cx);
11386 cx.notify();
11387 }
11388
11389 pub fn git_blame_inline_enabled(&self) -> bool {
11390 self.git_blame_inline_enabled
11391 }
11392
11393 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11394 self.show_selection_menu = self
11395 .show_selection_menu
11396 .map(|show_selections_menu| !show_selections_menu)
11397 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11398
11399 cx.notify();
11400 }
11401
11402 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11403 self.show_selection_menu
11404 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11405 }
11406
11407 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11408 if let Some(project) = self.project.as_ref() {
11409 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11410 return;
11411 };
11412
11413 if buffer.read(cx).file().is_none() {
11414 return;
11415 }
11416
11417 let focused = self.focus_handle(cx).contains_focused(cx);
11418
11419 let project = project.clone();
11420 let blame =
11421 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11422 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11423 self.blame = Some(blame);
11424 }
11425 }
11426
11427 fn toggle_git_blame_inline_internal(
11428 &mut self,
11429 user_triggered: bool,
11430 cx: &mut ViewContext<Self>,
11431 ) {
11432 if self.git_blame_inline_enabled {
11433 self.git_blame_inline_enabled = false;
11434 self.show_git_blame_inline = false;
11435 self.show_git_blame_inline_delay_task.take();
11436 } else {
11437 self.git_blame_inline_enabled = true;
11438 self.start_git_blame_inline(user_triggered, cx);
11439 }
11440
11441 cx.notify();
11442 }
11443
11444 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11445 self.start_git_blame(user_triggered, cx);
11446
11447 if ProjectSettings::get_global(cx)
11448 .git
11449 .inline_blame_delay()
11450 .is_some()
11451 {
11452 self.start_inline_blame_timer(cx);
11453 } else {
11454 self.show_git_blame_inline = true
11455 }
11456 }
11457
11458 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11459 self.blame.as_ref()
11460 }
11461
11462 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11463 self.show_git_blame_gutter && self.has_blame_entries(cx)
11464 }
11465
11466 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11467 self.show_git_blame_inline
11468 && self.focus_handle.is_focused(cx)
11469 && !self.newest_selection_head_on_empty_line(cx)
11470 && self.has_blame_entries(cx)
11471 }
11472
11473 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11474 self.blame()
11475 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11476 }
11477
11478 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11479 let cursor_anchor = self.selections.newest_anchor().head();
11480
11481 let snapshot = self.buffer.read(cx).snapshot(cx);
11482 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11483
11484 snapshot.line_len(buffer_row) == 0
11485 }
11486
11487 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11488 let buffer_and_selection = maybe!({
11489 let selection = self.selections.newest::<Point>(cx);
11490 let selection_range = selection.range();
11491
11492 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11493 (buffer, selection_range.start.row..selection_range.end.row)
11494 } else {
11495 let buffer_ranges = self
11496 .buffer()
11497 .read(cx)
11498 .range_to_buffer_ranges(selection_range, cx);
11499
11500 let (buffer, range, _) = if selection.reversed {
11501 buffer_ranges.first()
11502 } else {
11503 buffer_ranges.last()
11504 }?;
11505
11506 let snapshot = buffer.read(cx).snapshot();
11507 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11508 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11509 (buffer.clone(), selection)
11510 };
11511
11512 Some((buffer, selection))
11513 });
11514
11515 let Some((buffer, selection)) = buffer_and_selection else {
11516 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11517 };
11518
11519 let Some(project) = self.project.as_ref() else {
11520 return Task::ready(Err(anyhow!("editor does not have project")));
11521 };
11522
11523 project.update(cx, |project, cx| {
11524 project.get_permalink_to_line(&buffer, selection, cx)
11525 })
11526 }
11527
11528 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11529 let permalink_task = self.get_permalink_to_line(cx);
11530 let workspace = self.workspace();
11531
11532 cx.spawn(|_, mut cx| async move {
11533 match permalink_task.await {
11534 Ok(permalink) => {
11535 cx.update(|cx| {
11536 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11537 })
11538 .ok();
11539 }
11540 Err(err) => {
11541 let message = format!("Failed to copy permalink: {err}");
11542
11543 Err::<(), anyhow::Error>(err).log_err();
11544
11545 if let Some(workspace) = workspace {
11546 workspace
11547 .update(&mut cx, |workspace, cx| {
11548 struct CopyPermalinkToLine;
11549
11550 workspace.show_toast(
11551 Toast::new(
11552 NotificationId::unique::<CopyPermalinkToLine>(),
11553 message,
11554 ),
11555 cx,
11556 )
11557 })
11558 .ok();
11559 }
11560 }
11561 }
11562 })
11563 .detach();
11564 }
11565
11566 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11567 if let Some(file) = self.target_file(cx) {
11568 if let Some(path) = file.path().to_str() {
11569 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11570 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11571 }
11572 }
11573 }
11574
11575 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11576 let permalink_task = self.get_permalink_to_line(cx);
11577 let workspace = self.workspace();
11578
11579 cx.spawn(|_, mut cx| async move {
11580 match permalink_task.await {
11581 Ok(permalink) => {
11582 cx.update(|cx| {
11583 cx.open_url(permalink.as_ref());
11584 })
11585 .ok();
11586 }
11587 Err(err) => {
11588 let message = format!("Failed to open permalink: {err}");
11589
11590 Err::<(), anyhow::Error>(err).log_err();
11591
11592 if let Some(workspace) = workspace {
11593 workspace
11594 .update(&mut cx, |workspace, cx| {
11595 struct OpenPermalinkToLine;
11596
11597 workspace.show_toast(
11598 Toast::new(
11599 NotificationId::unique::<OpenPermalinkToLine>(),
11600 message,
11601 ),
11602 cx,
11603 )
11604 })
11605 .ok();
11606 }
11607 }
11608 }
11609 })
11610 .detach();
11611 }
11612
11613 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11614 /// last highlight added will be used.
11615 ///
11616 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11617 pub fn highlight_rows<T: 'static>(
11618 &mut self,
11619 range: Range<Anchor>,
11620 color: Hsla,
11621 should_autoscroll: bool,
11622 cx: &mut ViewContext<Self>,
11623 ) {
11624 let snapshot = self.buffer().read(cx).snapshot(cx);
11625 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11626 let ix = row_highlights.binary_search_by(|highlight| {
11627 Ordering::Equal
11628 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11629 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11630 });
11631
11632 if let Err(mut ix) = ix {
11633 let index = post_inc(&mut self.highlight_order);
11634
11635 // If this range intersects with the preceding highlight, then merge it with
11636 // the preceding highlight. Otherwise insert a new highlight.
11637 let mut merged = false;
11638 if ix > 0 {
11639 let prev_highlight = &mut row_highlights[ix - 1];
11640 if prev_highlight
11641 .range
11642 .end
11643 .cmp(&range.start, &snapshot)
11644 .is_ge()
11645 {
11646 ix -= 1;
11647 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11648 prev_highlight.range.end = range.end;
11649 }
11650 merged = true;
11651 prev_highlight.index = index;
11652 prev_highlight.color = color;
11653 prev_highlight.should_autoscroll = should_autoscroll;
11654 }
11655 }
11656
11657 if !merged {
11658 row_highlights.insert(
11659 ix,
11660 RowHighlight {
11661 range: range.clone(),
11662 index,
11663 color,
11664 should_autoscroll,
11665 },
11666 );
11667 }
11668
11669 // If any of the following highlights intersect with this one, merge them.
11670 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11671 let highlight = &row_highlights[ix];
11672 if next_highlight
11673 .range
11674 .start
11675 .cmp(&highlight.range.end, &snapshot)
11676 .is_le()
11677 {
11678 if next_highlight
11679 .range
11680 .end
11681 .cmp(&highlight.range.end, &snapshot)
11682 .is_gt()
11683 {
11684 row_highlights[ix].range.end = next_highlight.range.end;
11685 }
11686 row_highlights.remove(ix + 1);
11687 } else {
11688 break;
11689 }
11690 }
11691 }
11692 }
11693
11694 /// Remove any highlighted row ranges of the given type that intersect the
11695 /// given ranges.
11696 pub fn remove_highlighted_rows<T: 'static>(
11697 &mut self,
11698 ranges_to_remove: Vec<Range<Anchor>>,
11699 cx: &mut ViewContext<Self>,
11700 ) {
11701 let snapshot = self.buffer().read(cx).snapshot(cx);
11702 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11703 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11704 row_highlights.retain(|highlight| {
11705 while let Some(range_to_remove) = ranges_to_remove.peek() {
11706 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11707 Ordering::Less | Ordering::Equal => {
11708 ranges_to_remove.next();
11709 }
11710 Ordering::Greater => {
11711 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11712 Ordering::Less | Ordering::Equal => {
11713 return false;
11714 }
11715 Ordering::Greater => break,
11716 }
11717 }
11718 }
11719 }
11720
11721 true
11722 })
11723 }
11724
11725 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11726 pub fn clear_row_highlights<T: 'static>(&mut self) {
11727 self.highlighted_rows.remove(&TypeId::of::<T>());
11728 }
11729
11730 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11731 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11732 self.highlighted_rows
11733 .get(&TypeId::of::<T>())
11734 .map_or(&[] as &[_], |vec| vec.as_slice())
11735 .iter()
11736 .map(|highlight| (highlight.range.clone(), highlight.color))
11737 }
11738
11739 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11740 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11741 /// Allows to ignore certain kinds of highlights.
11742 pub fn highlighted_display_rows(
11743 &mut self,
11744 cx: &mut WindowContext,
11745 ) -> BTreeMap<DisplayRow, Hsla> {
11746 let snapshot = self.snapshot(cx);
11747 let mut used_highlight_orders = HashMap::default();
11748 self.highlighted_rows
11749 .iter()
11750 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11751 .fold(
11752 BTreeMap::<DisplayRow, Hsla>::new(),
11753 |mut unique_rows, highlight| {
11754 let start = highlight.range.start.to_display_point(&snapshot);
11755 let end = highlight.range.end.to_display_point(&snapshot);
11756 let start_row = start.row().0;
11757 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11758 && end.column() == 0
11759 {
11760 end.row().0.saturating_sub(1)
11761 } else {
11762 end.row().0
11763 };
11764 for row in start_row..=end_row {
11765 let used_index =
11766 used_highlight_orders.entry(row).or_insert(highlight.index);
11767 if highlight.index >= *used_index {
11768 *used_index = highlight.index;
11769 unique_rows.insert(DisplayRow(row), highlight.color);
11770 }
11771 }
11772 unique_rows
11773 },
11774 )
11775 }
11776
11777 pub fn highlighted_display_row_for_autoscroll(
11778 &self,
11779 snapshot: &DisplaySnapshot,
11780 ) -> Option<DisplayRow> {
11781 self.highlighted_rows
11782 .values()
11783 .flat_map(|highlighted_rows| highlighted_rows.iter())
11784 .filter_map(|highlight| {
11785 if highlight.should_autoscroll {
11786 Some(highlight.range.start.to_display_point(snapshot).row())
11787 } else {
11788 None
11789 }
11790 })
11791 .min()
11792 }
11793
11794 pub fn set_search_within_ranges(
11795 &mut self,
11796 ranges: &[Range<Anchor>],
11797 cx: &mut ViewContext<Self>,
11798 ) {
11799 self.highlight_background::<SearchWithinRange>(
11800 ranges,
11801 |colors| colors.editor_document_highlight_read_background,
11802 cx,
11803 )
11804 }
11805
11806 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11807 self.breadcrumb_header = Some(new_header);
11808 }
11809
11810 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11811 self.clear_background_highlights::<SearchWithinRange>(cx);
11812 }
11813
11814 pub fn highlight_background<T: 'static>(
11815 &mut self,
11816 ranges: &[Range<Anchor>],
11817 color_fetcher: fn(&ThemeColors) -> Hsla,
11818 cx: &mut ViewContext<Self>,
11819 ) {
11820 self.background_highlights
11821 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11822 self.scrollbar_marker_state.dirty = true;
11823 cx.notify();
11824 }
11825
11826 pub fn clear_background_highlights<T: 'static>(
11827 &mut self,
11828 cx: &mut ViewContext<Self>,
11829 ) -> Option<BackgroundHighlight> {
11830 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11831 if !text_highlights.1.is_empty() {
11832 self.scrollbar_marker_state.dirty = true;
11833 cx.notify();
11834 }
11835 Some(text_highlights)
11836 }
11837
11838 pub fn highlight_gutter<T: 'static>(
11839 &mut self,
11840 ranges: &[Range<Anchor>],
11841 color_fetcher: fn(&AppContext) -> Hsla,
11842 cx: &mut ViewContext<Self>,
11843 ) {
11844 self.gutter_highlights
11845 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11846 cx.notify();
11847 }
11848
11849 pub fn clear_gutter_highlights<T: 'static>(
11850 &mut self,
11851 cx: &mut ViewContext<Self>,
11852 ) -> Option<GutterHighlight> {
11853 cx.notify();
11854 self.gutter_highlights.remove(&TypeId::of::<T>())
11855 }
11856
11857 #[cfg(feature = "test-support")]
11858 pub fn all_text_background_highlights(
11859 &mut self,
11860 cx: &mut ViewContext<Self>,
11861 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11862 let snapshot = self.snapshot(cx);
11863 let buffer = &snapshot.buffer_snapshot;
11864 let start = buffer.anchor_before(0);
11865 let end = buffer.anchor_after(buffer.len());
11866 let theme = cx.theme().colors();
11867 self.background_highlights_in_range(start..end, &snapshot, theme)
11868 }
11869
11870 #[cfg(feature = "test-support")]
11871 pub fn search_background_highlights(
11872 &mut self,
11873 cx: &mut ViewContext<Self>,
11874 ) -> Vec<Range<Point>> {
11875 let snapshot = self.buffer().read(cx).snapshot(cx);
11876
11877 let highlights = self
11878 .background_highlights
11879 .get(&TypeId::of::<items::BufferSearchHighlights>());
11880
11881 if let Some((_color, ranges)) = highlights {
11882 ranges
11883 .iter()
11884 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11885 .collect_vec()
11886 } else {
11887 vec![]
11888 }
11889 }
11890
11891 fn document_highlights_for_position<'a>(
11892 &'a self,
11893 position: Anchor,
11894 buffer: &'a MultiBufferSnapshot,
11895 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11896 let read_highlights = self
11897 .background_highlights
11898 .get(&TypeId::of::<DocumentHighlightRead>())
11899 .map(|h| &h.1);
11900 let write_highlights = self
11901 .background_highlights
11902 .get(&TypeId::of::<DocumentHighlightWrite>())
11903 .map(|h| &h.1);
11904 let left_position = position.bias_left(buffer);
11905 let right_position = position.bias_right(buffer);
11906 read_highlights
11907 .into_iter()
11908 .chain(write_highlights)
11909 .flat_map(move |ranges| {
11910 let start_ix = match ranges.binary_search_by(|probe| {
11911 let cmp = probe.end.cmp(&left_position, buffer);
11912 if cmp.is_ge() {
11913 Ordering::Greater
11914 } else {
11915 Ordering::Less
11916 }
11917 }) {
11918 Ok(i) | Err(i) => i,
11919 };
11920
11921 ranges[start_ix..]
11922 .iter()
11923 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11924 })
11925 }
11926
11927 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11928 self.background_highlights
11929 .get(&TypeId::of::<T>())
11930 .map_or(false, |(_, highlights)| !highlights.is_empty())
11931 }
11932
11933 pub fn background_highlights_in_range(
11934 &self,
11935 search_range: Range<Anchor>,
11936 display_snapshot: &DisplaySnapshot,
11937 theme: &ThemeColors,
11938 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11939 let mut results = Vec::new();
11940 for (color_fetcher, ranges) in self.background_highlights.values() {
11941 let color = color_fetcher(theme);
11942 let start_ix = match ranges.binary_search_by(|probe| {
11943 let cmp = probe
11944 .end
11945 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11946 if cmp.is_gt() {
11947 Ordering::Greater
11948 } else {
11949 Ordering::Less
11950 }
11951 }) {
11952 Ok(i) | Err(i) => i,
11953 };
11954 for range in &ranges[start_ix..] {
11955 if range
11956 .start
11957 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11958 .is_ge()
11959 {
11960 break;
11961 }
11962
11963 let start = range.start.to_display_point(display_snapshot);
11964 let end = range.end.to_display_point(display_snapshot);
11965 results.push((start..end, color))
11966 }
11967 }
11968 results
11969 }
11970
11971 pub fn background_highlight_row_ranges<T: 'static>(
11972 &self,
11973 search_range: Range<Anchor>,
11974 display_snapshot: &DisplaySnapshot,
11975 count: usize,
11976 ) -> Vec<RangeInclusive<DisplayPoint>> {
11977 let mut results = Vec::new();
11978 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
11979 return vec![];
11980 };
11981
11982 let start_ix = match ranges.binary_search_by(|probe| {
11983 let cmp = probe
11984 .end
11985 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11986 if cmp.is_gt() {
11987 Ordering::Greater
11988 } else {
11989 Ordering::Less
11990 }
11991 }) {
11992 Ok(i) | Err(i) => i,
11993 };
11994 let mut push_region = |start: Option<Point>, end: Option<Point>| {
11995 if let (Some(start_display), Some(end_display)) = (start, end) {
11996 results.push(
11997 start_display.to_display_point(display_snapshot)
11998 ..=end_display.to_display_point(display_snapshot),
11999 );
12000 }
12001 };
12002 let mut start_row: Option<Point> = None;
12003 let mut end_row: Option<Point> = None;
12004 if ranges.len() > count {
12005 return Vec::new();
12006 }
12007 for range in &ranges[start_ix..] {
12008 if range
12009 .start
12010 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12011 .is_ge()
12012 {
12013 break;
12014 }
12015 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12016 if let Some(current_row) = &end_row {
12017 if end.row == current_row.row {
12018 continue;
12019 }
12020 }
12021 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12022 if start_row.is_none() {
12023 assert_eq!(end_row, None);
12024 start_row = Some(start);
12025 end_row = Some(end);
12026 continue;
12027 }
12028 if let Some(current_end) = end_row.as_mut() {
12029 if start.row > current_end.row + 1 {
12030 push_region(start_row, end_row);
12031 start_row = Some(start);
12032 end_row = Some(end);
12033 } else {
12034 // Merge two hunks.
12035 *current_end = end;
12036 }
12037 } else {
12038 unreachable!();
12039 }
12040 }
12041 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12042 push_region(start_row, end_row);
12043 results
12044 }
12045
12046 pub fn gutter_highlights_in_range(
12047 &self,
12048 search_range: Range<Anchor>,
12049 display_snapshot: &DisplaySnapshot,
12050 cx: &AppContext,
12051 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12052 let mut results = Vec::new();
12053 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12054 let color = color_fetcher(cx);
12055 let start_ix = match ranges.binary_search_by(|probe| {
12056 let cmp = probe
12057 .end
12058 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12059 if cmp.is_gt() {
12060 Ordering::Greater
12061 } else {
12062 Ordering::Less
12063 }
12064 }) {
12065 Ok(i) | Err(i) => i,
12066 };
12067 for range in &ranges[start_ix..] {
12068 if range
12069 .start
12070 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12071 .is_ge()
12072 {
12073 break;
12074 }
12075
12076 let start = range.start.to_display_point(display_snapshot);
12077 let end = range.end.to_display_point(display_snapshot);
12078 results.push((start..end, color))
12079 }
12080 }
12081 results
12082 }
12083
12084 /// Get the text ranges corresponding to the redaction query
12085 pub fn redacted_ranges(
12086 &self,
12087 search_range: Range<Anchor>,
12088 display_snapshot: &DisplaySnapshot,
12089 cx: &WindowContext,
12090 ) -> Vec<Range<DisplayPoint>> {
12091 display_snapshot
12092 .buffer_snapshot
12093 .redacted_ranges(search_range, |file| {
12094 if let Some(file) = file {
12095 file.is_private()
12096 && EditorSettings::get(
12097 Some(SettingsLocation {
12098 worktree_id: file.worktree_id(cx),
12099 path: file.path().as_ref(),
12100 }),
12101 cx,
12102 )
12103 .redact_private_values
12104 } else {
12105 false
12106 }
12107 })
12108 .map(|range| {
12109 range.start.to_display_point(display_snapshot)
12110 ..range.end.to_display_point(display_snapshot)
12111 })
12112 .collect()
12113 }
12114
12115 pub fn highlight_text<T: 'static>(
12116 &mut self,
12117 ranges: Vec<Range<Anchor>>,
12118 style: HighlightStyle,
12119 cx: &mut ViewContext<Self>,
12120 ) {
12121 self.display_map.update(cx, |map, _| {
12122 map.highlight_text(TypeId::of::<T>(), ranges, style)
12123 });
12124 cx.notify();
12125 }
12126
12127 pub(crate) fn highlight_inlays<T: 'static>(
12128 &mut self,
12129 highlights: Vec<InlayHighlight>,
12130 style: HighlightStyle,
12131 cx: &mut ViewContext<Self>,
12132 ) {
12133 self.display_map.update(cx, |map, _| {
12134 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12135 });
12136 cx.notify();
12137 }
12138
12139 pub fn text_highlights<'a, T: 'static>(
12140 &'a self,
12141 cx: &'a AppContext,
12142 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12143 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12144 }
12145
12146 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12147 let cleared = self
12148 .display_map
12149 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12150 if cleared {
12151 cx.notify();
12152 }
12153 }
12154
12155 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12156 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12157 && self.focus_handle.is_focused(cx)
12158 }
12159
12160 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12161 self.show_cursor_when_unfocused = is_enabled;
12162 cx.notify();
12163 }
12164
12165 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12166 cx.notify();
12167 }
12168
12169 fn on_buffer_event(
12170 &mut self,
12171 multibuffer: Model<MultiBuffer>,
12172 event: &multi_buffer::Event,
12173 cx: &mut ViewContext<Self>,
12174 ) {
12175 match event {
12176 multi_buffer::Event::Edited {
12177 singleton_buffer_edited,
12178 } => {
12179 self.scrollbar_marker_state.dirty = true;
12180 self.active_indent_guides_state.dirty = true;
12181 self.refresh_active_diagnostics(cx);
12182 self.refresh_code_actions(cx);
12183 if self.has_active_inline_completion(cx) {
12184 self.update_visible_inline_completion(cx);
12185 }
12186 cx.emit(EditorEvent::BufferEdited);
12187 cx.emit(SearchEvent::MatchesInvalidated);
12188 if *singleton_buffer_edited {
12189 if let Some(project) = &self.project {
12190 let project = project.read(cx);
12191 #[allow(clippy::mutable_key_type)]
12192 let languages_affected = multibuffer
12193 .read(cx)
12194 .all_buffers()
12195 .into_iter()
12196 .filter_map(|buffer| {
12197 let buffer = buffer.read(cx);
12198 let language = buffer.language()?;
12199 if project.is_local()
12200 && project.language_servers_for_buffer(buffer, cx).count() == 0
12201 {
12202 None
12203 } else {
12204 Some(language)
12205 }
12206 })
12207 .cloned()
12208 .collect::<HashSet<_>>();
12209 if !languages_affected.is_empty() {
12210 self.refresh_inlay_hints(
12211 InlayHintRefreshReason::BufferEdited(languages_affected),
12212 cx,
12213 );
12214 }
12215 }
12216 }
12217
12218 let Some(project) = &self.project else { return };
12219 let (telemetry, is_via_ssh) = {
12220 let project = project.read(cx);
12221 let telemetry = project.client().telemetry().clone();
12222 let is_via_ssh = project.is_via_ssh();
12223 (telemetry, is_via_ssh)
12224 };
12225 refresh_linked_ranges(self, cx);
12226 telemetry.log_edit_event("editor", is_via_ssh);
12227 }
12228 multi_buffer::Event::ExcerptsAdded {
12229 buffer,
12230 predecessor,
12231 excerpts,
12232 } => {
12233 self.tasks_update_task = Some(self.refresh_runnables(cx));
12234 cx.emit(EditorEvent::ExcerptsAdded {
12235 buffer: buffer.clone(),
12236 predecessor: *predecessor,
12237 excerpts: excerpts.clone(),
12238 });
12239 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12240 }
12241 multi_buffer::Event::ExcerptsRemoved { ids } => {
12242 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12243 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12244 }
12245 multi_buffer::Event::ExcerptsEdited { ids } => {
12246 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12247 }
12248 multi_buffer::Event::ExcerptsExpanded { ids } => {
12249 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12250 }
12251 multi_buffer::Event::Reparsed(buffer_id) => {
12252 self.tasks_update_task = Some(self.refresh_runnables(cx));
12253
12254 cx.emit(EditorEvent::Reparsed(*buffer_id));
12255 }
12256 multi_buffer::Event::LanguageChanged(buffer_id) => {
12257 linked_editing_ranges::refresh_linked_ranges(self, cx);
12258 cx.emit(EditorEvent::Reparsed(*buffer_id));
12259 cx.notify();
12260 }
12261 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12262 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12263 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12264 cx.emit(EditorEvent::TitleChanged)
12265 }
12266 multi_buffer::Event::DiffBaseChanged => {
12267 self.scrollbar_marker_state.dirty = true;
12268 cx.emit(EditorEvent::DiffBaseChanged);
12269 cx.notify();
12270 }
12271 multi_buffer::Event::DiffUpdated { buffer } => {
12272 self.sync_expanded_diff_hunks(buffer.clone(), cx);
12273 cx.notify();
12274 }
12275 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12276 multi_buffer::Event::DiagnosticsUpdated => {
12277 self.refresh_active_diagnostics(cx);
12278 self.scrollbar_marker_state.dirty = true;
12279 cx.notify();
12280 }
12281 _ => {}
12282 };
12283 }
12284
12285 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12286 cx.notify();
12287 }
12288
12289 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12290 self.tasks_update_task = Some(self.refresh_runnables(cx));
12291 self.refresh_inline_completion(true, false, cx);
12292 self.refresh_inlay_hints(
12293 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12294 self.selections.newest_anchor().head(),
12295 &self.buffer.read(cx).snapshot(cx),
12296 cx,
12297 )),
12298 cx,
12299 );
12300
12301 let old_cursor_shape = self.cursor_shape;
12302
12303 {
12304 let editor_settings = EditorSettings::get_global(cx);
12305 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12306 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12307 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12308 }
12309
12310 if old_cursor_shape != self.cursor_shape {
12311 cx.emit(EditorEvent::CursorShapeChanged);
12312 }
12313
12314 let project_settings = ProjectSettings::get_global(cx);
12315 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12316
12317 if self.mode == EditorMode::Full {
12318 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12319 if self.git_blame_inline_enabled != inline_blame_enabled {
12320 self.toggle_git_blame_inline_internal(false, cx);
12321 }
12322 }
12323
12324 cx.notify();
12325 }
12326
12327 pub fn set_searchable(&mut self, searchable: bool) {
12328 self.searchable = searchable;
12329 }
12330
12331 pub fn searchable(&self) -> bool {
12332 self.searchable
12333 }
12334
12335 fn open_proposed_changes_editor(
12336 &mut self,
12337 _: &OpenProposedChangesEditor,
12338 cx: &mut ViewContext<Self>,
12339 ) {
12340 let Some(workspace) = self.workspace() else {
12341 cx.propagate();
12342 return;
12343 };
12344
12345 let buffer = self.buffer.read(cx);
12346 let mut new_selections_by_buffer = HashMap::default();
12347 for selection in self.selections.all::<usize>(cx) {
12348 for (buffer, range, _) in
12349 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12350 {
12351 let mut range = range.to_point(buffer.read(cx));
12352 range.start.column = 0;
12353 range.end.column = buffer.read(cx).line_len(range.end.row);
12354 new_selections_by_buffer
12355 .entry(buffer)
12356 .or_insert(Vec::new())
12357 .push(range)
12358 }
12359 }
12360
12361 let proposed_changes_buffers = new_selections_by_buffer
12362 .into_iter()
12363 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12364 .collect::<Vec<_>>();
12365 let proposed_changes_editor = cx.new_view(|cx| {
12366 ProposedChangesEditor::new(
12367 "Proposed changes",
12368 proposed_changes_buffers,
12369 self.project.clone(),
12370 cx,
12371 )
12372 });
12373
12374 cx.window_context().defer(move |cx| {
12375 workspace.update(cx, |workspace, cx| {
12376 workspace.active_pane().update(cx, |pane, cx| {
12377 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12378 });
12379 });
12380 });
12381 }
12382
12383 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12384 self.open_excerpts_common(true, cx)
12385 }
12386
12387 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12388 self.open_excerpts_common(false, cx)
12389 }
12390
12391 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
12392 let buffer = self.buffer.read(cx);
12393 if buffer.is_singleton() {
12394 cx.propagate();
12395 return;
12396 }
12397
12398 let Some(workspace) = self.workspace() else {
12399 cx.propagate();
12400 return;
12401 };
12402
12403 let mut new_selections_by_buffer = HashMap::default();
12404 for selection in self.selections.all::<usize>(cx) {
12405 for (mut buffer_handle, mut range, _) in
12406 buffer.range_to_buffer_ranges(selection.range(), cx)
12407 {
12408 // When editing branch buffers, jump to the corresponding location
12409 // in their base buffer.
12410 let buffer = buffer_handle.read(cx);
12411 if let Some(base_buffer) = buffer.diff_base_buffer() {
12412 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12413 buffer_handle = base_buffer;
12414 }
12415
12416 if selection.reversed {
12417 mem::swap(&mut range.start, &mut range.end);
12418 }
12419 new_selections_by_buffer
12420 .entry(buffer_handle)
12421 .or_insert(Vec::new())
12422 .push(range)
12423 }
12424 }
12425
12426 // We defer the pane interaction because we ourselves are a workspace item
12427 // and activating a new item causes the pane to call a method on us reentrantly,
12428 // which panics if we're on the stack.
12429 cx.window_context().defer(move |cx| {
12430 workspace.update(cx, |workspace, cx| {
12431 let pane = if split {
12432 workspace.adjacent_pane(cx)
12433 } else {
12434 workspace.active_pane().clone()
12435 };
12436
12437 for (buffer, ranges) in new_selections_by_buffer {
12438 let editor =
12439 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
12440 editor.update(cx, |editor, cx| {
12441 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
12442 s.select_ranges(ranges);
12443 });
12444 });
12445 }
12446 })
12447 });
12448 }
12449
12450 fn jump(
12451 &mut self,
12452 path: ProjectPath,
12453 position: Point,
12454 anchor: language::Anchor,
12455 offset_from_top: u32,
12456 cx: &mut ViewContext<Self>,
12457 ) {
12458 let workspace = self.workspace();
12459 cx.spawn(|_, mut cx| async move {
12460 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
12461 let editor = workspace.update(&mut cx, |workspace, cx| {
12462 // Reset the preview item id before opening the new item
12463 workspace.active_pane().update(cx, |pane, cx| {
12464 pane.set_preview_item_id(None, cx);
12465 });
12466 workspace.open_path_preview(path, None, true, true, cx)
12467 })?;
12468 let editor = editor
12469 .await?
12470 .downcast::<Editor>()
12471 .ok_or_else(|| anyhow!("opened item was not an editor"))?
12472 .downgrade();
12473 editor.update(&mut cx, |editor, cx| {
12474 let buffer = editor
12475 .buffer()
12476 .read(cx)
12477 .as_singleton()
12478 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
12479 let buffer = buffer.read(cx);
12480 let cursor = if buffer.can_resolve(&anchor) {
12481 language::ToPoint::to_point(&anchor, buffer)
12482 } else {
12483 buffer.clip_point(position, Bias::Left)
12484 };
12485
12486 let nav_history = editor.nav_history.take();
12487 editor.change_selections(
12488 Some(Autoscroll::top_relative(offset_from_top as usize)),
12489 cx,
12490 |s| {
12491 s.select_ranges([cursor..cursor]);
12492 },
12493 );
12494 editor.nav_history = nav_history;
12495
12496 anyhow::Ok(())
12497 })??;
12498
12499 anyhow::Ok(())
12500 })
12501 .detach_and_log_err(cx);
12502 }
12503
12504 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12505 let snapshot = self.buffer.read(cx).read(cx);
12506 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12507 Some(
12508 ranges
12509 .iter()
12510 .map(move |range| {
12511 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12512 })
12513 .collect(),
12514 )
12515 }
12516
12517 fn selection_replacement_ranges(
12518 &self,
12519 range: Range<OffsetUtf16>,
12520 cx: &AppContext,
12521 ) -> Vec<Range<OffsetUtf16>> {
12522 let selections = self.selections.all::<OffsetUtf16>(cx);
12523 let newest_selection = selections
12524 .iter()
12525 .max_by_key(|selection| selection.id)
12526 .unwrap();
12527 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12528 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12529 let snapshot = self.buffer.read(cx).read(cx);
12530 selections
12531 .into_iter()
12532 .map(|mut selection| {
12533 selection.start.0 =
12534 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12535 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12536 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12537 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12538 })
12539 .collect()
12540 }
12541
12542 fn report_editor_event(
12543 &self,
12544 operation: &'static str,
12545 file_extension: Option<String>,
12546 cx: &AppContext,
12547 ) {
12548 if cfg!(any(test, feature = "test-support")) {
12549 return;
12550 }
12551
12552 let Some(project) = &self.project else { return };
12553
12554 // If None, we are in a file without an extension
12555 let file = self
12556 .buffer
12557 .read(cx)
12558 .as_singleton()
12559 .and_then(|b| b.read(cx).file());
12560 let file_extension = file_extension.or(file
12561 .as_ref()
12562 .and_then(|file| Path::new(file.file_name(cx)).extension())
12563 .and_then(|e| e.to_str())
12564 .map(|a| a.to_string()));
12565
12566 let vim_mode = cx
12567 .global::<SettingsStore>()
12568 .raw_user_settings()
12569 .get("vim_mode")
12570 == Some(&serde_json::Value::Bool(true));
12571
12572 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12573 == language::language_settings::InlineCompletionProvider::Copilot;
12574 let copilot_enabled_for_language = self
12575 .buffer
12576 .read(cx)
12577 .settings_at(0, cx)
12578 .show_inline_completions;
12579
12580 let project = project.read(cx);
12581 let telemetry = project.client().telemetry().clone();
12582 telemetry.report_editor_event(
12583 file_extension,
12584 vim_mode,
12585 operation,
12586 copilot_enabled,
12587 copilot_enabled_for_language,
12588 project.is_via_ssh(),
12589 )
12590 }
12591
12592 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12593 /// with each line being an array of {text, highlight} objects.
12594 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12595 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12596 return;
12597 };
12598
12599 #[derive(Serialize)]
12600 struct Chunk<'a> {
12601 text: String,
12602 highlight: Option<&'a str>,
12603 }
12604
12605 let snapshot = buffer.read(cx).snapshot();
12606 let range = self
12607 .selected_text_range(false, cx)
12608 .and_then(|selection| {
12609 if selection.range.is_empty() {
12610 None
12611 } else {
12612 Some(selection.range)
12613 }
12614 })
12615 .unwrap_or_else(|| 0..snapshot.len());
12616
12617 let chunks = snapshot.chunks(range, true);
12618 let mut lines = Vec::new();
12619 let mut line: VecDeque<Chunk> = VecDeque::new();
12620
12621 let Some(style) = self.style.as_ref() else {
12622 return;
12623 };
12624
12625 for chunk in chunks {
12626 let highlight = chunk
12627 .syntax_highlight_id
12628 .and_then(|id| id.name(&style.syntax));
12629 let mut chunk_lines = chunk.text.split('\n').peekable();
12630 while let Some(text) = chunk_lines.next() {
12631 let mut merged_with_last_token = false;
12632 if let Some(last_token) = line.back_mut() {
12633 if last_token.highlight == highlight {
12634 last_token.text.push_str(text);
12635 merged_with_last_token = true;
12636 }
12637 }
12638
12639 if !merged_with_last_token {
12640 line.push_back(Chunk {
12641 text: text.into(),
12642 highlight,
12643 });
12644 }
12645
12646 if chunk_lines.peek().is_some() {
12647 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12648 line.pop_front();
12649 }
12650 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12651 line.pop_back();
12652 }
12653
12654 lines.push(mem::take(&mut line));
12655 }
12656 }
12657 }
12658
12659 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12660 return;
12661 };
12662 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12663 }
12664
12665 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12666 &self.inlay_hint_cache
12667 }
12668
12669 pub fn replay_insert_event(
12670 &mut self,
12671 text: &str,
12672 relative_utf16_range: Option<Range<isize>>,
12673 cx: &mut ViewContext<Self>,
12674 ) {
12675 if !self.input_enabled {
12676 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12677 return;
12678 }
12679 if let Some(relative_utf16_range) = relative_utf16_range {
12680 let selections = self.selections.all::<OffsetUtf16>(cx);
12681 self.change_selections(None, cx, |s| {
12682 let new_ranges = selections.into_iter().map(|range| {
12683 let start = OffsetUtf16(
12684 range
12685 .head()
12686 .0
12687 .saturating_add_signed(relative_utf16_range.start),
12688 );
12689 let end = OffsetUtf16(
12690 range
12691 .head()
12692 .0
12693 .saturating_add_signed(relative_utf16_range.end),
12694 );
12695 start..end
12696 });
12697 s.select_ranges(new_ranges);
12698 });
12699 }
12700
12701 self.handle_input(text, cx);
12702 }
12703
12704 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12705 let Some(provider) = self.semantics_provider.as_ref() else {
12706 return false;
12707 };
12708
12709 let mut supports = false;
12710 self.buffer().read(cx).for_each_buffer(|buffer| {
12711 supports |= provider.supports_inlay_hints(buffer, cx);
12712 });
12713 supports
12714 }
12715
12716 pub fn focus(&self, cx: &mut WindowContext) {
12717 cx.focus(&self.focus_handle)
12718 }
12719
12720 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12721 self.focus_handle.is_focused(cx)
12722 }
12723
12724 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12725 cx.emit(EditorEvent::Focused);
12726
12727 if let Some(descendant) = self
12728 .last_focused_descendant
12729 .take()
12730 .and_then(|descendant| descendant.upgrade())
12731 {
12732 cx.focus(&descendant);
12733 } else {
12734 if let Some(blame) = self.blame.as_ref() {
12735 blame.update(cx, GitBlame::focus)
12736 }
12737
12738 self.blink_manager.update(cx, BlinkManager::enable);
12739 self.show_cursor_names(cx);
12740 self.buffer.update(cx, |buffer, cx| {
12741 buffer.finalize_last_transaction(cx);
12742 if self.leader_peer_id.is_none() {
12743 buffer.set_active_selections(
12744 &self.selections.disjoint_anchors(),
12745 self.selections.line_mode,
12746 self.cursor_shape,
12747 cx,
12748 );
12749 }
12750 });
12751 }
12752 }
12753
12754 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12755 cx.emit(EditorEvent::FocusedIn)
12756 }
12757
12758 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12759 if event.blurred != self.focus_handle {
12760 self.last_focused_descendant = Some(event.blurred);
12761 }
12762 }
12763
12764 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12765 self.blink_manager.update(cx, BlinkManager::disable);
12766 self.buffer
12767 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12768
12769 if let Some(blame) = self.blame.as_ref() {
12770 blame.update(cx, GitBlame::blur)
12771 }
12772 if !self.hover_state.focused(cx) {
12773 hide_hover(self, cx);
12774 }
12775
12776 self.hide_context_menu(cx);
12777 cx.emit(EditorEvent::Blurred);
12778 cx.notify();
12779 }
12780
12781 pub fn register_action<A: Action>(
12782 &mut self,
12783 listener: impl Fn(&A, &mut WindowContext) + 'static,
12784 ) -> Subscription {
12785 let id = self.next_editor_action_id.post_inc();
12786 let listener = Arc::new(listener);
12787 self.editor_actions.borrow_mut().insert(
12788 id,
12789 Box::new(move |cx| {
12790 let cx = cx.window_context();
12791 let listener = listener.clone();
12792 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12793 let action = action.downcast_ref().unwrap();
12794 if phase == DispatchPhase::Bubble {
12795 listener(action, cx)
12796 }
12797 })
12798 }),
12799 );
12800
12801 let editor_actions = self.editor_actions.clone();
12802 Subscription::new(move || {
12803 editor_actions.borrow_mut().remove(&id);
12804 })
12805 }
12806
12807 pub fn file_header_size(&self) -> u32 {
12808 FILE_HEADER_HEIGHT
12809 }
12810
12811 pub fn revert(
12812 &mut self,
12813 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12814 cx: &mut ViewContext<Self>,
12815 ) {
12816 self.buffer().update(cx, |multi_buffer, cx| {
12817 for (buffer_id, changes) in revert_changes {
12818 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12819 buffer.update(cx, |buffer, cx| {
12820 buffer.edit(
12821 changes.into_iter().map(|(range, text)| {
12822 (range, text.to_string().map(Arc::<str>::from))
12823 }),
12824 None,
12825 cx,
12826 );
12827 });
12828 }
12829 }
12830 });
12831 self.change_selections(None, cx, |selections| selections.refresh());
12832 }
12833
12834 pub fn to_pixel_point(
12835 &mut self,
12836 source: multi_buffer::Anchor,
12837 editor_snapshot: &EditorSnapshot,
12838 cx: &mut ViewContext<Self>,
12839 ) -> Option<gpui::Point<Pixels>> {
12840 let source_point = source.to_display_point(editor_snapshot);
12841 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12842 }
12843
12844 pub fn display_to_pixel_point(
12845 &mut self,
12846 source: DisplayPoint,
12847 editor_snapshot: &EditorSnapshot,
12848 cx: &mut ViewContext<Self>,
12849 ) -> Option<gpui::Point<Pixels>> {
12850 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12851 let text_layout_details = self.text_layout_details(cx);
12852 let scroll_top = text_layout_details
12853 .scroll_anchor
12854 .scroll_position(editor_snapshot)
12855 .y;
12856
12857 if source.row().as_f32() < scroll_top.floor() {
12858 return None;
12859 }
12860 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12861 let source_y = line_height * (source.row().as_f32() - scroll_top);
12862 Some(gpui::Point::new(source_x, source_y))
12863 }
12864
12865 pub fn has_active_completions_menu(&self) -> bool {
12866 self.context_menu.read().as_ref().map_or(false, |menu| {
12867 menu.visible() && matches!(menu, ContextMenu::Completions(_))
12868 })
12869 }
12870
12871 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12872 self.addons
12873 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
12874 }
12875
12876 pub fn unregister_addon<T: Addon>(&mut self) {
12877 self.addons.remove(&std::any::TypeId::of::<T>());
12878 }
12879
12880 pub fn addon<T: Addon>(&self) -> Option<&T> {
12881 let type_id = std::any::TypeId::of::<T>();
12882 self.addons
12883 .get(&type_id)
12884 .and_then(|item| item.to_any().downcast_ref::<T>())
12885 }
12886}
12887
12888fn hunks_for_selections(
12889 multi_buffer_snapshot: &MultiBufferSnapshot,
12890 selections: &[Selection<Anchor>],
12891) -> Vec<MultiBufferDiffHunk> {
12892 let buffer_rows_for_selections = selections.iter().map(|selection| {
12893 let head = selection.head();
12894 let tail = selection.tail();
12895 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
12896 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
12897 if start > end {
12898 end..start
12899 } else {
12900 start..end
12901 }
12902 });
12903
12904 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
12905}
12906
12907pub fn hunks_for_rows(
12908 rows: impl Iterator<Item = Range<MultiBufferRow>>,
12909 multi_buffer_snapshot: &MultiBufferSnapshot,
12910) -> Vec<MultiBufferDiffHunk> {
12911 let mut hunks = Vec::new();
12912 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
12913 HashMap::default();
12914 for selected_multi_buffer_rows in rows {
12915 let query_rows =
12916 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
12917 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
12918 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
12919 // when the caret is just above or just below the deleted hunk.
12920 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
12921 let related_to_selection = if allow_adjacent {
12922 hunk.row_range.overlaps(&query_rows)
12923 || hunk.row_range.start == query_rows.end
12924 || hunk.row_range.end == query_rows.start
12925 } else {
12926 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
12927 // `hunk.row_range` is exclusive (e.g. [2..3] means 2nd row is selected)
12928 hunk.row_range.overlaps(&selected_multi_buffer_rows)
12929 || selected_multi_buffer_rows.end == hunk.row_range.start
12930 };
12931 if related_to_selection {
12932 if !processed_buffer_rows
12933 .entry(hunk.buffer_id)
12934 .or_default()
12935 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
12936 {
12937 continue;
12938 }
12939 hunks.push(hunk);
12940 }
12941 }
12942 }
12943
12944 hunks
12945}
12946
12947pub trait CollaborationHub {
12948 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
12949 fn user_participant_indices<'a>(
12950 &self,
12951 cx: &'a AppContext,
12952 ) -> &'a HashMap<u64, ParticipantIndex>;
12953 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
12954}
12955
12956impl CollaborationHub for Model<Project> {
12957 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
12958 self.read(cx).collaborators()
12959 }
12960
12961 fn user_participant_indices<'a>(
12962 &self,
12963 cx: &'a AppContext,
12964 ) -> &'a HashMap<u64, ParticipantIndex> {
12965 self.read(cx).user_store().read(cx).participant_indices()
12966 }
12967
12968 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
12969 let this = self.read(cx);
12970 let user_ids = this.collaborators().values().map(|c| c.user_id);
12971 this.user_store().read_with(cx, |user_store, cx| {
12972 user_store.participant_names(user_ids, cx)
12973 })
12974 }
12975}
12976
12977pub trait SemanticsProvider {
12978 fn hover(
12979 &self,
12980 buffer: &Model<Buffer>,
12981 position: text::Anchor,
12982 cx: &mut AppContext,
12983 ) -> Option<Task<Vec<project::Hover>>>;
12984
12985 fn inlay_hints(
12986 &self,
12987 buffer_handle: Model<Buffer>,
12988 range: Range<text::Anchor>,
12989 cx: &mut AppContext,
12990 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
12991
12992 fn resolve_inlay_hint(
12993 &self,
12994 hint: InlayHint,
12995 buffer_handle: Model<Buffer>,
12996 server_id: LanguageServerId,
12997 cx: &mut AppContext,
12998 ) -> Option<Task<anyhow::Result<InlayHint>>>;
12999
13000 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13001
13002 fn document_highlights(
13003 &self,
13004 buffer: &Model<Buffer>,
13005 position: text::Anchor,
13006 cx: &mut AppContext,
13007 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13008
13009 fn definitions(
13010 &self,
13011 buffer: &Model<Buffer>,
13012 position: text::Anchor,
13013 kind: GotoDefinitionKind,
13014 cx: &mut AppContext,
13015 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13016
13017 fn range_for_rename(
13018 &self,
13019 buffer: &Model<Buffer>,
13020 position: text::Anchor,
13021 cx: &mut AppContext,
13022 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13023
13024 fn perform_rename(
13025 &self,
13026 buffer: &Model<Buffer>,
13027 position: text::Anchor,
13028 new_name: String,
13029 cx: &mut AppContext,
13030 ) -> Option<Task<Result<ProjectTransaction>>>;
13031}
13032
13033pub trait CompletionProvider {
13034 fn completions(
13035 &self,
13036 buffer: &Model<Buffer>,
13037 buffer_position: text::Anchor,
13038 trigger: CompletionContext,
13039 cx: &mut ViewContext<Editor>,
13040 ) -> Task<Result<Vec<Completion>>>;
13041
13042 fn resolve_completions(
13043 &self,
13044 buffer: Model<Buffer>,
13045 completion_indices: Vec<usize>,
13046 completions: Arc<RwLock<Box<[Completion]>>>,
13047 cx: &mut ViewContext<Editor>,
13048 ) -> Task<Result<bool>>;
13049
13050 fn apply_additional_edits_for_completion(
13051 &self,
13052 buffer: Model<Buffer>,
13053 completion: Completion,
13054 push_to_history: bool,
13055 cx: &mut ViewContext<Editor>,
13056 ) -> Task<Result<Option<language::Transaction>>>;
13057
13058 fn is_completion_trigger(
13059 &self,
13060 buffer: &Model<Buffer>,
13061 position: language::Anchor,
13062 text: &str,
13063 trigger_in_words: bool,
13064 cx: &mut ViewContext<Editor>,
13065 ) -> bool;
13066
13067 fn sort_completions(&self) -> bool {
13068 true
13069 }
13070}
13071
13072pub trait CodeActionProvider {
13073 fn code_actions(
13074 &self,
13075 buffer: &Model<Buffer>,
13076 range: Range<text::Anchor>,
13077 cx: &mut WindowContext,
13078 ) -> Task<Result<Vec<CodeAction>>>;
13079
13080 fn apply_code_action(
13081 &self,
13082 buffer_handle: Model<Buffer>,
13083 action: CodeAction,
13084 excerpt_id: ExcerptId,
13085 push_to_history: bool,
13086 cx: &mut WindowContext,
13087 ) -> Task<Result<ProjectTransaction>>;
13088}
13089
13090impl CodeActionProvider for Model<Project> {
13091 fn code_actions(
13092 &self,
13093 buffer: &Model<Buffer>,
13094 range: Range<text::Anchor>,
13095 cx: &mut WindowContext,
13096 ) -> Task<Result<Vec<CodeAction>>> {
13097 self.update(cx, |project, cx| project.code_actions(buffer, range, cx))
13098 }
13099
13100 fn apply_code_action(
13101 &self,
13102 buffer_handle: Model<Buffer>,
13103 action: CodeAction,
13104 _excerpt_id: ExcerptId,
13105 push_to_history: bool,
13106 cx: &mut WindowContext,
13107 ) -> Task<Result<ProjectTransaction>> {
13108 self.update(cx, |project, cx| {
13109 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13110 })
13111 }
13112}
13113
13114fn snippet_completions(
13115 project: &Project,
13116 buffer: &Model<Buffer>,
13117 buffer_position: text::Anchor,
13118 cx: &mut AppContext,
13119) -> Vec<Completion> {
13120 let language = buffer.read(cx).language_at(buffer_position);
13121 let language_name = language.as_ref().map(|language| language.lsp_id());
13122 let snippet_store = project.snippets().read(cx);
13123 let snippets = snippet_store.snippets_for(language_name, cx);
13124
13125 if snippets.is_empty() {
13126 return vec![];
13127 }
13128 let snapshot = buffer.read(cx).text_snapshot();
13129 let chars = snapshot.reversed_chars_for_range(text::Anchor::MIN..buffer_position);
13130
13131 let scope = language.map(|language| language.default_scope());
13132 let classifier = CharClassifier::new(scope).for_completion(true);
13133 let mut last_word = chars
13134 .take_while(|c| classifier.is_word(*c))
13135 .collect::<String>();
13136 last_word = last_word.chars().rev().collect();
13137 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13138 let to_lsp = |point: &text::Anchor| {
13139 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13140 point_to_lsp(end)
13141 };
13142 let lsp_end = to_lsp(&buffer_position);
13143 snippets
13144 .into_iter()
13145 .filter_map(|snippet| {
13146 let matching_prefix = snippet
13147 .prefix
13148 .iter()
13149 .find(|prefix| prefix.starts_with(&last_word))?;
13150 let start = as_offset - last_word.len();
13151 let start = snapshot.anchor_before(start);
13152 let range = start..buffer_position;
13153 let lsp_start = to_lsp(&start);
13154 let lsp_range = lsp::Range {
13155 start: lsp_start,
13156 end: lsp_end,
13157 };
13158 Some(Completion {
13159 old_range: range,
13160 new_text: snippet.body.clone(),
13161 label: CodeLabel {
13162 text: matching_prefix.clone(),
13163 runs: vec![],
13164 filter_range: 0..matching_prefix.len(),
13165 },
13166 server_id: LanguageServerId(usize::MAX),
13167 documentation: snippet.description.clone().map(Documentation::SingleLine),
13168 lsp_completion: lsp::CompletionItem {
13169 label: snippet.prefix.first().unwrap().clone(),
13170 kind: Some(CompletionItemKind::SNIPPET),
13171 label_details: snippet.description.as_ref().map(|description| {
13172 lsp::CompletionItemLabelDetails {
13173 detail: Some(description.clone()),
13174 description: None,
13175 }
13176 }),
13177 insert_text_format: Some(InsertTextFormat::SNIPPET),
13178 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13179 lsp::InsertReplaceEdit {
13180 new_text: snippet.body.clone(),
13181 insert: lsp_range,
13182 replace: lsp_range,
13183 },
13184 )),
13185 filter_text: Some(snippet.body.clone()),
13186 sort_text: Some(char::MAX.to_string()),
13187 ..Default::default()
13188 },
13189 confirm: None,
13190 })
13191 })
13192 .collect()
13193}
13194
13195impl CompletionProvider for Model<Project> {
13196 fn completions(
13197 &self,
13198 buffer: &Model<Buffer>,
13199 buffer_position: text::Anchor,
13200 options: CompletionContext,
13201 cx: &mut ViewContext<Editor>,
13202 ) -> Task<Result<Vec<Completion>>> {
13203 self.update(cx, |project, cx| {
13204 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13205 let project_completions = project.completions(buffer, buffer_position, options, cx);
13206 cx.background_executor().spawn(async move {
13207 let mut completions = project_completions.await?;
13208 //let snippets = snippets.into_iter().;
13209 completions.extend(snippets);
13210 Ok(completions)
13211 })
13212 })
13213 }
13214
13215 fn resolve_completions(
13216 &self,
13217 buffer: Model<Buffer>,
13218 completion_indices: Vec<usize>,
13219 completions: Arc<RwLock<Box<[Completion]>>>,
13220 cx: &mut ViewContext<Editor>,
13221 ) -> Task<Result<bool>> {
13222 self.update(cx, |project, cx| {
13223 project.resolve_completions(buffer, completion_indices, completions, cx)
13224 })
13225 }
13226
13227 fn apply_additional_edits_for_completion(
13228 &self,
13229 buffer: Model<Buffer>,
13230 completion: Completion,
13231 push_to_history: bool,
13232 cx: &mut ViewContext<Editor>,
13233 ) -> Task<Result<Option<language::Transaction>>> {
13234 self.update(cx, |project, cx| {
13235 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13236 })
13237 }
13238
13239 fn is_completion_trigger(
13240 &self,
13241 buffer: &Model<Buffer>,
13242 position: language::Anchor,
13243 text: &str,
13244 trigger_in_words: bool,
13245 cx: &mut ViewContext<Editor>,
13246 ) -> bool {
13247 if !EditorSettings::get_global(cx).show_completions_on_input {
13248 return false;
13249 }
13250
13251 let mut chars = text.chars();
13252 let char = if let Some(char) = chars.next() {
13253 char
13254 } else {
13255 return false;
13256 };
13257 if chars.next().is_some() {
13258 return false;
13259 }
13260
13261 let buffer = buffer.read(cx);
13262 let classifier = buffer
13263 .snapshot()
13264 .char_classifier_at(position)
13265 .for_completion(true);
13266 if trigger_in_words && classifier.is_word(char) {
13267 return true;
13268 }
13269
13270 buffer
13271 .completion_triggers()
13272 .iter()
13273 .any(|string| string == text)
13274 }
13275}
13276
13277impl SemanticsProvider for Model<Project> {
13278 fn hover(
13279 &self,
13280 buffer: &Model<Buffer>,
13281 position: text::Anchor,
13282 cx: &mut AppContext,
13283 ) -> Option<Task<Vec<project::Hover>>> {
13284 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13285 }
13286
13287 fn document_highlights(
13288 &self,
13289 buffer: &Model<Buffer>,
13290 position: text::Anchor,
13291 cx: &mut AppContext,
13292 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13293 Some(self.update(cx, |project, cx| {
13294 project.document_highlights(buffer, position, cx)
13295 }))
13296 }
13297
13298 fn definitions(
13299 &self,
13300 buffer: &Model<Buffer>,
13301 position: text::Anchor,
13302 kind: GotoDefinitionKind,
13303 cx: &mut AppContext,
13304 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13305 Some(self.update(cx, |project, cx| match kind {
13306 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13307 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13308 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13309 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13310 }))
13311 }
13312
13313 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13314 // TODO: make this work for remote projects
13315 self.read(cx)
13316 .language_servers_for_buffer(buffer.read(cx), cx)
13317 .any(
13318 |(_, server)| match server.capabilities().inlay_hint_provider {
13319 Some(lsp::OneOf::Left(enabled)) => enabled,
13320 Some(lsp::OneOf::Right(_)) => true,
13321 None => false,
13322 },
13323 )
13324 }
13325
13326 fn inlay_hints(
13327 &self,
13328 buffer_handle: Model<Buffer>,
13329 range: Range<text::Anchor>,
13330 cx: &mut AppContext,
13331 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13332 Some(self.update(cx, |project, cx| {
13333 project.inlay_hints(buffer_handle, range, cx)
13334 }))
13335 }
13336
13337 fn resolve_inlay_hint(
13338 &self,
13339 hint: InlayHint,
13340 buffer_handle: Model<Buffer>,
13341 server_id: LanguageServerId,
13342 cx: &mut AppContext,
13343 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13344 Some(self.update(cx, |project, cx| {
13345 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13346 }))
13347 }
13348
13349 fn range_for_rename(
13350 &self,
13351 buffer: &Model<Buffer>,
13352 position: text::Anchor,
13353 cx: &mut AppContext,
13354 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13355 Some(self.update(cx, |project, cx| {
13356 project.prepare_rename(buffer.clone(), position, cx)
13357 }))
13358 }
13359
13360 fn perform_rename(
13361 &self,
13362 buffer: &Model<Buffer>,
13363 position: text::Anchor,
13364 new_name: String,
13365 cx: &mut AppContext,
13366 ) -> Option<Task<Result<ProjectTransaction>>> {
13367 Some(self.update(cx, |project, cx| {
13368 project.perform_rename(buffer.clone(), position, new_name, cx)
13369 }))
13370 }
13371}
13372
13373fn inlay_hint_settings(
13374 location: Anchor,
13375 snapshot: &MultiBufferSnapshot,
13376 cx: &mut ViewContext<'_, Editor>,
13377) -> InlayHintSettings {
13378 let file = snapshot.file_at(location);
13379 let language = snapshot.language_at(location);
13380 let settings = all_language_settings(file, cx);
13381 settings
13382 .language(language.map(|l| l.name()).as_ref())
13383 .inlay_hints
13384}
13385
13386fn consume_contiguous_rows(
13387 contiguous_row_selections: &mut Vec<Selection<Point>>,
13388 selection: &Selection<Point>,
13389 display_map: &DisplaySnapshot,
13390 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
13391) -> (MultiBufferRow, MultiBufferRow) {
13392 contiguous_row_selections.push(selection.clone());
13393 let start_row = MultiBufferRow(selection.start.row);
13394 let mut end_row = ending_row(selection, display_map);
13395
13396 while let Some(next_selection) = selections.peek() {
13397 if next_selection.start.row <= end_row.0 {
13398 end_row = ending_row(next_selection, display_map);
13399 contiguous_row_selections.push(selections.next().unwrap().clone());
13400 } else {
13401 break;
13402 }
13403 }
13404 (start_row, end_row)
13405}
13406
13407fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13408 if next_selection.end.column > 0 || next_selection.is_empty() {
13409 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13410 } else {
13411 MultiBufferRow(next_selection.end.row)
13412 }
13413}
13414
13415impl EditorSnapshot {
13416 pub fn remote_selections_in_range<'a>(
13417 &'a self,
13418 range: &'a Range<Anchor>,
13419 collaboration_hub: &dyn CollaborationHub,
13420 cx: &'a AppContext,
13421 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13422 let participant_names = collaboration_hub.user_names(cx);
13423 let participant_indices = collaboration_hub.user_participant_indices(cx);
13424 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13425 let collaborators_by_replica_id = collaborators_by_peer_id
13426 .iter()
13427 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13428 .collect::<HashMap<_, _>>();
13429 self.buffer_snapshot
13430 .selections_in_range(range, false)
13431 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13432 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13433 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13434 let user_name = participant_names.get(&collaborator.user_id).cloned();
13435 Some(RemoteSelection {
13436 replica_id,
13437 selection,
13438 cursor_shape,
13439 line_mode,
13440 participant_index,
13441 peer_id: collaborator.peer_id,
13442 user_name,
13443 })
13444 })
13445 }
13446
13447 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13448 self.display_snapshot.buffer_snapshot.language_at(position)
13449 }
13450
13451 pub fn is_focused(&self) -> bool {
13452 self.is_focused
13453 }
13454
13455 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13456 self.placeholder_text.as_ref()
13457 }
13458
13459 pub fn scroll_position(&self) -> gpui::Point<f32> {
13460 self.scroll_anchor.scroll_position(&self.display_snapshot)
13461 }
13462
13463 fn gutter_dimensions(
13464 &self,
13465 font_id: FontId,
13466 font_size: Pixels,
13467 em_width: Pixels,
13468 em_advance: Pixels,
13469 max_line_number_width: Pixels,
13470 cx: &AppContext,
13471 ) -> GutterDimensions {
13472 if !self.show_gutter {
13473 return GutterDimensions::default();
13474 }
13475 let descent = cx.text_system().descent(font_id, font_size);
13476
13477 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13478 matches!(
13479 ProjectSettings::get_global(cx).git.git_gutter,
13480 Some(GitGutterSetting::TrackedFiles)
13481 )
13482 });
13483 let gutter_settings = EditorSettings::get_global(cx).gutter;
13484 let show_line_numbers = self
13485 .show_line_numbers
13486 .unwrap_or(gutter_settings.line_numbers);
13487 let line_gutter_width = if show_line_numbers {
13488 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13489 let min_width_for_number_on_gutter = em_advance * 4.0;
13490 max_line_number_width.max(min_width_for_number_on_gutter)
13491 } else {
13492 0.0.into()
13493 };
13494
13495 let show_code_actions = self
13496 .show_code_actions
13497 .unwrap_or(gutter_settings.code_actions);
13498
13499 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13500
13501 let git_blame_entries_width =
13502 self.git_blame_gutter_max_author_length
13503 .map(|max_author_length| {
13504 // Length of the author name, but also space for the commit hash,
13505 // the spacing and the timestamp.
13506 let max_char_count = max_author_length
13507 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13508 + 7 // length of commit sha
13509 + 14 // length of max relative timestamp ("60 minutes ago")
13510 + 4; // gaps and margins
13511
13512 em_advance * max_char_count
13513 });
13514
13515 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13516 left_padding += if show_code_actions || show_runnables {
13517 em_width * 3.0
13518 } else if show_git_gutter && show_line_numbers {
13519 em_width * 2.0
13520 } else if show_git_gutter || show_line_numbers {
13521 em_width
13522 } else {
13523 px(0.)
13524 };
13525
13526 let right_padding = if gutter_settings.folds && show_line_numbers {
13527 em_width * 4.0
13528 } else if gutter_settings.folds {
13529 em_width * 3.0
13530 } else if show_line_numbers {
13531 em_width
13532 } else {
13533 px(0.)
13534 };
13535
13536 GutterDimensions {
13537 left_padding,
13538 right_padding,
13539 width: line_gutter_width + left_padding + right_padding,
13540 margin: -descent,
13541 git_blame_entries_width,
13542 }
13543 }
13544
13545 pub fn render_fold_toggle(
13546 &self,
13547 buffer_row: MultiBufferRow,
13548 row_contains_cursor: bool,
13549 editor: View<Editor>,
13550 cx: &mut WindowContext,
13551 ) -> Option<AnyElement> {
13552 let folded = self.is_line_folded(buffer_row);
13553
13554 if let Some(crease) = self
13555 .crease_snapshot
13556 .query_row(buffer_row, &self.buffer_snapshot)
13557 {
13558 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
13559 if folded {
13560 editor.update(cx, |editor, cx| {
13561 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
13562 });
13563 } else {
13564 editor.update(cx, |editor, cx| {
13565 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
13566 });
13567 }
13568 });
13569
13570 Some((crease.render_toggle)(
13571 buffer_row,
13572 folded,
13573 toggle_callback,
13574 cx,
13575 ))
13576 } else if folded
13577 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
13578 {
13579 Some(
13580 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
13581 .selected(folded)
13582 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
13583 if folded {
13584 this.unfold_at(&UnfoldAt { buffer_row }, cx);
13585 } else {
13586 this.fold_at(&FoldAt { buffer_row }, cx);
13587 }
13588 }))
13589 .into_any_element(),
13590 )
13591 } else {
13592 None
13593 }
13594 }
13595
13596 pub fn render_crease_trailer(
13597 &self,
13598 buffer_row: MultiBufferRow,
13599 cx: &mut WindowContext,
13600 ) -> Option<AnyElement> {
13601 let folded = self.is_line_folded(buffer_row);
13602 let crease = self
13603 .crease_snapshot
13604 .query_row(buffer_row, &self.buffer_snapshot)?;
13605 Some((crease.render_trailer)(buffer_row, folded, cx))
13606 }
13607}
13608
13609impl Deref for EditorSnapshot {
13610 type Target = DisplaySnapshot;
13611
13612 fn deref(&self) -> &Self::Target {
13613 &self.display_snapshot
13614 }
13615}
13616
13617#[derive(Clone, Debug, PartialEq, Eq)]
13618pub enum EditorEvent {
13619 InputIgnored {
13620 text: Arc<str>,
13621 },
13622 InputHandled {
13623 utf16_range_to_replace: Option<Range<isize>>,
13624 text: Arc<str>,
13625 },
13626 ExcerptsAdded {
13627 buffer: Model<Buffer>,
13628 predecessor: ExcerptId,
13629 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
13630 },
13631 ExcerptsRemoved {
13632 ids: Vec<ExcerptId>,
13633 },
13634 ExcerptsEdited {
13635 ids: Vec<ExcerptId>,
13636 },
13637 ExcerptsExpanded {
13638 ids: Vec<ExcerptId>,
13639 },
13640 BufferEdited,
13641 Edited {
13642 transaction_id: clock::Lamport,
13643 },
13644 Reparsed(BufferId),
13645 Focused,
13646 FocusedIn,
13647 Blurred,
13648 DirtyChanged,
13649 Saved,
13650 TitleChanged,
13651 DiffBaseChanged,
13652 SelectionsChanged {
13653 local: bool,
13654 },
13655 ScrollPositionChanged {
13656 local: bool,
13657 autoscroll: bool,
13658 },
13659 Closed,
13660 TransactionUndone {
13661 transaction_id: clock::Lamport,
13662 },
13663 TransactionBegun {
13664 transaction_id: clock::Lamport,
13665 },
13666 Reloaded,
13667 CursorShapeChanged,
13668}
13669
13670impl EventEmitter<EditorEvent> for Editor {}
13671
13672impl FocusableView for Editor {
13673 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
13674 self.focus_handle.clone()
13675 }
13676}
13677
13678impl Render for Editor {
13679 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
13680 let settings = ThemeSettings::get_global(cx);
13681
13682 let text_style = match self.mode {
13683 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
13684 color: cx.theme().colors().editor_foreground,
13685 font_family: settings.ui_font.family.clone(),
13686 font_features: settings.ui_font.features.clone(),
13687 font_fallbacks: settings.ui_font.fallbacks.clone(),
13688 font_size: rems(0.875).into(),
13689 font_weight: settings.ui_font.weight,
13690 line_height: relative(settings.buffer_line_height.value()),
13691 ..Default::default()
13692 },
13693 EditorMode::Full => TextStyle {
13694 color: cx.theme().colors().editor_foreground,
13695 font_family: settings.buffer_font.family.clone(),
13696 font_features: settings.buffer_font.features.clone(),
13697 font_fallbacks: settings.buffer_font.fallbacks.clone(),
13698 font_size: settings.buffer_font_size(cx).into(),
13699 font_weight: settings.buffer_font.weight,
13700 line_height: relative(settings.buffer_line_height.value()),
13701 ..Default::default()
13702 },
13703 };
13704
13705 let background = match self.mode {
13706 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
13707 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
13708 EditorMode::Full => cx.theme().colors().editor_background,
13709 };
13710
13711 EditorElement::new(
13712 cx.view(),
13713 EditorStyle {
13714 background,
13715 local_player: cx.theme().players().local(),
13716 text: text_style,
13717 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
13718 syntax: cx.theme().syntax().clone(),
13719 status: cx.theme().status().clone(),
13720 inlay_hints_style: make_inlay_hints_style(cx),
13721 suggestions_style: HighlightStyle {
13722 color: Some(cx.theme().status().predictive),
13723 ..HighlightStyle::default()
13724 },
13725 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
13726 },
13727 )
13728 }
13729}
13730
13731impl ViewInputHandler for Editor {
13732 fn text_for_range(
13733 &mut self,
13734 range_utf16: Range<usize>,
13735 cx: &mut ViewContext<Self>,
13736 ) -> Option<String> {
13737 Some(
13738 self.buffer
13739 .read(cx)
13740 .read(cx)
13741 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
13742 .collect(),
13743 )
13744 }
13745
13746 fn selected_text_range(
13747 &mut self,
13748 ignore_disabled_input: bool,
13749 cx: &mut ViewContext<Self>,
13750 ) -> Option<UTF16Selection> {
13751 // Prevent the IME menu from appearing when holding down an alphabetic key
13752 // while input is disabled.
13753 if !ignore_disabled_input && !self.input_enabled {
13754 return None;
13755 }
13756
13757 let selection = self.selections.newest::<OffsetUtf16>(cx);
13758 let range = selection.range();
13759
13760 Some(UTF16Selection {
13761 range: range.start.0..range.end.0,
13762 reversed: selection.reversed,
13763 })
13764 }
13765
13766 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
13767 let snapshot = self.buffer.read(cx).read(cx);
13768 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
13769 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
13770 }
13771
13772 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
13773 self.clear_highlights::<InputComposition>(cx);
13774 self.ime_transaction.take();
13775 }
13776
13777 fn replace_text_in_range(
13778 &mut self,
13779 range_utf16: Option<Range<usize>>,
13780 text: &str,
13781 cx: &mut ViewContext<Self>,
13782 ) {
13783 if !self.input_enabled {
13784 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13785 return;
13786 }
13787
13788 self.transact(cx, |this, cx| {
13789 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
13790 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13791 Some(this.selection_replacement_ranges(range_utf16, cx))
13792 } else {
13793 this.marked_text_ranges(cx)
13794 };
13795
13796 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
13797 let newest_selection_id = this.selections.newest_anchor().id;
13798 this.selections
13799 .all::<OffsetUtf16>(cx)
13800 .iter()
13801 .zip(ranges_to_replace.iter())
13802 .find_map(|(selection, range)| {
13803 if selection.id == newest_selection_id {
13804 Some(
13805 (range.start.0 as isize - selection.head().0 as isize)
13806 ..(range.end.0 as isize - selection.head().0 as isize),
13807 )
13808 } else {
13809 None
13810 }
13811 })
13812 });
13813
13814 cx.emit(EditorEvent::InputHandled {
13815 utf16_range_to_replace: range_to_replace,
13816 text: text.into(),
13817 });
13818
13819 if let Some(new_selected_ranges) = new_selected_ranges {
13820 this.change_selections(None, cx, |selections| {
13821 selections.select_ranges(new_selected_ranges)
13822 });
13823 this.backspace(&Default::default(), cx);
13824 }
13825
13826 this.handle_input(text, cx);
13827 });
13828
13829 if let Some(transaction) = self.ime_transaction {
13830 self.buffer.update(cx, |buffer, cx| {
13831 buffer.group_until_transaction(transaction, cx);
13832 });
13833 }
13834
13835 self.unmark_text(cx);
13836 }
13837
13838 fn replace_and_mark_text_in_range(
13839 &mut self,
13840 range_utf16: Option<Range<usize>>,
13841 text: &str,
13842 new_selected_range_utf16: Option<Range<usize>>,
13843 cx: &mut ViewContext<Self>,
13844 ) {
13845 if !self.input_enabled {
13846 return;
13847 }
13848
13849 let transaction = self.transact(cx, |this, cx| {
13850 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
13851 let snapshot = this.buffer.read(cx).read(cx);
13852 if let Some(relative_range_utf16) = range_utf16.as_ref() {
13853 for marked_range in &mut marked_ranges {
13854 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
13855 marked_range.start.0 += relative_range_utf16.start;
13856 marked_range.start =
13857 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
13858 marked_range.end =
13859 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
13860 }
13861 }
13862 Some(marked_ranges)
13863 } else if let Some(range_utf16) = range_utf16 {
13864 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13865 Some(this.selection_replacement_ranges(range_utf16, cx))
13866 } else {
13867 None
13868 };
13869
13870 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
13871 let newest_selection_id = this.selections.newest_anchor().id;
13872 this.selections
13873 .all::<OffsetUtf16>(cx)
13874 .iter()
13875 .zip(ranges_to_replace.iter())
13876 .find_map(|(selection, range)| {
13877 if selection.id == newest_selection_id {
13878 Some(
13879 (range.start.0 as isize - selection.head().0 as isize)
13880 ..(range.end.0 as isize - selection.head().0 as isize),
13881 )
13882 } else {
13883 None
13884 }
13885 })
13886 });
13887
13888 cx.emit(EditorEvent::InputHandled {
13889 utf16_range_to_replace: range_to_replace,
13890 text: text.into(),
13891 });
13892
13893 if let Some(ranges) = ranges_to_replace {
13894 this.change_selections(None, cx, |s| s.select_ranges(ranges));
13895 }
13896
13897 let marked_ranges = {
13898 let snapshot = this.buffer.read(cx).read(cx);
13899 this.selections
13900 .disjoint_anchors()
13901 .iter()
13902 .map(|selection| {
13903 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
13904 })
13905 .collect::<Vec<_>>()
13906 };
13907
13908 if text.is_empty() {
13909 this.unmark_text(cx);
13910 } else {
13911 this.highlight_text::<InputComposition>(
13912 marked_ranges.clone(),
13913 HighlightStyle {
13914 underline: Some(UnderlineStyle {
13915 thickness: px(1.),
13916 color: None,
13917 wavy: false,
13918 }),
13919 ..Default::default()
13920 },
13921 cx,
13922 );
13923 }
13924
13925 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
13926 let use_autoclose = this.use_autoclose;
13927 let use_auto_surround = this.use_auto_surround;
13928 this.set_use_autoclose(false);
13929 this.set_use_auto_surround(false);
13930 this.handle_input(text, cx);
13931 this.set_use_autoclose(use_autoclose);
13932 this.set_use_auto_surround(use_auto_surround);
13933
13934 if let Some(new_selected_range) = new_selected_range_utf16 {
13935 let snapshot = this.buffer.read(cx).read(cx);
13936 let new_selected_ranges = marked_ranges
13937 .into_iter()
13938 .map(|marked_range| {
13939 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
13940 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
13941 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
13942 snapshot.clip_offset_utf16(new_start, Bias::Left)
13943 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
13944 })
13945 .collect::<Vec<_>>();
13946
13947 drop(snapshot);
13948 this.change_selections(None, cx, |selections| {
13949 selections.select_ranges(new_selected_ranges)
13950 });
13951 }
13952 });
13953
13954 self.ime_transaction = self.ime_transaction.or(transaction);
13955 if let Some(transaction) = self.ime_transaction {
13956 self.buffer.update(cx, |buffer, cx| {
13957 buffer.group_until_transaction(transaction, cx);
13958 });
13959 }
13960
13961 if self.text_highlights::<InputComposition>(cx).is_none() {
13962 self.ime_transaction.take();
13963 }
13964 }
13965
13966 fn bounds_for_range(
13967 &mut self,
13968 range_utf16: Range<usize>,
13969 element_bounds: gpui::Bounds<Pixels>,
13970 cx: &mut ViewContext<Self>,
13971 ) -> Option<gpui::Bounds<Pixels>> {
13972 let text_layout_details = self.text_layout_details(cx);
13973 let style = &text_layout_details.editor_style;
13974 let font_id = cx.text_system().resolve_font(&style.text.font());
13975 let font_size = style.text.font_size.to_pixels(cx.rem_size());
13976 let line_height = style.text.line_height_in_pixels(cx.rem_size());
13977
13978 let em_width = cx
13979 .text_system()
13980 .typographic_bounds(font_id, font_size, 'm')
13981 .unwrap()
13982 .size
13983 .width;
13984
13985 let snapshot = self.snapshot(cx);
13986 let scroll_position = snapshot.scroll_position();
13987 let scroll_left = scroll_position.x * em_width;
13988
13989 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
13990 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
13991 + self.gutter_dimensions.width;
13992 let y = line_height * (start.row().as_f32() - scroll_position.y);
13993
13994 Some(Bounds {
13995 origin: element_bounds.origin + point(x, y),
13996 size: size(em_width, line_height),
13997 })
13998 }
13999}
14000
14001trait SelectionExt {
14002 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14003 fn spanned_rows(
14004 &self,
14005 include_end_if_at_line_start: bool,
14006 map: &DisplaySnapshot,
14007 ) -> Range<MultiBufferRow>;
14008}
14009
14010impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14011 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14012 let start = self
14013 .start
14014 .to_point(&map.buffer_snapshot)
14015 .to_display_point(map);
14016 let end = self
14017 .end
14018 .to_point(&map.buffer_snapshot)
14019 .to_display_point(map);
14020 if self.reversed {
14021 end..start
14022 } else {
14023 start..end
14024 }
14025 }
14026
14027 fn spanned_rows(
14028 &self,
14029 include_end_if_at_line_start: bool,
14030 map: &DisplaySnapshot,
14031 ) -> Range<MultiBufferRow> {
14032 let start = self.start.to_point(&map.buffer_snapshot);
14033 let mut end = self.end.to_point(&map.buffer_snapshot);
14034 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14035 end.row -= 1;
14036 }
14037
14038 let buffer_start = map.prev_line_boundary(start).0;
14039 let buffer_end = map.next_line_boundary(end).0;
14040 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14041 }
14042}
14043
14044impl<T: InvalidationRegion> InvalidationStack<T> {
14045 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14046 where
14047 S: Clone + ToOffset,
14048 {
14049 while let Some(region) = self.last() {
14050 let all_selections_inside_invalidation_ranges =
14051 if selections.len() == region.ranges().len() {
14052 selections
14053 .iter()
14054 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14055 .all(|(selection, invalidation_range)| {
14056 let head = selection.head().to_offset(buffer);
14057 invalidation_range.start <= head && invalidation_range.end >= head
14058 })
14059 } else {
14060 false
14061 };
14062
14063 if all_selections_inside_invalidation_ranges {
14064 break;
14065 } else {
14066 self.pop();
14067 }
14068 }
14069 }
14070}
14071
14072impl<T> Default for InvalidationStack<T> {
14073 fn default() -> Self {
14074 Self(Default::default())
14075 }
14076}
14077
14078impl<T> Deref for InvalidationStack<T> {
14079 type Target = Vec<T>;
14080
14081 fn deref(&self) -> &Self::Target {
14082 &self.0
14083 }
14084}
14085
14086impl<T> DerefMut for InvalidationStack<T> {
14087 fn deref_mut(&mut self) -> &mut Self::Target {
14088 &mut self.0
14089 }
14090}
14091
14092impl InvalidationRegion for SnippetState {
14093 fn ranges(&self) -> &[Range<Anchor>] {
14094 &self.ranges[self.active_index]
14095 }
14096}
14097
14098pub fn diagnostic_block_renderer(
14099 diagnostic: Diagnostic,
14100 max_message_rows: Option<u8>,
14101 allow_closing: bool,
14102 _is_valid: bool,
14103) -> RenderBlock {
14104 let (text_without_backticks, code_ranges) =
14105 highlight_diagnostic_message(&diagnostic, max_message_rows);
14106
14107 Box::new(move |cx: &mut BlockContext| {
14108 let group_id: SharedString = cx.block_id.to_string().into();
14109
14110 let mut text_style = cx.text_style().clone();
14111 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14112 let theme_settings = ThemeSettings::get_global(cx);
14113 text_style.font_family = theme_settings.buffer_font.family.clone();
14114 text_style.font_style = theme_settings.buffer_font.style;
14115 text_style.font_features = theme_settings.buffer_font.features.clone();
14116 text_style.font_weight = theme_settings.buffer_font.weight;
14117
14118 let multi_line_diagnostic = diagnostic.message.contains('\n');
14119
14120 let buttons = |diagnostic: &Diagnostic| {
14121 if multi_line_diagnostic {
14122 v_flex()
14123 } else {
14124 h_flex()
14125 }
14126 .when(allow_closing, |div| {
14127 div.children(diagnostic.is_primary.then(|| {
14128 IconButton::new("close-block", IconName::XCircle)
14129 .icon_color(Color::Muted)
14130 .size(ButtonSize::Compact)
14131 .style(ButtonStyle::Transparent)
14132 .visible_on_hover(group_id.clone())
14133 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14134 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14135 }))
14136 })
14137 .child(
14138 IconButton::new("copy-block", IconName::Copy)
14139 .icon_color(Color::Muted)
14140 .size(ButtonSize::Compact)
14141 .style(ButtonStyle::Transparent)
14142 .visible_on_hover(group_id.clone())
14143 .on_click({
14144 let message = diagnostic.message.clone();
14145 move |_click, cx| {
14146 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14147 }
14148 })
14149 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14150 )
14151 };
14152
14153 let icon_size = buttons(&diagnostic)
14154 .into_any_element()
14155 .layout_as_root(AvailableSpace::min_size(), cx);
14156
14157 h_flex()
14158 .id(cx.block_id)
14159 .group(group_id.clone())
14160 .relative()
14161 .size_full()
14162 .pl(cx.gutter_dimensions.width)
14163 .w(cx.max_width + cx.gutter_dimensions.width)
14164 .child(
14165 div()
14166 .flex()
14167 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14168 .flex_shrink(),
14169 )
14170 .child(buttons(&diagnostic))
14171 .child(div().flex().flex_shrink_0().child(
14172 StyledText::new(text_without_backticks.clone()).with_highlights(
14173 &text_style,
14174 code_ranges.iter().map(|range| {
14175 (
14176 range.clone(),
14177 HighlightStyle {
14178 font_weight: Some(FontWeight::BOLD),
14179 ..Default::default()
14180 },
14181 )
14182 }),
14183 ),
14184 ))
14185 .into_any_element()
14186 })
14187}
14188
14189pub fn highlight_diagnostic_message(
14190 diagnostic: &Diagnostic,
14191 mut max_message_rows: Option<u8>,
14192) -> (SharedString, Vec<Range<usize>>) {
14193 let mut text_without_backticks = String::new();
14194 let mut code_ranges = Vec::new();
14195
14196 if let Some(source) = &diagnostic.source {
14197 text_without_backticks.push_str(source);
14198 code_ranges.push(0..source.len());
14199 text_without_backticks.push_str(": ");
14200 }
14201
14202 let mut prev_offset = 0;
14203 let mut in_code_block = false;
14204 let has_row_limit = max_message_rows.is_some();
14205 let mut newline_indices = diagnostic
14206 .message
14207 .match_indices('\n')
14208 .filter(|_| has_row_limit)
14209 .map(|(ix, _)| ix)
14210 .fuse()
14211 .peekable();
14212
14213 for (quote_ix, _) in diagnostic
14214 .message
14215 .match_indices('`')
14216 .chain([(diagnostic.message.len(), "")])
14217 {
14218 let mut first_newline_ix = None;
14219 let mut last_newline_ix = None;
14220 while let Some(newline_ix) = newline_indices.peek() {
14221 if *newline_ix < quote_ix {
14222 if first_newline_ix.is_none() {
14223 first_newline_ix = Some(*newline_ix);
14224 }
14225 last_newline_ix = Some(*newline_ix);
14226
14227 if let Some(rows_left) = &mut max_message_rows {
14228 if *rows_left == 0 {
14229 break;
14230 } else {
14231 *rows_left -= 1;
14232 }
14233 }
14234 let _ = newline_indices.next();
14235 } else {
14236 break;
14237 }
14238 }
14239 let prev_len = text_without_backticks.len();
14240 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14241 text_without_backticks.push_str(new_text);
14242 if in_code_block {
14243 code_ranges.push(prev_len..text_without_backticks.len());
14244 }
14245 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14246 in_code_block = !in_code_block;
14247 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14248 text_without_backticks.push_str("...");
14249 break;
14250 }
14251 }
14252
14253 (text_without_backticks.into(), code_ranges)
14254}
14255
14256fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14257 match severity {
14258 DiagnosticSeverity::ERROR => colors.error,
14259 DiagnosticSeverity::WARNING => colors.warning,
14260 DiagnosticSeverity::INFORMATION => colors.info,
14261 DiagnosticSeverity::HINT => colors.info,
14262 _ => colors.ignored,
14263 }
14264}
14265
14266pub fn styled_runs_for_code_label<'a>(
14267 label: &'a CodeLabel,
14268 syntax_theme: &'a theme::SyntaxTheme,
14269) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14270 let fade_out = HighlightStyle {
14271 fade_out: Some(0.35),
14272 ..Default::default()
14273 };
14274
14275 let mut prev_end = label.filter_range.end;
14276 label
14277 .runs
14278 .iter()
14279 .enumerate()
14280 .flat_map(move |(ix, (range, highlight_id))| {
14281 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14282 style
14283 } else {
14284 return Default::default();
14285 };
14286 let mut muted_style = style;
14287 muted_style.highlight(fade_out);
14288
14289 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14290 if range.start >= label.filter_range.end {
14291 if range.start > prev_end {
14292 runs.push((prev_end..range.start, fade_out));
14293 }
14294 runs.push((range.clone(), muted_style));
14295 } else if range.end <= label.filter_range.end {
14296 runs.push((range.clone(), style));
14297 } else {
14298 runs.push((range.start..label.filter_range.end, style));
14299 runs.push((label.filter_range.end..range.end, muted_style));
14300 }
14301 prev_end = cmp::max(prev_end, range.end);
14302
14303 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14304 runs.push((prev_end..label.text.len(), fade_out));
14305 }
14306
14307 runs
14308 })
14309}
14310
14311pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14312 let mut prev_index = 0;
14313 let mut prev_codepoint: Option<char> = None;
14314 text.char_indices()
14315 .chain([(text.len(), '\0')])
14316 .filter_map(move |(index, codepoint)| {
14317 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14318 let is_boundary = index == text.len()
14319 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14320 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14321 if is_boundary {
14322 let chunk = &text[prev_index..index];
14323 prev_index = index;
14324 Some(chunk)
14325 } else {
14326 None
14327 }
14328 })
14329}
14330
14331pub trait RangeToAnchorExt: Sized {
14332 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14333
14334 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14335 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14336 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14337 }
14338}
14339
14340impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14341 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14342 let start_offset = self.start.to_offset(snapshot);
14343 let end_offset = self.end.to_offset(snapshot);
14344 if start_offset == end_offset {
14345 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14346 } else {
14347 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14348 }
14349 }
14350}
14351
14352pub trait RowExt {
14353 fn as_f32(&self) -> f32;
14354
14355 fn next_row(&self) -> Self;
14356
14357 fn previous_row(&self) -> Self;
14358
14359 fn minus(&self, other: Self) -> u32;
14360}
14361
14362impl RowExt for DisplayRow {
14363 fn as_f32(&self) -> f32 {
14364 self.0 as f32
14365 }
14366
14367 fn next_row(&self) -> Self {
14368 Self(self.0 + 1)
14369 }
14370
14371 fn previous_row(&self) -> Self {
14372 Self(self.0.saturating_sub(1))
14373 }
14374
14375 fn minus(&self, other: Self) -> u32 {
14376 self.0 - other.0
14377 }
14378}
14379
14380impl RowExt for MultiBufferRow {
14381 fn as_f32(&self) -> f32 {
14382 self.0 as f32
14383 }
14384
14385 fn next_row(&self) -> Self {
14386 Self(self.0 + 1)
14387 }
14388
14389 fn previous_row(&self) -> Self {
14390 Self(self.0.saturating_sub(1))
14391 }
14392
14393 fn minus(&self, other: Self) -> u32 {
14394 self.0 - other.0
14395 }
14396}
14397
14398trait RowRangeExt {
14399 type Row;
14400
14401 fn len(&self) -> usize;
14402
14403 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14404}
14405
14406impl RowRangeExt for Range<MultiBufferRow> {
14407 type Row = MultiBufferRow;
14408
14409 fn len(&self) -> usize {
14410 (self.end.0 - self.start.0) as usize
14411 }
14412
14413 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14414 (self.start.0..self.end.0).map(MultiBufferRow)
14415 }
14416}
14417
14418impl RowRangeExt for Range<DisplayRow> {
14419 type Row = DisplayRow;
14420
14421 fn len(&self) -> usize {
14422 (self.end.0 - self.start.0) as usize
14423 }
14424
14425 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14426 (self.start.0..self.end.0).map(DisplayRow)
14427 }
14428}
14429
14430fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14431 if hunk.diff_base_byte_range.is_empty() {
14432 DiffHunkStatus::Added
14433 } else if hunk.row_range.is_empty() {
14434 DiffHunkStatus::Removed
14435 } else {
14436 DiffHunkStatus::Modified
14437 }
14438}
14439
14440/// If select range has more than one line, we
14441/// just point the cursor to range.start.
14442fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14443 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14444 range
14445 } else {
14446 range.start..range.start
14447 }
14448}