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 rust_analyzer_ext;
39pub mod scroll;
40mod selections_collection;
41pub mod tasks;
42
43#[cfg(test)]
44mod editor_tests;
45mod signature_help;
46#[cfg(any(test, feature = "test-support"))]
47pub mod test;
48
49use ::git::diff::{DiffHunk, DiffHunkStatus};
50use ::git::{parse_git_remote_url, BuildPermalinkParams, GitHostingProviderRegistry};
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,
64};
65pub use editor_settings_controls::*;
66use element::LineWithInvisibles;
67pub use element::{
68 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
69};
70use futures::FutureExt;
71use fuzzy::{StringMatch, StringMatchCandidate};
72use git::blame::GitBlame;
73use git::diff_hunk_to_display;
74use gpui::{
75 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
76 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardEntry,
77 ClipboardItem, Context, DispatchPhase, ElementId, EntityId, EventEmitter, FocusHandle,
78 FocusOutEvent, FocusableView, FontId, FontWeight, HighlightStyle, Hsla, InteractiveText,
79 KeyContext, ListSizingBehavior, Model, MouseButton, PaintQuad, ParentElement, Pixels, Render,
80 SharedString, Size, StrikethroughStyle, Styled, StyledText, Subscription, Task, TextStyle,
81 UTF16Selection, UnderlineStyle, UniformListScrollHandle, View, ViewContext, ViewInputHandler,
82 VisualContext, WeakFocusHandle, WeakView, WindowContext,
83};
84use highlight_matching_bracket::refresh_matching_bracket_highlights;
85use hover_popover::{hide_hover, HoverState};
86use hunk_diff::ExpandedHunks;
87pub(crate) use hunk_diff::HoveredHunk;
88use indent_guides::ActiveIndentGuidesState;
89use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
90pub use inline_completion_provider::*;
91pub use items::MAX_TAB_TITLE_LEN;
92use itertools::Itertools;
93use language::{
94 language_settings::{self, all_language_settings, InlayHintSettings},
95 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
96 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
97 Point, Selection, SelectionGoal, TransactionId,
98};
99use language::{point_to_lsp, BufferRow, CharClassifier, Runnable, RunnableRange};
100use linked_editing_ranges::refresh_linked_ranges;
101use similar::{ChangeTag, TextDiff};
102use task::{ResolvedTask, TaskTemplate, TaskVariables};
103
104use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
105pub use lsp::CompletionContext;
106use lsp::{
107 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
108 LanguageServerId,
109};
110use mouse_context_menu::MouseContextMenu;
111use movement::TextLayoutDetails;
112pub use multi_buffer::{
113 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
114 ToPoint,
115};
116use multi_buffer::{ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16};
117use ordered_float::OrderedFloat;
118use parking_lot::{Mutex, RwLock};
119use project::project_settings::{GitGutterSetting, ProjectSettings};
120use project::{
121 CodeAction, Completion, CompletionIntent, FormatTrigger, Item, Location, Project, ProjectPath,
122 ProjectTransaction, TaskSourceKind,
123};
124use rand::prelude::*;
125use rpc::{proto::*, ErrorExt};
126use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
127use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
128use serde::{Deserialize, Serialize};
129use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
130use smallvec::SmallVec;
131use snippet::Snippet;
132use std::{
133 any::TypeId,
134 borrow::Cow,
135 cell::RefCell,
136 cmp::{self, Ordering, Reverse},
137 mem,
138 num::NonZeroU32,
139 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
140 path::{Path, PathBuf},
141 rc::Rc,
142 sync::Arc,
143 time::{Duration, Instant},
144};
145pub use sum_tree::Bias;
146use sum_tree::TreeMap;
147use text::{BufferId, OffsetUtf16, Rope};
148use theme::{
149 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
150 ThemeColors, ThemeSettings,
151};
152use ui::{
153 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
154 ListItem, Popover, Tooltip,
155};
156use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
157use workspace::item::{ItemHandle, PreviewTabsSettings};
158use workspace::notifications::{DetachAndPromptErr, NotificationId};
159use workspace::{
160 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
161};
162use workspace::{OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
163
164use crate::hover_links::find_url;
165use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
166
167pub const FILE_HEADER_HEIGHT: u32 = 1;
168pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
169pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
170pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
171const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
172const MAX_LINE_LEN: usize = 1024;
173const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
174const MAX_SELECTION_HISTORY_LEN: usize = 1024;
175pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
176#[doc(hidden)]
177pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
178#[doc(hidden)]
179pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
180
181pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
182pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
183
184pub fn render_parsed_markdown(
185 element_id: impl Into<ElementId>,
186 parsed: &language::ParsedMarkdown,
187 editor_style: &EditorStyle,
188 workspace: Option<WeakView<Workspace>>,
189 cx: &mut WindowContext,
190) -> InteractiveText {
191 let code_span_background_color = cx
192 .theme()
193 .colors()
194 .editor_document_highlight_read_background;
195
196 let highlights = gpui::combine_highlights(
197 parsed.highlights.iter().filter_map(|(range, highlight)| {
198 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
199 Some((range.clone(), highlight))
200 }),
201 parsed
202 .regions
203 .iter()
204 .zip(&parsed.region_ranges)
205 .filter_map(|(region, range)| {
206 if region.code {
207 Some((
208 range.clone(),
209 HighlightStyle {
210 background_color: Some(code_span_background_color),
211 ..Default::default()
212 },
213 ))
214 } else {
215 None
216 }
217 }),
218 );
219
220 let mut links = Vec::new();
221 let mut link_ranges = Vec::new();
222 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
223 if let Some(link) = region.link.clone() {
224 links.push(link);
225 link_ranges.push(range.clone());
226 }
227 }
228
229 InteractiveText::new(
230 element_id,
231 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
232 )
233 .on_click(link_ranges, move |clicked_range_ix, cx| {
234 match &links[clicked_range_ix] {
235 markdown::Link::Web { url } => cx.open_url(url),
236 markdown::Link::Path { path } => {
237 if let Some(workspace) = &workspace {
238 _ = workspace.update(cx, |workspace, cx| {
239 workspace.open_abs_path(path.clone(), false, cx).detach();
240 });
241 }
242 }
243 }
244 })
245}
246
247#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
248pub(crate) enum InlayId {
249 Suggestion(usize),
250 Hint(usize),
251}
252
253impl InlayId {
254 fn id(&self) -> usize {
255 match self {
256 Self::Suggestion(id) => *id,
257 Self::Hint(id) => *id,
258 }
259 }
260}
261
262enum DiffRowHighlight {}
263enum DocumentHighlightRead {}
264enum DocumentHighlightWrite {}
265enum InputComposition {}
266
267#[derive(Copy, Clone, PartialEq, Eq)]
268pub enum Direction {
269 Prev,
270 Next,
271}
272
273#[derive(Debug, Copy, Clone, PartialEq, Eq)]
274pub enum Navigated {
275 Yes,
276 No,
277}
278
279impl Navigated {
280 pub fn from_bool(yes: bool) -> Navigated {
281 if yes {
282 Navigated::Yes
283 } else {
284 Navigated::No
285 }
286 }
287}
288
289pub fn init_settings(cx: &mut AppContext) {
290 EditorSettings::register(cx);
291}
292
293pub fn init(cx: &mut AppContext) {
294 init_settings(cx);
295
296 workspace::register_project_item::<Editor>(cx);
297 workspace::FollowableViewRegistry::register::<Editor>(cx);
298 workspace::register_serializable_item::<Editor>(cx);
299
300 cx.observe_new_views(
301 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
302 workspace.register_action(Editor::new_file);
303 workspace.register_action(Editor::new_file_vertical);
304 workspace.register_action(Editor::new_file_horizontal);
305 },
306 )
307 .detach();
308
309 cx.on_action(move |_: &workspace::NewFile, cx| {
310 let app_state = workspace::AppState::global(cx);
311 if let Some(app_state) = app_state.upgrade() {
312 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
313 Editor::new_file(workspace, &Default::default(), cx)
314 })
315 .detach();
316 }
317 });
318 cx.on_action(move |_: &workspace::NewWindow, cx| {
319 let app_state = workspace::AppState::global(cx);
320 if let Some(app_state) = app_state.upgrade() {
321 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
322 Editor::new_file(workspace, &Default::default(), cx)
323 })
324 .detach();
325 }
326 });
327}
328
329pub struct SearchWithinRange;
330
331trait InvalidationRegion {
332 fn ranges(&self) -> &[Range<Anchor>];
333}
334
335#[derive(Clone, Debug, PartialEq)]
336pub enum SelectPhase {
337 Begin {
338 position: DisplayPoint,
339 add: bool,
340 click_count: usize,
341 },
342 BeginColumnar {
343 position: DisplayPoint,
344 reset: bool,
345 goal_column: u32,
346 },
347 Extend {
348 position: DisplayPoint,
349 click_count: usize,
350 },
351 Update {
352 position: DisplayPoint,
353 goal_column: u32,
354 scroll_delta: gpui::Point<f32>,
355 },
356 End,
357}
358
359#[derive(Clone, Debug)]
360pub enum SelectMode {
361 Character,
362 Word(Range<Anchor>),
363 Line(Range<Anchor>),
364 All,
365}
366
367#[derive(Copy, Clone, PartialEq, Eq, Debug)]
368pub enum EditorMode {
369 SingleLine { auto_width: bool },
370 AutoHeight { max_lines: usize },
371 Full,
372}
373
374#[derive(Clone, Debug)]
375pub enum SoftWrap {
376 None,
377 PreferLine,
378 EditorWidth,
379 Column(u32),
380 Bounded(u32),
381}
382
383#[derive(Clone)]
384pub struct EditorStyle {
385 pub background: Hsla,
386 pub local_player: PlayerColor,
387 pub text: TextStyle,
388 pub scrollbar_width: Pixels,
389 pub syntax: Arc<SyntaxTheme>,
390 pub status: StatusColors,
391 pub inlay_hints_style: HighlightStyle,
392 pub suggestions_style: HighlightStyle,
393 pub unnecessary_code_fade: f32,
394}
395
396impl Default for EditorStyle {
397 fn default() -> Self {
398 Self {
399 background: Hsla::default(),
400 local_player: PlayerColor::default(),
401 text: TextStyle::default(),
402 scrollbar_width: Pixels::default(),
403 syntax: Default::default(),
404 // HACK: Status colors don't have a real default.
405 // We should look into removing the status colors from the editor
406 // style and retrieve them directly from the theme.
407 status: StatusColors::dark(),
408 inlay_hints_style: HighlightStyle::default(),
409 suggestions_style: HighlightStyle::default(),
410 unnecessary_code_fade: Default::default(),
411 }
412 }
413}
414
415type CompletionId = usize;
416
417#[derive(Clone, Debug)]
418struct CompletionState {
419 // render_inlay_ids represents the inlay hints that are inserted
420 // for rendering the inline completions. They may be discontinuous
421 // in the event that the completion provider returns some intersection
422 // with the existing content.
423 render_inlay_ids: Vec<InlayId>,
424 // text is the resulting rope that is inserted when the user accepts a completion.
425 text: Rope,
426 // position is the position of the cursor when the completion was triggered.
427 position: multi_buffer::Anchor,
428 // delete_range is the range of text that this completion state covers.
429 // if the completion is accepted, this range should be deleted.
430 delete_range: Option<Range<multi_buffer::Anchor>>,
431}
432
433#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
434struct EditorActionId(usize);
435
436impl EditorActionId {
437 pub fn post_inc(&mut self) -> Self {
438 let answer = self.0;
439
440 *self = Self(answer + 1);
441
442 Self(answer)
443 }
444}
445
446// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
447// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
448
449type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
450type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
451
452#[derive(Default)]
453struct ScrollbarMarkerState {
454 scrollbar_size: Size<Pixels>,
455 dirty: bool,
456 markers: Arc<[PaintQuad]>,
457 pending_refresh: Option<Task<Result<()>>>,
458}
459
460impl ScrollbarMarkerState {
461 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
462 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
463 }
464}
465
466#[derive(Clone, Debug)]
467struct RunnableTasks {
468 templates: Vec<(TaskSourceKind, TaskTemplate)>,
469 offset: MultiBufferOffset,
470 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
471 column: u32,
472 // Values of all named captures, including those starting with '_'
473 extra_variables: HashMap<String, String>,
474 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
475 context_range: Range<BufferOffset>,
476}
477
478#[derive(Clone)]
479struct ResolvedTasks {
480 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
481 position: Anchor,
482}
483#[derive(Copy, Clone, Debug)]
484struct MultiBufferOffset(usize);
485#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
486struct BufferOffset(usize);
487
488// Addons allow storing per-editor state in other crates (e.g. Vim)
489pub trait Addon: 'static {
490 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
491
492 fn to_any(&self) -> &dyn std::any::Any;
493}
494
495/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
496///
497/// See the [module level documentation](self) for more information.
498pub struct Editor {
499 focus_handle: FocusHandle,
500 last_focused_descendant: Option<WeakFocusHandle>,
501 /// The text buffer being edited
502 buffer: Model<MultiBuffer>,
503 /// Map of how text in the buffer should be displayed.
504 /// Handles soft wraps, folds, fake inlay text insertions, etc.
505 pub display_map: Model<DisplayMap>,
506 pub selections: SelectionsCollection,
507 pub scroll_manager: ScrollManager,
508 /// When inline assist editors are linked, they all render cursors because
509 /// typing enters text into each of them, even the ones that aren't focused.
510 pub(crate) show_cursor_when_unfocused: bool,
511 columnar_selection_tail: Option<Anchor>,
512 add_selections_state: Option<AddSelectionsState>,
513 select_next_state: Option<SelectNextState>,
514 select_prev_state: Option<SelectNextState>,
515 selection_history: SelectionHistory,
516 autoclose_regions: Vec<AutocloseRegion>,
517 snippet_stack: InvalidationStack<SnippetState>,
518 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
519 ime_transaction: Option<TransactionId>,
520 active_diagnostics: Option<ActiveDiagnosticGroup>,
521 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
522 project: Option<Model<Project>>,
523 completion_provider: Option<Box<dyn CompletionProvider>>,
524 collaboration_hub: Option<Box<dyn CollaborationHub>>,
525 blink_manager: Model<BlinkManager>,
526 show_cursor_names: bool,
527 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
528 pub show_local_selections: bool,
529 mode: EditorMode,
530 show_breadcrumbs: bool,
531 show_gutter: bool,
532 show_line_numbers: Option<bool>,
533 use_relative_line_numbers: Option<bool>,
534 show_git_diff_gutter: Option<bool>,
535 show_code_actions: Option<bool>,
536 show_runnables: Option<bool>,
537 show_wrap_guides: Option<bool>,
538 show_indent_guides: Option<bool>,
539 placeholder_text: Option<Arc<str>>,
540 highlight_order: usize,
541 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
542 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
543 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
544 scrollbar_marker_state: ScrollbarMarkerState,
545 active_indent_guides_state: ActiveIndentGuidesState,
546 nav_history: Option<ItemNavHistory>,
547 context_menu: RwLock<Option<ContextMenu>>,
548 mouse_context_menu: Option<MouseContextMenu>,
549 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
550 signature_help_state: SignatureHelpState,
551 auto_signature_help: Option<bool>,
552 find_all_references_task_sources: Vec<Anchor>,
553 next_completion_id: CompletionId,
554 completion_documentation_pre_resolve_debounce: DebouncedDelay,
555 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
556 code_actions_task: Option<Task<()>>,
557 document_highlights_task: Option<Task<()>>,
558 linked_editing_range_task: Option<Task<Option<()>>>,
559 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
560 pending_rename: Option<RenameState>,
561 searchable: bool,
562 cursor_shape: CursorShape,
563 current_line_highlight: Option<CurrentLineHighlight>,
564 collapse_matches: bool,
565 autoindent_mode: Option<AutoindentMode>,
566 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
567 input_enabled: bool,
568 use_modal_editing: bool,
569 read_only: bool,
570 leader_peer_id: Option<PeerId>,
571 remote_id: Option<ViewId>,
572 hover_state: HoverState,
573 gutter_hovered: bool,
574 hovered_link_state: Option<HoveredLinkState>,
575 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
576 active_inline_completion: Option<CompletionState>,
577 // enable_inline_completions is a switch that Vim can use to disable
578 // inline completions based on its mode.
579 enable_inline_completions: bool,
580 show_inline_completions_override: Option<bool>,
581 inlay_hint_cache: InlayHintCache,
582 expanded_hunks: ExpandedHunks,
583 next_inlay_id: usize,
584 _subscriptions: Vec<Subscription>,
585 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
586 gutter_dimensions: GutterDimensions,
587 style: Option<EditorStyle>,
588 next_editor_action_id: EditorActionId,
589 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
590 use_autoclose: bool,
591 use_auto_surround: bool,
592 auto_replace_emoji_shortcode: bool,
593 show_git_blame_gutter: bool,
594 show_git_blame_inline: bool,
595 show_git_blame_inline_delay_task: Option<Task<()>>,
596 git_blame_inline_enabled: bool,
597 serialize_dirty_buffers: bool,
598 show_selection_menu: Option<bool>,
599 blame: Option<Model<GitBlame>>,
600 blame_subscription: Option<Subscription>,
601 custom_context_menu: Option<
602 Box<
603 dyn 'static
604 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
605 >,
606 >,
607 last_bounds: Option<Bounds<Pixels>>,
608 expect_bounds_change: Option<Bounds<Pixels>>,
609 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
610 tasks_update_task: Option<Task<()>>,
611 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
612 file_header_size: u32,
613 breadcrumb_header: Option<String>,
614 focused_block: Option<FocusedBlock>,
615 next_scroll_position: NextScrollCursorCenterTopBottom,
616 addons: HashMap<TypeId, Box<dyn Addon>>,
617 _scroll_cursor_center_top_bottom_task: Task<()>,
618}
619
620#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
621enum NextScrollCursorCenterTopBottom {
622 #[default]
623 Center,
624 Top,
625 Bottom,
626}
627
628impl NextScrollCursorCenterTopBottom {
629 fn next(&self) -> Self {
630 match self {
631 Self::Center => Self::Top,
632 Self::Top => Self::Bottom,
633 Self::Bottom => Self::Center,
634 }
635 }
636}
637
638#[derive(Clone)]
639pub struct EditorSnapshot {
640 pub mode: EditorMode,
641 show_gutter: bool,
642 show_line_numbers: Option<bool>,
643 show_git_diff_gutter: Option<bool>,
644 show_code_actions: Option<bool>,
645 show_runnables: Option<bool>,
646 render_git_blame_gutter: bool,
647 pub display_snapshot: DisplaySnapshot,
648 pub placeholder_text: Option<Arc<str>>,
649 is_focused: bool,
650 scroll_anchor: ScrollAnchor,
651 ongoing_scroll: OngoingScroll,
652 current_line_highlight: CurrentLineHighlight,
653 gutter_hovered: bool,
654}
655
656const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
657
658#[derive(Default, Debug, Clone, Copy)]
659pub struct GutterDimensions {
660 pub left_padding: Pixels,
661 pub right_padding: Pixels,
662 pub width: Pixels,
663 pub margin: Pixels,
664 pub git_blame_entries_width: Option<Pixels>,
665}
666
667impl GutterDimensions {
668 /// The full width of the space taken up by the gutter.
669 pub fn full_width(&self) -> Pixels {
670 self.margin + self.width
671 }
672
673 /// The width of the space reserved for the fold indicators,
674 /// use alongside 'justify_end' and `gutter_width` to
675 /// right align content with the line numbers
676 pub fn fold_area_width(&self) -> Pixels {
677 self.margin + self.right_padding
678 }
679}
680
681#[derive(Debug)]
682pub struct RemoteSelection {
683 pub replica_id: ReplicaId,
684 pub selection: Selection<Anchor>,
685 pub cursor_shape: CursorShape,
686 pub peer_id: PeerId,
687 pub line_mode: bool,
688 pub participant_index: Option<ParticipantIndex>,
689 pub user_name: Option<SharedString>,
690}
691
692#[derive(Clone, Debug)]
693struct SelectionHistoryEntry {
694 selections: Arc<[Selection<Anchor>]>,
695 select_next_state: Option<SelectNextState>,
696 select_prev_state: Option<SelectNextState>,
697 add_selections_state: Option<AddSelectionsState>,
698}
699
700enum SelectionHistoryMode {
701 Normal,
702 Undoing,
703 Redoing,
704}
705
706#[derive(Clone, PartialEq, Eq, Hash)]
707struct HoveredCursor {
708 replica_id: u16,
709 selection_id: usize,
710}
711
712impl Default for SelectionHistoryMode {
713 fn default() -> Self {
714 Self::Normal
715 }
716}
717
718#[derive(Default)]
719struct SelectionHistory {
720 #[allow(clippy::type_complexity)]
721 selections_by_transaction:
722 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
723 mode: SelectionHistoryMode,
724 undo_stack: VecDeque<SelectionHistoryEntry>,
725 redo_stack: VecDeque<SelectionHistoryEntry>,
726}
727
728impl SelectionHistory {
729 fn insert_transaction(
730 &mut self,
731 transaction_id: TransactionId,
732 selections: Arc<[Selection<Anchor>]>,
733 ) {
734 self.selections_by_transaction
735 .insert(transaction_id, (selections, None));
736 }
737
738 #[allow(clippy::type_complexity)]
739 fn transaction(
740 &self,
741 transaction_id: TransactionId,
742 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
743 self.selections_by_transaction.get(&transaction_id)
744 }
745
746 #[allow(clippy::type_complexity)]
747 fn transaction_mut(
748 &mut self,
749 transaction_id: TransactionId,
750 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
751 self.selections_by_transaction.get_mut(&transaction_id)
752 }
753
754 fn push(&mut self, entry: SelectionHistoryEntry) {
755 if !entry.selections.is_empty() {
756 match self.mode {
757 SelectionHistoryMode::Normal => {
758 self.push_undo(entry);
759 self.redo_stack.clear();
760 }
761 SelectionHistoryMode::Undoing => self.push_redo(entry),
762 SelectionHistoryMode::Redoing => self.push_undo(entry),
763 }
764 }
765 }
766
767 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
768 if self
769 .undo_stack
770 .back()
771 .map_or(true, |e| e.selections != entry.selections)
772 {
773 self.undo_stack.push_back(entry);
774 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
775 self.undo_stack.pop_front();
776 }
777 }
778 }
779
780 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
781 if self
782 .redo_stack
783 .back()
784 .map_or(true, |e| e.selections != entry.selections)
785 {
786 self.redo_stack.push_back(entry);
787 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
788 self.redo_stack.pop_front();
789 }
790 }
791 }
792}
793
794struct RowHighlight {
795 index: usize,
796 range: RangeInclusive<Anchor>,
797 color: Option<Hsla>,
798 should_autoscroll: bool,
799}
800
801#[derive(Clone, Debug)]
802struct AddSelectionsState {
803 above: bool,
804 stack: Vec<usize>,
805}
806
807#[derive(Clone)]
808struct SelectNextState {
809 query: AhoCorasick,
810 wordwise: bool,
811 done: bool,
812}
813
814impl std::fmt::Debug for SelectNextState {
815 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
816 f.debug_struct(std::any::type_name::<Self>())
817 .field("wordwise", &self.wordwise)
818 .field("done", &self.done)
819 .finish()
820 }
821}
822
823#[derive(Debug)]
824struct AutocloseRegion {
825 selection_id: usize,
826 range: Range<Anchor>,
827 pair: BracketPair,
828}
829
830#[derive(Debug)]
831struct SnippetState {
832 ranges: Vec<Vec<Range<Anchor>>>,
833 active_index: usize,
834}
835
836#[doc(hidden)]
837pub struct RenameState {
838 pub range: Range<Anchor>,
839 pub old_name: Arc<str>,
840 pub editor: View<Editor>,
841 block_id: CustomBlockId,
842}
843
844struct InvalidationStack<T>(Vec<T>);
845
846struct RegisteredInlineCompletionProvider {
847 provider: Arc<dyn InlineCompletionProviderHandle>,
848 _subscription: Subscription,
849}
850
851enum ContextMenu {
852 Completions(CompletionsMenu),
853 CodeActions(CodeActionsMenu),
854}
855
856impl ContextMenu {
857 fn select_first(
858 &mut self,
859 project: Option<&Model<Project>>,
860 cx: &mut ViewContext<Editor>,
861 ) -> bool {
862 if self.visible() {
863 match self {
864 ContextMenu::Completions(menu) => menu.select_first(project, cx),
865 ContextMenu::CodeActions(menu) => menu.select_first(cx),
866 }
867 true
868 } else {
869 false
870 }
871 }
872
873 fn select_prev(
874 &mut self,
875 project: Option<&Model<Project>>,
876 cx: &mut ViewContext<Editor>,
877 ) -> bool {
878 if self.visible() {
879 match self {
880 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
881 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
882 }
883 true
884 } else {
885 false
886 }
887 }
888
889 fn select_next(
890 &mut self,
891 project: Option<&Model<Project>>,
892 cx: &mut ViewContext<Editor>,
893 ) -> bool {
894 if self.visible() {
895 match self {
896 ContextMenu::Completions(menu) => menu.select_next(project, cx),
897 ContextMenu::CodeActions(menu) => menu.select_next(cx),
898 }
899 true
900 } else {
901 false
902 }
903 }
904
905 fn select_last(
906 &mut self,
907 project: Option<&Model<Project>>,
908 cx: &mut ViewContext<Editor>,
909 ) -> bool {
910 if self.visible() {
911 match self {
912 ContextMenu::Completions(menu) => menu.select_last(project, cx),
913 ContextMenu::CodeActions(menu) => menu.select_last(cx),
914 }
915 true
916 } else {
917 false
918 }
919 }
920
921 fn visible(&self) -> bool {
922 match self {
923 ContextMenu::Completions(menu) => menu.visible(),
924 ContextMenu::CodeActions(menu) => menu.visible(),
925 }
926 }
927
928 fn render(
929 &self,
930 cursor_position: DisplayPoint,
931 style: &EditorStyle,
932 max_height: Pixels,
933 workspace: Option<WeakView<Workspace>>,
934 cx: &mut ViewContext<Editor>,
935 ) -> (ContextMenuOrigin, AnyElement) {
936 match self {
937 ContextMenu::Completions(menu) => (
938 ContextMenuOrigin::EditorPoint(cursor_position),
939 menu.render(style, max_height, workspace, cx),
940 ),
941 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
942 }
943 }
944}
945
946enum ContextMenuOrigin {
947 EditorPoint(DisplayPoint),
948 GutterIndicator(DisplayRow),
949}
950
951#[derive(Clone)]
952struct CompletionsMenu {
953 id: CompletionId,
954 sort_completions: bool,
955 initial_position: Anchor,
956 buffer: Model<Buffer>,
957 completions: Arc<RwLock<Box<[Completion]>>>,
958 match_candidates: Arc<[StringMatchCandidate]>,
959 matches: Arc<[StringMatch]>,
960 selected_item: usize,
961 scroll_handle: UniformListScrollHandle,
962 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
963}
964
965impl CompletionsMenu {
966 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
967 self.selected_item = 0;
968 self.scroll_handle.scroll_to_item(self.selected_item);
969 self.attempt_resolve_selected_completion_documentation(project, cx);
970 cx.notify();
971 }
972
973 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
974 if self.selected_item > 0 {
975 self.selected_item -= 1;
976 } else {
977 self.selected_item = self.matches.len() - 1;
978 }
979 self.scroll_handle.scroll_to_item(self.selected_item);
980 self.attempt_resolve_selected_completion_documentation(project, cx);
981 cx.notify();
982 }
983
984 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
985 if self.selected_item + 1 < self.matches.len() {
986 self.selected_item += 1;
987 } else {
988 self.selected_item = 0;
989 }
990 self.scroll_handle.scroll_to_item(self.selected_item);
991 self.attempt_resolve_selected_completion_documentation(project, cx);
992 cx.notify();
993 }
994
995 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
996 self.selected_item = self.matches.len() - 1;
997 self.scroll_handle.scroll_to_item(self.selected_item);
998 self.attempt_resolve_selected_completion_documentation(project, cx);
999 cx.notify();
1000 }
1001
1002 fn pre_resolve_completion_documentation(
1003 buffer: Model<Buffer>,
1004 completions: Arc<RwLock<Box<[Completion]>>>,
1005 matches: Arc<[StringMatch]>,
1006 editor: &Editor,
1007 cx: &mut ViewContext<Editor>,
1008 ) -> Task<()> {
1009 let settings = EditorSettings::get_global(cx);
1010 if !settings.show_completion_documentation {
1011 return Task::ready(());
1012 }
1013
1014 let Some(provider) = editor.completion_provider.as_ref() else {
1015 return Task::ready(());
1016 };
1017
1018 let resolve_task = provider.resolve_completions(
1019 buffer,
1020 matches.iter().map(|m| m.candidate_id).collect(),
1021 completions.clone(),
1022 cx,
1023 );
1024
1025 cx.spawn(move |this, mut cx| async move {
1026 if let Some(true) = resolve_task.await.log_err() {
1027 this.update(&mut cx, |_, cx| cx.notify()).ok();
1028 }
1029 })
1030 }
1031
1032 fn attempt_resolve_selected_completion_documentation(
1033 &mut self,
1034 project: Option<&Model<Project>>,
1035 cx: &mut ViewContext<Editor>,
1036 ) {
1037 let settings = EditorSettings::get_global(cx);
1038 if !settings.show_completion_documentation {
1039 return;
1040 }
1041
1042 let completion_index = self.matches[self.selected_item].candidate_id;
1043 let Some(project) = project else {
1044 return;
1045 };
1046
1047 let resolve_task = project.update(cx, |project, cx| {
1048 project.resolve_completions(
1049 self.buffer.clone(),
1050 vec![completion_index],
1051 self.completions.clone(),
1052 cx,
1053 )
1054 });
1055
1056 let delay_ms =
1057 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1058 let delay = Duration::from_millis(delay_ms);
1059
1060 self.selected_completion_documentation_resolve_debounce
1061 .lock()
1062 .fire_new(delay, cx, |_, cx| {
1063 cx.spawn(move |this, mut cx| async move {
1064 if let Some(true) = resolve_task.await.log_err() {
1065 this.update(&mut cx, |_, cx| cx.notify()).ok();
1066 }
1067 })
1068 });
1069 }
1070
1071 fn visible(&self) -> bool {
1072 !self.matches.is_empty()
1073 }
1074
1075 fn render(
1076 &self,
1077 style: &EditorStyle,
1078 max_height: Pixels,
1079 workspace: Option<WeakView<Workspace>>,
1080 cx: &mut ViewContext<Editor>,
1081 ) -> AnyElement {
1082 let settings = EditorSettings::get_global(cx);
1083 let show_completion_documentation = settings.show_completion_documentation;
1084
1085 let widest_completion_ix = self
1086 .matches
1087 .iter()
1088 .enumerate()
1089 .max_by_key(|(_, mat)| {
1090 let completions = self.completions.read();
1091 let completion = &completions[mat.candidate_id];
1092 let documentation = &completion.documentation;
1093
1094 let mut len = completion.label.text.chars().count();
1095 if let Some(Documentation::SingleLine(text)) = documentation {
1096 if show_completion_documentation {
1097 len += text.chars().count();
1098 }
1099 }
1100
1101 len
1102 })
1103 .map(|(ix, _)| ix);
1104
1105 let completions = self.completions.clone();
1106 let matches = self.matches.clone();
1107 let selected_item = self.selected_item;
1108 let style = style.clone();
1109
1110 let multiline_docs = if show_completion_documentation {
1111 let mat = &self.matches[selected_item];
1112 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1113 Some(Documentation::MultiLinePlainText(text)) => {
1114 Some(div().child(SharedString::from(text.clone())))
1115 }
1116 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1117 Some(div().child(render_parsed_markdown(
1118 "completions_markdown",
1119 parsed,
1120 &style,
1121 workspace,
1122 cx,
1123 )))
1124 }
1125 _ => None,
1126 };
1127 multiline_docs.map(|div| {
1128 div.id("multiline_docs")
1129 .max_h(max_height)
1130 .flex_1()
1131 .px_1p5()
1132 .py_1()
1133 .min_w(px(260.))
1134 .max_w(px(640.))
1135 .w(px(500.))
1136 .overflow_y_scroll()
1137 .occlude()
1138 })
1139 } else {
1140 None
1141 };
1142
1143 let list = uniform_list(
1144 cx.view().clone(),
1145 "completions",
1146 matches.len(),
1147 move |_editor, range, cx| {
1148 let start_ix = range.start;
1149 let completions_guard = completions.read();
1150
1151 matches[range]
1152 .iter()
1153 .enumerate()
1154 .map(|(ix, mat)| {
1155 let item_ix = start_ix + ix;
1156 let candidate_id = mat.candidate_id;
1157 let completion = &completions_guard[candidate_id];
1158
1159 let documentation = if show_completion_documentation {
1160 &completion.documentation
1161 } else {
1162 &None
1163 };
1164
1165 let highlights = gpui::combine_highlights(
1166 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1167 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1168 |(range, mut highlight)| {
1169 // Ignore font weight for syntax highlighting, as we'll use it
1170 // for fuzzy matches.
1171 highlight.font_weight = None;
1172
1173 if completion.lsp_completion.deprecated.unwrap_or(false) {
1174 highlight.strikethrough = Some(StrikethroughStyle {
1175 thickness: 1.0.into(),
1176 ..Default::default()
1177 });
1178 highlight.color = Some(cx.theme().colors().text_muted);
1179 }
1180
1181 (range, highlight)
1182 },
1183 ),
1184 );
1185 let completion_label = StyledText::new(completion.label.text.clone())
1186 .with_highlights(&style.text, highlights);
1187 let documentation_label =
1188 if let Some(Documentation::SingleLine(text)) = documentation {
1189 if text.trim().is_empty() {
1190 None
1191 } else {
1192 Some(
1193 Label::new(text.clone())
1194 .ml_4()
1195 .size(LabelSize::Small)
1196 .color(Color::Muted),
1197 )
1198 }
1199 } else {
1200 None
1201 };
1202
1203 div().min_w(px(220.)).max_w(px(540.)).child(
1204 ListItem::new(mat.candidate_id)
1205 .inset(true)
1206 .selected(item_ix == selected_item)
1207 .on_click(cx.listener(move |editor, _event, cx| {
1208 cx.stop_propagation();
1209 if let Some(task) = editor.confirm_completion(
1210 &ConfirmCompletion {
1211 item_ix: Some(item_ix),
1212 },
1213 cx,
1214 ) {
1215 task.detach_and_log_err(cx)
1216 }
1217 }))
1218 .child(h_flex().overflow_hidden().child(completion_label))
1219 .end_slot::<Label>(documentation_label),
1220 )
1221 })
1222 .collect()
1223 },
1224 )
1225 .occlude()
1226 .max_h(max_height)
1227 .track_scroll(self.scroll_handle.clone())
1228 .with_width_from_item(widest_completion_ix)
1229 .with_sizing_behavior(ListSizingBehavior::Infer);
1230
1231 Popover::new()
1232 .child(list)
1233 .when_some(multiline_docs, |popover, multiline_docs| {
1234 popover.aside(multiline_docs)
1235 })
1236 .into_any_element()
1237 }
1238
1239 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1240 let mut matches = if let Some(query) = query {
1241 fuzzy::match_strings(
1242 &self.match_candidates,
1243 query,
1244 query.chars().any(|c| c.is_uppercase()),
1245 100,
1246 &Default::default(),
1247 executor,
1248 )
1249 .await
1250 } else {
1251 self.match_candidates
1252 .iter()
1253 .enumerate()
1254 .map(|(candidate_id, candidate)| StringMatch {
1255 candidate_id,
1256 score: Default::default(),
1257 positions: Default::default(),
1258 string: candidate.string.clone(),
1259 })
1260 .collect()
1261 };
1262
1263 // Remove all candidates where the query's start does not match the start of any word in the candidate
1264 if let Some(query) = query {
1265 if let Some(query_start) = query.chars().next() {
1266 matches.retain(|string_match| {
1267 split_words(&string_match.string).any(|word| {
1268 // Check that the first codepoint of the word as lowercase matches the first
1269 // codepoint of the query as lowercase
1270 word.chars()
1271 .flat_map(|codepoint| codepoint.to_lowercase())
1272 .zip(query_start.to_lowercase())
1273 .all(|(word_cp, query_cp)| word_cp == query_cp)
1274 })
1275 });
1276 }
1277 }
1278
1279 let completions = self.completions.read();
1280 if self.sort_completions {
1281 matches.sort_unstable_by_key(|mat| {
1282 // We do want to strike a balance here between what the language server tells us
1283 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1284 // `Creat` and there is a local variable called `CreateComponent`).
1285 // So what we do is: we bucket all matches into two buckets
1286 // - Strong matches
1287 // - Weak matches
1288 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1289 // and the Weak matches are the rest.
1290 //
1291 // For the strong matches, we sort by the language-servers score first and for the weak
1292 // matches, we prefer our fuzzy finder first.
1293 //
1294 // The thinking behind that: it's useless to take the sort_text the language-server gives
1295 // us into account when it's obviously a bad match.
1296
1297 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1298 enum MatchScore<'a> {
1299 Strong {
1300 sort_text: Option<&'a str>,
1301 score: Reverse<OrderedFloat<f64>>,
1302 sort_key: (usize, &'a str),
1303 },
1304 Weak {
1305 score: Reverse<OrderedFloat<f64>>,
1306 sort_text: Option<&'a str>,
1307 sort_key: (usize, &'a str),
1308 },
1309 }
1310
1311 let completion = &completions[mat.candidate_id];
1312 let sort_key = completion.sort_key();
1313 let sort_text = completion.lsp_completion.sort_text.as_deref();
1314 let score = Reverse(OrderedFloat(mat.score));
1315
1316 if mat.score >= 0.2 {
1317 MatchScore::Strong {
1318 sort_text,
1319 score,
1320 sort_key,
1321 }
1322 } else {
1323 MatchScore::Weak {
1324 score,
1325 sort_text,
1326 sort_key,
1327 }
1328 }
1329 });
1330 }
1331
1332 for mat in &mut matches {
1333 let completion = &completions[mat.candidate_id];
1334 mat.string.clone_from(&completion.label.text);
1335 for position in &mut mat.positions {
1336 *position += completion.label.filter_range.start;
1337 }
1338 }
1339 drop(completions);
1340
1341 self.matches = matches.into();
1342 self.selected_item = 0;
1343 }
1344}
1345
1346#[derive(Clone)]
1347struct CodeActionContents {
1348 tasks: Option<Arc<ResolvedTasks>>,
1349 actions: Option<Arc<[CodeAction]>>,
1350}
1351
1352impl CodeActionContents {
1353 fn len(&self) -> usize {
1354 match (&self.tasks, &self.actions) {
1355 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1356 (Some(tasks), None) => tasks.templates.len(),
1357 (None, Some(actions)) => actions.len(),
1358 (None, None) => 0,
1359 }
1360 }
1361
1362 fn is_empty(&self) -> bool {
1363 match (&self.tasks, &self.actions) {
1364 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1365 (Some(tasks), None) => tasks.templates.is_empty(),
1366 (None, Some(actions)) => actions.is_empty(),
1367 (None, None) => true,
1368 }
1369 }
1370
1371 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1372 self.tasks
1373 .iter()
1374 .flat_map(|tasks| {
1375 tasks
1376 .templates
1377 .iter()
1378 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1379 })
1380 .chain(self.actions.iter().flat_map(|actions| {
1381 actions
1382 .iter()
1383 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1384 }))
1385 }
1386 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1387 match (&self.tasks, &self.actions) {
1388 (Some(tasks), Some(actions)) => {
1389 if index < tasks.templates.len() {
1390 tasks
1391 .templates
1392 .get(index)
1393 .cloned()
1394 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1395 } else {
1396 actions
1397 .get(index - tasks.templates.len())
1398 .cloned()
1399 .map(CodeActionsItem::CodeAction)
1400 }
1401 }
1402 (Some(tasks), None) => tasks
1403 .templates
1404 .get(index)
1405 .cloned()
1406 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1407 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1408 (None, None) => None,
1409 }
1410 }
1411}
1412
1413#[allow(clippy::large_enum_variant)]
1414#[derive(Clone)]
1415enum CodeActionsItem {
1416 Task(TaskSourceKind, ResolvedTask),
1417 CodeAction(CodeAction),
1418}
1419
1420impl CodeActionsItem {
1421 fn as_task(&self) -> Option<&ResolvedTask> {
1422 let Self::Task(_, task) = self else {
1423 return None;
1424 };
1425 Some(task)
1426 }
1427 fn as_code_action(&self) -> Option<&CodeAction> {
1428 let Self::CodeAction(action) = self else {
1429 return None;
1430 };
1431 Some(action)
1432 }
1433 fn label(&self) -> String {
1434 match self {
1435 Self::CodeAction(action) => action.lsp_action.title.clone(),
1436 Self::Task(_, task) => task.resolved_label.clone(),
1437 }
1438 }
1439}
1440
1441struct CodeActionsMenu {
1442 actions: CodeActionContents,
1443 buffer: Model<Buffer>,
1444 selected_item: usize,
1445 scroll_handle: UniformListScrollHandle,
1446 deployed_from_indicator: Option<DisplayRow>,
1447}
1448
1449impl CodeActionsMenu {
1450 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1451 self.selected_item = 0;
1452 self.scroll_handle.scroll_to_item(self.selected_item);
1453 cx.notify()
1454 }
1455
1456 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1457 if self.selected_item > 0 {
1458 self.selected_item -= 1;
1459 } else {
1460 self.selected_item = self.actions.len() - 1;
1461 }
1462 self.scroll_handle.scroll_to_item(self.selected_item);
1463 cx.notify();
1464 }
1465
1466 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1467 if self.selected_item + 1 < self.actions.len() {
1468 self.selected_item += 1;
1469 } else {
1470 self.selected_item = 0;
1471 }
1472 self.scroll_handle.scroll_to_item(self.selected_item);
1473 cx.notify();
1474 }
1475
1476 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1477 self.selected_item = self.actions.len() - 1;
1478 self.scroll_handle.scroll_to_item(self.selected_item);
1479 cx.notify()
1480 }
1481
1482 fn visible(&self) -> bool {
1483 !self.actions.is_empty()
1484 }
1485
1486 fn render(
1487 &self,
1488 cursor_position: DisplayPoint,
1489 _style: &EditorStyle,
1490 max_height: Pixels,
1491 cx: &mut ViewContext<Editor>,
1492 ) -> (ContextMenuOrigin, AnyElement) {
1493 let actions = self.actions.clone();
1494 let selected_item = self.selected_item;
1495 let element = uniform_list(
1496 cx.view().clone(),
1497 "code_actions_menu",
1498 self.actions.len(),
1499 move |_this, range, cx| {
1500 actions
1501 .iter()
1502 .skip(range.start)
1503 .take(range.end - range.start)
1504 .enumerate()
1505 .map(|(ix, action)| {
1506 let item_ix = range.start + ix;
1507 let selected = selected_item == item_ix;
1508 let colors = cx.theme().colors();
1509 div()
1510 .px_1()
1511 .rounded_md()
1512 .text_color(colors.text)
1513 .when(selected, |style| {
1514 style
1515 .bg(colors.element_active)
1516 .text_color(colors.text_accent)
1517 })
1518 .hover(|style| {
1519 style
1520 .bg(colors.element_hover)
1521 .text_color(colors.text_accent)
1522 })
1523 .whitespace_nowrap()
1524 .when_some(action.as_code_action(), |this, action| {
1525 this.on_mouse_down(
1526 MouseButton::Left,
1527 cx.listener(move |editor, _, cx| {
1528 cx.stop_propagation();
1529 if let Some(task) = editor.confirm_code_action(
1530 &ConfirmCodeAction {
1531 item_ix: Some(item_ix),
1532 },
1533 cx,
1534 ) {
1535 task.detach_and_log_err(cx)
1536 }
1537 }),
1538 )
1539 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1540 .child(SharedString::from(action.lsp_action.title.clone()))
1541 })
1542 .when_some(action.as_task(), |this, task| {
1543 this.on_mouse_down(
1544 MouseButton::Left,
1545 cx.listener(move |editor, _, cx| {
1546 cx.stop_propagation();
1547 if let Some(task) = editor.confirm_code_action(
1548 &ConfirmCodeAction {
1549 item_ix: Some(item_ix),
1550 },
1551 cx,
1552 ) {
1553 task.detach_and_log_err(cx)
1554 }
1555 }),
1556 )
1557 .child(SharedString::from(task.resolved_label.clone()))
1558 })
1559 })
1560 .collect()
1561 },
1562 )
1563 .elevation_1(cx)
1564 .p_1()
1565 .max_h(max_height)
1566 .occlude()
1567 .track_scroll(self.scroll_handle.clone())
1568 .with_width_from_item(
1569 self.actions
1570 .iter()
1571 .enumerate()
1572 .max_by_key(|(_, action)| match action {
1573 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1574 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1575 })
1576 .map(|(ix, _)| ix),
1577 )
1578 .with_sizing_behavior(ListSizingBehavior::Infer)
1579 .into_any_element();
1580
1581 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1582 ContextMenuOrigin::GutterIndicator(row)
1583 } else {
1584 ContextMenuOrigin::EditorPoint(cursor_position)
1585 };
1586
1587 (cursor_position, element)
1588 }
1589}
1590
1591#[derive(Debug)]
1592struct ActiveDiagnosticGroup {
1593 primary_range: Range<Anchor>,
1594 primary_message: String,
1595 group_id: usize,
1596 blocks: HashMap<CustomBlockId, Diagnostic>,
1597 is_valid: bool,
1598}
1599
1600#[derive(Serialize, Deserialize, Clone, Debug)]
1601pub struct ClipboardSelection {
1602 pub len: usize,
1603 pub is_entire_line: bool,
1604 pub first_line_indent: u32,
1605}
1606
1607#[derive(Debug)]
1608pub(crate) struct NavigationData {
1609 cursor_anchor: Anchor,
1610 cursor_position: Point,
1611 scroll_anchor: ScrollAnchor,
1612 scroll_top_row: u32,
1613}
1614
1615#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1616enum GotoDefinitionKind {
1617 Symbol,
1618 Declaration,
1619 Type,
1620 Implementation,
1621}
1622
1623#[derive(Debug, Clone)]
1624enum InlayHintRefreshReason {
1625 Toggle(bool),
1626 SettingsChange(InlayHintSettings),
1627 NewLinesShown,
1628 BufferEdited(HashSet<Arc<Language>>),
1629 RefreshRequested,
1630 ExcerptsRemoved(Vec<ExcerptId>),
1631}
1632
1633impl InlayHintRefreshReason {
1634 fn description(&self) -> &'static str {
1635 match self {
1636 Self::Toggle(_) => "toggle",
1637 Self::SettingsChange(_) => "settings change",
1638 Self::NewLinesShown => "new lines shown",
1639 Self::BufferEdited(_) => "buffer edited",
1640 Self::RefreshRequested => "refresh requested",
1641 Self::ExcerptsRemoved(_) => "excerpts removed",
1642 }
1643 }
1644}
1645
1646pub(crate) struct FocusedBlock {
1647 id: BlockId,
1648 focus_handle: WeakFocusHandle,
1649}
1650
1651impl Editor {
1652 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1653 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1654 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1655 Self::new(
1656 EditorMode::SingleLine { auto_width: false },
1657 buffer,
1658 None,
1659 false,
1660 cx,
1661 )
1662 }
1663
1664 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1665 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1666 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1667 Self::new(EditorMode::Full, buffer, None, false, cx)
1668 }
1669
1670 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1671 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1672 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1673 Self::new(
1674 EditorMode::SingleLine { auto_width: true },
1675 buffer,
1676 None,
1677 false,
1678 cx,
1679 )
1680 }
1681
1682 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1683 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1684 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1685 Self::new(
1686 EditorMode::AutoHeight { max_lines },
1687 buffer,
1688 None,
1689 false,
1690 cx,
1691 )
1692 }
1693
1694 pub fn for_buffer(
1695 buffer: Model<Buffer>,
1696 project: Option<Model<Project>>,
1697 cx: &mut ViewContext<Self>,
1698 ) -> Self {
1699 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1700 Self::new(EditorMode::Full, buffer, project, false, cx)
1701 }
1702
1703 pub fn for_multibuffer(
1704 buffer: Model<MultiBuffer>,
1705 project: Option<Model<Project>>,
1706 show_excerpt_controls: bool,
1707 cx: &mut ViewContext<Self>,
1708 ) -> Self {
1709 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1710 }
1711
1712 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1713 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1714 let mut clone = Self::new(
1715 self.mode,
1716 self.buffer.clone(),
1717 self.project.clone(),
1718 show_excerpt_controls,
1719 cx,
1720 );
1721 self.display_map.update(cx, |display_map, cx| {
1722 let snapshot = display_map.snapshot(cx);
1723 clone.display_map.update(cx, |display_map, cx| {
1724 display_map.set_state(&snapshot, cx);
1725 });
1726 });
1727 clone.selections.clone_state(&self.selections);
1728 clone.scroll_manager.clone_state(&self.scroll_manager);
1729 clone.searchable = self.searchable;
1730 clone
1731 }
1732
1733 pub fn new(
1734 mode: EditorMode,
1735 buffer: Model<MultiBuffer>,
1736 project: Option<Model<Project>>,
1737 show_excerpt_controls: bool,
1738 cx: &mut ViewContext<Self>,
1739 ) -> Self {
1740 let style = cx.text_style();
1741 let font_size = style.font_size.to_pixels(cx.rem_size());
1742 let editor = cx.view().downgrade();
1743 let fold_placeholder = FoldPlaceholder {
1744 constrain_width: true,
1745 render: Arc::new(move |fold_id, fold_range, cx| {
1746 let editor = editor.clone();
1747 div()
1748 .id(fold_id)
1749 .bg(cx.theme().colors().ghost_element_background)
1750 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1751 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1752 .rounded_sm()
1753 .size_full()
1754 .cursor_pointer()
1755 .child("⋯")
1756 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1757 .on_click(move |_, cx| {
1758 editor
1759 .update(cx, |editor, cx| {
1760 editor.unfold_ranges(
1761 [fold_range.start..fold_range.end],
1762 true,
1763 false,
1764 cx,
1765 );
1766 cx.stop_propagation();
1767 })
1768 .ok();
1769 })
1770 .into_any()
1771 }),
1772 merge_adjacent: true,
1773 };
1774 let file_header_size = if show_excerpt_controls { 3 } else { 2 };
1775 let display_map = cx.new_model(|cx| {
1776 DisplayMap::new(
1777 buffer.clone(),
1778 style.font(),
1779 font_size,
1780 None,
1781 show_excerpt_controls,
1782 file_header_size,
1783 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1784 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1785 fold_placeholder,
1786 cx,
1787 )
1788 });
1789
1790 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1791
1792 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1793
1794 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1795 .then(|| language_settings::SoftWrap::PreferLine);
1796
1797 let mut project_subscriptions = Vec::new();
1798 if mode == EditorMode::Full {
1799 if let Some(project) = project.as_ref() {
1800 if buffer.read(cx).is_singleton() {
1801 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1802 cx.emit(EditorEvent::TitleChanged);
1803 }));
1804 }
1805 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1806 if let project::Event::RefreshInlayHints = event {
1807 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1808 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1809 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1810 let focus_handle = editor.focus_handle(cx);
1811 if focus_handle.is_focused(cx) {
1812 let snapshot = buffer.read(cx).snapshot();
1813 for (range, snippet) in snippet_edits {
1814 let editor_range =
1815 language::range_from_lsp(*range).to_offset(&snapshot);
1816 editor
1817 .insert_snippet(&[editor_range], snippet.clone(), cx)
1818 .ok();
1819 }
1820 }
1821 }
1822 }
1823 }));
1824 let task_inventory = project.read(cx).task_inventory().clone();
1825 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1826 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1827 }));
1828 }
1829 }
1830
1831 let inlay_hint_settings = inlay_hint_settings(
1832 selections.newest_anchor().head(),
1833 &buffer.read(cx).snapshot(cx),
1834 cx,
1835 );
1836 let focus_handle = cx.focus_handle();
1837 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1838 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1839 .detach();
1840 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1841 .detach();
1842 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1843
1844 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1845 Some(false)
1846 } else {
1847 None
1848 };
1849
1850 let mut this = Self {
1851 focus_handle,
1852 show_cursor_when_unfocused: false,
1853 last_focused_descendant: None,
1854 buffer: buffer.clone(),
1855 display_map: display_map.clone(),
1856 selections,
1857 scroll_manager: ScrollManager::new(cx),
1858 columnar_selection_tail: None,
1859 add_selections_state: None,
1860 select_next_state: None,
1861 select_prev_state: None,
1862 selection_history: Default::default(),
1863 autoclose_regions: Default::default(),
1864 snippet_stack: Default::default(),
1865 select_larger_syntax_node_stack: Vec::new(),
1866 ime_transaction: Default::default(),
1867 active_diagnostics: None,
1868 soft_wrap_mode_override,
1869 completion_provider: project.clone().map(|project| Box::new(project) as _),
1870 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1871 project,
1872 blink_manager: blink_manager.clone(),
1873 show_local_selections: true,
1874 mode,
1875 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1876 show_gutter: mode == EditorMode::Full,
1877 show_line_numbers: None,
1878 use_relative_line_numbers: None,
1879 show_git_diff_gutter: None,
1880 show_code_actions: None,
1881 show_runnables: None,
1882 show_wrap_guides: None,
1883 show_indent_guides,
1884 placeholder_text: None,
1885 highlight_order: 0,
1886 highlighted_rows: HashMap::default(),
1887 background_highlights: Default::default(),
1888 gutter_highlights: TreeMap::default(),
1889 scrollbar_marker_state: ScrollbarMarkerState::default(),
1890 active_indent_guides_state: ActiveIndentGuidesState::default(),
1891 nav_history: None,
1892 context_menu: RwLock::new(None),
1893 mouse_context_menu: None,
1894 completion_tasks: Default::default(),
1895 signature_help_state: SignatureHelpState::default(),
1896 auto_signature_help: None,
1897 find_all_references_task_sources: Vec::new(),
1898 next_completion_id: 0,
1899 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1900 next_inlay_id: 0,
1901 available_code_actions: Default::default(),
1902 code_actions_task: Default::default(),
1903 document_highlights_task: Default::default(),
1904 linked_editing_range_task: Default::default(),
1905 pending_rename: Default::default(),
1906 searchable: true,
1907 cursor_shape: EditorSettings::get_global(cx).cursor_shape,
1908 current_line_highlight: None,
1909 autoindent_mode: Some(AutoindentMode::EachLine),
1910 collapse_matches: false,
1911 workspace: None,
1912 input_enabled: true,
1913 use_modal_editing: mode == EditorMode::Full,
1914 read_only: false,
1915 use_autoclose: true,
1916 use_auto_surround: true,
1917 auto_replace_emoji_shortcode: false,
1918 leader_peer_id: None,
1919 remote_id: None,
1920 hover_state: Default::default(),
1921 hovered_link_state: Default::default(),
1922 inline_completion_provider: None,
1923 active_inline_completion: None,
1924 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1925 expanded_hunks: ExpandedHunks::default(),
1926 gutter_hovered: false,
1927 pixel_position_of_newest_cursor: None,
1928 last_bounds: None,
1929 expect_bounds_change: None,
1930 gutter_dimensions: GutterDimensions::default(),
1931 style: None,
1932 show_cursor_names: false,
1933 hovered_cursors: Default::default(),
1934 next_editor_action_id: EditorActionId::default(),
1935 editor_actions: Rc::default(),
1936 show_inline_completions_override: None,
1937 enable_inline_completions: true,
1938 custom_context_menu: None,
1939 show_git_blame_gutter: false,
1940 show_git_blame_inline: false,
1941 show_selection_menu: None,
1942 show_git_blame_inline_delay_task: None,
1943 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1944 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1945 .session
1946 .restore_unsaved_buffers,
1947 blame: None,
1948 blame_subscription: None,
1949 file_header_size,
1950 tasks: Default::default(),
1951 _subscriptions: vec![
1952 cx.observe(&buffer, Self::on_buffer_changed),
1953 cx.subscribe(&buffer, Self::on_buffer_event),
1954 cx.observe(&display_map, Self::on_display_map_changed),
1955 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1956 cx.observe_global::<SettingsStore>(Self::settings_changed),
1957 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1958 cx.observe_window_activation(|editor, cx| {
1959 let active = cx.is_window_active();
1960 editor.blink_manager.update(cx, |blink_manager, cx| {
1961 if active {
1962 blink_manager.enable(cx);
1963 } else {
1964 blink_manager.disable(cx);
1965 }
1966 });
1967 }),
1968 ],
1969 tasks_update_task: None,
1970 linked_edit_ranges: Default::default(),
1971 previous_search_ranges: None,
1972 breadcrumb_header: None,
1973 focused_block: None,
1974 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
1975 addons: HashMap::default(),
1976 _scroll_cursor_center_top_bottom_task: Task::ready(()),
1977 };
1978 this.tasks_update_task = Some(this.refresh_runnables(cx));
1979 this._subscriptions.extend(project_subscriptions);
1980
1981 this.end_selection(cx);
1982 this.scroll_manager.show_scrollbar(cx);
1983
1984 if mode == EditorMode::Full {
1985 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1986 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1987
1988 if this.git_blame_inline_enabled {
1989 this.git_blame_inline_enabled = true;
1990 this.start_git_blame_inline(false, cx);
1991 }
1992 }
1993
1994 this.report_editor_event("open", None, cx);
1995 this
1996 }
1997
1998 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
1999 self.mouse_context_menu
2000 .as_ref()
2001 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
2002 }
2003
2004 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
2005 let mut key_context = KeyContext::new_with_defaults();
2006 key_context.add("Editor");
2007 let mode = match self.mode {
2008 EditorMode::SingleLine { .. } => "single_line",
2009 EditorMode::AutoHeight { .. } => "auto_height",
2010 EditorMode::Full => "full",
2011 };
2012
2013 if EditorSettings::jupyter_enabled(cx) {
2014 key_context.add("jupyter");
2015 }
2016
2017 key_context.set("mode", mode);
2018 if self.pending_rename.is_some() {
2019 key_context.add("renaming");
2020 }
2021 if self.context_menu_visible() {
2022 match self.context_menu.read().as_ref() {
2023 Some(ContextMenu::Completions(_)) => {
2024 key_context.add("menu");
2025 key_context.add("showing_completions")
2026 }
2027 Some(ContextMenu::CodeActions(_)) => {
2028 key_context.add("menu");
2029 key_context.add("showing_code_actions")
2030 }
2031 None => {}
2032 }
2033 }
2034
2035 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2036 if !self.focus_handle(cx).contains_focused(cx)
2037 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2038 {
2039 for addon in self.addons.values() {
2040 addon.extend_key_context(&mut key_context, cx)
2041 }
2042 }
2043
2044 if let Some(extension) = self
2045 .buffer
2046 .read(cx)
2047 .as_singleton()
2048 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2049 {
2050 key_context.set("extension", extension.to_string());
2051 }
2052
2053 if self.has_active_inline_completion(cx) {
2054 key_context.add("copilot_suggestion");
2055 key_context.add("inline_completion");
2056 }
2057
2058 key_context
2059 }
2060
2061 pub fn new_file(
2062 workspace: &mut Workspace,
2063 _: &workspace::NewFile,
2064 cx: &mut ViewContext<Workspace>,
2065 ) {
2066 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2067 "Failed to create buffer",
2068 cx,
2069 |e, _| match e.error_code() {
2070 ErrorCode::RemoteUpgradeRequired => Some(format!(
2071 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2072 e.error_tag("required").unwrap_or("the latest version")
2073 )),
2074 _ => None,
2075 },
2076 );
2077 }
2078
2079 pub fn new_in_workspace(
2080 workspace: &mut Workspace,
2081 cx: &mut ViewContext<Workspace>,
2082 ) -> Task<Result<View<Editor>>> {
2083 let project = workspace.project().clone();
2084 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2085
2086 cx.spawn(|workspace, mut cx| async move {
2087 let buffer = create.await?;
2088 workspace.update(&mut cx, |workspace, cx| {
2089 let editor =
2090 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2091 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2092 editor
2093 })
2094 })
2095 }
2096
2097 fn new_file_vertical(
2098 workspace: &mut Workspace,
2099 _: &workspace::NewFileSplitVertical,
2100 cx: &mut ViewContext<Workspace>,
2101 ) {
2102 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2103 }
2104
2105 fn new_file_horizontal(
2106 workspace: &mut Workspace,
2107 _: &workspace::NewFileSplitHorizontal,
2108 cx: &mut ViewContext<Workspace>,
2109 ) {
2110 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2111 }
2112
2113 fn new_file_in_direction(
2114 workspace: &mut Workspace,
2115 direction: SplitDirection,
2116 cx: &mut ViewContext<Workspace>,
2117 ) {
2118 let project = workspace.project().clone();
2119 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2120
2121 cx.spawn(|workspace, mut cx| async move {
2122 let buffer = create.await?;
2123 workspace.update(&mut cx, move |workspace, cx| {
2124 workspace.split_item(
2125 direction,
2126 Box::new(
2127 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2128 ),
2129 cx,
2130 )
2131 })?;
2132 anyhow::Ok(())
2133 })
2134 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2135 ErrorCode::RemoteUpgradeRequired => Some(format!(
2136 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2137 e.error_tag("required").unwrap_or("the latest version")
2138 )),
2139 _ => None,
2140 });
2141 }
2142
2143 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
2144 self.buffer.read(cx).replica_id()
2145 }
2146
2147 pub fn leader_peer_id(&self) -> Option<PeerId> {
2148 self.leader_peer_id
2149 }
2150
2151 pub fn buffer(&self) -> &Model<MultiBuffer> {
2152 &self.buffer
2153 }
2154
2155 pub fn workspace(&self) -> Option<View<Workspace>> {
2156 self.workspace.as_ref()?.0.upgrade()
2157 }
2158
2159 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2160 self.buffer().read(cx).title(cx)
2161 }
2162
2163 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2164 EditorSnapshot {
2165 mode: self.mode,
2166 show_gutter: self.show_gutter,
2167 show_line_numbers: self.show_line_numbers,
2168 show_git_diff_gutter: self.show_git_diff_gutter,
2169 show_code_actions: self.show_code_actions,
2170 show_runnables: self.show_runnables,
2171 render_git_blame_gutter: self.render_git_blame_gutter(cx),
2172 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2173 scroll_anchor: self.scroll_manager.anchor(),
2174 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2175 placeholder_text: self.placeholder_text.clone(),
2176 is_focused: self.focus_handle.is_focused(cx),
2177 current_line_highlight: self
2178 .current_line_highlight
2179 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2180 gutter_hovered: self.gutter_hovered,
2181 }
2182 }
2183
2184 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2185 self.buffer.read(cx).language_at(point, cx)
2186 }
2187
2188 pub fn file_at<T: ToOffset>(
2189 &self,
2190 point: T,
2191 cx: &AppContext,
2192 ) -> Option<Arc<dyn language::File>> {
2193 self.buffer.read(cx).read(cx).file_at(point).cloned()
2194 }
2195
2196 pub fn active_excerpt(
2197 &self,
2198 cx: &AppContext,
2199 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2200 self.buffer
2201 .read(cx)
2202 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2203 }
2204
2205 pub fn mode(&self) -> EditorMode {
2206 self.mode
2207 }
2208
2209 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2210 self.collaboration_hub.as_deref()
2211 }
2212
2213 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2214 self.collaboration_hub = Some(hub);
2215 }
2216
2217 pub fn set_custom_context_menu(
2218 &mut self,
2219 f: impl 'static
2220 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2221 ) {
2222 self.custom_context_menu = Some(Box::new(f))
2223 }
2224
2225 pub fn set_completion_provider(&mut self, provider: Box<dyn CompletionProvider>) {
2226 self.completion_provider = Some(provider);
2227 }
2228
2229 pub fn set_inline_completion_provider<T>(
2230 &mut self,
2231 provider: Option<Model<T>>,
2232 cx: &mut ViewContext<Self>,
2233 ) where
2234 T: InlineCompletionProvider,
2235 {
2236 self.inline_completion_provider =
2237 provider.map(|provider| RegisteredInlineCompletionProvider {
2238 _subscription: cx.observe(&provider, |this, _, cx| {
2239 if this.focus_handle.is_focused(cx) {
2240 this.update_visible_inline_completion(cx);
2241 }
2242 }),
2243 provider: Arc::new(provider),
2244 });
2245 self.refresh_inline_completion(false, false, cx);
2246 }
2247
2248 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2249 self.placeholder_text.as_deref()
2250 }
2251
2252 pub fn set_placeholder_text(
2253 &mut self,
2254 placeholder_text: impl Into<Arc<str>>,
2255 cx: &mut ViewContext<Self>,
2256 ) {
2257 let placeholder_text = Some(placeholder_text.into());
2258 if self.placeholder_text != placeholder_text {
2259 self.placeholder_text = placeholder_text;
2260 cx.notify();
2261 }
2262 }
2263
2264 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2265 self.cursor_shape = cursor_shape;
2266
2267 // Disrupt blink for immediate user feedback that the cursor shape has changed
2268 self.blink_manager.update(cx, BlinkManager::show_cursor);
2269
2270 cx.notify();
2271 }
2272
2273 pub fn set_current_line_highlight(
2274 &mut self,
2275 current_line_highlight: Option<CurrentLineHighlight>,
2276 ) {
2277 self.current_line_highlight = current_line_highlight;
2278 }
2279
2280 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2281 self.collapse_matches = collapse_matches;
2282 }
2283
2284 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2285 if self.collapse_matches {
2286 return range.start..range.start;
2287 }
2288 range.clone()
2289 }
2290
2291 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2292 if self.display_map.read(cx).clip_at_line_ends != clip {
2293 self.display_map
2294 .update(cx, |map, _| map.clip_at_line_ends = clip);
2295 }
2296 }
2297
2298 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2299 self.input_enabled = input_enabled;
2300 }
2301
2302 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2303 self.enable_inline_completions = enabled;
2304 }
2305
2306 pub fn set_autoindent(&mut self, autoindent: bool) {
2307 if autoindent {
2308 self.autoindent_mode = Some(AutoindentMode::EachLine);
2309 } else {
2310 self.autoindent_mode = None;
2311 }
2312 }
2313
2314 pub fn read_only(&self, cx: &AppContext) -> bool {
2315 self.read_only || self.buffer.read(cx).read_only()
2316 }
2317
2318 pub fn set_read_only(&mut self, read_only: bool) {
2319 self.read_only = read_only;
2320 }
2321
2322 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2323 self.use_autoclose = autoclose;
2324 }
2325
2326 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2327 self.use_auto_surround = auto_surround;
2328 }
2329
2330 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2331 self.auto_replace_emoji_shortcode = auto_replace;
2332 }
2333
2334 pub fn toggle_inline_completions(
2335 &mut self,
2336 _: &ToggleInlineCompletions,
2337 cx: &mut ViewContext<Self>,
2338 ) {
2339 if self.show_inline_completions_override.is_some() {
2340 self.set_show_inline_completions(None, cx);
2341 } else {
2342 let cursor = self.selections.newest_anchor().head();
2343 if let Some((buffer, cursor_buffer_position)) =
2344 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2345 {
2346 let show_inline_completions =
2347 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2348 self.set_show_inline_completions(Some(show_inline_completions), cx);
2349 }
2350 }
2351 }
2352
2353 pub fn set_show_inline_completions(
2354 &mut self,
2355 show_inline_completions: Option<bool>,
2356 cx: &mut ViewContext<Self>,
2357 ) {
2358 self.show_inline_completions_override = show_inline_completions;
2359 self.refresh_inline_completion(false, true, cx);
2360 }
2361
2362 fn should_show_inline_completions(
2363 &self,
2364 buffer: &Model<Buffer>,
2365 buffer_position: language::Anchor,
2366 cx: &AppContext,
2367 ) -> bool {
2368 if let Some(provider) = self.inline_completion_provider() {
2369 if let Some(show_inline_completions) = self.show_inline_completions_override {
2370 show_inline_completions
2371 } else {
2372 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2373 }
2374 } else {
2375 false
2376 }
2377 }
2378
2379 pub fn set_use_modal_editing(&mut self, to: bool) {
2380 self.use_modal_editing = to;
2381 }
2382
2383 pub fn use_modal_editing(&self) -> bool {
2384 self.use_modal_editing
2385 }
2386
2387 fn selections_did_change(
2388 &mut self,
2389 local: bool,
2390 old_cursor_position: &Anchor,
2391 show_completions: bool,
2392 cx: &mut ViewContext<Self>,
2393 ) {
2394 cx.invalidate_character_coordinates();
2395
2396 // Copy selections to primary selection buffer
2397 #[cfg(target_os = "linux")]
2398 if local {
2399 let selections = self.selections.all::<usize>(cx);
2400 let buffer_handle = self.buffer.read(cx).read(cx);
2401
2402 let mut text = String::new();
2403 for (index, selection) in selections.iter().enumerate() {
2404 let text_for_selection = buffer_handle
2405 .text_for_range(selection.start..selection.end)
2406 .collect::<String>();
2407
2408 text.push_str(&text_for_selection);
2409 if index != selections.len() - 1 {
2410 text.push('\n');
2411 }
2412 }
2413
2414 if !text.is_empty() {
2415 cx.write_to_primary(ClipboardItem::new_string(text));
2416 }
2417 }
2418
2419 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2420 self.buffer.update(cx, |buffer, cx| {
2421 buffer.set_active_selections(
2422 &self.selections.disjoint_anchors(),
2423 self.selections.line_mode,
2424 self.cursor_shape,
2425 cx,
2426 )
2427 });
2428 }
2429 let display_map = self
2430 .display_map
2431 .update(cx, |display_map, cx| display_map.snapshot(cx));
2432 let buffer = &display_map.buffer_snapshot;
2433 self.add_selections_state = None;
2434 self.select_next_state = None;
2435 self.select_prev_state = None;
2436 self.select_larger_syntax_node_stack.clear();
2437 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2438 self.snippet_stack
2439 .invalidate(&self.selections.disjoint_anchors(), buffer);
2440 self.take_rename(false, cx);
2441
2442 let new_cursor_position = self.selections.newest_anchor().head();
2443
2444 self.push_to_nav_history(
2445 *old_cursor_position,
2446 Some(new_cursor_position.to_point(buffer)),
2447 cx,
2448 );
2449
2450 if local {
2451 let new_cursor_position = self.selections.newest_anchor().head();
2452 let mut context_menu = self.context_menu.write();
2453 let completion_menu = match context_menu.as_ref() {
2454 Some(ContextMenu::Completions(menu)) => Some(menu),
2455
2456 _ => {
2457 *context_menu = None;
2458 None
2459 }
2460 };
2461
2462 if let Some(completion_menu) = completion_menu {
2463 let cursor_position = new_cursor_position.to_offset(buffer);
2464 let (word_range, kind) =
2465 buffer.surrounding_word(completion_menu.initial_position, true);
2466 if kind == Some(CharKind::Word)
2467 && word_range.to_inclusive().contains(&cursor_position)
2468 {
2469 let mut completion_menu = completion_menu.clone();
2470 drop(context_menu);
2471
2472 let query = Self::completion_query(buffer, cursor_position);
2473 cx.spawn(move |this, mut cx| async move {
2474 completion_menu
2475 .filter(query.as_deref(), cx.background_executor().clone())
2476 .await;
2477
2478 this.update(&mut cx, |this, cx| {
2479 let mut context_menu = this.context_menu.write();
2480 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2481 return;
2482 };
2483
2484 if menu.id > completion_menu.id {
2485 return;
2486 }
2487
2488 *context_menu = Some(ContextMenu::Completions(completion_menu));
2489 drop(context_menu);
2490 cx.notify();
2491 })
2492 })
2493 .detach();
2494
2495 if show_completions {
2496 self.show_completions(&ShowCompletions { trigger: None }, cx);
2497 }
2498 } else {
2499 drop(context_menu);
2500 self.hide_context_menu(cx);
2501 }
2502 } else {
2503 drop(context_menu);
2504 }
2505
2506 hide_hover(self, cx);
2507
2508 if old_cursor_position.to_display_point(&display_map).row()
2509 != new_cursor_position.to_display_point(&display_map).row()
2510 {
2511 self.available_code_actions.take();
2512 }
2513 self.refresh_code_actions(cx);
2514 self.refresh_document_highlights(cx);
2515 refresh_matching_bracket_highlights(self, cx);
2516 self.discard_inline_completion(false, cx);
2517 linked_editing_ranges::refresh_linked_ranges(self, cx);
2518 if self.git_blame_inline_enabled {
2519 self.start_inline_blame_timer(cx);
2520 }
2521 }
2522
2523 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2524 cx.emit(EditorEvent::SelectionsChanged { local });
2525
2526 if self.selections.disjoint_anchors().len() == 1 {
2527 cx.emit(SearchEvent::ActiveMatchChanged)
2528 }
2529 cx.notify();
2530 }
2531
2532 pub fn change_selections<R>(
2533 &mut self,
2534 autoscroll: Option<Autoscroll>,
2535 cx: &mut ViewContext<Self>,
2536 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2537 ) -> R {
2538 self.change_selections_inner(autoscroll, true, cx, change)
2539 }
2540
2541 pub fn change_selections_inner<R>(
2542 &mut self,
2543 autoscroll: Option<Autoscroll>,
2544 request_completions: bool,
2545 cx: &mut ViewContext<Self>,
2546 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2547 ) -> R {
2548 let old_cursor_position = self.selections.newest_anchor().head();
2549 self.push_to_selection_history();
2550
2551 let (changed, result) = self.selections.change_with(cx, change);
2552
2553 if changed {
2554 if let Some(autoscroll) = autoscroll {
2555 self.request_autoscroll(autoscroll, cx);
2556 }
2557 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2558
2559 if self.should_open_signature_help_automatically(
2560 &old_cursor_position,
2561 self.signature_help_state.backspace_pressed(),
2562 cx,
2563 ) {
2564 self.show_signature_help(&ShowSignatureHelp, cx);
2565 }
2566 self.signature_help_state.set_backspace_pressed(false);
2567 }
2568
2569 result
2570 }
2571
2572 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2573 where
2574 I: IntoIterator<Item = (Range<S>, T)>,
2575 S: ToOffset,
2576 T: Into<Arc<str>>,
2577 {
2578 if self.read_only(cx) {
2579 return;
2580 }
2581
2582 self.buffer
2583 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2584 }
2585
2586 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2587 where
2588 I: IntoIterator<Item = (Range<S>, T)>,
2589 S: ToOffset,
2590 T: Into<Arc<str>>,
2591 {
2592 if self.read_only(cx) {
2593 return;
2594 }
2595
2596 self.buffer.update(cx, |buffer, cx| {
2597 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2598 });
2599 }
2600
2601 pub fn edit_with_block_indent<I, S, T>(
2602 &mut self,
2603 edits: I,
2604 original_indent_columns: Vec<u32>,
2605 cx: &mut ViewContext<Self>,
2606 ) where
2607 I: IntoIterator<Item = (Range<S>, T)>,
2608 S: ToOffset,
2609 T: Into<Arc<str>>,
2610 {
2611 if self.read_only(cx) {
2612 return;
2613 }
2614
2615 self.buffer.update(cx, |buffer, cx| {
2616 buffer.edit(
2617 edits,
2618 Some(AutoindentMode::Block {
2619 original_indent_columns,
2620 }),
2621 cx,
2622 )
2623 });
2624 }
2625
2626 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2627 self.hide_context_menu(cx);
2628
2629 match phase {
2630 SelectPhase::Begin {
2631 position,
2632 add,
2633 click_count,
2634 } => self.begin_selection(position, add, click_count, cx),
2635 SelectPhase::BeginColumnar {
2636 position,
2637 goal_column,
2638 reset,
2639 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2640 SelectPhase::Extend {
2641 position,
2642 click_count,
2643 } => self.extend_selection(position, click_count, cx),
2644 SelectPhase::Update {
2645 position,
2646 goal_column,
2647 scroll_delta,
2648 } => self.update_selection(position, goal_column, scroll_delta, cx),
2649 SelectPhase::End => self.end_selection(cx),
2650 }
2651 }
2652
2653 fn extend_selection(
2654 &mut self,
2655 position: DisplayPoint,
2656 click_count: usize,
2657 cx: &mut ViewContext<Self>,
2658 ) {
2659 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2660 let tail = self.selections.newest::<usize>(cx).tail();
2661 self.begin_selection(position, false, click_count, cx);
2662
2663 let position = position.to_offset(&display_map, Bias::Left);
2664 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2665
2666 let mut pending_selection = self
2667 .selections
2668 .pending_anchor()
2669 .expect("extend_selection not called with pending selection");
2670 if position >= tail {
2671 pending_selection.start = tail_anchor;
2672 } else {
2673 pending_selection.end = tail_anchor;
2674 pending_selection.reversed = true;
2675 }
2676
2677 let mut pending_mode = self.selections.pending_mode().unwrap();
2678 match &mut pending_mode {
2679 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2680 _ => {}
2681 }
2682
2683 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2684 s.set_pending(pending_selection, pending_mode)
2685 });
2686 }
2687
2688 fn begin_selection(
2689 &mut self,
2690 position: DisplayPoint,
2691 add: bool,
2692 click_count: usize,
2693 cx: &mut ViewContext<Self>,
2694 ) {
2695 if !self.focus_handle.is_focused(cx) {
2696 self.last_focused_descendant = None;
2697 cx.focus(&self.focus_handle);
2698 }
2699
2700 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2701 let buffer = &display_map.buffer_snapshot;
2702 let newest_selection = self.selections.newest_anchor().clone();
2703 let position = display_map.clip_point(position, Bias::Left);
2704
2705 let start;
2706 let end;
2707 let mode;
2708 let auto_scroll;
2709 match click_count {
2710 1 => {
2711 start = buffer.anchor_before(position.to_point(&display_map));
2712 end = start;
2713 mode = SelectMode::Character;
2714 auto_scroll = true;
2715 }
2716 2 => {
2717 let range = movement::surrounding_word(&display_map, position);
2718 start = buffer.anchor_before(range.start.to_point(&display_map));
2719 end = buffer.anchor_before(range.end.to_point(&display_map));
2720 mode = SelectMode::Word(start..end);
2721 auto_scroll = true;
2722 }
2723 3 => {
2724 let position = display_map
2725 .clip_point(position, Bias::Left)
2726 .to_point(&display_map);
2727 let line_start = display_map.prev_line_boundary(position).0;
2728 let next_line_start = buffer.clip_point(
2729 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2730 Bias::Left,
2731 );
2732 start = buffer.anchor_before(line_start);
2733 end = buffer.anchor_before(next_line_start);
2734 mode = SelectMode::Line(start..end);
2735 auto_scroll = true;
2736 }
2737 _ => {
2738 start = buffer.anchor_before(0);
2739 end = buffer.anchor_before(buffer.len());
2740 mode = SelectMode::All;
2741 auto_scroll = false;
2742 }
2743 }
2744
2745 let point_to_delete: Option<usize> = {
2746 let selected_points: Vec<Selection<Point>> =
2747 self.selections.disjoint_in_range(start..end, cx);
2748
2749 if !add || click_count > 1 {
2750 None
2751 } else if !selected_points.is_empty() {
2752 Some(selected_points[0].id)
2753 } else {
2754 let clicked_point_already_selected =
2755 self.selections.disjoint.iter().find(|selection| {
2756 selection.start.to_point(buffer) == start.to_point(buffer)
2757 || selection.end.to_point(buffer) == end.to_point(buffer)
2758 });
2759
2760 clicked_point_already_selected.map(|selection| selection.id)
2761 }
2762 };
2763
2764 let selections_count = self.selections.count();
2765
2766 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2767 if let Some(point_to_delete) = point_to_delete {
2768 s.delete(point_to_delete);
2769
2770 if selections_count == 1 {
2771 s.set_pending_anchor_range(start..end, mode);
2772 }
2773 } else {
2774 if !add {
2775 s.clear_disjoint();
2776 } else if click_count > 1 {
2777 s.delete(newest_selection.id)
2778 }
2779
2780 s.set_pending_anchor_range(start..end, mode);
2781 }
2782 });
2783 }
2784
2785 fn begin_columnar_selection(
2786 &mut self,
2787 position: DisplayPoint,
2788 goal_column: u32,
2789 reset: bool,
2790 cx: &mut ViewContext<Self>,
2791 ) {
2792 if !self.focus_handle.is_focused(cx) {
2793 self.last_focused_descendant = None;
2794 cx.focus(&self.focus_handle);
2795 }
2796
2797 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2798
2799 if reset {
2800 let pointer_position = display_map
2801 .buffer_snapshot
2802 .anchor_before(position.to_point(&display_map));
2803
2804 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2805 s.clear_disjoint();
2806 s.set_pending_anchor_range(
2807 pointer_position..pointer_position,
2808 SelectMode::Character,
2809 );
2810 });
2811 }
2812
2813 let tail = self.selections.newest::<Point>(cx).tail();
2814 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2815
2816 if !reset {
2817 self.select_columns(
2818 tail.to_display_point(&display_map),
2819 position,
2820 goal_column,
2821 &display_map,
2822 cx,
2823 );
2824 }
2825 }
2826
2827 fn update_selection(
2828 &mut self,
2829 position: DisplayPoint,
2830 goal_column: u32,
2831 scroll_delta: gpui::Point<f32>,
2832 cx: &mut ViewContext<Self>,
2833 ) {
2834 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2835
2836 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2837 let tail = tail.to_display_point(&display_map);
2838 self.select_columns(tail, position, goal_column, &display_map, cx);
2839 } else if let Some(mut pending) = self.selections.pending_anchor() {
2840 let buffer = self.buffer.read(cx).snapshot(cx);
2841 let head;
2842 let tail;
2843 let mode = self.selections.pending_mode().unwrap();
2844 match &mode {
2845 SelectMode::Character => {
2846 head = position.to_point(&display_map);
2847 tail = pending.tail().to_point(&buffer);
2848 }
2849 SelectMode::Word(original_range) => {
2850 let original_display_range = original_range.start.to_display_point(&display_map)
2851 ..original_range.end.to_display_point(&display_map);
2852 let original_buffer_range = original_display_range.start.to_point(&display_map)
2853 ..original_display_range.end.to_point(&display_map);
2854 if movement::is_inside_word(&display_map, position)
2855 || original_display_range.contains(&position)
2856 {
2857 let word_range = movement::surrounding_word(&display_map, position);
2858 if word_range.start < original_display_range.start {
2859 head = word_range.start.to_point(&display_map);
2860 } else {
2861 head = word_range.end.to_point(&display_map);
2862 }
2863 } else {
2864 head = position.to_point(&display_map);
2865 }
2866
2867 if head <= original_buffer_range.start {
2868 tail = original_buffer_range.end;
2869 } else {
2870 tail = original_buffer_range.start;
2871 }
2872 }
2873 SelectMode::Line(original_range) => {
2874 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2875
2876 let position = display_map
2877 .clip_point(position, Bias::Left)
2878 .to_point(&display_map);
2879 let line_start = display_map.prev_line_boundary(position).0;
2880 let next_line_start = buffer.clip_point(
2881 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2882 Bias::Left,
2883 );
2884
2885 if line_start < original_range.start {
2886 head = line_start
2887 } else {
2888 head = next_line_start
2889 }
2890
2891 if head <= original_range.start {
2892 tail = original_range.end;
2893 } else {
2894 tail = original_range.start;
2895 }
2896 }
2897 SelectMode::All => {
2898 return;
2899 }
2900 };
2901
2902 if head < tail {
2903 pending.start = buffer.anchor_before(head);
2904 pending.end = buffer.anchor_before(tail);
2905 pending.reversed = true;
2906 } else {
2907 pending.start = buffer.anchor_before(tail);
2908 pending.end = buffer.anchor_before(head);
2909 pending.reversed = false;
2910 }
2911
2912 self.change_selections(None, cx, |s| {
2913 s.set_pending(pending, mode);
2914 });
2915 } else {
2916 log::error!("update_selection dispatched with no pending selection");
2917 return;
2918 }
2919
2920 self.apply_scroll_delta(scroll_delta, cx);
2921 cx.notify();
2922 }
2923
2924 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2925 self.columnar_selection_tail.take();
2926 if self.selections.pending_anchor().is_some() {
2927 let selections = self.selections.all::<usize>(cx);
2928 self.change_selections(None, cx, |s| {
2929 s.select(selections);
2930 s.clear_pending();
2931 });
2932 }
2933 }
2934
2935 fn select_columns(
2936 &mut self,
2937 tail: DisplayPoint,
2938 head: DisplayPoint,
2939 goal_column: u32,
2940 display_map: &DisplaySnapshot,
2941 cx: &mut ViewContext<Self>,
2942 ) {
2943 let start_row = cmp::min(tail.row(), head.row());
2944 let end_row = cmp::max(tail.row(), head.row());
2945 let start_column = cmp::min(tail.column(), goal_column);
2946 let end_column = cmp::max(tail.column(), goal_column);
2947 let reversed = start_column < tail.column();
2948
2949 let selection_ranges = (start_row.0..=end_row.0)
2950 .map(DisplayRow)
2951 .filter_map(|row| {
2952 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2953 let start = display_map
2954 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2955 .to_point(display_map);
2956 let end = display_map
2957 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2958 .to_point(display_map);
2959 if reversed {
2960 Some(end..start)
2961 } else {
2962 Some(start..end)
2963 }
2964 } else {
2965 None
2966 }
2967 })
2968 .collect::<Vec<_>>();
2969
2970 self.change_selections(None, cx, |s| {
2971 s.select_ranges(selection_ranges);
2972 });
2973 cx.notify();
2974 }
2975
2976 pub fn has_pending_nonempty_selection(&self) -> bool {
2977 let pending_nonempty_selection = match self.selections.pending_anchor() {
2978 Some(Selection { start, end, .. }) => start != end,
2979 None => false,
2980 };
2981
2982 pending_nonempty_selection
2983 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2984 }
2985
2986 pub fn has_pending_selection(&self) -> bool {
2987 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2988 }
2989
2990 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2991 if self.clear_clicked_diff_hunks(cx) {
2992 cx.notify();
2993 return;
2994 }
2995 if self.dismiss_menus_and_popups(true, cx) {
2996 return;
2997 }
2998
2999 if self.mode == EditorMode::Full
3000 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3001 {
3002 return;
3003 }
3004
3005 cx.propagate();
3006 }
3007
3008 pub fn dismiss_menus_and_popups(
3009 &mut self,
3010 should_report_inline_completion_event: bool,
3011 cx: &mut ViewContext<Self>,
3012 ) -> bool {
3013 if self.take_rename(false, cx).is_some() {
3014 return true;
3015 }
3016
3017 if hide_hover(self, cx) {
3018 return true;
3019 }
3020
3021 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3022 return true;
3023 }
3024
3025 if self.hide_context_menu(cx).is_some() {
3026 return true;
3027 }
3028
3029 if self.mouse_context_menu.take().is_some() {
3030 return true;
3031 }
3032
3033 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3034 return true;
3035 }
3036
3037 if self.snippet_stack.pop().is_some() {
3038 return true;
3039 }
3040
3041 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3042 self.dismiss_diagnostics(cx);
3043 return true;
3044 }
3045
3046 false
3047 }
3048
3049 fn linked_editing_ranges_for(
3050 &self,
3051 selection: Range<text::Anchor>,
3052 cx: &AppContext,
3053 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3054 if self.linked_edit_ranges.is_empty() {
3055 return None;
3056 }
3057 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3058 selection.end.buffer_id.and_then(|end_buffer_id| {
3059 if selection.start.buffer_id != Some(end_buffer_id) {
3060 return None;
3061 }
3062 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3063 let snapshot = buffer.read(cx).snapshot();
3064 self.linked_edit_ranges
3065 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3066 .map(|ranges| (ranges, snapshot, buffer))
3067 })?;
3068 use text::ToOffset as TO;
3069 // find offset from the start of current range to current cursor position
3070 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3071
3072 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3073 let start_difference = start_offset - start_byte_offset;
3074 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3075 let end_difference = end_offset - start_byte_offset;
3076 // Current range has associated linked ranges.
3077 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3078 for range in linked_ranges.iter() {
3079 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3080 let end_offset = start_offset + end_difference;
3081 let start_offset = start_offset + start_difference;
3082 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3083 continue;
3084 }
3085 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3086 if s.start.buffer_id != selection.start.buffer_id
3087 || s.end.buffer_id != selection.end.buffer_id
3088 {
3089 return false;
3090 }
3091 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3092 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3093 }) {
3094 continue;
3095 }
3096 let start = buffer_snapshot.anchor_after(start_offset);
3097 let end = buffer_snapshot.anchor_after(end_offset);
3098 linked_edits
3099 .entry(buffer.clone())
3100 .or_default()
3101 .push(start..end);
3102 }
3103 Some(linked_edits)
3104 }
3105
3106 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3107 let text: Arc<str> = text.into();
3108
3109 if self.read_only(cx) {
3110 return;
3111 }
3112
3113 let selections = self.selections.all_adjusted(cx);
3114 let mut bracket_inserted = false;
3115 let mut edits = Vec::new();
3116 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3117 let mut new_selections = Vec::with_capacity(selections.len());
3118 let mut new_autoclose_regions = Vec::new();
3119 let snapshot = self.buffer.read(cx).read(cx);
3120
3121 for (selection, autoclose_region) in
3122 self.selections_with_autoclose_regions(selections, &snapshot)
3123 {
3124 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3125 // Determine if the inserted text matches the opening or closing
3126 // bracket of any of this language's bracket pairs.
3127 let mut bracket_pair = None;
3128 let mut is_bracket_pair_start = false;
3129 let mut is_bracket_pair_end = false;
3130 if !text.is_empty() {
3131 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3132 // and they are removing the character that triggered IME popup.
3133 for (pair, enabled) in scope.brackets() {
3134 if !pair.close && !pair.surround {
3135 continue;
3136 }
3137
3138 if enabled && pair.start.ends_with(text.as_ref()) {
3139 bracket_pair = Some(pair.clone());
3140 is_bracket_pair_start = true;
3141 break;
3142 }
3143 if pair.end.as_str() == text.as_ref() {
3144 bracket_pair = Some(pair.clone());
3145 is_bracket_pair_end = true;
3146 break;
3147 }
3148 }
3149 }
3150
3151 if let Some(bracket_pair) = bracket_pair {
3152 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3153 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3154 let auto_surround =
3155 self.use_auto_surround && snapshot_settings.use_auto_surround;
3156 if selection.is_empty() {
3157 if is_bracket_pair_start {
3158 let prefix_len = bracket_pair.start.len() - text.len();
3159
3160 // If the inserted text is a suffix of an opening bracket and the
3161 // selection is preceded by the rest of the opening bracket, then
3162 // insert the closing bracket.
3163 let following_text_allows_autoclose = snapshot
3164 .chars_at(selection.start)
3165 .next()
3166 .map_or(true, |c| scope.should_autoclose_before(c));
3167 let preceding_text_matches_prefix = prefix_len == 0
3168 || (selection.start.column >= (prefix_len as u32)
3169 && snapshot.contains_str_at(
3170 Point::new(
3171 selection.start.row,
3172 selection.start.column - (prefix_len as u32),
3173 ),
3174 &bracket_pair.start[..prefix_len],
3175 ));
3176
3177 if autoclose
3178 && bracket_pair.close
3179 && following_text_allows_autoclose
3180 && preceding_text_matches_prefix
3181 {
3182 let anchor = snapshot.anchor_before(selection.end);
3183 new_selections.push((selection.map(|_| anchor), text.len()));
3184 new_autoclose_regions.push((
3185 anchor,
3186 text.len(),
3187 selection.id,
3188 bracket_pair.clone(),
3189 ));
3190 edits.push((
3191 selection.range(),
3192 format!("{}{}", text, bracket_pair.end).into(),
3193 ));
3194 bracket_inserted = true;
3195 continue;
3196 }
3197 }
3198
3199 if let Some(region) = autoclose_region {
3200 // If the selection is followed by an auto-inserted closing bracket,
3201 // then don't insert that closing bracket again; just move the selection
3202 // past the closing bracket.
3203 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3204 && text.as_ref() == region.pair.end.as_str();
3205 if should_skip {
3206 let anchor = snapshot.anchor_after(selection.end);
3207 new_selections
3208 .push((selection.map(|_| anchor), region.pair.end.len()));
3209 continue;
3210 }
3211 }
3212
3213 let always_treat_brackets_as_autoclosed = snapshot
3214 .settings_at(selection.start, cx)
3215 .always_treat_brackets_as_autoclosed;
3216 if always_treat_brackets_as_autoclosed
3217 && is_bracket_pair_end
3218 && snapshot.contains_str_at(selection.end, text.as_ref())
3219 {
3220 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3221 // and the inserted text is a closing bracket and the selection is followed
3222 // by the closing bracket then move the selection past the closing bracket.
3223 let anchor = snapshot.anchor_after(selection.end);
3224 new_selections.push((selection.map(|_| anchor), text.len()));
3225 continue;
3226 }
3227 }
3228 // If an opening bracket is 1 character long and is typed while
3229 // text is selected, then surround that text with the bracket pair.
3230 else if auto_surround
3231 && bracket_pair.surround
3232 && is_bracket_pair_start
3233 && bracket_pair.start.chars().count() == 1
3234 {
3235 edits.push((selection.start..selection.start, text.clone()));
3236 edits.push((
3237 selection.end..selection.end,
3238 bracket_pair.end.as_str().into(),
3239 ));
3240 bracket_inserted = true;
3241 new_selections.push((
3242 Selection {
3243 id: selection.id,
3244 start: snapshot.anchor_after(selection.start),
3245 end: snapshot.anchor_before(selection.end),
3246 reversed: selection.reversed,
3247 goal: selection.goal,
3248 },
3249 0,
3250 ));
3251 continue;
3252 }
3253 }
3254 }
3255
3256 if self.auto_replace_emoji_shortcode
3257 && selection.is_empty()
3258 && text.as_ref().ends_with(':')
3259 {
3260 if let Some(possible_emoji_short_code) =
3261 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3262 {
3263 if !possible_emoji_short_code.is_empty() {
3264 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3265 let emoji_shortcode_start = Point::new(
3266 selection.start.row,
3267 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3268 );
3269
3270 // Remove shortcode from buffer
3271 edits.push((
3272 emoji_shortcode_start..selection.start,
3273 "".to_string().into(),
3274 ));
3275 new_selections.push((
3276 Selection {
3277 id: selection.id,
3278 start: snapshot.anchor_after(emoji_shortcode_start),
3279 end: snapshot.anchor_before(selection.start),
3280 reversed: selection.reversed,
3281 goal: selection.goal,
3282 },
3283 0,
3284 ));
3285
3286 // Insert emoji
3287 let selection_start_anchor = snapshot.anchor_after(selection.start);
3288 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3289 edits.push((selection.start..selection.end, emoji.to_string().into()));
3290
3291 continue;
3292 }
3293 }
3294 }
3295 }
3296
3297 // If not handling any auto-close operation, then just replace the selected
3298 // text with the given input and move the selection to the end of the
3299 // newly inserted text.
3300 let anchor = snapshot.anchor_after(selection.end);
3301 if !self.linked_edit_ranges.is_empty() {
3302 let start_anchor = snapshot.anchor_before(selection.start);
3303
3304 let is_word_char = text.chars().next().map_or(true, |char| {
3305 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3306 classifier.is_word(char)
3307 });
3308
3309 if is_word_char {
3310 if let Some(ranges) = self
3311 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3312 {
3313 for (buffer, edits) in ranges {
3314 linked_edits
3315 .entry(buffer.clone())
3316 .or_default()
3317 .extend(edits.into_iter().map(|range| (range, text.clone())));
3318 }
3319 }
3320 }
3321 }
3322
3323 new_selections.push((selection.map(|_| anchor), 0));
3324 edits.push((selection.start..selection.end, text.clone()));
3325 }
3326
3327 drop(snapshot);
3328
3329 self.transact(cx, |this, cx| {
3330 this.buffer.update(cx, |buffer, cx| {
3331 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3332 });
3333 for (buffer, edits) in linked_edits {
3334 buffer.update(cx, |buffer, cx| {
3335 let snapshot = buffer.snapshot();
3336 let edits = edits
3337 .into_iter()
3338 .map(|(range, text)| {
3339 use text::ToPoint as TP;
3340 let end_point = TP::to_point(&range.end, &snapshot);
3341 let start_point = TP::to_point(&range.start, &snapshot);
3342 (start_point..end_point, text)
3343 })
3344 .sorted_by_key(|(range, _)| range.start)
3345 .collect::<Vec<_>>();
3346 buffer.edit(edits, None, cx);
3347 })
3348 }
3349 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3350 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3351 let snapshot = this.buffer.read(cx).read(cx);
3352 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
3353 .zip(new_selection_deltas)
3354 .map(|(selection, delta)| Selection {
3355 id: selection.id,
3356 start: selection.start + delta,
3357 end: selection.end + delta,
3358 reversed: selection.reversed,
3359 goal: SelectionGoal::None,
3360 })
3361 .collect::<Vec<_>>();
3362
3363 let mut i = 0;
3364 for (position, delta, selection_id, pair) in new_autoclose_regions {
3365 let position = position.to_offset(&snapshot) + delta;
3366 let start = snapshot.anchor_before(position);
3367 let end = snapshot.anchor_after(position);
3368 while let Some(existing_state) = this.autoclose_regions.get(i) {
3369 match existing_state.range.start.cmp(&start, &snapshot) {
3370 Ordering::Less => i += 1,
3371 Ordering::Greater => break,
3372 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
3373 Ordering::Less => i += 1,
3374 Ordering::Equal => break,
3375 Ordering::Greater => break,
3376 },
3377 }
3378 }
3379 this.autoclose_regions.insert(
3380 i,
3381 AutocloseRegion {
3382 selection_id,
3383 range: start..end,
3384 pair,
3385 },
3386 );
3387 }
3388
3389 drop(snapshot);
3390 let had_active_inline_completion = this.has_active_inline_completion(cx);
3391 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3392 s.select(new_selections)
3393 });
3394
3395 if !bracket_inserted && EditorSettings::get_global(cx).use_on_type_format {
3396 if let Some(on_type_format_task) =
3397 this.trigger_on_type_formatting(text.to_string(), cx)
3398 {
3399 on_type_format_task.detach_and_log_err(cx);
3400 }
3401 }
3402
3403 let editor_settings = EditorSettings::get_global(cx);
3404 if bracket_inserted
3405 && (editor_settings.auto_signature_help
3406 || editor_settings.show_signature_help_after_edits)
3407 {
3408 this.show_signature_help(&ShowSignatureHelp, cx);
3409 }
3410
3411 let trigger_in_words = !had_active_inline_completion;
3412 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3413 linked_editing_ranges::refresh_linked_ranges(this, cx);
3414 this.refresh_inline_completion(true, false, cx);
3415 });
3416 }
3417
3418 fn find_possible_emoji_shortcode_at_position(
3419 snapshot: &MultiBufferSnapshot,
3420 position: Point,
3421 ) -> Option<String> {
3422 let mut chars = Vec::new();
3423 let mut found_colon = false;
3424 for char in snapshot.reversed_chars_at(position).take(100) {
3425 // Found a possible emoji shortcode in the middle of the buffer
3426 if found_colon {
3427 if char.is_whitespace() {
3428 chars.reverse();
3429 return Some(chars.iter().collect());
3430 }
3431 // If the previous character is not a whitespace, we are in the middle of a word
3432 // and we only want to complete the shortcode if the word is made up of other emojis
3433 let mut containing_word = String::new();
3434 for ch in snapshot
3435 .reversed_chars_at(position)
3436 .skip(chars.len() + 1)
3437 .take(100)
3438 {
3439 if ch.is_whitespace() {
3440 break;
3441 }
3442 containing_word.push(ch);
3443 }
3444 let containing_word = containing_word.chars().rev().collect::<String>();
3445 if util::word_consists_of_emojis(containing_word.as_str()) {
3446 chars.reverse();
3447 return Some(chars.iter().collect());
3448 }
3449 }
3450
3451 if char.is_whitespace() || !char.is_ascii() {
3452 return None;
3453 }
3454 if char == ':' {
3455 found_colon = true;
3456 } else {
3457 chars.push(char);
3458 }
3459 }
3460 // Found a possible emoji shortcode at the beginning of the buffer
3461 chars.reverse();
3462 Some(chars.iter().collect())
3463 }
3464
3465 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3466 self.transact(cx, |this, cx| {
3467 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3468 let selections = this.selections.all::<usize>(cx);
3469 let multi_buffer = this.buffer.read(cx);
3470 let buffer = multi_buffer.snapshot(cx);
3471 selections
3472 .iter()
3473 .map(|selection| {
3474 let start_point = selection.start.to_point(&buffer);
3475 let mut indent =
3476 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3477 indent.len = cmp::min(indent.len, start_point.column);
3478 let start = selection.start;
3479 let end = selection.end;
3480 let selection_is_empty = start == end;
3481 let language_scope = buffer.language_scope_at(start);
3482 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3483 &language_scope
3484 {
3485 let leading_whitespace_len = buffer
3486 .reversed_chars_at(start)
3487 .take_while(|c| c.is_whitespace() && *c != '\n')
3488 .map(|c| c.len_utf8())
3489 .sum::<usize>();
3490
3491 let trailing_whitespace_len = buffer
3492 .chars_at(end)
3493 .take_while(|c| c.is_whitespace() && *c != '\n')
3494 .map(|c| c.len_utf8())
3495 .sum::<usize>();
3496
3497 let insert_extra_newline =
3498 language.brackets().any(|(pair, enabled)| {
3499 let pair_start = pair.start.trim_end();
3500 let pair_end = pair.end.trim_start();
3501
3502 enabled
3503 && pair.newline
3504 && buffer.contains_str_at(
3505 end + trailing_whitespace_len,
3506 pair_end,
3507 )
3508 && buffer.contains_str_at(
3509 (start - leading_whitespace_len)
3510 .saturating_sub(pair_start.len()),
3511 pair_start,
3512 )
3513 });
3514
3515 // Comment extension on newline is allowed only for cursor selections
3516 let comment_delimiter = maybe!({
3517 if !selection_is_empty {
3518 return None;
3519 }
3520
3521 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3522 return None;
3523 }
3524
3525 let delimiters = language.line_comment_prefixes();
3526 let max_len_of_delimiter =
3527 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3528 let (snapshot, range) =
3529 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3530
3531 let mut index_of_first_non_whitespace = 0;
3532 let comment_candidate = snapshot
3533 .chars_for_range(range)
3534 .skip_while(|c| {
3535 let should_skip = c.is_whitespace();
3536 if should_skip {
3537 index_of_first_non_whitespace += 1;
3538 }
3539 should_skip
3540 })
3541 .take(max_len_of_delimiter)
3542 .collect::<String>();
3543 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3544 comment_candidate.starts_with(comment_prefix.as_ref())
3545 })?;
3546 let cursor_is_placed_after_comment_marker =
3547 index_of_first_non_whitespace + comment_prefix.len()
3548 <= start_point.column as usize;
3549 if cursor_is_placed_after_comment_marker {
3550 Some(comment_prefix.clone())
3551 } else {
3552 None
3553 }
3554 });
3555 (comment_delimiter, insert_extra_newline)
3556 } else {
3557 (None, false)
3558 };
3559
3560 let capacity_for_delimiter = comment_delimiter
3561 .as_deref()
3562 .map(str::len)
3563 .unwrap_or_default();
3564 let mut new_text =
3565 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3566 new_text.push('\n');
3567 new_text.extend(indent.chars());
3568 if let Some(delimiter) = &comment_delimiter {
3569 new_text.push_str(delimiter);
3570 }
3571 if insert_extra_newline {
3572 new_text = new_text.repeat(2);
3573 }
3574
3575 let anchor = buffer.anchor_after(end);
3576 let new_selection = selection.map(|_| anchor);
3577 (
3578 (start..end, new_text),
3579 (insert_extra_newline, new_selection),
3580 )
3581 })
3582 .unzip()
3583 };
3584
3585 this.edit_with_autoindent(edits, cx);
3586 let buffer = this.buffer.read(cx).snapshot(cx);
3587 let new_selections = selection_fixup_info
3588 .into_iter()
3589 .map(|(extra_newline_inserted, new_selection)| {
3590 let mut cursor = new_selection.end.to_point(&buffer);
3591 if extra_newline_inserted {
3592 cursor.row -= 1;
3593 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3594 }
3595 new_selection.map(|_| cursor)
3596 })
3597 .collect();
3598
3599 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3600 this.refresh_inline_completion(true, false, cx);
3601 });
3602 }
3603
3604 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3605 let buffer = self.buffer.read(cx);
3606 let snapshot = buffer.snapshot(cx);
3607
3608 let mut edits = Vec::new();
3609 let mut rows = Vec::new();
3610
3611 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3612 let cursor = selection.head();
3613 let row = cursor.row;
3614
3615 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3616
3617 let newline = "\n".to_string();
3618 edits.push((start_of_line..start_of_line, newline));
3619
3620 rows.push(row + rows_inserted as u32);
3621 }
3622
3623 self.transact(cx, |editor, cx| {
3624 editor.edit(edits, cx);
3625
3626 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3627 let mut index = 0;
3628 s.move_cursors_with(|map, _, _| {
3629 let row = rows[index];
3630 index += 1;
3631
3632 let point = Point::new(row, 0);
3633 let boundary = map.next_line_boundary(point).1;
3634 let clipped = map.clip_point(boundary, Bias::Left);
3635
3636 (clipped, SelectionGoal::None)
3637 });
3638 });
3639
3640 let mut indent_edits = Vec::new();
3641 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3642 for row in rows {
3643 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3644 for (row, indent) in indents {
3645 if indent.len == 0 {
3646 continue;
3647 }
3648
3649 let text = match indent.kind {
3650 IndentKind::Space => " ".repeat(indent.len as usize),
3651 IndentKind::Tab => "\t".repeat(indent.len as usize),
3652 };
3653 let point = Point::new(row.0, 0);
3654 indent_edits.push((point..point, text));
3655 }
3656 }
3657 editor.edit(indent_edits, cx);
3658 });
3659 }
3660
3661 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3662 let buffer = self.buffer.read(cx);
3663 let snapshot = buffer.snapshot(cx);
3664
3665 let mut edits = Vec::new();
3666 let mut rows = Vec::new();
3667 let mut rows_inserted = 0;
3668
3669 for selection in self.selections.all_adjusted(cx) {
3670 let cursor = selection.head();
3671 let row = cursor.row;
3672
3673 let point = Point::new(row + 1, 0);
3674 let start_of_line = snapshot.clip_point(point, Bias::Left);
3675
3676 let newline = "\n".to_string();
3677 edits.push((start_of_line..start_of_line, newline));
3678
3679 rows_inserted += 1;
3680 rows.push(row + rows_inserted);
3681 }
3682
3683 self.transact(cx, |editor, cx| {
3684 editor.edit(edits, cx);
3685
3686 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3687 let mut index = 0;
3688 s.move_cursors_with(|map, _, _| {
3689 let row = rows[index];
3690 index += 1;
3691
3692 let point = Point::new(row, 0);
3693 let boundary = map.next_line_boundary(point).1;
3694 let clipped = map.clip_point(boundary, Bias::Left);
3695
3696 (clipped, SelectionGoal::None)
3697 });
3698 });
3699
3700 let mut indent_edits = Vec::new();
3701 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3702 for row in rows {
3703 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3704 for (row, indent) in indents {
3705 if indent.len == 0 {
3706 continue;
3707 }
3708
3709 let text = match indent.kind {
3710 IndentKind::Space => " ".repeat(indent.len as usize),
3711 IndentKind::Tab => "\t".repeat(indent.len as usize),
3712 };
3713 let point = Point::new(row.0, 0);
3714 indent_edits.push((point..point, text));
3715 }
3716 }
3717 editor.edit(indent_edits, cx);
3718 });
3719 }
3720
3721 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3722 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3723 original_indent_columns: Vec::new(),
3724 });
3725 self.insert_with_autoindent_mode(text, autoindent, cx);
3726 }
3727
3728 fn insert_with_autoindent_mode(
3729 &mut self,
3730 text: &str,
3731 autoindent_mode: Option<AutoindentMode>,
3732 cx: &mut ViewContext<Self>,
3733 ) {
3734 if self.read_only(cx) {
3735 return;
3736 }
3737
3738 let text: Arc<str> = text.into();
3739 self.transact(cx, |this, cx| {
3740 let old_selections = this.selections.all_adjusted(cx);
3741 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3742 let anchors = {
3743 let snapshot = buffer.read(cx);
3744 old_selections
3745 .iter()
3746 .map(|s| {
3747 let anchor = snapshot.anchor_after(s.head());
3748 s.map(|_| anchor)
3749 })
3750 .collect::<Vec<_>>()
3751 };
3752 buffer.edit(
3753 old_selections
3754 .iter()
3755 .map(|s| (s.start..s.end, text.clone())),
3756 autoindent_mode,
3757 cx,
3758 );
3759 anchors
3760 });
3761
3762 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3763 s.select_anchors(selection_anchors);
3764 })
3765 });
3766 }
3767
3768 fn trigger_completion_on_input(
3769 &mut self,
3770 text: &str,
3771 trigger_in_words: bool,
3772 cx: &mut ViewContext<Self>,
3773 ) {
3774 if self.is_completion_trigger(text, trigger_in_words, cx) {
3775 self.show_completions(
3776 &ShowCompletions {
3777 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3778 },
3779 cx,
3780 );
3781 } else {
3782 self.hide_context_menu(cx);
3783 }
3784 }
3785
3786 fn is_completion_trigger(
3787 &self,
3788 text: &str,
3789 trigger_in_words: bool,
3790 cx: &mut ViewContext<Self>,
3791 ) -> bool {
3792 let position = self.selections.newest_anchor().head();
3793 let multibuffer = self.buffer.read(cx);
3794 let Some(buffer) = position
3795 .buffer_id
3796 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3797 else {
3798 return false;
3799 };
3800
3801 if let Some(completion_provider) = &self.completion_provider {
3802 completion_provider.is_completion_trigger(
3803 &buffer,
3804 position.text_anchor,
3805 text,
3806 trigger_in_words,
3807 cx,
3808 )
3809 } else {
3810 false
3811 }
3812 }
3813
3814 /// If any empty selections is touching the start of its innermost containing autoclose
3815 /// region, expand it to select the brackets.
3816 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3817 let selections = self.selections.all::<usize>(cx);
3818 let buffer = self.buffer.read(cx).read(cx);
3819 let new_selections = self
3820 .selections_with_autoclose_regions(selections, &buffer)
3821 .map(|(mut selection, region)| {
3822 if !selection.is_empty() {
3823 return selection;
3824 }
3825
3826 if let Some(region) = region {
3827 let mut range = region.range.to_offset(&buffer);
3828 if selection.start == range.start && range.start >= region.pair.start.len() {
3829 range.start -= region.pair.start.len();
3830 if buffer.contains_str_at(range.start, ®ion.pair.start)
3831 && buffer.contains_str_at(range.end, ®ion.pair.end)
3832 {
3833 range.end += region.pair.end.len();
3834 selection.start = range.start;
3835 selection.end = range.end;
3836
3837 return selection;
3838 }
3839 }
3840 }
3841
3842 let always_treat_brackets_as_autoclosed = buffer
3843 .settings_at(selection.start, cx)
3844 .always_treat_brackets_as_autoclosed;
3845
3846 if !always_treat_brackets_as_autoclosed {
3847 return selection;
3848 }
3849
3850 if let Some(scope) = buffer.language_scope_at(selection.start) {
3851 for (pair, enabled) in scope.brackets() {
3852 if !enabled || !pair.close {
3853 continue;
3854 }
3855
3856 if buffer.contains_str_at(selection.start, &pair.end) {
3857 let pair_start_len = pair.start.len();
3858 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3859 {
3860 selection.start -= pair_start_len;
3861 selection.end += pair.end.len();
3862
3863 return selection;
3864 }
3865 }
3866 }
3867 }
3868
3869 selection
3870 })
3871 .collect();
3872
3873 drop(buffer);
3874 self.change_selections(None, cx, |selections| selections.select(new_selections));
3875 }
3876
3877 /// Iterate the given selections, and for each one, find the smallest surrounding
3878 /// autoclose region. This uses the ordering of the selections and the autoclose
3879 /// regions to avoid repeated comparisons.
3880 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3881 &'a self,
3882 selections: impl IntoIterator<Item = Selection<D>>,
3883 buffer: &'a MultiBufferSnapshot,
3884 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3885 let mut i = 0;
3886 let mut regions = self.autoclose_regions.as_slice();
3887 selections.into_iter().map(move |selection| {
3888 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3889
3890 let mut enclosing = None;
3891 while let Some(pair_state) = regions.get(i) {
3892 if pair_state.range.end.to_offset(buffer) < range.start {
3893 regions = ®ions[i + 1..];
3894 i = 0;
3895 } else if pair_state.range.start.to_offset(buffer) > range.end {
3896 break;
3897 } else {
3898 if pair_state.selection_id == selection.id {
3899 enclosing = Some(pair_state);
3900 }
3901 i += 1;
3902 }
3903 }
3904
3905 (selection.clone(), enclosing)
3906 })
3907 }
3908
3909 /// Remove any autoclose regions that no longer contain their selection.
3910 fn invalidate_autoclose_regions(
3911 &mut self,
3912 mut selections: &[Selection<Anchor>],
3913 buffer: &MultiBufferSnapshot,
3914 ) {
3915 self.autoclose_regions.retain(|state| {
3916 let mut i = 0;
3917 while let Some(selection) = selections.get(i) {
3918 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3919 selections = &selections[1..];
3920 continue;
3921 }
3922 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3923 break;
3924 }
3925 if selection.id == state.selection_id {
3926 return true;
3927 } else {
3928 i += 1;
3929 }
3930 }
3931 false
3932 });
3933 }
3934
3935 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3936 let offset = position.to_offset(buffer);
3937 let (word_range, kind) = buffer.surrounding_word(offset, true);
3938 if offset > word_range.start && kind == Some(CharKind::Word) {
3939 Some(
3940 buffer
3941 .text_for_range(word_range.start..offset)
3942 .collect::<String>(),
3943 )
3944 } else {
3945 None
3946 }
3947 }
3948
3949 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3950 self.refresh_inlay_hints(
3951 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3952 cx,
3953 );
3954 }
3955
3956 pub fn inlay_hints_enabled(&self) -> bool {
3957 self.inlay_hint_cache.enabled
3958 }
3959
3960 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3961 if self.project.is_none() || self.mode != EditorMode::Full {
3962 return;
3963 }
3964
3965 let reason_description = reason.description();
3966 let ignore_debounce = matches!(
3967 reason,
3968 InlayHintRefreshReason::SettingsChange(_)
3969 | InlayHintRefreshReason::Toggle(_)
3970 | InlayHintRefreshReason::ExcerptsRemoved(_)
3971 );
3972 let (invalidate_cache, required_languages) = match reason {
3973 InlayHintRefreshReason::Toggle(enabled) => {
3974 self.inlay_hint_cache.enabled = enabled;
3975 if enabled {
3976 (InvalidationStrategy::RefreshRequested, None)
3977 } else {
3978 self.inlay_hint_cache.clear();
3979 self.splice_inlays(
3980 self.visible_inlay_hints(cx)
3981 .iter()
3982 .map(|inlay| inlay.id)
3983 .collect(),
3984 Vec::new(),
3985 cx,
3986 );
3987 return;
3988 }
3989 }
3990 InlayHintRefreshReason::SettingsChange(new_settings) => {
3991 match self.inlay_hint_cache.update_settings(
3992 &self.buffer,
3993 new_settings,
3994 self.visible_inlay_hints(cx),
3995 cx,
3996 ) {
3997 ControlFlow::Break(Some(InlaySplice {
3998 to_remove,
3999 to_insert,
4000 })) => {
4001 self.splice_inlays(to_remove, to_insert, cx);
4002 return;
4003 }
4004 ControlFlow::Break(None) => return,
4005 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4006 }
4007 }
4008 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4009 if let Some(InlaySplice {
4010 to_remove,
4011 to_insert,
4012 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4013 {
4014 self.splice_inlays(to_remove, to_insert, cx);
4015 }
4016 return;
4017 }
4018 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4019 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4020 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4021 }
4022 InlayHintRefreshReason::RefreshRequested => {
4023 (InvalidationStrategy::RefreshRequested, None)
4024 }
4025 };
4026
4027 if let Some(InlaySplice {
4028 to_remove,
4029 to_insert,
4030 }) = self.inlay_hint_cache.spawn_hint_refresh(
4031 reason_description,
4032 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4033 invalidate_cache,
4034 ignore_debounce,
4035 cx,
4036 ) {
4037 self.splice_inlays(to_remove, to_insert, cx);
4038 }
4039 }
4040
4041 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4042 self.display_map
4043 .read(cx)
4044 .current_inlays()
4045 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4046 .cloned()
4047 .collect()
4048 }
4049
4050 pub fn excerpts_for_inlay_hints_query(
4051 &self,
4052 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4053 cx: &mut ViewContext<Editor>,
4054 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4055 let Some(project) = self.project.as_ref() else {
4056 return HashMap::default();
4057 };
4058 let project = project.read(cx);
4059 let multi_buffer = self.buffer().read(cx);
4060 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4061 let multi_buffer_visible_start = self
4062 .scroll_manager
4063 .anchor()
4064 .anchor
4065 .to_point(&multi_buffer_snapshot);
4066 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4067 multi_buffer_visible_start
4068 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4069 Bias::Left,
4070 );
4071 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4072 multi_buffer
4073 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4074 .into_iter()
4075 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4076 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4077 let buffer = buffer_handle.read(cx);
4078 let buffer_file = project::File::from_dyn(buffer.file())?;
4079 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4080 let worktree_entry = buffer_worktree
4081 .read(cx)
4082 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4083 if worktree_entry.is_ignored {
4084 return None;
4085 }
4086
4087 let language = buffer.language()?;
4088 if let Some(restrict_to_languages) = restrict_to_languages {
4089 if !restrict_to_languages.contains(language) {
4090 return None;
4091 }
4092 }
4093 Some((
4094 excerpt_id,
4095 (
4096 buffer_handle,
4097 buffer.version().clone(),
4098 excerpt_visible_range,
4099 ),
4100 ))
4101 })
4102 .collect()
4103 }
4104
4105 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4106 TextLayoutDetails {
4107 text_system: cx.text_system().clone(),
4108 editor_style: self.style.clone().unwrap(),
4109 rem_size: cx.rem_size(),
4110 scroll_anchor: self.scroll_manager.anchor(),
4111 visible_rows: self.visible_line_count(),
4112 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4113 }
4114 }
4115
4116 fn splice_inlays(
4117 &self,
4118 to_remove: Vec<InlayId>,
4119 to_insert: Vec<Inlay>,
4120 cx: &mut ViewContext<Self>,
4121 ) {
4122 self.display_map.update(cx, |display_map, cx| {
4123 display_map.splice_inlays(to_remove, to_insert, cx);
4124 });
4125 cx.notify();
4126 }
4127
4128 fn trigger_on_type_formatting(
4129 &self,
4130 input: String,
4131 cx: &mut ViewContext<Self>,
4132 ) -> Option<Task<Result<()>>> {
4133 if input.len() != 1 {
4134 return None;
4135 }
4136
4137 let project = self.project.as_ref()?;
4138 let position = self.selections.newest_anchor().head();
4139 let (buffer, buffer_position) = self
4140 .buffer
4141 .read(cx)
4142 .text_anchor_for_position(position, cx)?;
4143
4144 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4145 // hence we do LSP request & edit on host side only — add formats to host's history.
4146 let push_to_lsp_host_history = true;
4147 // If this is not the host, append its history with new edits.
4148 let push_to_client_history = project.read(cx).is_via_collab();
4149
4150 let on_type_formatting = project.update(cx, |project, cx| {
4151 project.on_type_format(
4152 buffer.clone(),
4153 buffer_position,
4154 input,
4155 push_to_lsp_host_history,
4156 cx,
4157 )
4158 });
4159 Some(cx.spawn(|editor, mut cx| async move {
4160 if let Some(transaction) = on_type_formatting.await? {
4161 if push_to_client_history {
4162 buffer
4163 .update(&mut cx, |buffer, _| {
4164 buffer.push_transaction(transaction, Instant::now());
4165 })
4166 .ok();
4167 }
4168 editor.update(&mut cx, |editor, cx| {
4169 editor.refresh_document_highlights(cx);
4170 })?;
4171 }
4172 Ok(())
4173 }))
4174 }
4175
4176 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4177 if self.pending_rename.is_some() {
4178 return;
4179 }
4180
4181 let Some(provider) = self.completion_provider.as_ref() else {
4182 return;
4183 };
4184
4185 let position = self.selections.newest_anchor().head();
4186 let (buffer, buffer_position) =
4187 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4188 output
4189 } else {
4190 return;
4191 };
4192
4193 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4194 let is_followup_invoke = {
4195 let context_menu_state = self.context_menu.read();
4196 matches!(
4197 context_menu_state.deref(),
4198 Some(ContextMenu::Completions(_))
4199 )
4200 };
4201 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4202 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4203 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4204 CompletionTriggerKind::TRIGGER_CHARACTER
4205 }
4206
4207 _ => CompletionTriggerKind::INVOKED,
4208 };
4209 let completion_context = CompletionContext {
4210 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4211 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4212 Some(String::from(trigger))
4213 } else {
4214 None
4215 }
4216 }),
4217 trigger_kind,
4218 };
4219 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4220 let sort_completions = provider.sort_completions();
4221
4222 let id = post_inc(&mut self.next_completion_id);
4223 let task = cx.spawn(|this, mut cx| {
4224 async move {
4225 this.update(&mut cx, |this, _| {
4226 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4227 })?;
4228 let completions = completions.await.log_err();
4229 let menu = if let Some(completions) = completions {
4230 let mut menu = CompletionsMenu {
4231 id,
4232 sort_completions,
4233 initial_position: position,
4234 match_candidates: completions
4235 .iter()
4236 .enumerate()
4237 .map(|(id, completion)| {
4238 StringMatchCandidate::new(
4239 id,
4240 completion.label.text[completion.label.filter_range.clone()]
4241 .into(),
4242 )
4243 })
4244 .collect(),
4245 buffer: buffer.clone(),
4246 completions: Arc::new(RwLock::new(completions.into())),
4247 matches: Vec::new().into(),
4248 selected_item: 0,
4249 scroll_handle: UniformListScrollHandle::new(),
4250 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4251 DebouncedDelay::new(),
4252 )),
4253 };
4254 menu.filter(query.as_deref(), cx.background_executor().clone())
4255 .await;
4256
4257 if menu.matches.is_empty() {
4258 None
4259 } else {
4260 this.update(&mut cx, |editor, cx| {
4261 let completions = menu.completions.clone();
4262 let matches = menu.matches.clone();
4263
4264 let delay_ms = EditorSettings::get_global(cx)
4265 .completion_documentation_secondary_query_debounce;
4266 let delay = Duration::from_millis(delay_ms);
4267 editor
4268 .completion_documentation_pre_resolve_debounce
4269 .fire_new(delay, cx, |editor, cx| {
4270 CompletionsMenu::pre_resolve_completion_documentation(
4271 buffer,
4272 completions,
4273 matches,
4274 editor,
4275 cx,
4276 )
4277 });
4278 })
4279 .ok();
4280 Some(menu)
4281 }
4282 } else {
4283 None
4284 };
4285
4286 this.update(&mut cx, |this, cx| {
4287 let mut context_menu = this.context_menu.write();
4288 match context_menu.as_ref() {
4289 None => {}
4290
4291 Some(ContextMenu::Completions(prev_menu)) => {
4292 if prev_menu.id > id {
4293 return;
4294 }
4295 }
4296
4297 _ => return,
4298 }
4299
4300 if this.focus_handle.is_focused(cx) && menu.is_some() {
4301 let menu = menu.unwrap();
4302 *context_menu = Some(ContextMenu::Completions(menu));
4303 drop(context_menu);
4304 this.discard_inline_completion(false, cx);
4305 cx.notify();
4306 } else if this.completion_tasks.len() <= 1 {
4307 // If there are no more completion tasks and the last menu was
4308 // empty, we should hide it. If it was already hidden, we should
4309 // also show the copilot completion when available.
4310 drop(context_menu);
4311 if this.hide_context_menu(cx).is_none() {
4312 this.update_visible_inline_completion(cx);
4313 }
4314 }
4315 })?;
4316
4317 Ok::<_, anyhow::Error>(())
4318 }
4319 .log_err()
4320 });
4321
4322 self.completion_tasks.push((id, task));
4323 }
4324
4325 pub fn confirm_completion(
4326 &mut self,
4327 action: &ConfirmCompletion,
4328 cx: &mut ViewContext<Self>,
4329 ) -> Option<Task<Result<()>>> {
4330 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4331 }
4332
4333 pub fn compose_completion(
4334 &mut self,
4335 action: &ComposeCompletion,
4336 cx: &mut ViewContext<Self>,
4337 ) -> Option<Task<Result<()>>> {
4338 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4339 }
4340
4341 fn do_completion(
4342 &mut self,
4343 item_ix: Option<usize>,
4344 intent: CompletionIntent,
4345 cx: &mut ViewContext<Editor>,
4346 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4347 use language::ToOffset as _;
4348
4349 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4350 menu
4351 } else {
4352 return None;
4353 };
4354
4355 let mat = completions_menu
4356 .matches
4357 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4358 let buffer_handle = completions_menu.buffer;
4359 let completions = completions_menu.completions.read();
4360 let completion = completions.get(mat.candidate_id)?;
4361 cx.stop_propagation();
4362
4363 let snippet;
4364 let text;
4365
4366 if completion.is_snippet() {
4367 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4368 text = snippet.as_ref().unwrap().text.clone();
4369 } else {
4370 snippet = None;
4371 text = completion.new_text.clone();
4372 };
4373 let selections = self.selections.all::<usize>(cx);
4374 let buffer = buffer_handle.read(cx);
4375 let old_range = completion.old_range.to_offset(buffer);
4376 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4377
4378 let newest_selection = self.selections.newest_anchor();
4379 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4380 return None;
4381 }
4382
4383 let lookbehind = newest_selection
4384 .start
4385 .text_anchor
4386 .to_offset(buffer)
4387 .saturating_sub(old_range.start);
4388 let lookahead = old_range
4389 .end
4390 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4391 let mut common_prefix_len = old_text
4392 .bytes()
4393 .zip(text.bytes())
4394 .take_while(|(a, b)| a == b)
4395 .count();
4396
4397 let snapshot = self.buffer.read(cx).snapshot(cx);
4398 let mut range_to_replace: Option<Range<isize>> = None;
4399 let mut ranges = Vec::new();
4400 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4401 for selection in &selections {
4402 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4403 let start = selection.start.saturating_sub(lookbehind);
4404 let end = selection.end + lookahead;
4405 if selection.id == newest_selection.id {
4406 range_to_replace = Some(
4407 ((start + common_prefix_len) as isize - selection.start as isize)
4408 ..(end as isize - selection.start as isize),
4409 );
4410 }
4411 ranges.push(start + common_prefix_len..end);
4412 } else {
4413 common_prefix_len = 0;
4414 ranges.clear();
4415 ranges.extend(selections.iter().map(|s| {
4416 if s.id == newest_selection.id {
4417 range_to_replace = Some(
4418 old_range.start.to_offset_utf16(&snapshot).0 as isize
4419 - selection.start as isize
4420 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4421 - selection.start as isize,
4422 );
4423 old_range.clone()
4424 } else {
4425 s.start..s.end
4426 }
4427 }));
4428 break;
4429 }
4430 if !self.linked_edit_ranges.is_empty() {
4431 let start_anchor = snapshot.anchor_before(selection.head());
4432 let end_anchor = snapshot.anchor_after(selection.tail());
4433 if let Some(ranges) = self
4434 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4435 {
4436 for (buffer, edits) in ranges {
4437 linked_edits.entry(buffer.clone()).or_default().extend(
4438 edits
4439 .into_iter()
4440 .map(|range| (range, text[common_prefix_len..].to_owned())),
4441 );
4442 }
4443 }
4444 }
4445 }
4446 let text = &text[common_prefix_len..];
4447
4448 cx.emit(EditorEvent::InputHandled {
4449 utf16_range_to_replace: range_to_replace,
4450 text: text.into(),
4451 });
4452
4453 self.transact(cx, |this, cx| {
4454 if let Some(mut snippet) = snippet {
4455 snippet.text = text.to_string();
4456 for tabstop in snippet.tabstops.iter_mut().flatten() {
4457 tabstop.start -= common_prefix_len as isize;
4458 tabstop.end -= common_prefix_len as isize;
4459 }
4460
4461 this.insert_snippet(&ranges, snippet, cx).log_err();
4462 } else {
4463 this.buffer.update(cx, |buffer, cx| {
4464 buffer.edit(
4465 ranges.iter().map(|range| (range.clone(), text)),
4466 this.autoindent_mode.clone(),
4467 cx,
4468 );
4469 });
4470 }
4471 for (buffer, edits) in linked_edits {
4472 buffer.update(cx, |buffer, cx| {
4473 let snapshot = buffer.snapshot();
4474 let edits = edits
4475 .into_iter()
4476 .map(|(range, text)| {
4477 use text::ToPoint as TP;
4478 let end_point = TP::to_point(&range.end, &snapshot);
4479 let start_point = TP::to_point(&range.start, &snapshot);
4480 (start_point..end_point, text)
4481 })
4482 .sorted_by_key(|(range, _)| range.start)
4483 .collect::<Vec<_>>();
4484 buffer.edit(edits, None, cx);
4485 })
4486 }
4487
4488 this.refresh_inline_completion(true, false, cx);
4489 });
4490
4491 let show_new_completions_on_confirm = completion
4492 .confirm
4493 .as_ref()
4494 .map_or(false, |confirm| confirm(intent, cx));
4495 if show_new_completions_on_confirm {
4496 self.show_completions(&ShowCompletions { trigger: None }, cx);
4497 }
4498
4499 let provider = self.completion_provider.as_ref()?;
4500 let apply_edits = provider.apply_additional_edits_for_completion(
4501 buffer_handle,
4502 completion.clone(),
4503 true,
4504 cx,
4505 );
4506
4507 let editor_settings = EditorSettings::get_global(cx);
4508 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4509 // After the code completion is finished, users often want to know what signatures are needed.
4510 // so we should automatically call signature_help
4511 self.show_signature_help(&ShowSignatureHelp, cx);
4512 }
4513
4514 Some(cx.foreground_executor().spawn(async move {
4515 apply_edits.await?;
4516 Ok(())
4517 }))
4518 }
4519
4520 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4521 let mut context_menu = self.context_menu.write();
4522 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4523 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4524 // Toggle if we're selecting the same one
4525 *context_menu = None;
4526 cx.notify();
4527 return;
4528 } else {
4529 // Otherwise, clear it and start a new one
4530 *context_menu = None;
4531 cx.notify();
4532 }
4533 }
4534 drop(context_menu);
4535 let snapshot = self.snapshot(cx);
4536 let deployed_from_indicator = action.deployed_from_indicator;
4537 let mut task = self.code_actions_task.take();
4538 let action = action.clone();
4539 cx.spawn(|editor, mut cx| async move {
4540 while let Some(prev_task) = task {
4541 prev_task.await;
4542 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4543 }
4544
4545 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4546 if editor.focus_handle.is_focused(cx) {
4547 let multibuffer_point = action
4548 .deployed_from_indicator
4549 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4550 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4551 let (buffer, buffer_row) = snapshot
4552 .buffer_snapshot
4553 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4554 .and_then(|(buffer_snapshot, range)| {
4555 editor
4556 .buffer
4557 .read(cx)
4558 .buffer(buffer_snapshot.remote_id())
4559 .map(|buffer| (buffer, range.start.row))
4560 })?;
4561 let (_, code_actions) = editor
4562 .available_code_actions
4563 .clone()
4564 .and_then(|(location, code_actions)| {
4565 let snapshot = location.buffer.read(cx).snapshot();
4566 let point_range = location.range.to_point(&snapshot);
4567 let point_range = point_range.start.row..=point_range.end.row;
4568 if point_range.contains(&buffer_row) {
4569 Some((location, code_actions))
4570 } else {
4571 None
4572 }
4573 })
4574 .unzip();
4575 let buffer_id = buffer.read(cx).remote_id();
4576 let tasks = editor
4577 .tasks
4578 .get(&(buffer_id, buffer_row))
4579 .map(|t| Arc::new(t.to_owned()));
4580 if tasks.is_none() && code_actions.is_none() {
4581 return None;
4582 }
4583
4584 editor.completion_tasks.clear();
4585 editor.discard_inline_completion(false, cx);
4586 let task_context =
4587 tasks
4588 .as_ref()
4589 .zip(editor.project.clone())
4590 .map(|(tasks, project)| {
4591 let position = Point::new(buffer_row, tasks.column);
4592 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4593 let location = Location {
4594 buffer: buffer.clone(),
4595 range: range_start..range_start,
4596 };
4597 // Fill in the environmental variables from the tree-sitter captures
4598 let mut captured_task_variables = TaskVariables::default();
4599 for (capture_name, value) in tasks.extra_variables.clone() {
4600 captured_task_variables.insert(
4601 task::VariableName::Custom(capture_name.into()),
4602 value.clone(),
4603 );
4604 }
4605 project.update(cx, |project, cx| {
4606 project.task_context_for_location(
4607 captured_task_variables,
4608 location,
4609 cx,
4610 )
4611 })
4612 });
4613
4614 Some(cx.spawn(|editor, mut cx| async move {
4615 let task_context = match task_context {
4616 Some(task_context) => task_context.await,
4617 None => None,
4618 };
4619 let resolved_tasks =
4620 tasks.zip(task_context).map(|(tasks, task_context)| {
4621 Arc::new(ResolvedTasks {
4622 templates: tasks
4623 .templates
4624 .iter()
4625 .filter_map(|(kind, template)| {
4626 template
4627 .resolve_task(&kind.to_id_base(), &task_context)
4628 .map(|task| (kind.clone(), task))
4629 })
4630 .collect(),
4631 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4632 multibuffer_point.row,
4633 tasks.column,
4634 )),
4635 })
4636 });
4637 let spawn_straight_away = resolved_tasks
4638 .as_ref()
4639 .map_or(false, |tasks| tasks.templates.len() == 1)
4640 && code_actions
4641 .as_ref()
4642 .map_or(true, |actions| actions.is_empty());
4643 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4644 *editor.context_menu.write() =
4645 Some(ContextMenu::CodeActions(CodeActionsMenu {
4646 buffer,
4647 actions: CodeActionContents {
4648 tasks: resolved_tasks,
4649 actions: code_actions,
4650 },
4651 selected_item: Default::default(),
4652 scroll_handle: UniformListScrollHandle::default(),
4653 deployed_from_indicator,
4654 }));
4655 if spawn_straight_away {
4656 if let Some(task) = editor.confirm_code_action(
4657 &ConfirmCodeAction { item_ix: Some(0) },
4658 cx,
4659 ) {
4660 cx.notify();
4661 return task;
4662 }
4663 }
4664 cx.notify();
4665 Task::ready(Ok(()))
4666 }) {
4667 task.await
4668 } else {
4669 Ok(())
4670 }
4671 }))
4672 } else {
4673 Some(Task::ready(Ok(())))
4674 }
4675 })?;
4676 if let Some(task) = spawned_test_task {
4677 task.await?;
4678 }
4679
4680 Ok::<_, anyhow::Error>(())
4681 })
4682 .detach_and_log_err(cx);
4683 }
4684
4685 pub fn confirm_code_action(
4686 &mut self,
4687 action: &ConfirmCodeAction,
4688 cx: &mut ViewContext<Self>,
4689 ) -> Option<Task<Result<()>>> {
4690 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4691 menu
4692 } else {
4693 return None;
4694 };
4695 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4696 let action = actions_menu.actions.get(action_ix)?;
4697 let title = action.label();
4698 let buffer = actions_menu.buffer;
4699 let workspace = self.workspace()?;
4700
4701 match action {
4702 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4703 workspace.update(cx, |workspace, cx| {
4704 workspace::tasks::schedule_resolved_task(
4705 workspace,
4706 task_source_kind,
4707 resolved_task,
4708 false,
4709 cx,
4710 );
4711
4712 Some(Task::ready(Ok(())))
4713 })
4714 }
4715 CodeActionsItem::CodeAction(action) => {
4716 let apply_code_actions = workspace
4717 .read(cx)
4718 .project()
4719 .clone()
4720 .update(cx, |project, cx| {
4721 project.apply_code_action(buffer, action, true, cx)
4722 });
4723 let workspace = workspace.downgrade();
4724 Some(cx.spawn(|editor, cx| async move {
4725 let project_transaction = apply_code_actions.await?;
4726 Self::open_project_transaction(
4727 &editor,
4728 workspace,
4729 project_transaction,
4730 title,
4731 cx,
4732 )
4733 .await
4734 }))
4735 }
4736 }
4737 }
4738
4739 pub async fn open_project_transaction(
4740 this: &WeakView<Editor>,
4741 workspace: WeakView<Workspace>,
4742 transaction: ProjectTransaction,
4743 title: String,
4744 mut cx: AsyncWindowContext,
4745 ) -> Result<()> {
4746 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4747
4748 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4749 cx.update(|cx| {
4750 entries.sort_unstable_by_key(|(buffer, _)| {
4751 buffer.read(cx).file().map(|f| f.path().clone())
4752 });
4753 })?;
4754
4755 // If the project transaction's edits are all contained within this editor, then
4756 // avoid opening a new editor to display them.
4757
4758 if let Some((buffer, transaction)) = entries.first() {
4759 if entries.len() == 1 {
4760 let excerpt = this.update(&mut cx, |editor, cx| {
4761 editor
4762 .buffer()
4763 .read(cx)
4764 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4765 })?;
4766 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4767 if excerpted_buffer == *buffer {
4768 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4769 let excerpt_range = excerpt_range.to_offset(buffer);
4770 buffer
4771 .edited_ranges_for_transaction::<usize>(transaction)
4772 .all(|range| {
4773 excerpt_range.start <= range.start
4774 && excerpt_range.end >= range.end
4775 })
4776 })?;
4777
4778 if all_edits_within_excerpt {
4779 return Ok(());
4780 }
4781 }
4782 }
4783 }
4784 } else {
4785 return Ok(());
4786 }
4787
4788 let mut ranges_to_highlight = Vec::new();
4789 let excerpt_buffer = cx.new_model(|cx| {
4790 let mut multibuffer =
4791 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4792 for (buffer_handle, transaction) in &entries {
4793 let buffer = buffer_handle.read(cx);
4794 ranges_to_highlight.extend(
4795 multibuffer.push_excerpts_with_context_lines(
4796 buffer_handle.clone(),
4797 buffer
4798 .edited_ranges_for_transaction::<usize>(transaction)
4799 .collect(),
4800 DEFAULT_MULTIBUFFER_CONTEXT,
4801 cx,
4802 ),
4803 );
4804 }
4805 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4806 multibuffer
4807 })?;
4808
4809 workspace.update(&mut cx, |workspace, cx| {
4810 let project = workspace.project().clone();
4811 let editor =
4812 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4813 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4814 editor.update(cx, |editor, cx| {
4815 editor.highlight_background::<Self>(
4816 &ranges_to_highlight,
4817 |theme| theme.editor_highlighted_line_background,
4818 cx,
4819 );
4820 });
4821 })?;
4822
4823 Ok(())
4824 }
4825
4826 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4827 let project = self.project.clone()?;
4828 let buffer = self.buffer.read(cx);
4829 let newest_selection = self.selections.newest_anchor().clone();
4830 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4831 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4832 if start_buffer != end_buffer {
4833 return None;
4834 }
4835
4836 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4837 cx.background_executor()
4838 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4839 .await;
4840
4841 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4842 project.code_actions(&start_buffer, start..end, cx)
4843 }) {
4844 code_actions.await
4845 } else {
4846 Vec::new()
4847 };
4848
4849 this.update(&mut cx, |this, cx| {
4850 this.available_code_actions = if actions.is_empty() {
4851 None
4852 } else {
4853 Some((
4854 Location {
4855 buffer: start_buffer,
4856 range: start..end,
4857 },
4858 actions.into(),
4859 ))
4860 };
4861 cx.notify();
4862 })
4863 .log_err();
4864 }));
4865 None
4866 }
4867
4868 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4869 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4870 self.show_git_blame_inline = false;
4871
4872 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4873 cx.background_executor().timer(delay).await;
4874
4875 this.update(&mut cx, |this, cx| {
4876 this.show_git_blame_inline = true;
4877 cx.notify();
4878 })
4879 .log_err();
4880 }));
4881 }
4882 }
4883
4884 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4885 if self.pending_rename.is_some() {
4886 return None;
4887 }
4888
4889 let project = self.project.clone()?;
4890 let buffer = self.buffer.read(cx);
4891 let newest_selection = self.selections.newest_anchor().clone();
4892 let cursor_position = newest_selection.head();
4893 let (cursor_buffer, cursor_buffer_position) =
4894 buffer.text_anchor_for_position(cursor_position, cx)?;
4895 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4896 if cursor_buffer != tail_buffer {
4897 return None;
4898 }
4899
4900 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4901 cx.background_executor()
4902 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4903 .await;
4904
4905 let highlights = if let Some(highlights) = project
4906 .update(&mut cx, |project, cx| {
4907 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4908 })
4909 .log_err()
4910 {
4911 highlights.await.log_err()
4912 } else {
4913 None
4914 };
4915
4916 if let Some(highlights) = highlights {
4917 this.update(&mut cx, |this, cx| {
4918 if this.pending_rename.is_some() {
4919 return;
4920 }
4921
4922 let buffer_id = cursor_position.buffer_id;
4923 let buffer = this.buffer.read(cx);
4924 if !buffer
4925 .text_anchor_for_position(cursor_position, cx)
4926 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4927 {
4928 return;
4929 }
4930
4931 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4932 let mut write_ranges = Vec::new();
4933 let mut read_ranges = Vec::new();
4934 for highlight in highlights {
4935 for (excerpt_id, excerpt_range) in
4936 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4937 {
4938 let start = highlight
4939 .range
4940 .start
4941 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4942 let end = highlight
4943 .range
4944 .end
4945 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4946 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4947 continue;
4948 }
4949
4950 let range = Anchor {
4951 buffer_id,
4952 excerpt_id,
4953 text_anchor: start,
4954 }..Anchor {
4955 buffer_id,
4956 excerpt_id,
4957 text_anchor: end,
4958 };
4959 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4960 write_ranges.push(range);
4961 } else {
4962 read_ranges.push(range);
4963 }
4964 }
4965 }
4966
4967 this.highlight_background::<DocumentHighlightRead>(
4968 &read_ranges,
4969 |theme| theme.editor_document_highlight_read_background,
4970 cx,
4971 );
4972 this.highlight_background::<DocumentHighlightWrite>(
4973 &write_ranges,
4974 |theme| theme.editor_document_highlight_write_background,
4975 cx,
4976 );
4977 cx.notify();
4978 })
4979 .log_err();
4980 }
4981 }));
4982 None
4983 }
4984
4985 pub fn refresh_inline_completion(
4986 &mut self,
4987 debounce: bool,
4988 user_requested: bool,
4989 cx: &mut ViewContext<Self>,
4990 ) -> Option<()> {
4991 let provider = self.inline_completion_provider()?;
4992 let cursor = self.selections.newest_anchor().head();
4993 let (buffer, cursor_buffer_position) =
4994 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4995
4996 if !user_requested
4997 && (!self.enable_inline_completions
4998 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
4999 {
5000 self.discard_inline_completion(false, cx);
5001 return None;
5002 }
5003
5004 self.update_visible_inline_completion(cx);
5005 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5006 Some(())
5007 }
5008
5009 fn cycle_inline_completion(
5010 &mut self,
5011 direction: Direction,
5012 cx: &mut ViewContext<Self>,
5013 ) -> Option<()> {
5014 let provider = self.inline_completion_provider()?;
5015 let cursor = self.selections.newest_anchor().head();
5016 let (buffer, cursor_buffer_position) =
5017 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5018 if !self.enable_inline_completions
5019 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5020 {
5021 return None;
5022 }
5023
5024 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5025 self.update_visible_inline_completion(cx);
5026
5027 Some(())
5028 }
5029
5030 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5031 if !self.has_active_inline_completion(cx) {
5032 self.refresh_inline_completion(false, true, cx);
5033 return;
5034 }
5035
5036 self.update_visible_inline_completion(cx);
5037 }
5038
5039 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5040 self.show_cursor_names(cx);
5041 }
5042
5043 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5044 self.show_cursor_names = true;
5045 cx.notify();
5046 cx.spawn(|this, mut cx| async move {
5047 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5048 this.update(&mut cx, |this, cx| {
5049 this.show_cursor_names = false;
5050 cx.notify()
5051 })
5052 .ok()
5053 })
5054 .detach();
5055 }
5056
5057 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5058 if self.has_active_inline_completion(cx) {
5059 self.cycle_inline_completion(Direction::Next, cx);
5060 } else {
5061 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5062 if is_copilot_disabled {
5063 cx.propagate();
5064 }
5065 }
5066 }
5067
5068 pub fn previous_inline_completion(
5069 &mut self,
5070 _: &PreviousInlineCompletion,
5071 cx: &mut ViewContext<Self>,
5072 ) {
5073 if self.has_active_inline_completion(cx) {
5074 self.cycle_inline_completion(Direction::Prev, cx);
5075 } else {
5076 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5077 if is_copilot_disabled {
5078 cx.propagate();
5079 }
5080 }
5081 }
5082
5083 pub fn accept_inline_completion(
5084 &mut self,
5085 _: &AcceptInlineCompletion,
5086 cx: &mut ViewContext<Self>,
5087 ) {
5088 let Some(completion) = self.take_active_inline_completion(cx) else {
5089 return;
5090 };
5091 if let Some(provider) = self.inline_completion_provider() {
5092 provider.accept(cx);
5093 }
5094
5095 cx.emit(EditorEvent::InputHandled {
5096 utf16_range_to_replace: None,
5097 text: completion.text.to_string().into(),
5098 });
5099
5100 if let Some(range) = completion.delete_range {
5101 self.change_selections(None, cx, |s| s.select_ranges([range]))
5102 }
5103 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5104 self.refresh_inline_completion(true, true, cx);
5105 cx.notify();
5106 }
5107
5108 pub fn accept_partial_inline_completion(
5109 &mut self,
5110 _: &AcceptPartialInlineCompletion,
5111 cx: &mut ViewContext<Self>,
5112 ) {
5113 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5114 if let Some(completion) = self.take_active_inline_completion(cx) {
5115 let mut partial_completion = completion
5116 .text
5117 .chars()
5118 .by_ref()
5119 .take_while(|c| c.is_alphabetic())
5120 .collect::<String>();
5121 if partial_completion.is_empty() {
5122 partial_completion = completion
5123 .text
5124 .chars()
5125 .by_ref()
5126 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5127 .collect::<String>();
5128 }
5129
5130 cx.emit(EditorEvent::InputHandled {
5131 utf16_range_to_replace: None,
5132 text: partial_completion.clone().into(),
5133 });
5134
5135 if let Some(range) = completion.delete_range {
5136 self.change_selections(None, cx, |s| s.select_ranges([range]))
5137 }
5138 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5139
5140 self.refresh_inline_completion(true, true, cx);
5141 cx.notify();
5142 }
5143 }
5144 }
5145
5146 fn discard_inline_completion(
5147 &mut self,
5148 should_report_inline_completion_event: bool,
5149 cx: &mut ViewContext<Self>,
5150 ) -> bool {
5151 if let Some(provider) = self.inline_completion_provider() {
5152 provider.discard(should_report_inline_completion_event, cx);
5153 }
5154
5155 self.take_active_inline_completion(cx).is_some()
5156 }
5157
5158 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5159 if let Some(completion) = self.active_inline_completion.as_ref() {
5160 let buffer = self.buffer.read(cx).read(cx);
5161 completion.position.is_valid(&buffer)
5162 } else {
5163 false
5164 }
5165 }
5166
5167 fn take_active_inline_completion(
5168 &mut self,
5169 cx: &mut ViewContext<Self>,
5170 ) -> Option<CompletionState> {
5171 let completion = self.active_inline_completion.take()?;
5172 let render_inlay_ids = completion.render_inlay_ids.clone();
5173 self.display_map.update(cx, |map, cx| {
5174 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5175 });
5176 let buffer = self.buffer.read(cx).read(cx);
5177
5178 if completion.position.is_valid(&buffer) {
5179 Some(completion)
5180 } else {
5181 None
5182 }
5183 }
5184
5185 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5186 let selection = self.selections.newest_anchor();
5187 let cursor = selection.head();
5188
5189 let excerpt_id = cursor.excerpt_id;
5190
5191 if self.context_menu.read().is_none()
5192 && self.completion_tasks.is_empty()
5193 && selection.start == selection.end
5194 {
5195 if let Some(provider) = self.inline_completion_provider() {
5196 if let Some((buffer, cursor_buffer_position)) =
5197 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5198 {
5199 if let Some(proposal) =
5200 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5201 {
5202 let mut to_remove = Vec::new();
5203 if let Some(completion) = self.active_inline_completion.take() {
5204 to_remove.extend(completion.render_inlay_ids.iter());
5205 }
5206
5207 let to_add = proposal
5208 .inlays
5209 .iter()
5210 .filter_map(|inlay| {
5211 let snapshot = self.buffer.read(cx).snapshot(cx);
5212 let id = post_inc(&mut self.next_inlay_id);
5213 match inlay {
5214 InlayProposal::Hint(position, hint) => {
5215 let position =
5216 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5217 Some(Inlay::hint(id, position, hint))
5218 }
5219 InlayProposal::Suggestion(position, text) => {
5220 let position =
5221 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5222 Some(Inlay::suggestion(id, position, text.clone()))
5223 }
5224 }
5225 })
5226 .collect_vec();
5227
5228 self.active_inline_completion = Some(CompletionState {
5229 position: cursor,
5230 text: proposal.text,
5231 delete_range: proposal.delete_range.and_then(|range| {
5232 let snapshot = self.buffer.read(cx).snapshot(cx);
5233 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5234 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5235 Some(start?..end?)
5236 }),
5237 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5238 });
5239
5240 self.display_map
5241 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5242
5243 cx.notify();
5244 return;
5245 }
5246 }
5247 }
5248 }
5249
5250 self.discard_inline_completion(false, cx);
5251 }
5252
5253 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5254 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5255 }
5256
5257 fn render_code_actions_indicator(
5258 &self,
5259 _style: &EditorStyle,
5260 row: DisplayRow,
5261 is_active: bool,
5262 cx: &mut ViewContext<Self>,
5263 ) -> Option<IconButton> {
5264 if self.available_code_actions.is_some() {
5265 Some(
5266 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5267 .shape(ui::IconButtonShape::Square)
5268 .icon_size(IconSize::XSmall)
5269 .icon_color(Color::Muted)
5270 .selected(is_active)
5271 .on_click(cx.listener(move |editor, _e, cx| {
5272 editor.focus(cx);
5273 editor.toggle_code_actions(
5274 &ToggleCodeActions {
5275 deployed_from_indicator: Some(row),
5276 },
5277 cx,
5278 );
5279 })),
5280 )
5281 } else {
5282 None
5283 }
5284 }
5285
5286 fn clear_tasks(&mut self) {
5287 self.tasks.clear()
5288 }
5289
5290 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5291 if self.tasks.insert(key, value).is_some() {
5292 // This case should hopefully be rare, but just in case...
5293 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5294 }
5295 }
5296
5297 fn render_run_indicator(
5298 &self,
5299 _style: &EditorStyle,
5300 is_active: bool,
5301 row: DisplayRow,
5302 cx: &mut ViewContext<Self>,
5303 ) -> IconButton {
5304 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5305 .shape(ui::IconButtonShape::Square)
5306 .icon_size(IconSize::XSmall)
5307 .icon_color(Color::Muted)
5308 .selected(is_active)
5309 .on_click(cx.listener(move |editor, _e, cx| {
5310 editor.focus(cx);
5311 editor.toggle_code_actions(
5312 &ToggleCodeActions {
5313 deployed_from_indicator: Some(row),
5314 },
5315 cx,
5316 );
5317 }))
5318 }
5319
5320 fn close_hunk_diff_button(
5321 &self,
5322 hunk: HoveredHunk,
5323 row: DisplayRow,
5324 cx: &mut ViewContext<Self>,
5325 ) -> IconButton {
5326 IconButton::new(
5327 ("close_hunk_diff_indicator", row.0 as usize),
5328 ui::IconName::Close,
5329 )
5330 .shape(ui::IconButtonShape::Square)
5331 .icon_size(IconSize::XSmall)
5332 .icon_color(Color::Muted)
5333 .tooltip(|cx| Tooltip::for_action("Close hunk diff", &ToggleHunkDiff, cx))
5334 .on_click(cx.listener(move |editor, _e, cx| editor.toggle_hovered_hunk(&hunk, cx)))
5335 }
5336
5337 pub fn context_menu_visible(&self) -> bool {
5338 self.context_menu
5339 .read()
5340 .as_ref()
5341 .map_or(false, |menu| menu.visible())
5342 }
5343
5344 fn render_context_menu(
5345 &self,
5346 cursor_position: DisplayPoint,
5347 style: &EditorStyle,
5348 max_height: Pixels,
5349 cx: &mut ViewContext<Editor>,
5350 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5351 self.context_menu.read().as_ref().map(|menu| {
5352 menu.render(
5353 cursor_position,
5354 style,
5355 max_height,
5356 self.workspace.as_ref().map(|(w, _)| w.clone()),
5357 cx,
5358 )
5359 })
5360 }
5361
5362 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5363 cx.notify();
5364 self.completion_tasks.clear();
5365 let context_menu = self.context_menu.write().take();
5366 if context_menu.is_some() {
5367 self.update_visible_inline_completion(cx);
5368 }
5369 context_menu
5370 }
5371
5372 pub fn insert_snippet(
5373 &mut self,
5374 insertion_ranges: &[Range<usize>],
5375 snippet: Snippet,
5376 cx: &mut ViewContext<Self>,
5377 ) -> Result<()> {
5378 struct Tabstop<T> {
5379 is_end_tabstop: bool,
5380 ranges: Vec<Range<T>>,
5381 }
5382
5383 let tabstops = self.buffer.update(cx, |buffer, cx| {
5384 let snippet_text: Arc<str> = snippet.text.clone().into();
5385 buffer.edit(
5386 insertion_ranges
5387 .iter()
5388 .cloned()
5389 .map(|range| (range, snippet_text.clone())),
5390 Some(AutoindentMode::EachLine),
5391 cx,
5392 );
5393
5394 let snapshot = &*buffer.read(cx);
5395 let snippet = &snippet;
5396 snippet
5397 .tabstops
5398 .iter()
5399 .map(|tabstop| {
5400 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5401 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5402 });
5403 let mut tabstop_ranges = tabstop
5404 .iter()
5405 .flat_map(|tabstop_range| {
5406 let mut delta = 0_isize;
5407 insertion_ranges.iter().map(move |insertion_range| {
5408 let insertion_start = insertion_range.start as isize + delta;
5409 delta +=
5410 snippet.text.len() as isize - insertion_range.len() as isize;
5411
5412 let start = ((insertion_start + tabstop_range.start) as usize)
5413 .min(snapshot.len());
5414 let end = ((insertion_start + tabstop_range.end) as usize)
5415 .min(snapshot.len());
5416 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5417 })
5418 })
5419 .collect::<Vec<_>>();
5420 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5421
5422 Tabstop {
5423 is_end_tabstop,
5424 ranges: tabstop_ranges,
5425 }
5426 })
5427 .collect::<Vec<_>>()
5428 });
5429 if let Some(tabstop) = tabstops.first() {
5430 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5431 s.select_ranges(tabstop.ranges.iter().cloned());
5432 });
5433
5434 // If we're already at the last tabstop and it's at the end of the snippet,
5435 // we're done, we don't need to keep the state around.
5436 if !tabstop.is_end_tabstop {
5437 let ranges = tabstops
5438 .into_iter()
5439 .map(|tabstop| tabstop.ranges)
5440 .collect::<Vec<_>>();
5441 self.snippet_stack.push(SnippetState {
5442 active_index: 0,
5443 ranges,
5444 });
5445 }
5446
5447 // Check whether the just-entered snippet ends with an auto-closable bracket.
5448 if self.autoclose_regions.is_empty() {
5449 let snapshot = self.buffer.read(cx).snapshot(cx);
5450 for selection in &mut self.selections.all::<Point>(cx) {
5451 let selection_head = selection.head();
5452 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5453 continue;
5454 };
5455
5456 let mut bracket_pair = None;
5457 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5458 let prev_chars = snapshot
5459 .reversed_chars_at(selection_head)
5460 .collect::<String>();
5461 for (pair, enabled) in scope.brackets() {
5462 if enabled
5463 && pair.close
5464 && prev_chars.starts_with(pair.start.as_str())
5465 && next_chars.starts_with(pair.end.as_str())
5466 {
5467 bracket_pair = Some(pair.clone());
5468 break;
5469 }
5470 }
5471 if let Some(pair) = bracket_pair {
5472 let start = snapshot.anchor_after(selection_head);
5473 let end = snapshot.anchor_after(selection_head);
5474 self.autoclose_regions.push(AutocloseRegion {
5475 selection_id: selection.id,
5476 range: start..end,
5477 pair,
5478 });
5479 }
5480 }
5481 }
5482 }
5483 Ok(())
5484 }
5485
5486 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5487 self.move_to_snippet_tabstop(Bias::Right, cx)
5488 }
5489
5490 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5491 self.move_to_snippet_tabstop(Bias::Left, cx)
5492 }
5493
5494 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5495 if let Some(mut snippet) = self.snippet_stack.pop() {
5496 match bias {
5497 Bias::Left => {
5498 if snippet.active_index > 0 {
5499 snippet.active_index -= 1;
5500 } else {
5501 self.snippet_stack.push(snippet);
5502 return false;
5503 }
5504 }
5505 Bias::Right => {
5506 if snippet.active_index + 1 < snippet.ranges.len() {
5507 snippet.active_index += 1;
5508 } else {
5509 self.snippet_stack.push(snippet);
5510 return false;
5511 }
5512 }
5513 }
5514 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5515 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5516 s.select_anchor_ranges(current_ranges.iter().cloned())
5517 });
5518 // If snippet state is not at the last tabstop, push it back on the stack
5519 if snippet.active_index + 1 < snippet.ranges.len() {
5520 self.snippet_stack.push(snippet);
5521 }
5522 return true;
5523 }
5524 }
5525
5526 false
5527 }
5528
5529 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5530 self.transact(cx, |this, cx| {
5531 this.select_all(&SelectAll, cx);
5532 this.insert("", cx);
5533 });
5534 }
5535
5536 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5537 self.transact(cx, |this, cx| {
5538 this.select_autoclose_pair(cx);
5539 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5540 if !this.linked_edit_ranges.is_empty() {
5541 let selections = this.selections.all::<MultiBufferPoint>(cx);
5542 let snapshot = this.buffer.read(cx).snapshot(cx);
5543
5544 for selection in selections.iter() {
5545 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5546 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5547 if selection_start.buffer_id != selection_end.buffer_id {
5548 continue;
5549 }
5550 if let Some(ranges) =
5551 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5552 {
5553 for (buffer, entries) in ranges {
5554 linked_ranges.entry(buffer).or_default().extend(entries);
5555 }
5556 }
5557 }
5558 }
5559
5560 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5561 if !this.selections.line_mode {
5562 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5563 for selection in &mut selections {
5564 if selection.is_empty() {
5565 let old_head = selection.head();
5566 let mut new_head =
5567 movement::left(&display_map, old_head.to_display_point(&display_map))
5568 .to_point(&display_map);
5569 if let Some((buffer, line_buffer_range)) = display_map
5570 .buffer_snapshot
5571 .buffer_line_for_row(MultiBufferRow(old_head.row))
5572 {
5573 let indent_size =
5574 buffer.indent_size_for_line(line_buffer_range.start.row);
5575 let indent_len = match indent_size.kind {
5576 IndentKind::Space => {
5577 buffer.settings_at(line_buffer_range.start, cx).tab_size
5578 }
5579 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5580 };
5581 if old_head.column <= indent_size.len && old_head.column > 0 {
5582 let indent_len = indent_len.get();
5583 new_head = cmp::min(
5584 new_head,
5585 MultiBufferPoint::new(
5586 old_head.row,
5587 ((old_head.column - 1) / indent_len) * indent_len,
5588 ),
5589 );
5590 }
5591 }
5592
5593 selection.set_head(new_head, SelectionGoal::None);
5594 }
5595 }
5596 }
5597
5598 this.signature_help_state.set_backspace_pressed(true);
5599 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5600 this.insert("", cx);
5601 let empty_str: Arc<str> = Arc::from("");
5602 for (buffer, edits) in linked_ranges {
5603 let snapshot = buffer.read(cx).snapshot();
5604 use text::ToPoint as TP;
5605
5606 let edits = edits
5607 .into_iter()
5608 .map(|range| {
5609 let end_point = TP::to_point(&range.end, &snapshot);
5610 let mut start_point = TP::to_point(&range.start, &snapshot);
5611
5612 if end_point == start_point {
5613 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5614 .saturating_sub(1);
5615 start_point = TP::to_point(&offset, &snapshot);
5616 };
5617
5618 (start_point..end_point, empty_str.clone())
5619 })
5620 .sorted_by_key(|(range, _)| range.start)
5621 .collect::<Vec<_>>();
5622 buffer.update(cx, |this, cx| {
5623 this.edit(edits, None, cx);
5624 })
5625 }
5626 this.refresh_inline_completion(true, false, cx);
5627 linked_editing_ranges::refresh_linked_ranges(this, cx);
5628 });
5629 }
5630
5631 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5632 self.transact(cx, |this, cx| {
5633 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5634 let line_mode = s.line_mode;
5635 s.move_with(|map, selection| {
5636 if selection.is_empty() && !line_mode {
5637 let cursor = movement::right(map, selection.head());
5638 selection.end = cursor;
5639 selection.reversed = true;
5640 selection.goal = SelectionGoal::None;
5641 }
5642 })
5643 });
5644 this.insert("", cx);
5645 this.refresh_inline_completion(true, false, cx);
5646 });
5647 }
5648
5649 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5650 if self.move_to_prev_snippet_tabstop(cx) {
5651 return;
5652 }
5653
5654 self.outdent(&Outdent, cx);
5655 }
5656
5657 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5658 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5659 return;
5660 }
5661
5662 let mut selections = self.selections.all_adjusted(cx);
5663 let buffer = self.buffer.read(cx);
5664 let snapshot = buffer.snapshot(cx);
5665 let rows_iter = selections.iter().map(|s| s.head().row);
5666 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5667
5668 let mut edits = Vec::new();
5669 let mut prev_edited_row = 0;
5670 let mut row_delta = 0;
5671 for selection in &mut selections {
5672 if selection.start.row != prev_edited_row {
5673 row_delta = 0;
5674 }
5675 prev_edited_row = selection.end.row;
5676
5677 // If the selection is non-empty, then increase the indentation of the selected lines.
5678 if !selection.is_empty() {
5679 row_delta =
5680 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5681 continue;
5682 }
5683
5684 // If the selection is empty and the cursor is in the leading whitespace before the
5685 // suggested indentation, then auto-indent the line.
5686 let cursor = selection.head();
5687 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5688 if let Some(suggested_indent) =
5689 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5690 {
5691 if cursor.column < suggested_indent.len
5692 && cursor.column <= current_indent.len
5693 && current_indent.len <= suggested_indent.len
5694 {
5695 selection.start = Point::new(cursor.row, suggested_indent.len);
5696 selection.end = selection.start;
5697 if row_delta == 0 {
5698 edits.extend(Buffer::edit_for_indent_size_adjustment(
5699 cursor.row,
5700 current_indent,
5701 suggested_indent,
5702 ));
5703 row_delta = suggested_indent.len - current_indent.len;
5704 }
5705 continue;
5706 }
5707 }
5708
5709 // Otherwise, insert a hard or soft tab.
5710 let settings = buffer.settings_at(cursor, cx);
5711 let tab_size = if settings.hard_tabs {
5712 IndentSize::tab()
5713 } else {
5714 let tab_size = settings.tab_size.get();
5715 let char_column = snapshot
5716 .text_for_range(Point::new(cursor.row, 0)..cursor)
5717 .flat_map(str::chars)
5718 .count()
5719 + row_delta as usize;
5720 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5721 IndentSize::spaces(chars_to_next_tab_stop)
5722 };
5723 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5724 selection.end = selection.start;
5725 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5726 row_delta += tab_size.len;
5727 }
5728
5729 self.transact(cx, |this, cx| {
5730 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5731 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5732 this.refresh_inline_completion(true, false, cx);
5733 });
5734 }
5735
5736 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5737 if self.read_only(cx) {
5738 return;
5739 }
5740 let mut selections = self.selections.all::<Point>(cx);
5741 let mut prev_edited_row = 0;
5742 let mut row_delta = 0;
5743 let mut edits = Vec::new();
5744 let buffer = self.buffer.read(cx);
5745 let snapshot = buffer.snapshot(cx);
5746 for selection in &mut selections {
5747 if selection.start.row != prev_edited_row {
5748 row_delta = 0;
5749 }
5750 prev_edited_row = selection.end.row;
5751
5752 row_delta =
5753 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5754 }
5755
5756 self.transact(cx, |this, cx| {
5757 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5758 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5759 });
5760 }
5761
5762 fn indent_selection(
5763 buffer: &MultiBuffer,
5764 snapshot: &MultiBufferSnapshot,
5765 selection: &mut Selection<Point>,
5766 edits: &mut Vec<(Range<Point>, String)>,
5767 delta_for_start_row: u32,
5768 cx: &AppContext,
5769 ) -> u32 {
5770 let settings = buffer.settings_at(selection.start, cx);
5771 let tab_size = settings.tab_size.get();
5772 let indent_kind = if settings.hard_tabs {
5773 IndentKind::Tab
5774 } else {
5775 IndentKind::Space
5776 };
5777 let mut start_row = selection.start.row;
5778 let mut end_row = selection.end.row + 1;
5779
5780 // If a selection ends at the beginning of a line, don't indent
5781 // that last line.
5782 if selection.end.column == 0 && selection.end.row > selection.start.row {
5783 end_row -= 1;
5784 }
5785
5786 // Avoid re-indenting a row that has already been indented by a
5787 // previous selection, but still update this selection's column
5788 // to reflect that indentation.
5789 if delta_for_start_row > 0 {
5790 start_row += 1;
5791 selection.start.column += delta_for_start_row;
5792 if selection.end.row == selection.start.row {
5793 selection.end.column += delta_for_start_row;
5794 }
5795 }
5796
5797 let mut delta_for_end_row = 0;
5798 let has_multiple_rows = start_row + 1 != end_row;
5799 for row in start_row..end_row {
5800 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5801 let indent_delta = match (current_indent.kind, indent_kind) {
5802 (IndentKind::Space, IndentKind::Space) => {
5803 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5804 IndentSize::spaces(columns_to_next_tab_stop)
5805 }
5806 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5807 (_, IndentKind::Tab) => IndentSize::tab(),
5808 };
5809
5810 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5811 0
5812 } else {
5813 selection.start.column
5814 };
5815 let row_start = Point::new(row, start);
5816 edits.push((
5817 row_start..row_start,
5818 indent_delta.chars().collect::<String>(),
5819 ));
5820
5821 // Update this selection's endpoints to reflect the indentation.
5822 if row == selection.start.row {
5823 selection.start.column += indent_delta.len;
5824 }
5825 if row == selection.end.row {
5826 selection.end.column += indent_delta.len;
5827 delta_for_end_row = indent_delta.len;
5828 }
5829 }
5830
5831 if selection.start.row == selection.end.row {
5832 delta_for_start_row + delta_for_end_row
5833 } else {
5834 delta_for_end_row
5835 }
5836 }
5837
5838 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5839 if self.read_only(cx) {
5840 return;
5841 }
5842 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5843 let selections = self.selections.all::<Point>(cx);
5844 let mut deletion_ranges = Vec::new();
5845 let mut last_outdent = None;
5846 {
5847 let buffer = self.buffer.read(cx);
5848 let snapshot = buffer.snapshot(cx);
5849 for selection in &selections {
5850 let settings = buffer.settings_at(selection.start, cx);
5851 let tab_size = settings.tab_size.get();
5852 let mut rows = selection.spanned_rows(false, &display_map);
5853
5854 // Avoid re-outdenting a row that has already been outdented by a
5855 // previous selection.
5856 if let Some(last_row) = last_outdent {
5857 if last_row == rows.start {
5858 rows.start = rows.start.next_row();
5859 }
5860 }
5861 let has_multiple_rows = rows.len() > 1;
5862 for row in rows.iter_rows() {
5863 let indent_size = snapshot.indent_size_for_line(row);
5864 if indent_size.len > 0 {
5865 let deletion_len = match indent_size.kind {
5866 IndentKind::Space => {
5867 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5868 if columns_to_prev_tab_stop == 0 {
5869 tab_size
5870 } else {
5871 columns_to_prev_tab_stop
5872 }
5873 }
5874 IndentKind::Tab => 1,
5875 };
5876 let start = if has_multiple_rows
5877 || deletion_len > selection.start.column
5878 || indent_size.len < selection.start.column
5879 {
5880 0
5881 } else {
5882 selection.start.column - deletion_len
5883 };
5884 deletion_ranges.push(
5885 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5886 );
5887 last_outdent = Some(row);
5888 }
5889 }
5890 }
5891 }
5892
5893 self.transact(cx, |this, cx| {
5894 this.buffer.update(cx, |buffer, cx| {
5895 let empty_str: Arc<str> = Arc::default();
5896 buffer.edit(
5897 deletion_ranges
5898 .into_iter()
5899 .map(|range| (range, empty_str.clone())),
5900 None,
5901 cx,
5902 );
5903 });
5904 let selections = this.selections.all::<usize>(cx);
5905 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5906 });
5907 }
5908
5909 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5910 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5911 let selections = self.selections.all::<Point>(cx);
5912
5913 let mut new_cursors = Vec::new();
5914 let mut edit_ranges = Vec::new();
5915 let mut selections = selections.iter().peekable();
5916 while let Some(selection) = selections.next() {
5917 let mut rows = selection.spanned_rows(false, &display_map);
5918 let goal_display_column = selection.head().to_display_point(&display_map).column();
5919
5920 // Accumulate contiguous regions of rows that we want to delete.
5921 while let Some(next_selection) = selections.peek() {
5922 let next_rows = next_selection.spanned_rows(false, &display_map);
5923 if next_rows.start <= rows.end {
5924 rows.end = next_rows.end;
5925 selections.next().unwrap();
5926 } else {
5927 break;
5928 }
5929 }
5930
5931 let buffer = &display_map.buffer_snapshot;
5932 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5933 let edit_end;
5934 let cursor_buffer_row;
5935 if buffer.max_point().row >= rows.end.0 {
5936 // If there's a line after the range, delete the \n from the end of the row range
5937 // and position the cursor on the next line.
5938 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5939 cursor_buffer_row = rows.end;
5940 } else {
5941 // If there isn't a line after the range, delete the \n from the line before the
5942 // start of the row range and position the cursor there.
5943 edit_start = edit_start.saturating_sub(1);
5944 edit_end = buffer.len();
5945 cursor_buffer_row = rows.start.previous_row();
5946 }
5947
5948 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5949 *cursor.column_mut() =
5950 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5951
5952 new_cursors.push((
5953 selection.id,
5954 buffer.anchor_after(cursor.to_point(&display_map)),
5955 ));
5956 edit_ranges.push(edit_start..edit_end);
5957 }
5958
5959 self.transact(cx, |this, cx| {
5960 let buffer = this.buffer.update(cx, |buffer, cx| {
5961 let empty_str: Arc<str> = Arc::default();
5962 buffer.edit(
5963 edit_ranges
5964 .into_iter()
5965 .map(|range| (range, empty_str.clone())),
5966 None,
5967 cx,
5968 );
5969 buffer.snapshot(cx)
5970 });
5971 let new_selections = new_cursors
5972 .into_iter()
5973 .map(|(id, cursor)| {
5974 let cursor = cursor.to_point(&buffer);
5975 Selection {
5976 id,
5977 start: cursor,
5978 end: cursor,
5979 reversed: false,
5980 goal: SelectionGoal::None,
5981 }
5982 })
5983 .collect();
5984
5985 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5986 s.select(new_selections);
5987 });
5988 });
5989 }
5990
5991 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5992 if self.read_only(cx) {
5993 return;
5994 }
5995 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5996 for selection in self.selections.all::<Point>(cx) {
5997 let start = MultiBufferRow(selection.start.row);
5998 let end = if selection.start.row == selection.end.row {
5999 MultiBufferRow(selection.start.row + 1)
6000 } else {
6001 MultiBufferRow(selection.end.row)
6002 };
6003
6004 if let Some(last_row_range) = row_ranges.last_mut() {
6005 if start <= last_row_range.end {
6006 last_row_range.end = end;
6007 continue;
6008 }
6009 }
6010 row_ranges.push(start..end);
6011 }
6012
6013 let snapshot = self.buffer.read(cx).snapshot(cx);
6014 let mut cursor_positions = Vec::new();
6015 for row_range in &row_ranges {
6016 let anchor = snapshot.anchor_before(Point::new(
6017 row_range.end.previous_row().0,
6018 snapshot.line_len(row_range.end.previous_row()),
6019 ));
6020 cursor_positions.push(anchor..anchor);
6021 }
6022
6023 self.transact(cx, |this, cx| {
6024 for row_range in row_ranges.into_iter().rev() {
6025 for row in row_range.iter_rows().rev() {
6026 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6027 let next_line_row = row.next_row();
6028 let indent = snapshot.indent_size_for_line(next_line_row);
6029 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6030
6031 let replace = if snapshot.line_len(next_line_row) > indent.len {
6032 " "
6033 } else {
6034 ""
6035 };
6036
6037 this.buffer.update(cx, |buffer, cx| {
6038 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6039 });
6040 }
6041 }
6042
6043 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6044 s.select_anchor_ranges(cursor_positions)
6045 });
6046 });
6047 }
6048
6049 pub fn sort_lines_case_sensitive(
6050 &mut self,
6051 _: &SortLinesCaseSensitive,
6052 cx: &mut ViewContext<Self>,
6053 ) {
6054 self.manipulate_lines(cx, |lines| lines.sort())
6055 }
6056
6057 pub fn sort_lines_case_insensitive(
6058 &mut self,
6059 _: &SortLinesCaseInsensitive,
6060 cx: &mut ViewContext<Self>,
6061 ) {
6062 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6063 }
6064
6065 pub fn unique_lines_case_insensitive(
6066 &mut self,
6067 _: &UniqueLinesCaseInsensitive,
6068 cx: &mut ViewContext<Self>,
6069 ) {
6070 self.manipulate_lines(cx, |lines| {
6071 let mut seen = HashSet::default();
6072 lines.retain(|line| seen.insert(line.to_lowercase()));
6073 })
6074 }
6075
6076 pub fn unique_lines_case_sensitive(
6077 &mut self,
6078 _: &UniqueLinesCaseSensitive,
6079 cx: &mut ViewContext<Self>,
6080 ) {
6081 self.manipulate_lines(cx, |lines| {
6082 let mut seen = HashSet::default();
6083 lines.retain(|line| seen.insert(*line));
6084 })
6085 }
6086
6087 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6088 let mut revert_changes = HashMap::default();
6089 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6090 for hunk in hunks_for_rows(
6091 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6092 &multi_buffer_snapshot,
6093 ) {
6094 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6095 }
6096 if !revert_changes.is_empty() {
6097 self.transact(cx, |editor, cx| {
6098 editor.revert(revert_changes, cx);
6099 });
6100 }
6101 }
6102
6103 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6104 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6105 if !revert_changes.is_empty() {
6106 self.transact(cx, |editor, cx| {
6107 editor.revert(revert_changes, cx);
6108 });
6109 }
6110 }
6111
6112 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6113 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6114 let project_path = buffer.read(cx).project_path(cx)?;
6115 let project = self.project.as_ref()?.read(cx);
6116 let entry = project.entry_for_path(&project_path, cx)?;
6117 let abs_path = project.absolute_path(&project_path, cx)?;
6118 let parent = if entry.is_symlink {
6119 abs_path.canonicalize().ok()?
6120 } else {
6121 abs_path
6122 }
6123 .parent()?
6124 .to_path_buf();
6125 Some(parent)
6126 }) {
6127 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6128 }
6129 }
6130
6131 fn gather_revert_changes(
6132 &mut self,
6133 selections: &[Selection<Anchor>],
6134 cx: &mut ViewContext<'_, Editor>,
6135 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6136 let mut revert_changes = HashMap::default();
6137 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6138 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6139 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6140 }
6141 revert_changes
6142 }
6143
6144 pub fn prepare_revert_change(
6145 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6146 multi_buffer: &Model<MultiBuffer>,
6147 hunk: &DiffHunk<MultiBufferRow>,
6148 cx: &AppContext,
6149 ) -> Option<()> {
6150 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6151 let buffer = buffer.read(cx);
6152 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6153 let buffer_snapshot = buffer.snapshot();
6154 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6155 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6156 probe
6157 .0
6158 .start
6159 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6160 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6161 }) {
6162 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6163 Some(())
6164 } else {
6165 None
6166 }
6167 }
6168
6169 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6170 self.manipulate_lines(cx, |lines| lines.reverse())
6171 }
6172
6173 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6174 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6175 }
6176
6177 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6178 where
6179 Fn: FnMut(&mut Vec<&str>),
6180 {
6181 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6182 let buffer = self.buffer.read(cx).snapshot(cx);
6183
6184 let mut edits = Vec::new();
6185
6186 let selections = self.selections.all::<Point>(cx);
6187 let mut selections = selections.iter().peekable();
6188 let mut contiguous_row_selections = Vec::new();
6189 let mut new_selections = Vec::new();
6190 let mut added_lines = 0;
6191 let mut removed_lines = 0;
6192
6193 while let Some(selection) = selections.next() {
6194 let (start_row, end_row) = consume_contiguous_rows(
6195 &mut contiguous_row_selections,
6196 selection,
6197 &display_map,
6198 &mut selections,
6199 );
6200
6201 let start_point = Point::new(start_row.0, 0);
6202 let end_point = Point::new(
6203 end_row.previous_row().0,
6204 buffer.line_len(end_row.previous_row()),
6205 );
6206 let text = buffer
6207 .text_for_range(start_point..end_point)
6208 .collect::<String>();
6209
6210 let mut lines = text.split('\n').collect_vec();
6211
6212 let lines_before = lines.len();
6213 callback(&mut lines);
6214 let lines_after = lines.len();
6215
6216 edits.push((start_point..end_point, lines.join("\n")));
6217
6218 // Selections must change based on added and removed line count
6219 let start_row =
6220 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6221 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6222 new_selections.push(Selection {
6223 id: selection.id,
6224 start: start_row,
6225 end: end_row,
6226 goal: SelectionGoal::None,
6227 reversed: selection.reversed,
6228 });
6229
6230 if lines_after > lines_before {
6231 added_lines += lines_after - lines_before;
6232 } else if lines_before > lines_after {
6233 removed_lines += lines_before - lines_after;
6234 }
6235 }
6236
6237 self.transact(cx, |this, cx| {
6238 let buffer = this.buffer.update(cx, |buffer, cx| {
6239 buffer.edit(edits, None, cx);
6240 buffer.snapshot(cx)
6241 });
6242
6243 // Recalculate offsets on newly edited buffer
6244 let new_selections = new_selections
6245 .iter()
6246 .map(|s| {
6247 let start_point = Point::new(s.start.0, 0);
6248 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6249 Selection {
6250 id: s.id,
6251 start: buffer.point_to_offset(start_point),
6252 end: buffer.point_to_offset(end_point),
6253 goal: s.goal,
6254 reversed: s.reversed,
6255 }
6256 })
6257 .collect();
6258
6259 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6260 s.select(new_selections);
6261 });
6262
6263 this.request_autoscroll(Autoscroll::fit(), cx);
6264 });
6265 }
6266
6267 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6268 self.manipulate_text(cx, |text| text.to_uppercase())
6269 }
6270
6271 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6272 self.manipulate_text(cx, |text| text.to_lowercase())
6273 }
6274
6275 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6276 self.manipulate_text(cx, |text| {
6277 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6278 // https://github.com/rutrum/convert-case/issues/16
6279 text.split('\n')
6280 .map(|line| line.to_case(Case::Title))
6281 .join("\n")
6282 })
6283 }
6284
6285 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6286 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6287 }
6288
6289 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6290 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6291 }
6292
6293 pub fn convert_to_upper_camel_case(
6294 &mut self,
6295 _: &ConvertToUpperCamelCase,
6296 cx: &mut ViewContext<Self>,
6297 ) {
6298 self.manipulate_text(cx, |text| {
6299 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6300 // https://github.com/rutrum/convert-case/issues/16
6301 text.split('\n')
6302 .map(|line| line.to_case(Case::UpperCamel))
6303 .join("\n")
6304 })
6305 }
6306
6307 pub fn convert_to_lower_camel_case(
6308 &mut self,
6309 _: &ConvertToLowerCamelCase,
6310 cx: &mut ViewContext<Self>,
6311 ) {
6312 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6313 }
6314
6315 pub fn convert_to_opposite_case(
6316 &mut self,
6317 _: &ConvertToOppositeCase,
6318 cx: &mut ViewContext<Self>,
6319 ) {
6320 self.manipulate_text(cx, |text| {
6321 text.chars()
6322 .fold(String::with_capacity(text.len()), |mut t, c| {
6323 if c.is_uppercase() {
6324 t.extend(c.to_lowercase());
6325 } else {
6326 t.extend(c.to_uppercase());
6327 }
6328 t
6329 })
6330 })
6331 }
6332
6333 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6334 where
6335 Fn: FnMut(&str) -> String,
6336 {
6337 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6338 let buffer = self.buffer.read(cx).snapshot(cx);
6339
6340 let mut new_selections = Vec::new();
6341 let mut edits = Vec::new();
6342 let mut selection_adjustment = 0i32;
6343
6344 for selection in self.selections.all::<usize>(cx) {
6345 let selection_is_empty = selection.is_empty();
6346
6347 let (start, end) = if selection_is_empty {
6348 let word_range = movement::surrounding_word(
6349 &display_map,
6350 selection.start.to_display_point(&display_map),
6351 );
6352 let start = word_range.start.to_offset(&display_map, Bias::Left);
6353 let end = word_range.end.to_offset(&display_map, Bias::Left);
6354 (start, end)
6355 } else {
6356 (selection.start, selection.end)
6357 };
6358
6359 let text = buffer.text_for_range(start..end).collect::<String>();
6360 let old_length = text.len() as i32;
6361 let text = callback(&text);
6362
6363 new_selections.push(Selection {
6364 start: (start as i32 - selection_adjustment) as usize,
6365 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6366 goal: SelectionGoal::None,
6367 ..selection
6368 });
6369
6370 selection_adjustment += old_length - text.len() as i32;
6371
6372 edits.push((start..end, text));
6373 }
6374
6375 self.transact(cx, |this, cx| {
6376 this.buffer.update(cx, |buffer, cx| {
6377 buffer.edit(edits, None, cx);
6378 });
6379
6380 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6381 s.select(new_selections);
6382 });
6383
6384 this.request_autoscroll(Autoscroll::fit(), cx);
6385 });
6386 }
6387
6388 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6389 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6390 let buffer = &display_map.buffer_snapshot;
6391 let selections = self.selections.all::<Point>(cx);
6392
6393 let mut edits = Vec::new();
6394 let mut selections_iter = selections.iter().peekable();
6395 while let Some(selection) = selections_iter.next() {
6396 // Avoid duplicating the same lines twice.
6397 let mut rows = selection.spanned_rows(false, &display_map);
6398
6399 while let Some(next_selection) = selections_iter.peek() {
6400 let next_rows = next_selection.spanned_rows(false, &display_map);
6401 if next_rows.start < rows.end {
6402 rows.end = next_rows.end;
6403 selections_iter.next().unwrap();
6404 } else {
6405 break;
6406 }
6407 }
6408
6409 // Copy the text from the selected row region and splice it either at the start
6410 // or end of the region.
6411 let start = Point::new(rows.start.0, 0);
6412 let end = Point::new(
6413 rows.end.previous_row().0,
6414 buffer.line_len(rows.end.previous_row()),
6415 );
6416 let text = buffer
6417 .text_for_range(start..end)
6418 .chain(Some("\n"))
6419 .collect::<String>();
6420 let insert_location = if upwards {
6421 Point::new(rows.end.0, 0)
6422 } else {
6423 start
6424 };
6425 edits.push((insert_location..insert_location, text));
6426 }
6427
6428 self.transact(cx, |this, cx| {
6429 this.buffer.update(cx, |buffer, cx| {
6430 buffer.edit(edits, None, cx);
6431 });
6432
6433 this.request_autoscroll(Autoscroll::fit(), cx);
6434 });
6435 }
6436
6437 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6438 self.duplicate_line(true, cx);
6439 }
6440
6441 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6442 self.duplicate_line(false, cx);
6443 }
6444
6445 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6446 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6447 let buffer = self.buffer.read(cx).snapshot(cx);
6448
6449 let mut edits = Vec::new();
6450 let mut unfold_ranges = Vec::new();
6451 let mut refold_ranges = Vec::new();
6452
6453 let selections = self.selections.all::<Point>(cx);
6454 let mut selections = selections.iter().peekable();
6455 let mut contiguous_row_selections = Vec::new();
6456 let mut new_selections = Vec::new();
6457
6458 while let Some(selection) = selections.next() {
6459 // Find all the selections that span a contiguous row range
6460 let (start_row, end_row) = consume_contiguous_rows(
6461 &mut contiguous_row_selections,
6462 selection,
6463 &display_map,
6464 &mut selections,
6465 );
6466
6467 // Move the text spanned by the row range to be before the line preceding the row range
6468 if start_row.0 > 0 {
6469 let range_to_move = Point::new(
6470 start_row.previous_row().0,
6471 buffer.line_len(start_row.previous_row()),
6472 )
6473 ..Point::new(
6474 end_row.previous_row().0,
6475 buffer.line_len(end_row.previous_row()),
6476 );
6477 let insertion_point = display_map
6478 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6479 .0;
6480
6481 // Don't move lines across excerpts
6482 if buffer
6483 .excerpt_boundaries_in_range((
6484 Bound::Excluded(insertion_point),
6485 Bound::Included(range_to_move.end),
6486 ))
6487 .next()
6488 .is_none()
6489 {
6490 let text = buffer
6491 .text_for_range(range_to_move.clone())
6492 .flat_map(|s| s.chars())
6493 .skip(1)
6494 .chain(['\n'])
6495 .collect::<String>();
6496
6497 edits.push((
6498 buffer.anchor_after(range_to_move.start)
6499 ..buffer.anchor_before(range_to_move.end),
6500 String::new(),
6501 ));
6502 let insertion_anchor = buffer.anchor_after(insertion_point);
6503 edits.push((insertion_anchor..insertion_anchor, text));
6504
6505 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6506
6507 // Move selections up
6508 new_selections.extend(contiguous_row_selections.drain(..).map(
6509 |mut selection| {
6510 selection.start.row -= row_delta;
6511 selection.end.row -= row_delta;
6512 selection
6513 },
6514 ));
6515
6516 // Move folds up
6517 unfold_ranges.push(range_to_move.clone());
6518 for fold in display_map.folds_in_range(
6519 buffer.anchor_before(range_to_move.start)
6520 ..buffer.anchor_after(range_to_move.end),
6521 ) {
6522 let mut start = fold.range.start.to_point(&buffer);
6523 let mut end = fold.range.end.to_point(&buffer);
6524 start.row -= row_delta;
6525 end.row -= row_delta;
6526 refold_ranges.push((start..end, fold.placeholder.clone()));
6527 }
6528 }
6529 }
6530
6531 // If we didn't move line(s), preserve the existing selections
6532 new_selections.append(&mut contiguous_row_selections);
6533 }
6534
6535 self.transact(cx, |this, cx| {
6536 this.unfold_ranges(unfold_ranges, true, true, cx);
6537 this.buffer.update(cx, |buffer, cx| {
6538 for (range, text) in edits {
6539 buffer.edit([(range, text)], None, cx);
6540 }
6541 });
6542 this.fold_ranges(refold_ranges, true, cx);
6543 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6544 s.select(new_selections);
6545 })
6546 });
6547 }
6548
6549 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6550 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6551 let buffer = self.buffer.read(cx).snapshot(cx);
6552
6553 let mut edits = Vec::new();
6554 let mut unfold_ranges = Vec::new();
6555 let mut refold_ranges = Vec::new();
6556
6557 let selections = self.selections.all::<Point>(cx);
6558 let mut selections = selections.iter().peekable();
6559 let mut contiguous_row_selections = Vec::new();
6560 let mut new_selections = Vec::new();
6561
6562 while let Some(selection) = selections.next() {
6563 // Find all the selections that span a contiguous row range
6564 let (start_row, end_row) = consume_contiguous_rows(
6565 &mut contiguous_row_selections,
6566 selection,
6567 &display_map,
6568 &mut selections,
6569 );
6570
6571 // Move the text spanned by the row range to be after the last line of the row range
6572 if end_row.0 <= buffer.max_point().row {
6573 let range_to_move =
6574 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6575 let insertion_point = display_map
6576 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6577 .0;
6578
6579 // Don't move lines across excerpt boundaries
6580 if buffer
6581 .excerpt_boundaries_in_range((
6582 Bound::Excluded(range_to_move.start),
6583 Bound::Included(insertion_point),
6584 ))
6585 .next()
6586 .is_none()
6587 {
6588 let mut text = String::from("\n");
6589 text.extend(buffer.text_for_range(range_to_move.clone()));
6590 text.pop(); // Drop trailing newline
6591 edits.push((
6592 buffer.anchor_after(range_to_move.start)
6593 ..buffer.anchor_before(range_to_move.end),
6594 String::new(),
6595 ));
6596 let insertion_anchor = buffer.anchor_after(insertion_point);
6597 edits.push((insertion_anchor..insertion_anchor, text));
6598
6599 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6600
6601 // Move selections down
6602 new_selections.extend(contiguous_row_selections.drain(..).map(
6603 |mut selection| {
6604 selection.start.row += row_delta;
6605 selection.end.row += row_delta;
6606 selection
6607 },
6608 ));
6609
6610 // Move folds down
6611 unfold_ranges.push(range_to_move.clone());
6612 for fold in display_map.folds_in_range(
6613 buffer.anchor_before(range_to_move.start)
6614 ..buffer.anchor_after(range_to_move.end),
6615 ) {
6616 let mut start = fold.range.start.to_point(&buffer);
6617 let mut end = fold.range.end.to_point(&buffer);
6618 start.row += row_delta;
6619 end.row += row_delta;
6620 refold_ranges.push((start..end, fold.placeholder.clone()));
6621 }
6622 }
6623 }
6624
6625 // If we didn't move line(s), preserve the existing selections
6626 new_selections.append(&mut contiguous_row_selections);
6627 }
6628
6629 self.transact(cx, |this, cx| {
6630 this.unfold_ranges(unfold_ranges, true, true, cx);
6631 this.buffer.update(cx, |buffer, cx| {
6632 for (range, text) in edits {
6633 buffer.edit([(range, text)], None, cx);
6634 }
6635 });
6636 this.fold_ranges(refold_ranges, true, cx);
6637 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6638 });
6639 }
6640
6641 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6642 let text_layout_details = &self.text_layout_details(cx);
6643 self.transact(cx, |this, cx| {
6644 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6645 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6646 let line_mode = s.line_mode;
6647 s.move_with(|display_map, selection| {
6648 if !selection.is_empty() || line_mode {
6649 return;
6650 }
6651
6652 let mut head = selection.head();
6653 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6654 if head.column() == display_map.line_len(head.row()) {
6655 transpose_offset = display_map
6656 .buffer_snapshot
6657 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6658 }
6659
6660 if transpose_offset == 0 {
6661 return;
6662 }
6663
6664 *head.column_mut() += 1;
6665 head = display_map.clip_point(head, Bias::Right);
6666 let goal = SelectionGoal::HorizontalPosition(
6667 display_map
6668 .x_for_display_point(head, text_layout_details)
6669 .into(),
6670 );
6671 selection.collapse_to(head, goal);
6672
6673 let transpose_start = display_map
6674 .buffer_snapshot
6675 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6676 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6677 let transpose_end = display_map
6678 .buffer_snapshot
6679 .clip_offset(transpose_offset + 1, Bias::Right);
6680 if let Some(ch) =
6681 display_map.buffer_snapshot.chars_at(transpose_start).next()
6682 {
6683 edits.push((transpose_start..transpose_offset, String::new()));
6684 edits.push((transpose_end..transpose_end, ch.to_string()));
6685 }
6686 }
6687 });
6688 edits
6689 });
6690 this.buffer
6691 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6692 let selections = this.selections.all::<usize>(cx);
6693 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6694 s.select(selections);
6695 });
6696 });
6697 }
6698
6699 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6700 let buffer = self.buffer.read(cx).snapshot(cx);
6701 let selections = self.selections.all::<Point>(cx);
6702 let mut selections = selections.iter().peekable();
6703
6704 let mut edits = Vec::new();
6705 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6706
6707 while let Some(selection) = selections.next() {
6708 let mut start_row = selection.start.row;
6709 let mut end_row = selection.end.row;
6710
6711 // Skip selections that overlap with a range that has already been rewrapped.
6712 let selection_range = start_row..end_row;
6713 if rewrapped_row_ranges
6714 .iter()
6715 .any(|range| range.overlaps(&selection_range))
6716 {
6717 continue;
6718 }
6719
6720 let mut should_rewrap = false;
6721
6722 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6723 match language_scope.language_name().0.as_ref() {
6724 "Markdown" | "Plain Text" => {
6725 should_rewrap = true;
6726 }
6727 _ => {}
6728 }
6729 }
6730
6731 let row = selection.head().row;
6732 let indent_size = buffer.indent_size_for_line(MultiBufferRow(row));
6733 let indent_end = Point::new(row, indent_size.len);
6734
6735 let mut line_prefix = indent_size.chars().collect::<String>();
6736
6737 if selection.is_empty() {
6738 if let Some(comment_prefix) =
6739 buffer
6740 .language_scope_at(selection.head())
6741 .and_then(|language| {
6742 language
6743 .line_comment_prefixes()
6744 .iter()
6745 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6746 .cloned()
6747 })
6748 {
6749 line_prefix.push_str(&comment_prefix);
6750 should_rewrap = true;
6751 }
6752
6753 'expand_upwards: while start_row > 0 {
6754 let prev_row = start_row - 1;
6755 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6756 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6757 {
6758 start_row = prev_row;
6759 } else {
6760 break 'expand_upwards;
6761 }
6762 }
6763
6764 'expand_downwards: while end_row < buffer.max_point().row {
6765 let next_row = end_row + 1;
6766 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6767 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6768 {
6769 end_row = next_row;
6770 } else {
6771 break 'expand_downwards;
6772 }
6773 }
6774 }
6775
6776 if !should_rewrap {
6777 continue;
6778 }
6779
6780 let start = Point::new(start_row, 0);
6781 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6782 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6783 let unwrapped_text = selection_text
6784 .lines()
6785 .map(|line| line.strip_prefix(&line_prefix).unwrap())
6786 .join(" ");
6787 let wrap_column = buffer
6788 .settings_at(Point::new(start_row, 0), cx)
6789 .preferred_line_length as usize;
6790 let mut wrapped_text = String::new();
6791 let mut current_line = line_prefix.clone();
6792 for word in unwrapped_text.split_whitespace() {
6793 if current_line.len() + word.len() >= wrap_column {
6794 wrapped_text.push_str(¤t_line);
6795 wrapped_text.push('\n');
6796 current_line.truncate(line_prefix.len());
6797 }
6798
6799 if current_line.len() > line_prefix.len() {
6800 current_line.push(' ');
6801 }
6802
6803 current_line.push_str(word);
6804 }
6805
6806 if !current_line.is_empty() {
6807 wrapped_text.push_str(¤t_line);
6808 }
6809
6810 let diff = TextDiff::from_lines(&selection_text, &wrapped_text);
6811 let mut offset = start.to_offset(&buffer);
6812 let mut moved_since_edit = true;
6813
6814 for change in diff.iter_all_changes() {
6815 let value = change.value();
6816 match change.tag() {
6817 ChangeTag::Equal => {
6818 offset += value.len();
6819 moved_since_edit = true;
6820 }
6821 ChangeTag::Delete => {
6822 let start = buffer.anchor_after(offset);
6823 let end = buffer.anchor_before(offset + value.len());
6824
6825 if moved_since_edit {
6826 edits.push((start..end, String::new()));
6827 } else {
6828 edits.last_mut().unwrap().0.end = end;
6829 }
6830
6831 offset += value.len();
6832 moved_since_edit = false;
6833 }
6834 ChangeTag::Insert => {
6835 if moved_since_edit {
6836 let anchor = buffer.anchor_after(offset);
6837 edits.push((anchor..anchor, value.to_string()));
6838 } else {
6839 edits.last_mut().unwrap().1.push_str(value);
6840 }
6841
6842 moved_since_edit = false;
6843 }
6844 }
6845 }
6846
6847 rewrapped_row_ranges.push(start_row..=end_row);
6848 }
6849
6850 self.buffer
6851 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6852 }
6853
6854 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6855 let mut text = String::new();
6856 let buffer = self.buffer.read(cx).snapshot(cx);
6857 let mut selections = self.selections.all::<Point>(cx);
6858 let mut clipboard_selections = Vec::with_capacity(selections.len());
6859 {
6860 let max_point = buffer.max_point();
6861 let mut is_first = true;
6862 for selection in &mut selections {
6863 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6864 if is_entire_line {
6865 selection.start = Point::new(selection.start.row, 0);
6866 if !selection.is_empty() && selection.end.column == 0 {
6867 selection.end = cmp::min(max_point, selection.end);
6868 } else {
6869 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6870 }
6871 selection.goal = SelectionGoal::None;
6872 }
6873 if is_first {
6874 is_first = false;
6875 } else {
6876 text += "\n";
6877 }
6878 let mut len = 0;
6879 for chunk in buffer.text_for_range(selection.start..selection.end) {
6880 text.push_str(chunk);
6881 len += chunk.len();
6882 }
6883 clipboard_selections.push(ClipboardSelection {
6884 len,
6885 is_entire_line,
6886 first_line_indent: buffer
6887 .indent_size_for_line(MultiBufferRow(selection.start.row))
6888 .len,
6889 });
6890 }
6891 }
6892
6893 self.transact(cx, |this, cx| {
6894 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6895 s.select(selections);
6896 });
6897 this.insert("", cx);
6898 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6899 text,
6900 clipboard_selections,
6901 ));
6902 });
6903 }
6904
6905 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6906 let selections = self.selections.all::<Point>(cx);
6907 let buffer = self.buffer.read(cx).read(cx);
6908 let mut text = String::new();
6909
6910 let mut clipboard_selections = Vec::with_capacity(selections.len());
6911 {
6912 let max_point = buffer.max_point();
6913 let mut is_first = true;
6914 for selection in selections.iter() {
6915 let mut start = selection.start;
6916 let mut end = selection.end;
6917 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6918 if is_entire_line {
6919 start = Point::new(start.row, 0);
6920 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6921 }
6922 if is_first {
6923 is_first = false;
6924 } else {
6925 text += "\n";
6926 }
6927 let mut len = 0;
6928 for chunk in buffer.text_for_range(start..end) {
6929 text.push_str(chunk);
6930 len += chunk.len();
6931 }
6932 clipboard_selections.push(ClipboardSelection {
6933 len,
6934 is_entire_line,
6935 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6936 });
6937 }
6938 }
6939
6940 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6941 text,
6942 clipboard_selections,
6943 ));
6944 }
6945
6946 pub fn do_paste(
6947 &mut self,
6948 text: &String,
6949 clipboard_selections: Option<Vec<ClipboardSelection>>,
6950 handle_entire_lines: bool,
6951 cx: &mut ViewContext<Self>,
6952 ) {
6953 if self.read_only(cx) {
6954 return;
6955 }
6956
6957 let clipboard_text = Cow::Borrowed(text);
6958
6959 self.transact(cx, |this, cx| {
6960 if let Some(mut clipboard_selections) = clipboard_selections {
6961 let old_selections = this.selections.all::<usize>(cx);
6962 let all_selections_were_entire_line =
6963 clipboard_selections.iter().all(|s| s.is_entire_line);
6964 let first_selection_indent_column =
6965 clipboard_selections.first().map(|s| s.first_line_indent);
6966 if clipboard_selections.len() != old_selections.len() {
6967 clipboard_selections.drain(..);
6968 }
6969
6970 this.buffer.update(cx, |buffer, cx| {
6971 let snapshot = buffer.read(cx);
6972 let mut start_offset = 0;
6973 let mut edits = Vec::new();
6974 let mut original_indent_columns = Vec::new();
6975 for (ix, selection) in old_selections.iter().enumerate() {
6976 let to_insert;
6977 let entire_line;
6978 let original_indent_column;
6979 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6980 let end_offset = start_offset + clipboard_selection.len;
6981 to_insert = &clipboard_text[start_offset..end_offset];
6982 entire_line = clipboard_selection.is_entire_line;
6983 start_offset = end_offset + 1;
6984 original_indent_column = Some(clipboard_selection.first_line_indent);
6985 } else {
6986 to_insert = clipboard_text.as_str();
6987 entire_line = all_selections_were_entire_line;
6988 original_indent_column = first_selection_indent_column
6989 }
6990
6991 // If the corresponding selection was empty when this slice of the
6992 // clipboard text was written, then the entire line containing the
6993 // selection was copied. If this selection is also currently empty,
6994 // then paste the line before the current line of the buffer.
6995 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6996 let column = selection.start.to_point(&snapshot).column as usize;
6997 let line_start = selection.start - column;
6998 line_start..line_start
6999 } else {
7000 selection.range()
7001 };
7002
7003 edits.push((range, to_insert));
7004 original_indent_columns.extend(original_indent_column);
7005 }
7006 drop(snapshot);
7007
7008 buffer.edit(
7009 edits,
7010 Some(AutoindentMode::Block {
7011 original_indent_columns,
7012 }),
7013 cx,
7014 );
7015 });
7016
7017 let selections = this.selections.all::<usize>(cx);
7018 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7019 } else {
7020 this.insert(&clipboard_text, cx);
7021 }
7022 });
7023 }
7024
7025 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7026 if let Some(item) = cx.read_from_clipboard() {
7027 let entries = item.entries();
7028
7029 match entries.first() {
7030 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7031 // of all the pasted entries.
7032 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7033 .do_paste(
7034 clipboard_string.text(),
7035 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7036 true,
7037 cx,
7038 ),
7039 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7040 }
7041 }
7042 }
7043
7044 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7045 if self.read_only(cx) {
7046 return;
7047 }
7048
7049 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7050 if let Some((selections, _)) =
7051 self.selection_history.transaction(transaction_id).cloned()
7052 {
7053 self.change_selections(None, cx, |s| {
7054 s.select_anchors(selections.to_vec());
7055 });
7056 }
7057 self.request_autoscroll(Autoscroll::fit(), cx);
7058 self.unmark_text(cx);
7059 self.refresh_inline_completion(true, false, cx);
7060 cx.emit(EditorEvent::Edited { transaction_id });
7061 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7062 }
7063 }
7064
7065 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7066 if self.read_only(cx) {
7067 return;
7068 }
7069
7070 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7071 if let Some((_, Some(selections))) =
7072 self.selection_history.transaction(transaction_id).cloned()
7073 {
7074 self.change_selections(None, cx, |s| {
7075 s.select_anchors(selections.to_vec());
7076 });
7077 }
7078 self.request_autoscroll(Autoscroll::fit(), cx);
7079 self.unmark_text(cx);
7080 self.refresh_inline_completion(true, false, cx);
7081 cx.emit(EditorEvent::Edited { transaction_id });
7082 }
7083 }
7084
7085 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7086 self.buffer
7087 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7088 }
7089
7090 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7091 self.buffer
7092 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7093 }
7094
7095 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7096 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7097 let line_mode = s.line_mode;
7098 s.move_with(|map, selection| {
7099 let cursor = if selection.is_empty() && !line_mode {
7100 movement::left(map, selection.start)
7101 } else {
7102 selection.start
7103 };
7104 selection.collapse_to(cursor, SelectionGoal::None);
7105 });
7106 })
7107 }
7108
7109 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7110 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7111 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7112 })
7113 }
7114
7115 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7116 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7117 let line_mode = s.line_mode;
7118 s.move_with(|map, selection| {
7119 let cursor = if selection.is_empty() && !line_mode {
7120 movement::right(map, selection.end)
7121 } else {
7122 selection.end
7123 };
7124 selection.collapse_to(cursor, SelectionGoal::None)
7125 });
7126 })
7127 }
7128
7129 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7130 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7131 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7132 })
7133 }
7134
7135 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7136 if self.take_rename(true, cx).is_some() {
7137 return;
7138 }
7139
7140 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7141 cx.propagate();
7142 return;
7143 }
7144
7145 let text_layout_details = &self.text_layout_details(cx);
7146 let selection_count = self.selections.count();
7147 let first_selection = self.selections.first_anchor();
7148
7149 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7150 let line_mode = s.line_mode;
7151 s.move_with(|map, selection| {
7152 if !selection.is_empty() && !line_mode {
7153 selection.goal = SelectionGoal::None;
7154 }
7155 let (cursor, goal) = movement::up(
7156 map,
7157 selection.start,
7158 selection.goal,
7159 false,
7160 text_layout_details,
7161 );
7162 selection.collapse_to(cursor, goal);
7163 });
7164 });
7165
7166 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7167 {
7168 cx.propagate();
7169 }
7170 }
7171
7172 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7173 if self.take_rename(true, cx).is_some() {
7174 return;
7175 }
7176
7177 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7178 cx.propagate();
7179 return;
7180 }
7181
7182 let text_layout_details = &self.text_layout_details(cx);
7183
7184 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7185 let line_mode = s.line_mode;
7186 s.move_with(|map, selection| {
7187 if !selection.is_empty() && !line_mode {
7188 selection.goal = SelectionGoal::None;
7189 }
7190 let (cursor, goal) = movement::up_by_rows(
7191 map,
7192 selection.start,
7193 action.lines,
7194 selection.goal,
7195 false,
7196 text_layout_details,
7197 );
7198 selection.collapse_to(cursor, goal);
7199 });
7200 })
7201 }
7202
7203 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7204 if self.take_rename(true, cx).is_some() {
7205 return;
7206 }
7207
7208 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7209 cx.propagate();
7210 return;
7211 }
7212
7213 let text_layout_details = &self.text_layout_details(cx);
7214
7215 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7216 let line_mode = s.line_mode;
7217 s.move_with(|map, selection| {
7218 if !selection.is_empty() && !line_mode {
7219 selection.goal = SelectionGoal::None;
7220 }
7221 let (cursor, goal) = movement::down_by_rows(
7222 map,
7223 selection.start,
7224 action.lines,
7225 selection.goal,
7226 false,
7227 text_layout_details,
7228 );
7229 selection.collapse_to(cursor, goal);
7230 });
7231 })
7232 }
7233
7234 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7235 let text_layout_details = &self.text_layout_details(cx);
7236 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7237 s.move_heads_with(|map, head, goal| {
7238 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7239 })
7240 })
7241 }
7242
7243 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7244 let text_layout_details = &self.text_layout_details(cx);
7245 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7246 s.move_heads_with(|map, head, goal| {
7247 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7248 })
7249 })
7250 }
7251
7252 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7253 let Some(row_count) = self.visible_row_count() else {
7254 return;
7255 };
7256
7257 let text_layout_details = &self.text_layout_details(cx);
7258
7259 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7260 s.move_heads_with(|map, head, goal| {
7261 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7262 })
7263 })
7264 }
7265
7266 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7267 if self.take_rename(true, cx).is_some() {
7268 return;
7269 }
7270
7271 if self
7272 .context_menu
7273 .write()
7274 .as_mut()
7275 .map(|menu| menu.select_first(self.project.as_ref(), cx))
7276 .unwrap_or(false)
7277 {
7278 return;
7279 }
7280
7281 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7282 cx.propagate();
7283 return;
7284 }
7285
7286 let Some(row_count) = self.visible_row_count() else {
7287 return;
7288 };
7289
7290 let autoscroll = if action.center_cursor {
7291 Autoscroll::center()
7292 } else {
7293 Autoscroll::fit()
7294 };
7295
7296 let text_layout_details = &self.text_layout_details(cx);
7297
7298 self.change_selections(Some(autoscroll), cx, |s| {
7299 let line_mode = s.line_mode;
7300 s.move_with(|map, selection| {
7301 if !selection.is_empty() && !line_mode {
7302 selection.goal = SelectionGoal::None;
7303 }
7304 let (cursor, goal) = movement::up_by_rows(
7305 map,
7306 selection.end,
7307 row_count,
7308 selection.goal,
7309 false,
7310 text_layout_details,
7311 );
7312 selection.collapse_to(cursor, goal);
7313 });
7314 });
7315 }
7316
7317 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7318 let text_layout_details = &self.text_layout_details(cx);
7319 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7320 s.move_heads_with(|map, head, goal| {
7321 movement::up(map, head, goal, false, text_layout_details)
7322 })
7323 })
7324 }
7325
7326 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7327 self.take_rename(true, cx);
7328
7329 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7330 cx.propagate();
7331 return;
7332 }
7333
7334 let text_layout_details = &self.text_layout_details(cx);
7335 let selection_count = self.selections.count();
7336 let first_selection = self.selections.first_anchor();
7337
7338 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7339 let line_mode = s.line_mode;
7340 s.move_with(|map, selection| {
7341 if !selection.is_empty() && !line_mode {
7342 selection.goal = SelectionGoal::None;
7343 }
7344 let (cursor, goal) = movement::down(
7345 map,
7346 selection.end,
7347 selection.goal,
7348 false,
7349 text_layout_details,
7350 );
7351 selection.collapse_to(cursor, goal);
7352 });
7353 });
7354
7355 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7356 {
7357 cx.propagate();
7358 }
7359 }
7360
7361 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7362 let Some(row_count) = self.visible_row_count() else {
7363 return;
7364 };
7365
7366 let text_layout_details = &self.text_layout_details(cx);
7367
7368 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7369 s.move_heads_with(|map, head, goal| {
7370 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7371 })
7372 })
7373 }
7374
7375 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7376 if self.take_rename(true, cx).is_some() {
7377 return;
7378 }
7379
7380 if self
7381 .context_menu
7382 .write()
7383 .as_mut()
7384 .map(|menu| menu.select_last(self.project.as_ref(), cx))
7385 .unwrap_or(false)
7386 {
7387 return;
7388 }
7389
7390 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7391 cx.propagate();
7392 return;
7393 }
7394
7395 let Some(row_count) = self.visible_row_count() else {
7396 return;
7397 };
7398
7399 let autoscroll = if action.center_cursor {
7400 Autoscroll::center()
7401 } else {
7402 Autoscroll::fit()
7403 };
7404
7405 let text_layout_details = &self.text_layout_details(cx);
7406 self.change_selections(Some(autoscroll), cx, |s| {
7407 let line_mode = s.line_mode;
7408 s.move_with(|map, selection| {
7409 if !selection.is_empty() && !line_mode {
7410 selection.goal = SelectionGoal::None;
7411 }
7412 let (cursor, goal) = movement::down_by_rows(
7413 map,
7414 selection.end,
7415 row_count,
7416 selection.goal,
7417 false,
7418 text_layout_details,
7419 );
7420 selection.collapse_to(cursor, goal);
7421 });
7422 });
7423 }
7424
7425 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7426 let text_layout_details = &self.text_layout_details(cx);
7427 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7428 s.move_heads_with(|map, head, goal| {
7429 movement::down(map, head, goal, false, text_layout_details)
7430 })
7431 });
7432 }
7433
7434 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7435 if let Some(context_menu) = self.context_menu.write().as_mut() {
7436 context_menu.select_first(self.project.as_ref(), cx);
7437 }
7438 }
7439
7440 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7441 if let Some(context_menu) = self.context_menu.write().as_mut() {
7442 context_menu.select_prev(self.project.as_ref(), cx);
7443 }
7444 }
7445
7446 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7447 if let Some(context_menu) = self.context_menu.write().as_mut() {
7448 context_menu.select_next(self.project.as_ref(), cx);
7449 }
7450 }
7451
7452 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7453 if let Some(context_menu) = self.context_menu.write().as_mut() {
7454 context_menu.select_last(self.project.as_ref(), cx);
7455 }
7456 }
7457
7458 pub fn move_to_previous_word_start(
7459 &mut self,
7460 _: &MoveToPreviousWordStart,
7461 cx: &mut ViewContext<Self>,
7462 ) {
7463 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7464 s.move_cursors_with(|map, head, _| {
7465 (
7466 movement::previous_word_start(map, head),
7467 SelectionGoal::None,
7468 )
7469 });
7470 })
7471 }
7472
7473 pub fn move_to_previous_subword_start(
7474 &mut self,
7475 _: &MoveToPreviousSubwordStart,
7476 cx: &mut ViewContext<Self>,
7477 ) {
7478 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7479 s.move_cursors_with(|map, head, _| {
7480 (
7481 movement::previous_subword_start(map, head),
7482 SelectionGoal::None,
7483 )
7484 });
7485 })
7486 }
7487
7488 pub fn select_to_previous_word_start(
7489 &mut self,
7490 _: &SelectToPreviousWordStart,
7491 cx: &mut ViewContext<Self>,
7492 ) {
7493 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7494 s.move_heads_with(|map, head, _| {
7495 (
7496 movement::previous_word_start(map, head),
7497 SelectionGoal::None,
7498 )
7499 });
7500 })
7501 }
7502
7503 pub fn select_to_previous_subword_start(
7504 &mut self,
7505 _: &SelectToPreviousSubwordStart,
7506 cx: &mut ViewContext<Self>,
7507 ) {
7508 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7509 s.move_heads_with(|map, head, _| {
7510 (
7511 movement::previous_subword_start(map, head),
7512 SelectionGoal::None,
7513 )
7514 });
7515 })
7516 }
7517
7518 pub fn delete_to_previous_word_start(
7519 &mut self,
7520 action: &DeleteToPreviousWordStart,
7521 cx: &mut ViewContext<Self>,
7522 ) {
7523 self.transact(cx, |this, cx| {
7524 this.select_autoclose_pair(cx);
7525 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7526 let line_mode = s.line_mode;
7527 s.move_with(|map, selection| {
7528 if selection.is_empty() && !line_mode {
7529 let cursor = if action.ignore_newlines {
7530 movement::previous_word_start(map, selection.head())
7531 } else {
7532 movement::previous_word_start_or_newline(map, selection.head())
7533 };
7534 selection.set_head(cursor, SelectionGoal::None);
7535 }
7536 });
7537 });
7538 this.insert("", cx);
7539 });
7540 }
7541
7542 pub fn delete_to_previous_subword_start(
7543 &mut self,
7544 _: &DeleteToPreviousSubwordStart,
7545 cx: &mut ViewContext<Self>,
7546 ) {
7547 self.transact(cx, |this, cx| {
7548 this.select_autoclose_pair(cx);
7549 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7550 let line_mode = s.line_mode;
7551 s.move_with(|map, selection| {
7552 if selection.is_empty() && !line_mode {
7553 let cursor = movement::previous_subword_start(map, selection.head());
7554 selection.set_head(cursor, SelectionGoal::None);
7555 }
7556 });
7557 });
7558 this.insert("", cx);
7559 });
7560 }
7561
7562 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7563 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7564 s.move_cursors_with(|map, head, _| {
7565 (movement::next_word_end(map, head), SelectionGoal::None)
7566 });
7567 })
7568 }
7569
7570 pub fn move_to_next_subword_end(
7571 &mut self,
7572 _: &MoveToNextSubwordEnd,
7573 cx: &mut ViewContext<Self>,
7574 ) {
7575 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7576 s.move_cursors_with(|map, head, _| {
7577 (movement::next_subword_end(map, head), SelectionGoal::None)
7578 });
7579 })
7580 }
7581
7582 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7583 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7584 s.move_heads_with(|map, head, _| {
7585 (movement::next_word_end(map, head), SelectionGoal::None)
7586 });
7587 })
7588 }
7589
7590 pub fn select_to_next_subword_end(
7591 &mut self,
7592 _: &SelectToNextSubwordEnd,
7593 cx: &mut ViewContext<Self>,
7594 ) {
7595 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7596 s.move_heads_with(|map, head, _| {
7597 (movement::next_subword_end(map, head), SelectionGoal::None)
7598 });
7599 })
7600 }
7601
7602 pub fn delete_to_next_word_end(
7603 &mut self,
7604 action: &DeleteToNextWordEnd,
7605 cx: &mut ViewContext<Self>,
7606 ) {
7607 self.transact(cx, |this, cx| {
7608 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7609 let line_mode = s.line_mode;
7610 s.move_with(|map, selection| {
7611 if selection.is_empty() && !line_mode {
7612 let cursor = if action.ignore_newlines {
7613 movement::next_word_end(map, selection.head())
7614 } else {
7615 movement::next_word_end_or_newline(map, selection.head())
7616 };
7617 selection.set_head(cursor, SelectionGoal::None);
7618 }
7619 });
7620 });
7621 this.insert("", cx);
7622 });
7623 }
7624
7625 pub fn delete_to_next_subword_end(
7626 &mut self,
7627 _: &DeleteToNextSubwordEnd,
7628 cx: &mut ViewContext<Self>,
7629 ) {
7630 self.transact(cx, |this, cx| {
7631 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7632 s.move_with(|map, selection| {
7633 if selection.is_empty() {
7634 let cursor = movement::next_subword_end(map, selection.head());
7635 selection.set_head(cursor, SelectionGoal::None);
7636 }
7637 });
7638 });
7639 this.insert("", cx);
7640 });
7641 }
7642
7643 pub fn move_to_beginning_of_line(
7644 &mut self,
7645 action: &MoveToBeginningOfLine,
7646 cx: &mut ViewContext<Self>,
7647 ) {
7648 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7649 s.move_cursors_with(|map, head, _| {
7650 (
7651 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7652 SelectionGoal::None,
7653 )
7654 });
7655 })
7656 }
7657
7658 pub fn select_to_beginning_of_line(
7659 &mut self,
7660 action: &SelectToBeginningOfLine,
7661 cx: &mut ViewContext<Self>,
7662 ) {
7663 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7664 s.move_heads_with(|map, head, _| {
7665 (
7666 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7667 SelectionGoal::None,
7668 )
7669 });
7670 });
7671 }
7672
7673 pub fn delete_to_beginning_of_line(
7674 &mut self,
7675 _: &DeleteToBeginningOfLine,
7676 cx: &mut ViewContext<Self>,
7677 ) {
7678 self.transact(cx, |this, cx| {
7679 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7680 s.move_with(|_, selection| {
7681 selection.reversed = true;
7682 });
7683 });
7684
7685 this.select_to_beginning_of_line(
7686 &SelectToBeginningOfLine {
7687 stop_at_soft_wraps: false,
7688 },
7689 cx,
7690 );
7691 this.backspace(&Backspace, cx);
7692 });
7693 }
7694
7695 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7696 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7697 s.move_cursors_with(|map, head, _| {
7698 (
7699 movement::line_end(map, head, action.stop_at_soft_wraps),
7700 SelectionGoal::None,
7701 )
7702 });
7703 })
7704 }
7705
7706 pub fn select_to_end_of_line(
7707 &mut self,
7708 action: &SelectToEndOfLine,
7709 cx: &mut ViewContext<Self>,
7710 ) {
7711 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7712 s.move_heads_with(|map, head, _| {
7713 (
7714 movement::line_end(map, head, action.stop_at_soft_wraps),
7715 SelectionGoal::None,
7716 )
7717 });
7718 })
7719 }
7720
7721 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7722 self.transact(cx, |this, cx| {
7723 this.select_to_end_of_line(
7724 &SelectToEndOfLine {
7725 stop_at_soft_wraps: false,
7726 },
7727 cx,
7728 );
7729 this.delete(&Delete, cx);
7730 });
7731 }
7732
7733 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7734 self.transact(cx, |this, cx| {
7735 this.select_to_end_of_line(
7736 &SelectToEndOfLine {
7737 stop_at_soft_wraps: false,
7738 },
7739 cx,
7740 );
7741 this.cut(&Cut, cx);
7742 });
7743 }
7744
7745 pub fn move_to_start_of_paragraph(
7746 &mut self,
7747 _: &MoveToStartOfParagraph,
7748 cx: &mut ViewContext<Self>,
7749 ) {
7750 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7751 cx.propagate();
7752 return;
7753 }
7754
7755 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7756 s.move_with(|map, selection| {
7757 selection.collapse_to(
7758 movement::start_of_paragraph(map, selection.head(), 1),
7759 SelectionGoal::None,
7760 )
7761 });
7762 })
7763 }
7764
7765 pub fn move_to_end_of_paragraph(
7766 &mut self,
7767 _: &MoveToEndOfParagraph,
7768 cx: &mut ViewContext<Self>,
7769 ) {
7770 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7771 cx.propagate();
7772 return;
7773 }
7774
7775 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7776 s.move_with(|map, selection| {
7777 selection.collapse_to(
7778 movement::end_of_paragraph(map, selection.head(), 1),
7779 SelectionGoal::None,
7780 )
7781 });
7782 })
7783 }
7784
7785 pub fn select_to_start_of_paragraph(
7786 &mut self,
7787 _: &SelectToStartOfParagraph,
7788 cx: &mut ViewContext<Self>,
7789 ) {
7790 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7791 cx.propagate();
7792 return;
7793 }
7794
7795 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7796 s.move_heads_with(|map, head, _| {
7797 (
7798 movement::start_of_paragraph(map, head, 1),
7799 SelectionGoal::None,
7800 )
7801 });
7802 })
7803 }
7804
7805 pub fn select_to_end_of_paragraph(
7806 &mut self,
7807 _: &SelectToEndOfParagraph,
7808 cx: &mut ViewContext<Self>,
7809 ) {
7810 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7811 cx.propagate();
7812 return;
7813 }
7814
7815 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7816 s.move_heads_with(|map, head, _| {
7817 (
7818 movement::end_of_paragraph(map, head, 1),
7819 SelectionGoal::None,
7820 )
7821 });
7822 })
7823 }
7824
7825 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7826 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7827 cx.propagate();
7828 return;
7829 }
7830
7831 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7832 s.select_ranges(vec![0..0]);
7833 });
7834 }
7835
7836 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7837 let mut selection = self.selections.last::<Point>(cx);
7838 selection.set_head(Point::zero(), SelectionGoal::None);
7839
7840 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7841 s.select(vec![selection]);
7842 });
7843 }
7844
7845 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7846 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7847 cx.propagate();
7848 return;
7849 }
7850
7851 let cursor = self.buffer.read(cx).read(cx).len();
7852 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7853 s.select_ranges(vec![cursor..cursor])
7854 });
7855 }
7856
7857 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7858 self.nav_history = nav_history;
7859 }
7860
7861 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7862 self.nav_history.as_ref()
7863 }
7864
7865 fn push_to_nav_history(
7866 &mut self,
7867 cursor_anchor: Anchor,
7868 new_position: Option<Point>,
7869 cx: &mut ViewContext<Self>,
7870 ) {
7871 if let Some(nav_history) = self.nav_history.as_mut() {
7872 let buffer = self.buffer.read(cx).read(cx);
7873 let cursor_position = cursor_anchor.to_point(&buffer);
7874 let scroll_state = self.scroll_manager.anchor();
7875 let scroll_top_row = scroll_state.top_row(&buffer);
7876 drop(buffer);
7877
7878 if let Some(new_position) = new_position {
7879 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7880 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7881 return;
7882 }
7883 }
7884
7885 nav_history.push(
7886 Some(NavigationData {
7887 cursor_anchor,
7888 cursor_position,
7889 scroll_anchor: scroll_state,
7890 scroll_top_row,
7891 }),
7892 cx,
7893 );
7894 }
7895 }
7896
7897 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7898 let buffer = self.buffer.read(cx).snapshot(cx);
7899 let mut selection = self.selections.first::<usize>(cx);
7900 selection.set_head(buffer.len(), SelectionGoal::None);
7901 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7902 s.select(vec![selection]);
7903 });
7904 }
7905
7906 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7907 let end = self.buffer.read(cx).read(cx).len();
7908 self.change_selections(None, cx, |s| {
7909 s.select_ranges(vec![0..end]);
7910 });
7911 }
7912
7913 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7914 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7915 let mut selections = self.selections.all::<Point>(cx);
7916 let max_point = display_map.buffer_snapshot.max_point();
7917 for selection in &mut selections {
7918 let rows = selection.spanned_rows(true, &display_map);
7919 selection.start = Point::new(rows.start.0, 0);
7920 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7921 selection.reversed = false;
7922 }
7923 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7924 s.select(selections);
7925 });
7926 }
7927
7928 pub fn split_selection_into_lines(
7929 &mut self,
7930 _: &SplitSelectionIntoLines,
7931 cx: &mut ViewContext<Self>,
7932 ) {
7933 let mut to_unfold = Vec::new();
7934 let mut new_selection_ranges = Vec::new();
7935 {
7936 let selections = self.selections.all::<Point>(cx);
7937 let buffer = self.buffer.read(cx).read(cx);
7938 for selection in selections {
7939 for row in selection.start.row..selection.end.row {
7940 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7941 new_selection_ranges.push(cursor..cursor);
7942 }
7943 new_selection_ranges.push(selection.end..selection.end);
7944 to_unfold.push(selection.start..selection.end);
7945 }
7946 }
7947 self.unfold_ranges(to_unfold, true, true, cx);
7948 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7949 s.select_ranges(new_selection_ranges);
7950 });
7951 }
7952
7953 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7954 self.add_selection(true, cx);
7955 }
7956
7957 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7958 self.add_selection(false, cx);
7959 }
7960
7961 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7962 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7963 let mut selections = self.selections.all::<Point>(cx);
7964 let text_layout_details = self.text_layout_details(cx);
7965 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7966 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7967 let range = oldest_selection.display_range(&display_map).sorted();
7968
7969 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7970 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7971 let positions = start_x.min(end_x)..start_x.max(end_x);
7972
7973 selections.clear();
7974 let mut stack = Vec::new();
7975 for row in range.start.row().0..=range.end.row().0 {
7976 if let Some(selection) = self.selections.build_columnar_selection(
7977 &display_map,
7978 DisplayRow(row),
7979 &positions,
7980 oldest_selection.reversed,
7981 &text_layout_details,
7982 ) {
7983 stack.push(selection.id);
7984 selections.push(selection);
7985 }
7986 }
7987
7988 if above {
7989 stack.reverse();
7990 }
7991
7992 AddSelectionsState { above, stack }
7993 });
7994
7995 let last_added_selection = *state.stack.last().unwrap();
7996 let mut new_selections = Vec::new();
7997 if above == state.above {
7998 let end_row = if above {
7999 DisplayRow(0)
8000 } else {
8001 display_map.max_point().row()
8002 };
8003
8004 'outer: for selection in selections {
8005 if selection.id == last_added_selection {
8006 let range = selection.display_range(&display_map).sorted();
8007 debug_assert_eq!(range.start.row(), range.end.row());
8008 let mut row = range.start.row();
8009 let positions =
8010 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8011 px(start)..px(end)
8012 } else {
8013 let start_x =
8014 display_map.x_for_display_point(range.start, &text_layout_details);
8015 let end_x =
8016 display_map.x_for_display_point(range.end, &text_layout_details);
8017 start_x.min(end_x)..start_x.max(end_x)
8018 };
8019
8020 while row != end_row {
8021 if above {
8022 row.0 -= 1;
8023 } else {
8024 row.0 += 1;
8025 }
8026
8027 if let Some(new_selection) = self.selections.build_columnar_selection(
8028 &display_map,
8029 row,
8030 &positions,
8031 selection.reversed,
8032 &text_layout_details,
8033 ) {
8034 state.stack.push(new_selection.id);
8035 if above {
8036 new_selections.push(new_selection);
8037 new_selections.push(selection);
8038 } else {
8039 new_selections.push(selection);
8040 new_selections.push(new_selection);
8041 }
8042
8043 continue 'outer;
8044 }
8045 }
8046 }
8047
8048 new_selections.push(selection);
8049 }
8050 } else {
8051 new_selections = selections;
8052 new_selections.retain(|s| s.id != last_added_selection);
8053 state.stack.pop();
8054 }
8055
8056 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8057 s.select(new_selections);
8058 });
8059 if state.stack.len() > 1 {
8060 self.add_selections_state = Some(state);
8061 }
8062 }
8063
8064 pub fn select_next_match_internal(
8065 &mut self,
8066 display_map: &DisplaySnapshot,
8067 replace_newest: bool,
8068 autoscroll: Option<Autoscroll>,
8069 cx: &mut ViewContext<Self>,
8070 ) -> Result<()> {
8071 fn select_next_match_ranges(
8072 this: &mut Editor,
8073 range: Range<usize>,
8074 replace_newest: bool,
8075 auto_scroll: Option<Autoscroll>,
8076 cx: &mut ViewContext<Editor>,
8077 ) {
8078 this.unfold_ranges([range.clone()], false, true, cx);
8079 this.change_selections(auto_scroll, cx, |s| {
8080 if replace_newest {
8081 s.delete(s.newest_anchor().id);
8082 }
8083 s.insert_range(range.clone());
8084 });
8085 }
8086
8087 let buffer = &display_map.buffer_snapshot;
8088 let mut selections = self.selections.all::<usize>(cx);
8089 if let Some(mut select_next_state) = self.select_next_state.take() {
8090 let query = &select_next_state.query;
8091 if !select_next_state.done {
8092 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8093 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8094 let mut next_selected_range = None;
8095
8096 let bytes_after_last_selection =
8097 buffer.bytes_in_range(last_selection.end..buffer.len());
8098 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8099 let query_matches = query
8100 .stream_find_iter(bytes_after_last_selection)
8101 .map(|result| (last_selection.end, result))
8102 .chain(
8103 query
8104 .stream_find_iter(bytes_before_first_selection)
8105 .map(|result| (0, result)),
8106 );
8107
8108 for (start_offset, query_match) in query_matches {
8109 let query_match = query_match.unwrap(); // can only fail due to I/O
8110 let offset_range =
8111 start_offset + query_match.start()..start_offset + query_match.end();
8112 let display_range = offset_range.start.to_display_point(display_map)
8113 ..offset_range.end.to_display_point(display_map);
8114
8115 if !select_next_state.wordwise
8116 || (!movement::is_inside_word(display_map, display_range.start)
8117 && !movement::is_inside_word(display_map, display_range.end))
8118 {
8119 // TODO: This is n^2, because we might check all the selections
8120 if !selections
8121 .iter()
8122 .any(|selection| selection.range().overlaps(&offset_range))
8123 {
8124 next_selected_range = Some(offset_range);
8125 break;
8126 }
8127 }
8128 }
8129
8130 if let Some(next_selected_range) = next_selected_range {
8131 select_next_match_ranges(
8132 self,
8133 next_selected_range,
8134 replace_newest,
8135 autoscroll,
8136 cx,
8137 );
8138 } else {
8139 select_next_state.done = true;
8140 }
8141 }
8142
8143 self.select_next_state = Some(select_next_state);
8144 } else {
8145 let mut only_carets = true;
8146 let mut same_text_selected = true;
8147 let mut selected_text = None;
8148
8149 let mut selections_iter = selections.iter().peekable();
8150 while let Some(selection) = selections_iter.next() {
8151 if selection.start != selection.end {
8152 only_carets = false;
8153 }
8154
8155 if same_text_selected {
8156 if selected_text.is_none() {
8157 selected_text =
8158 Some(buffer.text_for_range(selection.range()).collect::<String>());
8159 }
8160
8161 if let Some(next_selection) = selections_iter.peek() {
8162 if next_selection.range().len() == selection.range().len() {
8163 let next_selected_text = buffer
8164 .text_for_range(next_selection.range())
8165 .collect::<String>();
8166 if Some(next_selected_text) != selected_text {
8167 same_text_selected = false;
8168 selected_text = None;
8169 }
8170 } else {
8171 same_text_selected = false;
8172 selected_text = None;
8173 }
8174 }
8175 }
8176 }
8177
8178 if only_carets {
8179 for selection in &mut selections {
8180 let word_range = movement::surrounding_word(
8181 display_map,
8182 selection.start.to_display_point(display_map),
8183 );
8184 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8185 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8186 selection.goal = SelectionGoal::None;
8187 selection.reversed = false;
8188 select_next_match_ranges(
8189 self,
8190 selection.start..selection.end,
8191 replace_newest,
8192 autoscroll,
8193 cx,
8194 );
8195 }
8196
8197 if selections.len() == 1 {
8198 let selection = selections
8199 .last()
8200 .expect("ensured that there's only one selection");
8201 let query = buffer
8202 .text_for_range(selection.start..selection.end)
8203 .collect::<String>();
8204 let is_empty = query.is_empty();
8205 let select_state = SelectNextState {
8206 query: AhoCorasick::new(&[query])?,
8207 wordwise: true,
8208 done: is_empty,
8209 };
8210 self.select_next_state = Some(select_state);
8211 } else {
8212 self.select_next_state = None;
8213 }
8214 } else if let Some(selected_text) = selected_text {
8215 self.select_next_state = Some(SelectNextState {
8216 query: AhoCorasick::new(&[selected_text])?,
8217 wordwise: false,
8218 done: false,
8219 });
8220 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8221 }
8222 }
8223 Ok(())
8224 }
8225
8226 pub fn select_all_matches(
8227 &mut self,
8228 _action: &SelectAllMatches,
8229 cx: &mut ViewContext<Self>,
8230 ) -> Result<()> {
8231 self.push_to_selection_history();
8232 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8233
8234 self.select_next_match_internal(&display_map, false, None, cx)?;
8235 let Some(select_next_state) = self.select_next_state.as_mut() else {
8236 return Ok(());
8237 };
8238 if select_next_state.done {
8239 return Ok(());
8240 }
8241
8242 let mut new_selections = self.selections.all::<usize>(cx);
8243
8244 let buffer = &display_map.buffer_snapshot;
8245 let query_matches = select_next_state
8246 .query
8247 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8248
8249 for query_match in query_matches {
8250 let query_match = query_match.unwrap(); // can only fail due to I/O
8251 let offset_range = query_match.start()..query_match.end();
8252 let display_range = offset_range.start.to_display_point(&display_map)
8253 ..offset_range.end.to_display_point(&display_map);
8254
8255 if !select_next_state.wordwise
8256 || (!movement::is_inside_word(&display_map, display_range.start)
8257 && !movement::is_inside_word(&display_map, display_range.end))
8258 {
8259 self.selections.change_with(cx, |selections| {
8260 new_selections.push(Selection {
8261 id: selections.new_selection_id(),
8262 start: offset_range.start,
8263 end: offset_range.end,
8264 reversed: false,
8265 goal: SelectionGoal::None,
8266 });
8267 });
8268 }
8269 }
8270
8271 new_selections.sort_by_key(|selection| selection.start);
8272 let mut ix = 0;
8273 while ix + 1 < new_selections.len() {
8274 let current_selection = &new_selections[ix];
8275 let next_selection = &new_selections[ix + 1];
8276 if current_selection.range().overlaps(&next_selection.range()) {
8277 if current_selection.id < next_selection.id {
8278 new_selections.remove(ix + 1);
8279 } else {
8280 new_selections.remove(ix);
8281 }
8282 } else {
8283 ix += 1;
8284 }
8285 }
8286
8287 select_next_state.done = true;
8288 self.unfold_ranges(
8289 new_selections.iter().map(|selection| selection.range()),
8290 false,
8291 false,
8292 cx,
8293 );
8294 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8295 selections.select(new_selections)
8296 });
8297
8298 Ok(())
8299 }
8300
8301 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8302 self.push_to_selection_history();
8303 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8304 self.select_next_match_internal(
8305 &display_map,
8306 action.replace_newest,
8307 Some(Autoscroll::newest()),
8308 cx,
8309 )?;
8310 Ok(())
8311 }
8312
8313 pub fn select_previous(
8314 &mut self,
8315 action: &SelectPrevious,
8316 cx: &mut ViewContext<Self>,
8317 ) -> Result<()> {
8318 self.push_to_selection_history();
8319 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8320 let buffer = &display_map.buffer_snapshot;
8321 let mut selections = self.selections.all::<usize>(cx);
8322 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8323 let query = &select_prev_state.query;
8324 if !select_prev_state.done {
8325 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8326 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8327 let mut next_selected_range = None;
8328 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8329 let bytes_before_last_selection =
8330 buffer.reversed_bytes_in_range(0..last_selection.start);
8331 let bytes_after_first_selection =
8332 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8333 let query_matches = query
8334 .stream_find_iter(bytes_before_last_selection)
8335 .map(|result| (last_selection.start, result))
8336 .chain(
8337 query
8338 .stream_find_iter(bytes_after_first_selection)
8339 .map(|result| (buffer.len(), result)),
8340 );
8341 for (end_offset, query_match) in query_matches {
8342 let query_match = query_match.unwrap(); // can only fail due to I/O
8343 let offset_range =
8344 end_offset - query_match.end()..end_offset - query_match.start();
8345 let display_range = offset_range.start.to_display_point(&display_map)
8346 ..offset_range.end.to_display_point(&display_map);
8347
8348 if !select_prev_state.wordwise
8349 || (!movement::is_inside_word(&display_map, display_range.start)
8350 && !movement::is_inside_word(&display_map, display_range.end))
8351 {
8352 next_selected_range = Some(offset_range);
8353 break;
8354 }
8355 }
8356
8357 if let Some(next_selected_range) = next_selected_range {
8358 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
8359 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8360 if action.replace_newest {
8361 s.delete(s.newest_anchor().id);
8362 }
8363 s.insert_range(next_selected_range);
8364 });
8365 } else {
8366 select_prev_state.done = true;
8367 }
8368 }
8369
8370 self.select_prev_state = Some(select_prev_state);
8371 } else {
8372 let mut only_carets = true;
8373 let mut same_text_selected = true;
8374 let mut selected_text = None;
8375
8376 let mut selections_iter = selections.iter().peekable();
8377 while let Some(selection) = selections_iter.next() {
8378 if selection.start != selection.end {
8379 only_carets = false;
8380 }
8381
8382 if same_text_selected {
8383 if selected_text.is_none() {
8384 selected_text =
8385 Some(buffer.text_for_range(selection.range()).collect::<String>());
8386 }
8387
8388 if let Some(next_selection) = selections_iter.peek() {
8389 if next_selection.range().len() == selection.range().len() {
8390 let next_selected_text = buffer
8391 .text_for_range(next_selection.range())
8392 .collect::<String>();
8393 if Some(next_selected_text) != selected_text {
8394 same_text_selected = false;
8395 selected_text = None;
8396 }
8397 } else {
8398 same_text_selected = false;
8399 selected_text = None;
8400 }
8401 }
8402 }
8403 }
8404
8405 if only_carets {
8406 for selection in &mut selections {
8407 let word_range = movement::surrounding_word(
8408 &display_map,
8409 selection.start.to_display_point(&display_map),
8410 );
8411 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8412 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8413 selection.goal = SelectionGoal::None;
8414 selection.reversed = false;
8415 }
8416 if selections.len() == 1 {
8417 let selection = selections
8418 .last()
8419 .expect("ensured that there's only one selection");
8420 let query = buffer
8421 .text_for_range(selection.start..selection.end)
8422 .collect::<String>();
8423 let is_empty = query.is_empty();
8424 let select_state = SelectNextState {
8425 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8426 wordwise: true,
8427 done: is_empty,
8428 };
8429 self.select_prev_state = Some(select_state);
8430 } else {
8431 self.select_prev_state = None;
8432 }
8433
8434 self.unfold_ranges(
8435 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8436 false,
8437 true,
8438 cx,
8439 );
8440 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8441 s.select(selections);
8442 });
8443 } else if let Some(selected_text) = selected_text {
8444 self.select_prev_state = Some(SelectNextState {
8445 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8446 wordwise: false,
8447 done: false,
8448 });
8449 self.select_previous(action, cx)?;
8450 }
8451 }
8452 Ok(())
8453 }
8454
8455 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8456 let text_layout_details = &self.text_layout_details(cx);
8457 self.transact(cx, |this, cx| {
8458 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8459 let mut edits = Vec::new();
8460 let mut selection_edit_ranges = Vec::new();
8461 let mut last_toggled_row = None;
8462 let snapshot = this.buffer.read(cx).read(cx);
8463 let empty_str: Arc<str> = Arc::default();
8464 let mut suffixes_inserted = Vec::new();
8465
8466 fn comment_prefix_range(
8467 snapshot: &MultiBufferSnapshot,
8468 row: MultiBufferRow,
8469 comment_prefix: &str,
8470 comment_prefix_whitespace: &str,
8471 ) -> Range<Point> {
8472 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
8473
8474 let mut line_bytes = snapshot
8475 .bytes_in_range(start..snapshot.max_point())
8476 .flatten()
8477 .copied();
8478
8479 // If this line currently begins with the line comment prefix, then record
8480 // the range containing the prefix.
8481 if line_bytes
8482 .by_ref()
8483 .take(comment_prefix.len())
8484 .eq(comment_prefix.bytes())
8485 {
8486 // Include any whitespace that matches the comment prefix.
8487 let matching_whitespace_len = line_bytes
8488 .zip(comment_prefix_whitespace.bytes())
8489 .take_while(|(a, b)| a == b)
8490 .count() as u32;
8491 let end = Point::new(
8492 start.row,
8493 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8494 );
8495 start..end
8496 } else {
8497 start..start
8498 }
8499 }
8500
8501 fn comment_suffix_range(
8502 snapshot: &MultiBufferSnapshot,
8503 row: MultiBufferRow,
8504 comment_suffix: &str,
8505 comment_suffix_has_leading_space: bool,
8506 ) -> Range<Point> {
8507 let end = Point::new(row.0, snapshot.line_len(row));
8508 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8509
8510 let mut line_end_bytes = snapshot
8511 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8512 .flatten()
8513 .copied();
8514
8515 let leading_space_len = if suffix_start_column > 0
8516 && line_end_bytes.next() == Some(b' ')
8517 && comment_suffix_has_leading_space
8518 {
8519 1
8520 } else {
8521 0
8522 };
8523
8524 // If this line currently begins with the line comment prefix, then record
8525 // the range containing the prefix.
8526 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8527 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8528 start..end
8529 } else {
8530 end..end
8531 }
8532 }
8533
8534 // TODO: Handle selections that cross excerpts
8535 for selection in &mut selections {
8536 let start_column = snapshot
8537 .indent_size_for_line(MultiBufferRow(selection.start.row))
8538 .len;
8539 let language = if let Some(language) =
8540 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8541 {
8542 language
8543 } else {
8544 continue;
8545 };
8546
8547 selection_edit_ranges.clear();
8548
8549 // If multiple selections contain a given row, avoid processing that
8550 // row more than once.
8551 let mut start_row = MultiBufferRow(selection.start.row);
8552 if last_toggled_row == Some(start_row) {
8553 start_row = start_row.next_row();
8554 }
8555 let end_row =
8556 if selection.end.row > selection.start.row && selection.end.column == 0 {
8557 MultiBufferRow(selection.end.row - 1)
8558 } else {
8559 MultiBufferRow(selection.end.row)
8560 };
8561 last_toggled_row = Some(end_row);
8562
8563 if start_row > end_row {
8564 continue;
8565 }
8566
8567 // If the language has line comments, toggle those.
8568 let full_comment_prefixes = language.line_comment_prefixes();
8569 if !full_comment_prefixes.is_empty() {
8570 let first_prefix = full_comment_prefixes
8571 .first()
8572 .expect("prefixes is non-empty");
8573 let prefix_trimmed_lengths = full_comment_prefixes
8574 .iter()
8575 .map(|p| p.trim_end_matches(' ').len())
8576 .collect::<SmallVec<[usize; 4]>>();
8577
8578 let mut all_selection_lines_are_comments = true;
8579
8580 for row in start_row.0..=end_row.0 {
8581 let row = MultiBufferRow(row);
8582 if start_row < end_row && snapshot.is_line_blank(row) {
8583 continue;
8584 }
8585
8586 let prefix_range = full_comment_prefixes
8587 .iter()
8588 .zip(prefix_trimmed_lengths.iter().copied())
8589 .map(|(prefix, trimmed_prefix_len)| {
8590 comment_prefix_range(
8591 snapshot.deref(),
8592 row,
8593 &prefix[..trimmed_prefix_len],
8594 &prefix[trimmed_prefix_len..],
8595 )
8596 })
8597 .max_by_key(|range| range.end.column - range.start.column)
8598 .expect("prefixes is non-empty");
8599
8600 if prefix_range.is_empty() {
8601 all_selection_lines_are_comments = false;
8602 }
8603
8604 selection_edit_ranges.push(prefix_range);
8605 }
8606
8607 if all_selection_lines_are_comments {
8608 edits.extend(
8609 selection_edit_ranges
8610 .iter()
8611 .cloned()
8612 .map(|range| (range, empty_str.clone())),
8613 );
8614 } else {
8615 let min_column = selection_edit_ranges
8616 .iter()
8617 .map(|range| range.start.column)
8618 .min()
8619 .unwrap_or(0);
8620 edits.extend(selection_edit_ranges.iter().map(|range| {
8621 let position = Point::new(range.start.row, min_column);
8622 (position..position, first_prefix.clone())
8623 }));
8624 }
8625 } else if let Some((full_comment_prefix, comment_suffix)) =
8626 language.block_comment_delimiters()
8627 {
8628 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8629 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8630 let prefix_range = comment_prefix_range(
8631 snapshot.deref(),
8632 start_row,
8633 comment_prefix,
8634 comment_prefix_whitespace,
8635 );
8636 let suffix_range = comment_suffix_range(
8637 snapshot.deref(),
8638 end_row,
8639 comment_suffix.trim_start_matches(' '),
8640 comment_suffix.starts_with(' '),
8641 );
8642
8643 if prefix_range.is_empty() || suffix_range.is_empty() {
8644 edits.push((
8645 prefix_range.start..prefix_range.start,
8646 full_comment_prefix.clone(),
8647 ));
8648 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8649 suffixes_inserted.push((end_row, comment_suffix.len()));
8650 } else {
8651 edits.push((prefix_range, empty_str.clone()));
8652 edits.push((suffix_range, empty_str.clone()));
8653 }
8654 } else {
8655 continue;
8656 }
8657 }
8658
8659 drop(snapshot);
8660 this.buffer.update(cx, |buffer, cx| {
8661 buffer.edit(edits, None, cx);
8662 });
8663
8664 // Adjust selections so that they end before any comment suffixes that
8665 // were inserted.
8666 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8667 let mut selections = this.selections.all::<Point>(cx);
8668 let snapshot = this.buffer.read(cx).read(cx);
8669 for selection in &mut selections {
8670 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8671 match row.cmp(&MultiBufferRow(selection.end.row)) {
8672 Ordering::Less => {
8673 suffixes_inserted.next();
8674 continue;
8675 }
8676 Ordering::Greater => break,
8677 Ordering::Equal => {
8678 if selection.end.column == snapshot.line_len(row) {
8679 if selection.is_empty() {
8680 selection.start.column -= suffix_len as u32;
8681 }
8682 selection.end.column -= suffix_len as u32;
8683 }
8684 break;
8685 }
8686 }
8687 }
8688 }
8689
8690 drop(snapshot);
8691 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8692
8693 let selections = this.selections.all::<Point>(cx);
8694 let selections_on_single_row = selections.windows(2).all(|selections| {
8695 selections[0].start.row == selections[1].start.row
8696 && selections[0].end.row == selections[1].end.row
8697 && selections[0].start.row == selections[0].end.row
8698 });
8699 let selections_selecting = selections
8700 .iter()
8701 .any(|selection| selection.start != selection.end);
8702 let advance_downwards = action.advance_downwards
8703 && selections_on_single_row
8704 && !selections_selecting
8705 && !matches!(this.mode, EditorMode::SingleLine { .. });
8706
8707 if advance_downwards {
8708 let snapshot = this.buffer.read(cx).snapshot(cx);
8709
8710 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8711 s.move_cursors_with(|display_snapshot, display_point, _| {
8712 let mut point = display_point.to_point(display_snapshot);
8713 point.row += 1;
8714 point = snapshot.clip_point(point, Bias::Left);
8715 let display_point = point.to_display_point(display_snapshot);
8716 let goal = SelectionGoal::HorizontalPosition(
8717 display_snapshot
8718 .x_for_display_point(display_point, text_layout_details)
8719 .into(),
8720 );
8721 (display_point, goal)
8722 })
8723 });
8724 }
8725 });
8726 }
8727
8728 pub fn select_enclosing_symbol(
8729 &mut self,
8730 _: &SelectEnclosingSymbol,
8731 cx: &mut ViewContext<Self>,
8732 ) {
8733 let buffer = self.buffer.read(cx).snapshot(cx);
8734 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8735
8736 fn update_selection(
8737 selection: &Selection<usize>,
8738 buffer_snap: &MultiBufferSnapshot,
8739 ) -> Option<Selection<usize>> {
8740 let cursor = selection.head();
8741 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8742 for symbol in symbols.iter().rev() {
8743 let start = symbol.range.start.to_offset(buffer_snap);
8744 let end = symbol.range.end.to_offset(buffer_snap);
8745 let new_range = start..end;
8746 if start < selection.start || end > selection.end {
8747 return Some(Selection {
8748 id: selection.id,
8749 start: new_range.start,
8750 end: new_range.end,
8751 goal: SelectionGoal::None,
8752 reversed: selection.reversed,
8753 });
8754 }
8755 }
8756 None
8757 }
8758
8759 let mut selected_larger_symbol = false;
8760 let new_selections = old_selections
8761 .iter()
8762 .map(|selection| match update_selection(selection, &buffer) {
8763 Some(new_selection) => {
8764 if new_selection.range() != selection.range() {
8765 selected_larger_symbol = true;
8766 }
8767 new_selection
8768 }
8769 None => selection.clone(),
8770 })
8771 .collect::<Vec<_>>();
8772
8773 if selected_larger_symbol {
8774 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8775 s.select(new_selections);
8776 });
8777 }
8778 }
8779
8780 pub fn select_larger_syntax_node(
8781 &mut self,
8782 _: &SelectLargerSyntaxNode,
8783 cx: &mut ViewContext<Self>,
8784 ) {
8785 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8786 let buffer = self.buffer.read(cx).snapshot(cx);
8787 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8788
8789 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8790 let mut selected_larger_node = false;
8791 let new_selections = old_selections
8792 .iter()
8793 .map(|selection| {
8794 let old_range = selection.start..selection.end;
8795 let mut new_range = old_range.clone();
8796 while let Some(containing_range) =
8797 buffer.range_for_syntax_ancestor(new_range.clone())
8798 {
8799 new_range = containing_range;
8800 if !display_map.intersects_fold(new_range.start)
8801 && !display_map.intersects_fold(new_range.end)
8802 {
8803 break;
8804 }
8805 }
8806
8807 selected_larger_node |= new_range != old_range;
8808 Selection {
8809 id: selection.id,
8810 start: new_range.start,
8811 end: new_range.end,
8812 goal: SelectionGoal::None,
8813 reversed: selection.reversed,
8814 }
8815 })
8816 .collect::<Vec<_>>();
8817
8818 if selected_larger_node {
8819 stack.push(old_selections);
8820 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8821 s.select(new_selections);
8822 });
8823 }
8824 self.select_larger_syntax_node_stack = stack;
8825 }
8826
8827 pub fn select_smaller_syntax_node(
8828 &mut self,
8829 _: &SelectSmallerSyntaxNode,
8830 cx: &mut ViewContext<Self>,
8831 ) {
8832 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8833 if let Some(selections) = stack.pop() {
8834 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8835 s.select(selections.to_vec());
8836 });
8837 }
8838 self.select_larger_syntax_node_stack = stack;
8839 }
8840
8841 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8842 if !EditorSettings::get_global(cx).gutter.runnables {
8843 self.clear_tasks();
8844 return Task::ready(());
8845 }
8846 let project = self.project.clone();
8847 cx.spawn(|this, mut cx| async move {
8848 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8849 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8850 }) else {
8851 return;
8852 };
8853
8854 let Some(project) = project else {
8855 return;
8856 };
8857
8858 let hide_runnables = project
8859 .update(&mut cx, |project, cx| {
8860 // Do not display any test indicators in non-dev server remote projects.
8861 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8862 })
8863 .unwrap_or(true);
8864 if hide_runnables {
8865 return;
8866 }
8867 let new_rows =
8868 cx.background_executor()
8869 .spawn({
8870 let snapshot = display_snapshot.clone();
8871 async move {
8872 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8873 }
8874 })
8875 .await;
8876 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8877
8878 this.update(&mut cx, |this, _| {
8879 this.clear_tasks();
8880 for (key, value) in rows {
8881 this.insert_tasks(key, value);
8882 }
8883 })
8884 .ok();
8885 })
8886 }
8887 fn fetch_runnable_ranges(
8888 snapshot: &DisplaySnapshot,
8889 range: Range<Anchor>,
8890 ) -> Vec<language::RunnableRange> {
8891 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8892 }
8893
8894 fn runnable_rows(
8895 project: Model<Project>,
8896 snapshot: DisplaySnapshot,
8897 runnable_ranges: Vec<RunnableRange>,
8898 mut cx: AsyncWindowContext,
8899 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8900 runnable_ranges
8901 .into_iter()
8902 .filter_map(|mut runnable| {
8903 let tasks = cx
8904 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8905 .ok()?;
8906 if tasks.is_empty() {
8907 return None;
8908 }
8909
8910 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8911
8912 let row = snapshot
8913 .buffer_snapshot
8914 .buffer_line_for_row(MultiBufferRow(point.row))?
8915 .1
8916 .start
8917 .row;
8918
8919 let context_range =
8920 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8921 Some((
8922 (runnable.buffer_id, row),
8923 RunnableTasks {
8924 templates: tasks,
8925 offset: MultiBufferOffset(runnable.run_range.start),
8926 context_range,
8927 column: point.column,
8928 extra_variables: runnable.extra_captures,
8929 },
8930 ))
8931 })
8932 .collect()
8933 }
8934
8935 fn templates_with_tags(
8936 project: &Model<Project>,
8937 runnable: &mut Runnable,
8938 cx: &WindowContext<'_>,
8939 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8940 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8941 let (worktree_id, file) = project
8942 .buffer_for_id(runnable.buffer, cx)
8943 .and_then(|buffer| buffer.read(cx).file())
8944 .map(|file| (file.worktree_id(cx), file.clone()))
8945 .unzip();
8946
8947 (project.task_inventory().clone(), worktree_id, file)
8948 });
8949
8950 let inventory = inventory.read(cx);
8951 let tags = mem::take(&mut runnable.tags);
8952 let mut tags: Vec<_> = tags
8953 .into_iter()
8954 .flat_map(|tag| {
8955 let tag = tag.0.clone();
8956 inventory
8957 .list_tasks(
8958 file.clone(),
8959 Some(runnable.language.clone()),
8960 worktree_id,
8961 cx,
8962 )
8963 .into_iter()
8964 .filter(move |(_, template)| {
8965 template.tags.iter().any(|source_tag| source_tag == &tag)
8966 })
8967 })
8968 .sorted_by_key(|(kind, _)| kind.to_owned())
8969 .collect();
8970 if let Some((leading_tag_source, _)) = tags.first() {
8971 // Strongest source wins; if we have worktree tag binding, prefer that to
8972 // global and language bindings;
8973 // if we have a global binding, prefer that to language binding.
8974 let first_mismatch = tags
8975 .iter()
8976 .position(|(tag_source, _)| tag_source != leading_tag_source);
8977 if let Some(index) = first_mismatch {
8978 tags.truncate(index);
8979 }
8980 }
8981
8982 tags
8983 }
8984
8985 pub fn move_to_enclosing_bracket(
8986 &mut self,
8987 _: &MoveToEnclosingBracket,
8988 cx: &mut ViewContext<Self>,
8989 ) {
8990 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8991 s.move_offsets_with(|snapshot, selection| {
8992 let Some(enclosing_bracket_ranges) =
8993 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8994 else {
8995 return;
8996 };
8997
8998 let mut best_length = usize::MAX;
8999 let mut best_inside = false;
9000 let mut best_in_bracket_range = false;
9001 let mut best_destination = None;
9002 for (open, close) in enclosing_bracket_ranges {
9003 let close = close.to_inclusive();
9004 let length = close.end() - open.start;
9005 let inside = selection.start >= open.end && selection.end <= *close.start();
9006 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9007 || close.contains(&selection.head());
9008
9009 // If best is next to a bracket and current isn't, skip
9010 if !in_bracket_range && best_in_bracket_range {
9011 continue;
9012 }
9013
9014 // Prefer smaller lengths unless best is inside and current isn't
9015 if length > best_length && (best_inside || !inside) {
9016 continue;
9017 }
9018
9019 best_length = length;
9020 best_inside = inside;
9021 best_in_bracket_range = in_bracket_range;
9022 best_destination = Some(
9023 if close.contains(&selection.start) && close.contains(&selection.end) {
9024 if inside {
9025 open.end
9026 } else {
9027 open.start
9028 }
9029 } else if inside {
9030 *close.start()
9031 } else {
9032 *close.end()
9033 },
9034 );
9035 }
9036
9037 if let Some(destination) = best_destination {
9038 selection.collapse_to(destination, SelectionGoal::None);
9039 }
9040 })
9041 });
9042 }
9043
9044 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9045 self.end_selection(cx);
9046 self.selection_history.mode = SelectionHistoryMode::Undoing;
9047 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9048 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9049 self.select_next_state = entry.select_next_state;
9050 self.select_prev_state = entry.select_prev_state;
9051 self.add_selections_state = entry.add_selections_state;
9052 self.request_autoscroll(Autoscroll::newest(), cx);
9053 }
9054 self.selection_history.mode = SelectionHistoryMode::Normal;
9055 }
9056
9057 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9058 self.end_selection(cx);
9059 self.selection_history.mode = SelectionHistoryMode::Redoing;
9060 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9061 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9062 self.select_next_state = entry.select_next_state;
9063 self.select_prev_state = entry.select_prev_state;
9064 self.add_selections_state = entry.add_selections_state;
9065 self.request_autoscroll(Autoscroll::newest(), cx);
9066 }
9067 self.selection_history.mode = SelectionHistoryMode::Normal;
9068 }
9069
9070 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9071 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9072 }
9073
9074 pub fn expand_excerpts_down(
9075 &mut self,
9076 action: &ExpandExcerptsDown,
9077 cx: &mut ViewContext<Self>,
9078 ) {
9079 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9080 }
9081
9082 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9083 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9084 }
9085
9086 pub fn expand_excerpts_for_direction(
9087 &mut self,
9088 lines: u32,
9089 direction: ExpandExcerptDirection,
9090 cx: &mut ViewContext<Self>,
9091 ) {
9092 let selections = self.selections.disjoint_anchors();
9093
9094 let lines = if lines == 0 {
9095 EditorSettings::get_global(cx).expand_excerpt_lines
9096 } else {
9097 lines
9098 };
9099
9100 self.buffer.update(cx, |buffer, cx| {
9101 buffer.expand_excerpts(
9102 selections
9103 .iter()
9104 .map(|selection| selection.head().excerpt_id)
9105 .dedup(),
9106 lines,
9107 direction,
9108 cx,
9109 )
9110 })
9111 }
9112
9113 pub fn expand_excerpt(
9114 &mut self,
9115 excerpt: ExcerptId,
9116 direction: ExpandExcerptDirection,
9117 cx: &mut ViewContext<Self>,
9118 ) {
9119 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9120 self.buffer.update(cx, |buffer, cx| {
9121 buffer.expand_excerpts([excerpt], lines, direction, cx)
9122 })
9123 }
9124
9125 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9126 self.go_to_diagnostic_impl(Direction::Next, cx)
9127 }
9128
9129 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9130 self.go_to_diagnostic_impl(Direction::Prev, cx)
9131 }
9132
9133 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9134 let buffer = self.buffer.read(cx).snapshot(cx);
9135 let selection = self.selections.newest::<usize>(cx);
9136
9137 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9138 if direction == Direction::Next {
9139 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9140 let (group_id, jump_to) = popover.activation_info();
9141 if self.activate_diagnostics(group_id, cx) {
9142 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9143 let mut new_selection = s.newest_anchor().clone();
9144 new_selection.collapse_to(jump_to, SelectionGoal::None);
9145 s.select_anchors(vec![new_selection.clone()]);
9146 });
9147 }
9148 return;
9149 }
9150 }
9151
9152 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9153 active_diagnostics
9154 .primary_range
9155 .to_offset(&buffer)
9156 .to_inclusive()
9157 });
9158 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9159 if active_primary_range.contains(&selection.head()) {
9160 *active_primary_range.start()
9161 } else {
9162 selection.head()
9163 }
9164 } else {
9165 selection.head()
9166 };
9167 let snapshot = self.snapshot(cx);
9168 loop {
9169 let diagnostics = if direction == Direction::Prev {
9170 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9171 } else {
9172 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9173 }
9174 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9175 let group = diagnostics
9176 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9177 // be sorted in a stable way
9178 // skip until we are at current active diagnostic, if it exists
9179 .skip_while(|entry| {
9180 (match direction {
9181 Direction::Prev => entry.range.start >= search_start,
9182 Direction::Next => entry.range.start <= search_start,
9183 }) && self
9184 .active_diagnostics
9185 .as_ref()
9186 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9187 })
9188 .find_map(|entry| {
9189 if entry.diagnostic.is_primary
9190 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9191 && !entry.range.is_empty()
9192 // if we match with the active diagnostic, skip it
9193 && Some(entry.diagnostic.group_id)
9194 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9195 {
9196 Some((entry.range, entry.diagnostic.group_id))
9197 } else {
9198 None
9199 }
9200 });
9201
9202 if let Some((primary_range, group_id)) = group {
9203 if self.activate_diagnostics(group_id, cx) {
9204 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9205 s.select(vec![Selection {
9206 id: selection.id,
9207 start: primary_range.start,
9208 end: primary_range.start,
9209 reversed: false,
9210 goal: SelectionGoal::None,
9211 }]);
9212 });
9213 }
9214 break;
9215 } else {
9216 // Cycle around to the start of the buffer, potentially moving back to the start of
9217 // the currently active diagnostic.
9218 active_primary_range.take();
9219 if direction == Direction::Prev {
9220 if search_start == buffer.len() {
9221 break;
9222 } else {
9223 search_start = buffer.len();
9224 }
9225 } else if search_start == 0 {
9226 break;
9227 } else {
9228 search_start = 0;
9229 }
9230 }
9231 }
9232 }
9233
9234 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9235 let snapshot = self
9236 .display_map
9237 .update(cx, |display_map, cx| display_map.snapshot(cx));
9238 let selection = self.selections.newest::<Point>(cx);
9239
9240 if !self.seek_in_direction(
9241 &snapshot,
9242 selection.head(),
9243 false,
9244 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9245 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
9246 ),
9247 cx,
9248 ) {
9249 let wrapped_point = Point::zero();
9250 self.seek_in_direction(
9251 &snapshot,
9252 wrapped_point,
9253 true,
9254 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9255 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9256 ),
9257 cx,
9258 );
9259 }
9260 }
9261
9262 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9263 let snapshot = self
9264 .display_map
9265 .update(cx, |display_map, cx| display_map.snapshot(cx));
9266 let selection = self.selections.newest::<Point>(cx);
9267
9268 if !self.seek_in_direction(
9269 &snapshot,
9270 selection.head(),
9271 false,
9272 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
9273 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
9274 ),
9275 cx,
9276 ) {
9277 let wrapped_point = snapshot.buffer_snapshot.max_point();
9278 self.seek_in_direction(
9279 &snapshot,
9280 wrapped_point,
9281 true,
9282 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
9283 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
9284 ),
9285 cx,
9286 );
9287 }
9288 }
9289
9290 fn seek_in_direction(
9291 &mut self,
9292 snapshot: &DisplaySnapshot,
9293 initial_point: Point,
9294 is_wrapped: bool,
9295 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
9296 cx: &mut ViewContext<Editor>,
9297 ) -> bool {
9298 let display_point = initial_point.to_display_point(snapshot);
9299 let mut hunks = hunks
9300 .map(|hunk| diff_hunk_to_display(&hunk, snapshot))
9301 .filter(|hunk| is_wrapped || !hunk.contains_display_row(display_point.row()))
9302 .dedup();
9303
9304 if let Some(hunk) = hunks.next() {
9305 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9306 let row = hunk.start_display_row();
9307 let point = DisplayPoint::new(row, 0);
9308 s.select_display_ranges([point..point]);
9309 });
9310
9311 true
9312 } else {
9313 false
9314 }
9315 }
9316
9317 pub fn go_to_definition(
9318 &mut self,
9319 _: &GoToDefinition,
9320 cx: &mut ViewContext<Self>,
9321 ) -> Task<Result<Navigated>> {
9322 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9323 cx.spawn(|editor, mut cx| async move {
9324 if definition.await? == Navigated::Yes {
9325 return Ok(Navigated::Yes);
9326 }
9327 match editor.update(&mut cx, |editor, cx| {
9328 editor.find_all_references(&FindAllReferences, cx)
9329 })? {
9330 Some(references) => references.await,
9331 None => Ok(Navigated::No),
9332 }
9333 })
9334 }
9335
9336 pub fn go_to_declaration(
9337 &mut self,
9338 _: &GoToDeclaration,
9339 cx: &mut ViewContext<Self>,
9340 ) -> Task<Result<Navigated>> {
9341 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9342 }
9343
9344 pub fn go_to_declaration_split(
9345 &mut self,
9346 _: &GoToDeclaration,
9347 cx: &mut ViewContext<Self>,
9348 ) -> Task<Result<Navigated>> {
9349 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9350 }
9351
9352 pub fn go_to_implementation(
9353 &mut self,
9354 _: &GoToImplementation,
9355 cx: &mut ViewContext<Self>,
9356 ) -> Task<Result<Navigated>> {
9357 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9358 }
9359
9360 pub fn go_to_implementation_split(
9361 &mut self,
9362 _: &GoToImplementationSplit,
9363 cx: &mut ViewContext<Self>,
9364 ) -> Task<Result<Navigated>> {
9365 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9366 }
9367
9368 pub fn go_to_type_definition(
9369 &mut self,
9370 _: &GoToTypeDefinition,
9371 cx: &mut ViewContext<Self>,
9372 ) -> Task<Result<Navigated>> {
9373 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9374 }
9375
9376 pub fn go_to_definition_split(
9377 &mut self,
9378 _: &GoToDefinitionSplit,
9379 cx: &mut ViewContext<Self>,
9380 ) -> Task<Result<Navigated>> {
9381 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9382 }
9383
9384 pub fn go_to_type_definition_split(
9385 &mut self,
9386 _: &GoToTypeDefinitionSplit,
9387 cx: &mut ViewContext<Self>,
9388 ) -> Task<Result<Navigated>> {
9389 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9390 }
9391
9392 fn go_to_definition_of_kind(
9393 &mut self,
9394 kind: GotoDefinitionKind,
9395 split: bool,
9396 cx: &mut ViewContext<Self>,
9397 ) -> Task<Result<Navigated>> {
9398 let Some(workspace) = self.workspace() else {
9399 return Task::ready(Ok(Navigated::No));
9400 };
9401 let buffer = self.buffer.read(cx);
9402 let head = self.selections.newest::<usize>(cx).head();
9403 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9404 text_anchor
9405 } else {
9406 return Task::ready(Ok(Navigated::No));
9407 };
9408
9409 let project = workspace.read(cx).project().clone();
9410 let definitions = project.update(cx, |project, cx| match kind {
9411 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
9412 GotoDefinitionKind::Declaration => project.declaration(&buffer, head, cx),
9413 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
9414 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
9415 });
9416
9417 cx.spawn(|editor, mut cx| async move {
9418 let definitions = definitions.await?;
9419 let navigated = editor
9420 .update(&mut cx, |editor, cx| {
9421 editor.navigate_to_hover_links(
9422 Some(kind),
9423 definitions
9424 .into_iter()
9425 .filter(|location| {
9426 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9427 })
9428 .map(HoverLink::Text)
9429 .collect::<Vec<_>>(),
9430 split,
9431 cx,
9432 )
9433 })?
9434 .await?;
9435 anyhow::Ok(navigated)
9436 })
9437 }
9438
9439 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9440 let position = self.selections.newest_anchor().head();
9441 let Some((buffer, buffer_position)) =
9442 self.buffer.read(cx).text_anchor_for_position(position, cx)
9443 else {
9444 return;
9445 };
9446
9447 cx.spawn(|editor, mut cx| async move {
9448 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9449 editor.update(&mut cx, |_, cx| {
9450 cx.open_url(&url);
9451 })
9452 } else {
9453 Ok(())
9454 }
9455 })
9456 .detach();
9457 }
9458
9459 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9460 let Some(workspace) = self.workspace() else {
9461 return;
9462 };
9463
9464 let position = self.selections.newest_anchor().head();
9465
9466 let Some((buffer, buffer_position)) =
9467 self.buffer.read(cx).text_anchor_for_position(position, cx)
9468 else {
9469 return;
9470 };
9471
9472 let Some(project) = self.project.clone() else {
9473 return;
9474 };
9475
9476 cx.spawn(|_, mut cx| async move {
9477 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9478
9479 if let Some((_, path)) = result {
9480 workspace
9481 .update(&mut cx, |workspace, cx| {
9482 workspace.open_resolved_path(path, cx)
9483 })?
9484 .await?;
9485 }
9486 anyhow::Ok(())
9487 })
9488 .detach();
9489 }
9490
9491 pub(crate) fn navigate_to_hover_links(
9492 &mut self,
9493 kind: Option<GotoDefinitionKind>,
9494 mut definitions: Vec<HoverLink>,
9495 split: bool,
9496 cx: &mut ViewContext<Editor>,
9497 ) -> Task<Result<Navigated>> {
9498 // If there is one definition, just open it directly
9499 if definitions.len() == 1 {
9500 let definition = definitions.pop().unwrap();
9501
9502 enum TargetTaskResult {
9503 Location(Option<Location>),
9504 AlreadyNavigated,
9505 }
9506
9507 let target_task = match definition {
9508 HoverLink::Text(link) => {
9509 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9510 }
9511 HoverLink::InlayHint(lsp_location, server_id) => {
9512 let computation = self.compute_target_location(lsp_location, server_id, cx);
9513 cx.background_executor().spawn(async move {
9514 let location = computation.await?;
9515 Ok(TargetTaskResult::Location(location))
9516 })
9517 }
9518 HoverLink::Url(url) => {
9519 cx.open_url(&url);
9520 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9521 }
9522 HoverLink::File(path) => {
9523 if let Some(workspace) = self.workspace() {
9524 cx.spawn(|_, mut cx| async move {
9525 workspace
9526 .update(&mut cx, |workspace, cx| {
9527 workspace.open_resolved_path(path, cx)
9528 })?
9529 .await
9530 .map(|_| TargetTaskResult::AlreadyNavigated)
9531 })
9532 } else {
9533 Task::ready(Ok(TargetTaskResult::Location(None)))
9534 }
9535 }
9536 };
9537 cx.spawn(|editor, mut cx| async move {
9538 let target = match target_task.await.context("target resolution task")? {
9539 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9540 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9541 TargetTaskResult::Location(Some(target)) => target,
9542 };
9543
9544 editor.update(&mut cx, |editor, cx| {
9545 let Some(workspace) = editor.workspace() else {
9546 return Navigated::No;
9547 };
9548 let pane = workspace.read(cx).active_pane().clone();
9549
9550 let range = target.range.to_offset(target.buffer.read(cx));
9551 let range = editor.range_for_match(&range);
9552
9553 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9554 let buffer = target.buffer.read(cx);
9555 let range = check_multiline_range(buffer, range);
9556 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
9557 s.select_ranges([range]);
9558 });
9559 } else {
9560 cx.window_context().defer(move |cx| {
9561 let target_editor: View<Self> =
9562 workspace.update(cx, |workspace, cx| {
9563 let pane = if split {
9564 workspace.adjacent_pane(cx)
9565 } else {
9566 workspace.active_pane().clone()
9567 };
9568
9569 workspace.open_project_item(
9570 pane,
9571 target.buffer.clone(),
9572 true,
9573 true,
9574 cx,
9575 )
9576 });
9577 target_editor.update(cx, |target_editor, cx| {
9578 // When selecting a definition in a different buffer, disable the nav history
9579 // to avoid creating a history entry at the previous cursor location.
9580 pane.update(cx, |pane, _| pane.disable_history());
9581 let buffer = target.buffer.read(cx);
9582 let range = check_multiline_range(buffer, range);
9583 target_editor.change_selections(
9584 Some(Autoscroll::focused()),
9585 cx,
9586 |s| {
9587 s.select_ranges([range]);
9588 },
9589 );
9590 pane.update(cx, |pane, _| pane.enable_history());
9591 });
9592 });
9593 }
9594 Navigated::Yes
9595 })
9596 })
9597 } else if !definitions.is_empty() {
9598 let replica_id = self.replica_id(cx);
9599 cx.spawn(|editor, mut cx| async move {
9600 let (title, location_tasks, workspace) = editor
9601 .update(&mut cx, |editor, cx| {
9602 let tab_kind = match kind {
9603 Some(GotoDefinitionKind::Implementation) => "Implementations",
9604 _ => "Definitions",
9605 };
9606 let title = definitions
9607 .iter()
9608 .find_map(|definition| match definition {
9609 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9610 let buffer = origin.buffer.read(cx);
9611 format!(
9612 "{} for {}",
9613 tab_kind,
9614 buffer
9615 .text_for_range(origin.range.clone())
9616 .collect::<String>()
9617 )
9618 }),
9619 HoverLink::InlayHint(_, _) => None,
9620 HoverLink::Url(_) => None,
9621 HoverLink::File(_) => None,
9622 })
9623 .unwrap_or(tab_kind.to_string());
9624 let location_tasks = definitions
9625 .into_iter()
9626 .map(|definition| match definition {
9627 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9628 HoverLink::InlayHint(lsp_location, server_id) => {
9629 editor.compute_target_location(lsp_location, server_id, cx)
9630 }
9631 HoverLink::Url(_) => Task::ready(Ok(None)),
9632 HoverLink::File(_) => Task::ready(Ok(None)),
9633 })
9634 .collect::<Vec<_>>();
9635 (title, location_tasks, editor.workspace().clone())
9636 })
9637 .context("location tasks preparation")?;
9638
9639 let locations = futures::future::join_all(location_tasks)
9640 .await
9641 .into_iter()
9642 .filter_map(|location| location.transpose())
9643 .collect::<Result<_>>()
9644 .context("location tasks")?;
9645
9646 let Some(workspace) = workspace else {
9647 return Ok(Navigated::No);
9648 };
9649 let opened = workspace
9650 .update(&mut cx, |workspace, cx| {
9651 Self::open_locations_in_multibuffer(
9652 workspace, locations, replica_id, title, split, cx,
9653 )
9654 })
9655 .ok();
9656
9657 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9658 })
9659 } else {
9660 Task::ready(Ok(Navigated::No))
9661 }
9662 }
9663
9664 fn compute_target_location(
9665 &self,
9666 lsp_location: lsp::Location,
9667 server_id: LanguageServerId,
9668 cx: &mut ViewContext<Editor>,
9669 ) -> Task<anyhow::Result<Option<Location>>> {
9670 let Some(project) = self.project.clone() else {
9671 return Task::Ready(Some(Ok(None)));
9672 };
9673
9674 cx.spawn(move |editor, mut cx| async move {
9675 let location_task = editor.update(&mut cx, |editor, cx| {
9676 project.update(cx, |project, cx| {
9677 let language_server_name =
9678 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
9679 project
9680 .language_server_for_buffer(buffer.read(cx), server_id, cx)
9681 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
9682 });
9683 language_server_name.map(|language_server_name| {
9684 project.open_local_buffer_via_lsp(
9685 lsp_location.uri.clone(),
9686 server_id,
9687 language_server_name,
9688 cx,
9689 )
9690 })
9691 })
9692 })?;
9693 let location = match location_task {
9694 Some(task) => Some({
9695 let target_buffer_handle = task.await.context("open local buffer")?;
9696 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9697 let target_start = target_buffer
9698 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9699 let target_end = target_buffer
9700 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9701 target_buffer.anchor_after(target_start)
9702 ..target_buffer.anchor_before(target_end)
9703 })?;
9704 Location {
9705 buffer: target_buffer_handle,
9706 range,
9707 }
9708 }),
9709 None => None,
9710 };
9711 Ok(location)
9712 })
9713 }
9714
9715 pub fn find_all_references(
9716 &mut self,
9717 _: &FindAllReferences,
9718 cx: &mut ViewContext<Self>,
9719 ) -> Option<Task<Result<Navigated>>> {
9720 let multi_buffer = self.buffer.read(cx);
9721 let selection = self.selections.newest::<usize>(cx);
9722 let head = selection.head();
9723
9724 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9725 let head_anchor = multi_buffer_snapshot.anchor_at(
9726 head,
9727 if head < selection.tail() {
9728 Bias::Right
9729 } else {
9730 Bias::Left
9731 },
9732 );
9733
9734 match self
9735 .find_all_references_task_sources
9736 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9737 {
9738 Ok(_) => {
9739 log::info!(
9740 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9741 );
9742 return None;
9743 }
9744 Err(i) => {
9745 self.find_all_references_task_sources.insert(i, head_anchor);
9746 }
9747 }
9748
9749 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9750 let replica_id = self.replica_id(cx);
9751 let workspace = self.workspace()?;
9752 let project = workspace.read(cx).project().clone();
9753 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9754 Some(cx.spawn(|editor, mut cx| async move {
9755 let _cleanup = defer({
9756 let mut cx = cx.clone();
9757 move || {
9758 let _ = editor.update(&mut cx, |editor, _| {
9759 if let Ok(i) =
9760 editor
9761 .find_all_references_task_sources
9762 .binary_search_by(|anchor| {
9763 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9764 })
9765 {
9766 editor.find_all_references_task_sources.remove(i);
9767 }
9768 });
9769 }
9770 });
9771
9772 let locations = references.await?;
9773 if locations.is_empty() {
9774 return anyhow::Ok(Navigated::No);
9775 }
9776
9777 workspace.update(&mut cx, |workspace, cx| {
9778 let title = locations
9779 .first()
9780 .as_ref()
9781 .map(|location| {
9782 let buffer = location.buffer.read(cx);
9783 format!(
9784 "References to `{}`",
9785 buffer
9786 .text_for_range(location.range.clone())
9787 .collect::<String>()
9788 )
9789 })
9790 .unwrap();
9791 Self::open_locations_in_multibuffer(
9792 workspace, locations, replica_id, title, false, cx,
9793 );
9794 Navigated::Yes
9795 })
9796 }))
9797 }
9798
9799 /// Opens a multibuffer with the given project locations in it
9800 pub fn open_locations_in_multibuffer(
9801 workspace: &mut Workspace,
9802 mut locations: Vec<Location>,
9803 replica_id: ReplicaId,
9804 title: String,
9805 split: bool,
9806 cx: &mut ViewContext<Workspace>,
9807 ) {
9808 // If there are multiple definitions, open them in a multibuffer
9809 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9810 let mut locations = locations.into_iter().peekable();
9811 let mut ranges_to_highlight = Vec::new();
9812 let capability = workspace.project().read(cx).capability();
9813
9814 let excerpt_buffer = cx.new_model(|cx| {
9815 let mut multibuffer = MultiBuffer::new(replica_id, capability);
9816 while let Some(location) = locations.next() {
9817 let buffer = location.buffer.read(cx);
9818 let mut ranges_for_buffer = Vec::new();
9819 let range = location.range.to_offset(buffer);
9820 ranges_for_buffer.push(range.clone());
9821
9822 while let Some(next_location) = locations.peek() {
9823 if next_location.buffer == location.buffer {
9824 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9825 locations.next();
9826 } else {
9827 break;
9828 }
9829 }
9830
9831 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9832 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9833 location.buffer.clone(),
9834 ranges_for_buffer,
9835 DEFAULT_MULTIBUFFER_CONTEXT,
9836 cx,
9837 ))
9838 }
9839
9840 multibuffer.with_title(title)
9841 });
9842
9843 let editor = cx.new_view(|cx| {
9844 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9845 });
9846 editor.update(cx, |editor, cx| {
9847 if let Some(first_range) = ranges_to_highlight.first() {
9848 editor.change_selections(None, cx, |selections| {
9849 selections.clear_disjoint();
9850 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9851 });
9852 }
9853 editor.highlight_background::<Self>(
9854 &ranges_to_highlight,
9855 |theme| theme.editor_highlighted_line_background,
9856 cx,
9857 );
9858 });
9859
9860 let item = Box::new(editor);
9861 let item_id = item.item_id();
9862
9863 if split {
9864 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9865 } else {
9866 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9867 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9868 pane.close_current_preview_item(cx)
9869 } else {
9870 None
9871 }
9872 });
9873 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9874 }
9875 workspace.active_pane().update(cx, |pane, cx| {
9876 pane.set_preview_item_id(Some(item_id), cx);
9877 });
9878 }
9879
9880 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9881 use language::ToOffset as _;
9882
9883 let project = self.project.clone()?;
9884 let selection = self.selections.newest_anchor().clone();
9885 let (cursor_buffer, cursor_buffer_position) = self
9886 .buffer
9887 .read(cx)
9888 .text_anchor_for_position(selection.head(), cx)?;
9889 let (tail_buffer, cursor_buffer_position_end) = self
9890 .buffer
9891 .read(cx)
9892 .text_anchor_for_position(selection.tail(), cx)?;
9893 if tail_buffer != cursor_buffer {
9894 return None;
9895 }
9896
9897 let snapshot = cursor_buffer.read(cx).snapshot();
9898 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9899 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9900 let prepare_rename = project.update(cx, |project, cx| {
9901 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
9902 });
9903 drop(snapshot);
9904
9905 Some(cx.spawn(|this, mut cx| async move {
9906 let rename_range = if let Some(range) = prepare_rename.await? {
9907 Some(range)
9908 } else {
9909 this.update(&mut cx, |this, cx| {
9910 let buffer = this.buffer.read(cx).snapshot(cx);
9911 let mut buffer_highlights = this
9912 .document_highlights_for_position(selection.head(), &buffer)
9913 .filter(|highlight| {
9914 highlight.start.excerpt_id == selection.head().excerpt_id
9915 && highlight.end.excerpt_id == selection.head().excerpt_id
9916 });
9917 buffer_highlights
9918 .next()
9919 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9920 })?
9921 };
9922 if let Some(rename_range) = rename_range {
9923 this.update(&mut cx, |this, cx| {
9924 let snapshot = cursor_buffer.read(cx).snapshot();
9925 let rename_buffer_range = rename_range.to_offset(&snapshot);
9926 let cursor_offset_in_rename_range =
9927 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9928 let cursor_offset_in_rename_range_end =
9929 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9930
9931 this.take_rename(false, cx);
9932 let buffer = this.buffer.read(cx).read(cx);
9933 let cursor_offset = selection.head().to_offset(&buffer);
9934 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9935 let rename_end = rename_start + rename_buffer_range.len();
9936 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9937 let mut old_highlight_id = None;
9938 let old_name: Arc<str> = buffer
9939 .chunks(rename_start..rename_end, true)
9940 .map(|chunk| {
9941 if old_highlight_id.is_none() {
9942 old_highlight_id = chunk.syntax_highlight_id;
9943 }
9944 chunk.text
9945 })
9946 .collect::<String>()
9947 .into();
9948
9949 drop(buffer);
9950
9951 // Position the selection in the rename editor so that it matches the current selection.
9952 this.show_local_selections = false;
9953 let rename_editor = cx.new_view(|cx| {
9954 let mut editor = Editor::single_line(cx);
9955 editor.buffer.update(cx, |buffer, cx| {
9956 buffer.edit([(0..0, old_name.clone())], None, cx)
9957 });
9958 let rename_selection_range = match cursor_offset_in_rename_range
9959 .cmp(&cursor_offset_in_rename_range_end)
9960 {
9961 Ordering::Equal => {
9962 editor.select_all(&SelectAll, cx);
9963 return editor;
9964 }
9965 Ordering::Less => {
9966 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
9967 }
9968 Ordering::Greater => {
9969 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
9970 }
9971 };
9972 if rename_selection_range.end > old_name.len() {
9973 editor.select_all(&SelectAll, cx);
9974 } else {
9975 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9976 s.select_ranges([rename_selection_range]);
9977 });
9978 }
9979 editor
9980 });
9981 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
9982 if e == &EditorEvent::Focused {
9983 cx.emit(EditorEvent::FocusedIn)
9984 }
9985 })
9986 .detach();
9987
9988 let write_highlights =
9989 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
9990 let read_highlights =
9991 this.clear_background_highlights::<DocumentHighlightRead>(cx);
9992 let ranges = write_highlights
9993 .iter()
9994 .flat_map(|(_, ranges)| ranges.iter())
9995 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
9996 .cloned()
9997 .collect();
9998
9999 this.highlight_text::<Rename>(
10000 ranges,
10001 HighlightStyle {
10002 fade_out: Some(0.6),
10003 ..Default::default()
10004 },
10005 cx,
10006 );
10007 let rename_focus_handle = rename_editor.focus_handle(cx);
10008 cx.focus(&rename_focus_handle);
10009 let block_id = this.insert_blocks(
10010 [BlockProperties {
10011 style: BlockStyle::Flex,
10012 position: range.start,
10013 height: 1,
10014 render: Box::new({
10015 let rename_editor = rename_editor.clone();
10016 move |cx: &mut BlockContext| {
10017 let mut text_style = cx.editor_style.text.clone();
10018 if let Some(highlight_style) = old_highlight_id
10019 .and_then(|h| h.style(&cx.editor_style.syntax))
10020 {
10021 text_style = text_style.highlight(highlight_style);
10022 }
10023 div()
10024 .pl(cx.anchor_x)
10025 .child(EditorElement::new(
10026 &rename_editor,
10027 EditorStyle {
10028 background: cx.theme().system().transparent,
10029 local_player: cx.editor_style.local_player,
10030 text: text_style,
10031 scrollbar_width: cx.editor_style.scrollbar_width,
10032 syntax: cx.editor_style.syntax.clone(),
10033 status: cx.editor_style.status.clone(),
10034 inlay_hints_style: HighlightStyle {
10035 color: Some(cx.theme().status().hint),
10036 font_weight: Some(FontWeight::BOLD),
10037 ..HighlightStyle::default()
10038 },
10039 suggestions_style: HighlightStyle {
10040 color: Some(cx.theme().status().predictive),
10041 ..HighlightStyle::default()
10042 },
10043 ..EditorStyle::default()
10044 },
10045 ))
10046 .into_any_element()
10047 }
10048 }),
10049 disposition: BlockDisposition::Below,
10050 priority: 0,
10051 }],
10052 Some(Autoscroll::fit()),
10053 cx,
10054 )[0];
10055 this.pending_rename = Some(RenameState {
10056 range,
10057 old_name,
10058 editor: rename_editor,
10059 block_id,
10060 });
10061 })?;
10062 }
10063
10064 Ok(())
10065 }))
10066 }
10067
10068 pub fn confirm_rename(
10069 &mut self,
10070 _: &ConfirmRename,
10071 cx: &mut ViewContext<Self>,
10072 ) -> Option<Task<Result<()>>> {
10073 let rename = self.take_rename(false, cx)?;
10074 let workspace = self.workspace()?;
10075 let (start_buffer, start) = self
10076 .buffer
10077 .read(cx)
10078 .text_anchor_for_position(rename.range.start, cx)?;
10079 let (end_buffer, end) = self
10080 .buffer
10081 .read(cx)
10082 .text_anchor_for_position(rename.range.end, cx)?;
10083 if start_buffer != end_buffer {
10084 return None;
10085 }
10086
10087 let buffer = start_buffer;
10088 let range = start..end;
10089 let old_name = rename.old_name;
10090 let new_name = rename.editor.read(cx).text(cx);
10091
10092 let rename = workspace
10093 .read(cx)
10094 .project()
10095 .clone()
10096 .update(cx, |project, cx| {
10097 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
10098 });
10099 let workspace = workspace.downgrade();
10100
10101 Some(cx.spawn(|editor, mut cx| async move {
10102 let project_transaction = rename.await?;
10103 Self::open_project_transaction(
10104 &editor,
10105 workspace,
10106 project_transaction,
10107 format!("Rename: {} → {}", old_name, new_name),
10108 cx.clone(),
10109 )
10110 .await?;
10111
10112 editor.update(&mut cx, |editor, cx| {
10113 editor.refresh_document_highlights(cx);
10114 })?;
10115 Ok(())
10116 }))
10117 }
10118
10119 fn take_rename(
10120 &mut self,
10121 moving_cursor: bool,
10122 cx: &mut ViewContext<Self>,
10123 ) -> Option<RenameState> {
10124 let rename = self.pending_rename.take()?;
10125 if rename.editor.focus_handle(cx).is_focused(cx) {
10126 cx.focus(&self.focus_handle);
10127 }
10128
10129 self.remove_blocks(
10130 [rename.block_id].into_iter().collect(),
10131 Some(Autoscroll::fit()),
10132 cx,
10133 );
10134 self.clear_highlights::<Rename>(cx);
10135 self.show_local_selections = true;
10136
10137 if moving_cursor {
10138 let rename_editor = rename.editor.read(cx);
10139 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
10140
10141 // Update the selection to match the position of the selection inside
10142 // the rename editor.
10143 let snapshot = self.buffer.read(cx).read(cx);
10144 let rename_range = rename.range.to_offset(&snapshot);
10145 let cursor_in_editor = snapshot
10146 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10147 .min(rename_range.end);
10148 drop(snapshot);
10149
10150 self.change_selections(None, cx, |s| {
10151 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10152 });
10153 } else {
10154 self.refresh_document_highlights(cx);
10155 }
10156
10157 Some(rename)
10158 }
10159
10160 pub fn pending_rename(&self) -> Option<&RenameState> {
10161 self.pending_rename.as_ref()
10162 }
10163
10164 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10165 let project = match &self.project {
10166 Some(project) => project.clone(),
10167 None => return None,
10168 };
10169
10170 Some(self.perform_format(project, FormatTrigger::Manual, cx))
10171 }
10172
10173 fn perform_format(
10174 &mut self,
10175 project: Model<Project>,
10176 trigger: FormatTrigger,
10177 cx: &mut ViewContext<Self>,
10178 ) -> Task<Result<()>> {
10179 let buffer = self.buffer().clone();
10180 let mut buffers = buffer.read(cx).all_buffers();
10181 if trigger == FormatTrigger::Save {
10182 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10183 }
10184
10185 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10186 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
10187
10188 cx.spawn(|_, mut cx| async move {
10189 let transaction = futures::select_biased! {
10190 () = timeout => {
10191 log::warn!("timed out waiting for formatting");
10192 None
10193 }
10194 transaction = format.log_err().fuse() => transaction,
10195 };
10196
10197 buffer
10198 .update(&mut cx, |buffer, cx| {
10199 if let Some(transaction) = transaction {
10200 if !buffer.is_singleton() {
10201 buffer.push_transaction(&transaction.0, cx);
10202 }
10203 }
10204
10205 cx.notify();
10206 })
10207 .ok();
10208
10209 Ok(())
10210 })
10211 }
10212
10213 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10214 if let Some(project) = self.project.clone() {
10215 self.buffer.update(cx, |multi_buffer, cx| {
10216 project.update(cx, |project, cx| {
10217 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10218 });
10219 })
10220 }
10221 }
10222
10223 fn cancel_language_server_work(
10224 &mut self,
10225 _: &CancelLanguageServerWork,
10226 cx: &mut ViewContext<Self>,
10227 ) {
10228 if let Some(project) = self.project.clone() {
10229 self.buffer.update(cx, |multi_buffer, cx| {
10230 project.update(cx, |project, cx| {
10231 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10232 });
10233 })
10234 }
10235 }
10236
10237 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10238 cx.show_character_palette();
10239 }
10240
10241 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10242 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10243 let buffer = self.buffer.read(cx).snapshot(cx);
10244 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10245 let is_valid = buffer
10246 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10247 .any(|entry| {
10248 entry.diagnostic.is_primary
10249 && !entry.range.is_empty()
10250 && entry.range.start == primary_range_start
10251 && entry.diagnostic.message == active_diagnostics.primary_message
10252 });
10253
10254 if is_valid != active_diagnostics.is_valid {
10255 active_diagnostics.is_valid = is_valid;
10256 let mut new_styles = HashMap::default();
10257 for (block_id, diagnostic) in &active_diagnostics.blocks {
10258 new_styles.insert(
10259 *block_id,
10260 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10261 );
10262 }
10263 self.display_map.update(cx, |display_map, _cx| {
10264 display_map.replace_blocks(new_styles)
10265 });
10266 }
10267 }
10268 }
10269
10270 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10271 self.dismiss_diagnostics(cx);
10272 let snapshot = self.snapshot(cx);
10273 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10274 let buffer = self.buffer.read(cx).snapshot(cx);
10275
10276 let mut primary_range = None;
10277 let mut primary_message = None;
10278 let mut group_end = Point::zero();
10279 let diagnostic_group = buffer
10280 .diagnostic_group::<MultiBufferPoint>(group_id)
10281 .filter_map(|entry| {
10282 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10283 && (entry.range.start.row == entry.range.end.row
10284 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10285 {
10286 return None;
10287 }
10288 if entry.range.end > group_end {
10289 group_end = entry.range.end;
10290 }
10291 if entry.diagnostic.is_primary {
10292 primary_range = Some(entry.range.clone());
10293 primary_message = Some(entry.diagnostic.message.clone());
10294 }
10295 Some(entry)
10296 })
10297 .collect::<Vec<_>>();
10298 let primary_range = primary_range?;
10299 let primary_message = primary_message?;
10300 let primary_range =
10301 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10302
10303 let blocks = display_map
10304 .insert_blocks(
10305 diagnostic_group.iter().map(|entry| {
10306 let diagnostic = entry.diagnostic.clone();
10307 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10308 BlockProperties {
10309 style: BlockStyle::Fixed,
10310 position: buffer.anchor_after(entry.range.start),
10311 height: message_height,
10312 render: diagnostic_block_renderer(diagnostic, None, true, true),
10313 disposition: BlockDisposition::Below,
10314 priority: 0,
10315 }
10316 }),
10317 cx,
10318 )
10319 .into_iter()
10320 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10321 .collect();
10322
10323 Some(ActiveDiagnosticGroup {
10324 primary_range,
10325 primary_message,
10326 group_id,
10327 blocks,
10328 is_valid: true,
10329 })
10330 });
10331 self.active_diagnostics.is_some()
10332 }
10333
10334 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10335 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10336 self.display_map.update(cx, |display_map, cx| {
10337 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10338 });
10339 cx.notify();
10340 }
10341 }
10342
10343 pub fn set_selections_from_remote(
10344 &mut self,
10345 selections: Vec<Selection<Anchor>>,
10346 pending_selection: Option<Selection<Anchor>>,
10347 cx: &mut ViewContext<Self>,
10348 ) {
10349 let old_cursor_position = self.selections.newest_anchor().head();
10350 self.selections.change_with(cx, |s| {
10351 s.select_anchors(selections);
10352 if let Some(pending_selection) = pending_selection {
10353 s.set_pending(pending_selection, SelectMode::Character);
10354 } else {
10355 s.clear_pending();
10356 }
10357 });
10358 self.selections_did_change(false, &old_cursor_position, true, cx);
10359 }
10360
10361 fn push_to_selection_history(&mut self) {
10362 self.selection_history.push(SelectionHistoryEntry {
10363 selections: self.selections.disjoint_anchors(),
10364 select_next_state: self.select_next_state.clone(),
10365 select_prev_state: self.select_prev_state.clone(),
10366 add_selections_state: self.add_selections_state.clone(),
10367 });
10368 }
10369
10370 pub fn transact(
10371 &mut self,
10372 cx: &mut ViewContext<Self>,
10373 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10374 ) -> Option<TransactionId> {
10375 self.start_transaction_at(Instant::now(), cx);
10376 update(self, cx);
10377 self.end_transaction_at(Instant::now(), cx)
10378 }
10379
10380 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10381 self.end_selection(cx);
10382 if let Some(tx_id) = self
10383 .buffer
10384 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10385 {
10386 self.selection_history
10387 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10388 cx.emit(EditorEvent::TransactionBegun {
10389 transaction_id: tx_id,
10390 })
10391 }
10392 }
10393
10394 fn end_transaction_at(
10395 &mut self,
10396 now: Instant,
10397 cx: &mut ViewContext<Self>,
10398 ) -> Option<TransactionId> {
10399 if let Some(transaction_id) = self
10400 .buffer
10401 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10402 {
10403 if let Some((_, end_selections)) =
10404 self.selection_history.transaction_mut(transaction_id)
10405 {
10406 *end_selections = Some(self.selections.disjoint_anchors());
10407 } else {
10408 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10409 }
10410
10411 cx.emit(EditorEvent::Edited { transaction_id });
10412 Some(transaction_id)
10413 } else {
10414 None
10415 }
10416 }
10417
10418 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10419 let mut fold_ranges = Vec::new();
10420
10421 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10422
10423 let selections = self.selections.all_adjusted(cx);
10424 for selection in selections {
10425 let range = selection.range().sorted();
10426 let buffer_start_row = range.start.row;
10427
10428 for row in (0..=range.end.row).rev() {
10429 if let Some((foldable_range, fold_text)) =
10430 display_map.foldable_range(MultiBufferRow(row))
10431 {
10432 if foldable_range.end.row >= buffer_start_row {
10433 fold_ranges.push((foldable_range, fold_text));
10434 if row <= range.start.row {
10435 break;
10436 }
10437 }
10438 }
10439 }
10440 }
10441
10442 self.fold_ranges(fold_ranges, true, cx);
10443 }
10444
10445 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10446 let buffer_row = fold_at.buffer_row;
10447 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10448
10449 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
10450 let autoscroll = self
10451 .selections
10452 .all::<Point>(cx)
10453 .iter()
10454 .any(|selection| fold_range.overlaps(&selection.range()));
10455
10456 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
10457 }
10458 }
10459
10460 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10461 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10462 let buffer = &display_map.buffer_snapshot;
10463 let selections = self.selections.all::<Point>(cx);
10464 let ranges = selections
10465 .iter()
10466 .map(|s| {
10467 let range = s.display_range(&display_map).sorted();
10468 let mut start = range.start.to_point(&display_map);
10469 let mut end = range.end.to_point(&display_map);
10470 start.column = 0;
10471 end.column = buffer.line_len(MultiBufferRow(end.row));
10472 start..end
10473 })
10474 .collect::<Vec<_>>();
10475
10476 self.unfold_ranges(ranges, true, true, cx);
10477 }
10478
10479 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10480 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10481
10482 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10483 ..Point::new(
10484 unfold_at.buffer_row.0,
10485 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10486 );
10487
10488 let autoscroll = self
10489 .selections
10490 .all::<Point>(cx)
10491 .iter()
10492 .any(|selection| selection.range().overlaps(&intersection_range));
10493
10494 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
10495 }
10496
10497 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10498 let selections = self.selections.all::<Point>(cx);
10499 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10500 let line_mode = self.selections.line_mode;
10501 let ranges = selections.into_iter().map(|s| {
10502 if line_mode {
10503 let start = Point::new(s.start.row, 0);
10504 let end = Point::new(
10505 s.end.row,
10506 display_map
10507 .buffer_snapshot
10508 .line_len(MultiBufferRow(s.end.row)),
10509 );
10510 (start..end, display_map.fold_placeholder.clone())
10511 } else {
10512 (s.start..s.end, display_map.fold_placeholder.clone())
10513 }
10514 });
10515 self.fold_ranges(ranges, true, cx);
10516 }
10517
10518 pub fn fold_ranges<T: ToOffset + Clone>(
10519 &mut self,
10520 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
10521 auto_scroll: bool,
10522 cx: &mut ViewContext<Self>,
10523 ) {
10524 let mut fold_ranges = Vec::new();
10525 let mut buffers_affected = HashMap::default();
10526 let multi_buffer = self.buffer().read(cx);
10527 for (fold_range, fold_text) in ranges {
10528 if let Some((_, buffer, _)) =
10529 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
10530 {
10531 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10532 };
10533 fold_ranges.push((fold_range, fold_text));
10534 }
10535
10536 let mut ranges = fold_ranges.into_iter().peekable();
10537 if ranges.peek().is_some() {
10538 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
10539
10540 if auto_scroll {
10541 self.request_autoscroll(Autoscroll::fit(), cx);
10542 }
10543
10544 for buffer in buffers_affected.into_values() {
10545 self.sync_expanded_diff_hunks(buffer, cx);
10546 }
10547
10548 cx.notify();
10549
10550 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10551 // Clear diagnostics block when folding a range that contains it.
10552 let snapshot = self.snapshot(cx);
10553 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10554 drop(snapshot);
10555 self.active_diagnostics = Some(active_diagnostics);
10556 self.dismiss_diagnostics(cx);
10557 } else {
10558 self.active_diagnostics = Some(active_diagnostics);
10559 }
10560 }
10561
10562 self.scrollbar_marker_state.dirty = true;
10563 }
10564 }
10565
10566 pub fn unfold_ranges<T: ToOffset + Clone>(
10567 &mut self,
10568 ranges: impl IntoIterator<Item = Range<T>>,
10569 inclusive: bool,
10570 auto_scroll: bool,
10571 cx: &mut ViewContext<Self>,
10572 ) {
10573 let mut unfold_ranges = Vec::new();
10574 let mut buffers_affected = HashMap::default();
10575 let multi_buffer = self.buffer().read(cx);
10576 for range in ranges {
10577 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10578 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10579 };
10580 unfold_ranges.push(range);
10581 }
10582
10583 let mut ranges = unfold_ranges.into_iter().peekable();
10584 if ranges.peek().is_some() {
10585 self.display_map
10586 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
10587 if auto_scroll {
10588 self.request_autoscroll(Autoscroll::fit(), cx);
10589 }
10590
10591 for buffer in buffers_affected.into_values() {
10592 self.sync_expanded_diff_hunks(buffer, cx);
10593 }
10594
10595 cx.notify();
10596 self.scrollbar_marker_state.dirty = true;
10597 self.active_indent_guides_state.dirty = true;
10598 }
10599 }
10600
10601 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
10602 self.display_map.read(cx).fold_placeholder.clone()
10603 }
10604
10605 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10606 if hovered != self.gutter_hovered {
10607 self.gutter_hovered = hovered;
10608 cx.notify();
10609 }
10610 }
10611
10612 pub fn insert_blocks(
10613 &mut self,
10614 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
10615 autoscroll: Option<Autoscroll>,
10616 cx: &mut ViewContext<Self>,
10617 ) -> Vec<CustomBlockId> {
10618 let blocks = self
10619 .display_map
10620 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
10621 if let Some(autoscroll) = autoscroll {
10622 self.request_autoscroll(autoscroll, cx);
10623 }
10624 cx.notify();
10625 blocks
10626 }
10627
10628 pub fn resize_blocks(
10629 &mut self,
10630 heights: HashMap<CustomBlockId, u32>,
10631 autoscroll: Option<Autoscroll>,
10632 cx: &mut ViewContext<Self>,
10633 ) {
10634 self.display_map
10635 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
10636 if let Some(autoscroll) = autoscroll {
10637 self.request_autoscroll(autoscroll, cx);
10638 }
10639 cx.notify();
10640 }
10641
10642 pub fn replace_blocks(
10643 &mut self,
10644 renderers: HashMap<CustomBlockId, RenderBlock>,
10645 autoscroll: Option<Autoscroll>,
10646 cx: &mut ViewContext<Self>,
10647 ) {
10648 self.display_map
10649 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
10650 if let Some(autoscroll) = autoscroll {
10651 self.request_autoscroll(autoscroll, cx);
10652 }
10653 cx.notify();
10654 }
10655
10656 pub fn remove_blocks(
10657 &mut self,
10658 block_ids: HashSet<CustomBlockId>,
10659 autoscroll: Option<Autoscroll>,
10660 cx: &mut ViewContext<Self>,
10661 ) {
10662 self.display_map.update(cx, |display_map, cx| {
10663 display_map.remove_blocks(block_ids, cx)
10664 });
10665 if let Some(autoscroll) = autoscroll {
10666 self.request_autoscroll(autoscroll, cx);
10667 }
10668 cx.notify();
10669 }
10670
10671 pub fn row_for_block(
10672 &self,
10673 block_id: CustomBlockId,
10674 cx: &mut ViewContext<Self>,
10675 ) -> Option<DisplayRow> {
10676 self.display_map
10677 .update(cx, |map, cx| map.row_for_block(block_id, cx))
10678 }
10679
10680 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
10681 self.focused_block = Some(focused_block);
10682 }
10683
10684 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
10685 self.focused_block.take()
10686 }
10687
10688 pub fn insert_creases(
10689 &mut self,
10690 creases: impl IntoIterator<Item = Crease>,
10691 cx: &mut ViewContext<Self>,
10692 ) -> Vec<CreaseId> {
10693 self.display_map
10694 .update(cx, |map, cx| map.insert_creases(creases, cx))
10695 }
10696
10697 pub fn remove_creases(
10698 &mut self,
10699 ids: impl IntoIterator<Item = CreaseId>,
10700 cx: &mut ViewContext<Self>,
10701 ) {
10702 self.display_map
10703 .update(cx, |map, cx| map.remove_creases(ids, cx));
10704 }
10705
10706 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
10707 self.display_map
10708 .update(cx, |map, cx| map.snapshot(cx))
10709 .longest_row()
10710 }
10711
10712 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
10713 self.display_map
10714 .update(cx, |map, cx| map.snapshot(cx))
10715 .max_point()
10716 }
10717
10718 pub fn text(&self, cx: &AppContext) -> String {
10719 self.buffer.read(cx).read(cx).text()
10720 }
10721
10722 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
10723 let text = self.text(cx);
10724 let text = text.trim();
10725
10726 if text.is_empty() {
10727 return None;
10728 }
10729
10730 Some(text.to_string())
10731 }
10732
10733 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
10734 self.transact(cx, |this, cx| {
10735 this.buffer
10736 .read(cx)
10737 .as_singleton()
10738 .expect("you can only call set_text on editors for singleton buffers")
10739 .update(cx, |buffer, cx| buffer.set_text(text, cx));
10740 });
10741 }
10742
10743 pub fn display_text(&self, cx: &mut AppContext) -> String {
10744 self.display_map
10745 .update(cx, |map, cx| map.snapshot(cx))
10746 .text()
10747 }
10748
10749 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
10750 let mut wrap_guides = smallvec::smallvec![];
10751
10752 if self.show_wrap_guides == Some(false) {
10753 return wrap_guides;
10754 }
10755
10756 let settings = self.buffer.read(cx).settings_at(0, cx);
10757 if settings.show_wrap_guides {
10758 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
10759 wrap_guides.push((soft_wrap as usize, true));
10760 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
10761 wrap_guides.push((soft_wrap as usize, true));
10762 }
10763 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
10764 }
10765
10766 wrap_guides
10767 }
10768
10769 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
10770 let settings = self.buffer.read(cx).settings_at(0, cx);
10771 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
10772 match mode {
10773 language_settings::SoftWrap::None => SoftWrap::None,
10774 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
10775 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
10776 language_settings::SoftWrap::PreferredLineLength => {
10777 SoftWrap::Column(settings.preferred_line_length)
10778 }
10779 language_settings::SoftWrap::Bounded => {
10780 SoftWrap::Bounded(settings.preferred_line_length)
10781 }
10782 }
10783 }
10784
10785 pub fn set_soft_wrap_mode(
10786 &mut self,
10787 mode: language_settings::SoftWrap,
10788 cx: &mut ViewContext<Self>,
10789 ) {
10790 self.soft_wrap_mode_override = Some(mode);
10791 cx.notify();
10792 }
10793
10794 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
10795 let rem_size = cx.rem_size();
10796 self.display_map.update(cx, |map, cx| {
10797 map.set_font(
10798 style.text.font(),
10799 style.text.font_size.to_pixels(rem_size),
10800 cx,
10801 )
10802 });
10803 self.style = Some(style);
10804 }
10805
10806 pub fn style(&self) -> Option<&EditorStyle> {
10807 self.style.as_ref()
10808 }
10809
10810 // Called by the element. This method is not designed to be called outside of the editor
10811 // element's layout code because it does not notify when rewrapping is computed synchronously.
10812 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
10813 self.display_map
10814 .update(cx, |map, cx| map.set_wrap_width(width, cx))
10815 }
10816
10817 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
10818 if self.soft_wrap_mode_override.is_some() {
10819 self.soft_wrap_mode_override.take();
10820 } else {
10821 let soft_wrap = match self.soft_wrap_mode(cx) {
10822 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
10823 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
10824 language_settings::SoftWrap::PreferLine
10825 }
10826 };
10827 self.soft_wrap_mode_override = Some(soft_wrap);
10828 }
10829 cx.notify();
10830 }
10831
10832 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
10833 let Some(workspace) = self.workspace() else {
10834 return;
10835 };
10836 let fs = workspace.read(cx).app_state().fs.clone();
10837 let current_show = TabBarSettings::get_global(cx).show;
10838 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
10839 setting.show = Some(!current_show);
10840 });
10841 }
10842
10843 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
10844 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
10845 self.buffer
10846 .read(cx)
10847 .settings_at(0, cx)
10848 .indent_guides
10849 .enabled
10850 });
10851 self.show_indent_guides = Some(!currently_enabled);
10852 cx.notify();
10853 }
10854
10855 fn should_show_indent_guides(&self) -> Option<bool> {
10856 self.show_indent_guides
10857 }
10858
10859 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
10860 let mut editor_settings = EditorSettings::get_global(cx).clone();
10861 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
10862 EditorSettings::override_global(editor_settings, cx);
10863 }
10864
10865 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
10866 self.use_relative_line_numbers
10867 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
10868 }
10869
10870 pub fn toggle_relative_line_numbers(
10871 &mut self,
10872 _: &ToggleRelativeLineNumbers,
10873 cx: &mut ViewContext<Self>,
10874 ) {
10875 let is_relative = self.should_use_relative_line_numbers(cx);
10876 self.set_relative_line_number(Some(!is_relative), cx)
10877 }
10878
10879 pub fn set_relative_line_number(
10880 &mut self,
10881 is_relative: Option<bool>,
10882 cx: &mut ViewContext<Self>,
10883 ) {
10884 self.use_relative_line_numbers = is_relative;
10885 cx.notify();
10886 }
10887
10888 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
10889 self.show_gutter = show_gutter;
10890 cx.notify();
10891 }
10892
10893 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
10894 self.show_line_numbers = Some(show_line_numbers);
10895 cx.notify();
10896 }
10897
10898 pub fn set_show_git_diff_gutter(
10899 &mut self,
10900 show_git_diff_gutter: bool,
10901 cx: &mut ViewContext<Self>,
10902 ) {
10903 self.show_git_diff_gutter = Some(show_git_diff_gutter);
10904 cx.notify();
10905 }
10906
10907 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
10908 self.show_code_actions = Some(show_code_actions);
10909 cx.notify();
10910 }
10911
10912 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
10913 self.show_runnables = Some(show_runnables);
10914 cx.notify();
10915 }
10916
10917 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
10918 if self.display_map.read(cx).masked != masked {
10919 self.display_map.update(cx, |map, _| map.masked = masked);
10920 }
10921 cx.notify()
10922 }
10923
10924 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
10925 self.show_wrap_guides = Some(show_wrap_guides);
10926 cx.notify();
10927 }
10928
10929 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
10930 self.show_indent_guides = Some(show_indent_guides);
10931 cx.notify();
10932 }
10933
10934 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
10935 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10936 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10937 if let Some(dir) = file.abs_path(cx).parent() {
10938 return Some(dir.to_owned());
10939 }
10940 }
10941
10942 if let Some(project_path) = buffer.read(cx).project_path(cx) {
10943 return Some(project_path.path.to_path_buf());
10944 }
10945 }
10946
10947 None
10948 }
10949
10950 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
10951 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10952 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10953 cx.reveal_path(&file.abs_path(cx));
10954 }
10955 }
10956 }
10957
10958 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
10959 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10960 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10961 if let Some(path) = file.abs_path(cx).to_str() {
10962 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
10963 }
10964 }
10965 }
10966 }
10967
10968 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
10969 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10970 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10971 if let Some(path) = file.path().to_str() {
10972 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
10973 }
10974 }
10975 }
10976 }
10977
10978 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
10979 self.show_git_blame_gutter = !self.show_git_blame_gutter;
10980
10981 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
10982 self.start_git_blame(true, cx);
10983 }
10984
10985 cx.notify();
10986 }
10987
10988 pub fn toggle_git_blame_inline(
10989 &mut self,
10990 _: &ToggleGitBlameInline,
10991 cx: &mut ViewContext<Self>,
10992 ) {
10993 self.toggle_git_blame_inline_internal(true, cx);
10994 cx.notify();
10995 }
10996
10997 pub fn git_blame_inline_enabled(&self) -> bool {
10998 self.git_blame_inline_enabled
10999 }
11000
11001 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11002 self.show_selection_menu = self
11003 .show_selection_menu
11004 .map(|show_selections_menu| !show_selections_menu)
11005 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11006
11007 cx.notify();
11008 }
11009
11010 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11011 self.show_selection_menu
11012 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11013 }
11014
11015 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11016 if let Some(project) = self.project.as_ref() {
11017 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11018 return;
11019 };
11020
11021 if buffer.read(cx).file().is_none() {
11022 return;
11023 }
11024
11025 let focused = self.focus_handle(cx).contains_focused(cx);
11026
11027 let project = project.clone();
11028 let blame =
11029 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11030 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11031 self.blame = Some(blame);
11032 }
11033 }
11034
11035 fn toggle_git_blame_inline_internal(
11036 &mut self,
11037 user_triggered: bool,
11038 cx: &mut ViewContext<Self>,
11039 ) {
11040 if self.git_blame_inline_enabled {
11041 self.git_blame_inline_enabled = false;
11042 self.show_git_blame_inline = false;
11043 self.show_git_blame_inline_delay_task.take();
11044 } else {
11045 self.git_blame_inline_enabled = true;
11046 self.start_git_blame_inline(user_triggered, cx);
11047 }
11048
11049 cx.notify();
11050 }
11051
11052 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11053 self.start_git_blame(user_triggered, cx);
11054
11055 if ProjectSettings::get_global(cx)
11056 .git
11057 .inline_blame_delay()
11058 .is_some()
11059 {
11060 self.start_inline_blame_timer(cx);
11061 } else {
11062 self.show_git_blame_inline = true
11063 }
11064 }
11065
11066 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11067 self.blame.as_ref()
11068 }
11069
11070 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11071 self.show_git_blame_gutter && self.has_blame_entries(cx)
11072 }
11073
11074 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11075 self.show_git_blame_inline
11076 && self.focus_handle.is_focused(cx)
11077 && !self.newest_selection_head_on_empty_line(cx)
11078 && self.has_blame_entries(cx)
11079 }
11080
11081 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11082 self.blame()
11083 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11084 }
11085
11086 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11087 let cursor_anchor = self.selections.newest_anchor().head();
11088
11089 let snapshot = self.buffer.read(cx).snapshot(cx);
11090 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11091
11092 snapshot.line_len(buffer_row) == 0
11093 }
11094
11095 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
11096 let (path, selection, repo) = maybe!({
11097 let project_handle = self.project.as_ref()?.clone();
11098 let project = project_handle.read(cx);
11099
11100 let selection = self.selections.newest::<Point>(cx);
11101 let selection_range = selection.range();
11102
11103 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11104 (buffer, selection_range.start.row..selection_range.end.row)
11105 } else {
11106 let buffer_ranges = self
11107 .buffer()
11108 .read(cx)
11109 .range_to_buffer_ranges(selection_range, cx);
11110
11111 let (buffer, range, _) = if selection.reversed {
11112 buffer_ranges.first()
11113 } else {
11114 buffer_ranges.last()
11115 }?;
11116
11117 let snapshot = buffer.read(cx).snapshot();
11118 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11119 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11120 (buffer.clone(), selection)
11121 };
11122
11123 let path = buffer
11124 .read(cx)
11125 .file()?
11126 .as_local()?
11127 .path()
11128 .to_str()?
11129 .to_string();
11130 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
11131 Some((path, selection, repo))
11132 })
11133 .ok_or_else(|| anyhow!("unable to open git repository"))?;
11134
11135 const REMOTE_NAME: &str = "origin";
11136 let origin_url = repo
11137 .remote_url(REMOTE_NAME)
11138 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
11139 let sha = repo
11140 .head_sha()
11141 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
11142
11143 let (provider, remote) =
11144 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
11145 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
11146
11147 Ok(provider.build_permalink(
11148 remote,
11149 BuildPermalinkParams {
11150 sha: &sha,
11151 path: &path,
11152 selection: Some(selection),
11153 },
11154 ))
11155 }
11156
11157 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11158 let permalink = self.get_permalink_to_line(cx);
11159
11160 match permalink {
11161 Ok(permalink) => {
11162 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11163 }
11164 Err(err) => {
11165 let message = format!("Failed to copy permalink: {err}");
11166
11167 Err::<(), anyhow::Error>(err).log_err();
11168
11169 if let Some(workspace) = self.workspace() {
11170 workspace.update(cx, |workspace, cx| {
11171 struct CopyPermalinkToLine;
11172
11173 workspace.show_toast(
11174 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
11175 cx,
11176 )
11177 })
11178 }
11179 }
11180 }
11181 }
11182
11183 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11184 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11185 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11186 if let Some(path) = file.path().to_str() {
11187 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11188 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11189 }
11190 }
11191 }
11192 }
11193
11194 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11195 let permalink = self.get_permalink_to_line(cx);
11196
11197 match permalink {
11198 Ok(permalink) => {
11199 cx.open_url(permalink.as_ref());
11200 }
11201 Err(err) => {
11202 let message = format!("Failed to open permalink: {err}");
11203
11204 Err::<(), anyhow::Error>(err).log_err();
11205
11206 if let Some(workspace) = self.workspace() {
11207 workspace.update(cx, |workspace, cx| {
11208 struct OpenPermalinkToLine;
11209
11210 workspace.show_toast(
11211 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
11212 cx,
11213 )
11214 })
11215 }
11216 }
11217 }
11218 }
11219
11220 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
11221 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
11222 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
11223 pub fn highlight_rows<T: 'static>(
11224 &mut self,
11225 rows: RangeInclusive<Anchor>,
11226 color: Option<Hsla>,
11227 should_autoscroll: bool,
11228 cx: &mut ViewContext<Self>,
11229 ) {
11230 let snapshot = self.buffer().read(cx).snapshot(cx);
11231 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11232 let existing_highlight_index = row_highlights.binary_search_by(|highlight| {
11233 highlight
11234 .range
11235 .start()
11236 .cmp(rows.start(), &snapshot)
11237 .then(highlight.range.end().cmp(rows.end(), &snapshot))
11238 });
11239 match (color, existing_highlight_index) {
11240 (Some(_), Ok(ix)) | (_, Err(ix)) => row_highlights.insert(
11241 ix,
11242 RowHighlight {
11243 index: post_inc(&mut self.highlight_order),
11244 range: rows,
11245 should_autoscroll,
11246 color,
11247 },
11248 ),
11249 (None, Ok(i)) => {
11250 row_highlights.remove(i);
11251 }
11252 }
11253 }
11254
11255 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11256 pub fn clear_row_highlights<T: 'static>(&mut self) {
11257 self.highlighted_rows.remove(&TypeId::of::<T>());
11258 }
11259
11260 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11261 pub fn highlighted_rows<T: 'static>(
11262 &self,
11263 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
11264 Some(
11265 self.highlighted_rows
11266 .get(&TypeId::of::<T>())?
11267 .iter()
11268 .map(|highlight| (&highlight.range, highlight.color.as_ref())),
11269 )
11270 }
11271
11272 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11273 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11274 /// Allows to ignore certain kinds of highlights.
11275 pub fn highlighted_display_rows(
11276 &mut self,
11277 cx: &mut WindowContext,
11278 ) -> BTreeMap<DisplayRow, Hsla> {
11279 let snapshot = self.snapshot(cx);
11280 let mut used_highlight_orders = HashMap::default();
11281 self.highlighted_rows
11282 .iter()
11283 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11284 .fold(
11285 BTreeMap::<DisplayRow, Hsla>::new(),
11286 |mut unique_rows, highlight| {
11287 let start_row = highlight.range.start().to_display_point(&snapshot).row();
11288 let end_row = highlight.range.end().to_display_point(&snapshot).row();
11289 for row in start_row.0..=end_row.0 {
11290 let used_index =
11291 used_highlight_orders.entry(row).or_insert(highlight.index);
11292 if highlight.index >= *used_index {
11293 *used_index = highlight.index;
11294 match highlight.color {
11295 Some(hsla) => unique_rows.insert(DisplayRow(row), hsla),
11296 None => unique_rows.remove(&DisplayRow(row)),
11297 };
11298 }
11299 }
11300 unique_rows
11301 },
11302 )
11303 }
11304
11305 pub fn highlighted_display_row_for_autoscroll(
11306 &self,
11307 snapshot: &DisplaySnapshot,
11308 ) -> Option<DisplayRow> {
11309 self.highlighted_rows
11310 .values()
11311 .flat_map(|highlighted_rows| highlighted_rows.iter())
11312 .filter_map(|highlight| {
11313 if highlight.color.is_none() || !highlight.should_autoscroll {
11314 return None;
11315 }
11316 Some(highlight.range.start().to_display_point(snapshot).row())
11317 })
11318 .min()
11319 }
11320
11321 pub fn set_search_within_ranges(
11322 &mut self,
11323 ranges: &[Range<Anchor>],
11324 cx: &mut ViewContext<Self>,
11325 ) {
11326 self.highlight_background::<SearchWithinRange>(
11327 ranges,
11328 |colors| colors.editor_document_highlight_read_background,
11329 cx,
11330 )
11331 }
11332
11333 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11334 self.breadcrumb_header = Some(new_header);
11335 }
11336
11337 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11338 self.clear_background_highlights::<SearchWithinRange>(cx);
11339 }
11340
11341 pub fn highlight_background<T: 'static>(
11342 &mut self,
11343 ranges: &[Range<Anchor>],
11344 color_fetcher: fn(&ThemeColors) -> Hsla,
11345 cx: &mut ViewContext<Self>,
11346 ) {
11347 self.background_highlights
11348 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11349 self.scrollbar_marker_state.dirty = true;
11350 cx.notify();
11351 }
11352
11353 pub fn clear_background_highlights<T: 'static>(
11354 &mut self,
11355 cx: &mut ViewContext<Self>,
11356 ) -> Option<BackgroundHighlight> {
11357 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11358 if !text_highlights.1.is_empty() {
11359 self.scrollbar_marker_state.dirty = true;
11360 cx.notify();
11361 }
11362 Some(text_highlights)
11363 }
11364
11365 pub fn highlight_gutter<T: 'static>(
11366 &mut self,
11367 ranges: &[Range<Anchor>],
11368 color_fetcher: fn(&AppContext) -> Hsla,
11369 cx: &mut ViewContext<Self>,
11370 ) {
11371 self.gutter_highlights
11372 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11373 cx.notify();
11374 }
11375
11376 pub fn clear_gutter_highlights<T: 'static>(
11377 &mut self,
11378 cx: &mut ViewContext<Self>,
11379 ) -> Option<GutterHighlight> {
11380 cx.notify();
11381 self.gutter_highlights.remove(&TypeId::of::<T>())
11382 }
11383
11384 #[cfg(feature = "test-support")]
11385 pub fn all_text_background_highlights(
11386 &mut self,
11387 cx: &mut ViewContext<Self>,
11388 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11389 let snapshot = self.snapshot(cx);
11390 let buffer = &snapshot.buffer_snapshot;
11391 let start = buffer.anchor_before(0);
11392 let end = buffer.anchor_after(buffer.len());
11393 let theme = cx.theme().colors();
11394 self.background_highlights_in_range(start..end, &snapshot, theme)
11395 }
11396
11397 #[cfg(feature = "test-support")]
11398 pub fn search_background_highlights(
11399 &mut self,
11400 cx: &mut ViewContext<Self>,
11401 ) -> Vec<Range<Point>> {
11402 let snapshot = self.buffer().read(cx).snapshot(cx);
11403
11404 let highlights = self
11405 .background_highlights
11406 .get(&TypeId::of::<items::BufferSearchHighlights>());
11407
11408 if let Some((_color, ranges)) = highlights {
11409 ranges
11410 .iter()
11411 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11412 .collect_vec()
11413 } else {
11414 vec![]
11415 }
11416 }
11417
11418 fn document_highlights_for_position<'a>(
11419 &'a self,
11420 position: Anchor,
11421 buffer: &'a MultiBufferSnapshot,
11422 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
11423 let read_highlights = self
11424 .background_highlights
11425 .get(&TypeId::of::<DocumentHighlightRead>())
11426 .map(|h| &h.1);
11427 let write_highlights = self
11428 .background_highlights
11429 .get(&TypeId::of::<DocumentHighlightWrite>())
11430 .map(|h| &h.1);
11431 let left_position = position.bias_left(buffer);
11432 let right_position = position.bias_right(buffer);
11433 read_highlights
11434 .into_iter()
11435 .chain(write_highlights)
11436 .flat_map(move |ranges| {
11437 let start_ix = match ranges.binary_search_by(|probe| {
11438 let cmp = probe.end.cmp(&left_position, buffer);
11439 if cmp.is_ge() {
11440 Ordering::Greater
11441 } else {
11442 Ordering::Less
11443 }
11444 }) {
11445 Ok(i) | Err(i) => i,
11446 };
11447
11448 ranges[start_ix..]
11449 .iter()
11450 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11451 })
11452 }
11453
11454 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11455 self.background_highlights
11456 .get(&TypeId::of::<T>())
11457 .map_or(false, |(_, highlights)| !highlights.is_empty())
11458 }
11459
11460 pub fn background_highlights_in_range(
11461 &self,
11462 search_range: Range<Anchor>,
11463 display_snapshot: &DisplaySnapshot,
11464 theme: &ThemeColors,
11465 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11466 let mut results = Vec::new();
11467 for (color_fetcher, ranges) in self.background_highlights.values() {
11468 let color = color_fetcher(theme);
11469 let start_ix = match ranges.binary_search_by(|probe| {
11470 let cmp = probe
11471 .end
11472 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11473 if cmp.is_gt() {
11474 Ordering::Greater
11475 } else {
11476 Ordering::Less
11477 }
11478 }) {
11479 Ok(i) | Err(i) => i,
11480 };
11481 for range in &ranges[start_ix..] {
11482 if range
11483 .start
11484 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11485 .is_ge()
11486 {
11487 break;
11488 }
11489
11490 let start = range.start.to_display_point(display_snapshot);
11491 let end = range.end.to_display_point(display_snapshot);
11492 results.push((start..end, color))
11493 }
11494 }
11495 results
11496 }
11497
11498 pub fn background_highlight_row_ranges<T: 'static>(
11499 &self,
11500 search_range: Range<Anchor>,
11501 display_snapshot: &DisplaySnapshot,
11502 count: usize,
11503 ) -> Vec<RangeInclusive<DisplayPoint>> {
11504 let mut results = Vec::new();
11505 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
11506 return vec![];
11507 };
11508
11509 let start_ix = match ranges.binary_search_by(|probe| {
11510 let cmp = probe
11511 .end
11512 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11513 if cmp.is_gt() {
11514 Ordering::Greater
11515 } else {
11516 Ordering::Less
11517 }
11518 }) {
11519 Ok(i) | Err(i) => i,
11520 };
11521 let mut push_region = |start: Option<Point>, end: Option<Point>| {
11522 if let (Some(start_display), Some(end_display)) = (start, end) {
11523 results.push(
11524 start_display.to_display_point(display_snapshot)
11525 ..=end_display.to_display_point(display_snapshot),
11526 );
11527 }
11528 };
11529 let mut start_row: Option<Point> = None;
11530 let mut end_row: Option<Point> = None;
11531 if ranges.len() > count {
11532 return Vec::new();
11533 }
11534 for range in &ranges[start_ix..] {
11535 if range
11536 .start
11537 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11538 .is_ge()
11539 {
11540 break;
11541 }
11542 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
11543 if let Some(current_row) = &end_row {
11544 if end.row == current_row.row {
11545 continue;
11546 }
11547 }
11548 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
11549 if start_row.is_none() {
11550 assert_eq!(end_row, None);
11551 start_row = Some(start);
11552 end_row = Some(end);
11553 continue;
11554 }
11555 if let Some(current_end) = end_row.as_mut() {
11556 if start.row > current_end.row + 1 {
11557 push_region(start_row, end_row);
11558 start_row = Some(start);
11559 end_row = Some(end);
11560 } else {
11561 // Merge two hunks.
11562 *current_end = end;
11563 }
11564 } else {
11565 unreachable!();
11566 }
11567 }
11568 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
11569 push_region(start_row, end_row);
11570 results
11571 }
11572
11573 pub fn gutter_highlights_in_range(
11574 &self,
11575 search_range: Range<Anchor>,
11576 display_snapshot: &DisplaySnapshot,
11577 cx: &AppContext,
11578 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11579 let mut results = Vec::new();
11580 for (color_fetcher, ranges) in self.gutter_highlights.values() {
11581 let color = color_fetcher(cx);
11582 let start_ix = match ranges.binary_search_by(|probe| {
11583 let cmp = probe
11584 .end
11585 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11586 if cmp.is_gt() {
11587 Ordering::Greater
11588 } else {
11589 Ordering::Less
11590 }
11591 }) {
11592 Ok(i) | Err(i) => i,
11593 };
11594 for range in &ranges[start_ix..] {
11595 if range
11596 .start
11597 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11598 .is_ge()
11599 {
11600 break;
11601 }
11602
11603 let start = range.start.to_display_point(display_snapshot);
11604 let end = range.end.to_display_point(display_snapshot);
11605 results.push((start..end, color))
11606 }
11607 }
11608 results
11609 }
11610
11611 /// Get the text ranges corresponding to the redaction query
11612 pub fn redacted_ranges(
11613 &self,
11614 search_range: Range<Anchor>,
11615 display_snapshot: &DisplaySnapshot,
11616 cx: &WindowContext,
11617 ) -> Vec<Range<DisplayPoint>> {
11618 display_snapshot
11619 .buffer_snapshot
11620 .redacted_ranges(search_range, |file| {
11621 if let Some(file) = file {
11622 file.is_private()
11623 && EditorSettings::get(
11624 Some(SettingsLocation {
11625 worktree_id: file.worktree_id(cx),
11626 path: file.path().as_ref(),
11627 }),
11628 cx,
11629 )
11630 .redact_private_values
11631 } else {
11632 false
11633 }
11634 })
11635 .map(|range| {
11636 range.start.to_display_point(display_snapshot)
11637 ..range.end.to_display_point(display_snapshot)
11638 })
11639 .collect()
11640 }
11641
11642 pub fn highlight_text<T: 'static>(
11643 &mut self,
11644 ranges: Vec<Range<Anchor>>,
11645 style: HighlightStyle,
11646 cx: &mut ViewContext<Self>,
11647 ) {
11648 self.display_map.update(cx, |map, _| {
11649 map.highlight_text(TypeId::of::<T>(), ranges, style)
11650 });
11651 cx.notify();
11652 }
11653
11654 pub(crate) fn highlight_inlays<T: 'static>(
11655 &mut self,
11656 highlights: Vec<InlayHighlight>,
11657 style: HighlightStyle,
11658 cx: &mut ViewContext<Self>,
11659 ) {
11660 self.display_map.update(cx, |map, _| {
11661 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
11662 });
11663 cx.notify();
11664 }
11665
11666 pub fn text_highlights<'a, T: 'static>(
11667 &'a self,
11668 cx: &'a AppContext,
11669 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
11670 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
11671 }
11672
11673 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
11674 let cleared = self
11675 .display_map
11676 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
11677 if cleared {
11678 cx.notify();
11679 }
11680 }
11681
11682 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
11683 (self.read_only(cx) || self.blink_manager.read(cx).visible())
11684 && self.focus_handle.is_focused(cx)
11685 }
11686
11687 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
11688 self.show_cursor_when_unfocused = is_enabled;
11689 cx.notify();
11690 }
11691
11692 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
11693 cx.notify();
11694 }
11695
11696 fn on_buffer_event(
11697 &mut self,
11698 multibuffer: Model<MultiBuffer>,
11699 event: &multi_buffer::Event,
11700 cx: &mut ViewContext<Self>,
11701 ) {
11702 match event {
11703 multi_buffer::Event::Edited {
11704 singleton_buffer_edited,
11705 } => {
11706 self.scrollbar_marker_state.dirty = true;
11707 self.active_indent_guides_state.dirty = true;
11708 self.refresh_active_diagnostics(cx);
11709 self.refresh_code_actions(cx);
11710 if self.has_active_inline_completion(cx) {
11711 self.update_visible_inline_completion(cx);
11712 }
11713 cx.emit(EditorEvent::BufferEdited);
11714 cx.emit(SearchEvent::MatchesInvalidated);
11715 if *singleton_buffer_edited {
11716 if let Some(project) = &self.project {
11717 let project = project.read(cx);
11718 #[allow(clippy::mutable_key_type)]
11719 let languages_affected = multibuffer
11720 .read(cx)
11721 .all_buffers()
11722 .into_iter()
11723 .filter_map(|buffer| {
11724 let buffer = buffer.read(cx);
11725 let language = buffer.language()?;
11726 if project.is_local_or_ssh()
11727 && project.language_servers_for_buffer(buffer, cx).count() == 0
11728 {
11729 None
11730 } else {
11731 Some(language)
11732 }
11733 })
11734 .cloned()
11735 .collect::<HashSet<_>>();
11736 if !languages_affected.is_empty() {
11737 self.refresh_inlay_hints(
11738 InlayHintRefreshReason::BufferEdited(languages_affected),
11739 cx,
11740 );
11741 }
11742 }
11743 }
11744
11745 let Some(project) = &self.project else { return };
11746 let telemetry = project.read(cx).client().telemetry().clone();
11747 refresh_linked_ranges(self, cx);
11748 telemetry.log_edit_event("editor");
11749 }
11750 multi_buffer::Event::ExcerptsAdded {
11751 buffer,
11752 predecessor,
11753 excerpts,
11754 } => {
11755 self.tasks_update_task = Some(self.refresh_runnables(cx));
11756 cx.emit(EditorEvent::ExcerptsAdded {
11757 buffer: buffer.clone(),
11758 predecessor: *predecessor,
11759 excerpts: excerpts.clone(),
11760 });
11761 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
11762 }
11763 multi_buffer::Event::ExcerptsRemoved { ids } => {
11764 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
11765 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
11766 }
11767 multi_buffer::Event::ExcerptsEdited { ids } => {
11768 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
11769 }
11770 multi_buffer::Event::ExcerptsExpanded { ids } => {
11771 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
11772 }
11773 multi_buffer::Event::Reparsed(buffer_id) => {
11774 self.tasks_update_task = Some(self.refresh_runnables(cx));
11775
11776 cx.emit(EditorEvent::Reparsed(*buffer_id));
11777 }
11778 multi_buffer::Event::LanguageChanged(buffer_id) => {
11779 linked_editing_ranges::refresh_linked_ranges(self, cx);
11780 cx.emit(EditorEvent::Reparsed(*buffer_id));
11781 cx.notify();
11782 }
11783 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
11784 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
11785 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
11786 cx.emit(EditorEvent::TitleChanged)
11787 }
11788 multi_buffer::Event::DiffBaseChanged => {
11789 self.scrollbar_marker_state.dirty = true;
11790 cx.emit(EditorEvent::DiffBaseChanged);
11791 cx.notify();
11792 }
11793 multi_buffer::Event::DiffUpdated { buffer } => {
11794 self.sync_expanded_diff_hunks(buffer.clone(), cx);
11795 cx.notify();
11796 }
11797 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
11798 multi_buffer::Event::DiagnosticsUpdated => {
11799 self.refresh_active_diagnostics(cx);
11800 self.scrollbar_marker_state.dirty = true;
11801 cx.notify();
11802 }
11803 _ => {}
11804 };
11805 }
11806
11807 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
11808 cx.notify();
11809 }
11810
11811 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
11812 self.tasks_update_task = Some(self.refresh_runnables(cx));
11813 self.refresh_inline_completion(true, false, cx);
11814 self.refresh_inlay_hints(
11815 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
11816 self.selections.newest_anchor().head(),
11817 &self.buffer.read(cx).snapshot(cx),
11818 cx,
11819 )),
11820 cx,
11821 );
11822 let editor_settings = EditorSettings::get_global(cx);
11823 self.cursor_shape = editor_settings.cursor_shape;
11824 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
11825 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
11826
11827 let project_settings = ProjectSettings::get_global(cx);
11828 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
11829
11830 if self.mode == EditorMode::Full {
11831 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
11832 if self.git_blame_inline_enabled != inline_blame_enabled {
11833 self.toggle_git_blame_inline_internal(false, cx);
11834 }
11835 }
11836
11837 cx.notify();
11838 }
11839
11840 pub fn set_searchable(&mut self, searchable: bool) {
11841 self.searchable = searchable;
11842 }
11843
11844 pub fn searchable(&self) -> bool {
11845 self.searchable
11846 }
11847
11848 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
11849 self.open_excerpts_common(true, cx)
11850 }
11851
11852 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
11853 self.open_excerpts_common(false, cx)
11854 }
11855
11856 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
11857 let buffer = self.buffer.read(cx);
11858 if buffer.is_singleton() {
11859 cx.propagate();
11860 return;
11861 }
11862
11863 let Some(workspace) = self.workspace() else {
11864 cx.propagate();
11865 return;
11866 };
11867
11868 let mut new_selections_by_buffer = HashMap::default();
11869 for selection in self.selections.all::<usize>(cx) {
11870 for (buffer, mut range, _) in
11871 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
11872 {
11873 if selection.reversed {
11874 mem::swap(&mut range.start, &mut range.end);
11875 }
11876 new_selections_by_buffer
11877 .entry(buffer)
11878 .or_insert(Vec::new())
11879 .push(range)
11880 }
11881 }
11882
11883 // We defer the pane interaction because we ourselves are a workspace item
11884 // and activating a new item causes the pane to call a method on us reentrantly,
11885 // which panics if we're on the stack.
11886 cx.window_context().defer(move |cx| {
11887 workspace.update(cx, |workspace, cx| {
11888 let pane = if split {
11889 workspace.adjacent_pane(cx)
11890 } else {
11891 workspace.active_pane().clone()
11892 };
11893
11894 for (buffer, ranges) in new_selections_by_buffer {
11895 let editor =
11896 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
11897 editor.update(cx, |editor, cx| {
11898 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
11899 s.select_ranges(ranges);
11900 });
11901 });
11902 }
11903 })
11904 });
11905 }
11906
11907 fn jump(
11908 &mut self,
11909 path: ProjectPath,
11910 position: Point,
11911 anchor: language::Anchor,
11912 offset_from_top: u32,
11913 cx: &mut ViewContext<Self>,
11914 ) {
11915 let workspace = self.workspace();
11916 cx.spawn(|_, mut cx| async move {
11917 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
11918 let editor = workspace.update(&mut cx, |workspace, cx| {
11919 // Reset the preview item id before opening the new item
11920 workspace.active_pane().update(cx, |pane, cx| {
11921 pane.set_preview_item_id(None, cx);
11922 });
11923 workspace.open_path_preview(path, None, true, true, cx)
11924 })?;
11925 let editor = editor
11926 .await?
11927 .downcast::<Editor>()
11928 .ok_or_else(|| anyhow!("opened item was not an editor"))?
11929 .downgrade();
11930 editor.update(&mut cx, |editor, cx| {
11931 let buffer = editor
11932 .buffer()
11933 .read(cx)
11934 .as_singleton()
11935 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
11936 let buffer = buffer.read(cx);
11937 let cursor = if buffer.can_resolve(&anchor) {
11938 language::ToPoint::to_point(&anchor, buffer)
11939 } else {
11940 buffer.clip_point(position, Bias::Left)
11941 };
11942
11943 let nav_history = editor.nav_history.take();
11944 editor.change_selections(
11945 Some(Autoscroll::top_relative(offset_from_top as usize)),
11946 cx,
11947 |s| {
11948 s.select_ranges([cursor..cursor]);
11949 },
11950 );
11951 editor.nav_history = nav_history;
11952
11953 anyhow::Ok(())
11954 })??;
11955
11956 anyhow::Ok(())
11957 })
11958 .detach_and_log_err(cx);
11959 }
11960
11961 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
11962 let snapshot = self.buffer.read(cx).read(cx);
11963 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
11964 Some(
11965 ranges
11966 .iter()
11967 .map(move |range| {
11968 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
11969 })
11970 .collect(),
11971 )
11972 }
11973
11974 fn selection_replacement_ranges(
11975 &self,
11976 range: Range<OffsetUtf16>,
11977 cx: &AppContext,
11978 ) -> Vec<Range<OffsetUtf16>> {
11979 let selections = self.selections.all::<OffsetUtf16>(cx);
11980 let newest_selection = selections
11981 .iter()
11982 .max_by_key(|selection| selection.id)
11983 .unwrap();
11984 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
11985 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
11986 let snapshot = self.buffer.read(cx).read(cx);
11987 selections
11988 .into_iter()
11989 .map(|mut selection| {
11990 selection.start.0 =
11991 (selection.start.0 as isize).saturating_add(start_delta) as usize;
11992 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
11993 snapshot.clip_offset_utf16(selection.start, Bias::Left)
11994 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
11995 })
11996 .collect()
11997 }
11998
11999 fn report_editor_event(
12000 &self,
12001 operation: &'static str,
12002 file_extension: Option<String>,
12003 cx: &AppContext,
12004 ) {
12005 if cfg!(any(test, feature = "test-support")) {
12006 return;
12007 }
12008
12009 let Some(project) = &self.project else { return };
12010
12011 // If None, we are in a file without an extension
12012 let file = self
12013 .buffer
12014 .read(cx)
12015 .as_singleton()
12016 .and_then(|b| b.read(cx).file());
12017 let file_extension = file_extension.or(file
12018 .as_ref()
12019 .and_then(|file| Path::new(file.file_name(cx)).extension())
12020 .and_then(|e| e.to_str())
12021 .map(|a| a.to_string()));
12022
12023 let vim_mode = cx
12024 .global::<SettingsStore>()
12025 .raw_user_settings()
12026 .get("vim_mode")
12027 == Some(&serde_json::Value::Bool(true));
12028
12029 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12030 == language::language_settings::InlineCompletionProvider::Copilot;
12031 let copilot_enabled_for_language = self
12032 .buffer
12033 .read(cx)
12034 .settings_at(0, cx)
12035 .show_inline_completions;
12036
12037 let telemetry = project.read(cx).client().telemetry().clone();
12038 telemetry.report_editor_event(
12039 file_extension,
12040 vim_mode,
12041 operation,
12042 copilot_enabled,
12043 copilot_enabled_for_language,
12044 )
12045 }
12046
12047 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12048 /// with each line being an array of {text, highlight} objects.
12049 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12050 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12051 return;
12052 };
12053
12054 #[derive(Serialize)]
12055 struct Chunk<'a> {
12056 text: String,
12057 highlight: Option<&'a str>,
12058 }
12059
12060 let snapshot = buffer.read(cx).snapshot();
12061 let range = self
12062 .selected_text_range(false, cx)
12063 .and_then(|selection| {
12064 if selection.range.is_empty() {
12065 None
12066 } else {
12067 Some(selection.range)
12068 }
12069 })
12070 .unwrap_or_else(|| 0..snapshot.len());
12071
12072 let chunks = snapshot.chunks(range, true);
12073 let mut lines = Vec::new();
12074 let mut line: VecDeque<Chunk> = VecDeque::new();
12075
12076 let Some(style) = self.style.as_ref() else {
12077 return;
12078 };
12079
12080 for chunk in chunks {
12081 let highlight = chunk
12082 .syntax_highlight_id
12083 .and_then(|id| id.name(&style.syntax));
12084 let mut chunk_lines = chunk.text.split('\n').peekable();
12085 while let Some(text) = chunk_lines.next() {
12086 let mut merged_with_last_token = false;
12087 if let Some(last_token) = line.back_mut() {
12088 if last_token.highlight == highlight {
12089 last_token.text.push_str(text);
12090 merged_with_last_token = true;
12091 }
12092 }
12093
12094 if !merged_with_last_token {
12095 line.push_back(Chunk {
12096 text: text.into(),
12097 highlight,
12098 });
12099 }
12100
12101 if chunk_lines.peek().is_some() {
12102 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12103 line.pop_front();
12104 }
12105 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12106 line.pop_back();
12107 }
12108
12109 lines.push(mem::take(&mut line));
12110 }
12111 }
12112 }
12113
12114 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12115 return;
12116 };
12117 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12118 }
12119
12120 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12121 &self.inlay_hint_cache
12122 }
12123
12124 pub fn replay_insert_event(
12125 &mut self,
12126 text: &str,
12127 relative_utf16_range: Option<Range<isize>>,
12128 cx: &mut ViewContext<Self>,
12129 ) {
12130 if !self.input_enabled {
12131 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12132 return;
12133 }
12134 if let Some(relative_utf16_range) = relative_utf16_range {
12135 let selections = self.selections.all::<OffsetUtf16>(cx);
12136 self.change_selections(None, cx, |s| {
12137 let new_ranges = selections.into_iter().map(|range| {
12138 let start = OffsetUtf16(
12139 range
12140 .head()
12141 .0
12142 .saturating_add_signed(relative_utf16_range.start),
12143 );
12144 let end = OffsetUtf16(
12145 range
12146 .head()
12147 .0
12148 .saturating_add_signed(relative_utf16_range.end),
12149 );
12150 start..end
12151 });
12152 s.select_ranges(new_ranges);
12153 });
12154 }
12155
12156 self.handle_input(text, cx);
12157 }
12158
12159 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12160 let Some(project) = self.project.as_ref() else {
12161 return false;
12162 };
12163 let project = project.read(cx);
12164
12165 let mut supports = false;
12166 self.buffer().read(cx).for_each_buffer(|buffer| {
12167 if !supports {
12168 supports = project
12169 .language_servers_for_buffer(buffer.read(cx), cx)
12170 .any(
12171 |(_, server)| match server.capabilities().inlay_hint_provider {
12172 Some(lsp::OneOf::Left(enabled)) => enabled,
12173 Some(lsp::OneOf::Right(_)) => true,
12174 None => false,
12175 },
12176 )
12177 }
12178 });
12179 supports
12180 }
12181
12182 pub fn focus(&self, cx: &mut WindowContext) {
12183 cx.focus(&self.focus_handle)
12184 }
12185
12186 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12187 self.focus_handle.is_focused(cx)
12188 }
12189
12190 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12191 cx.emit(EditorEvent::Focused);
12192
12193 if let Some(descendant) = self
12194 .last_focused_descendant
12195 .take()
12196 .and_then(|descendant| descendant.upgrade())
12197 {
12198 cx.focus(&descendant);
12199 } else {
12200 if let Some(blame) = self.blame.as_ref() {
12201 blame.update(cx, GitBlame::focus)
12202 }
12203
12204 self.blink_manager.update(cx, BlinkManager::enable);
12205 self.show_cursor_names(cx);
12206 self.buffer.update(cx, |buffer, cx| {
12207 buffer.finalize_last_transaction(cx);
12208 if self.leader_peer_id.is_none() {
12209 buffer.set_active_selections(
12210 &self.selections.disjoint_anchors(),
12211 self.selections.line_mode,
12212 self.cursor_shape,
12213 cx,
12214 );
12215 }
12216 });
12217 }
12218 }
12219
12220 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12221 cx.emit(EditorEvent::FocusedIn)
12222 }
12223
12224 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12225 if event.blurred != self.focus_handle {
12226 self.last_focused_descendant = Some(event.blurred);
12227 }
12228 }
12229
12230 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12231 self.blink_manager.update(cx, BlinkManager::disable);
12232 self.buffer
12233 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12234
12235 if let Some(blame) = self.blame.as_ref() {
12236 blame.update(cx, GitBlame::blur)
12237 }
12238 if !self.hover_state.focused(cx) {
12239 hide_hover(self, cx);
12240 }
12241
12242 self.hide_context_menu(cx);
12243 cx.emit(EditorEvent::Blurred);
12244 cx.notify();
12245 }
12246
12247 pub fn register_action<A: Action>(
12248 &mut self,
12249 listener: impl Fn(&A, &mut WindowContext) + 'static,
12250 ) -> Subscription {
12251 let id = self.next_editor_action_id.post_inc();
12252 let listener = Arc::new(listener);
12253 self.editor_actions.borrow_mut().insert(
12254 id,
12255 Box::new(move |cx| {
12256 let cx = cx.window_context();
12257 let listener = listener.clone();
12258 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12259 let action = action.downcast_ref().unwrap();
12260 if phase == DispatchPhase::Bubble {
12261 listener(action, cx)
12262 }
12263 })
12264 }),
12265 );
12266
12267 let editor_actions = self.editor_actions.clone();
12268 Subscription::new(move || {
12269 editor_actions.borrow_mut().remove(&id);
12270 })
12271 }
12272
12273 pub fn file_header_size(&self) -> u32 {
12274 self.file_header_size
12275 }
12276
12277 pub fn revert(
12278 &mut self,
12279 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12280 cx: &mut ViewContext<Self>,
12281 ) {
12282 self.buffer().update(cx, |multi_buffer, cx| {
12283 for (buffer_id, changes) in revert_changes {
12284 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12285 buffer.update(cx, |buffer, cx| {
12286 buffer.edit(
12287 changes.into_iter().map(|(range, text)| {
12288 (range, text.to_string().map(Arc::<str>::from))
12289 }),
12290 None,
12291 cx,
12292 );
12293 });
12294 }
12295 }
12296 });
12297 self.change_selections(None, cx, |selections| selections.refresh());
12298 }
12299
12300 pub fn to_pixel_point(
12301 &mut self,
12302 source: multi_buffer::Anchor,
12303 editor_snapshot: &EditorSnapshot,
12304 cx: &mut ViewContext<Self>,
12305 ) -> Option<gpui::Point<Pixels>> {
12306 let source_point = source.to_display_point(editor_snapshot);
12307 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12308 }
12309
12310 pub fn display_to_pixel_point(
12311 &mut self,
12312 source: DisplayPoint,
12313 editor_snapshot: &EditorSnapshot,
12314 cx: &mut ViewContext<Self>,
12315 ) -> Option<gpui::Point<Pixels>> {
12316 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12317 let text_layout_details = self.text_layout_details(cx);
12318 let scroll_top = text_layout_details
12319 .scroll_anchor
12320 .scroll_position(editor_snapshot)
12321 .y;
12322
12323 if source.row().as_f32() < scroll_top.floor() {
12324 return None;
12325 }
12326 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12327 let source_y = line_height * (source.row().as_f32() - scroll_top);
12328 Some(gpui::Point::new(source_x, source_y))
12329 }
12330
12331 fn gutter_bounds(&self) -> Option<Bounds<Pixels>> {
12332 let bounds = self.last_bounds?;
12333 Some(element::gutter_bounds(bounds, self.gutter_dimensions))
12334 }
12335
12336 pub fn has_active_completions_menu(&self) -> bool {
12337 self.context_menu.read().as_ref().map_or(false, |menu| {
12338 menu.visible() && matches!(menu, ContextMenu::Completions(_))
12339 })
12340 }
12341
12342 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12343 self.addons
12344 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
12345 }
12346
12347 pub fn unregister_addon<T: Addon>(&mut self) {
12348 self.addons.remove(&std::any::TypeId::of::<T>());
12349 }
12350
12351 pub fn addon<T: Addon>(&self) -> Option<&T> {
12352 let type_id = std::any::TypeId::of::<T>();
12353 self.addons
12354 .get(&type_id)
12355 .and_then(|item| item.to_any().downcast_ref::<T>())
12356 }
12357}
12358
12359fn hunks_for_selections(
12360 multi_buffer_snapshot: &MultiBufferSnapshot,
12361 selections: &[Selection<Anchor>],
12362) -> Vec<DiffHunk<MultiBufferRow>> {
12363 let buffer_rows_for_selections = selections.iter().map(|selection| {
12364 let head = selection.head();
12365 let tail = selection.tail();
12366 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
12367 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
12368 if start > end {
12369 end..start
12370 } else {
12371 start..end
12372 }
12373 });
12374
12375 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
12376}
12377
12378pub fn hunks_for_rows(
12379 rows: impl Iterator<Item = Range<MultiBufferRow>>,
12380 multi_buffer_snapshot: &MultiBufferSnapshot,
12381) -> Vec<DiffHunk<MultiBufferRow>> {
12382 let mut hunks = Vec::new();
12383 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
12384 HashMap::default();
12385 for selected_multi_buffer_rows in rows {
12386 let query_rows =
12387 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
12388 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
12389 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
12390 // when the caret is just above or just below the deleted hunk.
12391 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
12392 let related_to_selection = if allow_adjacent {
12393 hunk.associated_range.overlaps(&query_rows)
12394 || hunk.associated_range.start == query_rows.end
12395 || hunk.associated_range.end == query_rows.start
12396 } else {
12397 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
12398 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
12399 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
12400 || selected_multi_buffer_rows.end == hunk.associated_range.start
12401 };
12402 if related_to_selection {
12403 if !processed_buffer_rows
12404 .entry(hunk.buffer_id)
12405 .or_default()
12406 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
12407 {
12408 continue;
12409 }
12410 hunks.push(hunk);
12411 }
12412 }
12413 }
12414
12415 hunks
12416}
12417
12418pub trait CollaborationHub {
12419 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
12420 fn user_participant_indices<'a>(
12421 &self,
12422 cx: &'a AppContext,
12423 ) -> &'a HashMap<u64, ParticipantIndex>;
12424 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
12425}
12426
12427impl CollaborationHub for Model<Project> {
12428 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
12429 self.read(cx).collaborators()
12430 }
12431
12432 fn user_participant_indices<'a>(
12433 &self,
12434 cx: &'a AppContext,
12435 ) -> &'a HashMap<u64, ParticipantIndex> {
12436 self.read(cx).user_store().read(cx).participant_indices()
12437 }
12438
12439 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
12440 let this = self.read(cx);
12441 let user_ids = this.collaborators().values().map(|c| c.user_id);
12442 this.user_store().read_with(cx, |user_store, cx| {
12443 user_store.participant_names(user_ids, cx)
12444 })
12445 }
12446}
12447
12448pub trait CompletionProvider {
12449 fn completions(
12450 &self,
12451 buffer: &Model<Buffer>,
12452 buffer_position: text::Anchor,
12453 trigger: CompletionContext,
12454 cx: &mut ViewContext<Editor>,
12455 ) -> Task<Result<Vec<Completion>>>;
12456
12457 fn resolve_completions(
12458 &self,
12459 buffer: Model<Buffer>,
12460 completion_indices: Vec<usize>,
12461 completions: Arc<RwLock<Box<[Completion]>>>,
12462 cx: &mut ViewContext<Editor>,
12463 ) -> Task<Result<bool>>;
12464
12465 fn apply_additional_edits_for_completion(
12466 &self,
12467 buffer: Model<Buffer>,
12468 completion: Completion,
12469 push_to_history: bool,
12470 cx: &mut ViewContext<Editor>,
12471 ) -> Task<Result<Option<language::Transaction>>>;
12472
12473 fn is_completion_trigger(
12474 &self,
12475 buffer: &Model<Buffer>,
12476 position: language::Anchor,
12477 text: &str,
12478 trigger_in_words: bool,
12479 cx: &mut ViewContext<Editor>,
12480 ) -> bool;
12481
12482 fn sort_completions(&self) -> bool {
12483 true
12484 }
12485}
12486
12487fn snippet_completions(
12488 project: &Project,
12489 buffer: &Model<Buffer>,
12490 buffer_position: text::Anchor,
12491 cx: &mut AppContext,
12492) -> Vec<Completion> {
12493 let language = buffer.read(cx).language_at(buffer_position);
12494 let language_name = language.as_ref().map(|language| language.lsp_id());
12495 let snippet_store = project.snippets().read(cx);
12496 let snippets = snippet_store.snippets_for(language_name, cx);
12497
12498 if snippets.is_empty() {
12499 return vec![];
12500 }
12501 let snapshot = buffer.read(cx).text_snapshot();
12502 let chunks = snapshot.reversed_chunks_in_range(text::Anchor::MIN..buffer_position);
12503
12504 let mut lines = chunks.lines();
12505 let Some(line_at) = lines.next().filter(|line| !line.is_empty()) else {
12506 return vec![];
12507 };
12508
12509 let scope = language.map(|language| language.default_scope());
12510 let classifier = CharClassifier::new(scope).for_completion(true);
12511 let mut last_word = line_at
12512 .chars()
12513 .rev()
12514 .take_while(|c| classifier.is_word(*c))
12515 .collect::<String>();
12516 last_word = last_word.chars().rev().collect();
12517 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
12518 let to_lsp = |point: &text::Anchor| {
12519 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
12520 point_to_lsp(end)
12521 };
12522 let lsp_end = to_lsp(&buffer_position);
12523 snippets
12524 .into_iter()
12525 .filter_map(|snippet| {
12526 let matching_prefix = snippet
12527 .prefix
12528 .iter()
12529 .find(|prefix| prefix.starts_with(&last_word))?;
12530 let start = as_offset - last_word.len();
12531 let start = snapshot.anchor_before(start);
12532 let range = start..buffer_position;
12533 let lsp_start = to_lsp(&start);
12534 let lsp_range = lsp::Range {
12535 start: lsp_start,
12536 end: lsp_end,
12537 };
12538 Some(Completion {
12539 old_range: range,
12540 new_text: snippet.body.clone(),
12541 label: CodeLabel {
12542 text: matching_prefix.clone(),
12543 runs: vec![],
12544 filter_range: 0..matching_prefix.len(),
12545 },
12546 server_id: LanguageServerId(usize::MAX),
12547 documentation: snippet.description.clone().map(Documentation::SingleLine),
12548 lsp_completion: lsp::CompletionItem {
12549 label: snippet.prefix.first().unwrap().clone(),
12550 kind: Some(CompletionItemKind::SNIPPET),
12551 label_details: snippet.description.as_ref().map(|description| {
12552 lsp::CompletionItemLabelDetails {
12553 detail: Some(description.clone()),
12554 description: None,
12555 }
12556 }),
12557 insert_text_format: Some(InsertTextFormat::SNIPPET),
12558 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
12559 lsp::InsertReplaceEdit {
12560 new_text: snippet.body.clone(),
12561 insert: lsp_range,
12562 replace: lsp_range,
12563 },
12564 )),
12565 filter_text: Some(snippet.body.clone()),
12566 sort_text: Some(char::MAX.to_string()),
12567 ..Default::default()
12568 },
12569 confirm: None,
12570 })
12571 })
12572 .collect()
12573}
12574
12575impl CompletionProvider for Model<Project> {
12576 fn completions(
12577 &self,
12578 buffer: &Model<Buffer>,
12579 buffer_position: text::Anchor,
12580 options: CompletionContext,
12581 cx: &mut ViewContext<Editor>,
12582 ) -> Task<Result<Vec<Completion>>> {
12583 self.update(cx, |project, cx| {
12584 let snippets = snippet_completions(project, buffer, buffer_position, cx);
12585 let project_completions = project.completions(buffer, buffer_position, options, cx);
12586 cx.background_executor().spawn(async move {
12587 let mut completions = project_completions.await?;
12588 //let snippets = snippets.into_iter().;
12589 completions.extend(snippets);
12590 Ok(completions)
12591 })
12592 })
12593 }
12594
12595 fn resolve_completions(
12596 &self,
12597 buffer: Model<Buffer>,
12598 completion_indices: Vec<usize>,
12599 completions: Arc<RwLock<Box<[Completion]>>>,
12600 cx: &mut ViewContext<Editor>,
12601 ) -> Task<Result<bool>> {
12602 self.update(cx, |project, cx| {
12603 project.resolve_completions(buffer, completion_indices, completions, cx)
12604 })
12605 }
12606
12607 fn apply_additional_edits_for_completion(
12608 &self,
12609 buffer: Model<Buffer>,
12610 completion: Completion,
12611 push_to_history: bool,
12612 cx: &mut ViewContext<Editor>,
12613 ) -> Task<Result<Option<language::Transaction>>> {
12614 self.update(cx, |project, cx| {
12615 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
12616 })
12617 }
12618
12619 fn is_completion_trigger(
12620 &self,
12621 buffer: &Model<Buffer>,
12622 position: language::Anchor,
12623 text: &str,
12624 trigger_in_words: bool,
12625 cx: &mut ViewContext<Editor>,
12626 ) -> bool {
12627 if !EditorSettings::get_global(cx).show_completions_on_input {
12628 return false;
12629 }
12630
12631 let mut chars = text.chars();
12632 let char = if let Some(char) = chars.next() {
12633 char
12634 } else {
12635 return false;
12636 };
12637 if chars.next().is_some() {
12638 return false;
12639 }
12640
12641 let buffer = buffer.read(cx);
12642 let classifier = buffer
12643 .snapshot()
12644 .char_classifier_at(position)
12645 .for_completion(true);
12646 if trigger_in_words && classifier.is_word(char) {
12647 return true;
12648 }
12649
12650 buffer
12651 .completion_triggers()
12652 .iter()
12653 .any(|string| string == text)
12654 }
12655}
12656
12657fn inlay_hint_settings(
12658 location: Anchor,
12659 snapshot: &MultiBufferSnapshot,
12660 cx: &mut ViewContext<'_, Editor>,
12661) -> InlayHintSettings {
12662 let file = snapshot.file_at(location);
12663 let language = snapshot.language_at(location);
12664 let settings = all_language_settings(file, cx);
12665 settings
12666 .language(language.map(|l| l.name()).as_ref())
12667 .inlay_hints
12668}
12669
12670fn consume_contiguous_rows(
12671 contiguous_row_selections: &mut Vec<Selection<Point>>,
12672 selection: &Selection<Point>,
12673 display_map: &DisplaySnapshot,
12674 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
12675) -> (MultiBufferRow, MultiBufferRow) {
12676 contiguous_row_selections.push(selection.clone());
12677 let start_row = MultiBufferRow(selection.start.row);
12678 let mut end_row = ending_row(selection, display_map);
12679
12680 while let Some(next_selection) = selections.peek() {
12681 if next_selection.start.row <= end_row.0 {
12682 end_row = ending_row(next_selection, display_map);
12683 contiguous_row_selections.push(selections.next().unwrap().clone());
12684 } else {
12685 break;
12686 }
12687 }
12688 (start_row, end_row)
12689}
12690
12691fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
12692 if next_selection.end.column > 0 || next_selection.is_empty() {
12693 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
12694 } else {
12695 MultiBufferRow(next_selection.end.row)
12696 }
12697}
12698
12699impl EditorSnapshot {
12700 pub fn remote_selections_in_range<'a>(
12701 &'a self,
12702 range: &'a Range<Anchor>,
12703 collaboration_hub: &dyn CollaborationHub,
12704 cx: &'a AppContext,
12705 ) -> impl 'a + Iterator<Item = RemoteSelection> {
12706 let participant_names = collaboration_hub.user_names(cx);
12707 let participant_indices = collaboration_hub.user_participant_indices(cx);
12708 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
12709 let collaborators_by_replica_id = collaborators_by_peer_id
12710 .iter()
12711 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
12712 .collect::<HashMap<_, _>>();
12713 self.buffer_snapshot
12714 .selections_in_range(range, false)
12715 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
12716 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
12717 let participant_index = participant_indices.get(&collaborator.user_id).copied();
12718 let user_name = participant_names.get(&collaborator.user_id).cloned();
12719 Some(RemoteSelection {
12720 replica_id,
12721 selection,
12722 cursor_shape,
12723 line_mode,
12724 participant_index,
12725 peer_id: collaborator.peer_id,
12726 user_name,
12727 })
12728 })
12729 }
12730
12731 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
12732 self.display_snapshot.buffer_snapshot.language_at(position)
12733 }
12734
12735 pub fn is_focused(&self) -> bool {
12736 self.is_focused
12737 }
12738
12739 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
12740 self.placeholder_text.as_ref()
12741 }
12742
12743 pub fn scroll_position(&self) -> gpui::Point<f32> {
12744 self.scroll_anchor.scroll_position(&self.display_snapshot)
12745 }
12746
12747 fn gutter_dimensions(
12748 &self,
12749 font_id: FontId,
12750 font_size: Pixels,
12751 em_width: Pixels,
12752 max_line_number_width: Pixels,
12753 cx: &AppContext,
12754 ) -> GutterDimensions {
12755 if !self.show_gutter {
12756 return GutterDimensions::default();
12757 }
12758 let descent = cx.text_system().descent(font_id, font_size);
12759
12760 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
12761 matches!(
12762 ProjectSettings::get_global(cx).git.git_gutter,
12763 Some(GitGutterSetting::TrackedFiles)
12764 )
12765 });
12766 let gutter_settings = EditorSettings::get_global(cx).gutter;
12767 let show_line_numbers = self
12768 .show_line_numbers
12769 .unwrap_or(gutter_settings.line_numbers);
12770 let line_gutter_width = if show_line_numbers {
12771 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
12772 let min_width_for_number_on_gutter = em_width * 4.0;
12773 max_line_number_width.max(min_width_for_number_on_gutter)
12774 } else {
12775 0.0.into()
12776 };
12777
12778 let show_code_actions = self
12779 .show_code_actions
12780 .unwrap_or(gutter_settings.code_actions);
12781
12782 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
12783
12784 let git_blame_entries_width = self
12785 .render_git_blame_gutter
12786 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
12787
12788 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
12789 left_padding += if show_code_actions || show_runnables {
12790 em_width * 3.0
12791 } else if show_git_gutter && show_line_numbers {
12792 em_width * 2.0
12793 } else if show_git_gutter || show_line_numbers {
12794 em_width
12795 } else {
12796 px(0.)
12797 };
12798
12799 let right_padding = if gutter_settings.folds && show_line_numbers {
12800 em_width * 4.0
12801 } else if gutter_settings.folds {
12802 em_width * 3.0
12803 } else if show_line_numbers {
12804 em_width
12805 } else {
12806 px(0.)
12807 };
12808
12809 GutterDimensions {
12810 left_padding,
12811 right_padding,
12812 width: line_gutter_width + left_padding + right_padding,
12813 margin: -descent,
12814 git_blame_entries_width,
12815 }
12816 }
12817
12818 pub fn render_fold_toggle(
12819 &self,
12820 buffer_row: MultiBufferRow,
12821 row_contains_cursor: bool,
12822 editor: View<Editor>,
12823 cx: &mut WindowContext,
12824 ) -> Option<AnyElement> {
12825 let folded = self.is_line_folded(buffer_row);
12826
12827 if let Some(crease) = self
12828 .crease_snapshot
12829 .query_row(buffer_row, &self.buffer_snapshot)
12830 {
12831 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
12832 if folded {
12833 editor.update(cx, |editor, cx| {
12834 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
12835 });
12836 } else {
12837 editor.update(cx, |editor, cx| {
12838 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
12839 });
12840 }
12841 });
12842
12843 Some((crease.render_toggle)(
12844 buffer_row,
12845 folded,
12846 toggle_callback,
12847 cx,
12848 ))
12849 } else if folded
12850 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
12851 {
12852 Some(
12853 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
12854 .selected(folded)
12855 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
12856 if folded {
12857 this.unfold_at(&UnfoldAt { buffer_row }, cx);
12858 } else {
12859 this.fold_at(&FoldAt { buffer_row }, cx);
12860 }
12861 }))
12862 .into_any_element(),
12863 )
12864 } else {
12865 None
12866 }
12867 }
12868
12869 pub fn render_crease_trailer(
12870 &self,
12871 buffer_row: MultiBufferRow,
12872 cx: &mut WindowContext,
12873 ) -> Option<AnyElement> {
12874 let folded = self.is_line_folded(buffer_row);
12875 let crease = self
12876 .crease_snapshot
12877 .query_row(buffer_row, &self.buffer_snapshot)?;
12878 Some((crease.render_trailer)(buffer_row, folded, cx))
12879 }
12880}
12881
12882impl Deref for EditorSnapshot {
12883 type Target = DisplaySnapshot;
12884
12885 fn deref(&self) -> &Self::Target {
12886 &self.display_snapshot
12887 }
12888}
12889
12890#[derive(Clone, Debug, PartialEq, Eq)]
12891pub enum EditorEvent {
12892 InputIgnored {
12893 text: Arc<str>,
12894 },
12895 InputHandled {
12896 utf16_range_to_replace: Option<Range<isize>>,
12897 text: Arc<str>,
12898 },
12899 ExcerptsAdded {
12900 buffer: Model<Buffer>,
12901 predecessor: ExcerptId,
12902 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
12903 },
12904 ExcerptsRemoved {
12905 ids: Vec<ExcerptId>,
12906 },
12907 ExcerptsEdited {
12908 ids: Vec<ExcerptId>,
12909 },
12910 ExcerptsExpanded {
12911 ids: Vec<ExcerptId>,
12912 },
12913 BufferEdited,
12914 Edited {
12915 transaction_id: clock::Lamport,
12916 },
12917 Reparsed(BufferId),
12918 Focused,
12919 FocusedIn,
12920 Blurred,
12921 DirtyChanged,
12922 Saved,
12923 TitleChanged,
12924 DiffBaseChanged,
12925 SelectionsChanged {
12926 local: bool,
12927 },
12928 ScrollPositionChanged {
12929 local: bool,
12930 autoscroll: bool,
12931 },
12932 Closed,
12933 TransactionUndone {
12934 transaction_id: clock::Lamport,
12935 },
12936 TransactionBegun {
12937 transaction_id: clock::Lamport,
12938 },
12939}
12940
12941impl EventEmitter<EditorEvent> for Editor {}
12942
12943impl FocusableView for Editor {
12944 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
12945 self.focus_handle.clone()
12946 }
12947}
12948
12949impl Render for Editor {
12950 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
12951 let settings = ThemeSettings::get_global(cx);
12952
12953 let text_style = match self.mode {
12954 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
12955 color: cx.theme().colors().editor_foreground,
12956 font_family: settings.ui_font.family.clone(),
12957 font_features: settings.ui_font.features.clone(),
12958 font_fallbacks: settings.ui_font.fallbacks.clone(),
12959 font_size: rems(0.875).into(),
12960 font_weight: settings.ui_font.weight,
12961 line_height: relative(settings.buffer_line_height.value()),
12962 ..Default::default()
12963 },
12964 EditorMode::Full => TextStyle {
12965 color: cx.theme().colors().editor_foreground,
12966 font_family: settings.buffer_font.family.clone(),
12967 font_features: settings.buffer_font.features.clone(),
12968 font_fallbacks: settings.buffer_font.fallbacks.clone(),
12969 font_size: settings.buffer_font_size(cx).into(),
12970 font_weight: settings.buffer_font.weight,
12971 line_height: relative(settings.buffer_line_height.value()),
12972 ..Default::default()
12973 },
12974 };
12975
12976 let background = match self.mode {
12977 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
12978 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
12979 EditorMode::Full => cx.theme().colors().editor_background,
12980 };
12981
12982 EditorElement::new(
12983 cx.view(),
12984 EditorStyle {
12985 background,
12986 local_player: cx.theme().players().local(),
12987 text: text_style,
12988 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
12989 syntax: cx.theme().syntax().clone(),
12990 status: cx.theme().status().clone(),
12991 inlay_hints_style: HighlightStyle {
12992 color: Some(cx.theme().status().hint),
12993 ..HighlightStyle::default()
12994 },
12995 suggestions_style: HighlightStyle {
12996 color: Some(cx.theme().status().predictive),
12997 ..HighlightStyle::default()
12998 },
12999 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
13000 },
13001 )
13002 }
13003}
13004
13005impl ViewInputHandler for Editor {
13006 fn text_for_range(
13007 &mut self,
13008 range_utf16: Range<usize>,
13009 cx: &mut ViewContext<Self>,
13010 ) -> Option<String> {
13011 Some(
13012 self.buffer
13013 .read(cx)
13014 .read(cx)
13015 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
13016 .collect(),
13017 )
13018 }
13019
13020 fn selected_text_range(
13021 &mut self,
13022 ignore_disabled_input: bool,
13023 cx: &mut ViewContext<Self>,
13024 ) -> Option<UTF16Selection> {
13025 // Prevent the IME menu from appearing when holding down an alphabetic key
13026 // while input is disabled.
13027 if !ignore_disabled_input && !self.input_enabled {
13028 return None;
13029 }
13030
13031 let selection = self.selections.newest::<OffsetUtf16>(cx);
13032 let range = selection.range();
13033
13034 Some(UTF16Selection {
13035 range: range.start.0..range.end.0,
13036 reversed: selection.reversed,
13037 })
13038 }
13039
13040 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
13041 let snapshot = self.buffer.read(cx).read(cx);
13042 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
13043 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
13044 }
13045
13046 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
13047 self.clear_highlights::<InputComposition>(cx);
13048 self.ime_transaction.take();
13049 }
13050
13051 fn replace_text_in_range(
13052 &mut self,
13053 range_utf16: Option<Range<usize>>,
13054 text: &str,
13055 cx: &mut ViewContext<Self>,
13056 ) {
13057 if !self.input_enabled {
13058 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13059 return;
13060 }
13061
13062 self.transact(cx, |this, cx| {
13063 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
13064 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13065 Some(this.selection_replacement_ranges(range_utf16, cx))
13066 } else {
13067 this.marked_text_ranges(cx)
13068 };
13069
13070 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
13071 let newest_selection_id = this.selections.newest_anchor().id;
13072 this.selections
13073 .all::<OffsetUtf16>(cx)
13074 .iter()
13075 .zip(ranges_to_replace.iter())
13076 .find_map(|(selection, range)| {
13077 if selection.id == newest_selection_id {
13078 Some(
13079 (range.start.0 as isize - selection.head().0 as isize)
13080 ..(range.end.0 as isize - selection.head().0 as isize),
13081 )
13082 } else {
13083 None
13084 }
13085 })
13086 });
13087
13088 cx.emit(EditorEvent::InputHandled {
13089 utf16_range_to_replace: range_to_replace,
13090 text: text.into(),
13091 });
13092
13093 if let Some(new_selected_ranges) = new_selected_ranges {
13094 this.change_selections(None, cx, |selections| {
13095 selections.select_ranges(new_selected_ranges)
13096 });
13097 this.backspace(&Default::default(), cx);
13098 }
13099
13100 this.handle_input(text, cx);
13101 });
13102
13103 if let Some(transaction) = self.ime_transaction {
13104 self.buffer.update(cx, |buffer, cx| {
13105 buffer.group_until_transaction(transaction, cx);
13106 });
13107 }
13108
13109 self.unmark_text(cx);
13110 }
13111
13112 fn replace_and_mark_text_in_range(
13113 &mut self,
13114 range_utf16: Option<Range<usize>>,
13115 text: &str,
13116 new_selected_range_utf16: Option<Range<usize>>,
13117 cx: &mut ViewContext<Self>,
13118 ) {
13119 if !self.input_enabled {
13120 return;
13121 }
13122
13123 let transaction = self.transact(cx, |this, cx| {
13124 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
13125 let snapshot = this.buffer.read(cx).read(cx);
13126 if let Some(relative_range_utf16) = range_utf16.as_ref() {
13127 for marked_range in &mut marked_ranges {
13128 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
13129 marked_range.start.0 += relative_range_utf16.start;
13130 marked_range.start =
13131 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
13132 marked_range.end =
13133 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
13134 }
13135 }
13136 Some(marked_ranges)
13137 } else if let Some(range_utf16) = range_utf16 {
13138 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13139 Some(this.selection_replacement_ranges(range_utf16, cx))
13140 } else {
13141 None
13142 };
13143
13144 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
13145 let newest_selection_id = this.selections.newest_anchor().id;
13146 this.selections
13147 .all::<OffsetUtf16>(cx)
13148 .iter()
13149 .zip(ranges_to_replace.iter())
13150 .find_map(|(selection, range)| {
13151 if selection.id == newest_selection_id {
13152 Some(
13153 (range.start.0 as isize - selection.head().0 as isize)
13154 ..(range.end.0 as isize - selection.head().0 as isize),
13155 )
13156 } else {
13157 None
13158 }
13159 })
13160 });
13161
13162 cx.emit(EditorEvent::InputHandled {
13163 utf16_range_to_replace: range_to_replace,
13164 text: text.into(),
13165 });
13166
13167 if let Some(ranges) = ranges_to_replace {
13168 this.change_selections(None, cx, |s| s.select_ranges(ranges));
13169 }
13170
13171 let marked_ranges = {
13172 let snapshot = this.buffer.read(cx).read(cx);
13173 this.selections
13174 .disjoint_anchors()
13175 .iter()
13176 .map(|selection| {
13177 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
13178 })
13179 .collect::<Vec<_>>()
13180 };
13181
13182 if text.is_empty() {
13183 this.unmark_text(cx);
13184 } else {
13185 this.highlight_text::<InputComposition>(
13186 marked_ranges.clone(),
13187 HighlightStyle {
13188 underline: Some(UnderlineStyle {
13189 thickness: px(1.),
13190 color: None,
13191 wavy: false,
13192 }),
13193 ..Default::default()
13194 },
13195 cx,
13196 );
13197 }
13198
13199 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
13200 let use_autoclose = this.use_autoclose;
13201 let use_auto_surround = this.use_auto_surround;
13202 this.set_use_autoclose(false);
13203 this.set_use_auto_surround(false);
13204 this.handle_input(text, cx);
13205 this.set_use_autoclose(use_autoclose);
13206 this.set_use_auto_surround(use_auto_surround);
13207
13208 if let Some(new_selected_range) = new_selected_range_utf16 {
13209 let snapshot = this.buffer.read(cx).read(cx);
13210 let new_selected_ranges = marked_ranges
13211 .into_iter()
13212 .map(|marked_range| {
13213 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
13214 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
13215 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
13216 snapshot.clip_offset_utf16(new_start, Bias::Left)
13217 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
13218 })
13219 .collect::<Vec<_>>();
13220
13221 drop(snapshot);
13222 this.change_selections(None, cx, |selections| {
13223 selections.select_ranges(new_selected_ranges)
13224 });
13225 }
13226 });
13227
13228 self.ime_transaction = self.ime_transaction.or(transaction);
13229 if let Some(transaction) = self.ime_transaction {
13230 self.buffer.update(cx, |buffer, cx| {
13231 buffer.group_until_transaction(transaction, cx);
13232 });
13233 }
13234
13235 if self.text_highlights::<InputComposition>(cx).is_none() {
13236 self.ime_transaction.take();
13237 }
13238 }
13239
13240 fn bounds_for_range(
13241 &mut self,
13242 range_utf16: Range<usize>,
13243 element_bounds: gpui::Bounds<Pixels>,
13244 cx: &mut ViewContext<Self>,
13245 ) -> Option<gpui::Bounds<Pixels>> {
13246 let text_layout_details = self.text_layout_details(cx);
13247 let style = &text_layout_details.editor_style;
13248 let font_id = cx.text_system().resolve_font(&style.text.font());
13249 let font_size = style.text.font_size.to_pixels(cx.rem_size());
13250 let line_height = style.text.line_height_in_pixels(cx.rem_size());
13251
13252 let em_width = cx
13253 .text_system()
13254 .typographic_bounds(font_id, font_size, 'm')
13255 .unwrap()
13256 .size
13257 .width;
13258
13259 let snapshot = self.snapshot(cx);
13260 let scroll_position = snapshot.scroll_position();
13261 let scroll_left = scroll_position.x * em_width;
13262
13263 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
13264 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
13265 + self.gutter_dimensions.width;
13266 let y = line_height * (start.row().as_f32() - scroll_position.y);
13267
13268 Some(Bounds {
13269 origin: element_bounds.origin + point(x, y),
13270 size: size(em_width, line_height),
13271 })
13272 }
13273}
13274
13275trait SelectionExt {
13276 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
13277 fn spanned_rows(
13278 &self,
13279 include_end_if_at_line_start: bool,
13280 map: &DisplaySnapshot,
13281 ) -> Range<MultiBufferRow>;
13282}
13283
13284impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
13285 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
13286 let start = self
13287 .start
13288 .to_point(&map.buffer_snapshot)
13289 .to_display_point(map);
13290 let end = self
13291 .end
13292 .to_point(&map.buffer_snapshot)
13293 .to_display_point(map);
13294 if self.reversed {
13295 end..start
13296 } else {
13297 start..end
13298 }
13299 }
13300
13301 fn spanned_rows(
13302 &self,
13303 include_end_if_at_line_start: bool,
13304 map: &DisplaySnapshot,
13305 ) -> Range<MultiBufferRow> {
13306 let start = self.start.to_point(&map.buffer_snapshot);
13307 let mut end = self.end.to_point(&map.buffer_snapshot);
13308 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
13309 end.row -= 1;
13310 }
13311
13312 let buffer_start = map.prev_line_boundary(start).0;
13313 let buffer_end = map.next_line_boundary(end).0;
13314 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
13315 }
13316}
13317
13318impl<T: InvalidationRegion> InvalidationStack<T> {
13319 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
13320 where
13321 S: Clone + ToOffset,
13322 {
13323 while let Some(region) = self.last() {
13324 let all_selections_inside_invalidation_ranges =
13325 if selections.len() == region.ranges().len() {
13326 selections
13327 .iter()
13328 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
13329 .all(|(selection, invalidation_range)| {
13330 let head = selection.head().to_offset(buffer);
13331 invalidation_range.start <= head && invalidation_range.end >= head
13332 })
13333 } else {
13334 false
13335 };
13336
13337 if all_selections_inside_invalidation_ranges {
13338 break;
13339 } else {
13340 self.pop();
13341 }
13342 }
13343 }
13344}
13345
13346impl<T> Default for InvalidationStack<T> {
13347 fn default() -> Self {
13348 Self(Default::default())
13349 }
13350}
13351
13352impl<T> Deref for InvalidationStack<T> {
13353 type Target = Vec<T>;
13354
13355 fn deref(&self) -> &Self::Target {
13356 &self.0
13357 }
13358}
13359
13360impl<T> DerefMut for InvalidationStack<T> {
13361 fn deref_mut(&mut self) -> &mut Self::Target {
13362 &mut self.0
13363 }
13364}
13365
13366impl InvalidationRegion for SnippetState {
13367 fn ranges(&self) -> &[Range<Anchor>] {
13368 &self.ranges[self.active_index]
13369 }
13370}
13371
13372pub fn diagnostic_block_renderer(
13373 diagnostic: Diagnostic,
13374 max_message_rows: Option<u8>,
13375 allow_closing: bool,
13376 _is_valid: bool,
13377) -> RenderBlock {
13378 let (text_without_backticks, code_ranges) =
13379 highlight_diagnostic_message(&diagnostic, max_message_rows);
13380
13381 Box::new(move |cx: &mut BlockContext| {
13382 let group_id: SharedString = cx.block_id.to_string().into();
13383
13384 let mut text_style = cx.text_style().clone();
13385 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
13386 let theme_settings = ThemeSettings::get_global(cx);
13387 text_style.font_family = theme_settings.buffer_font.family.clone();
13388 text_style.font_style = theme_settings.buffer_font.style;
13389 text_style.font_features = theme_settings.buffer_font.features.clone();
13390 text_style.font_weight = theme_settings.buffer_font.weight;
13391
13392 let multi_line_diagnostic = diagnostic.message.contains('\n');
13393
13394 let buttons = |diagnostic: &Diagnostic, block_id: BlockId| {
13395 if multi_line_diagnostic {
13396 v_flex()
13397 } else {
13398 h_flex()
13399 }
13400 .when(allow_closing, |div| {
13401 div.children(diagnostic.is_primary.then(|| {
13402 IconButton::new(("close-block", EntityId::from(block_id)), IconName::XCircle)
13403 .icon_color(Color::Muted)
13404 .size(ButtonSize::Compact)
13405 .style(ButtonStyle::Transparent)
13406 .visible_on_hover(group_id.clone())
13407 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
13408 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
13409 }))
13410 })
13411 .child(
13412 IconButton::new(("copy-block", EntityId::from(block_id)), IconName::Copy)
13413 .icon_color(Color::Muted)
13414 .size(ButtonSize::Compact)
13415 .style(ButtonStyle::Transparent)
13416 .visible_on_hover(group_id.clone())
13417 .on_click({
13418 let message = diagnostic.message.clone();
13419 move |_click, cx| {
13420 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
13421 }
13422 })
13423 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
13424 )
13425 };
13426
13427 let icon_size = buttons(&diagnostic, cx.block_id)
13428 .into_any_element()
13429 .layout_as_root(AvailableSpace::min_size(), cx);
13430
13431 h_flex()
13432 .id(cx.block_id)
13433 .group(group_id.clone())
13434 .relative()
13435 .size_full()
13436 .pl(cx.gutter_dimensions.width)
13437 .w(cx.max_width + cx.gutter_dimensions.width)
13438 .child(
13439 div()
13440 .flex()
13441 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
13442 .flex_shrink(),
13443 )
13444 .child(buttons(&diagnostic, cx.block_id))
13445 .child(div().flex().flex_shrink_0().child(
13446 StyledText::new(text_without_backticks.clone()).with_highlights(
13447 &text_style,
13448 code_ranges.iter().map(|range| {
13449 (
13450 range.clone(),
13451 HighlightStyle {
13452 font_weight: Some(FontWeight::BOLD),
13453 ..Default::default()
13454 },
13455 )
13456 }),
13457 ),
13458 ))
13459 .into_any_element()
13460 })
13461}
13462
13463pub fn highlight_diagnostic_message(
13464 diagnostic: &Diagnostic,
13465 mut max_message_rows: Option<u8>,
13466) -> (SharedString, Vec<Range<usize>>) {
13467 let mut text_without_backticks = String::new();
13468 let mut code_ranges = Vec::new();
13469
13470 if let Some(source) = &diagnostic.source {
13471 text_without_backticks.push_str(source);
13472 code_ranges.push(0..source.len());
13473 text_without_backticks.push_str(": ");
13474 }
13475
13476 let mut prev_offset = 0;
13477 let mut in_code_block = false;
13478 let has_row_limit = max_message_rows.is_some();
13479 let mut newline_indices = diagnostic
13480 .message
13481 .match_indices('\n')
13482 .filter(|_| has_row_limit)
13483 .map(|(ix, _)| ix)
13484 .fuse()
13485 .peekable();
13486
13487 for (quote_ix, _) in diagnostic
13488 .message
13489 .match_indices('`')
13490 .chain([(diagnostic.message.len(), "")])
13491 {
13492 let mut first_newline_ix = None;
13493 let mut last_newline_ix = None;
13494 while let Some(newline_ix) = newline_indices.peek() {
13495 if *newline_ix < quote_ix {
13496 if first_newline_ix.is_none() {
13497 first_newline_ix = Some(*newline_ix);
13498 }
13499 last_newline_ix = Some(*newline_ix);
13500
13501 if let Some(rows_left) = &mut max_message_rows {
13502 if *rows_left == 0 {
13503 break;
13504 } else {
13505 *rows_left -= 1;
13506 }
13507 }
13508 let _ = newline_indices.next();
13509 } else {
13510 break;
13511 }
13512 }
13513 let prev_len = text_without_backticks.len();
13514 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
13515 text_without_backticks.push_str(new_text);
13516 if in_code_block {
13517 code_ranges.push(prev_len..text_without_backticks.len());
13518 }
13519 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
13520 in_code_block = !in_code_block;
13521 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
13522 text_without_backticks.push_str("...");
13523 break;
13524 }
13525 }
13526
13527 (text_without_backticks.into(), code_ranges)
13528}
13529
13530fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
13531 match severity {
13532 DiagnosticSeverity::ERROR => colors.error,
13533 DiagnosticSeverity::WARNING => colors.warning,
13534 DiagnosticSeverity::INFORMATION => colors.info,
13535 DiagnosticSeverity::HINT => colors.info,
13536 _ => colors.ignored,
13537 }
13538}
13539
13540pub fn styled_runs_for_code_label<'a>(
13541 label: &'a CodeLabel,
13542 syntax_theme: &'a theme::SyntaxTheme,
13543) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
13544 let fade_out = HighlightStyle {
13545 fade_out: Some(0.35),
13546 ..Default::default()
13547 };
13548
13549 let mut prev_end = label.filter_range.end;
13550 label
13551 .runs
13552 .iter()
13553 .enumerate()
13554 .flat_map(move |(ix, (range, highlight_id))| {
13555 let style = if let Some(style) = highlight_id.style(syntax_theme) {
13556 style
13557 } else {
13558 return Default::default();
13559 };
13560 let mut muted_style = style;
13561 muted_style.highlight(fade_out);
13562
13563 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
13564 if range.start >= label.filter_range.end {
13565 if range.start > prev_end {
13566 runs.push((prev_end..range.start, fade_out));
13567 }
13568 runs.push((range.clone(), muted_style));
13569 } else if range.end <= label.filter_range.end {
13570 runs.push((range.clone(), style));
13571 } else {
13572 runs.push((range.start..label.filter_range.end, style));
13573 runs.push((label.filter_range.end..range.end, muted_style));
13574 }
13575 prev_end = cmp::max(prev_end, range.end);
13576
13577 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
13578 runs.push((prev_end..label.text.len(), fade_out));
13579 }
13580
13581 runs
13582 })
13583}
13584
13585pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
13586 let mut prev_index = 0;
13587 let mut prev_codepoint: Option<char> = None;
13588 text.char_indices()
13589 .chain([(text.len(), '\0')])
13590 .filter_map(move |(index, codepoint)| {
13591 let prev_codepoint = prev_codepoint.replace(codepoint)?;
13592 let is_boundary = index == text.len()
13593 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
13594 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
13595 if is_boundary {
13596 let chunk = &text[prev_index..index];
13597 prev_index = index;
13598 Some(chunk)
13599 } else {
13600 None
13601 }
13602 })
13603}
13604
13605pub trait RangeToAnchorExt: Sized {
13606 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
13607
13608 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
13609 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
13610 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
13611 }
13612}
13613
13614impl<T: ToOffset> RangeToAnchorExt for Range<T> {
13615 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
13616 let start_offset = self.start.to_offset(snapshot);
13617 let end_offset = self.end.to_offset(snapshot);
13618 if start_offset == end_offset {
13619 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
13620 } else {
13621 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
13622 }
13623 }
13624}
13625
13626pub trait RowExt {
13627 fn as_f32(&self) -> f32;
13628
13629 fn next_row(&self) -> Self;
13630
13631 fn previous_row(&self) -> Self;
13632
13633 fn minus(&self, other: Self) -> u32;
13634}
13635
13636impl RowExt for DisplayRow {
13637 fn as_f32(&self) -> f32 {
13638 self.0 as f32
13639 }
13640
13641 fn next_row(&self) -> Self {
13642 Self(self.0 + 1)
13643 }
13644
13645 fn previous_row(&self) -> Self {
13646 Self(self.0.saturating_sub(1))
13647 }
13648
13649 fn minus(&self, other: Self) -> u32 {
13650 self.0 - other.0
13651 }
13652}
13653
13654impl RowExt for MultiBufferRow {
13655 fn as_f32(&self) -> f32 {
13656 self.0 as f32
13657 }
13658
13659 fn next_row(&self) -> Self {
13660 Self(self.0 + 1)
13661 }
13662
13663 fn previous_row(&self) -> Self {
13664 Self(self.0.saturating_sub(1))
13665 }
13666
13667 fn minus(&self, other: Self) -> u32 {
13668 self.0 - other.0
13669 }
13670}
13671
13672trait RowRangeExt {
13673 type Row;
13674
13675 fn len(&self) -> usize;
13676
13677 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
13678}
13679
13680impl RowRangeExt for Range<MultiBufferRow> {
13681 type Row = MultiBufferRow;
13682
13683 fn len(&self) -> usize {
13684 (self.end.0 - self.start.0) as usize
13685 }
13686
13687 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
13688 (self.start.0..self.end.0).map(MultiBufferRow)
13689 }
13690}
13691
13692impl RowRangeExt for Range<DisplayRow> {
13693 type Row = DisplayRow;
13694
13695 fn len(&self) -> usize {
13696 (self.end.0 - self.start.0) as usize
13697 }
13698
13699 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
13700 (self.start.0..self.end.0).map(DisplayRow)
13701 }
13702}
13703
13704fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
13705 if hunk.diff_base_byte_range.is_empty() {
13706 DiffHunkStatus::Added
13707 } else if hunk.associated_range.is_empty() {
13708 DiffHunkStatus::Removed
13709 } else {
13710 DiffHunkStatus::Modified
13711 }
13712}
13713
13714/// If select range has more than one line, we
13715/// just point the cursor to range.start.
13716fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
13717 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
13718 range
13719 } else {
13720 range.start..range.start
13721 }
13722}