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::{CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine};
63pub use editor_settings_controls::*;
64use element::LineWithInvisibles;
65pub use element::{
66 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
67};
68use futures::FutureExt;
69use fuzzy::{StringMatch, StringMatchCandidate};
70use git::blame::GitBlame;
71use git::diff_hunk_to_display;
72use gpui::{
73 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
74 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardEntry,
75 ClipboardItem, Context, DispatchPhase, ElementId, EntityId, EventEmitter, FocusHandle,
76 FocusOutEvent, FocusableView, FontId, FontWeight, HighlightStyle, Hsla, InteractiveText,
77 KeyContext, ListSizingBehavior, Model, MouseButton, PaintQuad, ParentElement, Pixels, Render,
78 SharedString, Size, StrikethroughStyle, Styled, StyledText, Subscription, Task, TextStyle,
79 UnderlineStyle, UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext,
80 WeakFocusHandle, WeakView, WindowContext,
81};
82use highlight_matching_bracket::refresh_matching_bracket_highlights;
83use hover_popover::{hide_hover, HoverState};
84use hunk_diff::ExpandedHunks;
85pub(crate) use hunk_diff::HoveredHunk;
86use indent_guides::ActiveIndentGuidesState;
87use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
88pub use inline_completion_provider::*;
89pub use items::MAX_TAB_TITLE_LEN;
90use itertools::Itertools;
91use language::{
92 char_kind,
93 language_settings::{self, all_language_settings, InlayHintSettings},
94 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
95 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
96 Point, Selection, SelectionGoal, TransactionId,
97};
98use language::{point_to_lsp, BufferRow, Runnable, RunnableRange};
99use linked_editing_ranges::refresh_linked_ranges;
100use task::{ResolvedTask, TaskTemplate, TaskVariables};
101
102use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
103pub use lsp::CompletionContext;
104use lsp::{
105 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
106 LanguageServerId,
107};
108use mouse_context_menu::MouseContextMenu;
109use movement::TextLayoutDetails;
110pub use multi_buffer::{
111 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
112 ToPoint,
113};
114use multi_buffer::{ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16};
115use ordered_float::OrderedFloat;
116use parking_lot::{Mutex, RwLock};
117use project::project_settings::{GitGutterSetting, ProjectSettings};
118use project::{
119 CodeAction, Completion, CompletionIntent, FormatTrigger, Item, Location, Project, ProjectPath,
120 ProjectTransaction, TaskSourceKind, WorktreeId,
121};
122use rand::prelude::*;
123use rpc::{proto::*, ErrorExt};
124use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
125use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
126use serde::{Deserialize, Serialize};
127use settings::{update_settings_file, Settings, SettingsStore};
128use smallvec::SmallVec;
129use snippet::Snippet;
130use std::{
131 any::TypeId,
132 borrow::Cow,
133 cell::RefCell,
134 cmp::{self, Ordering, Reverse},
135 mem,
136 num::NonZeroU32,
137 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
138 path::{Path, PathBuf},
139 rc::Rc,
140 sync::Arc,
141 time::{Duration, Instant},
142};
143pub use sum_tree::Bias;
144use sum_tree::TreeMap;
145use text::{BufferId, OffsetUtf16, Rope};
146use theme::{
147 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
148 ThemeColors, ThemeSettings,
149};
150use ui::{
151 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
152 ListItem, Popover, Tooltip,
153};
154use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
155use workspace::item::{ItemHandle, PreviewTabsSettings};
156use workspace::notifications::{DetachAndPromptErr, NotificationId};
157use workspace::{
158 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
159};
160use workspace::{OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
161
162use crate::hover_links::find_url;
163use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
164
165pub const FILE_HEADER_HEIGHT: u32 = 1;
166pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
167pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
168pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
169const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
170const MAX_LINE_LEN: usize = 1024;
171const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
172const MAX_SELECTION_HISTORY_LEN: usize = 1024;
173pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
174#[doc(hidden)]
175pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
176#[doc(hidden)]
177pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
178
179pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
180pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
181
182pub fn render_parsed_markdown(
183 element_id: impl Into<ElementId>,
184 parsed: &language::ParsedMarkdown,
185 editor_style: &EditorStyle,
186 workspace: Option<WeakView<Workspace>>,
187 cx: &mut WindowContext,
188) -> InteractiveText {
189 let code_span_background_color = cx
190 .theme()
191 .colors()
192 .editor_document_highlight_read_background;
193
194 let highlights = gpui::combine_highlights(
195 parsed.highlights.iter().filter_map(|(range, highlight)| {
196 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
197 Some((range.clone(), highlight))
198 }),
199 parsed
200 .regions
201 .iter()
202 .zip(&parsed.region_ranges)
203 .filter_map(|(region, range)| {
204 if region.code {
205 Some((
206 range.clone(),
207 HighlightStyle {
208 background_color: Some(code_span_background_color),
209 ..Default::default()
210 },
211 ))
212 } else {
213 None
214 }
215 }),
216 );
217
218 let mut links = Vec::new();
219 let mut link_ranges = Vec::new();
220 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
221 if let Some(link) = region.link.clone() {
222 links.push(link);
223 link_ranges.push(range.clone());
224 }
225 }
226
227 InteractiveText::new(
228 element_id,
229 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
230 )
231 .on_click(link_ranges, move |clicked_range_ix, cx| {
232 match &links[clicked_range_ix] {
233 markdown::Link::Web { url } => cx.open_url(url),
234 markdown::Link::Path { path } => {
235 if let Some(workspace) = &workspace {
236 _ = workspace.update(cx, |workspace, cx| {
237 workspace.open_abs_path(path.clone(), false, cx).detach();
238 });
239 }
240 }
241 }
242 })
243}
244
245#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
246pub(crate) enum InlayId {
247 Suggestion(usize),
248 Hint(usize),
249}
250
251impl InlayId {
252 fn id(&self) -> usize {
253 match self {
254 Self::Suggestion(id) => *id,
255 Self::Hint(id) => *id,
256 }
257 }
258}
259
260enum DiffRowHighlight {}
261enum DocumentHighlightRead {}
262enum DocumentHighlightWrite {}
263enum InputComposition {}
264
265#[derive(Copy, Clone, PartialEq, Eq)]
266pub enum Direction {
267 Prev,
268 Next,
269}
270
271#[derive(Debug, Copy, Clone, PartialEq, Eq)]
272pub enum Navigated {
273 Yes,
274 No,
275}
276
277impl Navigated {
278 pub fn from_bool(yes: bool) -> Navigated {
279 if yes {
280 Navigated::Yes
281 } else {
282 Navigated::No
283 }
284 }
285}
286
287pub fn init_settings(cx: &mut AppContext) {
288 EditorSettings::register(cx);
289}
290
291pub fn init(cx: &mut AppContext) {
292 init_settings(cx);
293
294 workspace::register_project_item::<Editor>(cx);
295 workspace::FollowableViewRegistry::register::<Editor>(cx);
296 workspace::register_serializable_item::<Editor>(cx);
297
298 cx.observe_new_views(
299 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
300 workspace.register_action(Editor::new_file);
301 workspace.register_action(Editor::new_file_vertical);
302 workspace.register_action(Editor::new_file_horizontal);
303 },
304 )
305 .detach();
306
307 cx.on_action(move |_: &workspace::NewFile, cx| {
308 let app_state = workspace::AppState::global(cx);
309 if let Some(app_state) = app_state.upgrade() {
310 workspace::open_new(app_state, cx, |workspace, cx| {
311 Editor::new_file(workspace, &Default::default(), cx)
312 })
313 .detach();
314 }
315 });
316 cx.on_action(move |_: &workspace::NewWindow, cx| {
317 let app_state = workspace::AppState::global(cx);
318 if let Some(app_state) = app_state.upgrade() {
319 workspace::open_new(app_state, cx, |workspace, cx| {
320 Editor::new_file(workspace, &Default::default(), cx)
321 })
322 .detach();
323 }
324 });
325}
326
327pub struct SearchWithinRange;
328
329trait InvalidationRegion {
330 fn ranges(&self) -> &[Range<Anchor>];
331}
332
333#[derive(Clone, Debug, PartialEq)]
334pub enum SelectPhase {
335 Begin {
336 position: DisplayPoint,
337 add: bool,
338 click_count: usize,
339 },
340 BeginColumnar {
341 position: DisplayPoint,
342 reset: bool,
343 goal_column: u32,
344 },
345 Extend {
346 position: DisplayPoint,
347 click_count: usize,
348 },
349 Update {
350 position: DisplayPoint,
351 goal_column: u32,
352 scroll_delta: gpui::Point<f32>,
353 },
354 End,
355}
356
357#[derive(Clone, Debug)]
358pub enum SelectMode {
359 Character,
360 Word(Range<Anchor>),
361 Line(Range<Anchor>),
362 All,
363}
364
365#[derive(Copy, Clone, PartialEq, Eq, Debug)]
366pub enum EditorMode {
367 SingleLine { auto_width: bool },
368 AutoHeight { max_lines: usize },
369 Full,
370}
371
372#[derive(Clone, Debug)]
373pub enum SoftWrap {
374 None,
375 PreferLine,
376 EditorWidth,
377 Column(u32),
378 Bounded(u32),
379}
380
381#[derive(Clone)]
382pub struct EditorStyle {
383 pub background: Hsla,
384 pub local_player: PlayerColor,
385 pub text: TextStyle,
386 pub scrollbar_width: Pixels,
387 pub syntax: Arc<SyntaxTheme>,
388 pub status: StatusColors,
389 pub inlay_hints_style: HighlightStyle,
390 pub suggestions_style: HighlightStyle,
391 pub unnecessary_code_fade: f32,
392}
393
394impl Default for EditorStyle {
395 fn default() -> Self {
396 Self {
397 background: Hsla::default(),
398 local_player: PlayerColor::default(),
399 text: TextStyle::default(),
400 scrollbar_width: Pixels::default(),
401 syntax: Default::default(),
402 // HACK: Status colors don't have a real default.
403 // We should look into removing the status colors from the editor
404 // style and retrieve them directly from the theme.
405 status: StatusColors::dark(),
406 inlay_hints_style: HighlightStyle::default(),
407 suggestions_style: HighlightStyle::default(),
408 unnecessary_code_fade: Default::default(),
409 }
410 }
411}
412
413type CompletionId = usize;
414
415#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
416struct EditorActionId(usize);
417
418impl EditorActionId {
419 pub fn post_inc(&mut self) -> Self {
420 let answer = self.0;
421
422 *self = Self(answer + 1);
423
424 Self(answer)
425 }
426}
427
428// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
429// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
430
431type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
432type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
433
434#[derive(Default)]
435struct ScrollbarMarkerState {
436 scrollbar_size: Size<Pixels>,
437 dirty: bool,
438 markers: Arc<[PaintQuad]>,
439 pending_refresh: Option<Task<Result<()>>>,
440}
441
442impl ScrollbarMarkerState {
443 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
444 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
445 }
446}
447
448#[derive(Clone, Debug)]
449struct RunnableTasks {
450 templates: Vec<(TaskSourceKind, TaskTemplate)>,
451 offset: MultiBufferOffset,
452 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
453 column: u32,
454 // Values of all named captures, including those starting with '_'
455 extra_variables: HashMap<String, String>,
456 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
457 context_range: Range<BufferOffset>,
458}
459
460#[derive(Clone)]
461struct ResolvedTasks {
462 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
463 position: Anchor,
464}
465#[derive(Copy, Clone, Debug)]
466struct MultiBufferOffset(usize);
467#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
468struct BufferOffset(usize);
469
470// Addons allow storing per-editor state in other crates (e.g. Vim)
471pub trait Addon: 'static {
472 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
473
474 fn to_any(&self) -> &dyn std::any::Any;
475}
476
477/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
478///
479/// See the [module level documentation](self) for more information.
480pub struct Editor {
481 focus_handle: FocusHandle,
482 last_focused_descendant: Option<WeakFocusHandle>,
483 /// The text buffer being edited
484 buffer: Model<MultiBuffer>,
485 /// Map of how text in the buffer should be displayed.
486 /// Handles soft wraps, folds, fake inlay text insertions, etc.
487 pub display_map: Model<DisplayMap>,
488 pub selections: SelectionsCollection,
489 pub scroll_manager: ScrollManager,
490 /// When inline assist editors are linked, they all render cursors because
491 /// typing enters text into each of them, even the ones that aren't focused.
492 pub(crate) show_cursor_when_unfocused: bool,
493 columnar_selection_tail: Option<Anchor>,
494 add_selections_state: Option<AddSelectionsState>,
495 select_next_state: Option<SelectNextState>,
496 select_prev_state: Option<SelectNextState>,
497 selection_history: SelectionHistory,
498 autoclose_regions: Vec<AutocloseRegion>,
499 snippet_stack: InvalidationStack<SnippetState>,
500 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
501 ime_transaction: Option<TransactionId>,
502 active_diagnostics: Option<ActiveDiagnosticGroup>,
503 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
504 project: Option<Model<Project>>,
505 completion_provider: Option<Box<dyn CompletionProvider>>,
506 collaboration_hub: Option<Box<dyn CollaborationHub>>,
507 blink_manager: Model<BlinkManager>,
508 show_cursor_names: bool,
509 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
510 pub show_local_selections: bool,
511 mode: EditorMode,
512 show_breadcrumbs: bool,
513 show_gutter: bool,
514 show_line_numbers: Option<bool>,
515 show_git_diff_gutter: Option<bool>,
516 show_code_actions: Option<bool>,
517 show_runnables: Option<bool>,
518 show_wrap_guides: Option<bool>,
519 show_indent_guides: Option<bool>,
520 placeholder_text: Option<Arc<str>>,
521 highlight_order: usize,
522 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
523 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
524 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
525 scrollbar_marker_state: ScrollbarMarkerState,
526 active_indent_guides_state: ActiveIndentGuidesState,
527 nav_history: Option<ItemNavHistory>,
528 context_menu: RwLock<Option<ContextMenu>>,
529 mouse_context_menu: Option<MouseContextMenu>,
530 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
531 signature_help_state: SignatureHelpState,
532 auto_signature_help: Option<bool>,
533 find_all_references_task_sources: Vec<Anchor>,
534 next_completion_id: CompletionId,
535 completion_documentation_pre_resolve_debounce: DebouncedDelay,
536 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
537 code_actions_task: Option<Task<()>>,
538 document_highlights_task: Option<Task<()>>,
539 linked_editing_range_task: Option<Task<Option<()>>>,
540 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
541 pending_rename: Option<RenameState>,
542 searchable: bool,
543 cursor_shape: CursorShape,
544 current_line_highlight: Option<CurrentLineHighlight>,
545 collapse_matches: bool,
546 autoindent_mode: Option<AutoindentMode>,
547 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
548 input_enabled: bool,
549 use_modal_editing: bool,
550 read_only: bool,
551 leader_peer_id: Option<PeerId>,
552 remote_id: Option<ViewId>,
553 hover_state: HoverState,
554 gutter_hovered: bool,
555 hovered_link_state: Option<HoveredLinkState>,
556 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
557 active_inline_completion: Option<(Inlay, Option<Range<Anchor>>)>,
558 show_inline_completions: bool,
559 inlay_hint_cache: InlayHintCache,
560 expanded_hunks: ExpandedHunks,
561 next_inlay_id: usize,
562 _subscriptions: Vec<Subscription>,
563 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
564 gutter_dimensions: GutterDimensions,
565 style: Option<EditorStyle>,
566 next_editor_action_id: EditorActionId,
567 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
568 use_autoclose: bool,
569 use_auto_surround: bool,
570 auto_replace_emoji_shortcode: bool,
571 show_git_blame_gutter: bool,
572 show_git_blame_inline: bool,
573 show_git_blame_inline_delay_task: Option<Task<()>>,
574 git_blame_inline_enabled: bool,
575 serialize_dirty_buffers: bool,
576 show_selection_menu: Option<bool>,
577 blame: Option<Model<GitBlame>>,
578 blame_subscription: Option<Subscription>,
579 custom_context_menu: Option<
580 Box<
581 dyn 'static
582 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
583 >,
584 >,
585 last_bounds: Option<Bounds<Pixels>>,
586 expect_bounds_change: Option<Bounds<Pixels>>,
587 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
588 tasks_update_task: Option<Task<()>>,
589 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
590 file_header_size: u32,
591 breadcrumb_header: Option<String>,
592 focused_block: Option<FocusedBlock>,
593 next_scroll_position: NextScrollCursorCenterTopBottom,
594 addons: HashMap<TypeId, Box<dyn Addon>>,
595 _scroll_cursor_center_top_bottom_task: Task<()>,
596}
597
598#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
599enum NextScrollCursorCenterTopBottom {
600 #[default]
601 Center,
602 Top,
603 Bottom,
604}
605
606impl NextScrollCursorCenterTopBottom {
607 fn next(&self) -> Self {
608 match self {
609 Self::Center => Self::Top,
610 Self::Top => Self::Bottom,
611 Self::Bottom => Self::Center,
612 }
613 }
614}
615
616#[derive(Clone)]
617pub struct EditorSnapshot {
618 pub mode: EditorMode,
619 show_gutter: bool,
620 show_line_numbers: Option<bool>,
621 show_git_diff_gutter: Option<bool>,
622 show_code_actions: Option<bool>,
623 show_runnables: Option<bool>,
624 render_git_blame_gutter: bool,
625 pub display_snapshot: DisplaySnapshot,
626 pub placeholder_text: Option<Arc<str>>,
627 is_focused: bool,
628 scroll_anchor: ScrollAnchor,
629 ongoing_scroll: OngoingScroll,
630 current_line_highlight: CurrentLineHighlight,
631 gutter_hovered: bool,
632}
633
634const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
635
636#[derive(Default, Debug, Clone, Copy)]
637pub struct GutterDimensions {
638 pub left_padding: Pixels,
639 pub right_padding: Pixels,
640 pub width: Pixels,
641 pub margin: Pixels,
642 pub git_blame_entries_width: Option<Pixels>,
643}
644
645impl GutterDimensions {
646 /// The full width of the space taken up by the gutter.
647 pub fn full_width(&self) -> Pixels {
648 self.margin + self.width
649 }
650
651 /// The width of the space reserved for the fold indicators,
652 /// use alongside 'justify_end' and `gutter_width` to
653 /// right align content with the line numbers
654 pub fn fold_area_width(&self) -> Pixels {
655 self.margin + self.right_padding
656 }
657}
658
659#[derive(Debug)]
660pub struct RemoteSelection {
661 pub replica_id: ReplicaId,
662 pub selection: Selection<Anchor>,
663 pub cursor_shape: CursorShape,
664 pub peer_id: PeerId,
665 pub line_mode: bool,
666 pub participant_index: Option<ParticipantIndex>,
667 pub user_name: Option<SharedString>,
668}
669
670#[derive(Clone, Debug)]
671struct SelectionHistoryEntry {
672 selections: Arc<[Selection<Anchor>]>,
673 select_next_state: Option<SelectNextState>,
674 select_prev_state: Option<SelectNextState>,
675 add_selections_state: Option<AddSelectionsState>,
676}
677
678enum SelectionHistoryMode {
679 Normal,
680 Undoing,
681 Redoing,
682}
683
684#[derive(Clone, PartialEq, Eq, Hash)]
685struct HoveredCursor {
686 replica_id: u16,
687 selection_id: usize,
688}
689
690impl Default for SelectionHistoryMode {
691 fn default() -> Self {
692 Self::Normal
693 }
694}
695
696#[derive(Default)]
697struct SelectionHistory {
698 #[allow(clippy::type_complexity)]
699 selections_by_transaction:
700 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
701 mode: SelectionHistoryMode,
702 undo_stack: VecDeque<SelectionHistoryEntry>,
703 redo_stack: VecDeque<SelectionHistoryEntry>,
704}
705
706impl SelectionHistory {
707 fn insert_transaction(
708 &mut self,
709 transaction_id: TransactionId,
710 selections: Arc<[Selection<Anchor>]>,
711 ) {
712 self.selections_by_transaction
713 .insert(transaction_id, (selections, None));
714 }
715
716 #[allow(clippy::type_complexity)]
717 fn transaction(
718 &self,
719 transaction_id: TransactionId,
720 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
721 self.selections_by_transaction.get(&transaction_id)
722 }
723
724 #[allow(clippy::type_complexity)]
725 fn transaction_mut(
726 &mut self,
727 transaction_id: TransactionId,
728 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
729 self.selections_by_transaction.get_mut(&transaction_id)
730 }
731
732 fn push(&mut self, entry: SelectionHistoryEntry) {
733 if !entry.selections.is_empty() {
734 match self.mode {
735 SelectionHistoryMode::Normal => {
736 self.push_undo(entry);
737 self.redo_stack.clear();
738 }
739 SelectionHistoryMode::Undoing => self.push_redo(entry),
740 SelectionHistoryMode::Redoing => self.push_undo(entry),
741 }
742 }
743 }
744
745 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
746 if self
747 .undo_stack
748 .back()
749 .map_or(true, |e| e.selections != entry.selections)
750 {
751 self.undo_stack.push_back(entry);
752 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
753 self.undo_stack.pop_front();
754 }
755 }
756 }
757
758 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
759 if self
760 .redo_stack
761 .back()
762 .map_or(true, |e| e.selections != entry.selections)
763 {
764 self.redo_stack.push_back(entry);
765 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
766 self.redo_stack.pop_front();
767 }
768 }
769 }
770}
771
772struct RowHighlight {
773 index: usize,
774 range: RangeInclusive<Anchor>,
775 color: Option<Hsla>,
776 should_autoscroll: bool,
777}
778
779#[derive(Clone, Debug)]
780struct AddSelectionsState {
781 above: bool,
782 stack: Vec<usize>,
783}
784
785#[derive(Clone)]
786struct SelectNextState {
787 query: AhoCorasick,
788 wordwise: bool,
789 done: bool,
790}
791
792impl std::fmt::Debug for SelectNextState {
793 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
794 f.debug_struct(std::any::type_name::<Self>())
795 .field("wordwise", &self.wordwise)
796 .field("done", &self.done)
797 .finish()
798 }
799}
800
801#[derive(Debug)]
802struct AutocloseRegion {
803 selection_id: usize,
804 range: Range<Anchor>,
805 pair: BracketPair,
806}
807
808#[derive(Debug)]
809struct SnippetState {
810 ranges: Vec<Vec<Range<Anchor>>>,
811 active_index: usize,
812}
813
814#[doc(hidden)]
815pub struct RenameState {
816 pub range: Range<Anchor>,
817 pub old_name: Arc<str>,
818 pub editor: View<Editor>,
819 block_id: CustomBlockId,
820}
821
822struct InvalidationStack<T>(Vec<T>);
823
824struct RegisteredInlineCompletionProvider {
825 provider: Arc<dyn InlineCompletionProviderHandle>,
826 _subscription: Subscription,
827}
828
829enum ContextMenu {
830 Completions(CompletionsMenu),
831 CodeActions(CodeActionsMenu),
832}
833
834impl ContextMenu {
835 fn select_first(
836 &mut self,
837 project: Option<&Model<Project>>,
838 cx: &mut ViewContext<Editor>,
839 ) -> bool {
840 if self.visible() {
841 match self {
842 ContextMenu::Completions(menu) => menu.select_first(project, cx),
843 ContextMenu::CodeActions(menu) => menu.select_first(cx),
844 }
845 true
846 } else {
847 false
848 }
849 }
850
851 fn select_prev(
852 &mut self,
853 project: Option<&Model<Project>>,
854 cx: &mut ViewContext<Editor>,
855 ) -> bool {
856 if self.visible() {
857 match self {
858 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
859 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
860 }
861 true
862 } else {
863 false
864 }
865 }
866
867 fn select_next(
868 &mut self,
869 project: Option<&Model<Project>>,
870 cx: &mut ViewContext<Editor>,
871 ) -> bool {
872 if self.visible() {
873 match self {
874 ContextMenu::Completions(menu) => menu.select_next(project, cx),
875 ContextMenu::CodeActions(menu) => menu.select_next(cx),
876 }
877 true
878 } else {
879 false
880 }
881 }
882
883 fn select_last(
884 &mut self,
885 project: Option<&Model<Project>>,
886 cx: &mut ViewContext<Editor>,
887 ) -> bool {
888 if self.visible() {
889 match self {
890 ContextMenu::Completions(menu) => menu.select_last(project, cx),
891 ContextMenu::CodeActions(menu) => menu.select_last(cx),
892 }
893 true
894 } else {
895 false
896 }
897 }
898
899 fn visible(&self) -> bool {
900 match self {
901 ContextMenu::Completions(menu) => menu.visible(),
902 ContextMenu::CodeActions(menu) => menu.visible(),
903 }
904 }
905
906 fn render(
907 &self,
908 cursor_position: DisplayPoint,
909 style: &EditorStyle,
910 max_height: Pixels,
911 workspace: Option<WeakView<Workspace>>,
912 cx: &mut ViewContext<Editor>,
913 ) -> (ContextMenuOrigin, AnyElement) {
914 match self {
915 ContextMenu::Completions(menu) => (
916 ContextMenuOrigin::EditorPoint(cursor_position),
917 menu.render(style, max_height, workspace, cx),
918 ),
919 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
920 }
921 }
922}
923
924enum ContextMenuOrigin {
925 EditorPoint(DisplayPoint),
926 GutterIndicator(DisplayRow),
927}
928
929#[derive(Clone)]
930struct CompletionsMenu {
931 id: CompletionId,
932 sort_completions: bool,
933 initial_position: Anchor,
934 buffer: Model<Buffer>,
935 completions: Arc<RwLock<Box<[Completion]>>>,
936 match_candidates: Arc<[StringMatchCandidate]>,
937 matches: Arc<[StringMatch]>,
938 selected_item: usize,
939 scroll_handle: UniformListScrollHandle,
940 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
941}
942
943impl CompletionsMenu {
944 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
945 self.selected_item = 0;
946 self.scroll_handle.scroll_to_item(self.selected_item);
947 self.attempt_resolve_selected_completion_documentation(project, cx);
948 cx.notify();
949 }
950
951 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
952 if self.selected_item > 0 {
953 self.selected_item -= 1;
954 } else {
955 self.selected_item = self.matches.len() - 1;
956 }
957 self.scroll_handle.scroll_to_item(self.selected_item);
958 self.attempt_resolve_selected_completion_documentation(project, cx);
959 cx.notify();
960 }
961
962 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
963 if self.selected_item + 1 < self.matches.len() {
964 self.selected_item += 1;
965 } else {
966 self.selected_item = 0;
967 }
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_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
974 self.selected_item = self.matches.len() - 1;
975 self.scroll_handle.scroll_to_item(self.selected_item);
976 self.attempt_resolve_selected_completion_documentation(project, cx);
977 cx.notify();
978 }
979
980 fn pre_resolve_completion_documentation(
981 buffer: Model<Buffer>,
982 completions: Arc<RwLock<Box<[Completion]>>>,
983 matches: Arc<[StringMatch]>,
984 editor: &Editor,
985 cx: &mut ViewContext<Editor>,
986 ) -> Task<()> {
987 let settings = EditorSettings::get_global(cx);
988 if !settings.show_completion_documentation {
989 return Task::ready(());
990 }
991
992 let Some(provider) = editor.completion_provider.as_ref() else {
993 return Task::ready(());
994 };
995
996 let resolve_task = provider.resolve_completions(
997 buffer,
998 matches.iter().map(|m| m.candidate_id).collect(),
999 completions.clone(),
1000 cx,
1001 );
1002
1003 return cx.spawn(move |this, mut cx| async move {
1004 if let Some(true) = resolve_task.await.log_err() {
1005 this.update(&mut cx, |_, cx| cx.notify()).ok();
1006 }
1007 });
1008 }
1009
1010 fn attempt_resolve_selected_completion_documentation(
1011 &mut self,
1012 project: Option<&Model<Project>>,
1013 cx: &mut ViewContext<Editor>,
1014 ) {
1015 let settings = EditorSettings::get_global(cx);
1016 if !settings.show_completion_documentation {
1017 return;
1018 }
1019
1020 let completion_index = self.matches[self.selected_item].candidate_id;
1021 let Some(project) = project else {
1022 return;
1023 };
1024
1025 let resolve_task = project.update(cx, |project, cx| {
1026 project.resolve_completions(
1027 self.buffer.clone(),
1028 vec![completion_index],
1029 self.completions.clone(),
1030 cx,
1031 )
1032 });
1033
1034 let delay_ms =
1035 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1036 let delay = Duration::from_millis(delay_ms);
1037
1038 self.selected_completion_documentation_resolve_debounce
1039 .lock()
1040 .fire_new(delay, cx, |_, cx| {
1041 cx.spawn(move |this, mut cx| async move {
1042 if let Some(true) = resolve_task.await.log_err() {
1043 this.update(&mut cx, |_, cx| cx.notify()).ok();
1044 }
1045 })
1046 });
1047 }
1048
1049 fn visible(&self) -> bool {
1050 !self.matches.is_empty()
1051 }
1052
1053 fn render(
1054 &self,
1055 style: &EditorStyle,
1056 max_height: Pixels,
1057 workspace: Option<WeakView<Workspace>>,
1058 cx: &mut ViewContext<Editor>,
1059 ) -> AnyElement {
1060 let settings = EditorSettings::get_global(cx);
1061 let show_completion_documentation = settings.show_completion_documentation;
1062
1063 let widest_completion_ix = self
1064 .matches
1065 .iter()
1066 .enumerate()
1067 .max_by_key(|(_, mat)| {
1068 let completions = self.completions.read();
1069 let completion = &completions[mat.candidate_id];
1070 let documentation = &completion.documentation;
1071
1072 let mut len = completion.label.text.chars().count();
1073 if let Some(Documentation::SingleLine(text)) = documentation {
1074 if show_completion_documentation {
1075 len += text.chars().count();
1076 }
1077 }
1078
1079 len
1080 })
1081 .map(|(ix, _)| ix);
1082
1083 let completions = self.completions.clone();
1084 let matches = self.matches.clone();
1085 let selected_item = self.selected_item;
1086 let style = style.clone();
1087
1088 let multiline_docs = if show_completion_documentation {
1089 let mat = &self.matches[selected_item];
1090 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1091 Some(Documentation::MultiLinePlainText(text)) => {
1092 Some(div().child(SharedString::from(text.clone())))
1093 }
1094 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1095 Some(div().child(render_parsed_markdown(
1096 "completions_markdown",
1097 parsed,
1098 &style,
1099 workspace,
1100 cx,
1101 )))
1102 }
1103 _ => None,
1104 };
1105 multiline_docs.map(|div| {
1106 div.id("multiline_docs")
1107 .max_h(max_height)
1108 .flex_1()
1109 .px_1p5()
1110 .py_1()
1111 .min_w(px(260.))
1112 .max_w(px(640.))
1113 .w(px(500.))
1114 .overflow_y_scroll()
1115 .occlude()
1116 })
1117 } else {
1118 None
1119 };
1120
1121 let list = uniform_list(
1122 cx.view().clone(),
1123 "completions",
1124 matches.len(),
1125 move |_editor, range, cx| {
1126 let start_ix = range.start;
1127 let completions_guard = completions.read();
1128
1129 matches[range]
1130 .iter()
1131 .enumerate()
1132 .map(|(ix, mat)| {
1133 let item_ix = start_ix + ix;
1134 let candidate_id = mat.candidate_id;
1135 let completion = &completions_guard[candidate_id];
1136
1137 let documentation = if show_completion_documentation {
1138 &completion.documentation
1139 } else {
1140 &None
1141 };
1142
1143 let highlights = gpui::combine_highlights(
1144 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1145 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1146 |(range, mut highlight)| {
1147 // Ignore font weight for syntax highlighting, as we'll use it
1148 // for fuzzy matches.
1149 highlight.font_weight = None;
1150
1151 if completion.lsp_completion.deprecated.unwrap_or(false) {
1152 highlight.strikethrough = Some(StrikethroughStyle {
1153 thickness: 1.0.into(),
1154 ..Default::default()
1155 });
1156 highlight.color = Some(cx.theme().colors().text_muted);
1157 }
1158
1159 (range, highlight)
1160 },
1161 ),
1162 );
1163 let completion_label = StyledText::new(completion.label.text.clone())
1164 .with_highlights(&style.text, highlights);
1165 let documentation_label =
1166 if let Some(Documentation::SingleLine(text)) = documentation {
1167 if text.trim().is_empty() {
1168 None
1169 } else {
1170 Some(
1171 Label::new(text.clone())
1172 .ml_4()
1173 .size(LabelSize::Small)
1174 .color(Color::Muted),
1175 )
1176 }
1177 } else {
1178 None
1179 };
1180
1181 div().min_w(px(220.)).max_w(px(540.)).child(
1182 ListItem::new(mat.candidate_id)
1183 .inset(true)
1184 .selected(item_ix == selected_item)
1185 .on_click(cx.listener(move |editor, _event, cx| {
1186 cx.stop_propagation();
1187 if let Some(task) = editor.confirm_completion(
1188 &ConfirmCompletion {
1189 item_ix: Some(item_ix),
1190 },
1191 cx,
1192 ) {
1193 task.detach_and_log_err(cx)
1194 }
1195 }))
1196 .child(h_flex().overflow_hidden().child(completion_label))
1197 .end_slot::<Label>(documentation_label),
1198 )
1199 })
1200 .collect()
1201 },
1202 )
1203 .occlude()
1204 .max_h(max_height)
1205 .track_scroll(self.scroll_handle.clone())
1206 .with_width_from_item(widest_completion_ix)
1207 .with_sizing_behavior(ListSizingBehavior::Infer);
1208
1209 Popover::new()
1210 .child(list)
1211 .when_some(multiline_docs, |popover, multiline_docs| {
1212 popover.aside(multiline_docs)
1213 })
1214 .into_any_element()
1215 }
1216
1217 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1218 let mut matches = if let Some(query) = query {
1219 fuzzy::match_strings(
1220 &self.match_candidates,
1221 query,
1222 query.chars().any(|c| c.is_uppercase()),
1223 100,
1224 &Default::default(),
1225 executor,
1226 )
1227 .await
1228 } else {
1229 self.match_candidates
1230 .iter()
1231 .enumerate()
1232 .map(|(candidate_id, candidate)| StringMatch {
1233 candidate_id,
1234 score: Default::default(),
1235 positions: Default::default(),
1236 string: candidate.string.clone(),
1237 })
1238 .collect()
1239 };
1240
1241 // Remove all candidates where the query's start does not match the start of any word in the candidate
1242 if let Some(query) = query {
1243 if let Some(query_start) = query.chars().next() {
1244 matches.retain(|string_match| {
1245 split_words(&string_match.string).any(|word| {
1246 // Check that the first codepoint of the word as lowercase matches the first
1247 // codepoint of the query as lowercase
1248 word.chars()
1249 .flat_map(|codepoint| codepoint.to_lowercase())
1250 .zip(query_start.to_lowercase())
1251 .all(|(word_cp, query_cp)| word_cp == query_cp)
1252 })
1253 });
1254 }
1255 }
1256
1257 let completions = self.completions.read();
1258 if self.sort_completions {
1259 matches.sort_unstable_by_key(|mat| {
1260 // We do want to strike a balance here between what the language server tells us
1261 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1262 // `Creat` and there is a local variable called `CreateComponent`).
1263 // So what we do is: we bucket all matches into two buckets
1264 // - Strong matches
1265 // - Weak matches
1266 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1267 // and the Weak matches are the rest.
1268 //
1269 // For the strong matches, we sort by the language-servers score first and for the weak
1270 // matches, we prefer our fuzzy finder first.
1271 //
1272 // The thinking behind that: it's useless to take the sort_text the language-server gives
1273 // us into account when it's obviously a bad match.
1274
1275 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1276 enum MatchScore<'a> {
1277 Strong {
1278 sort_text: Option<&'a str>,
1279 score: Reverse<OrderedFloat<f64>>,
1280 sort_key: (usize, &'a str),
1281 },
1282 Weak {
1283 score: Reverse<OrderedFloat<f64>>,
1284 sort_text: Option<&'a str>,
1285 sort_key: (usize, &'a str),
1286 },
1287 }
1288
1289 let completion = &completions[mat.candidate_id];
1290 let sort_key = completion.sort_key();
1291 let sort_text = completion.lsp_completion.sort_text.as_deref();
1292 let score = Reverse(OrderedFloat(mat.score));
1293
1294 if mat.score >= 0.2 {
1295 MatchScore::Strong {
1296 sort_text,
1297 score,
1298 sort_key,
1299 }
1300 } else {
1301 MatchScore::Weak {
1302 score,
1303 sort_text,
1304 sort_key,
1305 }
1306 }
1307 });
1308 }
1309
1310 for mat in &mut matches {
1311 let completion = &completions[mat.candidate_id];
1312 mat.string.clone_from(&completion.label.text);
1313 for position in &mut mat.positions {
1314 *position += completion.label.filter_range.start;
1315 }
1316 }
1317 drop(completions);
1318
1319 self.matches = matches.into();
1320 self.selected_item = 0;
1321 }
1322}
1323
1324#[derive(Clone)]
1325struct CodeActionContents {
1326 tasks: Option<Arc<ResolvedTasks>>,
1327 actions: Option<Arc<[CodeAction]>>,
1328}
1329
1330impl CodeActionContents {
1331 fn len(&self) -> usize {
1332 match (&self.tasks, &self.actions) {
1333 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1334 (Some(tasks), None) => tasks.templates.len(),
1335 (None, Some(actions)) => actions.len(),
1336 (None, None) => 0,
1337 }
1338 }
1339
1340 fn is_empty(&self) -> bool {
1341 match (&self.tasks, &self.actions) {
1342 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1343 (Some(tasks), None) => tasks.templates.is_empty(),
1344 (None, Some(actions)) => actions.is_empty(),
1345 (None, None) => true,
1346 }
1347 }
1348
1349 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1350 self.tasks
1351 .iter()
1352 .flat_map(|tasks| {
1353 tasks
1354 .templates
1355 .iter()
1356 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1357 })
1358 .chain(self.actions.iter().flat_map(|actions| {
1359 actions
1360 .iter()
1361 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1362 }))
1363 }
1364 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1365 match (&self.tasks, &self.actions) {
1366 (Some(tasks), Some(actions)) => {
1367 if index < tasks.templates.len() {
1368 tasks
1369 .templates
1370 .get(index)
1371 .cloned()
1372 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1373 } else {
1374 actions
1375 .get(index - tasks.templates.len())
1376 .cloned()
1377 .map(CodeActionsItem::CodeAction)
1378 }
1379 }
1380 (Some(tasks), None) => tasks
1381 .templates
1382 .get(index)
1383 .cloned()
1384 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1385 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1386 (None, None) => None,
1387 }
1388 }
1389}
1390
1391#[allow(clippy::large_enum_variant)]
1392#[derive(Clone)]
1393enum CodeActionsItem {
1394 Task(TaskSourceKind, ResolvedTask),
1395 CodeAction(CodeAction),
1396}
1397
1398impl CodeActionsItem {
1399 fn as_task(&self) -> Option<&ResolvedTask> {
1400 let Self::Task(_, task) = self else {
1401 return None;
1402 };
1403 Some(task)
1404 }
1405 fn as_code_action(&self) -> Option<&CodeAction> {
1406 let Self::CodeAction(action) = self else {
1407 return None;
1408 };
1409 Some(action)
1410 }
1411 fn label(&self) -> String {
1412 match self {
1413 Self::CodeAction(action) => action.lsp_action.title.clone(),
1414 Self::Task(_, task) => task.resolved_label.clone(),
1415 }
1416 }
1417}
1418
1419struct CodeActionsMenu {
1420 actions: CodeActionContents,
1421 buffer: Model<Buffer>,
1422 selected_item: usize,
1423 scroll_handle: UniformListScrollHandle,
1424 deployed_from_indicator: Option<DisplayRow>,
1425}
1426
1427impl CodeActionsMenu {
1428 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1429 self.selected_item = 0;
1430 self.scroll_handle.scroll_to_item(self.selected_item);
1431 cx.notify()
1432 }
1433
1434 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1435 if self.selected_item > 0 {
1436 self.selected_item -= 1;
1437 } else {
1438 self.selected_item = self.actions.len() - 1;
1439 }
1440 self.scroll_handle.scroll_to_item(self.selected_item);
1441 cx.notify();
1442 }
1443
1444 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1445 if self.selected_item + 1 < self.actions.len() {
1446 self.selected_item += 1;
1447 } else {
1448 self.selected_item = 0;
1449 }
1450 self.scroll_handle.scroll_to_item(self.selected_item);
1451 cx.notify();
1452 }
1453
1454 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1455 self.selected_item = self.actions.len() - 1;
1456 self.scroll_handle.scroll_to_item(self.selected_item);
1457 cx.notify()
1458 }
1459
1460 fn visible(&self) -> bool {
1461 !self.actions.is_empty()
1462 }
1463
1464 fn render(
1465 &self,
1466 cursor_position: DisplayPoint,
1467 _style: &EditorStyle,
1468 max_height: Pixels,
1469 cx: &mut ViewContext<Editor>,
1470 ) -> (ContextMenuOrigin, AnyElement) {
1471 let actions = self.actions.clone();
1472 let selected_item = self.selected_item;
1473 let element = uniform_list(
1474 cx.view().clone(),
1475 "code_actions_menu",
1476 self.actions.len(),
1477 move |_this, range, cx| {
1478 actions
1479 .iter()
1480 .skip(range.start)
1481 .take(range.end - range.start)
1482 .enumerate()
1483 .map(|(ix, action)| {
1484 let item_ix = range.start + ix;
1485 let selected = selected_item == item_ix;
1486 let colors = cx.theme().colors();
1487 div()
1488 .px_2()
1489 .text_color(colors.text)
1490 .when(selected, |style| {
1491 style
1492 .bg(colors.element_active)
1493 .text_color(colors.text_accent)
1494 })
1495 .hover(|style| {
1496 style
1497 .bg(colors.element_hover)
1498 .text_color(colors.text_accent)
1499 })
1500 .whitespace_nowrap()
1501 .when_some(action.as_code_action(), |this, action| {
1502 this.on_mouse_down(
1503 MouseButton::Left,
1504 cx.listener(move |editor, _, cx| {
1505 cx.stop_propagation();
1506 if let Some(task) = editor.confirm_code_action(
1507 &ConfirmCodeAction {
1508 item_ix: Some(item_ix),
1509 },
1510 cx,
1511 ) {
1512 task.detach_and_log_err(cx)
1513 }
1514 }),
1515 )
1516 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1517 .child(SharedString::from(action.lsp_action.title.clone()))
1518 })
1519 .when_some(action.as_task(), |this, task| {
1520 this.on_mouse_down(
1521 MouseButton::Left,
1522 cx.listener(move |editor, _, cx| {
1523 cx.stop_propagation();
1524 if let Some(task) = editor.confirm_code_action(
1525 &ConfirmCodeAction {
1526 item_ix: Some(item_ix),
1527 },
1528 cx,
1529 ) {
1530 task.detach_and_log_err(cx)
1531 }
1532 }),
1533 )
1534 .child(SharedString::from(task.resolved_label.clone()))
1535 })
1536 })
1537 .collect()
1538 },
1539 )
1540 .elevation_1(cx)
1541 .px_2()
1542 .py_1()
1543 .max_h(max_height)
1544 .occlude()
1545 .track_scroll(self.scroll_handle.clone())
1546 .with_width_from_item(
1547 self.actions
1548 .iter()
1549 .enumerate()
1550 .max_by_key(|(_, action)| match action {
1551 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1552 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1553 })
1554 .map(|(ix, _)| ix),
1555 )
1556 .with_sizing_behavior(ListSizingBehavior::Infer)
1557 .into_any_element();
1558
1559 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1560 ContextMenuOrigin::GutterIndicator(row)
1561 } else {
1562 ContextMenuOrigin::EditorPoint(cursor_position)
1563 };
1564
1565 (cursor_position, element)
1566 }
1567}
1568
1569#[derive(Debug)]
1570struct ActiveDiagnosticGroup {
1571 primary_range: Range<Anchor>,
1572 primary_message: String,
1573 group_id: usize,
1574 blocks: HashMap<CustomBlockId, Diagnostic>,
1575 is_valid: bool,
1576}
1577
1578#[derive(Serialize, Deserialize, Clone, Debug)]
1579pub struct ClipboardSelection {
1580 pub len: usize,
1581 pub is_entire_line: bool,
1582 pub first_line_indent: u32,
1583}
1584
1585#[derive(Debug)]
1586pub(crate) struct NavigationData {
1587 cursor_anchor: Anchor,
1588 cursor_position: Point,
1589 scroll_anchor: ScrollAnchor,
1590 scroll_top_row: u32,
1591}
1592
1593#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1594enum GotoDefinitionKind {
1595 Symbol,
1596 Declaration,
1597 Type,
1598 Implementation,
1599}
1600
1601#[derive(Debug, Clone)]
1602enum InlayHintRefreshReason {
1603 Toggle(bool),
1604 SettingsChange(InlayHintSettings),
1605 NewLinesShown,
1606 BufferEdited(HashSet<Arc<Language>>),
1607 RefreshRequested,
1608 ExcerptsRemoved(Vec<ExcerptId>),
1609}
1610
1611impl InlayHintRefreshReason {
1612 fn description(&self) -> &'static str {
1613 match self {
1614 Self::Toggle(_) => "toggle",
1615 Self::SettingsChange(_) => "settings change",
1616 Self::NewLinesShown => "new lines shown",
1617 Self::BufferEdited(_) => "buffer edited",
1618 Self::RefreshRequested => "refresh requested",
1619 Self::ExcerptsRemoved(_) => "excerpts removed",
1620 }
1621 }
1622}
1623
1624pub(crate) struct FocusedBlock {
1625 id: BlockId,
1626 focus_handle: WeakFocusHandle,
1627}
1628
1629impl Editor {
1630 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1631 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1632 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1633 Self::new(
1634 EditorMode::SingleLine { auto_width: false },
1635 buffer,
1636 None,
1637 false,
1638 cx,
1639 )
1640 }
1641
1642 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1643 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1644 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1645 Self::new(EditorMode::Full, buffer, None, false, cx)
1646 }
1647
1648 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1649 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1650 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1651 Self::new(
1652 EditorMode::SingleLine { auto_width: true },
1653 buffer,
1654 None,
1655 false,
1656 cx,
1657 )
1658 }
1659
1660 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1661 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1662 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1663 Self::new(
1664 EditorMode::AutoHeight { max_lines },
1665 buffer,
1666 None,
1667 false,
1668 cx,
1669 )
1670 }
1671
1672 pub fn for_buffer(
1673 buffer: Model<Buffer>,
1674 project: Option<Model<Project>>,
1675 cx: &mut ViewContext<Self>,
1676 ) -> Self {
1677 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1678 Self::new(EditorMode::Full, buffer, project, false, cx)
1679 }
1680
1681 pub fn for_multibuffer(
1682 buffer: Model<MultiBuffer>,
1683 project: Option<Model<Project>>,
1684 show_excerpt_controls: bool,
1685 cx: &mut ViewContext<Self>,
1686 ) -> Self {
1687 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1688 }
1689
1690 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1691 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1692 let mut clone = Self::new(
1693 self.mode,
1694 self.buffer.clone(),
1695 self.project.clone(),
1696 show_excerpt_controls,
1697 cx,
1698 );
1699 self.display_map.update(cx, |display_map, cx| {
1700 let snapshot = display_map.snapshot(cx);
1701 clone.display_map.update(cx, |display_map, cx| {
1702 display_map.set_state(&snapshot, cx);
1703 });
1704 });
1705 clone.selections.clone_state(&self.selections);
1706 clone.scroll_manager.clone_state(&self.scroll_manager);
1707 clone.searchable = self.searchable;
1708 clone
1709 }
1710
1711 pub fn new(
1712 mode: EditorMode,
1713 buffer: Model<MultiBuffer>,
1714 project: Option<Model<Project>>,
1715 show_excerpt_controls: bool,
1716 cx: &mut ViewContext<Self>,
1717 ) -> Self {
1718 let style = cx.text_style();
1719 let font_size = style.font_size.to_pixels(cx.rem_size());
1720 let editor = cx.view().downgrade();
1721 let fold_placeholder = FoldPlaceholder {
1722 constrain_width: true,
1723 render: Arc::new(move |fold_id, fold_range, cx| {
1724 let editor = editor.clone();
1725 div()
1726 .id(fold_id)
1727 .bg(cx.theme().colors().ghost_element_background)
1728 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1729 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1730 .rounded_sm()
1731 .size_full()
1732 .cursor_pointer()
1733 .child("⋯")
1734 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1735 .on_click(move |_, cx| {
1736 editor
1737 .update(cx, |editor, cx| {
1738 editor.unfold_ranges(
1739 [fold_range.start..fold_range.end],
1740 true,
1741 false,
1742 cx,
1743 );
1744 cx.stop_propagation();
1745 })
1746 .ok();
1747 })
1748 .into_any()
1749 }),
1750 merge_adjacent: true,
1751 };
1752 let file_header_size = if show_excerpt_controls { 3 } else { 2 };
1753 let display_map = cx.new_model(|cx| {
1754 DisplayMap::new(
1755 buffer.clone(),
1756 style.font(),
1757 font_size,
1758 None,
1759 show_excerpt_controls,
1760 file_header_size,
1761 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1762 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1763 fold_placeholder,
1764 cx,
1765 )
1766 });
1767
1768 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1769
1770 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1771
1772 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1773 .then(|| language_settings::SoftWrap::PreferLine);
1774
1775 let mut project_subscriptions = Vec::new();
1776 if mode == EditorMode::Full {
1777 if let Some(project) = project.as_ref() {
1778 if buffer.read(cx).is_singleton() {
1779 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1780 cx.emit(EditorEvent::TitleChanged);
1781 }));
1782 }
1783 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1784 if let project::Event::RefreshInlayHints = event {
1785 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1786 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1787 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1788 let focus_handle = editor.focus_handle(cx);
1789 if focus_handle.is_focused(cx) {
1790 let snapshot = buffer.read(cx).snapshot();
1791 for (range, snippet) in snippet_edits {
1792 let editor_range =
1793 language::range_from_lsp(*range).to_offset(&snapshot);
1794 editor
1795 .insert_snippet(&[editor_range], snippet.clone(), cx)
1796 .ok();
1797 }
1798 }
1799 }
1800 }
1801 }));
1802 let task_inventory = project.read(cx).task_inventory().clone();
1803 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1804 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1805 }));
1806 }
1807 }
1808
1809 let inlay_hint_settings = inlay_hint_settings(
1810 selections.newest_anchor().head(),
1811 &buffer.read(cx).snapshot(cx),
1812 cx,
1813 );
1814 let focus_handle = cx.focus_handle();
1815 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1816 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1817 .detach();
1818 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1819 .detach();
1820 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1821
1822 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1823 Some(false)
1824 } else {
1825 None
1826 };
1827
1828 let mut this = Self {
1829 focus_handle,
1830 show_cursor_when_unfocused: false,
1831 last_focused_descendant: None,
1832 buffer: buffer.clone(),
1833 display_map: display_map.clone(),
1834 selections,
1835 scroll_manager: ScrollManager::new(cx),
1836 columnar_selection_tail: None,
1837 add_selections_state: None,
1838 select_next_state: None,
1839 select_prev_state: None,
1840 selection_history: Default::default(),
1841 autoclose_regions: Default::default(),
1842 snippet_stack: Default::default(),
1843 select_larger_syntax_node_stack: Vec::new(),
1844 ime_transaction: Default::default(),
1845 active_diagnostics: None,
1846 soft_wrap_mode_override,
1847 completion_provider: project.clone().map(|project| Box::new(project) as _),
1848 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1849 project,
1850 blink_manager: blink_manager.clone(),
1851 show_local_selections: true,
1852 mode,
1853 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1854 show_gutter: mode == EditorMode::Full,
1855 show_line_numbers: None,
1856 show_git_diff_gutter: None,
1857 show_code_actions: None,
1858 show_runnables: None,
1859 show_wrap_guides: None,
1860 show_indent_guides,
1861 placeholder_text: None,
1862 highlight_order: 0,
1863 highlighted_rows: HashMap::default(),
1864 background_highlights: Default::default(),
1865 gutter_highlights: TreeMap::default(),
1866 scrollbar_marker_state: ScrollbarMarkerState::default(),
1867 active_indent_guides_state: ActiveIndentGuidesState::default(),
1868 nav_history: None,
1869 context_menu: RwLock::new(None),
1870 mouse_context_menu: None,
1871 completion_tasks: Default::default(),
1872 signature_help_state: SignatureHelpState::default(),
1873 auto_signature_help: None,
1874 find_all_references_task_sources: Vec::new(),
1875 next_completion_id: 0,
1876 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1877 next_inlay_id: 0,
1878 available_code_actions: Default::default(),
1879 code_actions_task: Default::default(),
1880 document_highlights_task: Default::default(),
1881 linked_editing_range_task: Default::default(),
1882 pending_rename: Default::default(),
1883 searchable: true,
1884 cursor_shape: Default::default(),
1885 current_line_highlight: None,
1886 autoindent_mode: Some(AutoindentMode::EachLine),
1887 collapse_matches: false,
1888 workspace: None,
1889 input_enabled: true,
1890 use_modal_editing: mode == EditorMode::Full,
1891 read_only: false,
1892 use_autoclose: true,
1893 use_auto_surround: true,
1894 auto_replace_emoji_shortcode: false,
1895 leader_peer_id: None,
1896 remote_id: None,
1897 hover_state: Default::default(),
1898 hovered_link_state: Default::default(),
1899 inline_completion_provider: None,
1900 active_inline_completion: None,
1901 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1902 expanded_hunks: ExpandedHunks::default(),
1903 gutter_hovered: false,
1904 pixel_position_of_newest_cursor: None,
1905 last_bounds: None,
1906 expect_bounds_change: None,
1907 gutter_dimensions: GutterDimensions::default(),
1908 style: None,
1909 show_cursor_names: false,
1910 hovered_cursors: Default::default(),
1911 next_editor_action_id: EditorActionId::default(),
1912 editor_actions: Rc::default(),
1913 show_inline_completions: mode == EditorMode::Full,
1914 custom_context_menu: None,
1915 show_git_blame_gutter: false,
1916 show_git_blame_inline: false,
1917 show_selection_menu: None,
1918 show_git_blame_inline_delay_task: None,
1919 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1920 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1921 .session
1922 .restore_unsaved_buffers,
1923 blame: None,
1924 blame_subscription: None,
1925 file_header_size,
1926 tasks: Default::default(),
1927 _subscriptions: vec![
1928 cx.observe(&buffer, Self::on_buffer_changed),
1929 cx.subscribe(&buffer, Self::on_buffer_event),
1930 cx.observe(&display_map, Self::on_display_map_changed),
1931 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1932 cx.observe_global::<SettingsStore>(Self::settings_changed),
1933 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1934 cx.observe_window_activation(|editor, cx| {
1935 let active = cx.is_window_active();
1936 editor.blink_manager.update(cx, |blink_manager, cx| {
1937 if active {
1938 blink_manager.enable(cx);
1939 } else {
1940 blink_manager.disable(cx);
1941 }
1942 });
1943 }),
1944 ],
1945 tasks_update_task: None,
1946 linked_edit_ranges: Default::default(),
1947 previous_search_ranges: None,
1948 breadcrumb_header: None,
1949 focused_block: None,
1950 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
1951 addons: HashMap::default(),
1952 _scroll_cursor_center_top_bottom_task: Task::ready(()),
1953 };
1954 this.tasks_update_task = Some(this.refresh_runnables(cx));
1955 this._subscriptions.extend(project_subscriptions);
1956
1957 this.end_selection(cx);
1958 this.scroll_manager.show_scrollbar(cx);
1959
1960 if mode == EditorMode::Full {
1961 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1962 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1963
1964 if this.git_blame_inline_enabled {
1965 this.git_blame_inline_enabled = true;
1966 this.start_git_blame_inline(false, cx);
1967 }
1968 }
1969
1970 this.report_editor_event("open", None, cx);
1971 this
1972 }
1973
1974 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
1975 self.mouse_context_menu
1976 .as_ref()
1977 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1978 }
1979
1980 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
1981 let mut key_context = KeyContext::new_with_defaults();
1982 key_context.add("Editor");
1983 let mode = match self.mode {
1984 EditorMode::SingleLine { .. } => "single_line",
1985 EditorMode::AutoHeight { .. } => "auto_height",
1986 EditorMode::Full => "full",
1987 };
1988
1989 if EditorSettings::jupyter_enabled(cx) {
1990 key_context.add("jupyter");
1991 }
1992
1993 key_context.set("mode", mode);
1994 if self.pending_rename.is_some() {
1995 key_context.add("renaming");
1996 }
1997 if self.context_menu_visible() {
1998 match self.context_menu.read().as_ref() {
1999 Some(ContextMenu::Completions(_)) => {
2000 key_context.add("menu");
2001 key_context.add("showing_completions")
2002 }
2003 Some(ContextMenu::CodeActions(_)) => {
2004 key_context.add("menu");
2005 key_context.add("showing_code_actions")
2006 }
2007 None => {}
2008 }
2009 }
2010
2011 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2012 if !self.focus_handle(cx).contains_focused(cx)
2013 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2014 {
2015 for addon in self.addons.values() {
2016 addon.extend_key_context(&mut key_context, cx)
2017 }
2018 }
2019
2020 if let Some(extension) = self
2021 .buffer
2022 .read(cx)
2023 .as_singleton()
2024 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2025 {
2026 key_context.set("extension", extension.to_string());
2027 }
2028
2029 if self.has_active_inline_completion(cx) {
2030 key_context.add("copilot_suggestion");
2031 key_context.add("inline_completion");
2032 }
2033
2034 key_context
2035 }
2036
2037 pub fn new_file(
2038 workspace: &mut Workspace,
2039 _: &workspace::NewFile,
2040 cx: &mut ViewContext<Workspace>,
2041 ) {
2042 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2043 "Failed to create buffer",
2044 cx,
2045 |e, _| match e.error_code() {
2046 ErrorCode::RemoteUpgradeRequired => Some(format!(
2047 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2048 e.error_tag("required").unwrap_or("the latest version")
2049 )),
2050 _ => None,
2051 },
2052 );
2053 }
2054
2055 pub fn new_in_workspace(
2056 workspace: &mut Workspace,
2057 cx: &mut ViewContext<Workspace>,
2058 ) -> Task<Result<View<Editor>>> {
2059 let project = workspace.project().clone();
2060 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2061
2062 cx.spawn(|workspace, mut cx| async move {
2063 let buffer = create.await?;
2064 workspace.update(&mut cx, |workspace, cx| {
2065 let editor =
2066 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2067 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2068 editor
2069 })
2070 })
2071 }
2072
2073 fn new_file_vertical(
2074 workspace: &mut Workspace,
2075 _: &workspace::NewFileSplitVertical,
2076 cx: &mut ViewContext<Workspace>,
2077 ) {
2078 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2079 }
2080
2081 fn new_file_horizontal(
2082 workspace: &mut Workspace,
2083 _: &workspace::NewFileSplitHorizontal,
2084 cx: &mut ViewContext<Workspace>,
2085 ) {
2086 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2087 }
2088
2089 fn new_file_in_direction(
2090 workspace: &mut Workspace,
2091 direction: SplitDirection,
2092 cx: &mut ViewContext<Workspace>,
2093 ) {
2094 let project = workspace.project().clone();
2095 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2096
2097 cx.spawn(|workspace, mut cx| async move {
2098 let buffer = create.await?;
2099 workspace.update(&mut cx, move |workspace, cx| {
2100 workspace.split_item(
2101 direction,
2102 Box::new(
2103 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2104 ),
2105 cx,
2106 )
2107 })?;
2108 anyhow::Ok(())
2109 })
2110 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2111 ErrorCode::RemoteUpgradeRequired => Some(format!(
2112 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2113 e.error_tag("required").unwrap_or("the latest version")
2114 )),
2115 _ => None,
2116 });
2117 }
2118
2119 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
2120 self.buffer.read(cx).replica_id()
2121 }
2122
2123 pub fn leader_peer_id(&self) -> Option<PeerId> {
2124 self.leader_peer_id
2125 }
2126
2127 pub fn buffer(&self) -> &Model<MultiBuffer> {
2128 &self.buffer
2129 }
2130
2131 pub fn workspace(&self) -> Option<View<Workspace>> {
2132 self.workspace.as_ref()?.0.upgrade()
2133 }
2134
2135 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2136 self.buffer().read(cx).title(cx)
2137 }
2138
2139 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2140 EditorSnapshot {
2141 mode: self.mode,
2142 show_gutter: self.show_gutter,
2143 show_line_numbers: self.show_line_numbers,
2144 show_git_diff_gutter: self.show_git_diff_gutter,
2145 show_code_actions: self.show_code_actions,
2146 show_runnables: self.show_runnables,
2147 render_git_blame_gutter: self.render_git_blame_gutter(cx),
2148 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2149 scroll_anchor: self.scroll_manager.anchor(),
2150 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2151 placeholder_text: self.placeholder_text.clone(),
2152 is_focused: self.focus_handle.is_focused(cx),
2153 current_line_highlight: self
2154 .current_line_highlight
2155 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2156 gutter_hovered: self.gutter_hovered,
2157 }
2158 }
2159
2160 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2161 self.buffer.read(cx).language_at(point, cx)
2162 }
2163
2164 pub fn file_at<T: ToOffset>(
2165 &self,
2166 point: T,
2167 cx: &AppContext,
2168 ) -> Option<Arc<dyn language::File>> {
2169 self.buffer.read(cx).read(cx).file_at(point).cloned()
2170 }
2171
2172 pub fn active_excerpt(
2173 &self,
2174 cx: &AppContext,
2175 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2176 self.buffer
2177 .read(cx)
2178 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2179 }
2180
2181 pub fn mode(&self) -> EditorMode {
2182 self.mode
2183 }
2184
2185 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2186 self.collaboration_hub.as_deref()
2187 }
2188
2189 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2190 self.collaboration_hub = Some(hub);
2191 }
2192
2193 pub fn set_custom_context_menu(
2194 &mut self,
2195 f: impl 'static
2196 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2197 ) {
2198 self.custom_context_menu = Some(Box::new(f))
2199 }
2200
2201 pub fn set_completion_provider(&mut self, provider: Box<dyn CompletionProvider>) {
2202 self.completion_provider = Some(provider);
2203 }
2204
2205 pub fn set_inline_completion_provider<T>(
2206 &mut self,
2207 provider: Option<Model<T>>,
2208 cx: &mut ViewContext<Self>,
2209 ) where
2210 T: InlineCompletionProvider,
2211 {
2212 self.inline_completion_provider =
2213 provider.map(|provider| RegisteredInlineCompletionProvider {
2214 _subscription: cx.observe(&provider, |this, _, cx| {
2215 if this.focus_handle.is_focused(cx) {
2216 this.update_visible_inline_completion(cx);
2217 }
2218 }),
2219 provider: Arc::new(provider),
2220 });
2221 self.refresh_inline_completion(false, false, cx);
2222 }
2223
2224 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2225 self.placeholder_text.as_deref()
2226 }
2227
2228 pub fn set_placeholder_text(
2229 &mut self,
2230 placeholder_text: impl Into<Arc<str>>,
2231 cx: &mut ViewContext<Self>,
2232 ) {
2233 let placeholder_text = Some(placeholder_text.into());
2234 if self.placeholder_text != placeholder_text {
2235 self.placeholder_text = placeholder_text;
2236 cx.notify();
2237 }
2238 }
2239
2240 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2241 self.cursor_shape = cursor_shape;
2242
2243 // Disrupt blink for immediate user feedback that the cursor shape has changed
2244 self.blink_manager.update(cx, BlinkManager::show_cursor);
2245
2246 cx.notify();
2247 }
2248
2249 pub fn set_current_line_highlight(
2250 &mut self,
2251 current_line_highlight: Option<CurrentLineHighlight>,
2252 ) {
2253 self.current_line_highlight = current_line_highlight;
2254 }
2255
2256 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2257 self.collapse_matches = collapse_matches;
2258 }
2259
2260 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2261 if self.collapse_matches {
2262 return range.start..range.start;
2263 }
2264 range.clone()
2265 }
2266
2267 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2268 if self.display_map.read(cx).clip_at_line_ends != clip {
2269 self.display_map
2270 .update(cx, |map, _| map.clip_at_line_ends = clip);
2271 }
2272 }
2273
2274 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2275 self.input_enabled = input_enabled;
2276 }
2277
2278 pub fn set_autoindent(&mut self, autoindent: bool) {
2279 if autoindent {
2280 self.autoindent_mode = Some(AutoindentMode::EachLine);
2281 } else {
2282 self.autoindent_mode = None;
2283 }
2284 }
2285
2286 pub fn read_only(&self, cx: &AppContext) -> bool {
2287 self.read_only || self.buffer.read(cx).read_only()
2288 }
2289
2290 pub fn set_read_only(&mut self, read_only: bool) {
2291 self.read_only = read_only;
2292 }
2293
2294 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2295 self.use_autoclose = autoclose;
2296 }
2297
2298 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2299 self.use_auto_surround = auto_surround;
2300 }
2301
2302 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2303 self.auto_replace_emoji_shortcode = auto_replace;
2304 }
2305
2306 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
2307 self.show_inline_completions = show_inline_completions;
2308 }
2309
2310 pub fn set_use_modal_editing(&mut self, to: bool) {
2311 self.use_modal_editing = to;
2312 }
2313
2314 pub fn use_modal_editing(&self) -> bool {
2315 self.use_modal_editing
2316 }
2317
2318 fn selections_did_change(
2319 &mut self,
2320 local: bool,
2321 old_cursor_position: &Anchor,
2322 show_completions: bool,
2323 cx: &mut ViewContext<Self>,
2324 ) {
2325 // Copy selections to primary selection buffer
2326 #[cfg(target_os = "linux")]
2327 if local {
2328 let selections = self.selections.all::<usize>(cx);
2329 let buffer_handle = self.buffer.read(cx).read(cx);
2330
2331 let mut text = String::new();
2332 for (index, selection) in selections.iter().enumerate() {
2333 let text_for_selection = buffer_handle
2334 .text_for_range(selection.start..selection.end)
2335 .collect::<String>();
2336
2337 text.push_str(&text_for_selection);
2338 if index != selections.len() - 1 {
2339 text.push('\n');
2340 }
2341 }
2342
2343 if !text.is_empty() {
2344 cx.write_to_primary(ClipboardItem::new_string(text));
2345 }
2346 }
2347
2348 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2349 self.buffer.update(cx, |buffer, cx| {
2350 buffer.set_active_selections(
2351 &self.selections.disjoint_anchors(),
2352 self.selections.line_mode,
2353 self.cursor_shape,
2354 cx,
2355 )
2356 });
2357 }
2358 let display_map = self
2359 .display_map
2360 .update(cx, |display_map, cx| display_map.snapshot(cx));
2361 let buffer = &display_map.buffer_snapshot;
2362 self.add_selections_state = None;
2363 self.select_next_state = None;
2364 self.select_prev_state = None;
2365 self.select_larger_syntax_node_stack.clear();
2366 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2367 self.snippet_stack
2368 .invalidate(&self.selections.disjoint_anchors(), buffer);
2369 self.take_rename(false, cx);
2370
2371 let new_cursor_position = self.selections.newest_anchor().head();
2372
2373 self.push_to_nav_history(
2374 *old_cursor_position,
2375 Some(new_cursor_position.to_point(buffer)),
2376 cx,
2377 );
2378
2379 if local {
2380 let new_cursor_position = self.selections.newest_anchor().head();
2381 let mut context_menu = self.context_menu.write();
2382 let completion_menu = match context_menu.as_ref() {
2383 Some(ContextMenu::Completions(menu)) => Some(menu),
2384
2385 _ => {
2386 *context_menu = None;
2387 None
2388 }
2389 };
2390
2391 if let Some(completion_menu) = completion_menu {
2392 let cursor_position = new_cursor_position.to_offset(buffer);
2393 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
2394 if kind == Some(CharKind::Word)
2395 && word_range.to_inclusive().contains(&cursor_position)
2396 {
2397 let mut completion_menu = completion_menu.clone();
2398 drop(context_menu);
2399
2400 let query = Self::completion_query(buffer, cursor_position);
2401 cx.spawn(move |this, mut cx| async move {
2402 completion_menu
2403 .filter(query.as_deref(), cx.background_executor().clone())
2404 .await;
2405
2406 this.update(&mut cx, |this, cx| {
2407 let mut context_menu = this.context_menu.write();
2408 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2409 return;
2410 };
2411
2412 if menu.id > completion_menu.id {
2413 return;
2414 }
2415
2416 *context_menu = Some(ContextMenu::Completions(completion_menu));
2417 drop(context_menu);
2418 cx.notify();
2419 })
2420 })
2421 .detach();
2422
2423 if show_completions {
2424 self.show_completions(&ShowCompletions { trigger: None }, cx);
2425 }
2426 } else {
2427 drop(context_menu);
2428 self.hide_context_menu(cx);
2429 }
2430 } else {
2431 drop(context_menu);
2432 }
2433
2434 hide_hover(self, cx);
2435
2436 if old_cursor_position.to_display_point(&display_map).row()
2437 != new_cursor_position.to_display_point(&display_map).row()
2438 {
2439 self.available_code_actions.take();
2440 }
2441 self.refresh_code_actions(cx);
2442 self.refresh_document_highlights(cx);
2443 refresh_matching_bracket_highlights(self, cx);
2444 self.discard_inline_completion(false, cx);
2445 linked_editing_ranges::refresh_linked_ranges(self, cx);
2446 if self.git_blame_inline_enabled {
2447 self.start_inline_blame_timer(cx);
2448 }
2449 }
2450
2451 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2452 cx.emit(EditorEvent::SelectionsChanged { local });
2453
2454 if self.selections.disjoint_anchors().len() == 1 {
2455 cx.emit(SearchEvent::ActiveMatchChanged)
2456 }
2457 cx.notify();
2458 }
2459
2460 pub fn change_selections<R>(
2461 &mut self,
2462 autoscroll: Option<Autoscroll>,
2463 cx: &mut ViewContext<Self>,
2464 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2465 ) -> R {
2466 self.change_selections_inner(autoscroll, true, cx, change)
2467 }
2468
2469 pub fn change_selections_inner<R>(
2470 &mut self,
2471 autoscroll: Option<Autoscroll>,
2472 request_completions: bool,
2473 cx: &mut ViewContext<Self>,
2474 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2475 ) -> R {
2476 let old_cursor_position = self.selections.newest_anchor().head();
2477 self.push_to_selection_history();
2478
2479 let (changed, result) = self.selections.change_with(cx, change);
2480
2481 if changed {
2482 if let Some(autoscroll) = autoscroll {
2483 self.request_autoscroll(autoscroll, cx);
2484 }
2485 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2486
2487 if self.should_open_signature_help_automatically(
2488 &old_cursor_position,
2489 self.signature_help_state.backspace_pressed(),
2490 cx,
2491 ) {
2492 self.show_signature_help(&ShowSignatureHelp, cx);
2493 }
2494 self.signature_help_state.set_backspace_pressed(false);
2495 }
2496
2497 result
2498 }
2499
2500 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2501 where
2502 I: IntoIterator<Item = (Range<S>, T)>,
2503 S: ToOffset,
2504 T: Into<Arc<str>>,
2505 {
2506 if self.read_only(cx) {
2507 return;
2508 }
2509
2510 self.buffer
2511 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2512 }
2513
2514 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2515 where
2516 I: IntoIterator<Item = (Range<S>, T)>,
2517 S: ToOffset,
2518 T: Into<Arc<str>>,
2519 {
2520 if self.read_only(cx) {
2521 return;
2522 }
2523
2524 self.buffer.update(cx, |buffer, cx| {
2525 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2526 });
2527 }
2528
2529 pub fn edit_with_block_indent<I, S, T>(
2530 &mut self,
2531 edits: I,
2532 original_indent_columns: Vec<u32>,
2533 cx: &mut ViewContext<Self>,
2534 ) where
2535 I: IntoIterator<Item = (Range<S>, T)>,
2536 S: ToOffset,
2537 T: Into<Arc<str>>,
2538 {
2539 if self.read_only(cx) {
2540 return;
2541 }
2542
2543 self.buffer.update(cx, |buffer, cx| {
2544 buffer.edit(
2545 edits,
2546 Some(AutoindentMode::Block {
2547 original_indent_columns,
2548 }),
2549 cx,
2550 )
2551 });
2552 }
2553
2554 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2555 self.hide_context_menu(cx);
2556
2557 match phase {
2558 SelectPhase::Begin {
2559 position,
2560 add,
2561 click_count,
2562 } => self.begin_selection(position, add, click_count, cx),
2563 SelectPhase::BeginColumnar {
2564 position,
2565 goal_column,
2566 reset,
2567 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2568 SelectPhase::Extend {
2569 position,
2570 click_count,
2571 } => self.extend_selection(position, click_count, cx),
2572 SelectPhase::Update {
2573 position,
2574 goal_column,
2575 scroll_delta,
2576 } => self.update_selection(position, goal_column, scroll_delta, cx),
2577 SelectPhase::End => self.end_selection(cx),
2578 }
2579 }
2580
2581 fn extend_selection(
2582 &mut self,
2583 position: DisplayPoint,
2584 click_count: usize,
2585 cx: &mut ViewContext<Self>,
2586 ) {
2587 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2588 let tail = self.selections.newest::<usize>(cx).tail();
2589 self.begin_selection(position, false, click_count, cx);
2590
2591 let position = position.to_offset(&display_map, Bias::Left);
2592 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2593
2594 let mut pending_selection = self
2595 .selections
2596 .pending_anchor()
2597 .expect("extend_selection not called with pending selection");
2598 if position >= tail {
2599 pending_selection.start = tail_anchor;
2600 } else {
2601 pending_selection.end = tail_anchor;
2602 pending_selection.reversed = true;
2603 }
2604
2605 let mut pending_mode = self.selections.pending_mode().unwrap();
2606 match &mut pending_mode {
2607 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2608 _ => {}
2609 }
2610
2611 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2612 s.set_pending(pending_selection, pending_mode)
2613 });
2614 }
2615
2616 fn begin_selection(
2617 &mut self,
2618 position: DisplayPoint,
2619 add: bool,
2620 click_count: usize,
2621 cx: &mut ViewContext<Self>,
2622 ) {
2623 if !self.focus_handle.is_focused(cx) {
2624 self.last_focused_descendant = None;
2625 cx.focus(&self.focus_handle);
2626 }
2627
2628 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2629 let buffer = &display_map.buffer_snapshot;
2630 let newest_selection = self.selections.newest_anchor().clone();
2631 let position = display_map.clip_point(position, Bias::Left);
2632
2633 let start;
2634 let end;
2635 let mode;
2636 let auto_scroll;
2637 match click_count {
2638 1 => {
2639 start = buffer.anchor_before(position.to_point(&display_map));
2640 end = start;
2641 mode = SelectMode::Character;
2642 auto_scroll = true;
2643 }
2644 2 => {
2645 let range = movement::surrounding_word(&display_map, position);
2646 start = buffer.anchor_before(range.start.to_point(&display_map));
2647 end = buffer.anchor_before(range.end.to_point(&display_map));
2648 mode = SelectMode::Word(start..end);
2649 auto_scroll = true;
2650 }
2651 3 => {
2652 let position = display_map
2653 .clip_point(position, Bias::Left)
2654 .to_point(&display_map);
2655 let line_start = display_map.prev_line_boundary(position).0;
2656 let next_line_start = buffer.clip_point(
2657 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2658 Bias::Left,
2659 );
2660 start = buffer.anchor_before(line_start);
2661 end = buffer.anchor_before(next_line_start);
2662 mode = SelectMode::Line(start..end);
2663 auto_scroll = true;
2664 }
2665 _ => {
2666 start = buffer.anchor_before(0);
2667 end = buffer.anchor_before(buffer.len());
2668 mode = SelectMode::All;
2669 auto_scroll = false;
2670 }
2671 }
2672
2673 let point_to_delete: Option<usize> = {
2674 let selected_points: Vec<Selection<Point>> =
2675 self.selections.disjoint_in_range(start..end, cx);
2676
2677 if !add || click_count > 1 {
2678 None
2679 } else if selected_points.len() > 0 {
2680 Some(selected_points[0].id)
2681 } else {
2682 let clicked_point_already_selected =
2683 self.selections.disjoint.iter().find(|selection| {
2684 selection.start.to_point(buffer) == start.to_point(buffer)
2685 || selection.end.to_point(buffer) == end.to_point(buffer)
2686 });
2687
2688 if let Some(selection) = clicked_point_already_selected {
2689 Some(selection.id)
2690 } else {
2691 None
2692 }
2693 }
2694 };
2695
2696 let selections_count = self.selections.count();
2697
2698 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2699 if let Some(point_to_delete) = point_to_delete {
2700 s.delete(point_to_delete);
2701
2702 if selections_count == 1 {
2703 s.set_pending_anchor_range(start..end, mode);
2704 }
2705 } else {
2706 if !add {
2707 s.clear_disjoint();
2708 } else if click_count > 1 {
2709 s.delete(newest_selection.id)
2710 }
2711
2712 s.set_pending_anchor_range(start..end, mode);
2713 }
2714 });
2715 }
2716
2717 fn begin_columnar_selection(
2718 &mut self,
2719 position: DisplayPoint,
2720 goal_column: u32,
2721 reset: bool,
2722 cx: &mut ViewContext<Self>,
2723 ) {
2724 if !self.focus_handle.is_focused(cx) {
2725 self.last_focused_descendant = None;
2726 cx.focus(&self.focus_handle);
2727 }
2728
2729 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2730
2731 if reset {
2732 let pointer_position = display_map
2733 .buffer_snapshot
2734 .anchor_before(position.to_point(&display_map));
2735
2736 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2737 s.clear_disjoint();
2738 s.set_pending_anchor_range(
2739 pointer_position..pointer_position,
2740 SelectMode::Character,
2741 );
2742 });
2743 }
2744
2745 let tail = self.selections.newest::<Point>(cx).tail();
2746 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2747
2748 if !reset {
2749 self.select_columns(
2750 tail.to_display_point(&display_map),
2751 position,
2752 goal_column,
2753 &display_map,
2754 cx,
2755 );
2756 }
2757 }
2758
2759 fn update_selection(
2760 &mut self,
2761 position: DisplayPoint,
2762 goal_column: u32,
2763 scroll_delta: gpui::Point<f32>,
2764 cx: &mut ViewContext<Self>,
2765 ) {
2766 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2767
2768 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2769 let tail = tail.to_display_point(&display_map);
2770 self.select_columns(tail, position, goal_column, &display_map, cx);
2771 } else if let Some(mut pending) = self.selections.pending_anchor() {
2772 let buffer = self.buffer.read(cx).snapshot(cx);
2773 let head;
2774 let tail;
2775 let mode = self.selections.pending_mode().unwrap();
2776 match &mode {
2777 SelectMode::Character => {
2778 head = position.to_point(&display_map);
2779 tail = pending.tail().to_point(&buffer);
2780 }
2781 SelectMode::Word(original_range) => {
2782 let original_display_range = original_range.start.to_display_point(&display_map)
2783 ..original_range.end.to_display_point(&display_map);
2784 let original_buffer_range = original_display_range.start.to_point(&display_map)
2785 ..original_display_range.end.to_point(&display_map);
2786 if movement::is_inside_word(&display_map, position)
2787 || original_display_range.contains(&position)
2788 {
2789 let word_range = movement::surrounding_word(&display_map, position);
2790 if word_range.start < original_display_range.start {
2791 head = word_range.start.to_point(&display_map);
2792 } else {
2793 head = word_range.end.to_point(&display_map);
2794 }
2795 } else {
2796 head = position.to_point(&display_map);
2797 }
2798
2799 if head <= original_buffer_range.start {
2800 tail = original_buffer_range.end;
2801 } else {
2802 tail = original_buffer_range.start;
2803 }
2804 }
2805 SelectMode::Line(original_range) => {
2806 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2807
2808 let position = display_map
2809 .clip_point(position, Bias::Left)
2810 .to_point(&display_map);
2811 let line_start = display_map.prev_line_boundary(position).0;
2812 let next_line_start = buffer.clip_point(
2813 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2814 Bias::Left,
2815 );
2816
2817 if line_start < original_range.start {
2818 head = line_start
2819 } else {
2820 head = next_line_start
2821 }
2822
2823 if head <= original_range.start {
2824 tail = original_range.end;
2825 } else {
2826 tail = original_range.start;
2827 }
2828 }
2829 SelectMode::All => {
2830 return;
2831 }
2832 };
2833
2834 if head < tail {
2835 pending.start = buffer.anchor_before(head);
2836 pending.end = buffer.anchor_before(tail);
2837 pending.reversed = true;
2838 } else {
2839 pending.start = buffer.anchor_before(tail);
2840 pending.end = buffer.anchor_before(head);
2841 pending.reversed = false;
2842 }
2843
2844 self.change_selections(None, cx, |s| {
2845 s.set_pending(pending, mode);
2846 });
2847 } else {
2848 log::error!("update_selection dispatched with no pending selection");
2849 return;
2850 }
2851
2852 self.apply_scroll_delta(scroll_delta, cx);
2853 cx.notify();
2854 }
2855
2856 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2857 self.columnar_selection_tail.take();
2858 if self.selections.pending_anchor().is_some() {
2859 let selections = self.selections.all::<usize>(cx);
2860 self.change_selections(None, cx, |s| {
2861 s.select(selections);
2862 s.clear_pending();
2863 });
2864 }
2865 }
2866
2867 fn select_columns(
2868 &mut self,
2869 tail: DisplayPoint,
2870 head: DisplayPoint,
2871 goal_column: u32,
2872 display_map: &DisplaySnapshot,
2873 cx: &mut ViewContext<Self>,
2874 ) {
2875 let start_row = cmp::min(tail.row(), head.row());
2876 let end_row = cmp::max(tail.row(), head.row());
2877 let start_column = cmp::min(tail.column(), goal_column);
2878 let end_column = cmp::max(tail.column(), goal_column);
2879 let reversed = start_column < tail.column();
2880
2881 let selection_ranges = (start_row.0..=end_row.0)
2882 .map(DisplayRow)
2883 .filter_map(|row| {
2884 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2885 let start = display_map
2886 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2887 .to_point(display_map);
2888 let end = display_map
2889 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2890 .to_point(display_map);
2891 if reversed {
2892 Some(end..start)
2893 } else {
2894 Some(start..end)
2895 }
2896 } else {
2897 None
2898 }
2899 })
2900 .collect::<Vec<_>>();
2901
2902 self.change_selections(None, cx, |s| {
2903 s.select_ranges(selection_ranges);
2904 });
2905 cx.notify();
2906 }
2907
2908 pub fn has_pending_nonempty_selection(&self) -> bool {
2909 let pending_nonempty_selection = match self.selections.pending_anchor() {
2910 Some(Selection { start, end, .. }) => start != end,
2911 None => false,
2912 };
2913
2914 pending_nonempty_selection
2915 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2916 }
2917
2918 pub fn has_pending_selection(&self) -> bool {
2919 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2920 }
2921
2922 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2923 if self.clear_clicked_diff_hunks(cx) {
2924 cx.notify();
2925 return;
2926 }
2927 if self.dismiss_menus_and_popups(true, cx) {
2928 return;
2929 }
2930
2931 if self.mode == EditorMode::Full {
2932 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2933 return;
2934 }
2935 }
2936
2937 cx.propagate();
2938 }
2939
2940 pub fn dismiss_menus_and_popups(
2941 &mut self,
2942 should_report_inline_completion_event: bool,
2943 cx: &mut ViewContext<Self>,
2944 ) -> bool {
2945 if self.take_rename(false, cx).is_some() {
2946 return true;
2947 }
2948
2949 if hide_hover(self, cx) {
2950 return true;
2951 }
2952
2953 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2954 return true;
2955 }
2956
2957 if self.hide_context_menu(cx).is_some() {
2958 return true;
2959 }
2960
2961 if self.mouse_context_menu.take().is_some() {
2962 return true;
2963 }
2964
2965 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2966 return true;
2967 }
2968
2969 if self.snippet_stack.pop().is_some() {
2970 return true;
2971 }
2972
2973 if self.mode == EditorMode::Full {
2974 if self.active_diagnostics.is_some() {
2975 self.dismiss_diagnostics(cx);
2976 return true;
2977 }
2978 }
2979
2980 false
2981 }
2982
2983 fn linked_editing_ranges_for(
2984 &self,
2985 selection: Range<text::Anchor>,
2986 cx: &AppContext,
2987 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2988 if self.linked_edit_ranges.is_empty() {
2989 return None;
2990 }
2991 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2992 selection.end.buffer_id.and_then(|end_buffer_id| {
2993 if selection.start.buffer_id != Some(end_buffer_id) {
2994 return None;
2995 }
2996 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2997 let snapshot = buffer.read(cx).snapshot();
2998 self.linked_edit_ranges
2999 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3000 .map(|ranges| (ranges, snapshot, buffer))
3001 })?;
3002 use text::ToOffset as TO;
3003 // find offset from the start of current range to current cursor position
3004 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3005
3006 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3007 let start_difference = start_offset - start_byte_offset;
3008 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3009 let end_difference = end_offset - start_byte_offset;
3010 // Current range has associated linked ranges.
3011 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3012 for range in linked_ranges.iter() {
3013 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3014 let end_offset = start_offset + end_difference;
3015 let start_offset = start_offset + start_difference;
3016 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3017 continue;
3018 }
3019 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3020 if s.start.buffer_id != selection.start.buffer_id
3021 || s.end.buffer_id != selection.end.buffer_id
3022 {
3023 return false;
3024 }
3025 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3026 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3027 }) {
3028 continue;
3029 }
3030 let start = buffer_snapshot.anchor_after(start_offset);
3031 let end = buffer_snapshot.anchor_after(end_offset);
3032 linked_edits
3033 .entry(buffer.clone())
3034 .or_default()
3035 .push(start..end);
3036 }
3037 Some(linked_edits)
3038 }
3039
3040 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3041 let text: Arc<str> = text.into();
3042
3043 if self.read_only(cx) {
3044 return;
3045 }
3046
3047 let selections = self.selections.all_adjusted(cx);
3048 let mut bracket_inserted = false;
3049 let mut edits = Vec::new();
3050 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3051 let mut new_selections = Vec::with_capacity(selections.len());
3052 let mut new_autoclose_regions = Vec::new();
3053 let snapshot = self.buffer.read(cx).read(cx);
3054
3055 for (selection, autoclose_region) in
3056 self.selections_with_autoclose_regions(selections, &snapshot)
3057 {
3058 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3059 // Determine if the inserted text matches the opening or closing
3060 // bracket of any of this language's bracket pairs.
3061 let mut bracket_pair = None;
3062 let mut is_bracket_pair_start = false;
3063 let mut is_bracket_pair_end = false;
3064 if !text.is_empty() {
3065 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3066 // and they are removing the character that triggered IME popup.
3067 for (pair, enabled) in scope.brackets() {
3068 if !pair.close && !pair.surround {
3069 continue;
3070 }
3071
3072 if enabled && pair.start.ends_with(text.as_ref()) {
3073 bracket_pair = Some(pair.clone());
3074 is_bracket_pair_start = true;
3075 break;
3076 }
3077 if pair.end.as_str() == text.as_ref() {
3078 bracket_pair = Some(pair.clone());
3079 is_bracket_pair_end = true;
3080 break;
3081 }
3082 }
3083 }
3084
3085 if let Some(bracket_pair) = bracket_pair {
3086 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3087 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3088 let auto_surround =
3089 self.use_auto_surround && snapshot_settings.use_auto_surround;
3090 if selection.is_empty() {
3091 if is_bracket_pair_start {
3092 let prefix_len = bracket_pair.start.len() - text.len();
3093
3094 // If the inserted text is a suffix of an opening bracket and the
3095 // selection is preceded by the rest of the opening bracket, then
3096 // insert the closing bracket.
3097 let following_text_allows_autoclose = snapshot
3098 .chars_at(selection.start)
3099 .next()
3100 .map_or(true, |c| scope.should_autoclose_before(c));
3101 let preceding_text_matches_prefix = prefix_len == 0
3102 || (selection.start.column >= (prefix_len as u32)
3103 && snapshot.contains_str_at(
3104 Point::new(
3105 selection.start.row,
3106 selection.start.column - (prefix_len as u32),
3107 ),
3108 &bracket_pair.start[..prefix_len],
3109 ));
3110
3111 if autoclose
3112 && bracket_pair.close
3113 && following_text_allows_autoclose
3114 && preceding_text_matches_prefix
3115 {
3116 let anchor = snapshot.anchor_before(selection.end);
3117 new_selections.push((selection.map(|_| anchor), text.len()));
3118 new_autoclose_regions.push((
3119 anchor,
3120 text.len(),
3121 selection.id,
3122 bracket_pair.clone(),
3123 ));
3124 edits.push((
3125 selection.range(),
3126 format!("{}{}", text, bracket_pair.end).into(),
3127 ));
3128 bracket_inserted = true;
3129 continue;
3130 }
3131 }
3132
3133 if let Some(region) = autoclose_region {
3134 // If the selection is followed by an auto-inserted closing bracket,
3135 // then don't insert that closing bracket again; just move the selection
3136 // past the closing bracket.
3137 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3138 && text.as_ref() == region.pair.end.as_str();
3139 if should_skip {
3140 let anchor = snapshot.anchor_after(selection.end);
3141 new_selections
3142 .push((selection.map(|_| anchor), region.pair.end.len()));
3143 continue;
3144 }
3145 }
3146
3147 let always_treat_brackets_as_autoclosed = snapshot
3148 .settings_at(selection.start, cx)
3149 .always_treat_brackets_as_autoclosed;
3150 if always_treat_brackets_as_autoclosed
3151 && is_bracket_pair_end
3152 && snapshot.contains_str_at(selection.end, text.as_ref())
3153 {
3154 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3155 // and the inserted text is a closing bracket and the selection is followed
3156 // by the closing bracket then move the selection past the closing bracket.
3157 let anchor = snapshot.anchor_after(selection.end);
3158 new_selections.push((selection.map(|_| anchor), text.len()));
3159 continue;
3160 }
3161 }
3162 // If an opening bracket is 1 character long and is typed while
3163 // text is selected, then surround that text with the bracket pair.
3164 else if auto_surround
3165 && bracket_pair.surround
3166 && is_bracket_pair_start
3167 && bracket_pair.start.chars().count() == 1
3168 {
3169 edits.push((selection.start..selection.start, text.clone()));
3170 edits.push((
3171 selection.end..selection.end,
3172 bracket_pair.end.as_str().into(),
3173 ));
3174 bracket_inserted = true;
3175 new_selections.push((
3176 Selection {
3177 id: selection.id,
3178 start: snapshot.anchor_after(selection.start),
3179 end: snapshot.anchor_before(selection.end),
3180 reversed: selection.reversed,
3181 goal: selection.goal,
3182 },
3183 0,
3184 ));
3185 continue;
3186 }
3187 }
3188 }
3189
3190 if self.auto_replace_emoji_shortcode
3191 && selection.is_empty()
3192 && text.as_ref().ends_with(':')
3193 {
3194 if let Some(possible_emoji_short_code) =
3195 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3196 {
3197 if !possible_emoji_short_code.is_empty() {
3198 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3199 let emoji_shortcode_start = Point::new(
3200 selection.start.row,
3201 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3202 );
3203
3204 // Remove shortcode from buffer
3205 edits.push((
3206 emoji_shortcode_start..selection.start,
3207 "".to_string().into(),
3208 ));
3209 new_selections.push((
3210 Selection {
3211 id: selection.id,
3212 start: snapshot.anchor_after(emoji_shortcode_start),
3213 end: snapshot.anchor_before(selection.start),
3214 reversed: selection.reversed,
3215 goal: selection.goal,
3216 },
3217 0,
3218 ));
3219
3220 // Insert emoji
3221 let selection_start_anchor = snapshot.anchor_after(selection.start);
3222 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3223 edits.push((selection.start..selection.end, emoji.to_string().into()));
3224
3225 continue;
3226 }
3227 }
3228 }
3229 }
3230
3231 // If not handling any auto-close operation, then just replace the selected
3232 // text with the given input and move the selection to the end of the
3233 // newly inserted text.
3234 let anchor = snapshot.anchor_after(selection.end);
3235 if !self.linked_edit_ranges.is_empty() {
3236 let start_anchor = snapshot.anchor_before(selection.start);
3237
3238 let is_word_char = text.chars().next().map_or(true, |char| {
3239 let scope = snapshot.language_scope_at(start_anchor.to_offset(&snapshot));
3240 let kind = char_kind(&scope, char);
3241
3242 kind == CharKind::Word
3243 });
3244
3245 if is_word_char {
3246 if let Some(ranges) = self
3247 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3248 {
3249 for (buffer, edits) in ranges {
3250 linked_edits
3251 .entry(buffer.clone())
3252 .or_default()
3253 .extend(edits.into_iter().map(|range| (range, text.clone())));
3254 }
3255 }
3256 }
3257 }
3258
3259 new_selections.push((selection.map(|_| anchor), 0));
3260 edits.push((selection.start..selection.end, text.clone()));
3261 }
3262
3263 drop(snapshot);
3264
3265 self.transact(cx, |this, cx| {
3266 this.buffer.update(cx, |buffer, cx| {
3267 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3268 });
3269 for (buffer, edits) in linked_edits {
3270 buffer.update(cx, |buffer, cx| {
3271 let snapshot = buffer.snapshot();
3272 let edits = edits
3273 .into_iter()
3274 .map(|(range, text)| {
3275 use text::ToPoint as TP;
3276 let end_point = TP::to_point(&range.end, &snapshot);
3277 let start_point = TP::to_point(&range.start, &snapshot);
3278 (start_point..end_point, text)
3279 })
3280 .sorted_by_key(|(range, _)| range.start)
3281 .collect::<Vec<_>>();
3282 buffer.edit(edits, None, cx);
3283 })
3284 }
3285 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3286 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3287 let snapshot = this.buffer.read(cx).read(cx);
3288 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
3289 .zip(new_selection_deltas)
3290 .map(|(selection, delta)| Selection {
3291 id: selection.id,
3292 start: selection.start + delta,
3293 end: selection.end + delta,
3294 reversed: selection.reversed,
3295 goal: SelectionGoal::None,
3296 })
3297 .collect::<Vec<_>>();
3298
3299 let mut i = 0;
3300 for (position, delta, selection_id, pair) in new_autoclose_regions {
3301 let position = position.to_offset(&snapshot) + delta;
3302 let start = snapshot.anchor_before(position);
3303 let end = snapshot.anchor_after(position);
3304 while let Some(existing_state) = this.autoclose_regions.get(i) {
3305 match existing_state.range.start.cmp(&start, &snapshot) {
3306 Ordering::Less => i += 1,
3307 Ordering::Greater => break,
3308 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
3309 Ordering::Less => i += 1,
3310 Ordering::Equal => break,
3311 Ordering::Greater => break,
3312 },
3313 }
3314 }
3315 this.autoclose_regions.insert(
3316 i,
3317 AutocloseRegion {
3318 selection_id,
3319 range: start..end,
3320 pair,
3321 },
3322 );
3323 }
3324
3325 drop(snapshot);
3326 let had_active_inline_completion = this.has_active_inline_completion(cx);
3327 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3328 s.select(new_selections)
3329 });
3330
3331 if !bracket_inserted && EditorSettings::get_global(cx).use_on_type_format {
3332 if let Some(on_type_format_task) =
3333 this.trigger_on_type_formatting(text.to_string(), cx)
3334 {
3335 on_type_format_task.detach_and_log_err(cx);
3336 }
3337 }
3338
3339 let editor_settings = EditorSettings::get_global(cx);
3340 if bracket_inserted
3341 && (editor_settings.auto_signature_help
3342 || editor_settings.show_signature_help_after_edits)
3343 {
3344 this.show_signature_help(&ShowSignatureHelp, cx);
3345 }
3346
3347 let trigger_in_words = !had_active_inline_completion;
3348 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3349 linked_editing_ranges::refresh_linked_ranges(this, cx);
3350 this.refresh_inline_completion(true, false, cx);
3351 });
3352 }
3353
3354 fn find_possible_emoji_shortcode_at_position(
3355 snapshot: &MultiBufferSnapshot,
3356 position: Point,
3357 ) -> Option<String> {
3358 let mut chars = Vec::new();
3359 let mut found_colon = false;
3360 for char in snapshot.reversed_chars_at(position).take(100) {
3361 // Found a possible emoji shortcode in the middle of the buffer
3362 if found_colon {
3363 if char.is_whitespace() {
3364 chars.reverse();
3365 return Some(chars.iter().collect());
3366 }
3367 // If the previous character is not a whitespace, we are in the middle of a word
3368 // and we only want to complete the shortcode if the word is made up of other emojis
3369 let mut containing_word = String::new();
3370 for ch in snapshot
3371 .reversed_chars_at(position)
3372 .skip(chars.len() + 1)
3373 .take(100)
3374 {
3375 if ch.is_whitespace() {
3376 break;
3377 }
3378 containing_word.push(ch);
3379 }
3380 let containing_word = containing_word.chars().rev().collect::<String>();
3381 if util::word_consists_of_emojis(containing_word.as_str()) {
3382 chars.reverse();
3383 return Some(chars.iter().collect());
3384 }
3385 }
3386
3387 if char.is_whitespace() || !char.is_ascii() {
3388 return None;
3389 }
3390 if char == ':' {
3391 found_colon = true;
3392 } else {
3393 chars.push(char);
3394 }
3395 }
3396 // Found a possible emoji shortcode at the beginning of the buffer
3397 chars.reverse();
3398 Some(chars.iter().collect())
3399 }
3400
3401 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3402 self.transact(cx, |this, cx| {
3403 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3404 let selections = this.selections.all::<usize>(cx);
3405 let multi_buffer = this.buffer.read(cx);
3406 let buffer = multi_buffer.snapshot(cx);
3407 selections
3408 .iter()
3409 .map(|selection| {
3410 let start_point = selection.start.to_point(&buffer);
3411 let mut indent =
3412 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3413 indent.len = cmp::min(indent.len, start_point.column);
3414 let start = selection.start;
3415 let end = selection.end;
3416 let selection_is_empty = start == end;
3417 let language_scope = buffer.language_scope_at(start);
3418 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3419 &language_scope
3420 {
3421 let leading_whitespace_len = buffer
3422 .reversed_chars_at(start)
3423 .take_while(|c| c.is_whitespace() && *c != '\n')
3424 .map(|c| c.len_utf8())
3425 .sum::<usize>();
3426
3427 let trailing_whitespace_len = buffer
3428 .chars_at(end)
3429 .take_while(|c| c.is_whitespace() && *c != '\n')
3430 .map(|c| c.len_utf8())
3431 .sum::<usize>();
3432
3433 let insert_extra_newline =
3434 language.brackets().any(|(pair, enabled)| {
3435 let pair_start = pair.start.trim_end();
3436 let pair_end = pair.end.trim_start();
3437
3438 enabled
3439 && pair.newline
3440 && buffer.contains_str_at(
3441 end + trailing_whitespace_len,
3442 pair_end,
3443 )
3444 && buffer.contains_str_at(
3445 (start - leading_whitespace_len)
3446 .saturating_sub(pair_start.len()),
3447 pair_start,
3448 )
3449 });
3450
3451 // Comment extension on newline is allowed only for cursor selections
3452 let comment_delimiter = maybe!({
3453 if !selection_is_empty {
3454 return None;
3455 }
3456
3457 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3458 return None;
3459 }
3460
3461 let delimiters = language.line_comment_prefixes();
3462 let max_len_of_delimiter =
3463 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3464 let (snapshot, range) =
3465 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3466
3467 let mut index_of_first_non_whitespace = 0;
3468 let comment_candidate = snapshot
3469 .chars_for_range(range)
3470 .skip_while(|c| {
3471 let should_skip = c.is_whitespace();
3472 if should_skip {
3473 index_of_first_non_whitespace += 1;
3474 }
3475 should_skip
3476 })
3477 .take(max_len_of_delimiter)
3478 .collect::<String>();
3479 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3480 comment_candidate.starts_with(comment_prefix.as_ref())
3481 })?;
3482 let cursor_is_placed_after_comment_marker =
3483 index_of_first_non_whitespace + comment_prefix.len()
3484 <= start_point.column as usize;
3485 if cursor_is_placed_after_comment_marker {
3486 Some(comment_prefix.clone())
3487 } else {
3488 None
3489 }
3490 });
3491 (comment_delimiter, insert_extra_newline)
3492 } else {
3493 (None, false)
3494 };
3495
3496 let capacity_for_delimiter = comment_delimiter
3497 .as_deref()
3498 .map(str::len)
3499 .unwrap_or_default();
3500 let mut new_text =
3501 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3502 new_text.push_str("\n");
3503 new_text.extend(indent.chars());
3504 if let Some(delimiter) = &comment_delimiter {
3505 new_text.push_str(&delimiter);
3506 }
3507 if insert_extra_newline {
3508 new_text = new_text.repeat(2);
3509 }
3510
3511 let anchor = buffer.anchor_after(end);
3512 let new_selection = selection.map(|_| anchor);
3513 (
3514 (start..end, new_text),
3515 (insert_extra_newline, new_selection),
3516 )
3517 })
3518 .unzip()
3519 };
3520
3521 this.edit_with_autoindent(edits, cx);
3522 let buffer = this.buffer.read(cx).snapshot(cx);
3523 let new_selections = selection_fixup_info
3524 .into_iter()
3525 .map(|(extra_newline_inserted, new_selection)| {
3526 let mut cursor = new_selection.end.to_point(&buffer);
3527 if extra_newline_inserted {
3528 cursor.row -= 1;
3529 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3530 }
3531 new_selection.map(|_| cursor)
3532 })
3533 .collect();
3534
3535 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3536 this.refresh_inline_completion(true, false, cx);
3537 });
3538 }
3539
3540 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3541 let buffer = self.buffer.read(cx);
3542 let snapshot = buffer.snapshot(cx);
3543
3544 let mut edits = Vec::new();
3545 let mut rows = Vec::new();
3546
3547 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3548 let cursor = selection.head();
3549 let row = cursor.row;
3550
3551 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3552
3553 let newline = "\n".to_string();
3554 edits.push((start_of_line..start_of_line, newline));
3555
3556 rows.push(row + rows_inserted as u32);
3557 }
3558
3559 self.transact(cx, |editor, cx| {
3560 editor.edit(edits, cx);
3561
3562 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3563 let mut index = 0;
3564 s.move_cursors_with(|map, _, _| {
3565 let row = rows[index];
3566 index += 1;
3567
3568 let point = Point::new(row, 0);
3569 let boundary = map.next_line_boundary(point).1;
3570 let clipped = map.clip_point(boundary, Bias::Left);
3571
3572 (clipped, SelectionGoal::None)
3573 });
3574 });
3575
3576 let mut indent_edits = Vec::new();
3577 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3578 for row in rows {
3579 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3580 for (row, indent) in indents {
3581 if indent.len == 0 {
3582 continue;
3583 }
3584
3585 let text = match indent.kind {
3586 IndentKind::Space => " ".repeat(indent.len as usize),
3587 IndentKind::Tab => "\t".repeat(indent.len as usize),
3588 };
3589 let point = Point::new(row.0, 0);
3590 indent_edits.push((point..point, text));
3591 }
3592 }
3593 editor.edit(indent_edits, cx);
3594 });
3595 }
3596
3597 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3598 let buffer = self.buffer.read(cx);
3599 let snapshot = buffer.snapshot(cx);
3600
3601 let mut edits = Vec::new();
3602 let mut rows = Vec::new();
3603 let mut rows_inserted = 0;
3604
3605 for selection in self.selections.all_adjusted(cx) {
3606 let cursor = selection.head();
3607 let row = cursor.row;
3608
3609 let point = Point::new(row + 1, 0);
3610 let start_of_line = snapshot.clip_point(point, Bias::Left);
3611
3612 let newline = "\n".to_string();
3613 edits.push((start_of_line..start_of_line, newline));
3614
3615 rows_inserted += 1;
3616 rows.push(row + rows_inserted);
3617 }
3618
3619 self.transact(cx, |editor, cx| {
3620 editor.edit(edits, cx);
3621
3622 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3623 let mut index = 0;
3624 s.move_cursors_with(|map, _, _| {
3625 let row = rows[index];
3626 index += 1;
3627
3628 let point = Point::new(row, 0);
3629 let boundary = map.next_line_boundary(point).1;
3630 let clipped = map.clip_point(boundary, Bias::Left);
3631
3632 (clipped, SelectionGoal::None)
3633 });
3634 });
3635
3636 let mut indent_edits = Vec::new();
3637 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3638 for row in rows {
3639 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3640 for (row, indent) in indents {
3641 if indent.len == 0 {
3642 continue;
3643 }
3644
3645 let text = match indent.kind {
3646 IndentKind::Space => " ".repeat(indent.len as usize),
3647 IndentKind::Tab => "\t".repeat(indent.len as usize),
3648 };
3649 let point = Point::new(row.0, 0);
3650 indent_edits.push((point..point, text));
3651 }
3652 }
3653 editor.edit(indent_edits, cx);
3654 });
3655 }
3656
3657 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3658 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3659 original_indent_columns: Vec::new(),
3660 });
3661 self.insert_with_autoindent_mode(text, autoindent, cx);
3662 }
3663
3664 fn insert_with_autoindent_mode(
3665 &mut self,
3666 text: &str,
3667 autoindent_mode: Option<AutoindentMode>,
3668 cx: &mut ViewContext<Self>,
3669 ) {
3670 if self.read_only(cx) {
3671 return;
3672 }
3673
3674 let text: Arc<str> = text.into();
3675 self.transact(cx, |this, cx| {
3676 let old_selections = this.selections.all_adjusted(cx);
3677 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3678 let anchors = {
3679 let snapshot = buffer.read(cx);
3680 old_selections
3681 .iter()
3682 .map(|s| {
3683 let anchor = snapshot.anchor_after(s.head());
3684 s.map(|_| anchor)
3685 })
3686 .collect::<Vec<_>>()
3687 };
3688 buffer.edit(
3689 old_selections
3690 .iter()
3691 .map(|s| (s.start..s.end, text.clone())),
3692 autoindent_mode,
3693 cx,
3694 );
3695 anchors
3696 });
3697
3698 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3699 s.select_anchors(selection_anchors);
3700 })
3701 });
3702 }
3703
3704 fn trigger_completion_on_input(
3705 &mut self,
3706 text: &str,
3707 trigger_in_words: bool,
3708 cx: &mut ViewContext<Self>,
3709 ) {
3710 if self.is_completion_trigger(text, trigger_in_words, cx) {
3711 self.show_completions(
3712 &ShowCompletions {
3713 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3714 },
3715 cx,
3716 );
3717 } else {
3718 self.hide_context_menu(cx);
3719 }
3720 }
3721
3722 fn is_completion_trigger(
3723 &self,
3724 text: &str,
3725 trigger_in_words: bool,
3726 cx: &mut ViewContext<Self>,
3727 ) -> bool {
3728 let position = self.selections.newest_anchor().head();
3729 let multibuffer = self.buffer.read(cx);
3730 let Some(buffer) = position
3731 .buffer_id
3732 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3733 else {
3734 return false;
3735 };
3736
3737 if let Some(completion_provider) = &self.completion_provider {
3738 completion_provider.is_completion_trigger(
3739 &buffer,
3740 position.text_anchor,
3741 text,
3742 trigger_in_words,
3743 cx,
3744 )
3745 } else {
3746 false
3747 }
3748 }
3749
3750 /// If any empty selections is touching the start of its innermost containing autoclose
3751 /// region, expand it to select the brackets.
3752 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3753 let selections = self.selections.all::<usize>(cx);
3754 let buffer = self.buffer.read(cx).read(cx);
3755 let new_selections = self
3756 .selections_with_autoclose_regions(selections, &buffer)
3757 .map(|(mut selection, region)| {
3758 if !selection.is_empty() {
3759 return selection;
3760 }
3761
3762 if let Some(region) = region {
3763 let mut range = region.range.to_offset(&buffer);
3764 if selection.start == range.start && range.start >= region.pair.start.len() {
3765 range.start -= region.pair.start.len();
3766 if buffer.contains_str_at(range.start, ®ion.pair.start)
3767 && buffer.contains_str_at(range.end, ®ion.pair.end)
3768 {
3769 range.end += region.pair.end.len();
3770 selection.start = range.start;
3771 selection.end = range.end;
3772
3773 return selection;
3774 }
3775 }
3776 }
3777
3778 let always_treat_brackets_as_autoclosed = buffer
3779 .settings_at(selection.start, cx)
3780 .always_treat_brackets_as_autoclosed;
3781
3782 if !always_treat_brackets_as_autoclosed {
3783 return selection;
3784 }
3785
3786 if let Some(scope) = buffer.language_scope_at(selection.start) {
3787 for (pair, enabled) in scope.brackets() {
3788 if !enabled || !pair.close {
3789 continue;
3790 }
3791
3792 if buffer.contains_str_at(selection.start, &pair.end) {
3793 let pair_start_len = pair.start.len();
3794 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3795 {
3796 selection.start -= pair_start_len;
3797 selection.end += pair.end.len();
3798
3799 return selection;
3800 }
3801 }
3802 }
3803 }
3804
3805 selection
3806 })
3807 .collect();
3808
3809 drop(buffer);
3810 self.change_selections(None, cx, |selections| selections.select(new_selections));
3811 }
3812
3813 /// Iterate the given selections, and for each one, find the smallest surrounding
3814 /// autoclose region. This uses the ordering of the selections and the autoclose
3815 /// regions to avoid repeated comparisons.
3816 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3817 &'a self,
3818 selections: impl IntoIterator<Item = Selection<D>>,
3819 buffer: &'a MultiBufferSnapshot,
3820 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3821 let mut i = 0;
3822 let mut regions = self.autoclose_regions.as_slice();
3823 selections.into_iter().map(move |selection| {
3824 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3825
3826 let mut enclosing = None;
3827 while let Some(pair_state) = regions.get(i) {
3828 if pair_state.range.end.to_offset(buffer) < range.start {
3829 regions = ®ions[i + 1..];
3830 i = 0;
3831 } else if pair_state.range.start.to_offset(buffer) > range.end {
3832 break;
3833 } else {
3834 if pair_state.selection_id == selection.id {
3835 enclosing = Some(pair_state);
3836 }
3837 i += 1;
3838 }
3839 }
3840
3841 (selection.clone(), enclosing)
3842 })
3843 }
3844
3845 /// Remove any autoclose regions that no longer contain their selection.
3846 fn invalidate_autoclose_regions(
3847 &mut self,
3848 mut selections: &[Selection<Anchor>],
3849 buffer: &MultiBufferSnapshot,
3850 ) {
3851 self.autoclose_regions.retain(|state| {
3852 let mut i = 0;
3853 while let Some(selection) = selections.get(i) {
3854 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3855 selections = &selections[1..];
3856 continue;
3857 }
3858 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3859 break;
3860 }
3861 if selection.id == state.selection_id {
3862 return true;
3863 } else {
3864 i += 1;
3865 }
3866 }
3867 false
3868 });
3869 }
3870
3871 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3872 let offset = position.to_offset(buffer);
3873 let (word_range, kind) = buffer.surrounding_word(offset);
3874 if offset > word_range.start && kind == Some(CharKind::Word) {
3875 Some(
3876 buffer
3877 .text_for_range(word_range.start..offset)
3878 .collect::<String>(),
3879 )
3880 } else {
3881 None
3882 }
3883 }
3884
3885 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3886 self.refresh_inlay_hints(
3887 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3888 cx,
3889 );
3890 }
3891
3892 pub fn inlay_hints_enabled(&self) -> bool {
3893 self.inlay_hint_cache.enabled
3894 }
3895
3896 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3897 if self.project.is_none() || self.mode != EditorMode::Full {
3898 return;
3899 }
3900
3901 let reason_description = reason.description();
3902 let ignore_debounce = matches!(
3903 reason,
3904 InlayHintRefreshReason::SettingsChange(_)
3905 | InlayHintRefreshReason::Toggle(_)
3906 | InlayHintRefreshReason::ExcerptsRemoved(_)
3907 );
3908 let (invalidate_cache, required_languages) = match reason {
3909 InlayHintRefreshReason::Toggle(enabled) => {
3910 self.inlay_hint_cache.enabled = enabled;
3911 if enabled {
3912 (InvalidationStrategy::RefreshRequested, None)
3913 } else {
3914 self.inlay_hint_cache.clear();
3915 self.splice_inlays(
3916 self.visible_inlay_hints(cx)
3917 .iter()
3918 .map(|inlay| inlay.id)
3919 .collect(),
3920 Vec::new(),
3921 cx,
3922 );
3923 return;
3924 }
3925 }
3926 InlayHintRefreshReason::SettingsChange(new_settings) => {
3927 match self.inlay_hint_cache.update_settings(
3928 &self.buffer,
3929 new_settings,
3930 self.visible_inlay_hints(cx),
3931 cx,
3932 ) {
3933 ControlFlow::Break(Some(InlaySplice {
3934 to_remove,
3935 to_insert,
3936 })) => {
3937 self.splice_inlays(to_remove, to_insert, cx);
3938 return;
3939 }
3940 ControlFlow::Break(None) => return,
3941 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3942 }
3943 }
3944 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3945 if let Some(InlaySplice {
3946 to_remove,
3947 to_insert,
3948 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3949 {
3950 self.splice_inlays(to_remove, to_insert, cx);
3951 }
3952 return;
3953 }
3954 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3955 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3956 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3957 }
3958 InlayHintRefreshReason::RefreshRequested => {
3959 (InvalidationStrategy::RefreshRequested, None)
3960 }
3961 };
3962
3963 if let Some(InlaySplice {
3964 to_remove,
3965 to_insert,
3966 }) = self.inlay_hint_cache.spawn_hint_refresh(
3967 reason_description,
3968 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3969 invalidate_cache,
3970 ignore_debounce,
3971 cx,
3972 ) {
3973 self.splice_inlays(to_remove, to_insert, cx);
3974 }
3975 }
3976
3977 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3978 self.display_map
3979 .read(cx)
3980 .current_inlays()
3981 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3982 .cloned()
3983 .collect()
3984 }
3985
3986 pub fn excerpts_for_inlay_hints_query(
3987 &self,
3988 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3989 cx: &mut ViewContext<Editor>,
3990 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3991 let Some(project) = self.project.as_ref() else {
3992 return HashMap::default();
3993 };
3994 let project = project.read(cx);
3995 let multi_buffer = self.buffer().read(cx);
3996 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3997 let multi_buffer_visible_start = self
3998 .scroll_manager
3999 .anchor()
4000 .anchor
4001 .to_point(&multi_buffer_snapshot);
4002 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4003 multi_buffer_visible_start
4004 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4005 Bias::Left,
4006 );
4007 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4008 multi_buffer
4009 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4010 .into_iter()
4011 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4012 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4013 let buffer = buffer_handle.read(cx);
4014 let buffer_file = project::File::from_dyn(buffer.file())?;
4015 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4016 let worktree_entry = buffer_worktree
4017 .read(cx)
4018 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4019 if worktree_entry.is_ignored {
4020 return None;
4021 }
4022
4023 let language = buffer.language()?;
4024 if let Some(restrict_to_languages) = restrict_to_languages {
4025 if !restrict_to_languages.contains(language) {
4026 return None;
4027 }
4028 }
4029 Some((
4030 excerpt_id,
4031 (
4032 buffer_handle,
4033 buffer.version().clone(),
4034 excerpt_visible_range,
4035 ),
4036 ))
4037 })
4038 .collect()
4039 }
4040
4041 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4042 TextLayoutDetails {
4043 text_system: cx.text_system().clone(),
4044 editor_style: self.style.clone().unwrap(),
4045 rem_size: cx.rem_size(),
4046 scroll_anchor: self.scroll_manager.anchor(),
4047 visible_rows: self.visible_line_count(),
4048 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4049 }
4050 }
4051
4052 fn splice_inlays(
4053 &self,
4054 to_remove: Vec<InlayId>,
4055 to_insert: Vec<Inlay>,
4056 cx: &mut ViewContext<Self>,
4057 ) {
4058 self.display_map.update(cx, |display_map, cx| {
4059 display_map.splice_inlays(to_remove, to_insert, cx);
4060 });
4061 cx.notify();
4062 }
4063
4064 fn trigger_on_type_formatting(
4065 &self,
4066 input: String,
4067 cx: &mut ViewContext<Self>,
4068 ) -> Option<Task<Result<()>>> {
4069 if input.len() != 1 {
4070 return None;
4071 }
4072
4073 let project = self.project.as_ref()?;
4074 let position = self.selections.newest_anchor().head();
4075 let (buffer, buffer_position) = self
4076 .buffer
4077 .read(cx)
4078 .text_anchor_for_position(position, cx)?;
4079
4080 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4081 // hence we do LSP request & edit on host side only — add formats to host's history.
4082 let push_to_lsp_host_history = true;
4083 // If this is not the host, append its history with new edits.
4084 let push_to_client_history = project.read(cx).is_via_collab();
4085
4086 let on_type_formatting = project.update(cx, |project, cx| {
4087 project.on_type_format(
4088 buffer.clone(),
4089 buffer_position,
4090 input,
4091 push_to_lsp_host_history,
4092 cx,
4093 )
4094 });
4095 Some(cx.spawn(|editor, mut cx| async move {
4096 if let Some(transaction) = on_type_formatting.await? {
4097 if push_to_client_history {
4098 buffer
4099 .update(&mut cx, |buffer, _| {
4100 buffer.push_transaction(transaction, Instant::now());
4101 })
4102 .ok();
4103 }
4104 editor.update(&mut cx, |editor, cx| {
4105 editor.refresh_document_highlights(cx);
4106 })?;
4107 }
4108 Ok(())
4109 }))
4110 }
4111
4112 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4113 if self.pending_rename.is_some() {
4114 return;
4115 }
4116
4117 let Some(provider) = self.completion_provider.as_ref() else {
4118 return;
4119 };
4120
4121 let position = self.selections.newest_anchor().head();
4122 let (buffer, buffer_position) =
4123 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4124 output
4125 } else {
4126 return;
4127 };
4128
4129 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4130 let is_followup_invoke = {
4131 let context_menu_state = self.context_menu.read();
4132 matches!(
4133 context_menu_state.deref(),
4134 Some(ContextMenu::Completions(_))
4135 )
4136 };
4137 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4138 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4139 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(&trigger) => {
4140 CompletionTriggerKind::TRIGGER_CHARACTER
4141 }
4142
4143 _ => CompletionTriggerKind::INVOKED,
4144 };
4145 let completion_context = CompletionContext {
4146 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4147 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4148 Some(String::from(trigger))
4149 } else {
4150 None
4151 }
4152 }),
4153 trigger_kind,
4154 };
4155 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4156 let sort_completions = provider.sort_completions();
4157
4158 let id = post_inc(&mut self.next_completion_id);
4159 let task = cx.spawn(|this, mut cx| {
4160 async move {
4161 this.update(&mut cx, |this, _| {
4162 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4163 })?;
4164 let completions = completions.await.log_err();
4165 let menu = if let Some(completions) = completions {
4166 let mut menu = CompletionsMenu {
4167 id,
4168 sort_completions,
4169 initial_position: position,
4170 match_candidates: completions
4171 .iter()
4172 .enumerate()
4173 .map(|(id, completion)| {
4174 StringMatchCandidate::new(
4175 id,
4176 completion.label.text[completion.label.filter_range.clone()]
4177 .into(),
4178 )
4179 })
4180 .collect(),
4181 buffer: buffer.clone(),
4182 completions: Arc::new(RwLock::new(completions.into())),
4183 matches: Vec::new().into(),
4184 selected_item: 0,
4185 scroll_handle: UniformListScrollHandle::new(),
4186 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4187 DebouncedDelay::new(),
4188 )),
4189 };
4190 menu.filter(query.as_deref(), cx.background_executor().clone())
4191 .await;
4192
4193 if menu.matches.is_empty() {
4194 None
4195 } else {
4196 this.update(&mut cx, |editor, cx| {
4197 let completions = menu.completions.clone();
4198 let matches = menu.matches.clone();
4199
4200 let delay_ms = EditorSettings::get_global(cx)
4201 .completion_documentation_secondary_query_debounce;
4202 let delay = Duration::from_millis(delay_ms);
4203 editor
4204 .completion_documentation_pre_resolve_debounce
4205 .fire_new(delay, cx, |editor, cx| {
4206 CompletionsMenu::pre_resolve_completion_documentation(
4207 buffer,
4208 completions,
4209 matches,
4210 editor,
4211 cx,
4212 )
4213 });
4214 })
4215 .ok();
4216 Some(menu)
4217 }
4218 } else {
4219 None
4220 };
4221
4222 this.update(&mut cx, |this, cx| {
4223 let mut context_menu = this.context_menu.write();
4224 match context_menu.as_ref() {
4225 None => {}
4226
4227 Some(ContextMenu::Completions(prev_menu)) => {
4228 if prev_menu.id > id {
4229 return;
4230 }
4231 }
4232
4233 _ => return,
4234 }
4235
4236 if this.focus_handle.is_focused(cx) && menu.is_some() {
4237 let menu = menu.unwrap();
4238 *context_menu = Some(ContextMenu::Completions(menu));
4239 drop(context_menu);
4240 this.discard_inline_completion(false, cx);
4241 cx.notify();
4242 } else if this.completion_tasks.len() <= 1 {
4243 // If there are no more completion tasks and the last menu was
4244 // empty, we should hide it. If it was already hidden, we should
4245 // also show the copilot completion when available.
4246 drop(context_menu);
4247 if this.hide_context_menu(cx).is_none() {
4248 this.update_visible_inline_completion(cx);
4249 }
4250 }
4251 })?;
4252
4253 Ok::<_, anyhow::Error>(())
4254 }
4255 .log_err()
4256 });
4257
4258 self.completion_tasks.push((id, task));
4259 }
4260
4261 pub fn confirm_completion(
4262 &mut self,
4263 action: &ConfirmCompletion,
4264 cx: &mut ViewContext<Self>,
4265 ) -> Option<Task<Result<()>>> {
4266 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4267 }
4268
4269 pub fn compose_completion(
4270 &mut self,
4271 action: &ComposeCompletion,
4272 cx: &mut ViewContext<Self>,
4273 ) -> Option<Task<Result<()>>> {
4274 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4275 }
4276
4277 fn do_completion(
4278 &mut self,
4279 item_ix: Option<usize>,
4280 intent: CompletionIntent,
4281 cx: &mut ViewContext<Editor>,
4282 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4283 use language::ToOffset as _;
4284
4285 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4286 menu
4287 } else {
4288 return None;
4289 };
4290
4291 let mat = completions_menu
4292 .matches
4293 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4294 let buffer_handle = completions_menu.buffer;
4295 let completions = completions_menu.completions.read();
4296 let completion = completions.get(mat.candidate_id)?;
4297 cx.stop_propagation();
4298
4299 let snippet;
4300 let text;
4301
4302 if completion.is_snippet() {
4303 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4304 text = snippet.as_ref().unwrap().text.clone();
4305 } else {
4306 snippet = None;
4307 text = completion.new_text.clone();
4308 };
4309 let selections = self.selections.all::<usize>(cx);
4310 let buffer = buffer_handle.read(cx);
4311 let old_range = completion.old_range.to_offset(buffer);
4312 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4313
4314 let newest_selection = self.selections.newest_anchor();
4315 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4316 return None;
4317 }
4318
4319 let lookbehind = newest_selection
4320 .start
4321 .text_anchor
4322 .to_offset(buffer)
4323 .saturating_sub(old_range.start);
4324 let lookahead = old_range
4325 .end
4326 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4327 let mut common_prefix_len = old_text
4328 .bytes()
4329 .zip(text.bytes())
4330 .take_while(|(a, b)| a == b)
4331 .count();
4332
4333 let snapshot = self.buffer.read(cx).snapshot(cx);
4334 let mut range_to_replace: Option<Range<isize>> = None;
4335 let mut ranges = Vec::new();
4336 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4337 for selection in &selections {
4338 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4339 let start = selection.start.saturating_sub(lookbehind);
4340 let end = selection.end + lookahead;
4341 if selection.id == newest_selection.id {
4342 range_to_replace = Some(
4343 ((start + common_prefix_len) as isize - selection.start as isize)
4344 ..(end as isize - selection.start as isize),
4345 );
4346 }
4347 ranges.push(start + common_prefix_len..end);
4348 } else {
4349 common_prefix_len = 0;
4350 ranges.clear();
4351 ranges.extend(selections.iter().map(|s| {
4352 if s.id == newest_selection.id {
4353 range_to_replace = Some(
4354 old_range.start.to_offset_utf16(&snapshot).0 as isize
4355 - selection.start as isize
4356 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4357 - selection.start as isize,
4358 );
4359 old_range.clone()
4360 } else {
4361 s.start..s.end
4362 }
4363 }));
4364 break;
4365 }
4366 if !self.linked_edit_ranges.is_empty() {
4367 let start_anchor = snapshot.anchor_before(selection.head());
4368 let end_anchor = snapshot.anchor_after(selection.tail());
4369 if let Some(ranges) = self
4370 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4371 {
4372 for (buffer, edits) in ranges {
4373 linked_edits.entry(buffer.clone()).or_default().extend(
4374 edits
4375 .into_iter()
4376 .map(|range| (range, text[common_prefix_len..].to_owned())),
4377 );
4378 }
4379 }
4380 }
4381 }
4382 let text = &text[common_prefix_len..];
4383
4384 cx.emit(EditorEvent::InputHandled {
4385 utf16_range_to_replace: range_to_replace,
4386 text: text.into(),
4387 });
4388
4389 self.transact(cx, |this, cx| {
4390 if let Some(mut snippet) = snippet {
4391 snippet.text = text.to_string();
4392 for tabstop in snippet.tabstops.iter_mut().flatten() {
4393 tabstop.start -= common_prefix_len as isize;
4394 tabstop.end -= common_prefix_len as isize;
4395 }
4396
4397 this.insert_snippet(&ranges, snippet, cx).log_err();
4398 } else {
4399 this.buffer.update(cx, |buffer, cx| {
4400 buffer.edit(
4401 ranges.iter().map(|range| (range.clone(), text)),
4402 this.autoindent_mode.clone(),
4403 cx,
4404 );
4405 });
4406 }
4407 for (buffer, edits) in linked_edits {
4408 buffer.update(cx, |buffer, cx| {
4409 let snapshot = buffer.snapshot();
4410 let edits = edits
4411 .into_iter()
4412 .map(|(range, text)| {
4413 use text::ToPoint as TP;
4414 let end_point = TP::to_point(&range.end, &snapshot);
4415 let start_point = TP::to_point(&range.start, &snapshot);
4416 (start_point..end_point, text)
4417 })
4418 .sorted_by_key(|(range, _)| range.start)
4419 .collect::<Vec<_>>();
4420 buffer.edit(edits, None, cx);
4421 })
4422 }
4423
4424 this.refresh_inline_completion(true, false, cx);
4425 });
4426
4427 let show_new_completions_on_confirm = completion
4428 .confirm
4429 .as_ref()
4430 .map_or(false, |confirm| confirm(intent, cx));
4431 if show_new_completions_on_confirm {
4432 self.show_completions(&ShowCompletions { trigger: None }, cx);
4433 }
4434
4435 let provider = self.completion_provider.as_ref()?;
4436 let apply_edits = provider.apply_additional_edits_for_completion(
4437 buffer_handle,
4438 completion.clone(),
4439 true,
4440 cx,
4441 );
4442
4443 let editor_settings = EditorSettings::get_global(cx);
4444 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4445 // After the code completion is finished, users often want to know what signatures are needed.
4446 // so we should automatically call signature_help
4447 self.show_signature_help(&ShowSignatureHelp, cx);
4448 }
4449
4450 Some(cx.foreground_executor().spawn(async move {
4451 apply_edits.await?;
4452 Ok(())
4453 }))
4454 }
4455
4456 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4457 let mut context_menu = self.context_menu.write();
4458 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4459 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4460 // Toggle if we're selecting the same one
4461 *context_menu = None;
4462 cx.notify();
4463 return;
4464 } else {
4465 // Otherwise, clear it and start a new one
4466 *context_menu = None;
4467 cx.notify();
4468 }
4469 }
4470 drop(context_menu);
4471 let snapshot = self.snapshot(cx);
4472 let deployed_from_indicator = action.deployed_from_indicator;
4473 let mut task = self.code_actions_task.take();
4474 let action = action.clone();
4475 cx.spawn(|editor, mut cx| async move {
4476 while let Some(prev_task) = task {
4477 prev_task.await;
4478 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4479 }
4480
4481 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4482 if editor.focus_handle.is_focused(cx) {
4483 let multibuffer_point = action
4484 .deployed_from_indicator
4485 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4486 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4487 let (buffer, buffer_row) = snapshot
4488 .buffer_snapshot
4489 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4490 .and_then(|(buffer_snapshot, range)| {
4491 editor
4492 .buffer
4493 .read(cx)
4494 .buffer(buffer_snapshot.remote_id())
4495 .map(|buffer| (buffer, range.start.row))
4496 })?;
4497 let (_, code_actions) = editor
4498 .available_code_actions
4499 .clone()
4500 .and_then(|(location, code_actions)| {
4501 let snapshot = location.buffer.read(cx).snapshot();
4502 let point_range = location.range.to_point(&snapshot);
4503 let point_range = point_range.start.row..=point_range.end.row;
4504 if point_range.contains(&buffer_row) {
4505 Some((location, code_actions))
4506 } else {
4507 None
4508 }
4509 })
4510 .unzip();
4511 let buffer_id = buffer.read(cx).remote_id();
4512 let tasks = editor
4513 .tasks
4514 .get(&(buffer_id, buffer_row))
4515 .map(|t| Arc::new(t.to_owned()));
4516 if tasks.is_none() && code_actions.is_none() {
4517 return None;
4518 }
4519
4520 editor.completion_tasks.clear();
4521 editor.discard_inline_completion(false, cx);
4522 let task_context =
4523 tasks
4524 .as_ref()
4525 .zip(editor.project.clone())
4526 .map(|(tasks, project)| {
4527 let position = Point::new(buffer_row, tasks.column);
4528 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4529 let location = Location {
4530 buffer: buffer.clone(),
4531 range: range_start..range_start,
4532 };
4533 // Fill in the environmental variables from the tree-sitter captures
4534 let mut captured_task_variables = TaskVariables::default();
4535 for (capture_name, value) in tasks.extra_variables.clone() {
4536 captured_task_variables.insert(
4537 task::VariableName::Custom(capture_name.into()),
4538 value.clone(),
4539 );
4540 }
4541 project.update(cx, |project, cx| {
4542 project.task_context_for_location(
4543 captured_task_variables,
4544 location,
4545 cx,
4546 )
4547 })
4548 });
4549
4550 Some(cx.spawn(|editor, mut cx| async move {
4551 let task_context = match task_context {
4552 Some(task_context) => task_context.await,
4553 None => None,
4554 };
4555 let resolved_tasks =
4556 tasks.zip(task_context).map(|(tasks, task_context)| {
4557 Arc::new(ResolvedTasks {
4558 templates: tasks
4559 .templates
4560 .iter()
4561 .filter_map(|(kind, template)| {
4562 template
4563 .resolve_task(&kind.to_id_base(), &task_context)
4564 .map(|task| (kind.clone(), task))
4565 })
4566 .collect(),
4567 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4568 multibuffer_point.row,
4569 tasks.column,
4570 )),
4571 })
4572 });
4573 let spawn_straight_away = resolved_tasks
4574 .as_ref()
4575 .map_or(false, |tasks| tasks.templates.len() == 1)
4576 && code_actions
4577 .as_ref()
4578 .map_or(true, |actions| actions.is_empty());
4579 if let Some(task) = editor
4580 .update(&mut cx, |editor, cx| {
4581 *editor.context_menu.write() =
4582 Some(ContextMenu::CodeActions(CodeActionsMenu {
4583 buffer,
4584 actions: CodeActionContents {
4585 tasks: resolved_tasks,
4586 actions: code_actions,
4587 },
4588 selected_item: Default::default(),
4589 scroll_handle: UniformListScrollHandle::default(),
4590 deployed_from_indicator,
4591 }));
4592 if spawn_straight_away {
4593 if let Some(task) = editor.confirm_code_action(
4594 &ConfirmCodeAction { item_ix: Some(0) },
4595 cx,
4596 ) {
4597 cx.notify();
4598 return task;
4599 }
4600 }
4601 cx.notify();
4602 Task::ready(Ok(()))
4603 })
4604 .ok()
4605 {
4606 task.await
4607 } else {
4608 Ok(())
4609 }
4610 }))
4611 } else {
4612 Some(Task::ready(Ok(())))
4613 }
4614 })?;
4615 if let Some(task) = spawned_test_task {
4616 task.await?;
4617 }
4618
4619 Ok::<_, anyhow::Error>(())
4620 })
4621 .detach_and_log_err(cx);
4622 }
4623
4624 pub fn confirm_code_action(
4625 &mut self,
4626 action: &ConfirmCodeAction,
4627 cx: &mut ViewContext<Self>,
4628 ) -> Option<Task<Result<()>>> {
4629 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4630 menu
4631 } else {
4632 return None;
4633 };
4634 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4635 let action = actions_menu.actions.get(action_ix)?;
4636 let title = action.label();
4637 let buffer = actions_menu.buffer;
4638 let workspace = self.workspace()?;
4639
4640 match action {
4641 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4642 workspace.update(cx, |workspace, cx| {
4643 workspace::tasks::schedule_resolved_task(
4644 workspace,
4645 task_source_kind,
4646 resolved_task,
4647 false,
4648 cx,
4649 );
4650
4651 Some(Task::ready(Ok(())))
4652 })
4653 }
4654 CodeActionsItem::CodeAction(action) => {
4655 let apply_code_actions = workspace
4656 .read(cx)
4657 .project()
4658 .clone()
4659 .update(cx, |project, cx| {
4660 project.apply_code_action(buffer, action, true, cx)
4661 });
4662 let workspace = workspace.downgrade();
4663 Some(cx.spawn(|editor, cx| async move {
4664 let project_transaction = apply_code_actions.await?;
4665 Self::open_project_transaction(
4666 &editor,
4667 workspace,
4668 project_transaction,
4669 title,
4670 cx,
4671 )
4672 .await
4673 }))
4674 }
4675 }
4676 }
4677
4678 pub async fn open_project_transaction(
4679 this: &WeakView<Editor>,
4680 workspace: WeakView<Workspace>,
4681 transaction: ProjectTransaction,
4682 title: String,
4683 mut cx: AsyncWindowContext,
4684 ) -> Result<()> {
4685 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4686
4687 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4688 cx.update(|cx| {
4689 entries.sort_unstable_by_key(|(buffer, _)| {
4690 buffer.read(cx).file().map(|f| f.path().clone())
4691 });
4692 })?;
4693
4694 // If the project transaction's edits are all contained within this editor, then
4695 // avoid opening a new editor to display them.
4696
4697 if let Some((buffer, transaction)) = entries.first() {
4698 if entries.len() == 1 {
4699 let excerpt = this.update(&mut cx, |editor, cx| {
4700 editor
4701 .buffer()
4702 .read(cx)
4703 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4704 })?;
4705 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4706 if excerpted_buffer == *buffer {
4707 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4708 let excerpt_range = excerpt_range.to_offset(buffer);
4709 buffer
4710 .edited_ranges_for_transaction::<usize>(transaction)
4711 .all(|range| {
4712 excerpt_range.start <= range.start
4713 && excerpt_range.end >= range.end
4714 })
4715 })?;
4716
4717 if all_edits_within_excerpt {
4718 return Ok(());
4719 }
4720 }
4721 }
4722 }
4723 } else {
4724 return Ok(());
4725 }
4726
4727 let mut ranges_to_highlight = Vec::new();
4728 let excerpt_buffer = cx.new_model(|cx| {
4729 let mut multibuffer =
4730 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4731 for (buffer_handle, transaction) in &entries {
4732 let buffer = buffer_handle.read(cx);
4733 ranges_to_highlight.extend(
4734 multibuffer.push_excerpts_with_context_lines(
4735 buffer_handle.clone(),
4736 buffer
4737 .edited_ranges_for_transaction::<usize>(transaction)
4738 .collect(),
4739 DEFAULT_MULTIBUFFER_CONTEXT,
4740 cx,
4741 ),
4742 );
4743 }
4744 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4745 multibuffer
4746 })?;
4747
4748 workspace.update(&mut cx, |workspace, cx| {
4749 let project = workspace.project().clone();
4750 let editor =
4751 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4752 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4753 editor.update(cx, |editor, cx| {
4754 editor.highlight_background::<Self>(
4755 &ranges_to_highlight,
4756 |theme| theme.editor_highlighted_line_background,
4757 cx,
4758 );
4759 });
4760 })?;
4761
4762 Ok(())
4763 }
4764
4765 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4766 let project = self.project.clone()?;
4767 let buffer = self.buffer.read(cx);
4768 let newest_selection = self.selections.newest_anchor().clone();
4769 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4770 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4771 if start_buffer != end_buffer {
4772 return None;
4773 }
4774
4775 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4776 cx.background_executor()
4777 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4778 .await;
4779
4780 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4781 project.code_actions(&start_buffer, start..end, cx)
4782 }) {
4783 code_actions.await
4784 } else {
4785 Vec::new()
4786 };
4787
4788 this.update(&mut cx, |this, cx| {
4789 this.available_code_actions = if actions.is_empty() {
4790 None
4791 } else {
4792 Some((
4793 Location {
4794 buffer: start_buffer,
4795 range: start..end,
4796 },
4797 actions.into(),
4798 ))
4799 };
4800 cx.notify();
4801 })
4802 .log_err();
4803 }));
4804 None
4805 }
4806
4807 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4808 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4809 self.show_git_blame_inline = false;
4810
4811 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4812 cx.background_executor().timer(delay).await;
4813
4814 this.update(&mut cx, |this, cx| {
4815 this.show_git_blame_inline = true;
4816 cx.notify();
4817 })
4818 .log_err();
4819 }));
4820 }
4821 }
4822
4823 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4824 if self.pending_rename.is_some() {
4825 return None;
4826 }
4827
4828 let project = self.project.clone()?;
4829 let buffer = self.buffer.read(cx);
4830 let newest_selection = self.selections.newest_anchor().clone();
4831 let cursor_position = newest_selection.head();
4832 let (cursor_buffer, cursor_buffer_position) =
4833 buffer.text_anchor_for_position(cursor_position, cx)?;
4834 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4835 if cursor_buffer != tail_buffer {
4836 return None;
4837 }
4838
4839 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4840 cx.background_executor()
4841 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4842 .await;
4843
4844 let highlights = if let Some(highlights) = project
4845 .update(&mut cx, |project, cx| {
4846 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4847 })
4848 .log_err()
4849 {
4850 highlights.await.log_err()
4851 } else {
4852 None
4853 };
4854
4855 if let Some(highlights) = highlights {
4856 this.update(&mut cx, |this, cx| {
4857 if this.pending_rename.is_some() {
4858 return;
4859 }
4860
4861 let buffer_id = cursor_position.buffer_id;
4862 let buffer = this.buffer.read(cx);
4863 if !buffer
4864 .text_anchor_for_position(cursor_position, cx)
4865 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4866 {
4867 return;
4868 }
4869
4870 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4871 let mut write_ranges = Vec::new();
4872 let mut read_ranges = Vec::new();
4873 for highlight in highlights {
4874 for (excerpt_id, excerpt_range) in
4875 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4876 {
4877 let start = highlight
4878 .range
4879 .start
4880 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4881 let end = highlight
4882 .range
4883 .end
4884 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4885 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4886 continue;
4887 }
4888
4889 let range = Anchor {
4890 buffer_id,
4891 excerpt_id,
4892 text_anchor: start,
4893 }..Anchor {
4894 buffer_id,
4895 excerpt_id,
4896 text_anchor: end,
4897 };
4898 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4899 write_ranges.push(range);
4900 } else {
4901 read_ranges.push(range);
4902 }
4903 }
4904 }
4905
4906 this.highlight_background::<DocumentHighlightRead>(
4907 &read_ranges,
4908 |theme| theme.editor_document_highlight_read_background,
4909 cx,
4910 );
4911 this.highlight_background::<DocumentHighlightWrite>(
4912 &write_ranges,
4913 |theme| theme.editor_document_highlight_write_background,
4914 cx,
4915 );
4916 cx.notify();
4917 })
4918 .log_err();
4919 }
4920 }));
4921 None
4922 }
4923
4924 pub fn refresh_inline_completion(
4925 &mut self,
4926 debounce: bool,
4927 user_requested: bool,
4928 cx: &mut ViewContext<Self>,
4929 ) -> Option<()> {
4930 let provider = self.inline_completion_provider()?;
4931 let cursor = self.selections.newest_anchor().head();
4932 let (buffer, cursor_buffer_position) =
4933 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4934 if !user_requested
4935 && (!self.show_inline_completions
4936 || !provider.is_enabled(&buffer, cursor_buffer_position, cx))
4937 {
4938 self.discard_inline_completion(false, cx);
4939 return None;
4940 }
4941
4942 self.update_visible_inline_completion(cx);
4943 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4944 Some(())
4945 }
4946
4947 fn cycle_inline_completion(
4948 &mut self,
4949 direction: Direction,
4950 cx: &mut ViewContext<Self>,
4951 ) -> Option<()> {
4952 let provider = self.inline_completion_provider()?;
4953 let cursor = self.selections.newest_anchor().head();
4954 let (buffer, cursor_buffer_position) =
4955 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4956 if !self.show_inline_completions
4957 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4958 {
4959 return None;
4960 }
4961
4962 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4963 self.update_visible_inline_completion(cx);
4964
4965 Some(())
4966 }
4967
4968 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4969 if !self.has_active_inline_completion(cx) {
4970 self.refresh_inline_completion(false, true, cx);
4971 return;
4972 }
4973
4974 self.update_visible_inline_completion(cx);
4975 }
4976
4977 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4978 self.show_cursor_names(cx);
4979 }
4980
4981 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4982 self.show_cursor_names = true;
4983 cx.notify();
4984 cx.spawn(|this, mut cx| async move {
4985 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4986 this.update(&mut cx, |this, cx| {
4987 this.show_cursor_names = false;
4988 cx.notify()
4989 })
4990 .ok()
4991 })
4992 .detach();
4993 }
4994
4995 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4996 if self.has_active_inline_completion(cx) {
4997 self.cycle_inline_completion(Direction::Next, cx);
4998 } else {
4999 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5000 if is_copilot_disabled {
5001 cx.propagate();
5002 }
5003 }
5004 }
5005
5006 pub fn previous_inline_completion(
5007 &mut self,
5008 _: &PreviousInlineCompletion,
5009 cx: &mut ViewContext<Self>,
5010 ) {
5011 if self.has_active_inline_completion(cx) {
5012 self.cycle_inline_completion(Direction::Prev, cx);
5013 } else {
5014 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5015 if is_copilot_disabled {
5016 cx.propagate();
5017 }
5018 }
5019 }
5020
5021 pub fn accept_inline_completion(
5022 &mut self,
5023 _: &AcceptInlineCompletion,
5024 cx: &mut ViewContext<Self>,
5025 ) {
5026 let Some((completion, delete_range)) = self.take_active_inline_completion(cx) else {
5027 return;
5028 };
5029 if let Some(provider) = self.inline_completion_provider() {
5030 provider.accept(cx);
5031 }
5032
5033 cx.emit(EditorEvent::InputHandled {
5034 utf16_range_to_replace: None,
5035 text: completion.text.to_string().into(),
5036 });
5037
5038 if let Some(range) = delete_range {
5039 self.change_selections(None, cx, |s| s.select_ranges([range]))
5040 }
5041 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5042 self.refresh_inline_completion(true, true, cx);
5043 cx.notify();
5044 }
5045
5046 pub fn accept_partial_inline_completion(
5047 &mut self,
5048 _: &AcceptPartialInlineCompletion,
5049 cx: &mut ViewContext<Self>,
5050 ) {
5051 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5052 if let Some((completion, delete_range)) = self.take_active_inline_completion(cx) {
5053 let mut partial_completion = completion
5054 .text
5055 .chars()
5056 .by_ref()
5057 .take_while(|c| c.is_alphabetic())
5058 .collect::<String>();
5059 if partial_completion.is_empty() {
5060 partial_completion = completion
5061 .text
5062 .chars()
5063 .by_ref()
5064 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5065 .collect::<String>();
5066 }
5067
5068 cx.emit(EditorEvent::InputHandled {
5069 utf16_range_to_replace: None,
5070 text: partial_completion.clone().into(),
5071 });
5072
5073 if let Some(range) = delete_range {
5074 self.change_selections(None, cx, |s| s.select_ranges([range]))
5075 }
5076 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5077
5078 self.refresh_inline_completion(true, true, cx);
5079 cx.notify();
5080 }
5081 }
5082 }
5083
5084 fn discard_inline_completion(
5085 &mut self,
5086 should_report_inline_completion_event: bool,
5087 cx: &mut ViewContext<Self>,
5088 ) -> bool {
5089 if let Some(provider) = self.inline_completion_provider() {
5090 provider.discard(should_report_inline_completion_event, cx);
5091 }
5092
5093 self.take_active_inline_completion(cx).is_some()
5094 }
5095
5096 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5097 if let Some(completion) = self.active_inline_completion.as_ref() {
5098 let buffer = self.buffer.read(cx).read(cx);
5099 completion.0.position.is_valid(&buffer)
5100 } else {
5101 false
5102 }
5103 }
5104
5105 fn take_active_inline_completion(
5106 &mut self,
5107 cx: &mut ViewContext<Self>,
5108 ) -> Option<(Inlay, Option<Range<Anchor>>)> {
5109 let completion = self.active_inline_completion.take()?;
5110 self.display_map.update(cx, |map, cx| {
5111 map.splice_inlays(vec![completion.0.id], Default::default(), cx);
5112 });
5113 let buffer = self.buffer.read(cx).read(cx);
5114
5115 if completion.0.position.is_valid(&buffer) {
5116 Some(completion)
5117 } else {
5118 None
5119 }
5120 }
5121
5122 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5123 let selection = self.selections.newest_anchor();
5124 let cursor = selection.head();
5125
5126 let excerpt_id = cursor.excerpt_id;
5127
5128 if self.context_menu.read().is_none()
5129 && self.completion_tasks.is_empty()
5130 && selection.start == selection.end
5131 {
5132 if let Some(provider) = self.inline_completion_provider() {
5133 if let Some((buffer, cursor_buffer_position)) =
5134 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5135 {
5136 if let Some((text, text_anchor_range)) =
5137 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5138 {
5139 let text = Rope::from(text);
5140 let mut to_remove = Vec::new();
5141 if let Some(completion) = self.active_inline_completion.take() {
5142 to_remove.push(completion.0.id);
5143 }
5144
5145 let completion_inlay =
5146 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
5147
5148 let multibuffer_anchor_range = text_anchor_range.and_then(|range| {
5149 let snapshot = self.buffer.read(cx).snapshot(cx);
5150 Some(
5151 snapshot.anchor_in_excerpt(excerpt_id, range.start)?
5152 ..snapshot.anchor_in_excerpt(excerpt_id, range.end)?,
5153 )
5154 });
5155 self.active_inline_completion =
5156 Some((completion_inlay.clone(), multibuffer_anchor_range));
5157
5158 self.display_map.update(cx, move |map, cx| {
5159 map.splice_inlays(to_remove, vec![completion_inlay], cx)
5160 });
5161 cx.notify();
5162 return;
5163 }
5164 }
5165 }
5166 }
5167
5168 self.discard_inline_completion(false, cx);
5169 }
5170
5171 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5172 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5173 }
5174
5175 fn render_code_actions_indicator(
5176 &self,
5177 _style: &EditorStyle,
5178 row: DisplayRow,
5179 is_active: bool,
5180 cx: &mut ViewContext<Self>,
5181 ) -> Option<IconButton> {
5182 if self.available_code_actions.is_some() {
5183 Some(
5184 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5185 .shape(ui::IconButtonShape::Square)
5186 .icon_size(IconSize::XSmall)
5187 .icon_color(Color::Muted)
5188 .selected(is_active)
5189 .on_click(cx.listener(move |editor, _e, cx| {
5190 editor.focus(cx);
5191 editor.toggle_code_actions(
5192 &ToggleCodeActions {
5193 deployed_from_indicator: Some(row),
5194 },
5195 cx,
5196 );
5197 })),
5198 )
5199 } else {
5200 None
5201 }
5202 }
5203
5204 fn clear_tasks(&mut self) {
5205 self.tasks.clear()
5206 }
5207
5208 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5209 if let Some(_) = self.tasks.insert(key, value) {
5210 // This case should hopefully be rare, but just in case...
5211 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5212 }
5213 }
5214
5215 fn render_run_indicator(
5216 &self,
5217 _style: &EditorStyle,
5218 is_active: bool,
5219 row: DisplayRow,
5220 cx: &mut ViewContext<Self>,
5221 ) -> IconButton {
5222 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5223 .shape(ui::IconButtonShape::Square)
5224 .icon_size(IconSize::XSmall)
5225 .icon_color(Color::Muted)
5226 .selected(is_active)
5227 .on_click(cx.listener(move |editor, _e, cx| {
5228 editor.focus(cx);
5229 editor.toggle_code_actions(
5230 &ToggleCodeActions {
5231 deployed_from_indicator: Some(row),
5232 },
5233 cx,
5234 );
5235 }))
5236 }
5237
5238 fn close_hunk_diff_button(
5239 &self,
5240 hunk: HoveredHunk,
5241 row: DisplayRow,
5242 cx: &mut ViewContext<Self>,
5243 ) -> IconButton {
5244 IconButton::new(
5245 ("close_hunk_diff_indicator", row.0 as usize),
5246 ui::IconName::Close,
5247 )
5248 .shape(ui::IconButtonShape::Square)
5249 .icon_size(IconSize::XSmall)
5250 .icon_color(Color::Muted)
5251 .tooltip(|cx| Tooltip::for_action("Close hunk diff", &ToggleHunkDiff, cx))
5252 .on_click(cx.listener(move |editor, _e, cx| editor.toggle_hovered_hunk(&hunk, cx)))
5253 }
5254
5255 pub fn context_menu_visible(&self) -> bool {
5256 self.context_menu
5257 .read()
5258 .as_ref()
5259 .map_or(false, |menu| menu.visible())
5260 }
5261
5262 fn render_context_menu(
5263 &self,
5264 cursor_position: DisplayPoint,
5265 style: &EditorStyle,
5266 max_height: Pixels,
5267 cx: &mut ViewContext<Editor>,
5268 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5269 self.context_menu.read().as_ref().map(|menu| {
5270 menu.render(
5271 cursor_position,
5272 style,
5273 max_height,
5274 self.workspace.as_ref().map(|(w, _)| w.clone()),
5275 cx,
5276 )
5277 })
5278 }
5279
5280 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5281 cx.notify();
5282 self.completion_tasks.clear();
5283 let context_menu = self.context_menu.write().take();
5284 if context_menu.is_some() {
5285 self.update_visible_inline_completion(cx);
5286 }
5287 context_menu
5288 }
5289
5290 pub fn insert_snippet(
5291 &mut self,
5292 insertion_ranges: &[Range<usize>],
5293 snippet: Snippet,
5294 cx: &mut ViewContext<Self>,
5295 ) -> Result<()> {
5296 struct Tabstop<T> {
5297 is_end_tabstop: bool,
5298 ranges: Vec<Range<T>>,
5299 }
5300
5301 let tabstops = self.buffer.update(cx, |buffer, cx| {
5302 let snippet_text: Arc<str> = snippet.text.clone().into();
5303 buffer.edit(
5304 insertion_ranges
5305 .iter()
5306 .cloned()
5307 .map(|range| (range, snippet_text.clone())),
5308 Some(AutoindentMode::EachLine),
5309 cx,
5310 );
5311
5312 let snapshot = &*buffer.read(cx);
5313 let snippet = &snippet;
5314 snippet
5315 .tabstops
5316 .iter()
5317 .map(|tabstop| {
5318 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5319 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5320 });
5321 let mut tabstop_ranges = tabstop
5322 .iter()
5323 .flat_map(|tabstop_range| {
5324 let mut delta = 0_isize;
5325 insertion_ranges.iter().map(move |insertion_range| {
5326 let insertion_start = insertion_range.start as isize + delta;
5327 delta +=
5328 snippet.text.len() as isize - insertion_range.len() as isize;
5329
5330 let start = ((insertion_start + tabstop_range.start) as usize)
5331 .min(snapshot.len());
5332 let end = ((insertion_start + tabstop_range.end) as usize)
5333 .min(snapshot.len());
5334 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5335 })
5336 })
5337 .collect::<Vec<_>>();
5338 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5339
5340 Tabstop {
5341 is_end_tabstop,
5342 ranges: tabstop_ranges,
5343 }
5344 })
5345 .collect::<Vec<_>>()
5346 });
5347 if let Some(tabstop) = tabstops.first() {
5348 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5349 s.select_ranges(tabstop.ranges.iter().cloned());
5350 });
5351
5352 // If we're already at the last tabstop and it's at the end of the snippet,
5353 // we're done, we don't need to keep the state around.
5354 if !tabstop.is_end_tabstop {
5355 let ranges = tabstops
5356 .into_iter()
5357 .map(|tabstop| tabstop.ranges)
5358 .collect::<Vec<_>>();
5359 self.snippet_stack.push(SnippetState {
5360 active_index: 0,
5361 ranges,
5362 });
5363 }
5364
5365 // Check whether the just-entered snippet ends with an auto-closable bracket.
5366 if self.autoclose_regions.is_empty() {
5367 let snapshot = self.buffer.read(cx).snapshot(cx);
5368 for selection in &mut self.selections.all::<Point>(cx) {
5369 let selection_head = selection.head();
5370 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5371 continue;
5372 };
5373
5374 let mut bracket_pair = None;
5375 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5376 let prev_chars = snapshot
5377 .reversed_chars_at(selection_head)
5378 .collect::<String>();
5379 for (pair, enabled) in scope.brackets() {
5380 if enabled
5381 && pair.close
5382 && prev_chars.starts_with(pair.start.as_str())
5383 && next_chars.starts_with(pair.end.as_str())
5384 {
5385 bracket_pair = Some(pair.clone());
5386 break;
5387 }
5388 }
5389 if let Some(pair) = bracket_pair {
5390 let start = snapshot.anchor_after(selection_head);
5391 let end = snapshot.anchor_after(selection_head);
5392 self.autoclose_regions.push(AutocloseRegion {
5393 selection_id: selection.id,
5394 range: start..end,
5395 pair,
5396 });
5397 }
5398 }
5399 }
5400 }
5401 Ok(())
5402 }
5403
5404 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5405 self.move_to_snippet_tabstop(Bias::Right, cx)
5406 }
5407
5408 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5409 self.move_to_snippet_tabstop(Bias::Left, cx)
5410 }
5411
5412 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5413 if let Some(mut snippet) = self.snippet_stack.pop() {
5414 match bias {
5415 Bias::Left => {
5416 if snippet.active_index > 0 {
5417 snippet.active_index -= 1;
5418 } else {
5419 self.snippet_stack.push(snippet);
5420 return false;
5421 }
5422 }
5423 Bias::Right => {
5424 if snippet.active_index + 1 < snippet.ranges.len() {
5425 snippet.active_index += 1;
5426 } else {
5427 self.snippet_stack.push(snippet);
5428 return false;
5429 }
5430 }
5431 }
5432 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5433 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5434 s.select_anchor_ranges(current_ranges.iter().cloned())
5435 });
5436 // If snippet state is not at the last tabstop, push it back on the stack
5437 if snippet.active_index + 1 < snippet.ranges.len() {
5438 self.snippet_stack.push(snippet);
5439 }
5440 return true;
5441 }
5442 }
5443
5444 false
5445 }
5446
5447 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5448 self.transact(cx, |this, cx| {
5449 this.select_all(&SelectAll, cx);
5450 this.insert("", cx);
5451 });
5452 }
5453
5454 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5455 self.transact(cx, |this, cx| {
5456 this.select_autoclose_pair(cx);
5457 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5458 if !this.linked_edit_ranges.is_empty() {
5459 let selections = this.selections.all::<MultiBufferPoint>(cx);
5460 let snapshot = this.buffer.read(cx).snapshot(cx);
5461
5462 for selection in selections.iter() {
5463 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5464 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5465 if selection_start.buffer_id != selection_end.buffer_id {
5466 continue;
5467 }
5468 if let Some(ranges) =
5469 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5470 {
5471 for (buffer, entries) in ranges {
5472 linked_ranges.entry(buffer).or_default().extend(entries);
5473 }
5474 }
5475 }
5476 }
5477
5478 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5479 if !this.selections.line_mode {
5480 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5481 for selection in &mut selections {
5482 if selection.is_empty() {
5483 let old_head = selection.head();
5484 let mut new_head =
5485 movement::left(&display_map, old_head.to_display_point(&display_map))
5486 .to_point(&display_map);
5487 if let Some((buffer, line_buffer_range)) = display_map
5488 .buffer_snapshot
5489 .buffer_line_for_row(MultiBufferRow(old_head.row))
5490 {
5491 let indent_size =
5492 buffer.indent_size_for_line(line_buffer_range.start.row);
5493 let indent_len = match indent_size.kind {
5494 IndentKind::Space => {
5495 buffer.settings_at(line_buffer_range.start, cx).tab_size
5496 }
5497 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5498 };
5499 if old_head.column <= indent_size.len && old_head.column > 0 {
5500 let indent_len = indent_len.get();
5501 new_head = cmp::min(
5502 new_head,
5503 MultiBufferPoint::new(
5504 old_head.row,
5505 ((old_head.column - 1) / indent_len) * indent_len,
5506 ),
5507 );
5508 }
5509 }
5510
5511 selection.set_head(new_head, SelectionGoal::None);
5512 }
5513 }
5514 }
5515
5516 this.signature_help_state.set_backspace_pressed(true);
5517 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5518 this.insert("", cx);
5519 let empty_str: Arc<str> = Arc::from("");
5520 for (buffer, edits) in linked_ranges {
5521 let snapshot = buffer.read(cx).snapshot();
5522 use text::ToPoint as TP;
5523
5524 let edits = edits
5525 .into_iter()
5526 .map(|range| {
5527 let end_point = TP::to_point(&range.end, &snapshot);
5528 let mut start_point = TP::to_point(&range.start, &snapshot);
5529
5530 if end_point == start_point {
5531 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5532 .saturating_sub(1);
5533 start_point = TP::to_point(&offset, &snapshot);
5534 };
5535
5536 (start_point..end_point, empty_str.clone())
5537 })
5538 .sorted_by_key(|(range, _)| range.start)
5539 .collect::<Vec<_>>();
5540 buffer.update(cx, |this, cx| {
5541 this.edit(edits, None, cx);
5542 })
5543 }
5544 this.refresh_inline_completion(true, false, cx);
5545 linked_editing_ranges::refresh_linked_ranges(this, cx);
5546 });
5547 }
5548
5549 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5550 self.transact(cx, |this, cx| {
5551 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5552 let line_mode = s.line_mode;
5553 s.move_with(|map, selection| {
5554 if selection.is_empty() && !line_mode {
5555 let cursor = movement::right(map, selection.head());
5556 selection.end = cursor;
5557 selection.reversed = true;
5558 selection.goal = SelectionGoal::None;
5559 }
5560 })
5561 });
5562 this.insert("", cx);
5563 this.refresh_inline_completion(true, false, cx);
5564 });
5565 }
5566
5567 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5568 if self.move_to_prev_snippet_tabstop(cx) {
5569 return;
5570 }
5571
5572 self.outdent(&Outdent, cx);
5573 }
5574
5575 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5576 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5577 return;
5578 }
5579
5580 let mut selections = self.selections.all_adjusted(cx);
5581 let buffer = self.buffer.read(cx);
5582 let snapshot = buffer.snapshot(cx);
5583 let rows_iter = selections.iter().map(|s| s.head().row);
5584 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5585
5586 let mut edits = Vec::new();
5587 let mut prev_edited_row = 0;
5588 let mut row_delta = 0;
5589 for selection in &mut selections {
5590 if selection.start.row != prev_edited_row {
5591 row_delta = 0;
5592 }
5593 prev_edited_row = selection.end.row;
5594
5595 // If the selection is non-empty, then increase the indentation of the selected lines.
5596 if !selection.is_empty() {
5597 row_delta =
5598 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5599 continue;
5600 }
5601
5602 // If the selection is empty and the cursor is in the leading whitespace before the
5603 // suggested indentation, then auto-indent the line.
5604 let cursor = selection.head();
5605 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5606 if let Some(suggested_indent) =
5607 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5608 {
5609 if cursor.column < suggested_indent.len
5610 && cursor.column <= current_indent.len
5611 && current_indent.len <= suggested_indent.len
5612 {
5613 selection.start = Point::new(cursor.row, suggested_indent.len);
5614 selection.end = selection.start;
5615 if row_delta == 0 {
5616 edits.extend(Buffer::edit_for_indent_size_adjustment(
5617 cursor.row,
5618 current_indent,
5619 suggested_indent,
5620 ));
5621 row_delta = suggested_indent.len - current_indent.len;
5622 }
5623 continue;
5624 }
5625 }
5626
5627 // Otherwise, insert a hard or soft tab.
5628 let settings = buffer.settings_at(cursor, cx);
5629 let tab_size = if settings.hard_tabs {
5630 IndentSize::tab()
5631 } else {
5632 let tab_size = settings.tab_size.get();
5633 let char_column = snapshot
5634 .text_for_range(Point::new(cursor.row, 0)..cursor)
5635 .flat_map(str::chars)
5636 .count()
5637 + row_delta as usize;
5638 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5639 IndentSize::spaces(chars_to_next_tab_stop)
5640 };
5641 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5642 selection.end = selection.start;
5643 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5644 row_delta += tab_size.len;
5645 }
5646
5647 self.transact(cx, |this, cx| {
5648 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5649 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5650 this.refresh_inline_completion(true, false, cx);
5651 });
5652 }
5653
5654 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5655 if self.read_only(cx) {
5656 return;
5657 }
5658 let mut selections = self.selections.all::<Point>(cx);
5659 let mut prev_edited_row = 0;
5660 let mut row_delta = 0;
5661 let mut edits = Vec::new();
5662 let buffer = self.buffer.read(cx);
5663 let snapshot = buffer.snapshot(cx);
5664 for selection in &mut selections {
5665 if selection.start.row != prev_edited_row {
5666 row_delta = 0;
5667 }
5668 prev_edited_row = selection.end.row;
5669
5670 row_delta =
5671 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5672 }
5673
5674 self.transact(cx, |this, cx| {
5675 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5676 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5677 });
5678 }
5679
5680 fn indent_selection(
5681 buffer: &MultiBuffer,
5682 snapshot: &MultiBufferSnapshot,
5683 selection: &mut Selection<Point>,
5684 edits: &mut Vec<(Range<Point>, String)>,
5685 delta_for_start_row: u32,
5686 cx: &AppContext,
5687 ) -> u32 {
5688 let settings = buffer.settings_at(selection.start, cx);
5689 let tab_size = settings.tab_size.get();
5690 let indent_kind = if settings.hard_tabs {
5691 IndentKind::Tab
5692 } else {
5693 IndentKind::Space
5694 };
5695 let mut start_row = selection.start.row;
5696 let mut end_row = selection.end.row + 1;
5697
5698 // If a selection ends at the beginning of a line, don't indent
5699 // that last line.
5700 if selection.end.column == 0 && selection.end.row > selection.start.row {
5701 end_row -= 1;
5702 }
5703
5704 // Avoid re-indenting a row that has already been indented by a
5705 // previous selection, but still update this selection's column
5706 // to reflect that indentation.
5707 if delta_for_start_row > 0 {
5708 start_row += 1;
5709 selection.start.column += delta_for_start_row;
5710 if selection.end.row == selection.start.row {
5711 selection.end.column += delta_for_start_row;
5712 }
5713 }
5714
5715 let mut delta_for_end_row = 0;
5716 let has_multiple_rows = start_row + 1 != end_row;
5717 for row in start_row..end_row {
5718 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5719 let indent_delta = match (current_indent.kind, indent_kind) {
5720 (IndentKind::Space, IndentKind::Space) => {
5721 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5722 IndentSize::spaces(columns_to_next_tab_stop)
5723 }
5724 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5725 (_, IndentKind::Tab) => IndentSize::tab(),
5726 };
5727
5728 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5729 0
5730 } else {
5731 selection.start.column
5732 };
5733 let row_start = Point::new(row, start);
5734 edits.push((
5735 row_start..row_start,
5736 indent_delta.chars().collect::<String>(),
5737 ));
5738
5739 // Update this selection's endpoints to reflect the indentation.
5740 if row == selection.start.row {
5741 selection.start.column += indent_delta.len;
5742 }
5743 if row == selection.end.row {
5744 selection.end.column += indent_delta.len;
5745 delta_for_end_row = indent_delta.len;
5746 }
5747 }
5748
5749 if selection.start.row == selection.end.row {
5750 delta_for_start_row + delta_for_end_row
5751 } else {
5752 delta_for_end_row
5753 }
5754 }
5755
5756 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5757 if self.read_only(cx) {
5758 return;
5759 }
5760 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5761 let selections = self.selections.all::<Point>(cx);
5762 let mut deletion_ranges = Vec::new();
5763 let mut last_outdent = None;
5764 {
5765 let buffer = self.buffer.read(cx);
5766 let snapshot = buffer.snapshot(cx);
5767 for selection in &selections {
5768 let settings = buffer.settings_at(selection.start, cx);
5769 let tab_size = settings.tab_size.get();
5770 let mut rows = selection.spanned_rows(false, &display_map);
5771
5772 // Avoid re-outdenting a row that has already been outdented by a
5773 // previous selection.
5774 if let Some(last_row) = last_outdent {
5775 if last_row == rows.start {
5776 rows.start = rows.start.next_row();
5777 }
5778 }
5779 let has_multiple_rows = rows.len() > 1;
5780 for row in rows.iter_rows() {
5781 let indent_size = snapshot.indent_size_for_line(row);
5782 if indent_size.len > 0 {
5783 let deletion_len = match indent_size.kind {
5784 IndentKind::Space => {
5785 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5786 if columns_to_prev_tab_stop == 0 {
5787 tab_size
5788 } else {
5789 columns_to_prev_tab_stop
5790 }
5791 }
5792 IndentKind::Tab => 1,
5793 };
5794 let start = if has_multiple_rows
5795 || deletion_len > selection.start.column
5796 || indent_size.len < selection.start.column
5797 {
5798 0
5799 } else {
5800 selection.start.column - deletion_len
5801 };
5802 deletion_ranges.push(
5803 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5804 );
5805 last_outdent = Some(row);
5806 }
5807 }
5808 }
5809 }
5810
5811 self.transact(cx, |this, cx| {
5812 this.buffer.update(cx, |buffer, cx| {
5813 let empty_str: Arc<str> = Arc::default();
5814 buffer.edit(
5815 deletion_ranges
5816 .into_iter()
5817 .map(|range| (range, empty_str.clone())),
5818 None,
5819 cx,
5820 );
5821 });
5822 let selections = this.selections.all::<usize>(cx);
5823 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5824 });
5825 }
5826
5827 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5828 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5829 let selections = self.selections.all::<Point>(cx);
5830
5831 let mut new_cursors = Vec::new();
5832 let mut edit_ranges = Vec::new();
5833 let mut selections = selections.iter().peekable();
5834 while let Some(selection) = selections.next() {
5835 let mut rows = selection.spanned_rows(false, &display_map);
5836 let goal_display_column = selection.head().to_display_point(&display_map).column();
5837
5838 // Accumulate contiguous regions of rows that we want to delete.
5839 while let Some(next_selection) = selections.peek() {
5840 let next_rows = next_selection.spanned_rows(false, &display_map);
5841 if next_rows.start <= rows.end {
5842 rows.end = next_rows.end;
5843 selections.next().unwrap();
5844 } else {
5845 break;
5846 }
5847 }
5848
5849 let buffer = &display_map.buffer_snapshot;
5850 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5851 let edit_end;
5852 let cursor_buffer_row;
5853 if buffer.max_point().row >= rows.end.0 {
5854 // If there's a line after the range, delete the \n from the end of the row range
5855 // and position the cursor on the next line.
5856 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5857 cursor_buffer_row = rows.end;
5858 } else {
5859 // If there isn't a line after the range, delete the \n from the line before the
5860 // start of the row range and position the cursor there.
5861 edit_start = edit_start.saturating_sub(1);
5862 edit_end = buffer.len();
5863 cursor_buffer_row = rows.start.previous_row();
5864 }
5865
5866 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5867 *cursor.column_mut() =
5868 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5869
5870 new_cursors.push((
5871 selection.id,
5872 buffer.anchor_after(cursor.to_point(&display_map)),
5873 ));
5874 edit_ranges.push(edit_start..edit_end);
5875 }
5876
5877 self.transact(cx, |this, cx| {
5878 let buffer = this.buffer.update(cx, |buffer, cx| {
5879 let empty_str: Arc<str> = Arc::default();
5880 buffer.edit(
5881 edit_ranges
5882 .into_iter()
5883 .map(|range| (range, empty_str.clone())),
5884 None,
5885 cx,
5886 );
5887 buffer.snapshot(cx)
5888 });
5889 let new_selections = new_cursors
5890 .into_iter()
5891 .map(|(id, cursor)| {
5892 let cursor = cursor.to_point(&buffer);
5893 Selection {
5894 id,
5895 start: cursor,
5896 end: cursor,
5897 reversed: false,
5898 goal: SelectionGoal::None,
5899 }
5900 })
5901 .collect();
5902
5903 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5904 s.select(new_selections);
5905 });
5906 });
5907 }
5908
5909 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5910 if self.read_only(cx) {
5911 return;
5912 }
5913 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5914 for selection in self.selections.all::<Point>(cx) {
5915 let start = MultiBufferRow(selection.start.row);
5916 let end = if selection.start.row == selection.end.row {
5917 MultiBufferRow(selection.start.row + 1)
5918 } else {
5919 MultiBufferRow(selection.end.row)
5920 };
5921
5922 if let Some(last_row_range) = row_ranges.last_mut() {
5923 if start <= last_row_range.end {
5924 last_row_range.end = end;
5925 continue;
5926 }
5927 }
5928 row_ranges.push(start..end);
5929 }
5930
5931 let snapshot = self.buffer.read(cx).snapshot(cx);
5932 let mut cursor_positions = Vec::new();
5933 for row_range in &row_ranges {
5934 let anchor = snapshot.anchor_before(Point::new(
5935 row_range.end.previous_row().0,
5936 snapshot.line_len(row_range.end.previous_row()),
5937 ));
5938 cursor_positions.push(anchor..anchor);
5939 }
5940
5941 self.transact(cx, |this, cx| {
5942 for row_range in row_ranges.into_iter().rev() {
5943 for row in row_range.iter_rows().rev() {
5944 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5945 let next_line_row = row.next_row();
5946 let indent = snapshot.indent_size_for_line(next_line_row);
5947 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5948
5949 let replace = if snapshot.line_len(next_line_row) > indent.len {
5950 " "
5951 } else {
5952 ""
5953 };
5954
5955 this.buffer.update(cx, |buffer, cx| {
5956 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5957 });
5958 }
5959 }
5960
5961 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5962 s.select_anchor_ranges(cursor_positions)
5963 });
5964 });
5965 }
5966
5967 pub fn sort_lines_case_sensitive(
5968 &mut self,
5969 _: &SortLinesCaseSensitive,
5970 cx: &mut ViewContext<Self>,
5971 ) {
5972 self.manipulate_lines(cx, |lines| lines.sort())
5973 }
5974
5975 pub fn sort_lines_case_insensitive(
5976 &mut self,
5977 _: &SortLinesCaseInsensitive,
5978 cx: &mut ViewContext<Self>,
5979 ) {
5980 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5981 }
5982
5983 pub fn unique_lines_case_insensitive(
5984 &mut self,
5985 _: &UniqueLinesCaseInsensitive,
5986 cx: &mut ViewContext<Self>,
5987 ) {
5988 self.manipulate_lines(cx, |lines| {
5989 let mut seen = HashSet::default();
5990 lines.retain(|line| seen.insert(line.to_lowercase()));
5991 })
5992 }
5993
5994 pub fn unique_lines_case_sensitive(
5995 &mut self,
5996 _: &UniqueLinesCaseSensitive,
5997 cx: &mut ViewContext<Self>,
5998 ) {
5999 self.manipulate_lines(cx, |lines| {
6000 let mut seen = HashSet::default();
6001 lines.retain(|line| seen.insert(*line));
6002 })
6003 }
6004
6005 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6006 let mut revert_changes = HashMap::default();
6007 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6008 for hunk in hunks_for_rows(
6009 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6010 &multi_buffer_snapshot,
6011 ) {
6012 Self::prepare_revert_change(&mut revert_changes, &self.buffer(), &hunk, cx);
6013 }
6014 if !revert_changes.is_empty() {
6015 self.transact(cx, |editor, cx| {
6016 editor.revert(revert_changes, cx);
6017 });
6018 }
6019 }
6020
6021 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6022 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6023 if !revert_changes.is_empty() {
6024 self.transact(cx, |editor, cx| {
6025 editor.revert(revert_changes, cx);
6026 });
6027 }
6028 }
6029
6030 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6031 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6032 let project_path = buffer.read(cx).project_path(cx)?;
6033 let project = self.project.as_ref()?.read(cx);
6034 let entry = project.entry_for_path(&project_path, cx)?;
6035 let abs_path = project.absolute_path(&project_path, cx)?;
6036 let parent = if entry.is_symlink {
6037 abs_path.canonicalize().ok()?
6038 } else {
6039 abs_path
6040 }
6041 .parent()?
6042 .to_path_buf();
6043 Some(parent)
6044 }) {
6045 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6046 }
6047 }
6048
6049 fn gather_revert_changes(
6050 &mut self,
6051 selections: &[Selection<Anchor>],
6052 cx: &mut ViewContext<'_, Editor>,
6053 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6054 let mut revert_changes = HashMap::default();
6055 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6056 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6057 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6058 }
6059 revert_changes
6060 }
6061
6062 pub fn prepare_revert_change(
6063 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6064 multi_buffer: &Model<MultiBuffer>,
6065 hunk: &DiffHunk<MultiBufferRow>,
6066 cx: &AppContext,
6067 ) -> Option<()> {
6068 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6069 let buffer = buffer.read(cx);
6070 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6071 let buffer_snapshot = buffer.snapshot();
6072 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6073 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6074 probe
6075 .0
6076 .start
6077 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6078 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6079 }) {
6080 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6081 Some(())
6082 } else {
6083 None
6084 }
6085 }
6086
6087 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6088 self.manipulate_lines(cx, |lines| lines.reverse())
6089 }
6090
6091 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6092 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6093 }
6094
6095 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6096 where
6097 Fn: FnMut(&mut Vec<&str>),
6098 {
6099 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6100 let buffer = self.buffer.read(cx).snapshot(cx);
6101
6102 let mut edits = Vec::new();
6103
6104 let selections = self.selections.all::<Point>(cx);
6105 let mut selections = selections.iter().peekable();
6106 let mut contiguous_row_selections = Vec::new();
6107 let mut new_selections = Vec::new();
6108 let mut added_lines = 0;
6109 let mut removed_lines = 0;
6110
6111 while let Some(selection) = selections.next() {
6112 let (start_row, end_row) = consume_contiguous_rows(
6113 &mut contiguous_row_selections,
6114 selection,
6115 &display_map,
6116 &mut selections,
6117 );
6118
6119 let start_point = Point::new(start_row.0, 0);
6120 let end_point = Point::new(
6121 end_row.previous_row().0,
6122 buffer.line_len(end_row.previous_row()),
6123 );
6124 let text = buffer
6125 .text_for_range(start_point..end_point)
6126 .collect::<String>();
6127
6128 let mut lines = text.split('\n').collect_vec();
6129
6130 let lines_before = lines.len();
6131 callback(&mut lines);
6132 let lines_after = lines.len();
6133
6134 edits.push((start_point..end_point, lines.join("\n")));
6135
6136 // Selections must change based on added and removed line count
6137 let start_row =
6138 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6139 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6140 new_selections.push(Selection {
6141 id: selection.id,
6142 start: start_row,
6143 end: end_row,
6144 goal: SelectionGoal::None,
6145 reversed: selection.reversed,
6146 });
6147
6148 if lines_after > lines_before {
6149 added_lines += lines_after - lines_before;
6150 } else if lines_before > lines_after {
6151 removed_lines += lines_before - lines_after;
6152 }
6153 }
6154
6155 self.transact(cx, |this, cx| {
6156 let buffer = this.buffer.update(cx, |buffer, cx| {
6157 buffer.edit(edits, None, cx);
6158 buffer.snapshot(cx)
6159 });
6160
6161 // Recalculate offsets on newly edited buffer
6162 let new_selections = new_selections
6163 .iter()
6164 .map(|s| {
6165 let start_point = Point::new(s.start.0, 0);
6166 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6167 Selection {
6168 id: s.id,
6169 start: buffer.point_to_offset(start_point),
6170 end: buffer.point_to_offset(end_point),
6171 goal: s.goal,
6172 reversed: s.reversed,
6173 }
6174 })
6175 .collect();
6176
6177 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6178 s.select(new_selections);
6179 });
6180
6181 this.request_autoscroll(Autoscroll::fit(), cx);
6182 });
6183 }
6184
6185 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6186 self.manipulate_text(cx, |text| text.to_uppercase())
6187 }
6188
6189 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6190 self.manipulate_text(cx, |text| text.to_lowercase())
6191 }
6192
6193 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6194 self.manipulate_text(cx, |text| {
6195 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6196 // https://github.com/rutrum/convert-case/issues/16
6197 text.split('\n')
6198 .map(|line| line.to_case(Case::Title))
6199 .join("\n")
6200 })
6201 }
6202
6203 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6204 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6205 }
6206
6207 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6208 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6209 }
6210
6211 pub fn convert_to_upper_camel_case(
6212 &mut self,
6213 _: &ConvertToUpperCamelCase,
6214 cx: &mut ViewContext<Self>,
6215 ) {
6216 self.manipulate_text(cx, |text| {
6217 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6218 // https://github.com/rutrum/convert-case/issues/16
6219 text.split('\n')
6220 .map(|line| line.to_case(Case::UpperCamel))
6221 .join("\n")
6222 })
6223 }
6224
6225 pub fn convert_to_lower_camel_case(
6226 &mut self,
6227 _: &ConvertToLowerCamelCase,
6228 cx: &mut ViewContext<Self>,
6229 ) {
6230 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6231 }
6232
6233 pub fn convert_to_opposite_case(
6234 &mut self,
6235 _: &ConvertToOppositeCase,
6236 cx: &mut ViewContext<Self>,
6237 ) {
6238 self.manipulate_text(cx, |text| {
6239 text.chars()
6240 .fold(String::with_capacity(text.len()), |mut t, c| {
6241 if c.is_uppercase() {
6242 t.extend(c.to_lowercase());
6243 } else {
6244 t.extend(c.to_uppercase());
6245 }
6246 t
6247 })
6248 })
6249 }
6250
6251 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6252 where
6253 Fn: FnMut(&str) -> String,
6254 {
6255 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6256 let buffer = self.buffer.read(cx).snapshot(cx);
6257
6258 let mut new_selections = Vec::new();
6259 let mut edits = Vec::new();
6260 let mut selection_adjustment = 0i32;
6261
6262 for selection in self.selections.all::<usize>(cx) {
6263 let selection_is_empty = selection.is_empty();
6264
6265 let (start, end) = if selection_is_empty {
6266 let word_range = movement::surrounding_word(
6267 &display_map,
6268 selection.start.to_display_point(&display_map),
6269 );
6270 let start = word_range.start.to_offset(&display_map, Bias::Left);
6271 let end = word_range.end.to_offset(&display_map, Bias::Left);
6272 (start, end)
6273 } else {
6274 (selection.start, selection.end)
6275 };
6276
6277 let text = buffer.text_for_range(start..end).collect::<String>();
6278 let old_length = text.len() as i32;
6279 let text = callback(&text);
6280
6281 new_selections.push(Selection {
6282 start: (start as i32 - selection_adjustment) as usize,
6283 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6284 goal: SelectionGoal::None,
6285 ..selection
6286 });
6287
6288 selection_adjustment += old_length - text.len() as i32;
6289
6290 edits.push((start..end, text));
6291 }
6292
6293 self.transact(cx, |this, cx| {
6294 this.buffer.update(cx, |buffer, cx| {
6295 buffer.edit(edits, None, cx);
6296 });
6297
6298 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6299 s.select(new_selections);
6300 });
6301
6302 this.request_autoscroll(Autoscroll::fit(), cx);
6303 });
6304 }
6305
6306 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6307 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6308 let buffer = &display_map.buffer_snapshot;
6309 let selections = self.selections.all::<Point>(cx);
6310
6311 let mut edits = Vec::new();
6312 let mut selections_iter = selections.iter().peekable();
6313 while let Some(selection) = selections_iter.next() {
6314 // Avoid duplicating the same lines twice.
6315 let mut rows = selection.spanned_rows(false, &display_map);
6316
6317 while let Some(next_selection) = selections_iter.peek() {
6318 let next_rows = next_selection.spanned_rows(false, &display_map);
6319 if next_rows.start < rows.end {
6320 rows.end = next_rows.end;
6321 selections_iter.next().unwrap();
6322 } else {
6323 break;
6324 }
6325 }
6326
6327 // Copy the text from the selected row region and splice it either at the start
6328 // or end of the region.
6329 let start = Point::new(rows.start.0, 0);
6330 let end = Point::new(
6331 rows.end.previous_row().0,
6332 buffer.line_len(rows.end.previous_row()),
6333 );
6334 let text = buffer
6335 .text_for_range(start..end)
6336 .chain(Some("\n"))
6337 .collect::<String>();
6338 let insert_location = if upwards {
6339 Point::new(rows.end.0, 0)
6340 } else {
6341 start
6342 };
6343 edits.push((insert_location..insert_location, text));
6344 }
6345
6346 self.transact(cx, |this, cx| {
6347 this.buffer.update(cx, |buffer, cx| {
6348 buffer.edit(edits, None, cx);
6349 });
6350
6351 this.request_autoscroll(Autoscroll::fit(), cx);
6352 });
6353 }
6354
6355 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6356 self.duplicate_line(true, cx);
6357 }
6358
6359 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6360 self.duplicate_line(false, cx);
6361 }
6362
6363 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6364 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6365 let buffer = self.buffer.read(cx).snapshot(cx);
6366
6367 let mut edits = Vec::new();
6368 let mut unfold_ranges = Vec::new();
6369 let mut refold_ranges = Vec::new();
6370
6371 let selections = self.selections.all::<Point>(cx);
6372 let mut selections = selections.iter().peekable();
6373 let mut contiguous_row_selections = Vec::new();
6374 let mut new_selections = Vec::new();
6375
6376 while let Some(selection) = selections.next() {
6377 // Find all the selections that span a contiguous row range
6378 let (start_row, end_row) = consume_contiguous_rows(
6379 &mut contiguous_row_selections,
6380 selection,
6381 &display_map,
6382 &mut selections,
6383 );
6384
6385 // Move the text spanned by the row range to be before the line preceding the row range
6386 if start_row.0 > 0 {
6387 let range_to_move = Point::new(
6388 start_row.previous_row().0,
6389 buffer.line_len(start_row.previous_row()),
6390 )
6391 ..Point::new(
6392 end_row.previous_row().0,
6393 buffer.line_len(end_row.previous_row()),
6394 );
6395 let insertion_point = display_map
6396 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6397 .0;
6398
6399 // Don't move lines across excerpts
6400 if buffer
6401 .excerpt_boundaries_in_range((
6402 Bound::Excluded(insertion_point),
6403 Bound::Included(range_to_move.end),
6404 ))
6405 .next()
6406 .is_none()
6407 {
6408 let text = buffer
6409 .text_for_range(range_to_move.clone())
6410 .flat_map(|s| s.chars())
6411 .skip(1)
6412 .chain(['\n'])
6413 .collect::<String>();
6414
6415 edits.push((
6416 buffer.anchor_after(range_to_move.start)
6417 ..buffer.anchor_before(range_to_move.end),
6418 String::new(),
6419 ));
6420 let insertion_anchor = buffer.anchor_after(insertion_point);
6421 edits.push((insertion_anchor..insertion_anchor, text));
6422
6423 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6424
6425 // Move selections up
6426 new_selections.extend(contiguous_row_selections.drain(..).map(
6427 |mut selection| {
6428 selection.start.row -= row_delta;
6429 selection.end.row -= row_delta;
6430 selection
6431 },
6432 ));
6433
6434 // Move folds up
6435 unfold_ranges.push(range_to_move.clone());
6436 for fold in display_map.folds_in_range(
6437 buffer.anchor_before(range_to_move.start)
6438 ..buffer.anchor_after(range_to_move.end),
6439 ) {
6440 let mut start = fold.range.start.to_point(&buffer);
6441 let mut end = fold.range.end.to_point(&buffer);
6442 start.row -= row_delta;
6443 end.row -= row_delta;
6444 refold_ranges.push((start..end, fold.placeholder.clone()));
6445 }
6446 }
6447 }
6448
6449 // If we didn't move line(s), preserve the existing selections
6450 new_selections.append(&mut contiguous_row_selections);
6451 }
6452
6453 self.transact(cx, |this, cx| {
6454 this.unfold_ranges(unfold_ranges, true, true, cx);
6455 this.buffer.update(cx, |buffer, cx| {
6456 for (range, text) in edits {
6457 buffer.edit([(range, text)], None, cx);
6458 }
6459 });
6460 this.fold_ranges(refold_ranges, true, cx);
6461 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6462 s.select(new_selections);
6463 })
6464 });
6465 }
6466
6467 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6468 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6469 let buffer = self.buffer.read(cx).snapshot(cx);
6470
6471 let mut edits = Vec::new();
6472 let mut unfold_ranges = Vec::new();
6473 let mut refold_ranges = Vec::new();
6474
6475 let selections = self.selections.all::<Point>(cx);
6476 let mut selections = selections.iter().peekable();
6477 let mut contiguous_row_selections = Vec::new();
6478 let mut new_selections = Vec::new();
6479
6480 while let Some(selection) = selections.next() {
6481 // Find all the selections that span a contiguous row range
6482 let (start_row, end_row) = consume_contiguous_rows(
6483 &mut contiguous_row_selections,
6484 selection,
6485 &display_map,
6486 &mut selections,
6487 );
6488
6489 // Move the text spanned by the row range to be after the last line of the row range
6490 if end_row.0 <= buffer.max_point().row {
6491 let range_to_move =
6492 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6493 let insertion_point = display_map
6494 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6495 .0;
6496
6497 // Don't move lines across excerpt boundaries
6498 if buffer
6499 .excerpt_boundaries_in_range((
6500 Bound::Excluded(range_to_move.start),
6501 Bound::Included(insertion_point),
6502 ))
6503 .next()
6504 .is_none()
6505 {
6506 let mut text = String::from("\n");
6507 text.extend(buffer.text_for_range(range_to_move.clone()));
6508 text.pop(); // Drop trailing newline
6509 edits.push((
6510 buffer.anchor_after(range_to_move.start)
6511 ..buffer.anchor_before(range_to_move.end),
6512 String::new(),
6513 ));
6514 let insertion_anchor = buffer.anchor_after(insertion_point);
6515 edits.push((insertion_anchor..insertion_anchor, text));
6516
6517 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6518
6519 // Move selections down
6520 new_selections.extend(contiguous_row_selections.drain(..).map(
6521 |mut selection| {
6522 selection.start.row += row_delta;
6523 selection.end.row += row_delta;
6524 selection
6525 },
6526 ));
6527
6528 // Move folds down
6529 unfold_ranges.push(range_to_move.clone());
6530 for fold in display_map.folds_in_range(
6531 buffer.anchor_before(range_to_move.start)
6532 ..buffer.anchor_after(range_to_move.end),
6533 ) {
6534 let mut start = fold.range.start.to_point(&buffer);
6535 let mut end = fold.range.end.to_point(&buffer);
6536 start.row += row_delta;
6537 end.row += row_delta;
6538 refold_ranges.push((start..end, fold.placeholder.clone()));
6539 }
6540 }
6541 }
6542
6543 // If we didn't move line(s), preserve the existing selections
6544 new_selections.append(&mut contiguous_row_selections);
6545 }
6546
6547 self.transact(cx, |this, cx| {
6548 this.unfold_ranges(unfold_ranges, true, true, cx);
6549 this.buffer.update(cx, |buffer, cx| {
6550 for (range, text) in edits {
6551 buffer.edit([(range, text)], None, cx);
6552 }
6553 });
6554 this.fold_ranges(refold_ranges, true, cx);
6555 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6556 });
6557 }
6558
6559 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6560 let text_layout_details = &self.text_layout_details(cx);
6561 self.transact(cx, |this, cx| {
6562 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6563 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6564 let line_mode = s.line_mode;
6565 s.move_with(|display_map, selection| {
6566 if !selection.is_empty() || line_mode {
6567 return;
6568 }
6569
6570 let mut head = selection.head();
6571 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6572 if head.column() == display_map.line_len(head.row()) {
6573 transpose_offset = display_map
6574 .buffer_snapshot
6575 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6576 }
6577
6578 if transpose_offset == 0 {
6579 return;
6580 }
6581
6582 *head.column_mut() += 1;
6583 head = display_map.clip_point(head, Bias::Right);
6584 let goal = SelectionGoal::HorizontalPosition(
6585 display_map
6586 .x_for_display_point(head, &text_layout_details)
6587 .into(),
6588 );
6589 selection.collapse_to(head, goal);
6590
6591 let transpose_start = display_map
6592 .buffer_snapshot
6593 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6594 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6595 let transpose_end = display_map
6596 .buffer_snapshot
6597 .clip_offset(transpose_offset + 1, Bias::Right);
6598 if let Some(ch) =
6599 display_map.buffer_snapshot.chars_at(transpose_start).next()
6600 {
6601 edits.push((transpose_start..transpose_offset, String::new()));
6602 edits.push((transpose_end..transpose_end, ch.to_string()));
6603 }
6604 }
6605 });
6606 edits
6607 });
6608 this.buffer
6609 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6610 let selections = this.selections.all::<usize>(cx);
6611 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6612 s.select(selections);
6613 });
6614 });
6615 }
6616
6617 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6618 let mut text = String::new();
6619 let buffer = self.buffer.read(cx).snapshot(cx);
6620 let mut selections = self.selections.all::<Point>(cx);
6621 let mut clipboard_selections = Vec::with_capacity(selections.len());
6622 {
6623 let max_point = buffer.max_point();
6624 let mut is_first = true;
6625 for selection in &mut selections {
6626 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6627 if is_entire_line {
6628 selection.start = Point::new(selection.start.row, 0);
6629 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6630 selection.goal = SelectionGoal::None;
6631 }
6632 if is_first {
6633 is_first = false;
6634 } else {
6635 text += "\n";
6636 }
6637 let mut len = 0;
6638 for chunk in buffer.text_for_range(selection.start..selection.end) {
6639 text.push_str(chunk);
6640 len += chunk.len();
6641 }
6642 clipboard_selections.push(ClipboardSelection {
6643 len,
6644 is_entire_line,
6645 first_line_indent: buffer
6646 .indent_size_for_line(MultiBufferRow(selection.start.row))
6647 .len,
6648 });
6649 }
6650 }
6651
6652 self.transact(cx, |this, cx| {
6653 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6654 s.select(selections);
6655 });
6656 this.insert("", cx);
6657 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6658 text,
6659 clipboard_selections,
6660 ));
6661 });
6662 }
6663
6664 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6665 let selections = self.selections.all::<Point>(cx);
6666 let buffer = self.buffer.read(cx).read(cx);
6667 let mut text = String::new();
6668
6669 let mut clipboard_selections = Vec::with_capacity(selections.len());
6670 {
6671 let max_point = buffer.max_point();
6672 let mut is_first = true;
6673 for selection in selections.iter() {
6674 let mut start = selection.start;
6675 let mut end = selection.end;
6676 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6677 if is_entire_line {
6678 start = Point::new(start.row, 0);
6679 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6680 }
6681 if is_first {
6682 is_first = false;
6683 } else {
6684 text += "\n";
6685 }
6686 let mut len = 0;
6687 for chunk in buffer.text_for_range(start..end) {
6688 text.push_str(chunk);
6689 len += chunk.len();
6690 }
6691 clipboard_selections.push(ClipboardSelection {
6692 len,
6693 is_entire_line,
6694 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6695 });
6696 }
6697 }
6698
6699 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6700 text,
6701 clipboard_selections,
6702 ));
6703 }
6704
6705 pub fn do_paste(
6706 &mut self,
6707 text: &String,
6708 clipboard_selections: Option<Vec<ClipboardSelection>>,
6709 handle_entire_lines: bool,
6710 cx: &mut ViewContext<Self>,
6711 ) {
6712 if self.read_only(cx) {
6713 return;
6714 }
6715
6716 let clipboard_text = Cow::Borrowed(text);
6717
6718 self.transact(cx, |this, cx| {
6719 if let Some(mut clipboard_selections) = clipboard_selections {
6720 let old_selections = this.selections.all::<usize>(cx);
6721 let all_selections_were_entire_line =
6722 clipboard_selections.iter().all(|s| s.is_entire_line);
6723 let first_selection_indent_column =
6724 clipboard_selections.first().map(|s| s.first_line_indent);
6725 if clipboard_selections.len() != old_selections.len() {
6726 clipboard_selections.drain(..);
6727 }
6728
6729 this.buffer.update(cx, |buffer, cx| {
6730 let snapshot = buffer.read(cx);
6731 let mut start_offset = 0;
6732 let mut edits = Vec::new();
6733 let mut original_indent_columns = Vec::new();
6734 for (ix, selection) in old_selections.iter().enumerate() {
6735 let to_insert;
6736 let entire_line;
6737 let original_indent_column;
6738 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6739 let end_offset = start_offset + clipboard_selection.len;
6740 to_insert = &clipboard_text[start_offset..end_offset];
6741 entire_line = clipboard_selection.is_entire_line;
6742 start_offset = end_offset + 1;
6743 original_indent_column = Some(clipboard_selection.first_line_indent);
6744 } else {
6745 to_insert = clipboard_text.as_str();
6746 entire_line = all_selections_were_entire_line;
6747 original_indent_column = first_selection_indent_column
6748 }
6749
6750 // If the corresponding selection was empty when this slice of the
6751 // clipboard text was written, then the entire line containing the
6752 // selection was copied. If this selection is also currently empty,
6753 // then paste the line before the current line of the buffer.
6754 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6755 let column = selection.start.to_point(&snapshot).column as usize;
6756 let line_start = selection.start - column;
6757 line_start..line_start
6758 } else {
6759 selection.range()
6760 };
6761
6762 edits.push((range, to_insert));
6763 original_indent_columns.extend(original_indent_column);
6764 }
6765 drop(snapshot);
6766
6767 buffer.edit(
6768 edits,
6769 Some(AutoindentMode::Block {
6770 original_indent_columns,
6771 }),
6772 cx,
6773 );
6774 });
6775
6776 let selections = this.selections.all::<usize>(cx);
6777 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6778 } else {
6779 this.insert(&clipboard_text, cx);
6780 }
6781 });
6782 }
6783
6784 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6785 if let Some(item) = cx.read_from_clipboard() {
6786 let entries = item.entries();
6787
6788 match entries.first() {
6789 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
6790 // of all the pasted entries.
6791 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
6792 .do_paste(
6793 clipboard_string.text(),
6794 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
6795 true,
6796 cx,
6797 ),
6798 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
6799 }
6800 }
6801 }
6802
6803 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6804 if self.read_only(cx) {
6805 return;
6806 }
6807
6808 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6809 if let Some((selections, _)) =
6810 self.selection_history.transaction(transaction_id).cloned()
6811 {
6812 self.change_selections(None, cx, |s| {
6813 s.select_anchors(selections.to_vec());
6814 });
6815 }
6816 self.request_autoscroll(Autoscroll::fit(), cx);
6817 self.unmark_text(cx);
6818 self.refresh_inline_completion(true, false, cx);
6819 cx.emit(EditorEvent::Edited { transaction_id });
6820 cx.emit(EditorEvent::TransactionUndone { transaction_id });
6821 }
6822 }
6823
6824 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6825 if self.read_only(cx) {
6826 return;
6827 }
6828
6829 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6830 if let Some((_, Some(selections))) =
6831 self.selection_history.transaction(transaction_id).cloned()
6832 {
6833 self.change_selections(None, cx, |s| {
6834 s.select_anchors(selections.to_vec());
6835 });
6836 }
6837 self.request_autoscroll(Autoscroll::fit(), cx);
6838 self.unmark_text(cx);
6839 self.refresh_inline_completion(true, false, cx);
6840 cx.emit(EditorEvent::Edited { transaction_id });
6841 }
6842 }
6843
6844 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6845 self.buffer
6846 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6847 }
6848
6849 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6850 self.buffer
6851 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6852 }
6853
6854 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6855 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6856 let line_mode = s.line_mode;
6857 s.move_with(|map, selection| {
6858 let cursor = if selection.is_empty() && !line_mode {
6859 movement::left(map, selection.start)
6860 } else {
6861 selection.start
6862 };
6863 selection.collapse_to(cursor, SelectionGoal::None);
6864 });
6865 })
6866 }
6867
6868 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6869 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6870 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6871 })
6872 }
6873
6874 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6875 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6876 let line_mode = s.line_mode;
6877 s.move_with(|map, selection| {
6878 let cursor = if selection.is_empty() && !line_mode {
6879 movement::right(map, selection.end)
6880 } else {
6881 selection.end
6882 };
6883 selection.collapse_to(cursor, SelectionGoal::None)
6884 });
6885 })
6886 }
6887
6888 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6889 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6890 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6891 })
6892 }
6893
6894 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6895 if self.take_rename(true, cx).is_some() {
6896 return;
6897 }
6898
6899 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6900 cx.propagate();
6901 return;
6902 }
6903
6904 let text_layout_details = &self.text_layout_details(cx);
6905 let selection_count = self.selections.count();
6906 let first_selection = self.selections.first_anchor();
6907
6908 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6909 let line_mode = s.line_mode;
6910 s.move_with(|map, selection| {
6911 if !selection.is_empty() && !line_mode {
6912 selection.goal = SelectionGoal::None;
6913 }
6914 let (cursor, goal) = movement::up(
6915 map,
6916 selection.start,
6917 selection.goal,
6918 false,
6919 &text_layout_details,
6920 );
6921 selection.collapse_to(cursor, goal);
6922 });
6923 });
6924
6925 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
6926 {
6927 cx.propagate();
6928 }
6929 }
6930
6931 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6932 if self.take_rename(true, cx).is_some() {
6933 return;
6934 }
6935
6936 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6937 cx.propagate();
6938 return;
6939 }
6940
6941 let text_layout_details = &self.text_layout_details(cx);
6942
6943 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6944 let line_mode = s.line_mode;
6945 s.move_with(|map, selection| {
6946 if !selection.is_empty() && !line_mode {
6947 selection.goal = SelectionGoal::None;
6948 }
6949 let (cursor, goal) = movement::up_by_rows(
6950 map,
6951 selection.start,
6952 action.lines,
6953 selection.goal,
6954 false,
6955 &text_layout_details,
6956 );
6957 selection.collapse_to(cursor, goal);
6958 });
6959 })
6960 }
6961
6962 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6963 if self.take_rename(true, cx).is_some() {
6964 return;
6965 }
6966
6967 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6968 cx.propagate();
6969 return;
6970 }
6971
6972 let text_layout_details = &self.text_layout_details(cx);
6973
6974 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6975 let line_mode = s.line_mode;
6976 s.move_with(|map, selection| {
6977 if !selection.is_empty() && !line_mode {
6978 selection.goal = SelectionGoal::None;
6979 }
6980 let (cursor, goal) = movement::down_by_rows(
6981 map,
6982 selection.start,
6983 action.lines,
6984 selection.goal,
6985 false,
6986 &text_layout_details,
6987 );
6988 selection.collapse_to(cursor, goal);
6989 });
6990 })
6991 }
6992
6993 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6994 let text_layout_details = &self.text_layout_details(cx);
6995 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6996 s.move_heads_with(|map, head, goal| {
6997 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6998 })
6999 })
7000 }
7001
7002 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7003 let text_layout_details = &self.text_layout_details(cx);
7004 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7005 s.move_heads_with(|map, head, goal| {
7006 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
7007 })
7008 })
7009 }
7010
7011 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7012 let Some(row_count) = self.visible_row_count() else {
7013 return;
7014 };
7015
7016 let text_layout_details = &self.text_layout_details(cx);
7017
7018 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7019 s.move_heads_with(|map, head, goal| {
7020 movement::up_by_rows(map, head, row_count, goal, false, &text_layout_details)
7021 })
7022 })
7023 }
7024
7025 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7026 if self.take_rename(true, cx).is_some() {
7027 return;
7028 }
7029
7030 if self
7031 .context_menu
7032 .write()
7033 .as_mut()
7034 .map(|menu| menu.select_first(self.project.as_ref(), cx))
7035 .unwrap_or(false)
7036 {
7037 return;
7038 }
7039
7040 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7041 cx.propagate();
7042 return;
7043 }
7044
7045 let Some(row_count) = self.visible_row_count() else {
7046 return;
7047 };
7048
7049 let autoscroll = if action.center_cursor {
7050 Autoscroll::center()
7051 } else {
7052 Autoscroll::fit()
7053 };
7054
7055 let text_layout_details = &self.text_layout_details(cx);
7056
7057 self.change_selections(Some(autoscroll), cx, |s| {
7058 let line_mode = s.line_mode;
7059 s.move_with(|map, selection| {
7060 if !selection.is_empty() && !line_mode {
7061 selection.goal = SelectionGoal::None;
7062 }
7063 let (cursor, goal) = movement::up_by_rows(
7064 map,
7065 selection.end,
7066 row_count,
7067 selection.goal,
7068 false,
7069 &text_layout_details,
7070 );
7071 selection.collapse_to(cursor, goal);
7072 });
7073 });
7074 }
7075
7076 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7077 let text_layout_details = &self.text_layout_details(cx);
7078 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7079 s.move_heads_with(|map, head, goal| {
7080 movement::up(map, head, goal, false, &text_layout_details)
7081 })
7082 })
7083 }
7084
7085 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7086 self.take_rename(true, cx);
7087
7088 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7089 cx.propagate();
7090 return;
7091 }
7092
7093 let text_layout_details = &self.text_layout_details(cx);
7094 let selection_count = self.selections.count();
7095 let first_selection = self.selections.first_anchor();
7096
7097 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7098 let line_mode = s.line_mode;
7099 s.move_with(|map, selection| {
7100 if !selection.is_empty() && !line_mode {
7101 selection.goal = SelectionGoal::None;
7102 }
7103 let (cursor, goal) = movement::down(
7104 map,
7105 selection.end,
7106 selection.goal,
7107 false,
7108 &text_layout_details,
7109 );
7110 selection.collapse_to(cursor, goal);
7111 });
7112 });
7113
7114 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7115 {
7116 cx.propagate();
7117 }
7118 }
7119
7120 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7121 let Some(row_count) = self.visible_row_count() else {
7122 return;
7123 };
7124
7125 let text_layout_details = &self.text_layout_details(cx);
7126
7127 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7128 s.move_heads_with(|map, head, goal| {
7129 movement::down_by_rows(map, head, row_count, goal, false, &text_layout_details)
7130 })
7131 })
7132 }
7133
7134 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7135 if self.take_rename(true, cx).is_some() {
7136 return;
7137 }
7138
7139 if self
7140 .context_menu
7141 .write()
7142 .as_mut()
7143 .map(|menu| menu.select_last(self.project.as_ref(), cx))
7144 .unwrap_or(false)
7145 {
7146 return;
7147 }
7148
7149 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7150 cx.propagate();
7151 return;
7152 }
7153
7154 let Some(row_count) = self.visible_row_count() else {
7155 return;
7156 };
7157
7158 let autoscroll = if action.center_cursor {
7159 Autoscroll::center()
7160 } else {
7161 Autoscroll::fit()
7162 };
7163
7164 let text_layout_details = &self.text_layout_details(cx);
7165 self.change_selections(Some(autoscroll), cx, |s| {
7166 let line_mode = s.line_mode;
7167 s.move_with(|map, selection| {
7168 if !selection.is_empty() && !line_mode {
7169 selection.goal = SelectionGoal::None;
7170 }
7171 let (cursor, goal) = movement::down_by_rows(
7172 map,
7173 selection.end,
7174 row_count,
7175 selection.goal,
7176 false,
7177 &text_layout_details,
7178 );
7179 selection.collapse_to(cursor, goal);
7180 });
7181 });
7182 }
7183
7184 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7185 let text_layout_details = &self.text_layout_details(cx);
7186 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7187 s.move_heads_with(|map, head, goal| {
7188 movement::down(map, head, goal, false, &text_layout_details)
7189 })
7190 });
7191 }
7192
7193 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7194 if let Some(context_menu) = self.context_menu.write().as_mut() {
7195 context_menu.select_first(self.project.as_ref(), cx);
7196 }
7197 }
7198
7199 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7200 if let Some(context_menu) = self.context_menu.write().as_mut() {
7201 context_menu.select_prev(self.project.as_ref(), cx);
7202 }
7203 }
7204
7205 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7206 if let Some(context_menu) = self.context_menu.write().as_mut() {
7207 context_menu.select_next(self.project.as_ref(), cx);
7208 }
7209 }
7210
7211 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7212 if let Some(context_menu) = self.context_menu.write().as_mut() {
7213 context_menu.select_last(self.project.as_ref(), cx);
7214 }
7215 }
7216
7217 pub fn move_to_previous_word_start(
7218 &mut self,
7219 _: &MoveToPreviousWordStart,
7220 cx: &mut ViewContext<Self>,
7221 ) {
7222 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7223 s.move_cursors_with(|map, head, _| {
7224 (
7225 movement::previous_word_start(map, head),
7226 SelectionGoal::None,
7227 )
7228 });
7229 })
7230 }
7231
7232 pub fn move_to_previous_subword_start(
7233 &mut self,
7234 _: &MoveToPreviousSubwordStart,
7235 cx: &mut ViewContext<Self>,
7236 ) {
7237 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7238 s.move_cursors_with(|map, head, _| {
7239 (
7240 movement::previous_subword_start(map, head),
7241 SelectionGoal::None,
7242 )
7243 });
7244 })
7245 }
7246
7247 pub fn select_to_previous_word_start(
7248 &mut self,
7249 _: &SelectToPreviousWordStart,
7250 cx: &mut ViewContext<Self>,
7251 ) {
7252 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7253 s.move_heads_with(|map, head, _| {
7254 (
7255 movement::previous_word_start(map, head),
7256 SelectionGoal::None,
7257 )
7258 });
7259 })
7260 }
7261
7262 pub fn select_to_previous_subword_start(
7263 &mut self,
7264 _: &SelectToPreviousSubwordStart,
7265 cx: &mut ViewContext<Self>,
7266 ) {
7267 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7268 s.move_heads_with(|map, head, _| {
7269 (
7270 movement::previous_subword_start(map, head),
7271 SelectionGoal::None,
7272 )
7273 });
7274 })
7275 }
7276
7277 pub fn delete_to_previous_word_start(
7278 &mut self,
7279 _: &DeleteToPreviousWordStart,
7280 cx: &mut ViewContext<Self>,
7281 ) {
7282 self.transact(cx, |this, cx| {
7283 this.select_autoclose_pair(cx);
7284 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7285 let line_mode = s.line_mode;
7286 s.move_with(|map, selection| {
7287 if selection.is_empty() && !line_mode {
7288 let cursor = movement::previous_word_start(map, selection.head());
7289 selection.set_head(cursor, SelectionGoal::None);
7290 }
7291 });
7292 });
7293 this.insert("", cx);
7294 });
7295 }
7296
7297 pub fn delete_to_previous_subword_start(
7298 &mut self,
7299 _: &DeleteToPreviousSubwordStart,
7300 cx: &mut ViewContext<Self>,
7301 ) {
7302 self.transact(cx, |this, cx| {
7303 this.select_autoclose_pair(cx);
7304 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7305 let line_mode = s.line_mode;
7306 s.move_with(|map, selection| {
7307 if selection.is_empty() && !line_mode {
7308 let cursor = movement::previous_subword_start(map, selection.head());
7309 selection.set_head(cursor, SelectionGoal::None);
7310 }
7311 });
7312 });
7313 this.insert("", cx);
7314 });
7315 }
7316
7317 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7318 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7319 s.move_cursors_with(|map, head, _| {
7320 (movement::next_word_end(map, head), SelectionGoal::None)
7321 });
7322 })
7323 }
7324
7325 pub fn move_to_next_subword_end(
7326 &mut self,
7327 _: &MoveToNextSubwordEnd,
7328 cx: &mut ViewContext<Self>,
7329 ) {
7330 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7331 s.move_cursors_with(|map, head, _| {
7332 (movement::next_subword_end(map, head), SelectionGoal::None)
7333 });
7334 })
7335 }
7336
7337 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7338 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7339 s.move_heads_with(|map, head, _| {
7340 (movement::next_word_end(map, head), SelectionGoal::None)
7341 });
7342 })
7343 }
7344
7345 pub fn select_to_next_subword_end(
7346 &mut self,
7347 _: &SelectToNextSubwordEnd,
7348 cx: &mut ViewContext<Self>,
7349 ) {
7350 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7351 s.move_heads_with(|map, head, _| {
7352 (movement::next_subword_end(map, head), SelectionGoal::None)
7353 });
7354 })
7355 }
7356
7357 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
7358 self.transact(cx, |this, cx| {
7359 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7360 let line_mode = s.line_mode;
7361 s.move_with(|map, selection| {
7362 if selection.is_empty() && !line_mode {
7363 let cursor = movement::next_word_end(map, selection.head());
7364 selection.set_head(cursor, SelectionGoal::None);
7365 }
7366 });
7367 });
7368 this.insert("", cx);
7369 });
7370 }
7371
7372 pub fn delete_to_next_subword_end(
7373 &mut self,
7374 _: &DeleteToNextSubwordEnd,
7375 cx: &mut ViewContext<Self>,
7376 ) {
7377 self.transact(cx, |this, cx| {
7378 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7379 s.move_with(|map, selection| {
7380 if selection.is_empty() {
7381 let cursor = movement::next_subword_end(map, selection.head());
7382 selection.set_head(cursor, SelectionGoal::None);
7383 }
7384 });
7385 });
7386 this.insert("", cx);
7387 });
7388 }
7389
7390 pub fn move_to_beginning_of_line(
7391 &mut self,
7392 action: &MoveToBeginningOfLine,
7393 cx: &mut ViewContext<Self>,
7394 ) {
7395 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7396 s.move_cursors_with(|map, head, _| {
7397 (
7398 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7399 SelectionGoal::None,
7400 )
7401 });
7402 })
7403 }
7404
7405 pub fn select_to_beginning_of_line(
7406 &mut self,
7407 action: &SelectToBeginningOfLine,
7408 cx: &mut ViewContext<Self>,
7409 ) {
7410 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7411 s.move_heads_with(|map, head, _| {
7412 (
7413 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7414 SelectionGoal::None,
7415 )
7416 });
7417 });
7418 }
7419
7420 pub fn delete_to_beginning_of_line(
7421 &mut self,
7422 _: &DeleteToBeginningOfLine,
7423 cx: &mut ViewContext<Self>,
7424 ) {
7425 self.transact(cx, |this, cx| {
7426 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7427 s.move_with(|_, selection| {
7428 selection.reversed = true;
7429 });
7430 });
7431
7432 this.select_to_beginning_of_line(
7433 &SelectToBeginningOfLine {
7434 stop_at_soft_wraps: false,
7435 },
7436 cx,
7437 );
7438 this.backspace(&Backspace, cx);
7439 });
7440 }
7441
7442 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7443 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7444 s.move_cursors_with(|map, head, _| {
7445 (
7446 movement::line_end(map, head, action.stop_at_soft_wraps),
7447 SelectionGoal::None,
7448 )
7449 });
7450 })
7451 }
7452
7453 pub fn select_to_end_of_line(
7454 &mut self,
7455 action: &SelectToEndOfLine,
7456 cx: &mut ViewContext<Self>,
7457 ) {
7458 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7459 s.move_heads_with(|map, head, _| {
7460 (
7461 movement::line_end(map, head, action.stop_at_soft_wraps),
7462 SelectionGoal::None,
7463 )
7464 });
7465 })
7466 }
7467
7468 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7469 self.transact(cx, |this, cx| {
7470 this.select_to_end_of_line(
7471 &SelectToEndOfLine {
7472 stop_at_soft_wraps: false,
7473 },
7474 cx,
7475 );
7476 this.delete(&Delete, cx);
7477 });
7478 }
7479
7480 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7481 self.transact(cx, |this, cx| {
7482 this.select_to_end_of_line(
7483 &SelectToEndOfLine {
7484 stop_at_soft_wraps: false,
7485 },
7486 cx,
7487 );
7488 this.cut(&Cut, cx);
7489 });
7490 }
7491
7492 pub fn move_to_start_of_paragraph(
7493 &mut self,
7494 _: &MoveToStartOfParagraph,
7495 cx: &mut ViewContext<Self>,
7496 ) {
7497 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7498 cx.propagate();
7499 return;
7500 }
7501
7502 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7503 s.move_with(|map, selection| {
7504 selection.collapse_to(
7505 movement::start_of_paragraph(map, selection.head(), 1),
7506 SelectionGoal::None,
7507 )
7508 });
7509 })
7510 }
7511
7512 pub fn move_to_end_of_paragraph(
7513 &mut self,
7514 _: &MoveToEndOfParagraph,
7515 cx: &mut ViewContext<Self>,
7516 ) {
7517 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7518 cx.propagate();
7519 return;
7520 }
7521
7522 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7523 s.move_with(|map, selection| {
7524 selection.collapse_to(
7525 movement::end_of_paragraph(map, selection.head(), 1),
7526 SelectionGoal::None,
7527 )
7528 });
7529 })
7530 }
7531
7532 pub fn select_to_start_of_paragraph(
7533 &mut self,
7534 _: &SelectToStartOfParagraph,
7535 cx: &mut ViewContext<Self>,
7536 ) {
7537 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7538 cx.propagate();
7539 return;
7540 }
7541
7542 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7543 s.move_heads_with(|map, head, _| {
7544 (
7545 movement::start_of_paragraph(map, head, 1),
7546 SelectionGoal::None,
7547 )
7548 });
7549 })
7550 }
7551
7552 pub fn select_to_end_of_paragraph(
7553 &mut self,
7554 _: &SelectToEndOfParagraph,
7555 cx: &mut ViewContext<Self>,
7556 ) {
7557 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7558 cx.propagate();
7559 return;
7560 }
7561
7562 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7563 s.move_heads_with(|map, head, _| {
7564 (
7565 movement::end_of_paragraph(map, head, 1),
7566 SelectionGoal::None,
7567 )
7568 });
7569 })
7570 }
7571
7572 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7573 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7574 cx.propagate();
7575 return;
7576 }
7577
7578 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7579 s.select_ranges(vec![0..0]);
7580 });
7581 }
7582
7583 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7584 let mut selection = self.selections.last::<Point>(cx);
7585 selection.set_head(Point::zero(), SelectionGoal::None);
7586
7587 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7588 s.select(vec![selection]);
7589 });
7590 }
7591
7592 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7593 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7594 cx.propagate();
7595 return;
7596 }
7597
7598 let cursor = self.buffer.read(cx).read(cx).len();
7599 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7600 s.select_ranges(vec![cursor..cursor])
7601 });
7602 }
7603
7604 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7605 self.nav_history = nav_history;
7606 }
7607
7608 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7609 self.nav_history.as_ref()
7610 }
7611
7612 fn push_to_nav_history(
7613 &mut self,
7614 cursor_anchor: Anchor,
7615 new_position: Option<Point>,
7616 cx: &mut ViewContext<Self>,
7617 ) {
7618 if let Some(nav_history) = self.nav_history.as_mut() {
7619 let buffer = self.buffer.read(cx).read(cx);
7620 let cursor_position = cursor_anchor.to_point(&buffer);
7621 let scroll_state = self.scroll_manager.anchor();
7622 let scroll_top_row = scroll_state.top_row(&buffer);
7623 drop(buffer);
7624
7625 if let Some(new_position) = new_position {
7626 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7627 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7628 return;
7629 }
7630 }
7631
7632 nav_history.push(
7633 Some(NavigationData {
7634 cursor_anchor,
7635 cursor_position,
7636 scroll_anchor: scroll_state,
7637 scroll_top_row,
7638 }),
7639 cx,
7640 );
7641 }
7642 }
7643
7644 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7645 let buffer = self.buffer.read(cx).snapshot(cx);
7646 let mut selection = self.selections.first::<usize>(cx);
7647 selection.set_head(buffer.len(), SelectionGoal::None);
7648 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7649 s.select(vec![selection]);
7650 });
7651 }
7652
7653 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7654 let end = self.buffer.read(cx).read(cx).len();
7655 self.change_selections(None, cx, |s| {
7656 s.select_ranges(vec![0..end]);
7657 });
7658 }
7659
7660 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7661 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7662 let mut selections = self.selections.all::<Point>(cx);
7663 let max_point = display_map.buffer_snapshot.max_point();
7664 for selection in &mut selections {
7665 let rows = selection.spanned_rows(true, &display_map);
7666 selection.start = Point::new(rows.start.0, 0);
7667 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7668 selection.reversed = false;
7669 }
7670 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7671 s.select(selections);
7672 });
7673 }
7674
7675 pub fn split_selection_into_lines(
7676 &mut self,
7677 _: &SplitSelectionIntoLines,
7678 cx: &mut ViewContext<Self>,
7679 ) {
7680 let mut to_unfold = Vec::new();
7681 let mut new_selection_ranges = Vec::new();
7682 {
7683 let selections = self.selections.all::<Point>(cx);
7684 let buffer = self.buffer.read(cx).read(cx);
7685 for selection in selections {
7686 for row in selection.start.row..selection.end.row {
7687 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7688 new_selection_ranges.push(cursor..cursor);
7689 }
7690 new_selection_ranges.push(selection.end..selection.end);
7691 to_unfold.push(selection.start..selection.end);
7692 }
7693 }
7694 self.unfold_ranges(to_unfold, true, true, cx);
7695 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7696 s.select_ranges(new_selection_ranges);
7697 });
7698 }
7699
7700 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7701 self.add_selection(true, cx);
7702 }
7703
7704 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7705 self.add_selection(false, cx);
7706 }
7707
7708 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7709 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7710 let mut selections = self.selections.all::<Point>(cx);
7711 let text_layout_details = self.text_layout_details(cx);
7712 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7713 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7714 let range = oldest_selection.display_range(&display_map).sorted();
7715
7716 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7717 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7718 let positions = start_x.min(end_x)..start_x.max(end_x);
7719
7720 selections.clear();
7721 let mut stack = Vec::new();
7722 for row in range.start.row().0..=range.end.row().0 {
7723 if let Some(selection) = self.selections.build_columnar_selection(
7724 &display_map,
7725 DisplayRow(row),
7726 &positions,
7727 oldest_selection.reversed,
7728 &text_layout_details,
7729 ) {
7730 stack.push(selection.id);
7731 selections.push(selection);
7732 }
7733 }
7734
7735 if above {
7736 stack.reverse();
7737 }
7738
7739 AddSelectionsState { above, stack }
7740 });
7741
7742 let last_added_selection = *state.stack.last().unwrap();
7743 let mut new_selections = Vec::new();
7744 if above == state.above {
7745 let end_row = if above {
7746 DisplayRow(0)
7747 } else {
7748 display_map.max_point().row()
7749 };
7750
7751 'outer: for selection in selections {
7752 if selection.id == last_added_selection {
7753 let range = selection.display_range(&display_map).sorted();
7754 debug_assert_eq!(range.start.row(), range.end.row());
7755 let mut row = range.start.row();
7756 let positions =
7757 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7758 px(start)..px(end)
7759 } else {
7760 let start_x =
7761 display_map.x_for_display_point(range.start, &text_layout_details);
7762 let end_x =
7763 display_map.x_for_display_point(range.end, &text_layout_details);
7764 start_x.min(end_x)..start_x.max(end_x)
7765 };
7766
7767 while row != end_row {
7768 if above {
7769 row.0 -= 1;
7770 } else {
7771 row.0 += 1;
7772 }
7773
7774 if let Some(new_selection) = self.selections.build_columnar_selection(
7775 &display_map,
7776 row,
7777 &positions,
7778 selection.reversed,
7779 &text_layout_details,
7780 ) {
7781 state.stack.push(new_selection.id);
7782 if above {
7783 new_selections.push(new_selection);
7784 new_selections.push(selection);
7785 } else {
7786 new_selections.push(selection);
7787 new_selections.push(new_selection);
7788 }
7789
7790 continue 'outer;
7791 }
7792 }
7793 }
7794
7795 new_selections.push(selection);
7796 }
7797 } else {
7798 new_selections = selections;
7799 new_selections.retain(|s| s.id != last_added_selection);
7800 state.stack.pop();
7801 }
7802
7803 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7804 s.select(new_selections);
7805 });
7806 if state.stack.len() > 1 {
7807 self.add_selections_state = Some(state);
7808 }
7809 }
7810
7811 pub fn select_next_match_internal(
7812 &mut self,
7813 display_map: &DisplaySnapshot,
7814 replace_newest: bool,
7815 autoscroll: Option<Autoscroll>,
7816 cx: &mut ViewContext<Self>,
7817 ) -> Result<()> {
7818 fn select_next_match_ranges(
7819 this: &mut Editor,
7820 range: Range<usize>,
7821 replace_newest: bool,
7822 auto_scroll: Option<Autoscroll>,
7823 cx: &mut ViewContext<Editor>,
7824 ) {
7825 this.unfold_ranges([range.clone()], false, true, cx);
7826 this.change_selections(auto_scroll, cx, |s| {
7827 if replace_newest {
7828 s.delete(s.newest_anchor().id);
7829 }
7830 s.insert_range(range.clone());
7831 });
7832 }
7833
7834 let buffer = &display_map.buffer_snapshot;
7835 let mut selections = self.selections.all::<usize>(cx);
7836 if let Some(mut select_next_state) = self.select_next_state.take() {
7837 let query = &select_next_state.query;
7838 if !select_next_state.done {
7839 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7840 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7841 let mut next_selected_range = None;
7842
7843 let bytes_after_last_selection =
7844 buffer.bytes_in_range(last_selection.end..buffer.len());
7845 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7846 let query_matches = query
7847 .stream_find_iter(bytes_after_last_selection)
7848 .map(|result| (last_selection.end, result))
7849 .chain(
7850 query
7851 .stream_find_iter(bytes_before_first_selection)
7852 .map(|result| (0, result)),
7853 );
7854
7855 for (start_offset, query_match) in query_matches {
7856 let query_match = query_match.unwrap(); // can only fail due to I/O
7857 let offset_range =
7858 start_offset + query_match.start()..start_offset + query_match.end();
7859 let display_range = offset_range.start.to_display_point(&display_map)
7860 ..offset_range.end.to_display_point(&display_map);
7861
7862 if !select_next_state.wordwise
7863 || (!movement::is_inside_word(&display_map, display_range.start)
7864 && !movement::is_inside_word(&display_map, display_range.end))
7865 {
7866 // TODO: This is n^2, because we might check all the selections
7867 if !selections
7868 .iter()
7869 .any(|selection| selection.range().overlaps(&offset_range))
7870 {
7871 next_selected_range = Some(offset_range);
7872 break;
7873 }
7874 }
7875 }
7876
7877 if let Some(next_selected_range) = next_selected_range {
7878 select_next_match_ranges(
7879 self,
7880 next_selected_range,
7881 replace_newest,
7882 autoscroll,
7883 cx,
7884 );
7885 } else {
7886 select_next_state.done = true;
7887 }
7888 }
7889
7890 self.select_next_state = Some(select_next_state);
7891 } else {
7892 let mut only_carets = true;
7893 let mut same_text_selected = true;
7894 let mut selected_text = None;
7895
7896 let mut selections_iter = selections.iter().peekable();
7897 while let Some(selection) = selections_iter.next() {
7898 if selection.start != selection.end {
7899 only_carets = false;
7900 }
7901
7902 if same_text_selected {
7903 if selected_text.is_none() {
7904 selected_text =
7905 Some(buffer.text_for_range(selection.range()).collect::<String>());
7906 }
7907
7908 if let Some(next_selection) = selections_iter.peek() {
7909 if next_selection.range().len() == selection.range().len() {
7910 let next_selected_text = buffer
7911 .text_for_range(next_selection.range())
7912 .collect::<String>();
7913 if Some(next_selected_text) != selected_text {
7914 same_text_selected = false;
7915 selected_text = None;
7916 }
7917 } else {
7918 same_text_selected = false;
7919 selected_text = None;
7920 }
7921 }
7922 }
7923 }
7924
7925 if only_carets {
7926 for selection in &mut selections {
7927 let word_range = movement::surrounding_word(
7928 &display_map,
7929 selection.start.to_display_point(&display_map),
7930 );
7931 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7932 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7933 selection.goal = SelectionGoal::None;
7934 selection.reversed = false;
7935 select_next_match_ranges(
7936 self,
7937 selection.start..selection.end,
7938 replace_newest,
7939 autoscroll,
7940 cx,
7941 );
7942 }
7943
7944 if selections.len() == 1 {
7945 let selection = selections
7946 .last()
7947 .expect("ensured that there's only one selection");
7948 let query = buffer
7949 .text_for_range(selection.start..selection.end)
7950 .collect::<String>();
7951 let is_empty = query.is_empty();
7952 let select_state = SelectNextState {
7953 query: AhoCorasick::new(&[query])?,
7954 wordwise: true,
7955 done: is_empty,
7956 };
7957 self.select_next_state = Some(select_state);
7958 } else {
7959 self.select_next_state = None;
7960 }
7961 } else if let Some(selected_text) = selected_text {
7962 self.select_next_state = Some(SelectNextState {
7963 query: AhoCorasick::new(&[selected_text])?,
7964 wordwise: false,
7965 done: false,
7966 });
7967 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7968 }
7969 }
7970 Ok(())
7971 }
7972
7973 pub fn select_all_matches(
7974 &mut self,
7975 _action: &SelectAllMatches,
7976 cx: &mut ViewContext<Self>,
7977 ) -> Result<()> {
7978 self.push_to_selection_history();
7979 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7980
7981 self.select_next_match_internal(&display_map, false, None, cx)?;
7982 let Some(select_next_state) = self.select_next_state.as_mut() else {
7983 return Ok(());
7984 };
7985 if select_next_state.done {
7986 return Ok(());
7987 }
7988
7989 let mut new_selections = self.selections.all::<usize>(cx);
7990
7991 let buffer = &display_map.buffer_snapshot;
7992 let query_matches = select_next_state
7993 .query
7994 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7995
7996 for query_match in query_matches {
7997 let query_match = query_match.unwrap(); // can only fail due to I/O
7998 let offset_range = query_match.start()..query_match.end();
7999 let display_range = offset_range.start.to_display_point(&display_map)
8000 ..offset_range.end.to_display_point(&display_map);
8001
8002 if !select_next_state.wordwise
8003 || (!movement::is_inside_word(&display_map, display_range.start)
8004 && !movement::is_inside_word(&display_map, display_range.end))
8005 {
8006 self.selections.change_with(cx, |selections| {
8007 new_selections.push(Selection {
8008 id: selections.new_selection_id(),
8009 start: offset_range.start,
8010 end: offset_range.end,
8011 reversed: false,
8012 goal: SelectionGoal::None,
8013 });
8014 });
8015 }
8016 }
8017
8018 new_selections.sort_by_key(|selection| selection.start);
8019 let mut ix = 0;
8020 while ix + 1 < new_selections.len() {
8021 let current_selection = &new_selections[ix];
8022 let next_selection = &new_selections[ix + 1];
8023 if current_selection.range().overlaps(&next_selection.range()) {
8024 if current_selection.id < next_selection.id {
8025 new_selections.remove(ix + 1);
8026 } else {
8027 new_selections.remove(ix);
8028 }
8029 } else {
8030 ix += 1;
8031 }
8032 }
8033
8034 select_next_state.done = true;
8035 self.unfold_ranges(
8036 new_selections.iter().map(|selection| selection.range()),
8037 false,
8038 false,
8039 cx,
8040 );
8041 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8042 selections.select(new_selections)
8043 });
8044
8045 Ok(())
8046 }
8047
8048 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8049 self.push_to_selection_history();
8050 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8051 self.select_next_match_internal(
8052 &display_map,
8053 action.replace_newest,
8054 Some(Autoscroll::newest()),
8055 cx,
8056 )?;
8057 Ok(())
8058 }
8059
8060 pub fn select_previous(
8061 &mut self,
8062 action: &SelectPrevious,
8063 cx: &mut ViewContext<Self>,
8064 ) -> Result<()> {
8065 self.push_to_selection_history();
8066 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8067 let buffer = &display_map.buffer_snapshot;
8068 let mut selections = self.selections.all::<usize>(cx);
8069 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8070 let query = &select_prev_state.query;
8071 if !select_prev_state.done {
8072 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8073 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8074 let mut next_selected_range = None;
8075 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8076 let bytes_before_last_selection =
8077 buffer.reversed_bytes_in_range(0..last_selection.start);
8078 let bytes_after_first_selection =
8079 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8080 let query_matches = query
8081 .stream_find_iter(bytes_before_last_selection)
8082 .map(|result| (last_selection.start, result))
8083 .chain(
8084 query
8085 .stream_find_iter(bytes_after_first_selection)
8086 .map(|result| (buffer.len(), result)),
8087 );
8088 for (end_offset, query_match) in query_matches {
8089 let query_match = query_match.unwrap(); // can only fail due to I/O
8090 let offset_range =
8091 end_offset - query_match.end()..end_offset - query_match.start();
8092 let display_range = offset_range.start.to_display_point(&display_map)
8093 ..offset_range.end.to_display_point(&display_map);
8094
8095 if !select_prev_state.wordwise
8096 || (!movement::is_inside_word(&display_map, display_range.start)
8097 && !movement::is_inside_word(&display_map, display_range.end))
8098 {
8099 next_selected_range = Some(offset_range);
8100 break;
8101 }
8102 }
8103
8104 if let Some(next_selected_range) = next_selected_range {
8105 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
8106 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8107 if action.replace_newest {
8108 s.delete(s.newest_anchor().id);
8109 }
8110 s.insert_range(next_selected_range);
8111 });
8112 } else {
8113 select_prev_state.done = true;
8114 }
8115 }
8116
8117 self.select_prev_state = Some(select_prev_state);
8118 } else {
8119 let mut only_carets = true;
8120 let mut same_text_selected = true;
8121 let mut selected_text = None;
8122
8123 let mut selections_iter = selections.iter().peekable();
8124 while let Some(selection) = selections_iter.next() {
8125 if selection.start != selection.end {
8126 only_carets = false;
8127 }
8128
8129 if same_text_selected {
8130 if selected_text.is_none() {
8131 selected_text =
8132 Some(buffer.text_for_range(selection.range()).collect::<String>());
8133 }
8134
8135 if let Some(next_selection) = selections_iter.peek() {
8136 if next_selection.range().len() == selection.range().len() {
8137 let next_selected_text = buffer
8138 .text_for_range(next_selection.range())
8139 .collect::<String>();
8140 if Some(next_selected_text) != selected_text {
8141 same_text_selected = false;
8142 selected_text = None;
8143 }
8144 } else {
8145 same_text_selected = false;
8146 selected_text = None;
8147 }
8148 }
8149 }
8150 }
8151
8152 if only_carets {
8153 for selection in &mut selections {
8154 let word_range = movement::surrounding_word(
8155 &display_map,
8156 selection.start.to_display_point(&display_map),
8157 );
8158 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8159 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8160 selection.goal = SelectionGoal::None;
8161 selection.reversed = false;
8162 }
8163 if selections.len() == 1 {
8164 let selection = selections
8165 .last()
8166 .expect("ensured that there's only one selection");
8167 let query = buffer
8168 .text_for_range(selection.start..selection.end)
8169 .collect::<String>();
8170 let is_empty = query.is_empty();
8171 let select_state = SelectNextState {
8172 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8173 wordwise: true,
8174 done: is_empty,
8175 };
8176 self.select_prev_state = Some(select_state);
8177 } else {
8178 self.select_prev_state = None;
8179 }
8180
8181 self.unfold_ranges(
8182 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8183 false,
8184 true,
8185 cx,
8186 );
8187 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8188 s.select(selections);
8189 });
8190 } else if let Some(selected_text) = selected_text {
8191 self.select_prev_state = Some(SelectNextState {
8192 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8193 wordwise: false,
8194 done: false,
8195 });
8196 self.select_previous(action, cx)?;
8197 }
8198 }
8199 Ok(())
8200 }
8201
8202 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8203 let text_layout_details = &self.text_layout_details(cx);
8204 self.transact(cx, |this, cx| {
8205 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8206 let mut edits = Vec::new();
8207 let mut selection_edit_ranges = Vec::new();
8208 let mut last_toggled_row = None;
8209 let snapshot = this.buffer.read(cx).read(cx);
8210 let empty_str: Arc<str> = Arc::default();
8211 let mut suffixes_inserted = Vec::new();
8212
8213 fn comment_prefix_range(
8214 snapshot: &MultiBufferSnapshot,
8215 row: MultiBufferRow,
8216 comment_prefix: &str,
8217 comment_prefix_whitespace: &str,
8218 ) -> Range<Point> {
8219 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
8220
8221 let mut line_bytes = snapshot
8222 .bytes_in_range(start..snapshot.max_point())
8223 .flatten()
8224 .copied();
8225
8226 // If this line currently begins with the line comment prefix, then record
8227 // the range containing the prefix.
8228 if line_bytes
8229 .by_ref()
8230 .take(comment_prefix.len())
8231 .eq(comment_prefix.bytes())
8232 {
8233 // Include any whitespace that matches the comment prefix.
8234 let matching_whitespace_len = line_bytes
8235 .zip(comment_prefix_whitespace.bytes())
8236 .take_while(|(a, b)| a == b)
8237 .count() as u32;
8238 let end = Point::new(
8239 start.row,
8240 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8241 );
8242 start..end
8243 } else {
8244 start..start
8245 }
8246 }
8247
8248 fn comment_suffix_range(
8249 snapshot: &MultiBufferSnapshot,
8250 row: MultiBufferRow,
8251 comment_suffix: &str,
8252 comment_suffix_has_leading_space: bool,
8253 ) -> Range<Point> {
8254 let end = Point::new(row.0, snapshot.line_len(row));
8255 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8256
8257 let mut line_end_bytes = snapshot
8258 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8259 .flatten()
8260 .copied();
8261
8262 let leading_space_len = if suffix_start_column > 0
8263 && line_end_bytes.next() == Some(b' ')
8264 && comment_suffix_has_leading_space
8265 {
8266 1
8267 } else {
8268 0
8269 };
8270
8271 // If this line currently begins with the line comment prefix, then record
8272 // the range containing the prefix.
8273 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8274 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8275 start..end
8276 } else {
8277 end..end
8278 }
8279 }
8280
8281 // TODO: Handle selections that cross excerpts
8282 for selection in &mut selections {
8283 let start_column = snapshot
8284 .indent_size_for_line(MultiBufferRow(selection.start.row))
8285 .len;
8286 let language = if let Some(language) =
8287 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8288 {
8289 language
8290 } else {
8291 continue;
8292 };
8293
8294 selection_edit_ranges.clear();
8295
8296 // If multiple selections contain a given row, avoid processing that
8297 // row more than once.
8298 let mut start_row = MultiBufferRow(selection.start.row);
8299 if last_toggled_row == Some(start_row) {
8300 start_row = start_row.next_row();
8301 }
8302 let end_row =
8303 if selection.end.row > selection.start.row && selection.end.column == 0 {
8304 MultiBufferRow(selection.end.row - 1)
8305 } else {
8306 MultiBufferRow(selection.end.row)
8307 };
8308 last_toggled_row = Some(end_row);
8309
8310 if start_row > end_row {
8311 continue;
8312 }
8313
8314 // If the language has line comments, toggle those.
8315 let full_comment_prefixes = language.line_comment_prefixes();
8316 if !full_comment_prefixes.is_empty() {
8317 let first_prefix = full_comment_prefixes
8318 .first()
8319 .expect("prefixes is non-empty");
8320 let prefix_trimmed_lengths = full_comment_prefixes
8321 .iter()
8322 .map(|p| p.trim_end_matches(' ').len())
8323 .collect::<SmallVec<[usize; 4]>>();
8324
8325 let mut all_selection_lines_are_comments = true;
8326
8327 for row in start_row.0..=end_row.0 {
8328 let row = MultiBufferRow(row);
8329 if start_row < end_row && snapshot.is_line_blank(row) {
8330 continue;
8331 }
8332
8333 let prefix_range = full_comment_prefixes
8334 .iter()
8335 .zip(prefix_trimmed_lengths.iter().copied())
8336 .map(|(prefix, trimmed_prefix_len)| {
8337 comment_prefix_range(
8338 snapshot.deref(),
8339 row,
8340 &prefix[..trimmed_prefix_len],
8341 &prefix[trimmed_prefix_len..],
8342 )
8343 })
8344 .max_by_key(|range| range.end.column - range.start.column)
8345 .expect("prefixes is non-empty");
8346
8347 if prefix_range.is_empty() {
8348 all_selection_lines_are_comments = false;
8349 }
8350
8351 selection_edit_ranges.push(prefix_range);
8352 }
8353
8354 if all_selection_lines_are_comments {
8355 edits.extend(
8356 selection_edit_ranges
8357 .iter()
8358 .cloned()
8359 .map(|range| (range, empty_str.clone())),
8360 );
8361 } else {
8362 let min_column = selection_edit_ranges
8363 .iter()
8364 .map(|range| range.start.column)
8365 .min()
8366 .unwrap_or(0);
8367 edits.extend(selection_edit_ranges.iter().map(|range| {
8368 let position = Point::new(range.start.row, min_column);
8369 (position..position, first_prefix.clone())
8370 }));
8371 }
8372 } else if let Some((full_comment_prefix, comment_suffix)) =
8373 language.block_comment_delimiters()
8374 {
8375 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8376 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8377 let prefix_range = comment_prefix_range(
8378 snapshot.deref(),
8379 start_row,
8380 comment_prefix,
8381 comment_prefix_whitespace,
8382 );
8383 let suffix_range = comment_suffix_range(
8384 snapshot.deref(),
8385 end_row,
8386 comment_suffix.trim_start_matches(' '),
8387 comment_suffix.starts_with(' '),
8388 );
8389
8390 if prefix_range.is_empty() || suffix_range.is_empty() {
8391 edits.push((
8392 prefix_range.start..prefix_range.start,
8393 full_comment_prefix.clone(),
8394 ));
8395 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8396 suffixes_inserted.push((end_row, comment_suffix.len()));
8397 } else {
8398 edits.push((prefix_range, empty_str.clone()));
8399 edits.push((suffix_range, empty_str.clone()));
8400 }
8401 } else {
8402 continue;
8403 }
8404 }
8405
8406 drop(snapshot);
8407 this.buffer.update(cx, |buffer, cx| {
8408 buffer.edit(edits, None, cx);
8409 });
8410
8411 // Adjust selections so that they end before any comment suffixes that
8412 // were inserted.
8413 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8414 let mut selections = this.selections.all::<Point>(cx);
8415 let snapshot = this.buffer.read(cx).read(cx);
8416 for selection in &mut selections {
8417 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8418 match row.cmp(&MultiBufferRow(selection.end.row)) {
8419 Ordering::Less => {
8420 suffixes_inserted.next();
8421 continue;
8422 }
8423 Ordering::Greater => break,
8424 Ordering::Equal => {
8425 if selection.end.column == snapshot.line_len(row) {
8426 if selection.is_empty() {
8427 selection.start.column -= suffix_len as u32;
8428 }
8429 selection.end.column -= suffix_len as u32;
8430 }
8431 break;
8432 }
8433 }
8434 }
8435 }
8436
8437 drop(snapshot);
8438 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8439
8440 let selections = this.selections.all::<Point>(cx);
8441 let selections_on_single_row = selections.windows(2).all(|selections| {
8442 selections[0].start.row == selections[1].start.row
8443 && selections[0].end.row == selections[1].end.row
8444 && selections[0].start.row == selections[0].end.row
8445 });
8446 let selections_selecting = selections
8447 .iter()
8448 .any(|selection| selection.start != selection.end);
8449 let advance_downwards = action.advance_downwards
8450 && selections_on_single_row
8451 && !selections_selecting
8452 && !matches!(this.mode, EditorMode::SingleLine { .. });
8453
8454 if advance_downwards {
8455 let snapshot = this.buffer.read(cx).snapshot(cx);
8456
8457 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8458 s.move_cursors_with(|display_snapshot, display_point, _| {
8459 let mut point = display_point.to_point(display_snapshot);
8460 point.row += 1;
8461 point = snapshot.clip_point(point, Bias::Left);
8462 let display_point = point.to_display_point(display_snapshot);
8463 let goal = SelectionGoal::HorizontalPosition(
8464 display_snapshot
8465 .x_for_display_point(display_point, &text_layout_details)
8466 .into(),
8467 );
8468 (display_point, goal)
8469 })
8470 });
8471 }
8472 });
8473 }
8474
8475 pub fn select_enclosing_symbol(
8476 &mut self,
8477 _: &SelectEnclosingSymbol,
8478 cx: &mut ViewContext<Self>,
8479 ) {
8480 let buffer = self.buffer.read(cx).snapshot(cx);
8481 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8482
8483 fn update_selection(
8484 selection: &Selection<usize>,
8485 buffer_snap: &MultiBufferSnapshot,
8486 ) -> Option<Selection<usize>> {
8487 let cursor = selection.head();
8488 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8489 for symbol in symbols.iter().rev() {
8490 let start = symbol.range.start.to_offset(&buffer_snap);
8491 let end = symbol.range.end.to_offset(&buffer_snap);
8492 let new_range = start..end;
8493 if start < selection.start || end > selection.end {
8494 return Some(Selection {
8495 id: selection.id,
8496 start: new_range.start,
8497 end: new_range.end,
8498 goal: SelectionGoal::None,
8499 reversed: selection.reversed,
8500 });
8501 }
8502 }
8503 None
8504 }
8505
8506 let mut selected_larger_symbol = false;
8507 let new_selections = old_selections
8508 .iter()
8509 .map(|selection| match update_selection(selection, &buffer) {
8510 Some(new_selection) => {
8511 if new_selection.range() != selection.range() {
8512 selected_larger_symbol = true;
8513 }
8514 new_selection
8515 }
8516 None => selection.clone(),
8517 })
8518 .collect::<Vec<_>>();
8519
8520 if selected_larger_symbol {
8521 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8522 s.select(new_selections);
8523 });
8524 }
8525 }
8526
8527 pub fn select_larger_syntax_node(
8528 &mut self,
8529 _: &SelectLargerSyntaxNode,
8530 cx: &mut ViewContext<Self>,
8531 ) {
8532 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8533 let buffer = self.buffer.read(cx).snapshot(cx);
8534 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8535
8536 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8537 let mut selected_larger_node = false;
8538 let new_selections = old_selections
8539 .iter()
8540 .map(|selection| {
8541 let old_range = selection.start..selection.end;
8542 let mut new_range = old_range.clone();
8543 while let Some(containing_range) =
8544 buffer.range_for_syntax_ancestor(new_range.clone())
8545 {
8546 new_range = containing_range;
8547 if !display_map.intersects_fold(new_range.start)
8548 && !display_map.intersects_fold(new_range.end)
8549 {
8550 break;
8551 }
8552 }
8553
8554 selected_larger_node |= new_range != old_range;
8555 Selection {
8556 id: selection.id,
8557 start: new_range.start,
8558 end: new_range.end,
8559 goal: SelectionGoal::None,
8560 reversed: selection.reversed,
8561 }
8562 })
8563 .collect::<Vec<_>>();
8564
8565 if selected_larger_node {
8566 stack.push(old_selections);
8567 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8568 s.select(new_selections);
8569 });
8570 }
8571 self.select_larger_syntax_node_stack = stack;
8572 }
8573
8574 pub fn select_smaller_syntax_node(
8575 &mut self,
8576 _: &SelectSmallerSyntaxNode,
8577 cx: &mut ViewContext<Self>,
8578 ) {
8579 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8580 if let Some(selections) = stack.pop() {
8581 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8582 s.select(selections.to_vec());
8583 });
8584 }
8585 self.select_larger_syntax_node_stack = stack;
8586 }
8587
8588 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8589 if !EditorSettings::get_global(cx).gutter.runnables {
8590 self.clear_tasks();
8591 return Task::ready(());
8592 }
8593 let project = self.project.clone();
8594 cx.spawn(|this, mut cx| async move {
8595 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8596 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8597 }) else {
8598 return;
8599 };
8600
8601 let Some(project) = project else {
8602 return;
8603 };
8604
8605 let hide_runnables = project
8606 .update(&mut cx, |project, cx| {
8607 // Do not display any test indicators in non-dev server remote projects.
8608 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8609 })
8610 .unwrap_or(true);
8611 if hide_runnables {
8612 return;
8613 }
8614 let new_rows =
8615 cx.background_executor()
8616 .spawn({
8617 let snapshot = display_snapshot.clone();
8618 async move {
8619 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8620 }
8621 })
8622 .await;
8623 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8624
8625 this.update(&mut cx, |this, _| {
8626 this.clear_tasks();
8627 for (key, value) in rows {
8628 this.insert_tasks(key, value);
8629 }
8630 })
8631 .ok();
8632 })
8633 }
8634 fn fetch_runnable_ranges(
8635 snapshot: &DisplaySnapshot,
8636 range: Range<Anchor>,
8637 ) -> Vec<language::RunnableRange> {
8638 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8639 }
8640
8641 fn runnable_rows(
8642 project: Model<Project>,
8643 snapshot: DisplaySnapshot,
8644 runnable_ranges: Vec<RunnableRange>,
8645 mut cx: AsyncWindowContext,
8646 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8647 runnable_ranges
8648 .into_iter()
8649 .filter_map(|mut runnable| {
8650 let tasks = cx
8651 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8652 .ok()?;
8653 if tasks.is_empty() {
8654 return None;
8655 }
8656
8657 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8658
8659 let row = snapshot
8660 .buffer_snapshot
8661 .buffer_line_for_row(MultiBufferRow(point.row))?
8662 .1
8663 .start
8664 .row;
8665
8666 let context_range =
8667 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8668 Some((
8669 (runnable.buffer_id, row),
8670 RunnableTasks {
8671 templates: tasks,
8672 offset: MultiBufferOffset(runnable.run_range.start),
8673 context_range,
8674 column: point.column,
8675 extra_variables: runnable.extra_captures,
8676 },
8677 ))
8678 })
8679 .collect()
8680 }
8681
8682 fn templates_with_tags(
8683 project: &Model<Project>,
8684 runnable: &mut Runnable,
8685 cx: &WindowContext<'_>,
8686 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8687 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8688 let (worktree_id, file) = project
8689 .buffer_for_id(runnable.buffer, cx)
8690 .and_then(|buffer| buffer.read(cx).file())
8691 .map(|file| (WorktreeId::from_usize(file.worktree_id()), file.clone()))
8692 .unzip();
8693
8694 (project.task_inventory().clone(), worktree_id, file)
8695 });
8696
8697 let inventory = inventory.read(cx);
8698 let tags = mem::take(&mut runnable.tags);
8699 let mut tags: Vec<_> = tags
8700 .into_iter()
8701 .flat_map(|tag| {
8702 let tag = tag.0.clone();
8703 inventory
8704 .list_tasks(
8705 file.clone(),
8706 Some(runnable.language.clone()),
8707 worktree_id,
8708 cx,
8709 )
8710 .into_iter()
8711 .filter(move |(_, template)| {
8712 template.tags.iter().any(|source_tag| source_tag == &tag)
8713 })
8714 })
8715 .sorted_by_key(|(kind, _)| kind.to_owned())
8716 .collect();
8717 if let Some((leading_tag_source, _)) = tags.first() {
8718 // Strongest source wins; if we have worktree tag binding, prefer that to
8719 // global and language bindings;
8720 // if we have a global binding, prefer that to language binding.
8721 let first_mismatch = tags
8722 .iter()
8723 .position(|(tag_source, _)| tag_source != leading_tag_source);
8724 if let Some(index) = first_mismatch {
8725 tags.truncate(index);
8726 }
8727 }
8728
8729 tags
8730 }
8731
8732 pub fn move_to_enclosing_bracket(
8733 &mut self,
8734 _: &MoveToEnclosingBracket,
8735 cx: &mut ViewContext<Self>,
8736 ) {
8737 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8738 s.move_offsets_with(|snapshot, selection| {
8739 let Some(enclosing_bracket_ranges) =
8740 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8741 else {
8742 return;
8743 };
8744
8745 let mut best_length = usize::MAX;
8746 let mut best_inside = false;
8747 let mut best_in_bracket_range = false;
8748 let mut best_destination = None;
8749 for (open, close) in enclosing_bracket_ranges {
8750 let close = close.to_inclusive();
8751 let length = close.end() - open.start;
8752 let inside = selection.start >= open.end && selection.end <= *close.start();
8753 let in_bracket_range = open.to_inclusive().contains(&selection.head())
8754 || close.contains(&selection.head());
8755
8756 // If best is next to a bracket and current isn't, skip
8757 if !in_bracket_range && best_in_bracket_range {
8758 continue;
8759 }
8760
8761 // Prefer smaller lengths unless best is inside and current isn't
8762 if length > best_length && (best_inside || !inside) {
8763 continue;
8764 }
8765
8766 best_length = length;
8767 best_inside = inside;
8768 best_in_bracket_range = in_bracket_range;
8769 best_destination = Some(
8770 if close.contains(&selection.start) && close.contains(&selection.end) {
8771 if inside {
8772 open.end
8773 } else {
8774 open.start
8775 }
8776 } else {
8777 if inside {
8778 *close.start()
8779 } else {
8780 *close.end()
8781 }
8782 },
8783 );
8784 }
8785
8786 if let Some(destination) = best_destination {
8787 selection.collapse_to(destination, SelectionGoal::None);
8788 }
8789 })
8790 });
8791 }
8792
8793 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
8794 self.end_selection(cx);
8795 self.selection_history.mode = SelectionHistoryMode::Undoing;
8796 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
8797 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8798 self.select_next_state = entry.select_next_state;
8799 self.select_prev_state = entry.select_prev_state;
8800 self.add_selections_state = entry.add_selections_state;
8801 self.request_autoscroll(Autoscroll::newest(), cx);
8802 }
8803 self.selection_history.mode = SelectionHistoryMode::Normal;
8804 }
8805
8806 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
8807 self.end_selection(cx);
8808 self.selection_history.mode = SelectionHistoryMode::Redoing;
8809 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
8810 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8811 self.select_next_state = entry.select_next_state;
8812 self.select_prev_state = entry.select_prev_state;
8813 self.add_selections_state = entry.add_selections_state;
8814 self.request_autoscroll(Autoscroll::newest(), cx);
8815 }
8816 self.selection_history.mode = SelectionHistoryMode::Normal;
8817 }
8818
8819 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
8820 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
8821 }
8822
8823 pub fn expand_excerpts_down(
8824 &mut self,
8825 action: &ExpandExcerptsDown,
8826 cx: &mut ViewContext<Self>,
8827 ) {
8828 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
8829 }
8830
8831 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
8832 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
8833 }
8834
8835 pub fn expand_excerpts_for_direction(
8836 &mut self,
8837 lines: u32,
8838 direction: ExpandExcerptDirection,
8839 cx: &mut ViewContext<Self>,
8840 ) {
8841 let selections = self.selections.disjoint_anchors();
8842
8843 let lines = if lines == 0 {
8844 EditorSettings::get_global(cx).expand_excerpt_lines
8845 } else {
8846 lines
8847 };
8848
8849 self.buffer.update(cx, |buffer, cx| {
8850 buffer.expand_excerpts(
8851 selections
8852 .into_iter()
8853 .map(|selection| selection.head().excerpt_id)
8854 .dedup(),
8855 lines,
8856 direction,
8857 cx,
8858 )
8859 })
8860 }
8861
8862 pub fn expand_excerpt(
8863 &mut self,
8864 excerpt: ExcerptId,
8865 direction: ExpandExcerptDirection,
8866 cx: &mut ViewContext<Self>,
8867 ) {
8868 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
8869 self.buffer.update(cx, |buffer, cx| {
8870 buffer.expand_excerpts([excerpt], lines, direction, cx)
8871 })
8872 }
8873
8874 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8875 self.go_to_diagnostic_impl(Direction::Next, cx)
8876 }
8877
8878 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8879 self.go_to_diagnostic_impl(Direction::Prev, cx)
8880 }
8881
8882 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8883 let buffer = self.buffer.read(cx).snapshot(cx);
8884 let selection = self.selections.newest::<usize>(cx);
8885
8886 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8887 if direction == Direction::Next {
8888 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8889 let (group_id, jump_to) = popover.activation_info();
8890 if self.activate_diagnostics(group_id, cx) {
8891 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8892 let mut new_selection = s.newest_anchor().clone();
8893 new_selection.collapse_to(jump_to, SelectionGoal::None);
8894 s.select_anchors(vec![new_selection.clone()]);
8895 });
8896 }
8897 return;
8898 }
8899 }
8900
8901 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8902 active_diagnostics
8903 .primary_range
8904 .to_offset(&buffer)
8905 .to_inclusive()
8906 });
8907 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8908 if active_primary_range.contains(&selection.head()) {
8909 *active_primary_range.start()
8910 } else {
8911 selection.head()
8912 }
8913 } else {
8914 selection.head()
8915 };
8916 let snapshot = self.snapshot(cx);
8917 loop {
8918 let diagnostics = if direction == Direction::Prev {
8919 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8920 } else {
8921 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8922 }
8923 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8924 let group = diagnostics
8925 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8926 // be sorted in a stable way
8927 // skip until we are at current active diagnostic, if it exists
8928 .skip_while(|entry| {
8929 (match direction {
8930 Direction::Prev => entry.range.start >= search_start,
8931 Direction::Next => entry.range.start <= search_start,
8932 }) && self
8933 .active_diagnostics
8934 .as_ref()
8935 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8936 })
8937 .find_map(|entry| {
8938 if entry.diagnostic.is_primary
8939 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8940 && !entry.range.is_empty()
8941 // if we match with the active diagnostic, skip it
8942 && Some(entry.diagnostic.group_id)
8943 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8944 {
8945 Some((entry.range, entry.diagnostic.group_id))
8946 } else {
8947 None
8948 }
8949 });
8950
8951 if let Some((primary_range, group_id)) = group {
8952 if self.activate_diagnostics(group_id, cx) {
8953 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8954 s.select(vec![Selection {
8955 id: selection.id,
8956 start: primary_range.start,
8957 end: primary_range.start,
8958 reversed: false,
8959 goal: SelectionGoal::None,
8960 }]);
8961 });
8962 }
8963 break;
8964 } else {
8965 // Cycle around to the start of the buffer, potentially moving back to the start of
8966 // the currently active diagnostic.
8967 active_primary_range.take();
8968 if direction == Direction::Prev {
8969 if search_start == buffer.len() {
8970 break;
8971 } else {
8972 search_start = buffer.len();
8973 }
8974 } else if search_start == 0 {
8975 break;
8976 } else {
8977 search_start = 0;
8978 }
8979 }
8980 }
8981 }
8982
8983 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8984 let snapshot = self
8985 .display_map
8986 .update(cx, |display_map, cx| display_map.snapshot(cx));
8987 let selection = self.selections.newest::<Point>(cx);
8988
8989 if !self.seek_in_direction(
8990 &snapshot,
8991 selection.head(),
8992 false,
8993 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8994 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
8995 ),
8996 cx,
8997 ) {
8998 let wrapped_point = Point::zero();
8999 self.seek_in_direction(
9000 &snapshot,
9001 wrapped_point,
9002 true,
9003 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9004 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9005 ),
9006 cx,
9007 );
9008 }
9009 }
9010
9011 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9012 let snapshot = self
9013 .display_map
9014 .update(cx, |display_map, cx| display_map.snapshot(cx));
9015 let selection = self.selections.newest::<Point>(cx);
9016
9017 if !self.seek_in_direction(
9018 &snapshot,
9019 selection.head(),
9020 false,
9021 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
9022 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
9023 ),
9024 cx,
9025 ) {
9026 let wrapped_point = snapshot.buffer_snapshot.max_point();
9027 self.seek_in_direction(
9028 &snapshot,
9029 wrapped_point,
9030 true,
9031 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
9032 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
9033 ),
9034 cx,
9035 );
9036 }
9037 }
9038
9039 fn seek_in_direction(
9040 &mut self,
9041 snapshot: &DisplaySnapshot,
9042 initial_point: Point,
9043 is_wrapped: bool,
9044 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
9045 cx: &mut ViewContext<Editor>,
9046 ) -> bool {
9047 let display_point = initial_point.to_display_point(snapshot);
9048 let mut hunks = hunks
9049 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
9050 .filter(|hunk| is_wrapped || !hunk.contains_display_row(display_point.row()))
9051 .dedup();
9052
9053 if let Some(hunk) = hunks.next() {
9054 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9055 let row = hunk.start_display_row();
9056 let point = DisplayPoint::new(row, 0);
9057 s.select_display_ranges([point..point]);
9058 });
9059
9060 true
9061 } else {
9062 false
9063 }
9064 }
9065
9066 pub fn go_to_definition(
9067 &mut self,
9068 _: &GoToDefinition,
9069 cx: &mut ViewContext<Self>,
9070 ) -> Task<Result<Navigated>> {
9071 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9072 let references = self.find_all_references(&FindAllReferences, cx);
9073 cx.background_executor().spawn(async move {
9074 if definition.await? == Navigated::Yes {
9075 return Ok(Navigated::Yes);
9076 }
9077 if let Some(references) = references {
9078 if references.await? == Navigated::Yes {
9079 return Ok(Navigated::Yes);
9080 }
9081 }
9082
9083 Ok(Navigated::No)
9084 })
9085 }
9086
9087 pub fn go_to_declaration(
9088 &mut self,
9089 _: &GoToDeclaration,
9090 cx: &mut ViewContext<Self>,
9091 ) -> Task<Result<Navigated>> {
9092 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9093 }
9094
9095 pub fn go_to_declaration_split(
9096 &mut self,
9097 _: &GoToDeclaration,
9098 cx: &mut ViewContext<Self>,
9099 ) -> Task<Result<Navigated>> {
9100 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9101 }
9102
9103 pub fn go_to_implementation(
9104 &mut self,
9105 _: &GoToImplementation,
9106 cx: &mut ViewContext<Self>,
9107 ) -> Task<Result<Navigated>> {
9108 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9109 }
9110
9111 pub fn go_to_implementation_split(
9112 &mut self,
9113 _: &GoToImplementationSplit,
9114 cx: &mut ViewContext<Self>,
9115 ) -> Task<Result<Navigated>> {
9116 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9117 }
9118
9119 pub fn go_to_type_definition(
9120 &mut self,
9121 _: &GoToTypeDefinition,
9122 cx: &mut ViewContext<Self>,
9123 ) -> Task<Result<Navigated>> {
9124 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9125 }
9126
9127 pub fn go_to_definition_split(
9128 &mut self,
9129 _: &GoToDefinitionSplit,
9130 cx: &mut ViewContext<Self>,
9131 ) -> Task<Result<Navigated>> {
9132 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9133 }
9134
9135 pub fn go_to_type_definition_split(
9136 &mut self,
9137 _: &GoToTypeDefinitionSplit,
9138 cx: &mut ViewContext<Self>,
9139 ) -> Task<Result<Navigated>> {
9140 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9141 }
9142
9143 fn go_to_definition_of_kind(
9144 &mut self,
9145 kind: GotoDefinitionKind,
9146 split: bool,
9147 cx: &mut ViewContext<Self>,
9148 ) -> Task<Result<Navigated>> {
9149 let Some(workspace) = self.workspace() else {
9150 return Task::ready(Ok(Navigated::No));
9151 };
9152 let buffer = self.buffer.read(cx);
9153 let head = self.selections.newest::<usize>(cx).head();
9154 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9155 text_anchor
9156 } else {
9157 return Task::ready(Ok(Navigated::No));
9158 };
9159
9160 let project = workspace.read(cx).project().clone();
9161 let definitions = project.update(cx, |project, cx| match kind {
9162 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
9163 GotoDefinitionKind::Declaration => project.declaration(&buffer, head, cx),
9164 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
9165 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
9166 });
9167
9168 cx.spawn(|editor, mut cx| async move {
9169 let definitions = definitions.await?;
9170 let navigated = editor
9171 .update(&mut cx, |editor, cx| {
9172 editor.navigate_to_hover_links(
9173 Some(kind),
9174 definitions
9175 .into_iter()
9176 .filter(|location| {
9177 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9178 })
9179 .map(HoverLink::Text)
9180 .collect::<Vec<_>>(),
9181 split,
9182 cx,
9183 )
9184 })?
9185 .await?;
9186 anyhow::Ok(navigated)
9187 })
9188 }
9189
9190 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9191 let position = self.selections.newest_anchor().head();
9192 let Some((buffer, buffer_position)) =
9193 self.buffer.read(cx).text_anchor_for_position(position, cx)
9194 else {
9195 return;
9196 };
9197
9198 cx.spawn(|editor, mut cx| async move {
9199 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9200 editor.update(&mut cx, |_, cx| {
9201 cx.open_url(&url);
9202 })
9203 } else {
9204 Ok(())
9205 }
9206 })
9207 .detach();
9208 }
9209
9210 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9211 let Some(workspace) = self.workspace() else {
9212 return;
9213 };
9214
9215 let position = self.selections.newest_anchor().head();
9216
9217 let Some((buffer, buffer_position)) =
9218 self.buffer.read(cx).text_anchor_for_position(position, cx)
9219 else {
9220 return;
9221 };
9222
9223 let Some(project) = self.project.clone() else {
9224 return;
9225 };
9226
9227 cx.spawn(|_, mut cx| async move {
9228 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9229
9230 if let Some((_, path)) = result {
9231 workspace
9232 .update(&mut cx, |workspace, cx| {
9233 workspace.open_resolved_path(path, cx)
9234 })?
9235 .await?;
9236 }
9237 anyhow::Ok(())
9238 })
9239 .detach();
9240 }
9241
9242 pub(crate) fn navigate_to_hover_links(
9243 &mut self,
9244 kind: Option<GotoDefinitionKind>,
9245 mut definitions: Vec<HoverLink>,
9246 split: bool,
9247 cx: &mut ViewContext<Editor>,
9248 ) -> Task<Result<Navigated>> {
9249 // If there is one definition, just open it directly
9250 if definitions.len() == 1 {
9251 let definition = definitions.pop().unwrap();
9252
9253 enum TargetTaskResult {
9254 Location(Option<Location>),
9255 AlreadyNavigated,
9256 }
9257
9258 let target_task = match definition {
9259 HoverLink::Text(link) => {
9260 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9261 }
9262 HoverLink::InlayHint(lsp_location, server_id) => {
9263 let computation = self.compute_target_location(lsp_location, server_id, cx);
9264 cx.background_executor().spawn(async move {
9265 let location = computation.await?;
9266 Ok(TargetTaskResult::Location(location))
9267 })
9268 }
9269 HoverLink::Url(url) => {
9270 cx.open_url(&url);
9271 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9272 }
9273 HoverLink::File(path) => {
9274 if let Some(workspace) = self.workspace() {
9275 cx.spawn(|_, mut cx| async move {
9276 workspace
9277 .update(&mut cx, |workspace, cx| {
9278 workspace.open_resolved_path(path, cx)
9279 })?
9280 .await
9281 .map(|_| TargetTaskResult::AlreadyNavigated)
9282 })
9283 } else {
9284 Task::ready(Ok(TargetTaskResult::Location(None)))
9285 }
9286 }
9287 };
9288 cx.spawn(|editor, mut cx| async move {
9289 let target = match target_task.await.context("target resolution task")? {
9290 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9291 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9292 TargetTaskResult::Location(Some(target)) => target,
9293 };
9294
9295 editor.update(&mut cx, |editor, cx| {
9296 let Some(workspace) = editor.workspace() else {
9297 return Navigated::No;
9298 };
9299 let pane = workspace.read(cx).active_pane().clone();
9300
9301 let range = target.range.to_offset(target.buffer.read(cx));
9302 let range = editor.range_for_match(&range);
9303
9304 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9305 let buffer = target.buffer.read(cx);
9306 let range = check_multiline_range(buffer, range);
9307 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
9308 s.select_ranges([range]);
9309 });
9310 } else {
9311 cx.window_context().defer(move |cx| {
9312 let target_editor: View<Self> =
9313 workspace.update(cx, |workspace, cx| {
9314 let pane = if split {
9315 workspace.adjacent_pane(cx)
9316 } else {
9317 workspace.active_pane().clone()
9318 };
9319
9320 workspace.open_project_item(
9321 pane,
9322 target.buffer.clone(),
9323 true,
9324 true,
9325 cx,
9326 )
9327 });
9328 target_editor.update(cx, |target_editor, cx| {
9329 // When selecting a definition in a different buffer, disable the nav history
9330 // to avoid creating a history entry at the previous cursor location.
9331 pane.update(cx, |pane, _| pane.disable_history());
9332 let buffer = target.buffer.read(cx);
9333 let range = check_multiline_range(buffer, range);
9334 target_editor.change_selections(
9335 Some(Autoscroll::focused()),
9336 cx,
9337 |s| {
9338 s.select_ranges([range]);
9339 },
9340 );
9341 pane.update(cx, |pane, _| pane.enable_history());
9342 });
9343 });
9344 }
9345 Navigated::Yes
9346 })
9347 })
9348 } else if !definitions.is_empty() {
9349 let replica_id = self.replica_id(cx);
9350 cx.spawn(|editor, mut cx| async move {
9351 let (title, location_tasks, workspace) = editor
9352 .update(&mut cx, |editor, cx| {
9353 let tab_kind = match kind {
9354 Some(GotoDefinitionKind::Implementation) => "Implementations",
9355 _ => "Definitions",
9356 };
9357 let title = definitions
9358 .iter()
9359 .find_map(|definition| match definition {
9360 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9361 let buffer = origin.buffer.read(cx);
9362 format!(
9363 "{} for {}",
9364 tab_kind,
9365 buffer
9366 .text_for_range(origin.range.clone())
9367 .collect::<String>()
9368 )
9369 }),
9370 HoverLink::InlayHint(_, _) => None,
9371 HoverLink::Url(_) => None,
9372 HoverLink::File(_) => None,
9373 })
9374 .unwrap_or(tab_kind.to_string());
9375 let location_tasks = definitions
9376 .into_iter()
9377 .map(|definition| match definition {
9378 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9379 HoverLink::InlayHint(lsp_location, server_id) => {
9380 editor.compute_target_location(lsp_location, server_id, cx)
9381 }
9382 HoverLink::Url(_) => Task::ready(Ok(None)),
9383 HoverLink::File(_) => Task::ready(Ok(None)),
9384 })
9385 .collect::<Vec<_>>();
9386 (title, location_tasks, editor.workspace().clone())
9387 })
9388 .context("location tasks preparation")?;
9389
9390 let locations = futures::future::join_all(location_tasks)
9391 .await
9392 .into_iter()
9393 .filter_map(|location| location.transpose())
9394 .collect::<Result<_>>()
9395 .context("location tasks")?;
9396
9397 let Some(workspace) = workspace else {
9398 return Ok(Navigated::No);
9399 };
9400 let opened = workspace
9401 .update(&mut cx, |workspace, cx| {
9402 Self::open_locations_in_multibuffer(
9403 workspace, locations, replica_id, title, split, cx,
9404 )
9405 })
9406 .ok();
9407
9408 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9409 })
9410 } else {
9411 Task::ready(Ok(Navigated::No))
9412 }
9413 }
9414
9415 fn compute_target_location(
9416 &self,
9417 lsp_location: lsp::Location,
9418 server_id: LanguageServerId,
9419 cx: &mut ViewContext<Editor>,
9420 ) -> Task<anyhow::Result<Option<Location>>> {
9421 let Some(project) = self.project.clone() else {
9422 return Task::Ready(Some(Ok(None)));
9423 };
9424
9425 cx.spawn(move |editor, mut cx| async move {
9426 let location_task = editor.update(&mut cx, |editor, cx| {
9427 project.update(cx, |project, cx| {
9428 let language_server_name =
9429 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
9430 project
9431 .language_server_for_buffer(buffer.read(cx), server_id, cx)
9432 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
9433 });
9434 language_server_name.map(|language_server_name| {
9435 project.open_local_buffer_via_lsp(
9436 lsp_location.uri.clone(),
9437 server_id,
9438 language_server_name,
9439 cx,
9440 )
9441 })
9442 })
9443 })?;
9444 let location = match location_task {
9445 Some(task) => Some({
9446 let target_buffer_handle = task.await.context("open local buffer")?;
9447 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9448 let target_start = target_buffer
9449 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9450 let target_end = target_buffer
9451 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9452 target_buffer.anchor_after(target_start)
9453 ..target_buffer.anchor_before(target_end)
9454 })?;
9455 Location {
9456 buffer: target_buffer_handle,
9457 range,
9458 }
9459 }),
9460 None => None,
9461 };
9462 Ok(location)
9463 })
9464 }
9465
9466 pub fn find_all_references(
9467 &mut self,
9468 _: &FindAllReferences,
9469 cx: &mut ViewContext<Self>,
9470 ) -> Option<Task<Result<Navigated>>> {
9471 let multi_buffer = self.buffer.read(cx);
9472 let selection = self.selections.newest::<usize>(cx);
9473 let head = selection.head();
9474
9475 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9476 let head_anchor = multi_buffer_snapshot.anchor_at(
9477 head,
9478 if head < selection.tail() {
9479 Bias::Right
9480 } else {
9481 Bias::Left
9482 },
9483 );
9484
9485 match self
9486 .find_all_references_task_sources
9487 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9488 {
9489 Ok(_) => {
9490 log::info!(
9491 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9492 );
9493 return None;
9494 }
9495 Err(i) => {
9496 self.find_all_references_task_sources.insert(i, head_anchor);
9497 }
9498 }
9499
9500 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9501 let replica_id = self.replica_id(cx);
9502 let workspace = self.workspace()?;
9503 let project = workspace.read(cx).project().clone();
9504 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9505 Some(cx.spawn(|editor, mut cx| async move {
9506 let _cleanup = defer({
9507 let mut cx = cx.clone();
9508 move || {
9509 let _ = editor.update(&mut cx, |editor, _| {
9510 if let Ok(i) =
9511 editor
9512 .find_all_references_task_sources
9513 .binary_search_by(|anchor| {
9514 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9515 })
9516 {
9517 editor.find_all_references_task_sources.remove(i);
9518 }
9519 });
9520 }
9521 });
9522
9523 let locations = references.await?;
9524 if locations.is_empty() {
9525 return anyhow::Ok(Navigated::No);
9526 }
9527
9528 workspace.update(&mut cx, |workspace, cx| {
9529 let title = locations
9530 .first()
9531 .as_ref()
9532 .map(|location| {
9533 let buffer = location.buffer.read(cx);
9534 format!(
9535 "References to `{}`",
9536 buffer
9537 .text_for_range(location.range.clone())
9538 .collect::<String>()
9539 )
9540 })
9541 .unwrap();
9542 Self::open_locations_in_multibuffer(
9543 workspace, locations, replica_id, title, false, cx,
9544 );
9545 Navigated::Yes
9546 })
9547 }))
9548 }
9549
9550 /// Opens a multibuffer with the given project locations in it
9551 pub fn open_locations_in_multibuffer(
9552 workspace: &mut Workspace,
9553 mut locations: Vec<Location>,
9554 replica_id: ReplicaId,
9555 title: String,
9556 split: bool,
9557 cx: &mut ViewContext<Workspace>,
9558 ) {
9559 // If there are multiple definitions, open them in a multibuffer
9560 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9561 let mut locations = locations.into_iter().peekable();
9562 let mut ranges_to_highlight = Vec::new();
9563 let capability = workspace.project().read(cx).capability();
9564
9565 let excerpt_buffer = cx.new_model(|cx| {
9566 let mut multibuffer = MultiBuffer::new(replica_id, capability);
9567 while let Some(location) = locations.next() {
9568 let buffer = location.buffer.read(cx);
9569 let mut ranges_for_buffer = Vec::new();
9570 let range = location.range.to_offset(buffer);
9571 ranges_for_buffer.push(range.clone());
9572
9573 while let Some(next_location) = locations.peek() {
9574 if next_location.buffer == location.buffer {
9575 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9576 locations.next();
9577 } else {
9578 break;
9579 }
9580 }
9581
9582 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9583 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9584 location.buffer.clone(),
9585 ranges_for_buffer,
9586 DEFAULT_MULTIBUFFER_CONTEXT,
9587 cx,
9588 ))
9589 }
9590
9591 multibuffer.with_title(title)
9592 });
9593
9594 let editor = cx.new_view(|cx| {
9595 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9596 });
9597 editor.update(cx, |editor, cx| {
9598 if let Some(first_range) = ranges_to_highlight.first() {
9599 editor.change_selections(None, cx, |selections| {
9600 selections.clear_disjoint();
9601 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9602 });
9603 }
9604 editor.highlight_background::<Self>(
9605 &ranges_to_highlight,
9606 |theme| theme.editor_highlighted_line_background,
9607 cx,
9608 );
9609 });
9610
9611 let item = Box::new(editor);
9612 let item_id = item.item_id();
9613
9614 if split {
9615 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9616 } else {
9617 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9618 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9619 pane.close_current_preview_item(cx)
9620 } else {
9621 None
9622 }
9623 });
9624 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9625 }
9626 workspace.active_pane().update(cx, |pane, cx| {
9627 pane.set_preview_item_id(Some(item_id), cx);
9628 });
9629 }
9630
9631 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9632 use language::ToOffset as _;
9633
9634 let project = self.project.clone()?;
9635 let selection = self.selections.newest_anchor().clone();
9636 let (cursor_buffer, cursor_buffer_position) = self
9637 .buffer
9638 .read(cx)
9639 .text_anchor_for_position(selection.head(), cx)?;
9640 let (tail_buffer, cursor_buffer_position_end) = self
9641 .buffer
9642 .read(cx)
9643 .text_anchor_for_position(selection.tail(), cx)?;
9644 if tail_buffer != cursor_buffer {
9645 return None;
9646 }
9647
9648 let snapshot = cursor_buffer.read(cx).snapshot();
9649 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9650 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9651 let prepare_rename = project.update(cx, |project, cx| {
9652 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
9653 });
9654 drop(snapshot);
9655
9656 Some(cx.spawn(|this, mut cx| async move {
9657 let rename_range = if let Some(range) = prepare_rename.await? {
9658 Some(range)
9659 } else {
9660 this.update(&mut cx, |this, cx| {
9661 let buffer = this.buffer.read(cx).snapshot(cx);
9662 let mut buffer_highlights = this
9663 .document_highlights_for_position(selection.head(), &buffer)
9664 .filter(|highlight| {
9665 highlight.start.excerpt_id == selection.head().excerpt_id
9666 && highlight.end.excerpt_id == selection.head().excerpt_id
9667 });
9668 buffer_highlights
9669 .next()
9670 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9671 })?
9672 };
9673 if let Some(rename_range) = rename_range {
9674 this.update(&mut cx, |this, cx| {
9675 let snapshot = cursor_buffer.read(cx).snapshot();
9676 let rename_buffer_range = rename_range.to_offset(&snapshot);
9677 let cursor_offset_in_rename_range =
9678 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9679 let cursor_offset_in_rename_range_end =
9680 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9681
9682 this.take_rename(false, cx);
9683 let buffer = this.buffer.read(cx).read(cx);
9684 let cursor_offset = selection.head().to_offset(&buffer);
9685 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9686 let rename_end = rename_start + rename_buffer_range.len();
9687 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9688 let mut old_highlight_id = None;
9689 let old_name: Arc<str> = buffer
9690 .chunks(rename_start..rename_end, true)
9691 .map(|chunk| {
9692 if old_highlight_id.is_none() {
9693 old_highlight_id = chunk.syntax_highlight_id;
9694 }
9695 chunk.text
9696 })
9697 .collect::<String>()
9698 .into();
9699
9700 drop(buffer);
9701
9702 // Position the selection in the rename editor so that it matches the current selection.
9703 this.show_local_selections = false;
9704 let rename_editor = cx.new_view(|cx| {
9705 let mut editor = Editor::single_line(cx);
9706 editor.buffer.update(cx, |buffer, cx| {
9707 buffer.edit([(0..0, old_name.clone())], None, cx)
9708 });
9709 let rename_selection_range = match cursor_offset_in_rename_range
9710 .cmp(&cursor_offset_in_rename_range_end)
9711 {
9712 Ordering::Equal => {
9713 editor.select_all(&SelectAll, cx);
9714 return editor;
9715 }
9716 Ordering::Less => {
9717 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
9718 }
9719 Ordering::Greater => {
9720 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
9721 }
9722 };
9723 if rename_selection_range.end > old_name.len() {
9724 editor.select_all(&SelectAll, cx);
9725 } else {
9726 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9727 s.select_ranges([rename_selection_range]);
9728 });
9729 }
9730 editor
9731 });
9732 cx.subscribe(&rename_editor, |_, _, e, cx| match e {
9733 EditorEvent::Focused => cx.emit(EditorEvent::FocusedIn),
9734 _ => {}
9735 })
9736 .detach();
9737
9738 let write_highlights =
9739 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
9740 let read_highlights =
9741 this.clear_background_highlights::<DocumentHighlightRead>(cx);
9742 let ranges = write_highlights
9743 .iter()
9744 .flat_map(|(_, ranges)| ranges.iter())
9745 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
9746 .cloned()
9747 .collect();
9748
9749 this.highlight_text::<Rename>(
9750 ranges,
9751 HighlightStyle {
9752 fade_out: Some(0.6),
9753 ..Default::default()
9754 },
9755 cx,
9756 );
9757 let rename_focus_handle = rename_editor.focus_handle(cx);
9758 cx.focus(&rename_focus_handle);
9759 let block_id = this.insert_blocks(
9760 [BlockProperties {
9761 style: BlockStyle::Flex,
9762 position: range.start,
9763 height: 1,
9764 render: Box::new({
9765 let rename_editor = rename_editor.clone();
9766 move |cx: &mut BlockContext| {
9767 let mut text_style = cx.editor_style.text.clone();
9768 if let Some(highlight_style) = old_highlight_id
9769 .and_then(|h| h.style(&cx.editor_style.syntax))
9770 {
9771 text_style = text_style.highlight(highlight_style);
9772 }
9773 div()
9774 .pl(cx.anchor_x)
9775 .child(EditorElement::new(
9776 &rename_editor,
9777 EditorStyle {
9778 background: cx.theme().system().transparent,
9779 local_player: cx.editor_style.local_player,
9780 text: text_style,
9781 scrollbar_width: cx.editor_style.scrollbar_width,
9782 syntax: cx.editor_style.syntax.clone(),
9783 status: cx.editor_style.status.clone(),
9784 inlay_hints_style: HighlightStyle {
9785 color: Some(cx.theme().status().hint),
9786 font_weight: Some(FontWeight::BOLD),
9787 ..HighlightStyle::default()
9788 },
9789 suggestions_style: HighlightStyle {
9790 color: Some(cx.theme().status().predictive),
9791 ..HighlightStyle::default()
9792 },
9793 ..EditorStyle::default()
9794 },
9795 ))
9796 .into_any_element()
9797 }
9798 }),
9799 disposition: BlockDisposition::Below,
9800 priority: 0,
9801 }],
9802 Some(Autoscroll::fit()),
9803 cx,
9804 )[0];
9805 this.pending_rename = Some(RenameState {
9806 range,
9807 old_name,
9808 editor: rename_editor,
9809 block_id,
9810 });
9811 })?;
9812 }
9813
9814 Ok(())
9815 }))
9816 }
9817
9818 pub fn confirm_rename(
9819 &mut self,
9820 _: &ConfirmRename,
9821 cx: &mut ViewContext<Self>,
9822 ) -> Option<Task<Result<()>>> {
9823 let rename = self.take_rename(false, cx)?;
9824 let workspace = self.workspace()?;
9825 let (start_buffer, start) = self
9826 .buffer
9827 .read(cx)
9828 .text_anchor_for_position(rename.range.start, cx)?;
9829 let (end_buffer, end) = self
9830 .buffer
9831 .read(cx)
9832 .text_anchor_for_position(rename.range.end, cx)?;
9833 if start_buffer != end_buffer {
9834 return None;
9835 }
9836
9837 let buffer = start_buffer;
9838 let range = start..end;
9839 let old_name = rename.old_name;
9840 let new_name = rename.editor.read(cx).text(cx);
9841
9842 let rename = workspace
9843 .read(cx)
9844 .project()
9845 .clone()
9846 .update(cx, |project, cx| {
9847 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
9848 });
9849 let workspace = workspace.downgrade();
9850
9851 Some(cx.spawn(|editor, mut cx| async move {
9852 let project_transaction = rename.await?;
9853 Self::open_project_transaction(
9854 &editor,
9855 workspace,
9856 project_transaction,
9857 format!("Rename: {} → {}", old_name, new_name),
9858 cx.clone(),
9859 )
9860 .await?;
9861
9862 editor.update(&mut cx, |editor, cx| {
9863 editor.refresh_document_highlights(cx);
9864 })?;
9865 Ok(())
9866 }))
9867 }
9868
9869 fn take_rename(
9870 &mut self,
9871 moving_cursor: bool,
9872 cx: &mut ViewContext<Self>,
9873 ) -> Option<RenameState> {
9874 let rename = self.pending_rename.take()?;
9875 if rename.editor.focus_handle(cx).is_focused(cx) {
9876 cx.focus(&self.focus_handle);
9877 }
9878
9879 self.remove_blocks(
9880 [rename.block_id].into_iter().collect(),
9881 Some(Autoscroll::fit()),
9882 cx,
9883 );
9884 self.clear_highlights::<Rename>(cx);
9885 self.show_local_selections = true;
9886
9887 if moving_cursor {
9888 let rename_editor = rename.editor.read(cx);
9889 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
9890
9891 // Update the selection to match the position of the selection inside
9892 // the rename editor.
9893 let snapshot = self.buffer.read(cx).read(cx);
9894 let rename_range = rename.range.to_offset(&snapshot);
9895 let cursor_in_editor = snapshot
9896 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
9897 .min(rename_range.end);
9898 drop(snapshot);
9899
9900 self.change_selections(None, cx, |s| {
9901 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
9902 });
9903 } else {
9904 self.refresh_document_highlights(cx);
9905 }
9906
9907 Some(rename)
9908 }
9909
9910 pub fn pending_rename(&self) -> Option<&RenameState> {
9911 self.pending_rename.as_ref()
9912 }
9913
9914 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9915 let project = match &self.project {
9916 Some(project) => project.clone(),
9917 None => return None,
9918 };
9919
9920 Some(self.perform_format(project, FormatTrigger::Manual, cx))
9921 }
9922
9923 fn perform_format(
9924 &mut self,
9925 project: Model<Project>,
9926 trigger: FormatTrigger,
9927 cx: &mut ViewContext<Self>,
9928 ) -> Task<Result<()>> {
9929 let buffer = self.buffer().clone();
9930 let mut buffers = buffer.read(cx).all_buffers();
9931 if trigger == FormatTrigger::Save {
9932 buffers.retain(|buffer| buffer.read(cx).is_dirty());
9933 }
9934
9935 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
9936 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
9937
9938 cx.spawn(|_, mut cx| async move {
9939 let transaction = futures::select_biased! {
9940 () = timeout => {
9941 log::warn!("timed out waiting for formatting");
9942 None
9943 }
9944 transaction = format.log_err().fuse() => transaction,
9945 };
9946
9947 buffer
9948 .update(&mut cx, |buffer, cx| {
9949 if let Some(transaction) = transaction {
9950 if !buffer.is_singleton() {
9951 buffer.push_transaction(&transaction.0, cx);
9952 }
9953 }
9954
9955 cx.notify();
9956 })
9957 .ok();
9958
9959 Ok(())
9960 })
9961 }
9962
9963 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
9964 if let Some(project) = self.project.clone() {
9965 self.buffer.update(cx, |multi_buffer, cx| {
9966 project.update(cx, |project, cx| {
9967 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
9968 });
9969 })
9970 }
9971 }
9972
9973 fn cancel_language_server_work(
9974 &mut self,
9975 _: &CancelLanguageServerWork,
9976 cx: &mut ViewContext<Self>,
9977 ) {
9978 if let Some(project) = self.project.clone() {
9979 self.buffer.update(cx, |multi_buffer, cx| {
9980 project.update(cx, |project, cx| {
9981 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
9982 });
9983 })
9984 }
9985 }
9986
9987 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
9988 cx.show_character_palette();
9989 }
9990
9991 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
9992 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
9993 let buffer = self.buffer.read(cx).snapshot(cx);
9994 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
9995 let is_valid = buffer
9996 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
9997 .any(|entry| {
9998 entry.diagnostic.is_primary
9999 && !entry.range.is_empty()
10000 && entry.range.start == primary_range_start
10001 && entry.diagnostic.message == active_diagnostics.primary_message
10002 });
10003
10004 if is_valid != active_diagnostics.is_valid {
10005 active_diagnostics.is_valid = is_valid;
10006 let mut new_styles = HashMap::default();
10007 for (block_id, diagnostic) in &active_diagnostics.blocks {
10008 new_styles.insert(
10009 *block_id,
10010 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10011 );
10012 }
10013 self.display_map.update(cx, |display_map, _cx| {
10014 display_map.replace_blocks(new_styles)
10015 });
10016 }
10017 }
10018 }
10019
10020 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10021 self.dismiss_diagnostics(cx);
10022 let snapshot = self.snapshot(cx);
10023 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10024 let buffer = self.buffer.read(cx).snapshot(cx);
10025
10026 let mut primary_range = None;
10027 let mut primary_message = None;
10028 let mut group_end = Point::zero();
10029 let diagnostic_group = buffer
10030 .diagnostic_group::<MultiBufferPoint>(group_id)
10031 .filter_map(|entry| {
10032 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10033 && (entry.range.start.row == entry.range.end.row
10034 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10035 {
10036 return None;
10037 }
10038 if entry.range.end > group_end {
10039 group_end = entry.range.end;
10040 }
10041 if entry.diagnostic.is_primary {
10042 primary_range = Some(entry.range.clone());
10043 primary_message = Some(entry.diagnostic.message.clone());
10044 }
10045 Some(entry)
10046 })
10047 .collect::<Vec<_>>();
10048 let primary_range = primary_range?;
10049 let primary_message = primary_message?;
10050 let primary_range =
10051 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10052
10053 let blocks = display_map
10054 .insert_blocks(
10055 diagnostic_group.iter().map(|entry| {
10056 let diagnostic = entry.diagnostic.clone();
10057 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10058 BlockProperties {
10059 style: BlockStyle::Fixed,
10060 position: buffer.anchor_after(entry.range.start),
10061 height: message_height,
10062 render: diagnostic_block_renderer(diagnostic, None, true, true),
10063 disposition: BlockDisposition::Below,
10064 priority: 0,
10065 }
10066 }),
10067 cx,
10068 )
10069 .into_iter()
10070 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10071 .collect();
10072
10073 Some(ActiveDiagnosticGroup {
10074 primary_range,
10075 primary_message,
10076 group_id,
10077 blocks,
10078 is_valid: true,
10079 })
10080 });
10081 self.active_diagnostics.is_some()
10082 }
10083
10084 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10085 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10086 self.display_map.update(cx, |display_map, cx| {
10087 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10088 });
10089 cx.notify();
10090 }
10091 }
10092
10093 pub fn set_selections_from_remote(
10094 &mut self,
10095 selections: Vec<Selection<Anchor>>,
10096 pending_selection: Option<Selection<Anchor>>,
10097 cx: &mut ViewContext<Self>,
10098 ) {
10099 let old_cursor_position = self.selections.newest_anchor().head();
10100 self.selections.change_with(cx, |s| {
10101 s.select_anchors(selections);
10102 if let Some(pending_selection) = pending_selection {
10103 s.set_pending(pending_selection, SelectMode::Character);
10104 } else {
10105 s.clear_pending();
10106 }
10107 });
10108 self.selections_did_change(false, &old_cursor_position, true, cx);
10109 }
10110
10111 fn push_to_selection_history(&mut self) {
10112 self.selection_history.push(SelectionHistoryEntry {
10113 selections: self.selections.disjoint_anchors(),
10114 select_next_state: self.select_next_state.clone(),
10115 select_prev_state: self.select_prev_state.clone(),
10116 add_selections_state: self.add_selections_state.clone(),
10117 });
10118 }
10119
10120 pub fn transact(
10121 &mut self,
10122 cx: &mut ViewContext<Self>,
10123 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10124 ) -> Option<TransactionId> {
10125 self.start_transaction_at(Instant::now(), cx);
10126 update(self, cx);
10127 self.end_transaction_at(Instant::now(), cx)
10128 }
10129
10130 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10131 self.end_selection(cx);
10132 if let Some(tx_id) = self
10133 .buffer
10134 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10135 {
10136 self.selection_history
10137 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10138 cx.emit(EditorEvent::TransactionBegun {
10139 transaction_id: tx_id,
10140 })
10141 }
10142 }
10143
10144 fn end_transaction_at(
10145 &mut self,
10146 now: Instant,
10147 cx: &mut ViewContext<Self>,
10148 ) -> Option<TransactionId> {
10149 if let Some(transaction_id) = self
10150 .buffer
10151 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10152 {
10153 if let Some((_, end_selections)) =
10154 self.selection_history.transaction_mut(transaction_id)
10155 {
10156 *end_selections = Some(self.selections.disjoint_anchors());
10157 } else {
10158 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10159 }
10160
10161 cx.emit(EditorEvent::Edited { transaction_id });
10162 Some(transaction_id)
10163 } else {
10164 None
10165 }
10166 }
10167
10168 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10169 let mut fold_ranges = Vec::new();
10170
10171 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10172
10173 let selections = self.selections.all_adjusted(cx);
10174 for selection in selections {
10175 let range = selection.range().sorted();
10176 let buffer_start_row = range.start.row;
10177
10178 for row in (0..=range.end.row).rev() {
10179 if let Some((foldable_range, fold_text)) =
10180 display_map.foldable_range(MultiBufferRow(row))
10181 {
10182 if foldable_range.end.row >= buffer_start_row {
10183 fold_ranges.push((foldable_range, fold_text));
10184 if row <= range.start.row {
10185 break;
10186 }
10187 }
10188 }
10189 }
10190 }
10191
10192 self.fold_ranges(fold_ranges, true, cx);
10193 }
10194
10195 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10196 let buffer_row = fold_at.buffer_row;
10197 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10198
10199 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
10200 let autoscroll = self
10201 .selections
10202 .all::<Point>(cx)
10203 .iter()
10204 .any(|selection| fold_range.overlaps(&selection.range()));
10205
10206 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
10207 }
10208 }
10209
10210 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10211 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10212 let buffer = &display_map.buffer_snapshot;
10213 let selections = self.selections.all::<Point>(cx);
10214 let ranges = selections
10215 .iter()
10216 .map(|s| {
10217 let range = s.display_range(&display_map).sorted();
10218 let mut start = range.start.to_point(&display_map);
10219 let mut end = range.end.to_point(&display_map);
10220 start.column = 0;
10221 end.column = buffer.line_len(MultiBufferRow(end.row));
10222 start..end
10223 })
10224 .collect::<Vec<_>>();
10225
10226 self.unfold_ranges(ranges, true, true, cx);
10227 }
10228
10229 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10230 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10231
10232 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10233 ..Point::new(
10234 unfold_at.buffer_row.0,
10235 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10236 );
10237
10238 let autoscroll = self
10239 .selections
10240 .all::<Point>(cx)
10241 .iter()
10242 .any(|selection| selection.range().overlaps(&intersection_range));
10243
10244 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
10245 }
10246
10247 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10248 let selections = self.selections.all::<Point>(cx);
10249 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10250 let line_mode = self.selections.line_mode;
10251 let ranges = selections.into_iter().map(|s| {
10252 if line_mode {
10253 let start = Point::new(s.start.row, 0);
10254 let end = Point::new(
10255 s.end.row,
10256 display_map
10257 .buffer_snapshot
10258 .line_len(MultiBufferRow(s.end.row)),
10259 );
10260 (start..end, display_map.fold_placeholder.clone())
10261 } else {
10262 (s.start..s.end, display_map.fold_placeholder.clone())
10263 }
10264 });
10265 self.fold_ranges(ranges, true, cx);
10266 }
10267
10268 pub fn fold_ranges<T: ToOffset + Clone>(
10269 &mut self,
10270 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
10271 auto_scroll: bool,
10272 cx: &mut ViewContext<Self>,
10273 ) {
10274 let mut fold_ranges = Vec::new();
10275 let mut buffers_affected = HashMap::default();
10276 let multi_buffer = self.buffer().read(cx);
10277 for (fold_range, fold_text) in ranges {
10278 if let Some((_, buffer, _)) =
10279 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
10280 {
10281 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10282 };
10283 fold_ranges.push((fold_range, fold_text));
10284 }
10285
10286 let mut ranges = fold_ranges.into_iter().peekable();
10287 if ranges.peek().is_some() {
10288 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
10289
10290 if auto_scroll {
10291 self.request_autoscroll(Autoscroll::fit(), cx);
10292 }
10293
10294 for buffer in buffers_affected.into_values() {
10295 self.sync_expanded_diff_hunks(buffer, cx);
10296 }
10297
10298 cx.notify();
10299
10300 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10301 // Clear diagnostics block when folding a range that contains it.
10302 let snapshot = self.snapshot(cx);
10303 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10304 drop(snapshot);
10305 self.active_diagnostics = Some(active_diagnostics);
10306 self.dismiss_diagnostics(cx);
10307 } else {
10308 self.active_diagnostics = Some(active_diagnostics);
10309 }
10310 }
10311
10312 self.scrollbar_marker_state.dirty = true;
10313 }
10314 }
10315
10316 pub fn unfold_ranges<T: ToOffset + Clone>(
10317 &mut self,
10318 ranges: impl IntoIterator<Item = Range<T>>,
10319 inclusive: bool,
10320 auto_scroll: bool,
10321 cx: &mut ViewContext<Self>,
10322 ) {
10323 let mut unfold_ranges = Vec::new();
10324 let mut buffers_affected = HashMap::default();
10325 let multi_buffer = self.buffer().read(cx);
10326 for range in ranges {
10327 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10328 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10329 };
10330 unfold_ranges.push(range);
10331 }
10332
10333 let mut ranges = unfold_ranges.into_iter().peekable();
10334 if ranges.peek().is_some() {
10335 self.display_map
10336 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
10337 if auto_scroll {
10338 self.request_autoscroll(Autoscroll::fit(), cx);
10339 }
10340
10341 for buffer in buffers_affected.into_values() {
10342 self.sync_expanded_diff_hunks(buffer, cx);
10343 }
10344
10345 cx.notify();
10346 self.scrollbar_marker_state.dirty = true;
10347 self.active_indent_guides_state.dirty = true;
10348 }
10349 }
10350
10351 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10352 if hovered != self.gutter_hovered {
10353 self.gutter_hovered = hovered;
10354 cx.notify();
10355 }
10356 }
10357
10358 pub fn insert_blocks(
10359 &mut self,
10360 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
10361 autoscroll: Option<Autoscroll>,
10362 cx: &mut ViewContext<Self>,
10363 ) -> Vec<CustomBlockId> {
10364 let blocks = self
10365 .display_map
10366 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
10367 if let Some(autoscroll) = autoscroll {
10368 self.request_autoscroll(autoscroll, cx);
10369 }
10370 cx.notify();
10371 blocks
10372 }
10373
10374 pub fn resize_blocks(
10375 &mut self,
10376 heights: HashMap<CustomBlockId, u32>,
10377 autoscroll: Option<Autoscroll>,
10378 cx: &mut ViewContext<Self>,
10379 ) {
10380 self.display_map
10381 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
10382 if let Some(autoscroll) = autoscroll {
10383 self.request_autoscroll(autoscroll, cx);
10384 }
10385 cx.notify();
10386 }
10387
10388 pub fn replace_blocks(
10389 &mut self,
10390 renderers: HashMap<CustomBlockId, RenderBlock>,
10391 autoscroll: Option<Autoscroll>,
10392 cx: &mut ViewContext<Self>,
10393 ) {
10394 self.display_map
10395 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
10396 if let Some(autoscroll) = autoscroll {
10397 self.request_autoscroll(autoscroll, cx);
10398 }
10399 cx.notify();
10400 }
10401
10402 pub fn remove_blocks(
10403 &mut self,
10404 block_ids: HashSet<CustomBlockId>,
10405 autoscroll: Option<Autoscroll>,
10406 cx: &mut ViewContext<Self>,
10407 ) {
10408 self.display_map.update(cx, |display_map, cx| {
10409 display_map.remove_blocks(block_ids, cx)
10410 });
10411 if let Some(autoscroll) = autoscroll {
10412 self.request_autoscroll(autoscroll, cx);
10413 }
10414 cx.notify();
10415 }
10416
10417 pub fn row_for_block(
10418 &self,
10419 block_id: CustomBlockId,
10420 cx: &mut ViewContext<Self>,
10421 ) -> Option<DisplayRow> {
10422 self.display_map
10423 .update(cx, |map, cx| map.row_for_block(block_id, cx))
10424 }
10425
10426 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
10427 self.focused_block = Some(focused_block);
10428 }
10429
10430 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
10431 self.focused_block.take()
10432 }
10433
10434 pub fn insert_creases(
10435 &mut self,
10436 creases: impl IntoIterator<Item = Crease>,
10437 cx: &mut ViewContext<Self>,
10438 ) -> Vec<CreaseId> {
10439 self.display_map
10440 .update(cx, |map, cx| map.insert_creases(creases, cx))
10441 }
10442
10443 pub fn remove_creases(
10444 &mut self,
10445 ids: impl IntoIterator<Item = CreaseId>,
10446 cx: &mut ViewContext<Self>,
10447 ) {
10448 self.display_map
10449 .update(cx, |map, cx| map.remove_creases(ids, cx));
10450 }
10451
10452 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
10453 self.display_map
10454 .update(cx, |map, cx| map.snapshot(cx))
10455 .longest_row()
10456 }
10457
10458 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
10459 self.display_map
10460 .update(cx, |map, cx| map.snapshot(cx))
10461 .max_point()
10462 }
10463
10464 pub fn text(&self, cx: &AppContext) -> String {
10465 self.buffer.read(cx).read(cx).text()
10466 }
10467
10468 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
10469 let text = self.text(cx);
10470 let text = text.trim();
10471
10472 if text.is_empty() {
10473 return None;
10474 }
10475
10476 Some(text.to_string())
10477 }
10478
10479 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
10480 self.transact(cx, |this, cx| {
10481 this.buffer
10482 .read(cx)
10483 .as_singleton()
10484 .expect("you can only call set_text on editors for singleton buffers")
10485 .update(cx, |buffer, cx| buffer.set_text(text, cx));
10486 });
10487 }
10488
10489 pub fn display_text(&self, cx: &mut AppContext) -> String {
10490 self.display_map
10491 .update(cx, |map, cx| map.snapshot(cx))
10492 .text()
10493 }
10494
10495 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
10496 let mut wrap_guides = smallvec::smallvec![];
10497
10498 if self.show_wrap_guides == Some(false) {
10499 return wrap_guides;
10500 }
10501
10502 let settings = self.buffer.read(cx).settings_at(0, cx);
10503 if settings.show_wrap_guides {
10504 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
10505 wrap_guides.push((soft_wrap as usize, true));
10506 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
10507 wrap_guides.push((soft_wrap as usize, true));
10508 }
10509 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
10510 }
10511
10512 wrap_guides
10513 }
10514
10515 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
10516 let settings = self.buffer.read(cx).settings_at(0, cx);
10517 let mode = self
10518 .soft_wrap_mode_override
10519 .unwrap_or_else(|| settings.soft_wrap);
10520 match mode {
10521 language_settings::SoftWrap::None => SoftWrap::None,
10522 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
10523 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
10524 language_settings::SoftWrap::PreferredLineLength => {
10525 SoftWrap::Column(settings.preferred_line_length)
10526 }
10527 language_settings::SoftWrap::Bounded => {
10528 SoftWrap::Bounded(settings.preferred_line_length)
10529 }
10530 }
10531 }
10532
10533 pub fn set_soft_wrap_mode(
10534 &mut self,
10535 mode: language_settings::SoftWrap,
10536 cx: &mut ViewContext<Self>,
10537 ) {
10538 self.soft_wrap_mode_override = Some(mode);
10539 cx.notify();
10540 }
10541
10542 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
10543 let rem_size = cx.rem_size();
10544 self.display_map.update(cx, |map, cx| {
10545 map.set_font(
10546 style.text.font(),
10547 style.text.font_size.to_pixels(rem_size),
10548 cx,
10549 )
10550 });
10551 self.style = Some(style);
10552 }
10553
10554 pub fn style(&self) -> Option<&EditorStyle> {
10555 self.style.as_ref()
10556 }
10557
10558 // Called by the element. This method is not designed to be called outside of the editor
10559 // element's layout code because it does not notify when rewrapping is computed synchronously.
10560 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
10561 self.display_map
10562 .update(cx, |map, cx| map.set_wrap_width(width, cx))
10563 }
10564
10565 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
10566 if self.soft_wrap_mode_override.is_some() {
10567 self.soft_wrap_mode_override.take();
10568 } else {
10569 let soft_wrap = match self.soft_wrap_mode(cx) {
10570 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
10571 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
10572 language_settings::SoftWrap::PreferLine
10573 }
10574 };
10575 self.soft_wrap_mode_override = Some(soft_wrap);
10576 }
10577 cx.notify();
10578 }
10579
10580 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
10581 let Some(workspace) = self.workspace() else {
10582 return;
10583 };
10584 let fs = workspace.read(cx).app_state().fs.clone();
10585 let current_show = TabBarSettings::get_global(cx).show;
10586 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
10587 setting.show = Some(!current_show);
10588 });
10589 }
10590
10591 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
10592 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
10593 self.buffer
10594 .read(cx)
10595 .settings_at(0, cx)
10596 .indent_guides
10597 .enabled
10598 });
10599 self.show_indent_guides = Some(!currently_enabled);
10600 cx.notify();
10601 }
10602
10603 fn should_show_indent_guides(&self) -> Option<bool> {
10604 self.show_indent_guides
10605 }
10606
10607 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
10608 let mut editor_settings = EditorSettings::get_global(cx).clone();
10609 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
10610 EditorSettings::override_global(editor_settings, cx);
10611 }
10612
10613 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
10614 self.show_gutter = show_gutter;
10615 cx.notify();
10616 }
10617
10618 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
10619 self.show_line_numbers = Some(show_line_numbers);
10620 cx.notify();
10621 }
10622
10623 pub fn set_show_git_diff_gutter(
10624 &mut self,
10625 show_git_diff_gutter: bool,
10626 cx: &mut ViewContext<Self>,
10627 ) {
10628 self.show_git_diff_gutter = Some(show_git_diff_gutter);
10629 cx.notify();
10630 }
10631
10632 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
10633 self.show_code_actions = Some(show_code_actions);
10634 cx.notify();
10635 }
10636
10637 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
10638 self.show_runnables = Some(show_runnables);
10639 cx.notify();
10640 }
10641
10642 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
10643 if self.display_map.read(cx).masked != masked {
10644 self.display_map.update(cx, |map, _| map.masked = masked);
10645 }
10646 cx.notify()
10647 }
10648
10649 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
10650 self.show_wrap_guides = Some(show_wrap_guides);
10651 cx.notify();
10652 }
10653
10654 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
10655 self.show_indent_guides = Some(show_indent_guides);
10656 cx.notify();
10657 }
10658
10659 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
10660 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10661 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10662 if let Some(dir) = file.abs_path(cx).parent() {
10663 return Some(dir.to_owned());
10664 }
10665 }
10666
10667 if let Some(project_path) = buffer.read(cx).project_path(cx) {
10668 return Some(project_path.path.to_path_buf());
10669 }
10670 }
10671
10672 None
10673 }
10674
10675 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
10676 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10677 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10678 cx.reveal_path(&file.abs_path(cx));
10679 }
10680 }
10681 }
10682
10683 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
10684 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10685 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10686 if let Some(path) = file.abs_path(cx).to_str() {
10687 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
10688 }
10689 }
10690 }
10691 }
10692
10693 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
10694 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10695 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10696 if let Some(path) = file.path().to_str() {
10697 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
10698 }
10699 }
10700 }
10701 }
10702
10703 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
10704 self.show_git_blame_gutter = !self.show_git_blame_gutter;
10705
10706 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
10707 self.start_git_blame(true, cx);
10708 }
10709
10710 cx.notify();
10711 }
10712
10713 pub fn toggle_git_blame_inline(
10714 &mut self,
10715 _: &ToggleGitBlameInline,
10716 cx: &mut ViewContext<Self>,
10717 ) {
10718 self.toggle_git_blame_inline_internal(true, cx);
10719 cx.notify();
10720 }
10721
10722 pub fn git_blame_inline_enabled(&self) -> bool {
10723 self.git_blame_inline_enabled
10724 }
10725
10726 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
10727 self.show_selection_menu = self
10728 .show_selection_menu
10729 .map(|show_selections_menu| !show_selections_menu)
10730 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
10731
10732 cx.notify();
10733 }
10734
10735 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
10736 self.show_selection_menu
10737 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
10738 }
10739
10740 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
10741 if let Some(project) = self.project.as_ref() {
10742 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
10743 return;
10744 };
10745
10746 if buffer.read(cx).file().is_none() {
10747 return;
10748 }
10749
10750 let focused = self.focus_handle(cx).contains_focused(cx);
10751
10752 let project = project.clone();
10753 let blame =
10754 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
10755 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
10756 self.blame = Some(blame);
10757 }
10758 }
10759
10760 fn toggle_git_blame_inline_internal(
10761 &mut self,
10762 user_triggered: bool,
10763 cx: &mut ViewContext<Self>,
10764 ) {
10765 if self.git_blame_inline_enabled {
10766 self.git_blame_inline_enabled = false;
10767 self.show_git_blame_inline = false;
10768 self.show_git_blame_inline_delay_task.take();
10769 } else {
10770 self.git_blame_inline_enabled = true;
10771 self.start_git_blame_inline(user_triggered, cx);
10772 }
10773
10774 cx.notify();
10775 }
10776
10777 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
10778 self.start_git_blame(user_triggered, cx);
10779
10780 if ProjectSettings::get_global(cx)
10781 .git
10782 .inline_blame_delay()
10783 .is_some()
10784 {
10785 self.start_inline_blame_timer(cx);
10786 } else {
10787 self.show_git_blame_inline = true
10788 }
10789 }
10790
10791 pub fn blame(&self) -> Option<&Model<GitBlame>> {
10792 self.blame.as_ref()
10793 }
10794
10795 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
10796 self.show_git_blame_gutter && self.has_blame_entries(cx)
10797 }
10798
10799 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
10800 self.show_git_blame_inline
10801 && self.focus_handle.is_focused(cx)
10802 && !self.newest_selection_head_on_empty_line(cx)
10803 && self.has_blame_entries(cx)
10804 }
10805
10806 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
10807 self.blame()
10808 .map_or(false, |blame| blame.read(cx).has_generated_entries())
10809 }
10810
10811 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
10812 let cursor_anchor = self.selections.newest_anchor().head();
10813
10814 let snapshot = self.buffer.read(cx).snapshot(cx);
10815 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
10816
10817 snapshot.line_len(buffer_row) == 0
10818 }
10819
10820 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
10821 let (path, selection, repo) = maybe!({
10822 let project_handle = self.project.as_ref()?.clone();
10823 let project = project_handle.read(cx);
10824
10825 let selection = self.selections.newest::<Point>(cx);
10826 let selection_range = selection.range();
10827
10828 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10829 (buffer, selection_range.start.row..selection_range.end.row)
10830 } else {
10831 let buffer_ranges = self
10832 .buffer()
10833 .read(cx)
10834 .range_to_buffer_ranges(selection_range, cx);
10835
10836 let (buffer, range, _) = if selection.reversed {
10837 buffer_ranges.first()
10838 } else {
10839 buffer_ranges.last()
10840 }?;
10841
10842 let snapshot = buffer.read(cx).snapshot();
10843 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
10844 ..text::ToPoint::to_point(&range.end, &snapshot).row;
10845 (buffer.clone(), selection)
10846 };
10847
10848 let path = buffer
10849 .read(cx)
10850 .file()?
10851 .as_local()?
10852 .path()
10853 .to_str()?
10854 .to_string();
10855 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
10856 Some((path, selection, repo))
10857 })
10858 .ok_or_else(|| anyhow!("unable to open git repository"))?;
10859
10860 const REMOTE_NAME: &str = "origin";
10861 let origin_url = repo
10862 .remote_url(REMOTE_NAME)
10863 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
10864 let sha = repo
10865 .head_sha()
10866 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
10867
10868 let (provider, remote) =
10869 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
10870 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
10871
10872 Ok(provider.build_permalink(
10873 remote,
10874 BuildPermalinkParams {
10875 sha: &sha,
10876 path: &path,
10877 selection: Some(selection),
10878 },
10879 ))
10880 }
10881
10882 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
10883 let permalink = self.get_permalink_to_line(cx);
10884
10885 match permalink {
10886 Ok(permalink) => {
10887 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
10888 }
10889 Err(err) => {
10890 let message = format!("Failed to copy permalink: {err}");
10891
10892 Err::<(), anyhow::Error>(err).log_err();
10893
10894 if let Some(workspace) = self.workspace() {
10895 workspace.update(cx, |workspace, cx| {
10896 struct CopyPermalinkToLine;
10897
10898 workspace.show_toast(
10899 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
10900 cx,
10901 )
10902 })
10903 }
10904 }
10905 }
10906 }
10907
10908 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
10909 let permalink = self.get_permalink_to_line(cx);
10910
10911 match permalink {
10912 Ok(permalink) => {
10913 cx.open_url(permalink.as_ref());
10914 }
10915 Err(err) => {
10916 let message = format!("Failed to open permalink: {err}");
10917
10918 Err::<(), anyhow::Error>(err).log_err();
10919
10920 if let Some(workspace) = self.workspace() {
10921 workspace.update(cx, |workspace, cx| {
10922 struct OpenPermalinkToLine;
10923
10924 workspace.show_toast(
10925 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
10926 cx,
10927 )
10928 })
10929 }
10930 }
10931 }
10932 }
10933
10934 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
10935 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
10936 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
10937 pub fn highlight_rows<T: 'static>(
10938 &mut self,
10939 rows: RangeInclusive<Anchor>,
10940 color: Option<Hsla>,
10941 should_autoscroll: bool,
10942 cx: &mut ViewContext<Self>,
10943 ) {
10944 let snapshot = self.buffer().read(cx).snapshot(cx);
10945 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
10946 let existing_highlight_index = row_highlights.binary_search_by(|highlight| {
10947 highlight
10948 .range
10949 .start()
10950 .cmp(&rows.start(), &snapshot)
10951 .then(highlight.range.end().cmp(&rows.end(), &snapshot))
10952 });
10953 match (color, existing_highlight_index) {
10954 (Some(_), Ok(ix)) | (_, Err(ix)) => row_highlights.insert(
10955 ix,
10956 RowHighlight {
10957 index: post_inc(&mut self.highlight_order),
10958 range: rows,
10959 should_autoscroll,
10960 color,
10961 },
10962 ),
10963 (None, Ok(i)) => {
10964 row_highlights.remove(i);
10965 }
10966 }
10967 }
10968
10969 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
10970 pub fn clear_row_highlights<T: 'static>(&mut self) {
10971 self.highlighted_rows.remove(&TypeId::of::<T>());
10972 }
10973
10974 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
10975 pub fn highlighted_rows<T: 'static>(
10976 &self,
10977 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
10978 Some(
10979 self.highlighted_rows
10980 .get(&TypeId::of::<T>())?
10981 .iter()
10982 .map(|highlight| (&highlight.range, highlight.color.as_ref())),
10983 )
10984 }
10985
10986 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
10987 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
10988 /// Allows to ignore certain kinds of highlights.
10989 pub fn highlighted_display_rows(
10990 &mut self,
10991 cx: &mut WindowContext,
10992 ) -> BTreeMap<DisplayRow, Hsla> {
10993 let snapshot = self.snapshot(cx);
10994 let mut used_highlight_orders = HashMap::default();
10995 self.highlighted_rows
10996 .iter()
10997 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
10998 .fold(
10999 BTreeMap::<DisplayRow, Hsla>::new(),
11000 |mut unique_rows, highlight| {
11001 let start_row = highlight.range.start().to_display_point(&snapshot).row();
11002 let end_row = highlight.range.end().to_display_point(&snapshot).row();
11003 for row in start_row.0..=end_row.0 {
11004 let used_index =
11005 used_highlight_orders.entry(row).or_insert(highlight.index);
11006 if highlight.index >= *used_index {
11007 *used_index = highlight.index;
11008 match highlight.color {
11009 Some(hsla) => unique_rows.insert(DisplayRow(row), hsla),
11010 None => unique_rows.remove(&DisplayRow(row)),
11011 };
11012 }
11013 }
11014 unique_rows
11015 },
11016 )
11017 }
11018
11019 pub fn highlighted_display_row_for_autoscroll(
11020 &self,
11021 snapshot: &DisplaySnapshot,
11022 ) -> Option<DisplayRow> {
11023 self.highlighted_rows
11024 .values()
11025 .flat_map(|highlighted_rows| highlighted_rows.iter())
11026 .filter_map(|highlight| {
11027 if highlight.color.is_none() || !highlight.should_autoscroll {
11028 return None;
11029 }
11030 Some(highlight.range.start().to_display_point(&snapshot).row())
11031 })
11032 .min()
11033 }
11034
11035 pub fn set_search_within_ranges(
11036 &mut self,
11037 ranges: &[Range<Anchor>],
11038 cx: &mut ViewContext<Self>,
11039 ) {
11040 self.highlight_background::<SearchWithinRange>(
11041 ranges,
11042 |colors| colors.editor_document_highlight_read_background,
11043 cx,
11044 )
11045 }
11046
11047 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11048 self.breadcrumb_header = Some(new_header);
11049 }
11050
11051 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11052 self.clear_background_highlights::<SearchWithinRange>(cx);
11053 }
11054
11055 pub fn highlight_background<T: 'static>(
11056 &mut self,
11057 ranges: &[Range<Anchor>],
11058 color_fetcher: fn(&ThemeColors) -> Hsla,
11059 cx: &mut ViewContext<Self>,
11060 ) {
11061 self.background_highlights
11062 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11063 self.scrollbar_marker_state.dirty = true;
11064 cx.notify();
11065 }
11066
11067 pub fn clear_background_highlights<T: 'static>(
11068 &mut self,
11069 cx: &mut ViewContext<Self>,
11070 ) -> Option<BackgroundHighlight> {
11071 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11072 if !text_highlights.1.is_empty() {
11073 self.scrollbar_marker_state.dirty = true;
11074 cx.notify();
11075 }
11076 Some(text_highlights)
11077 }
11078
11079 pub fn highlight_gutter<T: 'static>(
11080 &mut self,
11081 ranges: &[Range<Anchor>],
11082 color_fetcher: fn(&AppContext) -> Hsla,
11083 cx: &mut ViewContext<Self>,
11084 ) {
11085 self.gutter_highlights
11086 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11087 cx.notify();
11088 }
11089
11090 pub fn clear_gutter_highlights<T: 'static>(
11091 &mut self,
11092 cx: &mut ViewContext<Self>,
11093 ) -> Option<GutterHighlight> {
11094 cx.notify();
11095 self.gutter_highlights.remove(&TypeId::of::<T>())
11096 }
11097
11098 #[cfg(feature = "test-support")]
11099 pub fn all_text_background_highlights(
11100 &mut self,
11101 cx: &mut ViewContext<Self>,
11102 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11103 let snapshot = self.snapshot(cx);
11104 let buffer = &snapshot.buffer_snapshot;
11105 let start = buffer.anchor_before(0);
11106 let end = buffer.anchor_after(buffer.len());
11107 let theme = cx.theme().colors();
11108 self.background_highlights_in_range(start..end, &snapshot, theme)
11109 }
11110
11111 #[cfg(feature = "test-support")]
11112 pub fn search_background_highlights(
11113 &mut self,
11114 cx: &mut ViewContext<Self>,
11115 ) -> Vec<Range<Point>> {
11116 let snapshot = self.buffer().read(cx).snapshot(cx);
11117
11118 let highlights = self
11119 .background_highlights
11120 .get(&TypeId::of::<items::BufferSearchHighlights>());
11121
11122 if let Some((_color, ranges)) = highlights {
11123 ranges
11124 .iter()
11125 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11126 .collect_vec()
11127 } else {
11128 vec![]
11129 }
11130 }
11131
11132 fn document_highlights_for_position<'a>(
11133 &'a self,
11134 position: Anchor,
11135 buffer: &'a MultiBufferSnapshot,
11136 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
11137 let read_highlights = self
11138 .background_highlights
11139 .get(&TypeId::of::<DocumentHighlightRead>())
11140 .map(|h| &h.1);
11141 let write_highlights = self
11142 .background_highlights
11143 .get(&TypeId::of::<DocumentHighlightWrite>())
11144 .map(|h| &h.1);
11145 let left_position = position.bias_left(buffer);
11146 let right_position = position.bias_right(buffer);
11147 read_highlights
11148 .into_iter()
11149 .chain(write_highlights)
11150 .flat_map(move |ranges| {
11151 let start_ix = match ranges.binary_search_by(|probe| {
11152 let cmp = probe.end.cmp(&left_position, buffer);
11153 if cmp.is_ge() {
11154 Ordering::Greater
11155 } else {
11156 Ordering::Less
11157 }
11158 }) {
11159 Ok(i) | Err(i) => i,
11160 };
11161
11162 ranges[start_ix..]
11163 .iter()
11164 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11165 })
11166 }
11167
11168 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11169 self.background_highlights
11170 .get(&TypeId::of::<T>())
11171 .map_or(false, |(_, highlights)| !highlights.is_empty())
11172 }
11173
11174 pub fn background_highlights_in_range(
11175 &self,
11176 search_range: Range<Anchor>,
11177 display_snapshot: &DisplaySnapshot,
11178 theme: &ThemeColors,
11179 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11180 let mut results = Vec::new();
11181 for (color_fetcher, ranges) in self.background_highlights.values() {
11182 let color = color_fetcher(theme);
11183 let start_ix = match ranges.binary_search_by(|probe| {
11184 let cmp = probe
11185 .end
11186 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11187 if cmp.is_gt() {
11188 Ordering::Greater
11189 } else {
11190 Ordering::Less
11191 }
11192 }) {
11193 Ok(i) | Err(i) => i,
11194 };
11195 for range in &ranges[start_ix..] {
11196 if range
11197 .start
11198 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11199 .is_ge()
11200 {
11201 break;
11202 }
11203
11204 let start = range.start.to_display_point(&display_snapshot);
11205 let end = range.end.to_display_point(&display_snapshot);
11206 results.push((start..end, color))
11207 }
11208 }
11209 results
11210 }
11211
11212 pub fn background_highlight_row_ranges<T: 'static>(
11213 &self,
11214 search_range: Range<Anchor>,
11215 display_snapshot: &DisplaySnapshot,
11216 count: usize,
11217 ) -> Vec<RangeInclusive<DisplayPoint>> {
11218 let mut results = Vec::new();
11219 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
11220 return vec![];
11221 };
11222
11223 let start_ix = match ranges.binary_search_by(|probe| {
11224 let cmp = probe
11225 .end
11226 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11227 if cmp.is_gt() {
11228 Ordering::Greater
11229 } else {
11230 Ordering::Less
11231 }
11232 }) {
11233 Ok(i) | Err(i) => i,
11234 };
11235 let mut push_region = |start: Option<Point>, end: Option<Point>| {
11236 if let (Some(start_display), Some(end_display)) = (start, end) {
11237 results.push(
11238 start_display.to_display_point(display_snapshot)
11239 ..=end_display.to_display_point(display_snapshot),
11240 );
11241 }
11242 };
11243 let mut start_row: Option<Point> = None;
11244 let mut end_row: Option<Point> = None;
11245 if ranges.len() > count {
11246 return Vec::new();
11247 }
11248 for range in &ranges[start_ix..] {
11249 if range
11250 .start
11251 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11252 .is_ge()
11253 {
11254 break;
11255 }
11256 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
11257 if let Some(current_row) = &end_row {
11258 if end.row == current_row.row {
11259 continue;
11260 }
11261 }
11262 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
11263 if start_row.is_none() {
11264 assert_eq!(end_row, None);
11265 start_row = Some(start);
11266 end_row = Some(end);
11267 continue;
11268 }
11269 if let Some(current_end) = end_row.as_mut() {
11270 if start.row > current_end.row + 1 {
11271 push_region(start_row, end_row);
11272 start_row = Some(start);
11273 end_row = Some(end);
11274 } else {
11275 // Merge two hunks.
11276 *current_end = end;
11277 }
11278 } else {
11279 unreachable!();
11280 }
11281 }
11282 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
11283 push_region(start_row, end_row);
11284 results
11285 }
11286
11287 pub fn gutter_highlights_in_range(
11288 &self,
11289 search_range: Range<Anchor>,
11290 display_snapshot: &DisplaySnapshot,
11291 cx: &AppContext,
11292 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11293 let mut results = Vec::new();
11294 for (color_fetcher, ranges) in self.gutter_highlights.values() {
11295 let color = color_fetcher(cx);
11296 let start_ix = match ranges.binary_search_by(|probe| {
11297 let cmp = probe
11298 .end
11299 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11300 if cmp.is_gt() {
11301 Ordering::Greater
11302 } else {
11303 Ordering::Less
11304 }
11305 }) {
11306 Ok(i) | Err(i) => i,
11307 };
11308 for range in &ranges[start_ix..] {
11309 if range
11310 .start
11311 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11312 .is_ge()
11313 {
11314 break;
11315 }
11316
11317 let start = range.start.to_display_point(&display_snapshot);
11318 let end = range.end.to_display_point(&display_snapshot);
11319 results.push((start..end, color))
11320 }
11321 }
11322 results
11323 }
11324
11325 /// Get the text ranges corresponding to the redaction query
11326 pub fn redacted_ranges(
11327 &self,
11328 search_range: Range<Anchor>,
11329 display_snapshot: &DisplaySnapshot,
11330 cx: &WindowContext,
11331 ) -> Vec<Range<DisplayPoint>> {
11332 display_snapshot
11333 .buffer_snapshot
11334 .redacted_ranges(search_range, |file| {
11335 if let Some(file) = file {
11336 file.is_private()
11337 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
11338 } else {
11339 false
11340 }
11341 })
11342 .map(|range| {
11343 range.start.to_display_point(display_snapshot)
11344 ..range.end.to_display_point(display_snapshot)
11345 })
11346 .collect()
11347 }
11348
11349 pub fn highlight_text<T: 'static>(
11350 &mut self,
11351 ranges: Vec<Range<Anchor>>,
11352 style: HighlightStyle,
11353 cx: &mut ViewContext<Self>,
11354 ) {
11355 self.display_map.update(cx, |map, _| {
11356 map.highlight_text(TypeId::of::<T>(), ranges, style)
11357 });
11358 cx.notify();
11359 }
11360
11361 pub(crate) fn highlight_inlays<T: 'static>(
11362 &mut self,
11363 highlights: Vec<InlayHighlight>,
11364 style: HighlightStyle,
11365 cx: &mut ViewContext<Self>,
11366 ) {
11367 self.display_map.update(cx, |map, _| {
11368 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
11369 });
11370 cx.notify();
11371 }
11372
11373 pub fn text_highlights<'a, T: 'static>(
11374 &'a self,
11375 cx: &'a AppContext,
11376 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
11377 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
11378 }
11379
11380 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
11381 let cleared = self
11382 .display_map
11383 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
11384 if cleared {
11385 cx.notify();
11386 }
11387 }
11388
11389 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
11390 (self.read_only(cx) || self.blink_manager.read(cx).visible())
11391 && self.focus_handle.is_focused(cx)
11392 }
11393
11394 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
11395 self.show_cursor_when_unfocused = is_enabled;
11396 cx.notify();
11397 }
11398
11399 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
11400 cx.notify();
11401 }
11402
11403 fn on_buffer_event(
11404 &mut self,
11405 multibuffer: Model<MultiBuffer>,
11406 event: &multi_buffer::Event,
11407 cx: &mut ViewContext<Self>,
11408 ) {
11409 match event {
11410 multi_buffer::Event::Edited {
11411 singleton_buffer_edited,
11412 } => {
11413 self.scrollbar_marker_state.dirty = true;
11414 self.active_indent_guides_state.dirty = true;
11415 self.refresh_active_diagnostics(cx);
11416 self.refresh_code_actions(cx);
11417 if self.has_active_inline_completion(cx) {
11418 self.update_visible_inline_completion(cx);
11419 }
11420 cx.emit(EditorEvent::BufferEdited);
11421 cx.emit(SearchEvent::MatchesInvalidated);
11422 if *singleton_buffer_edited {
11423 if let Some(project) = &self.project {
11424 let project = project.read(cx);
11425 #[allow(clippy::mutable_key_type)]
11426 let languages_affected = multibuffer
11427 .read(cx)
11428 .all_buffers()
11429 .into_iter()
11430 .filter_map(|buffer| {
11431 let buffer = buffer.read(cx);
11432 let language = buffer.language()?;
11433 if project.is_local_or_ssh()
11434 && project.language_servers_for_buffer(buffer, cx).count() == 0
11435 {
11436 None
11437 } else {
11438 Some(language)
11439 }
11440 })
11441 .cloned()
11442 .collect::<HashSet<_>>();
11443 if !languages_affected.is_empty() {
11444 self.refresh_inlay_hints(
11445 InlayHintRefreshReason::BufferEdited(languages_affected),
11446 cx,
11447 );
11448 }
11449 }
11450 }
11451
11452 let Some(project) = &self.project else { return };
11453 let telemetry = project.read(cx).client().telemetry().clone();
11454 refresh_linked_ranges(self, cx);
11455 telemetry.log_edit_event("editor");
11456 }
11457 multi_buffer::Event::ExcerptsAdded {
11458 buffer,
11459 predecessor,
11460 excerpts,
11461 } => {
11462 self.tasks_update_task = Some(self.refresh_runnables(cx));
11463 cx.emit(EditorEvent::ExcerptsAdded {
11464 buffer: buffer.clone(),
11465 predecessor: *predecessor,
11466 excerpts: excerpts.clone(),
11467 });
11468 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
11469 }
11470 multi_buffer::Event::ExcerptsRemoved { ids } => {
11471 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
11472 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
11473 }
11474 multi_buffer::Event::ExcerptsEdited { ids } => {
11475 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
11476 }
11477 multi_buffer::Event::ExcerptsExpanded { ids } => {
11478 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
11479 }
11480 multi_buffer::Event::Reparsed(buffer_id) => {
11481 self.tasks_update_task = Some(self.refresh_runnables(cx));
11482
11483 cx.emit(EditorEvent::Reparsed(*buffer_id));
11484 }
11485 multi_buffer::Event::LanguageChanged(buffer_id) => {
11486 linked_editing_ranges::refresh_linked_ranges(self, cx);
11487 cx.emit(EditorEvent::Reparsed(*buffer_id));
11488 cx.notify();
11489 }
11490 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
11491 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
11492 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
11493 cx.emit(EditorEvent::TitleChanged)
11494 }
11495 multi_buffer::Event::DiffBaseChanged => {
11496 self.scrollbar_marker_state.dirty = true;
11497 cx.emit(EditorEvent::DiffBaseChanged);
11498 cx.notify();
11499 }
11500 multi_buffer::Event::DiffUpdated { buffer } => {
11501 self.sync_expanded_diff_hunks(buffer.clone(), cx);
11502 cx.notify();
11503 }
11504 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
11505 multi_buffer::Event::DiagnosticsUpdated => {
11506 self.refresh_active_diagnostics(cx);
11507 self.scrollbar_marker_state.dirty = true;
11508 cx.notify();
11509 }
11510 _ => {}
11511 };
11512 }
11513
11514 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
11515 cx.notify();
11516 }
11517
11518 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
11519 self.tasks_update_task = Some(self.refresh_runnables(cx));
11520 self.refresh_inline_completion(true, false, cx);
11521 self.refresh_inlay_hints(
11522 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
11523 self.selections.newest_anchor().head(),
11524 &self.buffer.read(cx).snapshot(cx),
11525 cx,
11526 )),
11527 cx,
11528 );
11529 let editor_settings = EditorSettings::get_global(cx);
11530 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
11531 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
11532
11533 let project_settings = ProjectSettings::get_global(cx);
11534 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
11535
11536 if self.mode == EditorMode::Full {
11537 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
11538 if self.git_blame_inline_enabled != inline_blame_enabled {
11539 self.toggle_git_blame_inline_internal(false, cx);
11540 }
11541 }
11542
11543 cx.notify();
11544 }
11545
11546 pub fn set_searchable(&mut self, searchable: bool) {
11547 self.searchable = searchable;
11548 }
11549
11550 pub fn searchable(&self) -> bool {
11551 self.searchable
11552 }
11553
11554 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
11555 self.open_excerpts_common(true, cx)
11556 }
11557
11558 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
11559 self.open_excerpts_common(false, cx)
11560 }
11561
11562 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
11563 let buffer = self.buffer.read(cx);
11564 if buffer.is_singleton() {
11565 cx.propagate();
11566 return;
11567 }
11568
11569 let Some(workspace) = self.workspace() else {
11570 cx.propagate();
11571 return;
11572 };
11573
11574 let mut new_selections_by_buffer = HashMap::default();
11575 for selection in self.selections.all::<usize>(cx) {
11576 for (buffer, mut range, _) in
11577 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
11578 {
11579 if selection.reversed {
11580 mem::swap(&mut range.start, &mut range.end);
11581 }
11582 new_selections_by_buffer
11583 .entry(buffer)
11584 .or_insert(Vec::new())
11585 .push(range)
11586 }
11587 }
11588
11589 // We defer the pane interaction because we ourselves are a workspace item
11590 // and activating a new item causes the pane to call a method on us reentrantly,
11591 // which panics if we're on the stack.
11592 cx.window_context().defer(move |cx| {
11593 workspace.update(cx, |workspace, cx| {
11594 let pane = if split {
11595 workspace.adjacent_pane(cx)
11596 } else {
11597 workspace.active_pane().clone()
11598 };
11599
11600 for (buffer, ranges) in new_selections_by_buffer {
11601 let editor =
11602 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
11603 editor.update(cx, |editor, cx| {
11604 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
11605 s.select_ranges(ranges);
11606 });
11607 });
11608 }
11609 })
11610 });
11611 }
11612
11613 fn jump(
11614 &mut self,
11615 path: ProjectPath,
11616 position: Point,
11617 anchor: language::Anchor,
11618 offset_from_top: u32,
11619 cx: &mut ViewContext<Self>,
11620 ) {
11621 let workspace = self.workspace();
11622 cx.spawn(|_, mut cx| async move {
11623 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
11624 let editor = workspace.update(&mut cx, |workspace, cx| {
11625 // Reset the preview item id before opening the new item
11626 workspace.active_pane().update(cx, |pane, cx| {
11627 pane.set_preview_item_id(None, cx);
11628 });
11629 workspace.open_path_preview(path, None, true, true, cx)
11630 })?;
11631 let editor = editor
11632 .await?
11633 .downcast::<Editor>()
11634 .ok_or_else(|| anyhow!("opened item was not an editor"))?
11635 .downgrade();
11636 editor.update(&mut cx, |editor, cx| {
11637 let buffer = editor
11638 .buffer()
11639 .read(cx)
11640 .as_singleton()
11641 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
11642 let buffer = buffer.read(cx);
11643 let cursor = if buffer.can_resolve(&anchor) {
11644 language::ToPoint::to_point(&anchor, buffer)
11645 } else {
11646 buffer.clip_point(position, Bias::Left)
11647 };
11648
11649 let nav_history = editor.nav_history.take();
11650 editor.change_selections(
11651 Some(Autoscroll::top_relative(offset_from_top as usize)),
11652 cx,
11653 |s| {
11654 s.select_ranges([cursor..cursor]);
11655 },
11656 );
11657 editor.nav_history = nav_history;
11658
11659 anyhow::Ok(())
11660 })??;
11661
11662 anyhow::Ok(())
11663 })
11664 .detach_and_log_err(cx);
11665 }
11666
11667 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
11668 let snapshot = self.buffer.read(cx).read(cx);
11669 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
11670 Some(
11671 ranges
11672 .iter()
11673 .map(move |range| {
11674 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
11675 })
11676 .collect(),
11677 )
11678 }
11679
11680 fn selection_replacement_ranges(
11681 &self,
11682 range: Range<OffsetUtf16>,
11683 cx: &AppContext,
11684 ) -> Vec<Range<OffsetUtf16>> {
11685 let selections = self.selections.all::<OffsetUtf16>(cx);
11686 let newest_selection = selections
11687 .iter()
11688 .max_by_key(|selection| selection.id)
11689 .unwrap();
11690 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
11691 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
11692 let snapshot = self.buffer.read(cx).read(cx);
11693 selections
11694 .into_iter()
11695 .map(|mut selection| {
11696 selection.start.0 =
11697 (selection.start.0 as isize).saturating_add(start_delta) as usize;
11698 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
11699 snapshot.clip_offset_utf16(selection.start, Bias::Left)
11700 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
11701 })
11702 .collect()
11703 }
11704
11705 fn report_editor_event(
11706 &self,
11707 operation: &'static str,
11708 file_extension: Option<String>,
11709 cx: &AppContext,
11710 ) {
11711 if cfg!(any(test, feature = "test-support")) {
11712 return;
11713 }
11714
11715 let Some(project) = &self.project else { return };
11716
11717 // If None, we are in a file without an extension
11718 let file = self
11719 .buffer
11720 .read(cx)
11721 .as_singleton()
11722 .and_then(|b| b.read(cx).file());
11723 let file_extension = file_extension.or(file
11724 .as_ref()
11725 .and_then(|file| Path::new(file.file_name(cx)).extension())
11726 .and_then(|e| e.to_str())
11727 .map(|a| a.to_string()));
11728
11729 let vim_mode = cx
11730 .global::<SettingsStore>()
11731 .raw_user_settings()
11732 .get("vim_mode")
11733 == Some(&serde_json::Value::Bool(true));
11734
11735 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
11736 == language::language_settings::InlineCompletionProvider::Copilot;
11737 let copilot_enabled_for_language = self
11738 .buffer
11739 .read(cx)
11740 .settings_at(0, cx)
11741 .show_inline_completions;
11742
11743 let telemetry = project.read(cx).client().telemetry().clone();
11744 telemetry.report_editor_event(
11745 file_extension,
11746 vim_mode,
11747 operation,
11748 copilot_enabled,
11749 copilot_enabled_for_language,
11750 )
11751 }
11752
11753 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
11754 /// with each line being an array of {text, highlight} objects.
11755 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
11756 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
11757 return;
11758 };
11759
11760 #[derive(Serialize)]
11761 struct Chunk<'a> {
11762 text: String,
11763 highlight: Option<&'a str>,
11764 }
11765
11766 let snapshot = buffer.read(cx).snapshot();
11767 let range = self
11768 .selected_text_range(cx)
11769 .and_then(|selected_range| {
11770 if selected_range.is_empty() {
11771 None
11772 } else {
11773 Some(selected_range)
11774 }
11775 })
11776 .unwrap_or_else(|| 0..snapshot.len());
11777
11778 let chunks = snapshot.chunks(range, true);
11779 let mut lines = Vec::new();
11780 let mut line: VecDeque<Chunk> = VecDeque::new();
11781
11782 let Some(style) = self.style.as_ref() else {
11783 return;
11784 };
11785
11786 for chunk in chunks {
11787 let highlight = chunk
11788 .syntax_highlight_id
11789 .and_then(|id| id.name(&style.syntax));
11790 let mut chunk_lines = chunk.text.split('\n').peekable();
11791 while let Some(text) = chunk_lines.next() {
11792 let mut merged_with_last_token = false;
11793 if let Some(last_token) = line.back_mut() {
11794 if last_token.highlight == highlight {
11795 last_token.text.push_str(text);
11796 merged_with_last_token = true;
11797 }
11798 }
11799
11800 if !merged_with_last_token {
11801 line.push_back(Chunk {
11802 text: text.into(),
11803 highlight,
11804 });
11805 }
11806
11807 if chunk_lines.peek().is_some() {
11808 if line.len() > 1 && line.front().unwrap().text.is_empty() {
11809 line.pop_front();
11810 }
11811 if line.len() > 1 && line.back().unwrap().text.is_empty() {
11812 line.pop_back();
11813 }
11814
11815 lines.push(mem::take(&mut line));
11816 }
11817 }
11818 }
11819
11820 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
11821 return;
11822 };
11823 cx.write_to_clipboard(ClipboardItem::new_string(lines));
11824 }
11825
11826 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
11827 &self.inlay_hint_cache
11828 }
11829
11830 pub fn replay_insert_event(
11831 &mut self,
11832 text: &str,
11833 relative_utf16_range: Option<Range<isize>>,
11834 cx: &mut ViewContext<Self>,
11835 ) {
11836 if !self.input_enabled {
11837 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11838 return;
11839 }
11840 if let Some(relative_utf16_range) = relative_utf16_range {
11841 let selections = self.selections.all::<OffsetUtf16>(cx);
11842 self.change_selections(None, cx, |s| {
11843 let new_ranges = selections.into_iter().map(|range| {
11844 let start = OffsetUtf16(
11845 range
11846 .head()
11847 .0
11848 .saturating_add_signed(relative_utf16_range.start),
11849 );
11850 let end = OffsetUtf16(
11851 range
11852 .head()
11853 .0
11854 .saturating_add_signed(relative_utf16_range.end),
11855 );
11856 start..end
11857 });
11858 s.select_ranges(new_ranges);
11859 });
11860 }
11861
11862 self.handle_input(text, cx);
11863 }
11864
11865 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
11866 let Some(project) = self.project.as_ref() else {
11867 return false;
11868 };
11869 let project = project.read(cx);
11870
11871 let mut supports = false;
11872 self.buffer().read(cx).for_each_buffer(|buffer| {
11873 if !supports {
11874 supports = project
11875 .language_servers_for_buffer(buffer.read(cx), cx)
11876 .any(
11877 |(_, server)| match server.capabilities().inlay_hint_provider {
11878 Some(lsp::OneOf::Left(enabled)) => enabled,
11879 Some(lsp::OneOf::Right(_)) => true,
11880 None => false,
11881 },
11882 )
11883 }
11884 });
11885 supports
11886 }
11887
11888 pub fn focus(&self, cx: &mut WindowContext) {
11889 cx.focus(&self.focus_handle)
11890 }
11891
11892 pub fn is_focused(&self, cx: &WindowContext) -> bool {
11893 self.focus_handle.is_focused(cx)
11894 }
11895
11896 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
11897 cx.emit(EditorEvent::Focused);
11898
11899 if let Some(descendant) = self
11900 .last_focused_descendant
11901 .take()
11902 .and_then(|descendant| descendant.upgrade())
11903 {
11904 cx.focus(&descendant);
11905 } else {
11906 if let Some(blame) = self.blame.as_ref() {
11907 blame.update(cx, GitBlame::focus)
11908 }
11909
11910 self.blink_manager.update(cx, BlinkManager::enable);
11911 self.show_cursor_names(cx);
11912 self.buffer.update(cx, |buffer, cx| {
11913 buffer.finalize_last_transaction(cx);
11914 if self.leader_peer_id.is_none() {
11915 buffer.set_active_selections(
11916 &self.selections.disjoint_anchors(),
11917 self.selections.line_mode,
11918 self.cursor_shape,
11919 cx,
11920 );
11921 }
11922 });
11923 }
11924 }
11925
11926 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
11927 cx.emit(EditorEvent::FocusedIn)
11928 }
11929
11930 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
11931 if event.blurred != self.focus_handle {
11932 self.last_focused_descendant = Some(event.blurred);
11933 }
11934 }
11935
11936 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
11937 self.blink_manager.update(cx, BlinkManager::disable);
11938 self.buffer
11939 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
11940
11941 if let Some(blame) = self.blame.as_ref() {
11942 blame.update(cx, GitBlame::blur)
11943 }
11944 if !self.hover_state.focused(cx) {
11945 hide_hover(self, cx);
11946 }
11947
11948 self.hide_context_menu(cx);
11949 cx.emit(EditorEvent::Blurred);
11950 cx.notify();
11951 }
11952
11953 pub fn register_action<A: Action>(
11954 &mut self,
11955 listener: impl Fn(&A, &mut WindowContext) + 'static,
11956 ) -> Subscription {
11957 let id = self.next_editor_action_id.post_inc();
11958 let listener = Arc::new(listener);
11959 self.editor_actions.borrow_mut().insert(
11960 id,
11961 Box::new(move |cx| {
11962 let cx = cx.window_context();
11963 let listener = listener.clone();
11964 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
11965 let action = action.downcast_ref().unwrap();
11966 if phase == DispatchPhase::Bubble {
11967 listener(action, cx)
11968 }
11969 })
11970 }),
11971 );
11972
11973 let editor_actions = self.editor_actions.clone();
11974 Subscription::new(move || {
11975 editor_actions.borrow_mut().remove(&id);
11976 })
11977 }
11978
11979 pub fn file_header_size(&self) -> u32 {
11980 self.file_header_size
11981 }
11982
11983 pub fn revert(
11984 &mut self,
11985 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
11986 cx: &mut ViewContext<Self>,
11987 ) {
11988 self.buffer().update(cx, |multi_buffer, cx| {
11989 for (buffer_id, changes) in revert_changes {
11990 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
11991 buffer.update(cx, |buffer, cx| {
11992 buffer.edit(
11993 changes.into_iter().map(|(range, text)| {
11994 (range, text.to_string().map(Arc::<str>::from))
11995 }),
11996 None,
11997 cx,
11998 );
11999 });
12000 }
12001 }
12002 });
12003 self.change_selections(None, cx, |selections| selections.refresh());
12004 }
12005
12006 pub fn to_pixel_point(
12007 &mut self,
12008 source: multi_buffer::Anchor,
12009 editor_snapshot: &EditorSnapshot,
12010 cx: &mut ViewContext<Self>,
12011 ) -> Option<gpui::Point<Pixels>> {
12012 let source_point = source.to_display_point(editor_snapshot);
12013 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12014 }
12015
12016 pub fn display_to_pixel_point(
12017 &mut self,
12018 source: DisplayPoint,
12019 editor_snapshot: &EditorSnapshot,
12020 cx: &mut ViewContext<Self>,
12021 ) -> Option<gpui::Point<Pixels>> {
12022 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12023 let text_layout_details = self.text_layout_details(cx);
12024 let scroll_top = text_layout_details
12025 .scroll_anchor
12026 .scroll_position(editor_snapshot)
12027 .y;
12028
12029 if source.row().as_f32() < scroll_top.floor() {
12030 return None;
12031 }
12032 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12033 let source_y = line_height * (source.row().as_f32() - scroll_top);
12034 Some(gpui::Point::new(source_x, source_y))
12035 }
12036
12037 fn gutter_bounds(&self) -> Option<Bounds<Pixels>> {
12038 let bounds = self.last_bounds?;
12039 Some(element::gutter_bounds(bounds, self.gutter_dimensions))
12040 }
12041
12042 pub fn has_active_completions_menu(&self) -> bool {
12043 self.context_menu.read().as_ref().map_or(false, |menu| {
12044 menu.visible() && matches!(menu, ContextMenu::Completions(_))
12045 })
12046 }
12047
12048 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12049 self.addons
12050 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
12051 }
12052
12053 pub fn unregister_addon<T: Addon>(&mut self) {
12054 self.addons.remove(&std::any::TypeId::of::<T>());
12055 }
12056
12057 pub fn addon<T: Addon>(&self) -> Option<&T> {
12058 let type_id = std::any::TypeId::of::<T>();
12059 self.addons
12060 .get(&type_id)
12061 .and_then(|item| item.to_any().downcast_ref::<T>())
12062 }
12063}
12064
12065fn hunks_for_selections(
12066 multi_buffer_snapshot: &MultiBufferSnapshot,
12067 selections: &[Selection<Anchor>],
12068) -> Vec<DiffHunk<MultiBufferRow>> {
12069 let buffer_rows_for_selections = selections.iter().map(|selection| {
12070 let head = selection.head();
12071 let tail = selection.tail();
12072 let start = MultiBufferRow(tail.to_point(&multi_buffer_snapshot).row);
12073 let end = MultiBufferRow(head.to_point(&multi_buffer_snapshot).row);
12074 if start > end {
12075 end..start
12076 } else {
12077 start..end
12078 }
12079 });
12080
12081 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
12082}
12083
12084pub fn hunks_for_rows(
12085 rows: impl Iterator<Item = Range<MultiBufferRow>>,
12086 multi_buffer_snapshot: &MultiBufferSnapshot,
12087) -> Vec<DiffHunk<MultiBufferRow>> {
12088 let mut hunks = Vec::new();
12089 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
12090 HashMap::default();
12091 for selected_multi_buffer_rows in rows {
12092 let query_rows =
12093 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
12094 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
12095 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
12096 // when the caret is just above or just below the deleted hunk.
12097 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
12098 let related_to_selection = if allow_adjacent {
12099 hunk.associated_range.overlaps(&query_rows)
12100 || hunk.associated_range.start == query_rows.end
12101 || hunk.associated_range.end == query_rows.start
12102 } else {
12103 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
12104 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
12105 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
12106 || selected_multi_buffer_rows.end == hunk.associated_range.start
12107 };
12108 if related_to_selection {
12109 if !processed_buffer_rows
12110 .entry(hunk.buffer_id)
12111 .or_default()
12112 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
12113 {
12114 continue;
12115 }
12116 hunks.push(hunk);
12117 }
12118 }
12119 }
12120
12121 hunks
12122}
12123
12124pub trait CollaborationHub {
12125 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
12126 fn user_participant_indices<'a>(
12127 &self,
12128 cx: &'a AppContext,
12129 ) -> &'a HashMap<u64, ParticipantIndex>;
12130 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
12131}
12132
12133impl CollaborationHub for Model<Project> {
12134 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
12135 self.read(cx).collaborators()
12136 }
12137
12138 fn user_participant_indices<'a>(
12139 &self,
12140 cx: &'a AppContext,
12141 ) -> &'a HashMap<u64, ParticipantIndex> {
12142 self.read(cx).user_store().read(cx).participant_indices()
12143 }
12144
12145 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
12146 let this = self.read(cx);
12147 let user_ids = this.collaborators().values().map(|c| c.user_id);
12148 this.user_store().read_with(cx, |user_store, cx| {
12149 user_store.participant_names(user_ids, cx)
12150 })
12151 }
12152}
12153
12154pub trait CompletionProvider {
12155 fn completions(
12156 &self,
12157 buffer: &Model<Buffer>,
12158 buffer_position: text::Anchor,
12159 trigger: CompletionContext,
12160 cx: &mut ViewContext<Editor>,
12161 ) -> Task<Result<Vec<Completion>>>;
12162
12163 fn resolve_completions(
12164 &self,
12165 buffer: Model<Buffer>,
12166 completion_indices: Vec<usize>,
12167 completions: Arc<RwLock<Box<[Completion]>>>,
12168 cx: &mut ViewContext<Editor>,
12169 ) -> Task<Result<bool>>;
12170
12171 fn apply_additional_edits_for_completion(
12172 &self,
12173 buffer: Model<Buffer>,
12174 completion: Completion,
12175 push_to_history: bool,
12176 cx: &mut ViewContext<Editor>,
12177 ) -> Task<Result<Option<language::Transaction>>>;
12178
12179 fn is_completion_trigger(
12180 &self,
12181 buffer: &Model<Buffer>,
12182 position: language::Anchor,
12183 text: &str,
12184 trigger_in_words: bool,
12185 cx: &mut ViewContext<Editor>,
12186 ) -> bool;
12187
12188 fn sort_completions(&self) -> bool {
12189 true
12190 }
12191}
12192
12193fn snippet_completions(
12194 project: &Project,
12195 buffer: &Model<Buffer>,
12196 buffer_position: text::Anchor,
12197 cx: &mut AppContext,
12198) -> Vec<Completion> {
12199 let language = buffer.read(cx).language_at(buffer_position);
12200 let language_name = language.as_ref().map(|language| language.lsp_id());
12201 let snippet_store = project.snippets().read(cx);
12202 let snippets = snippet_store.snippets_for(language_name, cx);
12203
12204 if snippets.is_empty() {
12205 return vec![];
12206 }
12207 let snapshot = buffer.read(cx).text_snapshot();
12208 let chunks = snapshot.reversed_chunks_in_range(text::Anchor::MIN..buffer_position);
12209
12210 let mut lines = chunks.lines();
12211 let Some(line_at) = lines.next().filter(|line| !line.is_empty()) else {
12212 return vec![];
12213 };
12214
12215 let scope = language.map(|language| language.default_scope());
12216 let mut last_word = line_at
12217 .chars()
12218 .rev()
12219 .take_while(|c| char_kind(&scope, *c) == CharKind::Word)
12220 .collect::<String>();
12221 last_word = last_word.chars().rev().collect();
12222 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
12223 let to_lsp = |point: &text::Anchor| {
12224 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
12225 point_to_lsp(end)
12226 };
12227 let lsp_end = to_lsp(&buffer_position);
12228 snippets
12229 .into_iter()
12230 .filter_map(|snippet| {
12231 let matching_prefix = snippet
12232 .prefix
12233 .iter()
12234 .find(|prefix| prefix.starts_with(&last_word))?;
12235 let start = as_offset - last_word.len();
12236 let start = snapshot.anchor_before(start);
12237 let range = start..buffer_position;
12238 let lsp_start = to_lsp(&start);
12239 let lsp_range = lsp::Range {
12240 start: lsp_start,
12241 end: lsp_end,
12242 };
12243 Some(Completion {
12244 old_range: range,
12245 new_text: snippet.body.clone(),
12246 label: CodeLabel {
12247 text: matching_prefix.clone(),
12248 runs: vec![],
12249 filter_range: 0..matching_prefix.len(),
12250 },
12251 server_id: LanguageServerId(usize::MAX),
12252 documentation: snippet
12253 .description
12254 .clone()
12255 .map(|description| Documentation::SingleLine(description)),
12256 lsp_completion: lsp::CompletionItem {
12257 label: snippet.prefix.first().unwrap().clone(),
12258 kind: Some(CompletionItemKind::SNIPPET),
12259 label_details: snippet.description.as_ref().map(|description| {
12260 lsp::CompletionItemLabelDetails {
12261 detail: Some(description.clone()),
12262 description: None,
12263 }
12264 }),
12265 insert_text_format: Some(InsertTextFormat::SNIPPET),
12266 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
12267 lsp::InsertReplaceEdit {
12268 new_text: snippet.body.clone(),
12269 insert: lsp_range,
12270 replace: lsp_range,
12271 },
12272 )),
12273 filter_text: Some(snippet.body.clone()),
12274 sort_text: Some(char::MAX.to_string()),
12275 ..Default::default()
12276 },
12277 confirm: None,
12278 })
12279 })
12280 .collect()
12281}
12282
12283impl CompletionProvider for Model<Project> {
12284 fn completions(
12285 &self,
12286 buffer: &Model<Buffer>,
12287 buffer_position: text::Anchor,
12288 options: CompletionContext,
12289 cx: &mut ViewContext<Editor>,
12290 ) -> Task<Result<Vec<Completion>>> {
12291 self.update(cx, |project, cx| {
12292 let snippets = snippet_completions(project, buffer, buffer_position, cx);
12293 let project_completions = project.completions(&buffer, buffer_position, options, cx);
12294 cx.background_executor().spawn(async move {
12295 let mut completions = project_completions.await?;
12296 //let snippets = snippets.into_iter().;
12297 completions.extend(snippets);
12298 Ok(completions)
12299 })
12300 })
12301 }
12302
12303 fn resolve_completions(
12304 &self,
12305 buffer: Model<Buffer>,
12306 completion_indices: Vec<usize>,
12307 completions: Arc<RwLock<Box<[Completion]>>>,
12308 cx: &mut ViewContext<Editor>,
12309 ) -> Task<Result<bool>> {
12310 self.update(cx, |project, cx| {
12311 project.resolve_completions(buffer, completion_indices, completions, cx)
12312 })
12313 }
12314
12315 fn apply_additional_edits_for_completion(
12316 &self,
12317 buffer: Model<Buffer>,
12318 completion: Completion,
12319 push_to_history: bool,
12320 cx: &mut ViewContext<Editor>,
12321 ) -> Task<Result<Option<language::Transaction>>> {
12322 self.update(cx, |project, cx| {
12323 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
12324 })
12325 }
12326
12327 fn is_completion_trigger(
12328 &self,
12329 buffer: &Model<Buffer>,
12330 position: language::Anchor,
12331 text: &str,
12332 trigger_in_words: bool,
12333 cx: &mut ViewContext<Editor>,
12334 ) -> bool {
12335 if !EditorSettings::get_global(cx).show_completions_on_input {
12336 return false;
12337 }
12338
12339 let mut chars = text.chars();
12340 let char = if let Some(char) = chars.next() {
12341 char
12342 } else {
12343 return false;
12344 };
12345 if chars.next().is_some() {
12346 return false;
12347 }
12348
12349 let buffer = buffer.read(cx);
12350 let scope = buffer.snapshot().language_scope_at(position);
12351 if trigger_in_words && char_kind(&scope, char) == CharKind::Word {
12352 return true;
12353 }
12354
12355 buffer
12356 .completion_triggers()
12357 .iter()
12358 .any(|string| string == text)
12359 }
12360}
12361
12362fn inlay_hint_settings(
12363 location: Anchor,
12364 snapshot: &MultiBufferSnapshot,
12365 cx: &mut ViewContext<'_, Editor>,
12366) -> InlayHintSettings {
12367 let file = snapshot.file_at(location);
12368 let language = snapshot.language_at(location);
12369 let settings = all_language_settings(file, cx);
12370 settings
12371 .language(language.map(|l| l.name()).as_deref())
12372 .inlay_hints
12373}
12374
12375fn consume_contiguous_rows(
12376 contiguous_row_selections: &mut Vec<Selection<Point>>,
12377 selection: &Selection<Point>,
12378 display_map: &DisplaySnapshot,
12379 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
12380) -> (MultiBufferRow, MultiBufferRow) {
12381 contiguous_row_selections.push(selection.clone());
12382 let start_row = MultiBufferRow(selection.start.row);
12383 let mut end_row = ending_row(selection, display_map);
12384
12385 while let Some(next_selection) = selections.peek() {
12386 if next_selection.start.row <= end_row.0 {
12387 end_row = ending_row(next_selection, display_map);
12388 contiguous_row_selections.push(selections.next().unwrap().clone());
12389 } else {
12390 break;
12391 }
12392 }
12393 (start_row, end_row)
12394}
12395
12396fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
12397 if next_selection.end.column > 0 || next_selection.is_empty() {
12398 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
12399 } else {
12400 MultiBufferRow(next_selection.end.row)
12401 }
12402}
12403
12404impl EditorSnapshot {
12405 pub fn remote_selections_in_range<'a>(
12406 &'a self,
12407 range: &'a Range<Anchor>,
12408 collaboration_hub: &dyn CollaborationHub,
12409 cx: &'a AppContext,
12410 ) -> impl 'a + Iterator<Item = RemoteSelection> {
12411 let participant_names = collaboration_hub.user_names(cx);
12412 let participant_indices = collaboration_hub.user_participant_indices(cx);
12413 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
12414 let collaborators_by_replica_id = collaborators_by_peer_id
12415 .iter()
12416 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
12417 .collect::<HashMap<_, _>>();
12418 self.buffer_snapshot
12419 .selections_in_range(range, false)
12420 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
12421 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
12422 let participant_index = participant_indices.get(&collaborator.user_id).copied();
12423 let user_name = participant_names.get(&collaborator.user_id).cloned();
12424 Some(RemoteSelection {
12425 replica_id,
12426 selection,
12427 cursor_shape,
12428 line_mode,
12429 participant_index,
12430 peer_id: collaborator.peer_id,
12431 user_name,
12432 })
12433 })
12434 }
12435
12436 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
12437 self.display_snapshot.buffer_snapshot.language_at(position)
12438 }
12439
12440 pub fn is_focused(&self) -> bool {
12441 self.is_focused
12442 }
12443
12444 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
12445 self.placeholder_text.as_ref()
12446 }
12447
12448 pub fn scroll_position(&self) -> gpui::Point<f32> {
12449 self.scroll_anchor.scroll_position(&self.display_snapshot)
12450 }
12451
12452 fn gutter_dimensions(
12453 &self,
12454 font_id: FontId,
12455 font_size: Pixels,
12456 em_width: Pixels,
12457 max_line_number_width: Pixels,
12458 cx: &AppContext,
12459 ) -> GutterDimensions {
12460 if !self.show_gutter {
12461 return GutterDimensions::default();
12462 }
12463 let descent = cx.text_system().descent(font_id, font_size);
12464
12465 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
12466 matches!(
12467 ProjectSettings::get_global(cx).git.git_gutter,
12468 Some(GitGutterSetting::TrackedFiles)
12469 )
12470 });
12471 let gutter_settings = EditorSettings::get_global(cx).gutter;
12472 let show_line_numbers = self
12473 .show_line_numbers
12474 .unwrap_or(gutter_settings.line_numbers);
12475 let line_gutter_width = if show_line_numbers {
12476 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
12477 let min_width_for_number_on_gutter = em_width * 4.0;
12478 max_line_number_width.max(min_width_for_number_on_gutter)
12479 } else {
12480 0.0.into()
12481 };
12482
12483 let show_code_actions = self
12484 .show_code_actions
12485 .unwrap_or(gutter_settings.code_actions);
12486
12487 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
12488
12489 let git_blame_entries_width = self
12490 .render_git_blame_gutter
12491 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
12492
12493 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
12494 left_padding += if show_code_actions || show_runnables {
12495 em_width * 3.0
12496 } else if show_git_gutter && show_line_numbers {
12497 em_width * 2.0
12498 } else if show_git_gutter || show_line_numbers {
12499 em_width
12500 } else {
12501 px(0.)
12502 };
12503
12504 let right_padding = if gutter_settings.folds && show_line_numbers {
12505 em_width * 4.0
12506 } else if gutter_settings.folds {
12507 em_width * 3.0
12508 } else if show_line_numbers {
12509 em_width
12510 } else {
12511 px(0.)
12512 };
12513
12514 GutterDimensions {
12515 left_padding,
12516 right_padding,
12517 width: line_gutter_width + left_padding + right_padding,
12518 margin: -descent,
12519 git_blame_entries_width,
12520 }
12521 }
12522
12523 pub fn render_fold_toggle(
12524 &self,
12525 buffer_row: MultiBufferRow,
12526 row_contains_cursor: bool,
12527 editor: View<Editor>,
12528 cx: &mut WindowContext,
12529 ) -> Option<AnyElement> {
12530 let folded = self.is_line_folded(buffer_row);
12531
12532 if let Some(crease) = self
12533 .crease_snapshot
12534 .query_row(buffer_row, &self.buffer_snapshot)
12535 {
12536 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
12537 if folded {
12538 editor.update(cx, |editor, cx| {
12539 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
12540 });
12541 } else {
12542 editor.update(cx, |editor, cx| {
12543 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
12544 });
12545 }
12546 });
12547
12548 Some((crease.render_toggle)(
12549 buffer_row,
12550 folded,
12551 toggle_callback,
12552 cx,
12553 ))
12554 } else if folded
12555 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
12556 {
12557 Some(
12558 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
12559 .selected(folded)
12560 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
12561 if folded {
12562 this.unfold_at(&UnfoldAt { buffer_row }, cx);
12563 } else {
12564 this.fold_at(&FoldAt { buffer_row }, cx);
12565 }
12566 }))
12567 .into_any_element(),
12568 )
12569 } else {
12570 None
12571 }
12572 }
12573
12574 pub fn render_crease_trailer(
12575 &self,
12576 buffer_row: MultiBufferRow,
12577 cx: &mut WindowContext,
12578 ) -> Option<AnyElement> {
12579 let folded = self.is_line_folded(buffer_row);
12580 let crease = self
12581 .crease_snapshot
12582 .query_row(buffer_row, &self.buffer_snapshot)?;
12583 Some((crease.render_trailer)(buffer_row, folded, cx))
12584 }
12585}
12586
12587impl Deref for EditorSnapshot {
12588 type Target = DisplaySnapshot;
12589
12590 fn deref(&self) -> &Self::Target {
12591 &self.display_snapshot
12592 }
12593}
12594
12595#[derive(Clone, Debug, PartialEq, Eq)]
12596pub enum EditorEvent {
12597 InputIgnored {
12598 text: Arc<str>,
12599 },
12600 InputHandled {
12601 utf16_range_to_replace: Option<Range<isize>>,
12602 text: Arc<str>,
12603 },
12604 ExcerptsAdded {
12605 buffer: Model<Buffer>,
12606 predecessor: ExcerptId,
12607 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
12608 },
12609 ExcerptsRemoved {
12610 ids: Vec<ExcerptId>,
12611 },
12612 ExcerptsEdited {
12613 ids: Vec<ExcerptId>,
12614 },
12615 ExcerptsExpanded {
12616 ids: Vec<ExcerptId>,
12617 },
12618 BufferEdited,
12619 Edited {
12620 transaction_id: clock::Lamport,
12621 },
12622 Reparsed(BufferId),
12623 Focused,
12624 FocusedIn,
12625 Blurred,
12626 DirtyChanged,
12627 Saved,
12628 TitleChanged,
12629 DiffBaseChanged,
12630 SelectionsChanged {
12631 local: bool,
12632 },
12633 ScrollPositionChanged {
12634 local: bool,
12635 autoscroll: bool,
12636 },
12637 Closed,
12638 TransactionUndone {
12639 transaction_id: clock::Lamport,
12640 },
12641 TransactionBegun {
12642 transaction_id: clock::Lamport,
12643 },
12644}
12645
12646impl EventEmitter<EditorEvent> for Editor {}
12647
12648impl FocusableView for Editor {
12649 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
12650 self.focus_handle.clone()
12651 }
12652}
12653
12654impl Render for Editor {
12655 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
12656 let settings = ThemeSettings::get_global(cx);
12657
12658 let text_style = match self.mode {
12659 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
12660 color: cx.theme().colors().editor_foreground,
12661 font_family: settings.ui_font.family.clone(),
12662 font_features: settings.ui_font.features.clone(),
12663 font_fallbacks: settings.ui_font.fallbacks.clone(),
12664 font_size: rems(0.875).into(),
12665 font_weight: settings.ui_font.weight,
12666 line_height: relative(settings.buffer_line_height.value()),
12667 ..Default::default()
12668 },
12669 EditorMode::Full => TextStyle {
12670 color: cx.theme().colors().editor_foreground,
12671 font_family: settings.buffer_font.family.clone(),
12672 font_features: settings.buffer_font.features.clone(),
12673 font_fallbacks: settings.buffer_font.fallbacks.clone(),
12674 font_size: settings.buffer_font_size(cx).into(),
12675 font_weight: settings.buffer_font.weight,
12676 line_height: relative(settings.buffer_line_height.value()),
12677 ..Default::default()
12678 },
12679 };
12680
12681 let background = match self.mode {
12682 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
12683 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
12684 EditorMode::Full => cx.theme().colors().editor_background,
12685 };
12686
12687 EditorElement::new(
12688 cx.view(),
12689 EditorStyle {
12690 background,
12691 local_player: cx.theme().players().local(),
12692 text: text_style,
12693 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
12694 syntax: cx.theme().syntax().clone(),
12695 status: cx.theme().status().clone(),
12696 inlay_hints_style: HighlightStyle {
12697 color: Some(cx.theme().status().hint),
12698 ..HighlightStyle::default()
12699 },
12700 suggestions_style: HighlightStyle {
12701 color: Some(cx.theme().status().predictive),
12702 ..HighlightStyle::default()
12703 },
12704 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
12705 },
12706 )
12707 }
12708}
12709
12710impl ViewInputHandler for Editor {
12711 fn text_for_range(
12712 &mut self,
12713 range_utf16: Range<usize>,
12714 cx: &mut ViewContext<Self>,
12715 ) -> Option<String> {
12716 Some(
12717 self.buffer
12718 .read(cx)
12719 .read(cx)
12720 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
12721 .collect(),
12722 )
12723 }
12724
12725 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
12726 // Prevent the IME menu from appearing when holding down an alphabetic key
12727 // while input is disabled.
12728 if !self.input_enabled {
12729 return None;
12730 }
12731
12732 let range = self.selections.newest::<OffsetUtf16>(cx).range();
12733 Some(range.start.0..range.end.0)
12734 }
12735
12736 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
12737 let snapshot = self.buffer.read(cx).read(cx);
12738 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
12739 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
12740 }
12741
12742 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
12743 self.clear_highlights::<InputComposition>(cx);
12744 self.ime_transaction.take();
12745 }
12746
12747 fn replace_text_in_range(
12748 &mut self,
12749 range_utf16: Option<Range<usize>>,
12750 text: &str,
12751 cx: &mut ViewContext<Self>,
12752 ) {
12753 if !self.input_enabled {
12754 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12755 return;
12756 }
12757
12758 self.transact(cx, |this, cx| {
12759 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
12760 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
12761 Some(this.selection_replacement_ranges(range_utf16, cx))
12762 } else {
12763 this.marked_text_ranges(cx)
12764 };
12765
12766 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
12767 let newest_selection_id = this.selections.newest_anchor().id;
12768 this.selections
12769 .all::<OffsetUtf16>(cx)
12770 .iter()
12771 .zip(ranges_to_replace.iter())
12772 .find_map(|(selection, range)| {
12773 if selection.id == newest_selection_id {
12774 Some(
12775 (range.start.0 as isize - selection.head().0 as isize)
12776 ..(range.end.0 as isize - selection.head().0 as isize),
12777 )
12778 } else {
12779 None
12780 }
12781 })
12782 });
12783
12784 cx.emit(EditorEvent::InputHandled {
12785 utf16_range_to_replace: range_to_replace,
12786 text: text.into(),
12787 });
12788
12789 if let Some(new_selected_ranges) = new_selected_ranges {
12790 this.change_selections(None, cx, |selections| {
12791 selections.select_ranges(new_selected_ranges)
12792 });
12793 this.backspace(&Default::default(), cx);
12794 }
12795
12796 this.handle_input(text, cx);
12797 });
12798
12799 if let Some(transaction) = self.ime_transaction {
12800 self.buffer.update(cx, |buffer, cx| {
12801 buffer.group_until_transaction(transaction, cx);
12802 });
12803 }
12804
12805 self.unmark_text(cx);
12806 }
12807
12808 fn replace_and_mark_text_in_range(
12809 &mut self,
12810 range_utf16: Option<Range<usize>>,
12811 text: &str,
12812 new_selected_range_utf16: Option<Range<usize>>,
12813 cx: &mut ViewContext<Self>,
12814 ) {
12815 if !self.input_enabled {
12816 return;
12817 }
12818
12819 let transaction = self.transact(cx, |this, cx| {
12820 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
12821 let snapshot = this.buffer.read(cx).read(cx);
12822 if let Some(relative_range_utf16) = range_utf16.as_ref() {
12823 for marked_range in &mut marked_ranges {
12824 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
12825 marked_range.start.0 += relative_range_utf16.start;
12826 marked_range.start =
12827 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
12828 marked_range.end =
12829 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
12830 }
12831 }
12832 Some(marked_ranges)
12833 } else if let Some(range_utf16) = range_utf16 {
12834 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
12835 Some(this.selection_replacement_ranges(range_utf16, cx))
12836 } else {
12837 None
12838 };
12839
12840 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
12841 let newest_selection_id = this.selections.newest_anchor().id;
12842 this.selections
12843 .all::<OffsetUtf16>(cx)
12844 .iter()
12845 .zip(ranges_to_replace.iter())
12846 .find_map(|(selection, range)| {
12847 if selection.id == newest_selection_id {
12848 Some(
12849 (range.start.0 as isize - selection.head().0 as isize)
12850 ..(range.end.0 as isize - selection.head().0 as isize),
12851 )
12852 } else {
12853 None
12854 }
12855 })
12856 });
12857
12858 cx.emit(EditorEvent::InputHandled {
12859 utf16_range_to_replace: range_to_replace,
12860 text: text.into(),
12861 });
12862
12863 if let Some(ranges) = ranges_to_replace {
12864 this.change_selections(None, cx, |s| s.select_ranges(ranges));
12865 }
12866
12867 let marked_ranges = {
12868 let snapshot = this.buffer.read(cx).read(cx);
12869 this.selections
12870 .disjoint_anchors()
12871 .iter()
12872 .map(|selection| {
12873 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
12874 })
12875 .collect::<Vec<_>>()
12876 };
12877
12878 if text.is_empty() {
12879 this.unmark_text(cx);
12880 } else {
12881 this.highlight_text::<InputComposition>(
12882 marked_ranges.clone(),
12883 HighlightStyle {
12884 underline: Some(UnderlineStyle {
12885 thickness: px(1.),
12886 color: None,
12887 wavy: false,
12888 }),
12889 ..Default::default()
12890 },
12891 cx,
12892 );
12893 }
12894
12895 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
12896 let use_autoclose = this.use_autoclose;
12897 let use_auto_surround = this.use_auto_surround;
12898 this.set_use_autoclose(false);
12899 this.set_use_auto_surround(false);
12900 this.handle_input(text, cx);
12901 this.set_use_autoclose(use_autoclose);
12902 this.set_use_auto_surround(use_auto_surround);
12903
12904 if let Some(new_selected_range) = new_selected_range_utf16 {
12905 let snapshot = this.buffer.read(cx).read(cx);
12906 let new_selected_ranges = marked_ranges
12907 .into_iter()
12908 .map(|marked_range| {
12909 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
12910 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
12911 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
12912 snapshot.clip_offset_utf16(new_start, Bias::Left)
12913 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
12914 })
12915 .collect::<Vec<_>>();
12916
12917 drop(snapshot);
12918 this.change_selections(None, cx, |selections| {
12919 selections.select_ranges(new_selected_ranges)
12920 });
12921 }
12922 });
12923
12924 self.ime_transaction = self.ime_transaction.or(transaction);
12925 if let Some(transaction) = self.ime_transaction {
12926 self.buffer.update(cx, |buffer, cx| {
12927 buffer.group_until_transaction(transaction, cx);
12928 });
12929 }
12930
12931 if self.text_highlights::<InputComposition>(cx).is_none() {
12932 self.ime_transaction.take();
12933 }
12934 }
12935
12936 fn bounds_for_range(
12937 &mut self,
12938 range_utf16: Range<usize>,
12939 element_bounds: gpui::Bounds<Pixels>,
12940 cx: &mut ViewContext<Self>,
12941 ) -> Option<gpui::Bounds<Pixels>> {
12942 let text_layout_details = self.text_layout_details(cx);
12943 let style = &text_layout_details.editor_style;
12944 let font_id = cx.text_system().resolve_font(&style.text.font());
12945 let font_size = style.text.font_size.to_pixels(cx.rem_size());
12946 let line_height = style.text.line_height_in_pixels(cx.rem_size());
12947
12948 let em_width = cx
12949 .text_system()
12950 .typographic_bounds(font_id, font_size, 'm')
12951 .unwrap()
12952 .size
12953 .width;
12954
12955 let snapshot = self.snapshot(cx);
12956 let scroll_position = snapshot.scroll_position();
12957 let scroll_left = scroll_position.x * em_width;
12958
12959 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
12960 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
12961 + self.gutter_dimensions.width;
12962 let y = line_height * (start.row().as_f32() - scroll_position.y);
12963
12964 Some(Bounds {
12965 origin: element_bounds.origin + point(x, y),
12966 size: size(em_width, line_height),
12967 })
12968 }
12969}
12970
12971trait SelectionExt {
12972 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
12973 fn spanned_rows(
12974 &self,
12975 include_end_if_at_line_start: bool,
12976 map: &DisplaySnapshot,
12977 ) -> Range<MultiBufferRow>;
12978}
12979
12980impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
12981 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
12982 let start = self
12983 .start
12984 .to_point(&map.buffer_snapshot)
12985 .to_display_point(map);
12986 let end = self
12987 .end
12988 .to_point(&map.buffer_snapshot)
12989 .to_display_point(map);
12990 if self.reversed {
12991 end..start
12992 } else {
12993 start..end
12994 }
12995 }
12996
12997 fn spanned_rows(
12998 &self,
12999 include_end_if_at_line_start: bool,
13000 map: &DisplaySnapshot,
13001 ) -> Range<MultiBufferRow> {
13002 let start = self.start.to_point(&map.buffer_snapshot);
13003 let mut end = self.end.to_point(&map.buffer_snapshot);
13004 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
13005 end.row -= 1;
13006 }
13007
13008 let buffer_start = map.prev_line_boundary(start).0;
13009 let buffer_end = map.next_line_boundary(end).0;
13010 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
13011 }
13012}
13013
13014impl<T: InvalidationRegion> InvalidationStack<T> {
13015 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
13016 where
13017 S: Clone + ToOffset,
13018 {
13019 while let Some(region) = self.last() {
13020 let all_selections_inside_invalidation_ranges =
13021 if selections.len() == region.ranges().len() {
13022 selections
13023 .iter()
13024 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
13025 .all(|(selection, invalidation_range)| {
13026 let head = selection.head().to_offset(buffer);
13027 invalidation_range.start <= head && invalidation_range.end >= head
13028 })
13029 } else {
13030 false
13031 };
13032
13033 if all_selections_inside_invalidation_ranges {
13034 break;
13035 } else {
13036 self.pop();
13037 }
13038 }
13039 }
13040}
13041
13042impl<T> Default for InvalidationStack<T> {
13043 fn default() -> Self {
13044 Self(Default::default())
13045 }
13046}
13047
13048impl<T> Deref for InvalidationStack<T> {
13049 type Target = Vec<T>;
13050
13051 fn deref(&self) -> &Self::Target {
13052 &self.0
13053 }
13054}
13055
13056impl<T> DerefMut for InvalidationStack<T> {
13057 fn deref_mut(&mut self) -> &mut Self::Target {
13058 &mut self.0
13059 }
13060}
13061
13062impl InvalidationRegion for SnippetState {
13063 fn ranges(&self) -> &[Range<Anchor>] {
13064 &self.ranges[self.active_index]
13065 }
13066}
13067
13068pub fn diagnostic_block_renderer(
13069 diagnostic: Diagnostic,
13070 max_message_rows: Option<u8>,
13071 allow_closing: bool,
13072 _is_valid: bool,
13073) -> RenderBlock {
13074 let (text_without_backticks, code_ranges) =
13075 highlight_diagnostic_message(&diagnostic, max_message_rows);
13076
13077 Box::new(move |cx: &mut BlockContext| {
13078 let group_id: SharedString = cx.block_id.to_string().into();
13079
13080 let mut text_style = cx.text_style().clone();
13081 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
13082 let theme_settings = ThemeSettings::get_global(cx);
13083 text_style.font_family = theme_settings.buffer_font.family.clone();
13084 text_style.font_style = theme_settings.buffer_font.style;
13085 text_style.font_features = theme_settings.buffer_font.features.clone();
13086 text_style.font_weight = theme_settings.buffer_font.weight;
13087
13088 let multi_line_diagnostic = diagnostic.message.contains('\n');
13089
13090 let buttons = |diagnostic: &Diagnostic, block_id: BlockId| {
13091 if multi_line_diagnostic {
13092 v_flex()
13093 } else {
13094 h_flex()
13095 }
13096 .when(allow_closing, |div| {
13097 div.children(diagnostic.is_primary.then(|| {
13098 IconButton::new(("close-block", EntityId::from(block_id)), IconName::XCircle)
13099 .icon_color(Color::Muted)
13100 .size(ButtonSize::Compact)
13101 .style(ButtonStyle::Transparent)
13102 .visible_on_hover(group_id.clone())
13103 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
13104 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
13105 }))
13106 })
13107 .child(
13108 IconButton::new(("copy-block", EntityId::from(block_id)), IconName::Copy)
13109 .icon_color(Color::Muted)
13110 .size(ButtonSize::Compact)
13111 .style(ButtonStyle::Transparent)
13112 .visible_on_hover(group_id.clone())
13113 .on_click({
13114 let message = diagnostic.message.clone();
13115 move |_click, cx| {
13116 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
13117 }
13118 })
13119 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
13120 )
13121 };
13122
13123 let icon_size = buttons(&diagnostic, cx.block_id)
13124 .into_any_element()
13125 .layout_as_root(AvailableSpace::min_size(), cx);
13126
13127 h_flex()
13128 .id(cx.block_id)
13129 .group(group_id.clone())
13130 .relative()
13131 .size_full()
13132 .pl(cx.gutter_dimensions.width)
13133 .w(cx.max_width + cx.gutter_dimensions.width)
13134 .child(
13135 div()
13136 .flex()
13137 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
13138 .flex_shrink(),
13139 )
13140 .child(buttons(&diagnostic, cx.block_id))
13141 .child(div().flex().flex_shrink_0().child(
13142 StyledText::new(text_without_backticks.clone()).with_highlights(
13143 &text_style,
13144 code_ranges.iter().map(|range| {
13145 (
13146 range.clone(),
13147 HighlightStyle {
13148 font_weight: Some(FontWeight::BOLD),
13149 ..Default::default()
13150 },
13151 )
13152 }),
13153 ),
13154 ))
13155 .into_any_element()
13156 })
13157}
13158
13159pub fn highlight_diagnostic_message(
13160 diagnostic: &Diagnostic,
13161 mut max_message_rows: Option<u8>,
13162) -> (SharedString, Vec<Range<usize>>) {
13163 let mut text_without_backticks = String::new();
13164 let mut code_ranges = Vec::new();
13165
13166 if let Some(source) = &diagnostic.source {
13167 text_without_backticks.push_str(&source);
13168 code_ranges.push(0..source.len());
13169 text_without_backticks.push_str(": ");
13170 }
13171
13172 let mut prev_offset = 0;
13173 let mut in_code_block = false;
13174 let has_row_limit = max_message_rows.is_some();
13175 let mut newline_indices = diagnostic
13176 .message
13177 .match_indices('\n')
13178 .filter(|_| has_row_limit)
13179 .map(|(ix, _)| ix)
13180 .fuse()
13181 .peekable();
13182
13183 for (quote_ix, _) in diagnostic
13184 .message
13185 .match_indices('`')
13186 .chain([(diagnostic.message.len(), "")])
13187 {
13188 let mut first_newline_ix = None;
13189 let mut last_newline_ix = None;
13190 while let Some(newline_ix) = newline_indices.peek() {
13191 if *newline_ix < quote_ix {
13192 if first_newline_ix.is_none() {
13193 first_newline_ix = Some(*newline_ix);
13194 }
13195 last_newline_ix = Some(*newline_ix);
13196
13197 if let Some(rows_left) = &mut max_message_rows {
13198 if *rows_left == 0 {
13199 break;
13200 } else {
13201 *rows_left -= 1;
13202 }
13203 }
13204 let _ = newline_indices.next();
13205 } else {
13206 break;
13207 }
13208 }
13209 let prev_len = text_without_backticks.len();
13210 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
13211 text_without_backticks.push_str(new_text);
13212 if in_code_block {
13213 code_ranges.push(prev_len..text_without_backticks.len());
13214 }
13215 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
13216 in_code_block = !in_code_block;
13217 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
13218 text_without_backticks.push_str("...");
13219 break;
13220 }
13221 }
13222
13223 (text_without_backticks.into(), code_ranges)
13224}
13225
13226fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
13227 match severity {
13228 DiagnosticSeverity::ERROR => colors.error,
13229 DiagnosticSeverity::WARNING => colors.warning,
13230 DiagnosticSeverity::INFORMATION => colors.info,
13231 DiagnosticSeverity::HINT => colors.info,
13232 _ => colors.ignored,
13233 }
13234}
13235
13236pub fn styled_runs_for_code_label<'a>(
13237 label: &'a CodeLabel,
13238 syntax_theme: &'a theme::SyntaxTheme,
13239) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
13240 let fade_out = HighlightStyle {
13241 fade_out: Some(0.35),
13242 ..Default::default()
13243 };
13244
13245 let mut prev_end = label.filter_range.end;
13246 label
13247 .runs
13248 .iter()
13249 .enumerate()
13250 .flat_map(move |(ix, (range, highlight_id))| {
13251 let style = if let Some(style) = highlight_id.style(syntax_theme) {
13252 style
13253 } else {
13254 return Default::default();
13255 };
13256 let mut muted_style = style;
13257 muted_style.highlight(fade_out);
13258
13259 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
13260 if range.start >= label.filter_range.end {
13261 if range.start > prev_end {
13262 runs.push((prev_end..range.start, fade_out));
13263 }
13264 runs.push((range.clone(), muted_style));
13265 } else if range.end <= label.filter_range.end {
13266 runs.push((range.clone(), style));
13267 } else {
13268 runs.push((range.start..label.filter_range.end, style));
13269 runs.push((label.filter_range.end..range.end, muted_style));
13270 }
13271 prev_end = cmp::max(prev_end, range.end);
13272
13273 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
13274 runs.push((prev_end..label.text.len(), fade_out));
13275 }
13276
13277 runs
13278 })
13279}
13280
13281pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
13282 let mut prev_index = 0;
13283 let mut prev_codepoint: Option<char> = None;
13284 text.char_indices()
13285 .chain([(text.len(), '\0')])
13286 .filter_map(move |(index, codepoint)| {
13287 let prev_codepoint = prev_codepoint.replace(codepoint)?;
13288 let is_boundary = index == text.len()
13289 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
13290 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
13291 if is_boundary {
13292 let chunk = &text[prev_index..index];
13293 prev_index = index;
13294 Some(chunk)
13295 } else {
13296 None
13297 }
13298 })
13299}
13300
13301pub trait RangeToAnchorExt: Sized {
13302 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
13303
13304 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
13305 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
13306 anchor_range.start.to_display_point(&snapshot)..anchor_range.end.to_display_point(&snapshot)
13307 }
13308}
13309
13310impl<T: ToOffset> RangeToAnchorExt for Range<T> {
13311 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
13312 let start_offset = self.start.to_offset(snapshot);
13313 let end_offset = self.end.to_offset(snapshot);
13314 if start_offset == end_offset {
13315 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
13316 } else {
13317 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
13318 }
13319 }
13320}
13321
13322pub trait RowExt {
13323 fn as_f32(&self) -> f32;
13324
13325 fn next_row(&self) -> Self;
13326
13327 fn previous_row(&self) -> Self;
13328
13329 fn minus(&self, other: Self) -> u32;
13330}
13331
13332impl RowExt for DisplayRow {
13333 fn as_f32(&self) -> f32 {
13334 self.0 as f32
13335 }
13336
13337 fn next_row(&self) -> Self {
13338 Self(self.0 + 1)
13339 }
13340
13341 fn previous_row(&self) -> Self {
13342 Self(self.0.saturating_sub(1))
13343 }
13344
13345 fn minus(&self, other: Self) -> u32 {
13346 self.0 - other.0
13347 }
13348}
13349
13350impl RowExt for MultiBufferRow {
13351 fn as_f32(&self) -> f32 {
13352 self.0 as f32
13353 }
13354
13355 fn next_row(&self) -> Self {
13356 Self(self.0 + 1)
13357 }
13358
13359 fn previous_row(&self) -> Self {
13360 Self(self.0.saturating_sub(1))
13361 }
13362
13363 fn minus(&self, other: Self) -> u32 {
13364 self.0 - other.0
13365 }
13366}
13367
13368trait RowRangeExt {
13369 type Row;
13370
13371 fn len(&self) -> usize;
13372
13373 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
13374}
13375
13376impl RowRangeExt for Range<MultiBufferRow> {
13377 type Row = MultiBufferRow;
13378
13379 fn len(&self) -> usize {
13380 (self.end.0 - self.start.0) as usize
13381 }
13382
13383 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
13384 (self.start.0..self.end.0).map(MultiBufferRow)
13385 }
13386}
13387
13388impl RowRangeExt for Range<DisplayRow> {
13389 type Row = DisplayRow;
13390
13391 fn len(&self) -> usize {
13392 (self.end.0 - self.start.0) as usize
13393 }
13394
13395 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
13396 (self.start.0..self.end.0).map(DisplayRow)
13397 }
13398}
13399
13400fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
13401 if hunk.diff_base_byte_range.is_empty() {
13402 DiffHunkStatus::Added
13403 } else if hunk.associated_range.is_empty() {
13404 DiffHunkStatus::Removed
13405 } else {
13406 DiffHunkStatus::Modified
13407 }
13408}
13409
13410/// If select range has more than one line, we
13411/// just point the cursor to range.start.
13412fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
13413 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
13414 range
13415 } else {
13416 range.start..range.start
13417 }
13418}