1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behavior.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18mod clangd_ext;
19mod debounced_delay;
20pub mod display_map;
21mod editor_settings;
22mod editor_settings_controls;
23mod element;
24mod git;
25mod highlight_matching_bracket;
26mod hover_links;
27mod hover_popover;
28mod hunk_diff;
29mod indent_guides;
30mod inlay_hint_cache;
31mod inline_completion_provider;
32pub mod items;
33mod linked_editing_ranges;
34mod lsp_ext;
35mod mouse_context_menu;
36pub mod movement;
37mod persistence;
38mod rust_analyzer_ext;
39pub mod scroll;
40mod selections_collection;
41pub mod tasks;
42
43#[cfg(test)]
44mod editor_tests;
45mod signature_help;
46#[cfg(any(test, feature = "test-support"))]
47pub mod test;
48
49use ::git::diff::{DiffHunk, DiffHunkStatus};
50use ::git::{parse_git_remote_url, BuildPermalinkParams, GitHostingProviderRegistry};
51pub(crate) use actions::*;
52use aho_corasick::AhoCorasick;
53use anyhow::{anyhow, Context as _, Result};
54use blink_manager::BlinkManager;
55use client::{Collaborator, ParticipantIndex};
56use clock::ReplicaId;
57use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
58use convert_case::{Case, Casing};
59use debounced_delay::DebouncedDelay;
60use display_map::*;
61pub use display_map::{DisplayPoint, FoldPlaceholder};
62pub use editor_settings::{
63 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings,
64};
65pub use editor_settings_controls::*;
66use element::LineWithInvisibles;
67pub use element::{
68 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
69};
70use futures::FutureExt;
71use fuzzy::{StringMatch, StringMatchCandidate};
72use git::blame::GitBlame;
73use git::diff_hunk_to_display;
74use gpui::{
75 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
76 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardEntry,
77 ClipboardItem, Context, DispatchPhase, ElementId, EntityId, EventEmitter, FocusHandle,
78 FocusOutEvent, FocusableView, FontId, FontWeight, HighlightStyle, Hsla, InteractiveText,
79 KeyContext, ListSizingBehavior, Model, MouseButton, PaintQuad, ParentElement, Pixels, Render,
80 SharedString, Size, StrikethroughStyle, Styled, StyledText, Subscription, Task, TextStyle,
81 UTF16Selection, UnderlineStyle, UniformListScrollHandle, View, ViewContext, ViewInputHandler,
82 VisualContext, WeakFocusHandle, WeakView, WindowContext,
83};
84use highlight_matching_bracket::refresh_matching_bracket_highlights;
85use hover_popover::{hide_hover, HoverState};
86use hunk_diff::ExpandedHunks;
87pub(crate) use hunk_diff::HoveredHunk;
88use indent_guides::ActiveIndentGuidesState;
89use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
90pub use inline_completion_provider::*;
91pub use items::MAX_TAB_TITLE_LEN;
92use itertools::Itertools;
93use language::{
94 language_settings::{self, all_language_settings, InlayHintSettings},
95 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
96 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
97 Point, Selection, SelectionGoal, TransactionId,
98};
99use language::{point_to_lsp, BufferRow, CharClassifier, Runnable, RunnableRange};
100use linked_editing_ranges::refresh_linked_ranges;
101use similar::{ChangeTag, TextDiff};
102use task::{ResolvedTask, TaskTemplate, TaskVariables};
103
104use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
105pub use lsp::CompletionContext;
106use lsp::{
107 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
108 LanguageServerId,
109};
110use mouse_context_menu::MouseContextMenu;
111use movement::TextLayoutDetails;
112pub use multi_buffer::{
113 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
114 ToPoint,
115};
116use multi_buffer::{ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16};
117use ordered_float::OrderedFloat;
118use parking_lot::{Mutex, RwLock};
119use project::project_settings::{GitGutterSetting, ProjectSettings};
120use project::{
121 CodeAction, Completion, CompletionIntent, FormatTrigger, Item, Location, Project, ProjectPath,
122 ProjectTransaction, TaskSourceKind,
123};
124use rand::prelude::*;
125use rpc::{proto::*, ErrorExt};
126use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
127use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
128use serde::{Deserialize, Serialize};
129use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
130use smallvec::SmallVec;
131use snippet::Snippet;
132use std::{
133 any::TypeId,
134 borrow::Cow,
135 cell::RefCell,
136 cmp::{self, Ordering, Reverse},
137 mem,
138 num::NonZeroU32,
139 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
140 path::{Path, PathBuf},
141 rc::Rc,
142 sync::Arc,
143 time::{Duration, Instant},
144};
145pub use sum_tree::Bias;
146use sum_tree::TreeMap;
147use text::{BufferId, OffsetUtf16, Rope};
148use theme::{
149 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
150 ThemeColors, ThemeSettings,
151};
152use ui::{
153 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
154 ListItem, Popover, Tooltip,
155};
156use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
157use workspace::item::{ItemHandle, PreviewTabsSettings};
158use workspace::notifications::{DetachAndPromptErr, NotificationId};
159use workspace::{
160 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
161};
162use workspace::{OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
163
164use crate::hover_links::find_url;
165use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
166
167pub const FILE_HEADER_HEIGHT: u32 = 1;
168pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
169pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
170pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
171const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
172const MAX_LINE_LEN: usize = 1024;
173const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
174const MAX_SELECTION_HISTORY_LEN: usize = 1024;
175pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
176#[doc(hidden)]
177pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
178#[doc(hidden)]
179pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
180
181pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
182pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
183
184pub fn render_parsed_markdown(
185 element_id: impl Into<ElementId>,
186 parsed: &language::ParsedMarkdown,
187 editor_style: &EditorStyle,
188 workspace: Option<WeakView<Workspace>>,
189 cx: &mut WindowContext,
190) -> InteractiveText {
191 let code_span_background_color = cx
192 .theme()
193 .colors()
194 .editor_document_highlight_read_background;
195
196 let highlights = gpui::combine_highlights(
197 parsed.highlights.iter().filter_map(|(range, highlight)| {
198 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
199 Some((range.clone(), highlight))
200 }),
201 parsed
202 .regions
203 .iter()
204 .zip(&parsed.region_ranges)
205 .filter_map(|(region, range)| {
206 if region.code {
207 Some((
208 range.clone(),
209 HighlightStyle {
210 background_color: Some(code_span_background_color),
211 ..Default::default()
212 },
213 ))
214 } else {
215 None
216 }
217 }),
218 );
219
220 let mut links = Vec::new();
221 let mut link_ranges = Vec::new();
222 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
223 if let Some(link) = region.link.clone() {
224 links.push(link);
225 link_ranges.push(range.clone());
226 }
227 }
228
229 InteractiveText::new(
230 element_id,
231 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
232 )
233 .on_click(link_ranges, move |clicked_range_ix, cx| {
234 match &links[clicked_range_ix] {
235 markdown::Link::Web { url } => cx.open_url(url),
236 markdown::Link::Path { path } => {
237 if let Some(workspace) = &workspace {
238 _ = workspace.update(cx, |workspace, cx| {
239 workspace.open_abs_path(path.clone(), false, cx).detach();
240 });
241 }
242 }
243 }
244 })
245}
246
247#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
248pub(crate) enum InlayId {
249 Suggestion(usize),
250 Hint(usize),
251}
252
253impl InlayId {
254 fn id(&self) -> usize {
255 match self {
256 Self::Suggestion(id) => *id,
257 Self::Hint(id) => *id,
258 }
259 }
260}
261
262enum DiffRowHighlight {}
263enum DocumentHighlightRead {}
264enum DocumentHighlightWrite {}
265enum InputComposition {}
266
267#[derive(Copy, Clone, PartialEq, Eq)]
268pub enum Direction {
269 Prev,
270 Next,
271}
272
273#[derive(Debug, Copy, Clone, PartialEq, Eq)]
274pub enum Navigated {
275 Yes,
276 No,
277}
278
279impl Navigated {
280 pub fn from_bool(yes: bool) -> Navigated {
281 if yes {
282 Navigated::Yes
283 } else {
284 Navigated::No
285 }
286 }
287}
288
289pub fn init_settings(cx: &mut AppContext) {
290 EditorSettings::register(cx);
291}
292
293pub fn init(cx: &mut AppContext) {
294 init_settings(cx);
295
296 workspace::register_project_item::<Editor>(cx);
297 workspace::FollowableViewRegistry::register::<Editor>(cx);
298 workspace::register_serializable_item::<Editor>(cx);
299
300 cx.observe_new_views(
301 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
302 workspace.register_action(Editor::new_file);
303 workspace.register_action(Editor::new_file_vertical);
304 workspace.register_action(Editor::new_file_horizontal);
305 },
306 )
307 .detach();
308
309 cx.on_action(move |_: &workspace::NewFile, cx| {
310 let app_state = workspace::AppState::global(cx);
311 if let Some(app_state) = app_state.upgrade() {
312 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
313 Editor::new_file(workspace, &Default::default(), cx)
314 })
315 .detach();
316 }
317 });
318 cx.on_action(move |_: &workspace::NewWindow, cx| {
319 let app_state = workspace::AppState::global(cx);
320 if let Some(app_state) = app_state.upgrade() {
321 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
322 Editor::new_file(workspace, &Default::default(), cx)
323 })
324 .detach();
325 }
326 });
327}
328
329pub struct SearchWithinRange;
330
331trait InvalidationRegion {
332 fn ranges(&self) -> &[Range<Anchor>];
333}
334
335#[derive(Clone, Debug, PartialEq)]
336pub enum SelectPhase {
337 Begin {
338 position: DisplayPoint,
339 add: bool,
340 click_count: usize,
341 },
342 BeginColumnar {
343 position: DisplayPoint,
344 reset: bool,
345 goal_column: u32,
346 },
347 Extend {
348 position: DisplayPoint,
349 click_count: usize,
350 },
351 Update {
352 position: DisplayPoint,
353 goal_column: u32,
354 scroll_delta: gpui::Point<f32>,
355 },
356 End,
357}
358
359#[derive(Clone, Debug)]
360pub enum SelectMode {
361 Character,
362 Word(Range<Anchor>),
363 Line(Range<Anchor>),
364 All,
365}
366
367#[derive(Copy, Clone, PartialEq, Eq, Debug)]
368pub enum EditorMode {
369 SingleLine { auto_width: bool },
370 AutoHeight { max_lines: usize },
371 Full,
372}
373
374#[derive(Clone, Debug)]
375pub enum SoftWrap {
376 None,
377 PreferLine,
378 EditorWidth,
379 Column(u32),
380 Bounded(u32),
381}
382
383#[derive(Clone)]
384pub struct EditorStyle {
385 pub background: Hsla,
386 pub local_player: PlayerColor,
387 pub text: TextStyle,
388 pub scrollbar_width: Pixels,
389 pub syntax: Arc<SyntaxTheme>,
390 pub status: StatusColors,
391 pub inlay_hints_style: HighlightStyle,
392 pub suggestions_style: HighlightStyle,
393 pub unnecessary_code_fade: f32,
394}
395
396impl Default for EditorStyle {
397 fn default() -> Self {
398 Self {
399 background: Hsla::default(),
400 local_player: PlayerColor::default(),
401 text: TextStyle::default(),
402 scrollbar_width: Pixels::default(),
403 syntax: Default::default(),
404 // HACK: Status colors don't have a real default.
405 // We should look into removing the status colors from the editor
406 // style and retrieve them directly from the theme.
407 status: StatusColors::dark(),
408 inlay_hints_style: HighlightStyle::default(),
409 suggestions_style: HighlightStyle::default(),
410 unnecessary_code_fade: Default::default(),
411 }
412 }
413}
414
415pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
416 let show_background = all_language_settings(None, cx)
417 .language(None)
418 .inlay_hints
419 .show_background;
420
421 HighlightStyle {
422 color: Some(cx.theme().status().hint),
423 background_color: show_background.then(|| cx.theme().status().hint_background),
424 ..HighlightStyle::default()
425 }
426}
427
428type CompletionId = usize;
429
430#[derive(Clone, Debug)]
431struct CompletionState {
432 // render_inlay_ids represents the inlay hints that are inserted
433 // for rendering the inline completions. They may be discontinuous
434 // in the event that the completion provider returns some intersection
435 // with the existing content.
436 render_inlay_ids: Vec<InlayId>,
437 // text is the resulting rope that is inserted when the user accepts a completion.
438 text: Rope,
439 // position is the position of the cursor when the completion was triggered.
440 position: multi_buffer::Anchor,
441 // delete_range is the range of text that this completion state covers.
442 // if the completion is accepted, this range should be deleted.
443 delete_range: Option<Range<multi_buffer::Anchor>>,
444}
445
446#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
447struct EditorActionId(usize);
448
449impl EditorActionId {
450 pub fn post_inc(&mut self) -> Self {
451 let answer = self.0;
452
453 *self = Self(answer + 1);
454
455 Self(answer)
456 }
457}
458
459// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
460// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
461
462type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
463type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
464
465#[derive(Default)]
466struct ScrollbarMarkerState {
467 scrollbar_size: Size<Pixels>,
468 dirty: bool,
469 markers: Arc<[PaintQuad]>,
470 pending_refresh: Option<Task<Result<()>>>,
471}
472
473impl ScrollbarMarkerState {
474 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
475 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
476 }
477}
478
479#[derive(Clone, Debug)]
480struct RunnableTasks {
481 templates: Vec<(TaskSourceKind, TaskTemplate)>,
482 offset: MultiBufferOffset,
483 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
484 column: u32,
485 // Values of all named captures, including those starting with '_'
486 extra_variables: HashMap<String, String>,
487 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
488 context_range: Range<BufferOffset>,
489}
490
491#[derive(Clone)]
492struct ResolvedTasks {
493 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
494 position: Anchor,
495}
496#[derive(Copy, Clone, Debug)]
497struct MultiBufferOffset(usize);
498#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
499struct BufferOffset(usize);
500
501// Addons allow storing per-editor state in other crates (e.g. Vim)
502pub trait Addon: 'static {
503 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
504
505 fn to_any(&self) -> &dyn std::any::Any;
506}
507
508/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
509///
510/// See the [module level documentation](self) for more information.
511pub struct Editor {
512 focus_handle: FocusHandle,
513 last_focused_descendant: Option<WeakFocusHandle>,
514 /// The text buffer being edited
515 buffer: Model<MultiBuffer>,
516 /// Map of how text in the buffer should be displayed.
517 /// Handles soft wraps, folds, fake inlay text insertions, etc.
518 pub display_map: Model<DisplayMap>,
519 pub selections: SelectionsCollection,
520 pub scroll_manager: ScrollManager,
521 /// When inline assist editors are linked, they all render cursors because
522 /// typing enters text into each of them, even the ones that aren't focused.
523 pub(crate) show_cursor_when_unfocused: bool,
524 columnar_selection_tail: Option<Anchor>,
525 add_selections_state: Option<AddSelectionsState>,
526 select_next_state: Option<SelectNextState>,
527 select_prev_state: Option<SelectNextState>,
528 selection_history: SelectionHistory,
529 autoclose_regions: Vec<AutocloseRegion>,
530 snippet_stack: InvalidationStack<SnippetState>,
531 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
532 ime_transaction: Option<TransactionId>,
533 active_diagnostics: Option<ActiveDiagnosticGroup>,
534 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
535 project: Option<Model<Project>>,
536 completion_provider: Option<Box<dyn CompletionProvider>>,
537 collaboration_hub: Option<Box<dyn CollaborationHub>>,
538 blink_manager: Model<BlinkManager>,
539 show_cursor_names: bool,
540 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
541 pub show_local_selections: bool,
542 mode: EditorMode,
543 show_breadcrumbs: bool,
544 show_gutter: bool,
545 show_line_numbers: Option<bool>,
546 use_relative_line_numbers: Option<bool>,
547 show_git_diff_gutter: Option<bool>,
548 show_code_actions: Option<bool>,
549 show_runnables: Option<bool>,
550 show_wrap_guides: Option<bool>,
551 show_indent_guides: Option<bool>,
552 placeholder_text: Option<Arc<str>>,
553 highlight_order: usize,
554 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
555 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
556 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
557 scrollbar_marker_state: ScrollbarMarkerState,
558 active_indent_guides_state: ActiveIndentGuidesState,
559 nav_history: Option<ItemNavHistory>,
560 context_menu: RwLock<Option<ContextMenu>>,
561 mouse_context_menu: Option<MouseContextMenu>,
562 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
563 signature_help_state: SignatureHelpState,
564 auto_signature_help: Option<bool>,
565 find_all_references_task_sources: Vec<Anchor>,
566 next_completion_id: CompletionId,
567 completion_documentation_pre_resolve_debounce: DebouncedDelay,
568 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
569 code_actions_task: Option<Task<()>>,
570 document_highlights_task: Option<Task<()>>,
571 linked_editing_range_task: Option<Task<Option<()>>>,
572 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
573 pending_rename: Option<RenameState>,
574 searchable: bool,
575 cursor_shape: CursorShape,
576 current_line_highlight: Option<CurrentLineHighlight>,
577 collapse_matches: bool,
578 autoindent_mode: Option<AutoindentMode>,
579 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
580 input_enabled: bool,
581 use_modal_editing: bool,
582 read_only: bool,
583 leader_peer_id: Option<PeerId>,
584 remote_id: Option<ViewId>,
585 hover_state: HoverState,
586 gutter_hovered: bool,
587 hovered_link_state: Option<HoveredLinkState>,
588 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
589 active_inline_completion: Option<CompletionState>,
590 // enable_inline_completions is a switch that Vim can use to disable
591 // inline completions based on its mode.
592 enable_inline_completions: bool,
593 show_inline_completions_override: Option<bool>,
594 inlay_hint_cache: InlayHintCache,
595 expanded_hunks: ExpandedHunks,
596 next_inlay_id: usize,
597 _subscriptions: Vec<Subscription>,
598 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
599 gutter_dimensions: GutterDimensions,
600 style: Option<EditorStyle>,
601 next_editor_action_id: EditorActionId,
602 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
603 use_autoclose: bool,
604 use_auto_surround: bool,
605 auto_replace_emoji_shortcode: bool,
606 show_git_blame_gutter: bool,
607 show_git_blame_inline: bool,
608 show_git_blame_inline_delay_task: Option<Task<()>>,
609 git_blame_inline_enabled: bool,
610 serialize_dirty_buffers: bool,
611 show_selection_menu: Option<bool>,
612 blame: Option<Model<GitBlame>>,
613 blame_subscription: Option<Subscription>,
614 custom_context_menu: Option<
615 Box<
616 dyn 'static
617 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
618 >,
619 >,
620 last_bounds: Option<Bounds<Pixels>>,
621 expect_bounds_change: Option<Bounds<Pixels>>,
622 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
623 tasks_update_task: Option<Task<()>>,
624 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
625 file_header_size: u32,
626 breadcrumb_header: Option<String>,
627 focused_block: Option<FocusedBlock>,
628 next_scroll_position: NextScrollCursorCenterTopBottom,
629 addons: HashMap<TypeId, Box<dyn Addon>>,
630 _scroll_cursor_center_top_bottom_task: Task<()>,
631}
632
633#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
634enum NextScrollCursorCenterTopBottom {
635 #[default]
636 Center,
637 Top,
638 Bottom,
639}
640
641impl NextScrollCursorCenterTopBottom {
642 fn next(&self) -> Self {
643 match self {
644 Self::Center => Self::Top,
645 Self::Top => Self::Bottom,
646 Self::Bottom => Self::Center,
647 }
648 }
649}
650
651#[derive(Clone)]
652pub struct EditorSnapshot {
653 pub mode: EditorMode,
654 show_gutter: bool,
655 show_line_numbers: Option<bool>,
656 show_git_diff_gutter: Option<bool>,
657 show_code_actions: Option<bool>,
658 show_runnables: Option<bool>,
659 render_git_blame_gutter: bool,
660 pub display_snapshot: DisplaySnapshot,
661 pub placeholder_text: Option<Arc<str>>,
662 is_focused: bool,
663 scroll_anchor: ScrollAnchor,
664 ongoing_scroll: OngoingScroll,
665 current_line_highlight: CurrentLineHighlight,
666 gutter_hovered: bool,
667}
668
669const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
670
671#[derive(Default, Debug, Clone, Copy)]
672pub struct GutterDimensions {
673 pub left_padding: Pixels,
674 pub right_padding: Pixels,
675 pub width: Pixels,
676 pub margin: Pixels,
677 pub git_blame_entries_width: Option<Pixels>,
678}
679
680impl GutterDimensions {
681 /// The full width of the space taken up by the gutter.
682 pub fn full_width(&self) -> Pixels {
683 self.margin + self.width
684 }
685
686 /// The width of the space reserved for the fold indicators,
687 /// use alongside 'justify_end' and `gutter_width` to
688 /// right align content with the line numbers
689 pub fn fold_area_width(&self) -> Pixels {
690 self.margin + self.right_padding
691 }
692}
693
694#[derive(Debug)]
695pub struct RemoteSelection {
696 pub replica_id: ReplicaId,
697 pub selection: Selection<Anchor>,
698 pub cursor_shape: CursorShape,
699 pub peer_id: PeerId,
700 pub line_mode: bool,
701 pub participant_index: Option<ParticipantIndex>,
702 pub user_name: Option<SharedString>,
703}
704
705#[derive(Clone, Debug)]
706struct SelectionHistoryEntry {
707 selections: Arc<[Selection<Anchor>]>,
708 select_next_state: Option<SelectNextState>,
709 select_prev_state: Option<SelectNextState>,
710 add_selections_state: Option<AddSelectionsState>,
711}
712
713enum SelectionHistoryMode {
714 Normal,
715 Undoing,
716 Redoing,
717}
718
719#[derive(Clone, PartialEq, Eq, Hash)]
720struct HoveredCursor {
721 replica_id: u16,
722 selection_id: usize,
723}
724
725impl Default for SelectionHistoryMode {
726 fn default() -> Self {
727 Self::Normal
728 }
729}
730
731#[derive(Default)]
732struct SelectionHistory {
733 #[allow(clippy::type_complexity)]
734 selections_by_transaction:
735 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
736 mode: SelectionHistoryMode,
737 undo_stack: VecDeque<SelectionHistoryEntry>,
738 redo_stack: VecDeque<SelectionHistoryEntry>,
739}
740
741impl SelectionHistory {
742 fn insert_transaction(
743 &mut self,
744 transaction_id: TransactionId,
745 selections: Arc<[Selection<Anchor>]>,
746 ) {
747 self.selections_by_transaction
748 .insert(transaction_id, (selections, None));
749 }
750
751 #[allow(clippy::type_complexity)]
752 fn transaction(
753 &self,
754 transaction_id: TransactionId,
755 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
756 self.selections_by_transaction.get(&transaction_id)
757 }
758
759 #[allow(clippy::type_complexity)]
760 fn transaction_mut(
761 &mut self,
762 transaction_id: TransactionId,
763 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
764 self.selections_by_transaction.get_mut(&transaction_id)
765 }
766
767 fn push(&mut self, entry: SelectionHistoryEntry) {
768 if !entry.selections.is_empty() {
769 match self.mode {
770 SelectionHistoryMode::Normal => {
771 self.push_undo(entry);
772 self.redo_stack.clear();
773 }
774 SelectionHistoryMode::Undoing => self.push_redo(entry),
775 SelectionHistoryMode::Redoing => self.push_undo(entry),
776 }
777 }
778 }
779
780 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
781 if self
782 .undo_stack
783 .back()
784 .map_or(true, |e| e.selections != entry.selections)
785 {
786 self.undo_stack.push_back(entry);
787 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
788 self.undo_stack.pop_front();
789 }
790 }
791 }
792
793 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
794 if self
795 .redo_stack
796 .back()
797 .map_or(true, |e| e.selections != entry.selections)
798 {
799 self.redo_stack.push_back(entry);
800 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
801 self.redo_stack.pop_front();
802 }
803 }
804 }
805}
806
807struct RowHighlight {
808 index: usize,
809 range: RangeInclusive<Anchor>,
810 color: Option<Hsla>,
811 should_autoscroll: bool,
812}
813
814#[derive(Clone, Debug)]
815struct AddSelectionsState {
816 above: bool,
817 stack: Vec<usize>,
818}
819
820#[derive(Clone)]
821struct SelectNextState {
822 query: AhoCorasick,
823 wordwise: bool,
824 done: bool,
825}
826
827impl std::fmt::Debug for SelectNextState {
828 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
829 f.debug_struct(std::any::type_name::<Self>())
830 .field("wordwise", &self.wordwise)
831 .field("done", &self.done)
832 .finish()
833 }
834}
835
836#[derive(Debug)]
837struct AutocloseRegion {
838 selection_id: usize,
839 range: Range<Anchor>,
840 pair: BracketPair,
841}
842
843#[derive(Debug)]
844struct SnippetState {
845 ranges: Vec<Vec<Range<Anchor>>>,
846 active_index: usize,
847}
848
849#[doc(hidden)]
850pub struct RenameState {
851 pub range: Range<Anchor>,
852 pub old_name: Arc<str>,
853 pub editor: View<Editor>,
854 block_id: CustomBlockId,
855}
856
857struct InvalidationStack<T>(Vec<T>);
858
859struct RegisteredInlineCompletionProvider {
860 provider: Arc<dyn InlineCompletionProviderHandle>,
861 _subscription: Subscription,
862}
863
864enum ContextMenu {
865 Completions(CompletionsMenu),
866 CodeActions(CodeActionsMenu),
867}
868
869impl ContextMenu {
870 fn select_first(
871 &mut self,
872 project: Option<&Model<Project>>,
873 cx: &mut ViewContext<Editor>,
874 ) -> bool {
875 if self.visible() {
876 match self {
877 ContextMenu::Completions(menu) => menu.select_first(project, cx),
878 ContextMenu::CodeActions(menu) => menu.select_first(cx),
879 }
880 true
881 } else {
882 false
883 }
884 }
885
886 fn select_prev(
887 &mut self,
888 project: Option<&Model<Project>>,
889 cx: &mut ViewContext<Editor>,
890 ) -> bool {
891 if self.visible() {
892 match self {
893 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
894 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
895 }
896 true
897 } else {
898 false
899 }
900 }
901
902 fn select_next(
903 &mut self,
904 project: Option<&Model<Project>>,
905 cx: &mut ViewContext<Editor>,
906 ) -> bool {
907 if self.visible() {
908 match self {
909 ContextMenu::Completions(menu) => menu.select_next(project, cx),
910 ContextMenu::CodeActions(menu) => menu.select_next(cx),
911 }
912 true
913 } else {
914 false
915 }
916 }
917
918 fn select_last(
919 &mut self,
920 project: Option<&Model<Project>>,
921 cx: &mut ViewContext<Editor>,
922 ) -> bool {
923 if self.visible() {
924 match self {
925 ContextMenu::Completions(menu) => menu.select_last(project, cx),
926 ContextMenu::CodeActions(menu) => menu.select_last(cx),
927 }
928 true
929 } else {
930 false
931 }
932 }
933
934 fn visible(&self) -> bool {
935 match self {
936 ContextMenu::Completions(menu) => menu.visible(),
937 ContextMenu::CodeActions(menu) => menu.visible(),
938 }
939 }
940
941 fn render(
942 &self,
943 cursor_position: DisplayPoint,
944 style: &EditorStyle,
945 max_height: Pixels,
946 workspace: Option<WeakView<Workspace>>,
947 cx: &mut ViewContext<Editor>,
948 ) -> (ContextMenuOrigin, AnyElement) {
949 match self {
950 ContextMenu::Completions(menu) => (
951 ContextMenuOrigin::EditorPoint(cursor_position),
952 menu.render(style, max_height, workspace, cx),
953 ),
954 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
955 }
956 }
957}
958
959enum ContextMenuOrigin {
960 EditorPoint(DisplayPoint),
961 GutterIndicator(DisplayRow),
962}
963
964#[derive(Clone)]
965struct CompletionsMenu {
966 id: CompletionId,
967 sort_completions: bool,
968 initial_position: Anchor,
969 buffer: Model<Buffer>,
970 completions: Arc<RwLock<Box<[Completion]>>>,
971 match_candidates: Arc<[StringMatchCandidate]>,
972 matches: Arc<[StringMatch]>,
973 selected_item: usize,
974 scroll_handle: UniformListScrollHandle,
975 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
976}
977
978impl CompletionsMenu {
979 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
980 self.selected_item = 0;
981 self.scroll_handle.scroll_to_item(self.selected_item);
982 self.attempt_resolve_selected_completion_documentation(project, cx);
983 cx.notify();
984 }
985
986 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
987 if self.selected_item > 0 {
988 self.selected_item -= 1;
989 } else {
990 self.selected_item = self.matches.len() - 1;
991 }
992 self.scroll_handle.scroll_to_item(self.selected_item);
993 self.attempt_resolve_selected_completion_documentation(project, cx);
994 cx.notify();
995 }
996
997 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
998 if self.selected_item + 1 < self.matches.len() {
999 self.selected_item += 1;
1000 } else {
1001 self.selected_item = 0;
1002 }
1003 self.scroll_handle.scroll_to_item(self.selected_item);
1004 self.attempt_resolve_selected_completion_documentation(project, cx);
1005 cx.notify();
1006 }
1007
1008 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
1009 self.selected_item = self.matches.len() - 1;
1010 self.scroll_handle.scroll_to_item(self.selected_item);
1011 self.attempt_resolve_selected_completion_documentation(project, cx);
1012 cx.notify();
1013 }
1014
1015 fn pre_resolve_completion_documentation(
1016 buffer: Model<Buffer>,
1017 completions: Arc<RwLock<Box<[Completion]>>>,
1018 matches: Arc<[StringMatch]>,
1019 editor: &Editor,
1020 cx: &mut ViewContext<Editor>,
1021 ) -> Task<()> {
1022 let settings = EditorSettings::get_global(cx);
1023 if !settings.show_completion_documentation {
1024 return Task::ready(());
1025 }
1026
1027 let Some(provider) = editor.completion_provider.as_ref() else {
1028 return Task::ready(());
1029 };
1030
1031 let resolve_task = provider.resolve_completions(
1032 buffer,
1033 matches.iter().map(|m| m.candidate_id).collect(),
1034 completions.clone(),
1035 cx,
1036 );
1037
1038 cx.spawn(move |this, mut cx| async move {
1039 if let Some(true) = resolve_task.await.log_err() {
1040 this.update(&mut cx, |_, cx| cx.notify()).ok();
1041 }
1042 })
1043 }
1044
1045 fn attempt_resolve_selected_completion_documentation(
1046 &mut self,
1047 project: Option<&Model<Project>>,
1048 cx: &mut ViewContext<Editor>,
1049 ) {
1050 let settings = EditorSettings::get_global(cx);
1051 if !settings.show_completion_documentation {
1052 return;
1053 }
1054
1055 let completion_index = self.matches[self.selected_item].candidate_id;
1056 let Some(project) = project else {
1057 return;
1058 };
1059
1060 let resolve_task = project.update(cx, |project, cx| {
1061 project.resolve_completions(
1062 self.buffer.clone(),
1063 vec![completion_index],
1064 self.completions.clone(),
1065 cx,
1066 )
1067 });
1068
1069 let delay_ms =
1070 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1071 let delay = Duration::from_millis(delay_ms);
1072
1073 self.selected_completion_documentation_resolve_debounce
1074 .lock()
1075 .fire_new(delay, cx, |_, cx| {
1076 cx.spawn(move |this, mut cx| async move {
1077 if let Some(true) = resolve_task.await.log_err() {
1078 this.update(&mut cx, |_, cx| cx.notify()).ok();
1079 }
1080 })
1081 });
1082 }
1083
1084 fn visible(&self) -> bool {
1085 !self.matches.is_empty()
1086 }
1087
1088 fn render(
1089 &self,
1090 style: &EditorStyle,
1091 max_height: Pixels,
1092 workspace: Option<WeakView<Workspace>>,
1093 cx: &mut ViewContext<Editor>,
1094 ) -> AnyElement {
1095 let settings = EditorSettings::get_global(cx);
1096 let show_completion_documentation = settings.show_completion_documentation;
1097
1098 let widest_completion_ix = self
1099 .matches
1100 .iter()
1101 .enumerate()
1102 .max_by_key(|(_, mat)| {
1103 let completions = self.completions.read();
1104 let completion = &completions[mat.candidate_id];
1105 let documentation = &completion.documentation;
1106
1107 let mut len = completion.label.text.chars().count();
1108 if let Some(Documentation::SingleLine(text)) = documentation {
1109 if show_completion_documentation {
1110 len += text.chars().count();
1111 }
1112 }
1113
1114 len
1115 })
1116 .map(|(ix, _)| ix);
1117
1118 let completions = self.completions.clone();
1119 let matches = self.matches.clone();
1120 let selected_item = self.selected_item;
1121 let style = style.clone();
1122
1123 let multiline_docs = if show_completion_documentation {
1124 let mat = &self.matches[selected_item];
1125 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1126 Some(Documentation::MultiLinePlainText(text)) => {
1127 Some(div().child(SharedString::from(text.clone())))
1128 }
1129 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1130 Some(div().child(render_parsed_markdown(
1131 "completions_markdown",
1132 parsed,
1133 &style,
1134 workspace,
1135 cx,
1136 )))
1137 }
1138 _ => None,
1139 };
1140 multiline_docs.map(|div| {
1141 div.id("multiline_docs")
1142 .max_h(max_height)
1143 .flex_1()
1144 .px_1p5()
1145 .py_1()
1146 .min_w(px(260.))
1147 .max_w(px(640.))
1148 .w(px(500.))
1149 .overflow_y_scroll()
1150 .occlude()
1151 })
1152 } else {
1153 None
1154 };
1155
1156 let list = uniform_list(
1157 cx.view().clone(),
1158 "completions",
1159 matches.len(),
1160 move |_editor, range, cx| {
1161 let start_ix = range.start;
1162 let completions_guard = completions.read();
1163
1164 matches[range]
1165 .iter()
1166 .enumerate()
1167 .map(|(ix, mat)| {
1168 let item_ix = start_ix + ix;
1169 let candidate_id = mat.candidate_id;
1170 let completion = &completions_guard[candidate_id];
1171
1172 let documentation = if show_completion_documentation {
1173 &completion.documentation
1174 } else {
1175 &None
1176 };
1177
1178 let highlights = gpui::combine_highlights(
1179 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1180 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1181 |(range, mut highlight)| {
1182 // Ignore font weight for syntax highlighting, as we'll use it
1183 // for fuzzy matches.
1184 highlight.font_weight = None;
1185
1186 if completion.lsp_completion.deprecated.unwrap_or(false) {
1187 highlight.strikethrough = Some(StrikethroughStyle {
1188 thickness: 1.0.into(),
1189 ..Default::default()
1190 });
1191 highlight.color = Some(cx.theme().colors().text_muted);
1192 }
1193
1194 (range, highlight)
1195 },
1196 ),
1197 );
1198 let completion_label = StyledText::new(completion.label.text.clone())
1199 .with_highlights(&style.text, highlights);
1200 let documentation_label =
1201 if let Some(Documentation::SingleLine(text)) = documentation {
1202 if text.trim().is_empty() {
1203 None
1204 } else {
1205 Some(
1206 Label::new(text.clone())
1207 .ml_4()
1208 .size(LabelSize::Small)
1209 .color(Color::Muted),
1210 )
1211 }
1212 } else {
1213 None
1214 };
1215
1216 div().min_w(px(220.)).max_w(px(540.)).child(
1217 ListItem::new(mat.candidate_id)
1218 .inset(true)
1219 .selected(item_ix == selected_item)
1220 .on_click(cx.listener(move |editor, _event, cx| {
1221 cx.stop_propagation();
1222 if let Some(task) = editor.confirm_completion(
1223 &ConfirmCompletion {
1224 item_ix: Some(item_ix),
1225 },
1226 cx,
1227 ) {
1228 task.detach_and_log_err(cx)
1229 }
1230 }))
1231 .child(h_flex().overflow_hidden().child(completion_label))
1232 .end_slot::<Label>(documentation_label),
1233 )
1234 })
1235 .collect()
1236 },
1237 )
1238 .occlude()
1239 .max_h(max_height)
1240 .track_scroll(self.scroll_handle.clone())
1241 .with_width_from_item(widest_completion_ix)
1242 .with_sizing_behavior(ListSizingBehavior::Infer);
1243
1244 Popover::new()
1245 .child(list)
1246 .when_some(multiline_docs, |popover, multiline_docs| {
1247 popover.aside(multiline_docs)
1248 })
1249 .into_any_element()
1250 }
1251
1252 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1253 let mut matches = if let Some(query) = query {
1254 fuzzy::match_strings(
1255 &self.match_candidates,
1256 query,
1257 query.chars().any(|c| c.is_uppercase()),
1258 100,
1259 &Default::default(),
1260 executor,
1261 )
1262 .await
1263 } else {
1264 self.match_candidates
1265 .iter()
1266 .enumerate()
1267 .map(|(candidate_id, candidate)| StringMatch {
1268 candidate_id,
1269 score: Default::default(),
1270 positions: Default::default(),
1271 string: candidate.string.clone(),
1272 })
1273 .collect()
1274 };
1275
1276 // Remove all candidates where the query's start does not match the start of any word in the candidate
1277 if let Some(query) = query {
1278 if let Some(query_start) = query.chars().next() {
1279 matches.retain(|string_match| {
1280 split_words(&string_match.string).any(|word| {
1281 // Check that the first codepoint of the word as lowercase matches the first
1282 // codepoint of the query as lowercase
1283 word.chars()
1284 .flat_map(|codepoint| codepoint.to_lowercase())
1285 .zip(query_start.to_lowercase())
1286 .all(|(word_cp, query_cp)| word_cp == query_cp)
1287 })
1288 });
1289 }
1290 }
1291
1292 let completions = self.completions.read();
1293 if self.sort_completions {
1294 matches.sort_unstable_by_key(|mat| {
1295 // We do want to strike a balance here between what the language server tells us
1296 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1297 // `Creat` and there is a local variable called `CreateComponent`).
1298 // So what we do is: we bucket all matches into two buckets
1299 // - Strong matches
1300 // - Weak matches
1301 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1302 // and the Weak matches are the rest.
1303 //
1304 // For the strong matches, we sort by the language-servers score first and for the weak
1305 // matches, we prefer our fuzzy finder first.
1306 //
1307 // The thinking behind that: it's useless to take the sort_text the language-server gives
1308 // us into account when it's obviously a bad match.
1309
1310 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1311 enum MatchScore<'a> {
1312 Strong {
1313 sort_text: Option<&'a str>,
1314 score: Reverse<OrderedFloat<f64>>,
1315 sort_key: (usize, &'a str),
1316 },
1317 Weak {
1318 score: Reverse<OrderedFloat<f64>>,
1319 sort_text: Option<&'a str>,
1320 sort_key: (usize, &'a str),
1321 },
1322 }
1323
1324 let completion = &completions[mat.candidate_id];
1325 let sort_key = completion.sort_key();
1326 let sort_text = completion.lsp_completion.sort_text.as_deref();
1327 let score = Reverse(OrderedFloat(mat.score));
1328
1329 if mat.score >= 0.2 {
1330 MatchScore::Strong {
1331 sort_text,
1332 score,
1333 sort_key,
1334 }
1335 } else {
1336 MatchScore::Weak {
1337 score,
1338 sort_text,
1339 sort_key,
1340 }
1341 }
1342 });
1343 }
1344
1345 for mat in &mut matches {
1346 let completion = &completions[mat.candidate_id];
1347 mat.string.clone_from(&completion.label.text);
1348 for position in &mut mat.positions {
1349 *position += completion.label.filter_range.start;
1350 }
1351 }
1352 drop(completions);
1353
1354 self.matches = matches.into();
1355 self.selected_item = 0;
1356 }
1357}
1358
1359#[derive(Clone)]
1360struct CodeActionContents {
1361 tasks: Option<Arc<ResolvedTasks>>,
1362 actions: Option<Arc<[CodeAction]>>,
1363}
1364
1365impl CodeActionContents {
1366 fn len(&self) -> usize {
1367 match (&self.tasks, &self.actions) {
1368 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1369 (Some(tasks), None) => tasks.templates.len(),
1370 (None, Some(actions)) => actions.len(),
1371 (None, None) => 0,
1372 }
1373 }
1374
1375 fn is_empty(&self) -> bool {
1376 match (&self.tasks, &self.actions) {
1377 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1378 (Some(tasks), None) => tasks.templates.is_empty(),
1379 (None, Some(actions)) => actions.is_empty(),
1380 (None, None) => true,
1381 }
1382 }
1383
1384 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1385 self.tasks
1386 .iter()
1387 .flat_map(|tasks| {
1388 tasks
1389 .templates
1390 .iter()
1391 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1392 })
1393 .chain(self.actions.iter().flat_map(|actions| {
1394 actions
1395 .iter()
1396 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1397 }))
1398 }
1399 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1400 match (&self.tasks, &self.actions) {
1401 (Some(tasks), Some(actions)) => {
1402 if index < tasks.templates.len() {
1403 tasks
1404 .templates
1405 .get(index)
1406 .cloned()
1407 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1408 } else {
1409 actions
1410 .get(index - tasks.templates.len())
1411 .cloned()
1412 .map(CodeActionsItem::CodeAction)
1413 }
1414 }
1415 (Some(tasks), None) => tasks
1416 .templates
1417 .get(index)
1418 .cloned()
1419 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1420 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1421 (None, None) => None,
1422 }
1423 }
1424}
1425
1426#[allow(clippy::large_enum_variant)]
1427#[derive(Clone)]
1428enum CodeActionsItem {
1429 Task(TaskSourceKind, ResolvedTask),
1430 CodeAction(CodeAction),
1431}
1432
1433impl CodeActionsItem {
1434 fn as_task(&self) -> Option<&ResolvedTask> {
1435 let Self::Task(_, task) = self else {
1436 return None;
1437 };
1438 Some(task)
1439 }
1440 fn as_code_action(&self) -> Option<&CodeAction> {
1441 let Self::CodeAction(action) = self else {
1442 return None;
1443 };
1444 Some(action)
1445 }
1446 fn label(&self) -> String {
1447 match self {
1448 Self::CodeAction(action) => action.lsp_action.title.clone(),
1449 Self::Task(_, task) => task.resolved_label.clone(),
1450 }
1451 }
1452}
1453
1454struct CodeActionsMenu {
1455 actions: CodeActionContents,
1456 buffer: Model<Buffer>,
1457 selected_item: usize,
1458 scroll_handle: UniformListScrollHandle,
1459 deployed_from_indicator: Option<DisplayRow>,
1460}
1461
1462impl CodeActionsMenu {
1463 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1464 self.selected_item = 0;
1465 self.scroll_handle.scroll_to_item(self.selected_item);
1466 cx.notify()
1467 }
1468
1469 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1470 if self.selected_item > 0 {
1471 self.selected_item -= 1;
1472 } else {
1473 self.selected_item = self.actions.len() - 1;
1474 }
1475 self.scroll_handle.scroll_to_item(self.selected_item);
1476 cx.notify();
1477 }
1478
1479 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1480 if self.selected_item + 1 < self.actions.len() {
1481 self.selected_item += 1;
1482 } else {
1483 self.selected_item = 0;
1484 }
1485 self.scroll_handle.scroll_to_item(self.selected_item);
1486 cx.notify();
1487 }
1488
1489 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1490 self.selected_item = self.actions.len() - 1;
1491 self.scroll_handle.scroll_to_item(self.selected_item);
1492 cx.notify()
1493 }
1494
1495 fn visible(&self) -> bool {
1496 !self.actions.is_empty()
1497 }
1498
1499 fn render(
1500 &self,
1501 cursor_position: DisplayPoint,
1502 _style: &EditorStyle,
1503 max_height: Pixels,
1504 cx: &mut ViewContext<Editor>,
1505 ) -> (ContextMenuOrigin, AnyElement) {
1506 let actions = self.actions.clone();
1507 let selected_item = self.selected_item;
1508 let element = uniform_list(
1509 cx.view().clone(),
1510 "code_actions_menu",
1511 self.actions.len(),
1512 move |_this, range, cx| {
1513 actions
1514 .iter()
1515 .skip(range.start)
1516 .take(range.end - range.start)
1517 .enumerate()
1518 .map(|(ix, action)| {
1519 let item_ix = range.start + ix;
1520 let selected = selected_item == item_ix;
1521 let colors = cx.theme().colors();
1522 div()
1523 .px_1()
1524 .rounded_md()
1525 .text_color(colors.text)
1526 .when(selected, |style| {
1527 style
1528 .bg(colors.element_active)
1529 .text_color(colors.text_accent)
1530 })
1531 .hover(|style| {
1532 style
1533 .bg(colors.element_hover)
1534 .text_color(colors.text_accent)
1535 })
1536 .whitespace_nowrap()
1537 .when_some(action.as_code_action(), |this, action| {
1538 this.on_mouse_down(
1539 MouseButton::Left,
1540 cx.listener(move |editor, _, cx| {
1541 cx.stop_propagation();
1542 if let Some(task) = editor.confirm_code_action(
1543 &ConfirmCodeAction {
1544 item_ix: Some(item_ix),
1545 },
1546 cx,
1547 ) {
1548 task.detach_and_log_err(cx)
1549 }
1550 }),
1551 )
1552 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1553 .child(SharedString::from(action.lsp_action.title.clone()))
1554 })
1555 .when_some(action.as_task(), |this, task| {
1556 this.on_mouse_down(
1557 MouseButton::Left,
1558 cx.listener(move |editor, _, cx| {
1559 cx.stop_propagation();
1560 if let Some(task) = editor.confirm_code_action(
1561 &ConfirmCodeAction {
1562 item_ix: Some(item_ix),
1563 },
1564 cx,
1565 ) {
1566 task.detach_and_log_err(cx)
1567 }
1568 }),
1569 )
1570 .child(SharedString::from(task.resolved_label.clone()))
1571 })
1572 })
1573 .collect()
1574 },
1575 )
1576 .elevation_1(cx)
1577 .p_1()
1578 .max_h(max_height)
1579 .occlude()
1580 .track_scroll(self.scroll_handle.clone())
1581 .with_width_from_item(
1582 self.actions
1583 .iter()
1584 .enumerate()
1585 .max_by_key(|(_, action)| match action {
1586 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1587 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1588 })
1589 .map(|(ix, _)| ix),
1590 )
1591 .with_sizing_behavior(ListSizingBehavior::Infer)
1592 .into_any_element();
1593
1594 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1595 ContextMenuOrigin::GutterIndicator(row)
1596 } else {
1597 ContextMenuOrigin::EditorPoint(cursor_position)
1598 };
1599
1600 (cursor_position, element)
1601 }
1602}
1603
1604#[derive(Debug)]
1605struct ActiveDiagnosticGroup {
1606 primary_range: Range<Anchor>,
1607 primary_message: String,
1608 group_id: usize,
1609 blocks: HashMap<CustomBlockId, Diagnostic>,
1610 is_valid: bool,
1611}
1612
1613#[derive(Serialize, Deserialize, Clone, Debug)]
1614pub struct ClipboardSelection {
1615 pub len: usize,
1616 pub is_entire_line: bool,
1617 pub first_line_indent: u32,
1618}
1619
1620#[derive(Debug)]
1621pub(crate) struct NavigationData {
1622 cursor_anchor: Anchor,
1623 cursor_position: Point,
1624 scroll_anchor: ScrollAnchor,
1625 scroll_top_row: u32,
1626}
1627
1628#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1629enum GotoDefinitionKind {
1630 Symbol,
1631 Declaration,
1632 Type,
1633 Implementation,
1634}
1635
1636#[derive(Debug, Clone)]
1637enum InlayHintRefreshReason {
1638 Toggle(bool),
1639 SettingsChange(InlayHintSettings),
1640 NewLinesShown,
1641 BufferEdited(HashSet<Arc<Language>>),
1642 RefreshRequested,
1643 ExcerptsRemoved(Vec<ExcerptId>),
1644}
1645
1646impl InlayHintRefreshReason {
1647 fn description(&self) -> &'static str {
1648 match self {
1649 Self::Toggle(_) => "toggle",
1650 Self::SettingsChange(_) => "settings change",
1651 Self::NewLinesShown => "new lines shown",
1652 Self::BufferEdited(_) => "buffer edited",
1653 Self::RefreshRequested => "refresh requested",
1654 Self::ExcerptsRemoved(_) => "excerpts removed",
1655 }
1656 }
1657}
1658
1659pub(crate) struct FocusedBlock {
1660 id: BlockId,
1661 focus_handle: WeakFocusHandle,
1662}
1663
1664impl Editor {
1665 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1666 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1667 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1668 Self::new(
1669 EditorMode::SingleLine { auto_width: false },
1670 buffer,
1671 None,
1672 false,
1673 cx,
1674 )
1675 }
1676
1677 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1678 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1679 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1680 Self::new(EditorMode::Full, buffer, None, false, cx)
1681 }
1682
1683 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1684 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1685 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1686 Self::new(
1687 EditorMode::SingleLine { auto_width: true },
1688 buffer,
1689 None,
1690 false,
1691 cx,
1692 )
1693 }
1694
1695 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1696 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1697 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1698 Self::new(
1699 EditorMode::AutoHeight { max_lines },
1700 buffer,
1701 None,
1702 false,
1703 cx,
1704 )
1705 }
1706
1707 pub fn for_buffer(
1708 buffer: Model<Buffer>,
1709 project: Option<Model<Project>>,
1710 cx: &mut ViewContext<Self>,
1711 ) -> Self {
1712 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1713 Self::new(EditorMode::Full, buffer, project, false, cx)
1714 }
1715
1716 pub fn for_multibuffer(
1717 buffer: Model<MultiBuffer>,
1718 project: Option<Model<Project>>,
1719 show_excerpt_controls: bool,
1720 cx: &mut ViewContext<Self>,
1721 ) -> Self {
1722 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1723 }
1724
1725 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1726 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1727 let mut clone = Self::new(
1728 self.mode,
1729 self.buffer.clone(),
1730 self.project.clone(),
1731 show_excerpt_controls,
1732 cx,
1733 );
1734 self.display_map.update(cx, |display_map, cx| {
1735 let snapshot = display_map.snapshot(cx);
1736 clone.display_map.update(cx, |display_map, cx| {
1737 display_map.set_state(&snapshot, cx);
1738 });
1739 });
1740 clone.selections.clone_state(&self.selections);
1741 clone.scroll_manager.clone_state(&self.scroll_manager);
1742 clone.searchable = self.searchable;
1743 clone
1744 }
1745
1746 pub fn new(
1747 mode: EditorMode,
1748 buffer: Model<MultiBuffer>,
1749 project: Option<Model<Project>>,
1750 show_excerpt_controls: bool,
1751 cx: &mut ViewContext<Self>,
1752 ) -> Self {
1753 let style = cx.text_style();
1754 let font_size = style.font_size.to_pixels(cx.rem_size());
1755 let editor = cx.view().downgrade();
1756 let fold_placeholder = FoldPlaceholder {
1757 constrain_width: true,
1758 render: Arc::new(move |fold_id, fold_range, cx| {
1759 let editor = editor.clone();
1760 div()
1761 .id(fold_id)
1762 .bg(cx.theme().colors().ghost_element_background)
1763 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1764 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1765 .rounded_sm()
1766 .size_full()
1767 .cursor_pointer()
1768 .child("⋯")
1769 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1770 .on_click(move |_, cx| {
1771 editor
1772 .update(cx, |editor, cx| {
1773 editor.unfold_ranges(
1774 [fold_range.start..fold_range.end],
1775 true,
1776 false,
1777 cx,
1778 );
1779 cx.stop_propagation();
1780 })
1781 .ok();
1782 })
1783 .into_any()
1784 }),
1785 merge_adjacent: true,
1786 };
1787 let file_header_size = if show_excerpt_controls { 3 } else { 2 };
1788 let display_map = cx.new_model(|cx| {
1789 DisplayMap::new(
1790 buffer.clone(),
1791 style.font(),
1792 font_size,
1793 None,
1794 show_excerpt_controls,
1795 file_header_size,
1796 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1797 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1798 fold_placeholder,
1799 cx,
1800 )
1801 });
1802
1803 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1804
1805 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1806
1807 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1808 .then(|| language_settings::SoftWrap::PreferLine);
1809
1810 let mut project_subscriptions = Vec::new();
1811 if mode == EditorMode::Full {
1812 if let Some(project) = project.as_ref() {
1813 if buffer.read(cx).is_singleton() {
1814 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1815 cx.emit(EditorEvent::TitleChanged);
1816 }));
1817 }
1818 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1819 if let project::Event::RefreshInlayHints = event {
1820 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1821 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1822 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1823 let focus_handle = editor.focus_handle(cx);
1824 if focus_handle.is_focused(cx) {
1825 let snapshot = buffer.read(cx).snapshot();
1826 for (range, snippet) in snippet_edits {
1827 let editor_range =
1828 language::range_from_lsp(*range).to_offset(&snapshot);
1829 editor
1830 .insert_snippet(&[editor_range], snippet.clone(), cx)
1831 .ok();
1832 }
1833 }
1834 }
1835 }
1836 }));
1837 let task_inventory = project.read(cx).task_inventory().clone();
1838 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1839 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1840 }));
1841 }
1842 }
1843
1844 let inlay_hint_settings = inlay_hint_settings(
1845 selections.newest_anchor().head(),
1846 &buffer.read(cx).snapshot(cx),
1847 cx,
1848 );
1849 let focus_handle = cx.focus_handle();
1850 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1851 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1852 .detach();
1853 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1854 .detach();
1855 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1856
1857 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1858 Some(false)
1859 } else {
1860 None
1861 };
1862
1863 let mut this = Self {
1864 focus_handle,
1865 show_cursor_when_unfocused: false,
1866 last_focused_descendant: None,
1867 buffer: buffer.clone(),
1868 display_map: display_map.clone(),
1869 selections,
1870 scroll_manager: ScrollManager::new(cx),
1871 columnar_selection_tail: None,
1872 add_selections_state: None,
1873 select_next_state: None,
1874 select_prev_state: None,
1875 selection_history: Default::default(),
1876 autoclose_regions: Default::default(),
1877 snippet_stack: Default::default(),
1878 select_larger_syntax_node_stack: Vec::new(),
1879 ime_transaction: Default::default(),
1880 active_diagnostics: None,
1881 soft_wrap_mode_override,
1882 completion_provider: project.clone().map(|project| Box::new(project) as _),
1883 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1884 project,
1885 blink_manager: blink_manager.clone(),
1886 show_local_selections: true,
1887 mode,
1888 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1889 show_gutter: mode == EditorMode::Full,
1890 show_line_numbers: None,
1891 use_relative_line_numbers: None,
1892 show_git_diff_gutter: None,
1893 show_code_actions: None,
1894 show_runnables: None,
1895 show_wrap_guides: None,
1896 show_indent_guides,
1897 placeholder_text: None,
1898 highlight_order: 0,
1899 highlighted_rows: HashMap::default(),
1900 background_highlights: Default::default(),
1901 gutter_highlights: TreeMap::default(),
1902 scrollbar_marker_state: ScrollbarMarkerState::default(),
1903 active_indent_guides_state: ActiveIndentGuidesState::default(),
1904 nav_history: None,
1905 context_menu: RwLock::new(None),
1906 mouse_context_menu: None,
1907 completion_tasks: Default::default(),
1908 signature_help_state: SignatureHelpState::default(),
1909 auto_signature_help: None,
1910 find_all_references_task_sources: Vec::new(),
1911 next_completion_id: 0,
1912 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1913 next_inlay_id: 0,
1914 available_code_actions: Default::default(),
1915 code_actions_task: Default::default(),
1916 document_highlights_task: Default::default(),
1917 linked_editing_range_task: Default::default(),
1918 pending_rename: Default::default(),
1919 searchable: true,
1920 cursor_shape: EditorSettings::get_global(cx)
1921 .cursor_shape
1922 .unwrap_or_default(),
1923 current_line_highlight: None,
1924 autoindent_mode: Some(AutoindentMode::EachLine),
1925 collapse_matches: false,
1926 workspace: None,
1927 input_enabled: true,
1928 use_modal_editing: mode == EditorMode::Full,
1929 read_only: false,
1930 use_autoclose: true,
1931 use_auto_surround: true,
1932 auto_replace_emoji_shortcode: false,
1933 leader_peer_id: None,
1934 remote_id: None,
1935 hover_state: Default::default(),
1936 hovered_link_state: Default::default(),
1937 inline_completion_provider: None,
1938 active_inline_completion: None,
1939 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1940 expanded_hunks: ExpandedHunks::default(),
1941 gutter_hovered: false,
1942 pixel_position_of_newest_cursor: None,
1943 last_bounds: None,
1944 expect_bounds_change: None,
1945 gutter_dimensions: GutterDimensions::default(),
1946 style: None,
1947 show_cursor_names: false,
1948 hovered_cursors: Default::default(),
1949 next_editor_action_id: EditorActionId::default(),
1950 editor_actions: Rc::default(),
1951 show_inline_completions_override: None,
1952 enable_inline_completions: true,
1953 custom_context_menu: None,
1954 show_git_blame_gutter: false,
1955 show_git_blame_inline: false,
1956 show_selection_menu: None,
1957 show_git_blame_inline_delay_task: None,
1958 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1959 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1960 .session
1961 .restore_unsaved_buffers,
1962 blame: None,
1963 blame_subscription: None,
1964 file_header_size,
1965 tasks: Default::default(),
1966 _subscriptions: vec![
1967 cx.observe(&buffer, Self::on_buffer_changed),
1968 cx.subscribe(&buffer, Self::on_buffer_event),
1969 cx.observe(&display_map, Self::on_display_map_changed),
1970 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1971 cx.observe_global::<SettingsStore>(Self::settings_changed),
1972 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1973 cx.observe_window_activation(|editor, cx| {
1974 let active = cx.is_window_active();
1975 editor.blink_manager.update(cx, |blink_manager, cx| {
1976 if active {
1977 blink_manager.enable(cx);
1978 } else {
1979 blink_manager.disable(cx);
1980 }
1981 });
1982 }),
1983 ],
1984 tasks_update_task: None,
1985 linked_edit_ranges: Default::default(),
1986 previous_search_ranges: None,
1987 breadcrumb_header: None,
1988 focused_block: None,
1989 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
1990 addons: HashMap::default(),
1991 _scroll_cursor_center_top_bottom_task: Task::ready(()),
1992 };
1993 this.tasks_update_task = Some(this.refresh_runnables(cx));
1994 this._subscriptions.extend(project_subscriptions);
1995
1996 this.end_selection(cx);
1997 this.scroll_manager.show_scrollbar(cx);
1998
1999 if mode == EditorMode::Full {
2000 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
2001 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
2002
2003 if this.git_blame_inline_enabled {
2004 this.git_blame_inline_enabled = true;
2005 this.start_git_blame_inline(false, cx);
2006 }
2007 }
2008
2009 this.report_editor_event("open", None, cx);
2010 this
2011 }
2012
2013 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
2014 self.mouse_context_menu
2015 .as_ref()
2016 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
2017 }
2018
2019 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
2020 let mut key_context = KeyContext::new_with_defaults();
2021 key_context.add("Editor");
2022 let mode = match self.mode {
2023 EditorMode::SingleLine { .. } => "single_line",
2024 EditorMode::AutoHeight { .. } => "auto_height",
2025 EditorMode::Full => "full",
2026 };
2027
2028 if EditorSettings::jupyter_enabled(cx) {
2029 key_context.add("jupyter");
2030 }
2031
2032 key_context.set("mode", mode);
2033 if self.pending_rename.is_some() {
2034 key_context.add("renaming");
2035 }
2036 if self.context_menu_visible() {
2037 match self.context_menu.read().as_ref() {
2038 Some(ContextMenu::Completions(_)) => {
2039 key_context.add("menu");
2040 key_context.add("showing_completions")
2041 }
2042 Some(ContextMenu::CodeActions(_)) => {
2043 key_context.add("menu");
2044 key_context.add("showing_code_actions")
2045 }
2046 None => {}
2047 }
2048 }
2049
2050 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2051 if !self.focus_handle(cx).contains_focused(cx)
2052 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2053 {
2054 for addon in self.addons.values() {
2055 addon.extend_key_context(&mut key_context, cx)
2056 }
2057 }
2058
2059 if let Some(extension) = self
2060 .buffer
2061 .read(cx)
2062 .as_singleton()
2063 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2064 {
2065 key_context.set("extension", extension.to_string());
2066 }
2067
2068 if self.has_active_inline_completion(cx) {
2069 key_context.add("copilot_suggestion");
2070 key_context.add("inline_completion");
2071 }
2072
2073 key_context
2074 }
2075
2076 pub fn new_file(
2077 workspace: &mut Workspace,
2078 _: &workspace::NewFile,
2079 cx: &mut ViewContext<Workspace>,
2080 ) {
2081 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2082 "Failed to create buffer",
2083 cx,
2084 |e, _| match e.error_code() {
2085 ErrorCode::RemoteUpgradeRequired => Some(format!(
2086 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2087 e.error_tag("required").unwrap_or("the latest version")
2088 )),
2089 _ => None,
2090 },
2091 );
2092 }
2093
2094 pub fn new_in_workspace(
2095 workspace: &mut Workspace,
2096 cx: &mut ViewContext<Workspace>,
2097 ) -> Task<Result<View<Editor>>> {
2098 let project = workspace.project().clone();
2099 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2100
2101 cx.spawn(|workspace, mut cx| async move {
2102 let buffer = create.await?;
2103 workspace.update(&mut cx, |workspace, cx| {
2104 let editor =
2105 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2106 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2107 editor
2108 })
2109 })
2110 }
2111
2112 fn new_file_vertical(
2113 workspace: &mut Workspace,
2114 _: &workspace::NewFileSplitVertical,
2115 cx: &mut ViewContext<Workspace>,
2116 ) {
2117 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2118 }
2119
2120 fn new_file_horizontal(
2121 workspace: &mut Workspace,
2122 _: &workspace::NewFileSplitHorizontal,
2123 cx: &mut ViewContext<Workspace>,
2124 ) {
2125 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2126 }
2127
2128 fn new_file_in_direction(
2129 workspace: &mut Workspace,
2130 direction: SplitDirection,
2131 cx: &mut ViewContext<Workspace>,
2132 ) {
2133 let project = workspace.project().clone();
2134 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2135
2136 cx.spawn(|workspace, mut cx| async move {
2137 let buffer = create.await?;
2138 workspace.update(&mut cx, move |workspace, cx| {
2139 workspace.split_item(
2140 direction,
2141 Box::new(
2142 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2143 ),
2144 cx,
2145 )
2146 })?;
2147 anyhow::Ok(())
2148 })
2149 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2150 ErrorCode::RemoteUpgradeRequired => Some(format!(
2151 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2152 e.error_tag("required").unwrap_or("the latest version")
2153 )),
2154 _ => None,
2155 });
2156 }
2157
2158 pub fn leader_peer_id(&self) -> Option<PeerId> {
2159 self.leader_peer_id
2160 }
2161
2162 pub fn buffer(&self) -> &Model<MultiBuffer> {
2163 &self.buffer
2164 }
2165
2166 pub fn workspace(&self) -> Option<View<Workspace>> {
2167 self.workspace.as_ref()?.0.upgrade()
2168 }
2169
2170 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2171 self.buffer().read(cx).title(cx)
2172 }
2173
2174 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2175 EditorSnapshot {
2176 mode: self.mode,
2177 show_gutter: self.show_gutter,
2178 show_line_numbers: self.show_line_numbers,
2179 show_git_diff_gutter: self.show_git_diff_gutter,
2180 show_code_actions: self.show_code_actions,
2181 show_runnables: self.show_runnables,
2182 render_git_blame_gutter: self.render_git_blame_gutter(cx),
2183 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2184 scroll_anchor: self.scroll_manager.anchor(),
2185 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2186 placeholder_text: self.placeholder_text.clone(),
2187 is_focused: self.focus_handle.is_focused(cx),
2188 current_line_highlight: self
2189 .current_line_highlight
2190 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2191 gutter_hovered: self.gutter_hovered,
2192 }
2193 }
2194
2195 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2196 self.buffer.read(cx).language_at(point, cx)
2197 }
2198
2199 pub fn file_at<T: ToOffset>(
2200 &self,
2201 point: T,
2202 cx: &AppContext,
2203 ) -> Option<Arc<dyn language::File>> {
2204 self.buffer.read(cx).read(cx).file_at(point).cloned()
2205 }
2206
2207 pub fn active_excerpt(
2208 &self,
2209 cx: &AppContext,
2210 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2211 self.buffer
2212 .read(cx)
2213 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2214 }
2215
2216 pub fn mode(&self) -> EditorMode {
2217 self.mode
2218 }
2219
2220 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2221 self.collaboration_hub.as_deref()
2222 }
2223
2224 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2225 self.collaboration_hub = Some(hub);
2226 }
2227
2228 pub fn set_custom_context_menu(
2229 &mut self,
2230 f: impl 'static
2231 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2232 ) {
2233 self.custom_context_menu = Some(Box::new(f))
2234 }
2235
2236 pub fn set_completion_provider(&mut self, provider: Box<dyn CompletionProvider>) {
2237 self.completion_provider = Some(provider);
2238 }
2239
2240 pub fn set_inline_completion_provider<T>(
2241 &mut self,
2242 provider: Option<Model<T>>,
2243 cx: &mut ViewContext<Self>,
2244 ) where
2245 T: InlineCompletionProvider,
2246 {
2247 self.inline_completion_provider =
2248 provider.map(|provider| RegisteredInlineCompletionProvider {
2249 _subscription: cx.observe(&provider, |this, _, cx| {
2250 if this.focus_handle.is_focused(cx) {
2251 this.update_visible_inline_completion(cx);
2252 }
2253 }),
2254 provider: Arc::new(provider),
2255 });
2256 self.refresh_inline_completion(false, false, cx);
2257 }
2258
2259 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2260 self.placeholder_text.as_deref()
2261 }
2262
2263 pub fn set_placeholder_text(
2264 &mut self,
2265 placeholder_text: impl Into<Arc<str>>,
2266 cx: &mut ViewContext<Self>,
2267 ) {
2268 let placeholder_text = Some(placeholder_text.into());
2269 if self.placeholder_text != placeholder_text {
2270 self.placeholder_text = placeholder_text;
2271 cx.notify();
2272 }
2273 }
2274
2275 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2276 self.cursor_shape = cursor_shape;
2277
2278 // Disrupt blink for immediate user feedback that the cursor shape has changed
2279 self.blink_manager.update(cx, BlinkManager::show_cursor);
2280
2281 cx.notify();
2282 }
2283
2284 pub fn set_current_line_highlight(
2285 &mut self,
2286 current_line_highlight: Option<CurrentLineHighlight>,
2287 ) {
2288 self.current_line_highlight = current_line_highlight;
2289 }
2290
2291 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2292 self.collapse_matches = collapse_matches;
2293 }
2294
2295 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2296 if self.collapse_matches {
2297 return range.start..range.start;
2298 }
2299 range.clone()
2300 }
2301
2302 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2303 if self.display_map.read(cx).clip_at_line_ends != clip {
2304 self.display_map
2305 .update(cx, |map, _| map.clip_at_line_ends = clip);
2306 }
2307 }
2308
2309 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2310 self.input_enabled = input_enabled;
2311 }
2312
2313 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2314 self.enable_inline_completions = enabled;
2315 }
2316
2317 pub fn set_autoindent(&mut self, autoindent: bool) {
2318 if autoindent {
2319 self.autoindent_mode = Some(AutoindentMode::EachLine);
2320 } else {
2321 self.autoindent_mode = None;
2322 }
2323 }
2324
2325 pub fn read_only(&self, cx: &AppContext) -> bool {
2326 self.read_only || self.buffer.read(cx).read_only()
2327 }
2328
2329 pub fn set_read_only(&mut self, read_only: bool) {
2330 self.read_only = read_only;
2331 }
2332
2333 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2334 self.use_autoclose = autoclose;
2335 }
2336
2337 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2338 self.use_auto_surround = auto_surround;
2339 }
2340
2341 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2342 self.auto_replace_emoji_shortcode = auto_replace;
2343 }
2344
2345 pub fn toggle_inline_completions(
2346 &mut self,
2347 _: &ToggleInlineCompletions,
2348 cx: &mut ViewContext<Self>,
2349 ) {
2350 if self.show_inline_completions_override.is_some() {
2351 self.set_show_inline_completions(None, cx);
2352 } else {
2353 let cursor = self.selections.newest_anchor().head();
2354 if let Some((buffer, cursor_buffer_position)) =
2355 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2356 {
2357 let show_inline_completions =
2358 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2359 self.set_show_inline_completions(Some(show_inline_completions), cx);
2360 }
2361 }
2362 }
2363
2364 pub fn set_show_inline_completions(
2365 &mut self,
2366 show_inline_completions: Option<bool>,
2367 cx: &mut ViewContext<Self>,
2368 ) {
2369 self.show_inline_completions_override = show_inline_completions;
2370 self.refresh_inline_completion(false, true, cx);
2371 }
2372
2373 fn should_show_inline_completions(
2374 &self,
2375 buffer: &Model<Buffer>,
2376 buffer_position: language::Anchor,
2377 cx: &AppContext,
2378 ) -> bool {
2379 if let Some(provider) = self.inline_completion_provider() {
2380 if let Some(show_inline_completions) = self.show_inline_completions_override {
2381 show_inline_completions
2382 } else {
2383 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2384 }
2385 } else {
2386 false
2387 }
2388 }
2389
2390 pub fn set_use_modal_editing(&mut self, to: bool) {
2391 self.use_modal_editing = to;
2392 }
2393
2394 pub fn use_modal_editing(&self) -> bool {
2395 self.use_modal_editing
2396 }
2397
2398 fn selections_did_change(
2399 &mut self,
2400 local: bool,
2401 old_cursor_position: &Anchor,
2402 show_completions: bool,
2403 cx: &mut ViewContext<Self>,
2404 ) {
2405 cx.invalidate_character_coordinates();
2406
2407 // Copy selections to primary selection buffer
2408 #[cfg(target_os = "linux")]
2409 if local {
2410 let selections = self.selections.all::<usize>(cx);
2411 let buffer_handle = self.buffer.read(cx).read(cx);
2412
2413 let mut text = String::new();
2414 for (index, selection) in selections.iter().enumerate() {
2415 let text_for_selection = buffer_handle
2416 .text_for_range(selection.start..selection.end)
2417 .collect::<String>();
2418
2419 text.push_str(&text_for_selection);
2420 if index != selections.len() - 1 {
2421 text.push('\n');
2422 }
2423 }
2424
2425 if !text.is_empty() {
2426 cx.write_to_primary(ClipboardItem::new_string(text));
2427 }
2428 }
2429
2430 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2431 self.buffer.update(cx, |buffer, cx| {
2432 buffer.set_active_selections(
2433 &self.selections.disjoint_anchors(),
2434 self.selections.line_mode,
2435 self.cursor_shape,
2436 cx,
2437 )
2438 });
2439 }
2440 let display_map = self
2441 .display_map
2442 .update(cx, |display_map, cx| display_map.snapshot(cx));
2443 let buffer = &display_map.buffer_snapshot;
2444 self.add_selections_state = None;
2445 self.select_next_state = None;
2446 self.select_prev_state = None;
2447 self.select_larger_syntax_node_stack.clear();
2448 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2449 self.snippet_stack
2450 .invalidate(&self.selections.disjoint_anchors(), buffer);
2451 self.take_rename(false, cx);
2452
2453 let new_cursor_position = self.selections.newest_anchor().head();
2454
2455 self.push_to_nav_history(
2456 *old_cursor_position,
2457 Some(new_cursor_position.to_point(buffer)),
2458 cx,
2459 );
2460
2461 if local {
2462 let new_cursor_position = self.selections.newest_anchor().head();
2463 let mut context_menu = self.context_menu.write();
2464 let completion_menu = match context_menu.as_ref() {
2465 Some(ContextMenu::Completions(menu)) => Some(menu),
2466
2467 _ => {
2468 *context_menu = None;
2469 None
2470 }
2471 };
2472
2473 if let Some(completion_menu) = completion_menu {
2474 let cursor_position = new_cursor_position.to_offset(buffer);
2475 let (word_range, kind) =
2476 buffer.surrounding_word(completion_menu.initial_position, true);
2477 if kind == Some(CharKind::Word)
2478 && word_range.to_inclusive().contains(&cursor_position)
2479 {
2480 let mut completion_menu = completion_menu.clone();
2481 drop(context_menu);
2482
2483 let query = Self::completion_query(buffer, cursor_position);
2484 cx.spawn(move |this, mut cx| async move {
2485 completion_menu
2486 .filter(query.as_deref(), cx.background_executor().clone())
2487 .await;
2488
2489 this.update(&mut cx, |this, cx| {
2490 let mut context_menu = this.context_menu.write();
2491 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2492 return;
2493 };
2494
2495 if menu.id > completion_menu.id {
2496 return;
2497 }
2498
2499 *context_menu = Some(ContextMenu::Completions(completion_menu));
2500 drop(context_menu);
2501 cx.notify();
2502 })
2503 })
2504 .detach();
2505
2506 if show_completions {
2507 self.show_completions(&ShowCompletions { trigger: None }, cx);
2508 }
2509 } else {
2510 drop(context_menu);
2511 self.hide_context_menu(cx);
2512 }
2513 } else {
2514 drop(context_menu);
2515 }
2516
2517 hide_hover(self, cx);
2518
2519 if old_cursor_position.to_display_point(&display_map).row()
2520 != new_cursor_position.to_display_point(&display_map).row()
2521 {
2522 self.available_code_actions.take();
2523 }
2524 self.refresh_code_actions(cx);
2525 self.refresh_document_highlights(cx);
2526 refresh_matching_bracket_highlights(self, cx);
2527 self.discard_inline_completion(false, cx);
2528 linked_editing_ranges::refresh_linked_ranges(self, cx);
2529 if self.git_blame_inline_enabled {
2530 self.start_inline_blame_timer(cx);
2531 }
2532 }
2533
2534 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2535 cx.emit(EditorEvent::SelectionsChanged { local });
2536
2537 if self.selections.disjoint_anchors().len() == 1 {
2538 cx.emit(SearchEvent::ActiveMatchChanged)
2539 }
2540 cx.notify();
2541 }
2542
2543 pub fn change_selections<R>(
2544 &mut self,
2545 autoscroll: Option<Autoscroll>,
2546 cx: &mut ViewContext<Self>,
2547 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2548 ) -> R {
2549 self.change_selections_inner(autoscroll, true, cx, change)
2550 }
2551
2552 pub fn change_selections_inner<R>(
2553 &mut self,
2554 autoscroll: Option<Autoscroll>,
2555 request_completions: bool,
2556 cx: &mut ViewContext<Self>,
2557 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2558 ) -> R {
2559 let old_cursor_position = self.selections.newest_anchor().head();
2560 self.push_to_selection_history();
2561
2562 let (changed, result) = self.selections.change_with(cx, change);
2563
2564 if changed {
2565 if let Some(autoscroll) = autoscroll {
2566 self.request_autoscroll(autoscroll, cx);
2567 }
2568 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2569
2570 if self.should_open_signature_help_automatically(
2571 &old_cursor_position,
2572 self.signature_help_state.backspace_pressed(),
2573 cx,
2574 ) {
2575 self.show_signature_help(&ShowSignatureHelp, cx);
2576 }
2577 self.signature_help_state.set_backspace_pressed(false);
2578 }
2579
2580 result
2581 }
2582
2583 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2584 where
2585 I: IntoIterator<Item = (Range<S>, T)>,
2586 S: ToOffset,
2587 T: Into<Arc<str>>,
2588 {
2589 if self.read_only(cx) {
2590 return;
2591 }
2592
2593 self.buffer
2594 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2595 }
2596
2597 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2598 where
2599 I: IntoIterator<Item = (Range<S>, T)>,
2600 S: ToOffset,
2601 T: Into<Arc<str>>,
2602 {
2603 if self.read_only(cx) {
2604 return;
2605 }
2606
2607 self.buffer.update(cx, |buffer, cx| {
2608 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2609 });
2610 }
2611
2612 pub fn edit_with_block_indent<I, S, T>(
2613 &mut self,
2614 edits: I,
2615 original_indent_columns: Vec<u32>,
2616 cx: &mut ViewContext<Self>,
2617 ) where
2618 I: IntoIterator<Item = (Range<S>, T)>,
2619 S: ToOffset,
2620 T: Into<Arc<str>>,
2621 {
2622 if self.read_only(cx) {
2623 return;
2624 }
2625
2626 self.buffer.update(cx, |buffer, cx| {
2627 buffer.edit(
2628 edits,
2629 Some(AutoindentMode::Block {
2630 original_indent_columns,
2631 }),
2632 cx,
2633 )
2634 });
2635 }
2636
2637 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2638 self.hide_context_menu(cx);
2639
2640 match phase {
2641 SelectPhase::Begin {
2642 position,
2643 add,
2644 click_count,
2645 } => self.begin_selection(position, add, click_count, cx),
2646 SelectPhase::BeginColumnar {
2647 position,
2648 goal_column,
2649 reset,
2650 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2651 SelectPhase::Extend {
2652 position,
2653 click_count,
2654 } => self.extend_selection(position, click_count, cx),
2655 SelectPhase::Update {
2656 position,
2657 goal_column,
2658 scroll_delta,
2659 } => self.update_selection(position, goal_column, scroll_delta, cx),
2660 SelectPhase::End => self.end_selection(cx),
2661 }
2662 }
2663
2664 fn extend_selection(
2665 &mut self,
2666 position: DisplayPoint,
2667 click_count: usize,
2668 cx: &mut ViewContext<Self>,
2669 ) {
2670 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2671 let tail = self.selections.newest::<usize>(cx).tail();
2672 self.begin_selection(position, false, click_count, cx);
2673
2674 let position = position.to_offset(&display_map, Bias::Left);
2675 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2676
2677 let mut pending_selection = self
2678 .selections
2679 .pending_anchor()
2680 .expect("extend_selection not called with pending selection");
2681 if position >= tail {
2682 pending_selection.start = tail_anchor;
2683 } else {
2684 pending_selection.end = tail_anchor;
2685 pending_selection.reversed = true;
2686 }
2687
2688 let mut pending_mode = self.selections.pending_mode().unwrap();
2689 match &mut pending_mode {
2690 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2691 _ => {}
2692 }
2693
2694 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2695 s.set_pending(pending_selection, pending_mode)
2696 });
2697 }
2698
2699 fn begin_selection(
2700 &mut self,
2701 position: DisplayPoint,
2702 add: bool,
2703 click_count: usize,
2704 cx: &mut ViewContext<Self>,
2705 ) {
2706 if !self.focus_handle.is_focused(cx) {
2707 self.last_focused_descendant = None;
2708 cx.focus(&self.focus_handle);
2709 }
2710
2711 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2712 let buffer = &display_map.buffer_snapshot;
2713 let newest_selection = self.selections.newest_anchor().clone();
2714 let position = display_map.clip_point(position, Bias::Left);
2715
2716 let start;
2717 let end;
2718 let mode;
2719 let auto_scroll;
2720 match click_count {
2721 1 => {
2722 start = buffer.anchor_before(position.to_point(&display_map));
2723 end = start;
2724 mode = SelectMode::Character;
2725 auto_scroll = true;
2726 }
2727 2 => {
2728 let range = movement::surrounding_word(&display_map, position);
2729 start = buffer.anchor_before(range.start.to_point(&display_map));
2730 end = buffer.anchor_before(range.end.to_point(&display_map));
2731 mode = SelectMode::Word(start..end);
2732 auto_scroll = true;
2733 }
2734 3 => {
2735 let position = display_map
2736 .clip_point(position, Bias::Left)
2737 .to_point(&display_map);
2738 let line_start = display_map.prev_line_boundary(position).0;
2739 let next_line_start = buffer.clip_point(
2740 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2741 Bias::Left,
2742 );
2743 start = buffer.anchor_before(line_start);
2744 end = buffer.anchor_before(next_line_start);
2745 mode = SelectMode::Line(start..end);
2746 auto_scroll = true;
2747 }
2748 _ => {
2749 start = buffer.anchor_before(0);
2750 end = buffer.anchor_before(buffer.len());
2751 mode = SelectMode::All;
2752 auto_scroll = false;
2753 }
2754 }
2755
2756 let point_to_delete: Option<usize> = {
2757 let selected_points: Vec<Selection<Point>> =
2758 self.selections.disjoint_in_range(start..end, cx);
2759
2760 if !add || click_count > 1 {
2761 None
2762 } else if !selected_points.is_empty() {
2763 Some(selected_points[0].id)
2764 } else {
2765 let clicked_point_already_selected =
2766 self.selections.disjoint.iter().find(|selection| {
2767 selection.start.to_point(buffer) == start.to_point(buffer)
2768 || selection.end.to_point(buffer) == end.to_point(buffer)
2769 });
2770
2771 clicked_point_already_selected.map(|selection| selection.id)
2772 }
2773 };
2774
2775 let selections_count = self.selections.count();
2776
2777 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2778 if let Some(point_to_delete) = point_to_delete {
2779 s.delete(point_to_delete);
2780
2781 if selections_count == 1 {
2782 s.set_pending_anchor_range(start..end, mode);
2783 }
2784 } else {
2785 if !add {
2786 s.clear_disjoint();
2787 } else if click_count > 1 {
2788 s.delete(newest_selection.id)
2789 }
2790
2791 s.set_pending_anchor_range(start..end, mode);
2792 }
2793 });
2794 }
2795
2796 fn begin_columnar_selection(
2797 &mut self,
2798 position: DisplayPoint,
2799 goal_column: u32,
2800 reset: bool,
2801 cx: &mut ViewContext<Self>,
2802 ) {
2803 if !self.focus_handle.is_focused(cx) {
2804 self.last_focused_descendant = None;
2805 cx.focus(&self.focus_handle);
2806 }
2807
2808 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2809
2810 if reset {
2811 let pointer_position = display_map
2812 .buffer_snapshot
2813 .anchor_before(position.to_point(&display_map));
2814
2815 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2816 s.clear_disjoint();
2817 s.set_pending_anchor_range(
2818 pointer_position..pointer_position,
2819 SelectMode::Character,
2820 );
2821 });
2822 }
2823
2824 let tail = self.selections.newest::<Point>(cx).tail();
2825 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2826
2827 if !reset {
2828 self.select_columns(
2829 tail.to_display_point(&display_map),
2830 position,
2831 goal_column,
2832 &display_map,
2833 cx,
2834 );
2835 }
2836 }
2837
2838 fn update_selection(
2839 &mut self,
2840 position: DisplayPoint,
2841 goal_column: u32,
2842 scroll_delta: gpui::Point<f32>,
2843 cx: &mut ViewContext<Self>,
2844 ) {
2845 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2846
2847 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2848 let tail = tail.to_display_point(&display_map);
2849 self.select_columns(tail, position, goal_column, &display_map, cx);
2850 } else if let Some(mut pending) = self.selections.pending_anchor() {
2851 let buffer = self.buffer.read(cx).snapshot(cx);
2852 let head;
2853 let tail;
2854 let mode = self.selections.pending_mode().unwrap();
2855 match &mode {
2856 SelectMode::Character => {
2857 head = position.to_point(&display_map);
2858 tail = pending.tail().to_point(&buffer);
2859 }
2860 SelectMode::Word(original_range) => {
2861 let original_display_range = original_range.start.to_display_point(&display_map)
2862 ..original_range.end.to_display_point(&display_map);
2863 let original_buffer_range = original_display_range.start.to_point(&display_map)
2864 ..original_display_range.end.to_point(&display_map);
2865 if movement::is_inside_word(&display_map, position)
2866 || original_display_range.contains(&position)
2867 {
2868 let word_range = movement::surrounding_word(&display_map, position);
2869 if word_range.start < original_display_range.start {
2870 head = word_range.start.to_point(&display_map);
2871 } else {
2872 head = word_range.end.to_point(&display_map);
2873 }
2874 } else {
2875 head = position.to_point(&display_map);
2876 }
2877
2878 if head <= original_buffer_range.start {
2879 tail = original_buffer_range.end;
2880 } else {
2881 tail = original_buffer_range.start;
2882 }
2883 }
2884 SelectMode::Line(original_range) => {
2885 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2886
2887 let position = display_map
2888 .clip_point(position, Bias::Left)
2889 .to_point(&display_map);
2890 let line_start = display_map.prev_line_boundary(position).0;
2891 let next_line_start = buffer.clip_point(
2892 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2893 Bias::Left,
2894 );
2895
2896 if line_start < original_range.start {
2897 head = line_start
2898 } else {
2899 head = next_line_start
2900 }
2901
2902 if head <= original_range.start {
2903 tail = original_range.end;
2904 } else {
2905 tail = original_range.start;
2906 }
2907 }
2908 SelectMode::All => {
2909 return;
2910 }
2911 };
2912
2913 if head < tail {
2914 pending.start = buffer.anchor_before(head);
2915 pending.end = buffer.anchor_before(tail);
2916 pending.reversed = true;
2917 } else {
2918 pending.start = buffer.anchor_before(tail);
2919 pending.end = buffer.anchor_before(head);
2920 pending.reversed = false;
2921 }
2922
2923 self.change_selections(None, cx, |s| {
2924 s.set_pending(pending, mode);
2925 });
2926 } else {
2927 log::error!("update_selection dispatched with no pending selection");
2928 return;
2929 }
2930
2931 self.apply_scroll_delta(scroll_delta, cx);
2932 cx.notify();
2933 }
2934
2935 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2936 self.columnar_selection_tail.take();
2937 if self.selections.pending_anchor().is_some() {
2938 let selections = self.selections.all::<usize>(cx);
2939 self.change_selections(None, cx, |s| {
2940 s.select(selections);
2941 s.clear_pending();
2942 });
2943 }
2944 }
2945
2946 fn select_columns(
2947 &mut self,
2948 tail: DisplayPoint,
2949 head: DisplayPoint,
2950 goal_column: u32,
2951 display_map: &DisplaySnapshot,
2952 cx: &mut ViewContext<Self>,
2953 ) {
2954 let start_row = cmp::min(tail.row(), head.row());
2955 let end_row = cmp::max(tail.row(), head.row());
2956 let start_column = cmp::min(tail.column(), goal_column);
2957 let end_column = cmp::max(tail.column(), goal_column);
2958 let reversed = start_column < tail.column();
2959
2960 let selection_ranges = (start_row.0..=end_row.0)
2961 .map(DisplayRow)
2962 .filter_map(|row| {
2963 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2964 let start = display_map
2965 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2966 .to_point(display_map);
2967 let end = display_map
2968 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2969 .to_point(display_map);
2970 if reversed {
2971 Some(end..start)
2972 } else {
2973 Some(start..end)
2974 }
2975 } else {
2976 None
2977 }
2978 })
2979 .collect::<Vec<_>>();
2980
2981 self.change_selections(None, cx, |s| {
2982 s.select_ranges(selection_ranges);
2983 });
2984 cx.notify();
2985 }
2986
2987 pub fn has_pending_nonempty_selection(&self) -> bool {
2988 let pending_nonempty_selection = match self.selections.pending_anchor() {
2989 Some(Selection { start, end, .. }) => start != end,
2990 None => false,
2991 };
2992
2993 pending_nonempty_selection
2994 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2995 }
2996
2997 pub fn has_pending_selection(&self) -> bool {
2998 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2999 }
3000
3001 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
3002 if self.clear_clicked_diff_hunks(cx) {
3003 cx.notify();
3004 return;
3005 }
3006 if self.dismiss_menus_and_popups(true, cx) {
3007 return;
3008 }
3009
3010 if self.mode == EditorMode::Full
3011 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3012 {
3013 return;
3014 }
3015
3016 cx.propagate();
3017 }
3018
3019 pub fn dismiss_menus_and_popups(
3020 &mut self,
3021 should_report_inline_completion_event: bool,
3022 cx: &mut ViewContext<Self>,
3023 ) -> bool {
3024 if self.take_rename(false, cx).is_some() {
3025 return true;
3026 }
3027
3028 if hide_hover(self, cx) {
3029 return true;
3030 }
3031
3032 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3033 return true;
3034 }
3035
3036 if self.hide_context_menu(cx).is_some() {
3037 return true;
3038 }
3039
3040 if self.mouse_context_menu.take().is_some() {
3041 return true;
3042 }
3043
3044 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3045 return true;
3046 }
3047
3048 if self.snippet_stack.pop().is_some() {
3049 return true;
3050 }
3051
3052 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3053 self.dismiss_diagnostics(cx);
3054 return true;
3055 }
3056
3057 false
3058 }
3059
3060 fn linked_editing_ranges_for(
3061 &self,
3062 selection: Range<text::Anchor>,
3063 cx: &AppContext,
3064 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3065 if self.linked_edit_ranges.is_empty() {
3066 return None;
3067 }
3068 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3069 selection.end.buffer_id.and_then(|end_buffer_id| {
3070 if selection.start.buffer_id != Some(end_buffer_id) {
3071 return None;
3072 }
3073 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3074 let snapshot = buffer.read(cx).snapshot();
3075 self.linked_edit_ranges
3076 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3077 .map(|ranges| (ranges, snapshot, buffer))
3078 })?;
3079 use text::ToOffset as TO;
3080 // find offset from the start of current range to current cursor position
3081 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3082
3083 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3084 let start_difference = start_offset - start_byte_offset;
3085 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3086 let end_difference = end_offset - start_byte_offset;
3087 // Current range has associated linked ranges.
3088 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3089 for range in linked_ranges.iter() {
3090 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3091 let end_offset = start_offset + end_difference;
3092 let start_offset = start_offset + start_difference;
3093 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3094 continue;
3095 }
3096 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3097 if s.start.buffer_id != selection.start.buffer_id
3098 || s.end.buffer_id != selection.end.buffer_id
3099 {
3100 return false;
3101 }
3102 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3103 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3104 }) {
3105 continue;
3106 }
3107 let start = buffer_snapshot.anchor_after(start_offset);
3108 let end = buffer_snapshot.anchor_after(end_offset);
3109 linked_edits
3110 .entry(buffer.clone())
3111 .or_default()
3112 .push(start..end);
3113 }
3114 Some(linked_edits)
3115 }
3116
3117 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3118 let text: Arc<str> = text.into();
3119
3120 if self.read_only(cx) {
3121 return;
3122 }
3123
3124 let selections = self.selections.all_adjusted(cx);
3125 let mut bracket_inserted = false;
3126 let mut edits = Vec::new();
3127 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3128 let mut new_selections = Vec::with_capacity(selections.len());
3129 let mut new_autoclose_regions = Vec::new();
3130 let snapshot = self.buffer.read(cx).read(cx);
3131
3132 for (selection, autoclose_region) in
3133 self.selections_with_autoclose_regions(selections, &snapshot)
3134 {
3135 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3136 // Determine if the inserted text matches the opening or closing
3137 // bracket of any of this language's bracket pairs.
3138 let mut bracket_pair = None;
3139 let mut is_bracket_pair_start = false;
3140 let mut is_bracket_pair_end = false;
3141 if !text.is_empty() {
3142 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3143 // and they are removing the character that triggered IME popup.
3144 for (pair, enabled) in scope.brackets() {
3145 if !pair.close && !pair.surround {
3146 continue;
3147 }
3148
3149 if enabled && pair.start.ends_with(text.as_ref()) {
3150 bracket_pair = Some(pair.clone());
3151 is_bracket_pair_start = true;
3152 break;
3153 }
3154 if pair.end.as_str() == text.as_ref() {
3155 bracket_pair = Some(pair.clone());
3156 is_bracket_pair_end = true;
3157 break;
3158 }
3159 }
3160 }
3161
3162 if let Some(bracket_pair) = bracket_pair {
3163 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3164 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3165 let auto_surround =
3166 self.use_auto_surround && snapshot_settings.use_auto_surround;
3167 if selection.is_empty() {
3168 if is_bracket_pair_start {
3169 let prefix_len = bracket_pair.start.len() - text.len();
3170
3171 // If the inserted text is a suffix of an opening bracket and the
3172 // selection is preceded by the rest of the opening bracket, then
3173 // insert the closing bracket.
3174 let following_text_allows_autoclose = snapshot
3175 .chars_at(selection.start)
3176 .next()
3177 .map_or(true, |c| scope.should_autoclose_before(c));
3178 let preceding_text_matches_prefix = prefix_len == 0
3179 || (selection.start.column >= (prefix_len as u32)
3180 && snapshot.contains_str_at(
3181 Point::new(
3182 selection.start.row,
3183 selection.start.column - (prefix_len as u32),
3184 ),
3185 &bracket_pair.start[..prefix_len],
3186 ));
3187
3188 if autoclose
3189 && bracket_pair.close
3190 && following_text_allows_autoclose
3191 && preceding_text_matches_prefix
3192 {
3193 let anchor = snapshot.anchor_before(selection.end);
3194 new_selections.push((selection.map(|_| anchor), text.len()));
3195 new_autoclose_regions.push((
3196 anchor,
3197 text.len(),
3198 selection.id,
3199 bracket_pair.clone(),
3200 ));
3201 edits.push((
3202 selection.range(),
3203 format!("{}{}", text, bracket_pair.end).into(),
3204 ));
3205 bracket_inserted = true;
3206 continue;
3207 }
3208 }
3209
3210 if let Some(region) = autoclose_region {
3211 // If the selection is followed by an auto-inserted closing bracket,
3212 // then don't insert that closing bracket again; just move the selection
3213 // past the closing bracket.
3214 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3215 && text.as_ref() == region.pair.end.as_str();
3216 if should_skip {
3217 let anchor = snapshot.anchor_after(selection.end);
3218 new_selections
3219 .push((selection.map(|_| anchor), region.pair.end.len()));
3220 continue;
3221 }
3222 }
3223
3224 let always_treat_brackets_as_autoclosed = snapshot
3225 .settings_at(selection.start, cx)
3226 .always_treat_brackets_as_autoclosed;
3227 if always_treat_brackets_as_autoclosed
3228 && is_bracket_pair_end
3229 && snapshot.contains_str_at(selection.end, text.as_ref())
3230 {
3231 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3232 // and the inserted text is a closing bracket and the selection is followed
3233 // by the closing bracket then move the selection past the closing bracket.
3234 let anchor = snapshot.anchor_after(selection.end);
3235 new_selections.push((selection.map(|_| anchor), text.len()));
3236 continue;
3237 }
3238 }
3239 // If an opening bracket is 1 character long and is typed while
3240 // text is selected, then surround that text with the bracket pair.
3241 else if auto_surround
3242 && bracket_pair.surround
3243 && is_bracket_pair_start
3244 && bracket_pair.start.chars().count() == 1
3245 {
3246 edits.push((selection.start..selection.start, text.clone()));
3247 edits.push((
3248 selection.end..selection.end,
3249 bracket_pair.end.as_str().into(),
3250 ));
3251 bracket_inserted = true;
3252 new_selections.push((
3253 Selection {
3254 id: selection.id,
3255 start: snapshot.anchor_after(selection.start),
3256 end: snapshot.anchor_before(selection.end),
3257 reversed: selection.reversed,
3258 goal: selection.goal,
3259 },
3260 0,
3261 ));
3262 continue;
3263 }
3264 }
3265 }
3266
3267 if self.auto_replace_emoji_shortcode
3268 && selection.is_empty()
3269 && text.as_ref().ends_with(':')
3270 {
3271 if let Some(possible_emoji_short_code) =
3272 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3273 {
3274 if !possible_emoji_short_code.is_empty() {
3275 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3276 let emoji_shortcode_start = Point::new(
3277 selection.start.row,
3278 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3279 );
3280
3281 // Remove shortcode from buffer
3282 edits.push((
3283 emoji_shortcode_start..selection.start,
3284 "".to_string().into(),
3285 ));
3286 new_selections.push((
3287 Selection {
3288 id: selection.id,
3289 start: snapshot.anchor_after(emoji_shortcode_start),
3290 end: snapshot.anchor_before(selection.start),
3291 reversed: selection.reversed,
3292 goal: selection.goal,
3293 },
3294 0,
3295 ));
3296
3297 // Insert emoji
3298 let selection_start_anchor = snapshot.anchor_after(selection.start);
3299 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3300 edits.push((selection.start..selection.end, emoji.to_string().into()));
3301
3302 continue;
3303 }
3304 }
3305 }
3306 }
3307
3308 // If not handling any auto-close operation, then just replace the selected
3309 // text with the given input and move the selection to the end of the
3310 // newly inserted text.
3311 let anchor = snapshot.anchor_after(selection.end);
3312 if !self.linked_edit_ranges.is_empty() {
3313 let start_anchor = snapshot.anchor_before(selection.start);
3314
3315 let is_word_char = text.chars().next().map_or(true, |char| {
3316 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3317 classifier.is_word(char)
3318 });
3319
3320 if is_word_char {
3321 if let Some(ranges) = self
3322 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3323 {
3324 for (buffer, edits) in ranges {
3325 linked_edits
3326 .entry(buffer.clone())
3327 .or_default()
3328 .extend(edits.into_iter().map(|range| (range, text.clone())));
3329 }
3330 }
3331 }
3332 }
3333
3334 new_selections.push((selection.map(|_| anchor), 0));
3335 edits.push((selection.start..selection.end, text.clone()));
3336 }
3337
3338 drop(snapshot);
3339
3340 self.transact(cx, |this, cx| {
3341 this.buffer.update(cx, |buffer, cx| {
3342 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3343 });
3344 for (buffer, edits) in linked_edits {
3345 buffer.update(cx, |buffer, cx| {
3346 let snapshot = buffer.snapshot();
3347 let edits = edits
3348 .into_iter()
3349 .map(|(range, text)| {
3350 use text::ToPoint as TP;
3351 let end_point = TP::to_point(&range.end, &snapshot);
3352 let start_point = TP::to_point(&range.start, &snapshot);
3353 (start_point..end_point, text)
3354 })
3355 .sorted_by_key(|(range, _)| range.start)
3356 .collect::<Vec<_>>();
3357 buffer.edit(edits, None, cx);
3358 })
3359 }
3360 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3361 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3362 let snapshot = this.buffer.read(cx).read(cx);
3363 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
3364 .zip(new_selection_deltas)
3365 .map(|(selection, delta)| Selection {
3366 id: selection.id,
3367 start: selection.start + delta,
3368 end: selection.end + delta,
3369 reversed: selection.reversed,
3370 goal: SelectionGoal::None,
3371 })
3372 .collect::<Vec<_>>();
3373
3374 let mut i = 0;
3375 for (position, delta, selection_id, pair) in new_autoclose_regions {
3376 let position = position.to_offset(&snapshot) + delta;
3377 let start = snapshot.anchor_before(position);
3378 let end = snapshot.anchor_after(position);
3379 while let Some(existing_state) = this.autoclose_regions.get(i) {
3380 match existing_state.range.start.cmp(&start, &snapshot) {
3381 Ordering::Less => i += 1,
3382 Ordering::Greater => break,
3383 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
3384 Ordering::Less => i += 1,
3385 Ordering::Equal => break,
3386 Ordering::Greater => break,
3387 },
3388 }
3389 }
3390 this.autoclose_regions.insert(
3391 i,
3392 AutocloseRegion {
3393 selection_id,
3394 range: start..end,
3395 pair,
3396 },
3397 );
3398 }
3399
3400 drop(snapshot);
3401 let had_active_inline_completion = this.has_active_inline_completion(cx);
3402 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3403 s.select(new_selections)
3404 });
3405
3406 if !bracket_inserted && EditorSettings::get_global(cx).use_on_type_format {
3407 if let Some(on_type_format_task) =
3408 this.trigger_on_type_formatting(text.to_string(), cx)
3409 {
3410 on_type_format_task.detach_and_log_err(cx);
3411 }
3412 }
3413
3414 let editor_settings = EditorSettings::get_global(cx);
3415 if bracket_inserted
3416 && (editor_settings.auto_signature_help
3417 || editor_settings.show_signature_help_after_edits)
3418 {
3419 this.show_signature_help(&ShowSignatureHelp, cx);
3420 }
3421
3422 let trigger_in_words = !had_active_inline_completion;
3423 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3424 linked_editing_ranges::refresh_linked_ranges(this, cx);
3425 this.refresh_inline_completion(true, false, cx);
3426 });
3427 }
3428
3429 fn find_possible_emoji_shortcode_at_position(
3430 snapshot: &MultiBufferSnapshot,
3431 position: Point,
3432 ) -> Option<String> {
3433 let mut chars = Vec::new();
3434 let mut found_colon = false;
3435 for char in snapshot.reversed_chars_at(position).take(100) {
3436 // Found a possible emoji shortcode in the middle of the buffer
3437 if found_colon {
3438 if char.is_whitespace() {
3439 chars.reverse();
3440 return Some(chars.iter().collect());
3441 }
3442 // If the previous character is not a whitespace, we are in the middle of a word
3443 // and we only want to complete the shortcode if the word is made up of other emojis
3444 let mut containing_word = String::new();
3445 for ch in snapshot
3446 .reversed_chars_at(position)
3447 .skip(chars.len() + 1)
3448 .take(100)
3449 {
3450 if ch.is_whitespace() {
3451 break;
3452 }
3453 containing_word.push(ch);
3454 }
3455 let containing_word = containing_word.chars().rev().collect::<String>();
3456 if util::word_consists_of_emojis(containing_word.as_str()) {
3457 chars.reverse();
3458 return Some(chars.iter().collect());
3459 }
3460 }
3461
3462 if char.is_whitespace() || !char.is_ascii() {
3463 return None;
3464 }
3465 if char == ':' {
3466 found_colon = true;
3467 } else {
3468 chars.push(char);
3469 }
3470 }
3471 // Found a possible emoji shortcode at the beginning of the buffer
3472 chars.reverse();
3473 Some(chars.iter().collect())
3474 }
3475
3476 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3477 self.transact(cx, |this, cx| {
3478 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3479 let selections = this.selections.all::<usize>(cx);
3480 let multi_buffer = this.buffer.read(cx);
3481 let buffer = multi_buffer.snapshot(cx);
3482 selections
3483 .iter()
3484 .map(|selection| {
3485 let start_point = selection.start.to_point(&buffer);
3486 let mut indent =
3487 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3488 indent.len = cmp::min(indent.len, start_point.column);
3489 let start = selection.start;
3490 let end = selection.end;
3491 let selection_is_empty = start == end;
3492 let language_scope = buffer.language_scope_at(start);
3493 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3494 &language_scope
3495 {
3496 let leading_whitespace_len = buffer
3497 .reversed_chars_at(start)
3498 .take_while(|c| c.is_whitespace() && *c != '\n')
3499 .map(|c| c.len_utf8())
3500 .sum::<usize>();
3501
3502 let trailing_whitespace_len = buffer
3503 .chars_at(end)
3504 .take_while(|c| c.is_whitespace() && *c != '\n')
3505 .map(|c| c.len_utf8())
3506 .sum::<usize>();
3507
3508 let insert_extra_newline =
3509 language.brackets().any(|(pair, enabled)| {
3510 let pair_start = pair.start.trim_end();
3511 let pair_end = pair.end.trim_start();
3512
3513 enabled
3514 && pair.newline
3515 && buffer.contains_str_at(
3516 end + trailing_whitespace_len,
3517 pair_end,
3518 )
3519 && buffer.contains_str_at(
3520 (start - leading_whitespace_len)
3521 .saturating_sub(pair_start.len()),
3522 pair_start,
3523 )
3524 });
3525
3526 // Comment extension on newline is allowed only for cursor selections
3527 let comment_delimiter = maybe!({
3528 if !selection_is_empty {
3529 return None;
3530 }
3531
3532 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3533 return None;
3534 }
3535
3536 let delimiters = language.line_comment_prefixes();
3537 let max_len_of_delimiter =
3538 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3539 let (snapshot, range) =
3540 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3541
3542 let mut index_of_first_non_whitespace = 0;
3543 let comment_candidate = snapshot
3544 .chars_for_range(range)
3545 .skip_while(|c| {
3546 let should_skip = c.is_whitespace();
3547 if should_skip {
3548 index_of_first_non_whitespace += 1;
3549 }
3550 should_skip
3551 })
3552 .take(max_len_of_delimiter)
3553 .collect::<String>();
3554 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3555 comment_candidate.starts_with(comment_prefix.as_ref())
3556 })?;
3557 let cursor_is_placed_after_comment_marker =
3558 index_of_first_non_whitespace + comment_prefix.len()
3559 <= start_point.column as usize;
3560 if cursor_is_placed_after_comment_marker {
3561 Some(comment_prefix.clone())
3562 } else {
3563 None
3564 }
3565 });
3566 (comment_delimiter, insert_extra_newline)
3567 } else {
3568 (None, false)
3569 };
3570
3571 let capacity_for_delimiter = comment_delimiter
3572 .as_deref()
3573 .map(str::len)
3574 .unwrap_or_default();
3575 let mut new_text =
3576 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3577 new_text.push('\n');
3578 new_text.extend(indent.chars());
3579 if let Some(delimiter) = &comment_delimiter {
3580 new_text.push_str(delimiter);
3581 }
3582 if insert_extra_newline {
3583 new_text = new_text.repeat(2);
3584 }
3585
3586 let anchor = buffer.anchor_after(end);
3587 let new_selection = selection.map(|_| anchor);
3588 (
3589 (start..end, new_text),
3590 (insert_extra_newline, new_selection),
3591 )
3592 })
3593 .unzip()
3594 };
3595
3596 this.edit_with_autoindent(edits, cx);
3597 let buffer = this.buffer.read(cx).snapshot(cx);
3598 let new_selections = selection_fixup_info
3599 .into_iter()
3600 .map(|(extra_newline_inserted, new_selection)| {
3601 let mut cursor = new_selection.end.to_point(&buffer);
3602 if extra_newline_inserted {
3603 cursor.row -= 1;
3604 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3605 }
3606 new_selection.map(|_| cursor)
3607 })
3608 .collect();
3609
3610 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3611 this.refresh_inline_completion(true, false, cx);
3612 });
3613 }
3614
3615 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3616 let buffer = self.buffer.read(cx);
3617 let snapshot = buffer.snapshot(cx);
3618
3619 let mut edits = Vec::new();
3620 let mut rows = Vec::new();
3621
3622 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3623 let cursor = selection.head();
3624 let row = cursor.row;
3625
3626 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3627
3628 let newline = "\n".to_string();
3629 edits.push((start_of_line..start_of_line, newline));
3630
3631 rows.push(row + rows_inserted as u32);
3632 }
3633
3634 self.transact(cx, |editor, cx| {
3635 editor.edit(edits, cx);
3636
3637 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3638 let mut index = 0;
3639 s.move_cursors_with(|map, _, _| {
3640 let row = rows[index];
3641 index += 1;
3642
3643 let point = Point::new(row, 0);
3644 let boundary = map.next_line_boundary(point).1;
3645 let clipped = map.clip_point(boundary, Bias::Left);
3646
3647 (clipped, SelectionGoal::None)
3648 });
3649 });
3650
3651 let mut indent_edits = Vec::new();
3652 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3653 for row in rows {
3654 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3655 for (row, indent) in indents {
3656 if indent.len == 0 {
3657 continue;
3658 }
3659
3660 let text = match indent.kind {
3661 IndentKind::Space => " ".repeat(indent.len as usize),
3662 IndentKind::Tab => "\t".repeat(indent.len as usize),
3663 };
3664 let point = Point::new(row.0, 0);
3665 indent_edits.push((point..point, text));
3666 }
3667 }
3668 editor.edit(indent_edits, cx);
3669 });
3670 }
3671
3672 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3673 let buffer = self.buffer.read(cx);
3674 let snapshot = buffer.snapshot(cx);
3675
3676 let mut edits = Vec::new();
3677 let mut rows = Vec::new();
3678 let mut rows_inserted = 0;
3679
3680 for selection in self.selections.all_adjusted(cx) {
3681 let cursor = selection.head();
3682 let row = cursor.row;
3683
3684 let point = Point::new(row + 1, 0);
3685 let start_of_line = snapshot.clip_point(point, Bias::Left);
3686
3687 let newline = "\n".to_string();
3688 edits.push((start_of_line..start_of_line, newline));
3689
3690 rows_inserted += 1;
3691 rows.push(row + rows_inserted);
3692 }
3693
3694 self.transact(cx, |editor, cx| {
3695 editor.edit(edits, cx);
3696
3697 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3698 let mut index = 0;
3699 s.move_cursors_with(|map, _, _| {
3700 let row = rows[index];
3701 index += 1;
3702
3703 let point = Point::new(row, 0);
3704 let boundary = map.next_line_boundary(point).1;
3705 let clipped = map.clip_point(boundary, Bias::Left);
3706
3707 (clipped, SelectionGoal::None)
3708 });
3709 });
3710
3711 let mut indent_edits = Vec::new();
3712 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3713 for row in rows {
3714 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3715 for (row, indent) in indents {
3716 if indent.len == 0 {
3717 continue;
3718 }
3719
3720 let text = match indent.kind {
3721 IndentKind::Space => " ".repeat(indent.len as usize),
3722 IndentKind::Tab => "\t".repeat(indent.len as usize),
3723 };
3724 let point = Point::new(row.0, 0);
3725 indent_edits.push((point..point, text));
3726 }
3727 }
3728 editor.edit(indent_edits, cx);
3729 });
3730 }
3731
3732 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3733 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3734 original_indent_columns: Vec::new(),
3735 });
3736 self.insert_with_autoindent_mode(text, autoindent, cx);
3737 }
3738
3739 fn insert_with_autoindent_mode(
3740 &mut self,
3741 text: &str,
3742 autoindent_mode: Option<AutoindentMode>,
3743 cx: &mut ViewContext<Self>,
3744 ) {
3745 if self.read_only(cx) {
3746 return;
3747 }
3748
3749 let text: Arc<str> = text.into();
3750 self.transact(cx, |this, cx| {
3751 let old_selections = this.selections.all_adjusted(cx);
3752 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3753 let anchors = {
3754 let snapshot = buffer.read(cx);
3755 old_selections
3756 .iter()
3757 .map(|s| {
3758 let anchor = snapshot.anchor_after(s.head());
3759 s.map(|_| anchor)
3760 })
3761 .collect::<Vec<_>>()
3762 };
3763 buffer.edit(
3764 old_selections
3765 .iter()
3766 .map(|s| (s.start..s.end, text.clone())),
3767 autoindent_mode,
3768 cx,
3769 );
3770 anchors
3771 });
3772
3773 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3774 s.select_anchors(selection_anchors);
3775 })
3776 });
3777 }
3778
3779 fn trigger_completion_on_input(
3780 &mut self,
3781 text: &str,
3782 trigger_in_words: bool,
3783 cx: &mut ViewContext<Self>,
3784 ) {
3785 if self.is_completion_trigger(text, trigger_in_words, cx) {
3786 self.show_completions(
3787 &ShowCompletions {
3788 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3789 },
3790 cx,
3791 );
3792 } else {
3793 self.hide_context_menu(cx);
3794 }
3795 }
3796
3797 fn is_completion_trigger(
3798 &self,
3799 text: &str,
3800 trigger_in_words: bool,
3801 cx: &mut ViewContext<Self>,
3802 ) -> bool {
3803 let position = self.selections.newest_anchor().head();
3804 let multibuffer = self.buffer.read(cx);
3805 let Some(buffer) = position
3806 .buffer_id
3807 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3808 else {
3809 return false;
3810 };
3811
3812 if let Some(completion_provider) = &self.completion_provider {
3813 completion_provider.is_completion_trigger(
3814 &buffer,
3815 position.text_anchor,
3816 text,
3817 trigger_in_words,
3818 cx,
3819 )
3820 } else {
3821 false
3822 }
3823 }
3824
3825 /// If any empty selections is touching the start of its innermost containing autoclose
3826 /// region, expand it to select the brackets.
3827 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3828 let selections = self.selections.all::<usize>(cx);
3829 let buffer = self.buffer.read(cx).read(cx);
3830 let new_selections = self
3831 .selections_with_autoclose_regions(selections, &buffer)
3832 .map(|(mut selection, region)| {
3833 if !selection.is_empty() {
3834 return selection;
3835 }
3836
3837 if let Some(region) = region {
3838 let mut range = region.range.to_offset(&buffer);
3839 if selection.start == range.start && range.start >= region.pair.start.len() {
3840 range.start -= region.pair.start.len();
3841 if buffer.contains_str_at(range.start, ®ion.pair.start)
3842 && buffer.contains_str_at(range.end, ®ion.pair.end)
3843 {
3844 range.end += region.pair.end.len();
3845 selection.start = range.start;
3846 selection.end = range.end;
3847
3848 return selection;
3849 }
3850 }
3851 }
3852
3853 let always_treat_brackets_as_autoclosed = buffer
3854 .settings_at(selection.start, cx)
3855 .always_treat_brackets_as_autoclosed;
3856
3857 if !always_treat_brackets_as_autoclosed {
3858 return selection;
3859 }
3860
3861 if let Some(scope) = buffer.language_scope_at(selection.start) {
3862 for (pair, enabled) in scope.brackets() {
3863 if !enabled || !pair.close {
3864 continue;
3865 }
3866
3867 if buffer.contains_str_at(selection.start, &pair.end) {
3868 let pair_start_len = pair.start.len();
3869 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3870 {
3871 selection.start -= pair_start_len;
3872 selection.end += pair.end.len();
3873
3874 return selection;
3875 }
3876 }
3877 }
3878 }
3879
3880 selection
3881 })
3882 .collect();
3883
3884 drop(buffer);
3885 self.change_selections(None, cx, |selections| selections.select(new_selections));
3886 }
3887
3888 /// Iterate the given selections, and for each one, find the smallest surrounding
3889 /// autoclose region. This uses the ordering of the selections and the autoclose
3890 /// regions to avoid repeated comparisons.
3891 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3892 &'a self,
3893 selections: impl IntoIterator<Item = Selection<D>>,
3894 buffer: &'a MultiBufferSnapshot,
3895 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3896 let mut i = 0;
3897 let mut regions = self.autoclose_regions.as_slice();
3898 selections.into_iter().map(move |selection| {
3899 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3900
3901 let mut enclosing = None;
3902 while let Some(pair_state) = regions.get(i) {
3903 if pair_state.range.end.to_offset(buffer) < range.start {
3904 regions = ®ions[i + 1..];
3905 i = 0;
3906 } else if pair_state.range.start.to_offset(buffer) > range.end {
3907 break;
3908 } else {
3909 if pair_state.selection_id == selection.id {
3910 enclosing = Some(pair_state);
3911 }
3912 i += 1;
3913 }
3914 }
3915
3916 (selection.clone(), enclosing)
3917 })
3918 }
3919
3920 /// Remove any autoclose regions that no longer contain their selection.
3921 fn invalidate_autoclose_regions(
3922 &mut self,
3923 mut selections: &[Selection<Anchor>],
3924 buffer: &MultiBufferSnapshot,
3925 ) {
3926 self.autoclose_regions.retain(|state| {
3927 let mut i = 0;
3928 while let Some(selection) = selections.get(i) {
3929 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3930 selections = &selections[1..];
3931 continue;
3932 }
3933 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3934 break;
3935 }
3936 if selection.id == state.selection_id {
3937 return true;
3938 } else {
3939 i += 1;
3940 }
3941 }
3942 false
3943 });
3944 }
3945
3946 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3947 let offset = position.to_offset(buffer);
3948 let (word_range, kind) = buffer.surrounding_word(offset, true);
3949 if offset > word_range.start && kind == Some(CharKind::Word) {
3950 Some(
3951 buffer
3952 .text_for_range(word_range.start..offset)
3953 .collect::<String>(),
3954 )
3955 } else {
3956 None
3957 }
3958 }
3959
3960 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3961 self.refresh_inlay_hints(
3962 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3963 cx,
3964 );
3965 }
3966
3967 pub fn inlay_hints_enabled(&self) -> bool {
3968 self.inlay_hint_cache.enabled
3969 }
3970
3971 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3972 if self.project.is_none() || self.mode != EditorMode::Full {
3973 return;
3974 }
3975
3976 let reason_description = reason.description();
3977 let ignore_debounce = matches!(
3978 reason,
3979 InlayHintRefreshReason::SettingsChange(_)
3980 | InlayHintRefreshReason::Toggle(_)
3981 | InlayHintRefreshReason::ExcerptsRemoved(_)
3982 );
3983 let (invalidate_cache, required_languages) = match reason {
3984 InlayHintRefreshReason::Toggle(enabled) => {
3985 self.inlay_hint_cache.enabled = enabled;
3986 if enabled {
3987 (InvalidationStrategy::RefreshRequested, None)
3988 } else {
3989 self.inlay_hint_cache.clear();
3990 self.splice_inlays(
3991 self.visible_inlay_hints(cx)
3992 .iter()
3993 .map(|inlay| inlay.id)
3994 .collect(),
3995 Vec::new(),
3996 cx,
3997 );
3998 return;
3999 }
4000 }
4001 InlayHintRefreshReason::SettingsChange(new_settings) => {
4002 match self.inlay_hint_cache.update_settings(
4003 &self.buffer,
4004 new_settings,
4005 self.visible_inlay_hints(cx),
4006 cx,
4007 ) {
4008 ControlFlow::Break(Some(InlaySplice {
4009 to_remove,
4010 to_insert,
4011 })) => {
4012 self.splice_inlays(to_remove, to_insert, cx);
4013 return;
4014 }
4015 ControlFlow::Break(None) => return,
4016 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4017 }
4018 }
4019 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4020 if let Some(InlaySplice {
4021 to_remove,
4022 to_insert,
4023 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4024 {
4025 self.splice_inlays(to_remove, to_insert, cx);
4026 }
4027 return;
4028 }
4029 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4030 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4031 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4032 }
4033 InlayHintRefreshReason::RefreshRequested => {
4034 (InvalidationStrategy::RefreshRequested, None)
4035 }
4036 };
4037
4038 if let Some(InlaySplice {
4039 to_remove,
4040 to_insert,
4041 }) = self.inlay_hint_cache.spawn_hint_refresh(
4042 reason_description,
4043 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4044 invalidate_cache,
4045 ignore_debounce,
4046 cx,
4047 ) {
4048 self.splice_inlays(to_remove, to_insert, cx);
4049 }
4050 }
4051
4052 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4053 self.display_map
4054 .read(cx)
4055 .current_inlays()
4056 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4057 .cloned()
4058 .collect()
4059 }
4060
4061 pub fn excerpts_for_inlay_hints_query(
4062 &self,
4063 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4064 cx: &mut ViewContext<Editor>,
4065 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4066 let Some(project) = self.project.as_ref() else {
4067 return HashMap::default();
4068 };
4069 let project = project.read(cx);
4070 let multi_buffer = self.buffer().read(cx);
4071 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4072 let multi_buffer_visible_start = self
4073 .scroll_manager
4074 .anchor()
4075 .anchor
4076 .to_point(&multi_buffer_snapshot);
4077 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4078 multi_buffer_visible_start
4079 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4080 Bias::Left,
4081 );
4082 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4083 multi_buffer
4084 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4085 .into_iter()
4086 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4087 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4088 let buffer = buffer_handle.read(cx);
4089 let buffer_file = project::File::from_dyn(buffer.file())?;
4090 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4091 let worktree_entry = buffer_worktree
4092 .read(cx)
4093 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4094 if worktree_entry.is_ignored {
4095 return None;
4096 }
4097
4098 let language = buffer.language()?;
4099 if let Some(restrict_to_languages) = restrict_to_languages {
4100 if !restrict_to_languages.contains(language) {
4101 return None;
4102 }
4103 }
4104 Some((
4105 excerpt_id,
4106 (
4107 buffer_handle,
4108 buffer.version().clone(),
4109 excerpt_visible_range,
4110 ),
4111 ))
4112 })
4113 .collect()
4114 }
4115
4116 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4117 TextLayoutDetails {
4118 text_system: cx.text_system().clone(),
4119 editor_style: self.style.clone().unwrap(),
4120 rem_size: cx.rem_size(),
4121 scroll_anchor: self.scroll_manager.anchor(),
4122 visible_rows: self.visible_line_count(),
4123 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4124 }
4125 }
4126
4127 fn splice_inlays(
4128 &self,
4129 to_remove: Vec<InlayId>,
4130 to_insert: Vec<Inlay>,
4131 cx: &mut ViewContext<Self>,
4132 ) {
4133 self.display_map.update(cx, |display_map, cx| {
4134 display_map.splice_inlays(to_remove, to_insert, cx);
4135 });
4136 cx.notify();
4137 }
4138
4139 fn trigger_on_type_formatting(
4140 &self,
4141 input: String,
4142 cx: &mut ViewContext<Self>,
4143 ) -> Option<Task<Result<()>>> {
4144 if input.len() != 1 {
4145 return None;
4146 }
4147
4148 let project = self.project.as_ref()?;
4149 let position = self.selections.newest_anchor().head();
4150 let (buffer, buffer_position) = self
4151 .buffer
4152 .read(cx)
4153 .text_anchor_for_position(position, cx)?;
4154
4155 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4156 // hence we do LSP request & edit on host side only — add formats to host's history.
4157 let push_to_lsp_host_history = true;
4158 // If this is not the host, append its history with new edits.
4159 let push_to_client_history = project.read(cx).is_via_collab();
4160
4161 let on_type_formatting = project.update(cx, |project, cx| {
4162 project.on_type_format(
4163 buffer.clone(),
4164 buffer_position,
4165 input,
4166 push_to_lsp_host_history,
4167 cx,
4168 )
4169 });
4170 Some(cx.spawn(|editor, mut cx| async move {
4171 if let Some(transaction) = on_type_formatting.await? {
4172 if push_to_client_history {
4173 buffer
4174 .update(&mut cx, |buffer, _| {
4175 buffer.push_transaction(transaction, Instant::now());
4176 })
4177 .ok();
4178 }
4179 editor.update(&mut cx, |editor, cx| {
4180 editor.refresh_document_highlights(cx);
4181 })?;
4182 }
4183 Ok(())
4184 }))
4185 }
4186
4187 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4188 if self.pending_rename.is_some() {
4189 return;
4190 }
4191
4192 let Some(provider) = self.completion_provider.as_ref() else {
4193 return;
4194 };
4195
4196 let position = self.selections.newest_anchor().head();
4197 let (buffer, buffer_position) =
4198 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4199 output
4200 } else {
4201 return;
4202 };
4203
4204 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4205 let is_followup_invoke = {
4206 let context_menu_state = self.context_menu.read();
4207 matches!(
4208 context_menu_state.deref(),
4209 Some(ContextMenu::Completions(_))
4210 )
4211 };
4212 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4213 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4214 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4215 CompletionTriggerKind::TRIGGER_CHARACTER
4216 }
4217
4218 _ => CompletionTriggerKind::INVOKED,
4219 };
4220 let completion_context = CompletionContext {
4221 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4222 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4223 Some(String::from(trigger))
4224 } else {
4225 None
4226 }
4227 }),
4228 trigger_kind,
4229 };
4230 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4231 let sort_completions = provider.sort_completions();
4232
4233 let id = post_inc(&mut self.next_completion_id);
4234 let task = cx.spawn(|this, mut cx| {
4235 async move {
4236 this.update(&mut cx, |this, _| {
4237 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4238 })?;
4239 let completions = completions.await.log_err();
4240 let menu = if let Some(completions) = completions {
4241 let mut menu = CompletionsMenu {
4242 id,
4243 sort_completions,
4244 initial_position: position,
4245 match_candidates: completions
4246 .iter()
4247 .enumerate()
4248 .map(|(id, completion)| {
4249 StringMatchCandidate::new(
4250 id,
4251 completion.label.text[completion.label.filter_range.clone()]
4252 .into(),
4253 )
4254 })
4255 .collect(),
4256 buffer: buffer.clone(),
4257 completions: Arc::new(RwLock::new(completions.into())),
4258 matches: Vec::new().into(),
4259 selected_item: 0,
4260 scroll_handle: UniformListScrollHandle::new(),
4261 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4262 DebouncedDelay::new(),
4263 )),
4264 };
4265 menu.filter(query.as_deref(), cx.background_executor().clone())
4266 .await;
4267
4268 if menu.matches.is_empty() {
4269 None
4270 } else {
4271 this.update(&mut cx, |editor, cx| {
4272 let completions = menu.completions.clone();
4273 let matches = menu.matches.clone();
4274
4275 let delay_ms = EditorSettings::get_global(cx)
4276 .completion_documentation_secondary_query_debounce;
4277 let delay = Duration::from_millis(delay_ms);
4278 editor
4279 .completion_documentation_pre_resolve_debounce
4280 .fire_new(delay, cx, |editor, cx| {
4281 CompletionsMenu::pre_resolve_completion_documentation(
4282 buffer,
4283 completions,
4284 matches,
4285 editor,
4286 cx,
4287 )
4288 });
4289 })
4290 .ok();
4291 Some(menu)
4292 }
4293 } else {
4294 None
4295 };
4296
4297 this.update(&mut cx, |this, cx| {
4298 let mut context_menu = this.context_menu.write();
4299 match context_menu.as_ref() {
4300 None => {}
4301
4302 Some(ContextMenu::Completions(prev_menu)) => {
4303 if prev_menu.id > id {
4304 return;
4305 }
4306 }
4307
4308 _ => return,
4309 }
4310
4311 if this.focus_handle.is_focused(cx) && menu.is_some() {
4312 let menu = menu.unwrap();
4313 *context_menu = Some(ContextMenu::Completions(menu));
4314 drop(context_menu);
4315 this.discard_inline_completion(false, cx);
4316 cx.notify();
4317 } else if this.completion_tasks.len() <= 1 {
4318 // If there are no more completion tasks and the last menu was
4319 // empty, we should hide it. If it was already hidden, we should
4320 // also show the copilot completion when available.
4321 drop(context_menu);
4322 if this.hide_context_menu(cx).is_none() {
4323 this.update_visible_inline_completion(cx);
4324 }
4325 }
4326 })?;
4327
4328 Ok::<_, anyhow::Error>(())
4329 }
4330 .log_err()
4331 });
4332
4333 self.completion_tasks.push((id, task));
4334 }
4335
4336 pub fn confirm_completion(
4337 &mut self,
4338 action: &ConfirmCompletion,
4339 cx: &mut ViewContext<Self>,
4340 ) -> Option<Task<Result<()>>> {
4341 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4342 }
4343
4344 pub fn compose_completion(
4345 &mut self,
4346 action: &ComposeCompletion,
4347 cx: &mut ViewContext<Self>,
4348 ) -> Option<Task<Result<()>>> {
4349 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4350 }
4351
4352 fn do_completion(
4353 &mut self,
4354 item_ix: Option<usize>,
4355 intent: CompletionIntent,
4356 cx: &mut ViewContext<Editor>,
4357 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4358 use language::ToOffset as _;
4359
4360 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4361 menu
4362 } else {
4363 return None;
4364 };
4365
4366 let mat = completions_menu
4367 .matches
4368 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4369 let buffer_handle = completions_menu.buffer;
4370 let completions = completions_menu.completions.read();
4371 let completion = completions.get(mat.candidate_id)?;
4372 cx.stop_propagation();
4373
4374 let snippet;
4375 let text;
4376
4377 if completion.is_snippet() {
4378 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4379 text = snippet.as_ref().unwrap().text.clone();
4380 } else {
4381 snippet = None;
4382 text = completion.new_text.clone();
4383 };
4384 let selections = self.selections.all::<usize>(cx);
4385 let buffer = buffer_handle.read(cx);
4386 let old_range = completion.old_range.to_offset(buffer);
4387 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4388
4389 let newest_selection = self.selections.newest_anchor();
4390 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4391 return None;
4392 }
4393
4394 let lookbehind = newest_selection
4395 .start
4396 .text_anchor
4397 .to_offset(buffer)
4398 .saturating_sub(old_range.start);
4399 let lookahead = old_range
4400 .end
4401 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4402 let mut common_prefix_len = old_text
4403 .bytes()
4404 .zip(text.bytes())
4405 .take_while(|(a, b)| a == b)
4406 .count();
4407
4408 let snapshot = self.buffer.read(cx).snapshot(cx);
4409 let mut range_to_replace: Option<Range<isize>> = None;
4410 let mut ranges = Vec::new();
4411 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4412 for selection in &selections {
4413 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4414 let start = selection.start.saturating_sub(lookbehind);
4415 let end = selection.end + lookahead;
4416 if selection.id == newest_selection.id {
4417 range_to_replace = Some(
4418 ((start + common_prefix_len) as isize - selection.start as isize)
4419 ..(end as isize - selection.start as isize),
4420 );
4421 }
4422 ranges.push(start + common_prefix_len..end);
4423 } else {
4424 common_prefix_len = 0;
4425 ranges.clear();
4426 ranges.extend(selections.iter().map(|s| {
4427 if s.id == newest_selection.id {
4428 range_to_replace = Some(
4429 old_range.start.to_offset_utf16(&snapshot).0 as isize
4430 - selection.start as isize
4431 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4432 - selection.start as isize,
4433 );
4434 old_range.clone()
4435 } else {
4436 s.start..s.end
4437 }
4438 }));
4439 break;
4440 }
4441 if !self.linked_edit_ranges.is_empty() {
4442 let start_anchor = snapshot.anchor_before(selection.head());
4443 let end_anchor = snapshot.anchor_after(selection.tail());
4444 if let Some(ranges) = self
4445 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4446 {
4447 for (buffer, edits) in ranges {
4448 linked_edits.entry(buffer.clone()).or_default().extend(
4449 edits
4450 .into_iter()
4451 .map(|range| (range, text[common_prefix_len..].to_owned())),
4452 );
4453 }
4454 }
4455 }
4456 }
4457 let text = &text[common_prefix_len..];
4458
4459 cx.emit(EditorEvent::InputHandled {
4460 utf16_range_to_replace: range_to_replace,
4461 text: text.into(),
4462 });
4463
4464 self.transact(cx, |this, cx| {
4465 if let Some(mut snippet) = snippet {
4466 snippet.text = text.to_string();
4467 for tabstop in snippet.tabstops.iter_mut().flatten() {
4468 tabstop.start -= common_prefix_len as isize;
4469 tabstop.end -= common_prefix_len as isize;
4470 }
4471
4472 this.insert_snippet(&ranges, snippet, cx).log_err();
4473 } else {
4474 this.buffer.update(cx, |buffer, cx| {
4475 buffer.edit(
4476 ranges.iter().map(|range| (range.clone(), text)),
4477 this.autoindent_mode.clone(),
4478 cx,
4479 );
4480 });
4481 }
4482 for (buffer, edits) in linked_edits {
4483 buffer.update(cx, |buffer, cx| {
4484 let snapshot = buffer.snapshot();
4485 let edits = edits
4486 .into_iter()
4487 .map(|(range, text)| {
4488 use text::ToPoint as TP;
4489 let end_point = TP::to_point(&range.end, &snapshot);
4490 let start_point = TP::to_point(&range.start, &snapshot);
4491 (start_point..end_point, text)
4492 })
4493 .sorted_by_key(|(range, _)| range.start)
4494 .collect::<Vec<_>>();
4495 buffer.edit(edits, None, cx);
4496 })
4497 }
4498
4499 this.refresh_inline_completion(true, false, cx);
4500 });
4501
4502 let show_new_completions_on_confirm = completion
4503 .confirm
4504 .as_ref()
4505 .map_or(false, |confirm| confirm(intent, cx));
4506 if show_new_completions_on_confirm {
4507 self.show_completions(&ShowCompletions { trigger: None }, cx);
4508 }
4509
4510 let provider = self.completion_provider.as_ref()?;
4511 let apply_edits = provider.apply_additional_edits_for_completion(
4512 buffer_handle,
4513 completion.clone(),
4514 true,
4515 cx,
4516 );
4517
4518 let editor_settings = EditorSettings::get_global(cx);
4519 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4520 // After the code completion is finished, users often want to know what signatures are needed.
4521 // so we should automatically call signature_help
4522 self.show_signature_help(&ShowSignatureHelp, cx);
4523 }
4524
4525 Some(cx.foreground_executor().spawn(async move {
4526 apply_edits.await?;
4527 Ok(())
4528 }))
4529 }
4530
4531 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4532 let mut context_menu = self.context_menu.write();
4533 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4534 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4535 // Toggle if we're selecting the same one
4536 *context_menu = None;
4537 cx.notify();
4538 return;
4539 } else {
4540 // Otherwise, clear it and start a new one
4541 *context_menu = None;
4542 cx.notify();
4543 }
4544 }
4545 drop(context_menu);
4546 let snapshot = self.snapshot(cx);
4547 let deployed_from_indicator = action.deployed_from_indicator;
4548 let mut task = self.code_actions_task.take();
4549 let action = action.clone();
4550 cx.spawn(|editor, mut cx| async move {
4551 while let Some(prev_task) = task {
4552 prev_task.await;
4553 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4554 }
4555
4556 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4557 if editor.focus_handle.is_focused(cx) {
4558 let multibuffer_point = action
4559 .deployed_from_indicator
4560 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4561 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4562 let (buffer, buffer_row) = snapshot
4563 .buffer_snapshot
4564 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4565 .and_then(|(buffer_snapshot, range)| {
4566 editor
4567 .buffer
4568 .read(cx)
4569 .buffer(buffer_snapshot.remote_id())
4570 .map(|buffer| (buffer, range.start.row))
4571 })?;
4572 let (_, code_actions) = editor
4573 .available_code_actions
4574 .clone()
4575 .and_then(|(location, code_actions)| {
4576 let snapshot = location.buffer.read(cx).snapshot();
4577 let point_range = location.range.to_point(&snapshot);
4578 let point_range = point_range.start.row..=point_range.end.row;
4579 if point_range.contains(&buffer_row) {
4580 Some((location, code_actions))
4581 } else {
4582 None
4583 }
4584 })
4585 .unzip();
4586 let buffer_id = buffer.read(cx).remote_id();
4587 let tasks = editor
4588 .tasks
4589 .get(&(buffer_id, buffer_row))
4590 .map(|t| Arc::new(t.to_owned()));
4591 if tasks.is_none() && code_actions.is_none() {
4592 return None;
4593 }
4594
4595 editor.completion_tasks.clear();
4596 editor.discard_inline_completion(false, cx);
4597 let task_context =
4598 tasks
4599 .as_ref()
4600 .zip(editor.project.clone())
4601 .map(|(tasks, project)| {
4602 let position = Point::new(buffer_row, tasks.column);
4603 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4604 let location = Location {
4605 buffer: buffer.clone(),
4606 range: range_start..range_start,
4607 };
4608 // Fill in the environmental variables from the tree-sitter captures
4609 let mut captured_task_variables = TaskVariables::default();
4610 for (capture_name, value) in tasks.extra_variables.clone() {
4611 captured_task_variables.insert(
4612 task::VariableName::Custom(capture_name.into()),
4613 value.clone(),
4614 );
4615 }
4616 project.update(cx, |project, cx| {
4617 project.task_context_for_location(
4618 captured_task_variables,
4619 location,
4620 cx,
4621 )
4622 })
4623 });
4624
4625 Some(cx.spawn(|editor, mut cx| async move {
4626 let task_context = match task_context {
4627 Some(task_context) => task_context.await,
4628 None => None,
4629 };
4630 let resolved_tasks =
4631 tasks.zip(task_context).map(|(tasks, task_context)| {
4632 Arc::new(ResolvedTasks {
4633 templates: tasks
4634 .templates
4635 .iter()
4636 .filter_map(|(kind, template)| {
4637 template
4638 .resolve_task(&kind.to_id_base(), &task_context)
4639 .map(|task| (kind.clone(), task))
4640 })
4641 .collect(),
4642 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4643 multibuffer_point.row,
4644 tasks.column,
4645 )),
4646 })
4647 });
4648 let spawn_straight_away = resolved_tasks
4649 .as_ref()
4650 .map_or(false, |tasks| tasks.templates.len() == 1)
4651 && code_actions
4652 .as_ref()
4653 .map_or(true, |actions| actions.is_empty());
4654 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4655 *editor.context_menu.write() =
4656 Some(ContextMenu::CodeActions(CodeActionsMenu {
4657 buffer,
4658 actions: CodeActionContents {
4659 tasks: resolved_tasks,
4660 actions: code_actions,
4661 },
4662 selected_item: Default::default(),
4663 scroll_handle: UniformListScrollHandle::default(),
4664 deployed_from_indicator,
4665 }));
4666 if spawn_straight_away {
4667 if let Some(task) = editor.confirm_code_action(
4668 &ConfirmCodeAction { item_ix: Some(0) },
4669 cx,
4670 ) {
4671 cx.notify();
4672 return task;
4673 }
4674 }
4675 cx.notify();
4676 Task::ready(Ok(()))
4677 }) {
4678 task.await
4679 } else {
4680 Ok(())
4681 }
4682 }))
4683 } else {
4684 Some(Task::ready(Ok(())))
4685 }
4686 })?;
4687 if let Some(task) = spawned_test_task {
4688 task.await?;
4689 }
4690
4691 Ok::<_, anyhow::Error>(())
4692 })
4693 .detach_and_log_err(cx);
4694 }
4695
4696 pub fn confirm_code_action(
4697 &mut self,
4698 action: &ConfirmCodeAction,
4699 cx: &mut ViewContext<Self>,
4700 ) -> Option<Task<Result<()>>> {
4701 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4702 menu
4703 } else {
4704 return None;
4705 };
4706 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4707 let action = actions_menu.actions.get(action_ix)?;
4708 let title = action.label();
4709 let buffer = actions_menu.buffer;
4710 let workspace = self.workspace()?;
4711
4712 match action {
4713 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4714 workspace.update(cx, |workspace, cx| {
4715 workspace::tasks::schedule_resolved_task(
4716 workspace,
4717 task_source_kind,
4718 resolved_task,
4719 false,
4720 cx,
4721 );
4722
4723 Some(Task::ready(Ok(())))
4724 })
4725 }
4726 CodeActionsItem::CodeAction(action) => {
4727 let apply_code_actions = workspace
4728 .read(cx)
4729 .project()
4730 .clone()
4731 .update(cx, |project, cx| {
4732 project.apply_code_action(buffer, action, true, cx)
4733 });
4734 let workspace = workspace.downgrade();
4735 Some(cx.spawn(|editor, cx| async move {
4736 let project_transaction = apply_code_actions.await?;
4737 Self::open_project_transaction(
4738 &editor,
4739 workspace,
4740 project_transaction,
4741 title,
4742 cx,
4743 )
4744 .await
4745 }))
4746 }
4747 }
4748 }
4749
4750 pub async fn open_project_transaction(
4751 this: &WeakView<Editor>,
4752 workspace: WeakView<Workspace>,
4753 transaction: ProjectTransaction,
4754 title: String,
4755 mut cx: AsyncWindowContext,
4756 ) -> Result<()> {
4757 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4758 cx.update(|cx| {
4759 entries.sort_unstable_by_key(|(buffer, _)| {
4760 buffer.read(cx).file().map(|f| f.path().clone())
4761 });
4762 })?;
4763
4764 // If the project transaction's edits are all contained within this editor, then
4765 // avoid opening a new editor to display them.
4766
4767 if let Some((buffer, transaction)) = entries.first() {
4768 if entries.len() == 1 {
4769 let excerpt = this.update(&mut cx, |editor, cx| {
4770 editor
4771 .buffer()
4772 .read(cx)
4773 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4774 })?;
4775 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4776 if excerpted_buffer == *buffer {
4777 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4778 let excerpt_range = excerpt_range.to_offset(buffer);
4779 buffer
4780 .edited_ranges_for_transaction::<usize>(transaction)
4781 .all(|range| {
4782 excerpt_range.start <= range.start
4783 && excerpt_range.end >= range.end
4784 })
4785 })?;
4786
4787 if all_edits_within_excerpt {
4788 return Ok(());
4789 }
4790 }
4791 }
4792 }
4793 } else {
4794 return Ok(());
4795 }
4796
4797 let mut ranges_to_highlight = Vec::new();
4798 let excerpt_buffer = cx.new_model(|cx| {
4799 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4800 for (buffer_handle, transaction) in &entries {
4801 let buffer = buffer_handle.read(cx);
4802 ranges_to_highlight.extend(
4803 multibuffer.push_excerpts_with_context_lines(
4804 buffer_handle.clone(),
4805 buffer
4806 .edited_ranges_for_transaction::<usize>(transaction)
4807 .collect(),
4808 DEFAULT_MULTIBUFFER_CONTEXT,
4809 cx,
4810 ),
4811 );
4812 }
4813 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4814 multibuffer
4815 })?;
4816
4817 workspace.update(&mut cx, |workspace, cx| {
4818 let project = workspace.project().clone();
4819 let editor =
4820 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4821 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4822 editor.update(cx, |editor, cx| {
4823 editor.highlight_background::<Self>(
4824 &ranges_to_highlight,
4825 |theme| theme.editor_highlighted_line_background,
4826 cx,
4827 );
4828 });
4829 })?;
4830
4831 Ok(())
4832 }
4833
4834 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4835 let project = self.project.clone()?;
4836 let buffer = self.buffer.read(cx);
4837 let newest_selection = self.selections.newest_anchor().clone();
4838 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4839 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4840 if start_buffer != end_buffer {
4841 return None;
4842 }
4843
4844 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4845 cx.background_executor()
4846 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4847 .await;
4848
4849 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4850 project.code_actions(&start_buffer, start..end, cx)
4851 }) {
4852 code_actions.await
4853 } else {
4854 Vec::new()
4855 };
4856
4857 this.update(&mut cx, |this, cx| {
4858 this.available_code_actions = if actions.is_empty() {
4859 None
4860 } else {
4861 Some((
4862 Location {
4863 buffer: start_buffer,
4864 range: start..end,
4865 },
4866 actions.into(),
4867 ))
4868 };
4869 cx.notify();
4870 })
4871 .log_err();
4872 }));
4873 None
4874 }
4875
4876 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4877 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4878 self.show_git_blame_inline = false;
4879
4880 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4881 cx.background_executor().timer(delay).await;
4882
4883 this.update(&mut cx, |this, cx| {
4884 this.show_git_blame_inline = true;
4885 cx.notify();
4886 })
4887 .log_err();
4888 }));
4889 }
4890 }
4891
4892 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4893 if self.pending_rename.is_some() {
4894 return None;
4895 }
4896
4897 let project = self.project.clone()?;
4898 let buffer = self.buffer.read(cx);
4899 let newest_selection = self.selections.newest_anchor().clone();
4900 let cursor_position = newest_selection.head();
4901 let (cursor_buffer, cursor_buffer_position) =
4902 buffer.text_anchor_for_position(cursor_position, cx)?;
4903 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4904 if cursor_buffer != tail_buffer {
4905 return None;
4906 }
4907
4908 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4909 cx.background_executor()
4910 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4911 .await;
4912
4913 let highlights = if let Some(highlights) = project
4914 .update(&mut cx, |project, cx| {
4915 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4916 })
4917 .log_err()
4918 {
4919 highlights.await.log_err()
4920 } else {
4921 None
4922 };
4923
4924 if let Some(highlights) = highlights {
4925 this.update(&mut cx, |this, cx| {
4926 if this.pending_rename.is_some() {
4927 return;
4928 }
4929
4930 let buffer_id = cursor_position.buffer_id;
4931 let buffer = this.buffer.read(cx);
4932 if !buffer
4933 .text_anchor_for_position(cursor_position, cx)
4934 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4935 {
4936 return;
4937 }
4938
4939 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4940 let mut write_ranges = Vec::new();
4941 let mut read_ranges = Vec::new();
4942 for highlight in highlights {
4943 for (excerpt_id, excerpt_range) in
4944 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4945 {
4946 let start = highlight
4947 .range
4948 .start
4949 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4950 let end = highlight
4951 .range
4952 .end
4953 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4954 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4955 continue;
4956 }
4957
4958 let range = Anchor {
4959 buffer_id,
4960 excerpt_id,
4961 text_anchor: start,
4962 }..Anchor {
4963 buffer_id,
4964 excerpt_id,
4965 text_anchor: end,
4966 };
4967 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4968 write_ranges.push(range);
4969 } else {
4970 read_ranges.push(range);
4971 }
4972 }
4973 }
4974
4975 this.highlight_background::<DocumentHighlightRead>(
4976 &read_ranges,
4977 |theme| theme.editor_document_highlight_read_background,
4978 cx,
4979 );
4980 this.highlight_background::<DocumentHighlightWrite>(
4981 &write_ranges,
4982 |theme| theme.editor_document_highlight_write_background,
4983 cx,
4984 );
4985 cx.notify();
4986 })
4987 .log_err();
4988 }
4989 }));
4990 None
4991 }
4992
4993 pub fn refresh_inline_completion(
4994 &mut self,
4995 debounce: bool,
4996 user_requested: bool,
4997 cx: &mut ViewContext<Self>,
4998 ) -> Option<()> {
4999 let provider = self.inline_completion_provider()?;
5000 let cursor = self.selections.newest_anchor().head();
5001 let (buffer, cursor_buffer_position) =
5002 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5003
5004 if !user_requested
5005 && (!self.enable_inline_completions
5006 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5007 {
5008 self.discard_inline_completion(false, cx);
5009 return None;
5010 }
5011
5012 self.update_visible_inline_completion(cx);
5013 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5014 Some(())
5015 }
5016
5017 fn cycle_inline_completion(
5018 &mut self,
5019 direction: Direction,
5020 cx: &mut ViewContext<Self>,
5021 ) -> Option<()> {
5022 let provider = self.inline_completion_provider()?;
5023 let cursor = self.selections.newest_anchor().head();
5024 let (buffer, cursor_buffer_position) =
5025 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5026 if !self.enable_inline_completions
5027 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5028 {
5029 return None;
5030 }
5031
5032 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5033 self.update_visible_inline_completion(cx);
5034
5035 Some(())
5036 }
5037
5038 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5039 if !self.has_active_inline_completion(cx) {
5040 self.refresh_inline_completion(false, true, cx);
5041 return;
5042 }
5043
5044 self.update_visible_inline_completion(cx);
5045 }
5046
5047 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5048 self.show_cursor_names(cx);
5049 }
5050
5051 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5052 self.show_cursor_names = true;
5053 cx.notify();
5054 cx.spawn(|this, mut cx| async move {
5055 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5056 this.update(&mut cx, |this, cx| {
5057 this.show_cursor_names = false;
5058 cx.notify()
5059 })
5060 .ok()
5061 })
5062 .detach();
5063 }
5064
5065 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5066 if self.has_active_inline_completion(cx) {
5067 self.cycle_inline_completion(Direction::Next, cx);
5068 } else {
5069 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5070 if is_copilot_disabled {
5071 cx.propagate();
5072 }
5073 }
5074 }
5075
5076 pub fn previous_inline_completion(
5077 &mut self,
5078 _: &PreviousInlineCompletion,
5079 cx: &mut ViewContext<Self>,
5080 ) {
5081 if self.has_active_inline_completion(cx) {
5082 self.cycle_inline_completion(Direction::Prev, cx);
5083 } else {
5084 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5085 if is_copilot_disabled {
5086 cx.propagate();
5087 }
5088 }
5089 }
5090
5091 pub fn accept_inline_completion(
5092 &mut self,
5093 _: &AcceptInlineCompletion,
5094 cx: &mut ViewContext<Self>,
5095 ) {
5096 let Some(completion) = self.take_active_inline_completion(cx) else {
5097 return;
5098 };
5099 if let Some(provider) = self.inline_completion_provider() {
5100 provider.accept(cx);
5101 }
5102
5103 cx.emit(EditorEvent::InputHandled {
5104 utf16_range_to_replace: None,
5105 text: completion.text.to_string().into(),
5106 });
5107
5108 if let Some(range) = completion.delete_range {
5109 self.change_selections(None, cx, |s| s.select_ranges([range]))
5110 }
5111 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5112 self.refresh_inline_completion(true, true, cx);
5113 cx.notify();
5114 }
5115
5116 pub fn accept_partial_inline_completion(
5117 &mut self,
5118 _: &AcceptPartialInlineCompletion,
5119 cx: &mut ViewContext<Self>,
5120 ) {
5121 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5122 if let Some(completion) = self.take_active_inline_completion(cx) {
5123 let mut partial_completion = completion
5124 .text
5125 .chars()
5126 .by_ref()
5127 .take_while(|c| c.is_alphabetic())
5128 .collect::<String>();
5129 if partial_completion.is_empty() {
5130 partial_completion = completion
5131 .text
5132 .chars()
5133 .by_ref()
5134 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5135 .collect::<String>();
5136 }
5137
5138 cx.emit(EditorEvent::InputHandled {
5139 utf16_range_to_replace: None,
5140 text: partial_completion.clone().into(),
5141 });
5142
5143 if let Some(range) = completion.delete_range {
5144 self.change_selections(None, cx, |s| s.select_ranges([range]))
5145 }
5146 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5147
5148 self.refresh_inline_completion(true, true, cx);
5149 cx.notify();
5150 }
5151 }
5152 }
5153
5154 fn discard_inline_completion(
5155 &mut self,
5156 should_report_inline_completion_event: bool,
5157 cx: &mut ViewContext<Self>,
5158 ) -> bool {
5159 if let Some(provider) = self.inline_completion_provider() {
5160 provider.discard(should_report_inline_completion_event, cx);
5161 }
5162
5163 self.take_active_inline_completion(cx).is_some()
5164 }
5165
5166 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5167 if let Some(completion) = self.active_inline_completion.as_ref() {
5168 let buffer = self.buffer.read(cx).read(cx);
5169 completion.position.is_valid(&buffer)
5170 } else {
5171 false
5172 }
5173 }
5174
5175 fn take_active_inline_completion(
5176 &mut self,
5177 cx: &mut ViewContext<Self>,
5178 ) -> Option<CompletionState> {
5179 let completion = self.active_inline_completion.take()?;
5180 let render_inlay_ids = completion.render_inlay_ids.clone();
5181 self.display_map.update(cx, |map, cx| {
5182 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5183 });
5184 let buffer = self.buffer.read(cx).read(cx);
5185
5186 if completion.position.is_valid(&buffer) {
5187 Some(completion)
5188 } else {
5189 None
5190 }
5191 }
5192
5193 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5194 let selection = self.selections.newest_anchor();
5195 let cursor = selection.head();
5196
5197 let excerpt_id = cursor.excerpt_id;
5198
5199 if self.context_menu.read().is_none()
5200 && self.completion_tasks.is_empty()
5201 && selection.start == selection.end
5202 {
5203 if let Some(provider) = self.inline_completion_provider() {
5204 if let Some((buffer, cursor_buffer_position)) =
5205 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5206 {
5207 if let Some(proposal) =
5208 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5209 {
5210 let mut to_remove = Vec::new();
5211 if let Some(completion) = self.active_inline_completion.take() {
5212 to_remove.extend(completion.render_inlay_ids.iter());
5213 }
5214
5215 let to_add = proposal
5216 .inlays
5217 .iter()
5218 .filter_map(|inlay| {
5219 let snapshot = self.buffer.read(cx).snapshot(cx);
5220 let id = post_inc(&mut self.next_inlay_id);
5221 match inlay {
5222 InlayProposal::Hint(position, hint) => {
5223 let position =
5224 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5225 Some(Inlay::hint(id, position, hint))
5226 }
5227 InlayProposal::Suggestion(position, text) => {
5228 let position =
5229 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5230 Some(Inlay::suggestion(id, position, text.clone()))
5231 }
5232 }
5233 })
5234 .collect_vec();
5235
5236 self.active_inline_completion = Some(CompletionState {
5237 position: cursor,
5238 text: proposal.text,
5239 delete_range: proposal.delete_range.and_then(|range| {
5240 let snapshot = self.buffer.read(cx).snapshot(cx);
5241 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5242 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5243 Some(start?..end?)
5244 }),
5245 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5246 });
5247
5248 self.display_map
5249 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5250
5251 cx.notify();
5252 return;
5253 }
5254 }
5255 }
5256 }
5257
5258 self.discard_inline_completion(false, cx);
5259 }
5260
5261 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5262 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5263 }
5264
5265 fn render_code_actions_indicator(
5266 &self,
5267 _style: &EditorStyle,
5268 row: DisplayRow,
5269 is_active: bool,
5270 cx: &mut ViewContext<Self>,
5271 ) -> Option<IconButton> {
5272 if self.available_code_actions.is_some() {
5273 Some(
5274 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5275 .shape(ui::IconButtonShape::Square)
5276 .icon_size(IconSize::XSmall)
5277 .icon_color(Color::Muted)
5278 .selected(is_active)
5279 .on_click(cx.listener(move |editor, _e, cx| {
5280 editor.focus(cx);
5281 editor.toggle_code_actions(
5282 &ToggleCodeActions {
5283 deployed_from_indicator: Some(row),
5284 },
5285 cx,
5286 );
5287 })),
5288 )
5289 } else {
5290 None
5291 }
5292 }
5293
5294 fn clear_tasks(&mut self) {
5295 self.tasks.clear()
5296 }
5297
5298 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5299 if self.tasks.insert(key, value).is_some() {
5300 // This case should hopefully be rare, but just in case...
5301 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5302 }
5303 }
5304
5305 fn render_run_indicator(
5306 &self,
5307 _style: &EditorStyle,
5308 is_active: bool,
5309 row: DisplayRow,
5310 cx: &mut ViewContext<Self>,
5311 ) -> IconButton {
5312 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5313 .shape(ui::IconButtonShape::Square)
5314 .icon_size(IconSize::XSmall)
5315 .icon_color(Color::Muted)
5316 .selected(is_active)
5317 .on_click(cx.listener(move |editor, _e, cx| {
5318 editor.focus(cx);
5319 editor.toggle_code_actions(
5320 &ToggleCodeActions {
5321 deployed_from_indicator: Some(row),
5322 },
5323 cx,
5324 );
5325 }))
5326 }
5327
5328 fn close_hunk_diff_button(
5329 &self,
5330 hunk: HoveredHunk,
5331 row: DisplayRow,
5332 cx: &mut ViewContext<Self>,
5333 ) -> IconButton {
5334 IconButton::new(
5335 ("close_hunk_diff_indicator", row.0 as usize),
5336 ui::IconName::Close,
5337 )
5338 .shape(ui::IconButtonShape::Square)
5339 .icon_size(IconSize::XSmall)
5340 .icon_color(Color::Muted)
5341 .tooltip(|cx| Tooltip::for_action("Close hunk diff", &ToggleHunkDiff, cx))
5342 .on_click(cx.listener(move |editor, _e, cx| editor.toggle_hovered_hunk(&hunk, cx)))
5343 }
5344
5345 pub fn context_menu_visible(&self) -> bool {
5346 self.context_menu
5347 .read()
5348 .as_ref()
5349 .map_or(false, |menu| menu.visible())
5350 }
5351
5352 fn render_context_menu(
5353 &self,
5354 cursor_position: DisplayPoint,
5355 style: &EditorStyle,
5356 max_height: Pixels,
5357 cx: &mut ViewContext<Editor>,
5358 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5359 self.context_menu.read().as_ref().map(|menu| {
5360 menu.render(
5361 cursor_position,
5362 style,
5363 max_height,
5364 self.workspace.as_ref().map(|(w, _)| w.clone()),
5365 cx,
5366 )
5367 })
5368 }
5369
5370 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5371 cx.notify();
5372 self.completion_tasks.clear();
5373 let context_menu = self.context_menu.write().take();
5374 if context_menu.is_some() {
5375 self.update_visible_inline_completion(cx);
5376 }
5377 context_menu
5378 }
5379
5380 pub fn insert_snippet(
5381 &mut self,
5382 insertion_ranges: &[Range<usize>],
5383 snippet: Snippet,
5384 cx: &mut ViewContext<Self>,
5385 ) -> Result<()> {
5386 struct Tabstop<T> {
5387 is_end_tabstop: bool,
5388 ranges: Vec<Range<T>>,
5389 }
5390
5391 let tabstops = self.buffer.update(cx, |buffer, cx| {
5392 let snippet_text: Arc<str> = snippet.text.clone().into();
5393 buffer.edit(
5394 insertion_ranges
5395 .iter()
5396 .cloned()
5397 .map(|range| (range, snippet_text.clone())),
5398 Some(AutoindentMode::EachLine),
5399 cx,
5400 );
5401
5402 let snapshot = &*buffer.read(cx);
5403 let snippet = &snippet;
5404 snippet
5405 .tabstops
5406 .iter()
5407 .map(|tabstop| {
5408 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5409 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5410 });
5411 let mut tabstop_ranges = tabstop
5412 .iter()
5413 .flat_map(|tabstop_range| {
5414 let mut delta = 0_isize;
5415 insertion_ranges.iter().map(move |insertion_range| {
5416 let insertion_start = insertion_range.start as isize + delta;
5417 delta +=
5418 snippet.text.len() as isize - insertion_range.len() as isize;
5419
5420 let start = ((insertion_start + tabstop_range.start) as usize)
5421 .min(snapshot.len());
5422 let end = ((insertion_start + tabstop_range.end) as usize)
5423 .min(snapshot.len());
5424 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5425 })
5426 })
5427 .collect::<Vec<_>>();
5428 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5429
5430 Tabstop {
5431 is_end_tabstop,
5432 ranges: tabstop_ranges,
5433 }
5434 })
5435 .collect::<Vec<_>>()
5436 });
5437 if let Some(tabstop) = tabstops.first() {
5438 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5439 s.select_ranges(tabstop.ranges.iter().cloned());
5440 });
5441
5442 // If we're already at the last tabstop and it's at the end of the snippet,
5443 // we're done, we don't need to keep the state around.
5444 if !tabstop.is_end_tabstop {
5445 let ranges = tabstops
5446 .into_iter()
5447 .map(|tabstop| tabstop.ranges)
5448 .collect::<Vec<_>>();
5449 self.snippet_stack.push(SnippetState {
5450 active_index: 0,
5451 ranges,
5452 });
5453 }
5454
5455 // Check whether the just-entered snippet ends with an auto-closable bracket.
5456 if self.autoclose_regions.is_empty() {
5457 let snapshot = self.buffer.read(cx).snapshot(cx);
5458 for selection in &mut self.selections.all::<Point>(cx) {
5459 let selection_head = selection.head();
5460 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5461 continue;
5462 };
5463
5464 let mut bracket_pair = None;
5465 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5466 let prev_chars = snapshot
5467 .reversed_chars_at(selection_head)
5468 .collect::<String>();
5469 for (pair, enabled) in scope.brackets() {
5470 if enabled
5471 && pair.close
5472 && prev_chars.starts_with(pair.start.as_str())
5473 && next_chars.starts_with(pair.end.as_str())
5474 {
5475 bracket_pair = Some(pair.clone());
5476 break;
5477 }
5478 }
5479 if let Some(pair) = bracket_pair {
5480 let start = snapshot.anchor_after(selection_head);
5481 let end = snapshot.anchor_after(selection_head);
5482 self.autoclose_regions.push(AutocloseRegion {
5483 selection_id: selection.id,
5484 range: start..end,
5485 pair,
5486 });
5487 }
5488 }
5489 }
5490 }
5491 Ok(())
5492 }
5493
5494 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5495 self.move_to_snippet_tabstop(Bias::Right, cx)
5496 }
5497
5498 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5499 self.move_to_snippet_tabstop(Bias::Left, cx)
5500 }
5501
5502 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5503 if let Some(mut snippet) = self.snippet_stack.pop() {
5504 match bias {
5505 Bias::Left => {
5506 if snippet.active_index > 0 {
5507 snippet.active_index -= 1;
5508 } else {
5509 self.snippet_stack.push(snippet);
5510 return false;
5511 }
5512 }
5513 Bias::Right => {
5514 if snippet.active_index + 1 < snippet.ranges.len() {
5515 snippet.active_index += 1;
5516 } else {
5517 self.snippet_stack.push(snippet);
5518 return false;
5519 }
5520 }
5521 }
5522 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5523 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5524 s.select_anchor_ranges(current_ranges.iter().cloned())
5525 });
5526 // If snippet state is not at the last tabstop, push it back on the stack
5527 if snippet.active_index + 1 < snippet.ranges.len() {
5528 self.snippet_stack.push(snippet);
5529 }
5530 return true;
5531 }
5532 }
5533
5534 false
5535 }
5536
5537 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5538 self.transact(cx, |this, cx| {
5539 this.select_all(&SelectAll, cx);
5540 this.insert("", cx);
5541 });
5542 }
5543
5544 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5545 self.transact(cx, |this, cx| {
5546 this.select_autoclose_pair(cx);
5547 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5548 if !this.linked_edit_ranges.is_empty() {
5549 let selections = this.selections.all::<MultiBufferPoint>(cx);
5550 let snapshot = this.buffer.read(cx).snapshot(cx);
5551
5552 for selection in selections.iter() {
5553 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5554 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5555 if selection_start.buffer_id != selection_end.buffer_id {
5556 continue;
5557 }
5558 if let Some(ranges) =
5559 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5560 {
5561 for (buffer, entries) in ranges {
5562 linked_ranges.entry(buffer).or_default().extend(entries);
5563 }
5564 }
5565 }
5566 }
5567
5568 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5569 if !this.selections.line_mode {
5570 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5571 for selection in &mut selections {
5572 if selection.is_empty() {
5573 let old_head = selection.head();
5574 let mut new_head =
5575 movement::left(&display_map, old_head.to_display_point(&display_map))
5576 .to_point(&display_map);
5577 if let Some((buffer, line_buffer_range)) = display_map
5578 .buffer_snapshot
5579 .buffer_line_for_row(MultiBufferRow(old_head.row))
5580 {
5581 let indent_size =
5582 buffer.indent_size_for_line(line_buffer_range.start.row);
5583 let indent_len = match indent_size.kind {
5584 IndentKind::Space => {
5585 buffer.settings_at(line_buffer_range.start, cx).tab_size
5586 }
5587 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5588 };
5589 if old_head.column <= indent_size.len && old_head.column > 0 {
5590 let indent_len = indent_len.get();
5591 new_head = cmp::min(
5592 new_head,
5593 MultiBufferPoint::new(
5594 old_head.row,
5595 ((old_head.column - 1) / indent_len) * indent_len,
5596 ),
5597 );
5598 }
5599 }
5600
5601 selection.set_head(new_head, SelectionGoal::None);
5602 }
5603 }
5604 }
5605
5606 this.signature_help_state.set_backspace_pressed(true);
5607 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5608 this.insert("", cx);
5609 let empty_str: Arc<str> = Arc::from("");
5610 for (buffer, edits) in linked_ranges {
5611 let snapshot = buffer.read(cx).snapshot();
5612 use text::ToPoint as TP;
5613
5614 let edits = edits
5615 .into_iter()
5616 .map(|range| {
5617 let end_point = TP::to_point(&range.end, &snapshot);
5618 let mut start_point = TP::to_point(&range.start, &snapshot);
5619
5620 if end_point == start_point {
5621 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5622 .saturating_sub(1);
5623 start_point = TP::to_point(&offset, &snapshot);
5624 };
5625
5626 (start_point..end_point, empty_str.clone())
5627 })
5628 .sorted_by_key(|(range, _)| range.start)
5629 .collect::<Vec<_>>();
5630 buffer.update(cx, |this, cx| {
5631 this.edit(edits, None, cx);
5632 })
5633 }
5634 this.refresh_inline_completion(true, false, cx);
5635 linked_editing_ranges::refresh_linked_ranges(this, cx);
5636 });
5637 }
5638
5639 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5640 self.transact(cx, |this, cx| {
5641 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5642 let line_mode = s.line_mode;
5643 s.move_with(|map, selection| {
5644 if selection.is_empty() && !line_mode {
5645 let cursor = movement::right(map, selection.head());
5646 selection.end = cursor;
5647 selection.reversed = true;
5648 selection.goal = SelectionGoal::None;
5649 }
5650 })
5651 });
5652 this.insert("", cx);
5653 this.refresh_inline_completion(true, false, cx);
5654 });
5655 }
5656
5657 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5658 if self.move_to_prev_snippet_tabstop(cx) {
5659 return;
5660 }
5661
5662 self.outdent(&Outdent, cx);
5663 }
5664
5665 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5666 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5667 return;
5668 }
5669
5670 let mut selections = self.selections.all_adjusted(cx);
5671 let buffer = self.buffer.read(cx);
5672 let snapshot = buffer.snapshot(cx);
5673 let rows_iter = selections.iter().map(|s| s.head().row);
5674 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5675
5676 let mut edits = Vec::new();
5677 let mut prev_edited_row = 0;
5678 let mut row_delta = 0;
5679 for selection in &mut selections {
5680 if selection.start.row != prev_edited_row {
5681 row_delta = 0;
5682 }
5683 prev_edited_row = selection.end.row;
5684
5685 // If the selection is non-empty, then increase the indentation of the selected lines.
5686 if !selection.is_empty() {
5687 row_delta =
5688 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5689 continue;
5690 }
5691
5692 // If the selection is empty and the cursor is in the leading whitespace before the
5693 // suggested indentation, then auto-indent the line.
5694 let cursor = selection.head();
5695 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5696 if let Some(suggested_indent) =
5697 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5698 {
5699 if cursor.column < suggested_indent.len
5700 && cursor.column <= current_indent.len
5701 && current_indent.len <= suggested_indent.len
5702 {
5703 selection.start = Point::new(cursor.row, suggested_indent.len);
5704 selection.end = selection.start;
5705 if row_delta == 0 {
5706 edits.extend(Buffer::edit_for_indent_size_adjustment(
5707 cursor.row,
5708 current_indent,
5709 suggested_indent,
5710 ));
5711 row_delta = suggested_indent.len - current_indent.len;
5712 }
5713 continue;
5714 }
5715 }
5716
5717 // Otherwise, insert a hard or soft tab.
5718 let settings = buffer.settings_at(cursor, cx);
5719 let tab_size = if settings.hard_tabs {
5720 IndentSize::tab()
5721 } else {
5722 let tab_size = settings.tab_size.get();
5723 let char_column = snapshot
5724 .text_for_range(Point::new(cursor.row, 0)..cursor)
5725 .flat_map(str::chars)
5726 .count()
5727 + row_delta as usize;
5728 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5729 IndentSize::spaces(chars_to_next_tab_stop)
5730 };
5731 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5732 selection.end = selection.start;
5733 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5734 row_delta += tab_size.len;
5735 }
5736
5737 self.transact(cx, |this, cx| {
5738 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5739 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5740 this.refresh_inline_completion(true, false, cx);
5741 });
5742 }
5743
5744 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5745 if self.read_only(cx) {
5746 return;
5747 }
5748 let mut selections = self.selections.all::<Point>(cx);
5749 let mut prev_edited_row = 0;
5750 let mut row_delta = 0;
5751 let mut edits = Vec::new();
5752 let buffer = self.buffer.read(cx);
5753 let snapshot = buffer.snapshot(cx);
5754 for selection in &mut selections {
5755 if selection.start.row != prev_edited_row {
5756 row_delta = 0;
5757 }
5758 prev_edited_row = selection.end.row;
5759
5760 row_delta =
5761 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5762 }
5763
5764 self.transact(cx, |this, cx| {
5765 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5766 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5767 });
5768 }
5769
5770 fn indent_selection(
5771 buffer: &MultiBuffer,
5772 snapshot: &MultiBufferSnapshot,
5773 selection: &mut Selection<Point>,
5774 edits: &mut Vec<(Range<Point>, String)>,
5775 delta_for_start_row: u32,
5776 cx: &AppContext,
5777 ) -> u32 {
5778 let settings = buffer.settings_at(selection.start, cx);
5779 let tab_size = settings.tab_size.get();
5780 let indent_kind = if settings.hard_tabs {
5781 IndentKind::Tab
5782 } else {
5783 IndentKind::Space
5784 };
5785 let mut start_row = selection.start.row;
5786 let mut end_row = selection.end.row + 1;
5787
5788 // If a selection ends at the beginning of a line, don't indent
5789 // that last line.
5790 if selection.end.column == 0 && selection.end.row > selection.start.row {
5791 end_row -= 1;
5792 }
5793
5794 // Avoid re-indenting a row that has already been indented by a
5795 // previous selection, but still update this selection's column
5796 // to reflect that indentation.
5797 if delta_for_start_row > 0 {
5798 start_row += 1;
5799 selection.start.column += delta_for_start_row;
5800 if selection.end.row == selection.start.row {
5801 selection.end.column += delta_for_start_row;
5802 }
5803 }
5804
5805 let mut delta_for_end_row = 0;
5806 let has_multiple_rows = start_row + 1 != end_row;
5807 for row in start_row..end_row {
5808 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5809 let indent_delta = match (current_indent.kind, indent_kind) {
5810 (IndentKind::Space, IndentKind::Space) => {
5811 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5812 IndentSize::spaces(columns_to_next_tab_stop)
5813 }
5814 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5815 (_, IndentKind::Tab) => IndentSize::tab(),
5816 };
5817
5818 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5819 0
5820 } else {
5821 selection.start.column
5822 };
5823 let row_start = Point::new(row, start);
5824 edits.push((
5825 row_start..row_start,
5826 indent_delta.chars().collect::<String>(),
5827 ));
5828
5829 // Update this selection's endpoints to reflect the indentation.
5830 if row == selection.start.row {
5831 selection.start.column += indent_delta.len;
5832 }
5833 if row == selection.end.row {
5834 selection.end.column += indent_delta.len;
5835 delta_for_end_row = indent_delta.len;
5836 }
5837 }
5838
5839 if selection.start.row == selection.end.row {
5840 delta_for_start_row + delta_for_end_row
5841 } else {
5842 delta_for_end_row
5843 }
5844 }
5845
5846 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5847 if self.read_only(cx) {
5848 return;
5849 }
5850 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5851 let selections = self.selections.all::<Point>(cx);
5852 let mut deletion_ranges = Vec::new();
5853 let mut last_outdent = None;
5854 {
5855 let buffer = self.buffer.read(cx);
5856 let snapshot = buffer.snapshot(cx);
5857 for selection in &selections {
5858 let settings = buffer.settings_at(selection.start, cx);
5859 let tab_size = settings.tab_size.get();
5860 let mut rows = selection.spanned_rows(false, &display_map);
5861
5862 // Avoid re-outdenting a row that has already been outdented by a
5863 // previous selection.
5864 if let Some(last_row) = last_outdent {
5865 if last_row == rows.start {
5866 rows.start = rows.start.next_row();
5867 }
5868 }
5869 let has_multiple_rows = rows.len() > 1;
5870 for row in rows.iter_rows() {
5871 let indent_size = snapshot.indent_size_for_line(row);
5872 if indent_size.len > 0 {
5873 let deletion_len = match indent_size.kind {
5874 IndentKind::Space => {
5875 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5876 if columns_to_prev_tab_stop == 0 {
5877 tab_size
5878 } else {
5879 columns_to_prev_tab_stop
5880 }
5881 }
5882 IndentKind::Tab => 1,
5883 };
5884 let start = if has_multiple_rows
5885 || deletion_len > selection.start.column
5886 || indent_size.len < selection.start.column
5887 {
5888 0
5889 } else {
5890 selection.start.column - deletion_len
5891 };
5892 deletion_ranges.push(
5893 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5894 );
5895 last_outdent = Some(row);
5896 }
5897 }
5898 }
5899 }
5900
5901 self.transact(cx, |this, cx| {
5902 this.buffer.update(cx, |buffer, cx| {
5903 let empty_str: Arc<str> = Arc::default();
5904 buffer.edit(
5905 deletion_ranges
5906 .into_iter()
5907 .map(|range| (range, empty_str.clone())),
5908 None,
5909 cx,
5910 );
5911 });
5912 let selections = this.selections.all::<usize>(cx);
5913 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5914 });
5915 }
5916
5917 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5918 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5919 let selections = self.selections.all::<Point>(cx);
5920
5921 let mut new_cursors = Vec::new();
5922 let mut edit_ranges = Vec::new();
5923 let mut selections = selections.iter().peekable();
5924 while let Some(selection) = selections.next() {
5925 let mut rows = selection.spanned_rows(false, &display_map);
5926 let goal_display_column = selection.head().to_display_point(&display_map).column();
5927
5928 // Accumulate contiguous regions of rows that we want to delete.
5929 while let Some(next_selection) = selections.peek() {
5930 let next_rows = next_selection.spanned_rows(false, &display_map);
5931 if next_rows.start <= rows.end {
5932 rows.end = next_rows.end;
5933 selections.next().unwrap();
5934 } else {
5935 break;
5936 }
5937 }
5938
5939 let buffer = &display_map.buffer_snapshot;
5940 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5941 let edit_end;
5942 let cursor_buffer_row;
5943 if buffer.max_point().row >= rows.end.0 {
5944 // If there's a line after the range, delete the \n from the end of the row range
5945 // and position the cursor on the next line.
5946 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5947 cursor_buffer_row = rows.end;
5948 } else {
5949 // If there isn't a line after the range, delete the \n from the line before the
5950 // start of the row range and position the cursor there.
5951 edit_start = edit_start.saturating_sub(1);
5952 edit_end = buffer.len();
5953 cursor_buffer_row = rows.start.previous_row();
5954 }
5955
5956 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5957 *cursor.column_mut() =
5958 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5959
5960 new_cursors.push((
5961 selection.id,
5962 buffer.anchor_after(cursor.to_point(&display_map)),
5963 ));
5964 edit_ranges.push(edit_start..edit_end);
5965 }
5966
5967 self.transact(cx, |this, cx| {
5968 let buffer = this.buffer.update(cx, |buffer, cx| {
5969 let empty_str: Arc<str> = Arc::default();
5970 buffer.edit(
5971 edit_ranges
5972 .into_iter()
5973 .map(|range| (range, empty_str.clone())),
5974 None,
5975 cx,
5976 );
5977 buffer.snapshot(cx)
5978 });
5979 let new_selections = new_cursors
5980 .into_iter()
5981 .map(|(id, cursor)| {
5982 let cursor = cursor.to_point(&buffer);
5983 Selection {
5984 id,
5985 start: cursor,
5986 end: cursor,
5987 reversed: false,
5988 goal: SelectionGoal::None,
5989 }
5990 })
5991 .collect();
5992
5993 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5994 s.select(new_selections);
5995 });
5996 });
5997 }
5998
5999 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6000 if self.read_only(cx) {
6001 return;
6002 }
6003 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6004 for selection in self.selections.all::<Point>(cx) {
6005 let start = MultiBufferRow(selection.start.row);
6006 let end = if selection.start.row == selection.end.row {
6007 MultiBufferRow(selection.start.row + 1)
6008 } else {
6009 MultiBufferRow(selection.end.row)
6010 };
6011
6012 if let Some(last_row_range) = row_ranges.last_mut() {
6013 if start <= last_row_range.end {
6014 last_row_range.end = end;
6015 continue;
6016 }
6017 }
6018 row_ranges.push(start..end);
6019 }
6020
6021 let snapshot = self.buffer.read(cx).snapshot(cx);
6022 let mut cursor_positions = Vec::new();
6023 for row_range in &row_ranges {
6024 let anchor = snapshot.anchor_before(Point::new(
6025 row_range.end.previous_row().0,
6026 snapshot.line_len(row_range.end.previous_row()),
6027 ));
6028 cursor_positions.push(anchor..anchor);
6029 }
6030
6031 self.transact(cx, |this, cx| {
6032 for row_range in row_ranges.into_iter().rev() {
6033 for row in row_range.iter_rows().rev() {
6034 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6035 let next_line_row = row.next_row();
6036 let indent = snapshot.indent_size_for_line(next_line_row);
6037 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6038
6039 let replace = if snapshot.line_len(next_line_row) > indent.len {
6040 " "
6041 } else {
6042 ""
6043 };
6044
6045 this.buffer.update(cx, |buffer, cx| {
6046 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6047 });
6048 }
6049 }
6050
6051 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6052 s.select_anchor_ranges(cursor_positions)
6053 });
6054 });
6055 }
6056
6057 pub fn sort_lines_case_sensitive(
6058 &mut self,
6059 _: &SortLinesCaseSensitive,
6060 cx: &mut ViewContext<Self>,
6061 ) {
6062 self.manipulate_lines(cx, |lines| lines.sort())
6063 }
6064
6065 pub fn sort_lines_case_insensitive(
6066 &mut self,
6067 _: &SortLinesCaseInsensitive,
6068 cx: &mut ViewContext<Self>,
6069 ) {
6070 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6071 }
6072
6073 pub fn unique_lines_case_insensitive(
6074 &mut self,
6075 _: &UniqueLinesCaseInsensitive,
6076 cx: &mut ViewContext<Self>,
6077 ) {
6078 self.manipulate_lines(cx, |lines| {
6079 let mut seen = HashSet::default();
6080 lines.retain(|line| seen.insert(line.to_lowercase()));
6081 })
6082 }
6083
6084 pub fn unique_lines_case_sensitive(
6085 &mut self,
6086 _: &UniqueLinesCaseSensitive,
6087 cx: &mut ViewContext<Self>,
6088 ) {
6089 self.manipulate_lines(cx, |lines| {
6090 let mut seen = HashSet::default();
6091 lines.retain(|line| seen.insert(*line));
6092 })
6093 }
6094
6095 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6096 let mut revert_changes = HashMap::default();
6097 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6098 for hunk in hunks_for_rows(
6099 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6100 &multi_buffer_snapshot,
6101 ) {
6102 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6103 }
6104 if !revert_changes.is_empty() {
6105 self.transact(cx, |editor, cx| {
6106 editor.revert(revert_changes, cx);
6107 });
6108 }
6109 }
6110
6111 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6112 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6113 if !revert_changes.is_empty() {
6114 self.transact(cx, |editor, cx| {
6115 editor.revert(revert_changes, cx);
6116 });
6117 }
6118 }
6119
6120 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6121 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6122 let project_path = buffer.read(cx).project_path(cx)?;
6123 let project = self.project.as_ref()?.read(cx);
6124 let entry = project.entry_for_path(&project_path, cx)?;
6125 let abs_path = project.absolute_path(&project_path, cx)?;
6126 let parent = if entry.is_symlink {
6127 abs_path.canonicalize().ok()?
6128 } else {
6129 abs_path
6130 }
6131 .parent()?
6132 .to_path_buf();
6133 Some(parent)
6134 }) {
6135 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6136 }
6137 }
6138
6139 fn gather_revert_changes(
6140 &mut self,
6141 selections: &[Selection<Anchor>],
6142 cx: &mut ViewContext<'_, Editor>,
6143 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6144 let mut revert_changes = HashMap::default();
6145 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6146 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6147 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6148 }
6149 revert_changes
6150 }
6151
6152 pub fn prepare_revert_change(
6153 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6154 multi_buffer: &Model<MultiBuffer>,
6155 hunk: &DiffHunk<MultiBufferRow>,
6156 cx: &AppContext,
6157 ) -> Option<()> {
6158 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6159 let buffer = buffer.read(cx);
6160 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6161 let buffer_snapshot = buffer.snapshot();
6162 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6163 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6164 probe
6165 .0
6166 .start
6167 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6168 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6169 }) {
6170 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6171 Some(())
6172 } else {
6173 None
6174 }
6175 }
6176
6177 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6178 self.manipulate_lines(cx, |lines| lines.reverse())
6179 }
6180
6181 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6182 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6183 }
6184
6185 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6186 where
6187 Fn: FnMut(&mut Vec<&str>),
6188 {
6189 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6190 let buffer = self.buffer.read(cx).snapshot(cx);
6191
6192 let mut edits = Vec::new();
6193
6194 let selections = self.selections.all::<Point>(cx);
6195 let mut selections = selections.iter().peekable();
6196 let mut contiguous_row_selections = Vec::new();
6197 let mut new_selections = Vec::new();
6198 let mut added_lines = 0;
6199 let mut removed_lines = 0;
6200
6201 while let Some(selection) = selections.next() {
6202 let (start_row, end_row) = consume_contiguous_rows(
6203 &mut contiguous_row_selections,
6204 selection,
6205 &display_map,
6206 &mut selections,
6207 );
6208
6209 let start_point = Point::new(start_row.0, 0);
6210 let end_point = Point::new(
6211 end_row.previous_row().0,
6212 buffer.line_len(end_row.previous_row()),
6213 );
6214 let text = buffer
6215 .text_for_range(start_point..end_point)
6216 .collect::<String>();
6217
6218 let mut lines = text.split('\n').collect_vec();
6219
6220 let lines_before = lines.len();
6221 callback(&mut lines);
6222 let lines_after = lines.len();
6223
6224 edits.push((start_point..end_point, lines.join("\n")));
6225
6226 // Selections must change based on added and removed line count
6227 let start_row =
6228 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6229 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6230 new_selections.push(Selection {
6231 id: selection.id,
6232 start: start_row,
6233 end: end_row,
6234 goal: SelectionGoal::None,
6235 reversed: selection.reversed,
6236 });
6237
6238 if lines_after > lines_before {
6239 added_lines += lines_after - lines_before;
6240 } else if lines_before > lines_after {
6241 removed_lines += lines_before - lines_after;
6242 }
6243 }
6244
6245 self.transact(cx, |this, cx| {
6246 let buffer = this.buffer.update(cx, |buffer, cx| {
6247 buffer.edit(edits, None, cx);
6248 buffer.snapshot(cx)
6249 });
6250
6251 // Recalculate offsets on newly edited buffer
6252 let new_selections = new_selections
6253 .iter()
6254 .map(|s| {
6255 let start_point = Point::new(s.start.0, 0);
6256 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6257 Selection {
6258 id: s.id,
6259 start: buffer.point_to_offset(start_point),
6260 end: buffer.point_to_offset(end_point),
6261 goal: s.goal,
6262 reversed: s.reversed,
6263 }
6264 })
6265 .collect();
6266
6267 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6268 s.select(new_selections);
6269 });
6270
6271 this.request_autoscroll(Autoscroll::fit(), cx);
6272 });
6273 }
6274
6275 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6276 self.manipulate_text(cx, |text| text.to_uppercase())
6277 }
6278
6279 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6280 self.manipulate_text(cx, |text| text.to_lowercase())
6281 }
6282
6283 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6284 self.manipulate_text(cx, |text| {
6285 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6286 // https://github.com/rutrum/convert-case/issues/16
6287 text.split('\n')
6288 .map(|line| line.to_case(Case::Title))
6289 .join("\n")
6290 })
6291 }
6292
6293 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6294 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6295 }
6296
6297 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6298 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6299 }
6300
6301 pub fn convert_to_upper_camel_case(
6302 &mut self,
6303 _: &ConvertToUpperCamelCase,
6304 cx: &mut ViewContext<Self>,
6305 ) {
6306 self.manipulate_text(cx, |text| {
6307 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6308 // https://github.com/rutrum/convert-case/issues/16
6309 text.split('\n')
6310 .map(|line| line.to_case(Case::UpperCamel))
6311 .join("\n")
6312 })
6313 }
6314
6315 pub fn convert_to_lower_camel_case(
6316 &mut self,
6317 _: &ConvertToLowerCamelCase,
6318 cx: &mut ViewContext<Self>,
6319 ) {
6320 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6321 }
6322
6323 pub fn convert_to_opposite_case(
6324 &mut self,
6325 _: &ConvertToOppositeCase,
6326 cx: &mut ViewContext<Self>,
6327 ) {
6328 self.manipulate_text(cx, |text| {
6329 text.chars()
6330 .fold(String::with_capacity(text.len()), |mut t, c| {
6331 if c.is_uppercase() {
6332 t.extend(c.to_lowercase());
6333 } else {
6334 t.extend(c.to_uppercase());
6335 }
6336 t
6337 })
6338 })
6339 }
6340
6341 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6342 where
6343 Fn: FnMut(&str) -> String,
6344 {
6345 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6346 let buffer = self.buffer.read(cx).snapshot(cx);
6347
6348 let mut new_selections = Vec::new();
6349 let mut edits = Vec::new();
6350 let mut selection_adjustment = 0i32;
6351
6352 for selection in self.selections.all::<usize>(cx) {
6353 let selection_is_empty = selection.is_empty();
6354
6355 let (start, end) = if selection_is_empty {
6356 let word_range = movement::surrounding_word(
6357 &display_map,
6358 selection.start.to_display_point(&display_map),
6359 );
6360 let start = word_range.start.to_offset(&display_map, Bias::Left);
6361 let end = word_range.end.to_offset(&display_map, Bias::Left);
6362 (start, end)
6363 } else {
6364 (selection.start, selection.end)
6365 };
6366
6367 let text = buffer.text_for_range(start..end).collect::<String>();
6368 let old_length = text.len() as i32;
6369 let text = callback(&text);
6370
6371 new_selections.push(Selection {
6372 start: (start as i32 - selection_adjustment) as usize,
6373 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6374 goal: SelectionGoal::None,
6375 ..selection
6376 });
6377
6378 selection_adjustment += old_length - text.len() as i32;
6379
6380 edits.push((start..end, text));
6381 }
6382
6383 self.transact(cx, |this, cx| {
6384 this.buffer.update(cx, |buffer, cx| {
6385 buffer.edit(edits, None, cx);
6386 });
6387
6388 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6389 s.select(new_selections);
6390 });
6391
6392 this.request_autoscroll(Autoscroll::fit(), cx);
6393 });
6394 }
6395
6396 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6397 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6398 let buffer = &display_map.buffer_snapshot;
6399 let selections = self.selections.all::<Point>(cx);
6400
6401 let mut edits = Vec::new();
6402 let mut selections_iter = selections.iter().peekable();
6403 while let Some(selection) = selections_iter.next() {
6404 // Avoid duplicating the same lines twice.
6405 let mut rows = selection.spanned_rows(false, &display_map);
6406
6407 while let Some(next_selection) = selections_iter.peek() {
6408 let next_rows = next_selection.spanned_rows(false, &display_map);
6409 if next_rows.start < rows.end {
6410 rows.end = next_rows.end;
6411 selections_iter.next().unwrap();
6412 } else {
6413 break;
6414 }
6415 }
6416
6417 // Copy the text from the selected row region and splice it either at the start
6418 // or end of the region.
6419 let start = Point::new(rows.start.0, 0);
6420 let end = Point::new(
6421 rows.end.previous_row().0,
6422 buffer.line_len(rows.end.previous_row()),
6423 );
6424 let text = buffer
6425 .text_for_range(start..end)
6426 .chain(Some("\n"))
6427 .collect::<String>();
6428 let insert_location = if upwards {
6429 Point::new(rows.end.0, 0)
6430 } else {
6431 start
6432 };
6433 edits.push((insert_location..insert_location, text));
6434 }
6435
6436 self.transact(cx, |this, cx| {
6437 this.buffer.update(cx, |buffer, cx| {
6438 buffer.edit(edits, None, cx);
6439 });
6440
6441 this.request_autoscroll(Autoscroll::fit(), cx);
6442 });
6443 }
6444
6445 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6446 self.duplicate_line(true, cx);
6447 }
6448
6449 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6450 self.duplicate_line(false, cx);
6451 }
6452
6453 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6454 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6455 let buffer = self.buffer.read(cx).snapshot(cx);
6456
6457 let mut edits = Vec::new();
6458 let mut unfold_ranges = Vec::new();
6459 let mut refold_ranges = Vec::new();
6460
6461 let selections = self.selections.all::<Point>(cx);
6462 let mut selections = selections.iter().peekable();
6463 let mut contiguous_row_selections = Vec::new();
6464 let mut new_selections = Vec::new();
6465
6466 while let Some(selection) = selections.next() {
6467 // Find all the selections that span a contiguous row range
6468 let (start_row, end_row) = consume_contiguous_rows(
6469 &mut contiguous_row_selections,
6470 selection,
6471 &display_map,
6472 &mut selections,
6473 );
6474
6475 // Move the text spanned by the row range to be before the line preceding the row range
6476 if start_row.0 > 0 {
6477 let range_to_move = Point::new(
6478 start_row.previous_row().0,
6479 buffer.line_len(start_row.previous_row()),
6480 )
6481 ..Point::new(
6482 end_row.previous_row().0,
6483 buffer.line_len(end_row.previous_row()),
6484 );
6485 let insertion_point = display_map
6486 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6487 .0;
6488
6489 // Don't move lines across excerpts
6490 if buffer
6491 .excerpt_boundaries_in_range((
6492 Bound::Excluded(insertion_point),
6493 Bound::Included(range_to_move.end),
6494 ))
6495 .next()
6496 .is_none()
6497 {
6498 let text = buffer
6499 .text_for_range(range_to_move.clone())
6500 .flat_map(|s| s.chars())
6501 .skip(1)
6502 .chain(['\n'])
6503 .collect::<String>();
6504
6505 edits.push((
6506 buffer.anchor_after(range_to_move.start)
6507 ..buffer.anchor_before(range_to_move.end),
6508 String::new(),
6509 ));
6510 let insertion_anchor = buffer.anchor_after(insertion_point);
6511 edits.push((insertion_anchor..insertion_anchor, text));
6512
6513 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6514
6515 // Move selections up
6516 new_selections.extend(contiguous_row_selections.drain(..).map(
6517 |mut selection| {
6518 selection.start.row -= row_delta;
6519 selection.end.row -= row_delta;
6520 selection
6521 },
6522 ));
6523
6524 // Move folds up
6525 unfold_ranges.push(range_to_move.clone());
6526 for fold in display_map.folds_in_range(
6527 buffer.anchor_before(range_to_move.start)
6528 ..buffer.anchor_after(range_to_move.end),
6529 ) {
6530 let mut start = fold.range.start.to_point(&buffer);
6531 let mut end = fold.range.end.to_point(&buffer);
6532 start.row -= row_delta;
6533 end.row -= row_delta;
6534 refold_ranges.push((start..end, fold.placeholder.clone()));
6535 }
6536 }
6537 }
6538
6539 // If we didn't move line(s), preserve the existing selections
6540 new_selections.append(&mut contiguous_row_selections);
6541 }
6542
6543 self.transact(cx, |this, cx| {
6544 this.unfold_ranges(unfold_ranges, true, true, cx);
6545 this.buffer.update(cx, |buffer, cx| {
6546 for (range, text) in edits {
6547 buffer.edit([(range, text)], None, cx);
6548 }
6549 });
6550 this.fold_ranges(refold_ranges, true, cx);
6551 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6552 s.select(new_selections);
6553 })
6554 });
6555 }
6556
6557 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6558 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6559 let buffer = self.buffer.read(cx).snapshot(cx);
6560
6561 let mut edits = Vec::new();
6562 let mut unfold_ranges = Vec::new();
6563 let mut refold_ranges = Vec::new();
6564
6565 let selections = self.selections.all::<Point>(cx);
6566 let mut selections = selections.iter().peekable();
6567 let mut contiguous_row_selections = Vec::new();
6568 let mut new_selections = Vec::new();
6569
6570 while let Some(selection) = selections.next() {
6571 // Find all the selections that span a contiguous row range
6572 let (start_row, end_row) = consume_contiguous_rows(
6573 &mut contiguous_row_selections,
6574 selection,
6575 &display_map,
6576 &mut selections,
6577 );
6578
6579 // Move the text spanned by the row range to be after the last line of the row range
6580 if end_row.0 <= buffer.max_point().row {
6581 let range_to_move =
6582 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6583 let insertion_point = display_map
6584 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6585 .0;
6586
6587 // Don't move lines across excerpt boundaries
6588 if buffer
6589 .excerpt_boundaries_in_range((
6590 Bound::Excluded(range_to_move.start),
6591 Bound::Included(insertion_point),
6592 ))
6593 .next()
6594 .is_none()
6595 {
6596 let mut text = String::from("\n");
6597 text.extend(buffer.text_for_range(range_to_move.clone()));
6598 text.pop(); // Drop trailing newline
6599 edits.push((
6600 buffer.anchor_after(range_to_move.start)
6601 ..buffer.anchor_before(range_to_move.end),
6602 String::new(),
6603 ));
6604 let insertion_anchor = buffer.anchor_after(insertion_point);
6605 edits.push((insertion_anchor..insertion_anchor, text));
6606
6607 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6608
6609 // Move selections down
6610 new_selections.extend(contiguous_row_selections.drain(..).map(
6611 |mut selection| {
6612 selection.start.row += row_delta;
6613 selection.end.row += row_delta;
6614 selection
6615 },
6616 ));
6617
6618 // Move folds down
6619 unfold_ranges.push(range_to_move.clone());
6620 for fold in display_map.folds_in_range(
6621 buffer.anchor_before(range_to_move.start)
6622 ..buffer.anchor_after(range_to_move.end),
6623 ) {
6624 let mut start = fold.range.start.to_point(&buffer);
6625 let mut end = fold.range.end.to_point(&buffer);
6626 start.row += row_delta;
6627 end.row += row_delta;
6628 refold_ranges.push((start..end, fold.placeholder.clone()));
6629 }
6630 }
6631 }
6632
6633 // If we didn't move line(s), preserve the existing selections
6634 new_selections.append(&mut contiguous_row_selections);
6635 }
6636
6637 self.transact(cx, |this, cx| {
6638 this.unfold_ranges(unfold_ranges, true, true, cx);
6639 this.buffer.update(cx, |buffer, cx| {
6640 for (range, text) in edits {
6641 buffer.edit([(range, text)], None, cx);
6642 }
6643 });
6644 this.fold_ranges(refold_ranges, true, cx);
6645 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6646 });
6647 }
6648
6649 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6650 let text_layout_details = &self.text_layout_details(cx);
6651 self.transact(cx, |this, cx| {
6652 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6653 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6654 let line_mode = s.line_mode;
6655 s.move_with(|display_map, selection| {
6656 if !selection.is_empty() || line_mode {
6657 return;
6658 }
6659
6660 let mut head = selection.head();
6661 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6662 if head.column() == display_map.line_len(head.row()) {
6663 transpose_offset = display_map
6664 .buffer_snapshot
6665 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6666 }
6667
6668 if transpose_offset == 0 {
6669 return;
6670 }
6671
6672 *head.column_mut() += 1;
6673 head = display_map.clip_point(head, Bias::Right);
6674 let goal = SelectionGoal::HorizontalPosition(
6675 display_map
6676 .x_for_display_point(head, text_layout_details)
6677 .into(),
6678 );
6679 selection.collapse_to(head, goal);
6680
6681 let transpose_start = display_map
6682 .buffer_snapshot
6683 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6684 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6685 let transpose_end = display_map
6686 .buffer_snapshot
6687 .clip_offset(transpose_offset + 1, Bias::Right);
6688 if let Some(ch) =
6689 display_map.buffer_snapshot.chars_at(transpose_start).next()
6690 {
6691 edits.push((transpose_start..transpose_offset, String::new()));
6692 edits.push((transpose_end..transpose_end, ch.to_string()));
6693 }
6694 }
6695 });
6696 edits
6697 });
6698 this.buffer
6699 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6700 let selections = this.selections.all::<usize>(cx);
6701 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6702 s.select(selections);
6703 });
6704 });
6705 }
6706
6707 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6708 let buffer = self.buffer.read(cx).snapshot(cx);
6709 let selections = self.selections.all::<Point>(cx);
6710 let mut selections = selections.iter().peekable();
6711
6712 let mut edits = Vec::new();
6713 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6714
6715 while let Some(selection) = selections.next() {
6716 let mut start_row = selection.start.row;
6717 let mut end_row = selection.end.row;
6718
6719 // Skip selections that overlap with a range that has already been rewrapped.
6720 let selection_range = start_row..end_row;
6721 if rewrapped_row_ranges
6722 .iter()
6723 .any(|range| range.overlaps(&selection_range))
6724 {
6725 continue;
6726 }
6727
6728 let mut should_rewrap = false;
6729
6730 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6731 match language_scope.language_name().0.as_ref() {
6732 "Markdown" | "Plain Text" => {
6733 should_rewrap = true;
6734 }
6735 _ => {}
6736 }
6737 }
6738
6739 let row = selection.head().row;
6740 let indent_size = buffer.indent_size_for_line(MultiBufferRow(row));
6741 let indent_end = Point::new(row, indent_size.len);
6742
6743 let mut line_prefix = indent_size.chars().collect::<String>();
6744
6745 if let Some(comment_prefix) =
6746 buffer
6747 .language_scope_at(selection.head())
6748 .and_then(|language| {
6749 language
6750 .line_comment_prefixes()
6751 .iter()
6752 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6753 .cloned()
6754 })
6755 {
6756 line_prefix.push_str(&comment_prefix);
6757 should_rewrap = true;
6758 }
6759
6760 if selection.is_empty() {
6761 'expand_upwards: while start_row > 0 {
6762 let prev_row = start_row - 1;
6763 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6764 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6765 {
6766 start_row = prev_row;
6767 } else {
6768 break 'expand_upwards;
6769 }
6770 }
6771
6772 'expand_downwards: while end_row < buffer.max_point().row {
6773 let next_row = end_row + 1;
6774 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6775 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6776 {
6777 end_row = next_row;
6778 } else {
6779 break 'expand_downwards;
6780 }
6781 }
6782 }
6783
6784 if !should_rewrap {
6785 continue;
6786 }
6787
6788 let start = Point::new(start_row, 0);
6789 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6790 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6791 let unwrapped_text = selection_text
6792 .lines()
6793 .map(|line| line.strip_prefix(&line_prefix).unwrap())
6794 .join(" ");
6795 let wrap_column = buffer
6796 .settings_at(Point::new(start_row, 0), cx)
6797 .preferred_line_length as usize;
6798 let mut wrapped_text = String::new();
6799 let mut current_line = line_prefix.clone();
6800 for word in unwrapped_text.split_whitespace() {
6801 if current_line.len() + word.len() >= wrap_column {
6802 wrapped_text.push_str(¤t_line);
6803 wrapped_text.push('\n');
6804 current_line.truncate(line_prefix.len());
6805 }
6806
6807 if current_line.len() > line_prefix.len() {
6808 current_line.push(' ');
6809 }
6810
6811 current_line.push_str(word);
6812 }
6813
6814 if !current_line.is_empty() {
6815 wrapped_text.push_str(¤t_line);
6816 }
6817
6818 let diff = TextDiff::from_lines(&selection_text, &wrapped_text);
6819 let mut offset = start.to_offset(&buffer);
6820 let mut moved_since_edit = true;
6821
6822 for change in diff.iter_all_changes() {
6823 let value = change.value();
6824 match change.tag() {
6825 ChangeTag::Equal => {
6826 offset += value.len();
6827 moved_since_edit = true;
6828 }
6829 ChangeTag::Delete => {
6830 let start = buffer.anchor_after(offset);
6831 let end = buffer.anchor_before(offset + value.len());
6832
6833 if moved_since_edit {
6834 edits.push((start..end, String::new()));
6835 } else {
6836 edits.last_mut().unwrap().0.end = end;
6837 }
6838
6839 offset += value.len();
6840 moved_since_edit = false;
6841 }
6842 ChangeTag::Insert => {
6843 if moved_since_edit {
6844 let anchor = buffer.anchor_after(offset);
6845 edits.push((anchor..anchor, value.to_string()));
6846 } else {
6847 edits.last_mut().unwrap().1.push_str(value);
6848 }
6849
6850 moved_since_edit = false;
6851 }
6852 }
6853 }
6854
6855 rewrapped_row_ranges.push(start_row..=end_row);
6856 }
6857
6858 self.buffer
6859 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6860 }
6861
6862 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6863 let mut text = String::new();
6864 let buffer = self.buffer.read(cx).snapshot(cx);
6865 let mut selections = self.selections.all::<Point>(cx);
6866 let mut clipboard_selections = Vec::with_capacity(selections.len());
6867 {
6868 let max_point = buffer.max_point();
6869 let mut is_first = true;
6870 for selection in &mut selections {
6871 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6872 if is_entire_line {
6873 selection.start = Point::new(selection.start.row, 0);
6874 if !selection.is_empty() && selection.end.column == 0 {
6875 selection.end = cmp::min(max_point, selection.end);
6876 } else {
6877 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6878 }
6879 selection.goal = SelectionGoal::None;
6880 }
6881 if is_first {
6882 is_first = false;
6883 } else {
6884 text += "\n";
6885 }
6886 let mut len = 0;
6887 for chunk in buffer.text_for_range(selection.start..selection.end) {
6888 text.push_str(chunk);
6889 len += chunk.len();
6890 }
6891 clipboard_selections.push(ClipboardSelection {
6892 len,
6893 is_entire_line,
6894 first_line_indent: buffer
6895 .indent_size_for_line(MultiBufferRow(selection.start.row))
6896 .len,
6897 });
6898 }
6899 }
6900
6901 self.transact(cx, |this, cx| {
6902 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6903 s.select(selections);
6904 });
6905 this.insert("", cx);
6906 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6907 text,
6908 clipboard_selections,
6909 ));
6910 });
6911 }
6912
6913 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6914 let selections = self.selections.all::<Point>(cx);
6915 let buffer = self.buffer.read(cx).read(cx);
6916 let mut text = String::new();
6917
6918 let mut clipboard_selections = Vec::with_capacity(selections.len());
6919 {
6920 let max_point = buffer.max_point();
6921 let mut is_first = true;
6922 for selection in selections.iter() {
6923 let mut start = selection.start;
6924 let mut end = selection.end;
6925 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6926 if is_entire_line {
6927 start = Point::new(start.row, 0);
6928 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6929 }
6930 if is_first {
6931 is_first = false;
6932 } else {
6933 text += "\n";
6934 }
6935 let mut len = 0;
6936 for chunk in buffer.text_for_range(start..end) {
6937 text.push_str(chunk);
6938 len += chunk.len();
6939 }
6940 clipboard_selections.push(ClipboardSelection {
6941 len,
6942 is_entire_line,
6943 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6944 });
6945 }
6946 }
6947
6948 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6949 text,
6950 clipboard_selections,
6951 ));
6952 }
6953
6954 pub fn do_paste(
6955 &mut self,
6956 text: &String,
6957 clipboard_selections: Option<Vec<ClipboardSelection>>,
6958 handle_entire_lines: bool,
6959 cx: &mut ViewContext<Self>,
6960 ) {
6961 if self.read_only(cx) {
6962 return;
6963 }
6964
6965 let clipboard_text = Cow::Borrowed(text);
6966
6967 self.transact(cx, |this, cx| {
6968 if let Some(mut clipboard_selections) = clipboard_selections {
6969 let old_selections = this.selections.all::<usize>(cx);
6970 let all_selections_were_entire_line =
6971 clipboard_selections.iter().all(|s| s.is_entire_line);
6972 let first_selection_indent_column =
6973 clipboard_selections.first().map(|s| s.first_line_indent);
6974 if clipboard_selections.len() != old_selections.len() {
6975 clipboard_selections.drain(..);
6976 }
6977
6978 this.buffer.update(cx, |buffer, cx| {
6979 let snapshot = buffer.read(cx);
6980 let mut start_offset = 0;
6981 let mut edits = Vec::new();
6982 let mut original_indent_columns = Vec::new();
6983 for (ix, selection) in old_selections.iter().enumerate() {
6984 let to_insert;
6985 let entire_line;
6986 let original_indent_column;
6987 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6988 let end_offset = start_offset + clipboard_selection.len;
6989 to_insert = &clipboard_text[start_offset..end_offset];
6990 entire_line = clipboard_selection.is_entire_line;
6991 start_offset = end_offset + 1;
6992 original_indent_column = Some(clipboard_selection.first_line_indent);
6993 } else {
6994 to_insert = clipboard_text.as_str();
6995 entire_line = all_selections_were_entire_line;
6996 original_indent_column = first_selection_indent_column
6997 }
6998
6999 // If the corresponding selection was empty when this slice of the
7000 // clipboard text was written, then the entire line containing the
7001 // selection was copied. If this selection is also currently empty,
7002 // then paste the line before the current line of the buffer.
7003 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7004 let column = selection.start.to_point(&snapshot).column as usize;
7005 let line_start = selection.start - column;
7006 line_start..line_start
7007 } else {
7008 selection.range()
7009 };
7010
7011 edits.push((range, to_insert));
7012 original_indent_columns.extend(original_indent_column);
7013 }
7014 drop(snapshot);
7015
7016 buffer.edit(
7017 edits,
7018 Some(AutoindentMode::Block {
7019 original_indent_columns,
7020 }),
7021 cx,
7022 );
7023 });
7024
7025 let selections = this.selections.all::<usize>(cx);
7026 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7027 } else {
7028 this.insert(&clipboard_text, cx);
7029 }
7030 });
7031 }
7032
7033 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7034 if let Some(item) = cx.read_from_clipboard() {
7035 let entries = item.entries();
7036
7037 match entries.first() {
7038 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7039 // of all the pasted entries.
7040 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7041 .do_paste(
7042 clipboard_string.text(),
7043 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7044 true,
7045 cx,
7046 ),
7047 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7048 }
7049 }
7050 }
7051
7052 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7053 if self.read_only(cx) {
7054 return;
7055 }
7056
7057 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7058 if let Some((selections, _)) =
7059 self.selection_history.transaction(transaction_id).cloned()
7060 {
7061 self.change_selections(None, cx, |s| {
7062 s.select_anchors(selections.to_vec());
7063 });
7064 }
7065 self.request_autoscroll(Autoscroll::fit(), cx);
7066 self.unmark_text(cx);
7067 self.refresh_inline_completion(true, false, cx);
7068 cx.emit(EditorEvent::Edited { transaction_id });
7069 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7070 }
7071 }
7072
7073 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7074 if self.read_only(cx) {
7075 return;
7076 }
7077
7078 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7079 if let Some((_, Some(selections))) =
7080 self.selection_history.transaction(transaction_id).cloned()
7081 {
7082 self.change_selections(None, cx, |s| {
7083 s.select_anchors(selections.to_vec());
7084 });
7085 }
7086 self.request_autoscroll(Autoscroll::fit(), cx);
7087 self.unmark_text(cx);
7088 self.refresh_inline_completion(true, false, cx);
7089 cx.emit(EditorEvent::Edited { transaction_id });
7090 }
7091 }
7092
7093 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7094 self.buffer
7095 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7096 }
7097
7098 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7099 self.buffer
7100 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7101 }
7102
7103 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7104 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7105 let line_mode = s.line_mode;
7106 s.move_with(|map, selection| {
7107 let cursor = if selection.is_empty() && !line_mode {
7108 movement::left(map, selection.start)
7109 } else {
7110 selection.start
7111 };
7112 selection.collapse_to(cursor, SelectionGoal::None);
7113 });
7114 })
7115 }
7116
7117 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7118 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7119 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7120 })
7121 }
7122
7123 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7124 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7125 let line_mode = s.line_mode;
7126 s.move_with(|map, selection| {
7127 let cursor = if selection.is_empty() && !line_mode {
7128 movement::right(map, selection.end)
7129 } else {
7130 selection.end
7131 };
7132 selection.collapse_to(cursor, SelectionGoal::None)
7133 });
7134 })
7135 }
7136
7137 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7138 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7139 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7140 })
7141 }
7142
7143 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7144 if self.take_rename(true, cx).is_some() {
7145 return;
7146 }
7147
7148 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7149 cx.propagate();
7150 return;
7151 }
7152
7153 let text_layout_details = &self.text_layout_details(cx);
7154 let selection_count = self.selections.count();
7155 let first_selection = self.selections.first_anchor();
7156
7157 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7158 let line_mode = s.line_mode;
7159 s.move_with(|map, selection| {
7160 if !selection.is_empty() && !line_mode {
7161 selection.goal = SelectionGoal::None;
7162 }
7163 let (cursor, goal) = movement::up(
7164 map,
7165 selection.start,
7166 selection.goal,
7167 false,
7168 text_layout_details,
7169 );
7170 selection.collapse_to(cursor, goal);
7171 });
7172 });
7173
7174 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7175 {
7176 cx.propagate();
7177 }
7178 }
7179
7180 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7181 if self.take_rename(true, cx).is_some() {
7182 return;
7183 }
7184
7185 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7186 cx.propagate();
7187 return;
7188 }
7189
7190 let text_layout_details = &self.text_layout_details(cx);
7191
7192 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7193 let line_mode = s.line_mode;
7194 s.move_with(|map, selection| {
7195 if !selection.is_empty() && !line_mode {
7196 selection.goal = SelectionGoal::None;
7197 }
7198 let (cursor, goal) = movement::up_by_rows(
7199 map,
7200 selection.start,
7201 action.lines,
7202 selection.goal,
7203 false,
7204 text_layout_details,
7205 );
7206 selection.collapse_to(cursor, goal);
7207 });
7208 })
7209 }
7210
7211 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7212 if self.take_rename(true, cx).is_some() {
7213 return;
7214 }
7215
7216 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7217 cx.propagate();
7218 return;
7219 }
7220
7221 let text_layout_details = &self.text_layout_details(cx);
7222
7223 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7224 let line_mode = s.line_mode;
7225 s.move_with(|map, selection| {
7226 if !selection.is_empty() && !line_mode {
7227 selection.goal = SelectionGoal::None;
7228 }
7229 let (cursor, goal) = movement::down_by_rows(
7230 map,
7231 selection.start,
7232 action.lines,
7233 selection.goal,
7234 false,
7235 text_layout_details,
7236 );
7237 selection.collapse_to(cursor, goal);
7238 });
7239 })
7240 }
7241
7242 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7243 let text_layout_details = &self.text_layout_details(cx);
7244 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7245 s.move_heads_with(|map, head, goal| {
7246 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7247 })
7248 })
7249 }
7250
7251 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7252 let text_layout_details = &self.text_layout_details(cx);
7253 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7254 s.move_heads_with(|map, head, goal| {
7255 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7256 })
7257 })
7258 }
7259
7260 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7261 let Some(row_count) = self.visible_row_count() else {
7262 return;
7263 };
7264
7265 let text_layout_details = &self.text_layout_details(cx);
7266
7267 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7268 s.move_heads_with(|map, head, goal| {
7269 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7270 })
7271 })
7272 }
7273
7274 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7275 if self.take_rename(true, cx).is_some() {
7276 return;
7277 }
7278
7279 if self
7280 .context_menu
7281 .write()
7282 .as_mut()
7283 .map(|menu| menu.select_first(self.project.as_ref(), cx))
7284 .unwrap_or(false)
7285 {
7286 return;
7287 }
7288
7289 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7290 cx.propagate();
7291 return;
7292 }
7293
7294 let Some(row_count) = self.visible_row_count() else {
7295 return;
7296 };
7297
7298 let autoscroll = if action.center_cursor {
7299 Autoscroll::center()
7300 } else {
7301 Autoscroll::fit()
7302 };
7303
7304 let text_layout_details = &self.text_layout_details(cx);
7305
7306 self.change_selections(Some(autoscroll), cx, |s| {
7307 let line_mode = s.line_mode;
7308 s.move_with(|map, selection| {
7309 if !selection.is_empty() && !line_mode {
7310 selection.goal = SelectionGoal::None;
7311 }
7312 let (cursor, goal) = movement::up_by_rows(
7313 map,
7314 selection.end,
7315 row_count,
7316 selection.goal,
7317 false,
7318 text_layout_details,
7319 );
7320 selection.collapse_to(cursor, goal);
7321 });
7322 });
7323 }
7324
7325 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7326 let text_layout_details = &self.text_layout_details(cx);
7327 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7328 s.move_heads_with(|map, head, goal| {
7329 movement::up(map, head, goal, false, text_layout_details)
7330 })
7331 })
7332 }
7333
7334 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7335 self.take_rename(true, cx);
7336
7337 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7338 cx.propagate();
7339 return;
7340 }
7341
7342 let text_layout_details = &self.text_layout_details(cx);
7343 let selection_count = self.selections.count();
7344 let first_selection = self.selections.first_anchor();
7345
7346 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7347 let line_mode = s.line_mode;
7348 s.move_with(|map, selection| {
7349 if !selection.is_empty() && !line_mode {
7350 selection.goal = SelectionGoal::None;
7351 }
7352 let (cursor, goal) = movement::down(
7353 map,
7354 selection.end,
7355 selection.goal,
7356 false,
7357 text_layout_details,
7358 );
7359 selection.collapse_to(cursor, goal);
7360 });
7361 });
7362
7363 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7364 {
7365 cx.propagate();
7366 }
7367 }
7368
7369 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7370 let Some(row_count) = self.visible_row_count() else {
7371 return;
7372 };
7373
7374 let text_layout_details = &self.text_layout_details(cx);
7375
7376 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7377 s.move_heads_with(|map, head, goal| {
7378 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7379 })
7380 })
7381 }
7382
7383 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7384 if self.take_rename(true, cx).is_some() {
7385 return;
7386 }
7387
7388 if self
7389 .context_menu
7390 .write()
7391 .as_mut()
7392 .map(|menu| menu.select_last(self.project.as_ref(), cx))
7393 .unwrap_or(false)
7394 {
7395 return;
7396 }
7397
7398 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7399 cx.propagate();
7400 return;
7401 }
7402
7403 let Some(row_count) = self.visible_row_count() else {
7404 return;
7405 };
7406
7407 let autoscroll = if action.center_cursor {
7408 Autoscroll::center()
7409 } else {
7410 Autoscroll::fit()
7411 };
7412
7413 let text_layout_details = &self.text_layout_details(cx);
7414 self.change_selections(Some(autoscroll), cx, |s| {
7415 let line_mode = s.line_mode;
7416 s.move_with(|map, selection| {
7417 if !selection.is_empty() && !line_mode {
7418 selection.goal = SelectionGoal::None;
7419 }
7420 let (cursor, goal) = movement::down_by_rows(
7421 map,
7422 selection.end,
7423 row_count,
7424 selection.goal,
7425 false,
7426 text_layout_details,
7427 );
7428 selection.collapse_to(cursor, goal);
7429 });
7430 });
7431 }
7432
7433 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7434 let text_layout_details = &self.text_layout_details(cx);
7435 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7436 s.move_heads_with(|map, head, goal| {
7437 movement::down(map, head, goal, false, text_layout_details)
7438 })
7439 });
7440 }
7441
7442 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7443 if let Some(context_menu) = self.context_menu.write().as_mut() {
7444 context_menu.select_first(self.project.as_ref(), cx);
7445 }
7446 }
7447
7448 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7449 if let Some(context_menu) = self.context_menu.write().as_mut() {
7450 context_menu.select_prev(self.project.as_ref(), cx);
7451 }
7452 }
7453
7454 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7455 if let Some(context_menu) = self.context_menu.write().as_mut() {
7456 context_menu.select_next(self.project.as_ref(), cx);
7457 }
7458 }
7459
7460 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7461 if let Some(context_menu) = self.context_menu.write().as_mut() {
7462 context_menu.select_last(self.project.as_ref(), cx);
7463 }
7464 }
7465
7466 pub fn move_to_previous_word_start(
7467 &mut self,
7468 _: &MoveToPreviousWordStart,
7469 cx: &mut ViewContext<Self>,
7470 ) {
7471 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7472 s.move_cursors_with(|map, head, _| {
7473 (
7474 movement::previous_word_start(map, head),
7475 SelectionGoal::None,
7476 )
7477 });
7478 })
7479 }
7480
7481 pub fn move_to_previous_subword_start(
7482 &mut self,
7483 _: &MoveToPreviousSubwordStart,
7484 cx: &mut ViewContext<Self>,
7485 ) {
7486 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7487 s.move_cursors_with(|map, head, _| {
7488 (
7489 movement::previous_subword_start(map, head),
7490 SelectionGoal::None,
7491 )
7492 });
7493 })
7494 }
7495
7496 pub fn select_to_previous_word_start(
7497 &mut self,
7498 _: &SelectToPreviousWordStart,
7499 cx: &mut ViewContext<Self>,
7500 ) {
7501 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7502 s.move_heads_with(|map, head, _| {
7503 (
7504 movement::previous_word_start(map, head),
7505 SelectionGoal::None,
7506 )
7507 });
7508 })
7509 }
7510
7511 pub fn select_to_previous_subword_start(
7512 &mut self,
7513 _: &SelectToPreviousSubwordStart,
7514 cx: &mut ViewContext<Self>,
7515 ) {
7516 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7517 s.move_heads_with(|map, head, _| {
7518 (
7519 movement::previous_subword_start(map, head),
7520 SelectionGoal::None,
7521 )
7522 });
7523 })
7524 }
7525
7526 pub fn delete_to_previous_word_start(
7527 &mut self,
7528 action: &DeleteToPreviousWordStart,
7529 cx: &mut ViewContext<Self>,
7530 ) {
7531 self.transact(cx, |this, cx| {
7532 this.select_autoclose_pair(cx);
7533 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7534 let line_mode = s.line_mode;
7535 s.move_with(|map, selection| {
7536 if selection.is_empty() && !line_mode {
7537 let cursor = if action.ignore_newlines {
7538 movement::previous_word_start(map, selection.head())
7539 } else {
7540 movement::previous_word_start_or_newline(map, selection.head())
7541 };
7542 selection.set_head(cursor, SelectionGoal::None);
7543 }
7544 });
7545 });
7546 this.insert("", cx);
7547 });
7548 }
7549
7550 pub fn delete_to_previous_subword_start(
7551 &mut self,
7552 _: &DeleteToPreviousSubwordStart,
7553 cx: &mut ViewContext<Self>,
7554 ) {
7555 self.transact(cx, |this, cx| {
7556 this.select_autoclose_pair(cx);
7557 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7558 let line_mode = s.line_mode;
7559 s.move_with(|map, selection| {
7560 if selection.is_empty() && !line_mode {
7561 let cursor = movement::previous_subword_start(map, selection.head());
7562 selection.set_head(cursor, SelectionGoal::None);
7563 }
7564 });
7565 });
7566 this.insert("", cx);
7567 });
7568 }
7569
7570 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7571 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7572 s.move_cursors_with(|map, head, _| {
7573 (movement::next_word_end(map, head), SelectionGoal::None)
7574 });
7575 })
7576 }
7577
7578 pub fn move_to_next_subword_end(
7579 &mut self,
7580 _: &MoveToNextSubwordEnd,
7581 cx: &mut ViewContext<Self>,
7582 ) {
7583 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7584 s.move_cursors_with(|map, head, _| {
7585 (movement::next_subword_end(map, head), SelectionGoal::None)
7586 });
7587 })
7588 }
7589
7590 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7591 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7592 s.move_heads_with(|map, head, _| {
7593 (movement::next_word_end(map, head), SelectionGoal::None)
7594 });
7595 })
7596 }
7597
7598 pub fn select_to_next_subword_end(
7599 &mut self,
7600 _: &SelectToNextSubwordEnd,
7601 cx: &mut ViewContext<Self>,
7602 ) {
7603 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7604 s.move_heads_with(|map, head, _| {
7605 (movement::next_subword_end(map, head), SelectionGoal::None)
7606 });
7607 })
7608 }
7609
7610 pub fn delete_to_next_word_end(
7611 &mut self,
7612 action: &DeleteToNextWordEnd,
7613 cx: &mut ViewContext<Self>,
7614 ) {
7615 self.transact(cx, |this, cx| {
7616 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7617 let line_mode = s.line_mode;
7618 s.move_with(|map, selection| {
7619 if selection.is_empty() && !line_mode {
7620 let cursor = if action.ignore_newlines {
7621 movement::next_word_end(map, selection.head())
7622 } else {
7623 movement::next_word_end_or_newline(map, selection.head())
7624 };
7625 selection.set_head(cursor, SelectionGoal::None);
7626 }
7627 });
7628 });
7629 this.insert("", cx);
7630 });
7631 }
7632
7633 pub fn delete_to_next_subword_end(
7634 &mut self,
7635 _: &DeleteToNextSubwordEnd,
7636 cx: &mut ViewContext<Self>,
7637 ) {
7638 self.transact(cx, |this, cx| {
7639 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7640 s.move_with(|map, selection| {
7641 if selection.is_empty() {
7642 let cursor = movement::next_subword_end(map, selection.head());
7643 selection.set_head(cursor, SelectionGoal::None);
7644 }
7645 });
7646 });
7647 this.insert("", cx);
7648 });
7649 }
7650
7651 pub fn move_to_beginning_of_line(
7652 &mut self,
7653 action: &MoveToBeginningOfLine,
7654 cx: &mut ViewContext<Self>,
7655 ) {
7656 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7657 s.move_cursors_with(|map, head, _| {
7658 (
7659 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7660 SelectionGoal::None,
7661 )
7662 });
7663 })
7664 }
7665
7666 pub fn select_to_beginning_of_line(
7667 &mut self,
7668 action: &SelectToBeginningOfLine,
7669 cx: &mut ViewContext<Self>,
7670 ) {
7671 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7672 s.move_heads_with(|map, head, _| {
7673 (
7674 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7675 SelectionGoal::None,
7676 )
7677 });
7678 });
7679 }
7680
7681 pub fn delete_to_beginning_of_line(
7682 &mut self,
7683 _: &DeleteToBeginningOfLine,
7684 cx: &mut ViewContext<Self>,
7685 ) {
7686 self.transact(cx, |this, cx| {
7687 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7688 s.move_with(|_, selection| {
7689 selection.reversed = true;
7690 });
7691 });
7692
7693 this.select_to_beginning_of_line(
7694 &SelectToBeginningOfLine {
7695 stop_at_soft_wraps: false,
7696 },
7697 cx,
7698 );
7699 this.backspace(&Backspace, cx);
7700 });
7701 }
7702
7703 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7704 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7705 s.move_cursors_with(|map, head, _| {
7706 (
7707 movement::line_end(map, head, action.stop_at_soft_wraps),
7708 SelectionGoal::None,
7709 )
7710 });
7711 })
7712 }
7713
7714 pub fn select_to_end_of_line(
7715 &mut self,
7716 action: &SelectToEndOfLine,
7717 cx: &mut ViewContext<Self>,
7718 ) {
7719 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7720 s.move_heads_with(|map, head, _| {
7721 (
7722 movement::line_end(map, head, action.stop_at_soft_wraps),
7723 SelectionGoal::None,
7724 )
7725 });
7726 })
7727 }
7728
7729 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7730 self.transact(cx, |this, cx| {
7731 this.select_to_end_of_line(
7732 &SelectToEndOfLine {
7733 stop_at_soft_wraps: false,
7734 },
7735 cx,
7736 );
7737 this.delete(&Delete, cx);
7738 });
7739 }
7740
7741 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7742 self.transact(cx, |this, cx| {
7743 this.select_to_end_of_line(
7744 &SelectToEndOfLine {
7745 stop_at_soft_wraps: false,
7746 },
7747 cx,
7748 );
7749 this.cut(&Cut, cx);
7750 });
7751 }
7752
7753 pub fn move_to_start_of_paragraph(
7754 &mut self,
7755 _: &MoveToStartOfParagraph,
7756 cx: &mut ViewContext<Self>,
7757 ) {
7758 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7759 cx.propagate();
7760 return;
7761 }
7762
7763 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7764 s.move_with(|map, selection| {
7765 selection.collapse_to(
7766 movement::start_of_paragraph(map, selection.head(), 1),
7767 SelectionGoal::None,
7768 )
7769 });
7770 })
7771 }
7772
7773 pub fn move_to_end_of_paragraph(
7774 &mut self,
7775 _: &MoveToEndOfParagraph,
7776 cx: &mut ViewContext<Self>,
7777 ) {
7778 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7779 cx.propagate();
7780 return;
7781 }
7782
7783 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7784 s.move_with(|map, selection| {
7785 selection.collapse_to(
7786 movement::end_of_paragraph(map, selection.head(), 1),
7787 SelectionGoal::None,
7788 )
7789 });
7790 })
7791 }
7792
7793 pub fn select_to_start_of_paragraph(
7794 &mut self,
7795 _: &SelectToStartOfParagraph,
7796 cx: &mut ViewContext<Self>,
7797 ) {
7798 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7799 cx.propagate();
7800 return;
7801 }
7802
7803 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7804 s.move_heads_with(|map, head, _| {
7805 (
7806 movement::start_of_paragraph(map, head, 1),
7807 SelectionGoal::None,
7808 )
7809 });
7810 })
7811 }
7812
7813 pub fn select_to_end_of_paragraph(
7814 &mut self,
7815 _: &SelectToEndOfParagraph,
7816 cx: &mut ViewContext<Self>,
7817 ) {
7818 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7819 cx.propagate();
7820 return;
7821 }
7822
7823 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7824 s.move_heads_with(|map, head, _| {
7825 (
7826 movement::end_of_paragraph(map, head, 1),
7827 SelectionGoal::None,
7828 )
7829 });
7830 })
7831 }
7832
7833 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7834 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7835 cx.propagate();
7836 return;
7837 }
7838
7839 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7840 s.select_ranges(vec![0..0]);
7841 });
7842 }
7843
7844 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7845 let mut selection = self.selections.last::<Point>(cx);
7846 selection.set_head(Point::zero(), SelectionGoal::None);
7847
7848 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7849 s.select(vec![selection]);
7850 });
7851 }
7852
7853 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7854 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7855 cx.propagate();
7856 return;
7857 }
7858
7859 let cursor = self.buffer.read(cx).read(cx).len();
7860 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7861 s.select_ranges(vec![cursor..cursor])
7862 });
7863 }
7864
7865 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7866 self.nav_history = nav_history;
7867 }
7868
7869 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7870 self.nav_history.as_ref()
7871 }
7872
7873 fn push_to_nav_history(
7874 &mut self,
7875 cursor_anchor: Anchor,
7876 new_position: Option<Point>,
7877 cx: &mut ViewContext<Self>,
7878 ) {
7879 if let Some(nav_history) = self.nav_history.as_mut() {
7880 let buffer = self.buffer.read(cx).read(cx);
7881 let cursor_position = cursor_anchor.to_point(&buffer);
7882 let scroll_state = self.scroll_manager.anchor();
7883 let scroll_top_row = scroll_state.top_row(&buffer);
7884 drop(buffer);
7885
7886 if let Some(new_position) = new_position {
7887 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7888 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7889 return;
7890 }
7891 }
7892
7893 nav_history.push(
7894 Some(NavigationData {
7895 cursor_anchor,
7896 cursor_position,
7897 scroll_anchor: scroll_state,
7898 scroll_top_row,
7899 }),
7900 cx,
7901 );
7902 }
7903 }
7904
7905 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7906 let buffer = self.buffer.read(cx).snapshot(cx);
7907 let mut selection = self.selections.first::<usize>(cx);
7908 selection.set_head(buffer.len(), SelectionGoal::None);
7909 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7910 s.select(vec![selection]);
7911 });
7912 }
7913
7914 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7915 let end = self.buffer.read(cx).read(cx).len();
7916 self.change_selections(None, cx, |s| {
7917 s.select_ranges(vec![0..end]);
7918 });
7919 }
7920
7921 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7922 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7923 let mut selections = self.selections.all::<Point>(cx);
7924 let max_point = display_map.buffer_snapshot.max_point();
7925 for selection in &mut selections {
7926 let rows = selection.spanned_rows(true, &display_map);
7927 selection.start = Point::new(rows.start.0, 0);
7928 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7929 selection.reversed = false;
7930 }
7931 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7932 s.select(selections);
7933 });
7934 }
7935
7936 pub fn split_selection_into_lines(
7937 &mut self,
7938 _: &SplitSelectionIntoLines,
7939 cx: &mut ViewContext<Self>,
7940 ) {
7941 let mut to_unfold = Vec::new();
7942 let mut new_selection_ranges = Vec::new();
7943 {
7944 let selections = self.selections.all::<Point>(cx);
7945 let buffer = self.buffer.read(cx).read(cx);
7946 for selection in selections {
7947 for row in selection.start.row..selection.end.row {
7948 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7949 new_selection_ranges.push(cursor..cursor);
7950 }
7951 new_selection_ranges.push(selection.end..selection.end);
7952 to_unfold.push(selection.start..selection.end);
7953 }
7954 }
7955 self.unfold_ranges(to_unfold, true, true, cx);
7956 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7957 s.select_ranges(new_selection_ranges);
7958 });
7959 }
7960
7961 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7962 self.add_selection(true, cx);
7963 }
7964
7965 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7966 self.add_selection(false, cx);
7967 }
7968
7969 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7970 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7971 let mut selections = self.selections.all::<Point>(cx);
7972 let text_layout_details = self.text_layout_details(cx);
7973 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7974 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7975 let range = oldest_selection.display_range(&display_map).sorted();
7976
7977 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7978 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7979 let positions = start_x.min(end_x)..start_x.max(end_x);
7980
7981 selections.clear();
7982 let mut stack = Vec::new();
7983 for row in range.start.row().0..=range.end.row().0 {
7984 if let Some(selection) = self.selections.build_columnar_selection(
7985 &display_map,
7986 DisplayRow(row),
7987 &positions,
7988 oldest_selection.reversed,
7989 &text_layout_details,
7990 ) {
7991 stack.push(selection.id);
7992 selections.push(selection);
7993 }
7994 }
7995
7996 if above {
7997 stack.reverse();
7998 }
7999
8000 AddSelectionsState { above, stack }
8001 });
8002
8003 let last_added_selection = *state.stack.last().unwrap();
8004 let mut new_selections = Vec::new();
8005 if above == state.above {
8006 let end_row = if above {
8007 DisplayRow(0)
8008 } else {
8009 display_map.max_point().row()
8010 };
8011
8012 'outer: for selection in selections {
8013 if selection.id == last_added_selection {
8014 let range = selection.display_range(&display_map).sorted();
8015 debug_assert_eq!(range.start.row(), range.end.row());
8016 let mut row = range.start.row();
8017 let positions =
8018 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8019 px(start)..px(end)
8020 } else {
8021 let start_x =
8022 display_map.x_for_display_point(range.start, &text_layout_details);
8023 let end_x =
8024 display_map.x_for_display_point(range.end, &text_layout_details);
8025 start_x.min(end_x)..start_x.max(end_x)
8026 };
8027
8028 while row != end_row {
8029 if above {
8030 row.0 -= 1;
8031 } else {
8032 row.0 += 1;
8033 }
8034
8035 if let Some(new_selection) = self.selections.build_columnar_selection(
8036 &display_map,
8037 row,
8038 &positions,
8039 selection.reversed,
8040 &text_layout_details,
8041 ) {
8042 state.stack.push(new_selection.id);
8043 if above {
8044 new_selections.push(new_selection);
8045 new_selections.push(selection);
8046 } else {
8047 new_selections.push(selection);
8048 new_selections.push(new_selection);
8049 }
8050
8051 continue 'outer;
8052 }
8053 }
8054 }
8055
8056 new_selections.push(selection);
8057 }
8058 } else {
8059 new_selections = selections;
8060 new_selections.retain(|s| s.id != last_added_selection);
8061 state.stack.pop();
8062 }
8063
8064 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8065 s.select(new_selections);
8066 });
8067 if state.stack.len() > 1 {
8068 self.add_selections_state = Some(state);
8069 }
8070 }
8071
8072 pub fn select_next_match_internal(
8073 &mut self,
8074 display_map: &DisplaySnapshot,
8075 replace_newest: bool,
8076 autoscroll: Option<Autoscroll>,
8077 cx: &mut ViewContext<Self>,
8078 ) -> Result<()> {
8079 fn select_next_match_ranges(
8080 this: &mut Editor,
8081 range: Range<usize>,
8082 replace_newest: bool,
8083 auto_scroll: Option<Autoscroll>,
8084 cx: &mut ViewContext<Editor>,
8085 ) {
8086 this.unfold_ranges([range.clone()], false, true, cx);
8087 this.change_selections(auto_scroll, cx, |s| {
8088 if replace_newest {
8089 s.delete(s.newest_anchor().id);
8090 }
8091 s.insert_range(range.clone());
8092 });
8093 }
8094
8095 let buffer = &display_map.buffer_snapshot;
8096 let mut selections = self.selections.all::<usize>(cx);
8097 if let Some(mut select_next_state) = self.select_next_state.take() {
8098 let query = &select_next_state.query;
8099 if !select_next_state.done {
8100 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8101 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8102 let mut next_selected_range = None;
8103
8104 let bytes_after_last_selection =
8105 buffer.bytes_in_range(last_selection.end..buffer.len());
8106 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8107 let query_matches = query
8108 .stream_find_iter(bytes_after_last_selection)
8109 .map(|result| (last_selection.end, result))
8110 .chain(
8111 query
8112 .stream_find_iter(bytes_before_first_selection)
8113 .map(|result| (0, result)),
8114 );
8115
8116 for (start_offset, query_match) in query_matches {
8117 let query_match = query_match.unwrap(); // can only fail due to I/O
8118 let offset_range =
8119 start_offset + query_match.start()..start_offset + query_match.end();
8120 let display_range = offset_range.start.to_display_point(display_map)
8121 ..offset_range.end.to_display_point(display_map);
8122
8123 if !select_next_state.wordwise
8124 || (!movement::is_inside_word(display_map, display_range.start)
8125 && !movement::is_inside_word(display_map, display_range.end))
8126 {
8127 // TODO: This is n^2, because we might check all the selections
8128 if !selections
8129 .iter()
8130 .any(|selection| selection.range().overlaps(&offset_range))
8131 {
8132 next_selected_range = Some(offset_range);
8133 break;
8134 }
8135 }
8136 }
8137
8138 if let Some(next_selected_range) = next_selected_range {
8139 select_next_match_ranges(
8140 self,
8141 next_selected_range,
8142 replace_newest,
8143 autoscroll,
8144 cx,
8145 );
8146 } else {
8147 select_next_state.done = true;
8148 }
8149 }
8150
8151 self.select_next_state = Some(select_next_state);
8152 } else {
8153 let mut only_carets = true;
8154 let mut same_text_selected = true;
8155 let mut selected_text = None;
8156
8157 let mut selections_iter = selections.iter().peekable();
8158 while let Some(selection) = selections_iter.next() {
8159 if selection.start != selection.end {
8160 only_carets = false;
8161 }
8162
8163 if same_text_selected {
8164 if selected_text.is_none() {
8165 selected_text =
8166 Some(buffer.text_for_range(selection.range()).collect::<String>());
8167 }
8168
8169 if let Some(next_selection) = selections_iter.peek() {
8170 if next_selection.range().len() == selection.range().len() {
8171 let next_selected_text = buffer
8172 .text_for_range(next_selection.range())
8173 .collect::<String>();
8174 if Some(next_selected_text) != selected_text {
8175 same_text_selected = false;
8176 selected_text = None;
8177 }
8178 } else {
8179 same_text_selected = false;
8180 selected_text = None;
8181 }
8182 }
8183 }
8184 }
8185
8186 if only_carets {
8187 for selection in &mut selections {
8188 let word_range = movement::surrounding_word(
8189 display_map,
8190 selection.start.to_display_point(display_map),
8191 );
8192 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8193 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8194 selection.goal = SelectionGoal::None;
8195 selection.reversed = false;
8196 select_next_match_ranges(
8197 self,
8198 selection.start..selection.end,
8199 replace_newest,
8200 autoscroll,
8201 cx,
8202 );
8203 }
8204
8205 if selections.len() == 1 {
8206 let selection = selections
8207 .last()
8208 .expect("ensured that there's only one selection");
8209 let query = buffer
8210 .text_for_range(selection.start..selection.end)
8211 .collect::<String>();
8212 let is_empty = query.is_empty();
8213 let select_state = SelectNextState {
8214 query: AhoCorasick::new(&[query])?,
8215 wordwise: true,
8216 done: is_empty,
8217 };
8218 self.select_next_state = Some(select_state);
8219 } else {
8220 self.select_next_state = None;
8221 }
8222 } else if let Some(selected_text) = selected_text {
8223 self.select_next_state = Some(SelectNextState {
8224 query: AhoCorasick::new(&[selected_text])?,
8225 wordwise: false,
8226 done: false,
8227 });
8228 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8229 }
8230 }
8231 Ok(())
8232 }
8233
8234 pub fn select_all_matches(
8235 &mut self,
8236 _action: &SelectAllMatches,
8237 cx: &mut ViewContext<Self>,
8238 ) -> Result<()> {
8239 self.push_to_selection_history();
8240 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8241
8242 self.select_next_match_internal(&display_map, false, None, cx)?;
8243 let Some(select_next_state) = self.select_next_state.as_mut() else {
8244 return Ok(());
8245 };
8246 if select_next_state.done {
8247 return Ok(());
8248 }
8249
8250 let mut new_selections = self.selections.all::<usize>(cx);
8251
8252 let buffer = &display_map.buffer_snapshot;
8253 let query_matches = select_next_state
8254 .query
8255 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8256
8257 for query_match in query_matches {
8258 let query_match = query_match.unwrap(); // can only fail due to I/O
8259 let offset_range = query_match.start()..query_match.end();
8260 let display_range = offset_range.start.to_display_point(&display_map)
8261 ..offset_range.end.to_display_point(&display_map);
8262
8263 if !select_next_state.wordwise
8264 || (!movement::is_inside_word(&display_map, display_range.start)
8265 && !movement::is_inside_word(&display_map, display_range.end))
8266 {
8267 self.selections.change_with(cx, |selections| {
8268 new_selections.push(Selection {
8269 id: selections.new_selection_id(),
8270 start: offset_range.start,
8271 end: offset_range.end,
8272 reversed: false,
8273 goal: SelectionGoal::None,
8274 });
8275 });
8276 }
8277 }
8278
8279 new_selections.sort_by_key(|selection| selection.start);
8280 let mut ix = 0;
8281 while ix + 1 < new_selections.len() {
8282 let current_selection = &new_selections[ix];
8283 let next_selection = &new_selections[ix + 1];
8284 if current_selection.range().overlaps(&next_selection.range()) {
8285 if current_selection.id < next_selection.id {
8286 new_selections.remove(ix + 1);
8287 } else {
8288 new_selections.remove(ix);
8289 }
8290 } else {
8291 ix += 1;
8292 }
8293 }
8294
8295 select_next_state.done = true;
8296 self.unfold_ranges(
8297 new_selections.iter().map(|selection| selection.range()),
8298 false,
8299 false,
8300 cx,
8301 );
8302 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8303 selections.select(new_selections)
8304 });
8305
8306 Ok(())
8307 }
8308
8309 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8310 self.push_to_selection_history();
8311 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8312 self.select_next_match_internal(
8313 &display_map,
8314 action.replace_newest,
8315 Some(Autoscroll::newest()),
8316 cx,
8317 )?;
8318 Ok(())
8319 }
8320
8321 pub fn select_previous(
8322 &mut self,
8323 action: &SelectPrevious,
8324 cx: &mut ViewContext<Self>,
8325 ) -> Result<()> {
8326 self.push_to_selection_history();
8327 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8328 let buffer = &display_map.buffer_snapshot;
8329 let mut selections = self.selections.all::<usize>(cx);
8330 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8331 let query = &select_prev_state.query;
8332 if !select_prev_state.done {
8333 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8334 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8335 let mut next_selected_range = None;
8336 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8337 let bytes_before_last_selection =
8338 buffer.reversed_bytes_in_range(0..last_selection.start);
8339 let bytes_after_first_selection =
8340 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8341 let query_matches = query
8342 .stream_find_iter(bytes_before_last_selection)
8343 .map(|result| (last_selection.start, result))
8344 .chain(
8345 query
8346 .stream_find_iter(bytes_after_first_selection)
8347 .map(|result| (buffer.len(), result)),
8348 );
8349 for (end_offset, query_match) in query_matches {
8350 let query_match = query_match.unwrap(); // can only fail due to I/O
8351 let offset_range =
8352 end_offset - query_match.end()..end_offset - query_match.start();
8353 let display_range = offset_range.start.to_display_point(&display_map)
8354 ..offset_range.end.to_display_point(&display_map);
8355
8356 if !select_prev_state.wordwise
8357 || (!movement::is_inside_word(&display_map, display_range.start)
8358 && !movement::is_inside_word(&display_map, display_range.end))
8359 {
8360 next_selected_range = Some(offset_range);
8361 break;
8362 }
8363 }
8364
8365 if let Some(next_selected_range) = next_selected_range {
8366 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
8367 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8368 if action.replace_newest {
8369 s.delete(s.newest_anchor().id);
8370 }
8371 s.insert_range(next_selected_range);
8372 });
8373 } else {
8374 select_prev_state.done = true;
8375 }
8376 }
8377
8378 self.select_prev_state = Some(select_prev_state);
8379 } else {
8380 let mut only_carets = true;
8381 let mut same_text_selected = true;
8382 let mut selected_text = None;
8383
8384 let mut selections_iter = selections.iter().peekable();
8385 while let Some(selection) = selections_iter.next() {
8386 if selection.start != selection.end {
8387 only_carets = false;
8388 }
8389
8390 if same_text_selected {
8391 if selected_text.is_none() {
8392 selected_text =
8393 Some(buffer.text_for_range(selection.range()).collect::<String>());
8394 }
8395
8396 if let Some(next_selection) = selections_iter.peek() {
8397 if next_selection.range().len() == selection.range().len() {
8398 let next_selected_text = buffer
8399 .text_for_range(next_selection.range())
8400 .collect::<String>();
8401 if Some(next_selected_text) != selected_text {
8402 same_text_selected = false;
8403 selected_text = None;
8404 }
8405 } else {
8406 same_text_selected = false;
8407 selected_text = None;
8408 }
8409 }
8410 }
8411 }
8412
8413 if only_carets {
8414 for selection in &mut selections {
8415 let word_range = movement::surrounding_word(
8416 &display_map,
8417 selection.start.to_display_point(&display_map),
8418 );
8419 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8420 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8421 selection.goal = SelectionGoal::None;
8422 selection.reversed = false;
8423 }
8424 if selections.len() == 1 {
8425 let selection = selections
8426 .last()
8427 .expect("ensured that there's only one selection");
8428 let query = buffer
8429 .text_for_range(selection.start..selection.end)
8430 .collect::<String>();
8431 let is_empty = query.is_empty();
8432 let select_state = SelectNextState {
8433 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8434 wordwise: true,
8435 done: is_empty,
8436 };
8437 self.select_prev_state = Some(select_state);
8438 } else {
8439 self.select_prev_state = None;
8440 }
8441
8442 self.unfold_ranges(
8443 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8444 false,
8445 true,
8446 cx,
8447 );
8448 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8449 s.select(selections);
8450 });
8451 } else if let Some(selected_text) = selected_text {
8452 self.select_prev_state = Some(SelectNextState {
8453 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8454 wordwise: false,
8455 done: false,
8456 });
8457 self.select_previous(action, cx)?;
8458 }
8459 }
8460 Ok(())
8461 }
8462
8463 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8464 let text_layout_details = &self.text_layout_details(cx);
8465 self.transact(cx, |this, cx| {
8466 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8467 let mut edits = Vec::new();
8468 let mut selection_edit_ranges = Vec::new();
8469 let mut last_toggled_row = None;
8470 let snapshot = this.buffer.read(cx).read(cx);
8471 let empty_str: Arc<str> = Arc::default();
8472 let mut suffixes_inserted = Vec::new();
8473
8474 fn comment_prefix_range(
8475 snapshot: &MultiBufferSnapshot,
8476 row: MultiBufferRow,
8477 comment_prefix: &str,
8478 comment_prefix_whitespace: &str,
8479 ) -> Range<Point> {
8480 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
8481
8482 let mut line_bytes = snapshot
8483 .bytes_in_range(start..snapshot.max_point())
8484 .flatten()
8485 .copied();
8486
8487 // If this line currently begins with the line comment prefix, then record
8488 // the range containing the prefix.
8489 if line_bytes
8490 .by_ref()
8491 .take(comment_prefix.len())
8492 .eq(comment_prefix.bytes())
8493 {
8494 // Include any whitespace that matches the comment prefix.
8495 let matching_whitespace_len = line_bytes
8496 .zip(comment_prefix_whitespace.bytes())
8497 .take_while(|(a, b)| a == b)
8498 .count() as u32;
8499 let end = Point::new(
8500 start.row,
8501 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8502 );
8503 start..end
8504 } else {
8505 start..start
8506 }
8507 }
8508
8509 fn comment_suffix_range(
8510 snapshot: &MultiBufferSnapshot,
8511 row: MultiBufferRow,
8512 comment_suffix: &str,
8513 comment_suffix_has_leading_space: bool,
8514 ) -> Range<Point> {
8515 let end = Point::new(row.0, snapshot.line_len(row));
8516 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8517
8518 let mut line_end_bytes = snapshot
8519 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8520 .flatten()
8521 .copied();
8522
8523 let leading_space_len = if suffix_start_column > 0
8524 && line_end_bytes.next() == Some(b' ')
8525 && comment_suffix_has_leading_space
8526 {
8527 1
8528 } else {
8529 0
8530 };
8531
8532 // If this line currently begins with the line comment prefix, then record
8533 // the range containing the prefix.
8534 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8535 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8536 start..end
8537 } else {
8538 end..end
8539 }
8540 }
8541
8542 // TODO: Handle selections that cross excerpts
8543 for selection in &mut selections {
8544 let start_column = snapshot
8545 .indent_size_for_line(MultiBufferRow(selection.start.row))
8546 .len;
8547 let language = if let Some(language) =
8548 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8549 {
8550 language
8551 } else {
8552 continue;
8553 };
8554
8555 selection_edit_ranges.clear();
8556
8557 // If multiple selections contain a given row, avoid processing that
8558 // row more than once.
8559 let mut start_row = MultiBufferRow(selection.start.row);
8560 if last_toggled_row == Some(start_row) {
8561 start_row = start_row.next_row();
8562 }
8563 let end_row =
8564 if selection.end.row > selection.start.row && selection.end.column == 0 {
8565 MultiBufferRow(selection.end.row - 1)
8566 } else {
8567 MultiBufferRow(selection.end.row)
8568 };
8569 last_toggled_row = Some(end_row);
8570
8571 if start_row > end_row {
8572 continue;
8573 }
8574
8575 // If the language has line comments, toggle those.
8576 let full_comment_prefixes = language.line_comment_prefixes();
8577 if !full_comment_prefixes.is_empty() {
8578 let first_prefix = full_comment_prefixes
8579 .first()
8580 .expect("prefixes is non-empty");
8581 let prefix_trimmed_lengths = full_comment_prefixes
8582 .iter()
8583 .map(|p| p.trim_end_matches(' ').len())
8584 .collect::<SmallVec<[usize; 4]>>();
8585
8586 let mut all_selection_lines_are_comments = true;
8587
8588 for row in start_row.0..=end_row.0 {
8589 let row = MultiBufferRow(row);
8590 if start_row < end_row && snapshot.is_line_blank(row) {
8591 continue;
8592 }
8593
8594 let prefix_range = full_comment_prefixes
8595 .iter()
8596 .zip(prefix_trimmed_lengths.iter().copied())
8597 .map(|(prefix, trimmed_prefix_len)| {
8598 comment_prefix_range(
8599 snapshot.deref(),
8600 row,
8601 &prefix[..trimmed_prefix_len],
8602 &prefix[trimmed_prefix_len..],
8603 )
8604 })
8605 .max_by_key(|range| range.end.column - range.start.column)
8606 .expect("prefixes is non-empty");
8607
8608 if prefix_range.is_empty() {
8609 all_selection_lines_are_comments = false;
8610 }
8611
8612 selection_edit_ranges.push(prefix_range);
8613 }
8614
8615 if all_selection_lines_are_comments {
8616 edits.extend(
8617 selection_edit_ranges
8618 .iter()
8619 .cloned()
8620 .map(|range| (range, empty_str.clone())),
8621 );
8622 } else {
8623 let min_column = selection_edit_ranges
8624 .iter()
8625 .map(|range| range.start.column)
8626 .min()
8627 .unwrap_or(0);
8628 edits.extend(selection_edit_ranges.iter().map(|range| {
8629 let position = Point::new(range.start.row, min_column);
8630 (position..position, first_prefix.clone())
8631 }));
8632 }
8633 } else if let Some((full_comment_prefix, comment_suffix)) =
8634 language.block_comment_delimiters()
8635 {
8636 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8637 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8638 let prefix_range = comment_prefix_range(
8639 snapshot.deref(),
8640 start_row,
8641 comment_prefix,
8642 comment_prefix_whitespace,
8643 );
8644 let suffix_range = comment_suffix_range(
8645 snapshot.deref(),
8646 end_row,
8647 comment_suffix.trim_start_matches(' '),
8648 comment_suffix.starts_with(' '),
8649 );
8650
8651 if prefix_range.is_empty() || suffix_range.is_empty() {
8652 edits.push((
8653 prefix_range.start..prefix_range.start,
8654 full_comment_prefix.clone(),
8655 ));
8656 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8657 suffixes_inserted.push((end_row, comment_suffix.len()));
8658 } else {
8659 edits.push((prefix_range, empty_str.clone()));
8660 edits.push((suffix_range, empty_str.clone()));
8661 }
8662 } else {
8663 continue;
8664 }
8665 }
8666
8667 drop(snapshot);
8668 this.buffer.update(cx, |buffer, cx| {
8669 buffer.edit(edits, None, cx);
8670 });
8671
8672 // Adjust selections so that they end before any comment suffixes that
8673 // were inserted.
8674 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8675 let mut selections = this.selections.all::<Point>(cx);
8676 let snapshot = this.buffer.read(cx).read(cx);
8677 for selection in &mut selections {
8678 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8679 match row.cmp(&MultiBufferRow(selection.end.row)) {
8680 Ordering::Less => {
8681 suffixes_inserted.next();
8682 continue;
8683 }
8684 Ordering::Greater => break,
8685 Ordering::Equal => {
8686 if selection.end.column == snapshot.line_len(row) {
8687 if selection.is_empty() {
8688 selection.start.column -= suffix_len as u32;
8689 }
8690 selection.end.column -= suffix_len as u32;
8691 }
8692 break;
8693 }
8694 }
8695 }
8696 }
8697
8698 drop(snapshot);
8699 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8700
8701 let selections = this.selections.all::<Point>(cx);
8702 let selections_on_single_row = selections.windows(2).all(|selections| {
8703 selections[0].start.row == selections[1].start.row
8704 && selections[0].end.row == selections[1].end.row
8705 && selections[0].start.row == selections[0].end.row
8706 });
8707 let selections_selecting = selections
8708 .iter()
8709 .any(|selection| selection.start != selection.end);
8710 let advance_downwards = action.advance_downwards
8711 && selections_on_single_row
8712 && !selections_selecting
8713 && !matches!(this.mode, EditorMode::SingleLine { .. });
8714
8715 if advance_downwards {
8716 let snapshot = this.buffer.read(cx).snapshot(cx);
8717
8718 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8719 s.move_cursors_with(|display_snapshot, display_point, _| {
8720 let mut point = display_point.to_point(display_snapshot);
8721 point.row += 1;
8722 point = snapshot.clip_point(point, Bias::Left);
8723 let display_point = point.to_display_point(display_snapshot);
8724 let goal = SelectionGoal::HorizontalPosition(
8725 display_snapshot
8726 .x_for_display_point(display_point, text_layout_details)
8727 .into(),
8728 );
8729 (display_point, goal)
8730 })
8731 });
8732 }
8733 });
8734 }
8735
8736 pub fn select_enclosing_symbol(
8737 &mut self,
8738 _: &SelectEnclosingSymbol,
8739 cx: &mut ViewContext<Self>,
8740 ) {
8741 let buffer = self.buffer.read(cx).snapshot(cx);
8742 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8743
8744 fn update_selection(
8745 selection: &Selection<usize>,
8746 buffer_snap: &MultiBufferSnapshot,
8747 ) -> Option<Selection<usize>> {
8748 let cursor = selection.head();
8749 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8750 for symbol in symbols.iter().rev() {
8751 let start = symbol.range.start.to_offset(buffer_snap);
8752 let end = symbol.range.end.to_offset(buffer_snap);
8753 let new_range = start..end;
8754 if start < selection.start || end > selection.end {
8755 return Some(Selection {
8756 id: selection.id,
8757 start: new_range.start,
8758 end: new_range.end,
8759 goal: SelectionGoal::None,
8760 reversed: selection.reversed,
8761 });
8762 }
8763 }
8764 None
8765 }
8766
8767 let mut selected_larger_symbol = false;
8768 let new_selections = old_selections
8769 .iter()
8770 .map(|selection| match update_selection(selection, &buffer) {
8771 Some(new_selection) => {
8772 if new_selection.range() != selection.range() {
8773 selected_larger_symbol = true;
8774 }
8775 new_selection
8776 }
8777 None => selection.clone(),
8778 })
8779 .collect::<Vec<_>>();
8780
8781 if selected_larger_symbol {
8782 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8783 s.select(new_selections);
8784 });
8785 }
8786 }
8787
8788 pub fn select_larger_syntax_node(
8789 &mut self,
8790 _: &SelectLargerSyntaxNode,
8791 cx: &mut ViewContext<Self>,
8792 ) {
8793 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8794 let buffer = self.buffer.read(cx).snapshot(cx);
8795 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8796
8797 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8798 let mut selected_larger_node = false;
8799 let new_selections = old_selections
8800 .iter()
8801 .map(|selection| {
8802 let old_range = selection.start..selection.end;
8803 let mut new_range = old_range.clone();
8804 while let Some(containing_range) =
8805 buffer.range_for_syntax_ancestor(new_range.clone())
8806 {
8807 new_range = containing_range;
8808 if !display_map.intersects_fold(new_range.start)
8809 && !display_map.intersects_fold(new_range.end)
8810 {
8811 break;
8812 }
8813 }
8814
8815 selected_larger_node |= new_range != old_range;
8816 Selection {
8817 id: selection.id,
8818 start: new_range.start,
8819 end: new_range.end,
8820 goal: SelectionGoal::None,
8821 reversed: selection.reversed,
8822 }
8823 })
8824 .collect::<Vec<_>>();
8825
8826 if selected_larger_node {
8827 stack.push(old_selections);
8828 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8829 s.select(new_selections);
8830 });
8831 }
8832 self.select_larger_syntax_node_stack = stack;
8833 }
8834
8835 pub fn select_smaller_syntax_node(
8836 &mut self,
8837 _: &SelectSmallerSyntaxNode,
8838 cx: &mut ViewContext<Self>,
8839 ) {
8840 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8841 if let Some(selections) = stack.pop() {
8842 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8843 s.select(selections.to_vec());
8844 });
8845 }
8846 self.select_larger_syntax_node_stack = stack;
8847 }
8848
8849 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8850 if !EditorSettings::get_global(cx).gutter.runnables {
8851 self.clear_tasks();
8852 return Task::ready(());
8853 }
8854 let project = self.project.clone();
8855 cx.spawn(|this, mut cx| async move {
8856 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8857 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8858 }) else {
8859 return;
8860 };
8861
8862 let Some(project) = project else {
8863 return;
8864 };
8865
8866 let hide_runnables = project
8867 .update(&mut cx, |project, cx| {
8868 // Do not display any test indicators in non-dev server remote projects.
8869 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8870 })
8871 .unwrap_or(true);
8872 if hide_runnables {
8873 return;
8874 }
8875 let new_rows =
8876 cx.background_executor()
8877 .spawn({
8878 let snapshot = display_snapshot.clone();
8879 async move {
8880 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8881 }
8882 })
8883 .await;
8884 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8885
8886 this.update(&mut cx, |this, _| {
8887 this.clear_tasks();
8888 for (key, value) in rows {
8889 this.insert_tasks(key, value);
8890 }
8891 })
8892 .ok();
8893 })
8894 }
8895 fn fetch_runnable_ranges(
8896 snapshot: &DisplaySnapshot,
8897 range: Range<Anchor>,
8898 ) -> Vec<language::RunnableRange> {
8899 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8900 }
8901
8902 fn runnable_rows(
8903 project: Model<Project>,
8904 snapshot: DisplaySnapshot,
8905 runnable_ranges: Vec<RunnableRange>,
8906 mut cx: AsyncWindowContext,
8907 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8908 runnable_ranges
8909 .into_iter()
8910 .filter_map(|mut runnable| {
8911 let tasks = cx
8912 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8913 .ok()?;
8914 if tasks.is_empty() {
8915 return None;
8916 }
8917
8918 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8919
8920 let row = snapshot
8921 .buffer_snapshot
8922 .buffer_line_for_row(MultiBufferRow(point.row))?
8923 .1
8924 .start
8925 .row;
8926
8927 let context_range =
8928 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8929 Some((
8930 (runnable.buffer_id, row),
8931 RunnableTasks {
8932 templates: tasks,
8933 offset: MultiBufferOffset(runnable.run_range.start),
8934 context_range,
8935 column: point.column,
8936 extra_variables: runnable.extra_captures,
8937 },
8938 ))
8939 })
8940 .collect()
8941 }
8942
8943 fn templates_with_tags(
8944 project: &Model<Project>,
8945 runnable: &mut Runnable,
8946 cx: &WindowContext<'_>,
8947 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8948 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8949 let (worktree_id, file) = project
8950 .buffer_for_id(runnable.buffer, cx)
8951 .and_then(|buffer| buffer.read(cx).file())
8952 .map(|file| (file.worktree_id(cx), file.clone()))
8953 .unzip();
8954
8955 (project.task_inventory().clone(), worktree_id, file)
8956 });
8957
8958 let inventory = inventory.read(cx);
8959 let tags = mem::take(&mut runnable.tags);
8960 let mut tags: Vec<_> = tags
8961 .into_iter()
8962 .flat_map(|tag| {
8963 let tag = tag.0.clone();
8964 inventory
8965 .list_tasks(
8966 file.clone(),
8967 Some(runnable.language.clone()),
8968 worktree_id,
8969 cx,
8970 )
8971 .into_iter()
8972 .filter(move |(_, template)| {
8973 template.tags.iter().any(|source_tag| source_tag == &tag)
8974 })
8975 })
8976 .sorted_by_key(|(kind, _)| kind.to_owned())
8977 .collect();
8978 if let Some((leading_tag_source, _)) = tags.first() {
8979 // Strongest source wins; if we have worktree tag binding, prefer that to
8980 // global and language bindings;
8981 // if we have a global binding, prefer that to language binding.
8982 let first_mismatch = tags
8983 .iter()
8984 .position(|(tag_source, _)| tag_source != leading_tag_source);
8985 if let Some(index) = first_mismatch {
8986 tags.truncate(index);
8987 }
8988 }
8989
8990 tags
8991 }
8992
8993 pub fn move_to_enclosing_bracket(
8994 &mut self,
8995 _: &MoveToEnclosingBracket,
8996 cx: &mut ViewContext<Self>,
8997 ) {
8998 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8999 s.move_offsets_with(|snapshot, selection| {
9000 let Some(enclosing_bracket_ranges) =
9001 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9002 else {
9003 return;
9004 };
9005
9006 let mut best_length = usize::MAX;
9007 let mut best_inside = false;
9008 let mut best_in_bracket_range = false;
9009 let mut best_destination = None;
9010 for (open, close) in enclosing_bracket_ranges {
9011 let close = close.to_inclusive();
9012 let length = close.end() - open.start;
9013 let inside = selection.start >= open.end && selection.end <= *close.start();
9014 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9015 || close.contains(&selection.head());
9016
9017 // If best is next to a bracket and current isn't, skip
9018 if !in_bracket_range && best_in_bracket_range {
9019 continue;
9020 }
9021
9022 // Prefer smaller lengths unless best is inside and current isn't
9023 if length > best_length && (best_inside || !inside) {
9024 continue;
9025 }
9026
9027 best_length = length;
9028 best_inside = inside;
9029 best_in_bracket_range = in_bracket_range;
9030 best_destination = Some(
9031 if close.contains(&selection.start) && close.contains(&selection.end) {
9032 if inside {
9033 open.end
9034 } else {
9035 open.start
9036 }
9037 } else if inside {
9038 *close.start()
9039 } else {
9040 *close.end()
9041 },
9042 );
9043 }
9044
9045 if let Some(destination) = best_destination {
9046 selection.collapse_to(destination, SelectionGoal::None);
9047 }
9048 })
9049 });
9050 }
9051
9052 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9053 self.end_selection(cx);
9054 self.selection_history.mode = SelectionHistoryMode::Undoing;
9055 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9056 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9057 self.select_next_state = entry.select_next_state;
9058 self.select_prev_state = entry.select_prev_state;
9059 self.add_selections_state = entry.add_selections_state;
9060 self.request_autoscroll(Autoscroll::newest(), cx);
9061 }
9062 self.selection_history.mode = SelectionHistoryMode::Normal;
9063 }
9064
9065 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9066 self.end_selection(cx);
9067 self.selection_history.mode = SelectionHistoryMode::Redoing;
9068 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9069 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9070 self.select_next_state = entry.select_next_state;
9071 self.select_prev_state = entry.select_prev_state;
9072 self.add_selections_state = entry.add_selections_state;
9073 self.request_autoscroll(Autoscroll::newest(), cx);
9074 }
9075 self.selection_history.mode = SelectionHistoryMode::Normal;
9076 }
9077
9078 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9079 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9080 }
9081
9082 pub fn expand_excerpts_down(
9083 &mut self,
9084 action: &ExpandExcerptsDown,
9085 cx: &mut ViewContext<Self>,
9086 ) {
9087 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9088 }
9089
9090 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9091 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9092 }
9093
9094 pub fn expand_excerpts_for_direction(
9095 &mut self,
9096 lines: u32,
9097 direction: ExpandExcerptDirection,
9098 cx: &mut ViewContext<Self>,
9099 ) {
9100 let selections = self.selections.disjoint_anchors();
9101
9102 let lines = if lines == 0 {
9103 EditorSettings::get_global(cx).expand_excerpt_lines
9104 } else {
9105 lines
9106 };
9107
9108 self.buffer.update(cx, |buffer, cx| {
9109 buffer.expand_excerpts(
9110 selections
9111 .iter()
9112 .map(|selection| selection.head().excerpt_id)
9113 .dedup(),
9114 lines,
9115 direction,
9116 cx,
9117 )
9118 })
9119 }
9120
9121 pub fn expand_excerpt(
9122 &mut self,
9123 excerpt: ExcerptId,
9124 direction: ExpandExcerptDirection,
9125 cx: &mut ViewContext<Self>,
9126 ) {
9127 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9128 self.buffer.update(cx, |buffer, cx| {
9129 buffer.expand_excerpts([excerpt], lines, direction, cx)
9130 })
9131 }
9132
9133 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9134 self.go_to_diagnostic_impl(Direction::Next, cx)
9135 }
9136
9137 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9138 self.go_to_diagnostic_impl(Direction::Prev, cx)
9139 }
9140
9141 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9142 let buffer = self.buffer.read(cx).snapshot(cx);
9143 let selection = self.selections.newest::<usize>(cx);
9144
9145 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9146 if direction == Direction::Next {
9147 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9148 let (group_id, jump_to) = popover.activation_info();
9149 if self.activate_diagnostics(group_id, cx) {
9150 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9151 let mut new_selection = s.newest_anchor().clone();
9152 new_selection.collapse_to(jump_to, SelectionGoal::None);
9153 s.select_anchors(vec![new_selection.clone()]);
9154 });
9155 }
9156 return;
9157 }
9158 }
9159
9160 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9161 active_diagnostics
9162 .primary_range
9163 .to_offset(&buffer)
9164 .to_inclusive()
9165 });
9166 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9167 if active_primary_range.contains(&selection.head()) {
9168 *active_primary_range.start()
9169 } else {
9170 selection.head()
9171 }
9172 } else {
9173 selection.head()
9174 };
9175 let snapshot = self.snapshot(cx);
9176 loop {
9177 let diagnostics = if direction == Direction::Prev {
9178 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9179 } else {
9180 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9181 }
9182 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9183 let group = diagnostics
9184 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9185 // be sorted in a stable way
9186 // skip until we are at current active diagnostic, if it exists
9187 .skip_while(|entry| {
9188 (match direction {
9189 Direction::Prev => entry.range.start >= search_start,
9190 Direction::Next => entry.range.start <= search_start,
9191 }) && self
9192 .active_diagnostics
9193 .as_ref()
9194 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9195 })
9196 .find_map(|entry| {
9197 if entry.diagnostic.is_primary
9198 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9199 && !entry.range.is_empty()
9200 // if we match with the active diagnostic, skip it
9201 && Some(entry.diagnostic.group_id)
9202 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9203 {
9204 Some((entry.range, entry.diagnostic.group_id))
9205 } else {
9206 None
9207 }
9208 });
9209
9210 if let Some((primary_range, group_id)) = group {
9211 if self.activate_diagnostics(group_id, cx) {
9212 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9213 s.select(vec![Selection {
9214 id: selection.id,
9215 start: primary_range.start,
9216 end: primary_range.start,
9217 reversed: false,
9218 goal: SelectionGoal::None,
9219 }]);
9220 });
9221 }
9222 break;
9223 } else {
9224 // Cycle around to the start of the buffer, potentially moving back to the start of
9225 // the currently active diagnostic.
9226 active_primary_range.take();
9227 if direction == Direction::Prev {
9228 if search_start == buffer.len() {
9229 break;
9230 } else {
9231 search_start = buffer.len();
9232 }
9233 } else if search_start == 0 {
9234 break;
9235 } else {
9236 search_start = 0;
9237 }
9238 }
9239 }
9240 }
9241
9242 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9243 let snapshot = self
9244 .display_map
9245 .update(cx, |display_map, cx| display_map.snapshot(cx));
9246 let selection = self.selections.newest::<Point>(cx);
9247
9248 if !self.seek_in_direction(
9249 &snapshot,
9250 selection.head(),
9251 false,
9252 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9253 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
9254 ),
9255 cx,
9256 ) {
9257 let wrapped_point = Point::zero();
9258 self.seek_in_direction(
9259 &snapshot,
9260 wrapped_point,
9261 true,
9262 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9263 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9264 ),
9265 cx,
9266 );
9267 }
9268 }
9269
9270 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9271 let snapshot = self
9272 .display_map
9273 .update(cx, |display_map, cx| display_map.snapshot(cx));
9274 let selection = self.selections.newest::<Point>(cx);
9275
9276 if !self.seek_in_direction(
9277 &snapshot,
9278 selection.head(),
9279 false,
9280 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
9281 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
9282 ),
9283 cx,
9284 ) {
9285 let wrapped_point = snapshot.buffer_snapshot.max_point();
9286 self.seek_in_direction(
9287 &snapshot,
9288 wrapped_point,
9289 true,
9290 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
9291 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
9292 ),
9293 cx,
9294 );
9295 }
9296 }
9297
9298 fn seek_in_direction(
9299 &mut self,
9300 snapshot: &DisplaySnapshot,
9301 initial_point: Point,
9302 is_wrapped: bool,
9303 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
9304 cx: &mut ViewContext<Editor>,
9305 ) -> bool {
9306 let display_point = initial_point.to_display_point(snapshot);
9307 let mut hunks = hunks
9308 .map(|hunk| diff_hunk_to_display(&hunk, snapshot))
9309 .filter(|hunk| is_wrapped || !hunk.contains_display_row(display_point.row()))
9310 .dedup();
9311
9312 if let Some(hunk) = hunks.next() {
9313 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9314 let row = hunk.start_display_row();
9315 let point = DisplayPoint::new(row, 0);
9316 s.select_display_ranges([point..point]);
9317 });
9318
9319 true
9320 } else {
9321 false
9322 }
9323 }
9324
9325 pub fn go_to_definition(
9326 &mut self,
9327 _: &GoToDefinition,
9328 cx: &mut ViewContext<Self>,
9329 ) -> Task<Result<Navigated>> {
9330 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9331 cx.spawn(|editor, mut cx| async move {
9332 if definition.await? == Navigated::Yes {
9333 return Ok(Navigated::Yes);
9334 }
9335 match editor.update(&mut cx, |editor, cx| {
9336 editor.find_all_references(&FindAllReferences, cx)
9337 })? {
9338 Some(references) => references.await,
9339 None => Ok(Navigated::No),
9340 }
9341 })
9342 }
9343
9344 pub fn go_to_declaration(
9345 &mut self,
9346 _: &GoToDeclaration,
9347 cx: &mut ViewContext<Self>,
9348 ) -> Task<Result<Navigated>> {
9349 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9350 }
9351
9352 pub fn go_to_declaration_split(
9353 &mut self,
9354 _: &GoToDeclaration,
9355 cx: &mut ViewContext<Self>,
9356 ) -> Task<Result<Navigated>> {
9357 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9358 }
9359
9360 pub fn go_to_implementation(
9361 &mut self,
9362 _: &GoToImplementation,
9363 cx: &mut ViewContext<Self>,
9364 ) -> Task<Result<Navigated>> {
9365 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9366 }
9367
9368 pub fn go_to_implementation_split(
9369 &mut self,
9370 _: &GoToImplementationSplit,
9371 cx: &mut ViewContext<Self>,
9372 ) -> Task<Result<Navigated>> {
9373 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9374 }
9375
9376 pub fn go_to_type_definition(
9377 &mut self,
9378 _: &GoToTypeDefinition,
9379 cx: &mut ViewContext<Self>,
9380 ) -> Task<Result<Navigated>> {
9381 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9382 }
9383
9384 pub fn go_to_definition_split(
9385 &mut self,
9386 _: &GoToDefinitionSplit,
9387 cx: &mut ViewContext<Self>,
9388 ) -> Task<Result<Navigated>> {
9389 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9390 }
9391
9392 pub fn go_to_type_definition_split(
9393 &mut self,
9394 _: &GoToTypeDefinitionSplit,
9395 cx: &mut ViewContext<Self>,
9396 ) -> Task<Result<Navigated>> {
9397 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9398 }
9399
9400 fn go_to_definition_of_kind(
9401 &mut self,
9402 kind: GotoDefinitionKind,
9403 split: bool,
9404 cx: &mut ViewContext<Self>,
9405 ) -> Task<Result<Navigated>> {
9406 let Some(workspace) = self.workspace() else {
9407 return Task::ready(Ok(Navigated::No));
9408 };
9409 let buffer = self.buffer.read(cx);
9410 let head = self.selections.newest::<usize>(cx).head();
9411 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9412 text_anchor
9413 } else {
9414 return Task::ready(Ok(Navigated::No));
9415 };
9416
9417 let project = workspace.read(cx).project().clone();
9418 let definitions = project.update(cx, |project, cx| match kind {
9419 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
9420 GotoDefinitionKind::Declaration => project.declaration(&buffer, head, cx),
9421 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
9422 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
9423 });
9424
9425 cx.spawn(|editor, mut cx| async move {
9426 let definitions = definitions.await?;
9427 let navigated = editor
9428 .update(&mut cx, |editor, cx| {
9429 editor.navigate_to_hover_links(
9430 Some(kind),
9431 definitions
9432 .into_iter()
9433 .filter(|location| {
9434 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9435 })
9436 .map(HoverLink::Text)
9437 .collect::<Vec<_>>(),
9438 split,
9439 cx,
9440 )
9441 })?
9442 .await?;
9443 anyhow::Ok(navigated)
9444 })
9445 }
9446
9447 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9448 let position = self.selections.newest_anchor().head();
9449 let Some((buffer, buffer_position)) =
9450 self.buffer.read(cx).text_anchor_for_position(position, cx)
9451 else {
9452 return;
9453 };
9454
9455 cx.spawn(|editor, mut cx| async move {
9456 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9457 editor.update(&mut cx, |_, cx| {
9458 cx.open_url(&url);
9459 })
9460 } else {
9461 Ok(())
9462 }
9463 })
9464 .detach();
9465 }
9466
9467 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9468 let Some(workspace) = self.workspace() else {
9469 return;
9470 };
9471
9472 let position = self.selections.newest_anchor().head();
9473
9474 let Some((buffer, buffer_position)) =
9475 self.buffer.read(cx).text_anchor_for_position(position, cx)
9476 else {
9477 return;
9478 };
9479
9480 let Some(project) = self.project.clone() else {
9481 return;
9482 };
9483
9484 cx.spawn(|_, mut cx| async move {
9485 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9486
9487 if let Some((_, path)) = result {
9488 workspace
9489 .update(&mut cx, |workspace, cx| {
9490 workspace.open_resolved_path(path, cx)
9491 })?
9492 .await?;
9493 }
9494 anyhow::Ok(())
9495 })
9496 .detach();
9497 }
9498
9499 pub(crate) fn navigate_to_hover_links(
9500 &mut self,
9501 kind: Option<GotoDefinitionKind>,
9502 mut definitions: Vec<HoverLink>,
9503 split: bool,
9504 cx: &mut ViewContext<Editor>,
9505 ) -> Task<Result<Navigated>> {
9506 // If there is one definition, just open it directly
9507 if definitions.len() == 1 {
9508 let definition = definitions.pop().unwrap();
9509
9510 enum TargetTaskResult {
9511 Location(Option<Location>),
9512 AlreadyNavigated,
9513 }
9514
9515 let target_task = match definition {
9516 HoverLink::Text(link) => {
9517 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9518 }
9519 HoverLink::InlayHint(lsp_location, server_id) => {
9520 let computation = self.compute_target_location(lsp_location, server_id, cx);
9521 cx.background_executor().spawn(async move {
9522 let location = computation.await?;
9523 Ok(TargetTaskResult::Location(location))
9524 })
9525 }
9526 HoverLink::Url(url) => {
9527 cx.open_url(&url);
9528 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9529 }
9530 HoverLink::File(path) => {
9531 if let Some(workspace) = self.workspace() {
9532 cx.spawn(|_, mut cx| async move {
9533 workspace
9534 .update(&mut cx, |workspace, cx| {
9535 workspace.open_resolved_path(path, cx)
9536 })?
9537 .await
9538 .map(|_| TargetTaskResult::AlreadyNavigated)
9539 })
9540 } else {
9541 Task::ready(Ok(TargetTaskResult::Location(None)))
9542 }
9543 }
9544 };
9545 cx.spawn(|editor, mut cx| async move {
9546 let target = match target_task.await.context("target resolution task")? {
9547 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9548 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9549 TargetTaskResult::Location(Some(target)) => target,
9550 };
9551
9552 editor.update(&mut cx, |editor, cx| {
9553 let Some(workspace) = editor.workspace() else {
9554 return Navigated::No;
9555 };
9556 let pane = workspace.read(cx).active_pane().clone();
9557
9558 let range = target.range.to_offset(target.buffer.read(cx));
9559 let range = editor.range_for_match(&range);
9560
9561 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9562 let buffer = target.buffer.read(cx);
9563 let range = check_multiline_range(buffer, range);
9564 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
9565 s.select_ranges([range]);
9566 });
9567 } else {
9568 cx.window_context().defer(move |cx| {
9569 let target_editor: View<Self> =
9570 workspace.update(cx, |workspace, cx| {
9571 let pane = if split {
9572 workspace.adjacent_pane(cx)
9573 } else {
9574 workspace.active_pane().clone()
9575 };
9576
9577 workspace.open_project_item(
9578 pane,
9579 target.buffer.clone(),
9580 true,
9581 true,
9582 cx,
9583 )
9584 });
9585 target_editor.update(cx, |target_editor, cx| {
9586 // When selecting a definition in a different buffer, disable the nav history
9587 // to avoid creating a history entry at the previous cursor location.
9588 pane.update(cx, |pane, _| pane.disable_history());
9589 let buffer = target.buffer.read(cx);
9590 let range = check_multiline_range(buffer, range);
9591 target_editor.change_selections(
9592 Some(Autoscroll::focused()),
9593 cx,
9594 |s| {
9595 s.select_ranges([range]);
9596 },
9597 );
9598 pane.update(cx, |pane, _| pane.enable_history());
9599 });
9600 });
9601 }
9602 Navigated::Yes
9603 })
9604 })
9605 } else if !definitions.is_empty() {
9606 cx.spawn(|editor, mut cx| async move {
9607 let (title, location_tasks, workspace) = editor
9608 .update(&mut cx, |editor, cx| {
9609 let tab_kind = match kind {
9610 Some(GotoDefinitionKind::Implementation) => "Implementations",
9611 _ => "Definitions",
9612 };
9613 let title = definitions
9614 .iter()
9615 .find_map(|definition| match definition {
9616 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9617 let buffer = origin.buffer.read(cx);
9618 format!(
9619 "{} for {}",
9620 tab_kind,
9621 buffer
9622 .text_for_range(origin.range.clone())
9623 .collect::<String>()
9624 )
9625 }),
9626 HoverLink::InlayHint(_, _) => None,
9627 HoverLink::Url(_) => None,
9628 HoverLink::File(_) => None,
9629 })
9630 .unwrap_or(tab_kind.to_string());
9631 let location_tasks = definitions
9632 .into_iter()
9633 .map(|definition| match definition {
9634 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9635 HoverLink::InlayHint(lsp_location, server_id) => {
9636 editor.compute_target_location(lsp_location, server_id, cx)
9637 }
9638 HoverLink::Url(_) => Task::ready(Ok(None)),
9639 HoverLink::File(_) => Task::ready(Ok(None)),
9640 })
9641 .collect::<Vec<_>>();
9642 (title, location_tasks, editor.workspace().clone())
9643 })
9644 .context("location tasks preparation")?;
9645
9646 let locations = futures::future::join_all(location_tasks)
9647 .await
9648 .into_iter()
9649 .filter_map(|location| location.transpose())
9650 .collect::<Result<_>>()
9651 .context("location tasks")?;
9652
9653 let Some(workspace) = workspace else {
9654 return Ok(Navigated::No);
9655 };
9656 let opened = workspace
9657 .update(&mut cx, |workspace, cx| {
9658 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9659 })
9660 .ok();
9661
9662 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9663 })
9664 } else {
9665 Task::ready(Ok(Navigated::No))
9666 }
9667 }
9668
9669 fn compute_target_location(
9670 &self,
9671 lsp_location: lsp::Location,
9672 server_id: LanguageServerId,
9673 cx: &mut ViewContext<Editor>,
9674 ) -> Task<anyhow::Result<Option<Location>>> {
9675 let Some(project) = self.project.clone() else {
9676 return Task::Ready(Some(Ok(None)));
9677 };
9678
9679 cx.spawn(move |editor, mut cx| async move {
9680 let location_task = editor.update(&mut cx, |editor, cx| {
9681 project.update(cx, |project, cx| {
9682 let language_server_name =
9683 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
9684 project
9685 .language_server_for_buffer(buffer.read(cx), server_id, cx)
9686 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
9687 });
9688 language_server_name.map(|language_server_name| {
9689 project.open_local_buffer_via_lsp(
9690 lsp_location.uri.clone(),
9691 server_id,
9692 language_server_name,
9693 cx,
9694 )
9695 })
9696 })
9697 })?;
9698 let location = match location_task {
9699 Some(task) => Some({
9700 let target_buffer_handle = task.await.context("open local buffer")?;
9701 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9702 let target_start = target_buffer
9703 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9704 let target_end = target_buffer
9705 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9706 target_buffer.anchor_after(target_start)
9707 ..target_buffer.anchor_before(target_end)
9708 })?;
9709 Location {
9710 buffer: target_buffer_handle,
9711 range,
9712 }
9713 }),
9714 None => None,
9715 };
9716 Ok(location)
9717 })
9718 }
9719
9720 pub fn find_all_references(
9721 &mut self,
9722 _: &FindAllReferences,
9723 cx: &mut ViewContext<Self>,
9724 ) -> Option<Task<Result<Navigated>>> {
9725 let multi_buffer = self.buffer.read(cx);
9726 let selection = self.selections.newest::<usize>(cx);
9727 let head = selection.head();
9728
9729 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9730 let head_anchor = multi_buffer_snapshot.anchor_at(
9731 head,
9732 if head < selection.tail() {
9733 Bias::Right
9734 } else {
9735 Bias::Left
9736 },
9737 );
9738
9739 match self
9740 .find_all_references_task_sources
9741 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9742 {
9743 Ok(_) => {
9744 log::info!(
9745 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9746 );
9747 return None;
9748 }
9749 Err(i) => {
9750 self.find_all_references_task_sources.insert(i, head_anchor);
9751 }
9752 }
9753
9754 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9755 let workspace = self.workspace()?;
9756 let project = workspace.read(cx).project().clone();
9757 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9758 Some(cx.spawn(|editor, mut cx| async move {
9759 let _cleanup = defer({
9760 let mut cx = cx.clone();
9761 move || {
9762 let _ = editor.update(&mut cx, |editor, _| {
9763 if let Ok(i) =
9764 editor
9765 .find_all_references_task_sources
9766 .binary_search_by(|anchor| {
9767 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9768 })
9769 {
9770 editor.find_all_references_task_sources.remove(i);
9771 }
9772 });
9773 }
9774 });
9775
9776 let locations = references.await?;
9777 if locations.is_empty() {
9778 return anyhow::Ok(Navigated::No);
9779 }
9780
9781 workspace.update(&mut cx, |workspace, cx| {
9782 let title = locations
9783 .first()
9784 .as_ref()
9785 .map(|location| {
9786 let buffer = location.buffer.read(cx);
9787 format!(
9788 "References to `{}`",
9789 buffer
9790 .text_for_range(location.range.clone())
9791 .collect::<String>()
9792 )
9793 })
9794 .unwrap();
9795 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9796 Navigated::Yes
9797 })
9798 }))
9799 }
9800
9801 /// Opens a multibuffer with the given project locations in it
9802 pub fn open_locations_in_multibuffer(
9803 workspace: &mut Workspace,
9804 mut locations: Vec<Location>,
9805 title: String,
9806 split: bool,
9807 cx: &mut ViewContext<Workspace>,
9808 ) {
9809 // If there are multiple definitions, open them in a multibuffer
9810 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9811 let mut locations = locations.into_iter().peekable();
9812 let mut ranges_to_highlight = Vec::new();
9813 let capability = workspace.project().read(cx).capability();
9814
9815 let excerpt_buffer = cx.new_model(|cx| {
9816 let mut multibuffer = MultiBuffer::new(capability);
9817 while let Some(location) = locations.next() {
9818 let buffer = location.buffer.read(cx);
9819 let mut ranges_for_buffer = Vec::new();
9820 let range = location.range.to_offset(buffer);
9821 ranges_for_buffer.push(range.clone());
9822
9823 while let Some(next_location) = locations.peek() {
9824 if next_location.buffer == location.buffer {
9825 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9826 locations.next();
9827 } else {
9828 break;
9829 }
9830 }
9831
9832 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9833 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9834 location.buffer.clone(),
9835 ranges_for_buffer,
9836 DEFAULT_MULTIBUFFER_CONTEXT,
9837 cx,
9838 ))
9839 }
9840
9841 multibuffer.with_title(title)
9842 });
9843
9844 let editor = cx.new_view(|cx| {
9845 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9846 });
9847 editor.update(cx, |editor, cx| {
9848 if let Some(first_range) = ranges_to_highlight.first() {
9849 editor.change_selections(None, cx, |selections| {
9850 selections.clear_disjoint();
9851 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9852 });
9853 }
9854 editor.highlight_background::<Self>(
9855 &ranges_to_highlight,
9856 |theme| theme.editor_highlighted_line_background,
9857 cx,
9858 );
9859 });
9860
9861 let item = Box::new(editor);
9862 let item_id = item.item_id();
9863
9864 if split {
9865 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9866 } else {
9867 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9868 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9869 pane.close_current_preview_item(cx)
9870 } else {
9871 None
9872 }
9873 });
9874 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9875 }
9876 workspace.active_pane().update(cx, |pane, cx| {
9877 pane.set_preview_item_id(Some(item_id), cx);
9878 });
9879 }
9880
9881 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9882 use language::ToOffset as _;
9883
9884 let project = self.project.clone()?;
9885 let selection = self.selections.newest_anchor().clone();
9886 let (cursor_buffer, cursor_buffer_position) = self
9887 .buffer
9888 .read(cx)
9889 .text_anchor_for_position(selection.head(), cx)?;
9890 let (tail_buffer, cursor_buffer_position_end) = self
9891 .buffer
9892 .read(cx)
9893 .text_anchor_for_position(selection.tail(), cx)?;
9894 if tail_buffer != cursor_buffer {
9895 return None;
9896 }
9897
9898 let snapshot = cursor_buffer.read(cx).snapshot();
9899 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9900 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9901 let prepare_rename = project.update(cx, |project, cx| {
9902 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
9903 });
9904 drop(snapshot);
9905
9906 Some(cx.spawn(|this, mut cx| async move {
9907 let rename_range = if let Some(range) = prepare_rename.await? {
9908 Some(range)
9909 } else {
9910 this.update(&mut cx, |this, cx| {
9911 let buffer = this.buffer.read(cx).snapshot(cx);
9912 let mut buffer_highlights = this
9913 .document_highlights_for_position(selection.head(), &buffer)
9914 .filter(|highlight| {
9915 highlight.start.excerpt_id == selection.head().excerpt_id
9916 && highlight.end.excerpt_id == selection.head().excerpt_id
9917 });
9918 buffer_highlights
9919 .next()
9920 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9921 })?
9922 };
9923 if let Some(rename_range) = rename_range {
9924 this.update(&mut cx, |this, cx| {
9925 let snapshot = cursor_buffer.read(cx).snapshot();
9926 let rename_buffer_range = rename_range.to_offset(&snapshot);
9927 let cursor_offset_in_rename_range =
9928 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9929 let cursor_offset_in_rename_range_end =
9930 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9931
9932 this.take_rename(false, cx);
9933 let buffer = this.buffer.read(cx).read(cx);
9934 let cursor_offset = selection.head().to_offset(&buffer);
9935 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9936 let rename_end = rename_start + rename_buffer_range.len();
9937 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9938 let mut old_highlight_id = None;
9939 let old_name: Arc<str> = buffer
9940 .chunks(rename_start..rename_end, true)
9941 .map(|chunk| {
9942 if old_highlight_id.is_none() {
9943 old_highlight_id = chunk.syntax_highlight_id;
9944 }
9945 chunk.text
9946 })
9947 .collect::<String>()
9948 .into();
9949
9950 drop(buffer);
9951
9952 // Position the selection in the rename editor so that it matches the current selection.
9953 this.show_local_selections = false;
9954 let rename_editor = cx.new_view(|cx| {
9955 let mut editor = Editor::single_line(cx);
9956 editor.buffer.update(cx, |buffer, cx| {
9957 buffer.edit([(0..0, old_name.clone())], None, cx)
9958 });
9959 let rename_selection_range = match cursor_offset_in_rename_range
9960 .cmp(&cursor_offset_in_rename_range_end)
9961 {
9962 Ordering::Equal => {
9963 editor.select_all(&SelectAll, cx);
9964 return editor;
9965 }
9966 Ordering::Less => {
9967 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
9968 }
9969 Ordering::Greater => {
9970 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
9971 }
9972 };
9973 if rename_selection_range.end > old_name.len() {
9974 editor.select_all(&SelectAll, cx);
9975 } else {
9976 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9977 s.select_ranges([rename_selection_range]);
9978 });
9979 }
9980 editor
9981 });
9982 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
9983 if e == &EditorEvent::Focused {
9984 cx.emit(EditorEvent::FocusedIn)
9985 }
9986 })
9987 .detach();
9988
9989 let write_highlights =
9990 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
9991 let read_highlights =
9992 this.clear_background_highlights::<DocumentHighlightRead>(cx);
9993 let ranges = write_highlights
9994 .iter()
9995 .flat_map(|(_, ranges)| ranges.iter())
9996 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
9997 .cloned()
9998 .collect();
9999
10000 this.highlight_text::<Rename>(
10001 ranges,
10002 HighlightStyle {
10003 fade_out: Some(0.6),
10004 ..Default::default()
10005 },
10006 cx,
10007 );
10008 let rename_focus_handle = rename_editor.focus_handle(cx);
10009 cx.focus(&rename_focus_handle);
10010 let block_id = this.insert_blocks(
10011 [BlockProperties {
10012 style: BlockStyle::Flex,
10013 position: range.start,
10014 height: 1,
10015 render: Box::new({
10016 let rename_editor = rename_editor.clone();
10017 move |cx: &mut BlockContext| {
10018 let mut text_style = cx.editor_style.text.clone();
10019 if let Some(highlight_style) = old_highlight_id
10020 .and_then(|h| h.style(&cx.editor_style.syntax))
10021 {
10022 text_style = text_style.highlight(highlight_style);
10023 }
10024 div()
10025 .pl(cx.anchor_x)
10026 .child(EditorElement::new(
10027 &rename_editor,
10028 EditorStyle {
10029 background: cx.theme().system().transparent,
10030 local_player: cx.editor_style.local_player,
10031 text: text_style,
10032 scrollbar_width: cx.editor_style.scrollbar_width,
10033 syntax: cx.editor_style.syntax.clone(),
10034 status: cx.editor_style.status.clone(),
10035 inlay_hints_style: HighlightStyle {
10036 font_weight: Some(FontWeight::BOLD),
10037 ..make_inlay_hints_style(cx)
10038 },
10039 suggestions_style: HighlightStyle {
10040 color: Some(cx.theme().status().predictive),
10041 ..HighlightStyle::default()
10042 },
10043 ..EditorStyle::default()
10044 },
10045 ))
10046 .into_any_element()
10047 }
10048 }),
10049 disposition: BlockDisposition::Below,
10050 priority: 0,
10051 }],
10052 Some(Autoscroll::fit()),
10053 cx,
10054 )[0];
10055 this.pending_rename = Some(RenameState {
10056 range,
10057 old_name,
10058 editor: rename_editor,
10059 block_id,
10060 });
10061 })?;
10062 }
10063
10064 Ok(())
10065 }))
10066 }
10067
10068 pub fn confirm_rename(
10069 &mut self,
10070 _: &ConfirmRename,
10071 cx: &mut ViewContext<Self>,
10072 ) -> Option<Task<Result<()>>> {
10073 let rename = self.take_rename(false, cx)?;
10074 let workspace = self.workspace()?;
10075 let (start_buffer, start) = self
10076 .buffer
10077 .read(cx)
10078 .text_anchor_for_position(rename.range.start, cx)?;
10079 let (end_buffer, end) = self
10080 .buffer
10081 .read(cx)
10082 .text_anchor_for_position(rename.range.end, cx)?;
10083 if start_buffer != end_buffer {
10084 return None;
10085 }
10086
10087 let buffer = start_buffer;
10088 let range = start..end;
10089 let old_name = rename.old_name;
10090 let new_name = rename.editor.read(cx).text(cx);
10091
10092 let rename = workspace
10093 .read(cx)
10094 .project()
10095 .clone()
10096 .update(cx, |project, cx| {
10097 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
10098 });
10099 let workspace = workspace.downgrade();
10100
10101 Some(cx.spawn(|editor, mut cx| async move {
10102 let project_transaction = rename.await?;
10103 Self::open_project_transaction(
10104 &editor,
10105 workspace,
10106 project_transaction,
10107 format!("Rename: {} → {}", old_name, new_name),
10108 cx.clone(),
10109 )
10110 .await?;
10111
10112 editor.update(&mut cx, |editor, cx| {
10113 editor.refresh_document_highlights(cx);
10114 })?;
10115 Ok(())
10116 }))
10117 }
10118
10119 fn take_rename(
10120 &mut self,
10121 moving_cursor: bool,
10122 cx: &mut ViewContext<Self>,
10123 ) -> Option<RenameState> {
10124 let rename = self.pending_rename.take()?;
10125 if rename.editor.focus_handle(cx).is_focused(cx) {
10126 cx.focus(&self.focus_handle);
10127 }
10128
10129 self.remove_blocks(
10130 [rename.block_id].into_iter().collect(),
10131 Some(Autoscroll::fit()),
10132 cx,
10133 );
10134 self.clear_highlights::<Rename>(cx);
10135 self.show_local_selections = true;
10136
10137 if moving_cursor {
10138 let rename_editor = rename.editor.read(cx);
10139 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
10140
10141 // Update the selection to match the position of the selection inside
10142 // the rename editor.
10143 let snapshot = self.buffer.read(cx).read(cx);
10144 let rename_range = rename.range.to_offset(&snapshot);
10145 let cursor_in_editor = snapshot
10146 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10147 .min(rename_range.end);
10148 drop(snapshot);
10149
10150 self.change_selections(None, cx, |s| {
10151 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10152 });
10153 } else {
10154 self.refresh_document_highlights(cx);
10155 }
10156
10157 Some(rename)
10158 }
10159
10160 pub fn pending_rename(&self) -> Option<&RenameState> {
10161 self.pending_rename.as_ref()
10162 }
10163
10164 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10165 let project = match &self.project {
10166 Some(project) => project.clone(),
10167 None => return None,
10168 };
10169
10170 Some(self.perform_format(project, FormatTrigger::Manual, cx))
10171 }
10172
10173 fn perform_format(
10174 &mut self,
10175 project: Model<Project>,
10176 trigger: FormatTrigger,
10177 cx: &mut ViewContext<Self>,
10178 ) -> Task<Result<()>> {
10179 let buffer = self.buffer().clone();
10180 let mut buffers = buffer.read(cx).all_buffers();
10181 if trigger == FormatTrigger::Save {
10182 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10183 }
10184
10185 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10186 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
10187
10188 cx.spawn(|_, mut cx| async move {
10189 let transaction = futures::select_biased! {
10190 () = timeout => {
10191 log::warn!("timed out waiting for formatting");
10192 None
10193 }
10194 transaction = format.log_err().fuse() => transaction,
10195 };
10196
10197 buffer
10198 .update(&mut cx, |buffer, cx| {
10199 if let Some(transaction) = transaction {
10200 if !buffer.is_singleton() {
10201 buffer.push_transaction(&transaction.0, cx);
10202 }
10203 }
10204
10205 cx.notify();
10206 })
10207 .ok();
10208
10209 Ok(())
10210 })
10211 }
10212
10213 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10214 if let Some(project) = self.project.clone() {
10215 self.buffer.update(cx, |multi_buffer, cx| {
10216 project.update(cx, |project, cx| {
10217 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10218 });
10219 })
10220 }
10221 }
10222
10223 fn cancel_language_server_work(
10224 &mut self,
10225 _: &CancelLanguageServerWork,
10226 cx: &mut ViewContext<Self>,
10227 ) {
10228 if let Some(project) = self.project.clone() {
10229 self.buffer.update(cx, |multi_buffer, cx| {
10230 project.update(cx, |project, cx| {
10231 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10232 });
10233 })
10234 }
10235 }
10236
10237 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10238 cx.show_character_palette();
10239 }
10240
10241 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10242 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10243 let buffer = self.buffer.read(cx).snapshot(cx);
10244 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10245 let is_valid = buffer
10246 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10247 .any(|entry| {
10248 entry.diagnostic.is_primary
10249 && !entry.range.is_empty()
10250 && entry.range.start == primary_range_start
10251 && entry.diagnostic.message == active_diagnostics.primary_message
10252 });
10253
10254 if is_valid != active_diagnostics.is_valid {
10255 active_diagnostics.is_valid = is_valid;
10256 let mut new_styles = HashMap::default();
10257 for (block_id, diagnostic) in &active_diagnostics.blocks {
10258 new_styles.insert(
10259 *block_id,
10260 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10261 );
10262 }
10263 self.display_map.update(cx, |display_map, _cx| {
10264 display_map.replace_blocks(new_styles)
10265 });
10266 }
10267 }
10268 }
10269
10270 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10271 self.dismiss_diagnostics(cx);
10272 let snapshot = self.snapshot(cx);
10273 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10274 let buffer = self.buffer.read(cx).snapshot(cx);
10275
10276 let mut primary_range = None;
10277 let mut primary_message = None;
10278 let mut group_end = Point::zero();
10279 let diagnostic_group = buffer
10280 .diagnostic_group::<MultiBufferPoint>(group_id)
10281 .filter_map(|entry| {
10282 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10283 && (entry.range.start.row == entry.range.end.row
10284 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10285 {
10286 return None;
10287 }
10288 if entry.range.end > group_end {
10289 group_end = entry.range.end;
10290 }
10291 if entry.diagnostic.is_primary {
10292 primary_range = Some(entry.range.clone());
10293 primary_message = Some(entry.diagnostic.message.clone());
10294 }
10295 Some(entry)
10296 })
10297 .collect::<Vec<_>>();
10298 let primary_range = primary_range?;
10299 let primary_message = primary_message?;
10300 let primary_range =
10301 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10302
10303 let blocks = display_map
10304 .insert_blocks(
10305 diagnostic_group.iter().map(|entry| {
10306 let diagnostic = entry.diagnostic.clone();
10307 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10308 BlockProperties {
10309 style: BlockStyle::Fixed,
10310 position: buffer.anchor_after(entry.range.start),
10311 height: message_height,
10312 render: diagnostic_block_renderer(diagnostic, None, true, true),
10313 disposition: BlockDisposition::Below,
10314 priority: 0,
10315 }
10316 }),
10317 cx,
10318 )
10319 .into_iter()
10320 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10321 .collect();
10322
10323 Some(ActiveDiagnosticGroup {
10324 primary_range,
10325 primary_message,
10326 group_id,
10327 blocks,
10328 is_valid: true,
10329 })
10330 });
10331 self.active_diagnostics.is_some()
10332 }
10333
10334 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10335 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10336 self.display_map.update(cx, |display_map, cx| {
10337 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10338 });
10339 cx.notify();
10340 }
10341 }
10342
10343 pub fn set_selections_from_remote(
10344 &mut self,
10345 selections: Vec<Selection<Anchor>>,
10346 pending_selection: Option<Selection<Anchor>>,
10347 cx: &mut ViewContext<Self>,
10348 ) {
10349 let old_cursor_position = self.selections.newest_anchor().head();
10350 self.selections.change_with(cx, |s| {
10351 s.select_anchors(selections);
10352 if let Some(pending_selection) = pending_selection {
10353 s.set_pending(pending_selection, SelectMode::Character);
10354 } else {
10355 s.clear_pending();
10356 }
10357 });
10358 self.selections_did_change(false, &old_cursor_position, true, cx);
10359 }
10360
10361 fn push_to_selection_history(&mut self) {
10362 self.selection_history.push(SelectionHistoryEntry {
10363 selections: self.selections.disjoint_anchors(),
10364 select_next_state: self.select_next_state.clone(),
10365 select_prev_state: self.select_prev_state.clone(),
10366 add_selections_state: self.add_selections_state.clone(),
10367 });
10368 }
10369
10370 pub fn transact(
10371 &mut self,
10372 cx: &mut ViewContext<Self>,
10373 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10374 ) -> Option<TransactionId> {
10375 self.start_transaction_at(Instant::now(), cx);
10376 update(self, cx);
10377 self.end_transaction_at(Instant::now(), cx)
10378 }
10379
10380 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10381 self.end_selection(cx);
10382 if let Some(tx_id) = self
10383 .buffer
10384 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10385 {
10386 self.selection_history
10387 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10388 cx.emit(EditorEvent::TransactionBegun {
10389 transaction_id: tx_id,
10390 })
10391 }
10392 }
10393
10394 fn end_transaction_at(
10395 &mut self,
10396 now: Instant,
10397 cx: &mut ViewContext<Self>,
10398 ) -> Option<TransactionId> {
10399 if let Some(transaction_id) = self
10400 .buffer
10401 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10402 {
10403 if let Some((_, end_selections)) =
10404 self.selection_history.transaction_mut(transaction_id)
10405 {
10406 *end_selections = Some(self.selections.disjoint_anchors());
10407 } else {
10408 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10409 }
10410
10411 cx.emit(EditorEvent::Edited { transaction_id });
10412 Some(transaction_id)
10413 } else {
10414 None
10415 }
10416 }
10417
10418 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10419 let mut fold_ranges = Vec::new();
10420
10421 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10422
10423 let selections = self.selections.all_adjusted(cx);
10424 for selection in selections {
10425 let range = selection.range().sorted();
10426 let buffer_start_row = range.start.row;
10427
10428 for row in (0..=range.end.row).rev() {
10429 if let Some((foldable_range, fold_text)) =
10430 display_map.foldable_range(MultiBufferRow(row))
10431 {
10432 if foldable_range.end.row >= buffer_start_row {
10433 fold_ranges.push((foldable_range, fold_text));
10434 if row <= range.start.row {
10435 break;
10436 }
10437 }
10438 }
10439 }
10440 }
10441
10442 self.fold_ranges(fold_ranges, true, cx);
10443 }
10444
10445 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10446 let buffer_row = fold_at.buffer_row;
10447 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10448
10449 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
10450 let autoscroll = self
10451 .selections
10452 .all::<Point>(cx)
10453 .iter()
10454 .any(|selection| fold_range.overlaps(&selection.range()));
10455
10456 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
10457 }
10458 }
10459
10460 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10461 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10462 let buffer = &display_map.buffer_snapshot;
10463 let selections = self.selections.all::<Point>(cx);
10464 let ranges = selections
10465 .iter()
10466 .map(|s| {
10467 let range = s.display_range(&display_map).sorted();
10468 let mut start = range.start.to_point(&display_map);
10469 let mut end = range.end.to_point(&display_map);
10470 start.column = 0;
10471 end.column = buffer.line_len(MultiBufferRow(end.row));
10472 start..end
10473 })
10474 .collect::<Vec<_>>();
10475
10476 self.unfold_ranges(ranges, true, true, cx);
10477 }
10478
10479 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10480 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10481
10482 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10483 ..Point::new(
10484 unfold_at.buffer_row.0,
10485 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10486 );
10487
10488 let autoscroll = self
10489 .selections
10490 .all::<Point>(cx)
10491 .iter()
10492 .any(|selection| selection.range().overlaps(&intersection_range));
10493
10494 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
10495 }
10496
10497 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10498 let selections = self.selections.all::<Point>(cx);
10499 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10500 let line_mode = self.selections.line_mode;
10501 let ranges = selections.into_iter().map(|s| {
10502 if line_mode {
10503 let start = Point::new(s.start.row, 0);
10504 let end = Point::new(
10505 s.end.row,
10506 display_map
10507 .buffer_snapshot
10508 .line_len(MultiBufferRow(s.end.row)),
10509 );
10510 (start..end, display_map.fold_placeholder.clone())
10511 } else {
10512 (s.start..s.end, display_map.fold_placeholder.clone())
10513 }
10514 });
10515 self.fold_ranges(ranges, true, cx);
10516 }
10517
10518 pub fn fold_ranges<T: ToOffset + Clone>(
10519 &mut self,
10520 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
10521 auto_scroll: bool,
10522 cx: &mut ViewContext<Self>,
10523 ) {
10524 let mut fold_ranges = Vec::new();
10525 let mut buffers_affected = HashMap::default();
10526 let multi_buffer = self.buffer().read(cx);
10527 for (fold_range, fold_text) in ranges {
10528 if let Some((_, buffer, _)) =
10529 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
10530 {
10531 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10532 };
10533 fold_ranges.push((fold_range, fold_text));
10534 }
10535
10536 let mut ranges = fold_ranges.into_iter().peekable();
10537 if ranges.peek().is_some() {
10538 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
10539
10540 if auto_scroll {
10541 self.request_autoscroll(Autoscroll::fit(), cx);
10542 }
10543
10544 for buffer in buffers_affected.into_values() {
10545 self.sync_expanded_diff_hunks(buffer, cx);
10546 }
10547
10548 cx.notify();
10549
10550 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10551 // Clear diagnostics block when folding a range that contains it.
10552 let snapshot = self.snapshot(cx);
10553 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10554 drop(snapshot);
10555 self.active_diagnostics = Some(active_diagnostics);
10556 self.dismiss_diagnostics(cx);
10557 } else {
10558 self.active_diagnostics = Some(active_diagnostics);
10559 }
10560 }
10561
10562 self.scrollbar_marker_state.dirty = true;
10563 }
10564 }
10565
10566 pub fn unfold_ranges<T: ToOffset + Clone>(
10567 &mut self,
10568 ranges: impl IntoIterator<Item = Range<T>>,
10569 inclusive: bool,
10570 auto_scroll: bool,
10571 cx: &mut ViewContext<Self>,
10572 ) {
10573 let mut unfold_ranges = Vec::new();
10574 let mut buffers_affected = HashMap::default();
10575 let multi_buffer = self.buffer().read(cx);
10576 for range in ranges {
10577 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10578 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10579 };
10580 unfold_ranges.push(range);
10581 }
10582
10583 let mut ranges = unfold_ranges.into_iter().peekable();
10584 if ranges.peek().is_some() {
10585 self.display_map
10586 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
10587 if auto_scroll {
10588 self.request_autoscroll(Autoscroll::fit(), cx);
10589 }
10590
10591 for buffer in buffers_affected.into_values() {
10592 self.sync_expanded_diff_hunks(buffer, cx);
10593 }
10594
10595 cx.notify();
10596 self.scrollbar_marker_state.dirty = true;
10597 self.active_indent_guides_state.dirty = true;
10598 }
10599 }
10600
10601 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
10602 self.display_map.read(cx).fold_placeholder.clone()
10603 }
10604
10605 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10606 if hovered != self.gutter_hovered {
10607 self.gutter_hovered = hovered;
10608 cx.notify();
10609 }
10610 }
10611
10612 pub fn insert_blocks(
10613 &mut self,
10614 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
10615 autoscroll: Option<Autoscroll>,
10616 cx: &mut ViewContext<Self>,
10617 ) -> Vec<CustomBlockId> {
10618 let blocks = self
10619 .display_map
10620 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
10621 if let Some(autoscroll) = autoscroll {
10622 self.request_autoscroll(autoscroll, cx);
10623 }
10624 cx.notify();
10625 blocks
10626 }
10627
10628 pub fn resize_blocks(
10629 &mut self,
10630 heights: HashMap<CustomBlockId, u32>,
10631 autoscroll: Option<Autoscroll>,
10632 cx: &mut ViewContext<Self>,
10633 ) {
10634 self.display_map
10635 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
10636 if let Some(autoscroll) = autoscroll {
10637 self.request_autoscroll(autoscroll, cx);
10638 }
10639 cx.notify();
10640 }
10641
10642 pub fn replace_blocks(
10643 &mut self,
10644 renderers: HashMap<CustomBlockId, RenderBlock>,
10645 autoscroll: Option<Autoscroll>,
10646 cx: &mut ViewContext<Self>,
10647 ) {
10648 self.display_map
10649 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
10650 if let Some(autoscroll) = autoscroll {
10651 self.request_autoscroll(autoscroll, cx);
10652 }
10653 cx.notify();
10654 }
10655
10656 pub fn remove_blocks(
10657 &mut self,
10658 block_ids: HashSet<CustomBlockId>,
10659 autoscroll: Option<Autoscroll>,
10660 cx: &mut ViewContext<Self>,
10661 ) {
10662 self.display_map.update(cx, |display_map, cx| {
10663 display_map.remove_blocks(block_ids, cx)
10664 });
10665 if let Some(autoscroll) = autoscroll {
10666 self.request_autoscroll(autoscroll, cx);
10667 }
10668 cx.notify();
10669 }
10670
10671 pub fn row_for_block(
10672 &self,
10673 block_id: CustomBlockId,
10674 cx: &mut ViewContext<Self>,
10675 ) -> Option<DisplayRow> {
10676 self.display_map
10677 .update(cx, |map, cx| map.row_for_block(block_id, cx))
10678 }
10679
10680 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
10681 self.focused_block = Some(focused_block);
10682 }
10683
10684 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
10685 self.focused_block.take()
10686 }
10687
10688 pub fn insert_creases(
10689 &mut self,
10690 creases: impl IntoIterator<Item = Crease>,
10691 cx: &mut ViewContext<Self>,
10692 ) -> Vec<CreaseId> {
10693 self.display_map
10694 .update(cx, |map, cx| map.insert_creases(creases, cx))
10695 }
10696
10697 pub fn remove_creases(
10698 &mut self,
10699 ids: impl IntoIterator<Item = CreaseId>,
10700 cx: &mut ViewContext<Self>,
10701 ) {
10702 self.display_map
10703 .update(cx, |map, cx| map.remove_creases(ids, cx));
10704 }
10705
10706 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
10707 self.display_map
10708 .update(cx, |map, cx| map.snapshot(cx))
10709 .longest_row()
10710 }
10711
10712 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
10713 self.display_map
10714 .update(cx, |map, cx| map.snapshot(cx))
10715 .max_point()
10716 }
10717
10718 pub fn text(&self, cx: &AppContext) -> String {
10719 self.buffer.read(cx).read(cx).text()
10720 }
10721
10722 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
10723 let text = self.text(cx);
10724 let text = text.trim();
10725
10726 if text.is_empty() {
10727 return None;
10728 }
10729
10730 Some(text.to_string())
10731 }
10732
10733 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
10734 self.transact(cx, |this, cx| {
10735 this.buffer
10736 .read(cx)
10737 .as_singleton()
10738 .expect("you can only call set_text on editors for singleton buffers")
10739 .update(cx, |buffer, cx| buffer.set_text(text, cx));
10740 });
10741 }
10742
10743 pub fn display_text(&self, cx: &mut AppContext) -> String {
10744 self.display_map
10745 .update(cx, |map, cx| map.snapshot(cx))
10746 .text()
10747 }
10748
10749 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
10750 let mut wrap_guides = smallvec::smallvec![];
10751
10752 if self.show_wrap_guides == Some(false) {
10753 return wrap_guides;
10754 }
10755
10756 let settings = self.buffer.read(cx).settings_at(0, cx);
10757 if settings.show_wrap_guides {
10758 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
10759 wrap_guides.push((soft_wrap as usize, true));
10760 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
10761 wrap_guides.push((soft_wrap as usize, true));
10762 }
10763 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
10764 }
10765
10766 wrap_guides
10767 }
10768
10769 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
10770 let settings = self.buffer.read(cx).settings_at(0, cx);
10771 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
10772 match mode {
10773 language_settings::SoftWrap::None => SoftWrap::None,
10774 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
10775 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
10776 language_settings::SoftWrap::PreferredLineLength => {
10777 SoftWrap::Column(settings.preferred_line_length)
10778 }
10779 language_settings::SoftWrap::Bounded => {
10780 SoftWrap::Bounded(settings.preferred_line_length)
10781 }
10782 }
10783 }
10784
10785 pub fn set_soft_wrap_mode(
10786 &mut self,
10787 mode: language_settings::SoftWrap,
10788 cx: &mut ViewContext<Self>,
10789 ) {
10790 self.soft_wrap_mode_override = Some(mode);
10791 cx.notify();
10792 }
10793
10794 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
10795 let rem_size = cx.rem_size();
10796 self.display_map.update(cx, |map, cx| {
10797 map.set_font(
10798 style.text.font(),
10799 style.text.font_size.to_pixels(rem_size),
10800 cx,
10801 )
10802 });
10803 self.style = Some(style);
10804 }
10805
10806 pub fn style(&self) -> Option<&EditorStyle> {
10807 self.style.as_ref()
10808 }
10809
10810 // Called by the element. This method is not designed to be called outside of the editor
10811 // element's layout code because it does not notify when rewrapping is computed synchronously.
10812 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
10813 self.display_map
10814 .update(cx, |map, cx| map.set_wrap_width(width, cx))
10815 }
10816
10817 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
10818 if self.soft_wrap_mode_override.is_some() {
10819 self.soft_wrap_mode_override.take();
10820 } else {
10821 let soft_wrap = match self.soft_wrap_mode(cx) {
10822 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
10823 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
10824 language_settings::SoftWrap::PreferLine
10825 }
10826 };
10827 self.soft_wrap_mode_override = Some(soft_wrap);
10828 }
10829 cx.notify();
10830 }
10831
10832 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
10833 let Some(workspace) = self.workspace() else {
10834 return;
10835 };
10836 let fs = workspace.read(cx).app_state().fs.clone();
10837 let current_show = TabBarSettings::get_global(cx).show;
10838 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
10839 setting.show = Some(!current_show);
10840 });
10841 }
10842
10843 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
10844 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
10845 self.buffer
10846 .read(cx)
10847 .settings_at(0, cx)
10848 .indent_guides
10849 .enabled
10850 });
10851 self.show_indent_guides = Some(!currently_enabled);
10852 cx.notify();
10853 }
10854
10855 fn should_show_indent_guides(&self) -> Option<bool> {
10856 self.show_indent_guides
10857 }
10858
10859 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
10860 let mut editor_settings = EditorSettings::get_global(cx).clone();
10861 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
10862 EditorSettings::override_global(editor_settings, cx);
10863 }
10864
10865 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
10866 self.use_relative_line_numbers
10867 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
10868 }
10869
10870 pub fn toggle_relative_line_numbers(
10871 &mut self,
10872 _: &ToggleRelativeLineNumbers,
10873 cx: &mut ViewContext<Self>,
10874 ) {
10875 let is_relative = self.should_use_relative_line_numbers(cx);
10876 self.set_relative_line_number(Some(!is_relative), cx)
10877 }
10878
10879 pub fn set_relative_line_number(
10880 &mut self,
10881 is_relative: Option<bool>,
10882 cx: &mut ViewContext<Self>,
10883 ) {
10884 self.use_relative_line_numbers = is_relative;
10885 cx.notify();
10886 }
10887
10888 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
10889 self.show_gutter = show_gutter;
10890 cx.notify();
10891 }
10892
10893 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
10894 self.show_line_numbers = Some(show_line_numbers);
10895 cx.notify();
10896 }
10897
10898 pub fn set_show_git_diff_gutter(
10899 &mut self,
10900 show_git_diff_gutter: bool,
10901 cx: &mut ViewContext<Self>,
10902 ) {
10903 self.show_git_diff_gutter = Some(show_git_diff_gutter);
10904 cx.notify();
10905 }
10906
10907 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
10908 self.show_code_actions = Some(show_code_actions);
10909 cx.notify();
10910 }
10911
10912 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
10913 self.show_runnables = Some(show_runnables);
10914 cx.notify();
10915 }
10916
10917 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
10918 if self.display_map.read(cx).masked != masked {
10919 self.display_map.update(cx, |map, _| map.masked = masked);
10920 }
10921 cx.notify()
10922 }
10923
10924 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
10925 self.show_wrap_guides = Some(show_wrap_guides);
10926 cx.notify();
10927 }
10928
10929 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
10930 self.show_indent_guides = Some(show_indent_guides);
10931 cx.notify();
10932 }
10933
10934 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
10935 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10936 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10937 if let Some(dir) = file.abs_path(cx).parent() {
10938 return Some(dir.to_owned());
10939 }
10940 }
10941
10942 if let Some(project_path) = buffer.read(cx).project_path(cx) {
10943 return Some(project_path.path.to_path_buf());
10944 }
10945 }
10946
10947 None
10948 }
10949
10950 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
10951 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10952 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10953 cx.reveal_path(&file.abs_path(cx));
10954 }
10955 }
10956 }
10957
10958 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
10959 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10960 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10961 if let Some(path) = file.abs_path(cx).to_str() {
10962 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
10963 }
10964 }
10965 }
10966 }
10967
10968 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
10969 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10970 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10971 if let Some(path) = file.path().to_str() {
10972 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
10973 }
10974 }
10975 }
10976 }
10977
10978 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
10979 self.show_git_blame_gutter = !self.show_git_blame_gutter;
10980
10981 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
10982 self.start_git_blame(true, cx);
10983 }
10984
10985 cx.notify();
10986 }
10987
10988 pub fn toggle_git_blame_inline(
10989 &mut self,
10990 _: &ToggleGitBlameInline,
10991 cx: &mut ViewContext<Self>,
10992 ) {
10993 self.toggle_git_blame_inline_internal(true, cx);
10994 cx.notify();
10995 }
10996
10997 pub fn git_blame_inline_enabled(&self) -> bool {
10998 self.git_blame_inline_enabled
10999 }
11000
11001 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11002 self.show_selection_menu = self
11003 .show_selection_menu
11004 .map(|show_selections_menu| !show_selections_menu)
11005 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11006
11007 cx.notify();
11008 }
11009
11010 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11011 self.show_selection_menu
11012 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11013 }
11014
11015 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11016 if let Some(project) = self.project.as_ref() {
11017 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11018 return;
11019 };
11020
11021 if buffer.read(cx).file().is_none() {
11022 return;
11023 }
11024
11025 let focused = self.focus_handle(cx).contains_focused(cx);
11026
11027 let project = project.clone();
11028 let blame =
11029 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11030 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11031 self.blame = Some(blame);
11032 }
11033 }
11034
11035 fn toggle_git_blame_inline_internal(
11036 &mut self,
11037 user_triggered: bool,
11038 cx: &mut ViewContext<Self>,
11039 ) {
11040 if self.git_blame_inline_enabled {
11041 self.git_blame_inline_enabled = false;
11042 self.show_git_blame_inline = false;
11043 self.show_git_blame_inline_delay_task.take();
11044 } else {
11045 self.git_blame_inline_enabled = true;
11046 self.start_git_blame_inline(user_triggered, cx);
11047 }
11048
11049 cx.notify();
11050 }
11051
11052 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11053 self.start_git_blame(user_triggered, cx);
11054
11055 if ProjectSettings::get_global(cx)
11056 .git
11057 .inline_blame_delay()
11058 .is_some()
11059 {
11060 self.start_inline_blame_timer(cx);
11061 } else {
11062 self.show_git_blame_inline = true
11063 }
11064 }
11065
11066 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11067 self.blame.as_ref()
11068 }
11069
11070 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11071 self.show_git_blame_gutter && self.has_blame_entries(cx)
11072 }
11073
11074 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11075 self.show_git_blame_inline
11076 && self.focus_handle.is_focused(cx)
11077 && !self.newest_selection_head_on_empty_line(cx)
11078 && self.has_blame_entries(cx)
11079 }
11080
11081 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11082 self.blame()
11083 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11084 }
11085
11086 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11087 let cursor_anchor = self.selections.newest_anchor().head();
11088
11089 let snapshot = self.buffer.read(cx).snapshot(cx);
11090 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11091
11092 snapshot.line_len(buffer_row) == 0
11093 }
11094
11095 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
11096 let (path, selection, repo) = maybe!({
11097 let project_handle = self.project.as_ref()?.clone();
11098 let project = project_handle.read(cx);
11099
11100 let selection = self.selections.newest::<Point>(cx);
11101 let selection_range = selection.range();
11102
11103 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11104 (buffer, selection_range.start.row..selection_range.end.row)
11105 } else {
11106 let buffer_ranges = self
11107 .buffer()
11108 .read(cx)
11109 .range_to_buffer_ranges(selection_range, cx);
11110
11111 let (buffer, range, _) = if selection.reversed {
11112 buffer_ranges.first()
11113 } else {
11114 buffer_ranges.last()
11115 }?;
11116
11117 let snapshot = buffer.read(cx).snapshot();
11118 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11119 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11120 (buffer.clone(), selection)
11121 };
11122
11123 let path = buffer
11124 .read(cx)
11125 .file()?
11126 .as_local()?
11127 .path()
11128 .to_str()?
11129 .to_string();
11130 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
11131 Some((path, selection, repo))
11132 })
11133 .ok_or_else(|| anyhow!("unable to open git repository"))?;
11134
11135 const REMOTE_NAME: &str = "origin";
11136 let origin_url = repo
11137 .remote_url(REMOTE_NAME)
11138 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
11139 let sha = repo
11140 .head_sha()
11141 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
11142
11143 let (provider, remote) =
11144 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
11145 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
11146
11147 Ok(provider.build_permalink(
11148 remote,
11149 BuildPermalinkParams {
11150 sha: &sha,
11151 path: &path,
11152 selection: Some(selection),
11153 },
11154 ))
11155 }
11156
11157 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11158 let permalink = self.get_permalink_to_line(cx);
11159
11160 match permalink {
11161 Ok(permalink) => {
11162 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11163 }
11164 Err(err) => {
11165 let message = format!("Failed to copy permalink: {err}");
11166
11167 Err::<(), anyhow::Error>(err).log_err();
11168
11169 if let Some(workspace) = self.workspace() {
11170 workspace.update(cx, |workspace, cx| {
11171 struct CopyPermalinkToLine;
11172
11173 workspace.show_toast(
11174 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
11175 cx,
11176 )
11177 })
11178 }
11179 }
11180 }
11181 }
11182
11183 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11184 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11185 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11186 if let Some(path) = file.path().to_str() {
11187 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11188 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11189 }
11190 }
11191 }
11192 }
11193
11194 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11195 let permalink = self.get_permalink_to_line(cx);
11196
11197 match permalink {
11198 Ok(permalink) => {
11199 cx.open_url(permalink.as_ref());
11200 }
11201 Err(err) => {
11202 let message = format!("Failed to open permalink: {err}");
11203
11204 Err::<(), anyhow::Error>(err).log_err();
11205
11206 if let Some(workspace) = self.workspace() {
11207 workspace.update(cx, |workspace, cx| {
11208 struct OpenPermalinkToLine;
11209
11210 workspace.show_toast(
11211 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
11212 cx,
11213 )
11214 })
11215 }
11216 }
11217 }
11218 }
11219
11220 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
11221 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
11222 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
11223 pub fn highlight_rows<T: 'static>(
11224 &mut self,
11225 rows: RangeInclusive<Anchor>,
11226 color: Option<Hsla>,
11227 should_autoscroll: bool,
11228 cx: &mut ViewContext<Self>,
11229 ) {
11230 let snapshot = self.buffer().read(cx).snapshot(cx);
11231 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11232 let existing_highlight_index = row_highlights.binary_search_by(|highlight| {
11233 highlight
11234 .range
11235 .start()
11236 .cmp(rows.start(), &snapshot)
11237 .then(highlight.range.end().cmp(rows.end(), &snapshot))
11238 });
11239 match (color, existing_highlight_index) {
11240 (Some(_), Ok(ix)) | (_, Err(ix)) => row_highlights.insert(
11241 ix,
11242 RowHighlight {
11243 index: post_inc(&mut self.highlight_order),
11244 range: rows,
11245 should_autoscroll,
11246 color,
11247 },
11248 ),
11249 (None, Ok(i)) => {
11250 row_highlights.remove(i);
11251 }
11252 }
11253 }
11254
11255 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11256 pub fn clear_row_highlights<T: 'static>(&mut self) {
11257 self.highlighted_rows.remove(&TypeId::of::<T>());
11258 }
11259
11260 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11261 pub fn highlighted_rows<T: 'static>(
11262 &self,
11263 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
11264 Some(
11265 self.highlighted_rows
11266 .get(&TypeId::of::<T>())?
11267 .iter()
11268 .map(|highlight| (&highlight.range, highlight.color.as_ref())),
11269 )
11270 }
11271
11272 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11273 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11274 /// Allows to ignore certain kinds of highlights.
11275 pub fn highlighted_display_rows(
11276 &mut self,
11277 cx: &mut WindowContext,
11278 ) -> BTreeMap<DisplayRow, Hsla> {
11279 let snapshot = self.snapshot(cx);
11280 let mut used_highlight_orders = HashMap::default();
11281 self.highlighted_rows
11282 .iter()
11283 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11284 .fold(
11285 BTreeMap::<DisplayRow, Hsla>::new(),
11286 |mut unique_rows, highlight| {
11287 let start_row = highlight.range.start().to_display_point(&snapshot).row();
11288 let end_row = highlight.range.end().to_display_point(&snapshot).row();
11289 for row in start_row.0..=end_row.0 {
11290 let used_index =
11291 used_highlight_orders.entry(row).or_insert(highlight.index);
11292 if highlight.index >= *used_index {
11293 *used_index = highlight.index;
11294 match highlight.color {
11295 Some(hsla) => unique_rows.insert(DisplayRow(row), hsla),
11296 None => unique_rows.remove(&DisplayRow(row)),
11297 };
11298 }
11299 }
11300 unique_rows
11301 },
11302 )
11303 }
11304
11305 pub fn highlighted_display_row_for_autoscroll(
11306 &self,
11307 snapshot: &DisplaySnapshot,
11308 ) -> Option<DisplayRow> {
11309 self.highlighted_rows
11310 .values()
11311 .flat_map(|highlighted_rows| highlighted_rows.iter())
11312 .filter_map(|highlight| {
11313 if highlight.color.is_none() || !highlight.should_autoscroll {
11314 return None;
11315 }
11316 Some(highlight.range.start().to_display_point(snapshot).row())
11317 })
11318 .min()
11319 }
11320
11321 pub fn set_search_within_ranges(
11322 &mut self,
11323 ranges: &[Range<Anchor>],
11324 cx: &mut ViewContext<Self>,
11325 ) {
11326 self.highlight_background::<SearchWithinRange>(
11327 ranges,
11328 |colors| colors.editor_document_highlight_read_background,
11329 cx,
11330 )
11331 }
11332
11333 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11334 self.breadcrumb_header = Some(new_header);
11335 }
11336
11337 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11338 self.clear_background_highlights::<SearchWithinRange>(cx);
11339 }
11340
11341 pub fn highlight_background<T: 'static>(
11342 &mut self,
11343 ranges: &[Range<Anchor>],
11344 color_fetcher: fn(&ThemeColors) -> Hsla,
11345 cx: &mut ViewContext<Self>,
11346 ) {
11347 self.background_highlights
11348 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11349 self.scrollbar_marker_state.dirty = true;
11350 cx.notify();
11351 }
11352
11353 pub fn clear_background_highlights<T: 'static>(
11354 &mut self,
11355 cx: &mut ViewContext<Self>,
11356 ) -> Option<BackgroundHighlight> {
11357 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11358 if !text_highlights.1.is_empty() {
11359 self.scrollbar_marker_state.dirty = true;
11360 cx.notify();
11361 }
11362 Some(text_highlights)
11363 }
11364
11365 pub fn highlight_gutter<T: 'static>(
11366 &mut self,
11367 ranges: &[Range<Anchor>],
11368 color_fetcher: fn(&AppContext) -> Hsla,
11369 cx: &mut ViewContext<Self>,
11370 ) {
11371 self.gutter_highlights
11372 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11373 cx.notify();
11374 }
11375
11376 pub fn clear_gutter_highlights<T: 'static>(
11377 &mut self,
11378 cx: &mut ViewContext<Self>,
11379 ) -> Option<GutterHighlight> {
11380 cx.notify();
11381 self.gutter_highlights.remove(&TypeId::of::<T>())
11382 }
11383
11384 #[cfg(feature = "test-support")]
11385 pub fn all_text_background_highlights(
11386 &mut self,
11387 cx: &mut ViewContext<Self>,
11388 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11389 let snapshot = self.snapshot(cx);
11390 let buffer = &snapshot.buffer_snapshot;
11391 let start = buffer.anchor_before(0);
11392 let end = buffer.anchor_after(buffer.len());
11393 let theme = cx.theme().colors();
11394 self.background_highlights_in_range(start..end, &snapshot, theme)
11395 }
11396
11397 #[cfg(feature = "test-support")]
11398 pub fn search_background_highlights(
11399 &mut self,
11400 cx: &mut ViewContext<Self>,
11401 ) -> Vec<Range<Point>> {
11402 let snapshot = self.buffer().read(cx).snapshot(cx);
11403
11404 let highlights = self
11405 .background_highlights
11406 .get(&TypeId::of::<items::BufferSearchHighlights>());
11407
11408 if let Some((_color, ranges)) = highlights {
11409 ranges
11410 .iter()
11411 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11412 .collect_vec()
11413 } else {
11414 vec![]
11415 }
11416 }
11417
11418 fn document_highlights_for_position<'a>(
11419 &'a self,
11420 position: Anchor,
11421 buffer: &'a MultiBufferSnapshot,
11422 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
11423 let read_highlights = self
11424 .background_highlights
11425 .get(&TypeId::of::<DocumentHighlightRead>())
11426 .map(|h| &h.1);
11427 let write_highlights = self
11428 .background_highlights
11429 .get(&TypeId::of::<DocumentHighlightWrite>())
11430 .map(|h| &h.1);
11431 let left_position = position.bias_left(buffer);
11432 let right_position = position.bias_right(buffer);
11433 read_highlights
11434 .into_iter()
11435 .chain(write_highlights)
11436 .flat_map(move |ranges| {
11437 let start_ix = match ranges.binary_search_by(|probe| {
11438 let cmp = probe.end.cmp(&left_position, buffer);
11439 if cmp.is_ge() {
11440 Ordering::Greater
11441 } else {
11442 Ordering::Less
11443 }
11444 }) {
11445 Ok(i) | Err(i) => i,
11446 };
11447
11448 ranges[start_ix..]
11449 .iter()
11450 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11451 })
11452 }
11453
11454 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11455 self.background_highlights
11456 .get(&TypeId::of::<T>())
11457 .map_or(false, |(_, highlights)| !highlights.is_empty())
11458 }
11459
11460 pub fn background_highlights_in_range(
11461 &self,
11462 search_range: Range<Anchor>,
11463 display_snapshot: &DisplaySnapshot,
11464 theme: &ThemeColors,
11465 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11466 let mut results = Vec::new();
11467 for (color_fetcher, ranges) in self.background_highlights.values() {
11468 let color = color_fetcher(theme);
11469 let start_ix = match ranges.binary_search_by(|probe| {
11470 let cmp = probe
11471 .end
11472 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11473 if cmp.is_gt() {
11474 Ordering::Greater
11475 } else {
11476 Ordering::Less
11477 }
11478 }) {
11479 Ok(i) | Err(i) => i,
11480 };
11481 for range in &ranges[start_ix..] {
11482 if range
11483 .start
11484 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11485 .is_ge()
11486 {
11487 break;
11488 }
11489
11490 let start = range.start.to_display_point(display_snapshot);
11491 let end = range.end.to_display_point(display_snapshot);
11492 results.push((start..end, color))
11493 }
11494 }
11495 results
11496 }
11497
11498 pub fn background_highlight_row_ranges<T: 'static>(
11499 &self,
11500 search_range: Range<Anchor>,
11501 display_snapshot: &DisplaySnapshot,
11502 count: usize,
11503 ) -> Vec<RangeInclusive<DisplayPoint>> {
11504 let mut results = Vec::new();
11505 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
11506 return vec![];
11507 };
11508
11509 let start_ix = match ranges.binary_search_by(|probe| {
11510 let cmp = probe
11511 .end
11512 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11513 if cmp.is_gt() {
11514 Ordering::Greater
11515 } else {
11516 Ordering::Less
11517 }
11518 }) {
11519 Ok(i) | Err(i) => i,
11520 };
11521 let mut push_region = |start: Option<Point>, end: Option<Point>| {
11522 if let (Some(start_display), Some(end_display)) = (start, end) {
11523 results.push(
11524 start_display.to_display_point(display_snapshot)
11525 ..=end_display.to_display_point(display_snapshot),
11526 );
11527 }
11528 };
11529 let mut start_row: Option<Point> = None;
11530 let mut end_row: Option<Point> = None;
11531 if ranges.len() > count {
11532 return Vec::new();
11533 }
11534 for range in &ranges[start_ix..] {
11535 if range
11536 .start
11537 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11538 .is_ge()
11539 {
11540 break;
11541 }
11542 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
11543 if let Some(current_row) = &end_row {
11544 if end.row == current_row.row {
11545 continue;
11546 }
11547 }
11548 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
11549 if start_row.is_none() {
11550 assert_eq!(end_row, None);
11551 start_row = Some(start);
11552 end_row = Some(end);
11553 continue;
11554 }
11555 if let Some(current_end) = end_row.as_mut() {
11556 if start.row > current_end.row + 1 {
11557 push_region(start_row, end_row);
11558 start_row = Some(start);
11559 end_row = Some(end);
11560 } else {
11561 // Merge two hunks.
11562 *current_end = end;
11563 }
11564 } else {
11565 unreachable!();
11566 }
11567 }
11568 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
11569 push_region(start_row, end_row);
11570 results
11571 }
11572
11573 pub fn gutter_highlights_in_range(
11574 &self,
11575 search_range: Range<Anchor>,
11576 display_snapshot: &DisplaySnapshot,
11577 cx: &AppContext,
11578 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11579 let mut results = Vec::new();
11580 for (color_fetcher, ranges) in self.gutter_highlights.values() {
11581 let color = color_fetcher(cx);
11582 let start_ix = match ranges.binary_search_by(|probe| {
11583 let cmp = probe
11584 .end
11585 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11586 if cmp.is_gt() {
11587 Ordering::Greater
11588 } else {
11589 Ordering::Less
11590 }
11591 }) {
11592 Ok(i) | Err(i) => i,
11593 };
11594 for range in &ranges[start_ix..] {
11595 if range
11596 .start
11597 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11598 .is_ge()
11599 {
11600 break;
11601 }
11602
11603 let start = range.start.to_display_point(display_snapshot);
11604 let end = range.end.to_display_point(display_snapshot);
11605 results.push((start..end, color))
11606 }
11607 }
11608 results
11609 }
11610
11611 /// Get the text ranges corresponding to the redaction query
11612 pub fn redacted_ranges(
11613 &self,
11614 search_range: Range<Anchor>,
11615 display_snapshot: &DisplaySnapshot,
11616 cx: &WindowContext,
11617 ) -> Vec<Range<DisplayPoint>> {
11618 display_snapshot
11619 .buffer_snapshot
11620 .redacted_ranges(search_range, |file| {
11621 if let Some(file) = file {
11622 file.is_private()
11623 && EditorSettings::get(
11624 Some(SettingsLocation {
11625 worktree_id: file.worktree_id(cx),
11626 path: file.path().as_ref(),
11627 }),
11628 cx,
11629 )
11630 .redact_private_values
11631 } else {
11632 false
11633 }
11634 })
11635 .map(|range| {
11636 range.start.to_display_point(display_snapshot)
11637 ..range.end.to_display_point(display_snapshot)
11638 })
11639 .collect()
11640 }
11641
11642 pub fn highlight_text<T: 'static>(
11643 &mut self,
11644 ranges: Vec<Range<Anchor>>,
11645 style: HighlightStyle,
11646 cx: &mut ViewContext<Self>,
11647 ) {
11648 self.display_map.update(cx, |map, _| {
11649 map.highlight_text(TypeId::of::<T>(), ranges, style)
11650 });
11651 cx.notify();
11652 }
11653
11654 pub(crate) fn highlight_inlays<T: 'static>(
11655 &mut self,
11656 highlights: Vec<InlayHighlight>,
11657 style: HighlightStyle,
11658 cx: &mut ViewContext<Self>,
11659 ) {
11660 self.display_map.update(cx, |map, _| {
11661 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
11662 });
11663 cx.notify();
11664 }
11665
11666 pub fn text_highlights<'a, T: 'static>(
11667 &'a self,
11668 cx: &'a AppContext,
11669 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
11670 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
11671 }
11672
11673 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
11674 let cleared = self
11675 .display_map
11676 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
11677 if cleared {
11678 cx.notify();
11679 }
11680 }
11681
11682 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
11683 (self.read_only(cx) || self.blink_manager.read(cx).visible())
11684 && self.focus_handle.is_focused(cx)
11685 }
11686
11687 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
11688 self.show_cursor_when_unfocused = is_enabled;
11689 cx.notify();
11690 }
11691
11692 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
11693 cx.notify();
11694 }
11695
11696 fn on_buffer_event(
11697 &mut self,
11698 multibuffer: Model<MultiBuffer>,
11699 event: &multi_buffer::Event,
11700 cx: &mut ViewContext<Self>,
11701 ) {
11702 match event {
11703 multi_buffer::Event::Edited {
11704 singleton_buffer_edited,
11705 } => {
11706 self.scrollbar_marker_state.dirty = true;
11707 self.active_indent_guides_state.dirty = true;
11708 self.refresh_active_diagnostics(cx);
11709 self.refresh_code_actions(cx);
11710 if self.has_active_inline_completion(cx) {
11711 self.update_visible_inline_completion(cx);
11712 }
11713 cx.emit(EditorEvent::BufferEdited);
11714 cx.emit(SearchEvent::MatchesInvalidated);
11715 if *singleton_buffer_edited {
11716 if let Some(project) = &self.project {
11717 let project = project.read(cx);
11718 #[allow(clippy::mutable_key_type)]
11719 let languages_affected = multibuffer
11720 .read(cx)
11721 .all_buffers()
11722 .into_iter()
11723 .filter_map(|buffer| {
11724 let buffer = buffer.read(cx);
11725 let language = buffer.language()?;
11726 if project.is_local_or_ssh()
11727 && project.language_servers_for_buffer(buffer, cx).count() == 0
11728 {
11729 None
11730 } else {
11731 Some(language)
11732 }
11733 })
11734 .cloned()
11735 .collect::<HashSet<_>>();
11736 if !languages_affected.is_empty() {
11737 self.refresh_inlay_hints(
11738 InlayHintRefreshReason::BufferEdited(languages_affected),
11739 cx,
11740 );
11741 }
11742 }
11743 }
11744
11745 let Some(project) = &self.project else { return };
11746 let telemetry = project.read(cx).client().telemetry().clone();
11747 refresh_linked_ranges(self, cx);
11748 telemetry.log_edit_event("editor");
11749 }
11750 multi_buffer::Event::ExcerptsAdded {
11751 buffer,
11752 predecessor,
11753 excerpts,
11754 } => {
11755 self.tasks_update_task = Some(self.refresh_runnables(cx));
11756 cx.emit(EditorEvent::ExcerptsAdded {
11757 buffer: buffer.clone(),
11758 predecessor: *predecessor,
11759 excerpts: excerpts.clone(),
11760 });
11761 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
11762 }
11763 multi_buffer::Event::ExcerptsRemoved { ids } => {
11764 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
11765 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
11766 }
11767 multi_buffer::Event::ExcerptsEdited { ids } => {
11768 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
11769 }
11770 multi_buffer::Event::ExcerptsExpanded { ids } => {
11771 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
11772 }
11773 multi_buffer::Event::Reparsed(buffer_id) => {
11774 self.tasks_update_task = Some(self.refresh_runnables(cx));
11775
11776 cx.emit(EditorEvent::Reparsed(*buffer_id));
11777 }
11778 multi_buffer::Event::LanguageChanged(buffer_id) => {
11779 linked_editing_ranges::refresh_linked_ranges(self, cx);
11780 cx.emit(EditorEvent::Reparsed(*buffer_id));
11781 cx.notify();
11782 }
11783 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
11784 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
11785 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
11786 cx.emit(EditorEvent::TitleChanged)
11787 }
11788 multi_buffer::Event::DiffBaseChanged => {
11789 self.scrollbar_marker_state.dirty = true;
11790 cx.emit(EditorEvent::DiffBaseChanged);
11791 cx.notify();
11792 }
11793 multi_buffer::Event::DiffUpdated { buffer } => {
11794 self.sync_expanded_diff_hunks(buffer.clone(), cx);
11795 cx.notify();
11796 }
11797 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
11798 multi_buffer::Event::DiagnosticsUpdated => {
11799 self.refresh_active_diagnostics(cx);
11800 self.scrollbar_marker_state.dirty = true;
11801 cx.notify();
11802 }
11803 _ => {}
11804 };
11805 }
11806
11807 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
11808 cx.notify();
11809 }
11810
11811 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
11812 self.tasks_update_task = Some(self.refresh_runnables(cx));
11813 self.refresh_inline_completion(true, false, cx);
11814 self.refresh_inlay_hints(
11815 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
11816 self.selections.newest_anchor().head(),
11817 &self.buffer.read(cx).snapshot(cx),
11818 cx,
11819 )),
11820 cx,
11821 );
11822 let editor_settings = EditorSettings::get_global(cx);
11823 if let Some(cursor_shape) = editor_settings.cursor_shape {
11824 self.cursor_shape = cursor_shape;
11825 }
11826 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
11827 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
11828
11829 let project_settings = ProjectSettings::get_global(cx);
11830 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
11831
11832 if self.mode == EditorMode::Full {
11833 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
11834 if self.git_blame_inline_enabled != inline_blame_enabled {
11835 self.toggle_git_blame_inline_internal(false, cx);
11836 }
11837 }
11838
11839 cx.notify();
11840 }
11841
11842 pub fn set_searchable(&mut self, searchable: bool) {
11843 self.searchable = searchable;
11844 }
11845
11846 pub fn searchable(&self) -> bool {
11847 self.searchable
11848 }
11849
11850 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
11851 self.open_excerpts_common(true, cx)
11852 }
11853
11854 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
11855 self.open_excerpts_common(false, cx)
11856 }
11857
11858 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
11859 let buffer = self.buffer.read(cx);
11860 if buffer.is_singleton() {
11861 cx.propagate();
11862 return;
11863 }
11864
11865 let Some(workspace) = self.workspace() else {
11866 cx.propagate();
11867 return;
11868 };
11869
11870 let mut new_selections_by_buffer = HashMap::default();
11871 for selection in self.selections.all::<usize>(cx) {
11872 for (buffer, mut range, _) in
11873 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
11874 {
11875 if selection.reversed {
11876 mem::swap(&mut range.start, &mut range.end);
11877 }
11878 new_selections_by_buffer
11879 .entry(buffer)
11880 .or_insert(Vec::new())
11881 .push(range)
11882 }
11883 }
11884
11885 // We defer the pane interaction because we ourselves are a workspace item
11886 // and activating a new item causes the pane to call a method on us reentrantly,
11887 // which panics if we're on the stack.
11888 cx.window_context().defer(move |cx| {
11889 workspace.update(cx, |workspace, cx| {
11890 let pane = if split {
11891 workspace.adjacent_pane(cx)
11892 } else {
11893 workspace.active_pane().clone()
11894 };
11895
11896 for (buffer, ranges) in new_selections_by_buffer {
11897 let editor =
11898 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
11899 editor.update(cx, |editor, cx| {
11900 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
11901 s.select_ranges(ranges);
11902 });
11903 });
11904 }
11905 })
11906 });
11907 }
11908
11909 fn jump(
11910 &mut self,
11911 path: ProjectPath,
11912 position: Point,
11913 anchor: language::Anchor,
11914 offset_from_top: u32,
11915 cx: &mut ViewContext<Self>,
11916 ) {
11917 let workspace = self.workspace();
11918 cx.spawn(|_, mut cx| async move {
11919 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
11920 let editor = workspace.update(&mut cx, |workspace, cx| {
11921 // Reset the preview item id before opening the new item
11922 workspace.active_pane().update(cx, |pane, cx| {
11923 pane.set_preview_item_id(None, cx);
11924 });
11925 workspace.open_path_preview(path, None, true, true, cx)
11926 })?;
11927 let editor = editor
11928 .await?
11929 .downcast::<Editor>()
11930 .ok_or_else(|| anyhow!("opened item was not an editor"))?
11931 .downgrade();
11932 editor.update(&mut cx, |editor, cx| {
11933 let buffer = editor
11934 .buffer()
11935 .read(cx)
11936 .as_singleton()
11937 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
11938 let buffer = buffer.read(cx);
11939 let cursor = if buffer.can_resolve(&anchor) {
11940 language::ToPoint::to_point(&anchor, buffer)
11941 } else {
11942 buffer.clip_point(position, Bias::Left)
11943 };
11944
11945 let nav_history = editor.nav_history.take();
11946 editor.change_selections(
11947 Some(Autoscroll::top_relative(offset_from_top as usize)),
11948 cx,
11949 |s| {
11950 s.select_ranges([cursor..cursor]);
11951 },
11952 );
11953 editor.nav_history = nav_history;
11954
11955 anyhow::Ok(())
11956 })??;
11957
11958 anyhow::Ok(())
11959 })
11960 .detach_and_log_err(cx);
11961 }
11962
11963 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
11964 let snapshot = self.buffer.read(cx).read(cx);
11965 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
11966 Some(
11967 ranges
11968 .iter()
11969 .map(move |range| {
11970 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
11971 })
11972 .collect(),
11973 )
11974 }
11975
11976 fn selection_replacement_ranges(
11977 &self,
11978 range: Range<OffsetUtf16>,
11979 cx: &AppContext,
11980 ) -> Vec<Range<OffsetUtf16>> {
11981 let selections = self.selections.all::<OffsetUtf16>(cx);
11982 let newest_selection = selections
11983 .iter()
11984 .max_by_key(|selection| selection.id)
11985 .unwrap();
11986 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
11987 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
11988 let snapshot = self.buffer.read(cx).read(cx);
11989 selections
11990 .into_iter()
11991 .map(|mut selection| {
11992 selection.start.0 =
11993 (selection.start.0 as isize).saturating_add(start_delta) as usize;
11994 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
11995 snapshot.clip_offset_utf16(selection.start, Bias::Left)
11996 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
11997 })
11998 .collect()
11999 }
12000
12001 fn report_editor_event(
12002 &self,
12003 operation: &'static str,
12004 file_extension: Option<String>,
12005 cx: &AppContext,
12006 ) {
12007 if cfg!(any(test, feature = "test-support")) {
12008 return;
12009 }
12010
12011 let Some(project) = &self.project else { return };
12012
12013 // If None, we are in a file without an extension
12014 let file = self
12015 .buffer
12016 .read(cx)
12017 .as_singleton()
12018 .and_then(|b| b.read(cx).file());
12019 let file_extension = file_extension.or(file
12020 .as_ref()
12021 .and_then(|file| Path::new(file.file_name(cx)).extension())
12022 .and_then(|e| e.to_str())
12023 .map(|a| a.to_string()));
12024
12025 let vim_mode = cx
12026 .global::<SettingsStore>()
12027 .raw_user_settings()
12028 .get("vim_mode")
12029 == Some(&serde_json::Value::Bool(true));
12030
12031 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12032 == language::language_settings::InlineCompletionProvider::Copilot;
12033 let copilot_enabled_for_language = self
12034 .buffer
12035 .read(cx)
12036 .settings_at(0, cx)
12037 .show_inline_completions;
12038
12039 let telemetry = project.read(cx).client().telemetry().clone();
12040 telemetry.report_editor_event(
12041 file_extension,
12042 vim_mode,
12043 operation,
12044 copilot_enabled,
12045 copilot_enabled_for_language,
12046 )
12047 }
12048
12049 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12050 /// with each line being an array of {text, highlight} objects.
12051 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12052 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12053 return;
12054 };
12055
12056 #[derive(Serialize)]
12057 struct Chunk<'a> {
12058 text: String,
12059 highlight: Option<&'a str>,
12060 }
12061
12062 let snapshot = buffer.read(cx).snapshot();
12063 let range = self
12064 .selected_text_range(false, cx)
12065 .and_then(|selection| {
12066 if selection.range.is_empty() {
12067 None
12068 } else {
12069 Some(selection.range)
12070 }
12071 })
12072 .unwrap_or_else(|| 0..snapshot.len());
12073
12074 let chunks = snapshot.chunks(range, true);
12075 let mut lines = Vec::new();
12076 let mut line: VecDeque<Chunk> = VecDeque::new();
12077
12078 let Some(style) = self.style.as_ref() else {
12079 return;
12080 };
12081
12082 for chunk in chunks {
12083 let highlight = chunk
12084 .syntax_highlight_id
12085 .and_then(|id| id.name(&style.syntax));
12086 let mut chunk_lines = chunk.text.split('\n').peekable();
12087 while let Some(text) = chunk_lines.next() {
12088 let mut merged_with_last_token = false;
12089 if let Some(last_token) = line.back_mut() {
12090 if last_token.highlight == highlight {
12091 last_token.text.push_str(text);
12092 merged_with_last_token = true;
12093 }
12094 }
12095
12096 if !merged_with_last_token {
12097 line.push_back(Chunk {
12098 text: text.into(),
12099 highlight,
12100 });
12101 }
12102
12103 if chunk_lines.peek().is_some() {
12104 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12105 line.pop_front();
12106 }
12107 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12108 line.pop_back();
12109 }
12110
12111 lines.push(mem::take(&mut line));
12112 }
12113 }
12114 }
12115
12116 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12117 return;
12118 };
12119 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12120 }
12121
12122 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12123 &self.inlay_hint_cache
12124 }
12125
12126 pub fn replay_insert_event(
12127 &mut self,
12128 text: &str,
12129 relative_utf16_range: Option<Range<isize>>,
12130 cx: &mut ViewContext<Self>,
12131 ) {
12132 if !self.input_enabled {
12133 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12134 return;
12135 }
12136 if let Some(relative_utf16_range) = relative_utf16_range {
12137 let selections = self.selections.all::<OffsetUtf16>(cx);
12138 self.change_selections(None, cx, |s| {
12139 let new_ranges = selections.into_iter().map(|range| {
12140 let start = OffsetUtf16(
12141 range
12142 .head()
12143 .0
12144 .saturating_add_signed(relative_utf16_range.start),
12145 );
12146 let end = OffsetUtf16(
12147 range
12148 .head()
12149 .0
12150 .saturating_add_signed(relative_utf16_range.end),
12151 );
12152 start..end
12153 });
12154 s.select_ranges(new_ranges);
12155 });
12156 }
12157
12158 self.handle_input(text, cx);
12159 }
12160
12161 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12162 let Some(project) = self.project.as_ref() else {
12163 return false;
12164 };
12165 let project = project.read(cx);
12166
12167 let mut supports = false;
12168 self.buffer().read(cx).for_each_buffer(|buffer| {
12169 if !supports {
12170 supports = project
12171 .language_servers_for_buffer(buffer.read(cx), cx)
12172 .any(
12173 |(_, server)| match server.capabilities().inlay_hint_provider {
12174 Some(lsp::OneOf::Left(enabled)) => enabled,
12175 Some(lsp::OneOf::Right(_)) => true,
12176 None => false,
12177 },
12178 )
12179 }
12180 });
12181 supports
12182 }
12183
12184 pub fn focus(&self, cx: &mut WindowContext) {
12185 cx.focus(&self.focus_handle)
12186 }
12187
12188 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12189 self.focus_handle.is_focused(cx)
12190 }
12191
12192 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12193 cx.emit(EditorEvent::Focused);
12194
12195 if let Some(descendant) = self
12196 .last_focused_descendant
12197 .take()
12198 .and_then(|descendant| descendant.upgrade())
12199 {
12200 cx.focus(&descendant);
12201 } else {
12202 if let Some(blame) = self.blame.as_ref() {
12203 blame.update(cx, GitBlame::focus)
12204 }
12205
12206 self.blink_manager.update(cx, BlinkManager::enable);
12207 self.show_cursor_names(cx);
12208 self.buffer.update(cx, |buffer, cx| {
12209 buffer.finalize_last_transaction(cx);
12210 if self.leader_peer_id.is_none() {
12211 buffer.set_active_selections(
12212 &self.selections.disjoint_anchors(),
12213 self.selections.line_mode,
12214 self.cursor_shape,
12215 cx,
12216 );
12217 }
12218 });
12219 }
12220 }
12221
12222 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12223 cx.emit(EditorEvent::FocusedIn)
12224 }
12225
12226 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12227 if event.blurred != self.focus_handle {
12228 self.last_focused_descendant = Some(event.blurred);
12229 }
12230 }
12231
12232 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12233 self.blink_manager.update(cx, BlinkManager::disable);
12234 self.buffer
12235 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12236
12237 if let Some(blame) = self.blame.as_ref() {
12238 blame.update(cx, GitBlame::blur)
12239 }
12240 if !self.hover_state.focused(cx) {
12241 hide_hover(self, cx);
12242 }
12243
12244 self.hide_context_menu(cx);
12245 cx.emit(EditorEvent::Blurred);
12246 cx.notify();
12247 }
12248
12249 pub fn register_action<A: Action>(
12250 &mut self,
12251 listener: impl Fn(&A, &mut WindowContext) + 'static,
12252 ) -> Subscription {
12253 let id = self.next_editor_action_id.post_inc();
12254 let listener = Arc::new(listener);
12255 self.editor_actions.borrow_mut().insert(
12256 id,
12257 Box::new(move |cx| {
12258 let cx = cx.window_context();
12259 let listener = listener.clone();
12260 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12261 let action = action.downcast_ref().unwrap();
12262 if phase == DispatchPhase::Bubble {
12263 listener(action, cx)
12264 }
12265 })
12266 }),
12267 );
12268
12269 let editor_actions = self.editor_actions.clone();
12270 Subscription::new(move || {
12271 editor_actions.borrow_mut().remove(&id);
12272 })
12273 }
12274
12275 pub fn file_header_size(&self) -> u32 {
12276 self.file_header_size
12277 }
12278
12279 pub fn revert(
12280 &mut self,
12281 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12282 cx: &mut ViewContext<Self>,
12283 ) {
12284 self.buffer().update(cx, |multi_buffer, cx| {
12285 for (buffer_id, changes) in revert_changes {
12286 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12287 buffer.update(cx, |buffer, cx| {
12288 buffer.edit(
12289 changes.into_iter().map(|(range, text)| {
12290 (range, text.to_string().map(Arc::<str>::from))
12291 }),
12292 None,
12293 cx,
12294 );
12295 });
12296 }
12297 }
12298 });
12299 self.change_selections(None, cx, |selections| selections.refresh());
12300 }
12301
12302 pub fn to_pixel_point(
12303 &mut self,
12304 source: multi_buffer::Anchor,
12305 editor_snapshot: &EditorSnapshot,
12306 cx: &mut ViewContext<Self>,
12307 ) -> Option<gpui::Point<Pixels>> {
12308 let source_point = source.to_display_point(editor_snapshot);
12309 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12310 }
12311
12312 pub fn display_to_pixel_point(
12313 &mut self,
12314 source: DisplayPoint,
12315 editor_snapshot: &EditorSnapshot,
12316 cx: &mut ViewContext<Self>,
12317 ) -> Option<gpui::Point<Pixels>> {
12318 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12319 let text_layout_details = self.text_layout_details(cx);
12320 let scroll_top = text_layout_details
12321 .scroll_anchor
12322 .scroll_position(editor_snapshot)
12323 .y;
12324
12325 if source.row().as_f32() < scroll_top.floor() {
12326 return None;
12327 }
12328 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12329 let source_y = line_height * (source.row().as_f32() - scroll_top);
12330 Some(gpui::Point::new(source_x, source_y))
12331 }
12332
12333 fn gutter_bounds(&self) -> Option<Bounds<Pixels>> {
12334 let bounds = self.last_bounds?;
12335 Some(element::gutter_bounds(bounds, self.gutter_dimensions))
12336 }
12337
12338 pub fn has_active_completions_menu(&self) -> bool {
12339 self.context_menu.read().as_ref().map_or(false, |menu| {
12340 menu.visible() && matches!(menu, ContextMenu::Completions(_))
12341 })
12342 }
12343
12344 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12345 self.addons
12346 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
12347 }
12348
12349 pub fn unregister_addon<T: Addon>(&mut self) {
12350 self.addons.remove(&std::any::TypeId::of::<T>());
12351 }
12352
12353 pub fn addon<T: Addon>(&self) -> Option<&T> {
12354 let type_id = std::any::TypeId::of::<T>();
12355 self.addons
12356 .get(&type_id)
12357 .and_then(|item| item.to_any().downcast_ref::<T>())
12358 }
12359}
12360
12361fn hunks_for_selections(
12362 multi_buffer_snapshot: &MultiBufferSnapshot,
12363 selections: &[Selection<Anchor>],
12364) -> Vec<DiffHunk<MultiBufferRow>> {
12365 let buffer_rows_for_selections = selections.iter().map(|selection| {
12366 let head = selection.head();
12367 let tail = selection.tail();
12368 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
12369 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
12370 if start > end {
12371 end..start
12372 } else {
12373 start..end
12374 }
12375 });
12376
12377 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
12378}
12379
12380pub fn hunks_for_rows(
12381 rows: impl Iterator<Item = Range<MultiBufferRow>>,
12382 multi_buffer_snapshot: &MultiBufferSnapshot,
12383) -> Vec<DiffHunk<MultiBufferRow>> {
12384 let mut hunks = Vec::new();
12385 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
12386 HashMap::default();
12387 for selected_multi_buffer_rows in rows {
12388 let query_rows =
12389 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
12390 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
12391 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
12392 // when the caret is just above or just below the deleted hunk.
12393 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
12394 let related_to_selection = if allow_adjacent {
12395 hunk.associated_range.overlaps(&query_rows)
12396 || hunk.associated_range.start == query_rows.end
12397 || hunk.associated_range.end == query_rows.start
12398 } else {
12399 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
12400 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
12401 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
12402 || selected_multi_buffer_rows.end == hunk.associated_range.start
12403 };
12404 if related_to_selection {
12405 if !processed_buffer_rows
12406 .entry(hunk.buffer_id)
12407 .or_default()
12408 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
12409 {
12410 continue;
12411 }
12412 hunks.push(hunk);
12413 }
12414 }
12415 }
12416
12417 hunks
12418}
12419
12420pub trait CollaborationHub {
12421 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
12422 fn user_participant_indices<'a>(
12423 &self,
12424 cx: &'a AppContext,
12425 ) -> &'a HashMap<u64, ParticipantIndex>;
12426 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
12427}
12428
12429impl CollaborationHub for Model<Project> {
12430 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
12431 self.read(cx).collaborators()
12432 }
12433
12434 fn user_participant_indices<'a>(
12435 &self,
12436 cx: &'a AppContext,
12437 ) -> &'a HashMap<u64, ParticipantIndex> {
12438 self.read(cx).user_store().read(cx).participant_indices()
12439 }
12440
12441 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
12442 let this = self.read(cx);
12443 let user_ids = this.collaborators().values().map(|c| c.user_id);
12444 this.user_store().read_with(cx, |user_store, cx| {
12445 user_store.participant_names(user_ids, cx)
12446 })
12447 }
12448}
12449
12450pub trait CompletionProvider {
12451 fn completions(
12452 &self,
12453 buffer: &Model<Buffer>,
12454 buffer_position: text::Anchor,
12455 trigger: CompletionContext,
12456 cx: &mut ViewContext<Editor>,
12457 ) -> Task<Result<Vec<Completion>>>;
12458
12459 fn resolve_completions(
12460 &self,
12461 buffer: Model<Buffer>,
12462 completion_indices: Vec<usize>,
12463 completions: Arc<RwLock<Box<[Completion]>>>,
12464 cx: &mut ViewContext<Editor>,
12465 ) -> Task<Result<bool>>;
12466
12467 fn apply_additional_edits_for_completion(
12468 &self,
12469 buffer: Model<Buffer>,
12470 completion: Completion,
12471 push_to_history: bool,
12472 cx: &mut ViewContext<Editor>,
12473 ) -> Task<Result<Option<language::Transaction>>>;
12474
12475 fn is_completion_trigger(
12476 &self,
12477 buffer: &Model<Buffer>,
12478 position: language::Anchor,
12479 text: &str,
12480 trigger_in_words: bool,
12481 cx: &mut ViewContext<Editor>,
12482 ) -> bool;
12483
12484 fn sort_completions(&self) -> bool {
12485 true
12486 }
12487}
12488
12489fn snippet_completions(
12490 project: &Project,
12491 buffer: &Model<Buffer>,
12492 buffer_position: text::Anchor,
12493 cx: &mut AppContext,
12494) -> Vec<Completion> {
12495 let language = buffer.read(cx).language_at(buffer_position);
12496 let language_name = language.as_ref().map(|language| language.lsp_id());
12497 let snippet_store = project.snippets().read(cx);
12498 let snippets = snippet_store.snippets_for(language_name, cx);
12499
12500 if snippets.is_empty() {
12501 return vec![];
12502 }
12503 let snapshot = buffer.read(cx).text_snapshot();
12504 let chunks = snapshot.reversed_chunks_in_range(text::Anchor::MIN..buffer_position);
12505
12506 let mut lines = chunks.lines();
12507 let Some(line_at) = lines.next().filter(|line| !line.is_empty()) else {
12508 return vec![];
12509 };
12510
12511 let scope = language.map(|language| language.default_scope());
12512 let classifier = CharClassifier::new(scope).for_completion(true);
12513 let mut last_word = line_at
12514 .chars()
12515 .rev()
12516 .take_while(|c| classifier.is_word(*c))
12517 .collect::<String>();
12518 last_word = last_word.chars().rev().collect();
12519 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
12520 let to_lsp = |point: &text::Anchor| {
12521 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
12522 point_to_lsp(end)
12523 };
12524 let lsp_end = to_lsp(&buffer_position);
12525 snippets
12526 .into_iter()
12527 .filter_map(|snippet| {
12528 let matching_prefix = snippet
12529 .prefix
12530 .iter()
12531 .find(|prefix| prefix.starts_with(&last_word))?;
12532 let start = as_offset - last_word.len();
12533 let start = snapshot.anchor_before(start);
12534 let range = start..buffer_position;
12535 let lsp_start = to_lsp(&start);
12536 let lsp_range = lsp::Range {
12537 start: lsp_start,
12538 end: lsp_end,
12539 };
12540 Some(Completion {
12541 old_range: range,
12542 new_text: snippet.body.clone(),
12543 label: CodeLabel {
12544 text: matching_prefix.clone(),
12545 runs: vec![],
12546 filter_range: 0..matching_prefix.len(),
12547 },
12548 server_id: LanguageServerId(usize::MAX),
12549 documentation: snippet.description.clone().map(Documentation::SingleLine),
12550 lsp_completion: lsp::CompletionItem {
12551 label: snippet.prefix.first().unwrap().clone(),
12552 kind: Some(CompletionItemKind::SNIPPET),
12553 label_details: snippet.description.as_ref().map(|description| {
12554 lsp::CompletionItemLabelDetails {
12555 detail: Some(description.clone()),
12556 description: None,
12557 }
12558 }),
12559 insert_text_format: Some(InsertTextFormat::SNIPPET),
12560 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
12561 lsp::InsertReplaceEdit {
12562 new_text: snippet.body.clone(),
12563 insert: lsp_range,
12564 replace: lsp_range,
12565 },
12566 )),
12567 filter_text: Some(snippet.body.clone()),
12568 sort_text: Some(char::MAX.to_string()),
12569 ..Default::default()
12570 },
12571 confirm: None,
12572 })
12573 })
12574 .collect()
12575}
12576
12577impl CompletionProvider for Model<Project> {
12578 fn completions(
12579 &self,
12580 buffer: &Model<Buffer>,
12581 buffer_position: text::Anchor,
12582 options: CompletionContext,
12583 cx: &mut ViewContext<Editor>,
12584 ) -> Task<Result<Vec<Completion>>> {
12585 self.update(cx, |project, cx| {
12586 let snippets = snippet_completions(project, buffer, buffer_position, cx);
12587 let project_completions = project.completions(buffer, buffer_position, options, cx);
12588 cx.background_executor().spawn(async move {
12589 let mut completions = project_completions.await?;
12590 //let snippets = snippets.into_iter().;
12591 completions.extend(snippets);
12592 Ok(completions)
12593 })
12594 })
12595 }
12596
12597 fn resolve_completions(
12598 &self,
12599 buffer: Model<Buffer>,
12600 completion_indices: Vec<usize>,
12601 completions: Arc<RwLock<Box<[Completion]>>>,
12602 cx: &mut ViewContext<Editor>,
12603 ) -> Task<Result<bool>> {
12604 self.update(cx, |project, cx| {
12605 project.resolve_completions(buffer, completion_indices, completions, cx)
12606 })
12607 }
12608
12609 fn apply_additional_edits_for_completion(
12610 &self,
12611 buffer: Model<Buffer>,
12612 completion: Completion,
12613 push_to_history: bool,
12614 cx: &mut ViewContext<Editor>,
12615 ) -> Task<Result<Option<language::Transaction>>> {
12616 self.update(cx, |project, cx| {
12617 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
12618 })
12619 }
12620
12621 fn is_completion_trigger(
12622 &self,
12623 buffer: &Model<Buffer>,
12624 position: language::Anchor,
12625 text: &str,
12626 trigger_in_words: bool,
12627 cx: &mut ViewContext<Editor>,
12628 ) -> bool {
12629 if !EditorSettings::get_global(cx).show_completions_on_input {
12630 return false;
12631 }
12632
12633 let mut chars = text.chars();
12634 let char = if let Some(char) = chars.next() {
12635 char
12636 } else {
12637 return false;
12638 };
12639 if chars.next().is_some() {
12640 return false;
12641 }
12642
12643 let buffer = buffer.read(cx);
12644 let classifier = buffer
12645 .snapshot()
12646 .char_classifier_at(position)
12647 .for_completion(true);
12648 if trigger_in_words && classifier.is_word(char) {
12649 return true;
12650 }
12651
12652 buffer
12653 .completion_triggers()
12654 .iter()
12655 .any(|string| string == text)
12656 }
12657}
12658
12659fn inlay_hint_settings(
12660 location: Anchor,
12661 snapshot: &MultiBufferSnapshot,
12662 cx: &mut ViewContext<'_, Editor>,
12663) -> InlayHintSettings {
12664 let file = snapshot.file_at(location);
12665 let language = snapshot.language_at(location);
12666 let settings = all_language_settings(file, cx);
12667 settings
12668 .language(language.map(|l| l.name()).as_ref())
12669 .inlay_hints
12670}
12671
12672fn consume_contiguous_rows(
12673 contiguous_row_selections: &mut Vec<Selection<Point>>,
12674 selection: &Selection<Point>,
12675 display_map: &DisplaySnapshot,
12676 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
12677) -> (MultiBufferRow, MultiBufferRow) {
12678 contiguous_row_selections.push(selection.clone());
12679 let start_row = MultiBufferRow(selection.start.row);
12680 let mut end_row = ending_row(selection, display_map);
12681
12682 while let Some(next_selection) = selections.peek() {
12683 if next_selection.start.row <= end_row.0 {
12684 end_row = ending_row(next_selection, display_map);
12685 contiguous_row_selections.push(selections.next().unwrap().clone());
12686 } else {
12687 break;
12688 }
12689 }
12690 (start_row, end_row)
12691}
12692
12693fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
12694 if next_selection.end.column > 0 || next_selection.is_empty() {
12695 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
12696 } else {
12697 MultiBufferRow(next_selection.end.row)
12698 }
12699}
12700
12701impl EditorSnapshot {
12702 pub fn remote_selections_in_range<'a>(
12703 &'a self,
12704 range: &'a Range<Anchor>,
12705 collaboration_hub: &dyn CollaborationHub,
12706 cx: &'a AppContext,
12707 ) -> impl 'a + Iterator<Item = RemoteSelection> {
12708 let participant_names = collaboration_hub.user_names(cx);
12709 let participant_indices = collaboration_hub.user_participant_indices(cx);
12710 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
12711 let collaborators_by_replica_id = collaborators_by_peer_id
12712 .iter()
12713 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
12714 .collect::<HashMap<_, _>>();
12715 self.buffer_snapshot
12716 .selections_in_range(range, false)
12717 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
12718 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
12719 let participant_index = participant_indices.get(&collaborator.user_id).copied();
12720 let user_name = participant_names.get(&collaborator.user_id).cloned();
12721 Some(RemoteSelection {
12722 replica_id,
12723 selection,
12724 cursor_shape,
12725 line_mode,
12726 participant_index,
12727 peer_id: collaborator.peer_id,
12728 user_name,
12729 })
12730 })
12731 }
12732
12733 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
12734 self.display_snapshot.buffer_snapshot.language_at(position)
12735 }
12736
12737 pub fn is_focused(&self) -> bool {
12738 self.is_focused
12739 }
12740
12741 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
12742 self.placeholder_text.as_ref()
12743 }
12744
12745 pub fn scroll_position(&self) -> gpui::Point<f32> {
12746 self.scroll_anchor.scroll_position(&self.display_snapshot)
12747 }
12748
12749 fn gutter_dimensions(
12750 &self,
12751 font_id: FontId,
12752 font_size: Pixels,
12753 em_width: Pixels,
12754 max_line_number_width: Pixels,
12755 cx: &AppContext,
12756 ) -> GutterDimensions {
12757 if !self.show_gutter {
12758 return GutterDimensions::default();
12759 }
12760 let descent = cx.text_system().descent(font_id, font_size);
12761
12762 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
12763 matches!(
12764 ProjectSettings::get_global(cx).git.git_gutter,
12765 Some(GitGutterSetting::TrackedFiles)
12766 )
12767 });
12768 let gutter_settings = EditorSettings::get_global(cx).gutter;
12769 let show_line_numbers = self
12770 .show_line_numbers
12771 .unwrap_or(gutter_settings.line_numbers);
12772 let line_gutter_width = if show_line_numbers {
12773 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
12774 let min_width_for_number_on_gutter = em_width * 4.0;
12775 max_line_number_width.max(min_width_for_number_on_gutter)
12776 } else {
12777 0.0.into()
12778 };
12779
12780 let show_code_actions = self
12781 .show_code_actions
12782 .unwrap_or(gutter_settings.code_actions);
12783
12784 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
12785
12786 let git_blame_entries_width = self
12787 .render_git_blame_gutter
12788 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
12789
12790 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
12791 left_padding += if show_code_actions || show_runnables {
12792 em_width * 3.0
12793 } else if show_git_gutter && show_line_numbers {
12794 em_width * 2.0
12795 } else if show_git_gutter || show_line_numbers {
12796 em_width
12797 } else {
12798 px(0.)
12799 };
12800
12801 let right_padding = if gutter_settings.folds && show_line_numbers {
12802 em_width * 4.0
12803 } else if gutter_settings.folds {
12804 em_width * 3.0
12805 } else if show_line_numbers {
12806 em_width
12807 } else {
12808 px(0.)
12809 };
12810
12811 GutterDimensions {
12812 left_padding,
12813 right_padding,
12814 width: line_gutter_width + left_padding + right_padding,
12815 margin: -descent,
12816 git_blame_entries_width,
12817 }
12818 }
12819
12820 pub fn render_fold_toggle(
12821 &self,
12822 buffer_row: MultiBufferRow,
12823 row_contains_cursor: bool,
12824 editor: View<Editor>,
12825 cx: &mut WindowContext,
12826 ) -> Option<AnyElement> {
12827 let folded = self.is_line_folded(buffer_row);
12828
12829 if let Some(crease) = self
12830 .crease_snapshot
12831 .query_row(buffer_row, &self.buffer_snapshot)
12832 {
12833 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
12834 if folded {
12835 editor.update(cx, |editor, cx| {
12836 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
12837 });
12838 } else {
12839 editor.update(cx, |editor, cx| {
12840 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
12841 });
12842 }
12843 });
12844
12845 Some((crease.render_toggle)(
12846 buffer_row,
12847 folded,
12848 toggle_callback,
12849 cx,
12850 ))
12851 } else if folded
12852 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
12853 {
12854 Some(
12855 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
12856 .selected(folded)
12857 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
12858 if folded {
12859 this.unfold_at(&UnfoldAt { buffer_row }, cx);
12860 } else {
12861 this.fold_at(&FoldAt { buffer_row }, cx);
12862 }
12863 }))
12864 .into_any_element(),
12865 )
12866 } else {
12867 None
12868 }
12869 }
12870
12871 pub fn render_crease_trailer(
12872 &self,
12873 buffer_row: MultiBufferRow,
12874 cx: &mut WindowContext,
12875 ) -> Option<AnyElement> {
12876 let folded = self.is_line_folded(buffer_row);
12877 let crease = self
12878 .crease_snapshot
12879 .query_row(buffer_row, &self.buffer_snapshot)?;
12880 Some((crease.render_trailer)(buffer_row, folded, cx))
12881 }
12882}
12883
12884impl Deref for EditorSnapshot {
12885 type Target = DisplaySnapshot;
12886
12887 fn deref(&self) -> &Self::Target {
12888 &self.display_snapshot
12889 }
12890}
12891
12892#[derive(Clone, Debug, PartialEq, Eq)]
12893pub enum EditorEvent {
12894 InputIgnored {
12895 text: Arc<str>,
12896 },
12897 InputHandled {
12898 utf16_range_to_replace: Option<Range<isize>>,
12899 text: Arc<str>,
12900 },
12901 ExcerptsAdded {
12902 buffer: Model<Buffer>,
12903 predecessor: ExcerptId,
12904 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
12905 },
12906 ExcerptsRemoved {
12907 ids: Vec<ExcerptId>,
12908 },
12909 ExcerptsEdited {
12910 ids: Vec<ExcerptId>,
12911 },
12912 ExcerptsExpanded {
12913 ids: Vec<ExcerptId>,
12914 },
12915 BufferEdited,
12916 Edited {
12917 transaction_id: clock::Lamport,
12918 },
12919 Reparsed(BufferId),
12920 Focused,
12921 FocusedIn,
12922 Blurred,
12923 DirtyChanged,
12924 Saved,
12925 TitleChanged,
12926 DiffBaseChanged,
12927 SelectionsChanged {
12928 local: bool,
12929 },
12930 ScrollPositionChanged {
12931 local: bool,
12932 autoscroll: bool,
12933 },
12934 Closed,
12935 TransactionUndone {
12936 transaction_id: clock::Lamport,
12937 },
12938 TransactionBegun {
12939 transaction_id: clock::Lamport,
12940 },
12941}
12942
12943impl EventEmitter<EditorEvent> for Editor {}
12944
12945impl FocusableView for Editor {
12946 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
12947 self.focus_handle.clone()
12948 }
12949}
12950
12951impl Render for Editor {
12952 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
12953 let settings = ThemeSettings::get_global(cx);
12954
12955 let text_style = match self.mode {
12956 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
12957 color: cx.theme().colors().editor_foreground,
12958 font_family: settings.ui_font.family.clone(),
12959 font_features: settings.ui_font.features.clone(),
12960 font_fallbacks: settings.ui_font.fallbacks.clone(),
12961 font_size: rems(0.875).into(),
12962 font_weight: settings.ui_font.weight,
12963 line_height: relative(settings.buffer_line_height.value()),
12964 ..Default::default()
12965 },
12966 EditorMode::Full => TextStyle {
12967 color: cx.theme().colors().editor_foreground,
12968 font_family: settings.buffer_font.family.clone(),
12969 font_features: settings.buffer_font.features.clone(),
12970 font_fallbacks: settings.buffer_font.fallbacks.clone(),
12971 font_size: settings.buffer_font_size(cx).into(),
12972 font_weight: settings.buffer_font.weight,
12973 line_height: relative(settings.buffer_line_height.value()),
12974 ..Default::default()
12975 },
12976 };
12977
12978 let background = match self.mode {
12979 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
12980 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
12981 EditorMode::Full => cx.theme().colors().editor_background,
12982 };
12983
12984 EditorElement::new(
12985 cx.view(),
12986 EditorStyle {
12987 background,
12988 local_player: cx.theme().players().local(),
12989 text: text_style,
12990 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
12991 syntax: cx.theme().syntax().clone(),
12992 status: cx.theme().status().clone(),
12993 inlay_hints_style: make_inlay_hints_style(cx),
12994 suggestions_style: HighlightStyle {
12995 color: Some(cx.theme().status().predictive),
12996 ..HighlightStyle::default()
12997 },
12998 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
12999 },
13000 )
13001 }
13002}
13003
13004impl ViewInputHandler for Editor {
13005 fn text_for_range(
13006 &mut self,
13007 range_utf16: Range<usize>,
13008 cx: &mut ViewContext<Self>,
13009 ) -> Option<String> {
13010 Some(
13011 self.buffer
13012 .read(cx)
13013 .read(cx)
13014 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
13015 .collect(),
13016 )
13017 }
13018
13019 fn selected_text_range(
13020 &mut self,
13021 ignore_disabled_input: bool,
13022 cx: &mut ViewContext<Self>,
13023 ) -> Option<UTF16Selection> {
13024 // Prevent the IME menu from appearing when holding down an alphabetic key
13025 // while input is disabled.
13026 if !ignore_disabled_input && !self.input_enabled {
13027 return None;
13028 }
13029
13030 let selection = self.selections.newest::<OffsetUtf16>(cx);
13031 let range = selection.range();
13032
13033 Some(UTF16Selection {
13034 range: range.start.0..range.end.0,
13035 reversed: selection.reversed,
13036 })
13037 }
13038
13039 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
13040 let snapshot = self.buffer.read(cx).read(cx);
13041 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
13042 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
13043 }
13044
13045 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
13046 self.clear_highlights::<InputComposition>(cx);
13047 self.ime_transaction.take();
13048 }
13049
13050 fn replace_text_in_range(
13051 &mut self,
13052 range_utf16: Option<Range<usize>>,
13053 text: &str,
13054 cx: &mut ViewContext<Self>,
13055 ) {
13056 if !self.input_enabled {
13057 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13058 return;
13059 }
13060
13061 self.transact(cx, |this, cx| {
13062 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
13063 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13064 Some(this.selection_replacement_ranges(range_utf16, cx))
13065 } else {
13066 this.marked_text_ranges(cx)
13067 };
13068
13069 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
13070 let newest_selection_id = this.selections.newest_anchor().id;
13071 this.selections
13072 .all::<OffsetUtf16>(cx)
13073 .iter()
13074 .zip(ranges_to_replace.iter())
13075 .find_map(|(selection, range)| {
13076 if selection.id == newest_selection_id {
13077 Some(
13078 (range.start.0 as isize - selection.head().0 as isize)
13079 ..(range.end.0 as isize - selection.head().0 as isize),
13080 )
13081 } else {
13082 None
13083 }
13084 })
13085 });
13086
13087 cx.emit(EditorEvent::InputHandled {
13088 utf16_range_to_replace: range_to_replace,
13089 text: text.into(),
13090 });
13091
13092 if let Some(new_selected_ranges) = new_selected_ranges {
13093 this.change_selections(None, cx, |selections| {
13094 selections.select_ranges(new_selected_ranges)
13095 });
13096 this.backspace(&Default::default(), cx);
13097 }
13098
13099 this.handle_input(text, cx);
13100 });
13101
13102 if let Some(transaction) = self.ime_transaction {
13103 self.buffer.update(cx, |buffer, cx| {
13104 buffer.group_until_transaction(transaction, cx);
13105 });
13106 }
13107
13108 self.unmark_text(cx);
13109 }
13110
13111 fn replace_and_mark_text_in_range(
13112 &mut self,
13113 range_utf16: Option<Range<usize>>,
13114 text: &str,
13115 new_selected_range_utf16: Option<Range<usize>>,
13116 cx: &mut ViewContext<Self>,
13117 ) {
13118 if !self.input_enabled {
13119 return;
13120 }
13121
13122 let transaction = self.transact(cx, |this, cx| {
13123 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
13124 let snapshot = this.buffer.read(cx).read(cx);
13125 if let Some(relative_range_utf16) = range_utf16.as_ref() {
13126 for marked_range in &mut marked_ranges {
13127 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
13128 marked_range.start.0 += relative_range_utf16.start;
13129 marked_range.start =
13130 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
13131 marked_range.end =
13132 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
13133 }
13134 }
13135 Some(marked_ranges)
13136 } else if let Some(range_utf16) = range_utf16 {
13137 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13138 Some(this.selection_replacement_ranges(range_utf16, cx))
13139 } else {
13140 None
13141 };
13142
13143 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
13144 let newest_selection_id = this.selections.newest_anchor().id;
13145 this.selections
13146 .all::<OffsetUtf16>(cx)
13147 .iter()
13148 .zip(ranges_to_replace.iter())
13149 .find_map(|(selection, range)| {
13150 if selection.id == newest_selection_id {
13151 Some(
13152 (range.start.0 as isize - selection.head().0 as isize)
13153 ..(range.end.0 as isize - selection.head().0 as isize),
13154 )
13155 } else {
13156 None
13157 }
13158 })
13159 });
13160
13161 cx.emit(EditorEvent::InputHandled {
13162 utf16_range_to_replace: range_to_replace,
13163 text: text.into(),
13164 });
13165
13166 if let Some(ranges) = ranges_to_replace {
13167 this.change_selections(None, cx, |s| s.select_ranges(ranges));
13168 }
13169
13170 let marked_ranges = {
13171 let snapshot = this.buffer.read(cx).read(cx);
13172 this.selections
13173 .disjoint_anchors()
13174 .iter()
13175 .map(|selection| {
13176 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
13177 })
13178 .collect::<Vec<_>>()
13179 };
13180
13181 if text.is_empty() {
13182 this.unmark_text(cx);
13183 } else {
13184 this.highlight_text::<InputComposition>(
13185 marked_ranges.clone(),
13186 HighlightStyle {
13187 underline: Some(UnderlineStyle {
13188 thickness: px(1.),
13189 color: None,
13190 wavy: false,
13191 }),
13192 ..Default::default()
13193 },
13194 cx,
13195 );
13196 }
13197
13198 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
13199 let use_autoclose = this.use_autoclose;
13200 let use_auto_surround = this.use_auto_surround;
13201 this.set_use_autoclose(false);
13202 this.set_use_auto_surround(false);
13203 this.handle_input(text, cx);
13204 this.set_use_autoclose(use_autoclose);
13205 this.set_use_auto_surround(use_auto_surround);
13206
13207 if let Some(new_selected_range) = new_selected_range_utf16 {
13208 let snapshot = this.buffer.read(cx).read(cx);
13209 let new_selected_ranges = marked_ranges
13210 .into_iter()
13211 .map(|marked_range| {
13212 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
13213 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
13214 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
13215 snapshot.clip_offset_utf16(new_start, Bias::Left)
13216 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
13217 })
13218 .collect::<Vec<_>>();
13219
13220 drop(snapshot);
13221 this.change_selections(None, cx, |selections| {
13222 selections.select_ranges(new_selected_ranges)
13223 });
13224 }
13225 });
13226
13227 self.ime_transaction = self.ime_transaction.or(transaction);
13228 if let Some(transaction) = self.ime_transaction {
13229 self.buffer.update(cx, |buffer, cx| {
13230 buffer.group_until_transaction(transaction, cx);
13231 });
13232 }
13233
13234 if self.text_highlights::<InputComposition>(cx).is_none() {
13235 self.ime_transaction.take();
13236 }
13237 }
13238
13239 fn bounds_for_range(
13240 &mut self,
13241 range_utf16: Range<usize>,
13242 element_bounds: gpui::Bounds<Pixels>,
13243 cx: &mut ViewContext<Self>,
13244 ) -> Option<gpui::Bounds<Pixels>> {
13245 let text_layout_details = self.text_layout_details(cx);
13246 let style = &text_layout_details.editor_style;
13247 let font_id = cx.text_system().resolve_font(&style.text.font());
13248 let font_size = style.text.font_size.to_pixels(cx.rem_size());
13249 let line_height = style.text.line_height_in_pixels(cx.rem_size());
13250
13251 let em_width = cx
13252 .text_system()
13253 .typographic_bounds(font_id, font_size, 'm')
13254 .unwrap()
13255 .size
13256 .width;
13257
13258 let snapshot = self.snapshot(cx);
13259 let scroll_position = snapshot.scroll_position();
13260 let scroll_left = scroll_position.x * em_width;
13261
13262 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
13263 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
13264 + self.gutter_dimensions.width;
13265 let y = line_height * (start.row().as_f32() - scroll_position.y);
13266
13267 Some(Bounds {
13268 origin: element_bounds.origin + point(x, y),
13269 size: size(em_width, line_height),
13270 })
13271 }
13272}
13273
13274trait SelectionExt {
13275 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
13276 fn spanned_rows(
13277 &self,
13278 include_end_if_at_line_start: bool,
13279 map: &DisplaySnapshot,
13280 ) -> Range<MultiBufferRow>;
13281}
13282
13283impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
13284 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
13285 let start = self
13286 .start
13287 .to_point(&map.buffer_snapshot)
13288 .to_display_point(map);
13289 let end = self
13290 .end
13291 .to_point(&map.buffer_snapshot)
13292 .to_display_point(map);
13293 if self.reversed {
13294 end..start
13295 } else {
13296 start..end
13297 }
13298 }
13299
13300 fn spanned_rows(
13301 &self,
13302 include_end_if_at_line_start: bool,
13303 map: &DisplaySnapshot,
13304 ) -> Range<MultiBufferRow> {
13305 let start = self.start.to_point(&map.buffer_snapshot);
13306 let mut end = self.end.to_point(&map.buffer_snapshot);
13307 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
13308 end.row -= 1;
13309 }
13310
13311 let buffer_start = map.prev_line_boundary(start).0;
13312 let buffer_end = map.next_line_boundary(end).0;
13313 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
13314 }
13315}
13316
13317impl<T: InvalidationRegion> InvalidationStack<T> {
13318 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
13319 where
13320 S: Clone + ToOffset,
13321 {
13322 while let Some(region) = self.last() {
13323 let all_selections_inside_invalidation_ranges =
13324 if selections.len() == region.ranges().len() {
13325 selections
13326 .iter()
13327 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
13328 .all(|(selection, invalidation_range)| {
13329 let head = selection.head().to_offset(buffer);
13330 invalidation_range.start <= head && invalidation_range.end >= head
13331 })
13332 } else {
13333 false
13334 };
13335
13336 if all_selections_inside_invalidation_ranges {
13337 break;
13338 } else {
13339 self.pop();
13340 }
13341 }
13342 }
13343}
13344
13345impl<T> Default for InvalidationStack<T> {
13346 fn default() -> Self {
13347 Self(Default::default())
13348 }
13349}
13350
13351impl<T> Deref for InvalidationStack<T> {
13352 type Target = Vec<T>;
13353
13354 fn deref(&self) -> &Self::Target {
13355 &self.0
13356 }
13357}
13358
13359impl<T> DerefMut for InvalidationStack<T> {
13360 fn deref_mut(&mut self) -> &mut Self::Target {
13361 &mut self.0
13362 }
13363}
13364
13365impl InvalidationRegion for SnippetState {
13366 fn ranges(&self) -> &[Range<Anchor>] {
13367 &self.ranges[self.active_index]
13368 }
13369}
13370
13371pub fn diagnostic_block_renderer(
13372 diagnostic: Diagnostic,
13373 max_message_rows: Option<u8>,
13374 allow_closing: bool,
13375 _is_valid: bool,
13376) -> RenderBlock {
13377 let (text_without_backticks, code_ranges) =
13378 highlight_diagnostic_message(&diagnostic, max_message_rows);
13379
13380 Box::new(move |cx: &mut BlockContext| {
13381 let group_id: SharedString = cx.block_id.to_string().into();
13382
13383 let mut text_style = cx.text_style().clone();
13384 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
13385 let theme_settings = ThemeSettings::get_global(cx);
13386 text_style.font_family = theme_settings.buffer_font.family.clone();
13387 text_style.font_style = theme_settings.buffer_font.style;
13388 text_style.font_features = theme_settings.buffer_font.features.clone();
13389 text_style.font_weight = theme_settings.buffer_font.weight;
13390
13391 let multi_line_diagnostic = diagnostic.message.contains('\n');
13392
13393 let buttons = |diagnostic: &Diagnostic, block_id: BlockId| {
13394 if multi_line_diagnostic {
13395 v_flex()
13396 } else {
13397 h_flex()
13398 }
13399 .when(allow_closing, |div| {
13400 div.children(diagnostic.is_primary.then(|| {
13401 IconButton::new(("close-block", EntityId::from(block_id)), IconName::XCircle)
13402 .icon_color(Color::Muted)
13403 .size(ButtonSize::Compact)
13404 .style(ButtonStyle::Transparent)
13405 .visible_on_hover(group_id.clone())
13406 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
13407 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
13408 }))
13409 })
13410 .child(
13411 IconButton::new(("copy-block", EntityId::from(block_id)), IconName::Copy)
13412 .icon_color(Color::Muted)
13413 .size(ButtonSize::Compact)
13414 .style(ButtonStyle::Transparent)
13415 .visible_on_hover(group_id.clone())
13416 .on_click({
13417 let message = diagnostic.message.clone();
13418 move |_click, cx| {
13419 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
13420 }
13421 })
13422 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
13423 )
13424 };
13425
13426 let icon_size = buttons(&diagnostic, cx.block_id)
13427 .into_any_element()
13428 .layout_as_root(AvailableSpace::min_size(), cx);
13429
13430 h_flex()
13431 .id(cx.block_id)
13432 .group(group_id.clone())
13433 .relative()
13434 .size_full()
13435 .pl(cx.gutter_dimensions.width)
13436 .w(cx.max_width + cx.gutter_dimensions.width)
13437 .child(
13438 div()
13439 .flex()
13440 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
13441 .flex_shrink(),
13442 )
13443 .child(buttons(&diagnostic, cx.block_id))
13444 .child(div().flex().flex_shrink_0().child(
13445 StyledText::new(text_without_backticks.clone()).with_highlights(
13446 &text_style,
13447 code_ranges.iter().map(|range| {
13448 (
13449 range.clone(),
13450 HighlightStyle {
13451 font_weight: Some(FontWeight::BOLD),
13452 ..Default::default()
13453 },
13454 )
13455 }),
13456 ),
13457 ))
13458 .into_any_element()
13459 })
13460}
13461
13462pub fn highlight_diagnostic_message(
13463 diagnostic: &Diagnostic,
13464 mut max_message_rows: Option<u8>,
13465) -> (SharedString, Vec<Range<usize>>) {
13466 let mut text_without_backticks = String::new();
13467 let mut code_ranges = Vec::new();
13468
13469 if let Some(source) = &diagnostic.source {
13470 text_without_backticks.push_str(source);
13471 code_ranges.push(0..source.len());
13472 text_without_backticks.push_str(": ");
13473 }
13474
13475 let mut prev_offset = 0;
13476 let mut in_code_block = false;
13477 let has_row_limit = max_message_rows.is_some();
13478 let mut newline_indices = diagnostic
13479 .message
13480 .match_indices('\n')
13481 .filter(|_| has_row_limit)
13482 .map(|(ix, _)| ix)
13483 .fuse()
13484 .peekable();
13485
13486 for (quote_ix, _) in diagnostic
13487 .message
13488 .match_indices('`')
13489 .chain([(diagnostic.message.len(), "")])
13490 {
13491 let mut first_newline_ix = None;
13492 let mut last_newline_ix = None;
13493 while let Some(newline_ix) = newline_indices.peek() {
13494 if *newline_ix < quote_ix {
13495 if first_newline_ix.is_none() {
13496 first_newline_ix = Some(*newline_ix);
13497 }
13498 last_newline_ix = Some(*newline_ix);
13499
13500 if let Some(rows_left) = &mut max_message_rows {
13501 if *rows_left == 0 {
13502 break;
13503 } else {
13504 *rows_left -= 1;
13505 }
13506 }
13507 let _ = newline_indices.next();
13508 } else {
13509 break;
13510 }
13511 }
13512 let prev_len = text_without_backticks.len();
13513 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
13514 text_without_backticks.push_str(new_text);
13515 if in_code_block {
13516 code_ranges.push(prev_len..text_without_backticks.len());
13517 }
13518 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
13519 in_code_block = !in_code_block;
13520 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
13521 text_without_backticks.push_str("...");
13522 break;
13523 }
13524 }
13525
13526 (text_without_backticks.into(), code_ranges)
13527}
13528
13529fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
13530 match severity {
13531 DiagnosticSeverity::ERROR => colors.error,
13532 DiagnosticSeverity::WARNING => colors.warning,
13533 DiagnosticSeverity::INFORMATION => colors.info,
13534 DiagnosticSeverity::HINT => colors.info,
13535 _ => colors.ignored,
13536 }
13537}
13538
13539pub fn styled_runs_for_code_label<'a>(
13540 label: &'a CodeLabel,
13541 syntax_theme: &'a theme::SyntaxTheme,
13542) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
13543 let fade_out = HighlightStyle {
13544 fade_out: Some(0.35),
13545 ..Default::default()
13546 };
13547
13548 let mut prev_end = label.filter_range.end;
13549 label
13550 .runs
13551 .iter()
13552 .enumerate()
13553 .flat_map(move |(ix, (range, highlight_id))| {
13554 let style = if let Some(style) = highlight_id.style(syntax_theme) {
13555 style
13556 } else {
13557 return Default::default();
13558 };
13559 let mut muted_style = style;
13560 muted_style.highlight(fade_out);
13561
13562 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
13563 if range.start >= label.filter_range.end {
13564 if range.start > prev_end {
13565 runs.push((prev_end..range.start, fade_out));
13566 }
13567 runs.push((range.clone(), muted_style));
13568 } else if range.end <= label.filter_range.end {
13569 runs.push((range.clone(), style));
13570 } else {
13571 runs.push((range.start..label.filter_range.end, style));
13572 runs.push((label.filter_range.end..range.end, muted_style));
13573 }
13574 prev_end = cmp::max(prev_end, range.end);
13575
13576 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
13577 runs.push((prev_end..label.text.len(), fade_out));
13578 }
13579
13580 runs
13581 })
13582}
13583
13584pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
13585 let mut prev_index = 0;
13586 let mut prev_codepoint: Option<char> = None;
13587 text.char_indices()
13588 .chain([(text.len(), '\0')])
13589 .filter_map(move |(index, codepoint)| {
13590 let prev_codepoint = prev_codepoint.replace(codepoint)?;
13591 let is_boundary = index == text.len()
13592 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
13593 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
13594 if is_boundary {
13595 let chunk = &text[prev_index..index];
13596 prev_index = index;
13597 Some(chunk)
13598 } else {
13599 None
13600 }
13601 })
13602}
13603
13604pub trait RangeToAnchorExt: Sized {
13605 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
13606
13607 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
13608 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
13609 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
13610 }
13611}
13612
13613impl<T: ToOffset> RangeToAnchorExt for Range<T> {
13614 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
13615 let start_offset = self.start.to_offset(snapshot);
13616 let end_offset = self.end.to_offset(snapshot);
13617 if start_offset == end_offset {
13618 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
13619 } else {
13620 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
13621 }
13622 }
13623}
13624
13625pub trait RowExt {
13626 fn as_f32(&self) -> f32;
13627
13628 fn next_row(&self) -> Self;
13629
13630 fn previous_row(&self) -> Self;
13631
13632 fn minus(&self, other: Self) -> u32;
13633}
13634
13635impl RowExt for DisplayRow {
13636 fn as_f32(&self) -> f32 {
13637 self.0 as f32
13638 }
13639
13640 fn next_row(&self) -> Self {
13641 Self(self.0 + 1)
13642 }
13643
13644 fn previous_row(&self) -> Self {
13645 Self(self.0.saturating_sub(1))
13646 }
13647
13648 fn minus(&self, other: Self) -> u32 {
13649 self.0 - other.0
13650 }
13651}
13652
13653impl RowExt for MultiBufferRow {
13654 fn as_f32(&self) -> f32 {
13655 self.0 as f32
13656 }
13657
13658 fn next_row(&self) -> Self {
13659 Self(self.0 + 1)
13660 }
13661
13662 fn previous_row(&self) -> Self {
13663 Self(self.0.saturating_sub(1))
13664 }
13665
13666 fn minus(&self, other: Self) -> u32 {
13667 self.0 - other.0
13668 }
13669}
13670
13671trait RowRangeExt {
13672 type Row;
13673
13674 fn len(&self) -> usize;
13675
13676 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
13677}
13678
13679impl RowRangeExt for Range<MultiBufferRow> {
13680 type Row = MultiBufferRow;
13681
13682 fn len(&self) -> usize {
13683 (self.end.0 - self.start.0) as usize
13684 }
13685
13686 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
13687 (self.start.0..self.end.0).map(MultiBufferRow)
13688 }
13689}
13690
13691impl RowRangeExt for Range<DisplayRow> {
13692 type Row = DisplayRow;
13693
13694 fn len(&self) -> usize {
13695 (self.end.0 - self.start.0) as usize
13696 }
13697
13698 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
13699 (self.start.0..self.end.0).map(DisplayRow)
13700 }
13701}
13702
13703fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
13704 if hunk.diff_base_byte_range.is_empty() {
13705 DiffHunkStatus::Added
13706 } else if hunk.associated_range.is_empty() {
13707 DiffHunkStatus::Removed
13708 } else {
13709 DiffHunkStatus::Modified
13710 }
13711}
13712
13713/// If select range has more than one line, we
13714/// just point the cursor to range.start.
13715fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
13716 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
13717 range
13718 } else {
13719 range.start..range.start
13720 }
13721}