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 task::{ResolvedTask, TaskTemplate, TaskVariables};
102
103use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
104pub use lsp::CompletionContext;
105use lsp::{
106 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
107 LanguageServerId,
108};
109use mouse_context_menu::MouseContextMenu;
110use movement::TextLayoutDetails;
111pub use multi_buffer::{
112 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
113 ToPoint,
114};
115use multi_buffer::{ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16};
116use ordered_float::OrderedFloat;
117use parking_lot::{Mutex, RwLock};
118use project::project_settings::{GitGutterSetting, ProjectSettings};
119use project::{
120 CodeAction, Completion, CompletionIntent, FormatTrigger, Item, Location, Project, ProjectPath,
121 ProjectTransaction, TaskSourceKind,
122};
123use rand::prelude::*;
124use rpc::{proto::*, ErrorExt};
125use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
126use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
127use serde::{Deserialize, Serialize};
128use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
129use smallvec::SmallVec;
130use snippet::Snippet;
131use std::{
132 any::TypeId,
133 borrow::Cow,
134 cell::RefCell,
135 cmp::{self, Ordering, Reverse},
136 mem,
137 num::NonZeroU32,
138 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
139 path::{Path, PathBuf},
140 rc::Rc,
141 sync::Arc,
142 time::{Duration, Instant},
143};
144pub use sum_tree::Bias;
145use sum_tree::TreeMap;
146use text::{BufferId, OffsetUtf16, Rope};
147use theme::{
148 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
149 ThemeColors, ThemeSettings,
150};
151use ui::{
152 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
153 ListItem, Popover, Tooltip,
154};
155use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
156use workspace::item::{ItemHandle, PreviewTabsSettings};
157use workspace::notifications::{DetachAndPromptErr, NotificationId};
158use workspace::{
159 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
160};
161use workspace::{OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
162
163use crate::hover_links::find_url;
164use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
165
166pub const FILE_HEADER_HEIGHT: u32 = 1;
167pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
168pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
169pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
170const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
171const MAX_LINE_LEN: usize = 1024;
172const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
173const MAX_SELECTION_HISTORY_LEN: usize = 1024;
174pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
175#[doc(hidden)]
176pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
177#[doc(hidden)]
178pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
179
180pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
181pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
182
183pub fn render_parsed_markdown(
184 element_id: impl Into<ElementId>,
185 parsed: &language::ParsedMarkdown,
186 editor_style: &EditorStyle,
187 workspace: Option<WeakView<Workspace>>,
188 cx: &mut WindowContext,
189) -> InteractiveText {
190 let code_span_background_color = cx
191 .theme()
192 .colors()
193 .editor_document_highlight_read_background;
194
195 let highlights = gpui::combine_highlights(
196 parsed.highlights.iter().filter_map(|(range, highlight)| {
197 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
198 Some((range.clone(), highlight))
199 }),
200 parsed
201 .regions
202 .iter()
203 .zip(&parsed.region_ranges)
204 .filter_map(|(region, range)| {
205 if region.code {
206 Some((
207 range.clone(),
208 HighlightStyle {
209 background_color: Some(code_span_background_color),
210 ..Default::default()
211 },
212 ))
213 } else {
214 None
215 }
216 }),
217 );
218
219 let mut links = Vec::new();
220 let mut link_ranges = Vec::new();
221 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
222 if let Some(link) = region.link.clone() {
223 links.push(link);
224 link_ranges.push(range.clone());
225 }
226 }
227
228 InteractiveText::new(
229 element_id,
230 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
231 )
232 .on_click(link_ranges, move |clicked_range_ix, cx| {
233 match &links[clicked_range_ix] {
234 markdown::Link::Web { url } => cx.open_url(url),
235 markdown::Link::Path { path } => {
236 if let Some(workspace) = &workspace {
237 _ = workspace.update(cx, |workspace, cx| {
238 workspace.open_abs_path(path.clone(), false, cx).detach();
239 });
240 }
241 }
242 }
243 })
244}
245
246#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
247pub(crate) enum InlayId {
248 Suggestion(usize),
249 Hint(usize),
250}
251
252impl InlayId {
253 fn id(&self) -> usize {
254 match self {
255 Self::Suggestion(id) => *id,
256 Self::Hint(id) => *id,
257 }
258 }
259}
260
261enum DiffRowHighlight {}
262enum DocumentHighlightRead {}
263enum DocumentHighlightWrite {}
264enum InputComposition {}
265
266#[derive(Copy, Clone, PartialEq, Eq)]
267pub enum Direction {
268 Prev,
269 Next,
270}
271
272#[derive(Debug, Copy, Clone, PartialEq, Eq)]
273pub enum Navigated {
274 Yes,
275 No,
276}
277
278impl Navigated {
279 pub fn from_bool(yes: bool) -> Navigated {
280 if yes {
281 Navigated::Yes
282 } else {
283 Navigated::No
284 }
285 }
286}
287
288pub fn init_settings(cx: &mut AppContext) {
289 EditorSettings::register(cx);
290}
291
292pub fn init(cx: &mut AppContext) {
293 init_settings(cx);
294
295 workspace::register_project_item::<Editor>(cx);
296 workspace::FollowableViewRegistry::register::<Editor>(cx);
297 workspace::register_serializable_item::<Editor>(cx);
298
299 cx.observe_new_views(
300 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
301 workspace.register_action(Editor::new_file);
302 workspace.register_action(Editor::new_file_vertical);
303 workspace.register_action(Editor::new_file_horizontal);
304 },
305 )
306 .detach();
307
308 cx.on_action(move |_: &workspace::NewFile, cx| {
309 let app_state = workspace::AppState::global(cx);
310 if let Some(app_state) = app_state.upgrade() {
311 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
312 Editor::new_file(workspace, &Default::default(), cx)
313 })
314 .detach();
315 }
316 });
317 cx.on_action(move |_: &workspace::NewWindow, cx| {
318 let app_state = workspace::AppState::global(cx);
319 if let Some(app_state) = app_state.upgrade() {
320 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
321 Editor::new_file(workspace, &Default::default(), cx)
322 })
323 .detach();
324 }
325 });
326}
327
328pub struct SearchWithinRange;
329
330trait InvalidationRegion {
331 fn ranges(&self) -> &[Range<Anchor>];
332}
333
334#[derive(Clone, Debug, PartialEq)]
335pub enum SelectPhase {
336 Begin {
337 position: DisplayPoint,
338 add: bool,
339 click_count: usize,
340 },
341 BeginColumnar {
342 position: DisplayPoint,
343 reset: bool,
344 goal_column: u32,
345 },
346 Extend {
347 position: DisplayPoint,
348 click_count: usize,
349 },
350 Update {
351 position: DisplayPoint,
352 goal_column: u32,
353 scroll_delta: gpui::Point<f32>,
354 },
355 End,
356}
357
358#[derive(Clone, Debug)]
359pub enum SelectMode {
360 Character,
361 Word(Range<Anchor>),
362 Line(Range<Anchor>),
363 All,
364}
365
366#[derive(Copy, Clone, PartialEq, Eq, Debug)]
367pub enum EditorMode {
368 SingleLine { auto_width: bool },
369 AutoHeight { max_lines: usize },
370 Full,
371}
372
373#[derive(Clone, Debug)]
374pub enum SoftWrap {
375 None,
376 PreferLine,
377 EditorWidth,
378 Column(u32),
379 Bounded(u32),
380}
381
382#[derive(Clone)]
383pub struct EditorStyle {
384 pub background: Hsla,
385 pub local_player: PlayerColor,
386 pub text: TextStyle,
387 pub scrollbar_width: Pixels,
388 pub syntax: Arc<SyntaxTheme>,
389 pub status: StatusColors,
390 pub inlay_hints_style: HighlightStyle,
391 pub suggestions_style: HighlightStyle,
392 pub unnecessary_code_fade: f32,
393}
394
395impl Default for EditorStyle {
396 fn default() -> Self {
397 Self {
398 background: Hsla::default(),
399 local_player: PlayerColor::default(),
400 text: TextStyle::default(),
401 scrollbar_width: Pixels::default(),
402 syntax: Default::default(),
403 // HACK: Status colors don't have a real default.
404 // We should look into removing the status colors from the editor
405 // style and retrieve them directly from the theme.
406 status: StatusColors::dark(),
407 inlay_hints_style: HighlightStyle::default(),
408 suggestions_style: HighlightStyle::default(),
409 unnecessary_code_fade: Default::default(),
410 }
411 }
412}
413
414type CompletionId = usize;
415
416#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
417struct EditorActionId(usize);
418
419impl EditorActionId {
420 pub fn post_inc(&mut self) -> Self {
421 let answer = self.0;
422
423 *self = Self(answer + 1);
424
425 Self(answer)
426 }
427}
428
429// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
430// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
431
432type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
433type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
434
435#[derive(Default)]
436struct ScrollbarMarkerState {
437 scrollbar_size: Size<Pixels>,
438 dirty: bool,
439 markers: Arc<[PaintQuad]>,
440 pending_refresh: Option<Task<Result<()>>>,
441}
442
443impl ScrollbarMarkerState {
444 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
445 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
446 }
447}
448
449#[derive(Clone, Debug)]
450struct RunnableTasks {
451 templates: Vec<(TaskSourceKind, TaskTemplate)>,
452 offset: MultiBufferOffset,
453 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
454 column: u32,
455 // Values of all named captures, including those starting with '_'
456 extra_variables: HashMap<String, String>,
457 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
458 context_range: Range<BufferOffset>,
459}
460
461#[derive(Clone)]
462struct ResolvedTasks {
463 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
464 position: Anchor,
465}
466#[derive(Copy, Clone, Debug)]
467struct MultiBufferOffset(usize);
468#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
469struct BufferOffset(usize);
470
471// Addons allow storing per-editor state in other crates (e.g. Vim)
472pub trait Addon: 'static {
473 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
474
475 fn to_any(&self) -> &dyn std::any::Any;
476}
477
478/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
479///
480/// See the [module level documentation](self) for more information.
481pub struct Editor {
482 focus_handle: FocusHandle,
483 last_focused_descendant: Option<WeakFocusHandle>,
484 /// The text buffer being edited
485 buffer: Model<MultiBuffer>,
486 /// Map of how text in the buffer should be displayed.
487 /// Handles soft wraps, folds, fake inlay text insertions, etc.
488 pub display_map: Model<DisplayMap>,
489 pub selections: SelectionsCollection,
490 pub scroll_manager: ScrollManager,
491 /// When inline assist editors are linked, they all render cursors because
492 /// typing enters text into each of them, even the ones that aren't focused.
493 pub(crate) show_cursor_when_unfocused: bool,
494 columnar_selection_tail: Option<Anchor>,
495 add_selections_state: Option<AddSelectionsState>,
496 select_next_state: Option<SelectNextState>,
497 select_prev_state: Option<SelectNextState>,
498 selection_history: SelectionHistory,
499 autoclose_regions: Vec<AutocloseRegion>,
500 snippet_stack: InvalidationStack<SnippetState>,
501 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
502 ime_transaction: Option<TransactionId>,
503 active_diagnostics: Option<ActiveDiagnosticGroup>,
504 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
505 project: Option<Model<Project>>,
506 completion_provider: Option<Box<dyn CompletionProvider>>,
507 collaboration_hub: Option<Box<dyn CollaborationHub>>,
508 blink_manager: Model<BlinkManager>,
509 show_cursor_names: bool,
510 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
511 pub show_local_selections: bool,
512 mode: EditorMode,
513 show_breadcrumbs: bool,
514 show_gutter: bool,
515 show_line_numbers: Option<bool>,
516 use_relative_line_numbers: Option<bool>,
517 show_git_diff_gutter: Option<bool>,
518 show_code_actions: Option<bool>,
519 show_runnables: Option<bool>,
520 show_wrap_guides: Option<bool>,
521 show_indent_guides: Option<bool>,
522 placeholder_text: Option<Arc<str>>,
523 highlight_order: usize,
524 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
525 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
526 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
527 scrollbar_marker_state: ScrollbarMarkerState,
528 active_indent_guides_state: ActiveIndentGuidesState,
529 nav_history: Option<ItemNavHistory>,
530 context_menu: RwLock<Option<ContextMenu>>,
531 mouse_context_menu: Option<MouseContextMenu>,
532 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
533 signature_help_state: SignatureHelpState,
534 auto_signature_help: Option<bool>,
535 find_all_references_task_sources: Vec<Anchor>,
536 next_completion_id: CompletionId,
537 completion_documentation_pre_resolve_debounce: DebouncedDelay,
538 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
539 code_actions_task: Option<Task<()>>,
540 document_highlights_task: Option<Task<()>>,
541 linked_editing_range_task: Option<Task<Option<()>>>,
542 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
543 pending_rename: Option<RenameState>,
544 searchable: bool,
545 cursor_shape: CursorShape,
546 current_line_highlight: Option<CurrentLineHighlight>,
547 collapse_matches: bool,
548 autoindent_mode: Option<AutoindentMode>,
549 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
550 input_enabled: bool,
551 use_modal_editing: bool,
552 read_only: bool,
553 leader_peer_id: Option<PeerId>,
554 remote_id: Option<ViewId>,
555 hover_state: HoverState,
556 gutter_hovered: bool,
557 hovered_link_state: Option<HoveredLinkState>,
558 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
559 active_inline_completion: Option<(Inlay, Option<Range<Anchor>>)>,
560 // enable_inline_completions is a switch that Vim can use to disable
561 // inline completions based on its mode.
562 enable_inline_completions: bool,
563 show_inline_completions_override: Option<bool>,
564 inlay_hint_cache: InlayHintCache,
565 expanded_hunks: ExpandedHunks,
566 next_inlay_id: usize,
567 _subscriptions: Vec<Subscription>,
568 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
569 gutter_dimensions: GutterDimensions,
570 style: Option<EditorStyle>,
571 next_editor_action_id: EditorActionId,
572 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
573 use_autoclose: bool,
574 use_auto_surround: bool,
575 auto_replace_emoji_shortcode: bool,
576 show_git_blame_gutter: bool,
577 show_git_blame_inline: bool,
578 show_git_blame_inline_delay_task: Option<Task<()>>,
579 git_blame_inline_enabled: bool,
580 serialize_dirty_buffers: bool,
581 show_selection_menu: Option<bool>,
582 blame: Option<Model<GitBlame>>,
583 blame_subscription: Option<Subscription>,
584 custom_context_menu: Option<
585 Box<
586 dyn 'static
587 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
588 >,
589 >,
590 last_bounds: Option<Bounds<Pixels>>,
591 expect_bounds_change: Option<Bounds<Pixels>>,
592 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
593 tasks_update_task: Option<Task<()>>,
594 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
595 file_header_size: u32,
596 breadcrumb_header: Option<String>,
597 focused_block: Option<FocusedBlock>,
598 next_scroll_position: NextScrollCursorCenterTopBottom,
599 addons: HashMap<TypeId, Box<dyn Addon>>,
600 _scroll_cursor_center_top_bottom_task: Task<()>,
601}
602
603#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
604enum NextScrollCursorCenterTopBottom {
605 #[default]
606 Center,
607 Top,
608 Bottom,
609}
610
611impl NextScrollCursorCenterTopBottom {
612 fn next(&self) -> Self {
613 match self {
614 Self::Center => Self::Top,
615 Self::Top => Self::Bottom,
616 Self::Bottom => Self::Center,
617 }
618 }
619}
620
621#[derive(Clone)]
622pub struct EditorSnapshot {
623 pub mode: EditorMode,
624 show_gutter: bool,
625 show_line_numbers: Option<bool>,
626 show_git_diff_gutter: Option<bool>,
627 show_code_actions: Option<bool>,
628 show_runnables: Option<bool>,
629 render_git_blame_gutter: bool,
630 pub display_snapshot: DisplaySnapshot,
631 pub placeholder_text: Option<Arc<str>>,
632 is_focused: bool,
633 scroll_anchor: ScrollAnchor,
634 ongoing_scroll: OngoingScroll,
635 current_line_highlight: CurrentLineHighlight,
636 gutter_hovered: bool,
637}
638
639const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
640
641#[derive(Default, Debug, Clone, Copy)]
642pub struct GutterDimensions {
643 pub left_padding: Pixels,
644 pub right_padding: Pixels,
645 pub width: Pixels,
646 pub margin: Pixels,
647 pub git_blame_entries_width: Option<Pixels>,
648}
649
650impl GutterDimensions {
651 /// The full width of the space taken up by the gutter.
652 pub fn full_width(&self) -> Pixels {
653 self.margin + self.width
654 }
655
656 /// The width of the space reserved for the fold indicators,
657 /// use alongside 'justify_end' and `gutter_width` to
658 /// right align content with the line numbers
659 pub fn fold_area_width(&self) -> Pixels {
660 self.margin + self.right_padding
661 }
662}
663
664#[derive(Debug)]
665pub struct RemoteSelection {
666 pub replica_id: ReplicaId,
667 pub selection: Selection<Anchor>,
668 pub cursor_shape: CursorShape,
669 pub peer_id: PeerId,
670 pub line_mode: bool,
671 pub participant_index: Option<ParticipantIndex>,
672 pub user_name: Option<SharedString>,
673}
674
675#[derive(Clone, Debug)]
676struct SelectionHistoryEntry {
677 selections: Arc<[Selection<Anchor>]>,
678 select_next_state: Option<SelectNextState>,
679 select_prev_state: Option<SelectNextState>,
680 add_selections_state: Option<AddSelectionsState>,
681}
682
683enum SelectionHistoryMode {
684 Normal,
685 Undoing,
686 Redoing,
687}
688
689#[derive(Clone, PartialEq, Eq, Hash)]
690struct HoveredCursor {
691 replica_id: u16,
692 selection_id: usize,
693}
694
695impl Default for SelectionHistoryMode {
696 fn default() -> Self {
697 Self::Normal
698 }
699}
700
701#[derive(Default)]
702struct SelectionHistory {
703 #[allow(clippy::type_complexity)]
704 selections_by_transaction:
705 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
706 mode: SelectionHistoryMode,
707 undo_stack: VecDeque<SelectionHistoryEntry>,
708 redo_stack: VecDeque<SelectionHistoryEntry>,
709}
710
711impl SelectionHistory {
712 fn insert_transaction(
713 &mut self,
714 transaction_id: TransactionId,
715 selections: Arc<[Selection<Anchor>]>,
716 ) {
717 self.selections_by_transaction
718 .insert(transaction_id, (selections, None));
719 }
720
721 #[allow(clippy::type_complexity)]
722 fn transaction(
723 &self,
724 transaction_id: TransactionId,
725 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
726 self.selections_by_transaction.get(&transaction_id)
727 }
728
729 #[allow(clippy::type_complexity)]
730 fn transaction_mut(
731 &mut self,
732 transaction_id: TransactionId,
733 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
734 self.selections_by_transaction.get_mut(&transaction_id)
735 }
736
737 fn push(&mut self, entry: SelectionHistoryEntry) {
738 if !entry.selections.is_empty() {
739 match self.mode {
740 SelectionHistoryMode::Normal => {
741 self.push_undo(entry);
742 self.redo_stack.clear();
743 }
744 SelectionHistoryMode::Undoing => self.push_redo(entry),
745 SelectionHistoryMode::Redoing => self.push_undo(entry),
746 }
747 }
748 }
749
750 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
751 if self
752 .undo_stack
753 .back()
754 .map_or(true, |e| e.selections != entry.selections)
755 {
756 self.undo_stack.push_back(entry);
757 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
758 self.undo_stack.pop_front();
759 }
760 }
761 }
762
763 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
764 if self
765 .redo_stack
766 .back()
767 .map_or(true, |e| e.selections != entry.selections)
768 {
769 self.redo_stack.push_back(entry);
770 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
771 self.redo_stack.pop_front();
772 }
773 }
774 }
775}
776
777struct RowHighlight {
778 index: usize,
779 range: RangeInclusive<Anchor>,
780 color: Option<Hsla>,
781 should_autoscroll: bool,
782}
783
784#[derive(Clone, Debug)]
785struct AddSelectionsState {
786 above: bool,
787 stack: Vec<usize>,
788}
789
790#[derive(Clone)]
791struct SelectNextState {
792 query: AhoCorasick,
793 wordwise: bool,
794 done: bool,
795}
796
797impl std::fmt::Debug for SelectNextState {
798 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
799 f.debug_struct(std::any::type_name::<Self>())
800 .field("wordwise", &self.wordwise)
801 .field("done", &self.done)
802 .finish()
803 }
804}
805
806#[derive(Debug)]
807struct AutocloseRegion {
808 selection_id: usize,
809 range: Range<Anchor>,
810 pair: BracketPair,
811}
812
813#[derive(Debug)]
814struct SnippetState {
815 ranges: Vec<Vec<Range<Anchor>>>,
816 active_index: usize,
817}
818
819#[doc(hidden)]
820pub struct RenameState {
821 pub range: Range<Anchor>,
822 pub old_name: Arc<str>,
823 pub editor: View<Editor>,
824 block_id: CustomBlockId,
825}
826
827struct InvalidationStack<T>(Vec<T>);
828
829struct RegisteredInlineCompletionProvider {
830 provider: Arc<dyn InlineCompletionProviderHandle>,
831 _subscription: Subscription,
832}
833
834enum ContextMenu {
835 Completions(CompletionsMenu),
836 CodeActions(CodeActionsMenu),
837}
838
839impl ContextMenu {
840 fn select_first(
841 &mut self,
842 project: Option<&Model<Project>>,
843 cx: &mut ViewContext<Editor>,
844 ) -> bool {
845 if self.visible() {
846 match self {
847 ContextMenu::Completions(menu) => menu.select_first(project, cx),
848 ContextMenu::CodeActions(menu) => menu.select_first(cx),
849 }
850 true
851 } else {
852 false
853 }
854 }
855
856 fn select_prev(
857 &mut self,
858 project: Option<&Model<Project>>,
859 cx: &mut ViewContext<Editor>,
860 ) -> bool {
861 if self.visible() {
862 match self {
863 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
864 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
865 }
866 true
867 } else {
868 false
869 }
870 }
871
872 fn select_next(
873 &mut self,
874 project: Option<&Model<Project>>,
875 cx: &mut ViewContext<Editor>,
876 ) -> bool {
877 if self.visible() {
878 match self {
879 ContextMenu::Completions(menu) => menu.select_next(project, cx),
880 ContextMenu::CodeActions(menu) => menu.select_next(cx),
881 }
882 true
883 } else {
884 false
885 }
886 }
887
888 fn select_last(
889 &mut self,
890 project: Option<&Model<Project>>,
891 cx: &mut ViewContext<Editor>,
892 ) -> bool {
893 if self.visible() {
894 match self {
895 ContextMenu::Completions(menu) => menu.select_last(project, cx),
896 ContextMenu::CodeActions(menu) => menu.select_last(cx),
897 }
898 true
899 } else {
900 false
901 }
902 }
903
904 fn visible(&self) -> bool {
905 match self {
906 ContextMenu::Completions(menu) => menu.visible(),
907 ContextMenu::CodeActions(menu) => menu.visible(),
908 }
909 }
910
911 fn render(
912 &self,
913 cursor_position: DisplayPoint,
914 style: &EditorStyle,
915 max_height: Pixels,
916 workspace: Option<WeakView<Workspace>>,
917 cx: &mut ViewContext<Editor>,
918 ) -> (ContextMenuOrigin, AnyElement) {
919 match self {
920 ContextMenu::Completions(menu) => (
921 ContextMenuOrigin::EditorPoint(cursor_position),
922 menu.render(style, max_height, workspace, cx),
923 ),
924 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
925 }
926 }
927}
928
929enum ContextMenuOrigin {
930 EditorPoint(DisplayPoint),
931 GutterIndicator(DisplayRow),
932}
933
934#[derive(Clone)]
935struct CompletionsMenu {
936 id: CompletionId,
937 sort_completions: bool,
938 initial_position: Anchor,
939 buffer: Model<Buffer>,
940 completions: Arc<RwLock<Box<[Completion]>>>,
941 match_candidates: Arc<[StringMatchCandidate]>,
942 matches: Arc<[StringMatch]>,
943 selected_item: usize,
944 scroll_handle: UniformListScrollHandle,
945 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
946}
947
948impl CompletionsMenu {
949 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
950 self.selected_item = 0;
951 self.scroll_handle.scroll_to_item(self.selected_item);
952 self.attempt_resolve_selected_completion_documentation(project, cx);
953 cx.notify();
954 }
955
956 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
957 if self.selected_item > 0 {
958 self.selected_item -= 1;
959 } else {
960 self.selected_item = self.matches.len() - 1;
961 }
962 self.scroll_handle.scroll_to_item(self.selected_item);
963 self.attempt_resolve_selected_completion_documentation(project, cx);
964 cx.notify();
965 }
966
967 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
968 if self.selected_item + 1 < self.matches.len() {
969 self.selected_item += 1;
970 } else {
971 self.selected_item = 0;
972 }
973 self.scroll_handle.scroll_to_item(self.selected_item);
974 self.attempt_resolve_selected_completion_documentation(project, cx);
975 cx.notify();
976 }
977
978 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
979 self.selected_item = self.matches.len() - 1;
980 self.scroll_handle.scroll_to_item(self.selected_item);
981 self.attempt_resolve_selected_completion_documentation(project, cx);
982 cx.notify();
983 }
984
985 fn pre_resolve_completion_documentation(
986 buffer: Model<Buffer>,
987 completions: Arc<RwLock<Box<[Completion]>>>,
988 matches: Arc<[StringMatch]>,
989 editor: &Editor,
990 cx: &mut ViewContext<Editor>,
991 ) -> Task<()> {
992 let settings = EditorSettings::get_global(cx);
993 if !settings.show_completion_documentation {
994 return Task::ready(());
995 }
996
997 let Some(provider) = editor.completion_provider.as_ref() else {
998 return Task::ready(());
999 };
1000
1001 let resolve_task = provider.resolve_completions(
1002 buffer,
1003 matches.iter().map(|m| m.candidate_id).collect(),
1004 completions.clone(),
1005 cx,
1006 );
1007
1008 cx.spawn(move |this, mut cx| async move {
1009 if let Some(true) = resolve_task.await.log_err() {
1010 this.update(&mut cx, |_, cx| cx.notify()).ok();
1011 }
1012 })
1013 }
1014
1015 fn attempt_resolve_selected_completion_documentation(
1016 &mut self,
1017 project: Option<&Model<Project>>,
1018 cx: &mut ViewContext<Editor>,
1019 ) {
1020 let settings = EditorSettings::get_global(cx);
1021 if !settings.show_completion_documentation {
1022 return;
1023 }
1024
1025 let completion_index = self.matches[self.selected_item].candidate_id;
1026 let Some(project) = project else {
1027 return;
1028 };
1029
1030 let resolve_task = project.update(cx, |project, cx| {
1031 project.resolve_completions(
1032 self.buffer.clone(),
1033 vec![completion_index],
1034 self.completions.clone(),
1035 cx,
1036 )
1037 });
1038
1039 let delay_ms =
1040 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1041 let delay = Duration::from_millis(delay_ms);
1042
1043 self.selected_completion_documentation_resolve_debounce
1044 .lock()
1045 .fire_new(delay, cx, |_, cx| {
1046 cx.spawn(move |this, mut cx| async move {
1047 if let Some(true) = resolve_task.await.log_err() {
1048 this.update(&mut cx, |_, cx| cx.notify()).ok();
1049 }
1050 })
1051 });
1052 }
1053
1054 fn visible(&self) -> bool {
1055 !self.matches.is_empty()
1056 }
1057
1058 fn render(
1059 &self,
1060 style: &EditorStyle,
1061 max_height: Pixels,
1062 workspace: Option<WeakView<Workspace>>,
1063 cx: &mut ViewContext<Editor>,
1064 ) -> AnyElement {
1065 let settings = EditorSettings::get_global(cx);
1066 let show_completion_documentation = settings.show_completion_documentation;
1067
1068 let widest_completion_ix = self
1069 .matches
1070 .iter()
1071 .enumerate()
1072 .max_by_key(|(_, mat)| {
1073 let completions = self.completions.read();
1074 let completion = &completions[mat.candidate_id];
1075 let documentation = &completion.documentation;
1076
1077 let mut len = completion.label.text.chars().count();
1078 if let Some(Documentation::SingleLine(text)) = documentation {
1079 if show_completion_documentation {
1080 len += text.chars().count();
1081 }
1082 }
1083
1084 len
1085 })
1086 .map(|(ix, _)| ix);
1087
1088 let completions = self.completions.clone();
1089 let matches = self.matches.clone();
1090 let selected_item = self.selected_item;
1091 let style = style.clone();
1092
1093 let multiline_docs = if show_completion_documentation {
1094 let mat = &self.matches[selected_item];
1095 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1096 Some(Documentation::MultiLinePlainText(text)) => {
1097 Some(div().child(SharedString::from(text.clone())))
1098 }
1099 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1100 Some(div().child(render_parsed_markdown(
1101 "completions_markdown",
1102 parsed,
1103 &style,
1104 workspace,
1105 cx,
1106 )))
1107 }
1108 _ => None,
1109 };
1110 multiline_docs.map(|div| {
1111 div.id("multiline_docs")
1112 .max_h(max_height)
1113 .flex_1()
1114 .px_1p5()
1115 .py_1()
1116 .min_w(px(260.))
1117 .max_w(px(640.))
1118 .w(px(500.))
1119 .overflow_y_scroll()
1120 .occlude()
1121 })
1122 } else {
1123 None
1124 };
1125
1126 let list = uniform_list(
1127 cx.view().clone(),
1128 "completions",
1129 matches.len(),
1130 move |_editor, range, cx| {
1131 let start_ix = range.start;
1132 let completions_guard = completions.read();
1133
1134 matches[range]
1135 .iter()
1136 .enumerate()
1137 .map(|(ix, mat)| {
1138 let item_ix = start_ix + ix;
1139 let candidate_id = mat.candidate_id;
1140 let completion = &completions_guard[candidate_id];
1141
1142 let documentation = if show_completion_documentation {
1143 &completion.documentation
1144 } else {
1145 &None
1146 };
1147
1148 let highlights = gpui::combine_highlights(
1149 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1150 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1151 |(range, mut highlight)| {
1152 // Ignore font weight for syntax highlighting, as we'll use it
1153 // for fuzzy matches.
1154 highlight.font_weight = None;
1155
1156 if completion.lsp_completion.deprecated.unwrap_or(false) {
1157 highlight.strikethrough = Some(StrikethroughStyle {
1158 thickness: 1.0.into(),
1159 ..Default::default()
1160 });
1161 highlight.color = Some(cx.theme().colors().text_muted);
1162 }
1163
1164 (range, highlight)
1165 },
1166 ),
1167 );
1168 let completion_label = StyledText::new(completion.label.text.clone())
1169 .with_highlights(&style.text, highlights);
1170 let documentation_label =
1171 if let Some(Documentation::SingleLine(text)) = documentation {
1172 if text.trim().is_empty() {
1173 None
1174 } else {
1175 Some(
1176 Label::new(text.clone())
1177 .ml_4()
1178 .size(LabelSize::Small)
1179 .color(Color::Muted),
1180 )
1181 }
1182 } else {
1183 None
1184 };
1185
1186 div().min_w(px(220.)).max_w(px(540.)).child(
1187 ListItem::new(mat.candidate_id)
1188 .inset(true)
1189 .selected(item_ix == selected_item)
1190 .on_click(cx.listener(move |editor, _event, cx| {
1191 cx.stop_propagation();
1192 if let Some(task) = editor.confirm_completion(
1193 &ConfirmCompletion {
1194 item_ix: Some(item_ix),
1195 },
1196 cx,
1197 ) {
1198 task.detach_and_log_err(cx)
1199 }
1200 }))
1201 .child(h_flex().overflow_hidden().child(completion_label))
1202 .end_slot::<Label>(documentation_label),
1203 )
1204 })
1205 .collect()
1206 },
1207 )
1208 .occlude()
1209 .max_h(max_height)
1210 .track_scroll(self.scroll_handle.clone())
1211 .with_width_from_item(widest_completion_ix)
1212 .with_sizing_behavior(ListSizingBehavior::Infer);
1213
1214 Popover::new()
1215 .child(list)
1216 .when_some(multiline_docs, |popover, multiline_docs| {
1217 popover.aside(multiline_docs)
1218 })
1219 .into_any_element()
1220 }
1221
1222 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1223 let mut matches = if let Some(query) = query {
1224 fuzzy::match_strings(
1225 &self.match_candidates,
1226 query,
1227 query.chars().any(|c| c.is_uppercase()),
1228 100,
1229 &Default::default(),
1230 executor,
1231 )
1232 .await
1233 } else {
1234 self.match_candidates
1235 .iter()
1236 .enumerate()
1237 .map(|(candidate_id, candidate)| StringMatch {
1238 candidate_id,
1239 score: Default::default(),
1240 positions: Default::default(),
1241 string: candidate.string.clone(),
1242 })
1243 .collect()
1244 };
1245
1246 // Remove all candidates where the query's start does not match the start of any word in the candidate
1247 if let Some(query) = query {
1248 if let Some(query_start) = query.chars().next() {
1249 matches.retain(|string_match| {
1250 split_words(&string_match.string).any(|word| {
1251 // Check that the first codepoint of the word as lowercase matches the first
1252 // codepoint of the query as lowercase
1253 word.chars()
1254 .flat_map(|codepoint| codepoint.to_lowercase())
1255 .zip(query_start.to_lowercase())
1256 .all(|(word_cp, query_cp)| word_cp == query_cp)
1257 })
1258 });
1259 }
1260 }
1261
1262 let completions = self.completions.read();
1263 if self.sort_completions {
1264 matches.sort_unstable_by_key(|mat| {
1265 // We do want to strike a balance here between what the language server tells us
1266 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1267 // `Creat` and there is a local variable called `CreateComponent`).
1268 // So what we do is: we bucket all matches into two buckets
1269 // - Strong matches
1270 // - Weak matches
1271 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1272 // and the Weak matches are the rest.
1273 //
1274 // For the strong matches, we sort by the language-servers score first and for the weak
1275 // matches, we prefer our fuzzy finder first.
1276 //
1277 // The thinking behind that: it's useless to take the sort_text the language-server gives
1278 // us into account when it's obviously a bad match.
1279
1280 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1281 enum MatchScore<'a> {
1282 Strong {
1283 sort_text: Option<&'a str>,
1284 score: Reverse<OrderedFloat<f64>>,
1285 sort_key: (usize, &'a str),
1286 },
1287 Weak {
1288 score: Reverse<OrderedFloat<f64>>,
1289 sort_text: Option<&'a str>,
1290 sort_key: (usize, &'a str),
1291 },
1292 }
1293
1294 let completion = &completions[mat.candidate_id];
1295 let sort_key = completion.sort_key();
1296 let sort_text = completion.lsp_completion.sort_text.as_deref();
1297 let score = Reverse(OrderedFloat(mat.score));
1298
1299 if mat.score >= 0.2 {
1300 MatchScore::Strong {
1301 sort_text,
1302 score,
1303 sort_key,
1304 }
1305 } else {
1306 MatchScore::Weak {
1307 score,
1308 sort_text,
1309 sort_key,
1310 }
1311 }
1312 });
1313 }
1314
1315 for mat in &mut matches {
1316 let completion = &completions[mat.candidate_id];
1317 mat.string.clone_from(&completion.label.text);
1318 for position in &mut mat.positions {
1319 *position += completion.label.filter_range.start;
1320 }
1321 }
1322 drop(completions);
1323
1324 self.matches = matches.into();
1325 self.selected_item = 0;
1326 }
1327}
1328
1329#[derive(Clone)]
1330struct CodeActionContents {
1331 tasks: Option<Arc<ResolvedTasks>>,
1332 actions: Option<Arc<[CodeAction]>>,
1333}
1334
1335impl CodeActionContents {
1336 fn len(&self) -> usize {
1337 match (&self.tasks, &self.actions) {
1338 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1339 (Some(tasks), None) => tasks.templates.len(),
1340 (None, Some(actions)) => actions.len(),
1341 (None, None) => 0,
1342 }
1343 }
1344
1345 fn is_empty(&self) -> bool {
1346 match (&self.tasks, &self.actions) {
1347 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1348 (Some(tasks), None) => tasks.templates.is_empty(),
1349 (None, Some(actions)) => actions.is_empty(),
1350 (None, None) => true,
1351 }
1352 }
1353
1354 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1355 self.tasks
1356 .iter()
1357 .flat_map(|tasks| {
1358 tasks
1359 .templates
1360 .iter()
1361 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1362 })
1363 .chain(self.actions.iter().flat_map(|actions| {
1364 actions
1365 .iter()
1366 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1367 }))
1368 }
1369 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1370 match (&self.tasks, &self.actions) {
1371 (Some(tasks), Some(actions)) => {
1372 if index < tasks.templates.len() {
1373 tasks
1374 .templates
1375 .get(index)
1376 .cloned()
1377 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1378 } else {
1379 actions
1380 .get(index - tasks.templates.len())
1381 .cloned()
1382 .map(CodeActionsItem::CodeAction)
1383 }
1384 }
1385 (Some(tasks), None) => tasks
1386 .templates
1387 .get(index)
1388 .cloned()
1389 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1390 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1391 (None, None) => None,
1392 }
1393 }
1394}
1395
1396#[allow(clippy::large_enum_variant)]
1397#[derive(Clone)]
1398enum CodeActionsItem {
1399 Task(TaskSourceKind, ResolvedTask),
1400 CodeAction(CodeAction),
1401}
1402
1403impl CodeActionsItem {
1404 fn as_task(&self) -> Option<&ResolvedTask> {
1405 let Self::Task(_, task) = self else {
1406 return None;
1407 };
1408 Some(task)
1409 }
1410 fn as_code_action(&self) -> Option<&CodeAction> {
1411 let Self::CodeAction(action) = self else {
1412 return None;
1413 };
1414 Some(action)
1415 }
1416 fn label(&self) -> String {
1417 match self {
1418 Self::CodeAction(action) => action.lsp_action.title.clone(),
1419 Self::Task(_, task) => task.resolved_label.clone(),
1420 }
1421 }
1422}
1423
1424struct CodeActionsMenu {
1425 actions: CodeActionContents,
1426 buffer: Model<Buffer>,
1427 selected_item: usize,
1428 scroll_handle: UniformListScrollHandle,
1429 deployed_from_indicator: Option<DisplayRow>,
1430}
1431
1432impl CodeActionsMenu {
1433 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1434 self.selected_item = 0;
1435 self.scroll_handle.scroll_to_item(self.selected_item);
1436 cx.notify()
1437 }
1438
1439 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1440 if self.selected_item > 0 {
1441 self.selected_item -= 1;
1442 } else {
1443 self.selected_item = self.actions.len() - 1;
1444 }
1445 self.scroll_handle.scroll_to_item(self.selected_item);
1446 cx.notify();
1447 }
1448
1449 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1450 if self.selected_item + 1 < self.actions.len() {
1451 self.selected_item += 1;
1452 } else {
1453 self.selected_item = 0;
1454 }
1455 self.scroll_handle.scroll_to_item(self.selected_item);
1456 cx.notify();
1457 }
1458
1459 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1460 self.selected_item = self.actions.len() - 1;
1461 self.scroll_handle.scroll_to_item(self.selected_item);
1462 cx.notify()
1463 }
1464
1465 fn visible(&self) -> bool {
1466 !self.actions.is_empty()
1467 }
1468
1469 fn render(
1470 &self,
1471 cursor_position: DisplayPoint,
1472 _style: &EditorStyle,
1473 max_height: Pixels,
1474 cx: &mut ViewContext<Editor>,
1475 ) -> (ContextMenuOrigin, AnyElement) {
1476 let actions = self.actions.clone();
1477 let selected_item = self.selected_item;
1478 let element = uniform_list(
1479 cx.view().clone(),
1480 "code_actions_menu",
1481 self.actions.len(),
1482 move |_this, range, cx| {
1483 actions
1484 .iter()
1485 .skip(range.start)
1486 .take(range.end - range.start)
1487 .enumerate()
1488 .map(|(ix, action)| {
1489 let item_ix = range.start + ix;
1490 let selected = selected_item == item_ix;
1491 let colors = cx.theme().colors();
1492 div()
1493 .px_1()
1494 .rounded_md()
1495 .text_color(colors.text)
1496 .when(selected, |style| {
1497 style
1498 .bg(colors.element_active)
1499 .text_color(colors.text_accent)
1500 })
1501 .hover(|style| {
1502 style
1503 .bg(colors.element_hover)
1504 .text_color(colors.text_accent)
1505 })
1506 .whitespace_nowrap()
1507 .when_some(action.as_code_action(), |this, action| {
1508 this.on_mouse_down(
1509 MouseButton::Left,
1510 cx.listener(move |editor, _, cx| {
1511 cx.stop_propagation();
1512 if let Some(task) = editor.confirm_code_action(
1513 &ConfirmCodeAction {
1514 item_ix: Some(item_ix),
1515 },
1516 cx,
1517 ) {
1518 task.detach_and_log_err(cx)
1519 }
1520 }),
1521 )
1522 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1523 .child(SharedString::from(action.lsp_action.title.clone()))
1524 })
1525 .when_some(action.as_task(), |this, task| {
1526 this.on_mouse_down(
1527 MouseButton::Left,
1528 cx.listener(move |editor, _, cx| {
1529 cx.stop_propagation();
1530 if let Some(task) = editor.confirm_code_action(
1531 &ConfirmCodeAction {
1532 item_ix: Some(item_ix),
1533 },
1534 cx,
1535 ) {
1536 task.detach_and_log_err(cx)
1537 }
1538 }),
1539 )
1540 .child(SharedString::from(task.resolved_label.clone()))
1541 })
1542 })
1543 .collect()
1544 },
1545 )
1546 .elevation_1(cx)
1547 .p_1()
1548 .max_h(max_height)
1549 .occlude()
1550 .track_scroll(self.scroll_handle.clone())
1551 .with_width_from_item(
1552 self.actions
1553 .iter()
1554 .enumerate()
1555 .max_by_key(|(_, action)| match action {
1556 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1557 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1558 })
1559 .map(|(ix, _)| ix),
1560 )
1561 .with_sizing_behavior(ListSizingBehavior::Infer)
1562 .into_any_element();
1563
1564 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1565 ContextMenuOrigin::GutterIndicator(row)
1566 } else {
1567 ContextMenuOrigin::EditorPoint(cursor_position)
1568 };
1569
1570 (cursor_position, element)
1571 }
1572}
1573
1574#[derive(Debug)]
1575struct ActiveDiagnosticGroup {
1576 primary_range: Range<Anchor>,
1577 primary_message: String,
1578 group_id: usize,
1579 blocks: HashMap<CustomBlockId, Diagnostic>,
1580 is_valid: bool,
1581}
1582
1583#[derive(Serialize, Deserialize, Clone, Debug)]
1584pub struct ClipboardSelection {
1585 pub len: usize,
1586 pub is_entire_line: bool,
1587 pub first_line_indent: u32,
1588}
1589
1590#[derive(Debug)]
1591pub(crate) struct NavigationData {
1592 cursor_anchor: Anchor,
1593 cursor_position: Point,
1594 scroll_anchor: ScrollAnchor,
1595 scroll_top_row: u32,
1596}
1597
1598#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1599enum GotoDefinitionKind {
1600 Symbol,
1601 Declaration,
1602 Type,
1603 Implementation,
1604}
1605
1606#[derive(Debug, Clone)]
1607enum InlayHintRefreshReason {
1608 Toggle(bool),
1609 SettingsChange(InlayHintSettings),
1610 NewLinesShown,
1611 BufferEdited(HashSet<Arc<Language>>),
1612 RefreshRequested,
1613 ExcerptsRemoved(Vec<ExcerptId>),
1614}
1615
1616impl InlayHintRefreshReason {
1617 fn description(&self) -> &'static str {
1618 match self {
1619 Self::Toggle(_) => "toggle",
1620 Self::SettingsChange(_) => "settings change",
1621 Self::NewLinesShown => "new lines shown",
1622 Self::BufferEdited(_) => "buffer edited",
1623 Self::RefreshRequested => "refresh requested",
1624 Self::ExcerptsRemoved(_) => "excerpts removed",
1625 }
1626 }
1627}
1628
1629pub(crate) struct FocusedBlock {
1630 id: BlockId,
1631 focus_handle: WeakFocusHandle,
1632}
1633
1634impl Editor {
1635 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1636 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1637 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1638 Self::new(
1639 EditorMode::SingleLine { auto_width: false },
1640 buffer,
1641 None,
1642 false,
1643 cx,
1644 )
1645 }
1646
1647 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1648 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1649 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1650 Self::new(EditorMode::Full, buffer, None, false, cx)
1651 }
1652
1653 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1654 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1655 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1656 Self::new(
1657 EditorMode::SingleLine { auto_width: true },
1658 buffer,
1659 None,
1660 false,
1661 cx,
1662 )
1663 }
1664
1665 pub fn auto_height(max_lines: usize, 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::AutoHeight { max_lines },
1670 buffer,
1671 None,
1672 false,
1673 cx,
1674 )
1675 }
1676
1677 pub fn for_buffer(
1678 buffer: Model<Buffer>,
1679 project: Option<Model<Project>>,
1680 cx: &mut ViewContext<Self>,
1681 ) -> Self {
1682 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1683 Self::new(EditorMode::Full, buffer, project, false, cx)
1684 }
1685
1686 pub fn for_multibuffer(
1687 buffer: Model<MultiBuffer>,
1688 project: Option<Model<Project>>,
1689 show_excerpt_controls: bool,
1690 cx: &mut ViewContext<Self>,
1691 ) -> Self {
1692 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1693 }
1694
1695 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1696 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1697 let mut clone = Self::new(
1698 self.mode,
1699 self.buffer.clone(),
1700 self.project.clone(),
1701 show_excerpt_controls,
1702 cx,
1703 );
1704 self.display_map.update(cx, |display_map, cx| {
1705 let snapshot = display_map.snapshot(cx);
1706 clone.display_map.update(cx, |display_map, cx| {
1707 display_map.set_state(&snapshot, cx);
1708 });
1709 });
1710 clone.selections.clone_state(&self.selections);
1711 clone.scroll_manager.clone_state(&self.scroll_manager);
1712 clone.searchable = self.searchable;
1713 clone
1714 }
1715
1716 pub fn new(
1717 mode: EditorMode,
1718 buffer: Model<MultiBuffer>,
1719 project: Option<Model<Project>>,
1720 show_excerpt_controls: bool,
1721 cx: &mut ViewContext<Self>,
1722 ) -> Self {
1723 let style = cx.text_style();
1724 let font_size = style.font_size.to_pixels(cx.rem_size());
1725 let editor = cx.view().downgrade();
1726 let fold_placeholder = FoldPlaceholder {
1727 constrain_width: true,
1728 render: Arc::new(move |fold_id, fold_range, cx| {
1729 let editor = editor.clone();
1730 div()
1731 .id(fold_id)
1732 .bg(cx.theme().colors().ghost_element_background)
1733 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1734 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1735 .rounded_sm()
1736 .size_full()
1737 .cursor_pointer()
1738 .child("⋯")
1739 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1740 .on_click(move |_, cx| {
1741 editor
1742 .update(cx, |editor, cx| {
1743 editor.unfold_ranges(
1744 [fold_range.start..fold_range.end],
1745 true,
1746 false,
1747 cx,
1748 );
1749 cx.stop_propagation();
1750 })
1751 .ok();
1752 })
1753 .into_any()
1754 }),
1755 merge_adjacent: true,
1756 };
1757 let file_header_size = if show_excerpt_controls { 3 } else { 2 };
1758 let display_map = cx.new_model(|cx| {
1759 DisplayMap::new(
1760 buffer.clone(),
1761 style.font(),
1762 font_size,
1763 None,
1764 show_excerpt_controls,
1765 file_header_size,
1766 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1767 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1768 fold_placeholder,
1769 cx,
1770 )
1771 });
1772
1773 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1774
1775 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1776
1777 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1778 .then(|| language_settings::SoftWrap::PreferLine);
1779
1780 let mut project_subscriptions = Vec::new();
1781 if mode == EditorMode::Full {
1782 if let Some(project) = project.as_ref() {
1783 if buffer.read(cx).is_singleton() {
1784 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1785 cx.emit(EditorEvent::TitleChanged);
1786 }));
1787 }
1788 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1789 if let project::Event::RefreshInlayHints = event {
1790 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1791 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1792 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1793 let focus_handle = editor.focus_handle(cx);
1794 if focus_handle.is_focused(cx) {
1795 let snapshot = buffer.read(cx).snapshot();
1796 for (range, snippet) in snippet_edits {
1797 let editor_range =
1798 language::range_from_lsp(*range).to_offset(&snapshot);
1799 editor
1800 .insert_snippet(&[editor_range], snippet.clone(), cx)
1801 .ok();
1802 }
1803 }
1804 }
1805 }
1806 }));
1807 let task_inventory = project.read(cx).task_inventory().clone();
1808 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1809 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1810 }));
1811 }
1812 }
1813
1814 let inlay_hint_settings = inlay_hint_settings(
1815 selections.newest_anchor().head(),
1816 &buffer.read(cx).snapshot(cx),
1817 cx,
1818 );
1819 let focus_handle = cx.focus_handle();
1820 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1821 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1822 .detach();
1823 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1824 .detach();
1825 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1826
1827 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1828 Some(false)
1829 } else {
1830 None
1831 };
1832
1833 let mut this = Self {
1834 focus_handle,
1835 show_cursor_when_unfocused: false,
1836 last_focused_descendant: None,
1837 buffer: buffer.clone(),
1838 display_map: display_map.clone(),
1839 selections,
1840 scroll_manager: ScrollManager::new(cx),
1841 columnar_selection_tail: None,
1842 add_selections_state: None,
1843 select_next_state: None,
1844 select_prev_state: None,
1845 selection_history: Default::default(),
1846 autoclose_regions: Default::default(),
1847 snippet_stack: Default::default(),
1848 select_larger_syntax_node_stack: Vec::new(),
1849 ime_transaction: Default::default(),
1850 active_diagnostics: None,
1851 soft_wrap_mode_override,
1852 completion_provider: project.clone().map(|project| Box::new(project) as _),
1853 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1854 project,
1855 blink_manager: blink_manager.clone(),
1856 show_local_selections: true,
1857 mode,
1858 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1859 show_gutter: mode == EditorMode::Full,
1860 show_line_numbers: None,
1861 use_relative_line_numbers: None,
1862 show_git_diff_gutter: None,
1863 show_code_actions: None,
1864 show_runnables: None,
1865 show_wrap_guides: None,
1866 show_indent_guides,
1867 placeholder_text: None,
1868 highlight_order: 0,
1869 highlighted_rows: HashMap::default(),
1870 background_highlights: Default::default(),
1871 gutter_highlights: TreeMap::default(),
1872 scrollbar_marker_state: ScrollbarMarkerState::default(),
1873 active_indent_guides_state: ActiveIndentGuidesState::default(),
1874 nav_history: None,
1875 context_menu: RwLock::new(None),
1876 mouse_context_menu: None,
1877 completion_tasks: Default::default(),
1878 signature_help_state: SignatureHelpState::default(),
1879 auto_signature_help: None,
1880 find_all_references_task_sources: Vec::new(),
1881 next_completion_id: 0,
1882 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1883 next_inlay_id: 0,
1884 available_code_actions: Default::default(),
1885 code_actions_task: Default::default(),
1886 document_highlights_task: Default::default(),
1887 linked_editing_range_task: Default::default(),
1888 pending_rename: Default::default(),
1889 searchable: true,
1890 cursor_shape: Default::default(),
1891 current_line_highlight: None,
1892 autoindent_mode: Some(AutoindentMode::EachLine),
1893 collapse_matches: false,
1894 workspace: None,
1895 input_enabled: true,
1896 use_modal_editing: mode == EditorMode::Full,
1897 read_only: false,
1898 use_autoclose: true,
1899 use_auto_surround: true,
1900 auto_replace_emoji_shortcode: false,
1901 leader_peer_id: None,
1902 remote_id: None,
1903 hover_state: Default::default(),
1904 hovered_link_state: Default::default(),
1905 inline_completion_provider: None,
1906 active_inline_completion: None,
1907 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1908 expanded_hunks: ExpandedHunks::default(),
1909 gutter_hovered: false,
1910 pixel_position_of_newest_cursor: None,
1911 last_bounds: None,
1912 expect_bounds_change: None,
1913 gutter_dimensions: GutterDimensions::default(),
1914 style: None,
1915 show_cursor_names: false,
1916 hovered_cursors: Default::default(),
1917 next_editor_action_id: EditorActionId::default(),
1918 editor_actions: Rc::default(),
1919 show_inline_completions_override: None,
1920 enable_inline_completions: true,
1921 custom_context_menu: None,
1922 show_git_blame_gutter: false,
1923 show_git_blame_inline: false,
1924 show_selection_menu: None,
1925 show_git_blame_inline_delay_task: None,
1926 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1927 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1928 .session
1929 .restore_unsaved_buffers,
1930 blame: None,
1931 blame_subscription: None,
1932 file_header_size,
1933 tasks: Default::default(),
1934 _subscriptions: vec![
1935 cx.observe(&buffer, Self::on_buffer_changed),
1936 cx.subscribe(&buffer, Self::on_buffer_event),
1937 cx.observe(&display_map, Self::on_display_map_changed),
1938 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1939 cx.observe_global::<SettingsStore>(Self::settings_changed),
1940 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1941 cx.observe_window_activation(|editor, cx| {
1942 let active = cx.is_window_active();
1943 editor.blink_manager.update(cx, |blink_manager, cx| {
1944 if active {
1945 blink_manager.enable(cx);
1946 } else {
1947 blink_manager.disable(cx);
1948 }
1949 });
1950 }),
1951 ],
1952 tasks_update_task: None,
1953 linked_edit_ranges: Default::default(),
1954 previous_search_ranges: None,
1955 breadcrumb_header: None,
1956 focused_block: None,
1957 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
1958 addons: HashMap::default(),
1959 _scroll_cursor_center_top_bottom_task: Task::ready(()),
1960 };
1961 this.tasks_update_task = Some(this.refresh_runnables(cx));
1962 this._subscriptions.extend(project_subscriptions);
1963
1964 this.end_selection(cx);
1965 this.scroll_manager.show_scrollbar(cx);
1966
1967 if mode == EditorMode::Full {
1968 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1969 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1970
1971 if this.git_blame_inline_enabled {
1972 this.git_blame_inline_enabled = true;
1973 this.start_git_blame_inline(false, cx);
1974 }
1975 }
1976
1977 this.report_editor_event("open", None, cx);
1978 this
1979 }
1980
1981 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
1982 self.mouse_context_menu
1983 .as_ref()
1984 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1985 }
1986
1987 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
1988 let mut key_context = KeyContext::new_with_defaults();
1989 key_context.add("Editor");
1990 let mode = match self.mode {
1991 EditorMode::SingleLine { .. } => "single_line",
1992 EditorMode::AutoHeight { .. } => "auto_height",
1993 EditorMode::Full => "full",
1994 };
1995
1996 if EditorSettings::jupyter_enabled(cx) {
1997 key_context.add("jupyter");
1998 }
1999
2000 key_context.set("mode", mode);
2001 if self.pending_rename.is_some() {
2002 key_context.add("renaming");
2003 }
2004 if self.context_menu_visible() {
2005 match self.context_menu.read().as_ref() {
2006 Some(ContextMenu::Completions(_)) => {
2007 key_context.add("menu");
2008 key_context.add("showing_completions")
2009 }
2010 Some(ContextMenu::CodeActions(_)) => {
2011 key_context.add("menu");
2012 key_context.add("showing_code_actions")
2013 }
2014 None => {}
2015 }
2016 }
2017
2018 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2019 if !self.focus_handle(cx).contains_focused(cx)
2020 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2021 {
2022 for addon in self.addons.values() {
2023 addon.extend_key_context(&mut key_context, cx)
2024 }
2025 }
2026
2027 if let Some(extension) = self
2028 .buffer
2029 .read(cx)
2030 .as_singleton()
2031 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2032 {
2033 key_context.set("extension", extension.to_string());
2034 }
2035
2036 if self.has_active_inline_completion(cx) {
2037 key_context.add("copilot_suggestion");
2038 key_context.add("inline_completion");
2039 }
2040
2041 key_context
2042 }
2043
2044 pub fn new_file(
2045 workspace: &mut Workspace,
2046 _: &workspace::NewFile,
2047 cx: &mut ViewContext<Workspace>,
2048 ) {
2049 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2050 "Failed to create buffer",
2051 cx,
2052 |e, _| match e.error_code() {
2053 ErrorCode::RemoteUpgradeRequired => Some(format!(
2054 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2055 e.error_tag("required").unwrap_or("the latest version")
2056 )),
2057 _ => None,
2058 },
2059 );
2060 }
2061
2062 pub fn new_in_workspace(
2063 workspace: &mut Workspace,
2064 cx: &mut ViewContext<Workspace>,
2065 ) -> Task<Result<View<Editor>>> {
2066 let project = workspace.project().clone();
2067 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2068
2069 cx.spawn(|workspace, mut cx| async move {
2070 let buffer = create.await?;
2071 workspace.update(&mut cx, |workspace, cx| {
2072 let editor =
2073 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2074 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2075 editor
2076 })
2077 })
2078 }
2079
2080 fn new_file_vertical(
2081 workspace: &mut Workspace,
2082 _: &workspace::NewFileSplitVertical,
2083 cx: &mut ViewContext<Workspace>,
2084 ) {
2085 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2086 }
2087
2088 fn new_file_horizontal(
2089 workspace: &mut Workspace,
2090 _: &workspace::NewFileSplitHorizontal,
2091 cx: &mut ViewContext<Workspace>,
2092 ) {
2093 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2094 }
2095
2096 fn new_file_in_direction(
2097 workspace: &mut Workspace,
2098 direction: SplitDirection,
2099 cx: &mut ViewContext<Workspace>,
2100 ) {
2101 let project = workspace.project().clone();
2102 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2103
2104 cx.spawn(|workspace, mut cx| async move {
2105 let buffer = create.await?;
2106 workspace.update(&mut cx, move |workspace, cx| {
2107 workspace.split_item(
2108 direction,
2109 Box::new(
2110 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2111 ),
2112 cx,
2113 )
2114 })?;
2115 anyhow::Ok(())
2116 })
2117 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2118 ErrorCode::RemoteUpgradeRequired => Some(format!(
2119 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2120 e.error_tag("required").unwrap_or("the latest version")
2121 )),
2122 _ => None,
2123 });
2124 }
2125
2126 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
2127 self.buffer.read(cx).replica_id()
2128 }
2129
2130 pub fn leader_peer_id(&self) -> Option<PeerId> {
2131 self.leader_peer_id
2132 }
2133
2134 pub fn buffer(&self) -> &Model<MultiBuffer> {
2135 &self.buffer
2136 }
2137
2138 pub fn workspace(&self) -> Option<View<Workspace>> {
2139 self.workspace.as_ref()?.0.upgrade()
2140 }
2141
2142 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2143 self.buffer().read(cx).title(cx)
2144 }
2145
2146 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2147 EditorSnapshot {
2148 mode: self.mode,
2149 show_gutter: self.show_gutter,
2150 show_line_numbers: self.show_line_numbers,
2151 show_git_diff_gutter: self.show_git_diff_gutter,
2152 show_code_actions: self.show_code_actions,
2153 show_runnables: self.show_runnables,
2154 render_git_blame_gutter: self.render_git_blame_gutter(cx),
2155 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2156 scroll_anchor: self.scroll_manager.anchor(),
2157 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2158 placeholder_text: self.placeholder_text.clone(),
2159 is_focused: self.focus_handle.is_focused(cx),
2160 current_line_highlight: self
2161 .current_line_highlight
2162 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2163 gutter_hovered: self.gutter_hovered,
2164 }
2165 }
2166
2167 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2168 self.buffer.read(cx).language_at(point, cx)
2169 }
2170
2171 pub fn file_at<T: ToOffset>(
2172 &self,
2173 point: T,
2174 cx: &AppContext,
2175 ) -> Option<Arc<dyn language::File>> {
2176 self.buffer.read(cx).read(cx).file_at(point).cloned()
2177 }
2178
2179 pub fn active_excerpt(
2180 &self,
2181 cx: &AppContext,
2182 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2183 self.buffer
2184 .read(cx)
2185 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2186 }
2187
2188 pub fn mode(&self) -> EditorMode {
2189 self.mode
2190 }
2191
2192 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2193 self.collaboration_hub.as_deref()
2194 }
2195
2196 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2197 self.collaboration_hub = Some(hub);
2198 }
2199
2200 pub fn set_custom_context_menu(
2201 &mut self,
2202 f: impl 'static
2203 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2204 ) {
2205 self.custom_context_menu = Some(Box::new(f))
2206 }
2207
2208 pub fn set_completion_provider(&mut self, provider: Box<dyn CompletionProvider>) {
2209 self.completion_provider = Some(provider);
2210 }
2211
2212 pub fn set_inline_completion_provider<T>(
2213 &mut self,
2214 provider: Option<Model<T>>,
2215 cx: &mut ViewContext<Self>,
2216 ) where
2217 T: InlineCompletionProvider,
2218 {
2219 self.inline_completion_provider =
2220 provider.map(|provider| RegisteredInlineCompletionProvider {
2221 _subscription: cx.observe(&provider, |this, _, cx| {
2222 if this.focus_handle.is_focused(cx) {
2223 this.update_visible_inline_completion(cx);
2224 }
2225 }),
2226 provider: Arc::new(provider),
2227 });
2228 self.refresh_inline_completion(false, false, cx);
2229 }
2230
2231 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2232 self.placeholder_text.as_deref()
2233 }
2234
2235 pub fn set_placeholder_text(
2236 &mut self,
2237 placeholder_text: impl Into<Arc<str>>,
2238 cx: &mut ViewContext<Self>,
2239 ) {
2240 let placeholder_text = Some(placeholder_text.into());
2241 if self.placeholder_text != placeholder_text {
2242 self.placeholder_text = placeholder_text;
2243 cx.notify();
2244 }
2245 }
2246
2247 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2248 self.cursor_shape = cursor_shape;
2249
2250 // Disrupt blink for immediate user feedback that the cursor shape has changed
2251 self.blink_manager.update(cx, BlinkManager::show_cursor);
2252
2253 cx.notify();
2254 }
2255
2256 pub fn set_current_line_highlight(
2257 &mut self,
2258 current_line_highlight: Option<CurrentLineHighlight>,
2259 ) {
2260 self.current_line_highlight = current_line_highlight;
2261 }
2262
2263 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2264 self.collapse_matches = collapse_matches;
2265 }
2266
2267 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2268 if self.collapse_matches {
2269 return range.start..range.start;
2270 }
2271 range.clone()
2272 }
2273
2274 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2275 if self.display_map.read(cx).clip_at_line_ends != clip {
2276 self.display_map
2277 .update(cx, |map, _| map.clip_at_line_ends = clip);
2278 }
2279 }
2280
2281 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2282 self.input_enabled = input_enabled;
2283 }
2284
2285 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2286 self.enable_inline_completions = enabled;
2287 }
2288
2289 pub fn set_autoindent(&mut self, autoindent: bool) {
2290 if autoindent {
2291 self.autoindent_mode = Some(AutoindentMode::EachLine);
2292 } else {
2293 self.autoindent_mode = None;
2294 }
2295 }
2296
2297 pub fn read_only(&self, cx: &AppContext) -> bool {
2298 self.read_only || self.buffer.read(cx).read_only()
2299 }
2300
2301 pub fn set_read_only(&mut self, read_only: bool) {
2302 self.read_only = read_only;
2303 }
2304
2305 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2306 self.use_autoclose = autoclose;
2307 }
2308
2309 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2310 self.use_auto_surround = auto_surround;
2311 }
2312
2313 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2314 self.auto_replace_emoji_shortcode = auto_replace;
2315 }
2316
2317 pub fn toggle_inline_completions(
2318 &mut self,
2319 _: &ToggleInlineCompletions,
2320 cx: &mut ViewContext<Self>,
2321 ) {
2322 if self.show_inline_completions_override.is_some() {
2323 self.set_show_inline_completions(None, cx);
2324 } else {
2325 let cursor = self.selections.newest_anchor().head();
2326 if let Some((buffer, cursor_buffer_position)) =
2327 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2328 {
2329 let show_inline_completions =
2330 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2331 self.set_show_inline_completions(Some(show_inline_completions), cx);
2332 }
2333 }
2334 }
2335
2336 pub fn set_show_inline_completions(
2337 &mut self,
2338 show_inline_completions: Option<bool>,
2339 cx: &mut ViewContext<Self>,
2340 ) {
2341 self.show_inline_completions_override = show_inline_completions;
2342 self.refresh_inline_completion(false, true, cx);
2343 }
2344
2345 fn should_show_inline_completions(
2346 &self,
2347 buffer: &Model<Buffer>,
2348 buffer_position: language::Anchor,
2349 cx: &AppContext,
2350 ) -> bool {
2351 if let Some(provider) = self.inline_completion_provider() {
2352 if let Some(show_inline_completions) = self.show_inline_completions_override {
2353 show_inline_completions
2354 } else {
2355 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2356 }
2357 } else {
2358 false
2359 }
2360 }
2361
2362 pub fn set_use_modal_editing(&mut self, to: bool) {
2363 self.use_modal_editing = to;
2364 }
2365
2366 pub fn use_modal_editing(&self) -> bool {
2367 self.use_modal_editing
2368 }
2369
2370 fn selections_did_change(
2371 &mut self,
2372 local: bool,
2373 old_cursor_position: &Anchor,
2374 show_completions: bool,
2375 cx: &mut ViewContext<Self>,
2376 ) {
2377 cx.invalidate_character_coordinates();
2378
2379 // Copy selections to primary selection buffer
2380 #[cfg(target_os = "linux")]
2381 if local {
2382 let selections = self.selections.all::<usize>(cx);
2383 let buffer_handle = self.buffer.read(cx).read(cx);
2384
2385 let mut text = String::new();
2386 for (index, selection) in selections.iter().enumerate() {
2387 let text_for_selection = buffer_handle
2388 .text_for_range(selection.start..selection.end)
2389 .collect::<String>();
2390
2391 text.push_str(&text_for_selection);
2392 if index != selections.len() - 1 {
2393 text.push('\n');
2394 }
2395 }
2396
2397 if !text.is_empty() {
2398 cx.write_to_primary(ClipboardItem::new_string(text));
2399 }
2400 }
2401
2402 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2403 self.buffer.update(cx, |buffer, cx| {
2404 buffer.set_active_selections(
2405 &self.selections.disjoint_anchors(),
2406 self.selections.line_mode,
2407 self.cursor_shape,
2408 cx,
2409 )
2410 });
2411 }
2412 let display_map = self
2413 .display_map
2414 .update(cx, |display_map, cx| display_map.snapshot(cx));
2415 let buffer = &display_map.buffer_snapshot;
2416 self.add_selections_state = None;
2417 self.select_next_state = None;
2418 self.select_prev_state = None;
2419 self.select_larger_syntax_node_stack.clear();
2420 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2421 self.snippet_stack
2422 .invalidate(&self.selections.disjoint_anchors(), buffer);
2423 self.take_rename(false, cx);
2424
2425 let new_cursor_position = self.selections.newest_anchor().head();
2426
2427 self.push_to_nav_history(
2428 *old_cursor_position,
2429 Some(new_cursor_position.to_point(buffer)),
2430 cx,
2431 );
2432
2433 if local {
2434 let new_cursor_position = self.selections.newest_anchor().head();
2435 let mut context_menu = self.context_menu.write();
2436 let completion_menu = match context_menu.as_ref() {
2437 Some(ContextMenu::Completions(menu)) => Some(menu),
2438
2439 _ => {
2440 *context_menu = None;
2441 None
2442 }
2443 };
2444
2445 if let Some(completion_menu) = completion_menu {
2446 let cursor_position = new_cursor_position.to_offset(buffer);
2447 let (word_range, kind) =
2448 buffer.surrounding_word(completion_menu.initial_position, true);
2449 if kind == Some(CharKind::Word)
2450 && word_range.to_inclusive().contains(&cursor_position)
2451 {
2452 let mut completion_menu = completion_menu.clone();
2453 drop(context_menu);
2454
2455 let query = Self::completion_query(buffer, cursor_position);
2456 cx.spawn(move |this, mut cx| async move {
2457 completion_menu
2458 .filter(query.as_deref(), cx.background_executor().clone())
2459 .await;
2460
2461 this.update(&mut cx, |this, cx| {
2462 let mut context_menu = this.context_menu.write();
2463 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2464 return;
2465 };
2466
2467 if menu.id > completion_menu.id {
2468 return;
2469 }
2470
2471 *context_menu = Some(ContextMenu::Completions(completion_menu));
2472 drop(context_menu);
2473 cx.notify();
2474 })
2475 })
2476 .detach();
2477
2478 if show_completions {
2479 self.show_completions(&ShowCompletions { trigger: None }, cx);
2480 }
2481 } else {
2482 drop(context_menu);
2483 self.hide_context_menu(cx);
2484 }
2485 } else {
2486 drop(context_menu);
2487 }
2488
2489 hide_hover(self, cx);
2490
2491 if old_cursor_position.to_display_point(&display_map).row()
2492 != new_cursor_position.to_display_point(&display_map).row()
2493 {
2494 self.available_code_actions.take();
2495 }
2496 self.refresh_code_actions(cx);
2497 self.refresh_document_highlights(cx);
2498 refresh_matching_bracket_highlights(self, cx);
2499 self.discard_inline_completion(false, cx);
2500 linked_editing_ranges::refresh_linked_ranges(self, cx);
2501 if self.git_blame_inline_enabled {
2502 self.start_inline_blame_timer(cx);
2503 }
2504 }
2505
2506 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2507 cx.emit(EditorEvent::SelectionsChanged { local });
2508
2509 if self.selections.disjoint_anchors().len() == 1 {
2510 cx.emit(SearchEvent::ActiveMatchChanged)
2511 }
2512 cx.notify();
2513 }
2514
2515 pub fn change_selections<R>(
2516 &mut self,
2517 autoscroll: Option<Autoscroll>,
2518 cx: &mut ViewContext<Self>,
2519 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2520 ) -> R {
2521 self.change_selections_inner(autoscroll, true, cx, change)
2522 }
2523
2524 pub fn change_selections_inner<R>(
2525 &mut self,
2526 autoscroll: Option<Autoscroll>,
2527 request_completions: bool,
2528 cx: &mut ViewContext<Self>,
2529 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2530 ) -> R {
2531 let old_cursor_position = self.selections.newest_anchor().head();
2532 self.push_to_selection_history();
2533
2534 let (changed, result) = self.selections.change_with(cx, change);
2535
2536 if changed {
2537 if let Some(autoscroll) = autoscroll {
2538 self.request_autoscroll(autoscroll, cx);
2539 }
2540 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2541
2542 if self.should_open_signature_help_automatically(
2543 &old_cursor_position,
2544 self.signature_help_state.backspace_pressed(),
2545 cx,
2546 ) {
2547 self.show_signature_help(&ShowSignatureHelp, cx);
2548 }
2549 self.signature_help_state.set_backspace_pressed(false);
2550 }
2551
2552 result
2553 }
2554
2555 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2556 where
2557 I: IntoIterator<Item = (Range<S>, T)>,
2558 S: ToOffset,
2559 T: Into<Arc<str>>,
2560 {
2561 if self.read_only(cx) {
2562 return;
2563 }
2564
2565 self.buffer
2566 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2567 }
2568
2569 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2570 where
2571 I: IntoIterator<Item = (Range<S>, T)>,
2572 S: ToOffset,
2573 T: Into<Arc<str>>,
2574 {
2575 if self.read_only(cx) {
2576 return;
2577 }
2578
2579 self.buffer.update(cx, |buffer, cx| {
2580 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2581 });
2582 }
2583
2584 pub fn edit_with_block_indent<I, S, T>(
2585 &mut self,
2586 edits: I,
2587 original_indent_columns: Vec<u32>,
2588 cx: &mut ViewContext<Self>,
2589 ) where
2590 I: IntoIterator<Item = (Range<S>, T)>,
2591 S: ToOffset,
2592 T: Into<Arc<str>>,
2593 {
2594 if self.read_only(cx) {
2595 return;
2596 }
2597
2598 self.buffer.update(cx, |buffer, cx| {
2599 buffer.edit(
2600 edits,
2601 Some(AutoindentMode::Block {
2602 original_indent_columns,
2603 }),
2604 cx,
2605 )
2606 });
2607 }
2608
2609 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2610 self.hide_context_menu(cx);
2611
2612 match phase {
2613 SelectPhase::Begin {
2614 position,
2615 add,
2616 click_count,
2617 } => self.begin_selection(position, add, click_count, cx),
2618 SelectPhase::BeginColumnar {
2619 position,
2620 goal_column,
2621 reset,
2622 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2623 SelectPhase::Extend {
2624 position,
2625 click_count,
2626 } => self.extend_selection(position, click_count, cx),
2627 SelectPhase::Update {
2628 position,
2629 goal_column,
2630 scroll_delta,
2631 } => self.update_selection(position, goal_column, scroll_delta, cx),
2632 SelectPhase::End => self.end_selection(cx),
2633 }
2634 }
2635
2636 fn extend_selection(
2637 &mut self,
2638 position: DisplayPoint,
2639 click_count: usize,
2640 cx: &mut ViewContext<Self>,
2641 ) {
2642 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2643 let tail = self.selections.newest::<usize>(cx).tail();
2644 self.begin_selection(position, false, click_count, cx);
2645
2646 let position = position.to_offset(&display_map, Bias::Left);
2647 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2648
2649 let mut pending_selection = self
2650 .selections
2651 .pending_anchor()
2652 .expect("extend_selection not called with pending selection");
2653 if position >= tail {
2654 pending_selection.start = tail_anchor;
2655 } else {
2656 pending_selection.end = tail_anchor;
2657 pending_selection.reversed = true;
2658 }
2659
2660 let mut pending_mode = self.selections.pending_mode().unwrap();
2661 match &mut pending_mode {
2662 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2663 _ => {}
2664 }
2665
2666 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2667 s.set_pending(pending_selection, pending_mode)
2668 });
2669 }
2670
2671 fn begin_selection(
2672 &mut self,
2673 position: DisplayPoint,
2674 add: bool,
2675 click_count: usize,
2676 cx: &mut ViewContext<Self>,
2677 ) {
2678 if !self.focus_handle.is_focused(cx) {
2679 self.last_focused_descendant = None;
2680 cx.focus(&self.focus_handle);
2681 }
2682
2683 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2684 let buffer = &display_map.buffer_snapshot;
2685 let newest_selection = self.selections.newest_anchor().clone();
2686 let position = display_map.clip_point(position, Bias::Left);
2687
2688 let start;
2689 let end;
2690 let mode;
2691 let auto_scroll;
2692 match click_count {
2693 1 => {
2694 start = buffer.anchor_before(position.to_point(&display_map));
2695 end = start;
2696 mode = SelectMode::Character;
2697 auto_scroll = true;
2698 }
2699 2 => {
2700 let range = movement::surrounding_word(&display_map, position);
2701 start = buffer.anchor_before(range.start.to_point(&display_map));
2702 end = buffer.anchor_before(range.end.to_point(&display_map));
2703 mode = SelectMode::Word(start..end);
2704 auto_scroll = true;
2705 }
2706 3 => {
2707 let position = display_map
2708 .clip_point(position, Bias::Left)
2709 .to_point(&display_map);
2710 let line_start = display_map.prev_line_boundary(position).0;
2711 let next_line_start = buffer.clip_point(
2712 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2713 Bias::Left,
2714 );
2715 start = buffer.anchor_before(line_start);
2716 end = buffer.anchor_before(next_line_start);
2717 mode = SelectMode::Line(start..end);
2718 auto_scroll = true;
2719 }
2720 _ => {
2721 start = buffer.anchor_before(0);
2722 end = buffer.anchor_before(buffer.len());
2723 mode = SelectMode::All;
2724 auto_scroll = false;
2725 }
2726 }
2727
2728 let point_to_delete: Option<usize> = {
2729 let selected_points: Vec<Selection<Point>> =
2730 self.selections.disjoint_in_range(start..end, cx);
2731
2732 if !add || click_count > 1 {
2733 None
2734 } else if !selected_points.is_empty() {
2735 Some(selected_points[0].id)
2736 } else {
2737 let clicked_point_already_selected =
2738 self.selections.disjoint.iter().find(|selection| {
2739 selection.start.to_point(buffer) == start.to_point(buffer)
2740 || selection.end.to_point(buffer) == end.to_point(buffer)
2741 });
2742
2743 clicked_point_already_selected.map(|selection| selection.id)
2744 }
2745 };
2746
2747 let selections_count = self.selections.count();
2748
2749 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2750 if let Some(point_to_delete) = point_to_delete {
2751 s.delete(point_to_delete);
2752
2753 if selections_count == 1 {
2754 s.set_pending_anchor_range(start..end, mode);
2755 }
2756 } else {
2757 if !add {
2758 s.clear_disjoint();
2759 } else if click_count > 1 {
2760 s.delete(newest_selection.id)
2761 }
2762
2763 s.set_pending_anchor_range(start..end, mode);
2764 }
2765 });
2766 }
2767
2768 fn begin_columnar_selection(
2769 &mut self,
2770 position: DisplayPoint,
2771 goal_column: u32,
2772 reset: bool,
2773 cx: &mut ViewContext<Self>,
2774 ) {
2775 if !self.focus_handle.is_focused(cx) {
2776 self.last_focused_descendant = None;
2777 cx.focus(&self.focus_handle);
2778 }
2779
2780 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2781
2782 if reset {
2783 let pointer_position = display_map
2784 .buffer_snapshot
2785 .anchor_before(position.to_point(&display_map));
2786
2787 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2788 s.clear_disjoint();
2789 s.set_pending_anchor_range(
2790 pointer_position..pointer_position,
2791 SelectMode::Character,
2792 );
2793 });
2794 }
2795
2796 let tail = self.selections.newest::<Point>(cx).tail();
2797 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2798
2799 if !reset {
2800 self.select_columns(
2801 tail.to_display_point(&display_map),
2802 position,
2803 goal_column,
2804 &display_map,
2805 cx,
2806 );
2807 }
2808 }
2809
2810 fn update_selection(
2811 &mut self,
2812 position: DisplayPoint,
2813 goal_column: u32,
2814 scroll_delta: gpui::Point<f32>,
2815 cx: &mut ViewContext<Self>,
2816 ) {
2817 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2818
2819 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2820 let tail = tail.to_display_point(&display_map);
2821 self.select_columns(tail, position, goal_column, &display_map, cx);
2822 } else if let Some(mut pending) = self.selections.pending_anchor() {
2823 let buffer = self.buffer.read(cx).snapshot(cx);
2824 let head;
2825 let tail;
2826 let mode = self.selections.pending_mode().unwrap();
2827 match &mode {
2828 SelectMode::Character => {
2829 head = position.to_point(&display_map);
2830 tail = pending.tail().to_point(&buffer);
2831 }
2832 SelectMode::Word(original_range) => {
2833 let original_display_range = original_range.start.to_display_point(&display_map)
2834 ..original_range.end.to_display_point(&display_map);
2835 let original_buffer_range = original_display_range.start.to_point(&display_map)
2836 ..original_display_range.end.to_point(&display_map);
2837 if movement::is_inside_word(&display_map, position)
2838 || original_display_range.contains(&position)
2839 {
2840 let word_range = movement::surrounding_word(&display_map, position);
2841 if word_range.start < original_display_range.start {
2842 head = word_range.start.to_point(&display_map);
2843 } else {
2844 head = word_range.end.to_point(&display_map);
2845 }
2846 } else {
2847 head = position.to_point(&display_map);
2848 }
2849
2850 if head <= original_buffer_range.start {
2851 tail = original_buffer_range.end;
2852 } else {
2853 tail = original_buffer_range.start;
2854 }
2855 }
2856 SelectMode::Line(original_range) => {
2857 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2858
2859 let position = display_map
2860 .clip_point(position, Bias::Left)
2861 .to_point(&display_map);
2862 let line_start = display_map.prev_line_boundary(position).0;
2863 let next_line_start = buffer.clip_point(
2864 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2865 Bias::Left,
2866 );
2867
2868 if line_start < original_range.start {
2869 head = line_start
2870 } else {
2871 head = next_line_start
2872 }
2873
2874 if head <= original_range.start {
2875 tail = original_range.end;
2876 } else {
2877 tail = original_range.start;
2878 }
2879 }
2880 SelectMode::All => {
2881 return;
2882 }
2883 };
2884
2885 if head < tail {
2886 pending.start = buffer.anchor_before(head);
2887 pending.end = buffer.anchor_before(tail);
2888 pending.reversed = true;
2889 } else {
2890 pending.start = buffer.anchor_before(tail);
2891 pending.end = buffer.anchor_before(head);
2892 pending.reversed = false;
2893 }
2894
2895 self.change_selections(None, cx, |s| {
2896 s.set_pending(pending, mode);
2897 });
2898 } else {
2899 log::error!("update_selection dispatched with no pending selection");
2900 return;
2901 }
2902
2903 self.apply_scroll_delta(scroll_delta, cx);
2904 cx.notify();
2905 }
2906
2907 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2908 self.columnar_selection_tail.take();
2909 if self.selections.pending_anchor().is_some() {
2910 let selections = self.selections.all::<usize>(cx);
2911 self.change_selections(None, cx, |s| {
2912 s.select(selections);
2913 s.clear_pending();
2914 });
2915 }
2916 }
2917
2918 fn select_columns(
2919 &mut self,
2920 tail: DisplayPoint,
2921 head: DisplayPoint,
2922 goal_column: u32,
2923 display_map: &DisplaySnapshot,
2924 cx: &mut ViewContext<Self>,
2925 ) {
2926 let start_row = cmp::min(tail.row(), head.row());
2927 let end_row = cmp::max(tail.row(), head.row());
2928 let start_column = cmp::min(tail.column(), goal_column);
2929 let end_column = cmp::max(tail.column(), goal_column);
2930 let reversed = start_column < tail.column();
2931
2932 let selection_ranges = (start_row.0..=end_row.0)
2933 .map(DisplayRow)
2934 .filter_map(|row| {
2935 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2936 let start = display_map
2937 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2938 .to_point(display_map);
2939 let end = display_map
2940 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2941 .to_point(display_map);
2942 if reversed {
2943 Some(end..start)
2944 } else {
2945 Some(start..end)
2946 }
2947 } else {
2948 None
2949 }
2950 })
2951 .collect::<Vec<_>>();
2952
2953 self.change_selections(None, cx, |s| {
2954 s.select_ranges(selection_ranges);
2955 });
2956 cx.notify();
2957 }
2958
2959 pub fn has_pending_nonempty_selection(&self) -> bool {
2960 let pending_nonempty_selection = match self.selections.pending_anchor() {
2961 Some(Selection { start, end, .. }) => start != end,
2962 None => false,
2963 };
2964
2965 pending_nonempty_selection
2966 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2967 }
2968
2969 pub fn has_pending_selection(&self) -> bool {
2970 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2971 }
2972
2973 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2974 if self.clear_clicked_diff_hunks(cx) {
2975 cx.notify();
2976 return;
2977 }
2978 if self.dismiss_menus_and_popups(true, cx) {
2979 return;
2980 }
2981
2982 if self.mode == EditorMode::Full
2983 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
2984 {
2985 return;
2986 }
2987
2988 cx.propagate();
2989 }
2990
2991 pub fn dismiss_menus_and_popups(
2992 &mut self,
2993 should_report_inline_completion_event: bool,
2994 cx: &mut ViewContext<Self>,
2995 ) -> bool {
2996 if self.take_rename(false, cx).is_some() {
2997 return true;
2998 }
2999
3000 if hide_hover(self, cx) {
3001 return true;
3002 }
3003
3004 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3005 return true;
3006 }
3007
3008 if self.hide_context_menu(cx).is_some() {
3009 return true;
3010 }
3011
3012 if self.mouse_context_menu.take().is_some() {
3013 return true;
3014 }
3015
3016 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3017 return true;
3018 }
3019
3020 if self.snippet_stack.pop().is_some() {
3021 return true;
3022 }
3023
3024 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3025 self.dismiss_diagnostics(cx);
3026 return true;
3027 }
3028
3029 false
3030 }
3031
3032 fn linked_editing_ranges_for(
3033 &self,
3034 selection: Range<text::Anchor>,
3035 cx: &AppContext,
3036 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3037 if self.linked_edit_ranges.is_empty() {
3038 return None;
3039 }
3040 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3041 selection.end.buffer_id.and_then(|end_buffer_id| {
3042 if selection.start.buffer_id != Some(end_buffer_id) {
3043 return None;
3044 }
3045 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3046 let snapshot = buffer.read(cx).snapshot();
3047 self.linked_edit_ranges
3048 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3049 .map(|ranges| (ranges, snapshot, buffer))
3050 })?;
3051 use text::ToOffset as TO;
3052 // find offset from the start of current range to current cursor position
3053 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3054
3055 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3056 let start_difference = start_offset - start_byte_offset;
3057 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3058 let end_difference = end_offset - start_byte_offset;
3059 // Current range has associated linked ranges.
3060 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3061 for range in linked_ranges.iter() {
3062 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3063 let end_offset = start_offset + end_difference;
3064 let start_offset = start_offset + start_difference;
3065 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3066 continue;
3067 }
3068 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3069 if s.start.buffer_id != selection.start.buffer_id
3070 || s.end.buffer_id != selection.end.buffer_id
3071 {
3072 return false;
3073 }
3074 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3075 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3076 }) {
3077 continue;
3078 }
3079 let start = buffer_snapshot.anchor_after(start_offset);
3080 let end = buffer_snapshot.anchor_after(end_offset);
3081 linked_edits
3082 .entry(buffer.clone())
3083 .or_default()
3084 .push(start..end);
3085 }
3086 Some(linked_edits)
3087 }
3088
3089 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3090 let text: Arc<str> = text.into();
3091
3092 if self.read_only(cx) {
3093 return;
3094 }
3095
3096 let selections = self.selections.all_adjusted(cx);
3097 let mut bracket_inserted = false;
3098 let mut edits = Vec::new();
3099 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3100 let mut new_selections = Vec::with_capacity(selections.len());
3101 let mut new_autoclose_regions = Vec::new();
3102 let snapshot = self.buffer.read(cx).read(cx);
3103
3104 for (selection, autoclose_region) in
3105 self.selections_with_autoclose_regions(selections, &snapshot)
3106 {
3107 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3108 // Determine if the inserted text matches the opening or closing
3109 // bracket of any of this language's bracket pairs.
3110 let mut bracket_pair = None;
3111 let mut is_bracket_pair_start = false;
3112 let mut is_bracket_pair_end = false;
3113 if !text.is_empty() {
3114 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3115 // and they are removing the character that triggered IME popup.
3116 for (pair, enabled) in scope.brackets() {
3117 if !pair.close && !pair.surround {
3118 continue;
3119 }
3120
3121 if enabled && pair.start.ends_with(text.as_ref()) {
3122 bracket_pair = Some(pair.clone());
3123 is_bracket_pair_start = true;
3124 break;
3125 }
3126 if pair.end.as_str() == text.as_ref() {
3127 bracket_pair = Some(pair.clone());
3128 is_bracket_pair_end = true;
3129 break;
3130 }
3131 }
3132 }
3133
3134 if let Some(bracket_pair) = bracket_pair {
3135 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3136 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3137 let auto_surround =
3138 self.use_auto_surround && snapshot_settings.use_auto_surround;
3139 if selection.is_empty() {
3140 if is_bracket_pair_start {
3141 let prefix_len = bracket_pair.start.len() - text.len();
3142
3143 // If the inserted text is a suffix of an opening bracket and the
3144 // selection is preceded by the rest of the opening bracket, then
3145 // insert the closing bracket.
3146 let following_text_allows_autoclose = snapshot
3147 .chars_at(selection.start)
3148 .next()
3149 .map_or(true, |c| scope.should_autoclose_before(c));
3150 let preceding_text_matches_prefix = prefix_len == 0
3151 || (selection.start.column >= (prefix_len as u32)
3152 && snapshot.contains_str_at(
3153 Point::new(
3154 selection.start.row,
3155 selection.start.column - (prefix_len as u32),
3156 ),
3157 &bracket_pair.start[..prefix_len],
3158 ));
3159
3160 if autoclose
3161 && bracket_pair.close
3162 && following_text_allows_autoclose
3163 && preceding_text_matches_prefix
3164 {
3165 let anchor = snapshot.anchor_before(selection.end);
3166 new_selections.push((selection.map(|_| anchor), text.len()));
3167 new_autoclose_regions.push((
3168 anchor,
3169 text.len(),
3170 selection.id,
3171 bracket_pair.clone(),
3172 ));
3173 edits.push((
3174 selection.range(),
3175 format!("{}{}", text, bracket_pair.end).into(),
3176 ));
3177 bracket_inserted = true;
3178 continue;
3179 }
3180 }
3181
3182 if let Some(region) = autoclose_region {
3183 // If the selection is followed by an auto-inserted closing bracket,
3184 // then don't insert that closing bracket again; just move the selection
3185 // past the closing bracket.
3186 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3187 && text.as_ref() == region.pair.end.as_str();
3188 if should_skip {
3189 let anchor = snapshot.anchor_after(selection.end);
3190 new_selections
3191 .push((selection.map(|_| anchor), region.pair.end.len()));
3192 continue;
3193 }
3194 }
3195
3196 let always_treat_brackets_as_autoclosed = snapshot
3197 .settings_at(selection.start, cx)
3198 .always_treat_brackets_as_autoclosed;
3199 if always_treat_brackets_as_autoclosed
3200 && is_bracket_pair_end
3201 && snapshot.contains_str_at(selection.end, text.as_ref())
3202 {
3203 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3204 // and the inserted text is a closing bracket and the selection is followed
3205 // by the closing bracket then move the selection past the closing bracket.
3206 let anchor = snapshot.anchor_after(selection.end);
3207 new_selections.push((selection.map(|_| anchor), text.len()));
3208 continue;
3209 }
3210 }
3211 // If an opening bracket is 1 character long and is typed while
3212 // text is selected, then surround that text with the bracket pair.
3213 else if auto_surround
3214 && bracket_pair.surround
3215 && is_bracket_pair_start
3216 && bracket_pair.start.chars().count() == 1
3217 {
3218 edits.push((selection.start..selection.start, text.clone()));
3219 edits.push((
3220 selection.end..selection.end,
3221 bracket_pair.end.as_str().into(),
3222 ));
3223 bracket_inserted = true;
3224 new_selections.push((
3225 Selection {
3226 id: selection.id,
3227 start: snapshot.anchor_after(selection.start),
3228 end: snapshot.anchor_before(selection.end),
3229 reversed: selection.reversed,
3230 goal: selection.goal,
3231 },
3232 0,
3233 ));
3234 continue;
3235 }
3236 }
3237 }
3238
3239 if self.auto_replace_emoji_shortcode
3240 && selection.is_empty()
3241 && text.as_ref().ends_with(':')
3242 {
3243 if let Some(possible_emoji_short_code) =
3244 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3245 {
3246 if !possible_emoji_short_code.is_empty() {
3247 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3248 let emoji_shortcode_start = Point::new(
3249 selection.start.row,
3250 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3251 );
3252
3253 // Remove shortcode from buffer
3254 edits.push((
3255 emoji_shortcode_start..selection.start,
3256 "".to_string().into(),
3257 ));
3258 new_selections.push((
3259 Selection {
3260 id: selection.id,
3261 start: snapshot.anchor_after(emoji_shortcode_start),
3262 end: snapshot.anchor_before(selection.start),
3263 reversed: selection.reversed,
3264 goal: selection.goal,
3265 },
3266 0,
3267 ));
3268
3269 // Insert emoji
3270 let selection_start_anchor = snapshot.anchor_after(selection.start);
3271 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3272 edits.push((selection.start..selection.end, emoji.to_string().into()));
3273
3274 continue;
3275 }
3276 }
3277 }
3278 }
3279
3280 // If not handling any auto-close operation, then just replace the selected
3281 // text with the given input and move the selection to the end of the
3282 // newly inserted text.
3283 let anchor = snapshot.anchor_after(selection.end);
3284 if !self.linked_edit_ranges.is_empty() {
3285 let start_anchor = snapshot.anchor_before(selection.start);
3286
3287 let is_word_char = text.chars().next().map_or(true, |char| {
3288 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3289 classifier.is_word(char)
3290 });
3291
3292 if is_word_char {
3293 if let Some(ranges) = self
3294 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3295 {
3296 for (buffer, edits) in ranges {
3297 linked_edits
3298 .entry(buffer.clone())
3299 .or_default()
3300 .extend(edits.into_iter().map(|range| (range, text.clone())));
3301 }
3302 }
3303 }
3304 }
3305
3306 new_selections.push((selection.map(|_| anchor), 0));
3307 edits.push((selection.start..selection.end, text.clone()));
3308 }
3309
3310 drop(snapshot);
3311
3312 self.transact(cx, |this, cx| {
3313 this.buffer.update(cx, |buffer, cx| {
3314 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3315 });
3316 for (buffer, edits) in linked_edits {
3317 buffer.update(cx, |buffer, cx| {
3318 let snapshot = buffer.snapshot();
3319 let edits = edits
3320 .into_iter()
3321 .map(|(range, text)| {
3322 use text::ToPoint as TP;
3323 let end_point = TP::to_point(&range.end, &snapshot);
3324 let start_point = TP::to_point(&range.start, &snapshot);
3325 (start_point..end_point, text)
3326 })
3327 .sorted_by_key(|(range, _)| range.start)
3328 .collect::<Vec<_>>();
3329 buffer.edit(edits, None, cx);
3330 })
3331 }
3332 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3333 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3334 let snapshot = this.buffer.read(cx).read(cx);
3335 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
3336 .zip(new_selection_deltas)
3337 .map(|(selection, delta)| Selection {
3338 id: selection.id,
3339 start: selection.start + delta,
3340 end: selection.end + delta,
3341 reversed: selection.reversed,
3342 goal: SelectionGoal::None,
3343 })
3344 .collect::<Vec<_>>();
3345
3346 let mut i = 0;
3347 for (position, delta, selection_id, pair) in new_autoclose_regions {
3348 let position = position.to_offset(&snapshot) + delta;
3349 let start = snapshot.anchor_before(position);
3350 let end = snapshot.anchor_after(position);
3351 while let Some(existing_state) = this.autoclose_regions.get(i) {
3352 match existing_state.range.start.cmp(&start, &snapshot) {
3353 Ordering::Less => i += 1,
3354 Ordering::Greater => break,
3355 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
3356 Ordering::Less => i += 1,
3357 Ordering::Equal => break,
3358 Ordering::Greater => break,
3359 },
3360 }
3361 }
3362 this.autoclose_regions.insert(
3363 i,
3364 AutocloseRegion {
3365 selection_id,
3366 range: start..end,
3367 pair,
3368 },
3369 );
3370 }
3371
3372 drop(snapshot);
3373 let had_active_inline_completion = this.has_active_inline_completion(cx);
3374 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3375 s.select(new_selections)
3376 });
3377
3378 if !bracket_inserted && EditorSettings::get_global(cx).use_on_type_format {
3379 if let Some(on_type_format_task) =
3380 this.trigger_on_type_formatting(text.to_string(), cx)
3381 {
3382 on_type_format_task.detach_and_log_err(cx);
3383 }
3384 }
3385
3386 let editor_settings = EditorSettings::get_global(cx);
3387 if bracket_inserted
3388 && (editor_settings.auto_signature_help
3389 || editor_settings.show_signature_help_after_edits)
3390 {
3391 this.show_signature_help(&ShowSignatureHelp, cx);
3392 }
3393
3394 let trigger_in_words = !had_active_inline_completion;
3395 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3396 linked_editing_ranges::refresh_linked_ranges(this, cx);
3397 this.refresh_inline_completion(true, false, cx);
3398 });
3399 }
3400
3401 fn find_possible_emoji_shortcode_at_position(
3402 snapshot: &MultiBufferSnapshot,
3403 position: Point,
3404 ) -> Option<String> {
3405 let mut chars = Vec::new();
3406 let mut found_colon = false;
3407 for char in snapshot.reversed_chars_at(position).take(100) {
3408 // Found a possible emoji shortcode in the middle of the buffer
3409 if found_colon {
3410 if char.is_whitespace() {
3411 chars.reverse();
3412 return Some(chars.iter().collect());
3413 }
3414 // If the previous character is not a whitespace, we are in the middle of a word
3415 // and we only want to complete the shortcode if the word is made up of other emojis
3416 let mut containing_word = String::new();
3417 for ch in snapshot
3418 .reversed_chars_at(position)
3419 .skip(chars.len() + 1)
3420 .take(100)
3421 {
3422 if ch.is_whitespace() {
3423 break;
3424 }
3425 containing_word.push(ch);
3426 }
3427 let containing_word = containing_word.chars().rev().collect::<String>();
3428 if util::word_consists_of_emojis(containing_word.as_str()) {
3429 chars.reverse();
3430 return Some(chars.iter().collect());
3431 }
3432 }
3433
3434 if char.is_whitespace() || !char.is_ascii() {
3435 return None;
3436 }
3437 if char == ':' {
3438 found_colon = true;
3439 } else {
3440 chars.push(char);
3441 }
3442 }
3443 // Found a possible emoji shortcode at the beginning of the buffer
3444 chars.reverse();
3445 Some(chars.iter().collect())
3446 }
3447
3448 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3449 self.transact(cx, |this, cx| {
3450 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3451 let selections = this.selections.all::<usize>(cx);
3452 let multi_buffer = this.buffer.read(cx);
3453 let buffer = multi_buffer.snapshot(cx);
3454 selections
3455 .iter()
3456 .map(|selection| {
3457 let start_point = selection.start.to_point(&buffer);
3458 let mut indent =
3459 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3460 indent.len = cmp::min(indent.len, start_point.column);
3461 let start = selection.start;
3462 let end = selection.end;
3463 let selection_is_empty = start == end;
3464 let language_scope = buffer.language_scope_at(start);
3465 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3466 &language_scope
3467 {
3468 let leading_whitespace_len = buffer
3469 .reversed_chars_at(start)
3470 .take_while(|c| c.is_whitespace() && *c != '\n')
3471 .map(|c| c.len_utf8())
3472 .sum::<usize>();
3473
3474 let trailing_whitespace_len = buffer
3475 .chars_at(end)
3476 .take_while(|c| c.is_whitespace() && *c != '\n')
3477 .map(|c| c.len_utf8())
3478 .sum::<usize>();
3479
3480 let insert_extra_newline =
3481 language.brackets().any(|(pair, enabled)| {
3482 let pair_start = pair.start.trim_end();
3483 let pair_end = pair.end.trim_start();
3484
3485 enabled
3486 && pair.newline
3487 && buffer.contains_str_at(
3488 end + trailing_whitespace_len,
3489 pair_end,
3490 )
3491 && buffer.contains_str_at(
3492 (start - leading_whitespace_len)
3493 .saturating_sub(pair_start.len()),
3494 pair_start,
3495 )
3496 });
3497
3498 // Comment extension on newline is allowed only for cursor selections
3499 let comment_delimiter = maybe!({
3500 if !selection_is_empty {
3501 return None;
3502 }
3503
3504 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3505 return None;
3506 }
3507
3508 let delimiters = language.line_comment_prefixes();
3509 let max_len_of_delimiter =
3510 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3511 let (snapshot, range) =
3512 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3513
3514 let mut index_of_first_non_whitespace = 0;
3515 let comment_candidate = snapshot
3516 .chars_for_range(range)
3517 .skip_while(|c| {
3518 let should_skip = c.is_whitespace();
3519 if should_skip {
3520 index_of_first_non_whitespace += 1;
3521 }
3522 should_skip
3523 })
3524 .take(max_len_of_delimiter)
3525 .collect::<String>();
3526 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3527 comment_candidate.starts_with(comment_prefix.as_ref())
3528 })?;
3529 let cursor_is_placed_after_comment_marker =
3530 index_of_first_non_whitespace + comment_prefix.len()
3531 <= start_point.column as usize;
3532 if cursor_is_placed_after_comment_marker {
3533 Some(comment_prefix.clone())
3534 } else {
3535 None
3536 }
3537 });
3538 (comment_delimiter, insert_extra_newline)
3539 } else {
3540 (None, false)
3541 };
3542
3543 let capacity_for_delimiter = comment_delimiter
3544 .as_deref()
3545 .map(str::len)
3546 .unwrap_or_default();
3547 let mut new_text =
3548 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3549 new_text.push('\n');
3550 new_text.extend(indent.chars());
3551 if let Some(delimiter) = &comment_delimiter {
3552 new_text.push_str(delimiter);
3553 }
3554 if insert_extra_newline {
3555 new_text = new_text.repeat(2);
3556 }
3557
3558 let anchor = buffer.anchor_after(end);
3559 let new_selection = selection.map(|_| anchor);
3560 (
3561 (start..end, new_text),
3562 (insert_extra_newline, new_selection),
3563 )
3564 })
3565 .unzip()
3566 };
3567
3568 this.edit_with_autoindent(edits, cx);
3569 let buffer = this.buffer.read(cx).snapshot(cx);
3570 let new_selections = selection_fixup_info
3571 .into_iter()
3572 .map(|(extra_newline_inserted, new_selection)| {
3573 let mut cursor = new_selection.end.to_point(&buffer);
3574 if extra_newline_inserted {
3575 cursor.row -= 1;
3576 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3577 }
3578 new_selection.map(|_| cursor)
3579 })
3580 .collect();
3581
3582 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3583 this.refresh_inline_completion(true, false, cx);
3584 });
3585 }
3586
3587 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3588 let buffer = self.buffer.read(cx);
3589 let snapshot = buffer.snapshot(cx);
3590
3591 let mut edits = Vec::new();
3592 let mut rows = Vec::new();
3593
3594 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3595 let cursor = selection.head();
3596 let row = cursor.row;
3597
3598 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3599
3600 let newline = "\n".to_string();
3601 edits.push((start_of_line..start_of_line, newline));
3602
3603 rows.push(row + rows_inserted as u32);
3604 }
3605
3606 self.transact(cx, |editor, cx| {
3607 editor.edit(edits, cx);
3608
3609 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3610 let mut index = 0;
3611 s.move_cursors_with(|map, _, _| {
3612 let row = rows[index];
3613 index += 1;
3614
3615 let point = Point::new(row, 0);
3616 let boundary = map.next_line_boundary(point).1;
3617 let clipped = map.clip_point(boundary, Bias::Left);
3618
3619 (clipped, SelectionGoal::None)
3620 });
3621 });
3622
3623 let mut indent_edits = Vec::new();
3624 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3625 for row in rows {
3626 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3627 for (row, indent) in indents {
3628 if indent.len == 0 {
3629 continue;
3630 }
3631
3632 let text = match indent.kind {
3633 IndentKind::Space => " ".repeat(indent.len as usize),
3634 IndentKind::Tab => "\t".repeat(indent.len as usize),
3635 };
3636 let point = Point::new(row.0, 0);
3637 indent_edits.push((point..point, text));
3638 }
3639 }
3640 editor.edit(indent_edits, cx);
3641 });
3642 }
3643
3644 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3645 let buffer = self.buffer.read(cx);
3646 let snapshot = buffer.snapshot(cx);
3647
3648 let mut edits = Vec::new();
3649 let mut rows = Vec::new();
3650 let mut rows_inserted = 0;
3651
3652 for selection in self.selections.all_adjusted(cx) {
3653 let cursor = selection.head();
3654 let row = cursor.row;
3655
3656 let point = Point::new(row + 1, 0);
3657 let start_of_line = snapshot.clip_point(point, Bias::Left);
3658
3659 let newline = "\n".to_string();
3660 edits.push((start_of_line..start_of_line, newline));
3661
3662 rows_inserted += 1;
3663 rows.push(row + rows_inserted);
3664 }
3665
3666 self.transact(cx, |editor, cx| {
3667 editor.edit(edits, cx);
3668
3669 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3670 let mut index = 0;
3671 s.move_cursors_with(|map, _, _| {
3672 let row = rows[index];
3673 index += 1;
3674
3675 let point = Point::new(row, 0);
3676 let boundary = map.next_line_boundary(point).1;
3677 let clipped = map.clip_point(boundary, Bias::Left);
3678
3679 (clipped, SelectionGoal::None)
3680 });
3681 });
3682
3683 let mut indent_edits = Vec::new();
3684 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3685 for row in rows {
3686 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3687 for (row, indent) in indents {
3688 if indent.len == 0 {
3689 continue;
3690 }
3691
3692 let text = match indent.kind {
3693 IndentKind::Space => " ".repeat(indent.len as usize),
3694 IndentKind::Tab => "\t".repeat(indent.len as usize),
3695 };
3696 let point = Point::new(row.0, 0);
3697 indent_edits.push((point..point, text));
3698 }
3699 }
3700 editor.edit(indent_edits, cx);
3701 });
3702 }
3703
3704 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3705 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3706 original_indent_columns: Vec::new(),
3707 });
3708 self.insert_with_autoindent_mode(text, autoindent, cx);
3709 }
3710
3711 fn insert_with_autoindent_mode(
3712 &mut self,
3713 text: &str,
3714 autoindent_mode: Option<AutoindentMode>,
3715 cx: &mut ViewContext<Self>,
3716 ) {
3717 if self.read_only(cx) {
3718 return;
3719 }
3720
3721 let text: Arc<str> = text.into();
3722 self.transact(cx, |this, cx| {
3723 let old_selections = this.selections.all_adjusted(cx);
3724 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3725 let anchors = {
3726 let snapshot = buffer.read(cx);
3727 old_selections
3728 .iter()
3729 .map(|s| {
3730 let anchor = snapshot.anchor_after(s.head());
3731 s.map(|_| anchor)
3732 })
3733 .collect::<Vec<_>>()
3734 };
3735 buffer.edit(
3736 old_selections
3737 .iter()
3738 .map(|s| (s.start..s.end, text.clone())),
3739 autoindent_mode,
3740 cx,
3741 );
3742 anchors
3743 });
3744
3745 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3746 s.select_anchors(selection_anchors);
3747 })
3748 });
3749 }
3750
3751 fn trigger_completion_on_input(
3752 &mut self,
3753 text: &str,
3754 trigger_in_words: bool,
3755 cx: &mut ViewContext<Self>,
3756 ) {
3757 if self.is_completion_trigger(text, trigger_in_words, cx) {
3758 self.show_completions(
3759 &ShowCompletions {
3760 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3761 },
3762 cx,
3763 );
3764 } else {
3765 self.hide_context_menu(cx);
3766 }
3767 }
3768
3769 fn is_completion_trigger(
3770 &self,
3771 text: &str,
3772 trigger_in_words: bool,
3773 cx: &mut ViewContext<Self>,
3774 ) -> bool {
3775 let position = self.selections.newest_anchor().head();
3776 let multibuffer = self.buffer.read(cx);
3777 let Some(buffer) = position
3778 .buffer_id
3779 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3780 else {
3781 return false;
3782 };
3783
3784 if let Some(completion_provider) = &self.completion_provider {
3785 completion_provider.is_completion_trigger(
3786 &buffer,
3787 position.text_anchor,
3788 text,
3789 trigger_in_words,
3790 cx,
3791 )
3792 } else {
3793 false
3794 }
3795 }
3796
3797 /// If any empty selections is touching the start of its innermost containing autoclose
3798 /// region, expand it to select the brackets.
3799 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3800 let selections = self.selections.all::<usize>(cx);
3801 let buffer = self.buffer.read(cx).read(cx);
3802 let new_selections = self
3803 .selections_with_autoclose_regions(selections, &buffer)
3804 .map(|(mut selection, region)| {
3805 if !selection.is_empty() {
3806 return selection;
3807 }
3808
3809 if let Some(region) = region {
3810 let mut range = region.range.to_offset(&buffer);
3811 if selection.start == range.start && range.start >= region.pair.start.len() {
3812 range.start -= region.pair.start.len();
3813 if buffer.contains_str_at(range.start, ®ion.pair.start)
3814 && buffer.contains_str_at(range.end, ®ion.pair.end)
3815 {
3816 range.end += region.pair.end.len();
3817 selection.start = range.start;
3818 selection.end = range.end;
3819
3820 return selection;
3821 }
3822 }
3823 }
3824
3825 let always_treat_brackets_as_autoclosed = buffer
3826 .settings_at(selection.start, cx)
3827 .always_treat_brackets_as_autoclosed;
3828
3829 if !always_treat_brackets_as_autoclosed {
3830 return selection;
3831 }
3832
3833 if let Some(scope) = buffer.language_scope_at(selection.start) {
3834 for (pair, enabled) in scope.brackets() {
3835 if !enabled || !pair.close {
3836 continue;
3837 }
3838
3839 if buffer.contains_str_at(selection.start, &pair.end) {
3840 let pair_start_len = pair.start.len();
3841 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3842 {
3843 selection.start -= pair_start_len;
3844 selection.end += pair.end.len();
3845
3846 return selection;
3847 }
3848 }
3849 }
3850 }
3851
3852 selection
3853 })
3854 .collect();
3855
3856 drop(buffer);
3857 self.change_selections(None, cx, |selections| selections.select(new_selections));
3858 }
3859
3860 /// Iterate the given selections, and for each one, find the smallest surrounding
3861 /// autoclose region. This uses the ordering of the selections and the autoclose
3862 /// regions to avoid repeated comparisons.
3863 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3864 &'a self,
3865 selections: impl IntoIterator<Item = Selection<D>>,
3866 buffer: &'a MultiBufferSnapshot,
3867 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3868 let mut i = 0;
3869 let mut regions = self.autoclose_regions.as_slice();
3870 selections.into_iter().map(move |selection| {
3871 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3872
3873 let mut enclosing = None;
3874 while let Some(pair_state) = regions.get(i) {
3875 if pair_state.range.end.to_offset(buffer) < range.start {
3876 regions = ®ions[i + 1..];
3877 i = 0;
3878 } else if pair_state.range.start.to_offset(buffer) > range.end {
3879 break;
3880 } else {
3881 if pair_state.selection_id == selection.id {
3882 enclosing = Some(pair_state);
3883 }
3884 i += 1;
3885 }
3886 }
3887
3888 (selection.clone(), enclosing)
3889 })
3890 }
3891
3892 /// Remove any autoclose regions that no longer contain their selection.
3893 fn invalidate_autoclose_regions(
3894 &mut self,
3895 mut selections: &[Selection<Anchor>],
3896 buffer: &MultiBufferSnapshot,
3897 ) {
3898 self.autoclose_regions.retain(|state| {
3899 let mut i = 0;
3900 while let Some(selection) = selections.get(i) {
3901 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3902 selections = &selections[1..];
3903 continue;
3904 }
3905 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3906 break;
3907 }
3908 if selection.id == state.selection_id {
3909 return true;
3910 } else {
3911 i += 1;
3912 }
3913 }
3914 false
3915 });
3916 }
3917
3918 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3919 let offset = position.to_offset(buffer);
3920 let (word_range, kind) = buffer.surrounding_word(offset, true);
3921 if offset > word_range.start && kind == Some(CharKind::Word) {
3922 Some(
3923 buffer
3924 .text_for_range(word_range.start..offset)
3925 .collect::<String>(),
3926 )
3927 } else {
3928 None
3929 }
3930 }
3931
3932 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3933 self.refresh_inlay_hints(
3934 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3935 cx,
3936 );
3937 }
3938
3939 pub fn inlay_hints_enabled(&self) -> bool {
3940 self.inlay_hint_cache.enabled
3941 }
3942
3943 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3944 if self.project.is_none() || self.mode != EditorMode::Full {
3945 return;
3946 }
3947
3948 let reason_description = reason.description();
3949 let ignore_debounce = matches!(
3950 reason,
3951 InlayHintRefreshReason::SettingsChange(_)
3952 | InlayHintRefreshReason::Toggle(_)
3953 | InlayHintRefreshReason::ExcerptsRemoved(_)
3954 );
3955 let (invalidate_cache, required_languages) = match reason {
3956 InlayHintRefreshReason::Toggle(enabled) => {
3957 self.inlay_hint_cache.enabled = enabled;
3958 if enabled {
3959 (InvalidationStrategy::RefreshRequested, None)
3960 } else {
3961 self.inlay_hint_cache.clear();
3962 self.splice_inlays(
3963 self.visible_inlay_hints(cx)
3964 .iter()
3965 .map(|inlay| inlay.id)
3966 .collect(),
3967 Vec::new(),
3968 cx,
3969 );
3970 return;
3971 }
3972 }
3973 InlayHintRefreshReason::SettingsChange(new_settings) => {
3974 match self.inlay_hint_cache.update_settings(
3975 &self.buffer,
3976 new_settings,
3977 self.visible_inlay_hints(cx),
3978 cx,
3979 ) {
3980 ControlFlow::Break(Some(InlaySplice {
3981 to_remove,
3982 to_insert,
3983 })) => {
3984 self.splice_inlays(to_remove, to_insert, cx);
3985 return;
3986 }
3987 ControlFlow::Break(None) => return,
3988 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3989 }
3990 }
3991 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3992 if let Some(InlaySplice {
3993 to_remove,
3994 to_insert,
3995 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3996 {
3997 self.splice_inlays(to_remove, to_insert, cx);
3998 }
3999 return;
4000 }
4001 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4002 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4003 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4004 }
4005 InlayHintRefreshReason::RefreshRequested => {
4006 (InvalidationStrategy::RefreshRequested, None)
4007 }
4008 };
4009
4010 if let Some(InlaySplice {
4011 to_remove,
4012 to_insert,
4013 }) = self.inlay_hint_cache.spawn_hint_refresh(
4014 reason_description,
4015 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4016 invalidate_cache,
4017 ignore_debounce,
4018 cx,
4019 ) {
4020 self.splice_inlays(to_remove, to_insert, cx);
4021 }
4022 }
4023
4024 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4025 self.display_map
4026 .read(cx)
4027 .current_inlays()
4028 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4029 .cloned()
4030 .collect()
4031 }
4032
4033 pub fn excerpts_for_inlay_hints_query(
4034 &self,
4035 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4036 cx: &mut ViewContext<Editor>,
4037 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4038 let Some(project) = self.project.as_ref() else {
4039 return HashMap::default();
4040 };
4041 let project = project.read(cx);
4042 let multi_buffer = self.buffer().read(cx);
4043 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4044 let multi_buffer_visible_start = self
4045 .scroll_manager
4046 .anchor()
4047 .anchor
4048 .to_point(&multi_buffer_snapshot);
4049 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4050 multi_buffer_visible_start
4051 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4052 Bias::Left,
4053 );
4054 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4055 multi_buffer
4056 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4057 .into_iter()
4058 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4059 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4060 let buffer = buffer_handle.read(cx);
4061 let buffer_file = project::File::from_dyn(buffer.file())?;
4062 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4063 let worktree_entry = buffer_worktree
4064 .read(cx)
4065 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4066 if worktree_entry.is_ignored {
4067 return None;
4068 }
4069
4070 let language = buffer.language()?;
4071 if let Some(restrict_to_languages) = restrict_to_languages {
4072 if !restrict_to_languages.contains(language) {
4073 return None;
4074 }
4075 }
4076 Some((
4077 excerpt_id,
4078 (
4079 buffer_handle,
4080 buffer.version().clone(),
4081 excerpt_visible_range,
4082 ),
4083 ))
4084 })
4085 .collect()
4086 }
4087
4088 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4089 TextLayoutDetails {
4090 text_system: cx.text_system().clone(),
4091 editor_style: self.style.clone().unwrap(),
4092 rem_size: cx.rem_size(),
4093 scroll_anchor: self.scroll_manager.anchor(),
4094 visible_rows: self.visible_line_count(),
4095 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4096 }
4097 }
4098
4099 fn splice_inlays(
4100 &self,
4101 to_remove: Vec<InlayId>,
4102 to_insert: Vec<Inlay>,
4103 cx: &mut ViewContext<Self>,
4104 ) {
4105 self.display_map.update(cx, |display_map, cx| {
4106 display_map.splice_inlays(to_remove, to_insert, cx);
4107 });
4108 cx.notify();
4109 }
4110
4111 fn trigger_on_type_formatting(
4112 &self,
4113 input: String,
4114 cx: &mut ViewContext<Self>,
4115 ) -> Option<Task<Result<()>>> {
4116 if input.len() != 1 {
4117 return None;
4118 }
4119
4120 let project = self.project.as_ref()?;
4121 let position = self.selections.newest_anchor().head();
4122 let (buffer, buffer_position) = self
4123 .buffer
4124 .read(cx)
4125 .text_anchor_for_position(position, cx)?;
4126
4127 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4128 // hence we do LSP request & edit on host side only — add formats to host's history.
4129 let push_to_lsp_host_history = true;
4130 // If this is not the host, append its history with new edits.
4131 let push_to_client_history = project.read(cx).is_via_collab();
4132
4133 let on_type_formatting = project.update(cx, |project, cx| {
4134 project.on_type_format(
4135 buffer.clone(),
4136 buffer_position,
4137 input,
4138 push_to_lsp_host_history,
4139 cx,
4140 )
4141 });
4142 Some(cx.spawn(|editor, mut cx| async move {
4143 if let Some(transaction) = on_type_formatting.await? {
4144 if push_to_client_history {
4145 buffer
4146 .update(&mut cx, |buffer, _| {
4147 buffer.push_transaction(transaction, Instant::now());
4148 })
4149 .ok();
4150 }
4151 editor.update(&mut cx, |editor, cx| {
4152 editor.refresh_document_highlights(cx);
4153 })?;
4154 }
4155 Ok(())
4156 }))
4157 }
4158
4159 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4160 if self.pending_rename.is_some() {
4161 return;
4162 }
4163
4164 let Some(provider) = self.completion_provider.as_ref() else {
4165 return;
4166 };
4167
4168 let position = self.selections.newest_anchor().head();
4169 let (buffer, buffer_position) =
4170 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4171 output
4172 } else {
4173 return;
4174 };
4175
4176 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4177 let is_followup_invoke = {
4178 let context_menu_state = self.context_menu.read();
4179 matches!(
4180 context_menu_state.deref(),
4181 Some(ContextMenu::Completions(_))
4182 )
4183 };
4184 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4185 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4186 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4187 CompletionTriggerKind::TRIGGER_CHARACTER
4188 }
4189
4190 _ => CompletionTriggerKind::INVOKED,
4191 };
4192 let completion_context = CompletionContext {
4193 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4194 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4195 Some(String::from(trigger))
4196 } else {
4197 None
4198 }
4199 }),
4200 trigger_kind,
4201 };
4202 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4203 let sort_completions = provider.sort_completions();
4204
4205 let id = post_inc(&mut self.next_completion_id);
4206 let task = cx.spawn(|this, mut cx| {
4207 async move {
4208 this.update(&mut cx, |this, _| {
4209 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4210 })?;
4211 let completions = completions.await.log_err();
4212 let menu = if let Some(completions) = completions {
4213 let mut menu = CompletionsMenu {
4214 id,
4215 sort_completions,
4216 initial_position: position,
4217 match_candidates: completions
4218 .iter()
4219 .enumerate()
4220 .map(|(id, completion)| {
4221 StringMatchCandidate::new(
4222 id,
4223 completion.label.text[completion.label.filter_range.clone()]
4224 .into(),
4225 )
4226 })
4227 .collect(),
4228 buffer: buffer.clone(),
4229 completions: Arc::new(RwLock::new(completions.into())),
4230 matches: Vec::new().into(),
4231 selected_item: 0,
4232 scroll_handle: UniformListScrollHandle::new(),
4233 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4234 DebouncedDelay::new(),
4235 )),
4236 };
4237 menu.filter(query.as_deref(), cx.background_executor().clone())
4238 .await;
4239
4240 if menu.matches.is_empty() {
4241 None
4242 } else {
4243 this.update(&mut cx, |editor, cx| {
4244 let completions = menu.completions.clone();
4245 let matches = menu.matches.clone();
4246
4247 let delay_ms = EditorSettings::get_global(cx)
4248 .completion_documentation_secondary_query_debounce;
4249 let delay = Duration::from_millis(delay_ms);
4250 editor
4251 .completion_documentation_pre_resolve_debounce
4252 .fire_new(delay, cx, |editor, cx| {
4253 CompletionsMenu::pre_resolve_completion_documentation(
4254 buffer,
4255 completions,
4256 matches,
4257 editor,
4258 cx,
4259 )
4260 });
4261 })
4262 .ok();
4263 Some(menu)
4264 }
4265 } else {
4266 None
4267 };
4268
4269 this.update(&mut cx, |this, cx| {
4270 let mut context_menu = this.context_menu.write();
4271 match context_menu.as_ref() {
4272 None => {}
4273
4274 Some(ContextMenu::Completions(prev_menu)) => {
4275 if prev_menu.id > id {
4276 return;
4277 }
4278 }
4279
4280 _ => return,
4281 }
4282
4283 if this.focus_handle.is_focused(cx) && menu.is_some() {
4284 let menu = menu.unwrap();
4285 *context_menu = Some(ContextMenu::Completions(menu));
4286 drop(context_menu);
4287 this.discard_inline_completion(false, cx);
4288 cx.notify();
4289 } else if this.completion_tasks.len() <= 1 {
4290 // If there are no more completion tasks and the last menu was
4291 // empty, we should hide it. If it was already hidden, we should
4292 // also show the copilot completion when available.
4293 drop(context_menu);
4294 if this.hide_context_menu(cx).is_none() {
4295 this.update_visible_inline_completion(cx);
4296 }
4297 }
4298 })?;
4299
4300 Ok::<_, anyhow::Error>(())
4301 }
4302 .log_err()
4303 });
4304
4305 self.completion_tasks.push((id, task));
4306 }
4307
4308 pub fn confirm_completion(
4309 &mut self,
4310 action: &ConfirmCompletion,
4311 cx: &mut ViewContext<Self>,
4312 ) -> Option<Task<Result<()>>> {
4313 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4314 }
4315
4316 pub fn compose_completion(
4317 &mut self,
4318 action: &ComposeCompletion,
4319 cx: &mut ViewContext<Self>,
4320 ) -> Option<Task<Result<()>>> {
4321 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4322 }
4323
4324 fn do_completion(
4325 &mut self,
4326 item_ix: Option<usize>,
4327 intent: CompletionIntent,
4328 cx: &mut ViewContext<Editor>,
4329 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4330 use language::ToOffset as _;
4331
4332 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4333 menu
4334 } else {
4335 return None;
4336 };
4337
4338 let mat = completions_menu
4339 .matches
4340 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4341 let buffer_handle = completions_menu.buffer;
4342 let completions = completions_menu.completions.read();
4343 let completion = completions.get(mat.candidate_id)?;
4344 cx.stop_propagation();
4345
4346 let snippet;
4347 let text;
4348
4349 if completion.is_snippet() {
4350 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4351 text = snippet.as_ref().unwrap().text.clone();
4352 } else {
4353 snippet = None;
4354 text = completion.new_text.clone();
4355 };
4356 let selections = self.selections.all::<usize>(cx);
4357 let buffer = buffer_handle.read(cx);
4358 let old_range = completion.old_range.to_offset(buffer);
4359 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4360
4361 let newest_selection = self.selections.newest_anchor();
4362 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4363 return None;
4364 }
4365
4366 let lookbehind = newest_selection
4367 .start
4368 .text_anchor
4369 .to_offset(buffer)
4370 .saturating_sub(old_range.start);
4371 let lookahead = old_range
4372 .end
4373 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4374 let mut common_prefix_len = old_text
4375 .bytes()
4376 .zip(text.bytes())
4377 .take_while(|(a, b)| a == b)
4378 .count();
4379
4380 let snapshot = self.buffer.read(cx).snapshot(cx);
4381 let mut range_to_replace: Option<Range<isize>> = None;
4382 let mut ranges = Vec::new();
4383 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4384 for selection in &selections {
4385 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4386 let start = selection.start.saturating_sub(lookbehind);
4387 let end = selection.end + lookahead;
4388 if selection.id == newest_selection.id {
4389 range_to_replace = Some(
4390 ((start + common_prefix_len) as isize - selection.start as isize)
4391 ..(end as isize - selection.start as isize),
4392 );
4393 }
4394 ranges.push(start + common_prefix_len..end);
4395 } else {
4396 common_prefix_len = 0;
4397 ranges.clear();
4398 ranges.extend(selections.iter().map(|s| {
4399 if s.id == newest_selection.id {
4400 range_to_replace = Some(
4401 old_range.start.to_offset_utf16(&snapshot).0 as isize
4402 - selection.start as isize
4403 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4404 - selection.start as isize,
4405 );
4406 old_range.clone()
4407 } else {
4408 s.start..s.end
4409 }
4410 }));
4411 break;
4412 }
4413 if !self.linked_edit_ranges.is_empty() {
4414 let start_anchor = snapshot.anchor_before(selection.head());
4415 let end_anchor = snapshot.anchor_after(selection.tail());
4416 if let Some(ranges) = self
4417 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4418 {
4419 for (buffer, edits) in ranges {
4420 linked_edits.entry(buffer.clone()).or_default().extend(
4421 edits
4422 .into_iter()
4423 .map(|range| (range, text[common_prefix_len..].to_owned())),
4424 );
4425 }
4426 }
4427 }
4428 }
4429 let text = &text[common_prefix_len..];
4430
4431 cx.emit(EditorEvent::InputHandled {
4432 utf16_range_to_replace: range_to_replace,
4433 text: text.into(),
4434 });
4435
4436 self.transact(cx, |this, cx| {
4437 if let Some(mut snippet) = snippet {
4438 snippet.text = text.to_string();
4439 for tabstop in snippet.tabstops.iter_mut().flatten() {
4440 tabstop.start -= common_prefix_len as isize;
4441 tabstop.end -= common_prefix_len as isize;
4442 }
4443
4444 this.insert_snippet(&ranges, snippet, cx).log_err();
4445 } else {
4446 this.buffer.update(cx, |buffer, cx| {
4447 buffer.edit(
4448 ranges.iter().map(|range| (range.clone(), text)),
4449 this.autoindent_mode.clone(),
4450 cx,
4451 );
4452 });
4453 }
4454 for (buffer, edits) in linked_edits {
4455 buffer.update(cx, |buffer, cx| {
4456 let snapshot = buffer.snapshot();
4457 let edits = edits
4458 .into_iter()
4459 .map(|(range, text)| {
4460 use text::ToPoint as TP;
4461 let end_point = TP::to_point(&range.end, &snapshot);
4462 let start_point = TP::to_point(&range.start, &snapshot);
4463 (start_point..end_point, text)
4464 })
4465 .sorted_by_key(|(range, _)| range.start)
4466 .collect::<Vec<_>>();
4467 buffer.edit(edits, None, cx);
4468 })
4469 }
4470
4471 this.refresh_inline_completion(true, false, cx);
4472 });
4473
4474 let show_new_completions_on_confirm = completion
4475 .confirm
4476 .as_ref()
4477 .map_or(false, |confirm| confirm(intent, cx));
4478 if show_new_completions_on_confirm {
4479 self.show_completions(&ShowCompletions { trigger: None }, cx);
4480 }
4481
4482 let provider = self.completion_provider.as_ref()?;
4483 let apply_edits = provider.apply_additional_edits_for_completion(
4484 buffer_handle,
4485 completion.clone(),
4486 true,
4487 cx,
4488 );
4489
4490 let editor_settings = EditorSettings::get_global(cx);
4491 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4492 // After the code completion is finished, users often want to know what signatures are needed.
4493 // so we should automatically call signature_help
4494 self.show_signature_help(&ShowSignatureHelp, cx);
4495 }
4496
4497 Some(cx.foreground_executor().spawn(async move {
4498 apply_edits.await?;
4499 Ok(())
4500 }))
4501 }
4502
4503 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4504 let mut context_menu = self.context_menu.write();
4505 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4506 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4507 // Toggle if we're selecting the same one
4508 *context_menu = None;
4509 cx.notify();
4510 return;
4511 } else {
4512 // Otherwise, clear it and start a new one
4513 *context_menu = None;
4514 cx.notify();
4515 }
4516 }
4517 drop(context_menu);
4518 let snapshot = self.snapshot(cx);
4519 let deployed_from_indicator = action.deployed_from_indicator;
4520 let mut task = self.code_actions_task.take();
4521 let action = action.clone();
4522 cx.spawn(|editor, mut cx| async move {
4523 while let Some(prev_task) = task {
4524 prev_task.await;
4525 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4526 }
4527
4528 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4529 if editor.focus_handle.is_focused(cx) {
4530 let multibuffer_point = action
4531 .deployed_from_indicator
4532 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4533 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4534 let (buffer, buffer_row) = snapshot
4535 .buffer_snapshot
4536 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4537 .and_then(|(buffer_snapshot, range)| {
4538 editor
4539 .buffer
4540 .read(cx)
4541 .buffer(buffer_snapshot.remote_id())
4542 .map(|buffer| (buffer, range.start.row))
4543 })?;
4544 let (_, code_actions) = editor
4545 .available_code_actions
4546 .clone()
4547 .and_then(|(location, code_actions)| {
4548 let snapshot = location.buffer.read(cx).snapshot();
4549 let point_range = location.range.to_point(&snapshot);
4550 let point_range = point_range.start.row..=point_range.end.row;
4551 if point_range.contains(&buffer_row) {
4552 Some((location, code_actions))
4553 } else {
4554 None
4555 }
4556 })
4557 .unzip();
4558 let buffer_id = buffer.read(cx).remote_id();
4559 let tasks = editor
4560 .tasks
4561 .get(&(buffer_id, buffer_row))
4562 .map(|t| Arc::new(t.to_owned()));
4563 if tasks.is_none() && code_actions.is_none() {
4564 return None;
4565 }
4566
4567 editor.completion_tasks.clear();
4568 editor.discard_inline_completion(false, cx);
4569 let task_context =
4570 tasks
4571 .as_ref()
4572 .zip(editor.project.clone())
4573 .map(|(tasks, project)| {
4574 let position = Point::new(buffer_row, tasks.column);
4575 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4576 let location = Location {
4577 buffer: buffer.clone(),
4578 range: range_start..range_start,
4579 };
4580 // Fill in the environmental variables from the tree-sitter captures
4581 let mut captured_task_variables = TaskVariables::default();
4582 for (capture_name, value) in tasks.extra_variables.clone() {
4583 captured_task_variables.insert(
4584 task::VariableName::Custom(capture_name.into()),
4585 value.clone(),
4586 );
4587 }
4588 project.update(cx, |project, cx| {
4589 project.task_context_for_location(
4590 captured_task_variables,
4591 location,
4592 cx,
4593 )
4594 })
4595 });
4596
4597 Some(cx.spawn(|editor, mut cx| async move {
4598 let task_context = match task_context {
4599 Some(task_context) => task_context.await,
4600 None => None,
4601 };
4602 let resolved_tasks =
4603 tasks.zip(task_context).map(|(tasks, task_context)| {
4604 Arc::new(ResolvedTasks {
4605 templates: tasks
4606 .templates
4607 .iter()
4608 .filter_map(|(kind, template)| {
4609 template
4610 .resolve_task(&kind.to_id_base(), &task_context)
4611 .map(|task| (kind.clone(), task))
4612 })
4613 .collect(),
4614 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4615 multibuffer_point.row,
4616 tasks.column,
4617 )),
4618 })
4619 });
4620 let spawn_straight_away = resolved_tasks
4621 .as_ref()
4622 .map_or(false, |tasks| tasks.templates.len() == 1)
4623 && code_actions
4624 .as_ref()
4625 .map_or(true, |actions| actions.is_empty());
4626 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4627 *editor.context_menu.write() =
4628 Some(ContextMenu::CodeActions(CodeActionsMenu {
4629 buffer,
4630 actions: CodeActionContents {
4631 tasks: resolved_tasks,
4632 actions: code_actions,
4633 },
4634 selected_item: Default::default(),
4635 scroll_handle: UniformListScrollHandle::default(),
4636 deployed_from_indicator,
4637 }));
4638 if spawn_straight_away {
4639 if let Some(task) = editor.confirm_code_action(
4640 &ConfirmCodeAction { item_ix: Some(0) },
4641 cx,
4642 ) {
4643 cx.notify();
4644 return task;
4645 }
4646 }
4647 cx.notify();
4648 Task::ready(Ok(()))
4649 }) {
4650 task.await
4651 } else {
4652 Ok(())
4653 }
4654 }))
4655 } else {
4656 Some(Task::ready(Ok(())))
4657 }
4658 })?;
4659 if let Some(task) = spawned_test_task {
4660 task.await?;
4661 }
4662
4663 Ok::<_, anyhow::Error>(())
4664 })
4665 .detach_and_log_err(cx);
4666 }
4667
4668 pub fn confirm_code_action(
4669 &mut self,
4670 action: &ConfirmCodeAction,
4671 cx: &mut ViewContext<Self>,
4672 ) -> Option<Task<Result<()>>> {
4673 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4674 menu
4675 } else {
4676 return None;
4677 };
4678 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4679 let action = actions_menu.actions.get(action_ix)?;
4680 let title = action.label();
4681 let buffer = actions_menu.buffer;
4682 let workspace = self.workspace()?;
4683
4684 match action {
4685 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4686 workspace.update(cx, |workspace, cx| {
4687 workspace::tasks::schedule_resolved_task(
4688 workspace,
4689 task_source_kind,
4690 resolved_task,
4691 false,
4692 cx,
4693 );
4694
4695 Some(Task::ready(Ok(())))
4696 })
4697 }
4698 CodeActionsItem::CodeAction(action) => {
4699 let apply_code_actions = workspace
4700 .read(cx)
4701 .project()
4702 .clone()
4703 .update(cx, |project, cx| {
4704 project.apply_code_action(buffer, action, true, cx)
4705 });
4706 let workspace = workspace.downgrade();
4707 Some(cx.spawn(|editor, cx| async move {
4708 let project_transaction = apply_code_actions.await?;
4709 Self::open_project_transaction(
4710 &editor,
4711 workspace,
4712 project_transaction,
4713 title,
4714 cx,
4715 )
4716 .await
4717 }))
4718 }
4719 }
4720 }
4721
4722 pub async fn open_project_transaction(
4723 this: &WeakView<Editor>,
4724 workspace: WeakView<Workspace>,
4725 transaction: ProjectTransaction,
4726 title: String,
4727 mut cx: AsyncWindowContext,
4728 ) -> Result<()> {
4729 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4730
4731 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4732 cx.update(|cx| {
4733 entries.sort_unstable_by_key(|(buffer, _)| {
4734 buffer.read(cx).file().map(|f| f.path().clone())
4735 });
4736 })?;
4737
4738 // If the project transaction's edits are all contained within this editor, then
4739 // avoid opening a new editor to display them.
4740
4741 if let Some((buffer, transaction)) = entries.first() {
4742 if entries.len() == 1 {
4743 let excerpt = this.update(&mut cx, |editor, cx| {
4744 editor
4745 .buffer()
4746 .read(cx)
4747 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4748 })?;
4749 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4750 if excerpted_buffer == *buffer {
4751 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4752 let excerpt_range = excerpt_range.to_offset(buffer);
4753 buffer
4754 .edited_ranges_for_transaction::<usize>(transaction)
4755 .all(|range| {
4756 excerpt_range.start <= range.start
4757 && excerpt_range.end >= range.end
4758 })
4759 })?;
4760
4761 if all_edits_within_excerpt {
4762 return Ok(());
4763 }
4764 }
4765 }
4766 }
4767 } else {
4768 return Ok(());
4769 }
4770
4771 let mut ranges_to_highlight = Vec::new();
4772 let excerpt_buffer = cx.new_model(|cx| {
4773 let mut multibuffer =
4774 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4775 for (buffer_handle, transaction) in &entries {
4776 let buffer = buffer_handle.read(cx);
4777 ranges_to_highlight.extend(
4778 multibuffer.push_excerpts_with_context_lines(
4779 buffer_handle.clone(),
4780 buffer
4781 .edited_ranges_for_transaction::<usize>(transaction)
4782 .collect(),
4783 DEFAULT_MULTIBUFFER_CONTEXT,
4784 cx,
4785 ),
4786 );
4787 }
4788 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4789 multibuffer
4790 })?;
4791
4792 workspace.update(&mut cx, |workspace, cx| {
4793 let project = workspace.project().clone();
4794 let editor =
4795 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4796 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4797 editor.update(cx, |editor, cx| {
4798 editor.highlight_background::<Self>(
4799 &ranges_to_highlight,
4800 |theme| theme.editor_highlighted_line_background,
4801 cx,
4802 );
4803 });
4804 })?;
4805
4806 Ok(())
4807 }
4808
4809 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4810 let project = self.project.clone()?;
4811 let buffer = self.buffer.read(cx);
4812 let newest_selection = self.selections.newest_anchor().clone();
4813 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4814 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4815 if start_buffer != end_buffer {
4816 return None;
4817 }
4818
4819 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4820 cx.background_executor()
4821 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4822 .await;
4823
4824 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4825 project.code_actions(&start_buffer, start..end, cx)
4826 }) {
4827 code_actions.await
4828 } else {
4829 Vec::new()
4830 };
4831
4832 this.update(&mut cx, |this, cx| {
4833 this.available_code_actions = if actions.is_empty() {
4834 None
4835 } else {
4836 Some((
4837 Location {
4838 buffer: start_buffer,
4839 range: start..end,
4840 },
4841 actions.into(),
4842 ))
4843 };
4844 cx.notify();
4845 })
4846 .log_err();
4847 }));
4848 None
4849 }
4850
4851 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4852 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4853 self.show_git_blame_inline = false;
4854
4855 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4856 cx.background_executor().timer(delay).await;
4857
4858 this.update(&mut cx, |this, cx| {
4859 this.show_git_blame_inline = true;
4860 cx.notify();
4861 })
4862 .log_err();
4863 }));
4864 }
4865 }
4866
4867 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4868 if self.pending_rename.is_some() {
4869 return None;
4870 }
4871
4872 let project = self.project.clone()?;
4873 let buffer = self.buffer.read(cx);
4874 let newest_selection = self.selections.newest_anchor().clone();
4875 let cursor_position = newest_selection.head();
4876 let (cursor_buffer, cursor_buffer_position) =
4877 buffer.text_anchor_for_position(cursor_position, cx)?;
4878 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4879 if cursor_buffer != tail_buffer {
4880 return None;
4881 }
4882
4883 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4884 cx.background_executor()
4885 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4886 .await;
4887
4888 let highlights = if let Some(highlights) = project
4889 .update(&mut cx, |project, cx| {
4890 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4891 })
4892 .log_err()
4893 {
4894 highlights.await.log_err()
4895 } else {
4896 None
4897 };
4898
4899 if let Some(highlights) = highlights {
4900 this.update(&mut cx, |this, cx| {
4901 if this.pending_rename.is_some() {
4902 return;
4903 }
4904
4905 let buffer_id = cursor_position.buffer_id;
4906 let buffer = this.buffer.read(cx);
4907 if !buffer
4908 .text_anchor_for_position(cursor_position, cx)
4909 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4910 {
4911 return;
4912 }
4913
4914 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4915 let mut write_ranges = Vec::new();
4916 let mut read_ranges = Vec::new();
4917 for highlight in highlights {
4918 for (excerpt_id, excerpt_range) in
4919 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4920 {
4921 let start = highlight
4922 .range
4923 .start
4924 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4925 let end = highlight
4926 .range
4927 .end
4928 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4929 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4930 continue;
4931 }
4932
4933 let range = Anchor {
4934 buffer_id,
4935 excerpt_id,
4936 text_anchor: start,
4937 }..Anchor {
4938 buffer_id,
4939 excerpt_id,
4940 text_anchor: end,
4941 };
4942 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4943 write_ranges.push(range);
4944 } else {
4945 read_ranges.push(range);
4946 }
4947 }
4948 }
4949
4950 this.highlight_background::<DocumentHighlightRead>(
4951 &read_ranges,
4952 |theme| theme.editor_document_highlight_read_background,
4953 cx,
4954 );
4955 this.highlight_background::<DocumentHighlightWrite>(
4956 &write_ranges,
4957 |theme| theme.editor_document_highlight_write_background,
4958 cx,
4959 );
4960 cx.notify();
4961 })
4962 .log_err();
4963 }
4964 }));
4965 None
4966 }
4967
4968 pub fn refresh_inline_completion(
4969 &mut self,
4970 debounce: bool,
4971 user_requested: bool,
4972 cx: &mut ViewContext<Self>,
4973 ) -> Option<()> {
4974 let provider = self.inline_completion_provider()?;
4975 let cursor = self.selections.newest_anchor().head();
4976 let (buffer, cursor_buffer_position) =
4977 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4978 if !user_requested
4979 && self.enable_inline_completions
4980 && !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4981 {
4982 self.discard_inline_completion(false, cx);
4983 return None;
4984 }
4985
4986 self.update_visible_inline_completion(cx);
4987 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4988 Some(())
4989 }
4990
4991 fn cycle_inline_completion(
4992 &mut self,
4993 direction: Direction,
4994 cx: &mut ViewContext<Self>,
4995 ) -> Option<()> {
4996 let provider = self.inline_completion_provider()?;
4997 let cursor = self.selections.newest_anchor().head();
4998 let (buffer, cursor_buffer_position) =
4999 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5000 if !self.enable_inline_completions
5001 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5002 {
5003 return None;
5004 }
5005
5006 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5007 self.update_visible_inline_completion(cx);
5008
5009 Some(())
5010 }
5011
5012 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5013 if !self.has_active_inline_completion(cx) {
5014 self.refresh_inline_completion(false, true, cx);
5015 return;
5016 }
5017
5018 self.update_visible_inline_completion(cx);
5019 }
5020
5021 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5022 self.show_cursor_names(cx);
5023 }
5024
5025 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5026 self.show_cursor_names = true;
5027 cx.notify();
5028 cx.spawn(|this, mut cx| async move {
5029 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5030 this.update(&mut cx, |this, cx| {
5031 this.show_cursor_names = false;
5032 cx.notify()
5033 })
5034 .ok()
5035 })
5036 .detach();
5037 }
5038
5039 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5040 if self.has_active_inline_completion(cx) {
5041 self.cycle_inline_completion(Direction::Next, cx);
5042 } else {
5043 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5044 if is_copilot_disabled {
5045 cx.propagate();
5046 }
5047 }
5048 }
5049
5050 pub fn previous_inline_completion(
5051 &mut self,
5052 _: &PreviousInlineCompletion,
5053 cx: &mut ViewContext<Self>,
5054 ) {
5055 if self.has_active_inline_completion(cx) {
5056 self.cycle_inline_completion(Direction::Prev, cx);
5057 } else {
5058 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5059 if is_copilot_disabled {
5060 cx.propagate();
5061 }
5062 }
5063 }
5064
5065 pub fn accept_inline_completion(
5066 &mut self,
5067 _: &AcceptInlineCompletion,
5068 cx: &mut ViewContext<Self>,
5069 ) {
5070 let Some((completion, delete_range)) = self.take_active_inline_completion(cx) else {
5071 return;
5072 };
5073 if let Some(provider) = self.inline_completion_provider() {
5074 provider.accept(cx);
5075 }
5076
5077 cx.emit(EditorEvent::InputHandled {
5078 utf16_range_to_replace: None,
5079 text: completion.text.to_string().into(),
5080 });
5081
5082 if let Some(range) = delete_range {
5083 self.change_selections(None, cx, |s| s.select_ranges([range]))
5084 }
5085 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5086 self.refresh_inline_completion(true, true, cx);
5087 cx.notify();
5088 }
5089
5090 pub fn accept_partial_inline_completion(
5091 &mut self,
5092 _: &AcceptPartialInlineCompletion,
5093 cx: &mut ViewContext<Self>,
5094 ) {
5095 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5096 if let Some((completion, delete_range)) = self.take_active_inline_completion(cx) {
5097 let mut partial_completion = completion
5098 .text
5099 .chars()
5100 .by_ref()
5101 .take_while(|c| c.is_alphabetic())
5102 .collect::<String>();
5103 if partial_completion.is_empty() {
5104 partial_completion = completion
5105 .text
5106 .chars()
5107 .by_ref()
5108 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5109 .collect::<String>();
5110 }
5111
5112 cx.emit(EditorEvent::InputHandled {
5113 utf16_range_to_replace: None,
5114 text: partial_completion.clone().into(),
5115 });
5116
5117 if let Some(range) = delete_range {
5118 self.change_selections(None, cx, |s| s.select_ranges([range]))
5119 }
5120 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5121
5122 self.refresh_inline_completion(true, true, cx);
5123 cx.notify();
5124 }
5125 }
5126 }
5127
5128 fn discard_inline_completion(
5129 &mut self,
5130 should_report_inline_completion_event: bool,
5131 cx: &mut ViewContext<Self>,
5132 ) -> bool {
5133 if let Some(provider) = self.inline_completion_provider() {
5134 provider.discard(should_report_inline_completion_event, cx);
5135 }
5136
5137 self.take_active_inline_completion(cx).is_some()
5138 }
5139
5140 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5141 if let Some(completion) = self.active_inline_completion.as_ref() {
5142 let buffer = self.buffer.read(cx).read(cx);
5143 completion.0.position.is_valid(&buffer)
5144 } else {
5145 false
5146 }
5147 }
5148
5149 fn take_active_inline_completion(
5150 &mut self,
5151 cx: &mut ViewContext<Self>,
5152 ) -> Option<(Inlay, Option<Range<Anchor>>)> {
5153 let completion = self.active_inline_completion.take()?;
5154 self.display_map.update(cx, |map, cx| {
5155 map.splice_inlays(vec![completion.0.id], Default::default(), cx);
5156 });
5157 let buffer = self.buffer.read(cx).read(cx);
5158
5159 if completion.0.position.is_valid(&buffer) {
5160 Some(completion)
5161 } else {
5162 None
5163 }
5164 }
5165
5166 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5167 let selection = self.selections.newest_anchor();
5168 let cursor = selection.head();
5169
5170 let excerpt_id = cursor.excerpt_id;
5171
5172 if self.context_menu.read().is_none()
5173 && self.completion_tasks.is_empty()
5174 && selection.start == selection.end
5175 {
5176 if let Some(provider) = self.inline_completion_provider() {
5177 if let Some((buffer, cursor_buffer_position)) =
5178 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5179 {
5180 if let Some((text, text_anchor_range)) =
5181 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5182 {
5183 let text = Rope::from(text);
5184 let mut to_remove = Vec::new();
5185 if let Some(completion) = self.active_inline_completion.take() {
5186 to_remove.push(completion.0.id);
5187 }
5188
5189 let completion_inlay =
5190 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
5191
5192 let multibuffer_anchor_range = text_anchor_range.and_then(|range| {
5193 let snapshot = self.buffer.read(cx).snapshot(cx);
5194 Some(
5195 snapshot.anchor_in_excerpt(excerpt_id, range.start)?
5196 ..snapshot.anchor_in_excerpt(excerpt_id, range.end)?,
5197 )
5198 });
5199 self.active_inline_completion =
5200 Some((completion_inlay.clone(), multibuffer_anchor_range));
5201
5202 self.display_map.update(cx, move |map, cx| {
5203 map.splice_inlays(to_remove, vec![completion_inlay], cx)
5204 });
5205 cx.notify();
5206 return;
5207 }
5208 }
5209 }
5210 }
5211
5212 self.discard_inline_completion(false, cx);
5213 }
5214
5215 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5216 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5217 }
5218
5219 fn render_code_actions_indicator(
5220 &self,
5221 _style: &EditorStyle,
5222 row: DisplayRow,
5223 is_active: bool,
5224 cx: &mut ViewContext<Self>,
5225 ) -> Option<IconButton> {
5226 if self.available_code_actions.is_some() {
5227 Some(
5228 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5229 .shape(ui::IconButtonShape::Square)
5230 .icon_size(IconSize::XSmall)
5231 .icon_color(Color::Muted)
5232 .selected(is_active)
5233 .on_click(cx.listener(move |editor, _e, cx| {
5234 editor.focus(cx);
5235 editor.toggle_code_actions(
5236 &ToggleCodeActions {
5237 deployed_from_indicator: Some(row),
5238 },
5239 cx,
5240 );
5241 })),
5242 )
5243 } else {
5244 None
5245 }
5246 }
5247
5248 fn clear_tasks(&mut self) {
5249 self.tasks.clear()
5250 }
5251
5252 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5253 if self.tasks.insert(key, value).is_some() {
5254 // This case should hopefully be rare, but just in case...
5255 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5256 }
5257 }
5258
5259 fn render_run_indicator(
5260 &self,
5261 _style: &EditorStyle,
5262 is_active: bool,
5263 row: DisplayRow,
5264 cx: &mut ViewContext<Self>,
5265 ) -> IconButton {
5266 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5267 .shape(ui::IconButtonShape::Square)
5268 .icon_size(IconSize::XSmall)
5269 .icon_color(Color::Muted)
5270 .selected(is_active)
5271 .on_click(cx.listener(move |editor, _e, cx| {
5272 editor.focus(cx);
5273 editor.toggle_code_actions(
5274 &ToggleCodeActions {
5275 deployed_from_indicator: Some(row),
5276 },
5277 cx,
5278 );
5279 }))
5280 }
5281
5282 fn close_hunk_diff_button(
5283 &self,
5284 hunk: HoveredHunk,
5285 row: DisplayRow,
5286 cx: &mut ViewContext<Self>,
5287 ) -> IconButton {
5288 IconButton::new(
5289 ("close_hunk_diff_indicator", row.0 as usize),
5290 ui::IconName::Close,
5291 )
5292 .shape(ui::IconButtonShape::Square)
5293 .icon_size(IconSize::XSmall)
5294 .icon_color(Color::Muted)
5295 .tooltip(|cx| Tooltip::for_action("Close hunk diff", &ToggleHunkDiff, cx))
5296 .on_click(cx.listener(move |editor, _e, cx| editor.toggle_hovered_hunk(&hunk, cx)))
5297 }
5298
5299 pub fn context_menu_visible(&self) -> bool {
5300 self.context_menu
5301 .read()
5302 .as_ref()
5303 .map_or(false, |menu| menu.visible())
5304 }
5305
5306 fn render_context_menu(
5307 &self,
5308 cursor_position: DisplayPoint,
5309 style: &EditorStyle,
5310 max_height: Pixels,
5311 cx: &mut ViewContext<Editor>,
5312 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5313 self.context_menu.read().as_ref().map(|menu| {
5314 menu.render(
5315 cursor_position,
5316 style,
5317 max_height,
5318 self.workspace.as_ref().map(|(w, _)| w.clone()),
5319 cx,
5320 )
5321 })
5322 }
5323
5324 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5325 cx.notify();
5326 self.completion_tasks.clear();
5327 let context_menu = self.context_menu.write().take();
5328 if context_menu.is_some() {
5329 self.update_visible_inline_completion(cx);
5330 }
5331 context_menu
5332 }
5333
5334 pub fn insert_snippet(
5335 &mut self,
5336 insertion_ranges: &[Range<usize>],
5337 snippet: Snippet,
5338 cx: &mut ViewContext<Self>,
5339 ) -> Result<()> {
5340 struct Tabstop<T> {
5341 is_end_tabstop: bool,
5342 ranges: Vec<Range<T>>,
5343 }
5344
5345 let tabstops = self.buffer.update(cx, |buffer, cx| {
5346 let snippet_text: Arc<str> = snippet.text.clone().into();
5347 buffer.edit(
5348 insertion_ranges
5349 .iter()
5350 .cloned()
5351 .map(|range| (range, snippet_text.clone())),
5352 Some(AutoindentMode::EachLine),
5353 cx,
5354 );
5355
5356 let snapshot = &*buffer.read(cx);
5357 let snippet = &snippet;
5358 snippet
5359 .tabstops
5360 .iter()
5361 .map(|tabstop| {
5362 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5363 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5364 });
5365 let mut tabstop_ranges = tabstop
5366 .iter()
5367 .flat_map(|tabstop_range| {
5368 let mut delta = 0_isize;
5369 insertion_ranges.iter().map(move |insertion_range| {
5370 let insertion_start = insertion_range.start as isize + delta;
5371 delta +=
5372 snippet.text.len() as isize - insertion_range.len() as isize;
5373
5374 let start = ((insertion_start + tabstop_range.start) as usize)
5375 .min(snapshot.len());
5376 let end = ((insertion_start + tabstop_range.end) as usize)
5377 .min(snapshot.len());
5378 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5379 })
5380 })
5381 .collect::<Vec<_>>();
5382 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5383
5384 Tabstop {
5385 is_end_tabstop,
5386 ranges: tabstop_ranges,
5387 }
5388 })
5389 .collect::<Vec<_>>()
5390 });
5391 if let Some(tabstop) = tabstops.first() {
5392 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5393 s.select_ranges(tabstop.ranges.iter().cloned());
5394 });
5395
5396 // If we're already at the last tabstop and it's at the end of the snippet,
5397 // we're done, we don't need to keep the state around.
5398 if !tabstop.is_end_tabstop {
5399 let ranges = tabstops
5400 .into_iter()
5401 .map(|tabstop| tabstop.ranges)
5402 .collect::<Vec<_>>();
5403 self.snippet_stack.push(SnippetState {
5404 active_index: 0,
5405 ranges,
5406 });
5407 }
5408
5409 // Check whether the just-entered snippet ends with an auto-closable bracket.
5410 if self.autoclose_regions.is_empty() {
5411 let snapshot = self.buffer.read(cx).snapshot(cx);
5412 for selection in &mut self.selections.all::<Point>(cx) {
5413 let selection_head = selection.head();
5414 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5415 continue;
5416 };
5417
5418 let mut bracket_pair = None;
5419 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5420 let prev_chars = snapshot
5421 .reversed_chars_at(selection_head)
5422 .collect::<String>();
5423 for (pair, enabled) in scope.brackets() {
5424 if enabled
5425 && pair.close
5426 && prev_chars.starts_with(pair.start.as_str())
5427 && next_chars.starts_with(pair.end.as_str())
5428 {
5429 bracket_pair = Some(pair.clone());
5430 break;
5431 }
5432 }
5433 if let Some(pair) = bracket_pair {
5434 let start = snapshot.anchor_after(selection_head);
5435 let end = snapshot.anchor_after(selection_head);
5436 self.autoclose_regions.push(AutocloseRegion {
5437 selection_id: selection.id,
5438 range: start..end,
5439 pair,
5440 });
5441 }
5442 }
5443 }
5444 }
5445 Ok(())
5446 }
5447
5448 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5449 self.move_to_snippet_tabstop(Bias::Right, cx)
5450 }
5451
5452 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5453 self.move_to_snippet_tabstop(Bias::Left, cx)
5454 }
5455
5456 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5457 if let Some(mut snippet) = self.snippet_stack.pop() {
5458 match bias {
5459 Bias::Left => {
5460 if snippet.active_index > 0 {
5461 snippet.active_index -= 1;
5462 } else {
5463 self.snippet_stack.push(snippet);
5464 return false;
5465 }
5466 }
5467 Bias::Right => {
5468 if snippet.active_index + 1 < snippet.ranges.len() {
5469 snippet.active_index += 1;
5470 } else {
5471 self.snippet_stack.push(snippet);
5472 return false;
5473 }
5474 }
5475 }
5476 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5477 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5478 s.select_anchor_ranges(current_ranges.iter().cloned())
5479 });
5480 // If snippet state is not at the last tabstop, push it back on the stack
5481 if snippet.active_index + 1 < snippet.ranges.len() {
5482 self.snippet_stack.push(snippet);
5483 }
5484 return true;
5485 }
5486 }
5487
5488 false
5489 }
5490
5491 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5492 self.transact(cx, |this, cx| {
5493 this.select_all(&SelectAll, cx);
5494 this.insert("", cx);
5495 });
5496 }
5497
5498 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5499 self.transact(cx, |this, cx| {
5500 this.select_autoclose_pair(cx);
5501 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5502 if !this.linked_edit_ranges.is_empty() {
5503 let selections = this.selections.all::<MultiBufferPoint>(cx);
5504 let snapshot = this.buffer.read(cx).snapshot(cx);
5505
5506 for selection in selections.iter() {
5507 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5508 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5509 if selection_start.buffer_id != selection_end.buffer_id {
5510 continue;
5511 }
5512 if let Some(ranges) =
5513 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5514 {
5515 for (buffer, entries) in ranges {
5516 linked_ranges.entry(buffer).or_default().extend(entries);
5517 }
5518 }
5519 }
5520 }
5521
5522 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5523 if !this.selections.line_mode {
5524 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5525 for selection in &mut selections {
5526 if selection.is_empty() {
5527 let old_head = selection.head();
5528 let mut new_head =
5529 movement::left(&display_map, old_head.to_display_point(&display_map))
5530 .to_point(&display_map);
5531 if let Some((buffer, line_buffer_range)) = display_map
5532 .buffer_snapshot
5533 .buffer_line_for_row(MultiBufferRow(old_head.row))
5534 {
5535 let indent_size =
5536 buffer.indent_size_for_line(line_buffer_range.start.row);
5537 let indent_len = match indent_size.kind {
5538 IndentKind::Space => {
5539 buffer.settings_at(line_buffer_range.start, cx).tab_size
5540 }
5541 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5542 };
5543 if old_head.column <= indent_size.len && old_head.column > 0 {
5544 let indent_len = indent_len.get();
5545 new_head = cmp::min(
5546 new_head,
5547 MultiBufferPoint::new(
5548 old_head.row,
5549 ((old_head.column - 1) / indent_len) * indent_len,
5550 ),
5551 );
5552 }
5553 }
5554
5555 selection.set_head(new_head, SelectionGoal::None);
5556 }
5557 }
5558 }
5559
5560 this.signature_help_state.set_backspace_pressed(true);
5561 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5562 this.insert("", cx);
5563 let empty_str: Arc<str> = Arc::from("");
5564 for (buffer, edits) in linked_ranges {
5565 let snapshot = buffer.read(cx).snapshot();
5566 use text::ToPoint as TP;
5567
5568 let edits = edits
5569 .into_iter()
5570 .map(|range| {
5571 let end_point = TP::to_point(&range.end, &snapshot);
5572 let mut start_point = TP::to_point(&range.start, &snapshot);
5573
5574 if end_point == start_point {
5575 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5576 .saturating_sub(1);
5577 start_point = TP::to_point(&offset, &snapshot);
5578 };
5579
5580 (start_point..end_point, empty_str.clone())
5581 })
5582 .sorted_by_key(|(range, _)| range.start)
5583 .collect::<Vec<_>>();
5584 buffer.update(cx, |this, cx| {
5585 this.edit(edits, None, cx);
5586 })
5587 }
5588 this.refresh_inline_completion(true, false, cx);
5589 linked_editing_ranges::refresh_linked_ranges(this, cx);
5590 });
5591 }
5592
5593 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5594 self.transact(cx, |this, cx| {
5595 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5596 let line_mode = s.line_mode;
5597 s.move_with(|map, selection| {
5598 if selection.is_empty() && !line_mode {
5599 let cursor = movement::right(map, selection.head());
5600 selection.end = cursor;
5601 selection.reversed = true;
5602 selection.goal = SelectionGoal::None;
5603 }
5604 })
5605 });
5606 this.insert("", cx);
5607 this.refresh_inline_completion(true, false, cx);
5608 });
5609 }
5610
5611 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5612 if self.move_to_prev_snippet_tabstop(cx) {
5613 return;
5614 }
5615
5616 self.outdent(&Outdent, cx);
5617 }
5618
5619 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5620 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5621 return;
5622 }
5623
5624 let mut selections = self.selections.all_adjusted(cx);
5625 let buffer = self.buffer.read(cx);
5626 let snapshot = buffer.snapshot(cx);
5627 let rows_iter = selections.iter().map(|s| s.head().row);
5628 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5629
5630 let mut edits = Vec::new();
5631 let mut prev_edited_row = 0;
5632 let mut row_delta = 0;
5633 for selection in &mut selections {
5634 if selection.start.row != prev_edited_row {
5635 row_delta = 0;
5636 }
5637 prev_edited_row = selection.end.row;
5638
5639 // If the selection is non-empty, then increase the indentation of the selected lines.
5640 if !selection.is_empty() {
5641 row_delta =
5642 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5643 continue;
5644 }
5645
5646 // If the selection is empty and the cursor is in the leading whitespace before the
5647 // suggested indentation, then auto-indent the line.
5648 let cursor = selection.head();
5649 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5650 if let Some(suggested_indent) =
5651 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5652 {
5653 if cursor.column < suggested_indent.len
5654 && cursor.column <= current_indent.len
5655 && current_indent.len <= suggested_indent.len
5656 {
5657 selection.start = Point::new(cursor.row, suggested_indent.len);
5658 selection.end = selection.start;
5659 if row_delta == 0 {
5660 edits.extend(Buffer::edit_for_indent_size_adjustment(
5661 cursor.row,
5662 current_indent,
5663 suggested_indent,
5664 ));
5665 row_delta = suggested_indent.len - current_indent.len;
5666 }
5667 continue;
5668 }
5669 }
5670
5671 // Otherwise, insert a hard or soft tab.
5672 let settings = buffer.settings_at(cursor, cx);
5673 let tab_size = if settings.hard_tabs {
5674 IndentSize::tab()
5675 } else {
5676 let tab_size = settings.tab_size.get();
5677 let char_column = snapshot
5678 .text_for_range(Point::new(cursor.row, 0)..cursor)
5679 .flat_map(str::chars)
5680 .count()
5681 + row_delta as usize;
5682 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5683 IndentSize::spaces(chars_to_next_tab_stop)
5684 };
5685 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5686 selection.end = selection.start;
5687 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5688 row_delta += tab_size.len;
5689 }
5690
5691 self.transact(cx, |this, cx| {
5692 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5693 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5694 this.refresh_inline_completion(true, false, cx);
5695 });
5696 }
5697
5698 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5699 if self.read_only(cx) {
5700 return;
5701 }
5702 let mut selections = self.selections.all::<Point>(cx);
5703 let mut prev_edited_row = 0;
5704 let mut row_delta = 0;
5705 let mut edits = Vec::new();
5706 let buffer = self.buffer.read(cx);
5707 let snapshot = buffer.snapshot(cx);
5708 for selection in &mut selections {
5709 if selection.start.row != prev_edited_row {
5710 row_delta = 0;
5711 }
5712 prev_edited_row = selection.end.row;
5713
5714 row_delta =
5715 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5716 }
5717
5718 self.transact(cx, |this, cx| {
5719 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5720 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5721 });
5722 }
5723
5724 fn indent_selection(
5725 buffer: &MultiBuffer,
5726 snapshot: &MultiBufferSnapshot,
5727 selection: &mut Selection<Point>,
5728 edits: &mut Vec<(Range<Point>, String)>,
5729 delta_for_start_row: u32,
5730 cx: &AppContext,
5731 ) -> u32 {
5732 let settings = buffer.settings_at(selection.start, cx);
5733 let tab_size = settings.tab_size.get();
5734 let indent_kind = if settings.hard_tabs {
5735 IndentKind::Tab
5736 } else {
5737 IndentKind::Space
5738 };
5739 let mut start_row = selection.start.row;
5740 let mut end_row = selection.end.row + 1;
5741
5742 // If a selection ends at the beginning of a line, don't indent
5743 // that last line.
5744 if selection.end.column == 0 && selection.end.row > selection.start.row {
5745 end_row -= 1;
5746 }
5747
5748 // Avoid re-indenting a row that has already been indented by a
5749 // previous selection, but still update this selection's column
5750 // to reflect that indentation.
5751 if delta_for_start_row > 0 {
5752 start_row += 1;
5753 selection.start.column += delta_for_start_row;
5754 if selection.end.row == selection.start.row {
5755 selection.end.column += delta_for_start_row;
5756 }
5757 }
5758
5759 let mut delta_for_end_row = 0;
5760 let has_multiple_rows = start_row + 1 != end_row;
5761 for row in start_row..end_row {
5762 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5763 let indent_delta = match (current_indent.kind, indent_kind) {
5764 (IndentKind::Space, IndentKind::Space) => {
5765 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5766 IndentSize::spaces(columns_to_next_tab_stop)
5767 }
5768 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5769 (_, IndentKind::Tab) => IndentSize::tab(),
5770 };
5771
5772 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5773 0
5774 } else {
5775 selection.start.column
5776 };
5777 let row_start = Point::new(row, start);
5778 edits.push((
5779 row_start..row_start,
5780 indent_delta.chars().collect::<String>(),
5781 ));
5782
5783 // Update this selection's endpoints to reflect the indentation.
5784 if row == selection.start.row {
5785 selection.start.column += indent_delta.len;
5786 }
5787 if row == selection.end.row {
5788 selection.end.column += indent_delta.len;
5789 delta_for_end_row = indent_delta.len;
5790 }
5791 }
5792
5793 if selection.start.row == selection.end.row {
5794 delta_for_start_row + delta_for_end_row
5795 } else {
5796 delta_for_end_row
5797 }
5798 }
5799
5800 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5801 if self.read_only(cx) {
5802 return;
5803 }
5804 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5805 let selections = self.selections.all::<Point>(cx);
5806 let mut deletion_ranges = Vec::new();
5807 let mut last_outdent = None;
5808 {
5809 let buffer = self.buffer.read(cx);
5810 let snapshot = buffer.snapshot(cx);
5811 for selection in &selections {
5812 let settings = buffer.settings_at(selection.start, cx);
5813 let tab_size = settings.tab_size.get();
5814 let mut rows = selection.spanned_rows(false, &display_map);
5815
5816 // Avoid re-outdenting a row that has already been outdented by a
5817 // previous selection.
5818 if let Some(last_row) = last_outdent {
5819 if last_row == rows.start {
5820 rows.start = rows.start.next_row();
5821 }
5822 }
5823 let has_multiple_rows = rows.len() > 1;
5824 for row in rows.iter_rows() {
5825 let indent_size = snapshot.indent_size_for_line(row);
5826 if indent_size.len > 0 {
5827 let deletion_len = match indent_size.kind {
5828 IndentKind::Space => {
5829 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5830 if columns_to_prev_tab_stop == 0 {
5831 tab_size
5832 } else {
5833 columns_to_prev_tab_stop
5834 }
5835 }
5836 IndentKind::Tab => 1,
5837 };
5838 let start = if has_multiple_rows
5839 || deletion_len > selection.start.column
5840 || indent_size.len < selection.start.column
5841 {
5842 0
5843 } else {
5844 selection.start.column - deletion_len
5845 };
5846 deletion_ranges.push(
5847 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5848 );
5849 last_outdent = Some(row);
5850 }
5851 }
5852 }
5853 }
5854
5855 self.transact(cx, |this, cx| {
5856 this.buffer.update(cx, |buffer, cx| {
5857 let empty_str: Arc<str> = Arc::default();
5858 buffer.edit(
5859 deletion_ranges
5860 .into_iter()
5861 .map(|range| (range, empty_str.clone())),
5862 None,
5863 cx,
5864 );
5865 });
5866 let selections = this.selections.all::<usize>(cx);
5867 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5868 });
5869 }
5870
5871 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5872 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5873 let selections = self.selections.all::<Point>(cx);
5874
5875 let mut new_cursors = Vec::new();
5876 let mut edit_ranges = Vec::new();
5877 let mut selections = selections.iter().peekable();
5878 while let Some(selection) = selections.next() {
5879 let mut rows = selection.spanned_rows(false, &display_map);
5880 let goal_display_column = selection.head().to_display_point(&display_map).column();
5881
5882 // Accumulate contiguous regions of rows that we want to delete.
5883 while let Some(next_selection) = selections.peek() {
5884 let next_rows = next_selection.spanned_rows(false, &display_map);
5885 if next_rows.start <= rows.end {
5886 rows.end = next_rows.end;
5887 selections.next().unwrap();
5888 } else {
5889 break;
5890 }
5891 }
5892
5893 let buffer = &display_map.buffer_snapshot;
5894 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5895 let edit_end;
5896 let cursor_buffer_row;
5897 if buffer.max_point().row >= rows.end.0 {
5898 // If there's a line after the range, delete the \n from the end of the row range
5899 // and position the cursor on the next line.
5900 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5901 cursor_buffer_row = rows.end;
5902 } else {
5903 // If there isn't a line after the range, delete the \n from the line before the
5904 // start of the row range and position the cursor there.
5905 edit_start = edit_start.saturating_sub(1);
5906 edit_end = buffer.len();
5907 cursor_buffer_row = rows.start.previous_row();
5908 }
5909
5910 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5911 *cursor.column_mut() =
5912 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5913
5914 new_cursors.push((
5915 selection.id,
5916 buffer.anchor_after(cursor.to_point(&display_map)),
5917 ));
5918 edit_ranges.push(edit_start..edit_end);
5919 }
5920
5921 self.transact(cx, |this, cx| {
5922 let buffer = this.buffer.update(cx, |buffer, cx| {
5923 let empty_str: Arc<str> = Arc::default();
5924 buffer.edit(
5925 edit_ranges
5926 .into_iter()
5927 .map(|range| (range, empty_str.clone())),
5928 None,
5929 cx,
5930 );
5931 buffer.snapshot(cx)
5932 });
5933 let new_selections = new_cursors
5934 .into_iter()
5935 .map(|(id, cursor)| {
5936 let cursor = cursor.to_point(&buffer);
5937 Selection {
5938 id,
5939 start: cursor,
5940 end: cursor,
5941 reversed: false,
5942 goal: SelectionGoal::None,
5943 }
5944 })
5945 .collect();
5946
5947 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5948 s.select(new_selections);
5949 });
5950 });
5951 }
5952
5953 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5954 if self.read_only(cx) {
5955 return;
5956 }
5957 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5958 for selection in self.selections.all::<Point>(cx) {
5959 let start = MultiBufferRow(selection.start.row);
5960 let end = if selection.start.row == selection.end.row {
5961 MultiBufferRow(selection.start.row + 1)
5962 } else {
5963 MultiBufferRow(selection.end.row)
5964 };
5965
5966 if let Some(last_row_range) = row_ranges.last_mut() {
5967 if start <= last_row_range.end {
5968 last_row_range.end = end;
5969 continue;
5970 }
5971 }
5972 row_ranges.push(start..end);
5973 }
5974
5975 let snapshot = self.buffer.read(cx).snapshot(cx);
5976 let mut cursor_positions = Vec::new();
5977 for row_range in &row_ranges {
5978 let anchor = snapshot.anchor_before(Point::new(
5979 row_range.end.previous_row().0,
5980 snapshot.line_len(row_range.end.previous_row()),
5981 ));
5982 cursor_positions.push(anchor..anchor);
5983 }
5984
5985 self.transact(cx, |this, cx| {
5986 for row_range in row_ranges.into_iter().rev() {
5987 for row in row_range.iter_rows().rev() {
5988 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5989 let next_line_row = row.next_row();
5990 let indent = snapshot.indent_size_for_line(next_line_row);
5991 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5992
5993 let replace = if snapshot.line_len(next_line_row) > indent.len {
5994 " "
5995 } else {
5996 ""
5997 };
5998
5999 this.buffer.update(cx, |buffer, cx| {
6000 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6001 });
6002 }
6003 }
6004
6005 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6006 s.select_anchor_ranges(cursor_positions)
6007 });
6008 });
6009 }
6010
6011 pub fn sort_lines_case_sensitive(
6012 &mut self,
6013 _: &SortLinesCaseSensitive,
6014 cx: &mut ViewContext<Self>,
6015 ) {
6016 self.manipulate_lines(cx, |lines| lines.sort())
6017 }
6018
6019 pub fn sort_lines_case_insensitive(
6020 &mut self,
6021 _: &SortLinesCaseInsensitive,
6022 cx: &mut ViewContext<Self>,
6023 ) {
6024 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6025 }
6026
6027 pub fn unique_lines_case_insensitive(
6028 &mut self,
6029 _: &UniqueLinesCaseInsensitive,
6030 cx: &mut ViewContext<Self>,
6031 ) {
6032 self.manipulate_lines(cx, |lines| {
6033 let mut seen = HashSet::default();
6034 lines.retain(|line| seen.insert(line.to_lowercase()));
6035 })
6036 }
6037
6038 pub fn unique_lines_case_sensitive(
6039 &mut self,
6040 _: &UniqueLinesCaseSensitive,
6041 cx: &mut ViewContext<Self>,
6042 ) {
6043 self.manipulate_lines(cx, |lines| {
6044 let mut seen = HashSet::default();
6045 lines.retain(|line| seen.insert(*line));
6046 })
6047 }
6048
6049 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6050 let mut revert_changes = HashMap::default();
6051 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6052 for hunk in hunks_for_rows(
6053 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6054 &multi_buffer_snapshot,
6055 ) {
6056 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6057 }
6058 if !revert_changes.is_empty() {
6059 self.transact(cx, |editor, cx| {
6060 editor.revert(revert_changes, cx);
6061 });
6062 }
6063 }
6064
6065 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6066 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6067 if !revert_changes.is_empty() {
6068 self.transact(cx, |editor, cx| {
6069 editor.revert(revert_changes, cx);
6070 });
6071 }
6072 }
6073
6074 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6075 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6076 let project_path = buffer.read(cx).project_path(cx)?;
6077 let project = self.project.as_ref()?.read(cx);
6078 let entry = project.entry_for_path(&project_path, cx)?;
6079 let abs_path = project.absolute_path(&project_path, cx)?;
6080 let parent = if entry.is_symlink {
6081 abs_path.canonicalize().ok()?
6082 } else {
6083 abs_path
6084 }
6085 .parent()?
6086 .to_path_buf();
6087 Some(parent)
6088 }) {
6089 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6090 }
6091 }
6092
6093 fn gather_revert_changes(
6094 &mut self,
6095 selections: &[Selection<Anchor>],
6096 cx: &mut ViewContext<'_, Editor>,
6097 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6098 let mut revert_changes = HashMap::default();
6099 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6100 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6101 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6102 }
6103 revert_changes
6104 }
6105
6106 pub fn prepare_revert_change(
6107 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6108 multi_buffer: &Model<MultiBuffer>,
6109 hunk: &DiffHunk<MultiBufferRow>,
6110 cx: &AppContext,
6111 ) -> Option<()> {
6112 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6113 let buffer = buffer.read(cx);
6114 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6115 let buffer_snapshot = buffer.snapshot();
6116 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6117 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6118 probe
6119 .0
6120 .start
6121 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6122 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6123 }) {
6124 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6125 Some(())
6126 } else {
6127 None
6128 }
6129 }
6130
6131 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6132 self.manipulate_lines(cx, |lines| lines.reverse())
6133 }
6134
6135 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6136 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6137 }
6138
6139 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6140 where
6141 Fn: FnMut(&mut Vec<&str>),
6142 {
6143 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6144 let buffer = self.buffer.read(cx).snapshot(cx);
6145
6146 let mut edits = Vec::new();
6147
6148 let selections = self.selections.all::<Point>(cx);
6149 let mut selections = selections.iter().peekable();
6150 let mut contiguous_row_selections = Vec::new();
6151 let mut new_selections = Vec::new();
6152 let mut added_lines = 0;
6153 let mut removed_lines = 0;
6154
6155 while let Some(selection) = selections.next() {
6156 let (start_row, end_row) = consume_contiguous_rows(
6157 &mut contiguous_row_selections,
6158 selection,
6159 &display_map,
6160 &mut selections,
6161 );
6162
6163 let start_point = Point::new(start_row.0, 0);
6164 let end_point = Point::new(
6165 end_row.previous_row().0,
6166 buffer.line_len(end_row.previous_row()),
6167 );
6168 let text = buffer
6169 .text_for_range(start_point..end_point)
6170 .collect::<String>();
6171
6172 let mut lines = text.split('\n').collect_vec();
6173
6174 let lines_before = lines.len();
6175 callback(&mut lines);
6176 let lines_after = lines.len();
6177
6178 edits.push((start_point..end_point, lines.join("\n")));
6179
6180 // Selections must change based on added and removed line count
6181 let start_row =
6182 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6183 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6184 new_selections.push(Selection {
6185 id: selection.id,
6186 start: start_row,
6187 end: end_row,
6188 goal: SelectionGoal::None,
6189 reversed: selection.reversed,
6190 });
6191
6192 if lines_after > lines_before {
6193 added_lines += lines_after - lines_before;
6194 } else if lines_before > lines_after {
6195 removed_lines += lines_before - lines_after;
6196 }
6197 }
6198
6199 self.transact(cx, |this, cx| {
6200 let buffer = this.buffer.update(cx, |buffer, cx| {
6201 buffer.edit(edits, None, cx);
6202 buffer.snapshot(cx)
6203 });
6204
6205 // Recalculate offsets on newly edited buffer
6206 let new_selections = new_selections
6207 .iter()
6208 .map(|s| {
6209 let start_point = Point::new(s.start.0, 0);
6210 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6211 Selection {
6212 id: s.id,
6213 start: buffer.point_to_offset(start_point),
6214 end: buffer.point_to_offset(end_point),
6215 goal: s.goal,
6216 reversed: s.reversed,
6217 }
6218 })
6219 .collect();
6220
6221 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6222 s.select(new_selections);
6223 });
6224
6225 this.request_autoscroll(Autoscroll::fit(), cx);
6226 });
6227 }
6228
6229 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6230 self.manipulate_text(cx, |text| text.to_uppercase())
6231 }
6232
6233 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6234 self.manipulate_text(cx, |text| text.to_lowercase())
6235 }
6236
6237 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6238 self.manipulate_text(cx, |text| {
6239 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6240 // https://github.com/rutrum/convert-case/issues/16
6241 text.split('\n')
6242 .map(|line| line.to_case(Case::Title))
6243 .join("\n")
6244 })
6245 }
6246
6247 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6248 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6249 }
6250
6251 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6252 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6253 }
6254
6255 pub fn convert_to_upper_camel_case(
6256 &mut self,
6257 _: &ConvertToUpperCamelCase,
6258 cx: &mut ViewContext<Self>,
6259 ) {
6260 self.manipulate_text(cx, |text| {
6261 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6262 // https://github.com/rutrum/convert-case/issues/16
6263 text.split('\n')
6264 .map(|line| line.to_case(Case::UpperCamel))
6265 .join("\n")
6266 })
6267 }
6268
6269 pub fn convert_to_lower_camel_case(
6270 &mut self,
6271 _: &ConvertToLowerCamelCase,
6272 cx: &mut ViewContext<Self>,
6273 ) {
6274 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6275 }
6276
6277 pub fn convert_to_opposite_case(
6278 &mut self,
6279 _: &ConvertToOppositeCase,
6280 cx: &mut ViewContext<Self>,
6281 ) {
6282 self.manipulate_text(cx, |text| {
6283 text.chars()
6284 .fold(String::with_capacity(text.len()), |mut t, c| {
6285 if c.is_uppercase() {
6286 t.extend(c.to_lowercase());
6287 } else {
6288 t.extend(c.to_uppercase());
6289 }
6290 t
6291 })
6292 })
6293 }
6294
6295 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6296 where
6297 Fn: FnMut(&str) -> String,
6298 {
6299 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6300 let buffer = self.buffer.read(cx).snapshot(cx);
6301
6302 let mut new_selections = Vec::new();
6303 let mut edits = Vec::new();
6304 let mut selection_adjustment = 0i32;
6305
6306 for selection in self.selections.all::<usize>(cx) {
6307 let selection_is_empty = selection.is_empty();
6308
6309 let (start, end) = if selection_is_empty {
6310 let word_range = movement::surrounding_word(
6311 &display_map,
6312 selection.start.to_display_point(&display_map),
6313 );
6314 let start = word_range.start.to_offset(&display_map, Bias::Left);
6315 let end = word_range.end.to_offset(&display_map, Bias::Left);
6316 (start, end)
6317 } else {
6318 (selection.start, selection.end)
6319 };
6320
6321 let text = buffer.text_for_range(start..end).collect::<String>();
6322 let old_length = text.len() as i32;
6323 let text = callback(&text);
6324
6325 new_selections.push(Selection {
6326 start: (start as i32 - selection_adjustment) as usize,
6327 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6328 goal: SelectionGoal::None,
6329 ..selection
6330 });
6331
6332 selection_adjustment += old_length - text.len() as i32;
6333
6334 edits.push((start..end, text));
6335 }
6336
6337 self.transact(cx, |this, cx| {
6338 this.buffer.update(cx, |buffer, cx| {
6339 buffer.edit(edits, None, cx);
6340 });
6341
6342 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6343 s.select(new_selections);
6344 });
6345
6346 this.request_autoscroll(Autoscroll::fit(), cx);
6347 });
6348 }
6349
6350 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6351 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6352 let buffer = &display_map.buffer_snapshot;
6353 let selections = self.selections.all::<Point>(cx);
6354
6355 let mut edits = Vec::new();
6356 let mut selections_iter = selections.iter().peekable();
6357 while let Some(selection) = selections_iter.next() {
6358 // Avoid duplicating the same lines twice.
6359 let mut rows = selection.spanned_rows(false, &display_map);
6360
6361 while let Some(next_selection) = selections_iter.peek() {
6362 let next_rows = next_selection.spanned_rows(false, &display_map);
6363 if next_rows.start < rows.end {
6364 rows.end = next_rows.end;
6365 selections_iter.next().unwrap();
6366 } else {
6367 break;
6368 }
6369 }
6370
6371 // Copy the text from the selected row region and splice it either at the start
6372 // or end of the region.
6373 let start = Point::new(rows.start.0, 0);
6374 let end = Point::new(
6375 rows.end.previous_row().0,
6376 buffer.line_len(rows.end.previous_row()),
6377 );
6378 let text = buffer
6379 .text_for_range(start..end)
6380 .chain(Some("\n"))
6381 .collect::<String>();
6382 let insert_location = if upwards {
6383 Point::new(rows.end.0, 0)
6384 } else {
6385 start
6386 };
6387 edits.push((insert_location..insert_location, text));
6388 }
6389
6390 self.transact(cx, |this, cx| {
6391 this.buffer.update(cx, |buffer, cx| {
6392 buffer.edit(edits, None, cx);
6393 });
6394
6395 this.request_autoscroll(Autoscroll::fit(), cx);
6396 });
6397 }
6398
6399 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6400 self.duplicate_line(true, cx);
6401 }
6402
6403 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6404 self.duplicate_line(false, cx);
6405 }
6406
6407 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6408 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6409 let buffer = self.buffer.read(cx).snapshot(cx);
6410
6411 let mut edits = Vec::new();
6412 let mut unfold_ranges = Vec::new();
6413 let mut refold_ranges = Vec::new();
6414
6415 let selections = self.selections.all::<Point>(cx);
6416 let mut selections = selections.iter().peekable();
6417 let mut contiguous_row_selections = Vec::new();
6418 let mut new_selections = Vec::new();
6419
6420 while let Some(selection) = selections.next() {
6421 // Find all the selections that span a contiguous row range
6422 let (start_row, end_row) = consume_contiguous_rows(
6423 &mut contiguous_row_selections,
6424 selection,
6425 &display_map,
6426 &mut selections,
6427 );
6428
6429 // Move the text spanned by the row range to be before the line preceding the row range
6430 if start_row.0 > 0 {
6431 let range_to_move = Point::new(
6432 start_row.previous_row().0,
6433 buffer.line_len(start_row.previous_row()),
6434 )
6435 ..Point::new(
6436 end_row.previous_row().0,
6437 buffer.line_len(end_row.previous_row()),
6438 );
6439 let insertion_point = display_map
6440 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6441 .0;
6442
6443 // Don't move lines across excerpts
6444 if buffer
6445 .excerpt_boundaries_in_range((
6446 Bound::Excluded(insertion_point),
6447 Bound::Included(range_to_move.end),
6448 ))
6449 .next()
6450 .is_none()
6451 {
6452 let text = buffer
6453 .text_for_range(range_to_move.clone())
6454 .flat_map(|s| s.chars())
6455 .skip(1)
6456 .chain(['\n'])
6457 .collect::<String>();
6458
6459 edits.push((
6460 buffer.anchor_after(range_to_move.start)
6461 ..buffer.anchor_before(range_to_move.end),
6462 String::new(),
6463 ));
6464 let insertion_anchor = buffer.anchor_after(insertion_point);
6465 edits.push((insertion_anchor..insertion_anchor, text));
6466
6467 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6468
6469 // Move selections up
6470 new_selections.extend(contiguous_row_selections.drain(..).map(
6471 |mut selection| {
6472 selection.start.row -= row_delta;
6473 selection.end.row -= row_delta;
6474 selection
6475 },
6476 ));
6477
6478 // Move folds up
6479 unfold_ranges.push(range_to_move.clone());
6480 for fold in display_map.folds_in_range(
6481 buffer.anchor_before(range_to_move.start)
6482 ..buffer.anchor_after(range_to_move.end),
6483 ) {
6484 let mut start = fold.range.start.to_point(&buffer);
6485 let mut end = fold.range.end.to_point(&buffer);
6486 start.row -= row_delta;
6487 end.row -= row_delta;
6488 refold_ranges.push((start..end, fold.placeholder.clone()));
6489 }
6490 }
6491 }
6492
6493 // If we didn't move line(s), preserve the existing selections
6494 new_selections.append(&mut contiguous_row_selections);
6495 }
6496
6497 self.transact(cx, |this, cx| {
6498 this.unfold_ranges(unfold_ranges, true, true, cx);
6499 this.buffer.update(cx, |buffer, cx| {
6500 for (range, text) in edits {
6501 buffer.edit([(range, text)], None, cx);
6502 }
6503 });
6504 this.fold_ranges(refold_ranges, true, cx);
6505 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6506 s.select(new_selections);
6507 })
6508 });
6509 }
6510
6511 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6512 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6513 let buffer = self.buffer.read(cx).snapshot(cx);
6514
6515 let mut edits = Vec::new();
6516 let mut unfold_ranges = Vec::new();
6517 let mut refold_ranges = Vec::new();
6518
6519 let selections = self.selections.all::<Point>(cx);
6520 let mut selections = selections.iter().peekable();
6521 let mut contiguous_row_selections = Vec::new();
6522 let mut new_selections = Vec::new();
6523
6524 while let Some(selection) = selections.next() {
6525 // Find all the selections that span a contiguous row range
6526 let (start_row, end_row) = consume_contiguous_rows(
6527 &mut contiguous_row_selections,
6528 selection,
6529 &display_map,
6530 &mut selections,
6531 );
6532
6533 // Move the text spanned by the row range to be after the last line of the row range
6534 if end_row.0 <= buffer.max_point().row {
6535 let range_to_move =
6536 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6537 let insertion_point = display_map
6538 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6539 .0;
6540
6541 // Don't move lines across excerpt boundaries
6542 if buffer
6543 .excerpt_boundaries_in_range((
6544 Bound::Excluded(range_to_move.start),
6545 Bound::Included(insertion_point),
6546 ))
6547 .next()
6548 .is_none()
6549 {
6550 let mut text = String::from("\n");
6551 text.extend(buffer.text_for_range(range_to_move.clone()));
6552 text.pop(); // Drop trailing newline
6553 edits.push((
6554 buffer.anchor_after(range_to_move.start)
6555 ..buffer.anchor_before(range_to_move.end),
6556 String::new(),
6557 ));
6558 let insertion_anchor = buffer.anchor_after(insertion_point);
6559 edits.push((insertion_anchor..insertion_anchor, text));
6560
6561 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6562
6563 // Move selections down
6564 new_selections.extend(contiguous_row_selections.drain(..).map(
6565 |mut selection| {
6566 selection.start.row += row_delta;
6567 selection.end.row += row_delta;
6568 selection
6569 },
6570 ));
6571
6572 // Move folds down
6573 unfold_ranges.push(range_to_move.clone());
6574 for fold in display_map.folds_in_range(
6575 buffer.anchor_before(range_to_move.start)
6576 ..buffer.anchor_after(range_to_move.end),
6577 ) {
6578 let mut start = fold.range.start.to_point(&buffer);
6579 let mut end = fold.range.end.to_point(&buffer);
6580 start.row += row_delta;
6581 end.row += row_delta;
6582 refold_ranges.push((start..end, fold.placeholder.clone()));
6583 }
6584 }
6585 }
6586
6587 // If we didn't move line(s), preserve the existing selections
6588 new_selections.append(&mut contiguous_row_selections);
6589 }
6590
6591 self.transact(cx, |this, cx| {
6592 this.unfold_ranges(unfold_ranges, true, true, cx);
6593 this.buffer.update(cx, |buffer, cx| {
6594 for (range, text) in edits {
6595 buffer.edit([(range, text)], None, cx);
6596 }
6597 });
6598 this.fold_ranges(refold_ranges, true, cx);
6599 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6600 });
6601 }
6602
6603 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6604 let text_layout_details = &self.text_layout_details(cx);
6605 self.transact(cx, |this, cx| {
6606 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6607 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6608 let line_mode = s.line_mode;
6609 s.move_with(|display_map, selection| {
6610 if !selection.is_empty() || line_mode {
6611 return;
6612 }
6613
6614 let mut head = selection.head();
6615 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6616 if head.column() == display_map.line_len(head.row()) {
6617 transpose_offset = display_map
6618 .buffer_snapshot
6619 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6620 }
6621
6622 if transpose_offset == 0 {
6623 return;
6624 }
6625
6626 *head.column_mut() += 1;
6627 head = display_map.clip_point(head, Bias::Right);
6628 let goal = SelectionGoal::HorizontalPosition(
6629 display_map
6630 .x_for_display_point(head, text_layout_details)
6631 .into(),
6632 );
6633 selection.collapse_to(head, goal);
6634
6635 let transpose_start = display_map
6636 .buffer_snapshot
6637 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6638 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6639 let transpose_end = display_map
6640 .buffer_snapshot
6641 .clip_offset(transpose_offset + 1, Bias::Right);
6642 if let Some(ch) =
6643 display_map.buffer_snapshot.chars_at(transpose_start).next()
6644 {
6645 edits.push((transpose_start..transpose_offset, String::new()));
6646 edits.push((transpose_end..transpose_end, ch.to_string()));
6647 }
6648 }
6649 });
6650 edits
6651 });
6652 this.buffer
6653 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6654 let selections = this.selections.all::<usize>(cx);
6655 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6656 s.select(selections);
6657 });
6658 });
6659 }
6660
6661 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6662 let mut text = String::new();
6663 let buffer = self.buffer.read(cx).snapshot(cx);
6664 let mut selections = self.selections.all::<Point>(cx);
6665 let mut clipboard_selections = Vec::with_capacity(selections.len());
6666 {
6667 let max_point = buffer.max_point();
6668 let mut is_first = true;
6669 for selection in &mut selections {
6670 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6671 if is_entire_line {
6672 selection.start = Point::new(selection.start.row, 0);
6673 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6674 selection.goal = SelectionGoal::None;
6675 }
6676 if is_first {
6677 is_first = false;
6678 } else {
6679 text += "\n";
6680 }
6681 let mut len = 0;
6682 for chunk in buffer.text_for_range(selection.start..selection.end) {
6683 text.push_str(chunk);
6684 len += chunk.len();
6685 }
6686 clipboard_selections.push(ClipboardSelection {
6687 len,
6688 is_entire_line,
6689 first_line_indent: buffer
6690 .indent_size_for_line(MultiBufferRow(selection.start.row))
6691 .len,
6692 });
6693 }
6694 }
6695
6696 self.transact(cx, |this, cx| {
6697 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6698 s.select(selections);
6699 });
6700 this.insert("", cx);
6701 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6702 text,
6703 clipboard_selections,
6704 ));
6705 });
6706 }
6707
6708 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6709 let selections = self.selections.all::<Point>(cx);
6710 let buffer = self.buffer.read(cx).read(cx);
6711 let mut text = String::new();
6712
6713 let mut clipboard_selections = Vec::with_capacity(selections.len());
6714 {
6715 let max_point = buffer.max_point();
6716 let mut is_first = true;
6717 for selection in selections.iter() {
6718 let mut start = selection.start;
6719 let mut end = selection.end;
6720 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6721 if is_entire_line {
6722 start = Point::new(start.row, 0);
6723 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6724 }
6725 if is_first {
6726 is_first = false;
6727 } else {
6728 text += "\n";
6729 }
6730 let mut len = 0;
6731 for chunk in buffer.text_for_range(start..end) {
6732 text.push_str(chunk);
6733 len += chunk.len();
6734 }
6735 clipboard_selections.push(ClipboardSelection {
6736 len,
6737 is_entire_line,
6738 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6739 });
6740 }
6741 }
6742
6743 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6744 text,
6745 clipboard_selections,
6746 ));
6747 }
6748
6749 pub fn do_paste(
6750 &mut self,
6751 text: &String,
6752 clipboard_selections: Option<Vec<ClipboardSelection>>,
6753 handle_entire_lines: bool,
6754 cx: &mut ViewContext<Self>,
6755 ) {
6756 if self.read_only(cx) {
6757 return;
6758 }
6759
6760 let clipboard_text = Cow::Borrowed(text);
6761
6762 self.transact(cx, |this, cx| {
6763 if let Some(mut clipboard_selections) = clipboard_selections {
6764 let old_selections = this.selections.all::<usize>(cx);
6765 let all_selections_were_entire_line =
6766 clipboard_selections.iter().all(|s| s.is_entire_line);
6767 let first_selection_indent_column =
6768 clipboard_selections.first().map(|s| s.first_line_indent);
6769 if clipboard_selections.len() != old_selections.len() {
6770 clipboard_selections.drain(..);
6771 }
6772
6773 this.buffer.update(cx, |buffer, cx| {
6774 let snapshot = buffer.read(cx);
6775 let mut start_offset = 0;
6776 let mut edits = Vec::new();
6777 let mut original_indent_columns = Vec::new();
6778 for (ix, selection) in old_selections.iter().enumerate() {
6779 let to_insert;
6780 let entire_line;
6781 let original_indent_column;
6782 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6783 let end_offset = start_offset + clipboard_selection.len;
6784 to_insert = &clipboard_text[start_offset..end_offset];
6785 entire_line = clipboard_selection.is_entire_line;
6786 start_offset = end_offset + 1;
6787 original_indent_column = Some(clipboard_selection.first_line_indent);
6788 } else {
6789 to_insert = clipboard_text.as_str();
6790 entire_line = all_selections_were_entire_line;
6791 original_indent_column = first_selection_indent_column
6792 }
6793
6794 // If the corresponding selection was empty when this slice of the
6795 // clipboard text was written, then the entire line containing the
6796 // selection was copied. If this selection is also currently empty,
6797 // then paste the line before the current line of the buffer.
6798 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6799 let column = selection.start.to_point(&snapshot).column as usize;
6800 let line_start = selection.start - column;
6801 line_start..line_start
6802 } else {
6803 selection.range()
6804 };
6805
6806 edits.push((range, to_insert));
6807 original_indent_columns.extend(original_indent_column);
6808 }
6809 drop(snapshot);
6810
6811 buffer.edit(
6812 edits,
6813 Some(AutoindentMode::Block {
6814 original_indent_columns,
6815 }),
6816 cx,
6817 );
6818 });
6819
6820 let selections = this.selections.all::<usize>(cx);
6821 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6822 } else {
6823 this.insert(&clipboard_text, cx);
6824 }
6825 });
6826 }
6827
6828 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6829 if let Some(item) = cx.read_from_clipboard() {
6830 let entries = item.entries();
6831
6832 match entries.first() {
6833 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
6834 // of all the pasted entries.
6835 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
6836 .do_paste(
6837 clipboard_string.text(),
6838 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
6839 true,
6840 cx,
6841 ),
6842 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
6843 }
6844 }
6845 }
6846
6847 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6848 if self.read_only(cx) {
6849 return;
6850 }
6851
6852 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6853 if let Some((selections, _)) =
6854 self.selection_history.transaction(transaction_id).cloned()
6855 {
6856 self.change_selections(None, cx, |s| {
6857 s.select_anchors(selections.to_vec());
6858 });
6859 }
6860 self.request_autoscroll(Autoscroll::fit(), cx);
6861 self.unmark_text(cx);
6862 self.refresh_inline_completion(true, false, cx);
6863 cx.emit(EditorEvent::Edited { transaction_id });
6864 cx.emit(EditorEvent::TransactionUndone { transaction_id });
6865 }
6866 }
6867
6868 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6869 if self.read_only(cx) {
6870 return;
6871 }
6872
6873 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6874 if let Some((_, Some(selections))) =
6875 self.selection_history.transaction(transaction_id).cloned()
6876 {
6877 self.change_selections(None, cx, |s| {
6878 s.select_anchors(selections.to_vec());
6879 });
6880 }
6881 self.request_autoscroll(Autoscroll::fit(), cx);
6882 self.unmark_text(cx);
6883 self.refresh_inline_completion(true, false, cx);
6884 cx.emit(EditorEvent::Edited { transaction_id });
6885 }
6886 }
6887
6888 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6889 self.buffer
6890 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6891 }
6892
6893 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6894 self.buffer
6895 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6896 }
6897
6898 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6899 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6900 let line_mode = s.line_mode;
6901 s.move_with(|map, selection| {
6902 let cursor = if selection.is_empty() && !line_mode {
6903 movement::left(map, selection.start)
6904 } else {
6905 selection.start
6906 };
6907 selection.collapse_to(cursor, SelectionGoal::None);
6908 });
6909 })
6910 }
6911
6912 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6913 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6914 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6915 })
6916 }
6917
6918 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6919 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6920 let line_mode = s.line_mode;
6921 s.move_with(|map, selection| {
6922 let cursor = if selection.is_empty() && !line_mode {
6923 movement::right(map, selection.end)
6924 } else {
6925 selection.end
6926 };
6927 selection.collapse_to(cursor, SelectionGoal::None)
6928 });
6929 })
6930 }
6931
6932 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6933 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6934 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6935 })
6936 }
6937
6938 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6939 if self.take_rename(true, cx).is_some() {
6940 return;
6941 }
6942
6943 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6944 cx.propagate();
6945 return;
6946 }
6947
6948 let text_layout_details = &self.text_layout_details(cx);
6949 let selection_count = self.selections.count();
6950 let first_selection = self.selections.first_anchor();
6951
6952 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6953 let line_mode = s.line_mode;
6954 s.move_with(|map, selection| {
6955 if !selection.is_empty() && !line_mode {
6956 selection.goal = SelectionGoal::None;
6957 }
6958 let (cursor, goal) = movement::up(
6959 map,
6960 selection.start,
6961 selection.goal,
6962 false,
6963 text_layout_details,
6964 );
6965 selection.collapse_to(cursor, goal);
6966 });
6967 });
6968
6969 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
6970 {
6971 cx.propagate();
6972 }
6973 }
6974
6975 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6976 if self.take_rename(true, cx).is_some() {
6977 return;
6978 }
6979
6980 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6981 cx.propagate();
6982 return;
6983 }
6984
6985 let text_layout_details = &self.text_layout_details(cx);
6986
6987 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6988 let line_mode = s.line_mode;
6989 s.move_with(|map, selection| {
6990 if !selection.is_empty() && !line_mode {
6991 selection.goal = SelectionGoal::None;
6992 }
6993 let (cursor, goal) = movement::up_by_rows(
6994 map,
6995 selection.start,
6996 action.lines,
6997 selection.goal,
6998 false,
6999 text_layout_details,
7000 );
7001 selection.collapse_to(cursor, goal);
7002 });
7003 })
7004 }
7005
7006 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7007 if self.take_rename(true, cx).is_some() {
7008 return;
7009 }
7010
7011 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7012 cx.propagate();
7013 return;
7014 }
7015
7016 let text_layout_details = &self.text_layout_details(cx);
7017
7018 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7019 let line_mode = s.line_mode;
7020 s.move_with(|map, selection| {
7021 if !selection.is_empty() && !line_mode {
7022 selection.goal = SelectionGoal::None;
7023 }
7024 let (cursor, goal) = movement::down_by_rows(
7025 map,
7026 selection.start,
7027 action.lines,
7028 selection.goal,
7029 false,
7030 text_layout_details,
7031 );
7032 selection.collapse_to(cursor, goal);
7033 });
7034 })
7035 }
7036
7037 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7038 let text_layout_details = &self.text_layout_details(cx);
7039 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7040 s.move_heads_with(|map, head, goal| {
7041 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7042 })
7043 })
7044 }
7045
7046 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7047 let text_layout_details = &self.text_layout_details(cx);
7048 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7049 s.move_heads_with(|map, head, goal| {
7050 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7051 })
7052 })
7053 }
7054
7055 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7056 let Some(row_count) = self.visible_row_count() else {
7057 return;
7058 };
7059
7060 let text_layout_details = &self.text_layout_details(cx);
7061
7062 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7063 s.move_heads_with(|map, head, goal| {
7064 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7065 })
7066 })
7067 }
7068
7069 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7070 if self.take_rename(true, cx).is_some() {
7071 return;
7072 }
7073
7074 if self
7075 .context_menu
7076 .write()
7077 .as_mut()
7078 .map(|menu| menu.select_first(self.project.as_ref(), cx))
7079 .unwrap_or(false)
7080 {
7081 return;
7082 }
7083
7084 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7085 cx.propagate();
7086 return;
7087 }
7088
7089 let Some(row_count) = self.visible_row_count() else {
7090 return;
7091 };
7092
7093 let autoscroll = if action.center_cursor {
7094 Autoscroll::center()
7095 } else {
7096 Autoscroll::fit()
7097 };
7098
7099 let text_layout_details = &self.text_layout_details(cx);
7100
7101 self.change_selections(Some(autoscroll), cx, |s| {
7102 let line_mode = s.line_mode;
7103 s.move_with(|map, selection| {
7104 if !selection.is_empty() && !line_mode {
7105 selection.goal = SelectionGoal::None;
7106 }
7107 let (cursor, goal) = movement::up_by_rows(
7108 map,
7109 selection.end,
7110 row_count,
7111 selection.goal,
7112 false,
7113 text_layout_details,
7114 );
7115 selection.collapse_to(cursor, goal);
7116 });
7117 });
7118 }
7119
7120 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7121 let text_layout_details = &self.text_layout_details(cx);
7122 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7123 s.move_heads_with(|map, head, goal| {
7124 movement::up(map, head, goal, false, text_layout_details)
7125 })
7126 })
7127 }
7128
7129 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7130 self.take_rename(true, cx);
7131
7132 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7133 cx.propagate();
7134 return;
7135 }
7136
7137 let text_layout_details = &self.text_layout_details(cx);
7138 let selection_count = self.selections.count();
7139 let first_selection = self.selections.first_anchor();
7140
7141 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7142 let line_mode = s.line_mode;
7143 s.move_with(|map, selection| {
7144 if !selection.is_empty() && !line_mode {
7145 selection.goal = SelectionGoal::None;
7146 }
7147 let (cursor, goal) = movement::down(
7148 map,
7149 selection.end,
7150 selection.goal,
7151 false,
7152 text_layout_details,
7153 );
7154 selection.collapse_to(cursor, goal);
7155 });
7156 });
7157
7158 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7159 {
7160 cx.propagate();
7161 }
7162 }
7163
7164 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7165 let Some(row_count) = self.visible_row_count() else {
7166 return;
7167 };
7168
7169 let text_layout_details = &self.text_layout_details(cx);
7170
7171 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7172 s.move_heads_with(|map, head, goal| {
7173 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7174 })
7175 })
7176 }
7177
7178 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7179 if self.take_rename(true, cx).is_some() {
7180 return;
7181 }
7182
7183 if self
7184 .context_menu
7185 .write()
7186 .as_mut()
7187 .map(|menu| menu.select_last(self.project.as_ref(), cx))
7188 .unwrap_or(false)
7189 {
7190 return;
7191 }
7192
7193 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7194 cx.propagate();
7195 return;
7196 }
7197
7198 let Some(row_count) = self.visible_row_count() else {
7199 return;
7200 };
7201
7202 let autoscroll = if action.center_cursor {
7203 Autoscroll::center()
7204 } else {
7205 Autoscroll::fit()
7206 };
7207
7208 let text_layout_details = &self.text_layout_details(cx);
7209 self.change_selections(Some(autoscroll), cx, |s| {
7210 let line_mode = s.line_mode;
7211 s.move_with(|map, selection| {
7212 if !selection.is_empty() && !line_mode {
7213 selection.goal = SelectionGoal::None;
7214 }
7215 let (cursor, goal) = movement::down_by_rows(
7216 map,
7217 selection.end,
7218 row_count,
7219 selection.goal,
7220 false,
7221 text_layout_details,
7222 );
7223 selection.collapse_to(cursor, goal);
7224 });
7225 });
7226 }
7227
7228 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7229 let text_layout_details = &self.text_layout_details(cx);
7230 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7231 s.move_heads_with(|map, head, goal| {
7232 movement::down(map, head, goal, false, text_layout_details)
7233 })
7234 });
7235 }
7236
7237 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7238 if let Some(context_menu) = self.context_menu.write().as_mut() {
7239 context_menu.select_first(self.project.as_ref(), cx);
7240 }
7241 }
7242
7243 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7244 if let Some(context_menu) = self.context_menu.write().as_mut() {
7245 context_menu.select_prev(self.project.as_ref(), cx);
7246 }
7247 }
7248
7249 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7250 if let Some(context_menu) = self.context_menu.write().as_mut() {
7251 context_menu.select_next(self.project.as_ref(), cx);
7252 }
7253 }
7254
7255 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7256 if let Some(context_menu) = self.context_menu.write().as_mut() {
7257 context_menu.select_last(self.project.as_ref(), cx);
7258 }
7259 }
7260
7261 pub fn move_to_previous_word_start(
7262 &mut self,
7263 _: &MoveToPreviousWordStart,
7264 cx: &mut ViewContext<Self>,
7265 ) {
7266 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7267 s.move_cursors_with(|map, head, _| {
7268 (
7269 movement::previous_word_start(map, head),
7270 SelectionGoal::None,
7271 )
7272 });
7273 })
7274 }
7275
7276 pub fn move_to_previous_subword_start(
7277 &mut self,
7278 _: &MoveToPreviousSubwordStart,
7279 cx: &mut ViewContext<Self>,
7280 ) {
7281 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7282 s.move_cursors_with(|map, head, _| {
7283 (
7284 movement::previous_subword_start(map, head),
7285 SelectionGoal::None,
7286 )
7287 });
7288 })
7289 }
7290
7291 pub fn select_to_previous_word_start(
7292 &mut self,
7293 _: &SelectToPreviousWordStart,
7294 cx: &mut ViewContext<Self>,
7295 ) {
7296 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7297 s.move_heads_with(|map, head, _| {
7298 (
7299 movement::previous_word_start(map, head),
7300 SelectionGoal::None,
7301 )
7302 });
7303 })
7304 }
7305
7306 pub fn select_to_previous_subword_start(
7307 &mut self,
7308 _: &SelectToPreviousSubwordStart,
7309 cx: &mut ViewContext<Self>,
7310 ) {
7311 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7312 s.move_heads_with(|map, head, _| {
7313 (
7314 movement::previous_subword_start(map, head),
7315 SelectionGoal::None,
7316 )
7317 });
7318 })
7319 }
7320
7321 pub fn delete_to_previous_word_start(
7322 &mut self,
7323 action: &DeleteToPreviousWordStart,
7324 cx: &mut ViewContext<Self>,
7325 ) {
7326 self.transact(cx, |this, cx| {
7327 this.select_autoclose_pair(cx);
7328 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7329 let line_mode = s.line_mode;
7330 s.move_with(|map, selection| {
7331 if selection.is_empty() && !line_mode {
7332 let cursor = if action.ignore_newlines {
7333 movement::previous_word_start(map, selection.head())
7334 } else {
7335 movement::previous_word_start_or_newline(map, selection.head())
7336 };
7337 selection.set_head(cursor, SelectionGoal::None);
7338 }
7339 });
7340 });
7341 this.insert("", cx);
7342 });
7343 }
7344
7345 pub fn delete_to_previous_subword_start(
7346 &mut self,
7347 _: &DeleteToPreviousSubwordStart,
7348 cx: &mut ViewContext<Self>,
7349 ) {
7350 self.transact(cx, |this, cx| {
7351 this.select_autoclose_pair(cx);
7352 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7353 let line_mode = s.line_mode;
7354 s.move_with(|map, selection| {
7355 if selection.is_empty() && !line_mode {
7356 let cursor = movement::previous_subword_start(map, selection.head());
7357 selection.set_head(cursor, SelectionGoal::None);
7358 }
7359 });
7360 });
7361 this.insert("", cx);
7362 });
7363 }
7364
7365 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7366 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7367 s.move_cursors_with(|map, head, _| {
7368 (movement::next_word_end(map, head), SelectionGoal::None)
7369 });
7370 })
7371 }
7372
7373 pub fn move_to_next_subword_end(
7374 &mut self,
7375 _: &MoveToNextSubwordEnd,
7376 cx: &mut ViewContext<Self>,
7377 ) {
7378 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7379 s.move_cursors_with(|map, head, _| {
7380 (movement::next_subword_end(map, head), SelectionGoal::None)
7381 });
7382 })
7383 }
7384
7385 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7386 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7387 s.move_heads_with(|map, head, _| {
7388 (movement::next_word_end(map, head), SelectionGoal::None)
7389 });
7390 })
7391 }
7392
7393 pub fn select_to_next_subword_end(
7394 &mut self,
7395 _: &SelectToNextSubwordEnd,
7396 cx: &mut ViewContext<Self>,
7397 ) {
7398 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7399 s.move_heads_with(|map, head, _| {
7400 (movement::next_subword_end(map, head), SelectionGoal::None)
7401 });
7402 })
7403 }
7404
7405 pub fn delete_to_next_word_end(
7406 &mut self,
7407 action: &DeleteToNextWordEnd,
7408 cx: &mut ViewContext<Self>,
7409 ) {
7410 self.transact(cx, |this, cx| {
7411 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7412 let line_mode = s.line_mode;
7413 s.move_with(|map, selection| {
7414 if selection.is_empty() && !line_mode {
7415 let cursor = if action.ignore_newlines {
7416 movement::next_word_end(map, selection.head())
7417 } else {
7418 movement::next_word_end_or_newline(map, selection.head())
7419 };
7420 selection.set_head(cursor, SelectionGoal::None);
7421 }
7422 });
7423 });
7424 this.insert("", cx);
7425 });
7426 }
7427
7428 pub fn delete_to_next_subword_end(
7429 &mut self,
7430 _: &DeleteToNextSubwordEnd,
7431 cx: &mut ViewContext<Self>,
7432 ) {
7433 self.transact(cx, |this, cx| {
7434 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7435 s.move_with(|map, selection| {
7436 if selection.is_empty() {
7437 let cursor = movement::next_subword_end(map, selection.head());
7438 selection.set_head(cursor, SelectionGoal::None);
7439 }
7440 });
7441 });
7442 this.insert("", cx);
7443 });
7444 }
7445
7446 pub fn move_to_beginning_of_line(
7447 &mut self,
7448 action: &MoveToBeginningOfLine,
7449 cx: &mut ViewContext<Self>,
7450 ) {
7451 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7452 s.move_cursors_with(|map, head, _| {
7453 (
7454 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7455 SelectionGoal::None,
7456 )
7457 });
7458 })
7459 }
7460
7461 pub fn select_to_beginning_of_line(
7462 &mut self,
7463 action: &SelectToBeginningOfLine,
7464 cx: &mut ViewContext<Self>,
7465 ) {
7466 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7467 s.move_heads_with(|map, head, _| {
7468 (
7469 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7470 SelectionGoal::None,
7471 )
7472 });
7473 });
7474 }
7475
7476 pub fn delete_to_beginning_of_line(
7477 &mut self,
7478 _: &DeleteToBeginningOfLine,
7479 cx: &mut ViewContext<Self>,
7480 ) {
7481 self.transact(cx, |this, cx| {
7482 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7483 s.move_with(|_, selection| {
7484 selection.reversed = true;
7485 });
7486 });
7487
7488 this.select_to_beginning_of_line(
7489 &SelectToBeginningOfLine {
7490 stop_at_soft_wraps: false,
7491 },
7492 cx,
7493 );
7494 this.backspace(&Backspace, cx);
7495 });
7496 }
7497
7498 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7499 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7500 s.move_cursors_with(|map, head, _| {
7501 (
7502 movement::line_end(map, head, action.stop_at_soft_wraps),
7503 SelectionGoal::None,
7504 )
7505 });
7506 })
7507 }
7508
7509 pub fn select_to_end_of_line(
7510 &mut self,
7511 action: &SelectToEndOfLine,
7512 cx: &mut ViewContext<Self>,
7513 ) {
7514 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7515 s.move_heads_with(|map, head, _| {
7516 (
7517 movement::line_end(map, head, action.stop_at_soft_wraps),
7518 SelectionGoal::None,
7519 )
7520 });
7521 })
7522 }
7523
7524 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7525 self.transact(cx, |this, cx| {
7526 this.select_to_end_of_line(
7527 &SelectToEndOfLine {
7528 stop_at_soft_wraps: false,
7529 },
7530 cx,
7531 );
7532 this.delete(&Delete, cx);
7533 });
7534 }
7535
7536 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7537 self.transact(cx, |this, cx| {
7538 this.select_to_end_of_line(
7539 &SelectToEndOfLine {
7540 stop_at_soft_wraps: false,
7541 },
7542 cx,
7543 );
7544 this.cut(&Cut, cx);
7545 });
7546 }
7547
7548 pub fn move_to_start_of_paragraph(
7549 &mut self,
7550 _: &MoveToStartOfParagraph,
7551 cx: &mut ViewContext<Self>,
7552 ) {
7553 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7554 cx.propagate();
7555 return;
7556 }
7557
7558 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7559 s.move_with(|map, selection| {
7560 selection.collapse_to(
7561 movement::start_of_paragraph(map, selection.head(), 1),
7562 SelectionGoal::None,
7563 )
7564 });
7565 })
7566 }
7567
7568 pub fn move_to_end_of_paragraph(
7569 &mut self,
7570 _: &MoveToEndOfParagraph,
7571 cx: &mut ViewContext<Self>,
7572 ) {
7573 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7574 cx.propagate();
7575 return;
7576 }
7577
7578 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7579 s.move_with(|map, selection| {
7580 selection.collapse_to(
7581 movement::end_of_paragraph(map, selection.head(), 1),
7582 SelectionGoal::None,
7583 )
7584 });
7585 })
7586 }
7587
7588 pub fn select_to_start_of_paragraph(
7589 &mut self,
7590 _: &SelectToStartOfParagraph,
7591 cx: &mut ViewContext<Self>,
7592 ) {
7593 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7594 cx.propagate();
7595 return;
7596 }
7597
7598 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7599 s.move_heads_with(|map, head, _| {
7600 (
7601 movement::start_of_paragraph(map, head, 1),
7602 SelectionGoal::None,
7603 )
7604 });
7605 })
7606 }
7607
7608 pub fn select_to_end_of_paragraph(
7609 &mut self,
7610 _: &SelectToEndOfParagraph,
7611 cx: &mut ViewContext<Self>,
7612 ) {
7613 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7614 cx.propagate();
7615 return;
7616 }
7617
7618 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7619 s.move_heads_with(|map, head, _| {
7620 (
7621 movement::end_of_paragraph(map, head, 1),
7622 SelectionGoal::None,
7623 )
7624 });
7625 })
7626 }
7627
7628 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7629 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7630 cx.propagate();
7631 return;
7632 }
7633
7634 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7635 s.select_ranges(vec![0..0]);
7636 });
7637 }
7638
7639 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7640 let mut selection = self.selections.last::<Point>(cx);
7641 selection.set_head(Point::zero(), SelectionGoal::None);
7642
7643 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7644 s.select(vec![selection]);
7645 });
7646 }
7647
7648 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7649 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7650 cx.propagate();
7651 return;
7652 }
7653
7654 let cursor = self.buffer.read(cx).read(cx).len();
7655 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7656 s.select_ranges(vec![cursor..cursor])
7657 });
7658 }
7659
7660 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7661 self.nav_history = nav_history;
7662 }
7663
7664 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7665 self.nav_history.as_ref()
7666 }
7667
7668 fn push_to_nav_history(
7669 &mut self,
7670 cursor_anchor: Anchor,
7671 new_position: Option<Point>,
7672 cx: &mut ViewContext<Self>,
7673 ) {
7674 if let Some(nav_history) = self.nav_history.as_mut() {
7675 let buffer = self.buffer.read(cx).read(cx);
7676 let cursor_position = cursor_anchor.to_point(&buffer);
7677 let scroll_state = self.scroll_manager.anchor();
7678 let scroll_top_row = scroll_state.top_row(&buffer);
7679 drop(buffer);
7680
7681 if let Some(new_position) = new_position {
7682 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7683 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7684 return;
7685 }
7686 }
7687
7688 nav_history.push(
7689 Some(NavigationData {
7690 cursor_anchor,
7691 cursor_position,
7692 scroll_anchor: scroll_state,
7693 scroll_top_row,
7694 }),
7695 cx,
7696 );
7697 }
7698 }
7699
7700 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7701 let buffer = self.buffer.read(cx).snapshot(cx);
7702 let mut selection = self.selections.first::<usize>(cx);
7703 selection.set_head(buffer.len(), SelectionGoal::None);
7704 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7705 s.select(vec![selection]);
7706 });
7707 }
7708
7709 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7710 let end = self.buffer.read(cx).read(cx).len();
7711 self.change_selections(None, cx, |s| {
7712 s.select_ranges(vec![0..end]);
7713 });
7714 }
7715
7716 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7717 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7718 let mut selections = self.selections.all::<Point>(cx);
7719 let max_point = display_map.buffer_snapshot.max_point();
7720 for selection in &mut selections {
7721 let rows = selection.spanned_rows(true, &display_map);
7722 selection.start = Point::new(rows.start.0, 0);
7723 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7724 selection.reversed = false;
7725 }
7726 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7727 s.select(selections);
7728 });
7729 }
7730
7731 pub fn split_selection_into_lines(
7732 &mut self,
7733 _: &SplitSelectionIntoLines,
7734 cx: &mut ViewContext<Self>,
7735 ) {
7736 let mut to_unfold = Vec::new();
7737 let mut new_selection_ranges = Vec::new();
7738 {
7739 let selections = self.selections.all::<Point>(cx);
7740 let buffer = self.buffer.read(cx).read(cx);
7741 for selection in selections {
7742 for row in selection.start.row..selection.end.row {
7743 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7744 new_selection_ranges.push(cursor..cursor);
7745 }
7746 new_selection_ranges.push(selection.end..selection.end);
7747 to_unfold.push(selection.start..selection.end);
7748 }
7749 }
7750 self.unfold_ranges(to_unfold, true, true, cx);
7751 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7752 s.select_ranges(new_selection_ranges);
7753 });
7754 }
7755
7756 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7757 self.add_selection(true, cx);
7758 }
7759
7760 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7761 self.add_selection(false, cx);
7762 }
7763
7764 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7765 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7766 let mut selections = self.selections.all::<Point>(cx);
7767 let text_layout_details = self.text_layout_details(cx);
7768 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7769 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7770 let range = oldest_selection.display_range(&display_map).sorted();
7771
7772 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7773 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7774 let positions = start_x.min(end_x)..start_x.max(end_x);
7775
7776 selections.clear();
7777 let mut stack = Vec::new();
7778 for row in range.start.row().0..=range.end.row().0 {
7779 if let Some(selection) = self.selections.build_columnar_selection(
7780 &display_map,
7781 DisplayRow(row),
7782 &positions,
7783 oldest_selection.reversed,
7784 &text_layout_details,
7785 ) {
7786 stack.push(selection.id);
7787 selections.push(selection);
7788 }
7789 }
7790
7791 if above {
7792 stack.reverse();
7793 }
7794
7795 AddSelectionsState { above, stack }
7796 });
7797
7798 let last_added_selection = *state.stack.last().unwrap();
7799 let mut new_selections = Vec::new();
7800 if above == state.above {
7801 let end_row = if above {
7802 DisplayRow(0)
7803 } else {
7804 display_map.max_point().row()
7805 };
7806
7807 'outer: for selection in selections {
7808 if selection.id == last_added_selection {
7809 let range = selection.display_range(&display_map).sorted();
7810 debug_assert_eq!(range.start.row(), range.end.row());
7811 let mut row = range.start.row();
7812 let positions =
7813 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7814 px(start)..px(end)
7815 } else {
7816 let start_x =
7817 display_map.x_for_display_point(range.start, &text_layout_details);
7818 let end_x =
7819 display_map.x_for_display_point(range.end, &text_layout_details);
7820 start_x.min(end_x)..start_x.max(end_x)
7821 };
7822
7823 while row != end_row {
7824 if above {
7825 row.0 -= 1;
7826 } else {
7827 row.0 += 1;
7828 }
7829
7830 if let Some(new_selection) = self.selections.build_columnar_selection(
7831 &display_map,
7832 row,
7833 &positions,
7834 selection.reversed,
7835 &text_layout_details,
7836 ) {
7837 state.stack.push(new_selection.id);
7838 if above {
7839 new_selections.push(new_selection);
7840 new_selections.push(selection);
7841 } else {
7842 new_selections.push(selection);
7843 new_selections.push(new_selection);
7844 }
7845
7846 continue 'outer;
7847 }
7848 }
7849 }
7850
7851 new_selections.push(selection);
7852 }
7853 } else {
7854 new_selections = selections;
7855 new_selections.retain(|s| s.id != last_added_selection);
7856 state.stack.pop();
7857 }
7858
7859 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7860 s.select(new_selections);
7861 });
7862 if state.stack.len() > 1 {
7863 self.add_selections_state = Some(state);
7864 }
7865 }
7866
7867 pub fn select_next_match_internal(
7868 &mut self,
7869 display_map: &DisplaySnapshot,
7870 replace_newest: bool,
7871 autoscroll: Option<Autoscroll>,
7872 cx: &mut ViewContext<Self>,
7873 ) -> Result<()> {
7874 fn select_next_match_ranges(
7875 this: &mut Editor,
7876 range: Range<usize>,
7877 replace_newest: bool,
7878 auto_scroll: Option<Autoscroll>,
7879 cx: &mut ViewContext<Editor>,
7880 ) {
7881 this.unfold_ranges([range.clone()], false, true, cx);
7882 this.change_selections(auto_scroll, cx, |s| {
7883 if replace_newest {
7884 s.delete(s.newest_anchor().id);
7885 }
7886 s.insert_range(range.clone());
7887 });
7888 }
7889
7890 let buffer = &display_map.buffer_snapshot;
7891 let mut selections = self.selections.all::<usize>(cx);
7892 if let Some(mut select_next_state) = self.select_next_state.take() {
7893 let query = &select_next_state.query;
7894 if !select_next_state.done {
7895 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7896 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7897 let mut next_selected_range = None;
7898
7899 let bytes_after_last_selection =
7900 buffer.bytes_in_range(last_selection.end..buffer.len());
7901 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7902 let query_matches = query
7903 .stream_find_iter(bytes_after_last_selection)
7904 .map(|result| (last_selection.end, result))
7905 .chain(
7906 query
7907 .stream_find_iter(bytes_before_first_selection)
7908 .map(|result| (0, result)),
7909 );
7910
7911 for (start_offset, query_match) in query_matches {
7912 let query_match = query_match.unwrap(); // can only fail due to I/O
7913 let offset_range =
7914 start_offset + query_match.start()..start_offset + query_match.end();
7915 let display_range = offset_range.start.to_display_point(display_map)
7916 ..offset_range.end.to_display_point(display_map);
7917
7918 if !select_next_state.wordwise
7919 || (!movement::is_inside_word(display_map, display_range.start)
7920 && !movement::is_inside_word(display_map, display_range.end))
7921 {
7922 // TODO: This is n^2, because we might check all the selections
7923 if !selections
7924 .iter()
7925 .any(|selection| selection.range().overlaps(&offset_range))
7926 {
7927 next_selected_range = Some(offset_range);
7928 break;
7929 }
7930 }
7931 }
7932
7933 if let Some(next_selected_range) = next_selected_range {
7934 select_next_match_ranges(
7935 self,
7936 next_selected_range,
7937 replace_newest,
7938 autoscroll,
7939 cx,
7940 );
7941 } else {
7942 select_next_state.done = true;
7943 }
7944 }
7945
7946 self.select_next_state = Some(select_next_state);
7947 } else {
7948 let mut only_carets = true;
7949 let mut same_text_selected = true;
7950 let mut selected_text = None;
7951
7952 let mut selections_iter = selections.iter().peekable();
7953 while let Some(selection) = selections_iter.next() {
7954 if selection.start != selection.end {
7955 only_carets = false;
7956 }
7957
7958 if same_text_selected {
7959 if selected_text.is_none() {
7960 selected_text =
7961 Some(buffer.text_for_range(selection.range()).collect::<String>());
7962 }
7963
7964 if let Some(next_selection) = selections_iter.peek() {
7965 if next_selection.range().len() == selection.range().len() {
7966 let next_selected_text = buffer
7967 .text_for_range(next_selection.range())
7968 .collect::<String>();
7969 if Some(next_selected_text) != selected_text {
7970 same_text_selected = false;
7971 selected_text = None;
7972 }
7973 } else {
7974 same_text_selected = false;
7975 selected_text = None;
7976 }
7977 }
7978 }
7979 }
7980
7981 if only_carets {
7982 for selection in &mut selections {
7983 let word_range = movement::surrounding_word(
7984 display_map,
7985 selection.start.to_display_point(display_map),
7986 );
7987 selection.start = word_range.start.to_offset(display_map, Bias::Left);
7988 selection.end = word_range.end.to_offset(display_map, Bias::Left);
7989 selection.goal = SelectionGoal::None;
7990 selection.reversed = false;
7991 select_next_match_ranges(
7992 self,
7993 selection.start..selection.end,
7994 replace_newest,
7995 autoscroll,
7996 cx,
7997 );
7998 }
7999
8000 if selections.len() == 1 {
8001 let selection = selections
8002 .last()
8003 .expect("ensured that there's only one selection");
8004 let query = buffer
8005 .text_for_range(selection.start..selection.end)
8006 .collect::<String>();
8007 let is_empty = query.is_empty();
8008 let select_state = SelectNextState {
8009 query: AhoCorasick::new(&[query])?,
8010 wordwise: true,
8011 done: is_empty,
8012 };
8013 self.select_next_state = Some(select_state);
8014 } else {
8015 self.select_next_state = None;
8016 }
8017 } else if let Some(selected_text) = selected_text {
8018 self.select_next_state = Some(SelectNextState {
8019 query: AhoCorasick::new(&[selected_text])?,
8020 wordwise: false,
8021 done: false,
8022 });
8023 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8024 }
8025 }
8026 Ok(())
8027 }
8028
8029 pub fn select_all_matches(
8030 &mut self,
8031 _action: &SelectAllMatches,
8032 cx: &mut ViewContext<Self>,
8033 ) -> Result<()> {
8034 self.push_to_selection_history();
8035 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8036
8037 self.select_next_match_internal(&display_map, false, None, cx)?;
8038 let Some(select_next_state) = self.select_next_state.as_mut() else {
8039 return Ok(());
8040 };
8041 if select_next_state.done {
8042 return Ok(());
8043 }
8044
8045 let mut new_selections = self.selections.all::<usize>(cx);
8046
8047 let buffer = &display_map.buffer_snapshot;
8048 let query_matches = select_next_state
8049 .query
8050 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8051
8052 for query_match in query_matches {
8053 let query_match = query_match.unwrap(); // can only fail due to I/O
8054 let offset_range = query_match.start()..query_match.end();
8055 let display_range = offset_range.start.to_display_point(&display_map)
8056 ..offset_range.end.to_display_point(&display_map);
8057
8058 if !select_next_state.wordwise
8059 || (!movement::is_inside_word(&display_map, display_range.start)
8060 && !movement::is_inside_word(&display_map, display_range.end))
8061 {
8062 self.selections.change_with(cx, |selections| {
8063 new_selections.push(Selection {
8064 id: selections.new_selection_id(),
8065 start: offset_range.start,
8066 end: offset_range.end,
8067 reversed: false,
8068 goal: SelectionGoal::None,
8069 });
8070 });
8071 }
8072 }
8073
8074 new_selections.sort_by_key(|selection| selection.start);
8075 let mut ix = 0;
8076 while ix + 1 < new_selections.len() {
8077 let current_selection = &new_selections[ix];
8078 let next_selection = &new_selections[ix + 1];
8079 if current_selection.range().overlaps(&next_selection.range()) {
8080 if current_selection.id < next_selection.id {
8081 new_selections.remove(ix + 1);
8082 } else {
8083 new_selections.remove(ix);
8084 }
8085 } else {
8086 ix += 1;
8087 }
8088 }
8089
8090 select_next_state.done = true;
8091 self.unfold_ranges(
8092 new_selections.iter().map(|selection| selection.range()),
8093 false,
8094 false,
8095 cx,
8096 );
8097 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8098 selections.select(new_selections)
8099 });
8100
8101 Ok(())
8102 }
8103
8104 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8105 self.push_to_selection_history();
8106 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8107 self.select_next_match_internal(
8108 &display_map,
8109 action.replace_newest,
8110 Some(Autoscroll::newest()),
8111 cx,
8112 )?;
8113 Ok(())
8114 }
8115
8116 pub fn select_previous(
8117 &mut self,
8118 action: &SelectPrevious,
8119 cx: &mut ViewContext<Self>,
8120 ) -> Result<()> {
8121 self.push_to_selection_history();
8122 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8123 let buffer = &display_map.buffer_snapshot;
8124 let mut selections = self.selections.all::<usize>(cx);
8125 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8126 let query = &select_prev_state.query;
8127 if !select_prev_state.done {
8128 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8129 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8130 let mut next_selected_range = None;
8131 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8132 let bytes_before_last_selection =
8133 buffer.reversed_bytes_in_range(0..last_selection.start);
8134 let bytes_after_first_selection =
8135 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8136 let query_matches = query
8137 .stream_find_iter(bytes_before_last_selection)
8138 .map(|result| (last_selection.start, result))
8139 .chain(
8140 query
8141 .stream_find_iter(bytes_after_first_selection)
8142 .map(|result| (buffer.len(), result)),
8143 );
8144 for (end_offset, query_match) in query_matches {
8145 let query_match = query_match.unwrap(); // can only fail due to I/O
8146 let offset_range =
8147 end_offset - query_match.end()..end_offset - query_match.start();
8148 let display_range = offset_range.start.to_display_point(&display_map)
8149 ..offset_range.end.to_display_point(&display_map);
8150
8151 if !select_prev_state.wordwise
8152 || (!movement::is_inside_word(&display_map, display_range.start)
8153 && !movement::is_inside_word(&display_map, display_range.end))
8154 {
8155 next_selected_range = Some(offset_range);
8156 break;
8157 }
8158 }
8159
8160 if let Some(next_selected_range) = next_selected_range {
8161 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
8162 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8163 if action.replace_newest {
8164 s.delete(s.newest_anchor().id);
8165 }
8166 s.insert_range(next_selected_range);
8167 });
8168 } else {
8169 select_prev_state.done = true;
8170 }
8171 }
8172
8173 self.select_prev_state = Some(select_prev_state);
8174 } else {
8175 let mut only_carets = true;
8176 let mut same_text_selected = true;
8177 let mut selected_text = None;
8178
8179 let mut selections_iter = selections.iter().peekable();
8180 while let Some(selection) = selections_iter.next() {
8181 if selection.start != selection.end {
8182 only_carets = false;
8183 }
8184
8185 if same_text_selected {
8186 if selected_text.is_none() {
8187 selected_text =
8188 Some(buffer.text_for_range(selection.range()).collect::<String>());
8189 }
8190
8191 if let Some(next_selection) = selections_iter.peek() {
8192 if next_selection.range().len() == selection.range().len() {
8193 let next_selected_text = buffer
8194 .text_for_range(next_selection.range())
8195 .collect::<String>();
8196 if Some(next_selected_text) != selected_text {
8197 same_text_selected = false;
8198 selected_text = None;
8199 }
8200 } else {
8201 same_text_selected = false;
8202 selected_text = None;
8203 }
8204 }
8205 }
8206 }
8207
8208 if only_carets {
8209 for selection in &mut selections {
8210 let word_range = movement::surrounding_word(
8211 &display_map,
8212 selection.start.to_display_point(&display_map),
8213 );
8214 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8215 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8216 selection.goal = SelectionGoal::None;
8217 selection.reversed = false;
8218 }
8219 if selections.len() == 1 {
8220 let selection = selections
8221 .last()
8222 .expect("ensured that there's only one selection");
8223 let query = buffer
8224 .text_for_range(selection.start..selection.end)
8225 .collect::<String>();
8226 let is_empty = query.is_empty();
8227 let select_state = SelectNextState {
8228 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8229 wordwise: true,
8230 done: is_empty,
8231 };
8232 self.select_prev_state = Some(select_state);
8233 } else {
8234 self.select_prev_state = None;
8235 }
8236
8237 self.unfold_ranges(
8238 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8239 false,
8240 true,
8241 cx,
8242 );
8243 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8244 s.select(selections);
8245 });
8246 } else if let Some(selected_text) = selected_text {
8247 self.select_prev_state = Some(SelectNextState {
8248 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8249 wordwise: false,
8250 done: false,
8251 });
8252 self.select_previous(action, cx)?;
8253 }
8254 }
8255 Ok(())
8256 }
8257
8258 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8259 let text_layout_details = &self.text_layout_details(cx);
8260 self.transact(cx, |this, cx| {
8261 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8262 let mut edits = Vec::new();
8263 let mut selection_edit_ranges = Vec::new();
8264 let mut last_toggled_row = None;
8265 let snapshot = this.buffer.read(cx).read(cx);
8266 let empty_str: Arc<str> = Arc::default();
8267 let mut suffixes_inserted = Vec::new();
8268
8269 fn comment_prefix_range(
8270 snapshot: &MultiBufferSnapshot,
8271 row: MultiBufferRow,
8272 comment_prefix: &str,
8273 comment_prefix_whitespace: &str,
8274 ) -> Range<Point> {
8275 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
8276
8277 let mut line_bytes = snapshot
8278 .bytes_in_range(start..snapshot.max_point())
8279 .flatten()
8280 .copied();
8281
8282 // If this line currently begins with the line comment prefix, then record
8283 // the range containing the prefix.
8284 if line_bytes
8285 .by_ref()
8286 .take(comment_prefix.len())
8287 .eq(comment_prefix.bytes())
8288 {
8289 // Include any whitespace that matches the comment prefix.
8290 let matching_whitespace_len = line_bytes
8291 .zip(comment_prefix_whitespace.bytes())
8292 .take_while(|(a, b)| a == b)
8293 .count() as u32;
8294 let end = Point::new(
8295 start.row,
8296 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8297 );
8298 start..end
8299 } else {
8300 start..start
8301 }
8302 }
8303
8304 fn comment_suffix_range(
8305 snapshot: &MultiBufferSnapshot,
8306 row: MultiBufferRow,
8307 comment_suffix: &str,
8308 comment_suffix_has_leading_space: bool,
8309 ) -> Range<Point> {
8310 let end = Point::new(row.0, snapshot.line_len(row));
8311 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8312
8313 let mut line_end_bytes = snapshot
8314 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8315 .flatten()
8316 .copied();
8317
8318 let leading_space_len = if suffix_start_column > 0
8319 && line_end_bytes.next() == Some(b' ')
8320 && comment_suffix_has_leading_space
8321 {
8322 1
8323 } else {
8324 0
8325 };
8326
8327 // If this line currently begins with the line comment prefix, then record
8328 // the range containing the prefix.
8329 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8330 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8331 start..end
8332 } else {
8333 end..end
8334 }
8335 }
8336
8337 // TODO: Handle selections that cross excerpts
8338 for selection in &mut selections {
8339 let start_column = snapshot
8340 .indent_size_for_line(MultiBufferRow(selection.start.row))
8341 .len;
8342 let language = if let Some(language) =
8343 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8344 {
8345 language
8346 } else {
8347 continue;
8348 };
8349
8350 selection_edit_ranges.clear();
8351
8352 // If multiple selections contain a given row, avoid processing that
8353 // row more than once.
8354 let mut start_row = MultiBufferRow(selection.start.row);
8355 if last_toggled_row == Some(start_row) {
8356 start_row = start_row.next_row();
8357 }
8358 let end_row =
8359 if selection.end.row > selection.start.row && selection.end.column == 0 {
8360 MultiBufferRow(selection.end.row - 1)
8361 } else {
8362 MultiBufferRow(selection.end.row)
8363 };
8364 last_toggled_row = Some(end_row);
8365
8366 if start_row > end_row {
8367 continue;
8368 }
8369
8370 // If the language has line comments, toggle those.
8371 let full_comment_prefixes = language.line_comment_prefixes();
8372 if !full_comment_prefixes.is_empty() {
8373 let first_prefix = full_comment_prefixes
8374 .first()
8375 .expect("prefixes is non-empty");
8376 let prefix_trimmed_lengths = full_comment_prefixes
8377 .iter()
8378 .map(|p| p.trim_end_matches(' ').len())
8379 .collect::<SmallVec<[usize; 4]>>();
8380
8381 let mut all_selection_lines_are_comments = true;
8382
8383 for row in start_row.0..=end_row.0 {
8384 let row = MultiBufferRow(row);
8385 if start_row < end_row && snapshot.is_line_blank(row) {
8386 continue;
8387 }
8388
8389 let prefix_range = full_comment_prefixes
8390 .iter()
8391 .zip(prefix_trimmed_lengths.iter().copied())
8392 .map(|(prefix, trimmed_prefix_len)| {
8393 comment_prefix_range(
8394 snapshot.deref(),
8395 row,
8396 &prefix[..trimmed_prefix_len],
8397 &prefix[trimmed_prefix_len..],
8398 )
8399 })
8400 .max_by_key(|range| range.end.column - range.start.column)
8401 .expect("prefixes is non-empty");
8402
8403 if prefix_range.is_empty() {
8404 all_selection_lines_are_comments = false;
8405 }
8406
8407 selection_edit_ranges.push(prefix_range);
8408 }
8409
8410 if all_selection_lines_are_comments {
8411 edits.extend(
8412 selection_edit_ranges
8413 .iter()
8414 .cloned()
8415 .map(|range| (range, empty_str.clone())),
8416 );
8417 } else {
8418 let min_column = selection_edit_ranges
8419 .iter()
8420 .map(|range| range.start.column)
8421 .min()
8422 .unwrap_or(0);
8423 edits.extend(selection_edit_ranges.iter().map(|range| {
8424 let position = Point::new(range.start.row, min_column);
8425 (position..position, first_prefix.clone())
8426 }));
8427 }
8428 } else if let Some((full_comment_prefix, comment_suffix)) =
8429 language.block_comment_delimiters()
8430 {
8431 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8432 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8433 let prefix_range = comment_prefix_range(
8434 snapshot.deref(),
8435 start_row,
8436 comment_prefix,
8437 comment_prefix_whitespace,
8438 );
8439 let suffix_range = comment_suffix_range(
8440 snapshot.deref(),
8441 end_row,
8442 comment_suffix.trim_start_matches(' '),
8443 comment_suffix.starts_with(' '),
8444 );
8445
8446 if prefix_range.is_empty() || suffix_range.is_empty() {
8447 edits.push((
8448 prefix_range.start..prefix_range.start,
8449 full_comment_prefix.clone(),
8450 ));
8451 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8452 suffixes_inserted.push((end_row, comment_suffix.len()));
8453 } else {
8454 edits.push((prefix_range, empty_str.clone()));
8455 edits.push((suffix_range, empty_str.clone()));
8456 }
8457 } else {
8458 continue;
8459 }
8460 }
8461
8462 drop(snapshot);
8463 this.buffer.update(cx, |buffer, cx| {
8464 buffer.edit(edits, None, cx);
8465 });
8466
8467 // Adjust selections so that they end before any comment suffixes that
8468 // were inserted.
8469 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8470 let mut selections = this.selections.all::<Point>(cx);
8471 let snapshot = this.buffer.read(cx).read(cx);
8472 for selection in &mut selections {
8473 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8474 match row.cmp(&MultiBufferRow(selection.end.row)) {
8475 Ordering::Less => {
8476 suffixes_inserted.next();
8477 continue;
8478 }
8479 Ordering::Greater => break,
8480 Ordering::Equal => {
8481 if selection.end.column == snapshot.line_len(row) {
8482 if selection.is_empty() {
8483 selection.start.column -= suffix_len as u32;
8484 }
8485 selection.end.column -= suffix_len as u32;
8486 }
8487 break;
8488 }
8489 }
8490 }
8491 }
8492
8493 drop(snapshot);
8494 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8495
8496 let selections = this.selections.all::<Point>(cx);
8497 let selections_on_single_row = selections.windows(2).all(|selections| {
8498 selections[0].start.row == selections[1].start.row
8499 && selections[0].end.row == selections[1].end.row
8500 && selections[0].start.row == selections[0].end.row
8501 });
8502 let selections_selecting = selections
8503 .iter()
8504 .any(|selection| selection.start != selection.end);
8505 let advance_downwards = action.advance_downwards
8506 && selections_on_single_row
8507 && !selections_selecting
8508 && !matches!(this.mode, EditorMode::SingleLine { .. });
8509
8510 if advance_downwards {
8511 let snapshot = this.buffer.read(cx).snapshot(cx);
8512
8513 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8514 s.move_cursors_with(|display_snapshot, display_point, _| {
8515 let mut point = display_point.to_point(display_snapshot);
8516 point.row += 1;
8517 point = snapshot.clip_point(point, Bias::Left);
8518 let display_point = point.to_display_point(display_snapshot);
8519 let goal = SelectionGoal::HorizontalPosition(
8520 display_snapshot
8521 .x_for_display_point(display_point, text_layout_details)
8522 .into(),
8523 );
8524 (display_point, goal)
8525 })
8526 });
8527 }
8528 });
8529 }
8530
8531 pub fn select_enclosing_symbol(
8532 &mut self,
8533 _: &SelectEnclosingSymbol,
8534 cx: &mut ViewContext<Self>,
8535 ) {
8536 let buffer = self.buffer.read(cx).snapshot(cx);
8537 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8538
8539 fn update_selection(
8540 selection: &Selection<usize>,
8541 buffer_snap: &MultiBufferSnapshot,
8542 ) -> Option<Selection<usize>> {
8543 let cursor = selection.head();
8544 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8545 for symbol in symbols.iter().rev() {
8546 let start = symbol.range.start.to_offset(buffer_snap);
8547 let end = symbol.range.end.to_offset(buffer_snap);
8548 let new_range = start..end;
8549 if start < selection.start || end > selection.end {
8550 return Some(Selection {
8551 id: selection.id,
8552 start: new_range.start,
8553 end: new_range.end,
8554 goal: SelectionGoal::None,
8555 reversed: selection.reversed,
8556 });
8557 }
8558 }
8559 None
8560 }
8561
8562 let mut selected_larger_symbol = false;
8563 let new_selections = old_selections
8564 .iter()
8565 .map(|selection| match update_selection(selection, &buffer) {
8566 Some(new_selection) => {
8567 if new_selection.range() != selection.range() {
8568 selected_larger_symbol = true;
8569 }
8570 new_selection
8571 }
8572 None => selection.clone(),
8573 })
8574 .collect::<Vec<_>>();
8575
8576 if selected_larger_symbol {
8577 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8578 s.select(new_selections);
8579 });
8580 }
8581 }
8582
8583 pub fn select_larger_syntax_node(
8584 &mut self,
8585 _: &SelectLargerSyntaxNode,
8586 cx: &mut ViewContext<Self>,
8587 ) {
8588 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8589 let buffer = self.buffer.read(cx).snapshot(cx);
8590 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8591
8592 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8593 let mut selected_larger_node = false;
8594 let new_selections = old_selections
8595 .iter()
8596 .map(|selection| {
8597 let old_range = selection.start..selection.end;
8598 let mut new_range = old_range.clone();
8599 while let Some(containing_range) =
8600 buffer.range_for_syntax_ancestor(new_range.clone())
8601 {
8602 new_range = containing_range;
8603 if !display_map.intersects_fold(new_range.start)
8604 && !display_map.intersects_fold(new_range.end)
8605 {
8606 break;
8607 }
8608 }
8609
8610 selected_larger_node |= new_range != old_range;
8611 Selection {
8612 id: selection.id,
8613 start: new_range.start,
8614 end: new_range.end,
8615 goal: SelectionGoal::None,
8616 reversed: selection.reversed,
8617 }
8618 })
8619 .collect::<Vec<_>>();
8620
8621 if selected_larger_node {
8622 stack.push(old_selections);
8623 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8624 s.select(new_selections);
8625 });
8626 }
8627 self.select_larger_syntax_node_stack = stack;
8628 }
8629
8630 pub fn select_smaller_syntax_node(
8631 &mut self,
8632 _: &SelectSmallerSyntaxNode,
8633 cx: &mut ViewContext<Self>,
8634 ) {
8635 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8636 if let Some(selections) = stack.pop() {
8637 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8638 s.select(selections.to_vec());
8639 });
8640 }
8641 self.select_larger_syntax_node_stack = stack;
8642 }
8643
8644 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8645 if !EditorSettings::get_global(cx).gutter.runnables {
8646 self.clear_tasks();
8647 return Task::ready(());
8648 }
8649 let project = self.project.clone();
8650 cx.spawn(|this, mut cx| async move {
8651 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8652 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8653 }) else {
8654 return;
8655 };
8656
8657 let Some(project) = project else {
8658 return;
8659 };
8660
8661 let hide_runnables = project
8662 .update(&mut cx, |project, cx| {
8663 // Do not display any test indicators in non-dev server remote projects.
8664 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8665 })
8666 .unwrap_or(true);
8667 if hide_runnables {
8668 return;
8669 }
8670 let new_rows =
8671 cx.background_executor()
8672 .spawn({
8673 let snapshot = display_snapshot.clone();
8674 async move {
8675 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8676 }
8677 })
8678 .await;
8679 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8680
8681 this.update(&mut cx, |this, _| {
8682 this.clear_tasks();
8683 for (key, value) in rows {
8684 this.insert_tasks(key, value);
8685 }
8686 })
8687 .ok();
8688 })
8689 }
8690 fn fetch_runnable_ranges(
8691 snapshot: &DisplaySnapshot,
8692 range: Range<Anchor>,
8693 ) -> Vec<language::RunnableRange> {
8694 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8695 }
8696
8697 fn runnable_rows(
8698 project: Model<Project>,
8699 snapshot: DisplaySnapshot,
8700 runnable_ranges: Vec<RunnableRange>,
8701 mut cx: AsyncWindowContext,
8702 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8703 runnable_ranges
8704 .into_iter()
8705 .filter_map(|mut runnable| {
8706 let tasks = cx
8707 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8708 .ok()?;
8709 if tasks.is_empty() {
8710 return None;
8711 }
8712
8713 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8714
8715 let row = snapshot
8716 .buffer_snapshot
8717 .buffer_line_for_row(MultiBufferRow(point.row))?
8718 .1
8719 .start
8720 .row;
8721
8722 let context_range =
8723 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8724 Some((
8725 (runnable.buffer_id, row),
8726 RunnableTasks {
8727 templates: tasks,
8728 offset: MultiBufferOffset(runnable.run_range.start),
8729 context_range,
8730 column: point.column,
8731 extra_variables: runnable.extra_captures,
8732 },
8733 ))
8734 })
8735 .collect()
8736 }
8737
8738 fn templates_with_tags(
8739 project: &Model<Project>,
8740 runnable: &mut Runnable,
8741 cx: &WindowContext<'_>,
8742 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8743 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8744 let (worktree_id, file) = project
8745 .buffer_for_id(runnable.buffer, cx)
8746 .and_then(|buffer| buffer.read(cx).file())
8747 .map(|file| (file.worktree_id(cx), file.clone()))
8748 .unzip();
8749
8750 (project.task_inventory().clone(), worktree_id, file)
8751 });
8752
8753 let inventory = inventory.read(cx);
8754 let tags = mem::take(&mut runnable.tags);
8755 let mut tags: Vec<_> = tags
8756 .into_iter()
8757 .flat_map(|tag| {
8758 let tag = tag.0.clone();
8759 inventory
8760 .list_tasks(
8761 file.clone(),
8762 Some(runnable.language.clone()),
8763 worktree_id,
8764 cx,
8765 )
8766 .into_iter()
8767 .filter(move |(_, template)| {
8768 template.tags.iter().any(|source_tag| source_tag == &tag)
8769 })
8770 })
8771 .sorted_by_key(|(kind, _)| kind.to_owned())
8772 .collect();
8773 if let Some((leading_tag_source, _)) = tags.first() {
8774 // Strongest source wins; if we have worktree tag binding, prefer that to
8775 // global and language bindings;
8776 // if we have a global binding, prefer that to language binding.
8777 let first_mismatch = tags
8778 .iter()
8779 .position(|(tag_source, _)| tag_source != leading_tag_source);
8780 if let Some(index) = first_mismatch {
8781 tags.truncate(index);
8782 }
8783 }
8784
8785 tags
8786 }
8787
8788 pub fn move_to_enclosing_bracket(
8789 &mut self,
8790 _: &MoveToEnclosingBracket,
8791 cx: &mut ViewContext<Self>,
8792 ) {
8793 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8794 s.move_offsets_with(|snapshot, selection| {
8795 let Some(enclosing_bracket_ranges) =
8796 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8797 else {
8798 return;
8799 };
8800
8801 let mut best_length = usize::MAX;
8802 let mut best_inside = false;
8803 let mut best_in_bracket_range = false;
8804 let mut best_destination = None;
8805 for (open, close) in enclosing_bracket_ranges {
8806 let close = close.to_inclusive();
8807 let length = close.end() - open.start;
8808 let inside = selection.start >= open.end && selection.end <= *close.start();
8809 let in_bracket_range = open.to_inclusive().contains(&selection.head())
8810 || close.contains(&selection.head());
8811
8812 // If best is next to a bracket and current isn't, skip
8813 if !in_bracket_range && best_in_bracket_range {
8814 continue;
8815 }
8816
8817 // Prefer smaller lengths unless best is inside and current isn't
8818 if length > best_length && (best_inside || !inside) {
8819 continue;
8820 }
8821
8822 best_length = length;
8823 best_inside = inside;
8824 best_in_bracket_range = in_bracket_range;
8825 best_destination = Some(
8826 if close.contains(&selection.start) && close.contains(&selection.end) {
8827 if inside {
8828 open.end
8829 } else {
8830 open.start
8831 }
8832 } else if inside {
8833 *close.start()
8834 } else {
8835 *close.end()
8836 },
8837 );
8838 }
8839
8840 if let Some(destination) = best_destination {
8841 selection.collapse_to(destination, SelectionGoal::None);
8842 }
8843 })
8844 });
8845 }
8846
8847 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
8848 self.end_selection(cx);
8849 self.selection_history.mode = SelectionHistoryMode::Undoing;
8850 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
8851 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8852 self.select_next_state = entry.select_next_state;
8853 self.select_prev_state = entry.select_prev_state;
8854 self.add_selections_state = entry.add_selections_state;
8855 self.request_autoscroll(Autoscroll::newest(), cx);
8856 }
8857 self.selection_history.mode = SelectionHistoryMode::Normal;
8858 }
8859
8860 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
8861 self.end_selection(cx);
8862 self.selection_history.mode = SelectionHistoryMode::Redoing;
8863 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
8864 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8865 self.select_next_state = entry.select_next_state;
8866 self.select_prev_state = entry.select_prev_state;
8867 self.add_selections_state = entry.add_selections_state;
8868 self.request_autoscroll(Autoscroll::newest(), cx);
8869 }
8870 self.selection_history.mode = SelectionHistoryMode::Normal;
8871 }
8872
8873 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
8874 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
8875 }
8876
8877 pub fn expand_excerpts_down(
8878 &mut self,
8879 action: &ExpandExcerptsDown,
8880 cx: &mut ViewContext<Self>,
8881 ) {
8882 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
8883 }
8884
8885 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
8886 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
8887 }
8888
8889 pub fn expand_excerpts_for_direction(
8890 &mut self,
8891 lines: u32,
8892 direction: ExpandExcerptDirection,
8893 cx: &mut ViewContext<Self>,
8894 ) {
8895 let selections = self.selections.disjoint_anchors();
8896
8897 let lines = if lines == 0 {
8898 EditorSettings::get_global(cx).expand_excerpt_lines
8899 } else {
8900 lines
8901 };
8902
8903 self.buffer.update(cx, |buffer, cx| {
8904 buffer.expand_excerpts(
8905 selections
8906 .iter()
8907 .map(|selection| selection.head().excerpt_id)
8908 .dedup(),
8909 lines,
8910 direction,
8911 cx,
8912 )
8913 })
8914 }
8915
8916 pub fn expand_excerpt(
8917 &mut self,
8918 excerpt: ExcerptId,
8919 direction: ExpandExcerptDirection,
8920 cx: &mut ViewContext<Self>,
8921 ) {
8922 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
8923 self.buffer.update(cx, |buffer, cx| {
8924 buffer.expand_excerpts([excerpt], lines, direction, cx)
8925 })
8926 }
8927
8928 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8929 self.go_to_diagnostic_impl(Direction::Next, cx)
8930 }
8931
8932 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8933 self.go_to_diagnostic_impl(Direction::Prev, cx)
8934 }
8935
8936 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8937 let buffer = self.buffer.read(cx).snapshot(cx);
8938 let selection = self.selections.newest::<usize>(cx);
8939
8940 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8941 if direction == Direction::Next {
8942 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8943 let (group_id, jump_to) = popover.activation_info();
8944 if self.activate_diagnostics(group_id, cx) {
8945 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8946 let mut new_selection = s.newest_anchor().clone();
8947 new_selection.collapse_to(jump_to, SelectionGoal::None);
8948 s.select_anchors(vec![new_selection.clone()]);
8949 });
8950 }
8951 return;
8952 }
8953 }
8954
8955 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8956 active_diagnostics
8957 .primary_range
8958 .to_offset(&buffer)
8959 .to_inclusive()
8960 });
8961 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8962 if active_primary_range.contains(&selection.head()) {
8963 *active_primary_range.start()
8964 } else {
8965 selection.head()
8966 }
8967 } else {
8968 selection.head()
8969 };
8970 let snapshot = self.snapshot(cx);
8971 loop {
8972 let diagnostics = if direction == Direction::Prev {
8973 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8974 } else {
8975 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8976 }
8977 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8978 let group = diagnostics
8979 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8980 // be sorted in a stable way
8981 // skip until we are at current active diagnostic, if it exists
8982 .skip_while(|entry| {
8983 (match direction {
8984 Direction::Prev => entry.range.start >= search_start,
8985 Direction::Next => entry.range.start <= search_start,
8986 }) && self
8987 .active_diagnostics
8988 .as_ref()
8989 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8990 })
8991 .find_map(|entry| {
8992 if entry.diagnostic.is_primary
8993 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8994 && !entry.range.is_empty()
8995 // if we match with the active diagnostic, skip it
8996 && Some(entry.diagnostic.group_id)
8997 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8998 {
8999 Some((entry.range, entry.diagnostic.group_id))
9000 } else {
9001 None
9002 }
9003 });
9004
9005 if let Some((primary_range, group_id)) = group {
9006 if self.activate_diagnostics(group_id, cx) {
9007 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9008 s.select(vec![Selection {
9009 id: selection.id,
9010 start: primary_range.start,
9011 end: primary_range.start,
9012 reversed: false,
9013 goal: SelectionGoal::None,
9014 }]);
9015 });
9016 }
9017 break;
9018 } else {
9019 // Cycle around to the start of the buffer, potentially moving back to the start of
9020 // the currently active diagnostic.
9021 active_primary_range.take();
9022 if direction == Direction::Prev {
9023 if search_start == buffer.len() {
9024 break;
9025 } else {
9026 search_start = buffer.len();
9027 }
9028 } else if search_start == 0 {
9029 break;
9030 } else {
9031 search_start = 0;
9032 }
9033 }
9034 }
9035 }
9036
9037 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9038 let snapshot = self
9039 .display_map
9040 .update(cx, |display_map, cx| display_map.snapshot(cx));
9041 let selection = self.selections.newest::<Point>(cx);
9042
9043 if !self.seek_in_direction(
9044 &snapshot,
9045 selection.head(),
9046 false,
9047 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9048 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
9049 ),
9050 cx,
9051 ) {
9052 let wrapped_point = Point::zero();
9053 self.seek_in_direction(
9054 &snapshot,
9055 wrapped_point,
9056 true,
9057 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9058 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9059 ),
9060 cx,
9061 );
9062 }
9063 }
9064
9065 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9066 let snapshot = self
9067 .display_map
9068 .update(cx, |display_map, cx| display_map.snapshot(cx));
9069 let selection = self.selections.newest::<Point>(cx);
9070
9071 if !self.seek_in_direction(
9072 &snapshot,
9073 selection.head(),
9074 false,
9075 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
9076 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
9077 ),
9078 cx,
9079 ) {
9080 let wrapped_point = snapshot.buffer_snapshot.max_point();
9081 self.seek_in_direction(
9082 &snapshot,
9083 wrapped_point,
9084 true,
9085 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
9086 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
9087 ),
9088 cx,
9089 );
9090 }
9091 }
9092
9093 fn seek_in_direction(
9094 &mut self,
9095 snapshot: &DisplaySnapshot,
9096 initial_point: Point,
9097 is_wrapped: bool,
9098 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
9099 cx: &mut ViewContext<Editor>,
9100 ) -> bool {
9101 let display_point = initial_point.to_display_point(snapshot);
9102 let mut hunks = hunks
9103 .map(|hunk| diff_hunk_to_display(&hunk, snapshot))
9104 .filter(|hunk| is_wrapped || !hunk.contains_display_row(display_point.row()))
9105 .dedup();
9106
9107 if let Some(hunk) = hunks.next() {
9108 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9109 let row = hunk.start_display_row();
9110 let point = DisplayPoint::new(row, 0);
9111 s.select_display_ranges([point..point]);
9112 });
9113
9114 true
9115 } else {
9116 false
9117 }
9118 }
9119
9120 pub fn go_to_definition(
9121 &mut self,
9122 _: &GoToDefinition,
9123 cx: &mut ViewContext<Self>,
9124 ) -> Task<Result<Navigated>> {
9125 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9126 cx.spawn(|editor, mut cx| async move {
9127 if definition.await? == Navigated::Yes {
9128 return Ok(Navigated::Yes);
9129 }
9130 match editor.update(&mut cx, |editor, cx| {
9131 editor.find_all_references(&FindAllReferences, cx)
9132 })? {
9133 Some(references) => references.await,
9134 None => Ok(Navigated::No),
9135 }
9136 })
9137 }
9138
9139 pub fn go_to_declaration(
9140 &mut self,
9141 _: &GoToDeclaration,
9142 cx: &mut ViewContext<Self>,
9143 ) -> Task<Result<Navigated>> {
9144 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9145 }
9146
9147 pub fn go_to_declaration_split(
9148 &mut self,
9149 _: &GoToDeclaration,
9150 cx: &mut ViewContext<Self>,
9151 ) -> Task<Result<Navigated>> {
9152 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9153 }
9154
9155 pub fn go_to_implementation(
9156 &mut self,
9157 _: &GoToImplementation,
9158 cx: &mut ViewContext<Self>,
9159 ) -> Task<Result<Navigated>> {
9160 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9161 }
9162
9163 pub fn go_to_implementation_split(
9164 &mut self,
9165 _: &GoToImplementationSplit,
9166 cx: &mut ViewContext<Self>,
9167 ) -> Task<Result<Navigated>> {
9168 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9169 }
9170
9171 pub fn go_to_type_definition(
9172 &mut self,
9173 _: &GoToTypeDefinition,
9174 cx: &mut ViewContext<Self>,
9175 ) -> Task<Result<Navigated>> {
9176 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9177 }
9178
9179 pub fn go_to_definition_split(
9180 &mut self,
9181 _: &GoToDefinitionSplit,
9182 cx: &mut ViewContext<Self>,
9183 ) -> Task<Result<Navigated>> {
9184 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9185 }
9186
9187 pub fn go_to_type_definition_split(
9188 &mut self,
9189 _: &GoToTypeDefinitionSplit,
9190 cx: &mut ViewContext<Self>,
9191 ) -> Task<Result<Navigated>> {
9192 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9193 }
9194
9195 fn go_to_definition_of_kind(
9196 &mut self,
9197 kind: GotoDefinitionKind,
9198 split: bool,
9199 cx: &mut ViewContext<Self>,
9200 ) -> Task<Result<Navigated>> {
9201 let Some(workspace) = self.workspace() else {
9202 return Task::ready(Ok(Navigated::No));
9203 };
9204 let buffer = self.buffer.read(cx);
9205 let head = self.selections.newest::<usize>(cx).head();
9206 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9207 text_anchor
9208 } else {
9209 return Task::ready(Ok(Navigated::No));
9210 };
9211
9212 let project = workspace.read(cx).project().clone();
9213 let definitions = project.update(cx, |project, cx| match kind {
9214 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
9215 GotoDefinitionKind::Declaration => project.declaration(&buffer, head, cx),
9216 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
9217 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
9218 });
9219
9220 cx.spawn(|editor, mut cx| async move {
9221 let definitions = definitions.await?;
9222 let navigated = editor
9223 .update(&mut cx, |editor, cx| {
9224 editor.navigate_to_hover_links(
9225 Some(kind),
9226 definitions
9227 .into_iter()
9228 .filter(|location| {
9229 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9230 })
9231 .map(HoverLink::Text)
9232 .collect::<Vec<_>>(),
9233 split,
9234 cx,
9235 )
9236 })?
9237 .await?;
9238 anyhow::Ok(navigated)
9239 })
9240 }
9241
9242 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9243 let position = self.selections.newest_anchor().head();
9244 let Some((buffer, buffer_position)) =
9245 self.buffer.read(cx).text_anchor_for_position(position, cx)
9246 else {
9247 return;
9248 };
9249
9250 cx.spawn(|editor, mut cx| async move {
9251 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9252 editor.update(&mut cx, |_, cx| {
9253 cx.open_url(&url);
9254 })
9255 } else {
9256 Ok(())
9257 }
9258 })
9259 .detach();
9260 }
9261
9262 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9263 let Some(workspace) = self.workspace() else {
9264 return;
9265 };
9266
9267 let position = self.selections.newest_anchor().head();
9268
9269 let Some((buffer, buffer_position)) =
9270 self.buffer.read(cx).text_anchor_for_position(position, cx)
9271 else {
9272 return;
9273 };
9274
9275 let Some(project) = self.project.clone() else {
9276 return;
9277 };
9278
9279 cx.spawn(|_, mut cx| async move {
9280 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9281
9282 if let Some((_, path)) = result {
9283 workspace
9284 .update(&mut cx, |workspace, cx| {
9285 workspace.open_resolved_path(path, cx)
9286 })?
9287 .await?;
9288 }
9289 anyhow::Ok(())
9290 })
9291 .detach();
9292 }
9293
9294 pub(crate) fn navigate_to_hover_links(
9295 &mut self,
9296 kind: Option<GotoDefinitionKind>,
9297 mut definitions: Vec<HoverLink>,
9298 split: bool,
9299 cx: &mut ViewContext<Editor>,
9300 ) -> Task<Result<Navigated>> {
9301 // If there is one definition, just open it directly
9302 if definitions.len() == 1 {
9303 let definition = definitions.pop().unwrap();
9304
9305 enum TargetTaskResult {
9306 Location(Option<Location>),
9307 AlreadyNavigated,
9308 }
9309
9310 let target_task = match definition {
9311 HoverLink::Text(link) => {
9312 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9313 }
9314 HoverLink::InlayHint(lsp_location, server_id) => {
9315 let computation = self.compute_target_location(lsp_location, server_id, cx);
9316 cx.background_executor().spawn(async move {
9317 let location = computation.await?;
9318 Ok(TargetTaskResult::Location(location))
9319 })
9320 }
9321 HoverLink::Url(url) => {
9322 cx.open_url(&url);
9323 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9324 }
9325 HoverLink::File(path) => {
9326 if let Some(workspace) = self.workspace() {
9327 cx.spawn(|_, mut cx| async move {
9328 workspace
9329 .update(&mut cx, |workspace, cx| {
9330 workspace.open_resolved_path(path, cx)
9331 })?
9332 .await
9333 .map(|_| TargetTaskResult::AlreadyNavigated)
9334 })
9335 } else {
9336 Task::ready(Ok(TargetTaskResult::Location(None)))
9337 }
9338 }
9339 };
9340 cx.spawn(|editor, mut cx| async move {
9341 let target = match target_task.await.context("target resolution task")? {
9342 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9343 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9344 TargetTaskResult::Location(Some(target)) => target,
9345 };
9346
9347 editor.update(&mut cx, |editor, cx| {
9348 let Some(workspace) = editor.workspace() else {
9349 return Navigated::No;
9350 };
9351 let pane = workspace.read(cx).active_pane().clone();
9352
9353 let range = target.range.to_offset(target.buffer.read(cx));
9354 let range = editor.range_for_match(&range);
9355
9356 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9357 let buffer = target.buffer.read(cx);
9358 let range = check_multiline_range(buffer, range);
9359 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
9360 s.select_ranges([range]);
9361 });
9362 } else {
9363 cx.window_context().defer(move |cx| {
9364 let target_editor: View<Self> =
9365 workspace.update(cx, |workspace, cx| {
9366 let pane = if split {
9367 workspace.adjacent_pane(cx)
9368 } else {
9369 workspace.active_pane().clone()
9370 };
9371
9372 workspace.open_project_item(
9373 pane,
9374 target.buffer.clone(),
9375 true,
9376 true,
9377 cx,
9378 )
9379 });
9380 target_editor.update(cx, |target_editor, cx| {
9381 // When selecting a definition in a different buffer, disable the nav history
9382 // to avoid creating a history entry at the previous cursor location.
9383 pane.update(cx, |pane, _| pane.disable_history());
9384 let buffer = target.buffer.read(cx);
9385 let range = check_multiline_range(buffer, range);
9386 target_editor.change_selections(
9387 Some(Autoscroll::focused()),
9388 cx,
9389 |s| {
9390 s.select_ranges([range]);
9391 },
9392 );
9393 pane.update(cx, |pane, _| pane.enable_history());
9394 });
9395 });
9396 }
9397 Navigated::Yes
9398 })
9399 })
9400 } else if !definitions.is_empty() {
9401 let replica_id = self.replica_id(cx);
9402 cx.spawn(|editor, mut cx| async move {
9403 let (title, location_tasks, workspace) = editor
9404 .update(&mut cx, |editor, cx| {
9405 let tab_kind = match kind {
9406 Some(GotoDefinitionKind::Implementation) => "Implementations",
9407 _ => "Definitions",
9408 };
9409 let title = definitions
9410 .iter()
9411 .find_map(|definition| match definition {
9412 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9413 let buffer = origin.buffer.read(cx);
9414 format!(
9415 "{} for {}",
9416 tab_kind,
9417 buffer
9418 .text_for_range(origin.range.clone())
9419 .collect::<String>()
9420 )
9421 }),
9422 HoverLink::InlayHint(_, _) => None,
9423 HoverLink::Url(_) => None,
9424 HoverLink::File(_) => None,
9425 })
9426 .unwrap_or(tab_kind.to_string());
9427 let location_tasks = definitions
9428 .into_iter()
9429 .map(|definition| match definition {
9430 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9431 HoverLink::InlayHint(lsp_location, server_id) => {
9432 editor.compute_target_location(lsp_location, server_id, cx)
9433 }
9434 HoverLink::Url(_) => Task::ready(Ok(None)),
9435 HoverLink::File(_) => Task::ready(Ok(None)),
9436 })
9437 .collect::<Vec<_>>();
9438 (title, location_tasks, editor.workspace().clone())
9439 })
9440 .context("location tasks preparation")?;
9441
9442 let locations = futures::future::join_all(location_tasks)
9443 .await
9444 .into_iter()
9445 .filter_map(|location| location.transpose())
9446 .collect::<Result<_>>()
9447 .context("location tasks")?;
9448
9449 let Some(workspace) = workspace else {
9450 return Ok(Navigated::No);
9451 };
9452 let opened = workspace
9453 .update(&mut cx, |workspace, cx| {
9454 Self::open_locations_in_multibuffer(
9455 workspace, locations, replica_id, title, split, cx,
9456 )
9457 })
9458 .ok();
9459
9460 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9461 })
9462 } else {
9463 Task::ready(Ok(Navigated::No))
9464 }
9465 }
9466
9467 fn compute_target_location(
9468 &self,
9469 lsp_location: lsp::Location,
9470 server_id: LanguageServerId,
9471 cx: &mut ViewContext<Editor>,
9472 ) -> Task<anyhow::Result<Option<Location>>> {
9473 let Some(project) = self.project.clone() else {
9474 return Task::Ready(Some(Ok(None)));
9475 };
9476
9477 cx.spawn(move |editor, mut cx| async move {
9478 let location_task = editor.update(&mut cx, |editor, cx| {
9479 project.update(cx, |project, cx| {
9480 let language_server_name =
9481 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
9482 project
9483 .language_server_for_buffer(buffer.read(cx), server_id, cx)
9484 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
9485 });
9486 language_server_name.map(|language_server_name| {
9487 project.open_local_buffer_via_lsp(
9488 lsp_location.uri.clone(),
9489 server_id,
9490 language_server_name,
9491 cx,
9492 )
9493 })
9494 })
9495 })?;
9496 let location = match location_task {
9497 Some(task) => Some({
9498 let target_buffer_handle = task.await.context("open local buffer")?;
9499 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9500 let target_start = target_buffer
9501 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9502 let target_end = target_buffer
9503 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9504 target_buffer.anchor_after(target_start)
9505 ..target_buffer.anchor_before(target_end)
9506 })?;
9507 Location {
9508 buffer: target_buffer_handle,
9509 range,
9510 }
9511 }),
9512 None => None,
9513 };
9514 Ok(location)
9515 })
9516 }
9517
9518 pub fn find_all_references(
9519 &mut self,
9520 _: &FindAllReferences,
9521 cx: &mut ViewContext<Self>,
9522 ) -> Option<Task<Result<Navigated>>> {
9523 let multi_buffer = self.buffer.read(cx);
9524 let selection = self.selections.newest::<usize>(cx);
9525 let head = selection.head();
9526
9527 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9528 let head_anchor = multi_buffer_snapshot.anchor_at(
9529 head,
9530 if head < selection.tail() {
9531 Bias::Right
9532 } else {
9533 Bias::Left
9534 },
9535 );
9536
9537 match self
9538 .find_all_references_task_sources
9539 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9540 {
9541 Ok(_) => {
9542 log::info!(
9543 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9544 );
9545 return None;
9546 }
9547 Err(i) => {
9548 self.find_all_references_task_sources.insert(i, head_anchor);
9549 }
9550 }
9551
9552 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9553 let replica_id = self.replica_id(cx);
9554 let workspace = self.workspace()?;
9555 let project = workspace.read(cx).project().clone();
9556 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9557 Some(cx.spawn(|editor, mut cx| async move {
9558 let _cleanup = defer({
9559 let mut cx = cx.clone();
9560 move || {
9561 let _ = editor.update(&mut cx, |editor, _| {
9562 if let Ok(i) =
9563 editor
9564 .find_all_references_task_sources
9565 .binary_search_by(|anchor| {
9566 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9567 })
9568 {
9569 editor.find_all_references_task_sources.remove(i);
9570 }
9571 });
9572 }
9573 });
9574
9575 let locations = references.await?;
9576 if locations.is_empty() {
9577 return anyhow::Ok(Navigated::No);
9578 }
9579
9580 workspace.update(&mut cx, |workspace, cx| {
9581 let title = locations
9582 .first()
9583 .as_ref()
9584 .map(|location| {
9585 let buffer = location.buffer.read(cx);
9586 format!(
9587 "References to `{}`",
9588 buffer
9589 .text_for_range(location.range.clone())
9590 .collect::<String>()
9591 )
9592 })
9593 .unwrap();
9594 Self::open_locations_in_multibuffer(
9595 workspace, locations, replica_id, title, false, cx,
9596 );
9597 Navigated::Yes
9598 })
9599 }))
9600 }
9601
9602 /// Opens a multibuffer with the given project locations in it
9603 pub fn open_locations_in_multibuffer(
9604 workspace: &mut Workspace,
9605 mut locations: Vec<Location>,
9606 replica_id: ReplicaId,
9607 title: String,
9608 split: bool,
9609 cx: &mut ViewContext<Workspace>,
9610 ) {
9611 // If there are multiple definitions, open them in a multibuffer
9612 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9613 let mut locations = locations.into_iter().peekable();
9614 let mut ranges_to_highlight = Vec::new();
9615 let capability = workspace.project().read(cx).capability();
9616
9617 let excerpt_buffer = cx.new_model(|cx| {
9618 let mut multibuffer = MultiBuffer::new(replica_id, capability);
9619 while let Some(location) = locations.next() {
9620 let buffer = location.buffer.read(cx);
9621 let mut ranges_for_buffer = Vec::new();
9622 let range = location.range.to_offset(buffer);
9623 ranges_for_buffer.push(range.clone());
9624
9625 while let Some(next_location) = locations.peek() {
9626 if next_location.buffer == location.buffer {
9627 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9628 locations.next();
9629 } else {
9630 break;
9631 }
9632 }
9633
9634 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9635 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9636 location.buffer.clone(),
9637 ranges_for_buffer,
9638 DEFAULT_MULTIBUFFER_CONTEXT,
9639 cx,
9640 ))
9641 }
9642
9643 multibuffer.with_title(title)
9644 });
9645
9646 let editor = cx.new_view(|cx| {
9647 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9648 });
9649 editor.update(cx, |editor, cx| {
9650 if let Some(first_range) = ranges_to_highlight.first() {
9651 editor.change_selections(None, cx, |selections| {
9652 selections.clear_disjoint();
9653 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9654 });
9655 }
9656 editor.highlight_background::<Self>(
9657 &ranges_to_highlight,
9658 |theme| theme.editor_highlighted_line_background,
9659 cx,
9660 );
9661 });
9662
9663 let item = Box::new(editor);
9664 let item_id = item.item_id();
9665
9666 if split {
9667 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9668 } else {
9669 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9670 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9671 pane.close_current_preview_item(cx)
9672 } else {
9673 None
9674 }
9675 });
9676 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9677 }
9678 workspace.active_pane().update(cx, |pane, cx| {
9679 pane.set_preview_item_id(Some(item_id), cx);
9680 });
9681 }
9682
9683 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9684 use language::ToOffset as _;
9685
9686 let project = self.project.clone()?;
9687 let selection = self.selections.newest_anchor().clone();
9688 let (cursor_buffer, cursor_buffer_position) = self
9689 .buffer
9690 .read(cx)
9691 .text_anchor_for_position(selection.head(), cx)?;
9692 let (tail_buffer, cursor_buffer_position_end) = self
9693 .buffer
9694 .read(cx)
9695 .text_anchor_for_position(selection.tail(), cx)?;
9696 if tail_buffer != cursor_buffer {
9697 return None;
9698 }
9699
9700 let snapshot = cursor_buffer.read(cx).snapshot();
9701 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9702 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9703 let prepare_rename = project.update(cx, |project, cx| {
9704 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
9705 });
9706 drop(snapshot);
9707
9708 Some(cx.spawn(|this, mut cx| async move {
9709 let rename_range = if let Some(range) = prepare_rename.await? {
9710 Some(range)
9711 } else {
9712 this.update(&mut cx, |this, cx| {
9713 let buffer = this.buffer.read(cx).snapshot(cx);
9714 let mut buffer_highlights = this
9715 .document_highlights_for_position(selection.head(), &buffer)
9716 .filter(|highlight| {
9717 highlight.start.excerpt_id == selection.head().excerpt_id
9718 && highlight.end.excerpt_id == selection.head().excerpt_id
9719 });
9720 buffer_highlights
9721 .next()
9722 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9723 })?
9724 };
9725 if let Some(rename_range) = rename_range {
9726 this.update(&mut cx, |this, cx| {
9727 let snapshot = cursor_buffer.read(cx).snapshot();
9728 let rename_buffer_range = rename_range.to_offset(&snapshot);
9729 let cursor_offset_in_rename_range =
9730 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9731 let cursor_offset_in_rename_range_end =
9732 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9733
9734 this.take_rename(false, cx);
9735 let buffer = this.buffer.read(cx).read(cx);
9736 let cursor_offset = selection.head().to_offset(&buffer);
9737 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9738 let rename_end = rename_start + rename_buffer_range.len();
9739 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9740 let mut old_highlight_id = None;
9741 let old_name: Arc<str> = buffer
9742 .chunks(rename_start..rename_end, true)
9743 .map(|chunk| {
9744 if old_highlight_id.is_none() {
9745 old_highlight_id = chunk.syntax_highlight_id;
9746 }
9747 chunk.text
9748 })
9749 .collect::<String>()
9750 .into();
9751
9752 drop(buffer);
9753
9754 // Position the selection in the rename editor so that it matches the current selection.
9755 this.show_local_selections = false;
9756 let rename_editor = cx.new_view(|cx| {
9757 let mut editor = Editor::single_line(cx);
9758 editor.buffer.update(cx, |buffer, cx| {
9759 buffer.edit([(0..0, old_name.clone())], None, cx)
9760 });
9761 let rename_selection_range = match cursor_offset_in_rename_range
9762 .cmp(&cursor_offset_in_rename_range_end)
9763 {
9764 Ordering::Equal => {
9765 editor.select_all(&SelectAll, cx);
9766 return editor;
9767 }
9768 Ordering::Less => {
9769 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
9770 }
9771 Ordering::Greater => {
9772 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
9773 }
9774 };
9775 if rename_selection_range.end > old_name.len() {
9776 editor.select_all(&SelectAll, cx);
9777 } else {
9778 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9779 s.select_ranges([rename_selection_range]);
9780 });
9781 }
9782 editor
9783 });
9784 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
9785 if e == &EditorEvent::Focused {
9786 cx.emit(EditorEvent::FocusedIn)
9787 }
9788 })
9789 .detach();
9790
9791 let write_highlights =
9792 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
9793 let read_highlights =
9794 this.clear_background_highlights::<DocumentHighlightRead>(cx);
9795 let ranges = write_highlights
9796 .iter()
9797 .flat_map(|(_, ranges)| ranges.iter())
9798 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
9799 .cloned()
9800 .collect();
9801
9802 this.highlight_text::<Rename>(
9803 ranges,
9804 HighlightStyle {
9805 fade_out: Some(0.6),
9806 ..Default::default()
9807 },
9808 cx,
9809 );
9810 let rename_focus_handle = rename_editor.focus_handle(cx);
9811 cx.focus(&rename_focus_handle);
9812 let block_id = this.insert_blocks(
9813 [BlockProperties {
9814 style: BlockStyle::Flex,
9815 position: range.start,
9816 height: 1,
9817 render: Box::new({
9818 let rename_editor = rename_editor.clone();
9819 move |cx: &mut BlockContext| {
9820 let mut text_style = cx.editor_style.text.clone();
9821 if let Some(highlight_style) = old_highlight_id
9822 .and_then(|h| h.style(&cx.editor_style.syntax))
9823 {
9824 text_style = text_style.highlight(highlight_style);
9825 }
9826 div()
9827 .pl(cx.anchor_x)
9828 .child(EditorElement::new(
9829 &rename_editor,
9830 EditorStyle {
9831 background: cx.theme().system().transparent,
9832 local_player: cx.editor_style.local_player,
9833 text: text_style,
9834 scrollbar_width: cx.editor_style.scrollbar_width,
9835 syntax: cx.editor_style.syntax.clone(),
9836 status: cx.editor_style.status.clone(),
9837 inlay_hints_style: HighlightStyle {
9838 color: Some(cx.theme().status().hint),
9839 font_weight: Some(FontWeight::BOLD),
9840 ..HighlightStyle::default()
9841 },
9842 suggestions_style: HighlightStyle {
9843 color: Some(cx.theme().status().predictive),
9844 ..HighlightStyle::default()
9845 },
9846 ..EditorStyle::default()
9847 },
9848 ))
9849 .into_any_element()
9850 }
9851 }),
9852 disposition: BlockDisposition::Below,
9853 priority: 0,
9854 }],
9855 Some(Autoscroll::fit()),
9856 cx,
9857 )[0];
9858 this.pending_rename = Some(RenameState {
9859 range,
9860 old_name,
9861 editor: rename_editor,
9862 block_id,
9863 });
9864 })?;
9865 }
9866
9867 Ok(())
9868 }))
9869 }
9870
9871 pub fn confirm_rename(
9872 &mut self,
9873 _: &ConfirmRename,
9874 cx: &mut ViewContext<Self>,
9875 ) -> Option<Task<Result<()>>> {
9876 let rename = self.take_rename(false, cx)?;
9877 let workspace = self.workspace()?;
9878 let (start_buffer, start) = self
9879 .buffer
9880 .read(cx)
9881 .text_anchor_for_position(rename.range.start, cx)?;
9882 let (end_buffer, end) = self
9883 .buffer
9884 .read(cx)
9885 .text_anchor_for_position(rename.range.end, cx)?;
9886 if start_buffer != end_buffer {
9887 return None;
9888 }
9889
9890 let buffer = start_buffer;
9891 let range = start..end;
9892 let old_name = rename.old_name;
9893 let new_name = rename.editor.read(cx).text(cx);
9894
9895 let rename = workspace
9896 .read(cx)
9897 .project()
9898 .clone()
9899 .update(cx, |project, cx| {
9900 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
9901 });
9902 let workspace = workspace.downgrade();
9903
9904 Some(cx.spawn(|editor, mut cx| async move {
9905 let project_transaction = rename.await?;
9906 Self::open_project_transaction(
9907 &editor,
9908 workspace,
9909 project_transaction,
9910 format!("Rename: {} → {}", old_name, new_name),
9911 cx.clone(),
9912 )
9913 .await?;
9914
9915 editor.update(&mut cx, |editor, cx| {
9916 editor.refresh_document_highlights(cx);
9917 })?;
9918 Ok(())
9919 }))
9920 }
9921
9922 fn take_rename(
9923 &mut self,
9924 moving_cursor: bool,
9925 cx: &mut ViewContext<Self>,
9926 ) -> Option<RenameState> {
9927 let rename = self.pending_rename.take()?;
9928 if rename.editor.focus_handle(cx).is_focused(cx) {
9929 cx.focus(&self.focus_handle);
9930 }
9931
9932 self.remove_blocks(
9933 [rename.block_id].into_iter().collect(),
9934 Some(Autoscroll::fit()),
9935 cx,
9936 );
9937 self.clear_highlights::<Rename>(cx);
9938 self.show_local_selections = true;
9939
9940 if moving_cursor {
9941 let rename_editor = rename.editor.read(cx);
9942 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
9943
9944 // Update the selection to match the position of the selection inside
9945 // the rename editor.
9946 let snapshot = self.buffer.read(cx).read(cx);
9947 let rename_range = rename.range.to_offset(&snapshot);
9948 let cursor_in_editor = snapshot
9949 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
9950 .min(rename_range.end);
9951 drop(snapshot);
9952
9953 self.change_selections(None, cx, |s| {
9954 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
9955 });
9956 } else {
9957 self.refresh_document_highlights(cx);
9958 }
9959
9960 Some(rename)
9961 }
9962
9963 pub fn pending_rename(&self) -> Option<&RenameState> {
9964 self.pending_rename.as_ref()
9965 }
9966
9967 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9968 let project = match &self.project {
9969 Some(project) => project.clone(),
9970 None => return None,
9971 };
9972
9973 Some(self.perform_format(project, FormatTrigger::Manual, cx))
9974 }
9975
9976 fn perform_format(
9977 &mut self,
9978 project: Model<Project>,
9979 trigger: FormatTrigger,
9980 cx: &mut ViewContext<Self>,
9981 ) -> Task<Result<()>> {
9982 let buffer = self.buffer().clone();
9983 let mut buffers = buffer.read(cx).all_buffers();
9984 if trigger == FormatTrigger::Save {
9985 buffers.retain(|buffer| buffer.read(cx).is_dirty());
9986 }
9987
9988 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
9989 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
9990
9991 cx.spawn(|_, mut cx| async move {
9992 let transaction = futures::select_biased! {
9993 () = timeout => {
9994 log::warn!("timed out waiting for formatting");
9995 None
9996 }
9997 transaction = format.log_err().fuse() => transaction,
9998 };
9999
10000 buffer
10001 .update(&mut cx, |buffer, cx| {
10002 if let Some(transaction) = transaction {
10003 if !buffer.is_singleton() {
10004 buffer.push_transaction(&transaction.0, cx);
10005 }
10006 }
10007
10008 cx.notify();
10009 })
10010 .ok();
10011
10012 Ok(())
10013 })
10014 }
10015
10016 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10017 if let Some(project) = self.project.clone() {
10018 self.buffer.update(cx, |multi_buffer, cx| {
10019 project.update(cx, |project, cx| {
10020 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10021 });
10022 })
10023 }
10024 }
10025
10026 fn cancel_language_server_work(
10027 &mut self,
10028 _: &CancelLanguageServerWork,
10029 cx: &mut ViewContext<Self>,
10030 ) {
10031 if let Some(project) = self.project.clone() {
10032 self.buffer.update(cx, |multi_buffer, cx| {
10033 project.update(cx, |project, cx| {
10034 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10035 });
10036 })
10037 }
10038 }
10039
10040 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10041 cx.show_character_palette();
10042 }
10043
10044 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10045 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10046 let buffer = self.buffer.read(cx).snapshot(cx);
10047 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10048 let is_valid = buffer
10049 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10050 .any(|entry| {
10051 entry.diagnostic.is_primary
10052 && !entry.range.is_empty()
10053 && entry.range.start == primary_range_start
10054 && entry.diagnostic.message == active_diagnostics.primary_message
10055 });
10056
10057 if is_valid != active_diagnostics.is_valid {
10058 active_diagnostics.is_valid = is_valid;
10059 let mut new_styles = HashMap::default();
10060 for (block_id, diagnostic) in &active_diagnostics.blocks {
10061 new_styles.insert(
10062 *block_id,
10063 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10064 );
10065 }
10066 self.display_map.update(cx, |display_map, _cx| {
10067 display_map.replace_blocks(new_styles)
10068 });
10069 }
10070 }
10071 }
10072
10073 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10074 self.dismiss_diagnostics(cx);
10075 let snapshot = self.snapshot(cx);
10076 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10077 let buffer = self.buffer.read(cx).snapshot(cx);
10078
10079 let mut primary_range = None;
10080 let mut primary_message = None;
10081 let mut group_end = Point::zero();
10082 let diagnostic_group = buffer
10083 .diagnostic_group::<MultiBufferPoint>(group_id)
10084 .filter_map(|entry| {
10085 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10086 && (entry.range.start.row == entry.range.end.row
10087 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10088 {
10089 return None;
10090 }
10091 if entry.range.end > group_end {
10092 group_end = entry.range.end;
10093 }
10094 if entry.diagnostic.is_primary {
10095 primary_range = Some(entry.range.clone());
10096 primary_message = Some(entry.diagnostic.message.clone());
10097 }
10098 Some(entry)
10099 })
10100 .collect::<Vec<_>>();
10101 let primary_range = primary_range?;
10102 let primary_message = primary_message?;
10103 let primary_range =
10104 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10105
10106 let blocks = display_map
10107 .insert_blocks(
10108 diagnostic_group.iter().map(|entry| {
10109 let diagnostic = entry.diagnostic.clone();
10110 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10111 BlockProperties {
10112 style: BlockStyle::Fixed,
10113 position: buffer.anchor_after(entry.range.start),
10114 height: message_height,
10115 render: diagnostic_block_renderer(diagnostic, None, true, true),
10116 disposition: BlockDisposition::Below,
10117 priority: 0,
10118 }
10119 }),
10120 cx,
10121 )
10122 .into_iter()
10123 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10124 .collect();
10125
10126 Some(ActiveDiagnosticGroup {
10127 primary_range,
10128 primary_message,
10129 group_id,
10130 blocks,
10131 is_valid: true,
10132 })
10133 });
10134 self.active_diagnostics.is_some()
10135 }
10136
10137 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10138 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10139 self.display_map.update(cx, |display_map, cx| {
10140 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10141 });
10142 cx.notify();
10143 }
10144 }
10145
10146 pub fn set_selections_from_remote(
10147 &mut self,
10148 selections: Vec<Selection<Anchor>>,
10149 pending_selection: Option<Selection<Anchor>>,
10150 cx: &mut ViewContext<Self>,
10151 ) {
10152 let old_cursor_position = self.selections.newest_anchor().head();
10153 self.selections.change_with(cx, |s| {
10154 s.select_anchors(selections);
10155 if let Some(pending_selection) = pending_selection {
10156 s.set_pending(pending_selection, SelectMode::Character);
10157 } else {
10158 s.clear_pending();
10159 }
10160 });
10161 self.selections_did_change(false, &old_cursor_position, true, cx);
10162 }
10163
10164 fn push_to_selection_history(&mut self) {
10165 self.selection_history.push(SelectionHistoryEntry {
10166 selections: self.selections.disjoint_anchors(),
10167 select_next_state: self.select_next_state.clone(),
10168 select_prev_state: self.select_prev_state.clone(),
10169 add_selections_state: self.add_selections_state.clone(),
10170 });
10171 }
10172
10173 pub fn transact(
10174 &mut self,
10175 cx: &mut ViewContext<Self>,
10176 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10177 ) -> Option<TransactionId> {
10178 self.start_transaction_at(Instant::now(), cx);
10179 update(self, cx);
10180 self.end_transaction_at(Instant::now(), cx)
10181 }
10182
10183 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10184 self.end_selection(cx);
10185 if let Some(tx_id) = self
10186 .buffer
10187 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10188 {
10189 self.selection_history
10190 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10191 cx.emit(EditorEvent::TransactionBegun {
10192 transaction_id: tx_id,
10193 })
10194 }
10195 }
10196
10197 fn end_transaction_at(
10198 &mut self,
10199 now: Instant,
10200 cx: &mut ViewContext<Self>,
10201 ) -> Option<TransactionId> {
10202 if let Some(transaction_id) = self
10203 .buffer
10204 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10205 {
10206 if let Some((_, end_selections)) =
10207 self.selection_history.transaction_mut(transaction_id)
10208 {
10209 *end_selections = Some(self.selections.disjoint_anchors());
10210 } else {
10211 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10212 }
10213
10214 cx.emit(EditorEvent::Edited { transaction_id });
10215 Some(transaction_id)
10216 } else {
10217 None
10218 }
10219 }
10220
10221 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10222 let mut fold_ranges = Vec::new();
10223
10224 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10225
10226 let selections = self.selections.all_adjusted(cx);
10227 for selection in selections {
10228 let range = selection.range().sorted();
10229 let buffer_start_row = range.start.row;
10230
10231 for row in (0..=range.end.row).rev() {
10232 if let Some((foldable_range, fold_text)) =
10233 display_map.foldable_range(MultiBufferRow(row))
10234 {
10235 if foldable_range.end.row >= buffer_start_row {
10236 fold_ranges.push((foldable_range, fold_text));
10237 if row <= range.start.row {
10238 break;
10239 }
10240 }
10241 }
10242 }
10243 }
10244
10245 self.fold_ranges(fold_ranges, true, cx);
10246 }
10247
10248 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10249 let buffer_row = fold_at.buffer_row;
10250 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10251
10252 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
10253 let autoscroll = self
10254 .selections
10255 .all::<Point>(cx)
10256 .iter()
10257 .any(|selection| fold_range.overlaps(&selection.range()));
10258
10259 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
10260 }
10261 }
10262
10263 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10264 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10265 let buffer = &display_map.buffer_snapshot;
10266 let selections = self.selections.all::<Point>(cx);
10267 let ranges = selections
10268 .iter()
10269 .map(|s| {
10270 let range = s.display_range(&display_map).sorted();
10271 let mut start = range.start.to_point(&display_map);
10272 let mut end = range.end.to_point(&display_map);
10273 start.column = 0;
10274 end.column = buffer.line_len(MultiBufferRow(end.row));
10275 start..end
10276 })
10277 .collect::<Vec<_>>();
10278
10279 self.unfold_ranges(ranges, true, true, cx);
10280 }
10281
10282 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10283 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10284
10285 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10286 ..Point::new(
10287 unfold_at.buffer_row.0,
10288 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10289 );
10290
10291 let autoscroll = self
10292 .selections
10293 .all::<Point>(cx)
10294 .iter()
10295 .any(|selection| selection.range().overlaps(&intersection_range));
10296
10297 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
10298 }
10299
10300 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10301 let selections = self.selections.all::<Point>(cx);
10302 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10303 let line_mode = self.selections.line_mode;
10304 let ranges = selections.into_iter().map(|s| {
10305 if line_mode {
10306 let start = Point::new(s.start.row, 0);
10307 let end = Point::new(
10308 s.end.row,
10309 display_map
10310 .buffer_snapshot
10311 .line_len(MultiBufferRow(s.end.row)),
10312 );
10313 (start..end, display_map.fold_placeholder.clone())
10314 } else {
10315 (s.start..s.end, display_map.fold_placeholder.clone())
10316 }
10317 });
10318 self.fold_ranges(ranges, true, cx);
10319 }
10320
10321 pub fn fold_ranges<T: ToOffset + Clone>(
10322 &mut self,
10323 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
10324 auto_scroll: bool,
10325 cx: &mut ViewContext<Self>,
10326 ) {
10327 let mut fold_ranges = Vec::new();
10328 let mut buffers_affected = HashMap::default();
10329 let multi_buffer = self.buffer().read(cx);
10330 for (fold_range, fold_text) in ranges {
10331 if let Some((_, buffer, _)) =
10332 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
10333 {
10334 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10335 };
10336 fold_ranges.push((fold_range, fold_text));
10337 }
10338
10339 let mut ranges = fold_ranges.into_iter().peekable();
10340 if ranges.peek().is_some() {
10341 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
10342
10343 if auto_scroll {
10344 self.request_autoscroll(Autoscroll::fit(), cx);
10345 }
10346
10347 for buffer in buffers_affected.into_values() {
10348 self.sync_expanded_diff_hunks(buffer, cx);
10349 }
10350
10351 cx.notify();
10352
10353 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10354 // Clear diagnostics block when folding a range that contains it.
10355 let snapshot = self.snapshot(cx);
10356 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10357 drop(snapshot);
10358 self.active_diagnostics = Some(active_diagnostics);
10359 self.dismiss_diagnostics(cx);
10360 } else {
10361 self.active_diagnostics = Some(active_diagnostics);
10362 }
10363 }
10364
10365 self.scrollbar_marker_state.dirty = true;
10366 }
10367 }
10368
10369 pub fn unfold_ranges<T: ToOffset + Clone>(
10370 &mut self,
10371 ranges: impl IntoIterator<Item = Range<T>>,
10372 inclusive: bool,
10373 auto_scroll: bool,
10374 cx: &mut ViewContext<Self>,
10375 ) {
10376 let mut unfold_ranges = Vec::new();
10377 let mut buffers_affected = HashMap::default();
10378 let multi_buffer = self.buffer().read(cx);
10379 for range in ranges {
10380 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10381 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10382 };
10383 unfold_ranges.push(range);
10384 }
10385
10386 let mut ranges = unfold_ranges.into_iter().peekable();
10387 if ranges.peek().is_some() {
10388 self.display_map
10389 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
10390 if auto_scroll {
10391 self.request_autoscroll(Autoscroll::fit(), cx);
10392 }
10393
10394 for buffer in buffers_affected.into_values() {
10395 self.sync_expanded_diff_hunks(buffer, cx);
10396 }
10397
10398 cx.notify();
10399 self.scrollbar_marker_state.dirty = true;
10400 self.active_indent_guides_state.dirty = true;
10401 }
10402 }
10403
10404 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
10405 self.display_map.read(cx).fold_placeholder.clone()
10406 }
10407
10408 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10409 if hovered != self.gutter_hovered {
10410 self.gutter_hovered = hovered;
10411 cx.notify();
10412 }
10413 }
10414
10415 pub fn insert_blocks(
10416 &mut self,
10417 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
10418 autoscroll: Option<Autoscroll>,
10419 cx: &mut ViewContext<Self>,
10420 ) -> Vec<CustomBlockId> {
10421 let blocks = self
10422 .display_map
10423 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
10424 if let Some(autoscroll) = autoscroll {
10425 self.request_autoscroll(autoscroll, cx);
10426 }
10427 cx.notify();
10428 blocks
10429 }
10430
10431 pub fn resize_blocks(
10432 &mut self,
10433 heights: HashMap<CustomBlockId, u32>,
10434 autoscroll: Option<Autoscroll>,
10435 cx: &mut ViewContext<Self>,
10436 ) {
10437 self.display_map
10438 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
10439 if let Some(autoscroll) = autoscroll {
10440 self.request_autoscroll(autoscroll, cx);
10441 }
10442 cx.notify();
10443 }
10444
10445 pub fn replace_blocks(
10446 &mut self,
10447 renderers: HashMap<CustomBlockId, RenderBlock>,
10448 autoscroll: Option<Autoscroll>,
10449 cx: &mut ViewContext<Self>,
10450 ) {
10451 self.display_map
10452 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
10453 if let Some(autoscroll) = autoscroll {
10454 self.request_autoscroll(autoscroll, cx);
10455 }
10456 cx.notify();
10457 }
10458
10459 pub fn remove_blocks(
10460 &mut self,
10461 block_ids: HashSet<CustomBlockId>,
10462 autoscroll: Option<Autoscroll>,
10463 cx: &mut ViewContext<Self>,
10464 ) {
10465 self.display_map.update(cx, |display_map, cx| {
10466 display_map.remove_blocks(block_ids, cx)
10467 });
10468 if let Some(autoscroll) = autoscroll {
10469 self.request_autoscroll(autoscroll, cx);
10470 }
10471 cx.notify();
10472 }
10473
10474 pub fn row_for_block(
10475 &self,
10476 block_id: CustomBlockId,
10477 cx: &mut ViewContext<Self>,
10478 ) -> Option<DisplayRow> {
10479 self.display_map
10480 .update(cx, |map, cx| map.row_for_block(block_id, cx))
10481 }
10482
10483 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
10484 self.focused_block = Some(focused_block);
10485 }
10486
10487 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
10488 self.focused_block.take()
10489 }
10490
10491 pub fn insert_creases(
10492 &mut self,
10493 creases: impl IntoIterator<Item = Crease>,
10494 cx: &mut ViewContext<Self>,
10495 ) -> Vec<CreaseId> {
10496 self.display_map
10497 .update(cx, |map, cx| map.insert_creases(creases, cx))
10498 }
10499
10500 pub fn remove_creases(
10501 &mut self,
10502 ids: impl IntoIterator<Item = CreaseId>,
10503 cx: &mut ViewContext<Self>,
10504 ) {
10505 self.display_map
10506 .update(cx, |map, cx| map.remove_creases(ids, cx));
10507 }
10508
10509 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
10510 self.display_map
10511 .update(cx, |map, cx| map.snapshot(cx))
10512 .longest_row()
10513 }
10514
10515 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
10516 self.display_map
10517 .update(cx, |map, cx| map.snapshot(cx))
10518 .max_point()
10519 }
10520
10521 pub fn text(&self, cx: &AppContext) -> String {
10522 self.buffer.read(cx).read(cx).text()
10523 }
10524
10525 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
10526 let text = self.text(cx);
10527 let text = text.trim();
10528
10529 if text.is_empty() {
10530 return None;
10531 }
10532
10533 Some(text.to_string())
10534 }
10535
10536 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
10537 self.transact(cx, |this, cx| {
10538 this.buffer
10539 .read(cx)
10540 .as_singleton()
10541 .expect("you can only call set_text on editors for singleton buffers")
10542 .update(cx, |buffer, cx| buffer.set_text(text, cx));
10543 });
10544 }
10545
10546 pub fn display_text(&self, cx: &mut AppContext) -> String {
10547 self.display_map
10548 .update(cx, |map, cx| map.snapshot(cx))
10549 .text()
10550 }
10551
10552 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
10553 let mut wrap_guides = smallvec::smallvec![];
10554
10555 if self.show_wrap_guides == Some(false) {
10556 return wrap_guides;
10557 }
10558
10559 let settings = self.buffer.read(cx).settings_at(0, cx);
10560 if settings.show_wrap_guides {
10561 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
10562 wrap_guides.push((soft_wrap as usize, true));
10563 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
10564 wrap_guides.push((soft_wrap as usize, true));
10565 }
10566 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
10567 }
10568
10569 wrap_guides
10570 }
10571
10572 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
10573 let settings = self.buffer.read(cx).settings_at(0, cx);
10574 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
10575 match mode {
10576 language_settings::SoftWrap::None => SoftWrap::None,
10577 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
10578 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
10579 language_settings::SoftWrap::PreferredLineLength => {
10580 SoftWrap::Column(settings.preferred_line_length)
10581 }
10582 language_settings::SoftWrap::Bounded => {
10583 SoftWrap::Bounded(settings.preferred_line_length)
10584 }
10585 }
10586 }
10587
10588 pub fn set_soft_wrap_mode(
10589 &mut self,
10590 mode: language_settings::SoftWrap,
10591 cx: &mut ViewContext<Self>,
10592 ) {
10593 self.soft_wrap_mode_override = Some(mode);
10594 cx.notify();
10595 }
10596
10597 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
10598 let rem_size = cx.rem_size();
10599 self.display_map.update(cx, |map, cx| {
10600 map.set_font(
10601 style.text.font(),
10602 style.text.font_size.to_pixels(rem_size),
10603 cx,
10604 )
10605 });
10606 self.style = Some(style);
10607 }
10608
10609 pub fn style(&self) -> Option<&EditorStyle> {
10610 self.style.as_ref()
10611 }
10612
10613 // Called by the element. This method is not designed to be called outside of the editor
10614 // element's layout code because it does not notify when rewrapping is computed synchronously.
10615 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
10616 self.display_map
10617 .update(cx, |map, cx| map.set_wrap_width(width, cx))
10618 }
10619
10620 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
10621 if self.soft_wrap_mode_override.is_some() {
10622 self.soft_wrap_mode_override.take();
10623 } else {
10624 let soft_wrap = match self.soft_wrap_mode(cx) {
10625 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
10626 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
10627 language_settings::SoftWrap::PreferLine
10628 }
10629 };
10630 self.soft_wrap_mode_override = Some(soft_wrap);
10631 }
10632 cx.notify();
10633 }
10634
10635 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
10636 let Some(workspace) = self.workspace() else {
10637 return;
10638 };
10639 let fs = workspace.read(cx).app_state().fs.clone();
10640 let current_show = TabBarSettings::get_global(cx).show;
10641 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
10642 setting.show = Some(!current_show);
10643 });
10644 }
10645
10646 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
10647 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
10648 self.buffer
10649 .read(cx)
10650 .settings_at(0, cx)
10651 .indent_guides
10652 .enabled
10653 });
10654 self.show_indent_guides = Some(!currently_enabled);
10655 cx.notify();
10656 }
10657
10658 fn should_show_indent_guides(&self) -> Option<bool> {
10659 self.show_indent_guides
10660 }
10661
10662 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
10663 let mut editor_settings = EditorSettings::get_global(cx).clone();
10664 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
10665 EditorSettings::override_global(editor_settings, cx);
10666 }
10667
10668 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
10669 self.use_relative_line_numbers
10670 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
10671 }
10672
10673 pub fn toggle_relative_line_numbers(
10674 &mut self,
10675 _: &ToggleRelativeLineNumbers,
10676 cx: &mut ViewContext<Self>,
10677 ) {
10678 let is_relative = self.should_use_relative_line_numbers(cx);
10679 self.set_relative_line_number(Some(!is_relative), cx)
10680 }
10681
10682 pub fn set_relative_line_number(
10683 &mut self,
10684 is_relative: Option<bool>,
10685 cx: &mut ViewContext<Self>,
10686 ) {
10687 self.use_relative_line_numbers = is_relative;
10688 cx.notify();
10689 }
10690
10691 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
10692 self.show_gutter = show_gutter;
10693 cx.notify();
10694 }
10695
10696 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
10697 self.show_line_numbers = Some(show_line_numbers);
10698 cx.notify();
10699 }
10700
10701 pub fn set_show_git_diff_gutter(
10702 &mut self,
10703 show_git_diff_gutter: bool,
10704 cx: &mut ViewContext<Self>,
10705 ) {
10706 self.show_git_diff_gutter = Some(show_git_diff_gutter);
10707 cx.notify();
10708 }
10709
10710 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
10711 self.show_code_actions = Some(show_code_actions);
10712 cx.notify();
10713 }
10714
10715 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
10716 self.show_runnables = Some(show_runnables);
10717 cx.notify();
10718 }
10719
10720 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
10721 if self.display_map.read(cx).masked != masked {
10722 self.display_map.update(cx, |map, _| map.masked = masked);
10723 }
10724 cx.notify()
10725 }
10726
10727 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
10728 self.show_wrap_guides = Some(show_wrap_guides);
10729 cx.notify();
10730 }
10731
10732 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
10733 self.show_indent_guides = Some(show_indent_guides);
10734 cx.notify();
10735 }
10736
10737 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
10738 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10739 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10740 if let Some(dir) = file.abs_path(cx).parent() {
10741 return Some(dir.to_owned());
10742 }
10743 }
10744
10745 if let Some(project_path) = buffer.read(cx).project_path(cx) {
10746 return Some(project_path.path.to_path_buf());
10747 }
10748 }
10749
10750 None
10751 }
10752
10753 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
10754 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10755 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10756 cx.reveal_path(&file.abs_path(cx));
10757 }
10758 }
10759 }
10760
10761 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
10762 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10763 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10764 if let Some(path) = file.abs_path(cx).to_str() {
10765 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
10766 }
10767 }
10768 }
10769 }
10770
10771 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
10772 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10773 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10774 if let Some(path) = file.path().to_str() {
10775 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
10776 }
10777 }
10778 }
10779 }
10780
10781 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
10782 self.show_git_blame_gutter = !self.show_git_blame_gutter;
10783
10784 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
10785 self.start_git_blame(true, cx);
10786 }
10787
10788 cx.notify();
10789 }
10790
10791 pub fn toggle_git_blame_inline(
10792 &mut self,
10793 _: &ToggleGitBlameInline,
10794 cx: &mut ViewContext<Self>,
10795 ) {
10796 self.toggle_git_blame_inline_internal(true, cx);
10797 cx.notify();
10798 }
10799
10800 pub fn git_blame_inline_enabled(&self) -> bool {
10801 self.git_blame_inline_enabled
10802 }
10803
10804 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
10805 self.show_selection_menu = self
10806 .show_selection_menu
10807 .map(|show_selections_menu| !show_selections_menu)
10808 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
10809
10810 cx.notify();
10811 }
10812
10813 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
10814 self.show_selection_menu
10815 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
10816 }
10817
10818 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
10819 if let Some(project) = self.project.as_ref() {
10820 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
10821 return;
10822 };
10823
10824 if buffer.read(cx).file().is_none() {
10825 return;
10826 }
10827
10828 let focused = self.focus_handle(cx).contains_focused(cx);
10829
10830 let project = project.clone();
10831 let blame =
10832 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
10833 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
10834 self.blame = Some(blame);
10835 }
10836 }
10837
10838 fn toggle_git_blame_inline_internal(
10839 &mut self,
10840 user_triggered: bool,
10841 cx: &mut ViewContext<Self>,
10842 ) {
10843 if self.git_blame_inline_enabled {
10844 self.git_blame_inline_enabled = false;
10845 self.show_git_blame_inline = false;
10846 self.show_git_blame_inline_delay_task.take();
10847 } else {
10848 self.git_blame_inline_enabled = true;
10849 self.start_git_blame_inline(user_triggered, cx);
10850 }
10851
10852 cx.notify();
10853 }
10854
10855 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
10856 self.start_git_blame(user_triggered, cx);
10857
10858 if ProjectSettings::get_global(cx)
10859 .git
10860 .inline_blame_delay()
10861 .is_some()
10862 {
10863 self.start_inline_blame_timer(cx);
10864 } else {
10865 self.show_git_blame_inline = true
10866 }
10867 }
10868
10869 pub fn blame(&self) -> Option<&Model<GitBlame>> {
10870 self.blame.as_ref()
10871 }
10872
10873 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
10874 self.show_git_blame_gutter && self.has_blame_entries(cx)
10875 }
10876
10877 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
10878 self.show_git_blame_inline
10879 && self.focus_handle.is_focused(cx)
10880 && !self.newest_selection_head_on_empty_line(cx)
10881 && self.has_blame_entries(cx)
10882 }
10883
10884 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
10885 self.blame()
10886 .map_or(false, |blame| blame.read(cx).has_generated_entries())
10887 }
10888
10889 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
10890 let cursor_anchor = self.selections.newest_anchor().head();
10891
10892 let snapshot = self.buffer.read(cx).snapshot(cx);
10893 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
10894
10895 snapshot.line_len(buffer_row) == 0
10896 }
10897
10898 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
10899 let (path, selection, repo) = maybe!({
10900 let project_handle = self.project.as_ref()?.clone();
10901 let project = project_handle.read(cx);
10902
10903 let selection = self.selections.newest::<Point>(cx);
10904 let selection_range = selection.range();
10905
10906 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10907 (buffer, selection_range.start.row..selection_range.end.row)
10908 } else {
10909 let buffer_ranges = self
10910 .buffer()
10911 .read(cx)
10912 .range_to_buffer_ranges(selection_range, cx);
10913
10914 let (buffer, range, _) = if selection.reversed {
10915 buffer_ranges.first()
10916 } else {
10917 buffer_ranges.last()
10918 }?;
10919
10920 let snapshot = buffer.read(cx).snapshot();
10921 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
10922 ..text::ToPoint::to_point(&range.end, &snapshot).row;
10923 (buffer.clone(), selection)
10924 };
10925
10926 let path = buffer
10927 .read(cx)
10928 .file()?
10929 .as_local()?
10930 .path()
10931 .to_str()?
10932 .to_string();
10933 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
10934 Some((path, selection, repo))
10935 })
10936 .ok_or_else(|| anyhow!("unable to open git repository"))?;
10937
10938 const REMOTE_NAME: &str = "origin";
10939 let origin_url = repo
10940 .remote_url(REMOTE_NAME)
10941 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
10942 let sha = repo
10943 .head_sha()
10944 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
10945
10946 let (provider, remote) =
10947 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
10948 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
10949
10950 Ok(provider.build_permalink(
10951 remote,
10952 BuildPermalinkParams {
10953 sha: &sha,
10954 path: &path,
10955 selection: Some(selection),
10956 },
10957 ))
10958 }
10959
10960 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
10961 let permalink = self.get_permalink_to_line(cx);
10962
10963 match permalink {
10964 Ok(permalink) => {
10965 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
10966 }
10967 Err(err) => {
10968 let message = format!("Failed to copy permalink: {err}");
10969
10970 Err::<(), anyhow::Error>(err).log_err();
10971
10972 if let Some(workspace) = self.workspace() {
10973 workspace.update(cx, |workspace, cx| {
10974 struct CopyPermalinkToLine;
10975
10976 workspace.show_toast(
10977 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
10978 cx,
10979 )
10980 })
10981 }
10982 }
10983 }
10984 }
10985
10986 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
10987 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10988 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10989 if let Some(path) = file.path().to_str() {
10990 let selection = self.selections.newest::<Point>(cx).start.row + 1;
10991 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
10992 }
10993 }
10994 }
10995 }
10996
10997 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
10998 let permalink = self.get_permalink_to_line(cx);
10999
11000 match permalink {
11001 Ok(permalink) => {
11002 cx.open_url(permalink.as_ref());
11003 }
11004 Err(err) => {
11005 let message = format!("Failed to open permalink: {err}");
11006
11007 Err::<(), anyhow::Error>(err).log_err();
11008
11009 if let Some(workspace) = self.workspace() {
11010 workspace.update(cx, |workspace, cx| {
11011 struct OpenPermalinkToLine;
11012
11013 workspace.show_toast(
11014 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
11015 cx,
11016 )
11017 })
11018 }
11019 }
11020 }
11021 }
11022
11023 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
11024 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
11025 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
11026 pub fn highlight_rows<T: 'static>(
11027 &mut self,
11028 rows: RangeInclusive<Anchor>,
11029 color: Option<Hsla>,
11030 should_autoscroll: bool,
11031 cx: &mut ViewContext<Self>,
11032 ) {
11033 let snapshot = self.buffer().read(cx).snapshot(cx);
11034 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11035 let existing_highlight_index = row_highlights.binary_search_by(|highlight| {
11036 highlight
11037 .range
11038 .start()
11039 .cmp(rows.start(), &snapshot)
11040 .then(highlight.range.end().cmp(rows.end(), &snapshot))
11041 });
11042 match (color, existing_highlight_index) {
11043 (Some(_), Ok(ix)) | (_, Err(ix)) => row_highlights.insert(
11044 ix,
11045 RowHighlight {
11046 index: post_inc(&mut self.highlight_order),
11047 range: rows,
11048 should_autoscroll,
11049 color,
11050 },
11051 ),
11052 (None, Ok(i)) => {
11053 row_highlights.remove(i);
11054 }
11055 }
11056 }
11057
11058 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11059 pub fn clear_row_highlights<T: 'static>(&mut self) {
11060 self.highlighted_rows.remove(&TypeId::of::<T>());
11061 }
11062
11063 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11064 pub fn highlighted_rows<T: 'static>(
11065 &self,
11066 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
11067 Some(
11068 self.highlighted_rows
11069 .get(&TypeId::of::<T>())?
11070 .iter()
11071 .map(|highlight| (&highlight.range, highlight.color.as_ref())),
11072 )
11073 }
11074
11075 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11076 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11077 /// Allows to ignore certain kinds of highlights.
11078 pub fn highlighted_display_rows(
11079 &mut self,
11080 cx: &mut WindowContext,
11081 ) -> BTreeMap<DisplayRow, Hsla> {
11082 let snapshot = self.snapshot(cx);
11083 let mut used_highlight_orders = HashMap::default();
11084 self.highlighted_rows
11085 .iter()
11086 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11087 .fold(
11088 BTreeMap::<DisplayRow, Hsla>::new(),
11089 |mut unique_rows, highlight| {
11090 let start_row = highlight.range.start().to_display_point(&snapshot).row();
11091 let end_row = highlight.range.end().to_display_point(&snapshot).row();
11092 for row in start_row.0..=end_row.0 {
11093 let used_index =
11094 used_highlight_orders.entry(row).or_insert(highlight.index);
11095 if highlight.index >= *used_index {
11096 *used_index = highlight.index;
11097 match highlight.color {
11098 Some(hsla) => unique_rows.insert(DisplayRow(row), hsla),
11099 None => unique_rows.remove(&DisplayRow(row)),
11100 };
11101 }
11102 }
11103 unique_rows
11104 },
11105 )
11106 }
11107
11108 pub fn highlighted_display_row_for_autoscroll(
11109 &self,
11110 snapshot: &DisplaySnapshot,
11111 ) -> Option<DisplayRow> {
11112 self.highlighted_rows
11113 .values()
11114 .flat_map(|highlighted_rows| highlighted_rows.iter())
11115 .filter_map(|highlight| {
11116 if highlight.color.is_none() || !highlight.should_autoscroll {
11117 return None;
11118 }
11119 Some(highlight.range.start().to_display_point(snapshot).row())
11120 })
11121 .min()
11122 }
11123
11124 pub fn set_search_within_ranges(
11125 &mut self,
11126 ranges: &[Range<Anchor>],
11127 cx: &mut ViewContext<Self>,
11128 ) {
11129 self.highlight_background::<SearchWithinRange>(
11130 ranges,
11131 |colors| colors.editor_document_highlight_read_background,
11132 cx,
11133 )
11134 }
11135
11136 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11137 self.breadcrumb_header = Some(new_header);
11138 }
11139
11140 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11141 self.clear_background_highlights::<SearchWithinRange>(cx);
11142 }
11143
11144 pub fn highlight_background<T: 'static>(
11145 &mut self,
11146 ranges: &[Range<Anchor>],
11147 color_fetcher: fn(&ThemeColors) -> Hsla,
11148 cx: &mut ViewContext<Self>,
11149 ) {
11150 self.background_highlights
11151 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11152 self.scrollbar_marker_state.dirty = true;
11153 cx.notify();
11154 }
11155
11156 pub fn clear_background_highlights<T: 'static>(
11157 &mut self,
11158 cx: &mut ViewContext<Self>,
11159 ) -> Option<BackgroundHighlight> {
11160 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11161 if !text_highlights.1.is_empty() {
11162 self.scrollbar_marker_state.dirty = true;
11163 cx.notify();
11164 }
11165 Some(text_highlights)
11166 }
11167
11168 pub fn highlight_gutter<T: 'static>(
11169 &mut self,
11170 ranges: &[Range<Anchor>],
11171 color_fetcher: fn(&AppContext) -> Hsla,
11172 cx: &mut ViewContext<Self>,
11173 ) {
11174 self.gutter_highlights
11175 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11176 cx.notify();
11177 }
11178
11179 pub fn clear_gutter_highlights<T: 'static>(
11180 &mut self,
11181 cx: &mut ViewContext<Self>,
11182 ) -> Option<GutterHighlight> {
11183 cx.notify();
11184 self.gutter_highlights.remove(&TypeId::of::<T>())
11185 }
11186
11187 #[cfg(feature = "test-support")]
11188 pub fn all_text_background_highlights(
11189 &mut self,
11190 cx: &mut ViewContext<Self>,
11191 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11192 let snapshot = self.snapshot(cx);
11193 let buffer = &snapshot.buffer_snapshot;
11194 let start = buffer.anchor_before(0);
11195 let end = buffer.anchor_after(buffer.len());
11196 let theme = cx.theme().colors();
11197 self.background_highlights_in_range(start..end, &snapshot, theme)
11198 }
11199
11200 #[cfg(feature = "test-support")]
11201 pub fn search_background_highlights(
11202 &mut self,
11203 cx: &mut ViewContext<Self>,
11204 ) -> Vec<Range<Point>> {
11205 let snapshot = self.buffer().read(cx).snapshot(cx);
11206
11207 let highlights = self
11208 .background_highlights
11209 .get(&TypeId::of::<items::BufferSearchHighlights>());
11210
11211 if let Some((_color, ranges)) = highlights {
11212 ranges
11213 .iter()
11214 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11215 .collect_vec()
11216 } else {
11217 vec![]
11218 }
11219 }
11220
11221 fn document_highlights_for_position<'a>(
11222 &'a self,
11223 position: Anchor,
11224 buffer: &'a MultiBufferSnapshot,
11225 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
11226 let read_highlights = self
11227 .background_highlights
11228 .get(&TypeId::of::<DocumentHighlightRead>())
11229 .map(|h| &h.1);
11230 let write_highlights = self
11231 .background_highlights
11232 .get(&TypeId::of::<DocumentHighlightWrite>())
11233 .map(|h| &h.1);
11234 let left_position = position.bias_left(buffer);
11235 let right_position = position.bias_right(buffer);
11236 read_highlights
11237 .into_iter()
11238 .chain(write_highlights)
11239 .flat_map(move |ranges| {
11240 let start_ix = match ranges.binary_search_by(|probe| {
11241 let cmp = probe.end.cmp(&left_position, buffer);
11242 if cmp.is_ge() {
11243 Ordering::Greater
11244 } else {
11245 Ordering::Less
11246 }
11247 }) {
11248 Ok(i) | Err(i) => i,
11249 };
11250
11251 ranges[start_ix..]
11252 .iter()
11253 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11254 })
11255 }
11256
11257 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11258 self.background_highlights
11259 .get(&TypeId::of::<T>())
11260 .map_or(false, |(_, highlights)| !highlights.is_empty())
11261 }
11262
11263 pub fn background_highlights_in_range(
11264 &self,
11265 search_range: Range<Anchor>,
11266 display_snapshot: &DisplaySnapshot,
11267 theme: &ThemeColors,
11268 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11269 let mut results = Vec::new();
11270 for (color_fetcher, ranges) in self.background_highlights.values() {
11271 let color = color_fetcher(theme);
11272 let start_ix = match ranges.binary_search_by(|probe| {
11273 let cmp = probe
11274 .end
11275 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11276 if cmp.is_gt() {
11277 Ordering::Greater
11278 } else {
11279 Ordering::Less
11280 }
11281 }) {
11282 Ok(i) | Err(i) => i,
11283 };
11284 for range in &ranges[start_ix..] {
11285 if range
11286 .start
11287 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11288 .is_ge()
11289 {
11290 break;
11291 }
11292
11293 let start = range.start.to_display_point(display_snapshot);
11294 let end = range.end.to_display_point(display_snapshot);
11295 results.push((start..end, color))
11296 }
11297 }
11298 results
11299 }
11300
11301 pub fn background_highlight_row_ranges<T: 'static>(
11302 &self,
11303 search_range: Range<Anchor>,
11304 display_snapshot: &DisplaySnapshot,
11305 count: usize,
11306 ) -> Vec<RangeInclusive<DisplayPoint>> {
11307 let mut results = Vec::new();
11308 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
11309 return vec![];
11310 };
11311
11312 let start_ix = match ranges.binary_search_by(|probe| {
11313 let cmp = probe
11314 .end
11315 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11316 if cmp.is_gt() {
11317 Ordering::Greater
11318 } else {
11319 Ordering::Less
11320 }
11321 }) {
11322 Ok(i) | Err(i) => i,
11323 };
11324 let mut push_region = |start: Option<Point>, end: Option<Point>| {
11325 if let (Some(start_display), Some(end_display)) = (start, end) {
11326 results.push(
11327 start_display.to_display_point(display_snapshot)
11328 ..=end_display.to_display_point(display_snapshot),
11329 );
11330 }
11331 };
11332 let mut start_row: Option<Point> = None;
11333 let mut end_row: Option<Point> = None;
11334 if ranges.len() > count {
11335 return Vec::new();
11336 }
11337 for range in &ranges[start_ix..] {
11338 if range
11339 .start
11340 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11341 .is_ge()
11342 {
11343 break;
11344 }
11345 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
11346 if let Some(current_row) = &end_row {
11347 if end.row == current_row.row {
11348 continue;
11349 }
11350 }
11351 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
11352 if start_row.is_none() {
11353 assert_eq!(end_row, None);
11354 start_row = Some(start);
11355 end_row = Some(end);
11356 continue;
11357 }
11358 if let Some(current_end) = end_row.as_mut() {
11359 if start.row > current_end.row + 1 {
11360 push_region(start_row, end_row);
11361 start_row = Some(start);
11362 end_row = Some(end);
11363 } else {
11364 // Merge two hunks.
11365 *current_end = end;
11366 }
11367 } else {
11368 unreachable!();
11369 }
11370 }
11371 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
11372 push_region(start_row, end_row);
11373 results
11374 }
11375
11376 pub fn gutter_highlights_in_range(
11377 &self,
11378 search_range: Range<Anchor>,
11379 display_snapshot: &DisplaySnapshot,
11380 cx: &AppContext,
11381 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11382 let mut results = Vec::new();
11383 for (color_fetcher, ranges) in self.gutter_highlights.values() {
11384 let color = color_fetcher(cx);
11385 let start_ix = match ranges.binary_search_by(|probe| {
11386 let cmp = probe
11387 .end
11388 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11389 if cmp.is_gt() {
11390 Ordering::Greater
11391 } else {
11392 Ordering::Less
11393 }
11394 }) {
11395 Ok(i) | Err(i) => i,
11396 };
11397 for range in &ranges[start_ix..] {
11398 if range
11399 .start
11400 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11401 .is_ge()
11402 {
11403 break;
11404 }
11405
11406 let start = range.start.to_display_point(display_snapshot);
11407 let end = range.end.to_display_point(display_snapshot);
11408 results.push((start..end, color))
11409 }
11410 }
11411 results
11412 }
11413
11414 /// Get the text ranges corresponding to the redaction query
11415 pub fn redacted_ranges(
11416 &self,
11417 search_range: Range<Anchor>,
11418 display_snapshot: &DisplaySnapshot,
11419 cx: &WindowContext,
11420 ) -> Vec<Range<DisplayPoint>> {
11421 display_snapshot
11422 .buffer_snapshot
11423 .redacted_ranges(search_range, |file| {
11424 if let Some(file) = file {
11425 file.is_private()
11426 && EditorSettings::get(
11427 Some(SettingsLocation {
11428 worktree_id: file.worktree_id(cx),
11429 path: file.path().as_ref(),
11430 }),
11431 cx,
11432 )
11433 .redact_private_values
11434 } else {
11435 false
11436 }
11437 })
11438 .map(|range| {
11439 range.start.to_display_point(display_snapshot)
11440 ..range.end.to_display_point(display_snapshot)
11441 })
11442 .collect()
11443 }
11444
11445 pub fn highlight_text<T: 'static>(
11446 &mut self,
11447 ranges: Vec<Range<Anchor>>,
11448 style: HighlightStyle,
11449 cx: &mut ViewContext<Self>,
11450 ) {
11451 self.display_map.update(cx, |map, _| {
11452 map.highlight_text(TypeId::of::<T>(), ranges, style)
11453 });
11454 cx.notify();
11455 }
11456
11457 pub(crate) fn highlight_inlays<T: 'static>(
11458 &mut self,
11459 highlights: Vec<InlayHighlight>,
11460 style: HighlightStyle,
11461 cx: &mut ViewContext<Self>,
11462 ) {
11463 self.display_map.update(cx, |map, _| {
11464 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
11465 });
11466 cx.notify();
11467 }
11468
11469 pub fn text_highlights<'a, T: 'static>(
11470 &'a self,
11471 cx: &'a AppContext,
11472 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
11473 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
11474 }
11475
11476 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
11477 let cleared = self
11478 .display_map
11479 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
11480 if cleared {
11481 cx.notify();
11482 }
11483 }
11484
11485 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
11486 (self.read_only(cx) || self.blink_manager.read(cx).visible())
11487 && self.focus_handle.is_focused(cx)
11488 }
11489
11490 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
11491 self.show_cursor_when_unfocused = is_enabled;
11492 cx.notify();
11493 }
11494
11495 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
11496 cx.notify();
11497 }
11498
11499 fn on_buffer_event(
11500 &mut self,
11501 multibuffer: Model<MultiBuffer>,
11502 event: &multi_buffer::Event,
11503 cx: &mut ViewContext<Self>,
11504 ) {
11505 match event {
11506 multi_buffer::Event::Edited {
11507 singleton_buffer_edited,
11508 } => {
11509 self.scrollbar_marker_state.dirty = true;
11510 self.active_indent_guides_state.dirty = true;
11511 self.refresh_active_diagnostics(cx);
11512 self.refresh_code_actions(cx);
11513 if self.has_active_inline_completion(cx) {
11514 self.update_visible_inline_completion(cx);
11515 }
11516 cx.emit(EditorEvent::BufferEdited);
11517 cx.emit(SearchEvent::MatchesInvalidated);
11518 if *singleton_buffer_edited {
11519 if let Some(project) = &self.project {
11520 let project = project.read(cx);
11521 #[allow(clippy::mutable_key_type)]
11522 let languages_affected = multibuffer
11523 .read(cx)
11524 .all_buffers()
11525 .into_iter()
11526 .filter_map(|buffer| {
11527 let buffer = buffer.read(cx);
11528 let language = buffer.language()?;
11529 if project.is_local_or_ssh()
11530 && project.language_servers_for_buffer(buffer, cx).count() == 0
11531 {
11532 None
11533 } else {
11534 Some(language)
11535 }
11536 })
11537 .cloned()
11538 .collect::<HashSet<_>>();
11539 if !languages_affected.is_empty() {
11540 self.refresh_inlay_hints(
11541 InlayHintRefreshReason::BufferEdited(languages_affected),
11542 cx,
11543 );
11544 }
11545 }
11546 }
11547
11548 let Some(project) = &self.project else { return };
11549 let telemetry = project.read(cx).client().telemetry().clone();
11550 refresh_linked_ranges(self, cx);
11551 telemetry.log_edit_event("editor");
11552 }
11553 multi_buffer::Event::ExcerptsAdded {
11554 buffer,
11555 predecessor,
11556 excerpts,
11557 } => {
11558 self.tasks_update_task = Some(self.refresh_runnables(cx));
11559 cx.emit(EditorEvent::ExcerptsAdded {
11560 buffer: buffer.clone(),
11561 predecessor: *predecessor,
11562 excerpts: excerpts.clone(),
11563 });
11564 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
11565 }
11566 multi_buffer::Event::ExcerptsRemoved { ids } => {
11567 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
11568 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
11569 }
11570 multi_buffer::Event::ExcerptsEdited { ids } => {
11571 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
11572 }
11573 multi_buffer::Event::ExcerptsExpanded { ids } => {
11574 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
11575 }
11576 multi_buffer::Event::Reparsed(buffer_id) => {
11577 self.tasks_update_task = Some(self.refresh_runnables(cx));
11578
11579 cx.emit(EditorEvent::Reparsed(*buffer_id));
11580 }
11581 multi_buffer::Event::LanguageChanged(buffer_id) => {
11582 linked_editing_ranges::refresh_linked_ranges(self, cx);
11583 cx.emit(EditorEvent::Reparsed(*buffer_id));
11584 cx.notify();
11585 }
11586 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
11587 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
11588 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
11589 cx.emit(EditorEvent::TitleChanged)
11590 }
11591 multi_buffer::Event::DiffBaseChanged => {
11592 self.scrollbar_marker_state.dirty = true;
11593 cx.emit(EditorEvent::DiffBaseChanged);
11594 cx.notify();
11595 }
11596 multi_buffer::Event::DiffUpdated { buffer } => {
11597 self.sync_expanded_diff_hunks(buffer.clone(), cx);
11598 cx.notify();
11599 }
11600 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
11601 multi_buffer::Event::DiagnosticsUpdated => {
11602 self.refresh_active_diagnostics(cx);
11603 self.scrollbar_marker_state.dirty = true;
11604 cx.notify();
11605 }
11606 _ => {}
11607 };
11608 }
11609
11610 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
11611 cx.notify();
11612 }
11613
11614 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
11615 self.tasks_update_task = Some(self.refresh_runnables(cx));
11616 self.refresh_inline_completion(true, false, cx);
11617 self.refresh_inlay_hints(
11618 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
11619 self.selections.newest_anchor().head(),
11620 &self.buffer.read(cx).snapshot(cx),
11621 cx,
11622 )),
11623 cx,
11624 );
11625 let editor_settings = EditorSettings::get_global(cx);
11626 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
11627 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
11628
11629 let project_settings = ProjectSettings::get_global(cx);
11630 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
11631
11632 if self.mode == EditorMode::Full {
11633 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
11634 if self.git_blame_inline_enabled != inline_blame_enabled {
11635 self.toggle_git_blame_inline_internal(false, cx);
11636 }
11637 }
11638
11639 cx.notify();
11640 }
11641
11642 pub fn set_searchable(&mut self, searchable: bool) {
11643 self.searchable = searchable;
11644 }
11645
11646 pub fn searchable(&self) -> bool {
11647 self.searchable
11648 }
11649
11650 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
11651 self.open_excerpts_common(true, cx)
11652 }
11653
11654 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
11655 self.open_excerpts_common(false, cx)
11656 }
11657
11658 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
11659 let buffer = self.buffer.read(cx);
11660 if buffer.is_singleton() {
11661 cx.propagate();
11662 return;
11663 }
11664
11665 let Some(workspace) = self.workspace() else {
11666 cx.propagate();
11667 return;
11668 };
11669
11670 let mut new_selections_by_buffer = HashMap::default();
11671 for selection in self.selections.all::<usize>(cx) {
11672 for (buffer, mut range, _) in
11673 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
11674 {
11675 if selection.reversed {
11676 mem::swap(&mut range.start, &mut range.end);
11677 }
11678 new_selections_by_buffer
11679 .entry(buffer)
11680 .or_insert(Vec::new())
11681 .push(range)
11682 }
11683 }
11684
11685 // We defer the pane interaction because we ourselves are a workspace item
11686 // and activating a new item causes the pane to call a method on us reentrantly,
11687 // which panics if we're on the stack.
11688 cx.window_context().defer(move |cx| {
11689 workspace.update(cx, |workspace, cx| {
11690 let pane = if split {
11691 workspace.adjacent_pane(cx)
11692 } else {
11693 workspace.active_pane().clone()
11694 };
11695
11696 for (buffer, ranges) in new_selections_by_buffer {
11697 let editor =
11698 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
11699 editor.update(cx, |editor, cx| {
11700 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
11701 s.select_ranges(ranges);
11702 });
11703 });
11704 }
11705 })
11706 });
11707 }
11708
11709 fn jump(
11710 &mut self,
11711 path: ProjectPath,
11712 position: Point,
11713 anchor: language::Anchor,
11714 offset_from_top: u32,
11715 cx: &mut ViewContext<Self>,
11716 ) {
11717 let workspace = self.workspace();
11718 cx.spawn(|_, mut cx| async move {
11719 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
11720 let editor = workspace.update(&mut cx, |workspace, cx| {
11721 // Reset the preview item id before opening the new item
11722 workspace.active_pane().update(cx, |pane, cx| {
11723 pane.set_preview_item_id(None, cx);
11724 });
11725 workspace.open_path_preview(path, None, true, true, cx)
11726 })?;
11727 let editor = editor
11728 .await?
11729 .downcast::<Editor>()
11730 .ok_or_else(|| anyhow!("opened item was not an editor"))?
11731 .downgrade();
11732 editor.update(&mut cx, |editor, cx| {
11733 let buffer = editor
11734 .buffer()
11735 .read(cx)
11736 .as_singleton()
11737 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
11738 let buffer = buffer.read(cx);
11739 let cursor = if buffer.can_resolve(&anchor) {
11740 language::ToPoint::to_point(&anchor, buffer)
11741 } else {
11742 buffer.clip_point(position, Bias::Left)
11743 };
11744
11745 let nav_history = editor.nav_history.take();
11746 editor.change_selections(
11747 Some(Autoscroll::top_relative(offset_from_top as usize)),
11748 cx,
11749 |s| {
11750 s.select_ranges([cursor..cursor]);
11751 },
11752 );
11753 editor.nav_history = nav_history;
11754
11755 anyhow::Ok(())
11756 })??;
11757
11758 anyhow::Ok(())
11759 })
11760 .detach_and_log_err(cx);
11761 }
11762
11763 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
11764 let snapshot = self.buffer.read(cx).read(cx);
11765 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
11766 Some(
11767 ranges
11768 .iter()
11769 .map(move |range| {
11770 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
11771 })
11772 .collect(),
11773 )
11774 }
11775
11776 fn selection_replacement_ranges(
11777 &self,
11778 range: Range<OffsetUtf16>,
11779 cx: &AppContext,
11780 ) -> Vec<Range<OffsetUtf16>> {
11781 let selections = self.selections.all::<OffsetUtf16>(cx);
11782 let newest_selection = selections
11783 .iter()
11784 .max_by_key(|selection| selection.id)
11785 .unwrap();
11786 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
11787 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
11788 let snapshot = self.buffer.read(cx).read(cx);
11789 selections
11790 .into_iter()
11791 .map(|mut selection| {
11792 selection.start.0 =
11793 (selection.start.0 as isize).saturating_add(start_delta) as usize;
11794 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
11795 snapshot.clip_offset_utf16(selection.start, Bias::Left)
11796 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
11797 })
11798 .collect()
11799 }
11800
11801 fn report_editor_event(
11802 &self,
11803 operation: &'static str,
11804 file_extension: Option<String>,
11805 cx: &AppContext,
11806 ) {
11807 if cfg!(any(test, feature = "test-support")) {
11808 return;
11809 }
11810
11811 let Some(project) = &self.project else { return };
11812
11813 // If None, we are in a file without an extension
11814 let file = self
11815 .buffer
11816 .read(cx)
11817 .as_singleton()
11818 .and_then(|b| b.read(cx).file());
11819 let file_extension = file_extension.or(file
11820 .as_ref()
11821 .and_then(|file| Path::new(file.file_name(cx)).extension())
11822 .and_then(|e| e.to_str())
11823 .map(|a| a.to_string()));
11824
11825 let vim_mode = cx
11826 .global::<SettingsStore>()
11827 .raw_user_settings()
11828 .get("vim_mode")
11829 == Some(&serde_json::Value::Bool(true));
11830
11831 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
11832 == language::language_settings::InlineCompletionProvider::Copilot;
11833 let copilot_enabled_for_language = self
11834 .buffer
11835 .read(cx)
11836 .settings_at(0, cx)
11837 .show_inline_completions;
11838
11839 let telemetry = project.read(cx).client().telemetry().clone();
11840 telemetry.report_editor_event(
11841 file_extension,
11842 vim_mode,
11843 operation,
11844 copilot_enabled,
11845 copilot_enabled_for_language,
11846 )
11847 }
11848
11849 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
11850 /// with each line being an array of {text, highlight} objects.
11851 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
11852 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
11853 return;
11854 };
11855
11856 #[derive(Serialize)]
11857 struct Chunk<'a> {
11858 text: String,
11859 highlight: Option<&'a str>,
11860 }
11861
11862 let snapshot = buffer.read(cx).snapshot();
11863 let range = self
11864 .selected_text_range(false, cx)
11865 .and_then(|selection| {
11866 if selection.range.is_empty() {
11867 None
11868 } else {
11869 Some(selection.range)
11870 }
11871 })
11872 .unwrap_or_else(|| 0..snapshot.len());
11873
11874 let chunks = snapshot.chunks(range, true);
11875 let mut lines = Vec::new();
11876 let mut line: VecDeque<Chunk> = VecDeque::new();
11877
11878 let Some(style) = self.style.as_ref() else {
11879 return;
11880 };
11881
11882 for chunk in chunks {
11883 let highlight = chunk
11884 .syntax_highlight_id
11885 .and_then(|id| id.name(&style.syntax));
11886 let mut chunk_lines = chunk.text.split('\n').peekable();
11887 while let Some(text) = chunk_lines.next() {
11888 let mut merged_with_last_token = false;
11889 if let Some(last_token) = line.back_mut() {
11890 if last_token.highlight == highlight {
11891 last_token.text.push_str(text);
11892 merged_with_last_token = true;
11893 }
11894 }
11895
11896 if !merged_with_last_token {
11897 line.push_back(Chunk {
11898 text: text.into(),
11899 highlight,
11900 });
11901 }
11902
11903 if chunk_lines.peek().is_some() {
11904 if line.len() > 1 && line.front().unwrap().text.is_empty() {
11905 line.pop_front();
11906 }
11907 if line.len() > 1 && line.back().unwrap().text.is_empty() {
11908 line.pop_back();
11909 }
11910
11911 lines.push(mem::take(&mut line));
11912 }
11913 }
11914 }
11915
11916 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
11917 return;
11918 };
11919 cx.write_to_clipboard(ClipboardItem::new_string(lines));
11920 }
11921
11922 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
11923 &self.inlay_hint_cache
11924 }
11925
11926 pub fn replay_insert_event(
11927 &mut self,
11928 text: &str,
11929 relative_utf16_range: Option<Range<isize>>,
11930 cx: &mut ViewContext<Self>,
11931 ) {
11932 if !self.input_enabled {
11933 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11934 return;
11935 }
11936 if let Some(relative_utf16_range) = relative_utf16_range {
11937 let selections = self.selections.all::<OffsetUtf16>(cx);
11938 self.change_selections(None, cx, |s| {
11939 let new_ranges = selections.into_iter().map(|range| {
11940 let start = OffsetUtf16(
11941 range
11942 .head()
11943 .0
11944 .saturating_add_signed(relative_utf16_range.start),
11945 );
11946 let end = OffsetUtf16(
11947 range
11948 .head()
11949 .0
11950 .saturating_add_signed(relative_utf16_range.end),
11951 );
11952 start..end
11953 });
11954 s.select_ranges(new_ranges);
11955 });
11956 }
11957
11958 self.handle_input(text, cx);
11959 }
11960
11961 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
11962 let Some(project) = self.project.as_ref() else {
11963 return false;
11964 };
11965 let project = project.read(cx);
11966
11967 let mut supports = false;
11968 self.buffer().read(cx).for_each_buffer(|buffer| {
11969 if !supports {
11970 supports = project
11971 .language_servers_for_buffer(buffer.read(cx), cx)
11972 .any(
11973 |(_, server)| match server.capabilities().inlay_hint_provider {
11974 Some(lsp::OneOf::Left(enabled)) => enabled,
11975 Some(lsp::OneOf::Right(_)) => true,
11976 None => false,
11977 },
11978 )
11979 }
11980 });
11981 supports
11982 }
11983
11984 pub fn focus(&self, cx: &mut WindowContext) {
11985 cx.focus(&self.focus_handle)
11986 }
11987
11988 pub fn is_focused(&self, cx: &WindowContext) -> bool {
11989 self.focus_handle.is_focused(cx)
11990 }
11991
11992 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
11993 cx.emit(EditorEvent::Focused);
11994
11995 if let Some(descendant) = self
11996 .last_focused_descendant
11997 .take()
11998 .and_then(|descendant| descendant.upgrade())
11999 {
12000 cx.focus(&descendant);
12001 } else {
12002 if let Some(blame) = self.blame.as_ref() {
12003 blame.update(cx, GitBlame::focus)
12004 }
12005
12006 self.blink_manager.update(cx, BlinkManager::enable);
12007 self.show_cursor_names(cx);
12008 self.buffer.update(cx, |buffer, cx| {
12009 buffer.finalize_last_transaction(cx);
12010 if self.leader_peer_id.is_none() {
12011 buffer.set_active_selections(
12012 &self.selections.disjoint_anchors(),
12013 self.selections.line_mode,
12014 self.cursor_shape,
12015 cx,
12016 );
12017 }
12018 });
12019 }
12020 }
12021
12022 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12023 cx.emit(EditorEvent::FocusedIn)
12024 }
12025
12026 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12027 if event.blurred != self.focus_handle {
12028 self.last_focused_descendant = Some(event.blurred);
12029 }
12030 }
12031
12032 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12033 self.blink_manager.update(cx, BlinkManager::disable);
12034 self.buffer
12035 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12036
12037 if let Some(blame) = self.blame.as_ref() {
12038 blame.update(cx, GitBlame::blur)
12039 }
12040 if !self.hover_state.focused(cx) {
12041 hide_hover(self, cx);
12042 }
12043
12044 self.hide_context_menu(cx);
12045 cx.emit(EditorEvent::Blurred);
12046 cx.notify();
12047 }
12048
12049 pub fn register_action<A: Action>(
12050 &mut self,
12051 listener: impl Fn(&A, &mut WindowContext) + 'static,
12052 ) -> Subscription {
12053 let id = self.next_editor_action_id.post_inc();
12054 let listener = Arc::new(listener);
12055 self.editor_actions.borrow_mut().insert(
12056 id,
12057 Box::new(move |cx| {
12058 let cx = cx.window_context();
12059 let listener = listener.clone();
12060 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12061 let action = action.downcast_ref().unwrap();
12062 if phase == DispatchPhase::Bubble {
12063 listener(action, cx)
12064 }
12065 })
12066 }),
12067 );
12068
12069 let editor_actions = self.editor_actions.clone();
12070 Subscription::new(move || {
12071 editor_actions.borrow_mut().remove(&id);
12072 })
12073 }
12074
12075 pub fn file_header_size(&self) -> u32 {
12076 self.file_header_size
12077 }
12078
12079 pub fn revert(
12080 &mut self,
12081 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12082 cx: &mut ViewContext<Self>,
12083 ) {
12084 self.buffer().update(cx, |multi_buffer, cx| {
12085 for (buffer_id, changes) in revert_changes {
12086 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12087 buffer.update(cx, |buffer, cx| {
12088 buffer.edit(
12089 changes.into_iter().map(|(range, text)| {
12090 (range, text.to_string().map(Arc::<str>::from))
12091 }),
12092 None,
12093 cx,
12094 );
12095 });
12096 }
12097 }
12098 });
12099 self.change_selections(None, cx, |selections| selections.refresh());
12100 }
12101
12102 pub fn to_pixel_point(
12103 &mut self,
12104 source: multi_buffer::Anchor,
12105 editor_snapshot: &EditorSnapshot,
12106 cx: &mut ViewContext<Self>,
12107 ) -> Option<gpui::Point<Pixels>> {
12108 let source_point = source.to_display_point(editor_snapshot);
12109 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12110 }
12111
12112 pub fn display_to_pixel_point(
12113 &mut self,
12114 source: DisplayPoint,
12115 editor_snapshot: &EditorSnapshot,
12116 cx: &mut ViewContext<Self>,
12117 ) -> Option<gpui::Point<Pixels>> {
12118 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12119 let text_layout_details = self.text_layout_details(cx);
12120 let scroll_top = text_layout_details
12121 .scroll_anchor
12122 .scroll_position(editor_snapshot)
12123 .y;
12124
12125 if source.row().as_f32() < scroll_top.floor() {
12126 return None;
12127 }
12128 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12129 let source_y = line_height * (source.row().as_f32() - scroll_top);
12130 Some(gpui::Point::new(source_x, source_y))
12131 }
12132
12133 fn gutter_bounds(&self) -> Option<Bounds<Pixels>> {
12134 let bounds = self.last_bounds?;
12135 Some(element::gutter_bounds(bounds, self.gutter_dimensions))
12136 }
12137
12138 pub fn has_active_completions_menu(&self) -> bool {
12139 self.context_menu.read().as_ref().map_or(false, |menu| {
12140 menu.visible() && matches!(menu, ContextMenu::Completions(_))
12141 })
12142 }
12143
12144 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12145 self.addons
12146 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
12147 }
12148
12149 pub fn unregister_addon<T: Addon>(&mut self) {
12150 self.addons.remove(&std::any::TypeId::of::<T>());
12151 }
12152
12153 pub fn addon<T: Addon>(&self) -> Option<&T> {
12154 let type_id = std::any::TypeId::of::<T>();
12155 self.addons
12156 .get(&type_id)
12157 .and_then(|item| item.to_any().downcast_ref::<T>())
12158 }
12159}
12160
12161fn hunks_for_selections(
12162 multi_buffer_snapshot: &MultiBufferSnapshot,
12163 selections: &[Selection<Anchor>],
12164) -> Vec<DiffHunk<MultiBufferRow>> {
12165 let buffer_rows_for_selections = selections.iter().map(|selection| {
12166 let head = selection.head();
12167 let tail = selection.tail();
12168 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
12169 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
12170 if start > end {
12171 end..start
12172 } else {
12173 start..end
12174 }
12175 });
12176
12177 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
12178}
12179
12180pub fn hunks_for_rows(
12181 rows: impl Iterator<Item = Range<MultiBufferRow>>,
12182 multi_buffer_snapshot: &MultiBufferSnapshot,
12183) -> Vec<DiffHunk<MultiBufferRow>> {
12184 let mut hunks = Vec::new();
12185 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
12186 HashMap::default();
12187 for selected_multi_buffer_rows in rows {
12188 let query_rows =
12189 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
12190 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
12191 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
12192 // when the caret is just above or just below the deleted hunk.
12193 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
12194 let related_to_selection = if allow_adjacent {
12195 hunk.associated_range.overlaps(&query_rows)
12196 || hunk.associated_range.start == query_rows.end
12197 || hunk.associated_range.end == query_rows.start
12198 } else {
12199 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
12200 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
12201 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
12202 || selected_multi_buffer_rows.end == hunk.associated_range.start
12203 };
12204 if related_to_selection {
12205 if !processed_buffer_rows
12206 .entry(hunk.buffer_id)
12207 .or_default()
12208 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
12209 {
12210 continue;
12211 }
12212 hunks.push(hunk);
12213 }
12214 }
12215 }
12216
12217 hunks
12218}
12219
12220pub trait CollaborationHub {
12221 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
12222 fn user_participant_indices<'a>(
12223 &self,
12224 cx: &'a AppContext,
12225 ) -> &'a HashMap<u64, ParticipantIndex>;
12226 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
12227}
12228
12229impl CollaborationHub for Model<Project> {
12230 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
12231 self.read(cx).collaborators()
12232 }
12233
12234 fn user_participant_indices<'a>(
12235 &self,
12236 cx: &'a AppContext,
12237 ) -> &'a HashMap<u64, ParticipantIndex> {
12238 self.read(cx).user_store().read(cx).participant_indices()
12239 }
12240
12241 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
12242 let this = self.read(cx);
12243 let user_ids = this.collaborators().values().map(|c| c.user_id);
12244 this.user_store().read_with(cx, |user_store, cx| {
12245 user_store.participant_names(user_ids, cx)
12246 })
12247 }
12248}
12249
12250pub trait CompletionProvider {
12251 fn completions(
12252 &self,
12253 buffer: &Model<Buffer>,
12254 buffer_position: text::Anchor,
12255 trigger: CompletionContext,
12256 cx: &mut ViewContext<Editor>,
12257 ) -> Task<Result<Vec<Completion>>>;
12258
12259 fn resolve_completions(
12260 &self,
12261 buffer: Model<Buffer>,
12262 completion_indices: Vec<usize>,
12263 completions: Arc<RwLock<Box<[Completion]>>>,
12264 cx: &mut ViewContext<Editor>,
12265 ) -> Task<Result<bool>>;
12266
12267 fn apply_additional_edits_for_completion(
12268 &self,
12269 buffer: Model<Buffer>,
12270 completion: Completion,
12271 push_to_history: bool,
12272 cx: &mut ViewContext<Editor>,
12273 ) -> Task<Result<Option<language::Transaction>>>;
12274
12275 fn is_completion_trigger(
12276 &self,
12277 buffer: &Model<Buffer>,
12278 position: language::Anchor,
12279 text: &str,
12280 trigger_in_words: bool,
12281 cx: &mut ViewContext<Editor>,
12282 ) -> bool;
12283
12284 fn sort_completions(&self) -> bool {
12285 true
12286 }
12287}
12288
12289fn snippet_completions(
12290 project: &Project,
12291 buffer: &Model<Buffer>,
12292 buffer_position: text::Anchor,
12293 cx: &mut AppContext,
12294) -> Vec<Completion> {
12295 let language = buffer.read(cx).language_at(buffer_position);
12296 let language_name = language.as_ref().map(|language| language.lsp_id());
12297 let snippet_store = project.snippets().read(cx);
12298 let snippets = snippet_store.snippets_for(language_name, cx);
12299
12300 if snippets.is_empty() {
12301 return vec![];
12302 }
12303 let snapshot = buffer.read(cx).text_snapshot();
12304 let chunks = snapshot.reversed_chunks_in_range(text::Anchor::MIN..buffer_position);
12305
12306 let mut lines = chunks.lines();
12307 let Some(line_at) = lines.next().filter(|line| !line.is_empty()) else {
12308 return vec![];
12309 };
12310
12311 let scope = language.map(|language| language.default_scope());
12312 let classifier = CharClassifier::new(scope).for_completion(true);
12313 let mut last_word = line_at
12314 .chars()
12315 .rev()
12316 .take_while(|c| classifier.is_word(*c))
12317 .collect::<String>();
12318 last_word = last_word.chars().rev().collect();
12319 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
12320 let to_lsp = |point: &text::Anchor| {
12321 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
12322 point_to_lsp(end)
12323 };
12324 let lsp_end = to_lsp(&buffer_position);
12325 snippets
12326 .into_iter()
12327 .filter_map(|snippet| {
12328 let matching_prefix = snippet
12329 .prefix
12330 .iter()
12331 .find(|prefix| prefix.starts_with(&last_word))?;
12332 let start = as_offset - last_word.len();
12333 let start = snapshot.anchor_before(start);
12334 let range = start..buffer_position;
12335 let lsp_start = to_lsp(&start);
12336 let lsp_range = lsp::Range {
12337 start: lsp_start,
12338 end: lsp_end,
12339 };
12340 Some(Completion {
12341 old_range: range,
12342 new_text: snippet.body.clone(),
12343 label: CodeLabel {
12344 text: matching_prefix.clone(),
12345 runs: vec![],
12346 filter_range: 0..matching_prefix.len(),
12347 },
12348 server_id: LanguageServerId(usize::MAX),
12349 documentation: snippet.description.clone().map(Documentation::SingleLine),
12350 lsp_completion: lsp::CompletionItem {
12351 label: snippet.prefix.first().unwrap().clone(),
12352 kind: Some(CompletionItemKind::SNIPPET),
12353 label_details: snippet.description.as_ref().map(|description| {
12354 lsp::CompletionItemLabelDetails {
12355 detail: Some(description.clone()),
12356 description: None,
12357 }
12358 }),
12359 insert_text_format: Some(InsertTextFormat::SNIPPET),
12360 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
12361 lsp::InsertReplaceEdit {
12362 new_text: snippet.body.clone(),
12363 insert: lsp_range,
12364 replace: lsp_range,
12365 },
12366 )),
12367 filter_text: Some(snippet.body.clone()),
12368 sort_text: Some(char::MAX.to_string()),
12369 ..Default::default()
12370 },
12371 confirm: None,
12372 })
12373 })
12374 .collect()
12375}
12376
12377impl CompletionProvider for Model<Project> {
12378 fn completions(
12379 &self,
12380 buffer: &Model<Buffer>,
12381 buffer_position: text::Anchor,
12382 options: CompletionContext,
12383 cx: &mut ViewContext<Editor>,
12384 ) -> Task<Result<Vec<Completion>>> {
12385 self.update(cx, |project, cx| {
12386 let snippets = snippet_completions(project, buffer, buffer_position, cx);
12387 let project_completions = project.completions(buffer, buffer_position, options, cx);
12388 cx.background_executor().spawn(async move {
12389 let mut completions = project_completions.await?;
12390 //let snippets = snippets.into_iter().;
12391 completions.extend(snippets);
12392 Ok(completions)
12393 })
12394 })
12395 }
12396
12397 fn resolve_completions(
12398 &self,
12399 buffer: Model<Buffer>,
12400 completion_indices: Vec<usize>,
12401 completions: Arc<RwLock<Box<[Completion]>>>,
12402 cx: &mut ViewContext<Editor>,
12403 ) -> Task<Result<bool>> {
12404 self.update(cx, |project, cx| {
12405 project.resolve_completions(buffer, completion_indices, completions, cx)
12406 })
12407 }
12408
12409 fn apply_additional_edits_for_completion(
12410 &self,
12411 buffer: Model<Buffer>,
12412 completion: Completion,
12413 push_to_history: bool,
12414 cx: &mut ViewContext<Editor>,
12415 ) -> Task<Result<Option<language::Transaction>>> {
12416 self.update(cx, |project, cx| {
12417 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
12418 })
12419 }
12420
12421 fn is_completion_trigger(
12422 &self,
12423 buffer: &Model<Buffer>,
12424 position: language::Anchor,
12425 text: &str,
12426 trigger_in_words: bool,
12427 cx: &mut ViewContext<Editor>,
12428 ) -> bool {
12429 if !EditorSettings::get_global(cx).show_completions_on_input {
12430 return false;
12431 }
12432
12433 let mut chars = text.chars();
12434 let char = if let Some(char) = chars.next() {
12435 char
12436 } else {
12437 return false;
12438 };
12439 if chars.next().is_some() {
12440 return false;
12441 }
12442
12443 let buffer = buffer.read(cx);
12444 let classifier = buffer
12445 .snapshot()
12446 .char_classifier_at(position)
12447 .for_completion(true);
12448 if trigger_in_words && classifier.is_word(char) {
12449 return true;
12450 }
12451
12452 buffer
12453 .completion_triggers()
12454 .iter()
12455 .any(|string| string == text)
12456 }
12457}
12458
12459fn inlay_hint_settings(
12460 location: Anchor,
12461 snapshot: &MultiBufferSnapshot,
12462 cx: &mut ViewContext<'_, Editor>,
12463) -> InlayHintSettings {
12464 let file = snapshot.file_at(location);
12465 let language = snapshot.language_at(location);
12466 let settings = all_language_settings(file, cx);
12467 settings
12468 .language(language.map(|l| l.name()).as_deref())
12469 .inlay_hints
12470}
12471
12472fn consume_contiguous_rows(
12473 contiguous_row_selections: &mut Vec<Selection<Point>>,
12474 selection: &Selection<Point>,
12475 display_map: &DisplaySnapshot,
12476 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
12477) -> (MultiBufferRow, MultiBufferRow) {
12478 contiguous_row_selections.push(selection.clone());
12479 let start_row = MultiBufferRow(selection.start.row);
12480 let mut end_row = ending_row(selection, display_map);
12481
12482 while let Some(next_selection) = selections.peek() {
12483 if next_selection.start.row <= end_row.0 {
12484 end_row = ending_row(next_selection, display_map);
12485 contiguous_row_selections.push(selections.next().unwrap().clone());
12486 } else {
12487 break;
12488 }
12489 }
12490 (start_row, end_row)
12491}
12492
12493fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
12494 if next_selection.end.column > 0 || next_selection.is_empty() {
12495 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
12496 } else {
12497 MultiBufferRow(next_selection.end.row)
12498 }
12499}
12500
12501impl EditorSnapshot {
12502 pub fn remote_selections_in_range<'a>(
12503 &'a self,
12504 range: &'a Range<Anchor>,
12505 collaboration_hub: &dyn CollaborationHub,
12506 cx: &'a AppContext,
12507 ) -> impl 'a + Iterator<Item = RemoteSelection> {
12508 let participant_names = collaboration_hub.user_names(cx);
12509 let participant_indices = collaboration_hub.user_participant_indices(cx);
12510 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
12511 let collaborators_by_replica_id = collaborators_by_peer_id
12512 .iter()
12513 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
12514 .collect::<HashMap<_, _>>();
12515 self.buffer_snapshot
12516 .selections_in_range(range, false)
12517 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
12518 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
12519 let participant_index = participant_indices.get(&collaborator.user_id).copied();
12520 let user_name = participant_names.get(&collaborator.user_id).cloned();
12521 Some(RemoteSelection {
12522 replica_id,
12523 selection,
12524 cursor_shape,
12525 line_mode,
12526 participant_index,
12527 peer_id: collaborator.peer_id,
12528 user_name,
12529 })
12530 })
12531 }
12532
12533 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
12534 self.display_snapshot.buffer_snapshot.language_at(position)
12535 }
12536
12537 pub fn is_focused(&self) -> bool {
12538 self.is_focused
12539 }
12540
12541 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
12542 self.placeholder_text.as_ref()
12543 }
12544
12545 pub fn scroll_position(&self) -> gpui::Point<f32> {
12546 self.scroll_anchor.scroll_position(&self.display_snapshot)
12547 }
12548
12549 fn gutter_dimensions(
12550 &self,
12551 font_id: FontId,
12552 font_size: Pixels,
12553 em_width: Pixels,
12554 max_line_number_width: Pixels,
12555 cx: &AppContext,
12556 ) -> GutterDimensions {
12557 if !self.show_gutter {
12558 return GutterDimensions::default();
12559 }
12560 let descent = cx.text_system().descent(font_id, font_size);
12561
12562 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
12563 matches!(
12564 ProjectSettings::get_global(cx).git.git_gutter,
12565 Some(GitGutterSetting::TrackedFiles)
12566 )
12567 });
12568 let gutter_settings = EditorSettings::get_global(cx).gutter;
12569 let show_line_numbers = self
12570 .show_line_numbers
12571 .unwrap_or(gutter_settings.line_numbers);
12572 let line_gutter_width = if show_line_numbers {
12573 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
12574 let min_width_for_number_on_gutter = em_width * 4.0;
12575 max_line_number_width.max(min_width_for_number_on_gutter)
12576 } else {
12577 0.0.into()
12578 };
12579
12580 let show_code_actions = self
12581 .show_code_actions
12582 .unwrap_or(gutter_settings.code_actions);
12583
12584 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
12585
12586 let git_blame_entries_width = self
12587 .render_git_blame_gutter
12588 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
12589
12590 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
12591 left_padding += if show_code_actions || show_runnables {
12592 em_width * 3.0
12593 } else if show_git_gutter && show_line_numbers {
12594 em_width * 2.0
12595 } else if show_git_gutter || show_line_numbers {
12596 em_width
12597 } else {
12598 px(0.)
12599 };
12600
12601 let right_padding = if gutter_settings.folds && show_line_numbers {
12602 em_width * 4.0
12603 } else if gutter_settings.folds {
12604 em_width * 3.0
12605 } else if show_line_numbers {
12606 em_width
12607 } else {
12608 px(0.)
12609 };
12610
12611 GutterDimensions {
12612 left_padding,
12613 right_padding,
12614 width: line_gutter_width + left_padding + right_padding,
12615 margin: -descent,
12616 git_blame_entries_width,
12617 }
12618 }
12619
12620 pub fn render_fold_toggle(
12621 &self,
12622 buffer_row: MultiBufferRow,
12623 row_contains_cursor: bool,
12624 editor: View<Editor>,
12625 cx: &mut WindowContext,
12626 ) -> Option<AnyElement> {
12627 let folded = self.is_line_folded(buffer_row);
12628
12629 if let Some(crease) = self
12630 .crease_snapshot
12631 .query_row(buffer_row, &self.buffer_snapshot)
12632 {
12633 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
12634 if folded {
12635 editor.update(cx, |editor, cx| {
12636 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
12637 });
12638 } else {
12639 editor.update(cx, |editor, cx| {
12640 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
12641 });
12642 }
12643 });
12644
12645 Some((crease.render_toggle)(
12646 buffer_row,
12647 folded,
12648 toggle_callback,
12649 cx,
12650 ))
12651 } else if folded
12652 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
12653 {
12654 Some(
12655 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
12656 .selected(folded)
12657 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
12658 if folded {
12659 this.unfold_at(&UnfoldAt { buffer_row }, cx);
12660 } else {
12661 this.fold_at(&FoldAt { buffer_row }, cx);
12662 }
12663 }))
12664 .into_any_element(),
12665 )
12666 } else {
12667 None
12668 }
12669 }
12670
12671 pub fn render_crease_trailer(
12672 &self,
12673 buffer_row: MultiBufferRow,
12674 cx: &mut WindowContext,
12675 ) -> Option<AnyElement> {
12676 let folded = self.is_line_folded(buffer_row);
12677 let crease = self
12678 .crease_snapshot
12679 .query_row(buffer_row, &self.buffer_snapshot)?;
12680 Some((crease.render_trailer)(buffer_row, folded, cx))
12681 }
12682}
12683
12684impl Deref for EditorSnapshot {
12685 type Target = DisplaySnapshot;
12686
12687 fn deref(&self) -> &Self::Target {
12688 &self.display_snapshot
12689 }
12690}
12691
12692#[derive(Clone, Debug, PartialEq, Eq)]
12693pub enum EditorEvent {
12694 InputIgnored {
12695 text: Arc<str>,
12696 },
12697 InputHandled {
12698 utf16_range_to_replace: Option<Range<isize>>,
12699 text: Arc<str>,
12700 },
12701 ExcerptsAdded {
12702 buffer: Model<Buffer>,
12703 predecessor: ExcerptId,
12704 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
12705 },
12706 ExcerptsRemoved {
12707 ids: Vec<ExcerptId>,
12708 },
12709 ExcerptsEdited {
12710 ids: Vec<ExcerptId>,
12711 },
12712 ExcerptsExpanded {
12713 ids: Vec<ExcerptId>,
12714 },
12715 BufferEdited,
12716 Edited {
12717 transaction_id: clock::Lamport,
12718 },
12719 Reparsed(BufferId),
12720 Focused,
12721 FocusedIn,
12722 Blurred,
12723 DirtyChanged,
12724 Saved,
12725 TitleChanged,
12726 DiffBaseChanged,
12727 SelectionsChanged {
12728 local: bool,
12729 },
12730 ScrollPositionChanged {
12731 local: bool,
12732 autoscroll: bool,
12733 },
12734 Closed,
12735 TransactionUndone {
12736 transaction_id: clock::Lamport,
12737 },
12738 TransactionBegun {
12739 transaction_id: clock::Lamport,
12740 },
12741}
12742
12743impl EventEmitter<EditorEvent> for Editor {}
12744
12745impl FocusableView for Editor {
12746 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
12747 self.focus_handle.clone()
12748 }
12749}
12750
12751impl Render for Editor {
12752 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
12753 let settings = ThemeSettings::get_global(cx);
12754
12755 let text_style = match self.mode {
12756 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
12757 color: cx.theme().colors().editor_foreground,
12758 font_family: settings.ui_font.family.clone(),
12759 font_features: settings.ui_font.features.clone(),
12760 font_fallbacks: settings.ui_font.fallbacks.clone(),
12761 font_size: rems(0.875).into(),
12762 font_weight: settings.ui_font.weight,
12763 line_height: relative(settings.buffer_line_height.value()),
12764 ..Default::default()
12765 },
12766 EditorMode::Full => TextStyle {
12767 color: cx.theme().colors().editor_foreground,
12768 font_family: settings.buffer_font.family.clone(),
12769 font_features: settings.buffer_font.features.clone(),
12770 font_fallbacks: settings.buffer_font.fallbacks.clone(),
12771 font_size: settings.buffer_font_size(cx).into(),
12772 font_weight: settings.buffer_font.weight,
12773 line_height: relative(settings.buffer_line_height.value()),
12774 ..Default::default()
12775 },
12776 };
12777
12778 let background = match self.mode {
12779 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
12780 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
12781 EditorMode::Full => cx.theme().colors().editor_background,
12782 };
12783
12784 EditorElement::new(
12785 cx.view(),
12786 EditorStyle {
12787 background,
12788 local_player: cx.theme().players().local(),
12789 text: text_style,
12790 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
12791 syntax: cx.theme().syntax().clone(),
12792 status: cx.theme().status().clone(),
12793 inlay_hints_style: HighlightStyle {
12794 color: Some(cx.theme().status().hint),
12795 ..HighlightStyle::default()
12796 },
12797 suggestions_style: HighlightStyle {
12798 color: Some(cx.theme().status().predictive),
12799 ..HighlightStyle::default()
12800 },
12801 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
12802 },
12803 )
12804 }
12805}
12806
12807impl ViewInputHandler for Editor {
12808 fn text_for_range(
12809 &mut self,
12810 range_utf16: Range<usize>,
12811 cx: &mut ViewContext<Self>,
12812 ) -> Option<String> {
12813 Some(
12814 self.buffer
12815 .read(cx)
12816 .read(cx)
12817 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
12818 .collect(),
12819 )
12820 }
12821
12822 fn selected_text_range(
12823 &mut self,
12824 ignore_disabled_input: bool,
12825 cx: &mut ViewContext<Self>,
12826 ) -> Option<UTF16Selection> {
12827 // Prevent the IME menu from appearing when holding down an alphabetic key
12828 // while input is disabled.
12829 if !ignore_disabled_input && !self.input_enabled {
12830 return None;
12831 }
12832
12833 let selection = self.selections.newest::<OffsetUtf16>(cx);
12834 let range = selection.range();
12835
12836 Some(UTF16Selection {
12837 range: range.start.0..range.end.0,
12838 reversed: selection.reversed,
12839 })
12840 }
12841
12842 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
12843 let snapshot = self.buffer.read(cx).read(cx);
12844 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
12845 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
12846 }
12847
12848 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
12849 self.clear_highlights::<InputComposition>(cx);
12850 self.ime_transaction.take();
12851 }
12852
12853 fn replace_text_in_range(
12854 &mut self,
12855 range_utf16: Option<Range<usize>>,
12856 text: &str,
12857 cx: &mut ViewContext<Self>,
12858 ) {
12859 if !self.input_enabled {
12860 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12861 return;
12862 }
12863
12864 self.transact(cx, |this, cx| {
12865 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
12866 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
12867 Some(this.selection_replacement_ranges(range_utf16, cx))
12868 } else {
12869 this.marked_text_ranges(cx)
12870 };
12871
12872 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
12873 let newest_selection_id = this.selections.newest_anchor().id;
12874 this.selections
12875 .all::<OffsetUtf16>(cx)
12876 .iter()
12877 .zip(ranges_to_replace.iter())
12878 .find_map(|(selection, range)| {
12879 if selection.id == newest_selection_id {
12880 Some(
12881 (range.start.0 as isize - selection.head().0 as isize)
12882 ..(range.end.0 as isize - selection.head().0 as isize),
12883 )
12884 } else {
12885 None
12886 }
12887 })
12888 });
12889
12890 cx.emit(EditorEvent::InputHandled {
12891 utf16_range_to_replace: range_to_replace,
12892 text: text.into(),
12893 });
12894
12895 if let Some(new_selected_ranges) = new_selected_ranges {
12896 this.change_selections(None, cx, |selections| {
12897 selections.select_ranges(new_selected_ranges)
12898 });
12899 this.backspace(&Default::default(), cx);
12900 }
12901
12902 this.handle_input(text, cx);
12903 });
12904
12905 if let Some(transaction) = self.ime_transaction {
12906 self.buffer.update(cx, |buffer, cx| {
12907 buffer.group_until_transaction(transaction, cx);
12908 });
12909 }
12910
12911 self.unmark_text(cx);
12912 }
12913
12914 fn replace_and_mark_text_in_range(
12915 &mut self,
12916 range_utf16: Option<Range<usize>>,
12917 text: &str,
12918 new_selected_range_utf16: Option<Range<usize>>,
12919 cx: &mut ViewContext<Self>,
12920 ) {
12921 if !self.input_enabled {
12922 return;
12923 }
12924
12925 let transaction = self.transact(cx, |this, cx| {
12926 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
12927 let snapshot = this.buffer.read(cx).read(cx);
12928 if let Some(relative_range_utf16) = range_utf16.as_ref() {
12929 for marked_range in &mut marked_ranges {
12930 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
12931 marked_range.start.0 += relative_range_utf16.start;
12932 marked_range.start =
12933 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
12934 marked_range.end =
12935 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
12936 }
12937 }
12938 Some(marked_ranges)
12939 } else if let Some(range_utf16) = range_utf16 {
12940 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
12941 Some(this.selection_replacement_ranges(range_utf16, cx))
12942 } else {
12943 None
12944 };
12945
12946 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
12947 let newest_selection_id = this.selections.newest_anchor().id;
12948 this.selections
12949 .all::<OffsetUtf16>(cx)
12950 .iter()
12951 .zip(ranges_to_replace.iter())
12952 .find_map(|(selection, range)| {
12953 if selection.id == newest_selection_id {
12954 Some(
12955 (range.start.0 as isize - selection.head().0 as isize)
12956 ..(range.end.0 as isize - selection.head().0 as isize),
12957 )
12958 } else {
12959 None
12960 }
12961 })
12962 });
12963
12964 cx.emit(EditorEvent::InputHandled {
12965 utf16_range_to_replace: range_to_replace,
12966 text: text.into(),
12967 });
12968
12969 if let Some(ranges) = ranges_to_replace {
12970 this.change_selections(None, cx, |s| s.select_ranges(ranges));
12971 }
12972
12973 let marked_ranges = {
12974 let snapshot = this.buffer.read(cx).read(cx);
12975 this.selections
12976 .disjoint_anchors()
12977 .iter()
12978 .map(|selection| {
12979 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
12980 })
12981 .collect::<Vec<_>>()
12982 };
12983
12984 if text.is_empty() {
12985 this.unmark_text(cx);
12986 } else {
12987 this.highlight_text::<InputComposition>(
12988 marked_ranges.clone(),
12989 HighlightStyle {
12990 underline: Some(UnderlineStyle {
12991 thickness: px(1.),
12992 color: None,
12993 wavy: false,
12994 }),
12995 ..Default::default()
12996 },
12997 cx,
12998 );
12999 }
13000
13001 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
13002 let use_autoclose = this.use_autoclose;
13003 let use_auto_surround = this.use_auto_surround;
13004 this.set_use_autoclose(false);
13005 this.set_use_auto_surround(false);
13006 this.handle_input(text, cx);
13007 this.set_use_autoclose(use_autoclose);
13008 this.set_use_auto_surround(use_auto_surround);
13009
13010 if let Some(new_selected_range) = new_selected_range_utf16 {
13011 let snapshot = this.buffer.read(cx).read(cx);
13012 let new_selected_ranges = marked_ranges
13013 .into_iter()
13014 .map(|marked_range| {
13015 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
13016 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
13017 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
13018 snapshot.clip_offset_utf16(new_start, Bias::Left)
13019 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
13020 })
13021 .collect::<Vec<_>>();
13022
13023 drop(snapshot);
13024 this.change_selections(None, cx, |selections| {
13025 selections.select_ranges(new_selected_ranges)
13026 });
13027 }
13028 });
13029
13030 self.ime_transaction = self.ime_transaction.or(transaction);
13031 if let Some(transaction) = self.ime_transaction {
13032 self.buffer.update(cx, |buffer, cx| {
13033 buffer.group_until_transaction(transaction, cx);
13034 });
13035 }
13036
13037 if self.text_highlights::<InputComposition>(cx).is_none() {
13038 self.ime_transaction.take();
13039 }
13040 }
13041
13042 fn bounds_for_range(
13043 &mut self,
13044 range_utf16: Range<usize>,
13045 element_bounds: gpui::Bounds<Pixels>,
13046 cx: &mut ViewContext<Self>,
13047 ) -> Option<gpui::Bounds<Pixels>> {
13048 let text_layout_details = self.text_layout_details(cx);
13049 let style = &text_layout_details.editor_style;
13050 let font_id = cx.text_system().resolve_font(&style.text.font());
13051 let font_size = style.text.font_size.to_pixels(cx.rem_size());
13052 let line_height = style.text.line_height_in_pixels(cx.rem_size());
13053
13054 let em_width = cx
13055 .text_system()
13056 .typographic_bounds(font_id, font_size, 'm')
13057 .unwrap()
13058 .size
13059 .width;
13060
13061 let snapshot = self.snapshot(cx);
13062 let scroll_position = snapshot.scroll_position();
13063 let scroll_left = scroll_position.x * em_width;
13064
13065 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
13066 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
13067 + self.gutter_dimensions.width;
13068 let y = line_height * (start.row().as_f32() - scroll_position.y);
13069
13070 Some(Bounds {
13071 origin: element_bounds.origin + point(x, y),
13072 size: size(em_width, line_height),
13073 })
13074 }
13075}
13076
13077trait SelectionExt {
13078 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
13079 fn spanned_rows(
13080 &self,
13081 include_end_if_at_line_start: bool,
13082 map: &DisplaySnapshot,
13083 ) -> Range<MultiBufferRow>;
13084}
13085
13086impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
13087 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
13088 let start = self
13089 .start
13090 .to_point(&map.buffer_snapshot)
13091 .to_display_point(map);
13092 let end = self
13093 .end
13094 .to_point(&map.buffer_snapshot)
13095 .to_display_point(map);
13096 if self.reversed {
13097 end..start
13098 } else {
13099 start..end
13100 }
13101 }
13102
13103 fn spanned_rows(
13104 &self,
13105 include_end_if_at_line_start: bool,
13106 map: &DisplaySnapshot,
13107 ) -> Range<MultiBufferRow> {
13108 let start = self.start.to_point(&map.buffer_snapshot);
13109 let mut end = self.end.to_point(&map.buffer_snapshot);
13110 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
13111 end.row -= 1;
13112 }
13113
13114 let buffer_start = map.prev_line_boundary(start).0;
13115 let buffer_end = map.next_line_boundary(end).0;
13116 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
13117 }
13118}
13119
13120impl<T: InvalidationRegion> InvalidationStack<T> {
13121 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
13122 where
13123 S: Clone + ToOffset,
13124 {
13125 while let Some(region) = self.last() {
13126 let all_selections_inside_invalidation_ranges =
13127 if selections.len() == region.ranges().len() {
13128 selections
13129 .iter()
13130 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
13131 .all(|(selection, invalidation_range)| {
13132 let head = selection.head().to_offset(buffer);
13133 invalidation_range.start <= head && invalidation_range.end >= head
13134 })
13135 } else {
13136 false
13137 };
13138
13139 if all_selections_inside_invalidation_ranges {
13140 break;
13141 } else {
13142 self.pop();
13143 }
13144 }
13145 }
13146}
13147
13148impl<T> Default for InvalidationStack<T> {
13149 fn default() -> Self {
13150 Self(Default::default())
13151 }
13152}
13153
13154impl<T> Deref for InvalidationStack<T> {
13155 type Target = Vec<T>;
13156
13157 fn deref(&self) -> &Self::Target {
13158 &self.0
13159 }
13160}
13161
13162impl<T> DerefMut for InvalidationStack<T> {
13163 fn deref_mut(&mut self) -> &mut Self::Target {
13164 &mut self.0
13165 }
13166}
13167
13168impl InvalidationRegion for SnippetState {
13169 fn ranges(&self) -> &[Range<Anchor>] {
13170 &self.ranges[self.active_index]
13171 }
13172}
13173
13174pub fn diagnostic_block_renderer(
13175 diagnostic: Diagnostic,
13176 max_message_rows: Option<u8>,
13177 allow_closing: bool,
13178 _is_valid: bool,
13179) -> RenderBlock {
13180 let (text_without_backticks, code_ranges) =
13181 highlight_diagnostic_message(&diagnostic, max_message_rows);
13182
13183 Box::new(move |cx: &mut BlockContext| {
13184 let group_id: SharedString = cx.block_id.to_string().into();
13185
13186 let mut text_style = cx.text_style().clone();
13187 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
13188 let theme_settings = ThemeSettings::get_global(cx);
13189 text_style.font_family = theme_settings.buffer_font.family.clone();
13190 text_style.font_style = theme_settings.buffer_font.style;
13191 text_style.font_features = theme_settings.buffer_font.features.clone();
13192 text_style.font_weight = theme_settings.buffer_font.weight;
13193
13194 let multi_line_diagnostic = diagnostic.message.contains('\n');
13195
13196 let buttons = |diagnostic: &Diagnostic, block_id: BlockId| {
13197 if multi_line_diagnostic {
13198 v_flex()
13199 } else {
13200 h_flex()
13201 }
13202 .when(allow_closing, |div| {
13203 div.children(diagnostic.is_primary.then(|| {
13204 IconButton::new(("close-block", EntityId::from(block_id)), IconName::XCircle)
13205 .icon_color(Color::Muted)
13206 .size(ButtonSize::Compact)
13207 .style(ButtonStyle::Transparent)
13208 .visible_on_hover(group_id.clone())
13209 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
13210 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
13211 }))
13212 })
13213 .child(
13214 IconButton::new(("copy-block", EntityId::from(block_id)), IconName::Copy)
13215 .icon_color(Color::Muted)
13216 .size(ButtonSize::Compact)
13217 .style(ButtonStyle::Transparent)
13218 .visible_on_hover(group_id.clone())
13219 .on_click({
13220 let message = diagnostic.message.clone();
13221 move |_click, cx| {
13222 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
13223 }
13224 })
13225 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
13226 )
13227 };
13228
13229 let icon_size = buttons(&diagnostic, cx.block_id)
13230 .into_any_element()
13231 .layout_as_root(AvailableSpace::min_size(), cx);
13232
13233 h_flex()
13234 .id(cx.block_id)
13235 .group(group_id.clone())
13236 .relative()
13237 .size_full()
13238 .pl(cx.gutter_dimensions.width)
13239 .w(cx.max_width + cx.gutter_dimensions.width)
13240 .child(
13241 div()
13242 .flex()
13243 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
13244 .flex_shrink(),
13245 )
13246 .child(buttons(&diagnostic, cx.block_id))
13247 .child(div().flex().flex_shrink_0().child(
13248 StyledText::new(text_without_backticks.clone()).with_highlights(
13249 &text_style,
13250 code_ranges.iter().map(|range| {
13251 (
13252 range.clone(),
13253 HighlightStyle {
13254 font_weight: Some(FontWeight::BOLD),
13255 ..Default::default()
13256 },
13257 )
13258 }),
13259 ),
13260 ))
13261 .into_any_element()
13262 })
13263}
13264
13265pub fn highlight_diagnostic_message(
13266 diagnostic: &Diagnostic,
13267 mut max_message_rows: Option<u8>,
13268) -> (SharedString, Vec<Range<usize>>) {
13269 let mut text_without_backticks = String::new();
13270 let mut code_ranges = Vec::new();
13271
13272 if let Some(source) = &diagnostic.source {
13273 text_without_backticks.push_str(source);
13274 code_ranges.push(0..source.len());
13275 text_without_backticks.push_str(": ");
13276 }
13277
13278 let mut prev_offset = 0;
13279 let mut in_code_block = false;
13280 let has_row_limit = max_message_rows.is_some();
13281 let mut newline_indices = diagnostic
13282 .message
13283 .match_indices('\n')
13284 .filter(|_| has_row_limit)
13285 .map(|(ix, _)| ix)
13286 .fuse()
13287 .peekable();
13288
13289 for (quote_ix, _) in diagnostic
13290 .message
13291 .match_indices('`')
13292 .chain([(diagnostic.message.len(), "")])
13293 {
13294 let mut first_newline_ix = None;
13295 let mut last_newline_ix = None;
13296 while let Some(newline_ix) = newline_indices.peek() {
13297 if *newline_ix < quote_ix {
13298 if first_newline_ix.is_none() {
13299 first_newline_ix = Some(*newline_ix);
13300 }
13301 last_newline_ix = Some(*newline_ix);
13302
13303 if let Some(rows_left) = &mut max_message_rows {
13304 if *rows_left == 0 {
13305 break;
13306 } else {
13307 *rows_left -= 1;
13308 }
13309 }
13310 let _ = newline_indices.next();
13311 } else {
13312 break;
13313 }
13314 }
13315 let prev_len = text_without_backticks.len();
13316 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
13317 text_without_backticks.push_str(new_text);
13318 if in_code_block {
13319 code_ranges.push(prev_len..text_without_backticks.len());
13320 }
13321 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
13322 in_code_block = !in_code_block;
13323 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
13324 text_without_backticks.push_str("...");
13325 break;
13326 }
13327 }
13328
13329 (text_without_backticks.into(), code_ranges)
13330}
13331
13332fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
13333 match severity {
13334 DiagnosticSeverity::ERROR => colors.error,
13335 DiagnosticSeverity::WARNING => colors.warning,
13336 DiagnosticSeverity::INFORMATION => colors.info,
13337 DiagnosticSeverity::HINT => colors.info,
13338 _ => colors.ignored,
13339 }
13340}
13341
13342pub fn styled_runs_for_code_label<'a>(
13343 label: &'a CodeLabel,
13344 syntax_theme: &'a theme::SyntaxTheme,
13345) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
13346 let fade_out = HighlightStyle {
13347 fade_out: Some(0.35),
13348 ..Default::default()
13349 };
13350
13351 let mut prev_end = label.filter_range.end;
13352 label
13353 .runs
13354 .iter()
13355 .enumerate()
13356 .flat_map(move |(ix, (range, highlight_id))| {
13357 let style = if let Some(style) = highlight_id.style(syntax_theme) {
13358 style
13359 } else {
13360 return Default::default();
13361 };
13362 let mut muted_style = style;
13363 muted_style.highlight(fade_out);
13364
13365 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
13366 if range.start >= label.filter_range.end {
13367 if range.start > prev_end {
13368 runs.push((prev_end..range.start, fade_out));
13369 }
13370 runs.push((range.clone(), muted_style));
13371 } else if range.end <= label.filter_range.end {
13372 runs.push((range.clone(), style));
13373 } else {
13374 runs.push((range.start..label.filter_range.end, style));
13375 runs.push((label.filter_range.end..range.end, muted_style));
13376 }
13377 prev_end = cmp::max(prev_end, range.end);
13378
13379 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
13380 runs.push((prev_end..label.text.len(), fade_out));
13381 }
13382
13383 runs
13384 })
13385}
13386
13387pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
13388 let mut prev_index = 0;
13389 let mut prev_codepoint: Option<char> = None;
13390 text.char_indices()
13391 .chain([(text.len(), '\0')])
13392 .filter_map(move |(index, codepoint)| {
13393 let prev_codepoint = prev_codepoint.replace(codepoint)?;
13394 let is_boundary = index == text.len()
13395 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
13396 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
13397 if is_boundary {
13398 let chunk = &text[prev_index..index];
13399 prev_index = index;
13400 Some(chunk)
13401 } else {
13402 None
13403 }
13404 })
13405}
13406
13407pub trait RangeToAnchorExt: Sized {
13408 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
13409
13410 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
13411 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
13412 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
13413 }
13414}
13415
13416impl<T: ToOffset> RangeToAnchorExt for Range<T> {
13417 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
13418 let start_offset = self.start.to_offset(snapshot);
13419 let end_offset = self.end.to_offset(snapshot);
13420 if start_offset == end_offset {
13421 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
13422 } else {
13423 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
13424 }
13425 }
13426}
13427
13428pub trait RowExt {
13429 fn as_f32(&self) -> f32;
13430
13431 fn next_row(&self) -> Self;
13432
13433 fn previous_row(&self) -> Self;
13434
13435 fn minus(&self, other: Self) -> u32;
13436}
13437
13438impl RowExt for DisplayRow {
13439 fn as_f32(&self) -> f32 {
13440 self.0 as f32
13441 }
13442
13443 fn next_row(&self) -> Self {
13444 Self(self.0 + 1)
13445 }
13446
13447 fn previous_row(&self) -> Self {
13448 Self(self.0.saturating_sub(1))
13449 }
13450
13451 fn minus(&self, other: Self) -> u32 {
13452 self.0 - other.0
13453 }
13454}
13455
13456impl RowExt for MultiBufferRow {
13457 fn as_f32(&self) -> f32 {
13458 self.0 as f32
13459 }
13460
13461 fn next_row(&self) -> Self {
13462 Self(self.0 + 1)
13463 }
13464
13465 fn previous_row(&self) -> Self {
13466 Self(self.0.saturating_sub(1))
13467 }
13468
13469 fn minus(&self, other: Self) -> u32 {
13470 self.0 - other.0
13471 }
13472}
13473
13474trait RowRangeExt {
13475 type Row;
13476
13477 fn len(&self) -> usize;
13478
13479 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
13480}
13481
13482impl RowRangeExt for Range<MultiBufferRow> {
13483 type Row = MultiBufferRow;
13484
13485 fn len(&self) -> usize {
13486 (self.end.0 - self.start.0) as usize
13487 }
13488
13489 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
13490 (self.start.0..self.end.0).map(MultiBufferRow)
13491 }
13492}
13493
13494impl RowRangeExt for Range<DisplayRow> {
13495 type Row = DisplayRow;
13496
13497 fn len(&self) -> usize {
13498 (self.end.0 - self.start.0) as usize
13499 }
13500
13501 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
13502 (self.start.0..self.end.0).map(DisplayRow)
13503 }
13504}
13505
13506fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
13507 if hunk.diff_base_byte_range.is_empty() {
13508 DiffHunkStatus::Added
13509 } else if hunk.associated_range.is_empty() {
13510 DiffHunkStatus::Removed
13511 } else {
13512 DiffHunkStatus::Modified
13513 }
13514}
13515
13516/// If select range has more than one line, we
13517/// just point the cursor to range.start.
13518fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
13519 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
13520 range
13521 } else {
13522 range.start..range.start
13523 }
13524}