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 code_context_menus;
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;
31pub mod items;
32mod linked_editing_ranges;
33mod lsp_ext;
34mod mouse_context_menu;
35pub mod movement;
36mod persistence;
37mod proposed_changes_editor;
38mod rust_analyzer_ext;
39pub mod scroll;
40mod selections_collection;
41pub mod tasks;
42
43#[cfg(test)]
44mod editor_tests;
45#[cfg(test)]
46mod inline_completion_tests;
47mod signature_help;
48#[cfg(any(test, feature = "test-support"))]
49pub mod test;
50
51use ::git::diff::DiffHunkStatus;
52pub(crate) use actions::*;
53pub use actions::{OpenExcerpts, OpenExcerptsSplit};
54use aho_corasick::AhoCorasick;
55use anyhow::{anyhow, Context as _, Result};
56use blink_manager::BlinkManager;
57use client::{Collaborator, ParticipantIndex};
58use clock::ReplicaId;
59use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
60use convert_case::{Case, Casing};
61use display_map::*;
62pub use display_map::{DisplayPoint, FoldPlaceholder};
63pub use editor_settings::{
64 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
65};
66pub use editor_settings_controls::*;
67use element::LineWithInvisibles;
68pub use element::{
69 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
70};
71use futures::{future, FutureExt};
72use fuzzy::StringMatchCandidate;
73
74use code_context_menus::{
75 AvailableCodeAction, CodeActionContents, CodeActionsItem, CodeActionsMenu, CodeContextMenu,
76 CompletionsMenu, ContextMenuOrigin,
77};
78use git::blame::GitBlame;
79use gpui::{
80 div, impl_actions, point, prelude::*, px, relative, size, Action, AnyElement, AppContext,
81 AsyncWindowContext, AvailableSpace, Bounds, ClipboardEntry, ClipboardItem, Context,
82 DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent, FocusableView, FontId,
83 FontWeight, Global, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, ModelContext,
84 MouseButton, PaintQuad, ParentElement, Pixels, Render, SharedString, Size, Styled, StyledText,
85 Subscription, Task, TextStyle, TextStyleRefinement, UTF16Selection, UnderlineStyle,
86 UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle,
87 WeakView, WindowContext,
88};
89use highlight_matching_bracket::refresh_matching_bracket_highlights;
90use hover_popover::{hide_hover, HoverState};
91pub(crate) use hunk_diff::HoveredHunk;
92use hunk_diff::{diff_hunk_to_display, DiffMap, DiffMapSnapshot};
93use indent_guides::ActiveIndentGuidesState;
94use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
95pub use inline_completion::Direction;
96use inline_completion::{InlineCompletionProvider, InlineCompletionProviderHandle};
97pub use items::MAX_TAB_TITLE_LEN;
98use itertools::Itertools;
99use language::{
100 language_settings::{self, all_language_settings, language_settings, InlayHintSettings},
101 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
102 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
103 Point, Selection, SelectionGoal, TransactionId,
104};
105use language::{point_to_lsp, BufferRow, CharClassifier, Runnable, RunnableRange};
106use linked_editing_ranges::refresh_linked_ranges;
107use mouse_context_menu::MouseContextMenu;
108pub use proposed_changes_editor::{
109 ProposedChangeLocation, ProposedChangesEditor, ProposedChangesEditorToolbar,
110};
111use similar::{ChangeTag, TextDiff};
112use std::iter::Peekable;
113use task::{ResolvedTask, TaskTemplate, TaskVariables};
114
115use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
116pub use lsp::CompletionContext;
117use lsp::{
118 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
119 LanguageServerId, LanguageServerName,
120};
121
122use movement::TextLayoutDetails;
123pub use multi_buffer::{
124 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
125 ToPoint,
126};
127use multi_buffer::{
128 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
129};
130use parking_lot::RwLock;
131use project::{
132 lsp_store::{FormatTarget, FormatTrigger, OpenLspBufferHandle},
133 project_settings::{GitGutterSetting, ProjectSettings},
134 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Location, LocationLink,
135 LspStore, Project, ProjectItem, ProjectTransaction, TaskSourceKind,
136};
137use rand::prelude::*;
138use rpc::{proto::*, ErrorExt};
139use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
140use selections_collection::{
141 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
142};
143use serde::{Deserialize, Serialize};
144use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
145use smallvec::SmallVec;
146use snippet::Snippet;
147use std::{
148 any::TypeId,
149 borrow::Cow,
150 cell::RefCell,
151 cmp::{self, Ordering, Reverse},
152 mem,
153 num::NonZeroU32,
154 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
155 path::{Path, PathBuf},
156 rc::Rc,
157 sync::Arc,
158 time::{Duration, Instant},
159};
160pub use sum_tree::Bias;
161use sum_tree::TreeMap;
162use text::{BufferId, OffsetUtf16, Rope};
163use theme::{
164 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
165 ThemeColors, ThemeSettings,
166};
167use ui::{
168 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
169 PopoverMenuHandle, Tooltip,
170};
171use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
172use workspace::item::{ItemHandle, PreviewTabsSettings};
173use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
174use workspace::{
175 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
176};
177use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
178
179use crate::hover_links::{find_url, find_url_from_range};
180use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
181
182pub const FILE_HEADER_HEIGHT: u32 = 2;
183pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
184pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
185pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
186const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
187const MAX_LINE_LEN: usize = 1024;
188const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
189const MAX_SELECTION_HISTORY_LEN: usize = 1024;
190pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
191#[doc(hidden)]
192pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
193
194pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
195pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
196
197pub fn render_parsed_markdown(
198 element_id: impl Into<ElementId>,
199 parsed: &language::ParsedMarkdown,
200 editor_style: &EditorStyle,
201 workspace: Option<WeakView<Workspace>>,
202 cx: &mut WindowContext,
203) -> InteractiveText {
204 let code_span_background_color = cx
205 .theme()
206 .colors()
207 .editor_document_highlight_read_background;
208
209 let highlights = gpui::combine_highlights(
210 parsed.highlights.iter().filter_map(|(range, highlight)| {
211 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
212 Some((range.clone(), highlight))
213 }),
214 parsed
215 .regions
216 .iter()
217 .zip(&parsed.region_ranges)
218 .filter_map(|(region, range)| {
219 if region.code {
220 Some((
221 range.clone(),
222 HighlightStyle {
223 background_color: Some(code_span_background_color),
224 ..Default::default()
225 },
226 ))
227 } else {
228 None
229 }
230 }),
231 );
232
233 let mut links = Vec::new();
234 let mut link_ranges = Vec::new();
235 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
236 if let Some(link) = region.link.clone() {
237 links.push(link);
238 link_ranges.push(range.clone());
239 }
240 }
241
242 InteractiveText::new(
243 element_id,
244 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
245 )
246 .on_click(link_ranges, move |clicked_range_ix, cx| {
247 match &links[clicked_range_ix] {
248 markdown::Link::Web { url } => cx.open_url(url),
249 markdown::Link::Path { path } => {
250 if let Some(workspace) = &workspace {
251 _ = workspace.update(cx, |workspace, cx| {
252 workspace.open_abs_path(path.clone(), false, cx).detach();
253 });
254 }
255 }
256 }
257 })
258}
259
260#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
261pub(crate) enum InlayId {
262 Suggestion(usize),
263 Hint(usize),
264}
265
266impl InlayId {
267 fn id(&self) -> usize {
268 match self {
269 Self::Suggestion(id) => *id,
270 Self::Hint(id) => *id,
271 }
272 }
273}
274
275enum DiffRowHighlight {}
276enum DocumentHighlightRead {}
277enum DocumentHighlightWrite {}
278enum InputComposition {}
279
280#[derive(Debug, Copy, Clone, PartialEq, Eq)]
281pub enum Navigated {
282 Yes,
283 No,
284}
285
286impl Navigated {
287 pub fn from_bool(yes: bool) -> Navigated {
288 if yes {
289 Navigated::Yes
290 } else {
291 Navigated::No
292 }
293 }
294}
295
296pub fn init_settings(cx: &mut AppContext) {
297 EditorSettings::register(cx);
298}
299
300pub fn init(cx: &mut AppContext) {
301 init_settings(cx);
302
303 workspace::register_project_item::<Editor>(cx);
304 workspace::FollowableViewRegistry::register::<Editor>(cx);
305 workspace::register_serializable_item::<Editor>(cx);
306
307 cx.observe_new_views(
308 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
309 workspace.register_action(Editor::new_file);
310 workspace.register_action(Editor::new_file_vertical);
311 workspace.register_action(Editor::new_file_horizontal);
312 },
313 )
314 .detach();
315
316 cx.on_action(move |_: &workspace::NewFile, cx| {
317 let app_state = workspace::AppState::global(cx);
318 if let Some(app_state) = app_state.upgrade() {
319 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
320 Editor::new_file(workspace, &Default::default(), cx)
321 })
322 .detach();
323 }
324 });
325 cx.on_action(move |_: &workspace::NewWindow, cx| {
326 let app_state = workspace::AppState::global(cx);
327 if let Some(app_state) = app_state.upgrade() {
328 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
329 Editor::new_file(workspace, &Default::default(), cx)
330 })
331 .detach();
332 }
333 });
334 git::project_diff::init(cx);
335}
336
337pub struct SearchWithinRange;
338
339trait InvalidationRegion {
340 fn ranges(&self) -> &[Range<Anchor>];
341}
342
343#[derive(Clone, Debug, PartialEq)]
344pub enum SelectPhase {
345 Begin {
346 position: DisplayPoint,
347 add: bool,
348 click_count: usize,
349 },
350 BeginColumnar {
351 position: DisplayPoint,
352 reset: bool,
353 goal_column: u32,
354 },
355 Extend {
356 position: DisplayPoint,
357 click_count: usize,
358 },
359 Update {
360 position: DisplayPoint,
361 goal_column: u32,
362 scroll_delta: gpui::Point<f32>,
363 },
364 End,
365}
366
367#[derive(Clone, Debug)]
368pub enum SelectMode {
369 Character,
370 Word(Range<Anchor>),
371 Line(Range<Anchor>),
372 All,
373}
374
375#[derive(Copy, Clone, PartialEq, Eq, Debug)]
376pub enum EditorMode {
377 SingleLine { auto_width: bool },
378 AutoHeight { max_lines: usize },
379 Full,
380}
381
382#[derive(Copy, Clone, Debug)]
383pub enum SoftWrap {
384 /// Prefer not to wrap at all.
385 ///
386 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
387 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
388 GitDiff,
389 /// Prefer a single line generally, unless an overly long line is encountered.
390 None,
391 /// Soft wrap lines that exceed the editor width.
392 EditorWidth,
393 /// Soft wrap lines at the preferred line length.
394 Column(u32),
395 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
396 Bounded(u32),
397}
398
399#[derive(Clone)]
400pub struct EditorStyle {
401 pub background: Hsla,
402 pub local_player: PlayerColor,
403 pub text: TextStyle,
404 pub scrollbar_width: Pixels,
405 pub syntax: Arc<SyntaxTheme>,
406 pub status: StatusColors,
407 pub inlay_hints_style: HighlightStyle,
408 pub suggestions_style: HighlightStyle,
409 pub unnecessary_code_fade: f32,
410}
411
412impl Default for EditorStyle {
413 fn default() -> Self {
414 Self {
415 background: Hsla::default(),
416 local_player: PlayerColor::default(),
417 text: TextStyle::default(),
418 scrollbar_width: Pixels::default(),
419 syntax: Default::default(),
420 // HACK: Status colors don't have a real default.
421 // We should look into removing the status colors from the editor
422 // style and retrieve them directly from the theme.
423 status: StatusColors::dark(),
424 inlay_hints_style: HighlightStyle::default(),
425 suggestions_style: HighlightStyle::default(),
426 unnecessary_code_fade: Default::default(),
427 }
428 }
429}
430
431pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
432 let show_background = language_settings::language_settings(None, None, cx)
433 .inlay_hints
434 .show_background;
435
436 HighlightStyle {
437 color: Some(cx.theme().status().hint),
438 background_color: show_background.then(|| cx.theme().status().hint_background),
439 ..HighlightStyle::default()
440 }
441}
442
443type CompletionId = usize;
444
445enum InlineCompletion {
446 Edit(Vec<(Range<Anchor>, String)>),
447 Move(Anchor),
448}
449
450struct InlineCompletionState {
451 inlay_ids: Vec<InlayId>,
452 completion: InlineCompletion,
453 invalidation_range: Range<Anchor>,
454}
455
456enum InlineCompletionHighlight {}
457
458#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
459struct EditorActionId(usize);
460
461impl EditorActionId {
462 pub fn post_inc(&mut self) -> Self {
463 let answer = self.0;
464
465 *self = Self(answer + 1);
466
467 Self(answer)
468 }
469}
470
471// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
472// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
473
474type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
475type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
476
477#[derive(Default)]
478struct ScrollbarMarkerState {
479 scrollbar_size: Size<Pixels>,
480 dirty: bool,
481 markers: Arc<[PaintQuad]>,
482 pending_refresh: Option<Task<Result<()>>>,
483}
484
485impl ScrollbarMarkerState {
486 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
487 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
488 }
489}
490
491#[derive(Clone, Debug)]
492struct RunnableTasks {
493 templates: Vec<(TaskSourceKind, TaskTemplate)>,
494 offset: MultiBufferOffset,
495 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
496 column: u32,
497 // Values of all named captures, including those starting with '_'
498 extra_variables: HashMap<String, String>,
499 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
500 context_range: Range<BufferOffset>,
501}
502
503impl RunnableTasks {
504 fn resolve<'a>(
505 &'a self,
506 cx: &'a task::TaskContext,
507 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
508 self.templates.iter().filter_map(|(kind, template)| {
509 template
510 .resolve_task(&kind.to_id_base(), cx)
511 .map(|task| (kind.clone(), task))
512 })
513 }
514}
515
516#[derive(Clone)]
517struct ResolvedTasks {
518 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
519 position: Anchor,
520}
521#[derive(Copy, Clone, Debug)]
522struct MultiBufferOffset(usize);
523#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
524struct BufferOffset(usize);
525
526// Addons allow storing per-editor state in other crates (e.g. Vim)
527pub trait Addon: 'static {
528 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
529
530 fn to_any(&self) -> &dyn std::any::Any;
531}
532
533#[derive(Debug, Copy, Clone, PartialEq, Eq)]
534pub enum IsVimMode {
535 Yes,
536 No,
537}
538
539/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
540///
541/// See the [module level documentation](self) for more information.
542pub struct Editor {
543 focus_handle: FocusHandle,
544 last_focused_descendant: Option<WeakFocusHandle>,
545 /// The text buffer being edited
546 buffer: Model<MultiBuffer>,
547 /// Map of how text in the buffer should be displayed.
548 /// Handles soft wraps, folds, fake inlay text insertions, etc.
549 pub display_map: Model<DisplayMap>,
550 pub selections: SelectionsCollection,
551 pub scroll_manager: ScrollManager,
552 /// When inline assist editors are linked, they all render cursors because
553 /// typing enters text into each of them, even the ones that aren't focused.
554 pub(crate) show_cursor_when_unfocused: bool,
555 columnar_selection_tail: Option<Anchor>,
556 add_selections_state: Option<AddSelectionsState>,
557 select_next_state: Option<SelectNextState>,
558 select_prev_state: Option<SelectNextState>,
559 selection_history: SelectionHistory,
560 autoclose_regions: Vec<AutocloseRegion>,
561 snippet_stack: InvalidationStack<SnippetState>,
562 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
563 ime_transaction: Option<TransactionId>,
564 active_diagnostics: Option<ActiveDiagnosticGroup>,
565 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
566
567 project: Option<Model<Project>>,
568 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
569 completion_provider: Option<Box<dyn CompletionProvider>>,
570 collaboration_hub: Option<Box<dyn CollaborationHub>>,
571 blink_manager: Model<BlinkManager>,
572 show_cursor_names: bool,
573 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
574 pub show_local_selections: bool,
575 mode: EditorMode,
576 show_breadcrumbs: bool,
577 show_gutter: bool,
578 show_line_numbers: Option<bool>,
579 use_relative_line_numbers: Option<bool>,
580 show_git_diff_gutter: Option<bool>,
581 show_code_actions: Option<bool>,
582 show_runnables: Option<bool>,
583 show_wrap_guides: Option<bool>,
584 show_indent_guides: Option<bool>,
585 placeholder_text: Option<Arc<str>>,
586 highlight_order: usize,
587 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
588 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
589 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
590 scrollbar_marker_state: ScrollbarMarkerState,
591 active_indent_guides_state: ActiveIndentGuidesState,
592 nav_history: Option<ItemNavHistory>,
593 context_menu: RwLock<Option<CodeContextMenu>>,
594 mouse_context_menu: Option<MouseContextMenu>,
595 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
596 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
597 signature_help_state: SignatureHelpState,
598 auto_signature_help: Option<bool>,
599 find_all_references_task_sources: Vec<Anchor>,
600 next_completion_id: CompletionId,
601 available_code_actions: Option<(Location, Arc<[AvailableCodeAction]>)>,
602 code_actions_task: Option<Task<Result<()>>>,
603 document_highlights_task: Option<Task<()>>,
604 linked_editing_range_task: Option<Task<Option<()>>>,
605 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
606 pending_rename: Option<RenameState>,
607 searchable: bool,
608 cursor_shape: CursorShape,
609 current_line_highlight: Option<CurrentLineHighlight>,
610 collapse_matches: bool,
611 autoindent_mode: Option<AutoindentMode>,
612 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
613 input_enabled: bool,
614 use_modal_editing: bool,
615 read_only: bool,
616 leader_peer_id: Option<PeerId>,
617 remote_id: Option<ViewId>,
618 hover_state: HoverState,
619 gutter_hovered: bool,
620 hovered_link_state: Option<HoveredLinkState>,
621 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
622 code_action_providers: Vec<Arc<dyn CodeActionProvider>>,
623 active_inline_completion: Option<InlineCompletionState>,
624 // enable_inline_completions is a switch that Vim can use to disable
625 // inline completions based on its mode.
626 enable_inline_completions: bool,
627 show_inline_completions_override: Option<bool>,
628 inlay_hint_cache: InlayHintCache,
629 diff_map: DiffMap,
630 next_inlay_id: usize,
631 _subscriptions: Vec<Subscription>,
632 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
633 gutter_dimensions: GutterDimensions,
634 style: Option<EditorStyle>,
635 text_style_refinement: Option<TextStyleRefinement>,
636 next_editor_action_id: EditorActionId,
637 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
638 use_autoclose: bool,
639 use_auto_surround: bool,
640 auto_replace_emoji_shortcode: bool,
641 show_git_blame_gutter: bool,
642 show_git_blame_inline: bool,
643 show_git_blame_inline_delay_task: Option<Task<()>>,
644 git_blame_inline_enabled: bool,
645 serialize_dirty_buffers: bool,
646 show_selection_menu: Option<bool>,
647 blame: Option<Model<GitBlame>>,
648 blame_subscription: Option<Subscription>,
649 custom_context_menu: Option<
650 Box<
651 dyn 'static
652 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
653 >,
654 >,
655 last_bounds: Option<Bounds<Pixels>>,
656 expect_bounds_change: Option<Bounds<Pixels>>,
657 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
658 tasks_update_task: Option<Task<()>>,
659 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
660 breadcrumb_header: Option<String>,
661 focused_block: Option<FocusedBlock>,
662 next_scroll_position: NextScrollCursorCenterTopBottom,
663 addons: HashMap<TypeId, Box<dyn Addon>>,
664 registered_buffers: HashMap<BufferId, OpenLspBufferHandle>,
665 _scroll_cursor_center_top_bottom_task: Task<()>,
666}
667
668#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
669enum NextScrollCursorCenterTopBottom {
670 #[default]
671 Center,
672 Top,
673 Bottom,
674}
675
676impl NextScrollCursorCenterTopBottom {
677 fn next(&self) -> Self {
678 match self {
679 Self::Center => Self::Top,
680 Self::Top => Self::Bottom,
681 Self::Bottom => Self::Center,
682 }
683 }
684}
685
686#[derive(Clone)]
687pub struct EditorSnapshot {
688 pub mode: EditorMode,
689 show_gutter: bool,
690 show_line_numbers: Option<bool>,
691 show_git_diff_gutter: Option<bool>,
692 show_code_actions: Option<bool>,
693 show_runnables: Option<bool>,
694 git_blame_gutter_max_author_length: Option<usize>,
695 pub display_snapshot: DisplaySnapshot,
696 pub placeholder_text: Option<Arc<str>>,
697 diff_map: DiffMapSnapshot,
698 is_focused: bool,
699 scroll_anchor: ScrollAnchor,
700 ongoing_scroll: OngoingScroll,
701 current_line_highlight: CurrentLineHighlight,
702 gutter_hovered: bool,
703}
704
705const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
706
707#[derive(Default, Debug, Clone, Copy)]
708pub struct GutterDimensions {
709 pub left_padding: Pixels,
710 pub right_padding: Pixels,
711 pub width: Pixels,
712 pub margin: Pixels,
713 pub git_blame_entries_width: Option<Pixels>,
714}
715
716impl GutterDimensions {
717 /// The full width of the space taken up by the gutter.
718 pub fn full_width(&self) -> Pixels {
719 self.margin + self.width
720 }
721
722 /// The width of the space reserved for the fold indicators,
723 /// use alongside 'justify_end' and `gutter_width` to
724 /// right align content with the line numbers
725 pub fn fold_area_width(&self) -> Pixels {
726 self.margin + self.right_padding
727 }
728}
729
730#[derive(Debug)]
731pub struct RemoteSelection {
732 pub replica_id: ReplicaId,
733 pub selection: Selection<Anchor>,
734 pub cursor_shape: CursorShape,
735 pub peer_id: PeerId,
736 pub line_mode: bool,
737 pub participant_index: Option<ParticipantIndex>,
738 pub user_name: Option<SharedString>,
739}
740
741#[derive(Clone, Debug)]
742struct SelectionHistoryEntry {
743 selections: Arc<[Selection<Anchor>]>,
744 select_next_state: Option<SelectNextState>,
745 select_prev_state: Option<SelectNextState>,
746 add_selections_state: Option<AddSelectionsState>,
747}
748
749enum SelectionHistoryMode {
750 Normal,
751 Undoing,
752 Redoing,
753}
754
755#[derive(Clone, PartialEq, Eq, Hash)]
756struct HoveredCursor {
757 replica_id: u16,
758 selection_id: usize,
759}
760
761impl Default for SelectionHistoryMode {
762 fn default() -> Self {
763 Self::Normal
764 }
765}
766
767#[derive(Default)]
768struct SelectionHistory {
769 #[allow(clippy::type_complexity)]
770 selections_by_transaction:
771 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
772 mode: SelectionHistoryMode,
773 undo_stack: VecDeque<SelectionHistoryEntry>,
774 redo_stack: VecDeque<SelectionHistoryEntry>,
775}
776
777impl SelectionHistory {
778 fn insert_transaction(
779 &mut self,
780 transaction_id: TransactionId,
781 selections: Arc<[Selection<Anchor>]>,
782 ) {
783 self.selections_by_transaction
784 .insert(transaction_id, (selections, None));
785 }
786
787 #[allow(clippy::type_complexity)]
788 fn transaction(
789 &self,
790 transaction_id: TransactionId,
791 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
792 self.selections_by_transaction.get(&transaction_id)
793 }
794
795 #[allow(clippy::type_complexity)]
796 fn transaction_mut(
797 &mut self,
798 transaction_id: TransactionId,
799 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
800 self.selections_by_transaction.get_mut(&transaction_id)
801 }
802
803 fn push(&mut self, entry: SelectionHistoryEntry) {
804 if !entry.selections.is_empty() {
805 match self.mode {
806 SelectionHistoryMode::Normal => {
807 self.push_undo(entry);
808 self.redo_stack.clear();
809 }
810 SelectionHistoryMode::Undoing => self.push_redo(entry),
811 SelectionHistoryMode::Redoing => self.push_undo(entry),
812 }
813 }
814 }
815
816 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
817 if self
818 .undo_stack
819 .back()
820 .map_or(true, |e| e.selections != entry.selections)
821 {
822 self.undo_stack.push_back(entry);
823 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
824 self.undo_stack.pop_front();
825 }
826 }
827 }
828
829 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
830 if self
831 .redo_stack
832 .back()
833 .map_or(true, |e| e.selections != entry.selections)
834 {
835 self.redo_stack.push_back(entry);
836 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
837 self.redo_stack.pop_front();
838 }
839 }
840 }
841}
842
843struct RowHighlight {
844 index: usize,
845 range: Range<Anchor>,
846 color: Hsla,
847 should_autoscroll: bool,
848}
849
850#[derive(Clone, Debug)]
851struct AddSelectionsState {
852 above: bool,
853 stack: Vec<usize>,
854}
855
856#[derive(Clone)]
857struct SelectNextState {
858 query: AhoCorasick,
859 wordwise: bool,
860 done: bool,
861}
862
863impl std::fmt::Debug for SelectNextState {
864 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
865 f.debug_struct(std::any::type_name::<Self>())
866 .field("wordwise", &self.wordwise)
867 .field("done", &self.done)
868 .finish()
869 }
870}
871
872#[derive(Debug)]
873struct AutocloseRegion {
874 selection_id: usize,
875 range: Range<Anchor>,
876 pair: BracketPair,
877}
878
879#[derive(Debug)]
880struct SnippetState {
881 ranges: Vec<Vec<Range<Anchor>>>,
882 active_index: usize,
883 choices: Vec<Option<Vec<String>>>,
884}
885
886#[doc(hidden)]
887pub struct RenameState {
888 pub range: Range<Anchor>,
889 pub old_name: Arc<str>,
890 pub editor: View<Editor>,
891 block_id: CustomBlockId,
892}
893
894struct InvalidationStack<T>(Vec<T>);
895
896struct RegisteredInlineCompletionProvider {
897 provider: Arc<dyn InlineCompletionProviderHandle>,
898 _subscription: Subscription,
899}
900
901#[derive(Debug)]
902struct ActiveDiagnosticGroup {
903 primary_range: Range<Anchor>,
904 primary_message: String,
905 group_id: usize,
906 blocks: HashMap<CustomBlockId, Diagnostic>,
907 is_valid: bool,
908}
909
910#[derive(Serialize, Deserialize, Clone, Debug)]
911pub struct ClipboardSelection {
912 pub len: usize,
913 pub is_entire_line: bool,
914 pub first_line_indent: u32,
915}
916
917#[derive(Debug)]
918pub(crate) struct NavigationData {
919 cursor_anchor: Anchor,
920 cursor_position: Point,
921 scroll_anchor: ScrollAnchor,
922 scroll_top_row: u32,
923}
924
925#[derive(Debug, Clone, Copy, PartialEq, Eq)]
926pub enum GotoDefinitionKind {
927 Symbol,
928 Declaration,
929 Type,
930 Implementation,
931}
932
933#[derive(Debug, Clone)]
934enum InlayHintRefreshReason {
935 Toggle(bool),
936 SettingsChange(InlayHintSettings),
937 NewLinesShown,
938 BufferEdited(HashSet<Arc<Language>>),
939 RefreshRequested,
940 ExcerptsRemoved(Vec<ExcerptId>),
941}
942
943impl InlayHintRefreshReason {
944 fn description(&self) -> &'static str {
945 match self {
946 Self::Toggle(_) => "toggle",
947 Self::SettingsChange(_) => "settings change",
948 Self::NewLinesShown => "new lines shown",
949 Self::BufferEdited(_) => "buffer edited",
950 Self::RefreshRequested => "refresh requested",
951 Self::ExcerptsRemoved(_) => "excerpts removed",
952 }
953 }
954}
955
956pub(crate) struct FocusedBlock {
957 id: BlockId,
958 focus_handle: WeakFocusHandle,
959}
960
961#[derive(Clone)]
962struct JumpData {
963 excerpt_id: ExcerptId,
964 position: Point,
965 anchor: text::Anchor,
966 path: Option<project::ProjectPath>,
967 line_offset_from_top: u32,
968}
969
970impl Editor {
971 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
972 let buffer = cx.new_model(|cx| Buffer::local("", cx));
973 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
974 Self::new(
975 EditorMode::SingleLine { auto_width: false },
976 buffer,
977 None,
978 false,
979 cx,
980 )
981 }
982
983 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
984 let buffer = cx.new_model(|cx| Buffer::local("", cx));
985 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
986 Self::new(EditorMode::Full, buffer, None, false, cx)
987 }
988
989 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
990 let buffer = cx.new_model(|cx| Buffer::local("", cx));
991 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
992 Self::new(
993 EditorMode::SingleLine { auto_width: true },
994 buffer,
995 None,
996 false,
997 cx,
998 )
999 }
1000
1001 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1002 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1003 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1004 Self::new(
1005 EditorMode::AutoHeight { max_lines },
1006 buffer,
1007 None,
1008 false,
1009 cx,
1010 )
1011 }
1012
1013 pub fn for_buffer(
1014 buffer: Model<Buffer>,
1015 project: Option<Model<Project>>,
1016 cx: &mut ViewContext<Self>,
1017 ) -> Self {
1018 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1019 Self::new(EditorMode::Full, buffer, project, false, cx)
1020 }
1021
1022 pub fn for_multibuffer(
1023 buffer: Model<MultiBuffer>,
1024 project: Option<Model<Project>>,
1025 show_excerpt_controls: bool,
1026 cx: &mut ViewContext<Self>,
1027 ) -> Self {
1028 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1029 }
1030
1031 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1032 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1033 let mut clone = Self::new(
1034 self.mode,
1035 self.buffer.clone(),
1036 self.project.clone(),
1037 show_excerpt_controls,
1038 cx,
1039 );
1040 self.display_map.update(cx, |display_map, cx| {
1041 let snapshot = display_map.snapshot(cx);
1042 clone.display_map.update(cx, |display_map, cx| {
1043 display_map.set_state(&snapshot, cx);
1044 });
1045 });
1046 clone.selections.clone_state(&self.selections);
1047 clone.scroll_manager.clone_state(&self.scroll_manager);
1048 clone.searchable = self.searchable;
1049 clone
1050 }
1051
1052 pub fn new(
1053 mode: EditorMode,
1054 buffer: Model<MultiBuffer>,
1055 project: Option<Model<Project>>,
1056 show_excerpt_controls: bool,
1057 cx: &mut ViewContext<Self>,
1058 ) -> Self {
1059 let style = cx.text_style();
1060 let font_size = style.font_size.to_pixels(cx.rem_size());
1061 let editor = cx.view().downgrade();
1062 let fold_placeholder = FoldPlaceholder {
1063 constrain_width: true,
1064 render: Arc::new(move |fold_id, fold_range, cx| {
1065 let editor = editor.clone();
1066 div()
1067 .id(fold_id)
1068 .bg(cx.theme().colors().ghost_element_background)
1069 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1070 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1071 .rounded_sm()
1072 .size_full()
1073 .cursor_pointer()
1074 .child("⋯")
1075 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1076 .on_click(move |_, cx| {
1077 editor
1078 .update(cx, |editor, cx| {
1079 editor.unfold_ranges(
1080 &[fold_range.start..fold_range.end],
1081 true,
1082 false,
1083 cx,
1084 );
1085 cx.stop_propagation();
1086 })
1087 .ok();
1088 })
1089 .into_any()
1090 }),
1091 merge_adjacent: true,
1092 ..Default::default()
1093 };
1094 let display_map = cx.new_model(|cx| {
1095 DisplayMap::new(
1096 buffer.clone(),
1097 style.font(),
1098 font_size,
1099 None,
1100 show_excerpt_controls,
1101 FILE_HEADER_HEIGHT,
1102 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1103 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1104 fold_placeholder,
1105 cx,
1106 )
1107 });
1108
1109 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1110
1111 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1112
1113 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1114 .then(|| language_settings::SoftWrap::None);
1115
1116 let mut project_subscriptions = Vec::new();
1117 if mode == EditorMode::Full {
1118 if let Some(project) = project.as_ref() {
1119 if buffer.read(cx).is_singleton() {
1120 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1121 cx.emit(EditorEvent::TitleChanged);
1122 }));
1123 }
1124 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1125 if let project::Event::RefreshInlayHints = event {
1126 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1127 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1128 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1129 let focus_handle = editor.focus_handle(cx);
1130 if focus_handle.is_focused(cx) {
1131 let snapshot = buffer.read(cx).snapshot();
1132 for (range, snippet) in snippet_edits {
1133 let editor_range =
1134 language::range_from_lsp(*range).to_offset(&snapshot);
1135 editor
1136 .insert_snippet(&[editor_range], snippet.clone(), cx)
1137 .ok();
1138 }
1139 }
1140 }
1141 }
1142 }));
1143 if let Some(task_inventory) = project
1144 .read(cx)
1145 .task_store()
1146 .read(cx)
1147 .task_inventory()
1148 .cloned()
1149 {
1150 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1151 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1152 }));
1153 }
1154 }
1155 }
1156
1157 let buffer_snapshot = buffer.read(cx).snapshot(cx);
1158
1159 let inlay_hint_settings =
1160 inlay_hint_settings(selections.newest_anchor().head(), &buffer_snapshot, cx);
1161 let focus_handle = cx.focus_handle();
1162 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1163 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1164 .detach();
1165 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1166 .detach();
1167 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1168
1169 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1170 Some(false)
1171 } else {
1172 None
1173 };
1174
1175 let mut code_action_providers = Vec::new();
1176 if let Some(project) = project.clone() {
1177 get_unstaged_changes_for_buffers(&project, buffer.read(cx).all_buffers(), cx);
1178 code_action_providers.push(Arc::new(project) as Arc<_>);
1179 }
1180
1181 let mut this = Self {
1182 focus_handle,
1183 show_cursor_when_unfocused: false,
1184 last_focused_descendant: None,
1185 buffer: buffer.clone(),
1186 display_map: display_map.clone(),
1187 selections,
1188 scroll_manager: ScrollManager::new(cx),
1189 columnar_selection_tail: None,
1190 add_selections_state: None,
1191 select_next_state: None,
1192 select_prev_state: None,
1193 selection_history: Default::default(),
1194 autoclose_regions: Default::default(),
1195 snippet_stack: Default::default(),
1196 select_larger_syntax_node_stack: Vec::new(),
1197 ime_transaction: Default::default(),
1198 active_diagnostics: None,
1199 soft_wrap_mode_override,
1200 completion_provider: project.clone().map(|project| Box::new(project) as _),
1201 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1202 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1203 project,
1204 blink_manager: blink_manager.clone(),
1205 show_local_selections: true,
1206 mode,
1207 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1208 show_gutter: mode == EditorMode::Full,
1209 show_line_numbers: None,
1210 use_relative_line_numbers: None,
1211 show_git_diff_gutter: None,
1212 show_code_actions: None,
1213 show_runnables: None,
1214 show_wrap_guides: None,
1215 show_indent_guides,
1216 placeholder_text: None,
1217 highlight_order: 0,
1218 highlighted_rows: HashMap::default(),
1219 background_highlights: Default::default(),
1220 gutter_highlights: TreeMap::default(),
1221 scrollbar_marker_state: ScrollbarMarkerState::default(),
1222 active_indent_guides_state: ActiveIndentGuidesState::default(),
1223 nav_history: None,
1224 context_menu: RwLock::new(None),
1225 mouse_context_menu: None,
1226 hunk_controls_menu_handle: PopoverMenuHandle::default(),
1227 completion_tasks: Default::default(),
1228 signature_help_state: SignatureHelpState::default(),
1229 auto_signature_help: None,
1230 find_all_references_task_sources: Vec::new(),
1231 next_completion_id: 0,
1232 next_inlay_id: 0,
1233 code_action_providers,
1234 available_code_actions: Default::default(),
1235 code_actions_task: Default::default(),
1236 document_highlights_task: Default::default(),
1237 linked_editing_range_task: Default::default(),
1238 pending_rename: Default::default(),
1239 searchable: true,
1240 cursor_shape: EditorSettings::get_global(cx)
1241 .cursor_shape
1242 .unwrap_or_default(),
1243 current_line_highlight: None,
1244 autoindent_mode: Some(AutoindentMode::EachLine),
1245 collapse_matches: false,
1246 workspace: None,
1247 input_enabled: true,
1248 use_modal_editing: mode == EditorMode::Full,
1249 read_only: false,
1250 use_autoclose: true,
1251 use_auto_surround: true,
1252 auto_replace_emoji_shortcode: false,
1253 leader_peer_id: None,
1254 remote_id: None,
1255 hover_state: Default::default(),
1256 hovered_link_state: Default::default(),
1257 inline_completion_provider: None,
1258 active_inline_completion: None,
1259 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1260 diff_map: DiffMap::default(),
1261 gutter_hovered: false,
1262 pixel_position_of_newest_cursor: None,
1263 last_bounds: None,
1264 expect_bounds_change: None,
1265 gutter_dimensions: GutterDimensions::default(),
1266 style: None,
1267 show_cursor_names: false,
1268 hovered_cursors: Default::default(),
1269 next_editor_action_id: EditorActionId::default(),
1270 editor_actions: Rc::default(),
1271 show_inline_completions_override: None,
1272 enable_inline_completions: true,
1273 custom_context_menu: None,
1274 show_git_blame_gutter: false,
1275 show_git_blame_inline: false,
1276 show_selection_menu: None,
1277 show_git_blame_inline_delay_task: None,
1278 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1279 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1280 .session
1281 .restore_unsaved_buffers,
1282 blame: None,
1283 blame_subscription: None,
1284 tasks: Default::default(),
1285 _subscriptions: vec![
1286 cx.observe(&buffer, Self::on_buffer_changed),
1287 cx.subscribe(&buffer, Self::on_buffer_event),
1288 cx.observe(&display_map, Self::on_display_map_changed),
1289 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1290 cx.observe_global::<SettingsStore>(Self::settings_changed),
1291 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1292 cx.observe_window_activation(|editor, cx| {
1293 let active = cx.is_window_active();
1294 editor.blink_manager.update(cx, |blink_manager, cx| {
1295 if active {
1296 blink_manager.enable(cx);
1297 } else {
1298 blink_manager.disable(cx);
1299 }
1300 });
1301 }),
1302 ],
1303 tasks_update_task: None,
1304 linked_edit_ranges: Default::default(),
1305 previous_search_ranges: None,
1306 breadcrumb_header: None,
1307 focused_block: None,
1308 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
1309 addons: HashMap::default(),
1310 registered_buffers: HashMap::default(),
1311 _scroll_cursor_center_top_bottom_task: Task::ready(()),
1312 text_style_refinement: None,
1313 };
1314 this.tasks_update_task = Some(this.refresh_runnables(cx));
1315 this._subscriptions.extend(project_subscriptions);
1316
1317 this.end_selection(cx);
1318 this.scroll_manager.show_scrollbar(cx);
1319
1320 if mode == EditorMode::Full {
1321 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1322 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1323
1324 if this.git_blame_inline_enabled {
1325 this.git_blame_inline_enabled = true;
1326 this.start_git_blame_inline(false, cx);
1327 }
1328
1329 if let Some(buffer) = buffer.read(cx).as_singleton() {
1330 if let Some(project) = this.project.as_ref() {
1331 let lsp_store = project.read(cx).lsp_store();
1332 let handle = lsp_store.update(cx, |lsp_store, cx| {
1333 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1334 });
1335 this.registered_buffers
1336 .insert(buffer.read(cx).remote_id(), handle);
1337 }
1338 }
1339 }
1340
1341 this.report_editor_event("open", None, cx);
1342 this
1343 }
1344
1345 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
1346 self.mouse_context_menu
1347 .as_ref()
1348 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1349 }
1350
1351 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
1352 let mut key_context = KeyContext::new_with_defaults();
1353 key_context.add("Editor");
1354 let mode = match self.mode {
1355 EditorMode::SingleLine { .. } => "single_line",
1356 EditorMode::AutoHeight { .. } => "auto_height",
1357 EditorMode::Full => "full",
1358 };
1359
1360 if EditorSettings::jupyter_enabled(cx) {
1361 key_context.add("jupyter");
1362 }
1363
1364 key_context.set("mode", mode);
1365 if self.pending_rename.is_some() {
1366 key_context.add("renaming");
1367 }
1368 if self.context_menu_visible() {
1369 match self.context_menu.read().as_ref() {
1370 Some(CodeContextMenu::Completions(_)) => {
1371 key_context.add("menu");
1372 key_context.add("showing_completions")
1373 }
1374 Some(CodeContextMenu::CodeActions(_)) => {
1375 key_context.add("menu");
1376 key_context.add("showing_code_actions")
1377 }
1378 None => {}
1379 }
1380 }
1381
1382 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
1383 if !self.focus_handle(cx).contains_focused(cx)
1384 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
1385 {
1386 for addon in self.addons.values() {
1387 addon.extend_key_context(&mut key_context, cx)
1388 }
1389 }
1390
1391 if let Some(extension) = self
1392 .buffer
1393 .read(cx)
1394 .as_singleton()
1395 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1396 {
1397 key_context.set("extension", extension.to_string());
1398 }
1399
1400 if self.has_active_inline_completion() {
1401 key_context.add("copilot_suggestion");
1402 key_context.add("inline_completion");
1403 }
1404
1405 if !self
1406 .selections
1407 .disjoint
1408 .iter()
1409 .all(|selection| selection.start == selection.end)
1410 {
1411 key_context.add("selection");
1412 }
1413
1414 key_context
1415 }
1416
1417 pub fn new_file(
1418 workspace: &mut Workspace,
1419 _: &workspace::NewFile,
1420 cx: &mut ViewContext<Workspace>,
1421 ) {
1422 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
1423 "Failed to create buffer",
1424 cx,
1425 |e, _| match e.error_code() {
1426 ErrorCode::RemoteUpgradeRequired => Some(format!(
1427 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1428 e.error_tag("required").unwrap_or("the latest version")
1429 )),
1430 _ => None,
1431 },
1432 );
1433 }
1434
1435 pub fn new_in_workspace(
1436 workspace: &mut Workspace,
1437 cx: &mut ViewContext<Workspace>,
1438 ) -> Task<Result<View<Editor>>> {
1439 let project = workspace.project().clone();
1440 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1441
1442 cx.spawn(|workspace, mut cx| async move {
1443 let buffer = create.await?;
1444 workspace.update(&mut cx, |workspace, cx| {
1445 let editor =
1446 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
1447 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
1448 editor
1449 })
1450 })
1451 }
1452
1453 fn new_file_vertical(
1454 workspace: &mut Workspace,
1455 _: &workspace::NewFileSplitVertical,
1456 cx: &mut ViewContext<Workspace>,
1457 ) {
1458 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
1459 }
1460
1461 fn new_file_horizontal(
1462 workspace: &mut Workspace,
1463 _: &workspace::NewFileSplitHorizontal,
1464 cx: &mut ViewContext<Workspace>,
1465 ) {
1466 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
1467 }
1468
1469 fn new_file_in_direction(
1470 workspace: &mut Workspace,
1471 direction: SplitDirection,
1472 cx: &mut ViewContext<Workspace>,
1473 ) {
1474 let project = workspace.project().clone();
1475 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1476
1477 cx.spawn(|workspace, mut cx| async move {
1478 let buffer = create.await?;
1479 workspace.update(&mut cx, move |workspace, cx| {
1480 workspace.split_item(
1481 direction,
1482 Box::new(
1483 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1484 ),
1485 cx,
1486 )
1487 })?;
1488 anyhow::Ok(())
1489 })
1490 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1491 ErrorCode::RemoteUpgradeRequired => Some(format!(
1492 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1493 e.error_tag("required").unwrap_or("the latest version")
1494 )),
1495 _ => None,
1496 });
1497 }
1498
1499 pub fn leader_peer_id(&self) -> Option<PeerId> {
1500 self.leader_peer_id
1501 }
1502
1503 pub fn buffer(&self) -> &Model<MultiBuffer> {
1504 &self.buffer
1505 }
1506
1507 pub fn workspace(&self) -> Option<View<Workspace>> {
1508 self.workspace.as_ref()?.0.upgrade()
1509 }
1510
1511 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1512 self.buffer().read(cx).title(cx)
1513 }
1514
1515 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1516 let git_blame_gutter_max_author_length = self
1517 .render_git_blame_gutter(cx)
1518 .then(|| {
1519 if let Some(blame) = self.blame.as_ref() {
1520 let max_author_length =
1521 blame.update(cx, |blame, cx| blame.max_author_length(cx));
1522 Some(max_author_length)
1523 } else {
1524 None
1525 }
1526 })
1527 .flatten();
1528
1529 EditorSnapshot {
1530 mode: self.mode,
1531 show_gutter: self.show_gutter,
1532 show_line_numbers: self.show_line_numbers,
1533 show_git_diff_gutter: self.show_git_diff_gutter,
1534 show_code_actions: self.show_code_actions,
1535 show_runnables: self.show_runnables,
1536 git_blame_gutter_max_author_length,
1537 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1538 scroll_anchor: self.scroll_manager.anchor(),
1539 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1540 placeholder_text: self.placeholder_text.clone(),
1541 diff_map: self.diff_map.snapshot(),
1542 is_focused: self.focus_handle.is_focused(cx),
1543 current_line_highlight: self
1544 .current_line_highlight
1545 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
1546 gutter_hovered: self.gutter_hovered,
1547 }
1548 }
1549
1550 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1551 self.buffer.read(cx).language_at(point, cx)
1552 }
1553
1554 pub fn file_at<T: ToOffset>(
1555 &self,
1556 point: T,
1557 cx: &AppContext,
1558 ) -> Option<Arc<dyn language::File>> {
1559 self.buffer.read(cx).read(cx).file_at(point).cloned()
1560 }
1561
1562 pub fn active_excerpt(
1563 &self,
1564 cx: &AppContext,
1565 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1566 self.buffer
1567 .read(cx)
1568 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1569 }
1570
1571 pub fn mode(&self) -> EditorMode {
1572 self.mode
1573 }
1574
1575 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1576 self.collaboration_hub.as_deref()
1577 }
1578
1579 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1580 self.collaboration_hub = Some(hub);
1581 }
1582
1583 pub fn set_custom_context_menu(
1584 &mut self,
1585 f: impl 'static
1586 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1587 ) {
1588 self.custom_context_menu = Some(Box::new(f))
1589 }
1590
1591 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
1592 self.completion_provider = provider;
1593 }
1594
1595 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
1596 self.semantics_provider.clone()
1597 }
1598
1599 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
1600 self.semantics_provider = provider;
1601 }
1602
1603 pub fn set_inline_completion_provider<T>(
1604 &mut self,
1605 provider: Option<Model<T>>,
1606 cx: &mut ViewContext<Self>,
1607 ) where
1608 T: InlineCompletionProvider,
1609 {
1610 self.inline_completion_provider =
1611 provider.map(|provider| RegisteredInlineCompletionProvider {
1612 _subscription: cx.observe(&provider, |this, _, cx| {
1613 if this.focus_handle.is_focused(cx) {
1614 this.update_visible_inline_completion(cx);
1615 }
1616 }),
1617 provider: Arc::new(provider),
1618 });
1619 self.refresh_inline_completion(false, false, cx);
1620 }
1621
1622 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
1623 self.placeholder_text.as_deref()
1624 }
1625
1626 pub fn set_placeholder_text(
1627 &mut self,
1628 placeholder_text: impl Into<Arc<str>>,
1629 cx: &mut ViewContext<Self>,
1630 ) {
1631 let placeholder_text = Some(placeholder_text.into());
1632 if self.placeholder_text != placeholder_text {
1633 self.placeholder_text = placeholder_text;
1634 cx.notify();
1635 }
1636 }
1637
1638 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1639 self.cursor_shape = cursor_shape;
1640
1641 // Disrupt blink for immediate user feedback that the cursor shape has changed
1642 self.blink_manager.update(cx, BlinkManager::show_cursor);
1643
1644 cx.notify();
1645 }
1646
1647 pub fn set_current_line_highlight(
1648 &mut self,
1649 current_line_highlight: Option<CurrentLineHighlight>,
1650 ) {
1651 self.current_line_highlight = current_line_highlight;
1652 }
1653
1654 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1655 self.collapse_matches = collapse_matches;
1656 }
1657
1658 pub fn register_buffers_with_language_servers(&mut self, cx: &mut ViewContext<Self>) {
1659 let buffers = self.buffer.read(cx).all_buffers();
1660 let Some(lsp_store) = self.lsp_store(cx) else {
1661 return;
1662 };
1663 lsp_store.update(cx, |lsp_store, cx| {
1664 for buffer in buffers {
1665 self.registered_buffers
1666 .entry(buffer.read(cx).remote_id())
1667 .or_insert_with(|| {
1668 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1669 });
1670 }
1671 })
1672 }
1673
1674 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1675 if self.collapse_matches {
1676 return range.start..range.start;
1677 }
1678 range.clone()
1679 }
1680
1681 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1682 if self.display_map.read(cx).clip_at_line_ends != clip {
1683 self.display_map
1684 .update(cx, |map, _| map.clip_at_line_ends = clip);
1685 }
1686 }
1687
1688 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1689 self.input_enabled = input_enabled;
1690 }
1691
1692 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
1693 self.enable_inline_completions = enabled;
1694 }
1695
1696 pub fn set_autoindent(&mut self, autoindent: bool) {
1697 if autoindent {
1698 self.autoindent_mode = Some(AutoindentMode::EachLine);
1699 } else {
1700 self.autoindent_mode = None;
1701 }
1702 }
1703
1704 pub fn read_only(&self, cx: &AppContext) -> bool {
1705 self.read_only || self.buffer.read(cx).read_only()
1706 }
1707
1708 pub fn set_read_only(&mut self, read_only: bool) {
1709 self.read_only = read_only;
1710 }
1711
1712 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1713 self.use_autoclose = autoclose;
1714 }
1715
1716 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
1717 self.use_auto_surround = auto_surround;
1718 }
1719
1720 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1721 self.auto_replace_emoji_shortcode = auto_replace;
1722 }
1723
1724 pub fn toggle_inline_completions(
1725 &mut self,
1726 _: &ToggleInlineCompletions,
1727 cx: &mut ViewContext<Self>,
1728 ) {
1729 if self.show_inline_completions_override.is_some() {
1730 self.set_show_inline_completions(None, cx);
1731 } else {
1732 let cursor = self.selections.newest_anchor().head();
1733 if let Some((buffer, cursor_buffer_position)) =
1734 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1735 {
1736 let show_inline_completions =
1737 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
1738 self.set_show_inline_completions(Some(show_inline_completions), cx);
1739 }
1740 }
1741 }
1742
1743 pub fn set_show_inline_completions(
1744 &mut self,
1745 show_inline_completions: Option<bool>,
1746 cx: &mut ViewContext<Self>,
1747 ) {
1748 self.show_inline_completions_override = show_inline_completions;
1749 self.refresh_inline_completion(false, true, cx);
1750 }
1751
1752 fn should_show_inline_completions(
1753 &self,
1754 buffer: &Model<Buffer>,
1755 buffer_position: language::Anchor,
1756 cx: &AppContext,
1757 ) -> bool {
1758 if !self.snippet_stack.is_empty() {
1759 return false;
1760 }
1761
1762 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
1763 return false;
1764 }
1765
1766 if let Some(provider) = self.inline_completion_provider() {
1767 if let Some(show_inline_completions) = self.show_inline_completions_override {
1768 show_inline_completions
1769 } else {
1770 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
1771 }
1772 } else {
1773 false
1774 }
1775 }
1776
1777 fn inline_completions_disabled_in_scope(
1778 &self,
1779 buffer: &Model<Buffer>,
1780 buffer_position: language::Anchor,
1781 cx: &AppContext,
1782 ) -> bool {
1783 let snapshot = buffer.read(cx).snapshot();
1784 let settings = snapshot.settings_at(buffer_position, cx);
1785
1786 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
1787 return false;
1788 };
1789
1790 scope.override_name().map_or(false, |scope_name| {
1791 settings
1792 .inline_completions_disabled_in
1793 .iter()
1794 .any(|s| s == scope_name)
1795 })
1796 }
1797
1798 pub fn set_use_modal_editing(&mut self, to: bool) {
1799 self.use_modal_editing = to;
1800 }
1801
1802 pub fn use_modal_editing(&self) -> bool {
1803 self.use_modal_editing
1804 }
1805
1806 fn selections_did_change(
1807 &mut self,
1808 local: bool,
1809 old_cursor_position: &Anchor,
1810 show_completions: bool,
1811 cx: &mut ViewContext<Self>,
1812 ) {
1813 cx.invalidate_character_coordinates();
1814
1815 // Copy selections to primary selection buffer
1816 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1817 if local {
1818 let selections = self.selections.all::<usize>(cx);
1819 let buffer_handle = self.buffer.read(cx).read(cx);
1820
1821 let mut text = String::new();
1822 for (index, selection) in selections.iter().enumerate() {
1823 let text_for_selection = buffer_handle
1824 .text_for_range(selection.start..selection.end)
1825 .collect::<String>();
1826
1827 text.push_str(&text_for_selection);
1828 if index != selections.len() - 1 {
1829 text.push('\n');
1830 }
1831 }
1832
1833 if !text.is_empty() {
1834 cx.write_to_primary(ClipboardItem::new_string(text));
1835 }
1836 }
1837
1838 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1839 self.buffer.update(cx, |buffer, cx| {
1840 buffer.set_active_selections(
1841 &self.selections.disjoint_anchors(),
1842 self.selections.line_mode,
1843 self.cursor_shape,
1844 cx,
1845 )
1846 });
1847 }
1848 let display_map = self
1849 .display_map
1850 .update(cx, |display_map, cx| display_map.snapshot(cx));
1851 let buffer = &display_map.buffer_snapshot;
1852 self.add_selections_state = None;
1853 self.select_next_state = None;
1854 self.select_prev_state = None;
1855 self.select_larger_syntax_node_stack.clear();
1856 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1857 self.snippet_stack
1858 .invalidate(&self.selections.disjoint_anchors(), buffer);
1859 self.take_rename(false, cx);
1860
1861 let new_cursor_position = self.selections.newest_anchor().head();
1862
1863 self.push_to_nav_history(
1864 *old_cursor_position,
1865 Some(new_cursor_position.to_point(buffer)),
1866 cx,
1867 );
1868
1869 if local {
1870 let new_cursor_position = self.selections.newest_anchor().head();
1871 let mut context_menu = self.context_menu.write();
1872 let completion_menu = match context_menu.as_ref() {
1873 Some(CodeContextMenu::Completions(menu)) => Some(menu),
1874
1875 _ => {
1876 *context_menu = None;
1877 None
1878 }
1879 };
1880
1881 if let Some(completion_menu) = completion_menu {
1882 let cursor_position = new_cursor_position.to_offset(buffer);
1883 let (word_range, kind) =
1884 buffer.surrounding_word(completion_menu.initial_position, true);
1885 if kind == Some(CharKind::Word)
1886 && word_range.to_inclusive().contains(&cursor_position)
1887 {
1888 let mut completion_menu = completion_menu.clone();
1889 drop(context_menu);
1890
1891 let query = Self::completion_query(buffer, cursor_position);
1892 cx.spawn(move |this, mut cx| async move {
1893 completion_menu
1894 .filter(query.as_deref(), cx.background_executor().clone())
1895 .await;
1896
1897 this.update(&mut cx, |this, cx| {
1898 let mut context_menu = this.context_menu.write();
1899 let Some(CodeContextMenu::Completions(menu)) = context_menu.as_ref()
1900 else {
1901 return;
1902 };
1903
1904 if menu.id > completion_menu.id {
1905 return;
1906 }
1907
1908 *context_menu = Some(CodeContextMenu::Completions(completion_menu));
1909 drop(context_menu);
1910 cx.notify();
1911 })
1912 })
1913 .detach();
1914
1915 if show_completions {
1916 self.show_completions(&ShowCompletions { trigger: None }, cx);
1917 }
1918 } else {
1919 drop(context_menu);
1920 self.hide_context_menu(cx);
1921 }
1922 } else {
1923 drop(context_menu);
1924 }
1925
1926 hide_hover(self, cx);
1927
1928 if old_cursor_position.to_display_point(&display_map).row()
1929 != new_cursor_position.to_display_point(&display_map).row()
1930 {
1931 self.available_code_actions.take();
1932 }
1933 self.refresh_code_actions(cx);
1934 self.refresh_document_highlights(cx);
1935 refresh_matching_bracket_highlights(self, cx);
1936 self.update_visible_inline_completion(cx);
1937 linked_editing_ranges::refresh_linked_ranges(self, cx);
1938 if self.git_blame_inline_enabled {
1939 self.start_inline_blame_timer(cx);
1940 }
1941 }
1942
1943 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1944 cx.emit(EditorEvent::SelectionsChanged { local });
1945
1946 if self.selections.disjoint_anchors().len() == 1 {
1947 cx.emit(SearchEvent::ActiveMatchChanged)
1948 }
1949 cx.notify();
1950 }
1951
1952 pub fn change_selections<R>(
1953 &mut self,
1954 autoscroll: Option<Autoscroll>,
1955 cx: &mut ViewContext<Self>,
1956 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1957 ) -> R {
1958 self.change_selections_inner(autoscroll, true, cx, change)
1959 }
1960
1961 pub fn change_selections_inner<R>(
1962 &mut self,
1963 autoscroll: Option<Autoscroll>,
1964 request_completions: bool,
1965 cx: &mut ViewContext<Self>,
1966 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1967 ) -> R {
1968 let old_cursor_position = self.selections.newest_anchor().head();
1969 self.push_to_selection_history();
1970
1971 let (changed, result) = self.selections.change_with(cx, change);
1972
1973 if changed {
1974 if let Some(autoscroll) = autoscroll {
1975 self.request_autoscroll(autoscroll, cx);
1976 }
1977 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
1978
1979 if self.should_open_signature_help_automatically(
1980 &old_cursor_position,
1981 self.signature_help_state.backspace_pressed(),
1982 cx,
1983 ) {
1984 self.show_signature_help(&ShowSignatureHelp, cx);
1985 }
1986 self.signature_help_state.set_backspace_pressed(false);
1987 }
1988
1989 result
1990 }
1991
1992 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1993 where
1994 I: IntoIterator<Item = (Range<S>, T)>,
1995 S: ToOffset,
1996 T: Into<Arc<str>>,
1997 {
1998 if self.read_only(cx) {
1999 return;
2000 }
2001
2002 self.buffer
2003 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2004 }
2005
2006 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2007 where
2008 I: IntoIterator<Item = (Range<S>, T)>,
2009 S: ToOffset,
2010 T: Into<Arc<str>>,
2011 {
2012 if self.read_only(cx) {
2013 return;
2014 }
2015
2016 self.buffer.update(cx, |buffer, cx| {
2017 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2018 });
2019 }
2020
2021 pub fn edit_with_block_indent<I, S, T>(
2022 &mut self,
2023 edits: I,
2024 original_indent_columns: Vec<u32>,
2025 cx: &mut ViewContext<Self>,
2026 ) where
2027 I: IntoIterator<Item = (Range<S>, T)>,
2028 S: ToOffset,
2029 T: Into<Arc<str>>,
2030 {
2031 if self.read_only(cx) {
2032 return;
2033 }
2034
2035 self.buffer.update(cx, |buffer, cx| {
2036 buffer.edit(
2037 edits,
2038 Some(AutoindentMode::Block {
2039 original_indent_columns,
2040 }),
2041 cx,
2042 )
2043 });
2044 }
2045
2046 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2047 self.hide_context_menu(cx);
2048
2049 match phase {
2050 SelectPhase::Begin {
2051 position,
2052 add,
2053 click_count,
2054 } => self.begin_selection(position, add, click_count, cx),
2055 SelectPhase::BeginColumnar {
2056 position,
2057 goal_column,
2058 reset,
2059 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2060 SelectPhase::Extend {
2061 position,
2062 click_count,
2063 } => self.extend_selection(position, click_count, cx),
2064 SelectPhase::Update {
2065 position,
2066 goal_column,
2067 scroll_delta,
2068 } => self.update_selection(position, goal_column, scroll_delta, cx),
2069 SelectPhase::End => self.end_selection(cx),
2070 }
2071 }
2072
2073 fn extend_selection(
2074 &mut self,
2075 position: DisplayPoint,
2076 click_count: usize,
2077 cx: &mut ViewContext<Self>,
2078 ) {
2079 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2080 let tail = self.selections.newest::<usize>(cx).tail();
2081 self.begin_selection(position, false, click_count, cx);
2082
2083 let position = position.to_offset(&display_map, Bias::Left);
2084 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2085
2086 let mut pending_selection = self
2087 .selections
2088 .pending_anchor()
2089 .expect("extend_selection not called with pending selection");
2090 if position >= tail {
2091 pending_selection.start = tail_anchor;
2092 } else {
2093 pending_selection.end = tail_anchor;
2094 pending_selection.reversed = true;
2095 }
2096
2097 let mut pending_mode = self.selections.pending_mode().unwrap();
2098 match &mut pending_mode {
2099 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2100 _ => {}
2101 }
2102
2103 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2104 s.set_pending(pending_selection, pending_mode)
2105 });
2106 }
2107
2108 fn begin_selection(
2109 &mut self,
2110 position: DisplayPoint,
2111 add: bool,
2112 click_count: usize,
2113 cx: &mut ViewContext<Self>,
2114 ) {
2115 if !self.focus_handle.is_focused(cx) {
2116 self.last_focused_descendant = None;
2117 cx.focus(&self.focus_handle);
2118 }
2119
2120 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2121 let buffer = &display_map.buffer_snapshot;
2122 let newest_selection = self.selections.newest_anchor().clone();
2123 let position = display_map.clip_point(position, Bias::Left);
2124
2125 let start;
2126 let end;
2127 let mode;
2128 let mut auto_scroll;
2129 match click_count {
2130 1 => {
2131 start = buffer.anchor_before(position.to_point(&display_map));
2132 end = start;
2133 mode = SelectMode::Character;
2134 auto_scroll = true;
2135 }
2136 2 => {
2137 let range = movement::surrounding_word(&display_map, position);
2138 start = buffer.anchor_before(range.start.to_point(&display_map));
2139 end = buffer.anchor_before(range.end.to_point(&display_map));
2140 mode = SelectMode::Word(start..end);
2141 auto_scroll = true;
2142 }
2143 3 => {
2144 let position = display_map
2145 .clip_point(position, Bias::Left)
2146 .to_point(&display_map);
2147 let line_start = display_map.prev_line_boundary(position).0;
2148 let next_line_start = buffer.clip_point(
2149 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2150 Bias::Left,
2151 );
2152 start = buffer.anchor_before(line_start);
2153 end = buffer.anchor_before(next_line_start);
2154 mode = SelectMode::Line(start..end);
2155 auto_scroll = true;
2156 }
2157 _ => {
2158 start = buffer.anchor_before(0);
2159 end = buffer.anchor_before(buffer.len());
2160 mode = SelectMode::All;
2161 auto_scroll = false;
2162 }
2163 }
2164 auto_scroll &= EditorSettings::get_global(cx).autoscroll_on_clicks;
2165
2166 let point_to_delete: Option<usize> = {
2167 let selected_points: Vec<Selection<Point>> =
2168 self.selections.disjoint_in_range(start..end, cx);
2169
2170 if !add || click_count > 1 {
2171 None
2172 } else if !selected_points.is_empty() {
2173 Some(selected_points[0].id)
2174 } else {
2175 let clicked_point_already_selected =
2176 self.selections.disjoint.iter().find(|selection| {
2177 selection.start.to_point(buffer) == start.to_point(buffer)
2178 || selection.end.to_point(buffer) == end.to_point(buffer)
2179 });
2180
2181 clicked_point_already_selected.map(|selection| selection.id)
2182 }
2183 };
2184
2185 let selections_count = self.selections.count();
2186
2187 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2188 if let Some(point_to_delete) = point_to_delete {
2189 s.delete(point_to_delete);
2190
2191 if selections_count == 1 {
2192 s.set_pending_anchor_range(start..end, mode);
2193 }
2194 } else {
2195 if !add {
2196 s.clear_disjoint();
2197 } else if click_count > 1 {
2198 s.delete(newest_selection.id)
2199 }
2200
2201 s.set_pending_anchor_range(start..end, mode);
2202 }
2203 });
2204 }
2205
2206 fn begin_columnar_selection(
2207 &mut self,
2208 position: DisplayPoint,
2209 goal_column: u32,
2210 reset: bool,
2211 cx: &mut ViewContext<Self>,
2212 ) {
2213 if !self.focus_handle.is_focused(cx) {
2214 self.last_focused_descendant = None;
2215 cx.focus(&self.focus_handle);
2216 }
2217
2218 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2219
2220 if reset {
2221 let pointer_position = display_map
2222 .buffer_snapshot
2223 .anchor_before(position.to_point(&display_map));
2224
2225 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2226 s.clear_disjoint();
2227 s.set_pending_anchor_range(
2228 pointer_position..pointer_position,
2229 SelectMode::Character,
2230 );
2231 });
2232 }
2233
2234 let tail = self.selections.newest::<Point>(cx).tail();
2235 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2236
2237 if !reset {
2238 self.select_columns(
2239 tail.to_display_point(&display_map),
2240 position,
2241 goal_column,
2242 &display_map,
2243 cx,
2244 );
2245 }
2246 }
2247
2248 fn update_selection(
2249 &mut self,
2250 position: DisplayPoint,
2251 goal_column: u32,
2252 scroll_delta: gpui::Point<f32>,
2253 cx: &mut ViewContext<Self>,
2254 ) {
2255 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2256
2257 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2258 let tail = tail.to_display_point(&display_map);
2259 self.select_columns(tail, position, goal_column, &display_map, cx);
2260 } else if let Some(mut pending) = self.selections.pending_anchor() {
2261 let buffer = self.buffer.read(cx).snapshot(cx);
2262 let head;
2263 let tail;
2264 let mode = self.selections.pending_mode().unwrap();
2265 match &mode {
2266 SelectMode::Character => {
2267 head = position.to_point(&display_map);
2268 tail = pending.tail().to_point(&buffer);
2269 }
2270 SelectMode::Word(original_range) => {
2271 let original_display_range = original_range.start.to_display_point(&display_map)
2272 ..original_range.end.to_display_point(&display_map);
2273 let original_buffer_range = original_display_range.start.to_point(&display_map)
2274 ..original_display_range.end.to_point(&display_map);
2275 if movement::is_inside_word(&display_map, position)
2276 || original_display_range.contains(&position)
2277 {
2278 let word_range = movement::surrounding_word(&display_map, position);
2279 if word_range.start < original_display_range.start {
2280 head = word_range.start.to_point(&display_map);
2281 } else {
2282 head = word_range.end.to_point(&display_map);
2283 }
2284 } else {
2285 head = position.to_point(&display_map);
2286 }
2287
2288 if head <= original_buffer_range.start {
2289 tail = original_buffer_range.end;
2290 } else {
2291 tail = original_buffer_range.start;
2292 }
2293 }
2294 SelectMode::Line(original_range) => {
2295 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2296
2297 let position = display_map
2298 .clip_point(position, Bias::Left)
2299 .to_point(&display_map);
2300 let line_start = display_map.prev_line_boundary(position).0;
2301 let next_line_start = buffer.clip_point(
2302 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2303 Bias::Left,
2304 );
2305
2306 if line_start < original_range.start {
2307 head = line_start
2308 } else {
2309 head = next_line_start
2310 }
2311
2312 if head <= original_range.start {
2313 tail = original_range.end;
2314 } else {
2315 tail = original_range.start;
2316 }
2317 }
2318 SelectMode::All => {
2319 return;
2320 }
2321 };
2322
2323 if head < tail {
2324 pending.start = buffer.anchor_before(head);
2325 pending.end = buffer.anchor_before(tail);
2326 pending.reversed = true;
2327 } else {
2328 pending.start = buffer.anchor_before(tail);
2329 pending.end = buffer.anchor_before(head);
2330 pending.reversed = false;
2331 }
2332
2333 self.change_selections(None, cx, |s| {
2334 s.set_pending(pending, mode);
2335 });
2336 } else {
2337 log::error!("update_selection dispatched with no pending selection");
2338 return;
2339 }
2340
2341 self.apply_scroll_delta(scroll_delta, cx);
2342 cx.notify();
2343 }
2344
2345 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2346 self.columnar_selection_tail.take();
2347 if self.selections.pending_anchor().is_some() {
2348 let selections = self.selections.all::<usize>(cx);
2349 self.change_selections(None, cx, |s| {
2350 s.select(selections);
2351 s.clear_pending();
2352 });
2353 }
2354 }
2355
2356 fn select_columns(
2357 &mut self,
2358 tail: DisplayPoint,
2359 head: DisplayPoint,
2360 goal_column: u32,
2361 display_map: &DisplaySnapshot,
2362 cx: &mut ViewContext<Self>,
2363 ) {
2364 let start_row = cmp::min(tail.row(), head.row());
2365 let end_row = cmp::max(tail.row(), head.row());
2366 let start_column = cmp::min(tail.column(), goal_column);
2367 let end_column = cmp::max(tail.column(), goal_column);
2368 let reversed = start_column < tail.column();
2369
2370 let selection_ranges = (start_row.0..=end_row.0)
2371 .map(DisplayRow)
2372 .filter_map(|row| {
2373 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2374 let start = display_map
2375 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2376 .to_point(display_map);
2377 let end = display_map
2378 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2379 .to_point(display_map);
2380 if reversed {
2381 Some(end..start)
2382 } else {
2383 Some(start..end)
2384 }
2385 } else {
2386 None
2387 }
2388 })
2389 .collect::<Vec<_>>();
2390
2391 self.change_selections(None, cx, |s| {
2392 s.select_ranges(selection_ranges);
2393 });
2394 cx.notify();
2395 }
2396
2397 pub fn has_pending_nonempty_selection(&self) -> bool {
2398 let pending_nonempty_selection = match self.selections.pending_anchor() {
2399 Some(Selection { start, end, .. }) => start != end,
2400 None => false,
2401 };
2402
2403 pending_nonempty_selection
2404 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2405 }
2406
2407 pub fn has_pending_selection(&self) -> bool {
2408 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2409 }
2410
2411 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2412 if self.clear_expanded_diff_hunks(cx) {
2413 cx.notify();
2414 return;
2415 }
2416 if self.dismiss_menus_and_popups(true, cx) {
2417 return;
2418 }
2419
2420 if self.mode == EditorMode::Full
2421 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
2422 {
2423 return;
2424 }
2425
2426 cx.propagate();
2427 }
2428
2429 pub fn dismiss_menus_and_popups(
2430 &mut self,
2431 should_report_inline_completion_event: bool,
2432 cx: &mut ViewContext<Self>,
2433 ) -> bool {
2434 if self.take_rename(false, cx).is_some() {
2435 return true;
2436 }
2437
2438 if hide_hover(self, cx) {
2439 return true;
2440 }
2441
2442 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2443 return true;
2444 }
2445
2446 if self.hide_context_menu(cx).is_some() {
2447 return true;
2448 }
2449
2450 if self.mouse_context_menu.take().is_some() {
2451 return true;
2452 }
2453
2454 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2455 return true;
2456 }
2457
2458 if self.snippet_stack.pop().is_some() {
2459 return true;
2460 }
2461
2462 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
2463 self.dismiss_diagnostics(cx);
2464 return true;
2465 }
2466
2467 false
2468 }
2469
2470 fn linked_editing_ranges_for(
2471 &self,
2472 selection: Range<text::Anchor>,
2473 cx: &AppContext,
2474 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2475 if self.linked_edit_ranges.is_empty() {
2476 return None;
2477 }
2478 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2479 selection.end.buffer_id.and_then(|end_buffer_id| {
2480 if selection.start.buffer_id != Some(end_buffer_id) {
2481 return None;
2482 }
2483 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2484 let snapshot = buffer.read(cx).snapshot();
2485 self.linked_edit_ranges
2486 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2487 .map(|ranges| (ranges, snapshot, buffer))
2488 })?;
2489 use text::ToOffset as TO;
2490 // find offset from the start of current range to current cursor position
2491 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2492
2493 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2494 let start_difference = start_offset - start_byte_offset;
2495 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2496 let end_difference = end_offset - start_byte_offset;
2497 // Current range has associated linked ranges.
2498 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2499 for range in linked_ranges.iter() {
2500 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2501 let end_offset = start_offset + end_difference;
2502 let start_offset = start_offset + start_difference;
2503 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2504 continue;
2505 }
2506 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
2507 if s.start.buffer_id != selection.start.buffer_id
2508 || s.end.buffer_id != selection.end.buffer_id
2509 {
2510 return false;
2511 }
2512 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
2513 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
2514 }) {
2515 continue;
2516 }
2517 let start = buffer_snapshot.anchor_after(start_offset);
2518 let end = buffer_snapshot.anchor_after(end_offset);
2519 linked_edits
2520 .entry(buffer.clone())
2521 .or_default()
2522 .push(start..end);
2523 }
2524 Some(linked_edits)
2525 }
2526
2527 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2528 let text: Arc<str> = text.into();
2529
2530 if self.read_only(cx) {
2531 return;
2532 }
2533
2534 let selections = self.selections.all_adjusted(cx);
2535 let mut bracket_inserted = false;
2536 let mut edits = Vec::new();
2537 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2538 let mut new_selections = Vec::with_capacity(selections.len());
2539 let mut new_autoclose_regions = Vec::new();
2540 let snapshot = self.buffer.read(cx).read(cx);
2541
2542 for (selection, autoclose_region) in
2543 self.selections_with_autoclose_regions(selections, &snapshot)
2544 {
2545 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2546 // Determine if the inserted text matches the opening or closing
2547 // bracket of any of this language's bracket pairs.
2548 let mut bracket_pair = None;
2549 let mut is_bracket_pair_start = false;
2550 let mut is_bracket_pair_end = false;
2551 if !text.is_empty() {
2552 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2553 // and they are removing the character that triggered IME popup.
2554 for (pair, enabled) in scope.brackets() {
2555 if !pair.close && !pair.surround {
2556 continue;
2557 }
2558
2559 if enabled && pair.start.ends_with(text.as_ref()) {
2560 let prefix_len = pair.start.len() - text.len();
2561 let preceding_text_matches_prefix = prefix_len == 0
2562 || (selection.start.column >= (prefix_len as u32)
2563 && snapshot.contains_str_at(
2564 Point::new(
2565 selection.start.row,
2566 selection.start.column - (prefix_len as u32),
2567 ),
2568 &pair.start[..prefix_len],
2569 ));
2570 if preceding_text_matches_prefix {
2571 bracket_pair = Some(pair.clone());
2572 is_bracket_pair_start = true;
2573 break;
2574 }
2575 }
2576 if pair.end.as_str() == text.as_ref() {
2577 bracket_pair = Some(pair.clone());
2578 is_bracket_pair_end = true;
2579 break;
2580 }
2581 }
2582 }
2583
2584 if let Some(bracket_pair) = bracket_pair {
2585 let snapshot_settings = snapshot.settings_at(selection.start, cx);
2586 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
2587 let auto_surround =
2588 self.use_auto_surround && snapshot_settings.use_auto_surround;
2589 if selection.is_empty() {
2590 if is_bracket_pair_start {
2591 // If the inserted text is a suffix of an opening bracket and the
2592 // selection is preceded by the rest of the opening bracket, then
2593 // insert the closing bracket.
2594 let following_text_allows_autoclose = snapshot
2595 .chars_at(selection.start)
2596 .next()
2597 .map_or(true, |c| scope.should_autoclose_before(c));
2598
2599 let is_closing_quote = if bracket_pair.end == bracket_pair.start
2600 && bracket_pair.start.len() == 1
2601 {
2602 let target = bracket_pair.start.chars().next().unwrap();
2603 let current_line_count = snapshot
2604 .reversed_chars_at(selection.start)
2605 .take_while(|&c| c != '\n')
2606 .filter(|&c| c == target)
2607 .count();
2608 current_line_count % 2 == 1
2609 } else {
2610 false
2611 };
2612
2613 if autoclose
2614 && bracket_pair.close
2615 && following_text_allows_autoclose
2616 && !is_closing_quote
2617 {
2618 let anchor = snapshot.anchor_before(selection.end);
2619 new_selections.push((selection.map(|_| anchor), text.len()));
2620 new_autoclose_regions.push((
2621 anchor,
2622 text.len(),
2623 selection.id,
2624 bracket_pair.clone(),
2625 ));
2626 edits.push((
2627 selection.range(),
2628 format!("{}{}", text, bracket_pair.end).into(),
2629 ));
2630 bracket_inserted = true;
2631 continue;
2632 }
2633 }
2634
2635 if let Some(region) = autoclose_region {
2636 // If the selection is followed by an auto-inserted closing bracket,
2637 // then don't insert that closing bracket again; just move the selection
2638 // past the closing bracket.
2639 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2640 && text.as_ref() == region.pair.end.as_str();
2641 if should_skip {
2642 let anchor = snapshot.anchor_after(selection.end);
2643 new_selections
2644 .push((selection.map(|_| anchor), region.pair.end.len()));
2645 continue;
2646 }
2647 }
2648
2649 let always_treat_brackets_as_autoclosed = snapshot
2650 .settings_at(selection.start, cx)
2651 .always_treat_brackets_as_autoclosed;
2652 if always_treat_brackets_as_autoclosed
2653 && is_bracket_pair_end
2654 && snapshot.contains_str_at(selection.end, text.as_ref())
2655 {
2656 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2657 // and the inserted text is a closing bracket and the selection is followed
2658 // by the closing bracket then move the selection past the closing bracket.
2659 let anchor = snapshot.anchor_after(selection.end);
2660 new_selections.push((selection.map(|_| anchor), text.len()));
2661 continue;
2662 }
2663 }
2664 // If an opening bracket is 1 character long and is typed while
2665 // text is selected, then surround that text with the bracket pair.
2666 else if auto_surround
2667 && bracket_pair.surround
2668 && is_bracket_pair_start
2669 && bracket_pair.start.chars().count() == 1
2670 {
2671 edits.push((selection.start..selection.start, text.clone()));
2672 edits.push((
2673 selection.end..selection.end,
2674 bracket_pair.end.as_str().into(),
2675 ));
2676 bracket_inserted = true;
2677 new_selections.push((
2678 Selection {
2679 id: selection.id,
2680 start: snapshot.anchor_after(selection.start),
2681 end: snapshot.anchor_before(selection.end),
2682 reversed: selection.reversed,
2683 goal: selection.goal,
2684 },
2685 0,
2686 ));
2687 continue;
2688 }
2689 }
2690 }
2691
2692 if self.auto_replace_emoji_shortcode
2693 && selection.is_empty()
2694 && text.as_ref().ends_with(':')
2695 {
2696 if let Some(possible_emoji_short_code) =
2697 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2698 {
2699 if !possible_emoji_short_code.is_empty() {
2700 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2701 let emoji_shortcode_start = Point::new(
2702 selection.start.row,
2703 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2704 );
2705
2706 // Remove shortcode from buffer
2707 edits.push((
2708 emoji_shortcode_start..selection.start,
2709 "".to_string().into(),
2710 ));
2711 new_selections.push((
2712 Selection {
2713 id: selection.id,
2714 start: snapshot.anchor_after(emoji_shortcode_start),
2715 end: snapshot.anchor_before(selection.start),
2716 reversed: selection.reversed,
2717 goal: selection.goal,
2718 },
2719 0,
2720 ));
2721
2722 // Insert emoji
2723 let selection_start_anchor = snapshot.anchor_after(selection.start);
2724 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2725 edits.push((selection.start..selection.end, emoji.to_string().into()));
2726
2727 continue;
2728 }
2729 }
2730 }
2731 }
2732
2733 // If not handling any auto-close operation, then just replace the selected
2734 // text with the given input and move the selection to the end of the
2735 // newly inserted text.
2736 let anchor = snapshot.anchor_after(selection.end);
2737 if !self.linked_edit_ranges.is_empty() {
2738 let start_anchor = snapshot.anchor_before(selection.start);
2739
2740 let is_word_char = text.chars().next().map_or(true, |char| {
2741 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
2742 classifier.is_word(char)
2743 });
2744
2745 if is_word_char {
2746 if let Some(ranges) = self
2747 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
2748 {
2749 for (buffer, edits) in ranges {
2750 linked_edits
2751 .entry(buffer.clone())
2752 .or_default()
2753 .extend(edits.into_iter().map(|range| (range, text.clone())));
2754 }
2755 }
2756 }
2757 }
2758
2759 new_selections.push((selection.map(|_| anchor), 0));
2760 edits.push((selection.start..selection.end, text.clone()));
2761 }
2762
2763 drop(snapshot);
2764
2765 self.transact(cx, |this, cx| {
2766 this.buffer.update(cx, |buffer, cx| {
2767 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2768 });
2769 for (buffer, edits) in linked_edits {
2770 buffer.update(cx, |buffer, cx| {
2771 let snapshot = buffer.snapshot();
2772 let edits = edits
2773 .into_iter()
2774 .map(|(range, text)| {
2775 use text::ToPoint as TP;
2776 let end_point = TP::to_point(&range.end, &snapshot);
2777 let start_point = TP::to_point(&range.start, &snapshot);
2778 (start_point..end_point, text)
2779 })
2780 .sorted_by_key(|(range, _)| range.start)
2781 .collect::<Vec<_>>();
2782 buffer.edit(edits, None, cx);
2783 })
2784 }
2785 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2786 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2787 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
2788 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
2789 .zip(new_selection_deltas)
2790 .map(|(selection, delta)| Selection {
2791 id: selection.id,
2792 start: selection.start + delta,
2793 end: selection.end + delta,
2794 reversed: selection.reversed,
2795 goal: SelectionGoal::None,
2796 })
2797 .collect::<Vec<_>>();
2798
2799 let mut i = 0;
2800 for (position, delta, selection_id, pair) in new_autoclose_regions {
2801 let position = position.to_offset(&map.buffer_snapshot) + delta;
2802 let start = map.buffer_snapshot.anchor_before(position);
2803 let end = map.buffer_snapshot.anchor_after(position);
2804 while let Some(existing_state) = this.autoclose_regions.get(i) {
2805 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
2806 Ordering::Less => i += 1,
2807 Ordering::Greater => break,
2808 Ordering::Equal => {
2809 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
2810 Ordering::Less => i += 1,
2811 Ordering::Equal => break,
2812 Ordering::Greater => break,
2813 }
2814 }
2815 }
2816 }
2817 this.autoclose_regions.insert(
2818 i,
2819 AutocloseRegion {
2820 selection_id,
2821 range: start..end,
2822 pair,
2823 },
2824 );
2825 }
2826
2827 let had_active_inline_completion = this.has_active_inline_completion();
2828 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
2829 s.select(new_selections)
2830 });
2831
2832 if !bracket_inserted {
2833 if let Some(on_type_format_task) =
2834 this.trigger_on_type_formatting(text.to_string(), cx)
2835 {
2836 on_type_format_task.detach_and_log_err(cx);
2837 }
2838 }
2839
2840 let editor_settings = EditorSettings::get_global(cx);
2841 if bracket_inserted
2842 && (editor_settings.auto_signature_help
2843 || editor_settings.show_signature_help_after_edits)
2844 {
2845 this.show_signature_help(&ShowSignatureHelp, cx);
2846 }
2847
2848 let trigger_in_words = !had_active_inline_completion;
2849 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2850 linked_editing_ranges::refresh_linked_ranges(this, cx);
2851 this.refresh_inline_completion(true, false, cx);
2852 });
2853 }
2854
2855 fn find_possible_emoji_shortcode_at_position(
2856 snapshot: &MultiBufferSnapshot,
2857 position: Point,
2858 ) -> Option<String> {
2859 let mut chars = Vec::new();
2860 let mut found_colon = false;
2861 for char in snapshot.reversed_chars_at(position).take(100) {
2862 // Found a possible emoji shortcode in the middle of the buffer
2863 if found_colon {
2864 if char.is_whitespace() {
2865 chars.reverse();
2866 return Some(chars.iter().collect());
2867 }
2868 // If the previous character is not a whitespace, we are in the middle of a word
2869 // and we only want to complete the shortcode if the word is made up of other emojis
2870 let mut containing_word = String::new();
2871 for ch in snapshot
2872 .reversed_chars_at(position)
2873 .skip(chars.len() + 1)
2874 .take(100)
2875 {
2876 if ch.is_whitespace() {
2877 break;
2878 }
2879 containing_word.push(ch);
2880 }
2881 let containing_word = containing_word.chars().rev().collect::<String>();
2882 if util::word_consists_of_emojis(containing_word.as_str()) {
2883 chars.reverse();
2884 return Some(chars.iter().collect());
2885 }
2886 }
2887
2888 if char.is_whitespace() || !char.is_ascii() {
2889 return None;
2890 }
2891 if char == ':' {
2892 found_colon = true;
2893 } else {
2894 chars.push(char);
2895 }
2896 }
2897 // Found a possible emoji shortcode at the beginning of the buffer
2898 chars.reverse();
2899 Some(chars.iter().collect())
2900 }
2901
2902 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2903 self.transact(cx, |this, cx| {
2904 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2905 let selections = this.selections.all::<usize>(cx);
2906 let multi_buffer = this.buffer.read(cx);
2907 let buffer = multi_buffer.snapshot(cx);
2908 selections
2909 .iter()
2910 .map(|selection| {
2911 let start_point = selection.start.to_point(&buffer);
2912 let mut indent =
2913 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
2914 indent.len = cmp::min(indent.len, start_point.column);
2915 let start = selection.start;
2916 let end = selection.end;
2917 let selection_is_empty = start == end;
2918 let language_scope = buffer.language_scope_at(start);
2919 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2920 &language_scope
2921 {
2922 let leading_whitespace_len = buffer
2923 .reversed_chars_at(start)
2924 .take_while(|c| c.is_whitespace() && *c != '\n')
2925 .map(|c| c.len_utf8())
2926 .sum::<usize>();
2927
2928 let trailing_whitespace_len = buffer
2929 .chars_at(end)
2930 .take_while(|c| c.is_whitespace() && *c != '\n')
2931 .map(|c| c.len_utf8())
2932 .sum::<usize>();
2933
2934 let insert_extra_newline =
2935 language.brackets().any(|(pair, enabled)| {
2936 let pair_start = pair.start.trim_end();
2937 let pair_end = pair.end.trim_start();
2938
2939 enabled
2940 && pair.newline
2941 && buffer.contains_str_at(
2942 end + trailing_whitespace_len,
2943 pair_end,
2944 )
2945 && buffer.contains_str_at(
2946 (start - leading_whitespace_len)
2947 .saturating_sub(pair_start.len()),
2948 pair_start,
2949 )
2950 });
2951
2952 // Comment extension on newline is allowed only for cursor selections
2953 let comment_delimiter = maybe!({
2954 if !selection_is_empty {
2955 return None;
2956 }
2957
2958 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
2959 return None;
2960 }
2961
2962 let delimiters = language.line_comment_prefixes();
2963 let max_len_of_delimiter =
2964 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2965 let (snapshot, range) =
2966 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
2967
2968 let mut index_of_first_non_whitespace = 0;
2969 let comment_candidate = snapshot
2970 .chars_for_range(range)
2971 .skip_while(|c| {
2972 let should_skip = c.is_whitespace();
2973 if should_skip {
2974 index_of_first_non_whitespace += 1;
2975 }
2976 should_skip
2977 })
2978 .take(max_len_of_delimiter)
2979 .collect::<String>();
2980 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2981 comment_candidate.starts_with(comment_prefix.as_ref())
2982 })?;
2983 let cursor_is_placed_after_comment_marker =
2984 index_of_first_non_whitespace + comment_prefix.len()
2985 <= start_point.column as usize;
2986 if cursor_is_placed_after_comment_marker {
2987 Some(comment_prefix.clone())
2988 } else {
2989 None
2990 }
2991 });
2992 (comment_delimiter, insert_extra_newline)
2993 } else {
2994 (None, false)
2995 };
2996
2997 let capacity_for_delimiter = comment_delimiter
2998 .as_deref()
2999 .map(str::len)
3000 .unwrap_or_default();
3001 let mut new_text =
3002 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3003 new_text.push('\n');
3004 new_text.extend(indent.chars());
3005 if let Some(delimiter) = &comment_delimiter {
3006 new_text.push_str(delimiter);
3007 }
3008 if insert_extra_newline {
3009 new_text = new_text.repeat(2);
3010 }
3011
3012 let anchor = buffer.anchor_after(end);
3013 let new_selection = selection.map(|_| anchor);
3014 (
3015 (start..end, new_text),
3016 (insert_extra_newline, new_selection),
3017 )
3018 })
3019 .unzip()
3020 };
3021
3022 this.edit_with_autoindent(edits, cx);
3023 let buffer = this.buffer.read(cx).snapshot(cx);
3024 let new_selections = selection_fixup_info
3025 .into_iter()
3026 .map(|(extra_newline_inserted, new_selection)| {
3027 let mut cursor = new_selection.end.to_point(&buffer);
3028 if extra_newline_inserted {
3029 cursor.row -= 1;
3030 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3031 }
3032 new_selection.map(|_| cursor)
3033 })
3034 .collect();
3035
3036 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3037 this.refresh_inline_completion(true, false, cx);
3038 });
3039 }
3040
3041 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3042 let buffer = self.buffer.read(cx);
3043 let snapshot = buffer.snapshot(cx);
3044
3045 let mut edits = Vec::new();
3046 let mut rows = Vec::new();
3047
3048 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3049 let cursor = selection.head();
3050 let row = cursor.row;
3051
3052 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3053
3054 let newline = "\n".to_string();
3055 edits.push((start_of_line..start_of_line, newline));
3056
3057 rows.push(row + rows_inserted as u32);
3058 }
3059
3060 self.transact(cx, |editor, cx| {
3061 editor.edit(edits, cx);
3062
3063 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3064 let mut index = 0;
3065 s.move_cursors_with(|map, _, _| {
3066 let row = rows[index];
3067 index += 1;
3068
3069 let point = Point::new(row, 0);
3070 let boundary = map.next_line_boundary(point).1;
3071 let clipped = map.clip_point(boundary, Bias::Left);
3072
3073 (clipped, SelectionGoal::None)
3074 });
3075 });
3076
3077 let mut indent_edits = Vec::new();
3078 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3079 for row in rows {
3080 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3081 for (row, indent) in indents {
3082 if indent.len == 0 {
3083 continue;
3084 }
3085
3086 let text = match indent.kind {
3087 IndentKind::Space => " ".repeat(indent.len as usize),
3088 IndentKind::Tab => "\t".repeat(indent.len as usize),
3089 };
3090 let point = Point::new(row.0, 0);
3091 indent_edits.push((point..point, text));
3092 }
3093 }
3094 editor.edit(indent_edits, cx);
3095 });
3096 }
3097
3098 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3099 let buffer = self.buffer.read(cx);
3100 let snapshot = buffer.snapshot(cx);
3101
3102 let mut edits = Vec::new();
3103 let mut rows = Vec::new();
3104 let mut rows_inserted = 0;
3105
3106 for selection in self.selections.all_adjusted(cx) {
3107 let cursor = selection.head();
3108 let row = cursor.row;
3109
3110 let point = Point::new(row + 1, 0);
3111 let start_of_line = snapshot.clip_point(point, Bias::Left);
3112
3113 let newline = "\n".to_string();
3114 edits.push((start_of_line..start_of_line, newline));
3115
3116 rows_inserted += 1;
3117 rows.push(row + rows_inserted);
3118 }
3119
3120 self.transact(cx, |editor, cx| {
3121 editor.edit(edits, cx);
3122
3123 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3124 let mut index = 0;
3125 s.move_cursors_with(|map, _, _| {
3126 let row = rows[index];
3127 index += 1;
3128
3129 let point = Point::new(row, 0);
3130 let boundary = map.next_line_boundary(point).1;
3131 let clipped = map.clip_point(boundary, Bias::Left);
3132
3133 (clipped, SelectionGoal::None)
3134 });
3135 });
3136
3137 let mut indent_edits = Vec::new();
3138 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3139 for row in rows {
3140 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3141 for (row, indent) in indents {
3142 if indent.len == 0 {
3143 continue;
3144 }
3145
3146 let text = match indent.kind {
3147 IndentKind::Space => " ".repeat(indent.len as usize),
3148 IndentKind::Tab => "\t".repeat(indent.len as usize),
3149 };
3150 let point = Point::new(row.0, 0);
3151 indent_edits.push((point..point, text));
3152 }
3153 }
3154 editor.edit(indent_edits, cx);
3155 });
3156 }
3157
3158 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3159 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3160 original_indent_columns: Vec::new(),
3161 });
3162 self.insert_with_autoindent_mode(text, autoindent, cx);
3163 }
3164
3165 fn insert_with_autoindent_mode(
3166 &mut self,
3167 text: &str,
3168 autoindent_mode: Option<AutoindentMode>,
3169 cx: &mut ViewContext<Self>,
3170 ) {
3171 if self.read_only(cx) {
3172 return;
3173 }
3174
3175 let text: Arc<str> = text.into();
3176 self.transact(cx, |this, cx| {
3177 let old_selections = this.selections.all_adjusted(cx);
3178 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3179 let anchors = {
3180 let snapshot = buffer.read(cx);
3181 old_selections
3182 .iter()
3183 .map(|s| {
3184 let anchor = snapshot.anchor_after(s.head());
3185 s.map(|_| anchor)
3186 })
3187 .collect::<Vec<_>>()
3188 };
3189 buffer.edit(
3190 old_selections
3191 .iter()
3192 .map(|s| (s.start..s.end, text.clone())),
3193 autoindent_mode,
3194 cx,
3195 );
3196 anchors
3197 });
3198
3199 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3200 s.select_anchors(selection_anchors);
3201 })
3202 });
3203 }
3204
3205 fn trigger_completion_on_input(
3206 &mut self,
3207 text: &str,
3208 trigger_in_words: bool,
3209 cx: &mut ViewContext<Self>,
3210 ) {
3211 if self.is_completion_trigger(text, trigger_in_words, cx) {
3212 self.show_completions(
3213 &ShowCompletions {
3214 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3215 },
3216 cx,
3217 );
3218 } else {
3219 self.hide_context_menu(cx);
3220 }
3221 }
3222
3223 fn is_completion_trigger(
3224 &self,
3225 text: &str,
3226 trigger_in_words: bool,
3227 cx: &mut ViewContext<Self>,
3228 ) -> bool {
3229 let position = self.selections.newest_anchor().head();
3230 let multibuffer = self.buffer.read(cx);
3231 let Some(buffer) = position
3232 .buffer_id
3233 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3234 else {
3235 return false;
3236 };
3237
3238 if let Some(completion_provider) = &self.completion_provider {
3239 completion_provider.is_completion_trigger(
3240 &buffer,
3241 position.text_anchor,
3242 text,
3243 trigger_in_words,
3244 cx,
3245 )
3246 } else {
3247 false
3248 }
3249 }
3250
3251 /// If any empty selections is touching the start of its innermost containing autoclose
3252 /// region, expand it to select the brackets.
3253 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3254 let selections = self.selections.all::<usize>(cx);
3255 let buffer = self.buffer.read(cx).read(cx);
3256 let new_selections = self
3257 .selections_with_autoclose_regions(selections, &buffer)
3258 .map(|(mut selection, region)| {
3259 if !selection.is_empty() {
3260 return selection;
3261 }
3262
3263 if let Some(region) = region {
3264 let mut range = region.range.to_offset(&buffer);
3265 if selection.start == range.start && range.start >= region.pair.start.len() {
3266 range.start -= region.pair.start.len();
3267 if buffer.contains_str_at(range.start, ®ion.pair.start)
3268 && buffer.contains_str_at(range.end, ®ion.pair.end)
3269 {
3270 range.end += region.pair.end.len();
3271 selection.start = range.start;
3272 selection.end = range.end;
3273
3274 return selection;
3275 }
3276 }
3277 }
3278
3279 let always_treat_brackets_as_autoclosed = buffer
3280 .settings_at(selection.start, cx)
3281 .always_treat_brackets_as_autoclosed;
3282
3283 if !always_treat_brackets_as_autoclosed {
3284 return selection;
3285 }
3286
3287 if let Some(scope) = buffer.language_scope_at(selection.start) {
3288 for (pair, enabled) in scope.brackets() {
3289 if !enabled || !pair.close {
3290 continue;
3291 }
3292
3293 if buffer.contains_str_at(selection.start, &pair.end) {
3294 let pair_start_len = pair.start.len();
3295 if buffer.contains_str_at(
3296 selection.start.saturating_sub(pair_start_len),
3297 &pair.start,
3298 ) {
3299 selection.start -= pair_start_len;
3300 selection.end += pair.end.len();
3301
3302 return selection;
3303 }
3304 }
3305 }
3306 }
3307
3308 selection
3309 })
3310 .collect();
3311
3312 drop(buffer);
3313 self.change_selections(None, cx, |selections| selections.select(new_selections));
3314 }
3315
3316 /// Iterate the given selections, and for each one, find the smallest surrounding
3317 /// autoclose region. This uses the ordering of the selections and the autoclose
3318 /// regions to avoid repeated comparisons.
3319 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3320 &'a self,
3321 selections: impl IntoIterator<Item = Selection<D>>,
3322 buffer: &'a MultiBufferSnapshot,
3323 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3324 let mut i = 0;
3325 let mut regions = self.autoclose_regions.as_slice();
3326 selections.into_iter().map(move |selection| {
3327 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3328
3329 let mut enclosing = None;
3330 while let Some(pair_state) = regions.get(i) {
3331 if pair_state.range.end.to_offset(buffer) < range.start {
3332 regions = ®ions[i + 1..];
3333 i = 0;
3334 } else if pair_state.range.start.to_offset(buffer) > range.end {
3335 break;
3336 } else {
3337 if pair_state.selection_id == selection.id {
3338 enclosing = Some(pair_state);
3339 }
3340 i += 1;
3341 }
3342 }
3343
3344 (selection, enclosing)
3345 })
3346 }
3347
3348 /// Remove any autoclose regions that no longer contain their selection.
3349 fn invalidate_autoclose_regions(
3350 &mut self,
3351 mut selections: &[Selection<Anchor>],
3352 buffer: &MultiBufferSnapshot,
3353 ) {
3354 self.autoclose_regions.retain(|state| {
3355 let mut i = 0;
3356 while let Some(selection) = selections.get(i) {
3357 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3358 selections = &selections[1..];
3359 continue;
3360 }
3361 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3362 break;
3363 }
3364 if selection.id == state.selection_id {
3365 return true;
3366 } else {
3367 i += 1;
3368 }
3369 }
3370 false
3371 });
3372 }
3373
3374 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3375 let offset = position.to_offset(buffer);
3376 let (word_range, kind) = buffer.surrounding_word(offset, true);
3377 if offset > word_range.start && kind == Some(CharKind::Word) {
3378 Some(
3379 buffer
3380 .text_for_range(word_range.start..offset)
3381 .collect::<String>(),
3382 )
3383 } else {
3384 None
3385 }
3386 }
3387
3388 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3389 self.refresh_inlay_hints(
3390 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3391 cx,
3392 );
3393 }
3394
3395 pub fn inlay_hints_enabled(&self) -> bool {
3396 self.inlay_hint_cache.enabled
3397 }
3398
3399 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3400 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
3401 return;
3402 }
3403
3404 let reason_description = reason.description();
3405 let ignore_debounce = matches!(
3406 reason,
3407 InlayHintRefreshReason::SettingsChange(_)
3408 | InlayHintRefreshReason::Toggle(_)
3409 | InlayHintRefreshReason::ExcerptsRemoved(_)
3410 );
3411 let (invalidate_cache, required_languages) = match reason {
3412 InlayHintRefreshReason::Toggle(enabled) => {
3413 self.inlay_hint_cache.enabled = enabled;
3414 if enabled {
3415 (InvalidationStrategy::RefreshRequested, None)
3416 } else {
3417 self.inlay_hint_cache.clear();
3418 self.splice_inlays(
3419 self.visible_inlay_hints(cx)
3420 .iter()
3421 .map(|inlay| inlay.id)
3422 .collect(),
3423 Vec::new(),
3424 cx,
3425 );
3426 return;
3427 }
3428 }
3429 InlayHintRefreshReason::SettingsChange(new_settings) => {
3430 match self.inlay_hint_cache.update_settings(
3431 &self.buffer,
3432 new_settings,
3433 self.visible_inlay_hints(cx),
3434 cx,
3435 ) {
3436 ControlFlow::Break(Some(InlaySplice {
3437 to_remove,
3438 to_insert,
3439 })) => {
3440 self.splice_inlays(to_remove, to_insert, cx);
3441 return;
3442 }
3443 ControlFlow::Break(None) => return,
3444 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3445 }
3446 }
3447 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3448 if let Some(InlaySplice {
3449 to_remove,
3450 to_insert,
3451 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3452 {
3453 self.splice_inlays(to_remove, to_insert, cx);
3454 }
3455 return;
3456 }
3457 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3458 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3459 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3460 }
3461 InlayHintRefreshReason::RefreshRequested => {
3462 (InvalidationStrategy::RefreshRequested, None)
3463 }
3464 };
3465
3466 if let Some(InlaySplice {
3467 to_remove,
3468 to_insert,
3469 }) = self.inlay_hint_cache.spawn_hint_refresh(
3470 reason_description,
3471 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3472 invalidate_cache,
3473 ignore_debounce,
3474 cx,
3475 ) {
3476 self.splice_inlays(to_remove, to_insert, cx);
3477 }
3478 }
3479
3480 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3481 self.display_map
3482 .read(cx)
3483 .current_inlays()
3484 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3485 .cloned()
3486 .collect()
3487 }
3488
3489 pub fn excerpts_for_inlay_hints_query(
3490 &self,
3491 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3492 cx: &mut ViewContext<Editor>,
3493 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3494 let Some(project) = self.project.as_ref() else {
3495 return HashMap::default();
3496 };
3497 let project = project.read(cx);
3498 let multi_buffer = self.buffer().read(cx);
3499 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3500 let multi_buffer_visible_start = self
3501 .scroll_manager
3502 .anchor()
3503 .anchor
3504 .to_point(&multi_buffer_snapshot);
3505 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3506 multi_buffer_visible_start
3507 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3508 Bias::Left,
3509 );
3510 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3511 multi_buffer
3512 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3513 .into_iter()
3514 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3515 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3516 let buffer = buffer_handle.read(cx);
3517 let buffer_file = project::File::from_dyn(buffer.file())?;
3518 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3519 let worktree_entry = buffer_worktree
3520 .read(cx)
3521 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3522 if worktree_entry.is_ignored {
3523 return None;
3524 }
3525
3526 let language = buffer.language()?;
3527 if let Some(restrict_to_languages) = restrict_to_languages {
3528 if !restrict_to_languages.contains(language) {
3529 return None;
3530 }
3531 }
3532 Some((
3533 excerpt_id,
3534 (
3535 buffer_handle,
3536 buffer.version().clone(),
3537 excerpt_visible_range,
3538 ),
3539 ))
3540 })
3541 .collect()
3542 }
3543
3544 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3545 TextLayoutDetails {
3546 text_system: cx.text_system().clone(),
3547 editor_style: self.style.clone().unwrap(),
3548 rem_size: cx.rem_size(),
3549 scroll_anchor: self.scroll_manager.anchor(),
3550 visible_rows: self.visible_line_count(),
3551 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3552 }
3553 }
3554
3555 fn splice_inlays(
3556 &self,
3557 to_remove: Vec<InlayId>,
3558 to_insert: Vec<Inlay>,
3559 cx: &mut ViewContext<Self>,
3560 ) {
3561 self.display_map.update(cx, |display_map, cx| {
3562 display_map.splice_inlays(to_remove, to_insert, cx)
3563 });
3564 cx.notify();
3565 }
3566
3567 fn trigger_on_type_formatting(
3568 &self,
3569 input: String,
3570 cx: &mut ViewContext<Self>,
3571 ) -> Option<Task<Result<()>>> {
3572 if input.len() != 1 {
3573 return None;
3574 }
3575
3576 let project = self.project.as_ref()?;
3577 let position = self.selections.newest_anchor().head();
3578 let (buffer, buffer_position) = self
3579 .buffer
3580 .read(cx)
3581 .text_anchor_for_position(position, cx)?;
3582
3583 let settings = language_settings::language_settings(
3584 buffer
3585 .read(cx)
3586 .language_at(buffer_position)
3587 .map(|l| l.name()),
3588 buffer.read(cx).file(),
3589 cx,
3590 );
3591 if !settings.use_on_type_format {
3592 return None;
3593 }
3594
3595 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3596 // hence we do LSP request & edit on host side only — add formats to host's history.
3597 let push_to_lsp_host_history = true;
3598 // If this is not the host, append its history with new edits.
3599 let push_to_client_history = project.read(cx).is_via_collab();
3600
3601 let on_type_formatting = project.update(cx, |project, cx| {
3602 project.on_type_format(
3603 buffer.clone(),
3604 buffer_position,
3605 input,
3606 push_to_lsp_host_history,
3607 cx,
3608 )
3609 });
3610 Some(cx.spawn(|editor, mut cx| async move {
3611 if let Some(transaction) = on_type_formatting.await? {
3612 if push_to_client_history {
3613 buffer
3614 .update(&mut cx, |buffer, _| {
3615 buffer.push_transaction(transaction, Instant::now());
3616 })
3617 .ok();
3618 }
3619 editor.update(&mut cx, |editor, cx| {
3620 editor.refresh_document_highlights(cx);
3621 })?;
3622 }
3623 Ok(())
3624 }))
3625 }
3626
3627 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
3628 if self.pending_rename.is_some() {
3629 return;
3630 }
3631
3632 let Some(provider) = self.completion_provider.as_ref() else {
3633 return;
3634 };
3635
3636 if !self.snippet_stack.is_empty() && self.context_menu.read().as_ref().is_some() {
3637 return;
3638 }
3639
3640 let position = self.selections.newest_anchor().head();
3641 let (buffer, buffer_position) =
3642 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3643 output
3644 } else {
3645 return;
3646 };
3647 let show_completion_documentation = buffer
3648 .read(cx)
3649 .snapshot()
3650 .settings_at(buffer_position, cx)
3651 .show_completion_documentation;
3652
3653 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3654
3655 let aside_was_displayed = match self.context_menu.read().deref() {
3656 Some(CodeContextMenu::Completions(menu)) => menu.aside_was_displayed.get(),
3657 _ => false,
3658 };
3659 let trigger_kind = match &options.trigger {
3660 Some(trigger) if buffer.read(cx).completion_triggers().contains(trigger) => {
3661 CompletionTriggerKind::TRIGGER_CHARACTER
3662 }
3663 _ => CompletionTriggerKind::INVOKED,
3664 };
3665 let completion_context = CompletionContext {
3666 trigger_character: options.trigger.as_ref().and_then(|trigger| {
3667 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
3668 Some(String::from(trigger))
3669 } else {
3670 None
3671 }
3672 }),
3673 trigger_kind,
3674 };
3675 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
3676 let sort_completions = provider.sort_completions();
3677
3678 let id = post_inc(&mut self.next_completion_id);
3679 let task = cx.spawn(|editor, mut cx| {
3680 async move {
3681 editor.update(&mut cx, |this, _| {
3682 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3683 })?;
3684 let completions = completions.await.log_err();
3685 let menu = if let Some(completions) = completions {
3686 let mut menu = CompletionsMenu::new(
3687 id,
3688 sort_completions,
3689 show_completion_documentation,
3690 position,
3691 buffer.clone(),
3692 completions.into(),
3693 aside_was_displayed,
3694 );
3695 menu.filter(query.as_deref(), cx.background_executor().clone())
3696 .await;
3697
3698 if menu.matches.is_empty() {
3699 None
3700 } else {
3701 Some(menu)
3702 }
3703 } else {
3704 None
3705 };
3706
3707 editor.update(&mut cx, |editor, cx| {
3708 let mut context_menu = editor.context_menu.write();
3709 match context_menu.as_ref() {
3710 None => {}
3711
3712 Some(CodeContextMenu::Completions(prev_menu)) => {
3713 if prev_menu.id > id {
3714 return;
3715 }
3716 }
3717
3718 _ => return,
3719 }
3720
3721 if editor.focus_handle.is_focused(cx) && menu.is_some() {
3722 let mut menu = menu.unwrap();
3723 menu.resolve_visible_completions(editor.completion_provider.as_deref(), cx);
3724 *context_menu = Some(CodeContextMenu::Completions(menu));
3725 drop(context_menu);
3726 cx.notify();
3727 } else if editor.completion_tasks.len() <= 1 {
3728 // If there are no more completion tasks and the last menu was
3729 // empty, we should hide it. If it was already hidden, we should
3730 // also show the copilot completion when available.
3731 drop(context_menu);
3732 editor.hide_context_menu(cx);
3733 }
3734 })?;
3735
3736 Ok::<_, anyhow::Error>(())
3737 }
3738 .log_err()
3739 });
3740
3741 self.completion_tasks.push((id, task));
3742 }
3743
3744 pub fn confirm_completion(
3745 &mut self,
3746 action: &ConfirmCompletion,
3747 cx: &mut ViewContext<Self>,
3748 ) -> Option<Task<Result<()>>> {
3749 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
3750 }
3751
3752 pub fn compose_completion(
3753 &mut self,
3754 action: &ComposeCompletion,
3755 cx: &mut ViewContext<Self>,
3756 ) -> Option<Task<Result<()>>> {
3757 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
3758 }
3759
3760 fn do_completion(
3761 &mut self,
3762 item_ix: Option<usize>,
3763 intent: CompletionIntent,
3764 cx: &mut ViewContext<Editor>,
3765 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
3766 use language::ToOffset as _;
3767
3768 self.discard_inline_completion(true, cx);
3769 let completions_menu =
3770 if let CodeContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3771 menu
3772 } else {
3773 return None;
3774 };
3775
3776 let mat = completions_menu
3777 .matches
3778 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
3779 let buffer_handle = completions_menu.buffer;
3780 let completions = completions_menu.completions.read();
3781 let completion = completions.get(mat.candidate_id)?;
3782 cx.stop_propagation();
3783
3784 let snippet;
3785 let text;
3786
3787 if completion.is_snippet() {
3788 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3789 text = snippet.as_ref().unwrap().text.clone();
3790 } else {
3791 snippet = None;
3792 text = completion.new_text.clone();
3793 };
3794 let selections = self.selections.all::<usize>(cx);
3795 let buffer = buffer_handle.read(cx);
3796 let old_range = completion.old_range.to_offset(buffer);
3797 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3798
3799 let newest_selection = self.selections.newest_anchor();
3800 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3801 return None;
3802 }
3803
3804 let lookbehind = newest_selection
3805 .start
3806 .text_anchor
3807 .to_offset(buffer)
3808 .saturating_sub(old_range.start);
3809 let lookahead = old_range
3810 .end
3811 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3812 let mut common_prefix_len = old_text
3813 .bytes()
3814 .zip(text.bytes())
3815 .take_while(|(a, b)| a == b)
3816 .count();
3817
3818 let snapshot = self.buffer.read(cx).snapshot(cx);
3819 let mut range_to_replace: Option<Range<isize>> = None;
3820 let mut ranges = Vec::new();
3821 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3822 for selection in &selections {
3823 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3824 let start = selection.start.saturating_sub(lookbehind);
3825 let end = selection.end + lookahead;
3826 if selection.id == newest_selection.id {
3827 range_to_replace = Some(
3828 ((start + common_prefix_len) as isize - selection.start as isize)
3829 ..(end as isize - selection.start as isize),
3830 );
3831 }
3832 ranges.push(start + common_prefix_len..end);
3833 } else {
3834 common_prefix_len = 0;
3835 ranges.clear();
3836 ranges.extend(selections.iter().map(|s| {
3837 if s.id == newest_selection.id {
3838 range_to_replace = Some(
3839 old_range.start.to_offset_utf16(&snapshot).0 as isize
3840 - selection.start as isize
3841 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3842 - selection.start as isize,
3843 );
3844 old_range.clone()
3845 } else {
3846 s.start..s.end
3847 }
3848 }));
3849 break;
3850 }
3851 if !self.linked_edit_ranges.is_empty() {
3852 let start_anchor = snapshot.anchor_before(selection.head());
3853 let end_anchor = snapshot.anchor_after(selection.tail());
3854 if let Some(ranges) = self
3855 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
3856 {
3857 for (buffer, edits) in ranges {
3858 linked_edits.entry(buffer.clone()).or_default().extend(
3859 edits
3860 .into_iter()
3861 .map(|range| (range, text[common_prefix_len..].to_owned())),
3862 );
3863 }
3864 }
3865 }
3866 }
3867 let text = &text[common_prefix_len..];
3868
3869 cx.emit(EditorEvent::InputHandled {
3870 utf16_range_to_replace: range_to_replace,
3871 text: text.into(),
3872 });
3873
3874 self.transact(cx, |this, cx| {
3875 if let Some(mut snippet) = snippet {
3876 snippet.text = text.to_string();
3877 for tabstop in snippet
3878 .tabstops
3879 .iter_mut()
3880 .flat_map(|tabstop| tabstop.ranges.iter_mut())
3881 {
3882 tabstop.start -= common_prefix_len as isize;
3883 tabstop.end -= common_prefix_len as isize;
3884 }
3885
3886 this.insert_snippet(&ranges, snippet, cx).log_err();
3887 } else {
3888 this.buffer.update(cx, |buffer, cx| {
3889 buffer.edit(
3890 ranges.iter().map(|range| (range.clone(), text)),
3891 this.autoindent_mode.clone(),
3892 cx,
3893 );
3894 });
3895 }
3896 for (buffer, edits) in linked_edits {
3897 buffer.update(cx, |buffer, cx| {
3898 let snapshot = buffer.snapshot();
3899 let edits = edits
3900 .into_iter()
3901 .map(|(range, text)| {
3902 use text::ToPoint as TP;
3903 let end_point = TP::to_point(&range.end, &snapshot);
3904 let start_point = TP::to_point(&range.start, &snapshot);
3905 (start_point..end_point, text)
3906 })
3907 .sorted_by_key(|(range, _)| range.start)
3908 .collect::<Vec<_>>();
3909 buffer.edit(edits, None, cx);
3910 })
3911 }
3912
3913 this.refresh_inline_completion(true, false, cx);
3914 });
3915
3916 let show_new_completions_on_confirm = completion
3917 .confirm
3918 .as_ref()
3919 .map_or(false, |confirm| confirm(intent, cx));
3920 if show_new_completions_on_confirm {
3921 self.show_completions(&ShowCompletions { trigger: None }, cx);
3922 }
3923
3924 let provider = self.completion_provider.as_ref()?;
3925 let apply_edits = provider.apply_additional_edits_for_completion(
3926 buffer_handle,
3927 completion.clone(),
3928 true,
3929 cx,
3930 );
3931
3932 let editor_settings = EditorSettings::get_global(cx);
3933 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
3934 // After the code completion is finished, users often want to know what signatures are needed.
3935 // so we should automatically call signature_help
3936 self.show_signature_help(&ShowSignatureHelp, cx);
3937 }
3938
3939 Some(cx.foreground_executor().spawn(async move {
3940 apply_edits.await?;
3941 Ok(())
3942 }))
3943 }
3944
3945 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3946 let mut context_menu = self.context_menu.write();
3947 if let Some(CodeContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
3948 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
3949 // Toggle if we're selecting the same one
3950 *context_menu = None;
3951 cx.notify();
3952 return;
3953 } else {
3954 // Otherwise, clear it and start a new one
3955 *context_menu = None;
3956 cx.notify();
3957 }
3958 }
3959 drop(context_menu);
3960 let snapshot = self.snapshot(cx);
3961 let deployed_from_indicator = action.deployed_from_indicator;
3962 let mut task = self.code_actions_task.take();
3963 let action = action.clone();
3964 cx.spawn(|editor, mut cx| async move {
3965 while let Some(prev_task) = task {
3966 prev_task.await.log_err();
3967 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
3968 }
3969
3970 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
3971 if editor.focus_handle.is_focused(cx) {
3972 let multibuffer_point = action
3973 .deployed_from_indicator
3974 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
3975 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
3976 let (buffer, buffer_row) = snapshot
3977 .buffer_snapshot
3978 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
3979 .and_then(|(buffer_snapshot, range)| {
3980 editor
3981 .buffer
3982 .read(cx)
3983 .buffer(buffer_snapshot.remote_id())
3984 .map(|buffer| (buffer, range.start.row))
3985 })?;
3986 let (_, code_actions) = editor
3987 .available_code_actions
3988 .clone()
3989 .and_then(|(location, code_actions)| {
3990 let snapshot = location.buffer.read(cx).snapshot();
3991 let point_range = location.range.to_point(&snapshot);
3992 let point_range = point_range.start.row..=point_range.end.row;
3993 if point_range.contains(&buffer_row) {
3994 Some((location, code_actions))
3995 } else {
3996 None
3997 }
3998 })
3999 .unzip();
4000 let buffer_id = buffer.read(cx).remote_id();
4001 let tasks = editor
4002 .tasks
4003 .get(&(buffer_id, buffer_row))
4004 .map(|t| Arc::new(t.to_owned()));
4005 if tasks.is_none() && code_actions.is_none() {
4006 return None;
4007 }
4008
4009 editor.completion_tasks.clear();
4010 editor.discard_inline_completion(false, cx);
4011 let task_context =
4012 tasks
4013 .as_ref()
4014 .zip(editor.project.clone())
4015 .map(|(tasks, project)| {
4016 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4017 });
4018
4019 Some(cx.spawn(|editor, mut cx| async move {
4020 let task_context = match task_context {
4021 Some(task_context) => task_context.await,
4022 None => None,
4023 };
4024 let resolved_tasks =
4025 tasks.zip(task_context).map(|(tasks, task_context)| {
4026 Arc::new(ResolvedTasks {
4027 templates: tasks.resolve(&task_context).collect(),
4028 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4029 multibuffer_point.row,
4030 tasks.column,
4031 )),
4032 })
4033 });
4034 let spawn_straight_away = resolved_tasks
4035 .as_ref()
4036 .map_or(false, |tasks| tasks.templates.len() == 1)
4037 && code_actions
4038 .as_ref()
4039 .map_or(true, |actions| actions.is_empty());
4040 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4041 *editor.context_menu.write() =
4042 Some(CodeContextMenu::CodeActions(CodeActionsMenu {
4043 buffer,
4044 actions: CodeActionContents {
4045 tasks: resolved_tasks,
4046 actions: code_actions,
4047 },
4048 selected_item: Default::default(),
4049 scroll_handle: UniformListScrollHandle::default(),
4050 deployed_from_indicator,
4051 }));
4052 if spawn_straight_away {
4053 if let Some(task) = editor.confirm_code_action(
4054 &ConfirmCodeAction { item_ix: Some(0) },
4055 cx,
4056 ) {
4057 cx.notify();
4058 return task;
4059 }
4060 }
4061 cx.notify();
4062 Task::ready(Ok(()))
4063 }) {
4064 task.await
4065 } else {
4066 Ok(())
4067 }
4068 }))
4069 } else {
4070 Some(Task::ready(Ok(())))
4071 }
4072 })?;
4073 if let Some(task) = spawned_test_task {
4074 task.await?;
4075 }
4076
4077 Ok::<_, anyhow::Error>(())
4078 })
4079 .detach_and_log_err(cx);
4080 }
4081
4082 pub fn confirm_code_action(
4083 &mut self,
4084 action: &ConfirmCodeAction,
4085 cx: &mut ViewContext<Self>,
4086 ) -> Option<Task<Result<()>>> {
4087 let actions_menu = if let CodeContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4088 menu
4089 } else {
4090 return None;
4091 };
4092 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4093 let action = actions_menu.actions.get(action_ix)?;
4094 let title = action.label();
4095 let buffer = actions_menu.buffer;
4096 let workspace = self.workspace()?;
4097
4098 match action {
4099 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4100 workspace.update(cx, |workspace, cx| {
4101 workspace::tasks::schedule_resolved_task(
4102 workspace,
4103 task_source_kind,
4104 resolved_task,
4105 false,
4106 cx,
4107 );
4108
4109 Some(Task::ready(Ok(())))
4110 })
4111 }
4112 CodeActionsItem::CodeAction {
4113 excerpt_id,
4114 action,
4115 provider,
4116 } => {
4117 let apply_code_action =
4118 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4119 let workspace = workspace.downgrade();
4120 Some(cx.spawn(|editor, cx| async move {
4121 let project_transaction = apply_code_action.await?;
4122 Self::open_project_transaction(
4123 &editor,
4124 workspace,
4125 project_transaction,
4126 title,
4127 cx,
4128 )
4129 .await
4130 }))
4131 }
4132 }
4133 }
4134
4135 pub async fn open_project_transaction(
4136 this: &WeakView<Editor>,
4137 workspace: WeakView<Workspace>,
4138 transaction: ProjectTransaction,
4139 title: String,
4140 mut cx: AsyncWindowContext,
4141 ) -> Result<()> {
4142 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4143 cx.update(|cx| {
4144 entries.sort_unstable_by_key(|(buffer, _)| {
4145 buffer.read(cx).file().map(|f| f.path().clone())
4146 });
4147 })?;
4148
4149 // If the project transaction's edits are all contained within this editor, then
4150 // avoid opening a new editor to display them.
4151
4152 if let Some((buffer, transaction)) = entries.first() {
4153 if entries.len() == 1 {
4154 let excerpt = this.update(&mut cx, |editor, cx| {
4155 editor
4156 .buffer()
4157 .read(cx)
4158 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4159 })?;
4160 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4161 if excerpted_buffer == *buffer {
4162 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4163 let excerpt_range = excerpt_range.to_offset(buffer);
4164 buffer
4165 .edited_ranges_for_transaction::<usize>(transaction)
4166 .all(|range| {
4167 excerpt_range.start <= range.start
4168 && excerpt_range.end >= range.end
4169 })
4170 })?;
4171
4172 if all_edits_within_excerpt {
4173 return Ok(());
4174 }
4175 }
4176 }
4177 }
4178 } else {
4179 return Ok(());
4180 }
4181
4182 let mut ranges_to_highlight = Vec::new();
4183 let excerpt_buffer = cx.new_model(|cx| {
4184 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4185 for (buffer_handle, transaction) in &entries {
4186 let buffer = buffer_handle.read(cx);
4187 ranges_to_highlight.extend(
4188 multibuffer.push_excerpts_with_context_lines(
4189 buffer_handle.clone(),
4190 buffer
4191 .edited_ranges_for_transaction::<usize>(transaction)
4192 .collect(),
4193 DEFAULT_MULTIBUFFER_CONTEXT,
4194 cx,
4195 ),
4196 );
4197 }
4198 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4199 multibuffer
4200 })?;
4201
4202 workspace.update(&mut cx, |workspace, cx| {
4203 let project = workspace.project().clone();
4204 let editor =
4205 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4206 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4207 editor.update(cx, |editor, cx| {
4208 editor.highlight_background::<Self>(
4209 &ranges_to_highlight,
4210 |theme| theme.editor_highlighted_line_background,
4211 cx,
4212 );
4213 });
4214 })?;
4215
4216 Ok(())
4217 }
4218
4219 pub fn clear_code_action_providers(&mut self) {
4220 self.code_action_providers.clear();
4221 self.available_code_actions.take();
4222 }
4223
4224 pub fn push_code_action_provider(
4225 &mut self,
4226 provider: Arc<dyn CodeActionProvider>,
4227 cx: &mut ViewContext<Self>,
4228 ) {
4229 self.code_action_providers.push(provider);
4230 self.refresh_code_actions(cx);
4231 }
4232
4233 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4234 let buffer = self.buffer.read(cx);
4235 let newest_selection = self.selections.newest_anchor().clone();
4236 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4237 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4238 if start_buffer != end_buffer {
4239 return None;
4240 }
4241
4242 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4243 cx.background_executor()
4244 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4245 .await;
4246
4247 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4248 let providers = this.code_action_providers.clone();
4249 let tasks = this
4250 .code_action_providers
4251 .iter()
4252 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4253 .collect::<Vec<_>>();
4254 (providers, tasks)
4255 })?;
4256
4257 let mut actions = Vec::new();
4258 for (provider, provider_actions) in
4259 providers.into_iter().zip(future::join_all(tasks).await)
4260 {
4261 if let Some(provider_actions) = provider_actions.log_err() {
4262 actions.extend(provider_actions.into_iter().map(|action| {
4263 AvailableCodeAction {
4264 excerpt_id: newest_selection.start.excerpt_id,
4265 action,
4266 provider: provider.clone(),
4267 }
4268 }));
4269 }
4270 }
4271
4272 this.update(&mut cx, |this, cx| {
4273 this.available_code_actions = if actions.is_empty() {
4274 None
4275 } else {
4276 Some((
4277 Location {
4278 buffer: start_buffer,
4279 range: start..end,
4280 },
4281 actions.into(),
4282 ))
4283 };
4284 cx.notify();
4285 })
4286 }));
4287 None
4288 }
4289
4290 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4291 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4292 self.show_git_blame_inline = false;
4293
4294 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4295 cx.background_executor().timer(delay).await;
4296
4297 this.update(&mut cx, |this, cx| {
4298 this.show_git_blame_inline = true;
4299 cx.notify();
4300 })
4301 .log_err();
4302 }));
4303 }
4304 }
4305
4306 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4307 if self.pending_rename.is_some() {
4308 return None;
4309 }
4310
4311 let provider = self.semantics_provider.clone()?;
4312 let buffer = self.buffer.read(cx);
4313 let newest_selection = self.selections.newest_anchor().clone();
4314 let cursor_position = newest_selection.head();
4315 let (cursor_buffer, cursor_buffer_position) =
4316 buffer.text_anchor_for_position(cursor_position, cx)?;
4317 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4318 if cursor_buffer != tail_buffer {
4319 return None;
4320 }
4321 let debounce = EditorSettings::get_global(cx).lsp_highlight_debounce;
4322 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4323 cx.background_executor()
4324 .timer(Duration::from_millis(debounce))
4325 .await;
4326
4327 let highlights = if let Some(highlights) = cx
4328 .update(|cx| {
4329 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4330 })
4331 .ok()
4332 .flatten()
4333 {
4334 highlights.await.log_err()
4335 } else {
4336 None
4337 };
4338
4339 if let Some(highlights) = highlights {
4340 this.update(&mut cx, |this, cx| {
4341 if this.pending_rename.is_some() {
4342 return;
4343 }
4344
4345 let buffer_id = cursor_position.buffer_id;
4346 let buffer = this.buffer.read(cx);
4347 if !buffer
4348 .text_anchor_for_position(cursor_position, cx)
4349 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4350 {
4351 return;
4352 }
4353
4354 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4355 let mut write_ranges = Vec::new();
4356 let mut read_ranges = Vec::new();
4357 for highlight in highlights {
4358 for (excerpt_id, excerpt_range) in
4359 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4360 {
4361 let start = highlight
4362 .range
4363 .start
4364 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4365 let end = highlight
4366 .range
4367 .end
4368 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4369 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4370 continue;
4371 }
4372
4373 let range = Anchor {
4374 buffer_id,
4375 excerpt_id,
4376 text_anchor: start,
4377 }..Anchor {
4378 buffer_id,
4379 excerpt_id,
4380 text_anchor: end,
4381 };
4382 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4383 write_ranges.push(range);
4384 } else {
4385 read_ranges.push(range);
4386 }
4387 }
4388 }
4389
4390 this.highlight_background::<DocumentHighlightRead>(
4391 &read_ranges,
4392 |theme| theme.editor_document_highlight_read_background,
4393 cx,
4394 );
4395 this.highlight_background::<DocumentHighlightWrite>(
4396 &write_ranges,
4397 |theme| theme.editor_document_highlight_write_background,
4398 cx,
4399 );
4400 cx.notify();
4401 })
4402 .log_err();
4403 }
4404 }));
4405 None
4406 }
4407
4408 pub fn refresh_inline_completion(
4409 &mut self,
4410 debounce: bool,
4411 user_requested: bool,
4412 cx: &mut ViewContext<Self>,
4413 ) -> Option<()> {
4414 let provider = self.inline_completion_provider()?;
4415 let cursor = self.selections.newest_anchor().head();
4416 let (buffer, cursor_buffer_position) =
4417 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4418
4419 if !user_requested
4420 && (!self.enable_inline_completions
4421 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4422 || !self.is_focused(cx))
4423 {
4424 self.discard_inline_completion(false, cx);
4425 return None;
4426 }
4427
4428 self.update_visible_inline_completion(cx);
4429 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4430 Some(())
4431 }
4432
4433 fn cycle_inline_completion(
4434 &mut self,
4435 direction: Direction,
4436 cx: &mut ViewContext<Self>,
4437 ) -> Option<()> {
4438 let provider = self.inline_completion_provider()?;
4439 let cursor = self.selections.newest_anchor().head();
4440 let (buffer, cursor_buffer_position) =
4441 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4442 if !self.enable_inline_completions
4443 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4444 {
4445 return None;
4446 }
4447
4448 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4449 self.update_visible_inline_completion(cx);
4450
4451 Some(())
4452 }
4453
4454 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4455 if !self.has_active_inline_completion() {
4456 self.refresh_inline_completion(false, true, cx);
4457 return;
4458 }
4459
4460 self.update_visible_inline_completion(cx);
4461 }
4462
4463 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4464 self.show_cursor_names(cx);
4465 }
4466
4467 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4468 self.show_cursor_names = true;
4469 cx.notify();
4470 cx.spawn(|this, mut cx| async move {
4471 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4472 this.update(&mut cx, |this, cx| {
4473 this.show_cursor_names = false;
4474 cx.notify()
4475 })
4476 .ok()
4477 })
4478 .detach();
4479 }
4480
4481 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4482 if self.has_active_inline_completion() {
4483 self.cycle_inline_completion(Direction::Next, cx);
4484 } else {
4485 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4486 if is_copilot_disabled {
4487 cx.propagate();
4488 }
4489 }
4490 }
4491
4492 pub fn previous_inline_completion(
4493 &mut self,
4494 _: &PreviousInlineCompletion,
4495 cx: &mut ViewContext<Self>,
4496 ) {
4497 if self.has_active_inline_completion() {
4498 self.cycle_inline_completion(Direction::Prev, cx);
4499 } else {
4500 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4501 if is_copilot_disabled {
4502 cx.propagate();
4503 }
4504 }
4505 }
4506
4507 pub fn accept_inline_completion(
4508 &mut self,
4509 _: &AcceptInlineCompletion,
4510 cx: &mut ViewContext<Self>,
4511 ) {
4512 self.hide_context_menu(cx);
4513
4514 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4515 return;
4516 };
4517
4518 self.report_inline_completion_event(true, cx);
4519
4520 match &active_inline_completion.completion {
4521 InlineCompletion::Move(position) => {
4522 let position = *position;
4523 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4524 selections.select_anchor_ranges([position..position]);
4525 });
4526 }
4527 InlineCompletion::Edit(edits) => {
4528 if let Some(provider) = self.inline_completion_provider() {
4529 provider.accept(cx);
4530 }
4531
4532 let snapshot = self.buffer.read(cx).snapshot(cx);
4533 let last_edit_end = edits.last().unwrap().0.end.bias_right(&snapshot);
4534
4535 self.buffer.update(cx, |buffer, cx| {
4536 buffer.edit(edits.iter().cloned(), None, cx)
4537 });
4538
4539 self.change_selections(None, cx, |s| {
4540 s.select_anchor_ranges([last_edit_end..last_edit_end])
4541 });
4542
4543 self.update_visible_inline_completion(cx);
4544 if self.active_inline_completion.is_none() {
4545 self.refresh_inline_completion(true, true, cx);
4546 }
4547
4548 cx.notify();
4549 }
4550 }
4551 }
4552
4553 pub fn accept_partial_inline_completion(
4554 &mut self,
4555 _: &AcceptPartialInlineCompletion,
4556 cx: &mut ViewContext<Self>,
4557 ) {
4558 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4559 return;
4560 };
4561 if self.selections.count() != 1 {
4562 return;
4563 }
4564
4565 self.report_inline_completion_event(true, cx);
4566
4567 match &active_inline_completion.completion {
4568 InlineCompletion::Move(position) => {
4569 let position = *position;
4570 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4571 selections.select_anchor_ranges([position..position]);
4572 });
4573 }
4574 InlineCompletion::Edit(edits) => {
4575 if edits.len() == 1 && edits[0].0.start == edits[0].0.end {
4576 let text = edits[0].1.as_str();
4577 let mut partial_completion = text
4578 .chars()
4579 .by_ref()
4580 .take_while(|c| c.is_alphabetic())
4581 .collect::<String>();
4582 if partial_completion.is_empty() {
4583 partial_completion = text
4584 .chars()
4585 .by_ref()
4586 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4587 .collect::<String>();
4588 }
4589
4590 cx.emit(EditorEvent::InputHandled {
4591 utf16_range_to_replace: None,
4592 text: partial_completion.clone().into(),
4593 });
4594
4595 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4596
4597 self.refresh_inline_completion(true, true, cx);
4598 cx.notify();
4599 }
4600 }
4601 }
4602 }
4603
4604 fn discard_inline_completion(
4605 &mut self,
4606 should_report_inline_completion_event: bool,
4607 cx: &mut ViewContext<Self>,
4608 ) -> bool {
4609 if should_report_inline_completion_event {
4610 self.report_inline_completion_event(false, cx);
4611 }
4612
4613 if let Some(provider) = self.inline_completion_provider() {
4614 provider.discard(cx);
4615 }
4616
4617 self.take_active_inline_completion(cx).is_some()
4618 }
4619
4620 fn report_inline_completion_event(&self, accepted: bool, cx: &AppContext) {
4621 let Some(provider) = self.inline_completion_provider() else {
4622 return;
4623 };
4624 let Some(project) = self.project.as_ref() else {
4625 return;
4626 };
4627 let Some((_, buffer, _)) = self
4628 .buffer
4629 .read(cx)
4630 .excerpt_containing(self.selections.newest_anchor().head(), cx)
4631 else {
4632 return;
4633 };
4634
4635 let project = project.read(cx);
4636 let extension = buffer
4637 .read(cx)
4638 .file()
4639 .and_then(|file| Some(file.path().extension()?.to_string_lossy().to_string()));
4640 project.client().telemetry().report_inline_completion_event(
4641 provider.name().into(),
4642 accepted,
4643 extension,
4644 );
4645 }
4646
4647 pub fn has_active_inline_completion(&self) -> bool {
4648 self.active_inline_completion.is_some()
4649 }
4650
4651 fn take_active_inline_completion(
4652 &mut self,
4653 cx: &mut ViewContext<Self>,
4654 ) -> Option<InlineCompletion> {
4655 let active_inline_completion = self.active_inline_completion.take()?;
4656 self.splice_inlays(active_inline_completion.inlay_ids, Default::default(), cx);
4657 self.clear_highlights::<InlineCompletionHighlight>(cx);
4658 Some(active_inline_completion.completion)
4659 }
4660
4661 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4662 let selection = self.selections.newest_anchor();
4663 let cursor = selection.head();
4664 let multibuffer = self.buffer.read(cx).snapshot(cx);
4665 let offset_selection = selection.map(|endpoint| endpoint.to_offset(&multibuffer));
4666 let excerpt_id = cursor.excerpt_id;
4667
4668 if !offset_selection.is_empty()
4669 || self
4670 .active_inline_completion
4671 .as_ref()
4672 .map_or(false, |completion| {
4673 let invalidation_range = completion.invalidation_range.to_offset(&multibuffer);
4674 let invalidation_range = invalidation_range.start..=invalidation_range.end;
4675 !invalidation_range.contains(&offset_selection.head())
4676 })
4677 {
4678 self.discard_inline_completion(false, cx);
4679 return None;
4680 }
4681
4682 self.take_active_inline_completion(cx);
4683 let provider = self.inline_completion_provider()?;
4684
4685 let (buffer, cursor_buffer_position) =
4686 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4687
4688 let completion = provider.suggest(&buffer, cursor_buffer_position, cx)?;
4689 let edits = completion
4690 .edits
4691 .into_iter()
4692 .map(|(range, new_text)| {
4693 (
4694 multibuffer
4695 .anchor_in_excerpt(excerpt_id, range.start)
4696 .unwrap()
4697 ..multibuffer
4698 .anchor_in_excerpt(excerpt_id, range.end)
4699 .unwrap(),
4700 new_text,
4701 )
4702 })
4703 .collect::<Vec<_>>();
4704 if edits.is_empty() {
4705 return None;
4706 }
4707
4708 let first_edit_start = edits.first().unwrap().0.start;
4709 let edit_start_row = first_edit_start
4710 .to_point(&multibuffer)
4711 .row
4712 .saturating_sub(2);
4713
4714 let last_edit_end = edits.last().unwrap().0.end;
4715 let edit_end_row = cmp::min(
4716 multibuffer.max_point().row,
4717 last_edit_end.to_point(&multibuffer).row + 2,
4718 );
4719
4720 let cursor_row = cursor.to_point(&multibuffer).row;
4721
4722 let mut inlay_ids = Vec::new();
4723 let invalidation_row_range;
4724 let completion;
4725 if cursor_row < edit_start_row {
4726 invalidation_row_range = cursor_row..edit_end_row;
4727 completion = InlineCompletion::Move(first_edit_start);
4728 } else if cursor_row > edit_end_row {
4729 invalidation_row_range = edit_start_row..cursor_row;
4730 completion = InlineCompletion::Move(first_edit_start);
4731 } else {
4732 if edits
4733 .iter()
4734 .all(|(range, _)| range.to_offset(&multibuffer).is_empty())
4735 {
4736 let mut inlays = Vec::new();
4737 for (range, new_text) in &edits {
4738 let inlay = Inlay::suggestion(
4739 post_inc(&mut self.next_inlay_id),
4740 range.start,
4741 new_text.as_str(),
4742 );
4743 inlay_ids.push(inlay.id);
4744 inlays.push(inlay);
4745 }
4746
4747 self.splice_inlays(vec![], inlays, cx);
4748 } else {
4749 let background_color = cx.theme().status().deleted_background;
4750 self.highlight_text::<InlineCompletionHighlight>(
4751 edits.iter().map(|(range, _)| range.clone()).collect(),
4752 HighlightStyle {
4753 background_color: Some(background_color),
4754 ..Default::default()
4755 },
4756 cx,
4757 );
4758 }
4759
4760 invalidation_row_range = edit_start_row..edit_end_row;
4761 completion = InlineCompletion::Edit(edits);
4762 };
4763
4764 let invalidation_range = multibuffer
4765 .anchor_before(Point::new(invalidation_row_range.start, 0))
4766 ..multibuffer.anchor_after(Point::new(
4767 invalidation_row_range.end,
4768 multibuffer.line_len(MultiBufferRow(invalidation_row_range.end)),
4769 ));
4770
4771 self.active_inline_completion = Some(InlineCompletionState {
4772 inlay_ids,
4773 completion,
4774 invalidation_range,
4775 });
4776 cx.notify();
4777
4778 Some(())
4779 }
4780
4781 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4782 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4783 }
4784
4785 fn render_code_actions_indicator(
4786 &self,
4787 _style: &EditorStyle,
4788 row: DisplayRow,
4789 is_active: bool,
4790 cx: &mut ViewContext<Self>,
4791 ) -> Option<IconButton> {
4792 if self.available_code_actions.is_some() {
4793 Some(
4794 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4795 .shape(ui::IconButtonShape::Square)
4796 .icon_size(IconSize::XSmall)
4797 .icon_color(Color::Muted)
4798 .selected(is_active)
4799 .tooltip({
4800 let focus_handle = self.focus_handle.clone();
4801 move |cx| {
4802 Tooltip::for_action_in(
4803 "Toggle Code Actions",
4804 &ToggleCodeActions {
4805 deployed_from_indicator: None,
4806 },
4807 &focus_handle,
4808 cx,
4809 )
4810 }
4811 })
4812 .on_click(cx.listener(move |editor, _e, cx| {
4813 editor.focus(cx);
4814 editor.toggle_code_actions(
4815 &ToggleCodeActions {
4816 deployed_from_indicator: Some(row),
4817 },
4818 cx,
4819 );
4820 })),
4821 )
4822 } else {
4823 None
4824 }
4825 }
4826
4827 fn clear_tasks(&mut self) {
4828 self.tasks.clear()
4829 }
4830
4831 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
4832 if self.tasks.insert(key, value).is_some() {
4833 // This case should hopefully be rare, but just in case...
4834 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4835 }
4836 }
4837
4838 fn build_tasks_context(
4839 project: &Model<Project>,
4840 buffer: &Model<Buffer>,
4841 buffer_row: u32,
4842 tasks: &Arc<RunnableTasks>,
4843 cx: &mut ViewContext<Self>,
4844 ) -> Task<Option<task::TaskContext>> {
4845 let position = Point::new(buffer_row, tasks.column);
4846 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4847 let location = Location {
4848 buffer: buffer.clone(),
4849 range: range_start..range_start,
4850 };
4851 // Fill in the environmental variables from the tree-sitter captures
4852 let mut captured_task_variables = TaskVariables::default();
4853 for (capture_name, value) in tasks.extra_variables.clone() {
4854 captured_task_variables.insert(
4855 task::VariableName::Custom(capture_name.into()),
4856 value.clone(),
4857 );
4858 }
4859 project.update(cx, |project, cx| {
4860 project.task_store().update(cx, |task_store, cx| {
4861 task_store.task_context_for_location(captured_task_variables, location, cx)
4862 })
4863 })
4864 }
4865
4866 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
4867 let Some((workspace, _)) = self.workspace.clone() else {
4868 return;
4869 };
4870 let Some(project) = self.project.clone() else {
4871 return;
4872 };
4873
4874 // Try to find a closest, enclosing node using tree-sitter that has a
4875 // task
4876 let Some((buffer, buffer_row, tasks)) = self
4877 .find_enclosing_node_task(cx)
4878 // Or find the task that's closest in row-distance.
4879 .or_else(|| self.find_closest_task(cx))
4880 else {
4881 return;
4882 };
4883
4884 let reveal_strategy = action.reveal;
4885 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
4886 cx.spawn(|_, mut cx| async move {
4887 let context = task_context.await?;
4888 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
4889
4890 let resolved = resolved_task.resolved.as_mut()?;
4891 resolved.reveal = reveal_strategy;
4892
4893 workspace
4894 .update(&mut cx, |workspace, cx| {
4895 workspace::tasks::schedule_resolved_task(
4896 workspace,
4897 task_source_kind,
4898 resolved_task,
4899 false,
4900 cx,
4901 );
4902 })
4903 .ok()
4904 })
4905 .detach();
4906 }
4907
4908 fn find_closest_task(
4909 &mut self,
4910 cx: &mut ViewContext<Self>,
4911 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
4912 let cursor_row = self.selections.newest_adjusted(cx).head().row;
4913
4914 let ((buffer_id, row), tasks) = self
4915 .tasks
4916 .iter()
4917 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
4918
4919 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
4920 let tasks = Arc::new(tasks.to_owned());
4921 Some((buffer, *row, tasks))
4922 }
4923
4924 fn find_enclosing_node_task(
4925 &mut self,
4926 cx: &mut ViewContext<Self>,
4927 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
4928 let snapshot = self.buffer.read(cx).snapshot(cx);
4929 let offset = self.selections.newest::<usize>(cx).head();
4930 let excerpt = snapshot.excerpt_containing(offset..offset)?;
4931 let buffer_id = excerpt.buffer().remote_id();
4932
4933 let layer = excerpt.buffer().syntax_layer_at(offset)?;
4934 let mut cursor = layer.node().walk();
4935
4936 while cursor.goto_first_child_for_byte(offset).is_some() {
4937 if cursor.node().end_byte() == offset {
4938 cursor.goto_next_sibling();
4939 }
4940 }
4941
4942 // Ascend to the smallest ancestor that contains the range and has a task.
4943 loop {
4944 let node = cursor.node();
4945 let node_range = node.byte_range();
4946 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
4947
4948 // Check if this node contains our offset
4949 if node_range.start <= offset && node_range.end >= offset {
4950 // If it contains offset, check for task
4951 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
4952 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
4953 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
4954 }
4955 }
4956
4957 if !cursor.goto_parent() {
4958 break;
4959 }
4960 }
4961 None
4962 }
4963
4964 fn render_run_indicator(
4965 &self,
4966 _style: &EditorStyle,
4967 is_active: bool,
4968 row: DisplayRow,
4969 cx: &mut ViewContext<Self>,
4970 ) -> IconButton {
4971 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
4972 .shape(ui::IconButtonShape::Square)
4973 .icon_size(IconSize::XSmall)
4974 .icon_color(Color::Muted)
4975 .selected(is_active)
4976 .on_click(cx.listener(move |editor, _e, cx| {
4977 editor.focus(cx);
4978 editor.toggle_code_actions(
4979 &ToggleCodeActions {
4980 deployed_from_indicator: Some(row),
4981 },
4982 cx,
4983 );
4984 }))
4985 }
4986
4987 pub fn context_menu_visible(&self) -> bool {
4988 self.context_menu
4989 .read()
4990 .as_ref()
4991 .map_or(false, |menu| menu.visible())
4992 }
4993
4994 fn render_context_menu(
4995 &self,
4996 cursor_position: DisplayPoint,
4997 style: &EditorStyle,
4998 max_height: Pixels,
4999 cx: &mut ViewContext<Editor>,
5000 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5001 self.context_menu.read().as_ref().map(|menu| {
5002 menu.render(
5003 cursor_position,
5004 style,
5005 max_height,
5006 self.workspace.as_ref().map(|(w, _)| w.clone()),
5007 cx,
5008 )
5009 })
5010 }
5011
5012 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<CodeContextMenu> {
5013 cx.notify();
5014 self.completion_tasks.clear();
5015 self.context_menu.write().take()
5016 }
5017
5018 fn show_snippet_choices(
5019 &mut self,
5020 choices: &Vec<String>,
5021 selection: Range<Anchor>,
5022 cx: &mut ViewContext<Self>,
5023 ) {
5024 if selection.start.buffer_id.is_none() {
5025 return;
5026 }
5027 let buffer_id = selection.start.buffer_id.unwrap();
5028 let buffer = self.buffer().read(cx).buffer(buffer_id);
5029 let id = post_inc(&mut self.next_completion_id);
5030
5031 if let Some(buffer) = buffer {
5032 *self.context_menu.write() = Some(CodeContextMenu::Completions(
5033 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
5034 ));
5035 }
5036 }
5037
5038 pub fn insert_snippet(
5039 &mut self,
5040 insertion_ranges: &[Range<usize>],
5041 snippet: Snippet,
5042 cx: &mut ViewContext<Self>,
5043 ) -> Result<()> {
5044 struct Tabstop<T> {
5045 is_end_tabstop: bool,
5046 ranges: Vec<Range<T>>,
5047 choices: Option<Vec<String>>,
5048 }
5049
5050 let tabstops = self.buffer.update(cx, |buffer, cx| {
5051 let snippet_text: Arc<str> = snippet.text.clone().into();
5052 buffer.edit(
5053 insertion_ranges
5054 .iter()
5055 .cloned()
5056 .map(|range| (range, snippet_text.clone())),
5057 Some(AutoindentMode::EachLine),
5058 cx,
5059 );
5060
5061 let snapshot = &*buffer.read(cx);
5062 let snippet = &snippet;
5063 snippet
5064 .tabstops
5065 .iter()
5066 .map(|tabstop| {
5067 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5068 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5069 });
5070 let mut tabstop_ranges = tabstop
5071 .ranges
5072 .iter()
5073 .flat_map(|tabstop_range| {
5074 let mut delta = 0_isize;
5075 insertion_ranges.iter().map(move |insertion_range| {
5076 let insertion_start = insertion_range.start as isize + delta;
5077 delta +=
5078 snippet.text.len() as isize - insertion_range.len() as isize;
5079
5080 let start = ((insertion_start + tabstop_range.start) as usize)
5081 .min(snapshot.len());
5082 let end = ((insertion_start + tabstop_range.end) as usize)
5083 .min(snapshot.len());
5084 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5085 })
5086 })
5087 .collect::<Vec<_>>();
5088 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5089
5090 Tabstop {
5091 is_end_tabstop,
5092 ranges: tabstop_ranges,
5093 choices: tabstop.choices.clone(),
5094 }
5095 })
5096 .collect::<Vec<_>>()
5097 });
5098 if let Some(tabstop) = tabstops.first() {
5099 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5100 s.select_ranges(tabstop.ranges.iter().cloned());
5101 });
5102
5103 if let Some(choices) = &tabstop.choices {
5104 if let Some(selection) = tabstop.ranges.first() {
5105 self.show_snippet_choices(choices, selection.clone(), cx)
5106 }
5107 }
5108
5109 // If we're already at the last tabstop and it's at the end of the snippet,
5110 // we're done, we don't need to keep the state around.
5111 if !tabstop.is_end_tabstop {
5112 let choices = tabstops
5113 .iter()
5114 .map(|tabstop| tabstop.choices.clone())
5115 .collect();
5116
5117 let ranges = tabstops
5118 .into_iter()
5119 .map(|tabstop| tabstop.ranges)
5120 .collect::<Vec<_>>();
5121
5122 self.snippet_stack.push(SnippetState {
5123 active_index: 0,
5124 ranges,
5125 choices,
5126 });
5127 }
5128
5129 // Check whether the just-entered snippet ends with an auto-closable bracket.
5130 if self.autoclose_regions.is_empty() {
5131 let snapshot = self.buffer.read(cx).snapshot(cx);
5132 for selection in &mut self.selections.all::<Point>(cx) {
5133 let selection_head = selection.head();
5134 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5135 continue;
5136 };
5137
5138 let mut bracket_pair = None;
5139 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5140 let prev_chars = snapshot
5141 .reversed_chars_at(selection_head)
5142 .collect::<String>();
5143 for (pair, enabled) in scope.brackets() {
5144 if enabled
5145 && pair.close
5146 && prev_chars.starts_with(pair.start.as_str())
5147 && next_chars.starts_with(pair.end.as_str())
5148 {
5149 bracket_pair = Some(pair.clone());
5150 break;
5151 }
5152 }
5153 if let Some(pair) = bracket_pair {
5154 let start = snapshot.anchor_after(selection_head);
5155 let end = snapshot.anchor_after(selection_head);
5156 self.autoclose_regions.push(AutocloseRegion {
5157 selection_id: selection.id,
5158 range: start..end,
5159 pair,
5160 });
5161 }
5162 }
5163 }
5164 }
5165 Ok(())
5166 }
5167
5168 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5169 self.move_to_snippet_tabstop(Bias::Right, cx)
5170 }
5171
5172 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5173 self.move_to_snippet_tabstop(Bias::Left, cx)
5174 }
5175
5176 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5177 if let Some(mut snippet) = self.snippet_stack.pop() {
5178 match bias {
5179 Bias::Left => {
5180 if snippet.active_index > 0 {
5181 snippet.active_index -= 1;
5182 } else {
5183 self.snippet_stack.push(snippet);
5184 return false;
5185 }
5186 }
5187 Bias::Right => {
5188 if snippet.active_index + 1 < snippet.ranges.len() {
5189 snippet.active_index += 1;
5190 } else {
5191 self.snippet_stack.push(snippet);
5192 return false;
5193 }
5194 }
5195 }
5196 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5197 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5198 s.select_anchor_ranges(current_ranges.iter().cloned())
5199 });
5200
5201 if let Some(choices) = &snippet.choices[snippet.active_index] {
5202 if let Some(selection) = current_ranges.first() {
5203 self.show_snippet_choices(&choices, selection.clone(), cx);
5204 }
5205 }
5206
5207 // If snippet state is not at the last tabstop, push it back on the stack
5208 if snippet.active_index + 1 < snippet.ranges.len() {
5209 self.snippet_stack.push(snippet);
5210 }
5211 return true;
5212 }
5213 }
5214
5215 false
5216 }
5217
5218 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5219 self.transact(cx, |this, cx| {
5220 this.select_all(&SelectAll, cx);
5221 this.insert("", cx);
5222 });
5223 }
5224
5225 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5226 self.transact(cx, |this, cx| {
5227 this.select_autoclose_pair(cx);
5228 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5229 if !this.linked_edit_ranges.is_empty() {
5230 let selections = this.selections.all::<MultiBufferPoint>(cx);
5231 let snapshot = this.buffer.read(cx).snapshot(cx);
5232
5233 for selection in selections.iter() {
5234 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5235 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5236 if selection_start.buffer_id != selection_end.buffer_id {
5237 continue;
5238 }
5239 if let Some(ranges) =
5240 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5241 {
5242 for (buffer, entries) in ranges {
5243 linked_ranges.entry(buffer).or_default().extend(entries);
5244 }
5245 }
5246 }
5247 }
5248
5249 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5250 if !this.selections.line_mode {
5251 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5252 for selection in &mut selections {
5253 if selection.is_empty() {
5254 let old_head = selection.head();
5255 let mut new_head =
5256 movement::left(&display_map, old_head.to_display_point(&display_map))
5257 .to_point(&display_map);
5258 if let Some((buffer, line_buffer_range)) = display_map
5259 .buffer_snapshot
5260 .buffer_line_for_row(MultiBufferRow(old_head.row))
5261 {
5262 let indent_size =
5263 buffer.indent_size_for_line(line_buffer_range.start.row);
5264 let indent_len = match indent_size.kind {
5265 IndentKind::Space => {
5266 buffer.settings_at(line_buffer_range.start, cx).tab_size
5267 }
5268 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5269 };
5270 if old_head.column <= indent_size.len && old_head.column > 0 {
5271 let indent_len = indent_len.get();
5272 new_head = cmp::min(
5273 new_head,
5274 MultiBufferPoint::new(
5275 old_head.row,
5276 ((old_head.column - 1) / indent_len) * indent_len,
5277 ),
5278 );
5279 }
5280 }
5281
5282 selection.set_head(new_head, SelectionGoal::None);
5283 }
5284 }
5285 }
5286
5287 this.signature_help_state.set_backspace_pressed(true);
5288 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5289 this.insert("", cx);
5290 let empty_str: Arc<str> = Arc::from("");
5291 for (buffer, edits) in linked_ranges {
5292 let snapshot = buffer.read(cx).snapshot();
5293 use text::ToPoint as TP;
5294
5295 let edits = edits
5296 .into_iter()
5297 .map(|range| {
5298 let end_point = TP::to_point(&range.end, &snapshot);
5299 let mut start_point = TP::to_point(&range.start, &snapshot);
5300
5301 if end_point == start_point {
5302 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5303 .saturating_sub(1);
5304 start_point = TP::to_point(&offset, &snapshot);
5305 };
5306
5307 (start_point..end_point, empty_str.clone())
5308 })
5309 .sorted_by_key(|(range, _)| range.start)
5310 .collect::<Vec<_>>();
5311 buffer.update(cx, |this, cx| {
5312 this.edit(edits, None, cx);
5313 })
5314 }
5315 this.refresh_inline_completion(true, false, cx);
5316 linked_editing_ranges::refresh_linked_ranges(this, cx);
5317 });
5318 }
5319
5320 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5321 self.transact(cx, |this, cx| {
5322 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5323 let line_mode = s.line_mode;
5324 s.move_with(|map, selection| {
5325 if selection.is_empty() && !line_mode {
5326 let cursor = movement::right(map, selection.head());
5327 selection.end = cursor;
5328 selection.reversed = true;
5329 selection.goal = SelectionGoal::None;
5330 }
5331 })
5332 });
5333 this.insert("", cx);
5334 this.refresh_inline_completion(true, false, cx);
5335 });
5336 }
5337
5338 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5339 if self.move_to_prev_snippet_tabstop(cx) {
5340 return;
5341 }
5342
5343 self.outdent(&Outdent, cx);
5344 }
5345
5346 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5347 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5348 return;
5349 }
5350
5351 let mut selections = self.selections.all_adjusted(cx);
5352 let buffer = self.buffer.read(cx);
5353 let snapshot = buffer.snapshot(cx);
5354 let rows_iter = selections.iter().map(|s| s.head().row);
5355 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5356
5357 let mut edits = Vec::new();
5358 let mut prev_edited_row = 0;
5359 let mut row_delta = 0;
5360 for selection in &mut selections {
5361 if selection.start.row != prev_edited_row {
5362 row_delta = 0;
5363 }
5364 prev_edited_row = selection.end.row;
5365
5366 // If the selection is non-empty, then increase the indentation of the selected lines.
5367 if !selection.is_empty() {
5368 row_delta =
5369 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5370 continue;
5371 }
5372
5373 // If the selection is empty and the cursor is in the leading whitespace before the
5374 // suggested indentation, then auto-indent the line.
5375 let cursor = selection.head();
5376 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5377 if let Some(suggested_indent) =
5378 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5379 {
5380 if cursor.column < suggested_indent.len
5381 && cursor.column <= current_indent.len
5382 && current_indent.len <= suggested_indent.len
5383 {
5384 selection.start = Point::new(cursor.row, suggested_indent.len);
5385 selection.end = selection.start;
5386 if row_delta == 0 {
5387 edits.extend(Buffer::edit_for_indent_size_adjustment(
5388 cursor.row,
5389 current_indent,
5390 suggested_indent,
5391 ));
5392 row_delta = suggested_indent.len - current_indent.len;
5393 }
5394 continue;
5395 }
5396 }
5397
5398 // Otherwise, insert a hard or soft tab.
5399 let settings = buffer.settings_at(cursor, cx);
5400 let tab_size = if settings.hard_tabs {
5401 IndentSize::tab()
5402 } else {
5403 let tab_size = settings.tab_size.get();
5404 let char_column = snapshot
5405 .text_for_range(Point::new(cursor.row, 0)..cursor)
5406 .flat_map(str::chars)
5407 .count()
5408 + row_delta as usize;
5409 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5410 IndentSize::spaces(chars_to_next_tab_stop)
5411 };
5412 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5413 selection.end = selection.start;
5414 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5415 row_delta += tab_size.len;
5416 }
5417
5418 self.transact(cx, |this, cx| {
5419 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5420 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5421 this.refresh_inline_completion(true, false, cx);
5422 });
5423 }
5424
5425 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5426 if self.read_only(cx) {
5427 return;
5428 }
5429 let mut selections = self.selections.all::<Point>(cx);
5430 let mut prev_edited_row = 0;
5431 let mut row_delta = 0;
5432 let mut edits = Vec::new();
5433 let buffer = self.buffer.read(cx);
5434 let snapshot = buffer.snapshot(cx);
5435 for selection in &mut selections {
5436 if selection.start.row != prev_edited_row {
5437 row_delta = 0;
5438 }
5439 prev_edited_row = selection.end.row;
5440
5441 row_delta =
5442 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5443 }
5444
5445 self.transact(cx, |this, cx| {
5446 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5447 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5448 });
5449 }
5450
5451 fn indent_selection(
5452 buffer: &MultiBuffer,
5453 snapshot: &MultiBufferSnapshot,
5454 selection: &mut Selection<Point>,
5455 edits: &mut Vec<(Range<Point>, String)>,
5456 delta_for_start_row: u32,
5457 cx: &AppContext,
5458 ) -> u32 {
5459 let settings = buffer.settings_at(selection.start, cx);
5460 let tab_size = settings.tab_size.get();
5461 let indent_kind = if settings.hard_tabs {
5462 IndentKind::Tab
5463 } else {
5464 IndentKind::Space
5465 };
5466 let mut start_row = selection.start.row;
5467 let mut end_row = selection.end.row + 1;
5468
5469 // If a selection ends at the beginning of a line, don't indent
5470 // that last line.
5471 if selection.end.column == 0 && selection.end.row > selection.start.row {
5472 end_row -= 1;
5473 }
5474
5475 // Avoid re-indenting a row that has already been indented by a
5476 // previous selection, but still update this selection's column
5477 // to reflect that indentation.
5478 if delta_for_start_row > 0 {
5479 start_row += 1;
5480 selection.start.column += delta_for_start_row;
5481 if selection.end.row == selection.start.row {
5482 selection.end.column += delta_for_start_row;
5483 }
5484 }
5485
5486 let mut delta_for_end_row = 0;
5487 let has_multiple_rows = start_row + 1 != end_row;
5488 for row in start_row..end_row {
5489 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5490 let indent_delta = match (current_indent.kind, indent_kind) {
5491 (IndentKind::Space, IndentKind::Space) => {
5492 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5493 IndentSize::spaces(columns_to_next_tab_stop)
5494 }
5495 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5496 (_, IndentKind::Tab) => IndentSize::tab(),
5497 };
5498
5499 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5500 0
5501 } else {
5502 selection.start.column
5503 };
5504 let row_start = Point::new(row, start);
5505 edits.push((
5506 row_start..row_start,
5507 indent_delta.chars().collect::<String>(),
5508 ));
5509
5510 // Update this selection's endpoints to reflect the indentation.
5511 if row == selection.start.row {
5512 selection.start.column += indent_delta.len;
5513 }
5514 if row == selection.end.row {
5515 selection.end.column += indent_delta.len;
5516 delta_for_end_row = indent_delta.len;
5517 }
5518 }
5519
5520 if selection.start.row == selection.end.row {
5521 delta_for_start_row + delta_for_end_row
5522 } else {
5523 delta_for_end_row
5524 }
5525 }
5526
5527 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5528 if self.read_only(cx) {
5529 return;
5530 }
5531 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5532 let selections = self.selections.all::<Point>(cx);
5533 let mut deletion_ranges = Vec::new();
5534 let mut last_outdent = None;
5535 {
5536 let buffer = self.buffer.read(cx);
5537 let snapshot = buffer.snapshot(cx);
5538 for selection in &selections {
5539 let settings = buffer.settings_at(selection.start, cx);
5540 let tab_size = settings.tab_size.get();
5541 let mut rows = selection.spanned_rows(false, &display_map);
5542
5543 // Avoid re-outdenting a row that has already been outdented by a
5544 // previous selection.
5545 if let Some(last_row) = last_outdent {
5546 if last_row == rows.start {
5547 rows.start = rows.start.next_row();
5548 }
5549 }
5550 let has_multiple_rows = rows.len() > 1;
5551 for row in rows.iter_rows() {
5552 let indent_size = snapshot.indent_size_for_line(row);
5553 if indent_size.len > 0 {
5554 let deletion_len = match indent_size.kind {
5555 IndentKind::Space => {
5556 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5557 if columns_to_prev_tab_stop == 0 {
5558 tab_size
5559 } else {
5560 columns_to_prev_tab_stop
5561 }
5562 }
5563 IndentKind::Tab => 1,
5564 };
5565 let start = if has_multiple_rows
5566 || deletion_len > selection.start.column
5567 || indent_size.len < selection.start.column
5568 {
5569 0
5570 } else {
5571 selection.start.column - deletion_len
5572 };
5573 deletion_ranges.push(
5574 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5575 );
5576 last_outdent = Some(row);
5577 }
5578 }
5579 }
5580 }
5581
5582 self.transact(cx, |this, cx| {
5583 this.buffer.update(cx, |buffer, cx| {
5584 let empty_str: Arc<str> = Arc::default();
5585 buffer.edit(
5586 deletion_ranges
5587 .into_iter()
5588 .map(|range| (range, empty_str.clone())),
5589 None,
5590 cx,
5591 );
5592 });
5593 let selections = this.selections.all::<usize>(cx);
5594 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5595 });
5596 }
5597
5598 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
5599 if self.read_only(cx) {
5600 return;
5601 }
5602 let selections = self
5603 .selections
5604 .all::<usize>(cx)
5605 .into_iter()
5606 .map(|s| s.range());
5607
5608 self.transact(cx, |this, cx| {
5609 this.buffer.update(cx, |buffer, cx| {
5610 buffer.autoindent_ranges(selections, cx);
5611 });
5612 let selections = this.selections.all::<usize>(cx);
5613 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5614 });
5615 }
5616
5617 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5618 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5619 let selections = self.selections.all::<Point>(cx);
5620
5621 let mut new_cursors = Vec::new();
5622 let mut edit_ranges = Vec::new();
5623 let mut selections = selections.iter().peekable();
5624 while let Some(selection) = selections.next() {
5625 let mut rows = selection.spanned_rows(false, &display_map);
5626 let goal_display_column = selection.head().to_display_point(&display_map).column();
5627
5628 // Accumulate contiguous regions of rows that we want to delete.
5629 while let Some(next_selection) = selections.peek() {
5630 let next_rows = next_selection.spanned_rows(false, &display_map);
5631 if next_rows.start <= rows.end {
5632 rows.end = next_rows.end;
5633 selections.next().unwrap();
5634 } else {
5635 break;
5636 }
5637 }
5638
5639 let buffer = &display_map.buffer_snapshot;
5640 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5641 let edit_end;
5642 let cursor_buffer_row;
5643 if buffer.max_point().row >= rows.end.0 {
5644 // If there's a line after the range, delete the \n from the end of the row range
5645 // and position the cursor on the next line.
5646 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5647 cursor_buffer_row = rows.end;
5648 } else {
5649 // If there isn't a line after the range, delete the \n from the line before the
5650 // start of the row range and position the cursor there.
5651 edit_start = edit_start.saturating_sub(1);
5652 edit_end = buffer.len();
5653 cursor_buffer_row = rows.start.previous_row();
5654 }
5655
5656 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5657 *cursor.column_mut() =
5658 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5659
5660 new_cursors.push((
5661 selection.id,
5662 buffer.anchor_after(cursor.to_point(&display_map)),
5663 ));
5664 edit_ranges.push(edit_start..edit_end);
5665 }
5666
5667 self.transact(cx, |this, cx| {
5668 let buffer = this.buffer.update(cx, |buffer, cx| {
5669 let empty_str: Arc<str> = Arc::default();
5670 buffer.edit(
5671 edit_ranges
5672 .into_iter()
5673 .map(|range| (range, empty_str.clone())),
5674 None,
5675 cx,
5676 );
5677 buffer.snapshot(cx)
5678 });
5679 let new_selections = new_cursors
5680 .into_iter()
5681 .map(|(id, cursor)| {
5682 let cursor = cursor.to_point(&buffer);
5683 Selection {
5684 id,
5685 start: cursor,
5686 end: cursor,
5687 reversed: false,
5688 goal: SelectionGoal::None,
5689 }
5690 })
5691 .collect();
5692
5693 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5694 s.select(new_selections);
5695 });
5696 });
5697 }
5698
5699 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5700 if self.read_only(cx) {
5701 return;
5702 }
5703 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5704 for selection in self.selections.all::<Point>(cx) {
5705 let start = MultiBufferRow(selection.start.row);
5706 // Treat single line selections as if they include the next line. Otherwise this action
5707 // would do nothing for single line selections individual cursors.
5708 let end = if selection.start.row == selection.end.row {
5709 MultiBufferRow(selection.start.row + 1)
5710 } else {
5711 MultiBufferRow(selection.end.row)
5712 };
5713
5714 if let Some(last_row_range) = row_ranges.last_mut() {
5715 if start <= last_row_range.end {
5716 last_row_range.end = end;
5717 continue;
5718 }
5719 }
5720 row_ranges.push(start..end);
5721 }
5722
5723 let snapshot = self.buffer.read(cx).snapshot(cx);
5724 let mut cursor_positions = Vec::new();
5725 for row_range in &row_ranges {
5726 let anchor = snapshot.anchor_before(Point::new(
5727 row_range.end.previous_row().0,
5728 snapshot.line_len(row_range.end.previous_row()),
5729 ));
5730 cursor_positions.push(anchor..anchor);
5731 }
5732
5733 self.transact(cx, |this, cx| {
5734 for row_range in row_ranges.into_iter().rev() {
5735 for row in row_range.iter_rows().rev() {
5736 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5737 let next_line_row = row.next_row();
5738 let indent = snapshot.indent_size_for_line(next_line_row);
5739 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5740
5741 let replace = if snapshot.line_len(next_line_row) > indent.len {
5742 " "
5743 } else {
5744 ""
5745 };
5746
5747 this.buffer.update(cx, |buffer, cx| {
5748 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5749 });
5750 }
5751 }
5752
5753 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5754 s.select_anchor_ranges(cursor_positions)
5755 });
5756 });
5757 }
5758
5759 pub fn sort_lines_case_sensitive(
5760 &mut self,
5761 _: &SortLinesCaseSensitive,
5762 cx: &mut ViewContext<Self>,
5763 ) {
5764 self.manipulate_lines(cx, |lines| lines.sort())
5765 }
5766
5767 pub fn sort_lines_case_insensitive(
5768 &mut self,
5769 _: &SortLinesCaseInsensitive,
5770 cx: &mut ViewContext<Self>,
5771 ) {
5772 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5773 }
5774
5775 pub fn unique_lines_case_insensitive(
5776 &mut self,
5777 _: &UniqueLinesCaseInsensitive,
5778 cx: &mut ViewContext<Self>,
5779 ) {
5780 self.manipulate_lines(cx, |lines| {
5781 let mut seen = HashSet::default();
5782 lines.retain(|line| seen.insert(line.to_lowercase()));
5783 })
5784 }
5785
5786 pub fn unique_lines_case_sensitive(
5787 &mut self,
5788 _: &UniqueLinesCaseSensitive,
5789 cx: &mut ViewContext<Self>,
5790 ) {
5791 self.manipulate_lines(cx, |lines| {
5792 let mut seen = HashSet::default();
5793 lines.retain(|line| seen.insert(*line));
5794 })
5795 }
5796
5797 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
5798 let mut revert_changes = HashMap::default();
5799 let snapshot = self.snapshot(cx);
5800 for hunk in hunks_for_ranges(
5801 Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter(),
5802 &snapshot,
5803 ) {
5804 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5805 }
5806 if !revert_changes.is_empty() {
5807 self.transact(cx, |editor, cx| {
5808 editor.revert(revert_changes, cx);
5809 });
5810 }
5811 }
5812
5813 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
5814 let Some(project) = self.project.clone() else {
5815 return;
5816 };
5817 self.reload(project, cx).detach_and_notify_err(cx);
5818 }
5819
5820 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5821 let revert_changes = self.gather_revert_changes(&self.selections.all(cx), cx);
5822 if !revert_changes.is_empty() {
5823 self.transact(cx, |editor, cx| {
5824 editor.revert(revert_changes, cx);
5825 });
5826 }
5827 }
5828
5829 fn revert_hunk(&mut self, hunk: HoveredHunk, cx: &mut ViewContext<Editor>) {
5830 let snapshot = self.buffer.read(cx).read(cx);
5831 if let Some(hunk) = crate::hunk_diff::to_diff_hunk(&hunk, &snapshot) {
5832 drop(snapshot);
5833 let mut revert_changes = HashMap::default();
5834 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5835 if !revert_changes.is_empty() {
5836 self.revert(revert_changes, cx)
5837 }
5838 }
5839 }
5840
5841 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5842 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5843 let project_path = buffer.read(cx).project_path(cx)?;
5844 let project = self.project.as_ref()?.read(cx);
5845 let entry = project.entry_for_path(&project_path, cx)?;
5846 let parent = match &entry.canonical_path {
5847 Some(canonical_path) => canonical_path.to_path_buf(),
5848 None => project.absolute_path(&project_path, cx)?,
5849 }
5850 .parent()?
5851 .to_path_buf();
5852 Some(parent)
5853 }) {
5854 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5855 }
5856 }
5857
5858 fn gather_revert_changes(
5859 &mut self,
5860 selections: &[Selection<Point>],
5861 cx: &mut ViewContext<'_, Editor>,
5862 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5863 let mut revert_changes = HashMap::default();
5864 let snapshot = self.snapshot(cx);
5865 for hunk in hunks_for_selections(&snapshot, selections) {
5866 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5867 }
5868 revert_changes
5869 }
5870
5871 pub fn prepare_revert_change(
5872 &mut self,
5873 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5874 hunk: &MultiBufferDiffHunk,
5875 cx: &AppContext,
5876 ) -> Option<()> {
5877 let buffer = self.buffer.read(cx).buffer(hunk.buffer_id)?;
5878 let buffer = buffer.read(cx);
5879 let change_set = &self.diff_map.diff_bases.get(&hunk.buffer_id)?.change_set;
5880 let original_text = change_set
5881 .read(cx)
5882 .base_text
5883 .as_ref()?
5884 .read(cx)
5885 .as_rope()
5886 .slice(hunk.diff_base_byte_range.clone());
5887 let buffer_snapshot = buffer.snapshot();
5888 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5889 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5890 probe
5891 .0
5892 .start
5893 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5894 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5895 }) {
5896 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5897 Some(())
5898 } else {
5899 None
5900 }
5901 }
5902
5903 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5904 self.manipulate_lines(cx, |lines| lines.reverse())
5905 }
5906
5907 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5908 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5909 }
5910
5911 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5912 where
5913 Fn: FnMut(&mut Vec<&str>),
5914 {
5915 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5916 let buffer = self.buffer.read(cx).snapshot(cx);
5917
5918 let mut edits = Vec::new();
5919
5920 let selections = self.selections.all::<Point>(cx);
5921 let mut selections = selections.iter().peekable();
5922 let mut contiguous_row_selections = Vec::new();
5923 let mut new_selections = Vec::new();
5924 let mut added_lines = 0;
5925 let mut removed_lines = 0;
5926
5927 while let Some(selection) = selections.next() {
5928 let (start_row, end_row) = consume_contiguous_rows(
5929 &mut contiguous_row_selections,
5930 selection,
5931 &display_map,
5932 &mut selections,
5933 );
5934
5935 let start_point = Point::new(start_row.0, 0);
5936 let end_point = Point::new(
5937 end_row.previous_row().0,
5938 buffer.line_len(end_row.previous_row()),
5939 );
5940 let text = buffer
5941 .text_for_range(start_point..end_point)
5942 .collect::<String>();
5943
5944 let mut lines = text.split('\n').collect_vec();
5945
5946 let lines_before = lines.len();
5947 callback(&mut lines);
5948 let lines_after = lines.len();
5949
5950 edits.push((start_point..end_point, lines.join("\n")));
5951
5952 // Selections must change based on added and removed line count
5953 let start_row =
5954 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
5955 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
5956 new_selections.push(Selection {
5957 id: selection.id,
5958 start: start_row,
5959 end: end_row,
5960 goal: SelectionGoal::None,
5961 reversed: selection.reversed,
5962 });
5963
5964 if lines_after > lines_before {
5965 added_lines += lines_after - lines_before;
5966 } else if lines_before > lines_after {
5967 removed_lines += lines_before - lines_after;
5968 }
5969 }
5970
5971 self.transact(cx, |this, cx| {
5972 let buffer = this.buffer.update(cx, |buffer, cx| {
5973 buffer.edit(edits, None, cx);
5974 buffer.snapshot(cx)
5975 });
5976
5977 // Recalculate offsets on newly edited buffer
5978 let new_selections = new_selections
5979 .iter()
5980 .map(|s| {
5981 let start_point = Point::new(s.start.0, 0);
5982 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
5983 Selection {
5984 id: s.id,
5985 start: buffer.point_to_offset(start_point),
5986 end: buffer.point_to_offset(end_point),
5987 goal: s.goal,
5988 reversed: s.reversed,
5989 }
5990 })
5991 .collect();
5992
5993 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5994 s.select(new_selections);
5995 });
5996
5997 this.request_autoscroll(Autoscroll::fit(), cx);
5998 });
5999 }
6000
6001 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6002 self.manipulate_text(cx, |text| text.to_uppercase())
6003 }
6004
6005 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6006 self.manipulate_text(cx, |text| text.to_lowercase())
6007 }
6008
6009 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6010 self.manipulate_text(cx, |text| {
6011 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6012 // https://github.com/rutrum/convert-case/issues/16
6013 text.split('\n')
6014 .map(|line| line.to_case(Case::Title))
6015 .join("\n")
6016 })
6017 }
6018
6019 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6020 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6021 }
6022
6023 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6024 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6025 }
6026
6027 pub fn convert_to_upper_camel_case(
6028 &mut self,
6029 _: &ConvertToUpperCamelCase,
6030 cx: &mut ViewContext<Self>,
6031 ) {
6032 self.manipulate_text(cx, |text| {
6033 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6034 // https://github.com/rutrum/convert-case/issues/16
6035 text.split('\n')
6036 .map(|line| line.to_case(Case::UpperCamel))
6037 .join("\n")
6038 })
6039 }
6040
6041 pub fn convert_to_lower_camel_case(
6042 &mut self,
6043 _: &ConvertToLowerCamelCase,
6044 cx: &mut ViewContext<Self>,
6045 ) {
6046 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6047 }
6048
6049 pub fn convert_to_opposite_case(
6050 &mut self,
6051 _: &ConvertToOppositeCase,
6052 cx: &mut ViewContext<Self>,
6053 ) {
6054 self.manipulate_text(cx, |text| {
6055 text.chars()
6056 .fold(String::with_capacity(text.len()), |mut t, c| {
6057 if c.is_uppercase() {
6058 t.extend(c.to_lowercase());
6059 } else {
6060 t.extend(c.to_uppercase());
6061 }
6062 t
6063 })
6064 })
6065 }
6066
6067 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6068 where
6069 Fn: FnMut(&str) -> String,
6070 {
6071 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6072 let buffer = self.buffer.read(cx).snapshot(cx);
6073
6074 let mut new_selections = Vec::new();
6075 let mut edits = Vec::new();
6076 let mut selection_adjustment = 0i32;
6077
6078 for selection in self.selections.all::<usize>(cx) {
6079 let selection_is_empty = selection.is_empty();
6080
6081 let (start, end) = if selection_is_empty {
6082 let word_range = movement::surrounding_word(
6083 &display_map,
6084 selection.start.to_display_point(&display_map),
6085 );
6086 let start = word_range.start.to_offset(&display_map, Bias::Left);
6087 let end = word_range.end.to_offset(&display_map, Bias::Left);
6088 (start, end)
6089 } else {
6090 (selection.start, selection.end)
6091 };
6092
6093 let text = buffer.text_for_range(start..end).collect::<String>();
6094 let old_length = text.len() as i32;
6095 let text = callback(&text);
6096
6097 new_selections.push(Selection {
6098 start: (start as i32 - selection_adjustment) as usize,
6099 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6100 goal: SelectionGoal::None,
6101 ..selection
6102 });
6103
6104 selection_adjustment += old_length - text.len() as i32;
6105
6106 edits.push((start..end, text));
6107 }
6108
6109 self.transact(cx, |this, cx| {
6110 this.buffer.update(cx, |buffer, cx| {
6111 buffer.edit(edits, None, cx);
6112 });
6113
6114 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6115 s.select(new_selections);
6116 });
6117
6118 this.request_autoscroll(Autoscroll::fit(), cx);
6119 });
6120 }
6121
6122 pub fn duplicate_selection(&mut self, _: &DuplicateSelection, cx: &mut ViewContext<Self>) {
6123 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6124 let buffer = &display_map.buffer_snapshot;
6125 let selections = self.selections.all::<Point>(cx);
6126
6127 let mut edits = Vec::new();
6128 for selection in selections.iter() {
6129 let start = selection.start;
6130 let end = selection.end;
6131 let text = buffer.text_for_range(start..end).collect::<String>();
6132 edits.push((selection.end..selection.end, text));
6133 }
6134
6135 self.transact(cx, |this, cx| {
6136 this.buffer.update(cx, |buffer, cx| {
6137 buffer.edit(edits, None, cx);
6138 });
6139
6140 this.request_autoscroll(Autoscroll::fit(), cx);
6141 });
6142 }
6143
6144 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6145 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6146 let buffer = &display_map.buffer_snapshot;
6147 let selections = self.selections.all::<Point>(cx);
6148
6149 let mut edits = Vec::new();
6150 let mut selections_iter = selections.iter().peekable();
6151 while let Some(selection) = selections_iter.next() {
6152 // Avoid duplicating the same lines twice.
6153 let mut rows = selection.spanned_rows(false, &display_map);
6154
6155 while let Some(next_selection) = selections_iter.peek() {
6156 let next_rows = next_selection.spanned_rows(false, &display_map);
6157 if next_rows.start < rows.end {
6158 rows.end = next_rows.end;
6159 selections_iter.next().unwrap();
6160 } else {
6161 break;
6162 }
6163 }
6164
6165 // Copy the text from the selected row region and splice it either at the start
6166 // or end of the region.
6167 let start = Point::new(rows.start.0, 0);
6168 let end = Point::new(
6169 rows.end.previous_row().0,
6170 buffer.line_len(rows.end.previous_row()),
6171 );
6172 let text = buffer
6173 .text_for_range(start..end)
6174 .chain(Some("\n"))
6175 .collect::<String>();
6176 let insert_location = if upwards {
6177 Point::new(rows.end.0, 0)
6178 } else {
6179 start
6180 };
6181 edits.push((insert_location..insert_location, text));
6182 }
6183
6184 self.transact(cx, |this, cx| {
6185 this.buffer.update(cx, |buffer, cx| {
6186 buffer.edit(edits, None, cx);
6187 });
6188
6189 this.request_autoscroll(Autoscroll::fit(), cx);
6190 });
6191 }
6192
6193 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6194 self.duplicate_line(true, cx);
6195 }
6196
6197 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6198 self.duplicate_line(false, cx);
6199 }
6200
6201 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6202 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6203 let buffer = self.buffer.read(cx).snapshot(cx);
6204
6205 let mut edits = Vec::new();
6206 let mut unfold_ranges = Vec::new();
6207 let mut refold_creases = Vec::new();
6208
6209 let selections = self.selections.all::<Point>(cx);
6210 let mut selections = selections.iter().peekable();
6211 let mut contiguous_row_selections = Vec::new();
6212 let mut new_selections = Vec::new();
6213
6214 while let Some(selection) = selections.next() {
6215 // Find all the selections that span a contiguous row range
6216 let (start_row, end_row) = consume_contiguous_rows(
6217 &mut contiguous_row_selections,
6218 selection,
6219 &display_map,
6220 &mut selections,
6221 );
6222
6223 // Move the text spanned by the row range to be before the line preceding the row range
6224 if start_row.0 > 0 {
6225 let range_to_move = Point::new(
6226 start_row.previous_row().0,
6227 buffer.line_len(start_row.previous_row()),
6228 )
6229 ..Point::new(
6230 end_row.previous_row().0,
6231 buffer.line_len(end_row.previous_row()),
6232 );
6233 let insertion_point = display_map
6234 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6235 .0;
6236
6237 // Don't move lines across excerpts
6238 if buffer
6239 .excerpt_boundaries_in_range((
6240 Bound::Excluded(insertion_point),
6241 Bound::Included(range_to_move.end),
6242 ))
6243 .next()
6244 .is_none()
6245 {
6246 let text = buffer
6247 .text_for_range(range_to_move.clone())
6248 .flat_map(|s| s.chars())
6249 .skip(1)
6250 .chain(['\n'])
6251 .collect::<String>();
6252
6253 edits.push((
6254 buffer.anchor_after(range_to_move.start)
6255 ..buffer.anchor_before(range_to_move.end),
6256 String::new(),
6257 ));
6258 let insertion_anchor = buffer.anchor_after(insertion_point);
6259 edits.push((insertion_anchor..insertion_anchor, text));
6260
6261 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6262
6263 // Move selections up
6264 new_selections.extend(contiguous_row_selections.drain(..).map(
6265 |mut selection| {
6266 selection.start.row -= row_delta;
6267 selection.end.row -= row_delta;
6268 selection
6269 },
6270 ));
6271
6272 // Move folds up
6273 unfold_ranges.push(range_to_move.clone());
6274 for fold in display_map.folds_in_range(
6275 buffer.anchor_before(range_to_move.start)
6276 ..buffer.anchor_after(range_to_move.end),
6277 ) {
6278 let mut start = fold.range.start.to_point(&buffer);
6279 let mut end = fold.range.end.to_point(&buffer);
6280 start.row -= row_delta;
6281 end.row -= row_delta;
6282 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6283 }
6284 }
6285 }
6286
6287 // If we didn't move line(s), preserve the existing selections
6288 new_selections.append(&mut contiguous_row_selections);
6289 }
6290
6291 self.transact(cx, |this, cx| {
6292 this.unfold_ranges(&unfold_ranges, true, true, cx);
6293 this.buffer.update(cx, |buffer, cx| {
6294 for (range, text) in edits {
6295 buffer.edit([(range, text)], None, cx);
6296 }
6297 });
6298 this.fold_creases(refold_creases, true, cx);
6299 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6300 s.select(new_selections);
6301 })
6302 });
6303 }
6304
6305 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6306 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6307 let buffer = self.buffer.read(cx).snapshot(cx);
6308
6309 let mut edits = Vec::new();
6310 let mut unfold_ranges = Vec::new();
6311 let mut refold_creases = Vec::new();
6312
6313 let selections = self.selections.all::<Point>(cx);
6314 let mut selections = selections.iter().peekable();
6315 let mut contiguous_row_selections = Vec::new();
6316 let mut new_selections = Vec::new();
6317
6318 while let Some(selection) = selections.next() {
6319 // Find all the selections that span a contiguous row range
6320 let (start_row, end_row) = consume_contiguous_rows(
6321 &mut contiguous_row_selections,
6322 selection,
6323 &display_map,
6324 &mut selections,
6325 );
6326
6327 // Move the text spanned by the row range to be after the last line of the row range
6328 if end_row.0 <= buffer.max_point().row {
6329 let range_to_move =
6330 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6331 let insertion_point = display_map
6332 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6333 .0;
6334
6335 // Don't move lines across excerpt boundaries
6336 if buffer
6337 .excerpt_boundaries_in_range((
6338 Bound::Excluded(range_to_move.start),
6339 Bound::Included(insertion_point),
6340 ))
6341 .next()
6342 .is_none()
6343 {
6344 let mut text = String::from("\n");
6345 text.extend(buffer.text_for_range(range_to_move.clone()));
6346 text.pop(); // Drop trailing newline
6347 edits.push((
6348 buffer.anchor_after(range_to_move.start)
6349 ..buffer.anchor_before(range_to_move.end),
6350 String::new(),
6351 ));
6352 let insertion_anchor = buffer.anchor_after(insertion_point);
6353 edits.push((insertion_anchor..insertion_anchor, text));
6354
6355 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6356
6357 // Move selections down
6358 new_selections.extend(contiguous_row_selections.drain(..).map(
6359 |mut selection| {
6360 selection.start.row += row_delta;
6361 selection.end.row += row_delta;
6362 selection
6363 },
6364 ));
6365
6366 // Move folds down
6367 unfold_ranges.push(range_to_move.clone());
6368 for fold in display_map.folds_in_range(
6369 buffer.anchor_before(range_to_move.start)
6370 ..buffer.anchor_after(range_to_move.end),
6371 ) {
6372 let mut start = fold.range.start.to_point(&buffer);
6373 let mut end = fold.range.end.to_point(&buffer);
6374 start.row += row_delta;
6375 end.row += row_delta;
6376 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6377 }
6378 }
6379 }
6380
6381 // If we didn't move line(s), preserve the existing selections
6382 new_selections.append(&mut contiguous_row_selections);
6383 }
6384
6385 self.transact(cx, |this, cx| {
6386 this.unfold_ranges(&unfold_ranges, true, true, cx);
6387 this.buffer.update(cx, |buffer, cx| {
6388 for (range, text) in edits {
6389 buffer.edit([(range, text)], None, cx);
6390 }
6391 });
6392 this.fold_creases(refold_creases, true, cx);
6393 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6394 });
6395 }
6396
6397 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6398 let text_layout_details = &self.text_layout_details(cx);
6399 self.transact(cx, |this, cx| {
6400 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6401 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6402 let line_mode = s.line_mode;
6403 s.move_with(|display_map, selection| {
6404 if !selection.is_empty() || line_mode {
6405 return;
6406 }
6407
6408 let mut head = selection.head();
6409 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6410 if head.column() == display_map.line_len(head.row()) {
6411 transpose_offset = display_map
6412 .buffer_snapshot
6413 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6414 }
6415
6416 if transpose_offset == 0 {
6417 return;
6418 }
6419
6420 *head.column_mut() += 1;
6421 head = display_map.clip_point(head, Bias::Right);
6422 let goal = SelectionGoal::HorizontalPosition(
6423 display_map
6424 .x_for_display_point(head, text_layout_details)
6425 .into(),
6426 );
6427 selection.collapse_to(head, goal);
6428
6429 let transpose_start = display_map
6430 .buffer_snapshot
6431 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6432 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6433 let transpose_end = display_map
6434 .buffer_snapshot
6435 .clip_offset(transpose_offset + 1, Bias::Right);
6436 if let Some(ch) =
6437 display_map.buffer_snapshot.chars_at(transpose_start).next()
6438 {
6439 edits.push((transpose_start..transpose_offset, String::new()));
6440 edits.push((transpose_end..transpose_end, ch.to_string()));
6441 }
6442 }
6443 });
6444 edits
6445 });
6446 this.buffer
6447 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6448 let selections = this.selections.all::<usize>(cx);
6449 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6450 s.select(selections);
6451 });
6452 });
6453 }
6454
6455 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6456 self.rewrap_impl(IsVimMode::No, cx)
6457 }
6458
6459 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
6460 let buffer = self.buffer.read(cx).snapshot(cx);
6461 let selections = self.selections.all::<Point>(cx);
6462 let mut selections = selections.iter().peekable();
6463
6464 let mut edits = Vec::new();
6465 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6466
6467 while let Some(selection) = selections.next() {
6468 let mut start_row = selection.start.row;
6469 let mut end_row = selection.end.row;
6470
6471 // Skip selections that overlap with a range that has already been rewrapped.
6472 let selection_range = start_row..end_row;
6473 if rewrapped_row_ranges
6474 .iter()
6475 .any(|range| range.overlaps(&selection_range))
6476 {
6477 continue;
6478 }
6479
6480 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
6481
6482 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6483 match language_scope.language_name().0.as_ref() {
6484 "Markdown" | "Plain Text" => {
6485 should_rewrap = true;
6486 }
6487 _ => {}
6488 }
6489 }
6490
6491 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
6492
6493 // Since not all lines in the selection may be at the same indent
6494 // level, choose the indent size that is the most common between all
6495 // of the lines.
6496 //
6497 // If there is a tie, we use the deepest indent.
6498 let (indent_size, indent_end) = {
6499 let mut indent_size_occurrences = HashMap::default();
6500 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6501
6502 for row in start_row..=end_row {
6503 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6504 rows_by_indent_size.entry(indent).or_default().push(row);
6505 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6506 }
6507
6508 let indent_size = indent_size_occurrences
6509 .into_iter()
6510 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
6511 .map(|(indent, _)| indent)
6512 .unwrap_or_default();
6513 let row = rows_by_indent_size[&indent_size][0];
6514 let indent_end = Point::new(row, indent_size.len);
6515
6516 (indent_size, indent_end)
6517 };
6518
6519 let mut line_prefix = indent_size.chars().collect::<String>();
6520
6521 if let Some(comment_prefix) =
6522 buffer
6523 .language_scope_at(selection.head())
6524 .and_then(|language| {
6525 language
6526 .line_comment_prefixes()
6527 .iter()
6528 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6529 .cloned()
6530 })
6531 {
6532 line_prefix.push_str(&comment_prefix);
6533 should_rewrap = true;
6534 }
6535
6536 if !should_rewrap {
6537 continue;
6538 }
6539
6540 if selection.is_empty() {
6541 'expand_upwards: while start_row > 0 {
6542 let prev_row = start_row - 1;
6543 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6544 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6545 {
6546 start_row = prev_row;
6547 } else {
6548 break 'expand_upwards;
6549 }
6550 }
6551
6552 'expand_downwards: while end_row < buffer.max_point().row {
6553 let next_row = end_row + 1;
6554 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6555 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6556 {
6557 end_row = next_row;
6558 } else {
6559 break 'expand_downwards;
6560 }
6561 }
6562 }
6563
6564 let start = Point::new(start_row, 0);
6565 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6566 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6567 let Some(lines_without_prefixes) = selection_text
6568 .lines()
6569 .map(|line| {
6570 line.strip_prefix(&line_prefix)
6571 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6572 .ok_or_else(|| {
6573 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6574 })
6575 })
6576 .collect::<Result<Vec<_>, _>>()
6577 .log_err()
6578 else {
6579 continue;
6580 };
6581
6582 let wrap_column = buffer
6583 .settings_at(Point::new(start_row, 0), cx)
6584 .preferred_line_length as usize;
6585 let wrapped_text = wrap_with_prefix(
6586 line_prefix,
6587 lines_without_prefixes.join(" "),
6588 wrap_column,
6589 tab_size,
6590 );
6591
6592 // TODO: should always use char-based diff while still supporting cursor behavior that
6593 // matches vim.
6594 let diff = match is_vim_mode {
6595 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
6596 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
6597 };
6598 let mut offset = start.to_offset(&buffer);
6599 let mut moved_since_edit = true;
6600
6601 for change in diff.iter_all_changes() {
6602 let value = change.value();
6603 match change.tag() {
6604 ChangeTag::Equal => {
6605 offset += value.len();
6606 moved_since_edit = true;
6607 }
6608 ChangeTag::Delete => {
6609 let start = buffer.anchor_after(offset);
6610 let end = buffer.anchor_before(offset + value.len());
6611
6612 if moved_since_edit {
6613 edits.push((start..end, String::new()));
6614 } else {
6615 edits.last_mut().unwrap().0.end = end;
6616 }
6617
6618 offset += value.len();
6619 moved_since_edit = false;
6620 }
6621 ChangeTag::Insert => {
6622 if moved_since_edit {
6623 let anchor = buffer.anchor_after(offset);
6624 edits.push((anchor..anchor, value.to_string()));
6625 } else {
6626 edits.last_mut().unwrap().1.push_str(value);
6627 }
6628
6629 moved_since_edit = false;
6630 }
6631 }
6632 }
6633
6634 rewrapped_row_ranges.push(start_row..=end_row);
6635 }
6636
6637 self.buffer
6638 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6639 }
6640
6641 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
6642 let mut text = String::new();
6643 let buffer = self.buffer.read(cx).snapshot(cx);
6644 let mut selections = self.selections.all::<Point>(cx);
6645 let mut clipboard_selections = Vec::with_capacity(selections.len());
6646 {
6647 let max_point = buffer.max_point();
6648 let mut is_first = true;
6649 for selection in &mut selections {
6650 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6651 if is_entire_line {
6652 selection.start = Point::new(selection.start.row, 0);
6653 if !selection.is_empty() && selection.end.column == 0 {
6654 selection.end = cmp::min(max_point, selection.end);
6655 } else {
6656 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6657 }
6658 selection.goal = SelectionGoal::None;
6659 }
6660 if is_first {
6661 is_first = false;
6662 } else {
6663 text += "\n";
6664 }
6665 let mut len = 0;
6666 for chunk in buffer.text_for_range(selection.start..selection.end) {
6667 text.push_str(chunk);
6668 len += chunk.len();
6669 }
6670 clipboard_selections.push(ClipboardSelection {
6671 len,
6672 is_entire_line,
6673 first_line_indent: buffer
6674 .indent_size_for_line(MultiBufferRow(selection.start.row))
6675 .len,
6676 });
6677 }
6678 }
6679
6680 self.transact(cx, |this, cx| {
6681 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6682 s.select(selections);
6683 });
6684 this.insert("", cx);
6685 });
6686 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
6687 }
6688
6689 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6690 let item = self.cut_common(cx);
6691 cx.write_to_clipboard(item);
6692 }
6693
6694 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
6695 self.change_selections(None, cx, |s| {
6696 s.move_with(|snapshot, sel| {
6697 if sel.is_empty() {
6698 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
6699 }
6700 });
6701 });
6702 let item = self.cut_common(cx);
6703 cx.set_global(KillRing(item))
6704 }
6705
6706 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
6707 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
6708 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
6709 (kill_ring.text().to_string(), kill_ring.metadata_json())
6710 } else {
6711 return;
6712 }
6713 } else {
6714 return;
6715 };
6716 self.do_paste(&text, metadata, false, cx);
6717 }
6718
6719 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6720 let selections = self.selections.all::<Point>(cx);
6721 let buffer = self.buffer.read(cx).read(cx);
6722 let mut text = String::new();
6723
6724 let mut clipboard_selections = Vec::with_capacity(selections.len());
6725 {
6726 let max_point = buffer.max_point();
6727 let mut is_first = true;
6728 for selection in selections.iter() {
6729 let mut start = selection.start;
6730 let mut end = selection.end;
6731 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6732 if is_entire_line {
6733 start = Point::new(start.row, 0);
6734 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6735 }
6736 if is_first {
6737 is_first = false;
6738 } else {
6739 text += "\n";
6740 }
6741 let mut len = 0;
6742 for chunk in buffer.text_for_range(start..end) {
6743 text.push_str(chunk);
6744 len += chunk.len();
6745 }
6746 clipboard_selections.push(ClipboardSelection {
6747 len,
6748 is_entire_line,
6749 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6750 });
6751 }
6752 }
6753
6754 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6755 text,
6756 clipboard_selections,
6757 ));
6758 }
6759
6760 pub fn do_paste(
6761 &mut self,
6762 text: &String,
6763 clipboard_selections: Option<Vec<ClipboardSelection>>,
6764 handle_entire_lines: bool,
6765 cx: &mut ViewContext<Self>,
6766 ) {
6767 if self.read_only(cx) {
6768 return;
6769 }
6770
6771 let clipboard_text = Cow::Borrowed(text);
6772
6773 self.transact(cx, |this, cx| {
6774 if let Some(mut clipboard_selections) = clipboard_selections {
6775 let old_selections = this.selections.all::<usize>(cx);
6776 let all_selections_were_entire_line =
6777 clipboard_selections.iter().all(|s| s.is_entire_line);
6778 let first_selection_indent_column =
6779 clipboard_selections.first().map(|s| s.first_line_indent);
6780 if clipboard_selections.len() != old_selections.len() {
6781 clipboard_selections.drain(..);
6782 }
6783 let cursor_offset = this.selections.last::<usize>(cx).head();
6784 let mut auto_indent_on_paste = true;
6785
6786 this.buffer.update(cx, |buffer, cx| {
6787 let snapshot = buffer.read(cx);
6788 auto_indent_on_paste =
6789 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
6790
6791 let mut start_offset = 0;
6792 let mut edits = Vec::new();
6793 let mut original_indent_columns = Vec::new();
6794 for (ix, selection) in old_selections.iter().enumerate() {
6795 let to_insert;
6796 let entire_line;
6797 let original_indent_column;
6798 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6799 let end_offset = start_offset + clipboard_selection.len;
6800 to_insert = &clipboard_text[start_offset..end_offset];
6801 entire_line = clipboard_selection.is_entire_line;
6802 start_offset = end_offset + 1;
6803 original_indent_column = Some(clipboard_selection.first_line_indent);
6804 } else {
6805 to_insert = clipboard_text.as_str();
6806 entire_line = all_selections_were_entire_line;
6807 original_indent_column = first_selection_indent_column
6808 }
6809
6810 // If the corresponding selection was empty when this slice of the
6811 // clipboard text was written, then the entire line containing the
6812 // selection was copied. If this selection is also currently empty,
6813 // then paste the line before the current line of the buffer.
6814 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6815 let column = selection.start.to_point(&snapshot).column as usize;
6816 let line_start = selection.start - column;
6817 line_start..line_start
6818 } else {
6819 selection.range()
6820 };
6821
6822 edits.push((range, to_insert));
6823 original_indent_columns.extend(original_indent_column);
6824 }
6825 drop(snapshot);
6826
6827 buffer.edit(
6828 edits,
6829 if auto_indent_on_paste {
6830 Some(AutoindentMode::Block {
6831 original_indent_columns,
6832 })
6833 } else {
6834 None
6835 },
6836 cx,
6837 );
6838 });
6839
6840 let selections = this.selections.all::<usize>(cx);
6841 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6842 } else {
6843 this.insert(&clipboard_text, cx);
6844 }
6845 });
6846 }
6847
6848 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6849 if let Some(item) = cx.read_from_clipboard() {
6850 let entries = item.entries();
6851
6852 match entries.first() {
6853 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
6854 // of all the pasted entries.
6855 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
6856 .do_paste(
6857 clipboard_string.text(),
6858 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
6859 true,
6860 cx,
6861 ),
6862 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
6863 }
6864 }
6865 }
6866
6867 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6868 if self.read_only(cx) {
6869 return;
6870 }
6871
6872 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6873 if let Some((selections, _)) =
6874 self.selection_history.transaction(transaction_id).cloned()
6875 {
6876 self.change_selections(None, cx, |s| {
6877 s.select_anchors(selections.to_vec());
6878 });
6879 }
6880 self.request_autoscroll(Autoscroll::fit(), cx);
6881 self.unmark_text(cx);
6882 self.refresh_inline_completion(true, false, cx);
6883 cx.emit(EditorEvent::Edited { transaction_id });
6884 cx.emit(EditorEvent::TransactionUndone { transaction_id });
6885 }
6886 }
6887
6888 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6889 if self.read_only(cx) {
6890 return;
6891 }
6892
6893 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6894 if let Some((_, Some(selections))) =
6895 self.selection_history.transaction(transaction_id).cloned()
6896 {
6897 self.change_selections(None, cx, |s| {
6898 s.select_anchors(selections.to_vec());
6899 });
6900 }
6901 self.request_autoscroll(Autoscroll::fit(), cx);
6902 self.unmark_text(cx);
6903 self.refresh_inline_completion(true, false, cx);
6904 cx.emit(EditorEvent::Edited { transaction_id });
6905 }
6906 }
6907
6908 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6909 self.buffer
6910 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6911 }
6912
6913 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6914 self.buffer
6915 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6916 }
6917
6918 pub fn move_left(&mut self, _: &MoveLeft, 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::left(map, selection.start)
6924 } else {
6925 selection.start
6926 };
6927 selection.collapse_to(cursor, SelectionGoal::None);
6928 });
6929 })
6930 }
6931
6932 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6933 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6934 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6935 })
6936 }
6937
6938 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6939 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6940 let line_mode = s.line_mode;
6941 s.move_with(|map, selection| {
6942 let cursor = if selection.is_empty() && !line_mode {
6943 movement::right(map, selection.end)
6944 } else {
6945 selection.end
6946 };
6947 selection.collapse_to(cursor, SelectionGoal::None)
6948 });
6949 })
6950 }
6951
6952 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6953 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6954 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6955 })
6956 }
6957
6958 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6959 if self.take_rename(true, cx).is_some() {
6960 return;
6961 }
6962
6963 if matches!(self.mode, EditorMode::SingleLine { .. }) {
6964 cx.propagate();
6965 return;
6966 }
6967
6968 let text_layout_details = &self.text_layout_details(cx);
6969 let selection_count = self.selections.count();
6970 let first_selection = self.selections.first_anchor();
6971
6972 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6973 let line_mode = s.line_mode;
6974 s.move_with(|map, selection| {
6975 if !selection.is_empty() && !line_mode {
6976 selection.goal = SelectionGoal::None;
6977 }
6978 let (cursor, goal) = movement::up(
6979 map,
6980 selection.start,
6981 selection.goal,
6982 false,
6983 text_layout_details,
6984 );
6985 selection.collapse_to(cursor, goal);
6986 });
6987 });
6988
6989 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
6990 {
6991 cx.propagate();
6992 }
6993 }
6994
6995 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6996 if self.take_rename(true, cx).is_some() {
6997 return;
6998 }
6999
7000 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7001 cx.propagate();
7002 return;
7003 }
7004
7005 let text_layout_details = &self.text_layout_details(cx);
7006
7007 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7008 let line_mode = s.line_mode;
7009 s.move_with(|map, selection| {
7010 if !selection.is_empty() && !line_mode {
7011 selection.goal = SelectionGoal::None;
7012 }
7013 let (cursor, goal) = movement::up_by_rows(
7014 map,
7015 selection.start,
7016 action.lines,
7017 selection.goal,
7018 false,
7019 text_layout_details,
7020 );
7021 selection.collapse_to(cursor, goal);
7022 });
7023 })
7024 }
7025
7026 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7027 if self.take_rename(true, cx).is_some() {
7028 return;
7029 }
7030
7031 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7032 cx.propagate();
7033 return;
7034 }
7035
7036 let text_layout_details = &self.text_layout_details(cx);
7037
7038 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7039 let line_mode = s.line_mode;
7040 s.move_with(|map, selection| {
7041 if !selection.is_empty() && !line_mode {
7042 selection.goal = SelectionGoal::None;
7043 }
7044 let (cursor, goal) = movement::down_by_rows(
7045 map,
7046 selection.start,
7047 action.lines,
7048 selection.goal,
7049 false,
7050 text_layout_details,
7051 );
7052 selection.collapse_to(cursor, goal);
7053 });
7054 })
7055 }
7056
7057 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7058 let text_layout_details = &self.text_layout_details(cx);
7059 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7060 s.move_heads_with(|map, head, goal| {
7061 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7062 })
7063 })
7064 }
7065
7066 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7067 let text_layout_details = &self.text_layout_details(cx);
7068 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7069 s.move_heads_with(|map, head, goal| {
7070 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7071 })
7072 })
7073 }
7074
7075 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7076 let Some(row_count) = self.visible_row_count() else {
7077 return;
7078 };
7079
7080 let text_layout_details = &self.text_layout_details(cx);
7081
7082 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7083 s.move_heads_with(|map, head, goal| {
7084 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7085 })
7086 })
7087 }
7088
7089 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7090 if self.take_rename(true, cx).is_some() {
7091 return;
7092 }
7093
7094 if self
7095 .context_menu
7096 .write()
7097 .as_mut()
7098 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7099 .unwrap_or(false)
7100 {
7101 return;
7102 }
7103
7104 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7105 cx.propagate();
7106 return;
7107 }
7108
7109 let Some(row_count) = self.visible_row_count() else {
7110 return;
7111 };
7112
7113 let autoscroll = if action.center_cursor {
7114 Autoscroll::center()
7115 } else {
7116 Autoscroll::fit()
7117 };
7118
7119 let text_layout_details = &self.text_layout_details(cx);
7120
7121 self.change_selections(Some(autoscroll), cx, |s| {
7122 let line_mode = s.line_mode;
7123 s.move_with(|map, selection| {
7124 if !selection.is_empty() && !line_mode {
7125 selection.goal = SelectionGoal::None;
7126 }
7127 let (cursor, goal) = movement::up_by_rows(
7128 map,
7129 selection.end,
7130 row_count,
7131 selection.goal,
7132 false,
7133 text_layout_details,
7134 );
7135 selection.collapse_to(cursor, goal);
7136 });
7137 });
7138 }
7139
7140 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7141 let text_layout_details = &self.text_layout_details(cx);
7142 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7143 s.move_heads_with(|map, head, goal| {
7144 movement::up(map, head, goal, false, text_layout_details)
7145 })
7146 })
7147 }
7148
7149 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7150 self.take_rename(true, cx);
7151
7152 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7153 cx.propagate();
7154 return;
7155 }
7156
7157 let text_layout_details = &self.text_layout_details(cx);
7158 let selection_count = self.selections.count();
7159 let first_selection = self.selections.first_anchor();
7160
7161 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7162 let line_mode = s.line_mode;
7163 s.move_with(|map, selection| {
7164 if !selection.is_empty() && !line_mode {
7165 selection.goal = SelectionGoal::None;
7166 }
7167 let (cursor, goal) = movement::down(
7168 map,
7169 selection.end,
7170 selection.goal,
7171 false,
7172 text_layout_details,
7173 );
7174 selection.collapse_to(cursor, goal);
7175 });
7176 });
7177
7178 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7179 {
7180 cx.propagate();
7181 }
7182 }
7183
7184 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7185 let Some(row_count) = self.visible_row_count() else {
7186 return;
7187 };
7188
7189 let text_layout_details = &self.text_layout_details(cx);
7190
7191 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7192 s.move_heads_with(|map, head, goal| {
7193 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7194 })
7195 })
7196 }
7197
7198 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7199 if self.take_rename(true, cx).is_some() {
7200 return;
7201 }
7202
7203 if self
7204 .context_menu
7205 .write()
7206 .as_mut()
7207 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7208 .unwrap_or(false)
7209 {
7210 return;
7211 }
7212
7213 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7214 cx.propagate();
7215 return;
7216 }
7217
7218 let Some(row_count) = self.visible_row_count() else {
7219 return;
7220 };
7221
7222 let autoscroll = if action.center_cursor {
7223 Autoscroll::center()
7224 } else {
7225 Autoscroll::fit()
7226 };
7227
7228 let text_layout_details = &self.text_layout_details(cx);
7229 self.change_selections(Some(autoscroll), cx, |s| {
7230 let line_mode = s.line_mode;
7231 s.move_with(|map, selection| {
7232 if !selection.is_empty() && !line_mode {
7233 selection.goal = SelectionGoal::None;
7234 }
7235 let (cursor, goal) = movement::down_by_rows(
7236 map,
7237 selection.end,
7238 row_count,
7239 selection.goal,
7240 false,
7241 text_layout_details,
7242 );
7243 selection.collapse_to(cursor, goal);
7244 });
7245 });
7246 }
7247
7248 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7249 let text_layout_details = &self.text_layout_details(cx);
7250 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7251 s.move_heads_with(|map, head, goal| {
7252 movement::down(map, head, goal, false, text_layout_details)
7253 })
7254 });
7255 }
7256
7257 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7258 if let Some(context_menu) = self.context_menu.write().as_mut() {
7259 context_menu.select_first(self.completion_provider.as_deref(), cx);
7260 }
7261 }
7262
7263 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7264 if let Some(context_menu) = self.context_menu.write().as_mut() {
7265 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7266 }
7267 }
7268
7269 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7270 if let Some(context_menu) = self.context_menu.write().as_mut() {
7271 context_menu.select_next(self.completion_provider.as_deref(), cx);
7272 }
7273 }
7274
7275 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7276 if let Some(context_menu) = self.context_menu.write().as_mut() {
7277 context_menu.select_last(self.completion_provider.as_deref(), cx);
7278 }
7279 }
7280
7281 pub fn move_to_previous_word_start(
7282 &mut self,
7283 _: &MoveToPreviousWordStart,
7284 cx: &mut ViewContext<Self>,
7285 ) {
7286 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7287 s.move_cursors_with(|map, head, _| {
7288 (
7289 movement::previous_word_start(map, head),
7290 SelectionGoal::None,
7291 )
7292 });
7293 })
7294 }
7295
7296 pub fn move_to_previous_subword_start(
7297 &mut self,
7298 _: &MoveToPreviousSubwordStart,
7299 cx: &mut ViewContext<Self>,
7300 ) {
7301 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7302 s.move_cursors_with(|map, head, _| {
7303 (
7304 movement::previous_subword_start(map, head),
7305 SelectionGoal::None,
7306 )
7307 });
7308 })
7309 }
7310
7311 pub fn select_to_previous_word_start(
7312 &mut self,
7313 _: &SelectToPreviousWordStart,
7314 cx: &mut ViewContext<Self>,
7315 ) {
7316 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7317 s.move_heads_with(|map, head, _| {
7318 (
7319 movement::previous_word_start(map, head),
7320 SelectionGoal::None,
7321 )
7322 });
7323 })
7324 }
7325
7326 pub fn select_to_previous_subword_start(
7327 &mut self,
7328 _: &SelectToPreviousSubwordStart,
7329 cx: &mut ViewContext<Self>,
7330 ) {
7331 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7332 s.move_heads_with(|map, head, _| {
7333 (
7334 movement::previous_subword_start(map, head),
7335 SelectionGoal::None,
7336 )
7337 });
7338 })
7339 }
7340
7341 pub fn delete_to_previous_word_start(
7342 &mut self,
7343 action: &DeleteToPreviousWordStart,
7344 cx: &mut ViewContext<Self>,
7345 ) {
7346 self.transact(cx, |this, cx| {
7347 this.select_autoclose_pair(cx);
7348 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7349 let line_mode = s.line_mode;
7350 s.move_with(|map, selection| {
7351 if selection.is_empty() && !line_mode {
7352 let cursor = if action.ignore_newlines {
7353 movement::previous_word_start(map, selection.head())
7354 } else {
7355 movement::previous_word_start_or_newline(map, selection.head())
7356 };
7357 selection.set_head(cursor, SelectionGoal::None);
7358 }
7359 });
7360 });
7361 this.insert("", cx);
7362 });
7363 }
7364
7365 pub fn delete_to_previous_subword_start(
7366 &mut self,
7367 _: &DeleteToPreviousSubwordStart,
7368 cx: &mut ViewContext<Self>,
7369 ) {
7370 self.transact(cx, |this, cx| {
7371 this.select_autoclose_pair(cx);
7372 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7373 let line_mode = s.line_mode;
7374 s.move_with(|map, selection| {
7375 if selection.is_empty() && !line_mode {
7376 let cursor = movement::previous_subword_start(map, selection.head());
7377 selection.set_head(cursor, SelectionGoal::None);
7378 }
7379 });
7380 });
7381 this.insert("", cx);
7382 });
7383 }
7384
7385 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7386 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7387 s.move_cursors_with(|map, head, _| {
7388 (movement::next_word_end(map, head), SelectionGoal::None)
7389 });
7390 })
7391 }
7392
7393 pub fn move_to_next_subword_end(
7394 &mut self,
7395 _: &MoveToNextSubwordEnd,
7396 cx: &mut ViewContext<Self>,
7397 ) {
7398 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7399 s.move_cursors_with(|map, head, _| {
7400 (movement::next_subword_end(map, head), SelectionGoal::None)
7401 });
7402 })
7403 }
7404
7405 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7406 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7407 s.move_heads_with(|map, head, _| {
7408 (movement::next_word_end(map, head), SelectionGoal::None)
7409 });
7410 })
7411 }
7412
7413 pub fn select_to_next_subword_end(
7414 &mut self,
7415 _: &SelectToNextSubwordEnd,
7416 cx: &mut ViewContext<Self>,
7417 ) {
7418 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7419 s.move_heads_with(|map, head, _| {
7420 (movement::next_subword_end(map, head), SelectionGoal::None)
7421 });
7422 })
7423 }
7424
7425 pub fn delete_to_next_word_end(
7426 &mut self,
7427 action: &DeleteToNextWordEnd,
7428 cx: &mut ViewContext<Self>,
7429 ) {
7430 self.transact(cx, |this, cx| {
7431 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7432 let line_mode = s.line_mode;
7433 s.move_with(|map, selection| {
7434 if selection.is_empty() && !line_mode {
7435 let cursor = if action.ignore_newlines {
7436 movement::next_word_end(map, selection.head())
7437 } else {
7438 movement::next_word_end_or_newline(map, selection.head())
7439 };
7440 selection.set_head(cursor, SelectionGoal::None);
7441 }
7442 });
7443 });
7444 this.insert("", cx);
7445 });
7446 }
7447
7448 pub fn delete_to_next_subword_end(
7449 &mut self,
7450 _: &DeleteToNextSubwordEnd,
7451 cx: &mut ViewContext<Self>,
7452 ) {
7453 self.transact(cx, |this, cx| {
7454 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7455 s.move_with(|map, selection| {
7456 if selection.is_empty() {
7457 let cursor = movement::next_subword_end(map, selection.head());
7458 selection.set_head(cursor, SelectionGoal::None);
7459 }
7460 });
7461 });
7462 this.insert("", cx);
7463 });
7464 }
7465
7466 pub fn move_to_beginning_of_line(
7467 &mut self,
7468 action: &MoveToBeginningOfLine,
7469 cx: &mut ViewContext<Self>,
7470 ) {
7471 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7472 s.move_cursors_with(|map, head, _| {
7473 (
7474 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7475 SelectionGoal::None,
7476 )
7477 });
7478 })
7479 }
7480
7481 pub fn select_to_beginning_of_line(
7482 &mut self,
7483 action: &SelectToBeginningOfLine,
7484 cx: &mut ViewContext<Self>,
7485 ) {
7486 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7487 s.move_heads_with(|map, head, _| {
7488 (
7489 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7490 SelectionGoal::None,
7491 )
7492 });
7493 });
7494 }
7495
7496 pub fn delete_to_beginning_of_line(
7497 &mut self,
7498 _: &DeleteToBeginningOfLine,
7499 cx: &mut ViewContext<Self>,
7500 ) {
7501 self.transact(cx, |this, cx| {
7502 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7503 s.move_with(|_, selection| {
7504 selection.reversed = true;
7505 });
7506 });
7507
7508 this.select_to_beginning_of_line(
7509 &SelectToBeginningOfLine {
7510 stop_at_soft_wraps: false,
7511 },
7512 cx,
7513 );
7514 this.backspace(&Backspace, cx);
7515 });
7516 }
7517
7518 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7519 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7520 s.move_cursors_with(|map, head, _| {
7521 (
7522 movement::line_end(map, head, action.stop_at_soft_wraps),
7523 SelectionGoal::None,
7524 )
7525 });
7526 })
7527 }
7528
7529 pub fn select_to_end_of_line(
7530 &mut self,
7531 action: &SelectToEndOfLine,
7532 cx: &mut ViewContext<Self>,
7533 ) {
7534 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7535 s.move_heads_with(|map, head, _| {
7536 (
7537 movement::line_end(map, head, action.stop_at_soft_wraps),
7538 SelectionGoal::None,
7539 )
7540 });
7541 })
7542 }
7543
7544 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7545 self.transact(cx, |this, cx| {
7546 this.select_to_end_of_line(
7547 &SelectToEndOfLine {
7548 stop_at_soft_wraps: false,
7549 },
7550 cx,
7551 );
7552 this.delete(&Delete, cx);
7553 });
7554 }
7555
7556 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7557 self.transact(cx, |this, cx| {
7558 this.select_to_end_of_line(
7559 &SelectToEndOfLine {
7560 stop_at_soft_wraps: false,
7561 },
7562 cx,
7563 );
7564 this.cut(&Cut, cx);
7565 });
7566 }
7567
7568 pub fn move_to_start_of_paragraph(
7569 &mut self,
7570 _: &MoveToStartOfParagraph,
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::start_of_paragraph(map, selection.head(), 1),
7582 SelectionGoal::None,
7583 )
7584 });
7585 })
7586 }
7587
7588 pub fn move_to_end_of_paragraph(
7589 &mut self,
7590 _: &MoveToEndOfParagraph,
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_with(|map, selection| {
7600 selection.collapse_to(
7601 movement::end_of_paragraph(map, selection.head(), 1),
7602 SelectionGoal::None,
7603 )
7604 });
7605 })
7606 }
7607
7608 pub fn select_to_start_of_paragraph(
7609 &mut self,
7610 _: &SelectToStartOfParagraph,
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::start_of_paragraph(map, head, 1),
7622 SelectionGoal::None,
7623 )
7624 });
7625 })
7626 }
7627
7628 pub fn select_to_end_of_paragraph(
7629 &mut self,
7630 _: &SelectToEndOfParagraph,
7631 cx: &mut ViewContext<Self>,
7632 ) {
7633 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7634 cx.propagate();
7635 return;
7636 }
7637
7638 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7639 s.move_heads_with(|map, head, _| {
7640 (
7641 movement::end_of_paragraph(map, head, 1),
7642 SelectionGoal::None,
7643 )
7644 });
7645 })
7646 }
7647
7648 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7649 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7650 cx.propagate();
7651 return;
7652 }
7653
7654 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7655 s.select_ranges(vec![0..0]);
7656 });
7657 }
7658
7659 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7660 let mut selection = self.selections.last::<Point>(cx);
7661 selection.set_head(Point::zero(), SelectionGoal::None);
7662
7663 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7664 s.select(vec![selection]);
7665 });
7666 }
7667
7668 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7669 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7670 cx.propagate();
7671 return;
7672 }
7673
7674 let cursor = self.buffer.read(cx).read(cx).len();
7675 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7676 s.select_ranges(vec![cursor..cursor])
7677 });
7678 }
7679
7680 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7681 self.nav_history = nav_history;
7682 }
7683
7684 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7685 self.nav_history.as_ref()
7686 }
7687
7688 fn push_to_nav_history(
7689 &mut self,
7690 cursor_anchor: Anchor,
7691 new_position: Option<Point>,
7692 cx: &mut ViewContext<Self>,
7693 ) {
7694 if let Some(nav_history) = self.nav_history.as_mut() {
7695 let buffer = self.buffer.read(cx).read(cx);
7696 let cursor_position = cursor_anchor.to_point(&buffer);
7697 let scroll_state = self.scroll_manager.anchor();
7698 let scroll_top_row = scroll_state.top_row(&buffer);
7699 drop(buffer);
7700
7701 if let Some(new_position) = new_position {
7702 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7703 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7704 return;
7705 }
7706 }
7707
7708 nav_history.push(
7709 Some(NavigationData {
7710 cursor_anchor,
7711 cursor_position,
7712 scroll_anchor: scroll_state,
7713 scroll_top_row,
7714 }),
7715 cx,
7716 );
7717 }
7718 }
7719
7720 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7721 let buffer = self.buffer.read(cx).snapshot(cx);
7722 let mut selection = self.selections.first::<usize>(cx);
7723 selection.set_head(buffer.len(), SelectionGoal::None);
7724 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7725 s.select(vec![selection]);
7726 });
7727 }
7728
7729 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7730 let end = self.buffer.read(cx).read(cx).len();
7731 self.change_selections(None, cx, |s| {
7732 s.select_ranges(vec![0..end]);
7733 });
7734 }
7735
7736 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7737 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7738 let mut selections = self.selections.all::<Point>(cx);
7739 let max_point = display_map.buffer_snapshot.max_point();
7740 for selection in &mut selections {
7741 let rows = selection.spanned_rows(true, &display_map);
7742 selection.start = Point::new(rows.start.0, 0);
7743 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7744 selection.reversed = false;
7745 }
7746 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7747 s.select(selections);
7748 });
7749 }
7750
7751 pub fn split_selection_into_lines(
7752 &mut self,
7753 _: &SplitSelectionIntoLines,
7754 cx: &mut ViewContext<Self>,
7755 ) {
7756 let mut to_unfold = Vec::new();
7757 let mut new_selection_ranges = Vec::new();
7758 {
7759 let selections = self.selections.all::<Point>(cx);
7760 let buffer = self.buffer.read(cx).read(cx);
7761 for selection in selections {
7762 for row in selection.start.row..selection.end.row {
7763 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7764 new_selection_ranges.push(cursor..cursor);
7765 }
7766 new_selection_ranges.push(selection.end..selection.end);
7767 to_unfold.push(selection.start..selection.end);
7768 }
7769 }
7770 self.unfold_ranges(&to_unfold, true, true, cx);
7771 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7772 s.select_ranges(new_selection_ranges);
7773 });
7774 }
7775
7776 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7777 self.add_selection(true, cx);
7778 }
7779
7780 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7781 self.add_selection(false, cx);
7782 }
7783
7784 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7785 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7786 let mut selections = self.selections.all::<Point>(cx);
7787 let text_layout_details = self.text_layout_details(cx);
7788 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7789 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7790 let range = oldest_selection.display_range(&display_map).sorted();
7791
7792 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7793 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7794 let positions = start_x.min(end_x)..start_x.max(end_x);
7795
7796 selections.clear();
7797 let mut stack = Vec::new();
7798 for row in range.start.row().0..=range.end.row().0 {
7799 if let Some(selection) = self.selections.build_columnar_selection(
7800 &display_map,
7801 DisplayRow(row),
7802 &positions,
7803 oldest_selection.reversed,
7804 &text_layout_details,
7805 ) {
7806 stack.push(selection.id);
7807 selections.push(selection);
7808 }
7809 }
7810
7811 if above {
7812 stack.reverse();
7813 }
7814
7815 AddSelectionsState { above, stack }
7816 });
7817
7818 let last_added_selection = *state.stack.last().unwrap();
7819 let mut new_selections = Vec::new();
7820 if above == state.above {
7821 let end_row = if above {
7822 DisplayRow(0)
7823 } else {
7824 display_map.max_point().row()
7825 };
7826
7827 'outer: for selection in selections {
7828 if selection.id == last_added_selection {
7829 let range = selection.display_range(&display_map).sorted();
7830 debug_assert_eq!(range.start.row(), range.end.row());
7831 let mut row = range.start.row();
7832 let positions =
7833 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7834 px(start)..px(end)
7835 } else {
7836 let start_x =
7837 display_map.x_for_display_point(range.start, &text_layout_details);
7838 let end_x =
7839 display_map.x_for_display_point(range.end, &text_layout_details);
7840 start_x.min(end_x)..start_x.max(end_x)
7841 };
7842
7843 while row != end_row {
7844 if above {
7845 row.0 -= 1;
7846 } else {
7847 row.0 += 1;
7848 }
7849
7850 if let Some(new_selection) = self.selections.build_columnar_selection(
7851 &display_map,
7852 row,
7853 &positions,
7854 selection.reversed,
7855 &text_layout_details,
7856 ) {
7857 state.stack.push(new_selection.id);
7858 if above {
7859 new_selections.push(new_selection);
7860 new_selections.push(selection);
7861 } else {
7862 new_selections.push(selection);
7863 new_selections.push(new_selection);
7864 }
7865
7866 continue 'outer;
7867 }
7868 }
7869 }
7870
7871 new_selections.push(selection);
7872 }
7873 } else {
7874 new_selections = selections;
7875 new_selections.retain(|s| s.id != last_added_selection);
7876 state.stack.pop();
7877 }
7878
7879 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7880 s.select(new_selections);
7881 });
7882 if state.stack.len() > 1 {
7883 self.add_selections_state = Some(state);
7884 }
7885 }
7886
7887 pub fn select_next_match_internal(
7888 &mut self,
7889 display_map: &DisplaySnapshot,
7890 replace_newest: bool,
7891 autoscroll: Option<Autoscroll>,
7892 cx: &mut ViewContext<Self>,
7893 ) -> Result<()> {
7894 fn select_next_match_ranges(
7895 this: &mut Editor,
7896 range: Range<usize>,
7897 replace_newest: bool,
7898 auto_scroll: Option<Autoscroll>,
7899 cx: &mut ViewContext<Editor>,
7900 ) {
7901 this.unfold_ranges(&[range.clone()], false, true, cx);
7902 this.change_selections(auto_scroll, cx, |s| {
7903 if replace_newest {
7904 s.delete(s.newest_anchor().id);
7905 }
7906 s.insert_range(range.clone());
7907 });
7908 }
7909
7910 let buffer = &display_map.buffer_snapshot;
7911 let mut selections = self.selections.all::<usize>(cx);
7912 if let Some(mut select_next_state) = self.select_next_state.take() {
7913 let query = &select_next_state.query;
7914 if !select_next_state.done {
7915 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7916 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7917 let mut next_selected_range = None;
7918
7919 let bytes_after_last_selection =
7920 buffer.bytes_in_range(last_selection.end..buffer.len());
7921 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7922 let query_matches = query
7923 .stream_find_iter(bytes_after_last_selection)
7924 .map(|result| (last_selection.end, result))
7925 .chain(
7926 query
7927 .stream_find_iter(bytes_before_first_selection)
7928 .map(|result| (0, result)),
7929 );
7930
7931 for (start_offset, query_match) in query_matches {
7932 let query_match = query_match.unwrap(); // can only fail due to I/O
7933 let offset_range =
7934 start_offset + query_match.start()..start_offset + query_match.end();
7935 let display_range = offset_range.start.to_display_point(display_map)
7936 ..offset_range.end.to_display_point(display_map);
7937
7938 if !select_next_state.wordwise
7939 || (!movement::is_inside_word(display_map, display_range.start)
7940 && !movement::is_inside_word(display_map, display_range.end))
7941 {
7942 // TODO: This is n^2, because we might check all the selections
7943 if !selections
7944 .iter()
7945 .any(|selection| selection.range().overlaps(&offset_range))
7946 {
7947 next_selected_range = Some(offset_range);
7948 break;
7949 }
7950 }
7951 }
7952
7953 if let Some(next_selected_range) = next_selected_range {
7954 select_next_match_ranges(
7955 self,
7956 next_selected_range,
7957 replace_newest,
7958 autoscroll,
7959 cx,
7960 );
7961 } else {
7962 select_next_state.done = true;
7963 }
7964 }
7965
7966 self.select_next_state = Some(select_next_state);
7967 } else {
7968 let mut only_carets = true;
7969 let mut same_text_selected = true;
7970 let mut selected_text = None;
7971
7972 let mut selections_iter = selections.iter().peekable();
7973 while let Some(selection) = selections_iter.next() {
7974 if selection.start != selection.end {
7975 only_carets = false;
7976 }
7977
7978 if same_text_selected {
7979 if selected_text.is_none() {
7980 selected_text =
7981 Some(buffer.text_for_range(selection.range()).collect::<String>());
7982 }
7983
7984 if let Some(next_selection) = selections_iter.peek() {
7985 if next_selection.range().len() == selection.range().len() {
7986 let next_selected_text = buffer
7987 .text_for_range(next_selection.range())
7988 .collect::<String>();
7989 if Some(next_selected_text) != selected_text {
7990 same_text_selected = false;
7991 selected_text = None;
7992 }
7993 } else {
7994 same_text_selected = false;
7995 selected_text = None;
7996 }
7997 }
7998 }
7999 }
8000
8001 if only_carets {
8002 for selection in &mut selections {
8003 let word_range = movement::surrounding_word(
8004 display_map,
8005 selection.start.to_display_point(display_map),
8006 );
8007 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8008 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8009 selection.goal = SelectionGoal::None;
8010 selection.reversed = false;
8011 select_next_match_ranges(
8012 self,
8013 selection.start..selection.end,
8014 replace_newest,
8015 autoscroll,
8016 cx,
8017 );
8018 }
8019
8020 if selections.len() == 1 {
8021 let selection = selections
8022 .last()
8023 .expect("ensured that there's only one selection");
8024 let query = buffer
8025 .text_for_range(selection.start..selection.end)
8026 .collect::<String>();
8027 let is_empty = query.is_empty();
8028 let select_state = SelectNextState {
8029 query: AhoCorasick::new(&[query])?,
8030 wordwise: true,
8031 done: is_empty,
8032 };
8033 self.select_next_state = Some(select_state);
8034 } else {
8035 self.select_next_state = None;
8036 }
8037 } else if let Some(selected_text) = selected_text {
8038 self.select_next_state = Some(SelectNextState {
8039 query: AhoCorasick::new(&[selected_text])?,
8040 wordwise: false,
8041 done: false,
8042 });
8043 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8044 }
8045 }
8046 Ok(())
8047 }
8048
8049 pub fn select_all_matches(
8050 &mut self,
8051 _action: &SelectAllMatches,
8052 cx: &mut ViewContext<Self>,
8053 ) -> Result<()> {
8054 self.push_to_selection_history();
8055 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8056
8057 self.select_next_match_internal(&display_map, false, None, cx)?;
8058 let Some(select_next_state) = self.select_next_state.as_mut() else {
8059 return Ok(());
8060 };
8061 if select_next_state.done {
8062 return Ok(());
8063 }
8064
8065 let mut new_selections = self.selections.all::<usize>(cx);
8066
8067 let buffer = &display_map.buffer_snapshot;
8068 let query_matches = select_next_state
8069 .query
8070 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8071
8072 for query_match in query_matches {
8073 let query_match = query_match.unwrap(); // can only fail due to I/O
8074 let offset_range = query_match.start()..query_match.end();
8075 let display_range = offset_range.start.to_display_point(&display_map)
8076 ..offset_range.end.to_display_point(&display_map);
8077
8078 if !select_next_state.wordwise
8079 || (!movement::is_inside_word(&display_map, display_range.start)
8080 && !movement::is_inside_word(&display_map, display_range.end))
8081 {
8082 self.selections.change_with(cx, |selections| {
8083 new_selections.push(Selection {
8084 id: selections.new_selection_id(),
8085 start: offset_range.start,
8086 end: offset_range.end,
8087 reversed: false,
8088 goal: SelectionGoal::None,
8089 });
8090 });
8091 }
8092 }
8093
8094 new_selections.sort_by_key(|selection| selection.start);
8095 let mut ix = 0;
8096 while ix + 1 < new_selections.len() {
8097 let current_selection = &new_selections[ix];
8098 let next_selection = &new_selections[ix + 1];
8099 if current_selection.range().overlaps(&next_selection.range()) {
8100 if current_selection.id < next_selection.id {
8101 new_selections.remove(ix + 1);
8102 } else {
8103 new_selections.remove(ix);
8104 }
8105 } else {
8106 ix += 1;
8107 }
8108 }
8109
8110 select_next_state.done = true;
8111 self.unfold_ranges(
8112 &new_selections
8113 .iter()
8114 .map(|selection| selection.range())
8115 .collect::<Vec<_>>(),
8116 false,
8117 false,
8118 cx,
8119 );
8120 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8121 selections.select(new_selections)
8122 });
8123
8124 Ok(())
8125 }
8126
8127 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8128 self.push_to_selection_history();
8129 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8130 self.select_next_match_internal(
8131 &display_map,
8132 action.replace_newest,
8133 Some(Autoscroll::newest()),
8134 cx,
8135 )?;
8136 Ok(())
8137 }
8138
8139 pub fn select_previous(
8140 &mut self,
8141 action: &SelectPrevious,
8142 cx: &mut ViewContext<Self>,
8143 ) -> Result<()> {
8144 self.push_to_selection_history();
8145 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8146 let buffer = &display_map.buffer_snapshot;
8147 let mut selections = self.selections.all::<usize>(cx);
8148 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8149 let query = &select_prev_state.query;
8150 if !select_prev_state.done {
8151 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8152 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8153 let mut next_selected_range = None;
8154 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8155 let bytes_before_last_selection =
8156 buffer.reversed_bytes_in_range(0..last_selection.start);
8157 let bytes_after_first_selection =
8158 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8159 let query_matches = query
8160 .stream_find_iter(bytes_before_last_selection)
8161 .map(|result| (last_selection.start, result))
8162 .chain(
8163 query
8164 .stream_find_iter(bytes_after_first_selection)
8165 .map(|result| (buffer.len(), result)),
8166 );
8167 for (end_offset, query_match) in query_matches {
8168 let query_match = query_match.unwrap(); // can only fail due to I/O
8169 let offset_range =
8170 end_offset - query_match.end()..end_offset - query_match.start();
8171 let display_range = offset_range.start.to_display_point(&display_map)
8172 ..offset_range.end.to_display_point(&display_map);
8173
8174 if !select_prev_state.wordwise
8175 || (!movement::is_inside_word(&display_map, display_range.start)
8176 && !movement::is_inside_word(&display_map, display_range.end))
8177 {
8178 next_selected_range = Some(offset_range);
8179 break;
8180 }
8181 }
8182
8183 if let Some(next_selected_range) = next_selected_range {
8184 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8185 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8186 if action.replace_newest {
8187 s.delete(s.newest_anchor().id);
8188 }
8189 s.insert_range(next_selected_range);
8190 });
8191 } else {
8192 select_prev_state.done = true;
8193 }
8194 }
8195
8196 self.select_prev_state = Some(select_prev_state);
8197 } else {
8198 let mut only_carets = true;
8199 let mut same_text_selected = true;
8200 let mut selected_text = None;
8201
8202 let mut selections_iter = selections.iter().peekable();
8203 while let Some(selection) = selections_iter.next() {
8204 if selection.start != selection.end {
8205 only_carets = false;
8206 }
8207
8208 if same_text_selected {
8209 if selected_text.is_none() {
8210 selected_text =
8211 Some(buffer.text_for_range(selection.range()).collect::<String>());
8212 }
8213
8214 if let Some(next_selection) = selections_iter.peek() {
8215 if next_selection.range().len() == selection.range().len() {
8216 let next_selected_text = buffer
8217 .text_for_range(next_selection.range())
8218 .collect::<String>();
8219 if Some(next_selected_text) != selected_text {
8220 same_text_selected = false;
8221 selected_text = None;
8222 }
8223 } else {
8224 same_text_selected = false;
8225 selected_text = None;
8226 }
8227 }
8228 }
8229 }
8230
8231 if only_carets {
8232 for selection in &mut selections {
8233 let word_range = movement::surrounding_word(
8234 &display_map,
8235 selection.start.to_display_point(&display_map),
8236 );
8237 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8238 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8239 selection.goal = SelectionGoal::None;
8240 selection.reversed = false;
8241 }
8242 if selections.len() == 1 {
8243 let selection = selections
8244 .last()
8245 .expect("ensured that there's only one selection");
8246 let query = buffer
8247 .text_for_range(selection.start..selection.end)
8248 .collect::<String>();
8249 let is_empty = query.is_empty();
8250 let select_state = SelectNextState {
8251 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8252 wordwise: true,
8253 done: is_empty,
8254 };
8255 self.select_prev_state = Some(select_state);
8256 } else {
8257 self.select_prev_state = None;
8258 }
8259
8260 self.unfold_ranges(
8261 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8262 false,
8263 true,
8264 cx,
8265 );
8266 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8267 s.select(selections);
8268 });
8269 } else if let Some(selected_text) = selected_text {
8270 self.select_prev_state = Some(SelectNextState {
8271 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8272 wordwise: false,
8273 done: false,
8274 });
8275 self.select_previous(action, cx)?;
8276 }
8277 }
8278 Ok(())
8279 }
8280
8281 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8282 if self.read_only(cx) {
8283 return;
8284 }
8285 let text_layout_details = &self.text_layout_details(cx);
8286 self.transact(cx, |this, cx| {
8287 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8288 let mut edits = Vec::new();
8289 let mut selection_edit_ranges = Vec::new();
8290 let mut last_toggled_row = None;
8291 let snapshot = this.buffer.read(cx).read(cx);
8292 let empty_str: Arc<str> = Arc::default();
8293 let mut suffixes_inserted = Vec::new();
8294 let ignore_indent = action.ignore_indent;
8295
8296 fn comment_prefix_range(
8297 snapshot: &MultiBufferSnapshot,
8298 row: MultiBufferRow,
8299 comment_prefix: &str,
8300 comment_prefix_whitespace: &str,
8301 ignore_indent: bool,
8302 ) -> Range<Point> {
8303 let indent_size = if ignore_indent {
8304 0
8305 } else {
8306 snapshot.indent_size_for_line(row).len
8307 };
8308
8309 let start = Point::new(row.0, indent_size);
8310
8311 let mut line_bytes = snapshot
8312 .bytes_in_range(start..snapshot.max_point())
8313 .flatten()
8314 .copied();
8315
8316 // If this line currently begins with the line comment prefix, then record
8317 // the range containing the prefix.
8318 if line_bytes
8319 .by_ref()
8320 .take(comment_prefix.len())
8321 .eq(comment_prefix.bytes())
8322 {
8323 // Include any whitespace that matches the comment prefix.
8324 let matching_whitespace_len = line_bytes
8325 .zip(comment_prefix_whitespace.bytes())
8326 .take_while(|(a, b)| a == b)
8327 .count() as u32;
8328 let end = Point::new(
8329 start.row,
8330 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8331 );
8332 start..end
8333 } else {
8334 start..start
8335 }
8336 }
8337
8338 fn comment_suffix_range(
8339 snapshot: &MultiBufferSnapshot,
8340 row: MultiBufferRow,
8341 comment_suffix: &str,
8342 comment_suffix_has_leading_space: bool,
8343 ) -> Range<Point> {
8344 let end = Point::new(row.0, snapshot.line_len(row));
8345 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8346
8347 let mut line_end_bytes = snapshot
8348 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8349 .flatten()
8350 .copied();
8351
8352 let leading_space_len = if suffix_start_column > 0
8353 && line_end_bytes.next() == Some(b' ')
8354 && comment_suffix_has_leading_space
8355 {
8356 1
8357 } else {
8358 0
8359 };
8360
8361 // If this line currently begins with the line comment prefix, then record
8362 // the range containing the prefix.
8363 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8364 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8365 start..end
8366 } else {
8367 end..end
8368 }
8369 }
8370
8371 // TODO: Handle selections that cross excerpts
8372 for selection in &mut selections {
8373 let start_column = snapshot
8374 .indent_size_for_line(MultiBufferRow(selection.start.row))
8375 .len;
8376 let language = if let Some(language) =
8377 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8378 {
8379 language
8380 } else {
8381 continue;
8382 };
8383
8384 selection_edit_ranges.clear();
8385
8386 // If multiple selections contain a given row, avoid processing that
8387 // row more than once.
8388 let mut start_row = MultiBufferRow(selection.start.row);
8389 if last_toggled_row == Some(start_row) {
8390 start_row = start_row.next_row();
8391 }
8392 let end_row =
8393 if selection.end.row > selection.start.row && selection.end.column == 0 {
8394 MultiBufferRow(selection.end.row - 1)
8395 } else {
8396 MultiBufferRow(selection.end.row)
8397 };
8398 last_toggled_row = Some(end_row);
8399
8400 if start_row > end_row {
8401 continue;
8402 }
8403
8404 // If the language has line comments, toggle those.
8405 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8406
8407 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8408 if ignore_indent {
8409 full_comment_prefixes = full_comment_prefixes
8410 .into_iter()
8411 .map(|s| Arc::from(s.trim_end()))
8412 .collect();
8413 }
8414
8415 if !full_comment_prefixes.is_empty() {
8416 let first_prefix = full_comment_prefixes
8417 .first()
8418 .expect("prefixes is non-empty");
8419 let prefix_trimmed_lengths = full_comment_prefixes
8420 .iter()
8421 .map(|p| p.trim_end_matches(' ').len())
8422 .collect::<SmallVec<[usize; 4]>>();
8423
8424 let mut all_selection_lines_are_comments = true;
8425
8426 for row in start_row.0..=end_row.0 {
8427 let row = MultiBufferRow(row);
8428 if start_row < end_row && snapshot.is_line_blank(row) {
8429 continue;
8430 }
8431
8432 let prefix_range = full_comment_prefixes
8433 .iter()
8434 .zip(prefix_trimmed_lengths.iter().copied())
8435 .map(|(prefix, trimmed_prefix_len)| {
8436 comment_prefix_range(
8437 snapshot.deref(),
8438 row,
8439 &prefix[..trimmed_prefix_len],
8440 &prefix[trimmed_prefix_len..],
8441 ignore_indent,
8442 )
8443 })
8444 .max_by_key(|range| range.end.column - range.start.column)
8445 .expect("prefixes is non-empty");
8446
8447 if prefix_range.is_empty() {
8448 all_selection_lines_are_comments = false;
8449 }
8450
8451 selection_edit_ranges.push(prefix_range);
8452 }
8453
8454 if all_selection_lines_are_comments {
8455 edits.extend(
8456 selection_edit_ranges
8457 .iter()
8458 .cloned()
8459 .map(|range| (range, empty_str.clone())),
8460 );
8461 } else {
8462 let min_column = selection_edit_ranges
8463 .iter()
8464 .map(|range| range.start.column)
8465 .min()
8466 .unwrap_or(0);
8467 edits.extend(selection_edit_ranges.iter().map(|range| {
8468 let position = Point::new(range.start.row, min_column);
8469 (position..position, first_prefix.clone())
8470 }));
8471 }
8472 } else if let Some((full_comment_prefix, comment_suffix)) =
8473 language.block_comment_delimiters()
8474 {
8475 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8476 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8477 let prefix_range = comment_prefix_range(
8478 snapshot.deref(),
8479 start_row,
8480 comment_prefix,
8481 comment_prefix_whitespace,
8482 ignore_indent,
8483 );
8484 let suffix_range = comment_suffix_range(
8485 snapshot.deref(),
8486 end_row,
8487 comment_suffix.trim_start_matches(' '),
8488 comment_suffix.starts_with(' '),
8489 );
8490
8491 if prefix_range.is_empty() || suffix_range.is_empty() {
8492 edits.push((
8493 prefix_range.start..prefix_range.start,
8494 full_comment_prefix.clone(),
8495 ));
8496 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8497 suffixes_inserted.push((end_row, comment_suffix.len()));
8498 } else {
8499 edits.push((prefix_range, empty_str.clone()));
8500 edits.push((suffix_range, empty_str.clone()));
8501 }
8502 } else {
8503 continue;
8504 }
8505 }
8506
8507 drop(snapshot);
8508 this.buffer.update(cx, |buffer, cx| {
8509 buffer.edit(edits, None, cx);
8510 });
8511
8512 // Adjust selections so that they end before any comment suffixes that
8513 // were inserted.
8514 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8515 let mut selections = this.selections.all::<Point>(cx);
8516 let snapshot = this.buffer.read(cx).read(cx);
8517 for selection in &mut selections {
8518 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8519 match row.cmp(&MultiBufferRow(selection.end.row)) {
8520 Ordering::Less => {
8521 suffixes_inserted.next();
8522 continue;
8523 }
8524 Ordering::Greater => break,
8525 Ordering::Equal => {
8526 if selection.end.column == snapshot.line_len(row) {
8527 if selection.is_empty() {
8528 selection.start.column -= suffix_len as u32;
8529 }
8530 selection.end.column -= suffix_len as u32;
8531 }
8532 break;
8533 }
8534 }
8535 }
8536 }
8537
8538 drop(snapshot);
8539 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8540
8541 let selections = this.selections.all::<Point>(cx);
8542 let selections_on_single_row = selections.windows(2).all(|selections| {
8543 selections[0].start.row == selections[1].start.row
8544 && selections[0].end.row == selections[1].end.row
8545 && selections[0].start.row == selections[0].end.row
8546 });
8547 let selections_selecting = selections
8548 .iter()
8549 .any(|selection| selection.start != selection.end);
8550 let advance_downwards = action.advance_downwards
8551 && selections_on_single_row
8552 && !selections_selecting
8553 && !matches!(this.mode, EditorMode::SingleLine { .. });
8554
8555 if advance_downwards {
8556 let snapshot = this.buffer.read(cx).snapshot(cx);
8557
8558 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8559 s.move_cursors_with(|display_snapshot, display_point, _| {
8560 let mut point = display_point.to_point(display_snapshot);
8561 point.row += 1;
8562 point = snapshot.clip_point(point, Bias::Left);
8563 let display_point = point.to_display_point(display_snapshot);
8564 let goal = SelectionGoal::HorizontalPosition(
8565 display_snapshot
8566 .x_for_display_point(display_point, text_layout_details)
8567 .into(),
8568 );
8569 (display_point, goal)
8570 })
8571 });
8572 }
8573 });
8574 }
8575
8576 pub fn select_enclosing_symbol(
8577 &mut self,
8578 _: &SelectEnclosingSymbol,
8579 cx: &mut ViewContext<Self>,
8580 ) {
8581 let buffer = self.buffer.read(cx).snapshot(cx);
8582 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8583
8584 fn update_selection(
8585 selection: &Selection<usize>,
8586 buffer_snap: &MultiBufferSnapshot,
8587 ) -> Option<Selection<usize>> {
8588 let cursor = selection.head();
8589 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8590 for symbol in symbols.iter().rev() {
8591 let start = symbol.range.start.to_offset(buffer_snap);
8592 let end = symbol.range.end.to_offset(buffer_snap);
8593 let new_range = start..end;
8594 if start < selection.start || end > selection.end {
8595 return Some(Selection {
8596 id: selection.id,
8597 start: new_range.start,
8598 end: new_range.end,
8599 goal: SelectionGoal::None,
8600 reversed: selection.reversed,
8601 });
8602 }
8603 }
8604 None
8605 }
8606
8607 let mut selected_larger_symbol = false;
8608 let new_selections = old_selections
8609 .iter()
8610 .map(|selection| match update_selection(selection, &buffer) {
8611 Some(new_selection) => {
8612 if new_selection.range() != selection.range() {
8613 selected_larger_symbol = true;
8614 }
8615 new_selection
8616 }
8617 None => selection.clone(),
8618 })
8619 .collect::<Vec<_>>();
8620
8621 if selected_larger_symbol {
8622 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8623 s.select(new_selections);
8624 });
8625 }
8626 }
8627
8628 pub fn select_larger_syntax_node(
8629 &mut self,
8630 _: &SelectLargerSyntaxNode,
8631 cx: &mut ViewContext<Self>,
8632 ) {
8633 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8634 let buffer = self.buffer.read(cx).snapshot(cx);
8635 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8636
8637 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8638 let mut selected_larger_node = false;
8639 let new_selections = old_selections
8640 .iter()
8641 .map(|selection| {
8642 let old_range = selection.start..selection.end;
8643 let mut new_range = old_range.clone();
8644 while let Some(containing_range) =
8645 buffer.range_for_syntax_ancestor(new_range.clone())
8646 {
8647 new_range = containing_range;
8648 if !display_map.intersects_fold(new_range.start)
8649 && !display_map.intersects_fold(new_range.end)
8650 {
8651 break;
8652 }
8653 }
8654
8655 selected_larger_node |= new_range != old_range;
8656 Selection {
8657 id: selection.id,
8658 start: new_range.start,
8659 end: new_range.end,
8660 goal: SelectionGoal::None,
8661 reversed: selection.reversed,
8662 }
8663 })
8664 .collect::<Vec<_>>();
8665
8666 if selected_larger_node {
8667 stack.push(old_selections);
8668 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8669 s.select(new_selections);
8670 });
8671 }
8672 self.select_larger_syntax_node_stack = stack;
8673 }
8674
8675 pub fn select_smaller_syntax_node(
8676 &mut self,
8677 _: &SelectSmallerSyntaxNode,
8678 cx: &mut ViewContext<Self>,
8679 ) {
8680 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8681 if let Some(selections) = stack.pop() {
8682 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8683 s.select(selections.to_vec());
8684 });
8685 }
8686 self.select_larger_syntax_node_stack = stack;
8687 }
8688
8689 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8690 if !EditorSettings::get_global(cx).gutter.runnables {
8691 self.clear_tasks();
8692 return Task::ready(());
8693 }
8694 let project = self.project.as_ref().map(Model::downgrade);
8695 cx.spawn(|this, mut cx| async move {
8696 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
8697 let Some(project) = project.and_then(|p| p.upgrade()) else {
8698 return;
8699 };
8700 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8701 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8702 }) else {
8703 return;
8704 };
8705
8706 let hide_runnables = project
8707 .update(&mut cx, |project, cx| {
8708 // Do not display any test indicators in non-dev server remote projects.
8709 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8710 })
8711 .unwrap_or(true);
8712 if hide_runnables {
8713 return;
8714 }
8715 let new_rows =
8716 cx.background_executor()
8717 .spawn({
8718 let snapshot = display_snapshot.clone();
8719 async move {
8720 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8721 }
8722 })
8723 .await;
8724 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8725
8726 this.update(&mut cx, |this, _| {
8727 this.clear_tasks();
8728 for (key, value) in rows {
8729 this.insert_tasks(key, value);
8730 }
8731 })
8732 .ok();
8733 })
8734 }
8735 fn fetch_runnable_ranges(
8736 snapshot: &DisplaySnapshot,
8737 range: Range<Anchor>,
8738 ) -> Vec<language::RunnableRange> {
8739 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8740 }
8741
8742 fn runnable_rows(
8743 project: Model<Project>,
8744 snapshot: DisplaySnapshot,
8745 runnable_ranges: Vec<RunnableRange>,
8746 mut cx: AsyncWindowContext,
8747 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8748 runnable_ranges
8749 .into_iter()
8750 .filter_map(|mut runnable| {
8751 let tasks = cx
8752 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8753 .ok()?;
8754 if tasks.is_empty() {
8755 return None;
8756 }
8757
8758 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8759
8760 let row = snapshot
8761 .buffer_snapshot
8762 .buffer_line_for_row(MultiBufferRow(point.row))?
8763 .1
8764 .start
8765 .row;
8766
8767 let context_range =
8768 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8769 Some((
8770 (runnable.buffer_id, row),
8771 RunnableTasks {
8772 templates: tasks,
8773 offset: MultiBufferOffset(runnable.run_range.start),
8774 context_range,
8775 column: point.column,
8776 extra_variables: runnable.extra_captures,
8777 },
8778 ))
8779 })
8780 .collect()
8781 }
8782
8783 fn templates_with_tags(
8784 project: &Model<Project>,
8785 runnable: &mut Runnable,
8786 cx: &WindowContext<'_>,
8787 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8788 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8789 let (worktree_id, file) = project
8790 .buffer_for_id(runnable.buffer, cx)
8791 .and_then(|buffer| buffer.read(cx).file())
8792 .map(|file| (file.worktree_id(cx), file.clone()))
8793 .unzip();
8794
8795 (
8796 project.task_store().read(cx).task_inventory().cloned(),
8797 worktree_id,
8798 file,
8799 )
8800 });
8801
8802 let tags = mem::take(&mut runnable.tags);
8803 let mut tags: Vec<_> = tags
8804 .into_iter()
8805 .flat_map(|tag| {
8806 let tag = tag.0.clone();
8807 inventory
8808 .as_ref()
8809 .into_iter()
8810 .flat_map(|inventory| {
8811 inventory.read(cx).list_tasks(
8812 file.clone(),
8813 Some(runnable.language.clone()),
8814 worktree_id,
8815 cx,
8816 )
8817 })
8818 .filter(move |(_, template)| {
8819 template.tags.iter().any(|source_tag| source_tag == &tag)
8820 })
8821 })
8822 .sorted_by_key(|(kind, _)| kind.to_owned())
8823 .collect();
8824 if let Some((leading_tag_source, _)) = tags.first() {
8825 // Strongest source wins; if we have worktree tag binding, prefer that to
8826 // global and language bindings;
8827 // if we have a global binding, prefer that to language binding.
8828 let first_mismatch = tags
8829 .iter()
8830 .position(|(tag_source, _)| tag_source != leading_tag_source);
8831 if let Some(index) = first_mismatch {
8832 tags.truncate(index);
8833 }
8834 }
8835
8836 tags
8837 }
8838
8839 pub fn move_to_enclosing_bracket(
8840 &mut self,
8841 _: &MoveToEnclosingBracket,
8842 cx: &mut ViewContext<Self>,
8843 ) {
8844 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8845 s.move_offsets_with(|snapshot, selection| {
8846 let Some(enclosing_bracket_ranges) =
8847 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8848 else {
8849 return;
8850 };
8851
8852 let mut best_length = usize::MAX;
8853 let mut best_inside = false;
8854 let mut best_in_bracket_range = false;
8855 let mut best_destination = None;
8856 for (open, close) in enclosing_bracket_ranges {
8857 let close = close.to_inclusive();
8858 let length = close.end() - open.start;
8859 let inside = selection.start >= open.end && selection.end <= *close.start();
8860 let in_bracket_range = open.to_inclusive().contains(&selection.head())
8861 || close.contains(&selection.head());
8862
8863 // If best is next to a bracket and current isn't, skip
8864 if !in_bracket_range && best_in_bracket_range {
8865 continue;
8866 }
8867
8868 // Prefer smaller lengths unless best is inside and current isn't
8869 if length > best_length && (best_inside || !inside) {
8870 continue;
8871 }
8872
8873 best_length = length;
8874 best_inside = inside;
8875 best_in_bracket_range = in_bracket_range;
8876 best_destination = Some(
8877 if close.contains(&selection.start) && close.contains(&selection.end) {
8878 if inside {
8879 open.end
8880 } else {
8881 open.start
8882 }
8883 } else if inside {
8884 *close.start()
8885 } else {
8886 *close.end()
8887 },
8888 );
8889 }
8890
8891 if let Some(destination) = best_destination {
8892 selection.collapse_to(destination, SelectionGoal::None);
8893 }
8894 })
8895 });
8896 }
8897
8898 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
8899 self.end_selection(cx);
8900 self.selection_history.mode = SelectionHistoryMode::Undoing;
8901 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
8902 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8903 self.select_next_state = entry.select_next_state;
8904 self.select_prev_state = entry.select_prev_state;
8905 self.add_selections_state = entry.add_selections_state;
8906 self.request_autoscroll(Autoscroll::newest(), cx);
8907 }
8908 self.selection_history.mode = SelectionHistoryMode::Normal;
8909 }
8910
8911 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
8912 self.end_selection(cx);
8913 self.selection_history.mode = SelectionHistoryMode::Redoing;
8914 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
8915 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8916 self.select_next_state = entry.select_next_state;
8917 self.select_prev_state = entry.select_prev_state;
8918 self.add_selections_state = entry.add_selections_state;
8919 self.request_autoscroll(Autoscroll::newest(), cx);
8920 }
8921 self.selection_history.mode = SelectionHistoryMode::Normal;
8922 }
8923
8924 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
8925 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
8926 }
8927
8928 pub fn expand_excerpts_down(
8929 &mut self,
8930 action: &ExpandExcerptsDown,
8931 cx: &mut ViewContext<Self>,
8932 ) {
8933 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
8934 }
8935
8936 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
8937 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
8938 }
8939
8940 pub fn expand_excerpts_for_direction(
8941 &mut self,
8942 lines: u32,
8943 direction: ExpandExcerptDirection,
8944 cx: &mut ViewContext<Self>,
8945 ) {
8946 let selections = self.selections.disjoint_anchors();
8947
8948 let lines = if lines == 0 {
8949 EditorSettings::get_global(cx).expand_excerpt_lines
8950 } else {
8951 lines
8952 };
8953
8954 self.buffer.update(cx, |buffer, cx| {
8955 buffer.expand_excerpts(
8956 selections
8957 .iter()
8958 .map(|selection| selection.head().excerpt_id)
8959 .dedup(),
8960 lines,
8961 direction,
8962 cx,
8963 )
8964 })
8965 }
8966
8967 pub fn expand_excerpt(
8968 &mut self,
8969 excerpt: ExcerptId,
8970 direction: ExpandExcerptDirection,
8971 cx: &mut ViewContext<Self>,
8972 ) {
8973 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
8974 self.buffer.update(cx, |buffer, cx| {
8975 buffer.expand_excerpts([excerpt], lines, direction, cx)
8976 })
8977 }
8978
8979 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8980 self.go_to_diagnostic_impl(Direction::Next, cx)
8981 }
8982
8983 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8984 self.go_to_diagnostic_impl(Direction::Prev, cx)
8985 }
8986
8987 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8988 let buffer = self.buffer.read(cx).snapshot(cx);
8989 let selection = self.selections.newest::<usize>(cx);
8990
8991 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8992 if direction == Direction::Next {
8993 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8994 let (group_id, jump_to) = popover.activation_info();
8995 if self.activate_diagnostics(group_id, cx) {
8996 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8997 let mut new_selection = s.newest_anchor().clone();
8998 new_selection.collapse_to(jump_to, SelectionGoal::None);
8999 s.select_anchors(vec![new_selection.clone()]);
9000 });
9001 }
9002 return;
9003 }
9004 }
9005
9006 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9007 active_diagnostics
9008 .primary_range
9009 .to_offset(&buffer)
9010 .to_inclusive()
9011 });
9012 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9013 if active_primary_range.contains(&selection.head()) {
9014 *active_primary_range.start()
9015 } else {
9016 selection.head()
9017 }
9018 } else {
9019 selection.head()
9020 };
9021 let snapshot = self.snapshot(cx);
9022 loop {
9023 let diagnostics = if direction == Direction::Prev {
9024 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9025 } else {
9026 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9027 }
9028 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9029 let group = diagnostics
9030 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9031 // be sorted in a stable way
9032 // skip until we are at current active diagnostic, if it exists
9033 .skip_while(|entry| {
9034 (match direction {
9035 Direction::Prev => entry.range.start >= search_start,
9036 Direction::Next => entry.range.start <= search_start,
9037 }) && self
9038 .active_diagnostics
9039 .as_ref()
9040 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9041 })
9042 .find_map(|entry| {
9043 if entry.diagnostic.is_primary
9044 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9045 && !entry.range.is_empty()
9046 // if we match with the active diagnostic, skip it
9047 && Some(entry.diagnostic.group_id)
9048 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9049 {
9050 Some((entry.range, entry.diagnostic.group_id))
9051 } else {
9052 None
9053 }
9054 });
9055
9056 if let Some((primary_range, group_id)) = group {
9057 if self.activate_diagnostics(group_id, cx) {
9058 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9059 s.select(vec![Selection {
9060 id: selection.id,
9061 start: primary_range.start,
9062 end: primary_range.start,
9063 reversed: false,
9064 goal: SelectionGoal::None,
9065 }]);
9066 });
9067 }
9068 break;
9069 } else {
9070 // Cycle around to the start of the buffer, potentially moving back to the start of
9071 // the currently active diagnostic.
9072 active_primary_range.take();
9073 if direction == Direction::Prev {
9074 if search_start == buffer.len() {
9075 break;
9076 } else {
9077 search_start = buffer.len();
9078 }
9079 } else if search_start == 0 {
9080 break;
9081 } else {
9082 search_start = 0;
9083 }
9084 }
9085 }
9086 }
9087
9088 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9089 let snapshot = self.snapshot(cx);
9090 let selection = self.selections.newest::<Point>(cx);
9091 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9092 }
9093
9094 fn go_to_hunk_after_position(
9095 &mut self,
9096 snapshot: &EditorSnapshot,
9097 position: Point,
9098 cx: &mut ViewContext<'_, Editor>,
9099 ) -> Option<MultiBufferDiffHunk> {
9100 for (ix, position) in [position, Point::zero()].into_iter().enumerate() {
9101 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9102 snapshot,
9103 position,
9104 ix > 0,
9105 snapshot.diff_map.diff_hunks_in_range(
9106 position + Point::new(1, 0)..snapshot.buffer_snapshot.max_point(),
9107 &snapshot.buffer_snapshot,
9108 ),
9109 cx,
9110 ) {
9111 return Some(hunk);
9112 }
9113 }
9114 None
9115 }
9116
9117 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9118 let snapshot = self.snapshot(cx);
9119 let selection = self.selections.newest::<Point>(cx);
9120 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9121 }
9122
9123 fn go_to_hunk_before_position(
9124 &mut self,
9125 snapshot: &EditorSnapshot,
9126 position: Point,
9127 cx: &mut ViewContext<'_, Editor>,
9128 ) -> Option<MultiBufferDiffHunk> {
9129 for (ix, position) in [position, snapshot.buffer_snapshot.max_point()]
9130 .into_iter()
9131 .enumerate()
9132 {
9133 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9134 snapshot,
9135 position,
9136 ix > 0,
9137 snapshot
9138 .diff_map
9139 .diff_hunks_in_range_rev(Point::zero()..position, &snapshot.buffer_snapshot),
9140 cx,
9141 ) {
9142 return Some(hunk);
9143 }
9144 }
9145 None
9146 }
9147
9148 fn go_to_next_hunk_in_direction(
9149 &mut self,
9150 snapshot: &DisplaySnapshot,
9151 initial_point: Point,
9152 is_wrapped: bool,
9153 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9154 cx: &mut ViewContext<Editor>,
9155 ) -> Option<MultiBufferDiffHunk> {
9156 let display_point = initial_point.to_display_point(snapshot);
9157 let mut hunks = hunks
9158 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9159 .filter(|(display_hunk, _)| {
9160 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9161 })
9162 .dedup();
9163
9164 if let Some((display_hunk, hunk)) = hunks.next() {
9165 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9166 let row = display_hunk.start_display_row();
9167 let point = DisplayPoint::new(row, 0);
9168 s.select_display_ranges([point..point]);
9169 });
9170
9171 Some(hunk)
9172 } else {
9173 None
9174 }
9175 }
9176
9177 pub fn go_to_definition(
9178 &mut self,
9179 _: &GoToDefinition,
9180 cx: &mut ViewContext<Self>,
9181 ) -> Task<Result<Navigated>> {
9182 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9183 cx.spawn(|editor, mut cx| async move {
9184 if definition.await? == Navigated::Yes {
9185 return Ok(Navigated::Yes);
9186 }
9187 match editor.update(&mut cx, |editor, cx| {
9188 editor.find_all_references(&FindAllReferences, cx)
9189 })? {
9190 Some(references) => references.await,
9191 None => Ok(Navigated::No),
9192 }
9193 })
9194 }
9195
9196 pub fn go_to_declaration(
9197 &mut self,
9198 _: &GoToDeclaration,
9199 cx: &mut ViewContext<Self>,
9200 ) -> Task<Result<Navigated>> {
9201 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9202 }
9203
9204 pub fn go_to_declaration_split(
9205 &mut self,
9206 _: &GoToDeclaration,
9207 cx: &mut ViewContext<Self>,
9208 ) -> Task<Result<Navigated>> {
9209 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9210 }
9211
9212 pub fn go_to_implementation(
9213 &mut self,
9214 _: &GoToImplementation,
9215 cx: &mut ViewContext<Self>,
9216 ) -> Task<Result<Navigated>> {
9217 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9218 }
9219
9220 pub fn go_to_implementation_split(
9221 &mut self,
9222 _: &GoToImplementationSplit,
9223 cx: &mut ViewContext<Self>,
9224 ) -> Task<Result<Navigated>> {
9225 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9226 }
9227
9228 pub fn go_to_type_definition(
9229 &mut self,
9230 _: &GoToTypeDefinition,
9231 cx: &mut ViewContext<Self>,
9232 ) -> Task<Result<Navigated>> {
9233 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9234 }
9235
9236 pub fn go_to_definition_split(
9237 &mut self,
9238 _: &GoToDefinitionSplit,
9239 cx: &mut ViewContext<Self>,
9240 ) -> Task<Result<Navigated>> {
9241 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9242 }
9243
9244 pub fn go_to_type_definition_split(
9245 &mut self,
9246 _: &GoToTypeDefinitionSplit,
9247 cx: &mut ViewContext<Self>,
9248 ) -> Task<Result<Navigated>> {
9249 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9250 }
9251
9252 fn go_to_definition_of_kind(
9253 &mut self,
9254 kind: GotoDefinitionKind,
9255 split: bool,
9256 cx: &mut ViewContext<Self>,
9257 ) -> Task<Result<Navigated>> {
9258 let Some(provider) = self.semantics_provider.clone() else {
9259 return Task::ready(Ok(Navigated::No));
9260 };
9261 let head = self.selections.newest::<usize>(cx).head();
9262 let buffer = self.buffer.read(cx);
9263 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9264 text_anchor
9265 } else {
9266 return Task::ready(Ok(Navigated::No));
9267 };
9268
9269 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9270 return Task::ready(Ok(Navigated::No));
9271 };
9272
9273 cx.spawn(|editor, mut cx| async move {
9274 let definitions = definitions.await?;
9275 let navigated = editor
9276 .update(&mut cx, |editor, cx| {
9277 editor.navigate_to_hover_links(
9278 Some(kind),
9279 definitions
9280 .into_iter()
9281 .filter(|location| {
9282 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9283 })
9284 .map(HoverLink::Text)
9285 .collect::<Vec<_>>(),
9286 split,
9287 cx,
9288 )
9289 })?
9290 .await?;
9291 anyhow::Ok(navigated)
9292 })
9293 }
9294
9295 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9296 let selection = self.selections.newest_anchor();
9297 let head = selection.head();
9298 let tail = selection.tail();
9299
9300 let Some((buffer, start_position)) =
9301 self.buffer.read(cx).text_anchor_for_position(head, cx)
9302 else {
9303 return;
9304 };
9305
9306 let end_position = if head != tail {
9307 let Some((_, pos)) = self.buffer.read(cx).text_anchor_for_position(tail, cx) else {
9308 return;
9309 };
9310 Some(pos)
9311 } else {
9312 None
9313 };
9314
9315 let url_finder = cx.spawn(|editor, mut cx| async move {
9316 let url = if let Some(end_pos) = end_position {
9317 find_url_from_range(&buffer, start_position..end_pos, cx.clone())
9318 } else {
9319 find_url(&buffer, start_position, cx.clone()).map(|(_, url)| url)
9320 };
9321
9322 if let Some(url) = url {
9323 editor.update(&mut cx, |_, cx| {
9324 cx.open_url(&url);
9325 })
9326 } else {
9327 Ok(())
9328 }
9329 });
9330
9331 url_finder.detach();
9332 }
9333
9334 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9335 let Some(workspace) = self.workspace() else {
9336 return;
9337 };
9338
9339 let position = self.selections.newest_anchor().head();
9340
9341 let Some((buffer, buffer_position)) =
9342 self.buffer.read(cx).text_anchor_for_position(position, cx)
9343 else {
9344 return;
9345 };
9346
9347 let project = self.project.clone();
9348
9349 cx.spawn(|_, mut cx| async move {
9350 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9351
9352 if let Some((_, path)) = result {
9353 workspace
9354 .update(&mut cx, |workspace, cx| {
9355 workspace.open_resolved_path(path, cx)
9356 })?
9357 .await?;
9358 }
9359 anyhow::Ok(())
9360 })
9361 .detach();
9362 }
9363
9364 pub(crate) fn navigate_to_hover_links(
9365 &mut self,
9366 kind: Option<GotoDefinitionKind>,
9367 mut definitions: Vec<HoverLink>,
9368 split: bool,
9369 cx: &mut ViewContext<Editor>,
9370 ) -> Task<Result<Navigated>> {
9371 // If there is one definition, just open it directly
9372 if definitions.len() == 1 {
9373 let definition = definitions.pop().unwrap();
9374
9375 enum TargetTaskResult {
9376 Location(Option<Location>),
9377 AlreadyNavigated,
9378 }
9379
9380 let target_task = match definition {
9381 HoverLink::Text(link) => {
9382 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9383 }
9384 HoverLink::InlayHint(lsp_location, server_id) => {
9385 let computation = self.compute_target_location(lsp_location, server_id, cx);
9386 cx.background_executor().spawn(async move {
9387 let location = computation.await?;
9388 Ok(TargetTaskResult::Location(location))
9389 })
9390 }
9391 HoverLink::Url(url) => {
9392 cx.open_url(&url);
9393 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9394 }
9395 HoverLink::File(path) => {
9396 if let Some(workspace) = self.workspace() {
9397 cx.spawn(|_, mut cx| async move {
9398 workspace
9399 .update(&mut cx, |workspace, cx| {
9400 workspace.open_resolved_path(path, cx)
9401 })?
9402 .await
9403 .map(|_| TargetTaskResult::AlreadyNavigated)
9404 })
9405 } else {
9406 Task::ready(Ok(TargetTaskResult::Location(None)))
9407 }
9408 }
9409 };
9410 cx.spawn(|editor, mut cx| async move {
9411 let target = match target_task.await.context("target resolution task")? {
9412 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9413 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9414 TargetTaskResult::Location(Some(target)) => target,
9415 };
9416
9417 editor.update(&mut cx, |editor, cx| {
9418 let Some(workspace) = editor.workspace() else {
9419 return Navigated::No;
9420 };
9421 let pane = workspace.read(cx).active_pane().clone();
9422
9423 let range = target.range.to_offset(target.buffer.read(cx));
9424 let range = editor.range_for_match(&range);
9425
9426 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9427 let buffer = target.buffer.read(cx);
9428 let range = check_multiline_range(buffer, range);
9429 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9430 s.select_ranges([range]);
9431 });
9432 } else {
9433 cx.window_context().defer(move |cx| {
9434 let target_editor: View<Self> =
9435 workspace.update(cx, |workspace, cx| {
9436 let pane = if split {
9437 workspace.adjacent_pane(cx)
9438 } else {
9439 workspace.active_pane().clone()
9440 };
9441
9442 workspace.open_project_item(
9443 pane,
9444 target.buffer.clone(),
9445 true,
9446 true,
9447 cx,
9448 )
9449 });
9450 target_editor.update(cx, |target_editor, cx| {
9451 // When selecting a definition in a different buffer, disable the nav history
9452 // to avoid creating a history entry at the previous cursor location.
9453 pane.update(cx, |pane, _| pane.disable_history());
9454 let buffer = target.buffer.read(cx);
9455 let range = check_multiline_range(buffer, range);
9456 target_editor.change_selections(
9457 Some(Autoscroll::focused()),
9458 cx,
9459 |s| {
9460 s.select_ranges([range]);
9461 },
9462 );
9463 pane.update(cx, |pane, _| pane.enable_history());
9464 });
9465 });
9466 }
9467 Navigated::Yes
9468 })
9469 })
9470 } else if !definitions.is_empty() {
9471 cx.spawn(|editor, mut cx| async move {
9472 let (title, location_tasks, workspace) = editor
9473 .update(&mut cx, |editor, cx| {
9474 let tab_kind = match kind {
9475 Some(GotoDefinitionKind::Implementation) => "Implementations",
9476 _ => "Definitions",
9477 };
9478 let title = definitions
9479 .iter()
9480 .find_map(|definition| match definition {
9481 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9482 let buffer = origin.buffer.read(cx);
9483 format!(
9484 "{} for {}",
9485 tab_kind,
9486 buffer
9487 .text_for_range(origin.range.clone())
9488 .collect::<String>()
9489 )
9490 }),
9491 HoverLink::InlayHint(_, _) => None,
9492 HoverLink::Url(_) => None,
9493 HoverLink::File(_) => None,
9494 })
9495 .unwrap_or(tab_kind.to_string());
9496 let location_tasks = definitions
9497 .into_iter()
9498 .map(|definition| match definition {
9499 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9500 HoverLink::InlayHint(lsp_location, server_id) => {
9501 editor.compute_target_location(lsp_location, server_id, cx)
9502 }
9503 HoverLink::Url(_) => Task::ready(Ok(None)),
9504 HoverLink::File(_) => Task::ready(Ok(None)),
9505 })
9506 .collect::<Vec<_>>();
9507 (title, location_tasks, editor.workspace().clone())
9508 })
9509 .context("location tasks preparation")?;
9510
9511 let locations = future::join_all(location_tasks)
9512 .await
9513 .into_iter()
9514 .filter_map(|location| location.transpose())
9515 .collect::<Result<_>>()
9516 .context("location tasks")?;
9517
9518 let Some(workspace) = workspace else {
9519 return Ok(Navigated::No);
9520 };
9521 let opened = workspace
9522 .update(&mut cx, |workspace, cx| {
9523 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9524 })
9525 .ok();
9526
9527 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9528 })
9529 } else {
9530 Task::ready(Ok(Navigated::No))
9531 }
9532 }
9533
9534 fn compute_target_location(
9535 &self,
9536 lsp_location: lsp::Location,
9537 server_id: LanguageServerId,
9538 cx: &mut ViewContext<Self>,
9539 ) -> Task<anyhow::Result<Option<Location>>> {
9540 let Some(project) = self.project.clone() else {
9541 return Task::Ready(Some(Ok(None)));
9542 };
9543
9544 cx.spawn(move |editor, mut cx| async move {
9545 let location_task = editor.update(&mut cx, |_, cx| {
9546 project.update(cx, |project, cx| {
9547 let language_server_name = project
9548 .language_server_statuses(cx)
9549 .find(|(id, _)| server_id == *id)
9550 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9551 language_server_name.map(|language_server_name| {
9552 project.open_local_buffer_via_lsp(
9553 lsp_location.uri.clone(),
9554 server_id,
9555 language_server_name,
9556 cx,
9557 )
9558 })
9559 })
9560 })?;
9561 let location = match location_task {
9562 Some(task) => Some({
9563 let target_buffer_handle = task.await.context("open local buffer")?;
9564 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9565 let target_start = target_buffer
9566 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9567 let target_end = target_buffer
9568 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9569 target_buffer.anchor_after(target_start)
9570 ..target_buffer.anchor_before(target_end)
9571 })?;
9572 Location {
9573 buffer: target_buffer_handle,
9574 range,
9575 }
9576 }),
9577 None => None,
9578 };
9579 Ok(location)
9580 })
9581 }
9582
9583 pub fn find_all_references(
9584 &mut self,
9585 _: &FindAllReferences,
9586 cx: &mut ViewContext<Self>,
9587 ) -> Option<Task<Result<Navigated>>> {
9588 let selection = self.selections.newest::<usize>(cx);
9589 let multi_buffer = self.buffer.read(cx);
9590 let head = selection.head();
9591
9592 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9593 let head_anchor = multi_buffer_snapshot.anchor_at(
9594 head,
9595 if head < selection.tail() {
9596 Bias::Right
9597 } else {
9598 Bias::Left
9599 },
9600 );
9601
9602 match self
9603 .find_all_references_task_sources
9604 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9605 {
9606 Ok(_) => {
9607 log::info!(
9608 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9609 );
9610 return None;
9611 }
9612 Err(i) => {
9613 self.find_all_references_task_sources.insert(i, head_anchor);
9614 }
9615 }
9616
9617 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9618 let workspace = self.workspace()?;
9619 let project = workspace.read(cx).project().clone();
9620 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9621 Some(cx.spawn(|editor, mut cx| async move {
9622 let _cleanup = defer({
9623 let mut cx = cx.clone();
9624 move || {
9625 let _ = editor.update(&mut cx, |editor, _| {
9626 if let Ok(i) =
9627 editor
9628 .find_all_references_task_sources
9629 .binary_search_by(|anchor| {
9630 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9631 })
9632 {
9633 editor.find_all_references_task_sources.remove(i);
9634 }
9635 });
9636 }
9637 });
9638
9639 let locations = references.await?;
9640 if locations.is_empty() {
9641 return anyhow::Ok(Navigated::No);
9642 }
9643
9644 workspace.update(&mut cx, |workspace, cx| {
9645 let title = locations
9646 .first()
9647 .as_ref()
9648 .map(|location| {
9649 let buffer = location.buffer.read(cx);
9650 format!(
9651 "References to `{}`",
9652 buffer
9653 .text_for_range(location.range.clone())
9654 .collect::<String>()
9655 )
9656 })
9657 .unwrap();
9658 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9659 Navigated::Yes
9660 })
9661 }))
9662 }
9663
9664 /// Opens a multibuffer with the given project locations in it
9665 pub fn open_locations_in_multibuffer(
9666 workspace: &mut Workspace,
9667 mut locations: Vec<Location>,
9668 title: String,
9669 split: bool,
9670 cx: &mut ViewContext<Workspace>,
9671 ) {
9672 // If there are multiple definitions, open them in a multibuffer
9673 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9674 let mut locations = locations.into_iter().peekable();
9675 let mut ranges_to_highlight = Vec::new();
9676 let capability = workspace.project().read(cx).capability();
9677
9678 let excerpt_buffer = cx.new_model(|cx| {
9679 let mut multibuffer = MultiBuffer::new(capability);
9680 while let Some(location) = locations.next() {
9681 let buffer = location.buffer.read(cx);
9682 let mut ranges_for_buffer = Vec::new();
9683 let range = location.range.to_offset(buffer);
9684 ranges_for_buffer.push(range.clone());
9685
9686 while let Some(next_location) = locations.peek() {
9687 if next_location.buffer == location.buffer {
9688 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9689 locations.next();
9690 } else {
9691 break;
9692 }
9693 }
9694
9695 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9696 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9697 location.buffer.clone(),
9698 ranges_for_buffer,
9699 DEFAULT_MULTIBUFFER_CONTEXT,
9700 cx,
9701 ))
9702 }
9703
9704 multibuffer.with_title(title)
9705 });
9706
9707 let editor = cx.new_view(|cx| {
9708 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9709 });
9710 editor.update(cx, |editor, cx| {
9711 if let Some(first_range) = ranges_to_highlight.first() {
9712 editor.change_selections(None, cx, |selections| {
9713 selections.clear_disjoint();
9714 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9715 });
9716 }
9717 editor.highlight_background::<Self>(
9718 &ranges_to_highlight,
9719 |theme| theme.editor_highlighted_line_background,
9720 cx,
9721 );
9722 editor.register_buffers_with_language_servers(cx);
9723 });
9724
9725 let item = Box::new(editor);
9726 let item_id = item.item_id();
9727
9728 if split {
9729 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9730 } else {
9731 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9732 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9733 pane.close_current_preview_item(cx)
9734 } else {
9735 None
9736 }
9737 });
9738 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9739 }
9740 workspace.active_pane().update(cx, |pane, cx| {
9741 pane.set_preview_item_id(Some(item_id), cx);
9742 });
9743 }
9744
9745 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9746 use language::ToOffset as _;
9747
9748 let provider = self.semantics_provider.clone()?;
9749 let selection = self.selections.newest_anchor().clone();
9750 let (cursor_buffer, cursor_buffer_position) = self
9751 .buffer
9752 .read(cx)
9753 .text_anchor_for_position(selection.head(), cx)?;
9754 let (tail_buffer, cursor_buffer_position_end) = self
9755 .buffer
9756 .read(cx)
9757 .text_anchor_for_position(selection.tail(), cx)?;
9758 if tail_buffer != cursor_buffer {
9759 return None;
9760 }
9761
9762 let snapshot = cursor_buffer.read(cx).snapshot();
9763 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9764 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9765 let prepare_rename = provider
9766 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
9767 .unwrap_or_else(|| Task::ready(Ok(None)));
9768 drop(snapshot);
9769
9770 Some(cx.spawn(|this, mut cx| async move {
9771 let rename_range = if let Some(range) = prepare_rename.await? {
9772 Some(range)
9773 } else {
9774 this.update(&mut cx, |this, cx| {
9775 let buffer = this.buffer.read(cx).snapshot(cx);
9776 let mut buffer_highlights = this
9777 .document_highlights_for_position(selection.head(), &buffer)
9778 .filter(|highlight| {
9779 highlight.start.excerpt_id == selection.head().excerpt_id
9780 && highlight.end.excerpt_id == selection.head().excerpt_id
9781 });
9782 buffer_highlights
9783 .next()
9784 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9785 })?
9786 };
9787 if let Some(rename_range) = rename_range {
9788 this.update(&mut cx, |this, cx| {
9789 let snapshot = cursor_buffer.read(cx).snapshot();
9790 let rename_buffer_range = rename_range.to_offset(&snapshot);
9791 let cursor_offset_in_rename_range =
9792 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9793 let cursor_offset_in_rename_range_end =
9794 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9795
9796 this.take_rename(false, cx);
9797 let buffer = this.buffer.read(cx).read(cx);
9798 let cursor_offset = selection.head().to_offset(&buffer);
9799 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9800 let rename_end = rename_start + rename_buffer_range.len();
9801 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9802 let mut old_highlight_id = None;
9803 let old_name: Arc<str> = buffer
9804 .chunks(rename_start..rename_end, true)
9805 .map(|chunk| {
9806 if old_highlight_id.is_none() {
9807 old_highlight_id = chunk.syntax_highlight_id;
9808 }
9809 chunk.text
9810 })
9811 .collect::<String>()
9812 .into();
9813
9814 drop(buffer);
9815
9816 // Position the selection in the rename editor so that it matches the current selection.
9817 this.show_local_selections = false;
9818 let rename_editor = cx.new_view(|cx| {
9819 let mut editor = Editor::single_line(cx);
9820 editor.buffer.update(cx, |buffer, cx| {
9821 buffer.edit([(0..0, old_name.clone())], None, cx)
9822 });
9823 let rename_selection_range = match cursor_offset_in_rename_range
9824 .cmp(&cursor_offset_in_rename_range_end)
9825 {
9826 Ordering::Equal => {
9827 editor.select_all(&SelectAll, cx);
9828 return editor;
9829 }
9830 Ordering::Less => {
9831 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
9832 }
9833 Ordering::Greater => {
9834 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
9835 }
9836 };
9837 if rename_selection_range.end > old_name.len() {
9838 editor.select_all(&SelectAll, cx);
9839 } else {
9840 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9841 s.select_ranges([rename_selection_range]);
9842 });
9843 }
9844 editor
9845 });
9846 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
9847 if e == &EditorEvent::Focused {
9848 cx.emit(EditorEvent::FocusedIn)
9849 }
9850 })
9851 .detach();
9852
9853 let write_highlights =
9854 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
9855 let read_highlights =
9856 this.clear_background_highlights::<DocumentHighlightRead>(cx);
9857 let ranges = write_highlights
9858 .iter()
9859 .flat_map(|(_, ranges)| ranges.iter())
9860 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
9861 .cloned()
9862 .collect();
9863
9864 this.highlight_text::<Rename>(
9865 ranges,
9866 HighlightStyle {
9867 fade_out: Some(0.6),
9868 ..Default::default()
9869 },
9870 cx,
9871 );
9872 let rename_focus_handle = rename_editor.focus_handle(cx);
9873 cx.focus(&rename_focus_handle);
9874 let block_id = this.insert_blocks(
9875 [BlockProperties {
9876 style: BlockStyle::Flex,
9877 placement: BlockPlacement::Below(range.start),
9878 height: 1,
9879 render: Arc::new({
9880 let rename_editor = rename_editor.clone();
9881 move |cx: &mut BlockContext| {
9882 let mut text_style = cx.editor_style.text.clone();
9883 if let Some(highlight_style) = old_highlight_id
9884 .and_then(|h| h.style(&cx.editor_style.syntax))
9885 {
9886 text_style = text_style.highlight(highlight_style);
9887 }
9888 div()
9889 .block_mouse_down()
9890 .pl(cx.anchor_x)
9891 .child(EditorElement::new(
9892 &rename_editor,
9893 EditorStyle {
9894 background: cx.theme().system().transparent,
9895 local_player: cx.editor_style.local_player,
9896 text: text_style,
9897 scrollbar_width: cx.editor_style.scrollbar_width,
9898 syntax: cx.editor_style.syntax.clone(),
9899 status: cx.editor_style.status.clone(),
9900 inlay_hints_style: HighlightStyle {
9901 font_weight: Some(FontWeight::BOLD),
9902 ..make_inlay_hints_style(cx)
9903 },
9904 suggestions_style: HighlightStyle {
9905 color: Some(cx.theme().status().predictive),
9906 ..HighlightStyle::default()
9907 },
9908 ..EditorStyle::default()
9909 },
9910 ))
9911 .into_any_element()
9912 }
9913 }),
9914 priority: 0,
9915 }],
9916 Some(Autoscroll::fit()),
9917 cx,
9918 )[0];
9919 this.pending_rename = Some(RenameState {
9920 range,
9921 old_name,
9922 editor: rename_editor,
9923 block_id,
9924 });
9925 })?;
9926 }
9927
9928 Ok(())
9929 }))
9930 }
9931
9932 pub fn confirm_rename(
9933 &mut self,
9934 _: &ConfirmRename,
9935 cx: &mut ViewContext<Self>,
9936 ) -> Option<Task<Result<()>>> {
9937 let rename = self.take_rename(false, cx)?;
9938 let workspace = self.workspace()?.downgrade();
9939 let (buffer, start) = self
9940 .buffer
9941 .read(cx)
9942 .text_anchor_for_position(rename.range.start, cx)?;
9943 let (end_buffer, _) = self
9944 .buffer
9945 .read(cx)
9946 .text_anchor_for_position(rename.range.end, cx)?;
9947 if buffer != end_buffer {
9948 return None;
9949 }
9950
9951 let old_name = rename.old_name;
9952 let new_name = rename.editor.read(cx).text(cx);
9953
9954 let rename = self.semantics_provider.as_ref()?.perform_rename(
9955 &buffer,
9956 start,
9957 new_name.clone(),
9958 cx,
9959 )?;
9960
9961 Some(cx.spawn(|editor, mut cx| async move {
9962 let project_transaction = rename.await?;
9963 Self::open_project_transaction(
9964 &editor,
9965 workspace,
9966 project_transaction,
9967 format!("Rename: {} → {}", old_name, new_name),
9968 cx.clone(),
9969 )
9970 .await?;
9971
9972 editor.update(&mut cx, |editor, cx| {
9973 editor.refresh_document_highlights(cx);
9974 })?;
9975 Ok(())
9976 }))
9977 }
9978
9979 fn take_rename(
9980 &mut self,
9981 moving_cursor: bool,
9982 cx: &mut ViewContext<Self>,
9983 ) -> Option<RenameState> {
9984 let rename = self.pending_rename.take()?;
9985 if rename.editor.focus_handle(cx).is_focused(cx) {
9986 cx.focus(&self.focus_handle);
9987 }
9988
9989 self.remove_blocks(
9990 [rename.block_id].into_iter().collect(),
9991 Some(Autoscroll::fit()),
9992 cx,
9993 );
9994 self.clear_highlights::<Rename>(cx);
9995 self.show_local_selections = true;
9996
9997 if moving_cursor {
9998 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
9999 editor.selections.newest::<usize>(cx).head()
10000 });
10001
10002 // Update the selection to match the position of the selection inside
10003 // the rename editor.
10004 let snapshot = self.buffer.read(cx).read(cx);
10005 let rename_range = rename.range.to_offset(&snapshot);
10006 let cursor_in_editor = snapshot
10007 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10008 .min(rename_range.end);
10009 drop(snapshot);
10010
10011 self.change_selections(None, cx, |s| {
10012 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10013 });
10014 } else {
10015 self.refresh_document_highlights(cx);
10016 }
10017
10018 Some(rename)
10019 }
10020
10021 pub fn pending_rename(&self) -> Option<&RenameState> {
10022 self.pending_rename.as_ref()
10023 }
10024
10025 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10026 let project = match &self.project {
10027 Some(project) => project.clone(),
10028 None => return None,
10029 };
10030
10031 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10032 }
10033
10034 fn format_selections(
10035 &mut self,
10036 _: &FormatSelections,
10037 cx: &mut ViewContext<Self>,
10038 ) -> Option<Task<Result<()>>> {
10039 let project = match &self.project {
10040 Some(project) => project.clone(),
10041 None => return None,
10042 };
10043
10044 let selections = self
10045 .selections
10046 .all_adjusted(cx)
10047 .into_iter()
10048 .filter(|s| !s.is_empty())
10049 .collect_vec();
10050
10051 Some(self.perform_format(
10052 project,
10053 FormatTrigger::Manual,
10054 FormatTarget::Ranges(selections),
10055 cx,
10056 ))
10057 }
10058
10059 fn perform_format(
10060 &mut self,
10061 project: Model<Project>,
10062 trigger: FormatTrigger,
10063 target: FormatTarget,
10064 cx: &mut ViewContext<Self>,
10065 ) -> Task<Result<()>> {
10066 let buffer = self.buffer().clone();
10067 let mut buffers = buffer.read(cx).all_buffers();
10068 if trigger == FormatTrigger::Save {
10069 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10070 }
10071
10072 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10073 let format = project.update(cx, |project, cx| {
10074 project.format(buffers, true, trigger, target, cx)
10075 });
10076
10077 cx.spawn(|_, mut cx| async move {
10078 let transaction = futures::select_biased! {
10079 () = timeout => {
10080 log::warn!("timed out waiting for formatting");
10081 None
10082 }
10083 transaction = format.log_err().fuse() => transaction,
10084 };
10085
10086 buffer
10087 .update(&mut cx, |buffer, cx| {
10088 if let Some(transaction) = transaction {
10089 if !buffer.is_singleton() {
10090 buffer.push_transaction(&transaction.0, cx);
10091 }
10092 }
10093
10094 cx.notify();
10095 })
10096 .ok();
10097
10098 Ok(())
10099 })
10100 }
10101
10102 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10103 if let Some(project) = self.project.clone() {
10104 self.buffer.update(cx, |multi_buffer, cx| {
10105 project.update(cx, |project, cx| {
10106 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10107 });
10108 })
10109 }
10110 }
10111
10112 fn cancel_language_server_work(
10113 &mut self,
10114 _: &actions::CancelLanguageServerWork,
10115 cx: &mut ViewContext<Self>,
10116 ) {
10117 if let Some(project) = self.project.clone() {
10118 self.buffer.update(cx, |multi_buffer, cx| {
10119 project.update(cx, |project, cx| {
10120 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10121 });
10122 })
10123 }
10124 }
10125
10126 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10127 cx.show_character_palette();
10128 }
10129
10130 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10131 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10132 let buffer = self.buffer.read(cx).snapshot(cx);
10133 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10134 let is_valid = buffer
10135 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10136 .any(|entry| {
10137 entry.diagnostic.is_primary
10138 && !entry.range.is_empty()
10139 && entry.range.start == primary_range_start
10140 && entry.diagnostic.message == active_diagnostics.primary_message
10141 });
10142
10143 if is_valid != active_diagnostics.is_valid {
10144 active_diagnostics.is_valid = is_valid;
10145 let mut new_styles = HashMap::default();
10146 for (block_id, diagnostic) in &active_diagnostics.blocks {
10147 new_styles.insert(
10148 *block_id,
10149 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10150 );
10151 }
10152 self.display_map.update(cx, |display_map, _cx| {
10153 display_map.replace_blocks(new_styles)
10154 });
10155 }
10156 }
10157 }
10158
10159 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10160 self.dismiss_diagnostics(cx);
10161 let snapshot = self.snapshot(cx);
10162 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10163 let buffer = self.buffer.read(cx).snapshot(cx);
10164
10165 let mut primary_range = None;
10166 let mut primary_message = None;
10167 let mut group_end = Point::zero();
10168 let diagnostic_group = buffer
10169 .diagnostic_group::<MultiBufferPoint>(group_id)
10170 .filter_map(|entry| {
10171 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10172 && (entry.range.start.row == entry.range.end.row
10173 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10174 {
10175 return None;
10176 }
10177 if entry.range.end > group_end {
10178 group_end = entry.range.end;
10179 }
10180 if entry.diagnostic.is_primary {
10181 primary_range = Some(entry.range.clone());
10182 primary_message = Some(entry.diagnostic.message.clone());
10183 }
10184 Some(entry)
10185 })
10186 .collect::<Vec<_>>();
10187 let primary_range = primary_range?;
10188 let primary_message = primary_message?;
10189 let primary_range =
10190 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10191
10192 let blocks = display_map
10193 .insert_blocks(
10194 diagnostic_group.iter().map(|entry| {
10195 let diagnostic = entry.diagnostic.clone();
10196 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10197 BlockProperties {
10198 style: BlockStyle::Fixed,
10199 placement: BlockPlacement::Below(
10200 buffer.anchor_after(entry.range.start),
10201 ),
10202 height: message_height,
10203 render: diagnostic_block_renderer(diagnostic, None, true, true),
10204 priority: 0,
10205 }
10206 }),
10207 cx,
10208 )
10209 .into_iter()
10210 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10211 .collect();
10212
10213 Some(ActiveDiagnosticGroup {
10214 primary_range,
10215 primary_message,
10216 group_id,
10217 blocks,
10218 is_valid: true,
10219 })
10220 });
10221 self.active_diagnostics.is_some()
10222 }
10223
10224 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10225 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10226 self.display_map.update(cx, |display_map, cx| {
10227 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10228 });
10229 cx.notify();
10230 }
10231 }
10232
10233 pub fn set_selections_from_remote(
10234 &mut self,
10235 selections: Vec<Selection<Anchor>>,
10236 pending_selection: Option<Selection<Anchor>>,
10237 cx: &mut ViewContext<Self>,
10238 ) {
10239 let old_cursor_position = self.selections.newest_anchor().head();
10240 self.selections.change_with(cx, |s| {
10241 s.select_anchors(selections);
10242 if let Some(pending_selection) = pending_selection {
10243 s.set_pending(pending_selection, SelectMode::Character);
10244 } else {
10245 s.clear_pending();
10246 }
10247 });
10248 self.selections_did_change(false, &old_cursor_position, true, cx);
10249 }
10250
10251 fn push_to_selection_history(&mut self) {
10252 self.selection_history.push(SelectionHistoryEntry {
10253 selections: self.selections.disjoint_anchors(),
10254 select_next_state: self.select_next_state.clone(),
10255 select_prev_state: self.select_prev_state.clone(),
10256 add_selections_state: self.add_selections_state.clone(),
10257 });
10258 }
10259
10260 pub fn transact(
10261 &mut self,
10262 cx: &mut ViewContext<Self>,
10263 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10264 ) -> Option<TransactionId> {
10265 self.start_transaction_at(Instant::now(), cx);
10266 update(self, cx);
10267 self.end_transaction_at(Instant::now(), cx)
10268 }
10269
10270 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10271 self.end_selection(cx);
10272 if let Some(tx_id) = self
10273 .buffer
10274 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10275 {
10276 self.selection_history
10277 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10278 cx.emit(EditorEvent::TransactionBegun {
10279 transaction_id: tx_id,
10280 })
10281 }
10282 }
10283
10284 fn end_transaction_at(
10285 &mut self,
10286 now: Instant,
10287 cx: &mut ViewContext<Self>,
10288 ) -> Option<TransactionId> {
10289 if let Some(transaction_id) = self
10290 .buffer
10291 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10292 {
10293 if let Some((_, end_selections)) =
10294 self.selection_history.transaction_mut(transaction_id)
10295 {
10296 *end_selections = Some(self.selections.disjoint_anchors());
10297 } else {
10298 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10299 }
10300
10301 cx.emit(EditorEvent::Edited { transaction_id });
10302 Some(transaction_id)
10303 } else {
10304 None
10305 }
10306 }
10307
10308 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10309 let selection = self.selections.newest::<Point>(cx);
10310
10311 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10312 let range = if selection.is_empty() {
10313 let point = selection.head().to_display_point(&display_map);
10314 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10315 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10316 .to_point(&display_map);
10317 start..end
10318 } else {
10319 selection.range()
10320 };
10321 if display_map.folds_in_range(range).next().is_some() {
10322 self.unfold_lines(&Default::default(), cx)
10323 } else {
10324 self.fold(&Default::default(), cx)
10325 }
10326 }
10327
10328 pub fn toggle_fold_recursive(
10329 &mut self,
10330 _: &actions::ToggleFoldRecursive,
10331 cx: &mut ViewContext<Self>,
10332 ) {
10333 let selection = self.selections.newest::<Point>(cx);
10334
10335 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10336 let range = if selection.is_empty() {
10337 let point = selection.head().to_display_point(&display_map);
10338 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10339 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10340 .to_point(&display_map);
10341 start..end
10342 } else {
10343 selection.range()
10344 };
10345 if display_map.folds_in_range(range).next().is_some() {
10346 self.unfold_recursive(&Default::default(), cx)
10347 } else {
10348 self.fold_recursive(&Default::default(), cx)
10349 }
10350 }
10351
10352 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10353 let mut to_fold = Vec::new();
10354 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10355 let selections = self.selections.all_adjusted(cx);
10356
10357 for selection in selections {
10358 let range = selection.range().sorted();
10359 let buffer_start_row = range.start.row;
10360
10361 if range.start.row != range.end.row {
10362 let mut found = false;
10363 let mut row = range.start.row;
10364 while row <= range.end.row {
10365 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10366 found = true;
10367 row = crease.range().end.row + 1;
10368 to_fold.push(crease);
10369 } else {
10370 row += 1
10371 }
10372 }
10373 if found {
10374 continue;
10375 }
10376 }
10377
10378 for row in (0..=range.start.row).rev() {
10379 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10380 if crease.range().end.row >= buffer_start_row {
10381 to_fold.push(crease);
10382 if row <= range.start.row {
10383 break;
10384 }
10385 }
10386 }
10387 }
10388 }
10389
10390 self.fold_creases(to_fold, true, cx);
10391 }
10392
10393 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10394 if !self.buffer.read(cx).is_singleton() {
10395 return;
10396 }
10397
10398 let fold_at_level = fold_at.level;
10399 let snapshot = self.buffer.read(cx).snapshot(cx);
10400 let mut to_fold = Vec::new();
10401 let mut stack = vec![(0, snapshot.max_row().0, 1)];
10402
10403 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10404 while start_row < end_row {
10405 match self
10406 .snapshot(cx)
10407 .crease_for_buffer_row(MultiBufferRow(start_row))
10408 {
10409 Some(crease) => {
10410 let nested_start_row = crease.range().start.row + 1;
10411 let nested_end_row = crease.range().end.row;
10412
10413 if current_level < fold_at_level {
10414 stack.push((nested_start_row, nested_end_row, current_level + 1));
10415 } else if current_level == fold_at_level {
10416 to_fold.push(crease);
10417 }
10418
10419 start_row = nested_end_row + 1;
10420 }
10421 None => start_row += 1,
10422 }
10423 }
10424 }
10425
10426 self.fold_creases(to_fold, true, cx);
10427 }
10428
10429 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10430 if !self.buffer.read(cx).is_singleton() {
10431 return;
10432 }
10433
10434 let mut fold_ranges = Vec::new();
10435 let snapshot = self.buffer.read(cx).snapshot(cx);
10436
10437 for row in 0..snapshot.max_row().0 {
10438 if let Some(foldable_range) =
10439 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
10440 {
10441 fold_ranges.push(foldable_range);
10442 }
10443 }
10444
10445 self.fold_creases(fold_ranges, true, cx);
10446 }
10447
10448 pub fn fold_function_bodies(
10449 &mut self,
10450 _: &actions::FoldFunctionBodies,
10451 cx: &mut ViewContext<Self>,
10452 ) {
10453 let snapshot = self.buffer.read(cx).snapshot(cx);
10454 let Some((_, _, buffer)) = snapshot.as_singleton() else {
10455 return;
10456 };
10457 let creases = buffer
10458 .function_body_fold_ranges(0..buffer.len())
10459 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
10460 .collect();
10461
10462 self.fold_creases(creases, true, cx);
10463 }
10464
10465 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10466 let mut to_fold = Vec::new();
10467 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10468 let selections = self.selections.all_adjusted(cx);
10469
10470 for selection in selections {
10471 let range = selection.range().sorted();
10472 let buffer_start_row = range.start.row;
10473
10474 if range.start.row != range.end.row {
10475 let mut found = false;
10476 for row in range.start.row..=range.end.row {
10477 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10478 found = true;
10479 to_fold.push(crease);
10480 }
10481 }
10482 if found {
10483 continue;
10484 }
10485 }
10486
10487 for row in (0..=range.start.row).rev() {
10488 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10489 if crease.range().end.row >= buffer_start_row {
10490 to_fold.push(crease);
10491 } else {
10492 break;
10493 }
10494 }
10495 }
10496 }
10497
10498 self.fold_creases(to_fold, true, cx);
10499 }
10500
10501 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10502 let buffer_row = fold_at.buffer_row;
10503 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10504
10505 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
10506 let autoscroll = self
10507 .selections
10508 .all::<Point>(cx)
10509 .iter()
10510 .any(|selection| crease.range().overlaps(&selection.range()));
10511
10512 self.fold_creases(vec![crease], autoscroll, cx);
10513 }
10514 }
10515
10516 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10517 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10518 let buffer = &display_map.buffer_snapshot;
10519 let selections = self.selections.all::<Point>(cx);
10520 let ranges = selections
10521 .iter()
10522 .map(|s| {
10523 let range = s.display_range(&display_map).sorted();
10524 let mut start = range.start.to_point(&display_map);
10525 let mut end = range.end.to_point(&display_map);
10526 start.column = 0;
10527 end.column = buffer.line_len(MultiBufferRow(end.row));
10528 start..end
10529 })
10530 .collect::<Vec<_>>();
10531
10532 self.unfold_ranges(&ranges, true, true, cx);
10533 }
10534
10535 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10536 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10537 let selections = self.selections.all::<Point>(cx);
10538 let ranges = selections
10539 .iter()
10540 .map(|s| {
10541 let mut range = s.display_range(&display_map).sorted();
10542 *range.start.column_mut() = 0;
10543 *range.end.column_mut() = display_map.line_len(range.end.row());
10544 let start = range.start.to_point(&display_map);
10545 let end = range.end.to_point(&display_map);
10546 start..end
10547 })
10548 .collect::<Vec<_>>();
10549
10550 self.unfold_ranges(&ranges, true, true, cx);
10551 }
10552
10553 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10554 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10555
10556 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10557 ..Point::new(
10558 unfold_at.buffer_row.0,
10559 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10560 );
10561
10562 let autoscroll = self
10563 .selections
10564 .all::<Point>(cx)
10565 .iter()
10566 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10567
10568 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
10569 }
10570
10571 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10572 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10573 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
10574 }
10575
10576 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10577 let selections = self.selections.all::<Point>(cx);
10578 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10579 let line_mode = self.selections.line_mode;
10580 let ranges = selections
10581 .into_iter()
10582 .map(|s| {
10583 if line_mode {
10584 let start = Point::new(s.start.row, 0);
10585 let end = Point::new(
10586 s.end.row,
10587 display_map
10588 .buffer_snapshot
10589 .line_len(MultiBufferRow(s.end.row)),
10590 );
10591 Crease::simple(start..end, display_map.fold_placeholder.clone())
10592 } else {
10593 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
10594 }
10595 })
10596 .collect::<Vec<_>>();
10597 self.fold_creases(ranges, true, cx);
10598 }
10599
10600 pub fn fold_creases<T: ToOffset + Clone>(
10601 &mut self,
10602 creases: Vec<Crease<T>>,
10603 auto_scroll: bool,
10604 cx: &mut ViewContext<Self>,
10605 ) {
10606 if creases.is_empty() {
10607 return;
10608 }
10609
10610 let mut buffers_affected = HashSet::default();
10611 let multi_buffer = self.buffer().read(cx);
10612 for crease in &creases {
10613 if let Some((_, buffer, _)) =
10614 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
10615 {
10616 buffers_affected.insert(buffer.read(cx).remote_id());
10617 };
10618 }
10619
10620 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
10621
10622 if auto_scroll {
10623 self.request_autoscroll(Autoscroll::fit(), cx);
10624 }
10625
10626 for buffer_id in buffers_affected {
10627 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10628 }
10629
10630 cx.notify();
10631
10632 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10633 // Clear diagnostics block when folding a range that contains it.
10634 let snapshot = self.snapshot(cx);
10635 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10636 drop(snapshot);
10637 self.active_diagnostics = Some(active_diagnostics);
10638 self.dismiss_diagnostics(cx);
10639 } else {
10640 self.active_diagnostics = Some(active_diagnostics);
10641 }
10642 }
10643
10644 self.scrollbar_marker_state.dirty = true;
10645 }
10646
10647 /// Removes any folds whose ranges intersect any of the given ranges.
10648 pub fn unfold_ranges<T: ToOffset + Clone>(
10649 &mut self,
10650 ranges: &[Range<T>],
10651 inclusive: bool,
10652 auto_scroll: bool,
10653 cx: &mut ViewContext<Self>,
10654 ) {
10655 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10656 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
10657 });
10658 }
10659
10660 /// Removes any folds with the given ranges.
10661 pub fn remove_folds_with_type<T: ToOffset + Clone>(
10662 &mut self,
10663 ranges: &[Range<T>],
10664 type_id: TypeId,
10665 auto_scroll: bool,
10666 cx: &mut ViewContext<Self>,
10667 ) {
10668 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10669 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
10670 });
10671 }
10672
10673 fn remove_folds_with<T: ToOffset + Clone>(
10674 &mut self,
10675 ranges: &[Range<T>],
10676 auto_scroll: bool,
10677 cx: &mut ViewContext<Self>,
10678 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
10679 ) {
10680 if ranges.is_empty() {
10681 return;
10682 }
10683
10684 let mut buffers_affected = HashSet::default();
10685 let multi_buffer = self.buffer().read(cx);
10686 for range in ranges {
10687 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10688 buffers_affected.insert(buffer.read(cx).remote_id());
10689 };
10690 }
10691
10692 self.display_map.update(cx, update);
10693
10694 if auto_scroll {
10695 self.request_autoscroll(Autoscroll::fit(), cx);
10696 }
10697
10698 for buffer_id in buffers_affected {
10699 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10700 }
10701
10702 cx.notify();
10703 self.scrollbar_marker_state.dirty = true;
10704 self.active_indent_guides_state.dirty = true;
10705 }
10706
10707 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
10708 self.display_map.read(cx).fold_placeholder.clone()
10709 }
10710
10711 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10712 if hovered != self.gutter_hovered {
10713 self.gutter_hovered = hovered;
10714 cx.notify();
10715 }
10716 }
10717
10718 pub fn insert_blocks(
10719 &mut self,
10720 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
10721 autoscroll: Option<Autoscroll>,
10722 cx: &mut ViewContext<Self>,
10723 ) -> Vec<CustomBlockId> {
10724 let blocks = self
10725 .display_map
10726 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
10727 if let Some(autoscroll) = autoscroll {
10728 self.request_autoscroll(autoscroll, cx);
10729 }
10730 cx.notify();
10731 blocks
10732 }
10733
10734 pub fn resize_blocks(
10735 &mut self,
10736 heights: HashMap<CustomBlockId, u32>,
10737 autoscroll: Option<Autoscroll>,
10738 cx: &mut ViewContext<Self>,
10739 ) {
10740 self.display_map
10741 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
10742 if let Some(autoscroll) = autoscroll {
10743 self.request_autoscroll(autoscroll, cx);
10744 }
10745 cx.notify();
10746 }
10747
10748 pub fn replace_blocks(
10749 &mut self,
10750 renderers: HashMap<CustomBlockId, RenderBlock>,
10751 autoscroll: Option<Autoscroll>,
10752 cx: &mut ViewContext<Self>,
10753 ) {
10754 self.display_map
10755 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
10756 if let Some(autoscroll) = autoscroll {
10757 self.request_autoscroll(autoscroll, cx);
10758 }
10759 cx.notify();
10760 }
10761
10762 pub fn remove_blocks(
10763 &mut self,
10764 block_ids: HashSet<CustomBlockId>,
10765 autoscroll: Option<Autoscroll>,
10766 cx: &mut ViewContext<Self>,
10767 ) {
10768 self.display_map.update(cx, |display_map, cx| {
10769 display_map.remove_blocks(block_ids, cx)
10770 });
10771 if let Some(autoscroll) = autoscroll {
10772 self.request_autoscroll(autoscroll, cx);
10773 }
10774 cx.notify();
10775 }
10776
10777 pub fn row_for_block(
10778 &self,
10779 block_id: CustomBlockId,
10780 cx: &mut ViewContext<Self>,
10781 ) -> Option<DisplayRow> {
10782 self.display_map
10783 .update(cx, |map, cx| map.row_for_block(block_id, cx))
10784 }
10785
10786 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
10787 self.focused_block = Some(focused_block);
10788 }
10789
10790 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
10791 self.focused_block.take()
10792 }
10793
10794 pub fn insert_creases(
10795 &mut self,
10796 creases: impl IntoIterator<Item = Crease<Anchor>>,
10797 cx: &mut ViewContext<Self>,
10798 ) -> Vec<CreaseId> {
10799 self.display_map
10800 .update(cx, |map, cx| map.insert_creases(creases, cx))
10801 }
10802
10803 pub fn remove_creases(
10804 &mut self,
10805 ids: impl IntoIterator<Item = CreaseId>,
10806 cx: &mut ViewContext<Self>,
10807 ) {
10808 self.display_map
10809 .update(cx, |map, cx| map.remove_creases(ids, cx));
10810 }
10811
10812 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
10813 self.display_map
10814 .update(cx, |map, cx| map.snapshot(cx))
10815 .longest_row()
10816 }
10817
10818 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
10819 self.display_map
10820 .update(cx, |map, cx| map.snapshot(cx))
10821 .max_point()
10822 }
10823
10824 pub fn text(&self, cx: &AppContext) -> String {
10825 self.buffer.read(cx).read(cx).text()
10826 }
10827
10828 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
10829 let text = self.text(cx);
10830 let text = text.trim();
10831
10832 if text.is_empty() {
10833 return None;
10834 }
10835
10836 Some(text.to_string())
10837 }
10838
10839 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
10840 self.transact(cx, |this, cx| {
10841 this.buffer
10842 .read(cx)
10843 .as_singleton()
10844 .expect("you can only call set_text on editors for singleton buffers")
10845 .update(cx, |buffer, cx| buffer.set_text(text, cx));
10846 });
10847 }
10848
10849 pub fn display_text(&self, cx: &mut AppContext) -> String {
10850 self.display_map
10851 .update(cx, |map, cx| map.snapshot(cx))
10852 .text()
10853 }
10854
10855 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
10856 let mut wrap_guides = smallvec::smallvec![];
10857
10858 if self.show_wrap_guides == Some(false) {
10859 return wrap_guides;
10860 }
10861
10862 let settings = self.buffer.read(cx).settings_at(0, cx);
10863 if settings.show_wrap_guides {
10864 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
10865 wrap_guides.push((soft_wrap as usize, true));
10866 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
10867 wrap_guides.push((soft_wrap as usize, true));
10868 }
10869 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
10870 }
10871
10872 wrap_guides
10873 }
10874
10875 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
10876 let settings = self.buffer.read(cx).settings_at(0, cx);
10877 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
10878 match mode {
10879 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
10880 SoftWrap::None
10881 }
10882 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
10883 language_settings::SoftWrap::PreferredLineLength => {
10884 SoftWrap::Column(settings.preferred_line_length)
10885 }
10886 language_settings::SoftWrap::Bounded => {
10887 SoftWrap::Bounded(settings.preferred_line_length)
10888 }
10889 }
10890 }
10891
10892 pub fn set_soft_wrap_mode(
10893 &mut self,
10894 mode: language_settings::SoftWrap,
10895 cx: &mut ViewContext<Self>,
10896 ) {
10897 self.soft_wrap_mode_override = Some(mode);
10898 cx.notify();
10899 }
10900
10901 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
10902 self.text_style_refinement = Some(style);
10903 }
10904
10905 /// called by the Element so we know what style we were most recently rendered with.
10906 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
10907 let rem_size = cx.rem_size();
10908 self.display_map.update(cx, |map, cx| {
10909 map.set_font(
10910 style.text.font(),
10911 style.text.font_size.to_pixels(rem_size),
10912 cx,
10913 )
10914 });
10915 self.style = Some(style);
10916 }
10917
10918 pub fn style(&self) -> Option<&EditorStyle> {
10919 self.style.as_ref()
10920 }
10921
10922 // Called by the element. This method is not designed to be called outside of the editor
10923 // element's layout code because it does not notify when rewrapping is computed synchronously.
10924 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
10925 self.display_map
10926 .update(cx, |map, cx| map.set_wrap_width(width, cx))
10927 }
10928
10929 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
10930 if self.soft_wrap_mode_override.is_some() {
10931 self.soft_wrap_mode_override.take();
10932 } else {
10933 let soft_wrap = match self.soft_wrap_mode(cx) {
10934 SoftWrap::GitDiff => return,
10935 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
10936 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
10937 language_settings::SoftWrap::None
10938 }
10939 };
10940 self.soft_wrap_mode_override = Some(soft_wrap);
10941 }
10942 cx.notify();
10943 }
10944
10945 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
10946 let Some(workspace) = self.workspace() else {
10947 return;
10948 };
10949 let fs = workspace.read(cx).app_state().fs.clone();
10950 let current_show = TabBarSettings::get_global(cx).show;
10951 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
10952 setting.show = Some(!current_show);
10953 });
10954 }
10955
10956 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
10957 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
10958 self.buffer
10959 .read(cx)
10960 .settings_at(0, cx)
10961 .indent_guides
10962 .enabled
10963 });
10964 self.show_indent_guides = Some(!currently_enabled);
10965 cx.notify();
10966 }
10967
10968 fn should_show_indent_guides(&self) -> Option<bool> {
10969 self.show_indent_guides
10970 }
10971
10972 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
10973 let mut editor_settings = EditorSettings::get_global(cx).clone();
10974 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
10975 EditorSettings::override_global(editor_settings, cx);
10976 }
10977
10978 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
10979 self.use_relative_line_numbers
10980 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
10981 }
10982
10983 pub fn toggle_relative_line_numbers(
10984 &mut self,
10985 _: &ToggleRelativeLineNumbers,
10986 cx: &mut ViewContext<Self>,
10987 ) {
10988 let is_relative = self.should_use_relative_line_numbers(cx);
10989 self.set_relative_line_number(Some(!is_relative), cx)
10990 }
10991
10992 pub fn set_relative_line_number(
10993 &mut self,
10994 is_relative: Option<bool>,
10995 cx: &mut ViewContext<Self>,
10996 ) {
10997 self.use_relative_line_numbers = is_relative;
10998 cx.notify();
10999 }
11000
11001 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11002 self.show_gutter = show_gutter;
11003 cx.notify();
11004 }
11005
11006 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11007 self.show_line_numbers = Some(show_line_numbers);
11008 cx.notify();
11009 }
11010
11011 pub fn set_show_git_diff_gutter(
11012 &mut self,
11013 show_git_diff_gutter: bool,
11014 cx: &mut ViewContext<Self>,
11015 ) {
11016 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11017 cx.notify();
11018 }
11019
11020 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11021 self.show_code_actions = Some(show_code_actions);
11022 cx.notify();
11023 }
11024
11025 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11026 self.show_runnables = Some(show_runnables);
11027 cx.notify();
11028 }
11029
11030 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11031 if self.display_map.read(cx).masked != masked {
11032 self.display_map.update(cx, |map, _| map.masked = masked);
11033 }
11034 cx.notify()
11035 }
11036
11037 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11038 self.show_wrap_guides = Some(show_wrap_guides);
11039 cx.notify();
11040 }
11041
11042 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11043 self.show_indent_guides = Some(show_indent_guides);
11044 cx.notify();
11045 }
11046
11047 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11048 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11049 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11050 if let Some(dir) = file.abs_path(cx).parent() {
11051 return Some(dir.to_owned());
11052 }
11053 }
11054
11055 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11056 return Some(project_path.path.to_path_buf());
11057 }
11058 }
11059
11060 None
11061 }
11062
11063 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11064 self.active_excerpt(cx)?
11065 .1
11066 .read(cx)
11067 .file()
11068 .and_then(|f| f.as_local())
11069 }
11070
11071 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11072 if let Some(target) = self.target_file(cx) {
11073 cx.reveal_path(&target.abs_path(cx));
11074 }
11075 }
11076
11077 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11078 if let Some(file) = self.target_file(cx) {
11079 if let Some(path) = file.abs_path(cx).to_str() {
11080 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11081 }
11082 }
11083 }
11084
11085 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11086 if let Some(file) = self.target_file(cx) {
11087 if let Some(path) = file.path().to_str() {
11088 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11089 }
11090 }
11091 }
11092
11093 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11094 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11095
11096 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11097 self.start_git_blame(true, cx);
11098 }
11099
11100 cx.notify();
11101 }
11102
11103 pub fn toggle_git_blame_inline(
11104 &mut self,
11105 _: &ToggleGitBlameInline,
11106 cx: &mut ViewContext<Self>,
11107 ) {
11108 self.toggle_git_blame_inline_internal(true, cx);
11109 cx.notify();
11110 }
11111
11112 pub fn git_blame_inline_enabled(&self) -> bool {
11113 self.git_blame_inline_enabled
11114 }
11115
11116 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11117 self.show_selection_menu = self
11118 .show_selection_menu
11119 .map(|show_selections_menu| !show_selections_menu)
11120 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11121
11122 cx.notify();
11123 }
11124
11125 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11126 self.show_selection_menu
11127 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11128 }
11129
11130 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11131 if let Some(project) = self.project.as_ref() {
11132 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11133 return;
11134 };
11135
11136 if buffer.read(cx).file().is_none() {
11137 return;
11138 }
11139
11140 let focused = self.focus_handle(cx).contains_focused(cx);
11141
11142 let project = project.clone();
11143 let blame =
11144 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11145 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11146 self.blame = Some(blame);
11147 }
11148 }
11149
11150 fn toggle_git_blame_inline_internal(
11151 &mut self,
11152 user_triggered: bool,
11153 cx: &mut ViewContext<Self>,
11154 ) {
11155 if self.git_blame_inline_enabled {
11156 self.git_blame_inline_enabled = false;
11157 self.show_git_blame_inline = false;
11158 self.show_git_blame_inline_delay_task.take();
11159 } else {
11160 self.git_blame_inline_enabled = true;
11161 self.start_git_blame_inline(user_triggered, cx);
11162 }
11163
11164 cx.notify();
11165 }
11166
11167 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11168 self.start_git_blame(user_triggered, cx);
11169
11170 if ProjectSettings::get_global(cx)
11171 .git
11172 .inline_blame_delay()
11173 .is_some()
11174 {
11175 self.start_inline_blame_timer(cx);
11176 } else {
11177 self.show_git_blame_inline = true
11178 }
11179 }
11180
11181 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11182 self.blame.as_ref()
11183 }
11184
11185 pub fn show_git_blame_gutter(&self) -> bool {
11186 self.show_git_blame_gutter
11187 }
11188
11189 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11190 self.show_git_blame_gutter && self.has_blame_entries(cx)
11191 }
11192
11193 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11194 self.show_git_blame_inline
11195 && self.focus_handle.is_focused(cx)
11196 && !self.newest_selection_head_on_empty_line(cx)
11197 && self.has_blame_entries(cx)
11198 }
11199
11200 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11201 self.blame()
11202 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11203 }
11204
11205 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11206 let cursor_anchor = self.selections.newest_anchor().head();
11207
11208 let snapshot = self.buffer.read(cx).snapshot(cx);
11209 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11210
11211 snapshot.line_len(buffer_row) == 0
11212 }
11213
11214 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11215 let buffer_and_selection = maybe!({
11216 let selection = self.selections.newest::<Point>(cx);
11217 let selection_range = selection.range();
11218
11219 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11220 (buffer, selection_range.start.row..selection_range.end.row)
11221 } else {
11222 let buffer_ranges = self
11223 .buffer()
11224 .read(cx)
11225 .range_to_buffer_ranges(selection_range, cx);
11226
11227 let (buffer, range, _) = if selection.reversed {
11228 buffer_ranges.first()
11229 } else {
11230 buffer_ranges.last()
11231 }?;
11232
11233 let snapshot = buffer.read(cx).snapshot();
11234 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11235 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11236 (buffer.clone(), selection)
11237 };
11238
11239 Some((buffer, selection))
11240 });
11241
11242 let Some((buffer, selection)) = buffer_and_selection else {
11243 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11244 };
11245
11246 let Some(project) = self.project.as_ref() else {
11247 return Task::ready(Err(anyhow!("editor does not have project")));
11248 };
11249
11250 project.update(cx, |project, cx| {
11251 project.get_permalink_to_line(&buffer, selection, cx)
11252 })
11253 }
11254
11255 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11256 let permalink_task = self.get_permalink_to_line(cx);
11257 let workspace = self.workspace();
11258
11259 cx.spawn(|_, mut cx| async move {
11260 match permalink_task.await {
11261 Ok(permalink) => {
11262 cx.update(|cx| {
11263 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11264 })
11265 .ok();
11266 }
11267 Err(err) => {
11268 let message = format!("Failed to copy permalink: {err}");
11269
11270 Err::<(), anyhow::Error>(err).log_err();
11271
11272 if let Some(workspace) = workspace {
11273 workspace
11274 .update(&mut cx, |workspace, cx| {
11275 struct CopyPermalinkToLine;
11276
11277 workspace.show_toast(
11278 Toast::new(
11279 NotificationId::unique::<CopyPermalinkToLine>(),
11280 message,
11281 ),
11282 cx,
11283 )
11284 })
11285 .ok();
11286 }
11287 }
11288 }
11289 })
11290 .detach();
11291 }
11292
11293 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11294 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11295 if let Some(file) = self.target_file(cx) {
11296 if let Some(path) = file.path().to_str() {
11297 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11298 }
11299 }
11300 }
11301
11302 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11303 let permalink_task = self.get_permalink_to_line(cx);
11304 let workspace = self.workspace();
11305
11306 cx.spawn(|_, mut cx| async move {
11307 match permalink_task.await {
11308 Ok(permalink) => {
11309 cx.update(|cx| {
11310 cx.open_url(permalink.as_ref());
11311 })
11312 .ok();
11313 }
11314 Err(err) => {
11315 let message = format!("Failed to open permalink: {err}");
11316
11317 Err::<(), anyhow::Error>(err).log_err();
11318
11319 if let Some(workspace) = workspace {
11320 workspace
11321 .update(&mut cx, |workspace, cx| {
11322 struct OpenPermalinkToLine;
11323
11324 workspace.show_toast(
11325 Toast::new(
11326 NotificationId::unique::<OpenPermalinkToLine>(),
11327 message,
11328 ),
11329 cx,
11330 )
11331 })
11332 .ok();
11333 }
11334 }
11335 }
11336 })
11337 .detach();
11338 }
11339
11340 pub fn insert_uuid_v4(&mut self, _: &InsertUuidV4, cx: &mut ViewContext<Self>) {
11341 self.insert_uuid(UuidVersion::V4, cx);
11342 }
11343
11344 pub fn insert_uuid_v7(&mut self, _: &InsertUuidV7, cx: &mut ViewContext<Self>) {
11345 self.insert_uuid(UuidVersion::V7, cx);
11346 }
11347
11348 fn insert_uuid(&mut self, version: UuidVersion, cx: &mut ViewContext<Self>) {
11349 self.transact(cx, |this, cx| {
11350 let edits = this
11351 .selections
11352 .all::<Point>(cx)
11353 .into_iter()
11354 .map(|selection| {
11355 let uuid = match version {
11356 UuidVersion::V4 => uuid::Uuid::new_v4(),
11357 UuidVersion::V7 => uuid::Uuid::now_v7(),
11358 };
11359
11360 (selection.range(), uuid.to_string())
11361 });
11362 this.edit(edits, cx);
11363 this.refresh_inline_completion(true, false, cx);
11364 });
11365 }
11366
11367 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11368 /// last highlight added will be used.
11369 ///
11370 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11371 pub fn highlight_rows<T: 'static>(
11372 &mut self,
11373 range: Range<Anchor>,
11374 color: Hsla,
11375 should_autoscroll: bool,
11376 cx: &mut ViewContext<Self>,
11377 ) {
11378 let snapshot = self.buffer().read(cx).snapshot(cx);
11379 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11380 let ix = row_highlights.binary_search_by(|highlight| {
11381 Ordering::Equal
11382 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11383 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11384 });
11385
11386 if let Err(mut ix) = ix {
11387 let index = post_inc(&mut self.highlight_order);
11388
11389 // If this range intersects with the preceding highlight, then merge it with
11390 // the preceding highlight. Otherwise insert a new highlight.
11391 let mut merged = false;
11392 if ix > 0 {
11393 let prev_highlight = &mut row_highlights[ix - 1];
11394 if prev_highlight
11395 .range
11396 .end
11397 .cmp(&range.start, &snapshot)
11398 .is_ge()
11399 {
11400 ix -= 1;
11401 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11402 prev_highlight.range.end = range.end;
11403 }
11404 merged = true;
11405 prev_highlight.index = index;
11406 prev_highlight.color = color;
11407 prev_highlight.should_autoscroll = should_autoscroll;
11408 }
11409 }
11410
11411 if !merged {
11412 row_highlights.insert(
11413 ix,
11414 RowHighlight {
11415 range: range.clone(),
11416 index,
11417 color,
11418 should_autoscroll,
11419 },
11420 );
11421 }
11422
11423 // If any of the following highlights intersect with this one, merge them.
11424 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11425 let highlight = &row_highlights[ix];
11426 if next_highlight
11427 .range
11428 .start
11429 .cmp(&highlight.range.end, &snapshot)
11430 .is_le()
11431 {
11432 if next_highlight
11433 .range
11434 .end
11435 .cmp(&highlight.range.end, &snapshot)
11436 .is_gt()
11437 {
11438 row_highlights[ix].range.end = next_highlight.range.end;
11439 }
11440 row_highlights.remove(ix + 1);
11441 } else {
11442 break;
11443 }
11444 }
11445 }
11446 }
11447
11448 /// Remove any highlighted row ranges of the given type that intersect the
11449 /// given ranges.
11450 pub fn remove_highlighted_rows<T: 'static>(
11451 &mut self,
11452 ranges_to_remove: Vec<Range<Anchor>>,
11453 cx: &mut ViewContext<Self>,
11454 ) {
11455 let snapshot = self.buffer().read(cx).snapshot(cx);
11456 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11457 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11458 row_highlights.retain(|highlight| {
11459 while let Some(range_to_remove) = ranges_to_remove.peek() {
11460 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11461 Ordering::Less | Ordering::Equal => {
11462 ranges_to_remove.next();
11463 }
11464 Ordering::Greater => {
11465 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11466 Ordering::Less | Ordering::Equal => {
11467 return false;
11468 }
11469 Ordering::Greater => break,
11470 }
11471 }
11472 }
11473 }
11474
11475 true
11476 })
11477 }
11478
11479 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11480 pub fn clear_row_highlights<T: 'static>(&mut self) {
11481 self.highlighted_rows.remove(&TypeId::of::<T>());
11482 }
11483
11484 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11485 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11486 self.highlighted_rows
11487 .get(&TypeId::of::<T>())
11488 .map_or(&[] as &[_], |vec| vec.as_slice())
11489 .iter()
11490 .map(|highlight| (highlight.range.clone(), highlight.color))
11491 }
11492
11493 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11494 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11495 /// Allows to ignore certain kinds of highlights.
11496 pub fn highlighted_display_rows(
11497 &mut self,
11498 cx: &mut WindowContext,
11499 ) -> BTreeMap<DisplayRow, Hsla> {
11500 let snapshot = self.snapshot(cx);
11501 let mut used_highlight_orders = HashMap::default();
11502 self.highlighted_rows
11503 .iter()
11504 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11505 .fold(
11506 BTreeMap::<DisplayRow, Hsla>::new(),
11507 |mut unique_rows, highlight| {
11508 let start = highlight.range.start.to_display_point(&snapshot);
11509 let end = highlight.range.end.to_display_point(&snapshot);
11510 let start_row = start.row().0;
11511 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11512 && end.column() == 0
11513 {
11514 end.row().0.saturating_sub(1)
11515 } else {
11516 end.row().0
11517 };
11518 for row in start_row..=end_row {
11519 let used_index =
11520 used_highlight_orders.entry(row).or_insert(highlight.index);
11521 if highlight.index >= *used_index {
11522 *used_index = highlight.index;
11523 unique_rows.insert(DisplayRow(row), highlight.color);
11524 }
11525 }
11526 unique_rows
11527 },
11528 )
11529 }
11530
11531 pub fn highlighted_display_row_for_autoscroll(
11532 &self,
11533 snapshot: &DisplaySnapshot,
11534 ) -> Option<DisplayRow> {
11535 self.highlighted_rows
11536 .values()
11537 .flat_map(|highlighted_rows| highlighted_rows.iter())
11538 .filter_map(|highlight| {
11539 if highlight.should_autoscroll {
11540 Some(highlight.range.start.to_display_point(snapshot).row())
11541 } else {
11542 None
11543 }
11544 })
11545 .min()
11546 }
11547
11548 pub fn set_search_within_ranges(
11549 &mut self,
11550 ranges: &[Range<Anchor>],
11551 cx: &mut ViewContext<Self>,
11552 ) {
11553 self.highlight_background::<SearchWithinRange>(
11554 ranges,
11555 |colors| colors.editor_document_highlight_read_background,
11556 cx,
11557 )
11558 }
11559
11560 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11561 self.breadcrumb_header = Some(new_header);
11562 }
11563
11564 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11565 self.clear_background_highlights::<SearchWithinRange>(cx);
11566 }
11567
11568 pub fn highlight_background<T: 'static>(
11569 &mut self,
11570 ranges: &[Range<Anchor>],
11571 color_fetcher: fn(&ThemeColors) -> Hsla,
11572 cx: &mut ViewContext<Self>,
11573 ) {
11574 self.background_highlights
11575 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11576 self.scrollbar_marker_state.dirty = true;
11577 cx.notify();
11578 }
11579
11580 pub fn clear_background_highlights<T: 'static>(
11581 &mut self,
11582 cx: &mut ViewContext<Self>,
11583 ) -> Option<BackgroundHighlight> {
11584 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11585 if !text_highlights.1.is_empty() {
11586 self.scrollbar_marker_state.dirty = true;
11587 cx.notify();
11588 }
11589 Some(text_highlights)
11590 }
11591
11592 pub fn highlight_gutter<T: 'static>(
11593 &mut self,
11594 ranges: &[Range<Anchor>],
11595 color_fetcher: fn(&AppContext) -> Hsla,
11596 cx: &mut ViewContext<Self>,
11597 ) {
11598 self.gutter_highlights
11599 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11600 cx.notify();
11601 }
11602
11603 pub fn clear_gutter_highlights<T: 'static>(
11604 &mut self,
11605 cx: &mut ViewContext<Self>,
11606 ) -> Option<GutterHighlight> {
11607 cx.notify();
11608 self.gutter_highlights.remove(&TypeId::of::<T>())
11609 }
11610
11611 #[cfg(feature = "test-support")]
11612 pub fn all_text_background_highlights(
11613 &mut self,
11614 cx: &mut ViewContext<Self>,
11615 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11616 let snapshot = self.snapshot(cx);
11617 let buffer = &snapshot.buffer_snapshot;
11618 let start = buffer.anchor_before(0);
11619 let end = buffer.anchor_after(buffer.len());
11620 let theme = cx.theme().colors();
11621 self.background_highlights_in_range(start..end, &snapshot, theme)
11622 }
11623
11624 #[cfg(feature = "test-support")]
11625 pub fn search_background_highlights(
11626 &mut self,
11627 cx: &mut ViewContext<Self>,
11628 ) -> Vec<Range<Point>> {
11629 let snapshot = self.buffer().read(cx).snapshot(cx);
11630
11631 let highlights = self
11632 .background_highlights
11633 .get(&TypeId::of::<items::BufferSearchHighlights>());
11634
11635 if let Some((_color, ranges)) = highlights {
11636 ranges
11637 .iter()
11638 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11639 .collect_vec()
11640 } else {
11641 vec![]
11642 }
11643 }
11644
11645 fn document_highlights_for_position<'a>(
11646 &'a self,
11647 position: Anchor,
11648 buffer: &'a MultiBufferSnapshot,
11649 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11650 let read_highlights = self
11651 .background_highlights
11652 .get(&TypeId::of::<DocumentHighlightRead>())
11653 .map(|h| &h.1);
11654 let write_highlights = self
11655 .background_highlights
11656 .get(&TypeId::of::<DocumentHighlightWrite>())
11657 .map(|h| &h.1);
11658 let left_position = position.bias_left(buffer);
11659 let right_position = position.bias_right(buffer);
11660 read_highlights
11661 .into_iter()
11662 .chain(write_highlights)
11663 .flat_map(move |ranges| {
11664 let start_ix = match ranges.binary_search_by(|probe| {
11665 let cmp = probe.end.cmp(&left_position, buffer);
11666 if cmp.is_ge() {
11667 Ordering::Greater
11668 } else {
11669 Ordering::Less
11670 }
11671 }) {
11672 Ok(i) | Err(i) => i,
11673 };
11674
11675 ranges[start_ix..]
11676 .iter()
11677 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11678 })
11679 }
11680
11681 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11682 self.background_highlights
11683 .get(&TypeId::of::<T>())
11684 .map_or(false, |(_, highlights)| !highlights.is_empty())
11685 }
11686
11687 pub fn background_highlights_in_range(
11688 &self,
11689 search_range: Range<Anchor>,
11690 display_snapshot: &DisplaySnapshot,
11691 theme: &ThemeColors,
11692 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11693 let mut results = Vec::new();
11694 for (color_fetcher, ranges) in self.background_highlights.values() {
11695 let color = color_fetcher(theme);
11696 let start_ix = match ranges.binary_search_by(|probe| {
11697 let cmp = probe
11698 .end
11699 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11700 if cmp.is_gt() {
11701 Ordering::Greater
11702 } else {
11703 Ordering::Less
11704 }
11705 }) {
11706 Ok(i) | Err(i) => i,
11707 };
11708 for range in &ranges[start_ix..] {
11709 if range
11710 .start
11711 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11712 .is_ge()
11713 {
11714 break;
11715 }
11716
11717 let start = range.start.to_display_point(display_snapshot);
11718 let end = range.end.to_display_point(display_snapshot);
11719 results.push((start..end, color))
11720 }
11721 }
11722 results
11723 }
11724
11725 pub fn background_highlight_row_ranges<T: 'static>(
11726 &self,
11727 search_range: Range<Anchor>,
11728 display_snapshot: &DisplaySnapshot,
11729 count: usize,
11730 ) -> Vec<RangeInclusive<DisplayPoint>> {
11731 let mut results = Vec::new();
11732 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
11733 return vec![];
11734 };
11735
11736 let start_ix = match ranges.binary_search_by(|probe| {
11737 let cmp = probe
11738 .end
11739 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11740 if cmp.is_gt() {
11741 Ordering::Greater
11742 } else {
11743 Ordering::Less
11744 }
11745 }) {
11746 Ok(i) | Err(i) => i,
11747 };
11748 let mut push_region = |start: Option<Point>, end: Option<Point>| {
11749 if let (Some(start_display), Some(end_display)) = (start, end) {
11750 results.push(
11751 start_display.to_display_point(display_snapshot)
11752 ..=end_display.to_display_point(display_snapshot),
11753 );
11754 }
11755 };
11756 let mut start_row: Option<Point> = None;
11757 let mut end_row: Option<Point> = None;
11758 if ranges.len() > count {
11759 return Vec::new();
11760 }
11761 for range in &ranges[start_ix..] {
11762 if range
11763 .start
11764 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11765 .is_ge()
11766 {
11767 break;
11768 }
11769 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
11770 if let Some(current_row) = &end_row {
11771 if end.row == current_row.row {
11772 continue;
11773 }
11774 }
11775 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
11776 if start_row.is_none() {
11777 assert_eq!(end_row, None);
11778 start_row = Some(start);
11779 end_row = Some(end);
11780 continue;
11781 }
11782 if let Some(current_end) = end_row.as_mut() {
11783 if start.row > current_end.row + 1 {
11784 push_region(start_row, end_row);
11785 start_row = Some(start);
11786 end_row = Some(end);
11787 } else {
11788 // Merge two hunks.
11789 *current_end = end;
11790 }
11791 } else {
11792 unreachable!();
11793 }
11794 }
11795 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
11796 push_region(start_row, end_row);
11797 results
11798 }
11799
11800 pub fn gutter_highlights_in_range(
11801 &self,
11802 search_range: Range<Anchor>,
11803 display_snapshot: &DisplaySnapshot,
11804 cx: &AppContext,
11805 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11806 let mut results = Vec::new();
11807 for (color_fetcher, ranges) in self.gutter_highlights.values() {
11808 let color = color_fetcher(cx);
11809 let start_ix = match ranges.binary_search_by(|probe| {
11810 let cmp = probe
11811 .end
11812 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11813 if cmp.is_gt() {
11814 Ordering::Greater
11815 } else {
11816 Ordering::Less
11817 }
11818 }) {
11819 Ok(i) | Err(i) => i,
11820 };
11821 for range in &ranges[start_ix..] {
11822 if range
11823 .start
11824 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11825 .is_ge()
11826 {
11827 break;
11828 }
11829
11830 let start = range.start.to_display_point(display_snapshot);
11831 let end = range.end.to_display_point(display_snapshot);
11832 results.push((start..end, color))
11833 }
11834 }
11835 results
11836 }
11837
11838 /// Get the text ranges corresponding to the redaction query
11839 pub fn redacted_ranges(
11840 &self,
11841 search_range: Range<Anchor>,
11842 display_snapshot: &DisplaySnapshot,
11843 cx: &WindowContext,
11844 ) -> Vec<Range<DisplayPoint>> {
11845 display_snapshot
11846 .buffer_snapshot
11847 .redacted_ranges(search_range, |file| {
11848 if let Some(file) = file {
11849 file.is_private()
11850 && EditorSettings::get(
11851 Some(SettingsLocation {
11852 worktree_id: file.worktree_id(cx),
11853 path: file.path().as_ref(),
11854 }),
11855 cx,
11856 )
11857 .redact_private_values
11858 } else {
11859 false
11860 }
11861 })
11862 .map(|range| {
11863 range.start.to_display_point(display_snapshot)
11864 ..range.end.to_display_point(display_snapshot)
11865 })
11866 .collect()
11867 }
11868
11869 pub fn highlight_text<T: 'static>(
11870 &mut self,
11871 ranges: Vec<Range<Anchor>>,
11872 style: HighlightStyle,
11873 cx: &mut ViewContext<Self>,
11874 ) {
11875 self.display_map.update(cx, |map, _| {
11876 map.highlight_text(TypeId::of::<T>(), ranges, style)
11877 });
11878 cx.notify();
11879 }
11880
11881 pub(crate) fn highlight_inlays<T: 'static>(
11882 &mut self,
11883 highlights: Vec<InlayHighlight>,
11884 style: HighlightStyle,
11885 cx: &mut ViewContext<Self>,
11886 ) {
11887 self.display_map.update(cx, |map, _| {
11888 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
11889 });
11890 cx.notify();
11891 }
11892
11893 pub fn text_highlights<'a, T: 'static>(
11894 &'a self,
11895 cx: &'a AppContext,
11896 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
11897 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
11898 }
11899
11900 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
11901 let cleared = self
11902 .display_map
11903 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
11904 if cleared {
11905 cx.notify();
11906 }
11907 }
11908
11909 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
11910 (self.read_only(cx) || self.blink_manager.read(cx).visible())
11911 && self.focus_handle.is_focused(cx)
11912 }
11913
11914 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
11915 self.show_cursor_when_unfocused = is_enabled;
11916 cx.notify();
11917 }
11918
11919 pub fn lsp_store(&self, cx: &AppContext) -> Option<Model<LspStore>> {
11920 self.project
11921 .as_ref()
11922 .map(|project| project.read(cx).lsp_store())
11923 }
11924
11925 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
11926 cx.notify();
11927 }
11928
11929 fn on_buffer_event(
11930 &mut self,
11931 multibuffer: Model<MultiBuffer>,
11932 event: &multi_buffer::Event,
11933 cx: &mut ViewContext<Self>,
11934 ) {
11935 match event {
11936 multi_buffer::Event::Edited {
11937 singleton_buffer_edited,
11938 edited_buffer: buffer_edited,
11939 } => {
11940 self.scrollbar_marker_state.dirty = true;
11941 self.active_indent_guides_state.dirty = true;
11942 self.refresh_active_diagnostics(cx);
11943 self.refresh_code_actions(cx);
11944 if self.has_active_inline_completion() {
11945 self.update_visible_inline_completion(cx);
11946 }
11947 if let Some(buffer) = buffer_edited {
11948 let buffer_id = buffer.read(cx).remote_id();
11949 if !self.registered_buffers.contains_key(&buffer_id) {
11950 if let Some(lsp_store) = self.lsp_store(cx) {
11951 lsp_store.update(cx, |lsp_store, cx| {
11952 self.registered_buffers.insert(
11953 buffer_id,
11954 lsp_store.register_buffer_with_language_servers(&buffer, cx),
11955 );
11956 })
11957 }
11958 }
11959 }
11960 cx.emit(EditorEvent::BufferEdited);
11961 cx.emit(SearchEvent::MatchesInvalidated);
11962 if *singleton_buffer_edited {
11963 if let Some(project) = &self.project {
11964 let project = project.read(cx);
11965 #[allow(clippy::mutable_key_type)]
11966 let languages_affected = multibuffer
11967 .read(cx)
11968 .all_buffers()
11969 .into_iter()
11970 .filter_map(|buffer| {
11971 let buffer = buffer.read(cx);
11972 let language = buffer.language()?;
11973 if project.is_local()
11974 && project
11975 .language_servers_for_local_buffer(buffer, cx)
11976 .count()
11977 == 0
11978 {
11979 None
11980 } else {
11981 Some(language)
11982 }
11983 })
11984 .cloned()
11985 .collect::<HashSet<_>>();
11986 if !languages_affected.is_empty() {
11987 self.refresh_inlay_hints(
11988 InlayHintRefreshReason::BufferEdited(languages_affected),
11989 cx,
11990 );
11991 }
11992 }
11993 }
11994
11995 let Some(project) = &self.project else { return };
11996 let (telemetry, is_via_ssh) = {
11997 let project = project.read(cx);
11998 let telemetry = project.client().telemetry().clone();
11999 let is_via_ssh = project.is_via_ssh();
12000 (telemetry, is_via_ssh)
12001 };
12002 refresh_linked_ranges(self, cx);
12003 telemetry.log_edit_event("editor", is_via_ssh);
12004 }
12005 multi_buffer::Event::ExcerptsAdded {
12006 buffer,
12007 predecessor,
12008 excerpts,
12009 } => {
12010 self.tasks_update_task = Some(self.refresh_runnables(cx));
12011 let buffer_id = buffer.read(cx).remote_id();
12012 if !self.diff_map.diff_bases.contains_key(&buffer_id) {
12013 if let Some(project) = &self.project {
12014 get_unstaged_changes_for_buffers(project, [buffer.clone()], cx);
12015 }
12016 }
12017 cx.emit(EditorEvent::ExcerptsAdded {
12018 buffer: buffer.clone(),
12019 predecessor: *predecessor,
12020 excerpts: excerpts.clone(),
12021 });
12022 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12023 }
12024 multi_buffer::Event::ExcerptsRemoved { ids } => {
12025 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12026 let buffer = self.buffer.read(cx);
12027 self.registered_buffers
12028 .retain(|buffer_id, _| buffer.buffer(*buffer_id).is_some());
12029 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12030 }
12031 multi_buffer::Event::ExcerptsEdited { ids } => {
12032 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12033 }
12034 multi_buffer::Event::ExcerptsExpanded { ids } => {
12035 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12036 }
12037 multi_buffer::Event::Reparsed(buffer_id) => {
12038 self.tasks_update_task = Some(self.refresh_runnables(cx));
12039
12040 cx.emit(EditorEvent::Reparsed(*buffer_id));
12041 }
12042 multi_buffer::Event::LanguageChanged(buffer_id) => {
12043 linked_editing_ranges::refresh_linked_ranges(self, cx);
12044 cx.emit(EditorEvent::Reparsed(*buffer_id));
12045 cx.notify();
12046 }
12047 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12048 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12049 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12050 cx.emit(EditorEvent::TitleChanged)
12051 }
12052 // multi_buffer::Event::DiffBaseChanged => {
12053 // self.scrollbar_marker_state.dirty = true;
12054 // cx.emit(EditorEvent::DiffBaseChanged);
12055 // cx.notify();
12056 // }
12057 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12058 multi_buffer::Event::DiagnosticsUpdated => {
12059 self.refresh_active_diagnostics(cx);
12060 self.scrollbar_marker_state.dirty = true;
12061 cx.notify();
12062 }
12063 _ => {}
12064 };
12065 }
12066
12067 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12068 cx.notify();
12069 }
12070
12071 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12072 self.tasks_update_task = Some(self.refresh_runnables(cx));
12073 self.refresh_inline_completion(true, false, cx);
12074 self.refresh_inlay_hints(
12075 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12076 self.selections.newest_anchor().head(),
12077 &self.buffer.read(cx).snapshot(cx),
12078 cx,
12079 )),
12080 cx,
12081 );
12082
12083 let old_cursor_shape = self.cursor_shape;
12084
12085 {
12086 let editor_settings = EditorSettings::get_global(cx);
12087 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12088 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12089 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12090 }
12091
12092 if old_cursor_shape != self.cursor_shape {
12093 cx.emit(EditorEvent::CursorShapeChanged);
12094 }
12095
12096 let project_settings = ProjectSettings::get_global(cx);
12097 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12098
12099 if self.mode == EditorMode::Full {
12100 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12101 if self.git_blame_inline_enabled != inline_blame_enabled {
12102 self.toggle_git_blame_inline_internal(false, cx);
12103 }
12104 }
12105
12106 cx.notify();
12107 }
12108
12109 pub fn set_searchable(&mut self, searchable: bool) {
12110 self.searchable = searchable;
12111 }
12112
12113 pub fn searchable(&self) -> bool {
12114 self.searchable
12115 }
12116
12117 fn open_proposed_changes_editor(
12118 &mut self,
12119 _: &OpenProposedChangesEditor,
12120 cx: &mut ViewContext<Self>,
12121 ) {
12122 let Some(workspace) = self.workspace() else {
12123 cx.propagate();
12124 return;
12125 };
12126
12127 let selections = self.selections.all::<usize>(cx);
12128 let buffer = self.buffer.read(cx);
12129 let mut new_selections_by_buffer = HashMap::default();
12130 for selection in selections {
12131 for (buffer, range, _) in
12132 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12133 {
12134 let mut range = range.to_point(buffer.read(cx));
12135 range.start.column = 0;
12136 range.end.column = buffer.read(cx).line_len(range.end.row);
12137 new_selections_by_buffer
12138 .entry(buffer)
12139 .or_insert(Vec::new())
12140 .push(range)
12141 }
12142 }
12143
12144 let proposed_changes_buffers = new_selections_by_buffer
12145 .into_iter()
12146 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12147 .collect::<Vec<_>>();
12148 let proposed_changes_editor = cx.new_view(|cx| {
12149 ProposedChangesEditor::new(
12150 "Proposed changes",
12151 proposed_changes_buffers,
12152 self.project.clone(),
12153 cx,
12154 )
12155 });
12156
12157 cx.window_context().defer(move |cx| {
12158 workspace.update(cx, |workspace, cx| {
12159 workspace.active_pane().update(cx, |pane, cx| {
12160 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12161 });
12162 });
12163 });
12164 }
12165
12166 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12167 self.open_excerpts_common(None, true, cx)
12168 }
12169
12170 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12171 self.open_excerpts_common(None, false, cx)
12172 }
12173
12174 fn open_excerpts_common(
12175 &mut self,
12176 jump_data: Option<JumpData>,
12177 split: bool,
12178 cx: &mut ViewContext<Self>,
12179 ) {
12180 let Some(workspace) = self.workspace() else {
12181 cx.propagate();
12182 return;
12183 };
12184
12185 if self.buffer.read(cx).is_singleton() {
12186 cx.propagate();
12187 return;
12188 }
12189
12190 let mut new_selections_by_buffer = HashMap::default();
12191 match &jump_data {
12192 Some(jump_data) => {
12193 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12194 if let Some(buffer) = multi_buffer_snapshot
12195 .buffer_id_for_excerpt(jump_data.excerpt_id)
12196 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12197 {
12198 let buffer_snapshot = buffer.read(cx).snapshot();
12199 let jump_to_point = if buffer_snapshot.can_resolve(&jump_data.anchor) {
12200 language::ToPoint::to_point(&jump_data.anchor, &buffer_snapshot)
12201 } else {
12202 buffer_snapshot.clip_point(jump_data.position, Bias::Left)
12203 };
12204 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12205 new_selections_by_buffer.insert(
12206 buffer,
12207 (
12208 vec![jump_to_offset..jump_to_offset],
12209 Some(jump_data.line_offset_from_top),
12210 ),
12211 );
12212 }
12213 }
12214 None => {
12215 let selections = self.selections.all::<usize>(cx);
12216 let buffer = self.buffer.read(cx);
12217 for selection in selections {
12218 for (mut buffer_handle, mut range, _) in
12219 buffer.range_to_buffer_ranges(selection.range(), cx)
12220 {
12221 // When editing branch buffers, jump to the corresponding location
12222 // in their base buffer.
12223 let buffer = buffer_handle.read(cx);
12224 if let Some(base_buffer) = buffer.base_buffer() {
12225 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12226 buffer_handle = base_buffer;
12227 }
12228
12229 if selection.reversed {
12230 mem::swap(&mut range.start, &mut range.end);
12231 }
12232 new_selections_by_buffer
12233 .entry(buffer_handle)
12234 .or_insert((Vec::new(), None))
12235 .0
12236 .push(range)
12237 }
12238 }
12239 }
12240 }
12241
12242 if new_selections_by_buffer.is_empty() {
12243 return;
12244 }
12245
12246 // We defer the pane interaction because we ourselves are a workspace item
12247 // and activating a new item causes the pane to call a method on us reentrantly,
12248 // which panics if we're on the stack.
12249 cx.window_context().defer(move |cx| {
12250 workspace.update(cx, |workspace, cx| {
12251 let pane = if split {
12252 workspace.adjacent_pane(cx)
12253 } else {
12254 workspace.active_pane().clone()
12255 };
12256
12257 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12258 let editor = buffer
12259 .read(cx)
12260 .file()
12261 .is_none()
12262 .then(|| {
12263 // Handle file-less buffers separately: those are not really the project items, so won't have a paroject path or entity id,
12264 // so `workspace.open_project_item` will never find them, always opening a new editor.
12265 // Instead, we try to activate the existing editor in the pane first.
12266 let (editor, pane_item_index) =
12267 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12268 let editor = item.downcast::<Editor>()?;
12269 let singleton_buffer =
12270 editor.read(cx).buffer().read(cx).as_singleton()?;
12271 if singleton_buffer == buffer {
12272 Some((editor, i))
12273 } else {
12274 None
12275 }
12276 })?;
12277 pane.update(cx, |pane, cx| {
12278 pane.activate_item(pane_item_index, true, true, cx)
12279 });
12280 Some(editor)
12281 })
12282 .flatten()
12283 .unwrap_or_else(|| {
12284 workspace.open_project_item::<Self>(
12285 pane.clone(),
12286 buffer,
12287 true,
12288 true,
12289 cx,
12290 )
12291 });
12292
12293 editor.update(cx, |editor, cx| {
12294 let autoscroll = match scroll_offset {
12295 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12296 None => Autoscroll::newest(),
12297 };
12298 let nav_history = editor.nav_history.take();
12299 editor.change_selections(Some(autoscroll), cx, |s| {
12300 s.select_ranges(ranges);
12301 });
12302 editor.nav_history = nav_history;
12303 });
12304 }
12305 })
12306 });
12307 }
12308
12309 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12310 let snapshot = self.buffer.read(cx).read(cx);
12311 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12312 Some(
12313 ranges
12314 .iter()
12315 .map(move |range| {
12316 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12317 })
12318 .collect(),
12319 )
12320 }
12321
12322 fn selection_replacement_ranges(
12323 &self,
12324 range: Range<OffsetUtf16>,
12325 cx: &mut AppContext,
12326 ) -> Vec<Range<OffsetUtf16>> {
12327 let selections = self.selections.all::<OffsetUtf16>(cx);
12328 let newest_selection = selections
12329 .iter()
12330 .max_by_key(|selection| selection.id)
12331 .unwrap();
12332 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12333 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12334 let snapshot = self.buffer.read(cx).read(cx);
12335 selections
12336 .into_iter()
12337 .map(|mut selection| {
12338 selection.start.0 =
12339 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12340 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12341 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12342 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12343 })
12344 .collect()
12345 }
12346
12347 fn report_editor_event(
12348 &self,
12349 operation: &'static str,
12350 file_extension: Option<String>,
12351 cx: &AppContext,
12352 ) {
12353 if cfg!(any(test, feature = "test-support")) {
12354 return;
12355 }
12356
12357 let Some(project) = &self.project else { return };
12358
12359 // If None, we are in a file without an extension
12360 let file = self
12361 .buffer
12362 .read(cx)
12363 .as_singleton()
12364 .and_then(|b| b.read(cx).file());
12365 let file_extension = file_extension.or(file
12366 .as_ref()
12367 .and_then(|file| Path::new(file.file_name(cx)).extension())
12368 .and_then(|e| e.to_str())
12369 .map(|a| a.to_string()));
12370
12371 let vim_mode = cx
12372 .global::<SettingsStore>()
12373 .raw_user_settings()
12374 .get("vim_mode")
12375 == Some(&serde_json::Value::Bool(true));
12376
12377 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12378 == language::language_settings::InlineCompletionProvider::Copilot;
12379 let copilot_enabled_for_language = self
12380 .buffer
12381 .read(cx)
12382 .settings_at(0, cx)
12383 .show_inline_completions;
12384
12385 let project = project.read(cx);
12386 let telemetry = project.client().telemetry().clone();
12387 telemetry.report_editor_event(
12388 file_extension,
12389 vim_mode,
12390 operation,
12391 copilot_enabled,
12392 copilot_enabled_for_language,
12393 project.is_via_ssh(),
12394 )
12395 }
12396
12397 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12398 /// with each line being an array of {text, highlight} objects.
12399 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12400 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12401 return;
12402 };
12403
12404 #[derive(Serialize)]
12405 struct Chunk<'a> {
12406 text: String,
12407 highlight: Option<&'a str>,
12408 }
12409
12410 let snapshot = buffer.read(cx).snapshot();
12411 let range = self
12412 .selected_text_range(false, cx)
12413 .and_then(|selection| {
12414 if selection.range.is_empty() {
12415 None
12416 } else {
12417 Some(selection.range)
12418 }
12419 })
12420 .unwrap_or_else(|| 0..snapshot.len());
12421
12422 let chunks = snapshot.chunks(range, true);
12423 let mut lines = Vec::new();
12424 let mut line: VecDeque<Chunk> = VecDeque::new();
12425
12426 let Some(style) = self.style.as_ref() else {
12427 return;
12428 };
12429
12430 for chunk in chunks {
12431 let highlight = chunk
12432 .syntax_highlight_id
12433 .and_then(|id| id.name(&style.syntax));
12434 let mut chunk_lines = chunk.text.split('\n').peekable();
12435 while let Some(text) = chunk_lines.next() {
12436 let mut merged_with_last_token = false;
12437 if let Some(last_token) = line.back_mut() {
12438 if last_token.highlight == highlight {
12439 last_token.text.push_str(text);
12440 merged_with_last_token = true;
12441 }
12442 }
12443
12444 if !merged_with_last_token {
12445 line.push_back(Chunk {
12446 text: text.into(),
12447 highlight,
12448 });
12449 }
12450
12451 if chunk_lines.peek().is_some() {
12452 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12453 line.pop_front();
12454 }
12455 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12456 line.pop_back();
12457 }
12458
12459 lines.push(mem::take(&mut line));
12460 }
12461 }
12462 }
12463
12464 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12465 return;
12466 };
12467 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12468 }
12469
12470 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
12471 self.request_autoscroll(Autoscroll::newest(), cx);
12472 let position = self.selections.newest_display(cx).start;
12473 mouse_context_menu::deploy_context_menu(self, None, position, cx);
12474 }
12475
12476 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12477 &self.inlay_hint_cache
12478 }
12479
12480 pub fn replay_insert_event(
12481 &mut self,
12482 text: &str,
12483 relative_utf16_range: Option<Range<isize>>,
12484 cx: &mut ViewContext<Self>,
12485 ) {
12486 if !self.input_enabled {
12487 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12488 return;
12489 }
12490 if let Some(relative_utf16_range) = relative_utf16_range {
12491 let selections = self.selections.all::<OffsetUtf16>(cx);
12492 self.change_selections(None, cx, |s| {
12493 let new_ranges = selections.into_iter().map(|range| {
12494 let start = OffsetUtf16(
12495 range
12496 .head()
12497 .0
12498 .saturating_add_signed(relative_utf16_range.start),
12499 );
12500 let end = OffsetUtf16(
12501 range
12502 .head()
12503 .0
12504 .saturating_add_signed(relative_utf16_range.end),
12505 );
12506 start..end
12507 });
12508 s.select_ranges(new_ranges);
12509 });
12510 }
12511
12512 self.handle_input(text, cx);
12513 }
12514
12515 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12516 let Some(provider) = self.semantics_provider.as_ref() else {
12517 return false;
12518 };
12519
12520 let mut supports = false;
12521 self.buffer().read(cx).for_each_buffer(|buffer| {
12522 supports |= provider.supports_inlay_hints(buffer, cx);
12523 });
12524 supports
12525 }
12526
12527 pub fn focus(&self, cx: &mut WindowContext) {
12528 cx.focus(&self.focus_handle)
12529 }
12530
12531 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12532 self.focus_handle.is_focused(cx)
12533 }
12534
12535 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12536 cx.emit(EditorEvent::Focused);
12537
12538 if let Some(descendant) = self
12539 .last_focused_descendant
12540 .take()
12541 .and_then(|descendant| descendant.upgrade())
12542 {
12543 cx.focus(&descendant);
12544 } else {
12545 if let Some(blame) = self.blame.as_ref() {
12546 blame.update(cx, GitBlame::focus)
12547 }
12548
12549 self.blink_manager.update(cx, BlinkManager::enable);
12550 self.show_cursor_names(cx);
12551 self.buffer.update(cx, |buffer, cx| {
12552 buffer.finalize_last_transaction(cx);
12553 if self.leader_peer_id.is_none() {
12554 buffer.set_active_selections(
12555 &self.selections.disjoint_anchors(),
12556 self.selections.line_mode,
12557 self.cursor_shape,
12558 cx,
12559 );
12560 }
12561 });
12562 }
12563 }
12564
12565 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12566 cx.emit(EditorEvent::FocusedIn)
12567 }
12568
12569 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12570 if event.blurred != self.focus_handle {
12571 self.last_focused_descendant = Some(event.blurred);
12572 }
12573 }
12574
12575 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12576 self.blink_manager.update(cx, BlinkManager::disable);
12577 self.buffer
12578 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12579
12580 if let Some(blame) = self.blame.as_ref() {
12581 blame.update(cx, GitBlame::blur)
12582 }
12583 if !self.hover_state.focused(cx) {
12584 hide_hover(self, cx);
12585 }
12586
12587 self.hide_context_menu(cx);
12588 cx.emit(EditorEvent::Blurred);
12589 cx.notify();
12590 }
12591
12592 pub fn register_action<A: Action>(
12593 &mut self,
12594 listener: impl Fn(&A, &mut WindowContext) + 'static,
12595 ) -> Subscription {
12596 let id = self.next_editor_action_id.post_inc();
12597 let listener = Arc::new(listener);
12598 self.editor_actions.borrow_mut().insert(
12599 id,
12600 Box::new(move |cx| {
12601 let cx = cx.window_context();
12602 let listener = listener.clone();
12603 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12604 let action = action.downcast_ref().unwrap();
12605 if phase == DispatchPhase::Bubble {
12606 listener(action, cx)
12607 }
12608 })
12609 }),
12610 );
12611
12612 let editor_actions = self.editor_actions.clone();
12613 Subscription::new(move || {
12614 editor_actions.borrow_mut().remove(&id);
12615 })
12616 }
12617
12618 pub fn file_header_size(&self) -> u32 {
12619 FILE_HEADER_HEIGHT
12620 }
12621
12622 pub fn revert(
12623 &mut self,
12624 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12625 cx: &mut ViewContext<Self>,
12626 ) {
12627 self.buffer().update(cx, |multi_buffer, cx| {
12628 for (buffer_id, changes) in revert_changes {
12629 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12630 buffer.update(cx, |buffer, cx| {
12631 buffer.edit(
12632 changes.into_iter().map(|(range, text)| {
12633 (range, text.to_string().map(Arc::<str>::from))
12634 }),
12635 None,
12636 cx,
12637 );
12638 });
12639 }
12640 }
12641 });
12642 self.change_selections(None, cx, |selections| selections.refresh());
12643 }
12644
12645 pub fn to_pixel_point(
12646 &mut self,
12647 source: multi_buffer::Anchor,
12648 editor_snapshot: &EditorSnapshot,
12649 cx: &mut ViewContext<Self>,
12650 ) -> Option<gpui::Point<Pixels>> {
12651 let source_point = source.to_display_point(editor_snapshot);
12652 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12653 }
12654
12655 pub fn display_to_pixel_point(
12656 &self,
12657 source: DisplayPoint,
12658 editor_snapshot: &EditorSnapshot,
12659 cx: &WindowContext,
12660 ) -> Option<gpui::Point<Pixels>> {
12661 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12662 let text_layout_details = self.text_layout_details(cx);
12663 let scroll_top = text_layout_details
12664 .scroll_anchor
12665 .scroll_position(editor_snapshot)
12666 .y;
12667
12668 if source.row().as_f32() < scroll_top.floor() {
12669 return None;
12670 }
12671 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12672 let source_y = line_height * (source.row().as_f32() - scroll_top);
12673 Some(gpui::Point::new(source_x, source_y))
12674 }
12675
12676 pub fn has_active_completions_menu(&self) -> bool {
12677 self.context_menu.read().as_ref().map_or(false, |menu| {
12678 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
12679 })
12680 }
12681
12682 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12683 self.addons
12684 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
12685 }
12686
12687 pub fn unregister_addon<T: Addon>(&mut self) {
12688 self.addons.remove(&std::any::TypeId::of::<T>());
12689 }
12690
12691 pub fn addon<T: Addon>(&self) -> Option<&T> {
12692 let type_id = std::any::TypeId::of::<T>();
12693 self.addons
12694 .get(&type_id)
12695 .and_then(|item| item.to_any().downcast_ref::<T>())
12696 }
12697
12698 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
12699 let text_layout_details = self.text_layout_details(cx);
12700 let style = &text_layout_details.editor_style;
12701 let font_id = cx.text_system().resolve_font(&style.text.font());
12702 let font_size = style.text.font_size.to_pixels(cx.rem_size());
12703 let line_height = style.text.line_height_in_pixels(cx.rem_size());
12704
12705 let em_width = cx
12706 .text_system()
12707 .typographic_bounds(font_id, font_size, 'm')
12708 .unwrap()
12709 .size
12710 .width;
12711
12712 gpui::Point::new(em_width, line_height)
12713 }
12714}
12715
12716fn get_unstaged_changes_for_buffers(
12717 project: &Model<Project>,
12718 buffers: impl IntoIterator<Item = Model<Buffer>>,
12719 cx: &mut ViewContext<Editor>,
12720) {
12721 let mut tasks = Vec::new();
12722 project.update(cx, |project, cx| {
12723 for buffer in buffers {
12724 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
12725 }
12726 });
12727 cx.spawn(|this, mut cx| async move {
12728 let change_sets = futures::future::join_all(tasks).await;
12729 this.update(&mut cx, |this, cx| {
12730 for change_set in change_sets {
12731 if let Some(change_set) = change_set.log_err() {
12732 this.diff_map.add_change_set(change_set, cx);
12733 }
12734 }
12735 })
12736 .ok();
12737 })
12738 .detach();
12739}
12740
12741fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
12742 let tab_size = tab_size.get() as usize;
12743 let mut width = offset;
12744
12745 for ch in text.chars() {
12746 width += if ch == '\t' {
12747 tab_size - (width % tab_size)
12748 } else {
12749 1
12750 };
12751 }
12752
12753 width - offset
12754}
12755
12756#[cfg(test)]
12757mod tests {
12758 use super::*;
12759
12760 #[test]
12761 fn test_string_size_with_expanded_tabs() {
12762 let nz = |val| NonZeroU32::new(val).unwrap();
12763 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
12764 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
12765 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
12766 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
12767 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
12768 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
12769 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
12770 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
12771 }
12772}
12773
12774/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
12775struct WordBreakingTokenizer<'a> {
12776 input: &'a str,
12777}
12778
12779impl<'a> WordBreakingTokenizer<'a> {
12780 fn new(input: &'a str) -> Self {
12781 Self { input }
12782 }
12783}
12784
12785fn is_char_ideographic(ch: char) -> bool {
12786 use unicode_script::Script::*;
12787 use unicode_script::UnicodeScript;
12788 matches!(ch.script(), Han | Tangut | Yi)
12789}
12790
12791fn is_grapheme_ideographic(text: &str) -> bool {
12792 text.chars().any(is_char_ideographic)
12793}
12794
12795fn is_grapheme_whitespace(text: &str) -> bool {
12796 text.chars().any(|x| x.is_whitespace())
12797}
12798
12799fn should_stay_with_preceding_ideograph(text: &str) -> bool {
12800 text.chars().next().map_or(false, |ch| {
12801 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
12802 })
12803}
12804
12805#[derive(PartialEq, Eq, Debug, Clone, Copy)]
12806struct WordBreakToken<'a> {
12807 token: &'a str,
12808 grapheme_len: usize,
12809 is_whitespace: bool,
12810}
12811
12812impl<'a> Iterator for WordBreakingTokenizer<'a> {
12813 /// Yields a span, the count of graphemes in the token, and whether it was
12814 /// whitespace. Note that it also breaks at word boundaries.
12815 type Item = WordBreakToken<'a>;
12816
12817 fn next(&mut self) -> Option<Self::Item> {
12818 use unicode_segmentation::UnicodeSegmentation;
12819 if self.input.is_empty() {
12820 return None;
12821 }
12822
12823 let mut iter = self.input.graphemes(true).peekable();
12824 let mut offset = 0;
12825 let mut graphemes = 0;
12826 if let Some(first_grapheme) = iter.next() {
12827 let is_whitespace = is_grapheme_whitespace(first_grapheme);
12828 offset += first_grapheme.len();
12829 graphemes += 1;
12830 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
12831 if let Some(grapheme) = iter.peek().copied() {
12832 if should_stay_with_preceding_ideograph(grapheme) {
12833 offset += grapheme.len();
12834 graphemes += 1;
12835 }
12836 }
12837 } else {
12838 let mut words = self.input[offset..].split_word_bound_indices().peekable();
12839 let mut next_word_bound = words.peek().copied();
12840 if next_word_bound.map_or(false, |(i, _)| i == 0) {
12841 next_word_bound = words.next();
12842 }
12843 while let Some(grapheme) = iter.peek().copied() {
12844 if next_word_bound.map_or(false, |(i, _)| i == offset) {
12845 break;
12846 };
12847 if is_grapheme_whitespace(grapheme) != is_whitespace {
12848 break;
12849 };
12850 offset += grapheme.len();
12851 graphemes += 1;
12852 iter.next();
12853 }
12854 }
12855 let token = &self.input[..offset];
12856 self.input = &self.input[offset..];
12857 if is_whitespace {
12858 Some(WordBreakToken {
12859 token: " ",
12860 grapheme_len: 1,
12861 is_whitespace: true,
12862 })
12863 } else {
12864 Some(WordBreakToken {
12865 token,
12866 grapheme_len: graphemes,
12867 is_whitespace: false,
12868 })
12869 }
12870 } else {
12871 None
12872 }
12873 }
12874}
12875
12876#[test]
12877fn test_word_breaking_tokenizer() {
12878 let tests: &[(&str, &[(&str, usize, bool)])] = &[
12879 ("", &[]),
12880 (" ", &[(" ", 1, true)]),
12881 ("Ʒ", &[("Ʒ", 1, false)]),
12882 ("Ǽ", &[("Ǽ", 1, false)]),
12883 ("⋑", &[("⋑", 1, false)]),
12884 ("⋑⋑", &[("⋑⋑", 2, false)]),
12885 (
12886 "原理，进而",
12887 &[
12888 ("原", 1, false),
12889 ("理，", 2, false),
12890 ("进", 1, false),
12891 ("而", 1, false),
12892 ],
12893 ),
12894 (
12895 "hello world",
12896 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
12897 ),
12898 (
12899 "hello, world",
12900 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
12901 ),
12902 (
12903 " hello world",
12904 &[
12905 (" ", 1, true),
12906 ("hello", 5, false),
12907 (" ", 1, true),
12908 ("world", 5, false),
12909 ],
12910 ),
12911 (
12912 "这是什么 \n 钢笔",
12913 &[
12914 ("这", 1, false),
12915 ("是", 1, false),
12916 ("什", 1, false),
12917 ("么", 1, false),
12918 (" ", 1, true),
12919 ("钢", 1, false),
12920 ("笔", 1, false),
12921 ],
12922 ),
12923 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
12924 ];
12925
12926 for (input, result) in tests {
12927 assert_eq!(
12928 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
12929 result
12930 .iter()
12931 .copied()
12932 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
12933 token,
12934 grapheme_len,
12935 is_whitespace,
12936 })
12937 .collect::<Vec<_>>()
12938 );
12939 }
12940}
12941
12942fn wrap_with_prefix(
12943 line_prefix: String,
12944 unwrapped_text: String,
12945 wrap_column: usize,
12946 tab_size: NonZeroU32,
12947) -> String {
12948 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
12949 let mut wrapped_text = String::new();
12950 let mut current_line = line_prefix.clone();
12951
12952 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
12953 let mut current_line_len = line_prefix_len;
12954 for WordBreakToken {
12955 token,
12956 grapheme_len,
12957 is_whitespace,
12958 } in tokenizer
12959 {
12960 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
12961 wrapped_text.push_str(current_line.trim_end());
12962 wrapped_text.push('\n');
12963 current_line.truncate(line_prefix.len());
12964 current_line_len = line_prefix_len;
12965 if !is_whitespace {
12966 current_line.push_str(token);
12967 current_line_len += grapheme_len;
12968 }
12969 } else if !is_whitespace {
12970 current_line.push_str(token);
12971 current_line_len += grapheme_len;
12972 } else if current_line_len != line_prefix_len {
12973 current_line.push(' ');
12974 current_line_len += 1;
12975 }
12976 }
12977
12978 if !current_line.is_empty() {
12979 wrapped_text.push_str(¤t_line);
12980 }
12981 wrapped_text
12982}
12983
12984#[test]
12985fn test_wrap_with_prefix() {
12986 assert_eq!(
12987 wrap_with_prefix(
12988 "# ".to_string(),
12989 "abcdefg".to_string(),
12990 4,
12991 NonZeroU32::new(4).unwrap()
12992 ),
12993 "# abcdefg"
12994 );
12995 assert_eq!(
12996 wrap_with_prefix(
12997 "".to_string(),
12998 "\thello world".to_string(),
12999 8,
13000 NonZeroU32::new(4).unwrap()
13001 ),
13002 "hello\nworld"
13003 );
13004 assert_eq!(
13005 wrap_with_prefix(
13006 "// ".to_string(),
13007 "xx \nyy zz aa bb cc".to_string(),
13008 12,
13009 NonZeroU32::new(4).unwrap()
13010 ),
13011 "// xx yy zz\n// aa bb cc"
13012 );
13013 assert_eq!(
13014 wrap_with_prefix(
13015 String::new(),
13016 "这是什么 \n 钢笔".to_string(),
13017 3,
13018 NonZeroU32::new(4).unwrap()
13019 ),
13020 "这是什\n么 钢\n笔"
13021 );
13022}
13023
13024fn hunks_for_selections(
13025 snapshot: &EditorSnapshot,
13026 selections: &[Selection<Point>],
13027) -> Vec<MultiBufferDiffHunk> {
13028 hunks_for_ranges(
13029 selections.iter().map(|selection| selection.range()),
13030 snapshot,
13031 )
13032}
13033
13034pub fn hunks_for_ranges(
13035 ranges: impl Iterator<Item = Range<Point>>,
13036 snapshot: &EditorSnapshot,
13037) -> Vec<MultiBufferDiffHunk> {
13038 let mut hunks = Vec::new();
13039 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13040 HashMap::default();
13041 for query_range in ranges {
13042 let query_rows =
13043 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
13044 for hunk in snapshot.diff_map.diff_hunks_in_range(
13045 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
13046 &snapshot.buffer_snapshot,
13047 ) {
13048 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13049 // when the caret is just above or just below the deleted hunk.
13050 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13051 let related_to_selection = if allow_adjacent {
13052 hunk.row_range.overlaps(&query_rows)
13053 || hunk.row_range.start == query_rows.end
13054 || hunk.row_range.end == query_rows.start
13055 } else {
13056 hunk.row_range.overlaps(&query_rows)
13057 };
13058 if related_to_selection {
13059 if !processed_buffer_rows
13060 .entry(hunk.buffer_id)
13061 .or_default()
13062 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13063 {
13064 continue;
13065 }
13066 hunks.push(hunk);
13067 }
13068 }
13069 }
13070
13071 hunks
13072}
13073
13074pub trait CollaborationHub {
13075 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13076 fn user_participant_indices<'a>(
13077 &self,
13078 cx: &'a AppContext,
13079 ) -> &'a HashMap<u64, ParticipantIndex>;
13080 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13081}
13082
13083impl CollaborationHub for Model<Project> {
13084 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13085 self.read(cx).collaborators()
13086 }
13087
13088 fn user_participant_indices<'a>(
13089 &self,
13090 cx: &'a AppContext,
13091 ) -> &'a HashMap<u64, ParticipantIndex> {
13092 self.read(cx).user_store().read(cx).participant_indices()
13093 }
13094
13095 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13096 let this = self.read(cx);
13097 let user_ids = this.collaborators().values().map(|c| c.user_id);
13098 this.user_store().read_with(cx, |user_store, cx| {
13099 user_store.participant_names(user_ids, cx)
13100 })
13101 }
13102}
13103
13104pub trait SemanticsProvider {
13105 fn hover(
13106 &self,
13107 buffer: &Model<Buffer>,
13108 position: text::Anchor,
13109 cx: &mut AppContext,
13110 ) -> Option<Task<Vec<project::Hover>>>;
13111
13112 fn inlay_hints(
13113 &self,
13114 buffer_handle: Model<Buffer>,
13115 range: Range<text::Anchor>,
13116 cx: &mut AppContext,
13117 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13118
13119 fn resolve_inlay_hint(
13120 &self,
13121 hint: InlayHint,
13122 buffer_handle: Model<Buffer>,
13123 server_id: LanguageServerId,
13124 cx: &mut AppContext,
13125 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13126
13127 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13128
13129 fn document_highlights(
13130 &self,
13131 buffer: &Model<Buffer>,
13132 position: text::Anchor,
13133 cx: &mut AppContext,
13134 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13135
13136 fn definitions(
13137 &self,
13138 buffer: &Model<Buffer>,
13139 position: text::Anchor,
13140 kind: GotoDefinitionKind,
13141 cx: &mut AppContext,
13142 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13143
13144 fn range_for_rename(
13145 &self,
13146 buffer: &Model<Buffer>,
13147 position: text::Anchor,
13148 cx: &mut AppContext,
13149 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13150
13151 fn perform_rename(
13152 &self,
13153 buffer: &Model<Buffer>,
13154 position: text::Anchor,
13155 new_name: String,
13156 cx: &mut AppContext,
13157 ) -> Option<Task<Result<ProjectTransaction>>>;
13158}
13159
13160pub trait CompletionProvider {
13161 fn completions(
13162 &self,
13163 buffer: &Model<Buffer>,
13164 buffer_position: text::Anchor,
13165 trigger: CompletionContext,
13166 cx: &mut ViewContext<Editor>,
13167 ) -> Task<Result<Vec<Completion>>>;
13168
13169 fn resolve_completions(
13170 &self,
13171 buffer: Model<Buffer>,
13172 completion_indices: Vec<usize>,
13173 completions: Arc<RwLock<Box<[Completion]>>>,
13174 cx: &mut ViewContext<Editor>,
13175 ) -> Task<Result<bool>>;
13176
13177 fn apply_additional_edits_for_completion(
13178 &self,
13179 buffer: Model<Buffer>,
13180 completion: Completion,
13181 push_to_history: bool,
13182 cx: &mut ViewContext<Editor>,
13183 ) -> Task<Result<Option<language::Transaction>>>;
13184
13185 fn is_completion_trigger(
13186 &self,
13187 buffer: &Model<Buffer>,
13188 position: language::Anchor,
13189 text: &str,
13190 trigger_in_words: bool,
13191 cx: &mut ViewContext<Editor>,
13192 ) -> bool;
13193
13194 fn sort_completions(&self) -> bool {
13195 true
13196 }
13197}
13198
13199pub trait CodeActionProvider {
13200 fn code_actions(
13201 &self,
13202 buffer: &Model<Buffer>,
13203 range: Range<text::Anchor>,
13204 cx: &mut WindowContext,
13205 ) -> Task<Result<Vec<CodeAction>>>;
13206
13207 fn apply_code_action(
13208 &self,
13209 buffer_handle: Model<Buffer>,
13210 action: CodeAction,
13211 excerpt_id: ExcerptId,
13212 push_to_history: bool,
13213 cx: &mut WindowContext,
13214 ) -> Task<Result<ProjectTransaction>>;
13215}
13216
13217impl CodeActionProvider for Model<Project> {
13218 fn code_actions(
13219 &self,
13220 buffer: &Model<Buffer>,
13221 range: Range<text::Anchor>,
13222 cx: &mut WindowContext,
13223 ) -> Task<Result<Vec<CodeAction>>> {
13224 self.update(cx, |project, cx| {
13225 project.code_actions(buffer, range, None, cx)
13226 })
13227 }
13228
13229 fn apply_code_action(
13230 &self,
13231 buffer_handle: Model<Buffer>,
13232 action: CodeAction,
13233 _excerpt_id: ExcerptId,
13234 push_to_history: bool,
13235 cx: &mut WindowContext,
13236 ) -> Task<Result<ProjectTransaction>> {
13237 self.update(cx, |project, cx| {
13238 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13239 })
13240 }
13241}
13242
13243fn snippet_completions(
13244 project: &Project,
13245 buffer: &Model<Buffer>,
13246 buffer_position: text::Anchor,
13247 cx: &mut AppContext,
13248) -> Task<Result<Vec<Completion>>> {
13249 let language = buffer.read(cx).language_at(buffer_position);
13250 let language_name = language.as_ref().map(|language| language.lsp_id());
13251 let snippet_store = project.snippets().read(cx);
13252 let snippets = snippet_store.snippets_for(language_name, cx);
13253
13254 if snippets.is_empty() {
13255 return Task::ready(Ok(vec![]));
13256 }
13257 let snapshot = buffer.read(cx).text_snapshot();
13258 let chars: String = snapshot
13259 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13260 .collect();
13261
13262 let scope = language.map(|language| language.default_scope());
13263 let executor = cx.background_executor().clone();
13264
13265 cx.background_executor().spawn(async move {
13266 let classifier = CharClassifier::new(scope).for_completion(true);
13267 let mut last_word = chars
13268 .chars()
13269 .take_while(|c| classifier.is_word(*c))
13270 .collect::<String>();
13271 last_word = last_word.chars().rev().collect();
13272
13273 if last_word.is_empty() {
13274 return Ok(vec![]);
13275 }
13276
13277 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13278 let to_lsp = |point: &text::Anchor| {
13279 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13280 point_to_lsp(end)
13281 };
13282 let lsp_end = to_lsp(&buffer_position);
13283
13284 let candidates = snippets
13285 .iter()
13286 .enumerate()
13287 .flat_map(|(ix, snippet)| {
13288 snippet
13289 .prefix
13290 .iter()
13291 .map(move |prefix| StringMatchCandidate::new(ix, prefix.clone()))
13292 })
13293 .collect::<Vec<StringMatchCandidate>>();
13294
13295 let mut matches = fuzzy::match_strings(
13296 &candidates,
13297 &last_word,
13298 last_word.chars().any(|c| c.is_uppercase()),
13299 100,
13300 &Default::default(),
13301 executor,
13302 )
13303 .await;
13304
13305 // Remove all candidates where the query's start does not match the start of any word in the candidate
13306 if let Some(query_start) = last_word.chars().next() {
13307 matches.retain(|string_match| {
13308 split_words(&string_match.string).any(|word| {
13309 // Check that the first codepoint of the word as lowercase matches the first
13310 // codepoint of the query as lowercase
13311 word.chars()
13312 .flat_map(|codepoint| codepoint.to_lowercase())
13313 .zip(query_start.to_lowercase())
13314 .all(|(word_cp, query_cp)| word_cp == query_cp)
13315 })
13316 });
13317 }
13318
13319 let matched_strings = matches
13320 .into_iter()
13321 .map(|m| m.string)
13322 .collect::<HashSet<_>>();
13323
13324 let result: Vec<Completion> = snippets
13325 .into_iter()
13326 .filter_map(|snippet| {
13327 let matching_prefix = snippet
13328 .prefix
13329 .iter()
13330 .find(|prefix| matched_strings.contains(*prefix))?;
13331 let start = as_offset - last_word.len();
13332 let start = snapshot.anchor_before(start);
13333 let range = start..buffer_position;
13334 let lsp_start = to_lsp(&start);
13335 let lsp_range = lsp::Range {
13336 start: lsp_start,
13337 end: lsp_end,
13338 };
13339 Some(Completion {
13340 old_range: range,
13341 new_text: snippet.body.clone(),
13342 label: CodeLabel {
13343 text: matching_prefix.clone(),
13344 runs: vec![],
13345 filter_range: 0..matching_prefix.len(),
13346 },
13347 server_id: LanguageServerId(usize::MAX),
13348 documentation: snippet.description.clone().map(Documentation::SingleLine),
13349 lsp_completion: lsp::CompletionItem {
13350 label: snippet.prefix.first().unwrap().clone(),
13351 kind: Some(CompletionItemKind::SNIPPET),
13352 label_details: snippet.description.as_ref().map(|description| {
13353 lsp::CompletionItemLabelDetails {
13354 detail: Some(description.clone()),
13355 description: None,
13356 }
13357 }),
13358 insert_text_format: Some(InsertTextFormat::SNIPPET),
13359 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13360 lsp::InsertReplaceEdit {
13361 new_text: snippet.body.clone(),
13362 insert: lsp_range,
13363 replace: lsp_range,
13364 },
13365 )),
13366 filter_text: Some(snippet.body.clone()),
13367 sort_text: Some(char::MAX.to_string()),
13368 ..Default::default()
13369 },
13370 confirm: None,
13371 })
13372 })
13373 .collect();
13374
13375 Ok(result)
13376 })
13377}
13378
13379impl CompletionProvider for Model<Project> {
13380 fn completions(
13381 &self,
13382 buffer: &Model<Buffer>,
13383 buffer_position: text::Anchor,
13384 options: CompletionContext,
13385 cx: &mut ViewContext<Editor>,
13386 ) -> Task<Result<Vec<Completion>>> {
13387 self.update(cx, |project, cx| {
13388 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13389 let project_completions = project.completions(buffer, buffer_position, options, cx);
13390 cx.background_executor().spawn(async move {
13391 let mut completions = project_completions.await?;
13392 let snippets_completions = snippets.await?;
13393 completions.extend(snippets_completions);
13394 Ok(completions)
13395 })
13396 })
13397 }
13398
13399 fn resolve_completions(
13400 &self,
13401 buffer: Model<Buffer>,
13402 completion_indices: Vec<usize>,
13403 completions: Arc<RwLock<Box<[Completion]>>>,
13404 cx: &mut ViewContext<Editor>,
13405 ) -> Task<Result<bool>> {
13406 self.update(cx, |project, cx| {
13407 project.resolve_completions(buffer, completion_indices, completions, cx)
13408 })
13409 }
13410
13411 fn apply_additional_edits_for_completion(
13412 &self,
13413 buffer: Model<Buffer>,
13414 completion: Completion,
13415 push_to_history: bool,
13416 cx: &mut ViewContext<Editor>,
13417 ) -> Task<Result<Option<language::Transaction>>> {
13418 self.update(cx, |project, cx| {
13419 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13420 })
13421 }
13422
13423 fn is_completion_trigger(
13424 &self,
13425 buffer: &Model<Buffer>,
13426 position: language::Anchor,
13427 text: &str,
13428 trigger_in_words: bool,
13429 cx: &mut ViewContext<Editor>,
13430 ) -> bool {
13431 let mut chars = text.chars();
13432 let char = if let Some(char) = chars.next() {
13433 char
13434 } else {
13435 return false;
13436 };
13437 if chars.next().is_some() {
13438 return false;
13439 }
13440
13441 let buffer = buffer.read(cx);
13442 let snapshot = buffer.snapshot();
13443 if !snapshot.settings_at(position, cx).show_completions_on_input {
13444 return false;
13445 }
13446 let classifier = snapshot.char_classifier_at(position).for_completion(true);
13447 if trigger_in_words && classifier.is_word(char) {
13448 return true;
13449 }
13450
13451 buffer.completion_triggers().contains(text)
13452 }
13453}
13454
13455impl SemanticsProvider for Model<Project> {
13456 fn hover(
13457 &self,
13458 buffer: &Model<Buffer>,
13459 position: text::Anchor,
13460 cx: &mut AppContext,
13461 ) -> Option<Task<Vec<project::Hover>>> {
13462 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13463 }
13464
13465 fn document_highlights(
13466 &self,
13467 buffer: &Model<Buffer>,
13468 position: text::Anchor,
13469 cx: &mut AppContext,
13470 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13471 Some(self.update(cx, |project, cx| {
13472 project.document_highlights(buffer, position, cx)
13473 }))
13474 }
13475
13476 fn definitions(
13477 &self,
13478 buffer: &Model<Buffer>,
13479 position: text::Anchor,
13480 kind: GotoDefinitionKind,
13481 cx: &mut AppContext,
13482 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13483 Some(self.update(cx, |project, cx| match kind {
13484 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13485 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13486 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13487 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13488 }))
13489 }
13490
13491 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13492 // TODO: make this work for remote projects
13493 self.read(cx)
13494 .language_servers_for_local_buffer(buffer.read(cx), cx)
13495 .any(
13496 |(_, server)| match server.capabilities().inlay_hint_provider {
13497 Some(lsp::OneOf::Left(enabled)) => enabled,
13498 Some(lsp::OneOf::Right(_)) => true,
13499 None => false,
13500 },
13501 )
13502 }
13503
13504 fn inlay_hints(
13505 &self,
13506 buffer_handle: Model<Buffer>,
13507 range: Range<text::Anchor>,
13508 cx: &mut AppContext,
13509 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13510 Some(self.update(cx, |project, cx| {
13511 project.inlay_hints(buffer_handle, range, cx)
13512 }))
13513 }
13514
13515 fn resolve_inlay_hint(
13516 &self,
13517 hint: InlayHint,
13518 buffer_handle: Model<Buffer>,
13519 server_id: LanguageServerId,
13520 cx: &mut AppContext,
13521 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13522 Some(self.update(cx, |project, cx| {
13523 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13524 }))
13525 }
13526
13527 fn range_for_rename(
13528 &self,
13529 buffer: &Model<Buffer>,
13530 position: text::Anchor,
13531 cx: &mut AppContext,
13532 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13533 Some(self.update(cx, |project, cx| {
13534 project.prepare_rename(buffer.clone(), position, cx)
13535 }))
13536 }
13537
13538 fn perform_rename(
13539 &self,
13540 buffer: &Model<Buffer>,
13541 position: text::Anchor,
13542 new_name: String,
13543 cx: &mut AppContext,
13544 ) -> Option<Task<Result<ProjectTransaction>>> {
13545 Some(self.update(cx, |project, cx| {
13546 project.perform_rename(buffer.clone(), position, new_name, cx)
13547 }))
13548 }
13549}
13550
13551fn inlay_hint_settings(
13552 location: Anchor,
13553 snapshot: &MultiBufferSnapshot,
13554 cx: &mut ViewContext<'_, Editor>,
13555) -> InlayHintSettings {
13556 let file = snapshot.file_at(location);
13557 let language = snapshot.language_at(location).map(|l| l.name());
13558 language_settings(language, file, cx).inlay_hints
13559}
13560
13561fn consume_contiguous_rows(
13562 contiguous_row_selections: &mut Vec<Selection<Point>>,
13563 selection: &Selection<Point>,
13564 display_map: &DisplaySnapshot,
13565 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
13566) -> (MultiBufferRow, MultiBufferRow) {
13567 contiguous_row_selections.push(selection.clone());
13568 let start_row = MultiBufferRow(selection.start.row);
13569 let mut end_row = ending_row(selection, display_map);
13570
13571 while let Some(next_selection) = selections.peek() {
13572 if next_selection.start.row <= end_row.0 {
13573 end_row = ending_row(next_selection, display_map);
13574 contiguous_row_selections.push(selections.next().unwrap().clone());
13575 } else {
13576 break;
13577 }
13578 }
13579 (start_row, end_row)
13580}
13581
13582fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13583 if next_selection.end.column > 0 || next_selection.is_empty() {
13584 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13585 } else {
13586 MultiBufferRow(next_selection.end.row)
13587 }
13588}
13589
13590impl EditorSnapshot {
13591 pub fn remote_selections_in_range<'a>(
13592 &'a self,
13593 range: &'a Range<Anchor>,
13594 collaboration_hub: &dyn CollaborationHub,
13595 cx: &'a AppContext,
13596 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13597 let participant_names = collaboration_hub.user_names(cx);
13598 let participant_indices = collaboration_hub.user_participant_indices(cx);
13599 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13600 let collaborators_by_replica_id = collaborators_by_peer_id
13601 .iter()
13602 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13603 .collect::<HashMap<_, _>>();
13604 self.buffer_snapshot
13605 .selections_in_range(range, false)
13606 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13607 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13608 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13609 let user_name = participant_names.get(&collaborator.user_id).cloned();
13610 Some(RemoteSelection {
13611 replica_id,
13612 selection,
13613 cursor_shape,
13614 line_mode,
13615 participant_index,
13616 peer_id: collaborator.peer_id,
13617 user_name,
13618 })
13619 })
13620 }
13621
13622 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13623 self.display_snapshot.buffer_snapshot.language_at(position)
13624 }
13625
13626 pub fn is_focused(&self) -> bool {
13627 self.is_focused
13628 }
13629
13630 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13631 self.placeholder_text.as_ref()
13632 }
13633
13634 pub fn scroll_position(&self) -> gpui::Point<f32> {
13635 self.scroll_anchor.scroll_position(&self.display_snapshot)
13636 }
13637
13638 fn gutter_dimensions(
13639 &self,
13640 font_id: FontId,
13641 font_size: Pixels,
13642 em_width: Pixels,
13643 em_advance: Pixels,
13644 max_line_number_width: Pixels,
13645 cx: &AppContext,
13646 ) -> GutterDimensions {
13647 if !self.show_gutter {
13648 return GutterDimensions::default();
13649 }
13650 let descent = cx.text_system().descent(font_id, font_size);
13651
13652 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13653 matches!(
13654 ProjectSettings::get_global(cx).git.git_gutter,
13655 Some(GitGutterSetting::TrackedFiles)
13656 )
13657 });
13658 let gutter_settings = EditorSettings::get_global(cx).gutter;
13659 let show_line_numbers = self
13660 .show_line_numbers
13661 .unwrap_or(gutter_settings.line_numbers);
13662 let line_gutter_width = if show_line_numbers {
13663 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13664 let min_width_for_number_on_gutter = em_advance * 4.0;
13665 max_line_number_width.max(min_width_for_number_on_gutter)
13666 } else {
13667 0.0.into()
13668 };
13669
13670 let show_code_actions = self
13671 .show_code_actions
13672 .unwrap_or(gutter_settings.code_actions);
13673
13674 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13675
13676 let git_blame_entries_width =
13677 self.git_blame_gutter_max_author_length
13678 .map(|max_author_length| {
13679 // Length of the author name, but also space for the commit hash,
13680 // the spacing and the timestamp.
13681 let max_char_count = max_author_length
13682 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13683 + 7 // length of commit sha
13684 + 14 // length of max relative timestamp ("60 minutes ago")
13685 + 4; // gaps and margins
13686
13687 em_advance * max_char_count
13688 });
13689
13690 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13691 left_padding += if show_code_actions || show_runnables {
13692 em_width * 3.0
13693 } else if show_git_gutter && show_line_numbers {
13694 em_width * 2.0
13695 } else if show_git_gutter || show_line_numbers {
13696 em_width
13697 } else {
13698 px(0.)
13699 };
13700
13701 let right_padding = if gutter_settings.folds && show_line_numbers {
13702 em_width * 4.0
13703 } else if gutter_settings.folds {
13704 em_width * 3.0
13705 } else if show_line_numbers {
13706 em_width
13707 } else {
13708 px(0.)
13709 };
13710
13711 GutterDimensions {
13712 left_padding,
13713 right_padding,
13714 width: line_gutter_width + left_padding + right_padding,
13715 margin: -descent,
13716 git_blame_entries_width,
13717 }
13718 }
13719
13720 pub fn render_crease_toggle(
13721 &self,
13722 buffer_row: MultiBufferRow,
13723 row_contains_cursor: bool,
13724 editor: View<Editor>,
13725 cx: &mut WindowContext,
13726 ) -> Option<AnyElement> {
13727 let folded = self.is_line_folded(buffer_row);
13728 let mut is_foldable = false;
13729
13730 if let Some(crease) = self
13731 .crease_snapshot
13732 .query_row(buffer_row, &self.buffer_snapshot)
13733 {
13734 is_foldable = true;
13735 match crease {
13736 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
13737 if let Some(render_toggle) = render_toggle {
13738 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
13739 if folded {
13740 editor.update(cx, |editor, cx| {
13741 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
13742 });
13743 } else {
13744 editor.update(cx, |editor, cx| {
13745 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
13746 });
13747 }
13748 });
13749 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
13750 }
13751 }
13752 }
13753 }
13754
13755 is_foldable |= self.starts_indent(buffer_row);
13756
13757 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
13758 Some(
13759 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
13760 .selected(folded)
13761 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
13762 if folded {
13763 this.unfold_at(&UnfoldAt { buffer_row }, cx);
13764 } else {
13765 this.fold_at(&FoldAt { buffer_row }, cx);
13766 }
13767 }))
13768 .into_any_element(),
13769 )
13770 } else {
13771 None
13772 }
13773 }
13774
13775 pub fn render_crease_trailer(
13776 &self,
13777 buffer_row: MultiBufferRow,
13778 cx: &mut WindowContext,
13779 ) -> Option<AnyElement> {
13780 let folded = self.is_line_folded(buffer_row);
13781 if let Crease::Inline { render_trailer, .. } = self
13782 .crease_snapshot
13783 .query_row(buffer_row, &self.buffer_snapshot)?
13784 {
13785 let render_trailer = render_trailer.as_ref()?;
13786 Some(render_trailer(buffer_row, folded, cx))
13787 } else {
13788 None
13789 }
13790 }
13791}
13792
13793impl Deref for EditorSnapshot {
13794 type Target = DisplaySnapshot;
13795
13796 fn deref(&self) -> &Self::Target {
13797 &self.display_snapshot
13798 }
13799}
13800
13801#[derive(Clone, Debug, PartialEq, Eq)]
13802pub enum EditorEvent {
13803 InputIgnored {
13804 text: Arc<str>,
13805 },
13806 InputHandled {
13807 utf16_range_to_replace: Option<Range<isize>>,
13808 text: Arc<str>,
13809 },
13810 ExcerptsAdded {
13811 buffer: Model<Buffer>,
13812 predecessor: ExcerptId,
13813 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
13814 },
13815 ExcerptsRemoved {
13816 ids: Vec<ExcerptId>,
13817 },
13818 ExcerptsEdited {
13819 ids: Vec<ExcerptId>,
13820 },
13821 ExcerptsExpanded {
13822 ids: Vec<ExcerptId>,
13823 },
13824 BufferEdited,
13825 Edited {
13826 transaction_id: clock::Lamport,
13827 },
13828 Reparsed(BufferId),
13829 Focused,
13830 FocusedIn,
13831 Blurred,
13832 DirtyChanged,
13833 Saved,
13834 TitleChanged,
13835 DiffBaseChanged,
13836 SelectionsChanged {
13837 local: bool,
13838 },
13839 ScrollPositionChanged {
13840 local: bool,
13841 autoscroll: bool,
13842 },
13843 Closed,
13844 TransactionUndone {
13845 transaction_id: clock::Lamport,
13846 },
13847 TransactionBegun {
13848 transaction_id: clock::Lamport,
13849 },
13850 Reloaded,
13851 CursorShapeChanged,
13852}
13853
13854impl EventEmitter<EditorEvent> for Editor {}
13855
13856impl FocusableView for Editor {
13857 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
13858 self.focus_handle.clone()
13859 }
13860}
13861
13862impl Render for Editor {
13863 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
13864 let settings = ThemeSettings::get_global(cx);
13865
13866 let mut text_style = match self.mode {
13867 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
13868 color: cx.theme().colors().editor_foreground,
13869 font_family: settings.ui_font.family.clone(),
13870 font_features: settings.ui_font.features.clone(),
13871 font_fallbacks: settings.ui_font.fallbacks.clone(),
13872 font_size: rems(0.875).into(),
13873 font_weight: settings.ui_font.weight,
13874 line_height: relative(settings.buffer_line_height.value()),
13875 ..Default::default()
13876 },
13877 EditorMode::Full => TextStyle {
13878 color: cx.theme().colors().editor_foreground,
13879 font_family: settings.buffer_font.family.clone(),
13880 font_features: settings.buffer_font.features.clone(),
13881 font_fallbacks: settings.buffer_font.fallbacks.clone(),
13882 font_size: settings.buffer_font_size(cx).into(),
13883 font_weight: settings.buffer_font.weight,
13884 line_height: relative(settings.buffer_line_height.value()),
13885 ..Default::default()
13886 },
13887 };
13888 if let Some(text_style_refinement) = &self.text_style_refinement {
13889 text_style.refine(text_style_refinement)
13890 }
13891
13892 let background = match self.mode {
13893 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
13894 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
13895 EditorMode::Full => cx.theme().colors().editor_background,
13896 };
13897
13898 EditorElement::new(
13899 cx.view(),
13900 EditorStyle {
13901 background,
13902 local_player: cx.theme().players().local(),
13903 text: text_style,
13904 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
13905 syntax: cx.theme().syntax().clone(),
13906 status: cx.theme().status().clone(),
13907 inlay_hints_style: make_inlay_hints_style(cx),
13908 suggestions_style: HighlightStyle {
13909 color: Some(cx.theme().status().predictive),
13910 ..HighlightStyle::default()
13911 },
13912 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
13913 },
13914 )
13915 }
13916}
13917
13918impl ViewInputHandler for Editor {
13919 fn text_for_range(
13920 &mut self,
13921 range_utf16: Range<usize>,
13922 adjusted_range: &mut Option<Range<usize>>,
13923 cx: &mut ViewContext<Self>,
13924 ) -> Option<String> {
13925 let snapshot = self.buffer.read(cx).read(cx);
13926 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
13927 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
13928 if (start.0..end.0) != range_utf16 {
13929 adjusted_range.replace(start.0..end.0);
13930 }
13931 Some(snapshot.text_for_range(start..end).collect())
13932 }
13933
13934 fn selected_text_range(
13935 &mut self,
13936 ignore_disabled_input: bool,
13937 cx: &mut ViewContext<Self>,
13938 ) -> Option<UTF16Selection> {
13939 // Prevent the IME menu from appearing when holding down an alphabetic key
13940 // while input is disabled.
13941 if !ignore_disabled_input && !self.input_enabled {
13942 return None;
13943 }
13944
13945 let selection = self.selections.newest::<OffsetUtf16>(cx);
13946 let range = selection.range();
13947
13948 Some(UTF16Selection {
13949 range: range.start.0..range.end.0,
13950 reversed: selection.reversed,
13951 })
13952 }
13953
13954 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
13955 let snapshot = self.buffer.read(cx).read(cx);
13956 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
13957 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
13958 }
13959
13960 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
13961 self.clear_highlights::<InputComposition>(cx);
13962 self.ime_transaction.take();
13963 }
13964
13965 fn replace_text_in_range(
13966 &mut self,
13967 range_utf16: Option<Range<usize>>,
13968 text: &str,
13969 cx: &mut ViewContext<Self>,
13970 ) {
13971 if !self.input_enabled {
13972 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13973 return;
13974 }
13975
13976 self.transact(cx, |this, cx| {
13977 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
13978 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13979 Some(this.selection_replacement_ranges(range_utf16, cx))
13980 } else {
13981 this.marked_text_ranges(cx)
13982 };
13983
13984 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
13985 let newest_selection_id = this.selections.newest_anchor().id;
13986 this.selections
13987 .all::<OffsetUtf16>(cx)
13988 .iter()
13989 .zip(ranges_to_replace.iter())
13990 .find_map(|(selection, range)| {
13991 if selection.id == newest_selection_id {
13992 Some(
13993 (range.start.0 as isize - selection.head().0 as isize)
13994 ..(range.end.0 as isize - selection.head().0 as isize),
13995 )
13996 } else {
13997 None
13998 }
13999 })
14000 });
14001
14002 cx.emit(EditorEvent::InputHandled {
14003 utf16_range_to_replace: range_to_replace,
14004 text: text.into(),
14005 });
14006
14007 if let Some(new_selected_ranges) = new_selected_ranges {
14008 this.change_selections(None, cx, |selections| {
14009 selections.select_ranges(new_selected_ranges)
14010 });
14011 this.backspace(&Default::default(), cx);
14012 }
14013
14014 this.handle_input(text, cx);
14015 });
14016
14017 if let Some(transaction) = self.ime_transaction {
14018 self.buffer.update(cx, |buffer, cx| {
14019 buffer.group_until_transaction(transaction, cx);
14020 });
14021 }
14022
14023 self.unmark_text(cx);
14024 }
14025
14026 fn replace_and_mark_text_in_range(
14027 &mut self,
14028 range_utf16: Option<Range<usize>>,
14029 text: &str,
14030 new_selected_range_utf16: Option<Range<usize>>,
14031 cx: &mut ViewContext<Self>,
14032 ) {
14033 if !self.input_enabled {
14034 return;
14035 }
14036
14037 let transaction = self.transact(cx, |this, cx| {
14038 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14039 let snapshot = this.buffer.read(cx).read(cx);
14040 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14041 for marked_range in &mut marked_ranges {
14042 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14043 marked_range.start.0 += relative_range_utf16.start;
14044 marked_range.start =
14045 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14046 marked_range.end =
14047 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14048 }
14049 }
14050 Some(marked_ranges)
14051 } else if let Some(range_utf16) = range_utf16 {
14052 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14053 Some(this.selection_replacement_ranges(range_utf16, cx))
14054 } else {
14055 None
14056 };
14057
14058 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14059 let newest_selection_id = this.selections.newest_anchor().id;
14060 this.selections
14061 .all::<OffsetUtf16>(cx)
14062 .iter()
14063 .zip(ranges_to_replace.iter())
14064 .find_map(|(selection, range)| {
14065 if selection.id == newest_selection_id {
14066 Some(
14067 (range.start.0 as isize - selection.head().0 as isize)
14068 ..(range.end.0 as isize - selection.head().0 as isize),
14069 )
14070 } else {
14071 None
14072 }
14073 })
14074 });
14075
14076 cx.emit(EditorEvent::InputHandled {
14077 utf16_range_to_replace: range_to_replace,
14078 text: text.into(),
14079 });
14080
14081 if let Some(ranges) = ranges_to_replace {
14082 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14083 }
14084
14085 let marked_ranges = {
14086 let snapshot = this.buffer.read(cx).read(cx);
14087 this.selections
14088 .disjoint_anchors()
14089 .iter()
14090 .map(|selection| {
14091 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14092 })
14093 .collect::<Vec<_>>()
14094 };
14095
14096 if text.is_empty() {
14097 this.unmark_text(cx);
14098 } else {
14099 this.highlight_text::<InputComposition>(
14100 marked_ranges.clone(),
14101 HighlightStyle {
14102 underline: Some(UnderlineStyle {
14103 thickness: px(1.),
14104 color: None,
14105 wavy: false,
14106 }),
14107 ..Default::default()
14108 },
14109 cx,
14110 );
14111 }
14112
14113 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14114 let use_autoclose = this.use_autoclose;
14115 let use_auto_surround = this.use_auto_surround;
14116 this.set_use_autoclose(false);
14117 this.set_use_auto_surround(false);
14118 this.handle_input(text, cx);
14119 this.set_use_autoclose(use_autoclose);
14120 this.set_use_auto_surround(use_auto_surround);
14121
14122 if let Some(new_selected_range) = new_selected_range_utf16 {
14123 let snapshot = this.buffer.read(cx).read(cx);
14124 let new_selected_ranges = marked_ranges
14125 .into_iter()
14126 .map(|marked_range| {
14127 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14128 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14129 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14130 snapshot.clip_offset_utf16(new_start, Bias::Left)
14131 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14132 })
14133 .collect::<Vec<_>>();
14134
14135 drop(snapshot);
14136 this.change_selections(None, cx, |selections| {
14137 selections.select_ranges(new_selected_ranges)
14138 });
14139 }
14140 });
14141
14142 self.ime_transaction = self.ime_transaction.or(transaction);
14143 if let Some(transaction) = self.ime_transaction {
14144 self.buffer.update(cx, |buffer, cx| {
14145 buffer.group_until_transaction(transaction, cx);
14146 });
14147 }
14148
14149 if self.text_highlights::<InputComposition>(cx).is_none() {
14150 self.ime_transaction.take();
14151 }
14152 }
14153
14154 fn bounds_for_range(
14155 &mut self,
14156 range_utf16: Range<usize>,
14157 element_bounds: gpui::Bounds<Pixels>,
14158 cx: &mut ViewContext<Self>,
14159 ) -> Option<gpui::Bounds<Pixels>> {
14160 let text_layout_details = self.text_layout_details(cx);
14161 let gpui::Point {
14162 x: em_width,
14163 y: line_height,
14164 } = self.character_size(cx);
14165
14166 let snapshot = self.snapshot(cx);
14167 let scroll_position = snapshot.scroll_position();
14168 let scroll_left = scroll_position.x * em_width;
14169
14170 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14171 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14172 + self.gutter_dimensions.width
14173 + self.gutter_dimensions.margin;
14174 let y = line_height * (start.row().as_f32() - scroll_position.y);
14175
14176 Some(Bounds {
14177 origin: element_bounds.origin + point(x, y),
14178 size: size(em_width, line_height),
14179 })
14180 }
14181}
14182
14183trait SelectionExt {
14184 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14185 fn spanned_rows(
14186 &self,
14187 include_end_if_at_line_start: bool,
14188 map: &DisplaySnapshot,
14189 ) -> Range<MultiBufferRow>;
14190}
14191
14192impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14193 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14194 let start = self
14195 .start
14196 .to_point(&map.buffer_snapshot)
14197 .to_display_point(map);
14198 let end = self
14199 .end
14200 .to_point(&map.buffer_snapshot)
14201 .to_display_point(map);
14202 if self.reversed {
14203 end..start
14204 } else {
14205 start..end
14206 }
14207 }
14208
14209 fn spanned_rows(
14210 &self,
14211 include_end_if_at_line_start: bool,
14212 map: &DisplaySnapshot,
14213 ) -> Range<MultiBufferRow> {
14214 let start = self.start.to_point(&map.buffer_snapshot);
14215 let mut end = self.end.to_point(&map.buffer_snapshot);
14216 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14217 end.row -= 1;
14218 }
14219
14220 let buffer_start = map.prev_line_boundary(start).0;
14221 let buffer_end = map.next_line_boundary(end).0;
14222 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14223 }
14224}
14225
14226impl<T: InvalidationRegion> InvalidationStack<T> {
14227 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14228 where
14229 S: Clone + ToOffset,
14230 {
14231 while let Some(region) = self.last() {
14232 let all_selections_inside_invalidation_ranges =
14233 if selections.len() == region.ranges().len() {
14234 selections
14235 .iter()
14236 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14237 .all(|(selection, invalidation_range)| {
14238 let head = selection.head().to_offset(buffer);
14239 invalidation_range.start <= head && invalidation_range.end >= head
14240 })
14241 } else {
14242 false
14243 };
14244
14245 if all_selections_inside_invalidation_ranges {
14246 break;
14247 } else {
14248 self.pop();
14249 }
14250 }
14251 }
14252}
14253
14254impl<T> Default for InvalidationStack<T> {
14255 fn default() -> Self {
14256 Self(Default::default())
14257 }
14258}
14259
14260impl<T> Deref for InvalidationStack<T> {
14261 type Target = Vec<T>;
14262
14263 fn deref(&self) -> &Self::Target {
14264 &self.0
14265 }
14266}
14267
14268impl<T> DerefMut for InvalidationStack<T> {
14269 fn deref_mut(&mut self) -> &mut Self::Target {
14270 &mut self.0
14271 }
14272}
14273
14274impl InvalidationRegion for SnippetState {
14275 fn ranges(&self) -> &[Range<Anchor>] {
14276 &self.ranges[self.active_index]
14277 }
14278}
14279
14280pub fn diagnostic_block_renderer(
14281 diagnostic: Diagnostic,
14282 max_message_rows: Option<u8>,
14283 allow_closing: bool,
14284 _is_valid: bool,
14285) -> RenderBlock {
14286 let (text_without_backticks, code_ranges) =
14287 highlight_diagnostic_message(&diagnostic, max_message_rows);
14288
14289 Arc::new(move |cx: &mut BlockContext| {
14290 let group_id: SharedString = cx.block_id.to_string().into();
14291
14292 let mut text_style = cx.text_style().clone();
14293 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14294 let theme_settings = ThemeSettings::get_global(cx);
14295 text_style.font_family = theme_settings.buffer_font.family.clone();
14296 text_style.font_style = theme_settings.buffer_font.style;
14297 text_style.font_features = theme_settings.buffer_font.features.clone();
14298 text_style.font_weight = theme_settings.buffer_font.weight;
14299
14300 let multi_line_diagnostic = diagnostic.message.contains('\n');
14301
14302 let buttons = |diagnostic: &Diagnostic| {
14303 if multi_line_diagnostic {
14304 v_flex()
14305 } else {
14306 h_flex()
14307 }
14308 .when(allow_closing, |div| {
14309 div.children(diagnostic.is_primary.then(|| {
14310 IconButton::new("close-block", IconName::XCircle)
14311 .icon_color(Color::Muted)
14312 .size(ButtonSize::Compact)
14313 .style(ButtonStyle::Transparent)
14314 .visible_on_hover(group_id.clone())
14315 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14316 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14317 }))
14318 })
14319 .child(
14320 IconButton::new("copy-block", IconName::Copy)
14321 .icon_color(Color::Muted)
14322 .size(ButtonSize::Compact)
14323 .style(ButtonStyle::Transparent)
14324 .visible_on_hover(group_id.clone())
14325 .on_click({
14326 let message = diagnostic.message.clone();
14327 move |_click, cx| {
14328 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14329 }
14330 })
14331 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14332 )
14333 };
14334
14335 let icon_size = buttons(&diagnostic)
14336 .into_any_element()
14337 .layout_as_root(AvailableSpace::min_size(), cx);
14338
14339 h_flex()
14340 .id(cx.block_id)
14341 .group(group_id.clone())
14342 .relative()
14343 .size_full()
14344 .block_mouse_down()
14345 .pl(cx.gutter_dimensions.width)
14346 .w(cx.max_width - cx.gutter_dimensions.full_width())
14347 .child(
14348 div()
14349 .flex()
14350 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14351 .flex_shrink(),
14352 )
14353 .child(buttons(&diagnostic))
14354 .child(div().flex().flex_shrink_0().child(
14355 StyledText::new(text_without_backticks.clone()).with_highlights(
14356 &text_style,
14357 code_ranges.iter().map(|range| {
14358 (
14359 range.clone(),
14360 HighlightStyle {
14361 font_weight: Some(FontWeight::BOLD),
14362 ..Default::default()
14363 },
14364 )
14365 }),
14366 ),
14367 ))
14368 .into_any_element()
14369 })
14370}
14371
14372pub fn highlight_diagnostic_message(
14373 diagnostic: &Diagnostic,
14374 mut max_message_rows: Option<u8>,
14375) -> (SharedString, Vec<Range<usize>>) {
14376 let mut text_without_backticks = String::new();
14377 let mut code_ranges = Vec::new();
14378
14379 if let Some(source) = &diagnostic.source {
14380 text_without_backticks.push_str(source);
14381 code_ranges.push(0..source.len());
14382 text_without_backticks.push_str(": ");
14383 }
14384
14385 let mut prev_offset = 0;
14386 let mut in_code_block = false;
14387 let has_row_limit = max_message_rows.is_some();
14388 let mut newline_indices = diagnostic
14389 .message
14390 .match_indices('\n')
14391 .filter(|_| has_row_limit)
14392 .map(|(ix, _)| ix)
14393 .fuse()
14394 .peekable();
14395
14396 for (quote_ix, _) in diagnostic
14397 .message
14398 .match_indices('`')
14399 .chain([(diagnostic.message.len(), "")])
14400 {
14401 let mut first_newline_ix = None;
14402 let mut last_newline_ix = None;
14403 while let Some(newline_ix) = newline_indices.peek() {
14404 if *newline_ix < quote_ix {
14405 if first_newline_ix.is_none() {
14406 first_newline_ix = Some(*newline_ix);
14407 }
14408 last_newline_ix = Some(*newline_ix);
14409
14410 if let Some(rows_left) = &mut max_message_rows {
14411 if *rows_left == 0 {
14412 break;
14413 } else {
14414 *rows_left -= 1;
14415 }
14416 }
14417 let _ = newline_indices.next();
14418 } else {
14419 break;
14420 }
14421 }
14422 let prev_len = text_without_backticks.len();
14423 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14424 text_without_backticks.push_str(new_text);
14425 if in_code_block {
14426 code_ranges.push(prev_len..text_without_backticks.len());
14427 }
14428 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14429 in_code_block = !in_code_block;
14430 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14431 text_without_backticks.push_str("...");
14432 break;
14433 }
14434 }
14435
14436 (text_without_backticks.into(), code_ranges)
14437}
14438
14439fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14440 match severity {
14441 DiagnosticSeverity::ERROR => colors.error,
14442 DiagnosticSeverity::WARNING => colors.warning,
14443 DiagnosticSeverity::INFORMATION => colors.info,
14444 DiagnosticSeverity::HINT => colors.info,
14445 _ => colors.ignored,
14446 }
14447}
14448
14449pub fn styled_runs_for_code_label<'a>(
14450 label: &'a CodeLabel,
14451 syntax_theme: &'a theme::SyntaxTheme,
14452) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14453 let fade_out = HighlightStyle {
14454 fade_out: Some(0.35),
14455 ..Default::default()
14456 };
14457
14458 let mut prev_end = label.filter_range.end;
14459 label
14460 .runs
14461 .iter()
14462 .enumerate()
14463 .flat_map(move |(ix, (range, highlight_id))| {
14464 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14465 style
14466 } else {
14467 return Default::default();
14468 };
14469 let mut muted_style = style;
14470 muted_style.highlight(fade_out);
14471
14472 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14473 if range.start >= label.filter_range.end {
14474 if range.start > prev_end {
14475 runs.push((prev_end..range.start, fade_out));
14476 }
14477 runs.push((range.clone(), muted_style));
14478 } else if range.end <= label.filter_range.end {
14479 runs.push((range.clone(), style));
14480 } else {
14481 runs.push((range.start..label.filter_range.end, style));
14482 runs.push((label.filter_range.end..range.end, muted_style));
14483 }
14484 prev_end = cmp::max(prev_end, range.end);
14485
14486 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14487 runs.push((prev_end..label.text.len(), fade_out));
14488 }
14489
14490 runs
14491 })
14492}
14493
14494pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14495 let mut prev_index = 0;
14496 let mut prev_codepoint: Option<char> = None;
14497 text.char_indices()
14498 .chain([(text.len(), '\0')])
14499 .filter_map(move |(index, codepoint)| {
14500 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14501 let is_boundary = index == text.len()
14502 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14503 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14504 if is_boundary {
14505 let chunk = &text[prev_index..index];
14506 prev_index = index;
14507 Some(chunk)
14508 } else {
14509 None
14510 }
14511 })
14512}
14513
14514pub trait RangeToAnchorExt: Sized {
14515 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14516
14517 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14518 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14519 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14520 }
14521}
14522
14523impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14524 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14525 let start_offset = self.start.to_offset(snapshot);
14526 let end_offset = self.end.to_offset(snapshot);
14527 if start_offset == end_offset {
14528 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14529 } else {
14530 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14531 }
14532 }
14533}
14534
14535pub trait RowExt {
14536 fn as_f32(&self) -> f32;
14537
14538 fn next_row(&self) -> Self;
14539
14540 fn previous_row(&self) -> Self;
14541
14542 fn minus(&self, other: Self) -> u32;
14543}
14544
14545impl RowExt for DisplayRow {
14546 fn as_f32(&self) -> f32 {
14547 self.0 as f32
14548 }
14549
14550 fn next_row(&self) -> Self {
14551 Self(self.0 + 1)
14552 }
14553
14554 fn previous_row(&self) -> Self {
14555 Self(self.0.saturating_sub(1))
14556 }
14557
14558 fn minus(&self, other: Self) -> u32 {
14559 self.0 - other.0
14560 }
14561}
14562
14563impl RowExt for MultiBufferRow {
14564 fn as_f32(&self) -> f32 {
14565 self.0 as f32
14566 }
14567
14568 fn next_row(&self) -> Self {
14569 Self(self.0 + 1)
14570 }
14571
14572 fn previous_row(&self) -> Self {
14573 Self(self.0.saturating_sub(1))
14574 }
14575
14576 fn minus(&self, other: Self) -> u32 {
14577 self.0 - other.0
14578 }
14579}
14580
14581trait RowRangeExt {
14582 type Row;
14583
14584 fn len(&self) -> usize;
14585
14586 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14587}
14588
14589impl RowRangeExt for Range<MultiBufferRow> {
14590 type Row = MultiBufferRow;
14591
14592 fn len(&self) -> usize {
14593 (self.end.0 - self.start.0) as usize
14594 }
14595
14596 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14597 (self.start.0..self.end.0).map(MultiBufferRow)
14598 }
14599}
14600
14601impl RowRangeExt for Range<DisplayRow> {
14602 type Row = DisplayRow;
14603
14604 fn len(&self) -> usize {
14605 (self.end.0 - self.start.0) as usize
14606 }
14607
14608 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14609 (self.start.0..self.end.0).map(DisplayRow)
14610 }
14611}
14612
14613fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14614 if hunk.diff_base_byte_range.is_empty() {
14615 DiffHunkStatus::Added
14616 } else if hunk.row_range.is_empty() {
14617 DiffHunkStatus::Removed
14618 } else {
14619 DiffHunkStatus::Modified
14620 }
14621}
14622
14623/// If select range has more than one line, we
14624/// just point the cursor to range.start.
14625fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14626 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14627 range
14628 } else {
14629 range.start..range.start
14630 }
14631}
14632
14633pub struct KillRing(ClipboardItem);
14634impl Global for KillRing {}
14635
14636const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);