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 CompletionEntry, 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 project::{
131 buffer_store::BufferChangeSet,
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 InlineCompletion(usize),
263 Hint(usize),
264}
265
266impl InlayId {
267 fn id(&self) -> usize {
268 match self {
269 Self::InlineCompletion(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 inline_completion_styles: InlineCompletionStyles,
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 inline_completion_styles: InlineCompletionStyles {
426 insertion: HighlightStyle::default(),
427 whitespace: HighlightStyle::default(),
428 },
429 unnecessary_code_fade: Default::default(),
430 }
431 }
432}
433
434pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
435 let show_background = language_settings::language_settings(None, None, cx)
436 .inlay_hints
437 .show_background;
438
439 HighlightStyle {
440 color: Some(cx.theme().status().hint),
441 background_color: show_background.then(|| cx.theme().status().hint_background),
442 ..HighlightStyle::default()
443 }
444}
445
446pub fn make_suggestion_styles(cx: &WindowContext) -> InlineCompletionStyles {
447 InlineCompletionStyles {
448 insertion: HighlightStyle {
449 color: Some(cx.theme().status().predictive),
450 ..HighlightStyle::default()
451 },
452 whitespace: HighlightStyle {
453 background_color: Some(cx.theme().status().created_background),
454 ..HighlightStyle::default()
455 },
456 }
457}
458
459type CompletionId = usize;
460
461#[derive(Debug, Clone)]
462struct InlineCompletionMenuHint {
463 provider_name: &'static str,
464 text: InlineCompletionText,
465}
466
467#[derive(Clone, Debug)]
468enum InlineCompletionText {
469 Move(SharedString),
470 Edit {
471 text: SharedString,
472 highlights: Vec<(Range<usize>, HighlightStyle)>,
473 },
474}
475
476enum InlineCompletion {
477 Edit(Vec<(Range<Anchor>, String)>),
478 Move(Anchor),
479}
480
481struct InlineCompletionState {
482 inlay_ids: Vec<InlayId>,
483 completion: InlineCompletion,
484 invalidation_range: Range<Anchor>,
485}
486
487enum InlineCompletionHighlight {}
488
489#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
490struct EditorActionId(usize);
491
492impl EditorActionId {
493 pub fn post_inc(&mut self) -> Self {
494 let answer = self.0;
495
496 *self = Self(answer + 1);
497
498 Self(answer)
499 }
500}
501
502// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
503// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
504
505type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
506type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
507
508#[derive(Default)]
509struct ScrollbarMarkerState {
510 scrollbar_size: Size<Pixels>,
511 dirty: bool,
512 markers: Arc<[PaintQuad]>,
513 pending_refresh: Option<Task<Result<()>>>,
514}
515
516impl ScrollbarMarkerState {
517 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
518 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
519 }
520}
521
522#[derive(Clone, Debug)]
523struct RunnableTasks {
524 templates: Vec<(TaskSourceKind, TaskTemplate)>,
525 offset: MultiBufferOffset,
526 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
527 column: u32,
528 // Values of all named captures, including those starting with '_'
529 extra_variables: HashMap<String, String>,
530 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
531 context_range: Range<BufferOffset>,
532}
533
534impl RunnableTasks {
535 fn resolve<'a>(
536 &'a self,
537 cx: &'a task::TaskContext,
538 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
539 self.templates.iter().filter_map(|(kind, template)| {
540 template
541 .resolve_task(&kind.to_id_base(), cx)
542 .map(|task| (kind.clone(), task))
543 })
544 }
545}
546
547#[derive(Clone)]
548struct ResolvedTasks {
549 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
550 position: Anchor,
551}
552#[derive(Copy, Clone, Debug)]
553struct MultiBufferOffset(usize);
554#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
555struct BufferOffset(usize);
556
557// Addons allow storing per-editor state in other crates (e.g. Vim)
558pub trait Addon: 'static {
559 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
560
561 fn to_any(&self) -> &dyn std::any::Any;
562}
563
564#[derive(Debug, Copy, Clone, PartialEq, Eq)]
565pub enum IsVimMode {
566 Yes,
567 No,
568}
569
570/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
571///
572/// See the [module level documentation](self) for more information.
573pub struct Editor {
574 focus_handle: FocusHandle,
575 last_focused_descendant: Option<WeakFocusHandle>,
576 /// The text buffer being edited
577 buffer: Model<MultiBuffer>,
578 /// Map of how text in the buffer should be displayed.
579 /// Handles soft wraps, folds, fake inlay text insertions, etc.
580 pub display_map: Model<DisplayMap>,
581 pub selections: SelectionsCollection,
582 pub scroll_manager: ScrollManager,
583 /// When inline assist editors are linked, they all render cursors because
584 /// typing enters text into each of them, even the ones that aren't focused.
585 pub(crate) show_cursor_when_unfocused: bool,
586 columnar_selection_tail: Option<Anchor>,
587 add_selections_state: Option<AddSelectionsState>,
588 select_next_state: Option<SelectNextState>,
589 select_prev_state: Option<SelectNextState>,
590 selection_history: SelectionHistory,
591 autoclose_regions: Vec<AutocloseRegion>,
592 snippet_stack: InvalidationStack<SnippetState>,
593 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
594 ime_transaction: Option<TransactionId>,
595 active_diagnostics: Option<ActiveDiagnosticGroup>,
596 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
597
598 project: Option<Model<Project>>,
599 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
600 completion_provider: Option<Box<dyn CompletionProvider>>,
601 collaboration_hub: Option<Box<dyn CollaborationHub>>,
602 blink_manager: Model<BlinkManager>,
603 show_cursor_names: bool,
604 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
605 pub show_local_selections: bool,
606 mode: EditorMode,
607 show_breadcrumbs: bool,
608 show_gutter: bool,
609 show_scrollbars: bool,
610 show_line_numbers: Option<bool>,
611 use_relative_line_numbers: Option<bool>,
612 show_git_diff_gutter: Option<bool>,
613 show_code_actions: Option<bool>,
614 show_runnables: Option<bool>,
615 show_wrap_guides: Option<bool>,
616 show_indent_guides: Option<bool>,
617 placeholder_text: Option<Arc<str>>,
618 highlight_order: usize,
619 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
620 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
621 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
622 scrollbar_marker_state: ScrollbarMarkerState,
623 active_indent_guides_state: ActiveIndentGuidesState,
624 nav_history: Option<ItemNavHistory>,
625 context_menu: RefCell<Option<CodeContextMenu>>,
626 mouse_context_menu: Option<MouseContextMenu>,
627 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
628 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
629 signature_help_state: SignatureHelpState,
630 auto_signature_help: Option<bool>,
631 find_all_references_task_sources: Vec<Anchor>,
632 next_completion_id: CompletionId,
633 available_code_actions: Option<(Location, Rc<[AvailableCodeAction]>)>,
634 code_actions_task: Option<Task<Result<()>>>,
635 document_highlights_task: Option<Task<()>>,
636 linked_editing_range_task: Option<Task<Option<()>>>,
637 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
638 pending_rename: Option<RenameState>,
639 searchable: bool,
640 cursor_shape: CursorShape,
641 current_line_highlight: Option<CurrentLineHighlight>,
642 collapse_matches: bool,
643 autoindent_mode: Option<AutoindentMode>,
644 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
645 input_enabled: bool,
646 use_modal_editing: bool,
647 read_only: bool,
648 leader_peer_id: Option<PeerId>,
649 remote_id: Option<ViewId>,
650 hover_state: HoverState,
651 gutter_hovered: bool,
652 hovered_link_state: Option<HoveredLinkState>,
653 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
654 code_action_providers: Vec<Rc<dyn CodeActionProvider>>,
655 active_inline_completion: Option<InlineCompletionState>,
656 // enable_inline_completions is a switch that Vim can use to disable
657 // inline completions based on its mode.
658 enable_inline_completions: bool,
659 show_inline_completions_override: Option<bool>,
660 inlay_hint_cache: InlayHintCache,
661 diff_map: DiffMap,
662 next_inlay_id: usize,
663 _subscriptions: Vec<Subscription>,
664 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
665 gutter_dimensions: GutterDimensions,
666 style: Option<EditorStyle>,
667 text_style_refinement: Option<TextStyleRefinement>,
668 next_editor_action_id: EditorActionId,
669 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
670 use_autoclose: bool,
671 use_auto_surround: bool,
672 auto_replace_emoji_shortcode: bool,
673 show_git_blame_gutter: bool,
674 show_git_blame_inline: bool,
675 show_git_blame_inline_delay_task: Option<Task<()>>,
676 git_blame_inline_enabled: bool,
677 serialize_dirty_buffers: bool,
678 show_selection_menu: Option<bool>,
679 blame: Option<Model<GitBlame>>,
680 blame_subscription: Option<Subscription>,
681 custom_context_menu: Option<
682 Box<
683 dyn 'static
684 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
685 >,
686 >,
687 last_bounds: Option<Bounds<Pixels>>,
688 expect_bounds_change: Option<Bounds<Pixels>>,
689 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
690 tasks_update_task: Option<Task<()>>,
691 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
692 breadcrumb_header: Option<String>,
693 focused_block: Option<FocusedBlock>,
694 next_scroll_position: NextScrollCursorCenterTopBottom,
695 addons: HashMap<TypeId, Box<dyn Addon>>,
696 registered_buffers: HashMap<BufferId, OpenLspBufferHandle>,
697 toggle_fold_multiple_buffers: Task<()>,
698 _scroll_cursor_center_top_bottom_task: Task<()>,
699}
700
701#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
702enum NextScrollCursorCenterTopBottom {
703 #[default]
704 Center,
705 Top,
706 Bottom,
707}
708
709impl NextScrollCursorCenterTopBottom {
710 fn next(&self) -> Self {
711 match self {
712 Self::Center => Self::Top,
713 Self::Top => Self::Bottom,
714 Self::Bottom => Self::Center,
715 }
716 }
717}
718
719#[derive(Clone)]
720pub struct EditorSnapshot {
721 pub mode: EditorMode,
722 show_gutter: bool,
723 show_line_numbers: Option<bool>,
724 show_git_diff_gutter: Option<bool>,
725 show_code_actions: Option<bool>,
726 show_runnables: Option<bool>,
727 git_blame_gutter_max_author_length: Option<usize>,
728 pub display_snapshot: DisplaySnapshot,
729 pub placeholder_text: Option<Arc<str>>,
730 diff_map: DiffMapSnapshot,
731 is_focused: bool,
732 scroll_anchor: ScrollAnchor,
733 ongoing_scroll: OngoingScroll,
734 current_line_highlight: CurrentLineHighlight,
735 gutter_hovered: bool,
736}
737
738const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
739
740#[derive(Default, Debug, Clone, Copy)]
741pub struct GutterDimensions {
742 pub left_padding: Pixels,
743 pub right_padding: Pixels,
744 pub width: Pixels,
745 pub margin: Pixels,
746 pub git_blame_entries_width: Option<Pixels>,
747}
748
749impl GutterDimensions {
750 /// The full width of the space taken up by the gutter.
751 pub fn full_width(&self) -> Pixels {
752 self.margin + self.width
753 }
754
755 /// The width of the space reserved for the fold indicators,
756 /// use alongside 'justify_end' and `gutter_width` to
757 /// right align content with the line numbers
758 pub fn fold_area_width(&self) -> Pixels {
759 self.margin + self.right_padding
760 }
761}
762
763#[derive(Debug)]
764pub struct RemoteSelection {
765 pub replica_id: ReplicaId,
766 pub selection: Selection<Anchor>,
767 pub cursor_shape: CursorShape,
768 pub peer_id: PeerId,
769 pub line_mode: bool,
770 pub participant_index: Option<ParticipantIndex>,
771 pub user_name: Option<SharedString>,
772}
773
774#[derive(Clone, Debug)]
775struct SelectionHistoryEntry {
776 selections: Arc<[Selection<Anchor>]>,
777 select_next_state: Option<SelectNextState>,
778 select_prev_state: Option<SelectNextState>,
779 add_selections_state: Option<AddSelectionsState>,
780}
781
782enum SelectionHistoryMode {
783 Normal,
784 Undoing,
785 Redoing,
786}
787
788#[derive(Clone, PartialEq, Eq, Hash)]
789struct HoveredCursor {
790 replica_id: u16,
791 selection_id: usize,
792}
793
794impl Default for SelectionHistoryMode {
795 fn default() -> Self {
796 Self::Normal
797 }
798}
799
800#[derive(Default)]
801struct SelectionHistory {
802 #[allow(clippy::type_complexity)]
803 selections_by_transaction:
804 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
805 mode: SelectionHistoryMode,
806 undo_stack: VecDeque<SelectionHistoryEntry>,
807 redo_stack: VecDeque<SelectionHistoryEntry>,
808}
809
810impl SelectionHistory {
811 fn insert_transaction(
812 &mut self,
813 transaction_id: TransactionId,
814 selections: Arc<[Selection<Anchor>]>,
815 ) {
816 self.selections_by_transaction
817 .insert(transaction_id, (selections, None));
818 }
819
820 #[allow(clippy::type_complexity)]
821 fn transaction(
822 &self,
823 transaction_id: TransactionId,
824 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
825 self.selections_by_transaction.get(&transaction_id)
826 }
827
828 #[allow(clippy::type_complexity)]
829 fn transaction_mut(
830 &mut self,
831 transaction_id: TransactionId,
832 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
833 self.selections_by_transaction.get_mut(&transaction_id)
834 }
835
836 fn push(&mut self, entry: SelectionHistoryEntry) {
837 if !entry.selections.is_empty() {
838 match self.mode {
839 SelectionHistoryMode::Normal => {
840 self.push_undo(entry);
841 self.redo_stack.clear();
842 }
843 SelectionHistoryMode::Undoing => self.push_redo(entry),
844 SelectionHistoryMode::Redoing => self.push_undo(entry),
845 }
846 }
847 }
848
849 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
850 if self
851 .undo_stack
852 .back()
853 .map_or(true, |e| e.selections != entry.selections)
854 {
855 self.undo_stack.push_back(entry);
856 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
857 self.undo_stack.pop_front();
858 }
859 }
860 }
861
862 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
863 if self
864 .redo_stack
865 .back()
866 .map_or(true, |e| e.selections != entry.selections)
867 {
868 self.redo_stack.push_back(entry);
869 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
870 self.redo_stack.pop_front();
871 }
872 }
873 }
874}
875
876struct RowHighlight {
877 index: usize,
878 range: Range<Anchor>,
879 color: Hsla,
880 should_autoscroll: bool,
881}
882
883#[derive(Clone, Debug)]
884struct AddSelectionsState {
885 above: bool,
886 stack: Vec<usize>,
887}
888
889#[derive(Clone)]
890struct SelectNextState {
891 query: AhoCorasick,
892 wordwise: bool,
893 done: bool,
894}
895
896impl std::fmt::Debug for SelectNextState {
897 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
898 f.debug_struct(std::any::type_name::<Self>())
899 .field("wordwise", &self.wordwise)
900 .field("done", &self.done)
901 .finish()
902 }
903}
904
905#[derive(Debug)]
906struct AutocloseRegion {
907 selection_id: usize,
908 range: Range<Anchor>,
909 pair: BracketPair,
910}
911
912#[derive(Debug)]
913struct SnippetState {
914 ranges: Vec<Vec<Range<Anchor>>>,
915 active_index: usize,
916 choices: Vec<Option<Vec<String>>>,
917}
918
919#[doc(hidden)]
920pub struct RenameState {
921 pub range: Range<Anchor>,
922 pub old_name: Arc<str>,
923 pub editor: View<Editor>,
924 block_id: CustomBlockId,
925}
926
927struct InvalidationStack<T>(Vec<T>);
928
929struct RegisteredInlineCompletionProvider {
930 provider: Arc<dyn InlineCompletionProviderHandle>,
931 _subscription: Subscription,
932}
933
934#[derive(Debug)]
935struct ActiveDiagnosticGroup {
936 primary_range: Range<Anchor>,
937 primary_message: String,
938 group_id: usize,
939 blocks: HashMap<CustomBlockId, Diagnostic>,
940 is_valid: bool,
941}
942
943#[derive(Serialize, Deserialize, Clone, Debug)]
944pub struct ClipboardSelection {
945 pub len: usize,
946 pub is_entire_line: bool,
947 pub first_line_indent: u32,
948}
949
950#[derive(Debug)]
951pub(crate) struct NavigationData {
952 cursor_anchor: Anchor,
953 cursor_position: Point,
954 scroll_anchor: ScrollAnchor,
955 scroll_top_row: u32,
956}
957
958#[derive(Debug, Clone, Copy, PartialEq, Eq)]
959pub enum GotoDefinitionKind {
960 Symbol,
961 Declaration,
962 Type,
963 Implementation,
964}
965
966#[derive(Debug, Clone)]
967enum InlayHintRefreshReason {
968 Toggle(bool),
969 SettingsChange(InlayHintSettings),
970 NewLinesShown,
971 BufferEdited(HashSet<Arc<Language>>),
972 RefreshRequested,
973 ExcerptsRemoved(Vec<ExcerptId>),
974}
975
976impl InlayHintRefreshReason {
977 fn description(&self) -> &'static str {
978 match self {
979 Self::Toggle(_) => "toggle",
980 Self::SettingsChange(_) => "settings change",
981 Self::NewLinesShown => "new lines shown",
982 Self::BufferEdited(_) => "buffer edited",
983 Self::RefreshRequested => "refresh requested",
984 Self::ExcerptsRemoved(_) => "excerpts removed",
985 }
986 }
987}
988
989pub(crate) struct FocusedBlock {
990 id: BlockId,
991 focus_handle: WeakFocusHandle,
992}
993
994#[derive(Clone)]
995struct JumpData {
996 excerpt_id: ExcerptId,
997 position: Point,
998 anchor: text::Anchor,
999 path: Option<project::ProjectPath>,
1000 line_offset_from_top: u32,
1001}
1002
1003impl Editor {
1004 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1005 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1006 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1007 Self::new(
1008 EditorMode::SingleLine { auto_width: false },
1009 buffer,
1010 None,
1011 false,
1012 cx,
1013 )
1014 }
1015
1016 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1017 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1018 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1019 Self::new(EditorMode::Full, buffer, None, false, cx)
1020 }
1021
1022 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1023 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1024 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1025 Self::new(
1026 EditorMode::SingleLine { auto_width: true },
1027 buffer,
1028 None,
1029 false,
1030 cx,
1031 )
1032 }
1033
1034 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1035 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1036 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1037 Self::new(
1038 EditorMode::AutoHeight { max_lines },
1039 buffer,
1040 None,
1041 false,
1042 cx,
1043 )
1044 }
1045
1046 pub fn for_buffer(
1047 buffer: Model<Buffer>,
1048 project: Option<Model<Project>>,
1049 cx: &mut ViewContext<Self>,
1050 ) -> Self {
1051 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1052 Self::new(EditorMode::Full, buffer, project, false, cx)
1053 }
1054
1055 pub fn for_multibuffer(
1056 buffer: Model<MultiBuffer>,
1057 project: Option<Model<Project>>,
1058 show_excerpt_controls: bool,
1059 cx: &mut ViewContext<Self>,
1060 ) -> Self {
1061 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1062 }
1063
1064 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1065 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1066 let mut clone = Self::new(
1067 self.mode,
1068 self.buffer.clone(),
1069 self.project.clone(),
1070 show_excerpt_controls,
1071 cx,
1072 );
1073 self.display_map.update(cx, |display_map, cx| {
1074 let snapshot = display_map.snapshot(cx);
1075 clone.display_map.update(cx, |display_map, cx| {
1076 display_map.set_state(&snapshot, cx);
1077 });
1078 });
1079 clone.selections.clone_state(&self.selections);
1080 clone.scroll_manager.clone_state(&self.scroll_manager);
1081 clone.searchable = self.searchable;
1082 clone
1083 }
1084
1085 pub fn new(
1086 mode: EditorMode,
1087 buffer: Model<MultiBuffer>,
1088 project: Option<Model<Project>>,
1089 show_excerpt_controls: bool,
1090 cx: &mut ViewContext<Self>,
1091 ) -> Self {
1092 let style = cx.text_style();
1093 let font_size = style.font_size.to_pixels(cx.rem_size());
1094 let editor = cx.view().downgrade();
1095 let fold_placeholder = FoldPlaceholder {
1096 constrain_width: true,
1097 render: Arc::new(move |fold_id, fold_range, cx| {
1098 let editor = editor.clone();
1099 div()
1100 .id(fold_id)
1101 .bg(cx.theme().colors().ghost_element_background)
1102 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1103 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1104 .rounded_sm()
1105 .size_full()
1106 .cursor_pointer()
1107 .child("⋯")
1108 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1109 .on_click(move |_, cx| {
1110 editor
1111 .update(cx, |editor, cx| {
1112 editor.unfold_ranges(
1113 &[fold_range.start..fold_range.end],
1114 true,
1115 false,
1116 cx,
1117 );
1118 cx.stop_propagation();
1119 })
1120 .ok();
1121 })
1122 .into_any()
1123 }),
1124 merge_adjacent: true,
1125 ..Default::default()
1126 };
1127 let display_map = cx.new_model(|cx| {
1128 DisplayMap::new(
1129 buffer.clone(),
1130 style.font(),
1131 font_size,
1132 None,
1133 show_excerpt_controls,
1134 FILE_HEADER_HEIGHT,
1135 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1136 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1137 fold_placeholder,
1138 cx,
1139 )
1140 });
1141
1142 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1143
1144 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1145
1146 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1147 .then(|| language_settings::SoftWrap::None);
1148
1149 let mut project_subscriptions = Vec::new();
1150 if mode == EditorMode::Full {
1151 if let Some(project) = project.as_ref() {
1152 if buffer.read(cx).is_singleton() {
1153 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1154 cx.emit(EditorEvent::TitleChanged);
1155 }));
1156 }
1157 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1158 if let project::Event::RefreshInlayHints = event {
1159 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1160 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1161 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1162 let focus_handle = editor.focus_handle(cx);
1163 if focus_handle.is_focused(cx) {
1164 let snapshot = buffer.read(cx).snapshot();
1165 for (range, snippet) in snippet_edits {
1166 let editor_range =
1167 language::range_from_lsp(*range).to_offset(&snapshot);
1168 editor
1169 .insert_snippet(&[editor_range], snippet.clone(), cx)
1170 .ok();
1171 }
1172 }
1173 }
1174 }
1175 }));
1176 if let Some(task_inventory) = project
1177 .read(cx)
1178 .task_store()
1179 .read(cx)
1180 .task_inventory()
1181 .cloned()
1182 {
1183 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1184 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1185 }));
1186 }
1187 }
1188 }
1189
1190 let buffer_snapshot = buffer.read(cx).snapshot(cx);
1191
1192 let inlay_hint_settings =
1193 inlay_hint_settings(selections.newest_anchor().head(), &buffer_snapshot, cx);
1194 let focus_handle = cx.focus_handle();
1195 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1196 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1197 .detach();
1198 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1199 .detach();
1200 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1201
1202 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1203 Some(false)
1204 } else {
1205 None
1206 };
1207
1208 let mut code_action_providers = Vec::new();
1209 if let Some(project) = project.clone() {
1210 get_unstaged_changes_for_buffers(&project, buffer.read(cx).all_buffers(), cx);
1211 code_action_providers.push(Rc::new(project) as Rc<_>);
1212 }
1213
1214 let mut this = Self {
1215 focus_handle,
1216 show_cursor_when_unfocused: false,
1217 last_focused_descendant: None,
1218 buffer: buffer.clone(),
1219 display_map: display_map.clone(),
1220 selections,
1221 scroll_manager: ScrollManager::new(cx),
1222 columnar_selection_tail: None,
1223 add_selections_state: None,
1224 select_next_state: None,
1225 select_prev_state: None,
1226 selection_history: Default::default(),
1227 autoclose_regions: Default::default(),
1228 snippet_stack: Default::default(),
1229 select_larger_syntax_node_stack: Vec::new(),
1230 ime_transaction: Default::default(),
1231 active_diagnostics: None,
1232 soft_wrap_mode_override,
1233 completion_provider: project.clone().map(|project| Box::new(project) as _),
1234 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1235 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1236 project,
1237 blink_manager: blink_manager.clone(),
1238 show_local_selections: true,
1239 show_scrollbars: true,
1240 mode,
1241 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1242 show_gutter: mode == EditorMode::Full,
1243 show_line_numbers: None,
1244 use_relative_line_numbers: None,
1245 show_git_diff_gutter: None,
1246 show_code_actions: None,
1247 show_runnables: None,
1248 show_wrap_guides: None,
1249 show_indent_guides,
1250 placeholder_text: None,
1251 highlight_order: 0,
1252 highlighted_rows: HashMap::default(),
1253 background_highlights: Default::default(),
1254 gutter_highlights: TreeMap::default(),
1255 scrollbar_marker_state: ScrollbarMarkerState::default(),
1256 active_indent_guides_state: ActiveIndentGuidesState::default(),
1257 nav_history: None,
1258 context_menu: RefCell::new(None),
1259 mouse_context_menu: None,
1260 hunk_controls_menu_handle: PopoverMenuHandle::default(),
1261 completion_tasks: Default::default(),
1262 signature_help_state: SignatureHelpState::default(),
1263 auto_signature_help: None,
1264 find_all_references_task_sources: Vec::new(),
1265 next_completion_id: 0,
1266 next_inlay_id: 0,
1267 code_action_providers,
1268 available_code_actions: Default::default(),
1269 code_actions_task: Default::default(),
1270 document_highlights_task: Default::default(),
1271 linked_editing_range_task: Default::default(),
1272 pending_rename: Default::default(),
1273 searchable: true,
1274 cursor_shape: EditorSettings::get_global(cx)
1275 .cursor_shape
1276 .unwrap_or_default(),
1277 current_line_highlight: None,
1278 autoindent_mode: Some(AutoindentMode::EachLine),
1279 collapse_matches: false,
1280 workspace: None,
1281 input_enabled: true,
1282 use_modal_editing: mode == EditorMode::Full,
1283 read_only: false,
1284 use_autoclose: true,
1285 use_auto_surround: true,
1286 auto_replace_emoji_shortcode: false,
1287 leader_peer_id: None,
1288 remote_id: None,
1289 hover_state: Default::default(),
1290 hovered_link_state: Default::default(),
1291 inline_completion_provider: None,
1292 active_inline_completion: None,
1293 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1294 diff_map: DiffMap::default(),
1295 gutter_hovered: false,
1296 pixel_position_of_newest_cursor: None,
1297 last_bounds: None,
1298 expect_bounds_change: None,
1299 gutter_dimensions: GutterDimensions::default(),
1300 style: None,
1301 show_cursor_names: false,
1302 hovered_cursors: Default::default(),
1303 next_editor_action_id: EditorActionId::default(),
1304 editor_actions: Rc::default(),
1305 show_inline_completions_override: None,
1306 enable_inline_completions: true,
1307 custom_context_menu: None,
1308 show_git_blame_gutter: false,
1309 show_git_blame_inline: false,
1310 show_selection_menu: None,
1311 show_git_blame_inline_delay_task: None,
1312 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1313 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1314 .session
1315 .restore_unsaved_buffers,
1316 blame: None,
1317 blame_subscription: None,
1318 tasks: Default::default(),
1319 _subscriptions: vec![
1320 cx.observe(&buffer, Self::on_buffer_changed),
1321 cx.subscribe(&buffer, Self::on_buffer_event),
1322 cx.observe(&display_map, Self::on_display_map_changed),
1323 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1324 cx.observe_global::<SettingsStore>(Self::settings_changed),
1325 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1326 cx.observe_window_activation(|editor, cx| {
1327 let active = cx.is_window_active();
1328 editor.blink_manager.update(cx, |blink_manager, cx| {
1329 if active {
1330 blink_manager.enable(cx);
1331 } else {
1332 blink_manager.disable(cx);
1333 }
1334 });
1335 }),
1336 ],
1337 tasks_update_task: None,
1338 linked_edit_ranges: Default::default(),
1339 previous_search_ranges: None,
1340 breadcrumb_header: None,
1341 focused_block: None,
1342 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
1343 addons: HashMap::default(),
1344 registered_buffers: HashMap::default(),
1345 _scroll_cursor_center_top_bottom_task: Task::ready(()),
1346 toggle_fold_multiple_buffers: Task::ready(()),
1347 text_style_refinement: None,
1348 };
1349 this.tasks_update_task = Some(this.refresh_runnables(cx));
1350 this._subscriptions.extend(project_subscriptions);
1351
1352 this.end_selection(cx);
1353 this.scroll_manager.show_scrollbar(cx);
1354
1355 if mode == EditorMode::Full {
1356 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1357 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1358
1359 if this.git_blame_inline_enabled {
1360 this.git_blame_inline_enabled = true;
1361 this.start_git_blame_inline(false, cx);
1362 }
1363
1364 if let Some(buffer) = buffer.read(cx).as_singleton() {
1365 if let Some(project) = this.project.as_ref() {
1366 let lsp_store = project.read(cx).lsp_store();
1367 let handle = lsp_store.update(cx, |lsp_store, cx| {
1368 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1369 });
1370 this.registered_buffers
1371 .insert(buffer.read(cx).remote_id(), handle);
1372 }
1373 }
1374 }
1375
1376 this.report_editor_event("Editor Opened", None, cx);
1377 this
1378 }
1379
1380 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
1381 self.mouse_context_menu
1382 .as_ref()
1383 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1384 }
1385
1386 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
1387 let mut key_context = KeyContext::new_with_defaults();
1388 key_context.add("Editor");
1389 let mode = match self.mode {
1390 EditorMode::SingleLine { .. } => "single_line",
1391 EditorMode::AutoHeight { .. } => "auto_height",
1392 EditorMode::Full => "full",
1393 };
1394
1395 if EditorSettings::jupyter_enabled(cx) {
1396 key_context.add("jupyter");
1397 }
1398
1399 key_context.set("mode", mode);
1400 if self.pending_rename.is_some() {
1401 key_context.add("renaming");
1402 }
1403 match self.context_menu.borrow().as_ref() {
1404 Some(CodeContextMenu::Completions(_)) => {
1405 key_context.add("menu");
1406 key_context.add("showing_completions")
1407 }
1408 Some(CodeContextMenu::CodeActions(_)) => {
1409 key_context.add("menu");
1410 key_context.add("showing_code_actions")
1411 }
1412 None => {}
1413 }
1414
1415 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
1416 if !self.focus_handle(cx).contains_focused(cx)
1417 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
1418 {
1419 for addon in self.addons.values() {
1420 addon.extend_key_context(&mut key_context, cx)
1421 }
1422 }
1423
1424 if let Some(extension) = self
1425 .buffer
1426 .read(cx)
1427 .as_singleton()
1428 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1429 {
1430 key_context.set("extension", extension.to_string());
1431 }
1432
1433 if self.has_active_inline_completion() {
1434 key_context.add("copilot_suggestion");
1435 key_context.add("inline_completion");
1436 }
1437
1438 if !self
1439 .selections
1440 .disjoint
1441 .iter()
1442 .all(|selection| selection.start == selection.end)
1443 {
1444 key_context.add("selection");
1445 }
1446
1447 key_context
1448 }
1449
1450 pub fn new_file(
1451 workspace: &mut Workspace,
1452 _: &workspace::NewFile,
1453 cx: &mut ViewContext<Workspace>,
1454 ) {
1455 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
1456 "Failed to create buffer",
1457 cx,
1458 |e, _| match e.error_code() {
1459 ErrorCode::RemoteUpgradeRequired => Some(format!(
1460 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1461 e.error_tag("required").unwrap_or("the latest version")
1462 )),
1463 _ => None,
1464 },
1465 );
1466 }
1467
1468 pub fn new_in_workspace(
1469 workspace: &mut Workspace,
1470 cx: &mut ViewContext<Workspace>,
1471 ) -> Task<Result<View<Editor>>> {
1472 let project = workspace.project().clone();
1473 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1474
1475 cx.spawn(|workspace, mut cx| async move {
1476 let buffer = create.await?;
1477 workspace.update(&mut cx, |workspace, cx| {
1478 let editor =
1479 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
1480 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
1481 editor
1482 })
1483 })
1484 }
1485
1486 fn new_file_vertical(
1487 workspace: &mut Workspace,
1488 _: &workspace::NewFileSplitVertical,
1489 cx: &mut ViewContext<Workspace>,
1490 ) {
1491 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
1492 }
1493
1494 fn new_file_horizontal(
1495 workspace: &mut Workspace,
1496 _: &workspace::NewFileSplitHorizontal,
1497 cx: &mut ViewContext<Workspace>,
1498 ) {
1499 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
1500 }
1501
1502 fn new_file_in_direction(
1503 workspace: &mut Workspace,
1504 direction: SplitDirection,
1505 cx: &mut ViewContext<Workspace>,
1506 ) {
1507 let project = workspace.project().clone();
1508 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1509
1510 cx.spawn(|workspace, mut cx| async move {
1511 let buffer = create.await?;
1512 workspace.update(&mut cx, move |workspace, cx| {
1513 workspace.split_item(
1514 direction,
1515 Box::new(
1516 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1517 ),
1518 cx,
1519 )
1520 })?;
1521 anyhow::Ok(())
1522 })
1523 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1524 ErrorCode::RemoteUpgradeRequired => Some(format!(
1525 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1526 e.error_tag("required").unwrap_or("the latest version")
1527 )),
1528 _ => None,
1529 });
1530 }
1531
1532 pub fn leader_peer_id(&self) -> Option<PeerId> {
1533 self.leader_peer_id
1534 }
1535
1536 pub fn buffer(&self) -> &Model<MultiBuffer> {
1537 &self.buffer
1538 }
1539
1540 pub fn workspace(&self) -> Option<View<Workspace>> {
1541 self.workspace.as_ref()?.0.upgrade()
1542 }
1543
1544 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1545 self.buffer().read(cx).title(cx)
1546 }
1547
1548 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1549 let git_blame_gutter_max_author_length = self
1550 .render_git_blame_gutter(cx)
1551 .then(|| {
1552 if let Some(blame) = self.blame.as_ref() {
1553 let max_author_length =
1554 blame.update(cx, |blame, cx| blame.max_author_length(cx));
1555 Some(max_author_length)
1556 } else {
1557 None
1558 }
1559 })
1560 .flatten();
1561
1562 EditorSnapshot {
1563 mode: self.mode,
1564 show_gutter: self.show_gutter,
1565 show_line_numbers: self.show_line_numbers,
1566 show_git_diff_gutter: self.show_git_diff_gutter,
1567 show_code_actions: self.show_code_actions,
1568 show_runnables: self.show_runnables,
1569 git_blame_gutter_max_author_length,
1570 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1571 scroll_anchor: self.scroll_manager.anchor(),
1572 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1573 placeholder_text: self.placeholder_text.clone(),
1574 diff_map: self.diff_map.snapshot(),
1575 is_focused: self.focus_handle.is_focused(cx),
1576 current_line_highlight: self
1577 .current_line_highlight
1578 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
1579 gutter_hovered: self.gutter_hovered,
1580 }
1581 }
1582
1583 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1584 self.buffer.read(cx).language_at(point, cx)
1585 }
1586
1587 pub fn file_at<T: ToOffset>(
1588 &self,
1589 point: T,
1590 cx: &AppContext,
1591 ) -> Option<Arc<dyn language::File>> {
1592 self.buffer.read(cx).read(cx).file_at(point).cloned()
1593 }
1594
1595 pub fn active_excerpt(
1596 &self,
1597 cx: &AppContext,
1598 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1599 self.buffer
1600 .read(cx)
1601 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1602 }
1603
1604 pub fn mode(&self) -> EditorMode {
1605 self.mode
1606 }
1607
1608 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1609 self.collaboration_hub.as_deref()
1610 }
1611
1612 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1613 self.collaboration_hub = Some(hub);
1614 }
1615
1616 pub fn set_custom_context_menu(
1617 &mut self,
1618 f: impl 'static
1619 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1620 ) {
1621 self.custom_context_menu = Some(Box::new(f))
1622 }
1623
1624 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
1625 self.completion_provider = provider;
1626 }
1627
1628 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
1629 self.semantics_provider.clone()
1630 }
1631
1632 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
1633 self.semantics_provider = provider;
1634 }
1635
1636 pub fn set_inline_completion_provider<T>(
1637 &mut self,
1638 provider: Option<Model<T>>,
1639 cx: &mut ViewContext<Self>,
1640 ) where
1641 T: InlineCompletionProvider,
1642 {
1643 self.inline_completion_provider =
1644 provider.map(|provider| RegisteredInlineCompletionProvider {
1645 _subscription: cx.observe(&provider, |this, _, cx| {
1646 if this.focus_handle.is_focused(cx) {
1647 this.update_visible_inline_completion(cx);
1648 }
1649 }),
1650 provider: Arc::new(provider),
1651 });
1652 self.refresh_inline_completion(false, false, cx);
1653 }
1654
1655 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
1656 self.placeholder_text.as_deref()
1657 }
1658
1659 pub fn set_placeholder_text(
1660 &mut self,
1661 placeholder_text: impl Into<Arc<str>>,
1662 cx: &mut ViewContext<Self>,
1663 ) {
1664 let placeholder_text = Some(placeholder_text.into());
1665 if self.placeholder_text != placeholder_text {
1666 self.placeholder_text = placeholder_text;
1667 cx.notify();
1668 }
1669 }
1670
1671 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1672 self.cursor_shape = cursor_shape;
1673
1674 // Disrupt blink for immediate user feedback that the cursor shape has changed
1675 self.blink_manager.update(cx, BlinkManager::show_cursor);
1676
1677 cx.notify();
1678 }
1679
1680 pub fn set_current_line_highlight(
1681 &mut self,
1682 current_line_highlight: Option<CurrentLineHighlight>,
1683 ) {
1684 self.current_line_highlight = current_line_highlight;
1685 }
1686
1687 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1688 self.collapse_matches = collapse_matches;
1689 }
1690
1691 pub fn register_buffers_with_language_servers(&mut self, cx: &mut ViewContext<Self>) {
1692 let buffers = self.buffer.read(cx).all_buffers();
1693 let Some(lsp_store) = self.lsp_store(cx) else {
1694 return;
1695 };
1696 lsp_store.update(cx, |lsp_store, cx| {
1697 for buffer in buffers {
1698 self.registered_buffers
1699 .entry(buffer.read(cx).remote_id())
1700 .or_insert_with(|| {
1701 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1702 });
1703 }
1704 })
1705 }
1706
1707 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1708 if self.collapse_matches {
1709 return range.start..range.start;
1710 }
1711 range.clone()
1712 }
1713
1714 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1715 if self.display_map.read(cx).clip_at_line_ends != clip {
1716 self.display_map
1717 .update(cx, |map, _| map.clip_at_line_ends = clip);
1718 }
1719 }
1720
1721 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1722 self.input_enabled = input_enabled;
1723 }
1724
1725 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
1726 self.enable_inline_completions = enabled;
1727 }
1728
1729 pub fn set_autoindent(&mut self, autoindent: bool) {
1730 if autoindent {
1731 self.autoindent_mode = Some(AutoindentMode::EachLine);
1732 } else {
1733 self.autoindent_mode = None;
1734 }
1735 }
1736
1737 pub fn read_only(&self, cx: &AppContext) -> bool {
1738 self.read_only || self.buffer.read(cx).read_only()
1739 }
1740
1741 pub fn set_read_only(&mut self, read_only: bool) {
1742 self.read_only = read_only;
1743 }
1744
1745 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1746 self.use_autoclose = autoclose;
1747 }
1748
1749 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
1750 self.use_auto_surround = auto_surround;
1751 }
1752
1753 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1754 self.auto_replace_emoji_shortcode = auto_replace;
1755 }
1756
1757 pub fn toggle_inline_completions(
1758 &mut self,
1759 _: &ToggleInlineCompletions,
1760 cx: &mut ViewContext<Self>,
1761 ) {
1762 if self.show_inline_completions_override.is_some() {
1763 self.set_show_inline_completions(None, cx);
1764 } else {
1765 let cursor = self.selections.newest_anchor().head();
1766 if let Some((buffer, cursor_buffer_position)) =
1767 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1768 {
1769 let show_inline_completions =
1770 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
1771 self.set_show_inline_completions(Some(show_inline_completions), cx);
1772 }
1773 }
1774 }
1775
1776 pub fn set_show_inline_completions(
1777 &mut self,
1778 show_inline_completions: Option<bool>,
1779 cx: &mut ViewContext<Self>,
1780 ) {
1781 self.show_inline_completions_override = show_inline_completions;
1782 self.refresh_inline_completion(false, true, cx);
1783 }
1784
1785 fn should_show_inline_completions(
1786 &self,
1787 buffer: &Model<Buffer>,
1788 buffer_position: language::Anchor,
1789 cx: &AppContext,
1790 ) -> bool {
1791 if !self.snippet_stack.is_empty() {
1792 return false;
1793 }
1794
1795 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
1796 return false;
1797 }
1798
1799 if let Some(provider) = self.inline_completion_provider() {
1800 if let Some(show_inline_completions) = self.show_inline_completions_override {
1801 show_inline_completions
1802 } else {
1803 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
1804 }
1805 } else {
1806 false
1807 }
1808 }
1809
1810 fn inline_completions_disabled_in_scope(
1811 &self,
1812 buffer: &Model<Buffer>,
1813 buffer_position: language::Anchor,
1814 cx: &AppContext,
1815 ) -> bool {
1816 let snapshot = buffer.read(cx).snapshot();
1817 let settings = snapshot.settings_at(buffer_position, cx);
1818
1819 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
1820 return false;
1821 };
1822
1823 scope.override_name().map_or(false, |scope_name| {
1824 settings
1825 .inline_completions_disabled_in
1826 .iter()
1827 .any(|s| s == scope_name)
1828 })
1829 }
1830
1831 pub fn set_use_modal_editing(&mut self, to: bool) {
1832 self.use_modal_editing = to;
1833 }
1834
1835 pub fn use_modal_editing(&self) -> bool {
1836 self.use_modal_editing
1837 }
1838
1839 fn selections_did_change(
1840 &mut self,
1841 local: bool,
1842 old_cursor_position: &Anchor,
1843 show_completions: bool,
1844 cx: &mut ViewContext<Self>,
1845 ) {
1846 cx.invalidate_character_coordinates();
1847
1848 // Copy selections to primary selection buffer
1849 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1850 if local {
1851 let selections = self.selections.all::<usize>(cx);
1852 let buffer_handle = self.buffer.read(cx).read(cx);
1853
1854 let mut text = String::new();
1855 for (index, selection) in selections.iter().enumerate() {
1856 let text_for_selection = buffer_handle
1857 .text_for_range(selection.start..selection.end)
1858 .collect::<String>();
1859
1860 text.push_str(&text_for_selection);
1861 if index != selections.len() - 1 {
1862 text.push('\n');
1863 }
1864 }
1865
1866 if !text.is_empty() {
1867 cx.write_to_primary(ClipboardItem::new_string(text));
1868 }
1869 }
1870
1871 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1872 self.buffer.update(cx, |buffer, cx| {
1873 buffer.set_active_selections(
1874 &self.selections.disjoint_anchors(),
1875 self.selections.line_mode,
1876 self.cursor_shape,
1877 cx,
1878 )
1879 });
1880 }
1881 let display_map = self
1882 .display_map
1883 .update(cx, |display_map, cx| display_map.snapshot(cx));
1884 let buffer = &display_map.buffer_snapshot;
1885 self.add_selections_state = None;
1886 self.select_next_state = None;
1887 self.select_prev_state = None;
1888 self.select_larger_syntax_node_stack.clear();
1889 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1890 self.snippet_stack
1891 .invalidate(&self.selections.disjoint_anchors(), buffer);
1892 self.take_rename(false, cx);
1893
1894 let new_cursor_position = self.selections.newest_anchor().head();
1895
1896 self.push_to_nav_history(
1897 *old_cursor_position,
1898 Some(new_cursor_position.to_point(buffer)),
1899 cx,
1900 );
1901
1902 if local {
1903 let new_cursor_position = self.selections.newest_anchor().head();
1904 let mut context_menu = self.context_menu.borrow_mut();
1905 let completion_menu = match context_menu.as_ref() {
1906 Some(CodeContextMenu::Completions(menu)) => Some(menu),
1907 _ => {
1908 *context_menu = None;
1909 None
1910 }
1911 };
1912
1913 if let Some(completion_menu) = completion_menu {
1914 let cursor_position = new_cursor_position.to_offset(buffer);
1915 let (word_range, kind) =
1916 buffer.surrounding_word(completion_menu.initial_position, true);
1917 if kind == Some(CharKind::Word)
1918 && word_range.to_inclusive().contains(&cursor_position)
1919 {
1920 let mut completion_menu = completion_menu.clone();
1921 drop(context_menu);
1922
1923 let query = Self::completion_query(buffer, cursor_position);
1924 cx.spawn(move |this, mut cx| async move {
1925 completion_menu
1926 .filter(query.as_deref(), cx.background_executor().clone())
1927 .await;
1928
1929 this.update(&mut cx, |this, cx| {
1930 let mut context_menu = this.context_menu.borrow_mut();
1931 let Some(CodeContextMenu::Completions(menu)) = context_menu.as_ref()
1932 else {
1933 return;
1934 };
1935
1936 if menu.id > completion_menu.id {
1937 return;
1938 }
1939
1940 *context_menu = Some(CodeContextMenu::Completions(completion_menu));
1941 drop(context_menu);
1942 cx.notify();
1943 })
1944 })
1945 .detach();
1946
1947 if show_completions {
1948 self.show_completions(&ShowCompletions { trigger: None }, cx);
1949 }
1950 } else {
1951 drop(context_menu);
1952 self.hide_context_menu(cx);
1953 }
1954 } else {
1955 drop(context_menu);
1956 }
1957
1958 hide_hover(self, cx);
1959
1960 if old_cursor_position.to_display_point(&display_map).row()
1961 != new_cursor_position.to_display_point(&display_map).row()
1962 {
1963 self.available_code_actions.take();
1964 }
1965 self.refresh_code_actions(cx);
1966 self.refresh_document_highlights(cx);
1967 refresh_matching_bracket_highlights(self, cx);
1968 self.update_visible_inline_completion(cx);
1969 linked_editing_ranges::refresh_linked_ranges(self, cx);
1970 if self.git_blame_inline_enabled {
1971 self.start_inline_blame_timer(cx);
1972 }
1973 }
1974
1975 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1976 cx.emit(EditorEvent::SelectionsChanged { local });
1977
1978 if self.selections.disjoint_anchors().len() == 1 {
1979 cx.emit(SearchEvent::ActiveMatchChanged)
1980 }
1981 cx.notify();
1982 }
1983
1984 pub fn change_selections<R>(
1985 &mut self,
1986 autoscroll: Option<Autoscroll>,
1987 cx: &mut ViewContext<Self>,
1988 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1989 ) -> R {
1990 self.change_selections_inner(autoscroll, true, cx, change)
1991 }
1992
1993 pub fn change_selections_inner<R>(
1994 &mut self,
1995 autoscroll: Option<Autoscroll>,
1996 request_completions: bool,
1997 cx: &mut ViewContext<Self>,
1998 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1999 ) -> R {
2000 let old_cursor_position = self.selections.newest_anchor().head();
2001 self.push_to_selection_history();
2002
2003 let (changed, result) = self.selections.change_with(cx, change);
2004
2005 if changed {
2006 if let Some(autoscroll) = autoscroll {
2007 self.request_autoscroll(autoscroll, cx);
2008 }
2009 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2010
2011 if self.should_open_signature_help_automatically(
2012 &old_cursor_position,
2013 self.signature_help_state.backspace_pressed(),
2014 cx,
2015 ) {
2016 self.show_signature_help(&ShowSignatureHelp, cx);
2017 }
2018 self.signature_help_state.set_backspace_pressed(false);
2019 }
2020
2021 result
2022 }
2023
2024 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2025 where
2026 I: IntoIterator<Item = (Range<S>, T)>,
2027 S: ToOffset,
2028 T: Into<Arc<str>>,
2029 {
2030 if self.read_only(cx) {
2031 return;
2032 }
2033
2034 self.buffer
2035 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2036 }
2037
2038 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2039 where
2040 I: IntoIterator<Item = (Range<S>, T)>,
2041 S: ToOffset,
2042 T: Into<Arc<str>>,
2043 {
2044 if self.read_only(cx) {
2045 return;
2046 }
2047
2048 self.buffer.update(cx, |buffer, cx| {
2049 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2050 });
2051 }
2052
2053 pub fn edit_with_block_indent<I, S, T>(
2054 &mut self,
2055 edits: I,
2056 original_indent_columns: Vec<u32>,
2057 cx: &mut ViewContext<Self>,
2058 ) where
2059 I: IntoIterator<Item = (Range<S>, T)>,
2060 S: ToOffset,
2061 T: Into<Arc<str>>,
2062 {
2063 if self.read_only(cx) {
2064 return;
2065 }
2066
2067 self.buffer.update(cx, |buffer, cx| {
2068 buffer.edit(
2069 edits,
2070 Some(AutoindentMode::Block {
2071 original_indent_columns,
2072 }),
2073 cx,
2074 )
2075 });
2076 }
2077
2078 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2079 self.hide_context_menu(cx);
2080
2081 match phase {
2082 SelectPhase::Begin {
2083 position,
2084 add,
2085 click_count,
2086 } => self.begin_selection(position, add, click_count, cx),
2087 SelectPhase::BeginColumnar {
2088 position,
2089 goal_column,
2090 reset,
2091 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2092 SelectPhase::Extend {
2093 position,
2094 click_count,
2095 } => self.extend_selection(position, click_count, cx),
2096 SelectPhase::Update {
2097 position,
2098 goal_column,
2099 scroll_delta,
2100 } => self.update_selection(position, goal_column, scroll_delta, cx),
2101 SelectPhase::End => self.end_selection(cx),
2102 }
2103 }
2104
2105 fn extend_selection(
2106 &mut self,
2107 position: DisplayPoint,
2108 click_count: usize,
2109 cx: &mut ViewContext<Self>,
2110 ) {
2111 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2112 let tail = self.selections.newest::<usize>(cx).tail();
2113 self.begin_selection(position, false, click_count, cx);
2114
2115 let position = position.to_offset(&display_map, Bias::Left);
2116 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2117
2118 let mut pending_selection = self
2119 .selections
2120 .pending_anchor()
2121 .expect("extend_selection not called with pending selection");
2122 if position >= tail {
2123 pending_selection.start = tail_anchor;
2124 } else {
2125 pending_selection.end = tail_anchor;
2126 pending_selection.reversed = true;
2127 }
2128
2129 let mut pending_mode = self.selections.pending_mode().unwrap();
2130 match &mut pending_mode {
2131 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2132 _ => {}
2133 }
2134
2135 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2136 s.set_pending(pending_selection, pending_mode)
2137 });
2138 }
2139
2140 fn begin_selection(
2141 &mut self,
2142 position: DisplayPoint,
2143 add: bool,
2144 click_count: usize,
2145 cx: &mut ViewContext<Self>,
2146 ) {
2147 if !self.focus_handle.is_focused(cx) {
2148 self.last_focused_descendant = None;
2149 cx.focus(&self.focus_handle);
2150 }
2151
2152 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2153 let buffer = &display_map.buffer_snapshot;
2154 let newest_selection = self.selections.newest_anchor().clone();
2155 let position = display_map.clip_point(position, Bias::Left);
2156
2157 let start;
2158 let end;
2159 let mode;
2160 let mut auto_scroll;
2161 match click_count {
2162 1 => {
2163 start = buffer.anchor_before(position.to_point(&display_map));
2164 end = start;
2165 mode = SelectMode::Character;
2166 auto_scroll = true;
2167 }
2168 2 => {
2169 let range = movement::surrounding_word(&display_map, position);
2170 start = buffer.anchor_before(range.start.to_point(&display_map));
2171 end = buffer.anchor_before(range.end.to_point(&display_map));
2172 mode = SelectMode::Word(start..end);
2173 auto_scroll = true;
2174 }
2175 3 => {
2176 let position = display_map
2177 .clip_point(position, Bias::Left)
2178 .to_point(&display_map);
2179 let line_start = display_map.prev_line_boundary(position).0;
2180 let next_line_start = buffer.clip_point(
2181 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2182 Bias::Left,
2183 );
2184 start = buffer.anchor_before(line_start);
2185 end = buffer.anchor_before(next_line_start);
2186 mode = SelectMode::Line(start..end);
2187 auto_scroll = true;
2188 }
2189 _ => {
2190 start = buffer.anchor_before(0);
2191 end = buffer.anchor_before(buffer.len());
2192 mode = SelectMode::All;
2193 auto_scroll = false;
2194 }
2195 }
2196 auto_scroll &= EditorSettings::get_global(cx).autoscroll_on_clicks;
2197
2198 let point_to_delete: Option<usize> = {
2199 let selected_points: Vec<Selection<Point>> =
2200 self.selections.disjoint_in_range(start..end, cx);
2201
2202 if !add || click_count > 1 {
2203 None
2204 } else if !selected_points.is_empty() {
2205 Some(selected_points[0].id)
2206 } else {
2207 let clicked_point_already_selected =
2208 self.selections.disjoint.iter().find(|selection| {
2209 selection.start.to_point(buffer) == start.to_point(buffer)
2210 || selection.end.to_point(buffer) == end.to_point(buffer)
2211 });
2212
2213 clicked_point_already_selected.map(|selection| selection.id)
2214 }
2215 };
2216
2217 let selections_count = self.selections.count();
2218
2219 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2220 if let Some(point_to_delete) = point_to_delete {
2221 s.delete(point_to_delete);
2222
2223 if selections_count == 1 {
2224 s.set_pending_anchor_range(start..end, mode);
2225 }
2226 } else {
2227 if !add {
2228 s.clear_disjoint();
2229 } else if click_count > 1 {
2230 s.delete(newest_selection.id)
2231 }
2232
2233 s.set_pending_anchor_range(start..end, mode);
2234 }
2235 });
2236 }
2237
2238 fn begin_columnar_selection(
2239 &mut self,
2240 position: DisplayPoint,
2241 goal_column: u32,
2242 reset: bool,
2243 cx: &mut ViewContext<Self>,
2244 ) {
2245 if !self.focus_handle.is_focused(cx) {
2246 self.last_focused_descendant = None;
2247 cx.focus(&self.focus_handle);
2248 }
2249
2250 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2251
2252 if reset {
2253 let pointer_position = display_map
2254 .buffer_snapshot
2255 .anchor_before(position.to_point(&display_map));
2256
2257 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2258 s.clear_disjoint();
2259 s.set_pending_anchor_range(
2260 pointer_position..pointer_position,
2261 SelectMode::Character,
2262 );
2263 });
2264 }
2265
2266 let tail = self.selections.newest::<Point>(cx).tail();
2267 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2268
2269 if !reset {
2270 self.select_columns(
2271 tail.to_display_point(&display_map),
2272 position,
2273 goal_column,
2274 &display_map,
2275 cx,
2276 );
2277 }
2278 }
2279
2280 fn update_selection(
2281 &mut self,
2282 position: DisplayPoint,
2283 goal_column: u32,
2284 scroll_delta: gpui::Point<f32>,
2285 cx: &mut ViewContext<Self>,
2286 ) {
2287 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2288
2289 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2290 let tail = tail.to_display_point(&display_map);
2291 self.select_columns(tail, position, goal_column, &display_map, cx);
2292 } else if let Some(mut pending) = self.selections.pending_anchor() {
2293 let buffer = self.buffer.read(cx).snapshot(cx);
2294 let head;
2295 let tail;
2296 let mode = self.selections.pending_mode().unwrap();
2297 match &mode {
2298 SelectMode::Character => {
2299 head = position.to_point(&display_map);
2300 tail = pending.tail().to_point(&buffer);
2301 }
2302 SelectMode::Word(original_range) => {
2303 let original_display_range = original_range.start.to_display_point(&display_map)
2304 ..original_range.end.to_display_point(&display_map);
2305 let original_buffer_range = original_display_range.start.to_point(&display_map)
2306 ..original_display_range.end.to_point(&display_map);
2307 if movement::is_inside_word(&display_map, position)
2308 || original_display_range.contains(&position)
2309 {
2310 let word_range = movement::surrounding_word(&display_map, position);
2311 if word_range.start < original_display_range.start {
2312 head = word_range.start.to_point(&display_map);
2313 } else {
2314 head = word_range.end.to_point(&display_map);
2315 }
2316 } else {
2317 head = position.to_point(&display_map);
2318 }
2319
2320 if head <= original_buffer_range.start {
2321 tail = original_buffer_range.end;
2322 } else {
2323 tail = original_buffer_range.start;
2324 }
2325 }
2326 SelectMode::Line(original_range) => {
2327 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2328
2329 let position = display_map
2330 .clip_point(position, Bias::Left)
2331 .to_point(&display_map);
2332 let line_start = display_map.prev_line_boundary(position).0;
2333 let next_line_start = buffer.clip_point(
2334 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2335 Bias::Left,
2336 );
2337
2338 if line_start < original_range.start {
2339 head = line_start
2340 } else {
2341 head = next_line_start
2342 }
2343
2344 if head <= original_range.start {
2345 tail = original_range.end;
2346 } else {
2347 tail = original_range.start;
2348 }
2349 }
2350 SelectMode::All => {
2351 return;
2352 }
2353 };
2354
2355 if head < tail {
2356 pending.start = buffer.anchor_before(head);
2357 pending.end = buffer.anchor_before(tail);
2358 pending.reversed = true;
2359 } else {
2360 pending.start = buffer.anchor_before(tail);
2361 pending.end = buffer.anchor_before(head);
2362 pending.reversed = false;
2363 }
2364
2365 self.change_selections(None, cx, |s| {
2366 s.set_pending(pending, mode);
2367 });
2368 } else {
2369 log::error!("update_selection dispatched with no pending selection");
2370 return;
2371 }
2372
2373 self.apply_scroll_delta(scroll_delta, cx);
2374 cx.notify();
2375 }
2376
2377 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2378 self.columnar_selection_tail.take();
2379 if self.selections.pending_anchor().is_some() {
2380 let selections = self.selections.all::<usize>(cx);
2381 self.change_selections(None, cx, |s| {
2382 s.select(selections);
2383 s.clear_pending();
2384 });
2385 }
2386 }
2387
2388 fn select_columns(
2389 &mut self,
2390 tail: DisplayPoint,
2391 head: DisplayPoint,
2392 goal_column: u32,
2393 display_map: &DisplaySnapshot,
2394 cx: &mut ViewContext<Self>,
2395 ) {
2396 let start_row = cmp::min(tail.row(), head.row());
2397 let end_row = cmp::max(tail.row(), head.row());
2398 let start_column = cmp::min(tail.column(), goal_column);
2399 let end_column = cmp::max(tail.column(), goal_column);
2400 let reversed = start_column < tail.column();
2401
2402 let selection_ranges = (start_row.0..=end_row.0)
2403 .map(DisplayRow)
2404 .filter_map(|row| {
2405 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2406 let start = display_map
2407 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2408 .to_point(display_map);
2409 let end = display_map
2410 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2411 .to_point(display_map);
2412 if reversed {
2413 Some(end..start)
2414 } else {
2415 Some(start..end)
2416 }
2417 } else {
2418 None
2419 }
2420 })
2421 .collect::<Vec<_>>();
2422
2423 self.change_selections(None, cx, |s| {
2424 s.select_ranges(selection_ranges);
2425 });
2426 cx.notify();
2427 }
2428
2429 pub fn has_pending_nonempty_selection(&self) -> bool {
2430 let pending_nonempty_selection = match self.selections.pending_anchor() {
2431 Some(Selection { start, end, .. }) => start != end,
2432 None => false,
2433 };
2434
2435 pending_nonempty_selection
2436 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2437 }
2438
2439 pub fn has_pending_selection(&self) -> bool {
2440 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2441 }
2442
2443 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2444 if self.clear_expanded_diff_hunks(cx) {
2445 cx.notify();
2446 return;
2447 }
2448 if self.dismiss_menus_and_popups(true, cx) {
2449 return;
2450 }
2451
2452 if self.mode == EditorMode::Full
2453 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
2454 {
2455 return;
2456 }
2457
2458 cx.propagate();
2459 }
2460
2461 pub fn dismiss_menus_and_popups(
2462 &mut self,
2463 should_report_inline_completion_event: bool,
2464 cx: &mut ViewContext<Self>,
2465 ) -> bool {
2466 if self.take_rename(false, cx).is_some() {
2467 return true;
2468 }
2469
2470 if hide_hover(self, cx) {
2471 return true;
2472 }
2473
2474 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2475 return true;
2476 }
2477
2478 if self.hide_context_menu(cx).is_some() {
2479 if self.show_inline_completions_in_menu(cx) && self.has_active_inline_completion() {
2480 self.update_visible_inline_completion(cx);
2481 }
2482 return true;
2483 }
2484
2485 if self.mouse_context_menu.take().is_some() {
2486 return true;
2487 }
2488
2489 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2490 return true;
2491 }
2492
2493 if self.snippet_stack.pop().is_some() {
2494 return true;
2495 }
2496
2497 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
2498 self.dismiss_diagnostics(cx);
2499 return true;
2500 }
2501
2502 false
2503 }
2504
2505 fn linked_editing_ranges_for(
2506 &self,
2507 selection: Range<text::Anchor>,
2508 cx: &AppContext,
2509 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2510 if self.linked_edit_ranges.is_empty() {
2511 return None;
2512 }
2513 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2514 selection.end.buffer_id.and_then(|end_buffer_id| {
2515 if selection.start.buffer_id != Some(end_buffer_id) {
2516 return None;
2517 }
2518 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2519 let snapshot = buffer.read(cx).snapshot();
2520 self.linked_edit_ranges
2521 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2522 .map(|ranges| (ranges, snapshot, buffer))
2523 })?;
2524 use text::ToOffset as TO;
2525 // find offset from the start of current range to current cursor position
2526 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2527
2528 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2529 let start_difference = start_offset - start_byte_offset;
2530 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2531 let end_difference = end_offset - start_byte_offset;
2532 // Current range has associated linked ranges.
2533 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2534 for range in linked_ranges.iter() {
2535 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2536 let end_offset = start_offset + end_difference;
2537 let start_offset = start_offset + start_difference;
2538 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2539 continue;
2540 }
2541 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
2542 if s.start.buffer_id != selection.start.buffer_id
2543 || s.end.buffer_id != selection.end.buffer_id
2544 {
2545 return false;
2546 }
2547 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
2548 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
2549 }) {
2550 continue;
2551 }
2552 let start = buffer_snapshot.anchor_after(start_offset);
2553 let end = buffer_snapshot.anchor_after(end_offset);
2554 linked_edits
2555 .entry(buffer.clone())
2556 .or_default()
2557 .push(start..end);
2558 }
2559 Some(linked_edits)
2560 }
2561
2562 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2563 let text: Arc<str> = text.into();
2564
2565 if self.read_only(cx) {
2566 return;
2567 }
2568
2569 let selections = self.selections.all_adjusted(cx);
2570 let mut bracket_inserted = false;
2571 let mut edits = Vec::new();
2572 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2573 let mut new_selections = Vec::with_capacity(selections.len());
2574 let mut new_autoclose_regions = Vec::new();
2575 let snapshot = self.buffer.read(cx).read(cx);
2576
2577 for (selection, autoclose_region) in
2578 self.selections_with_autoclose_regions(selections, &snapshot)
2579 {
2580 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2581 // Determine if the inserted text matches the opening or closing
2582 // bracket of any of this language's bracket pairs.
2583 let mut bracket_pair = None;
2584 let mut is_bracket_pair_start = false;
2585 let mut is_bracket_pair_end = false;
2586 if !text.is_empty() {
2587 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2588 // and they are removing the character that triggered IME popup.
2589 for (pair, enabled) in scope.brackets() {
2590 if !pair.close && !pair.surround {
2591 continue;
2592 }
2593
2594 if enabled && pair.start.ends_with(text.as_ref()) {
2595 let prefix_len = pair.start.len() - text.len();
2596 let preceding_text_matches_prefix = prefix_len == 0
2597 || (selection.start.column >= (prefix_len as u32)
2598 && snapshot.contains_str_at(
2599 Point::new(
2600 selection.start.row,
2601 selection.start.column - (prefix_len as u32),
2602 ),
2603 &pair.start[..prefix_len],
2604 ));
2605 if preceding_text_matches_prefix {
2606 bracket_pair = Some(pair.clone());
2607 is_bracket_pair_start = true;
2608 break;
2609 }
2610 }
2611 if pair.end.as_str() == text.as_ref() {
2612 bracket_pair = Some(pair.clone());
2613 is_bracket_pair_end = true;
2614 break;
2615 }
2616 }
2617 }
2618
2619 if let Some(bracket_pair) = bracket_pair {
2620 let snapshot_settings = snapshot.settings_at(selection.start, cx);
2621 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
2622 let auto_surround =
2623 self.use_auto_surround && snapshot_settings.use_auto_surround;
2624 if selection.is_empty() {
2625 if is_bracket_pair_start {
2626 // If the inserted text is a suffix of an opening bracket and the
2627 // selection is preceded by the rest of the opening bracket, then
2628 // insert the closing bracket.
2629 let following_text_allows_autoclose = snapshot
2630 .chars_at(selection.start)
2631 .next()
2632 .map_or(true, |c| scope.should_autoclose_before(c));
2633
2634 let is_closing_quote = if bracket_pair.end == bracket_pair.start
2635 && bracket_pair.start.len() == 1
2636 {
2637 let target = bracket_pair.start.chars().next().unwrap();
2638 let current_line_count = snapshot
2639 .reversed_chars_at(selection.start)
2640 .take_while(|&c| c != '\n')
2641 .filter(|&c| c == target)
2642 .count();
2643 current_line_count % 2 == 1
2644 } else {
2645 false
2646 };
2647
2648 if autoclose
2649 && bracket_pair.close
2650 && following_text_allows_autoclose
2651 && !is_closing_quote
2652 {
2653 let anchor = snapshot.anchor_before(selection.end);
2654 new_selections.push((selection.map(|_| anchor), text.len()));
2655 new_autoclose_regions.push((
2656 anchor,
2657 text.len(),
2658 selection.id,
2659 bracket_pair.clone(),
2660 ));
2661 edits.push((
2662 selection.range(),
2663 format!("{}{}", text, bracket_pair.end).into(),
2664 ));
2665 bracket_inserted = true;
2666 continue;
2667 }
2668 }
2669
2670 if let Some(region) = autoclose_region {
2671 // If the selection is followed by an auto-inserted closing bracket,
2672 // then don't insert that closing bracket again; just move the selection
2673 // past the closing bracket.
2674 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2675 && text.as_ref() == region.pair.end.as_str();
2676 if should_skip {
2677 let anchor = snapshot.anchor_after(selection.end);
2678 new_selections
2679 .push((selection.map(|_| anchor), region.pair.end.len()));
2680 continue;
2681 }
2682 }
2683
2684 let always_treat_brackets_as_autoclosed = snapshot
2685 .settings_at(selection.start, cx)
2686 .always_treat_brackets_as_autoclosed;
2687 if always_treat_brackets_as_autoclosed
2688 && is_bracket_pair_end
2689 && snapshot.contains_str_at(selection.end, text.as_ref())
2690 {
2691 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2692 // and the inserted text is a closing bracket and the selection is followed
2693 // by the closing bracket then move the selection past the closing bracket.
2694 let anchor = snapshot.anchor_after(selection.end);
2695 new_selections.push((selection.map(|_| anchor), text.len()));
2696 continue;
2697 }
2698 }
2699 // If an opening bracket is 1 character long and is typed while
2700 // text is selected, then surround that text with the bracket pair.
2701 else if auto_surround
2702 && bracket_pair.surround
2703 && is_bracket_pair_start
2704 && bracket_pair.start.chars().count() == 1
2705 {
2706 edits.push((selection.start..selection.start, text.clone()));
2707 edits.push((
2708 selection.end..selection.end,
2709 bracket_pair.end.as_str().into(),
2710 ));
2711 bracket_inserted = true;
2712 new_selections.push((
2713 Selection {
2714 id: selection.id,
2715 start: snapshot.anchor_after(selection.start),
2716 end: snapshot.anchor_before(selection.end),
2717 reversed: selection.reversed,
2718 goal: selection.goal,
2719 },
2720 0,
2721 ));
2722 continue;
2723 }
2724 }
2725 }
2726
2727 if self.auto_replace_emoji_shortcode
2728 && selection.is_empty()
2729 && text.as_ref().ends_with(':')
2730 {
2731 if let Some(possible_emoji_short_code) =
2732 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2733 {
2734 if !possible_emoji_short_code.is_empty() {
2735 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2736 let emoji_shortcode_start = Point::new(
2737 selection.start.row,
2738 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2739 );
2740
2741 // Remove shortcode from buffer
2742 edits.push((
2743 emoji_shortcode_start..selection.start,
2744 "".to_string().into(),
2745 ));
2746 new_selections.push((
2747 Selection {
2748 id: selection.id,
2749 start: snapshot.anchor_after(emoji_shortcode_start),
2750 end: snapshot.anchor_before(selection.start),
2751 reversed: selection.reversed,
2752 goal: selection.goal,
2753 },
2754 0,
2755 ));
2756
2757 // Insert emoji
2758 let selection_start_anchor = snapshot.anchor_after(selection.start);
2759 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2760 edits.push((selection.start..selection.end, emoji.to_string().into()));
2761
2762 continue;
2763 }
2764 }
2765 }
2766 }
2767
2768 // If not handling any auto-close operation, then just replace the selected
2769 // text with the given input and move the selection to the end of the
2770 // newly inserted text.
2771 let anchor = snapshot.anchor_after(selection.end);
2772 if !self.linked_edit_ranges.is_empty() {
2773 let start_anchor = snapshot.anchor_before(selection.start);
2774
2775 let is_word_char = text.chars().next().map_or(true, |char| {
2776 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
2777 classifier.is_word(char)
2778 });
2779
2780 if is_word_char {
2781 if let Some(ranges) = self
2782 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
2783 {
2784 for (buffer, edits) in ranges {
2785 linked_edits
2786 .entry(buffer.clone())
2787 .or_default()
2788 .extend(edits.into_iter().map(|range| (range, text.clone())));
2789 }
2790 }
2791 }
2792 }
2793
2794 new_selections.push((selection.map(|_| anchor), 0));
2795 edits.push((selection.start..selection.end, text.clone()));
2796 }
2797
2798 drop(snapshot);
2799
2800 self.transact(cx, |this, cx| {
2801 this.buffer.update(cx, |buffer, cx| {
2802 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2803 });
2804 for (buffer, edits) in linked_edits {
2805 buffer.update(cx, |buffer, cx| {
2806 let snapshot = buffer.snapshot();
2807 let edits = edits
2808 .into_iter()
2809 .map(|(range, text)| {
2810 use text::ToPoint as TP;
2811 let end_point = TP::to_point(&range.end, &snapshot);
2812 let start_point = TP::to_point(&range.start, &snapshot);
2813 (start_point..end_point, text)
2814 })
2815 .sorted_by_key(|(range, _)| range.start)
2816 .collect::<Vec<_>>();
2817 buffer.edit(edits, None, cx);
2818 })
2819 }
2820 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2821 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2822 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
2823 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
2824 .zip(new_selection_deltas)
2825 .map(|(selection, delta)| Selection {
2826 id: selection.id,
2827 start: selection.start + delta,
2828 end: selection.end + delta,
2829 reversed: selection.reversed,
2830 goal: SelectionGoal::None,
2831 })
2832 .collect::<Vec<_>>();
2833
2834 let mut i = 0;
2835 for (position, delta, selection_id, pair) in new_autoclose_regions {
2836 let position = position.to_offset(&map.buffer_snapshot) + delta;
2837 let start = map.buffer_snapshot.anchor_before(position);
2838 let end = map.buffer_snapshot.anchor_after(position);
2839 while let Some(existing_state) = this.autoclose_regions.get(i) {
2840 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
2841 Ordering::Less => i += 1,
2842 Ordering::Greater => break,
2843 Ordering::Equal => {
2844 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
2845 Ordering::Less => i += 1,
2846 Ordering::Equal => break,
2847 Ordering::Greater => break,
2848 }
2849 }
2850 }
2851 }
2852 this.autoclose_regions.insert(
2853 i,
2854 AutocloseRegion {
2855 selection_id,
2856 range: start..end,
2857 pair,
2858 },
2859 );
2860 }
2861
2862 let had_active_inline_completion = this.has_active_inline_completion();
2863 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
2864 s.select(new_selections)
2865 });
2866
2867 if !bracket_inserted {
2868 if let Some(on_type_format_task) =
2869 this.trigger_on_type_formatting(text.to_string(), cx)
2870 {
2871 on_type_format_task.detach_and_log_err(cx);
2872 }
2873 }
2874
2875 let editor_settings = EditorSettings::get_global(cx);
2876 if bracket_inserted
2877 && (editor_settings.auto_signature_help
2878 || editor_settings.show_signature_help_after_edits)
2879 {
2880 this.show_signature_help(&ShowSignatureHelp, cx);
2881 }
2882
2883 let trigger_in_words =
2884 this.show_inline_completions_in_menu(cx) || !had_active_inline_completion;
2885 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2886 linked_editing_ranges::refresh_linked_ranges(this, cx);
2887 this.refresh_inline_completion(true, false, cx);
2888 });
2889 }
2890
2891 fn find_possible_emoji_shortcode_at_position(
2892 snapshot: &MultiBufferSnapshot,
2893 position: Point,
2894 ) -> Option<String> {
2895 let mut chars = Vec::new();
2896 let mut found_colon = false;
2897 for char in snapshot.reversed_chars_at(position).take(100) {
2898 // Found a possible emoji shortcode in the middle of the buffer
2899 if found_colon {
2900 if char.is_whitespace() {
2901 chars.reverse();
2902 return Some(chars.iter().collect());
2903 }
2904 // If the previous character is not a whitespace, we are in the middle of a word
2905 // and we only want to complete the shortcode if the word is made up of other emojis
2906 let mut containing_word = String::new();
2907 for ch in snapshot
2908 .reversed_chars_at(position)
2909 .skip(chars.len() + 1)
2910 .take(100)
2911 {
2912 if ch.is_whitespace() {
2913 break;
2914 }
2915 containing_word.push(ch);
2916 }
2917 let containing_word = containing_word.chars().rev().collect::<String>();
2918 if util::word_consists_of_emojis(containing_word.as_str()) {
2919 chars.reverse();
2920 return Some(chars.iter().collect());
2921 }
2922 }
2923
2924 if char.is_whitespace() || !char.is_ascii() {
2925 return None;
2926 }
2927 if char == ':' {
2928 found_colon = true;
2929 } else {
2930 chars.push(char);
2931 }
2932 }
2933 // Found a possible emoji shortcode at the beginning of the buffer
2934 chars.reverse();
2935 Some(chars.iter().collect())
2936 }
2937
2938 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2939 self.transact(cx, |this, cx| {
2940 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2941 let selections = this.selections.all::<usize>(cx);
2942 let multi_buffer = this.buffer.read(cx);
2943 let buffer = multi_buffer.snapshot(cx);
2944 selections
2945 .iter()
2946 .map(|selection| {
2947 let start_point = selection.start.to_point(&buffer);
2948 let mut indent =
2949 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
2950 indent.len = cmp::min(indent.len, start_point.column);
2951 let start = selection.start;
2952 let end = selection.end;
2953 let selection_is_empty = start == end;
2954 let language_scope = buffer.language_scope_at(start);
2955 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2956 &language_scope
2957 {
2958 let leading_whitespace_len = buffer
2959 .reversed_chars_at(start)
2960 .take_while(|c| c.is_whitespace() && *c != '\n')
2961 .map(|c| c.len_utf8())
2962 .sum::<usize>();
2963
2964 let trailing_whitespace_len = buffer
2965 .chars_at(end)
2966 .take_while(|c| c.is_whitespace() && *c != '\n')
2967 .map(|c| c.len_utf8())
2968 .sum::<usize>();
2969
2970 let insert_extra_newline =
2971 language.brackets().any(|(pair, enabled)| {
2972 let pair_start = pair.start.trim_end();
2973 let pair_end = pair.end.trim_start();
2974
2975 enabled
2976 && pair.newline
2977 && buffer.contains_str_at(
2978 end + trailing_whitespace_len,
2979 pair_end,
2980 )
2981 && buffer.contains_str_at(
2982 (start - leading_whitespace_len)
2983 .saturating_sub(pair_start.len()),
2984 pair_start,
2985 )
2986 });
2987
2988 // Comment extension on newline is allowed only for cursor selections
2989 let comment_delimiter = maybe!({
2990 if !selection_is_empty {
2991 return None;
2992 }
2993
2994 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
2995 return None;
2996 }
2997
2998 let delimiters = language.line_comment_prefixes();
2999 let max_len_of_delimiter =
3000 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3001 let (snapshot, range) =
3002 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3003
3004 let mut index_of_first_non_whitespace = 0;
3005 let comment_candidate = snapshot
3006 .chars_for_range(range)
3007 .skip_while(|c| {
3008 let should_skip = c.is_whitespace();
3009 if should_skip {
3010 index_of_first_non_whitespace += 1;
3011 }
3012 should_skip
3013 })
3014 .take(max_len_of_delimiter)
3015 .collect::<String>();
3016 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3017 comment_candidate.starts_with(comment_prefix.as_ref())
3018 })?;
3019 let cursor_is_placed_after_comment_marker =
3020 index_of_first_non_whitespace + comment_prefix.len()
3021 <= start_point.column as usize;
3022 if cursor_is_placed_after_comment_marker {
3023 Some(comment_prefix.clone())
3024 } else {
3025 None
3026 }
3027 });
3028 (comment_delimiter, insert_extra_newline)
3029 } else {
3030 (None, false)
3031 };
3032
3033 let capacity_for_delimiter = comment_delimiter
3034 .as_deref()
3035 .map(str::len)
3036 .unwrap_or_default();
3037 let mut new_text =
3038 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3039 new_text.push('\n');
3040 new_text.extend(indent.chars());
3041 if let Some(delimiter) = &comment_delimiter {
3042 new_text.push_str(delimiter);
3043 }
3044 if insert_extra_newline {
3045 new_text = new_text.repeat(2);
3046 }
3047
3048 let anchor = buffer.anchor_after(end);
3049 let new_selection = selection.map(|_| anchor);
3050 (
3051 (start..end, new_text),
3052 (insert_extra_newline, new_selection),
3053 )
3054 })
3055 .unzip()
3056 };
3057
3058 this.edit_with_autoindent(edits, cx);
3059 let buffer = this.buffer.read(cx).snapshot(cx);
3060 let new_selections = selection_fixup_info
3061 .into_iter()
3062 .map(|(extra_newline_inserted, new_selection)| {
3063 let mut cursor = new_selection.end.to_point(&buffer);
3064 if extra_newline_inserted {
3065 cursor.row -= 1;
3066 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3067 }
3068 new_selection.map(|_| cursor)
3069 })
3070 .collect();
3071
3072 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3073 this.refresh_inline_completion(true, false, cx);
3074 });
3075 }
3076
3077 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3078 let buffer = self.buffer.read(cx);
3079 let snapshot = buffer.snapshot(cx);
3080
3081 let mut edits = Vec::new();
3082 let mut rows = Vec::new();
3083
3084 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3085 let cursor = selection.head();
3086 let row = cursor.row;
3087
3088 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3089
3090 let newline = "\n".to_string();
3091 edits.push((start_of_line..start_of_line, newline));
3092
3093 rows.push(row + rows_inserted as u32);
3094 }
3095
3096 self.transact(cx, |editor, cx| {
3097 editor.edit(edits, cx);
3098
3099 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3100 let mut index = 0;
3101 s.move_cursors_with(|map, _, _| {
3102 let row = rows[index];
3103 index += 1;
3104
3105 let point = Point::new(row, 0);
3106 let boundary = map.next_line_boundary(point).1;
3107 let clipped = map.clip_point(boundary, Bias::Left);
3108
3109 (clipped, SelectionGoal::None)
3110 });
3111 });
3112
3113 let mut indent_edits = Vec::new();
3114 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3115 for row in rows {
3116 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3117 for (row, indent) in indents {
3118 if indent.len == 0 {
3119 continue;
3120 }
3121
3122 let text = match indent.kind {
3123 IndentKind::Space => " ".repeat(indent.len as usize),
3124 IndentKind::Tab => "\t".repeat(indent.len as usize),
3125 };
3126 let point = Point::new(row.0, 0);
3127 indent_edits.push((point..point, text));
3128 }
3129 }
3130 editor.edit(indent_edits, cx);
3131 });
3132 }
3133
3134 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3135 let buffer = self.buffer.read(cx);
3136 let snapshot = buffer.snapshot(cx);
3137
3138 let mut edits = Vec::new();
3139 let mut rows = Vec::new();
3140 let mut rows_inserted = 0;
3141
3142 for selection in self.selections.all_adjusted(cx) {
3143 let cursor = selection.head();
3144 let row = cursor.row;
3145
3146 let point = Point::new(row + 1, 0);
3147 let start_of_line = snapshot.clip_point(point, Bias::Left);
3148
3149 let newline = "\n".to_string();
3150 edits.push((start_of_line..start_of_line, newline));
3151
3152 rows_inserted += 1;
3153 rows.push(row + rows_inserted);
3154 }
3155
3156 self.transact(cx, |editor, cx| {
3157 editor.edit(edits, cx);
3158
3159 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3160 let mut index = 0;
3161 s.move_cursors_with(|map, _, _| {
3162 let row = rows[index];
3163 index += 1;
3164
3165 let point = Point::new(row, 0);
3166 let boundary = map.next_line_boundary(point).1;
3167 let clipped = map.clip_point(boundary, Bias::Left);
3168
3169 (clipped, SelectionGoal::None)
3170 });
3171 });
3172
3173 let mut indent_edits = Vec::new();
3174 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3175 for row in rows {
3176 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3177 for (row, indent) in indents {
3178 if indent.len == 0 {
3179 continue;
3180 }
3181
3182 let text = match indent.kind {
3183 IndentKind::Space => " ".repeat(indent.len as usize),
3184 IndentKind::Tab => "\t".repeat(indent.len as usize),
3185 };
3186 let point = Point::new(row.0, 0);
3187 indent_edits.push((point..point, text));
3188 }
3189 }
3190 editor.edit(indent_edits, cx);
3191 });
3192 }
3193
3194 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3195 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3196 original_indent_columns: Vec::new(),
3197 });
3198 self.insert_with_autoindent_mode(text, autoindent, cx);
3199 }
3200
3201 fn insert_with_autoindent_mode(
3202 &mut self,
3203 text: &str,
3204 autoindent_mode: Option<AutoindentMode>,
3205 cx: &mut ViewContext<Self>,
3206 ) {
3207 if self.read_only(cx) {
3208 return;
3209 }
3210
3211 let text: Arc<str> = text.into();
3212 self.transact(cx, |this, cx| {
3213 let old_selections = this.selections.all_adjusted(cx);
3214 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3215 let anchors = {
3216 let snapshot = buffer.read(cx);
3217 old_selections
3218 .iter()
3219 .map(|s| {
3220 let anchor = snapshot.anchor_after(s.head());
3221 s.map(|_| anchor)
3222 })
3223 .collect::<Vec<_>>()
3224 };
3225 buffer.edit(
3226 old_selections
3227 .iter()
3228 .map(|s| (s.start..s.end, text.clone())),
3229 autoindent_mode,
3230 cx,
3231 );
3232 anchors
3233 });
3234
3235 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3236 s.select_anchors(selection_anchors);
3237 })
3238 });
3239 }
3240
3241 fn trigger_completion_on_input(
3242 &mut self,
3243 text: &str,
3244 trigger_in_words: bool,
3245 cx: &mut ViewContext<Self>,
3246 ) {
3247 if self.is_completion_trigger(text, trigger_in_words, cx) {
3248 self.show_completions(
3249 &ShowCompletions {
3250 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3251 },
3252 cx,
3253 );
3254 } else {
3255 self.hide_context_menu(cx);
3256 }
3257 }
3258
3259 fn is_completion_trigger(
3260 &self,
3261 text: &str,
3262 trigger_in_words: bool,
3263 cx: &mut ViewContext<Self>,
3264 ) -> bool {
3265 let position = self.selections.newest_anchor().head();
3266 let multibuffer = self.buffer.read(cx);
3267 let Some(buffer) = position
3268 .buffer_id
3269 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3270 else {
3271 return false;
3272 };
3273
3274 if let Some(completion_provider) = &self.completion_provider {
3275 completion_provider.is_completion_trigger(
3276 &buffer,
3277 position.text_anchor,
3278 text,
3279 trigger_in_words,
3280 cx,
3281 )
3282 } else {
3283 false
3284 }
3285 }
3286
3287 /// If any empty selections is touching the start of its innermost containing autoclose
3288 /// region, expand it to select the brackets.
3289 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3290 let selections = self.selections.all::<usize>(cx);
3291 let buffer = self.buffer.read(cx).read(cx);
3292 let new_selections = self
3293 .selections_with_autoclose_regions(selections, &buffer)
3294 .map(|(mut selection, region)| {
3295 if !selection.is_empty() {
3296 return selection;
3297 }
3298
3299 if let Some(region) = region {
3300 let mut range = region.range.to_offset(&buffer);
3301 if selection.start == range.start && range.start >= region.pair.start.len() {
3302 range.start -= region.pair.start.len();
3303 if buffer.contains_str_at(range.start, ®ion.pair.start)
3304 && buffer.contains_str_at(range.end, ®ion.pair.end)
3305 {
3306 range.end += region.pair.end.len();
3307 selection.start = range.start;
3308 selection.end = range.end;
3309
3310 return selection;
3311 }
3312 }
3313 }
3314
3315 let always_treat_brackets_as_autoclosed = buffer
3316 .settings_at(selection.start, cx)
3317 .always_treat_brackets_as_autoclosed;
3318
3319 if !always_treat_brackets_as_autoclosed {
3320 return selection;
3321 }
3322
3323 if let Some(scope) = buffer.language_scope_at(selection.start) {
3324 for (pair, enabled) in scope.brackets() {
3325 if !enabled || !pair.close {
3326 continue;
3327 }
3328
3329 if buffer.contains_str_at(selection.start, &pair.end) {
3330 let pair_start_len = pair.start.len();
3331 if buffer.contains_str_at(
3332 selection.start.saturating_sub(pair_start_len),
3333 &pair.start,
3334 ) {
3335 selection.start -= pair_start_len;
3336 selection.end += pair.end.len();
3337
3338 return selection;
3339 }
3340 }
3341 }
3342 }
3343
3344 selection
3345 })
3346 .collect();
3347
3348 drop(buffer);
3349 self.change_selections(None, cx, |selections| selections.select(new_selections));
3350 }
3351
3352 /// Iterate the given selections, and for each one, find the smallest surrounding
3353 /// autoclose region. This uses the ordering of the selections and the autoclose
3354 /// regions to avoid repeated comparisons.
3355 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3356 &'a self,
3357 selections: impl IntoIterator<Item = Selection<D>>,
3358 buffer: &'a MultiBufferSnapshot,
3359 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3360 let mut i = 0;
3361 let mut regions = self.autoclose_regions.as_slice();
3362 selections.into_iter().map(move |selection| {
3363 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3364
3365 let mut enclosing = None;
3366 while let Some(pair_state) = regions.get(i) {
3367 if pair_state.range.end.to_offset(buffer) < range.start {
3368 regions = ®ions[i + 1..];
3369 i = 0;
3370 } else if pair_state.range.start.to_offset(buffer) > range.end {
3371 break;
3372 } else {
3373 if pair_state.selection_id == selection.id {
3374 enclosing = Some(pair_state);
3375 }
3376 i += 1;
3377 }
3378 }
3379
3380 (selection, enclosing)
3381 })
3382 }
3383
3384 /// Remove any autoclose regions that no longer contain their selection.
3385 fn invalidate_autoclose_regions(
3386 &mut self,
3387 mut selections: &[Selection<Anchor>],
3388 buffer: &MultiBufferSnapshot,
3389 ) {
3390 self.autoclose_regions.retain(|state| {
3391 let mut i = 0;
3392 while let Some(selection) = selections.get(i) {
3393 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3394 selections = &selections[1..];
3395 continue;
3396 }
3397 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3398 break;
3399 }
3400 if selection.id == state.selection_id {
3401 return true;
3402 } else {
3403 i += 1;
3404 }
3405 }
3406 false
3407 });
3408 }
3409
3410 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3411 let offset = position.to_offset(buffer);
3412 let (word_range, kind) = buffer.surrounding_word(offset, true);
3413 if offset > word_range.start && kind == Some(CharKind::Word) {
3414 Some(
3415 buffer
3416 .text_for_range(word_range.start..offset)
3417 .collect::<String>(),
3418 )
3419 } else {
3420 None
3421 }
3422 }
3423
3424 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3425 self.refresh_inlay_hints(
3426 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3427 cx,
3428 );
3429 }
3430
3431 pub fn inlay_hints_enabled(&self) -> bool {
3432 self.inlay_hint_cache.enabled
3433 }
3434
3435 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3436 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
3437 return;
3438 }
3439
3440 let reason_description = reason.description();
3441 let ignore_debounce = matches!(
3442 reason,
3443 InlayHintRefreshReason::SettingsChange(_)
3444 | InlayHintRefreshReason::Toggle(_)
3445 | InlayHintRefreshReason::ExcerptsRemoved(_)
3446 );
3447 let (invalidate_cache, required_languages) = match reason {
3448 InlayHintRefreshReason::Toggle(enabled) => {
3449 self.inlay_hint_cache.enabled = enabled;
3450 if enabled {
3451 (InvalidationStrategy::RefreshRequested, None)
3452 } else {
3453 self.inlay_hint_cache.clear();
3454 self.splice_inlays(
3455 self.visible_inlay_hints(cx)
3456 .iter()
3457 .map(|inlay| inlay.id)
3458 .collect(),
3459 Vec::new(),
3460 cx,
3461 );
3462 return;
3463 }
3464 }
3465 InlayHintRefreshReason::SettingsChange(new_settings) => {
3466 match self.inlay_hint_cache.update_settings(
3467 &self.buffer,
3468 new_settings,
3469 self.visible_inlay_hints(cx),
3470 cx,
3471 ) {
3472 ControlFlow::Break(Some(InlaySplice {
3473 to_remove,
3474 to_insert,
3475 })) => {
3476 self.splice_inlays(to_remove, to_insert, cx);
3477 return;
3478 }
3479 ControlFlow::Break(None) => return,
3480 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3481 }
3482 }
3483 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3484 if let Some(InlaySplice {
3485 to_remove,
3486 to_insert,
3487 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3488 {
3489 self.splice_inlays(to_remove, to_insert, cx);
3490 }
3491 return;
3492 }
3493 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3494 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3495 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3496 }
3497 InlayHintRefreshReason::RefreshRequested => {
3498 (InvalidationStrategy::RefreshRequested, None)
3499 }
3500 };
3501
3502 if let Some(InlaySplice {
3503 to_remove,
3504 to_insert,
3505 }) = self.inlay_hint_cache.spawn_hint_refresh(
3506 reason_description,
3507 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3508 invalidate_cache,
3509 ignore_debounce,
3510 cx,
3511 ) {
3512 self.splice_inlays(to_remove, to_insert, cx);
3513 }
3514 }
3515
3516 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3517 self.display_map
3518 .read(cx)
3519 .current_inlays()
3520 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3521 .cloned()
3522 .collect()
3523 }
3524
3525 pub fn excerpts_for_inlay_hints_query(
3526 &self,
3527 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3528 cx: &mut ViewContext<Editor>,
3529 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3530 let Some(project) = self.project.as_ref() else {
3531 return HashMap::default();
3532 };
3533 let project = project.read(cx);
3534 let multi_buffer = self.buffer().read(cx);
3535 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3536 let multi_buffer_visible_start = self
3537 .scroll_manager
3538 .anchor()
3539 .anchor
3540 .to_point(&multi_buffer_snapshot);
3541 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3542 multi_buffer_visible_start
3543 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3544 Bias::Left,
3545 );
3546 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3547 multi_buffer
3548 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3549 .into_iter()
3550 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3551 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3552 let buffer = buffer_handle.read(cx);
3553 let buffer_file = project::File::from_dyn(buffer.file())?;
3554 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3555 let worktree_entry = buffer_worktree
3556 .read(cx)
3557 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3558 if worktree_entry.is_ignored {
3559 return None;
3560 }
3561
3562 let language = buffer.language()?;
3563 if let Some(restrict_to_languages) = restrict_to_languages {
3564 if !restrict_to_languages.contains(language) {
3565 return None;
3566 }
3567 }
3568 Some((
3569 excerpt_id,
3570 (
3571 buffer_handle,
3572 buffer.version().clone(),
3573 excerpt_visible_range,
3574 ),
3575 ))
3576 })
3577 .collect()
3578 }
3579
3580 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3581 TextLayoutDetails {
3582 text_system: cx.text_system().clone(),
3583 editor_style: self.style.clone().unwrap(),
3584 rem_size: cx.rem_size(),
3585 scroll_anchor: self.scroll_manager.anchor(),
3586 visible_rows: self.visible_line_count(),
3587 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3588 }
3589 }
3590
3591 fn splice_inlays(
3592 &self,
3593 to_remove: Vec<InlayId>,
3594 to_insert: Vec<Inlay>,
3595 cx: &mut ViewContext<Self>,
3596 ) {
3597 self.display_map.update(cx, |display_map, cx| {
3598 display_map.splice_inlays(to_remove, to_insert, cx)
3599 });
3600 cx.notify();
3601 }
3602
3603 fn trigger_on_type_formatting(
3604 &self,
3605 input: String,
3606 cx: &mut ViewContext<Self>,
3607 ) -> Option<Task<Result<()>>> {
3608 if input.len() != 1 {
3609 return None;
3610 }
3611
3612 let project = self.project.as_ref()?;
3613 let position = self.selections.newest_anchor().head();
3614 let (buffer, buffer_position) = self
3615 .buffer
3616 .read(cx)
3617 .text_anchor_for_position(position, cx)?;
3618
3619 let settings = language_settings::language_settings(
3620 buffer
3621 .read(cx)
3622 .language_at(buffer_position)
3623 .map(|l| l.name()),
3624 buffer.read(cx).file(),
3625 cx,
3626 );
3627 if !settings.use_on_type_format {
3628 return None;
3629 }
3630
3631 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3632 // hence we do LSP request & edit on host side only — add formats to host's history.
3633 let push_to_lsp_host_history = true;
3634 // If this is not the host, append its history with new edits.
3635 let push_to_client_history = project.read(cx).is_via_collab();
3636
3637 let on_type_formatting = project.update(cx, |project, cx| {
3638 project.on_type_format(
3639 buffer.clone(),
3640 buffer_position,
3641 input,
3642 push_to_lsp_host_history,
3643 cx,
3644 )
3645 });
3646 Some(cx.spawn(|editor, mut cx| async move {
3647 if let Some(transaction) = on_type_formatting.await? {
3648 if push_to_client_history {
3649 buffer
3650 .update(&mut cx, |buffer, _| {
3651 buffer.push_transaction(transaction, Instant::now());
3652 })
3653 .ok();
3654 }
3655 editor.update(&mut cx, |editor, cx| {
3656 editor.refresh_document_highlights(cx);
3657 })?;
3658 }
3659 Ok(())
3660 }))
3661 }
3662
3663 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
3664 if self.pending_rename.is_some() {
3665 return;
3666 }
3667
3668 let Some(provider) = self.completion_provider.as_ref() else {
3669 return;
3670 };
3671
3672 if !self.snippet_stack.is_empty() && self.context_menu.borrow().as_ref().is_some() {
3673 return;
3674 }
3675
3676 let position = self.selections.newest_anchor().head();
3677 let (buffer, buffer_position) =
3678 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3679 output
3680 } else {
3681 return;
3682 };
3683 let show_completion_documentation = buffer
3684 .read(cx)
3685 .snapshot()
3686 .settings_at(buffer_position, cx)
3687 .show_completion_documentation;
3688
3689 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3690
3691 let trigger_kind = match &options.trigger {
3692 Some(trigger) if buffer.read(cx).completion_triggers().contains(trigger) => {
3693 CompletionTriggerKind::TRIGGER_CHARACTER
3694 }
3695 _ => CompletionTriggerKind::INVOKED,
3696 };
3697 let completion_context = CompletionContext {
3698 trigger_character: options.trigger.as_ref().and_then(|trigger| {
3699 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
3700 Some(String::from(trigger))
3701 } else {
3702 None
3703 }
3704 }),
3705 trigger_kind,
3706 };
3707 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
3708 let sort_completions = provider.sort_completions();
3709
3710 let id = post_inc(&mut self.next_completion_id);
3711 let task = cx.spawn(|editor, mut cx| {
3712 async move {
3713 editor.update(&mut cx, |this, _| {
3714 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3715 })?;
3716 let completions = completions.await.log_err();
3717 let menu = if let Some(completions) = completions {
3718 let mut menu = CompletionsMenu::new(
3719 id,
3720 sort_completions,
3721 show_completion_documentation,
3722 position,
3723 buffer.clone(),
3724 completions.into(),
3725 );
3726
3727 menu.filter(query.as_deref(), cx.background_executor().clone())
3728 .await;
3729
3730 menu.visible().then_some(menu)
3731 } else {
3732 None
3733 };
3734
3735 editor.update(&mut cx, |editor, cx| {
3736 match editor.context_menu.borrow().as_ref() {
3737 None => {}
3738 Some(CodeContextMenu::Completions(prev_menu)) => {
3739 if prev_menu.id > id {
3740 return;
3741 }
3742 }
3743 _ => return,
3744 }
3745
3746 if editor.focus_handle.is_focused(cx) && menu.is_some() {
3747 let mut menu = menu.unwrap();
3748 menu.resolve_visible_completions(editor.completion_provider.as_deref(), cx);
3749
3750 if editor.show_inline_completions_in_menu(cx) {
3751 if let Some(hint) = editor.inline_completion_menu_hint(cx) {
3752 menu.show_inline_completion_hint(hint);
3753 }
3754 } else {
3755 editor.discard_inline_completion(false, cx);
3756 }
3757
3758 *editor.context_menu.borrow_mut() =
3759 Some(CodeContextMenu::Completions(menu));
3760
3761 cx.notify();
3762 } else if editor.completion_tasks.len() <= 1 {
3763 // If there are no more completion tasks and the last menu was
3764 // empty, we should hide it.
3765 let was_hidden = editor.hide_context_menu(cx).is_none();
3766 // If it was already hidden and we don't show inline
3767 // completions in the menu, we should also show the
3768 // inline-completion when available.
3769 if was_hidden && editor.show_inline_completions_in_menu(cx) {
3770 editor.update_visible_inline_completion(cx);
3771 }
3772 }
3773 })?;
3774
3775 Ok::<_, anyhow::Error>(())
3776 }
3777 .log_err()
3778 });
3779
3780 self.completion_tasks.push((id, task));
3781 }
3782
3783 pub fn confirm_completion(
3784 &mut self,
3785 action: &ConfirmCompletion,
3786 cx: &mut ViewContext<Self>,
3787 ) -> Option<Task<Result<()>>> {
3788 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
3789 }
3790
3791 pub fn compose_completion(
3792 &mut self,
3793 action: &ComposeCompletion,
3794 cx: &mut ViewContext<Self>,
3795 ) -> Option<Task<Result<()>>> {
3796 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
3797 }
3798
3799 fn do_completion(
3800 &mut self,
3801 item_ix: Option<usize>,
3802 intent: CompletionIntent,
3803 cx: &mut ViewContext<Editor>,
3804 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
3805 use language::ToOffset as _;
3806
3807 let completions_menu =
3808 if let CodeContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3809 menu
3810 } else {
3811 return None;
3812 };
3813
3814 let mat = completions_menu
3815 .entries
3816 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
3817
3818 let mat = match mat {
3819 CompletionEntry::InlineCompletionHint { .. } => {
3820 self.accept_inline_completion(&AcceptInlineCompletion, cx);
3821 cx.stop_propagation();
3822 return Some(Task::ready(Ok(())));
3823 }
3824 CompletionEntry::Match(mat) => {
3825 if self.show_inline_completions_in_menu(cx) {
3826 self.discard_inline_completion(true, cx);
3827 }
3828 mat
3829 }
3830 };
3831
3832 let buffer_handle = completions_menu.buffer;
3833 let completions = completions_menu.completions.borrow_mut();
3834 let completion = completions.get(mat.candidate_id)?;
3835 cx.stop_propagation();
3836
3837 let snippet;
3838 let text;
3839
3840 if completion.is_snippet() {
3841 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3842 text = snippet.as_ref().unwrap().text.clone();
3843 } else {
3844 snippet = None;
3845 text = completion.new_text.clone();
3846 };
3847 let selections = self.selections.all::<usize>(cx);
3848 let buffer = buffer_handle.read(cx);
3849 let old_range = completion.old_range.to_offset(buffer);
3850 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3851
3852 let newest_selection = self.selections.newest_anchor();
3853 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3854 return None;
3855 }
3856
3857 let lookbehind = newest_selection
3858 .start
3859 .text_anchor
3860 .to_offset(buffer)
3861 .saturating_sub(old_range.start);
3862 let lookahead = old_range
3863 .end
3864 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3865 let mut common_prefix_len = old_text
3866 .bytes()
3867 .zip(text.bytes())
3868 .take_while(|(a, b)| a == b)
3869 .count();
3870
3871 let snapshot = self.buffer.read(cx).snapshot(cx);
3872 let mut range_to_replace: Option<Range<isize>> = None;
3873 let mut ranges = Vec::new();
3874 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3875 for selection in &selections {
3876 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3877 let start = selection.start.saturating_sub(lookbehind);
3878 let end = selection.end + lookahead;
3879 if selection.id == newest_selection.id {
3880 range_to_replace = Some(
3881 ((start + common_prefix_len) as isize - selection.start as isize)
3882 ..(end as isize - selection.start as isize),
3883 );
3884 }
3885 ranges.push(start + common_prefix_len..end);
3886 } else {
3887 common_prefix_len = 0;
3888 ranges.clear();
3889 ranges.extend(selections.iter().map(|s| {
3890 if s.id == newest_selection.id {
3891 range_to_replace = Some(
3892 old_range.start.to_offset_utf16(&snapshot).0 as isize
3893 - selection.start as isize
3894 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3895 - selection.start as isize,
3896 );
3897 old_range.clone()
3898 } else {
3899 s.start..s.end
3900 }
3901 }));
3902 break;
3903 }
3904 if !self.linked_edit_ranges.is_empty() {
3905 let start_anchor = snapshot.anchor_before(selection.head());
3906 let end_anchor = snapshot.anchor_after(selection.tail());
3907 if let Some(ranges) = self
3908 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
3909 {
3910 for (buffer, edits) in ranges {
3911 linked_edits.entry(buffer.clone()).or_default().extend(
3912 edits
3913 .into_iter()
3914 .map(|range| (range, text[common_prefix_len..].to_owned())),
3915 );
3916 }
3917 }
3918 }
3919 }
3920 let text = &text[common_prefix_len..];
3921
3922 cx.emit(EditorEvent::InputHandled {
3923 utf16_range_to_replace: range_to_replace,
3924 text: text.into(),
3925 });
3926
3927 self.transact(cx, |this, cx| {
3928 if let Some(mut snippet) = snippet {
3929 snippet.text = text.to_string();
3930 for tabstop in snippet
3931 .tabstops
3932 .iter_mut()
3933 .flat_map(|tabstop| tabstop.ranges.iter_mut())
3934 {
3935 tabstop.start -= common_prefix_len as isize;
3936 tabstop.end -= common_prefix_len as isize;
3937 }
3938
3939 this.insert_snippet(&ranges, snippet, cx).log_err();
3940 } else {
3941 this.buffer.update(cx, |buffer, cx| {
3942 buffer.edit(
3943 ranges.iter().map(|range| (range.clone(), text)),
3944 this.autoindent_mode.clone(),
3945 cx,
3946 );
3947 });
3948 }
3949 for (buffer, edits) in linked_edits {
3950 buffer.update(cx, |buffer, cx| {
3951 let snapshot = buffer.snapshot();
3952 let edits = edits
3953 .into_iter()
3954 .map(|(range, text)| {
3955 use text::ToPoint as TP;
3956 let end_point = TP::to_point(&range.end, &snapshot);
3957 let start_point = TP::to_point(&range.start, &snapshot);
3958 (start_point..end_point, text)
3959 })
3960 .sorted_by_key(|(range, _)| range.start)
3961 .collect::<Vec<_>>();
3962 buffer.edit(edits, None, cx);
3963 })
3964 }
3965
3966 this.refresh_inline_completion(true, false, cx);
3967 });
3968
3969 let show_new_completions_on_confirm = completion
3970 .confirm
3971 .as_ref()
3972 .map_or(false, |confirm| confirm(intent, cx));
3973 if show_new_completions_on_confirm {
3974 self.show_completions(&ShowCompletions { trigger: None }, cx);
3975 }
3976
3977 let provider = self.completion_provider.as_ref()?;
3978 let apply_edits = provider.apply_additional_edits_for_completion(
3979 buffer_handle,
3980 completion.clone(),
3981 true,
3982 cx,
3983 );
3984
3985 let editor_settings = EditorSettings::get_global(cx);
3986 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
3987 // After the code completion is finished, users often want to know what signatures are needed.
3988 // so we should automatically call signature_help
3989 self.show_signature_help(&ShowSignatureHelp, cx);
3990 }
3991
3992 Some(cx.foreground_executor().spawn(async move {
3993 apply_edits.await?;
3994 Ok(())
3995 }))
3996 }
3997
3998 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3999 let mut context_menu = self.context_menu.borrow_mut();
4000 if let Some(CodeContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4001 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4002 // Toggle if we're selecting the same one
4003 *context_menu = None;
4004 cx.notify();
4005 return;
4006 } else {
4007 // Otherwise, clear it and start a new one
4008 *context_menu = None;
4009 cx.notify();
4010 }
4011 }
4012 drop(context_menu);
4013 let snapshot = self.snapshot(cx);
4014 let deployed_from_indicator = action.deployed_from_indicator;
4015 let mut task = self.code_actions_task.take();
4016 let action = action.clone();
4017 cx.spawn(|editor, mut cx| async move {
4018 while let Some(prev_task) = task {
4019 prev_task.await.log_err();
4020 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4021 }
4022
4023 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4024 if editor.focus_handle.is_focused(cx) {
4025 let multibuffer_point = action
4026 .deployed_from_indicator
4027 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4028 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4029 let (buffer, buffer_row) = snapshot
4030 .buffer_snapshot
4031 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4032 .and_then(|(buffer_snapshot, range)| {
4033 editor
4034 .buffer
4035 .read(cx)
4036 .buffer(buffer_snapshot.remote_id())
4037 .map(|buffer| (buffer, range.start.row))
4038 })?;
4039 let (_, code_actions) = editor
4040 .available_code_actions
4041 .clone()
4042 .and_then(|(location, code_actions)| {
4043 let snapshot = location.buffer.read(cx).snapshot();
4044 let point_range = location.range.to_point(&snapshot);
4045 let point_range = point_range.start.row..=point_range.end.row;
4046 if point_range.contains(&buffer_row) {
4047 Some((location, code_actions))
4048 } else {
4049 None
4050 }
4051 })
4052 .unzip();
4053 let buffer_id = buffer.read(cx).remote_id();
4054 let tasks = editor
4055 .tasks
4056 .get(&(buffer_id, buffer_row))
4057 .map(|t| Arc::new(t.to_owned()));
4058 if tasks.is_none() && code_actions.is_none() {
4059 return None;
4060 }
4061
4062 editor.completion_tasks.clear();
4063 editor.discard_inline_completion(false, cx);
4064 let task_context =
4065 tasks
4066 .as_ref()
4067 .zip(editor.project.clone())
4068 .map(|(tasks, project)| {
4069 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4070 });
4071
4072 Some(cx.spawn(|editor, mut cx| async move {
4073 let task_context = match task_context {
4074 Some(task_context) => task_context.await,
4075 None => None,
4076 };
4077 let resolved_tasks =
4078 tasks.zip(task_context).map(|(tasks, task_context)| {
4079 Rc::new(ResolvedTasks {
4080 templates: tasks.resolve(&task_context).collect(),
4081 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4082 multibuffer_point.row,
4083 tasks.column,
4084 )),
4085 })
4086 });
4087 let spawn_straight_away = resolved_tasks
4088 .as_ref()
4089 .map_or(false, |tasks| tasks.templates.len() == 1)
4090 && code_actions
4091 .as_ref()
4092 .map_or(true, |actions| actions.is_empty());
4093 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4094 *editor.context_menu.borrow_mut() =
4095 Some(CodeContextMenu::CodeActions(CodeActionsMenu {
4096 buffer,
4097 actions: CodeActionContents {
4098 tasks: resolved_tasks,
4099 actions: code_actions,
4100 },
4101 selected_item: Default::default(),
4102 scroll_handle: UniformListScrollHandle::default(),
4103 deployed_from_indicator,
4104 }));
4105 if spawn_straight_away {
4106 if let Some(task) = editor.confirm_code_action(
4107 &ConfirmCodeAction { item_ix: Some(0) },
4108 cx,
4109 ) {
4110 cx.notify();
4111 return task;
4112 }
4113 }
4114 cx.notify();
4115 Task::ready(Ok(()))
4116 }) {
4117 task.await
4118 } else {
4119 Ok(())
4120 }
4121 }))
4122 } else {
4123 Some(Task::ready(Ok(())))
4124 }
4125 })?;
4126 if let Some(task) = spawned_test_task {
4127 task.await?;
4128 }
4129
4130 Ok::<_, anyhow::Error>(())
4131 })
4132 .detach_and_log_err(cx);
4133 }
4134
4135 pub fn confirm_code_action(
4136 &mut self,
4137 action: &ConfirmCodeAction,
4138 cx: &mut ViewContext<Self>,
4139 ) -> Option<Task<Result<()>>> {
4140 let actions_menu = if let CodeContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4141 menu
4142 } else {
4143 return None;
4144 };
4145 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4146 let action = actions_menu.actions.get(action_ix)?;
4147 let title = action.label();
4148 let buffer = actions_menu.buffer;
4149 let workspace = self.workspace()?;
4150
4151 match action {
4152 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4153 workspace.update(cx, |workspace, cx| {
4154 workspace::tasks::schedule_resolved_task(
4155 workspace,
4156 task_source_kind,
4157 resolved_task,
4158 false,
4159 cx,
4160 );
4161
4162 Some(Task::ready(Ok(())))
4163 })
4164 }
4165 CodeActionsItem::CodeAction {
4166 excerpt_id,
4167 action,
4168 provider,
4169 } => {
4170 let apply_code_action =
4171 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4172 let workspace = workspace.downgrade();
4173 Some(cx.spawn(|editor, cx| async move {
4174 let project_transaction = apply_code_action.await?;
4175 Self::open_project_transaction(
4176 &editor,
4177 workspace,
4178 project_transaction,
4179 title,
4180 cx,
4181 )
4182 .await
4183 }))
4184 }
4185 }
4186 }
4187
4188 pub async fn open_project_transaction(
4189 this: &WeakView<Editor>,
4190 workspace: WeakView<Workspace>,
4191 transaction: ProjectTransaction,
4192 title: String,
4193 mut cx: AsyncWindowContext,
4194 ) -> Result<()> {
4195 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4196 cx.update(|cx| {
4197 entries.sort_unstable_by_key(|(buffer, _)| {
4198 buffer.read(cx).file().map(|f| f.path().clone())
4199 });
4200 })?;
4201
4202 // If the project transaction's edits are all contained within this editor, then
4203 // avoid opening a new editor to display them.
4204
4205 if let Some((buffer, transaction)) = entries.first() {
4206 if entries.len() == 1 {
4207 let excerpt = this.update(&mut cx, |editor, cx| {
4208 editor
4209 .buffer()
4210 .read(cx)
4211 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4212 })?;
4213 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4214 if excerpted_buffer == *buffer {
4215 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4216 let excerpt_range = excerpt_range.to_offset(buffer);
4217 buffer
4218 .edited_ranges_for_transaction::<usize>(transaction)
4219 .all(|range| {
4220 excerpt_range.start <= range.start
4221 && excerpt_range.end >= range.end
4222 })
4223 })?;
4224
4225 if all_edits_within_excerpt {
4226 return Ok(());
4227 }
4228 }
4229 }
4230 }
4231 } else {
4232 return Ok(());
4233 }
4234
4235 let mut ranges_to_highlight = Vec::new();
4236 let excerpt_buffer = cx.new_model(|cx| {
4237 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4238 for (buffer_handle, transaction) in &entries {
4239 let buffer = buffer_handle.read(cx);
4240 ranges_to_highlight.extend(
4241 multibuffer.push_excerpts_with_context_lines(
4242 buffer_handle.clone(),
4243 buffer
4244 .edited_ranges_for_transaction::<usize>(transaction)
4245 .collect(),
4246 DEFAULT_MULTIBUFFER_CONTEXT,
4247 cx,
4248 ),
4249 );
4250 }
4251 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4252 multibuffer
4253 })?;
4254
4255 workspace.update(&mut cx, |workspace, cx| {
4256 let project = workspace.project().clone();
4257 let editor =
4258 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4259 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4260 editor.update(cx, |editor, cx| {
4261 editor.highlight_background::<Self>(
4262 &ranges_to_highlight,
4263 |theme| theme.editor_highlighted_line_background,
4264 cx,
4265 );
4266 });
4267 })?;
4268
4269 Ok(())
4270 }
4271
4272 pub fn clear_code_action_providers(&mut self) {
4273 self.code_action_providers.clear();
4274 self.available_code_actions.take();
4275 }
4276
4277 pub fn push_code_action_provider(
4278 &mut self,
4279 provider: Rc<dyn CodeActionProvider>,
4280 cx: &mut ViewContext<Self>,
4281 ) {
4282 self.code_action_providers.push(provider);
4283 self.refresh_code_actions(cx);
4284 }
4285
4286 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4287 let buffer = self.buffer.read(cx);
4288 let newest_selection = self.selections.newest_anchor().clone();
4289 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4290 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4291 if start_buffer != end_buffer {
4292 return None;
4293 }
4294
4295 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4296 cx.background_executor()
4297 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4298 .await;
4299
4300 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4301 let providers = this.code_action_providers.clone();
4302 let tasks = this
4303 .code_action_providers
4304 .iter()
4305 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4306 .collect::<Vec<_>>();
4307 (providers, tasks)
4308 })?;
4309
4310 let mut actions = Vec::new();
4311 for (provider, provider_actions) in
4312 providers.into_iter().zip(future::join_all(tasks).await)
4313 {
4314 if let Some(provider_actions) = provider_actions.log_err() {
4315 actions.extend(provider_actions.into_iter().map(|action| {
4316 AvailableCodeAction {
4317 excerpt_id: newest_selection.start.excerpt_id,
4318 action,
4319 provider: provider.clone(),
4320 }
4321 }));
4322 }
4323 }
4324
4325 this.update(&mut cx, |this, cx| {
4326 this.available_code_actions = if actions.is_empty() {
4327 None
4328 } else {
4329 Some((
4330 Location {
4331 buffer: start_buffer,
4332 range: start..end,
4333 },
4334 actions.into(),
4335 ))
4336 };
4337 cx.notify();
4338 })
4339 }));
4340 None
4341 }
4342
4343 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4344 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4345 self.show_git_blame_inline = false;
4346
4347 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4348 cx.background_executor().timer(delay).await;
4349
4350 this.update(&mut cx, |this, cx| {
4351 this.show_git_blame_inline = true;
4352 cx.notify();
4353 })
4354 .log_err();
4355 }));
4356 }
4357 }
4358
4359 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4360 if self.pending_rename.is_some() {
4361 return None;
4362 }
4363
4364 let provider = self.semantics_provider.clone()?;
4365 let buffer = self.buffer.read(cx);
4366 let newest_selection = self.selections.newest_anchor().clone();
4367 let cursor_position = newest_selection.head();
4368 let (cursor_buffer, cursor_buffer_position) =
4369 buffer.text_anchor_for_position(cursor_position, cx)?;
4370 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4371 if cursor_buffer != tail_buffer {
4372 return None;
4373 }
4374 let debounce = EditorSettings::get_global(cx).lsp_highlight_debounce;
4375 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4376 cx.background_executor()
4377 .timer(Duration::from_millis(debounce))
4378 .await;
4379
4380 let highlights = if let Some(highlights) = cx
4381 .update(|cx| {
4382 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4383 })
4384 .ok()
4385 .flatten()
4386 {
4387 highlights.await.log_err()
4388 } else {
4389 None
4390 };
4391
4392 if let Some(highlights) = highlights {
4393 this.update(&mut cx, |this, cx| {
4394 if this.pending_rename.is_some() {
4395 return;
4396 }
4397
4398 let buffer_id = cursor_position.buffer_id;
4399 let buffer = this.buffer.read(cx);
4400 if !buffer
4401 .text_anchor_for_position(cursor_position, cx)
4402 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4403 {
4404 return;
4405 }
4406
4407 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4408 let mut write_ranges = Vec::new();
4409 let mut read_ranges = Vec::new();
4410 for highlight in highlights {
4411 for (excerpt_id, excerpt_range) in
4412 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4413 {
4414 let start = highlight
4415 .range
4416 .start
4417 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4418 let end = highlight
4419 .range
4420 .end
4421 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4422 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4423 continue;
4424 }
4425
4426 let range = Anchor {
4427 buffer_id,
4428 excerpt_id,
4429 text_anchor: start,
4430 }..Anchor {
4431 buffer_id,
4432 excerpt_id,
4433 text_anchor: end,
4434 };
4435 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4436 write_ranges.push(range);
4437 } else {
4438 read_ranges.push(range);
4439 }
4440 }
4441 }
4442
4443 this.highlight_background::<DocumentHighlightRead>(
4444 &read_ranges,
4445 |theme| theme.editor_document_highlight_read_background,
4446 cx,
4447 );
4448 this.highlight_background::<DocumentHighlightWrite>(
4449 &write_ranges,
4450 |theme| theme.editor_document_highlight_write_background,
4451 cx,
4452 );
4453 cx.notify();
4454 })
4455 .log_err();
4456 }
4457 }));
4458 None
4459 }
4460
4461 pub fn refresh_inline_completion(
4462 &mut self,
4463 debounce: bool,
4464 user_requested: bool,
4465 cx: &mut ViewContext<Self>,
4466 ) -> Option<()> {
4467 let provider = self.inline_completion_provider()?;
4468 let cursor = self.selections.newest_anchor().head();
4469 let (buffer, cursor_buffer_position) =
4470 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4471
4472 if !user_requested
4473 && (!self.enable_inline_completions
4474 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4475 || !self.is_focused(cx))
4476 {
4477 self.discard_inline_completion(false, cx);
4478 return None;
4479 }
4480
4481 self.update_visible_inline_completion(cx);
4482 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4483 Some(())
4484 }
4485
4486 fn cycle_inline_completion(
4487 &mut self,
4488 direction: Direction,
4489 cx: &mut ViewContext<Self>,
4490 ) -> Option<()> {
4491 let provider = self.inline_completion_provider()?;
4492 let cursor = self.selections.newest_anchor().head();
4493 let (buffer, cursor_buffer_position) =
4494 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4495 if !self.enable_inline_completions
4496 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4497 {
4498 return None;
4499 }
4500
4501 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4502 self.update_visible_inline_completion(cx);
4503
4504 Some(())
4505 }
4506
4507 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4508 if !self.has_active_inline_completion() {
4509 self.refresh_inline_completion(false, true, cx);
4510 return;
4511 }
4512
4513 self.update_visible_inline_completion(cx);
4514 }
4515
4516 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4517 self.show_cursor_names(cx);
4518 }
4519
4520 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4521 self.show_cursor_names = true;
4522 cx.notify();
4523 cx.spawn(|this, mut cx| async move {
4524 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4525 this.update(&mut cx, |this, cx| {
4526 this.show_cursor_names = false;
4527 cx.notify()
4528 })
4529 .ok()
4530 })
4531 .detach();
4532 }
4533
4534 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4535 if self.has_active_inline_completion() {
4536 self.cycle_inline_completion(Direction::Next, cx);
4537 } else {
4538 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4539 if is_copilot_disabled {
4540 cx.propagate();
4541 }
4542 }
4543 }
4544
4545 pub fn previous_inline_completion(
4546 &mut self,
4547 _: &PreviousInlineCompletion,
4548 cx: &mut ViewContext<Self>,
4549 ) {
4550 if self.has_active_inline_completion() {
4551 self.cycle_inline_completion(Direction::Prev, cx);
4552 } else {
4553 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4554 if is_copilot_disabled {
4555 cx.propagate();
4556 }
4557 }
4558 }
4559
4560 pub fn accept_inline_completion(
4561 &mut self,
4562 _: &AcceptInlineCompletion,
4563 cx: &mut ViewContext<Self>,
4564 ) {
4565 if self.show_inline_completions_in_menu(cx) {
4566 self.hide_context_menu(cx);
4567 }
4568
4569 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4570 return;
4571 };
4572
4573 self.report_inline_completion_event(true, cx);
4574
4575 match &active_inline_completion.completion {
4576 InlineCompletion::Move(position) => {
4577 let position = *position;
4578 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4579 selections.select_anchor_ranges([position..position]);
4580 });
4581 }
4582 InlineCompletion::Edit(edits) => {
4583 if let Some(provider) = self.inline_completion_provider() {
4584 provider.accept(cx);
4585 }
4586
4587 let snapshot = self.buffer.read(cx).snapshot(cx);
4588 let last_edit_end = edits.last().unwrap().0.end.bias_right(&snapshot);
4589
4590 self.buffer.update(cx, |buffer, cx| {
4591 buffer.edit(edits.iter().cloned(), None, cx)
4592 });
4593
4594 self.change_selections(None, cx, |s| {
4595 s.select_anchor_ranges([last_edit_end..last_edit_end])
4596 });
4597
4598 self.update_visible_inline_completion(cx);
4599 if self.active_inline_completion.is_none() {
4600 self.refresh_inline_completion(true, true, cx);
4601 }
4602
4603 cx.notify();
4604 }
4605 }
4606 }
4607
4608 pub fn accept_partial_inline_completion(
4609 &mut self,
4610 _: &AcceptPartialInlineCompletion,
4611 cx: &mut ViewContext<Self>,
4612 ) {
4613 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4614 return;
4615 };
4616 if self.selections.count() != 1 {
4617 return;
4618 }
4619
4620 self.report_inline_completion_event(true, cx);
4621
4622 match &active_inline_completion.completion {
4623 InlineCompletion::Move(position) => {
4624 let position = *position;
4625 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4626 selections.select_anchor_ranges([position..position]);
4627 });
4628 }
4629 InlineCompletion::Edit(edits) => {
4630 if edits.len() == 1 && edits[0].0.start == edits[0].0.end {
4631 let text = edits[0].1.as_str();
4632 let mut partial_completion = text
4633 .chars()
4634 .by_ref()
4635 .take_while(|c| c.is_alphabetic())
4636 .collect::<String>();
4637 if partial_completion.is_empty() {
4638 partial_completion = text
4639 .chars()
4640 .by_ref()
4641 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4642 .collect::<String>();
4643 }
4644
4645 cx.emit(EditorEvent::InputHandled {
4646 utf16_range_to_replace: None,
4647 text: partial_completion.clone().into(),
4648 });
4649
4650 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4651
4652 self.refresh_inline_completion(true, true, cx);
4653 cx.notify();
4654 }
4655 }
4656 }
4657 }
4658
4659 fn discard_inline_completion(
4660 &mut self,
4661 should_report_inline_completion_event: bool,
4662 cx: &mut ViewContext<Self>,
4663 ) -> bool {
4664 if should_report_inline_completion_event {
4665 self.report_inline_completion_event(false, cx);
4666 }
4667
4668 if let Some(provider) = self.inline_completion_provider() {
4669 provider.discard(cx);
4670 }
4671
4672 self.take_active_inline_completion(cx).is_some()
4673 }
4674
4675 fn report_inline_completion_event(&self, accepted: bool, cx: &AppContext) {
4676 let Some(provider) = self.inline_completion_provider() else {
4677 return;
4678 };
4679 let Some(project) = self.project.as_ref() else {
4680 return;
4681 };
4682 let Some((_, buffer, _)) = self
4683 .buffer
4684 .read(cx)
4685 .excerpt_containing(self.selections.newest_anchor().head(), cx)
4686 else {
4687 return;
4688 };
4689
4690 let project = project.read(cx);
4691 let extension = buffer
4692 .read(cx)
4693 .file()
4694 .and_then(|file| Some(file.path().extension()?.to_string_lossy().to_string()));
4695 project.client().telemetry().report_inline_completion_event(
4696 provider.name().into(),
4697 accepted,
4698 extension,
4699 );
4700 }
4701
4702 pub fn has_active_inline_completion(&self) -> bool {
4703 self.active_inline_completion.is_some()
4704 }
4705
4706 fn take_active_inline_completion(
4707 &mut self,
4708 cx: &mut ViewContext<Self>,
4709 ) -> Option<InlineCompletion> {
4710 let active_inline_completion = self.active_inline_completion.take()?;
4711 self.splice_inlays(active_inline_completion.inlay_ids, Default::default(), cx);
4712 self.clear_highlights::<InlineCompletionHighlight>(cx);
4713 Some(active_inline_completion.completion)
4714 }
4715
4716 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4717 let selection = self.selections.newest_anchor();
4718 let cursor = selection.head();
4719 let multibuffer = self.buffer.read(cx).snapshot(cx);
4720 let offset_selection = selection.map(|endpoint| endpoint.to_offset(&multibuffer));
4721 let excerpt_id = cursor.excerpt_id;
4722
4723 let completions_menu_has_precedence = !self.show_inline_completions_in_menu(cx)
4724 && (self.context_menu.borrow().is_some()
4725 || (!self.completion_tasks.is_empty() && !self.has_active_inline_completion()));
4726 if completions_menu_has_precedence
4727 || !offset_selection.is_empty()
4728 || self
4729 .active_inline_completion
4730 .as_ref()
4731 .map_or(false, |completion| {
4732 let invalidation_range = completion.invalidation_range.to_offset(&multibuffer);
4733 let invalidation_range = invalidation_range.start..=invalidation_range.end;
4734 !invalidation_range.contains(&offset_selection.head())
4735 })
4736 {
4737 self.discard_inline_completion(false, cx);
4738 return None;
4739 }
4740
4741 self.take_active_inline_completion(cx);
4742 let provider = self.inline_completion_provider()?;
4743
4744 let (buffer, cursor_buffer_position) =
4745 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4746
4747 let completion = provider.suggest(&buffer, cursor_buffer_position, cx)?;
4748 let edits = completion
4749 .edits
4750 .into_iter()
4751 .flat_map(|(range, new_text)| {
4752 let start = multibuffer.anchor_in_excerpt(excerpt_id, range.start)?;
4753 let end = multibuffer.anchor_in_excerpt(excerpt_id, range.end)?;
4754 Some((start..end, new_text))
4755 })
4756 .collect::<Vec<_>>();
4757 if edits.is_empty() {
4758 return None;
4759 }
4760
4761 let first_edit_start = edits.first().unwrap().0.start;
4762 let edit_start_row = first_edit_start
4763 .to_point(&multibuffer)
4764 .row
4765 .saturating_sub(2);
4766
4767 let last_edit_end = edits.last().unwrap().0.end;
4768 let edit_end_row = cmp::min(
4769 multibuffer.max_point().row,
4770 last_edit_end.to_point(&multibuffer).row + 2,
4771 );
4772
4773 let cursor_row = cursor.to_point(&multibuffer).row;
4774
4775 let mut inlay_ids = Vec::new();
4776 let invalidation_row_range;
4777 let completion;
4778 if cursor_row < edit_start_row {
4779 invalidation_row_range = cursor_row..edit_end_row;
4780 completion = InlineCompletion::Move(first_edit_start);
4781 } else if cursor_row > edit_end_row {
4782 invalidation_row_range = edit_start_row..cursor_row;
4783 completion = InlineCompletion::Move(first_edit_start);
4784 } else {
4785 if edits
4786 .iter()
4787 .all(|(range, _)| range.to_offset(&multibuffer).is_empty())
4788 {
4789 let mut inlays = Vec::new();
4790 for (range, new_text) in &edits {
4791 let inlay = Inlay::inline_completion(
4792 post_inc(&mut self.next_inlay_id),
4793 range.start,
4794 new_text.as_str(),
4795 );
4796 inlay_ids.push(inlay.id);
4797 inlays.push(inlay);
4798 }
4799
4800 self.splice_inlays(vec![], inlays, cx);
4801 } else {
4802 let background_color = cx.theme().status().deleted_background;
4803 self.highlight_text::<InlineCompletionHighlight>(
4804 edits.iter().map(|(range, _)| range.clone()).collect(),
4805 HighlightStyle {
4806 background_color: Some(background_color),
4807 ..Default::default()
4808 },
4809 cx,
4810 );
4811 }
4812
4813 invalidation_row_range = edit_start_row..edit_end_row;
4814 completion = InlineCompletion::Edit(edits);
4815 };
4816
4817 let invalidation_range = multibuffer
4818 .anchor_before(Point::new(invalidation_row_range.start, 0))
4819 ..multibuffer.anchor_after(Point::new(
4820 invalidation_row_range.end,
4821 multibuffer.line_len(MultiBufferRow(invalidation_row_range.end)),
4822 ));
4823
4824 self.active_inline_completion = Some(InlineCompletionState {
4825 inlay_ids,
4826 completion,
4827 invalidation_range,
4828 });
4829
4830 if self.show_inline_completions_in_menu(cx) && self.has_active_completions_menu() {
4831 if let Some(hint) = self.inline_completion_menu_hint(cx) {
4832 match self.context_menu.borrow_mut().as_mut() {
4833 Some(CodeContextMenu::Completions(menu)) => {
4834 menu.show_inline_completion_hint(hint);
4835 }
4836 _ => {}
4837 }
4838 }
4839 }
4840
4841 cx.notify();
4842
4843 Some(())
4844 }
4845
4846 fn inline_completion_menu_hint(
4847 &mut self,
4848 cx: &mut ViewContext<Self>,
4849 ) -> Option<InlineCompletionMenuHint> {
4850 if self.has_active_inline_completion() {
4851 let provider_name = self.inline_completion_provider()?.display_name();
4852 let editor_snapshot = self.snapshot(cx);
4853
4854 let text = match &self.active_inline_completion.as_ref()?.completion {
4855 InlineCompletion::Edit(edits) => {
4856 inline_completion_edit_text(&editor_snapshot, edits, true, cx)
4857 }
4858 InlineCompletion::Move(target) => {
4859 let target_point =
4860 target.to_point(&editor_snapshot.display_snapshot.buffer_snapshot);
4861 let target_line = target_point.row + 1;
4862 InlineCompletionText::Move(
4863 format!("Jump to edit in line {}", target_line).into(),
4864 )
4865 }
4866 };
4867
4868 Some(InlineCompletionMenuHint {
4869 provider_name,
4870 text,
4871 })
4872 } else {
4873 None
4874 }
4875 }
4876
4877 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4878 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4879 }
4880
4881 fn show_inline_completions_in_menu(&self, cx: &AppContext) -> bool {
4882 EditorSettings::get_global(cx).show_inline_completions_in_menu
4883 && self
4884 .inline_completion_provider()
4885 .map_or(false, |provider| provider.show_completions_in_menu())
4886 }
4887
4888 fn render_code_actions_indicator(
4889 &self,
4890 _style: &EditorStyle,
4891 row: DisplayRow,
4892 is_active: bool,
4893 cx: &mut ViewContext<Self>,
4894 ) -> Option<IconButton> {
4895 if self.available_code_actions.is_some() {
4896 Some(
4897 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4898 .shape(ui::IconButtonShape::Square)
4899 .icon_size(IconSize::XSmall)
4900 .icon_color(Color::Muted)
4901 .toggle_state(is_active)
4902 .tooltip({
4903 let focus_handle = self.focus_handle.clone();
4904 move |cx| {
4905 Tooltip::for_action_in(
4906 "Toggle Code Actions",
4907 &ToggleCodeActions {
4908 deployed_from_indicator: None,
4909 },
4910 &focus_handle,
4911 cx,
4912 )
4913 }
4914 })
4915 .on_click(cx.listener(move |editor, _e, cx| {
4916 editor.focus(cx);
4917 editor.toggle_code_actions(
4918 &ToggleCodeActions {
4919 deployed_from_indicator: Some(row),
4920 },
4921 cx,
4922 );
4923 })),
4924 )
4925 } else {
4926 None
4927 }
4928 }
4929
4930 fn clear_tasks(&mut self) {
4931 self.tasks.clear()
4932 }
4933
4934 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
4935 if self.tasks.insert(key, value).is_some() {
4936 // This case should hopefully be rare, but just in case...
4937 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4938 }
4939 }
4940
4941 fn build_tasks_context(
4942 project: &Model<Project>,
4943 buffer: &Model<Buffer>,
4944 buffer_row: u32,
4945 tasks: &Arc<RunnableTasks>,
4946 cx: &mut ViewContext<Self>,
4947 ) -> Task<Option<task::TaskContext>> {
4948 let position = Point::new(buffer_row, tasks.column);
4949 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4950 let location = Location {
4951 buffer: buffer.clone(),
4952 range: range_start..range_start,
4953 };
4954 // Fill in the environmental variables from the tree-sitter captures
4955 let mut captured_task_variables = TaskVariables::default();
4956 for (capture_name, value) in tasks.extra_variables.clone() {
4957 captured_task_variables.insert(
4958 task::VariableName::Custom(capture_name.into()),
4959 value.clone(),
4960 );
4961 }
4962 project.update(cx, |project, cx| {
4963 project.task_store().update(cx, |task_store, cx| {
4964 task_store.task_context_for_location(captured_task_variables, location, cx)
4965 })
4966 })
4967 }
4968
4969 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
4970 let Some((workspace, _)) = self.workspace.clone() else {
4971 return;
4972 };
4973 let Some(project) = self.project.clone() else {
4974 return;
4975 };
4976
4977 // Try to find a closest, enclosing node using tree-sitter that has a
4978 // task
4979 let Some((buffer, buffer_row, tasks)) = self
4980 .find_enclosing_node_task(cx)
4981 // Or find the task that's closest in row-distance.
4982 .or_else(|| self.find_closest_task(cx))
4983 else {
4984 return;
4985 };
4986
4987 let reveal_strategy = action.reveal;
4988 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
4989 cx.spawn(|_, mut cx| async move {
4990 let context = task_context.await?;
4991 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
4992
4993 let resolved = resolved_task.resolved.as_mut()?;
4994 resolved.reveal = reveal_strategy;
4995
4996 workspace
4997 .update(&mut cx, |workspace, cx| {
4998 workspace::tasks::schedule_resolved_task(
4999 workspace,
5000 task_source_kind,
5001 resolved_task,
5002 false,
5003 cx,
5004 );
5005 })
5006 .ok()
5007 })
5008 .detach();
5009 }
5010
5011 fn find_closest_task(
5012 &mut self,
5013 cx: &mut ViewContext<Self>,
5014 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5015 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5016
5017 let ((buffer_id, row), tasks) = self
5018 .tasks
5019 .iter()
5020 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5021
5022 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5023 let tasks = Arc::new(tasks.to_owned());
5024 Some((buffer, *row, tasks))
5025 }
5026
5027 fn find_enclosing_node_task(
5028 &mut self,
5029 cx: &mut ViewContext<Self>,
5030 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5031 let snapshot = self.buffer.read(cx).snapshot(cx);
5032 let offset = self.selections.newest::<usize>(cx).head();
5033 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5034 let buffer_id = excerpt.buffer().remote_id();
5035
5036 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5037 let mut cursor = layer.node().walk();
5038
5039 while cursor.goto_first_child_for_byte(offset).is_some() {
5040 if cursor.node().end_byte() == offset {
5041 cursor.goto_next_sibling();
5042 }
5043 }
5044
5045 // Ascend to the smallest ancestor that contains the range and has a task.
5046 loop {
5047 let node = cursor.node();
5048 let node_range = node.byte_range();
5049 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5050
5051 // Check if this node contains our offset
5052 if node_range.start <= offset && node_range.end >= offset {
5053 // If it contains offset, check for task
5054 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5055 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5056 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5057 }
5058 }
5059
5060 if !cursor.goto_parent() {
5061 break;
5062 }
5063 }
5064 None
5065 }
5066
5067 fn render_run_indicator(
5068 &self,
5069 _style: &EditorStyle,
5070 is_active: bool,
5071 row: DisplayRow,
5072 cx: &mut ViewContext<Self>,
5073 ) -> IconButton {
5074 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5075 .shape(ui::IconButtonShape::Square)
5076 .icon_size(IconSize::XSmall)
5077 .icon_color(Color::Muted)
5078 .toggle_state(is_active)
5079 .on_click(cx.listener(move |editor, _e, cx| {
5080 editor.focus(cx);
5081 editor.toggle_code_actions(
5082 &ToggleCodeActions {
5083 deployed_from_indicator: Some(row),
5084 },
5085 cx,
5086 );
5087 }))
5088 }
5089
5090 #[cfg(feature = "test-support")]
5091 pub fn context_menu_visible(&self) -> bool {
5092 self.context_menu
5093 .borrow()
5094 .as_ref()
5095 .map_or(false, |menu| menu.visible())
5096 }
5097
5098 #[cfg(feature = "test-support")]
5099 pub fn context_menu_contains_inline_completion(&self) -> bool {
5100 self.context_menu
5101 .borrow()
5102 .as_ref()
5103 .map_or(false, |menu| match menu {
5104 CodeContextMenu::Completions(menu) => menu.entries.first().map_or(false, |entry| {
5105 matches!(entry, CompletionEntry::InlineCompletionHint(_))
5106 }),
5107 CodeContextMenu::CodeActions(_) => false,
5108 })
5109 }
5110
5111 fn context_menu_origin(&self, cursor_position: DisplayPoint) -> Option<ContextMenuOrigin> {
5112 self.context_menu
5113 .borrow()
5114 .as_ref()
5115 .map(|menu| menu.origin(cursor_position))
5116 }
5117
5118 fn render_context_menu(
5119 &self,
5120 style: &EditorStyle,
5121 max_height_in_lines: u32,
5122 cx: &mut ViewContext<Editor>,
5123 ) -> Option<AnyElement> {
5124 self.context_menu.borrow().as_ref().and_then(|menu| {
5125 if menu.visible() {
5126 Some(menu.render(style, max_height_in_lines, cx))
5127 } else {
5128 None
5129 }
5130 })
5131 }
5132
5133 fn render_context_menu_aside(
5134 &self,
5135 style: &EditorStyle,
5136 max_size: Size<Pixels>,
5137 cx: &mut ViewContext<Editor>,
5138 ) -> Option<AnyElement> {
5139 self.context_menu.borrow().as_ref().and_then(|menu| {
5140 if menu.visible() {
5141 menu.render_aside(
5142 style,
5143 max_size,
5144 self.workspace.as_ref().map(|(w, _)| w.clone()),
5145 cx,
5146 )
5147 } else {
5148 None
5149 }
5150 })
5151 }
5152
5153 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<CodeContextMenu> {
5154 cx.notify();
5155 self.completion_tasks.clear();
5156 let context_menu = self.context_menu.borrow_mut().take();
5157 if context_menu.is_some() && !self.show_inline_completions_in_menu(cx) {
5158 self.update_visible_inline_completion(cx);
5159 }
5160 context_menu
5161 }
5162
5163 fn show_snippet_choices(
5164 &mut self,
5165 choices: &Vec<String>,
5166 selection: Range<Anchor>,
5167 cx: &mut ViewContext<Self>,
5168 ) {
5169 if selection.start.buffer_id.is_none() {
5170 return;
5171 }
5172 let buffer_id = selection.start.buffer_id.unwrap();
5173 let buffer = self.buffer().read(cx).buffer(buffer_id);
5174 let id = post_inc(&mut self.next_completion_id);
5175
5176 if let Some(buffer) = buffer {
5177 *self.context_menu.borrow_mut() = Some(CodeContextMenu::Completions(
5178 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
5179 ));
5180 }
5181 }
5182
5183 pub fn insert_snippet(
5184 &mut self,
5185 insertion_ranges: &[Range<usize>],
5186 snippet: Snippet,
5187 cx: &mut ViewContext<Self>,
5188 ) -> Result<()> {
5189 struct Tabstop<T> {
5190 is_end_tabstop: bool,
5191 ranges: Vec<Range<T>>,
5192 choices: Option<Vec<String>>,
5193 }
5194
5195 let tabstops = self.buffer.update(cx, |buffer, cx| {
5196 let snippet_text: Arc<str> = snippet.text.clone().into();
5197 buffer.edit(
5198 insertion_ranges
5199 .iter()
5200 .cloned()
5201 .map(|range| (range, snippet_text.clone())),
5202 Some(AutoindentMode::EachLine),
5203 cx,
5204 );
5205
5206 let snapshot = &*buffer.read(cx);
5207 let snippet = &snippet;
5208 snippet
5209 .tabstops
5210 .iter()
5211 .map(|tabstop| {
5212 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5213 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5214 });
5215 let mut tabstop_ranges = tabstop
5216 .ranges
5217 .iter()
5218 .flat_map(|tabstop_range| {
5219 let mut delta = 0_isize;
5220 insertion_ranges.iter().map(move |insertion_range| {
5221 let insertion_start = insertion_range.start as isize + delta;
5222 delta +=
5223 snippet.text.len() as isize - insertion_range.len() as isize;
5224
5225 let start = ((insertion_start + tabstop_range.start) as usize)
5226 .min(snapshot.len());
5227 let end = ((insertion_start + tabstop_range.end) as usize)
5228 .min(snapshot.len());
5229 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5230 })
5231 })
5232 .collect::<Vec<_>>();
5233 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5234
5235 Tabstop {
5236 is_end_tabstop,
5237 ranges: tabstop_ranges,
5238 choices: tabstop.choices.clone(),
5239 }
5240 })
5241 .collect::<Vec<_>>()
5242 });
5243 if let Some(tabstop) = tabstops.first() {
5244 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5245 s.select_ranges(tabstop.ranges.iter().cloned());
5246 });
5247
5248 if let Some(choices) = &tabstop.choices {
5249 if let Some(selection) = tabstop.ranges.first() {
5250 self.show_snippet_choices(choices, selection.clone(), cx)
5251 }
5252 }
5253
5254 // If we're already at the last tabstop and it's at the end of the snippet,
5255 // we're done, we don't need to keep the state around.
5256 if !tabstop.is_end_tabstop {
5257 let choices = tabstops
5258 .iter()
5259 .map(|tabstop| tabstop.choices.clone())
5260 .collect();
5261
5262 let ranges = tabstops
5263 .into_iter()
5264 .map(|tabstop| tabstop.ranges)
5265 .collect::<Vec<_>>();
5266
5267 self.snippet_stack.push(SnippetState {
5268 active_index: 0,
5269 ranges,
5270 choices,
5271 });
5272 }
5273
5274 // Check whether the just-entered snippet ends with an auto-closable bracket.
5275 if self.autoclose_regions.is_empty() {
5276 let snapshot = self.buffer.read(cx).snapshot(cx);
5277 for selection in &mut self.selections.all::<Point>(cx) {
5278 let selection_head = selection.head();
5279 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5280 continue;
5281 };
5282
5283 let mut bracket_pair = None;
5284 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5285 let prev_chars = snapshot
5286 .reversed_chars_at(selection_head)
5287 .collect::<String>();
5288 for (pair, enabled) in scope.brackets() {
5289 if enabled
5290 && pair.close
5291 && prev_chars.starts_with(pair.start.as_str())
5292 && next_chars.starts_with(pair.end.as_str())
5293 {
5294 bracket_pair = Some(pair.clone());
5295 break;
5296 }
5297 }
5298 if let Some(pair) = bracket_pair {
5299 let start = snapshot.anchor_after(selection_head);
5300 let end = snapshot.anchor_after(selection_head);
5301 self.autoclose_regions.push(AutocloseRegion {
5302 selection_id: selection.id,
5303 range: start..end,
5304 pair,
5305 });
5306 }
5307 }
5308 }
5309 }
5310 Ok(())
5311 }
5312
5313 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5314 self.move_to_snippet_tabstop(Bias::Right, cx)
5315 }
5316
5317 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5318 self.move_to_snippet_tabstop(Bias::Left, cx)
5319 }
5320
5321 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5322 if let Some(mut snippet) = self.snippet_stack.pop() {
5323 match bias {
5324 Bias::Left => {
5325 if snippet.active_index > 0 {
5326 snippet.active_index -= 1;
5327 } else {
5328 self.snippet_stack.push(snippet);
5329 return false;
5330 }
5331 }
5332 Bias::Right => {
5333 if snippet.active_index + 1 < snippet.ranges.len() {
5334 snippet.active_index += 1;
5335 } else {
5336 self.snippet_stack.push(snippet);
5337 return false;
5338 }
5339 }
5340 }
5341 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5342 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5343 s.select_anchor_ranges(current_ranges.iter().cloned())
5344 });
5345
5346 if let Some(choices) = &snippet.choices[snippet.active_index] {
5347 if let Some(selection) = current_ranges.first() {
5348 self.show_snippet_choices(&choices, selection.clone(), cx);
5349 }
5350 }
5351
5352 // If snippet state is not at the last tabstop, push it back on the stack
5353 if snippet.active_index + 1 < snippet.ranges.len() {
5354 self.snippet_stack.push(snippet);
5355 }
5356 return true;
5357 }
5358 }
5359
5360 false
5361 }
5362
5363 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5364 self.transact(cx, |this, cx| {
5365 this.select_all(&SelectAll, cx);
5366 this.insert("", cx);
5367 });
5368 }
5369
5370 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5371 self.transact(cx, |this, cx| {
5372 this.select_autoclose_pair(cx);
5373 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5374 if !this.linked_edit_ranges.is_empty() {
5375 let selections = this.selections.all::<MultiBufferPoint>(cx);
5376 let snapshot = this.buffer.read(cx).snapshot(cx);
5377
5378 for selection in selections.iter() {
5379 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5380 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5381 if selection_start.buffer_id != selection_end.buffer_id {
5382 continue;
5383 }
5384 if let Some(ranges) =
5385 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5386 {
5387 for (buffer, entries) in ranges {
5388 linked_ranges.entry(buffer).or_default().extend(entries);
5389 }
5390 }
5391 }
5392 }
5393
5394 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5395 if !this.selections.line_mode {
5396 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5397 for selection in &mut selections {
5398 if selection.is_empty() {
5399 let old_head = selection.head();
5400 let mut new_head =
5401 movement::left(&display_map, old_head.to_display_point(&display_map))
5402 .to_point(&display_map);
5403 if let Some((buffer, line_buffer_range)) = display_map
5404 .buffer_snapshot
5405 .buffer_line_for_row(MultiBufferRow(old_head.row))
5406 {
5407 let indent_size =
5408 buffer.indent_size_for_line(line_buffer_range.start.row);
5409 let indent_len = match indent_size.kind {
5410 IndentKind::Space => {
5411 buffer.settings_at(line_buffer_range.start, cx).tab_size
5412 }
5413 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5414 };
5415 if old_head.column <= indent_size.len && old_head.column > 0 {
5416 let indent_len = indent_len.get();
5417 new_head = cmp::min(
5418 new_head,
5419 MultiBufferPoint::new(
5420 old_head.row,
5421 ((old_head.column - 1) / indent_len) * indent_len,
5422 ),
5423 );
5424 }
5425 }
5426
5427 selection.set_head(new_head, SelectionGoal::None);
5428 }
5429 }
5430 }
5431
5432 this.signature_help_state.set_backspace_pressed(true);
5433 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5434 this.insert("", cx);
5435 let empty_str: Arc<str> = Arc::from("");
5436 for (buffer, edits) in linked_ranges {
5437 let snapshot = buffer.read(cx).snapshot();
5438 use text::ToPoint as TP;
5439
5440 let edits = edits
5441 .into_iter()
5442 .map(|range| {
5443 let end_point = TP::to_point(&range.end, &snapshot);
5444 let mut start_point = TP::to_point(&range.start, &snapshot);
5445
5446 if end_point == start_point {
5447 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5448 .saturating_sub(1);
5449 start_point =
5450 snapshot.clip_point(TP::to_point(&offset, &snapshot), Bias::Left);
5451 };
5452
5453 (start_point..end_point, empty_str.clone())
5454 })
5455 .sorted_by_key(|(range, _)| range.start)
5456 .collect::<Vec<_>>();
5457 buffer.update(cx, |this, cx| {
5458 this.edit(edits, None, cx);
5459 })
5460 }
5461 this.refresh_inline_completion(true, false, cx);
5462 linked_editing_ranges::refresh_linked_ranges(this, cx);
5463 });
5464 }
5465
5466 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5467 self.transact(cx, |this, cx| {
5468 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5469 let line_mode = s.line_mode;
5470 s.move_with(|map, selection| {
5471 if selection.is_empty() && !line_mode {
5472 let cursor = movement::right(map, selection.head());
5473 selection.end = cursor;
5474 selection.reversed = true;
5475 selection.goal = SelectionGoal::None;
5476 }
5477 })
5478 });
5479 this.insert("", cx);
5480 this.refresh_inline_completion(true, false, cx);
5481 });
5482 }
5483
5484 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5485 if self.move_to_prev_snippet_tabstop(cx) {
5486 return;
5487 }
5488
5489 self.outdent(&Outdent, cx);
5490 }
5491
5492 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5493 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5494 return;
5495 }
5496
5497 let mut selections = self.selections.all_adjusted(cx);
5498 let buffer = self.buffer.read(cx);
5499 let snapshot = buffer.snapshot(cx);
5500 let rows_iter = selections.iter().map(|s| s.head().row);
5501 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5502
5503 let mut edits = Vec::new();
5504 let mut prev_edited_row = 0;
5505 let mut row_delta = 0;
5506 for selection in &mut selections {
5507 if selection.start.row != prev_edited_row {
5508 row_delta = 0;
5509 }
5510 prev_edited_row = selection.end.row;
5511
5512 // If the selection is non-empty, then increase the indentation of the selected lines.
5513 if !selection.is_empty() {
5514 row_delta =
5515 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5516 continue;
5517 }
5518
5519 // If the selection is empty and the cursor is in the leading whitespace before the
5520 // suggested indentation, then auto-indent the line.
5521 let cursor = selection.head();
5522 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5523 if let Some(suggested_indent) =
5524 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5525 {
5526 if cursor.column < suggested_indent.len
5527 && cursor.column <= current_indent.len
5528 && current_indent.len <= suggested_indent.len
5529 {
5530 selection.start = Point::new(cursor.row, suggested_indent.len);
5531 selection.end = selection.start;
5532 if row_delta == 0 {
5533 edits.extend(Buffer::edit_for_indent_size_adjustment(
5534 cursor.row,
5535 current_indent,
5536 suggested_indent,
5537 ));
5538 row_delta = suggested_indent.len - current_indent.len;
5539 }
5540 continue;
5541 }
5542 }
5543
5544 // Otherwise, insert a hard or soft tab.
5545 let settings = buffer.settings_at(cursor, cx);
5546 let tab_size = if settings.hard_tabs {
5547 IndentSize::tab()
5548 } else {
5549 let tab_size = settings.tab_size.get();
5550 let char_column = snapshot
5551 .text_for_range(Point::new(cursor.row, 0)..cursor)
5552 .flat_map(str::chars)
5553 .count()
5554 + row_delta as usize;
5555 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5556 IndentSize::spaces(chars_to_next_tab_stop)
5557 };
5558 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5559 selection.end = selection.start;
5560 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5561 row_delta += tab_size.len;
5562 }
5563
5564 self.transact(cx, |this, cx| {
5565 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5566 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5567 this.refresh_inline_completion(true, false, cx);
5568 });
5569 }
5570
5571 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5572 if self.read_only(cx) {
5573 return;
5574 }
5575 let mut selections = self.selections.all::<Point>(cx);
5576 let mut prev_edited_row = 0;
5577 let mut row_delta = 0;
5578 let mut edits = Vec::new();
5579 let buffer = self.buffer.read(cx);
5580 let snapshot = buffer.snapshot(cx);
5581 for selection in &mut selections {
5582 if selection.start.row != prev_edited_row {
5583 row_delta = 0;
5584 }
5585 prev_edited_row = selection.end.row;
5586
5587 row_delta =
5588 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5589 }
5590
5591 self.transact(cx, |this, cx| {
5592 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5593 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5594 });
5595 }
5596
5597 fn indent_selection(
5598 buffer: &MultiBuffer,
5599 snapshot: &MultiBufferSnapshot,
5600 selection: &mut Selection<Point>,
5601 edits: &mut Vec<(Range<Point>, String)>,
5602 delta_for_start_row: u32,
5603 cx: &AppContext,
5604 ) -> u32 {
5605 let settings = buffer.settings_at(selection.start, cx);
5606 let tab_size = settings.tab_size.get();
5607 let indent_kind = if settings.hard_tabs {
5608 IndentKind::Tab
5609 } else {
5610 IndentKind::Space
5611 };
5612 let mut start_row = selection.start.row;
5613 let mut end_row = selection.end.row + 1;
5614
5615 // If a selection ends at the beginning of a line, don't indent
5616 // that last line.
5617 if selection.end.column == 0 && selection.end.row > selection.start.row {
5618 end_row -= 1;
5619 }
5620
5621 // Avoid re-indenting a row that has already been indented by a
5622 // previous selection, but still update this selection's column
5623 // to reflect that indentation.
5624 if delta_for_start_row > 0 {
5625 start_row += 1;
5626 selection.start.column += delta_for_start_row;
5627 if selection.end.row == selection.start.row {
5628 selection.end.column += delta_for_start_row;
5629 }
5630 }
5631
5632 let mut delta_for_end_row = 0;
5633 let has_multiple_rows = start_row + 1 != end_row;
5634 for row in start_row..end_row {
5635 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5636 let indent_delta = match (current_indent.kind, indent_kind) {
5637 (IndentKind::Space, IndentKind::Space) => {
5638 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5639 IndentSize::spaces(columns_to_next_tab_stop)
5640 }
5641 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5642 (_, IndentKind::Tab) => IndentSize::tab(),
5643 };
5644
5645 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5646 0
5647 } else {
5648 selection.start.column
5649 };
5650 let row_start = Point::new(row, start);
5651 edits.push((
5652 row_start..row_start,
5653 indent_delta.chars().collect::<String>(),
5654 ));
5655
5656 // Update this selection's endpoints to reflect the indentation.
5657 if row == selection.start.row {
5658 selection.start.column += indent_delta.len;
5659 }
5660 if row == selection.end.row {
5661 selection.end.column += indent_delta.len;
5662 delta_for_end_row = indent_delta.len;
5663 }
5664 }
5665
5666 if selection.start.row == selection.end.row {
5667 delta_for_start_row + delta_for_end_row
5668 } else {
5669 delta_for_end_row
5670 }
5671 }
5672
5673 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5674 if self.read_only(cx) {
5675 return;
5676 }
5677 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5678 let selections = self.selections.all::<Point>(cx);
5679 let mut deletion_ranges = Vec::new();
5680 let mut last_outdent = None;
5681 {
5682 let buffer = self.buffer.read(cx);
5683 let snapshot = buffer.snapshot(cx);
5684 for selection in &selections {
5685 let settings = buffer.settings_at(selection.start, cx);
5686 let tab_size = settings.tab_size.get();
5687 let mut rows = selection.spanned_rows(false, &display_map);
5688
5689 // Avoid re-outdenting a row that has already been outdented by a
5690 // previous selection.
5691 if let Some(last_row) = last_outdent {
5692 if last_row == rows.start {
5693 rows.start = rows.start.next_row();
5694 }
5695 }
5696 let has_multiple_rows = rows.len() > 1;
5697 for row in rows.iter_rows() {
5698 let indent_size = snapshot.indent_size_for_line(row);
5699 if indent_size.len > 0 {
5700 let deletion_len = match indent_size.kind {
5701 IndentKind::Space => {
5702 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5703 if columns_to_prev_tab_stop == 0 {
5704 tab_size
5705 } else {
5706 columns_to_prev_tab_stop
5707 }
5708 }
5709 IndentKind::Tab => 1,
5710 };
5711 let start = if has_multiple_rows
5712 || deletion_len > selection.start.column
5713 || indent_size.len < selection.start.column
5714 {
5715 0
5716 } else {
5717 selection.start.column - deletion_len
5718 };
5719 deletion_ranges.push(
5720 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5721 );
5722 last_outdent = Some(row);
5723 }
5724 }
5725 }
5726 }
5727
5728 self.transact(cx, |this, cx| {
5729 this.buffer.update(cx, |buffer, cx| {
5730 let empty_str: Arc<str> = Arc::default();
5731 buffer.edit(
5732 deletion_ranges
5733 .into_iter()
5734 .map(|range| (range, empty_str.clone())),
5735 None,
5736 cx,
5737 );
5738 });
5739 let selections = this.selections.all::<usize>(cx);
5740 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5741 });
5742 }
5743
5744 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
5745 if self.read_only(cx) {
5746 return;
5747 }
5748 let selections = self
5749 .selections
5750 .all::<usize>(cx)
5751 .into_iter()
5752 .map(|s| s.range());
5753
5754 self.transact(cx, |this, cx| {
5755 this.buffer.update(cx, |buffer, cx| {
5756 buffer.autoindent_ranges(selections, cx);
5757 });
5758 let selections = this.selections.all::<usize>(cx);
5759 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5760 });
5761 }
5762
5763 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5764 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5765 let selections = self.selections.all::<Point>(cx);
5766
5767 let mut new_cursors = Vec::new();
5768 let mut edit_ranges = Vec::new();
5769 let mut selections = selections.iter().peekable();
5770 while let Some(selection) = selections.next() {
5771 let mut rows = selection.spanned_rows(false, &display_map);
5772 let goal_display_column = selection.head().to_display_point(&display_map).column();
5773
5774 // Accumulate contiguous regions of rows that we want to delete.
5775 while let Some(next_selection) = selections.peek() {
5776 let next_rows = next_selection.spanned_rows(false, &display_map);
5777 if next_rows.start <= rows.end {
5778 rows.end = next_rows.end;
5779 selections.next().unwrap();
5780 } else {
5781 break;
5782 }
5783 }
5784
5785 let buffer = &display_map.buffer_snapshot;
5786 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5787 let edit_end;
5788 let cursor_buffer_row;
5789 if buffer.max_point().row >= rows.end.0 {
5790 // If there's a line after the range, delete the \n from the end of the row range
5791 // and position the cursor on the next line.
5792 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5793 cursor_buffer_row = rows.end;
5794 } else {
5795 // If there isn't a line after the range, delete the \n from the line before the
5796 // start of the row range and position the cursor there.
5797 edit_start = edit_start.saturating_sub(1);
5798 edit_end = buffer.len();
5799 cursor_buffer_row = rows.start.previous_row();
5800 }
5801
5802 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5803 *cursor.column_mut() =
5804 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5805
5806 new_cursors.push((
5807 selection.id,
5808 buffer.anchor_after(cursor.to_point(&display_map)),
5809 ));
5810 edit_ranges.push(edit_start..edit_end);
5811 }
5812
5813 self.transact(cx, |this, cx| {
5814 let buffer = this.buffer.update(cx, |buffer, cx| {
5815 let empty_str: Arc<str> = Arc::default();
5816 buffer.edit(
5817 edit_ranges
5818 .into_iter()
5819 .map(|range| (range, empty_str.clone())),
5820 None,
5821 cx,
5822 );
5823 buffer.snapshot(cx)
5824 });
5825 let new_selections = new_cursors
5826 .into_iter()
5827 .map(|(id, cursor)| {
5828 let cursor = cursor.to_point(&buffer);
5829 Selection {
5830 id,
5831 start: cursor,
5832 end: cursor,
5833 reversed: false,
5834 goal: SelectionGoal::None,
5835 }
5836 })
5837 .collect();
5838
5839 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5840 s.select(new_selections);
5841 });
5842 });
5843 }
5844
5845 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5846 if self.read_only(cx) {
5847 return;
5848 }
5849 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5850 for selection in self.selections.all::<Point>(cx) {
5851 let start = MultiBufferRow(selection.start.row);
5852 // Treat single line selections as if they include the next line. Otherwise this action
5853 // would do nothing for single line selections individual cursors.
5854 let end = if selection.start.row == selection.end.row {
5855 MultiBufferRow(selection.start.row + 1)
5856 } else {
5857 MultiBufferRow(selection.end.row)
5858 };
5859
5860 if let Some(last_row_range) = row_ranges.last_mut() {
5861 if start <= last_row_range.end {
5862 last_row_range.end = end;
5863 continue;
5864 }
5865 }
5866 row_ranges.push(start..end);
5867 }
5868
5869 let snapshot = self.buffer.read(cx).snapshot(cx);
5870 let mut cursor_positions = Vec::new();
5871 for row_range in &row_ranges {
5872 let anchor = snapshot.anchor_before(Point::new(
5873 row_range.end.previous_row().0,
5874 snapshot.line_len(row_range.end.previous_row()),
5875 ));
5876 cursor_positions.push(anchor..anchor);
5877 }
5878
5879 self.transact(cx, |this, cx| {
5880 for row_range in row_ranges.into_iter().rev() {
5881 for row in row_range.iter_rows().rev() {
5882 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5883 let next_line_row = row.next_row();
5884 let indent = snapshot.indent_size_for_line(next_line_row);
5885 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5886
5887 let replace = if snapshot.line_len(next_line_row) > indent.len {
5888 " "
5889 } else {
5890 ""
5891 };
5892
5893 this.buffer.update(cx, |buffer, cx| {
5894 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5895 });
5896 }
5897 }
5898
5899 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5900 s.select_anchor_ranges(cursor_positions)
5901 });
5902 });
5903 }
5904
5905 pub fn sort_lines_case_sensitive(
5906 &mut self,
5907 _: &SortLinesCaseSensitive,
5908 cx: &mut ViewContext<Self>,
5909 ) {
5910 self.manipulate_lines(cx, |lines| lines.sort())
5911 }
5912
5913 pub fn sort_lines_case_insensitive(
5914 &mut self,
5915 _: &SortLinesCaseInsensitive,
5916 cx: &mut ViewContext<Self>,
5917 ) {
5918 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5919 }
5920
5921 pub fn unique_lines_case_insensitive(
5922 &mut self,
5923 _: &UniqueLinesCaseInsensitive,
5924 cx: &mut ViewContext<Self>,
5925 ) {
5926 self.manipulate_lines(cx, |lines| {
5927 let mut seen = HashSet::default();
5928 lines.retain(|line| seen.insert(line.to_lowercase()));
5929 })
5930 }
5931
5932 pub fn unique_lines_case_sensitive(
5933 &mut self,
5934 _: &UniqueLinesCaseSensitive,
5935 cx: &mut ViewContext<Self>,
5936 ) {
5937 self.manipulate_lines(cx, |lines| {
5938 let mut seen = HashSet::default();
5939 lines.retain(|line| seen.insert(*line));
5940 })
5941 }
5942
5943 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
5944 let mut revert_changes = HashMap::default();
5945 let snapshot = self.snapshot(cx);
5946 for hunk in hunks_for_ranges(
5947 Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter(),
5948 &snapshot,
5949 ) {
5950 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5951 }
5952 if !revert_changes.is_empty() {
5953 self.transact(cx, |editor, cx| {
5954 editor.revert(revert_changes, cx);
5955 });
5956 }
5957 }
5958
5959 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
5960 let Some(project) = self.project.clone() else {
5961 return;
5962 };
5963 self.reload(project, cx).detach_and_notify_err(cx);
5964 }
5965
5966 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5967 let revert_changes = self.gather_revert_changes(&self.selections.all(cx), cx);
5968 if !revert_changes.is_empty() {
5969 self.transact(cx, |editor, cx| {
5970 editor.revert(revert_changes, cx);
5971 });
5972 }
5973 }
5974
5975 fn revert_hunk(&mut self, hunk: HoveredHunk, cx: &mut ViewContext<Editor>) {
5976 let snapshot = self.buffer.read(cx).read(cx);
5977 if let Some(hunk) = crate::hunk_diff::to_diff_hunk(&hunk, &snapshot) {
5978 drop(snapshot);
5979 let mut revert_changes = HashMap::default();
5980 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5981 if !revert_changes.is_empty() {
5982 self.revert(revert_changes, cx)
5983 }
5984 }
5985 }
5986
5987 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5988 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5989 let project_path = buffer.read(cx).project_path(cx)?;
5990 let project = self.project.as_ref()?.read(cx);
5991 let entry = project.entry_for_path(&project_path, cx)?;
5992 let parent = match &entry.canonical_path {
5993 Some(canonical_path) => canonical_path.to_path_buf(),
5994 None => project.absolute_path(&project_path, cx)?,
5995 }
5996 .parent()?
5997 .to_path_buf();
5998 Some(parent)
5999 }) {
6000 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6001 }
6002 }
6003
6004 fn gather_revert_changes(
6005 &mut self,
6006 selections: &[Selection<Point>],
6007 cx: &mut ViewContext<'_, Editor>,
6008 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6009 let mut revert_changes = HashMap::default();
6010 let snapshot = self.snapshot(cx);
6011 for hunk in hunks_for_selections(&snapshot, selections) {
6012 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6013 }
6014 revert_changes
6015 }
6016
6017 pub fn prepare_revert_change(
6018 &mut self,
6019 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6020 hunk: &MultiBufferDiffHunk,
6021 cx: &AppContext,
6022 ) -> Option<()> {
6023 let buffer = self.buffer.read(cx).buffer(hunk.buffer_id)?;
6024 let buffer = buffer.read(cx);
6025 let change_set = &self.diff_map.diff_bases.get(&hunk.buffer_id)?.change_set;
6026 let original_text = change_set
6027 .read(cx)
6028 .base_text
6029 .as_ref()?
6030 .read(cx)
6031 .as_rope()
6032 .slice(hunk.diff_base_byte_range.clone());
6033 let buffer_snapshot = buffer.snapshot();
6034 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6035 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6036 probe
6037 .0
6038 .start
6039 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6040 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6041 }) {
6042 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6043 Some(())
6044 } else {
6045 None
6046 }
6047 }
6048
6049 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6050 self.manipulate_lines(cx, |lines| lines.reverse())
6051 }
6052
6053 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6054 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6055 }
6056
6057 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6058 where
6059 Fn: FnMut(&mut Vec<&str>),
6060 {
6061 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6062 let buffer = self.buffer.read(cx).snapshot(cx);
6063
6064 let mut edits = Vec::new();
6065
6066 let selections = self.selections.all::<Point>(cx);
6067 let mut selections = selections.iter().peekable();
6068 let mut contiguous_row_selections = Vec::new();
6069 let mut new_selections = Vec::new();
6070 let mut added_lines = 0;
6071 let mut removed_lines = 0;
6072
6073 while let Some(selection) = selections.next() {
6074 let (start_row, end_row) = consume_contiguous_rows(
6075 &mut contiguous_row_selections,
6076 selection,
6077 &display_map,
6078 &mut selections,
6079 );
6080
6081 let start_point = Point::new(start_row.0, 0);
6082 let end_point = Point::new(
6083 end_row.previous_row().0,
6084 buffer.line_len(end_row.previous_row()),
6085 );
6086 let text = buffer
6087 .text_for_range(start_point..end_point)
6088 .collect::<String>();
6089
6090 let mut lines = text.split('\n').collect_vec();
6091
6092 let lines_before = lines.len();
6093 callback(&mut lines);
6094 let lines_after = lines.len();
6095
6096 edits.push((start_point..end_point, lines.join("\n")));
6097
6098 // Selections must change based on added and removed line count
6099 let start_row =
6100 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6101 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6102 new_selections.push(Selection {
6103 id: selection.id,
6104 start: start_row,
6105 end: end_row,
6106 goal: SelectionGoal::None,
6107 reversed: selection.reversed,
6108 });
6109
6110 if lines_after > lines_before {
6111 added_lines += lines_after - lines_before;
6112 } else if lines_before > lines_after {
6113 removed_lines += lines_before - lines_after;
6114 }
6115 }
6116
6117 self.transact(cx, |this, cx| {
6118 let buffer = this.buffer.update(cx, |buffer, cx| {
6119 buffer.edit(edits, None, cx);
6120 buffer.snapshot(cx)
6121 });
6122
6123 // Recalculate offsets on newly edited buffer
6124 let new_selections = new_selections
6125 .iter()
6126 .map(|s| {
6127 let start_point = Point::new(s.start.0, 0);
6128 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6129 Selection {
6130 id: s.id,
6131 start: buffer.point_to_offset(start_point),
6132 end: buffer.point_to_offset(end_point),
6133 goal: s.goal,
6134 reversed: s.reversed,
6135 }
6136 })
6137 .collect();
6138
6139 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6140 s.select(new_selections);
6141 });
6142
6143 this.request_autoscroll(Autoscroll::fit(), cx);
6144 });
6145 }
6146
6147 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6148 self.manipulate_text(cx, |text| text.to_uppercase())
6149 }
6150
6151 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6152 self.manipulate_text(cx, |text| text.to_lowercase())
6153 }
6154
6155 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6156 self.manipulate_text(cx, |text| {
6157 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6158 // https://github.com/rutrum/convert-case/issues/16
6159 text.split('\n')
6160 .map(|line| line.to_case(Case::Title))
6161 .join("\n")
6162 })
6163 }
6164
6165 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6166 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6167 }
6168
6169 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6170 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6171 }
6172
6173 pub fn convert_to_upper_camel_case(
6174 &mut self,
6175 _: &ConvertToUpperCamelCase,
6176 cx: &mut ViewContext<Self>,
6177 ) {
6178 self.manipulate_text(cx, |text| {
6179 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6180 // https://github.com/rutrum/convert-case/issues/16
6181 text.split('\n')
6182 .map(|line| line.to_case(Case::UpperCamel))
6183 .join("\n")
6184 })
6185 }
6186
6187 pub fn convert_to_lower_camel_case(
6188 &mut self,
6189 _: &ConvertToLowerCamelCase,
6190 cx: &mut ViewContext<Self>,
6191 ) {
6192 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6193 }
6194
6195 pub fn convert_to_opposite_case(
6196 &mut self,
6197 _: &ConvertToOppositeCase,
6198 cx: &mut ViewContext<Self>,
6199 ) {
6200 self.manipulate_text(cx, |text| {
6201 text.chars()
6202 .fold(String::with_capacity(text.len()), |mut t, c| {
6203 if c.is_uppercase() {
6204 t.extend(c.to_lowercase());
6205 } else {
6206 t.extend(c.to_uppercase());
6207 }
6208 t
6209 })
6210 })
6211 }
6212
6213 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6214 where
6215 Fn: FnMut(&str) -> String,
6216 {
6217 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6218 let buffer = self.buffer.read(cx).snapshot(cx);
6219
6220 let mut new_selections = Vec::new();
6221 let mut edits = Vec::new();
6222 let mut selection_adjustment = 0i32;
6223
6224 for selection in self.selections.all::<usize>(cx) {
6225 let selection_is_empty = selection.is_empty();
6226
6227 let (start, end) = if selection_is_empty {
6228 let word_range = movement::surrounding_word(
6229 &display_map,
6230 selection.start.to_display_point(&display_map),
6231 );
6232 let start = word_range.start.to_offset(&display_map, Bias::Left);
6233 let end = word_range.end.to_offset(&display_map, Bias::Left);
6234 (start, end)
6235 } else {
6236 (selection.start, selection.end)
6237 };
6238
6239 let text = buffer.text_for_range(start..end).collect::<String>();
6240 let old_length = text.len() as i32;
6241 let text = callback(&text);
6242
6243 new_selections.push(Selection {
6244 start: (start as i32 - selection_adjustment) as usize,
6245 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6246 goal: SelectionGoal::None,
6247 ..selection
6248 });
6249
6250 selection_adjustment += old_length - text.len() as i32;
6251
6252 edits.push((start..end, text));
6253 }
6254
6255 self.transact(cx, |this, cx| {
6256 this.buffer.update(cx, |buffer, cx| {
6257 buffer.edit(edits, None, cx);
6258 });
6259
6260 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6261 s.select(new_selections);
6262 });
6263
6264 this.request_autoscroll(Autoscroll::fit(), cx);
6265 });
6266 }
6267
6268 pub fn duplicate(&mut self, upwards: bool, whole_lines: bool, cx: &mut ViewContext<Self>) {
6269 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6270 let buffer = &display_map.buffer_snapshot;
6271 let selections = self.selections.all::<Point>(cx);
6272
6273 let mut edits = Vec::new();
6274 let mut selections_iter = selections.iter().peekable();
6275 while let Some(selection) = selections_iter.next() {
6276 let mut rows = selection.spanned_rows(false, &display_map);
6277 // duplicate line-wise
6278 if whole_lines || selection.start == selection.end {
6279 // Avoid duplicating the same lines twice.
6280 while let Some(next_selection) = selections_iter.peek() {
6281 let next_rows = next_selection.spanned_rows(false, &display_map);
6282 if next_rows.start < rows.end {
6283 rows.end = next_rows.end;
6284 selections_iter.next().unwrap();
6285 } else {
6286 break;
6287 }
6288 }
6289
6290 // Copy the text from the selected row region and splice it either at the start
6291 // or end of the region.
6292 let start = Point::new(rows.start.0, 0);
6293 let end = Point::new(
6294 rows.end.previous_row().0,
6295 buffer.line_len(rows.end.previous_row()),
6296 );
6297 let text = buffer
6298 .text_for_range(start..end)
6299 .chain(Some("\n"))
6300 .collect::<String>();
6301 let insert_location = if upwards {
6302 Point::new(rows.end.0, 0)
6303 } else {
6304 start
6305 };
6306 edits.push((insert_location..insert_location, text));
6307 } else {
6308 // duplicate character-wise
6309 let start = selection.start;
6310 let end = selection.end;
6311 let text = buffer.text_for_range(start..end).collect::<String>();
6312 edits.push((selection.end..selection.end, text));
6313 }
6314 }
6315
6316 self.transact(cx, |this, cx| {
6317 this.buffer.update(cx, |buffer, cx| {
6318 buffer.edit(edits, None, cx);
6319 });
6320
6321 this.request_autoscroll(Autoscroll::fit(), cx);
6322 });
6323 }
6324
6325 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6326 self.duplicate(true, true, cx);
6327 }
6328
6329 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6330 self.duplicate(false, true, cx);
6331 }
6332
6333 pub fn duplicate_selection(&mut self, _: &DuplicateSelection, cx: &mut ViewContext<Self>) {
6334 self.duplicate(false, false, cx);
6335 }
6336
6337 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6338 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6339 let buffer = self.buffer.read(cx).snapshot(cx);
6340
6341 let mut edits = Vec::new();
6342 let mut unfold_ranges = Vec::new();
6343 let mut refold_creases = Vec::new();
6344
6345 let selections = self.selections.all::<Point>(cx);
6346 let mut selections = selections.iter().peekable();
6347 let mut contiguous_row_selections = Vec::new();
6348 let mut new_selections = Vec::new();
6349
6350 while let Some(selection) = selections.next() {
6351 // Find all the selections that span a contiguous row range
6352 let (start_row, end_row) = consume_contiguous_rows(
6353 &mut contiguous_row_selections,
6354 selection,
6355 &display_map,
6356 &mut selections,
6357 );
6358
6359 // Move the text spanned by the row range to be before the line preceding the row range
6360 if start_row.0 > 0 {
6361 let range_to_move = Point::new(
6362 start_row.previous_row().0,
6363 buffer.line_len(start_row.previous_row()),
6364 )
6365 ..Point::new(
6366 end_row.previous_row().0,
6367 buffer.line_len(end_row.previous_row()),
6368 );
6369 let insertion_point = display_map
6370 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6371 .0;
6372
6373 // Don't move lines across excerpts
6374 if buffer
6375 .excerpt_boundaries_in_range((
6376 Bound::Excluded(insertion_point),
6377 Bound::Included(range_to_move.end),
6378 ))
6379 .next()
6380 .is_none()
6381 {
6382 let text = buffer
6383 .text_for_range(range_to_move.clone())
6384 .flat_map(|s| s.chars())
6385 .skip(1)
6386 .chain(['\n'])
6387 .collect::<String>();
6388
6389 edits.push((
6390 buffer.anchor_after(range_to_move.start)
6391 ..buffer.anchor_before(range_to_move.end),
6392 String::new(),
6393 ));
6394 let insertion_anchor = buffer.anchor_after(insertion_point);
6395 edits.push((insertion_anchor..insertion_anchor, text));
6396
6397 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6398
6399 // Move selections up
6400 new_selections.extend(contiguous_row_selections.drain(..).map(
6401 |mut selection| {
6402 selection.start.row -= row_delta;
6403 selection.end.row -= row_delta;
6404 selection
6405 },
6406 ));
6407
6408 // Move folds up
6409 unfold_ranges.push(range_to_move.clone());
6410 for fold in display_map.folds_in_range(
6411 buffer.anchor_before(range_to_move.start)
6412 ..buffer.anchor_after(range_to_move.end),
6413 ) {
6414 let mut start = fold.range.start.to_point(&buffer);
6415 let mut end = fold.range.end.to_point(&buffer);
6416 start.row -= row_delta;
6417 end.row -= row_delta;
6418 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6419 }
6420 }
6421 }
6422
6423 // If we didn't move line(s), preserve the existing selections
6424 new_selections.append(&mut contiguous_row_selections);
6425 }
6426
6427 self.transact(cx, |this, cx| {
6428 this.unfold_ranges(&unfold_ranges, true, true, cx);
6429 this.buffer.update(cx, |buffer, cx| {
6430 for (range, text) in edits {
6431 buffer.edit([(range, text)], None, cx);
6432 }
6433 });
6434 this.fold_creases(refold_creases, true, cx);
6435 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6436 s.select(new_selections);
6437 })
6438 });
6439 }
6440
6441 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6442 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6443 let buffer = self.buffer.read(cx).snapshot(cx);
6444
6445 let mut edits = Vec::new();
6446 let mut unfold_ranges = Vec::new();
6447 let mut refold_creases = Vec::new();
6448
6449 let selections = self.selections.all::<Point>(cx);
6450 let mut selections = selections.iter().peekable();
6451 let mut contiguous_row_selections = Vec::new();
6452 let mut new_selections = Vec::new();
6453
6454 while let Some(selection) = selections.next() {
6455 // Find all the selections that span a contiguous row range
6456 let (start_row, end_row) = consume_contiguous_rows(
6457 &mut contiguous_row_selections,
6458 selection,
6459 &display_map,
6460 &mut selections,
6461 );
6462
6463 // Move the text spanned by the row range to be after the last line of the row range
6464 if end_row.0 <= buffer.max_point().row {
6465 let range_to_move =
6466 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6467 let insertion_point = display_map
6468 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6469 .0;
6470
6471 // Don't move lines across excerpt boundaries
6472 if buffer
6473 .excerpt_boundaries_in_range((
6474 Bound::Excluded(range_to_move.start),
6475 Bound::Included(insertion_point),
6476 ))
6477 .next()
6478 .is_none()
6479 {
6480 let mut text = String::from("\n");
6481 text.extend(buffer.text_for_range(range_to_move.clone()));
6482 text.pop(); // Drop trailing newline
6483 edits.push((
6484 buffer.anchor_after(range_to_move.start)
6485 ..buffer.anchor_before(range_to_move.end),
6486 String::new(),
6487 ));
6488 let insertion_anchor = buffer.anchor_after(insertion_point);
6489 edits.push((insertion_anchor..insertion_anchor, text));
6490
6491 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6492
6493 // Move selections down
6494 new_selections.extend(contiguous_row_selections.drain(..).map(
6495 |mut selection| {
6496 selection.start.row += row_delta;
6497 selection.end.row += row_delta;
6498 selection
6499 },
6500 ));
6501
6502 // Move folds down
6503 unfold_ranges.push(range_to_move.clone());
6504 for fold in display_map.folds_in_range(
6505 buffer.anchor_before(range_to_move.start)
6506 ..buffer.anchor_after(range_to_move.end),
6507 ) {
6508 let mut start = fold.range.start.to_point(&buffer);
6509 let mut end = fold.range.end.to_point(&buffer);
6510 start.row += row_delta;
6511 end.row += row_delta;
6512 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6513 }
6514 }
6515 }
6516
6517 // If we didn't move line(s), preserve the existing selections
6518 new_selections.append(&mut contiguous_row_selections);
6519 }
6520
6521 self.transact(cx, |this, cx| {
6522 this.unfold_ranges(&unfold_ranges, true, true, cx);
6523 this.buffer.update(cx, |buffer, cx| {
6524 for (range, text) in edits {
6525 buffer.edit([(range, text)], None, cx);
6526 }
6527 });
6528 this.fold_creases(refold_creases, true, cx);
6529 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6530 });
6531 }
6532
6533 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6534 let text_layout_details = &self.text_layout_details(cx);
6535 self.transact(cx, |this, cx| {
6536 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6537 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6538 let line_mode = s.line_mode;
6539 s.move_with(|display_map, selection| {
6540 if !selection.is_empty() || line_mode {
6541 return;
6542 }
6543
6544 let mut head = selection.head();
6545 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6546 if head.column() == display_map.line_len(head.row()) {
6547 transpose_offset = display_map
6548 .buffer_snapshot
6549 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6550 }
6551
6552 if transpose_offset == 0 {
6553 return;
6554 }
6555
6556 *head.column_mut() += 1;
6557 head = display_map.clip_point(head, Bias::Right);
6558 let goal = SelectionGoal::HorizontalPosition(
6559 display_map
6560 .x_for_display_point(head, text_layout_details)
6561 .into(),
6562 );
6563 selection.collapse_to(head, goal);
6564
6565 let transpose_start = display_map
6566 .buffer_snapshot
6567 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6568 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6569 let transpose_end = display_map
6570 .buffer_snapshot
6571 .clip_offset(transpose_offset + 1, Bias::Right);
6572 if let Some(ch) =
6573 display_map.buffer_snapshot.chars_at(transpose_start).next()
6574 {
6575 edits.push((transpose_start..transpose_offset, String::new()));
6576 edits.push((transpose_end..transpose_end, ch.to_string()));
6577 }
6578 }
6579 });
6580 edits
6581 });
6582 this.buffer
6583 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6584 let selections = this.selections.all::<usize>(cx);
6585 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6586 s.select(selections);
6587 });
6588 });
6589 }
6590
6591 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6592 self.rewrap_impl(IsVimMode::No, cx)
6593 }
6594
6595 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
6596 let buffer = self.buffer.read(cx).snapshot(cx);
6597 let selections = self.selections.all::<Point>(cx);
6598 let mut selections = selections.iter().peekable();
6599
6600 let mut edits = Vec::new();
6601 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6602
6603 while let Some(selection) = selections.next() {
6604 let mut start_row = selection.start.row;
6605 let mut end_row = selection.end.row;
6606
6607 // Skip selections that overlap with a range that has already been rewrapped.
6608 let selection_range = start_row..end_row;
6609 if rewrapped_row_ranges
6610 .iter()
6611 .any(|range| range.overlaps(&selection_range))
6612 {
6613 continue;
6614 }
6615
6616 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
6617
6618 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6619 match language_scope.language_name().0.as_ref() {
6620 "Markdown" | "Plain Text" => {
6621 should_rewrap = true;
6622 }
6623 _ => {}
6624 }
6625 }
6626
6627 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
6628
6629 // Since not all lines in the selection may be at the same indent
6630 // level, choose the indent size that is the most common between all
6631 // of the lines.
6632 //
6633 // If there is a tie, we use the deepest indent.
6634 let (indent_size, indent_end) = {
6635 let mut indent_size_occurrences = HashMap::default();
6636 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6637
6638 for row in start_row..=end_row {
6639 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6640 rows_by_indent_size.entry(indent).or_default().push(row);
6641 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6642 }
6643
6644 let indent_size = indent_size_occurrences
6645 .into_iter()
6646 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
6647 .map(|(indent, _)| indent)
6648 .unwrap_or_default();
6649 let row = rows_by_indent_size[&indent_size][0];
6650 let indent_end = Point::new(row, indent_size.len);
6651
6652 (indent_size, indent_end)
6653 };
6654
6655 let mut line_prefix = indent_size.chars().collect::<String>();
6656
6657 if let Some(comment_prefix) =
6658 buffer
6659 .language_scope_at(selection.head())
6660 .and_then(|language| {
6661 language
6662 .line_comment_prefixes()
6663 .iter()
6664 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6665 .cloned()
6666 })
6667 {
6668 line_prefix.push_str(&comment_prefix);
6669 should_rewrap = true;
6670 }
6671
6672 if !should_rewrap {
6673 continue;
6674 }
6675
6676 if selection.is_empty() {
6677 'expand_upwards: while start_row > 0 {
6678 let prev_row = start_row - 1;
6679 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6680 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6681 {
6682 start_row = prev_row;
6683 } else {
6684 break 'expand_upwards;
6685 }
6686 }
6687
6688 'expand_downwards: while end_row < buffer.max_point().row {
6689 let next_row = end_row + 1;
6690 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6691 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6692 {
6693 end_row = next_row;
6694 } else {
6695 break 'expand_downwards;
6696 }
6697 }
6698 }
6699
6700 let start = Point::new(start_row, 0);
6701 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6702 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6703 let Some(lines_without_prefixes) = selection_text
6704 .lines()
6705 .map(|line| {
6706 line.strip_prefix(&line_prefix)
6707 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6708 .ok_or_else(|| {
6709 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6710 })
6711 })
6712 .collect::<Result<Vec<_>, _>>()
6713 .log_err()
6714 else {
6715 continue;
6716 };
6717
6718 let wrap_column = buffer
6719 .settings_at(Point::new(start_row, 0), cx)
6720 .preferred_line_length as usize;
6721 let wrapped_text = wrap_with_prefix(
6722 line_prefix,
6723 lines_without_prefixes.join(" "),
6724 wrap_column,
6725 tab_size,
6726 );
6727
6728 // TODO: should always use char-based diff while still supporting cursor behavior that
6729 // matches vim.
6730 let diff = match is_vim_mode {
6731 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
6732 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
6733 };
6734 let mut offset = start.to_offset(&buffer);
6735 let mut moved_since_edit = true;
6736
6737 for change in diff.iter_all_changes() {
6738 let value = change.value();
6739 match change.tag() {
6740 ChangeTag::Equal => {
6741 offset += value.len();
6742 moved_since_edit = true;
6743 }
6744 ChangeTag::Delete => {
6745 let start = buffer.anchor_after(offset);
6746 let end = buffer.anchor_before(offset + value.len());
6747
6748 if moved_since_edit {
6749 edits.push((start..end, String::new()));
6750 } else {
6751 edits.last_mut().unwrap().0.end = end;
6752 }
6753
6754 offset += value.len();
6755 moved_since_edit = false;
6756 }
6757 ChangeTag::Insert => {
6758 if moved_since_edit {
6759 let anchor = buffer.anchor_after(offset);
6760 edits.push((anchor..anchor, value.to_string()));
6761 } else {
6762 edits.last_mut().unwrap().1.push_str(value);
6763 }
6764
6765 moved_since_edit = false;
6766 }
6767 }
6768 }
6769
6770 rewrapped_row_ranges.push(start_row..=end_row);
6771 }
6772
6773 self.buffer
6774 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6775 }
6776
6777 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
6778 let mut text = String::new();
6779 let buffer = self.buffer.read(cx).snapshot(cx);
6780 let mut selections = self.selections.all::<Point>(cx);
6781 let mut clipboard_selections = Vec::with_capacity(selections.len());
6782 {
6783 let max_point = buffer.max_point();
6784 let mut is_first = true;
6785 for selection in &mut selections {
6786 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6787 if is_entire_line {
6788 selection.start = Point::new(selection.start.row, 0);
6789 if !selection.is_empty() && selection.end.column == 0 {
6790 selection.end = cmp::min(max_point, selection.end);
6791 } else {
6792 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6793 }
6794 selection.goal = SelectionGoal::None;
6795 }
6796 if is_first {
6797 is_first = false;
6798 } else {
6799 text += "\n";
6800 }
6801 let mut len = 0;
6802 for chunk in buffer.text_for_range(selection.start..selection.end) {
6803 text.push_str(chunk);
6804 len += chunk.len();
6805 }
6806 clipboard_selections.push(ClipboardSelection {
6807 len,
6808 is_entire_line,
6809 first_line_indent: buffer
6810 .indent_size_for_line(MultiBufferRow(selection.start.row))
6811 .len,
6812 });
6813 }
6814 }
6815
6816 self.transact(cx, |this, cx| {
6817 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6818 s.select(selections);
6819 });
6820 this.insert("", cx);
6821 });
6822 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
6823 }
6824
6825 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6826 let item = self.cut_common(cx);
6827 cx.write_to_clipboard(item);
6828 }
6829
6830 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
6831 self.change_selections(None, cx, |s| {
6832 s.move_with(|snapshot, sel| {
6833 if sel.is_empty() {
6834 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
6835 }
6836 });
6837 });
6838 let item = self.cut_common(cx);
6839 cx.set_global(KillRing(item))
6840 }
6841
6842 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
6843 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
6844 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
6845 (kill_ring.text().to_string(), kill_ring.metadata_json())
6846 } else {
6847 return;
6848 }
6849 } else {
6850 return;
6851 };
6852 self.do_paste(&text, metadata, false, cx);
6853 }
6854
6855 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6856 let selections = self.selections.all::<Point>(cx);
6857 let buffer = self.buffer.read(cx).read(cx);
6858 let mut text = String::new();
6859
6860 let mut clipboard_selections = Vec::with_capacity(selections.len());
6861 {
6862 let max_point = buffer.max_point();
6863 let mut is_first = true;
6864 for selection in selections.iter() {
6865 let mut start = selection.start;
6866 let mut end = selection.end;
6867 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6868 if is_entire_line {
6869 start = Point::new(start.row, 0);
6870 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6871 }
6872 if is_first {
6873 is_first = false;
6874 } else {
6875 text += "\n";
6876 }
6877 let mut len = 0;
6878 for chunk in buffer.text_for_range(start..end) {
6879 text.push_str(chunk);
6880 len += chunk.len();
6881 }
6882 clipboard_selections.push(ClipboardSelection {
6883 len,
6884 is_entire_line,
6885 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6886 });
6887 }
6888 }
6889
6890 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6891 text,
6892 clipboard_selections,
6893 ));
6894 }
6895
6896 pub fn do_paste(
6897 &mut self,
6898 text: &String,
6899 clipboard_selections: Option<Vec<ClipboardSelection>>,
6900 handle_entire_lines: bool,
6901 cx: &mut ViewContext<Self>,
6902 ) {
6903 if self.read_only(cx) {
6904 return;
6905 }
6906
6907 let clipboard_text = Cow::Borrowed(text);
6908
6909 self.transact(cx, |this, cx| {
6910 if let Some(mut clipboard_selections) = clipboard_selections {
6911 let old_selections = this.selections.all::<usize>(cx);
6912 let all_selections_were_entire_line =
6913 clipboard_selections.iter().all(|s| s.is_entire_line);
6914 let first_selection_indent_column =
6915 clipboard_selections.first().map(|s| s.first_line_indent);
6916 if clipboard_selections.len() != old_selections.len() {
6917 clipboard_selections.drain(..);
6918 }
6919 let cursor_offset = this.selections.last::<usize>(cx).head();
6920 let mut auto_indent_on_paste = true;
6921
6922 this.buffer.update(cx, |buffer, cx| {
6923 let snapshot = buffer.read(cx);
6924 auto_indent_on_paste =
6925 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
6926
6927 let mut start_offset = 0;
6928 let mut edits = Vec::new();
6929 let mut original_indent_columns = Vec::new();
6930 for (ix, selection) in old_selections.iter().enumerate() {
6931 let to_insert;
6932 let entire_line;
6933 let original_indent_column;
6934 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6935 let end_offset = start_offset + clipboard_selection.len;
6936 to_insert = &clipboard_text[start_offset..end_offset];
6937 entire_line = clipboard_selection.is_entire_line;
6938 start_offset = end_offset + 1;
6939 original_indent_column = Some(clipboard_selection.first_line_indent);
6940 } else {
6941 to_insert = clipboard_text.as_str();
6942 entire_line = all_selections_were_entire_line;
6943 original_indent_column = first_selection_indent_column
6944 }
6945
6946 // If the corresponding selection was empty when this slice of the
6947 // clipboard text was written, then the entire line containing the
6948 // selection was copied. If this selection is also currently empty,
6949 // then paste the line before the current line of the buffer.
6950 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6951 let column = selection.start.to_point(&snapshot).column as usize;
6952 let line_start = selection.start - column;
6953 line_start..line_start
6954 } else {
6955 selection.range()
6956 };
6957
6958 edits.push((range, to_insert));
6959 original_indent_columns.extend(original_indent_column);
6960 }
6961 drop(snapshot);
6962
6963 buffer.edit(
6964 edits,
6965 if auto_indent_on_paste {
6966 Some(AutoindentMode::Block {
6967 original_indent_columns,
6968 })
6969 } else {
6970 None
6971 },
6972 cx,
6973 );
6974 });
6975
6976 let selections = this.selections.all::<usize>(cx);
6977 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6978 } else {
6979 this.insert(&clipboard_text, cx);
6980 }
6981 });
6982 }
6983
6984 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6985 if let Some(item) = cx.read_from_clipboard() {
6986 let entries = item.entries();
6987
6988 match entries.first() {
6989 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
6990 // of all the pasted entries.
6991 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
6992 .do_paste(
6993 clipboard_string.text(),
6994 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
6995 true,
6996 cx,
6997 ),
6998 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
6999 }
7000 }
7001 }
7002
7003 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7004 if self.read_only(cx) {
7005 return;
7006 }
7007
7008 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7009 if let Some((selections, _)) =
7010 self.selection_history.transaction(transaction_id).cloned()
7011 {
7012 self.change_selections(None, cx, |s| {
7013 s.select_anchors(selections.to_vec());
7014 });
7015 }
7016 self.request_autoscroll(Autoscroll::fit(), cx);
7017 self.unmark_text(cx);
7018 self.refresh_inline_completion(true, false, cx);
7019 cx.emit(EditorEvent::Edited { transaction_id });
7020 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7021 }
7022 }
7023
7024 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7025 if self.read_only(cx) {
7026 return;
7027 }
7028
7029 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7030 if let Some((_, Some(selections))) =
7031 self.selection_history.transaction(transaction_id).cloned()
7032 {
7033 self.change_selections(None, cx, |s| {
7034 s.select_anchors(selections.to_vec());
7035 });
7036 }
7037 self.request_autoscroll(Autoscroll::fit(), cx);
7038 self.unmark_text(cx);
7039 self.refresh_inline_completion(true, false, cx);
7040 cx.emit(EditorEvent::Edited { transaction_id });
7041 }
7042 }
7043
7044 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7045 self.buffer
7046 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7047 }
7048
7049 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7050 self.buffer
7051 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7052 }
7053
7054 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7055 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7056 let line_mode = s.line_mode;
7057 s.move_with(|map, selection| {
7058 let cursor = if selection.is_empty() && !line_mode {
7059 movement::left(map, selection.start)
7060 } else {
7061 selection.start
7062 };
7063 selection.collapse_to(cursor, SelectionGoal::None);
7064 });
7065 })
7066 }
7067
7068 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7069 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7070 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7071 })
7072 }
7073
7074 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7075 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7076 let line_mode = s.line_mode;
7077 s.move_with(|map, selection| {
7078 let cursor = if selection.is_empty() && !line_mode {
7079 movement::right(map, selection.end)
7080 } else {
7081 selection.end
7082 };
7083 selection.collapse_to(cursor, SelectionGoal::None)
7084 });
7085 })
7086 }
7087
7088 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7089 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7090 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7091 })
7092 }
7093
7094 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7095 if self.take_rename(true, cx).is_some() {
7096 return;
7097 }
7098
7099 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7100 cx.propagate();
7101 return;
7102 }
7103
7104 let text_layout_details = &self.text_layout_details(cx);
7105 let selection_count = self.selections.count();
7106 let first_selection = self.selections.first_anchor();
7107
7108 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7109 let line_mode = s.line_mode;
7110 s.move_with(|map, selection| {
7111 if !selection.is_empty() && !line_mode {
7112 selection.goal = SelectionGoal::None;
7113 }
7114 let (cursor, goal) = movement::up(
7115 map,
7116 selection.start,
7117 selection.goal,
7118 false,
7119 text_layout_details,
7120 );
7121 selection.collapse_to(cursor, goal);
7122 });
7123 });
7124
7125 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7126 {
7127 cx.propagate();
7128 }
7129 }
7130
7131 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7132 if self.take_rename(true, cx).is_some() {
7133 return;
7134 }
7135
7136 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7137 cx.propagate();
7138 return;
7139 }
7140
7141 let text_layout_details = &self.text_layout_details(cx);
7142
7143 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7144 let line_mode = s.line_mode;
7145 s.move_with(|map, selection| {
7146 if !selection.is_empty() && !line_mode {
7147 selection.goal = SelectionGoal::None;
7148 }
7149 let (cursor, goal) = movement::up_by_rows(
7150 map,
7151 selection.start,
7152 action.lines,
7153 selection.goal,
7154 false,
7155 text_layout_details,
7156 );
7157 selection.collapse_to(cursor, goal);
7158 });
7159 })
7160 }
7161
7162 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7163 if self.take_rename(true, cx).is_some() {
7164 return;
7165 }
7166
7167 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7168 cx.propagate();
7169 return;
7170 }
7171
7172 let text_layout_details = &self.text_layout_details(cx);
7173
7174 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7175 let line_mode = s.line_mode;
7176 s.move_with(|map, selection| {
7177 if !selection.is_empty() && !line_mode {
7178 selection.goal = SelectionGoal::None;
7179 }
7180 let (cursor, goal) = movement::down_by_rows(
7181 map,
7182 selection.start,
7183 action.lines,
7184 selection.goal,
7185 false,
7186 text_layout_details,
7187 );
7188 selection.collapse_to(cursor, goal);
7189 });
7190 })
7191 }
7192
7193 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7194 let text_layout_details = &self.text_layout_details(cx);
7195 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7196 s.move_heads_with(|map, head, goal| {
7197 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7198 })
7199 })
7200 }
7201
7202 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7203 let text_layout_details = &self.text_layout_details(cx);
7204 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7205 s.move_heads_with(|map, head, goal| {
7206 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7207 })
7208 })
7209 }
7210
7211 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7212 let Some(row_count) = self.visible_row_count() else {
7213 return;
7214 };
7215
7216 let text_layout_details = &self.text_layout_details(cx);
7217
7218 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7219 s.move_heads_with(|map, head, goal| {
7220 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7221 })
7222 })
7223 }
7224
7225 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7226 if self.take_rename(true, cx).is_some() {
7227 return;
7228 }
7229
7230 if self
7231 .context_menu
7232 .borrow_mut()
7233 .as_mut()
7234 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7235 .unwrap_or(false)
7236 {
7237 return;
7238 }
7239
7240 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7241 cx.propagate();
7242 return;
7243 }
7244
7245 let Some(row_count) = self.visible_row_count() else {
7246 return;
7247 };
7248
7249 let autoscroll = if action.center_cursor {
7250 Autoscroll::center()
7251 } else {
7252 Autoscroll::fit()
7253 };
7254
7255 let text_layout_details = &self.text_layout_details(cx);
7256
7257 self.change_selections(Some(autoscroll), cx, |s| {
7258 let line_mode = s.line_mode;
7259 s.move_with(|map, selection| {
7260 if !selection.is_empty() && !line_mode {
7261 selection.goal = SelectionGoal::None;
7262 }
7263 let (cursor, goal) = movement::up_by_rows(
7264 map,
7265 selection.end,
7266 row_count,
7267 selection.goal,
7268 false,
7269 text_layout_details,
7270 );
7271 selection.collapse_to(cursor, goal);
7272 });
7273 });
7274 }
7275
7276 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7277 let text_layout_details = &self.text_layout_details(cx);
7278 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7279 s.move_heads_with(|map, head, goal| {
7280 movement::up(map, head, goal, false, text_layout_details)
7281 })
7282 })
7283 }
7284
7285 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7286 self.take_rename(true, cx);
7287
7288 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7289 cx.propagate();
7290 return;
7291 }
7292
7293 let text_layout_details = &self.text_layout_details(cx);
7294 let selection_count = self.selections.count();
7295 let first_selection = self.selections.first_anchor();
7296
7297 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7298 let line_mode = s.line_mode;
7299 s.move_with(|map, selection| {
7300 if !selection.is_empty() && !line_mode {
7301 selection.goal = SelectionGoal::None;
7302 }
7303 let (cursor, goal) = movement::down(
7304 map,
7305 selection.end,
7306 selection.goal,
7307 false,
7308 text_layout_details,
7309 );
7310 selection.collapse_to(cursor, goal);
7311 });
7312 });
7313
7314 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7315 {
7316 cx.propagate();
7317 }
7318 }
7319
7320 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7321 let Some(row_count) = self.visible_row_count() else {
7322 return;
7323 };
7324
7325 let text_layout_details = &self.text_layout_details(cx);
7326
7327 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7328 s.move_heads_with(|map, head, goal| {
7329 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7330 })
7331 })
7332 }
7333
7334 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7335 if self.take_rename(true, cx).is_some() {
7336 return;
7337 }
7338
7339 if self
7340 .context_menu
7341 .borrow_mut()
7342 .as_mut()
7343 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7344 .unwrap_or(false)
7345 {
7346 return;
7347 }
7348
7349 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7350 cx.propagate();
7351 return;
7352 }
7353
7354 let Some(row_count) = self.visible_row_count() else {
7355 return;
7356 };
7357
7358 let autoscroll = if action.center_cursor {
7359 Autoscroll::center()
7360 } else {
7361 Autoscroll::fit()
7362 };
7363
7364 let text_layout_details = &self.text_layout_details(cx);
7365 self.change_selections(Some(autoscroll), cx, |s| {
7366 let line_mode = s.line_mode;
7367 s.move_with(|map, selection| {
7368 if !selection.is_empty() && !line_mode {
7369 selection.goal = SelectionGoal::None;
7370 }
7371 let (cursor, goal) = movement::down_by_rows(
7372 map,
7373 selection.end,
7374 row_count,
7375 selection.goal,
7376 false,
7377 text_layout_details,
7378 );
7379 selection.collapse_to(cursor, goal);
7380 });
7381 });
7382 }
7383
7384 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7385 let text_layout_details = &self.text_layout_details(cx);
7386 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7387 s.move_heads_with(|map, head, goal| {
7388 movement::down(map, head, goal, false, text_layout_details)
7389 })
7390 });
7391 }
7392
7393 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7394 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7395 context_menu.select_first(self.completion_provider.as_deref(), cx);
7396 }
7397 }
7398
7399 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7400 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7401 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7402 }
7403 }
7404
7405 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7406 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7407 context_menu.select_next(self.completion_provider.as_deref(), cx);
7408 }
7409 }
7410
7411 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7412 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7413 context_menu.select_last(self.completion_provider.as_deref(), cx);
7414 }
7415 }
7416
7417 pub fn move_to_previous_word_start(
7418 &mut self,
7419 _: &MoveToPreviousWordStart,
7420 cx: &mut ViewContext<Self>,
7421 ) {
7422 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7423 s.move_cursors_with(|map, head, _| {
7424 (
7425 movement::previous_word_start(map, head),
7426 SelectionGoal::None,
7427 )
7428 });
7429 })
7430 }
7431
7432 pub fn move_to_previous_subword_start(
7433 &mut self,
7434 _: &MoveToPreviousSubwordStart,
7435 cx: &mut ViewContext<Self>,
7436 ) {
7437 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7438 s.move_cursors_with(|map, head, _| {
7439 (
7440 movement::previous_subword_start(map, head),
7441 SelectionGoal::None,
7442 )
7443 });
7444 })
7445 }
7446
7447 pub fn select_to_previous_word_start(
7448 &mut self,
7449 _: &SelectToPreviousWordStart,
7450 cx: &mut ViewContext<Self>,
7451 ) {
7452 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7453 s.move_heads_with(|map, head, _| {
7454 (
7455 movement::previous_word_start(map, head),
7456 SelectionGoal::None,
7457 )
7458 });
7459 })
7460 }
7461
7462 pub fn select_to_previous_subword_start(
7463 &mut self,
7464 _: &SelectToPreviousSubwordStart,
7465 cx: &mut ViewContext<Self>,
7466 ) {
7467 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7468 s.move_heads_with(|map, head, _| {
7469 (
7470 movement::previous_subword_start(map, head),
7471 SelectionGoal::None,
7472 )
7473 });
7474 })
7475 }
7476
7477 pub fn delete_to_previous_word_start(
7478 &mut self,
7479 action: &DeleteToPreviousWordStart,
7480 cx: &mut ViewContext<Self>,
7481 ) {
7482 self.transact(cx, |this, cx| {
7483 this.select_autoclose_pair(cx);
7484 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7485 let line_mode = s.line_mode;
7486 s.move_with(|map, selection| {
7487 if selection.is_empty() && !line_mode {
7488 let cursor = if action.ignore_newlines {
7489 movement::previous_word_start(map, selection.head())
7490 } else {
7491 movement::previous_word_start_or_newline(map, selection.head())
7492 };
7493 selection.set_head(cursor, SelectionGoal::None);
7494 }
7495 });
7496 });
7497 this.insert("", cx);
7498 });
7499 }
7500
7501 pub fn delete_to_previous_subword_start(
7502 &mut self,
7503 _: &DeleteToPreviousSubwordStart,
7504 cx: &mut ViewContext<Self>,
7505 ) {
7506 self.transact(cx, |this, cx| {
7507 this.select_autoclose_pair(cx);
7508 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7509 let line_mode = s.line_mode;
7510 s.move_with(|map, selection| {
7511 if selection.is_empty() && !line_mode {
7512 let cursor = movement::previous_subword_start(map, selection.head());
7513 selection.set_head(cursor, SelectionGoal::None);
7514 }
7515 });
7516 });
7517 this.insert("", cx);
7518 });
7519 }
7520
7521 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7522 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7523 s.move_cursors_with(|map, head, _| {
7524 (movement::next_word_end(map, head), SelectionGoal::None)
7525 });
7526 })
7527 }
7528
7529 pub fn move_to_next_subword_end(
7530 &mut self,
7531 _: &MoveToNextSubwordEnd,
7532 cx: &mut ViewContext<Self>,
7533 ) {
7534 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7535 s.move_cursors_with(|map, head, _| {
7536 (movement::next_subword_end(map, head), SelectionGoal::None)
7537 });
7538 })
7539 }
7540
7541 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7542 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7543 s.move_heads_with(|map, head, _| {
7544 (movement::next_word_end(map, head), SelectionGoal::None)
7545 });
7546 })
7547 }
7548
7549 pub fn select_to_next_subword_end(
7550 &mut self,
7551 _: &SelectToNextSubwordEnd,
7552 cx: &mut ViewContext<Self>,
7553 ) {
7554 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7555 s.move_heads_with(|map, head, _| {
7556 (movement::next_subword_end(map, head), SelectionGoal::None)
7557 });
7558 })
7559 }
7560
7561 pub fn delete_to_next_word_end(
7562 &mut self,
7563 action: &DeleteToNextWordEnd,
7564 cx: &mut ViewContext<Self>,
7565 ) {
7566 self.transact(cx, |this, cx| {
7567 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7568 let line_mode = s.line_mode;
7569 s.move_with(|map, selection| {
7570 if selection.is_empty() && !line_mode {
7571 let cursor = if action.ignore_newlines {
7572 movement::next_word_end(map, selection.head())
7573 } else {
7574 movement::next_word_end_or_newline(map, selection.head())
7575 };
7576 selection.set_head(cursor, SelectionGoal::None);
7577 }
7578 });
7579 });
7580 this.insert("", cx);
7581 });
7582 }
7583
7584 pub fn delete_to_next_subword_end(
7585 &mut self,
7586 _: &DeleteToNextSubwordEnd,
7587 cx: &mut ViewContext<Self>,
7588 ) {
7589 self.transact(cx, |this, cx| {
7590 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7591 s.move_with(|map, selection| {
7592 if selection.is_empty() {
7593 let cursor = movement::next_subword_end(map, selection.head());
7594 selection.set_head(cursor, SelectionGoal::None);
7595 }
7596 });
7597 });
7598 this.insert("", cx);
7599 });
7600 }
7601
7602 pub fn move_to_beginning_of_line(
7603 &mut self,
7604 action: &MoveToBeginningOfLine,
7605 cx: &mut ViewContext<Self>,
7606 ) {
7607 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7608 s.move_cursors_with(|map, head, _| {
7609 (
7610 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7611 SelectionGoal::None,
7612 )
7613 });
7614 })
7615 }
7616
7617 pub fn select_to_beginning_of_line(
7618 &mut self,
7619 action: &SelectToBeginningOfLine,
7620 cx: &mut ViewContext<Self>,
7621 ) {
7622 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7623 s.move_heads_with(|map, head, _| {
7624 (
7625 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7626 SelectionGoal::None,
7627 )
7628 });
7629 });
7630 }
7631
7632 pub fn delete_to_beginning_of_line(
7633 &mut self,
7634 _: &DeleteToBeginningOfLine,
7635 cx: &mut ViewContext<Self>,
7636 ) {
7637 self.transact(cx, |this, cx| {
7638 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7639 s.move_with(|_, selection| {
7640 selection.reversed = true;
7641 });
7642 });
7643
7644 this.select_to_beginning_of_line(
7645 &SelectToBeginningOfLine {
7646 stop_at_soft_wraps: false,
7647 },
7648 cx,
7649 );
7650 this.backspace(&Backspace, cx);
7651 });
7652 }
7653
7654 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7655 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7656 s.move_cursors_with(|map, head, _| {
7657 (
7658 movement::line_end(map, head, action.stop_at_soft_wraps),
7659 SelectionGoal::None,
7660 )
7661 });
7662 })
7663 }
7664
7665 pub fn select_to_end_of_line(
7666 &mut self,
7667 action: &SelectToEndOfLine,
7668 cx: &mut ViewContext<Self>,
7669 ) {
7670 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7671 s.move_heads_with(|map, head, _| {
7672 (
7673 movement::line_end(map, head, action.stop_at_soft_wraps),
7674 SelectionGoal::None,
7675 )
7676 });
7677 })
7678 }
7679
7680 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7681 self.transact(cx, |this, cx| {
7682 this.select_to_end_of_line(
7683 &SelectToEndOfLine {
7684 stop_at_soft_wraps: false,
7685 },
7686 cx,
7687 );
7688 this.delete(&Delete, cx);
7689 });
7690 }
7691
7692 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7693 self.transact(cx, |this, cx| {
7694 this.select_to_end_of_line(
7695 &SelectToEndOfLine {
7696 stop_at_soft_wraps: false,
7697 },
7698 cx,
7699 );
7700 this.cut(&Cut, cx);
7701 });
7702 }
7703
7704 pub fn move_to_start_of_paragraph(
7705 &mut self,
7706 _: &MoveToStartOfParagraph,
7707 cx: &mut ViewContext<Self>,
7708 ) {
7709 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7710 cx.propagate();
7711 return;
7712 }
7713
7714 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7715 s.move_with(|map, selection| {
7716 selection.collapse_to(
7717 movement::start_of_paragraph(map, selection.head(), 1),
7718 SelectionGoal::None,
7719 )
7720 });
7721 })
7722 }
7723
7724 pub fn move_to_end_of_paragraph(
7725 &mut self,
7726 _: &MoveToEndOfParagraph,
7727 cx: &mut ViewContext<Self>,
7728 ) {
7729 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7730 cx.propagate();
7731 return;
7732 }
7733
7734 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7735 s.move_with(|map, selection| {
7736 selection.collapse_to(
7737 movement::end_of_paragraph(map, selection.head(), 1),
7738 SelectionGoal::None,
7739 )
7740 });
7741 })
7742 }
7743
7744 pub fn select_to_start_of_paragraph(
7745 &mut self,
7746 _: &SelectToStartOfParagraph,
7747 cx: &mut ViewContext<Self>,
7748 ) {
7749 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7750 cx.propagate();
7751 return;
7752 }
7753
7754 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7755 s.move_heads_with(|map, head, _| {
7756 (
7757 movement::start_of_paragraph(map, head, 1),
7758 SelectionGoal::None,
7759 )
7760 });
7761 })
7762 }
7763
7764 pub fn select_to_end_of_paragraph(
7765 &mut self,
7766 _: &SelectToEndOfParagraph,
7767 cx: &mut ViewContext<Self>,
7768 ) {
7769 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7770 cx.propagate();
7771 return;
7772 }
7773
7774 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7775 s.move_heads_with(|map, head, _| {
7776 (
7777 movement::end_of_paragraph(map, head, 1),
7778 SelectionGoal::None,
7779 )
7780 });
7781 })
7782 }
7783
7784 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7785 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7786 cx.propagate();
7787 return;
7788 }
7789
7790 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7791 s.select_ranges(vec![0..0]);
7792 });
7793 }
7794
7795 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7796 let mut selection = self.selections.last::<Point>(cx);
7797 selection.set_head(Point::zero(), SelectionGoal::None);
7798
7799 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7800 s.select(vec![selection]);
7801 });
7802 }
7803
7804 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7805 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7806 cx.propagate();
7807 return;
7808 }
7809
7810 let cursor = self.buffer.read(cx).read(cx).len();
7811 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7812 s.select_ranges(vec![cursor..cursor])
7813 });
7814 }
7815
7816 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7817 self.nav_history = nav_history;
7818 }
7819
7820 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7821 self.nav_history.as_ref()
7822 }
7823
7824 fn push_to_nav_history(
7825 &mut self,
7826 cursor_anchor: Anchor,
7827 new_position: Option<Point>,
7828 cx: &mut ViewContext<Self>,
7829 ) {
7830 if let Some(nav_history) = self.nav_history.as_mut() {
7831 let buffer = self.buffer.read(cx).read(cx);
7832 let cursor_position = cursor_anchor.to_point(&buffer);
7833 let scroll_state = self.scroll_manager.anchor();
7834 let scroll_top_row = scroll_state.top_row(&buffer);
7835 drop(buffer);
7836
7837 if let Some(new_position) = new_position {
7838 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7839 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7840 return;
7841 }
7842 }
7843
7844 nav_history.push(
7845 Some(NavigationData {
7846 cursor_anchor,
7847 cursor_position,
7848 scroll_anchor: scroll_state,
7849 scroll_top_row,
7850 }),
7851 cx,
7852 );
7853 }
7854 }
7855
7856 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7857 let buffer = self.buffer.read(cx).snapshot(cx);
7858 let mut selection = self.selections.first::<usize>(cx);
7859 selection.set_head(buffer.len(), SelectionGoal::None);
7860 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7861 s.select(vec![selection]);
7862 });
7863 }
7864
7865 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7866 let end = self.buffer.read(cx).read(cx).len();
7867 self.change_selections(None, cx, |s| {
7868 s.select_ranges(vec![0..end]);
7869 });
7870 }
7871
7872 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7873 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7874 let mut selections = self.selections.all::<Point>(cx);
7875 let max_point = display_map.buffer_snapshot.max_point();
7876 for selection in &mut selections {
7877 let rows = selection.spanned_rows(true, &display_map);
7878 selection.start = Point::new(rows.start.0, 0);
7879 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7880 selection.reversed = false;
7881 }
7882 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7883 s.select(selections);
7884 });
7885 }
7886
7887 pub fn split_selection_into_lines(
7888 &mut self,
7889 _: &SplitSelectionIntoLines,
7890 cx: &mut ViewContext<Self>,
7891 ) {
7892 let mut to_unfold = Vec::new();
7893 let mut new_selection_ranges = Vec::new();
7894 {
7895 let selections = self.selections.all::<Point>(cx);
7896 let buffer = self.buffer.read(cx).read(cx);
7897 for selection in selections {
7898 for row in selection.start.row..selection.end.row {
7899 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7900 new_selection_ranges.push(cursor..cursor);
7901 }
7902 new_selection_ranges.push(selection.end..selection.end);
7903 to_unfold.push(selection.start..selection.end);
7904 }
7905 }
7906 self.unfold_ranges(&to_unfold, true, true, cx);
7907 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7908 s.select_ranges(new_selection_ranges);
7909 });
7910 }
7911
7912 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7913 self.add_selection(true, cx);
7914 }
7915
7916 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7917 self.add_selection(false, cx);
7918 }
7919
7920 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7921 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7922 let mut selections = self.selections.all::<Point>(cx);
7923 let text_layout_details = self.text_layout_details(cx);
7924 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7925 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7926 let range = oldest_selection.display_range(&display_map).sorted();
7927
7928 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7929 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7930 let positions = start_x.min(end_x)..start_x.max(end_x);
7931
7932 selections.clear();
7933 let mut stack = Vec::new();
7934 for row in range.start.row().0..=range.end.row().0 {
7935 if let Some(selection) = self.selections.build_columnar_selection(
7936 &display_map,
7937 DisplayRow(row),
7938 &positions,
7939 oldest_selection.reversed,
7940 &text_layout_details,
7941 ) {
7942 stack.push(selection.id);
7943 selections.push(selection);
7944 }
7945 }
7946
7947 if above {
7948 stack.reverse();
7949 }
7950
7951 AddSelectionsState { above, stack }
7952 });
7953
7954 let last_added_selection = *state.stack.last().unwrap();
7955 let mut new_selections = Vec::new();
7956 if above == state.above {
7957 let end_row = if above {
7958 DisplayRow(0)
7959 } else {
7960 display_map.max_point().row()
7961 };
7962
7963 'outer: for selection in selections {
7964 if selection.id == last_added_selection {
7965 let range = selection.display_range(&display_map).sorted();
7966 debug_assert_eq!(range.start.row(), range.end.row());
7967 let mut row = range.start.row();
7968 let positions =
7969 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7970 px(start)..px(end)
7971 } else {
7972 let start_x =
7973 display_map.x_for_display_point(range.start, &text_layout_details);
7974 let end_x =
7975 display_map.x_for_display_point(range.end, &text_layout_details);
7976 start_x.min(end_x)..start_x.max(end_x)
7977 };
7978
7979 while row != end_row {
7980 if above {
7981 row.0 -= 1;
7982 } else {
7983 row.0 += 1;
7984 }
7985
7986 if let Some(new_selection) = self.selections.build_columnar_selection(
7987 &display_map,
7988 row,
7989 &positions,
7990 selection.reversed,
7991 &text_layout_details,
7992 ) {
7993 state.stack.push(new_selection.id);
7994 if above {
7995 new_selections.push(new_selection);
7996 new_selections.push(selection);
7997 } else {
7998 new_selections.push(selection);
7999 new_selections.push(new_selection);
8000 }
8001
8002 continue 'outer;
8003 }
8004 }
8005 }
8006
8007 new_selections.push(selection);
8008 }
8009 } else {
8010 new_selections = selections;
8011 new_selections.retain(|s| s.id != last_added_selection);
8012 state.stack.pop();
8013 }
8014
8015 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8016 s.select(new_selections);
8017 });
8018 if state.stack.len() > 1 {
8019 self.add_selections_state = Some(state);
8020 }
8021 }
8022
8023 pub fn select_next_match_internal(
8024 &mut self,
8025 display_map: &DisplaySnapshot,
8026 replace_newest: bool,
8027 autoscroll: Option<Autoscroll>,
8028 cx: &mut ViewContext<Self>,
8029 ) -> Result<()> {
8030 fn select_next_match_ranges(
8031 this: &mut Editor,
8032 range: Range<usize>,
8033 replace_newest: bool,
8034 auto_scroll: Option<Autoscroll>,
8035 cx: &mut ViewContext<Editor>,
8036 ) {
8037 this.unfold_ranges(&[range.clone()], false, true, cx);
8038 this.change_selections(auto_scroll, cx, |s| {
8039 if replace_newest {
8040 s.delete(s.newest_anchor().id);
8041 }
8042 s.insert_range(range.clone());
8043 });
8044 }
8045
8046 let buffer = &display_map.buffer_snapshot;
8047 let mut selections = self.selections.all::<usize>(cx);
8048 if let Some(mut select_next_state) = self.select_next_state.take() {
8049 let query = &select_next_state.query;
8050 if !select_next_state.done {
8051 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8052 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8053 let mut next_selected_range = None;
8054
8055 let bytes_after_last_selection =
8056 buffer.bytes_in_range(last_selection.end..buffer.len());
8057 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8058 let query_matches = query
8059 .stream_find_iter(bytes_after_last_selection)
8060 .map(|result| (last_selection.end, result))
8061 .chain(
8062 query
8063 .stream_find_iter(bytes_before_first_selection)
8064 .map(|result| (0, result)),
8065 );
8066
8067 for (start_offset, query_match) in query_matches {
8068 let query_match = query_match.unwrap(); // can only fail due to I/O
8069 let offset_range =
8070 start_offset + query_match.start()..start_offset + query_match.end();
8071 let display_range = offset_range.start.to_display_point(display_map)
8072 ..offset_range.end.to_display_point(display_map);
8073
8074 if !select_next_state.wordwise
8075 || (!movement::is_inside_word(display_map, display_range.start)
8076 && !movement::is_inside_word(display_map, display_range.end))
8077 {
8078 // TODO: This is n^2, because we might check all the selections
8079 if !selections
8080 .iter()
8081 .any(|selection| selection.range().overlaps(&offset_range))
8082 {
8083 next_selected_range = Some(offset_range);
8084 break;
8085 }
8086 }
8087 }
8088
8089 if let Some(next_selected_range) = next_selected_range {
8090 select_next_match_ranges(
8091 self,
8092 next_selected_range,
8093 replace_newest,
8094 autoscroll,
8095 cx,
8096 );
8097 } else {
8098 select_next_state.done = true;
8099 }
8100 }
8101
8102 self.select_next_state = Some(select_next_state);
8103 } else {
8104 let mut only_carets = true;
8105 let mut same_text_selected = true;
8106 let mut selected_text = None;
8107
8108 let mut selections_iter = selections.iter().peekable();
8109 while let Some(selection) = selections_iter.next() {
8110 if selection.start != selection.end {
8111 only_carets = false;
8112 }
8113
8114 if same_text_selected {
8115 if selected_text.is_none() {
8116 selected_text =
8117 Some(buffer.text_for_range(selection.range()).collect::<String>());
8118 }
8119
8120 if let Some(next_selection) = selections_iter.peek() {
8121 if next_selection.range().len() == selection.range().len() {
8122 let next_selected_text = buffer
8123 .text_for_range(next_selection.range())
8124 .collect::<String>();
8125 if Some(next_selected_text) != selected_text {
8126 same_text_selected = false;
8127 selected_text = None;
8128 }
8129 } else {
8130 same_text_selected = false;
8131 selected_text = None;
8132 }
8133 }
8134 }
8135 }
8136
8137 if only_carets {
8138 for selection in &mut selections {
8139 let word_range = movement::surrounding_word(
8140 display_map,
8141 selection.start.to_display_point(display_map),
8142 );
8143 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8144 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8145 selection.goal = SelectionGoal::None;
8146 selection.reversed = false;
8147 select_next_match_ranges(
8148 self,
8149 selection.start..selection.end,
8150 replace_newest,
8151 autoscroll,
8152 cx,
8153 );
8154 }
8155
8156 if selections.len() == 1 {
8157 let selection = selections
8158 .last()
8159 .expect("ensured that there's only one selection");
8160 let query = buffer
8161 .text_for_range(selection.start..selection.end)
8162 .collect::<String>();
8163 let is_empty = query.is_empty();
8164 let select_state = SelectNextState {
8165 query: AhoCorasick::new(&[query])?,
8166 wordwise: true,
8167 done: is_empty,
8168 };
8169 self.select_next_state = Some(select_state);
8170 } else {
8171 self.select_next_state = None;
8172 }
8173 } else if let Some(selected_text) = selected_text {
8174 self.select_next_state = Some(SelectNextState {
8175 query: AhoCorasick::new(&[selected_text])?,
8176 wordwise: false,
8177 done: false,
8178 });
8179 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8180 }
8181 }
8182 Ok(())
8183 }
8184
8185 pub fn select_all_matches(
8186 &mut self,
8187 _action: &SelectAllMatches,
8188 cx: &mut ViewContext<Self>,
8189 ) -> Result<()> {
8190 self.push_to_selection_history();
8191 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8192
8193 self.select_next_match_internal(&display_map, false, None, cx)?;
8194 let Some(select_next_state) = self.select_next_state.as_mut() else {
8195 return Ok(());
8196 };
8197 if select_next_state.done {
8198 return Ok(());
8199 }
8200
8201 let mut new_selections = self.selections.all::<usize>(cx);
8202
8203 let buffer = &display_map.buffer_snapshot;
8204 let query_matches = select_next_state
8205 .query
8206 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8207
8208 for query_match in query_matches {
8209 let query_match = query_match.unwrap(); // can only fail due to I/O
8210 let offset_range = query_match.start()..query_match.end();
8211 let display_range = offset_range.start.to_display_point(&display_map)
8212 ..offset_range.end.to_display_point(&display_map);
8213
8214 if !select_next_state.wordwise
8215 || (!movement::is_inside_word(&display_map, display_range.start)
8216 && !movement::is_inside_word(&display_map, display_range.end))
8217 {
8218 self.selections.change_with(cx, |selections| {
8219 new_selections.push(Selection {
8220 id: selections.new_selection_id(),
8221 start: offset_range.start,
8222 end: offset_range.end,
8223 reversed: false,
8224 goal: SelectionGoal::None,
8225 });
8226 });
8227 }
8228 }
8229
8230 new_selections.sort_by_key(|selection| selection.start);
8231 let mut ix = 0;
8232 while ix + 1 < new_selections.len() {
8233 let current_selection = &new_selections[ix];
8234 let next_selection = &new_selections[ix + 1];
8235 if current_selection.range().overlaps(&next_selection.range()) {
8236 if current_selection.id < next_selection.id {
8237 new_selections.remove(ix + 1);
8238 } else {
8239 new_selections.remove(ix);
8240 }
8241 } else {
8242 ix += 1;
8243 }
8244 }
8245
8246 select_next_state.done = true;
8247 self.unfold_ranges(
8248 &new_selections
8249 .iter()
8250 .map(|selection| selection.range())
8251 .collect::<Vec<_>>(),
8252 false,
8253 false,
8254 cx,
8255 );
8256 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8257 selections.select(new_selections)
8258 });
8259
8260 Ok(())
8261 }
8262
8263 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8264 self.push_to_selection_history();
8265 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8266 self.select_next_match_internal(
8267 &display_map,
8268 action.replace_newest,
8269 Some(Autoscroll::newest()),
8270 cx,
8271 )?;
8272 Ok(())
8273 }
8274
8275 pub fn select_previous(
8276 &mut self,
8277 action: &SelectPrevious,
8278 cx: &mut ViewContext<Self>,
8279 ) -> Result<()> {
8280 self.push_to_selection_history();
8281 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8282 let buffer = &display_map.buffer_snapshot;
8283 let mut selections = self.selections.all::<usize>(cx);
8284 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8285 let query = &select_prev_state.query;
8286 if !select_prev_state.done {
8287 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8288 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8289 let mut next_selected_range = None;
8290 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8291 let bytes_before_last_selection =
8292 buffer.reversed_bytes_in_range(0..last_selection.start);
8293 let bytes_after_first_selection =
8294 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8295 let query_matches = query
8296 .stream_find_iter(bytes_before_last_selection)
8297 .map(|result| (last_selection.start, result))
8298 .chain(
8299 query
8300 .stream_find_iter(bytes_after_first_selection)
8301 .map(|result| (buffer.len(), result)),
8302 );
8303 for (end_offset, query_match) in query_matches {
8304 let query_match = query_match.unwrap(); // can only fail due to I/O
8305 let offset_range =
8306 end_offset - query_match.end()..end_offset - query_match.start();
8307 let display_range = offset_range.start.to_display_point(&display_map)
8308 ..offset_range.end.to_display_point(&display_map);
8309
8310 if !select_prev_state.wordwise
8311 || (!movement::is_inside_word(&display_map, display_range.start)
8312 && !movement::is_inside_word(&display_map, display_range.end))
8313 {
8314 next_selected_range = Some(offset_range);
8315 break;
8316 }
8317 }
8318
8319 if let Some(next_selected_range) = next_selected_range {
8320 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8321 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8322 if action.replace_newest {
8323 s.delete(s.newest_anchor().id);
8324 }
8325 s.insert_range(next_selected_range);
8326 });
8327 } else {
8328 select_prev_state.done = true;
8329 }
8330 }
8331
8332 self.select_prev_state = Some(select_prev_state);
8333 } else {
8334 let mut only_carets = true;
8335 let mut same_text_selected = true;
8336 let mut selected_text = None;
8337
8338 let mut selections_iter = selections.iter().peekable();
8339 while let Some(selection) = selections_iter.next() {
8340 if selection.start != selection.end {
8341 only_carets = false;
8342 }
8343
8344 if same_text_selected {
8345 if selected_text.is_none() {
8346 selected_text =
8347 Some(buffer.text_for_range(selection.range()).collect::<String>());
8348 }
8349
8350 if let Some(next_selection) = selections_iter.peek() {
8351 if next_selection.range().len() == selection.range().len() {
8352 let next_selected_text = buffer
8353 .text_for_range(next_selection.range())
8354 .collect::<String>();
8355 if Some(next_selected_text) != selected_text {
8356 same_text_selected = false;
8357 selected_text = None;
8358 }
8359 } else {
8360 same_text_selected = false;
8361 selected_text = None;
8362 }
8363 }
8364 }
8365 }
8366
8367 if only_carets {
8368 for selection in &mut selections {
8369 let word_range = movement::surrounding_word(
8370 &display_map,
8371 selection.start.to_display_point(&display_map),
8372 );
8373 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8374 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8375 selection.goal = SelectionGoal::None;
8376 selection.reversed = false;
8377 }
8378 if selections.len() == 1 {
8379 let selection = selections
8380 .last()
8381 .expect("ensured that there's only one selection");
8382 let query = buffer
8383 .text_for_range(selection.start..selection.end)
8384 .collect::<String>();
8385 let is_empty = query.is_empty();
8386 let select_state = SelectNextState {
8387 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8388 wordwise: true,
8389 done: is_empty,
8390 };
8391 self.select_prev_state = Some(select_state);
8392 } else {
8393 self.select_prev_state = None;
8394 }
8395
8396 self.unfold_ranges(
8397 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8398 false,
8399 true,
8400 cx,
8401 );
8402 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8403 s.select(selections);
8404 });
8405 } else if let Some(selected_text) = selected_text {
8406 self.select_prev_state = Some(SelectNextState {
8407 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8408 wordwise: false,
8409 done: false,
8410 });
8411 self.select_previous(action, cx)?;
8412 }
8413 }
8414 Ok(())
8415 }
8416
8417 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8418 if self.read_only(cx) {
8419 return;
8420 }
8421 let text_layout_details = &self.text_layout_details(cx);
8422 self.transact(cx, |this, cx| {
8423 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8424 let mut edits = Vec::new();
8425 let mut selection_edit_ranges = Vec::new();
8426 let mut last_toggled_row = None;
8427 let snapshot = this.buffer.read(cx).read(cx);
8428 let empty_str: Arc<str> = Arc::default();
8429 let mut suffixes_inserted = Vec::new();
8430 let ignore_indent = action.ignore_indent;
8431
8432 fn comment_prefix_range(
8433 snapshot: &MultiBufferSnapshot,
8434 row: MultiBufferRow,
8435 comment_prefix: &str,
8436 comment_prefix_whitespace: &str,
8437 ignore_indent: bool,
8438 ) -> Range<Point> {
8439 let indent_size = if ignore_indent {
8440 0
8441 } else {
8442 snapshot.indent_size_for_line(row).len
8443 };
8444
8445 let start = Point::new(row.0, indent_size);
8446
8447 let mut line_bytes = snapshot
8448 .bytes_in_range(start..snapshot.max_point())
8449 .flatten()
8450 .copied();
8451
8452 // If this line currently begins with the line comment prefix, then record
8453 // the range containing the prefix.
8454 if line_bytes
8455 .by_ref()
8456 .take(comment_prefix.len())
8457 .eq(comment_prefix.bytes())
8458 {
8459 // Include any whitespace that matches the comment prefix.
8460 let matching_whitespace_len = line_bytes
8461 .zip(comment_prefix_whitespace.bytes())
8462 .take_while(|(a, b)| a == b)
8463 .count() as u32;
8464 let end = Point::new(
8465 start.row,
8466 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8467 );
8468 start..end
8469 } else {
8470 start..start
8471 }
8472 }
8473
8474 fn comment_suffix_range(
8475 snapshot: &MultiBufferSnapshot,
8476 row: MultiBufferRow,
8477 comment_suffix: &str,
8478 comment_suffix_has_leading_space: bool,
8479 ) -> Range<Point> {
8480 let end = Point::new(row.0, snapshot.line_len(row));
8481 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8482
8483 let mut line_end_bytes = snapshot
8484 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8485 .flatten()
8486 .copied();
8487
8488 let leading_space_len = if suffix_start_column > 0
8489 && line_end_bytes.next() == Some(b' ')
8490 && comment_suffix_has_leading_space
8491 {
8492 1
8493 } else {
8494 0
8495 };
8496
8497 // If this line currently begins with the line comment prefix, then record
8498 // the range containing the prefix.
8499 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8500 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8501 start..end
8502 } else {
8503 end..end
8504 }
8505 }
8506
8507 // TODO: Handle selections that cross excerpts
8508 for selection in &mut selections {
8509 let start_column = snapshot
8510 .indent_size_for_line(MultiBufferRow(selection.start.row))
8511 .len;
8512 let language = if let Some(language) =
8513 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8514 {
8515 language
8516 } else {
8517 continue;
8518 };
8519
8520 selection_edit_ranges.clear();
8521
8522 // If multiple selections contain a given row, avoid processing that
8523 // row more than once.
8524 let mut start_row = MultiBufferRow(selection.start.row);
8525 if last_toggled_row == Some(start_row) {
8526 start_row = start_row.next_row();
8527 }
8528 let end_row =
8529 if selection.end.row > selection.start.row && selection.end.column == 0 {
8530 MultiBufferRow(selection.end.row - 1)
8531 } else {
8532 MultiBufferRow(selection.end.row)
8533 };
8534 last_toggled_row = Some(end_row);
8535
8536 if start_row > end_row {
8537 continue;
8538 }
8539
8540 // If the language has line comments, toggle those.
8541 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8542
8543 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8544 if ignore_indent {
8545 full_comment_prefixes = full_comment_prefixes
8546 .into_iter()
8547 .map(|s| Arc::from(s.trim_end()))
8548 .collect();
8549 }
8550
8551 if !full_comment_prefixes.is_empty() {
8552 let first_prefix = full_comment_prefixes
8553 .first()
8554 .expect("prefixes is non-empty");
8555 let prefix_trimmed_lengths = full_comment_prefixes
8556 .iter()
8557 .map(|p| p.trim_end_matches(' ').len())
8558 .collect::<SmallVec<[usize; 4]>>();
8559
8560 let mut all_selection_lines_are_comments = true;
8561
8562 for row in start_row.0..=end_row.0 {
8563 let row = MultiBufferRow(row);
8564 if start_row < end_row && snapshot.is_line_blank(row) {
8565 continue;
8566 }
8567
8568 let prefix_range = full_comment_prefixes
8569 .iter()
8570 .zip(prefix_trimmed_lengths.iter().copied())
8571 .map(|(prefix, trimmed_prefix_len)| {
8572 comment_prefix_range(
8573 snapshot.deref(),
8574 row,
8575 &prefix[..trimmed_prefix_len],
8576 &prefix[trimmed_prefix_len..],
8577 ignore_indent,
8578 )
8579 })
8580 .max_by_key(|range| range.end.column - range.start.column)
8581 .expect("prefixes is non-empty");
8582
8583 if prefix_range.is_empty() {
8584 all_selection_lines_are_comments = false;
8585 }
8586
8587 selection_edit_ranges.push(prefix_range);
8588 }
8589
8590 if all_selection_lines_are_comments {
8591 edits.extend(
8592 selection_edit_ranges
8593 .iter()
8594 .cloned()
8595 .map(|range| (range, empty_str.clone())),
8596 );
8597 } else {
8598 let min_column = selection_edit_ranges
8599 .iter()
8600 .map(|range| range.start.column)
8601 .min()
8602 .unwrap_or(0);
8603 edits.extend(selection_edit_ranges.iter().map(|range| {
8604 let position = Point::new(range.start.row, min_column);
8605 (position..position, first_prefix.clone())
8606 }));
8607 }
8608 } else if let Some((full_comment_prefix, comment_suffix)) =
8609 language.block_comment_delimiters()
8610 {
8611 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8612 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8613 let prefix_range = comment_prefix_range(
8614 snapshot.deref(),
8615 start_row,
8616 comment_prefix,
8617 comment_prefix_whitespace,
8618 ignore_indent,
8619 );
8620 let suffix_range = comment_suffix_range(
8621 snapshot.deref(),
8622 end_row,
8623 comment_suffix.trim_start_matches(' '),
8624 comment_suffix.starts_with(' '),
8625 );
8626
8627 if prefix_range.is_empty() || suffix_range.is_empty() {
8628 edits.push((
8629 prefix_range.start..prefix_range.start,
8630 full_comment_prefix.clone(),
8631 ));
8632 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8633 suffixes_inserted.push((end_row, comment_suffix.len()));
8634 } else {
8635 edits.push((prefix_range, empty_str.clone()));
8636 edits.push((suffix_range, empty_str.clone()));
8637 }
8638 } else {
8639 continue;
8640 }
8641 }
8642
8643 drop(snapshot);
8644 this.buffer.update(cx, |buffer, cx| {
8645 buffer.edit(edits, None, cx);
8646 });
8647
8648 // Adjust selections so that they end before any comment suffixes that
8649 // were inserted.
8650 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8651 let mut selections = this.selections.all::<Point>(cx);
8652 let snapshot = this.buffer.read(cx).read(cx);
8653 for selection in &mut selections {
8654 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8655 match row.cmp(&MultiBufferRow(selection.end.row)) {
8656 Ordering::Less => {
8657 suffixes_inserted.next();
8658 continue;
8659 }
8660 Ordering::Greater => break,
8661 Ordering::Equal => {
8662 if selection.end.column == snapshot.line_len(row) {
8663 if selection.is_empty() {
8664 selection.start.column -= suffix_len as u32;
8665 }
8666 selection.end.column -= suffix_len as u32;
8667 }
8668 break;
8669 }
8670 }
8671 }
8672 }
8673
8674 drop(snapshot);
8675 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8676
8677 let selections = this.selections.all::<Point>(cx);
8678 let selections_on_single_row = selections.windows(2).all(|selections| {
8679 selections[0].start.row == selections[1].start.row
8680 && selections[0].end.row == selections[1].end.row
8681 && selections[0].start.row == selections[0].end.row
8682 });
8683 let selections_selecting = selections
8684 .iter()
8685 .any(|selection| selection.start != selection.end);
8686 let advance_downwards = action.advance_downwards
8687 && selections_on_single_row
8688 && !selections_selecting
8689 && !matches!(this.mode, EditorMode::SingleLine { .. });
8690
8691 if advance_downwards {
8692 let snapshot = this.buffer.read(cx).snapshot(cx);
8693
8694 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8695 s.move_cursors_with(|display_snapshot, display_point, _| {
8696 let mut point = display_point.to_point(display_snapshot);
8697 point.row += 1;
8698 point = snapshot.clip_point(point, Bias::Left);
8699 let display_point = point.to_display_point(display_snapshot);
8700 let goal = SelectionGoal::HorizontalPosition(
8701 display_snapshot
8702 .x_for_display_point(display_point, text_layout_details)
8703 .into(),
8704 );
8705 (display_point, goal)
8706 })
8707 });
8708 }
8709 });
8710 }
8711
8712 pub fn select_enclosing_symbol(
8713 &mut self,
8714 _: &SelectEnclosingSymbol,
8715 cx: &mut ViewContext<Self>,
8716 ) {
8717 let buffer = self.buffer.read(cx).snapshot(cx);
8718 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8719
8720 fn update_selection(
8721 selection: &Selection<usize>,
8722 buffer_snap: &MultiBufferSnapshot,
8723 ) -> Option<Selection<usize>> {
8724 let cursor = selection.head();
8725 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8726 for symbol in symbols.iter().rev() {
8727 let start = symbol.range.start.to_offset(buffer_snap);
8728 let end = symbol.range.end.to_offset(buffer_snap);
8729 let new_range = start..end;
8730 if start < selection.start || end > selection.end {
8731 return Some(Selection {
8732 id: selection.id,
8733 start: new_range.start,
8734 end: new_range.end,
8735 goal: SelectionGoal::None,
8736 reversed: selection.reversed,
8737 });
8738 }
8739 }
8740 None
8741 }
8742
8743 let mut selected_larger_symbol = false;
8744 let new_selections = old_selections
8745 .iter()
8746 .map(|selection| match update_selection(selection, &buffer) {
8747 Some(new_selection) => {
8748 if new_selection.range() != selection.range() {
8749 selected_larger_symbol = true;
8750 }
8751 new_selection
8752 }
8753 None => selection.clone(),
8754 })
8755 .collect::<Vec<_>>();
8756
8757 if selected_larger_symbol {
8758 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8759 s.select(new_selections);
8760 });
8761 }
8762 }
8763
8764 pub fn select_larger_syntax_node(
8765 &mut self,
8766 _: &SelectLargerSyntaxNode,
8767 cx: &mut ViewContext<Self>,
8768 ) {
8769 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8770 let buffer = self.buffer.read(cx).snapshot(cx);
8771 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8772
8773 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8774 let mut selected_larger_node = false;
8775 let new_selections = old_selections
8776 .iter()
8777 .map(|selection| {
8778 let old_range = selection.start..selection.end;
8779 let mut new_range = old_range.clone();
8780 let mut new_node = None;
8781 while let Some((node, containing_range)) = buffer.syntax_ancestor(new_range.clone())
8782 {
8783 new_node = Some(node);
8784 new_range = containing_range;
8785 if !display_map.intersects_fold(new_range.start)
8786 && !display_map.intersects_fold(new_range.end)
8787 {
8788 break;
8789 }
8790 }
8791
8792 if let Some(node) = new_node {
8793 // Log the ancestor, to support using this action as a way to explore TreeSitter
8794 // nodes. Parent and grandparent are also logged because this operation will not
8795 // visit nodes that have the same range as their parent.
8796 log::info!("Node: {node:?}");
8797 let parent = node.parent();
8798 log::info!("Parent: {parent:?}");
8799 let grandparent = parent.and_then(|x| x.parent());
8800 log::info!("Grandparent: {grandparent:?}");
8801 }
8802
8803 selected_larger_node |= new_range != old_range;
8804 Selection {
8805 id: selection.id,
8806 start: new_range.start,
8807 end: new_range.end,
8808 goal: SelectionGoal::None,
8809 reversed: selection.reversed,
8810 }
8811 })
8812 .collect::<Vec<_>>();
8813
8814 if selected_larger_node {
8815 stack.push(old_selections);
8816 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8817 s.select(new_selections);
8818 });
8819 }
8820 self.select_larger_syntax_node_stack = stack;
8821 }
8822
8823 pub fn select_smaller_syntax_node(
8824 &mut self,
8825 _: &SelectSmallerSyntaxNode,
8826 cx: &mut ViewContext<Self>,
8827 ) {
8828 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8829 if let Some(selections) = stack.pop() {
8830 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8831 s.select(selections.to_vec());
8832 });
8833 }
8834 self.select_larger_syntax_node_stack = stack;
8835 }
8836
8837 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8838 if !EditorSettings::get_global(cx).gutter.runnables {
8839 self.clear_tasks();
8840 return Task::ready(());
8841 }
8842 let project = self.project.as_ref().map(Model::downgrade);
8843 cx.spawn(|this, mut cx| async move {
8844 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
8845 let Some(project) = project.and_then(|p| p.upgrade()) else {
8846 return;
8847 };
8848 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8849 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8850 }) else {
8851 return;
8852 };
8853
8854 let hide_runnables = project
8855 .update(&mut cx, |project, cx| {
8856 // Do not display any test indicators in non-dev server remote projects.
8857 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8858 })
8859 .unwrap_or(true);
8860 if hide_runnables {
8861 return;
8862 }
8863 let new_rows =
8864 cx.background_executor()
8865 .spawn({
8866 let snapshot = display_snapshot.clone();
8867 async move {
8868 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8869 }
8870 })
8871 .await;
8872 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8873
8874 this.update(&mut cx, |this, _| {
8875 this.clear_tasks();
8876 for (key, value) in rows {
8877 this.insert_tasks(key, value);
8878 }
8879 })
8880 .ok();
8881 })
8882 }
8883 fn fetch_runnable_ranges(
8884 snapshot: &DisplaySnapshot,
8885 range: Range<Anchor>,
8886 ) -> Vec<language::RunnableRange> {
8887 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8888 }
8889
8890 fn runnable_rows(
8891 project: Model<Project>,
8892 snapshot: DisplaySnapshot,
8893 runnable_ranges: Vec<RunnableRange>,
8894 mut cx: AsyncWindowContext,
8895 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8896 runnable_ranges
8897 .into_iter()
8898 .filter_map(|mut runnable| {
8899 let tasks = cx
8900 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8901 .ok()?;
8902 if tasks.is_empty() {
8903 return None;
8904 }
8905
8906 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8907
8908 let row = snapshot
8909 .buffer_snapshot
8910 .buffer_line_for_row(MultiBufferRow(point.row))?
8911 .1
8912 .start
8913 .row;
8914
8915 let context_range =
8916 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8917 Some((
8918 (runnable.buffer_id, row),
8919 RunnableTasks {
8920 templates: tasks,
8921 offset: MultiBufferOffset(runnable.run_range.start),
8922 context_range,
8923 column: point.column,
8924 extra_variables: runnable.extra_captures,
8925 },
8926 ))
8927 })
8928 .collect()
8929 }
8930
8931 fn templates_with_tags(
8932 project: &Model<Project>,
8933 runnable: &mut Runnable,
8934 cx: &WindowContext<'_>,
8935 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8936 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8937 let (worktree_id, file) = project
8938 .buffer_for_id(runnable.buffer, cx)
8939 .and_then(|buffer| buffer.read(cx).file())
8940 .map(|file| (file.worktree_id(cx), file.clone()))
8941 .unzip();
8942
8943 (
8944 project.task_store().read(cx).task_inventory().cloned(),
8945 worktree_id,
8946 file,
8947 )
8948 });
8949
8950 let tags = mem::take(&mut runnable.tags);
8951 let mut tags: Vec<_> = tags
8952 .into_iter()
8953 .flat_map(|tag| {
8954 let tag = tag.0.clone();
8955 inventory
8956 .as_ref()
8957 .into_iter()
8958 .flat_map(|inventory| {
8959 inventory.read(cx).list_tasks(
8960 file.clone(),
8961 Some(runnable.language.clone()),
8962 worktree_id,
8963 cx,
8964 )
8965 })
8966 .filter(move |(_, template)| {
8967 template.tags.iter().any(|source_tag| source_tag == &tag)
8968 })
8969 })
8970 .sorted_by_key(|(kind, _)| kind.to_owned())
8971 .collect();
8972 if let Some((leading_tag_source, _)) = tags.first() {
8973 // Strongest source wins; if we have worktree tag binding, prefer that to
8974 // global and language bindings;
8975 // if we have a global binding, prefer that to language binding.
8976 let first_mismatch = tags
8977 .iter()
8978 .position(|(tag_source, _)| tag_source != leading_tag_source);
8979 if let Some(index) = first_mismatch {
8980 tags.truncate(index);
8981 }
8982 }
8983
8984 tags
8985 }
8986
8987 pub fn move_to_enclosing_bracket(
8988 &mut self,
8989 _: &MoveToEnclosingBracket,
8990 cx: &mut ViewContext<Self>,
8991 ) {
8992 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8993 s.move_offsets_with(|snapshot, selection| {
8994 let Some(enclosing_bracket_ranges) =
8995 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8996 else {
8997 return;
8998 };
8999
9000 let mut best_length = usize::MAX;
9001 let mut best_inside = false;
9002 let mut best_in_bracket_range = false;
9003 let mut best_destination = None;
9004 for (open, close) in enclosing_bracket_ranges {
9005 let close = close.to_inclusive();
9006 let length = close.end() - open.start;
9007 let inside = selection.start >= open.end && selection.end <= *close.start();
9008 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9009 || close.contains(&selection.head());
9010
9011 // If best is next to a bracket and current isn't, skip
9012 if !in_bracket_range && best_in_bracket_range {
9013 continue;
9014 }
9015
9016 // Prefer smaller lengths unless best is inside and current isn't
9017 if length > best_length && (best_inside || !inside) {
9018 continue;
9019 }
9020
9021 best_length = length;
9022 best_inside = inside;
9023 best_in_bracket_range = in_bracket_range;
9024 best_destination = Some(
9025 if close.contains(&selection.start) && close.contains(&selection.end) {
9026 if inside {
9027 open.end
9028 } else {
9029 open.start
9030 }
9031 } else if inside {
9032 *close.start()
9033 } else {
9034 *close.end()
9035 },
9036 );
9037 }
9038
9039 if let Some(destination) = best_destination {
9040 selection.collapse_to(destination, SelectionGoal::None);
9041 }
9042 })
9043 });
9044 }
9045
9046 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9047 self.end_selection(cx);
9048 self.selection_history.mode = SelectionHistoryMode::Undoing;
9049 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9050 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9051 self.select_next_state = entry.select_next_state;
9052 self.select_prev_state = entry.select_prev_state;
9053 self.add_selections_state = entry.add_selections_state;
9054 self.request_autoscroll(Autoscroll::newest(), cx);
9055 }
9056 self.selection_history.mode = SelectionHistoryMode::Normal;
9057 }
9058
9059 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9060 self.end_selection(cx);
9061 self.selection_history.mode = SelectionHistoryMode::Redoing;
9062 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9063 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9064 self.select_next_state = entry.select_next_state;
9065 self.select_prev_state = entry.select_prev_state;
9066 self.add_selections_state = entry.add_selections_state;
9067 self.request_autoscroll(Autoscroll::newest(), cx);
9068 }
9069 self.selection_history.mode = SelectionHistoryMode::Normal;
9070 }
9071
9072 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9073 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9074 }
9075
9076 pub fn expand_excerpts_down(
9077 &mut self,
9078 action: &ExpandExcerptsDown,
9079 cx: &mut ViewContext<Self>,
9080 ) {
9081 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9082 }
9083
9084 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9085 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9086 }
9087
9088 pub fn expand_excerpts_for_direction(
9089 &mut self,
9090 lines: u32,
9091 direction: ExpandExcerptDirection,
9092 cx: &mut ViewContext<Self>,
9093 ) {
9094 let selections = self.selections.disjoint_anchors();
9095
9096 let lines = if lines == 0 {
9097 EditorSettings::get_global(cx).expand_excerpt_lines
9098 } else {
9099 lines
9100 };
9101
9102 self.buffer.update(cx, |buffer, cx| {
9103 buffer.expand_excerpts(
9104 selections
9105 .iter()
9106 .map(|selection| selection.head().excerpt_id)
9107 .dedup(),
9108 lines,
9109 direction,
9110 cx,
9111 )
9112 })
9113 }
9114
9115 pub fn expand_excerpt(
9116 &mut self,
9117 excerpt: ExcerptId,
9118 direction: ExpandExcerptDirection,
9119 cx: &mut ViewContext<Self>,
9120 ) {
9121 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9122 self.buffer.update(cx, |buffer, cx| {
9123 buffer.expand_excerpts([excerpt], lines, direction, cx)
9124 })
9125 }
9126
9127 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9128 self.go_to_diagnostic_impl(Direction::Next, cx)
9129 }
9130
9131 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9132 self.go_to_diagnostic_impl(Direction::Prev, cx)
9133 }
9134
9135 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9136 let buffer = self.buffer.read(cx).snapshot(cx);
9137 let selection = self.selections.newest::<usize>(cx);
9138
9139 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9140 if direction == Direction::Next {
9141 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9142 let (group_id, jump_to) = popover.activation_info();
9143 if self.activate_diagnostics(group_id, cx) {
9144 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9145 let mut new_selection = s.newest_anchor().clone();
9146 new_selection.collapse_to(jump_to, SelectionGoal::None);
9147 s.select_anchors(vec![new_selection.clone()]);
9148 });
9149 }
9150 return;
9151 }
9152 }
9153
9154 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9155 active_diagnostics
9156 .primary_range
9157 .to_offset(&buffer)
9158 .to_inclusive()
9159 });
9160 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9161 if active_primary_range.contains(&selection.head()) {
9162 *active_primary_range.start()
9163 } else {
9164 selection.head()
9165 }
9166 } else {
9167 selection.head()
9168 };
9169 let snapshot = self.snapshot(cx);
9170 loop {
9171 let diagnostics = if direction == Direction::Prev {
9172 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9173 } else {
9174 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9175 }
9176 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9177 let group = diagnostics
9178 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9179 // be sorted in a stable way
9180 // skip until we are at current active diagnostic, if it exists
9181 .skip_while(|entry| {
9182 (match direction {
9183 Direction::Prev => entry.range.start >= search_start,
9184 Direction::Next => entry.range.start <= search_start,
9185 }) && self
9186 .active_diagnostics
9187 .as_ref()
9188 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9189 })
9190 .find_map(|entry| {
9191 if entry.diagnostic.is_primary
9192 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9193 && !entry.range.is_empty()
9194 // if we match with the active diagnostic, skip it
9195 && Some(entry.diagnostic.group_id)
9196 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9197 {
9198 Some((entry.range, entry.diagnostic.group_id))
9199 } else {
9200 None
9201 }
9202 });
9203
9204 if let Some((primary_range, group_id)) = group {
9205 if self.activate_diagnostics(group_id, cx) {
9206 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9207 s.select(vec![Selection {
9208 id: selection.id,
9209 start: primary_range.start,
9210 end: primary_range.start,
9211 reversed: false,
9212 goal: SelectionGoal::None,
9213 }]);
9214 });
9215 }
9216 break;
9217 } else {
9218 // Cycle around to the start of the buffer, potentially moving back to the start of
9219 // the currently active diagnostic.
9220 active_primary_range.take();
9221 if direction == Direction::Prev {
9222 if search_start == buffer.len() {
9223 break;
9224 } else {
9225 search_start = buffer.len();
9226 }
9227 } else if search_start == 0 {
9228 break;
9229 } else {
9230 search_start = 0;
9231 }
9232 }
9233 }
9234 }
9235
9236 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9237 let snapshot = self.snapshot(cx);
9238 let selection = self.selections.newest::<Point>(cx);
9239 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9240 }
9241
9242 fn go_to_hunk_after_position(
9243 &mut self,
9244 snapshot: &EditorSnapshot,
9245 position: Point,
9246 cx: &mut ViewContext<'_, Editor>,
9247 ) -> Option<MultiBufferDiffHunk> {
9248 for (ix, position) in [position, Point::zero()].into_iter().enumerate() {
9249 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9250 snapshot,
9251 position,
9252 ix > 0,
9253 snapshot.diff_map.diff_hunks_in_range(
9254 position + Point::new(1, 0)..snapshot.buffer_snapshot.max_point(),
9255 &snapshot.buffer_snapshot,
9256 ),
9257 cx,
9258 ) {
9259 return Some(hunk);
9260 }
9261 }
9262 None
9263 }
9264
9265 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9266 let snapshot = self.snapshot(cx);
9267 let selection = self.selections.newest::<Point>(cx);
9268 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9269 }
9270
9271 fn go_to_hunk_before_position(
9272 &mut self,
9273 snapshot: &EditorSnapshot,
9274 position: Point,
9275 cx: &mut ViewContext<'_, Editor>,
9276 ) -> Option<MultiBufferDiffHunk> {
9277 for (ix, position) in [position, snapshot.buffer_snapshot.max_point()]
9278 .into_iter()
9279 .enumerate()
9280 {
9281 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9282 snapshot,
9283 position,
9284 ix > 0,
9285 snapshot
9286 .diff_map
9287 .diff_hunks_in_range_rev(Point::zero()..position, &snapshot.buffer_snapshot),
9288 cx,
9289 ) {
9290 return Some(hunk);
9291 }
9292 }
9293 None
9294 }
9295
9296 fn go_to_next_hunk_in_direction(
9297 &mut self,
9298 snapshot: &DisplaySnapshot,
9299 initial_point: Point,
9300 is_wrapped: bool,
9301 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9302 cx: &mut ViewContext<Editor>,
9303 ) -> Option<MultiBufferDiffHunk> {
9304 let display_point = initial_point.to_display_point(snapshot);
9305 let mut hunks = hunks
9306 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9307 .filter(|(display_hunk, _)| {
9308 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9309 })
9310 .dedup();
9311
9312 if let Some((display_hunk, hunk)) = hunks.next() {
9313 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9314 let row = display_hunk.start_display_row();
9315 let point = DisplayPoint::new(row, 0);
9316 s.select_display_ranges([point..point]);
9317 });
9318
9319 Some(hunk)
9320 } else {
9321 None
9322 }
9323 }
9324
9325 pub fn go_to_definition(
9326 &mut self,
9327 _: &GoToDefinition,
9328 cx: &mut ViewContext<Self>,
9329 ) -> Task<Result<Navigated>> {
9330 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9331 cx.spawn(|editor, mut cx| async move {
9332 if definition.await? == Navigated::Yes {
9333 return Ok(Navigated::Yes);
9334 }
9335 match editor.update(&mut cx, |editor, cx| {
9336 editor.find_all_references(&FindAllReferences, cx)
9337 })? {
9338 Some(references) => references.await,
9339 None => Ok(Navigated::No),
9340 }
9341 })
9342 }
9343
9344 pub fn go_to_declaration(
9345 &mut self,
9346 _: &GoToDeclaration,
9347 cx: &mut ViewContext<Self>,
9348 ) -> Task<Result<Navigated>> {
9349 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9350 }
9351
9352 pub fn go_to_declaration_split(
9353 &mut self,
9354 _: &GoToDeclaration,
9355 cx: &mut ViewContext<Self>,
9356 ) -> Task<Result<Navigated>> {
9357 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9358 }
9359
9360 pub fn go_to_implementation(
9361 &mut self,
9362 _: &GoToImplementation,
9363 cx: &mut ViewContext<Self>,
9364 ) -> Task<Result<Navigated>> {
9365 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9366 }
9367
9368 pub fn go_to_implementation_split(
9369 &mut self,
9370 _: &GoToImplementationSplit,
9371 cx: &mut ViewContext<Self>,
9372 ) -> Task<Result<Navigated>> {
9373 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9374 }
9375
9376 pub fn go_to_type_definition(
9377 &mut self,
9378 _: &GoToTypeDefinition,
9379 cx: &mut ViewContext<Self>,
9380 ) -> Task<Result<Navigated>> {
9381 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9382 }
9383
9384 pub fn go_to_definition_split(
9385 &mut self,
9386 _: &GoToDefinitionSplit,
9387 cx: &mut ViewContext<Self>,
9388 ) -> Task<Result<Navigated>> {
9389 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9390 }
9391
9392 pub fn go_to_type_definition_split(
9393 &mut self,
9394 _: &GoToTypeDefinitionSplit,
9395 cx: &mut ViewContext<Self>,
9396 ) -> Task<Result<Navigated>> {
9397 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9398 }
9399
9400 fn go_to_definition_of_kind(
9401 &mut self,
9402 kind: GotoDefinitionKind,
9403 split: bool,
9404 cx: &mut ViewContext<Self>,
9405 ) -> Task<Result<Navigated>> {
9406 let Some(provider) = self.semantics_provider.clone() else {
9407 return Task::ready(Ok(Navigated::No));
9408 };
9409 let head = self.selections.newest::<usize>(cx).head();
9410 let buffer = self.buffer.read(cx);
9411 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9412 text_anchor
9413 } else {
9414 return Task::ready(Ok(Navigated::No));
9415 };
9416
9417 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9418 return Task::ready(Ok(Navigated::No));
9419 };
9420
9421 cx.spawn(|editor, mut cx| async move {
9422 let definitions = definitions.await?;
9423 let navigated = editor
9424 .update(&mut cx, |editor, cx| {
9425 editor.navigate_to_hover_links(
9426 Some(kind),
9427 definitions
9428 .into_iter()
9429 .filter(|location| {
9430 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9431 })
9432 .map(HoverLink::Text)
9433 .collect::<Vec<_>>(),
9434 split,
9435 cx,
9436 )
9437 })?
9438 .await?;
9439 anyhow::Ok(navigated)
9440 })
9441 }
9442
9443 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9444 let selection = self.selections.newest_anchor();
9445 let head = selection.head();
9446 let tail = selection.tail();
9447
9448 let Some((buffer, start_position)) =
9449 self.buffer.read(cx).text_anchor_for_position(head, cx)
9450 else {
9451 return;
9452 };
9453
9454 let end_position = if head != tail {
9455 let Some((_, pos)) = self.buffer.read(cx).text_anchor_for_position(tail, cx) else {
9456 return;
9457 };
9458 Some(pos)
9459 } else {
9460 None
9461 };
9462
9463 let url_finder = cx.spawn(|editor, mut cx| async move {
9464 let url = if let Some(end_pos) = end_position {
9465 find_url_from_range(&buffer, start_position..end_pos, cx.clone())
9466 } else {
9467 find_url(&buffer, start_position, cx.clone()).map(|(_, url)| url)
9468 };
9469
9470 if let Some(url) = url {
9471 editor.update(&mut cx, |_, cx| {
9472 cx.open_url(&url);
9473 })
9474 } else {
9475 Ok(())
9476 }
9477 });
9478
9479 url_finder.detach();
9480 }
9481
9482 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9483 let Some(workspace) = self.workspace() else {
9484 return;
9485 };
9486
9487 let position = self.selections.newest_anchor().head();
9488
9489 let Some((buffer, buffer_position)) =
9490 self.buffer.read(cx).text_anchor_for_position(position, cx)
9491 else {
9492 return;
9493 };
9494
9495 let project = self.project.clone();
9496
9497 cx.spawn(|_, mut cx| async move {
9498 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9499
9500 if let Some((_, path)) = result {
9501 workspace
9502 .update(&mut cx, |workspace, cx| {
9503 workspace.open_resolved_path(path, cx)
9504 })?
9505 .await?;
9506 }
9507 anyhow::Ok(())
9508 })
9509 .detach();
9510 }
9511
9512 pub(crate) fn navigate_to_hover_links(
9513 &mut self,
9514 kind: Option<GotoDefinitionKind>,
9515 mut definitions: Vec<HoverLink>,
9516 split: bool,
9517 cx: &mut ViewContext<Editor>,
9518 ) -> Task<Result<Navigated>> {
9519 // If there is one definition, just open it directly
9520 if definitions.len() == 1 {
9521 let definition = definitions.pop().unwrap();
9522
9523 enum TargetTaskResult {
9524 Location(Option<Location>),
9525 AlreadyNavigated,
9526 }
9527
9528 let target_task = match definition {
9529 HoverLink::Text(link) => {
9530 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9531 }
9532 HoverLink::InlayHint(lsp_location, server_id) => {
9533 let computation = self.compute_target_location(lsp_location, server_id, cx);
9534 cx.background_executor().spawn(async move {
9535 let location = computation.await?;
9536 Ok(TargetTaskResult::Location(location))
9537 })
9538 }
9539 HoverLink::Url(url) => {
9540 cx.open_url(&url);
9541 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9542 }
9543 HoverLink::File(path) => {
9544 if let Some(workspace) = self.workspace() {
9545 cx.spawn(|_, mut cx| async move {
9546 workspace
9547 .update(&mut cx, |workspace, cx| {
9548 workspace.open_resolved_path(path, cx)
9549 })?
9550 .await
9551 .map(|_| TargetTaskResult::AlreadyNavigated)
9552 })
9553 } else {
9554 Task::ready(Ok(TargetTaskResult::Location(None)))
9555 }
9556 }
9557 };
9558 cx.spawn(|editor, mut cx| async move {
9559 let target = match target_task.await.context("target resolution task")? {
9560 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9561 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9562 TargetTaskResult::Location(Some(target)) => target,
9563 };
9564
9565 editor.update(&mut cx, |editor, cx| {
9566 let Some(workspace) = editor.workspace() else {
9567 return Navigated::No;
9568 };
9569 let pane = workspace.read(cx).active_pane().clone();
9570
9571 let range = target.range.to_offset(target.buffer.read(cx));
9572 let range = editor.range_for_match(&range);
9573
9574 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9575 let buffer = target.buffer.read(cx);
9576 let range = check_multiline_range(buffer, range);
9577 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9578 s.select_ranges([range]);
9579 });
9580 } else {
9581 cx.window_context().defer(move |cx| {
9582 let target_editor: View<Self> =
9583 workspace.update(cx, |workspace, cx| {
9584 let pane = if split {
9585 workspace.adjacent_pane(cx)
9586 } else {
9587 workspace.active_pane().clone()
9588 };
9589
9590 workspace.open_project_item(
9591 pane,
9592 target.buffer.clone(),
9593 true,
9594 true,
9595 cx,
9596 )
9597 });
9598 target_editor.update(cx, |target_editor, cx| {
9599 // When selecting a definition in a different buffer, disable the nav history
9600 // to avoid creating a history entry at the previous cursor location.
9601 pane.update(cx, |pane, _| pane.disable_history());
9602 let buffer = target.buffer.read(cx);
9603 let range = check_multiline_range(buffer, range);
9604 target_editor.change_selections(
9605 Some(Autoscroll::focused()),
9606 cx,
9607 |s| {
9608 s.select_ranges([range]);
9609 },
9610 );
9611 pane.update(cx, |pane, _| pane.enable_history());
9612 });
9613 });
9614 }
9615 Navigated::Yes
9616 })
9617 })
9618 } else if !definitions.is_empty() {
9619 cx.spawn(|editor, mut cx| async move {
9620 let (title, location_tasks, workspace) = editor
9621 .update(&mut cx, |editor, cx| {
9622 let tab_kind = match kind {
9623 Some(GotoDefinitionKind::Implementation) => "Implementations",
9624 _ => "Definitions",
9625 };
9626 let title = definitions
9627 .iter()
9628 .find_map(|definition| match definition {
9629 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9630 let buffer = origin.buffer.read(cx);
9631 format!(
9632 "{} for {}",
9633 tab_kind,
9634 buffer
9635 .text_for_range(origin.range.clone())
9636 .collect::<String>()
9637 )
9638 }),
9639 HoverLink::InlayHint(_, _) => None,
9640 HoverLink::Url(_) => None,
9641 HoverLink::File(_) => None,
9642 })
9643 .unwrap_or(tab_kind.to_string());
9644 let location_tasks = definitions
9645 .into_iter()
9646 .map(|definition| match definition {
9647 HoverLink::Text(link) => Task::ready(Ok(Some(link.target))),
9648 HoverLink::InlayHint(lsp_location, server_id) => {
9649 editor.compute_target_location(lsp_location, server_id, cx)
9650 }
9651 HoverLink::Url(_) => Task::ready(Ok(None)),
9652 HoverLink::File(_) => Task::ready(Ok(None)),
9653 })
9654 .collect::<Vec<_>>();
9655 (title, location_tasks, editor.workspace().clone())
9656 })
9657 .context("location tasks preparation")?;
9658
9659 let locations = future::join_all(location_tasks)
9660 .await
9661 .into_iter()
9662 .filter_map(|location| location.transpose())
9663 .collect::<Result<_>>()
9664 .context("location tasks")?;
9665
9666 let Some(workspace) = workspace else {
9667 return Ok(Navigated::No);
9668 };
9669 let opened = workspace
9670 .update(&mut cx, |workspace, cx| {
9671 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9672 })
9673 .ok();
9674
9675 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9676 })
9677 } else {
9678 Task::ready(Ok(Navigated::No))
9679 }
9680 }
9681
9682 fn compute_target_location(
9683 &self,
9684 lsp_location: lsp::Location,
9685 server_id: LanguageServerId,
9686 cx: &mut ViewContext<Self>,
9687 ) -> Task<anyhow::Result<Option<Location>>> {
9688 let Some(project) = self.project.clone() else {
9689 return Task::ready(Ok(None));
9690 };
9691
9692 cx.spawn(move |editor, mut cx| async move {
9693 let location_task = editor.update(&mut cx, |_, cx| {
9694 project.update(cx, |project, cx| {
9695 let language_server_name = project
9696 .language_server_statuses(cx)
9697 .find(|(id, _)| server_id == *id)
9698 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9699 language_server_name.map(|language_server_name| {
9700 project.open_local_buffer_via_lsp(
9701 lsp_location.uri.clone(),
9702 server_id,
9703 language_server_name,
9704 cx,
9705 )
9706 })
9707 })
9708 })?;
9709 let location = match location_task {
9710 Some(task) => Some({
9711 let target_buffer_handle = task.await.context("open local buffer")?;
9712 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9713 let target_start = target_buffer
9714 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9715 let target_end = target_buffer
9716 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9717 target_buffer.anchor_after(target_start)
9718 ..target_buffer.anchor_before(target_end)
9719 })?;
9720 Location {
9721 buffer: target_buffer_handle,
9722 range,
9723 }
9724 }),
9725 None => None,
9726 };
9727 Ok(location)
9728 })
9729 }
9730
9731 pub fn find_all_references(
9732 &mut self,
9733 _: &FindAllReferences,
9734 cx: &mut ViewContext<Self>,
9735 ) -> Option<Task<Result<Navigated>>> {
9736 let selection = self.selections.newest::<usize>(cx);
9737 let multi_buffer = self.buffer.read(cx);
9738 let head = selection.head();
9739
9740 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9741 let head_anchor = multi_buffer_snapshot.anchor_at(
9742 head,
9743 if head < selection.tail() {
9744 Bias::Right
9745 } else {
9746 Bias::Left
9747 },
9748 );
9749
9750 match self
9751 .find_all_references_task_sources
9752 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9753 {
9754 Ok(_) => {
9755 log::info!(
9756 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9757 );
9758 return None;
9759 }
9760 Err(i) => {
9761 self.find_all_references_task_sources.insert(i, head_anchor);
9762 }
9763 }
9764
9765 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9766 let workspace = self.workspace()?;
9767 let project = workspace.read(cx).project().clone();
9768 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9769 Some(cx.spawn(|editor, mut cx| async move {
9770 let _cleanup = defer({
9771 let mut cx = cx.clone();
9772 move || {
9773 let _ = editor.update(&mut cx, |editor, _| {
9774 if let Ok(i) =
9775 editor
9776 .find_all_references_task_sources
9777 .binary_search_by(|anchor| {
9778 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9779 })
9780 {
9781 editor.find_all_references_task_sources.remove(i);
9782 }
9783 });
9784 }
9785 });
9786
9787 let locations = references.await?;
9788 if locations.is_empty() {
9789 return anyhow::Ok(Navigated::No);
9790 }
9791
9792 workspace.update(&mut cx, |workspace, cx| {
9793 let title = locations
9794 .first()
9795 .as_ref()
9796 .map(|location| {
9797 let buffer = location.buffer.read(cx);
9798 format!(
9799 "References to `{}`",
9800 buffer
9801 .text_for_range(location.range.clone())
9802 .collect::<String>()
9803 )
9804 })
9805 .unwrap();
9806 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9807 Navigated::Yes
9808 })
9809 }))
9810 }
9811
9812 /// Opens a multibuffer with the given project locations in it
9813 pub fn open_locations_in_multibuffer(
9814 workspace: &mut Workspace,
9815 mut locations: Vec<Location>,
9816 title: String,
9817 split: bool,
9818 cx: &mut ViewContext<Workspace>,
9819 ) {
9820 // If there are multiple definitions, open them in a multibuffer
9821 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9822 let mut locations = locations.into_iter().peekable();
9823 let mut ranges_to_highlight = Vec::new();
9824 let capability = workspace.project().read(cx).capability();
9825
9826 let excerpt_buffer = cx.new_model(|cx| {
9827 let mut multibuffer = MultiBuffer::new(capability);
9828 while let Some(location) = locations.next() {
9829 let buffer = location.buffer.read(cx);
9830 let mut ranges_for_buffer = Vec::new();
9831 let range = location.range.to_offset(buffer);
9832 ranges_for_buffer.push(range.clone());
9833
9834 while let Some(next_location) = locations.peek() {
9835 if next_location.buffer == location.buffer {
9836 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9837 locations.next();
9838 } else {
9839 break;
9840 }
9841 }
9842
9843 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9844 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9845 location.buffer.clone(),
9846 ranges_for_buffer,
9847 DEFAULT_MULTIBUFFER_CONTEXT,
9848 cx,
9849 ))
9850 }
9851
9852 multibuffer.with_title(title)
9853 });
9854
9855 let editor = cx.new_view(|cx| {
9856 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9857 });
9858 editor.update(cx, |editor, cx| {
9859 if let Some(first_range) = ranges_to_highlight.first() {
9860 editor.change_selections(None, cx, |selections| {
9861 selections.clear_disjoint();
9862 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9863 });
9864 }
9865 editor.highlight_background::<Self>(
9866 &ranges_to_highlight,
9867 |theme| theme.editor_highlighted_line_background,
9868 cx,
9869 );
9870 editor.register_buffers_with_language_servers(cx);
9871 });
9872
9873 let item = Box::new(editor);
9874 let item_id = item.item_id();
9875
9876 if split {
9877 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9878 } else {
9879 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9880 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9881 pane.close_current_preview_item(cx)
9882 } else {
9883 None
9884 }
9885 });
9886 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9887 }
9888 workspace.active_pane().update(cx, |pane, cx| {
9889 pane.set_preview_item_id(Some(item_id), cx);
9890 });
9891 }
9892
9893 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9894 use language::ToOffset as _;
9895
9896 let provider = self.semantics_provider.clone()?;
9897 let selection = self.selections.newest_anchor().clone();
9898 let (cursor_buffer, cursor_buffer_position) = self
9899 .buffer
9900 .read(cx)
9901 .text_anchor_for_position(selection.head(), cx)?;
9902 let (tail_buffer, cursor_buffer_position_end) = self
9903 .buffer
9904 .read(cx)
9905 .text_anchor_for_position(selection.tail(), cx)?;
9906 if tail_buffer != cursor_buffer {
9907 return None;
9908 }
9909
9910 let snapshot = cursor_buffer.read(cx).snapshot();
9911 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9912 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9913 let prepare_rename = provider
9914 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
9915 .unwrap_or_else(|| Task::ready(Ok(None)));
9916 drop(snapshot);
9917
9918 Some(cx.spawn(|this, mut cx| async move {
9919 let rename_range = if let Some(range) = prepare_rename.await? {
9920 Some(range)
9921 } else {
9922 this.update(&mut cx, |this, cx| {
9923 let buffer = this.buffer.read(cx).snapshot(cx);
9924 let mut buffer_highlights = this
9925 .document_highlights_for_position(selection.head(), &buffer)
9926 .filter(|highlight| {
9927 highlight.start.excerpt_id == selection.head().excerpt_id
9928 && highlight.end.excerpt_id == selection.head().excerpt_id
9929 });
9930 buffer_highlights
9931 .next()
9932 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9933 })?
9934 };
9935 if let Some(rename_range) = rename_range {
9936 this.update(&mut cx, |this, cx| {
9937 let snapshot = cursor_buffer.read(cx).snapshot();
9938 let rename_buffer_range = rename_range.to_offset(&snapshot);
9939 let cursor_offset_in_rename_range =
9940 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9941 let cursor_offset_in_rename_range_end =
9942 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9943
9944 this.take_rename(false, cx);
9945 let buffer = this.buffer.read(cx).read(cx);
9946 let cursor_offset = selection.head().to_offset(&buffer);
9947 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9948 let rename_end = rename_start + rename_buffer_range.len();
9949 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9950 let mut old_highlight_id = None;
9951 let old_name: Arc<str> = buffer
9952 .chunks(rename_start..rename_end, true)
9953 .map(|chunk| {
9954 if old_highlight_id.is_none() {
9955 old_highlight_id = chunk.syntax_highlight_id;
9956 }
9957 chunk.text
9958 })
9959 .collect::<String>()
9960 .into();
9961
9962 drop(buffer);
9963
9964 // Position the selection in the rename editor so that it matches the current selection.
9965 this.show_local_selections = false;
9966 let rename_editor = cx.new_view(|cx| {
9967 let mut editor = Editor::single_line(cx);
9968 editor.buffer.update(cx, |buffer, cx| {
9969 buffer.edit([(0..0, old_name.clone())], None, cx)
9970 });
9971 let rename_selection_range = match cursor_offset_in_rename_range
9972 .cmp(&cursor_offset_in_rename_range_end)
9973 {
9974 Ordering::Equal => {
9975 editor.select_all(&SelectAll, cx);
9976 return editor;
9977 }
9978 Ordering::Less => {
9979 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
9980 }
9981 Ordering::Greater => {
9982 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
9983 }
9984 };
9985 if rename_selection_range.end > old_name.len() {
9986 editor.select_all(&SelectAll, cx);
9987 } else {
9988 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9989 s.select_ranges([rename_selection_range]);
9990 });
9991 }
9992 editor
9993 });
9994 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
9995 if e == &EditorEvent::Focused {
9996 cx.emit(EditorEvent::FocusedIn)
9997 }
9998 })
9999 .detach();
10000
10001 let write_highlights =
10002 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10003 let read_highlights =
10004 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10005 let ranges = write_highlights
10006 .iter()
10007 .flat_map(|(_, ranges)| ranges.iter())
10008 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10009 .cloned()
10010 .collect();
10011
10012 this.highlight_text::<Rename>(
10013 ranges,
10014 HighlightStyle {
10015 fade_out: Some(0.6),
10016 ..Default::default()
10017 },
10018 cx,
10019 );
10020 let rename_focus_handle = rename_editor.focus_handle(cx);
10021 cx.focus(&rename_focus_handle);
10022 let block_id = this.insert_blocks(
10023 [BlockProperties {
10024 style: BlockStyle::Flex,
10025 placement: BlockPlacement::Below(range.start),
10026 height: 1,
10027 render: Arc::new({
10028 let rename_editor = rename_editor.clone();
10029 move |cx: &mut BlockContext| {
10030 let mut text_style = cx.editor_style.text.clone();
10031 if let Some(highlight_style) = old_highlight_id
10032 .and_then(|h| h.style(&cx.editor_style.syntax))
10033 {
10034 text_style = text_style.highlight(highlight_style);
10035 }
10036 div()
10037 .block_mouse_down()
10038 .pl(cx.anchor_x)
10039 .child(EditorElement::new(
10040 &rename_editor,
10041 EditorStyle {
10042 background: cx.theme().system().transparent,
10043 local_player: cx.editor_style.local_player,
10044 text: text_style,
10045 scrollbar_width: cx.editor_style.scrollbar_width,
10046 syntax: cx.editor_style.syntax.clone(),
10047 status: cx.editor_style.status.clone(),
10048 inlay_hints_style: HighlightStyle {
10049 font_weight: Some(FontWeight::BOLD),
10050 ..make_inlay_hints_style(cx)
10051 },
10052 inline_completion_styles: make_suggestion_styles(
10053 cx,
10054 ),
10055 ..EditorStyle::default()
10056 },
10057 ))
10058 .into_any_element()
10059 }
10060 }),
10061 priority: 0,
10062 }],
10063 Some(Autoscroll::fit()),
10064 cx,
10065 )[0];
10066 this.pending_rename = Some(RenameState {
10067 range,
10068 old_name,
10069 editor: rename_editor,
10070 block_id,
10071 });
10072 })?;
10073 }
10074
10075 Ok(())
10076 }))
10077 }
10078
10079 pub fn confirm_rename(
10080 &mut self,
10081 _: &ConfirmRename,
10082 cx: &mut ViewContext<Self>,
10083 ) -> Option<Task<Result<()>>> {
10084 let rename = self.take_rename(false, cx)?;
10085 let workspace = self.workspace()?.downgrade();
10086 let (buffer, start) = self
10087 .buffer
10088 .read(cx)
10089 .text_anchor_for_position(rename.range.start, cx)?;
10090 let (end_buffer, _) = self
10091 .buffer
10092 .read(cx)
10093 .text_anchor_for_position(rename.range.end, cx)?;
10094 if buffer != end_buffer {
10095 return None;
10096 }
10097
10098 let old_name = rename.old_name;
10099 let new_name = rename.editor.read(cx).text(cx);
10100
10101 let rename = self.semantics_provider.as_ref()?.perform_rename(
10102 &buffer,
10103 start,
10104 new_name.clone(),
10105 cx,
10106 )?;
10107
10108 Some(cx.spawn(|editor, mut cx| async move {
10109 let project_transaction = rename.await?;
10110 Self::open_project_transaction(
10111 &editor,
10112 workspace,
10113 project_transaction,
10114 format!("Rename: {} → {}", old_name, new_name),
10115 cx.clone(),
10116 )
10117 .await?;
10118
10119 editor.update(&mut cx, |editor, cx| {
10120 editor.refresh_document_highlights(cx);
10121 })?;
10122 Ok(())
10123 }))
10124 }
10125
10126 fn take_rename(
10127 &mut self,
10128 moving_cursor: bool,
10129 cx: &mut ViewContext<Self>,
10130 ) -> Option<RenameState> {
10131 let rename = self.pending_rename.take()?;
10132 if rename.editor.focus_handle(cx).is_focused(cx) {
10133 cx.focus(&self.focus_handle);
10134 }
10135
10136 self.remove_blocks(
10137 [rename.block_id].into_iter().collect(),
10138 Some(Autoscroll::fit()),
10139 cx,
10140 );
10141 self.clear_highlights::<Rename>(cx);
10142 self.show_local_selections = true;
10143
10144 if moving_cursor {
10145 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10146 editor.selections.newest::<usize>(cx).head()
10147 });
10148
10149 // Update the selection to match the position of the selection inside
10150 // the rename editor.
10151 let snapshot = self.buffer.read(cx).read(cx);
10152 let rename_range = rename.range.to_offset(&snapshot);
10153 let cursor_in_editor = snapshot
10154 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10155 .min(rename_range.end);
10156 drop(snapshot);
10157
10158 self.change_selections(None, cx, |s| {
10159 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10160 });
10161 } else {
10162 self.refresh_document_highlights(cx);
10163 }
10164
10165 Some(rename)
10166 }
10167
10168 pub fn pending_rename(&self) -> Option<&RenameState> {
10169 self.pending_rename.as_ref()
10170 }
10171
10172 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10173 let project = match &self.project {
10174 Some(project) => project.clone(),
10175 None => return None,
10176 };
10177
10178 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10179 }
10180
10181 fn format_selections(
10182 &mut self,
10183 _: &FormatSelections,
10184 cx: &mut ViewContext<Self>,
10185 ) -> Option<Task<Result<()>>> {
10186 let project = match &self.project {
10187 Some(project) => project.clone(),
10188 None => return None,
10189 };
10190
10191 let selections = self
10192 .selections
10193 .all_adjusted(cx)
10194 .into_iter()
10195 .filter(|s| !s.is_empty())
10196 .collect_vec();
10197
10198 Some(self.perform_format(
10199 project,
10200 FormatTrigger::Manual,
10201 FormatTarget::Ranges(selections),
10202 cx,
10203 ))
10204 }
10205
10206 fn perform_format(
10207 &mut self,
10208 project: Model<Project>,
10209 trigger: FormatTrigger,
10210 target: FormatTarget,
10211 cx: &mut ViewContext<Self>,
10212 ) -> Task<Result<()>> {
10213 let buffer = self.buffer().clone();
10214 let mut buffers = buffer.read(cx).all_buffers();
10215 if trigger == FormatTrigger::Save {
10216 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10217 }
10218
10219 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10220 let format = project.update(cx, |project, cx| {
10221 project.format(buffers, true, trigger, target, cx)
10222 });
10223
10224 cx.spawn(|_, mut cx| async move {
10225 let transaction = futures::select_biased! {
10226 () = timeout => {
10227 log::warn!("timed out waiting for formatting");
10228 None
10229 }
10230 transaction = format.log_err().fuse() => transaction,
10231 };
10232
10233 buffer
10234 .update(&mut cx, |buffer, cx| {
10235 if let Some(transaction) = transaction {
10236 if !buffer.is_singleton() {
10237 buffer.push_transaction(&transaction.0, cx);
10238 }
10239 }
10240
10241 cx.notify();
10242 })
10243 .ok();
10244
10245 Ok(())
10246 })
10247 }
10248
10249 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10250 if let Some(project) = self.project.clone() {
10251 self.buffer.update(cx, |multi_buffer, cx| {
10252 project.update(cx, |project, cx| {
10253 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10254 });
10255 })
10256 }
10257 }
10258
10259 fn cancel_language_server_work(
10260 &mut self,
10261 _: &actions::CancelLanguageServerWork,
10262 cx: &mut ViewContext<Self>,
10263 ) {
10264 if let Some(project) = self.project.clone() {
10265 self.buffer.update(cx, |multi_buffer, cx| {
10266 project.update(cx, |project, cx| {
10267 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10268 });
10269 })
10270 }
10271 }
10272
10273 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10274 cx.show_character_palette();
10275 }
10276
10277 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10278 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10279 let buffer = self.buffer.read(cx).snapshot(cx);
10280 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10281 let is_valid = buffer
10282 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10283 .any(|entry| {
10284 entry.diagnostic.is_primary
10285 && !entry.range.is_empty()
10286 && entry.range.start == primary_range_start
10287 && entry.diagnostic.message == active_diagnostics.primary_message
10288 });
10289
10290 if is_valid != active_diagnostics.is_valid {
10291 active_diagnostics.is_valid = is_valid;
10292 let mut new_styles = HashMap::default();
10293 for (block_id, diagnostic) in &active_diagnostics.blocks {
10294 new_styles.insert(
10295 *block_id,
10296 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10297 );
10298 }
10299 self.display_map.update(cx, |display_map, _cx| {
10300 display_map.replace_blocks(new_styles)
10301 });
10302 }
10303 }
10304 }
10305
10306 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10307 self.dismiss_diagnostics(cx);
10308 let snapshot = self.snapshot(cx);
10309 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10310 let buffer = self.buffer.read(cx).snapshot(cx);
10311
10312 let mut primary_range = None;
10313 let mut primary_message = None;
10314 let mut group_end = Point::zero();
10315 let diagnostic_group = buffer
10316 .diagnostic_group::<MultiBufferPoint>(group_id)
10317 .filter_map(|entry| {
10318 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10319 && (entry.range.start.row == entry.range.end.row
10320 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10321 {
10322 return None;
10323 }
10324 if entry.range.end > group_end {
10325 group_end = entry.range.end;
10326 }
10327 if entry.diagnostic.is_primary {
10328 primary_range = Some(entry.range.clone());
10329 primary_message = Some(entry.diagnostic.message.clone());
10330 }
10331 Some(entry)
10332 })
10333 .collect::<Vec<_>>();
10334 let primary_range = primary_range?;
10335 let primary_message = primary_message?;
10336 let primary_range =
10337 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10338
10339 let blocks = display_map
10340 .insert_blocks(
10341 diagnostic_group.iter().map(|entry| {
10342 let diagnostic = entry.diagnostic.clone();
10343 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10344 BlockProperties {
10345 style: BlockStyle::Fixed,
10346 placement: BlockPlacement::Below(
10347 buffer.anchor_after(entry.range.start),
10348 ),
10349 height: message_height,
10350 render: diagnostic_block_renderer(diagnostic, None, true, true),
10351 priority: 0,
10352 }
10353 }),
10354 cx,
10355 )
10356 .into_iter()
10357 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10358 .collect();
10359
10360 Some(ActiveDiagnosticGroup {
10361 primary_range,
10362 primary_message,
10363 group_id,
10364 blocks,
10365 is_valid: true,
10366 })
10367 });
10368 self.active_diagnostics.is_some()
10369 }
10370
10371 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10372 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10373 self.display_map.update(cx, |display_map, cx| {
10374 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10375 });
10376 cx.notify();
10377 }
10378 }
10379
10380 pub fn set_selections_from_remote(
10381 &mut self,
10382 selections: Vec<Selection<Anchor>>,
10383 pending_selection: Option<Selection<Anchor>>,
10384 cx: &mut ViewContext<Self>,
10385 ) {
10386 let old_cursor_position = self.selections.newest_anchor().head();
10387 self.selections.change_with(cx, |s| {
10388 s.select_anchors(selections);
10389 if let Some(pending_selection) = pending_selection {
10390 s.set_pending(pending_selection, SelectMode::Character);
10391 } else {
10392 s.clear_pending();
10393 }
10394 });
10395 self.selections_did_change(false, &old_cursor_position, true, cx);
10396 }
10397
10398 fn push_to_selection_history(&mut self) {
10399 self.selection_history.push(SelectionHistoryEntry {
10400 selections: self.selections.disjoint_anchors(),
10401 select_next_state: self.select_next_state.clone(),
10402 select_prev_state: self.select_prev_state.clone(),
10403 add_selections_state: self.add_selections_state.clone(),
10404 });
10405 }
10406
10407 pub fn transact(
10408 &mut self,
10409 cx: &mut ViewContext<Self>,
10410 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10411 ) -> Option<TransactionId> {
10412 self.start_transaction_at(Instant::now(), cx);
10413 update(self, cx);
10414 self.end_transaction_at(Instant::now(), cx)
10415 }
10416
10417 pub fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10418 self.end_selection(cx);
10419 if let Some(tx_id) = self
10420 .buffer
10421 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10422 {
10423 self.selection_history
10424 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10425 cx.emit(EditorEvent::TransactionBegun {
10426 transaction_id: tx_id,
10427 })
10428 }
10429 }
10430
10431 pub fn end_transaction_at(
10432 &mut self,
10433 now: Instant,
10434 cx: &mut ViewContext<Self>,
10435 ) -> Option<TransactionId> {
10436 if let Some(transaction_id) = self
10437 .buffer
10438 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10439 {
10440 if let Some((_, end_selections)) =
10441 self.selection_history.transaction_mut(transaction_id)
10442 {
10443 *end_selections = Some(self.selections.disjoint_anchors());
10444 } else {
10445 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10446 }
10447
10448 cx.emit(EditorEvent::Edited { transaction_id });
10449 Some(transaction_id)
10450 } else {
10451 None
10452 }
10453 }
10454
10455 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10456 if self.is_singleton(cx) {
10457 let selection = self.selections.newest::<Point>(cx);
10458
10459 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10460 let range = if selection.is_empty() {
10461 let point = selection.head().to_display_point(&display_map);
10462 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10463 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10464 .to_point(&display_map);
10465 start..end
10466 } else {
10467 selection.range()
10468 };
10469 if display_map.folds_in_range(range).next().is_some() {
10470 self.unfold_lines(&Default::default(), cx)
10471 } else {
10472 self.fold(&Default::default(), cx)
10473 }
10474 } else {
10475 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10476 let mut toggled_buffers = HashSet::default();
10477 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10478 self.selections
10479 .disjoint_anchors()
10480 .into_iter()
10481 .map(|selection| selection.range()),
10482 ) {
10483 let buffer_id = buffer_snapshot.remote_id();
10484 if toggled_buffers.insert(buffer_id) {
10485 if self.buffer_folded(buffer_id, cx) {
10486 self.unfold_buffer(buffer_id, cx);
10487 } else {
10488 self.fold_buffer(buffer_id, cx);
10489 }
10490 }
10491 }
10492 }
10493 }
10494
10495 pub fn toggle_fold_recursive(
10496 &mut self,
10497 _: &actions::ToggleFoldRecursive,
10498 cx: &mut ViewContext<Self>,
10499 ) {
10500 let selection = self.selections.newest::<Point>(cx);
10501
10502 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10503 let range = if selection.is_empty() {
10504 let point = selection.head().to_display_point(&display_map);
10505 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10506 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10507 .to_point(&display_map);
10508 start..end
10509 } else {
10510 selection.range()
10511 };
10512 if display_map.folds_in_range(range).next().is_some() {
10513 self.unfold_recursive(&Default::default(), cx)
10514 } else {
10515 self.fold_recursive(&Default::default(), cx)
10516 }
10517 }
10518
10519 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10520 if self.is_singleton(cx) {
10521 let mut to_fold = Vec::new();
10522 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10523 let selections = self.selections.all_adjusted(cx);
10524
10525 for selection in selections {
10526 let range = selection.range().sorted();
10527 let buffer_start_row = range.start.row;
10528
10529 if range.start.row != range.end.row {
10530 let mut found = false;
10531 let mut row = range.start.row;
10532 while row <= range.end.row {
10533 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row))
10534 {
10535 found = true;
10536 row = crease.range().end.row + 1;
10537 to_fold.push(crease);
10538 } else {
10539 row += 1
10540 }
10541 }
10542 if found {
10543 continue;
10544 }
10545 }
10546
10547 for row in (0..=range.start.row).rev() {
10548 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10549 if crease.range().end.row >= buffer_start_row {
10550 to_fold.push(crease);
10551 if row <= range.start.row {
10552 break;
10553 }
10554 }
10555 }
10556 }
10557 }
10558
10559 self.fold_creases(to_fold, true, cx);
10560 } else {
10561 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10562 let mut folded_buffers = HashSet::default();
10563 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10564 self.selections
10565 .disjoint_anchors()
10566 .into_iter()
10567 .map(|selection| selection.range()),
10568 ) {
10569 let buffer_id = buffer_snapshot.remote_id();
10570 if folded_buffers.insert(buffer_id) {
10571 self.fold_buffer(buffer_id, cx);
10572 }
10573 }
10574 }
10575 }
10576
10577 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10578 if !self.buffer.read(cx).is_singleton() {
10579 return;
10580 }
10581
10582 let fold_at_level = fold_at.level;
10583 let snapshot = self.buffer.read(cx).snapshot(cx);
10584 let mut to_fold = Vec::new();
10585 let mut stack = vec![(0, snapshot.max_row().0, 1)];
10586
10587 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10588 while start_row < end_row {
10589 match self
10590 .snapshot(cx)
10591 .crease_for_buffer_row(MultiBufferRow(start_row))
10592 {
10593 Some(crease) => {
10594 let nested_start_row = crease.range().start.row + 1;
10595 let nested_end_row = crease.range().end.row;
10596
10597 if current_level < fold_at_level {
10598 stack.push((nested_start_row, nested_end_row, current_level + 1));
10599 } else if current_level == fold_at_level {
10600 to_fold.push(crease);
10601 }
10602
10603 start_row = nested_end_row + 1;
10604 }
10605 None => start_row += 1,
10606 }
10607 }
10608 }
10609
10610 self.fold_creases(to_fold, true, cx);
10611 }
10612
10613 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10614 if self.buffer.read(cx).is_singleton() {
10615 let mut fold_ranges = Vec::new();
10616 let snapshot = self.buffer.read(cx).snapshot(cx);
10617
10618 for row in 0..snapshot.max_row().0 {
10619 if let Some(foldable_range) =
10620 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
10621 {
10622 fold_ranges.push(foldable_range);
10623 }
10624 }
10625
10626 self.fold_creases(fold_ranges, true, cx);
10627 } else {
10628 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10629 editor
10630 .update(&mut cx, |editor, cx| {
10631 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10632 editor.fold_buffer(buffer_id, cx);
10633 }
10634 })
10635 .ok();
10636 });
10637 }
10638 }
10639
10640 pub fn fold_function_bodies(
10641 &mut self,
10642 _: &actions::FoldFunctionBodies,
10643 cx: &mut ViewContext<Self>,
10644 ) {
10645 let snapshot = self.buffer.read(cx).snapshot(cx);
10646 let Some((_, _, buffer)) = snapshot.as_singleton() else {
10647 return;
10648 };
10649 let creases = buffer
10650 .function_body_fold_ranges(0..buffer.len())
10651 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
10652 .collect();
10653
10654 self.fold_creases(creases, true, cx);
10655 }
10656
10657 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10658 let mut to_fold = Vec::new();
10659 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10660 let selections = self.selections.all_adjusted(cx);
10661
10662 for selection in selections {
10663 let range = selection.range().sorted();
10664 let buffer_start_row = range.start.row;
10665
10666 if range.start.row != range.end.row {
10667 let mut found = false;
10668 for row in range.start.row..=range.end.row {
10669 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10670 found = true;
10671 to_fold.push(crease);
10672 }
10673 }
10674 if found {
10675 continue;
10676 }
10677 }
10678
10679 for row in (0..=range.start.row).rev() {
10680 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10681 if crease.range().end.row >= buffer_start_row {
10682 to_fold.push(crease);
10683 } else {
10684 break;
10685 }
10686 }
10687 }
10688 }
10689
10690 self.fold_creases(to_fold, true, cx);
10691 }
10692
10693 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10694 let buffer_row = fold_at.buffer_row;
10695 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10696
10697 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
10698 let autoscroll = self
10699 .selections
10700 .all::<Point>(cx)
10701 .iter()
10702 .any(|selection| crease.range().overlaps(&selection.range()));
10703
10704 self.fold_creases(vec![crease], autoscroll, cx);
10705 }
10706 }
10707
10708 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10709 if self.is_singleton(cx) {
10710 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10711 let buffer = &display_map.buffer_snapshot;
10712 let selections = self.selections.all::<Point>(cx);
10713 let ranges = selections
10714 .iter()
10715 .map(|s| {
10716 let range = s.display_range(&display_map).sorted();
10717 let mut start = range.start.to_point(&display_map);
10718 let mut end = range.end.to_point(&display_map);
10719 start.column = 0;
10720 end.column = buffer.line_len(MultiBufferRow(end.row));
10721 start..end
10722 })
10723 .collect::<Vec<_>>();
10724
10725 self.unfold_ranges(&ranges, true, true, cx);
10726 } else {
10727 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10728 let mut unfolded_buffers = HashSet::default();
10729 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10730 self.selections
10731 .disjoint_anchors()
10732 .into_iter()
10733 .map(|selection| selection.range()),
10734 ) {
10735 let buffer_id = buffer_snapshot.remote_id();
10736 if unfolded_buffers.insert(buffer_id) {
10737 self.unfold_buffer(buffer_id, cx);
10738 }
10739 }
10740 }
10741 }
10742
10743 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10744 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10745 let selections = self.selections.all::<Point>(cx);
10746 let ranges = selections
10747 .iter()
10748 .map(|s| {
10749 let mut range = s.display_range(&display_map).sorted();
10750 *range.start.column_mut() = 0;
10751 *range.end.column_mut() = display_map.line_len(range.end.row());
10752 let start = range.start.to_point(&display_map);
10753 let end = range.end.to_point(&display_map);
10754 start..end
10755 })
10756 .collect::<Vec<_>>();
10757
10758 self.unfold_ranges(&ranges, true, true, cx);
10759 }
10760
10761 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10762 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10763
10764 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10765 ..Point::new(
10766 unfold_at.buffer_row.0,
10767 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10768 );
10769
10770 let autoscroll = self
10771 .selections
10772 .all::<Point>(cx)
10773 .iter()
10774 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10775
10776 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
10777 }
10778
10779 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10780 if self.buffer.read(cx).is_singleton() {
10781 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10782 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
10783 } else {
10784 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10785 editor
10786 .update(&mut cx, |editor, cx| {
10787 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10788 editor.unfold_buffer(buffer_id, cx);
10789 }
10790 })
10791 .ok();
10792 });
10793 }
10794 }
10795
10796 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10797 let selections = self.selections.all::<Point>(cx);
10798 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10799 let line_mode = self.selections.line_mode;
10800 let ranges = selections
10801 .into_iter()
10802 .map(|s| {
10803 if line_mode {
10804 let start = Point::new(s.start.row, 0);
10805 let end = Point::new(
10806 s.end.row,
10807 display_map
10808 .buffer_snapshot
10809 .line_len(MultiBufferRow(s.end.row)),
10810 );
10811 Crease::simple(start..end, display_map.fold_placeholder.clone())
10812 } else {
10813 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
10814 }
10815 })
10816 .collect::<Vec<_>>();
10817 self.fold_creases(ranges, true, cx);
10818 }
10819
10820 pub fn fold_creases<T: ToOffset + Clone>(
10821 &mut self,
10822 creases: Vec<Crease<T>>,
10823 auto_scroll: bool,
10824 cx: &mut ViewContext<Self>,
10825 ) {
10826 if creases.is_empty() {
10827 return;
10828 }
10829
10830 let mut buffers_affected = HashSet::default();
10831 let multi_buffer = self.buffer().read(cx);
10832 for crease in &creases {
10833 if let Some((_, buffer, _)) =
10834 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
10835 {
10836 buffers_affected.insert(buffer.read(cx).remote_id());
10837 };
10838 }
10839
10840 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
10841
10842 if auto_scroll {
10843 self.request_autoscroll(Autoscroll::fit(), cx);
10844 }
10845
10846 for buffer_id in buffers_affected {
10847 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10848 }
10849
10850 cx.notify();
10851
10852 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10853 // Clear diagnostics block when folding a range that contains it.
10854 let snapshot = self.snapshot(cx);
10855 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10856 drop(snapshot);
10857 self.active_diagnostics = Some(active_diagnostics);
10858 self.dismiss_diagnostics(cx);
10859 } else {
10860 self.active_diagnostics = Some(active_diagnostics);
10861 }
10862 }
10863
10864 self.scrollbar_marker_state.dirty = true;
10865 }
10866
10867 /// Removes any folds whose ranges intersect any of the given ranges.
10868 pub fn unfold_ranges<T: ToOffset + Clone>(
10869 &mut self,
10870 ranges: &[Range<T>],
10871 inclusive: bool,
10872 auto_scroll: bool,
10873 cx: &mut ViewContext<Self>,
10874 ) {
10875 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10876 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
10877 });
10878 }
10879
10880 pub fn fold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10881 if self.buffer().read(cx).is_singleton() || self.buffer_folded(buffer_id, cx) {
10882 return;
10883 }
10884 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10885 return;
10886 };
10887 let folded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10888 self.display_map
10889 .update(cx, |display_map, cx| display_map.fold_buffer(buffer_id, cx));
10890 cx.emit(EditorEvent::BufferFoldToggled {
10891 ids: folded_excerpts.iter().map(|&(id, _)| id).collect(),
10892 folded: true,
10893 });
10894 cx.notify();
10895 }
10896
10897 pub fn unfold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10898 if self.buffer().read(cx).is_singleton() || !self.buffer_folded(buffer_id, cx) {
10899 return;
10900 }
10901 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10902 return;
10903 };
10904 let unfolded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10905 self.display_map.update(cx, |display_map, cx| {
10906 display_map.unfold_buffer(buffer_id, cx);
10907 });
10908 cx.emit(EditorEvent::BufferFoldToggled {
10909 ids: unfolded_excerpts.iter().map(|&(id, _)| id).collect(),
10910 folded: false,
10911 });
10912 cx.notify();
10913 }
10914
10915 pub fn buffer_folded(&self, buffer: BufferId, cx: &AppContext) -> bool {
10916 self.display_map.read(cx).buffer_folded(buffer)
10917 }
10918
10919 /// Removes any folds with the given ranges.
10920 pub fn remove_folds_with_type<T: ToOffset + Clone>(
10921 &mut self,
10922 ranges: &[Range<T>],
10923 type_id: TypeId,
10924 auto_scroll: bool,
10925 cx: &mut ViewContext<Self>,
10926 ) {
10927 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10928 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
10929 });
10930 }
10931
10932 fn remove_folds_with<T: ToOffset + Clone>(
10933 &mut self,
10934 ranges: &[Range<T>],
10935 auto_scroll: bool,
10936 cx: &mut ViewContext<Self>,
10937 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
10938 ) {
10939 if ranges.is_empty() {
10940 return;
10941 }
10942
10943 let mut buffers_affected = HashSet::default();
10944 let multi_buffer = self.buffer().read(cx);
10945 for range in ranges {
10946 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10947 buffers_affected.insert(buffer.read(cx).remote_id());
10948 };
10949 }
10950
10951 self.display_map.update(cx, update);
10952
10953 if auto_scroll {
10954 self.request_autoscroll(Autoscroll::fit(), cx);
10955 }
10956
10957 for buffer_id in buffers_affected {
10958 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10959 }
10960
10961 cx.notify();
10962 self.scrollbar_marker_state.dirty = true;
10963 self.active_indent_guides_state.dirty = true;
10964 }
10965
10966 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
10967 self.display_map.read(cx).fold_placeholder.clone()
10968 }
10969
10970 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10971 if hovered != self.gutter_hovered {
10972 self.gutter_hovered = hovered;
10973 cx.notify();
10974 }
10975 }
10976
10977 pub fn insert_blocks(
10978 &mut self,
10979 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
10980 autoscroll: Option<Autoscroll>,
10981 cx: &mut ViewContext<Self>,
10982 ) -> Vec<CustomBlockId> {
10983 let blocks = self
10984 .display_map
10985 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
10986 if let Some(autoscroll) = autoscroll {
10987 self.request_autoscroll(autoscroll, cx);
10988 }
10989 cx.notify();
10990 blocks
10991 }
10992
10993 pub fn resize_blocks(
10994 &mut self,
10995 heights: HashMap<CustomBlockId, u32>,
10996 autoscroll: Option<Autoscroll>,
10997 cx: &mut ViewContext<Self>,
10998 ) {
10999 self.display_map
11000 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11001 if let Some(autoscroll) = autoscroll {
11002 self.request_autoscroll(autoscroll, cx);
11003 }
11004 cx.notify();
11005 }
11006
11007 pub fn replace_blocks(
11008 &mut self,
11009 renderers: HashMap<CustomBlockId, RenderBlock>,
11010 autoscroll: Option<Autoscroll>,
11011 cx: &mut ViewContext<Self>,
11012 ) {
11013 self.display_map
11014 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11015 if let Some(autoscroll) = autoscroll {
11016 self.request_autoscroll(autoscroll, cx);
11017 }
11018 cx.notify();
11019 }
11020
11021 pub fn remove_blocks(
11022 &mut self,
11023 block_ids: HashSet<CustomBlockId>,
11024 autoscroll: Option<Autoscroll>,
11025 cx: &mut ViewContext<Self>,
11026 ) {
11027 self.display_map.update(cx, |display_map, cx| {
11028 display_map.remove_blocks(block_ids, cx)
11029 });
11030 if let Some(autoscroll) = autoscroll {
11031 self.request_autoscroll(autoscroll, cx);
11032 }
11033 cx.notify();
11034 }
11035
11036 pub fn row_for_block(
11037 &self,
11038 block_id: CustomBlockId,
11039 cx: &mut ViewContext<Self>,
11040 ) -> Option<DisplayRow> {
11041 self.display_map
11042 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11043 }
11044
11045 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11046 self.focused_block = Some(focused_block);
11047 }
11048
11049 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11050 self.focused_block.take()
11051 }
11052
11053 pub fn insert_creases(
11054 &mut self,
11055 creases: impl IntoIterator<Item = Crease<Anchor>>,
11056 cx: &mut ViewContext<Self>,
11057 ) -> Vec<CreaseId> {
11058 self.display_map
11059 .update(cx, |map, cx| map.insert_creases(creases, cx))
11060 }
11061
11062 pub fn remove_creases(
11063 &mut self,
11064 ids: impl IntoIterator<Item = CreaseId>,
11065 cx: &mut ViewContext<Self>,
11066 ) {
11067 self.display_map
11068 .update(cx, |map, cx| map.remove_creases(ids, cx));
11069 }
11070
11071 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11072 self.display_map
11073 .update(cx, |map, cx| map.snapshot(cx))
11074 .longest_row()
11075 }
11076
11077 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11078 self.display_map
11079 .update(cx, |map, cx| map.snapshot(cx))
11080 .max_point()
11081 }
11082
11083 pub fn text(&self, cx: &AppContext) -> String {
11084 self.buffer.read(cx).read(cx).text()
11085 }
11086
11087 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11088 let text = self.text(cx);
11089 let text = text.trim();
11090
11091 if text.is_empty() {
11092 return None;
11093 }
11094
11095 Some(text.to_string())
11096 }
11097
11098 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11099 self.transact(cx, |this, cx| {
11100 this.buffer
11101 .read(cx)
11102 .as_singleton()
11103 .expect("you can only call set_text on editors for singleton buffers")
11104 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11105 });
11106 }
11107
11108 pub fn display_text(&self, cx: &mut AppContext) -> String {
11109 self.display_map
11110 .update(cx, |map, cx| map.snapshot(cx))
11111 .text()
11112 }
11113
11114 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11115 let mut wrap_guides = smallvec::smallvec![];
11116
11117 if self.show_wrap_guides == Some(false) {
11118 return wrap_guides;
11119 }
11120
11121 let settings = self.buffer.read(cx).settings_at(0, cx);
11122 if settings.show_wrap_guides {
11123 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11124 wrap_guides.push((soft_wrap as usize, true));
11125 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11126 wrap_guides.push((soft_wrap as usize, true));
11127 }
11128 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11129 }
11130
11131 wrap_guides
11132 }
11133
11134 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11135 let settings = self.buffer.read(cx).settings_at(0, cx);
11136 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11137 match mode {
11138 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11139 SoftWrap::None
11140 }
11141 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11142 language_settings::SoftWrap::PreferredLineLength => {
11143 SoftWrap::Column(settings.preferred_line_length)
11144 }
11145 language_settings::SoftWrap::Bounded => {
11146 SoftWrap::Bounded(settings.preferred_line_length)
11147 }
11148 }
11149 }
11150
11151 pub fn set_soft_wrap_mode(
11152 &mut self,
11153 mode: language_settings::SoftWrap,
11154 cx: &mut ViewContext<Self>,
11155 ) {
11156 self.soft_wrap_mode_override = Some(mode);
11157 cx.notify();
11158 }
11159
11160 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11161 self.text_style_refinement = Some(style);
11162 }
11163
11164 /// called by the Element so we know what style we were most recently rendered with.
11165 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11166 let rem_size = cx.rem_size();
11167 self.display_map.update(cx, |map, cx| {
11168 map.set_font(
11169 style.text.font(),
11170 style.text.font_size.to_pixels(rem_size),
11171 cx,
11172 )
11173 });
11174 self.style = Some(style);
11175 }
11176
11177 pub fn style(&self) -> Option<&EditorStyle> {
11178 self.style.as_ref()
11179 }
11180
11181 // Called by the element. This method is not designed to be called outside of the editor
11182 // element's layout code because it does not notify when rewrapping is computed synchronously.
11183 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11184 self.display_map
11185 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11186 }
11187
11188 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11189 if self.soft_wrap_mode_override.is_some() {
11190 self.soft_wrap_mode_override.take();
11191 } else {
11192 let soft_wrap = match self.soft_wrap_mode(cx) {
11193 SoftWrap::GitDiff => return,
11194 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11195 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11196 language_settings::SoftWrap::None
11197 }
11198 };
11199 self.soft_wrap_mode_override = Some(soft_wrap);
11200 }
11201 cx.notify();
11202 }
11203
11204 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11205 let Some(workspace) = self.workspace() else {
11206 return;
11207 };
11208 let fs = workspace.read(cx).app_state().fs.clone();
11209 let current_show = TabBarSettings::get_global(cx).show;
11210 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11211 setting.show = Some(!current_show);
11212 });
11213 }
11214
11215 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11216 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11217 self.buffer
11218 .read(cx)
11219 .settings_at(0, cx)
11220 .indent_guides
11221 .enabled
11222 });
11223 self.show_indent_guides = Some(!currently_enabled);
11224 cx.notify();
11225 }
11226
11227 fn should_show_indent_guides(&self) -> Option<bool> {
11228 self.show_indent_guides
11229 }
11230
11231 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11232 let mut editor_settings = EditorSettings::get_global(cx).clone();
11233 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11234 EditorSettings::override_global(editor_settings, cx);
11235 }
11236
11237 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11238 self.use_relative_line_numbers
11239 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11240 }
11241
11242 pub fn toggle_relative_line_numbers(
11243 &mut self,
11244 _: &ToggleRelativeLineNumbers,
11245 cx: &mut ViewContext<Self>,
11246 ) {
11247 let is_relative = self.should_use_relative_line_numbers(cx);
11248 self.set_relative_line_number(Some(!is_relative), cx)
11249 }
11250
11251 pub fn set_relative_line_number(
11252 &mut self,
11253 is_relative: Option<bool>,
11254 cx: &mut ViewContext<Self>,
11255 ) {
11256 self.use_relative_line_numbers = is_relative;
11257 cx.notify();
11258 }
11259
11260 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11261 self.show_gutter = show_gutter;
11262 cx.notify();
11263 }
11264
11265 pub fn set_show_scrollbars(&mut self, show_scrollbars: bool, cx: &mut ViewContext<Self>) {
11266 self.show_scrollbars = show_scrollbars;
11267 cx.notify();
11268 }
11269
11270 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11271 self.show_line_numbers = Some(show_line_numbers);
11272 cx.notify();
11273 }
11274
11275 pub fn set_show_git_diff_gutter(
11276 &mut self,
11277 show_git_diff_gutter: bool,
11278 cx: &mut ViewContext<Self>,
11279 ) {
11280 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11281 cx.notify();
11282 }
11283
11284 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11285 self.show_code_actions = Some(show_code_actions);
11286 cx.notify();
11287 }
11288
11289 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11290 self.show_runnables = Some(show_runnables);
11291 cx.notify();
11292 }
11293
11294 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11295 if self.display_map.read(cx).masked != masked {
11296 self.display_map.update(cx, |map, _| map.masked = masked);
11297 }
11298 cx.notify()
11299 }
11300
11301 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11302 self.show_wrap_guides = Some(show_wrap_guides);
11303 cx.notify();
11304 }
11305
11306 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11307 self.show_indent_guides = Some(show_indent_guides);
11308 cx.notify();
11309 }
11310
11311 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11312 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11313 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11314 if let Some(dir) = file.abs_path(cx).parent() {
11315 return Some(dir.to_owned());
11316 }
11317 }
11318
11319 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11320 return Some(project_path.path.to_path_buf());
11321 }
11322 }
11323
11324 None
11325 }
11326
11327 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11328 self.active_excerpt(cx)?
11329 .1
11330 .read(cx)
11331 .file()
11332 .and_then(|f| f.as_local())
11333 }
11334
11335 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11336 if let Some(target) = self.target_file(cx) {
11337 cx.reveal_path(&target.abs_path(cx));
11338 }
11339 }
11340
11341 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11342 if let Some(file) = self.target_file(cx) {
11343 if let Some(path) = file.abs_path(cx).to_str() {
11344 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11345 }
11346 }
11347 }
11348
11349 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11350 if let Some(file) = self.target_file(cx) {
11351 if let Some(path) = file.path().to_str() {
11352 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11353 }
11354 }
11355 }
11356
11357 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11358 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11359
11360 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11361 self.start_git_blame(true, cx);
11362 }
11363
11364 cx.notify();
11365 }
11366
11367 pub fn toggle_git_blame_inline(
11368 &mut self,
11369 _: &ToggleGitBlameInline,
11370 cx: &mut ViewContext<Self>,
11371 ) {
11372 self.toggle_git_blame_inline_internal(true, cx);
11373 cx.notify();
11374 }
11375
11376 pub fn git_blame_inline_enabled(&self) -> bool {
11377 self.git_blame_inline_enabled
11378 }
11379
11380 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11381 self.show_selection_menu = self
11382 .show_selection_menu
11383 .map(|show_selections_menu| !show_selections_menu)
11384 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11385
11386 cx.notify();
11387 }
11388
11389 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11390 self.show_selection_menu
11391 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11392 }
11393
11394 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11395 if let Some(project) = self.project.as_ref() {
11396 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11397 return;
11398 };
11399
11400 if buffer.read(cx).file().is_none() {
11401 return;
11402 }
11403
11404 let focused = self.focus_handle(cx).contains_focused(cx);
11405
11406 let project = project.clone();
11407 let blame =
11408 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11409 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11410 self.blame = Some(blame);
11411 }
11412 }
11413
11414 fn toggle_git_blame_inline_internal(
11415 &mut self,
11416 user_triggered: bool,
11417 cx: &mut ViewContext<Self>,
11418 ) {
11419 if self.git_blame_inline_enabled {
11420 self.git_blame_inline_enabled = false;
11421 self.show_git_blame_inline = false;
11422 self.show_git_blame_inline_delay_task.take();
11423 } else {
11424 self.git_blame_inline_enabled = true;
11425 self.start_git_blame_inline(user_triggered, cx);
11426 }
11427
11428 cx.notify();
11429 }
11430
11431 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11432 self.start_git_blame(user_triggered, cx);
11433
11434 if ProjectSettings::get_global(cx)
11435 .git
11436 .inline_blame_delay()
11437 .is_some()
11438 {
11439 self.start_inline_blame_timer(cx);
11440 } else {
11441 self.show_git_blame_inline = true
11442 }
11443 }
11444
11445 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11446 self.blame.as_ref()
11447 }
11448
11449 pub fn show_git_blame_gutter(&self) -> bool {
11450 self.show_git_blame_gutter
11451 }
11452
11453 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11454 self.show_git_blame_gutter && self.has_blame_entries(cx)
11455 }
11456
11457 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11458 self.show_git_blame_inline
11459 && self.focus_handle.is_focused(cx)
11460 && !self.newest_selection_head_on_empty_line(cx)
11461 && self.has_blame_entries(cx)
11462 }
11463
11464 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11465 self.blame()
11466 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11467 }
11468
11469 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11470 let cursor_anchor = self.selections.newest_anchor().head();
11471
11472 let snapshot = self.buffer.read(cx).snapshot(cx);
11473 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11474
11475 snapshot.line_len(buffer_row) == 0
11476 }
11477
11478 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11479 let buffer_and_selection = maybe!({
11480 let selection = self.selections.newest::<Point>(cx);
11481 let selection_range = selection.range();
11482
11483 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11484 (buffer, selection_range.start.row..selection_range.end.row)
11485 } else {
11486 let buffer_ranges = self
11487 .buffer()
11488 .read(cx)
11489 .range_to_buffer_ranges(selection_range, cx);
11490
11491 let (buffer, range, _) = if selection.reversed {
11492 buffer_ranges.first()
11493 } else {
11494 buffer_ranges.last()
11495 }?;
11496
11497 let snapshot = buffer.read(cx).snapshot();
11498 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11499 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11500 (buffer.clone(), selection)
11501 };
11502
11503 Some((buffer, selection))
11504 });
11505
11506 let Some((buffer, selection)) = buffer_and_selection else {
11507 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11508 };
11509
11510 let Some(project) = self.project.as_ref() else {
11511 return Task::ready(Err(anyhow!("editor does not have project")));
11512 };
11513
11514 project.update(cx, |project, cx| {
11515 project.get_permalink_to_line(&buffer, selection, cx)
11516 })
11517 }
11518
11519 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11520 let permalink_task = self.get_permalink_to_line(cx);
11521 let workspace = self.workspace();
11522
11523 cx.spawn(|_, mut cx| async move {
11524 match permalink_task.await {
11525 Ok(permalink) => {
11526 cx.update(|cx| {
11527 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11528 })
11529 .ok();
11530 }
11531 Err(err) => {
11532 let message = format!("Failed to copy permalink: {err}");
11533
11534 Err::<(), anyhow::Error>(err).log_err();
11535
11536 if let Some(workspace) = workspace {
11537 workspace
11538 .update(&mut cx, |workspace, cx| {
11539 struct CopyPermalinkToLine;
11540
11541 workspace.show_toast(
11542 Toast::new(
11543 NotificationId::unique::<CopyPermalinkToLine>(),
11544 message,
11545 ),
11546 cx,
11547 )
11548 })
11549 .ok();
11550 }
11551 }
11552 }
11553 })
11554 .detach();
11555 }
11556
11557 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11558 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11559 if let Some(file) = self.target_file(cx) {
11560 if let Some(path) = file.path().to_str() {
11561 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11562 }
11563 }
11564 }
11565
11566 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11567 let permalink_task = self.get_permalink_to_line(cx);
11568 let workspace = self.workspace();
11569
11570 cx.spawn(|_, mut cx| async move {
11571 match permalink_task.await {
11572 Ok(permalink) => {
11573 cx.update(|cx| {
11574 cx.open_url(permalink.as_ref());
11575 })
11576 .ok();
11577 }
11578 Err(err) => {
11579 let message = format!("Failed to open permalink: {err}");
11580
11581 Err::<(), anyhow::Error>(err).log_err();
11582
11583 if let Some(workspace) = workspace {
11584 workspace
11585 .update(&mut cx, |workspace, cx| {
11586 struct OpenPermalinkToLine;
11587
11588 workspace.show_toast(
11589 Toast::new(
11590 NotificationId::unique::<OpenPermalinkToLine>(),
11591 message,
11592 ),
11593 cx,
11594 )
11595 })
11596 .ok();
11597 }
11598 }
11599 }
11600 })
11601 .detach();
11602 }
11603
11604 pub fn insert_uuid_v4(&mut self, _: &InsertUuidV4, cx: &mut ViewContext<Self>) {
11605 self.insert_uuid(UuidVersion::V4, cx);
11606 }
11607
11608 pub fn insert_uuid_v7(&mut self, _: &InsertUuidV7, cx: &mut ViewContext<Self>) {
11609 self.insert_uuid(UuidVersion::V7, cx);
11610 }
11611
11612 fn insert_uuid(&mut self, version: UuidVersion, cx: &mut ViewContext<Self>) {
11613 self.transact(cx, |this, cx| {
11614 let edits = this
11615 .selections
11616 .all::<Point>(cx)
11617 .into_iter()
11618 .map(|selection| {
11619 let uuid = match version {
11620 UuidVersion::V4 => uuid::Uuid::new_v4(),
11621 UuidVersion::V7 => uuid::Uuid::now_v7(),
11622 };
11623
11624 (selection.range(), uuid.to_string())
11625 });
11626 this.edit(edits, cx);
11627 this.refresh_inline_completion(true, false, cx);
11628 });
11629 }
11630
11631 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11632 /// last highlight added will be used.
11633 ///
11634 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11635 pub fn highlight_rows<T: 'static>(
11636 &mut self,
11637 range: Range<Anchor>,
11638 color: Hsla,
11639 should_autoscroll: bool,
11640 cx: &mut ViewContext<Self>,
11641 ) {
11642 let snapshot = self.buffer().read(cx).snapshot(cx);
11643 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11644 let ix = row_highlights.binary_search_by(|highlight| {
11645 Ordering::Equal
11646 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11647 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11648 });
11649
11650 if let Err(mut ix) = ix {
11651 let index = post_inc(&mut self.highlight_order);
11652
11653 // If this range intersects with the preceding highlight, then merge it with
11654 // the preceding highlight. Otherwise insert a new highlight.
11655 let mut merged = false;
11656 if ix > 0 {
11657 let prev_highlight = &mut row_highlights[ix - 1];
11658 if prev_highlight
11659 .range
11660 .end
11661 .cmp(&range.start, &snapshot)
11662 .is_ge()
11663 {
11664 ix -= 1;
11665 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11666 prev_highlight.range.end = range.end;
11667 }
11668 merged = true;
11669 prev_highlight.index = index;
11670 prev_highlight.color = color;
11671 prev_highlight.should_autoscroll = should_autoscroll;
11672 }
11673 }
11674
11675 if !merged {
11676 row_highlights.insert(
11677 ix,
11678 RowHighlight {
11679 range: range.clone(),
11680 index,
11681 color,
11682 should_autoscroll,
11683 },
11684 );
11685 }
11686
11687 // If any of the following highlights intersect with this one, merge them.
11688 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11689 let highlight = &row_highlights[ix];
11690 if next_highlight
11691 .range
11692 .start
11693 .cmp(&highlight.range.end, &snapshot)
11694 .is_le()
11695 {
11696 if next_highlight
11697 .range
11698 .end
11699 .cmp(&highlight.range.end, &snapshot)
11700 .is_gt()
11701 {
11702 row_highlights[ix].range.end = next_highlight.range.end;
11703 }
11704 row_highlights.remove(ix + 1);
11705 } else {
11706 break;
11707 }
11708 }
11709 }
11710 }
11711
11712 /// Remove any highlighted row ranges of the given type that intersect the
11713 /// given ranges.
11714 pub fn remove_highlighted_rows<T: 'static>(
11715 &mut self,
11716 ranges_to_remove: Vec<Range<Anchor>>,
11717 cx: &mut ViewContext<Self>,
11718 ) {
11719 let snapshot = self.buffer().read(cx).snapshot(cx);
11720 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11721 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11722 row_highlights.retain(|highlight| {
11723 while let Some(range_to_remove) = ranges_to_remove.peek() {
11724 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11725 Ordering::Less | Ordering::Equal => {
11726 ranges_to_remove.next();
11727 }
11728 Ordering::Greater => {
11729 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11730 Ordering::Less | Ordering::Equal => {
11731 return false;
11732 }
11733 Ordering::Greater => break,
11734 }
11735 }
11736 }
11737 }
11738
11739 true
11740 })
11741 }
11742
11743 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11744 pub fn clear_row_highlights<T: 'static>(&mut self) {
11745 self.highlighted_rows.remove(&TypeId::of::<T>());
11746 }
11747
11748 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11749 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11750 self.highlighted_rows
11751 .get(&TypeId::of::<T>())
11752 .map_or(&[] as &[_], |vec| vec.as_slice())
11753 .iter()
11754 .map(|highlight| (highlight.range.clone(), highlight.color))
11755 }
11756
11757 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11758 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11759 /// Allows to ignore certain kinds of highlights.
11760 pub fn highlighted_display_rows(
11761 &mut self,
11762 cx: &mut WindowContext,
11763 ) -> BTreeMap<DisplayRow, Hsla> {
11764 let snapshot = self.snapshot(cx);
11765 let mut used_highlight_orders = HashMap::default();
11766 self.highlighted_rows
11767 .iter()
11768 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11769 .fold(
11770 BTreeMap::<DisplayRow, Hsla>::new(),
11771 |mut unique_rows, highlight| {
11772 let start = highlight.range.start.to_display_point(&snapshot);
11773 let end = highlight.range.end.to_display_point(&snapshot);
11774 let start_row = start.row().0;
11775 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11776 && end.column() == 0
11777 {
11778 end.row().0.saturating_sub(1)
11779 } else {
11780 end.row().0
11781 };
11782 for row in start_row..=end_row {
11783 let used_index =
11784 used_highlight_orders.entry(row).or_insert(highlight.index);
11785 if highlight.index >= *used_index {
11786 *used_index = highlight.index;
11787 unique_rows.insert(DisplayRow(row), highlight.color);
11788 }
11789 }
11790 unique_rows
11791 },
11792 )
11793 }
11794
11795 pub fn highlighted_display_row_for_autoscroll(
11796 &self,
11797 snapshot: &DisplaySnapshot,
11798 ) -> Option<DisplayRow> {
11799 self.highlighted_rows
11800 .values()
11801 .flat_map(|highlighted_rows| highlighted_rows.iter())
11802 .filter_map(|highlight| {
11803 if highlight.should_autoscroll {
11804 Some(highlight.range.start.to_display_point(snapshot).row())
11805 } else {
11806 None
11807 }
11808 })
11809 .min()
11810 }
11811
11812 pub fn set_search_within_ranges(
11813 &mut self,
11814 ranges: &[Range<Anchor>],
11815 cx: &mut ViewContext<Self>,
11816 ) {
11817 self.highlight_background::<SearchWithinRange>(
11818 ranges,
11819 |colors| colors.editor_document_highlight_read_background,
11820 cx,
11821 )
11822 }
11823
11824 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11825 self.breadcrumb_header = Some(new_header);
11826 }
11827
11828 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11829 self.clear_background_highlights::<SearchWithinRange>(cx);
11830 }
11831
11832 pub fn highlight_background<T: 'static>(
11833 &mut self,
11834 ranges: &[Range<Anchor>],
11835 color_fetcher: fn(&ThemeColors) -> Hsla,
11836 cx: &mut ViewContext<Self>,
11837 ) {
11838 self.background_highlights
11839 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11840 self.scrollbar_marker_state.dirty = true;
11841 cx.notify();
11842 }
11843
11844 pub fn clear_background_highlights<T: 'static>(
11845 &mut self,
11846 cx: &mut ViewContext<Self>,
11847 ) -> Option<BackgroundHighlight> {
11848 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11849 if !text_highlights.1.is_empty() {
11850 self.scrollbar_marker_state.dirty = true;
11851 cx.notify();
11852 }
11853 Some(text_highlights)
11854 }
11855
11856 pub fn highlight_gutter<T: 'static>(
11857 &mut self,
11858 ranges: &[Range<Anchor>],
11859 color_fetcher: fn(&AppContext) -> Hsla,
11860 cx: &mut ViewContext<Self>,
11861 ) {
11862 self.gutter_highlights
11863 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11864 cx.notify();
11865 }
11866
11867 pub fn clear_gutter_highlights<T: 'static>(
11868 &mut self,
11869 cx: &mut ViewContext<Self>,
11870 ) -> Option<GutterHighlight> {
11871 cx.notify();
11872 self.gutter_highlights.remove(&TypeId::of::<T>())
11873 }
11874
11875 #[cfg(feature = "test-support")]
11876 pub fn all_text_background_highlights(
11877 &mut self,
11878 cx: &mut ViewContext<Self>,
11879 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11880 let snapshot = self.snapshot(cx);
11881 let buffer = &snapshot.buffer_snapshot;
11882 let start = buffer.anchor_before(0);
11883 let end = buffer.anchor_after(buffer.len());
11884 let theme = cx.theme().colors();
11885 self.background_highlights_in_range(start..end, &snapshot, theme)
11886 }
11887
11888 #[cfg(feature = "test-support")]
11889 pub fn search_background_highlights(
11890 &mut self,
11891 cx: &mut ViewContext<Self>,
11892 ) -> Vec<Range<Point>> {
11893 let snapshot = self.buffer().read(cx).snapshot(cx);
11894
11895 let highlights = self
11896 .background_highlights
11897 .get(&TypeId::of::<items::BufferSearchHighlights>());
11898
11899 if let Some((_color, ranges)) = highlights {
11900 ranges
11901 .iter()
11902 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11903 .collect_vec()
11904 } else {
11905 vec![]
11906 }
11907 }
11908
11909 fn document_highlights_for_position<'a>(
11910 &'a self,
11911 position: Anchor,
11912 buffer: &'a MultiBufferSnapshot,
11913 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11914 let read_highlights = self
11915 .background_highlights
11916 .get(&TypeId::of::<DocumentHighlightRead>())
11917 .map(|h| &h.1);
11918 let write_highlights = self
11919 .background_highlights
11920 .get(&TypeId::of::<DocumentHighlightWrite>())
11921 .map(|h| &h.1);
11922 let left_position = position.bias_left(buffer);
11923 let right_position = position.bias_right(buffer);
11924 read_highlights
11925 .into_iter()
11926 .chain(write_highlights)
11927 .flat_map(move |ranges| {
11928 let start_ix = match ranges.binary_search_by(|probe| {
11929 let cmp = probe.end.cmp(&left_position, buffer);
11930 if cmp.is_ge() {
11931 Ordering::Greater
11932 } else {
11933 Ordering::Less
11934 }
11935 }) {
11936 Ok(i) | Err(i) => i,
11937 };
11938
11939 ranges[start_ix..]
11940 .iter()
11941 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11942 })
11943 }
11944
11945 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11946 self.background_highlights
11947 .get(&TypeId::of::<T>())
11948 .map_or(false, |(_, highlights)| !highlights.is_empty())
11949 }
11950
11951 pub fn background_highlights_in_range(
11952 &self,
11953 search_range: Range<Anchor>,
11954 display_snapshot: &DisplaySnapshot,
11955 theme: &ThemeColors,
11956 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11957 let mut results = Vec::new();
11958 for (color_fetcher, ranges) in self.background_highlights.values() {
11959 let color = color_fetcher(theme);
11960 let start_ix = match ranges.binary_search_by(|probe| {
11961 let cmp = probe
11962 .end
11963 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11964 if cmp.is_gt() {
11965 Ordering::Greater
11966 } else {
11967 Ordering::Less
11968 }
11969 }) {
11970 Ok(i) | Err(i) => i,
11971 };
11972 for range in &ranges[start_ix..] {
11973 if range
11974 .start
11975 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11976 .is_ge()
11977 {
11978 break;
11979 }
11980
11981 let start = range.start.to_display_point(display_snapshot);
11982 let end = range.end.to_display_point(display_snapshot);
11983 results.push((start..end, color))
11984 }
11985 }
11986 results
11987 }
11988
11989 pub fn background_highlight_row_ranges<T: 'static>(
11990 &self,
11991 search_range: Range<Anchor>,
11992 display_snapshot: &DisplaySnapshot,
11993 count: usize,
11994 ) -> Vec<RangeInclusive<DisplayPoint>> {
11995 let mut results = Vec::new();
11996 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
11997 return vec![];
11998 };
11999
12000 let start_ix = match ranges.binary_search_by(|probe| {
12001 let cmp = probe
12002 .end
12003 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12004 if cmp.is_gt() {
12005 Ordering::Greater
12006 } else {
12007 Ordering::Less
12008 }
12009 }) {
12010 Ok(i) | Err(i) => i,
12011 };
12012 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12013 if let (Some(start_display), Some(end_display)) = (start, end) {
12014 results.push(
12015 start_display.to_display_point(display_snapshot)
12016 ..=end_display.to_display_point(display_snapshot),
12017 );
12018 }
12019 };
12020 let mut start_row: Option<Point> = None;
12021 let mut end_row: Option<Point> = None;
12022 if ranges.len() > count {
12023 return Vec::new();
12024 }
12025 for range in &ranges[start_ix..] {
12026 if range
12027 .start
12028 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12029 .is_ge()
12030 {
12031 break;
12032 }
12033 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12034 if let Some(current_row) = &end_row {
12035 if end.row == current_row.row {
12036 continue;
12037 }
12038 }
12039 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12040 if start_row.is_none() {
12041 assert_eq!(end_row, None);
12042 start_row = Some(start);
12043 end_row = Some(end);
12044 continue;
12045 }
12046 if let Some(current_end) = end_row.as_mut() {
12047 if start.row > current_end.row + 1 {
12048 push_region(start_row, end_row);
12049 start_row = Some(start);
12050 end_row = Some(end);
12051 } else {
12052 // Merge two hunks.
12053 *current_end = end;
12054 }
12055 } else {
12056 unreachable!();
12057 }
12058 }
12059 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12060 push_region(start_row, end_row);
12061 results
12062 }
12063
12064 pub fn gutter_highlights_in_range(
12065 &self,
12066 search_range: Range<Anchor>,
12067 display_snapshot: &DisplaySnapshot,
12068 cx: &AppContext,
12069 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12070 let mut results = Vec::new();
12071 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12072 let color = color_fetcher(cx);
12073 let start_ix = match ranges.binary_search_by(|probe| {
12074 let cmp = probe
12075 .end
12076 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12077 if cmp.is_gt() {
12078 Ordering::Greater
12079 } else {
12080 Ordering::Less
12081 }
12082 }) {
12083 Ok(i) | Err(i) => i,
12084 };
12085 for range in &ranges[start_ix..] {
12086 if range
12087 .start
12088 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12089 .is_ge()
12090 {
12091 break;
12092 }
12093
12094 let start = range.start.to_display_point(display_snapshot);
12095 let end = range.end.to_display_point(display_snapshot);
12096 results.push((start..end, color))
12097 }
12098 }
12099 results
12100 }
12101
12102 /// Get the text ranges corresponding to the redaction query
12103 pub fn redacted_ranges(
12104 &self,
12105 search_range: Range<Anchor>,
12106 display_snapshot: &DisplaySnapshot,
12107 cx: &WindowContext,
12108 ) -> Vec<Range<DisplayPoint>> {
12109 display_snapshot
12110 .buffer_snapshot
12111 .redacted_ranges(search_range, |file| {
12112 if let Some(file) = file {
12113 file.is_private()
12114 && EditorSettings::get(
12115 Some(SettingsLocation {
12116 worktree_id: file.worktree_id(cx),
12117 path: file.path().as_ref(),
12118 }),
12119 cx,
12120 )
12121 .redact_private_values
12122 } else {
12123 false
12124 }
12125 })
12126 .map(|range| {
12127 range.start.to_display_point(display_snapshot)
12128 ..range.end.to_display_point(display_snapshot)
12129 })
12130 .collect()
12131 }
12132
12133 pub fn highlight_text<T: 'static>(
12134 &mut self,
12135 ranges: Vec<Range<Anchor>>,
12136 style: HighlightStyle,
12137 cx: &mut ViewContext<Self>,
12138 ) {
12139 self.display_map.update(cx, |map, _| {
12140 map.highlight_text(TypeId::of::<T>(), ranges, style)
12141 });
12142 cx.notify();
12143 }
12144
12145 pub(crate) fn highlight_inlays<T: 'static>(
12146 &mut self,
12147 highlights: Vec<InlayHighlight>,
12148 style: HighlightStyle,
12149 cx: &mut ViewContext<Self>,
12150 ) {
12151 self.display_map.update(cx, |map, _| {
12152 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12153 });
12154 cx.notify();
12155 }
12156
12157 pub fn text_highlights<'a, T: 'static>(
12158 &'a self,
12159 cx: &'a AppContext,
12160 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12161 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12162 }
12163
12164 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12165 let cleared = self
12166 .display_map
12167 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12168 if cleared {
12169 cx.notify();
12170 }
12171 }
12172
12173 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12174 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12175 && self.focus_handle.is_focused(cx)
12176 }
12177
12178 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12179 self.show_cursor_when_unfocused = is_enabled;
12180 cx.notify();
12181 }
12182
12183 pub fn lsp_store(&self, cx: &AppContext) -> Option<Model<LspStore>> {
12184 self.project
12185 .as_ref()
12186 .map(|project| project.read(cx).lsp_store())
12187 }
12188
12189 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12190 cx.notify();
12191 }
12192
12193 fn on_buffer_event(
12194 &mut self,
12195 multibuffer: Model<MultiBuffer>,
12196 event: &multi_buffer::Event,
12197 cx: &mut ViewContext<Self>,
12198 ) {
12199 match event {
12200 multi_buffer::Event::Edited {
12201 singleton_buffer_edited,
12202 edited_buffer: buffer_edited,
12203 } => {
12204 self.scrollbar_marker_state.dirty = true;
12205 self.active_indent_guides_state.dirty = true;
12206 self.refresh_active_diagnostics(cx);
12207 self.refresh_code_actions(cx);
12208 if self.has_active_inline_completion() {
12209 self.update_visible_inline_completion(cx);
12210 }
12211 if let Some(buffer) = buffer_edited {
12212 let buffer_id = buffer.read(cx).remote_id();
12213 if !self.registered_buffers.contains_key(&buffer_id) {
12214 if let Some(lsp_store) = self.lsp_store(cx) {
12215 lsp_store.update(cx, |lsp_store, cx| {
12216 self.registered_buffers.insert(
12217 buffer_id,
12218 lsp_store.register_buffer_with_language_servers(&buffer, cx),
12219 );
12220 })
12221 }
12222 }
12223 }
12224 cx.emit(EditorEvent::BufferEdited);
12225 cx.emit(SearchEvent::MatchesInvalidated);
12226 if *singleton_buffer_edited {
12227 if let Some(project) = &self.project {
12228 let project = project.read(cx);
12229 #[allow(clippy::mutable_key_type)]
12230 let languages_affected = multibuffer
12231 .read(cx)
12232 .all_buffers()
12233 .into_iter()
12234 .filter_map(|buffer| {
12235 let buffer = buffer.read(cx);
12236 let language = buffer.language()?;
12237 if project.is_local()
12238 && project
12239 .language_servers_for_local_buffer(buffer, cx)
12240 .count()
12241 == 0
12242 {
12243 None
12244 } else {
12245 Some(language)
12246 }
12247 })
12248 .cloned()
12249 .collect::<HashSet<_>>();
12250 if !languages_affected.is_empty() {
12251 self.refresh_inlay_hints(
12252 InlayHintRefreshReason::BufferEdited(languages_affected),
12253 cx,
12254 );
12255 }
12256 }
12257 }
12258
12259 let Some(project) = &self.project else { return };
12260 let (telemetry, is_via_ssh) = {
12261 let project = project.read(cx);
12262 let telemetry = project.client().telemetry().clone();
12263 let is_via_ssh = project.is_via_ssh();
12264 (telemetry, is_via_ssh)
12265 };
12266 refresh_linked_ranges(self, cx);
12267 telemetry.log_edit_event("editor", is_via_ssh);
12268 }
12269 multi_buffer::Event::ExcerptsAdded {
12270 buffer,
12271 predecessor,
12272 excerpts,
12273 } => {
12274 self.tasks_update_task = Some(self.refresh_runnables(cx));
12275 let buffer_id = buffer.read(cx).remote_id();
12276 if !self.diff_map.diff_bases.contains_key(&buffer_id) {
12277 if let Some(project) = &self.project {
12278 get_unstaged_changes_for_buffers(project, [buffer.clone()], cx);
12279 }
12280 }
12281 cx.emit(EditorEvent::ExcerptsAdded {
12282 buffer: buffer.clone(),
12283 predecessor: *predecessor,
12284 excerpts: excerpts.clone(),
12285 });
12286 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12287 }
12288 multi_buffer::Event::ExcerptsRemoved { ids } => {
12289 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12290 let buffer = self.buffer.read(cx);
12291 self.registered_buffers
12292 .retain(|buffer_id, _| buffer.buffer(*buffer_id).is_some());
12293 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12294 }
12295 multi_buffer::Event::ExcerptsEdited { ids } => {
12296 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12297 }
12298 multi_buffer::Event::ExcerptsExpanded { ids } => {
12299 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12300 }
12301 multi_buffer::Event::Reparsed(buffer_id) => {
12302 self.tasks_update_task = Some(self.refresh_runnables(cx));
12303
12304 cx.emit(EditorEvent::Reparsed(*buffer_id));
12305 }
12306 multi_buffer::Event::LanguageChanged(buffer_id) => {
12307 linked_editing_ranges::refresh_linked_ranges(self, cx);
12308 cx.emit(EditorEvent::Reparsed(*buffer_id));
12309 cx.notify();
12310 }
12311 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12312 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12313 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12314 cx.emit(EditorEvent::TitleChanged)
12315 }
12316 // multi_buffer::Event::DiffBaseChanged => {
12317 // self.scrollbar_marker_state.dirty = true;
12318 // cx.emit(EditorEvent::DiffBaseChanged);
12319 // cx.notify();
12320 // }
12321 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12322 multi_buffer::Event::DiagnosticsUpdated => {
12323 self.refresh_active_diagnostics(cx);
12324 self.scrollbar_marker_state.dirty = true;
12325 cx.notify();
12326 }
12327 _ => {}
12328 };
12329 }
12330
12331 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12332 cx.notify();
12333 }
12334
12335 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12336 self.tasks_update_task = Some(self.refresh_runnables(cx));
12337 self.refresh_inline_completion(true, false, cx);
12338 self.refresh_inlay_hints(
12339 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12340 self.selections.newest_anchor().head(),
12341 &self.buffer.read(cx).snapshot(cx),
12342 cx,
12343 )),
12344 cx,
12345 );
12346
12347 let old_cursor_shape = self.cursor_shape;
12348
12349 {
12350 let editor_settings = EditorSettings::get_global(cx);
12351 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12352 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12353 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12354 }
12355
12356 if old_cursor_shape != self.cursor_shape {
12357 cx.emit(EditorEvent::CursorShapeChanged);
12358 }
12359
12360 let project_settings = ProjectSettings::get_global(cx);
12361 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12362
12363 if self.mode == EditorMode::Full {
12364 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12365 if self.git_blame_inline_enabled != inline_blame_enabled {
12366 self.toggle_git_blame_inline_internal(false, cx);
12367 }
12368 }
12369
12370 cx.notify();
12371 }
12372
12373 pub fn set_searchable(&mut self, searchable: bool) {
12374 self.searchable = searchable;
12375 }
12376
12377 pub fn searchable(&self) -> bool {
12378 self.searchable
12379 }
12380
12381 fn open_proposed_changes_editor(
12382 &mut self,
12383 _: &OpenProposedChangesEditor,
12384 cx: &mut ViewContext<Self>,
12385 ) {
12386 let Some(workspace) = self.workspace() else {
12387 cx.propagate();
12388 return;
12389 };
12390
12391 let selections = self.selections.all::<usize>(cx);
12392 let buffer = self.buffer.read(cx);
12393 let mut new_selections_by_buffer = HashMap::default();
12394 for selection in selections {
12395 for (buffer, range, _) in
12396 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12397 {
12398 let mut range = range.to_point(buffer.read(cx));
12399 range.start.column = 0;
12400 range.end.column = buffer.read(cx).line_len(range.end.row);
12401 new_selections_by_buffer
12402 .entry(buffer)
12403 .or_insert(Vec::new())
12404 .push(range)
12405 }
12406 }
12407
12408 let proposed_changes_buffers = new_selections_by_buffer
12409 .into_iter()
12410 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12411 .collect::<Vec<_>>();
12412 let proposed_changes_editor = cx.new_view(|cx| {
12413 ProposedChangesEditor::new(
12414 "Proposed changes",
12415 proposed_changes_buffers,
12416 self.project.clone(),
12417 cx,
12418 )
12419 });
12420
12421 cx.window_context().defer(move |cx| {
12422 workspace.update(cx, |workspace, cx| {
12423 workspace.active_pane().update(cx, |pane, cx| {
12424 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12425 });
12426 });
12427 });
12428 }
12429
12430 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12431 self.open_excerpts_common(None, true, cx)
12432 }
12433
12434 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12435 self.open_excerpts_common(None, false, cx)
12436 }
12437
12438 fn open_excerpts_common(
12439 &mut self,
12440 jump_data: Option<JumpData>,
12441 split: bool,
12442 cx: &mut ViewContext<Self>,
12443 ) {
12444 let Some(workspace) = self.workspace() else {
12445 cx.propagate();
12446 return;
12447 };
12448
12449 if self.buffer.read(cx).is_singleton() {
12450 cx.propagate();
12451 return;
12452 }
12453
12454 let mut new_selections_by_buffer = HashMap::default();
12455 match &jump_data {
12456 Some(jump_data) => {
12457 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12458 if let Some(buffer) = multi_buffer_snapshot
12459 .buffer_id_for_excerpt(jump_data.excerpt_id)
12460 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12461 {
12462 let buffer_snapshot = buffer.read(cx).snapshot();
12463 let jump_to_point = if buffer_snapshot.can_resolve(&jump_data.anchor) {
12464 language::ToPoint::to_point(&jump_data.anchor, &buffer_snapshot)
12465 } else {
12466 buffer_snapshot.clip_point(jump_data.position, Bias::Left)
12467 };
12468 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12469 new_selections_by_buffer.insert(
12470 buffer,
12471 (
12472 vec![jump_to_offset..jump_to_offset],
12473 Some(jump_data.line_offset_from_top),
12474 ),
12475 );
12476 }
12477 }
12478 None => {
12479 let selections = self.selections.all::<usize>(cx);
12480 let buffer = self.buffer.read(cx);
12481 for selection in selections {
12482 for (mut buffer_handle, mut range, _) in
12483 buffer.range_to_buffer_ranges(selection.range(), cx)
12484 {
12485 // When editing branch buffers, jump to the corresponding location
12486 // in their base buffer.
12487 let buffer = buffer_handle.read(cx);
12488 if let Some(base_buffer) = buffer.base_buffer() {
12489 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12490 buffer_handle = base_buffer;
12491 }
12492
12493 if selection.reversed {
12494 mem::swap(&mut range.start, &mut range.end);
12495 }
12496 new_selections_by_buffer
12497 .entry(buffer_handle)
12498 .or_insert((Vec::new(), None))
12499 .0
12500 .push(range)
12501 }
12502 }
12503 }
12504 }
12505
12506 if new_selections_by_buffer.is_empty() {
12507 return;
12508 }
12509
12510 // We defer the pane interaction because we ourselves are a workspace item
12511 // and activating a new item causes the pane to call a method on us reentrantly,
12512 // which panics if we're on the stack.
12513 cx.window_context().defer(move |cx| {
12514 workspace.update(cx, |workspace, cx| {
12515 let pane = if split {
12516 workspace.adjacent_pane(cx)
12517 } else {
12518 workspace.active_pane().clone()
12519 };
12520
12521 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12522 let editor = buffer
12523 .read(cx)
12524 .file()
12525 .is_none()
12526 .then(|| {
12527 // Handle file-less buffers separately: those are not really the project items, so won't have a paroject path or entity id,
12528 // so `workspace.open_project_item` will never find them, always opening a new editor.
12529 // Instead, we try to activate the existing editor in the pane first.
12530 let (editor, pane_item_index) =
12531 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12532 let editor = item.downcast::<Editor>()?;
12533 let singleton_buffer =
12534 editor.read(cx).buffer().read(cx).as_singleton()?;
12535 if singleton_buffer == buffer {
12536 Some((editor, i))
12537 } else {
12538 None
12539 }
12540 })?;
12541 pane.update(cx, |pane, cx| {
12542 pane.activate_item(pane_item_index, true, true, cx)
12543 });
12544 Some(editor)
12545 })
12546 .flatten()
12547 .unwrap_or_else(|| {
12548 workspace.open_project_item::<Self>(
12549 pane.clone(),
12550 buffer,
12551 true,
12552 true,
12553 cx,
12554 )
12555 });
12556
12557 editor.update(cx, |editor, cx| {
12558 let autoscroll = match scroll_offset {
12559 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12560 None => Autoscroll::newest(),
12561 };
12562 let nav_history = editor.nav_history.take();
12563 editor.change_selections(Some(autoscroll), cx, |s| {
12564 s.select_ranges(ranges);
12565 });
12566 editor.nav_history = nav_history;
12567 });
12568 }
12569 })
12570 });
12571 }
12572
12573 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12574 let snapshot = self.buffer.read(cx).read(cx);
12575 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12576 Some(
12577 ranges
12578 .iter()
12579 .map(move |range| {
12580 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12581 })
12582 .collect(),
12583 )
12584 }
12585
12586 fn selection_replacement_ranges(
12587 &self,
12588 range: Range<OffsetUtf16>,
12589 cx: &mut AppContext,
12590 ) -> Vec<Range<OffsetUtf16>> {
12591 let selections = self.selections.all::<OffsetUtf16>(cx);
12592 let newest_selection = selections
12593 .iter()
12594 .max_by_key(|selection| selection.id)
12595 .unwrap();
12596 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12597 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12598 let snapshot = self.buffer.read(cx).read(cx);
12599 selections
12600 .into_iter()
12601 .map(|mut selection| {
12602 selection.start.0 =
12603 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12604 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12605 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12606 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12607 })
12608 .collect()
12609 }
12610
12611 fn report_editor_event(
12612 &self,
12613 event_type: &'static str,
12614 file_extension: Option<String>,
12615 cx: &AppContext,
12616 ) {
12617 if cfg!(any(test, feature = "test-support")) {
12618 return;
12619 }
12620
12621 let Some(project) = &self.project else { return };
12622
12623 // If None, we are in a file without an extension
12624 let file = self
12625 .buffer
12626 .read(cx)
12627 .as_singleton()
12628 .and_then(|b| b.read(cx).file());
12629 let file_extension = file_extension.or(file
12630 .as_ref()
12631 .and_then(|file| Path::new(file.file_name(cx)).extension())
12632 .and_then(|e| e.to_str())
12633 .map(|a| a.to_string()));
12634
12635 let vim_mode = cx
12636 .global::<SettingsStore>()
12637 .raw_user_settings()
12638 .get("vim_mode")
12639 == Some(&serde_json::Value::Bool(true));
12640
12641 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12642 == language::language_settings::InlineCompletionProvider::Copilot;
12643 let copilot_enabled_for_language = self
12644 .buffer
12645 .read(cx)
12646 .settings_at(0, cx)
12647 .show_inline_completions;
12648
12649 let project = project.read(cx);
12650 telemetry::event!(
12651 event_type,
12652 file_extension,
12653 vim_mode,
12654 copilot_enabled,
12655 copilot_enabled_for_language,
12656 is_via_ssh = project.is_via_ssh(),
12657 );
12658 }
12659
12660 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12661 /// with each line being an array of {text, highlight} objects.
12662 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12663 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12664 return;
12665 };
12666
12667 #[derive(Serialize)]
12668 struct Chunk<'a> {
12669 text: String,
12670 highlight: Option<&'a str>,
12671 }
12672
12673 let snapshot = buffer.read(cx).snapshot();
12674 let range = self
12675 .selected_text_range(false, cx)
12676 .and_then(|selection| {
12677 if selection.range.is_empty() {
12678 None
12679 } else {
12680 Some(selection.range)
12681 }
12682 })
12683 .unwrap_or_else(|| 0..snapshot.len());
12684
12685 let chunks = snapshot.chunks(range, true);
12686 let mut lines = Vec::new();
12687 let mut line: VecDeque<Chunk> = VecDeque::new();
12688
12689 let Some(style) = self.style.as_ref() else {
12690 return;
12691 };
12692
12693 for chunk in chunks {
12694 let highlight = chunk
12695 .syntax_highlight_id
12696 .and_then(|id| id.name(&style.syntax));
12697 let mut chunk_lines = chunk.text.split('\n').peekable();
12698 while let Some(text) = chunk_lines.next() {
12699 let mut merged_with_last_token = false;
12700 if let Some(last_token) = line.back_mut() {
12701 if last_token.highlight == highlight {
12702 last_token.text.push_str(text);
12703 merged_with_last_token = true;
12704 }
12705 }
12706
12707 if !merged_with_last_token {
12708 line.push_back(Chunk {
12709 text: text.into(),
12710 highlight,
12711 });
12712 }
12713
12714 if chunk_lines.peek().is_some() {
12715 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12716 line.pop_front();
12717 }
12718 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12719 line.pop_back();
12720 }
12721
12722 lines.push(mem::take(&mut line));
12723 }
12724 }
12725 }
12726
12727 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12728 return;
12729 };
12730 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12731 }
12732
12733 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
12734 self.request_autoscroll(Autoscroll::newest(), cx);
12735 let position = self.selections.newest_display(cx).start;
12736 mouse_context_menu::deploy_context_menu(self, None, position, cx);
12737 }
12738
12739 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12740 &self.inlay_hint_cache
12741 }
12742
12743 pub fn replay_insert_event(
12744 &mut self,
12745 text: &str,
12746 relative_utf16_range: Option<Range<isize>>,
12747 cx: &mut ViewContext<Self>,
12748 ) {
12749 if !self.input_enabled {
12750 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12751 return;
12752 }
12753 if let Some(relative_utf16_range) = relative_utf16_range {
12754 let selections = self.selections.all::<OffsetUtf16>(cx);
12755 self.change_selections(None, cx, |s| {
12756 let new_ranges = selections.into_iter().map(|range| {
12757 let start = OffsetUtf16(
12758 range
12759 .head()
12760 .0
12761 .saturating_add_signed(relative_utf16_range.start),
12762 );
12763 let end = OffsetUtf16(
12764 range
12765 .head()
12766 .0
12767 .saturating_add_signed(relative_utf16_range.end),
12768 );
12769 start..end
12770 });
12771 s.select_ranges(new_ranges);
12772 });
12773 }
12774
12775 self.handle_input(text, cx);
12776 }
12777
12778 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12779 let Some(provider) = self.semantics_provider.as_ref() else {
12780 return false;
12781 };
12782
12783 let mut supports = false;
12784 self.buffer().read(cx).for_each_buffer(|buffer| {
12785 supports |= provider.supports_inlay_hints(buffer, cx);
12786 });
12787 supports
12788 }
12789
12790 pub fn focus(&self, cx: &mut WindowContext) {
12791 cx.focus(&self.focus_handle)
12792 }
12793
12794 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12795 self.focus_handle.is_focused(cx)
12796 }
12797
12798 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12799 cx.emit(EditorEvent::Focused);
12800
12801 if let Some(descendant) = self
12802 .last_focused_descendant
12803 .take()
12804 .and_then(|descendant| descendant.upgrade())
12805 {
12806 cx.focus(&descendant);
12807 } else {
12808 if let Some(blame) = self.blame.as_ref() {
12809 blame.update(cx, GitBlame::focus)
12810 }
12811
12812 self.blink_manager.update(cx, BlinkManager::enable);
12813 self.show_cursor_names(cx);
12814 self.buffer.update(cx, |buffer, cx| {
12815 buffer.finalize_last_transaction(cx);
12816 if self.leader_peer_id.is_none() {
12817 buffer.set_active_selections(
12818 &self.selections.disjoint_anchors(),
12819 self.selections.line_mode,
12820 self.cursor_shape,
12821 cx,
12822 );
12823 }
12824 });
12825 }
12826 }
12827
12828 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12829 cx.emit(EditorEvent::FocusedIn)
12830 }
12831
12832 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12833 if event.blurred != self.focus_handle {
12834 self.last_focused_descendant = Some(event.blurred);
12835 }
12836 }
12837
12838 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12839 self.blink_manager.update(cx, BlinkManager::disable);
12840 self.buffer
12841 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12842
12843 if let Some(blame) = self.blame.as_ref() {
12844 blame.update(cx, GitBlame::blur)
12845 }
12846 if !self.hover_state.focused(cx) {
12847 hide_hover(self, cx);
12848 }
12849
12850 self.hide_context_menu(cx);
12851 cx.emit(EditorEvent::Blurred);
12852 cx.notify();
12853 }
12854
12855 pub fn register_action<A: Action>(
12856 &mut self,
12857 listener: impl Fn(&A, &mut WindowContext) + 'static,
12858 ) -> Subscription {
12859 let id = self.next_editor_action_id.post_inc();
12860 let listener = Arc::new(listener);
12861 self.editor_actions.borrow_mut().insert(
12862 id,
12863 Box::new(move |cx| {
12864 let cx = cx.window_context();
12865 let listener = listener.clone();
12866 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12867 let action = action.downcast_ref().unwrap();
12868 if phase == DispatchPhase::Bubble {
12869 listener(action, cx)
12870 }
12871 })
12872 }),
12873 );
12874
12875 let editor_actions = self.editor_actions.clone();
12876 Subscription::new(move || {
12877 editor_actions.borrow_mut().remove(&id);
12878 })
12879 }
12880
12881 pub fn file_header_size(&self) -> u32 {
12882 FILE_HEADER_HEIGHT
12883 }
12884
12885 pub fn revert(
12886 &mut self,
12887 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12888 cx: &mut ViewContext<Self>,
12889 ) {
12890 self.buffer().update(cx, |multi_buffer, cx| {
12891 for (buffer_id, changes) in revert_changes {
12892 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12893 buffer.update(cx, |buffer, cx| {
12894 buffer.edit(
12895 changes.into_iter().map(|(range, text)| {
12896 (range, text.to_string().map(Arc::<str>::from))
12897 }),
12898 None,
12899 cx,
12900 );
12901 });
12902 }
12903 }
12904 });
12905 self.change_selections(None, cx, |selections| selections.refresh());
12906 }
12907
12908 pub fn to_pixel_point(
12909 &mut self,
12910 source: multi_buffer::Anchor,
12911 editor_snapshot: &EditorSnapshot,
12912 cx: &mut ViewContext<Self>,
12913 ) -> Option<gpui::Point<Pixels>> {
12914 let source_point = source.to_display_point(editor_snapshot);
12915 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12916 }
12917
12918 pub fn display_to_pixel_point(
12919 &self,
12920 source: DisplayPoint,
12921 editor_snapshot: &EditorSnapshot,
12922 cx: &WindowContext,
12923 ) -> Option<gpui::Point<Pixels>> {
12924 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12925 let text_layout_details = self.text_layout_details(cx);
12926 let scroll_top = text_layout_details
12927 .scroll_anchor
12928 .scroll_position(editor_snapshot)
12929 .y;
12930
12931 if source.row().as_f32() < scroll_top.floor() {
12932 return None;
12933 }
12934 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12935 let source_y = line_height * (source.row().as_f32() - scroll_top);
12936 Some(gpui::Point::new(source_x, source_y))
12937 }
12938
12939 pub fn has_active_completions_menu(&self) -> bool {
12940 self.context_menu.borrow().as_ref().map_or(false, |menu| {
12941 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
12942 })
12943 }
12944
12945 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12946 self.addons
12947 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
12948 }
12949
12950 pub fn unregister_addon<T: Addon>(&mut self) {
12951 self.addons.remove(&std::any::TypeId::of::<T>());
12952 }
12953
12954 pub fn addon<T: Addon>(&self) -> Option<&T> {
12955 let type_id = std::any::TypeId::of::<T>();
12956 self.addons
12957 .get(&type_id)
12958 .and_then(|item| item.to_any().downcast_ref::<T>())
12959 }
12960
12961 pub fn add_change_set(
12962 &mut self,
12963 change_set: Model<BufferChangeSet>,
12964 cx: &mut ViewContext<Self>,
12965 ) {
12966 self.diff_map.add_change_set(change_set, cx);
12967 }
12968
12969 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
12970 let text_layout_details = self.text_layout_details(cx);
12971 let style = &text_layout_details.editor_style;
12972 let font_id = cx.text_system().resolve_font(&style.text.font());
12973 let font_size = style.text.font_size.to_pixels(cx.rem_size());
12974 let line_height = style.text.line_height_in_pixels(cx.rem_size());
12975
12976 let em_width = cx
12977 .text_system()
12978 .typographic_bounds(font_id, font_size, 'm')
12979 .unwrap()
12980 .size
12981 .width;
12982
12983 gpui::Point::new(em_width, line_height)
12984 }
12985}
12986
12987fn get_unstaged_changes_for_buffers(
12988 project: &Model<Project>,
12989 buffers: impl IntoIterator<Item = Model<Buffer>>,
12990 cx: &mut ViewContext<Editor>,
12991) {
12992 let mut tasks = Vec::new();
12993 project.update(cx, |project, cx| {
12994 for buffer in buffers {
12995 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
12996 }
12997 });
12998 cx.spawn(|this, mut cx| async move {
12999 let change_sets = futures::future::join_all(tasks).await;
13000 this.update(&mut cx, |this, cx| {
13001 for change_set in change_sets {
13002 if let Some(change_set) = change_set.log_err() {
13003 this.diff_map.add_change_set(change_set, cx);
13004 }
13005 }
13006 })
13007 .ok();
13008 })
13009 .detach();
13010}
13011
13012fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13013 let tab_size = tab_size.get() as usize;
13014 let mut width = offset;
13015
13016 for ch in text.chars() {
13017 width += if ch == '\t' {
13018 tab_size - (width % tab_size)
13019 } else {
13020 1
13021 };
13022 }
13023
13024 width - offset
13025}
13026
13027#[cfg(test)]
13028mod tests {
13029 use super::*;
13030
13031 #[test]
13032 fn test_string_size_with_expanded_tabs() {
13033 let nz = |val| NonZeroU32::new(val).unwrap();
13034 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13035 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13036 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13037 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13038 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13039 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13040 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13041 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13042 }
13043}
13044
13045/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13046struct WordBreakingTokenizer<'a> {
13047 input: &'a str,
13048}
13049
13050impl<'a> WordBreakingTokenizer<'a> {
13051 fn new(input: &'a str) -> Self {
13052 Self { input }
13053 }
13054}
13055
13056fn is_char_ideographic(ch: char) -> bool {
13057 use unicode_script::Script::*;
13058 use unicode_script::UnicodeScript;
13059 matches!(ch.script(), Han | Tangut | Yi)
13060}
13061
13062fn is_grapheme_ideographic(text: &str) -> bool {
13063 text.chars().any(is_char_ideographic)
13064}
13065
13066fn is_grapheme_whitespace(text: &str) -> bool {
13067 text.chars().any(|x| x.is_whitespace())
13068}
13069
13070fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13071 text.chars().next().map_or(false, |ch| {
13072 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13073 })
13074}
13075
13076#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13077struct WordBreakToken<'a> {
13078 token: &'a str,
13079 grapheme_len: usize,
13080 is_whitespace: bool,
13081}
13082
13083impl<'a> Iterator for WordBreakingTokenizer<'a> {
13084 /// Yields a span, the count of graphemes in the token, and whether it was
13085 /// whitespace. Note that it also breaks at word boundaries.
13086 type Item = WordBreakToken<'a>;
13087
13088 fn next(&mut self) -> Option<Self::Item> {
13089 use unicode_segmentation::UnicodeSegmentation;
13090 if self.input.is_empty() {
13091 return None;
13092 }
13093
13094 let mut iter = self.input.graphemes(true).peekable();
13095 let mut offset = 0;
13096 let mut graphemes = 0;
13097 if let Some(first_grapheme) = iter.next() {
13098 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13099 offset += first_grapheme.len();
13100 graphemes += 1;
13101 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13102 if let Some(grapheme) = iter.peek().copied() {
13103 if should_stay_with_preceding_ideograph(grapheme) {
13104 offset += grapheme.len();
13105 graphemes += 1;
13106 }
13107 }
13108 } else {
13109 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13110 let mut next_word_bound = words.peek().copied();
13111 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13112 next_word_bound = words.next();
13113 }
13114 while let Some(grapheme) = iter.peek().copied() {
13115 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13116 break;
13117 };
13118 if is_grapheme_whitespace(grapheme) != is_whitespace {
13119 break;
13120 };
13121 offset += grapheme.len();
13122 graphemes += 1;
13123 iter.next();
13124 }
13125 }
13126 let token = &self.input[..offset];
13127 self.input = &self.input[offset..];
13128 if is_whitespace {
13129 Some(WordBreakToken {
13130 token: " ",
13131 grapheme_len: 1,
13132 is_whitespace: true,
13133 })
13134 } else {
13135 Some(WordBreakToken {
13136 token,
13137 grapheme_len: graphemes,
13138 is_whitespace: false,
13139 })
13140 }
13141 } else {
13142 None
13143 }
13144 }
13145}
13146
13147#[test]
13148fn test_word_breaking_tokenizer() {
13149 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13150 ("", &[]),
13151 (" ", &[(" ", 1, true)]),
13152 ("Ʒ", &[("Ʒ", 1, false)]),
13153 ("Ǽ", &[("Ǽ", 1, false)]),
13154 ("⋑", &[("⋑", 1, false)]),
13155 ("⋑⋑", &[("⋑⋑", 2, false)]),
13156 (
13157 "原理，进而",
13158 &[
13159 ("原", 1, false),
13160 ("理，", 2, false),
13161 ("进", 1, false),
13162 ("而", 1, false),
13163 ],
13164 ),
13165 (
13166 "hello world",
13167 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13168 ),
13169 (
13170 "hello, world",
13171 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13172 ),
13173 (
13174 " hello world",
13175 &[
13176 (" ", 1, true),
13177 ("hello", 5, false),
13178 (" ", 1, true),
13179 ("world", 5, false),
13180 ],
13181 ),
13182 (
13183 "这是什么 \n 钢笔",
13184 &[
13185 ("这", 1, false),
13186 ("是", 1, false),
13187 ("什", 1, false),
13188 ("么", 1, false),
13189 (" ", 1, true),
13190 ("钢", 1, false),
13191 ("笔", 1, false),
13192 ],
13193 ),
13194 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13195 ];
13196
13197 for (input, result) in tests {
13198 assert_eq!(
13199 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13200 result
13201 .iter()
13202 .copied()
13203 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13204 token,
13205 grapheme_len,
13206 is_whitespace,
13207 })
13208 .collect::<Vec<_>>()
13209 );
13210 }
13211}
13212
13213fn wrap_with_prefix(
13214 line_prefix: String,
13215 unwrapped_text: String,
13216 wrap_column: usize,
13217 tab_size: NonZeroU32,
13218) -> String {
13219 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13220 let mut wrapped_text = String::new();
13221 let mut current_line = line_prefix.clone();
13222
13223 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13224 let mut current_line_len = line_prefix_len;
13225 for WordBreakToken {
13226 token,
13227 grapheme_len,
13228 is_whitespace,
13229 } in tokenizer
13230 {
13231 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13232 wrapped_text.push_str(current_line.trim_end());
13233 wrapped_text.push('\n');
13234 current_line.truncate(line_prefix.len());
13235 current_line_len = line_prefix_len;
13236 if !is_whitespace {
13237 current_line.push_str(token);
13238 current_line_len += grapheme_len;
13239 }
13240 } else if !is_whitespace {
13241 current_line.push_str(token);
13242 current_line_len += grapheme_len;
13243 } else if current_line_len != line_prefix_len {
13244 current_line.push(' ');
13245 current_line_len += 1;
13246 }
13247 }
13248
13249 if !current_line.is_empty() {
13250 wrapped_text.push_str(¤t_line);
13251 }
13252 wrapped_text
13253}
13254
13255#[test]
13256fn test_wrap_with_prefix() {
13257 assert_eq!(
13258 wrap_with_prefix(
13259 "# ".to_string(),
13260 "abcdefg".to_string(),
13261 4,
13262 NonZeroU32::new(4).unwrap()
13263 ),
13264 "# abcdefg"
13265 );
13266 assert_eq!(
13267 wrap_with_prefix(
13268 "".to_string(),
13269 "\thello world".to_string(),
13270 8,
13271 NonZeroU32::new(4).unwrap()
13272 ),
13273 "hello\nworld"
13274 );
13275 assert_eq!(
13276 wrap_with_prefix(
13277 "// ".to_string(),
13278 "xx \nyy zz aa bb cc".to_string(),
13279 12,
13280 NonZeroU32::new(4).unwrap()
13281 ),
13282 "// xx yy zz\n// aa bb cc"
13283 );
13284 assert_eq!(
13285 wrap_with_prefix(
13286 String::new(),
13287 "这是什么 \n 钢笔".to_string(),
13288 3,
13289 NonZeroU32::new(4).unwrap()
13290 ),
13291 "这是什\n么 钢\n笔"
13292 );
13293}
13294
13295fn hunks_for_selections(
13296 snapshot: &EditorSnapshot,
13297 selections: &[Selection<Point>],
13298) -> Vec<MultiBufferDiffHunk> {
13299 hunks_for_ranges(
13300 selections.iter().map(|selection| selection.range()),
13301 snapshot,
13302 )
13303}
13304
13305pub fn hunks_for_ranges(
13306 ranges: impl Iterator<Item = Range<Point>>,
13307 snapshot: &EditorSnapshot,
13308) -> Vec<MultiBufferDiffHunk> {
13309 let mut hunks = Vec::new();
13310 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13311 HashMap::default();
13312 for query_range in ranges {
13313 let query_rows =
13314 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
13315 for hunk in snapshot.diff_map.diff_hunks_in_range(
13316 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
13317 &snapshot.buffer_snapshot,
13318 ) {
13319 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13320 // when the caret is just above or just below the deleted hunk.
13321 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13322 let related_to_selection = if allow_adjacent {
13323 hunk.row_range.overlaps(&query_rows)
13324 || hunk.row_range.start == query_rows.end
13325 || hunk.row_range.end == query_rows.start
13326 } else {
13327 hunk.row_range.overlaps(&query_rows)
13328 };
13329 if related_to_selection {
13330 if !processed_buffer_rows
13331 .entry(hunk.buffer_id)
13332 .or_default()
13333 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13334 {
13335 continue;
13336 }
13337 hunks.push(hunk);
13338 }
13339 }
13340 }
13341
13342 hunks
13343}
13344
13345pub trait CollaborationHub {
13346 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13347 fn user_participant_indices<'a>(
13348 &self,
13349 cx: &'a AppContext,
13350 ) -> &'a HashMap<u64, ParticipantIndex>;
13351 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13352}
13353
13354impl CollaborationHub for Model<Project> {
13355 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13356 self.read(cx).collaborators()
13357 }
13358
13359 fn user_participant_indices<'a>(
13360 &self,
13361 cx: &'a AppContext,
13362 ) -> &'a HashMap<u64, ParticipantIndex> {
13363 self.read(cx).user_store().read(cx).participant_indices()
13364 }
13365
13366 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13367 let this = self.read(cx);
13368 let user_ids = this.collaborators().values().map(|c| c.user_id);
13369 this.user_store().read_with(cx, |user_store, cx| {
13370 user_store.participant_names(user_ids, cx)
13371 })
13372 }
13373}
13374
13375pub trait SemanticsProvider {
13376 fn hover(
13377 &self,
13378 buffer: &Model<Buffer>,
13379 position: text::Anchor,
13380 cx: &mut AppContext,
13381 ) -> Option<Task<Vec<project::Hover>>>;
13382
13383 fn inlay_hints(
13384 &self,
13385 buffer_handle: Model<Buffer>,
13386 range: Range<text::Anchor>,
13387 cx: &mut AppContext,
13388 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13389
13390 fn resolve_inlay_hint(
13391 &self,
13392 hint: InlayHint,
13393 buffer_handle: Model<Buffer>,
13394 server_id: LanguageServerId,
13395 cx: &mut AppContext,
13396 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13397
13398 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13399
13400 fn document_highlights(
13401 &self,
13402 buffer: &Model<Buffer>,
13403 position: text::Anchor,
13404 cx: &mut AppContext,
13405 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13406
13407 fn definitions(
13408 &self,
13409 buffer: &Model<Buffer>,
13410 position: text::Anchor,
13411 kind: GotoDefinitionKind,
13412 cx: &mut AppContext,
13413 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13414
13415 fn range_for_rename(
13416 &self,
13417 buffer: &Model<Buffer>,
13418 position: text::Anchor,
13419 cx: &mut AppContext,
13420 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13421
13422 fn perform_rename(
13423 &self,
13424 buffer: &Model<Buffer>,
13425 position: text::Anchor,
13426 new_name: String,
13427 cx: &mut AppContext,
13428 ) -> Option<Task<Result<ProjectTransaction>>>;
13429}
13430
13431pub trait CompletionProvider {
13432 fn completions(
13433 &self,
13434 buffer: &Model<Buffer>,
13435 buffer_position: text::Anchor,
13436 trigger: CompletionContext,
13437 cx: &mut ViewContext<Editor>,
13438 ) -> Task<Result<Vec<Completion>>>;
13439
13440 fn resolve_completions(
13441 &self,
13442 buffer: Model<Buffer>,
13443 completion_indices: Vec<usize>,
13444 completions: Rc<RefCell<Box<[Completion]>>>,
13445 cx: &mut ViewContext<Editor>,
13446 ) -> Task<Result<bool>>;
13447
13448 fn apply_additional_edits_for_completion(
13449 &self,
13450 buffer: Model<Buffer>,
13451 completion: Completion,
13452 push_to_history: bool,
13453 cx: &mut ViewContext<Editor>,
13454 ) -> Task<Result<Option<language::Transaction>>>;
13455
13456 fn is_completion_trigger(
13457 &self,
13458 buffer: &Model<Buffer>,
13459 position: language::Anchor,
13460 text: &str,
13461 trigger_in_words: bool,
13462 cx: &mut ViewContext<Editor>,
13463 ) -> bool;
13464
13465 fn sort_completions(&self) -> bool {
13466 true
13467 }
13468}
13469
13470pub trait CodeActionProvider {
13471 fn code_actions(
13472 &self,
13473 buffer: &Model<Buffer>,
13474 range: Range<text::Anchor>,
13475 cx: &mut WindowContext,
13476 ) -> Task<Result<Vec<CodeAction>>>;
13477
13478 fn apply_code_action(
13479 &self,
13480 buffer_handle: Model<Buffer>,
13481 action: CodeAction,
13482 excerpt_id: ExcerptId,
13483 push_to_history: bool,
13484 cx: &mut WindowContext,
13485 ) -> Task<Result<ProjectTransaction>>;
13486}
13487
13488impl CodeActionProvider for Model<Project> {
13489 fn code_actions(
13490 &self,
13491 buffer: &Model<Buffer>,
13492 range: Range<text::Anchor>,
13493 cx: &mut WindowContext,
13494 ) -> Task<Result<Vec<CodeAction>>> {
13495 self.update(cx, |project, cx| {
13496 project.code_actions(buffer, range, None, cx)
13497 })
13498 }
13499
13500 fn apply_code_action(
13501 &self,
13502 buffer_handle: Model<Buffer>,
13503 action: CodeAction,
13504 _excerpt_id: ExcerptId,
13505 push_to_history: bool,
13506 cx: &mut WindowContext,
13507 ) -> Task<Result<ProjectTransaction>> {
13508 self.update(cx, |project, cx| {
13509 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13510 })
13511 }
13512}
13513
13514fn snippet_completions(
13515 project: &Project,
13516 buffer: &Model<Buffer>,
13517 buffer_position: text::Anchor,
13518 cx: &mut AppContext,
13519) -> Task<Result<Vec<Completion>>> {
13520 let language = buffer.read(cx).language_at(buffer_position);
13521 let language_name = language.as_ref().map(|language| language.lsp_id());
13522 let snippet_store = project.snippets().read(cx);
13523 let snippets = snippet_store.snippets_for(language_name, cx);
13524
13525 if snippets.is_empty() {
13526 return Task::ready(Ok(vec![]));
13527 }
13528 let snapshot = buffer.read(cx).text_snapshot();
13529 let chars: String = snapshot
13530 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13531 .collect();
13532
13533 let scope = language.map(|language| language.default_scope());
13534 let executor = cx.background_executor().clone();
13535
13536 cx.background_executor().spawn(async move {
13537 let classifier = CharClassifier::new(scope).for_completion(true);
13538 let mut last_word = chars
13539 .chars()
13540 .take_while(|c| classifier.is_word(*c))
13541 .collect::<String>();
13542 last_word = last_word.chars().rev().collect();
13543
13544 if last_word.is_empty() {
13545 return Ok(vec![]);
13546 }
13547
13548 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13549 let to_lsp = |point: &text::Anchor| {
13550 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13551 point_to_lsp(end)
13552 };
13553 let lsp_end = to_lsp(&buffer_position);
13554
13555 let candidates = snippets
13556 .iter()
13557 .enumerate()
13558 .flat_map(|(ix, snippet)| {
13559 snippet
13560 .prefix
13561 .iter()
13562 .map(move |prefix| StringMatchCandidate::new(ix, &prefix))
13563 })
13564 .collect::<Vec<StringMatchCandidate>>();
13565
13566 let mut matches = fuzzy::match_strings(
13567 &candidates,
13568 &last_word,
13569 last_word.chars().any(|c| c.is_uppercase()),
13570 100,
13571 &Default::default(),
13572 executor,
13573 )
13574 .await;
13575
13576 // Remove all candidates where the query's start does not match the start of any word in the candidate
13577 if let Some(query_start) = last_word.chars().next() {
13578 matches.retain(|string_match| {
13579 split_words(&string_match.string).any(|word| {
13580 // Check that the first codepoint of the word as lowercase matches the first
13581 // codepoint of the query as lowercase
13582 word.chars()
13583 .flat_map(|codepoint| codepoint.to_lowercase())
13584 .zip(query_start.to_lowercase())
13585 .all(|(word_cp, query_cp)| word_cp == query_cp)
13586 })
13587 });
13588 }
13589
13590 let matched_strings = matches
13591 .into_iter()
13592 .map(|m| m.string)
13593 .collect::<HashSet<_>>();
13594
13595 let result: Vec<Completion> = snippets
13596 .into_iter()
13597 .filter_map(|snippet| {
13598 let matching_prefix = snippet
13599 .prefix
13600 .iter()
13601 .find(|prefix| matched_strings.contains(*prefix))?;
13602 let start = as_offset - last_word.len();
13603 let start = snapshot.anchor_before(start);
13604 let range = start..buffer_position;
13605 let lsp_start = to_lsp(&start);
13606 let lsp_range = lsp::Range {
13607 start: lsp_start,
13608 end: lsp_end,
13609 };
13610 Some(Completion {
13611 old_range: range,
13612 new_text: snippet.body.clone(),
13613 label: CodeLabel {
13614 text: matching_prefix.clone(),
13615 runs: vec![],
13616 filter_range: 0..matching_prefix.len(),
13617 },
13618 server_id: LanguageServerId(usize::MAX),
13619 documentation: snippet.description.clone().map(Documentation::SingleLine),
13620 lsp_completion: lsp::CompletionItem {
13621 label: snippet.prefix.first().unwrap().clone(),
13622 kind: Some(CompletionItemKind::SNIPPET),
13623 label_details: snippet.description.as_ref().map(|description| {
13624 lsp::CompletionItemLabelDetails {
13625 detail: Some(description.clone()),
13626 description: None,
13627 }
13628 }),
13629 insert_text_format: Some(InsertTextFormat::SNIPPET),
13630 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13631 lsp::InsertReplaceEdit {
13632 new_text: snippet.body.clone(),
13633 insert: lsp_range,
13634 replace: lsp_range,
13635 },
13636 )),
13637 filter_text: Some(snippet.body.clone()),
13638 sort_text: Some(char::MAX.to_string()),
13639 ..Default::default()
13640 },
13641 confirm: None,
13642 })
13643 })
13644 .collect();
13645
13646 Ok(result)
13647 })
13648}
13649
13650impl CompletionProvider for Model<Project> {
13651 fn completions(
13652 &self,
13653 buffer: &Model<Buffer>,
13654 buffer_position: text::Anchor,
13655 options: CompletionContext,
13656 cx: &mut ViewContext<Editor>,
13657 ) -> Task<Result<Vec<Completion>>> {
13658 self.update(cx, |project, cx| {
13659 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13660 let project_completions = project.completions(buffer, buffer_position, options, cx);
13661 cx.background_executor().spawn(async move {
13662 let mut completions = project_completions.await?;
13663 let snippets_completions = snippets.await?;
13664 completions.extend(snippets_completions);
13665 Ok(completions)
13666 })
13667 })
13668 }
13669
13670 fn resolve_completions(
13671 &self,
13672 buffer: Model<Buffer>,
13673 completion_indices: Vec<usize>,
13674 completions: Rc<RefCell<Box<[Completion]>>>,
13675 cx: &mut ViewContext<Editor>,
13676 ) -> Task<Result<bool>> {
13677 self.update(cx, |project, cx| {
13678 project.resolve_completions(buffer, completion_indices, completions, cx)
13679 })
13680 }
13681
13682 fn apply_additional_edits_for_completion(
13683 &self,
13684 buffer: Model<Buffer>,
13685 completion: Completion,
13686 push_to_history: bool,
13687 cx: &mut ViewContext<Editor>,
13688 ) -> Task<Result<Option<language::Transaction>>> {
13689 self.update(cx, |project, cx| {
13690 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13691 })
13692 }
13693
13694 fn is_completion_trigger(
13695 &self,
13696 buffer: &Model<Buffer>,
13697 position: language::Anchor,
13698 text: &str,
13699 trigger_in_words: bool,
13700 cx: &mut ViewContext<Editor>,
13701 ) -> bool {
13702 let mut chars = text.chars();
13703 let char = if let Some(char) = chars.next() {
13704 char
13705 } else {
13706 return false;
13707 };
13708 if chars.next().is_some() {
13709 return false;
13710 }
13711
13712 let buffer = buffer.read(cx);
13713 let snapshot = buffer.snapshot();
13714 if !snapshot.settings_at(position, cx).show_completions_on_input {
13715 return false;
13716 }
13717 let classifier = snapshot.char_classifier_at(position).for_completion(true);
13718 if trigger_in_words && classifier.is_word(char) {
13719 return true;
13720 }
13721
13722 buffer.completion_triggers().contains(text)
13723 }
13724}
13725
13726impl SemanticsProvider for Model<Project> {
13727 fn hover(
13728 &self,
13729 buffer: &Model<Buffer>,
13730 position: text::Anchor,
13731 cx: &mut AppContext,
13732 ) -> Option<Task<Vec<project::Hover>>> {
13733 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13734 }
13735
13736 fn document_highlights(
13737 &self,
13738 buffer: &Model<Buffer>,
13739 position: text::Anchor,
13740 cx: &mut AppContext,
13741 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13742 Some(self.update(cx, |project, cx| {
13743 project.document_highlights(buffer, position, cx)
13744 }))
13745 }
13746
13747 fn definitions(
13748 &self,
13749 buffer: &Model<Buffer>,
13750 position: text::Anchor,
13751 kind: GotoDefinitionKind,
13752 cx: &mut AppContext,
13753 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13754 Some(self.update(cx, |project, cx| match kind {
13755 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13756 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13757 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13758 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13759 }))
13760 }
13761
13762 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13763 // TODO: make this work for remote projects
13764 self.read(cx)
13765 .language_servers_for_local_buffer(buffer.read(cx), cx)
13766 .any(
13767 |(_, server)| match server.capabilities().inlay_hint_provider {
13768 Some(lsp::OneOf::Left(enabled)) => enabled,
13769 Some(lsp::OneOf::Right(_)) => true,
13770 None => false,
13771 },
13772 )
13773 }
13774
13775 fn inlay_hints(
13776 &self,
13777 buffer_handle: Model<Buffer>,
13778 range: Range<text::Anchor>,
13779 cx: &mut AppContext,
13780 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13781 Some(self.update(cx, |project, cx| {
13782 project.inlay_hints(buffer_handle, range, cx)
13783 }))
13784 }
13785
13786 fn resolve_inlay_hint(
13787 &self,
13788 hint: InlayHint,
13789 buffer_handle: Model<Buffer>,
13790 server_id: LanguageServerId,
13791 cx: &mut AppContext,
13792 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13793 Some(self.update(cx, |project, cx| {
13794 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13795 }))
13796 }
13797
13798 fn range_for_rename(
13799 &self,
13800 buffer: &Model<Buffer>,
13801 position: text::Anchor,
13802 cx: &mut AppContext,
13803 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13804 Some(self.update(cx, |project, cx| {
13805 project.prepare_rename(buffer.clone(), position, cx)
13806 }))
13807 }
13808
13809 fn perform_rename(
13810 &self,
13811 buffer: &Model<Buffer>,
13812 position: text::Anchor,
13813 new_name: String,
13814 cx: &mut AppContext,
13815 ) -> Option<Task<Result<ProjectTransaction>>> {
13816 Some(self.update(cx, |project, cx| {
13817 project.perform_rename(buffer.clone(), position, new_name, cx)
13818 }))
13819 }
13820}
13821
13822fn inlay_hint_settings(
13823 location: Anchor,
13824 snapshot: &MultiBufferSnapshot,
13825 cx: &mut ViewContext<'_, Editor>,
13826) -> InlayHintSettings {
13827 let file = snapshot.file_at(location);
13828 let language = snapshot.language_at(location).map(|l| l.name());
13829 language_settings(language, file, cx).inlay_hints
13830}
13831
13832fn consume_contiguous_rows(
13833 contiguous_row_selections: &mut Vec<Selection<Point>>,
13834 selection: &Selection<Point>,
13835 display_map: &DisplaySnapshot,
13836 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
13837) -> (MultiBufferRow, MultiBufferRow) {
13838 contiguous_row_selections.push(selection.clone());
13839 let start_row = MultiBufferRow(selection.start.row);
13840 let mut end_row = ending_row(selection, display_map);
13841
13842 while let Some(next_selection) = selections.peek() {
13843 if next_selection.start.row <= end_row.0 {
13844 end_row = ending_row(next_selection, display_map);
13845 contiguous_row_selections.push(selections.next().unwrap().clone());
13846 } else {
13847 break;
13848 }
13849 }
13850 (start_row, end_row)
13851}
13852
13853fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13854 if next_selection.end.column > 0 || next_selection.is_empty() {
13855 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13856 } else {
13857 MultiBufferRow(next_selection.end.row)
13858 }
13859}
13860
13861impl EditorSnapshot {
13862 pub fn remote_selections_in_range<'a>(
13863 &'a self,
13864 range: &'a Range<Anchor>,
13865 collaboration_hub: &dyn CollaborationHub,
13866 cx: &'a AppContext,
13867 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13868 let participant_names = collaboration_hub.user_names(cx);
13869 let participant_indices = collaboration_hub.user_participant_indices(cx);
13870 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13871 let collaborators_by_replica_id = collaborators_by_peer_id
13872 .iter()
13873 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13874 .collect::<HashMap<_, _>>();
13875 self.buffer_snapshot
13876 .selections_in_range(range, false)
13877 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13878 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13879 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13880 let user_name = participant_names.get(&collaborator.user_id).cloned();
13881 Some(RemoteSelection {
13882 replica_id,
13883 selection,
13884 cursor_shape,
13885 line_mode,
13886 participant_index,
13887 peer_id: collaborator.peer_id,
13888 user_name,
13889 })
13890 })
13891 }
13892
13893 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13894 self.display_snapshot.buffer_snapshot.language_at(position)
13895 }
13896
13897 pub fn is_focused(&self) -> bool {
13898 self.is_focused
13899 }
13900
13901 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13902 self.placeholder_text.as_ref()
13903 }
13904
13905 pub fn scroll_position(&self) -> gpui::Point<f32> {
13906 self.scroll_anchor.scroll_position(&self.display_snapshot)
13907 }
13908
13909 fn gutter_dimensions(
13910 &self,
13911 font_id: FontId,
13912 font_size: Pixels,
13913 em_width: Pixels,
13914 em_advance: Pixels,
13915 max_line_number_width: Pixels,
13916 cx: &AppContext,
13917 ) -> GutterDimensions {
13918 if !self.show_gutter {
13919 return GutterDimensions::default();
13920 }
13921 let descent = cx.text_system().descent(font_id, font_size);
13922
13923 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13924 matches!(
13925 ProjectSettings::get_global(cx).git.git_gutter,
13926 Some(GitGutterSetting::TrackedFiles)
13927 )
13928 });
13929 let gutter_settings = EditorSettings::get_global(cx).gutter;
13930 let show_line_numbers = self
13931 .show_line_numbers
13932 .unwrap_or(gutter_settings.line_numbers);
13933 let line_gutter_width = if show_line_numbers {
13934 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13935 let min_width_for_number_on_gutter = em_advance * 4.0;
13936 max_line_number_width.max(min_width_for_number_on_gutter)
13937 } else {
13938 0.0.into()
13939 };
13940
13941 let show_code_actions = self
13942 .show_code_actions
13943 .unwrap_or(gutter_settings.code_actions);
13944
13945 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13946
13947 let git_blame_entries_width =
13948 self.git_blame_gutter_max_author_length
13949 .map(|max_author_length| {
13950 // Length of the author name, but also space for the commit hash,
13951 // the spacing and the timestamp.
13952 let max_char_count = max_author_length
13953 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13954 + 7 // length of commit sha
13955 + 14 // length of max relative timestamp ("60 minutes ago")
13956 + 4; // gaps and margins
13957
13958 em_advance * max_char_count
13959 });
13960
13961 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13962 left_padding += if show_code_actions || show_runnables {
13963 em_width * 3.0
13964 } else if show_git_gutter && show_line_numbers {
13965 em_width * 2.0
13966 } else if show_git_gutter || show_line_numbers {
13967 em_width
13968 } else {
13969 px(0.)
13970 };
13971
13972 let right_padding = if gutter_settings.folds && show_line_numbers {
13973 em_width * 4.0
13974 } else if gutter_settings.folds {
13975 em_width * 3.0
13976 } else if show_line_numbers {
13977 em_width
13978 } else {
13979 px(0.)
13980 };
13981
13982 GutterDimensions {
13983 left_padding,
13984 right_padding,
13985 width: line_gutter_width + left_padding + right_padding,
13986 margin: -descent,
13987 git_blame_entries_width,
13988 }
13989 }
13990
13991 pub fn render_crease_toggle(
13992 &self,
13993 buffer_row: MultiBufferRow,
13994 row_contains_cursor: bool,
13995 editor: View<Editor>,
13996 cx: &mut WindowContext,
13997 ) -> Option<AnyElement> {
13998 let folded = self.is_line_folded(buffer_row);
13999 let mut is_foldable = false;
14000
14001 if let Some(crease) = self
14002 .crease_snapshot
14003 .query_row(buffer_row, &self.buffer_snapshot)
14004 {
14005 is_foldable = true;
14006 match crease {
14007 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
14008 if let Some(render_toggle) = render_toggle {
14009 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14010 if folded {
14011 editor.update(cx, |editor, cx| {
14012 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14013 });
14014 } else {
14015 editor.update(cx, |editor, cx| {
14016 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14017 });
14018 }
14019 });
14020 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14021 }
14022 }
14023 }
14024 }
14025
14026 is_foldable |= self.starts_indent(buffer_row);
14027
14028 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14029 Some(
14030 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14031 .toggle_state(folded)
14032 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14033 if folded {
14034 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14035 } else {
14036 this.fold_at(&FoldAt { buffer_row }, cx);
14037 }
14038 }))
14039 .into_any_element(),
14040 )
14041 } else {
14042 None
14043 }
14044 }
14045
14046 pub fn render_crease_trailer(
14047 &self,
14048 buffer_row: MultiBufferRow,
14049 cx: &mut WindowContext,
14050 ) -> Option<AnyElement> {
14051 let folded = self.is_line_folded(buffer_row);
14052 if let Crease::Inline { render_trailer, .. } = self
14053 .crease_snapshot
14054 .query_row(buffer_row, &self.buffer_snapshot)?
14055 {
14056 let render_trailer = render_trailer.as_ref()?;
14057 Some(render_trailer(buffer_row, folded, cx))
14058 } else {
14059 None
14060 }
14061 }
14062}
14063
14064impl Deref for EditorSnapshot {
14065 type Target = DisplaySnapshot;
14066
14067 fn deref(&self) -> &Self::Target {
14068 &self.display_snapshot
14069 }
14070}
14071
14072#[derive(Clone, Debug, PartialEq, Eq)]
14073pub enum EditorEvent {
14074 InputIgnored {
14075 text: Arc<str>,
14076 },
14077 InputHandled {
14078 utf16_range_to_replace: Option<Range<isize>>,
14079 text: Arc<str>,
14080 },
14081 ExcerptsAdded {
14082 buffer: Model<Buffer>,
14083 predecessor: ExcerptId,
14084 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14085 },
14086 ExcerptsRemoved {
14087 ids: Vec<ExcerptId>,
14088 },
14089 BufferFoldToggled {
14090 ids: Vec<ExcerptId>,
14091 folded: bool,
14092 },
14093 ExcerptsEdited {
14094 ids: Vec<ExcerptId>,
14095 },
14096 ExcerptsExpanded {
14097 ids: Vec<ExcerptId>,
14098 },
14099 BufferEdited,
14100 Edited {
14101 transaction_id: clock::Lamport,
14102 },
14103 Reparsed(BufferId),
14104 Focused,
14105 FocusedIn,
14106 Blurred,
14107 DirtyChanged,
14108 Saved,
14109 TitleChanged,
14110 DiffBaseChanged,
14111 SelectionsChanged {
14112 local: bool,
14113 },
14114 ScrollPositionChanged {
14115 local: bool,
14116 autoscroll: bool,
14117 },
14118 Closed,
14119 TransactionUndone {
14120 transaction_id: clock::Lamport,
14121 },
14122 TransactionBegun {
14123 transaction_id: clock::Lamport,
14124 },
14125 Reloaded,
14126 CursorShapeChanged,
14127}
14128
14129impl EventEmitter<EditorEvent> for Editor {}
14130
14131impl FocusableView for Editor {
14132 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14133 self.focus_handle.clone()
14134 }
14135}
14136
14137impl Render for Editor {
14138 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14139 let settings = ThemeSettings::get_global(cx);
14140
14141 let mut text_style = match self.mode {
14142 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14143 color: cx.theme().colors().editor_foreground,
14144 font_family: settings.ui_font.family.clone(),
14145 font_features: settings.ui_font.features.clone(),
14146 font_fallbacks: settings.ui_font.fallbacks.clone(),
14147 font_size: rems(0.875).into(),
14148 font_weight: settings.ui_font.weight,
14149 line_height: relative(settings.buffer_line_height.value()),
14150 ..Default::default()
14151 },
14152 EditorMode::Full => TextStyle {
14153 color: cx.theme().colors().editor_foreground,
14154 font_family: settings.buffer_font.family.clone(),
14155 font_features: settings.buffer_font.features.clone(),
14156 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14157 font_size: settings.buffer_font_size(cx).into(),
14158 font_weight: settings.buffer_font.weight,
14159 line_height: relative(settings.buffer_line_height.value()),
14160 ..Default::default()
14161 },
14162 };
14163 if let Some(text_style_refinement) = &self.text_style_refinement {
14164 text_style.refine(text_style_refinement)
14165 }
14166
14167 let background = match self.mode {
14168 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14169 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14170 EditorMode::Full => cx.theme().colors().editor_background,
14171 };
14172
14173 EditorElement::new(
14174 cx.view(),
14175 EditorStyle {
14176 background,
14177 local_player: cx.theme().players().local(),
14178 text: text_style,
14179 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14180 syntax: cx.theme().syntax().clone(),
14181 status: cx.theme().status().clone(),
14182 inlay_hints_style: make_inlay_hints_style(cx),
14183 inline_completion_styles: make_suggestion_styles(cx),
14184 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14185 },
14186 )
14187 }
14188}
14189
14190impl ViewInputHandler for Editor {
14191 fn text_for_range(
14192 &mut self,
14193 range_utf16: Range<usize>,
14194 adjusted_range: &mut Option<Range<usize>>,
14195 cx: &mut ViewContext<Self>,
14196 ) -> Option<String> {
14197 let snapshot = self.buffer.read(cx).read(cx);
14198 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14199 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14200 if (start.0..end.0) != range_utf16 {
14201 adjusted_range.replace(start.0..end.0);
14202 }
14203 Some(snapshot.text_for_range(start..end).collect())
14204 }
14205
14206 fn selected_text_range(
14207 &mut self,
14208 ignore_disabled_input: bool,
14209 cx: &mut ViewContext<Self>,
14210 ) -> Option<UTF16Selection> {
14211 // Prevent the IME menu from appearing when holding down an alphabetic key
14212 // while input is disabled.
14213 if !ignore_disabled_input && !self.input_enabled {
14214 return None;
14215 }
14216
14217 let selection = self.selections.newest::<OffsetUtf16>(cx);
14218 let range = selection.range();
14219
14220 Some(UTF16Selection {
14221 range: range.start.0..range.end.0,
14222 reversed: selection.reversed,
14223 })
14224 }
14225
14226 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14227 let snapshot = self.buffer.read(cx).read(cx);
14228 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14229 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14230 }
14231
14232 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14233 self.clear_highlights::<InputComposition>(cx);
14234 self.ime_transaction.take();
14235 }
14236
14237 fn replace_text_in_range(
14238 &mut self,
14239 range_utf16: Option<Range<usize>>,
14240 text: &str,
14241 cx: &mut ViewContext<Self>,
14242 ) {
14243 if !self.input_enabled {
14244 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14245 return;
14246 }
14247
14248 self.transact(cx, |this, cx| {
14249 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14250 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14251 Some(this.selection_replacement_ranges(range_utf16, cx))
14252 } else {
14253 this.marked_text_ranges(cx)
14254 };
14255
14256 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14257 let newest_selection_id = this.selections.newest_anchor().id;
14258 this.selections
14259 .all::<OffsetUtf16>(cx)
14260 .iter()
14261 .zip(ranges_to_replace.iter())
14262 .find_map(|(selection, range)| {
14263 if selection.id == newest_selection_id {
14264 Some(
14265 (range.start.0 as isize - selection.head().0 as isize)
14266 ..(range.end.0 as isize - selection.head().0 as isize),
14267 )
14268 } else {
14269 None
14270 }
14271 })
14272 });
14273
14274 cx.emit(EditorEvent::InputHandled {
14275 utf16_range_to_replace: range_to_replace,
14276 text: text.into(),
14277 });
14278
14279 if let Some(new_selected_ranges) = new_selected_ranges {
14280 this.change_selections(None, cx, |selections| {
14281 selections.select_ranges(new_selected_ranges)
14282 });
14283 this.backspace(&Default::default(), cx);
14284 }
14285
14286 this.handle_input(text, cx);
14287 });
14288
14289 if let Some(transaction) = self.ime_transaction {
14290 self.buffer.update(cx, |buffer, cx| {
14291 buffer.group_until_transaction(transaction, cx);
14292 });
14293 }
14294
14295 self.unmark_text(cx);
14296 }
14297
14298 fn replace_and_mark_text_in_range(
14299 &mut self,
14300 range_utf16: Option<Range<usize>>,
14301 text: &str,
14302 new_selected_range_utf16: Option<Range<usize>>,
14303 cx: &mut ViewContext<Self>,
14304 ) {
14305 if !self.input_enabled {
14306 return;
14307 }
14308
14309 let transaction = self.transact(cx, |this, cx| {
14310 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14311 let snapshot = this.buffer.read(cx).read(cx);
14312 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14313 for marked_range in &mut marked_ranges {
14314 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14315 marked_range.start.0 += relative_range_utf16.start;
14316 marked_range.start =
14317 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14318 marked_range.end =
14319 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14320 }
14321 }
14322 Some(marked_ranges)
14323 } else if let Some(range_utf16) = range_utf16 {
14324 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14325 Some(this.selection_replacement_ranges(range_utf16, cx))
14326 } else {
14327 None
14328 };
14329
14330 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14331 let newest_selection_id = this.selections.newest_anchor().id;
14332 this.selections
14333 .all::<OffsetUtf16>(cx)
14334 .iter()
14335 .zip(ranges_to_replace.iter())
14336 .find_map(|(selection, range)| {
14337 if selection.id == newest_selection_id {
14338 Some(
14339 (range.start.0 as isize - selection.head().0 as isize)
14340 ..(range.end.0 as isize - selection.head().0 as isize),
14341 )
14342 } else {
14343 None
14344 }
14345 })
14346 });
14347
14348 cx.emit(EditorEvent::InputHandled {
14349 utf16_range_to_replace: range_to_replace,
14350 text: text.into(),
14351 });
14352
14353 if let Some(ranges) = ranges_to_replace {
14354 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14355 }
14356
14357 let marked_ranges = {
14358 let snapshot = this.buffer.read(cx).read(cx);
14359 this.selections
14360 .disjoint_anchors()
14361 .iter()
14362 .map(|selection| {
14363 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14364 })
14365 .collect::<Vec<_>>()
14366 };
14367
14368 if text.is_empty() {
14369 this.unmark_text(cx);
14370 } else {
14371 this.highlight_text::<InputComposition>(
14372 marked_ranges.clone(),
14373 HighlightStyle {
14374 underline: Some(UnderlineStyle {
14375 thickness: px(1.),
14376 color: None,
14377 wavy: false,
14378 }),
14379 ..Default::default()
14380 },
14381 cx,
14382 );
14383 }
14384
14385 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14386 let use_autoclose = this.use_autoclose;
14387 let use_auto_surround = this.use_auto_surround;
14388 this.set_use_autoclose(false);
14389 this.set_use_auto_surround(false);
14390 this.handle_input(text, cx);
14391 this.set_use_autoclose(use_autoclose);
14392 this.set_use_auto_surround(use_auto_surround);
14393
14394 if let Some(new_selected_range) = new_selected_range_utf16 {
14395 let snapshot = this.buffer.read(cx).read(cx);
14396 let new_selected_ranges = marked_ranges
14397 .into_iter()
14398 .map(|marked_range| {
14399 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14400 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14401 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14402 snapshot.clip_offset_utf16(new_start, Bias::Left)
14403 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14404 })
14405 .collect::<Vec<_>>();
14406
14407 drop(snapshot);
14408 this.change_selections(None, cx, |selections| {
14409 selections.select_ranges(new_selected_ranges)
14410 });
14411 }
14412 });
14413
14414 self.ime_transaction = self.ime_transaction.or(transaction);
14415 if let Some(transaction) = self.ime_transaction {
14416 self.buffer.update(cx, |buffer, cx| {
14417 buffer.group_until_transaction(transaction, cx);
14418 });
14419 }
14420
14421 if self.text_highlights::<InputComposition>(cx).is_none() {
14422 self.ime_transaction.take();
14423 }
14424 }
14425
14426 fn bounds_for_range(
14427 &mut self,
14428 range_utf16: Range<usize>,
14429 element_bounds: gpui::Bounds<Pixels>,
14430 cx: &mut ViewContext<Self>,
14431 ) -> Option<gpui::Bounds<Pixels>> {
14432 let text_layout_details = self.text_layout_details(cx);
14433 let gpui::Point {
14434 x: em_width,
14435 y: line_height,
14436 } = self.character_size(cx);
14437
14438 let snapshot = self.snapshot(cx);
14439 let scroll_position = snapshot.scroll_position();
14440 let scroll_left = scroll_position.x * em_width;
14441
14442 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14443 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14444 + self.gutter_dimensions.width
14445 + self.gutter_dimensions.margin;
14446 let y = line_height * (start.row().as_f32() - scroll_position.y);
14447
14448 Some(Bounds {
14449 origin: element_bounds.origin + point(x, y),
14450 size: size(em_width, line_height),
14451 })
14452 }
14453}
14454
14455trait SelectionExt {
14456 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14457 fn spanned_rows(
14458 &self,
14459 include_end_if_at_line_start: bool,
14460 map: &DisplaySnapshot,
14461 ) -> Range<MultiBufferRow>;
14462}
14463
14464impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14465 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14466 let start = self
14467 .start
14468 .to_point(&map.buffer_snapshot)
14469 .to_display_point(map);
14470 let end = self
14471 .end
14472 .to_point(&map.buffer_snapshot)
14473 .to_display_point(map);
14474 if self.reversed {
14475 end..start
14476 } else {
14477 start..end
14478 }
14479 }
14480
14481 fn spanned_rows(
14482 &self,
14483 include_end_if_at_line_start: bool,
14484 map: &DisplaySnapshot,
14485 ) -> Range<MultiBufferRow> {
14486 let start = self.start.to_point(&map.buffer_snapshot);
14487 let mut end = self.end.to_point(&map.buffer_snapshot);
14488 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14489 end.row -= 1;
14490 }
14491
14492 let buffer_start = map.prev_line_boundary(start).0;
14493 let buffer_end = map.next_line_boundary(end).0;
14494 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14495 }
14496}
14497
14498impl<T: InvalidationRegion> InvalidationStack<T> {
14499 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14500 where
14501 S: Clone + ToOffset,
14502 {
14503 while let Some(region) = self.last() {
14504 let all_selections_inside_invalidation_ranges =
14505 if selections.len() == region.ranges().len() {
14506 selections
14507 .iter()
14508 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14509 .all(|(selection, invalidation_range)| {
14510 let head = selection.head().to_offset(buffer);
14511 invalidation_range.start <= head && invalidation_range.end >= head
14512 })
14513 } else {
14514 false
14515 };
14516
14517 if all_selections_inside_invalidation_ranges {
14518 break;
14519 } else {
14520 self.pop();
14521 }
14522 }
14523 }
14524}
14525
14526impl<T> Default for InvalidationStack<T> {
14527 fn default() -> Self {
14528 Self(Default::default())
14529 }
14530}
14531
14532impl<T> Deref for InvalidationStack<T> {
14533 type Target = Vec<T>;
14534
14535 fn deref(&self) -> &Self::Target {
14536 &self.0
14537 }
14538}
14539
14540impl<T> DerefMut for InvalidationStack<T> {
14541 fn deref_mut(&mut self) -> &mut Self::Target {
14542 &mut self.0
14543 }
14544}
14545
14546impl InvalidationRegion for SnippetState {
14547 fn ranges(&self) -> &[Range<Anchor>] {
14548 &self.ranges[self.active_index]
14549 }
14550}
14551
14552pub fn diagnostic_block_renderer(
14553 diagnostic: Diagnostic,
14554 max_message_rows: Option<u8>,
14555 allow_closing: bool,
14556 _is_valid: bool,
14557) -> RenderBlock {
14558 let (text_without_backticks, code_ranges) =
14559 highlight_diagnostic_message(&diagnostic, max_message_rows);
14560
14561 Arc::new(move |cx: &mut BlockContext| {
14562 let group_id: SharedString = cx.block_id.to_string().into();
14563
14564 let mut text_style = cx.text_style().clone();
14565 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14566 let theme_settings = ThemeSettings::get_global(cx);
14567 text_style.font_family = theme_settings.buffer_font.family.clone();
14568 text_style.font_style = theme_settings.buffer_font.style;
14569 text_style.font_features = theme_settings.buffer_font.features.clone();
14570 text_style.font_weight = theme_settings.buffer_font.weight;
14571
14572 let multi_line_diagnostic = diagnostic.message.contains('\n');
14573
14574 let buttons = |diagnostic: &Diagnostic| {
14575 if multi_line_diagnostic {
14576 v_flex()
14577 } else {
14578 h_flex()
14579 }
14580 .when(allow_closing, |div| {
14581 div.children(diagnostic.is_primary.then(|| {
14582 IconButton::new("close-block", IconName::XCircle)
14583 .icon_color(Color::Muted)
14584 .size(ButtonSize::Compact)
14585 .style(ButtonStyle::Transparent)
14586 .visible_on_hover(group_id.clone())
14587 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14588 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14589 }))
14590 })
14591 .child(
14592 IconButton::new("copy-block", IconName::Copy)
14593 .icon_color(Color::Muted)
14594 .size(ButtonSize::Compact)
14595 .style(ButtonStyle::Transparent)
14596 .visible_on_hover(group_id.clone())
14597 .on_click({
14598 let message = diagnostic.message.clone();
14599 move |_click, cx| {
14600 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14601 }
14602 })
14603 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14604 )
14605 };
14606
14607 let icon_size = buttons(&diagnostic)
14608 .into_any_element()
14609 .layout_as_root(AvailableSpace::min_size(), cx);
14610
14611 h_flex()
14612 .id(cx.block_id)
14613 .group(group_id.clone())
14614 .relative()
14615 .size_full()
14616 .block_mouse_down()
14617 .pl(cx.gutter_dimensions.width)
14618 .w(cx.max_width - cx.gutter_dimensions.full_width())
14619 .child(
14620 div()
14621 .flex()
14622 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14623 .flex_shrink(),
14624 )
14625 .child(buttons(&diagnostic))
14626 .child(div().flex().flex_shrink_0().child(
14627 StyledText::new(text_without_backticks.clone()).with_highlights(
14628 &text_style,
14629 code_ranges.iter().map(|range| {
14630 (
14631 range.clone(),
14632 HighlightStyle {
14633 font_weight: Some(FontWeight::BOLD),
14634 ..Default::default()
14635 },
14636 )
14637 }),
14638 ),
14639 ))
14640 .into_any_element()
14641 })
14642}
14643
14644fn inline_completion_edit_text(
14645 editor_snapshot: &EditorSnapshot,
14646 edits: &Vec<(Range<Anchor>, String)>,
14647 include_deletions: bool,
14648 cx: &WindowContext,
14649) -> InlineCompletionText {
14650 let edit_start = edits
14651 .first()
14652 .unwrap()
14653 .0
14654 .start
14655 .to_display_point(editor_snapshot);
14656
14657 let mut text = String::new();
14658 let mut offset = DisplayPoint::new(edit_start.row(), 0).to_offset(editor_snapshot, Bias::Left);
14659 let mut highlights = Vec::new();
14660 for (old_range, new_text) in edits {
14661 let old_offset_range = old_range.to_offset(&editor_snapshot.buffer_snapshot);
14662 text.extend(
14663 editor_snapshot
14664 .buffer_snapshot
14665 .chunks(offset..old_offset_range.start, false)
14666 .map(|chunk| chunk.text),
14667 );
14668 offset = old_offset_range.end;
14669
14670 let start = text.len();
14671 let color = if include_deletions && new_text.is_empty() {
14672 text.extend(
14673 editor_snapshot
14674 .buffer_snapshot
14675 .chunks(old_offset_range.start..offset, false)
14676 .map(|chunk| chunk.text),
14677 );
14678 cx.theme().status().deleted_background
14679 } else {
14680 text.push_str(new_text);
14681 cx.theme().status().created_background
14682 };
14683 let end = text.len();
14684
14685 highlights.push((
14686 start..end,
14687 HighlightStyle {
14688 background_color: Some(color),
14689 ..Default::default()
14690 },
14691 ));
14692 }
14693
14694 let edit_end = edits
14695 .last()
14696 .unwrap()
14697 .0
14698 .end
14699 .to_display_point(editor_snapshot);
14700 let end_of_line = DisplayPoint::new(edit_end.row(), editor_snapshot.line_len(edit_end.row()))
14701 .to_offset(editor_snapshot, Bias::Right);
14702 text.extend(
14703 editor_snapshot
14704 .buffer_snapshot
14705 .chunks(offset..end_of_line, false)
14706 .map(|chunk| chunk.text),
14707 );
14708
14709 InlineCompletionText::Edit {
14710 text: text.into(),
14711 highlights,
14712 }
14713}
14714
14715pub fn highlight_diagnostic_message(
14716 diagnostic: &Diagnostic,
14717 mut max_message_rows: Option<u8>,
14718) -> (SharedString, Vec<Range<usize>>) {
14719 let mut text_without_backticks = String::new();
14720 let mut code_ranges = Vec::new();
14721
14722 if let Some(source) = &diagnostic.source {
14723 text_without_backticks.push_str(source);
14724 code_ranges.push(0..source.len());
14725 text_without_backticks.push_str(": ");
14726 }
14727
14728 let mut prev_offset = 0;
14729 let mut in_code_block = false;
14730 let has_row_limit = max_message_rows.is_some();
14731 let mut newline_indices = diagnostic
14732 .message
14733 .match_indices('\n')
14734 .filter(|_| has_row_limit)
14735 .map(|(ix, _)| ix)
14736 .fuse()
14737 .peekable();
14738
14739 for (quote_ix, _) in diagnostic
14740 .message
14741 .match_indices('`')
14742 .chain([(diagnostic.message.len(), "")])
14743 {
14744 let mut first_newline_ix = None;
14745 let mut last_newline_ix = None;
14746 while let Some(newline_ix) = newline_indices.peek() {
14747 if *newline_ix < quote_ix {
14748 if first_newline_ix.is_none() {
14749 first_newline_ix = Some(*newline_ix);
14750 }
14751 last_newline_ix = Some(*newline_ix);
14752
14753 if let Some(rows_left) = &mut max_message_rows {
14754 if *rows_left == 0 {
14755 break;
14756 } else {
14757 *rows_left -= 1;
14758 }
14759 }
14760 let _ = newline_indices.next();
14761 } else {
14762 break;
14763 }
14764 }
14765 let prev_len = text_without_backticks.len();
14766 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14767 text_without_backticks.push_str(new_text);
14768 if in_code_block {
14769 code_ranges.push(prev_len..text_without_backticks.len());
14770 }
14771 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14772 in_code_block = !in_code_block;
14773 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14774 text_without_backticks.push_str("...");
14775 break;
14776 }
14777 }
14778
14779 (text_without_backticks.into(), code_ranges)
14780}
14781
14782fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14783 match severity {
14784 DiagnosticSeverity::ERROR => colors.error,
14785 DiagnosticSeverity::WARNING => colors.warning,
14786 DiagnosticSeverity::INFORMATION => colors.info,
14787 DiagnosticSeverity::HINT => colors.info,
14788 _ => colors.ignored,
14789 }
14790}
14791
14792pub fn styled_runs_for_code_label<'a>(
14793 label: &'a CodeLabel,
14794 syntax_theme: &'a theme::SyntaxTheme,
14795) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14796 let fade_out = HighlightStyle {
14797 fade_out: Some(0.35),
14798 ..Default::default()
14799 };
14800
14801 let mut prev_end = label.filter_range.end;
14802 label
14803 .runs
14804 .iter()
14805 .enumerate()
14806 .flat_map(move |(ix, (range, highlight_id))| {
14807 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14808 style
14809 } else {
14810 return Default::default();
14811 };
14812 let mut muted_style = style;
14813 muted_style.highlight(fade_out);
14814
14815 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14816 if range.start >= label.filter_range.end {
14817 if range.start > prev_end {
14818 runs.push((prev_end..range.start, fade_out));
14819 }
14820 runs.push((range.clone(), muted_style));
14821 } else if range.end <= label.filter_range.end {
14822 runs.push((range.clone(), style));
14823 } else {
14824 runs.push((range.start..label.filter_range.end, style));
14825 runs.push((label.filter_range.end..range.end, muted_style));
14826 }
14827 prev_end = cmp::max(prev_end, range.end);
14828
14829 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14830 runs.push((prev_end..label.text.len(), fade_out));
14831 }
14832
14833 runs
14834 })
14835}
14836
14837pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14838 let mut prev_index = 0;
14839 let mut prev_codepoint: Option<char> = None;
14840 text.char_indices()
14841 .chain([(text.len(), '\0')])
14842 .filter_map(move |(index, codepoint)| {
14843 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14844 let is_boundary = index == text.len()
14845 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14846 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14847 if is_boundary {
14848 let chunk = &text[prev_index..index];
14849 prev_index = index;
14850 Some(chunk)
14851 } else {
14852 None
14853 }
14854 })
14855}
14856
14857pub trait RangeToAnchorExt: Sized {
14858 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14859
14860 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14861 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14862 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14863 }
14864}
14865
14866impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14867 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14868 let start_offset = self.start.to_offset(snapshot);
14869 let end_offset = self.end.to_offset(snapshot);
14870 if start_offset == end_offset {
14871 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14872 } else {
14873 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14874 }
14875 }
14876}
14877
14878pub trait RowExt {
14879 fn as_f32(&self) -> f32;
14880
14881 fn next_row(&self) -> Self;
14882
14883 fn previous_row(&self) -> Self;
14884
14885 fn minus(&self, other: Self) -> u32;
14886}
14887
14888impl RowExt for DisplayRow {
14889 fn as_f32(&self) -> f32 {
14890 self.0 as f32
14891 }
14892
14893 fn next_row(&self) -> Self {
14894 Self(self.0 + 1)
14895 }
14896
14897 fn previous_row(&self) -> Self {
14898 Self(self.0.saturating_sub(1))
14899 }
14900
14901 fn minus(&self, other: Self) -> u32 {
14902 self.0 - other.0
14903 }
14904}
14905
14906impl RowExt for MultiBufferRow {
14907 fn as_f32(&self) -> f32 {
14908 self.0 as f32
14909 }
14910
14911 fn next_row(&self) -> Self {
14912 Self(self.0 + 1)
14913 }
14914
14915 fn previous_row(&self) -> Self {
14916 Self(self.0.saturating_sub(1))
14917 }
14918
14919 fn minus(&self, other: Self) -> u32 {
14920 self.0 - other.0
14921 }
14922}
14923
14924trait RowRangeExt {
14925 type Row;
14926
14927 fn len(&self) -> usize;
14928
14929 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14930}
14931
14932impl RowRangeExt for Range<MultiBufferRow> {
14933 type Row = MultiBufferRow;
14934
14935 fn len(&self) -> usize {
14936 (self.end.0 - self.start.0) as usize
14937 }
14938
14939 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14940 (self.start.0..self.end.0).map(MultiBufferRow)
14941 }
14942}
14943
14944impl RowRangeExt for Range<DisplayRow> {
14945 type Row = DisplayRow;
14946
14947 fn len(&self) -> usize {
14948 (self.end.0 - self.start.0) as usize
14949 }
14950
14951 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14952 (self.start.0..self.end.0).map(DisplayRow)
14953 }
14954}
14955
14956fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14957 if hunk.diff_base_byte_range.is_empty() {
14958 DiffHunkStatus::Added
14959 } else if hunk.row_range.is_empty() {
14960 DiffHunkStatus::Removed
14961 } else {
14962 DiffHunkStatus::Modified
14963 }
14964}
14965
14966/// If select range has more than one line, we
14967/// just point the cursor to range.start.
14968fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14969 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14970 range
14971 } else {
14972 range.start..range.start
14973 }
14974}
14975
14976pub struct KillRing(ClipboardItem);
14977impl Global for KillRing {}
14978
14979const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);