1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behavior.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18mod clangd_ext;
19mod debounced_delay;
20pub mod display_map;
21mod editor_settings;
22mod editor_settings_controls;
23mod element;
24mod git;
25mod highlight_matching_bracket;
26mod hover_links;
27mod hover_popover;
28mod hunk_diff;
29mod indent_guides;
30mod inlay_hint_cache;
31mod inline_completion_provider;
32pub mod items;
33mod linked_editing_ranges;
34mod lsp_ext;
35mod mouse_context_menu;
36pub mod movement;
37mod persistence;
38mod proposed_changes_editor;
39mod rust_analyzer_ext;
40pub mod scroll;
41mod selections_collection;
42pub mod tasks;
43
44#[cfg(test)]
45mod editor_tests;
46mod signature_help;
47#[cfg(any(test, feature = "test-support"))]
48pub mod test;
49
50use ::git::diff::DiffHunkStatus;
51use ::git::{parse_git_remote_url, BuildPermalinkParams, GitHostingProviderRegistry};
52pub(crate) use actions::*;
53use aho_corasick::AhoCorasick;
54use anyhow::{anyhow, Context as _, Result};
55use blink_manager::BlinkManager;
56use client::{Collaborator, ParticipantIndex};
57use clock::ReplicaId;
58use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
59use convert_case::{Case, Casing};
60use debounced_delay::DebouncedDelay;
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::{StringMatch, StringMatchCandidate};
73use git::blame::GitBlame;
74use gpui::{
75 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
76 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardEntry,
77 ClipboardItem, Context, DispatchPhase, ElementId, EntityId, EventEmitter, FocusHandle,
78 FocusOutEvent, FocusableView, FontId, FontWeight, HighlightStyle, Hsla, InteractiveText,
79 KeyContext, ListSizingBehavior, Model, MouseButton, PaintQuad, ParentElement, Pixels, Render,
80 SharedString, Size, StrikethroughStyle, Styled, StyledText, Subscription, Task, TextStyle,
81 UTF16Selection, UnderlineStyle, UniformListScrollHandle, View, ViewContext, ViewInputHandler,
82 VisualContext, WeakFocusHandle, WeakView, WindowContext,
83};
84use highlight_matching_bracket::refresh_matching_bracket_highlights;
85use hover_popover::{hide_hover, HoverState};
86pub(crate) use hunk_diff::HoveredHunk;
87use hunk_diff::{diff_hunk_to_display, ExpandedHunks};
88use indent_guides::ActiveIndentGuidesState;
89use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
90pub use inline_completion_provider::*;
91pub use items::MAX_TAB_TITLE_LEN;
92use itertools::Itertools;
93use language::{
94 language_settings::{self, all_language_settings, InlayHintSettings},
95 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
96 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
97 Point, Selection, SelectionGoal, TransactionId,
98};
99use language::{point_to_lsp, BufferRow, CharClassifier, Runnable, RunnableRange};
100use linked_editing_ranges::refresh_linked_ranges;
101pub use proposed_changes_editor::{
102 ProposedChangesBuffer, ProposedChangesEditor, ProposedChangesEditorToolbar,
103};
104use similar::{ChangeTag, TextDiff};
105use task::{ResolvedTask, TaskTemplate, TaskVariables};
106
107use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
108pub use lsp::CompletionContext;
109use lsp::{
110 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
111 LanguageServerId,
112};
113use mouse_context_menu::MouseContextMenu;
114use movement::TextLayoutDetails;
115pub use multi_buffer::{
116 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
117 ToPoint,
118};
119use multi_buffer::{
120 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
121};
122use ordered_float::OrderedFloat;
123use parking_lot::{Mutex, RwLock};
124use project::project_settings::{GitGutterSetting, ProjectSettings};
125use project::{
126 lsp_store::FormatTrigger, CodeAction, Completion, CompletionIntent, Item, Location, Project,
127 ProjectPath, ProjectTransaction, TaskSourceKind,
128};
129use rand::prelude::*;
130use rpc::{proto::*, ErrorExt};
131use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
132use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
133use serde::{Deserialize, Serialize};
134use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
135use smallvec::SmallVec;
136use snippet::Snippet;
137use std::{
138 any::TypeId,
139 borrow::Cow,
140 cell::RefCell,
141 cmp::{self, Ordering, Reverse},
142 mem,
143 num::NonZeroU32,
144 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
145 path::{Path, PathBuf},
146 rc::Rc,
147 sync::Arc,
148 time::{Duration, Instant},
149};
150pub use sum_tree::Bias;
151use sum_tree::TreeMap;
152use text::{BufferId, OffsetUtf16, Rope};
153use theme::{
154 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
155 ThemeColors, ThemeSettings,
156};
157use ui::{
158 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
159 ListItem, Popover, PopoverMenuHandle, Tooltip,
160};
161use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
162use workspace::item::{ItemHandle, PreviewTabsSettings};
163use workspace::notifications::{DetachAndPromptErr, NotificationId};
164use workspace::{
165 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
166};
167use workspace::{OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
168
169use crate::hover_links::find_url;
170use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
171
172pub const FILE_HEADER_HEIGHT: u32 = 1;
173pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
174pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
175pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
176const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
177const MAX_LINE_LEN: usize = 1024;
178const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
179const MAX_SELECTION_HISTORY_LEN: usize = 1024;
180pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
181#[doc(hidden)]
182pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
183#[doc(hidden)]
184pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
185
186pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
187pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
188
189pub fn render_parsed_markdown(
190 element_id: impl Into<ElementId>,
191 parsed: &language::ParsedMarkdown,
192 editor_style: &EditorStyle,
193 workspace: Option<WeakView<Workspace>>,
194 cx: &mut WindowContext,
195) -> InteractiveText {
196 let code_span_background_color = cx
197 .theme()
198 .colors()
199 .editor_document_highlight_read_background;
200
201 let highlights = gpui::combine_highlights(
202 parsed.highlights.iter().filter_map(|(range, highlight)| {
203 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
204 Some((range.clone(), highlight))
205 }),
206 parsed
207 .regions
208 .iter()
209 .zip(&parsed.region_ranges)
210 .filter_map(|(region, range)| {
211 if region.code {
212 Some((
213 range.clone(),
214 HighlightStyle {
215 background_color: Some(code_span_background_color),
216 ..Default::default()
217 },
218 ))
219 } else {
220 None
221 }
222 }),
223 );
224
225 let mut links = Vec::new();
226 let mut link_ranges = Vec::new();
227 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
228 if let Some(link) = region.link.clone() {
229 links.push(link);
230 link_ranges.push(range.clone());
231 }
232 }
233
234 InteractiveText::new(
235 element_id,
236 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
237 )
238 .on_click(link_ranges, move |clicked_range_ix, cx| {
239 match &links[clicked_range_ix] {
240 markdown::Link::Web { url } => cx.open_url(url),
241 markdown::Link::Path { path } => {
242 if let Some(workspace) = &workspace {
243 _ = workspace.update(cx, |workspace, cx| {
244 workspace.open_abs_path(path.clone(), false, cx).detach();
245 });
246 }
247 }
248 }
249 })
250}
251
252#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
253pub(crate) enum InlayId {
254 Suggestion(usize),
255 Hint(usize),
256}
257
258impl InlayId {
259 fn id(&self) -> usize {
260 match self {
261 Self::Suggestion(id) => *id,
262 Self::Hint(id) => *id,
263 }
264 }
265}
266
267enum DiffRowHighlight {}
268enum DocumentHighlightRead {}
269enum DocumentHighlightWrite {}
270enum InputComposition {}
271
272#[derive(Copy, Clone, PartialEq, Eq)]
273pub enum Direction {
274 Prev,
275 Next,
276}
277
278#[derive(Debug, Copy, Clone, PartialEq, Eq)]
279pub enum Navigated {
280 Yes,
281 No,
282}
283
284impl Navigated {
285 pub fn from_bool(yes: bool) -> Navigated {
286 if yes {
287 Navigated::Yes
288 } else {
289 Navigated::No
290 }
291 }
292}
293
294pub fn init_settings(cx: &mut AppContext) {
295 EditorSettings::register(cx);
296}
297
298pub fn init(cx: &mut AppContext) {
299 init_settings(cx);
300
301 workspace::register_project_item::<Editor>(cx);
302 workspace::FollowableViewRegistry::register::<Editor>(cx);
303 workspace::register_serializable_item::<Editor>(cx);
304
305 cx.observe_new_views(
306 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
307 workspace.register_action(Editor::new_file);
308 workspace.register_action(Editor::new_file_vertical);
309 workspace.register_action(Editor::new_file_horizontal);
310 },
311 )
312 .detach();
313
314 cx.on_action(move |_: &workspace::NewFile, cx| {
315 let app_state = workspace::AppState::global(cx);
316 if let Some(app_state) = app_state.upgrade() {
317 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
318 Editor::new_file(workspace, &Default::default(), cx)
319 })
320 .detach();
321 }
322 });
323 cx.on_action(move |_: &workspace::NewWindow, cx| {
324 let app_state = workspace::AppState::global(cx);
325 if let Some(app_state) = app_state.upgrade() {
326 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
327 Editor::new_file(workspace, &Default::default(), cx)
328 })
329 .detach();
330 }
331 });
332}
333
334pub struct SearchWithinRange;
335
336trait InvalidationRegion {
337 fn ranges(&self) -> &[Range<Anchor>];
338}
339
340#[derive(Clone, Debug, PartialEq)]
341pub enum SelectPhase {
342 Begin {
343 position: DisplayPoint,
344 add: bool,
345 click_count: usize,
346 },
347 BeginColumnar {
348 position: DisplayPoint,
349 reset: bool,
350 goal_column: u32,
351 },
352 Extend {
353 position: DisplayPoint,
354 click_count: usize,
355 },
356 Update {
357 position: DisplayPoint,
358 goal_column: u32,
359 scroll_delta: gpui::Point<f32>,
360 },
361 End,
362}
363
364#[derive(Clone, Debug)]
365pub enum SelectMode {
366 Character,
367 Word(Range<Anchor>),
368 Line(Range<Anchor>),
369 All,
370}
371
372#[derive(Copy, Clone, PartialEq, Eq, Debug)]
373pub enum EditorMode {
374 SingleLine { auto_width: bool },
375 AutoHeight { max_lines: usize },
376 Full,
377}
378
379#[derive(Copy, Clone, Debug)]
380pub enum SoftWrap {
381 /// Prefer not to wrap at all.
382 ///
383 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
384 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
385 GitDiff,
386 /// Prefer a single line generally, unless an overly long line is encountered.
387 None,
388 /// Soft wrap lines that exceed the editor width.
389 EditorWidth,
390 /// Soft wrap lines at the preferred line length.
391 Column(u32),
392 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
393 Bounded(u32),
394}
395
396#[derive(Clone)]
397pub struct EditorStyle {
398 pub background: Hsla,
399 pub local_player: PlayerColor,
400 pub text: TextStyle,
401 pub scrollbar_width: Pixels,
402 pub syntax: Arc<SyntaxTheme>,
403 pub status: StatusColors,
404 pub inlay_hints_style: HighlightStyle,
405 pub suggestions_style: HighlightStyle,
406 pub unnecessary_code_fade: f32,
407}
408
409impl Default for EditorStyle {
410 fn default() -> Self {
411 Self {
412 background: Hsla::default(),
413 local_player: PlayerColor::default(),
414 text: TextStyle::default(),
415 scrollbar_width: Pixels::default(),
416 syntax: Default::default(),
417 // HACK: Status colors don't have a real default.
418 // We should look into removing the status colors from the editor
419 // style and retrieve them directly from the theme.
420 status: StatusColors::dark(),
421 inlay_hints_style: HighlightStyle::default(),
422 suggestions_style: HighlightStyle::default(),
423 unnecessary_code_fade: Default::default(),
424 }
425 }
426}
427
428pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
429 let show_background = all_language_settings(None, cx)
430 .language(None)
431 .inlay_hints
432 .show_background;
433
434 HighlightStyle {
435 color: Some(cx.theme().status().hint),
436 background_color: show_background.then(|| cx.theme().status().hint_background),
437 ..HighlightStyle::default()
438 }
439}
440
441type CompletionId = usize;
442
443#[derive(Clone, Debug)]
444struct CompletionState {
445 // render_inlay_ids represents the inlay hints that are inserted
446 // for rendering the inline completions. They may be discontinuous
447 // in the event that the completion provider returns some intersection
448 // with the existing content.
449 render_inlay_ids: Vec<InlayId>,
450 // text is the resulting rope that is inserted when the user accepts a completion.
451 text: Rope,
452 // position is the position of the cursor when the completion was triggered.
453 position: multi_buffer::Anchor,
454 // delete_range is the range of text that this completion state covers.
455 // if the completion is accepted, this range should be deleted.
456 delete_range: Option<Range<multi_buffer::Anchor>>,
457}
458
459#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
460struct EditorActionId(usize);
461
462impl EditorActionId {
463 pub fn post_inc(&mut self) -> Self {
464 let answer = self.0;
465
466 *self = Self(answer + 1);
467
468 Self(answer)
469 }
470}
471
472// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
473// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
474
475type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
476type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
477
478#[derive(Default)]
479struct ScrollbarMarkerState {
480 scrollbar_size: Size<Pixels>,
481 dirty: bool,
482 markers: Arc<[PaintQuad]>,
483 pending_refresh: Option<Task<Result<()>>>,
484}
485
486impl ScrollbarMarkerState {
487 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
488 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
489 }
490}
491
492#[derive(Clone, Debug)]
493struct RunnableTasks {
494 templates: Vec<(TaskSourceKind, TaskTemplate)>,
495 offset: MultiBufferOffset,
496 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
497 column: u32,
498 // Values of all named captures, including those starting with '_'
499 extra_variables: HashMap<String, String>,
500 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
501 context_range: Range<BufferOffset>,
502}
503
504#[derive(Clone)]
505struct ResolvedTasks {
506 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
507 position: Anchor,
508}
509#[derive(Copy, Clone, Debug)]
510struct MultiBufferOffset(usize);
511#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
512struct BufferOffset(usize);
513
514// Addons allow storing per-editor state in other crates (e.g. Vim)
515pub trait Addon: 'static {
516 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
517
518 fn to_any(&self) -> &dyn std::any::Any;
519}
520
521/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
522///
523/// See the [module level documentation](self) for more information.
524pub struct Editor {
525 focus_handle: FocusHandle,
526 last_focused_descendant: Option<WeakFocusHandle>,
527 /// The text buffer being edited
528 buffer: Model<MultiBuffer>,
529 /// Map of how text in the buffer should be displayed.
530 /// Handles soft wraps, folds, fake inlay text insertions, etc.
531 pub display_map: Model<DisplayMap>,
532 pub selections: SelectionsCollection,
533 pub scroll_manager: ScrollManager,
534 /// When inline assist editors are linked, they all render cursors because
535 /// typing enters text into each of them, even the ones that aren't focused.
536 pub(crate) show_cursor_when_unfocused: bool,
537 columnar_selection_tail: Option<Anchor>,
538 add_selections_state: Option<AddSelectionsState>,
539 select_next_state: Option<SelectNextState>,
540 select_prev_state: Option<SelectNextState>,
541 selection_history: SelectionHistory,
542 autoclose_regions: Vec<AutocloseRegion>,
543 snippet_stack: InvalidationStack<SnippetState>,
544 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
545 ime_transaction: Option<TransactionId>,
546 active_diagnostics: Option<ActiveDiagnosticGroup>,
547 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
548 project: Option<Model<Project>>,
549 completion_provider: Option<Box<dyn CompletionProvider>>,
550 collaboration_hub: Option<Box<dyn CollaborationHub>>,
551 blink_manager: Model<BlinkManager>,
552 show_cursor_names: bool,
553 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
554 pub show_local_selections: bool,
555 mode: EditorMode,
556 show_breadcrumbs: bool,
557 show_gutter: bool,
558 show_line_numbers: Option<bool>,
559 use_relative_line_numbers: Option<bool>,
560 show_git_diff_gutter: Option<bool>,
561 show_code_actions: Option<bool>,
562 show_runnables: Option<bool>,
563 show_wrap_guides: Option<bool>,
564 show_indent_guides: Option<bool>,
565 placeholder_text: Option<Arc<str>>,
566 highlight_order: usize,
567 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
568 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
569 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
570 scrollbar_marker_state: ScrollbarMarkerState,
571 active_indent_guides_state: ActiveIndentGuidesState,
572 nav_history: Option<ItemNavHistory>,
573 context_menu: RwLock<Option<ContextMenu>>,
574 mouse_context_menu: Option<MouseContextMenu>,
575 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
576 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
577 signature_help_state: SignatureHelpState,
578 auto_signature_help: Option<bool>,
579 find_all_references_task_sources: Vec<Anchor>,
580 next_completion_id: CompletionId,
581 completion_documentation_pre_resolve_debounce: DebouncedDelay,
582 available_code_actions: Option<(Location, Arc<[AvailableCodeAction]>)>,
583 code_actions_task: Option<Task<Result<()>>>,
584 document_highlights_task: Option<Task<()>>,
585 linked_editing_range_task: Option<Task<Option<()>>>,
586 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
587 pending_rename: Option<RenameState>,
588 searchable: bool,
589 cursor_shape: CursorShape,
590 current_line_highlight: Option<CurrentLineHighlight>,
591 collapse_matches: bool,
592 autoindent_mode: Option<AutoindentMode>,
593 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
594 input_enabled: bool,
595 use_modal_editing: bool,
596 read_only: bool,
597 leader_peer_id: Option<PeerId>,
598 remote_id: Option<ViewId>,
599 hover_state: HoverState,
600 gutter_hovered: bool,
601 hovered_link_state: Option<HoveredLinkState>,
602 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
603 code_action_providers: Vec<Arc<dyn CodeActionProvider>>,
604 active_inline_completion: Option<CompletionState>,
605 // enable_inline_completions is a switch that Vim can use to disable
606 // inline completions based on its mode.
607 enable_inline_completions: bool,
608 show_inline_completions_override: Option<bool>,
609 inlay_hint_cache: InlayHintCache,
610 expanded_hunks: ExpandedHunks,
611 next_inlay_id: usize,
612 _subscriptions: Vec<Subscription>,
613 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
614 gutter_dimensions: GutterDimensions,
615 style: Option<EditorStyle>,
616 next_editor_action_id: EditorActionId,
617 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
618 use_autoclose: bool,
619 use_auto_surround: bool,
620 auto_replace_emoji_shortcode: bool,
621 show_git_blame_gutter: bool,
622 show_git_blame_inline: bool,
623 show_git_blame_inline_delay_task: Option<Task<()>>,
624 git_blame_inline_enabled: bool,
625 serialize_dirty_buffers: bool,
626 show_selection_menu: Option<bool>,
627 blame: Option<Model<GitBlame>>,
628 blame_subscription: Option<Subscription>,
629 custom_context_menu: Option<
630 Box<
631 dyn 'static
632 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
633 >,
634 >,
635 last_bounds: Option<Bounds<Pixels>>,
636 expect_bounds_change: Option<Bounds<Pixels>>,
637 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
638 tasks_update_task: Option<Task<()>>,
639 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
640 file_header_size: u32,
641 breadcrumb_header: Option<String>,
642 focused_block: Option<FocusedBlock>,
643 next_scroll_position: NextScrollCursorCenterTopBottom,
644 addons: HashMap<TypeId, Box<dyn Addon>>,
645 _scroll_cursor_center_top_bottom_task: Task<()>,
646}
647
648#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
649enum NextScrollCursorCenterTopBottom {
650 #[default]
651 Center,
652 Top,
653 Bottom,
654}
655
656impl NextScrollCursorCenterTopBottom {
657 fn next(&self) -> Self {
658 match self {
659 Self::Center => Self::Top,
660 Self::Top => Self::Bottom,
661 Self::Bottom => Self::Center,
662 }
663 }
664}
665
666#[derive(Clone)]
667pub struct EditorSnapshot {
668 pub mode: EditorMode,
669 show_gutter: bool,
670 show_line_numbers: Option<bool>,
671 show_git_diff_gutter: Option<bool>,
672 show_code_actions: Option<bool>,
673 show_runnables: Option<bool>,
674 git_blame_gutter_max_author_length: Option<usize>,
675 pub display_snapshot: DisplaySnapshot,
676 pub placeholder_text: Option<Arc<str>>,
677 is_focused: bool,
678 scroll_anchor: ScrollAnchor,
679 ongoing_scroll: OngoingScroll,
680 current_line_highlight: CurrentLineHighlight,
681 gutter_hovered: bool,
682}
683
684const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
685
686#[derive(Default, Debug, Clone, Copy)]
687pub struct GutterDimensions {
688 pub left_padding: Pixels,
689 pub right_padding: Pixels,
690 pub width: Pixels,
691 pub margin: Pixels,
692 pub git_blame_entries_width: Option<Pixels>,
693}
694
695impl GutterDimensions {
696 /// The full width of the space taken up by the gutter.
697 pub fn full_width(&self) -> Pixels {
698 self.margin + self.width
699 }
700
701 /// The width of the space reserved for the fold indicators,
702 /// use alongside 'justify_end' and `gutter_width` to
703 /// right align content with the line numbers
704 pub fn fold_area_width(&self) -> Pixels {
705 self.margin + self.right_padding
706 }
707}
708
709#[derive(Debug)]
710pub struct RemoteSelection {
711 pub replica_id: ReplicaId,
712 pub selection: Selection<Anchor>,
713 pub cursor_shape: CursorShape,
714 pub peer_id: PeerId,
715 pub line_mode: bool,
716 pub participant_index: Option<ParticipantIndex>,
717 pub user_name: Option<SharedString>,
718}
719
720#[derive(Clone, Debug)]
721struct SelectionHistoryEntry {
722 selections: Arc<[Selection<Anchor>]>,
723 select_next_state: Option<SelectNextState>,
724 select_prev_state: Option<SelectNextState>,
725 add_selections_state: Option<AddSelectionsState>,
726}
727
728enum SelectionHistoryMode {
729 Normal,
730 Undoing,
731 Redoing,
732}
733
734#[derive(Clone, PartialEq, Eq, Hash)]
735struct HoveredCursor {
736 replica_id: u16,
737 selection_id: usize,
738}
739
740impl Default for SelectionHistoryMode {
741 fn default() -> Self {
742 Self::Normal
743 }
744}
745
746#[derive(Default)]
747struct SelectionHistory {
748 #[allow(clippy::type_complexity)]
749 selections_by_transaction:
750 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
751 mode: SelectionHistoryMode,
752 undo_stack: VecDeque<SelectionHistoryEntry>,
753 redo_stack: VecDeque<SelectionHistoryEntry>,
754}
755
756impl SelectionHistory {
757 fn insert_transaction(
758 &mut self,
759 transaction_id: TransactionId,
760 selections: Arc<[Selection<Anchor>]>,
761 ) {
762 self.selections_by_transaction
763 .insert(transaction_id, (selections, None));
764 }
765
766 #[allow(clippy::type_complexity)]
767 fn transaction(
768 &self,
769 transaction_id: TransactionId,
770 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
771 self.selections_by_transaction.get(&transaction_id)
772 }
773
774 #[allow(clippy::type_complexity)]
775 fn transaction_mut(
776 &mut self,
777 transaction_id: TransactionId,
778 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
779 self.selections_by_transaction.get_mut(&transaction_id)
780 }
781
782 fn push(&mut self, entry: SelectionHistoryEntry) {
783 if !entry.selections.is_empty() {
784 match self.mode {
785 SelectionHistoryMode::Normal => {
786 self.push_undo(entry);
787 self.redo_stack.clear();
788 }
789 SelectionHistoryMode::Undoing => self.push_redo(entry),
790 SelectionHistoryMode::Redoing => self.push_undo(entry),
791 }
792 }
793 }
794
795 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
796 if self
797 .undo_stack
798 .back()
799 .map_or(true, |e| e.selections != entry.selections)
800 {
801 self.undo_stack.push_back(entry);
802 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
803 self.undo_stack.pop_front();
804 }
805 }
806 }
807
808 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
809 if self
810 .redo_stack
811 .back()
812 .map_or(true, |e| e.selections != entry.selections)
813 {
814 self.redo_stack.push_back(entry);
815 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
816 self.redo_stack.pop_front();
817 }
818 }
819 }
820}
821
822struct RowHighlight {
823 index: usize,
824 range: Range<Anchor>,
825 color: Hsla,
826 should_autoscroll: bool,
827}
828
829#[derive(Clone, Debug)]
830struct AddSelectionsState {
831 above: bool,
832 stack: Vec<usize>,
833}
834
835#[derive(Clone)]
836struct SelectNextState {
837 query: AhoCorasick,
838 wordwise: bool,
839 done: bool,
840}
841
842impl std::fmt::Debug for SelectNextState {
843 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
844 f.debug_struct(std::any::type_name::<Self>())
845 .field("wordwise", &self.wordwise)
846 .field("done", &self.done)
847 .finish()
848 }
849}
850
851#[derive(Debug)]
852struct AutocloseRegion {
853 selection_id: usize,
854 range: Range<Anchor>,
855 pair: BracketPair,
856}
857
858#[derive(Debug)]
859struct SnippetState {
860 ranges: Vec<Vec<Range<Anchor>>>,
861 active_index: usize,
862}
863
864#[doc(hidden)]
865pub struct RenameState {
866 pub range: Range<Anchor>,
867 pub old_name: Arc<str>,
868 pub editor: View<Editor>,
869 block_id: CustomBlockId,
870}
871
872struct InvalidationStack<T>(Vec<T>);
873
874struct RegisteredInlineCompletionProvider {
875 provider: Arc<dyn InlineCompletionProviderHandle>,
876 _subscription: Subscription,
877}
878
879enum ContextMenu {
880 Completions(CompletionsMenu),
881 CodeActions(CodeActionsMenu),
882}
883
884impl ContextMenu {
885 fn select_first(
886 &mut self,
887 project: Option<&Model<Project>>,
888 cx: &mut ViewContext<Editor>,
889 ) -> bool {
890 if self.visible() {
891 match self {
892 ContextMenu::Completions(menu) => menu.select_first(project, cx),
893 ContextMenu::CodeActions(menu) => menu.select_first(cx),
894 }
895 true
896 } else {
897 false
898 }
899 }
900
901 fn select_prev(
902 &mut self,
903 project: Option<&Model<Project>>,
904 cx: &mut ViewContext<Editor>,
905 ) -> bool {
906 if self.visible() {
907 match self {
908 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
909 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
910 }
911 true
912 } else {
913 false
914 }
915 }
916
917 fn select_next(
918 &mut self,
919 project: Option<&Model<Project>>,
920 cx: &mut ViewContext<Editor>,
921 ) -> bool {
922 if self.visible() {
923 match self {
924 ContextMenu::Completions(menu) => menu.select_next(project, cx),
925 ContextMenu::CodeActions(menu) => menu.select_next(cx),
926 }
927 true
928 } else {
929 false
930 }
931 }
932
933 fn select_last(
934 &mut self,
935 project: Option<&Model<Project>>,
936 cx: &mut ViewContext<Editor>,
937 ) -> bool {
938 if self.visible() {
939 match self {
940 ContextMenu::Completions(menu) => menu.select_last(project, cx),
941 ContextMenu::CodeActions(menu) => menu.select_last(cx),
942 }
943 true
944 } else {
945 false
946 }
947 }
948
949 fn visible(&self) -> bool {
950 match self {
951 ContextMenu::Completions(menu) => menu.visible(),
952 ContextMenu::CodeActions(menu) => menu.visible(),
953 }
954 }
955
956 fn render(
957 &self,
958 cursor_position: DisplayPoint,
959 style: &EditorStyle,
960 max_height: Pixels,
961 workspace: Option<WeakView<Workspace>>,
962 cx: &mut ViewContext<Editor>,
963 ) -> (ContextMenuOrigin, AnyElement) {
964 match self {
965 ContextMenu::Completions(menu) => (
966 ContextMenuOrigin::EditorPoint(cursor_position),
967 menu.render(style, max_height, workspace, cx),
968 ),
969 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
970 }
971 }
972}
973
974enum ContextMenuOrigin {
975 EditorPoint(DisplayPoint),
976 GutterIndicator(DisplayRow),
977}
978
979#[derive(Clone)]
980struct CompletionsMenu {
981 id: CompletionId,
982 sort_completions: bool,
983 initial_position: Anchor,
984 buffer: Model<Buffer>,
985 completions: Arc<RwLock<Box<[Completion]>>>,
986 match_candidates: Arc<[StringMatchCandidate]>,
987 matches: Arc<[StringMatch]>,
988 selected_item: usize,
989 scroll_handle: UniformListScrollHandle,
990 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
991}
992
993impl CompletionsMenu {
994 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
995 self.selected_item = 0;
996 self.scroll_handle.scroll_to_item(self.selected_item);
997 self.attempt_resolve_selected_completion_documentation(project, cx);
998 cx.notify();
999 }
1000
1001 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
1002 if self.selected_item > 0 {
1003 self.selected_item -= 1;
1004 } else {
1005 self.selected_item = self.matches.len() - 1;
1006 }
1007 self.scroll_handle.scroll_to_item(self.selected_item);
1008 self.attempt_resolve_selected_completion_documentation(project, cx);
1009 cx.notify();
1010 }
1011
1012 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
1013 if self.selected_item + 1 < self.matches.len() {
1014 self.selected_item += 1;
1015 } else {
1016 self.selected_item = 0;
1017 }
1018 self.scroll_handle.scroll_to_item(self.selected_item);
1019 self.attempt_resolve_selected_completion_documentation(project, cx);
1020 cx.notify();
1021 }
1022
1023 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
1024 self.selected_item = self.matches.len() - 1;
1025 self.scroll_handle.scroll_to_item(self.selected_item);
1026 self.attempt_resolve_selected_completion_documentation(project, cx);
1027 cx.notify();
1028 }
1029
1030 fn pre_resolve_completion_documentation(
1031 buffer: Model<Buffer>,
1032 completions: Arc<RwLock<Box<[Completion]>>>,
1033 matches: Arc<[StringMatch]>,
1034 editor: &Editor,
1035 cx: &mut ViewContext<Editor>,
1036 ) -> Task<()> {
1037 let settings = EditorSettings::get_global(cx);
1038 if !settings.show_completion_documentation {
1039 return Task::ready(());
1040 }
1041
1042 let Some(provider) = editor.completion_provider.as_ref() else {
1043 return Task::ready(());
1044 };
1045
1046 let resolve_task = provider.resolve_completions(
1047 buffer,
1048 matches.iter().map(|m| m.candidate_id).collect(),
1049 completions.clone(),
1050 cx,
1051 );
1052
1053 cx.spawn(move |this, mut cx| async move {
1054 if let Some(true) = resolve_task.await.log_err() {
1055 this.update(&mut cx, |_, cx| cx.notify()).ok();
1056 }
1057 })
1058 }
1059
1060 fn attempt_resolve_selected_completion_documentation(
1061 &mut self,
1062 project: Option<&Model<Project>>,
1063 cx: &mut ViewContext<Editor>,
1064 ) {
1065 let settings = EditorSettings::get_global(cx);
1066 if !settings.show_completion_documentation {
1067 return;
1068 }
1069
1070 let completion_index = self.matches[self.selected_item].candidate_id;
1071 let Some(project) = project else {
1072 return;
1073 };
1074
1075 let resolve_task = project.update(cx, |project, cx| {
1076 project.resolve_completions(
1077 self.buffer.clone(),
1078 vec![completion_index],
1079 self.completions.clone(),
1080 cx,
1081 )
1082 });
1083
1084 let delay_ms =
1085 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1086 let delay = Duration::from_millis(delay_ms);
1087
1088 self.selected_completion_documentation_resolve_debounce
1089 .lock()
1090 .fire_new(delay, cx, |_, cx| {
1091 cx.spawn(move |this, mut cx| async move {
1092 if let Some(true) = resolve_task.await.log_err() {
1093 this.update(&mut cx, |_, cx| cx.notify()).ok();
1094 }
1095 })
1096 });
1097 }
1098
1099 fn visible(&self) -> bool {
1100 !self.matches.is_empty()
1101 }
1102
1103 fn render(
1104 &self,
1105 style: &EditorStyle,
1106 max_height: Pixels,
1107 workspace: Option<WeakView<Workspace>>,
1108 cx: &mut ViewContext<Editor>,
1109 ) -> AnyElement {
1110 let settings = EditorSettings::get_global(cx);
1111 let show_completion_documentation = settings.show_completion_documentation;
1112
1113 let widest_completion_ix = self
1114 .matches
1115 .iter()
1116 .enumerate()
1117 .max_by_key(|(_, mat)| {
1118 let completions = self.completions.read();
1119 let completion = &completions[mat.candidate_id];
1120 let documentation = &completion.documentation;
1121
1122 let mut len = completion.label.text.chars().count();
1123 if let Some(Documentation::SingleLine(text)) = documentation {
1124 if show_completion_documentation {
1125 len += text.chars().count();
1126 }
1127 }
1128
1129 len
1130 })
1131 .map(|(ix, _)| ix);
1132
1133 let completions = self.completions.clone();
1134 let matches = self.matches.clone();
1135 let selected_item = self.selected_item;
1136 let style = style.clone();
1137
1138 let multiline_docs = if show_completion_documentation {
1139 let mat = &self.matches[selected_item];
1140 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1141 Some(Documentation::MultiLinePlainText(text)) => {
1142 Some(div().child(SharedString::from(text.clone())))
1143 }
1144 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1145 Some(div().child(render_parsed_markdown(
1146 "completions_markdown",
1147 parsed,
1148 &style,
1149 workspace,
1150 cx,
1151 )))
1152 }
1153 _ => None,
1154 };
1155 multiline_docs.map(|div| {
1156 div.id("multiline_docs")
1157 .max_h(max_height)
1158 .flex_1()
1159 .px_1p5()
1160 .py_1()
1161 .min_w(px(260.))
1162 .max_w(px(640.))
1163 .w(px(500.))
1164 .overflow_y_scroll()
1165 .occlude()
1166 })
1167 } else {
1168 None
1169 };
1170
1171 let list = uniform_list(
1172 cx.view().clone(),
1173 "completions",
1174 matches.len(),
1175 move |_editor, range, cx| {
1176 let start_ix = range.start;
1177 let completions_guard = completions.read();
1178
1179 matches[range]
1180 .iter()
1181 .enumerate()
1182 .map(|(ix, mat)| {
1183 let item_ix = start_ix + ix;
1184 let candidate_id = mat.candidate_id;
1185 let completion = &completions_guard[candidate_id];
1186
1187 let documentation = if show_completion_documentation {
1188 &completion.documentation
1189 } else {
1190 &None
1191 };
1192
1193 let highlights = gpui::combine_highlights(
1194 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1195 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1196 |(range, mut highlight)| {
1197 // Ignore font weight for syntax highlighting, as we'll use it
1198 // for fuzzy matches.
1199 highlight.font_weight = None;
1200
1201 if completion.lsp_completion.deprecated.unwrap_or(false) {
1202 highlight.strikethrough = Some(StrikethroughStyle {
1203 thickness: 1.0.into(),
1204 ..Default::default()
1205 });
1206 highlight.color = Some(cx.theme().colors().text_muted);
1207 }
1208
1209 (range, highlight)
1210 },
1211 ),
1212 );
1213 let completion_label = StyledText::new(completion.label.text.clone())
1214 .with_highlights(&style.text, highlights);
1215 let documentation_label =
1216 if let Some(Documentation::SingleLine(text)) = documentation {
1217 if text.trim().is_empty() {
1218 None
1219 } else {
1220 Some(
1221 Label::new(text.clone())
1222 .ml_4()
1223 .size(LabelSize::Small)
1224 .color(Color::Muted),
1225 )
1226 }
1227 } else {
1228 None
1229 };
1230
1231 div().min_w(px(220.)).max_w(px(540.)).child(
1232 ListItem::new(mat.candidate_id)
1233 .inset(true)
1234 .selected(item_ix == selected_item)
1235 .on_click(cx.listener(move |editor, _event, cx| {
1236 cx.stop_propagation();
1237 if let Some(task) = editor.confirm_completion(
1238 &ConfirmCompletion {
1239 item_ix: Some(item_ix),
1240 },
1241 cx,
1242 ) {
1243 task.detach_and_log_err(cx)
1244 }
1245 }))
1246 .child(h_flex().overflow_hidden().child(completion_label))
1247 .end_slot::<Label>(documentation_label),
1248 )
1249 })
1250 .collect()
1251 },
1252 )
1253 .occlude()
1254 .max_h(max_height)
1255 .track_scroll(self.scroll_handle.clone())
1256 .with_width_from_item(widest_completion_ix)
1257 .with_sizing_behavior(ListSizingBehavior::Infer);
1258
1259 Popover::new()
1260 .child(list)
1261 .when_some(multiline_docs, |popover, multiline_docs| {
1262 popover.aside(multiline_docs)
1263 })
1264 .into_any_element()
1265 }
1266
1267 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1268 let mut matches = if let Some(query) = query {
1269 fuzzy::match_strings(
1270 &self.match_candidates,
1271 query,
1272 query.chars().any(|c| c.is_uppercase()),
1273 100,
1274 &Default::default(),
1275 executor,
1276 )
1277 .await
1278 } else {
1279 self.match_candidates
1280 .iter()
1281 .enumerate()
1282 .map(|(candidate_id, candidate)| StringMatch {
1283 candidate_id,
1284 score: Default::default(),
1285 positions: Default::default(),
1286 string: candidate.string.clone(),
1287 })
1288 .collect()
1289 };
1290
1291 // Remove all candidates where the query's start does not match the start of any word in the candidate
1292 if let Some(query) = query {
1293 if let Some(query_start) = query.chars().next() {
1294 matches.retain(|string_match| {
1295 split_words(&string_match.string).any(|word| {
1296 // Check that the first codepoint of the word as lowercase matches the first
1297 // codepoint of the query as lowercase
1298 word.chars()
1299 .flat_map(|codepoint| codepoint.to_lowercase())
1300 .zip(query_start.to_lowercase())
1301 .all(|(word_cp, query_cp)| word_cp == query_cp)
1302 })
1303 });
1304 }
1305 }
1306
1307 let completions = self.completions.read();
1308 if self.sort_completions {
1309 matches.sort_unstable_by_key(|mat| {
1310 // We do want to strike a balance here between what the language server tells us
1311 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1312 // `Creat` and there is a local variable called `CreateComponent`).
1313 // So what we do is: we bucket all matches into two buckets
1314 // - Strong matches
1315 // - Weak matches
1316 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1317 // and the Weak matches are the rest.
1318 //
1319 // For the strong matches, we sort by the language-servers score first and for the weak
1320 // matches, we prefer our fuzzy finder first.
1321 //
1322 // The thinking behind that: it's useless to take the sort_text the language-server gives
1323 // us into account when it's obviously a bad match.
1324
1325 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1326 enum MatchScore<'a> {
1327 Strong {
1328 sort_text: Option<&'a str>,
1329 score: Reverse<OrderedFloat<f64>>,
1330 sort_key: (usize, &'a str),
1331 },
1332 Weak {
1333 score: Reverse<OrderedFloat<f64>>,
1334 sort_text: Option<&'a str>,
1335 sort_key: (usize, &'a str),
1336 },
1337 }
1338
1339 let completion = &completions[mat.candidate_id];
1340 let sort_key = completion.sort_key();
1341 let sort_text = completion.lsp_completion.sort_text.as_deref();
1342 let score = Reverse(OrderedFloat(mat.score));
1343
1344 if mat.score >= 0.2 {
1345 MatchScore::Strong {
1346 sort_text,
1347 score,
1348 sort_key,
1349 }
1350 } else {
1351 MatchScore::Weak {
1352 score,
1353 sort_text,
1354 sort_key,
1355 }
1356 }
1357 });
1358 }
1359
1360 for mat in &mut matches {
1361 let completion = &completions[mat.candidate_id];
1362 mat.string.clone_from(&completion.label.text);
1363 for position in &mut mat.positions {
1364 *position += completion.label.filter_range.start;
1365 }
1366 }
1367 drop(completions);
1368
1369 self.matches = matches.into();
1370 self.selected_item = 0;
1371 }
1372}
1373
1374struct AvailableCodeAction {
1375 excerpt_id: ExcerptId,
1376 action: CodeAction,
1377 provider: Arc<dyn CodeActionProvider>,
1378}
1379
1380#[derive(Clone)]
1381struct CodeActionContents {
1382 tasks: Option<Arc<ResolvedTasks>>,
1383 actions: Option<Arc<[AvailableCodeAction]>>,
1384}
1385
1386impl CodeActionContents {
1387 fn len(&self) -> usize {
1388 match (&self.tasks, &self.actions) {
1389 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1390 (Some(tasks), None) => tasks.templates.len(),
1391 (None, Some(actions)) => actions.len(),
1392 (None, None) => 0,
1393 }
1394 }
1395
1396 fn is_empty(&self) -> bool {
1397 match (&self.tasks, &self.actions) {
1398 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1399 (Some(tasks), None) => tasks.templates.is_empty(),
1400 (None, Some(actions)) => actions.is_empty(),
1401 (None, None) => true,
1402 }
1403 }
1404
1405 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1406 self.tasks
1407 .iter()
1408 .flat_map(|tasks| {
1409 tasks
1410 .templates
1411 .iter()
1412 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1413 })
1414 .chain(self.actions.iter().flat_map(|actions| {
1415 actions.iter().map(|available| CodeActionsItem::CodeAction {
1416 excerpt_id: available.excerpt_id,
1417 action: available.action.clone(),
1418 provider: available.provider.clone(),
1419 })
1420 }))
1421 }
1422 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1423 match (&self.tasks, &self.actions) {
1424 (Some(tasks), Some(actions)) => {
1425 if index < tasks.templates.len() {
1426 tasks
1427 .templates
1428 .get(index)
1429 .cloned()
1430 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1431 } else {
1432 actions.get(index - tasks.templates.len()).map(|available| {
1433 CodeActionsItem::CodeAction {
1434 excerpt_id: available.excerpt_id,
1435 action: available.action.clone(),
1436 provider: available.provider.clone(),
1437 }
1438 })
1439 }
1440 }
1441 (Some(tasks), None) => tasks
1442 .templates
1443 .get(index)
1444 .cloned()
1445 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1446 (None, Some(actions)) => {
1447 actions
1448 .get(index)
1449 .map(|available| CodeActionsItem::CodeAction {
1450 excerpt_id: available.excerpt_id,
1451 action: available.action.clone(),
1452 provider: available.provider.clone(),
1453 })
1454 }
1455 (None, None) => None,
1456 }
1457 }
1458}
1459
1460#[allow(clippy::large_enum_variant)]
1461#[derive(Clone)]
1462enum CodeActionsItem {
1463 Task(TaskSourceKind, ResolvedTask),
1464 CodeAction {
1465 excerpt_id: ExcerptId,
1466 action: CodeAction,
1467 provider: Arc<dyn CodeActionProvider>,
1468 },
1469}
1470
1471impl CodeActionsItem {
1472 fn as_task(&self) -> Option<&ResolvedTask> {
1473 let Self::Task(_, task) = self else {
1474 return None;
1475 };
1476 Some(task)
1477 }
1478 fn as_code_action(&self) -> Option<&CodeAction> {
1479 let Self::CodeAction { action, .. } = self else {
1480 return None;
1481 };
1482 Some(action)
1483 }
1484 fn label(&self) -> String {
1485 match self {
1486 Self::CodeAction { action, .. } => action.lsp_action.title.clone(),
1487 Self::Task(_, task) => task.resolved_label.clone(),
1488 }
1489 }
1490}
1491
1492struct CodeActionsMenu {
1493 actions: CodeActionContents,
1494 buffer: Model<Buffer>,
1495 selected_item: usize,
1496 scroll_handle: UniformListScrollHandle,
1497 deployed_from_indicator: Option<DisplayRow>,
1498}
1499
1500impl CodeActionsMenu {
1501 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1502 self.selected_item = 0;
1503 self.scroll_handle.scroll_to_item(self.selected_item);
1504 cx.notify()
1505 }
1506
1507 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1508 if self.selected_item > 0 {
1509 self.selected_item -= 1;
1510 } else {
1511 self.selected_item = self.actions.len() - 1;
1512 }
1513 self.scroll_handle.scroll_to_item(self.selected_item);
1514 cx.notify();
1515 }
1516
1517 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1518 if self.selected_item + 1 < self.actions.len() {
1519 self.selected_item += 1;
1520 } else {
1521 self.selected_item = 0;
1522 }
1523 self.scroll_handle.scroll_to_item(self.selected_item);
1524 cx.notify();
1525 }
1526
1527 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1528 self.selected_item = self.actions.len() - 1;
1529 self.scroll_handle.scroll_to_item(self.selected_item);
1530 cx.notify()
1531 }
1532
1533 fn visible(&self) -> bool {
1534 !self.actions.is_empty()
1535 }
1536
1537 fn render(
1538 &self,
1539 cursor_position: DisplayPoint,
1540 _style: &EditorStyle,
1541 max_height: Pixels,
1542 cx: &mut ViewContext<Editor>,
1543 ) -> (ContextMenuOrigin, AnyElement) {
1544 let actions = self.actions.clone();
1545 let selected_item = self.selected_item;
1546 let element = uniform_list(
1547 cx.view().clone(),
1548 "code_actions_menu",
1549 self.actions.len(),
1550 move |_this, range, cx| {
1551 actions
1552 .iter()
1553 .skip(range.start)
1554 .take(range.end - range.start)
1555 .enumerate()
1556 .map(|(ix, action)| {
1557 let item_ix = range.start + ix;
1558 let selected = selected_item == item_ix;
1559 let colors = cx.theme().colors();
1560 div()
1561 .px_1()
1562 .rounded_md()
1563 .text_color(colors.text)
1564 .when(selected, |style| {
1565 style
1566 .bg(colors.element_active)
1567 .text_color(colors.text_accent)
1568 })
1569 .hover(|style| {
1570 style
1571 .bg(colors.element_hover)
1572 .text_color(colors.text_accent)
1573 })
1574 .whitespace_nowrap()
1575 .when_some(action.as_code_action(), |this, action| {
1576 this.on_mouse_down(
1577 MouseButton::Left,
1578 cx.listener(move |editor, _, cx| {
1579 cx.stop_propagation();
1580 if let Some(task) = editor.confirm_code_action(
1581 &ConfirmCodeAction {
1582 item_ix: Some(item_ix),
1583 },
1584 cx,
1585 ) {
1586 task.detach_and_log_err(cx)
1587 }
1588 }),
1589 )
1590 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1591 .child(SharedString::from(action.lsp_action.title.clone()))
1592 })
1593 .when_some(action.as_task(), |this, task| {
1594 this.on_mouse_down(
1595 MouseButton::Left,
1596 cx.listener(move |editor, _, cx| {
1597 cx.stop_propagation();
1598 if let Some(task) = editor.confirm_code_action(
1599 &ConfirmCodeAction {
1600 item_ix: Some(item_ix),
1601 },
1602 cx,
1603 ) {
1604 task.detach_and_log_err(cx)
1605 }
1606 }),
1607 )
1608 .child(SharedString::from(task.resolved_label.clone()))
1609 })
1610 })
1611 .collect()
1612 },
1613 )
1614 .elevation_1(cx)
1615 .p_1()
1616 .max_h(max_height)
1617 .occlude()
1618 .track_scroll(self.scroll_handle.clone())
1619 .with_width_from_item(
1620 self.actions
1621 .iter()
1622 .enumerate()
1623 .max_by_key(|(_, action)| match action {
1624 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1625 CodeActionsItem::CodeAction { action, .. } => {
1626 action.lsp_action.title.chars().count()
1627 }
1628 })
1629 .map(|(ix, _)| ix),
1630 )
1631 .with_sizing_behavior(ListSizingBehavior::Infer)
1632 .into_any_element();
1633
1634 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1635 ContextMenuOrigin::GutterIndicator(row)
1636 } else {
1637 ContextMenuOrigin::EditorPoint(cursor_position)
1638 };
1639
1640 (cursor_position, element)
1641 }
1642}
1643
1644#[derive(Debug)]
1645struct ActiveDiagnosticGroup {
1646 primary_range: Range<Anchor>,
1647 primary_message: String,
1648 group_id: usize,
1649 blocks: HashMap<CustomBlockId, Diagnostic>,
1650 is_valid: bool,
1651}
1652
1653#[derive(Serialize, Deserialize, Clone, Debug)]
1654pub struct ClipboardSelection {
1655 pub len: usize,
1656 pub is_entire_line: bool,
1657 pub first_line_indent: u32,
1658}
1659
1660#[derive(Debug)]
1661pub(crate) struct NavigationData {
1662 cursor_anchor: Anchor,
1663 cursor_position: Point,
1664 scroll_anchor: ScrollAnchor,
1665 scroll_top_row: u32,
1666}
1667
1668#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1669enum GotoDefinitionKind {
1670 Symbol,
1671 Declaration,
1672 Type,
1673 Implementation,
1674}
1675
1676#[derive(Debug, Clone)]
1677enum InlayHintRefreshReason {
1678 Toggle(bool),
1679 SettingsChange(InlayHintSettings),
1680 NewLinesShown,
1681 BufferEdited(HashSet<Arc<Language>>),
1682 RefreshRequested,
1683 ExcerptsRemoved(Vec<ExcerptId>),
1684}
1685
1686impl InlayHintRefreshReason {
1687 fn description(&self) -> &'static str {
1688 match self {
1689 Self::Toggle(_) => "toggle",
1690 Self::SettingsChange(_) => "settings change",
1691 Self::NewLinesShown => "new lines shown",
1692 Self::BufferEdited(_) => "buffer edited",
1693 Self::RefreshRequested => "refresh requested",
1694 Self::ExcerptsRemoved(_) => "excerpts removed",
1695 }
1696 }
1697}
1698
1699pub(crate) struct FocusedBlock {
1700 id: BlockId,
1701 focus_handle: WeakFocusHandle,
1702}
1703
1704impl Editor {
1705 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1706 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1707 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1708 Self::new(
1709 EditorMode::SingleLine { auto_width: false },
1710 buffer,
1711 None,
1712 false,
1713 cx,
1714 )
1715 }
1716
1717 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1718 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1719 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1720 Self::new(EditorMode::Full, buffer, None, false, cx)
1721 }
1722
1723 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1724 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1725 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1726 Self::new(
1727 EditorMode::SingleLine { auto_width: true },
1728 buffer,
1729 None,
1730 false,
1731 cx,
1732 )
1733 }
1734
1735 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1736 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1737 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1738 Self::new(
1739 EditorMode::AutoHeight { max_lines },
1740 buffer,
1741 None,
1742 false,
1743 cx,
1744 )
1745 }
1746
1747 pub fn for_buffer(
1748 buffer: Model<Buffer>,
1749 project: Option<Model<Project>>,
1750 cx: &mut ViewContext<Self>,
1751 ) -> Self {
1752 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1753 Self::new(EditorMode::Full, buffer, project, false, cx)
1754 }
1755
1756 pub fn for_multibuffer(
1757 buffer: Model<MultiBuffer>,
1758 project: Option<Model<Project>>,
1759 show_excerpt_controls: bool,
1760 cx: &mut ViewContext<Self>,
1761 ) -> Self {
1762 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1763 }
1764
1765 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1766 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1767 let mut clone = Self::new(
1768 self.mode,
1769 self.buffer.clone(),
1770 self.project.clone(),
1771 show_excerpt_controls,
1772 cx,
1773 );
1774 self.display_map.update(cx, |display_map, cx| {
1775 let snapshot = display_map.snapshot(cx);
1776 clone.display_map.update(cx, |display_map, cx| {
1777 display_map.set_state(&snapshot, cx);
1778 });
1779 });
1780 clone.selections.clone_state(&self.selections);
1781 clone.scroll_manager.clone_state(&self.scroll_manager);
1782 clone.searchable = self.searchable;
1783 clone
1784 }
1785
1786 pub fn new(
1787 mode: EditorMode,
1788 buffer: Model<MultiBuffer>,
1789 project: Option<Model<Project>>,
1790 show_excerpt_controls: bool,
1791 cx: &mut ViewContext<Self>,
1792 ) -> Self {
1793 let style = cx.text_style();
1794 let font_size = style.font_size.to_pixels(cx.rem_size());
1795 let editor = cx.view().downgrade();
1796 let fold_placeholder = FoldPlaceholder {
1797 constrain_width: true,
1798 render: Arc::new(move |fold_id, fold_range, cx| {
1799 let editor = editor.clone();
1800 div()
1801 .id(fold_id)
1802 .bg(cx.theme().colors().ghost_element_background)
1803 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1804 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1805 .rounded_sm()
1806 .size_full()
1807 .cursor_pointer()
1808 .child("⋯")
1809 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1810 .on_click(move |_, cx| {
1811 editor
1812 .update(cx, |editor, cx| {
1813 editor.unfold_ranges(
1814 [fold_range.start..fold_range.end],
1815 true,
1816 false,
1817 cx,
1818 );
1819 cx.stop_propagation();
1820 })
1821 .ok();
1822 })
1823 .into_any()
1824 }),
1825 merge_adjacent: true,
1826 };
1827 let file_header_size = if show_excerpt_controls { 3 } else { 2 };
1828 let display_map = cx.new_model(|cx| {
1829 DisplayMap::new(
1830 buffer.clone(),
1831 style.font(),
1832 font_size,
1833 None,
1834 show_excerpt_controls,
1835 file_header_size,
1836 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1837 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1838 fold_placeholder,
1839 cx,
1840 )
1841 });
1842
1843 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1844
1845 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1846
1847 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1848 .then(|| language_settings::SoftWrap::None);
1849
1850 let mut project_subscriptions = Vec::new();
1851 if mode == EditorMode::Full {
1852 if let Some(project) = project.as_ref() {
1853 if buffer.read(cx).is_singleton() {
1854 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1855 cx.emit(EditorEvent::TitleChanged);
1856 }));
1857 }
1858 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1859 if let project::Event::RefreshInlayHints = event {
1860 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1861 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1862 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1863 let focus_handle = editor.focus_handle(cx);
1864 if focus_handle.is_focused(cx) {
1865 let snapshot = buffer.read(cx).snapshot();
1866 for (range, snippet) in snippet_edits {
1867 let editor_range =
1868 language::range_from_lsp(*range).to_offset(&snapshot);
1869 editor
1870 .insert_snippet(&[editor_range], snippet.clone(), cx)
1871 .ok();
1872 }
1873 }
1874 }
1875 }
1876 }));
1877 let task_inventory = project.read(cx).task_inventory().clone();
1878 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1879 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1880 }));
1881 }
1882 }
1883
1884 let inlay_hint_settings = inlay_hint_settings(
1885 selections.newest_anchor().head(),
1886 &buffer.read(cx).snapshot(cx),
1887 cx,
1888 );
1889 let focus_handle = cx.focus_handle();
1890 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1891 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1892 .detach();
1893 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1894 .detach();
1895 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1896
1897 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1898 Some(false)
1899 } else {
1900 None
1901 };
1902
1903 let mut code_action_providers = Vec::new();
1904 if let Some(project) = project.clone() {
1905 code_action_providers.push(Arc::new(project) as Arc<_>);
1906 }
1907
1908 let mut this = Self {
1909 focus_handle,
1910 show_cursor_when_unfocused: false,
1911 last_focused_descendant: None,
1912 buffer: buffer.clone(),
1913 display_map: display_map.clone(),
1914 selections,
1915 scroll_manager: ScrollManager::new(cx),
1916 columnar_selection_tail: None,
1917 add_selections_state: None,
1918 select_next_state: None,
1919 select_prev_state: None,
1920 selection_history: Default::default(),
1921 autoclose_regions: Default::default(),
1922 snippet_stack: Default::default(),
1923 select_larger_syntax_node_stack: Vec::new(),
1924 ime_transaction: Default::default(),
1925 active_diagnostics: None,
1926 soft_wrap_mode_override,
1927 completion_provider: project.clone().map(|project| Box::new(project) as _),
1928 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1929 project,
1930 blink_manager: blink_manager.clone(),
1931 show_local_selections: true,
1932 mode,
1933 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1934 show_gutter: mode == EditorMode::Full,
1935 show_line_numbers: None,
1936 use_relative_line_numbers: None,
1937 show_git_diff_gutter: None,
1938 show_code_actions: None,
1939 show_runnables: None,
1940 show_wrap_guides: None,
1941 show_indent_guides,
1942 placeholder_text: None,
1943 highlight_order: 0,
1944 highlighted_rows: HashMap::default(),
1945 background_highlights: Default::default(),
1946 gutter_highlights: TreeMap::default(),
1947 scrollbar_marker_state: ScrollbarMarkerState::default(),
1948 active_indent_guides_state: ActiveIndentGuidesState::default(),
1949 nav_history: None,
1950 context_menu: RwLock::new(None),
1951 mouse_context_menu: None,
1952 hunk_controls_menu_handle: PopoverMenuHandle::default(),
1953 completion_tasks: Default::default(),
1954 signature_help_state: SignatureHelpState::default(),
1955 auto_signature_help: None,
1956 find_all_references_task_sources: Vec::new(),
1957 next_completion_id: 0,
1958 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1959 next_inlay_id: 0,
1960 code_action_providers,
1961 available_code_actions: Default::default(),
1962 code_actions_task: Default::default(),
1963 document_highlights_task: Default::default(),
1964 linked_editing_range_task: Default::default(),
1965 pending_rename: Default::default(),
1966 searchable: true,
1967 cursor_shape: EditorSettings::get_global(cx)
1968 .cursor_shape
1969 .unwrap_or_default(),
1970 current_line_highlight: None,
1971 autoindent_mode: Some(AutoindentMode::EachLine),
1972 collapse_matches: false,
1973 workspace: None,
1974 input_enabled: true,
1975 use_modal_editing: mode == EditorMode::Full,
1976 read_only: false,
1977 use_autoclose: true,
1978 use_auto_surround: true,
1979 auto_replace_emoji_shortcode: false,
1980 leader_peer_id: None,
1981 remote_id: None,
1982 hover_state: Default::default(),
1983 hovered_link_state: Default::default(),
1984 inline_completion_provider: None,
1985 active_inline_completion: None,
1986 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1987 expanded_hunks: ExpandedHunks::default(),
1988 gutter_hovered: false,
1989 pixel_position_of_newest_cursor: None,
1990 last_bounds: None,
1991 expect_bounds_change: None,
1992 gutter_dimensions: GutterDimensions::default(),
1993 style: None,
1994 show_cursor_names: false,
1995 hovered_cursors: Default::default(),
1996 next_editor_action_id: EditorActionId::default(),
1997 editor_actions: Rc::default(),
1998 show_inline_completions_override: None,
1999 enable_inline_completions: true,
2000 custom_context_menu: None,
2001 show_git_blame_gutter: false,
2002 show_git_blame_inline: false,
2003 show_selection_menu: None,
2004 show_git_blame_inline_delay_task: None,
2005 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
2006 serialize_dirty_buffers: ProjectSettings::get_global(cx)
2007 .session
2008 .restore_unsaved_buffers,
2009 blame: None,
2010 blame_subscription: None,
2011 file_header_size,
2012 tasks: Default::default(),
2013 _subscriptions: vec![
2014 cx.observe(&buffer, Self::on_buffer_changed),
2015 cx.subscribe(&buffer, Self::on_buffer_event),
2016 cx.observe(&display_map, Self::on_display_map_changed),
2017 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
2018 cx.observe_global::<SettingsStore>(Self::settings_changed),
2019 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
2020 cx.observe_window_activation(|editor, cx| {
2021 let active = cx.is_window_active();
2022 editor.blink_manager.update(cx, |blink_manager, cx| {
2023 if active {
2024 blink_manager.enable(cx);
2025 } else {
2026 blink_manager.disable(cx);
2027 }
2028 });
2029 }),
2030 ],
2031 tasks_update_task: None,
2032 linked_edit_ranges: Default::default(),
2033 previous_search_ranges: None,
2034 breadcrumb_header: None,
2035 focused_block: None,
2036 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
2037 addons: HashMap::default(),
2038 _scroll_cursor_center_top_bottom_task: Task::ready(()),
2039 };
2040 this.tasks_update_task = Some(this.refresh_runnables(cx));
2041 this._subscriptions.extend(project_subscriptions);
2042
2043 this.end_selection(cx);
2044 this.scroll_manager.show_scrollbar(cx);
2045
2046 if mode == EditorMode::Full {
2047 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
2048 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
2049
2050 if this.git_blame_inline_enabled {
2051 this.git_blame_inline_enabled = true;
2052 this.start_git_blame_inline(false, cx);
2053 }
2054 }
2055
2056 this.report_editor_event("open", None, cx);
2057 this
2058 }
2059
2060 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
2061 self.mouse_context_menu
2062 .as_ref()
2063 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
2064 }
2065
2066 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
2067 let mut key_context = KeyContext::new_with_defaults();
2068 key_context.add("Editor");
2069 let mode = match self.mode {
2070 EditorMode::SingleLine { .. } => "single_line",
2071 EditorMode::AutoHeight { .. } => "auto_height",
2072 EditorMode::Full => "full",
2073 };
2074
2075 if EditorSettings::jupyter_enabled(cx) {
2076 key_context.add("jupyter");
2077 }
2078
2079 key_context.set("mode", mode);
2080 if self.pending_rename.is_some() {
2081 key_context.add("renaming");
2082 }
2083 if self.context_menu_visible() {
2084 match self.context_menu.read().as_ref() {
2085 Some(ContextMenu::Completions(_)) => {
2086 key_context.add("menu");
2087 key_context.add("showing_completions")
2088 }
2089 Some(ContextMenu::CodeActions(_)) => {
2090 key_context.add("menu");
2091 key_context.add("showing_code_actions")
2092 }
2093 None => {}
2094 }
2095 }
2096
2097 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2098 if !self.focus_handle(cx).contains_focused(cx)
2099 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2100 {
2101 for addon in self.addons.values() {
2102 addon.extend_key_context(&mut key_context, cx)
2103 }
2104 }
2105
2106 if let Some(extension) = self
2107 .buffer
2108 .read(cx)
2109 .as_singleton()
2110 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2111 {
2112 key_context.set("extension", extension.to_string());
2113 }
2114
2115 if self.has_active_inline_completion(cx) {
2116 key_context.add("copilot_suggestion");
2117 key_context.add("inline_completion");
2118 }
2119
2120 key_context
2121 }
2122
2123 pub fn new_file(
2124 workspace: &mut Workspace,
2125 _: &workspace::NewFile,
2126 cx: &mut ViewContext<Workspace>,
2127 ) {
2128 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2129 "Failed to create buffer",
2130 cx,
2131 |e, _| match e.error_code() {
2132 ErrorCode::RemoteUpgradeRequired => Some(format!(
2133 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2134 e.error_tag("required").unwrap_or("the latest version")
2135 )),
2136 _ => None,
2137 },
2138 );
2139 }
2140
2141 pub fn new_in_workspace(
2142 workspace: &mut Workspace,
2143 cx: &mut ViewContext<Workspace>,
2144 ) -> Task<Result<View<Editor>>> {
2145 let project = workspace.project().clone();
2146 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2147
2148 cx.spawn(|workspace, mut cx| async move {
2149 let buffer = create.await?;
2150 workspace.update(&mut cx, |workspace, cx| {
2151 let editor =
2152 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2153 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2154 editor
2155 })
2156 })
2157 }
2158
2159 fn new_file_vertical(
2160 workspace: &mut Workspace,
2161 _: &workspace::NewFileSplitVertical,
2162 cx: &mut ViewContext<Workspace>,
2163 ) {
2164 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2165 }
2166
2167 fn new_file_horizontal(
2168 workspace: &mut Workspace,
2169 _: &workspace::NewFileSplitHorizontal,
2170 cx: &mut ViewContext<Workspace>,
2171 ) {
2172 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2173 }
2174
2175 fn new_file_in_direction(
2176 workspace: &mut Workspace,
2177 direction: SplitDirection,
2178 cx: &mut ViewContext<Workspace>,
2179 ) {
2180 let project = workspace.project().clone();
2181 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2182
2183 cx.spawn(|workspace, mut cx| async move {
2184 let buffer = create.await?;
2185 workspace.update(&mut cx, move |workspace, cx| {
2186 workspace.split_item(
2187 direction,
2188 Box::new(
2189 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2190 ),
2191 cx,
2192 )
2193 })?;
2194 anyhow::Ok(())
2195 })
2196 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2197 ErrorCode::RemoteUpgradeRequired => Some(format!(
2198 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2199 e.error_tag("required").unwrap_or("the latest version")
2200 )),
2201 _ => None,
2202 });
2203 }
2204
2205 pub fn leader_peer_id(&self) -> Option<PeerId> {
2206 self.leader_peer_id
2207 }
2208
2209 pub fn buffer(&self) -> &Model<MultiBuffer> {
2210 &self.buffer
2211 }
2212
2213 pub fn workspace(&self) -> Option<View<Workspace>> {
2214 self.workspace.as_ref()?.0.upgrade()
2215 }
2216
2217 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2218 self.buffer().read(cx).title(cx)
2219 }
2220
2221 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2222 let git_blame_gutter_max_author_length = self
2223 .render_git_blame_gutter(cx)
2224 .then(|| {
2225 if let Some(blame) = self.blame.as_ref() {
2226 let max_author_length =
2227 blame.update(cx, |blame, cx| blame.max_author_length(cx));
2228 Some(max_author_length)
2229 } else {
2230 None
2231 }
2232 })
2233 .flatten();
2234
2235 EditorSnapshot {
2236 mode: self.mode,
2237 show_gutter: self.show_gutter,
2238 show_line_numbers: self.show_line_numbers,
2239 show_git_diff_gutter: self.show_git_diff_gutter,
2240 show_code_actions: self.show_code_actions,
2241 show_runnables: self.show_runnables,
2242 git_blame_gutter_max_author_length,
2243 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2244 scroll_anchor: self.scroll_manager.anchor(),
2245 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2246 placeholder_text: self.placeholder_text.clone(),
2247 is_focused: self.focus_handle.is_focused(cx),
2248 current_line_highlight: self
2249 .current_line_highlight
2250 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2251 gutter_hovered: self.gutter_hovered,
2252 }
2253 }
2254
2255 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2256 self.buffer.read(cx).language_at(point, cx)
2257 }
2258
2259 pub fn file_at<T: ToOffset>(
2260 &self,
2261 point: T,
2262 cx: &AppContext,
2263 ) -> Option<Arc<dyn language::File>> {
2264 self.buffer.read(cx).read(cx).file_at(point).cloned()
2265 }
2266
2267 pub fn active_excerpt(
2268 &self,
2269 cx: &AppContext,
2270 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2271 self.buffer
2272 .read(cx)
2273 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2274 }
2275
2276 pub fn mode(&self) -> EditorMode {
2277 self.mode
2278 }
2279
2280 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2281 self.collaboration_hub.as_deref()
2282 }
2283
2284 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2285 self.collaboration_hub = Some(hub);
2286 }
2287
2288 pub fn set_custom_context_menu(
2289 &mut self,
2290 f: impl 'static
2291 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2292 ) {
2293 self.custom_context_menu = Some(Box::new(f))
2294 }
2295
2296 pub fn set_completion_provider(&mut self, provider: Box<dyn CompletionProvider>) {
2297 self.completion_provider = Some(provider);
2298 }
2299
2300 pub fn set_inline_completion_provider<T>(
2301 &mut self,
2302 provider: Option<Model<T>>,
2303 cx: &mut ViewContext<Self>,
2304 ) where
2305 T: InlineCompletionProvider,
2306 {
2307 self.inline_completion_provider =
2308 provider.map(|provider| RegisteredInlineCompletionProvider {
2309 _subscription: cx.observe(&provider, |this, _, cx| {
2310 if this.focus_handle.is_focused(cx) {
2311 this.update_visible_inline_completion(cx);
2312 }
2313 }),
2314 provider: Arc::new(provider),
2315 });
2316 self.refresh_inline_completion(false, false, cx);
2317 }
2318
2319 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2320 self.placeholder_text.as_deref()
2321 }
2322
2323 pub fn set_placeholder_text(
2324 &mut self,
2325 placeholder_text: impl Into<Arc<str>>,
2326 cx: &mut ViewContext<Self>,
2327 ) {
2328 let placeholder_text = Some(placeholder_text.into());
2329 if self.placeholder_text != placeholder_text {
2330 self.placeholder_text = placeholder_text;
2331 cx.notify();
2332 }
2333 }
2334
2335 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2336 self.cursor_shape = cursor_shape;
2337
2338 // Disrupt blink for immediate user feedback that the cursor shape has changed
2339 self.blink_manager.update(cx, BlinkManager::show_cursor);
2340
2341 cx.notify();
2342 }
2343
2344 pub fn set_current_line_highlight(
2345 &mut self,
2346 current_line_highlight: Option<CurrentLineHighlight>,
2347 ) {
2348 self.current_line_highlight = current_line_highlight;
2349 }
2350
2351 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2352 self.collapse_matches = collapse_matches;
2353 }
2354
2355 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2356 if self.collapse_matches {
2357 return range.start..range.start;
2358 }
2359 range.clone()
2360 }
2361
2362 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2363 if self.display_map.read(cx).clip_at_line_ends != clip {
2364 self.display_map
2365 .update(cx, |map, _| map.clip_at_line_ends = clip);
2366 }
2367 }
2368
2369 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2370 self.input_enabled = input_enabled;
2371 }
2372
2373 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2374 self.enable_inline_completions = enabled;
2375 }
2376
2377 pub fn set_autoindent(&mut self, autoindent: bool) {
2378 if autoindent {
2379 self.autoindent_mode = Some(AutoindentMode::EachLine);
2380 } else {
2381 self.autoindent_mode = None;
2382 }
2383 }
2384
2385 pub fn read_only(&self, cx: &AppContext) -> bool {
2386 self.read_only || self.buffer.read(cx).read_only()
2387 }
2388
2389 pub fn set_read_only(&mut self, read_only: bool) {
2390 self.read_only = read_only;
2391 }
2392
2393 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2394 self.use_autoclose = autoclose;
2395 }
2396
2397 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2398 self.use_auto_surround = auto_surround;
2399 }
2400
2401 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2402 self.auto_replace_emoji_shortcode = auto_replace;
2403 }
2404
2405 pub fn toggle_inline_completions(
2406 &mut self,
2407 _: &ToggleInlineCompletions,
2408 cx: &mut ViewContext<Self>,
2409 ) {
2410 if self.show_inline_completions_override.is_some() {
2411 self.set_show_inline_completions(None, cx);
2412 } else {
2413 let cursor = self.selections.newest_anchor().head();
2414 if let Some((buffer, cursor_buffer_position)) =
2415 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2416 {
2417 let show_inline_completions =
2418 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2419 self.set_show_inline_completions(Some(show_inline_completions), cx);
2420 }
2421 }
2422 }
2423
2424 pub fn set_show_inline_completions(
2425 &mut self,
2426 show_inline_completions: Option<bool>,
2427 cx: &mut ViewContext<Self>,
2428 ) {
2429 self.show_inline_completions_override = show_inline_completions;
2430 self.refresh_inline_completion(false, true, cx);
2431 }
2432
2433 fn should_show_inline_completions(
2434 &self,
2435 buffer: &Model<Buffer>,
2436 buffer_position: language::Anchor,
2437 cx: &AppContext,
2438 ) -> bool {
2439 if let Some(provider) = self.inline_completion_provider() {
2440 if let Some(show_inline_completions) = self.show_inline_completions_override {
2441 show_inline_completions
2442 } else {
2443 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2444 }
2445 } else {
2446 false
2447 }
2448 }
2449
2450 pub fn set_use_modal_editing(&mut self, to: bool) {
2451 self.use_modal_editing = to;
2452 }
2453
2454 pub fn use_modal_editing(&self) -> bool {
2455 self.use_modal_editing
2456 }
2457
2458 fn selections_did_change(
2459 &mut self,
2460 local: bool,
2461 old_cursor_position: &Anchor,
2462 show_completions: bool,
2463 cx: &mut ViewContext<Self>,
2464 ) {
2465 cx.invalidate_character_coordinates();
2466
2467 // Copy selections to primary selection buffer
2468 #[cfg(target_os = "linux")]
2469 if local {
2470 let selections = self.selections.all::<usize>(cx);
2471 let buffer_handle = self.buffer.read(cx).read(cx);
2472
2473 let mut text = String::new();
2474 for (index, selection) in selections.iter().enumerate() {
2475 let text_for_selection = buffer_handle
2476 .text_for_range(selection.start..selection.end)
2477 .collect::<String>();
2478
2479 text.push_str(&text_for_selection);
2480 if index != selections.len() - 1 {
2481 text.push('\n');
2482 }
2483 }
2484
2485 if !text.is_empty() {
2486 cx.write_to_primary(ClipboardItem::new_string(text));
2487 }
2488 }
2489
2490 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2491 self.buffer.update(cx, |buffer, cx| {
2492 buffer.set_active_selections(
2493 &self.selections.disjoint_anchors(),
2494 self.selections.line_mode,
2495 self.cursor_shape,
2496 cx,
2497 )
2498 });
2499 }
2500 let display_map = self
2501 .display_map
2502 .update(cx, |display_map, cx| display_map.snapshot(cx));
2503 let buffer = &display_map.buffer_snapshot;
2504 self.add_selections_state = None;
2505 self.select_next_state = None;
2506 self.select_prev_state = None;
2507 self.select_larger_syntax_node_stack.clear();
2508 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2509 self.snippet_stack
2510 .invalidate(&self.selections.disjoint_anchors(), buffer);
2511 self.take_rename(false, cx);
2512
2513 let new_cursor_position = self.selections.newest_anchor().head();
2514
2515 self.push_to_nav_history(
2516 *old_cursor_position,
2517 Some(new_cursor_position.to_point(buffer)),
2518 cx,
2519 );
2520
2521 if local {
2522 let new_cursor_position = self.selections.newest_anchor().head();
2523 let mut context_menu = self.context_menu.write();
2524 let completion_menu = match context_menu.as_ref() {
2525 Some(ContextMenu::Completions(menu)) => Some(menu),
2526
2527 _ => {
2528 *context_menu = None;
2529 None
2530 }
2531 };
2532
2533 if let Some(completion_menu) = completion_menu {
2534 let cursor_position = new_cursor_position.to_offset(buffer);
2535 let (word_range, kind) =
2536 buffer.surrounding_word(completion_menu.initial_position, true);
2537 if kind == Some(CharKind::Word)
2538 && word_range.to_inclusive().contains(&cursor_position)
2539 {
2540 let mut completion_menu = completion_menu.clone();
2541 drop(context_menu);
2542
2543 let query = Self::completion_query(buffer, cursor_position);
2544 cx.spawn(move |this, mut cx| async move {
2545 completion_menu
2546 .filter(query.as_deref(), cx.background_executor().clone())
2547 .await;
2548
2549 this.update(&mut cx, |this, cx| {
2550 let mut context_menu = this.context_menu.write();
2551 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2552 return;
2553 };
2554
2555 if menu.id > completion_menu.id {
2556 return;
2557 }
2558
2559 *context_menu = Some(ContextMenu::Completions(completion_menu));
2560 drop(context_menu);
2561 cx.notify();
2562 })
2563 })
2564 .detach();
2565
2566 if show_completions {
2567 self.show_completions(&ShowCompletions { trigger: None }, cx);
2568 }
2569 } else {
2570 drop(context_menu);
2571 self.hide_context_menu(cx);
2572 }
2573 } else {
2574 drop(context_menu);
2575 }
2576
2577 hide_hover(self, cx);
2578
2579 if old_cursor_position.to_display_point(&display_map).row()
2580 != new_cursor_position.to_display_point(&display_map).row()
2581 {
2582 self.available_code_actions.take();
2583 }
2584 self.refresh_code_actions(cx);
2585 self.refresh_document_highlights(cx);
2586 refresh_matching_bracket_highlights(self, cx);
2587 self.discard_inline_completion(false, cx);
2588 linked_editing_ranges::refresh_linked_ranges(self, cx);
2589 if self.git_blame_inline_enabled {
2590 self.start_inline_blame_timer(cx);
2591 }
2592 }
2593
2594 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2595 cx.emit(EditorEvent::SelectionsChanged { local });
2596
2597 if self.selections.disjoint_anchors().len() == 1 {
2598 cx.emit(SearchEvent::ActiveMatchChanged)
2599 }
2600 cx.notify();
2601 }
2602
2603 pub fn change_selections<R>(
2604 &mut self,
2605 autoscroll: Option<Autoscroll>,
2606 cx: &mut ViewContext<Self>,
2607 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2608 ) -> R {
2609 self.change_selections_inner(autoscroll, true, cx, change)
2610 }
2611
2612 pub fn change_selections_inner<R>(
2613 &mut self,
2614 autoscroll: Option<Autoscroll>,
2615 request_completions: bool,
2616 cx: &mut ViewContext<Self>,
2617 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2618 ) -> R {
2619 let old_cursor_position = self.selections.newest_anchor().head();
2620 self.push_to_selection_history();
2621
2622 let (changed, result) = self.selections.change_with(cx, change);
2623
2624 if changed {
2625 if let Some(autoscroll) = autoscroll {
2626 self.request_autoscroll(autoscroll, cx);
2627 }
2628 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2629
2630 if self.should_open_signature_help_automatically(
2631 &old_cursor_position,
2632 self.signature_help_state.backspace_pressed(),
2633 cx,
2634 ) {
2635 self.show_signature_help(&ShowSignatureHelp, cx);
2636 }
2637 self.signature_help_state.set_backspace_pressed(false);
2638 }
2639
2640 result
2641 }
2642
2643 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2644 where
2645 I: IntoIterator<Item = (Range<S>, T)>,
2646 S: ToOffset,
2647 T: Into<Arc<str>>,
2648 {
2649 if self.read_only(cx) {
2650 return;
2651 }
2652
2653 self.buffer
2654 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2655 }
2656
2657 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2658 where
2659 I: IntoIterator<Item = (Range<S>, T)>,
2660 S: ToOffset,
2661 T: Into<Arc<str>>,
2662 {
2663 if self.read_only(cx) {
2664 return;
2665 }
2666
2667 self.buffer.update(cx, |buffer, cx| {
2668 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2669 });
2670 }
2671
2672 pub fn edit_with_block_indent<I, S, T>(
2673 &mut self,
2674 edits: I,
2675 original_indent_columns: Vec<u32>,
2676 cx: &mut ViewContext<Self>,
2677 ) where
2678 I: IntoIterator<Item = (Range<S>, T)>,
2679 S: ToOffset,
2680 T: Into<Arc<str>>,
2681 {
2682 if self.read_only(cx) {
2683 return;
2684 }
2685
2686 self.buffer.update(cx, |buffer, cx| {
2687 buffer.edit(
2688 edits,
2689 Some(AutoindentMode::Block {
2690 original_indent_columns,
2691 }),
2692 cx,
2693 )
2694 });
2695 }
2696
2697 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2698 self.hide_context_menu(cx);
2699
2700 match phase {
2701 SelectPhase::Begin {
2702 position,
2703 add,
2704 click_count,
2705 } => self.begin_selection(position, add, click_count, cx),
2706 SelectPhase::BeginColumnar {
2707 position,
2708 goal_column,
2709 reset,
2710 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2711 SelectPhase::Extend {
2712 position,
2713 click_count,
2714 } => self.extend_selection(position, click_count, cx),
2715 SelectPhase::Update {
2716 position,
2717 goal_column,
2718 scroll_delta,
2719 } => self.update_selection(position, goal_column, scroll_delta, cx),
2720 SelectPhase::End => self.end_selection(cx),
2721 }
2722 }
2723
2724 fn extend_selection(
2725 &mut self,
2726 position: DisplayPoint,
2727 click_count: usize,
2728 cx: &mut ViewContext<Self>,
2729 ) {
2730 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2731 let tail = self.selections.newest::<usize>(cx).tail();
2732 self.begin_selection(position, false, click_count, cx);
2733
2734 let position = position.to_offset(&display_map, Bias::Left);
2735 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2736
2737 let mut pending_selection = self
2738 .selections
2739 .pending_anchor()
2740 .expect("extend_selection not called with pending selection");
2741 if position >= tail {
2742 pending_selection.start = tail_anchor;
2743 } else {
2744 pending_selection.end = tail_anchor;
2745 pending_selection.reversed = true;
2746 }
2747
2748 let mut pending_mode = self.selections.pending_mode().unwrap();
2749 match &mut pending_mode {
2750 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2751 _ => {}
2752 }
2753
2754 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2755 s.set_pending(pending_selection, pending_mode)
2756 });
2757 }
2758
2759 fn begin_selection(
2760 &mut self,
2761 position: DisplayPoint,
2762 add: bool,
2763 click_count: usize,
2764 cx: &mut ViewContext<Self>,
2765 ) {
2766 if !self.focus_handle.is_focused(cx) {
2767 self.last_focused_descendant = None;
2768 cx.focus(&self.focus_handle);
2769 }
2770
2771 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2772 let buffer = &display_map.buffer_snapshot;
2773 let newest_selection = self.selections.newest_anchor().clone();
2774 let position = display_map.clip_point(position, Bias::Left);
2775
2776 let start;
2777 let end;
2778 let mode;
2779 let auto_scroll;
2780 match click_count {
2781 1 => {
2782 start = buffer.anchor_before(position.to_point(&display_map));
2783 end = start;
2784 mode = SelectMode::Character;
2785 auto_scroll = true;
2786 }
2787 2 => {
2788 let range = movement::surrounding_word(&display_map, position);
2789 start = buffer.anchor_before(range.start.to_point(&display_map));
2790 end = buffer.anchor_before(range.end.to_point(&display_map));
2791 mode = SelectMode::Word(start..end);
2792 auto_scroll = true;
2793 }
2794 3 => {
2795 let position = display_map
2796 .clip_point(position, Bias::Left)
2797 .to_point(&display_map);
2798 let line_start = display_map.prev_line_boundary(position).0;
2799 let next_line_start = buffer.clip_point(
2800 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2801 Bias::Left,
2802 );
2803 start = buffer.anchor_before(line_start);
2804 end = buffer.anchor_before(next_line_start);
2805 mode = SelectMode::Line(start..end);
2806 auto_scroll = true;
2807 }
2808 _ => {
2809 start = buffer.anchor_before(0);
2810 end = buffer.anchor_before(buffer.len());
2811 mode = SelectMode::All;
2812 auto_scroll = false;
2813 }
2814 }
2815
2816 let point_to_delete: Option<usize> = {
2817 let selected_points: Vec<Selection<Point>> =
2818 self.selections.disjoint_in_range(start..end, cx);
2819
2820 if !add || click_count > 1 {
2821 None
2822 } else if !selected_points.is_empty() {
2823 Some(selected_points[0].id)
2824 } else {
2825 let clicked_point_already_selected =
2826 self.selections.disjoint.iter().find(|selection| {
2827 selection.start.to_point(buffer) == start.to_point(buffer)
2828 || selection.end.to_point(buffer) == end.to_point(buffer)
2829 });
2830
2831 clicked_point_already_selected.map(|selection| selection.id)
2832 }
2833 };
2834
2835 let selections_count = self.selections.count();
2836
2837 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2838 if let Some(point_to_delete) = point_to_delete {
2839 s.delete(point_to_delete);
2840
2841 if selections_count == 1 {
2842 s.set_pending_anchor_range(start..end, mode);
2843 }
2844 } else {
2845 if !add {
2846 s.clear_disjoint();
2847 } else if click_count > 1 {
2848 s.delete(newest_selection.id)
2849 }
2850
2851 s.set_pending_anchor_range(start..end, mode);
2852 }
2853 });
2854 }
2855
2856 fn begin_columnar_selection(
2857 &mut self,
2858 position: DisplayPoint,
2859 goal_column: u32,
2860 reset: bool,
2861 cx: &mut ViewContext<Self>,
2862 ) {
2863 if !self.focus_handle.is_focused(cx) {
2864 self.last_focused_descendant = None;
2865 cx.focus(&self.focus_handle);
2866 }
2867
2868 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2869
2870 if reset {
2871 let pointer_position = display_map
2872 .buffer_snapshot
2873 .anchor_before(position.to_point(&display_map));
2874
2875 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2876 s.clear_disjoint();
2877 s.set_pending_anchor_range(
2878 pointer_position..pointer_position,
2879 SelectMode::Character,
2880 );
2881 });
2882 }
2883
2884 let tail = self.selections.newest::<Point>(cx).tail();
2885 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2886
2887 if !reset {
2888 self.select_columns(
2889 tail.to_display_point(&display_map),
2890 position,
2891 goal_column,
2892 &display_map,
2893 cx,
2894 );
2895 }
2896 }
2897
2898 fn update_selection(
2899 &mut self,
2900 position: DisplayPoint,
2901 goal_column: u32,
2902 scroll_delta: gpui::Point<f32>,
2903 cx: &mut ViewContext<Self>,
2904 ) {
2905 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2906
2907 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2908 let tail = tail.to_display_point(&display_map);
2909 self.select_columns(tail, position, goal_column, &display_map, cx);
2910 } else if let Some(mut pending) = self.selections.pending_anchor() {
2911 let buffer = self.buffer.read(cx).snapshot(cx);
2912 let head;
2913 let tail;
2914 let mode = self.selections.pending_mode().unwrap();
2915 match &mode {
2916 SelectMode::Character => {
2917 head = position.to_point(&display_map);
2918 tail = pending.tail().to_point(&buffer);
2919 }
2920 SelectMode::Word(original_range) => {
2921 let original_display_range = original_range.start.to_display_point(&display_map)
2922 ..original_range.end.to_display_point(&display_map);
2923 let original_buffer_range = original_display_range.start.to_point(&display_map)
2924 ..original_display_range.end.to_point(&display_map);
2925 if movement::is_inside_word(&display_map, position)
2926 || original_display_range.contains(&position)
2927 {
2928 let word_range = movement::surrounding_word(&display_map, position);
2929 if word_range.start < original_display_range.start {
2930 head = word_range.start.to_point(&display_map);
2931 } else {
2932 head = word_range.end.to_point(&display_map);
2933 }
2934 } else {
2935 head = position.to_point(&display_map);
2936 }
2937
2938 if head <= original_buffer_range.start {
2939 tail = original_buffer_range.end;
2940 } else {
2941 tail = original_buffer_range.start;
2942 }
2943 }
2944 SelectMode::Line(original_range) => {
2945 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2946
2947 let position = display_map
2948 .clip_point(position, Bias::Left)
2949 .to_point(&display_map);
2950 let line_start = display_map.prev_line_boundary(position).0;
2951 let next_line_start = buffer.clip_point(
2952 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2953 Bias::Left,
2954 );
2955
2956 if line_start < original_range.start {
2957 head = line_start
2958 } else {
2959 head = next_line_start
2960 }
2961
2962 if head <= original_range.start {
2963 tail = original_range.end;
2964 } else {
2965 tail = original_range.start;
2966 }
2967 }
2968 SelectMode::All => {
2969 return;
2970 }
2971 };
2972
2973 if head < tail {
2974 pending.start = buffer.anchor_before(head);
2975 pending.end = buffer.anchor_before(tail);
2976 pending.reversed = true;
2977 } else {
2978 pending.start = buffer.anchor_before(tail);
2979 pending.end = buffer.anchor_before(head);
2980 pending.reversed = false;
2981 }
2982
2983 self.change_selections(None, cx, |s| {
2984 s.set_pending(pending, mode);
2985 });
2986 } else {
2987 log::error!("update_selection dispatched with no pending selection");
2988 return;
2989 }
2990
2991 self.apply_scroll_delta(scroll_delta, cx);
2992 cx.notify();
2993 }
2994
2995 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2996 self.columnar_selection_tail.take();
2997 if self.selections.pending_anchor().is_some() {
2998 let selections = self.selections.all::<usize>(cx);
2999 self.change_selections(None, cx, |s| {
3000 s.select(selections);
3001 s.clear_pending();
3002 });
3003 }
3004 }
3005
3006 fn select_columns(
3007 &mut self,
3008 tail: DisplayPoint,
3009 head: DisplayPoint,
3010 goal_column: u32,
3011 display_map: &DisplaySnapshot,
3012 cx: &mut ViewContext<Self>,
3013 ) {
3014 let start_row = cmp::min(tail.row(), head.row());
3015 let end_row = cmp::max(tail.row(), head.row());
3016 let start_column = cmp::min(tail.column(), goal_column);
3017 let end_column = cmp::max(tail.column(), goal_column);
3018 let reversed = start_column < tail.column();
3019
3020 let selection_ranges = (start_row.0..=end_row.0)
3021 .map(DisplayRow)
3022 .filter_map(|row| {
3023 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
3024 let start = display_map
3025 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
3026 .to_point(display_map);
3027 let end = display_map
3028 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
3029 .to_point(display_map);
3030 if reversed {
3031 Some(end..start)
3032 } else {
3033 Some(start..end)
3034 }
3035 } else {
3036 None
3037 }
3038 })
3039 .collect::<Vec<_>>();
3040
3041 self.change_selections(None, cx, |s| {
3042 s.select_ranges(selection_ranges);
3043 });
3044 cx.notify();
3045 }
3046
3047 pub fn has_pending_nonempty_selection(&self) -> bool {
3048 let pending_nonempty_selection = match self.selections.pending_anchor() {
3049 Some(Selection { start, end, .. }) => start != end,
3050 None => false,
3051 };
3052
3053 pending_nonempty_selection
3054 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
3055 }
3056
3057 pub fn has_pending_selection(&self) -> bool {
3058 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
3059 }
3060
3061 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
3062 if self.clear_expanded_diff_hunks(cx) {
3063 cx.notify();
3064 return;
3065 }
3066 if self.dismiss_menus_and_popups(true, cx) {
3067 return;
3068 }
3069
3070 if self.mode == EditorMode::Full
3071 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3072 {
3073 return;
3074 }
3075
3076 cx.propagate();
3077 }
3078
3079 pub fn dismiss_menus_and_popups(
3080 &mut self,
3081 should_report_inline_completion_event: bool,
3082 cx: &mut ViewContext<Self>,
3083 ) -> bool {
3084 if self.take_rename(false, cx).is_some() {
3085 return true;
3086 }
3087
3088 if hide_hover(self, cx) {
3089 return true;
3090 }
3091
3092 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3093 return true;
3094 }
3095
3096 if self.hide_context_menu(cx).is_some() {
3097 return true;
3098 }
3099
3100 if self.mouse_context_menu.take().is_some() {
3101 return true;
3102 }
3103
3104 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3105 return true;
3106 }
3107
3108 if self.snippet_stack.pop().is_some() {
3109 return true;
3110 }
3111
3112 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3113 self.dismiss_diagnostics(cx);
3114 return true;
3115 }
3116
3117 false
3118 }
3119
3120 fn linked_editing_ranges_for(
3121 &self,
3122 selection: Range<text::Anchor>,
3123 cx: &AppContext,
3124 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3125 if self.linked_edit_ranges.is_empty() {
3126 return None;
3127 }
3128 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3129 selection.end.buffer_id.and_then(|end_buffer_id| {
3130 if selection.start.buffer_id != Some(end_buffer_id) {
3131 return None;
3132 }
3133 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3134 let snapshot = buffer.read(cx).snapshot();
3135 self.linked_edit_ranges
3136 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3137 .map(|ranges| (ranges, snapshot, buffer))
3138 })?;
3139 use text::ToOffset as TO;
3140 // find offset from the start of current range to current cursor position
3141 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3142
3143 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3144 let start_difference = start_offset - start_byte_offset;
3145 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3146 let end_difference = end_offset - start_byte_offset;
3147 // Current range has associated linked ranges.
3148 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3149 for range in linked_ranges.iter() {
3150 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3151 let end_offset = start_offset + end_difference;
3152 let start_offset = start_offset + start_difference;
3153 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3154 continue;
3155 }
3156 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3157 if s.start.buffer_id != selection.start.buffer_id
3158 || s.end.buffer_id != selection.end.buffer_id
3159 {
3160 return false;
3161 }
3162 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3163 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3164 }) {
3165 continue;
3166 }
3167 let start = buffer_snapshot.anchor_after(start_offset);
3168 let end = buffer_snapshot.anchor_after(end_offset);
3169 linked_edits
3170 .entry(buffer.clone())
3171 .or_default()
3172 .push(start..end);
3173 }
3174 Some(linked_edits)
3175 }
3176
3177 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3178 let text: Arc<str> = text.into();
3179
3180 if self.read_only(cx) {
3181 return;
3182 }
3183
3184 let selections = self.selections.all_adjusted(cx);
3185 let mut bracket_inserted = false;
3186 let mut edits = Vec::new();
3187 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3188 let mut new_selections = Vec::with_capacity(selections.len());
3189 let mut new_autoclose_regions = Vec::new();
3190 let snapshot = self.buffer.read(cx).read(cx);
3191
3192 for (selection, autoclose_region) in
3193 self.selections_with_autoclose_regions(selections, &snapshot)
3194 {
3195 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3196 // Determine if the inserted text matches the opening or closing
3197 // bracket of any of this language's bracket pairs.
3198 let mut bracket_pair = None;
3199 let mut is_bracket_pair_start = false;
3200 let mut is_bracket_pair_end = false;
3201 if !text.is_empty() {
3202 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3203 // and they are removing the character that triggered IME popup.
3204 for (pair, enabled) in scope.brackets() {
3205 if !pair.close && !pair.surround {
3206 continue;
3207 }
3208
3209 if enabled && pair.start.ends_with(text.as_ref()) {
3210 bracket_pair = Some(pair.clone());
3211 is_bracket_pair_start = true;
3212 break;
3213 }
3214 if pair.end.as_str() == text.as_ref() {
3215 bracket_pair = Some(pair.clone());
3216 is_bracket_pair_end = true;
3217 break;
3218 }
3219 }
3220 }
3221
3222 if let Some(bracket_pair) = bracket_pair {
3223 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3224 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3225 let auto_surround =
3226 self.use_auto_surround && snapshot_settings.use_auto_surround;
3227 if selection.is_empty() {
3228 if is_bracket_pair_start {
3229 let prefix_len = bracket_pair.start.len() - text.len();
3230
3231 // If the inserted text is a suffix of an opening bracket and the
3232 // selection is preceded by the rest of the opening bracket, then
3233 // insert the closing bracket.
3234 let following_text_allows_autoclose = snapshot
3235 .chars_at(selection.start)
3236 .next()
3237 .map_or(true, |c| scope.should_autoclose_before(c));
3238 let preceding_text_matches_prefix = prefix_len == 0
3239 || (selection.start.column >= (prefix_len as u32)
3240 && snapshot.contains_str_at(
3241 Point::new(
3242 selection.start.row,
3243 selection.start.column - (prefix_len as u32),
3244 ),
3245 &bracket_pair.start[..prefix_len],
3246 ));
3247
3248 if autoclose
3249 && bracket_pair.close
3250 && following_text_allows_autoclose
3251 && preceding_text_matches_prefix
3252 {
3253 let anchor = snapshot.anchor_before(selection.end);
3254 new_selections.push((selection.map(|_| anchor), text.len()));
3255 new_autoclose_regions.push((
3256 anchor,
3257 text.len(),
3258 selection.id,
3259 bracket_pair.clone(),
3260 ));
3261 edits.push((
3262 selection.range(),
3263 format!("{}{}", text, bracket_pair.end).into(),
3264 ));
3265 bracket_inserted = true;
3266 continue;
3267 }
3268 }
3269
3270 if let Some(region) = autoclose_region {
3271 // If the selection is followed by an auto-inserted closing bracket,
3272 // then don't insert that closing bracket again; just move the selection
3273 // past the closing bracket.
3274 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3275 && text.as_ref() == region.pair.end.as_str();
3276 if should_skip {
3277 let anchor = snapshot.anchor_after(selection.end);
3278 new_selections
3279 .push((selection.map(|_| anchor), region.pair.end.len()));
3280 continue;
3281 }
3282 }
3283
3284 let always_treat_brackets_as_autoclosed = snapshot
3285 .settings_at(selection.start, cx)
3286 .always_treat_brackets_as_autoclosed;
3287 if always_treat_brackets_as_autoclosed
3288 && is_bracket_pair_end
3289 && snapshot.contains_str_at(selection.end, text.as_ref())
3290 {
3291 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3292 // and the inserted text is a closing bracket and the selection is followed
3293 // by the closing bracket then move the selection past the closing bracket.
3294 let anchor = snapshot.anchor_after(selection.end);
3295 new_selections.push((selection.map(|_| anchor), text.len()));
3296 continue;
3297 }
3298 }
3299 // If an opening bracket is 1 character long and is typed while
3300 // text is selected, then surround that text with the bracket pair.
3301 else if auto_surround
3302 && bracket_pair.surround
3303 && is_bracket_pair_start
3304 && bracket_pair.start.chars().count() == 1
3305 {
3306 edits.push((selection.start..selection.start, text.clone()));
3307 edits.push((
3308 selection.end..selection.end,
3309 bracket_pair.end.as_str().into(),
3310 ));
3311 bracket_inserted = true;
3312 new_selections.push((
3313 Selection {
3314 id: selection.id,
3315 start: snapshot.anchor_after(selection.start),
3316 end: snapshot.anchor_before(selection.end),
3317 reversed: selection.reversed,
3318 goal: selection.goal,
3319 },
3320 0,
3321 ));
3322 continue;
3323 }
3324 }
3325 }
3326
3327 if self.auto_replace_emoji_shortcode
3328 && selection.is_empty()
3329 && text.as_ref().ends_with(':')
3330 {
3331 if let Some(possible_emoji_short_code) =
3332 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3333 {
3334 if !possible_emoji_short_code.is_empty() {
3335 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3336 let emoji_shortcode_start = Point::new(
3337 selection.start.row,
3338 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3339 );
3340
3341 // Remove shortcode from buffer
3342 edits.push((
3343 emoji_shortcode_start..selection.start,
3344 "".to_string().into(),
3345 ));
3346 new_selections.push((
3347 Selection {
3348 id: selection.id,
3349 start: snapshot.anchor_after(emoji_shortcode_start),
3350 end: snapshot.anchor_before(selection.start),
3351 reversed: selection.reversed,
3352 goal: selection.goal,
3353 },
3354 0,
3355 ));
3356
3357 // Insert emoji
3358 let selection_start_anchor = snapshot.anchor_after(selection.start);
3359 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3360 edits.push((selection.start..selection.end, emoji.to_string().into()));
3361
3362 continue;
3363 }
3364 }
3365 }
3366 }
3367
3368 // If not handling any auto-close operation, then just replace the selected
3369 // text with the given input and move the selection to the end of the
3370 // newly inserted text.
3371 let anchor = snapshot.anchor_after(selection.end);
3372 if !self.linked_edit_ranges.is_empty() {
3373 let start_anchor = snapshot.anchor_before(selection.start);
3374
3375 let is_word_char = text.chars().next().map_or(true, |char| {
3376 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3377 classifier.is_word(char)
3378 });
3379
3380 if is_word_char {
3381 if let Some(ranges) = self
3382 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3383 {
3384 for (buffer, edits) in ranges {
3385 linked_edits
3386 .entry(buffer.clone())
3387 .or_default()
3388 .extend(edits.into_iter().map(|range| (range, text.clone())));
3389 }
3390 }
3391 }
3392 }
3393
3394 new_selections.push((selection.map(|_| anchor), 0));
3395 edits.push((selection.start..selection.end, text.clone()));
3396 }
3397
3398 drop(snapshot);
3399
3400 self.transact(cx, |this, cx| {
3401 this.buffer.update(cx, |buffer, cx| {
3402 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3403 });
3404 for (buffer, edits) in linked_edits {
3405 buffer.update(cx, |buffer, cx| {
3406 let snapshot = buffer.snapshot();
3407 let edits = edits
3408 .into_iter()
3409 .map(|(range, text)| {
3410 use text::ToPoint as TP;
3411 let end_point = TP::to_point(&range.end, &snapshot);
3412 let start_point = TP::to_point(&range.start, &snapshot);
3413 (start_point..end_point, text)
3414 })
3415 .sorted_by_key(|(range, _)| range.start)
3416 .collect::<Vec<_>>();
3417 buffer.edit(edits, None, cx);
3418 })
3419 }
3420 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3421 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3422 let snapshot = this.buffer.read(cx).read(cx);
3423 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
3424 .zip(new_selection_deltas)
3425 .map(|(selection, delta)| Selection {
3426 id: selection.id,
3427 start: selection.start + delta,
3428 end: selection.end + delta,
3429 reversed: selection.reversed,
3430 goal: SelectionGoal::None,
3431 })
3432 .collect::<Vec<_>>();
3433
3434 let mut i = 0;
3435 for (position, delta, selection_id, pair) in new_autoclose_regions {
3436 let position = position.to_offset(&snapshot) + delta;
3437 let start = snapshot.anchor_before(position);
3438 let end = snapshot.anchor_after(position);
3439 while let Some(existing_state) = this.autoclose_regions.get(i) {
3440 match existing_state.range.start.cmp(&start, &snapshot) {
3441 Ordering::Less => i += 1,
3442 Ordering::Greater => break,
3443 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
3444 Ordering::Less => i += 1,
3445 Ordering::Equal => break,
3446 Ordering::Greater => break,
3447 },
3448 }
3449 }
3450 this.autoclose_regions.insert(
3451 i,
3452 AutocloseRegion {
3453 selection_id,
3454 range: start..end,
3455 pair,
3456 },
3457 );
3458 }
3459
3460 drop(snapshot);
3461 let had_active_inline_completion = this.has_active_inline_completion(cx);
3462 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3463 s.select(new_selections)
3464 });
3465
3466 if !bracket_inserted {
3467 if let Some(on_type_format_task) =
3468 this.trigger_on_type_formatting(text.to_string(), cx)
3469 {
3470 on_type_format_task.detach_and_log_err(cx);
3471 }
3472 }
3473
3474 let editor_settings = EditorSettings::get_global(cx);
3475 if bracket_inserted
3476 && (editor_settings.auto_signature_help
3477 || editor_settings.show_signature_help_after_edits)
3478 {
3479 this.show_signature_help(&ShowSignatureHelp, cx);
3480 }
3481
3482 let trigger_in_words = !had_active_inline_completion;
3483 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3484 linked_editing_ranges::refresh_linked_ranges(this, cx);
3485 this.refresh_inline_completion(true, false, cx);
3486 });
3487 }
3488
3489 fn find_possible_emoji_shortcode_at_position(
3490 snapshot: &MultiBufferSnapshot,
3491 position: Point,
3492 ) -> Option<String> {
3493 let mut chars = Vec::new();
3494 let mut found_colon = false;
3495 for char in snapshot.reversed_chars_at(position).take(100) {
3496 // Found a possible emoji shortcode in the middle of the buffer
3497 if found_colon {
3498 if char.is_whitespace() {
3499 chars.reverse();
3500 return Some(chars.iter().collect());
3501 }
3502 // If the previous character is not a whitespace, we are in the middle of a word
3503 // and we only want to complete the shortcode if the word is made up of other emojis
3504 let mut containing_word = String::new();
3505 for ch in snapshot
3506 .reversed_chars_at(position)
3507 .skip(chars.len() + 1)
3508 .take(100)
3509 {
3510 if ch.is_whitespace() {
3511 break;
3512 }
3513 containing_word.push(ch);
3514 }
3515 let containing_word = containing_word.chars().rev().collect::<String>();
3516 if util::word_consists_of_emojis(containing_word.as_str()) {
3517 chars.reverse();
3518 return Some(chars.iter().collect());
3519 }
3520 }
3521
3522 if char.is_whitespace() || !char.is_ascii() {
3523 return None;
3524 }
3525 if char == ':' {
3526 found_colon = true;
3527 } else {
3528 chars.push(char);
3529 }
3530 }
3531 // Found a possible emoji shortcode at the beginning of the buffer
3532 chars.reverse();
3533 Some(chars.iter().collect())
3534 }
3535
3536 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3537 self.transact(cx, |this, cx| {
3538 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3539 let selections = this.selections.all::<usize>(cx);
3540 let multi_buffer = this.buffer.read(cx);
3541 let buffer = multi_buffer.snapshot(cx);
3542 selections
3543 .iter()
3544 .map(|selection| {
3545 let start_point = selection.start.to_point(&buffer);
3546 let mut indent =
3547 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3548 indent.len = cmp::min(indent.len, start_point.column);
3549 let start = selection.start;
3550 let end = selection.end;
3551 let selection_is_empty = start == end;
3552 let language_scope = buffer.language_scope_at(start);
3553 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3554 &language_scope
3555 {
3556 let leading_whitespace_len = buffer
3557 .reversed_chars_at(start)
3558 .take_while(|c| c.is_whitespace() && *c != '\n')
3559 .map(|c| c.len_utf8())
3560 .sum::<usize>();
3561
3562 let trailing_whitespace_len = buffer
3563 .chars_at(end)
3564 .take_while(|c| c.is_whitespace() && *c != '\n')
3565 .map(|c| c.len_utf8())
3566 .sum::<usize>();
3567
3568 let insert_extra_newline =
3569 language.brackets().any(|(pair, enabled)| {
3570 let pair_start = pair.start.trim_end();
3571 let pair_end = pair.end.trim_start();
3572
3573 enabled
3574 && pair.newline
3575 && buffer.contains_str_at(
3576 end + trailing_whitespace_len,
3577 pair_end,
3578 )
3579 && buffer.contains_str_at(
3580 (start - leading_whitespace_len)
3581 .saturating_sub(pair_start.len()),
3582 pair_start,
3583 )
3584 });
3585
3586 // Comment extension on newline is allowed only for cursor selections
3587 let comment_delimiter = maybe!({
3588 if !selection_is_empty {
3589 return None;
3590 }
3591
3592 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3593 return None;
3594 }
3595
3596 let delimiters = language.line_comment_prefixes();
3597 let max_len_of_delimiter =
3598 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3599 let (snapshot, range) =
3600 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3601
3602 let mut index_of_first_non_whitespace = 0;
3603 let comment_candidate = snapshot
3604 .chars_for_range(range)
3605 .skip_while(|c| {
3606 let should_skip = c.is_whitespace();
3607 if should_skip {
3608 index_of_first_non_whitespace += 1;
3609 }
3610 should_skip
3611 })
3612 .take(max_len_of_delimiter)
3613 .collect::<String>();
3614 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3615 comment_candidate.starts_with(comment_prefix.as_ref())
3616 })?;
3617 let cursor_is_placed_after_comment_marker =
3618 index_of_first_non_whitespace + comment_prefix.len()
3619 <= start_point.column as usize;
3620 if cursor_is_placed_after_comment_marker {
3621 Some(comment_prefix.clone())
3622 } else {
3623 None
3624 }
3625 });
3626 (comment_delimiter, insert_extra_newline)
3627 } else {
3628 (None, false)
3629 };
3630
3631 let capacity_for_delimiter = comment_delimiter
3632 .as_deref()
3633 .map(str::len)
3634 .unwrap_or_default();
3635 let mut new_text =
3636 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3637 new_text.push('\n');
3638 new_text.extend(indent.chars());
3639 if let Some(delimiter) = &comment_delimiter {
3640 new_text.push_str(delimiter);
3641 }
3642 if insert_extra_newline {
3643 new_text = new_text.repeat(2);
3644 }
3645
3646 let anchor = buffer.anchor_after(end);
3647 let new_selection = selection.map(|_| anchor);
3648 (
3649 (start..end, new_text),
3650 (insert_extra_newline, new_selection),
3651 )
3652 })
3653 .unzip()
3654 };
3655
3656 this.edit_with_autoindent(edits, cx);
3657 let buffer = this.buffer.read(cx).snapshot(cx);
3658 let new_selections = selection_fixup_info
3659 .into_iter()
3660 .map(|(extra_newline_inserted, new_selection)| {
3661 let mut cursor = new_selection.end.to_point(&buffer);
3662 if extra_newline_inserted {
3663 cursor.row -= 1;
3664 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3665 }
3666 new_selection.map(|_| cursor)
3667 })
3668 .collect();
3669
3670 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3671 this.refresh_inline_completion(true, false, cx);
3672 });
3673 }
3674
3675 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3676 let buffer = self.buffer.read(cx);
3677 let snapshot = buffer.snapshot(cx);
3678
3679 let mut edits = Vec::new();
3680 let mut rows = Vec::new();
3681
3682 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3683 let cursor = selection.head();
3684 let row = cursor.row;
3685
3686 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3687
3688 let newline = "\n".to_string();
3689 edits.push((start_of_line..start_of_line, newline));
3690
3691 rows.push(row + rows_inserted as u32);
3692 }
3693
3694 self.transact(cx, |editor, cx| {
3695 editor.edit(edits, cx);
3696
3697 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3698 let mut index = 0;
3699 s.move_cursors_with(|map, _, _| {
3700 let row = rows[index];
3701 index += 1;
3702
3703 let point = Point::new(row, 0);
3704 let boundary = map.next_line_boundary(point).1;
3705 let clipped = map.clip_point(boundary, Bias::Left);
3706
3707 (clipped, SelectionGoal::None)
3708 });
3709 });
3710
3711 let mut indent_edits = Vec::new();
3712 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3713 for row in rows {
3714 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3715 for (row, indent) in indents {
3716 if indent.len == 0 {
3717 continue;
3718 }
3719
3720 let text = match indent.kind {
3721 IndentKind::Space => " ".repeat(indent.len as usize),
3722 IndentKind::Tab => "\t".repeat(indent.len as usize),
3723 };
3724 let point = Point::new(row.0, 0);
3725 indent_edits.push((point..point, text));
3726 }
3727 }
3728 editor.edit(indent_edits, cx);
3729 });
3730 }
3731
3732 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3733 let buffer = self.buffer.read(cx);
3734 let snapshot = buffer.snapshot(cx);
3735
3736 let mut edits = Vec::new();
3737 let mut rows = Vec::new();
3738 let mut rows_inserted = 0;
3739
3740 for selection in self.selections.all_adjusted(cx) {
3741 let cursor = selection.head();
3742 let row = cursor.row;
3743
3744 let point = Point::new(row + 1, 0);
3745 let start_of_line = snapshot.clip_point(point, Bias::Left);
3746
3747 let newline = "\n".to_string();
3748 edits.push((start_of_line..start_of_line, newline));
3749
3750 rows_inserted += 1;
3751 rows.push(row + rows_inserted);
3752 }
3753
3754 self.transact(cx, |editor, cx| {
3755 editor.edit(edits, cx);
3756
3757 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3758 let mut index = 0;
3759 s.move_cursors_with(|map, _, _| {
3760 let row = rows[index];
3761 index += 1;
3762
3763 let point = Point::new(row, 0);
3764 let boundary = map.next_line_boundary(point).1;
3765 let clipped = map.clip_point(boundary, Bias::Left);
3766
3767 (clipped, SelectionGoal::None)
3768 });
3769 });
3770
3771 let mut indent_edits = Vec::new();
3772 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3773 for row in rows {
3774 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3775 for (row, indent) in indents {
3776 if indent.len == 0 {
3777 continue;
3778 }
3779
3780 let text = match indent.kind {
3781 IndentKind::Space => " ".repeat(indent.len as usize),
3782 IndentKind::Tab => "\t".repeat(indent.len as usize),
3783 };
3784 let point = Point::new(row.0, 0);
3785 indent_edits.push((point..point, text));
3786 }
3787 }
3788 editor.edit(indent_edits, cx);
3789 });
3790 }
3791
3792 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3793 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3794 original_indent_columns: Vec::new(),
3795 });
3796 self.insert_with_autoindent_mode(text, autoindent, cx);
3797 }
3798
3799 fn insert_with_autoindent_mode(
3800 &mut self,
3801 text: &str,
3802 autoindent_mode: Option<AutoindentMode>,
3803 cx: &mut ViewContext<Self>,
3804 ) {
3805 if self.read_only(cx) {
3806 return;
3807 }
3808
3809 let text: Arc<str> = text.into();
3810 self.transact(cx, |this, cx| {
3811 let old_selections = this.selections.all_adjusted(cx);
3812 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3813 let anchors = {
3814 let snapshot = buffer.read(cx);
3815 old_selections
3816 .iter()
3817 .map(|s| {
3818 let anchor = snapshot.anchor_after(s.head());
3819 s.map(|_| anchor)
3820 })
3821 .collect::<Vec<_>>()
3822 };
3823 buffer.edit(
3824 old_selections
3825 .iter()
3826 .map(|s| (s.start..s.end, text.clone())),
3827 autoindent_mode,
3828 cx,
3829 );
3830 anchors
3831 });
3832
3833 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3834 s.select_anchors(selection_anchors);
3835 })
3836 });
3837 }
3838
3839 fn trigger_completion_on_input(
3840 &mut self,
3841 text: &str,
3842 trigger_in_words: bool,
3843 cx: &mut ViewContext<Self>,
3844 ) {
3845 if self.is_completion_trigger(text, trigger_in_words, cx) {
3846 self.show_completions(
3847 &ShowCompletions {
3848 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3849 },
3850 cx,
3851 );
3852 } else {
3853 self.hide_context_menu(cx);
3854 }
3855 }
3856
3857 fn is_completion_trigger(
3858 &self,
3859 text: &str,
3860 trigger_in_words: bool,
3861 cx: &mut ViewContext<Self>,
3862 ) -> bool {
3863 let position = self.selections.newest_anchor().head();
3864 let multibuffer = self.buffer.read(cx);
3865 let Some(buffer) = position
3866 .buffer_id
3867 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3868 else {
3869 return false;
3870 };
3871
3872 if let Some(completion_provider) = &self.completion_provider {
3873 completion_provider.is_completion_trigger(
3874 &buffer,
3875 position.text_anchor,
3876 text,
3877 trigger_in_words,
3878 cx,
3879 )
3880 } else {
3881 false
3882 }
3883 }
3884
3885 /// If any empty selections is touching the start of its innermost containing autoclose
3886 /// region, expand it to select the brackets.
3887 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3888 let selections = self.selections.all::<usize>(cx);
3889 let buffer = self.buffer.read(cx).read(cx);
3890 let new_selections = self
3891 .selections_with_autoclose_regions(selections, &buffer)
3892 .map(|(mut selection, region)| {
3893 if !selection.is_empty() {
3894 return selection;
3895 }
3896
3897 if let Some(region) = region {
3898 let mut range = region.range.to_offset(&buffer);
3899 if selection.start == range.start && range.start >= region.pair.start.len() {
3900 range.start -= region.pair.start.len();
3901 if buffer.contains_str_at(range.start, ®ion.pair.start)
3902 && buffer.contains_str_at(range.end, ®ion.pair.end)
3903 {
3904 range.end += region.pair.end.len();
3905 selection.start = range.start;
3906 selection.end = range.end;
3907
3908 return selection;
3909 }
3910 }
3911 }
3912
3913 let always_treat_brackets_as_autoclosed = buffer
3914 .settings_at(selection.start, cx)
3915 .always_treat_brackets_as_autoclosed;
3916
3917 if !always_treat_brackets_as_autoclosed {
3918 return selection;
3919 }
3920
3921 if let Some(scope) = buffer.language_scope_at(selection.start) {
3922 for (pair, enabled) in scope.brackets() {
3923 if !enabled || !pair.close {
3924 continue;
3925 }
3926
3927 if buffer.contains_str_at(selection.start, &pair.end) {
3928 let pair_start_len = pair.start.len();
3929 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3930 {
3931 selection.start -= pair_start_len;
3932 selection.end += pair.end.len();
3933
3934 return selection;
3935 }
3936 }
3937 }
3938 }
3939
3940 selection
3941 })
3942 .collect();
3943
3944 drop(buffer);
3945 self.change_selections(None, cx, |selections| selections.select(new_selections));
3946 }
3947
3948 /// Iterate the given selections, and for each one, find the smallest surrounding
3949 /// autoclose region. This uses the ordering of the selections and the autoclose
3950 /// regions to avoid repeated comparisons.
3951 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3952 &'a self,
3953 selections: impl IntoIterator<Item = Selection<D>>,
3954 buffer: &'a MultiBufferSnapshot,
3955 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3956 let mut i = 0;
3957 let mut regions = self.autoclose_regions.as_slice();
3958 selections.into_iter().map(move |selection| {
3959 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3960
3961 let mut enclosing = None;
3962 while let Some(pair_state) = regions.get(i) {
3963 if pair_state.range.end.to_offset(buffer) < range.start {
3964 regions = ®ions[i + 1..];
3965 i = 0;
3966 } else if pair_state.range.start.to_offset(buffer) > range.end {
3967 break;
3968 } else {
3969 if pair_state.selection_id == selection.id {
3970 enclosing = Some(pair_state);
3971 }
3972 i += 1;
3973 }
3974 }
3975
3976 (selection.clone(), enclosing)
3977 })
3978 }
3979
3980 /// Remove any autoclose regions that no longer contain their selection.
3981 fn invalidate_autoclose_regions(
3982 &mut self,
3983 mut selections: &[Selection<Anchor>],
3984 buffer: &MultiBufferSnapshot,
3985 ) {
3986 self.autoclose_regions.retain(|state| {
3987 let mut i = 0;
3988 while let Some(selection) = selections.get(i) {
3989 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3990 selections = &selections[1..];
3991 continue;
3992 }
3993 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3994 break;
3995 }
3996 if selection.id == state.selection_id {
3997 return true;
3998 } else {
3999 i += 1;
4000 }
4001 }
4002 false
4003 });
4004 }
4005
4006 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
4007 let offset = position.to_offset(buffer);
4008 let (word_range, kind) = buffer.surrounding_word(offset, true);
4009 if offset > word_range.start && kind == Some(CharKind::Word) {
4010 Some(
4011 buffer
4012 .text_for_range(word_range.start..offset)
4013 .collect::<String>(),
4014 )
4015 } else {
4016 None
4017 }
4018 }
4019
4020 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
4021 self.refresh_inlay_hints(
4022 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
4023 cx,
4024 );
4025 }
4026
4027 pub fn inlay_hints_enabled(&self) -> bool {
4028 self.inlay_hint_cache.enabled
4029 }
4030
4031 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
4032 if self.project.is_none() || self.mode != EditorMode::Full {
4033 return;
4034 }
4035
4036 let reason_description = reason.description();
4037 let ignore_debounce = matches!(
4038 reason,
4039 InlayHintRefreshReason::SettingsChange(_)
4040 | InlayHintRefreshReason::Toggle(_)
4041 | InlayHintRefreshReason::ExcerptsRemoved(_)
4042 );
4043 let (invalidate_cache, required_languages) = match reason {
4044 InlayHintRefreshReason::Toggle(enabled) => {
4045 self.inlay_hint_cache.enabled = enabled;
4046 if enabled {
4047 (InvalidationStrategy::RefreshRequested, None)
4048 } else {
4049 self.inlay_hint_cache.clear();
4050 self.splice_inlays(
4051 self.visible_inlay_hints(cx)
4052 .iter()
4053 .map(|inlay| inlay.id)
4054 .collect(),
4055 Vec::new(),
4056 cx,
4057 );
4058 return;
4059 }
4060 }
4061 InlayHintRefreshReason::SettingsChange(new_settings) => {
4062 match self.inlay_hint_cache.update_settings(
4063 &self.buffer,
4064 new_settings,
4065 self.visible_inlay_hints(cx),
4066 cx,
4067 ) {
4068 ControlFlow::Break(Some(InlaySplice {
4069 to_remove,
4070 to_insert,
4071 })) => {
4072 self.splice_inlays(to_remove, to_insert, cx);
4073 return;
4074 }
4075 ControlFlow::Break(None) => return,
4076 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4077 }
4078 }
4079 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4080 if let Some(InlaySplice {
4081 to_remove,
4082 to_insert,
4083 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4084 {
4085 self.splice_inlays(to_remove, to_insert, cx);
4086 }
4087 return;
4088 }
4089 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4090 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4091 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4092 }
4093 InlayHintRefreshReason::RefreshRequested => {
4094 (InvalidationStrategy::RefreshRequested, None)
4095 }
4096 };
4097
4098 if let Some(InlaySplice {
4099 to_remove,
4100 to_insert,
4101 }) = self.inlay_hint_cache.spawn_hint_refresh(
4102 reason_description,
4103 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4104 invalidate_cache,
4105 ignore_debounce,
4106 cx,
4107 ) {
4108 self.splice_inlays(to_remove, to_insert, cx);
4109 }
4110 }
4111
4112 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4113 self.display_map
4114 .read(cx)
4115 .current_inlays()
4116 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4117 .cloned()
4118 .collect()
4119 }
4120
4121 pub fn excerpts_for_inlay_hints_query(
4122 &self,
4123 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4124 cx: &mut ViewContext<Editor>,
4125 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4126 let Some(project) = self.project.as_ref() else {
4127 return HashMap::default();
4128 };
4129 let project = project.read(cx);
4130 let multi_buffer = self.buffer().read(cx);
4131 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4132 let multi_buffer_visible_start = self
4133 .scroll_manager
4134 .anchor()
4135 .anchor
4136 .to_point(&multi_buffer_snapshot);
4137 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4138 multi_buffer_visible_start
4139 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4140 Bias::Left,
4141 );
4142 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4143 multi_buffer
4144 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4145 .into_iter()
4146 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4147 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4148 let buffer = buffer_handle.read(cx);
4149 let buffer_file = project::File::from_dyn(buffer.file())?;
4150 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4151 let worktree_entry = buffer_worktree
4152 .read(cx)
4153 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4154 if worktree_entry.is_ignored {
4155 return None;
4156 }
4157
4158 let language = buffer.language()?;
4159 if let Some(restrict_to_languages) = restrict_to_languages {
4160 if !restrict_to_languages.contains(language) {
4161 return None;
4162 }
4163 }
4164 Some((
4165 excerpt_id,
4166 (
4167 buffer_handle,
4168 buffer.version().clone(),
4169 excerpt_visible_range,
4170 ),
4171 ))
4172 })
4173 .collect()
4174 }
4175
4176 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4177 TextLayoutDetails {
4178 text_system: cx.text_system().clone(),
4179 editor_style: self.style.clone().unwrap(),
4180 rem_size: cx.rem_size(),
4181 scroll_anchor: self.scroll_manager.anchor(),
4182 visible_rows: self.visible_line_count(),
4183 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4184 }
4185 }
4186
4187 fn splice_inlays(
4188 &self,
4189 to_remove: Vec<InlayId>,
4190 to_insert: Vec<Inlay>,
4191 cx: &mut ViewContext<Self>,
4192 ) {
4193 self.display_map.update(cx, |display_map, cx| {
4194 display_map.splice_inlays(to_remove, to_insert, cx);
4195 });
4196 cx.notify();
4197 }
4198
4199 fn trigger_on_type_formatting(
4200 &self,
4201 input: String,
4202 cx: &mut ViewContext<Self>,
4203 ) -> Option<Task<Result<()>>> {
4204 if input.len() != 1 {
4205 return None;
4206 }
4207
4208 let project = self.project.as_ref()?;
4209 let position = self.selections.newest_anchor().head();
4210 let (buffer, buffer_position) = self
4211 .buffer
4212 .read(cx)
4213 .text_anchor_for_position(position, cx)?;
4214
4215 let settings = language_settings::language_settings(
4216 buffer.read(cx).language_at(buffer_position).as_ref(),
4217 buffer.read(cx).file(),
4218 cx,
4219 );
4220 if !settings.use_on_type_format {
4221 return None;
4222 }
4223
4224 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4225 // hence we do LSP request & edit on host side only — add formats to host's history.
4226 let push_to_lsp_host_history = true;
4227 // If this is not the host, append its history with new edits.
4228 let push_to_client_history = project.read(cx).is_via_collab();
4229
4230 let on_type_formatting = project.update(cx, |project, cx| {
4231 project.on_type_format(
4232 buffer.clone(),
4233 buffer_position,
4234 input,
4235 push_to_lsp_host_history,
4236 cx,
4237 )
4238 });
4239 Some(cx.spawn(|editor, mut cx| async move {
4240 if let Some(transaction) = on_type_formatting.await? {
4241 if push_to_client_history {
4242 buffer
4243 .update(&mut cx, |buffer, _| {
4244 buffer.push_transaction(transaction, Instant::now());
4245 })
4246 .ok();
4247 }
4248 editor.update(&mut cx, |editor, cx| {
4249 editor.refresh_document_highlights(cx);
4250 })?;
4251 }
4252 Ok(())
4253 }))
4254 }
4255
4256 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4257 if self.pending_rename.is_some() {
4258 return;
4259 }
4260
4261 let Some(provider) = self.completion_provider.as_ref() else {
4262 return;
4263 };
4264
4265 let position = self.selections.newest_anchor().head();
4266 let (buffer, buffer_position) =
4267 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4268 output
4269 } else {
4270 return;
4271 };
4272
4273 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4274 let is_followup_invoke = {
4275 let context_menu_state = self.context_menu.read();
4276 matches!(
4277 context_menu_state.deref(),
4278 Some(ContextMenu::Completions(_))
4279 )
4280 };
4281 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4282 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4283 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4284 CompletionTriggerKind::TRIGGER_CHARACTER
4285 }
4286
4287 _ => CompletionTriggerKind::INVOKED,
4288 };
4289 let completion_context = CompletionContext {
4290 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4291 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4292 Some(String::from(trigger))
4293 } else {
4294 None
4295 }
4296 }),
4297 trigger_kind,
4298 };
4299 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4300 let sort_completions = provider.sort_completions();
4301
4302 let id = post_inc(&mut self.next_completion_id);
4303 let task = cx.spawn(|this, mut cx| {
4304 async move {
4305 this.update(&mut cx, |this, _| {
4306 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4307 })?;
4308 let completions = completions.await.log_err();
4309 let menu = if let Some(completions) = completions {
4310 let mut menu = CompletionsMenu {
4311 id,
4312 sort_completions,
4313 initial_position: position,
4314 match_candidates: completions
4315 .iter()
4316 .enumerate()
4317 .map(|(id, completion)| {
4318 StringMatchCandidate::new(
4319 id,
4320 completion.label.text[completion.label.filter_range.clone()]
4321 .into(),
4322 )
4323 })
4324 .collect(),
4325 buffer: buffer.clone(),
4326 completions: Arc::new(RwLock::new(completions.into())),
4327 matches: Vec::new().into(),
4328 selected_item: 0,
4329 scroll_handle: UniformListScrollHandle::new(),
4330 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
4331 DebouncedDelay::new(),
4332 )),
4333 };
4334 menu.filter(query.as_deref(), cx.background_executor().clone())
4335 .await;
4336
4337 if menu.matches.is_empty() {
4338 None
4339 } else {
4340 this.update(&mut cx, |editor, cx| {
4341 let completions = menu.completions.clone();
4342 let matches = menu.matches.clone();
4343
4344 let delay_ms = EditorSettings::get_global(cx)
4345 .completion_documentation_secondary_query_debounce;
4346 let delay = Duration::from_millis(delay_ms);
4347 editor
4348 .completion_documentation_pre_resolve_debounce
4349 .fire_new(delay, cx, |editor, cx| {
4350 CompletionsMenu::pre_resolve_completion_documentation(
4351 buffer,
4352 completions,
4353 matches,
4354 editor,
4355 cx,
4356 )
4357 });
4358 })
4359 .ok();
4360 Some(menu)
4361 }
4362 } else {
4363 None
4364 };
4365
4366 this.update(&mut cx, |this, cx| {
4367 let mut context_menu = this.context_menu.write();
4368 match context_menu.as_ref() {
4369 None => {}
4370
4371 Some(ContextMenu::Completions(prev_menu)) => {
4372 if prev_menu.id > id {
4373 return;
4374 }
4375 }
4376
4377 _ => return,
4378 }
4379
4380 if this.focus_handle.is_focused(cx) && menu.is_some() {
4381 let menu = menu.unwrap();
4382 *context_menu = Some(ContextMenu::Completions(menu));
4383 drop(context_menu);
4384 this.discard_inline_completion(false, cx);
4385 cx.notify();
4386 } else if this.completion_tasks.len() <= 1 {
4387 // If there are no more completion tasks and the last menu was
4388 // empty, we should hide it. If it was already hidden, we should
4389 // also show the copilot completion when available.
4390 drop(context_menu);
4391 if this.hide_context_menu(cx).is_none() {
4392 this.update_visible_inline_completion(cx);
4393 }
4394 }
4395 })?;
4396
4397 Ok::<_, anyhow::Error>(())
4398 }
4399 .log_err()
4400 });
4401
4402 self.completion_tasks.push((id, task));
4403 }
4404
4405 pub fn confirm_completion(
4406 &mut self,
4407 action: &ConfirmCompletion,
4408 cx: &mut ViewContext<Self>,
4409 ) -> Option<Task<Result<()>>> {
4410 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4411 }
4412
4413 pub fn compose_completion(
4414 &mut self,
4415 action: &ComposeCompletion,
4416 cx: &mut ViewContext<Self>,
4417 ) -> Option<Task<Result<()>>> {
4418 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4419 }
4420
4421 fn do_completion(
4422 &mut self,
4423 item_ix: Option<usize>,
4424 intent: CompletionIntent,
4425 cx: &mut ViewContext<Self>,
4426 ) -> Option<Task<anyhow::Result<()>>> {
4427 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4428 menu
4429 } else {
4430 return None;
4431 };
4432
4433 let mut resolve_task_store = completions_menu
4434 .selected_completion_documentation_resolve_debounce
4435 .lock();
4436 let selected_completion_resolve = resolve_task_store.start_now();
4437 let menu_pre_resolve = self
4438 .completion_documentation_pre_resolve_debounce
4439 .start_now();
4440 drop(resolve_task_store);
4441
4442 Some(cx.spawn(|editor, mut cx| async move {
4443 match (selected_completion_resolve, menu_pre_resolve) {
4444 (None, None) => {}
4445 (Some(resolve), None) | (None, Some(resolve)) => resolve.await,
4446 (Some(resolve_1), Some(resolve_2)) => {
4447 futures::join!(resolve_1, resolve_2);
4448 }
4449 }
4450 if let Some(apply_edits_task) = editor.update(&mut cx, |editor, cx| {
4451 editor.apply_resolved_completion(completions_menu, item_ix, intent, cx)
4452 })? {
4453 apply_edits_task.await?;
4454 }
4455 Ok(())
4456 }))
4457 }
4458
4459 fn apply_resolved_completion(
4460 &mut self,
4461 completions_menu: CompletionsMenu,
4462 item_ix: Option<usize>,
4463 intent: CompletionIntent,
4464 cx: &mut ViewContext<'_, Editor>,
4465 ) -> Option<Task<anyhow::Result<Option<language::Transaction>>>> {
4466 use language::ToOffset as _;
4467
4468 let mat = completions_menu
4469 .matches
4470 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4471 let buffer_handle = completions_menu.buffer;
4472 let completions = completions_menu.completions.read();
4473 let completion = completions.get(mat.candidate_id)?;
4474 cx.stop_propagation();
4475
4476 let snippet;
4477 let text;
4478
4479 if completion.is_snippet() {
4480 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4481 text = snippet.as_ref().unwrap().text.clone();
4482 } else {
4483 snippet = None;
4484 text = completion.new_text.clone();
4485 };
4486 let selections = self.selections.all::<usize>(cx);
4487 let buffer = buffer_handle.read(cx);
4488 let old_range = completion.old_range.to_offset(buffer);
4489 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4490
4491 let newest_selection = self.selections.newest_anchor();
4492 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4493 return None;
4494 }
4495
4496 let lookbehind = newest_selection
4497 .start
4498 .text_anchor
4499 .to_offset(buffer)
4500 .saturating_sub(old_range.start);
4501 let lookahead = old_range
4502 .end
4503 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4504 let mut common_prefix_len = old_text
4505 .bytes()
4506 .zip(text.bytes())
4507 .take_while(|(a, b)| a == b)
4508 .count();
4509
4510 let snapshot = self.buffer.read(cx).snapshot(cx);
4511 let mut range_to_replace: Option<Range<isize>> = None;
4512 let mut ranges = Vec::new();
4513 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4514 for selection in &selections {
4515 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4516 let start = selection.start.saturating_sub(lookbehind);
4517 let end = selection.end + lookahead;
4518 if selection.id == newest_selection.id {
4519 range_to_replace = Some(
4520 ((start + common_prefix_len) as isize - selection.start as isize)
4521 ..(end as isize - selection.start as isize),
4522 );
4523 }
4524 ranges.push(start + common_prefix_len..end);
4525 } else {
4526 common_prefix_len = 0;
4527 ranges.clear();
4528 ranges.extend(selections.iter().map(|s| {
4529 if s.id == newest_selection.id {
4530 range_to_replace = Some(
4531 old_range.start.to_offset_utf16(&snapshot).0 as isize
4532 - selection.start as isize
4533 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4534 - selection.start as isize,
4535 );
4536 old_range.clone()
4537 } else {
4538 s.start..s.end
4539 }
4540 }));
4541 break;
4542 }
4543 if !self.linked_edit_ranges.is_empty() {
4544 let start_anchor = snapshot.anchor_before(selection.head());
4545 let end_anchor = snapshot.anchor_after(selection.tail());
4546 if let Some(ranges) = self
4547 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4548 {
4549 for (buffer, edits) in ranges {
4550 linked_edits.entry(buffer.clone()).or_default().extend(
4551 edits
4552 .into_iter()
4553 .map(|range| (range, text[common_prefix_len..].to_owned())),
4554 );
4555 }
4556 }
4557 }
4558 }
4559 let text = &text[common_prefix_len..];
4560
4561 cx.emit(EditorEvent::InputHandled {
4562 utf16_range_to_replace: range_to_replace,
4563 text: text.into(),
4564 });
4565
4566 self.transact(cx, |this, cx| {
4567 if let Some(mut snippet) = snippet {
4568 snippet.text = text.to_string();
4569 for tabstop in snippet.tabstops.iter_mut().flatten() {
4570 tabstop.start -= common_prefix_len as isize;
4571 tabstop.end -= common_prefix_len as isize;
4572 }
4573
4574 this.insert_snippet(&ranges, snippet, cx).log_err();
4575 } else {
4576 this.buffer.update(cx, |buffer, cx| {
4577 buffer.edit(
4578 ranges.iter().map(|range| (range.clone(), text)),
4579 this.autoindent_mode.clone(),
4580 cx,
4581 );
4582 });
4583 }
4584 for (buffer, edits) in linked_edits {
4585 buffer.update(cx, |buffer, cx| {
4586 let snapshot = buffer.snapshot();
4587 let edits = edits
4588 .into_iter()
4589 .map(|(range, text)| {
4590 use text::ToPoint as TP;
4591 let end_point = TP::to_point(&range.end, &snapshot);
4592 let start_point = TP::to_point(&range.start, &snapshot);
4593 (start_point..end_point, text)
4594 })
4595 .sorted_by_key(|(range, _)| range.start)
4596 .collect::<Vec<_>>();
4597 buffer.edit(edits, None, cx);
4598 })
4599 }
4600
4601 this.refresh_inline_completion(true, false, cx);
4602 });
4603
4604 let show_new_completions_on_confirm = completion
4605 .confirm
4606 .as_ref()
4607 .map_or(false, |confirm| confirm(intent, cx));
4608 if show_new_completions_on_confirm {
4609 self.show_completions(&ShowCompletions { trigger: None }, cx);
4610 }
4611
4612 let provider = self.completion_provider.as_ref()?;
4613 let apply_edits = provider.apply_additional_edits_for_completion(
4614 buffer_handle,
4615 completion.clone(),
4616 true,
4617 cx,
4618 );
4619
4620 let editor_settings = EditorSettings::get_global(cx);
4621 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4622 // After the code completion is finished, users often want to know what signatures are needed.
4623 // so we should automatically call signature_help
4624 self.show_signature_help(&ShowSignatureHelp, cx);
4625 }
4626 Some(apply_edits)
4627 }
4628
4629 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4630 let mut context_menu = self.context_menu.write();
4631 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4632 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4633 // Toggle if we're selecting the same one
4634 *context_menu = None;
4635 cx.notify();
4636 return;
4637 } else {
4638 // Otherwise, clear it and start a new one
4639 *context_menu = None;
4640 cx.notify();
4641 }
4642 }
4643 drop(context_menu);
4644 let snapshot = self.snapshot(cx);
4645 let deployed_from_indicator = action.deployed_from_indicator;
4646 let mut task = self.code_actions_task.take();
4647 let action = action.clone();
4648 cx.spawn(|editor, mut cx| async move {
4649 while let Some(prev_task) = task {
4650 prev_task.await.log_err();
4651 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4652 }
4653
4654 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4655 if editor.focus_handle.is_focused(cx) {
4656 let multibuffer_point = action
4657 .deployed_from_indicator
4658 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4659 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4660 let (buffer, buffer_row) = snapshot
4661 .buffer_snapshot
4662 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4663 .and_then(|(buffer_snapshot, range)| {
4664 editor
4665 .buffer
4666 .read(cx)
4667 .buffer(buffer_snapshot.remote_id())
4668 .map(|buffer| (buffer, range.start.row))
4669 })?;
4670 let (_, code_actions) = editor
4671 .available_code_actions
4672 .clone()
4673 .and_then(|(location, code_actions)| {
4674 let snapshot = location.buffer.read(cx).snapshot();
4675 let point_range = location.range.to_point(&snapshot);
4676 let point_range = point_range.start.row..=point_range.end.row;
4677 if point_range.contains(&buffer_row) {
4678 Some((location, code_actions))
4679 } else {
4680 None
4681 }
4682 })
4683 .unzip();
4684 let buffer_id = buffer.read(cx).remote_id();
4685 let tasks = editor
4686 .tasks
4687 .get(&(buffer_id, buffer_row))
4688 .map(|t| Arc::new(t.to_owned()));
4689 if tasks.is_none() && code_actions.is_none() {
4690 return None;
4691 }
4692
4693 editor.completion_tasks.clear();
4694 editor.discard_inline_completion(false, cx);
4695 let task_context =
4696 tasks
4697 .as_ref()
4698 .zip(editor.project.clone())
4699 .map(|(tasks, project)| {
4700 let position = Point::new(buffer_row, tasks.column);
4701 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4702 let location = Location {
4703 buffer: buffer.clone(),
4704 range: range_start..range_start,
4705 };
4706 // Fill in the environmental variables from the tree-sitter captures
4707 let mut captured_task_variables = TaskVariables::default();
4708 for (capture_name, value) in tasks.extra_variables.clone() {
4709 captured_task_variables.insert(
4710 task::VariableName::Custom(capture_name.into()),
4711 value.clone(),
4712 );
4713 }
4714 project.update(cx, |project, cx| {
4715 project.task_context_for_location(
4716 captured_task_variables,
4717 location,
4718 cx,
4719 )
4720 })
4721 });
4722
4723 Some(cx.spawn(|editor, mut cx| async move {
4724 let task_context = match task_context {
4725 Some(task_context) => task_context.await,
4726 None => None,
4727 };
4728 let resolved_tasks =
4729 tasks.zip(task_context).map(|(tasks, task_context)| {
4730 Arc::new(ResolvedTasks {
4731 templates: tasks
4732 .templates
4733 .iter()
4734 .filter_map(|(kind, template)| {
4735 template
4736 .resolve_task(&kind.to_id_base(), &task_context)
4737 .map(|task| (kind.clone(), task))
4738 })
4739 .collect(),
4740 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4741 multibuffer_point.row,
4742 tasks.column,
4743 )),
4744 })
4745 });
4746 let spawn_straight_away = resolved_tasks
4747 .as_ref()
4748 .map_or(false, |tasks| tasks.templates.len() == 1)
4749 && code_actions
4750 .as_ref()
4751 .map_or(true, |actions| actions.is_empty());
4752 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4753 *editor.context_menu.write() =
4754 Some(ContextMenu::CodeActions(CodeActionsMenu {
4755 buffer,
4756 actions: CodeActionContents {
4757 tasks: resolved_tasks,
4758 actions: code_actions,
4759 },
4760 selected_item: Default::default(),
4761 scroll_handle: UniformListScrollHandle::default(),
4762 deployed_from_indicator,
4763 }));
4764 if spawn_straight_away {
4765 if let Some(task) = editor.confirm_code_action(
4766 &ConfirmCodeAction { item_ix: Some(0) },
4767 cx,
4768 ) {
4769 cx.notify();
4770 return task;
4771 }
4772 }
4773 cx.notify();
4774 Task::ready(Ok(()))
4775 }) {
4776 task.await
4777 } else {
4778 Ok(())
4779 }
4780 }))
4781 } else {
4782 Some(Task::ready(Ok(())))
4783 }
4784 })?;
4785 if let Some(task) = spawned_test_task {
4786 task.await?;
4787 }
4788
4789 Ok::<_, anyhow::Error>(())
4790 })
4791 .detach_and_log_err(cx);
4792 }
4793
4794 pub fn confirm_code_action(
4795 &mut self,
4796 action: &ConfirmCodeAction,
4797 cx: &mut ViewContext<Self>,
4798 ) -> Option<Task<Result<()>>> {
4799 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4800 menu
4801 } else {
4802 return None;
4803 };
4804 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4805 let action = actions_menu.actions.get(action_ix)?;
4806 let title = action.label();
4807 let buffer = actions_menu.buffer;
4808 let workspace = self.workspace()?;
4809
4810 match action {
4811 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4812 workspace.update(cx, |workspace, cx| {
4813 workspace::tasks::schedule_resolved_task(
4814 workspace,
4815 task_source_kind,
4816 resolved_task,
4817 false,
4818 cx,
4819 );
4820
4821 Some(Task::ready(Ok(())))
4822 })
4823 }
4824 CodeActionsItem::CodeAction {
4825 excerpt_id,
4826 action,
4827 provider,
4828 } => {
4829 let apply_code_action =
4830 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4831 let workspace = workspace.downgrade();
4832 Some(cx.spawn(|editor, cx| async move {
4833 let project_transaction = apply_code_action.await?;
4834 Self::open_project_transaction(
4835 &editor,
4836 workspace,
4837 project_transaction,
4838 title,
4839 cx,
4840 )
4841 .await
4842 }))
4843 }
4844 }
4845 }
4846
4847 pub async fn open_project_transaction(
4848 this: &WeakView<Editor>,
4849 workspace: WeakView<Workspace>,
4850 transaction: ProjectTransaction,
4851 title: String,
4852 mut cx: AsyncWindowContext,
4853 ) -> Result<()> {
4854 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4855 cx.update(|cx| {
4856 entries.sort_unstable_by_key(|(buffer, _)| {
4857 buffer.read(cx).file().map(|f| f.path().clone())
4858 });
4859 })?;
4860
4861 // If the project transaction's edits are all contained within this editor, then
4862 // avoid opening a new editor to display them.
4863
4864 if let Some((buffer, transaction)) = entries.first() {
4865 if entries.len() == 1 {
4866 let excerpt = this.update(&mut cx, |editor, cx| {
4867 editor
4868 .buffer()
4869 .read(cx)
4870 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4871 })?;
4872 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4873 if excerpted_buffer == *buffer {
4874 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4875 let excerpt_range = excerpt_range.to_offset(buffer);
4876 buffer
4877 .edited_ranges_for_transaction::<usize>(transaction)
4878 .all(|range| {
4879 excerpt_range.start <= range.start
4880 && excerpt_range.end >= range.end
4881 })
4882 })?;
4883
4884 if all_edits_within_excerpt {
4885 return Ok(());
4886 }
4887 }
4888 }
4889 }
4890 } else {
4891 return Ok(());
4892 }
4893
4894 let mut ranges_to_highlight = Vec::new();
4895 let excerpt_buffer = cx.new_model(|cx| {
4896 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4897 for (buffer_handle, transaction) in &entries {
4898 let buffer = buffer_handle.read(cx);
4899 ranges_to_highlight.extend(
4900 multibuffer.push_excerpts_with_context_lines(
4901 buffer_handle.clone(),
4902 buffer
4903 .edited_ranges_for_transaction::<usize>(transaction)
4904 .collect(),
4905 DEFAULT_MULTIBUFFER_CONTEXT,
4906 cx,
4907 ),
4908 );
4909 }
4910 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4911 multibuffer
4912 })?;
4913
4914 workspace.update(&mut cx, |workspace, cx| {
4915 let project = workspace.project().clone();
4916 let editor =
4917 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4918 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4919 editor.update(cx, |editor, cx| {
4920 editor.highlight_background::<Self>(
4921 &ranges_to_highlight,
4922 |theme| theme.editor_highlighted_line_background,
4923 cx,
4924 );
4925 });
4926 })?;
4927
4928 Ok(())
4929 }
4930
4931 pub fn push_code_action_provider(
4932 &mut self,
4933 provider: Arc<dyn CodeActionProvider>,
4934 cx: &mut ViewContext<Self>,
4935 ) {
4936 self.code_action_providers.push(provider);
4937 self.refresh_code_actions(cx);
4938 }
4939
4940 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4941 let buffer = self.buffer.read(cx);
4942 let newest_selection = self.selections.newest_anchor().clone();
4943 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4944 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4945 if start_buffer != end_buffer {
4946 return None;
4947 }
4948
4949 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4950 cx.background_executor()
4951 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4952 .await;
4953
4954 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4955 let providers = this.code_action_providers.clone();
4956 let tasks = this
4957 .code_action_providers
4958 .iter()
4959 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4960 .collect::<Vec<_>>();
4961 (providers, tasks)
4962 })?;
4963
4964 let mut actions = Vec::new();
4965 for (provider, provider_actions) in
4966 providers.into_iter().zip(future::join_all(tasks).await)
4967 {
4968 if let Some(provider_actions) = provider_actions.log_err() {
4969 actions.extend(provider_actions.into_iter().map(|action| {
4970 AvailableCodeAction {
4971 excerpt_id: newest_selection.start.excerpt_id,
4972 action,
4973 provider: provider.clone(),
4974 }
4975 }));
4976 }
4977 }
4978
4979 this.update(&mut cx, |this, cx| {
4980 this.available_code_actions = if actions.is_empty() {
4981 None
4982 } else {
4983 Some((
4984 Location {
4985 buffer: start_buffer,
4986 range: start..end,
4987 },
4988 actions.into(),
4989 ))
4990 };
4991 cx.notify();
4992 })
4993 }));
4994 None
4995 }
4996
4997 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4998 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4999 self.show_git_blame_inline = false;
5000
5001 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
5002 cx.background_executor().timer(delay).await;
5003
5004 this.update(&mut cx, |this, cx| {
5005 this.show_git_blame_inline = true;
5006 cx.notify();
5007 })
5008 .log_err();
5009 }));
5010 }
5011 }
5012
5013 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5014 if self.pending_rename.is_some() {
5015 return None;
5016 }
5017
5018 let project = self.project.clone()?;
5019 let buffer = self.buffer.read(cx);
5020 let newest_selection = self.selections.newest_anchor().clone();
5021 let cursor_position = newest_selection.head();
5022 let (cursor_buffer, cursor_buffer_position) =
5023 buffer.text_anchor_for_position(cursor_position, cx)?;
5024 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
5025 if cursor_buffer != tail_buffer {
5026 return None;
5027 }
5028
5029 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5030 cx.background_executor()
5031 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5032 .await;
5033
5034 let highlights = if let Some(highlights) = project
5035 .update(&mut cx, |project, cx| {
5036 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5037 })
5038 .log_err()
5039 {
5040 highlights.await.log_err()
5041 } else {
5042 None
5043 };
5044
5045 if let Some(highlights) = highlights {
5046 this.update(&mut cx, |this, cx| {
5047 if this.pending_rename.is_some() {
5048 return;
5049 }
5050
5051 let buffer_id = cursor_position.buffer_id;
5052 let buffer = this.buffer.read(cx);
5053 if !buffer
5054 .text_anchor_for_position(cursor_position, cx)
5055 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5056 {
5057 return;
5058 }
5059
5060 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5061 let mut write_ranges = Vec::new();
5062 let mut read_ranges = Vec::new();
5063 for highlight in highlights {
5064 for (excerpt_id, excerpt_range) in
5065 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5066 {
5067 let start = highlight
5068 .range
5069 .start
5070 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5071 let end = highlight
5072 .range
5073 .end
5074 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5075 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5076 continue;
5077 }
5078
5079 let range = Anchor {
5080 buffer_id,
5081 excerpt_id,
5082 text_anchor: start,
5083 }..Anchor {
5084 buffer_id,
5085 excerpt_id,
5086 text_anchor: end,
5087 };
5088 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5089 write_ranges.push(range);
5090 } else {
5091 read_ranges.push(range);
5092 }
5093 }
5094 }
5095
5096 this.highlight_background::<DocumentHighlightRead>(
5097 &read_ranges,
5098 |theme| theme.editor_document_highlight_read_background,
5099 cx,
5100 );
5101 this.highlight_background::<DocumentHighlightWrite>(
5102 &write_ranges,
5103 |theme| theme.editor_document_highlight_write_background,
5104 cx,
5105 );
5106 cx.notify();
5107 })
5108 .log_err();
5109 }
5110 }));
5111 None
5112 }
5113
5114 pub fn refresh_inline_completion(
5115 &mut self,
5116 debounce: bool,
5117 user_requested: bool,
5118 cx: &mut ViewContext<Self>,
5119 ) -> Option<()> {
5120 let provider = self.inline_completion_provider()?;
5121 let cursor = self.selections.newest_anchor().head();
5122 let (buffer, cursor_buffer_position) =
5123 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5124
5125 if !user_requested
5126 && (!self.enable_inline_completions
5127 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5128 {
5129 self.discard_inline_completion(false, cx);
5130 return None;
5131 }
5132
5133 self.update_visible_inline_completion(cx);
5134 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5135 Some(())
5136 }
5137
5138 fn cycle_inline_completion(
5139 &mut self,
5140 direction: Direction,
5141 cx: &mut ViewContext<Self>,
5142 ) -> Option<()> {
5143 let provider = self.inline_completion_provider()?;
5144 let cursor = self.selections.newest_anchor().head();
5145 let (buffer, cursor_buffer_position) =
5146 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5147 if !self.enable_inline_completions
5148 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5149 {
5150 return None;
5151 }
5152
5153 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5154 self.update_visible_inline_completion(cx);
5155
5156 Some(())
5157 }
5158
5159 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5160 if !self.has_active_inline_completion(cx) {
5161 self.refresh_inline_completion(false, true, cx);
5162 return;
5163 }
5164
5165 self.update_visible_inline_completion(cx);
5166 }
5167
5168 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5169 self.show_cursor_names(cx);
5170 }
5171
5172 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5173 self.show_cursor_names = true;
5174 cx.notify();
5175 cx.spawn(|this, mut cx| async move {
5176 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5177 this.update(&mut cx, |this, cx| {
5178 this.show_cursor_names = false;
5179 cx.notify()
5180 })
5181 .ok()
5182 })
5183 .detach();
5184 }
5185
5186 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5187 if self.has_active_inline_completion(cx) {
5188 self.cycle_inline_completion(Direction::Next, cx);
5189 } else {
5190 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5191 if is_copilot_disabled {
5192 cx.propagate();
5193 }
5194 }
5195 }
5196
5197 pub fn previous_inline_completion(
5198 &mut self,
5199 _: &PreviousInlineCompletion,
5200 cx: &mut ViewContext<Self>,
5201 ) {
5202 if self.has_active_inline_completion(cx) {
5203 self.cycle_inline_completion(Direction::Prev, cx);
5204 } else {
5205 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5206 if is_copilot_disabled {
5207 cx.propagate();
5208 }
5209 }
5210 }
5211
5212 pub fn accept_inline_completion(
5213 &mut self,
5214 _: &AcceptInlineCompletion,
5215 cx: &mut ViewContext<Self>,
5216 ) {
5217 let Some(completion) = self.take_active_inline_completion(cx) else {
5218 return;
5219 };
5220 if let Some(provider) = self.inline_completion_provider() {
5221 provider.accept(cx);
5222 }
5223
5224 cx.emit(EditorEvent::InputHandled {
5225 utf16_range_to_replace: None,
5226 text: completion.text.to_string().into(),
5227 });
5228
5229 if let Some(range) = completion.delete_range {
5230 self.change_selections(None, cx, |s| s.select_ranges([range]))
5231 }
5232 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5233 self.refresh_inline_completion(true, true, cx);
5234 cx.notify();
5235 }
5236
5237 pub fn accept_partial_inline_completion(
5238 &mut self,
5239 _: &AcceptPartialInlineCompletion,
5240 cx: &mut ViewContext<Self>,
5241 ) {
5242 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5243 if let Some(completion) = self.take_active_inline_completion(cx) {
5244 let mut partial_completion = completion
5245 .text
5246 .chars()
5247 .by_ref()
5248 .take_while(|c| c.is_alphabetic())
5249 .collect::<String>();
5250 if partial_completion.is_empty() {
5251 partial_completion = completion
5252 .text
5253 .chars()
5254 .by_ref()
5255 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5256 .collect::<String>();
5257 }
5258
5259 cx.emit(EditorEvent::InputHandled {
5260 utf16_range_to_replace: None,
5261 text: partial_completion.clone().into(),
5262 });
5263
5264 if let Some(range) = completion.delete_range {
5265 self.change_selections(None, cx, |s| s.select_ranges([range]))
5266 }
5267 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5268
5269 self.refresh_inline_completion(true, true, cx);
5270 cx.notify();
5271 }
5272 }
5273 }
5274
5275 fn discard_inline_completion(
5276 &mut self,
5277 should_report_inline_completion_event: bool,
5278 cx: &mut ViewContext<Self>,
5279 ) -> bool {
5280 if let Some(provider) = self.inline_completion_provider() {
5281 provider.discard(should_report_inline_completion_event, cx);
5282 }
5283
5284 self.take_active_inline_completion(cx).is_some()
5285 }
5286
5287 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5288 if let Some(completion) = self.active_inline_completion.as_ref() {
5289 let buffer = self.buffer.read(cx).read(cx);
5290 completion.position.is_valid(&buffer)
5291 } else {
5292 false
5293 }
5294 }
5295
5296 fn take_active_inline_completion(
5297 &mut self,
5298 cx: &mut ViewContext<Self>,
5299 ) -> Option<CompletionState> {
5300 let completion = self.active_inline_completion.take()?;
5301 let render_inlay_ids = completion.render_inlay_ids.clone();
5302 self.display_map.update(cx, |map, cx| {
5303 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5304 });
5305 let buffer = self.buffer.read(cx).read(cx);
5306
5307 if completion.position.is_valid(&buffer) {
5308 Some(completion)
5309 } else {
5310 None
5311 }
5312 }
5313
5314 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5315 let selection = self.selections.newest_anchor();
5316 let cursor = selection.head();
5317
5318 let excerpt_id = cursor.excerpt_id;
5319
5320 if self.context_menu.read().is_none()
5321 && self.completion_tasks.is_empty()
5322 && selection.start == selection.end
5323 {
5324 if let Some(provider) = self.inline_completion_provider() {
5325 if let Some((buffer, cursor_buffer_position)) =
5326 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5327 {
5328 if let Some(proposal) =
5329 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5330 {
5331 let mut to_remove = Vec::new();
5332 if let Some(completion) = self.active_inline_completion.take() {
5333 to_remove.extend(completion.render_inlay_ids.iter());
5334 }
5335
5336 let to_add = proposal
5337 .inlays
5338 .iter()
5339 .filter_map(|inlay| {
5340 let snapshot = self.buffer.read(cx).snapshot(cx);
5341 let id = post_inc(&mut self.next_inlay_id);
5342 match inlay {
5343 InlayProposal::Hint(position, hint) => {
5344 let position =
5345 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5346 Some(Inlay::hint(id, position, hint))
5347 }
5348 InlayProposal::Suggestion(position, text) => {
5349 let position =
5350 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5351 Some(Inlay::suggestion(id, position, text.clone()))
5352 }
5353 }
5354 })
5355 .collect_vec();
5356
5357 self.active_inline_completion = Some(CompletionState {
5358 position: cursor,
5359 text: proposal.text,
5360 delete_range: proposal.delete_range.and_then(|range| {
5361 let snapshot = self.buffer.read(cx).snapshot(cx);
5362 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5363 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5364 Some(start?..end?)
5365 }),
5366 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5367 });
5368
5369 self.display_map
5370 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5371
5372 cx.notify();
5373 return;
5374 }
5375 }
5376 }
5377 }
5378
5379 self.discard_inline_completion(false, cx);
5380 }
5381
5382 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5383 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5384 }
5385
5386 fn render_code_actions_indicator(
5387 &self,
5388 _style: &EditorStyle,
5389 row: DisplayRow,
5390 is_active: bool,
5391 cx: &mut ViewContext<Self>,
5392 ) -> Option<IconButton> {
5393 if self.available_code_actions.is_some() {
5394 Some(
5395 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5396 .shape(ui::IconButtonShape::Square)
5397 .icon_size(IconSize::XSmall)
5398 .icon_color(Color::Muted)
5399 .selected(is_active)
5400 .tooltip({
5401 let focus_handle = self.focus_handle.clone();
5402 move |cx| {
5403 Tooltip::for_action_in(
5404 "Toggle Code Actions",
5405 &ToggleCodeActions {
5406 deployed_from_indicator: None,
5407 },
5408 &focus_handle,
5409 cx,
5410 )
5411 }
5412 })
5413 .on_click(cx.listener(move |editor, _e, cx| {
5414 editor.focus(cx);
5415 editor.toggle_code_actions(
5416 &ToggleCodeActions {
5417 deployed_from_indicator: Some(row),
5418 },
5419 cx,
5420 );
5421 })),
5422 )
5423 } else {
5424 None
5425 }
5426 }
5427
5428 fn clear_tasks(&mut self) {
5429 self.tasks.clear()
5430 }
5431
5432 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5433 if self.tasks.insert(key, value).is_some() {
5434 // This case should hopefully be rare, but just in case...
5435 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5436 }
5437 }
5438
5439 fn render_run_indicator(
5440 &self,
5441 _style: &EditorStyle,
5442 is_active: bool,
5443 row: DisplayRow,
5444 cx: &mut ViewContext<Self>,
5445 ) -> IconButton {
5446 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5447 .shape(ui::IconButtonShape::Square)
5448 .icon_size(IconSize::XSmall)
5449 .icon_color(Color::Muted)
5450 .selected(is_active)
5451 .on_click(cx.listener(move |editor, _e, cx| {
5452 editor.focus(cx);
5453 editor.toggle_code_actions(
5454 &ToggleCodeActions {
5455 deployed_from_indicator: Some(row),
5456 },
5457 cx,
5458 );
5459 }))
5460 }
5461
5462 pub fn context_menu_visible(&self) -> bool {
5463 self.context_menu
5464 .read()
5465 .as_ref()
5466 .map_or(false, |menu| menu.visible())
5467 }
5468
5469 fn render_context_menu(
5470 &self,
5471 cursor_position: DisplayPoint,
5472 style: &EditorStyle,
5473 max_height: Pixels,
5474 cx: &mut ViewContext<Editor>,
5475 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5476 self.context_menu.read().as_ref().map(|menu| {
5477 menu.render(
5478 cursor_position,
5479 style,
5480 max_height,
5481 self.workspace.as_ref().map(|(w, _)| w.clone()),
5482 cx,
5483 )
5484 })
5485 }
5486
5487 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5488 cx.notify();
5489 self.completion_tasks.clear();
5490 let context_menu = self.context_menu.write().take();
5491 if context_menu.is_some() {
5492 self.update_visible_inline_completion(cx);
5493 }
5494 context_menu
5495 }
5496
5497 pub fn insert_snippet(
5498 &mut self,
5499 insertion_ranges: &[Range<usize>],
5500 snippet: Snippet,
5501 cx: &mut ViewContext<Self>,
5502 ) -> Result<()> {
5503 struct Tabstop<T> {
5504 is_end_tabstop: bool,
5505 ranges: Vec<Range<T>>,
5506 }
5507
5508 let tabstops = self.buffer.update(cx, |buffer, cx| {
5509 let snippet_text: Arc<str> = snippet.text.clone().into();
5510 buffer.edit(
5511 insertion_ranges
5512 .iter()
5513 .cloned()
5514 .map(|range| (range, snippet_text.clone())),
5515 Some(AutoindentMode::EachLine),
5516 cx,
5517 );
5518
5519 let snapshot = &*buffer.read(cx);
5520 let snippet = &snippet;
5521 snippet
5522 .tabstops
5523 .iter()
5524 .map(|tabstop| {
5525 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5526 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5527 });
5528 let mut tabstop_ranges = tabstop
5529 .iter()
5530 .flat_map(|tabstop_range| {
5531 let mut delta = 0_isize;
5532 insertion_ranges.iter().map(move |insertion_range| {
5533 let insertion_start = insertion_range.start as isize + delta;
5534 delta +=
5535 snippet.text.len() as isize - insertion_range.len() as isize;
5536
5537 let start = ((insertion_start + tabstop_range.start) as usize)
5538 .min(snapshot.len());
5539 let end = ((insertion_start + tabstop_range.end) as usize)
5540 .min(snapshot.len());
5541 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5542 })
5543 })
5544 .collect::<Vec<_>>();
5545 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5546
5547 Tabstop {
5548 is_end_tabstop,
5549 ranges: tabstop_ranges,
5550 }
5551 })
5552 .collect::<Vec<_>>()
5553 });
5554 if let Some(tabstop) = tabstops.first() {
5555 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5556 s.select_ranges(tabstop.ranges.iter().cloned());
5557 });
5558
5559 // If we're already at the last tabstop and it's at the end of the snippet,
5560 // we're done, we don't need to keep the state around.
5561 if !tabstop.is_end_tabstop {
5562 let ranges = tabstops
5563 .into_iter()
5564 .map(|tabstop| tabstop.ranges)
5565 .collect::<Vec<_>>();
5566 self.snippet_stack.push(SnippetState {
5567 active_index: 0,
5568 ranges,
5569 });
5570 }
5571
5572 // Check whether the just-entered snippet ends with an auto-closable bracket.
5573 if self.autoclose_regions.is_empty() {
5574 let snapshot = self.buffer.read(cx).snapshot(cx);
5575 for selection in &mut self.selections.all::<Point>(cx) {
5576 let selection_head = selection.head();
5577 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5578 continue;
5579 };
5580
5581 let mut bracket_pair = None;
5582 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5583 let prev_chars = snapshot
5584 .reversed_chars_at(selection_head)
5585 .collect::<String>();
5586 for (pair, enabled) in scope.brackets() {
5587 if enabled
5588 && pair.close
5589 && prev_chars.starts_with(pair.start.as_str())
5590 && next_chars.starts_with(pair.end.as_str())
5591 {
5592 bracket_pair = Some(pair.clone());
5593 break;
5594 }
5595 }
5596 if let Some(pair) = bracket_pair {
5597 let start = snapshot.anchor_after(selection_head);
5598 let end = snapshot.anchor_after(selection_head);
5599 self.autoclose_regions.push(AutocloseRegion {
5600 selection_id: selection.id,
5601 range: start..end,
5602 pair,
5603 });
5604 }
5605 }
5606 }
5607 }
5608 Ok(())
5609 }
5610
5611 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5612 self.move_to_snippet_tabstop(Bias::Right, cx)
5613 }
5614
5615 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5616 self.move_to_snippet_tabstop(Bias::Left, cx)
5617 }
5618
5619 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5620 if let Some(mut snippet) = self.snippet_stack.pop() {
5621 match bias {
5622 Bias::Left => {
5623 if snippet.active_index > 0 {
5624 snippet.active_index -= 1;
5625 } else {
5626 self.snippet_stack.push(snippet);
5627 return false;
5628 }
5629 }
5630 Bias::Right => {
5631 if snippet.active_index + 1 < snippet.ranges.len() {
5632 snippet.active_index += 1;
5633 } else {
5634 self.snippet_stack.push(snippet);
5635 return false;
5636 }
5637 }
5638 }
5639 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5640 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5641 s.select_anchor_ranges(current_ranges.iter().cloned())
5642 });
5643 // If snippet state is not at the last tabstop, push it back on the stack
5644 if snippet.active_index + 1 < snippet.ranges.len() {
5645 self.snippet_stack.push(snippet);
5646 }
5647 return true;
5648 }
5649 }
5650
5651 false
5652 }
5653
5654 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5655 self.transact(cx, |this, cx| {
5656 this.select_all(&SelectAll, cx);
5657 this.insert("", cx);
5658 });
5659 }
5660
5661 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5662 self.transact(cx, |this, cx| {
5663 this.select_autoclose_pair(cx);
5664 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5665 if !this.linked_edit_ranges.is_empty() {
5666 let selections = this.selections.all::<MultiBufferPoint>(cx);
5667 let snapshot = this.buffer.read(cx).snapshot(cx);
5668
5669 for selection in selections.iter() {
5670 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5671 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5672 if selection_start.buffer_id != selection_end.buffer_id {
5673 continue;
5674 }
5675 if let Some(ranges) =
5676 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5677 {
5678 for (buffer, entries) in ranges {
5679 linked_ranges.entry(buffer).or_default().extend(entries);
5680 }
5681 }
5682 }
5683 }
5684
5685 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5686 if !this.selections.line_mode {
5687 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5688 for selection in &mut selections {
5689 if selection.is_empty() {
5690 let old_head = selection.head();
5691 let mut new_head =
5692 movement::left(&display_map, old_head.to_display_point(&display_map))
5693 .to_point(&display_map);
5694 if let Some((buffer, line_buffer_range)) = display_map
5695 .buffer_snapshot
5696 .buffer_line_for_row(MultiBufferRow(old_head.row))
5697 {
5698 let indent_size =
5699 buffer.indent_size_for_line(line_buffer_range.start.row);
5700 let indent_len = match indent_size.kind {
5701 IndentKind::Space => {
5702 buffer.settings_at(line_buffer_range.start, cx).tab_size
5703 }
5704 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5705 };
5706 if old_head.column <= indent_size.len && old_head.column > 0 {
5707 let indent_len = indent_len.get();
5708 new_head = cmp::min(
5709 new_head,
5710 MultiBufferPoint::new(
5711 old_head.row,
5712 ((old_head.column - 1) / indent_len) * indent_len,
5713 ),
5714 );
5715 }
5716 }
5717
5718 selection.set_head(new_head, SelectionGoal::None);
5719 }
5720 }
5721 }
5722
5723 this.signature_help_state.set_backspace_pressed(true);
5724 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5725 this.insert("", cx);
5726 let empty_str: Arc<str> = Arc::from("");
5727 for (buffer, edits) in linked_ranges {
5728 let snapshot = buffer.read(cx).snapshot();
5729 use text::ToPoint as TP;
5730
5731 let edits = edits
5732 .into_iter()
5733 .map(|range| {
5734 let end_point = TP::to_point(&range.end, &snapshot);
5735 let mut start_point = TP::to_point(&range.start, &snapshot);
5736
5737 if end_point == start_point {
5738 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5739 .saturating_sub(1);
5740 start_point = TP::to_point(&offset, &snapshot);
5741 };
5742
5743 (start_point..end_point, empty_str.clone())
5744 })
5745 .sorted_by_key(|(range, _)| range.start)
5746 .collect::<Vec<_>>();
5747 buffer.update(cx, |this, cx| {
5748 this.edit(edits, None, cx);
5749 })
5750 }
5751 this.refresh_inline_completion(true, false, cx);
5752 linked_editing_ranges::refresh_linked_ranges(this, cx);
5753 });
5754 }
5755
5756 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5757 self.transact(cx, |this, cx| {
5758 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5759 let line_mode = s.line_mode;
5760 s.move_with(|map, selection| {
5761 if selection.is_empty() && !line_mode {
5762 let cursor = movement::right(map, selection.head());
5763 selection.end = cursor;
5764 selection.reversed = true;
5765 selection.goal = SelectionGoal::None;
5766 }
5767 })
5768 });
5769 this.insert("", cx);
5770 this.refresh_inline_completion(true, false, cx);
5771 });
5772 }
5773
5774 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5775 if self.move_to_prev_snippet_tabstop(cx) {
5776 return;
5777 }
5778
5779 self.outdent(&Outdent, cx);
5780 }
5781
5782 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5783 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5784 return;
5785 }
5786
5787 let mut selections = self.selections.all_adjusted(cx);
5788 let buffer = self.buffer.read(cx);
5789 let snapshot = buffer.snapshot(cx);
5790 let rows_iter = selections.iter().map(|s| s.head().row);
5791 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5792
5793 let mut edits = Vec::new();
5794 let mut prev_edited_row = 0;
5795 let mut row_delta = 0;
5796 for selection in &mut selections {
5797 if selection.start.row != prev_edited_row {
5798 row_delta = 0;
5799 }
5800 prev_edited_row = selection.end.row;
5801
5802 // If the selection is non-empty, then increase the indentation of the selected lines.
5803 if !selection.is_empty() {
5804 row_delta =
5805 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5806 continue;
5807 }
5808
5809 // If the selection is empty and the cursor is in the leading whitespace before the
5810 // suggested indentation, then auto-indent the line.
5811 let cursor = selection.head();
5812 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5813 if let Some(suggested_indent) =
5814 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5815 {
5816 if cursor.column < suggested_indent.len
5817 && cursor.column <= current_indent.len
5818 && current_indent.len <= suggested_indent.len
5819 {
5820 selection.start = Point::new(cursor.row, suggested_indent.len);
5821 selection.end = selection.start;
5822 if row_delta == 0 {
5823 edits.extend(Buffer::edit_for_indent_size_adjustment(
5824 cursor.row,
5825 current_indent,
5826 suggested_indent,
5827 ));
5828 row_delta = suggested_indent.len - current_indent.len;
5829 }
5830 continue;
5831 }
5832 }
5833
5834 // Otherwise, insert a hard or soft tab.
5835 let settings = buffer.settings_at(cursor, cx);
5836 let tab_size = if settings.hard_tabs {
5837 IndentSize::tab()
5838 } else {
5839 let tab_size = settings.tab_size.get();
5840 let char_column = snapshot
5841 .text_for_range(Point::new(cursor.row, 0)..cursor)
5842 .flat_map(str::chars)
5843 .count()
5844 + row_delta as usize;
5845 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5846 IndentSize::spaces(chars_to_next_tab_stop)
5847 };
5848 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5849 selection.end = selection.start;
5850 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5851 row_delta += tab_size.len;
5852 }
5853
5854 self.transact(cx, |this, cx| {
5855 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5856 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5857 this.refresh_inline_completion(true, false, cx);
5858 });
5859 }
5860
5861 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5862 if self.read_only(cx) {
5863 return;
5864 }
5865 let mut selections = self.selections.all::<Point>(cx);
5866 let mut prev_edited_row = 0;
5867 let mut row_delta = 0;
5868 let mut edits = Vec::new();
5869 let buffer = self.buffer.read(cx);
5870 let snapshot = buffer.snapshot(cx);
5871 for selection in &mut selections {
5872 if selection.start.row != prev_edited_row {
5873 row_delta = 0;
5874 }
5875 prev_edited_row = selection.end.row;
5876
5877 row_delta =
5878 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5879 }
5880
5881 self.transact(cx, |this, cx| {
5882 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5883 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5884 });
5885 }
5886
5887 fn indent_selection(
5888 buffer: &MultiBuffer,
5889 snapshot: &MultiBufferSnapshot,
5890 selection: &mut Selection<Point>,
5891 edits: &mut Vec<(Range<Point>, String)>,
5892 delta_for_start_row: u32,
5893 cx: &AppContext,
5894 ) -> u32 {
5895 let settings = buffer.settings_at(selection.start, cx);
5896 let tab_size = settings.tab_size.get();
5897 let indent_kind = if settings.hard_tabs {
5898 IndentKind::Tab
5899 } else {
5900 IndentKind::Space
5901 };
5902 let mut start_row = selection.start.row;
5903 let mut end_row = selection.end.row + 1;
5904
5905 // If a selection ends at the beginning of a line, don't indent
5906 // that last line.
5907 if selection.end.column == 0 && selection.end.row > selection.start.row {
5908 end_row -= 1;
5909 }
5910
5911 // Avoid re-indenting a row that has already been indented by a
5912 // previous selection, but still update this selection's column
5913 // to reflect that indentation.
5914 if delta_for_start_row > 0 {
5915 start_row += 1;
5916 selection.start.column += delta_for_start_row;
5917 if selection.end.row == selection.start.row {
5918 selection.end.column += delta_for_start_row;
5919 }
5920 }
5921
5922 let mut delta_for_end_row = 0;
5923 let has_multiple_rows = start_row + 1 != end_row;
5924 for row in start_row..end_row {
5925 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5926 let indent_delta = match (current_indent.kind, indent_kind) {
5927 (IndentKind::Space, IndentKind::Space) => {
5928 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5929 IndentSize::spaces(columns_to_next_tab_stop)
5930 }
5931 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5932 (_, IndentKind::Tab) => IndentSize::tab(),
5933 };
5934
5935 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5936 0
5937 } else {
5938 selection.start.column
5939 };
5940 let row_start = Point::new(row, start);
5941 edits.push((
5942 row_start..row_start,
5943 indent_delta.chars().collect::<String>(),
5944 ));
5945
5946 // Update this selection's endpoints to reflect the indentation.
5947 if row == selection.start.row {
5948 selection.start.column += indent_delta.len;
5949 }
5950 if row == selection.end.row {
5951 selection.end.column += indent_delta.len;
5952 delta_for_end_row = indent_delta.len;
5953 }
5954 }
5955
5956 if selection.start.row == selection.end.row {
5957 delta_for_start_row + delta_for_end_row
5958 } else {
5959 delta_for_end_row
5960 }
5961 }
5962
5963 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5964 if self.read_only(cx) {
5965 return;
5966 }
5967 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5968 let selections = self.selections.all::<Point>(cx);
5969 let mut deletion_ranges = Vec::new();
5970 let mut last_outdent = None;
5971 {
5972 let buffer = self.buffer.read(cx);
5973 let snapshot = buffer.snapshot(cx);
5974 for selection in &selections {
5975 let settings = buffer.settings_at(selection.start, cx);
5976 let tab_size = settings.tab_size.get();
5977 let mut rows = selection.spanned_rows(false, &display_map);
5978
5979 // Avoid re-outdenting a row that has already been outdented by a
5980 // previous selection.
5981 if let Some(last_row) = last_outdent {
5982 if last_row == rows.start {
5983 rows.start = rows.start.next_row();
5984 }
5985 }
5986 let has_multiple_rows = rows.len() > 1;
5987 for row in rows.iter_rows() {
5988 let indent_size = snapshot.indent_size_for_line(row);
5989 if indent_size.len > 0 {
5990 let deletion_len = match indent_size.kind {
5991 IndentKind::Space => {
5992 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5993 if columns_to_prev_tab_stop == 0 {
5994 tab_size
5995 } else {
5996 columns_to_prev_tab_stop
5997 }
5998 }
5999 IndentKind::Tab => 1,
6000 };
6001 let start = if has_multiple_rows
6002 || deletion_len > selection.start.column
6003 || indent_size.len < selection.start.column
6004 {
6005 0
6006 } else {
6007 selection.start.column - deletion_len
6008 };
6009 deletion_ranges.push(
6010 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6011 );
6012 last_outdent = Some(row);
6013 }
6014 }
6015 }
6016 }
6017
6018 self.transact(cx, |this, cx| {
6019 this.buffer.update(cx, |buffer, cx| {
6020 let empty_str: Arc<str> = Arc::default();
6021 buffer.edit(
6022 deletion_ranges
6023 .into_iter()
6024 .map(|range| (range, empty_str.clone())),
6025 None,
6026 cx,
6027 );
6028 });
6029 let selections = this.selections.all::<usize>(cx);
6030 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6031 });
6032 }
6033
6034 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
6035 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6036 let selections = self.selections.all::<Point>(cx);
6037
6038 let mut new_cursors = Vec::new();
6039 let mut edit_ranges = Vec::new();
6040 let mut selections = selections.iter().peekable();
6041 while let Some(selection) = selections.next() {
6042 let mut rows = selection.spanned_rows(false, &display_map);
6043 let goal_display_column = selection.head().to_display_point(&display_map).column();
6044
6045 // Accumulate contiguous regions of rows that we want to delete.
6046 while let Some(next_selection) = selections.peek() {
6047 let next_rows = next_selection.spanned_rows(false, &display_map);
6048 if next_rows.start <= rows.end {
6049 rows.end = next_rows.end;
6050 selections.next().unwrap();
6051 } else {
6052 break;
6053 }
6054 }
6055
6056 let buffer = &display_map.buffer_snapshot;
6057 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6058 let edit_end;
6059 let cursor_buffer_row;
6060 if buffer.max_point().row >= rows.end.0 {
6061 // If there's a line after the range, delete the \n from the end of the row range
6062 // and position the cursor on the next line.
6063 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6064 cursor_buffer_row = rows.end;
6065 } else {
6066 // If there isn't a line after the range, delete the \n from the line before the
6067 // start of the row range and position the cursor there.
6068 edit_start = edit_start.saturating_sub(1);
6069 edit_end = buffer.len();
6070 cursor_buffer_row = rows.start.previous_row();
6071 }
6072
6073 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6074 *cursor.column_mut() =
6075 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6076
6077 new_cursors.push((
6078 selection.id,
6079 buffer.anchor_after(cursor.to_point(&display_map)),
6080 ));
6081 edit_ranges.push(edit_start..edit_end);
6082 }
6083
6084 self.transact(cx, |this, cx| {
6085 let buffer = this.buffer.update(cx, |buffer, cx| {
6086 let empty_str: Arc<str> = Arc::default();
6087 buffer.edit(
6088 edit_ranges
6089 .into_iter()
6090 .map(|range| (range, empty_str.clone())),
6091 None,
6092 cx,
6093 );
6094 buffer.snapshot(cx)
6095 });
6096 let new_selections = new_cursors
6097 .into_iter()
6098 .map(|(id, cursor)| {
6099 let cursor = cursor.to_point(&buffer);
6100 Selection {
6101 id,
6102 start: cursor,
6103 end: cursor,
6104 reversed: false,
6105 goal: SelectionGoal::None,
6106 }
6107 })
6108 .collect();
6109
6110 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6111 s.select(new_selections);
6112 });
6113 });
6114 }
6115
6116 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6117 if self.read_only(cx) {
6118 return;
6119 }
6120 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6121 for selection in self.selections.all::<Point>(cx) {
6122 let start = MultiBufferRow(selection.start.row);
6123 let end = if selection.start.row == selection.end.row {
6124 MultiBufferRow(selection.start.row + 1)
6125 } else {
6126 MultiBufferRow(selection.end.row)
6127 };
6128
6129 if let Some(last_row_range) = row_ranges.last_mut() {
6130 if start <= last_row_range.end {
6131 last_row_range.end = end;
6132 continue;
6133 }
6134 }
6135 row_ranges.push(start..end);
6136 }
6137
6138 let snapshot = self.buffer.read(cx).snapshot(cx);
6139 let mut cursor_positions = Vec::new();
6140 for row_range in &row_ranges {
6141 let anchor = snapshot.anchor_before(Point::new(
6142 row_range.end.previous_row().0,
6143 snapshot.line_len(row_range.end.previous_row()),
6144 ));
6145 cursor_positions.push(anchor..anchor);
6146 }
6147
6148 self.transact(cx, |this, cx| {
6149 for row_range in row_ranges.into_iter().rev() {
6150 for row in row_range.iter_rows().rev() {
6151 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6152 let next_line_row = row.next_row();
6153 let indent = snapshot.indent_size_for_line(next_line_row);
6154 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6155
6156 let replace = if snapshot.line_len(next_line_row) > indent.len {
6157 " "
6158 } else {
6159 ""
6160 };
6161
6162 this.buffer.update(cx, |buffer, cx| {
6163 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6164 });
6165 }
6166 }
6167
6168 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6169 s.select_anchor_ranges(cursor_positions)
6170 });
6171 });
6172 }
6173
6174 pub fn sort_lines_case_sensitive(
6175 &mut self,
6176 _: &SortLinesCaseSensitive,
6177 cx: &mut ViewContext<Self>,
6178 ) {
6179 self.manipulate_lines(cx, |lines| lines.sort())
6180 }
6181
6182 pub fn sort_lines_case_insensitive(
6183 &mut self,
6184 _: &SortLinesCaseInsensitive,
6185 cx: &mut ViewContext<Self>,
6186 ) {
6187 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6188 }
6189
6190 pub fn unique_lines_case_insensitive(
6191 &mut self,
6192 _: &UniqueLinesCaseInsensitive,
6193 cx: &mut ViewContext<Self>,
6194 ) {
6195 self.manipulate_lines(cx, |lines| {
6196 let mut seen = HashSet::default();
6197 lines.retain(|line| seen.insert(line.to_lowercase()));
6198 })
6199 }
6200
6201 pub fn unique_lines_case_sensitive(
6202 &mut self,
6203 _: &UniqueLinesCaseSensitive,
6204 cx: &mut ViewContext<Self>,
6205 ) {
6206 self.manipulate_lines(cx, |lines| {
6207 let mut seen = HashSet::default();
6208 lines.retain(|line| seen.insert(*line));
6209 })
6210 }
6211
6212 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6213 let mut revert_changes = HashMap::default();
6214 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6215 for hunk in hunks_for_rows(
6216 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6217 &multi_buffer_snapshot,
6218 ) {
6219 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6220 }
6221 if !revert_changes.is_empty() {
6222 self.transact(cx, |editor, cx| {
6223 editor.revert(revert_changes, cx);
6224 });
6225 }
6226 }
6227
6228 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6229 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6230 if !revert_changes.is_empty() {
6231 self.transact(cx, |editor, cx| {
6232 editor.revert(revert_changes, cx);
6233 });
6234 }
6235 }
6236
6237 fn apply_selected_diff_hunks(&mut self, _: &ApplyDiffHunk, cx: &mut ViewContext<Self>) {
6238 let snapshot = self.buffer.read(cx).snapshot(cx);
6239 let hunks = hunks_for_selections(&snapshot, &self.selections.disjoint_anchors());
6240 self.transact(cx, |editor, cx| {
6241 for hunk in hunks {
6242 if let Some(buffer) = editor.buffer.read(cx).buffer(hunk.buffer_id) {
6243 buffer.update(cx, |buffer, cx| {
6244 buffer.merge_into_base(Some(hunk.buffer_range.to_offset(buffer)), cx);
6245 });
6246 }
6247 }
6248 });
6249 }
6250
6251 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6252 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6253 let project_path = buffer.read(cx).project_path(cx)?;
6254 let project = self.project.as_ref()?.read(cx);
6255 let entry = project.entry_for_path(&project_path, cx)?;
6256 let abs_path = project.absolute_path(&project_path, cx)?;
6257 let parent = if entry.is_symlink {
6258 abs_path.canonicalize().ok()?
6259 } else {
6260 abs_path
6261 }
6262 .parent()?
6263 .to_path_buf();
6264 Some(parent)
6265 }) {
6266 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6267 }
6268 }
6269
6270 fn gather_revert_changes(
6271 &mut self,
6272 selections: &[Selection<Anchor>],
6273 cx: &mut ViewContext<'_, Editor>,
6274 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6275 let mut revert_changes = HashMap::default();
6276 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6277 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6278 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6279 }
6280 revert_changes
6281 }
6282
6283 pub fn prepare_revert_change(
6284 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6285 multi_buffer: &Model<MultiBuffer>,
6286 hunk: &MultiBufferDiffHunk,
6287 cx: &AppContext,
6288 ) -> Option<()> {
6289 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6290 let buffer = buffer.read(cx);
6291 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6292 let buffer_snapshot = buffer.snapshot();
6293 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6294 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6295 probe
6296 .0
6297 .start
6298 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6299 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6300 }) {
6301 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6302 Some(())
6303 } else {
6304 None
6305 }
6306 }
6307
6308 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6309 self.manipulate_lines(cx, |lines| lines.reverse())
6310 }
6311
6312 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6313 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6314 }
6315
6316 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6317 where
6318 Fn: FnMut(&mut Vec<&str>),
6319 {
6320 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6321 let buffer = self.buffer.read(cx).snapshot(cx);
6322
6323 let mut edits = Vec::new();
6324
6325 let selections = self.selections.all::<Point>(cx);
6326 let mut selections = selections.iter().peekable();
6327 let mut contiguous_row_selections = Vec::new();
6328 let mut new_selections = Vec::new();
6329 let mut added_lines = 0;
6330 let mut removed_lines = 0;
6331
6332 while let Some(selection) = selections.next() {
6333 let (start_row, end_row) = consume_contiguous_rows(
6334 &mut contiguous_row_selections,
6335 selection,
6336 &display_map,
6337 &mut selections,
6338 );
6339
6340 let start_point = Point::new(start_row.0, 0);
6341 let end_point = Point::new(
6342 end_row.previous_row().0,
6343 buffer.line_len(end_row.previous_row()),
6344 );
6345 let text = buffer
6346 .text_for_range(start_point..end_point)
6347 .collect::<String>();
6348
6349 let mut lines = text.split('\n').collect_vec();
6350
6351 let lines_before = lines.len();
6352 callback(&mut lines);
6353 let lines_after = lines.len();
6354
6355 edits.push((start_point..end_point, lines.join("\n")));
6356
6357 // Selections must change based on added and removed line count
6358 let start_row =
6359 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6360 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6361 new_selections.push(Selection {
6362 id: selection.id,
6363 start: start_row,
6364 end: end_row,
6365 goal: SelectionGoal::None,
6366 reversed: selection.reversed,
6367 });
6368
6369 if lines_after > lines_before {
6370 added_lines += lines_after - lines_before;
6371 } else if lines_before > lines_after {
6372 removed_lines += lines_before - lines_after;
6373 }
6374 }
6375
6376 self.transact(cx, |this, cx| {
6377 let buffer = this.buffer.update(cx, |buffer, cx| {
6378 buffer.edit(edits, None, cx);
6379 buffer.snapshot(cx)
6380 });
6381
6382 // Recalculate offsets on newly edited buffer
6383 let new_selections = new_selections
6384 .iter()
6385 .map(|s| {
6386 let start_point = Point::new(s.start.0, 0);
6387 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6388 Selection {
6389 id: s.id,
6390 start: buffer.point_to_offset(start_point),
6391 end: buffer.point_to_offset(end_point),
6392 goal: s.goal,
6393 reversed: s.reversed,
6394 }
6395 })
6396 .collect();
6397
6398 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6399 s.select(new_selections);
6400 });
6401
6402 this.request_autoscroll(Autoscroll::fit(), cx);
6403 });
6404 }
6405
6406 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6407 self.manipulate_text(cx, |text| text.to_uppercase())
6408 }
6409
6410 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6411 self.manipulate_text(cx, |text| text.to_lowercase())
6412 }
6413
6414 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6415 self.manipulate_text(cx, |text| {
6416 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6417 // https://github.com/rutrum/convert-case/issues/16
6418 text.split('\n')
6419 .map(|line| line.to_case(Case::Title))
6420 .join("\n")
6421 })
6422 }
6423
6424 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6425 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6426 }
6427
6428 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6429 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6430 }
6431
6432 pub fn convert_to_upper_camel_case(
6433 &mut self,
6434 _: &ConvertToUpperCamelCase,
6435 cx: &mut ViewContext<Self>,
6436 ) {
6437 self.manipulate_text(cx, |text| {
6438 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6439 // https://github.com/rutrum/convert-case/issues/16
6440 text.split('\n')
6441 .map(|line| line.to_case(Case::UpperCamel))
6442 .join("\n")
6443 })
6444 }
6445
6446 pub fn convert_to_lower_camel_case(
6447 &mut self,
6448 _: &ConvertToLowerCamelCase,
6449 cx: &mut ViewContext<Self>,
6450 ) {
6451 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6452 }
6453
6454 pub fn convert_to_opposite_case(
6455 &mut self,
6456 _: &ConvertToOppositeCase,
6457 cx: &mut ViewContext<Self>,
6458 ) {
6459 self.manipulate_text(cx, |text| {
6460 text.chars()
6461 .fold(String::with_capacity(text.len()), |mut t, c| {
6462 if c.is_uppercase() {
6463 t.extend(c.to_lowercase());
6464 } else {
6465 t.extend(c.to_uppercase());
6466 }
6467 t
6468 })
6469 })
6470 }
6471
6472 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6473 where
6474 Fn: FnMut(&str) -> String,
6475 {
6476 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6477 let buffer = self.buffer.read(cx).snapshot(cx);
6478
6479 let mut new_selections = Vec::new();
6480 let mut edits = Vec::new();
6481 let mut selection_adjustment = 0i32;
6482
6483 for selection in self.selections.all::<usize>(cx) {
6484 let selection_is_empty = selection.is_empty();
6485
6486 let (start, end) = if selection_is_empty {
6487 let word_range = movement::surrounding_word(
6488 &display_map,
6489 selection.start.to_display_point(&display_map),
6490 );
6491 let start = word_range.start.to_offset(&display_map, Bias::Left);
6492 let end = word_range.end.to_offset(&display_map, Bias::Left);
6493 (start, end)
6494 } else {
6495 (selection.start, selection.end)
6496 };
6497
6498 let text = buffer.text_for_range(start..end).collect::<String>();
6499 let old_length = text.len() as i32;
6500 let text = callback(&text);
6501
6502 new_selections.push(Selection {
6503 start: (start as i32 - selection_adjustment) as usize,
6504 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6505 goal: SelectionGoal::None,
6506 ..selection
6507 });
6508
6509 selection_adjustment += old_length - text.len() as i32;
6510
6511 edits.push((start..end, text));
6512 }
6513
6514 self.transact(cx, |this, cx| {
6515 this.buffer.update(cx, |buffer, cx| {
6516 buffer.edit(edits, None, cx);
6517 });
6518
6519 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6520 s.select(new_selections);
6521 });
6522
6523 this.request_autoscroll(Autoscroll::fit(), cx);
6524 });
6525 }
6526
6527 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6528 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6529 let buffer = &display_map.buffer_snapshot;
6530 let selections = self.selections.all::<Point>(cx);
6531
6532 let mut edits = Vec::new();
6533 let mut selections_iter = selections.iter().peekable();
6534 while let Some(selection) = selections_iter.next() {
6535 // Avoid duplicating the same lines twice.
6536 let mut rows = selection.spanned_rows(false, &display_map);
6537
6538 while let Some(next_selection) = selections_iter.peek() {
6539 let next_rows = next_selection.spanned_rows(false, &display_map);
6540 if next_rows.start < rows.end {
6541 rows.end = next_rows.end;
6542 selections_iter.next().unwrap();
6543 } else {
6544 break;
6545 }
6546 }
6547
6548 // Copy the text from the selected row region and splice it either at the start
6549 // or end of the region.
6550 let start = Point::new(rows.start.0, 0);
6551 let end = Point::new(
6552 rows.end.previous_row().0,
6553 buffer.line_len(rows.end.previous_row()),
6554 );
6555 let text = buffer
6556 .text_for_range(start..end)
6557 .chain(Some("\n"))
6558 .collect::<String>();
6559 let insert_location = if upwards {
6560 Point::new(rows.end.0, 0)
6561 } else {
6562 start
6563 };
6564 edits.push((insert_location..insert_location, text));
6565 }
6566
6567 self.transact(cx, |this, cx| {
6568 this.buffer.update(cx, |buffer, cx| {
6569 buffer.edit(edits, None, cx);
6570 });
6571
6572 this.request_autoscroll(Autoscroll::fit(), cx);
6573 });
6574 }
6575
6576 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6577 self.duplicate_line(true, cx);
6578 }
6579
6580 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6581 self.duplicate_line(false, cx);
6582 }
6583
6584 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6585 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6586 let buffer = self.buffer.read(cx).snapshot(cx);
6587
6588 let mut edits = Vec::new();
6589 let mut unfold_ranges = Vec::new();
6590 let mut refold_ranges = Vec::new();
6591
6592 let selections = self.selections.all::<Point>(cx);
6593 let mut selections = selections.iter().peekable();
6594 let mut contiguous_row_selections = Vec::new();
6595 let mut new_selections = Vec::new();
6596
6597 while let Some(selection) = selections.next() {
6598 // Find all the selections that span a contiguous row range
6599 let (start_row, end_row) = consume_contiguous_rows(
6600 &mut contiguous_row_selections,
6601 selection,
6602 &display_map,
6603 &mut selections,
6604 );
6605
6606 // Move the text spanned by the row range to be before the line preceding the row range
6607 if start_row.0 > 0 {
6608 let range_to_move = Point::new(
6609 start_row.previous_row().0,
6610 buffer.line_len(start_row.previous_row()),
6611 )
6612 ..Point::new(
6613 end_row.previous_row().0,
6614 buffer.line_len(end_row.previous_row()),
6615 );
6616 let insertion_point = display_map
6617 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6618 .0;
6619
6620 // Don't move lines across excerpts
6621 if buffer
6622 .excerpt_boundaries_in_range((
6623 Bound::Excluded(insertion_point),
6624 Bound::Included(range_to_move.end),
6625 ))
6626 .next()
6627 .is_none()
6628 {
6629 let text = buffer
6630 .text_for_range(range_to_move.clone())
6631 .flat_map(|s| s.chars())
6632 .skip(1)
6633 .chain(['\n'])
6634 .collect::<String>();
6635
6636 edits.push((
6637 buffer.anchor_after(range_to_move.start)
6638 ..buffer.anchor_before(range_to_move.end),
6639 String::new(),
6640 ));
6641 let insertion_anchor = buffer.anchor_after(insertion_point);
6642 edits.push((insertion_anchor..insertion_anchor, text));
6643
6644 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6645
6646 // Move selections up
6647 new_selections.extend(contiguous_row_selections.drain(..).map(
6648 |mut selection| {
6649 selection.start.row -= row_delta;
6650 selection.end.row -= row_delta;
6651 selection
6652 },
6653 ));
6654
6655 // Move folds up
6656 unfold_ranges.push(range_to_move.clone());
6657 for fold in display_map.folds_in_range(
6658 buffer.anchor_before(range_to_move.start)
6659 ..buffer.anchor_after(range_to_move.end),
6660 ) {
6661 let mut start = fold.range.start.to_point(&buffer);
6662 let mut end = fold.range.end.to_point(&buffer);
6663 start.row -= row_delta;
6664 end.row -= row_delta;
6665 refold_ranges.push((start..end, fold.placeholder.clone()));
6666 }
6667 }
6668 }
6669
6670 // If we didn't move line(s), preserve the existing selections
6671 new_selections.append(&mut contiguous_row_selections);
6672 }
6673
6674 self.transact(cx, |this, cx| {
6675 this.unfold_ranges(unfold_ranges, true, true, cx);
6676 this.buffer.update(cx, |buffer, cx| {
6677 for (range, text) in edits {
6678 buffer.edit([(range, text)], None, cx);
6679 }
6680 });
6681 this.fold_ranges(refold_ranges, true, cx);
6682 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6683 s.select(new_selections);
6684 })
6685 });
6686 }
6687
6688 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6689 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6690 let buffer = self.buffer.read(cx).snapshot(cx);
6691
6692 let mut edits = Vec::new();
6693 let mut unfold_ranges = Vec::new();
6694 let mut refold_ranges = Vec::new();
6695
6696 let selections = self.selections.all::<Point>(cx);
6697 let mut selections = selections.iter().peekable();
6698 let mut contiguous_row_selections = Vec::new();
6699 let mut new_selections = Vec::new();
6700
6701 while let Some(selection) = selections.next() {
6702 // Find all the selections that span a contiguous row range
6703 let (start_row, end_row) = consume_contiguous_rows(
6704 &mut contiguous_row_selections,
6705 selection,
6706 &display_map,
6707 &mut selections,
6708 );
6709
6710 // Move the text spanned by the row range to be after the last line of the row range
6711 if end_row.0 <= buffer.max_point().row {
6712 let range_to_move =
6713 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6714 let insertion_point = display_map
6715 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6716 .0;
6717
6718 // Don't move lines across excerpt boundaries
6719 if buffer
6720 .excerpt_boundaries_in_range((
6721 Bound::Excluded(range_to_move.start),
6722 Bound::Included(insertion_point),
6723 ))
6724 .next()
6725 .is_none()
6726 {
6727 let mut text = String::from("\n");
6728 text.extend(buffer.text_for_range(range_to_move.clone()));
6729 text.pop(); // Drop trailing newline
6730 edits.push((
6731 buffer.anchor_after(range_to_move.start)
6732 ..buffer.anchor_before(range_to_move.end),
6733 String::new(),
6734 ));
6735 let insertion_anchor = buffer.anchor_after(insertion_point);
6736 edits.push((insertion_anchor..insertion_anchor, text));
6737
6738 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6739
6740 // Move selections down
6741 new_selections.extend(contiguous_row_selections.drain(..).map(
6742 |mut selection| {
6743 selection.start.row += row_delta;
6744 selection.end.row += row_delta;
6745 selection
6746 },
6747 ));
6748
6749 // Move folds down
6750 unfold_ranges.push(range_to_move.clone());
6751 for fold in display_map.folds_in_range(
6752 buffer.anchor_before(range_to_move.start)
6753 ..buffer.anchor_after(range_to_move.end),
6754 ) {
6755 let mut start = fold.range.start.to_point(&buffer);
6756 let mut end = fold.range.end.to_point(&buffer);
6757 start.row += row_delta;
6758 end.row += row_delta;
6759 refold_ranges.push((start..end, fold.placeholder.clone()));
6760 }
6761 }
6762 }
6763
6764 // If we didn't move line(s), preserve the existing selections
6765 new_selections.append(&mut contiguous_row_selections);
6766 }
6767
6768 self.transact(cx, |this, cx| {
6769 this.unfold_ranges(unfold_ranges, true, true, cx);
6770 this.buffer.update(cx, |buffer, cx| {
6771 for (range, text) in edits {
6772 buffer.edit([(range, text)], None, cx);
6773 }
6774 });
6775 this.fold_ranges(refold_ranges, true, cx);
6776 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6777 });
6778 }
6779
6780 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6781 let text_layout_details = &self.text_layout_details(cx);
6782 self.transact(cx, |this, cx| {
6783 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6784 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6785 let line_mode = s.line_mode;
6786 s.move_with(|display_map, selection| {
6787 if !selection.is_empty() || line_mode {
6788 return;
6789 }
6790
6791 let mut head = selection.head();
6792 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6793 if head.column() == display_map.line_len(head.row()) {
6794 transpose_offset = display_map
6795 .buffer_snapshot
6796 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6797 }
6798
6799 if transpose_offset == 0 {
6800 return;
6801 }
6802
6803 *head.column_mut() += 1;
6804 head = display_map.clip_point(head, Bias::Right);
6805 let goal = SelectionGoal::HorizontalPosition(
6806 display_map
6807 .x_for_display_point(head, text_layout_details)
6808 .into(),
6809 );
6810 selection.collapse_to(head, goal);
6811
6812 let transpose_start = display_map
6813 .buffer_snapshot
6814 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6815 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6816 let transpose_end = display_map
6817 .buffer_snapshot
6818 .clip_offset(transpose_offset + 1, Bias::Right);
6819 if let Some(ch) =
6820 display_map.buffer_snapshot.chars_at(transpose_start).next()
6821 {
6822 edits.push((transpose_start..transpose_offset, String::new()));
6823 edits.push((transpose_end..transpose_end, ch.to_string()));
6824 }
6825 }
6826 });
6827 edits
6828 });
6829 this.buffer
6830 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6831 let selections = this.selections.all::<usize>(cx);
6832 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6833 s.select(selections);
6834 });
6835 });
6836 }
6837
6838 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6839 self.rewrap_impl(true, cx)
6840 }
6841
6842 pub fn rewrap_impl(&mut self, only_text: bool, cx: &mut ViewContext<Self>) {
6843 let buffer = self.buffer.read(cx).snapshot(cx);
6844 let selections = self.selections.all::<Point>(cx);
6845 let mut selections = selections.iter().peekable();
6846
6847 let mut edits = Vec::new();
6848 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6849
6850 while let Some(selection) = selections.next() {
6851 let mut start_row = selection.start.row;
6852 let mut end_row = selection.end.row;
6853
6854 // Skip selections that overlap with a range that has already been rewrapped.
6855 let selection_range = start_row..end_row;
6856 if rewrapped_row_ranges
6857 .iter()
6858 .any(|range| range.overlaps(&selection_range))
6859 {
6860 continue;
6861 }
6862
6863 let mut should_rewrap = !only_text;
6864
6865 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6866 match language_scope.language_name().0.as_ref() {
6867 "Markdown" | "Plain Text" => {
6868 should_rewrap = true;
6869 }
6870 _ => {}
6871 }
6872 }
6873
6874 // Since not all lines in the selection may be at the same indent
6875 // level, choose the indent size that is the most common between all
6876 // of the lines.
6877 //
6878 // If there is a tie, we use the deepest indent.
6879 let (indent_size, indent_end) = {
6880 let mut indent_size_occurrences = HashMap::default();
6881 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6882
6883 for row in start_row..=end_row {
6884 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6885 rows_by_indent_size.entry(indent).or_default().push(row);
6886 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6887 }
6888
6889 let indent_size = indent_size_occurrences
6890 .into_iter()
6891 .max_by_key(|(indent, count)| (*count, indent.len))
6892 .map(|(indent, _)| indent)
6893 .unwrap_or_default();
6894 let row = rows_by_indent_size[&indent_size][0];
6895 let indent_end = Point::new(row, indent_size.len);
6896
6897 (indent_size, indent_end)
6898 };
6899
6900 let mut line_prefix = indent_size.chars().collect::<String>();
6901
6902 if let Some(comment_prefix) =
6903 buffer
6904 .language_scope_at(selection.head())
6905 .and_then(|language| {
6906 language
6907 .line_comment_prefixes()
6908 .iter()
6909 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6910 .cloned()
6911 })
6912 {
6913 line_prefix.push_str(&comment_prefix);
6914 should_rewrap = true;
6915 }
6916
6917 if selection.is_empty() {
6918 'expand_upwards: while start_row > 0 {
6919 let prev_row = start_row - 1;
6920 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6921 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6922 {
6923 start_row = prev_row;
6924 } else {
6925 break 'expand_upwards;
6926 }
6927 }
6928
6929 'expand_downwards: while end_row < buffer.max_point().row {
6930 let next_row = end_row + 1;
6931 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6932 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6933 {
6934 end_row = next_row;
6935 } else {
6936 break 'expand_downwards;
6937 }
6938 }
6939 }
6940
6941 if !should_rewrap {
6942 continue;
6943 }
6944
6945 let start = Point::new(start_row, 0);
6946 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6947 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6948 let Some(lines_without_prefixes) = selection_text
6949 .lines()
6950 .map(|line| {
6951 line.strip_prefix(&line_prefix)
6952 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6953 .ok_or_else(|| {
6954 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6955 })
6956 })
6957 .collect::<Result<Vec<_>, _>>()
6958 .log_err()
6959 else {
6960 continue;
6961 };
6962
6963 let unwrapped_text = lines_without_prefixes.join(" ");
6964 let wrap_column = buffer
6965 .settings_at(Point::new(start_row, 0), cx)
6966 .preferred_line_length as usize;
6967 let mut wrapped_text = String::new();
6968 let mut current_line = line_prefix.clone();
6969 for word in unwrapped_text.split_whitespace() {
6970 if current_line.len() + word.len() >= wrap_column {
6971 wrapped_text.push_str(¤t_line);
6972 wrapped_text.push('\n');
6973 current_line.truncate(line_prefix.len());
6974 }
6975
6976 if current_line.len() > line_prefix.len() {
6977 current_line.push(' ');
6978 }
6979
6980 current_line.push_str(word);
6981 }
6982
6983 if !current_line.is_empty() {
6984 wrapped_text.push_str(¤t_line);
6985 }
6986
6987 let diff = TextDiff::from_lines(&selection_text, &wrapped_text);
6988 let mut offset = start.to_offset(&buffer);
6989 let mut moved_since_edit = true;
6990
6991 for change in diff.iter_all_changes() {
6992 let value = change.value();
6993 match change.tag() {
6994 ChangeTag::Equal => {
6995 offset += value.len();
6996 moved_since_edit = true;
6997 }
6998 ChangeTag::Delete => {
6999 let start = buffer.anchor_after(offset);
7000 let end = buffer.anchor_before(offset + value.len());
7001
7002 if moved_since_edit {
7003 edits.push((start..end, String::new()));
7004 } else {
7005 edits.last_mut().unwrap().0.end = end;
7006 }
7007
7008 offset += value.len();
7009 moved_since_edit = false;
7010 }
7011 ChangeTag::Insert => {
7012 if moved_since_edit {
7013 let anchor = buffer.anchor_after(offset);
7014 edits.push((anchor..anchor, value.to_string()));
7015 } else {
7016 edits.last_mut().unwrap().1.push_str(value);
7017 }
7018
7019 moved_since_edit = false;
7020 }
7021 }
7022 }
7023
7024 rewrapped_row_ranges.push(start_row..=end_row);
7025 }
7026
7027 self.buffer
7028 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7029 }
7030
7031 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7032 let mut text = String::new();
7033 let buffer = self.buffer.read(cx).snapshot(cx);
7034 let mut selections = self.selections.all::<Point>(cx);
7035 let mut clipboard_selections = Vec::with_capacity(selections.len());
7036 {
7037 let max_point = buffer.max_point();
7038 let mut is_first = true;
7039 for selection in &mut selections {
7040 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7041 if is_entire_line {
7042 selection.start = Point::new(selection.start.row, 0);
7043 if !selection.is_empty() && selection.end.column == 0 {
7044 selection.end = cmp::min(max_point, selection.end);
7045 } else {
7046 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7047 }
7048 selection.goal = SelectionGoal::None;
7049 }
7050 if is_first {
7051 is_first = false;
7052 } else {
7053 text += "\n";
7054 }
7055 let mut len = 0;
7056 for chunk in buffer.text_for_range(selection.start..selection.end) {
7057 text.push_str(chunk);
7058 len += chunk.len();
7059 }
7060 clipboard_selections.push(ClipboardSelection {
7061 len,
7062 is_entire_line,
7063 first_line_indent: buffer
7064 .indent_size_for_line(MultiBufferRow(selection.start.row))
7065 .len,
7066 });
7067 }
7068 }
7069
7070 self.transact(cx, |this, cx| {
7071 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7072 s.select(selections);
7073 });
7074 this.insert("", cx);
7075 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7076 text,
7077 clipboard_selections,
7078 ));
7079 });
7080 }
7081
7082 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7083 let selections = self.selections.all::<Point>(cx);
7084 let buffer = self.buffer.read(cx).read(cx);
7085 let mut text = String::new();
7086
7087 let mut clipboard_selections = Vec::with_capacity(selections.len());
7088 {
7089 let max_point = buffer.max_point();
7090 let mut is_first = true;
7091 for selection in selections.iter() {
7092 let mut start = selection.start;
7093 let mut end = selection.end;
7094 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7095 if is_entire_line {
7096 start = Point::new(start.row, 0);
7097 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7098 }
7099 if is_first {
7100 is_first = false;
7101 } else {
7102 text += "\n";
7103 }
7104 let mut len = 0;
7105 for chunk in buffer.text_for_range(start..end) {
7106 text.push_str(chunk);
7107 len += chunk.len();
7108 }
7109 clipboard_selections.push(ClipboardSelection {
7110 len,
7111 is_entire_line,
7112 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7113 });
7114 }
7115 }
7116
7117 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7118 text,
7119 clipboard_selections,
7120 ));
7121 }
7122
7123 pub fn do_paste(
7124 &mut self,
7125 text: &String,
7126 clipboard_selections: Option<Vec<ClipboardSelection>>,
7127 handle_entire_lines: bool,
7128 cx: &mut ViewContext<Self>,
7129 ) {
7130 if self.read_only(cx) {
7131 return;
7132 }
7133
7134 let clipboard_text = Cow::Borrowed(text);
7135
7136 self.transact(cx, |this, cx| {
7137 if let Some(mut clipboard_selections) = clipboard_selections {
7138 let old_selections = this.selections.all::<usize>(cx);
7139 let all_selections_were_entire_line =
7140 clipboard_selections.iter().all(|s| s.is_entire_line);
7141 let first_selection_indent_column =
7142 clipboard_selections.first().map(|s| s.first_line_indent);
7143 if clipboard_selections.len() != old_selections.len() {
7144 clipboard_selections.drain(..);
7145 }
7146
7147 this.buffer.update(cx, |buffer, cx| {
7148 let snapshot = buffer.read(cx);
7149 let mut start_offset = 0;
7150 let mut edits = Vec::new();
7151 let mut original_indent_columns = Vec::new();
7152 for (ix, selection) in old_selections.iter().enumerate() {
7153 let to_insert;
7154 let entire_line;
7155 let original_indent_column;
7156 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7157 let end_offset = start_offset + clipboard_selection.len;
7158 to_insert = &clipboard_text[start_offset..end_offset];
7159 entire_line = clipboard_selection.is_entire_line;
7160 start_offset = end_offset + 1;
7161 original_indent_column = Some(clipboard_selection.first_line_indent);
7162 } else {
7163 to_insert = clipboard_text.as_str();
7164 entire_line = all_selections_were_entire_line;
7165 original_indent_column = first_selection_indent_column
7166 }
7167
7168 // If the corresponding selection was empty when this slice of the
7169 // clipboard text was written, then the entire line containing the
7170 // selection was copied. If this selection is also currently empty,
7171 // then paste the line before the current line of the buffer.
7172 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7173 let column = selection.start.to_point(&snapshot).column as usize;
7174 let line_start = selection.start - column;
7175 line_start..line_start
7176 } else {
7177 selection.range()
7178 };
7179
7180 edits.push((range, to_insert));
7181 original_indent_columns.extend(original_indent_column);
7182 }
7183 drop(snapshot);
7184
7185 buffer.edit(
7186 edits,
7187 Some(AutoindentMode::Block {
7188 original_indent_columns,
7189 }),
7190 cx,
7191 );
7192 });
7193
7194 let selections = this.selections.all::<usize>(cx);
7195 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7196 } else {
7197 this.insert(&clipboard_text, cx);
7198 }
7199 });
7200 }
7201
7202 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7203 if let Some(item) = cx.read_from_clipboard() {
7204 let entries = item.entries();
7205
7206 match entries.first() {
7207 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7208 // of all the pasted entries.
7209 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7210 .do_paste(
7211 clipboard_string.text(),
7212 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7213 true,
7214 cx,
7215 ),
7216 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7217 }
7218 }
7219 }
7220
7221 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7222 if self.read_only(cx) {
7223 return;
7224 }
7225
7226 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7227 if let Some((selections, _)) =
7228 self.selection_history.transaction(transaction_id).cloned()
7229 {
7230 self.change_selections(None, cx, |s| {
7231 s.select_anchors(selections.to_vec());
7232 });
7233 }
7234 self.request_autoscroll(Autoscroll::fit(), cx);
7235 self.unmark_text(cx);
7236 self.refresh_inline_completion(true, false, cx);
7237 cx.emit(EditorEvent::Edited { transaction_id });
7238 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7239 }
7240 }
7241
7242 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7243 if self.read_only(cx) {
7244 return;
7245 }
7246
7247 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7248 if let Some((_, Some(selections))) =
7249 self.selection_history.transaction(transaction_id).cloned()
7250 {
7251 self.change_selections(None, cx, |s| {
7252 s.select_anchors(selections.to_vec());
7253 });
7254 }
7255 self.request_autoscroll(Autoscroll::fit(), cx);
7256 self.unmark_text(cx);
7257 self.refresh_inline_completion(true, false, cx);
7258 cx.emit(EditorEvent::Edited { transaction_id });
7259 }
7260 }
7261
7262 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7263 self.buffer
7264 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7265 }
7266
7267 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7268 self.buffer
7269 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7270 }
7271
7272 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7273 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7274 let line_mode = s.line_mode;
7275 s.move_with(|map, selection| {
7276 let cursor = if selection.is_empty() && !line_mode {
7277 movement::left(map, selection.start)
7278 } else {
7279 selection.start
7280 };
7281 selection.collapse_to(cursor, SelectionGoal::None);
7282 });
7283 })
7284 }
7285
7286 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7287 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7288 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7289 })
7290 }
7291
7292 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7293 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7294 let line_mode = s.line_mode;
7295 s.move_with(|map, selection| {
7296 let cursor = if selection.is_empty() && !line_mode {
7297 movement::right(map, selection.end)
7298 } else {
7299 selection.end
7300 };
7301 selection.collapse_to(cursor, SelectionGoal::None)
7302 });
7303 })
7304 }
7305
7306 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7307 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7308 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7309 })
7310 }
7311
7312 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7313 if self.take_rename(true, cx).is_some() {
7314 return;
7315 }
7316
7317 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7318 cx.propagate();
7319 return;
7320 }
7321
7322 let text_layout_details = &self.text_layout_details(cx);
7323 let selection_count = self.selections.count();
7324 let first_selection = self.selections.first_anchor();
7325
7326 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7327 let line_mode = s.line_mode;
7328 s.move_with(|map, selection| {
7329 if !selection.is_empty() && !line_mode {
7330 selection.goal = SelectionGoal::None;
7331 }
7332 let (cursor, goal) = movement::up(
7333 map,
7334 selection.start,
7335 selection.goal,
7336 false,
7337 text_layout_details,
7338 );
7339 selection.collapse_to(cursor, goal);
7340 });
7341 });
7342
7343 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7344 {
7345 cx.propagate();
7346 }
7347 }
7348
7349 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7350 if self.take_rename(true, cx).is_some() {
7351 return;
7352 }
7353
7354 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7355 cx.propagate();
7356 return;
7357 }
7358
7359 let text_layout_details = &self.text_layout_details(cx);
7360
7361 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7362 let line_mode = s.line_mode;
7363 s.move_with(|map, selection| {
7364 if !selection.is_empty() && !line_mode {
7365 selection.goal = SelectionGoal::None;
7366 }
7367 let (cursor, goal) = movement::up_by_rows(
7368 map,
7369 selection.start,
7370 action.lines,
7371 selection.goal,
7372 false,
7373 text_layout_details,
7374 );
7375 selection.collapse_to(cursor, goal);
7376 });
7377 })
7378 }
7379
7380 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7381 if self.take_rename(true, cx).is_some() {
7382 return;
7383 }
7384
7385 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7386 cx.propagate();
7387 return;
7388 }
7389
7390 let text_layout_details = &self.text_layout_details(cx);
7391
7392 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7393 let line_mode = s.line_mode;
7394 s.move_with(|map, selection| {
7395 if !selection.is_empty() && !line_mode {
7396 selection.goal = SelectionGoal::None;
7397 }
7398 let (cursor, goal) = movement::down_by_rows(
7399 map,
7400 selection.start,
7401 action.lines,
7402 selection.goal,
7403 false,
7404 text_layout_details,
7405 );
7406 selection.collapse_to(cursor, goal);
7407 });
7408 })
7409 }
7410
7411 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7412 let text_layout_details = &self.text_layout_details(cx);
7413 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7414 s.move_heads_with(|map, head, goal| {
7415 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7416 })
7417 })
7418 }
7419
7420 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7421 let text_layout_details = &self.text_layout_details(cx);
7422 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7423 s.move_heads_with(|map, head, goal| {
7424 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7425 })
7426 })
7427 }
7428
7429 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7430 let Some(row_count) = self.visible_row_count() else {
7431 return;
7432 };
7433
7434 let text_layout_details = &self.text_layout_details(cx);
7435
7436 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7437 s.move_heads_with(|map, head, goal| {
7438 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7439 })
7440 })
7441 }
7442
7443 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7444 if self.take_rename(true, cx).is_some() {
7445 return;
7446 }
7447
7448 if self
7449 .context_menu
7450 .write()
7451 .as_mut()
7452 .map(|menu| menu.select_first(self.project.as_ref(), cx))
7453 .unwrap_or(false)
7454 {
7455 return;
7456 }
7457
7458 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7459 cx.propagate();
7460 return;
7461 }
7462
7463 let Some(row_count) = self.visible_row_count() else {
7464 return;
7465 };
7466
7467 let autoscroll = if action.center_cursor {
7468 Autoscroll::center()
7469 } else {
7470 Autoscroll::fit()
7471 };
7472
7473 let text_layout_details = &self.text_layout_details(cx);
7474
7475 self.change_selections(Some(autoscroll), cx, |s| {
7476 let line_mode = s.line_mode;
7477 s.move_with(|map, selection| {
7478 if !selection.is_empty() && !line_mode {
7479 selection.goal = SelectionGoal::None;
7480 }
7481 let (cursor, goal) = movement::up_by_rows(
7482 map,
7483 selection.end,
7484 row_count,
7485 selection.goal,
7486 false,
7487 text_layout_details,
7488 );
7489 selection.collapse_to(cursor, goal);
7490 });
7491 });
7492 }
7493
7494 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7495 let text_layout_details = &self.text_layout_details(cx);
7496 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7497 s.move_heads_with(|map, head, goal| {
7498 movement::up(map, head, goal, false, text_layout_details)
7499 })
7500 })
7501 }
7502
7503 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7504 self.take_rename(true, cx);
7505
7506 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7507 cx.propagate();
7508 return;
7509 }
7510
7511 let text_layout_details = &self.text_layout_details(cx);
7512 let selection_count = self.selections.count();
7513 let first_selection = self.selections.first_anchor();
7514
7515 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7516 let line_mode = s.line_mode;
7517 s.move_with(|map, selection| {
7518 if !selection.is_empty() && !line_mode {
7519 selection.goal = SelectionGoal::None;
7520 }
7521 let (cursor, goal) = movement::down(
7522 map,
7523 selection.end,
7524 selection.goal,
7525 false,
7526 text_layout_details,
7527 );
7528 selection.collapse_to(cursor, goal);
7529 });
7530 });
7531
7532 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7533 {
7534 cx.propagate();
7535 }
7536 }
7537
7538 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7539 let Some(row_count) = self.visible_row_count() else {
7540 return;
7541 };
7542
7543 let text_layout_details = &self.text_layout_details(cx);
7544
7545 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7546 s.move_heads_with(|map, head, goal| {
7547 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7548 })
7549 })
7550 }
7551
7552 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7553 if self.take_rename(true, cx).is_some() {
7554 return;
7555 }
7556
7557 if self
7558 .context_menu
7559 .write()
7560 .as_mut()
7561 .map(|menu| menu.select_last(self.project.as_ref(), cx))
7562 .unwrap_or(false)
7563 {
7564 return;
7565 }
7566
7567 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7568 cx.propagate();
7569 return;
7570 }
7571
7572 let Some(row_count) = self.visible_row_count() else {
7573 return;
7574 };
7575
7576 let autoscroll = if action.center_cursor {
7577 Autoscroll::center()
7578 } else {
7579 Autoscroll::fit()
7580 };
7581
7582 let text_layout_details = &self.text_layout_details(cx);
7583 self.change_selections(Some(autoscroll), cx, |s| {
7584 let line_mode = s.line_mode;
7585 s.move_with(|map, selection| {
7586 if !selection.is_empty() && !line_mode {
7587 selection.goal = SelectionGoal::None;
7588 }
7589 let (cursor, goal) = movement::down_by_rows(
7590 map,
7591 selection.end,
7592 row_count,
7593 selection.goal,
7594 false,
7595 text_layout_details,
7596 );
7597 selection.collapse_to(cursor, goal);
7598 });
7599 });
7600 }
7601
7602 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7603 let text_layout_details = &self.text_layout_details(cx);
7604 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7605 s.move_heads_with(|map, head, goal| {
7606 movement::down(map, head, goal, false, text_layout_details)
7607 })
7608 });
7609 }
7610
7611 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7612 if let Some(context_menu) = self.context_menu.write().as_mut() {
7613 context_menu.select_first(self.project.as_ref(), cx);
7614 }
7615 }
7616
7617 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7618 if let Some(context_menu) = self.context_menu.write().as_mut() {
7619 context_menu.select_prev(self.project.as_ref(), cx);
7620 }
7621 }
7622
7623 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7624 if let Some(context_menu) = self.context_menu.write().as_mut() {
7625 context_menu.select_next(self.project.as_ref(), cx);
7626 }
7627 }
7628
7629 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7630 if let Some(context_menu) = self.context_menu.write().as_mut() {
7631 context_menu.select_last(self.project.as_ref(), cx);
7632 }
7633 }
7634
7635 pub fn move_to_previous_word_start(
7636 &mut self,
7637 _: &MoveToPreviousWordStart,
7638 cx: &mut ViewContext<Self>,
7639 ) {
7640 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7641 s.move_cursors_with(|map, head, _| {
7642 (
7643 movement::previous_word_start(map, head),
7644 SelectionGoal::None,
7645 )
7646 });
7647 })
7648 }
7649
7650 pub fn move_to_previous_subword_start(
7651 &mut self,
7652 _: &MoveToPreviousSubwordStart,
7653 cx: &mut ViewContext<Self>,
7654 ) {
7655 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7656 s.move_cursors_with(|map, head, _| {
7657 (
7658 movement::previous_subword_start(map, head),
7659 SelectionGoal::None,
7660 )
7661 });
7662 })
7663 }
7664
7665 pub fn select_to_previous_word_start(
7666 &mut self,
7667 _: &SelectToPreviousWordStart,
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::previous_word_start(map, head),
7674 SelectionGoal::None,
7675 )
7676 });
7677 })
7678 }
7679
7680 pub fn select_to_previous_subword_start(
7681 &mut self,
7682 _: &SelectToPreviousSubwordStart,
7683 cx: &mut ViewContext<Self>,
7684 ) {
7685 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7686 s.move_heads_with(|map, head, _| {
7687 (
7688 movement::previous_subword_start(map, head),
7689 SelectionGoal::None,
7690 )
7691 });
7692 })
7693 }
7694
7695 pub fn delete_to_previous_word_start(
7696 &mut self,
7697 action: &DeleteToPreviousWordStart,
7698 cx: &mut ViewContext<Self>,
7699 ) {
7700 self.transact(cx, |this, cx| {
7701 this.select_autoclose_pair(cx);
7702 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7703 let line_mode = s.line_mode;
7704 s.move_with(|map, selection| {
7705 if selection.is_empty() && !line_mode {
7706 let cursor = if action.ignore_newlines {
7707 movement::previous_word_start(map, selection.head())
7708 } else {
7709 movement::previous_word_start_or_newline(map, selection.head())
7710 };
7711 selection.set_head(cursor, SelectionGoal::None);
7712 }
7713 });
7714 });
7715 this.insert("", cx);
7716 });
7717 }
7718
7719 pub fn delete_to_previous_subword_start(
7720 &mut self,
7721 _: &DeleteToPreviousSubwordStart,
7722 cx: &mut ViewContext<Self>,
7723 ) {
7724 self.transact(cx, |this, cx| {
7725 this.select_autoclose_pair(cx);
7726 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7727 let line_mode = s.line_mode;
7728 s.move_with(|map, selection| {
7729 if selection.is_empty() && !line_mode {
7730 let cursor = movement::previous_subword_start(map, selection.head());
7731 selection.set_head(cursor, SelectionGoal::None);
7732 }
7733 });
7734 });
7735 this.insert("", cx);
7736 });
7737 }
7738
7739 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7740 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7741 s.move_cursors_with(|map, head, _| {
7742 (movement::next_word_end(map, head), SelectionGoal::None)
7743 });
7744 })
7745 }
7746
7747 pub fn move_to_next_subword_end(
7748 &mut self,
7749 _: &MoveToNextSubwordEnd,
7750 cx: &mut ViewContext<Self>,
7751 ) {
7752 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7753 s.move_cursors_with(|map, head, _| {
7754 (movement::next_subword_end(map, head), SelectionGoal::None)
7755 });
7756 })
7757 }
7758
7759 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7760 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7761 s.move_heads_with(|map, head, _| {
7762 (movement::next_word_end(map, head), SelectionGoal::None)
7763 });
7764 })
7765 }
7766
7767 pub fn select_to_next_subword_end(
7768 &mut self,
7769 _: &SelectToNextSubwordEnd,
7770 cx: &mut ViewContext<Self>,
7771 ) {
7772 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7773 s.move_heads_with(|map, head, _| {
7774 (movement::next_subword_end(map, head), SelectionGoal::None)
7775 });
7776 })
7777 }
7778
7779 pub fn delete_to_next_word_end(
7780 &mut self,
7781 action: &DeleteToNextWordEnd,
7782 cx: &mut ViewContext<Self>,
7783 ) {
7784 self.transact(cx, |this, cx| {
7785 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7786 let line_mode = s.line_mode;
7787 s.move_with(|map, selection| {
7788 if selection.is_empty() && !line_mode {
7789 let cursor = if action.ignore_newlines {
7790 movement::next_word_end(map, selection.head())
7791 } else {
7792 movement::next_word_end_or_newline(map, selection.head())
7793 };
7794 selection.set_head(cursor, SelectionGoal::None);
7795 }
7796 });
7797 });
7798 this.insert("", cx);
7799 });
7800 }
7801
7802 pub fn delete_to_next_subword_end(
7803 &mut self,
7804 _: &DeleteToNextSubwordEnd,
7805 cx: &mut ViewContext<Self>,
7806 ) {
7807 self.transact(cx, |this, cx| {
7808 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7809 s.move_with(|map, selection| {
7810 if selection.is_empty() {
7811 let cursor = movement::next_subword_end(map, selection.head());
7812 selection.set_head(cursor, SelectionGoal::None);
7813 }
7814 });
7815 });
7816 this.insert("", cx);
7817 });
7818 }
7819
7820 pub fn move_to_beginning_of_line(
7821 &mut self,
7822 action: &MoveToBeginningOfLine,
7823 cx: &mut ViewContext<Self>,
7824 ) {
7825 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7826 s.move_cursors_with(|map, head, _| {
7827 (
7828 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7829 SelectionGoal::None,
7830 )
7831 });
7832 })
7833 }
7834
7835 pub fn select_to_beginning_of_line(
7836 &mut self,
7837 action: &SelectToBeginningOfLine,
7838 cx: &mut ViewContext<Self>,
7839 ) {
7840 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7841 s.move_heads_with(|map, head, _| {
7842 (
7843 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7844 SelectionGoal::None,
7845 )
7846 });
7847 });
7848 }
7849
7850 pub fn delete_to_beginning_of_line(
7851 &mut self,
7852 _: &DeleteToBeginningOfLine,
7853 cx: &mut ViewContext<Self>,
7854 ) {
7855 self.transact(cx, |this, cx| {
7856 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7857 s.move_with(|_, selection| {
7858 selection.reversed = true;
7859 });
7860 });
7861
7862 this.select_to_beginning_of_line(
7863 &SelectToBeginningOfLine {
7864 stop_at_soft_wraps: false,
7865 },
7866 cx,
7867 );
7868 this.backspace(&Backspace, cx);
7869 });
7870 }
7871
7872 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7873 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7874 s.move_cursors_with(|map, head, _| {
7875 (
7876 movement::line_end(map, head, action.stop_at_soft_wraps),
7877 SelectionGoal::None,
7878 )
7879 });
7880 })
7881 }
7882
7883 pub fn select_to_end_of_line(
7884 &mut self,
7885 action: &SelectToEndOfLine,
7886 cx: &mut ViewContext<Self>,
7887 ) {
7888 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7889 s.move_heads_with(|map, head, _| {
7890 (
7891 movement::line_end(map, head, action.stop_at_soft_wraps),
7892 SelectionGoal::None,
7893 )
7894 });
7895 })
7896 }
7897
7898 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7899 self.transact(cx, |this, cx| {
7900 this.select_to_end_of_line(
7901 &SelectToEndOfLine {
7902 stop_at_soft_wraps: false,
7903 },
7904 cx,
7905 );
7906 this.delete(&Delete, cx);
7907 });
7908 }
7909
7910 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7911 self.transact(cx, |this, cx| {
7912 this.select_to_end_of_line(
7913 &SelectToEndOfLine {
7914 stop_at_soft_wraps: false,
7915 },
7916 cx,
7917 );
7918 this.cut(&Cut, cx);
7919 });
7920 }
7921
7922 pub fn move_to_start_of_paragraph(
7923 &mut self,
7924 _: &MoveToStartOfParagraph,
7925 cx: &mut ViewContext<Self>,
7926 ) {
7927 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7928 cx.propagate();
7929 return;
7930 }
7931
7932 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7933 s.move_with(|map, selection| {
7934 selection.collapse_to(
7935 movement::start_of_paragraph(map, selection.head(), 1),
7936 SelectionGoal::None,
7937 )
7938 });
7939 })
7940 }
7941
7942 pub fn move_to_end_of_paragraph(
7943 &mut self,
7944 _: &MoveToEndOfParagraph,
7945 cx: &mut ViewContext<Self>,
7946 ) {
7947 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7948 cx.propagate();
7949 return;
7950 }
7951
7952 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7953 s.move_with(|map, selection| {
7954 selection.collapse_to(
7955 movement::end_of_paragraph(map, selection.head(), 1),
7956 SelectionGoal::None,
7957 )
7958 });
7959 })
7960 }
7961
7962 pub fn select_to_start_of_paragraph(
7963 &mut self,
7964 _: &SelectToStartOfParagraph,
7965 cx: &mut ViewContext<Self>,
7966 ) {
7967 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7968 cx.propagate();
7969 return;
7970 }
7971
7972 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7973 s.move_heads_with(|map, head, _| {
7974 (
7975 movement::start_of_paragraph(map, head, 1),
7976 SelectionGoal::None,
7977 )
7978 });
7979 })
7980 }
7981
7982 pub fn select_to_end_of_paragraph(
7983 &mut self,
7984 _: &SelectToEndOfParagraph,
7985 cx: &mut ViewContext<Self>,
7986 ) {
7987 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7988 cx.propagate();
7989 return;
7990 }
7991
7992 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7993 s.move_heads_with(|map, head, _| {
7994 (
7995 movement::end_of_paragraph(map, head, 1),
7996 SelectionGoal::None,
7997 )
7998 });
7999 })
8000 }
8001
8002 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
8003 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8004 cx.propagate();
8005 return;
8006 }
8007
8008 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8009 s.select_ranges(vec![0..0]);
8010 });
8011 }
8012
8013 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
8014 let mut selection = self.selections.last::<Point>(cx);
8015 selection.set_head(Point::zero(), SelectionGoal::None);
8016
8017 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8018 s.select(vec![selection]);
8019 });
8020 }
8021
8022 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
8023 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8024 cx.propagate();
8025 return;
8026 }
8027
8028 let cursor = self.buffer.read(cx).read(cx).len();
8029 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8030 s.select_ranges(vec![cursor..cursor])
8031 });
8032 }
8033
8034 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8035 self.nav_history = nav_history;
8036 }
8037
8038 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8039 self.nav_history.as_ref()
8040 }
8041
8042 fn push_to_nav_history(
8043 &mut self,
8044 cursor_anchor: Anchor,
8045 new_position: Option<Point>,
8046 cx: &mut ViewContext<Self>,
8047 ) {
8048 if let Some(nav_history) = self.nav_history.as_mut() {
8049 let buffer = self.buffer.read(cx).read(cx);
8050 let cursor_position = cursor_anchor.to_point(&buffer);
8051 let scroll_state = self.scroll_manager.anchor();
8052 let scroll_top_row = scroll_state.top_row(&buffer);
8053 drop(buffer);
8054
8055 if let Some(new_position) = new_position {
8056 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8057 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8058 return;
8059 }
8060 }
8061
8062 nav_history.push(
8063 Some(NavigationData {
8064 cursor_anchor,
8065 cursor_position,
8066 scroll_anchor: scroll_state,
8067 scroll_top_row,
8068 }),
8069 cx,
8070 );
8071 }
8072 }
8073
8074 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8075 let buffer = self.buffer.read(cx).snapshot(cx);
8076 let mut selection = self.selections.first::<usize>(cx);
8077 selection.set_head(buffer.len(), SelectionGoal::None);
8078 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8079 s.select(vec![selection]);
8080 });
8081 }
8082
8083 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8084 let end = self.buffer.read(cx).read(cx).len();
8085 self.change_selections(None, cx, |s| {
8086 s.select_ranges(vec![0..end]);
8087 });
8088 }
8089
8090 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8091 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8092 let mut selections = self.selections.all::<Point>(cx);
8093 let max_point = display_map.buffer_snapshot.max_point();
8094 for selection in &mut selections {
8095 let rows = selection.spanned_rows(true, &display_map);
8096 selection.start = Point::new(rows.start.0, 0);
8097 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8098 selection.reversed = false;
8099 }
8100 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8101 s.select(selections);
8102 });
8103 }
8104
8105 pub fn split_selection_into_lines(
8106 &mut self,
8107 _: &SplitSelectionIntoLines,
8108 cx: &mut ViewContext<Self>,
8109 ) {
8110 let mut to_unfold = Vec::new();
8111 let mut new_selection_ranges = Vec::new();
8112 {
8113 let selections = self.selections.all::<Point>(cx);
8114 let buffer = self.buffer.read(cx).read(cx);
8115 for selection in selections {
8116 for row in selection.start.row..selection.end.row {
8117 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8118 new_selection_ranges.push(cursor..cursor);
8119 }
8120 new_selection_ranges.push(selection.end..selection.end);
8121 to_unfold.push(selection.start..selection.end);
8122 }
8123 }
8124 self.unfold_ranges(to_unfold, true, true, cx);
8125 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8126 s.select_ranges(new_selection_ranges);
8127 });
8128 }
8129
8130 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8131 self.add_selection(true, cx);
8132 }
8133
8134 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8135 self.add_selection(false, cx);
8136 }
8137
8138 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8139 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8140 let mut selections = self.selections.all::<Point>(cx);
8141 let text_layout_details = self.text_layout_details(cx);
8142 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8143 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8144 let range = oldest_selection.display_range(&display_map).sorted();
8145
8146 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8147 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8148 let positions = start_x.min(end_x)..start_x.max(end_x);
8149
8150 selections.clear();
8151 let mut stack = Vec::new();
8152 for row in range.start.row().0..=range.end.row().0 {
8153 if let Some(selection) = self.selections.build_columnar_selection(
8154 &display_map,
8155 DisplayRow(row),
8156 &positions,
8157 oldest_selection.reversed,
8158 &text_layout_details,
8159 ) {
8160 stack.push(selection.id);
8161 selections.push(selection);
8162 }
8163 }
8164
8165 if above {
8166 stack.reverse();
8167 }
8168
8169 AddSelectionsState { above, stack }
8170 });
8171
8172 let last_added_selection = *state.stack.last().unwrap();
8173 let mut new_selections = Vec::new();
8174 if above == state.above {
8175 let end_row = if above {
8176 DisplayRow(0)
8177 } else {
8178 display_map.max_point().row()
8179 };
8180
8181 'outer: for selection in selections {
8182 if selection.id == last_added_selection {
8183 let range = selection.display_range(&display_map).sorted();
8184 debug_assert_eq!(range.start.row(), range.end.row());
8185 let mut row = range.start.row();
8186 let positions =
8187 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8188 px(start)..px(end)
8189 } else {
8190 let start_x =
8191 display_map.x_for_display_point(range.start, &text_layout_details);
8192 let end_x =
8193 display_map.x_for_display_point(range.end, &text_layout_details);
8194 start_x.min(end_x)..start_x.max(end_x)
8195 };
8196
8197 while row != end_row {
8198 if above {
8199 row.0 -= 1;
8200 } else {
8201 row.0 += 1;
8202 }
8203
8204 if let Some(new_selection) = self.selections.build_columnar_selection(
8205 &display_map,
8206 row,
8207 &positions,
8208 selection.reversed,
8209 &text_layout_details,
8210 ) {
8211 state.stack.push(new_selection.id);
8212 if above {
8213 new_selections.push(new_selection);
8214 new_selections.push(selection);
8215 } else {
8216 new_selections.push(selection);
8217 new_selections.push(new_selection);
8218 }
8219
8220 continue 'outer;
8221 }
8222 }
8223 }
8224
8225 new_selections.push(selection);
8226 }
8227 } else {
8228 new_selections = selections;
8229 new_selections.retain(|s| s.id != last_added_selection);
8230 state.stack.pop();
8231 }
8232
8233 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8234 s.select(new_selections);
8235 });
8236 if state.stack.len() > 1 {
8237 self.add_selections_state = Some(state);
8238 }
8239 }
8240
8241 pub fn select_next_match_internal(
8242 &mut self,
8243 display_map: &DisplaySnapshot,
8244 replace_newest: bool,
8245 autoscroll: Option<Autoscroll>,
8246 cx: &mut ViewContext<Self>,
8247 ) -> Result<()> {
8248 fn select_next_match_ranges(
8249 this: &mut Editor,
8250 range: Range<usize>,
8251 replace_newest: bool,
8252 auto_scroll: Option<Autoscroll>,
8253 cx: &mut ViewContext<Editor>,
8254 ) {
8255 this.unfold_ranges([range.clone()], false, true, cx);
8256 this.change_selections(auto_scroll, cx, |s| {
8257 if replace_newest {
8258 s.delete(s.newest_anchor().id);
8259 }
8260 s.insert_range(range.clone());
8261 });
8262 }
8263
8264 let buffer = &display_map.buffer_snapshot;
8265 let mut selections = self.selections.all::<usize>(cx);
8266 if let Some(mut select_next_state) = self.select_next_state.take() {
8267 let query = &select_next_state.query;
8268 if !select_next_state.done {
8269 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8270 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8271 let mut next_selected_range = None;
8272
8273 let bytes_after_last_selection =
8274 buffer.bytes_in_range(last_selection.end..buffer.len());
8275 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8276 let query_matches = query
8277 .stream_find_iter(bytes_after_last_selection)
8278 .map(|result| (last_selection.end, result))
8279 .chain(
8280 query
8281 .stream_find_iter(bytes_before_first_selection)
8282 .map(|result| (0, result)),
8283 );
8284
8285 for (start_offset, query_match) in query_matches {
8286 let query_match = query_match.unwrap(); // can only fail due to I/O
8287 let offset_range =
8288 start_offset + query_match.start()..start_offset + query_match.end();
8289 let display_range = offset_range.start.to_display_point(display_map)
8290 ..offset_range.end.to_display_point(display_map);
8291
8292 if !select_next_state.wordwise
8293 || (!movement::is_inside_word(display_map, display_range.start)
8294 && !movement::is_inside_word(display_map, display_range.end))
8295 {
8296 // TODO: This is n^2, because we might check all the selections
8297 if !selections
8298 .iter()
8299 .any(|selection| selection.range().overlaps(&offset_range))
8300 {
8301 next_selected_range = Some(offset_range);
8302 break;
8303 }
8304 }
8305 }
8306
8307 if let Some(next_selected_range) = next_selected_range {
8308 select_next_match_ranges(
8309 self,
8310 next_selected_range,
8311 replace_newest,
8312 autoscroll,
8313 cx,
8314 );
8315 } else {
8316 select_next_state.done = true;
8317 }
8318 }
8319
8320 self.select_next_state = Some(select_next_state);
8321 } else {
8322 let mut only_carets = true;
8323 let mut same_text_selected = true;
8324 let mut selected_text = None;
8325
8326 let mut selections_iter = selections.iter().peekable();
8327 while let Some(selection) = selections_iter.next() {
8328 if selection.start != selection.end {
8329 only_carets = false;
8330 }
8331
8332 if same_text_selected {
8333 if selected_text.is_none() {
8334 selected_text =
8335 Some(buffer.text_for_range(selection.range()).collect::<String>());
8336 }
8337
8338 if let Some(next_selection) = selections_iter.peek() {
8339 if next_selection.range().len() == selection.range().len() {
8340 let next_selected_text = buffer
8341 .text_for_range(next_selection.range())
8342 .collect::<String>();
8343 if Some(next_selected_text) != selected_text {
8344 same_text_selected = false;
8345 selected_text = None;
8346 }
8347 } else {
8348 same_text_selected = false;
8349 selected_text = None;
8350 }
8351 }
8352 }
8353 }
8354
8355 if only_carets {
8356 for selection in &mut selections {
8357 let word_range = movement::surrounding_word(
8358 display_map,
8359 selection.start.to_display_point(display_map),
8360 );
8361 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8362 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8363 selection.goal = SelectionGoal::None;
8364 selection.reversed = false;
8365 select_next_match_ranges(
8366 self,
8367 selection.start..selection.end,
8368 replace_newest,
8369 autoscroll,
8370 cx,
8371 );
8372 }
8373
8374 if selections.len() == 1 {
8375 let selection = selections
8376 .last()
8377 .expect("ensured that there's only one selection");
8378 let query = buffer
8379 .text_for_range(selection.start..selection.end)
8380 .collect::<String>();
8381 let is_empty = query.is_empty();
8382 let select_state = SelectNextState {
8383 query: AhoCorasick::new(&[query])?,
8384 wordwise: true,
8385 done: is_empty,
8386 };
8387 self.select_next_state = Some(select_state);
8388 } else {
8389 self.select_next_state = None;
8390 }
8391 } else if let Some(selected_text) = selected_text {
8392 self.select_next_state = Some(SelectNextState {
8393 query: AhoCorasick::new(&[selected_text])?,
8394 wordwise: false,
8395 done: false,
8396 });
8397 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8398 }
8399 }
8400 Ok(())
8401 }
8402
8403 pub fn select_all_matches(
8404 &mut self,
8405 _action: &SelectAllMatches,
8406 cx: &mut ViewContext<Self>,
8407 ) -> Result<()> {
8408 self.push_to_selection_history();
8409 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8410
8411 self.select_next_match_internal(&display_map, false, None, cx)?;
8412 let Some(select_next_state) = self.select_next_state.as_mut() else {
8413 return Ok(());
8414 };
8415 if select_next_state.done {
8416 return Ok(());
8417 }
8418
8419 let mut new_selections = self.selections.all::<usize>(cx);
8420
8421 let buffer = &display_map.buffer_snapshot;
8422 let query_matches = select_next_state
8423 .query
8424 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8425
8426 for query_match in query_matches {
8427 let query_match = query_match.unwrap(); // can only fail due to I/O
8428 let offset_range = query_match.start()..query_match.end();
8429 let display_range = offset_range.start.to_display_point(&display_map)
8430 ..offset_range.end.to_display_point(&display_map);
8431
8432 if !select_next_state.wordwise
8433 || (!movement::is_inside_word(&display_map, display_range.start)
8434 && !movement::is_inside_word(&display_map, display_range.end))
8435 {
8436 self.selections.change_with(cx, |selections| {
8437 new_selections.push(Selection {
8438 id: selections.new_selection_id(),
8439 start: offset_range.start,
8440 end: offset_range.end,
8441 reversed: false,
8442 goal: SelectionGoal::None,
8443 });
8444 });
8445 }
8446 }
8447
8448 new_selections.sort_by_key(|selection| selection.start);
8449 let mut ix = 0;
8450 while ix + 1 < new_selections.len() {
8451 let current_selection = &new_selections[ix];
8452 let next_selection = &new_selections[ix + 1];
8453 if current_selection.range().overlaps(&next_selection.range()) {
8454 if current_selection.id < next_selection.id {
8455 new_selections.remove(ix + 1);
8456 } else {
8457 new_selections.remove(ix);
8458 }
8459 } else {
8460 ix += 1;
8461 }
8462 }
8463
8464 select_next_state.done = true;
8465 self.unfold_ranges(
8466 new_selections.iter().map(|selection| selection.range()),
8467 false,
8468 false,
8469 cx,
8470 );
8471 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8472 selections.select(new_selections)
8473 });
8474
8475 Ok(())
8476 }
8477
8478 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8479 self.push_to_selection_history();
8480 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8481 self.select_next_match_internal(
8482 &display_map,
8483 action.replace_newest,
8484 Some(Autoscroll::newest()),
8485 cx,
8486 )?;
8487 Ok(())
8488 }
8489
8490 pub fn select_previous(
8491 &mut self,
8492 action: &SelectPrevious,
8493 cx: &mut ViewContext<Self>,
8494 ) -> Result<()> {
8495 self.push_to_selection_history();
8496 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8497 let buffer = &display_map.buffer_snapshot;
8498 let mut selections = self.selections.all::<usize>(cx);
8499 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8500 let query = &select_prev_state.query;
8501 if !select_prev_state.done {
8502 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8503 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8504 let mut next_selected_range = None;
8505 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8506 let bytes_before_last_selection =
8507 buffer.reversed_bytes_in_range(0..last_selection.start);
8508 let bytes_after_first_selection =
8509 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8510 let query_matches = query
8511 .stream_find_iter(bytes_before_last_selection)
8512 .map(|result| (last_selection.start, result))
8513 .chain(
8514 query
8515 .stream_find_iter(bytes_after_first_selection)
8516 .map(|result| (buffer.len(), result)),
8517 );
8518 for (end_offset, query_match) in query_matches {
8519 let query_match = query_match.unwrap(); // can only fail due to I/O
8520 let offset_range =
8521 end_offset - query_match.end()..end_offset - query_match.start();
8522 let display_range = offset_range.start.to_display_point(&display_map)
8523 ..offset_range.end.to_display_point(&display_map);
8524
8525 if !select_prev_state.wordwise
8526 || (!movement::is_inside_word(&display_map, display_range.start)
8527 && !movement::is_inside_word(&display_map, display_range.end))
8528 {
8529 next_selected_range = Some(offset_range);
8530 break;
8531 }
8532 }
8533
8534 if let Some(next_selected_range) = next_selected_range {
8535 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
8536 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8537 if action.replace_newest {
8538 s.delete(s.newest_anchor().id);
8539 }
8540 s.insert_range(next_selected_range);
8541 });
8542 } else {
8543 select_prev_state.done = true;
8544 }
8545 }
8546
8547 self.select_prev_state = Some(select_prev_state);
8548 } else {
8549 let mut only_carets = true;
8550 let mut same_text_selected = true;
8551 let mut selected_text = None;
8552
8553 let mut selections_iter = selections.iter().peekable();
8554 while let Some(selection) = selections_iter.next() {
8555 if selection.start != selection.end {
8556 only_carets = false;
8557 }
8558
8559 if same_text_selected {
8560 if selected_text.is_none() {
8561 selected_text =
8562 Some(buffer.text_for_range(selection.range()).collect::<String>());
8563 }
8564
8565 if let Some(next_selection) = selections_iter.peek() {
8566 if next_selection.range().len() == selection.range().len() {
8567 let next_selected_text = buffer
8568 .text_for_range(next_selection.range())
8569 .collect::<String>();
8570 if Some(next_selected_text) != selected_text {
8571 same_text_selected = false;
8572 selected_text = None;
8573 }
8574 } else {
8575 same_text_selected = false;
8576 selected_text = None;
8577 }
8578 }
8579 }
8580 }
8581
8582 if only_carets {
8583 for selection in &mut selections {
8584 let word_range = movement::surrounding_word(
8585 &display_map,
8586 selection.start.to_display_point(&display_map),
8587 );
8588 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8589 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8590 selection.goal = SelectionGoal::None;
8591 selection.reversed = false;
8592 }
8593 if selections.len() == 1 {
8594 let selection = selections
8595 .last()
8596 .expect("ensured that there's only one selection");
8597 let query = buffer
8598 .text_for_range(selection.start..selection.end)
8599 .collect::<String>();
8600 let is_empty = query.is_empty();
8601 let select_state = SelectNextState {
8602 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8603 wordwise: true,
8604 done: is_empty,
8605 };
8606 self.select_prev_state = Some(select_state);
8607 } else {
8608 self.select_prev_state = None;
8609 }
8610
8611 self.unfold_ranges(
8612 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8613 false,
8614 true,
8615 cx,
8616 );
8617 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8618 s.select(selections);
8619 });
8620 } else if let Some(selected_text) = selected_text {
8621 self.select_prev_state = Some(SelectNextState {
8622 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8623 wordwise: false,
8624 done: false,
8625 });
8626 self.select_previous(action, cx)?;
8627 }
8628 }
8629 Ok(())
8630 }
8631
8632 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8633 let text_layout_details = &self.text_layout_details(cx);
8634 self.transact(cx, |this, cx| {
8635 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8636 let mut edits = Vec::new();
8637 let mut selection_edit_ranges = Vec::new();
8638 let mut last_toggled_row = None;
8639 let snapshot = this.buffer.read(cx).read(cx);
8640 let empty_str: Arc<str> = Arc::default();
8641 let mut suffixes_inserted = Vec::new();
8642
8643 fn comment_prefix_range(
8644 snapshot: &MultiBufferSnapshot,
8645 row: MultiBufferRow,
8646 comment_prefix: &str,
8647 comment_prefix_whitespace: &str,
8648 ) -> Range<Point> {
8649 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
8650
8651 let mut line_bytes = snapshot
8652 .bytes_in_range(start..snapshot.max_point())
8653 .flatten()
8654 .copied();
8655
8656 // If this line currently begins with the line comment prefix, then record
8657 // the range containing the prefix.
8658 if line_bytes
8659 .by_ref()
8660 .take(comment_prefix.len())
8661 .eq(comment_prefix.bytes())
8662 {
8663 // Include any whitespace that matches the comment prefix.
8664 let matching_whitespace_len = line_bytes
8665 .zip(comment_prefix_whitespace.bytes())
8666 .take_while(|(a, b)| a == b)
8667 .count() as u32;
8668 let end = Point::new(
8669 start.row,
8670 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8671 );
8672 start..end
8673 } else {
8674 start..start
8675 }
8676 }
8677
8678 fn comment_suffix_range(
8679 snapshot: &MultiBufferSnapshot,
8680 row: MultiBufferRow,
8681 comment_suffix: &str,
8682 comment_suffix_has_leading_space: bool,
8683 ) -> Range<Point> {
8684 let end = Point::new(row.0, snapshot.line_len(row));
8685 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8686
8687 let mut line_end_bytes = snapshot
8688 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8689 .flatten()
8690 .copied();
8691
8692 let leading_space_len = if suffix_start_column > 0
8693 && line_end_bytes.next() == Some(b' ')
8694 && comment_suffix_has_leading_space
8695 {
8696 1
8697 } else {
8698 0
8699 };
8700
8701 // If this line currently begins with the line comment prefix, then record
8702 // the range containing the prefix.
8703 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8704 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8705 start..end
8706 } else {
8707 end..end
8708 }
8709 }
8710
8711 // TODO: Handle selections that cross excerpts
8712 for selection in &mut selections {
8713 let start_column = snapshot
8714 .indent_size_for_line(MultiBufferRow(selection.start.row))
8715 .len;
8716 let language = if let Some(language) =
8717 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8718 {
8719 language
8720 } else {
8721 continue;
8722 };
8723
8724 selection_edit_ranges.clear();
8725
8726 // If multiple selections contain a given row, avoid processing that
8727 // row more than once.
8728 let mut start_row = MultiBufferRow(selection.start.row);
8729 if last_toggled_row == Some(start_row) {
8730 start_row = start_row.next_row();
8731 }
8732 let end_row =
8733 if selection.end.row > selection.start.row && selection.end.column == 0 {
8734 MultiBufferRow(selection.end.row - 1)
8735 } else {
8736 MultiBufferRow(selection.end.row)
8737 };
8738 last_toggled_row = Some(end_row);
8739
8740 if start_row > end_row {
8741 continue;
8742 }
8743
8744 // If the language has line comments, toggle those.
8745 let full_comment_prefixes = language.line_comment_prefixes();
8746 if !full_comment_prefixes.is_empty() {
8747 let first_prefix = full_comment_prefixes
8748 .first()
8749 .expect("prefixes is non-empty");
8750 let prefix_trimmed_lengths = full_comment_prefixes
8751 .iter()
8752 .map(|p| p.trim_end_matches(' ').len())
8753 .collect::<SmallVec<[usize; 4]>>();
8754
8755 let mut all_selection_lines_are_comments = true;
8756
8757 for row in start_row.0..=end_row.0 {
8758 let row = MultiBufferRow(row);
8759 if start_row < end_row && snapshot.is_line_blank(row) {
8760 continue;
8761 }
8762
8763 let prefix_range = full_comment_prefixes
8764 .iter()
8765 .zip(prefix_trimmed_lengths.iter().copied())
8766 .map(|(prefix, trimmed_prefix_len)| {
8767 comment_prefix_range(
8768 snapshot.deref(),
8769 row,
8770 &prefix[..trimmed_prefix_len],
8771 &prefix[trimmed_prefix_len..],
8772 )
8773 })
8774 .max_by_key(|range| range.end.column - range.start.column)
8775 .expect("prefixes is non-empty");
8776
8777 if prefix_range.is_empty() {
8778 all_selection_lines_are_comments = false;
8779 }
8780
8781 selection_edit_ranges.push(prefix_range);
8782 }
8783
8784 if all_selection_lines_are_comments {
8785 edits.extend(
8786 selection_edit_ranges
8787 .iter()
8788 .cloned()
8789 .map(|range| (range, empty_str.clone())),
8790 );
8791 } else {
8792 let min_column = selection_edit_ranges
8793 .iter()
8794 .map(|range| range.start.column)
8795 .min()
8796 .unwrap_or(0);
8797 edits.extend(selection_edit_ranges.iter().map(|range| {
8798 let position = Point::new(range.start.row, min_column);
8799 (position..position, first_prefix.clone())
8800 }));
8801 }
8802 } else if let Some((full_comment_prefix, comment_suffix)) =
8803 language.block_comment_delimiters()
8804 {
8805 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8806 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8807 let prefix_range = comment_prefix_range(
8808 snapshot.deref(),
8809 start_row,
8810 comment_prefix,
8811 comment_prefix_whitespace,
8812 );
8813 let suffix_range = comment_suffix_range(
8814 snapshot.deref(),
8815 end_row,
8816 comment_suffix.trim_start_matches(' '),
8817 comment_suffix.starts_with(' '),
8818 );
8819
8820 if prefix_range.is_empty() || suffix_range.is_empty() {
8821 edits.push((
8822 prefix_range.start..prefix_range.start,
8823 full_comment_prefix.clone(),
8824 ));
8825 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8826 suffixes_inserted.push((end_row, comment_suffix.len()));
8827 } else {
8828 edits.push((prefix_range, empty_str.clone()));
8829 edits.push((suffix_range, empty_str.clone()));
8830 }
8831 } else {
8832 continue;
8833 }
8834 }
8835
8836 drop(snapshot);
8837 this.buffer.update(cx, |buffer, cx| {
8838 buffer.edit(edits, None, cx);
8839 });
8840
8841 // Adjust selections so that they end before any comment suffixes that
8842 // were inserted.
8843 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8844 let mut selections = this.selections.all::<Point>(cx);
8845 let snapshot = this.buffer.read(cx).read(cx);
8846 for selection in &mut selections {
8847 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8848 match row.cmp(&MultiBufferRow(selection.end.row)) {
8849 Ordering::Less => {
8850 suffixes_inserted.next();
8851 continue;
8852 }
8853 Ordering::Greater => break,
8854 Ordering::Equal => {
8855 if selection.end.column == snapshot.line_len(row) {
8856 if selection.is_empty() {
8857 selection.start.column -= suffix_len as u32;
8858 }
8859 selection.end.column -= suffix_len as u32;
8860 }
8861 break;
8862 }
8863 }
8864 }
8865 }
8866
8867 drop(snapshot);
8868 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8869
8870 let selections = this.selections.all::<Point>(cx);
8871 let selections_on_single_row = selections.windows(2).all(|selections| {
8872 selections[0].start.row == selections[1].start.row
8873 && selections[0].end.row == selections[1].end.row
8874 && selections[0].start.row == selections[0].end.row
8875 });
8876 let selections_selecting = selections
8877 .iter()
8878 .any(|selection| selection.start != selection.end);
8879 let advance_downwards = action.advance_downwards
8880 && selections_on_single_row
8881 && !selections_selecting
8882 && !matches!(this.mode, EditorMode::SingleLine { .. });
8883
8884 if advance_downwards {
8885 let snapshot = this.buffer.read(cx).snapshot(cx);
8886
8887 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8888 s.move_cursors_with(|display_snapshot, display_point, _| {
8889 let mut point = display_point.to_point(display_snapshot);
8890 point.row += 1;
8891 point = snapshot.clip_point(point, Bias::Left);
8892 let display_point = point.to_display_point(display_snapshot);
8893 let goal = SelectionGoal::HorizontalPosition(
8894 display_snapshot
8895 .x_for_display_point(display_point, text_layout_details)
8896 .into(),
8897 );
8898 (display_point, goal)
8899 })
8900 });
8901 }
8902 });
8903 }
8904
8905 pub fn select_enclosing_symbol(
8906 &mut self,
8907 _: &SelectEnclosingSymbol,
8908 cx: &mut ViewContext<Self>,
8909 ) {
8910 let buffer = self.buffer.read(cx).snapshot(cx);
8911 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8912
8913 fn update_selection(
8914 selection: &Selection<usize>,
8915 buffer_snap: &MultiBufferSnapshot,
8916 ) -> Option<Selection<usize>> {
8917 let cursor = selection.head();
8918 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8919 for symbol in symbols.iter().rev() {
8920 let start = symbol.range.start.to_offset(buffer_snap);
8921 let end = symbol.range.end.to_offset(buffer_snap);
8922 let new_range = start..end;
8923 if start < selection.start || end > selection.end {
8924 return Some(Selection {
8925 id: selection.id,
8926 start: new_range.start,
8927 end: new_range.end,
8928 goal: SelectionGoal::None,
8929 reversed: selection.reversed,
8930 });
8931 }
8932 }
8933 None
8934 }
8935
8936 let mut selected_larger_symbol = false;
8937 let new_selections = old_selections
8938 .iter()
8939 .map(|selection| match update_selection(selection, &buffer) {
8940 Some(new_selection) => {
8941 if new_selection.range() != selection.range() {
8942 selected_larger_symbol = true;
8943 }
8944 new_selection
8945 }
8946 None => selection.clone(),
8947 })
8948 .collect::<Vec<_>>();
8949
8950 if selected_larger_symbol {
8951 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8952 s.select(new_selections);
8953 });
8954 }
8955 }
8956
8957 pub fn select_larger_syntax_node(
8958 &mut self,
8959 _: &SelectLargerSyntaxNode,
8960 cx: &mut ViewContext<Self>,
8961 ) {
8962 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8963 let buffer = self.buffer.read(cx).snapshot(cx);
8964 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8965
8966 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8967 let mut selected_larger_node = false;
8968 let new_selections = old_selections
8969 .iter()
8970 .map(|selection| {
8971 let old_range = selection.start..selection.end;
8972 let mut new_range = old_range.clone();
8973 while let Some(containing_range) =
8974 buffer.range_for_syntax_ancestor(new_range.clone())
8975 {
8976 new_range = containing_range;
8977 if !display_map.intersects_fold(new_range.start)
8978 && !display_map.intersects_fold(new_range.end)
8979 {
8980 break;
8981 }
8982 }
8983
8984 selected_larger_node |= new_range != old_range;
8985 Selection {
8986 id: selection.id,
8987 start: new_range.start,
8988 end: new_range.end,
8989 goal: SelectionGoal::None,
8990 reversed: selection.reversed,
8991 }
8992 })
8993 .collect::<Vec<_>>();
8994
8995 if selected_larger_node {
8996 stack.push(old_selections);
8997 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8998 s.select(new_selections);
8999 });
9000 }
9001 self.select_larger_syntax_node_stack = stack;
9002 }
9003
9004 pub fn select_smaller_syntax_node(
9005 &mut self,
9006 _: &SelectSmallerSyntaxNode,
9007 cx: &mut ViewContext<Self>,
9008 ) {
9009 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9010 if let Some(selections) = stack.pop() {
9011 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9012 s.select(selections.to_vec());
9013 });
9014 }
9015 self.select_larger_syntax_node_stack = stack;
9016 }
9017
9018 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9019 if !EditorSettings::get_global(cx).gutter.runnables {
9020 self.clear_tasks();
9021 return Task::ready(());
9022 }
9023 let project = self.project.clone();
9024 cx.spawn(|this, mut cx| async move {
9025 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9026 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9027 }) else {
9028 return;
9029 };
9030
9031 let Some(project) = project else {
9032 return;
9033 };
9034
9035 let hide_runnables = project
9036 .update(&mut cx, |project, cx| {
9037 // Do not display any test indicators in non-dev server remote projects.
9038 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9039 })
9040 .unwrap_or(true);
9041 if hide_runnables {
9042 return;
9043 }
9044 let new_rows =
9045 cx.background_executor()
9046 .spawn({
9047 let snapshot = display_snapshot.clone();
9048 async move {
9049 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9050 }
9051 })
9052 .await;
9053 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9054
9055 this.update(&mut cx, |this, _| {
9056 this.clear_tasks();
9057 for (key, value) in rows {
9058 this.insert_tasks(key, value);
9059 }
9060 })
9061 .ok();
9062 })
9063 }
9064 fn fetch_runnable_ranges(
9065 snapshot: &DisplaySnapshot,
9066 range: Range<Anchor>,
9067 ) -> Vec<language::RunnableRange> {
9068 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9069 }
9070
9071 fn runnable_rows(
9072 project: Model<Project>,
9073 snapshot: DisplaySnapshot,
9074 runnable_ranges: Vec<RunnableRange>,
9075 mut cx: AsyncWindowContext,
9076 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9077 runnable_ranges
9078 .into_iter()
9079 .filter_map(|mut runnable| {
9080 let tasks = cx
9081 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9082 .ok()?;
9083 if tasks.is_empty() {
9084 return None;
9085 }
9086
9087 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9088
9089 let row = snapshot
9090 .buffer_snapshot
9091 .buffer_line_for_row(MultiBufferRow(point.row))?
9092 .1
9093 .start
9094 .row;
9095
9096 let context_range =
9097 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9098 Some((
9099 (runnable.buffer_id, row),
9100 RunnableTasks {
9101 templates: tasks,
9102 offset: MultiBufferOffset(runnable.run_range.start),
9103 context_range,
9104 column: point.column,
9105 extra_variables: runnable.extra_captures,
9106 },
9107 ))
9108 })
9109 .collect()
9110 }
9111
9112 fn templates_with_tags(
9113 project: &Model<Project>,
9114 runnable: &mut Runnable,
9115 cx: &WindowContext<'_>,
9116 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9117 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9118 let (worktree_id, file) = project
9119 .buffer_for_id(runnable.buffer, cx)
9120 .and_then(|buffer| buffer.read(cx).file())
9121 .map(|file| (file.worktree_id(cx), file.clone()))
9122 .unzip();
9123
9124 (project.task_inventory().clone(), worktree_id, file)
9125 });
9126
9127 let inventory = inventory.read(cx);
9128 let tags = mem::take(&mut runnable.tags);
9129 let mut tags: Vec<_> = tags
9130 .into_iter()
9131 .flat_map(|tag| {
9132 let tag = tag.0.clone();
9133 inventory
9134 .list_tasks(
9135 file.clone(),
9136 Some(runnable.language.clone()),
9137 worktree_id,
9138 cx,
9139 )
9140 .into_iter()
9141 .filter(move |(_, template)| {
9142 template.tags.iter().any(|source_tag| source_tag == &tag)
9143 })
9144 })
9145 .sorted_by_key(|(kind, _)| kind.to_owned())
9146 .collect();
9147 if let Some((leading_tag_source, _)) = tags.first() {
9148 // Strongest source wins; if we have worktree tag binding, prefer that to
9149 // global and language bindings;
9150 // if we have a global binding, prefer that to language binding.
9151 let first_mismatch = tags
9152 .iter()
9153 .position(|(tag_source, _)| tag_source != leading_tag_source);
9154 if let Some(index) = first_mismatch {
9155 tags.truncate(index);
9156 }
9157 }
9158
9159 tags
9160 }
9161
9162 pub fn move_to_enclosing_bracket(
9163 &mut self,
9164 _: &MoveToEnclosingBracket,
9165 cx: &mut ViewContext<Self>,
9166 ) {
9167 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9168 s.move_offsets_with(|snapshot, selection| {
9169 let Some(enclosing_bracket_ranges) =
9170 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9171 else {
9172 return;
9173 };
9174
9175 let mut best_length = usize::MAX;
9176 let mut best_inside = false;
9177 let mut best_in_bracket_range = false;
9178 let mut best_destination = None;
9179 for (open, close) in enclosing_bracket_ranges {
9180 let close = close.to_inclusive();
9181 let length = close.end() - open.start;
9182 let inside = selection.start >= open.end && selection.end <= *close.start();
9183 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9184 || close.contains(&selection.head());
9185
9186 // If best is next to a bracket and current isn't, skip
9187 if !in_bracket_range && best_in_bracket_range {
9188 continue;
9189 }
9190
9191 // Prefer smaller lengths unless best is inside and current isn't
9192 if length > best_length && (best_inside || !inside) {
9193 continue;
9194 }
9195
9196 best_length = length;
9197 best_inside = inside;
9198 best_in_bracket_range = in_bracket_range;
9199 best_destination = Some(
9200 if close.contains(&selection.start) && close.contains(&selection.end) {
9201 if inside {
9202 open.end
9203 } else {
9204 open.start
9205 }
9206 } else if inside {
9207 *close.start()
9208 } else {
9209 *close.end()
9210 },
9211 );
9212 }
9213
9214 if let Some(destination) = best_destination {
9215 selection.collapse_to(destination, SelectionGoal::None);
9216 }
9217 })
9218 });
9219 }
9220
9221 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9222 self.end_selection(cx);
9223 self.selection_history.mode = SelectionHistoryMode::Undoing;
9224 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9225 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9226 self.select_next_state = entry.select_next_state;
9227 self.select_prev_state = entry.select_prev_state;
9228 self.add_selections_state = entry.add_selections_state;
9229 self.request_autoscroll(Autoscroll::newest(), cx);
9230 }
9231 self.selection_history.mode = SelectionHistoryMode::Normal;
9232 }
9233
9234 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9235 self.end_selection(cx);
9236 self.selection_history.mode = SelectionHistoryMode::Redoing;
9237 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9238 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9239 self.select_next_state = entry.select_next_state;
9240 self.select_prev_state = entry.select_prev_state;
9241 self.add_selections_state = entry.add_selections_state;
9242 self.request_autoscroll(Autoscroll::newest(), cx);
9243 }
9244 self.selection_history.mode = SelectionHistoryMode::Normal;
9245 }
9246
9247 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9248 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9249 }
9250
9251 pub fn expand_excerpts_down(
9252 &mut self,
9253 action: &ExpandExcerptsDown,
9254 cx: &mut ViewContext<Self>,
9255 ) {
9256 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9257 }
9258
9259 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9260 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9261 }
9262
9263 pub fn expand_excerpts_for_direction(
9264 &mut self,
9265 lines: u32,
9266 direction: ExpandExcerptDirection,
9267 cx: &mut ViewContext<Self>,
9268 ) {
9269 let selections = self.selections.disjoint_anchors();
9270
9271 let lines = if lines == 0 {
9272 EditorSettings::get_global(cx).expand_excerpt_lines
9273 } else {
9274 lines
9275 };
9276
9277 self.buffer.update(cx, |buffer, cx| {
9278 buffer.expand_excerpts(
9279 selections
9280 .iter()
9281 .map(|selection| selection.head().excerpt_id)
9282 .dedup(),
9283 lines,
9284 direction,
9285 cx,
9286 )
9287 })
9288 }
9289
9290 pub fn expand_excerpt(
9291 &mut self,
9292 excerpt: ExcerptId,
9293 direction: ExpandExcerptDirection,
9294 cx: &mut ViewContext<Self>,
9295 ) {
9296 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9297 self.buffer.update(cx, |buffer, cx| {
9298 buffer.expand_excerpts([excerpt], lines, direction, cx)
9299 })
9300 }
9301
9302 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9303 self.go_to_diagnostic_impl(Direction::Next, cx)
9304 }
9305
9306 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9307 self.go_to_diagnostic_impl(Direction::Prev, cx)
9308 }
9309
9310 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9311 let buffer = self.buffer.read(cx).snapshot(cx);
9312 let selection = self.selections.newest::<usize>(cx);
9313
9314 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9315 if direction == Direction::Next {
9316 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9317 let (group_id, jump_to) = popover.activation_info();
9318 if self.activate_diagnostics(group_id, cx) {
9319 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9320 let mut new_selection = s.newest_anchor().clone();
9321 new_selection.collapse_to(jump_to, SelectionGoal::None);
9322 s.select_anchors(vec![new_selection.clone()]);
9323 });
9324 }
9325 return;
9326 }
9327 }
9328
9329 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9330 active_diagnostics
9331 .primary_range
9332 .to_offset(&buffer)
9333 .to_inclusive()
9334 });
9335 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9336 if active_primary_range.contains(&selection.head()) {
9337 *active_primary_range.start()
9338 } else {
9339 selection.head()
9340 }
9341 } else {
9342 selection.head()
9343 };
9344 let snapshot = self.snapshot(cx);
9345 loop {
9346 let diagnostics = if direction == Direction::Prev {
9347 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9348 } else {
9349 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9350 }
9351 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9352 let group = diagnostics
9353 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9354 // be sorted in a stable way
9355 // skip until we are at current active diagnostic, if it exists
9356 .skip_while(|entry| {
9357 (match direction {
9358 Direction::Prev => entry.range.start >= search_start,
9359 Direction::Next => entry.range.start <= search_start,
9360 }) && self
9361 .active_diagnostics
9362 .as_ref()
9363 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9364 })
9365 .find_map(|entry| {
9366 if entry.diagnostic.is_primary
9367 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9368 && !entry.range.is_empty()
9369 // if we match with the active diagnostic, skip it
9370 && Some(entry.diagnostic.group_id)
9371 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9372 {
9373 Some((entry.range, entry.diagnostic.group_id))
9374 } else {
9375 None
9376 }
9377 });
9378
9379 if let Some((primary_range, group_id)) = group {
9380 if self.activate_diagnostics(group_id, cx) {
9381 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9382 s.select(vec![Selection {
9383 id: selection.id,
9384 start: primary_range.start,
9385 end: primary_range.start,
9386 reversed: false,
9387 goal: SelectionGoal::None,
9388 }]);
9389 });
9390 }
9391 break;
9392 } else {
9393 // Cycle around to the start of the buffer, potentially moving back to the start of
9394 // the currently active diagnostic.
9395 active_primary_range.take();
9396 if direction == Direction::Prev {
9397 if search_start == buffer.len() {
9398 break;
9399 } else {
9400 search_start = buffer.len();
9401 }
9402 } else if search_start == 0 {
9403 break;
9404 } else {
9405 search_start = 0;
9406 }
9407 }
9408 }
9409 }
9410
9411 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9412 let snapshot = self
9413 .display_map
9414 .update(cx, |display_map, cx| display_map.snapshot(cx));
9415 let selection = self.selections.newest::<Point>(cx);
9416 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9417 }
9418
9419 fn go_to_hunk_after_position(
9420 &mut self,
9421 snapshot: &DisplaySnapshot,
9422 position: Point,
9423 cx: &mut ViewContext<'_, Editor>,
9424 ) -> Option<MultiBufferDiffHunk> {
9425 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9426 snapshot,
9427 position,
9428 false,
9429 snapshot
9430 .buffer_snapshot
9431 .git_diff_hunks_in_range(MultiBufferRow(position.row + 1)..MultiBufferRow::MAX),
9432 cx,
9433 ) {
9434 return Some(hunk);
9435 }
9436
9437 let wrapped_point = Point::zero();
9438 self.go_to_next_hunk_in_direction(
9439 snapshot,
9440 wrapped_point,
9441 true,
9442 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9443 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9444 ),
9445 cx,
9446 )
9447 }
9448
9449 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9450 let snapshot = self
9451 .display_map
9452 .update(cx, |display_map, cx| display_map.snapshot(cx));
9453 let selection = self.selections.newest::<Point>(cx);
9454
9455 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9456 }
9457
9458 fn go_to_hunk_before_position(
9459 &mut self,
9460 snapshot: &DisplaySnapshot,
9461 position: Point,
9462 cx: &mut ViewContext<'_, Editor>,
9463 ) -> Option<MultiBufferDiffHunk> {
9464 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9465 snapshot,
9466 position,
9467 false,
9468 snapshot
9469 .buffer_snapshot
9470 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(position.row)),
9471 cx,
9472 ) {
9473 return Some(hunk);
9474 }
9475
9476 let wrapped_point = snapshot.buffer_snapshot.max_point();
9477 self.go_to_next_hunk_in_direction(
9478 snapshot,
9479 wrapped_point,
9480 true,
9481 snapshot
9482 .buffer_snapshot
9483 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(wrapped_point.row)),
9484 cx,
9485 )
9486 }
9487
9488 fn go_to_next_hunk_in_direction(
9489 &mut self,
9490 snapshot: &DisplaySnapshot,
9491 initial_point: Point,
9492 is_wrapped: bool,
9493 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9494 cx: &mut ViewContext<Editor>,
9495 ) -> Option<MultiBufferDiffHunk> {
9496 let display_point = initial_point.to_display_point(snapshot);
9497 let mut hunks = hunks
9498 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9499 .filter(|(display_hunk, _)| {
9500 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9501 })
9502 .dedup();
9503
9504 if let Some((display_hunk, hunk)) = hunks.next() {
9505 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9506 let row = display_hunk.start_display_row();
9507 let point = DisplayPoint::new(row, 0);
9508 s.select_display_ranges([point..point]);
9509 });
9510
9511 Some(hunk)
9512 } else {
9513 None
9514 }
9515 }
9516
9517 pub fn go_to_definition(
9518 &mut self,
9519 _: &GoToDefinition,
9520 cx: &mut ViewContext<Self>,
9521 ) -> Task<Result<Navigated>> {
9522 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9523 cx.spawn(|editor, mut cx| async move {
9524 if definition.await? == Navigated::Yes {
9525 return Ok(Navigated::Yes);
9526 }
9527 match editor.update(&mut cx, |editor, cx| {
9528 editor.find_all_references(&FindAllReferences, cx)
9529 })? {
9530 Some(references) => references.await,
9531 None => Ok(Navigated::No),
9532 }
9533 })
9534 }
9535
9536 pub fn go_to_declaration(
9537 &mut self,
9538 _: &GoToDeclaration,
9539 cx: &mut ViewContext<Self>,
9540 ) -> Task<Result<Navigated>> {
9541 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9542 }
9543
9544 pub fn go_to_declaration_split(
9545 &mut self,
9546 _: &GoToDeclaration,
9547 cx: &mut ViewContext<Self>,
9548 ) -> Task<Result<Navigated>> {
9549 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9550 }
9551
9552 pub fn go_to_implementation(
9553 &mut self,
9554 _: &GoToImplementation,
9555 cx: &mut ViewContext<Self>,
9556 ) -> Task<Result<Navigated>> {
9557 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9558 }
9559
9560 pub fn go_to_implementation_split(
9561 &mut self,
9562 _: &GoToImplementationSplit,
9563 cx: &mut ViewContext<Self>,
9564 ) -> Task<Result<Navigated>> {
9565 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9566 }
9567
9568 pub fn go_to_type_definition(
9569 &mut self,
9570 _: &GoToTypeDefinition,
9571 cx: &mut ViewContext<Self>,
9572 ) -> Task<Result<Navigated>> {
9573 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9574 }
9575
9576 pub fn go_to_definition_split(
9577 &mut self,
9578 _: &GoToDefinitionSplit,
9579 cx: &mut ViewContext<Self>,
9580 ) -> Task<Result<Navigated>> {
9581 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9582 }
9583
9584 pub fn go_to_type_definition_split(
9585 &mut self,
9586 _: &GoToTypeDefinitionSplit,
9587 cx: &mut ViewContext<Self>,
9588 ) -> Task<Result<Navigated>> {
9589 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9590 }
9591
9592 fn go_to_definition_of_kind(
9593 &mut self,
9594 kind: GotoDefinitionKind,
9595 split: bool,
9596 cx: &mut ViewContext<Self>,
9597 ) -> Task<Result<Navigated>> {
9598 let Some(workspace) = self.workspace() else {
9599 return Task::ready(Ok(Navigated::No));
9600 };
9601 let buffer = self.buffer.read(cx);
9602 let head = self.selections.newest::<usize>(cx).head();
9603 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9604 text_anchor
9605 } else {
9606 return Task::ready(Ok(Navigated::No));
9607 };
9608
9609 let project = workspace.read(cx).project().clone();
9610 let definitions = project.update(cx, |project, cx| match kind {
9611 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
9612 GotoDefinitionKind::Declaration => project.declaration(&buffer, head, cx),
9613 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
9614 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
9615 });
9616
9617 cx.spawn(|editor, mut cx| async move {
9618 let definitions = definitions.await?;
9619 let navigated = editor
9620 .update(&mut cx, |editor, cx| {
9621 editor.navigate_to_hover_links(
9622 Some(kind),
9623 definitions
9624 .into_iter()
9625 .filter(|location| {
9626 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9627 })
9628 .map(HoverLink::Text)
9629 .collect::<Vec<_>>(),
9630 split,
9631 cx,
9632 )
9633 })?
9634 .await?;
9635 anyhow::Ok(navigated)
9636 })
9637 }
9638
9639 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9640 let position = self.selections.newest_anchor().head();
9641 let Some((buffer, buffer_position)) =
9642 self.buffer.read(cx).text_anchor_for_position(position, cx)
9643 else {
9644 return;
9645 };
9646
9647 cx.spawn(|editor, mut cx| async move {
9648 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9649 editor.update(&mut cx, |_, cx| {
9650 cx.open_url(&url);
9651 })
9652 } else {
9653 Ok(())
9654 }
9655 })
9656 .detach();
9657 }
9658
9659 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9660 let Some(workspace) = self.workspace() else {
9661 return;
9662 };
9663
9664 let position = self.selections.newest_anchor().head();
9665
9666 let Some((buffer, buffer_position)) =
9667 self.buffer.read(cx).text_anchor_for_position(position, cx)
9668 else {
9669 return;
9670 };
9671
9672 let Some(project) = self.project.clone() else {
9673 return;
9674 };
9675
9676 cx.spawn(|_, mut cx| async move {
9677 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9678
9679 if let Some((_, path)) = result {
9680 workspace
9681 .update(&mut cx, |workspace, cx| {
9682 workspace.open_resolved_path(path, cx)
9683 })?
9684 .await?;
9685 }
9686 anyhow::Ok(())
9687 })
9688 .detach();
9689 }
9690
9691 pub(crate) fn navigate_to_hover_links(
9692 &mut self,
9693 kind: Option<GotoDefinitionKind>,
9694 mut definitions: Vec<HoverLink>,
9695 split: bool,
9696 cx: &mut ViewContext<Editor>,
9697 ) -> Task<Result<Navigated>> {
9698 // If there is one definition, just open it directly
9699 if definitions.len() == 1 {
9700 let definition = definitions.pop().unwrap();
9701
9702 enum TargetTaskResult {
9703 Location(Option<Location>),
9704 AlreadyNavigated,
9705 }
9706
9707 let target_task = match definition {
9708 HoverLink::Text(link) => {
9709 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9710 }
9711 HoverLink::InlayHint(lsp_location, server_id) => {
9712 let computation = self.compute_target_location(lsp_location, server_id, cx);
9713 cx.background_executor().spawn(async move {
9714 let location = computation.await?;
9715 Ok(TargetTaskResult::Location(location))
9716 })
9717 }
9718 HoverLink::Url(url) => {
9719 cx.open_url(&url);
9720 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9721 }
9722 HoverLink::File(path) => {
9723 if let Some(workspace) = self.workspace() {
9724 cx.spawn(|_, mut cx| async move {
9725 workspace
9726 .update(&mut cx, |workspace, cx| {
9727 workspace.open_resolved_path(path, cx)
9728 })?
9729 .await
9730 .map(|_| TargetTaskResult::AlreadyNavigated)
9731 })
9732 } else {
9733 Task::ready(Ok(TargetTaskResult::Location(None)))
9734 }
9735 }
9736 };
9737 cx.spawn(|editor, mut cx| async move {
9738 let target = match target_task.await.context("target resolution task")? {
9739 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9740 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9741 TargetTaskResult::Location(Some(target)) => target,
9742 };
9743
9744 editor.update(&mut cx, |editor, cx| {
9745 let Some(workspace) = editor.workspace() else {
9746 return Navigated::No;
9747 };
9748 let pane = workspace.read(cx).active_pane().clone();
9749
9750 let range = target.range.to_offset(target.buffer.read(cx));
9751 let range = editor.range_for_match(&range);
9752
9753 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9754 let buffer = target.buffer.read(cx);
9755 let range = check_multiline_range(buffer, range);
9756 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9757 s.select_ranges([range]);
9758 });
9759 } else {
9760 cx.window_context().defer(move |cx| {
9761 let target_editor: View<Self> =
9762 workspace.update(cx, |workspace, cx| {
9763 let pane = if split {
9764 workspace.adjacent_pane(cx)
9765 } else {
9766 workspace.active_pane().clone()
9767 };
9768
9769 workspace.open_project_item(
9770 pane,
9771 target.buffer.clone(),
9772 true,
9773 true,
9774 cx,
9775 )
9776 });
9777 target_editor.update(cx, |target_editor, cx| {
9778 // When selecting a definition in a different buffer, disable the nav history
9779 // to avoid creating a history entry at the previous cursor location.
9780 pane.update(cx, |pane, _| pane.disable_history());
9781 let buffer = target.buffer.read(cx);
9782 let range = check_multiline_range(buffer, range);
9783 target_editor.change_selections(
9784 Some(Autoscroll::focused()),
9785 cx,
9786 |s| {
9787 s.select_ranges([range]);
9788 },
9789 );
9790 pane.update(cx, |pane, _| pane.enable_history());
9791 });
9792 });
9793 }
9794 Navigated::Yes
9795 })
9796 })
9797 } else if !definitions.is_empty() {
9798 cx.spawn(|editor, mut cx| async move {
9799 let (title, location_tasks, workspace) = editor
9800 .update(&mut cx, |editor, cx| {
9801 let tab_kind = match kind {
9802 Some(GotoDefinitionKind::Implementation) => "Implementations",
9803 _ => "Definitions",
9804 };
9805 let title = definitions
9806 .iter()
9807 .find_map(|definition| match definition {
9808 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9809 let buffer = origin.buffer.read(cx);
9810 format!(
9811 "{} for {}",
9812 tab_kind,
9813 buffer
9814 .text_for_range(origin.range.clone())
9815 .collect::<String>()
9816 )
9817 }),
9818 HoverLink::InlayHint(_, _) => None,
9819 HoverLink::Url(_) => None,
9820 HoverLink::File(_) => None,
9821 })
9822 .unwrap_or(tab_kind.to_string());
9823 let location_tasks = definitions
9824 .into_iter()
9825 .map(|definition| match definition {
9826 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9827 HoverLink::InlayHint(lsp_location, server_id) => {
9828 editor.compute_target_location(lsp_location, server_id, cx)
9829 }
9830 HoverLink::Url(_) => Task::ready(Ok(None)),
9831 HoverLink::File(_) => Task::ready(Ok(None)),
9832 })
9833 .collect::<Vec<_>>();
9834 (title, location_tasks, editor.workspace().clone())
9835 })
9836 .context("location tasks preparation")?;
9837
9838 let locations = future::join_all(location_tasks)
9839 .await
9840 .into_iter()
9841 .filter_map(|location| location.transpose())
9842 .collect::<Result<_>>()
9843 .context("location tasks")?;
9844
9845 let Some(workspace) = workspace else {
9846 return Ok(Navigated::No);
9847 };
9848 let opened = workspace
9849 .update(&mut cx, |workspace, cx| {
9850 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9851 })
9852 .ok();
9853
9854 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9855 })
9856 } else {
9857 Task::ready(Ok(Navigated::No))
9858 }
9859 }
9860
9861 fn compute_target_location(
9862 &self,
9863 lsp_location: lsp::Location,
9864 server_id: LanguageServerId,
9865 cx: &mut ViewContext<Editor>,
9866 ) -> Task<anyhow::Result<Option<Location>>> {
9867 let Some(project) = self.project.clone() else {
9868 return Task::Ready(Some(Ok(None)));
9869 };
9870
9871 cx.spawn(move |editor, mut cx| async move {
9872 let location_task = editor.update(&mut cx, |editor, cx| {
9873 project.update(cx, |project, cx| {
9874 let language_server_name =
9875 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
9876 project
9877 .language_server_for_buffer(buffer.read(cx), server_id, cx)
9878 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
9879 });
9880 language_server_name.map(|language_server_name| {
9881 project.open_local_buffer_via_lsp(
9882 lsp_location.uri.clone(),
9883 server_id,
9884 language_server_name,
9885 cx,
9886 )
9887 })
9888 })
9889 })?;
9890 let location = match location_task {
9891 Some(task) => Some({
9892 let target_buffer_handle = task.await.context("open local buffer")?;
9893 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9894 let target_start = target_buffer
9895 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9896 let target_end = target_buffer
9897 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9898 target_buffer.anchor_after(target_start)
9899 ..target_buffer.anchor_before(target_end)
9900 })?;
9901 Location {
9902 buffer: target_buffer_handle,
9903 range,
9904 }
9905 }),
9906 None => None,
9907 };
9908 Ok(location)
9909 })
9910 }
9911
9912 pub fn find_all_references(
9913 &mut self,
9914 _: &FindAllReferences,
9915 cx: &mut ViewContext<Self>,
9916 ) -> Option<Task<Result<Navigated>>> {
9917 let multi_buffer = self.buffer.read(cx);
9918 let selection = self.selections.newest::<usize>(cx);
9919 let head = selection.head();
9920
9921 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9922 let head_anchor = multi_buffer_snapshot.anchor_at(
9923 head,
9924 if head < selection.tail() {
9925 Bias::Right
9926 } else {
9927 Bias::Left
9928 },
9929 );
9930
9931 match self
9932 .find_all_references_task_sources
9933 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9934 {
9935 Ok(_) => {
9936 log::info!(
9937 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9938 );
9939 return None;
9940 }
9941 Err(i) => {
9942 self.find_all_references_task_sources.insert(i, head_anchor);
9943 }
9944 }
9945
9946 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9947 let workspace = self.workspace()?;
9948 let project = workspace.read(cx).project().clone();
9949 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9950 Some(cx.spawn(|editor, mut cx| async move {
9951 let _cleanup = defer({
9952 let mut cx = cx.clone();
9953 move || {
9954 let _ = editor.update(&mut cx, |editor, _| {
9955 if let Ok(i) =
9956 editor
9957 .find_all_references_task_sources
9958 .binary_search_by(|anchor| {
9959 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9960 })
9961 {
9962 editor.find_all_references_task_sources.remove(i);
9963 }
9964 });
9965 }
9966 });
9967
9968 let locations = references.await?;
9969 if locations.is_empty() {
9970 return anyhow::Ok(Navigated::No);
9971 }
9972
9973 workspace.update(&mut cx, |workspace, cx| {
9974 let title = locations
9975 .first()
9976 .as_ref()
9977 .map(|location| {
9978 let buffer = location.buffer.read(cx);
9979 format!(
9980 "References to `{}`",
9981 buffer
9982 .text_for_range(location.range.clone())
9983 .collect::<String>()
9984 )
9985 })
9986 .unwrap();
9987 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9988 Navigated::Yes
9989 })
9990 }))
9991 }
9992
9993 /// Opens a multibuffer with the given project locations in it
9994 pub fn open_locations_in_multibuffer(
9995 workspace: &mut Workspace,
9996 mut locations: Vec<Location>,
9997 title: String,
9998 split: bool,
9999 cx: &mut ViewContext<Workspace>,
10000 ) {
10001 // If there are multiple definitions, open them in a multibuffer
10002 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10003 let mut locations = locations.into_iter().peekable();
10004 let mut ranges_to_highlight = Vec::new();
10005 let capability = workspace.project().read(cx).capability();
10006
10007 let excerpt_buffer = cx.new_model(|cx| {
10008 let mut multibuffer = MultiBuffer::new(capability);
10009 while let Some(location) = locations.next() {
10010 let buffer = location.buffer.read(cx);
10011 let mut ranges_for_buffer = Vec::new();
10012 let range = location.range.to_offset(buffer);
10013 ranges_for_buffer.push(range.clone());
10014
10015 while let Some(next_location) = locations.peek() {
10016 if next_location.buffer == location.buffer {
10017 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10018 locations.next();
10019 } else {
10020 break;
10021 }
10022 }
10023
10024 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10025 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10026 location.buffer.clone(),
10027 ranges_for_buffer,
10028 DEFAULT_MULTIBUFFER_CONTEXT,
10029 cx,
10030 ))
10031 }
10032
10033 multibuffer.with_title(title)
10034 });
10035
10036 let editor = cx.new_view(|cx| {
10037 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10038 });
10039 editor.update(cx, |editor, cx| {
10040 if let Some(first_range) = ranges_to_highlight.first() {
10041 editor.change_selections(None, cx, |selections| {
10042 selections.clear_disjoint();
10043 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10044 });
10045 }
10046 editor.highlight_background::<Self>(
10047 &ranges_to_highlight,
10048 |theme| theme.editor_highlighted_line_background,
10049 cx,
10050 );
10051 });
10052
10053 let item = Box::new(editor);
10054 let item_id = item.item_id();
10055
10056 if split {
10057 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10058 } else {
10059 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10060 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10061 pane.close_current_preview_item(cx)
10062 } else {
10063 None
10064 }
10065 });
10066 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10067 }
10068 workspace.active_pane().update(cx, |pane, cx| {
10069 pane.set_preview_item_id(Some(item_id), cx);
10070 });
10071 }
10072
10073 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10074 use language::ToOffset as _;
10075
10076 let project = self.project.clone()?;
10077 let selection = self.selections.newest_anchor().clone();
10078 let (cursor_buffer, cursor_buffer_position) = self
10079 .buffer
10080 .read(cx)
10081 .text_anchor_for_position(selection.head(), cx)?;
10082 let (tail_buffer, cursor_buffer_position_end) = self
10083 .buffer
10084 .read(cx)
10085 .text_anchor_for_position(selection.tail(), cx)?;
10086 if tail_buffer != cursor_buffer {
10087 return None;
10088 }
10089
10090 let snapshot = cursor_buffer.read(cx).snapshot();
10091 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10092 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10093 let prepare_rename = project.update(cx, |project, cx| {
10094 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
10095 });
10096 drop(snapshot);
10097
10098 Some(cx.spawn(|this, mut cx| async move {
10099 let rename_range = if let Some(range) = prepare_rename.await? {
10100 Some(range)
10101 } else {
10102 this.update(&mut cx, |this, cx| {
10103 let buffer = this.buffer.read(cx).snapshot(cx);
10104 let mut buffer_highlights = this
10105 .document_highlights_for_position(selection.head(), &buffer)
10106 .filter(|highlight| {
10107 highlight.start.excerpt_id == selection.head().excerpt_id
10108 && highlight.end.excerpt_id == selection.head().excerpt_id
10109 });
10110 buffer_highlights
10111 .next()
10112 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10113 })?
10114 };
10115 if let Some(rename_range) = rename_range {
10116 this.update(&mut cx, |this, cx| {
10117 let snapshot = cursor_buffer.read(cx).snapshot();
10118 let rename_buffer_range = rename_range.to_offset(&snapshot);
10119 let cursor_offset_in_rename_range =
10120 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10121 let cursor_offset_in_rename_range_end =
10122 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10123
10124 this.take_rename(false, cx);
10125 let buffer = this.buffer.read(cx).read(cx);
10126 let cursor_offset = selection.head().to_offset(&buffer);
10127 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10128 let rename_end = rename_start + rename_buffer_range.len();
10129 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10130 let mut old_highlight_id = None;
10131 let old_name: Arc<str> = buffer
10132 .chunks(rename_start..rename_end, true)
10133 .map(|chunk| {
10134 if old_highlight_id.is_none() {
10135 old_highlight_id = chunk.syntax_highlight_id;
10136 }
10137 chunk.text
10138 })
10139 .collect::<String>()
10140 .into();
10141
10142 drop(buffer);
10143
10144 // Position the selection in the rename editor so that it matches the current selection.
10145 this.show_local_selections = false;
10146 let rename_editor = cx.new_view(|cx| {
10147 let mut editor = Editor::single_line(cx);
10148 editor.buffer.update(cx, |buffer, cx| {
10149 buffer.edit([(0..0, old_name.clone())], None, cx)
10150 });
10151 let rename_selection_range = match cursor_offset_in_rename_range
10152 .cmp(&cursor_offset_in_rename_range_end)
10153 {
10154 Ordering::Equal => {
10155 editor.select_all(&SelectAll, cx);
10156 return editor;
10157 }
10158 Ordering::Less => {
10159 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10160 }
10161 Ordering::Greater => {
10162 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10163 }
10164 };
10165 if rename_selection_range.end > old_name.len() {
10166 editor.select_all(&SelectAll, cx);
10167 } else {
10168 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10169 s.select_ranges([rename_selection_range]);
10170 });
10171 }
10172 editor
10173 });
10174 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10175 if e == &EditorEvent::Focused {
10176 cx.emit(EditorEvent::FocusedIn)
10177 }
10178 })
10179 .detach();
10180
10181 let write_highlights =
10182 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10183 let read_highlights =
10184 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10185 let ranges = write_highlights
10186 .iter()
10187 .flat_map(|(_, ranges)| ranges.iter())
10188 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10189 .cloned()
10190 .collect();
10191
10192 this.highlight_text::<Rename>(
10193 ranges,
10194 HighlightStyle {
10195 fade_out: Some(0.6),
10196 ..Default::default()
10197 },
10198 cx,
10199 );
10200 let rename_focus_handle = rename_editor.focus_handle(cx);
10201 cx.focus(&rename_focus_handle);
10202 let block_id = this.insert_blocks(
10203 [BlockProperties {
10204 style: BlockStyle::Flex,
10205 position: range.start,
10206 height: 1,
10207 render: Box::new({
10208 let rename_editor = rename_editor.clone();
10209 move |cx: &mut BlockContext| {
10210 let mut text_style = cx.editor_style.text.clone();
10211 if let Some(highlight_style) = old_highlight_id
10212 .and_then(|h| h.style(&cx.editor_style.syntax))
10213 {
10214 text_style = text_style.highlight(highlight_style);
10215 }
10216 div()
10217 .pl(cx.anchor_x)
10218 .child(EditorElement::new(
10219 &rename_editor,
10220 EditorStyle {
10221 background: cx.theme().system().transparent,
10222 local_player: cx.editor_style.local_player,
10223 text: text_style,
10224 scrollbar_width: cx.editor_style.scrollbar_width,
10225 syntax: cx.editor_style.syntax.clone(),
10226 status: cx.editor_style.status.clone(),
10227 inlay_hints_style: HighlightStyle {
10228 font_weight: Some(FontWeight::BOLD),
10229 ..make_inlay_hints_style(cx)
10230 },
10231 suggestions_style: HighlightStyle {
10232 color: Some(cx.theme().status().predictive),
10233 ..HighlightStyle::default()
10234 },
10235 ..EditorStyle::default()
10236 },
10237 ))
10238 .into_any_element()
10239 }
10240 }),
10241 disposition: BlockDisposition::Below,
10242 priority: 0,
10243 }],
10244 Some(Autoscroll::fit()),
10245 cx,
10246 )[0];
10247 this.pending_rename = Some(RenameState {
10248 range,
10249 old_name,
10250 editor: rename_editor,
10251 block_id,
10252 });
10253 })?;
10254 }
10255
10256 Ok(())
10257 }))
10258 }
10259
10260 pub fn confirm_rename(
10261 &mut self,
10262 _: &ConfirmRename,
10263 cx: &mut ViewContext<Self>,
10264 ) -> Option<Task<Result<()>>> {
10265 let rename = self.take_rename(false, cx)?;
10266 let workspace = self.workspace()?;
10267 let (start_buffer, start) = self
10268 .buffer
10269 .read(cx)
10270 .text_anchor_for_position(rename.range.start, cx)?;
10271 let (end_buffer, end) = self
10272 .buffer
10273 .read(cx)
10274 .text_anchor_for_position(rename.range.end, cx)?;
10275 if start_buffer != end_buffer {
10276 return None;
10277 }
10278
10279 let buffer = start_buffer;
10280 let range = start..end;
10281 let old_name = rename.old_name;
10282 let new_name = rename.editor.read(cx).text(cx);
10283
10284 let rename = workspace
10285 .read(cx)
10286 .project()
10287 .clone()
10288 .update(cx, |project, cx| {
10289 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
10290 });
10291 let workspace = workspace.downgrade();
10292
10293 Some(cx.spawn(|editor, mut cx| async move {
10294 let project_transaction = rename.await?;
10295 Self::open_project_transaction(
10296 &editor,
10297 workspace,
10298 project_transaction,
10299 format!("Rename: {} → {}", old_name, new_name),
10300 cx.clone(),
10301 )
10302 .await?;
10303
10304 editor.update(&mut cx, |editor, cx| {
10305 editor.refresh_document_highlights(cx);
10306 })?;
10307 Ok(())
10308 }))
10309 }
10310
10311 fn take_rename(
10312 &mut self,
10313 moving_cursor: bool,
10314 cx: &mut ViewContext<Self>,
10315 ) -> Option<RenameState> {
10316 let rename = self.pending_rename.take()?;
10317 if rename.editor.focus_handle(cx).is_focused(cx) {
10318 cx.focus(&self.focus_handle);
10319 }
10320
10321 self.remove_blocks(
10322 [rename.block_id].into_iter().collect(),
10323 Some(Autoscroll::fit()),
10324 cx,
10325 );
10326 self.clear_highlights::<Rename>(cx);
10327 self.show_local_selections = true;
10328
10329 if moving_cursor {
10330 let rename_editor = rename.editor.read(cx);
10331 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
10332
10333 // Update the selection to match the position of the selection inside
10334 // the rename editor.
10335 let snapshot = self.buffer.read(cx).read(cx);
10336 let rename_range = rename.range.to_offset(&snapshot);
10337 let cursor_in_editor = snapshot
10338 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10339 .min(rename_range.end);
10340 drop(snapshot);
10341
10342 self.change_selections(None, cx, |s| {
10343 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10344 });
10345 } else {
10346 self.refresh_document_highlights(cx);
10347 }
10348
10349 Some(rename)
10350 }
10351
10352 pub fn pending_rename(&self) -> Option<&RenameState> {
10353 self.pending_rename.as_ref()
10354 }
10355
10356 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10357 let project = match &self.project {
10358 Some(project) => project.clone(),
10359 None => return None,
10360 };
10361
10362 Some(self.perform_format(project, FormatTrigger::Manual, cx))
10363 }
10364
10365 fn perform_format(
10366 &mut self,
10367 project: Model<Project>,
10368 trigger: FormatTrigger,
10369 cx: &mut ViewContext<Self>,
10370 ) -> Task<Result<()>> {
10371 let buffer = self.buffer().clone();
10372 let mut buffers = buffer.read(cx).all_buffers();
10373 if trigger == FormatTrigger::Save {
10374 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10375 }
10376
10377 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10378 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
10379
10380 cx.spawn(|_, mut cx| async move {
10381 let transaction = futures::select_biased! {
10382 () = timeout => {
10383 log::warn!("timed out waiting for formatting");
10384 None
10385 }
10386 transaction = format.log_err().fuse() => transaction,
10387 };
10388
10389 buffer
10390 .update(&mut cx, |buffer, cx| {
10391 if let Some(transaction) = transaction {
10392 if !buffer.is_singleton() {
10393 buffer.push_transaction(&transaction.0, cx);
10394 }
10395 }
10396
10397 cx.notify();
10398 })
10399 .ok();
10400
10401 Ok(())
10402 })
10403 }
10404
10405 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10406 if let Some(project) = self.project.clone() {
10407 self.buffer.update(cx, |multi_buffer, cx| {
10408 project.update(cx, |project, cx| {
10409 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10410 });
10411 })
10412 }
10413 }
10414
10415 fn cancel_language_server_work(
10416 &mut self,
10417 _: &CancelLanguageServerWork,
10418 cx: &mut ViewContext<Self>,
10419 ) {
10420 if let Some(project) = self.project.clone() {
10421 self.buffer.update(cx, |multi_buffer, cx| {
10422 project.update(cx, |project, cx| {
10423 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10424 });
10425 })
10426 }
10427 }
10428
10429 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10430 cx.show_character_palette();
10431 }
10432
10433 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10434 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10435 let buffer = self.buffer.read(cx).snapshot(cx);
10436 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10437 let is_valid = buffer
10438 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10439 .any(|entry| {
10440 entry.diagnostic.is_primary
10441 && !entry.range.is_empty()
10442 && entry.range.start == primary_range_start
10443 && entry.diagnostic.message == active_diagnostics.primary_message
10444 });
10445
10446 if is_valid != active_diagnostics.is_valid {
10447 active_diagnostics.is_valid = is_valid;
10448 let mut new_styles = HashMap::default();
10449 for (block_id, diagnostic) in &active_diagnostics.blocks {
10450 new_styles.insert(
10451 *block_id,
10452 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10453 );
10454 }
10455 self.display_map.update(cx, |display_map, _cx| {
10456 display_map.replace_blocks(new_styles)
10457 });
10458 }
10459 }
10460 }
10461
10462 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10463 self.dismiss_diagnostics(cx);
10464 let snapshot = self.snapshot(cx);
10465 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10466 let buffer = self.buffer.read(cx).snapshot(cx);
10467
10468 let mut primary_range = None;
10469 let mut primary_message = None;
10470 let mut group_end = Point::zero();
10471 let diagnostic_group = buffer
10472 .diagnostic_group::<MultiBufferPoint>(group_id)
10473 .filter_map(|entry| {
10474 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10475 && (entry.range.start.row == entry.range.end.row
10476 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10477 {
10478 return None;
10479 }
10480 if entry.range.end > group_end {
10481 group_end = entry.range.end;
10482 }
10483 if entry.diagnostic.is_primary {
10484 primary_range = Some(entry.range.clone());
10485 primary_message = Some(entry.diagnostic.message.clone());
10486 }
10487 Some(entry)
10488 })
10489 .collect::<Vec<_>>();
10490 let primary_range = primary_range?;
10491 let primary_message = primary_message?;
10492 let primary_range =
10493 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10494
10495 let blocks = display_map
10496 .insert_blocks(
10497 diagnostic_group.iter().map(|entry| {
10498 let diagnostic = entry.diagnostic.clone();
10499 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10500 BlockProperties {
10501 style: BlockStyle::Fixed,
10502 position: buffer.anchor_after(entry.range.start),
10503 height: message_height,
10504 render: diagnostic_block_renderer(diagnostic, None, true, true),
10505 disposition: BlockDisposition::Below,
10506 priority: 0,
10507 }
10508 }),
10509 cx,
10510 )
10511 .into_iter()
10512 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10513 .collect();
10514
10515 Some(ActiveDiagnosticGroup {
10516 primary_range,
10517 primary_message,
10518 group_id,
10519 blocks,
10520 is_valid: true,
10521 })
10522 });
10523 self.active_diagnostics.is_some()
10524 }
10525
10526 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10527 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10528 self.display_map.update(cx, |display_map, cx| {
10529 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10530 });
10531 cx.notify();
10532 }
10533 }
10534
10535 pub fn set_selections_from_remote(
10536 &mut self,
10537 selections: Vec<Selection<Anchor>>,
10538 pending_selection: Option<Selection<Anchor>>,
10539 cx: &mut ViewContext<Self>,
10540 ) {
10541 let old_cursor_position = self.selections.newest_anchor().head();
10542 self.selections.change_with(cx, |s| {
10543 s.select_anchors(selections);
10544 if let Some(pending_selection) = pending_selection {
10545 s.set_pending(pending_selection, SelectMode::Character);
10546 } else {
10547 s.clear_pending();
10548 }
10549 });
10550 self.selections_did_change(false, &old_cursor_position, true, cx);
10551 }
10552
10553 fn push_to_selection_history(&mut self) {
10554 self.selection_history.push(SelectionHistoryEntry {
10555 selections: self.selections.disjoint_anchors(),
10556 select_next_state: self.select_next_state.clone(),
10557 select_prev_state: self.select_prev_state.clone(),
10558 add_selections_state: self.add_selections_state.clone(),
10559 });
10560 }
10561
10562 pub fn transact(
10563 &mut self,
10564 cx: &mut ViewContext<Self>,
10565 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10566 ) -> Option<TransactionId> {
10567 self.start_transaction_at(Instant::now(), cx);
10568 update(self, cx);
10569 self.end_transaction_at(Instant::now(), cx)
10570 }
10571
10572 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10573 self.end_selection(cx);
10574 if let Some(tx_id) = self
10575 .buffer
10576 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10577 {
10578 self.selection_history
10579 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10580 cx.emit(EditorEvent::TransactionBegun {
10581 transaction_id: tx_id,
10582 })
10583 }
10584 }
10585
10586 fn end_transaction_at(
10587 &mut self,
10588 now: Instant,
10589 cx: &mut ViewContext<Self>,
10590 ) -> Option<TransactionId> {
10591 if let Some(transaction_id) = self
10592 .buffer
10593 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10594 {
10595 if let Some((_, end_selections)) =
10596 self.selection_history.transaction_mut(transaction_id)
10597 {
10598 *end_selections = Some(self.selections.disjoint_anchors());
10599 } else {
10600 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10601 }
10602
10603 cx.emit(EditorEvent::Edited { transaction_id });
10604 Some(transaction_id)
10605 } else {
10606 None
10607 }
10608 }
10609
10610 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10611 let selection = self.selections.newest::<Point>(cx);
10612
10613 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10614 let range = if selection.is_empty() {
10615 let point = selection.head().to_display_point(&display_map);
10616 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10617 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10618 .to_point(&display_map);
10619 start..end
10620 } else {
10621 selection.range()
10622 };
10623 if display_map.folds_in_range(range).next().is_some() {
10624 self.unfold_lines(&Default::default(), cx)
10625 } else {
10626 self.fold(&Default::default(), cx)
10627 }
10628 }
10629
10630 pub fn toggle_fold_recursive(
10631 &mut self,
10632 _: &actions::ToggleFoldRecursive,
10633 cx: &mut ViewContext<Self>,
10634 ) {
10635 let selection = self.selections.newest::<Point>(cx);
10636
10637 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10638 let range = if selection.is_empty() {
10639 let point = selection.head().to_display_point(&display_map);
10640 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10641 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10642 .to_point(&display_map);
10643 start..end
10644 } else {
10645 selection.range()
10646 };
10647 if display_map.folds_in_range(range).next().is_some() {
10648 self.unfold_recursive(&Default::default(), cx)
10649 } else {
10650 self.fold_recursive(&Default::default(), cx)
10651 }
10652 }
10653
10654 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10655 let mut fold_ranges = Vec::new();
10656 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10657 let selections = self.selections.all_adjusted(cx);
10658
10659 for selection in selections {
10660 let range = selection.range().sorted();
10661 let buffer_start_row = range.start.row;
10662
10663 if range.start.row != range.end.row {
10664 let mut found = false;
10665 let mut row = range.start.row;
10666 while row <= range.end.row {
10667 if let Some((foldable_range, fold_text)) =
10668 { display_map.foldable_range(MultiBufferRow(row)) }
10669 {
10670 found = true;
10671 row = foldable_range.end.row + 1;
10672 fold_ranges.push((foldable_range, fold_text));
10673 } else {
10674 row += 1
10675 }
10676 }
10677 if found {
10678 continue;
10679 }
10680 }
10681
10682 for row in (0..=range.start.row).rev() {
10683 if let Some((foldable_range, fold_text)) =
10684 display_map.foldable_range(MultiBufferRow(row))
10685 {
10686 if foldable_range.end.row >= buffer_start_row {
10687 fold_ranges.push((foldable_range, fold_text));
10688 if row <= range.start.row {
10689 break;
10690 }
10691 }
10692 }
10693 }
10694 }
10695
10696 self.fold_ranges(fold_ranges, true, cx);
10697 }
10698
10699 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10700 let mut fold_ranges = Vec::new();
10701 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10702
10703 for row in 0..display_map.max_buffer_row().0 {
10704 if let Some((foldable_range, fold_text)) =
10705 display_map.foldable_range(MultiBufferRow(row))
10706 {
10707 fold_ranges.push((foldable_range, fold_text));
10708 }
10709 }
10710
10711 self.fold_ranges(fold_ranges, true, cx);
10712 }
10713
10714 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10715 let mut fold_ranges = Vec::new();
10716 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10717 let selections = self.selections.all_adjusted(cx);
10718
10719 for selection in selections {
10720 let range = selection.range().sorted();
10721 let buffer_start_row = range.start.row;
10722
10723 if range.start.row != range.end.row {
10724 let mut found = false;
10725 for row in range.start.row..=range.end.row {
10726 if let Some((foldable_range, fold_text)) =
10727 { display_map.foldable_range(MultiBufferRow(row)) }
10728 {
10729 found = true;
10730 fold_ranges.push((foldable_range, fold_text));
10731 }
10732 }
10733 if found {
10734 continue;
10735 }
10736 }
10737
10738 for row in (0..=range.start.row).rev() {
10739 if let Some((foldable_range, fold_text)) =
10740 display_map.foldable_range(MultiBufferRow(row))
10741 {
10742 if foldable_range.end.row >= buffer_start_row {
10743 fold_ranges.push((foldable_range, fold_text));
10744 } else {
10745 break;
10746 }
10747 }
10748 }
10749 }
10750
10751 self.fold_ranges(fold_ranges, true, cx);
10752 }
10753
10754 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10755 let buffer_row = fold_at.buffer_row;
10756 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10757
10758 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
10759 let autoscroll = self
10760 .selections
10761 .all::<Point>(cx)
10762 .iter()
10763 .any(|selection| fold_range.overlaps(&selection.range()));
10764
10765 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
10766 }
10767 }
10768
10769 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10770 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10771 let buffer = &display_map.buffer_snapshot;
10772 let selections = self.selections.all::<Point>(cx);
10773 let ranges = selections
10774 .iter()
10775 .map(|s| {
10776 let range = s.display_range(&display_map).sorted();
10777 let mut start = range.start.to_point(&display_map);
10778 let mut end = range.end.to_point(&display_map);
10779 start.column = 0;
10780 end.column = buffer.line_len(MultiBufferRow(end.row));
10781 start..end
10782 })
10783 .collect::<Vec<_>>();
10784
10785 self.unfold_ranges(ranges, true, true, cx);
10786 }
10787
10788 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10789 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10790 let selections = self.selections.all::<Point>(cx);
10791 let ranges = selections
10792 .iter()
10793 .map(|s| {
10794 let mut range = s.display_range(&display_map).sorted();
10795 *range.start.column_mut() = 0;
10796 *range.end.column_mut() = display_map.line_len(range.end.row());
10797 let start = range.start.to_point(&display_map);
10798 let end = range.end.to_point(&display_map);
10799 start..end
10800 })
10801 .collect::<Vec<_>>();
10802
10803 self.unfold_ranges(ranges, true, true, cx);
10804 }
10805
10806 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10807 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10808
10809 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10810 ..Point::new(
10811 unfold_at.buffer_row.0,
10812 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10813 );
10814
10815 let autoscroll = self
10816 .selections
10817 .all::<Point>(cx)
10818 .iter()
10819 .any(|selection| selection.range().overlaps(&intersection_range));
10820
10821 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
10822 }
10823
10824 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10825 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10826 self.unfold_ranges(
10827 [Point::zero()..display_map.max_point().to_point(&display_map)],
10828 true,
10829 true,
10830 cx,
10831 );
10832 }
10833
10834 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10835 let selections = self.selections.all::<Point>(cx);
10836 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10837 let line_mode = self.selections.line_mode;
10838 let ranges = selections.into_iter().map(|s| {
10839 if line_mode {
10840 let start = Point::new(s.start.row, 0);
10841 let end = Point::new(
10842 s.end.row,
10843 display_map
10844 .buffer_snapshot
10845 .line_len(MultiBufferRow(s.end.row)),
10846 );
10847 (start..end, display_map.fold_placeholder.clone())
10848 } else {
10849 (s.start..s.end, display_map.fold_placeholder.clone())
10850 }
10851 });
10852 self.fold_ranges(ranges, true, cx);
10853 }
10854
10855 pub fn fold_ranges<T: ToOffset + Clone>(
10856 &mut self,
10857 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
10858 auto_scroll: bool,
10859 cx: &mut ViewContext<Self>,
10860 ) {
10861 let mut fold_ranges = Vec::new();
10862 let mut buffers_affected = HashMap::default();
10863 let multi_buffer = self.buffer().read(cx);
10864 for (fold_range, fold_text) in ranges {
10865 if let Some((_, buffer, _)) =
10866 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
10867 {
10868 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10869 };
10870 fold_ranges.push((fold_range, fold_text));
10871 }
10872
10873 let mut ranges = fold_ranges.into_iter().peekable();
10874 if ranges.peek().is_some() {
10875 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
10876
10877 if auto_scroll {
10878 self.request_autoscroll(Autoscroll::fit(), cx);
10879 }
10880
10881 for buffer in buffers_affected.into_values() {
10882 self.sync_expanded_diff_hunks(buffer, cx);
10883 }
10884
10885 cx.notify();
10886
10887 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10888 // Clear diagnostics block when folding a range that contains it.
10889 let snapshot = self.snapshot(cx);
10890 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10891 drop(snapshot);
10892 self.active_diagnostics = Some(active_diagnostics);
10893 self.dismiss_diagnostics(cx);
10894 } else {
10895 self.active_diagnostics = Some(active_diagnostics);
10896 }
10897 }
10898
10899 self.scrollbar_marker_state.dirty = true;
10900 }
10901 }
10902
10903 pub fn unfold_ranges<T: ToOffset + Clone>(
10904 &mut self,
10905 ranges: impl IntoIterator<Item = Range<T>>,
10906 inclusive: bool,
10907 auto_scroll: bool,
10908 cx: &mut ViewContext<Self>,
10909 ) {
10910 let mut unfold_ranges = Vec::new();
10911 let mut buffers_affected = HashMap::default();
10912 let multi_buffer = self.buffer().read(cx);
10913 for range in ranges {
10914 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10915 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10916 };
10917 unfold_ranges.push(range);
10918 }
10919
10920 let mut ranges = unfold_ranges.into_iter().peekable();
10921 if ranges.peek().is_some() {
10922 self.display_map
10923 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
10924 if auto_scroll {
10925 self.request_autoscroll(Autoscroll::fit(), cx);
10926 }
10927
10928 for buffer in buffers_affected.into_values() {
10929 self.sync_expanded_diff_hunks(buffer, cx);
10930 }
10931
10932 cx.notify();
10933 self.scrollbar_marker_state.dirty = true;
10934 self.active_indent_guides_state.dirty = true;
10935 }
10936 }
10937
10938 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
10939 self.display_map.read(cx).fold_placeholder.clone()
10940 }
10941
10942 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10943 if hovered != self.gutter_hovered {
10944 self.gutter_hovered = hovered;
10945 cx.notify();
10946 }
10947 }
10948
10949 pub fn insert_blocks(
10950 &mut self,
10951 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
10952 autoscroll: Option<Autoscroll>,
10953 cx: &mut ViewContext<Self>,
10954 ) -> Vec<CustomBlockId> {
10955 let blocks = self
10956 .display_map
10957 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
10958 if let Some(autoscroll) = autoscroll {
10959 self.request_autoscroll(autoscroll, cx);
10960 }
10961 cx.notify();
10962 blocks
10963 }
10964
10965 pub fn resize_blocks(
10966 &mut self,
10967 heights: HashMap<CustomBlockId, u32>,
10968 autoscroll: Option<Autoscroll>,
10969 cx: &mut ViewContext<Self>,
10970 ) {
10971 self.display_map
10972 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
10973 if let Some(autoscroll) = autoscroll {
10974 self.request_autoscroll(autoscroll, cx);
10975 }
10976 cx.notify();
10977 }
10978
10979 pub fn replace_blocks(
10980 &mut self,
10981 renderers: HashMap<CustomBlockId, RenderBlock>,
10982 autoscroll: Option<Autoscroll>,
10983 cx: &mut ViewContext<Self>,
10984 ) {
10985 self.display_map
10986 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
10987 if let Some(autoscroll) = autoscroll {
10988 self.request_autoscroll(autoscroll, cx);
10989 }
10990 cx.notify();
10991 }
10992
10993 pub fn remove_blocks(
10994 &mut self,
10995 block_ids: HashSet<CustomBlockId>,
10996 autoscroll: Option<Autoscroll>,
10997 cx: &mut ViewContext<Self>,
10998 ) {
10999 self.display_map.update(cx, |display_map, cx| {
11000 display_map.remove_blocks(block_ids, cx)
11001 });
11002 if let Some(autoscroll) = autoscroll {
11003 self.request_autoscroll(autoscroll, cx);
11004 }
11005 cx.notify();
11006 }
11007
11008 pub fn row_for_block(
11009 &self,
11010 block_id: CustomBlockId,
11011 cx: &mut ViewContext<Self>,
11012 ) -> Option<DisplayRow> {
11013 self.display_map
11014 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11015 }
11016
11017 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11018 self.focused_block = Some(focused_block);
11019 }
11020
11021 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11022 self.focused_block.take()
11023 }
11024
11025 pub fn insert_creases(
11026 &mut self,
11027 creases: impl IntoIterator<Item = Crease>,
11028 cx: &mut ViewContext<Self>,
11029 ) -> Vec<CreaseId> {
11030 self.display_map
11031 .update(cx, |map, cx| map.insert_creases(creases, cx))
11032 }
11033
11034 pub fn remove_creases(
11035 &mut self,
11036 ids: impl IntoIterator<Item = CreaseId>,
11037 cx: &mut ViewContext<Self>,
11038 ) {
11039 self.display_map
11040 .update(cx, |map, cx| map.remove_creases(ids, cx));
11041 }
11042
11043 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11044 self.display_map
11045 .update(cx, |map, cx| map.snapshot(cx))
11046 .longest_row()
11047 }
11048
11049 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11050 self.display_map
11051 .update(cx, |map, cx| map.snapshot(cx))
11052 .max_point()
11053 }
11054
11055 pub fn text(&self, cx: &AppContext) -> String {
11056 self.buffer.read(cx).read(cx).text()
11057 }
11058
11059 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11060 let text = self.text(cx);
11061 let text = text.trim();
11062
11063 if text.is_empty() {
11064 return None;
11065 }
11066
11067 Some(text.to_string())
11068 }
11069
11070 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11071 self.transact(cx, |this, cx| {
11072 this.buffer
11073 .read(cx)
11074 .as_singleton()
11075 .expect("you can only call set_text on editors for singleton buffers")
11076 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11077 });
11078 }
11079
11080 pub fn display_text(&self, cx: &mut AppContext) -> String {
11081 self.display_map
11082 .update(cx, |map, cx| map.snapshot(cx))
11083 .text()
11084 }
11085
11086 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11087 let mut wrap_guides = smallvec::smallvec![];
11088
11089 if self.show_wrap_guides == Some(false) {
11090 return wrap_guides;
11091 }
11092
11093 let settings = self.buffer.read(cx).settings_at(0, cx);
11094 if settings.show_wrap_guides {
11095 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11096 wrap_guides.push((soft_wrap as usize, true));
11097 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11098 wrap_guides.push((soft_wrap as usize, true));
11099 }
11100 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11101 }
11102
11103 wrap_guides
11104 }
11105
11106 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11107 let settings = self.buffer.read(cx).settings_at(0, cx);
11108 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11109 match mode {
11110 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11111 SoftWrap::None
11112 }
11113 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11114 language_settings::SoftWrap::PreferredLineLength => {
11115 SoftWrap::Column(settings.preferred_line_length)
11116 }
11117 language_settings::SoftWrap::Bounded => {
11118 SoftWrap::Bounded(settings.preferred_line_length)
11119 }
11120 }
11121 }
11122
11123 pub fn set_soft_wrap_mode(
11124 &mut self,
11125 mode: language_settings::SoftWrap,
11126 cx: &mut ViewContext<Self>,
11127 ) {
11128 self.soft_wrap_mode_override = Some(mode);
11129 cx.notify();
11130 }
11131
11132 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11133 let rem_size = cx.rem_size();
11134 self.display_map.update(cx, |map, cx| {
11135 map.set_font(
11136 style.text.font(),
11137 style.text.font_size.to_pixels(rem_size),
11138 cx,
11139 )
11140 });
11141 self.style = Some(style);
11142 }
11143
11144 pub fn style(&self) -> Option<&EditorStyle> {
11145 self.style.as_ref()
11146 }
11147
11148 // Called by the element. This method is not designed to be called outside of the editor
11149 // element's layout code because it does not notify when rewrapping is computed synchronously.
11150 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11151 self.display_map
11152 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11153 }
11154
11155 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11156 if self.soft_wrap_mode_override.is_some() {
11157 self.soft_wrap_mode_override.take();
11158 } else {
11159 let soft_wrap = match self.soft_wrap_mode(cx) {
11160 SoftWrap::GitDiff => return,
11161 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11162 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11163 language_settings::SoftWrap::None
11164 }
11165 };
11166 self.soft_wrap_mode_override = Some(soft_wrap);
11167 }
11168 cx.notify();
11169 }
11170
11171 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11172 let Some(workspace) = self.workspace() else {
11173 return;
11174 };
11175 let fs = workspace.read(cx).app_state().fs.clone();
11176 let current_show = TabBarSettings::get_global(cx).show;
11177 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11178 setting.show = Some(!current_show);
11179 });
11180 }
11181
11182 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11183 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11184 self.buffer
11185 .read(cx)
11186 .settings_at(0, cx)
11187 .indent_guides
11188 .enabled
11189 });
11190 self.show_indent_guides = Some(!currently_enabled);
11191 cx.notify();
11192 }
11193
11194 fn should_show_indent_guides(&self) -> Option<bool> {
11195 self.show_indent_guides
11196 }
11197
11198 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11199 let mut editor_settings = EditorSettings::get_global(cx).clone();
11200 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11201 EditorSettings::override_global(editor_settings, cx);
11202 }
11203
11204 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11205 self.use_relative_line_numbers
11206 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11207 }
11208
11209 pub fn toggle_relative_line_numbers(
11210 &mut self,
11211 _: &ToggleRelativeLineNumbers,
11212 cx: &mut ViewContext<Self>,
11213 ) {
11214 let is_relative = self.should_use_relative_line_numbers(cx);
11215 self.set_relative_line_number(Some(!is_relative), cx)
11216 }
11217
11218 pub fn set_relative_line_number(
11219 &mut self,
11220 is_relative: Option<bool>,
11221 cx: &mut ViewContext<Self>,
11222 ) {
11223 self.use_relative_line_numbers = is_relative;
11224 cx.notify();
11225 }
11226
11227 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11228 self.show_gutter = show_gutter;
11229 cx.notify();
11230 }
11231
11232 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11233 self.show_line_numbers = Some(show_line_numbers);
11234 cx.notify();
11235 }
11236
11237 pub fn set_show_git_diff_gutter(
11238 &mut self,
11239 show_git_diff_gutter: bool,
11240 cx: &mut ViewContext<Self>,
11241 ) {
11242 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11243 cx.notify();
11244 }
11245
11246 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11247 self.show_code_actions = Some(show_code_actions);
11248 cx.notify();
11249 }
11250
11251 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11252 self.show_runnables = Some(show_runnables);
11253 cx.notify();
11254 }
11255
11256 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11257 if self.display_map.read(cx).masked != masked {
11258 self.display_map.update(cx, |map, _| map.masked = masked);
11259 }
11260 cx.notify()
11261 }
11262
11263 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11264 self.show_wrap_guides = Some(show_wrap_guides);
11265 cx.notify();
11266 }
11267
11268 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11269 self.show_indent_guides = Some(show_indent_guides);
11270 cx.notify();
11271 }
11272
11273 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11274 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11275 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11276 if let Some(dir) = file.abs_path(cx).parent() {
11277 return Some(dir.to_owned());
11278 }
11279 }
11280
11281 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11282 return Some(project_path.path.to_path_buf());
11283 }
11284 }
11285
11286 None
11287 }
11288
11289 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11290 self.active_excerpt(cx)?
11291 .1
11292 .read(cx)
11293 .file()
11294 .and_then(|f| f.as_local())
11295 }
11296
11297 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11298 if let Some(target) = self.target_file(cx) {
11299 cx.reveal_path(&target.abs_path(cx));
11300 }
11301 }
11302
11303 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11304 if let Some(file) = self.target_file(cx) {
11305 if let Some(path) = file.abs_path(cx).to_str() {
11306 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11307 }
11308 }
11309 }
11310
11311 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11312 if let Some(file) = self.target_file(cx) {
11313 if let Some(path) = file.path().to_str() {
11314 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11315 }
11316 }
11317 }
11318
11319 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11320 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11321
11322 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11323 self.start_git_blame(true, cx);
11324 }
11325
11326 cx.notify();
11327 }
11328
11329 pub fn toggle_git_blame_inline(
11330 &mut self,
11331 _: &ToggleGitBlameInline,
11332 cx: &mut ViewContext<Self>,
11333 ) {
11334 self.toggle_git_blame_inline_internal(true, cx);
11335 cx.notify();
11336 }
11337
11338 pub fn git_blame_inline_enabled(&self) -> bool {
11339 self.git_blame_inline_enabled
11340 }
11341
11342 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11343 self.show_selection_menu = self
11344 .show_selection_menu
11345 .map(|show_selections_menu| !show_selections_menu)
11346 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11347
11348 cx.notify();
11349 }
11350
11351 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11352 self.show_selection_menu
11353 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11354 }
11355
11356 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11357 if let Some(project) = self.project.as_ref() {
11358 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11359 return;
11360 };
11361
11362 if buffer.read(cx).file().is_none() {
11363 return;
11364 }
11365
11366 let focused = self.focus_handle(cx).contains_focused(cx);
11367
11368 let project = project.clone();
11369 let blame =
11370 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11371 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11372 self.blame = Some(blame);
11373 }
11374 }
11375
11376 fn toggle_git_blame_inline_internal(
11377 &mut self,
11378 user_triggered: bool,
11379 cx: &mut ViewContext<Self>,
11380 ) {
11381 if self.git_blame_inline_enabled {
11382 self.git_blame_inline_enabled = false;
11383 self.show_git_blame_inline = false;
11384 self.show_git_blame_inline_delay_task.take();
11385 } else {
11386 self.git_blame_inline_enabled = true;
11387 self.start_git_blame_inline(user_triggered, cx);
11388 }
11389
11390 cx.notify();
11391 }
11392
11393 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11394 self.start_git_blame(user_triggered, cx);
11395
11396 if ProjectSettings::get_global(cx)
11397 .git
11398 .inline_blame_delay()
11399 .is_some()
11400 {
11401 self.start_inline_blame_timer(cx);
11402 } else {
11403 self.show_git_blame_inline = true
11404 }
11405 }
11406
11407 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11408 self.blame.as_ref()
11409 }
11410
11411 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11412 self.show_git_blame_gutter && self.has_blame_entries(cx)
11413 }
11414
11415 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11416 self.show_git_blame_inline
11417 && self.focus_handle.is_focused(cx)
11418 && !self.newest_selection_head_on_empty_line(cx)
11419 && self.has_blame_entries(cx)
11420 }
11421
11422 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11423 self.blame()
11424 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11425 }
11426
11427 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11428 let cursor_anchor = self.selections.newest_anchor().head();
11429
11430 let snapshot = self.buffer.read(cx).snapshot(cx);
11431 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11432
11433 snapshot.line_len(buffer_row) == 0
11434 }
11435
11436 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
11437 let (path, selection, repo) = maybe!({
11438 let project_handle = self.project.as_ref()?.clone();
11439 let project = project_handle.read(cx);
11440
11441 let selection = self.selections.newest::<Point>(cx);
11442 let selection_range = selection.range();
11443
11444 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11445 (buffer, selection_range.start.row..selection_range.end.row)
11446 } else {
11447 let buffer_ranges = self
11448 .buffer()
11449 .read(cx)
11450 .range_to_buffer_ranges(selection_range, cx);
11451
11452 let (buffer, range, _) = if selection.reversed {
11453 buffer_ranges.first()
11454 } else {
11455 buffer_ranges.last()
11456 }?;
11457
11458 let snapshot = buffer.read(cx).snapshot();
11459 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11460 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11461 (buffer.clone(), selection)
11462 };
11463
11464 let path = buffer
11465 .read(cx)
11466 .file()?
11467 .as_local()?
11468 .path()
11469 .to_str()?
11470 .to_string();
11471 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
11472 Some((path, selection, repo))
11473 })
11474 .ok_or_else(|| anyhow!("unable to open git repository"))?;
11475
11476 const REMOTE_NAME: &str = "origin";
11477 let origin_url = repo
11478 .remote_url(REMOTE_NAME)
11479 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
11480 let sha = repo
11481 .head_sha()
11482 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
11483
11484 let (provider, remote) =
11485 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
11486 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
11487
11488 Ok(provider.build_permalink(
11489 remote,
11490 BuildPermalinkParams {
11491 sha: &sha,
11492 path: &path,
11493 selection: Some(selection),
11494 },
11495 ))
11496 }
11497
11498 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11499 let permalink = self.get_permalink_to_line(cx);
11500
11501 match permalink {
11502 Ok(permalink) => {
11503 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11504 }
11505 Err(err) => {
11506 let message = format!("Failed to copy permalink: {err}");
11507
11508 Err::<(), anyhow::Error>(err).log_err();
11509
11510 if let Some(workspace) = self.workspace() {
11511 workspace.update(cx, |workspace, cx| {
11512 struct CopyPermalinkToLine;
11513
11514 workspace.show_toast(
11515 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
11516 cx,
11517 )
11518 })
11519 }
11520 }
11521 }
11522 }
11523
11524 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11525 if let Some(file) = self.target_file(cx) {
11526 if let Some(path) = file.path().to_str() {
11527 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11528 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11529 }
11530 }
11531 }
11532
11533 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11534 let permalink = self.get_permalink_to_line(cx);
11535
11536 match permalink {
11537 Ok(permalink) => {
11538 cx.open_url(permalink.as_ref());
11539 }
11540 Err(err) => {
11541 let message = format!("Failed to open permalink: {err}");
11542
11543 Err::<(), anyhow::Error>(err).log_err();
11544
11545 if let Some(workspace) = self.workspace() {
11546 workspace.update(cx, |workspace, cx| {
11547 struct OpenPermalinkToLine;
11548
11549 workspace.show_toast(
11550 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
11551 cx,
11552 )
11553 })
11554 }
11555 }
11556 }
11557 }
11558
11559 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11560 /// last highlight added will be used.
11561 ///
11562 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11563 pub fn highlight_rows<T: 'static>(
11564 &mut self,
11565 range: Range<Anchor>,
11566 color: Hsla,
11567 should_autoscroll: bool,
11568 cx: &mut ViewContext<Self>,
11569 ) {
11570 let snapshot = self.buffer().read(cx).snapshot(cx);
11571 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11572 let ix = row_highlights.binary_search_by(|highlight| {
11573 Ordering::Equal
11574 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11575 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11576 });
11577
11578 if let Err(mut ix) = ix {
11579 let index = post_inc(&mut self.highlight_order);
11580
11581 // If this range intersects with the preceding highlight, then merge it with
11582 // the preceding highlight. Otherwise insert a new highlight.
11583 let mut merged = false;
11584 if ix > 0 {
11585 let prev_highlight = &mut row_highlights[ix - 1];
11586 if prev_highlight
11587 .range
11588 .end
11589 .cmp(&range.start, &snapshot)
11590 .is_ge()
11591 {
11592 ix -= 1;
11593 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11594 prev_highlight.range.end = range.end;
11595 }
11596 merged = true;
11597 prev_highlight.index = index;
11598 prev_highlight.color = color;
11599 prev_highlight.should_autoscroll = should_autoscroll;
11600 }
11601 }
11602
11603 if !merged {
11604 row_highlights.insert(
11605 ix,
11606 RowHighlight {
11607 range: range.clone(),
11608 index,
11609 color,
11610 should_autoscroll,
11611 },
11612 );
11613 }
11614
11615 // If any of the following highlights intersect with this one, merge them.
11616 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11617 let highlight = &row_highlights[ix];
11618 if next_highlight
11619 .range
11620 .start
11621 .cmp(&highlight.range.end, &snapshot)
11622 .is_le()
11623 {
11624 if next_highlight
11625 .range
11626 .end
11627 .cmp(&highlight.range.end, &snapshot)
11628 .is_gt()
11629 {
11630 row_highlights[ix].range.end = next_highlight.range.end;
11631 }
11632 row_highlights.remove(ix + 1);
11633 } else {
11634 break;
11635 }
11636 }
11637 }
11638 }
11639
11640 /// Remove any highlighted row ranges of the given type that intersect the
11641 /// given ranges.
11642 pub fn remove_highlighted_rows<T: 'static>(
11643 &mut self,
11644 ranges_to_remove: Vec<Range<Anchor>>,
11645 cx: &mut ViewContext<Self>,
11646 ) {
11647 let snapshot = self.buffer().read(cx).snapshot(cx);
11648 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11649 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11650 row_highlights.retain(|highlight| {
11651 while let Some(range_to_remove) = ranges_to_remove.peek() {
11652 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11653 Ordering::Less | Ordering::Equal => {
11654 ranges_to_remove.next();
11655 }
11656 Ordering::Greater => {
11657 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11658 Ordering::Less | Ordering::Equal => {
11659 return false;
11660 }
11661 Ordering::Greater => break,
11662 }
11663 }
11664 }
11665 }
11666
11667 true
11668 })
11669 }
11670
11671 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11672 pub fn clear_row_highlights<T: 'static>(&mut self) {
11673 self.highlighted_rows.remove(&TypeId::of::<T>());
11674 }
11675
11676 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11677 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11678 self.highlighted_rows
11679 .get(&TypeId::of::<T>())
11680 .map_or(&[] as &[_], |vec| vec.as_slice())
11681 .iter()
11682 .map(|highlight| (highlight.range.clone(), highlight.color))
11683 }
11684
11685 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11686 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11687 /// Allows to ignore certain kinds of highlights.
11688 pub fn highlighted_display_rows(
11689 &mut self,
11690 cx: &mut WindowContext,
11691 ) -> BTreeMap<DisplayRow, Hsla> {
11692 let snapshot = self.snapshot(cx);
11693 let mut used_highlight_orders = HashMap::default();
11694 self.highlighted_rows
11695 .iter()
11696 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11697 .fold(
11698 BTreeMap::<DisplayRow, Hsla>::new(),
11699 |mut unique_rows, highlight| {
11700 let start = highlight.range.start.to_display_point(&snapshot);
11701 let end = highlight.range.end.to_display_point(&snapshot);
11702 let start_row = start.row().0;
11703 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11704 && end.column() == 0
11705 {
11706 end.row().0.saturating_sub(1)
11707 } else {
11708 end.row().0
11709 };
11710 for row in start_row..=end_row {
11711 let used_index =
11712 used_highlight_orders.entry(row).or_insert(highlight.index);
11713 if highlight.index >= *used_index {
11714 *used_index = highlight.index;
11715 unique_rows.insert(DisplayRow(row), highlight.color);
11716 }
11717 }
11718 unique_rows
11719 },
11720 )
11721 }
11722
11723 pub fn highlighted_display_row_for_autoscroll(
11724 &self,
11725 snapshot: &DisplaySnapshot,
11726 ) -> Option<DisplayRow> {
11727 self.highlighted_rows
11728 .values()
11729 .flat_map(|highlighted_rows| highlighted_rows.iter())
11730 .filter_map(|highlight| {
11731 if highlight.should_autoscroll {
11732 Some(highlight.range.start.to_display_point(snapshot).row())
11733 } else {
11734 None
11735 }
11736 })
11737 .min()
11738 }
11739
11740 pub fn set_search_within_ranges(
11741 &mut self,
11742 ranges: &[Range<Anchor>],
11743 cx: &mut ViewContext<Self>,
11744 ) {
11745 self.highlight_background::<SearchWithinRange>(
11746 ranges,
11747 |colors| colors.editor_document_highlight_read_background,
11748 cx,
11749 )
11750 }
11751
11752 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11753 self.breadcrumb_header = Some(new_header);
11754 }
11755
11756 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11757 self.clear_background_highlights::<SearchWithinRange>(cx);
11758 }
11759
11760 pub fn highlight_background<T: 'static>(
11761 &mut self,
11762 ranges: &[Range<Anchor>],
11763 color_fetcher: fn(&ThemeColors) -> Hsla,
11764 cx: &mut ViewContext<Self>,
11765 ) {
11766 self.background_highlights
11767 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11768 self.scrollbar_marker_state.dirty = true;
11769 cx.notify();
11770 }
11771
11772 pub fn clear_background_highlights<T: 'static>(
11773 &mut self,
11774 cx: &mut ViewContext<Self>,
11775 ) -> Option<BackgroundHighlight> {
11776 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11777 if !text_highlights.1.is_empty() {
11778 self.scrollbar_marker_state.dirty = true;
11779 cx.notify();
11780 }
11781 Some(text_highlights)
11782 }
11783
11784 pub fn highlight_gutter<T: 'static>(
11785 &mut self,
11786 ranges: &[Range<Anchor>],
11787 color_fetcher: fn(&AppContext) -> Hsla,
11788 cx: &mut ViewContext<Self>,
11789 ) {
11790 self.gutter_highlights
11791 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11792 cx.notify();
11793 }
11794
11795 pub fn clear_gutter_highlights<T: 'static>(
11796 &mut self,
11797 cx: &mut ViewContext<Self>,
11798 ) -> Option<GutterHighlight> {
11799 cx.notify();
11800 self.gutter_highlights.remove(&TypeId::of::<T>())
11801 }
11802
11803 #[cfg(feature = "test-support")]
11804 pub fn all_text_background_highlights(
11805 &mut self,
11806 cx: &mut ViewContext<Self>,
11807 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11808 let snapshot = self.snapshot(cx);
11809 let buffer = &snapshot.buffer_snapshot;
11810 let start = buffer.anchor_before(0);
11811 let end = buffer.anchor_after(buffer.len());
11812 let theme = cx.theme().colors();
11813 self.background_highlights_in_range(start..end, &snapshot, theme)
11814 }
11815
11816 #[cfg(feature = "test-support")]
11817 pub fn search_background_highlights(
11818 &mut self,
11819 cx: &mut ViewContext<Self>,
11820 ) -> Vec<Range<Point>> {
11821 let snapshot = self.buffer().read(cx).snapshot(cx);
11822
11823 let highlights = self
11824 .background_highlights
11825 .get(&TypeId::of::<items::BufferSearchHighlights>());
11826
11827 if let Some((_color, ranges)) = highlights {
11828 ranges
11829 .iter()
11830 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11831 .collect_vec()
11832 } else {
11833 vec![]
11834 }
11835 }
11836
11837 fn document_highlights_for_position<'a>(
11838 &'a self,
11839 position: Anchor,
11840 buffer: &'a MultiBufferSnapshot,
11841 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11842 let read_highlights = self
11843 .background_highlights
11844 .get(&TypeId::of::<DocumentHighlightRead>())
11845 .map(|h| &h.1);
11846 let write_highlights = self
11847 .background_highlights
11848 .get(&TypeId::of::<DocumentHighlightWrite>())
11849 .map(|h| &h.1);
11850 let left_position = position.bias_left(buffer);
11851 let right_position = position.bias_right(buffer);
11852 read_highlights
11853 .into_iter()
11854 .chain(write_highlights)
11855 .flat_map(move |ranges| {
11856 let start_ix = match ranges.binary_search_by(|probe| {
11857 let cmp = probe.end.cmp(&left_position, buffer);
11858 if cmp.is_ge() {
11859 Ordering::Greater
11860 } else {
11861 Ordering::Less
11862 }
11863 }) {
11864 Ok(i) | Err(i) => i,
11865 };
11866
11867 ranges[start_ix..]
11868 .iter()
11869 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11870 })
11871 }
11872
11873 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11874 self.background_highlights
11875 .get(&TypeId::of::<T>())
11876 .map_or(false, |(_, highlights)| !highlights.is_empty())
11877 }
11878
11879 pub fn background_highlights_in_range(
11880 &self,
11881 search_range: Range<Anchor>,
11882 display_snapshot: &DisplaySnapshot,
11883 theme: &ThemeColors,
11884 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11885 let mut results = Vec::new();
11886 for (color_fetcher, ranges) in self.background_highlights.values() {
11887 let color = color_fetcher(theme);
11888 let start_ix = match ranges.binary_search_by(|probe| {
11889 let cmp = probe
11890 .end
11891 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11892 if cmp.is_gt() {
11893 Ordering::Greater
11894 } else {
11895 Ordering::Less
11896 }
11897 }) {
11898 Ok(i) | Err(i) => i,
11899 };
11900 for range in &ranges[start_ix..] {
11901 if range
11902 .start
11903 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11904 .is_ge()
11905 {
11906 break;
11907 }
11908
11909 let start = range.start.to_display_point(display_snapshot);
11910 let end = range.end.to_display_point(display_snapshot);
11911 results.push((start..end, color))
11912 }
11913 }
11914 results
11915 }
11916
11917 pub fn background_highlight_row_ranges<T: 'static>(
11918 &self,
11919 search_range: Range<Anchor>,
11920 display_snapshot: &DisplaySnapshot,
11921 count: usize,
11922 ) -> Vec<RangeInclusive<DisplayPoint>> {
11923 let mut results = Vec::new();
11924 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
11925 return vec![];
11926 };
11927
11928 let start_ix = match ranges.binary_search_by(|probe| {
11929 let cmp = probe
11930 .end
11931 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11932 if cmp.is_gt() {
11933 Ordering::Greater
11934 } else {
11935 Ordering::Less
11936 }
11937 }) {
11938 Ok(i) | Err(i) => i,
11939 };
11940 let mut push_region = |start: Option<Point>, end: Option<Point>| {
11941 if let (Some(start_display), Some(end_display)) = (start, end) {
11942 results.push(
11943 start_display.to_display_point(display_snapshot)
11944 ..=end_display.to_display_point(display_snapshot),
11945 );
11946 }
11947 };
11948 let mut start_row: Option<Point> = None;
11949 let mut end_row: Option<Point> = None;
11950 if ranges.len() > count {
11951 return Vec::new();
11952 }
11953 for range in &ranges[start_ix..] {
11954 if range
11955 .start
11956 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11957 .is_ge()
11958 {
11959 break;
11960 }
11961 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
11962 if let Some(current_row) = &end_row {
11963 if end.row == current_row.row {
11964 continue;
11965 }
11966 }
11967 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
11968 if start_row.is_none() {
11969 assert_eq!(end_row, None);
11970 start_row = Some(start);
11971 end_row = Some(end);
11972 continue;
11973 }
11974 if let Some(current_end) = end_row.as_mut() {
11975 if start.row > current_end.row + 1 {
11976 push_region(start_row, end_row);
11977 start_row = Some(start);
11978 end_row = Some(end);
11979 } else {
11980 // Merge two hunks.
11981 *current_end = end;
11982 }
11983 } else {
11984 unreachable!();
11985 }
11986 }
11987 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
11988 push_region(start_row, end_row);
11989 results
11990 }
11991
11992 pub fn gutter_highlights_in_range(
11993 &self,
11994 search_range: Range<Anchor>,
11995 display_snapshot: &DisplaySnapshot,
11996 cx: &AppContext,
11997 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11998 let mut results = Vec::new();
11999 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12000 let color = color_fetcher(cx);
12001 let start_ix = match ranges.binary_search_by(|probe| {
12002 let cmp = probe
12003 .end
12004 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12005 if cmp.is_gt() {
12006 Ordering::Greater
12007 } else {
12008 Ordering::Less
12009 }
12010 }) {
12011 Ok(i) | Err(i) => i,
12012 };
12013 for range in &ranges[start_ix..] {
12014 if range
12015 .start
12016 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12017 .is_ge()
12018 {
12019 break;
12020 }
12021
12022 let start = range.start.to_display_point(display_snapshot);
12023 let end = range.end.to_display_point(display_snapshot);
12024 results.push((start..end, color))
12025 }
12026 }
12027 results
12028 }
12029
12030 /// Get the text ranges corresponding to the redaction query
12031 pub fn redacted_ranges(
12032 &self,
12033 search_range: Range<Anchor>,
12034 display_snapshot: &DisplaySnapshot,
12035 cx: &WindowContext,
12036 ) -> Vec<Range<DisplayPoint>> {
12037 display_snapshot
12038 .buffer_snapshot
12039 .redacted_ranges(search_range, |file| {
12040 if let Some(file) = file {
12041 file.is_private()
12042 && EditorSettings::get(
12043 Some(SettingsLocation {
12044 worktree_id: file.worktree_id(cx),
12045 path: file.path().as_ref(),
12046 }),
12047 cx,
12048 )
12049 .redact_private_values
12050 } else {
12051 false
12052 }
12053 })
12054 .map(|range| {
12055 range.start.to_display_point(display_snapshot)
12056 ..range.end.to_display_point(display_snapshot)
12057 })
12058 .collect()
12059 }
12060
12061 pub fn highlight_text<T: 'static>(
12062 &mut self,
12063 ranges: Vec<Range<Anchor>>,
12064 style: HighlightStyle,
12065 cx: &mut ViewContext<Self>,
12066 ) {
12067 self.display_map.update(cx, |map, _| {
12068 map.highlight_text(TypeId::of::<T>(), ranges, style)
12069 });
12070 cx.notify();
12071 }
12072
12073 pub(crate) fn highlight_inlays<T: 'static>(
12074 &mut self,
12075 highlights: Vec<InlayHighlight>,
12076 style: HighlightStyle,
12077 cx: &mut ViewContext<Self>,
12078 ) {
12079 self.display_map.update(cx, |map, _| {
12080 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12081 });
12082 cx.notify();
12083 }
12084
12085 pub fn text_highlights<'a, T: 'static>(
12086 &'a self,
12087 cx: &'a AppContext,
12088 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12089 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12090 }
12091
12092 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12093 let cleared = self
12094 .display_map
12095 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12096 if cleared {
12097 cx.notify();
12098 }
12099 }
12100
12101 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12102 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12103 && self.focus_handle.is_focused(cx)
12104 }
12105
12106 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12107 self.show_cursor_when_unfocused = is_enabled;
12108 cx.notify();
12109 }
12110
12111 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12112 cx.notify();
12113 }
12114
12115 fn on_buffer_event(
12116 &mut self,
12117 multibuffer: Model<MultiBuffer>,
12118 event: &multi_buffer::Event,
12119 cx: &mut ViewContext<Self>,
12120 ) {
12121 match event {
12122 multi_buffer::Event::Edited {
12123 singleton_buffer_edited,
12124 } => {
12125 self.scrollbar_marker_state.dirty = true;
12126 self.active_indent_guides_state.dirty = true;
12127 self.refresh_active_diagnostics(cx);
12128 self.refresh_code_actions(cx);
12129 if self.has_active_inline_completion(cx) {
12130 self.update_visible_inline_completion(cx);
12131 }
12132 cx.emit(EditorEvent::BufferEdited);
12133 cx.emit(SearchEvent::MatchesInvalidated);
12134 if *singleton_buffer_edited {
12135 if let Some(project) = &self.project {
12136 let project = project.read(cx);
12137 #[allow(clippy::mutable_key_type)]
12138 let languages_affected = multibuffer
12139 .read(cx)
12140 .all_buffers()
12141 .into_iter()
12142 .filter_map(|buffer| {
12143 let buffer = buffer.read(cx);
12144 let language = buffer.language()?;
12145 if project.is_local()
12146 && project.language_servers_for_buffer(buffer, cx).count() == 0
12147 {
12148 None
12149 } else {
12150 Some(language)
12151 }
12152 })
12153 .cloned()
12154 .collect::<HashSet<_>>();
12155 if !languages_affected.is_empty() {
12156 self.refresh_inlay_hints(
12157 InlayHintRefreshReason::BufferEdited(languages_affected),
12158 cx,
12159 );
12160 }
12161 }
12162 }
12163
12164 let Some(project) = &self.project else { return };
12165 let telemetry = project.read(cx).client().telemetry().clone();
12166 refresh_linked_ranges(self, cx);
12167 telemetry.log_edit_event("editor");
12168 }
12169 multi_buffer::Event::ExcerptsAdded {
12170 buffer,
12171 predecessor,
12172 excerpts,
12173 } => {
12174 self.tasks_update_task = Some(self.refresh_runnables(cx));
12175 cx.emit(EditorEvent::ExcerptsAdded {
12176 buffer: buffer.clone(),
12177 predecessor: *predecessor,
12178 excerpts: excerpts.clone(),
12179 });
12180 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12181 }
12182 multi_buffer::Event::ExcerptsRemoved { ids } => {
12183 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12184 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12185 }
12186 multi_buffer::Event::ExcerptsEdited { ids } => {
12187 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12188 }
12189 multi_buffer::Event::ExcerptsExpanded { ids } => {
12190 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12191 }
12192 multi_buffer::Event::Reparsed(buffer_id) => {
12193 self.tasks_update_task = Some(self.refresh_runnables(cx));
12194
12195 cx.emit(EditorEvent::Reparsed(*buffer_id));
12196 }
12197 multi_buffer::Event::LanguageChanged(buffer_id) => {
12198 linked_editing_ranges::refresh_linked_ranges(self, cx);
12199 cx.emit(EditorEvent::Reparsed(*buffer_id));
12200 cx.notify();
12201 }
12202 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12203 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12204 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12205 cx.emit(EditorEvent::TitleChanged)
12206 }
12207 multi_buffer::Event::DiffBaseChanged => {
12208 self.scrollbar_marker_state.dirty = true;
12209 cx.emit(EditorEvent::DiffBaseChanged);
12210 cx.notify();
12211 }
12212 multi_buffer::Event::DiffUpdated { buffer } => {
12213 self.sync_expanded_diff_hunks(buffer.clone(), cx);
12214 cx.notify();
12215 }
12216 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12217 multi_buffer::Event::DiagnosticsUpdated => {
12218 self.refresh_active_diagnostics(cx);
12219 self.scrollbar_marker_state.dirty = true;
12220 cx.notify();
12221 }
12222 _ => {}
12223 };
12224 }
12225
12226 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12227 cx.notify();
12228 }
12229
12230 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12231 self.tasks_update_task = Some(self.refresh_runnables(cx));
12232 self.refresh_inline_completion(true, false, cx);
12233 self.refresh_inlay_hints(
12234 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12235 self.selections.newest_anchor().head(),
12236 &self.buffer.read(cx).snapshot(cx),
12237 cx,
12238 )),
12239 cx,
12240 );
12241
12242 let old_cursor_shape = self.cursor_shape;
12243
12244 {
12245 let editor_settings = EditorSettings::get_global(cx);
12246 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12247 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12248 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12249 }
12250
12251 if old_cursor_shape != self.cursor_shape {
12252 cx.emit(EditorEvent::CursorShapeChanged);
12253 }
12254
12255 let project_settings = ProjectSettings::get_global(cx);
12256 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12257
12258 if self.mode == EditorMode::Full {
12259 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12260 if self.git_blame_inline_enabled != inline_blame_enabled {
12261 self.toggle_git_blame_inline_internal(false, cx);
12262 }
12263 }
12264
12265 cx.notify();
12266 }
12267
12268 pub fn set_searchable(&mut self, searchable: bool) {
12269 self.searchable = searchable;
12270 }
12271
12272 pub fn searchable(&self) -> bool {
12273 self.searchable
12274 }
12275
12276 fn open_proposed_changes_editor(
12277 &mut self,
12278 _: &OpenProposedChangesEditor,
12279 cx: &mut ViewContext<Self>,
12280 ) {
12281 let Some(workspace) = self.workspace() else {
12282 cx.propagate();
12283 return;
12284 };
12285
12286 let buffer = self.buffer.read(cx);
12287 let mut new_selections_by_buffer = HashMap::default();
12288 for selection in self.selections.all::<usize>(cx) {
12289 for (buffer, range, _) in
12290 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12291 {
12292 let mut range = range.to_point(buffer.read(cx));
12293 range.start.column = 0;
12294 range.end.column = buffer.read(cx).line_len(range.end.row);
12295 new_selections_by_buffer
12296 .entry(buffer)
12297 .or_insert(Vec::new())
12298 .push(range)
12299 }
12300 }
12301
12302 let proposed_changes_buffers = new_selections_by_buffer
12303 .into_iter()
12304 .map(|(buffer, ranges)| ProposedChangesBuffer { buffer, ranges })
12305 .collect::<Vec<_>>();
12306 let proposed_changes_editor = cx.new_view(|cx| {
12307 ProposedChangesEditor::new(proposed_changes_buffers, self.project.clone(), cx)
12308 });
12309
12310 cx.window_context().defer(move |cx| {
12311 workspace.update(cx, |workspace, cx| {
12312 workspace.active_pane().update(cx, |pane, cx| {
12313 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12314 });
12315 });
12316 });
12317 }
12318
12319 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12320 self.open_excerpts_common(true, cx)
12321 }
12322
12323 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12324 self.open_excerpts_common(false, cx)
12325 }
12326
12327 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
12328 let buffer = self.buffer.read(cx);
12329 if buffer.is_singleton() {
12330 cx.propagate();
12331 return;
12332 }
12333
12334 let Some(workspace) = self.workspace() else {
12335 cx.propagate();
12336 return;
12337 };
12338
12339 let mut new_selections_by_buffer = HashMap::default();
12340 for selection in self.selections.all::<usize>(cx) {
12341 for (buffer, mut range, _) in
12342 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12343 {
12344 if selection.reversed {
12345 mem::swap(&mut range.start, &mut range.end);
12346 }
12347 new_selections_by_buffer
12348 .entry(buffer)
12349 .or_insert(Vec::new())
12350 .push(range)
12351 }
12352 }
12353
12354 // We defer the pane interaction because we ourselves are a workspace item
12355 // and activating a new item causes the pane to call a method on us reentrantly,
12356 // which panics if we're on the stack.
12357 cx.window_context().defer(move |cx| {
12358 workspace.update(cx, |workspace, cx| {
12359 let pane = if split {
12360 workspace.adjacent_pane(cx)
12361 } else {
12362 workspace.active_pane().clone()
12363 };
12364
12365 for (buffer, ranges) in new_selections_by_buffer {
12366 let editor =
12367 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
12368 editor.update(cx, |editor, cx| {
12369 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
12370 s.select_ranges(ranges);
12371 });
12372 });
12373 }
12374 })
12375 });
12376 }
12377
12378 fn jump(
12379 &mut self,
12380 path: ProjectPath,
12381 position: Point,
12382 anchor: language::Anchor,
12383 offset_from_top: u32,
12384 cx: &mut ViewContext<Self>,
12385 ) {
12386 let workspace = self.workspace();
12387 cx.spawn(|_, mut cx| async move {
12388 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
12389 let editor = workspace.update(&mut cx, |workspace, cx| {
12390 // Reset the preview item id before opening the new item
12391 workspace.active_pane().update(cx, |pane, cx| {
12392 pane.set_preview_item_id(None, cx);
12393 });
12394 workspace.open_path_preview(path, None, true, true, cx)
12395 })?;
12396 let editor = editor
12397 .await?
12398 .downcast::<Editor>()
12399 .ok_or_else(|| anyhow!("opened item was not an editor"))?
12400 .downgrade();
12401 editor.update(&mut cx, |editor, cx| {
12402 let buffer = editor
12403 .buffer()
12404 .read(cx)
12405 .as_singleton()
12406 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
12407 let buffer = buffer.read(cx);
12408 let cursor = if buffer.can_resolve(&anchor) {
12409 language::ToPoint::to_point(&anchor, buffer)
12410 } else {
12411 buffer.clip_point(position, Bias::Left)
12412 };
12413
12414 let nav_history = editor.nav_history.take();
12415 editor.change_selections(
12416 Some(Autoscroll::top_relative(offset_from_top as usize)),
12417 cx,
12418 |s| {
12419 s.select_ranges([cursor..cursor]);
12420 },
12421 );
12422 editor.nav_history = nav_history;
12423
12424 anyhow::Ok(())
12425 })??;
12426
12427 anyhow::Ok(())
12428 })
12429 .detach_and_log_err(cx);
12430 }
12431
12432 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12433 let snapshot = self.buffer.read(cx).read(cx);
12434 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12435 Some(
12436 ranges
12437 .iter()
12438 .map(move |range| {
12439 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12440 })
12441 .collect(),
12442 )
12443 }
12444
12445 fn selection_replacement_ranges(
12446 &self,
12447 range: Range<OffsetUtf16>,
12448 cx: &AppContext,
12449 ) -> Vec<Range<OffsetUtf16>> {
12450 let selections = self.selections.all::<OffsetUtf16>(cx);
12451 let newest_selection = selections
12452 .iter()
12453 .max_by_key(|selection| selection.id)
12454 .unwrap();
12455 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12456 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12457 let snapshot = self.buffer.read(cx).read(cx);
12458 selections
12459 .into_iter()
12460 .map(|mut selection| {
12461 selection.start.0 =
12462 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12463 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12464 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12465 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12466 })
12467 .collect()
12468 }
12469
12470 fn report_editor_event(
12471 &self,
12472 operation: &'static str,
12473 file_extension: Option<String>,
12474 cx: &AppContext,
12475 ) {
12476 if cfg!(any(test, feature = "test-support")) {
12477 return;
12478 }
12479
12480 let Some(project) = &self.project else { return };
12481
12482 // If None, we are in a file without an extension
12483 let file = self
12484 .buffer
12485 .read(cx)
12486 .as_singleton()
12487 .and_then(|b| b.read(cx).file());
12488 let file_extension = file_extension.or(file
12489 .as_ref()
12490 .and_then(|file| Path::new(file.file_name(cx)).extension())
12491 .and_then(|e| e.to_str())
12492 .map(|a| a.to_string()));
12493
12494 let vim_mode = cx
12495 .global::<SettingsStore>()
12496 .raw_user_settings()
12497 .get("vim_mode")
12498 == Some(&serde_json::Value::Bool(true));
12499
12500 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12501 == language::language_settings::InlineCompletionProvider::Copilot;
12502 let copilot_enabled_for_language = self
12503 .buffer
12504 .read(cx)
12505 .settings_at(0, cx)
12506 .show_inline_completions;
12507
12508 let telemetry = project.read(cx).client().telemetry().clone();
12509 telemetry.report_editor_event(
12510 file_extension,
12511 vim_mode,
12512 operation,
12513 copilot_enabled,
12514 copilot_enabled_for_language,
12515 )
12516 }
12517
12518 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12519 /// with each line being an array of {text, highlight} objects.
12520 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12521 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12522 return;
12523 };
12524
12525 #[derive(Serialize)]
12526 struct Chunk<'a> {
12527 text: String,
12528 highlight: Option<&'a str>,
12529 }
12530
12531 let snapshot = buffer.read(cx).snapshot();
12532 let range = self
12533 .selected_text_range(false, cx)
12534 .and_then(|selection| {
12535 if selection.range.is_empty() {
12536 None
12537 } else {
12538 Some(selection.range)
12539 }
12540 })
12541 .unwrap_or_else(|| 0..snapshot.len());
12542
12543 let chunks = snapshot.chunks(range, true);
12544 let mut lines = Vec::new();
12545 let mut line: VecDeque<Chunk> = VecDeque::new();
12546
12547 let Some(style) = self.style.as_ref() else {
12548 return;
12549 };
12550
12551 for chunk in chunks {
12552 let highlight = chunk
12553 .syntax_highlight_id
12554 .and_then(|id| id.name(&style.syntax));
12555 let mut chunk_lines = chunk.text.split('\n').peekable();
12556 while let Some(text) = chunk_lines.next() {
12557 let mut merged_with_last_token = false;
12558 if let Some(last_token) = line.back_mut() {
12559 if last_token.highlight == highlight {
12560 last_token.text.push_str(text);
12561 merged_with_last_token = true;
12562 }
12563 }
12564
12565 if !merged_with_last_token {
12566 line.push_back(Chunk {
12567 text: text.into(),
12568 highlight,
12569 });
12570 }
12571
12572 if chunk_lines.peek().is_some() {
12573 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12574 line.pop_front();
12575 }
12576 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12577 line.pop_back();
12578 }
12579
12580 lines.push(mem::take(&mut line));
12581 }
12582 }
12583 }
12584
12585 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12586 return;
12587 };
12588 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12589 }
12590
12591 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12592 &self.inlay_hint_cache
12593 }
12594
12595 pub fn replay_insert_event(
12596 &mut self,
12597 text: &str,
12598 relative_utf16_range: Option<Range<isize>>,
12599 cx: &mut ViewContext<Self>,
12600 ) {
12601 if !self.input_enabled {
12602 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12603 return;
12604 }
12605 if let Some(relative_utf16_range) = relative_utf16_range {
12606 let selections = self.selections.all::<OffsetUtf16>(cx);
12607 self.change_selections(None, cx, |s| {
12608 let new_ranges = selections.into_iter().map(|range| {
12609 let start = OffsetUtf16(
12610 range
12611 .head()
12612 .0
12613 .saturating_add_signed(relative_utf16_range.start),
12614 );
12615 let end = OffsetUtf16(
12616 range
12617 .head()
12618 .0
12619 .saturating_add_signed(relative_utf16_range.end),
12620 );
12621 start..end
12622 });
12623 s.select_ranges(new_ranges);
12624 });
12625 }
12626
12627 self.handle_input(text, cx);
12628 }
12629
12630 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12631 let Some(project) = self.project.as_ref() else {
12632 return false;
12633 };
12634 let project = project.read(cx);
12635
12636 let mut supports = false;
12637 self.buffer().read(cx).for_each_buffer(|buffer| {
12638 if !supports {
12639 supports = project
12640 .language_servers_for_buffer(buffer.read(cx), cx)
12641 .any(
12642 |(_, server)| match server.capabilities().inlay_hint_provider {
12643 Some(lsp::OneOf::Left(enabled)) => enabled,
12644 Some(lsp::OneOf::Right(_)) => true,
12645 None => false,
12646 },
12647 )
12648 }
12649 });
12650 supports
12651 }
12652
12653 pub fn focus(&self, cx: &mut WindowContext) {
12654 cx.focus(&self.focus_handle)
12655 }
12656
12657 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12658 self.focus_handle.is_focused(cx)
12659 }
12660
12661 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12662 cx.emit(EditorEvent::Focused);
12663
12664 if let Some(descendant) = self
12665 .last_focused_descendant
12666 .take()
12667 .and_then(|descendant| descendant.upgrade())
12668 {
12669 cx.focus(&descendant);
12670 } else {
12671 if let Some(blame) = self.blame.as_ref() {
12672 blame.update(cx, GitBlame::focus)
12673 }
12674
12675 self.blink_manager.update(cx, BlinkManager::enable);
12676 self.show_cursor_names(cx);
12677 self.buffer.update(cx, |buffer, cx| {
12678 buffer.finalize_last_transaction(cx);
12679 if self.leader_peer_id.is_none() {
12680 buffer.set_active_selections(
12681 &self.selections.disjoint_anchors(),
12682 self.selections.line_mode,
12683 self.cursor_shape,
12684 cx,
12685 );
12686 }
12687 });
12688 }
12689 }
12690
12691 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12692 cx.emit(EditorEvent::FocusedIn)
12693 }
12694
12695 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12696 if event.blurred != self.focus_handle {
12697 self.last_focused_descendant = Some(event.blurred);
12698 }
12699 }
12700
12701 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12702 self.blink_manager.update(cx, BlinkManager::disable);
12703 self.buffer
12704 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12705
12706 if let Some(blame) = self.blame.as_ref() {
12707 blame.update(cx, GitBlame::blur)
12708 }
12709 if !self.hover_state.focused(cx) {
12710 hide_hover(self, cx);
12711 }
12712
12713 self.hide_context_menu(cx);
12714 cx.emit(EditorEvent::Blurred);
12715 cx.notify();
12716 }
12717
12718 pub fn register_action<A: Action>(
12719 &mut self,
12720 listener: impl Fn(&A, &mut WindowContext) + 'static,
12721 ) -> Subscription {
12722 let id = self.next_editor_action_id.post_inc();
12723 let listener = Arc::new(listener);
12724 self.editor_actions.borrow_mut().insert(
12725 id,
12726 Box::new(move |cx| {
12727 let cx = cx.window_context();
12728 let listener = listener.clone();
12729 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12730 let action = action.downcast_ref().unwrap();
12731 if phase == DispatchPhase::Bubble {
12732 listener(action, cx)
12733 }
12734 })
12735 }),
12736 );
12737
12738 let editor_actions = self.editor_actions.clone();
12739 Subscription::new(move || {
12740 editor_actions.borrow_mut().remove(&id);
12741 })
12742 }
12743
12744 pub fn file_header_size(&self) -> u32 {
12745 self.file_header_size
12746 }
12747
12748 pub fn revert(
12749 &mut self,
12750 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12751 cx: &mut ViewContext<Self>,
12752 ) {
12753 self.buffer().update(cx, |multi_buffer, cx| {
12754 for (buffer_id, changes) in revert_changes {
12755 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12756 buffer.update(cx, |buffer, cx| {
12757 buffer.edit(
12758 changes.into_iter().map(|(range, text)| {
12759 (range, text.to_string().map(Arc::<str>::from))
12760 }),
12761 None,
12762 cx,
12763 );
12764 });
12765 }
12766 }
12767 });
12768 self.change_selections(None, cx, |selections| selections.refresh());
12769 }
12770
12771 pub fn to_pixel_point(
12772 &mut self,
12773 source: multi_buffer::Anchor,
12774 editor_snapshot: &EditorSnapshot,
12775 cx: &mut ViewContext<Self>,
12776 ) -> Option<gpui::Point<Pixels>> {
12777 let source_point = source.to_display_point(editor_snapshot);
12778 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12779 }
12780
12781 pub fn display_to_pixel_point(
12782 &mut self,
12783 source: DisplayPoint,
12784 editor_snapshot: &EditorSnapshot,
12785 cx: &mut ViewContext<Self>,
12786 ) -> Option<gpui::Point<Pixels>> {
12787 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12788 let text_layout_details = self.text_layout_details(cx);
12789 let scroll_top = text_layout_details
12790 .scroll_anchor
12791 .scroll_position(editor_snapshot)
12792 .y;
12793
12794 if source.row().as_f32() < scroll_top.floor() {
12795 return None;
12796 }
12797 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12798 let source_y = line_height * (source.row().as_f32() - scroll_top);
12799 Some(gpui::Point::new(source_x, source_y))
12800 }
12801
12802 pub fn has_active_completions_menu(&self) -> bool {
12803 self.context_menu.read().as_ref().map_or(false, |menu| {
12804 menu.visible() && matches!(menu, ContextMenu::Completions(_))
12805 })
12806 }
12807
12808 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12809 self.addons
12810 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
12811 }
12812
12813 pub fn unregister_addon<T: Addon>(&mut self) {
12814 self.addons.remove(&std::any::TypeId::of::<T>());
12815 }
12816
12817 pub fn addon<T: Addon>(&self) -> Option<&T> {
12818 let type_id = std::any::TypeId::of::<T>();
12819 self.addons
12820 .get(&type_id)
12821 .and_then(|item| item.to_any().downcast_ref::<T>())
12822 }
12823}
12824
12825fn hunks_for_selections(
12826 multi_buffer_snapshot: &MultiBufferSnapshot,
12827 selections: &[Selection<Anchor>],
12828) -> Vec<MultiBufferDiffHunk> {
12829 let buffer_rows_for_selections = selections.iter().map(|selection| {
12830 let head = selection.head();
12831 let tail = selection.tail();
12832 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
12833 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
12834 if start > end {
12835 end..start
12836 } else {
12837 start..end
12838 }
12839 });
12840
12841 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
12842}
12843
12844pub fn hunks_for_rows(
12845 rows: impl Iterator<Item = Range<MultiBufferRow>>,
12846 multi_buffer_snapshot: &MultiBufferSnapshot,
12847) -> Vec<MultiBufferDiffHunk> {
12848 let mut hunks = Vec::new();
12849 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
12850 HashMap::default();
12851 for selected_multi_buffer_rows in rows {
12852 let query_rows =
12853 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
12854 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
12855 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
12856 // when the caret is just above or just below the deleted hunk.
12857 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
12858 let related_to_selection = if allow_adjacent {
12859 hunk.row_range.overlaps(&query_rows)
12860 || hunk.row_range.start == query_rows.end
12861 || hunk.row_range.end == query_rows.start
12862 } else {
12863 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
12864 // `hunk.row_range` is exclusive (e.g. [2..3] means 2nd row is selected)
12865 hunk.row_range.overlaps(&selected_multi_buffer_rows)
12866 || selected_multi_buffer_rows.end == hunk.row_range.start
12867 };
12868 if related_to_selection {
12869 if !processed_buffer_rows
12870 .entry(hunk.buffer_id)
12871 .or_default()
12872 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
12873 {
12874 continue;
12875 }
12876 hunks.push(hunk);
12877 }
12878 }
12879 }
12880
12881 hunks
12882}
12883
12884pub trait CollaborationHub {
12885 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
12886 fn user_participant_indices<'a>(
12887 &self,
12888 cx: &'a AppContext,
12889 ) -> &'a HashMap<u64, ParticipantIndex>;
12890 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
12891}
12892
12893impl CollaborationHub for Model<Project> {
12894 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
12895 self.read(cx).collaborators()
12896 }
12897
12898 fn user_participant_indices<'a>(
12899 &self,
12900 cx: &'a AppContext,
12901 ) -> &'a HashMap<u64, ParticipantIndex> {
12902 self.read(cx).user_store().read(cx).participant_indices()
12903 }
12904
12905 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
12906 let this = self.read(cx);
12907 let user_ids = this.collaborators().values().map(|c| c.user_id);
12908 this.user_store().read_with(cx, |user_store, cx| {
12909 user_store.participant_names(user_ids, cx)
12910 })
12911 }
12912}
12913
12914pub trait CompletionProvider {
12915 fn completions(
12916 &self,
12917 buffer: &Model<Buffer>,
12918 buffer_position: text::Anchor,
12919 trigger: CompletionContext,
12920 cx: &mut ViewContext<Editor>,
12921 ) -> Task<Result<Vec<Completion>>>;
12922
12923 fn resolve_completions(
12924 &self,
12925 buffer: Model<Buffer>,
12926 completion_indices: Vec<usize>,
12927 completions: Arc<RwLock<Box<[Completion]>>>,
12928 cx: &mut ViewContext<Editor>,
12929 ) -> Task<Result<bool>>;
12930
12931 fn apply_additional_edits_for_completion(
12932 &self,
12933 buffer: Model<Buffer>,
12934 completion: Completion,
12935 push_to_history: bool,
12936 cx: &mut ViewContext<Editor>,
12937 ) -> Task<Result<Option<language::Transaction>>>;
12938
12939 fn is_completion_trigger(
12940 &self,
12941 buffer: &Model<Buffer>,
12942 position: language::Anchor,
12943 text: &str,
12944 trigger_in_words: bool,
12945 cx: &mut ViewContext<Editor>,
12946 ) -> bool;
12947
12948 fn sort_completions(&self) -> bool {
12949 true
12950 }
12951}
12952
12953pub trait CodeActionProvider {
12954 fn code_actions(
12955 &self,
12956 buffer: &Model<Buffer>,
12957 range: Range<text::Anchor>,
12958 cx: &mut WindowContext,
12959 ) -> Task<Result<Vec<CodeAction>>>;
12960
12961 fn apply_code_action(
12962 &self,
12963 buffer_handle: Model<Buffer>,
12964 action: CodeAction,
12965 excerpt_id: ExcerptId,
12966 push_to_history: bool,
12967 cx: &mut WindowContext,
12968 ) -> Task<Result<ProjectTransaction>>;
12969}
12970
12971impl CodeActionProvider for Model<Project> {
12972 fn code_actions(
12973 &self,
12974 buffer: &Model<Buffer>,
12975 range: Range<text::Anchor>,
12976 cx: &mut WindowContext,
12977 ) -> Task<Result<Vec<CodeAction>>> {
12978 self.update(cx, |project, cx| project.code_actions(buffer, range, cx))
12979 }
12980
12981 fn apply_code_action(
12982 &self,
12983 buffer_handle: Model<Buffer>,
12984 action: CodeAction,
12985 _excerpt_id: ExcerptId,
12986 push_to_history: bool,
12987 cx: &mut WindowContext,
12988 ) -> Task<Result<ProjectTransaction>> {
12989 self.update(cx, |project, cx| {
12990 project.apply_code_action(buffer_handle, action, push_to_history, cx)
12991 })
12992 }
12993}
12994
12995fn snippet_completions(
12996 project: &Project,
12997 buffer: &Model<Buffer>,
12998 buffer_position: text::Anchor,
12999 cx: &mut AppContext,
13000) -> Vec<Completion> {
13001 let language = buffer.read(cx).language_at(buffer_position);
13002 let language_name = language.as_ref().map(|language| language.lsp_id());
13003 let snippet_store = project.snippets().read(cx);
13004 let snippets = snippet_store.snippets_for(language_name, cx);
13005
13006 if snippets.is_empty() {
13007 return vec![];
13008 }
13009 let snapshot = buffer.read(cx).text_snapshot();
13010 let chunks = snapshot.reversed_chunks_in_range(text::Anchor::MIN..buffer_position);
13011
13012 let mut lines = chunks.lines();
13013 let Some(line_at) = lines.next().filter(|line| !line.is_empty()) else {
13014 return vec![];
13015 };
13016
13017 let scope = language.map(|language| language.default_scope());
13018 let classifier = CharClassifier::new(scope).for_completion(true);
13019 let mut last_word = line_at
13020 .chars()
13021 .rev()
13022 .take_while(|c| classifier.is_word(*c))
13023 .collect::<String>();
13024 last_word = last_word.chars().rev().collect();
13025 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13026 let to_lsp = |point: &text::Anchor| {
13027 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13028 point_to_lsp(end)
13029 };
13030 let lsp_end = to_lsp(&buffer_position);
13031 snippets
13032 .into_iter()
13033 .filter_map(|snippet| {
13034 let matching_prefix = snippet
13035 .prefix
13036 .iter()
13037 .find(|prefix| prefix.starts_with(&last_word))?;
13038 let start = as_offset - last_word.len();
13039 let start = snapshot.anchor_before(start);
13040 let range = start..buffer_position;
13041 let lsp_start = to_lsp(&start);
13042 let lsp_range = lsp::Range {
13043 start: lsp_start,
13044 end: lsp_end,
13045 };
13046 Some(Completion {
13047 old_range: range,
13048 new_text: snippet.body.clone(),
13049 label: CodeLabel {
13050 text: matching_prefix.clone(),
13051 runs: vec![],
13052 filter_range: 0..matching_prefix.len(),
13053 },
13054 server_id: LanguageServerId(usize::MAX),
13055 documentation: snippet.description.clone().map(Documentation::SingleLine),
13056 lsp_completion: lsp::CompletionItem {
13057 label: snippet.prefix.first().unwrap().clone(),
13058 kind: Some(CompletionItemKind::SNIPPET),
13059 label_details: snippet.description.as_ref().map(|description| {
13060 lsp::CompletionItemLabelDetails {
13061 detail: Some(description.clone()),
13062 description: None,
13063 }
13064 }),
13065 insert_text_format: Some(InsertTextFormat::SNIPPET),
13066 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13067 lsp::InsertReplaceEdit {
13068 new_text: snippet.body.clone(),
13069 insert: lsp_range,
13070 replace: lsp_range,
13071 },
13072 )),
13073 filter_text: Some(snippet.body.clone()),
13074 sort_text: Some(char::MAX.to_string()),
13075 ..Default::default()
13076 },
13077 confirm: None,
13078 })
13079 })
13080 .collect()
13081}
13082
13083impl CompletionProvider for Model<Project> {
13084 fn completions(
13085 &self,
13086 buffer: &Model<Buffer>,
13087 buffer_position: text::Anchor,
13088 options: CompletionContext,
13089 cx: &mut ViewContext<Editor>,
13090 ) -> Task<Result<Vec<Completion>>> {
13091 self.update(cx, |project, cx| {
13092 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13093 let project_completions = project.completions(buffer, buffer_position, options, cx);
13094 cx.background_executor().spawn(async move {
13095 let mut completions = project_completions.await?;
13096 //let snippets = snippets.into_iter().;
13097 completions.extend(snippets);
13098 Ok(completions)
13099 })
13100 })
13101 }
13102
13103 fn resolve_completions(
13104 &self,
13105 buffer: Model<Buffer>,
13106 completion_indices: Vec<usize>,
13107 completions: Arc<RwLock<Box<[Completion]>>>,
13108 cx: &mut ViewContext<Editor>,
13109 ) -> Task<Result<bool>> {
13110 self.update(cx, |project, cx| {
13111 project.resolve_completions(buffer, completion_indices, completions, cx)
13112 })
13113 }
13114
13115 fn apply_additional_edits_for_completion(
13116 &self,
13117 buffer: Model<Buffer>,
13118 completion: Completion,
13119 push_to_history: bool,
13120 cx: &mut ViewContext<Editor>,
13121 ) -> Task<Result<Option<language::Transaction>>> {
13122 self.update(cx, |project, cx| {
13123 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13124 })
13125 }
13126
13127 fn is_completion_trigger(
13128 &self,
13129 buffer: &Model<Buffer>,
13130 position: language::Anchor,
13131 text: &str,
13132 trigger_in_words: bool,
13133 cx: &mut ViewContext<Editor>,
13134 ) -> bool {
13135 if !EditorSettings::get_global(cx).show_completions_on_input {
13136 return false;
13137 }
13138
13139 let mut chars = text.chars();
13140 let char = if let Some(char) = chars.next() {
13141 char
13142 } else {
13143 return false;
13144 };
13145 if chars.next().is_some() {
13146 return false;
13147 }
13148
13149 let buffer = buffer.read(cx);
13150 let classifier = buffer
13151 .snapshot()
13152 .char_classifier_at(position)
13153 .for_completion(true);
13154 if trigger_in_words && classifier.is_word(char) {
13155 return true;
13156 }
13157
13158 buffer
13159 .completion_triggers()
13160 .iter()
13161 .any(|string| string == text)
13162 }
13163}
13164
13165fn inlay_hint_settings(
13166 location: Anchor,
13167 snapshot: &MultiBufferSnapshot,
13168 cx: &mut ViewContext<'_, Editor>,
13169) -> InlayHintSettings {
13170 let file = snapshot.file_at(location);
13171 let language = snapshot.language_at(location);
13172 let settings = all_language_settings(file, cx);
13173 settings
13174 .language(language.map(|l| l.name()).as_ref())
13175 .inlay_hints
13176}
13177
13178fn consume_contiguous_rows(
13179 contiguous_row_selections: &mut Vec<Selection<Point>>,
13180 selection: &Selection<Point>,
13181 display_map: &DisplaySnapshot,
13182 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
13183) -> (MultiBufferRow, MultiBufferRow) {
13184 contiguous_row_selections.push(selection.clone());
13185 let start_row = MultiBufferRow(selection.start.row);
13186 let mut end_row = ending_row(selection, display_map);
13187
13188 while let Some(next_selection) = selections.peek() {
13189 if next_selection.start.row <= end_row.0 {
13190 end_row = ending_row(next_selection, display_map);
13191 contiguous_row_selections.push(selections.next().unwrap().clone());
13192 } else {
13193 break;
13194 }
13195 }
13196 (start_row, end_row)
13197}
13198
13199fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13200 if next_selection.end.column > 0 || next_selection.is_empty() {
13201 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13202 } else {
13203 MultiBufferRow(next_selection.end.row)
13204 }
13205}
13206
13207impl EditorSnapshot {
13208 pub fn remote_selections_in_range<'a>(
13209 &'a self,
13210 range: &'a Range<Anchor>,
13211 collaboration_hub: &dyn CollaborationHub,
13212 cx: &'a AppContext,
13213 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13214 let participant_names = collaboration_hub.user_names(cx);
13215 let participant_indices = collaboration_hub.user_participant_indices(cx);
13216 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13217 let collaborators_by_replica_id = collaborators_by_peer_id
13218 .iter()
13219 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13220 .collect::<HashMap<_, _>>();
13221 self.buffer_snapshot
13222 .selections_in_range(range, false)
13223 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13224 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13225 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13226 let user_name = participant_names.get(&collaborator.user_id).cloned();
13227 Some(RemoteSelection {
13228 replica_id,
13229 selection,
13230 cursor_shape,
13231 line_mode,
13232 participant_index,
13233 peer_id: collaborator.peer_id,
13234 user_name,
13235 })
13236 })
13237 }
13238
13239 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13240 self.display_snapshot.buffer_snapshot.language_at(position)
13241 }
13242
13243 pub fn is_focused(&self) -> bool {
13244 self.is_focused
13245 }
13246
13247 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13248 self.placeholder_text.as_ref()
13249 }
13250
13251 pub fn scroll_position(&self) -> gpui::Point<f32> {
13252 self.scroll_anchor.scroll_position(&self.display_snapshot)
13253 }
13254
13255 fn gutter_dimensions(
13256 &self,
13257 font_id: FontId,
13258 font_size: Pixels,
13259 em_width: Pixels,
13260 em_advance: Pixels,
13261 max_line_number_width: Pixels,
13262 cx: &AppContext,
13263 ) -> GutterDimensions {
13264 if !self.show_gutter {
13265 return GutterDimensions::default();
13266 }
13267 let descent = cx.text_system().descent(font_id, font_size);
13268
13269 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13270 matches!(
13271 ProjectSettings::get_global(cx).git.git_gutter,
13272 Some(GitGutterSetting::TrackedFiles)
13273 )
13274 });
13275 let gutter_settings = EditorSettings::get_global(cx).gutter;
13276 let show_line_numbers = self
13277 .show_line_numbers
13278 .unwrap_or(gutter_settings.line_numbers);
13279 let line_gutter_width = if show_line_numbers {
13280 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13281 let min_width_for_number_on_gutter = em_advance * 4.0;
13282 max_line_number_width.max(min_width_for_number_on_gutter)
13283 } else {
13284 0.0.into()
13285 };
13286
13287 let show_code_actions = self
13288 .show_code_actions
13289 .unwrap_or(gutter_settings.code_actions);
13290
13291 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13292
13293 let git_blame_entries_width =
13294 self.git_blame_gutter_max_author_length
13295 .map(|max_author_length| {
13296 // Length of the author name, but also space for the commit hash,
13297 // the spacing and the timestamp.
13298 let max_char_count = max_author_length
13299 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13300 + 7 // length of commit sha
13301 + 14 // length of max relative timestamp ("60 minutes ago")
13302 + 4; // gaps and margins
13303
13304 em_advance * max_char_count
13305 });
13306
13307 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13308 left_padding += if show_code_actions || show_runnables {
13309 em_width * 3.0
13310 } else if show_git_gutter && show_line_numbers {
13311 em_width * 2.0
13312 } else if show_git_gutter || show_line_numbers {
13313 em_width
13314 } else {
13315 px(0.)
13316 };
13317
13318 let right_padding = if gutter_settings.folds && show_line_numbers {
13319 em_width * 4.0
13320 } else if gutter_settings.folds {
13321 em_width * 3.0
13322 } else if show_line_numbers {
13323 em_width
13324 } else {
13325 px(0.)
13326 };
13327
13328 GutterDimensions {
13329 left_padding,
13330 right_padding,
13331 width: line_gutter_width + left_padding + right_padding,
13332 margin: -descent,
13333 git_blame_entries_width,
13334 }
13335 }
13336
13337 pub fn render_fold_toggle(
13338 &self,
13339 buffer_row: MultiBufferRow,
13340 row_contains_cursor: bool,
13341 editor: View<Editor>,
13342 cx: &mut WindowContext,
13343 ) -> Option<AnyElement> {
13344 let folded = self.is_line_folded(buffer_row);
13345
13346 if let Some(crease) = self
13347 .crease_snapshot
13348 .query_row(buffer_row, &self.buffer_snapshot)
13349 {
13350 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
13351 if folded {
13352 editor.update(cx, |editor, cx| {
13353 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
13354 });
13355 } else {
13356 editor.update(cx, |editor, cx| {
13357 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
13358 });
13359 }
13360 });
13361
13362 Some((crease.render_toggle)(
13363 buffer_row,
13364 folded,
13365 toggle_callback,
13366 cx,
13367 ))
13368 } else if folded
13369 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
13370 {
13371 Some(
13372 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
13373 .selected(folded)
13374 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
13375 if folded {
13376 this.unfold_at(&UnfoldAt { buffer_row }, cx);
13377 } else {
13378 this.fold_at(&FoldAt { buffer_row }, cx);
13379 }
13380 }))
13381 .into_any_element(),
13382 )
13383 } else {
13384 None
13385 }
13386 }
13387
13388 pub fn render_crease_trailer(
13389 &self,
13390 buffer_row: MultiBufferRow,
13391 cx: &mut WindowContext,
13392 ) -> Option<AnyElement> {
13393 let folded = self.is_line_folded(buffer_row);
13394 let crease = self
13395 .crease_snapshot
13396 .query_row(buffer_row, &self.buffer_snapshot)?;
13397 Some((crease.render_trailer)(buffer_row, folded, cx))
13398 }
13399}
13400
13401impl Deref for EditorSnapshot {
13402 type Target = DisplaySnapshot;
13403
13404 fn deref(&self) -> &Self::Target {
13405 &self.display_snapshot
13406 }
13407}
13408
13409#[derive(Clone, Debug, PartialEq, Eq)]
13410pub enum EditorEvent {
13411 InputIgnored {
13412 text: Arc<str>,
13413 },
13414 InputHandled {
13415 utf16_range_to_replace: Option<Range<isize>>,
13416 text: Arc<str>,
13417 },
13418 ExcerptsAdded {
13419 buffer: Model<Buffer>,
13420 predecessor: ExcerptId,
13421 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
13422 },
13423 ExcerptsRemoved {
13424 ids: Vec<ExcerptId>,
13425 },
13426 ExcerptsEdited {
13427 ids: Vec<ExcerptId>,
13428 },
13429 ExcerptsExpanded {
13430 ids: Vec<ExcerptId>,
13431 },
13432 BufferEdited,
13433 Edited {
13434 transaction_id: clock::Lamport,
13435 },
13436 Reparsed(BufferId),
13437 Focused,
13438 FocusedIn,
13439 Blurred,
13440 DirtyChanged,
13441 Saved,
13442 TitleChanged,
13443 DiffBaseChanged,
13444 SelectionsChanged {
13445 local: bool,
13446 },
13447 ScrollPositionChanged {
13448 local: bool,
13449 autoscroll: bool,
13450 },
13451 Closed,
13452 TransactionUndone {
13453 transaction_id: clock::Lamport,
13454 },
13455 TransactionBegun {
13456 transaction_id: clock::Lamport,
13457 },
13458 CursorShapeChanged,
13459}
13460
13461impl EventEmitter<EditorEvent> for Editor {}
13462
13463impl FocusableView for Editor {
13464 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
13465 self.focus_handle.clone()
13466 }
13467}
13468
13469impl Render for Editor {
13470 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
13471 let settings = ThemeSettings::get_global(cx);
13472
13473 let text_style = match self.mode {
13474 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
13475 color: cx.theme().colors().editor_foreground,
13476 font_family: settings.ui_font.family.clone(),
13477 font_features: settings.ui_font.features.clone(),
13478 font_fallbacks: settings.ui_font.fallbacks.clone(),
13479 font_size: rems(0.875).into(),
13480 font_weight: settings.ui_font.weight,
13481 line_height: relative(settings.buffer_line_height.value()),
13482 ..Default::default()
13483 },
13484 EditorMode::Full => TextStyle {
13485 color: cx.theme().colors().editor_foreground,
13486 font_family: settings.buffer_font.family.clone(),
13487 font_features: settings.buffer_font.features.clone(),
13488 font_fallbacks: settings.buffer_font.fallbacks.clone(),
13489 font_size: settings.buffer_font_size(cx).into(),
13490 font_weight: settings.buffer_font.weight,
13491 line_height: relative(settings.buffer_line_height.value()),
13492 ..Default::default()
13493 },
13494 };
13495
13496 let background = match self.mode {
13497 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
13498 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
13499 EditorMode::Full => cx.theme().colors().editor_background,
13500 };
13501
13502 EditorElement::new(
13503 cx.view(),
13504 EditorStyle {
13505 background,
13506 local_player: cx.theme().players().local(),
13507 text: text_style,
13508 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
13509 syntax: cx.theme().syntax().clone(),
13510 status: cx.theme().status().clone(),
13511 inlay_hints_style: make_inlay_hints_style(cx),
13512 suggestions_style: HighlightStyle {
13513 color: Some(cx.theme().status().predictive),
13514 ..HighlightStyle::default()
13515 },
13516 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
13517 },
13518 )
13519 }
13520}
13521
13522impl ViewInputHandler for Editor {
13523 fn text_for_range(
13524 &mut self,
13525 range_utf16: Range<usize>,
13526 cx: &mut ViewContext<Self>,
13527 ) -> Option<String> {
13528 Some(
13529 self.buffer
13530 .read(cx)
13531 .read(cx)
13532 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
13533 .collect(),
13534 )
13535 }
13536
13537 fn selected_text_range(
13538 &mut self,
13539 ignore_disabled_input: bool,
13540 cx: &mut ViewContext<Self>,
13541 ) -> Option<UTF16Selection> {
13542 // Prevent the IME menu from appearing when holding down an alphabetic key
13543 // while input is disabled.
13544 if !ignore_disabled_input && !self.input_enabled {
13545 return None;
13546 }
13547
13548 let selection = self.selections.newest::<OffsetUtf16>(cx);
13549 let range = selection.range();
13550
13551 Some(UTF16Selection {
13552 range: range.start.0..range.end.0,
13553 reversed: selection.reversed,
13554 })
13555 }
13556
13557 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
13558 let snapshot = self.buffer.read(cx).read(cx);
13559 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
13560 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
13561 }
13562
13563 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
13564 self.clear_highlights::<InputComposition>(cx);
13565 self.ime_transaction.take();
13566 }
13567
13568 fn replace_text_in_range(
13569 &mut self,
13570 range_utf16: Option<Range<usize>>,
13571 text: &str,
13572 cx: &mut ViewContext<Self>,
13573 ) {
13574 if !self.input_enabled {
13575 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13576 return;
13577 }
13578
13579 self.transact(cx, |this, cx| {
13580 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
13581 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13582 Some(this.selection_replacement_ranges(range_utf16, cx))
13583 } else {
13584 this.marked_text_ranges(cx)
13585 };
13586
13587 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
13588 let newest_selection_id = this.selections.newest_anchor().id;
13589 this.selections
13590 .all::<OffsetUtf16>(cx)
13591 .iter()
13592 .zip(ranges_to_replace.iter())
13593 .find_map(|(selection, range)| {
13594 if selection.id == newest_selection_id {
13595 Some(
13596 (range.start.0 as isize - selection.head().0 as isize)
13597 ..(range.end.0 as isize - selection.head().0 as isize),
13598 )
13599 } else {
13600 None
13601 }
13602 })
13603 });
13604
13605 cx.emit(EditorEvent::InputHandled {
13606 utf16_range_to_replace: range_to_replace,
13607 text: text.into(),
13608 });
13609
13610 if let Some(new_selected_ranges) = new_selected_ranges {
13611 this.change_selections(None, cx, |selections| {
13612 selections.select_ranges(new_selected_ranges)
13613 });
13614 this.backspace(&Default::default(), cx);
13615 }
13616
13617 this.handle_input(text, cx);
13618 });
13619
13620 if let Some(transaction) = self.ime_transaction {
13621 self.buffer.update(cx, |buffer, cx| {
13622 buffer.group_until_transaction(transaction, cx);
13623 });
13624 }
13625
13626 self.unmark_text(cx);
13627 }
13628
13629 fn replace_and_mark_text_in_range(
13630 &mut self,
13631 range_utf16: Option<Range<usize>>,
13632 text: &str,
13633 new_selected_range_utf16: Option<Range<usize>>,
13634 cx: &mut ViewContext<Self>,
13635 ) {
13636 if !self.input_enabled {
13637 return;
13638 }
13639
13640 let transaction = self.transact(cx, |this, cx| {
13641 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
13642 let snapshot = this.buffer.read(cx).read(cx);
13643 if let Some(relative_range_utf16) = range_utf16.as_ref() {
13644 for marked_range in &mut marked_ranges {
13645 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
13646 marked_range.start.0 += relative_range_utf16.start;
13647 marked_range.start =
13648 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
13649 marked_range.end =
13650 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
13651 }
13652 }
13653 Some(marked_ranges)
13654 } else if let Some(range_utf16) = range_utf16 {
13655 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13656 Some(this.selection_replacement_ranges(range_utf16, cx))
13657 } else {
13658 None
13659 };
13660
13661 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
13662 let newest_selection_id = this.selections.newest_anchor().id;
13663 this.selections
13664 .all::<OffsetUtf16>(cx)
13665 .iter()
13666 .zip(ranges_to_replace.iter())
13667 .find_map(|(selection, range)| {
13668 if selection.id == newest_selection_id {
13669 Some(
13670 (range.start.0 as isize - selection.head().0 as isize)
13671 ..(range.end.0 as isize - selection.head().0 as isize),
13672 )
13673 } else {
13674 None
13675 }
13676 })
13677 });
13678
13679 cx.emit(EditorEvent::InputHandled {
13680 utf16_range_to_replace: range_to_replace,
13681 text: text.into(),
13682 });
13683
13684 if let Some(ranges) = ranges_to_replace {
13685 this.change_selections(None, cx, |s| s.select_ranges(ranges));
13686 }
13687
13688 let marked_ranges = {
13689 let snapshot = this.buffer.read(cx).read(cx);
13690 this.selections
13691 .disjoint_anchors()
13692 .iter()
13693 .map(|selection| {
13694 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
13695 })
13696 .collect::<Vec<_>>()
13697 };
13698
13699 if text.is_empty() {
13700 this.unmark_text(cx);
13701 } else {
13702 this.highlight_text::<InputComposition>(
13703 marked_ranges.clone(),
13704 HighlightStyle {
13705 underline: Some(UnderlineStyle {
13706 thickness: px(1.),
13707 color: None,
13708 wavy: false,
13709 }),
13710 ..Default::default()
13711 },
13712 cx,
13713 );
13714 }
13715
13716 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
13717 let use_autoclose = this.use_autoclose;
13718 let use_auto_surround = this.use_auto_surround;
13719 this.set_use_autoclose(false);
13720 this.set_use_auto_surround(false);
13721 this.handle_input(text, cx);
13722 this.set_use_autoclose(use_autoclose);
13723 this.set_use_auto_surround(use_auto_surround);
13724
13725 if let Some(new_selected_range) = new_selected_range_utf16 {
13726 let snapshot = this.buffer.read(cx).read(cx);
13727 let new_selected_ranges = marked_ranges
13728 .into_iter()
13729 .map(|marked_range| {
13730 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
13731 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
13732 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
13733 snapshot.clip_offset_utf16(new_start, Bias::Left)
13734 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
13735 })
13736 .collect::<Vec<_>>();
13737
13738 drop(snapshot);
13739 this.change_selections(None, cx, |selections| {
13740 selections.select_ranges(new_selected_ranges)
13741 });
13742 }
13743 });
13744
13745 self.ime_transaction = self.ime_transaction.or(transaction);
13746 if let Some(transaction) = self.ime_transaction {
13747 self.buffer.update(cx, |buffer, cx| {
13748 buffer.group_until_transaction(transaction, cx);
13749 });
13750 }
13751
13752 if self.text_highlights::<InputComposition>(cx).is_none() {
13753 self.ime_transaction.take();
13754 }
13755 }
13756
13757 fn bounds_for_range(
13758 &mut self,
13759 range_utf16: Range<usize>,
13760 element_bounds: gpui::Bounds<Pixels>,
13761 cx: &mut ViewContext<Self>,
13762 ) -> Option<gpui::Bounds<Pixels>> {
13763 let text_layout_details = self.text_layout_details(cx);
13764 let style = &text_layout_details.editor_style;
13765 let font_id = cx.text_system().resolve_font(&style.text.font());
13766 let font_size = style.text.font_size.to_pixels(cx.rem_size());
13767 let line_height = style.text.line_height_in_pixels(cx.rem_size());
13768
13769 let em_width = cx
13770 .text_system()
13771 .typographic_bounds(font_id, font_size, 'm')
13772 .unwrap()
13773 .size
13774 .width;
13775
13776 let snapshot = self.snapshot(cx);
13777 let scroll_position = snapshot.scroll_position();
13778 let scroll_left = scroll_position.x * em_width;
13779
13780 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
13781 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
13782 + self.gutter_dimensions.width;
13783 let y = line_height * (start.row().as_f32() - scroll_position.y);
13784
13785 Some(Bounds {
13786 origin: element_bounds.origin + point(x, y),
13787 size: size(em_width, line_height),
13788 })
13789 }
13790}
13791
13792trait SelectionExt {
13793 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
13794 fn spanned_rows(
13795 &self,
13796 include_end_if_at_line_start: bool,
13797 map: &DisplaySnapshot,
13798 ) -> Range<MultiBufferRow>;
13799}
13800
13801impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
13802 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
13803 let start = self
13804 .start
13805 .to_point(&map.buffer_snapshot)
13806 .to_display_point(map);
13807 let end = self
13808 .end
13809 .to_point(&map.buffer_snapshot)
13810 .to_display_point(map);
13811 if self.reversed {
13812 end..start
13813 } else {
13814 start..end
13815 }
13816 }
13817
13818 fn spanned_rows(
13819 &self,
13820 include_end_if_at_line_start: bool,
13821 map: &DisplaySnapshot,
13822 ) -> Range<MultiBufferRow> {
13823 let start = self.start.to_point(&map.buffer_snapshot);
13824 let mut end = self.end.to_point(&map.buffer_snapshot);
13825 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
13826 end.row -= 1;
13827 }
13828
13829 let buffer_start = map.prev_line_boundary(start).0;
13830 let buffer_end = map.next_line_boundary(end).0;
13831 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
13832 }
13833}
13834
13835impl<T: InvalidationRegion> InvalidationStack<T> {
13836 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
13837 where
13838 S: Clone + ToOffset,
13839 {
13840 while let Some(region) = self.last() {
13841 let all_selections_inside_invalidation_ranges =
13842 if selections.len() == region.ranges().len() {
13843 selections
13844 .iter()
13845 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
13846 .all(|(selection, invalidation_range)| {
13847 let head = selection.head().to_offset(buffer);
13848 invalidation_range.start <= head && invalidation_range.end >= head
13849 })
13850 } else {
13851 false
13852 };
13853
13854 if all_selections_inside_invalidation_ranges {
13855 break;
13856 } else {
13857 self.pop();
13858 }
13859 }
13860 }
13861}
13862
13863impl<T> Default for InvalidationStack<T> {
13864 fn default() -> Self {
13865 Self(Default::default())
13866 }
13867}
13868
13869impl<T> Deref for InvalidationStack<T> {
13870 type Target = Vec<T>;
13871
13872 fn deref(&self) -> &Self::Target {
13873 &self.0
13874 }
13875}
13876
13877impl<T> DerefMut for InvalidationStack<T> {
13878 fn deref_mut(&mut self) -> &mut Self::Target {
13879 &mut self.0
13880 }
13881}
13882
13883impl InvalidationRegion for SnippetState {
13884 fn ranges(&self) -> &[Range<Anchor>] {
13885 &self.ranges[self.active_index]
13886 }
13887}
13888
13889pub fn diagnostic_block_renderer(
13890 diagnostic: Diagnostic,
13891 max_message_rows: Option<u8>,
13892 allow_closing: bool,
13893 _is_valid: bool,
13894) -> RenderBlock {
13895 let (text_without_backticks, code_ranges) =
13896 highlight_diagnostic_message(&diagnostic, max_message_rows);
13897
13898 Box::new(move |cx: &mut BlockContext| {
13899 let group_id: SharedString = cx.block_id.to_string().into();
13900
13901 let mut text_style = cx.text_style().clone();
13902 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
13903 let theme_settings = ThemeSettings::get_global(cx);
13904 text_style.font_family = theme_settings.buffer_font.family.clone();
13905 text_style.font_style = theme_settings.buffer_font.style;
13906 text_style.font_features = theme_settings.buffer_font.features.clone();
13907 text_style.font_weight = theme_settings.buffer_font.weight;
13908
13909 let multi_line_diagnostic = diagnostic.message.contains('\n');
13910
13911 let buttons = |diagnostic: &Diagnostic, block_id: BlockId| {
13912 if multi_line_diagnostic {
13913 v_flex()
13914 } else {
13915 h_flex()
13916 }
13917 .when(allow_closing, |div| {
13918 div.children(diagnostic.is_primary.then(|| {
13919 IconButton::new(("close-block", EntityId::from(block_id)), IconName::XCircle)
13920 .icon_color(Color::Muted)
13921 .size(ButtonSize::Compact)
13922 .style(ButtonStyle::Transparent)
13923 .visible_on_hover(group_id.clone())
13924 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
13925 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
13926 }))
13927 })
13928 .child(
13929 IconButton::new(("copy-block", EntityId::from(block_id)), IconName::Copy)
13930 .icon_color(Color::Muted)
13931 .size(ButtonSize::Compact)
13932 .style(ButtonStyle::Transparent)
13933 .visible_on_hover(group_id.clone())
13934 .on_click({
13935 let message = diagnostic.message.clone();
13936 move |_click, cx| {
13937 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
13938 }
13939 })
13940 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
13941 )
13942 };
13943
13944 let icon_size = buttons(&diagnostic, cx.block_id)
13945 .into_any_element()
13946 .layout_as_root(AvailableSpace::min_size(), cx);
13947
13948 h_flex()
13949 .id(cx.block_id)
13950 .group(group_id.clone())
13951 .relative()
13952 .size_full()
13953 .pl(cx.gutter_dimensions.width)
13954 .w(cx.max_width + cx.gutter_dimensions.width)
13955 .child(
13956 div()
13957 .flex()
13958 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
13959 .flex_shrink(),
13960 )
13961 .child(buttons(&diagnostic, cx.block_id))
13962 .child(div().flex().flex_shrink_0().child(
13963 StyledText::new(text_without_backticks.clone()).with_highlights(
13964 &text_style,
13965 code_ranges.iter().map(|range| {
13966 (
13967 range.clone(),
13968 HighlightStyle {
13969 font_weight: Some(FontWeight::BOLD),
13970 ..Default::default()
13971 },
13972 )
13973 }),
13974 ),
13975 ))
13976 .into_any_element()
13977 })
13978}
13979
13980pub fn highlight_diagnostic_message(
13981 diagnostic: &Diagnostic,
13982 mut max_message_rows: Option<u8>,
13983) -> (SharedString, Vec<Range<usize>>) {
13984 let mut text_without_backticks = String::new();
13985 let mut code_ranges = Vec::new();
13986
13987 if let Some(source) = &diagnostic.source {
13988 text_without_backticks.push_str(source);
13989 code_ranges.push(0..source.len());
13990 text_without_backticks.push_str(": ");
13991 }
13992
13993 let mut prev_offset = 0;
13994 let mut in_code_block = false;
13995 let has_row_limit = max_message_rows.is_some();
13996 let mut newline_indices = diagnostic
13997 .message
13998 .match_indices('\n')
13999 .filter(|_| has_row_limit)
14000 .map(|(ix, _)| ix)
14001 .fuse()
14002 .peekable();
14003
14004 for (quote_ix, _) in diagnostic
14005 .message
14006 .match_indices('`')
14007 .chain([(diagnostic.message.len(), "")])
14008 {
14009 let mut first_newline_ix = None;
14010 let mut last_newline_ix = None;
14011 while let Some(newline_ix) = newline_indices.peek() {
14012 if *newline_ix < quote_ix {
14013 if first_newline_ix.is_none() {
14014 first_newline_ix = Some(*newline_ix);
14015 }
14016 last_newline_ix = Some(*newline_ix);
14017
14018 if let Some(rows_left) = &mut max_message_rows {
14019 if *rows_left == 0 {
14020 break;
14021 } else {
14022 *rows_left -= 1;
14023 }
14024 }
14025 let _ = newline_indices.next();
14026 } else {
14027 break;
14028 }
14029 }
14030 let prev_len = text_without_backticks.len();
14031 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14032 text_without_backticks.push_str(new_text);
14033 if in_code_block {
14034 code_ranges.push(prev_len..text_without_backticks.len());
14035 }
14036 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14037 in_code_block = !in_code_block;
14038 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14039 text_without_backticks.push_str("...");
14040 break;
14041 }
14042 }
14043
14044 (text_without_backticks.into(), code_ranges)
14045}
14046
14047fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14048 match severity {
14049 DiagnosticSeverity::ERROR => colors.error,
14050 DiagnosticSeverity::WARNING => colors.warning,
14051 DiagnosticSeverity::INFORMATION => colors.info,
14052 DiagnosticSeverity::HINT => colors.info,
14053 _ => colors.ignored,
14054 }
14055}
14056
14057pub fn styled_runs_for_code_label<'a>(
14058 label: &'a CodeLabel,
14059 syntax_theme: &'a theme::SyntaxTheme,
14060) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14061 let fade_out = HighlightStyle {
14062 fade_out: Some(0.35),
14063 ..Default::default()
14064 };
14065
14066 let mut prev_end = label.filter_range.end;
14067 label
14068 .runs
14069 .iter()
14070 .enumerate()
14071 .flat_map(move |(ix, (range, highlight_id))| {
14072 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14073 style
14074 } else {
14075 return Default::default();
14076 };
14077 let mut muted_style = style;
14078 muted_style.highlight(fade_out);
14079
14080 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14081 if range.start >= label.filter_range.end {
14082 if range.start > prev_end {
14083 runs.push((prev_end..range.start, fade_out));
14084 }
14085 runs.push((range.clone(), muted_style));
14086 } else if range.end <= label.filter_range.end {
14087 runs.push((range.clone(), style));
14088 } else {
14089 runs.push((range.start..label.filter_range.end, style));
14090 runs.push((label.filter_range.end..range.end, muted_style));
14091 }
14092 prev_end = cmp::max(prev_end, range.end);
14093
14094 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14095 runs.push((prev_end..label.text.len(), fade_out));
14096 }
14097
14098 runs
14099 })
14100}
14101
14102pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14103 let mut prev_index = 0;
14104 let mut prev_codepoint: Option<char> = None;
14105 text.char_indices()
14106 .chain([(text.len(), '\0')])
14107 .filter_map(move |(index, codepoint)| {
14108 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14109 let is_boundary = index == text.len()
14110 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14111 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14112 if is_boundary {
14113 let chunk = &text[prev_index..index];
14114 prev_index = index;
14115 Some(chunk)
14116 } else {
14117 None
14118 }
14119 })
14120}
14121
14122pub trait RangeToAnchorExt: Sized {
14123 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14124
14125 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14126 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14127 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14128 }
14129}
14130
14131impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14132 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14133 let start_offset = self.start.to_offset(snapshot);
14134 let end_offset = self.end.to_offset(snapshot);
14135 if start_offset == end_offset {
14136 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14137 } else {
14138 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14139 }
14140 }
14141}
14142
14143pub trait RowExt {
14144 fn as_f32(&self) -> f32;
14145
14146 fn next_row(&self) -> Self;
14147
14148 fn previous_row(&self) -> Self;
14149
14150 fn minus(&self, other: Self) -> u32;
14151}
14152
14153impl RowExt for DisplayRow {
14154 fn as_f32(&self) -> f32 {
14155 self.0 as f32
14156 }
14157
14158 fn next_row(&self) -> Self {
14159 Self(self.0 + 1)
14160 }
14161
14162 fn previous_row(&self) -> Self {
14163 Self(self.0.saturating_sub(1))
14164 }
14165
14166 fn minus(&self, other: Self) -> u32 {
14167 self.0 - other.0
14168 }
14169}
14170
14171impl RowExt for MultiBufferRow {
14172 fn as_f32(&self) -> f32 {
14173 self.0 as f32
14174 }
14175
14176 fn next_row(&self) -> Self {
14177 Self(self.0 + 1)
14178 }
14179
14180 fn previous_row(&self) -> Self {
14181 Self(self.0.saturating_sub(1))
14182 }
14183
14184 fn minus(&self, other: Self) -> u32 {
14185 self.0 - other.0
14186 }
14187}
14188
14189trait RowRangeExt {
14190 type Row;
14191
14192 fn len(&self) -> usize;
14193
14194 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14195}
14196
14197impl RowRangeExt for Range<MultiBufferRow> {
14198 type Row = MultiBufferRow;
14199
14200 fn len(&self) -> usize {
14201 (self.end.0 - self.start.0) as usize
14202 }
14203
14204 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14205 (self.start.0..self.end.0).map(MultiBufferRow)
14206 }
14207}
14208
14209impl RowRangeExt for Range<DisplayRow> {
14210 type Row = DisplayRow;
14211
14212 fn len(&self) -> usize {
14213 (self.end.0 - self.start.0) as usize
14214 }
14215
14216 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14217 (self.start.0..self.end.0).map(DisplayRow)
14218 }
14219}
14220
14221fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14222 if hunk.diff_base_byte_range.is_empty() {
14223 DiffHunkStatus::Added
14224 } else if hunk.row_range.is_empty() {
14225 DiffHunkStatus::Removed
14226 } else {
14227 DiffHunkStatus::Modified
14228 }
14229}
14230
14231/// If select range has more than one line, we
14232/// just point the cursor to range.start.
14233fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14234 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14235 range
14236 } else {
14237 range.start..range.start
14238 }
14239}