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,
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_clicked_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<Editor>,
4426 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4427 use language::ToOffset as _;
4428
4429 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4430 menu
4431 } else {
4432 return None;
4433 };
4434
4435 let mat = completions_menu
4436 .matches
4437 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4438 let buffer_handle = completions_menu.buffer;
4439 let completions = completions_menu.completions.read();
4440 let completion = completions.get(mat.candidate_id)?;
4441 cx.stop_propagation();
4442
4443 let snippet;
4444 let text;
4445
4446 if completion.is_snippet() {
4447 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4448 text = snippet.as_ref().unwrap().text.clone();
4449 } else {
4450 snippet = None;
4451 text = completion.new_text.clone();
4452 };
4453 let selections = self.selections.all::<usize>(cx);
4454 let buffer = buffer_handle.read(cx);
4455 let old_range = completion.old_range.to_offset(buffer);
4456 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4457
4458 let newest_selection = self.selections.newest_anchor();
4459 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4460 return None;
4461 }
4462
4463 let lookbehind = newest_selection
4464 .start
4465 .text_anchor
4466 .to_offset(buffer)
4467 .saturating_sub(old_range.start);
4468 let lookahead = old_range
4469 .end
4470 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4471 let mut common_prefix_len = old_text
4472 .bytes()
4473 .zip(text.bytes())
4474 .take_while(|(a, b)| a == b)
4475 .count();
4476
4477 let snapshot = self.buffer.read(cx).snapshot(cx);
4478 let mut range_to_replace: Option<Range<isize>> = None;
4479 let mut ranges = Vec::new();
4480 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4481 for selection in &selections {
4482 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4483 let start = selection.start.saturating_sub(lookbehind);
4484 let end = selection.end + lookahead;
4485 if selection.id == newest_selection.id {
4486 range_to_replace = Some(
4487 ((start + common_prefix_len) as isize - selection.start as isize)
4488 ..(end as isize - selection.start as isize),
4489 );
4490 }
4491 ranges.push(start + common_prefix_len..end);
4492 } else {
4493 common_prefix_len = 0;
4494 ranges.clear();
4495 ranges.extend(selections.iter().map(|s| {
4496 if s.id == newest_selection.id {
4497 range_to_replace = Some(
4498 old_range.start.to_offset_utf16(&snapshot).0 as isize
4499 - selection.start as isize
4500 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4501 - selection.start as isize,
4502 );
4503 old_range.clone()
4504 } else {
4505 s.start..s.end
4506 }
4507 }));
4508 break;
4509 }
4510 if !self.linked_edit_ranges.is_empty() {
4511 let start_anchor = snapshot.anchor_before(selection.head());
4512 let end_anchor = snapshot.anchor_after(selection.tail());
4513 if let Some(ranges) = self
4514 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4515 {
4516 for (buffer, edits) in ranges {
4517 linked_edits.entry(buffer.clone()).or_default().extend(
4518 edits
4519 .into_iter()
4520 .map(|range| (range, text[common_prefix_len..].to_owned())),
4521 );
4522 }
4523 }
4524 }
4525 }
4526 let text = &text[common_prefix_len..];
4527
4528 cx.emit(EditorEvent::InputHandled {
4529 utf16_range_to_replace: range_to_replace,
4530 text: text.into(),
4531 });
4532
4533 self.transact(cx, |this, cx| {
4534 if let Some(mut snippet) = snippet {
4535 snippet.text = text.to_string();
4536 for tabstop in snippet.tabstops.iter_mut().flatten() {
4537 tabstop.start -= common_prefix_len as isize;
4538 tabstop.end -= common_prefix_len as isize;
4539 }
4540
4541 this.insert_snippet(&ranges, snippet, cx).log_err();
4542 } else {
4543 this.buffer.update(cx, |buffer, cx| {
4544 buffer.edit(
4545 ranges.iter().map(|range| (range.clone(), text)),
4546 this.autoindent_mode.clone(),
4547 cx,
4548 );
4549 });
4550 }
4551 for (buffer, edits) in linked_edits {
4552 buffer.update(cx, |buffer, cx| {
4553 let snapshot = buffer.snapshot();
4554 let edits = edits
4555 .into_iter()
4556 .map(|(range, text)| {
4557 use text::ToPoint as TP;
4558 let end_point = TP::to_point(&range.end, &snapshot);
4559 let start_point = TP::to_point(&range.start, &snapshot);
4560 (start_point..end_point, text)
4561 })
4562 .sorted_by_key(|(range, _)| range.start)
4563 .collect::<Vec<_>>();
4564 buffer.edit(edits, None, cx);
4565 })
4566 }
4567
4568 this.refresh_inline_completion(true, false, cx);
4569 });
4570
4571 let show_new_completions_on_confirm = completion
4572 .confirm
4573 .as_ref()
4574 .map_or(false, |confirm| confirm(intent, cx));
4575 if show_new_completions_on_confirm {
4576 self.show_completions(&ShowCompletions { trigger: None }, cx);
4577 }
4578
4579 let provider = self.completion_provider.as_ref()?;
4580 let apply_edits = provider.apply_additional_edits_for_completion(
4581 buffer_handle,
4582 completion.clone(),
4583 true,
4584 cx,
4585 );
4586
4587 let editor_settings = EditorSettings::get_global(cx);
4588 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4589 // After the code completion is finished, users often want to know what signatures are needed.
4590 // so we should automatically call signature_help
4591 self.show_signature_help(&ShowSignatureHelp, cx);
4592 }
4593
4594 Some(cx.foreground_executor().spawn(async move {
4595 apply_edits.await?;
4596 Ok(())
4597 }))
4598 }
4599
4600 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4601 let mut context_menu = self.context_menu.write();
4602 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4603 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4604 // Toggle if we're selecting the same one
4605 *context_menu = None;
4606 cx.notify();
4607 return;
4608 } else {
4609 // Otherwise, clear it and start a new one
4610 *context_menu = None;
4611 cx.notify();
4612 }
4613 }
4614 drop(context_menu);
4615 let snapshot = self.snapshot(cx);
4616 let deployed_from_indicator = action.deployed_from_indicator;
4617 let mut task = self.code_actions_task.take();
4618 let action = action.clone();
4619 cx.spawn(|editor, mut cx| async move {
4620 while let Some(prev_task) = task {
4621 prev_task.await.log_err();
4622 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4623 }
4624
4625 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4626 if editor.focus_handle.is_focused(cx) {
4627 let multibuffer_point = action
4628 .deployed_from_indicator
4629 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4630 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4631 let (buffer, buffer_row) = snapshot
4632 .buffer_snapshot
4633 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4634 .and_then(|(buffer_snapshot, range)| {
4635 editor
4636 .buffer
4637 .read(cx)
4638 .buffer(buffer_snapshot.remote_id())
4639 .map(|buffer| (buffer, range.start.row))
4640 })?;
4641 let (_, code_actions) = editor
4642 .available_code_actions
4643 .clone()
4644 .and_then(|(location, code_actions)| {
4645 let snapshot = location.buffer.read(cx).snapshot();
4646 let point_range = location.range.to_point(&snapshot);
4647 let point_range = point_range.start.row..=point_range.end.row;
4648 if point_range.contains(&buffer_row) {
4649 Some((location, code_actions))
4650 } else {
4651 None
4652 }
4653 })
4654 .unzip();
4655 let buffer_id = buffer.read(cx).remote_id();
4656 let tasks = editor
4657 .tasks
4658 .get(&(buffer_id, buffer_row))
4659 .map(|t| Arc::new(t.to_owned()));
4660 if tasks.is_none() && code_actions.is_none() {
4661 return None;
4662 }
4663
4664 editor.completion_tasks.clear();
4665 editor.discard_inline_completion(false, cx);
4666 let task_context =
4667 tasks
4668 .as_ref()
4669 .zip(editor.project.clone())
4670 .map(|(tasks, project)| {
4671 let position = Point::new(buffer_row, tasks.column);
4672 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4673 let location = Location {
4674 buffer: buffer.clone(),
4675 range: range_start..range_start,
4676 };
4677 // Fill in the environmental variables from the tree-sitter captures
4678 let mut captured_task_variables = TaskVariables::default();
4679 for (capture_name, value) in tasks.extra_variables.clone() {
4680 captured_task_variables.insert(
4681 task::VariableName::Custom(capture_name.into()),
4682 value.clone(),
4683 );
4684 }
4685 project.update(cx, |project, cx| {
4686 project.task_context_for_location(
4687 captured_task_variables,
4688 location,
4689 cx,
4690 )
4691 })
4692 });
4693
4694 Some(cx.spawn(|editor, mut cx| async move {
4695 let task_context = match task_context {
4696 Some(task_context) => task_context.await,
4697 None => None,
4698 };
4699 let resolved_tasks =
4700 tasks.zip(task_context).map(|(tasks, task_context)| {
4701 Arc::new(ResolvedTasks {
4702 templates: tasks
4703 .templates
4704 .iter()
4705 .filter_map(|(kind, template)| {
4706 template
4707 .resolve_task(&kind.to_id_base(), &task_context)
4708 .map(|task| (kind.clone(), task))
4709 })
4710 .collect(),
4711 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4712 multibuffer_point.row,
4713 tasks.column,
4714 )),
4715 })
4716 });
4717 let spawn_straight_away = resolved_tasks
4718 .as_ref()
4719 .map_or(false, |tasks| tasks.templates.len() == 1)
4720 && code_actions
4721 .as_ref()
4722 .map_or(true, |actions| actions.is_empty());
4723 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4724 *editor.context_menu.write() =
4725 Some(ContextMenu::CodeActions(CodeActionsMenu {
4726 buffer,
4727 actions: CodeActionContents {
4728 tasks: resolved_tasks,
4729 actions: code_actions,
4730 },
4731 selected_item: Default::default(),
4732 scroll_handle: UniformListScrollHandle::default(),
4733 deployed_from_indicator,
4734 }));
4735 if spawn_straight_away {
4736 if let Some(task) = editor.confirm_code_action(
4737 &ConfirmCodeAction { item_ix: Some(0) },
4738 cx,
4739 ) {
4740 cx.notify();
4741 return task;
4742 }
4743 }
4744 cx.notify();
4745 Task::ready(Ok(()))
4746 }) {
4747 task.await
4748 } else {
4749 Ok(())
4750 }
4751 }))
4752 } else {
4753 Some(Task::ready(Ok(())))
4754 }
4755 })?;
4756 if let Some(task) = spawned_test_task {
4757 task.await?;
4758 }
4759
4760 Ok::<_, anyhow::Error>(())
4761 })
4762 .detach_and_log_err(cx);
4763 }
4764
4765 pub fn confirm_code_action(
4766 &mut self,
4767 action: &ConfirmCodeAction,
4768 cx: &mut ViewContext<Self>,
4769 ) -> Option<Task<Result<()>>> {
4770 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4771 menu
4772 } else {
4773 return None;
4774 };
4775 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4776 let action = actions_menu.actions.get(action_ix)?;
4777 let title = action.label();
4778 let buffer = actions_menu.buffer;
4779 let workspace = self.workspace()?;
4780
4781 match action {
4782 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4783 workspace.update(cx, |workspace, cx| {
4784 workspace::tasks::schedule_resolved_task(
4785 workspace,
4786 task_source_kind,
4787 resolved_task,
4788 false,
4789 cx,
4790 );
4791
4792 Some(Task::ready(Ok(())))
4793 })
4794 }
4795 CodeActionsItem::CodeAction {
4796 excerpt_id,
4797 action,
4798 provider,
4799 } => {
4800 let apply_code_action =
4801 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4802 let workspace = workspace.downgrade();
4803 Some(cx.spawn(|editor, cx| async move {
4804 let project_transaction = apply_code_action.await?;
4805 Self::open_project_transaction(
4806 &editor,
4807 workspace,
4808 project_transaction,
4809 title,
4810 cx,
4811 )
4812 .await
4813 }))
4814 }
4815 }
4816 }
4817
4818 pub async fn open_project_transaction(
4819 this: &WeakView<Editor>,
4820 workspace: WeakView<Workspace>,
4821 transaction: ProjectTransaction,
4822 title: String,
4823 mut cx: AsyncWindowContext,
4824 ) -> Result<()> {
4825 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4826 cx.update(|cx| {
4827 entries.sort_unstable_by_key(|(buffer, _)| {
4828 buffer.read(cx).file().map(|f| f.path().clone())
4829 });
4830 })?;
4831
4832 // If the project transaction's edits are all contained within this editor, then
4833 // avoid opening a new editor to display them.
4834
4835 if let Some((buffer, transaction)) = entries.first() {
4836 if entries.len() == 1 {
4837 let excerpt = this.update(&mut cx, |editor, cx| {
4838 editor
4839 .buffer()
4840 .read(cx)
4841 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4842 })?;
4843 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4844 if excerpted_buffer == *buffer {
4845 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4846 let excerpt_range = excerpt_range.to_offset(buffer);
4847 buffer
4848 .edited_ranges_for_transaction::<usize>(transaction)
4849 .all(|range| {
4850 excerpt_range.start <= range.start
4851 && excerpt_range.end >= range.end
4852 })
4853 })?;
4854
4855 if all_edits_within_excerpt {
4856 return Ok(());
4857 }
4858 }
4859 }
4860 }
4861 } else {
4862 return Ok(());
4863 }
4864
4865 let mut ranges_to_highlight = Vec::new();
4866 let excerpt_buffer = cx.new_model(|cx| {
4867 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4868 for (buffer_handle, transaction) in &entries {
4869 let buffer = buffer_handle.read(cx);
4870 ranges_to_highlight.extend(
4871 multibuffer.push_excerpts_with_context_lines(
4872 buffer_handle.clone(),
4873 buffer
4874 .edited_ranges_for_transaction::<usize>(transaction)
4875 .collect(),
4876 DEFAULT_MULTIBUFFER_CONTEXT,
4877 cx,
4878 ),
4879 );
4880 }
4881 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4882 multibuffer
4883 })?;
4884
4885 workspace.update(&mut cx, |workspace, cx| {
4886 let project = workspace.project().clone();
4887 let editor =
4888 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4889 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4890 editor.update(cx, |editor, cx| {
4891 editor.highlight_background::<Self>(
4892 &ranges_to_highlight,
4893 |theme| theme.editor_highlighted_line_background,
4894 cx,
4895 );
4896 });
4897 })?;
4898
4899 Ok(())
4900 }
4901
4902 pub fn push_code_action_provider(
4903 &mut self,
4904 provider: Arc<dyn CodeActionProvider>,
4905 cx: &mut ViewContext<Self>,
4906 ) {
4907 self.code_action_providers.push(provider);
4908 self.refresh_code_actions(cx);
4909 }
4910
4911 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4912 let buffer = self.buffer.read(cx);
4913 let newest_selection = self.selections.newest_anchor().clone();
4914 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4915 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4916 if start_buffer != end_buffer {
4917 return None;
4918 }
4919
4920 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4921 cx.background_executor()
4922 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4923 .await;
4924
4925 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4926 let providers = this.code_action_providers.clone();
4927 let tasks = this
4928 .code_action_providers
4929 .iter()
4930 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4931 .collect::<Vec<_>>();
4932 (providers, tasks)
4933 })?;
4934
4935 let mut actions = Vec::new();
4936 for (provider, provider_actions) in
4937 providers.into_iter().zip(future::join_all(tasks).await)
4938 {
4939 if let Some(provider_actions) = provider_actions.log_err() {
4940 actions.extend(provider_actions.into_iter().map(|action| {
4941 AvailableCodeAction {
4942 excerpt_id: newest_selection.start.excerpt_id,
4943 action,
4944 provider: provider.clone(),
4945 }
4946 }));
4947 }
4948 }
4949
4950 this.update(&mut cx, |this, cx| {
4951 this.available_code_actions = if actions.is_empty() {
4952 None
4953 } else {
4954 Some((
4955 Location {
4956 buffer: start_buffer,
4957 range: start..end,
4958 },
4959 actions.into(),
4960 ))
4961 };
4962 cx.notify();
4963 })
4964 }));
4965 None
4966 }
4967
4968 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4969 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4970 self.show_git_blame_inline = false;
4971
4972 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4973 cx.background_executor().timer(delay).await;
4974
4975 this.update(&mut cx, |this, cx| {
4976 this.show_git_blame_inline = true;
4977 cx.notify();
4978 })
4979 .log_err();
4980 }));
4981 }
4982 }
4983
4984 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4985 if self.pending_rename.is_some() {
4986 return None;
4987 }
4988
4989 let project = self.project.clone()?;
4990 let buffer = self.buffer.read(cx);
4991 let newest_selection = self.selections.newest_anchor().clone();
4992 let cursor_position = newest_selection.head();
4993 let (cursor_buffer, cursor_buffer_position) =
4994 buffer.text_anchor_for_position(cursor_position, cx)?;
4995 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4996 if cursor_buffer != tail_buffer {
4997 return None;
4998 }
4999
5000 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5001 cx.background_executor()
5002 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5003 .await;
5004
5005 let highlights = if let Some(highlights) = project
5006 .update(&mut cx, |project, cx| {
5007 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5008 })
5009 .log_err()
5010 {
5011 highlights.await.log_err()
5012 } else {
5013 None
5014 };
5015
5016 if let Some(highlights) = highlights {
5017 this.update(&mut cx, |this, cx| {
5018 if this.pending_rename.is_some() {
5019 return;
5020 }
5021
5022 let buffer_id = cursor_position.buffer_id;
5023 let buffer = this.buffer.read(cx);
5024 if !buffer
5025 .text_anchor_for_position(cursor_position, cx)
5026 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5027 {
5028 return;
5029 }
5030
5031 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5032 let mut write_ranges = Vec::new();
5033 let mut read_ranges = Vec::new();
5034 for highlight in highlights {
5035 for (excerpt_id, excerpt_range) in
5036 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5037 {
5038 let start = highlight
5039 .range
5040 .start
5041 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5042 let end = highlight
5043 .range
5044 .end
5045 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5046 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5047 continue;
5048 }
5049
5050 let range = Anchor {
5051 buffer_id,
5052 excerpt_id,
5053 text_anchor: start,
5054 }..Anchor {
5055 buffer_id,
5056 excerpt_id,
5057 text_anchor: end,
5058 };
5059 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5060 write_ranges.push(range);
5061 } else {
5062 read_ranges.push(range);
5063 }
5064 }
5065 }
5066
5067 this.highlight_background::<DocumentHighlightRead>(
5068 &read_ranges,
5069 |theme| theme.editor_document_highlight_read_background,
5070 cx,
5071 );
5072 this.highlight_background::<DocumentHighlightWrite>(
5073 &write_ranges,
5074 |theme| theme.editor_document_highlight_write_background,
5075 cx,
5076 );
5077 cx.notify();
5078 })
5079 .log_err();
5080 }
5081 }));
5082 None
5083 }
5084
5085 pub fn refresh_inline_completion(
5086 &mut self,
5087 debounce: bool,
5088 user_requested: bool,
5089 cx: &mut ViewContext<Self>,
5090 ) -> Option<()> {
5091 let provider = self.inline_completion_provider()?;
5092 let cursor = self.selections.newest_anchor().head();
5093 let (buffer, cursor_buffer_position) =
5094 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5095
5096 if !user_requested
5097 && (!self.enable_inline_completions
5098 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5099 {
5100 self.discard_inline_completion(false, cx);
5101 return None;
5102 }
5103
5104 self.update_visible_inline_completion(cx);
5105 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5106 Some(())
5107 }
5108
5109 fn cycle_inline_completion(
5110 &mut self,
5111 direction: Direction,
5112 cx: &mut ViewContext<Self>,
5113 ) -> Option<()> {
5114 let provider = self.inline_completion_provider()?;
5115 let cursor = self.selections.newest_anchor().head();
5116 let (buffer, cursor_buffer_position) =
5117 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5118 if !self.enable_inline_completions
5119 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5120 {
5121 return None;
5122 }
5123
5124 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5125 self.update_visible_inline_completion(cx);
5126
5127 Some(())
5128 }
5129
5130 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5131 if !self.has_active_inline_completion(cx) {
5132 self.refresh_inline_completion(false, true, cx);
5133 return;
5134 }
5135
5136 self.update_visible_inline_completion(cx);
5137 }
5138
5139 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5140 self.show_cursor_names(cx);
5141 }
5142
5143 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5144 self.show_cursor_names = true;
5145 cx.notify();
5146 cx.spawn(|this, mut cx| async move {
5147 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5148 this.update(&mut cx, |this, cx| {
5149 this.show_cursor_names = false;
5150 cx.notify()
5151 })
5152 .ok()
5153 })
5154 .detach();
5155 }
5156
5157 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5158 if self.has_active_inline_completion(cx) {
5159 self.cycle_inline_completion(Direction::Next, cx);
5160 } else {
5161 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5162 if is_copilot_disabled {
5163 cx.propagate();
5164 }
5165 }
5166 }
5167
5168 pub fn previous_inline_completion(
5169 &mut self,
5170 _: &PreviousInlineCompletion,
5171 cx: &mut ViewContext<Self>,
5172 ) {
5173 if self.has_active_inline_completion(cx) {
5174 self.cycle_inline_completion(Direction::Prev, cx);
5175 } else {
5176 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5177 if is_copilot_disabled {
5178 cx.propagate();
5179 }
5180 }
5181 }
5182
5183 pub fn accept_inline_completion(
5184 &mut self,
5185 _: &AcceptInlineCompletion,
5186 cx: &mut ViewContext<Self>,
5187 ) {
5188 let Some(completion) = self.take_active_inline_completion(cx) else {
5189 return;
5190 };
5191 if let Some(provider) = self.inline_completion_provider() {
5192 provider.accept(cx);
5193 }
5194
5195 cx.emit(EditorEvent::InputHandled {
5196 utf16_range_to_replace: None,
5197 text: completion.text.to_string().into(),
5198 });
5199
5200 if let Some(range) = completion.delete_range {
5201 self.change_selections(None, cx, |s| s.select_ranges([range]))
5202 }
5203 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5204 self.refresh_inline_completion(true, true, cx);
5205 cx.notify();
5206 }
5207
5208 pub fn accept_partial_inline_completion(
5209 &mut self,
5210 _: &AcceptPartialInlineCompletion,
5211 cx: &mut ViewContext<Self>,
5212 ) {
5213 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5214 if let Some(completion) = self.take_active_inline_completion(cx) {
5215 let mut partial_completion = completion
5216 .text
5217 .chars()
5218 .by_ref()
5219 .take_while(|c| c.is_alphabetic())
5220 .collect::<String>();
5221 if partial_completion.is_empty() {
5222 partial_completion = completion
5223 .text
5224 .chars()
5225 .by_ref()
5226 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5227 .collect::<String>();
5228 }
5229
5230 cx.emit(EditorEvent::InputHandled {
5231 utf16_range_to_replace: None,
5232 text: partial_completion.clone().into(),
5233 });
5234
5235 if let Some(range) = completion.delete_range {
5236 self.change_selections(None, cx, |s| s.select_ranges([range]))
5237 }
5238 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5239
5240 self.refresh_inline_completion(true, true, cx);
5241 cx.notify();
5242 }
5243 }
5244 }
5245
5246 fn discard_inline_completion(
5247 &mut self,
5248 should_report_inline_completion_event: bool,
5249 cx: &mut ViewContext<Self>,
5250 ) -> bool {
5251 if let Some(provider) = self.inline_completion_provider() {
5252 provider.discard(should_report_inline_completion_event, cx);
5253 }
5254
5255 self.take_active_inline_completion(cx).is_some()
5256 }
5257
5258 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5259 if let Some(completion) = self.active_inline_completion.as_ref() {
5260 let buffer = self.buffer.read(cx).read(cx);
5261 completion.position.is_valid(&buffer)
5262 } else {
5263 false
5264 }
5265 }
5266
5267 fn take_active_inline_completion(
5268 &mut self,
5269 cx: &mut ViewContext<Self>,
5270 ) -> Option<CompletionState> {
5271 let completion = self.active_inline_completion.take()?;
5272 let render_inlay_ids = completion.render_inlay_ids.clone();
5273 self.display_map.update(cx, |map, cx| {
5274 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5275 });
5276 let buffer = self.buffer.read(cx).read(cx);
5277
5278 if completion.position.is_valid(&buffer) {
5279 Some(completion)
5280 } else {
5281 None
5282 }
5283 }
5284
5285 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5286 let selection = self.selections.newest_anchor();
5287 let cursor = selection.head();
5288
5289 let excerpt_id = cursor.excerpt_id;
5290
5291 if self.context_menu.read().is_none()
5292 && self.completion_tasks.is_empty()
5293 && selection.start == selection.end
5294 {
5295 if let Some(provider) = self.inline_completion_provider() {
5296 if let Some((buffer, cursor_buffer_position)) =
5297 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5298 {
5299 if let Some(proposal) =
5300 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5301 {
5302 let mut to_remove = Vec::new();
5303 if let Some(completion) = self.active_inline_completion.take() {
5304 to_remove.extend(completion.render_inlay_ids.iter());
5305 }
5306
5307 let to_add = proposal
5308 .inlays
5309 .iter()
5310 .filter_map(|inlay| {
5311 let snapshot = self.buffer.read(cx).snapshot(cx);
5312 let id = post_inc(&mut self.next_inlay_id);
5313 match inlay {
5314 InlayProposal::Hint(position, hint) => {
5315 let position =
5316 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5317 Some(Inlay::hint(id, position, hint))
5318 }
5319 InlayProposal::Suggestion(position, text) => {
5320 let position =
5321 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5322 Some(Inlay::suggestion(id, position, text.clone()))
5323 }
5324 }
5325 })
5326 .collect_vec();
5327
5328 self.active_inline_completion = Some(CompletionState {
5329 position: cursor,
5330 text: proposal.text,
5331 delete_range: proposal.delete_range.and_then(|range| {
5332 let snapshot = self.buffer.read(cx).snapshot(cx);
5333 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5334 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5335 Some(start?..end?)
5336 }),
5337 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5338 });
5339
5340 self.display_map
5341 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5342
5343 cx.notify();
5344 return;
5345 }
5346 }
5347 }
5348 }
5349
5350 self.discard_inline_completion(false, cx);
5351 }
5352
5353 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5354 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5355 }
5356
5357 fn render_code_actions_indicator(
5358 &self,
5359 _style: &EditorStyle,
5360 row: DisplayRow,
5361 is_active: bool,
5362 cx: &mut ViewContext<Self>,
5363 ) -> Option<IconButton> {
5364 if self.available_code_actions.is_some() {
5365 Some(
5366 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5367 .shape(ui::IconButtonShape::Square)
5368 .icon_size(IconSize::XSmall)
5369 .icon_color(Color::Muted)
5370 .selected(is_active)
5371 .on_click(cx.listener(move |editor, _e, cx| {
5372 editor.focus(cx);
5373 editor.toggle_code_actions(
5374 &ToggleCodeActions {
5375 deployed_from_indicator: Some(row),
5376 },
5377 cx,
5378 );
5379 })),
5380 )
5381 } else {
5382 None
5383 }
5384 }
5385
5386 fn clear_tasks(&mut self) {
5387 self.tasks.clear()
5388 }
5389
5390 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5391 if self.tasks.insert(key, value).is_some() {
5392 // This case should hopefully be rare, but just in case...
5393 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5394 }
5395 }
5396
5397 fn render_run_indicator(
5398 &self,
5399 _style: &EditorStyle,
5400 is_active: bool,
5401 row: DisplayRow,
5402 cx: &mut ViewContext<Self>,
5403 ) -> IconButton {
5404 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5405 .shape(ui::IconButtonShape::Square)
5406 .icon_size(IconSize::XSmall)
5407 .icon_color(Color::Muted)
5408 .selected(is_active)
5409 .on_click(cx.listener(move |editor, _e, cx| {
5410 editor.focus(cx);
5411 editor.toggle_code_actions(
5412 &ToggleCodeActions {
5413 deployed_from_indicator: Some(row),
5414 },
5415 cx,
5416 );
5417 }))
5418 }
5419
5420 pub fn context_menu_visible(&self) -> bool {
5421 self.context_menu
5422 .read()
5423 .as_ref()
5424 .map_or(false, |menu| menu.visible())
5425 }
5426
5427 fn render_context_menu(
5428 &self,
5429 cursor_position: DisplayPoint,
5430 style: &EditorStyle,
5431 max_height: Pixels,
5432 cx: &mut ViewContext<Editor>,
5433 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5434 self.context_menu.read().as_ref().map(|menu| {
5435 menu.render(
5436 cursor_position,
5437 style,
5438 max_height,
5439 self.workspace.as_ref().map(|(w, _)| w.clone()),
5440 cx,
5441 )
5442 })
5443 }
5444
5445 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5446 cx.notify();
5447 self.completion_tasks.clear();
5448 let context_menu = self.context_menu.write().take();
5449 if context_menu.is_some() {
5450 self.update_visible_inline_completion(cx);
5451 }
5452 context_menu
5453 }
5454
5455 pub fn insert_snippet(
5456 &mut self,
5457 insertion_ranges: &[Range<usize>],
5458 snippet: Snippet,
5459 cx: &mut ViewContext<Self>,
5460 ) -> Result<()> {
5461 struct Tabstop<T> {
5462 is_end_tabstop: bool,
5463 ranges: Vec<Range<T>>,
5464 }
5465
5466 let tabstops = self.buffer.update(cx, |buffer, cx| {
5467 let snippet_text: Arc<str> = snippet.text.clone().into();
5468 buffer.edit(
5469 insertion_ranges
5470 .iter()
5471 .cloned()
5472 .map(|range| (range, snippet_text.clone())),
5473 Some(AutoindentMode::EachLine),
5474 cx,
5475 );
5476
5477 let snapshot = &*buffer.read(cx);
5478 let snippet = &snippet;
5479 snippet
5480 .tabstops
5481 .iter()
5482 .map(|tabstop| {
5483 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
5484 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5485 });
5486 let mut tabstop_ranges = tabstop
5487 .iter()
5488 .flat_map(|tabstop_range| {
5489 let mut delta = 0_isize;
5490 insertion_ranges.iter().map(move |insertion_range| {
5491 let insertion_start = insertion_range.start as isize + delta;
5492 delta +=
5493 snippet.text.len() as isize - insertion_range.len() as isize;
5494
5495 let start = ((insertion_start + tabstop_range.start) as usize)
5496 .min(snapshot.len());
5497 let end = ((insertion_start + tabstop_range.end) as usize)
5498 .min(snapshot.len());
5499 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5500 })
5501 })
5502 .collect::<Vec<_>>();
5503 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5504
5505 Tabstop {
5506 is_end_tabstop,
5507 ranges: tabstop_ranges,
5508 }
5509 })
5510 .collect::<Vec<_>>()
5511 });
5512 if let Some(tabstop) = tabstops.first() {
5513 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5514 s.select_ranges(tabstop.ranges.iter().cloned());
5515 });
5516
5517 // If we're already at the last tabstop and it's at the end of the snippet,
5518 // we're done, we don't need to keep the state around.
5519 if !tabstop.is_end_tabstop {
5520 let ranges = tabstops
5521 .into_iter()
5522 .map(|tabstop| tabstop.ranges)
5523 .collect::<Vec<_>>();
5524 self.snippet_stack.push(SnippetState {
5525 active_index: 0,
5526 ranges,
5527 });
5528 }
5529
5530 // Check whether the just-entered snippet ends with an auto-closable bracket.
5531 if self.autoclose_regions.is_empty() {
5532 let snapshot = self.buffer.read(cx).snapshot(cx);
5533 for selection in &mut self.selections.all::<Point>(cx) {
5534 let selection_head = selection.head();
5535 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5536 continue;
5537 };
5538
5539 let mut bracket_pair = None;
5540 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5541 let prev_chars = snapshot
5542 .reversed_chars_at(selection_head)
5543 .collect::<String>();
5544 for (pair, enabled) in scope.brackets() {
5545 if enabled
5546 && pair.close
5547 && prev_chars.starts_with(pair.start.as_str())
5548 && next_chars.starts_with(pair.end.as_str())
5549 {
5550 bracket_pair = Some(pair.clone());
5551 break;
5552 }
5553 }
5554 if let Some(pair) = bracket_pair {
5555 let start = snapshot.anchor_after(selection_head);
5556 let end = snapshot.anchor_after(selection_head);
5557 self.autoclose_regions.push(AutocloseRegion {
5558 selection_id: selection.id,
5559 range: start..end,
5560 pair,
5561 });
5562 }
5563 }
5564 }
5565 }
5566 Ok(())
5567 }
5568
5569 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5570 self.move_to_snippet_tabstop(Bias::Right, cx)
5571 }
5572
5573 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5574 self.move_to_snippet_tabstop(Bias::Left, cx)
5575 }
5576
5577 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5578 if let Some(mut snippet) = self.snippet_stack.pop() {
5579 match bias {
5580 Bias::Left => {
5581 if snippet.active_index > 0 {
5582 snippet.active_index -= 1;
5583 } else {
5584 self.snippet_stack.push(snippet);
5585 return false;
5586 }
5587 }
5588 Bias::Right => {
5589 if snippet.active_index + 1 < snippet.ranges.len() {
5590 snippet.active_index += 1;
5591 } else {
5592 self.snippet_stack.push(snippet);
5593 return false;
5594 }
5595 }
5596 }
5597 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5598 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5599 s.select_anchor_ranges(current_ranges.iter().cloned())
5600 });
5601 // If snippet state is not at the last tabstop, push it back on the stack
5602 if snippet.active_index + 1 < snippet.ranges.len() {
5603 self.snippet_stack.push(snippet);
5604 }
5605 return true;
5606 }
5607 }
5608
5609 false
5610 }
5611
5612 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5613 self.transact(cx, |this, cx| {
5614 this.select_all(&SelectAll, cx);
5615 this.insert("", cx);
5616 });
5617 }
5618
5619 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5620 self.transact(cx, |this, cx| {
5621 this.select_autoclose_pair(cx);
5622 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5623 if !this.linked_edit_ranges.is_empty() {
5624 let selections = this.selections.all::<MultiBufferPoint>(cx);
5625 let snapshot = this.buffer.read(cx).snapshot(cx);
5626
5627 for selection in selections.iter() {
5628 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5629 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5630 if selection_start.buffer_id != selection_end.buffer_id {
5631 continue;
5632 }
5633 if let Some(ranges) =
5634 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5635 {
5636 for (buffer, entries) in ranges {
5637 linked_ranges.entry(buffer).or_default().extend(entries);
5638 }
5639 }
5640 }
5641 }
5642
5643 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5644 if !this.selections.line_mode {
5645 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5646 for selection in &mut selections {
5647 if selection.is_empty() {
5648 let old_head = selection.head();
5649 let mut new_head =
5650 movement::left(&display_map, old_head.to_display_point(&display_map))
5651 .to_point(&display_map);
5652 if let Some((buffer, line_buffer_range)) = display_map
5653 .buffer_snapshot
5654 .buffer_line_for_row(MultiBufferRow(old_head.row))
5655 {
5656 let indent_size =
5657 buffer.indent_size_for_line(line_buffer_range.start.row);
5658 let indent_len = match indent_size.kind {
5659 IndentKind::Space => {
5660 buffer.settings_at(line_buffer_range.start, cx).tab_size
5661 }
5662 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5663 };
5664 if old_head.column <= indent_size.len && old_head.column > 0 {
5665 let indent_len = indent_len.get();
5666 new_head = cmp::min(
5667 new_head,
5668 MultiBufferPoint::new(
5669 old_head.row,
5670 ((old_head.column - 1) / indent_len) * indent_len,
5671 ),
5672 );
5673 }
5674 }
5675
5676 selection.set_head(new_head, SelectionGoal::None);
5677 }
5678 }
5679 }
5680
5681 this.signature_help_state.set_backspace_pressed(true);
5682 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5683 this.insert("", cx);
5684 let empty_str: Arc<str> = Arc::from("");
5685 for (buffer, edits) in linked_ranges {
5686 let snapshot = buffer.read(cx).snapshot();
5687 use text::ToPoint as TP;
5688
5689 let edits = edits
5690 .into_iter()
5691 .map(|range| {
5692 let end_point = TP::to_point(&range.end, &snapshot);
5693 let mut start_point = TP::to_point(&range.start, &snapshot);
5694
5695 if end_point == start_point {
5696 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5697 .saturating_sub(1);
5698 start_point = TP::to_point(&offset, &snapshot);
5699 };
5700
5701 (start_point..end_point, empty_str.clone())
5702 })
5703 .sorted_by_key(|(range, _)| range.start)
5704 .collect::<Vec<_>>();
5705 buffer.update(cx, |this, cx| {
5706 this.edit(edits, None, cx);
5707 })
5708 }
5709 this.refresh_inline_completion(true, false, cx);
5710 linked_editing_ranges::refresh_linked_ranges(this, cx);
5711 });
5712 }
5713
5714 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5715 self.transact(cx, |this, cx| {
5716 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5717 let line_mode = s.line_mode;
5718 s.move_with(|map, selection| {
5719 if selection.is_empty() && !line_mode {
5720 let cursor = movement::right(map, selection.head());
5721 selection.end = cursor;
5722 selection.reversed = true;
5723 selection.goal = SelectionGoal::None;
5724 }
5725 })
5726 });
5727 this.insert("", cx);
5728 this.refresh_inline_completion(true, false, cx);
5729 });
5730 }
5731
5732 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5733 if self.move_to_prev_snippet_tabstop(cx) {
5734 return;
5735 }
5736
5737 self.outdent(&Outdent, cx);
5738 }
5739
5740 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5741 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5742 return;
5743 }
5744
5745 let mut selections = self.selections.all_adjusted(cx);
5746 let buffer = self.buffer.read(cx);
5747 let snapshot = buffer.snapshot(cx);
5748 let rows_iter = selections.iter().map(|s| s.head().row);
5749 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5750
5751 let mut edits = Vec::new();
5752 let mut prev_edited_row = 0;
5753 let mut row_delta = 0;
5754 for selection in &mut selections {
5755 if selection.start.row != prev_edited_row {
5756 row_delta = 0;
5757 }
5758 prev_edited_row = selection.end.row;
5759
5760 // If the selection is non-empty, then increase the indentation of the selected lines.
5761 if !selection.is_empty() {
5762 row_delta =
5763 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5764 continue;
5765 }
5766
5767 // If the selection is empty and the cursor is in the leading whitespace before the
5768 // suggested indentation, then auto-indent the line.
5769 let cursor = selection.head();
5770 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5771 if let Some(suggested_indent) =
5772 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5773 {
5774 if cursor.column < suggested_indent.len
5775 && cursor.column <= current_indent.len
5776 && current_indent.len <= suggested_indent.len
5777 {
5778 selection.start = Point::new(cursor.row, suggested_indent.len);
5779 selection.end = selection.start;
5780 if row_delta == 0 {
5781 edits.extend(Buffer::edit_for_indent_size_adjustment(
5782 cursor.row,
5783 current_indent,
5784 suggested_indent,
5785 ));
5786 row_delta = suggested_indent.len - current_indent.len;
5787 }
5788 continue;
5789 }
5790 }
5791
5792 // Otherwise, insert a hard or soft tab.
5793 let settings = buffer.settings_at(cursor, cx);
5794 let tab_size = if settings.hard_tabs {
5795 IndentSize::tab()
5796 } else {
5797 let tab_size = settings.tab_size.get();
5798 let char_column = snapshot
5799 .text_for_range(Point::new(cursor.row, 0)..cursor)
5800 .flat_map(str::chars)
5801 .count()
5802 + row_delta as usize;
5803 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5804 IndentSize::spaces(chars_to_next_tab_stop)
5805 };
5806 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5807 selection.end = selection.start;
5808 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5809 row_delta += tab_size.len;
5810 }
5811
5812 self.transact(cx, |this, cx| {
5813 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5814 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5815 this.refresh_inline_completion(true, false, cx);
5816 });
5817 }
5818
5819 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5820 if self.read_only(cx) {
5821 return;
5822 }
5823 let mut selections = self.selections.all::<Point>(cx);
5824 let mut prev_edited_row = 0;
5825 let mut row_delta = 0;
5826 let mut edits = Vec::new();
5827 let buffer = self.buffer.read(cx);
5828 let snapshot = buffer.snapshot(cx);
5829 for selection in &mut selections {
5830 if selection.start.row != prev_edited_row {
5831 row_delta = 0;
5832 }
5833 prev_edited_row = selection.end.row;
5834
5835 row_delta =
5836 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5837 }
5838
5839 self.transact(cx, |this, cx| {
5840 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5841 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5842 });
5843 }
5844
5845 fn indent_selection(
5846 buffer: &MultiBuffer,
5847 snapshot: &MultiBufferSnapshot,
5848 selection: &mut Selection<Point>,
5849 edits: &mut Vec<(Range<Point>, String)>,
5850 delta_for_start_row: u32,
5851 cx: &AppContext,
5852 ) -> u32 {
5853 let settings = buffer.settings_at(selection.start, cx);
5854 let tab_size = settings.tab_size.get();
5855 let indent_kind = if settings.hard_tabs {
5856 IndentKind::Tab
5857 } else {
5858 IndentKind::Space
5859 };
5860 let mut start_row = selection.start.row;
5861 let mut end_row = selection.end.row + 1;
5862
5863 // If a selection ends at the beginning of a line, don't indent
5864 // that last line.
5865 if selection.end.column == 0 && selection.end.row > selection.start.row {
5866 end_row -= 1;
5867 }
5868
5869 // Avoid re-indenting a row that has already been indented by a
5870 // previous selection, but still update this selection's column
5871 // to reflect that indentation.
5872 if delta_for_start_row > 0 {
5873 start_row += 1;
5874 selection.start.column += delta_for_start_row;
5875 if selection.end.row == selection.start.row {
5876 selection.end.column += delta_for_start_row;
5877 }
5878 }
5879
5880 let mut delta_for_end_row = 0;
5881 let has_multiple_rows = start_row + 1 != end_row;
5882 for row in start_row..end_row {
5883 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5884 let indent_delta = match (current_indent.kind, indent_kind) {
5885 (IndentKind::Space, IndentKind::Space) => {
5886 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5887 IndentSize::spaces(columns_to_next_tab_stop)
5888 }
5889 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5890 (_, IndentKind::Tab) => IndentSize::tab(),
5891 };
5892
5893 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5894 0
5895 } else {
5896 selection.start.column
5897 };
5898 let row_start = Point::new(row, start);
5899 edits.push((
5900 row_start..row_start,
5901 indent_delta.chars().collect::<String>(),
5902 ));
5903
5904 // Update this selection's endpoints to reflect the indentation.
5905 if row == selection.start.row {
5906 selection.start.column += indent_delta.len;
5907 }
5908 if row == selection.end.row {
5909 selection.end.column += indent_delta.len;
5910 delta_for_end_row = indent_delta.len;
5911 }
5912 }
5913
5914 if selection.start.row == selection.end.row {
5915 delta_for_start_row + delta_for_end_row
5916 } else {
5917 delta_for_end_row
5918 }
5919 }
5920
5921 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5922 if self.read_only(cx) {
5923 return;
5924 }
5925 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5926 let selections = self.selections.all::<Point>(cx);
5927 let mut deletion_ranges = Vec::new();
5928 let mut last_outdent = None;
5929 {
5930 let buffer = self.buffer.read(cx);
5931 let snapshot = buffer.snapshot(cx);
5932 for selection in &selections {
5933 let settings = buffer.settings_at(selection.start, cx);
5934 let tab_size = settings.tab_size.get();
5935 let mut rows = selection.spanned_rows(false, &display_map);
5936
5937 // Avoid re-outdenting a row that has already been outdented by a
5938 // previous selection.
5939 if let Some(last_row) = last_outdent {
5940 if last_row == rows.start {
5941 rows.start = rows.start.next_row();
5942 }
5943 }
5944 let has_multiple_rows = rows.len() > 1;
5945 for row in rows.iter_rows() {
5946 let indent_size = snapshot.indent_size_for_line(row);
5947 if indent_size.len > 0 {
5948 let deletion_len = match indent_size.kind {
5949 IndentKind::Space => {
5950 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5951 if columns_to_prev_tab_stop == 0 {
5952 tab_size
5953 } else {
5954 columns_to_prev_tab_stop
5955 }
5956 }
5957 IndentKind::Tab => 1,
5958 };
5959 let start = if has_multiple_rows
5960 || deletion_len > selection.start.column
5961 || indent_size.len < selection.start.column
5962 {
5963 0
5964 } else {
5965 selection.start.column - deletion_len
5966 };
5967 deletion_ranges.push(
5968 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5969 );
5970 last_outdent = Some(row);
5971 }
5972 }
5973 }
5974 }
5975
5976 self.transact(cx, |this, cx| {
5977 this.buffer.update(cx, |buffer, cx| {
5978 let empty_str: Arc<str> = Arc::default();
5979 buffer.edit(
5980 deletion_ranges
5981 .into_iter()
5982 .map(|range| (range, empty_str.clone())),
5983 None,
5984 cx,
5985 );
5986 });
5987 let selections = this.selections.all::<usize>(cx);
5988 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5989 });
5990 }
5991
5992 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5993 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5994 let selections = self.selections.all::<Point>(cx);
5995
5996 let mut new_cursors = Vec::new();
5997 let mut edit_ranges = Vec::new();
5998 let mut selections = selections.iter().peekable();
5999 while let Some(selection) = selections.next() {
6000 let mut rows = selection.spanned_rows(false, &display_map);
6001 let goal_display_column = selection.head().to_display_point(&display_map).column();
6002
6003 // Accumulate contiguous regions of rows that we want to delete.
6004 while let Some(next_selection) = selections.peek() {
6005 let next_rows = next_selection.spanned_rows(false, &display_map);
6006 if next_rows.start <= rows.end {
6007 rows.end = next_rows.end;
6008 selections.next().unwrap();
6009 } else {
6010 break;
6011 }
6012 }
6013
6014 let buffer = &display_map.buffer_snapshot;
6015 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6016 let edit_end;
6017 let cursor_buffer_row;
6018 if buffer.max_point().row >= rows.end.0 {
6019 // If there's a line after the range, delete the \n from the end of the row range
6020 // and position the cursor on the next line.
6021 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6022 cursor_buffer_row = rows.end;
6023 } else {
6024 // If there isn't a line after the range, delete the \n from the line before the
6025 // start of the row range and position the cursor there.
6026 edit_start = edit_start.saturating_sub(1);
6027 edit_end = buffer.len();
6028 cursor_buffer_row = rows.start.previous_row();
6029 }
6030
6031 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6032 *cursor.column_mut() =
6033 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6034
6035 new_cursors.push((
6036 selection.id,
6037 buffer.anchor_after(cursor.to_point(&display_map)),
6038 ));
6039 edit_ranges.push(edit_start..edit_end);
6040 }
6041
6042 self.transact(cx, |this, cx| {
6043 let buffer = this.buffer.update(cx, |buffer, cx| {
6044 let empty_str: Arc<str> = Arc::default();
6045 buffer.edit(
6046 edit_ranges
6047 .into_iter()
6048 .map(|range| (range, empty_str.clone())),
6049 None,
6050 cx,
6051 );
6052 buffer.snapshot(cx)
6053 });
6054 let new_selections = new_cursors
6055 .into_iter()
6056 .map(|(id, cursor)| {
6057 let cursor = cursor.to_point(&buffer);
6058 Selection {
6059 id,
6060 start: cursor,
6061 end: cursor,
6062 reversed: false,
6063 goal: SelectionGoal::None,
6064 }
6065 })
6066 .collect();
6067
6068 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6069 s.select(new_selections);
6070 });
6071 });
6072 }
6073
6074 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6075 if self.read_only(cx) {
6076 return;
6077 }
6078 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6079 for selection in self.selections.all::<Point>(cx) {
6080 let start = MultiBufferRow(selection.start.row);
6081 let end = if selection.start.row == selection.end.row {
6082 MultiBufferRow(selection.start.row + 1)
6083 } else {
6084 MultiBufferRow(selection.end.row)
6085 };
6086
6087 if let Some(last_row_range) = row_ranges.last_mut() {
6088 if start <= last_row_range.end {
6089 last_row_range.end = end;
6090 continue;
6091 }
6092 }
6093 row_ranges.push(start..end);
6094 }
6095
6096 let snapshot = self.buffer.read(cx).snapshot(cx);
6097 let mut cursor_positions = Vec::new();
6098 for row_range in &row_ranges {
6099 let anchor = snapshot.anchor_before(Point::new(
6100 row_range.end.previous_row().0,
6101 snapshot.line_len(row_range.end.previous_row()),
6102 ));
6103 cursor_positions.push(anchor..anchor);
6104 }
6105
6106 self.transact(cx, |this, cx| {
6107 for row_range in row_ranges.into_iter().rev() {
6108 for row in row_range.iter_rows().rev() {
6109 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6110 let next_line_row = row.next_row();
6111 let indent = snapshot.indent_size_for_line(next_line_row);
6112 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6113
6114 let replace = if snapshot.line_len(next_line_row) > indent.len {
6115 " "
6116 } else {
6117 ""
6118 };
6119
6120 this.buffer.update(cx, |buffer, cx| {
6121 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6122 });
6123 }
6124 }
6125
6126 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6127 s.select_anchor_ranges(cursor_positions)
6128 });
6129 });
6130 }
6131
6132 pub fn sort_lines_case_sensitive(
6133 &mut self,
6134 _: &SortLinesCaseSensitive,
6135 cx: &mut ViewContext<Self>,
6136 ) {
6137 self.manipulate_lines(cx, |lines| lines.sort())
6138 }
6139
6140 pub fn sort_lines_case_insensitive(
6141 &mut self,
6142 _: &SortLinesCaseInsensitive,
6143 cx: &mut ViewContext<Self>,
6144 ) {
6145 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6146 }
6147
6148 pub fn unique_lines_case_insensitive(
6149 &mut self,
6150 _: &UniqueLinesCaseInsensitive,
6151 cx: &mut ViewContext<Self>,
6152 ) {
6153 self.manipulate_lines(cx, |lines| {
6154 let mut seen = HashSet::default();
6155 lines.retain(|line| seen.insert(line.to_lowercase()));
6156 })
6157 }
6158
6159 pub fn unique_lines_case_sensitive(
6160 &mut self,
6161 _: &UniqueLinesCaseSensitive,
6162 cx: &mut ViewContext<Self>,
6163 ) {
6164 self.manipulate_lines(cx, |lines| {
6165 let mut seen = HashSet::default();
6166 lines.retain(|line| seen.insert(*line));
6167 })
6168 }
6169
6170 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6171 let mut revert_changes = HashMap::default();
6172 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6173 for hunk in hunks_for_rows(
6174 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6175 &multi_buffer_snapshot,
6176 ) {
6177 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6178 }
6179 if !revert_changes.is_empty() {
6180 self.transact(cx, |editor, cx| {
6181 editor.revert(revert_changes, cx);
6182 });
6183 }
6184 }
6185
6186 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6187 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6188 if !revert_changes.is_empty() {
6189 self.transact(cx, |editor, cx| {
6190 editor.revert(revert_changes, cx);
6191 });
6192 }
6193 }
6194
6195 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6196 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6197 let project_path = buffer.read(cx).project_path(cx)?;
6198 let project = self.project.as_ref()?.read(cx);
6199 let entry = project.entry_for_path(&project_path, cx)?;
6200 let abs_path = project.absolute_path(&project_path, cx)?;
6201 let parent = if entry.is_symlink {
6202 abs_path.canonicalize().ok()?
6203 } else {
6204 abs_path
6205 }
6206 .parent()?
6207 .to_path_buf();
6208 Some(parent)
6209 }) {
6210 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6211 }
6212 }
6213
6214 fn gather_revert_changes(
6215 &mut self,
6216 selections: &[Selection<Anchor>],
6217 cx: &mut ViewContext<'_, Editor>,
6218 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6219 let mut revert_changes = HashMap::default();
6220 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6221 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6222 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6223 }
6224 revert_changes
6225 }
6226
6227 pub fn prepare_revert_change(
6228 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6229 multi_buffer: &Model<MultiBuffer>,
6230 hunk: &MultiBufferDiffHunk,
6231 cx: &AppContext,
6232 ) -> Option<()> {
6233 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6234 let buffer = buffer.read(cx);
6235 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6236 let buffer_snapshot = buffer.snapshot();
6237 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6238 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6239 probe
6240 .0
6241 .start
6242 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6243 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6244 }) {
6245 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6246 Some(())
6247 } else {
6248 None
6249 }
6250 }
6251
6252 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6253 self.manipulate_lines(cx, |lines| lines.reverse())
6254 }
6255
6256 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6257 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6258 }
6259
6260 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6261 where
6262 Fn: FnMut(&mut Vec<&str>),
6263 {
6264 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6265 let buffer = self.buffer.read(cx).snapshot(cx);
6266
6267 let mut edits = Vec::new();
6268
6269 let selections = self.selections.all::<Point>(cx);
6270 let mut selections = selections.iter().peekable();
6271 let mut contiguous_row_selections = Vec::new();
6272 let mut new_selections = Vec::new();
6273 let mut added_lines = 0;
6274 let mut removed_lines = 0;
6275
6276 while let Some(selection) = selections.next() {
6277 let (start_row, end_row) = consume_contiguous_rows(
6278 &mut contiguous_row_selections,
6279 selection,
6280 &display_map,
6281 &mut selections,
6282 );
6283
6284 let start_point = Point::new(start_row.0, 0);
6285 let end_point = Point::new(
6286 end_row.previous_row().0,
6287 buffer.line_len(end_row.previous_row()),
6288 );
6289 let text = buffer
6290 .text_for_range(start_point..end_point)
6291 .collect::<String>();
6292
6293 let mut lines = text.split('\n').collect_vec();
6294
6295 let lines_before = lines.len();
6296 callback(&mut lines);
6297 let lines_after = lines.len();
6298
6299 edits.push((start_point..end_point, lines.join("\n")));
6300
6301 // Selections must change based on added and removed line count
6302 let start_row =
6303 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6304 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6305 new_selections.push(Selection {
6306 id: selection.id,
6307 start: start_row,
6308 end: end_row,
6309 goal: SelectionGoal::None,
6310 reversed: selection.reversed,
6311 });
6312
6313 if lines_after > lines_before {
6314 added_lines += lines_after - lines_before;
6315 } else if lines_before > lines_after {
6316 removed_lines += lines_before - lines_after;
6317 }
6318 }
6319
6320 self.transact(cx, |this, cx| {
6321 let buffer = this.buffer.update(cx, |buffer, cx| {
6322 buffer.edit(edits, None, cx);
6323 buffer.snapshot(cx)
6324 });
6325
6326 // Recalculate offsets on newly edited buffer
6327 let new_selections = new_selections
6328 .iter()
6329 .map(|s| {
6330 let start_point = Point::new(s.start.0, 0);
6331 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6332 Selection {
6333 id: s.id,
6334 start: buffer.point_to_offset(start_point),
6335 end: buffer.point_to_offset(end_point),
6336 goal: s.goal,
6337 reversed: s.reversed,
6338 }
6339 })
6340 .collect();
6341
6342 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6343 s.select(new_selections);
6344 });
6345
6346 this.request_autoscroll(Autoscroll::fit(), cx);
6347 });
6348 }
6349
6350 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6351 self.manipulate_text(cx, |text| text.to_uppercase())
6352 }
6353
6354 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6355 self.manipulate_text(cx, |text| text.to_lowercase())
6356 }
6357
6358 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6359 self.manipulate_text(cx, |text| {
6360 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6361 // https://github.com/rutrum/convert-case/issues/16
6362 text.split('\n')
6363 .map(|line| line.to_case(Case::Title))
6364 .join("\n")
6365 })
6366 }
6367
6368 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6369 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6370 }
6371
6372 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6373 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6374 }
6375
6376 pub fn convert_to_upper_camel_case(
6377 &mut self,
6378 _: &ConvertToUpperCamelCase,
6379 cx: &mut ViewContext<Self>,
6380 ) {
6381 self.manipulate_text(cx, |text| {
6382 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6383 // https://github.com/rutrum/convert-case/issues/16
6384 text.split('\n')
6385 .map(|line| line.to_case(Case::UpperCamel))
6386 .join("\n")
6387 })
6388 }
6389
6390 pub fn convert_to_lower_camel_case(
6391 &mut self,
6392 _: &ConvertToLowerCamelCase,
6393 cx: &mut ViewContext<Self>,
6394 ) {
6395 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6396 }
6397
6398 pub fn convert_to_opposite_case(
6399 &mut self,
6400 _: &ConvertToOppositeCase,
6401 cx: &mut ViewContext<Self>,
6402 ) {
6403 self.manipulate_text(cx, |text| {
6404 text.chars()
6405 .fold(String::with_capacity(text.len()), |mut t, c| {
6406 if c.is_uppercase() {
6407 t.extend(c.to_lowercase());
6408 } else {
6409 t.extend(c.to_uppercase());
6410 }
6411 t
6412 })
6413 })
6414 }
6415
6416 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6417 where
6418 Fn: FnMut(&str) -> String,
6419 {
6420 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6421 let buffer = self.buffer.read(cx).snapshot(cx);
6422
6423 let mut new_selections = Vec::new();
6424 let mut edits = Vec::new();
6425 let mut selection_adjustment = 0i32;
6426
6427 for selection in self.selections.all::<usize>(cx) {
6428 let selection_is_empty = selection.is_empty();
6429
6430 let (start, end) = if selection_is_empty {
6431 let word_range = movement::surrounding_word(
6432 &display_map,
6433 selection.start.to_display_point(&display_map),
6434 );
6435 let start = word_range.start.to_offset(&display_map, Bias::Left);
6436 let end = word_range.end.to_offset(&display_map, Bias::Left);
6437 (start, end)
6438 } else {
6439 (selection.start, selection.end)
6440 };
6441
6442 let text = buffer.text_for_range(start..end).collect::<String>();
6443 let old_length = text.len() as i32;
6444 let text = callback(&text);
6445
6446 new_selections.push(Selection {
6447 start: (start as i32 - selection_adjustment) as usize,
6448 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6449 goal: SelectionGoal::None,
6450 ..selection
6451 });
6452
6453 selection_adjustment += old_length - text.len() as i32;
6454
6455 edits.push((start..end, text));
6456 }
6457
6458 self.transact(cx, |this, cx| {
6459 this.buffer.update(cx, |buffer, cx| {
6460 buffer.edit(edits, None, cx);
6461 });
6462
6463 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6464 s.select(new_selections);
6465 });
6466
6467 this.request_autoscroll(Autoscroll::fit(), cx);
6468 });
6469 }
6470
6471 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6472 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6473 let buffer = &display_map.buffer_snapshot;
6474 let selections = self.selections.all::<Point>(cx);
6475
6476 let mut edits = Vec::new();
6477 let mut selections_iter = selections.iter().peekable();
6478 while let Some(selection) = selections_iter.next() {
6479 // Avoid duplicating the same lines twice.
6480 let mut rows = selection.spanned_rows(false, &display_map);
6481
6482 while let Some(next_selection) = selections_iter.peek() {
6483 let next_rows = next_selection.spanned_rows(false, &display_map);
6484 if next_rows.start < rows.end {
6485 rows.end = next_rows.end;
6486 selections_iter.next().unwrap();
6487 } else {
6488 break;
6489 }
6490 }
6491
6492 // Copy the text from the selected row region and splice it either at the start
6493 // or end of the region.
6494 let start = Point::new(rows.start.0, 0);
6495 let end = Point::new(
6496 rows.end.previous_row().0,
6497 buffer.line_len(rows.end.previous_row()),
6498 );
6499 let text = buffer
6500 .text_for_range(start..end)
6501 .chain(Some("\n"))
6502 .collect::<String>();
6503 let insert_location = if upwards {
6504 Point::new(rows.end.0, 0)
6505 } else {
6506 start
6507 };
6508 edits.push((insert_location..insert_location, text));
6509 }
6510
6511 self.transact(cx, |this, cx| {
6512 this.buffer.update(cx, |buffer, cx| {
6513 buffer.edit(edits, None, cx);
6514 });
6515
6516 this.request_autoscroll(Autoscroll::fit(), cx);
6517 });
6518 }
6519
6520 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6521 self.duplicate_line(true, cx);
6522 }
6523
6524 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6525 self.duplicate_line(false, cx);
6526 }
6527
6528 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6529 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6530 let buffer = self.buffer.read(cx).snapshot(cx);
6531
6532 let mut edits = Vec::new();
6533 let mut unfold_ranges = Vec::new();
6534 let mut refold_ranges = Vec::new();
6535
6536 let selections = self.selections.all::<Point>(cx);
6537 let mut selections = selections.iter().peekable();
6538 let mut contiguous_row_selections = Vec::new();
6539 let mut new_selections = Vec::new();
6540
6541 while let Some(selection) = selections.next() {
6542 // Find all the selections that span a contiguous row range
6543 let (start_row, end_row) = consume_contiguous_rows(
6544 &mut contiguous_row_selections,
6545 selection,
6546 &display_map,
6547 &mut selections,
6548 );
6549
6550 // Move the text spanned by the row range to be before the line preceding the row range
6551 if start_row.0 > 0 {
6552 let range_to_move = Point::new(
6553 start_row.previous_row().0,
6554 buffer.line_len(start_row.previous_row()),
6555 )
6556 ..Point::new(
6557 end_row.previous_row().0,
6558 buffer.line_len(end_row.previous_row()),
6559 );
6560 let insertion_point = display_map
6561 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6562 .0;
6563
6564 // Don't move lines across excerpts
6565 if buffer
6566 .excerpt_boundaries_in_range((
6567 Bound::Excluded(insertion_point),
6568 Bound::Included(range_to_move.end),
6569 ))
6570 .next()
6571 .is_none()
6572 {
6573 let text = buffer
6574 .text_for_range(range_to_move.clone())
6575 .flat_map(|s| s.chars())
6576 .skip(1)
6577 .chain(['\n'])
6578 .collect::<String>();
6579
6580 edits.push((
6581 buffer.anchor_after(range_to_move.start)
6582 ..buffer.anchor_before(range_to_move.end),
6583 String::new(),
6584 ));
6585 let insertion_anchor = buffer.anchor_after(insertion_point);
6586 edits.push((insertion_anchor..insertion_anchor, text));
6587
6588 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6589
6590 // Move selections up
6591 new_selections.extend(contiguous_row_selections.drain(..).map(
6592 |mut selection| {
6593 selection.start.row -= row_delta;
6594 selection.end.row -= row_delta;
6595 selection
6596 },
6597 ));
6598
6599 // Move folds up
6600 unfold_ranges.push(range_to_move.clone());
6601 for fold in display_map.folds_in_range(
6602 buffer.anchor_before(range_to_move.start)
6603 ..buffer.anchor_after(range_to_move.end),
6604 ) {
6605 let mut start = fold.range.start.to_point(&buffer);
6606 let mut end = fold.range.end.to_point(&buffer);
6607 start.row -= row_delta;
6608 end.row -= row_delta;
6609 refold_ranges.push((start..end, fold.placeholder.clone()));
6610 }
6611 }
6612 }
6613
6614 // If we didn't move line(s), preserve the existing selections
6615 new_selections.append(&mut contiguous_row_selections);
6616 }
6617
6618 self.transact(cx, |this, cx| {
6619 this.unfold_ranges(unfold_ranges, true, true, cx);
6620 this.buffer.update(cx, |buffer, cx| {
6621 for (range, text) in edits {
6622 buffer.edit([(range, text)], None, cx);
6623 }
6624 });
6625 this.fold_ranges(refold_ranges, true, cx);
6626 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6627 s.select(new_selections);
6628 })
6629 });
6630 }
6631
6632 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6633 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6634 let buffer = self.buffer.read(cx).snapshot(cx);
6635
6636 let mut edits = Vec::new();
6637 let mut unfold_ranges = Vec::new();
6638 let mut refold_ranges = Vec::new();
6639
6640 let selections = self.selections.all::<Point>(cx);
6641 let mut selections = selections.iter().peekable();
6642 let mut contiguous_row_selections = Vec::new();
6643 let mut new_selections = Vec::new();
6644
6645 while let Some(selection) = selections.next() {
6646 // Find all the selections that span a contiguous row range
6647 let (start_row, end_row) = consume_contiguous_rows(
6648 &mut contiguous_row_selections,
6649 selection,
6650 &display_map,
6651 &mut selections,
6652 );
6653
6654 // Move the text spanned by the row range to be after the last line of the row range
6655 if end_row.0 <= buffer.max_point().row {
6656 let range_to_move =
6657 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6658 let insertion_point = display_map
6659 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6660 .0;
6661
6662 // Don't move lines across excerpt boundaries
6663 if buffer
6664 .excerpt_boundaries_in_range((
6665 Bound::Excluded(range_to_move.start),
6666 Bound::Included(insertion_point),
6667 ))
6668 .next()
6669 .is_none()
6670 {
6671 let mut text = String::from("\n");
6672 text.extend(buffer.text_for_range(range_to_move.clone()));
6673 text.pop(); // Drop trailing newline
6674 edits.push((
6675 buffer.anchor_after(range_to_move.start)
6676 ..buffer.anchor_before(range_to_move.end),
6677 String::new(),
6678 ));
6679 let insertion_anchor = buffer.anchor_after(insertion_point);
6680 edits.push((insertion_anchor..insertion_anchor, text));
6681
6682 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6683
6684 // Move selections down
6685 new_selections.extend(contiguous_row_selections.drain(..).map(
6686 |mut selection| {
6687 selection.start.row += row_delta;
6688 selection.end.row += row_delta;
6689 selection
6690 },
6691 ));
6692
6693 // Move folds down
6694 unfold_ranges.push(range_to_move.clone());
6695 for fold in display_map.folds_in_range(
6696 buffer.anchor_before(range_to_move.start)
6697 ..buffer.anchor_after(range_to_move.end),
6698 ) {
6699 let mut start = fold.range.start.to_point(&buffer);
6700 let mut end = fold.range.end.to_point(&buffer);
6701 start.row += row_delta;
6702 end.row += row_delta;
6703 refold_ranges.push((start..end, fold.placeholder.clone()));
6704 }
6705 }
6706 }
6707
6708 // If we didn't move line(s), preserve the existing selections
6709 new_selections.append(&mut contiguous_row_selections);
6710 }
6711
6712 self.transact(cx, |this, cx| {
6713 this.unfold_ranges(unfold_ranges, true, true, cx);
6714 this.buffer.update(cx, |buffer, cx| {
6715 for (range, text) in edits {
6716 buffer.edit([(range, text)], None, cx);
6717 }
6718 });
6719 this.fold_ranges(refold_ranges, true, cx);
6720 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6721 });
6722 }
6723
6724 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6725 let text_layout_details = &self.text_layout_details(cx);
6726 self.transact(cx, |this, cx| {
6727 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6728 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6729 let line_mode = s.line_mode;
6730 s.move_with(|display_map, selection| {
6731 if !selection.is_empty() || line_mode {
6732 return;
6733 }
6734
6735 let mut head = selection.head();
6736 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6737 if head.column() == display_map.line_len(head.row()) {
6738 transpose_offset = display_map
6739 .buffer_snapshot
6740 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6741 }
6742
6743 if transpose_offset == 0 {
6744 return;
6745 }
6746
6747 *head.column_mut() += 1;
6748 head = display_map.clip_point(head, Bias::Right);
6749 let goal = SelectionGoal::HorizontalPosition(
6750 display_map
6751 .x_for_display_point(head, text_layout_details)
6752 .into(),
6753 );
6754 selection.collapse_to(head, goal);
6755
6756 let transpose_start = display_map
6757 .buffer_snapshot
6758 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6759 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6760 let transpose_end = display_map
6761 .buffer_snapshot
6762 .clip_offset(transpose_offset + 1, Bias::Right);
6763 if let Some(ch) =
6764 display_map.buffer_snapshot.chars_at(transpose_start).next()
6765 {
6766 edits.push((transpose_start..transpose_offset, String::new()));
6767 edits.push((transpose_end..transpose_end, ch.to_string()));
6768 }
6769 }
6770 });
6771 edits
6772 });
6773 this.buffer
6774 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6775 let selections = this.selections.all::<usize>(cx);
6776 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6777 s.select(selections);
6778 });
6779 });
6780 }
6781
6782 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6783 self.rewrap_impl(true, cx)
6784 }
6785
6786 pub fn rewrap_impl(&mut self, only_text: bool, cx: &mut ViewContext<Self>) {
6787 let buffer = self.buffer.read(cx).snapshot(cx);
6788 let selections = self.selections.all::<Point>(cx);
6789 let mut selections = selections.iter().peekable();
6790
6791 let mut edits = Vec::new();
6792 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6793
6794 while let Some(selection) = selections.next() {
6795 let mut start_row = selection.start.row;
6796 let mut end_row = selection.end.row;
6797
6798 // Skip selections that overlap with a range that has already been rewrapped.
6799 let selection_range = start_row..end_row;
6800 if rewrapped_row_ranges
6801 .iter()
6802 .any(|range| range.overlaps(&selection_range))
6803 {
6804 continue;
6805 }
6806
6807 let mut should_rewrap = !only_text;
6808
6809 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6810 match language_scope.language_name().0.as_ref() {
6811 "Markdown" | "Plain Text" => {
6812 should_rewrap = true;
6813 }
6814 _ => {}
6815 }
6816 }
6817
6818 // Since not all lines in the selection may be at the same indent
6819 // level, choose the indent size that is the most common between all
6820 // of the lines.
6821 //
6822 // If there is a tie, we use the deepest indent.
6823 let (indent_size, indent_end) = {
6824 let mut indent_size_occurrences = HashMap::default();
6825 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6826
6827 for row in start_row..=end_row {
6828 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6829 rows_by_indent_size.entry(indent).or_default().push(row);
6830 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6831 }
6832
6833 let indent_size = indent_size_occurrences
6834 .into_iter()
6835 .max_by_key(|(indent, count)| (*count, indent.len))
6836 .map(|(indent, _)| indent)
6837 .unwrap_or_default();
6838 let row = rows_by_indent_size[&indent_size][0];
6839 let indent_end = Point::new(row, indent_size.len);
6840
6841 (indent_size, indent_end)
6842 };
6843
6844 let mut line_prefix = indent_size.chars().collect::<String>();
6845
6846 if let Some(comment_prefix) =
6847 buffer
6848 .language_scope_at(selection.head())
6849 .and_then(|language| {
6850 language
6851 .line_comment_prefixes()
6852 .iter()
6853 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6854 .cloned()
6855 })
6856 {
6857 line_prefix.push_str(&comment_prefix);
6858 should_rewrap = true;
6859 }
6860
6861 if selection.is_empty() {
6862 'expand_upwards: while start_row > 0 {
6863 let prev_row = start_row - 1;
6864 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6865 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6866 {
6867 start_row = prev_row;
6868 } else {
6869 break 'expand_upwards;
6870 }
6871 }
6872
6873 'expand_downwards: while end_row < buffer.max_point().row {
6874 let next_row = end_row + 1;
6875 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6876 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6877 {
6878 end_row = next_row;
6879 } else {
6880 break 'expand_downwards;
6881 }
6882 }
6883 }
6884
6885 if !should_rewrap {
6886 continue;
6887 }
6888
6889 let start = Point::new(start_row, 0);
6890 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6891 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6892 let Some(lines_without_prefixes) = selection_text
6893 .lines()
6894 .map(|line| {
6895 line.strip_prefix(&line_prefix)
6896 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6897 .ok_or_else(|| {
6898 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6899 })
6900 })
6901 .collect::<Result<Vec<_>, _>>()
6902 .log_err()
6903 else {
6904 continue;
6905 };
6906
6907 let unwrapped_text = lines_without_prefixes.join(" ");
6908 let wrap_column = buffer
6909 .settings_at(Point::new(start_row, 0), cx)
6910 .preferred_line_length as usize;
6911 let mut wrapped_text = String::new();
6912 let mut current_line = line_prefix.clone();
6913 for word in unwrapped_text.split_whitespace() {
6914 if current_line.len() + word.len() >= wrap_column {
6915 wrapped_text.push_str(¤t_line);
6916 wrapped_text.push('\n');
6917 current_line.truncate(line_prefix.len());
6918 }
6919
6920 if current_line.len() > line_prefix.len() {
6921 current_line.push(' ');
6922 }
6923
6924 current_line.push_str(word);
6925 }
6926
6927 if !current_line.is_empty() {
6928 wrapped_text.push_str(¤t_line);
6929 }
6930
6931 let diff = TextDiff::from_lines(&selection_text, &wrapped_text);
6932 let mut offset = start.to_offset(&buffer);
6933 let mut moved_since_edit = true;
6934
6935 for change in diff.iter_all_changes() {
6936 let value = change.value();
6937 match change.tag() {
6938 ChangeTag::Equal => {
6939 offset += value.len();
6940 moved_since_edit = true;
6941 }
6942 ChangeTag::Delete => {
6943 let start = buffer.anchor_after(offset);
6944 let end = buffer.anchor_before(offset + value.len());
6945
6946 if moved_since_edit {
6947 edits.push((start..end, String::new()));
6948 } else {
6949 edits.last_mut().unwrap().0.end = end;
6950 }
6951
6952 offset += value.len();
6953 moved_since_edit = false;
6954 }
6955 ChangeTag::Insert => {
6956 if moved_since_edit {
6957 let anchor = buffer.anchor_after(offset);
6958 edits.push((anchor..anchor, value.to_string()));
6959 } else {
6960 edits.last_mut().unwrap().1.push_str(value);
6961 }
6962
6963 moved_since_edit = false;
6964 }
6965 }
6966 }
6967
6968 rewrapped_row_ranges.push(start_row..=end_row);
6969 }
6970
6971 self.buffer
6972 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6973 }
6974
6975 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6976 let mut text = String::new();
6977 let buffer = self.buffer.read(cx).snapshot(cx);
6978 let mut selections = self.selections.all::<Point>(cx);
6979 let mut clipboard_selections = Vec::with_capacity(selections.len());
6980 {
6981 let max_point = buffer.max_point();
6982 let mut is_first = true;
6983 for selection in &mut selections {
6984 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6985 if is_entire_line {
6986 selection.start = Point::new(selection.start.row, 0);
6987 if !selection.is_empty() && selection.end.column == 0 {
6988 selection.end = cmp::min(max_point, selection.end);
6989 } else {
6990 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6991 }
6992 selection.goal = SelectionGoal::None;
6993 }
6994 if is_first {
6995 is_first = false;
6996 } else {
6997 text += "\n";
6998 }
6999 let mut len = 0;
7000 for chunk in buffer.text_for_range(selection.start..selection.end) {
7001 text.push_str(chunk);
7002 len += chunk.len();
7003 }
7004 clipboard_selections.push(ClipboardSelection {
7005 len,
7006 is_entire_line,
7007 first_line_indent: buffer
7008 .indent_size_for_line(MultiBufferRow(selection.start.row))
7009 .len,
7010 });
7011 }
7012 }
7013
7014 self.transact(cx, |this, cx| {
7015 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7016 s.select(selections);
7017 });
7018 this.insert("", cx);
7019 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7020 text,
7021 clipboard_selections,
7022 ));
7023 });
7024 }
7025
7026 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7027 let selections = self.selections.all::<Point>(cx);
7028 let buffer = self.buffer.read(cx).read(cx);
7029 let mut text = String::new();
7030
7031 let mut clipboard_selections = Vec::with_capacity(selections.len());
7032 {
7033 let max_point = buffer.max_point();
7034 let mut is_first = true;
7035 for selection in selections.iter() {
7036 let mut start = selection.start;
7037 let mut end = selection.end;
7038 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7039 if is_entire_line {
7040 start = Point::new(start.row, 0);
7041 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7042 }
7043 if is_first {
7044 is_first = false;
7045 } else {
7046 text += "\n";
7047 }
7048 let mut len = 0;
7049 for chunk in buffer.text_for_range(start..end) {
7050 text.push_str(chunk);
7051 len += chunk.len();
7052 }
7053 clipboard_selections.push(ClipboardSelection {
7054 len,
7055 is_entire_line,
7056 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7057 });
7058 }
7059 }
7060
7061 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7062 text,
7063 clipboard_selections,
7064 ));
7065 }
7066
7067 pub fn do_paste(
7068 &mut self,
7069 text: &String,
7070 clipboard_selections: Option<Vec<ClipboardSelection>>,
7071 handle_entire_lines: bool,
7072 cx: &mut ViewContext<Self>,
7073 ) {
7074 if self.read_only(cx) {
7075 return;
7076 }
7077
7078 let clipboard_text = Cow::Borrowed(text);
7079
7080 self.transact(cx, |this, cx| {
7081 if let Some(mut clipboard_selections) = clipboard_selections {
7082 let old_selections = this.selections.all::<usize>(cx);
7083 let all_selections_were_entire_line =
7084 clipboard_selections.iter().all(|s| s.is_entire_line);
7085 let first_selection_indent_column =
7086 clipboard_selections.first().map(|s| s.first_line_indent);
7087 if clipboard_selections.len() != old_selections.len() {
7088 clipboard_selections.drain(..);
7089 }
7090
7091 this.buffer.update(cx, |buffer, cx| {
7092 let snapshot = buffer.read(cx);
7093 let mut start_offset = 0;
7094 let mut edits = Vec::new();
7095 let mut original_indent_columns = Vec::new();
7096 for (ix, selection) in old_selections.iter().enumerate() {
7097 let to_insert;
7098 let entire_line;
7099 let original_indent_column;
7100 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7101 let end_offset = start_offset + clipboard_selection.len;
7102 to_insert = &clipboard_text[start_offset..end_offset];
7103 entire_line = clipboard_selection.is_entire_line;
7104 start_offset = end_offset + 1;
7105 original_indent_column = Some(clipboard_selection.first_line_indent);
7106 } else {
7107 to_insert = clipboard_text.as_str();
7108 entire_line = all_selections_were_entire_line;
7109 original_indent_column = first_selection_indent_column
7110 }
7111
7112 // If the corresponding selection was empty when this slice of the
7113 // clipboard text was written, then the entire line containing the
7114 // selection was copied. If this selection is also currently empty,
7115 // then paste the line before the current line of the buffer.
7116 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7117 let column = selection.start.to_point(&snapshot).column as usize;
7118 let line_start = selection.start - column;
7119 line_start..line_start
7120 } else {
7121 selection.range()
7122 };
7123
7124 edits.push((range, to_insert));
7125 original_indent_columns.extend(original_indent_column);
7126 }
7127 drop(snapshot);
7128
7129 buffer.edit(
7130 edits,
7131 Some(AutoindentMode::Block {
7132 original_indent_columns,
7133 }),
7134 cx,
7135 );
7136 });
7137
7138 let selections = this.selections.all::<usize>(cx);
7139 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7140 } else {
7141 this.insert(&clipboard_text, cx);
7142 }
7143 });
7144 }
7145
7146 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7147 if let Some(item) = cx.read_from_clipboard() {
7148 let entries = item.entries();
7149
7150 match entries.first() {
7151 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7152 // of all the pasted entries.
7153 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7154 .do_paste(
7155 clipboard_string.text(),
7156 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7157 true,
7158 cx,
7159 ),
7160 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7161 }
7162 }
7163 }
7164
7165 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7166 if self.read_only(cx) {
7167 return;
7168 }
7169
7170 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7171 if let Some((selections, _)) =
7172 self.selection_history.transaction(transaction_id).cloned()
7173 {
7174 self.change_selections(None, cx, |s| {
7175 s.select_anchors(selections.to_vec());
7176 });
7177 }
7178 self.request_autoscroll(Autoscroll::fit(), cx);
7179 self.unmark_text(cx);
7180 self.refresh_inline_completion(true, false, cx);
7181 cx.emit(EditorEvent::Edited { transaction_id });
7182 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7183 }
7184 }
7185
7186 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7187 if self.read_only(cx) {
7188 return;
7189 }
7190
7191 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7192 if let Some((_, Some(selections))) =
7193 self.selection_history.transaction(transaction_id).cloned()
7194 {
7195 self.change_selections(None, cx, |s| {
7196 s.select_anchors(selections.to_vec());
7197 });
7198 }
7199 self.request_autoscroll(Autoscroll::fit(), cx);
7200 self.unmark_text(cx);
7201 self.refresh_inline_completion(true, false, cx);
7202 cx.emit(EditorEvent::Edited { transaction_id });
7203 }
7204 }
7205
7206 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7207 self.buffer
7208 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7209 }
7210
7211 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7212 self.buffer
7213 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7214 }
7215
7216 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7217 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7218 let line_mode = s.line_mode;
7219 s.move_with(|map, selection| {
7220 let cursor = if selection.is_empty() && !line_mode {
7221 movement::left(map, selection.start)
7222 } else {
7223 selection.start
7224 };
7225 selection.collapse_to(cursor, SelectionGoal::None);
7226 });
7227 })
7228 }
7229
7230 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7231 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7232 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7233 })
7234 }
7235
7236 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7237 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7238 let line_mode = s.line_mode;
7239 s.move_with(|map, selection| {
7240 let cursor = if selection.is_empty() && !line_mode {
7241 movement::right(map, selection.end)
7242 } else {
7243 selection.end
7244 };
7245 selection.collapse_to(cursor, SelectionGoal::None)
7246 });
7247 })
7248 }
7249
7250 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7251 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7252 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7253 })
7254 }
7255
7256 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7257 if self.take_rename(true, cx).is_some() {
7258 return;
7259 }
7260
7261 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7262 cx.propagate();
7263 return;
7264 }
7265
7266 let text_layout_details = &self.text_layout_details(cx);
7267 let selection_count = self.selections.count();
7268 let first_selection = self.selections.first_anchor();
7269
7270 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7271 let line_mode = s.line_mode;
7272 s.move_with(|map, selection| {
7273 if !selection.is_empty() && !line_mode {
7274 selection.goal = SelectionGoal::None;
7275 }
7276 let (cursor, goal) = movement::up(
7277 map,
7278 selection.start,
7279 selection.goal,
7280 false,
7281 text_layout_details,
7282 );
7283 selection.collapse_to(cursor, goal);
7284 });
7285 });
7286
7287 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7288 {
7289 cx.propagate();
7290 }
7291 }
7292
7293 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7294 if self.take_rename(true, cx).is_some() {
7295 return;
7296 }
7297
7298 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7299 cx.propagate();
7300 return;
7301 }
7302
7303 let text_layout_details = &self.text_layout_details(cx);
7304
7305 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7306 let line_mode = s.line_mode;
7307 s.move_with(|map, selection| {
7308 if !selection.is_empty() && !line_mode {
7309 selection.goal = SelectionGoal::None;
7310 }
7311 let (cursor, goal) = movement::up_by_rows(
7312 map,
7313 selection.start,
7314 action.lines,
7315 selection.goal,
7316 false,
7317 text_layout_details,
7318 );
7319 selection.collapse_to(cursor, goal);
7320 });
7321 })
7322 }
7323
7324 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7325 if self.take_rename(true, cx).is_some() {
7326 return;
7327 }
7328
7329 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7330 cx.propagate();
7331 return;
7332 }
7333
7334 let text_layout_details = &self.text_layout_details(cx);
7335
7336 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7337 let line_mode = s.line_mode;
7338 s.move_with(|map, selection| {
7339 if !selection.is_empty() && !line_mode {
7340 selection.goal = SelectionGoal::None;
7341 }
7342 let (cursor, goal) = movement::down_by_rows(
7343 map,
7344 selection.start,
7345 action.lines,
7346 selection.goal,
7347 false,
7348 text_layout_details,
7349 );
7350 selection.collapse_to(cursor, goal);
7351 });
7352 })
7353 }
7354
7355 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7356 let text_layout_details = &self.text_layout_details(cx);
7357 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7358 s.move_heads_with(|map, head, goal| {
7359 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7360 })
7361 })
7362 }
7363
7364 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7365 let text_layout_details = &self.text_layout_details(cx);
7366 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7367 s.move_heads_with(|map, head, goal| {
7368 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7369 })
7370 })
7371 }
7372
7373 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7374 let Some(row_count) = self.visible_row_count() else {
7375 return;
7376 };
7377
7378 let text_layout_details = &self.text_layout_details(cx);
7379
7380 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7381 s.move_heads_with(|map, head, goal| {
7382 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7383 })
7384 })
7385 }
7386
7387 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7388 if self.take_rename(true, cx).is_some() {
7389 return;
7390 }
7391
7392 if self
7393 .context_menu
7394 .write()
7395 .as_mut()
7396 .map(|menu| menu.select_first(self.project.as_ref(), cx))
7397 .unwrap_or(false)
7398 {
7399 return;
7400 }
7401
7402 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7403 cx.propagate();
7404 return;
7405 }
7406
7407 let Some(row_count) = self.visible_row_count() else {
7408 return;
7409 };
7410
7411 let autoscroll = if action.center_cursor {
7412 Autoscroll::center()
7413 } else {
7414 Autoscroll::fit()
7415 };
7416
7417 let text_layout_details = &self.text_layout_details(cx);
7418
7419 self.change_selections(Some(autoscroll), cx, |s| {
7420 let line_mode = s.line_mode;
7421 s.move_with(|map, selection| {
7422 if !selection.is_empty() && !line_mode {
7423 selection.goal = SelectionGoal::None;
7424 }
7425 let (cursor, goal) = movement::up_by_rows(
7426 map,
7427 selection.end,
7428 row_count,
7429 selection.goal,
7430 false,
7431 text_layout_details,
7432 );
7433 selection.collapse_to(cursor, goal);
7434 });
7435 });
7436 }
7437
7438 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7439 let text_layout_details = &self.text_layout_details(cx);
7440 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7441 s.move_heads_with(|map, head, goal| {
7442 movement::up(map, head, goal, false, text_layout_details)
7443 })
7444 })
7445 }
7446
7447 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7448 self.take_rename(true, cx);
7449
7450 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7451 cx.propagate();
7452 return;
7453 }
7454
7455 let text_layout_details = &self.text_layout_details(cx);
7456 let selection_count = self.selections.count();
7457 let first_selection = self.selections.first_anchor();
7458
7459 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7460 let line_mode = s.line_mode;
7461 s.move_with(|map, selection| {
7462 if !selection.is_empty() && !line_mode {
7463 selection.goal = SelectionGoal::None;
7464 }
7465 let (cursor, goal) = movement::down(
7466 map,
7467 selection.end,
7468 selection.goal,
7469 false,
7470 text_layout_details,
7471 );
7472 selection.collapse_to(cursor, goal);
7473 });
7474 });
7475
7476 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7477 {
7478 cx.propagate();
7479 }
7480 }
7481
7482 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7483 let Some(row_count) = self.visible_row_count() else {
7484 return;
7485 };
7486
7487 let text_layout_details = &self.text_layout_details(cx);
7488
7489 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7490 s.move_heads_with(|map, head, goal| {
7491 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7492 })
7493 })
7494 }
7495
7496 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7497 if self.take_rename(true, cx).is_some() {
7498 return;
7499 }
7500
7501 if self
7502 .context_menu
7503 .write()
7504 .as_mut()
7505 .map(|menu| menu.select_last(self.project.as_ref(), cx))
7506 .unwrap_or(false)
7507 {
7508 return;
7509 }
7510
7511 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7512 cx.propagate();
7513 return;
7514 }
7515
7516 let Some(row_count) = self.visible_row_count() else {
7517 return;
7518 };
7519
7520 let autoscroll = if action.center_cursor {
7521 Autoscroll::center()
7522 } else {
7523 Autoscroll::fit()
7524 };
7525
7526 let text_layout_details = &self.text_layout_details(cx);
7527 self.change_selections(Some(autoscroll), cx, |s| {
7528 let line_mode = s.line_mode;
7529 s.move_with(|map, selection| {
7530 if !selection.is_empty() && !line_mode {
7531 selection.goal = SelectionGoal::None;
7532 }
7533 let (cursor, goal) = movement::down_by_rows(
7534 map,
7535 selection.end,
7536 row_count,
7537 selection.goal,
7538 false,
7539 text_layout_details,
7540 );
7541 selection.collapse_to(cursor, goal);
7542 });
7543 });
7544 }
7545
7546 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7547 let text_layout_details = &self.text_layout_details(cx);
7548 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7549 s.move_heads_with(|map, head, goal| {
7550 movement::down(map, head, goal, false, text_layout_details)
7551 })
7552 });
7553 }
7554
7555 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7556 if let Some(context_menu) = self.context_menu.write().as_mut() {
7557 context_menu.select_first(self.project.as_ref(), cx);
7558 }
7559 }
7560
7561 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7562 if let Some(context_menu) = self.context_menu.write().as_mut() {
7563 context_menu.select_prev(self.project.as_ref(), cx);
7564 }
7565 }
7566
7567 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7568 if let Some(context_menu) = self.context_menu.write().as_mut() {
7569 context_menu.select_next(self.project.as_ref(), cx);
7570 }
7571 }
7572
7573 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7574 if let Some(context_menu) = self.context_menu.write().as_mut() {
7575 context_menu.select_last(self.project.as_ref(), cx);
7576 }
7577 }
7578
7579 pub fn move_to_previous_word_start(
7580 &mut self,
7581 _: &MoveToPreviousWordStart,
7582 cx: &mut ViewContext<Self>,
7583 ) {
7584 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7585 s.move_cursors_with(|map, head, _| {
7586 (
7587 movement::previous_word_start(map, head),
7588 SelectionGoal::None,
7589 )
7590 });
7591 })
7592 }
7593
7594 pub fn move_to_previous_subword_start(
7595 &mut self,
7596 _: &MoveToPreviousSubwordStart,
7597 cx: &mut ViewContext<Self>,
7598 ) {
7599 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7600 s.move_cursors_with(|map, head, _| {
7601 (
7602 movement::previous_subword_start(map, head),
7603 SelectionGoal::None,
7604 )
7605 });
7606 })
7607 }
7608
7609 pub fn select_to_previous_word_start(
7610 &mut self,
7611 _: &SelectToPreviousWordStart,
7612 cx: &mut ViewContext<Self>,
7613 ) {
7614 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7615 s.move_heads_with(|map, head, _| {
7616 (
7617 movement::previous_word_start(map, head),
7618 SelectionGoal::None,
7619 )
7620 });
7621 })
7622 }
7623
7624 pub fn select_to_previous_subword_start(
7625 &mut self,
7626 _: &SelectToPreviousSubwordStart,
7627 cx: &mut ViewContext<Self>,
7628 ) {
7629 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7630 s.move_heads_with(|map, head, _| {
7631 (
7632 movement::previous_subword_start(map, head),
7633 SelectionGoal::None,
7634 )
7635 });
7636 })
7637 }
7638
7639 pub fn delete_to_previous_word_start(
7640 &mut self,
7641 action: &DeleteToPreviousWordStart,
7642 cx: &mut ViewContext<Self>,
7643 ) {
7644 self.transact(cx, |this, cx| {
7645 this.select_autoclose_pair(cx);
7646 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7647 let line_mode = s.line_mode;
7648 s.move_with(|map, selection| {
7649 if selection.is_empty() && !line_mode {
7650 let cursor = if action.ignore_newlines {
7651 movement::previous_word_start(map, selection.head())
7652 } else {
7653 movement::previous_word_start_or_newline(map, selection.head())
7654 };
7655 selection.set_head(cursor, SelectionGoal::None);
7656 }
7657 });
7658 });
7659 this.insert("", cx);
7660 });
7661 }
7662
7663 pub fn delete_to_previous_subword_start(
7664 &mut self,
7665 _: &DeleteToPreviousSubwordStart,
7666 cx: &mut ViewContext<Self>,
7667 ) {
7668 self.transact(cx, |this, cx| {
7669 this.select_autoclose_pair(cx);
7670 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7671 let line_mode = s.line_mode;
7672 s.move_with(|map, selection| {
7673 if selection.is_empty() && !line_mode {
7674 let cursor = movement::previous_subword_start(map, selection.head());
7675 selection.set_head(cursor, SelectionGoal::None);
7676 }
7677 });
7678 });
7679 this.insert("", cx);
7680 });
7681 }
7682
7683 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7684 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7685 s.move_cursors_with(|map, head, _| {
7686 (movement::next_word_end(map, head), SelectionGoal::None)
7687 });
7688 })
7689 }
7690
7691 pub fn move_to_next_subword_end(
7692 &mut self,
7693 _: &MoveToNextSubwordEnd,
7694 cx: &mut ViewContext<Self>,
7695 ) {
7696 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7697 s.move_cursors_with(|map, head, _| {
7698 (movement::next_subword_end(map, head), SelectionGoal::None)
7699 });
7700 })
7701 }
7702
7703 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7704 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7705 s.move_heads_with(|map, head, _| {
7706 (movement::next_word_end(map, head), SelectionGoal::None)
7707 });
7708 })
7709 }
7710
7711 pub fn select_to_next_subword_end(
7712 &mut self,
7713 _: &SelectToNextSubwordEnd,
7714 cx: &mut ViewContext<Self>,
7715 ) {
7716 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7717 s.move_heads_with(|map, head, _| {
7718 (movement::next_subword_end(map, head), SelectionGoal::None)
7719 });
7720 })
7721 }
7722
7723 pub fn delete_to_next_word_end(
7724 &mut self,
7725 action: &DeleteToNextWordEnd,
7726 cx: &mut ViewContext<Self>,
7727 ) {
7728 self.transact(cx, |this, cx| {
7729 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7730 let line_mode = s.line_mode;
7731 s.move_with(|map, selection| {
7732 if selection.is_empty() && !line_mode {
7733 let cursor = if action.ignore_newlines {
7734 movement::next_word_end(map, selection.head())
7735 } else {
7736 movement::next_word_end_or_newline(map, selection.head())
7737 };
7738 selection.set_head(cursor, SelectionGoal::None);
7739 }
7740 });
7741 });
7742 this.insert("", cx);
7743 });
7744 }
7745
7746 pub fn delete_to_next_subword_end(
7747 &mut self,
7748 _: &DeleteToNextSubwordEnd,
7749 cx: &mut ViewContext<Self>,
7750 ) {
7751 self.transact(cx, |this, cx| {
7752 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7753 s.move_with(|map, selection| {
7754 if selection.is_empty() {
7755 let cursor = movement::next_subword_end(map, selection.head());
7756 selection.set_head(cursor, SelectionGoal::None);
7757 }
7758 });
7759 });
7760 this.insert("", cx);
7761 });
7762 }
7763
7764 pub fn move_to_beginning_of_line(
7765 &mut self,
7766 action: &MoveToBeginningOfLine,
7767 cx: &mut ViewContext<Self>,
7768 ) {
7769 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7770 s.move_cursors_with(|map, head, _| {
7771 (
7772 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7773 SelectionGoal::None,
7774 )
7775 });
7776 })
7777 }
7778
7779 pub fn select_to_beginning_of_line(
7780 &mut self,
7781 action: &SelectToBeginningOfLine,
7782 cx: &mut ViewContext<Self>,
7783 ) {
7784 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7785 s.move_heads_with(|map, head, _| {
7786 (
7787 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7788 SelectionGoal::None,
7789 )
7790 });
7791 });
7792 }
7793
7794 pub fn delete_to_beginning_of_line(
7795 &mut self,
7796 _: &DeleteToBeginningOfLine,
7797 cx: &mut ViewContext<Self>,
7798 ) {
7799 self.transact(cx, |this, cx| {
7800 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7801 s.move_with(|_, selection| {
7802 selection.reversed = true;
7803 });
7804 });
7805
7806 this.select_to_beginning_of_line(
7807 &SelectToBeginningOfLine {
7808 stop_at_soft_wraps: false,
7809 },
7810 cx,
7811 );
7812 this.backspace(&Backspace, cx);
7813 });
7814 }
7815
7816 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7817 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7818 s.move_cursors_with(|map, head, _| {
7819 (
7820 movement::line_end(map, head, action.stop_at_soft_wraps),
7821 SelectionGoal::None,
7822 )
7823 });
7824 })
7825 }
7826
7827 pub fn select_to_end_of_line(
7828 &mut self,
7829 action: &SelectToEndOfLine,
7830 cx: &mut ViewContext<Self>,
7831 ) {
7832 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7833 s.move_heads_with(|map, head, _| {
7834 (
7835 movement::line_end(map, head, action.stop_at_soft_wraps),
7836 SelectionGoal::None,
7837 )
7838 });
7839 })
7840 }
7841
7842 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7843 self.transact(cx, |this, cx| {
7844 this.select_to_end_of_line(
7845 &SelectToEndOfLine {
7846 stop_at_soft_wraps: false,
7847 },
7848 cx,
7849 );
7850 this.delete(&Delete, cx);
7851 });
7852 }
7853
7854 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7855 self.transact(cx, |this, cx| {
7856 this.select_to_end_of_line(
7857 &SelectToEndOfLine {
7858 stop_at_soft_wraps: false,
7859 },
7860 cx,
7861 );
7862 this.cut(&Cut, cx);
7863 });
7864 }
7865
7866 pub fn move_to_start_of_paragraph(
7867 &mut self,
7868 _: &MoveToStartOfParagraph,
7869 cx: &mut ViewContext<Self>,
7870 ) {
7871 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7872 cx.propagate();
7873 return;
7874 }
7875
7876 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7877 s.move_with(|map, selection| {
7878 selection.collapse_to(
7879 movement::start_of_paragraph(map, selection.head(), 1),
7880 SelectionGoal::None,
7881 )
7882 });
7883 })
7884 }
7885
7886 pub fn move_to_end_of_paragraph(
7887 &mut self,
7888 _: &MoveToEndOfParagraph,
7889 cx: &mut ViewContext<Self>,
7890 ) {
7891 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7892 cx.propagate();
7893 return;
7894 }
7895
7896 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7897 s.move_with(|map, selection| {
7898 selection.collapse_to(
7899 movement::end_of_paragraph(map, selection.head(), 1),
7900 SelectionGoal::None,
7901 )
7902 });
7903 })
7904 }
7905
7906 pub fn select_to_start_of_paragraph(
7907 &mut self,
7908 _: &SelectToStartOfParagraph,
7909 cx: &mut ViewContext<Self>,
7910 ) {
7911 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7912 cx.propagate();
7913 return;
7914 }
7915
7916 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7917 s.move_heads_with(|map, head, _| {
7918 (
7919 movement::start_of_paragraph(map, head, 1),
7920 SelectionGoal::None,
7921 )
7922 });
7923 })
7924 }
7925
7926 pub fn select_to_end_of_paragraph(
7927 &mut self,
7928 _: &SelectToEndOfParagraph,
7929 cx: &mut ViewContext<Self>,
7930 ) {
7931 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7932 cx.propagate();
7933 return;
7934 }
7935
7936 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7937 s.move_heads_with(|map, head, _| {
7938 (
7939 movement::end_of_paragraph(map, head, 1),
7940 SelectionGoal::None,
7941 )
7942 });
7943 })
7944 }
7945
7946 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
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.select_ranges(vec![0..0]);
7954 });
7955 }
7956
7957 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7958 let mut selection = self.selections.last::<Point>(cx);
7959 selection.set_head(Point::zero(), SelectionGoal::None);
7960
7961 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7962 s.select(vec![selection]);
7963 });
7964 }
7965
7966 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7967 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7968 cx.propagate();
7969 return;
7970 }
7971
7972 let cursor = self.buffer.read(cx).read(cx).len();
7973 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7974 s.select_ranges(vec![cursor..cursor])
7975 });
7976 }
7977
7978 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7979 self.nav_history = nav_history;
7980 }
7981
7982 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7983 self.nav_history.as_ref()
7984 }
7985
7986 fn push_to_nav_history(
7987 &mut self,
7988 cursor_anchor: Anchor,
7989 new_position: Option<Point>,
7990 cx: &mut ViewContext<Self>,
7991 ) {
7992 if let Some(nav_history) = self.nav_history.as_mut() {
7993 let buffer = self.buffer.read(cx).read(cx);
7994 let cursor_position = cursor_anchor.to_point(&buffer);
7995 let scroll_state = self.scroll_manager.anchor();
7996 let scroll_top_row = scroll_state.top_row(&buffer);
7997 drop(buffer);
7998
7999 if let Some(new_position) = new_position {
8000 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8001 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8002 return;
8003 }
8004 }
8005
8006 nav_history.push(
8007 Some(NavigationData {
8008 cursor_anchor,
8009 cursor_position,
8010 scroll_anchor: scroll_state,
8011 scroll_top_row,
8012 }),
8013 cx,
8014 );
8015 }
8016 }
8017
8018 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8019 let buffer = self.buffer.read(cx).snapshot(cx);
8020 let mut selection = self.selections.first::<usize>(cx);
8021 selection.set_head(buffer.len(), SelectionGoal::None);
8022 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8023 s.select(vec![selection]);
8024 });
8025 }
8026
8027 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8028 let end = self.buffer.read(cx).read(cx).len();
8029 self.change_selections(None, cx, |s| {
8030 s.select_ranges(vec![0..end]);
8031 });
8032 }
8033
8034 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8035 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8036 let mut selections = self.selections.all::<Point>(cx);
8037 let max_point = display_map.buffer_snapshot.max_point();
8038 for selection in &mut selections {
8039 let rows = selection.spanned_rows(true, &display_map);
8040 selection.start = Point::new(rows.start.0, 0);
8041 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8042 selection.reversed = false;
8043 }
8044 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8045 s.select(selections);
8046 });
8047 }
8048
8049 pub fn split_selection_into_lines(
8050 &mut self,
8051 _: &SplitSelectionIntoLines,
8052 cx: &mut ViewContext<Self>,
8053 ) {
8054 let mut to_unfold = Vec::new();
8055 let mut new_selection_ranges = Vec::new();
8056 {
8057 let selections = self.selections.all::<Point>(cx);
8058 let buffer = self.buffer.read(cx).read(cx);
8059 for selection in selections {
8060 for row in selection.start.row..selection.end.row {
8061 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8062 new_selection_ranges.push(cursor..cursor);
8063 }
8064 new_selection_ranges.push(selection.end..selection.end);
8065 to_unfold.push(selection.start..selection.end);
8066 }
8067 }
8068 self.unfold_ranges(to_unfold, true, true, cx);
8069 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8070 s.select_ranges(new_selection_ranges);
8071 });
8072 }
8073
8074 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8075 self.add_selection(true, cx);
8076 }
8077
8078 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8079 self.add_selection(false, cx);
8080 }
8081
8082 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8083 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8084 let mut selections = self.selections.all::<Point>(cx);
8085 let text_layout_details = self.text_layout_details(cx);
8086 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8087 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8088 let range = oldest_selection.display_range(&display_map).sorted();
8089
8090 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8091 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8092 let positions = start_x.min(end_x)..start_x.max(end_x);
8093
8094 selections.clear();
8095 let mut stack = Vec::new();
8096 for row in range.start.row().0..=range.end.row().0 {
8097 if let Some(selection) = self.selections.build_columnar_selection(
8098 &display_map,
8099 DisplayRow(row),
8100 &positions,
8101 oldest_selection.reversed,
8102 &text_layout_details,
8103 ) {
8104 stack.push(selection.id);
8105 selections.push(selection);
8106 }
8107 }
8108
8109 if above {
8110 stack.reverse();
8111 }
8112
8113 AddSelectionsState { above, stack }
8114 });
8115
8116 let last_added_selection = *state.stack.last().unwrap();
8117 let mut new_selections = Vec::new();
8118 if above == state.above {
8119 let end_row = if above {
8120 DisplayRow(0)
8121 } else {
8122 display_map.max_point().row()
8123 };
8124
8125 'outer: for selection in selections {
8126 if selection.id == last_added_selection {
8127 let range = selection.display_range(&display_map).sorted();
8128 debug_assert_eq!(range.start.row(), range.end.row());
8129 let mut row = range.start.row();
8130 let positions =
8131 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8132 px(start)..px(end)
8133 } else {
8134 let start_x =
8135 display_map.x_for_display_point(range.start, &text_layout_details);
8136 let end_x =
8137 display_map.x_for_display_point(range.end, &text_layout_details);
8138 start_x.min(end_x)..start_x.max(end_x)
8139 };
8140
8141 while row != end_row {
8142 if above {
8143 row.0 -= 1;
8144 } else {
8145 row.0 += 1;
8146 }
8147
8148 if let Some(new_selection) = self.selections.build_columnar_selection(
8149 &display_map,
8150 row,
8151 &positions,
8152 selection.reversed,
8153 &text_layout_details,
8154 ) {
8155 state.stack.push(new_selection.id);
8156 if above {
8157 new_selections.push(new_selection);
8158 new_selections.push(selection);
8159 } else {
8160 new_selections.push(selection);
8161 new_selections.push(new_selection);
8162 }
8163
8164 continue 'outer;
8165 }
8166 }
8167 }
8168
8169 new_selections.push(selection);
8170 }
8171 } else {
8172 new_selections = selections;
8173 new_selections.retain(|s| s.id != last_added_selection);
8174 state.stack.pop();
8175 }
8176
8177 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8178 s.select(new_selections);
8179 });
8180 if state.stack.len() > 1 {
8181 self.add_selections_state = Some(state);
8182 }
8183 }
8184
8185 pub fn select_next_match_internal(
8186 &mut self,
8187 display_map: &DisplaySnapshot,
8188 replace_newest: bool,
8189 autoscroll: Option<Autoscroll>,
8190 cx: &mut ViewContext<Self>,
8191 ) -> Result<()> {
8192 fn select_next_match_ranges(
8193 this: &mut Editor,
8194 range: Range<usize>,
8195 replace_newest: bool,
8196 auto_scroll: Option<Autoscroll>,
8197 cx: &mut ViewContext<Editor>,
8198 ) {
8199 this.unfold_ranges([range.clone()], false, true, cx);
8200 this.change_selections(auto_scroll, cx, |s| {
8201 if replace_newest {
8202 s.delete(s.newest_anchor().id);
8203 }
8204 s.insert_range(range.clone());
8205 });
8206 }
8207
8208 let buffer = &display_map.buffer_snapshot;
8209 let mut selections = self.selections.all::<usize>(cx);
8210 if let Some(mut select_next_state) = self.select_next_state.take() {
8211 let query = &select_next_state.query;
8212 if !select_next_state.done {
8213 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8214 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8215 let mut next_selected_range = None;
8216
8217 let bytes_after_last_selection =
8218 buffer.bytes_in_range(last_selection.end..buffer.len());
8219 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8220 let query_matches = query
8221 .stream_find_iter(bytes_after_last_selection)
8222 .map(|result| (last_selection.end, result))
8223 .chain(
8224 query
8225 .stream_find_iter(bytes_before_first_selection)
8226 .map(|result| (0, result)),
8227 );
8228
8229 for (start_offset, query_match) in query_matches {
8230 let query_match = query_match.unwrap(); // can only fail due to I/O
8231 let offset_range =
8232 start_offset + query_match.start()..start_offset + query_match.end();
8233 let display_range = offset_range.start.to_display_point(display_map)
8234 ..offset_range.end.to_display_point(display_map);
8235
8236 if !select_next_state.wordwise
8237 || (!movement::is_inside_word(display_map, display_range.start)
8238 && !movement::is_inside_word(display_map, display_range.end))
8239 {
8240 // TODO: This is n^2, because we might check all the selections
8241 if !selections
8242 .iter()
8243 .any(|selection| selection.range().overlaps(&offset_range))
8244 {
8245 next_selected_range = Some(offset_range);
8246 break;
8247 }
8248 }
8249 }
8250
8251 if let Some(next_selected_range) = next_selected_range {
8252 select_next_match_ranges(
8253 self,
8254 next_selected_range,
8255 replace_newest,
8256 autoscroll,
8257 cx,
8258 );
8259 } else {
8260 select_next_state.done = true;
8261 }
8262 }
8263
8264 self.select_next_state = Some(select_next_state);
8265 } else {
8266 let mut only_carets = true;
8267 let mut same_text_selected = true;
8268 let mut selected_text = None;
8269
8270 let mut selections_iter = selections.iter().peekable();
8271 while let Some(selection) = selections_iter.next() {
8272 if selection.start != selection.end {
8273 only_carets = false;
8274 }
8275
8276 if same_text_selected {
8277 if selected_text.is_none() {
8278 selected_text =
8279 Some(buffer.text_for_range(selection.range()).collect::<String>());
8280 }
8281
8282 if let Some(next_selection) = selections_iter.peek() {
8283 if next_selection.range().len() == selection.range().len() {
8284 let next_selected_text = buffer
8285 .text_for_range(next_selection.range())
8286 .collect::<String>();
8287 if Some(next_selected_text) != selected_text {
8288 same_text_selected = false;
8289 selected_text = None;
8290 }
8291 } else {
8292 same_text_selected = false;
8293 selected_text = None;
8294 }
8295 }
8296 }
8297 }
8298
8299 if only_carets {
8300 for selection in &mut selections {
8301 let word_range = movement::surrounding_word(
8302 display_map,
8303 selection.start.to_display_point(display_map),
8304 );
8305 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8306 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8307 selection.goal = SelectionGoal::None;
8308 selection.reversed = false;
8309 select_next_match_ranges(
8310 self,
8311 selection.start..selection.end,
8312 replace_newest,
8313 autoscroll,
8314 cx,
8315 );
8316 }
8317
8318 if selections.len() == 1 {
8319 let selection = selections
8320 .last()
8321 .expect("ensured that there's only one selection");
8322 let query = buffer
8323 .text_for_range(selection.start..selection.end)
8324 .collect::<String>();
8325 let is_empty = query.is_empty();
8326 let select_state = SelectNextState {
8327 query: AhoCorasick::new(&[query])?,
8328 wordwise: true,
8329 done: is_empty,
8330 };
8331 self.select_next_state = Some(select_state);
8332 } else {
8333 self.select_next_state = None;
8334 }
8335 } else if let Some(selected_text) = selected_text {
8336 self.select_next_state = Some(SelectNextState {
8337 query: AhoCorasick::new(&[selected_text])?,
8338 wordwise: false,
8339 done: false,
8340 });
8341 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8342 }
8343 }
8344 Ok(())
8345 }
8346
8347 pub fn select_all_matches(
8348 &mut self,
8349 _action: &SelectAllMatches,
8350 cx: &mut ViewContext<Self>,
8351 ) -> Result<()> {
8352 self.push_to_selection_history();
8353 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8354
8355 self.select_next_match_internal(&display_map, false, None, cx)?;
8356 let Some(select_next_state) = self.select_next_state.as_mut() else {
8357 return Ok(());
8358 };
8359 if select_next_state.done {
8360 return Ok(());
8361 }
8362
8363 let mut new_selections = self.selections.all::<usize>(cx);
8364
8365 let buffer = &display_map.buffer_snapshot;
8366 let query_matches = select_next_state
8367 .query
8368 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8369
8370 for query_match in query_matches {
8371 let query_match = query_match.unwrap(); // can only fail due to I/O
8372 let offset_range = query_match.start()..query_match.end();
8373 let display_range = offset_range.start.to_display_point(&display_map)
8374 ..offset_range.end.to_display_point(&display_map);
8375
8376 if !select_next_state.wordwise
8377 || (!movement::is_inside_word(&display_map, display_range.start)
8378 && !movement::is_inside_word(&display_map, display_range.end))
8379 {
8380 self.selections.change_with(cx, |selections| {
8381 new_selections.push(Selection {
8382 id: selections.new_selection_id(),
8383 start: offset_range.start,
8384 end: offset_range.end,
8385 reversed: false,
8386 goal: SelectionGoal::None,
8387 });
8388 });
8389 }
8390 }
8391
8392 new_selections.sort_by_key(|selection| selection.start);
8393 let mut ix = 0;
8394 while ix + 1 < new_selections.len() {
8395 let current_selection = &new_selections[ix];
8396 let next_selection = &new_selections[ix + 1];
8397 if current_selection.range().overlaps(&next_selection.range()) {
8398 if current_selection.id < next_selection.id {
8399 new_selections.remove(ix + 1);
8400 } else {
8401 new_selections.remove(ix);
8402 }
8403 } else {
8404 ix += 1;
8405 }
8406 }
8407
8408 select_next_state.done = true;
8409 self.unfold_ranges(
8410 new_selections.iter().map(|selection| selection.range()),
8411 false,
8412 false,
8413 cx,
8414 );
8415 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8416 selections.select(new_selections)
8417 });
8418
8419 Ok(())
8420 }
8421
8422 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8423 self.push_to_selection_history();
8424 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8425 self.select_next_match_internal(
8426 &display_map,
8427 action.replace_newest,
8428 Some(Autoscroll::newest()),
8429 cx,
8430 )?;
8431 Ok(())
8432 }
8433
8434 pub fn select_previous(
8435 &mut self,
8436 action: &SelectPrevious,
8437 cx: &mut ViewContext<Self>,
8438 ) -> Result<()> {
8439 self.push_to_selection_history();
8440 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8441 let buffer = &display_map.buffer_snapshot;
8442 let mut selections = self.selections.all::<usize>(cx);
8443 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8444 let query = &select_prev_state.query;
8445 if !select_prev_state.done {
8446 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8447 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8448 let mut next_selected_range = None;
8449 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8450 let bytes_before_last_selection =
8451 buffer.reversed_bytes_in_range(0..last_selection.start);
8452 let bytes_after_first_selection =
8453 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8454 let query_matches = query
8455 .stream_find_iter(bytes_before_last_selection)
8456 .map(|result| (last_selection.start, result))
8457 .chain(
8458 query
8459 .stream_find_iter(bytes_after_first_selection)
8460 .map(|result| (buffer.len(), result)),
8461 );
8462 for (end_offset, query_match) in query_matches {
8463 let query_match = query_match.unwrap(); // can only fail due to I/O
8464 let offset_range =
8465 end_offset - query_match.end()..end_offset - query_match.start();
8466 let display_range = offset_range.start.to_display_point(&display_map)
8467 ..offset_range.end.to_display_point(&display_map);
8468
8469 if !select_prev_state.wordwise
8470 || (!movement::is_inside_word(&display_map, display_range.start)
8471 && !movement::is_inside_word(&display_map, display_range.end))
8472 {
8473 next_selected_range = Some(offset_range);
8474 break;
8475 }
8476 }
8477
8478 if let Some(next_selected_range) = next_selected_range {
8479 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
8480 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8481 if action.replace_newest {
8482 s.delete(s.newest_anchor().id);
8483 }
8484 s.insert_range(next_selected_range);
8485 });
8486 } else {
8487 select_prev_state.done = true;
8488 }
8489 }
8490
8491 self.select_prev_state = Some(select_prev_state);
8492 } else {
8493 let mut only_carets = true;
8494 let mut same_text_selected = true;
8495 let mut selected_text = None;
8496
8497 let mut selections_iter = selections.iter().peekable();
8498 while let Some(selection) = selections_iter.next() {
8499 if selection.start != selection.end {
8500 only_carets = false;
8501 }
8502
8503 if same_text_selected {
8504 if selected_text.is_none() {
8505 selected_text =
8506 Some(buffer.text_for_range(selection.range()).collect::<String>());
8507 }
8508
8509 if let Some(next_selection) = selections_iter.peek() {
8510 if next_selection.range().len() == selection.range().len() {
8511 let next_selected_text = buffer
8512 .text_for_range(next_selection.range())
8513 .collect::<String>();
8514 if Some(next_selected_text) != selected_text {
8515 same_text_selected = false;
8516 selected_text = None;
8517 }
8518 } else {
8519 same_text_selected = false;
8520 selected_text = None;
8521 }
8522 }
8523 }
8524 }
8525
8526 if only_carets {
8527 for selection in &mut selections {
8528 let word_range = movement::surrounding_word(
8529 &display_map,
8530 selection.start.to_display_point(&display_map),
8531 );
8532 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8533 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8534 selection.goal = SelectionGoal::None;
8535 selection.reversed = false;
8536 }
8537 if selections.len() == 1 {
8538 let selection = selections
8539 .last()
8540 .expect("ensured that there's only one selection");
8541 let query = buffer
8542 .text_for_range(selection.start..selection.end)
8543 .collect::<String>();
8544 let is_empty = query.is_empty();
8545 let select_state = SelectNextState {
8546 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8547 wordwise: true,
8548 done: is_empty,
8549 };
8550 self.select_prev_state = Some(select_state);
8551 } else {
8552 self.select_prev_state = None;
8553 }
8554
8555 self.unfold_ranges(
8556 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8557 false,
8558 true,
8559 cx,
8560 );
8561 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8562 s.select(selections);
8563 });
8564 } else if let Some(selected_text) = selected_text {
8565 self.select_prev_state = Some(SelectNextState {
8566 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8567 wordwise: false,
8568 done: false,
8569 });
8570 self.select_previous(action, cx)?;
8571 }
8572 }
8573 Ok(())
8574 }
8575
8576 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8577 let text_layout_details = &self.text_layout_details(cx);
8578 self.transact(cx, |this, cx| {
8579 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8580 let mut edits = Vec::new();
8581 let mut selection_edit_ranges = Vec::new();
8582 let mut last_toggled_row = None;
8583 let snapshot = this.buffer.read(cx).read(cx);
8584 let empty_str: Arc<str> = Arc::default();
8585 let mut suffixes_inserted = Vec::new();
8586
8587 fn comment_prefix_range(
8588 snapshot: &MultiBufferSnapshot,
8589 row: MultiBufferRow,
8590 comment_prefix: &str,
8591 comment_prefix_whitespace: &str,
8592 ) -> Range<Point> {
8593 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
8594
8595 let mut line_bytes = snapshot
8596 .bytes_in_range(start..snapshot.max_point())
8597 .flatten()
8598 .copied();
8599
8600 // If this line currently begins with the line comment prefix, then record
8601 // the range containing the prefix.
8602 if line_bytes
8603 .by_ref()
8604 .take(comment_prefix.len())
8605 .eq(comment_prefix.bytes())
8606 {
8607 // Include any whitespace that matches the comment prefix.
8608 let matching_whitespace_len = line_bytes
8609 .zip(comment_prefix_whitespace.bytes())
8610 .take_while(|(a, b)| a == b)
8611 .count() as u32;
8612 let end = Point::new(
8613 start.row,
8614 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8615 );
8616 start..end
8617 } else {
8618 start..start
8619 }
8620 }
8621
8622 fn comment_suffix_range(
8623 snapshot: &MultiBufferSnapshot,
8624 row: MultiBufferRow,
8625 comment_suffix: &str,
8626 comment_suffix_has_leading_space: bool,
8627 ) -> Range<Point> {
8628 let end = Point::new(row.0, snapshot.line_len(row));
8629 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8630
8631 let mut line_end_bytes = snapshot
8632 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8633 .flatten()
8634 .copied();
8635
8636 let leading_space_len = if suffix_start_column > 0
8637 && line_end_bytes.next() == Some(b' ')
8638 && comment_suffix_has_leading_space
8639 {
8640 1
8641 } else {
8642 0
8643 };
8644
8645 // If this line currently begins with the line comment prefix, then record
8646 // the range containing the prefix.
8647 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8648 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8649 start..end
8650 } else {
8651 end..end
8652 }
8653 }
8654
8655 // TODO: Handle selections that cross excerpts
8656 for selection in &mut selections {
8657 let start_column = snapshot
8658 .indent_size_for_line(MultiBufferRow(selection.start.row))
8659 .len;
8660 let language = if let Some(language) =
8661 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8662 {
8663 language
8664 } else {
8665 continue;
8666 };
8667
8668 selection_edit_ranges.clear();
8669
8670 // If multiple selections contain a given row, avoid processing that
8671 // row more than once.
8672 let mut start_row = MultiBufferRow(selection.start.row);
8673 if last_toggled_row == Some(start_row) {
8674 start_row = start_row.next_row();
8675 }
8676 let end_row =
8677 if selection.end.row > selection.start.row && selection.end.column == 0 {
8678 MultiBufferRow(selection.end.row - 1)
8679 } else {
8680 MultiBufferRow(selection.end.row)
8681 };
8682 last_toggled_row = Some(end_row);
8683
8684 if start_row > end_row {
8685 continue;
8686 }
8687
8688 // If the language has line comments, toggle those.
8689 let full_comment_prefixes = language.line_comment_prefixes();
8690 if !full_comment_prefixes.is_empty() {
8691 let first_prefix = full_comment_prefixes
8692 .first()
8693 .expect("prefixes is non-empty");
8694 let prefix_trimmed_lengths = full_comment_prefixes
8695 .iter()
8696 .map(|p| p.trim_end_matches(' ').len())
8697 .collect::<SmallVec<[usize; 4]>>();
8698
8699 let mut all_selection_lines_are_comments = true;
8700
8701 for row in start_row.0..=end_row.0 {
8702 let row = MultiBufferRow(row);
8703 if start_row < end_row && snapshot.is_line_blank(row) {
8704 continue;
8705 }
8706
8707 let prefix_range = full_comment_prefixes
8708 .iter()
8709 .zip(prefix_trimmed_lengths.iter().copied())
8710 .map(|(prefix, trimmed_prefix_len)| {
8711 comment_prefix_range(
8712 snapshot.deref(),
8713 row,
8714 &prefix[..trimmed_prefix_len],
8715 &prefix[trimmed_prefix_len..],
8716 )
8717 })
8718 .max_by_key(|range| range.end.column - range.start.column)
8719 .expect("prefixes is non-empty");
8720
8721 if prefix_range.is_empty() {
8722 all_selection_lines_are_comments = false;
8723 }
8724
8725 selection_edit_ranges.push(prefix_range);
8726 }
8727
8728 if all_selection_lines_are_comments {
8729 edits.extend(
8730 selection_edit_ranges
8731 .iter()
8732 .cloned()
8733 .map(|range| (range, empty_str.clone())),
8734 );
8735 } else {
8736 let min_column = selection_edit_ranges
8737 .iter()
8738 .map(|range| range.start.column)
8739 .min()
8740 .unwrap_or(0);
8741 edits.extend(selection_edit_ranges.iter().map(|range| {
8742 let position = Point::new(range.start.row, min_column);
8743 (position..position, first_prefix.clone())
8744 }));
8745 }
8746 } else if let Some((full_comment_prefix, comment_suffix)) =
8747 language.block_comment_delimiters()
8748 {
8749 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8750 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8751 let prefix_range = comment_prefix_range(
8752 snapshot.deref(),
8753 start_row,
8754 comment_prefix,
8755 comment_prefix_whitespace,
8756 );
8757 let suffix_range = comment_suffix_range(
8758 snapshot.deref(),
8759 end_row,
8760 comment_suffix.trim_start_matches(' '),
8761 comment_suffix.starts_with(' '),
8762 );
8763
8764 if prefix_range.is_empty() || suffix_range.is_empty() {
8765 edits.push((
8766 prefix_range.start..prefix_range.start,
8767 full_comment_prefix.clone(),
8768 ));
8769 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8770 suffixes_inserted.push((end_row, comment_suffix.len()));
8771 } else {
8772 edits.push((prefix_range, empty_str.clone()));
8773 edits.push((suffix_range, empty_str.clone()));
8774 }
8775 } else {
8776 continue;
8777 }
8778 }
8779
8780 drop(snapshot);
8781 this.buffer.update(cx, |buffer, cx| {
8782 buffer.edit(edits, None, cx);
8783 });
8784
8785 // Adjust selections so that they end before any comment suffixes that
8786 // were inserted.
8787 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8788 let mut selections = this.selections.all::<Point>(cx);
8789 let snapshot = this.buffer.read(cx).read(cx);
8790 for selection in &mut selections {
8791 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8792 match row.cmp(&MultiBufferRow(selection.end.row)) {
8793 Ordering::Less => {
8794 suffixes_inserted.next();
8795 continue;
8796 }
8797 Ordering::Greater => break,
8798 Ordering::Equal => {
8799 if selection.end.column == snapshot.line_len(row) {
8800 if selection.is_empty() {
8801 selection.start.column -= suffix_len as u32;
8802 }
8803 selection.end.column -= suffix_len as u32;
8804 }
8805 break;
8806 }
8807 }
8808 }
8809 }
8810
8811 drop(snapshot);
8812 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8813
8814 let selections = this.selections.all::<Point>(cx);
8815 let selections_on_single_row = selections.windows(2).all(|selections| {
8816 selections[0].start.row == selections[1].start.row
8817 && selections[0].end.row == selections[1].end.row
8818 && selections[0].start.row == selections[0].end.row
8819 });
8820 let selections_selecting = selections
8821 .iter()
8822 .any(|selection| selection.start != selection.end);
8823 let advance_downwards = action.advance_downwards
8824 && selections_on_single_row
8825 && !selections_selecting
8826 && !matches!(this.mode, EditorMode::SingleLine { .. });
8827
8828 if advance_downwards {
8829 let snapshot = this.buffer.read(cx).snapshot(cx);
8830
8831 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8832 s.move_cursors_with(|display_snapshot, display_point, _| {
8833 let mut point = display_point.to_point(display_snapshot);
8834 point.row += 1;
8835 point = snapshot.clip_point(point, Bias::Left);
8836 let display_point = point.to_display_point(display_snapshot);
8837 let goal = SelectionGoal::HorizontalPosition(
8838 display_snapshot
8839 .x_for_display_point(display_point, text_layout_details)
8840 .into(),
8841 );
8842 (display_point, goal)
8843 })
8844 });
8845 }
8846 });
8847 }
8848
8849 pub fn select_enclosing_symbol(
8850 &mut self,
8851 _: &SelectEnclosingSymbol,
8852 cx: &mut ViewContext<Self>,
8853 ) {
8854 let buffer = self.buffer.read(cx).snapshot(cx);
8855 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8856
8857 fn update_selection(
8858 selection: &Selection<usize>,
8859 buffer_snap: &MultiBufferSnapshot,
8860 ) -> Option<Selection<usize>> {
8861 let cursor = selection.head();
8862 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8863 for symbol in symbols.iter().rev() {
8864 let start = symbol.range.start.to_offset(buffer_snap);
8865 let end = symbol.range.end.to_offset(buffer_snap);
8866 let new_range = start..end;
8867 if start < selection.start || end > selection.end {
8868 return Some(Selection {
8869 id: selection.id,
8870 start: new_range.start,
8871 end: new_range.end,
8872 goal: SelectionGoal::None,
8873 reversed: selection.reversed,
8874 });
8875 }
8876 }
8877 None
8878 }
8879
8880 let mut selected_larger_symbol = false;
8881 let new_selections = old_selections
8882 .iter()
8883 .map(|selection| match update_selection(selection, &buffer) {
8884 Some(new_selection) => {
8885 if new_selection.range() != selection.range() {
8886 selected_larger_symbol = true;
8887 }
8888 new_selection
8889 }
8890 None => selection.clone(),
8891 })
8892 .collect::<Vec<_>>();
8893
8894 if selected_larger_symbol {
8895 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8896 s.select(new_selections);
8897 });
8898 }
8899 }
8900
8901 pub fn select_larger_syntax_node(
8902 &mut self,
8903 _: &SelectLargerSyntaxNode,
8904 cx: &mut ViewContext<Self>,
8905 ) {
8906 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8907 let buffer = self.buffer.read(cx).snapshot(cx);
8908 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8909
8910 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8911 let mut selected_larger_node = false;
8912 let new_selections = old_selections
8913 .iter()
8914 .map(|selection| {
8915 let old_range = selection.start..selection.end;
8916 let mut new_range = old_range.clone();
8917 while let Some(containing_range) =
8918 buffer.range_for_syntax_ancestor(new_range.clone())
8919 {
8920 new_range = containing_range;
8921 if !display_map.intersects_fold(new_range.start)
8922 && !display_map.intersects_fold(new_range.end)
8923 {
8924 break;
8925 }
8926 }
8927
8928 selected_larger_node |= new_range != old_range;
8929 Selection {
8930 id: selection.id,
8931 start: new_range.start,
8932 end: new_range.end,
8933 goal: SelectionGoal::None,
8934 reversed: selection.reversed,
8935 }
8936 })
8937 .collect::<Vec<_>>();
8938
8939 if selected_larger_node {
8940 stack.push(old_selections);
8941 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8942 s.select(new_selections);
8943 });
8944 }
8945 self.select_larger_syntax_node_stack = stack;
8946 }
8947
8948 pub fn select_smaller_syntax_node(
8949 &mut self,
8950 _: &SelectSmallerSyntaxNode,
8951 cx: &mut ViewContext<Self>,
8952 ) {
8953 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8954 if let Some(selections) = stack.pop() {
8955 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8956 s.select(selections.to_vec());
8957 });
8958 }
8959 self.select_larger_syntax_node_stack = stack;
8960 }
8961
8962 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8963 if !EditorSettings::get_global(cx).gutter.runnables {
8964 self.clear_tasks();
8965 return Task::ready(());
8966 }
8967 let project = self.project.clone();
8968 cx.spawn(|this, mut cx| async move {
8969 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8970 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8971 }) else {
8972 return;
8973 };
8974
8975 let Some(project) = project else {
8976 return;
8977 };
8978
8979 let hide_runnables = project
8980 .update(&mut cx, |project, cx| {
8981 // Do not display any test indicators in non-dev server remote projects.
8982 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8983 })
8984 .unwrap_or(true);
8985 if hide_runnables {
8986 return;
8987 }
8988 let new_rows =
8989 cx.background_executor()
8990 .spawn({
8991 let snapshot = display_snapshot.clone();
8992 async move {
8993 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8994 }
8995 })
8996 .await;
8997 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8998
8999 this.update(&mut cx, |this, _| {
9000 this.clear_tasks();
9001 for (key, value) in rows {
9002 this.insert_tasks(key, value);
9003 }
9004 })
9005 .ok();
9006 })
9007 }
9008 fn fetch_runnable_ranges(
9009 snapshot: &DisplaySnapshot,
9010 range: Range<Anchor>,
9011 ) -> Vec<language::RunnableRange> {
9012 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9013 }
9014
9015 fn runnable_rows(
9016 project: Model<Project>,
9017 snapshot: DisplaySnapshot,
9018 runnable_ranges: Vec<RunnableRange>,
9019 mut cx: AsyncWindowContext,
9020 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9021 runnable_ranges
9022 .into_iter()
9023 .filter_map(|mut runnable| {
9024 let tasks = cx
9025 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9026 .ok()?;
9027 if tasks.is_empty() {
9028 return None;
9029 }
9030
9031 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9032
9033 let row = snapshot
9034 .buffer_snapshot
9035 .buffer_line_for_row(MultiBufferRow(point.row))?
9036 .1
9037 .start
9038 .row;
9039
9040 let context_range =
9041 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9042 Some((
9043 (runnable.buffer_id, row),
9044 RunnableTasks {
9045 templates: tasks,
9046 offset: MultiBufferOffset(runnable.run_range.start),
9047 context_range,
9048 column: point.column,
9049 extra_variables: runnable.extra_captures,
9050 },
9051 ))
9052 })
9053 .collect()
9054 }
9055
9056 fn templates_with_tags(
9057 project: &Model<Project>,
9058 runnable: &mut Runnable,
9059 cx: &WindowContext<'_>,
9060 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9061 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9062 let (worktree_id, file) = project
9063 .buffer_for_id(runnable.buffer, cx)
9064 .and_then(|buffer| buffer.read(cx).file())
9065 .map(|file| (file.worktree_id(cx), file.clone()))
9066 .unzip();
9067
9068 (project.task_inventory().clone(), worktree_id, file)
9069 });
9070
9071 let inventory = inventory.read(cx);
9072 let tags = mem::take(&mut runnable.tags);
9073 let mut tags: Vec<_> = tags
9074 .into_iter()
9075 .flat_map(|tag| {
9076 let tag = tag.0.clone();
9077 inventory
9078 .list_tasks(
9079 file.clone(),
9080 Some(runnable.language.clone()),
9081 worktree_id,
9082 cx,
9083 )
9084 .into_iter()
9085 .filter(move |(_, template)| {
9086 template.tags.iter().any(|source_tag| source_tag == &tag)
9087 })
9088 })
9089 .sorted_by_key(|(kind, _)| kind.to_owned())
9090 .collect();
9091 if let Some((leading_tag_source, _)) = tags.first() {
9092 // Strongest source wins; if we have worktree tag binding, prefer that to
9093 // global and language bindings;
9094 // if we have a global binding, prefer that to language binding.
9095 let first_mismatch = tags
9096 .iter()
9097 .position(|(tag_source, _)| tag_source != leading_tag_source);
9098 if let Some(index) = first_mismatch {
9099 tags.truncate(index);
9100 }
9101 }
9102
9103 tags
9104 }
9105
9106 pub fn move_to_enclosing_bracket(
9107 &mut self,
9108 _: &MoveToEnclosingBracket,
9109 cx: &mut ViewContext<Self>,
9110 ) {
9111 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9112 s.move_offsets_with(|snapshot, selection| {
9113 let Some(enclosing_bracket_ranges) =
9114 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9115 else {
9116 return;
9117 };
9118
9119 let mut best_length = usize::MAX;
9120 let mut best_inside = false;
9121 let mut best_in_bracket_range = false;
9122 let mut best_destination = None;
9123 for (open, close) in enclosing_bracket_ranges {
9124 let close = close.to_inclusive();
9125 let length = close.end() - open.start;
9126 let inside = selection.start >= open.end && selection.end <= *close.start();
9127 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9128 || close.contains(&selection.head());
9129
9130 // If best is next to a bracket and current isn't, skip
9131 if !in_bracket_range && best_in_bracket_range {
9132 continue;
9133 }
9134
9135 // Prefer smaller lengths unless best is inside and current isn't
9136 if length > best_length && (best_inside || !inside) {
9137 continue;
9138 }
9139
9140 best_length = length;
9141 best_inside = inside;
9142 best_in_bracket_range = in_bracket_range;
9143 best_destination = Some(
9144 if close.contains(&selection.start) && close.contains(&selection.end) {
9145 if inside {
9146 open.end
9147 } else {
9148 open.start
9149 }
9150 } else if inside {
9151 *close.start()
9152 } else {
9153 *close.end()
9154 },
9155 );
9156 }
9157
9158 if let Some(destination) = best_destination {
9159 selection.collapse_to(destination, SelectionGoal::None);
9160 }
9161 })
9162 });
9163 }
9164
9165 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9166 self.end_selection(cx);
9167 self.selection_history.mode = SelectionHistoryMode::Undoing;
9168 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9169 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9170 self.select_next_state = entry.select_next_state;
9171 self.select_prev_state = entry.select_prev_state;
9172 self.add_selections_state = entry.add_selections_state;
9173 self.request_autoscroll(Autoscroll::newest(), cx);
9174 }
9175 self.selection_history.mode = SelectionHistoryMode::Normal;
9176 }
9177
9178 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9179 self.end_selection(cx);
9180 self.selection_history.mode = SelectionHistoryMode::Redoing;
9181 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9182 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9183 self.select_next_state = entry.select_next_state;
9184 self.select_prev_state = entry.select_prev_state;
9185 self.add_selections_state = entry.add_selections_state;
9186 self.request_autoscroll(Autoscroll::newest(), cx);
9187 }
9188 self.selection_history.mode = SelectionHistoryMode::Normal;
9189 }
9190
9191 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9192 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9193 }
9194
9195 pub fn expand_excerpts_down(
9196 &mut self,
9197 action: &ExpandExcerptsDown,
9198 cx: &mut ViewContext<Self>,
9199 ) {
9200 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9201 }
9202
9203 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9204 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9205 }
9206
9207 pub fn expand_excerpts_for_direction(
9208 &mut self,
9209 lines: u32,
9210 direction: ExpandExcerptDirection,
9211 cx: &mut ViewContext<Self>,
9212 ) {
9213 let selections = self.selections.disjoint_anchors();
9214
9215 let lines = if lines == 0 {
9216 EditorSettings::get_global(cx).expand_excerpt_lines
9217 } else {
9218 lines
9219 };
9220
9221 self.buffer.update(cx, |buffer, cx| {
9222 buffer.expand_excerpts(
9223 selections
9224 .iter()
9225 .map(|selection| selection.head().excerpt_id)
9226 .dedup(),
9227 lines,
9228 direction,
9229 cx,
9230 )
9231 })
9232 }
9233
9234 pub fn expand_excerpt(
9235 &mut self,
9236 excerpt: ExcerptId,
9237 direction: ExpandExcerptDirection,
9238 cx: &mut ViewContext<Self>,
9239 ) {
9240 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9241 self.buffer.update(cx, |buffer, cx| {
9242 buffer.expand_excerpts([excerpt], lines, direction, cx)
9243 })
9244 }
9245
9246 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9247 self.go_to_diagnostic_impl(Direction::Next, cx)
9248 }
9249
9250 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9251 self.go_to_diagnostic_impl(Direction::Prev, cx)
9252 }
9253
9254 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9255 let buffer = self.buffer.read(cx).snapshot(cx);
9256 let selection = self.selections.newest::<usize>(cx);
9257
9258 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9259 if direction == Direction::Next {
9260 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9261 let (group_id, jump_to) = popover.activation_info();
9262 if self.activate_diagnostics(group_id, cx) {
9263 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9264 let mut new_selection = s.newest_anchor().clone();
9265 new_selection.collapse_to(jump_to, SelectionGoal::None);
9266 s.select_anchors(vec![new_selection.clone()]);
9267 });
9268 }
9269 return;
9270 }
9271 }
9272
9273 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9274 active_diagnostics
9275 .primary_range
9276 .to_offset(&buffer)
9277 .to_inclusive()
9278 });
9279 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9280 if active_primary_range.contains(&selection.head()) {
9281 *active_primary_range.start()
9282 } else {
9283 selection.head()
9284 }
9285 } else {
9286 selection.head()
9287 };
9288 let snapshot = self.snapshot(cx);
9289 loop {
9290 let diagnostics = if direction == Direction::Prev {
9291 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9292 } else {
9293 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9294 }
9295 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9296 let group = diagnostics
9297 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9298 // be sorted in a stable way
9299 // skip until we are at current active diagnostic, if it exists
9300 .skip_while(|entry| {
9301 (match direction {
9302 Direction::Prev => entry.range.start >= search_start,
9303 Direction::Next => entry.range.start <= search_start,
9304 }) && self
9305 .active_diagnostics
9306 .as_ref()
9307 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9308 })
9309 .find_map(|entry| {
9310 if entry.diagnostic.is_primary
9311 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9312 && !entry.range.is_empty()
9313 // if we match with the active diagnostic, skip it
9314 && Some(entry.diagnostic.group_id)
9315 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9316 {
9317 Some((entry.range, entry.diagnostic.group_id))
9318 } else {
9319 None
9320 }
9321 });
9322
9323 if let Some((primary_range, group_id)) = group {
9324 if self.activate_diagnostics(group_id, cx) {
9325 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9326 s.select(vec![Selection {
9327 id: selection.id,
9328 start: primary_range.start,
9329 end: primary_range.start,
9330 reversed: false,
9331 goal: SelectionGoal::None,
9332 }]);
9333 });
9334 }
9335 break;
9336 } else {
9337 // Cycle around to the start of the buffer, potentially moving back to the start of
9338 // the currently active diagnostic.
9339 active_primary_range.take();
9340 if direction == Direction::Prev {
9341 if search_start == buffer.len() {
9342 break;
9343 } else {
9344 search_start = buffer.len();
9345 }
9346 } else if search_start == 0 {
9347 break;
9348 } else {
9349 search_start = 0;
9350 }
9351 }
9352 }
9353 }
9354
9355 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9356 let snapshot = self
9357 .display_map
9358 .update(cx, |display_map, cx| display_map.snapshot(cx));
9359 let selection = self.selections.newest::<Point>(cx);
9360 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9361 }
9362
9363 fn go_to_hunk_after_position(
9364 &mut self,
9365 snapshot: &DisplaySnapshot,
9366 position: Point,
9367 cx: &mut ViewContext<'_, Editor>,
9368 ) -> Option<MultiBufferDiffHunk> {
9369 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9370 snapshot,
9371 position,
9372 false,
9373 snapshot
9374 .buffer_snapshot
9375 .git_diff_hunks_in_range(MultiBufferRow(position.row + 1)..MultiBufferRow::MAX),
9376 cx,
9377 ) {
9378 return Some(hunk);
9379 }
9380
9381 let wrapped_point = Point::zero();
9382 self.go_to_next_hunk_in_direction(
9383 snapshot,
9384 wrapped_point,
9385 true,
9386 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9387 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9388 ),
9389 cx,
9390 )
9391 }
9392
9393 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9394 let snapshot = self
9395 .display_map
9396 .update(cx, |display_map, cx| display_map.snapshot(cx));
9397 let selection = self.selections.newest::<Point>(cx);
9398
9399 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9400 }
9401
9402 fn go_to_hunk_before_position(
9403 &mut self,
9404 snapshot: &DisplaySnapshot,
9405 position: Point,
9406 cx: &mut ViewContext<'_, Editor>,
9407 ) -> Option<MultiBufferDiffHunk> {
9408 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9409 snapshot,
9410 position,
9411 false,
9412 snapshot
9413 .buffer_snapshot
9414 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(position.row)),
9415 cx,
9416 ) {
9417 return Some(hunk);
9418 }
9419
9420 let wrapped_point = snapshot.buffer_snapshot.max_point();
9421 self.go_to_next_hunk_in_direction(
9422 snapshot,
9423 wrapped_point,
9424 true,
9425 snapshot
9426 .buffer_snapshot
9427 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(wrapped_point.row)),
9428 cx,
9429 )
9430 }
9431
9432 fn go_to_next_hunk_in_direction(
9433 &mut self,
9434 snapshot: &DisplaySnapshot,
9435 initial_point: Point,
9436 is_wrapped: bool,
9437 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9438 cx: &mut ViewContext<Editor>,
9439 ) -> Option<MultiBufferDiffHunk> {
9440 let display_point = initial_point.to_display_point(snapshot);
9441 let mut hunks = hunks
9442 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9443 .filter(|(display_hunk, _)| {
9444 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9445 })
9446 .dedup();
9447
9448 if let Some((display_hunk, hunk)) = hunks.next() {
9449 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9450 let row = display_hunk.start_display_row();
9451 let point = DisplayPoint::new(row, 0);
9452 s.select_display_ranges([point..point]);
9453 });
9454
9455 Some(hunk)
9456 } else {
9457 None
9458 }
9459 }
9460
9461 pub fn go_to_definition(
9462 &mut self,
9463 _: &GoToDefinition,
9464 cx: &mut ViewContext<Self>,
9465 ) -> Task<Result<Navigated>> {
9466 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9467 cx.spawn(|editor, mut cx| async move {
9468 if definition.await? == Navigated::Yes {
9469 return Ok(Navigated::Yes);
9470 }
9471 match editor.update(&mut cx, |editor, cx| {
9472 editor.find_all_references(&FindAllReferences, cx)
9473 })? {
9474 Some(references) => references.await,
9475 None => Ok(Navigated::No),
9476 }
9477 })
9478 }
9479
9480 pub fn go_to_declaration(
9481 &mut self,
9482 _: &GoToDeclaration,
9483 cx: &mut ViewContext<Self>,
9484 ) -> Task<Result<Navigated>> {
9485 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9486 }
9487
9488 pub fn go_to_declaration_split(
9489 &mut self,
9490 _: &GoToDeclaration,
9491 cx: &mut ViewContext<Self>,
9492 ) -> Task<Result<Navigated>> {
9493 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9494 }
9495
9496 pub fn go_to_implementation(
9497 &mut self,
9498 _: &GoToImplementation,
9499 cx: &mut ViewContext<Self>,
9500 ) -> Task<Result<Navigated>> {
9501 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9502 }
9503
9504 pub fn go_to_implementation_split(
9505 &mut self,
9506 _: &GoToImplementationSplit,
9507 cx: &mut ViewContext<Self>,
9508 ) -> Task<Result<Navigated>> {
9509 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9510 }
9511
9512 pub fn go_to_type_definition(
9513 &mut self,
9514 _: &GoToTypeDefinition,
9515 cx: &mut ViewContext<Self>,
9516 ) -> Task<Result<Navigated>> {
9517 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9518 }
9519
9520 pub fn go_to_definition_split(
9521 &mut self,
9522 _: &GoToDefinitionSplit,
9523 cx: &mut ViewContext<Self>,
9524 ) -> Task<Result<Navigated>> {
9525 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9526 }
9527
9528 pub fn go_to_type_definition_split(
9529 &mut self,
9530 _: &GoToTypeDefinitionSplit,
9531 cx: &mut ViewContext<Self>,
9532 ) -> Task<Result<Navigated>> {
9533 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9534 }
9535
9536 fn go_to_definition_of_kind(
9537 &mut self,
9538 kind: GotoDefinitionKind,
9539 split: bool,
9540 cx: &mut ViewContext<Self>,
9541 ) -> Task<Result<Navigated>> {
9542 let Some(workspace) = self.workspace() else {
9543 return Task::ready(Ok(Navigated::No));
9544 };
9545 let buffer = self.buffer.read(cx);
9546 let head = self.selections.newest::<usize>(cx).head();
9547 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9548 text_anchor
9549 } else {
9550 return Task::ready(Ok(Navigated::No));
9551 };
9552
9553 let project = workspace.read(cx).project().clone();
9554 let definitions = project.update(cx, |project, cx| match kind {
9555 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
9556 GotoDefinitionKind::Declaration => project.declaration(&buffer, head, cx),
9557 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
9558 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
9559 });
9560
9561 cx.spawn(|editor, mut cx| async move {
9562 let definitions = definitions.await?;
9563 let navigated = editor
9564 .update(&mut cx, |editor, cx| {
9565 editor.navigate_to_hover_links(
9566 Some(kind),
9567 definitions
9568 .into_iter()
9569 .filter(|location| {
9570 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9571 })
9572 .map(HoverLink::Text)
9573 .collect::<Vec<_>>(),
9574 split,
9575 cx,
9576 )
9577 })?
9578 .await?;
9579 anyhow::Ok(navigated)
9580 })
9581 }
9582
9583 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9584 let position = self.selections.newest_anchor().head();
9585 let Some((buffer, buffer_position)) =
9586 self.buffer.read(cx).text_anchor_for_position(position, cx)
9587 else {
9588 return;
9589 };
9590
9591 cx.spawn(|editor, mut cx| async move {
9592 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
9593 editor.update(&mut cx, |_, cx| {
9594 cx.open_url(&url);
9595 })
9596 } else {
9597 Ok(())
9598 }
9599 })
9600 .detach();
9601 }
9602
9603 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
9604 let Some(workspace) = self.workspace() else {
9605 return;
9606 };
9607
9608 let position = self.selections.newest_anchor().head();
9609
9610 let Some((buffer, buffer_position)) =
9611 self.buffer.read(cx).text_anchor_for_position(position, cx)
9612 else {
9613 return;
9614 };
9615
9616 let Some(project) = self.project.clone() else {
9617 return;
9618 };
9619
9620 cx.spawn(|_, mut cx| async move {
9621 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9622
9623 if let Some((_, path)) = result {
9624 workspace
9625 .update(&mut cx, |workspace, cx| {
9626 workspace.open_resolved_path(path, cx)
9627 })?
9628 .await?;
9629 }
9630 anyhow::Ok(())
9631 })
9632 .detach();
9633 }
9634
9635 pub(crate) fn navigate_to_hover_links(
9636 &mut self,
9637 kind: Option<GotoDefinitionKind>,
9638 mut definitions: Vec<HoverLink>,
9639 split: bool,
9640 cx: &mut ViewContext<Editor>,
9641 ) -> Task<Result<Navigated>> {
9642 // If there is one definition, just open it directly
9643 if definitions.len() == 1 {
9644 let definition = definitions.pop().unwrap();
9645
9646 enum TargetTaskResult {
9647 Location(Option<Location>),
9648 AlreadyNavigated,
9649 }
9650
9651 let target_task = match definition {
9652 HoverLink::Text(link) => {
9653 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9654 }
9655 HoverLink::InlayHint(lsp_location, server_id) => {
9656 let computation = self.compute_target_location(lsp_location, server_id, cx);
9657 cx.background_executor().spawn(async move {
9658 let location = computation.await?;
9659 Ok(TargetTaskResult::Location(location))
9660 })
9661 }
9662 HoverLink::Url(url) => {
9663 cx.open_url(&url);
9664 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9665 }
9666 HoverLink::File(path) => {
9667 if let Some(workspace) = self.workspace() {
9668 cx.spawn(|_, mut cx| async move {
9669 workspace
9670 .update(&mut cx, |workspace, cx| {
9671 workspace.open_resolved_path(path, cx)
9672 })?
9673 .await
9674 .map(|_| TargetTaskResult::AlreadyNavigated)
9675 })
9676 } else {
9677 Task::ready(Ok(TargetTaskResult::Location(None)))
9678 }
9679 }
9680 };
9681 cx.spawn(|editor, mut cx| async move {
9682 let target = match target_task.await.context("target resolution task")? {
9683 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9684 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9685 TargetTaskResult::Location(Some(target)) => target,
9686 };
9687
9688 editor.update(&mut cx, |editor, cx| {
9689 let Some(workspace) = editor.workspace() else {
9690 return Navigated::No;
9691 };
9692 let pane = workspace.read(cx).active_pane().clone();
9693
9694 let range = target.range.to_offset(target.buffer.read(cx));
9695 let range = editor.range_for_match(&range);
9696
9697 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9698 let buffer = target.buffer.read(cx);
9699 let range = check_multiline_range(buffer, range);
9700 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9701 s.select_ranges([range]);
9702 });
9703 } else {
9704 cx.window_context().defer(move |cx| {
9705 let target_editor: View<Self> =
9706 workspace.update(cx, |workspace, cx| {
9707 let pane = if split {
9708 workspace.adjacent_pane(cx)
9709 } else {
9710 workspace.active_pane().clone()
9711 };
9712
9713 workspace.open_project_item(
9714 pane,
9715 target.buffer.clone(),
9716 true,
9717 true,
9718 cx,
9719 )
9720 });
9721 target_editor.update(cx, |target_editor, cx| {
9722 // When selecting a definition in a different buffer, disable the nav history
9723 // to avoid creating a history entry at the previous cursor location.
9724 pane.update(cx, |pane, _| pane.disable_history());
9725 let buffer = target.buffer.read(cx);
9726 let range = check_multiline_range(buffer, range);
9727 target_editor.change_selections(
9728 Some(Autoscroll::focused()),
9729 cx,
9730 |s| {
9731 s.select_ranges([range]);
9732 },
9733 );
9734 pane.update(cx, |pane, _| pane.enable_history());
9735 });
9736 });
9737 }
9738 Navigated::Yes
9739 })
9740 })
9741 } else if !definitions.is_empty() {
9742 cx.spawn(|editor, mut cx| async move {
9743 let (title, location_tasks, workspace) = editor
9744 .update(&mut cx, |editor, cx| {
9745 let tab_kind = match kind {
9746 Some(GotoDefinitionKind::Implementation) => "Implementations",
9747 _ => "Definitions",
9748 };
9749 let title = definitions
9750 .iter()
9751 .find_map(|definition| match definition {
9752 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9753 let buffer = origin.buffer.read(cx);
9754 format!(
9755 "{} for {}",
9756 tab_kind,
9757 buffer
9758 .text_for_range(origin.range.clone())
9759 .collect::<String>()
9760 )
9761 }),
9762 HoverLink::InlayHint(_, _) => None,
9763 HoverLink::Url(_) => None,
9764 HoverLink::File(_) => None,
9765 })
9766 .unwrap_or(tab_kind.to_string());
9767 let location_tasks = definitions
9768 .into_iter()
9769 .map(|definition| match definition {
9770 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
9771 HoverLink::InlayHint(lsp_location, server_id) => {
9772 editor.compute_target_location(lsp_location, server_id, cx)
9773 }
9774 HoverLink::Url(_) => Task::ready(Ok(None)),
9775 HoverLink::File(_) => Task::ready(Ok(None)),
9776 })
9777 .collect::<Vec<_>>();
9778 (title, location_tasks, editor.workspace().clone())
9779 })
9780 .context("location tasks preparation")?;
9781
9782 let locations = future::join_all(location_tasks)
9783 .await
9784 .into_iter()
9785 .filter_map(|location| location.transpose())
9786 .collect::<Result<_>>()
9787 .context("location tasks")?;
9788
9789 let Some(workspace) = workspace else {
9790 return Ok(Navigated::No);
9791 };
9792 let opened = workspace
9793 .update(&mut cx, |workspace, cx| {
9794 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9795 })
9796 .ok();
9797
9798 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9799 })
9800 } else {
9801 Task::ready(Ok(Navigated::No))
9802 }
9803 }
9804
9805 fn compute_target_location(
9806 &self,
9807 lsp_location: lsp::Location,
9808 server_id: LanguageServerId,
9809 cx: &mut ViewContext<Editor>,
9810 ) -> Task<anyhow::Result<Option<Location>>> {
9811 let Some(project) = self.project.clone() else {
9812 return Task::Ready(Some(Ok(None)));
9813 };
9814
9815 cx.spawn(move |editor, mut cx| async move {
9816 let location_task = editor.update(&mut cx, |editor, cx| {
9817 project.update(cx, |project, cx| {
9818 let language_server_name =
9819 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
9820 project
9821 .language_server_for_buffer(buffer.read(cx), server_id, cx)
9822 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
9823 });
9824 language_server_name.map(|language_server_name| {
9825 project.open_local_buffer_via_lsp(
9826 lsp_location.uri.clone(),
9827 server_id,
9828 language_server_name,
9829 cx,
9830 )
9831 })
9832 })
9833 })?;
9834 let location = match location_task {
9835 Some(task) => Some({
9836 let target_buffer_handle = task.await.context("open local buffer")?;
9837 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9838 let target_start = target_buffer
9839 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9840 let target_end = target_buffer
9841 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9842 target_buffer.anchor_after(target_start)
9843 ..target_buffer.anchor_before(target_end)
9844 })?;
9845 Location {
9846 buffer: target_buffer_handle,
9847 range,
9848 }
9849 }),
9850 None => None,
9851 };
9852 Ok(location)
9853 })
9854 }
9855
9856 pub fn find_all_references(
9857 &mut self,
9858 _: &FindAllReferences,
9859 cx: &mut ViewContext<Self>,
9860 ) -> Option<Task<Result<Navigated>>> {
9861 let multi_buffer = self.buffer.read(cx);
9862 let selection = self.selections.newest::<usize>(cx);
9863 let head = selection.head();
9864
9865 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9866 let head_anchor = multi_buffer_snapshot.anchor_at(
9867 head,
9868 if head < selection.tail() {
9869 Bias::Right
9870 } else {
9871 Bias::Left
9872 },
9873 );
9874
9875 match self
9876 .find_all_references_task_sources
9877 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9878 {
9879 Ok(_) => {
9880 log::info!(
9881 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9882 );
9883 return None;
9884 }
9885 Err(i) => {
9886 self.find_all_references_task_sources.insert(i, head_anchor);
9887 }
9888 }
9889
9890 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9891 let workspace = self.workspace()?;
9892 let project = workspace.read(cx).project().clone();
9893 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9894 Some(cx.spawn(|editor, mut cx| async move {
9895 let _cleanup = defer({
9896 let mut cx = cx.clone();
9897 move || {
9898 let _ = editor.update(&mut cx, |editor, _| {
9899 if let Ok(i) =
9900 editor
9901 .find_all_references_task_sources
9902 .binary_search_by(|anchor| {
9903 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9904 })
9905 {
9906 editor.find_all_references_task_sources.remove(i);
9907 }
9908 });
9909 }
9910 });
9911
9912 let locations = references.await?;
9913 if locations.is_empty() {
9914 return anyhow::Ok(Navigated::No);
9915 }
9916
9917 workspace.update(&mut cx, |workspace, cx| {
9918 let title = locations
9919 .first()
9920 .as_ref()
9921 .map(|location| {
9922 let buffer = location.buffer.read(cx);
9923 format!(
9924 "References to `{}`",
9925 buffer
9926 .text_for_range(location.range.clone())
9927 .collect::<String>()
9928 )
9929 })
9930 .unwrap();
9931 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9932 Navigated::Yes
9933 })
9934 }))
9935 }
9936
9937 /// Opens a multibuffer with the given project locations in it
9938 pub fn open_locations_in_multibuffer(
9939 workspace: &mut Workspace,
9940 mut locations: Vec<Location>,
9941 title: String,
9942 split: bool,
9943 cx: &mut ViewContext<Workspace>,
9944 ) {
9945 // If there are multiple definitions, open them in a multibuffer
9946 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9947 let mut locations = locations.into_iter().peekable();
9948 let mut ranges_to_highlight = Vec::new();
9949 let capability = workspace.project().read(cx).capability();
9950
9951 let excerpt_buffer = cx.new_model(|cx| {
9952 let mut multibuffer = MultiBuffer::new(capability);
9953 while let Some(location) = locations.next() {
9954 let buffer = location.buffer.read(cx);
9955 let mut ranges_for_buffer = Vec::new();
9956 let range = location.range.to_offset(buffer);
9957 ranges_for_buffer.push(range.clone());
9958
9959 while let Some(next_location) = locations.peek() {
9960 if next_location.buffer == location.buffer {
9961 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9962 locations.next();
9963 } else {
9964 break;
9965 }
9966 }
9967
9968 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9969 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9970 location.buffer.clone(),
9971 ranges_for_buffer,
9972 DEFAULT_MULTIBUFFER_CONTEXT,
9973 cx,
9974 ))
9975 }
9976
9977 multibuffer.with_title(title)
9978 });
9979
9980 let editor = cx.new_view(|cx| {
9981 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9982 });
9983 editor.update(cx, |editor, cx| {
9984 if let Some(first_range) = ranges_to_highlight.first() {
9985 editor.change_selections(None, cx, |selections| {
9986 selections.clear_disjoint();
9987 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9988 });
9989 }
9990 editor.highlight_background::<Self>(
9991 &ranges_to_highlight,
9992 |theme| theme.editor_highlighted_line_background,
9993 cx,
9994 );
9995 });
9996
9997 let item = Box::new(editor);
9998 let item_id = item.item_id();
9999
10000 if split {
10001 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10002 } else {
10003 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10004 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10005 pane.close_current_preview_item(cx)
10006 } else {
10007 None
10008 }
10009 });
10010 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10011 }
10012 workspace.active_pane().update(cx, |pane, cx| {
10013 pane.set_preview_item_id(Some(item_id), cx);
10014 });
10015 }
10016
10017 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10018 use language::ToOffset as _;
10019
10020 let project = self.project.clone()?;
10021 let selection = self.selections.newest_anchor().clone();
10022 let (cursor_buffer, cursor_buffer_position) = self
10023 .buffer
10024 .read(cx)
10025 .text_anchor_for_position(selection.head(), cx)?;
10026 let (tail_buffer, cursor_buffer_position_end) = self
10027 .buffer
10028 .read(cx)
10029 .text_anchor_for_position(selection.tail(), cx)?;
10030 if tail_buffer != cursor_buffer {
10031 return None;
10032 }
10033
10034 let snapshot = cursor_buffer.read(cx).snapshot();
10035 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10036 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10037 let prepare_rename = project.update(cx, |project, cx| {
10038 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
10039 });
10040 drop(snapshot);
10041
10042 Some(cx.spawn(|this, mut cx| async move {
10043 let rename_range = if let Some(range) = prepare_rename.await? {
10044 Some(range)
10045 } else {
10046 this.update(&mut cx, |this, cx| {
10047 let buffer = this.buffer.read(cx).snapshot(cx);
10048 let mut buffer_highlights = this
10049 .document_highlights_for_position(selection.head(), &buffer)
10050 .filter(|highlight| {
10051 highlight.start.excerpt_id == selection.head().excerpt_id
10052 && highlight.end.excerpt_id == selection.head().excerpt_id
10053 });
10054 buffer_highlights
10055 .next()
10056 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10057 })?
10058 };
10059 if let Some(rename_range) = rename_range {
10060 this.update(&mut cx, |this, cx| {
10061 let snapshot = cursor_buffer.read(cx).snapshot();
10062 let rename_buffer_range = rename_range.to_offset(&snapshot);
10063 let cursor_offset_in_rename_range =
10064 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10065 let cursor_offset_in_rename_range_end =
10066 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10067
10068 this.take_rename(false, cx);
10069 let buffer = this.buffer.read(cx).read(cx);
10070 let cursor_offset = selection.head().to_offset(&buffer);
10071 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10072 let rename_end = rename_start + rename_buffer_range.len();
10073 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10074 let mut old_highlight_id = None;
10075 let old_name: Arc<str> = buffer
10076 .chunks(rename_start..rename_end, true)
10077 .map(|chunk| {
10078 if old_highlight_id.is_none() {
10079 old_highlight_id = chunk.syntax_highlight_id;
10080 }
10081 chunk.text
10082 })
10083 .collect::<String>()
10084 .into();
10085
10086 drop(buffer);
10087
10088 // Position the selection in the rename editor so that it matches the current selection.
10089 this.show_local_selections = false;
10090 let rename_editor = cx.new_view(|cx| {
10091 let mut editor = Editor::single_line(cx);
10092 editor.buffer.update(cx, |buffer, cx| {
10093 buffer.edit([(0..0, old_name.clone())], None, cx)
10094 });
10095 let rename_selection_range = match cursor_offset_in_rename_range
10096 .cmp(&cursor_offset_in_rename_range_end)
10097 {
10098 Ordering::Equal => {
10099 editor.select_all(&SelectAll, cx);
10100 return editor;
10101 }
10102 Ordering::Less => {
10103 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10104 }
10105 Ordering::Greater => {
10106 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10107 }
10108 };
10109 if rename_selection_range.end > old_name.len() {
10110 editor.select_all(&SelectAll, cx);
10111 } else {
10112 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10113 s.select_ranges([rename_selection_range]);
10114 });
10115 }
10116 editor
10117 });
10118 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10119 if e == &EditorEvent::Focused {
10120 cx.emit(EditorEvent::FocusedIn)
10121 }
10122 })
10123 .detach();
10124
10125 let write_highlights =
10126 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10127 let read_highlights =
10128 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10129 let ranges = write_highlights
10130 .iter()
10131 .flat_map(|(_, ranges)| ranges.iter())
10132 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10133 .cloned()
10134 .collect();
10135
10136 this.highlight_text::<Rename>(
10137 ranges,
10138 HighlightStyle {
10139 fade_out: Some(0.6),
10140 ..Default::default()
10141 },
10142 cx,
10143 );
10144 let rename_focus_handle = rename_editor.focus_handle(cx);
10145 cx.focus(&rename_focus_handle);
10146 let block_id = this.insert_blocks(
10147 [BlockProperties {
10148 style: BlockStyle::Flex,
10149 position: range.start,
10150 height: 1,
10151 render: Box::new({
10152 let rename_editor = rename_editor.clone();
10153 move |cx: &mut BlockContext| {
10154 let mut text_style = cx.editor_style.text.clone();
10155 if let Some(highlight_style) = old_highlight_id
10156 .and_then(|h| h.style(&cx.editor_style.syntax))
10157 {
10158 text_style = text_style.highlight(highlight_style);
10159 }
10160 div()
10161 .pl(cx.anchor_x)
10162 .child(EditorElement::new(
10163 &rename_editor,
10164 EditorStyle {
10165 background: cx.theme().system().transparent,
10166 local_player: cx.editor_style.local_player,
10167 text: text_style,
10168 scrollbar_width: cx.editor_style.scrollbar_width,
10169 syntax: cx.editor_style.syntax.clone(),
10170 status: cx.editor_style.status.clone(),
10171 inlay_hints_style: HighlightStyle {
10172 font_weight: Some(FontWeight::BOLD),
10173 ..make_inlay_hints_style(cx)
10174 },
10175 suggestions_style: HighlightStyle {
10176 color: Some(cx.theme().status().predictive),
10177 ..HighlightStyle::default()
10178 },
10179 ..EditorStyle::default()
10180 },
10181 ))
10182 .into_any_element()
10183 }
10184 }),
10185 disposition: BlockDisposition::Below,
10186 priority: 0,
10187 }],
10188 Some(Autoscroll::fit()),
10189 cx,
10190 )[0];
10191 this.pending_rename = Some(RenameState {
10192 range,
10193 old_name,
10194 editor: rename_editor,
10195 block_id,
10196 });
10197 })?;
10198 }
10199
10200 Ok(())
10201 }))
10202 }
10203
10204 pub fn confirm_rename(
10205 &mut self,
10206 _: &ConfirmRename,
10207 cx: &mut ViewContext<Self>,
10208 ) -> Option<Task<Result<()>>> {
10209 let rename = self.take_rename(false, cx)?;
10210 let workspace = self.workspace()?;
10211 let (start_buffer, start) = self
10212 .buffer
10213 .read(cx)
10214 .text_anchor_for_position(rename.range.start, cx)?;
10215 let (end_buffer, end) = self
10216 .buffer
10217 .read(cx)
10218 .text_anchor_for_position(rename.range.end, cx)?;
10219 if start_buffer != end_buffer {
10220 return None;
10221 }
10222
10223 let buffer = start_buffer;
10224 let range = start..end;
10225 let old_name = rename.old_name;
10226 let new_name = rename.editor.read(cx).text(cx);
10227
10228 let rename = workspace
10229 .read(cx)
10230 .project()
10231 .clone()
10232 .update(cx, |project, cx| {
10233 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
10234 });
10235 let workspace = workspace.downgrade();
10236
10237 Some(cx.spawn(|editor, mut cx| async move {
10238 let project_transaction = rename.await?;
10239 Self::open_project_transaction(
10240 &editor,
10241 workspace,
10242 project_transaction,
10243 format!("Rename: {} → {}", old_name, new_name),
10244 cx.clone(),
10245 )
10246 .await?;
10247
10248 editor.update(&mut cx, |editor, cx| {
10249 editor.refresh_document_highlights(cx);
10250 })?;
10251 Ok(())
10252 }))
10253 }
10254
10255 fn take_rename(
10256 &mut self,
10257 moving_cursor: bool,
10258 cx: &mut ViewContext<Self>,
10259 ) -> Option<RenameState> {
10260 let rename = self.pending_rename.take()?;
10261 if rename.editor.focus_handle(cx).is_focused(cx) {
10262 cx.focus(&self.focus_handle);
10263 }
10264
10265 self.remove_blocks(
10266 [rename.block_id].into_iter().collect(),
10267 Some(Autoscroll::fit()),
10268 cx,
10269 );
10270 self.clear_highlights::<Rename>(cx);
10271 self.show_local_selections = true;
10272
10273 if moving_cursor {
10274 let rename_editor = rename.editor.read(cx);
10275 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
10276
10277 // Update the selection to match the position of the selection inside
10278 // the rename editor.
10279 let snapshot = self.buffer.read(cx).read(cx);
10280 let rename_range = rename.range.to_offset(&snapshot);
10281 let cursor_in_editor = snapshot
10282 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10283 .min(rename_range.end);
10284 drop(snapshot);
10285
10286 self.change_selections(None, cx, |s| {
10287 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10288 });
10289 } else {
10290 self.refresh_document_highlights(cx);
10291 }
10292
10293 Some(rename)
10294 }
10295
10296 pub fn pending_rename(&self) -> Option<&RenameState> {
10297 self.pending_rename.as_ref()
10298 }
10299
10300 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10301 let project = match &self.project {
10302 Some(project) => project.clone(),
10303 None => return None,
10304 };
10305
10306 Some(self.perform_format(project, FormatTrigger::Manual, cx))
10307 }
10308
10309 fn perform_format(
10310 &mut self,
10311 project: Model<Project>,
10312 trigger: FormatTrigger,
10313 cx: &mut ViewContext<Self>,
10314 ) -> Task<Result<()>> {
10315 let buffer = self.buffer().clone();
10316 let mut buffers = buffer.read(cx).all_buffers();
10317 if trigger == FormatTrigger::Save {
10318 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10319 }
10320
10321 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10322 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
10323
10324 cx.spawn(|_, mut cx| async move {
10325 let transaction = futures::select_biased! {
10326 () = timeout => {
10327 log::warn!("timed out waiting for formatting");
10328 None
10329 }
10330 transaction = format.log_err().fuse() => transaction,
10331 };
10332
10333 buffer
10334 .update(&mut cx, |buffer, cx| {
10335 if let Some(transaction) = transaction {
10336 if !buffer.is_singleton() {
10337 buffer.push_transaction(&transaction.0, cx);
10338 }
10339 }
10340
10341 cx.notify();
10342 })
10343 .ok();
10344
10345 Ok(())
10346 })
10347 }
10348
10349 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10350 if let Some(project) = self.project.clone() {
10351 self.buffer.update(cx, |multi_buffer, cx| {
10352 project.update(cx, |project, cx| {
10353 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10354 });
10355 })
10356 }
10357 }
10358
10359 fn cancel_language_server_work(
10360 &mut self,
10361 _: &CancelLanguageServerWork,
10362 cx: &mut ViewContext<Self>,
10363 ) {
10364 if let Some(project) = self.project.clone() {
10365 self.buffer.update(cx, |multi_buffer, cx| {
10366 project.update(cx, |project, cx| {
10367 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10368 });
10369 })
10370 }
10371 }
10372
10373 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10374 cx.show_character_palette();
10375 }
10376
10377 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10378 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10379 let buffer = self.buffer.read(cx).snapshot(cx);
10380 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10381 let is_valid = buffer
10382 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10383 .any(|entry| {
10384 entry.diagnostic.is_primary
10385 && !entry.range.is_empty()
10386 && entry.range.start == primary_range_start
10387 && entry.diagnostic.message == active_diagnostics.primary_message
10388 });
10389
10390 if is_valid != active_diagnostics.is_valid {
10391 active_diagnostics.is_valid = is_valid;
10392 let mut new_styles = HashMap::default();
10393 for (block_id, diagnostic) in &active_diagnostics.blocks {
10394 new_styles.insert(
10395 *block_id,
10396 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10397 );
10398 }
10399 self.display_map.update(cx, |display_map, _cx| {
10400 display_map.replace_blocks(new_styles)
10401 });
10402 }
10403 }
10404 }
10405
10406 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10407 self.dismiss_diagnostics(cx);
10408 let snapshot = self.snapshot(cx);
10409 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10410 let buffer = self.buffer.read(cx).snapshot(cx);
10411
10412 let mut primary_range = None;
10413 let mut primary_message = None;
10414 let mut group_end = Point::zero();
10415 let diagnostic_group = buffer
10416 .diagnostic_group::<MultiBufferPoint>(group_id)
10417 .filter_map(|entry| {
10418 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10419 && (entry.range.start.row == entry.range.end.row
10420 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10421 {
10422 return None;
10423 }
10424 if entry.range.end > group_end {
10425 group_end = entry.range.end;
10426 }
10427 if entry.diagnostic.is_primary {
10428 primary_range = Some(entry.range.clone());
10429 primary_message = Some(entry.diagnostic.message.clone());
10430 }
10431 Some(entry)
10432 })
10433 .collect::<Vec<_>>();
10434 let primary_range = primary_range?;
10435 let primary_message = primary_message?;
10436 let primary_range =
10437 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10438
10439 let blocks = display_map
10440 .insert_blocks(
10441 diagnostic_group.iter().map(|entry| {
10442 let diagnostic = entry.diagnostic.clone();
10443 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10444 BlockProperties {
10445 style: BlockStyle::Fixed,
10446 position: buffer.anchor_after(entry.range.start),
10447 height: message_height,
10448 render: diagnostic_block_renderer(diagnostic, None, true, true),
10449 disposition: BlockDisposition::Below,
10450 priority: 0,
10451 }
10452 }),
10453 cx,
10454 )
10455 .into_iter()
10456 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10457 .collect();
10458
10459 Some(ActiveDiagnosticGroup {
10460 primary_range,
10461 primary_message,
10462 group_id,
10463 blocks,
10464 is_valid: true,
10465 })
10466 });
10467 self.active_diagnostics.is_some()
10468 }
10469
10470 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10471 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10472 self.display_map.update(cx, |display_map, cx| {
10473 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10474 });
10475 cx.notify();
10476 }
10477 }
10478
10479 pub fn set_selections_from_remote(
10480 &mut self,
10481 selections: Vec<Selection<Anchor>>,
10482 pending_selection: Option<Selection<Anchor>>,
10483 cx: &mut ViewContext<Self>,
10484 ) {
10485 let old_cursor_position = self.selections.newest_anchor().head();
10486 self.selections.change_with(cx, |s| {
10487 s.select_anchors(selections);
10488 if let Some(pending_selection) = pending_selection {
10489 s.set_pending(pending_selection, SelectMode::Character);
10490 } else {
10491 s.clear_pending();
10492 }
10493 });
10494 self.selections_did_change(false, &old_cursor_position, true, cx);
10495 }
10496
10497 fn push_to_selection_history(&mut self) {
10498 self.selection_history.push(SelectionHistoryEntry {
10499 selections: self.selections.disjoint_anchors(),
10500 select_next_state: self.select_next_state.clone(),
10501 select_prev_state: self.select_prev_state.clone(),
10502 add_selections_state: self.add_selections_state.clone(),
10503 });
10504 }
10505
10506 pub fn transact(
10507 &mut self,
10508 cx: &mut ViewContext<Self>,
10509 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10510 ) -> Option<TransactionId> {
10511 self.start_transaction_at(Instant::now(), cx);
10512 update(self, cx);
10513 self.end_transaction_at(Instant::now(), cx)
10514 }
10515
10516 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10517 self.end_selection(cx);
10518 if let Some(tx_id) = self
10519 .buffer
10520 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10521 {
10522 self.selection_history
10523 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10524 cx.emit(EditorEvent::TransactionBegun {
10525 transaction_id: tx_id,
10526 })
10527 }
10528 }
10529
10530 fn end_transaction_at(
10531 &mut self,
10532 now: Instant,
10533 cx: &mut ViewContext<Self>,
10534 ) -> Option<TransactionId> {
10535 if let Some(transaction_id) = self
10536 .buffer
10537 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10538 {
10539 if let Some((_, end_selections)) =
10540 self.selection_history.transaction_mut(transaction_id)
10541 {
10542 *end_selections = Some(self.selections.disjoint_anchors());
10543 } else {
10544 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10545 }
10546
10547 cx.emit(EditorEvent::Edited { transaction_id });
10548 Some(transaction_id)
10549 } else {
10550 None
10551 }
10552 }
10553
10554 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10555 let selection = self.selections.newest::<Point>(cx);
10556
10557 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10558 let range = if selection.is_empty() {
10559 let point = selection.head().to_display_point(&display_map);
10560 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10561 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10562 .to_point(&display_map);
10563 start..end
10564 } else {
10565 selection.range()
10566 };
10567 if display_map.folds_in_range(range).next().is_some() {
10568 self.unfold_lines(&Default::default(), cx)
10569 } else {
10570 self.fold(&Default::default(), cx)
10571 }
10572 }
10573
10574 pub fn toggle_fold_recursive(
10575 &mut self,
10576 _: &actions::ToggleFoldRecursive,
10577 cx: &mut ViewContext<Self>,
10578 ) {
10579 let selection = self.selections.newest::<Point>(cx);
10580
10581 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10582 let range = if selection.is_empty() {
10583 let point = selection.head().to_display_point(&display_map);
10584 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10585 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10586 .to_point(&display_map);
10587 start..end
10588 } else {
10589 selection.range()
10590 };
10591 if display_map.folds_in_range(range).next().is_some() {
10592 self.unfold_recursive(&Default::default(), cx)
10593 } else {
10594 self.fold_recursive(&Default::default(), cx)
10595 }
10596 }
10597
10598 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10599 let mut fold_ranges = Vec::new();
10600 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10601 let selections = self.selections.all_adjusted(cx);
10602
10603 for selection in selections {
10604 let range = selection.range().sorted();
10605 let buffer_start_row = range.start.row;
10606
10607 if range.start.row != range.end.row {
10608 let mut found = false;
10609 let mut row = range.start.row;
10610 while row <= range.end.row {
10611 if let Some((foldable_range, fold_text)) =
10612 { display_map.foldable_range(MultiBufferRow(row)) }
10613 {
10614 found = true;
10615 row = foldable_range.end.row + 1;
10616 fold_ranges.push((foldable_range, fold_text));
10617 } else {
10618 row += 1
10619 }
10620 }
10621 if found {
10622 continue;
10623 }
10624 }
10625
10626 for row in (0..=range.start.row).rev() {
10627 if let Some((foldable_range, fold_text)) =
10628 display_map.foldable_range(MultiBufferRow(row))
10629 {
10630 if foldable_range.end.row >= buffer_start_row {
10631 fold_ranges.push((foldable_range, fold_text));
10632 if row <= range.start.row {
10633 break;
10634 }
10635 }
10636 }
10637 }
10638 }
10639
10640 self.fold_ranges(fold_ranges, true, cx);
10641 }
10642
10643 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10644 let mut fold_ranges = Vec::new();
10645 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10646
10647 for row in 0..display_map.max_buffer_row().0 {
10648 if let Some((foldable_range, fold_text)) =
10649 display_map.foldable_range(MultiBufferRow(row))
10650 {
10651 fold_ranges.push((foldable_range, fold_text));
10652 }
10653 }
10654
10655 self.fold_ranges(fold_ranges, true, cx);
10656 }
10657
10658 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10659 let mut fold_ranges = Vec::new();
10660 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10661 let selections = self.selections.all_adjusted(cx);
10662
10663 for selection in selections {
10664 let range = selection.range().sorted();
10665 let buffer_start_row = range.start.row;
10666
10667 if range.start.row != range.end.row {
10668 let mut found = false;
10669 for row in range.start.row..=range.end.row {
10670 if let Some((foldable_range, fold_text)) =
10671 { display_map.foldable_range(MultiBufferRow(row)) }
10672 {
10673 found = true;
10674 fold_ranges.push((foldable_range, fold_text));
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 } else {
10689 break;
10690 }
10691 }
10692 }
10693 }
10694
10695 self.fold_ranges(fold_ranges, true, cx);
10696 }
10697
10698 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10699 let buffer_row = fold_at.buffer_row;
10700 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10701
10702 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
10703 let autoscroll = self
10704 .selections
10705 .all::<Point>(cx)
10706 .iter()
10707 .any(|selection| fold_range.overlaps(&selection.range()));
10708
10709 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
10710 }
10711 }
10712
10713 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10714 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10715 let buffer = &display_map.buffer_snapshot;
10716 let selections = self.selections.all::<Point>(cx);
10717 let ranges = selections
10718 .iter()
10719 .map(|s| {
10720 let range = s.display_range(&display_map).sorted();
10721 let mut start = range.start.to_point(&display_map);
10722 let mut end = range.end.to_point(&display_map);
10723 start.column = 0;
10724 end.column = buffer.line_len(MultiBufferRow(end.row));
10725 start..end
10726 })
10727 .collect::<Vec<_>>();
10728
10729 self.unfold_ranges(ranges, true, true, cx);
10730 }
10731
10732 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10733 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10734 let selections = self.selections.all::<Point>(cx);
10735 let ranges = selections
10736 .iter()
10737 .map(|s| {
10738 let mut range = s.display_range(&display_map).sorted();
10739 *range.start.column_mut() = 0;
10740 *range.end.column_mut() = display_map.line_len(range.end.row());
10741 let start = range.start.to_point(&display_map);
10742 let end = range.end.to_point(&display_map);
10743 start..end
10744 })
10745 .collect::<Vec<_>>();
10746
10747 self.unfold_ranges(ranges, true, true, cx);
10748 }
10749
10750 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10751 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10752
10753 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10754 ..Point::new(
10755 unfold_at.buffer_row.0,
10756 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10757 );
10758
10759 let autoscroll = self
10760 .selections
10761 .all::<Point>(cx)
10762 .iter()
10763 .any(|selection| selection.range().overlaps(&intersection_range));
10764
10765 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
10766 }
10767
10768 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10769 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10770 self.unfold_ranges(
10771 [Point::zero()..display_map.max_point().to_point(&display_map)],
10772 true,
10773 true,
10774 cx,
10775 );
10776 }
10777
10778 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10779 let selections = self.selections.all::<Point>(cx);
10780 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10781 let line_mode = self.selections.line_mode;
10782 let ranges = selections.into_iter().map(|s| {
10783 if line_mode {
10784 let start = Point::new(s.start.row, 0);
10785 let end = Point::new(
10786 s.end.row,
10787 display_map
10788 .buffer_snapshot
10789 .line_len(MultiBufferRow(s.end.row)),
10790 );
10791 (start..end, display_map.fold_placeholder.clone())
10792 } else {
10793 (s.start..s.end, display_map.fold_placeholder.clone())
10794 }
10795 });
10796 self.fold_ranges(ranges, true, cx);
10797 }
10798
10799 pub fn fold_ranges<T: ToOffset + Clone>(
10800 &mut self,
10801 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
10802 auto_scroll: bool,
10803 cx: &mut ViewContext<Self>,
10804 ) {
10805 let mut fold_ranges = Vec::new();
10806 let mut buffers_affected = HashMap::default();
10807 let multi_buffer = self.buffer().read(cx);
10808 for (fold_range, fold_text) in ranges {
10809 if let Some((_, buffer, _)) =
10810 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
10811 {
10812 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10813 };
10814 fold_ranges.push((fold_range, fold_text));
10815 }
10816
10817 let mut ranges = fold_ranges.into_iter().peekable();
10818 if ranges.peek().is_some() {
10819 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
10820
10821 if auto_scroll {
10822 self.request_autoscroll(Autoscroll::fit(), cx);
10823 }
10824
10825 for buffer in buffers_affected.into_values() {
10826 self.sync_expanded_diff_hunks(buffer, cx);
10827 }
10828
10829 cx.notify();
10830
10831 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10832 // Clear diagnostics block when folding a range that contains it.
10833 let snapshot = self.snapshot(cx);
10834 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10835 drop(snapshot);
10836 self.active_diagnostics = Some(active_diagnostics);
10837 self.dismiss_diagnostics(cx);
10838 } else {
10839 self.active_diagnostics = Some(active_diagnostics);
10840 }
10841 }
10842
10843 self.scrollbar_marker_state.dirty = true;
10844 }
10845 }
10846
10847 pub fn unfold_ranges<T: ToOffset + Clone>(
10848 &mut self,
10849 ranges: impl IntoIterator<Item = Range<T>>,
10850 inclusive: bool,
10851 auto_scroll: bool,
10852 cx: &mut ViewContext<Self>,
10853 ) {
10854 let mut unfold_ranges = Vec::new();
10855 let mut buffers_affected = HashMap::default();
10856 let multi_buffer = self.buffer().read(cx);
10857 for range in ranges {
10858 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10859 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
10860 };
10861 unfold_ranges.push(range);
10862 }
10863
10864 let mut ranges = unfold_ranges.into_iter().peekable();
10865 if ranges.peek().is_some() {
10866 self.display_map
10867 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
10868 if auto_scroll {
10869 self.request_autoscroll(Autoscroll::fit(), cx);
10870 }
10871
10872 for buffer in buffers_affected.into_values() {
10873 self.sync_expanded_diff_hunks(buffer, cx);
10874 }
10875
10876 cx.notify();
10877 self.scrollbar_marker_state.dirty = true;
10878 self.active_indent_guides_state.dirty = true;
10879 }
10880 }
10881
10882 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
10883 self.display_map.read(cx).fold_placeholder.clone()
10884 }
10885
10886 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10887 if hovered != self.gutter_hovered {
10888 self.gutter_hovered = hovered;
10889 cx.notify();
10890 }
10891 }
10892
10893 pub fn insert_blocks(
10894 &mut self,
10895 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
10896 autoscroll: Option<Autoscroll>,
10897 cx: &mut ViewContext<Self>,
10898 ) -> Vec<CustomBlockId> {
10899 let blocks = self
10900 .display_map
10901 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
10902 if let Some(autoscroll) = autoscroll {
10903 self.request_autoscroll(autoscroll, cx);
10904 }
10905 cx.notify();
10906 blocks
10907 }
10908
10909 pub fn resize_blocks(
10910 &mut self,
10911 heights: HashMap<CustomBlockId, u32>,
10912 autoscroll: Option<Autoscroll>,
10913 cx: &mut ViewContext<Self>,
10914 ) {
10915 self.display_map
10916 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
10917 if let Some(autoscroll) = autoscroll {
10918 self.request_autoscroll(autoscroll, cx);
10919 }
10920 cx.notify();
10921 }
10922
10923 pub fn replace_blocks(
10924 &mut self,
10925 renderers: HashMap<CustomBlockId, RenderBlock>,
10926 autoscroll: Option<Autoscroll>,
10927 cx: &mut ViewContext<Self>,
10928 ) {
10929 self.display_map
10930 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
10931 if let Some(autoscroll) = autoscroll {
10932 self.request_autoscroll(autoscroll, cx);
10933 }
10934 cx.notify();
10935 }
10936
10937 pub fn remove_blocks(
10938 &mut self,
10939 block_ids: HashSet<CustomBlockId>,
10940 autoscroll: Option<Autoscroll>,
10941 cx: &mut ViewContext<Self>,
10942 ) {
10943 self.display_map.update(cx, |display_map, cx| {
10944 display_map.remove_blocks(block_ids, cx)
10945 });
10946 if let Some(autoscroll) = autoscroll {
10947 self.request_autoscroll(autoscroll, cx);
10948 }
10949 cx.notify();
10950 }
10951
10952 pub fn row_for_block(
10953 &self,
10954 block_id: CustomBlockId,
10955 cx: &mut ViewContext<Self>,
10956 ) -> Option<DisplayRow> {
10957 self.display_map
10958 .update(cx, |map, cx| map.row_for_block(block_id, cx))
10959 }
10960
10961 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
10962 self.focused_block = Some(focused_block);
10963 }
10964
10965 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
10966 self.focused_block.take()
10967 }
10968
10969 pub fn insert_creases(
10970 &mut self,
10971 creases: impl IntoIterator<Item = Crease>,
10972 cx: &mut ViewContext<Self>,
10973 ) -> Vec<CreaseId> {
10974 self.display_map
10975 .update(cx, |map, cx| map.insert_creases(creases, cx))
10976 }
10977
10978 pub fn remove_creases(
10979 &mut self,
10980 ids: impl IntoIterator<Item = CreaseId>,
10981 cx: &mut ViewContext<Self>,
10982 ) {
10983 self.display_map
10984 .update(cx, |map, cx| map.remove_creases(ids, cx));
10985 }
10986
10987 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
10988 self.display_map
10989 .update(cx, |map, cx| map.snapshot(cx))
10990 .longest_row()
10991 }
10992
10993 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
10994 self.display_map
10995 .update(cx, |map, cx| map.snapshot(cx))
10996 .max_point()
10997 }
10998
10999 pub fn text(&self, cx: &AppContext) -> String {
11000 self.buffer.read(cx).read(cx).text()
11001 }
11002
11003 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11004 let text = self.text(cx);
11005 let text = text.trim();
11006
11007 if text.is_empty() {
11008 return None;
11009 }
11010
11011 Some(text.to_string())
11012 }
11013
11014 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11015 self.transact(cx, |this, cx| {
11016 this.buffer
11017 .read(cx)
11018 .as_singleton()
11019 .expect("you can only call set_text on editors for singleton buffers")
11020 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11021 });
11022 }
11023
11024 pub fn display_text(&self, cx: &mut AppContext) -> String {
11025 self.display_map
11026 .update(cx, |map, cx| map.snapshot(cx))
11027 .text()
11028 }
11029
11030 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11031 let mut wrap_guides = smallvec::smallvec![];
11032
11033 if self.show_wrap_guides == Some(false) {
11034 return wrap_guides;
11035 }
11036
11037 let settings = self.buffer.read(cx).settings_at(0, cx);
11038 if settings.show_wrap_guides {
11039 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11040 wrap_guides.push((soft_wrap as usize, true));
11041 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11042 wrap_guides.push((soft_wrap as usize, true));
11043 }
11044 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11045 }
11046
11047 wrap_guides
11048 }
11049
11050 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11051 let settings = self.buffer.read(cx).settings_at(0, cx);
11052 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11053 match mode {
11054 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11055 SoftWrap::None
11056 }
11057 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11058 language_settings::SoftWrap::PreferredLineLength => {
11059 SoftWrap::Column(settings.preferred_line_length)
11060 }
11061 language_settings::SoftWrap::Bounded => {
11062 SoftWrap::Bounded(settings.preferred_line_length)
11063 }
11064 }
11065 }
11066
11067 pub fn set_soft_wrap_mode(
11068 &mut self,
11069 mode: language_settings::SoftWrap,
11070 cx: &mut ViewContext<Self>,
11071 ) {
11072 self.soft_wrap_mode_override = Some(mode);
11073 cx.notify();
11074 }
11075
11076 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11077 let rem_size = cx.rem_size();
11078 self.display_map.update(cx, |map, cx| {
11079 map.set_font(
11080 style.text.font(),
11081 style.text.font_size.to_pixels(rem_size),
11082 cx,
11083 )
11084 });
11085 self.style = Some(style);
11086 }
11087
11088 pub fn style(&self) -> Option<&EditorStyle> {
11089 self.style.as_ref()
11090 }
11091
11092 // Called by the element. This method is not designed to be called outside of the editor
11093 // element's layout code because it does not notify when rewrapping is computed synchronously.
11094 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11095 self.display_map
11096 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11097 }
11098
11099 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11100 if self.soft_wrap_mode_override.is_some() {
11101 self.soft_wrap_mode_override.take();
11102 } else {
11103 let soft_wrap = match self.soft_wrap_mode(cx) {
11104 SoftWrap::GitDiff => return,
11105 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11106 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11107 language_settings::SoftWrap::None
11108 }
11109 };
11110 self.soft_wrap_mode_override = Some(soft_wrap);
11111 }
11112 cx.notify();
11113 }
11114
11115 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11116 let Some(workspace) = self.workspace() else {
11117 return;
11118 };
11119 let fs = workspace.read(cx).app_state().fs.clone();
11120 let current_show = TabBarSettings::get_global(cx).show;
11121 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11122 setting.show = Some(!current_show);
11123 });
11124 }
11125
11126 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11127 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11128 self.buffer
11129 .read(cx)
11130 .settings_at(0, cx)
11131 .indent_guides
11132 .enabled
11133 });
11134 self.show_indent_guides = Some(!currently_enabled);
11135 cx.notify();
11136 }
11137
11138 fn should_show_indent_guides(&self) -> Option<bool> {
11139 self.show_indent_guides
11140 }
11141
11142 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11143 let mut editor_settings = EditorSettings::get_global(cx).clone();
11144 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11145 EditorSettings::override_global(editor_settings, cx);
11146 }
11147
11148 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11149 self.use_relative_line_numbers
11150 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11151 }
11152
11153 pub fn toggle_relative_line_numbers(
11154 &mut self,
11155 _: &ToggleRelativeLineNumbers,
11156 cx: &mut ViewContext<Self>,
11157 ) {
11158 let is_relative = self.should_use_relative_line_numbers(cx);
11159 self.set_relative_line_number(Some(!is_relative), cx)
11160 }
11161
11162 pub fn set_relative_line_number(
11163 &mut self,
11164 is_relative: Option<bool>,
11165 cx: &mut ViewContext<Self>,
11166 ) {
11167 self.use_relative_line_numbers = is_relative;
11168 cx.notify();
11169 }
11170
11171 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11172 self.show_gutter = show_gutter;
11173 cx.notify();
11174 }
11175
11176 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11177 self.show_line_numbers = Some(show_line_numbers);
11178 cx.notify();
11179 }
11180
11181 pub fn set_show_git_diff_gutter(
11182 &mut self,
11183 show_git_diff_gutter: bool,
11184 cx: &mut ViewContext<Self>,
11185 ) {
11186 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11187 cx.notify();
11188 }
11189
11190 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11191 self.show_code_actions = Some(show_code_actions);
11192 cx.notify();
11193 }
11194
11195 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11196 self.show_runnables = Some(show_runnables);
11197 cx.notify();
11198 }
11199
11200 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11201 if self.display_map.read(cx).masked != masked {
11202 self.display_map.update(cx, |map, _| map.masked = masked);
11203 }
11204 cx.notify()
11205 }
11206
11207 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11208 self.show_wrap_guides = Some(show_wrap_guides);
11209 cx.notify();
11210 }
11211
11212 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11213 self.show_indent_guides = Some(show_indent_guides);
11214 cx.notify();
11215 }
11216
11217 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11218 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11219 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11220 if let Some(dir) = file.abs_path(cx).parent() {
11221 return Some(dir.to_owned());
11222 }
11223 }
11224
11225 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11226 return Some(project_path.path.to_path_buf());
11227 }
11228 }
11229
11230 None
11231 }
11232
11233 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11234 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11235 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11236 cx.reveal_path(&file.abs_path(cx));
11237 }
11238 }
11239 }
11240
11241 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11242 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11243 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11244 if let Some(path) = file.abs_path(cx).to_str() {
11245 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11246 }
11247 }
11248 }
11249 }
11250
11251 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11252 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11253 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11254 if let Some(path) = file.path().to_str() {
11255 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11256 }
11257 }
11258 }
11259 }
11260
11261 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11262 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11263
11264 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11265 self.start_git_blame(true, cx);
11266 }
11267
11268 cx.notify();
11269 }
11270
11271 pub fn toggle_git_blame_inline(
11272 &mut self,
11273 _: &ToggleGitBlameInline,
11274 cx: &mut ViewContext<Self>,
11275 ) {
11276 self.toggle_git_blame_inline_internal(true, cx);
11277 cx.notify();
11278 }
11279
11280 pub fn git_blame_inline_enabled(&self) -> bool {
11281 self.git_blame_inline_enabled
11282 }
11283
11284 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11285 self.show_selection_menu = self
11286 .show_selection_menu
11287 .map(|show_selections_menu| !show_selections_menu)
11288 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11289
11290 cx.notify();
11291 }
11292
11293 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11294 self.show_selection_menu
11295 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11296 }
11297
11298 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11299 if let Some(project) = self.project.as_ref() {
11300 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11301 return;
11302 };
11303
11304 if buffer.read(cx).file().is_none() {
11305 return;
11306 }
11307
11308 let focused = self.focus_handle(cx).contains_focused(cx);
11309
11310 let project = project.clone();
11311 let blame =
11312 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11313 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11314 self.blame = Some(blame);
11315 }
11316 }
11317
11318 fn toggle_git_blame_inline_internal(
11319 &mut self,
11320 user_triggered: bool,
11321 cx: &mut ViewContext<Self>,
11322 ) {
11323 if self.git_blame_inline_enabled {
11324 self.git_blame_inline_enabled = false;
11325 self.show_git_blame_inline = false;
11326 self.show_git_blame_inline_delay_task.take();
11327 } else {
11328 self.git_blame_inline_enabled = true;
11329 self.start_git_blame_inline(user_triggered, cx);
11330 }
11331
11332 cx.notify();
11333 }
11334
11335 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11336 self.start_git_blame(user_triggered, cx);
11337
11338 if ProjectSettings::get_global(cx)
11339 .git
11340 .inline_blame_delay()
11341 .is_some()
11342 {
11343 self.start_inline_blame_timer(cx);
11344 } else {
11345 self.show_git_blame_inline = true
11346 }
11347 }
11348
11349 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11350 self.blame.as_ref()
11351 }
11352
11353 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11354 self.show_git_blame_gutter && self.has_blame_entries(cx)
11355 }
11356
11357 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11358 self.show_git_blame_inline
11359 && self.focus_handle.is_focused(cx)
11360 && !self.newest_selection_head_on_empty_line(cx)
11361 && self.has_blame_entries(cx)
11362 }
11363
11364 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11365 self.blame()
11366 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11367 }
11368
11369 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11370 let cursor_anchor = self.selections.newest_anchor().head();
11371
11372 let snapshot = self.buffer.read(cx).snapshot(cx);
11373 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11374
11375 snapshot.line_len(buffer_row) == 0
11376 }
11377
11378 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
11379 let (path, selection, repo) = maybe!({
11380 let project_handle = self.project.as_ref()?.clone();
11381 let project = project_handle.read(cx);
11382
11383 let selection = self.selections.newest::<Point>(cx);
11384 let selection_range = selection.range();
11385
11386 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11387 (buffer, selection_range.start.row..selection_range.end.row)
11388 } else {
11389 let buffer_ranges = self
11390 .buffer()
11391 .read(cx)
11392 .range_to_buffer_ranges(selection_range, cx);
11393
11394 let (buffer, range, _) = if selection.reversed {
11395 buffer_ranges.first()
11396 } else {
11397 buffer_ranges.last()
11398 }?;
11399
11400 let snapshot = buffer.read(cx).snapshot();
11401 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11402 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11403 (buffer.clone(), selection)
11404 };
11405
11406 let path = buffer
11407 .read(cx)
11408 .file()?
11409 .as_local()?
11410 .path()
11411 .to_str()?
11412 .to_string();
11413 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
11414 Some((path, selection, repo))
11415 })
11416 .ok_or_else(|| anyhow!("unable to open git repository"))?;
11417
11418 const REMOTE_NAME: &str = "origin";
11419 let origin_url = repo
11420 .remote_url(REMOTE_NAME)
11421 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
11422 let sha = repo
11423 .head_sha()
11424 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
11425
11426 let (provider, remote) =
11427 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
11428 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
11429
11430 Ok(provider.build_permalink(
11431 remote,
11432 BuildPermalinkParams {
11433 sha: &sha,
11434 path: &path,
11435 selection: Some(selection),
11436 },
11437 ))
11438 }
11439
11440 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11441 let permalink = self.get_permalink_to_line(cx);
11442
11443 match permalink {
11444 Ok(permalink) => {
11445 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11446 }
11447 Err(err) => {
11448 let message = format!("Failed to copy permalink: {err}");
11449
11450 Err::<(), anyhow::Error>(err).log_err();
11451
11452 if let Some(workspace) = self.workspace() {
11453 workspace.update(cx, |workspace, cx| {
11454 struct CopyPermalinkToLine;
11455
11456 workspace.show_toast(
11457 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
11458 cx,
11459 )
11460 })
11461 }
11462 }
11463 }
11464 }
11465
11466 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11467 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11468 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11469 if let Some(path) = file.path().to_str() {
11470 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11471 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11472 }
11473 }
11474 }
11475 }
11476
11477 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11478 let permalink = self.get_permalink_to_line(cx);
11479
11480 match permalink {
11481 Ok(permalink) => {
11482 cx.open_url(permalink.as_ref());
11483 }
11484 Err(err) => {
11485 let message = format!("Failed to open permalink: {err}");
11486
11487 Err::<(), anyhow::Error>(err).log_err();
11488
11489 if let Some(workspace) = self.workspace() {
11490 workspace.update(cx, |workspace, cx| {
11491 struct OpenPermalinkToLine;
11492
11493 workspace.show_toast(
11494 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
11495 cx,
11496 )
11497 })
11498 }
11499 }
11500 }
11501 }
11502
11503 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11504 /// last highlight added will be used.
11505 ///
11506 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11507 pub fn highlight_rows<T: 'static>(
11508 &mut self,
11509 range: Range<Anchor>,
11510 color: Hsla,
11511 should_autoscroll: bool,
11512 cx: &mut ViewContext<Self>,
11513 ) {
11514 let snapshot = self.buffer().read(cx).snapshot(cx);
11515 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11516 let ix = row_highlights.binary_search_by(|highlight| {
11517 Ordering::Equal
11518 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11519 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11520 });
11521
11522 if let Err(mut ix) = ix {
11523 let index = post_inc(&mut self.highlight_order);
11524
11525 // If this range intersects with the preceding highlight, then merge it with
11526 // the preceding highlight. Otherwise insert a new highlight.
11527 let mut merged = false;
11528 if ix > 0 {
11529 let prev_highlight = &mut row_highlights[ix - 1];
11530 if prev_highlight
11531 .range
11532 .end
11533 .cmp(&range.start, &snapshot)
11534 .is_ge()
11535 {
11536 ix -= 1;
11537 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11538 prev_highlight.range.end = range.end;
11539 }
11540 merged = true;
11541 prev_highlight.index = index;
11542 prev_highlight.color = color;
11543 prev_highlight.should_autoscroll = should_autoscroll;
11544 }
11545 }
11546
11547 if !merged {
11548 row_highlights.insert(
11549 ix,
11550 RowHighlight {
11551 range: range.clone(),
11552 index,
11553 color,
11554 should_autoscroll,
11555 },
11556 );
11557 }
11558
11559 // If any of the following highlights intersect with this one, merge them.
11560 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11561 let highlight = &row_highlights[ix];
11562 if next_highlight
11563 .range
11564 .start
11565 .cmp(&highlight.range.end, &snapshot)
11566 .is_le()
11567 {
11568 if next_highlight
11569 .range
11570 .end
11571 .cmp(&highlight.range.end, &snapshot)
11572 .is_gt()
11573 {
11574 row_highlights[ix].range.end = next_highlight.range.end;
11575 }
11576 row_highlights.remove(ix + 1);
11577 } else {
11578 break;
11579 }
11580 }
11581 }
11582 }
11583
11584 /// Remove any highlighted row ranges of the given type that intersect the
11585 /// given ranges.
11586 pub fn remove_highlighted_rows<T: 'static>(
11587 &mut self,
11588 ranges_to_remove: Vec<Range<Anchor>>,
11589 cx: &mut ViewContext<Self>,
11590 ) {
11591 let snapshot = self.buffer().read(cx).snapshot(cx);
11592 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11593 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11594 row_highlights.retain(|highlight| {
11595 while let Some(range_to_remove) = ranges_to_remove.peek() {
11596 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11597 Ordering::Less | Ordering::Equal => {
11598 ranges_to_remove.next();
11599 }
11600 Ordering::Greater => {
11601 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11602 Ordering::Less | Ordering::Equal => {
11603 return false;
11604 }
11605 Ordering::Greater => break,
11606 }
11607 }
11608 }
11609 }
11610
11611 true
11612 })
11613 }
11614
11615 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11616 pub fn clear_row_highlights<T: 'static>(&mut self) {
11617 self.highlighted_rows.remove(&TypeId::of::<T>());
11618 }
11619
11620 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11621 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11622 self.highlighted_rows
11623 .get(&TypeId::of::<T>())
11624 .map_or(&[] as &[_], |vec| vec.as_slice())
11625 .iter()
11626 .map(|highlight| (highlight.range.clone(), highlight.color))
11627 }
11628
11629 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11630 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
11631 /// Allows to ignore certain kinds of highlights.
11632 pub fn highlighted_display_rows(
11633 &mut self,
11634 cx: &mut WindowContext,
11635 ) -> BTreeMap<DisplayRow, Hsla> {
11636 let snapshot = self.snapshot(cx);
11637 let mut used_highlight_orders = HashMap::default();
11638 self.highlighted_rows
11639 .iter()
11640 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11641 .fold(
11642 BTreeMap::<DisplayRow, Hsla>::new(),
11643 |mut unique_rows, highlight| {
11644 let start = highlight.range.start.to_display_point(&snapshot);
11645 let end = highlight.range.end.to_display_point(&snapshot);
11646 let start_row = start.row().0;
11647 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11648 && end.column() == 0
11649 {
11650 end.row().0.saturating_sub(1)
11651 } else {
11652 end.row().0
11653 };
11654 for row in start_row..=end_row {
11655 let used_index =
11656 used_highlight_orders.entry(row).or_insert(highlight.index);
11657 if highlight.index >= *used_index {
11658 *used_index = highlight.index;
11659 unique_rows.insert(DisplayRow(row), highlight.color);
11660 }
11661 }
11662 unique_rows
11663 },
11664 )
11665 }
11666
11667 pub fn highlighted_display_row_for_autoscroll(
11668 &self,
11669 snapshot: &DisplaySnapshot,
11670 ) -> Option<DisplayRow> {
11671 self.highlighted_rows
11672 .values()
11673 .flat_map(|highlighted_rows| highlighted_rows.iter())
11674 .filter_map(|highlight| {
11675 if highlight.should_autoscroll {
11676 Some(highlight.range.start.to_display_point(snapshot).row())
11677 } else {
11678 None
11679 }
11680 })
11681 .min()
11682 }
11683
11684 pub fn set_search_within_ranges(
11685 &mut self,
11686 ranges: &[Range<Anchor>],
11687 cx: &mut ViewContext<Self>,
11688 ) {
11689 self.highlight_background::<SearchWithinRange>(
11690 ranges,
11691 |colors| colors.editor_document_highlight_read_background,
11692 cx,
11693 )
11694 }
11695
11696 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11697 self.breadcrumb_header = Some(new_header);
11698 }
11699
11700 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11701 self.clear_background_highlights::<SearchWithinRange>(cx);
11702 }
11703
11704 pub fn highlight_background<T: 'static>(
11705 &mut self,
11706 ranges: &[Range<Anchor>],
11707 color_fetcher: fn(&ThemeColors) -> Hsla,
11708 cx: &mut ViewContext<Self>,
11709 ) {
11710 self.background_highlights
11711 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11712 self.scrollbar_marker_state.dirty = true;
11713 cx.notify();
11714 }
11715
11716 pub fn clear_background_highlights<T: 'static>(
11717 &mut self,
11718 cx: &mut ViewContext<Self>,
11719 ) -> Option<BackgroundHighlight> {
11720 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11721 if !text_highlights.1.is_empty() {
11722 self.scrollbar_marker_state.dirty = true;
11723 cx.notify();
11724 }
11725 Some(text_highlights)
11726 }
11727
11728 pub fn highlight_gutter<T: 'static>(
11729 &mut self,
11730 ranges: &[Range<Anchor>],
11731 color_fetcher: fn(&AppContext) -> Hsla,
11732 cx: &mut ViewContext<Self>,
11733 ) {
11734 self.gutter_highlights
11735 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11736 cx.notify();
11737 }
11738
11739 pub fn clear_gutter_highlights<T: 'static>(
11740 &mut self,
11741 cx: &mut ViewContext<Self>,
11742 ) -> Option<GutterHighlight> {
11743 cx.notify();
11744 self.gutter_highlights.remove(&TypeId::of::<T>())
11745 }
11746
11747 #[cfg(feature = "test-support")]
11748 pub fn all_text_background_highlights(
11749 &mut self,
11750 cx: &mut ViewContext<Self>,
11751 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11752 let snapshot = self.snapshot(cx);
11753 let buffer = &snapshot.buffer_snapshot;
11754 let start = buffer.anchor_before(0);
11755 let end = buffer.anchor_after(buffer.len());
11756 let theme = cx.theme().colors();
11757 self.background_highlights_in_range(start..end, &snapshot, theme)
11758 }
11759
11760 #[cfg(feature = "test-support")]
11761 pub fn search_background_highlights(
11762 &mut self,
11763 cx: &mut ViewContext<Self>,
11764 ) -> Vec<Range<Point>> {
11765 let snapshot = self.buffer().read(cx).snapshot(cx);
11766
11767 let highlights = self
11768 .background_highlights
11769 .get(&TypeId::of::<items::BufferSearchHighlights>());
11770
11771 if let Some((_color, ranges)) = highlights {
11772 ranges
11773 .iter()
11774 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11775 .collect_vec()
11776 } else {
11777 vec![]
11778 }
11779 }
11780
11781 fn document_highlights_for_position<'a>(
11782 &'a self,
11783 position: Anchor,
11784 buffer: &'a MultiBufferSnapshot,
11785 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11786 let read_highlights = self
11787 .background_highlights
11788 .get(&TypeId::of::<DocumentHighlightRead>())
11789 .map(|h| &h.1);
11790 let write_highlights = self
11791 .background_highlights
11792 .get(&TypeId::of::<DocumentHighlightWrite>())
11793 .map(|h| &h.1);
11794 let left_position = position.bias_left(buffer);
11795 let right_position = position.bias_right(buffer);
11796 read_highlights
11797 .into_iter()
11798 .chain(write_highlights)
11799 .flat_map(move |ranges| {
11800 let start_ix = match ranges.binary_search_by(|probe| {
11801 let cmp = probe.end.cmp(&left_position, buffer);
11802 if cmp.is_ge() {
11803 Ordering::Greater
11804 } else {
11805 Ordering::Less
11806 }
11807 }) {
11808 Ok(i) | Err(i) => i,
11809 };
11810
11811 ranges[start_ix..]
11812 .iter()
11813 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11814 })
11815 }
11816
11817 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11818 self.background_highlights
11819 .get(&TypeId::of::<T>())
11820 .map_or(false, |(_, highlights)| !highlights.is_empty())
11821 }
11822
11823 pub fn background_highlights_in_range(
11824 &self,
11825 search_range: Range<Anchor>,
11826 display_snapshot: &DisplaySnapshot,
11827 theme: &ThemeColors,
11828 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11829 let mut results = Vec::new();
11830 for (color_fetcher, ranges) in self.background_highlights.values() {
11831 let color = color_fetcher(theme);
11832 let start_ix = match ranges.binary_search_by(|probe| {
11833 let cmp = probe
11834 .end
11835 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11836 if cmp.is_gt() {
11837 Ordering::Greater
11838 } else {
11839 Ordering::Less
11840 }
11841 }) {
11842 Ok(i) | Err(i) => i,
11843 };
11844 for range in &ranges[start_ix..] {
11845 if range
11846 .start
11847 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11848 .is_ge()
11849 {
11850 break;
11851 }
11852
11853 let start = range.start.to_display_point(display_snapshot);
11854 let end = range.end.to_display_point(display_snapshot);
11855 results.push((start..end, color))
11856 }
11857 }
11858 results
11859 }
11860
11861 pub fn background_highlight_row_ranges<T: 'static>(
11862 &self,
11863 search_range: Range<Anchor>,
11864 display_snapshot: &DisplaySnapshot,
11865 count: usize,
11866 ) -> Vec<RangeInclusive<DisplayPoint>> {
11867 let mut results = Vec::new();
11868 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
11869 return vec![];
11870 };
11871
11872 let start_ix = match ranges.binary_search_by(|probe| {
11873 let cmp = probe
11874 .end
11875 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11876 if cmp.is_gt() {
11877 Ordering::Greater
11878 } else {
11879 Ordering::Less
11880 }
11881 }) {
11882 Ok(i) | Err(i) => i,
11883 };
11884 let mut push_region = |start: Option<Point>, end: Option<Point>| {
11885 if let (Some(start_display), Some(end_display)) = (start, end) {
11886 results.push(
11887 start_display.to_display_point(display_snapshot)
11888 ..=end_display.to_display_point(display_snapshot),
11889 );
11890 }
11891 };
11892 let mut start_row: Option<Point> = None;
11893 let mut end_row: Option<Point> = None;
11894 if ranges.len() > count {
11895 return Vec::new();
11896 }
11897 for range in &ranges[start_ix..] {
11898 if range
11899 .start
11900 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11901 .is_ge()
11902 {
11903 break;
11904 }
11905 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
11906 if let Some(current_row) = &end_row {
11907 if end.row == current_row.row {
11908 continue;
11909 }
11910 }
11911 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
11912 if start_row.is_none() {
11913 assert_eq!(end_row, None);
11914 start_row = Some(start);
11915 end_row = Some(end);
11916 continue;
11917 }
11918 if let Some(current_end) = end_row.as_mut() {
11919 if start.row > current_end.row + 1 {
11920 push_region(start_row, end_row);
11921 start_row = Some(start);
11922 end_row = Some(end);
11923 } else {
11924 // Merge two hunks.
11925 *current_end = end;
11926 }
11927 } else {
11928 unreachable!();
11929 }
11930 }
11931 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
11932 push_region(start_row, end_row);
11933 results
11934 }
11935
11936 pub fn gutter_highlights_in_range(
11937 &self,
11938 search_range: Range<Anchor>,
11939 display_snapshot: &DisplaySnapshot,
11940 cx: &AppContext,
11941 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11942 let mut results = Vec::new();
11943 for (color_fetcher, ranges) in self.gutter_highlights.values() {
11944 let color = color_fetcher(cx);
11945 let start_ix = match ranges.binary_search_by(|probe| {
11946 let cmp = probe
11947 .end
11948 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11949 if cmp.is_gt() {
11950 Ordering::Greater
11951 } else {
11952 Ordering::Less
11953 }
11954 }) {
11955 Ok(i) | Err(i) => i,
11956 };
11957 for range in &ranges[start_ix..] {
11958 if range
11959 .start
11960 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
11961 .is_ge()
11962 {
11963 break;
11964 }
11965
11966 let start = range.start.to_display_point(display_snapshot);
11967 let end = range.end.to_display_point(display_snapshot);
11968 results.push((start..end, color))
11969 }
11970 }
11971 results
11972 }
11973
11974 /// Get the text ranges corresponding to the redaction query
11975 pub fn redacted_ranges(
11976 &self,
11977 search_range: Range<Anchor>,
11978 display_snapshot: &DisplaySnapshot,
11979 cx: &WindowContext,
11980 ) -> Vec<Range<DisplayPoint>> {
11981 display_snapshot
11982 .buffer_snapshot
11983 .redacted_ranges(search_range, |file| {
11984 if let Some(file) = file {
11985 file.is_private()
11986 && EditorSettings::get(
11987 Some(SettingsLocation {
11988 worktree_id: file.worktree_id(cx),
11989 path: file.path().as_ref(),
11990 }),
11991 cx,
11992 )
11993 .redact_private_values
11994 } else {
11995 false
11996 }
11997 })
11998 .map(|range| {
11999 range.start.to_display_point(display_snapshot)
12000 ..range.end.to_display_point(display_snapshot)
12001 })
12002 .collect()
12003 }
12004
12005 pub fn highlight_text<T: 'static>(
12006 &mut self,
12007 ranges: Vec<Range<Anchor>>,
12008 style: HighlightStyle,
12009 cx: &mut ViewContext<Self>,
12010 ) {
12011 self.display_map.update(cx, |map, _| {
12012 map.highlight_text(TypeId::of::<T>(), ranges, style)
12013 });
12014 cx.notify();
12015 }
12016
12017 pub(crate) fn highlight_inlays<T: 'static>(
12018 &mut self,
12019 highlights: Vec<InlayHighlight>,
12020 style: HighlightStyle,
12021 cx: &mut ViewContext<Self>,
12022 ) {
12023 self.display_map.update(cx, |map, _| {
12024 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12025 });
12026 cx.notify();
12027 }
12028
12029 pub fn text_highlights<'a, T: 'static>(
12030 &'a self,
12031 cx: &'a AppContext,
12032 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12033 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12034 }
12035
12036 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12037 let cleared = self
12038 .display_map
12039 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12040 if cleared {
12041 cx.notify();
12042 }
12043 }
12044
12045 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12046 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12047 && self.focus_handle.is_focused(cx)
12048 }
12049
12050 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12051 self.show_cursor_when_unfocused = is_enabled;
12052 cx.notify();
12053 }
12054
12055 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12056 cx.notify();
12057 }
12058
12059 fn on_buffer_event(
12060 &mut self,
12061 multibuffer: Model<MultiBuffer>,
12062 event: &multi_buffer::Event,
12063 cx: &mut ViewContext<Self>,
12064 ) {
12065 match event {
12066 multi_buffer::Event::Edited {
12067 singleton_buffer_edited,
12068 } => {
12069 self.scrollbar_marker_state.dirty = true;
12070 self.active_indent_guides_state.dirty = true;
12071 self.refresh_active_diagnostics(cx);
12072 self.refresh_code_actions(cx);
12073 if self.has_active_inline_completion(cx) {
12074 self.update_visible_inline_completion(cx);
12075 }
12076 cx.emit(EditorEvent::BufferEdited);
12077 cx.emit(SearchEvent::MatchesInvalidated);
12078 if *singleton_buffer_edited {
12079 if let Some(project) = &self.project {
12080 let project = project.read(cx);
12081 #[allow(clippy::mutable_key_type)]
12082 let languages_affected = multibuffer
12083 .read(cx)
12084 .all_buffers()
12085 .into_iter()
12086 .filter_map(|buffer| {
12087 let buffer = buffer.read(cx);
12088 let language = buffer.language()?;
12089 if project.is_local()
12090 && project.language_servers_for_buffer(buffer, cx).count() == 0
12091 {
12092 None
12093 } else {
12094 Some(language)
12095 }
12096 })
12097 .cloned()
12098 .collect::<HashSet<_>>();
12099 if !languages_affected.is_empty() {
12100 self.refresh_inlay_hints(
12101 InlayHintRefreshReason::BufferEdited(languages_affected),
12102 cx,
12103 );
12104 }
12105 }
12106 }
12107
12108 let Some(project) = &self.project else { return };
12109 let telemetry = project.read(cx).client().telemetry().clone();
12110 refresh_linked_ranges(self, cx);
12111 telemetry.log_edit_event("editor");
12112 }
12113 multi_buffer::Event::ExcerptsAdded {
12114 buffer,
12115 predecessor,
12116 excerpts,
12117 } => {
12118 self.tasks_update_task = Some(self.refresh_runnables(cx));
12119 cx.emit(EditorEvent::ExcerptsAdded {
12120 buffer: buffer.clone(),
12121 predecessor: *predecessor,
12122 excerpts: excerpts.clone(),
12123 });
12124 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12125 }
12126 multi_buffer::Event::ExcerptsRemoved { ids } => {
12127 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12128 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12129 }
12130 multi_buffer::Event::ExcerptsEdited { ids } => {
12131 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12132 }
12133 multi_buffer::Event::ExcerptsExpanded { ids } => {
12134 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12135 }
12136 multi_buffer::Event::Reparsed(buffer_id) => {
12137 self.tasks_update_task = Some(self.refresh_runnables(cx));
12138
12139 cx.emit(EditorEvent::Reparsed(*buffer_id));
12140 }
12141 multi_buffer::Event::LanguageChanged(buffer_id) => {
12142 linked_editing_ranges::refresh_linked_ranges(self, cx);
12143 cx.emit(EditorEvent::Reparsed(*buffer_id));
12144 cx.notify();
12145 }
12146 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12147 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12148 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12149 cx.emit(EditorEvent::TitleChanged)
12150 }
12151 multi_buffer::Event::DiffBaseChanged => {
12152 self.scrollbar_marker_state.dirty = true;
12153 cx.emit(EditorEvent::DiffBaseChanged);
12154 cx.notify();
12155 }
12156 multi_buffer::Event::DiffUpdated { buffer } => {
12157 self.sync_expanded_diff_hunks(buffer.clone(), cx);
12158 cx.notify();
12159 }
12160 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12161 multi_buffer::Event::DiagnosticsUpdated => {
12162 self.refresh_active_diagnostics(cx);
12163 self.scrollbar_marker_state.dirty = true;
12164 cx.notify();
12165 }
12166 _ => {}
12167 };
12168 }
12169
12170 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12171 cx.notify();
12172 }
12173
12174 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12175 self.tasks_update_task = Some(self.refresh_runnables(cx));
12176 self.refresh_inline_completion(true, false, cx);
12177 self.refresh_inlay_hints(
12178 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12179 self.selections.newest_anchor().head(),
12180 &self.buffer.read(cx).snapshot(cx),
12181 cx,
12182 )),
12183 cx,
12184 );
12185
12186 let old_cursor_shape = self.cursor_shape;
12187
12188 {
12189 let editor_settings = EditorSettings::get_global(cx);
12190 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12191 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12192 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12193 }
12194
12195 if old_cursor_shape != self.cursor_shape {
12196 cx.emit(EditorEvent::CursorShapeChanged);
12197 }
12198
12199 let project_settings = ProjectSettings::get_global(cx);
12200 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12201
12202 if self.mode == EditorMode::Full {
12203 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12204 if self.git_blame_inline_enabled != inline_blame_enabled {
12205 self.toggle_git_blame_inline_internal(false, cx);
12206 }
12207 }
12208
12209 cx.notify();
12210 }
12211
12212 pub fn set_searchable(&mut self, searchable: bool) {
12213 self.searchable = searchable;
12214 }
12215
12216 pub fn searchable(&self) -> bool {
12217 self.searchable
12218 }
12219
12220 fn open_proposed_changes_editor(
12221 &mut self,
12222 _: &OpenProposedChangesEditor,
12223 cx: &mut ViewContext<Self>,
12224 ) {
12225 let Some(workspace) = self.workspace() else {
12226 cx.propagate();
12227 return;
12228 };
12229
12230 let buffer = self.buffer.read(cx);
12231 let mut new_selections_by_buffer = HashMap::default();
12232 for selection in self.selections.all::<usize>(cx) {
12233 for (buffer, mut range, _) in
12234 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12235 {
12236 if selection.reversed {
12237 mem::swap(&mut range.start, &mut range.end);
12238 }
12239 let mut range = range.to_point(buffer.read(cx));
12240 range.start.column = 0;
12241 range.end.column = buffer.read(cx).line_len(range.end.row);
12242 new_selections_by_buffer
12243 .entry(buffer)
12244 .or_insert(Vec::new())
12245 .push(range)
12246 }
12247 }
12248
12249 let proposed_changes_buffers = new_selections_by_buffer
12250 .into_iter()
12251 .map(|(buffer, ranges)| ProposedChangesBuffer { buffer, ranges })
12252 .collect::<Vec<_>>();
12253 let proposed_changes_editor = cx.new_view(|cx| {
12254 ProposedChangesEditor::new(proposed_changes_buffers, self.project.clone(), cx)
12255 });
12256
12257 cx.window_context().defer(move |cx| {
12258 workspace.update(cx, |workspace, cx| {
12259 workspace.active_pane().update(cx, |pane, cx| {
12260 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12261 });
12262 });
12263 });
12264 }
12265
12266 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12267 self.open_excerpts_common(true, cx)
12268 }
12269
12270 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12271 self.open_excerpts_common(false, cx)
12272 }
12273
12274 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
12275 let buffer = self.buffer.read(cx);
12276 if buffer.is_singleton() {
12277 cx.propagate();
12278 return;
12279 }
12280
12281 let Some(workspace) = self.workspace() else {
12282 cx.propagate();
12283 return;
12284 };
12285
12286 let mut new_selections_by_buffer = HashMap::default();
12287 for selection in self.selections.all::<usize>(cx) {
12288 for (buffer, mut range, _) in
12289 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12290 {
12291 if selection.reversed {
12292 mem::swap(&mut range.start, &mut range.end);
12293 }
12294 new_selections_by_buffer
12295 .entry(buffer)
12296 .or_insert(Vec::new())
12297 .push(range)
12298 }
12299 }
12300
12301 // We defer the pane interaction because we ourselves are a workspace item
12302 // and activating a new item causes the pane to call a method on us reentrantly,
12303 // which panics if we're on the stack.
12304 cx.window_context().defer(move |cx| {
12305 workspace.update(cx, |workspace, cx| {
12306 let pane = if split {
12307 workspace.adjacent_pane(cx)
12308 } else {
12309 workspace.active_pane().clone()
12310 };
12311
12312 for (buffer, ranges) in new_selections_by_buffer {
12313 let editor =
12314 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
12315 editor.update(cx, |editor, cx| {
12316 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
12317 s.select_ranges(ranges);
12318 });
12319 });
12320 }
12321 })
12322 });
12323 }
12324
12325 fn jump(
12326 &mut self,
12327 path: ProjectPath,
12328 position: Point,
12329 anchor: language::Anchor,
12330 offset_from_top: u32,
12331 cx: &mut ViewContext<Self>,
12332 ) {
12333 let workspace = self.workspace();
12334 cx.spawn(|_, mut cx| async move {
12335 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
12336 let editor = workspace.update(&mut cx, |workspace, cx| {
12337 // Reset the preview item id before opening the new item
12338 workspace.active_pane().update(cx, |pane, cx| {
12339 pane.set_preview_item_id(None, cx);
12340 });
12341 workspace.open_path_preview(path, None, true, true, cx)
12342 })?;
12343 let editor = editor
12344 .await?
12345 .downcast::<Editor>()
12346 .ok_or_else(|| anyhow!("opened item was not an editor"))?
12347 .downgrade();
12348 editor.update(&mut cx, |editor, cx| {
12349 let buffer = editor
12350 .buffer()
12351 .read(cx)
12352 .as_singleton()
12353 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
12354 let buffer = buffer.read(cx);
12355 let cursor = if buffer.can_resolve(&anchor) {
12356 language::ToPoint::to_point(&anchor, buffer)
12357 } else {
12358 buffer.clip_point(position, Bias::Left)
12359 };
12360
12361 let nav_history = editor.nav_history.take();
12362 editor.change_selections(
12363 Some(Autoscroll::top_relative(offset_from_top as usize)),
12364 cx,
12365 |s| {
12366 s.select_ranges([cursor..cursor]);
12367 },
12368 );
12369 editor.nav_history = nav_history;
12370
12371 anyhow::Ok(())
12372 })??;
12373
12374 anyhow::Ok(())
12375 })
12376 .detach_and_log_err(cx);
12377 }
12378
12379 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12380 let snapshot = self.buffer.read(cx).read(cx);
12381 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12382 Some(
12383 ranges
12384 .iter()
12385 .map(move |range| {
12386 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12387 })
12388 .collect(),
12389 )
12390 }
12391
12392 fn selection_replacement_ranges(
12393 &self,
12394 range: Range<OffsetUtf16>,
12395 cx: &AppContext,
12396 ) -> Vec<Range<OffsetUtf16>> {
12397 let selections = self.selections.all::<OffsetUtf16>(cx);
12398 let newest_selection = selections
12399 .iter()
12400 .max_by_key(|selection| selection.id)
12401 .unwrap();
12402 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12403 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12404 let snapshot = self.buffer.read(cx).read(cx);
12405 selections
12406 .into_iter()
12407 .map(|mut selection| {
12408 selection.start.0 =
12409 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12410 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12411 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12412 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12413 })
12414 .collect()
12415 }
12416
12417 fn report_editor_event(
12418 &self,
12419 operation: &'static str,
12420 file_extension: Option<String>,
12421 cx: &AppContext,
12422 ) {
12423 if cfg!(any(test, feature = "test-support")) {
12424 return;
12425 }
12426
12427 let Some(project) = &self.project else { return };
12428
12429 // If None, we are in a file without an extension
12430 let file = self
12431 .buffer
12432 .read(cx)
12433 .as_singleton()
12434 .and_then(|b| b.read(cx).file());
12435 let file_extension = file_extension.or(file
12436 .as_ref()
12437 .and_then(|file| Path::new(file.file_name(cx)).extension())
12438 .and_then(|e| e.to_str())
12439 .map(|a| a.to_string()));
12440
12441 let vim_mode = cx
12442 .global::<SettingsStore>()
12443 .raw_user_settings()
12444 .get("vim_mode")
12445 == Some(&serde_json::Value::Bool(true));
12446
12447 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12448 == language::language_settings::InlineCompletionProvider::Copilot;
12449 let copilot_enabled_for_language = self
12450 .buffer
12451 .read(cx)
12452 .settings_at(0, cx)
12453 .show_inline_completions;
12454
12455 let telemetry = project.read(cx).client().telemetry().clone();
12456 telemetry.report_editor_event(
12457 file_extension,
12458 vim_mode,
12459 operation,
12460 copilot_enabled,
12461 copilot_enabled_for_language,
12462 )
12463 }
12464
12465 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12466 /// with each line being an array of {text, highlight} objects.
12467 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12468 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12469 return;
12470 };
12471
12472 #[derive(Serialize)]
12473 struct Chunk<'a> {
12474 text: String,
12475 highlight: Option<&'a str>,
12476 }
12477
12478 let snapshot = buffer.read(cx).snapshot();
12479 let range = self
12480 .selected_text_range(false, cx)
12481 .and_then(|selection| {
12482 if selection.range.is_empty() {
12483 None
12484 } else {
12485 Some(selection.range)
12486 }
12487 })
12488 .unwrap_or_else(|| 0..snapshot.len());
12489
12490 let chunks = snapshot.chunks(range, true);
12491 let mut lines = Vec::new();
12492 let mut line: VecDeque<Chunk> = VecDeque::new();
12493
12494 let Some(style) = self.style.as_ref() else {
12495 return;
12496 };
12497
12498 for chunk in chunks {
12499 let highlight = chunk
12500 .syntax_highlight_id
12501 .and_then(|id| id.name(&style.syntax));
12502 let mut chunk_lines = chunk.text.split('\n').peekable();
12503 while let Some(text) = chunk_lines.next() {
12504 let mut merged_with_last_token = false;
12505 if let Some(last_token) = line.back_mut() {
12506 if last_token.highlight == highlight {
12507 last_token.text.push_str(text);
12508 merged_with_last_token = true;
12509 }
12510 }
12511
12512 if !merged_with_last_token {
12513 line.push_back(Chunk {
12514 text: text.into(),
12515 highlight,
12516 });
12517 }
12518
12519 if chunk_lines.peek().is_some() {
12520 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12521 line.pop_front();
12522 }
12523 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12524 line.pop_back();
12525 }
12526
12527 lines.push(mem::take(&mut line));
12528 }
12529 }
12530 }
12531
12532 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12533 return;
12534 };
12535 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12536 }
12537
12538 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12539 &self.inlay_hint_cache
12540 }
12541
12542 pub fn replay_insert_event(
12543 &mut self,
12544 text: &str,
12545 relative_utf16_range: Option<Range<isize>>,
12546 cx: &mut ViewContext<Self>,
12547 ) {
12548 if !self.input_enabled {
12549 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12550 return;
12551 }
12552 if let Some(relative_utf16_range) = relative_utf16_range {
12553 let selections = self.selections.all::<OffsetUtf16>(cx);
12554 self.change_selections(None, cx, |s| {
12555 let new_ranges = selections.into_iter().map(|range| {
12556 let start = OffsetUtf16(
12557 range
12558 .head()
12559 .0
12560 .saturating_add_signed(relative_utf16_range.start),
12561 );
12562 let end = OffsetUtf16(
12563 range
12564 .head()
12565 .0
12566 .saturating_add_signed(relative_utf16_range.end),
12567 );
12568 start..end
12569 });
12570 s.select_ranges(new_ranges);
12571 });
12572 }
12573
12574 self.handle_input(text, cx);
12575 }
12576
12577 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12578 let Some(project) = self.project.as_ref() else {
12579 return false;
12580 };
12581 let project = project.read(cx);
12582
12583 let mut supports = false;
12584 self.buffer().read(cx).for_each_buffer(|buffer| {
12585 if !supports {
12586 supports = project
12587 .language_servers_for_buffer(buffer.read(cx), cx)
12588 .any(
12589 |(_, server)| match server.capabilities().inlay_hint_provider {
12590 Some(lsp::OneOf::Left(enabled)) => enabled,
12591 Some(lsp::OneOf::Right(_)) => true,
12592 None => false,
12593 },
12594 )
12595 }
12596 });
12597 supports
12598 }
12599
12600 pub fn focus(&self, cx: &mut WindowContext) {
12601 cx.focus(&self.focus_handle)
12602 }
12603
12604 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12605 self.focus_handle.is_focused(cx)
12606 }
12607
12608 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12609 cx.emit(EditorEvent::Focused);
12610
12611 if let Some(descendant) = self
12612 .last_focused_descendant
12613 .take()
12614 .and_then(|descendant| descendant.upgrade())
12615 {
12616 cx.focus(&descendant);
12617 } else {
12618 if let Some(blame) = self.blame.as_ref() {
12619 blame.update(cx, GitBlame::focus)
12620 }
12621
12622 self.blink_manager.update(cx, BlinkManager::enable);
12623 self.show_cursor_names(cx);
12624 self.buffer.update(cx, |buffer, cx| {
12625 buffer.finalize_last_transaction(cx);
12626 if self.leader_peer_id.is_none() {
12627 buffer.set_active_selections(
12628 &self.selections.disjoint_anchors(),
12629 self.selections.line_mode,
12630 self.cursor_shape,
12631 cx,
12632 );
12633 }
12634 });
12635 }
12636 }
12637
12638 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12639 cx.emit(EditorEvent::FocusedIn)
12640 }
12641
12642 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12643 if event.blurred != self.focus_handle {
12644 self.last_focused_descendant = Some(event.blurred);
12645 }
12646 }
12647
12648 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12649 self.blink_manager.update(cx, BlinkManager::disable);
12650 self.buffer
12651 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12652
12653 if let Some(blame) = self.blame.as_ref() {
12654 blame.update(cx, GitBlame::blur)
12655 }
12656 if !self.hover_state.focused(cx) {
12657 hide_hover(self, cx);
12658 }
12659
12660 self.hide_context_menu(cx);
12661 cx.emit(EditorEvent::Blurred);
12662 cx.notify();
12663 }
12664
12665 pub fn register_action<A: Action>(
12666 &mut self,
12667 listener: impl Fn(&A, &mut WindowContext) + 'static,
12668 ) -> Subscription {
12669 let id = self.next_editor_action_id.post_inc();
12670 let listener = Arc::new(listener);
12671 self.editor_actions.borrow_mut().insert(
12672 id,
12673 Box::new(move |cx| {
12674 let cx = cx.window_context();
12675 let listener = listener.clone();
12676 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12677 let action = action.downcast_ref().unwrap();
12678 if phase == DispatchPhase::Bubble {
12679 listener(action, cx)
12680 }
12681 })
12682 }),
12683 );
12684
12685 let editor_actions = self.editor_actions.clone();
12686 Subscription::new(move || {
12687 editor_actions.borrow_mut().remove(&id);
12688 })
12689 }
12690
12691 pub fn file_header_size(&self) -> u32 {
12692 self.file_header_size
12693 }
12694
12695 pub fn revert(
12696 &mut self,
12697 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12698 cx: &mut ViewContext<Self>,
12699 ) {
12700 self.buffer().update(cx, |multi_buffer, cx| {
12701 for (buffer_id, changes) in revert_changes {
12702 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12703 buffer.update(cx, |buffer, cx| {
12704 buffer.edit(
12705 changes.into_iter().map(|(range, text)| {
12706 (range, text.to_string().map(Arc::<str>::from))
12707 }),
12708 None,
12709 cx,
12710 );
12711 });
12712 }
12713 }
12714 });
12715 self.change_selections(None, cx, |selections| selections.refresh());
12716 }
12717
12718 pub fn to_pixel_point(
12719 &mut self,
12720 source: multi_buffer::Anchor,
12721 editor_snapshot: &EditorSnapshot,
12722 cx: &mut ViewContext<Self>,
12723 ) -> Option<gpui::Point<Pixels>> {
12724 let source_point = source.to_display_point(editor_snapshot);
12725 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12726 }
12727
12728 pub fn display_to_pixel_point(
12729 &mut self,
12730 source: DisplayPoint,
12731 editor_snapshot: &EditorSnapshot,
12732 cx: &mut ViewContext<Self>,
12733 ) -> Option<gpui::Point<Pixels>> {
12734 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12735 let text_layout_details = self.text_layout_details(cx);
12736 let scroll_top = text_layout_details
12737 .scroll_anchor
12738 .scroll_position(editor_snapshot)
12739 .y;
12740
12741 if source.row().as_f32() < scroll_top.floor() {
12742 return None;
12743 }
12744 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12745 let source_y = line_height * (source.row().as_f32() - scroll_top);
12746 Some(gpui::Point::new(source_x, source_y))
12747 }
12748
12749 pub fn has_active_completions_menu(&self) -> bool {
12750 self.context_menu.read().as_ref().map_or(false, |menu| {
12751 menu.visible() && matches!(menu, ContextMenu::Completions(_))
12752 })
12753 }
12754
12755 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12756 self.addons
12757 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
12758 }
12759
12760 pub fn unregister_addon<T: Addon>(&mut self) {
12761 self.addons.remove(&std::any::TypeId::of::<T>());
12762 }
12763
12764 pub fn addon<T: Addon>(&self) -> Option<&T> {
12765 let type_id = std::any::TypeId::of::<T>();
12766 self.addons
12767 .get(&type_id)
12768 .and_then(|item| item.to_any().downcast_ref::<T>())
12769 }
12770}
12771
12772fn hunks_for_selections(
12773 multi_buffer_snapshot: &MultiBufferSnapshot,
12774 selections: &[Selection<Anchor>],
12775) -> Vec<MultiBufferDiffHunk> {
12776 let buffer_rows_for_selections = selections.iter().map(|selection| {
12777 let head = selection.head();
12778 let tail = selection.tail();
12779 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
12780 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
12781 if start > end {
12782 end..start
12783 } else {
12784 start..end
12785 }
12786 });
12787
12788 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
12789}
12790
12791pub fn hunks_for_rows(
12792 rows: impl Iterator<Item = Range<MultiBufferRow>>,
12793 multi_buffer_snapshot: &MultiBufferSnapshot,
12794) -> Vec<MultiBufferDiffHunk> {
12795 let mut hunks = Vec::new();
12796 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
12797 HashMap::default();
12798 for selected_multi_buffer_rows in rows {
12799 let query_rows =
12800 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
12801 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
12802 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
12803 // when the caret is just above or just below the deleted hunk.
12804 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
12805 let related_to_selection = if allow_adjacent {
12806 hunk.row_range.overlaps(&query_rows)
12807 || hunk.row_range.start == query_rows.end
12808 || hunk.row_range.end == query_rows.start
12809 } else {
12810 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
12811 // `hunk.row_range` is exclusive (e.g. [2..3] means 2nd row is selected)
12812 hunk.row_range.overlaps(&selected_multi_buffer_rows)
12813 || selected_multi_buffer_rows.end == hunk.row_range.start
12814 };
12815 if related_to_selection {
12816 if !processed_buffer_rows
12817 .entry(hunk.buffer_id)
12818 .or_default()
12819 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
12820 {
12821 continue;
12822 }
12823 hunks.push(hunk);
12824 }
12825 }
12826 }
12827
12828 hunks
12829}
12830
12831pub trait CollaborationHub {
12832 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
12833 fn user_participant_indices<'a>(
12834 &self,
12835 cx: &'a AppContext,
12836 ) -> &'a HashMap<u64, ParticipantIndex>;
12837 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
12838}
12839
12840impl CollaborationHub for Model<Project> {
12841 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
12842 self.read(cx).collaborators()
12843 }
12844
12845 fn user_participant_indices<'a>(
12846 &self,
12847 cx: &'a AppContext,
12848 ) -> &'a HashMap<u64, ParticipantIndex> {
12849 self.read(cx).user_store().read(cx).participant_indices()
12850 }
12851
12852 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
12853 let this = self.read(cx);
12854 let user_ids = this.collaborators().values().map(|c| c.user_id);
12855 this.user_store().read_with(cx, |user_store, cx| {
12856 user_store.participant_names(user_ids, cx)
12857 })
12858 }
12859}
12860
12861pub trait CompletionProvider {
12862 fn completions(
12863 &self,
12864 buffer: &Model<Buffer>,
12865 buffer_position: text::Anchor,
12866 trigger: CompletionContext,
12867 cx: &mut ViewContext<Editor>,
12868 ) -> Task<Result<Vec<Completion>>>;
12869
12870 fn resolve_completions(
12871 &self,
12872 buffer: Model<Buffer>,
12873 completion_indices: Vec<usize>,
12874 completions: Arc<RwLock<Box<[Completion]>>>,
12875 cx: &mut ViewContext<Editor>,
12876 ) -> Task<Result<bool>>;
12877
12878 fn apply_additional_edits_for_completion(
12879 &self,
12880 buffer: Model<Buffer>,
12881 completion: Completion,
12882 push_to_history: bool,
12883 cx: &mut ViewContext<Editor>,
12884 ) -> Task<Result<Option<language::Transaction>>>;
12885
12886 fn is_completion_trigger(
12887 &self,
12888 buffer: &Model<Buffer>,
12889 position: language::Anchor,
12890 text: &str,
12891 trigger_in_words: bool,
12892 cx: &mut ViewContext<Editor>,
12893 ) -> bool;
12894
12895 fn sort_completions(&self) -> bool {
12896 true
12897 }
12898}
12899
12900pub trait CodeActionProvider {
12901 fn code_actions(
12902 &self,
12903 buffer: &Model<Buffer>,
12904 range: Range<text::Anchor>,
12905 cx: &mut WindowContext,
12906 ) -> Task<Result<Vec<CodeAction>>>;
12907
12908 fn apply_code_action(
12909 &self,
12910 buffer_handle: Model<Buffer>,
12911 action: CodeAction,
12912 excerpt_id: ExcerptId,
12913 push_to_history: bool,
12914 cx: &mut WindowContext,
12915 ) -> Task<Result<ProjectTransaction>>;
12916}
12917
12918impl CodeActionProvider for Model<Project> {
12919 fn code_actions(
12920 &self,
12921 buffer: &Model<Buffer>,
12922 range: Range<text::Anchor>,
12923 cx: &mut WindowContext,
12924 ) -> Task<Result<Vec<CodeAction>>> {
12925 self.update(cx, |project, cx| project.code_actions(buffer, range, cx))
12926 }
12927
12928 fn apply_code_action(
12929 &self,
12930 buffer_handle: Model<Buffer>,
12931 action: CodeAction,
12932 _excerpt_id: ExcerptId,
12933 push_to_history: bool,
12934 cx: &mut WindowContext,
12935 ) -> Task<Result<ProjectTransaction>> {
12936 self.update(cx, |project, cx| {
12937 project.apply_code_action(buffer_handle, action, push_to_history, cx)
12938 })
12939 }
12940}
12941
12942fn snippet_completions(
12943 project: &Project,
12944 buffer: &Model<Buffer>,
12945 buffer_position: text::Anchor,
12946 cx: &mut AppContext,
12947) -> Vec<Completion> {
12948 let language = buffer.read(cx).language_at(buffer_position);
12949 let language_name = language.as_ref().map(|language| language.lsp_id());
12950 let snippet_store = project.snippets().read(cx);
12951 let snippets = snippet_store.snippets_for(language_name, cx);
12952
12953 if snippets.is_empty() {
12954 return vec![];
12955 }
12956 let snapshot = buffer.read(cx).text_snapshot();
12957 let chunks = snapshot.reversed_chunks_in_range(text::Anchor::MIN..buffer_position);
12958
12959 let mut lines = chunks.lines();
12960 let Some(line_at) = lines.next().filter(|line| !line.is_empty()) else {
12961 return vec![];
12962 };
12963
12964 let scope = language.map(|language| language.default_scope());
12965 let classifier = CharClassifier::new(scope).for_completion(true);
12966 let mut last_word = line_at
12967 .chars()
12968 .rev()
12969 .take_while(|c| classifier.is_word(*c))
12970 .collect::<String>();
12971 last_word = last_word.chars().rev().collect();
12972 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
12973 let to_lsp = |point: &text::Anchor| {
12974 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
12975 point_to_lsp(end)
12976 };
12977 let lsp_end = to_lsp(&buffer_position);
12978 snippets
12979 .into_iter()
12980 .filter_map(|snippet| {
12981 let matching_prefix = snippet
12982 .prefix
12983 .iter()
12984 .find(|prefix| prefix.starts_with(&last_word))?;
12985 let start = as_offset - last_word.len();
12986 let start = snapshot.anchor_before(start);
12987 let range = start..buffer_position;
12988 let lsp_start = to_lsp(&start);
12989 let lsp_range = lsp::Range {
12990 start: lsp_start,
12991 end: lsp_end,
12992 };
12993 Some(Completion {
12994 old_range: range,
12995 new_text: snippet.body.clone(),
12996 label: CodeLabel {
12997 text: matching_prefix.clone(),
12998 runs: vec![],
12999 filter_range: 0..matching_prefix.len(),
13000 },
13001 server_id: LanguageServerId(usize::MAX),
13002 documentation: snippet.description.clone().map(Documentation::SingleLine),
13003 lsp_completion: lsp::CompletionItem {
13004 label: snippet.prefix.first().unwrap().clone(),
13005 kind: Some(CompletionItemKind::SNIPPET),
13006 label_details: snippet.description.as_ref().map(|description| {
13007 lsp::CompletionItemLabelDetails {
13008 detail: Some(description.clone()),
13009 description: None,
13010 }
13011 }),
13012 insert_text_format: Some(InsertTextFormat::SNIPPET),
13013 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13014 lsp::InsertReplaceEdit {
13015 new_text: snippet.body.clone(),
13016 insert: lsp_range,
13017 replace: lsp_range,
13018 },
13019 )),
13020 filter_text: Some(snippet.body.clone()),
13021 sort_text: Some(char::MAX.to_string()),
13022 ..Default::default()
13023 },
13024 confirm: None,
13025 })
13026 })
13027 .collect()
13028}
13029
13030impl CompletionProvider for Model<Project> {
13031 fn completions(
13032 &self,
13033 buffer: &Model<Buffer>,
13034 buffer_position: text::Anchor,
13035 options: CompletionContext,
13036 cx: &mut ViewContext<Editor>,
13037 ) -> Task<Result<Vec<Completion>>> {
13038 self.update(cx, |project, cx| {
13039 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13040 let project_completions = project.completions(buffer, buffer_position, options, cx);
13041 cx.background_executor().spawn(async move {
13042 let mut completions = project_completions.await?;
13043 //let snippets = snippets.into_iter().;
13044 completions.extend(snippets);
13045 Ok(completions)
13046 })
13047 })
13048 }
13049
13050 fn resolve_completions(
13051 &self,
13052 buffer: Model<Buffer>,
13053 completion_indices: Vec<usize>,
13054 completions: Arc<RwLock<Box<[Completion]>>>,
13055 cx: &mut ViewContext<Editor>,
13056 ) -> Task<Result<bool>> {
13057 self.update(cx, |project, cx| {
13058 project.resolve_completions(buffer, completion_indices, completions, cx)
13059 })
13060 }
13061
13062 fn apply_additional_edits_for_completion(
13063 &self,
13064 buffer: Model<Buffer>,
13065 completion: Completion,
13066 push_to_history: bool,
13067 cx: &mut ViewContext<Editor>,
13068 ) -> Task<Result<Option<language::Transaction>>> {
13069 self.update(cx, |project, cx| {
13070 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13071 })
13072 }
13073
13074 fn is_completion_trigger(
13075 &self,
13076 buffer: &Model<Buffer>,
13077 position: language::Anchor,
13078 text: &str,
13079 trigger_in_words: bool,
13080 cx: &mut ViewContext<Editor>,
13081 ) -> bool {
13082 if !EditorSettings::get_global(cx).show_completions_on_input {
13083 return false;
13084 }
13085
13086 let mut chars = text.chars();
13087 let char = if let Some(char) = chars.next() {
13088 char
13089 } else {
13090 return false;
13091 };
13092 if chars.next().is_some() {
13093 return false;
13094 }
13095
13096 let buffer = buffer.read(cx);
13097 let classifier = buffer
13098 .snapshot()
13099 .char_classifier_at(position)
13100 .for_completion(true);
13101 if trigger_in_words && classifier.is_word(char) {
13102 return true;
13103 }
13104
13105 buffer
13106 .completion_triggers()
13107 .iter()
13108 .any(|string| string == text)
13109 }
13110}
13111
13112fn inlay_hint_settings(
13113 location: Anchor,
13114 snapshot: &MultiBufferSnapshot,
13115 cx: &mut ViewContext<'_, Editor>,
13116) -> InlayHintSettings {
13117 let file = snapshot.file_at(location);
13118 let language = snapshot.language_at(location);
13119 let settings = all_language_settings(file, cx);
13120 settings
13121 .language(language.map(|l| l.name()).as_ref())
13122 .inlay_hints
13123}
13124
13125fn consume_contiguous_rows(
13126 contiguous_row_selections: &mut Vec<Selection<Point>>,
13127 selection: &Selection<Point>,
13128 display_map: &DisplaySnapshot,
13129 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
13130) -> (MultiBufferRow, MultiBufferRow) {
13131 contiguous_row_selections.push(selection.clone());
13132 let start_row = MultiBufferRow(selection.start.row);
13133 let mut end_row = ending_row(selection, display_map);
13134
13135 while let Some(next_selection) = selections.peek() {
13136 if next_selection.start.row <= end_row.0 {
13137 end_row = ending_row(next_selection, display_map);
13138 contiguous_row_selections.push(selections.next().unwrap().clone());
13139 } else {
13140 break;
13141 }
13142 }
13143 (start_row, end_row)
13144}
13145
13146fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13147 if next_selection.end.column > 0 || next_selection.is_empty() {
13148 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13149 } else {
13150 MultiBufferRow(next_selection.end.row)
13151 }
13152}
13153
13154impl EditorSnapshot {
13155 pub fn remote_selections_in_range<'a>(
13156 &'a self,
13157 range: &'a Range<Anchor>,
13158 collaboration_hub: &dyn CollaborationHub,
13159 cx: &'a AppContext,
13160 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13161 let participant_names = collaboration_hub.user_names(cx);
13162 let participant_indices = collaboration_hub.user_participant_indices(cx);
13163 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13164 let collaborators_by_replica_id = collaborators_by_peer_id
13165 .iter()
13166 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13167 .collect::<HashMap<_, _>>();
13168 self.buffer_snapshot
13169 .selections_in_range(range, false)
13170 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13171 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13172 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13173 let user_name = participant_names.get(&collaborator.user_id).cloned();
13174 Some(RemoteSelection {
13175 replica_id,
13176 selection,
13177 cursor_shape,
13178 line_mode,
13179 participant_index,
13180 peer_id: collaborator.peer_id,
13181 user_name,
13182 })
13183 })
13184 }
13185
13186 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13187 self.display_snapshot.buffer_snapshot.language_at(position)
13188 }
13189
13190 pub fn is_focused(&self) -> bool {
13191 self.is_focused
13192 }
13193
13194 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13195 self.placeholder_text.as_ref()
13196 }
13197
13198 pub fn scroll_position(&self) -> gpui::Point<f32> {
13199 self.scroll_anchor.scroll_position(&self.display_snapshot)
13200 }
13201
13202 fn gutter_dimensions(
13203 &self,
13204 font_id: FontId,
13205 font_size: Pixels,
13206 em_width: Pixels,
13207 em_advance: Pixels,
13208 max_line_number_width: Pixels,
13209 cx: &AppContext,
13210 ) -> GutterDimensions {
13211 if !self.show_gutter {
13212 return GutterDimensions::default();
13213 }
13214 let descent = cx.text_system().descent(font_id, font_size);
13215
13216 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13217 matches!(
13218 ProjectSettings::get_global(cx).git.git_gutter,
13219 Some(GitGutterSetting::TrackedFiles)
13220 )
13221 });
13222 let gutter_settings = EditorSettings::get_global(cx).gutter;
13223 let show_line_numbers = self
13224 .show_line_numbers
13225 .unwrap_or(gutter_settings.line_numbers);
13226 let line_gutter_width = if show_line_numbers {
13227 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
13228 let min_width_for_number_on_gutter = em_advance * 4.0;
13229 max_line_number_width.max(min_width_for_number_on_gutter)
13230 } else {
13231 0.0.into()
13232 };
13233
13234 let show_code_actions = self
13235 .show_code_actions
13236 .unwrap_or(gutter_settings.code_actions);
13237
13238 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
13239
13240 let git_blame_entries_width =
13241 self.git_blame_gutter_max_author_length
13242 .map(|max_author_length| {
13243 // Length of the author name, but also space for the commit hash,
13244 // the spacing and the timestamp.
13245 let max_char_count = max_author_length
13246 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
13247 + 7 // length of commit sha
13248 + 14 // length of max relative timestamp ("60 minutes ago")
13249 + 4; // gaps and margins
13250
13251 em_advance * max_char_count
13252 });
13253
13254 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
13255 left_padding += if show_code_actions || show_runnables {
13256 em_width * 3.0
13257 } else if show_git_gutter && show_line_numbers {
13258 em_width * 2.0
13259 } else if show_git_gutter || show_line_numbers {
13260 em_width
13261 } else {
13262 px(0.)
13263 };
13264
13265 let right_padding = if gutter_settings.folds && show_line_numbers {
13266 em_width * 4.0
13267 } else if gutter_settings.folds {
13268 em_width * 3.0
13269 } else if show_line_numbers {
13270 em_width
13271 } else {
13272 px(0.)
13273 };
13274
13275 GutterDimensions {
13276 left_padding,
13277 right_padding,
13278 width: line_gutter_width + left_padding + right_padding,
13279 margin: -descent,
13280 git_blame_entries_width,
13281 }
13282 }
13283
13284 pub fn render_fold_toggle(
13285 &self,
13286 buffer_row: MultiBufferRow,
13287 row_contains_cursor: bool,
13288 editor: View<Editor>,
13289 cx: &mut WindowContext,
13290 ) -> Option<AnyElement> {
13291 let folded = self.is_line_folded(buffer_row);
13292
13293 if let Some(crease) = self
13294 .crease_snapshot
13295 .query_row(buffer_row, &self.buffer_snapshot)
13296 {
13297 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
13298 if folded {
13299 editor.update(cx, |editor, cx| {
13300 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
13301 });
13302 } else {
13303 editor.update(cx, |editor, cx| {
13304 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
13305 });
13306 }
13307 });
13308
13309 Some((crease.render_toggle)(
13310 buffer_row,
13311 folded,
13312 toggle_callback,
13313 cx,
13314 ))
13315 } else if folded
13316 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
13317 {
13318 Some(
13319 Disclosure::new(("indent-fold-indicator", buffer_row.0), !folded)
13320 .selected(folded)
13321 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
13322 if folded {
13323 this.unfold_at(&UnfoldAt { buffer_row }, cx);
13324 } else {
13325 this.fold_at(&FoldAt { buffer_row }, cx);
13326 }
13327 }))
13328 .into_any_element(),
13329 )
13330 } else {
13331 None
13332 }
13333 }
13334
13335 pub fn render_crease_trailer(
13336 &self,
13337 buffer_row: MultiBufferRow,
13338 cx: &mut WindowContext,
13339 ) -> Option<AnyElement> {
13340 let folded = self.is_line_folded(buffer_row);
13341 let crease = self
13342 .crease_snapshot
13343 .query_row(buffer_row, &self.buffer_snapshot)?;
13344 Some((crease.render_trailer)(buffer_row, folded, cx))
13345 }
13346}
13347
13348impl Deref for EditorSnapshot {
13349 type Target = DisplaySnapshot;
13350
13351 fn deref(&self) -> &Self::Target {
13352 &self.display_snapshot
13353 }
13354}
13355
13356#[derive(Clone, Debug, PartialEq, Eq)]
13357pub enum EditorEvent {
13358 InputIgnored {
13359 text: Arc<str>,
13360 },
13361 InputHandled {
13362 utf16_range_to_replace: Option<Range<isize>>,
13363 text: Arc<str>,
13364 },
13365 ExcerptsAdded {
13366 buffer: Model<Buffer>,
13367 predecessor: ExcerptId,
13368 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
13369 },
13370 ExcerptsRemoved {
13371 ids: Vec<ExcerptId>,
13372 },
13373 ExcerptsEdited {
13374 ids: Vec<ExcerptId>,
13375 },
13376 ExcerptsExpanded {
13377 ids: Vec<ExcerptId>,
13378 },
13379 BufferEdited,
13380 Edited {
13381 transaction_id: clock::Lamport,
13382 },
13383 Reparsed(BufferId),
13384 Focused,
13385 FocusedIn,
13386 Blurred,
13387 DirtyChanged,
13388 Saved,
13389 TitleChanged,
13390 DiffBaseChanged,
13391 SelectionsChanged {
13392 local: bool,
13393 },
13394 ScrollPositionChanged {
13395 local: bool,
13396 autoscroll: bool,
13397 },
13398 Closed,
13399 TransactionUndone {
13400 transaction_id: clock::Lamport,
13401 },
13402 TransactionBegun {
13403 transaction_id: clock::Lamport,
13404 },
13405 CursorShapeChanged,
13406}
13407
13408impl EventEmitter<EditorEvent> for Editor {}
13409
13410impl FocusableView for Editor {
13411 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
13412 self.focus_handle.clone()
13413 }
13414}
13415
13416impl Render for Editor {
13417 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
13418 let settings = ThemeSettings::get_global(cx);
13419
13420 let text_style = match self.mode {
13421 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
13422 color: cx.theme().colors().editor_foreground,
13423 font_family: settings.ui_font.family.clone(),
13424 font_features: settings.ui_font.features.clone(),
13425 font_fallbacks: settings.ui_font.fallbacks.clone(),
13426 font_size: rems(0.875).into(),
13427 font_weight: settings.ui_font.weight,
13428 line_height: relative(settings.buffer_line_height.value()),
13429 ..Default::default()
13430 },
13431 EditorMode::Full => TextStyle {
13432 color: cx.theme().colors().editor_foreground,
13433 font_family: settings.buffer_font.family.clone(),
13434 font_features: settings.buffer_font.features.clone(),
13435 font_fallbacks: settings.buffer_font.fallbacks.clone(),
13436 font_size: settings.buffer_font_size(cx).into(),
13437 font_weight: settings.buffer_font.weight,
13438 line_height: relative(settings.buffer_line_height.value()),
13439 ..Default::default()
13440 },
13441 };
13442
13443 let background = match self.mode {
13444 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
13445 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
13446 EditorMode::Full => cx.theme().colors().editor_background,
13447 };
13448
13449 EditorElement::new(
13450 cx.view(),
13451 EditorStyle {
13452 background,
13453 local_player: cx.theme().players().local(),
13454 text: text_style,
13455 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
13456 syntax: cx.theme().syntax().clone(),
13457 status: cx.theme().status().clone(),
13458 inlay_hints_style: make_inlay_hints_style(cx),
13459 suggestions_style: HighlightStyle {
13460 color: Some(cx.theme().status().predictive),
13461 ..HighlightStyle::default()
13462 },
13463 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
13464 },
13465 )
13466 }
13467}
13468
13469impl ViewInputHandler for Editor {
13470 fn text_for_range(
13471 &mut self,
13472 range_utf16: Range<usize>,
13473 cx: &mut ViewContext<Self>,
13474 ) -> Option<String> {
13475 Some(
13476 self.buffer
13477 .read(cx)
13478 .read(cx)
13479 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
13480 .collect(),
13481 )
13482 }
13483
13484 fn selected_text_range(
13485 &mut self,
13486 ignore_disabled_input: bool,
13487 cx: &mut ViewContext<Self>,
13488 ) -> Option<UTF16Selection> {
13489 // Prevent the IME menu from appearing when holding down an alphabetic key
13490 // while input is disabled.
13491 if !ignore_disabled_input && !self.input_enabled {
13492 return None;
13493 }
13494
13495 let selection = self.selections.newest::<OffsetUtf16>(cx);
13496 let range = selection.range();
13497
13498 Some(UTF16Selection {
13499 range: range.start.0..range.end.0,
13500 reversed: selection.reversed,
13501 })
13502 }
13503
13504 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
13505 let snapshot = self.buffer.read(cx).read(cx);
13506 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
13507 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
13508 }
13509
13510 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
13511 self.clear_highlights::<InputComposition>(cx);
13512 self.ime_transaction.take();
13513 }
13514
13515 fn replace_text_in_range(
13516 &mut self,
13517 range_utf16: Option<Range<usize>>,
13518 text: &str,
13519 cx: &mut ViewContext<Self>,
13520 ) {
13521 if !self.input_enabled {
13522 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13523 return;
13524 }
13525
13526 self.transact(cx, |this, cx| {
13527 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
13528 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13529 Some(this.selection_replacement_ranges(range_utf16, cx))
13530 } else {
13531 this.marked_text_ranges(cx)
13532 };
13533
13534 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
13535 let newest_selection_id = this.selections.newest_anchor().id;
13536 this.selections
13537 .all::<OffsetUtf16>(cx)
13538 .iter()
13539 .zip(ranges_to_replace.iter())
13540 .find_map(|(selection, range)| {
13541 if selection.id == newest_selection_id {
13542 Some(
13543 (range.start.0 as isize - selection.head().0 as isize)
13544 ..(range.end.0 as isize - selection.head().0 as isize),
13545 )
13546 } else {
13547 None
13548 }
13549 })
13550 });
13551
13552 cx.emit(EditorEvent::InputHandled {
13553 utf16_range_to_replace: range_to_replace,
13554 text: text.into(),
13555 });
13556
13557 if let Some(new_selected_ranges) = new_selected_ranges {
13558 this.change_selections(None, cx, |selections| {
13559 selections.select_ranges(new_selected_ranges)
13560 });
13561 this.backspace(&Default::default(), cx);
13562 }
13563
13564 this.handle_input(text, cx);
13565 });
13566
13567 if let Some(transaction) = self.ime_transaction {
13568 self.buffer.update(cx, |buffer, cx| {
13569 buffer.group_until_transaction(transaction, cx);
13570 });
13571 }
13572
13573 self.unmark_text(cx);
13574 }
13575
13576 fn replace_and_mark_text_in_range(
13577 &mut self,
13578 range_utf16: Option<Range<usize>>,
13579 text: &str,
13580 new_selected_range_utf16: Option<Range<usize>>,
13581 cx: &mut ViewContext<Self>,
13582 ) {
13583 if !self.input_enabled {
13584 return;
13585 }
13586
13587 let transaction = self.transact(cx, |this, cx| {
13588 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
13589 let snapshot = this.buffer.read(cx).read(cx);
13590 if let Some(relative_range_utf16) = range_utf16.as_ref() {
13591 for marked_range in &mut marked_ranges {
13592 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
13593 marked_range.start.0 += relative_range_utf16.start;
13594 marked_range.start =
13595 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
13596 marked_range.end =
13597 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
13598 }
13599 }
13600 Some(marked_ranges)
13601 } else if let Some(range_utf16) = range_utf16 {
13602 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
13603 Some(this.selection_replacement_ranges(range_utf16, cx))
13604 } else {
13605 None
13606 };
13607
13608 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
13609 let newest_selection_id = this.selections.newest_anchor().id;
13610 this.selections
13611 .all::<OffsetUtf16>(cx)
13612 .iter()
13613 .zip(ranges_to_replace.iter())
13614 .find_map(|(selection, range)| {
13615 if selection.id == newest_selection_id {
13616 Some(
13617 (range.start.0 as isize - selection.head().0 as isize)
13618 ..(range.end.0 as isize - selection.head().0 as isize),
13619 )
13620 } else {
13621 None
13622 }
13623 })
13624 });
13625
13626 cx.emit(EditorEvent::InputHandled {
13627 utf16_range_to_replace: range_to_replace,
13628 text: text.into(),
13629 });
13630
13631 if let Some(ranges) = ranges_to_replace {
13632 this.change_selections(None, cx, |s| s.select_ranges(ranges));
13633 }
13634
13635 let marked_ranges = {
13636 let snapshot = this.buffer.read(cx).read(cx);
13637 this.selections
13638 .disjoint_anchors()
13639 .iter()
13640 .map(|selection| {
13641 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
13642 })
13643 .collect::<Vec<_>>()
13644 };
13645
13646 if text.is_empty() {
13647 this.unmark_text(cx);
13648 } else {
13649 this.highlight_text::<InputComposition>(
13650 marked_ranges.clone(),
13651 HighlightStyle {
13652 underline: Some(UnderlineStyle {
13653 thickness: px(1.),
13654 color: None,
13655 wavy: false,
13656 }),
13657 ..Default::default()
13658 },
13659 cx,
13660 );
13661 }
13662
13663 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
13664 let use_autoclose = this.use_autoclose;
13665 let use_auto_surround = this.use_auto_surround;
13666 this.set_use_autoclose(false);
13667 this.set_use_auto_surround(false);
13668 this.handle_input(text, cx);
13669 this.set_use_autoclose(use_autoclose);
13670 this.set_use_auto_surround(use_auto_surround);
13671
13672 if let Some(new_selected_range) = new_selected_range_utf16 {
13673 let snapshot = this.buffer.read(cx).read(cx);
13674 let new_selected_ranges = marked_ranges
13675 .into_iter()
13676 .map(|marked_range| {
13677 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
13678 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
13679 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
13680 snapshot.clip_offset_utf16(new_start, Bias::Left)
13681 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
13682 })
13683 .collect::<Vec<_>>();
13684
13685 drop(snapshot);
13686 this.change_selections(None, cx, |selections| {
13687 selections.select_ranges(new_selected_ranges)
13688 });
13689 }
13690 });
13691
13692 self.ime_transaction = self.ime_transaction.or(transaction);
13693 if let Some(transaction) = self.ime_transaction {
13694 self.buffer.update(cx, |buffer, cx| {
13695 buffer.group_until_transaction(transaction, cx);
13696 });
13697 }
13698
13699 if self.text_highlights::<InputComposition>(cx).is_none() {
13700 self.ime_transaction.take();
13701 }
13702 }
13703
13704 fn bounds_for_range(
13705 &mut self,
13706 range_utf16: Range<usize>,
13707 element_bounds: gpui::Bounds<Pixels>,
13708 cx: &mut ViewContext<Self>,
13709 ) -> Option<gpui::Bounds<Pixels>> {
13710 let text_layout_details = self.text_layout_details(cx);
13711 let style = &text_layout_details.editor_style;
13712 let font_id = cx.text_system().resolve_font(&style.text.font());
13713 let font_size = style.text.font_size.to_pixels(cx.rem_size());
13714 let line_height = style.text.line_height_in_pixels(cx.rem_size());
13715
13716 let em_width = cx
13717 .text_system()
13718 .typographic_bounds(font_id, font_size, 'm')
13719 .unwrap()
13720 .size
13721 .width;
13722
13723 let snapshot = self.snapshot(cx);
13724 let scroll_position = snapshot.scroll_position();
13725 let scroll_left = scroll_position.x * em_width;
13726
13727 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
13728 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
13729 + self.gutter_dimensions.width;
13730 let y = line_height * (start.row().as_f32() - scroll_position.y);
13731
13732 Some(Bounds {
13733 origin: element_bounds.origin + point(x, y),
13734 size: size(em_width, line_height),
13735 })
13736 }
13737}
13738
13739trait SelectionExt {
13740 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
13741 fn spanned_rows(
13742 &self,
13743 include_end_if_at_line_start: bool,
13744 map: &DisplaySnapshot,
13745 ) -> Range<MultiBufferRow>;
13746}
13747
13748impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
13749 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
13750 let start = self
13751 .start
13752 .to_point(&map.buffer_snapshot)
13753 .to_display_point(map);
13754 let end = self
13755 .end
13756 .to_point(&map.buffer_snapshot)
13757 .to_display_point(map);
13758 if self.reversed {
13759 end..start
13760 } else {
13761 start..end
13762 }
13763 }
13764
13765 fn spanned_rows(
13766 &self,
13767 include_end_if_at_line_start: bool,
13768 map: &DisplaySnapshot,
13769 ) -> Range<MultiBufferRow> {
13770 let start = self.start.to_point(&map.buffer_snapshot);
13771 let mut end = self.end.to_point(&map.buffer_snapshot);
13772 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
13773 end.row -= 1;
13774 }
13775
13776 let buffer_start = map.prev_line_boundary(start).0;
13777 let buffer_end = map.next_line_boundary(end).0;
13778 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
13779 }
13780}
13781
13782impl<T: InvalidationRegion> InvalidationStack<T> {
13783 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
13784 where
13785 S: Clone + ToOffset,
13786 {
13787 while let Some(region) = self.last() {
13788 let all_selections_inside_invalidation_ranges =
13789 if selections.len() == region.ranges().len() {
13790 selections
13791 .iter()
13792 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
13793 .all(|(selection, invalidation_range)| {
13794 let head = selection.head().to_offset(buffer);
13795 invalidation_range.start <= head && invalidation_range.end >= head
13796 })
13797 } else {
13798 false
13799 };
13800
13801 if all_selections_inside_invalidation_ranges {
13802 break;
13803 } else {
13804 self.pop();
13805 }
13806 }
13807 }
13808}
13809
13810impl<T> Default for InvalidationStack<T> {
13811 fn default() -> Self {
13812 Self(Default::default())
13813 }
13814}
13815
13816impl<T> Deref for InvalidationStack<T> {
13817 type Target = Vec<T>;
13818
13819 fn deref(&self) -> &Self::Target {
13820 &self.0
13821 }
13822}
13823
13824impl<T> DerefMut for InvalidationStack<T> {
13825 fn deref_mut(&mut self) -> &mut Self::Target {
13826 &mut self.0
13827 }
13828}
13829
13830impl InvalidationRegion for SnippetState {
13831 fn ranges(&self) -> &[Range<Anchor>] {
13832 &self.ranges[self.active_index]
13833 }
13834}
13835
13836pub fn diagnostic_block_renderer(
13837 diagnostic: Diagnostic,
13838 max_message_rows: Option<u8>,
13839 allow_closing: bool,
13840 _is_valid: bool,
13841) -> RenderBlock {
13842 let (text_without_backticks, code_ranges) =
13843 highlight_diagnostic_message(&diagnostic, max_message_rows);
13844
13845 Box::new(move |cx: &mut BlockContext| {
13846 let group_id: SharedString = cx.block_id.to_string().into();
13847
13848 let mut text_style = cx.text_style().clone();
13849 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
13850 let theme_settings = ThemeSettings::get_global(cx);
13851 text_style.font_family = theme_settings.buffer_font.family.clone();
13852 text_style.font_style = theme_settings.buffer_font.style;
13853 text_style.font_features = theme_settings.buffer_font.features.clone();
13854 text_style.font_weight = theme_settings.buffer_font.weight;
13855
13856 let multi_line_diagnostic = diagnostic.message.contains('\n');
13857
13858 let buttons = |diagnostic: &Diagnostic, block_id: BlockId| {
13859 if multi_line_diagnostic {
13860 v_flex()
13861 } else {
13862 h_flex()
13863 }
13864 .when(allow_closing, |div| {
13865 div.children(diagnostic.is_primary.then(|| {
13866 IconButton::new(("close-block", EntityId::from(block_id)), IconName::XCircle)
13867 .icon_color(Color::Muted)
13868 .size(ButtonSize::Compact)
13869 .style(ButtonStyle::Transparent)
13870 .visible_on_hover(group_id.clone())
13871 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
13872 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
13873 }))
13874 })
13875 .child(
13876 IconButton::new(("copy-block", EntityId::from(block_id)), IconName::Copy)
13877 .icon_color(Color::Muted)
13878 .size(ButtonSize::Compact)
13879 .style(ButtonStyle::Transparent)
13880 .visible_on_hover(group_id.clone())
13881 .on_click({
13882 let message = diagnostic.message.clone();
13883 move |_click, cx| {
13884 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
13885 }
13886 })
13887 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
13888 )
13889 };
13890
13891 let icon_size = buttons(&diagnostic, cx.block_id)
13892 .into_any_element()
13893 .layout_as_root(AvailableSpace::min_size(), cx);
13894
13895 h_flex()
13896 .id(cx.block_id)
13897 .group(group_id.clone())
13898 .relative()
13899 .size_full()
13900 .pl(cx.gutter_dimensions.width)
13901 .w(cx.max_width + cx.gutter_dimensions.width)
13902 .child(
13903 div()
13904 .flex()
13905 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
13906 .flex_shrink(),
13907 )
13908 .child(buttons(&diagnostic, cx.block_id))
13909 .child(div().flex().flex_shrink_0().child(
13910 StyledText::new(text_without_backticks.clone()).with_highlights(
13911 &text_style,
13912 code_ranges.iter().map(|range| {
13913 (
13914 range.clone(),
13915 HighlightStyle {
13916 font_weight: Some(FontWeight::BOLD),
13917 ..Default::default()
13918 },
13919 )
13920 }),
13921 ),
13922 ))
13923 .into_any_element()
13924 })
13925}
13926
13927pub fn highlight_diagnostic_message(
13928 diagnostic: &Diagnostic,
13929 mut max_message_rows: Option<u8>,
13930) -> (SharedString, Vec<Range<usize>>) {
13931 let mut text_without_backticks = String::new();
13932 let mut code_ranges = Vec::new();
13933
13934 if let Some(source) = &diagnostic.source {
13935 text_without_backticks.push_str(source);
13936 code_ranges.push(0..source.len());
13937 text_without_backticks.push_str(": ");
13938 }
13939
13940 let mut prev_offset = 0;
13941 let mut in_code_block = false;
13942 let has_row_limit = max_message_rows.is_some();
13943 let mut newline_indices = diagnostic
13944 .message
13945 .match_indices('\n')
13946 .filter(|_| has_row_limit)
13947 .map(|(ix, _)| ix)
13948 .fuse()
13949 .peekable();
13950
13951 for (quote_ix, _) in diagnostic
13952 .message
13953 .match_indices('`')
13954 .chain([(diagnostic.message.len(), "")])
13955 {
13956 let mut first_newline_ix = None;
13957 let mut last_newline_ix = None;
13958 while let Some(newline_ix) = newline_indices.peek() {
13959 if *newline_ix < quote_ix {
13960 if first_newline_ix.is_none() {
13961 first_newline_ix = Some(*newline_ix);
13962 }
13963 last_newline_ix = Some(*newline_ix);
13964
13965 if let Some(rows_left) = &mut max_message_rows {
13966 if *rows_left == 0 {
13967 break;
13968 } else {
13969 *rows_left -= 1;
13970 }
13971 }
13972 let _ = newline_indices.next();
13973 } else {
13974 break;
13975 }
13976 }
13977 let prev_len = text_without_backticks.len();
13978 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
13979 text_without_backticks.push_str(new_text);
13980 if in_code_block {
13981 code_ranges.push(prev_len..text_without_backticks.len());
13982 }
13983 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
13984 in_code_block = !in_code_block;
13985 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
13986 text_without_backticks.push_str("...");
13987 break;
13988 }
13989 }
13990
13991 (text_without_backticks.into(), code_ranges)
13992}
13993
13994fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
13995 match severity {
13996 DiagnosticSeverity::ERROR => colors.error,
13997 DiagnosticSeverity::WARNING => colors.warning,
13998 DiagnosticSeverity::INFORMATION => colors.info,
13999 DiagnosticSeverity::HINT => colors.info,
14000 _ => colors.ignored,
14001 }
14002}
14003
14004pub fn styled_runs_for_code_label<'a>(
14005 label: &'a CodeLabel,
14006 syntax_theme: &'a theme::SyntaxTheme,
14007) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14008 let fade_out = HighlightStyle {
14009 fade_out: Some(0.35),
14010 ..Default::default()
14011 };
14012
14013 let mut prev_end = label.filter_range.end;
14014 label
14015 .runs
14016 .iter()
14017 .enumerate()
14018 .flat_map(move |(ix, (range, highlight_id))| {
14019 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14020 style
14021 } else {
14022 return Default::default();
14023 };
14024 let mut muted_style = style;
14025 muted_style.highlight(fade_out);
14026
14027 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14028 if range.start >= label.filter_range.end {
14029 if range.start > prev_end {
14030 runs.push((prev_end..range.start, fade_out));
14031 }
14032 runs.push((range.clone(), muted_style));
14033 } else if range.end <= label.filter_range.end {
14034 runs.push((range.clone(), style));
14035 } else {
14036 runs.push((range.start..label.filter_range.end, style));
14037 runs.push((label.filter_range.end..range.end, muted_style));
14038 }
14039 prev_end = cmp::max(prev_end, range.end);
14040
14041 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14042 runs.push((prev_end..label.text.len(), fade_out));
14043 }
14044
14045 runs
14046 })
14047}
14048
14049pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14050 let mut prev_index = 0;
14051 let mut prev_codepoint: Option<char> = None;
14052 text.char_indices()
14053 .chain([(text.len(), '\0')])
14054 .filter_map(move |(index, codepoint)| {
14055 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14056 let is_boundary = index == text.len()
14057 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14058 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14059 if is_boundary {
14060 let chunk = &text[prev_index..index];
14061 prev_index = index;
14062 Some(chunk)
14063 } else {
14064 None
14065 }
14066 })
14067}
14068
14069pub trait RangeToAnchorExt: Sized {
14070 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14071
14072 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14073 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14074 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14075 }
14076}
14077
14078impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14079 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14080 let start_offset = self.start.to_offset(snapshot);
14081 let end_offset = self.end.to_offset(snapshot);
14082 if start_offset == end_offset {
14083 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14084 } else {
14085 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14086 }
14087 }
14088}
14089
14090pub trait RowExt {
14091 fn as_f32(&self) -> f32;
14092
14093 fn next_row(&self) -> Self;
14094
14095 fn previous_row(&self) -> Self;
14096
14097 fn minus(&self, other: Self) -> u32;
14098}
14099
14100impl RowExt for DisplayRow {
14101 fn as_f32(&self) -> f32 {
14102 self.0 as f32
14103 }
14104
14105 fn next_row(&self) -> Self {
14106 Self(self.0 + 1)
14107 }
14108
14109 fn previous_row(&self) -> Self {
14110 Self(self.0.saturating_sub(1))
14111 }
14112
14113 fn minus(&self, other: Self) -> u32 {
14114 self.0 - other.0
14115 }
14116}
14117
14118impl RowExt for MultiBufferRow {
14119 fn as_f32(&self) -> f32 {
14120 self.0 as f32
14121 }
14122
14123 fn next_row(&self) -> Self {
14124 Self(self.0 + 1)
14125 }
14126
14127 fn previous_row(&self) -> Self {
14128 Self(self.0.saturating_sub(1))
14129 }
14130
14131 fn minus(&self, other: Self) -> u32 {
14132 self.0 - other.0
14133 }
14134}
14135
14136trait RowRangeExt {
14137 type Row;
14138
14139 fn len(&self) -> usize;
14140
14141 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14142}
14143
14144impl RowRangeExt for Range<MultiBufferRow> {
14145 type Row = MultiBufferRow;
14146
14147 fn len(&self) -> usize {
14148 (self.end.0 - self.start.0) as usize
14149 }
14150
14151 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
14152 (self.start.0..self.end.0).map(MultiBufferRow)
14153 }
14154}
14155
14156impl RowRangeExt for Range<DisplayRow> {
14157 type Row = DisplayRow;
14158
14159 fn len(&self) -> usize {
14160 (self.end.0 - self.start.0) as usize
14161 }
14162
14163 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
14164 (self.start.0..self.end.0).map(DisplayRow)
14165 }
14166}
14167
14168fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
14169 if hunk.diff_base_byte_range.is_empty() {
14170 DiffHunkStatus::Added
14171 } else if hunk.row_range.is_empty() {
14172 DiffHunkStatus::Removed
14173 } else {
14174 DiffHunkStatus::Modified
14175 }
14176}
14177
14178/// If select range has more than one line, we
14179/// just point the cursor to range.start.
14180fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
14181 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
14182 range
14183 } else {
14184 range.start..range.start
14185 }
14186}