1use crate::{
2 ActiveDiagnostic, BlockId, CURSORS_VISIBLE_FOR, ChunkRendererContext, ChunkReplacement,
3 CodeActionSource, ColumnarMode, ConflictsOurs, ConflictsOursMarker, ConflictsOuter,
4 ConflictsTheirs, ConflictsTheirsMarker, ContextMenuPlacement, CursorShape, CustomBlockId,
5 DisplayDiffHunk, DisplayPoint, DisplayRow, DocumentHighlightRead, DocumentHighlightWrite,
6 EditDisplayMode, Editor, EditorMode, EditorSettings, EditorSnapshot, EditorStyle,
7 FILE_HEADER_HEIGHT, FocusedBlock, GutterDimensions, HalfPageDown, HalfPageUp, HandleInput,
8 HoveredCursor, InlayHintRefreshReason, InlineCompletion, JumpData, LineDown, LineHighlight,
9 LineUp, MAX_LINE_LEN, MINIMAP_FONT_SIZE, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT, OpenExcerpts,
10 PageDown, PageUp, PhantomBreakpointIndicator, Point, RowExt, RowRangeExt, SelectPhase,
11 SelectedTextHighlight, Selection, SelectionDragState, SoftWrap, StickyHeaderExcerpt, ToPoint,
12 ToggleFold,
13 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
14 display_map::{
15 Block, BlockContext, BlockStyle, DisplaySnapshot, EditorMargins, FoldId, HighlightedChunk,
16 ToDisplayPoint,
17 },
18 editor_settings::{
19 CurrentLineHighlight, DocumentColorsRenderMode, DoubleClickInMultibuffer, MinimapThumb,
20 MinimapThumbBorder, ScrollBeyondLastLine, ScrollbarAxes, ScrollbarDiagnostics, ShowMinimap,
21 ShowScrollbar,
22 },
23 git::blame::{BlameRenderer, GitBlame, GlobalBlameRenderer},
24 hover_popover::{
25 self, HOVER_POPOVER_GAP, MIN_POPOVER_CHARACTER_WIDTH, MIN_POPOVER_LINE_HEIGHT,
26 POPOVER_RIGHT_OFFSET, hover_at,
27 },
28 inlay_hint_settings,
29 items::BufferSearchHighlights,
30 mouse_context_menu::{self, MenuPosition},
31 scroll::{ActiveScrollbarState, ScrollbarThumbState, scroll_amount::ScrollAmount},
32};
33use buffer_diff::{DiffHunkStatus, DiffHunkStatusKind};
34use collections::{BTreeMap, HashMap};
35use feature_flags::FeatureFlagAppExt;
36use file_icons::FileIcons;
37use git::{
38 Oid,
39 blame::{BlameEntry, ParsedCommitMessage},
40 status::FileStatus,
41};
42use gpui::{
43 Action, Along, AnyElement, App, AppContext, AvailableSpace, Axis as ScrollbarAxis, BorderStyle,
44 Bounds, ClickEvent, ContentMask, Context, Corner, Corners, CursorStyle, DispatchPhase, Edges,
45 Element, ElementInputHandler, Entity, Focusable as _, FontId, GlobalElementId, Hitbox,
46 HitboxBehavior, Hsla, InteractiveElement, IntoElement, IsZero, Keystroke, Length,
47 ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad,
48 ParentElement, Pixels, ScrollDelta, ScrollHandle, ScrollWheelEvent, ShapedLine, SharedString,
49 Size, StatefulInteractiveElement, Style, Styled, TextRun, TextStyleRefinement, WeakEntity,
50 Window, anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, point, px,
51 quad, relative, size, solid_background, transparent_black,
52};
53use itertools::Itertools;
54use language::language_settings::{
55 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings, ShowWhitespaceSetting,
56};
57use markdown::Markdown;
58use multi_buffer::{
59 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, ExpandInfo, MultiBufferPoint,
60 MultiBufferRow, RowInfo,
61};
62
63use project::{
64 ProjectPath,
65 debugger::breakpoint_store::{Breakpoint, BreakpointSessionState},
66 project_settings::{GitGutterSetting, GitHunkStyleSetting, ProjectSettings},
67};
68use settings::Settings;
69use smallvec::{SmallVec, smallvec};
70use std::{
71 any::TypeId,
72 borrow::Cow,
73 cmp::{self, Ordering},
74 fmt::{self, Write},
75 iter, mem,
76 ops::{Deref, Range},
77 rc::Rc,
78 sync::Arc,
79 time::{Duration, Instant},
80};
81use sum_tree::Bias;
82use text::{BufferId, SelectionGoal};
83use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
84use ui::{ButtonLike, KeyBinding, POPOVER_Y_PADDING, Tooltip, h_flex, prelude::*};
85use unicode_segmentation::UnicodeSegmentation;
86use util::post_inc;
87use util::{RangeExt, ResultExt, debug_panic};
88use workspace::{CollaboratorId, Workspace, item::Item, notifications::NotifyTaskExt};
89
90const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
91const SELECTION_DRAG_DELAY: Duration = Duration::from_millis(300);
92
93/// Determines what kinds of highlights should be applied to a lines background.
94#[derive(Clone, Copy, Default)]
95struct LineHighlightSpec {
96 selection: bool,
97 breakpoint: bool,
98 _active_stack_frame: bool,
99}
100
101#[derive(Debug)]
102struct SelectionLayout {
103 head: DisplayPoint,
104 cursor_shape: CursorShape,
105 is_newest: bool,
106 is_local: bool,
107 range: Range<DisplayPoint>,
108 active_rows: Range<DisplayRow>,
109 user_name: Option<SharedString>,
110}
111
112struct InlineBlameLayout {
113 element: AnyElement,
114 bounds: Bounds<Pixels>,
115 entry: BlameEntry,
116}
117
118impl SelectionLayout {
119 fn new<T: ToPoint + ToDisplayPoint + Clone>(
120 selection: Selection<T>,
121 line_mode: bool,
122 cursor_shape: CursorShape,
123 map: &DisplaySnapshot,
124 is_newest: bool,
125 is_local: bool,
126 user_name: Option<SharedString>,
127 ) -> Self {
128 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
129 let display_selection = point_selection.map(|p| p.to_display_point(map));
130 let mut range = display_selection.range();
131 let mut head = display_selection.head();
132 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
133 ..map.next_line_boundary(point_selection.end).1.row();
134
135 // vim visual line mode
136 if line_mode {
137 let point_range = map.expand_to_line(point_selection.range());
138 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
139 }
140
141 // any vim visual mode (including line mode)
142 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
143 && !range.is_empty()
144 && !selection.reversed
145 {
146 if head.column() > 0 {
147 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
148 } else if head.row().0 > 0 && head != map.max_point() {
149 head = map.clip_point(
150 DisplayPoint::new(
151 head.row().previous_row(),
152 map.line_len(head.row().previous_row()),
153 ),
154 Bias::Left,
155 );
156 // updating range.end is a no-op unless you're cursor is
157 // on the newline containing a multi-buffer divider
158 // in which case the clip_point may have moved the head up
159 // an additional row.
160 range.end = DisplayPoint::new(head.row().next_row(), 0);
161 active_rows.end = head.row();
162 }
163 }
164
165 Self {
166 head,
167 cursor_shape,
168 is_newest,
169 is_local,
170 range,
171 active_rows,
172 user_name,
173 }
174 }
175}
176
177pub struct EditorElement {
178 editor: Entity<Editor>,
179 style: EditorStyle,
180}
181
182type DisplayRowDelta = u32;
183
184impl EditorElement {
185 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
186
187 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
188 Self {
189 editor: editor.clone(),
190 style,
191 }
192 }
193
194 fn register_actions(&self, window: &mut Window, cx: &mut App) {
195 let editor = &self.editor;
196 editor.update(cx, |editor, cx| {
197 for action in editor.editor_actions.borrow().values() {
198 (action)(editor, window, cx)
199 }
200 });
201
202 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
203 crate::clangd_ext::apply_related_actions(editor, window, cx);
204
205 register_action(editor, window, Editor::open_context_menu);
206 register_action(editor, window, Editor::move_left);
207 register_action(editor, window, Editor::move_right);
208 register_action(editor, window, Editor::move_down);
209 register_action(editor, window, Editor::move_down_by_lines);
210 register_action(editor, window, Editor::select_down_by_lines);
211 register_action(editor, window, Editor::move_up);
212 register_action(editor, window, Editor::move_up_by_lines);
213 register_action(editor, window, Editor::select_up_by_lines);
214 register_action(editor, window, Editor::select_page_down);
215 register_action(editor, window, Editor::select_page_up);
216 register_action(editor, window, Editor::cancel);
217 register_action(editor, window, Editor::newline);
218 register_action(editor, window, Editor::newline_above);
219 register_action(editor, window, Editor::newline_below);
220 register_action(editor, window, Editor::backspace);
221 register_action(editor, window, Editor::delete);
222 register_action(editor, window, Editor::tab);
223 register_action(editor, window, Editor::backtab);
224 register_action(editor, window, Editor::indent);
225 register_action(editor, window, Editor::outdent);
226 register_action(editor, window, Editor::autoindent);
227 register_action(editor, window, Editor::delete_line);
228 register_action(editor, window, Editor::join_lines);
229 register_action(editor, window, Editor::sort_lines_case_sensitive);
230 register_action(editor, window, Editor::sort_lines_case_insensitive);
231 register_action(editor, window, Editor::reverse_lines);
232 register_action(editor, window, Editor::shuffle_lines);
233 register_action(editor, window, Editor::toggle_case);
234 register_action(editor, window, Editor::convert_to_upper_case);
235 register_action(editor, window, Editor::convert_to_lower_case);
236 register_action(editor, window, Editor::convert_to_title_case);
237 register_action(editor, window, Editor::convert_to_snake_case);
238 register_action(editor, window, Editor::convert_to_kebab_case);
239 register_action(editor, window, Editor::convert_to_upper_camel_case);
240 register_action(editor, window, Editor::convert_to_lower_camel_case);
241 register_action(editor, window, Editor::convert_to_opposite_case);
242 register_action(editor, window, Editor::convert_to_rot13);
243 register_action(editor, window, Editor::convert_to_rot47);
244 register_action(editor, window, Editor::delete_to_previous_word_start);
245 register_action(editor, window, Editor::delete_to_previous_subword_start);
246 register_action(editor, window, Editor::delete_to_next_word_end);
247 register_action(editor, window, Editor::delete_to_next_subword_end);
248 register_action(editor, window, Editor::delete_to_beginning_of_line);
249 register_action(editor, window, Editor::delete_to_end_of_line);
250 register_action(editor, window, Editor::cut_to_end_of_line);
251 register_action(editor, window, Editor::duplicate_line_up);
252 register_action(editor, window, Editor::duplicate_line_down);
253 register_action(editor, window, Editor::duplicate_selection);
254 register_action(editor, window, Editor::move_line_up);
255 register_action(editor, window, Editor::move_line_down);
256 register_action(editor, window, Editor::transpose);
257 register_action(editor, window, Editor::rewrap);
258 register_action(editor, window, Editor::cut);
259 register_action(editor, window, Editor::kill_ring_cut);
260 register_action(editor, window, Editor::kill_ring_yank);
261 register_action(editor, window, Editor::copy);
262 register_action(editor, window, Editor::copy_and_trim);
263 register_action(editor, window, Editor::paste);
264 register_action(editor, window, Editor::undo);
265 register_action(editor, window, Editor::redo);
266 register_action(editor, window, Editor::move_page_up);
267 register_action(editor, window, Editor::move_page_down);
268 register_action(editor, window, Editor::next_screen);
269 register_action(editor, window, Editor::scroll_cursor_top);
270 register_action(editor, window, Editor::scroll_cursor_center);
271 register_action(editor, window, Editor::scroll_cursor_bottom);
272 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
273 register_action(editor, window, |editor, _: &LineDown, window, cx| {
274 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
275 });
276 register_action(editor, window, |editor, _: &LineUp, window, cx| {
277 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
278 });
279 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
280 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
281 });
282 register_action(
283 editor,
284 window,
285 |editor, HandleInput(text): &HandleInput, window, cx| {
286 if text.is_empty() {
287 return;
288 }
289 editor.handle_input(text, window, cx);
290 },
291 );
292 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
293 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
294 });
295 register_action(editor, window, |editor, _: &PageDown, window, cx| {
296 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
297 });
298 register_action(editor, window, |editor, _: &PageUp, window, cx| {
299 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
300 });
301 register_action(editor, window, Editor::move_to_previous_word_start);
302 register_action(editor, window, Editor::move_to_previous_subword_start);
303 register_action(editor, window, Editor::move_to_next_word_end);
304 register_action(editor, window, Editor::move_to_next_subword_end);
305 register_action(editor, window, Editor::move_to_beginning_of_line);
306 register_action(editor, window, Editor::move_to_end_of_line);
307 register_action(editor, window, Editor::move_to_start_of_paragraph);
308 register_action(editor, window, Editor::move_to_end_of_paragraph);
309 register_action(editor, window, Editor::move_to_beginning);
310 register_action(editor, window, Editor::move_to_end);
311 register_action(editor, window, Editor::move_to_start_of_excerpt);
312 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
313 register_action(editor, window, Editor::move_to_end_of_excerpt);
314 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
315 register_action(editor, window, Editor::select_up);
316 register_action(editor, window, Editor::select_down);
317 register_action(editor, window, Editor::select_left);
318 register_action(editor, window, Editor::select_right);
319 register_action(editor, window, Editor::select_to_previous_word_start);
320 register_action(editor, window, Editor::select_to_previous_subword_start);
321 register_action(editor, window, Editor::select_to_next_word_end);
322 register_action(editor, window, Editor::select_to_next_subword_end);
323 register_action(editor, window, Editor::select_to_beginning_of_line);
324 register_action(editor, window, Editor::select_to_end_of_line);
325 register_action(editor, window, Editor::select_to_start_of_paragraph);
326 register_action(editor, window, Editor::select_to_end_of_paragraph);
327 register_action(editor, window, Editor::select_to_start_of_excerpt);
328 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
329 register_action(editor, window, Editor::select_to_end_of_excerpt);
330 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
331 register_action(editor, window, Editor::select_to_beginning);
332 register_action(editor, window, Editor::select_to_end);
333 register_action(editor, window, Editor::select_all);
334 register_action(editor, window, |editor, action, window, cx| {
335 editor.select_all_matches(action, window, cx).log_err();
336 });
337 register_action(editor, window, Editor::select_line);
338 register_action(editor, window, Editor::split_selection_into_lines);
339 register_action(editor, window, Editor::add_selection_above);
340 register_action(editor, window, Editor::add_selection_below);
341 register_action(editor, window, |editor, action, window, cx| {
342 editor.select_next(action, window, cx).log_err();
343 });
344 register_action(editor, window, |editor, action, window, cx| {
345 editor.select_previous(action, window, cx).log_err();
346 });
347 register_action(editor, window, |editor, action, window, cx| {
348 editor.find_next_match(action, window, cx).log_err();
349 });
350 register_action(editor, window, |editor, action, window, cx| {
351 editor.find_previous_match(action, window, cx).log_err();
352 });
353 register_action(editor, window, Editor::toggle_comments);
354 register_action(editor, window, Editor::select_larger_syntax_node);
355 register_action(editor, window, Editor::select_smaller_syntax_node);
356 register_action(editor, window, Editor::select_enclosing_symbol);
357 register_action(editor, window, Editor::move_to_enclosing_bracket);
358 register_action(editor, window, Editor::undo_selection);
359 register_action(editor, window, Editor::redo_selection);
360 if !editor.read(cx).is_singleton(cx) {
361 register_action(editor, window, Editor::expand_excerpts);
362 register_action(editor, window, Editor::expand_excerpts_up);
363 register_action(editor, window, Editor::expand_excerpts_down);
364 }
365 register_action(editor, window, Editor::go_to_diagnostic);
366 register_action(editor, window, Editor::go_to_prev_diagnostic);
367 register_action(editor, window, Editor::go_to_next_hunk);
368 register_action(editor, window, Editor::go_to_prev_hunk);
369 register_action(editor, window, |editor, action, window, cx| {
370 editor
371 .go_to_definition(action, window, cx)
372 .detach_and_log_err(cx);
373 });
374 register_action(editor, window, |editor, action, window, cx| {
375 editor
376 .go_to_definition_split(action, window, cx)
377 .detach_and_log_err(cx);
378 });
379 register_action(editor, window, |editor, action, window, cx| {
380 editor
381 .go_to_declaration(action, window, cx)
382 .detach_and_log_err(cx);
383 });
384 register_action(editor, window, |editor, action, window, cx| {
385 editor
386 .go_to_declaration_split(action, window, cx)
387 .detach_and_log_err(cx);
388 });
389 register_action(editor, window, |editor, action, window, cx| {
390 editor
391 .go_to_implementation(action, window, cx)
392 .detach_and_log_err(cx);
393 });
394 register_action(editor, window, |editor, action, window, cx| {
395 editor
396 .go_to_implementation_split(action, window, cx)
397 .detach_and_log_err(cx);
398 });
399 register_action(editor, window, |editor, action, window, cx| {
400 editor
401 .go_to_type_definition(action, window, cx)
402 .detach_and_log_err(cx);
403 });
404 register_action(editor, window, |editor, action, window, cx| {
405 editor
406 .go_to_type_definition_split(action, window, cx)
407 .detach_and_log_err(cx);
408 });
409 register_action(editor, window, Editor::open_url);
410 register_action(editor, window, Editor::open_selected_filename);
411 register_action(editor, window, Editor::fold);
412 register_action(editor, window, Editor::fold_at_level);
413 register_action(editor, window, Editor::fold_all);
414 register_action(editor, window, Editor::fold_function_bodies);
415 register_action(editor, window, Editor::fold_recursive);
416 register_action(editor, window, Editor::toggle_fold);
417 register_action(editor, window, Editor::toggle_fold_recursive);
418 register_action(editor, window, Editor::unfold_lines);
419 register_action(editor, window, Editor::unfold_recursive);
420 register_action(editor, window, Editor::unfold_all);
421 register_action(editor, window, Editor::fold_selected_ranges);
422 register_action(editor, window, Editor::set_mark);
423 register_action(editor, window, Editor::swap_selection_ends);
424 register_action(editor, window, Editor::show_completions);
425 register_action(editor, window, Editor::show_word_completions);
426 register_action(editor, window, Editor::toggle_code_actions);
427 register_action(editor, window, Editor::open_excerpts);
428 register_action(editor, window, Editor::open_excerpts_in_split);
429 register_action(editor, window, Editor::open_proposed_changes_editor);
430 register_action(editor, window, Editor::toggle_soft_wrap);
431 register_action(editor, window, Editor::toggle_tab_bar);
432 register_action(editor, window, Editor::toggle_line_numbers);
433 register_action(editor, window, Editor::toggle_relative_line_numbers);
434 register_action(editor, window, Editor::toggle_indent_guides);
435 register_action(editor, window, Editor::toggle_inlay_hints);
436 register_action(editor, window, Editor::toggle_edit_predictions);
437 if editor.read(cx).diagnostics_enabled() {
438 register_action(editor, window, Editor::toggle_diagnostics);
439 }
440 if editor.read(cx).inline_diagnostics_enabled() {
441 register_action(editor, window, Editor::toggle_inline_diagnostics);
442 }
443 if editor.read(cx).supports_minimap(cx) {
444 register_action(editor, window, Editor::toggle_minimap);
445 }
446 register_action(editor, window, hover_popover::hover);
447 register_action(editor, window, Editor::reveal_in_finder);
448 register_action(editor, window, Editor::copy_path);
449 register_action(editor, window, Editor::copy_relative_path);
450 register_action(editor, window, Editor::copy_file_name);
451 register_action(editor, window, Editor::copy_file_name_without_extension);
452 register_action(editor, window, Editor::copy_highlight_json);
453 register_action(editor, window, Editor::copy_permalink_to_line);
454 register_action(editor, window, Editor::open_permalink_to_line);
455 register_action(editor, window, Editor::copy_file_location);
456 register_action(editor, window, Editor::toggle_git_blame);
457 register_action(editor, window, Editor::toggle_git_blame_inline);
458 register_action(editor, window, Editor::open_git_blame_commit);
459 register_action(editor, window, Editor::toggle_selected_diff_hunks);
460 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
461 register_action(editor, window, Editor::stage_and_next);
462 register_action(editor, window, Editor::unstage_and_next);
463 register_action(editor, window, Editor::expand_all_diff_hunks);
464 register_action(editor, window, Editor::go_to_previous_change);
465 register_action(editor, window, Editor::go_to_next_change);
466
467 register_action(editor, window, |editor, action, window, cx| {
468 if let Some(task) = editor.format(action, window, cx) {
469 task.detach_and_notify_err(window, cx);
470 } else {
471 cx.propagate();
472 }
473 });
474 register_action(editor, window, |editor, action, window, cx| {
475 if let Some(task) = editor.format_selections(action, window, cx) {
476 task.detach_and_notify_err(window, cx);
477 } else {
478 cx.propagate();
479 }
480 });
481 register_action(editor, window, |editor, action, window, cx| {
482 if let Some(task) = editor.organize_imports(action, window, cx) {
483 task.detach_and_notify_err(window, cx);
484 } else {
485 cx.propagate();
486 }
487 });
488 register_action(editor, window, Editor::restart_language_server);
489 register_action(editor, window, Editor::stop_language_server);
490 register_action(editor, window, Editor::show_character_palette);
491 register_action(editor, window, |editor, action, window, cx| {
492 if let Some(task) = editor.confirm_completion(action, window, cx) {
493 task.detach_and_notify_err(window, cx);
494 } else {
495 cx.propagate();
496 }
497 });
498 register_action(editor, window, |editor, action, window, cx| {
499 if let Some(task) = editor.confirm_completion_replace(action, window, cx) {
500 task.detach_and_notify_err(window, cx);
501 } else {
502 cx.propagate();
503 }
504 });
505 register_action(editor, window, |editor, action, window, cx| {
506 if let Some(task) = editor.confirm_completion_insert(action, window, cx) {
507 task.detach_and_notify_err(window, cx);
508 } else {
509 cx.propagate();
510 }
511 });
512 register_action(editor, window, |editor, action, window, cx| {
513 if let Some(task) = editor.compose_completion(action, window, cx) {
514 task.detach_and_notify_err(window, cx);
515 } else {
516 cx.propagate();
517 }
518 });
519 register_action(editor, window, |editor, action, window, cx| {
520 if let Some(task) = editor.confirm_code_action(action, window, cx) {
521 task.detach_and_notify_err(window, cx);
522 } else {
523 cx.propagate();
524 }
525 });
526 register_action(editor, window, |editor, action, window, cx| {
527 if let Some(task) = editor.rename(action, window, cx) {
528 task.detach_and_notify_err(window, cx);
529 } else {
530 cx.propagate();
531 }
532 });
533 register_action(editor, window, |editor, action, window, cx| {
534 if let Some(task) = editor.confirm_rename(action, window, cx) {
535 task.detach_and_notify_err(window, cx);
536 } else {
537 cx.propagate();
538 }
539 });
540 register_action(editor, window, |editor, action, window, cx| {
541 if let Some(task) = editor.find_all_references(action, window, cx) {
542 task.detach_and_log_err(cx);
543 } else {
544 cx.propagate();
545 }
546 });
547 register_action(editor, window, Editor::show_signature_help);
548 register_action(editor, window, Editor::next_edit_prediction);
549 register_action(editor, window, Editor::previous_edit_prediction);
550 register_action(editor, window, Editor::show_inline_completion);
551 register_action(editor, window, Editor::context_menu_first);
552 register_action(editor, window, Editor::context_menu_prev);
553 register_action(editor, window, Editor::context_menu_next);
554 register_action(editor, window, Editor::context_menu_last);
555 register_action(editor, window, Editor::display_cursor_names);
556 register_action(editor, window, Editor::unique_lines_case_insensitive);
557 register_action(editor, window, Editor::unique_lines_case_sensitive);
558 register_action(editor, window, Editor::accept_partial_inline_completion);
559 register_action(editor, window, Editor::accept_edit_prediction);
560 register_action(editor, window, Editor::restore_file);
561 register_action(editor, window, Editor::git_restore);
562 register_action(editor, window, Editor::apply_all_diff_hunks);
563 register_action(editor, window, Editor::apply_selected_diff_hunks);
564 register_action(editor, window, Editor::open_active_item_in_terminal);
565 register_action(editor, window, Editor::reload_file);
566 register_action(editor, window, Editor::spawn_nearest_task);
567 register_action(editor, window, Editor::insert_uuid_v4);
568 register_action(editor, window, Editor::insert_uuid_v7);
569 register_action(editor, window, Editor::open_selections_in_multibuffer);
570 register_action(editor, window, Editor::toggle_breakpoint);
571 register_action(editor, window, Editor::edit_log_breakpoint);
572 register_action(editor, window, Editor::enable_breakpoint);
573 register_action(editor, window, Editor::disable_breakpoint);
574 }
575
576 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
577 let position_map = layout.position_map.clone();
578 window.on_key_event({
579 let editor = self.editor.clone();
580 move |event: &ModifiersChangedEvent, phase, window, cx| {
581 if phase != DispatchPhase::Bubble {
582 return;
583 }
584 editor.update(cx, |editor, cx| {
585 let inlay_hint_settings = inlay_hint_settings(
586 editor.selections.newest_anchor().head(),
587 &editor.buffer.read(cx).snapshot(cx),
588 cx,
589 );
590
591 if let Some(inlay_modifiers) = inlay_hint_settings
592 .toggle_on_modifiers_press
593 .as_ref()
594 .filter(|modifiers| modifiers.modified())
595 {
596 editor.refresh_inlay_hints(
597 InlayHintRefreshReason::ModifiersChanged(
598 inlay_modifiers == &event.modifiers,
599 ),
600 cx,
601 );
602 }
603
604 if editor.hover_state.focused(window, cx) {
605 return;
606 }
607
608 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
609 })
610 }
611 });
612 }
613
614 fn mouse_left_down(
615 editor: &mut Editor,
616 event: &MouseDownEvent,
617 hovered_hunk: Option<Range<Anchor>>,
618 position_map: &PositionMap,
619 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
620 window: &mut Window,
621 cx: &mut Context<Editor>,
622 ) {
623 if window.default_prevented() {
624 return;
625 }
626
627 let text_hitbox = &position_map.text_hitbox;
628 let gutter_hitbox = &position_map.gutter_hitbox;
629 let point_for_position = position_map.point_for_position(event.position);
630 let mut click_count = event.click_count;
631 let mut modifiers = event.modifiers;
632
633 if let Some(hovered_hunk) = hovered_hunk {
634 editor.toggle_single_diff_hunk(hovered_hunk, cx);
635 cx.notify();
636 return;
637 } else if gutter_hitbox.is_hovered(window) {
638 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
639 } else if !text_hitbox.is_hovered(window) {
640 return;
641 }
642
643 if editor.drag_and_drop_selection_enabled && click_count == 1 {
644 let newest_anchor = editor.selections.newest_anchor();
645 let snapshot = editor.snapshot(window, cx);
646 let selection = newest_anchor.map(|anchor| anchor.to_display_point(&snapshot));
647 if point_for_position.intersects_selection(&selection) {
648 editor.selection_drag_state = SelectionDragState::ReadyToDrag {
649 selection: newest_anchor.clone(),
650 click_position: event.position,
651 mouse_down_time: Instant::now(),
652 };
653 cx.stop_propagation();
654 return;
655 }
656 }
657
658 let is_singleton = editor.buffer().read(cx).is_singleton();
659
660 if click_count == 2 && !is_singleton {
661 match EditorSettings::get_global(cx).double_click_in_multibuffer {
662 DoubleClickInMultibuffer::Select => {
663 // do nothing special on double click, all selection logic is below
664 }
665 DoubleClickInMultibuffer::Open => {
666 if modifiers.alt {
667 // if double click is made with alt, pretend it's a regular double click without opening and alt,
668 // and run the selection logic.
669 modifiers.alt = false;
670 } else {
671 let scroll_position_row =
672 position_map.scroll_pixel_position.y / position_map.line_height;
673 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
674 + position_map.scroll_pixel_position.y)
675 / position_map.line_height)
676 as u32;
677 let multi_buffer_row = position_map
678 .snapshot
679 .display_point_to_point(
680 DisplayPoint::new(DisplayRow(display_row), 0),
681 Bias::Right,
682 )
683 .row;
684 let line_offset_from_top = display_row - scroll_position_row as u32;
685 // if double click is made without alt, open the corresponding excerp
686 editor.open_excerpts_common(
687 Some(JumpData::MultiBufferRow {
688 row: MultiBufferRow(multi_buffer_row),
689 line_offset_from_top,
690 }),
691 false,
692 window,
693 cx,
694 );
695 return;
696 }
697 }
698 }
699 }
700
701 let position = point_for_position.previous_valid;
702 if let Some(mode) = Editor::columnar_selection_mode(&modifiers, cx) {
703 editor.select(
704 SelectPhase::BeginColumnar {
705 position,
706 reset: match mode {
707 ColumnarMode::FromMouse => true,
708 ColumnarMode::FromSelection => false,
709 },
710 mode: mode,
711 goal_column: point_for_position.exact_unclipped.column(),
712 },
713 window,
714 cx,
715 );
716 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
717 {
718 editor.select(
719 SelectPhase::Extend {
720 position,
721 click_count,
722 },
723 window,
724 cx,
725 );
726 } else {
727 editor.select(
728 SelectPhase::Begin {
729 position,
730 add: Editor::multi_cursor_modifier(true, &modifiers, cx),
731 click_count,
732 },
733 window,
734 cx,
735 );
736 }
737 cx.stop_propagation();
738
739 if !is_singleton {
740 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
741 + position_map.scroll_pixel_position.y)
742 / position_map.line_height) as u32;
743 let multi_buffer_row = position_map
744 .snapshot
745 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
746 .row;
747 if line_numbers
748 .get(&MultiBufferRow(multi_buffer_row))
749 .and_then(|line_number| line_number.hitbox.as_ref())
750 .is_some_and(|hitbox| hitbox.contains(&event.position))
751 {
752 let scroll_position_row =
753 position_map.scroll_pixel_position.y / position_map.line_height;
754 let line_offset_from_top = display_row - scroll_position_row as u32;
755
756 editor.open_excerpts_common(
757 Some(JumpData::MultiBufferRow {
758 row: MultiBufferRow(multi_buffer_row),
759 line_offset_from_top,
760 }),
761 modifiers.alt,
762 window,
763 cx,
764 );
765 cx.stop_propagation();
766 }
767 }
768 }
769
770 fn mouse_right_down(
771 editor: &mut Editor,
772 event: &MouseDownEvent,
773 position_map: &PositionMap,
774 window: &mut Window,
775 cx: &mut Context<Editor>,
776 ) {
777 if position_map.gutter_hitbox.is_hovered(window) {
778 let gutter_right_padding = editor.gutter_dimensions.right_padding;
779 let hitbox = &position_map.gutter_hitbox;
780
781 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
782 let point_for_position = position_map.point_for_position(event.position);
783 editor.set_breakpoint_context_menu(
784 point_for_position.previous_valid.row(),
785 None,
786 event.position,
787 window,
788 cx,
789 );
790 }
791 return;
792 }
793
794 if !position_map.text_hitbox.is_hovered(window) {
795 return;
796 }
797
798 let point_for_position = position_map.point_for_position(event.position);
799 mouse_context_menu::deploy_context_menu(
800 editor,
801 Some(event.position),
802 point_for_position.previous_valid,
803 window,
804 cx,
805 );
806 cx.stop_propagation();
807 }
808
809 fn mouse_middle_down(
810 editor: &mut Editor,
811 event: &MouseDownEvent,
812 position_map: &PositionMap,
813 window: &mut Window,
814 cx: &mut Context<Editor>,
815 ) {
816 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
817 return;
818 }
819
820 let point_for_position = position_map.point_for_position(event.position);
821 let position = point_for_position.previous_valid;
822
823 editor.select(
824 SelectPhase::BeginColumnar {
825 position,
826 reset: true,
827 mode: ColumnarMode::FromMouse,
828 goal_column: point_for_position.exact_unclipped.column(),
829 },
830 window,
831 cx,
832 );
833 }
834
835 fn mouse_up(
836 editor: &mut Editor,
837 event: &MouseUpEvent,
838 position_map: &PositionMap,
839 window: &mut Window,
840 cx: &mut Context<Editor>,
841 ) {
842 let text_hitbox = &position_map.text_hitbox;
843 let end_selection = editor.has_pending_selection();
844 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
845 let point_for_position = position_map.point_for_position(event.position);
846
847 match editor.selection_drag_state {
848 SelectionDragState::ReadyToDrag {
849 selection: _,
850 ref click_position,
851 mouse_down_time: _,
852 } => {
853 if event.position == *click_position {
854 editor.select(
855 SelectPhase::Begin {
856 position: point_for_position.previous_valid,
857 add: false,
858 click_count: 1, // ready to drag state only occurs on click count 1
859 },
860 window,
861 cx,
862 );
863 editor.selection_drag_state = SelectionDragState::None;
864 cx.stop_propagation();
865 return;
866 } else {
867 debug_panic!("drag state can never be in ready state after drag")
868 }
869 }
870 SelectionDragState::Dragging { ref selection, .. } => {
871 let snapshot = editor.snapshot(window, cx);
872 let selection_display = selection.map(|anchor| anchor.to_display_point(&snapshot));
873 if !point_for_position.intersects_selection(&selection_display)
874 && text_hitbox.is_hovered(window)
875 {
876 let is_cut = !(cfg!(target_os = "macos") && event.modifiers.alt
877 || cfg!(not(target_os = "macos")) && event.modifiers.control);
878 editor.move_selection_on_drop(
879 &selection.clone(),
880 point_for_position.previous_valid,
881 is_cut,
882 window,
883 cx,
884 );
885 }
886 editor.selection_drag_state = SelectionDragState::None;
887 cx.stop_propagation();
888 cx.notify();
889 return;
890 }
891 _ => {}
892 }
893
894 if end_selection {
895 editor.select(SelectPhase::End, window, cx);
896 }
897
898 if end_selection && pending_nonempty_selections {
899 cx.stop_propagation();
900 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
901 && event.button == MouseButton::Middle
902 {
903 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
904 return;
905 }
906
907 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
908 if EditorSettings::get_global(cx).middle_click_paste {
909 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
910 let point_for_position = position_map.point_for_position(event.position);
911 let position = point_for_position.previous_valid;
912
913 editor.select(
914 SelectPhase::Begin {
915 position,
916 add: false,
917 click_count: 1,
918 },
919 window,
920 cx,
921 );
922 editor.insert(&text, window, cx);
923 }
924 cx.stop_propagation()
925 }
926 }
927 }
928
929 fn click(
930 editor: &mut Editor,
931 event: &ClickEvent,
932 position_map: &PositionMap,
933 window: &mut Window,
934 cx: &mut Context<Editor>,
935 ) {
936 let text_hitbox = &position_map.text_hitbox;
937 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
938
939 let hovered_link_modifier = Editor::multi_cursor_modifier(false, &event.modifiers(), cx);
940
941 if !pending_nonempty_selections && hovered_link_modifier && text_hitbox.is_hovered(window) {
942 let point = position_map.point_for_position(event.up.position);
943 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
944
945 cx.stop_propagation();
946 }
947 }
948
949 fn mouse_dragged(
950 editor: &mut Editor,
951 event: &MouseMoveEvent,
952 position_map: &PositionMap,
953 window: &mut Window,
954 cx: &mut Context<Editor>,
955 ) {
956 if !editor.has_pending_selection()
957 && matches!(editor.selection_drag_state, SelectionDragState::None)
958 {
959 return;
960 }
961
962 let point_for_position = position_map.point_for_position(event.position);
963 let text_hitbox = &position_map.text_hitbox;
964
965 let scroll_delta = {
966 let text_bounds = text_hitbox.bounds;
967 let mut scroll_delta = gpui::Point::<f32>::default();
968 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
969 let top = text_bounds.origin.y + vertical_margin;
970 let bottom = text_bounds.bottom_left().y - vertical_margin;
971 if event.position.y < top {
972 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
973 }
974 if event.position.y > bottom {
975 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
976 }
977
978 // We need horizontal width of text
979 let style = editor.style.clone().unwrap_or_default();
980 let font_id = window.text_system().resolve_font(&style.text.font());
981 let font_size = style.text.font_size.to_pixels(window.rem_size());
982 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
983
984 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
985
986 let scroll_space: Pixels = scroll_margin_x * em_width;
987
988 let left = text_bounds.origin.x + scroll_space;
989 let right = text_bounds.top_right().x - scroll_space;
990
991 if event.position.x < left {
992 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
993 }
994 if event.position.x > right {
995 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
996 }
997 scroll_delta
998 };
999
1000 if !editor.has_pending_selection() {
1001 let drop_anchor = position_map
1002 .snapshot
1003 .display_point_to_anchor(point_for_position.previous_valid, Bias::Left);
1004 match editor.selection_drag_state {
1005 SelectionDragState::Dragging {
1006 ref mut drop_cursor,
1007 ref mut hide_drop_cursor,
1008 ..
1009 } => {
1010 drop_cursor.start = drop_anchor;
1011 drop_cursor.end = drop_anchor;
1012 *hide_drop_cursor = !text_hitbox.is_hovered(window);
1013 editor.apply_scroll_delta(scroll_delta, window, cx);
1014 cx.notify();
1015 }
1016 SelectionDragState::ReadyToDrag {
1017 ref selection,
1018 ref click_position,
1019 ref mouse_down_time,
1020 } => {
1021 if mouse_down_time.elapsed() >= SELECTION_DRAG_DELAY {
1022 let drop_cursor = Selection {
1023 id: post_inc(&mut editor.selections.next_selection_id),
1024 start: drop_anchor,
1025 end: drop_anchor,
1026 reversed: false,
1027 goal: SelectionGoal::None,
1028 };
1029 editor.selection_drag_state = SelectionDragState::Dragging {
1030 selection: selection.clone(),
1031 drop_cursor,
1032 hide_drop_cursor: false,
1033 };
1034 editor.apply_scroll_delta(scroll_delta, window, cx);
1035 cx.notify();
1036 } else {
1037 let click_point = position_map.point_for_position(*click_position);
1038 editor.selection_drag_state = SelectionDragState::None;
1039 editor.select(
1040 SelectPhase::Begin {
1041 position: click_point.previous_valid,
1042 add: false,
1043 click_count: 1,
1044 },
1045 window,
1046 cx,
1047 );
1048 editor.select(
1049 SelectPhase::Update {
1050 position: point_for_position.previous_valid,
1051 goal_column: point_for_position.exact_unclipped.column(),
1052 scroll_delta,
1053 },
1054 window,
1055 cx,
1056 );
1057 }
1058 }
1059 _ => {}
1060 }
1061 } else {
1062 editor.select(
1063 SelectPhase::Update {
1064 position: point_for_position.previous_valid,
1065 goal_column: point_for_position.exact_unclipped.column(),
1066 scroll_delta,
1067 },
1068 window,
1069 cx,
1070 );
1071 }
1072 }
1073
1074 fn mouse_moved(
1075 editor: &mut Editor,
1076 event: &MouseMoveEvent,
1077 position_map: &PositionMap,
1078 window: &mut Window,
1079 cx: &mut Context<Editor>,
1080 ) {
1081 let text_hitbox = &position_map.text_hitbox;
1082 let gutter_hitbox = &position_map.gutter_hitbox;
1083 let modifiers = event.modifiers;
1084 let text_hovered = text_hitbox.is_hovered(window);
1085 let gutter_hovered = gutter_hitbox.is_hovered(window);
1086 editor.set_gutter_hovered(gutter_hovered, cx);
1087 editor.show_mouse_cursor(cx);
1088
1089 let point_for_position = position_map.point_for_position(event.position);
1090 let valid_point = point_for_position.previous_valid;
1091
1092 let hovered_diff_control = position_map
1093 .diff_hunk_control_bounds
1094 .iter()
1095 .find(|(_, bounds)| bounds.contains(&event.position))
1096 .map(|(row, _)| *row);
1097
1098 let hovered_diff_hunk_row = if let Some(control_row) = hovered_diff_control {
1099 Some(control_row)
1100 } else {
1101 if text_hovered {
1102 let current_row = valid_point.row();
1103 position_map.display_hunks.iter().find_map(|(hunk, _)| {
1104 if let DisplayDiffHunk::Unfolded {
1105 display_row_range, ..
1106 } = hunk
1107 {
1108 if display_row_range.contains(¤t_row) {
1109 Some(display_row_range.start)
1110 } else {
1111 None
1112 }
1113 } else {
1114 None
1115 }
1116 })
1117 } else {
1118 None
1119 }
1120 };
1121
1122 if hovered_diff_hunk_row != editor.hovered_diff_hunk_row {
1123 editor.hovered_diff_hunk_row = hovered_diff_hunk_row;
1124 cx.notify();
1125 }
1126
1127 if let Some((bounds, blame_entry)) = &position_map.inline_blame_bounds {
1128 let mouse_over_inline_blame = bounds.contains(&event.position);
1129 let mouse_over_popover = editor
1130 .inline_blame_popover
1131 .as_ref()
1132 .and_then(|state| state.popover_bounds)
1133 .map_or(false, |bounds| bounds.contains(&event.position));
1134
1135 if mouse_over_inline_blame || mouse_over_popover {
1136 editor.show_blame_popover(&blame_entry, event.position, cx);
1137 } else {
1138 editor.hide_blame_popover(cx);
1139 }
1140 } else {
1141 editor.hide_blame_popover(cx);
1142 }
1143
1144 let breakpoint_indicator = if gutter_hovered {
1145 let buffer_anchor = position_map
1146 .snapshot
1147 .display_point_to_anchor(valid_point, Bias::Left);
1148
1149 if let Some((buffer_snapshot, file)) = position_map
1150 .snapshot
1151 .buffer_snapshot
1152 .buffer_for_excerpt(buffer_anchor.excerpt_id)
1153 .and_then(|buffer| buffer.file().map(|file| (buffer, file)))
1154 {
1155 let as_point = text::ToPoint::to_point(&buffer_anchor.text_anchor, buffer_snapshot);
1156
1157 let is_visible = editor
1158 .gutter_breakpoint_indicator
1159 .0
1160 .map_or(false, |indicator| indicator.is_active);
1161
1162 let has_existing_breakpoint =
1163 editor.breakpoint_store.as_ref().map_or(false, |store| {
1164 let Some(project) = &editor.project else {
1165 return false;
1166 };
1167 let Some(abs_path) = project.read(cx).absolute_path(
1168 &ProjectPath {
1169 path: file.path().clone(),
1170 worktree_id: file.worktree_id(cx),
1171 },
1172 cx,
1173 ) else {
1174 return false;
1175 };
1176 store
1177 .read(cx)
1178 .breakpoint_at_row(&abs_path, as_point.row, cx)
1179 .is_some()
1180 });
1181
1182 if !is_visible {
1183 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
1184 cx.spawn(async move |this, cx| {
1185 cx.background_executor()
1186 .timer(Duration::from_millis(200))
1187 .await;
1188
1189 this.update(cx, |this, cx| {
1190 if let Some(indicator) = this.gutter_breakpoint_indicator.0.as_mut()
1191 {
1192 indicator.is_active = true;
1193 cx.notify();
1194 }
1195 })
1196 .ok();
1197 })
1198 });
1199 }
1200
1201 Some(PhantomBreakpointIndicator {
1202 display_row: valid_point.row(),
1203 is_active: is_visible,
1204 collides_with_existing_breakpoint: has_existing_breakpoint,
1205 })
1206 } else {
1207 editor.gutter_breakpoint_indicator.1 = None;
1208 None
1209 }
1210 } else {
1211 editor.gutter_breakpoint_indicator.1 = None;
1212 None
1213 };
1214
1215 if &breakpoint_indicator != &editor.gutter_breakpoint_indicator.0 {
1216 editor.gutter_breakpoint_indicator.0 = breakpoint_indicator;
1217 cx.notify();
1218 }
1219
1220 // Don't trigger hover popover if mouse is hovering over context menu
1221 if text_hovered {
1222 editor.update_hovered_link(
1223 point_for_position,
1224 &position_map.snapshot,
1225 modifiers,
1226 window,
1227 cx,
1228 );
1229
1230 if let Some(point) = point_for_position.as_valid() {
1231 let anchor = position_map
1232 .snapshot
1233 .buffer_snapshot
1234 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1235 hover_at(editor, Some(anchor), window, cx);
1236 Self::update_visible_cursor(editor, point, position_map, window, cx);
1237 } else {
1238 hover_at(editor, None, window, cx);
1239 }
1240 } else {
1241 editor.hide_hovered_link(cx);
1242 hover_at(editor, None, window, cx);
1243 }
1244 }
1245
1246 fn update_visible_cursor(
1247 editor: &mut Editor,
1248 point: DisplayPoint,
1249 position_map: &PositionMap,
1250 window: &mut Window,
1251 cx: &mut Context<Editor>,
1252 ) {
1253 let snapshot = &position_map.snapshot;
1254 let Some(hub) = editor.collaboration_hub() else {
1255 return;
1256 };
1257 let start = snapshot.display_snapshot.clip_point(
1258 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1259 Bias::Left,
1260 );
1261 let end = snapshot.display_snapshot.clip_point(
1262 DisplayPoint::new(
1263 point.row(),
1264 (point.column() + 1).min(snapshot.line_len(point.row())),
1265 ),
1266 Bias::Right,
1267 );
1268
1269 let range = snapshot
1270 .buffer_snapshot
1271 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
1272 ..snapshot
1273 .buffer_snapshot
1274 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
1275
1276 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1277 return;
1278 };
1279 let key = crate::HoveredCursor {
1280 replica_id: selection.replica_id,
1281 selection_id: selection.selection.id,
1282 };
1283 editor.hovered_cursors.insert(
1284 key.clone(),
1285 cx.spawn_in(window, async move |editor, cx| {
1286 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1287 editor
1288 .update(cx, |editor, cx| {
1289 editor.hovered_cursors.remove(&key);
1290 cx.notify();
1291 })
1292 .ok();
1293 }),
1294 );
1295 cx.notify()
1296 }
1297
1298 fn layout_selections(
1299 &self,
1300 start_anchor: Anchor,
1301 end_anchor: Anchor,
1302 local_selections: &[Selection<Point>],
1303 snapshot: &EditorSnapshot,
1304 start_row: DisplayRow,
1305 end_row: DisplayRow,
1306 window: &mut Window,
1307 cx: &mut App,
1308 ) -> (
1309 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1310 BTreeMap<DisplayRow, LineHighlightSpec>,
1311 Option<DisplayPoint>,
1312 ) {
1313 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1314 let mut active_rows = BTreeMap::new();
1315 let mut newest_selection_head = None;
1316
1317 let Some(editor_with_selections) = self.editor_with_selections(cx) else {
1318 return (selections, active_rows, newest_selection_head);
1319 };
1320
1321 editor_with_selections.update(cx, |editor, cx| {
1322 if editor.show_local_selections {
1323 let mut layouts = Vec::new();
1324 let newest = editor.selections.newest(cx);
1325 for selection in local_selections.iter().cloned() {
1326 let is_empty = selection.start == selection.end;
1327 let is_newest = selection == newest;
1328
1329 let layout = SelectionLayout::new(
1330 selection,
1331 editor.selections.line_mode,
1332 editor.cursor_shape,
1333 &snapshot.display_snapshot,
1334 is_newest,
1335 editor.leader_id.is_none(),
1336 None,
1337 );
1338 if is_newest {
1339 newest_selection_head = Some(layout.head);
1340 }
1341
1342 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1343 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1344 {
1345 let contains_non_empty_selection = active_rows
1346 .entry(DisplayRow(row))
1347 .or_insert_with(LineHighlightSpec::default);
1348 contains_non_empty_selection.selection |= !is_empty;
1349 }
1350 layouts.push(layout);
1351 }
1352
1353 let player = editor.current_user_player_color(cx);
1354 selections.push((player, layouts));
1355
1356 if let SelectionDragState::Dragging {
1357 ref selection,
1358 ref drop_cursor,
1359 ref hide_drop_cursor,
1360 } = editor.selection_drag_state
1361 {
1362 if !hide_drop_cursor
1363 && (drop_cursor
1364 .start
1365 .cmp(&selection.start, &snapshot.buffer_snapshot)
1366 .eq(&Ordering::Less)
1367 || drop_cursor
1368 .end
1369 .cmp(&selection.end, &snapshot.buffer_snapshot)
1370 .eq(&Ordering::Greater))
1371 {
1372 let drag_cursor_layout = SelectionLayout::new(
1373 drop_cursor.clone(),
1374 false,
1375 CursorShape::Bar,
1376 &snapshot.display_snapshot,
1377 false,
1378 false,
1379 None,
1380 );
1381 let absent_color = cx.theme().players().absent();
1382 selections.push((absent_color, vec![drag_cursor_layout]));
1383 }
1384 }
1385 }
1386
1387 if let Some(collaboration_hub) = &editor.collaboration_hub {
1388 // When following someone, render the local selections in their color.
1389 if let Some(leader_id) = editor.leader_id {
1390 match leader_id {
1391 CollaboratorId::PeerId(peer_id) => {
1392 if let Some(collaborator) =
1393 collaboration_hub.collaborators(cx).get(&peer_id)
1394 {
1395 if let Some(participant_index) = collaboration_hub
1396 .user_participant_indices(cx)
1397 .get(&collaborator.user_id)
1398 {
1399 if let Some((local_selection_style, _)) = selections.first_mut()
1400 {
1401 *local_selection_style = cx
1402 .theme()
1403 .players()
1404 .color_for_participant(participant_index.0);
1405 }
1406 }
1407 }
1408 }
1409 CollaboratorId::Agent => {
1410 if let Some((local_selection_style, _)) = selections.first_mut() {
1411 *local_selection_style = cx.theme().players().agent();
1412 }
1413 }
1414 }
1415 }
1416
1417 let mut remote_selections = HashMap::default();
1418 for selection in snapshot.remote_selections_in_range(
1419 &(start_anchor..end_anchor),
1420 collaboration_hub.as_ref(),
1421 cx,
1422 ) {
1423 // Don't re-render the leader's selections, since the local selections
1424 // match theirs.
1425 if Some(selection.collaborator_id) == editor.leader_id {
1426 continue;
1427 }
1428 let key = HoveredCursor {
1429 replica_id: selection.replica_id,
1430 selection_id: selection.selection.id,
1431 };
1432
1433 let is_shown =
1434 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1435
1436 remote_selections
1437 .entry(selection.replica_id)
1438 .or_insert((selection.color, Vec::new()))
1439 .1
1440 .push(SelectionLayout::new(
1441 selection.selection,
1442 selection.line_mode,
1443 selection.cursor_shape,
1444 &snapshot.display_snapshot,
1445 false,
1446 false,
1447 if is_shown { selection.user_name } else { None },
1448 ));
1449 }
1450
1451 selections.extend(remote_selections.into_values());
1452 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1453 let layouts = snapshot
1454 .buffer_snapshot
1455 .selections_in_range(&(start_anchor..end_anchor), true)
1456 .map(move |(_, line_mode, cursor_shape, selection)| {
1457 SelectionLayout::new(
1458 selection,
1459 line_mode,
1460 cursor_shape,
1461 &snapshot.display_snapshot,
1462 false,
1463 false,
1464 None,
1465 )
1466 })
1467 .collect::<Vec<_>>();
1468 let player = editor.current_user_player_color(cx);
1469 selections.push((player, layouts));
1470 }
1471 });
1472 (selections, active_rows, newest_selection_head)
1473 }
1474
1475 fn collect_cursors(
1476 &self,
1477 snapshot: &EditorSnapshot,
1478 cx: &mut App,
1479 ) -> Vec<(DisplayPoint, Hsla)> {
1480 let editor = self.editor.read(cx);
1481 let mut cursors = Vec::new();
1482 let mut skip_local = false;
1483 let mut add_cursor = |anchor: Anchor, color| {
1484 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1485 };
1486 // Remote cursors
1487 if let Some(collaboration_hub) = &editor.collaboration_hub {
1488 for remote_selection in snapshot.remote_selections_in_range(
1489 &(Anchor::min()..Anchor::max()),
1490 collaboration_hub.deref(),
1491 cx,
1492 ) {
1493 add_cursor(
1494 remote_selection.selection.head(),
1495 remote_selection.color.cursor,
1496 );
1497 if Some(remote_selection.collaborator_id) == editor.leader_id {
1498 skip_local = true;
1499 }
1500 }
1501 }
1502 // Local cursors
1503 if !skip_local {
1504 let color = cx.theme().players().local().cursor;
1505 editor.selections.disjoint.iter().for_each(|selection| {
1506 add_cursor(selection.head(), color);
1507 });
1508 if let Some(ref selection) = editor.selections.pending_anchor() {
1509 add_cursor(selection.head(), color);
1510 }
1511 }
1512 cursors
1513 }
1514
1515 fn layout_visible_cursors(
1516 &self,
1517 snapshot: &EditorSnapshot,
1518 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1519 row_block_types: &HashMap<DisplayRow, bool>,
1520 visible_display_row_range: Range<DisplayRow>,
1521 line_layouts: &[LineWithInvisibles],
1522 text_hitbox: &Hitbox,
1523 content_origin: gpui::Point<Pixels>,
1524 scroll_position: gpui::Point<f32>,
1525 scroll_pixel_position: gpui::Point<Pixels>,
1526 line_height: Pixels,
1527 em_width: Pixels,
1528 em_advance: Pixels,
1529 autoscroll_containing_element: bool,
1530 window: &mut Window,
1531 cx: &mut App,
1532 ) -> Vec<CursorLayout> {
1533 let mut autoscroll_bounds = None;
1534 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1535 let mut cursors = Vec::new();
1536
1537 let show_local_cursors = editor.show_local_cursors(window, cx);
1538
1539 for (player_color, selections) in selections {
1540 for selection in selections {
1541 let cursor_position = selection.head;
1542
1543 let in_range = visible_display_row_range.contains(&cursor_position.row());
1544 if (selection.is_local && !show_local_cursors)
1545 || !in_range
1546 || row_block_types.get(&cursor_position.row()) == Some(&true)
1547 {
1548 continue;
1549 }
1550
1551 let cursor_row_layout = &line_layouts
1552 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1553 let cursor_column = cursor_position.column() as usize;
1554
1555 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1556 let mut block_width =
1557 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1558 if block_width == Pixels::ZERO {
1559 block_width = em_advance;
1560 }
1561 let block_text = if let CursorShape::Block = selection.cursor_shape {
1562 snapshot
1563 .grapheme_at(cursor_position)
1564 .or_else(|| {
1565 if snapshot.is_empty() {
1566 snapshot.placeholder_text().and_then(|s| {
1567 s.graphemes(true).next().map(|s| s.to_string().into())
1568 })
1569 } else {
1570 None
1571 }
1572 })
1573 .map(|text| {
1574 let len = text.len();
1575
1576 let font = cursor_row_layout
1577 .font_id_for_index(cursor_column)
1578 .and_then(|cursor_font_id| {
1579 window.text_system().get_font_for_id(cursor_font_id)
1580 })
1581 .unwrap_or(self.style.text.font());
1582
1583 // Invert the text color for the block cursor. Ensure that the text
1584 // color is opaque enough to be visible against the background color.
1585 //
1586 // 0.75 is an arbitrary threshold to determine if the background color is
1587 // opaque enough to use as a text color.
1588 //
1589 // TODO: In the future we should ensure themes have a `text_inverse` color.
1590 let color = if cx.theme().colors().editor_background.a < 0.75 {
1591 match cx.theme().appearance {
1592 Appearance::Dark => Hsla::black(),
1593 Appearance::Light => Hsla::white(),
1594 }
1595 } else {
1596 cx.theme().colors().editor_background
1597 };
1598
1599 window.text_system().shape_line(
1600 text,
1601 cursor_row_layout.font_size,
1602 &[TextRun {
1603 len,
1604 font,
1605 color,
1606 background_color: None,
1607 strikethrough: None,
1608 underline: None,
1609 }],
1610 )
1611 })
1612 } else {
1613 None
1614 };
1615
1616 let x = cursor_character_x - scroll_pixel_position.x;
1617 let y = (cursor_position.row().as_f32()
1618 - scroll_pixel_position.y / line_height)
1619 * line_height;
1620 if selection.is_newest {
1621 editor.pixel_position_of_newest_cursor = Some(point(
1622 text_hitbox.origin.x + x + block_width / 2.,
1623 text_hitbox.origin.y + y + line_height / 2.,
1624 ));
1625
1626 if autoscroll_containing_element {
1627 let top = text_hitbox.origin.y
1628 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1629 * line_height;
1630 let left = text_hitbox.origin.x
1631 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1632 .max(0.)
1633 * em_width;
1634
1635 let bottom = text_hitbox.origin.y
1636 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1637 * line_height;
1638 let right = text_hitbox.origin.x
1639 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1640 * em_width;
1641
1642 autoscroll_bounds =
1643 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1644 }
1645 }
1646
1647 let mut cursor = CursorLayout {
1648 color: player_color.cursor,
1649 block_width,
1650 origin: point(x, y),
1651 line_height,
1652 shape: selection.cursor_shape,
1653 block_text,
1654 cursor_name: None,
1655 };
1656 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1657 string: name,
1658 color: self.style.background,
1659 is_top_row: cursor_position.row().0 == 0,
1660 });
1661 cursor.layout(content_origin, cursor_name, window, cx);
1662 cursors.push(cursor);
1663 }
1664 }
1665
1666 cursors
1667 });
1668
1669 if let Some(bounds) = autoscroll_bounds {
1670 window.request_autoscroll(bounds);
1671 }
1672
1673 cursor_layouts
1674 }
1675
1676 fn layout_scrollbars(
1677 &self,
1678 snapshot: &EditorSnapshot,
1679 scrollbar_layout_information: &ScrollbarLayoutInformation,
1680 content_offset: gpui::Point<Pixels>,
1681 scroll_position: gpui::Point<f32>,
1682 non_visible_cursors: bool,
1683 right_margin: Pixels,
1684 editor_width: Pixels,
1685 window: &mut Window,
1686 cx: &mut App,
1687 ) -> Option<EditorScrollbars> {
1688 let show_scrollbars = self.editor.read(cx).show_scrollbars;
1689 if (!show_scrollbars.horizontal && !show_scrollbars.vertical)
1690 || self.style.scrollbar_width.is_zero()
1691 {
1692 return None;
1693 }
1694
1695 // If a drag took place after we started dragging the scrollbar,
1696 // cancel the scrollbar drag.
1697 if cx.has_active_drag() {
1698 self.editor.update(cx, |editor, cx| {
1699 editor.scroll_manager.reset_scrollbar_state(cx)
1700 });
1701 }
1702
1703 let editor_settings = EditorSettings::get_global(cx);
1704 let scrollbar_settings = editor_settings.scrollbar;
1705 let show_scrollbars = match scrollbar_settings.show {
1706 ShowScrollbar::Auto => {
1707 let editor = self.editor.read(cx);
1708 let is_singleton = editor.is_singleton(cx);
1709 // Git
1710 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1711 ||
1712 // Buffer Search Results
1713 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1714 ||
1715 // Selected Text Occurrences
1716 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1717 ||
1718 // Selected Symbol Occurrences
1719 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1720 ||
1721 // Diagnostics
1722 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1723 ||
1724 // Cursors out of sight
1725 non_visible_cursors
1726 ||
1727 // Scrollmanager
1728 editor.scroll_manager.scrollbars_visible()
1729 }
1730 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1731 ShowScrollbar::Always => true,
1732 ShowScrollbar::Never => return None,
1733 };
1734
1735 // The horizontal scrollbar is usually slightly offset to align nicely with
1736 // indent guides. However, this offset is not needed if indent guides are
1737 // disabled for the current editor.
1738 let content_offset = self
1739 .editor
1740 .read(cx)
1741 .show_indent_guides
1742 .is_none_or(|should_show| should_show)
1743 .then_some(content_offset)
1744 .unwrap_or_default();
1745
1746 Some(EditorScrollbars::from_scrollbar_axes(
1747 ScrollbarAxes {
1748 horizontal: scrollbar_settings.axes.horizontal
1749 && self.editor.read(cx).show_scrollbars.horizontal,
1750 vertical: scrollbar_settings.axes.vertical
1751 && self.editor.read(cx).show_scrollbars.vertical,
1752 },
1753 scrollbar_layout_information,
1754 content_offset,
1755 scroll_position,
1756 self.style.scrollbar_width,
1757 right_margin,
1758 editor_width,
1759 show_scrollbars,
1760 self.editor.read(cx).scroll_manager.active_scrollbar_state(),
1761 window,
1762 ))
1763 }
1764
1765 fn layout_minimap(
1766 &self,
1767 snapshot: &EditorSnapshot,
1768 minimap_width: Pixels,
1769 scroll_position: gpui::Point<f32>,
1770 scrollbar_layout_information: &ScrollbarLayoutInformation,
1771 scrollbar_layout: Option<&EditorScrollbars>,
1772 window: &mut Window,
1773 cx: &mut App,
1774 ) -> Option<MinimapLayout> {
1775 let minimap_editor = self.editor.read(cx).minimap().cloned()?;
1776
1777 let minimap_settings = EditorSettings::get_global(cx).minimap;
1778
1779 if minimap_settings.on_active_editor() {
1780 let active_editor = self.editor.read(cx).workspace().and_then(|ws| {
1781 ws.read(cx)
1782 .active_pane()
1783 .read(cx)
1784 .active_item()
1785 .and_then(|i| i.act_as::<Editor>(cx))
1786 });
1787 if active_editor.is_some_and(|e| e != self.editor) {
1788 return None;
1789 }
1790 }
1791
1792 if !snapshot.mode.is_full()
1793 || minimap_width.is_zero()
1794 || matches!(
1795 minimap_settings.show,
1796 ShowMinimap::Auto if scrollbar_layout.is_none_or(|layout| !layout.visible)
1797 )
1798 {
1799 return None;
1800 }
1801
1802 const MINIMAP_AXIS: ScrollbarAxis = ScrollbarAxis::Vertical;
1803
1804 let ScrollbarLayoutInformation {
1805 editor_bounds,
1806 scroll_range,
1807 glyph_grid_cell,
1808 } = scrollbar_layout_information;
1809
1810 let line_height = glyph_grid_cell.height;
1811 let scroll_position = scroll_position.along(MINIMAP_AXIS);
1812
1813 let top_right_anchor = scrollbar_layout
1814 .and_then(|layout| layout.vertical.as_ref())
1815 .map(|vertical_scrollbar| vertical_scrollbar.hitbox.origin)
1816 .unwrap_or_else(|| editor_bounds.top_right());
1817
1818 let thumb_state = self
1819 .editor
1820 .read_with(cx, |editor, _| editor.scroll_manager.minimap_thumb_state());
1821
1822 let show_thumb = match minimap_settings.thumb {
1823 MinimapThumb::Always => true,
1824 MinimapThumb::Hover => thumb_state.is_some(),
1825 };
1826
1827 let minimap_bounds = Bounds::from_corner_and_size(
1828 Corner::TopRight,
1829 top_right_anchor,
1830 size(minimap_width, editor_bounds.size.height),
1831 );
1832 let minimap_line_height = self.get_minimap_line_height(
1833 minimap_editor
1834 .read(cx)
1835 .text_style_refinement
1836 .as_ref()
1837 .and_then(|refinement| refinement.font_size)
1838 .unwrap_or(MINIMAP_FONT_SIZE),
1839 window,
1840 cx,
1841 );
1842 let minimap_height = minimap_bounds.size.height;
1843
1844 let visible_editor_lines = editor_bounds.size.height / line_height;
1845 let total_editor_lines = scroll_range.height / line_height;
1846 let minimap_lines = minimap_height / minimap_line_height;
1847
1848 let minimap_scroll_top = MinimapLayout::calculate_minimap_top_offset(
1849 total_editor_lines,
1850 visible_editor_lines,
1851 minimap_lines,
1852 scroll_position,
1853 );
1854
1855 let layout = ScrollbarLayout::for_minimap(
1856 window.insert_hitbox(minimap_bounds, HitboxBehavior::Normal),
1857 visible_editor_lines,
1858 total_editor_lines,
1859 minimap_line_height,
1860 scroll_position,
1861 minimap_scroll_top,
1862 show_thumb,
1863 )
1864 .with_thumb_state(thumb_state);
1865
1866 minimap_editor.update(cx, |editor, cx| {
1867 editor.set_scroll_position(point(0., minimap_scroll_top), window, cx)
1868 });
1869
1870 // Required for the drop shadow to be visible
1871 const PADDING_OFFSET: Pixels = px(4.);
1872
1873 let mut minimap = div()
1874 .size_full()
1875 .shadow_sm()
1876 .px(PADDING_OFFSET)
1877 .child(minimap_editor)
1878 .into_any_element();
1879
1880 let extended_bounds = minimap_bounds.extend(Edges {
1881 right: PADDING_OFFSET,
1882 left: PADDING_OFFSET,
1883 ..Default::default()
1884 });
1885 minimap.layout_as_root(extended_bounds.size.into(), window, cx);
1886 window.with_absolute_element_offset(extended_bounds.origin, |window| {
1887 minimap.prepaint(window, cx)
1888 });
1889
1890 Some(MinimapLayout {
1891 minimap,
1892 thumb_layout: layout,
1893 thumb_border_style: minimap_settings.thumb_border,
1894 minimap_line_height,
1895 minimap_scroll_top,
1896 max_scroll_top: total_editor_lines,
1897 })
1898 }
1899
1900 fn get_minimap_line_height(
1901 &self,
1902 font_size: AbsoluteLength,
1903 window: &mut Window,
1904 cx: &mut App,
1905 ) -> Pixels {
1906 let rem_size = self.rem_size(cx).unwrap_or(window.rem_size());
1907 let mut text_style = self.style.text.clone();
1908 text_style.font_size = font_size;
1909 text_style.line_height_in_pixels(rem_size)
1910 }
1911
1912 fn prepaint_crease_toggles(
1913 &self,
1914 crease_toggles: &mut [Option<AnyElement>],
1915 line_height: Pixels,
1916 gutter_dimensions: &GutterDimensions,
1917 gutter_settings: crate::editor_settings::Gutter,
1918 scroll_pixel_position: gpui::Point<Pixels>,
1919 gutter_hitbox: &Hitbox,
1920 window: &mut Window,
1921 cx: &mut App,
1922 ) {
1923 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1924 if let Some(crease_toggle) = crease_toggle {
1925 debug_assert!(gutter_settings.folds);
1926 let available_space = size(
1927 AvailableSpace::MinContent,
1928 AvailableSpace::Definite(line_height * 0.55),
1929 );
1930 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1931
1932 let position = point(
1933 gutter_dimensions.width - gutter_dimensions.right_padding,
1934 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1935 );
1936 let centering_offset = point(
1937 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1938 (line_height - crease_toggle_size.height) / 2.,
1939 );
1940 let origin = gutter_hitbox.origin + position + centering_offset;
1941 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1942 }
1943 }
1944 }
1945
1946 fn prepaint_expand_toggles(
1947 &self,
1948 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
1949 window: &mut Window,
1950 cx: &mut App,
1951 ) {
1952 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
1953 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1954 expand_toggle.layout_as_root(available_space, window, cx);
1955 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
1956 }
1957 }
1958
1959 fn prepaint_crease_trailers(
1960 &self,
1961 trailers: Vec<Option<AnyElement>>,
1962 lines: &[LineWithInvisibles],
1963 line_height: Pixels,
1964 content_origin: gpui::Point<Pixels>,
1965 scroll_pixel_position: gpui::Point<Pixels>,
1966 em_width: Pixels,
1967 window: &mut Window,
1968 cx: &mut App,
1969 ) -> Vec<Option<CreaseTrailerLayout>> {
1970 trailers
1971 .into_iter()
1972 .enumerate()
1973 .map(|(ix, element)| {
1974 let mut element = element?;
1975 let available_space = size(
1976 AvailableSpace::MinContent,
1977 AvailableSpace::Definite(line_height),
1978 );
1979 let size = element.layout_as_root(available_space, window, cx);
1980
1981 let line = &lines[ix];
1982 let padding = if line.width == Pixels::ZERO {
1983 Pixels::ZERO
1984 } else {
1985 4. * em_width
1986 };
1987 let position = point(
1988 scroll_pixel_position.x + line.width + padding,
1989 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1990 );
1991 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
1992 let origin = content_origin + position + centering_offset;
1993 element.prepaint_as_root(origin, available_space, window, cx);
1994 Some(CreaseTrailerLayout {
1995 element,
1996 bounds: Bounds::new(origin, size),
1997 })
1998 })
1999 .collect()
2000 }
2001
2002 // Folds contained in a hunk are ignored apart from shrinking visual size
2003 // If a fold contains any hunks then that fold line is marked as modified
2004 fn layout_gutter_diff_hunks(
2005 &self,
2006 line_height: Pixels,
2007 gutter_hitbox: &Hitbox,
2008 display_rows: Range<DisplayRow>,
2009 snapshot: &EditorSnapshot,
2010 window: &mut Window,
2011 cx: &mut App,
2012 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
2013 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
2014 let mut display_hunks = snapshot
2015 .display_diff_hunks_for_rows(display_rows, folded_buffers)
2016 .map(|hunk| (hunk, None))
2017 .collect::<Vec<_>>();
2018 let git_gutter_setting = ProjectSettings::get_global(cx)
2019 .git
2020 .git_gutter
2021 .unwrap_or_default();
2022 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
2023 for (hunk, hitbox) in &mut display_hunks {
2024 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
2025 let hunk_bounds =
2026 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
2027 *hitbox = Some(window.insert_hitbox(hunk_bounds, HitboxBehavior::BlockMouse));
2028 }
2029 }
2030 }
2031
2032 display_hunks
2033 }
2034
2035 fn layout_inline_diagnostics(
2036 &self,
2037 line_layouts: &[LineWithInvisibles],
2038 crease_trailers: &[Option<CreaseTrailerLayout>],
2039 row_block_types: &HashMap<DisplayRow, bool>,
2040 content_origin: gpui::Point<Pixels>,
2041 scroll_pixel_position: gpui::Point<Pixels>,
2042 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
2043 start_row: DisplayRow,
2044 end_row: DisplayRow,
2045 line_height: Pixels,
2046 em_width: Pixels,
2047 style: &EditorStyle,
2048 window: &mut Window,
2049 cx: &mut App,
2050 ) -> HashMap<DisplayRow, AnyElement> {
2051 if self.editor.read(cx).mode().is_minimap() {
2052 return HashMap::default();
2053 }
2054
2055 let max_severity = match ProjectSettings::get_global(cx)
2056 .diagnostics
2057 .inline
2058 .max_severity
2059 .unwrap_or_else(|| self.editor.read(cx).diagnostics_max_severity)
2060 .into_lsp()
2061 {
2062 Some(max_severity) => max_severity,
2063 None => return HashMap::default(),
2064 };
2065
2066 let active_diagnostics_group =
2067 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
2068 Some(group.group_id)
2069 } else {
2070 None
2071 };
2072
2073 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
2074 let snapshot = editor.snapshot(window, cx);
2075 editor
2076 .inline_diagnostics
2077 .iter()
2078 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
2079 .filter(|(_, diagnostic)| match active_diagnostics_group {
2080 Some(active_diagnostics_group) => {
2081 // Active diagnostics are all shown in the editor already, no need to display them inline
2082 diagnostic.group_id != active_diagnostics_group
2083 }
2084 None => true,
2085 })
2086 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
2087 .skip_while(|(point, _)| point.row() < start_row)
2088 .take_while(|(point, _)| point.row() < end_row)
2089 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
2090 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
2091 acc.entry(point.row())
2092 .or_insert_with(Vec::new)
2093 .push(diagnostic);
2094 acc
2095 })
2096 });
2097
2098 if diagnostics_by_rows.is_empty() {
2099 return HashMap::default();
2100 }
2101
2102 let severity_to_color = |sev: &lsp::DiagnosticSeverity| match sev {
2103 &lsp::DiagnosticSeverity::ERROR => Color::Error,
2104 &lsp::DiagnosticSeverity::WARNING => Color::Warning,
2105 &lsp::DiagnosticSeverity::INFORMATION => Color::Info,
2106 &lsp::DiagnosticSeverity::HINT => Color::Hint,
2107 _ => Color::Error,
2108 };
2109
2110 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
2111 let min_x = ProjectSettings::get_global(cx)
2112 .diagnostics
2113 .inline
2114 .min_column as f32
2115 * em_width;
2116
2117 let mut elements = HashMap::default();
2118 for (row, mut diagnostics) in diagnostics_by_rows {
2119 diagnostics.sort_by_key(|diagnostic| {
2120 (
2121 diagnostic.severity,
2122 std::cmp::Reverse(diagnostic.is_primary),
2123 diagnostic.start.row,
2124 diagnostic.start.column,
2125 )
2126 });
2127
2128 let Some(diagnostic_to_render) = diagnostics
2129 .iter()
2130 .find(|diagnostic| diagnostic.is_primary)
2131 .or_else(|| diagnostics.first())
2132 else {
2133 continue;
2134 };
2135
2136 let pos_y = content_origin.y
2137 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
2138
2139 let window_ix = row.0.saturating_sub(start_row.0) as usize;
2140 let pos_x = {
2141 let crease_trailer_layout = &crease_trailers[window_ix];
2142 let line_layout = &line_layouts[window_ix];
2143
2144 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
2145 crease_trailer.bounds.right()
2146 } else {
2147 content_origin.x - scroll_pixel_position.x + line_layout.width
2148 };
2149
2150 let padded_line = line_end + padding;
2151 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
2152
2153 cmp::max(padded_line, min_start)
2154 };
2155
2156 let behind_inline_completion_popover = inline_completion_popover_origin
2157 .as_ref()
2158 .map_or(false, |inline_completion_popover_origin| {
2159 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
2160 });
2161 let opacity = if behind_inline_completion_popover {
2162 0.5
2163 } else {
2164 1.0
2165 };
2166
2167 let mut element = h_flex()
2168 .id(("diagnostic", row.0))
2169 .h(line_height)
2170 .w_full()
2171 .px_1()
2172 .rounded_xs()
2173 .opacity(opacity)
2174 .bg(severity_to_color(&diagnostic_to_render.severity)
2175 .color(cx)
2176 .opacity(0.05))
2177 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
2178 .text_sm()
2179 .font_family(style.text.font().family)
2180 .child(diagnostic_to_render.message.clone())
2181 .into_any();
2182
2183 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
2184
2185 elements.insert(row, element);
2186 }
2187
2188 elements
2189 }
2190
2191 fn layout_inline_code_actions(
2192 &self,
2193 display_point: DisplayPoint,
2194 content_origin: gpui::Point<Pixels>,
2195 scroll_pixel_position: gpui::Point<Pixels>,
2196 line_height: Pixels,
2197 snapshot: &EditorSnapshot,
2198 window: &mut Window,
2199 cx: &mut App,
2200 ) -> Option<AnyElement> {
2201 if !snapshot
2202 .show_code_actions
2203 .unwrap_or(EditorSettings::get_global(cx).inline_code_actions)
2204 {
2205 return None;
2206 }
2207
2208 let icon_size = ui::IconSize::XSmall;
2209 let mut button = self.editor.update(cx, |editor, cx| {
2210 editor.available_code_actions.as_ref()?;
2211 let active = editor
2212 .context_menu
2213 .borrow()
2214 .as_ref()
2215 .and_then(|menu| {
2216 if let crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2217 deployed_from,
2218 ..
2219 }) = menu
2220 {
2221 deployed_from.as_ref()
2222 } else {
2223 None
2224 }
2225 })
2226 .map_or(false, |source| {
2227 matches!(source, CodeActionSource::Indicator(..))
2228 });
2229 Some(editor.render_inline_code_actions(icon_size, display_point.row(), active, cx))
2230 })?;
2231
2232 let buffer_point = display_point.to_point(&snapshot.display_snapshot);
2233
2234 // do not show code action for folded line
2235 if snapshot.is_line_folded(MultiBufferRow(buffer_point.row)) {
2236 return None;
2237 }
2238
2239 // do not show code action for blank line with cursor
2240 let line_indent = snapshot
2241 .display_snapshot
2242 .buffer_snapshot
2243 .line_indent_for_row(MultiBufferRow(buffer_point.row));
2244 if line_indent.is_line_blank() {
2245 return None;
2246 }
2247
2248 const INLINE_SLOT_CHAR_LIMIT: u32 = 4;
2249 const MAX_ALTERNATE_DISTANCE: u32 = 8;
2250
2251 let excerpt_id = snapshot
2252 .display_snapshot
2253 .buffer_snapshot
2254 .excerpt_containing(buffer_point..buffer_point)
2255 .map(|excerpt| excerpt.id());
2256
2257 let is_valid_row = |row_candidate: u32| -> bool {
2258 // move to other row if folded row
2259 if snapshot.is_line_folded(MultiBufferRow(row_candidate)) {
2260 return false;
2261 }
2262 if buffer_point.row == row_candidate {
2263 // move to other row if cursor is in slot
2264 if buffer_point.column < INLINE_SLOT_CHAR_LIMIT {
2265 return false;
2266 }
2267 } else {
2268 let candidate_point = MultiBufferPoint {
2269 row: row_candidate,
2270 column: 0,
2271 };
2272 let candidate_excerpt_id = snapshot
2273 .display_snapshot
2274 .buffer_snapshot
2275 .excerpt_containing(candidate_point..candidate_point)
2276 .map(|excerpt| excerpt.id());
2277 // move to other row if different excerpt
2278 if excerpt_id != candidate_excerpt_id {
2279 return false;
2280 }
2281 }
2282 let line_indent = snapshot
2283 .display_snapshot
2284 .buffer_snapshot
2285 .line_indent_for_row(MultiBufferRow(row_candidate));
2286 // use this row if it's blank
2287 if line_indent.is_line_blank() {
2288 true
2289 } else {
2290 // use this row if code starts after slot
2291 let indent_size = snapshot
2292 .display_snapshot
2293 .buffer_snapshot
2294 .indent_size_for_line(MultiBufferRow(row_candidate));
2295 indent_size.len >= INLINE_SLOT_CHAR_LIMIT
2296 }
2297 };
2298
2299 let new_buffer_row = if is_valid_row(buffer_point.row) {
2300 Some(buffer_point.row)
2301 } else {
2302 let max_row = snapshot.display_snapshot.buffer_snapshot.max_point().row;
2303 (1..=MAX_ALTERNATE_DISTANCE).find_map(|offset| {
2304 let row_above = buffer_point.row.saturating_sub(offset);
2305 let row_below = buffer_point.row + offset;
2306 if row_above != buffer_point.row && is_valid_row(row_above) {
2307 Some(row_above)
2308 } else if row_below <= max_row && is_valid_row(row_below) {
2309 Some(row_below)
2310 } else {
2311 None
2312 }
2313 })
2314 }?;
2315
2316 let new_display_row = snapshot
2317 .display_snapshot
2318 .point_to_display_point(
2319 Point {
2320 row: new_buffer_row,
2321 column: buffer_point.column,
2322 },
2323 text::Bias::Left,
2324 )
2325 .row();
2326
2327 let start_y = content_origin.y
2328 + ((new_display_row.as_f32() - (scroll_pixel_position.y / line_height)) * line_height)
2329 + (line_height / 2.0)
2330 - (icon_size.square(window, cx) / 2.);
2331 let start_x = content_origin.x - scroll_pixel_position.x + (window.rem_size() * 0.1);
2332
2333 let absolute_offset = gpui::point(start_x, start_y);
2334 button.layout_as_root(gpui::AvailableSpace::min_size(), window, cx);
2335 button.prepaint_as_root(
2336 absolute_offset,
2337 gpui::AvailableSpace::min_size(),
2338 window,
2339 cx,
2340 );
2341 Some(button)
2342 }
2343
2344 fn layout_inline_blame(
2345 &self,
2346 display_row: DisplayRow,
2347 row_info: &RowInfo,
2348 line_layout: &LineWithInvisibles,
2349 crease_trailer: Option<&CreaseTrailerLayout>,
2350 em_width: Pixels,
2351 content_origin: gpui::Point<Pixels>,
2352 scroll_pixel_position: gpui::Point<Pixels>,
2353 line_height: Pixels,
2354 text_hitbox: &Hitbox,
2355 window: &mut Window,
2356 cx: &mut App,
2357 ) -> Option<InlineBlameLayout> {
2358 if !self
2359 .editor
2360 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
2361 {
2362 return None;
2363 }
2364
2365 let editor = self.editor.read(cx);
2366 let blame = editor.blame.clone()?;
2367 let padding = {
2368 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
2369 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
2370
2371 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
2372
2373 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
2374 match &inline_completion.completion {
2375 InlineCompletion::Edit {
2376 display_mode: EditDisplayMode::TabAccept,
2377 ..
2378 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
2379 _ => {}
2380 }
2381 }
2382
2383 padding * em_width
2384 };
2385
2386 let entry = blame
2387 .update(cx, |blame, cx| {
2388 blame.blame_for_rows(&[*row_info], cx).next()
2389 })
2390 .flatten()?;
2391
2392 let mut element = render_inline_blame_entry(entry.clone(), &self.style, cx)?;
2393
2394 let start_y = content_origin.y
2395 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
2396
2397 let start_x = {
2398 let line_end = if let Some(crease_trailer) = crease_trailer {
2399 crease_trailer.bounds.right()
2400 } else {
2401 content_origin.x - scroll_pixel_position.x + line_layout.width
2402 };
2403
2404 let padded_line_end = line_end + padding;
2405
2406 let min_column_in_pixels = ProjectSettings::get_global(cx)
2407 .git
2408 .inline_blame
2409 .and_then(|settings| settings.min_column)
2410 .map(|col| self.column_pixels(col as usize, window, cx))
2411 .unwrap_or(px(0.));
2412 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
2413
2414 cmp::max(padded_line_end, min_start)
2415 };
2416
2417 let absolute_offset = point(start_x, start_y);
2418 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2419 let bounds = Bounds::new(absolute_offset, size);
2420
2421 self.layout_blame_entry_popover(entry.clone(), blame, line_height, text_hitbox, window, cx);
2422
2423 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
2424
2425 Some(InlineBlameLayout {
2426 element,
2427 bounds,
2428 entry,
2429 })
2430 }
2431
2432 fn layout_blame_entry_popover(
2433 &self,
2434 blame_entry: BlameEntry,
2435 blame: Entity<GitBlame>,
2436 line_height: Pixels,
2437 text_hitbox: &Hitbox,
2438 window: &mut Window,
2439 cx: &mut App,
2440 ) {
2441 let Some((popover_state, target_point)) = self.editor.read_with(cx, |editor, _| {
2442 editor
2443 .inline_blame_popover
2444 .as_ref()
2445 .map(|state| (state.popover_state.clone(), state.position))
2446 }) else {
2447 return;
2448 };
2449
2450 let workspace = self
2451 .editor
2452 .read_with(cx, |editor, _| editor.workspace().map(|w| w.downgrade()));
2453
2454 let maybe_element = workspace.and_then(|workspace| {
2455 render_blame_entry_popover(
2456 blame_entry,
2457 popover_state.scroll_handle,
2458 popover_state.commit_message,
2459 popover_state.markdown,
2460 workspace,
2461 &blame,
2462 window,
2463 cx,
2464 )
2465 });
2466
2467 if let Some(mut element) = maybe_element {
2468 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2469 let overall_height = size.height + HOVER_POPOVER_GAP;
2470 let popover_origin = if target_point.y > overall_height {
2471 point(target_point.x, target_point.y - size.height)
2472 } else {
2473 point(
2474 target_point.x,
2475 target_point.y + line_height + HOVER_POPOVER_GAP,
2476 )
2477 };
2478
2479 let horizontal_offset = (text_hitbox.top_right().x
2480 - POPOVER_RIGHT_OFFSET
2481 - (popover_origin.x + size.width))
2482 .min(Pixels::ZERO);
2483
2484 let origin = point(popover_origin.x + horizontal_offset, popover_origin.y);
2485 let popover_bounds = Bounds::new(origin, size);
2486
2487 self.editor.update(cx, |editor, _| {
2488 if let Some(state) = &mut editor.inline_blame_popover {
2489 state.popover_bounds = Some(popover_bounds);
2490 }
2491 });
2492
2493 window.defer_draw(element, origin, 2);
2494 }
2495 }
2496
2497 fn layout_blame_entries(
2498 &self,
2499 buffer_rows: &[RowInfo],
2500 em_width: Pixels,
2501 scroll_position: gpui::Point<f32>,
2502 line_height: Pixels,
2503 gutter_hitbox: &Hitbox,
2504 max_width: Option<Pixels>,
2505 window: &mut Window,
2506 cx: &mut App,
2507 ) -> Option<Vec<AnyElement>> {
2508 if !self
2509 .editor
2510 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
2511 {
2512 return None;
2513 }
2514
2515 let blame = self.editor.read(cx).blame.clone()?;
2516 let workspace = self.editor.read(cx).workspace()?;
2517 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
2518 blame.blame_for_rows(buffer_rows, cx).collect()
2519 });
2520
2521 let width = if let Some(max_width) = max_width {
2522 AvailableSpace::Definite(max_width)
2523 } else {
2524 AvailableSpace::MaxContent
2525 };
2526 let scroll_top = scroll_position.y * line_height;
2527 let start_x = em_width;
2528
2529 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
2530 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
2531
2532 let shaped_lines = blamed_rows
2533 .into_iter()
2534 .enumerate()
2535 .flat_map(|(ix, blame_entry)| {
2536 let mut element = render_blame_entry(
2537 ix,
2538 &blame,
2539 blame_entry?,
2540 &self.style,
2541 &mut last_used_color,
2542 self.editor.clone(),
2543 workspace.clone(),
2544 blame_renderer.clone(),
2545 cx,
2546 )?;
2547
2548 let start_y = ix as f32 * line_height - (scroll_top % line_height);
2549 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
2550
2551 element.prepaint_as_root(
2552 absolute_offset,
2553 size(width, AvailableSpace::MinContent),
2554 window,
2555 cx,
2556 );
2557
2558 Some(element)
2559 })
2560 .collect();
2561
2562 Some(shaped_lines)
2563 }
2564
2565 fn layout_indent_guides(
2566 &self,
2567 content_origin: gpui::Point<Pixels>,
2568 text_origin: gpui::Point<Pixels>,
2569 visible_buffer_range: Range<MultiBufferRow>,
2570 scroll_pixel_position: gpui::Point<Pixels>,
2571 line_height: Pixels,
2572 snapshot: &DisplaySnapshot,
2573 window: &mut Window,
2574 cx: &mut App,
2575 ) -> Option<Vec<IndentGuideLayout>> {
2576 if self.editor.read(cx).mode().is_minimap() {
2577 return None;
2578 }
2579 let indent_guides = self.editor.update(cx, |editor, cx| {
2580 editor.indent_guides(visible_buffer_range, snapshot, cx)
2581 })?;
2582
2583 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
2584 editor
2585 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
2586 .unwrap_or_default()
2587 });
2588
2589 Some(
2590 indent_guides
2591 .into_iter()
2592 .enumerate()
2593 .filter_map(|(i, indent_guide)| {
2594 let single_indent_width =
2595 self.column_pixels(indent_guide.tab_size as usize, window, cx);
2596 let total_width = single_indent_width * indent_guide.depth as f32;
2597 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
2598 if start_x >= text_origin.x {
2599 let (offset_y, length) = Self::calculate_indent_guide_bounds(
2600 indent_guide.start_row..indent_guide.end_row,
2601 line_height,
2602 snapshot,
2603 );
2604
2605 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
2606
2607 Some(IndentGuideLayout {
2608 origin: point(start_x, start_y),
2609 length,
2610 single_indent_width,
2611 depth: indent_guide.depth,
2612 active: active_indent_guide_indices.contains(&i),
2613 settings: indent_guide.settings,
2614 })
2615 } else {
2616 None
2617 }
2618 })
2619 .collect(),
2620 )
2621 }
2622
2623 fn calculate_indent_guide_bounds(
2624 row_range: Range<MultiBufferRow>,
2625 line_height: Pixels,
2626 snapshot: &DisplaySnapshot,
2627 ) -> (gpui::Pixels, gpui::Pixels) {
2628 let start_point = Point::new(row_range.start.0, 0);
2629 let end_point = Point::new(row_range.end.0, 0);
2630
2631 let row_range = start_point.to_display_point(snapshot).row()
2632 ..end_point.to_display_point(snapshot).row();
2633
2634 let mut prev_line = start_point;
2635 prev_line.row = prev_line.row.saturating_sub(1);
2636 let prev_line = prev_line.to_display_point(snapshot).row();
2637
2638 let mut cons_line = end_point;
2639 cons_line.row += 1;
2640 let cons_line = cons_line.to_display_point(snapshot).row();
2641
2642 let mut offset_y = row_range.start.0 as f32 * line_height;
2643 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
2644
2645 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
2646 if row_range.end == cons_line {
2647 length += line_height;
2648 }
2649
2650 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
2651 // we want to extend the indent guide to the start of the block.
2652 let mut block_height = 0;
2653 let mut block_offset = 0;
2654 let mut found_excerpt_header = false;
2655 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
2656 if matches!(block, Block::ExcerptBoundary { .. }) {
2657 found_excerpt_header = true;
2658 break;
2659 }
2660 block_offset += block.height();
2661 block_height += block.height();
2662 }
2663 if !found_excerpt_header {
2664 offset_y -= block_offset as f32 * line_height;
2665 length += block_height as f32 * line_height;
2666 }
2667
2668 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
2669 // we want to ensure that the indent guide stops before the excerpt header.
2670 let mut block_height = 0;
2671 let mut found_excerpt_header = false;
2672 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2673 if matches!(block, Block::ExcerptBoundary { .. }) {
2674 found_excerpt_header = true;
2675 }
2676 block_height += block.height();
2677 }
2678 if found_excerpt_header {
2679 length -= block_height as f32 * line_height;
2680 }
2681
2682 (offset_y, length)
2683 }
2684
2685 fn layout_breakpoints(
2686 &self,
2687 line_height: Pixels,
2688 range: Range<DisplayRow>,
2689 scroll_pixel_position: gpui::Point<Pixels>,
2690 gutter_dimensions: &GutterDimensions,
2691 gutter_hitbox: &Hitbox,
2692 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2693 snapshot: &EditorSnapshot,
2694 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2695 row_infos: &[RowInfo],
2696 window: &mut Window,
2697 cx: &mut App,
2698 ) -> Vec<AnyElement> {
2699 self.editor.update(cx, |editor, cx| {
2700 breakpoints
2701 .into_iter()
2702 .filter_map(|(display_row, (text_anchor, bp, state))| {
2703 if row_infos
2704 .get((display_row.0.saturating_sub(range.start.0)) as usize)
2705 .is_some_and(|row_info| {
2706 row_info.expand_info.is_some()
2707 || row_info
2708 .diff_status
2709 .is_some_and(|status| status.is_deleted())
2710 })
2711 {
2712 return None;
2713 }
2714
2715 if range.start > display_row || range.end < display_row {
2716 return None;
2717 }
2718
2719 let row =
2720 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(&snapshot).row);
2721 if snapshot.is_line_folded(row) {
2722 return None;
2723 }
2724
2725 let button = editor.render_breakpoint(text_anchor, display_row, &bp, state, cx);
2726
2727 let button = prepaint_gutter_button(
2728 button,
2729 display_row,
2730 line_height,
2731 gutter_dimensions,
2732 scroll_pixel_position,
2733 gutter_hitbox,
2734 display_hunks,
2735 window,
2736 cx,
2737 );
2738 Some(button)
2739 })
2740 .collect_vec()
2741 })
2742 }
2743
2744 #[allow(clippy::too_many_arguments)]
2745 fn layout_run_indicators(
2746 &self,
2747 line_height: Pixels,
2748 range: Range<DisplayRow>,
2749 row_infos: &[RowInfo],
2750 scroll_pixel_position: gpui::Point<Pixels>,
2751 gutter_dimensions: &GutterDimensions,
2752 gutter_hitbox: &Hitbox,
2753 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2754 snapshot: &EditorSnapshot,
2755 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2756 window: &mut Window,
2757 cx: &mut App,
2758 ) -> Vec<AnyElement> {
2759 self.editor.update(cx, |editor, cx| {
2760 let active_task_indicator_row =
2761 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2762 deployed_from,
2763 actions,
2764 ..
2765 })) = editor.context_menu.borrow().as_ref()
2766 {
2767 actions
2768 .tasks()
2769 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2770 .or_else(|| match deployed_from {
2771 Some(CodeActionSource::Indicator(row)) => Some(*row),
2772 _ => None,
2773 })
2774 } else {
2775 None
2776 };
2777
2778 let offset_range_start =
2779 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2780
2781 let offset_range_end =
2782 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2783
2784 editor
2785 .tasks
2786 .iter()
2787 .filter_map(|(_, tasks)| {
2788 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2789 if multibuffer_point < offset_range_start
2790 || multibuffer_point > offset_range_end
2791 {
2792 return None;
2793 }
2794 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2795 let buffer_folded = snapshot
2796 .buffer_snapshot
2797 .buffer_line_for_row(multibuffer_row)
2798 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2799 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2800 .unwrap_or(false);
2801 if buffer_folded {
2802 return None;
2803 }
2804
2805 if snapshot.is_line_folded(multibuffer_row) {
2806 // Skip folded indicators, unless it's the starting line of a fold.
2807 if multibuffer_row
2808 .0
2809 .checked_sub(1)
2810 .map_or(false, |previous_row| {
2811 snapshot.is_line_folded(MultiBufferRow(previous_row))
2812 })
2813 {
2814 return None;
2815 }
2816 }
2817
2818 let display_row = multibuffer_point.to_display_point(snapshot).row();
2819 if !range.contains(&display_row) {
2820 return None;
2821 }
2822 if row_infos
2823 .get((display_row - range.start).0 as usize)
2824 .is_some_and(|row_info| row_info.expand_info.is_some())
2825 {
2826 return None;
2827 }
2828
2829 let button = editor.render_run_indicator(
2830 &self.style,
2831 Some(display_row) == active_task_indicator_row,
2832 display_row,
2833 breakpoints.remove(&display_row),
2834 cx,
2835 );
2836
2837 let button = prepaint_gutter_button(
2838 button,
2839 display_row,
2840 line_height,
2841 gutter_dimensions,
2842 scroll_pixel_position,
2843 gutter_hitbox,
2844 display_hunks,
2845 window,
2846 cx,
2847 );
2848 Some(button)
2849 })
2850 .collect_vec()
2851 })
2852 }
2853
2854 fn layout_expand_toggles(
2855 &self,
2856 gutter_hitbox: &Hitbox,
2857 gutter_dimensions: GutterDimensions,
2858 em_width: Pixels,
2859 line_height: Pixels,
2860 scroll_position: gpui::Point<f32>,
2861 buffer_rows: &[RowInfo],
2862 window: &mut Window,
2863 cx: &mut App,
2864 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
2865 if self.editor.read(cx).disable_expand_excerpt_buttons {
2866 return vec![];
2867 }
2868
2869 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
2870
2871 let scroll_top = scroll_position.y * line_height;
2872
2873 let max_line_number_length = self
2874 .editor
2875 .read(cx)
2876 .buffer()
2877 .read(cx)
2878 .snapshot(cx)
2879 .widest_line_number()
2880 .ilog10()
2881 + 1;
2882
2883 let elements = buffer_rows
2884 .into_iter()
2885 .enumerate()
2886 .map(|(ix, row_info)| {
2887 let ExpandInfo {
2888 excerpt_id,
2889 direction,
2890 } = row_info.expand_info?;
2891
2892 let icon_name = match direction {
2893 ExpandExcerptDirection::Up => IconName::ExpandUp,
2894 ExpandExcerptDirection::Down => IconName::ExpandDown,
2895 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
2896 };
2897
2898 let git_gutter_width = Self::gutter_strip_width(line_height);
2899 let available_width = gutter_dimensions.left_padding - git_gutter_width;
2900
2901 let editor = self.editor.clone();
2902 let is_wide = max_line_number_length
2903 >= EditorSettings::get_global(cx).gutter.min_line_number_digits as u32
2904 && row_info
2905 .buffer_row
2906 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
2907 || gutter_dimensions.right_padding == px(0.);
2908
2909 let width = if is_wide {
2910 available_width - px(2.)
2911 } else {
2912 available_width + em_width - px(2.)
2913 };
2914
2915 let toggle = IconButton::new(("expand", ix), icon_name)
2916 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
2917 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
2918 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
2919 .width(width.into())
2920 .on_click(move |_, window, cx| {
2921 editor.update(cx, |editor, cx| {
2922 editor.expand_excerpt(excerpt_id, direction, window, cx);
2923 });
2924 })
2925 .tooltip(Tooltip::for_action_title(
2926 "Expand Excerpt",
2927 &crate::actions::ExpandExcerpts::default(),
2928 ))
2929 .into_any_element();
2930
2931 let position = point(
2932 git_gutter_width + px(1.),
2933 ix as f32 * line_height - (scroll_top % line_height) + px(1.),
2934 );
2935 let origin = gutter_hitbox.origin + position;
2936
2937 Some((toggle, origin))
2938 })
2939 .collect();
2940
2941 elements
2942 }
2943
2944 fn calculate_relative_line_numbers(
2945 &self,
2946 snapshot: &EditorSnapshot,
2947 rows: &Range<DisplayRow>,
2948 relative_to: Option<DisplayRow>,
2949 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2950 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2951 let Some(relative_to) = relative_to else {
2952 return relative_rows;
2953 };
2954
2955 let start = rows.start.min(relative_to);
2956 let end = rows.end.max(relative_to);
2957
2958 let buffer_rows = snapshot
2959 .row_infos(start)
2960 .take(1 + end.minus(start) as usize)
2961 .collect::<Vec<_>>();
2962
2963 let head_idx = relative_to.minus(start);
2964 let mut delta = 1;
2965 let mut i = head_idx + 1;
2966 while i < buffer_rows.len() as u32 {
2967 if buffer_rows[i as usize].buffer_row.is_some() {
2968 if rows.contains(&DisplayRow(i + start.0)) {
2969 relative_rows.insert(DisplayRow(i + start.0), delta);
2970 }
2971 delta += 1;
2972 }
2973 i += 1;
2974 }
2975 delta = 1;
2976 i = head_idx.min(buffer_rows.len() as u32 - 1);
2977 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
2978 i -= 1;
2979 }
2980
2981 while i > 0 {
2982 i -= 1;
2983 if buffer_rows[i as usize].buffer_row.is_some() {
2984 if rows.contains(&DisplayRow(i + start.0)) {
2985 relative_rows.insert(DisplayRow(i + start.0), delta);
2986 }
2987 delta += 1;
2988 }
2989 }
2990
2991 relative_rows
2992 }
2993
2994 fn layout_line_numbers(
2995 &self,
2996 gutter_hitbox: Option<&Hitbox>,
2997 gutter_dimensions: GutterDimensions,
2998 line_height: Pixels,
2999 scroll_position: gpui::Point<f32>,
3000 rows: Range<DisplayRow>,
3001 buffer_rows: &[RowInfo],
3002 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3003 newest_selection_head: Option<DisplayPoint>,
3004 snapshot: &EditorSnapshot,
3005 window: &mut Window,
3006 cx: &mut App,
3007 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
3008 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
3009 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode.is_full()
3010 });
3011 if !include_line_numbers {
3012 return Arc::default();
3013 }
3014
3015 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
3016 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
3017 let newest = editor.selections.newest::<Point>(cx);
3018 SelectionLayout::new(
3019 newest,
3020 editor.selections.line_mode,
3021 editor.cursor_shape,
3022 &snapshot.display_snapshot,
3023 true,
3024 true,
3025 None,
3026 )
3027 .head
3028 });
3029 let is_relative = editor.should_use_relative_line_numbers(cx);
3030 (newest_selection_head, is_relative)
3031 });
3032
3033 let relative_to = if is_relative {
3034 Some(newest_selection_head.row())
3035 } else {
3036 None
3037 };
3038 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
3039 let mut line_number = String::new();
3040 let line_numbers = buffer_rows
3041 .into_iter()
3042 .enumerate()
3043 .flat_map(|(ix, row_info)| {
3044 let display_row = DisplayRow(rows.start.0 + ix as u32);
3045 line_number.clear();
3046 let non_relative_number = row_info.buffer_row? + 1;
3047 let number = relative_rows
3048 .get(&display_row)
3049 .unwrap_or(&non_relative_number);
3050 write!(&mut line_number, "{number}").unwrap();
3051 if row_info
3052 .diff_status
3053 .is_some_and(|status| status.is_deleted())
3054 {
3055 return None;
3056 }
3057
3058 let color = active_rows
3059 .get(&display_row)
3060 .map(|spec| {
3061 if spec.breakpoint {
3062 cx.theme().colors().debugger_accent
3063 } else {
3064 cx.theme().colors().editor_active_line_number
3065 }
3066 })
3067 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
3068 let shaped_line =
3069 self.shape_line_number(SharedString::from(&line_number), color, window);
3070 let scroll_top = scroll_position.y * line_height;
3071 let line_origin = gutter_hitbox.map(|hitbox| {
3072 hitbox.origin
3073 + point(
3074 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
3075 ix as f32 * line_height - (scroll_top % line_height),
3076 )
3077 });
3078
3079 #[cfg(not(test))]
3080 let hitbox = line_origin.map(|line_origin| {
3081 window.insert_hitbox(
3082 Bounds::new(line_origin, size(shaped_line.width, line_height)),
3083 HitboxBehavior::Normal,
3084 )
3085 });
3086 #[cfg(test)]
3087 let hitbox = {
3088 let _ = line_origin;
3089 None
3090 };
3091
3092 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
3093 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
3094 let line_number = LineNumberLayout {
3095 shaped_line,
3096 hitbox,
3097 };
3098 Some((multi_buffer_row, line_number))
3099 })
3100 .collect();
3101 Arc::new(line_numbers)
3102 }
3103
3104 fn layout_crease_toggles(
3105 &self,
3106 rows: Range<DisplayRow>,
3107 row_infos: &[RowInfo],
3108 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3109 snapshot: &EditorSnapshot,
3110 window: &mut Window,
3111 cx: &mut App,
3112 ) -> Vec<Option<AnyElement>> {
3113 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3114 && snapshot.mode.is_full()
3115 && self.editor.read(cx).is_singleton(cx);
3116 if include_fold_statuses {
3117 row_infos
3118 .into_iter()
3119 .enumerate()
3120 .map(|(ix, info)| {
3121 if info.expand_info.is_some() {
3122 return None;
3123 }
3124 let row = info.multibuffer_row?;
3125 let display_row = DisplayRow(rows.start.0 + ix as u32);
3126 let active = active_rows.contains_key(&display_row);
3127
3128 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3129 })
3130 .collect()
3131 } else {
3132 Vec::new()
3133 }
3134 }
3135
3136 fn layout_crease_trailers(
3137 &self,
3138 buffer_rows: impl IntoIterator<Item = RowInfo>,
3139 snapshot: &EditorSnapshot,
3140 window: &mut Window,
3141 cx: &mut App,
3142 ) -> Vec<Option<AnyElement>> {
3143 buffer_rows
3144 .into_iter()
3145 .map(|row_info| {
3146 if row_info.expand_info.is_some() {
3147 return None;
3148 }
3149 if let Some(row) = row_info.multibuffer_row {
3150 snapshot.render_crease_trailer(row, window, cx)
3151 } else {
3152 None
3153 }
3154 })
3155 .collect()
3156 }
3157
3158 fn layout_lines(
3159 rows: Range<DisplayRow>,
3160 snapshot: &EditorSnapshot,
3161 style: &EditorStyle,
3162 editor_width: Pixels,
3163 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3164 window: &mut Window,
3165 cx: &mut App,
3166 ) -> Vec<LineWithInvisibles> {
3167 if rows.start >= rows.end {
3168 return Vec::new();
3169 }
3170
3171 // Show the placeholder when the editor is empty
3172 if snapshot.is_empty() {
3173 let font_size = style.text.font_size.to_pixels(window.rem_size());
3174 let placeholder_color = cx.theme().colors().text_placeholder;
3175 let placeholder_text = snapshot.placeholder_text();
3176
3177 let placeholder_lines = placeholder_text
3178 .as_ref()
3179 .map_or("", AsRef::as_ref)
3180 .split('\n')
3181 .skip(rows.start.0 as usize)
3182 .chain(iter::repeat(""))
3183 .take(rows.len());
3184 placeholder_lines
3185 .map(move |line| {
3186 let run = TextRun {
3187 len: line.len(),
3188 font: style.text.font(),
3189 color: placeholder_color,
3190 background_color: None,
3191 underline: None,
3192 strikethrough: None,
3193 };
3194 let line =
3195 window
3196 .text_system()
3197 .shape_line(line.to_string().into(), font_size, &[run]);
3198 LineWithInvisibles {
3199 width: line.width,
3200 len: line.len,
3201 fragments: smallvec![LineFragment::Text(line)],
3202 invisibles: Vec::new(),
3203 font_size,
3204 }
3205 })
3206 .collect()
3207 } else {
3208 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
3209 LineWithInvisibles::from_chunks(
3210 chunks,
3211 &style,
3212 MAX_LINE_LEN,
3213 rows.len(),
3214 &snapshot.mode,
3215 editor_width,
3216 is_row_soft_wrapped,
3217 window,
3218 cx,
3219 )
3220 }
3221 }
3222
3223 fn prepaint_lines(
3224 &self,
3225 start_row: DisplayRow,
3226 line_layouts: &mut [LineWithInvisibles],
3227 line_height: Pixels,
3228 scroll_pixel_position: gpui::Point<Pixels>,
3229 content_origin: gpui::Point<Pixels>,
3230 window: &mut Window,
3231 cx: &mut App,
3232 ) -> SmallVec<[AnyElement; 1]> {
3233 let mut line_elements = SmallVec::new();
3234 for (ix, line) in line_layouts.iter_mut().enumerate() {
3235 let row = start_row + DisplayRow(ix as u32);
3236 line.prepaint(
3237 line_height,
3238 scroll_pixel_position,
3239 row,
3240 content_origin,
3241 &mut line_elements,
3242 window,
3243 cx,
3244 );
3245 }
3246 line_elements
3247 }
3248
3249 fn render_block(
3250 &self,
3251 block: &Block,
3252 available_width: AvailableSpace,
3253 block_id: BlockId,
3254 block_row_start: DisplayRow,
3255 snapshot: &EditorSnapshot,
3256 text_x: Pixels,
3257 rows: &Range<DisplayRow>,
3258 line_layouts: &[LineWithInvisibles],
3259 editor_margins: &EditorMargins,
3260 line_height: Pixels,
3261 em_width: Pixels,
3262 text_hitbox: &Hitbox,
3263 editor_width: Pixels,
3264 scroll_width: &mut Pixels,
3265 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3266 row_block_types: &mut HashMap<DisplayRow, bool>,
3267 selections: &[Selection<Point>],
3268 selected_buffer_ids: &Vec<BufferId>,
3269 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3270 sticky_header_excerpt_id: Option<ExcerptId>,
3271 window: &mut Window,
3272 cx: &mut App,
3273 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3274 let mut x_position = None;
3275 let mut element = match block {
3276 Block::Custom(custom) => {
3277 let block_start = custom.start().to_point(&snapshot.buffer_snapshot);
3278 let block_end = custom.end().to_point(&snapshot.buffer_snapshot);
3279 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3280 return None;
3281 }
3282 let align_to = block_start.to_display_point(snapshot);
3283 let x_and_width = |layout: &LineWithInvisibles| {
3284 Some((
3285 text_x + layout.x_for_index(align_to.column() as usize),
3286 text_x + layout.width,
3287 ))
3288 };
3289 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3290 x_position =
3291 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3292 x_and_width(&layout)
3293 } else {
3294 x_and_width(&layout_line(
3295 align_to.row(),
3296 snapshot,
3297 &self.style,
3298 editor_width,
3299 is_row_soft_wrapped,
3300 window,
3301 cx,
3302 ))
3303 };
3304
3305 let anchor_x = x_position.unwrap().0;
3306
3307 let selected = selections
3308 .binary_search_by(|selection| {
3309 if selection.end <= block_start {
3310 Ordering::Less
3311 } else if selection.start >= block_end {
3312 Ordering::Greater
3313 } else {
3314 Ordering::Equal
3315 }
3316 })
3317 .is_ok();
3318
3319 div()
3320 .size_full()
3321 .children(
3322 (!snapshot.mode.is_minimap() || custom.render_in_minimap).then(|| {
3323 custom.render(&mut BlockContext {
3324 window,
3325 app: cx,
3326 anchor_x,
3327 margins: editor_margins,
3328 line_height,
3329 em_width,
3330 block_id,
3331 selected,
3332 max_width: text_hitbox.size.width.max(*scroll_width),
3333 editor_style: &self.style,
3334 })
3335 }),
3336 )
3337 .into_any()
3338 }
3339
3340 Block::FoldedBuffer {
3341 first_excerpt,
3342 height,
3343 ..
3344 } => {
3345 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
3346 let result = v_flex().id(block_id).w_full().pr(editor_margins.right);
3347
3348 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
3349 result
3350 .child(self.render_buffer_header(
3351 first_excerpt,
3352 true,
3353 selected,
3354 false,
3355 jump_data,
3356 window,
3357 cx,
3358 ))
3359 .into_any_element()
3360 }
3361
3362 Block::ExcerptBoundary {
3363 excerpt,
3364 height,
3365 starts_new_buffer,
3366 ..
3367 } => {
3368 let color = cx.theme().colors().clone();
3369 let mut result = v_flex().id(block_id).w_full();
3370
3371 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
3372
3373 if *starts_new_buffer {
3374 if sticky_header_excerpt_id != Some(excerpt.id) {
3375 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3376
3377 result = result.child(div().pr(editor_margins.right).child(
3378 self.render_buffer_header(
3379 excerpt, false, selected, false, jump_data, window, cx,
3380 ),
3381 ));
3382 } else {
3383 result =
3384 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3385 }
3386 } else {
3387 result = result.child(
3388 h_flex().relative().child(
3389 div()
3390 .top(line_height / 2.)
3391 .absolute()
3392 .w_full()
3393 .h_px()
3394 .bg(color.border_variant),
3395 ),
3396 );
3397 };
3398
3399 result.into_any()
3400 }
3401 };
3402
3403 // Discover the element's content height, then round up to the nearest multiple of line height.
3404 let preliminary_size = element.layout_as_root(
3405 size(available_width, AvailableSpace::MinContent),
3406 window,
3407 cx,
3408 );
3409 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
3410 let final_size = if preliminary_size.height == quantized_height {
3411 preliminary_size
3412 } else {
3413 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
3414 };
3415 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
3416
3417 let mut row = block_row_start;
3418 let mut x_offset = px(0.);
3419 let mut is_block = true;
3420
3421 if let BlockId::Custom(custom_block_id) = block_id {
3422 if block.has_height() {
3423 if block.place_near() {
3424 if let Some((x_target, line_width)) = x_position {
3425 let margin = em_width * 2;
3426 if line_width + final_size.width + margin
3427 < editor_width + editor_margins.gutter.full_width()
3428 && !row_block_types.contains_key(&(row - 1))
3429 && element_height_in_lines == 1
3430 {
3431 x_offset = line_width + margin;
3432 row = row - 1;
3433 is_block = false;
3434 element_height_in_lines = 0;
3435 row_block_types.insert(row, is_block);
3436 } else {
3437 let max_offset = editor_width + editor_margins.gutter.full_width()
3438 - final_size.width;
3439 let min_offset = (x_target + em_width - final_size.width)
3440 .max(editor_margins.gutter.full_width());
3441 x_offset = x_target.min(max_offset).max(min_offset);
3442 }
3443 }
3444 };
3445 if element_height_in_lines != block.height() {
3446 resized_blocks.insert(custom_block_id, element_height_in_lines);
3447 }
3448 }
3449 }
3450 for i in 0..element_height_in_lines {
3451 row_block_types.insert(row + i, is_block);
3452 }
3453
3454 Some((element, final_size, row, x_offset))
3455 }
3456
3457 fn render_buffer_header(
3458 &self,
3459 for_excerpt: &ExcerptInfo,
3460 is_folded: bool,
3461 is_selected: bool,
3462 is_sticky: bool,
3463 jump_data: JumpData,
3464 window: &mut Window,
3465 cx: &mut App,
3466 ) -> Div {
3467 let editor = self.editor.read(cx);
3468 let file_status = editor
3469 .buffer
3470 .read(cx)
3471 .all_diff_hunks_expanded()
3472 .then(|| {
3473 editor
3474 .project
3475 .as_ref()?
3476 .read(cx)
3477 .status_for_buffer_id(for_excerpt.buffer_id, cx)
3478 })
3479 .flatten();
3480
3481 let include_root = editor
3482 .project
3483 .as_ref()
3484 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
3485 .unwrap_or_default();
3486 let can_open_excerpts = Editor::can_open_excerpts_in_file(for_excerpt.buffer.file());
3487 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
3488 let filename = path
3489 .as_ref()
3490 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
3491 let parent_path = path.as_ref().and_then(|path| {
3492 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
3493 });
3494 let focus_handle = editor.focus_handle(cx);
3495 let colors = cx.theme().colors();
3496
3497 div()
3498 .p_1()
3499 .w_full()
3500 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
3501 .child(
3502 h_flex()
3503 .size_full()
3504 .gap_2()
3505 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
3506 .pl_0p5()
3507 .pr_5()
3508 .rounded_sm()
3509 .when(is_sticky, |el| el.shadow_md())
3510 .border_1()
3511 .map(|div| {
3512 let border_color = if is_selected
3513 && is_folded
3514 && focus_handle.contains_focused(window, cx)
3515 {
3516 colors.border_focused
3517 } else {
3518 colors.border
3519 };
3520 div.border_color(border_color)
3521 })
3522 .bg(colors.editor_subheader_background)
3523 .hover(|style| style.bg(colors.element_hover))
3524 .map(|header| {
3525 let editor = self.editor.clone();
3526 let buffer_id = for_excerpt.buffer_id;
3527 let toggle_chevron_icon =
3528 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
3529 header.child(
3530 div()
3531 .hover(|style| style.bg(colors.element_selected))
3532 .rounded_xs()
3533 .child(
3534 ButtonLike::new("toggle-buffer-fold")
3535 .style(ui::ButtonStyle::Transparent)
3536 .height(px(28.).into())
3537 .width(px(28.).into())
3538 .children(toggle_chevron_icon)
3539 .tooltip({
3540 let focus_handle = focus_handle.clone();
3541 move |window, cx| {
3542 Tooltip::for_action_in(
3543 "Toggle Excerpt Fold",
3544 &ToggleFold,
3545 &focus_handle,
3546 window,
3547 cx,
3548 )
3549 }
3550 })
3551 .on_click(move |_, _, cx| {
3552 if is_folded {
3553 editor.update(cx, |editor, cx| {
3554 editor.unfold_buffer(buffer_id, cx);
3555 });
3556 } else {
3557 editor.update(cx, |editor, cx| {
3558 editor.fold_buffer(buffer_id, cx);
3559 });
3560 }
3561 }),
3562 ),
3563 )
3564 })
3565 .children(
3566 editor
3567 .addons
3568 .values()
3569 .filter_map(|addon| {
3570 addon.render_buffer_header_controls(for_excerpt, window, cx)
3571 })
3572 .take(1),
3573 )
3574 .child(
3575 h_flex()
3576 .cursor_pointer()
3577 .id("path header block")
3578 .size_full()
3579 .justify_between()
3580 .child(
3581 h_flex()
3582 .gap_2()
3583 .child(
3584 Label::new(
3585 filename
3586 .map(SharedString::from)
3587 .unwrap_or_else(|| "untitled".into()),
3588 )
3589 .single_line()
3590 .when_some(
3591 file_status,
3592 |el, status| {
3593 el.color(if status.is_conflicted() {
3594 Color::Conflict
3595 } else if status.is_modified() {
3596 Color::Modified
3597 } else if status.is_deleted() {
3598 Color::Disabled
3599 } else {
3600 Color::Created
3601 })
3602 .when(status.is_deleted(), |el| el.strikethrough())
3603 },
3604 ),
3605 )
3606 .when_some(parent_path, |then, path| {
3607 then.child(div().child(path).text_color(
3608 if file_status.is_some_and(FileStatus::is_deleted) {
3609 colors.text_disabled
3610 } else {
3611 colors.text_muted
3612 },
3613 ))
3614 }),
3615 )
3616 .when(can_open_excerpts && is_selected && path.is_some(), |el| {
3617 el.child(
3618 h_flex()
3619 .id("jump-to-file-button")
3620 .gap_2p5()
3621 .child(Label::new("Jump To File"))
3622 .children(
3623 KeyBinding::for_action_in(
3624 &OpenExcerpts,
3625 &focus_handle,
3626 window,
3627 cx,
3628 )
3629 .map(|binding| binding.into_any_element()),
3630 ),
3631 )
3632 })
3633 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
3634 .on_click(window.listener_for(&self.editor, {
3635 move |editor, e: &ClickEvent, window, cx| {
3636 editor.open_excerpts_common(
3637 Some(jump_data.clone()),
3638 e.down.modifiers.secondary(),
3639 window,
3640 cx,
3641 );
3642 }
3643 })),
3644 ),
3645 )
3646 }
3647
3648 fn render_blocks(
3649 &self,
3650 rows: Range<DisplayRow>,
3651 snapshot: &EditorSnapshot,
3652 hitbox: &Hitbox,
3653 text_hitbox: &Hitbox,
3654 editor_width: Pixels,
3655 scroll_width: &mut Pixels,
3656 editor_margins: &EditorMargins,
3657 em_width: Pixels,
3658 text_x: Pixels,
3659 line_height: Pixels,
3660 line_layouts: &mut [LineWithInvisibles],
3661 selections: &[Selection<Point>],
3662 selected_buffer_ids: &Vec<BufferId>,
3663 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3664 sticky_header_excerpt_id: Option<ExcerptId>,
3665 window: &mut Window,
3666 cx: &mut App,
3667 ) -> Result<(Vec<BlockLayout>, HashMap<DisplayRow, bool>), HashMap<CustomBlockId, u32>> {
3668 let (fixed_blocks, non_fixed_blocks) = snapshot
3669 .blocks_in_range(rows.clone())
3670 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
3671
3672 let mut focused_block = self
3673 .editor
3674 .update(cx, |editor, _| editor.take_focused_block());
3675 let mut fixed_block_max_width = Pixels::ZERO;
3676 let mut blocks = Vec::new();
3677 let mut resized_blocks = HashMap::default();
3678 let mut row_block_types = HashMap::default();
3679
3680 for (row, block) in fixed_blocks {
3681 let block_id = block.id();
3682
3683 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3684 focused_block = None;
3685 }
3686
3687 if let Some((element, element_size, row, x_offset)) = self.render_block(
3688 block,
3689 AvailableSpace::MinContent,
3690 block_id,
3691 row,
3692 snapshot,
3693 text_x,
3694 &rows,
3695 line_layouts,
3696 editor_margins,
3697 line_height,
3698 em_width,
3699 text_hitbox,
3700 editor_width,
3701 scroll_width,
3702 &mut resized_blocks,
3703 &mut row_block_types,
3704 selections,
3705 selected_buffer_ids,
3706 is_row_soft_wrapped,
3707 sticky_header_excerpt_id,
3708 window,
3709 cx,
3710 ) {
3711 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
3712 blocks.push(BlockLayout {
3713 id: block_id,
3714 x_offset,
3715 row: Some(row),
3716 element,
3717 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
3718 style: BlockStyle::Fixed,
3719 overlaps_gutter: true,
3720 is_buffer_header: block.is_buffer_header(),
3721 });
3722 }
3723 }
3724
3725 for (row, block) in non_fixed_blocks {
3726 let style = block.style();
3727 let width = match (style, block.place_near()) {
3728 (_, true) => AvailableSpace::MinContent,
3729 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
3730 (BlockStyle::Flex, _) => hitbox
3731 .size
3732 .width
3733 .max(fixed_block_max_width)
3734 .max(editor_margins.gutter.width + *scroll_width)
3735 .into(),
3736 (BlockStyle::Fixed, _) => unreachable!(),
3737 };
3738 let block_id = block.id();
3739
3740 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3741 focused_block = None;
3742 }
3743
3744 if let Some((element, element_size, row, x_offset)) = self.render_block(
3745 block,
3746 width,
3747 block_id,
3748 row,
3749 snapshot,
3750 text_x,
3751 &rows,
3752 line_layouts,
3753 editor_margins,
3754 line_height,
3755 em_width,
3756 text_hitbox,
3757 editor_width,
3758 scroll_width,
3759 &mut resized_blocks,
3760 &mut row_block_types,
3761 selections,
3762 selected_buffer_ids,
3763 is_row_soft_wrapped,
3764 sticky_header_excerpt_id,
3765 window,
3766 cx,
3767 ) {
3768 blocks.push(BlockLayout {
3769 id: block_id,
3770 x_offset,
3771 row: Some(row),
3772 element,
3773 available_space: size(width, element_size.height.into()),
3774 style,
3775 overlaps_gutter: !block.place_near(),
3776 is_buffer_header: block.is_buffer_header(),
3777 });
3778 }
3779 }
3780
3781 if let Some(focused_block) = focused_block {
3782 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3783 if focus_handle.is_focused(window) {
3784 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3785 let style = block.style();
3786 let width = match style {
3787 BlockStyle::Fixed => AvailableSpace::MinContent,
3788 BlockStyle::Flex => AvailableSpace::Definite(
3789 hitbox
3790 .size
3791 .width
3792 .max(fixed_block_max_width)
3793 .max(editor_margins.gutter.width + *scroll_width),
3794 ),
3795 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3796 };
3797
3798 if let Some((element, element_size, _, x_offset)) = self.render_block(
3799 &block,
3800 width,
3801 focused_block.id,
3802 rows.end,
3803 snapshot,
3804 text_x,
3805 &rows,
3806 line_layouts,
3807 editor_margins,
3808 line_height,
3809 em_width,
3810 text_hitbox,
3811 editor_width,
3812 scroll_width,
3813 &mut resized_blocks,
3814 &mut row_block_types,
3815 selections,
3816 selected_buffer_ids,
3817 is_row_soft_wrapped,
3818 sticky_header_excerpt_id,
3819 window,
3820 cx,
3821 ) {
3822 blocks.push(BlockLayout {
3823 id: block.id(),
3824 x_offset,
3825 row: None,
3826 element,
3827 available_space: size(width, element_size.height.into()),
3828 style,
3829 overlaps_gutter: true,
3830 is_buffer_header: block.is_buffer_header(),
3831 });
3832 }
3833 }
3834 }
3835 }
3836 }
3837
3838 if resized_blocks.is_empty() {
3839 *scroll_width =
3840 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
3841 Ok((blocks, row_block_types))
3842 } else {
3843 Err(resized_blocks)
3844 }
3845 }
3846
3847 fn layout_blocks(
3848 &self,
3849 blocks: &mut Vec<BlockLayout>,
3850 hitbox: &Hitbox,
3851 line_height: Pixels,
3852 scroll_pixel_position: gpui::Point<Pixels>,
3853 window: &mut Window,
3854 cx: &mut App,
3855 ) {
3856 for block in blocks {
3857 let mut origin = if let Some(row) = block.row {
3858 hitbox.origin
3859 + point(
3860 block.x_offset,
3861 row.as_f32() * line_height - scroll_pixel_position.y,
3862 )
3863 } else {
3864 // Position the block outside the visible area
3865 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3866 };
3867
3868 if !matches!(block.style, BlockStyle::Sticky) {
3869 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3870 }
3871
3872 let focus_handle =
3873 block
3874 .element
3875 .prepaint_as_root(origin, block.available_space, window, cx);
3876
3877 if let Some(focus_handle) = focus_handle {
3878 self.editor.update(cx, |editor, _cx| {
3879 editor.set_focused_block(FocusedBlock {
3880 id: block.id,
3881 focus_handle: focus_handle.downgrade(),
3882 });
3883 });
3884 }
3885 }
3886 }
3887
3888 fn layout_sticky_buffer_header(
3889 &self,
3890 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
3891 scroll_position: f32,
3892 line_height: Pixels,
3893 right_margin: Pixels,
3894 snapshot: &EditorSnapshot,
3895 hitbox: &Hitbox,
3896 selected_buffer_ids: &Vec<BufferId>,
3897 blocks: &[BlockLayout],
3898 window: &mut Window,
3899 cx: &mut App,
3900 ) -> AnyElement {
3901 let jump_data = header_jump_data(
3902 snapshot,
3903 DisplayRow(scroll_position as u32),
3904 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3905 excerpt,
3906 );
3907
3908 let editor_bg_color = cx.theme().colors().editor_background;
3909
3910 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3911
3912 let available_width = hitbox.bounds.size.width - right_margin;
3913
3914 let mut header = v_flex()
3915 .relative()
3916 .child(
3917 div()
3918 .w(available_width)
3919 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3920 .bg(linear_gradient(
3921 0.,
3922 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3923 linear_color_stop(editor_bg_color, 0.6),
3924 ))
3925 .absolute()
3926 .top_0(),
3927 )
3928 .child(
3929 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
3930 .into_any_element(),
3931 )
3932 .into_any_element();
3933
3934 let mut origin = hitbox.origin;
3935 // Move floating header up to avoid colliding with the next buffer header.
3936 for block in blocks.iter() {
3937 if !block.is_buffer_header {
3938 continue;
3939 }
3940
3941 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else {
3942 continue;
3943 };
3944
3945 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
3946 let offset = scroll_position - max_row as f32;
3947
3948 if offset > 0.0 {
3949 origin.y -= offset * line_height;
3950 }
3951 break;
3952 }
3953
3954 let size = size(
3955 AvailableSpace::Definite(available_width),
3956 AvailableSpace::MinContent,
3957 );
3958
3959 header.prepaint_as_root(origin, size, window, cx);
3960
3961 header
3962 }
3963
3964 fn layout_cursor_popovers(
3965 &self,
3966 line_height: Pixels,
3967 text_hitbox: &Hitbox,
3968 content_origin: gpui::Point<Pixels>,
3969 right_margin: Pixels,
3970 start_row: DisplayRow,
3971 scroll_pixel_position: gpui::Point<Pixels>,
3972 line_layouts: &[LineWithInvisibles],
3973 cursor: DisplayPoint,
3974 cursor_point: Point,
3975 style: &EditorStyle,
3976 window: &mut Window,
3977 cx: &mut App,
3978 ) -> Option<ContextMenuLayout> {
3979 let mut min_menu_height = Pixels::ZERO;
3980 let mut max_menu_height = Pixels::ZERO;
3981 let mut height_above_menu = Pixels::ZERO;
3982 let height_below_menu = Pixels::ZERO;
3983 let mut edit_prediction_popover_visible = false;
3984 let mut context_menu_visible = false;
3985 let context_menu_placement;
3986
3987 {
3988 let editor = self.editor.read(cx);
3989 if editor
3990 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
3991 {
3992 height_above_menu +=
3993 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
3994 edit_prediction_popover_visible = true;
3995 }
3996
3997 if editor.context_menu_visible() {
3998 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
3999 let (min_height_in_lines, max_height_in_lines) = editor
4000 .context_menu_options
4001 .as_ref()
4002 .map_or((3, 12), |options| {
4003 (options.min_entries_visible, options.max_entries_visible)
4004 });
4005
4006 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4007 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4008 context_menu_visible = true;
4009 }
4010 }
4011 context_menu_placement = editor
4012 .context_menu_options
4013 .as_ref()
4014 .and_then(|options| options.placement.clone());
4015 }
4016
4017 let visible = edit_prediction_popover_visible || context_menu_visible;
4018 if !visible {
4019 return None;
4020 }
4021
4022 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4023 let target_position = content_origin
4024 + gpui::Point {
4025 x: cmp::max(
4026 px(0.),
4027 cursor_row_layout.x_for_index(cursor.column() as usize)
4028 - scroll_pixel_position.x,
4029 ),
4030 y: cmp::max(
4031 px(0.),
4032 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
4033 ),
4034 };
4035
4036 let viewport_bounds =
4037 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4038 right: -right_margin - MENU_GAP,
4039 ..Default::default()
4040 });
4041
4042 let min_height = height_above_menu + min_menu_height + height_below_menu;
4043 let max_height = height_above_menu + max_menu_height + height_below_menu;
4044 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4045 target_position,
4046 line_height,
4047 min_height,
4048 max_height,
4049 context_menu_placement,
4050 text_hitbox,
4051 viewport_bounds,
4052 window,
4053 cx,
4054 |height, max_width_for_stable_x, y_flipped, window, cx| {
4055 // First layout the menu to get its size - others can be at least this wide.
4056 let context_menu = if context_menu_visible {
4057 let menu_height = if y_flipped {
4058 height - height_below_menu
4059 } else {
4060 height - height_above_menu
4061 };
4062 let mut element = self
4063 .render_context_menu(line_height, menu_height, window, cx)
4064 .expect("Visible context menu should always render.");
4065 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4066 Some((CursorPopoverType::CodeContextMenu, element, size))
4067 } else {
4068 None
4069 };
4070 let min_width = context_menu
4071 .as_ref()
4072 .map_or(px(0.), |(_, _, size)| size.width);
4073 let max_width = max_width_for_stable_x.max(
4074 context_menu
4075 .as_ref()
4076 .map_or(px(0.), |(_, _, size)| size.width),
4077 );
4078
4079 let edit_prediction = if edit_prediction_popover_visible {
4080 self.editor.update(cx, move |editor, cx| {
4081 let accept_binding =
4082 editor.accept_edit_prediction_keybind(false, window, cx);
4083 let mut element = editor.render_edit_prediction_cursor_popover(
4084 min_width,
4085 max_width,
4086 cursor_point,
4087 style,
4088 accept_binding.keystroke(),
4089 window,
4090 cx,
4091 )?;
4092 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4093 Some((CursorPopoverType::EditPrediction, element, size))
4094 })
4095 } else {
4096 None
4097 };
4098 vec![edit_prediction, context_menu]
4099 .into_iter()
4100 .flatten()
4101 .collect::<Vec<_>>()
4102 },
4103 )?;
4104
4105 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
4106 .iter()
4107 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
4108 let last_ix = laid_out_popovers.len() - 1;
4109 let menu_is_last = menu_ix == last_ix;
4110 let first_popover_bounds = laid_out_popovers[0].1;
4111 let last_popover_bounds = laid_out_popovers[last_ix].1;
4112
4113 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
4114 // right, and otherwise it goes below or to the right.
4115 let mut target_bounds = Bounds::from_corners(
4116 first_popover_bounds.origin,
4117 last_popover_bounds.bottom_right(),
4118 );
4119 target_bounds.size.width = menu_bounds.size.width;
4120
4121 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
4122 // based on this is preferred for layout stability.
4123 let mut max_target_bounds = target_bounds;
4124 max_target_bounds.size.height = max_height;
4125 if y_flipped {
4126 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
4127 }
4128
4129 // Add spacing around `target_bounds` and `max_target_bounds`.
4130 let mut extend_amount = Edges::all(MENU_GAP);
4131 if y_flipped {
4132 extend_amount.bottom = line_height;
4133 } else {
4134 extend_amount.top = line_height;
4135 }
4136 let target_bounds = target_bounds.extend(extend_amount);
4137 let max_target_bounds = max_target_bounds.extend(extend_amount);
4138
4139 let must_place_above_or_below =
4140 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
4141 laid_out_popovers[menu_ix + 1..]
4142 .iter()
4143 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
4144 } else {
4145 false
4146 };
4147
4148 let aside_bounds = self.layout_context_menu_aside(
4149 y_flipped,
4150 *menu_bounds,
4151 target_bounds,
4152 max_target_bounds,
4153 max_menu_height,
4154 must_place_above_or_below,
4155 text_hitbox,
4156 viewport_bounds,
4157 window,
4158 cx,
4159 );
4160
4161 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
4162 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
4163 Some(*bounds)
4164 } else {
4165 None
4166 }
4167 }) {
4168 let bounds = if let Some(aside_bounds) = aside_bounds {
4169 menu_bounds.union(&aside_bounds)
4170 } else {
4171 menu_bounds
4172 };
4173 return Some(ContextMenuLayout { y_flipped, bounds });
4174 }
4175
4176 None
4177 }
4178
4179 fn layout_gutter_menu(
4180 &self,
4181 line_height: Pixels,
4182 text_hitbox: &Hitbox,
4183 content_origin: gpui::Point<Pixels>,
4184 right_margin: Pixels,
4185 scroll_pixel_position: gpui::Point<Pixels>,
4186 gutter_overshoot: Pixels,
4187 window: &mut Window,
4188 cx: &mut App,
4189 ) {
4190 let editor = self.editor.read(cx);
4191 if !editor.context_menu_visible() {
4192 return;
4193 }
4194 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
4195 editor.context_menu_origin()
4196 else {
4197 return;
4198 };
4199 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
4200 // indicator than just a plain first column of the text field.
4201 let target_position = content_origin
4202 + gpui::Point {
4203 x: -gutter_overshoot,
4204 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
4205 };
4206
4207 let (min_height_in_lines, max_height_in_lines) = editor
4208 .context_menu_options
4209 .as_ref()
4210 .map_or((3, 12), |options| {
4211 (options.min_entries_visible, options.max_entries_visible)
4212 });
4213
4214 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4215 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4216 let viewport_bounds =
4217 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4218 right: -right_margin - MENU_GAP,
4219 ..Default::default()
4220 });
4221 self.layout_popovers_above_or_below_line(
4222 target_position,
4223 line_height,
4224 min_height,
4225 max_height,
4226 editor
4227 .context_menu_options
4228 .as_ref()
4229 .and_then(|options| options.placement.clone()),
4230 text_hitbox,
4231 viewport_bounds,
4232 window,
4233 cx,
4234 move |height, _max_width_for_stable_x, _, window, cx| {
4235 let mut element = self
4236 .render_context_menu(line_height, height, window, cx)
4237 .expect("Visible context menu should always render.");
4238 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4239 vec![(CursorPopoverType::CodeContextMenu, element, size)]
4240 },
4241 );
4242 }
4243
4244 fn layout_popovers_above_or_below_line(
4245 &self,
4246 target_position: gpui::Point<Pixels>,
4247 line_height: Pixels,
4248 min_height: Pixels,
4249 max_height: Pixels,
4250 placement: Option<ContextMenuPlacement>,
4251 text_hitbox: &Hitbox,
4252 viewport_bounds: Bounds<Pixels>,
4253 window: &mut Window,
4254 cx: &mut App,
4255 make_sized_popovers: impl FnOnce(
4256 Pixels,
4257 Pixels,
4258 bool,
4259 &mut Window,
4260 &mut App,
4261 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
4262 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
4263 let text_style = TextStyleRefinement {
4264 line_height: Some(DefiniteLength::Fraction(
4265 BufferLineHeight::Comfortable.value(),
4266 )),
4267 ..Default::default()
4268 };
4269 window.with_text_style(Some(text_style), |window| {
4270 // If the max height won't fit below and there is more space above, put it above the line.
4271 let bottom_y_when_flipped = target_position.y - line_height;
4272 let available_above = bottom_y_when_flipped - text_hitbox.top();
4273 let available_below = text_hitbox.bottom() - target_position.y;
4274 let y_overflows_below = max_height > available_below;
4275 let mut y_flipped = match placement {
4276 Some(ContextMenuPlacement::Above) => true,
4277 Some(ContextMenuPlacement::Below) => false,
4278 None => y_overflows_below && available_above > available_below,
4279 };
4280 let mut height = cmp::min(
4281 max_height,
4282 if y_flipped {
4283 available_above
4284 } else {
4285 available_below
4286 },
4287 );
4288
4289 // If the min height doesn't fit within text bounds, instead fit within the window.
4290 if height < min_height {
4291 let available_above = bottom_y_when_flipped;
4292 let available_below = viewport_bounds.bottom() - target_position.y;
4293 let (y_flipped_override, height_override) = match placement {
4294 Some(ContextMenuPlacement::Above) => {
4295 (true, cmp::min(available_above, min_height))
4296 }
4297 Some(ContextMenuPlacement::Below) => {
4298 (false, cmp::min(available_below, min_height))
4299 }
4300 None => {
4301 if available_below > min_height {
4302 (false, min_height)
4303 } else if available_above > min_height {
4304 (true, min_height)
4305 } else if available_above > available_below {
4306 (true, available_above)
4307 } else {
4308 (false, available_below)
4309 }
4310 }
4311 };
4312 y_flipped = y_flipped_override;
4313 height = height_override;
4314 }
4315
4316 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
4317
4318 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
4319 // for very narrow windows.
4320 let popovers =
4321 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
4322 if popovers.is_empty() {
4323 return None;
4324 }
4325
4326 let max_width = popovers
4327 .iter()
4328 .map(|(_, _, size)| size.width)
4329 .max()
4330 .unwrap_or_default();
4331
4332 let mut current_position = gpui::Point {
4333 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
4334 // overflow. Include space for the scrollbar.
4335 x: target_position
4336 .x
4337 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
4338 y: if y_flipped {
4339 bottom_y_when_flipped
4340 } else {
4341 target_position.y
4342 },
4343 };
4344
4345 let mut laid_out_popovers = popovers
4346 .into_iter()
4347 .map(|(popover_type, element, size)| {
4348 if y_flipped {
4349 current_position.y -= size.height;
4350 }
4351 let position = current_position;
4352 window.defer_draw(element, current_position, 1);
4353 if !y_flipped {
4354 current_position.y += size.height + MENU_GAP;
4355 } else {
4356 current_position.y -= MENU_GAP;
4357 }
4358 (popover_type, Bounds::new(position, size))
4359 })
4360 .collect::<Vec<_>>();
4361
4362 if y_flipped {
4363 laid_out_popovers.reverse();
4364 }
4365
4366 Some((laid_out_popovers, y_flipped))
4367 })
4368 }
4369
4370 fn layout_context_menu_aside(
4371 &self,
4372 y_flipped: bool,
4373 menu_bounds: Bounds<Pixels>,
4374 target_bounds: Bounds<Pixels>,
4375 max_target_bounds: Bounds<Pixels>,
4376 max_height: Pixels,
4377 must_place_above_or_below: bool,
4378 text_hitbox: &Hitbox,
4379 viewport_bounds: Bounds<Pixels>,
4380 window: &mut Window,
4381 cx: &mut App,
4382 ) -> Option<Bounds<Pixels>> {
4383 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
4384 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
4385 && !must_place_above_or_below
4386 {
4387 let max_width = cmp::min(
4388 available_within_viewport.right - px(1.),
4389 MENU_ASIDE_MAX_WIDTH,
4390 );
4391 let mut aside = self.render_context_menu_aside(
4392 size(max_width, max_height - POPOVER_Y_PADDING),
4393 window,
4394 cx,
4395 )?;
4396 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
4397 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
4398 Some((aside, right_position, size))
4399 } else {
4400 let max_size = size(
4401 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
4402 // won't be needed here.
4403 cmp::min(
4404 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
4405 viewport_bounds.right(),
4406 ),
4407 cmp::min(
4408 max_height,
4409 cmp::max(
4410 available_within_viewport.top,
4411 available_within_viewport.bottom,
4412 ),
4413 ) - POPOVER_Y_PADDING,
4414 );
4415 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
4416 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
4417
4418 let top_position = point(
4419 menu_bounds.origin.x,
4420 target_bounds.top() - actual_size.height,
4421 );
4422 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
4423
4424 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
4425 // Prefer to fit on the same side of the line as the menu, then on the other side of
4426 // the line.
4427 if !y_flipped && wanted.height < available.bottom {
4428 Some(bottom_position)
4429 } else if !y_flipped && wanted.height < available.top {
4430 Some(top_position)
4431 } else if y_flipped && wanted.height < available.top {
4432 Some(top_position)
4433 } else if y_flipped && wanted.height < available.bottom {
4434 Some(bottom_position)
4435 } else {
4436 None
4437 }
4438 };
4439
4440 // Prefer choosing a direction using max sizes rather than actual size for stability.
4441 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
4442 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
4443 let aside_position = fit_within(available_within_text, wanted)
4444 // Fallback: fit max size in window.
4445 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
4446 // Fallback: fit actual size in window.
4447 .or_else(|| fit_within(available_within_viewport, actual_size));
4448
4449 aside_position.map(|position| (aside, position, actual_size))
4450 };
4451
4452 // Skip drawing if it doesn't fit anywhere.
4453 if let Some((aside, position, size)) = positioned_aside {
4454 let aside_bounds = Bounds::new(position, size);
4455 window.defer_draw(aside, position, 2);
4456 return Some(aside_bounds);
4457 }
4458
4459 None
4460 }
4461
4462 fn render_context_menu(
4463 &self,
4464 line_height: Pixels,
4465 height: Pixels,
4466 window: &mut Window,
4467 cx: &mut App,
4468 ) -> Option<AnyElement> {
4469 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
4470 self.editor.update(cx, |editor, cx| {
4471 editor.render_context_menu(&self.style, max_height_in_lines, window, cx)
4472 })
4473 }
4474
4475 fn render_context_menu_aside(
4476 &self,
4477 max_size: Size<Pixels>,
4478 window: &mut Window,
4479 cx: &mut App,
4480 ) -> Option<AnyElement> {
4481 if max_size.width < px(100.) || max_size.height < px(12.) {
4482 None
4483 } else {
4484 self.editor.update(cx, |editor, cx| {
4485 editor.render_context_menu_aside(max_size, window, cx)
4486 })
4487 }
4488 }
4489
4490 fn layout_mouse_context_menu(
4491 &self,
4492 editor_snapshot: &EditorSnapshot,
4493 visible_range: Range<DisplayRow>,
4494 content_origin: gpui::Point<Pixels>,
4495 window: &mut Window,
4496 cx: &mut App,
4497 ) -> Option<AnyElement> {
4498 let position = self.editor.update(cx, |editor, _cx| {
4499 let visible_start_point = editor.display_to_pixel_point(
4500 DisplayPoint::new(visible_range.start, 0),
4501 editor_snapshot,
4502 window,
4503 )?;
4504 let visible_end_point = editor.display_to_pixel_point(
4505 DisplayPoint::new(visible_range.end, 0),
4506 editor_snapshot,
4507 window,
4508 )?;
4509
4510 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4511 let (source_display_point, position) = match mouse_context_menu.position {
4512 MenuPosition::PinnedToScreen(point) => (None, point),
4513 MenuPosition::PinnedToEditor { source, offset } => {
4514 let source_display_point = source.to_display_point(editor_snapshot);
4515 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
4516 let position = content_origin + source_point + offset;
4517 (Some(source_display_point), position)
4518 }
4519 };
4520
4521 let source_included = source_display_point.map_or(true, |source_display_point| {
4522 visible_range
4523 .to_inclusive()
4524 .contains(&source_display_point.row())
4525 });
4526 let position_included =
4527 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
4528 if !source_included && !position_included {
4529 None
4530 } else {
4531 Some(position)
4532 }
4533 })?;
4534
4535 let text_style = TextStyleRefinement {
4536 line_height: Some(DefiniteLength::Fraction(
4537 BufferLineHeight::Comfortable.value(),
4538 )),
4539 ..Default::default()
4540 };
4541 window.with_text_style(Some(text_style), |window| {
4542 let mut element = self.editor.read_with(cx, |editor, _| {
4543 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4544 let context_menu = mouse_context_menu.context_menu.clone();
4545
4546 Some(
4547 deferred(
4548 anchored()
4549 .position(position)
4550 .child(context_menu)
4551 .anchor(Corner::TopLeft)
4552 .snap_to_window_with_margin(px(8.)),
4553 )
4554 .with_priority(1)
4555 .into_any(),
4556 )
4557 })?;
4558
4559 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
4560 Some(element)
4561 })
4562 }
4563
4564 fn layout_hover_popovers(
4565 &self,
4566 snapshot: &EditorSnapshot,
4567 hitbox: &Hitbox,
4568 visible_display_row_range: Range<DisplayRow>,
4569 content_origin: gpui::Point<Pixels>,
4570 scroll_pixel_position: gpui::Point<Pixels>,
4571 line_layouts: &[LineWithInvisibles],
4572 line_height: Pixels,
4573 em_width: Pixels,
4574 context_menu_layout: Option<ContextMenuLayout>,
4575 window: &mut Window,
4576 cx: &mut App,
4577 ) {
4578 struct MeasuredHoverPopover {
4579 element: AnyElement,
4580 size: Size<Pixels>,
4581 horizontal_offset: Pixels,
4582 }
4583
4584 let max_size = size(
4585 (120. * em_width) // Default size
4586 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4587 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4588 (16. * line_height) // Default size
4589 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4590 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4591 );
4592
4593 let hover_popovers = self.editor.update(cx, |editor, cx| {
4594 editor.hover_state.render(
4595 snapshot,
4596 visible_display_row_range.clone(),
4597 max_size,
4598 window,
4599 cx,
4600 )
4601 });
4602 let Some((position, hover_popovers)) = hover_popovers else {
4603 return;
4604 };
4605
4606 // This is safe because we check on layout whether the required row is available
4607 let hovered_row_layout =
4608 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4609
4610 // Compute Hovered Point
4611 let x =
4612 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4613 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4614 let hovered_point = content_origin + point(x, y);
4615
4616 let mut overall_height = Pixels::ZERO;
4617 let mut measured_hover_popovers = Vec::new();
4618 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
4619 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4620 let horizontal_offset =
4621 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
4622 .min(Pixels::ZERO);
4623 match position {
4624 itertools::Position::Middle | itertools::Position::Last => {
4625 overall_height += HOVER_POPOVER_GAP
4626 }
4627 _ => {}
4628 }
4629 overall_height += size.height;
4630 measured_hover_popovers.push(MeasuredHoverPopover {
4631 element: hover_popover,
4632 size,
4633 horizontal_offset,
4634 });
4635 }
4636
4637 fn draw_occluder(
4638 width: Pixels,
4639 origin: gpui::Point<Pixels>,
4640 window: &mut Window,
4641 cx: &mut App,
4642 ) {
4643 let mut occlusion = div()
4644 .size_full()
4645 .occlude()
4646 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4647 .into_any_element();
4648 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4649 window.defer_draw(occlusion, origin, 2);
4650 }
4651
4652 fn place_popovers_above(
4653 hovered_point: gpui::Point<Pixels>,
4654 measured_hover_popovers: Vec<MeasuredHoverPopover>,
4655 window: &mut Window,
4656 cx: &mut App,
4657 ) {
4658 let mut current_y = hovered_point.y;
4659 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4660 let size = popover.size;
4661 let popover_origin = point(
4662 hovered_point.x + popover.horizontal_offset,
4663 current_y - size.height,
4664 );
4665
4666 window.defer_draw(popover.element, popover_origin, 2);
4667 if position != itertools::Position::Last {
4668 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4669 draw_occluder(size.width, origin, window, cx);
4670 }
4671
4672 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4673 }
4674 }
4675
4676 fn place_popovers_below(
4677 hovered_point: gpui::Point<Pixels>,
4678 measured_hover_popovers: Vec<MeasuredHoverPopover>,
4679 line_height: Pixels,
4680 window: &mut Window,
4681 cx: &mut App,
4682 ) {
4683 let mut current_y = hovered_point.y + line_height;
4684 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4685 let size = popover.size;
4686 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4687
4688 window.defer_draw(popover.element, popover_origin, 2);
4689 if position != itertools::Position::Last {
4690 let origin = point(popover_origin.x, popover_origin.y + size.height);
4691 draw_occluder(size.width, origin, window, cx);
4692 }
4693
4694 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4695 }
4696 }
4697
4698 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
4699 context_menu_layout
4700 .as_ref()
4701 .map_or(false, |menu| bounds.intersects(&menu.bounds))
4702 };
4703
4704 let can_place_above = {
4705 let mut bounds_above = Vec::new();
4706 let mut current_y = hovered_point.y;
4707 for popover in &measured_hover_popovers {
4708 let size = popover.size;
4709 let popover_origin = point(
4710 hovered_point.x + popover.horizontal_offset,
4711 current_y - size.height,
4712 );
4713 bounds_above.push(Bounds::new(popover_origin, size));
4714 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4715 }
4716 bounds_above
4717 .iter()
4718 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
4719 };
4720
4721 let can_place_below = || {
4722 let mut bounds_below = Vec::new();
4723 let mut current_y = hovered_point.y + line_height;
4724 for popover in &measured_hover_popovers {
4725 let size = popover.size;
4726 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4727 bounds_below.push(Bounds::new(popover_origin, size));
4728 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4729 }
4730 bounds_below
4731 .iter()
4732 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
4733 };
4734
4735 if can_place_above {
4736 // try placing above hovered point
4737 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
4738 } else if can_place_below() {
4739 // try placing below hovered point
4740 place_popovers_below(
4741 hovered_point,
4742 measured_hover_popovers,
4743 line_height,
4744 window,
4745 cx,
4746 );
4747 } else {
4748 // try to place popovers around the context menu
4749 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
4750 let total_width = measured_hover_popovers
4751 .iter()
4752 .map(|p| p.size.width)
4753 .max()
4754 .unwrap_or(Pixels::ZERO);
4755 let y_for_horizontal_positioning = if menu.y_flipped {
4756 menu.bounds.bottom() - overall_height
4757 } else {
4758 menu.bounds.top()
4759 };
4760 let possible_origins = vec![
4761 // left of context menu
4762 point(
4763 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
4764 y_for_horizontal_positioning,
4765 ),
4766 // right of context menu
4767 point(
4768 menu.bounds.right() + HOVER_POPOVER_GAP,
4769 y_for_horizontal_positioning,
4770 ),
4771 // top of context menu
4772 point(
4773 menu.bounds.left(),
4774 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
4775 ),
4776 // bottom of context menu
4777 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
4778 ];
4779 possible_origins.into_iter().find(|&origin| {
4780 Bounds::new(origin, size(total_width, overall_height))
4781 .is_contained_within(hitbox)
4782 })
4783 });
4784 if let Some(origin) = origin_surrounding_menu {
4785 let mut current_y = origin.y;
4786 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4787 let size = popover.size;
4788 let popover_origin = point(origin.x, current_y);
4789
4790 window.defer_draw(popover.element, popover_origin, 2);
4791 if position != itertools::Position::Last {
4792 let origin = point(popover_origin.x, popover_origin.y + size.height);
4793 draw_occluder(size.width, origin, window, cx);
4794 }
4795
4796 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4797 }
4798 } else {
4799 // fallback to existing above/below cursor logic
4800 // this might overlap menu or overflow in rare case
4801 if can_place_above {
4802 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
4803 } else {
4804 place_popovers_below(
4805 hovered_point,
4806 measured_hover_popovers,
4807 line_height,
4808 window,
4809 cx,
4810 );
4811 }
4812 }
4813 }
4814 }
4815
4816 fn layout_diff_hunk_controls(
4817 &self,
4818 row_range: Range<DisplayRow>,
4819 row_infos: &[RowInfo],
4820 text_hitbox: &Hitbox,
4821 newest_cursor_position: Option<DisplayPoint>,
4822 line_height: Pixels,
4823 right_margin: Pixels,
4824 scroll_pixel_position: gpui::Point<Pixels>,
4825 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4826 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
4827 editor: Entity<Editor>,
4828 window: &mut Window,
4829 cx: &mut App,
4830 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
4831 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
4832 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
4833
4834 let mut controls = vec![];
4835 let mut control_bounds = vec![];
4836
4837 let active_positions = [
4838 hovered_diff_hunk_row.map(|row| DisplayPoint::new(row, 0)),
4839 newest_cursor_position,
4840 ];
4841
4842 for (hunk, _) in display_hunks {
4843 if let DisplayDiffHunk::Unfolded {
4844 display_row_range,
4845 multi_buffer_range,
4846 status,
4847 is_created_file,
4848 ..
4849 } = &hunk
4850 {
4851 if display_row_range.start < row_range.start
4852 || display_row_range.start >= row_range.end
4853 {
4854 continue;
4855 }
4856 if highlighted_rows
4857 .get(&display_row_range.start)
4858 .and_then(|highlight| highlight.type_id)
4859 .is_some_and(|type_id| {
4860 [
4861 TypeId::of::<ConflictsOuter>(),
4862 TypeId::of::<ConflictsOursMarker>(),
4863 TypeId::of::<ConflictsOurs>(),
4864 TypeId::of::<ConflictsTheirs>(),
4865 TypeId::of::<ConflictsTheirsMarker>(),
4866 ]
4867 .contains(&type_id)
4868 })
4869 {
4870 continue;
4871 }
4872 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4873 if row_infos[row_ix].diff_status.is_none() {
4874 continue;
4875 }
4876 if row_infos[row_ix]
4877 .diff_status
4878 .is_some_and(|status| status.is_added())
4879 && !status.is_added()
4880 {
4881 continue;
4882 }
4883
4884 if active_positions
4885 .iter()
4886 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4887 {
4888 let y = display_row_range.start.as_f32() * line_height
4889 + text_hitbox.bounds.top()
4890 - scroll_pixel_position.y;
4891
4892 let mut element = render_diff_hunk_controls(
4893 display_row_range.start.0,
4894 status,
4895 multi_buffer_range.clone(),
4896 *is_created_file,
4897 line_height,
4898 &editor,
4899 window,
4900 cx,
4901 );
4902 let size =
4903 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
4904
4905 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
4906
4907 let bounds = Bounds::new(gpui::Point::new(x, y), size);
4908 control_bounds.push((display_row_range.start, bounds));
4909
4910 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
4911 element.prepaint(window, cx)
4912 });
4913 controls.push(element);
4914 }
4915 }
4916 }
4917
4918 (controls, control_bounds)
4919 }
4920
4921 fn layout_signature_help(
4922 &self,
4923 hitbox: &Hitbox,
4924 content_origin: gpui::Point<Pixels>,
4925 scroll_pixel_position: gpui::Point<Pixels>,
4926 newest_selection_head: Option<DisplayPoint>,
4927 start_row: DisplayRow,
4928 line_layouts: &[LineWithInvisibles],
4929 line_height: Pixels,
4930 em_width: Pixels,
4931 context_menu_layout: Option<ContextMenuLayout>,
4932 window: &mut Window,
4933 cx: &mut App,
4934 ) {
4935 if !self.editor.focus_handle(cx).is_focused(window) {
4936 return;
4937 }
4938 let Some(newest_selection_head) = newest_selection_head else {
4939 return;
4940 };
4941
4942 let max_size = size(
4943 (120. * em_width) // Default size
4944 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4945 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4946 (16. * line_height) // Default size
4947 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4948 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4949 );
4950
4951 let maybe_element = self.editor.update(cx, |editor, cx| {
4952 if let Some(popover) = editor.signature_help_state.popover_mut() {
4953 let element = popover.render(max_size, cx);
4954 Some(element)
4955 } else {
4956 None
4957 }
4958 });
4959 let Some(mut element) = maybe_element else {
4960 return;
4961 };
4962
4963 let selection_row = newest_selection_head.row();
4964 let Some(cursor_row_layout) = (selection_row >= start_row)
4965 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
4966 .flatten()
4967 else {
4968 return;
4969 };
4970
4971 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
4972 - scroll_pixel_position.x;
4973 let target_y = selection_row.as_f32() * line_height - scroll_pixel_position.y;
4974 let target_point = content_origin + point(target_x, target_y);
4975
4976 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
4977
4978 let (popover_bounds_above, popover_bounds_below) = {
4979 let horizontal_offset = (hitbox.top_right().x
4980 - POPOVER_RIGHT_OFFSET
4981 - (target_point.x + actual_size.width))
4982 .min(Pixels::ZERO);
4983 let initial_x = target_point.x + horizontal_offset;
4984 (
4985 Bounds::new(
4986 point(initial_x, target_point.y - actual_size.height),
4987 actual_size,
4988 ),
4989 Bounds::new(
4990 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
4991 actual_size,
4992 ),
4993 )
4994 };
4995
4996 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
4997 context_menu_layout
4998 .as_ref()
4999 .map_or(false, |menu| bounds.intersects(&menu.bounds))
5000 };
5001
5002 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
5003 && !intersects_menu(popover_bounds_above)
5004 {
5005 // try placing above cursor
5006 popover_bounds_above.origin
5007 } else if popover_bounds_below.is_contained_within(hitbox)
5008 && !intersects_menu(popover_bounds_below)
5009 {
5010 // try placing below cursor
5011 popover_bounds_below.origin
5012 } else {
5013 // try surrounding context menu if exists
5014 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5015 let y_for_horizontal_positioning = if menu.y_flipped {
5016 menu.bounds.bottom() - actual_size.height
5017 } else {
5018 menu.bounds.top()
5019 };
5020 let possible_origins = vec![
5021 // left of context menu
5022 point(
5023 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
5024 y_for_horizontal_positioning,
5025 ),
5026 // right of context menu
5027 point(
5028 menu.bounds.right() + HOVER_POPOVER_GAP,
5029 y_for_horizontal_positioning,
5030 ),
5031 // top of context menu
5032 point(
5033 menu.bounds.left(),
5034 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
5035 ),
5036 // bottom of context menu
5037 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5038 ];
5039 possible_origins
5040 .into_iter()
5041 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
5042 });
5043 origin_surrounding_menu.unwrap_or_else(|| {
5044 // fallback to existing above/below cursor logic
5045 // this might overlap menu or overflow in rare case
5046 if popover_bounds_above.is_contained_within(hitbox) {
5047 popover_bounds_above.origin
5048 } else {
5049 popover_bounds_below.origin
5050 }
5051 })
5052 };
5053
5054 window.defer_draw(element, final_origin, 2);
5055 }
5056
5057 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5058 window.paint_layer(layout.hitbox.bounds, |window| {
5059 let scroll_top = layout.position_map.snapshot.scroll_position().y;
5060 let gutter_bg = cx.theme().colors().editor_gutter_background;
5061 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
5062 window.paint_quad(fill(
5063 layout.position_map.text_hitbox.bounds,
5064 self.style.background,
5065 ));
5066
5067 if matches!(
5068 layout.mode,
5069 EditorMode::Full { .. } | EditorMode::Minimap { .. }
5070 ) {
5071 let show_active_line_background = match layout.mode {
5072 EditorMode::Full {
5073 show_active_line_background,
5074 ..
5075 } => show_active_line_background,
5076 EditorMode::Minimap { .. } => true,
5077 _ => false,
5078 };
5079 let mut active_rows = layout.active_rows.iter().peekable();
5080 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
5081 let mut end_row = start_row.0;
5082 while active_rows
5083 .peek()
5084 .map_or(false, |(active_row, has_selection)| {
5085 active_row.0 == end_row + 1
5086 && has_selection.selection == contains_non_empty_selection.selection
5087 })
5088 {
5089 active_rows.next().unwrap();
5090 end_row += 1;
5091 }
5092
5093 if show_active_line_background && !contains_non_empty_selection.selection {
5094 let highlight_h_range =
5095 match layout.position_map.snapshot.current_line_highlight {
5096 CurrentLineHighlight::Gutter => Some(Range {
5097 start: layout.hitbox.left(),
5098 end: layout.gutter_hitbox.right(),
5099 }),
5100 CurrentLineHighlight::Line => Some(Range {
5101 start: layout.position_map.text_hitbox.bounds.left(),
5102 end: layout.position_map.text_hitbox.bounds.right(),
5103 }),
5104 CurrentLineHighlight::All => Some(Range {
5105 start: layout.hitbox.left(),
5106 end: layout.hitbox.right(),
5107 }),
5108 CurrentLineHighlight::None => None,
5109 };
5110 if let Some(range) = highlight_h_range {
5111 let active_line_bg = cx.theme().colors().editor_active_line_background;
5112 let bounds = Bounds {
5113 origin: point(
5114 range.start,
5115 layout.hitbox.origin.y
5116 + (start_row.as_f32() - scroll_top)
5117 * layout.position_map.line_height,
5118 ),
5119 size: size(
5120 range.end - range.start,
5121 layout.position_map.line_height
5122 * (end_row - start_row.0 + 1) as f32,
5123 ),
5124 };
5125 window.paint_quad(fill(bounds, active_line_bg));
5126 }
5127 }
5128 }
5129
5130 let mut paint_highlight = |highlight_row_start: DisplayRow,
5131 highlight_row_end: DisplayRow,
5132 highlight: crate::LineHighlight,
5133 edges| {
5134 let mut origin_x = layout.hitbox.left();
5135 let mut width = layout.hitbox.size.width;
5136 if !highlight.include_gutter {
5137 origin_x += layout.gutter_hitbox.size.width;
5138 width -= layout.gutter_hitbox.size.width;
5139 }
5140
5141 let origin = point(
5142 origin_x,
5143 layout.hitbox.origin.y
5144 + (highlight_row_start.as_f32() - scroll_top)
5145 * layout.position_map.line_height,
5146 );
5147 let size = size(
5148 width,
5149 layout.position_map.line_height
5150 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
5151 );
5152 let mut quad = fill(Bounds { origin, size }, highlight.background);
5153 if let Some(border_color) = highlight.border {
5154 quad.border_color = border_color;
5155 quad.border_widths = edges
5156 }
5157 window.paint_quad(quad);
5158 };
5159
5160 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
5161 None;
5162 for (&new_row, &new_background) in &layout.highlighted_rows {
5163 match &mut current_paint {
5164 &mut Some((current_background, ref mut current_range, mut edges)) => {
5165 let new_range_started = current_background != new_background
5166 || current_range.end.next_row() != new_row;
5167 if new_range_started {
5168 if current_range.end.next_row() == new_row {
5169 edges.bottom = px(0.);
5170 };
5171 paint_highlight(
5172 current_range.start,
5173 current_range.end,
5174 current_background,
5175 edges,
5176 );
5177 let edges = Edges {
5178 top: if current_range.end.next_row() != new_row {
5179 px(1.)
5180 } else {
5181 px(0.)
5182 },
5183 bottom: px(1.),
5184 ..Default::default()
5185 };
5186 current_paint = Some((new_background, new_row..new_row, edges));
5187 continue;
5188 } else {
5189 current_range.end = current_range.end.next_row();
5190 }
5191 }
5192 None => {
5193 let edges = Edges {
5194 top: px(1.),
5195 bottom: px(1.),
5196 ..Default::default()
5197 };
5198 current_paint = Some((new_background, new_row..new_row, edges))
5199 }
5200 };
5201 }
5202 if let Some((color, range, edges)) = current_paint {
5203 paint_highlight(range.start, range.end, color, edges);
5204 }
5205
5206 let scroll_left =
5207 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
5208
5209 for (wrap_position, active) in layout.wrap_guides.iter() {
5210 let x = (layout.position_map.text_hitbox.origin.x
5211 + *wrap_position
5212 + layout.position_map.em_width / 2.)
5213 - scroll_left;
5214
5215 let show_scrollbars = layout
5216 .scrollbars_layout
5217 .as_ref()
5218 .map_or(false, |layout| layout.visible);
5219
5220 if x < layout.position_map.text_hitbox.origin.x
5221 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
5222 {
5223 continue;
5224 }
5225
5226 let color = if *active {
5227 cx.theme().colors().editor_active_wrap_guide
5228 } else {
5229 cx.theme().colors().editor_wrap_guide
5230 };
5231 window.paint_quad(fill(
5232 Bounds {
5233 origin: point(x, layout.position_map.text_hitbox.origin.y),
5234 size: size(px(1.), layout.position_map.text_hitbox.size.height),
5235 },
5236 color,
5237 ));
5238 }
5239 }
5240 })
5241 }
5242
5243 fn paint_indent_guides(
5244 &mut self,
5245 layout: &mut EditorLayout,
5246 window: &mut Window,
5247 cx: &mut App,
5248 ) {
5249 let Some(indent_guides) = &layout.indent_guides else {
5250 return;
5251 };
5252
5253 let faded_color = |color: Hsla, alpha: f32| {
5254 let mut faded = color;
5255 faded.a = alpha;
5256 faded
5257 };
5258
5259 for indent_guide in indent_guides {
5260 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
5261 let settings = indent_guide.settings;
5262
5263 // TODO fixed for now, expose them through themes later
5264 const INDENT_AWARE_ALPHA: f32 = 0.2;
5265 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
5266 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
5267 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
5268
5269 let line_color = match (settings.coloring, indent_guide.active) {
5270 (IndentGuideColoring::Disabled, _) => None,
5271 (IndentGuideColoring::Fixed, false) => {
5272 Some(cx.theme().colors().editor_indent_guide)
5273 }
5274 (IndentGuideColoring::Fixed, true) => {
5275 Some(cx.theme().colors().editor_indent_guide_active)
5276 }
5277 (IndentGuideColoring::IndentAware, false) => {
5278 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
5279 }
5280 (IndentGuideColoring::IndentAware, true) => {
5281 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
5282 }
5283 };
5284
5285 let background_color = match (settings.background_coloring, indent_guide.active) {
5286 (IndentGuideBackgroundColoring::Disabled, _) => None,
5287 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
5288 indent_accent_colors,
5289 INDENT_AWARE_BACKGROUND_ALPHA,
5290 )),
5291 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
5292 indent_accent_colors,
5293 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
5294 )),
5295 };
5296
5297 let requested_line_width = if indent_guide.active {
5298 settings.active_line_width
5299 } else {
5300 settings.line_width
5301 }
5302 .clamp(1, 10);
5303 let mut line_indicator_width = 0.;
5304 if let Some(color) = line_color {
5305 window.paint_quad(fill(
5306 Bounds {
5307 origin: indent_guide.origin,
5308 size: size(px(requested_line_width as f32), indent_guide.length),
5309 },
5310 color,
5311 ));
5312 line_indicator_width = requested_line_width as f32;
5313 }
5314
5315 if let Some(color) = background_color {
5316 let width = indent_guide.single_indent_width - px(line_indicator_width);
5317 window.paint_quad(fill(
5318 Bounds {
5319 origin: point(
5320 indent_guide.origin.x + px(line_indicator_width),
5321 indent_guide.origin.y,
5322 ),
5323 size: size(width, indent_guide.length),
5324 },
5325 color,
5326 ));
5327 }
5328 }
5329 }
5330
5331 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5332 let is_singleton = self.editor.read(cx).is_singleton(cx);
5333
5334 let line_height = layout.position_map.line_height;
5335 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
5336
5337 for LineNumberLayout {
5338 shaped_line,
5339 hitbox,
5340 } in layout.line_numbers.values()
5341 {
5342 let Some(hitbox) = hitbox else {
5343 continue;
5344 };
5345
5346 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
5347 let color = cx.theme().colors().editor_hover_line_number;
5348
5349 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
5350 line.paint(hitbox.origin, line_height, window, cx).log_err()
5351 } else {
5352 shaped_line
5353 .paint(hitbox.origin, line_height, window, cx)
5354 .log_err()
5355 }) else {
5356 continue;
5357 };
5358
5359 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
5360 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
5361 if is_singleton {
5362 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
5363 } else {
5364 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
5365 }
5366 }
5367 }
5368
5369 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5370 if layout.display_hunks.is_empty() {
5371 return;
5372 }
5373
5374 let line_height = layout.position_map.line_height;
5375 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5376 for (hunk, hitbox) in &layout.display_hunks {
5377 let hunk_to_paint = match hunk {
5378 DisplayDiffHunk::Folded { .. } => {
5379 let hunk_bounds = Self::diff_hunk_bounds(
5380 &layout.position_map.snapshot,
5381 line_height,
5382 layout.gutter_hitbox.bounds,
5383 &hunk,
5384 );
5385 Some((
5386 hunk_bounds,
5387 cx.theme().colors().version_control_modified,
5388 Corners::all(px(0.)),
5389 DiffHunkStatus::modified_none(),
5390 ))
5391 }
5392 DisplayDiffHunk::Unfolded {
5393 status,
5394 display_row_range,
5395 ..
5396 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
5397 DiffHunkStatusKind::Added => (
5398 hunk_hitbox.bounds,
5399 cx.theme().colors().version_control_added,
5400 Corners::all(px(0.)),
5401 *status,
5402 ),
5403 DiffHunkStatusKind::Modified => (
5404 hunk_hitbox.bounds,
5405 cx.theme().colors().version_control_modified,
5406 Corners::all(px(0.)),
5407 *status,
5408 ),
5409 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
5410 hunk_hitbox.bounds,
5411 cx.theme().colors().version_control_deleted,
5412 Corners::all(px(0.)),
5413 *status,
5414 ),
5415 DiffHunkStatusKind::Deleted => (
5416 Bounds::new(
5417 point(
5418 hunk_hitbox.origin.x - hunk_hitbox.size.width,
5419 hunk_hitbox.origin.y,
5420 ),
5421 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
5422 ),
5423 cx.theme().colors().version_control_deleted,
5424 Corners::all(1. * line_height),
5425 *status,
5426 ),
5427 }),
5428 };
5429
5430 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
5431 // Flatten the background color with the editor color to prevent
5432 // elements below transparent hunks from showing through
5433 let flattened_background_color = cx
5434 .theme()
5435 .colors()
5436 .editor_background
5437 .blend(background_color);
5438
5439 if !Self::diff_hunk_hollow(status, cx) {
5440 window.paint_quad(quad(
5441 hunk_bounds,
5442 corner_radii,
5443 flattened_background_color,
5444 Edges::default(),
5445 transparent_black(),
5446 BorderStyle::default(),
5447 ));
5448 } else {
5449 let flattened_unstaged_background_color = cx
5450 .theme()
5451 .colors()
5452 .editor_background
5453 .blend(background_color.opacity(0.3));
5454
5455 window.paint_quad(quad(
5456 hunk_bounds,
5457 corner_radii,
5458 flattened_unstaged_background_color,
5459 Edges::all(Pixels(1.0)),
5460 flattened_background_color,
5461 BorderStyle::Solid,
5462 ));
5463 }
5464 }
5465 }
5466 });
5467 }
5468
5469 fn gutter_strip_width(line_height: Pixels) -> Pixels {
5470 (0.275 * line_height).floor()
5471 }
5472
5473 fn diff_hunk_bounds(
5474 snapshot: &EditorSnapshot,
5475 line_height: Pixels,
5476 gutter_bounds: Bounds<Pixels>,
5477 hunk: &DisplayDiffHunk,
5478 ) -> Bounds<Pixels> {
5479 let scroll_position = snapshot.scroll_position();
5480 let scroll_top = scroll_position.y * line_height;
5481 let gutter_strip_width = Self::gutter_strip_width(line_height);
5482
5483 match hunk {
5484 DisplayDiffHunk::Folded { display_row, .. } => {
5485 let start_y = display_row.as_f32() * line_height - scroll_top;
5486 let end_y = start_y + line_height;
5487 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5488 let highlight_size = size(gutter_strip_width, end_y - start_y);
5489 Bounds::new(highlight_origin, highlight_size)
5490 }
5491 DisplayDiffHunk::Unfolded {
5492 display_row_range,
5493 status,
5494 ..
5495 } => {
5496 if status.is_deleted() && display_row_range.is_empty() {
5497 let row = display_row_range.start;
5498
5499 let offset = line_height / 2.;
5500 let start_y = row.as_f32() * line_height - offset - scroll_top;
5501 let end_y = start_y + line_height;
5502
5503 let width = (0.35 * line_height).floor();
5504 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5505 let highlight_size = size(width, end_y - start_y);
5506 Bounds::new(highlight_origin, highlight_size)
5507 } else {
5508 let start_row = display_row_range.start;
5509 let end_row = display_row_range.end;
5510 // If we're in a multibuffer, row range span might include an
5511 // excerpt header, so if we were to draw the marker straight away,
5512 // the hunk might include the rows of that header.
5513 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
5514 // Instead, we simply check whether the range we're dealing with includes
5515 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
5516 let end_row_in_current_excerpt = snapshot
5517 .blocks_in_range(start_row..end_row)
5518 .find_map(|(start_row, block)| {
5519 if matches!(block, Block::ExcerptBoundary { .. }) {
5520 Some(start_row)
5521 } else {
5522 None
5523 }
5524 })
5525 .unwrap_or(end_row);
5526
5527 let start_y = start_row.as_f32() * line_height - scroll_top;
5528 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
5529
5530 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5531 let highlight_size = size(gutter_strip_width, end_y - start_y);
5532 Bounds::new(highlight_origin, highlight_size)
5533 }
5534 }
5535 }
5536 }
5537
5538 fn paint_gutter_indicators(
5539 &self,
5540 layout: &mut EditorLayout,
5541 window: &mut Window,
5542 cx: &mut App,
5543 ) {
5544 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5545 window.with_element_namespace("crease_toggles", |window| {
5546 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
5547 crease_toggle.paint(window, cx);
5548 }
5549 });
5550
5551 window.with_element_namespace("expand_toggles", |window| {
5552 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
5553 expand_toggle.paint(window, cx);
5554 }
5555 });
5556
5557 for breakpoint in layout.breakpoints.iter_mut() {
5558 breakpoint.paint(window, cx);
5559 }
5560
5561 for test_indicator in layout.test_indicators.iter_mut() {
5562 test_indicator.paint(window, cx);
5563 }
5564 });
5565 }
5566
5567 fn paint_gutter_highlights(
5568 &self,
5569 layout: &mut EditorLayout,
5570 window: &mut Window,
5571 cx: &mut App,
5572 ) {
5573 for (_, hunk_hitbox) in &layout.display_hunks {
5574 if let Some(hunk_hitbox) = hunk_hitbox {
5575 if !self
5576 .editor
5577 .read(cx)
5578 .buffer()
5579 .read(cx)
5580 .all_diff_hunks_expanded()
5581 {
5582 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
5583 }
5584 }
5585 }
5586
5587 let show_git_gutter = layout
5588 .position_map
5589 .snapshot
5590 .show_git_diff_gutter
5591 .unwrap_or_else(|| {
5592 matches!(
5593 ProjectSettings::get_global(cx).git.git_gutter,
5594 Some(GitGutterSetting::TrackedFiles)
5595 )
5596 });
5597 if show_git_gutter {
5598 Self::paint_gutter_diff_hunks(layout, window, cx)
5599 }
5600
5601 let highlight_width = 0.275 * layout.position_map.line_height;
5602 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
5603 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5604 for (range, color) in &layout.highlighted_gutter_ranges {
5605 let start_row = if range.start.row() < layout.visible_display_row_range.start {
5606 layout.visible_display_row_range.start - DisplayRow(1)
5607 } else {
5608 range.start.row()
5609 };
5610 let end_row = if range.end.row() > layout.visible_display_row_range.end {
5611 layout.visible_display_row_range.end + DisplayRow(1)
5612 } else {
5613 range.end.row()
5614 };
5615
5616 let start_y = layout.gutter_hitbox.top()
5617 + start_row.0 as f32 * layout.position_map.line_height
5618 - layout.position_map.scroll_pixel_position.y;
5619 let end_y = layout.gutter_hitbox.top()
5620 + (end_row.0 + 1) as f32 * layout.position_map.line_height
5621 - layout.position_map.scroll_pixel_position.y;
5622 let bounds = Bounds::from_corners(
5623 point(layout.gutter_hitbox.left(), start_y),
5624 point(layout.gutter_hitbox.left() + highlight_width, end_y),
5625 );
5626 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
5627 }
5628 });
5629 }
5630
5631 fn paint_blamed_display_rows(
5632 &self,
5633 layout: &mut EditorLayout,
5634 window: &mut Window,
5635 cx: &mut App,
5636 ) {
5637 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
5638 return;
5639 };
5640
5641 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5642 for mut blame_element in blamed_display_rows.into_iter() {
5643 blame_element.paint(window, cx);
5644 }
5645 })
5646 }
5647
5648 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5649 window.with_content_mask(
5650 Some(ContentMask {
5651 bounds: layout.position_map.text_hitbox.bounds,
5652 }),
5653 |window| {
5654 let editor = self.editor.read(cx);
5655 if editor.mouse_cursor_hidden {
5656 window.set_window_cursor_style(CursorStyle::None);
5657 } else if matches!(
5658 editor.selection_drag_state,
5659 SelectionDragState::Dragging { .. }
5660 ) {
5661 window
5662 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
5663 } else if editor
5664 .hovered_link_state
5665 .as_ref()
5666 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
5667 {
5668 window.set_cursor_style(
5669 CursorStyle::PointingHand,
5670 &layout.position_map.text_hitbox,
5671 );
5672 } else {
5673 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
5674 };
5675
5676 self.paint_lines_background(layout, window, cx);
5677 let invisible_display_ranges = self.paint_highlights(layout, window);
5678 self.paint_document_colors(layout, window);
5679 self.paint_lines(&invisible_display_ranges, layout, window, cx);
5680 self.paint_redactions(layout, window);
5681 self.paint_cursors(layout, window, cx);
5682 self.paint_inline_diagnostics(layout, window, cx);
5683 self.paint_inline_blame(layout, window, cx);
5684 self.paint_inline_code_actions(layout, window, cx);
5685 self.paint_diff_hunk_controls(layout, window, cx);
5686 window.with_element_namespace("crease_trailers", |window| {
5687 for trailer in layout.crease_trailers.iter_mut().flatten() {
5688 trailer.element.paint(window, cx);
5689 }
5690 });
5691 },
5692 )
5693 }
5694
5695 fn paint_highlights(
5696 &mut self,
5697 layout: &mut EditorLayout,
5698 window: &mut Window,
5699 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
5700 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5701 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
5702 let line_end_overshoot = 0.15 * layout.position_map.line_height;
5703 for (range, color) in &layout.highlighted_ranges {
5704 self.paint_highlighted_range(
5705 range.clone(),
5706 true,
5707 *color,
5708 Pixels::ZERO,
5709 line_end_overshoot,
5710 layout,
5711 window,
5712 );
5713 }
5714
5715 let corner_radius = 0.15 * layout.position_map.line_height;
5716
5717 for (player_color, selections) in &layout.selections {
5718 for selection in selections.iter() {
5719 self.paint_highlighted_range(
5720 selection.range.clone(),
5721 true,
5722 player_color.selection,
5723 corner_radius,
5724 corner_radius * 2.,
5725 layout,
5726 window,
5727 );
5728
5729 if selection.is_local && !selection.range.is_empty() {
5730 invisible_display_ranges.push(selection.range.clone());
5731 }
5732 }
5733 }
5734 invisible_display_ranges
5735 })
5736 }
5737
5738 fn paint_lines(
5739 &mut self,
5740 invisible_display_ranges: &[Range<DisplayPoint>],
5741 layout: &mut EditorLayout,
5742 window: &mut Window,
5743 cx: &mut App,
5744 ) {
5745 let whitespace_setting = self
5746 .editor
5747 .read(cx)
5748 .buffer
5749 .read(cx)
5750 .language_settings(cx)
5751 .show_whitespaces;
5752
5753 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
5754 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
5755 line_with_invisibles.draw(
5756 layout,
5757 row,
5758 layout.content_origin,
5759 whitespace_setting,
5760 invisible_display_ranges,
5761 window,
5762 cx,
5763 )
5764 }
5765
5766 for line_element in &mut layout.line_elements {
5767 line_element.paint(window, cx);
5768 }
5769 }
5770
5771 fn paint_lines_background(
5772 &mut self,
5773 layout: &mut EditorLayout,
5774 window: &mut Window,
5775 cx: &mut App,
5776 ) {
5777 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
5778 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
5779 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
5780 }
5781 }
5782
5783 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
5784 if layout.redacted_ranges.is_empty() {
5785 return;
5786 }
5787
5788 let line_end_overshoot = layout.line_end_overshoot();
5789
5790 // A softer than perfect black
5791 let redaction_color = gpui::rgb(0x0e1111);
5792
5793 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5794 for range in layout.redacted_ranges.iter() {
5795 self.paint_highlighted_range(
5796 range.clone(),
5797 true,
5798 redaction_color.into(),
5799 Pixels::ZERO,
5800 line_end_overshoot,
5801 layout,
5802 window,
5803 );
5804 }
5805 });
5806 }
5807
5808 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
5809 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
5810 return;
5811 };
5812 if image_colors.is_empty()
5813 || colors_render_mode == &DocumentColorsRenderMode::None
5814 || colors_render_mode == &DocumentColorsRenderMode::Inlay
5815 {
5816 return;
5817 }
5818
5819 let line_end_overshoot = layout.line_end_overshoot();
5820
5821 for (range, color) in image_colors {
5822 match colors_render_mode {
5823 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
5824 DocumentColorsRenderMode::Background => {
5825 self.paint_highlighted_range(
5826 range.clone(),
5827 true,
5828 *color,
5829 Pixels::ZERO,
5830 line_end_overshoot,
5831 layout,
5832 window,
5833 );
5834 }
5835 DocumentColorsRenderMode::Border => {
5836 self.paint_highlighted_range(
5837 range.clone(),
5838 false,
5839 *color,
5840 Pixels::ZERO,
5841 line_end_overshoot,
5842 layout,
5843 window,
5844 );
5845 }
5846 }
5847 }
5848 }
5849
5850 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5851 for cursor in &mut layout.visible_cursors {
5852 cursor.paint(layout.content_origin, window, cx);
5853 }
5854 }
5855
5856 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5857 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
5858 return;
5859 };
5860 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
5861
5862 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
5863 let hitbox = &scrollbar_layout.hitbox;
5864 if scrollbars_layout.visible {
5865 let scrollbar_edges = match axis {
5866 ScrollbarAxis::Horizontal => Edges {
5867 top: Pixels::ZERO,
5868 right: Pixels::ZERO,
5869 bottom: Pixels::ZERO,
5870 left: Pixels::ZERO,
5871 },
5872 ScrollbarAxis::Vertical => Edges {
5873 top: Pixels::ZERO,
5874 right: Pixels::ZERO,
5875 bottom: Pixels::ZERO,
5876 left: ScrollbarLayout::BORDER_WIDTH,
5877 },
5878 };
5879
5880 window.paint_layer(hitbox.bounds, |window| {
5881 window.paint_quad(quad(
5882 hitbox.bounds,
5883 Corners::default(),
5884 cx.theme().colors().scrollbar_track_background,
5885 scrollbar_edges,
5886 cx.theme().colors().scrollbar_track_border,
5887 BorderStyle::Solid,
5888 ));
5889
5890 if axis == ScrollbarAxis::Vertical {
5891 let fast_markers =
5892 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5893 // Refresh slow scrollbar markers in the background. Below, we
5894 // paint whatever markers have already been computed.
5895 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5896
5897 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5898 for marker in markers.iter().chain(&fast_markers) {
5899 let mut marker = marker.clone();
5900 marker.bounds.origin += hitbox.origin;
5901 window.paint_quad(marker);
5902 }
5903 }
5904
5905 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
5906 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
5907 ScrollbarThumbState::Dragging => {
5908 cx.theme().colors().scrollbar_thumb_active_background
5909 }
5910 ScrollbarThumbState::Hovered => {
5911 cx.theme().colors().scrollbar_thumb_hover_background
5912 }
5913 ScrollbarThumbState::Idle => {
5914 cx.theme().colors().scrollbar_thumb_background
5915 }
5916 };
5917 window.paint_quad(quad(
5918 thumb_bounds,
5919 Corners::default(),
5920 scrollbar_thumb_color,
5921 scrollbar_edges,
5922 cx.theme().colors().scrollbar_thumb_border,
5923 BorderStyle::Solid,
5924 ));
5925
5926 if any_scrollbar_dragged {
5927 window.set_window_cursor_style(CursorStyle::Arrow);
5928 } else {
5929 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5930 }
5931 }
5932 })
5933 }
5934 }
5935
5936 window.on_mouse_event({
5937 let editor = self.editor.clone();
5938 let scrollbars_layout = scrollbars_layout.clone();
5939
5940 let mut mouse_position = window.mouse_position();
5941 move |event: &MouseMoveEvent, phase, window, cx| {
5942 if phase == DispatchPhase::Capture {
5943 return;
5944 }
5945
5946 editor.update(cx, |editor, cx| {
5947 if let Some((scrollbar_layout, axis)) = event
5948 .pressed_button
5949 .filter(|button| *button == MouseButton::Left)
5950 .and(editor.scroll_manager.dragging_scrollbar_axis())
5951 .and_then(|axis| {
5952 scrollbars_layout
5953 .iter_scrollbars()
5954 .find(|(_, a)| *a == axis)
5955 })
5956 {
5957 let ScrollbarLayout {
5958 hitbox,
5959 text_unit_size,
5960 ..
5961 } = scrollbar_layout;
5962
5963 let old_position = mouse_position.along(axis);
5964 let new_position = event.position.along(axis);
5965 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
5966 .contains(&old_position)
5967 {
5968 let position = editor.scroll_position(cx).apply_along(axis, |p| {
5969 (p + (new_position - old_position) / *text_unit_size).max(0.)
5970 });
5971 editor.set_scroll_position(position, window, cx);
5972 }
5973
5974 editor.scroll_manager.show_scrollbars(window, cx);
5975 cx.stop_propagation();
5976 } else if let Some((layout, axis)) = scrollbars_layout
5977 .get_hovered_axis(window)
5978 .filter(|_| !event.dragging())
5979 {
5980 if layout.thumb_hovered(&event.position) {
5981 editor
5982 .scroll_manager
5983 .set_hovered_scroll_thumb_axis(axis, cx);
5984 } else {
5985 editor.scroll_manager.reset_scrollbar_state(cx);
5986 }
5987
5988 editor.scroll_manager.show_scrollbars(window, cx);
5989 } else {
5990 editor.scroll_manager.reset_scrollbar_state(cx);
5991 }
5992
5993 mouse_position = event.position;
5994 })
5995 }
5996 });
5997
5998 if any_scrollbar_dragged {
5999 window.on_mouse_event({
6000 let editor = self.editor.clone();
6001 move |_: &MouseUpEvent, phase, window, cx| {
6002 if phase == DispatchPhase::Capture {
6003 return;
6004 }
6005
6006 editor.update(cx, |editor, cx| {
6007 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
6008 editor
6009 .scroll_manager
6010 .set_hovered_scroll_thumb_axis(axis, cx);
6011 } else {
6012 editor.scroll_manager.reset_scrollbar_state(cx);
6013 }
6014 cx.stop_propagation();
6015 });
6016 }
6017 });
6018 } else {
6019 window.on_mouse_event({
6020 let editor = self.editor.clone();
6021
6022 move |event: &MouseDownEvent, phase, window, cx| {
6023 if phase == DispatchPhase::Capture {
6024 return;
6025 }
6026 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
6027 else {
6028 return;
6029 };
6030
6031 let ScrollbarLayout {
6032 hitbox,
6033 visible_range,
6034 text_unit_size,
6035 thumb_bounds,
6036 ..
6037 } = scrollbar_layout;
6038
6039 let Some(thumb_bounds) = thumb_bounds else {
6040 return;
6041 };
6042
6043 editor.update(cx, |editor, cx| {
6044 editor
6045 .scroll_manager
6046 .set_dragged_scroll_thumb_axis(axis, cx);
6047
6048 let event_position = event.position.along(axis);
6049
6050 if event_position < thumb_bounds.origin.along(axis)
6051 || thumb_bounds.bottom_right().along(axis) < event_position
6052 {
6053 let center_position = ((event_position - hitbox.origin.along(axis))
6054 / *text_unit_size)
6055 .round() as u32;
6056 let start_position = center_position.saturating_sub(
6057 (visible_range.end - visible_range.start) as u32 / 2,
6058 );
6059
6060 let position = editor
6061 .scroll_position(cx)
6062 .apply_along(axis, |_| start_position as f32);
6063
6064 editor.set_scroll_position(position, window, cx);
6065 } else {
6066 editor.scroll_manager.show_scrollbars(window, cx);
6067 }
6068
6069 cx.stop_propagation();
6070 });
6071 }
6072 });
6073 }
6074 }
6075
6076 fn collect_fast_scrollbar_markers(
6077 &self,
6078 layout: &EditorLayout,
6079 scrollbar_layout: &ScrollbarLayout,
6080 cx: &mut App,
6081 ) -> Vec<PaintQuad> {
6082 const LIMIT: usize = 100;
6083 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
6084 return vec![];
6085 }
6086 let cursor_ranges = layout
6087 .cursors
6088 .iter()
6089 .map(|(point, color)| ColoredRange {
6090 start: point.row(),
6091 end: point.row(),
6092 color: *color,
6093 })
6094 .collect_vec();
6095 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
6096 }
6097
6098 fn refresh_slow_scrollbar_markers(
6099 &self,
6100 layout: &EditorLayout,
6101 scrollbar_layout: &ScrollbarLayout,
6102 window: &mut Window,
6103 cx: &mut App,
6104 ) {
6105 self.editor.update(cx, |editor, cx| {
6106 if !editor.is_singleton(cx)
6107 || !editor
6108 .scrollbar_marker_state
6109 .should_refresh(scrollbar_layout.hitbox.size)
6110 {
6111 return;
6112 }
6113
6114 let scrollbar_layout = scrollbar_layout.clone();
6115 let background_highlights = editor.background_highlights.clone();
6116 let snapshot = layout.position_map.snapshot.clone();
6117 let theme = cx.theme().clone();
6118 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
6119
6120 editor.scrollbar_marker_state.dirty = false;
6121 editor.scrollbar_marker_state.pending_refresh =
6122 Some(cx.spawn_in(window, async move |editor, cx| {
6123 let scrollbar_size = scrollbar_layout.hitbox.size;
6124 let scrollbar_markers = cx
6125 .background_spawn(async move {
6126 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
6127 let mut marker_quads = Vec::new();
6128 if scrollbar_settings.git_diff {
6129 let marker_row_ranges =
6130 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
6131 let start_display_row =
6132 MultiBufferPoint::new(hunk.row_range.start.0, 0)
6133 .to_display_point(&snapshot.display_snapshot)
6134 .row();
6135 let mut end_display_row =
6136 MultiBufferPoint::new(hunk.row_range.end.0, 0)
6137 .to_display_point(&snapshot.display_snapshot)
6138 .row();
6139 if end_display_row != start_display_row {
6140 end_display_row.0 -= 1;
6141 }
6142 let color = match &hunk.status().kind {
6143 DiffHunkStatusKind::Added => {
6144 theme.colors().version_control_added
6145 }
6146 DiffHunkStatusKind::Modified => {
6147 theme.colors().version_control_modified
6148 }
6149 DiffHunkStatusKind::Deleted => {
6150 theme.colors().version_control_deleted
6151 }
6152 };
6153 ColoredRange {
6154 start: start_display_row,
6155 end: end_display_row,
6156 color,
6157 }
6158 });
6159
6160 marker_quads.extend(
6161 scrollbar_layout
6162 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
6163 );
6164 }
6165
6166 for (background_highlight_id, background_highlights) in
6167 background_highlights.iter()
6168 {
6169 let is_search_highlights = *background_highlight_id
6170 == TypeId::of::<BufferSearchHighlights>();
6171 let is_text_highlights = *background_highlight_id
6172 == TypeId::of::<SelectedTextHighlight>();
6173 let is_symbol_occurrences = *background_highlight_id
6174 == TypeId::of::<DocumentHighlightRead>()
6175 || *background_highlight_id
6176 == TypeId::of::<DocumentHighlightWrite>();
6177 if (is_search_highlights && scrollbar_settings.search_results)
6178 || (is_text_highlights && scrollbar_settings.selected_text)
6179 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
6180 {
6181 let mut color = theme.status().info;
6182 if is_symbol_occurrences {
6183 color.fade_out(0.5);
6184 }
6185 let marker_row_ranges =
6186 background_highlights.iter().map(|highlight| {
6187 let display_start = highlight
6188 .range
6189 .start
6190 .to_display_point(&snapshot.display_snapshot);
6191 let display_end = highlight
6192 .range
6193 .end
6194 .to_display_point(&snapshot.display_snapshot);
6195 ColoredRange {
6196 start: display_start.row(),
6197 end: display_end.row(),
6198 color,
6199 }
6200 });
6201 marker_quads.extend(
6202 scrollbar_layout
6203 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
6204 );
6205 }
6206 }
6207
6208 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
6209 let diagnostics = snapshot
6210 .buffer_snapshot
6211 .diagnostics_in_range::<Point>(Point::zero()..max_point)
6212 // Don't show diagnostics the user doesn't care about
6213 .filter(|diagnostic| {
6214 match (
6215 scrollbar_settings.diagnostics,
6216 diagnostic.diagnostic.severity,
6217 ) {
6218 (ScrollbarDiagnostics::All, _) => true,
6219 (
6220 ScrollbarDiagnostics::Error,
6221 lsp::DiagnosticSeverity::ERROR,
6222 ) => true,
6223 (
6224 ScrollbarDiagnostics::Warning,
6225 lsp::DiagnosticSeverity::ERROR
6226 | lsp::DiagnosticSeverity::WARNING,
6227 ) => true,
6228 (
6229 ScrollbarDiagnostics::Information,
6230 lsp::DiagnosticSeverity::ERROR
6231 | lsp::DiagnosticSeverity::WARNING
6232 | lsp::DiagnosticSeverity::INFORMATION,
6233 ) => true,
6234 (_, _) => false,
6235 }
6236 })
6237 // We want to sort by severity, in order to paint the most severe diagnostics last.
6238 .sorted_by_key(|diagnostic| {
6239 std::cmp::Reverse(diagnostic.diagnostic.severity)
6240 });
6241
6242 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
6243 let start_display = diagnostic
6244 .range
6245 .start
6246 .to_display_point(&snapshot.display_snapshot);
6247 let end_display = diagnostic
6248 .range
6249 .end
6250 .to_display_point(&snapshot.display_snapshot);
6251 let color = match diagnostic.diagnostic.severity {
6252 lsp::DiagnosticSeverity::ERROR => theme.status().error,
6253 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
6254 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
6255 _ => theme.status().hint,
6256 };
6257 ColoredRange {
6258 start: start_display.row(),
6259 end: end_display.row(),
6260 color,
6261 }
6262 });
6263 marker_quads.extend(
6264 scrollbar_layout
6265 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
6266 );
6267 }
6268
6269 Arc::from(marker_quads)
6270 })
6271 .await;
6272
6273 editor.update(cx, |editor, cx| {
6274 editor.scrollbar_marker_state.markers = scrollbar_markers;
6275 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
6276 editor.scrollbar_marker_state.pending_refresh = None;
6277 cx.notify();
6278 })?;
6279
6280 Ok(())
6281 }));
6282 });
6283 }
6284
6285 fn paint_highlighted_range(
6286 &self,
6287 range: Range<DisplayPoint>,
6288 fill: bool,
6289 color: Hsla,
6290 corner_radius: Pixels,
6291 line_end_overshoot: Pixels,
6292 layout: &EditorLayout,
6293 window: &mut Window,
6294 ) {
6295 let start_row = layout.visible_display_row_range.start;
6296 let end_row = layout.visible_display_row_range.end;
6297 if range.start != range.end {
6298 let row_range = if range.end.column() == 0 {
6299 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
6300 } else {
6301 cmp::max(range.start.row(), start_row)
6302 ..cmp::min(range.end.row().next_row(), end_row)
6303 };
6304
6305 let highlighted_range = HighlightedRange {
6306 color,
6307 line_height: layout.position_map.line_height,
6308 corner_radius,
6309 start_y: layout.content_origin.y
6310 + row_range.start.as_f32() * layout.position_map.line_height
6311 - layout.position_map.scroll_pixel_position.y,
6312 lines: row_range
6313 .iter_rows()
6314 .map(|row| {
6315 let line_layout =
6316 &layout.position_map.line_layouts[row.minus(start_row) as usize];
6317 HighlightedRangeLine {
6318 start_x: if row == range.start.row() {
6319 layout.content_origin.x
6320 + line_layout.x_for_index(range.start.column() as usize)
6321 - layout.position_map.scroll_pixel_position.x
6322 } else {
6323 layout.content_origin.x
6324 - layout.position_map.scroll_pixel_position.x
6325 },
6326 end_x: if row == range.end.row() {
6327 layout.content_origin.x
6328 + line_layout.x_for_index(range.end.column() as usize)
6329 - layout.position_map.scroll_pixel_position.x
6330 } else {
6331 layout.content_origin.x + line_layout.width + line_end_overshoot
6332 - layout.position_map.scroll_pixel_position.x
6333 },
6334 }
6335 })
6336 .collect(),
6337 };
6338
6339 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
6340 }
6341 }
6342
6343 fn paint_inline_diagnostics(
6344 &mut self,
6345 layout: &mut EditorLayout,
6346 window: &mut Window,
6347 cx: &mut App,
6348 ) {
6349 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
6350 inline_diagnostic.1.paint(window, cx);
6351 }
6352 }
6353
6354 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6355 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
6356 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6357 blame_layout.element.paint(window, cx);
6358 })
6359 }
6360 }
6361
6362 fn paint_inline_code_actions(
6363 &mut self,
6364 layout: &mut EditorLayout,
6365 window: &mut Window,
6366 cx: &mut App,
6367 ) {
6368 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
6369 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6370 inline_code_actions.paint(window, cx);
6371 })
6372 }
6373 }
6374
6375 fn paint_diff_hunk_controls(
6376 &mut self,
6377 layout: &mut EditorLayout,
6378 window: &mut Window,
6379 cx: &mut App,
6380 ) {
6381 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
6382 diff_hunk_control.paint(window, cx);
6383 }
6384 }
6385
6386 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6387 if let Some(mut layout) = layout.minimap.take() {
6388 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
6389 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
6390
6391 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
6392 window.with_element_namespace("minimap", |window| {
6393 layout.minimap.paint(window, cx);
6394 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
6395 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
6396 ScrollbarThumbState::Idle => {
6397 cx.theme().colors().minimap_thumb_background
6398 }
6399 ScrollbarThumbState::Hovered => {
6400 cx.theme().colors().minimap_thumb_hover_background
6401 }
6402 ScrollbarThumbState::Dragging => {
6403 cx.theme().colors().minimap_thumb_active_background
6404 }
6405 };
6406 let minimap_thumb_border = match layout.thumb_border_style {
6407 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
6408 MinimapThumbBorder::LeftOnly => Edges {
6409 left: ScrollbarLayout::BORDER_WIDTH,
6410 ..Default::default()
6411 },
6412 MinimapThumbBorder::LeftOpen => Edges {
6413 right: ScrollbarLayout::BORDER_WIDTH,
6414 top: ScrollbarLayout::BORDER_WIDTH,
6415 bottom: ScrollbarLayout::BORDER_WIDTH,
6416 ..Default::default()
6417 },
6418 MinimapThumbBorder::RightOpen => Edges {
6419 left: ScrollbarLayout::BORDER_WIDTH,
6420 top: ScrollbarLayout::BORDER_WIDTH,
6421 bottom: ScrollbarLayout::BORDER_WIDTH,
6422 ..Default::default()
6423 },
6424 MinimapThumbBorder::None => Default::default(),
6425 };
6426
6427 window.paint_layer(minimap_hitbox.bounds, |window| {
6428 window.paint_quad(quad(
6429 thumb_bounds,
6430 Corners::default(),
6431 minimap_thumb_color,
6432 minimap_thumb_border,
6433 cx.theme().colors().minimap_thumb_border,
6434 BorderStyle::Solid,
6435 ));
6436 });
6437 }
6438 });
6439 });
6440
6441 if dragging_minimap {
6442 window.set_window_cursor_style(CursorStyle::Arrow);
6443 } else {
6444 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
6445 }
6446
6447 let minimap_axis = ScrollbarAxis::Vertical;
6448 let pixels_per_line = (minimap_hitbox.size.height / layout.max_scroll_top)
6449 .min(layout.minimap_line_height);
6450
6451 let mut mouse_position = window.mouse_position();
6452
6453 window.on_mouse_event({
6454 let editor = self.editor.clone();
6455
6456 let minimap_hitbox = minimap_hitbox.clone();
6457
6458 move |event: &MouseMoveEvent, phase, window, cx| {
6459 if phase == DispatchPhase::Capture {
6460 return;
6461 }
6462
6463 editor.update(cx, |editor, cx| {
6464 if event.pressed_button == Some(MouseButton::Left)
6465 && editor.scroll_manager.is_dragging_minimap()
6466 {
6467 let old_position = mouse_position.along(minimap_axis);
6468 let new_position = event.position.along(minimap_axis);
6469 if (minimap_hitbox.origin.along(minimap_axis)
6470 ..minimap_hitbox.bottom_right().along(minimap_axis))
6471 .contains(&old_position)
6472 {
6473 let position =
6474 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
6475 (p + (new_position - old_position) / pixels_per_line)
6476 .max(0.)
6477 });
6478 editor.set_scroll_position(position, window, cx);
6479 }
6480 cx.stop_propagation();
6481 } else {
6482 if minimap_hitbox.is_hovered(window) {
6483 editor.scroll_manager.set_is_hovering_minimap_thumb(
6484 !event.dragging()
6485 && layout
6486 .thumb_layout
6487 .thumb_bounds
6488 .is_some_and(|bounds| bounds.contains(&event.position)),
6489 cx,
6490 );
6491
6492 // Stop hover events from propagating to the
6493 // underlying editor if the minimap hitbox is hovered
6494 if !event.dragging() {
6495 cx.stop_propagation();
6496 }
6497 } else {
6498 editor.scroll_manager.hide_minimap_thumb(cx);
6499 }
6500 }
6501 mouse_position = event.position;
6502 });
6503 }
6504 });
6505
6506 if dragging_minimap {
6507 window.on_mouse_event({
6508 let editor = self.editor.clone();
6509 move |event: &MouseUpEvent, phase, window, cx| {
6510 if phase == DispatchPhase::Capture {
6511 return;
6512 }
6513
6514 editor.update(cx, |editor, cx| {
6515 if minimap_hitbox.is_hovered(window) {
6516 editor.scroll_manager.set_is_hovering_minimap_thumb(
6517 layout
6518 .thumb_layout
6519 .thumb_bounds
6520 .is_some_and(|bounds| bounds.contains(&event.position)),
6521 cx,
6522 );
6523 } else {
6524 editor.scroll_manager.hide_minimap_thumb(cx);
6525 }
6526 cx.stop_propagation();
6527 });
6528 }
6529 });
6530 } else {
6531 window.on_mouse_event({
6532 let editor = self.editor.clone();
6533
6534 move |event: &MouseDownEvent, phase, window, cx| {
6535 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
6536 return;
6537 }
6538
6539 let event_position = event.position;
6540
6541 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
6542 return;
6543 };
6544
6545 editor.update(cx, |editor, cx| {
6546 if !thumb_bounds.contains(&event_position) {
6547 let click_position =
6548 event_position.relative_to(&minimap_hitbox.origin).y;
6549
6550 let top_position = (click_position
6551 - thumb_bounds.size.along(minimap_axis) / 2.0)
6552 .max(Pixels::ZERO);
6553
6554 let scroll_offset = (layout.minimap_scroll_top
6555 + top_position / layout.minimap_line_height)
6556 .min(layout.max_scroll_top);
6557
6558 let scroll_position = editor
6559 .scroll_position(cx)
6560 .apply_along(minimap_axis, |_| scroll_offset);
6561 editor.set_scroll_position(scroll_position, window, cx);
6562 }
6563
6564 editor.scroll_manager.set_is_dragging_minimap(cx);
6565 cx.stop_propagation();
6566 });
6567 }
6568 });
6569 }
6570 }
6571 }
6572
6573 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6574 for mut block in layout.blocks.drain(..) {
6575 if block.overlaps_gutter {
6576 block.element.paint(window, cx);
6577 } else {
6578 let mut bounds = layout.hitbox.bounds;
6579 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
6580 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6581 block.element.paint(window, cx);
6582 })
6583 }
6584 }
6585 }
6586
6587 fn paint_inline_completion_popover(
6588 &mut self,
6589 layout: &mut EditorLayout,
6590 window: &mut Window,
6591 cx: &mut App,
6592 ) {
6593 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
6594 inline_completion_popover.paint(window, cx);
6595 }
6596 }
6597
6598 fn paint_mouse_context_menu(
6599 &mut self,
6600 layout: &mut EditorLayout,
6601 window: &mut Window,
6602 cx: &mut App,
6603 ) {
6604 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
6605 mouse_context_menu.paint(window, cx);
6606 }
6607 }
6608
6609 fn paint_scroll_wheel_listener(
6610 &mut self,
6611 layout: &EditorLayout,
6612 window: &mut Window,
6613 cx: &mut App,
6614 ) {
6615 window.on_mouse_event({
6616 let position_map = layout.position_map.clone();
6617 let editor = self.editor.clone();
6618 let hitbox = layout.hitbox.clone();
6619 let mut delta = ScrollDelta::default();
6620
6621 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
6622 // accidentally turn off their scrolling.
6623 let base_scroll_sensitivity =
6624 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
6625
6626 // Use a minimum fast_scroll_sensitivity for same reason above
6627 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
6628 .fast_scroll_sensitivity
6629 .max(0.01);
6630
6631 move |event: &ScrollWheelEvent, phase, window, cx| {
6632 let scroll_sensitivity = {
6633 if event.modifiers.alt {
6634 fast_scroll_sensitivity
6635 } else {
6636 base_scroll_sensitivity
6637 }
6638 };
6639
6640 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
6641 delta = delta.coalesce(event.delta);
6642 editor.update(cx, |editor, cx| {
6643 let position_map: &PositionMap = &position_map;
6644
6645 let line_height = position_map.line_height;
6646 let max_glyph_width = position_map.em_width;
6647 let (delta, axis) = match delta {
6648 gpui::ScrollDelta::Pixels(mut pixels) => {
6649 //Trackpad
6650 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
6651 (pixels, axis)
6652 }
6653
6654 gpui::ScrollDelta::Lines(lines) => {
6655 //Not trackpad
6656 let pixels =
6657 point(lines.x * max_glyph_width, lines.y * line_height);
6658 (pixels, None)
6659 }
6660 };
6661
6662 let current_scroll_position = position_map.snapshot.scroll_position();
6663 let x = (current_scroll_position.x * max_glyph_width
6664 - (delta.x * scroll_sensitivity))
6665 / max_glyph_width;
6666 let y = (current_scroll_position.y * line_height
6667 - (delta.y * scroll_sensitivity))
6668 / line_height;
6669 let mut scroll_position =
6670 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
6671 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
6672 if forbid_vertical_scroll {
6673 scroll_position.y = current_scroll_position.y;
6674 }
6675
6676 if scroll_position != current_scroll_position {
6677 editor.scroll(scroll_position, axis, window, cx);
6678 cx.stop_propagation();
6679 } else if y < 0. {
6680 // Due to clamping, we may fail to detect cases of overscroll to the top;
6681 // We want the scroll manager to get an update in such cases and detect the change of direction
6682 // on the next frame.
6683 cx.notify();
6684 }
6685 });
6686 }
6687 }
6688 });
6689 }
6690
6691 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
6692 if self.editor.read(cx).mode.is_minimap() {
6693 return;
6694 }
6695
6696 self.paint_scroll_wheel_listener(layout, window, cx);
6697
6698 window.on_mouse_event({
6699 let position_map = layout.position_map.clone();
6700 let editor = self.editor.clone();
6701 let diff_hunk_range =
6702 layout
6703 .display_hunks
6704 .iter()
6705 .find_map(|(hunk, hunk_hitbox)| match hunk {
6706 DisplayDiffHunk::Folded { .. } => None,
6707 DisplayDiffHunk::Unfolded {
6708 multi_buffer_range, ..
6709 } => {
6710 if hunk_hitbox
6711 .as_ref()
6712 .map(|hitbox| hitbox.is_hovered(window))
6713 .unwrap_or(false)
6714 {
6715 Some(multi_buffer_range.clone())
6716 } else {
6717 None
6718 }
6719 }
6720 });
6721 let line_numbers = layout.line_numbers.clone();
6722
6723 move |event: &MouseDownEvent, phase, window, cx| {
6724 if phase == DispatchPhase::Bubble {
6725 match event.button {
6726 MouseButton::Left => editor.update(cx, |editor, cx| {
6727 let pending_mouse_down = editor
6728 .pending_mouse_down
6729 .get_or_insert_with(Default::default)
6730 .clone();
6731
6732 *pending_mouse_down.borrow_mut() = Some(event.clone());
6733
6734 Self::mouse_left_down(
6735 editor,
6736 event,
6737 diff_hunk_range.clone(),
6738 &position_map,
6739 line_numbers.as_ref(),
6740 window,
6741 cx,
6742 );
6743 }),
6744 MouseButton::Right => editor.update(cx, |editor, cx| {
6745 Self::mouse_right_down(editor, event, &position_map, window, cx);
6746 }),
6747 MouseButton::Middle => editor.update(cx, |editor, cx| {
6748 Self::mouse_middle_down(editor, event, &position_map, window, cx);
6749 }),
6750 _ => {}
6751 };
6752 }
6753 }
6754 });
6755
6756 window.on_mouse_event({
6757 let editor = self.editor.clone();
6758 let position_map = layout.position_map.clone();
6759
6760 move |event: &MouseUpEvent, phase, window, cx| {
6761 if phase == DispatchPhase::Bubble {
6762 editor.update(cx, |editor, cx| {
6763 Self::mouse_up(editor, event, &position_map, window, cx)
6764 });
6765 }
6766 }
6767 });
6768
6769 window.on_mouse_event({
6770 let editor = self.editor.clone();
6771 let position_map = layout.position_map.clone();
6772 let mut captured_mouse_down = None;
6773
6774 move |event: &MouseUpEvent, phase, window, cx| match phase {
6775 // Clear the pending mouse down during the capture phase,
6776 // so that it happens even if another event handler stops
6777 // propagation.
6778 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
6779 let pending_mouse_down = editor
6780 .pending_mouse_down
6781 .get_or_insert_with(Default::default)
6782 .clone();
6783
6784 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
6785 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
6786 captured_mouse_down = pending_mouse_down.take();
6787 window.refresh();
6788 }
6789 }),
6790 // Fire click handlers during the bubble phase.
6791 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
6792 if let Some(mouse_down) = captured_mouse_down.take() {
6793 let event = ClickEvent {
6794 down: mouse_down,
6795 up: event.clone(),
6796 };
6797 Self::click(editor, &event, &position_map, window, cx);
6798 }
6799 }),
6800 }
6801 });
6802
6803 window.on_mouse_event({
6804 let position_map = layout.position_map.clone();
6805 let editor = self.editor.clone();
6806
6807 move |event: &MouseMoveEvent, phase, window, cx| {
6808 if phase == DispatchPhase::Bubble {
6809 editor.update(cx, |editor, cx| {
6810 if editor.hover_state.focused(window, cx) {
6811 return;
6812 }
6813 if event.pressed_button == Some(MouseButton::Left)
6814 || event.pressed_button == Some(MouseButton::Middle)
6815 {
6816 Self::mouse_dragged(editor, event, &position_map, window, cx)
6817 }
6818
6819 Self::mouse_moved(editor, event, &position_map, window, cx)
6820 });
6821 }
6822 }
6823 });
6824 }
6825
6826 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
6827 bounds.top_right().x - self.style.scrollbar_width
6828 }
6829
6830 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
6831 let style = &self.style;
6832 let font_size = style.text.font_size.to_pixels(window.rem_size());
6833 let layout = window.text_system().shape_line(
6834 SharedString::from(" ".repeat(column)),
6835 font_size,
6836 &[TextRun {
6837 len: column,
6838 font: style.text.font(),
6839 color: Hsla::default(),
6840 background_color: None,
6841 underline: None,
6842 strikethrough: None,
6843 }],
6844 );
6845
6846 layout.width
6847 }
6848
6849 fn max_line_number_width(
6850 &self,
6851 snapshot: &EditorSnapshot,
6852 window: &mut Window,
6853 cx: &mut App,
6854 ) -> Pixels {
6855 let digit_count = snapshot.widest_line_number().ilog10() + 1;
6856 self.column_pixels(digit_count as usize, window, cx)
6857 }
6858
6859 fn shape_line_number(
6860 &self,
6861 text: SharedString,
6862 color: Hsla,
6863 window: &mut Window,
6864 ) -> ShapedLine {
6865 let run = TextRun {
6866 len: text.len(),
6867 font: self.style.text.font(),
6868 color,
6869 background_color: None,
6870 underline: None,
6871 strikethrough: None,
6872 };
6873 window.text_system().shape_line(
6874 text,
6875 self.style.text.font_size.to_pixels(window.rem_size()),
6876 &[run],
6877 )
6878 }
6879
6880 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
6881 let unstaged = status.has_secondary_hunk();
6882 let unstaged_hollow = ProjectSettings::get_global(cx)
6883 .git
6884 .hunk_style
6885 .map_or(false, |style| {
6886 matches!(style, GitHunkStyleSetting::UnstagedHollow)
6887 });
6888
6889 unstaged == unstaged_hollow
6890 }
6891}
6892
6893fn header_jump_data(
6894 snapshot: &EditorSnapshot,
6895 block_row_start: DisplayRow,
6896 height: u32,
6897 for_excerpt: &ExcerptInfo,
6898) -> JumpData {
6899 let range = &for_excerpt.range;
6900 let buffer = &for_excerpt.buffer;
6901 let jump_anchor = range.primary.start;
6902
6903 let excerpt_start = range.context.start;
6904 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
6905 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
6906 0
6907 } else {
6908 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
6909 jump_position.row.saturating_sub(excerpt_start_point.row)
6910 };
6911
6912 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
6913 .saturating_sub(
6914 snapshot
6915 .scroll_anchor
6916 .scroll_position(&snapshot.display_snapshot)
6917 .y as u32,
6918 );
6919
6920 JumpData::MultiBufferPoint {
6921 excerpt_id: for_excerpt.id,
6922 anchor: jump_anchor,
6923 position: jump_position,
6924 line_offset_from_top,
6925 }
6926}
6927
6928pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
6929
6930impl AcceptEditPredictionBinding {
6931 pub fn keystroke(&self) -> Option<&Keystroke> {
6932 if let Some(binding) = self.0.as_ref() {
6933 match &binding.keystrokes() {
6934 [keystroke, ..] => Some(keystroke),
6935 _ => None,
6936 }
6937 } else {
6938 None
6939 }
6940 }
6941}
6942
6943fn prepaint_gutter_button(
6944 button: IconButton,
6945 row: DisplayRow,
6946 line_height: Pixels,
6947 gutter_dimensions: &GutterDimensions,
6948 scroll_pixel_position: gpui::Point<Pixels>,
6949 gutter_hitbox: &Hitbox,
6950 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
6951 window: &mut Window,
6952 cx: &mut App,
6953) -> AnyElement {
6954 let mut button = button.into_any_element();
6955
6956 let available_space = size(
6957 AvailableSpace::MinContent,
6958 AvailableSpace::Definite(line_height),
6959 );
6960 let indicator_size = button.layout_as_root(available_space, window, cx);
6961
6962 let blame_width = gutter_dimensions.git_blame_entries_width;
6963 let gutter_width = display_hunks
6964 .binary_search_by(|(hunk, _)| match hunk {
6965 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
6966 DisplayDiffHunk::Unfolded {
6967 display_row_range, ..
6968 } => {
6969 if display_row_range.end <= row {
6970 Ordering::Less
6971 } else if display_row_range.start > row {
6972 Ordering::Greater
6973 } else {
6974 Ordering::Equal
6975 }
6976 }
6977 })
6978 .ok()
6979 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
6980 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
6981
6982 let mut x = left_offset;
6983 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
6984 - indicator_size.width
6985 - left_offset;
6986 x += available_width / 2.;
6987
6988 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
6989 y += (line_height - indicator_size.height) / 2.;
6990
6991 button.prepaint_as_root(
6992 gutter_hitbox.origin + point(x, y),
6993 available_space,
6994 window,
6995 cx,
6996 );
6997 button
6998}
6999
7000fn render_inline_blame_entry(
7001 blame_entry: BlameEntry,
7002 style: &EditorStyle,
7003 cx: &mut App,
7004) -> Option<AnyElement> {
7005 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
7006 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
7007}
7008
7009fn render_blame_entry_popover(
7010 blame_entry: BlameEntry,
7011 scroll_handle: ScrollHandle,
7012 commit_message: Option<ParsedCommitMessage>,
7013 markdown: Entity<Markdown>,
7014 workspace: WeakEntity<Workspace>,
7015 blame: &Entity<GitBlame>,
7016 window: &mut Window,
7017 cx: &mut App,
7018) -> Option<AnyElement> {
7019 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
7020 let blame = blame.read(cx);
7021 let repository = blame.repository(cx)?.clone();
7022 renderer.render_blame_entry_popover(
7023 blame_entry,
7024 scroll_handle,
7025 commit_message,
7026 markdown,
7027 repository,
7028 workspace,
7029 window,
7030 cx,
7031 )
7032}
7033
7034fn render_blame_entry(
7035 ix: usize,
7036 blame: &Entity<GitBlame>,
7037 blame_entry: BlameEntry,
7038 style: &EditorStyle,
7039 last_used_color: &mut Option<(PlayerColor, Oid)>,
7040 editor: Entity<Editor>,
7041 workspace: Entity<Workspace>,
7042 renderer: Arc<dyn BlameRenderer>,
7043 cx: &mut App,
7044) -> Option<AnyElement> {
7045 let mut sha_color = cx
7046 .theme()
7047 .players()
7048 .color_for_participant(blame_entry.sha.into());
7049
7050 // If the last color we used is the same as the one we get for this line, but
7051 // the commit SHAs are different, then we try again to get a different color.
7052 match *last_used_color {
7053 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
7054 let index: u32 = blame_entry.sha.into();
7055 sha_color = cx.theme().players().color_for_participant(index + 1);
7056 }
7057 _ => {}
7058 };
7059 last_used_color.replace((sha_color, blame_entry.sha));
7060
7061 let blame = blame.read(cx);
7062 let details = blame.details_for_entry(&blame_entry);
7063 let repository = blame.repository(cx)?;
7064 renderer.render_blame_entry(
7065 &style.text,
7066 blame_entry,
7067 details,
7068 repository,
7069 workspace.downgrade(),
7070 editor,
7071 ix,
7072 sha_color.cursor,
7073 cx,
7074 )
7075}
7076
7077#[derive(Debug)]
7078pub(crate) struct LineWithInvisibles {
7079 fragments: SmallVec<[LineFragment; 1]>,
7080 invisibles: Vec<Invisible>,
7081 len: usize,
7082 pub(crate) width: Pixels,
7083 font_size: Pixels,
7084}
7085
7086enum LineFragment {
7087 Text(ShapedLine),
7088 Element {
7089 id: FoldId,
7090 element: Option<AnyElement>,
7091 size: Size<Pixels>,
7092 len: usize,
7093 },
7094}
7095
7096impl fmt::Debug for LineFragment {
7097 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
7098 match self {
7099 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
7100 LineFragment::Element { size, len, .. } => f
7101 .debug_struct("Element")
7102 .field("size", size)
7103 .field("len", len)
7104 .finish(),
7105 }
7106 }
7107}
7108
7109impl LineWithInvisibles {
7110 fn from_chunks<'a>(
7111 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
7112 editor_style: &EditorStyle,
7113 max_line_len: usize,
7114 max_line_count: usize,
7115 editor_mode: &EditorMode,
7116 text_width: Pixels,
7117 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7118 window: &mut Window,
7119 cx: &mut App,
7120 ) -> Vec<Self> {
7121 let text_style = &editor_style.text;
7122 let mut layouts = Vec::with_capacity(max_line_count);
7123 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
7124 let mut line = String::new();
7125 let mut invisibles = Vec::new();
7126 let mut width = Pixels::ZERO;
7127 let mut len = 0;
7128 let mut styles = Vec::new();
7129 let mut non_whitespace_added = false;
7130 let mut row = 0;
7131 let mut line_exceeded_max_len = false;
7132 let font_size = text_style.font_size.to_pixels(window.rem_size());
7133
7134 let ellipsis = SharedString::from("⋯");
7135
7136 for highlighted_chunk in chunks.chain([HighlightedChunk {
7137 text: "\n",
7138 style: None,
7139 is_tab: false,
7140 is_inlay: false,
7141 replacement: None,
7142 }]) {
7143 if let Some(replacement) = highlighted_chunk.replacement {
7144 if !line.is_empty() {
7145 let shaped_line =
7146 window
7147 .text_system()
7148 .shape_line(line.clone().into(), font_size, &styles);
7149 width += shaped_line.width;
7150 len += shaped_line.len;
7151 fragments.push(LineFragment::Text(shaped_line));
7152 line.clear();
7153 styles.clear();
7154 }
7155
7156 match replacement {
7157 ChunkReplacement::Renderer(renderer) => {
7158 let available_width = if renderer.constrain_width {
7159 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
7160 ellipsis.clone()
7161 } else {
7162 SharedString::from(Arc::from(highlighted_chunk.text))
7163 };
7164 let shaped_line = window.text_system().shape_line(
7165 chunk,
7166 font_size,
7167 &[text_style.to_run(highlighted_chunk.text.len())],
7168 );
7169 AvailableSpace::Definite(shaped_line.width)
7170 } else {
7171 AvailableSpace::MinContent
7172 };
7173
7174 let mut element = (renderer.render)(&mut ChunkRendererContext {
7175 context: cx,
7176 window,
7177 max_width: text_width,
7178 });
7179 let line_height = text_style.line_height_in_pixels(window.rem_size());
7180 let size = element.layout_as_root(
7181 size(available_width, AvailableSpace::Definite(line_height)),
7182 window,
7183 cx,
7184 );
7185
7186 width += size.width;
7187 len += highlighted_chunk.text.len();
7188 fragments.push(LineFragment::Element {
7189 id: renderer.id,
7190 element: Some(element),
7191 size,
7192 len: highlighted_chunk.text.len(),
7193 });
7194 }
7195 ChunkReplacement::Str(x) => {
7196 let text_style = if let Some(style) = highlighted_chunk.style {
7197 Cow::Owned(text_style.clone().highlight(style))
7198 } else {
7199 Cow::Borrowed(text_style)
7200 };
7201
7202 let run = TextRun {
7203 len: x.len(),
7204 font: text_style.font(),
7205 color: text_style.color,
7206 background_color: text_style.background_color,
7207 underline: text_style.underline,
7208 strikethrough: text_style.strikethrough,
7209 };
7210 let line_layout = window
7211 .text_system()
7212 .shape_line(x, font_size, &[run])
7213 .with_len(highlighted_chunk.text.len());
7214
7215 width += line_layout.width;
7216 len += highlighted_chunk.text.len();
7217 fragments.push(LineFragment::Text(line_layout))
7218 }
7219 }
7220 } else {
7221 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
7222 if ix > 0 {
7223 let shaped_line = window.text_system().shape_line(
7224 line.clone().into(),
7225 font_size,
7226 &styles,
7227 );
7228 width += shaped_line.width;
7229 len += shaped_line.len;
7230 fragments.push(LineFragment::Text(shaped_line));
7231 layouts.push(Self {
7232 width: mem::take(&mut width),
7233 len: mem::take(&mut len),
7234 fragments: mem::take(&mut fragments),
7235 invisibles: std::mem::take(&mut invisibles),
7236 font_size,
7237 });
7238
7239 line.clear();
7240 styles.clear();
7241 row += 1;
7242 line_exceeded_max_len = false;
7243 non_whitespace_added = false;
7244 if row == max_line_count {
7245 return layouts;
7246 }
7247 }
7248
7249 if !line_chunk.is_empty() && !line_exceeded_max_len {
7250 let text_style = if let Some(style) = highlighted_chunk.style {
7251 Cow::Owned(text_style.clone().highlight(style))
7252 } else {
7253 Cow::Borrowed(text_style)
7254 };
7255
7256 if line.len() + line_chunk.len() > max_line_len {
7257 let mut chunk_len = max_line_len - line.len();
7258 while !line_chunk.is_char_boundary(chunk_len) {
7259 chunk_len -= 1;
7260 }
7261 line_chunk = &line_chunk[..chunk_len];
7262 line_exceeded_max_len = true;
7263 }
7264
7265 styles.push(TextRun {
7266 len: line_chunk.len(),
7267 font: text_style.font(),
7268 color: text_style.color,
7269 background_color: text_style.background_color,
7270 underline: text_style.underline,
7271 strikethrough: text_style.strikethrough,
7272 });
7273
7274 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
7275 // Line wrap pads its contents with fake whitespaces,
7276 // avoid printing them
7277 let is_soft_wrapped = is_row_soft_wrapped(row);
7278 if highlighted_chunk.is_tab {
7279 if non_whitespace_added || !is_soft_wrapped {
7280 invisibles.push(Invisible::Tab {
7281 line_start_offset: line.len(),
7282 line_end_offset: line.len() + line_chunk.len(),
7283 });
7284 }
7285 } else {
7286 invisibles.extend(line_chunk.char_indices().filter_map(
7287 |(index, c)| {
7288 let is_whitespace = c.is_whitespace();
7289 non_whitespace_added |= !is_whitespace;
7290 if is_whitespace
7291 && (non_whitespace_added || !is_soft_wrapped)
7292 {
7293 Some(Invisible::Whitespace {
7294 line_offset: line.len() + index,
7295 })
7296 } else {
7297 None
7298 }
7299 },
7300 ))
7301 }
7302 }
7303
7304 line.push_str(line_chunk);
7305 }
7306 }
7307 }
7308 }
7309
7310 layouts
7311 }
7312
7313 fn prepaint(
7314 &mut self,
7315 line_height: Pixels,
7316 scroll_pixel_position: gpui::Point<Pixels>,
7317 row: DisplayRow,
7318 content_origin: gpui::Point<Pixels>,
7319 line_elements: &mut SmallVec<[AnyElement; 1]>,
7320 window: &mut Window,
7321 cx: &mut App,
7322 ) {
7323 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
7324 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
7325 for fragment in &mut self.fragments {
7326 match fragment {
7327 LineFragment::Text(line) => {
7328 fragment_origin.x += line.width;
7329 }
7330 LineFragment::Element { element, size, .. } => {
7331 let mut element = element
7332 .take()
7333 .expect("you can't prepaint LineWithInvisibles twice");
7334
7335 // Center the element vertically within the line.
7336 let mut element_origin = fragment_origin;
7337 element_origin.y += (line_height - size.height) / 2.;
7338 element.prepaint_at(element_origin, window, cx);
7339 line_elements.push(element);
7340
7341 fragment_origin.x += size.width;
7342 }
7343 }
7344 }
7345 }
7346
7347 fn draw(
7348 &self,
7349 layout: &EditorLayout,
7350 row: DisplayRow,
7351 content_origin: gpui::Point<Pixels>,
7352 whitespace_setting: ShowWhitespaceSetting,
7353 selection_ranges: &[Range<DisplayPoint>],
7354 window: &mut Window,
7355 cx: &mut App,
7356 ) {
7357 let line_height = layout.position_map.line_height;
7358 let line_y = line_height
7359 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
7360
7361 let mut fragment_origin =
7362 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
7363
7364 for fragment in &self.fragments {
7365 match fragment {
7366 LineFragment::Text(line) => {
7367 line.paint(fragment_origin, line_height, window, cx)
7368 .log_err();
7369 fragment_origin.x += line.width;
7370 }
7371 LineFragment::Element { size, .. } => {
7372 fragment_origin.x += size.width;
7373 }
7374 }
7375 }
7376
7377 self.draw_invisibles(
7378 selection_ranges,
7379 layout,
7380 content_origin,
7381 line_y,
7382 row,
7383 line_height,
7384 whitespace_setting,
7385 window,
7386 cx,
7387 );
7388 }
7389
7390 fn draw_background(
7391 &self,
7392 layout: &EditorLayout,
7393 row: DisplayRow,
7394 content_origin: gpui::Point<Pixels>,
7395 window: &mut Window,
7396 cx: &mut App,
7397 ) {
7398 let line_height = layout.position_map.line_height;
7399 let line_y = line_height
7400 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
7401
7402 let mut fragment_origin =
7403 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
7404
7405 for fragment in &self.fragments {
7406 match fragment {
7407 LineFragment::Text(line) => {
7408 line.paint_background(fragment_origin, line_height, window, cx)
7409 .log_err();
7410 fragment_origin.x += line.width;
7411 }
7412 LineFragment::Element { size, .. } => {
7413 fragment_origin.x += size.width;
7414 }
7415 }
7416 }
7417 }
7418
7419 fn draw_invisibles(
7420 &self,
7421 selection_ranges: &[Range<DisplayPoint>],
7422 layout: &EditorLayout,
7423 content_origin: gpui::Point<Pixels>,
7424 line_y: Pixels,
7425 row: DisplayRow,
7426 line_height: Pixels,
7427 whitespace_setting: ShowWhitespaceSetting,
7428 window: &mut Window,
7429 cx: &mut App,
7430 ) {
7431 let extract_whitespace_info = |invisible: &Invisible| {
7432 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
7433 Invisible::Tab {
7434 line_start_offset,
7435 line_end_offset,
7436 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
7437 Invisible::Whitespace { line_offset } => {
7438 (*line_offset, line_offset + 1, &layout.space_invisible)
7439 }
7440 };
7441
7442 let x_offset = self.x_for_index(token_offset);
7443 let invisible_offset =
7444 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
7445 let origin = content_origin
7446 + gpui::point(
7447 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
7448 line_y,
7449 );
7450
7451 (
7452 [token_offset, token_end_offset],
7453 Box::new(move |window: &mut Window, cx: &mut App| {
7454 invisible_symbol
7455 .paint(origin, line_height, window, cx)
7456 .log_err();
7457 }),
7458 )
7459 };
7460
7461 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
7462 match whitespace_setting {
7463 ShowWhitespaceSetting::None => (),
7464 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
7465 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
7466 let invisible_point = DisplayPoint::new(row, start as u32);
7467 if !selection_ranges
7468 .iter()
7469 .any(|region| region.start <= invisible_point && invisible_point < region.end)
7470 {
7471 return;
7472 }
7473
7474 paint(window, cx);
7475 }),
7476
7477 ShowWhitespaceSetting::Trailing => {
7478 let mut previous_start = self.len;
7479 for ([start, end], paint) in invisible_iter.rev() {
7480 if previous_start != end {
7481 break;
7482 }
7483 previous_start = start;
7484 paint(window, cx);
7485 }
7486 }
7487
7488 // For a whitespace to be on a boundary, any of the following conditions need to be met:
7489 // - It is a tab
7490 // - It is adjacent to an edge (start or end)
7491 // - It is adjacent to a whitespace (left or right)
7492 ShowWhitespaceSetting::Boundary => {
7493 // We'll need to keep track of the last invisible we've seen and then check if we are adjacent to it for some of
7494 // the above cases.
7495 // Note: We zip in the original `invisibles` to check for tab equality
7496 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
7497 for (([start, end], paint), invisible) in
7498 invisible_iter.zip_eq(self.invisibles.iter())
7499 {
7500 let should_render = match (&last_seen, invisible) {
7501 (_, Invisible::Tab { .. }) => true,
7502 (Some((_, last_end, _)), _) => *last_end == start,
7503 _ => false,
7504 };
7505
7506 if should_render || start == 0 || end == self.len {
7507 paint(window, cx);
7508
7509 // Since we are scanning from the left, we will skip over the first available whitespace that is part
7510 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
7511 if let Some((should_render_last, last_end, paint_last)) = last_seen {
7512 // Note that we need to make sure that the last one is actually adjacent
7513 if !should_render_last && last_end == start {
7514 paint_last(window, cx);
7515 }
7516 }
7517 }
7518
7519 // Manually render anything within a selection
7520 let invisible_point = DisplayPoint::new(row, start as u32);
7521 if selection_ranges.iter().any(|region| {
7522 region.start <= invisible_point && invisible_point < region.end
7523 }) {
7524 paint(window, cx);
7525 }
7526
7527 last_seen = Some((should_render, end, paint));
7528 }
7529 }
7530 }
7531 }
7532
7533 pub fn x_for_index(&self, index: usize) -> Pixels {
7534 let mut fragment_start_x = Pixels::ZERO;
7535 let mut fragment_start_index = 0;
7536
7537 for fragment in &self.fragments {
7538 match fragment {
7539 LineFragment::Text(shaped_line) => {
7540 let fragment_end_index = fragment_start_index + shaped_line.len;
7541 if index < fragment_end_index {
7542 return fragment_start_x
7543 + shaped_line.x_for_index(index - fragment_start_index);
7544 }
7545 fragment_start_x += shaped_line.width;
7546 fragment_start_index = fragment_end_index;
7547 }
7548 LineFragment::Element { len, size, .. } => {
7549 let fragment_end_index = fragment_start_index + len;
7550 if index < fragment_end_index {
7551 return fragment_start_x;
7552 }
7553 fragment_start_x += size.width;
7554 fragment_start_index = fragment_end_index;
7555 }
7556 }
7557 }
7558
7559 fragment_start_x
7560 }
7561
7562 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
7563 let mut fragment_start_x = Pixels::ZERO;
7564 let mut fragment_start_index = 0;
7565
7566 for fragment in &self.fragments {
7567 match fragment {
7568 LineFragment::Text(shaped_line) => {
7569 let fragment_end_x = fragment_start_x + shaped_line.width;
7570 if x < fragment_end_x {
7571 return Some(
7572 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
7573 );
7574 }
7575 fragment_start_x = fragment_end_x;
7576 fragment_start_index += shaped_line.len;
7577 }
7578 LineFragment::Element { len, size, .. } => {
7579 let fragment_end_x = fragment_start_x + size.width;
7580 if x < fragment_end_x {
7581 return Some(fragment_start_index);
7582 }
7583 fragment_start_index += len;
7584 fragment_start_x = fragment_end_x;
7585 }
7586 }
7587 }
7588
7589 None
7590 }
7591
7592 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
7593 let mut fragment_start_index = 0;
7594
7595 for fragment in &self.fragments {
7596 match fragment {
7597 LineFragment::Text(shaped_line) => {
7598 let fragment_end_index = fragment_start_index + shaped_line.len;
7599 if index < fragment_end_index {
7600 return shaped_line.font_id_for_index(index - fragment_start_index);
7601 }
7602 fragment_start_index = fragment_end_index;
7603 }
7604 LineFragment::Element { len, .. } => {
7605 let fragment_end_index = fragment_start_index + len;
7606 if index < fragment_end_index {
7607 return None;
7608 }
7609 fragment_start_index = fragment_end_index;
7610 }
7611 }
7612 }
7613
7614 None
7615 }
7616}
7617
7618#[derive(Debug, Clone, Copy, PartialEq, Eq)]
7619enum Invisible {
7620 /// A tab character
7621 ///
7622 /// A tab character is internally represented by spaces (configured by the user's tab width)
7623 /// aligned to the nearest column, so it's necessary to store the start and end offset for
7624 /// adjacency checks.
7625 Tab {
7626 line_start_offset: usize,
7627 line_end_offset: usize,
7628 },
7629 Whitespace {
7630 line_offset: usize,
7631 },
7632}
7633
7634impl EditorElement {
7635 /// Returns the rem size to use when rendering the [`EditorElement`].
7636 ///
7637 /// This allows UI elements to scale based on the `buffer_font_size`.
7638 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
7639 match self.editor.read(cx).mode {
7640 EditorMode::Full {
7641 scale_ui_elements_with_buffer_font_size: true,
7642 ..
7643 }
7644 | EditorMode::Minimap { .. } => {
7645 let buffer_font_size = self.style.text.font_size;
7646 match buffer_font_size {
7647 AbsoluteLength::Pixels(pixels) => {
7648 let rem_size_scale = {
7649 // Our default UI font size is 14px on a 16px base scale.
7650 // This means the default UI font size is 0.875rems.
7651 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
7652
7653 // We then determine the delta between a single rem and the default font
7654 // size scale.
7655 let default_font_size_delta = 1. - default_font_size_scale;
7656
7657 // Finally, we add this delta to 1rem to get the scale factor that
7658 // should be used to scale up the UI.
7659 1. + default_font_size_delta
7660 };
7661
7662 Some(pixels * rem_size_scale)
7663 }
7664 AbsoluteLength::Rems(rems) => {
7665 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
7666 }
7667 }
7668 }
7669 // We currently use single-line and auto-height editors in UI contexts,
7670 // so we don't want to scale everything with the buffer font size, as it
7671 // ends up looking off.
7672 _ => None,
7673 }
7674 }
7675
7676 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
7677 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
7678 parent.upgrade()
7679 } else {
7680 Some(self.editor.clone())
7681 }
7682 }
7683}
7684
7685impl Element for EditorElement {
7686 type RequestLayoutState = ();
7687 type PrepaintState = EditorLayout;
7688
7689 fn id(&self) -> Option<ElementId> {
7690 None
7691 }
7692
7693 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
7694 None
7695 }
7696
7697 fn request_layout(
7698 &mut self,
7699 _: Option<&GlobalElementId>,
7700 _inspector_id: Option<&gpui::InspectorElementId>,
7701 window: &mut Window,
7702 cx: &mut App,
7703 ) -> (gpui::LayoutId, ()) {
7704 let rem_size = self.rem_size(cx);
7705 window.with_rem_size(rem_size, |window| {
7706 self.editor.update(cx, |editor, cx| {
7707 editor.set_style(self.style.clone(), window, cx);
7708
7709 let layout_id = match editor.mode {
7710 EditorMode::SingleLine { auto_width } => {
7711 let rem_size = window.rem_size();
7712
7713 let height = self.style.text.line_height_in_pixels(rem_size);
7714 if auto_width {
7715 let editor_handle = cx.entity().clone();
7716 let style = self.style.clone();
7717 window.request_measured_layout(
7718 Style::default(),
7719 move |_, _, window, cx| {
7720 let editor_snapshot = editor_handle
7721 .update(cx, |editor, cx| editor.snapshot(window, cx));
7722 let line = Self::layout_lines(
7723 DisplayRow(0)..DisplayRow(1),
7724 &editor_snapshot,
7725 &style,
7726 px(f32::MAX),
7727 |_| false, // Single lines never soft wrap
7728 window,
7729 cx,
7730 )
7731 .pop()
7732 .unwrap();
7733
7734 let font_id =
7735 window.text_system().resolve_font(&style.text.font());
7736 let font_size =
7737 style.text.font_size.to_pixels(window.rem_size());
7738 let em_width =
7739 window.text_system().em_width(font_id, font_size).unwrap();
7740
7741 size(line.width + em_width, height)
7742 },
7743 )
7744 } else {
7745 let mut style = Style::default();
7746 style.size.height = height.into();
7747 style.size.width = relative(1.).into();
7748 window.request_layout(style, None, cx)
7749 }
7750 }
7751 EditorMode::AutoHeight {
7752 min_lines,
7753 max_lines,
7754 } => {
7755 let editor_handle = cx.entity().clone();
7756 let max_line_number_width =
7757 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
7758 window.request_measured_layout(
7759 Style::default(),
7760 move |known_dimensions, available_space, window, cx| {
7761 editor_handle
7762 .update(cx, |editor, cx| {
7763 compute_auto_height_layout(
7764 editor,
7765 min_lines,
7766 max_lines,
7767 max_line_number_width,
7768 known_dimensions,
7769 available_space.width,
7770 window,
7771 cx,
7772 )
7773 })
7774 .unwrap_or_default()
7775 },
7776 )
7777 }
7778 EditorMode::Minimap { .. } => {
7779 let mut style = Style::default();
7780 style.size.width = relative(1.).into();
7781 style.size.height = relative(1.).into();
7782 window.request_layout(style, None, cx)
7783 }
7784 EditorMode::Full {
7785 sized_by_content, ..
7786 } => {
7787 let mut style = Style::default();
7788 style.size.width = relative(1.).into();
7789 if sized_by_content {
7790 let snapshot = editor.snapshot(window, cx);
7791 let line_height =
7792 self.style.text.line_height_in_pixels(window.rem_size());
7793 let scroll_height =
7794 (snapshot.max_point().row().next_row().0 as f32) * line_height;
7795 style.size.height = scroll_height.into();
7796 } else {
7797 style.size.height = relative(1.).into();
7798 }
7799 window.request_layout(style, None, cx)
7800 }
7801 };
7802
7803 (layout_id, ())
7804 })
7805 })
7806 }
7807
7808 fn prepaint(
7809 &mut self,
7810 _: Option<&GlobalElementId>,
7811 _inspector_id: Option<&gpui::InspectorElementId>,
7812 bounds: Bounds<Pixels>,
7813 _: &mut Self::RequestLayoutState,
7814 window: &mut Window,
7815 cx: &mut App,
7816 ) -> Self::PrepaintState {
7817 let text_style = TextStyleRefinement {
7818 font_size: Some(self.style.text.font_size),
7819 line_height: Some(self.style.text.line_height),
7820 ..Default::default()
7821 };
7822 let focus_handle = self.editor.focus_handle(cx);
7823 window.set_view_id(self.editor.entity_id());
7824 window.set_focus_handle(&focus_handle, cx);
7825
7826 let rem_size = self.rem_size(cx);
7827 window.with_rem_size(rem_size, |window| {
7828 window.with_text_style(Some(text_style), |window| {
7829 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7830 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
7831 (editor.snapshot(window, cx), editor.read_only(cx))
7832 });
7833 let style = self.style.clone();
7834
7835 let font_id = window.text_system().resolve_font(&style.text.font());
7836 let font_size = style.text.font_size.to_pixels(window.rem_size());
7837 let line_height = style.text.line_height_in_pixels(window.rem_size());
7838 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
7839 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
7840 let glyph_grid_cell = size(em_advance, line_height);
7841
7842 let gutter_dimensions = snapshot
7843 .gutter_dimensions(
7844 font_id,
7845 font_size,
7846 self.max_line_number_width(&snapshot, window, cx),
7847 cx,
7848 )
7849 .or_else(|| {
7850 self.editor.read(cx).offset_content.then(|| {
7851 GutterDimensions::default_with_margin(font_id, font_size, cx)
7852 })
7853 })
7854 .unwrap_or_default();
7855 let text_width = bounds.size.width - gutter_dimensions.width;
7856
7857 let settings = EditorSettings::get_global(cx);
7858 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
7859 let vertical_scrollbar_width = (scrollbars_shown
7860 && settings.scrollbar.axes.vertical
7861 && self.editor.read(cx).show_scrollbars.vertical)
7862 .then_some(style.scrollbar_width)
7863 .unwrap_or_default();
7864 let minimap_width = self
7865 .editor
7866 .read(cx)
7867 .minimap()
7868 .is_some()
7869 .then(|| match settings.minimap.show {
7870 ShowMinimap::Auto => {
7871 scrollbars_shown.then_some(MinimapLayout::MINIMAP_WIDTH)
7872 }
7873 _ => Some(MinimapLayout::MINIMAP_WIDTH),
7874 })
7875 .flatten()
7876 .filter(|minimap_width| {
7877 text_width - vertical_scrollbar_width - *minimap_width > *minimap_width
7878 })
7879 .unwrap_or_default();
7880
7881 let right_margin = minimap_width + vertical_scrollbar_width;
7882
7883 let editor_width =
7884 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
7885
7886 let editor_margins = EditorMargins {
7887 gutter: gutter_dimensions,
7888 right: right_margin,
7889 };
7890
7891 // Offset the content_bounds from the text_bounds by the gutter margin (which
7892 // is roughly half a character wide) to make hit testing work more like how we want.
7893 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
7894
7895 let editor_content_width = editor_width - content_offset.x;
7896
7897 snapshot = self.editor.update(cx, |editor, cx| {
7898 editor.last_bounds = Some(bounds);
7899 editor.gutter_dimensions = gutter_dimensions;
7900 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
7901
7902 if matches!(
7903 editor.mode,
7904 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
7905 ) {
7906 snapshot
7907 } else {
7908 let wrap_width_for = |column: u32| (column as f32 * em_advance).ceil();
7909 let wrap_width = match editor.soft_wrap_mode(cx) {
7910 SoftWrap::GitDiff => None,
7911 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
7912 SoftWrap::EditorWidth => Some(editor_content_width),
7913 SoftWrap::Column(column) => Some(wrap_width_for(column)),
7914 SoftWrap::Bounded(column) => {
7915 Some(editor_content_width.min(wrap_width_for(column)))
7916 }
7917 };
7918
7919 if editor.set_wrap_width(wrap_width, cx) {
7920 editor.snapshot(window, cx)
7921 } else {
7922 snapshot
7923 }
7924 }
7925 });
7926
7927 let wrap_guides = self
7928 .editor
7929 .read(cx)
7930 .wrap_guides(cx)
7931 .iter()
7932 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
7933 .collect::<SmallVec<[_; 2]>>();
7934
7935 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
7936 let gutter_hitbox = window.insert_hitbox(
7937 gutter_bounds(bounds, gutter_dimensions),
7938 HitboxBehavior::Normal,
7939 );
7940 let text_hitbox = window.insert_hitbox(
7941 Bounds {
7942 origin: gutter_hitbox.top_right(),
7943 size: size(text_width, bounds.size.height),
7944 },
7945 HitboxBehavior::Normal,
7946 );
7947
7948 let content_origin = text_hitbox.origin + content_offset;
7949
7950 let editor_text_bounds =
7951 Bounds::from_corners(content_origin, bounds.bottom_right());
7952
7953 let height_in_lines = editor_text_bounds.size.height / line_height;
7954
7955 let max_row = snapshot.max_point().row().as_f32();
7956
7957 // The max scroll position for the top of the window
7958 let max_scroll_top = if matches!(
7959 snapshot.mode,
7960 EditorMode::SingleLine { .. }
7961 | EditorMode::AutoHeight { .. }
7962 | EditorMode::Full {
7963 sized_by_content: true,
7964 ..
7965 }
7966 ) {
7967 (max_row - height_in_lines + 1.).max(0.)
7968 } else {
7969 let settings = EditorSettings::get_global(cx);
7970 match settings.scroll_beyond_last_line {
7971 ScrollBeyondLastLine::OnePage => max_row,
7972 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
7973 ScrollBeyondLastLine::VerticalScrollMargin => {
7974 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
7975 .max(0.)
7976 }
7977 }
7978 };
7979
7980 // TODO: Autoscrolling for both axes
7981 let mut autoscroll_request = None;
7982 let mut autoscroll_containing_element = false;
7983 let mut autoscroll_horizontally = false;
7984 self.editor.update(cx, |editor, cx| {
7985 autoscroll_request = editor.autoscroll_request();
7986 autoscroll_containing_element =
7987 autoscroll_request.is_some() || editor.has_pending_selection();
7988 // TODO: Is this horizontal or vertical?!
7989 autoscroll_horizontally = editor.autoscroll_vertically(
7990 bounds,
7991 line_height,
7992 max_scroll_top,
7993 window,
7994 cx,
7995 );
7996 snapshot = editor.snapshot(window, cx);
7997 });
7998
7999 let mut scroll_position = snapshot.scroll_position();
8000 // The scroll position is a fractional point, the whole number of which represents
8001 // the top of the window in terms of display rows.
8002 let start_row = DisplayRow(scroll_position.y as u32);
8003 let max_row = snapshot.max_point().row();
8004 let end_row = cmp::min(
8005 (scroll_position.y + height_in_lines).ceil() as u32,
8006 max_row.next_row().0,
8007 );
8008 let end_row = DisplayRow(end_row);
8009
8010 let row_infos = snapshot
8011 .row_infos(start_row)
8012 .take((start_row..end_row).len())
8013 .collect::<Vec<RowInfo>>();
8014 let is_row_soft_wrapped = |row: usize| {
8015 row_infos
8016 .get(row)
8017 .map_or(true, |info| info.buffer_row.is_none())
8018 };
8019
8020 let start_anchor = if start_row == Default::default() {
8021 Anchor::min()
8022 } else {
8023 snapshot.buffer_snapshot.anchor_before(
8024 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
8025 )
8026 };
8027 let end_anchor = if end_row > max_row {
8028 Anchor::max()
8029 } else {
8030 snapshot.buffer_snapshot.anchor_before(
8031 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
8032 )
8033 };
8034
8035 let mut highlighted_rows = self
8036 .editor
8037 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
8038
8039 let is_light = cx.theme().appearance().is_light();
8040
8041 for (ix, row_info) in row_infos.iter().enumerate() {
8042 let Some(diff_status) = row_info.diff_status else {
8043 continue;
8044 };
8045
8046 let background_color = match diff_status.kind {
8047 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
8048 DiffHunkStatusKind::Deleted => {
8049 cx.theme().colors().version_control_deleted
8050 }
8051 DiffHunkStatusKind::Modified => {
8052 debug_panic!("modified diff status for row info");
8053 continue;
8054 }
8055 };
8056
8057 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
8058
8059 let hollow_highlight = LineHighlight {
8060 background: (background_color.opacity(if is_light {
8061 0.08
8062 } else {
8063 0.06
8064 }))
8065 .into(),
8066 border: Some(if is_light {
8067 background_color.opacity(0.48)
8068 } else {
8069 background_color.opacity(0.36)
8070 }),
8071 include_gutter: true,
8072 type_id: None,
8073 };
8074
8075 let filled_highlight = LineHighlight {
8076 background: solid_background(background_color.opacity(hunk_opacity)),
8077 border: None,
8078 include_gutter: true,
8079 type_id: None,
8080 };
8081
8082 let background = if Self::diff_hunk_hollow(diff_status, cx) {
8083 hollow_highlight
8084 } else {
8085 filled_highlight
8086 };
8087
8088 highlighted_rows
8089 .entry(start_row + DisplayRow(ix as u32))
8090 .or_insert(background);
8091 }
8092
8093 let highlighted_ranges = self
8094 .editor_with_selections(cx)
8095 .map(|editor| {
8096 editor.read(cx).background_highlights_in_range(
8097 start_anchor..end_anchor,
8098 &snapshot.display_snapshot,
8099 cx.theme(),
8100 )
8101 })
8102 .unwrap_or_default();
8103 let highlighted_gutter_ranges =
8104 self.editor.read(cx).gutter_highlights_in_range(
8105 start_anchor..end_anchor,
8106 &snapshot.display_snapshot,
8107 cx,
8108 );
8109
8110 let document_colors = self
8111 .editor
8112 .read(cx)
8113 .colors
8114 .as_ref()
8115 .map(|colors| colors.editor_display_highlights(&snapshot));
8116 let redacted_ranges = self.editor.read(cx).redacted_ranges(
8117 start_anchor..end_anchor,
8118 &snapshot.display_snapshot,
8119 cx,
8120 );
8121
8122 let (local_selections, selected_buffer_ids): (
8123 Vec<Selection<Point>>,
8124 Vec<BufferId>,
8125 ) = self
8126 .editor_with_selections(cx)
8127 .map(|editor| {
8128 editor.update(cx, |editor, cx| {
8129 let all_selections = editor.selections.all::<Point>(cx);
8130 let selected_buffer_ids = if editor.is_singleton(cx) {
8131 Vec::new()
8132 } else {
8133 let mut selected_buffer_ids =
8134 Vec::with_capacity(all_selections.len());
8135
8136 for selection in all_selections {
8137 for buffer_id in snapshot
8138 .buffer_snapshot
8139 .buffer_ids_for_range(selection.range())
8140 {
8141 if selected_buffer_ids.last() != Some(&buffer_id) {
8142 selected_buffer_ids.push(buffer_id);
8143 }
8144 }
8145 }
8146
8147 selected_buffer_ids
8148 };
8149
8150 let mut selections = editor
8151 .selections
8152 .disjoint_in_range(start_anchor..end_anchor, cx);
8153 selections.extend(editor.selections.pending(cx));
8154
8155 (selections, selected_buffer_ids)
8156 })
8157 })
8158 .unwrap_or_default();
8159
8160 let (selections, mut active_rows, newest_selection_head) = self
8161 .layout_selections(
8162 start_anchor,
8163 end_anchor,
8164 &local_selections,
8165 &snapshot,
8166 start_row,
8167 end_row,
8168 window,
8169 cx,
8170 );
8171 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
8172 editor.active_breakpoints(start_row..end_row, window, cx)
8173 });
8174 for (display_row, (_, bp, state)) in &breakpoint_rows {
8175 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
8176 active_rows.entry(*display_row).or_default().breakpoint = true;
8177 }
8178 }
8179
8180 let line_numbers = self.layout_line_numbers(
8181 Some(&gutter_hitbox),
8182 gutter_dimensions,
8183 line_height,
8184 scroll_position,
8185 start_row..end_row,
8186 &row_infos,
8187 &active_rows,
8188 newest_selection_head,
8189 &snapshot,
8190 window,
8191 cx,
8192 );
8193
8194 // We add the gutter breakpoint indicator to breakpoint_rows after painting
8195 // line numbers so we don't paint a line number debug accent color if a user
8196 // has their mouse over that line when a breakpoint isn't there
8197 self.editor.update(cx, |editor, _| {
8198 if let Some(phantom_breakpoint) = &mut editor
8199 .gutter_breakpoint_indicator
8200 .0
8201 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
8202 {
8203 // Is there a non-phantom breakpoint on this line?
8204 phantom_breakpoint.collides_with_existing_breakpoint = true;
8205 breakpoint_rows
8206 .entry(phantom_breakpoint.display_row)
8207 .or_insert_with(|| {
8208 let position = snapshot.display_point_to_anchor(
8209 DisplayPoint::new(phantom_breakpoint.display_row, 0),
8210 Bias::Right,
8211 );
8212 let breakpoint = Breakpoint::new_standard();
8213 phantom_breakpoint.collides_with_existing_breakpoint = false;
8214 (position, breakpoint, None)
8215 });
8216 }
8217 });
8218
8219 let mut expand_toggles =
8220 window.with_element_namespace("expand_toggles", |window| {
8221 self.layout_expand_toggles(
8222 &gutter_hitbox,
8223 gutter_dimensions,
8224 em_width,
8225 line_height,
8226 scroll_position,
8227 &row_infos,
8228 window,
8229 cx,
8230 )
8231 });
8232
8233 let mut crease_toggles =
8234 window.with_element_namespace("crease_toggles", |window| {
8235 self.layout_crease_toggles(
8236 start_row..end_row,
8237 &row_infos,
8238 &active_rows,
8239 &snapshot,
8240 window,
8241 cx,
8242 )
8243 });
8244 let crease_trailers =
8245 window.with_element_namespace("crease_trailers", |window| {
8246 self.layout_crease_trailers(
8247 row_infos.iter().copied(),
8248 &snapshot,
8249 window,
8250 cx,
8251 )
8252 });
8253
8254 let display_hunks = self.layout_gutter_diff_hunks(
8255 line_height,
8256 &gutter_hitbox,
8257 start_row..end_row,
8258 &snapshot,
8259 window,
8260 cx,
8261 );
8262
8263 let mut line_layouts = Self::layout_lines(
8264 start_row..end_row,
8265 &snapshot,
8266 &self.style,
8267 editor_width,
8268 is_row_soft_wrapped,
8269 window,
8270 cx,
8271 );
8272 let new_fold_widths = line_layouts
8273 .iter()
8274 .flat_map(|layout| &layout.fragments)
8275 .filter_map(|fragment| {
8276 if let LineFragment::Element { id, size, .. } = fragment {
8277 Some((*id, size.width))
8278 } else {
8279 None
8280 }
8281 });
8282 if self.editor.update(cx, |editor, cx| {
8283 editor.update_fold_widths(new_fold_widths, cx)
8284 }) {
8285 // If the fold widths have changed, we need to prepaint
8286 // the element again to account for any changes in
8287 // wrapping.
8288 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
8289 }
8290
8291 let longest_line_blame_width = self
8292 .editor
8293 .update(cx, |editor, cx| {
8294 if !editor.show_git_blame_inline {
8295 return None;
8296 }
8297 let blame = editor.blame.as_ref()?;
8298 let blame_entry = blame
8299 .update(cx, |blame, cx| {
8300 let row_infos =
8301 snapshot.row_infos(snapshot.longest_row()).next()?;
8302 blame.blame_for_rows(&[row_infos], cx).next()
8303 })
8304 .flatten()?;
8305 let mut element = render_inline_blame_entry(blame_entry, &style, cx)?;
8306 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
8307 Some(
8308 element
8309 .layout_as_root(AvailableSpace::min_size(), window, cx)
8310 .width
8311 + inline_blame_padding,
8312 )
8313 })
8314 .unwrap_or(Pixels::ZERO);
8315
8316 let longest_line_width = layout_line(
8317 snapshot.longest_row(),
8318 &snapshot,
8319 &style,
8320 editor_width,
8321 is_row_soft_wrapped,
8322 window,
8323 cx,
8324 )
8325 .width;
8326
8327 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
8328 text_hitbox.bounds,
8329 glyph_grid_cell,
8330 size(longest_line_width, max_row.as_f32() * line_height),
8331 longest_line_blame_width,
8332 editor_width,
8333 EditorSettings::get_global(cx),
8334 );
8335
8336 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
8337
8338 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
8339 snapshot.sticky_header_excerpt(scroll_position.y)
8340 } else {
8341 None
8342 };
8343 let sticky_header_excerpt_id =
8344 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
8345
8346 let blocks = window.with_element_namespace("blocks", |window| {
8347 self.render_blocks(
8348 start_row..end_row,
8349 &snapshot,
8350 &hitbox,
8351 &text_hitbox,
8352 editor_width,
8353 &mut scroll_width,
8354 &editor_margins,
8355 em_width,
8356 gutter_dimensions.full_width(),
8357 line_height,
8358 &mut line_layouts,
8359 &local_selections,
8360 &selected_buffer_ids,
8361 is_row_soft_wrapped,
8362 sticky_header_excerpt_id,
8363 window,
8364 cx,
8365 )
8366 });
8367 let (mut blocks, row_block_types) = match blocks {
8368 Ok(blocks) => blocks,
8369 Err(resized_blocks) => {
8370 self.editor.update(cx, |editor, cx| {
8371 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
8372 });
8373 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
8374 }
8375 };
8376
8377 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
8378 window.with_element_namespace("blocks", |window| {
8379 self.layout_sticky_buffer_header(
8380 sticky_header_excerpt,
8381 scroll_position.y,
8382 line_height,
8383 right_margin,
8384 &snapshot,
8385 &hitbox,
8386 &selected_buffer_ids,
8387 &blocks,
8388 window,
8389 cx,
8390 )
8391 })
8392 });
8393
8394 let start_buffer_row =
8395 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
8396 let end_buffer_row =
8397 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
8398
8399 let scroll_max = point(
8400 ((scroll_width - editor_content_width) / em_advance).max(0.0),
8401 max_scroll_top,
8402 );
8403
8404 self.editor.update(cx, |editor, cx| {
8405 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
8406
8407 let autoscrolled = if autoscroll_horizontally {
8408 editor.autoscroll_horizontally(
8409 start_row,
8410 editor_content_width,
8411 scroll_width,
8412 em_advance,
8413 &line_layouts,
8414 cx,
8415 )
8416 } else {
8417 false
8418 };
8419
8420 if clamped || autoscrolled {
8421 snapshot = editor.snapshot(window, cx);
8422 scroll_position = snapshot.scroll_position();
8423 }
8424 });
8425
8426 let scroll_pixel_position = point(
8427 scroll_position.x * em_advance,
8428 scroll_position.y * line_height,
8429 );
8430 let indent_guides = self.layout_indent_guides(
8431 content_origin,
8432 text_hitbox.origin,
8433 start_buffer_row..end_buffer_row,
8434 scroll_pixel_position,
8435 line_height,
8436 &snapshot,
8437 window,
8438 cx,
8439 );
8440
8441 let crease_trailers =
8442 window.with_element_namespace("crease_trailers", |window| {
8443 self.prepaint_crease_trailers(
8444 crease_trailers,
8445 &line_layouts,
8446 line_height,
8447 content_origin,
8448 scroll_pixel_position,
8449 em_width,
8450 window,
8451 cx,
8452 )
8453 });
8454
8455 let (inline_completion_popover, inline_completion_popover_origin) = self
8456 .editor
8457 .update(cx, |editor, cx| {
8458 editor.render_edit_prediction_popover(
8459 &text_hitbox.bounds,
8460 content_origin,
8461 right_margin,
8462 &snapshot,
8463 start_row..end_row,
8464 scroll_position.y,
8465 scroll_position.y + height_in_lines,
8466 &line_layouts,
8467 line_height,
8468 scroll_pixel_position,
8469 newest_selection_head,
8470 editor_width,
8471 &style,
8472 window,
8473 cx,
8474 )
8475 })
8476 .unzip();
8477
8478 let mut inline_diagnostics = self.layout_inline_diagnostics(
8479 &line_layouts,
8480 &crease_trailers,
8481 &row_block_types,
8482 content_origin,
8483 scroll_pixel_position,
8484 inline_completion_popover_origin,
8485 start_row,
8486 end_row,
8487 line_height,
8488 em_width,
8489 &style,
8490 window,
8491 cx,
8492 );
8493
8494 let mut inline_blame_layout = None;
8495 let mut inline_code_actions = None;
8496 if let Some(newest_selection_head) = newest_selection_head {
8497 let display_row = newest_selection_head.row();
8498 if (start_row..end_row).contains(&display_row)
8499 && !row_block_types.contains_key(&display_row)
8500 {
8501 inline_code_actions = self.layout_inline_code_actions(
8502 newest_selection_head,
8503 content_origin,
8504 scroll_pixel_position,
8505 line_height,
8506 &snapshot,
8507 window,
8508 cx,
8509 );
8510
8511 let line_ix = display_row.minus(start_row) as usize;
8512 let row_info = &row_infos[line_ix];
8513 let line_layout = &line_layouts[line_ix];
8514 let crease_trailer_layout = crease_trailers[line_ix].as_ref();
8515
8516 if let Some(layout) = self.layout_inline_blame(
8517 display_row,
8518 row_info,
8519 line_layout,
8520 crease_trailer_layout,
8521 em_width,
8522 content_origin,
8523 scroll_pixel_position,
8524 line_height,
8525 &text_hitbox,
8526 window,
8527 cx,
8528 ) {
8529 inline_blame_layout = Some(layout);
8530 // Blame overrides inline diagnostics
8531 inline_diagnostics.remove(&display_row);
8532 }
8533 }
8534 }
8535
8536 let blamed_display_rows = self.layout_blame_entries(
8537 &row_infos,
8538 em_width,
8539 scroll_position,
8540 line_height,
8541 &gutter_hitbox,
8542 gutter_dimensions.git_blame_entries_width,
8543 window,
8544 cx,
8545 );
8546
8547 self.editor.update(cx, |editor, cx| {
8548 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
8549
8550 let autoscrolled = if autoscroll_horizontally {
8551 editor.autoscroll_horizontally(
8552 start_row,
8553 editor_content_width,
8554 scroll_width,
8555 em_width,
8556 &line_layouts,
8557 cx,
8558 )
8559 } else {
8560 false
8561 };
8562
8563 if clamped || autoscrolled {
8564 snapshot = editor.snapshot(window, cx);
8565 scroll_position = snapshot.scroll_position();
8566 }
8567 });
8568
8569 let line_elements = self.prepaint_lines(
8570 start_row,
8571 &mut line_layouts,
8572 line_height,
8573 scroll_pixel_position,
8574 content_origin,
8575 window,
8576 cx,
8577 );
8578
8579 window.with_element_namespace("blocks", |window| {
8580 self.layout_blocks(
8581 &mut blocks,
8582 &hitbox,
8583 line_height,
8584 scroll_pixel_position,
8585 window,
8586 cx,
8587 );
8588 });
8589
8590 let cursors = self.collect_cursors(&snapshot, cx);
8591 let visible_row_range = start_row..end_row;
8592 let non_visible_cursors = cursors
8593 .iter()
8594 .any(|c| !visible_row_range.contains(&c.0.row()));
8595
8596 let visible_cursors = self.layout_visible_cursors(
8597 &snapshot,
8598 &selections,
8599 &row_block_types,
8600 start_row..end_row,
8601 &line_layouts,
8602 &text_hitbox,
8603 content_origin,
8604 scroll_position,
8605 scroll_pixel_position,
8606 line_height,
8607 em_width,
8608 em_advance,
8609 autoscroll_containing_element,
8610 window,
8611 cx,
8612 );
8613
8614 let scrollbars_layout = self.layout_scrollbars(
8615 &snapshot,
8616 &scrollbar_layout_information,
8617 content_offset,
8618 scroll_position,
8619 non_visible_cursors,
8620 right_margin,
8621 editor_width,
8622 window,
8623 cx,
8624 );
8625
8626 let gutter_settings = EditorSettings::get_global(cx).gutter;
8627
8628 let context_menu_layout =
8629 if let Some(newest_selection_head) = newest_selection_head {
8630 let newest_selection_point =
8631 newest_selection_head.to_point(&snapshot.display_snapshot);
8632 if (start_row..end_row).contains(&newest_selection_head.row()) {
8633 self.layout_cursor_popovers(
8634 line_height,
8635 &text_hitbox,
8636 content_origin,
8637 right_margin,
8638 start_row,
8639 scroll_pixel_position,
8640 &line_layouts,
8641 newest_selection_head,
8642 newest_selection_point,
8643 &style,
8644 window,
8645 cx,
8646 )
8647 } else {
8648 None
8649 }
8650 } else {
8651 None
8652 };
8653
8654 self.layout_gutter_menu(
8655 line_height,
8656 &text_hitbox,
8657 content_origin,
8658 right_margin,
8659 scroll_pixel_position,
8660 gutter_dimensions.width - gutter_dimensions.left_padding,
8661 window,
8662 cx,
8663 );
8664
8665 let test_indicators = if gutter_settings.runnables {
8666 self.layout_run_indicators(
8667 line_height,
8668 start_row..end_row,
8669 &row_infos,
8670 scroll_pixel_position,
8671 &gutter_dimensions,
8672 &gutter_hitbox,
8673 &display_hunks,
8674 &snapshot,
8675 &mut breakpoint_rows,
8676 window,
8677 cx,
8678 )
8679 } else {
8680 Vec::new()
8681 };
8682
8683 let show_breakpoints = snapshot
8684 .show_breakpoints
8685 .unwrap_or(gutter_settings.breakpoints);
8686 let breakpoints = self.layout_breakpoints(
8687 line_height,
8688 start_row..end_row,
8689 scroll_pixel_position,
8690 &gutter_dimensions,
8691 &gutter_hitbox,
8692 &display_hunks,
8693 &snapshot,
8694 breakpoint_rows,
8695 &row_infos,
8696 window,
8697 cx,
8698 );
8699
8700 self.layout_signature_help(
8701 &hitbox,
8702 content_origin,
8703 scroll_pixel_position,
8704 newest_selection_head,
8705 start_row,
8706 &line_layouts,
8707 line_height,
8708 em_width,
8709 context_menu_layout,
8710 window,
8711 cx,
8712 );
8713
8714 if !cx.has_active_drag() {
8715 self.layout_hover_popovers(
8716 &snapshot,
8717 &hitbox,
8718 start_row..end_row,
8719 content_origin,
8720 scroll_pixel_position,
8721 &line_layouts,
8722 line_height,
8723 em_width,
8724 context_menu_layout,
8725 window,
8726 cx,
8727 );
8728 }
8729
8730 let mouse_context_menu = self.layout_mouse_context_menu(
8731 &snapshot,
8732 start_row..end_row,
8733 content_origin,
8734 window,
8735 cx,
8736 );
8737
8738 window.with_element_namespace("crease_toggles", |window| {
8739 self.prepaint_crease_toggles(
8740 &mut crease_toggles,
8741 line_height,
8742 &gutter_dimensions,
8743 gutter_settings,
8744 scroll_pixel_position,
8745 &gutter_hitbox,
8746 window,
8747 cx,
8748 )
8749 });
8750
8751 window.with_element_namespace("expand_toggles", |window| {
8752 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
8753 });
8754
8755 let minimap = window.with_element_namespace("minimap", |window| {
8756 self.layout_minimap(
8757 &snapshot,
8758 minimap_width,
8759 scroll_position,
8760 &scrollbar_layout_information,
8761 scrollbars_layout.as_ref(),
8762 window,
8763 cx,
8764 )
8765 });
8766
8767 let invisible_symbol_font_size = font_size / 2.;
8768 let tab_invisible = window.text_system().shape_line(
8769 "→".into(),
8770 invisible_symbol_font_size,
8771 &[TextRun {
8772 len: "→".len(),
8773 font: self.style.text.font(),
8774 color: cx.theme().colors().editor_invisible,
8775 background_color: None,
8776 underline: None,
8777 strikethrough: None,
8778 }],
8779 );
8780 let space_invisible = window.text_system().shape_line(
8781 "•".into(),
8782 invisible_symbol_font_size,
8783 &[TextRun {
8784 len: "•".len(),
8785 font: self.style.text.font(),
8786 color: cx.theme().colors().editor_invisible,
8787 background_color: None,
8788 underline: None,
8789 strikethrough: None,
8790 }],
8791 );
8792
8793 let mode = snapshot.mode.clone();
8794
8795 let (diff_hunk_controls, diff_hunk_control_bounds) = if is_read_only {
8796 (vec![], vec![])
8797 } else {
8798 self.layout_diff_hunk_controls(
8799 start_row..end_row,
8800 &row_infos,
8801 &text_hitbox,
8802 newest_selection_head,
8803 line_height,
8804 right_margin,
8805 scroll_pixel_position,
8806 &display_hunks,
8807 &highlighted_rows,
8808 self.editor.clone(),
8809 window,
8810 cx,
8811 )
8812 };
8813
8814 let position_map = Rc::new(PositionMap {
8815 size: bounds.size,
8816 visible_row_range,
8817 scroll_pixel_position,
8818 scroll_max,
8819 line_layouts,
8820 line_height,
8821 em_width,
8822 em_advance,
8823 snapshot,
8824 gutter_hitbox: gutter_hitbox.clone(),
8825 text_hitbox: text_hitbox.clone(),
8826 inline_blame_bounds: inline_blame_layout
8827 .as_ref()
8828 .map(|layout| (layout.bounds, layout.entry.clone())),
8829 display_hunks: display_hunks.clone(),
8830 diff_hunk_control_bounds: diff_hunk_control_bounds.clone(),
8831 });
8832
8833 self.editor.update(cx, |editor, _| {
8834 editor.last_position_map = Some(position_map.clone())
8835 });
8836
8837 EditorLayout {
8838 mode,
8839 position_map,
8840 visible_display_row_range: start_row..end_row,
8841 wrap_guides,
8842 indent_guides,
8843 hitbox,
8844 gutter_hitbox,
8845 display_hunks,
8846 content_origin,
8847 scrollbars_layout,
8848 minimap,
8849 active_rows,
8850 highlighted_rows,
8851 highlighted_ranges,
8852 highlighted_gutter_ranges,
8853 redacted_ranges,
8854 document_colors,
8855 line_elements,
8856 line_numbers,
8857 blamed_display_rows,
8858 inline_diagnostics,
8859 inline_blame_layout,
8860 inline_code_actions,
8861 blocks,
8862 cursors,
8863 visible_cursors,
8864 selections,
8865 inline_completion_popover,
8866 diff_hunk_controls,
8867 mouse_context_menu,
8868 test_indicators,
8869 breakpoints,
8870 crease_toggles,
8871 crease_trailers,
8872 tab_invisible,
8873 space_invisible,
8874 sticky_buffer_header,
8875 expand_toggles,
8876 }
8877 })
8878 })
8879 })
8880 }
8881
8882 fn paint(
8883 &mut self,
8884 _: Option<&GlobalElementId>,
8885 _inspector_id: Option<&gpui::InspectorElementId>,
8886 bounds: Bounds<gpui::Pixels>,
8887 _: &mut Self::RequestLayoutState,
8888 layout: &mut Self::PrepaintState,
8889 window: &mut Window,
8890 cx: &mut App,
8891 ) {
8892 let focus_handle = self.editor.focus_handle(cx);
8893 let key_context = self
8894 .editor
8895 .update(cx, |editor, cx| editor.key_context(window, cx));
8896
8897 window.set_key_context(key_context);
8898 window.handle_input(
8899 &focus_handle,
8900 ElementInputHandler::new(bounds, self.editor.clone()),
8901 cx,
8902 );
8903 self.register_actions(window, cx);
8904 self.register_key_listeners(window, cx, layout);
8905
8906 let text_style = TextStyleRefinement {
8907 font_size: Some(self.style.text.font_size),
8908 line_height: Some(self.style.text.line_height),
8909 ..Default::default()
8910 };
8911 let rem_size = self.rem_size(cx);
8912 window.with_rem_size(rem_size, |window| {
8913 window.with_text_style(Some(text_style), |window| {
8914 window.with_content_mask(Some(ContentMask { bounds }), |window| {
8915 self.paint_mouse_listeners(layout, window, cx);
8916 self.paint_background(layout, window, cx);
8917 self.paint_indent_guides(layout, window, cx);
8918
8919 if layout.gutter_hitbox.size.width > Pixels::ZERO {
8920 self.paint_blamed_display_rows(layout, window, cx);
8921 self.paint_line_numbers(layout, window, cx);
8922 }
8923
8924 self.paint_text(layout, window, cx);
8925
8926 if layout.gutter_hitbox.size.width > Pixels::ZERO {
8927 self.paint_gutter_highlights(layout, window, cx);
8928 self.paint_gutter_indicators(layout, window, cx);
8929 }
8930
8931 if !layout.blocks.is_empty() {
8932 window.with_element_namespace("blocks", |window| {
8933 self.paint_blocks(layout, window, cx);
8934 });
8935 }
8936
8937 window.with_element_namespace("blocks", |window| {
8938 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
8939 sticky_header.paint(window, cx)
8940 }
8941 });
8942
8943 self.paint_minimap(layout, window, cx);
8944 self.paint_scrollbars(layout, window, cx);
8945 self.paint_inline_completion_popover(layout, window, cx);
8946 self.paint_mouse_context_menu(layout, window, cx);
8947 });
8948 })
8949 })
8950 }
8951}
8952
8953pub(super) fn gutter_bounds(
8954 editor_bounds: Bounds<Pixels>,
8955 gutter_dimensions: GutterDimensions,
8956) -> Bounds<Pixels> {
8957 Bounds {
8958 origin: editor_bounds.origin,
8959 size: size(gutter_dimensions.width, editor_bounds.size.height),
8960 }
8961}
8962
8963#[derive(Clone, Copy)]
8964struct ContextMenuLayout {
8965 y_flipped: bool,
8966 bounds: Bounds<Pixels>,
8967}
8968
8969/// Holds information required for layouting the editor scrollbars.
8970struct ScrollbarLayoutInformation {
8971 /// The bounds of the editor area (excluding the content offset).
8972 editor_bounds: Bounds<Pixels>,
8973 /// The available range to scroll within the document.
8974 scroll_range: Size<Pixels>,
8975 /// The space available for one glyph in the editor.
8976 glyph_grid_cell: Size<Pixels>,
8977}
8978
8979impl ScrollbarLayoutInformation {
8980 pub fn new(
8981 editor_bounds: Bounds<Pixels>,
8982 glyph_grid_cell: Size<Pixels>,
8983 document_size: Size<Pixels>,
8984 longest_line_blame_width: Pixels,
8985 editor_width: Pixels,
8986 settings: &EditorSettings,
8987 ) -> Self {
8988 let vertical_overscroll = match settings.scroll_beyond_last_line {
8989 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
8990 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
8991 ScrollBeyondLastLine::VerticalScrollMargin => {
8992 (1.0 + settings.vertical_scroll_margin) * glyph_grid_cell.height
8993 }
8994 };
8995
8996 let right_margin = if document_size.width + longest_line_blame_width >= editor_width {
8997 glyph_grid_cell.width
8998 } else {
8999 px(0.0)
9000 };
9001
9002 let overscroll = size(right_margin + longest_line_blame_width, vertical_overscroll);
9003
9004 let scroll_range = document_size + overscroll;
9005
9006 ScrollbarLayoutInformation {
9007 editor_bounds,
9008 scroll_range,
9009 glyph_grid_cell,
9010 }
9011 }
9012}
9013
9014impl IntoElement for EditorElement {
9015 type Element = Self;
9016
9017 fn into_element(self) -> Self::Element {
9018 self
9019 }
9020}
9021
9022pub struct EditorLayout {
9023 position_map: Rc<PositionMap>,
9024 hitbox: Hitbox,
9025 gutter_hitbox: Hitbox,
9026 content_origin: gpui::Point<Pixels>,
9027 scrollbars_layout: Option<EditorScrollbars>,
9028 minimap: Option<MinimapLayout>,
9029 mode: EditorMode,
9030 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
9031 indent_guides: Option<Vec<IndentGuideLayout>>,
9032 visible_display_row_range: Range<DisplayRow>,
9033 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
9034 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
9035 line_elements: SmallVec<[AnyElement; 1]>,
9036 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
9037 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
9038 blamed_display_rows: Option<Vec<AnyElement>>,
9039 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
9040 inline_blame_layout: Option<InlineBlameLayout>,
9041 inline_code_actions: Option<AnyElement>,
9042 blocks: Vec<BlockLayout>,
9043 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
9044 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
9045 redacted_ranges: Vec<Range<DisplayPoint>>,
9046 cursors: Vec<(DisplayPoint, Hsla)>,
9047 visible_cursors: Vec<CursorLayout>,
9048 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
9049 test_indicators: Vec<AnyElement>,
9050 breakpoints: Vec<AnyElement>,
9051 crease_toggles: Vec<Option<AnyElement>>,
9052 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
9053 diff_hunk_controls: Vec<AnyElement>,
9054 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
9055 inline_completion_popover: Option<AnyElement>,
9056 mouse_context_menu: Option<AnyElement>,
9057 tab_invisible: ShapedLine,
9058 space_invisible: ShapedLine,
9059 sticky_buffer_header: Option<AnyElement>,
9060 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
9061}
9062
9063impl EditorLayout {
9064 fn line_end_overshoot(&self) -> Pixels {
9065 0.15 * self.position_map.line_height
9066 }
9067}
9068
9069struct LineNumberLayout {
9070 shaped_line: ShapedLine,
9071 hitbox: Option<Hitbox>,
9072}
9073
9074struct ColoredRange<T> {
9075 start: T,
9076 end: T,
9077 color: Hsla,
9078}
9079
9080impl Along for ScrollbarAxes {
9081 type Unit = bool;
9082
9083 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
9084 match axis {
9085 ScrollbarAxis::Horizontal => self.horizontal,
9086 ScrollbarAxis::Vertical => self.vertical,
9087 }
9088 }
9089
9090 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
9091 match axis {
9092 ScrollbarAxis::Horizontal => ScrollbarAxes {
9093 horizontal: f(self.horizontal),
9094 vertical: self.vertical,
9095 },
9096 ScrollbarAxis::Vertical => ScrollbarAxes {
9097 horizontal: self.horizontal,
9098 vertical: f(self.vertical),
9099 },
9100 }
9101 }
9102}
9103
9104#[derive(Clone)]
9105struct EditorScrollbars {
9106 pub vertical: Option<ScrollbarLayout>,
9107 pub horizontal: Option<ScrollbarLayout>,
9108 pub visible: bool,
9109}
9110
9111impl EditorScrollbars {
9112 pub fn from_scrollbar_axes(
9113 settings_visibility: ScrollbarAxes,
9114 layout_information: &ScrollbarLayoutInformation,
9115 content_offset: gpui::Point<Pixels>,
9116 scroll_position: gpui::Point<f32>,
9117 scrollbar_width: Pixels,
9118 right_margin: Pixels,
9119 editor_width: Pixels,
9120 show_scrollbars: bool,
9121 scrollbar_state: Option<&ActiveScrollbarState>,
9122 window: &mut Window,
9123 ) -> Self {
9124 let ScrollbarLayoutInformation {
9125 editor_bounds,
9126 scroll_range,
9127 glyph_grid_cell,
9128 } = layout_information;
9129
9130 let viewport_size = size(editor_width, editor_bounds.size.height);
9131
9132 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
9133 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
9134 Corner::BottomLeft,
9135 editor_bounds.bottom_left(),
9136 size(
9137 // The horizontal viewport size differs from the space available for the
9138 // horizontal scrollbar, so we have to manually stich it together here.
9139 editor_bounds.size.width - right_margin,
9140 scrollbar_width,
9141 ),
9142 ),
9143 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
9144 Corner::TopRight,
9145 editor_bounds.top_right(),
9146 size(scrollbar_width, viewport_size.height),
9147 ),
9148 };
9149
9150 let mut create_scrollbar_layout = |axis| {
9151 settings_visibility
9152 .along(axis)
9153 .then(|| {
9154 (
9155 viewport_size.along(axis) - content_offset.along(axis),
9156 scroll_range.along(axis),
9157 )
9158 })
9159 .filter(|(viewport_size, scroll_range)| {
9160 // The scrollbar should only be rendered if the content does
9161 // not entirely fit into the editor
9162 // However, this only applies to the horizontal scrollbar, as information about the
9163 // vertical scrollbar layout is always needed for scrollbar diagnostics.
9164 axis != ScrollbarAxis::Horizontal || viewport_size < scroll_range
9165 })
9166 .map(|(viewport_size, scroll_range)| {
9167 ScrollbarLayout::new(
9168 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
9169 viewport_size,
9170 scroll_range,
9171 glyph_grid_cell.along(axis),
9172 content_offset.along(axis),
9173 scroll_position.along(axis),
9174 show_scrollbars,
9175 axis,
9176 )
9177 .with_thumb_state(
9178 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
9179 )
9180 })
9181 };
9182
9183 Self {
9184 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
9185 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
9186 visible: show_scrollbars,
9187 }
9188 }
9189
9190 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
9191 [
9192 (&self.vertical, ScrollbarAxis::Vertical),
9193 (&self.horizontal, ScrollbarAxis::Horizontal),
9194 ]
9195 .into_iter()
9196 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
9197 }
9198
9199 /// Returns the currently hovered scrollbar axis, if any.
9200 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
9201 self.iter_scrollbars()
9202 .find(|s| s.0.hitbox.is_hovered(window))
9203 }
9204}
9205
9206#[derive(Clone)]
9207struct ScrollbarLayout {
9208 hitbox: Hitbox,
9209 visible_range: Range<f32>,
9210 text_unit_size: Pixels,
9211 thumb_bounds: Option<Bounds<Pixels>>,
9212 thumb_state: ScrollbarThumbState,
9213}
9214
9215impl ScrollbarLayout {
9216 const BORDER_WIDTH: Pixels = px(1.0);
9217 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
9218 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
9219 const MIN_THUMB_SIZE: Pixels = px(25.0);
9220
9221 fn new(
9222 scrollbar_track_hitbox: Hitbox,
9223 viewport_size: Pixels,
9224 scroll_range: Pixels,
9225 glyph_space: Pixels,
9226 content_offset: Pixels,
9227 scroll_position: f32,
9228 show_thumb: bool,
9229 axis: ScrollbarAxis,
9230 ) -> Self {
9231 let track_bounds = scrollbar_track_hitbox.bounds;
9232 // The length of the track available to the scrollbar thumb. We deliberately
9233 // exclude the content size here so that the thumb aligns with the content.
9234 let track_length = track_bounds.size.along(axis) - content_offset;
9235
9236 Self::new_with_hitbox_and_track_length(
9237 scrollbar_track_hitbox,
9238 track_length,
9239 viewport_size,
9240 scroll_range,
9241 glyph_space,
9242 content_offset,
9243 scroll_position,
9244 show_thumb,
9245 axis,
9246 )
9247 }
9248
9249 fn for_minimap(
9250 minimap_track_hitbox: Hitbox,
9251 visible_lines: f32,
9252 total_editor_lines: f32,
9253 minimap_line_height: Pixels,
9254 scroll_position: f32,
9255 minimap_scroll_top: f32,
9256 show_thumb: bool,
9257 ) -> Self {
9258 // The scrollbar thumb size is calculated as
9259 // (visible_content/total_content) × scrollbar_track_length.
9260 //
9261 // For the minimap's thumb layout, we leverage this by setting the
9262 // scrollbar track length to the entire document size (using minimap line
9263 // height). This creates a thumb that exactly represents the editor
9264 // viewport scaled to minimap proportions.
9265 //
9266 // We adjust the thumb position relative to `minimap_scroll_top` to
9267 // accommodate for the deliberately oversized track.
9268 //
9269 // This approach ensures that the minimap thumb accurately reflects the
9270 // editor's current scroll position whilst nicely synchronizing the minimap
9271 // thumb and scrollbar thumb.
9272 let scroll_range = total_editor_lines * minimap_line_height;
9273 let viewport_size = visible_lines * minimap_line_height;
9274
9275 let track_top_offset = -minimap_scroll_top * minimap_line_height;
9276
9277 Self::new_with_hitbox_and_track_length(
9278 minimap_track_hitbox,
9279 scroll_range,
9280 viewport_size,
9281 scroll_range,
9282 minimap_line_height,
9283 track_top_offset,
9284 scroll_position,
9285 show_thumb,
9286 ScrollbarAxis::Vertical,
9287 )
9288 }
9289
9290 fn new_with_hitbox_and_track_length(
9291 scrollbar_track_hitbox: Hitbox,
9292 track_length: Pixels,
9293 viewport_size: Pixels,
9294 scroll_range: Pixels,
9295 glyph_space: Pixels,
9296 content_offset: Pixels,
9297 scroll_position: f32,
9298 show_thumb: bool,
9299 axis: ScrollbarAxis,
9300 ) -> Self {
9301 let text_units_per_page = viewport_size / glyph_space;
9302 let visible_range = scroll_position..scroll_position + text_units_per_page;
9303 let total_text_units = scroll_range / glyph_space;
9304
9305 let thumb_percentage = text_units_per_page / total_text_units;
9306 let thumb_size = (track_length * thumb_percentage)
9307 .max(ScrollbarLayout::MIN_THUMB_SIZE)
9308 .min(track_length);
9309
9310 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
9311
9312 let content_larger_than_viewport = text_unit_divisor > 0.;
9313
9314 let text_unit_size = if content_larger_than_viewport {
9315 (track_length - thumb_size) / text_unit_divisor
9316 } else {
9317 glyph_space
9318 };
9319
9320 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
9321 Self::thumb_bounds(
9322 &scrollbar_track_hitbox,
9323 content_offset,
9324 visible_range.start,
9325 text_unit_size,
9326 thumb_size,
9327 axis,
9328 )
9329 });
9330
9331 ScrollbarLayout {
9332 hitbox: scrollbar_track_hitbox,
9333 visible_range,
9334 text_unit_size,
9335 thumb_bounds,
9336 thumb_state: Default::default(),
9337 }
9338 }
9339
9340 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
9341 if let Some(thumb_state) = thumb_state {
9342 Self {
9343 thumb_state,
9344 ..self
9345 }
9346 } else {
9347 self
9348 }
9349 }
9350
9351 fn thumb_bounds(
9352 scrollbar_track: &Hitbox,
9353 content_offset: Pixels,
9354 visible_range_start: f32,
9355 text_unit_size: Pixels,
9356 thumb_size: Pixels,
9357 axis: ScrollbarAxis,
9358 ) -> Bounds<Pixels> {
9359 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
9360 origin + content_offset + visible_range_start * text_unit_size
9361 });
9362 Bounds::new(
9363 thumb_origin,
9364 scrollbar_track.size.apply_along(axis, |_| thumb_size),
9365 )
9366 }
9367
9368 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
9369 self.thumb_bounds
9370 .is_some_and(|bounds| bounds.contains(position))
9371 }
9372
9373 fn marker_quads_for_ranges(
9374 &self,
9375 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
9376 column: Option<usize>,
9377 ) -> Vec<PaintQuad> {
9378 struct MinMax {
9379 min: Pixels,
9380 max: Pixels,
9381 }
9382 let (x_range, height_limit) = if let Some(column) = column {
9383 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
9384 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
9385 let end = start + column_width;
9386 (
9387 Range { start, end },
9388 MinMax {
9389 min: Self::MIN_MARKER_HEIGHT,
9390 max: px(f32::MAX),
9391 },
9392 )
9393 } else {
9394 (
9395 Range {
9396 start: Self::BORDER_WIDTH,
9397 end: self.hitbox.size.width,
9398 },
9399 MinMax {
9400 min: Self::LINE_MARKER_HEIGHT,
9401 max: Self::LINE_MARKER_HEIGHT,
9402 },
9403 )
9404 };
9405
9406 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
9407 let mut pixel_ranges = row_ranges
9408 .into_iter()
9409 .map(|range| {
9410 let start_y = row_to_y(range.start);
9411 let end_y = row_to_y(range.end)
9412 + self
9413 .text_unit_size
9414 .max(height_limit.min)
9415 .min(height_limit.max);
9416 ColoredRange {
9417 start: start_y,
9418 end: end_y,
9419 color: range.color,
9420 }
9421 })
9422 .peekable();
9423
9424 let mut quads = Vec::new();
9425 while let Some(mut pixel_range) = pixel_ranges.next() {
9426 while let Some(next_pixel_range) = pixel_ranges.peek() {
9427 if pixel_range.end >= next_pixel_range.start - px(1.0)
9428 && pixel_range.color == next_pixel_range.color
9429 {
9430 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
9431 pixel_ranges.next();
9432 } else {
9433 break;
9434 }
9435 }
9436
9437 let bounds = Bounds::from_corners(
9438 point(x_range.start, pixel_range.start),
9439 point(x_range.end, pixel_range.end),
9440 );
9441 quads.push(quad(
9442 bounds,
9443 Corners::default(),
9444 pixel_range.color,
9445 Edges::default(),
9446 Hsla::transparent_black(),
9447 BorderStyle::default(),
9448 ));
9449 }
9450
9451 quads
9452 }
9453}
9454
9455struct MinimapLayout {
9456 pub minimap: AnyElement,
9457 pub thumb_layout: ScrollbarLayout,
9458 pub minimap_scroll_top: f32,
9459 pub minimap_line_height: Pixels,
9460 pub thumb_border_style: MinimapThumbBorder,
9461 pub max_scroll_top: f32,
9462}
9463
9464impl MinimapLayout {
9465 const MINIMAP_WIDTH: Pixels = px(100.);
9466 /// Calculates the scroll top offset the minimap editor has to have based on the
9467 /// current scroll progress.
9468 fn calculate_minimap_top_offset(
9469 document_lines: f32,
9470 visible_editor_lines: f32,
9471 visible_minimap_lines: f32,
9472 scroll_position: f32,
9473 ) -> f32 {
9474 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
9475 if non_visible_document_lines == 0. {
9476 0.
9477 } else {
9478 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
9479 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
9480 }
9481 }
9482}
9483
9484struct CreaseTrailerLayout {
9485 element: AnyElement,
9486 bounds: Bounds<Pixels>,
9487}
9488
9489pub(crate) struct PositionMap {
9490 pub size: Size<Pixels>,
9491 pub line_height: Pixels,
9492 pub scroll_pixel_position: gpui::Point<Pixels>,
9493 pub scroll_max: gpui::Point<f32>,
9494 pub em_width: Pixels,
9495 pub em_advance: Pixels,
9496 pub visible_row_range: Range<DisplayRow>,
9497 pub line_layouts: Vec<LineWithInvisibles>,
9498 pub snapshot: EditorSnapshot,
9499 pub text_hitbox: Hitbox,
9500 pub gutter_hitbox: Hitbox,
9501 pub inline_blame_bounds: Option<(Bounds<Pixels>, BlameEntry)>,
9502 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
9503 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
9504}
9505
9506#[derive(Debug, Copy, Clone)]
9507pub struct PointForPosition {
9508 pub previous_valid: DisplayPoint,
9509 pub next_valid: DisplayPoint,
9510 pub exact_unclipped: DisplayPoint,
9511 pub column_overshoot_after_line_end: u32,
9512}
9513
9514impl PointForPosition {
9515 pub fn as_valid(&self) -> Option<DisplayPoint> {
9516 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
9517 Some(self.previous_valid)
9518 } else {
9519 None
9520 }
9521 }
9522
9523 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
9524 let Some(valid_point) = self.as_valid() else {
9525 return false;
9526 };
9527 let range = selection.range();
9528
9529 let candidate_row = valid_point.row();
9530 let candidate_col = valid_point.column();
9531
9532 let start_row = range.start.row();
9533 let start_col = range.start.column();
9534 let end_row = range.end.row();
9535 let end_col = range.end.column();
9536
9537 if candidate_row < start_row || candidate_row > end_row {
9538 false
9539 } else if start_row == end_row {
9540 candidate_col >= start_col && candidate_col < end_col
9541 } else {
9542 if candidate_row == start_row {
9543 candidate_col >= start_col
9544 } else if candidate_row == end_row {
9545 candidate_col < end_col
9546 } else {
9547 true
9548 }
9549 }
9550 }
9551}
9552
9553impl PositionMap {
9554 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
9555 let text_bounds = self.text_hitbox.bounds;
9556 let scroll_position = self.snapshot.scroll_position();
9557 let position = position - text_bounds.origin;
9558 let y = position.y.max(px(0.)).min(self.size.height);
9559 let x = position.x + (scroll_position.x * self.em_advance);
9560 let row = ((y / self.line_height) + scroll_position.y) as u32;
9561
9562 let (column, x_overshoot_after_line_end) = if let Some(line) = self
9563 .line_layouts
9564 .get(row as usize - scroll_position.y as usize)
9565 {
9566 if let Some(ix) = line.index_for_x(x) {
9567 (ix as u32, px(0.))
9568 } else {
9569 (line.len as u32, px(0.).max(x - line.width))
9570 }
9571 } else {
9572 (0, x)
9573 };
9574
9575 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
9576 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
9577 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
9578
9579 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
9580 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
9581 PointForPosition {
9582 previous_valid,
9583 next_valid,
9584 exact_unclipped,
9585 column_overshoot_after_line_end,
9586 }
9587 }
9588}
9589
9590struct BlockLayout {
9591 id: BlockId,
9592 x_offset: Pixels,
9593 row: Option<DisplayRow>,
9594 element: AnyElement,
9595 available_space: Size<AvailableSpace>,
9596 style: BlockStyle,
9597 overlaps_gutter: bool,
9598 is_buffer_header: bool,
9599}
9600
9601pub fn layout_line(
9602 row: DisplayRow,
9603 snapshot: &EditorSnapshot,
9604 style: &EditorStyle,
9605 text_width: Pixels,
9606 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
9607 window: &mut Window,
9608 cx: &mut App,
9609) -> LineWithInvisibles {
9610 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
9611 LineWithInvisibles::from_chunks(
9612 chunks,
9613 &style,
9614 MAX_LINE_LEN,
9615 1,
9616 &snapshot.mode,
9617 text_width,
9618 is_row_soft_wrapped,
9619 window,
9620 cx,
9621 )
9622 .pop()
9623 .unwrap()
9624}
9625
9626#[derive(Debug)]
9627pub struct IndentGuideLayout {
9628 origin: gpui::Point<Pixels>,
9629 length: Pixels,
9630 single_indent_width: Pixels,
9631 depth: u32,
9632 active: bool,
9633 settings: IndentGuideSettings,
9634}
9635
9636pub struct CursorLayout {
9637 origin: gpui::Point<Pixels>,
9638 block_width: Pixels,
9639 line_height: Pixels,
9640 color: Hsla,
9641 shape: CursorShape,
9642 block_text: Option<ShapedLine>,
9643 cursor_name: Option<AnyElement>,
9644}
9645
9646#[derive(Debug)]
9647pub struct CursorName {
9648 string: SharedString,
9649 color: Hsla,
9650 is_top_row: bool,
9651}
9652
9653impl CursorLayout {
9654 pub fn new(
9655 origin: gpui::Point<Pixels>,
9656 block_width: Pixels,
9657 line_height: Pixels,
9658 color: Hsla,
9659 shape: CursorShape,
9660 block_text: Option<ShapedLine>,
9661 ) -> CursorLayout {
9662 CursorLayout {
9663 origin,
9664 block_width,
9665 line_height,
9666 color,
9667 shape,
9668 block_text,
9669 cursor_name: None,
9670 }
9671 }
9672
9673 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
9674 Bounds {
9675 origin: self.origin + origin,
9676 size: size(self.block_width, self.line_height),
9677 }
9678 }
9679
9680 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
9681 match self.shape {
9682 CursorShape::Bar => Bounds {
9683 origin: self.origin + origin,
9684 size: size(px(2.0), self.line_height),
9685 },
9686 CursorShape::Block | CursorShape::Hollow => Bounds {
9687 origin: self.origin + origin,
9688 size: size(self.block_width, self.line_height),
9689 },
9690 CursorShape::Underline => Bounds {
9691 origin: self.origin
9692 + origin
9693 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
9694 size: size(self.block_width, px(2.0)),
9695 },
9696 }
9697 }
9698
9699 pub fn layout(
9700 &mut self,
9701 origin: gpui::Point<Pixels>,
9702 cursor_name: Option<CursorName>,
9703 window: &mut Window,
9704 cx: &mut App,
9705 ) {
9706 if let Some(cursor_name) = cursor_name {
9707 let bounds = self.bounds(origin);
9708 let text_size = self.line_height / 1.5;
9709
9710 let name_origin = if cursor_name.is_top_row {
9711 point(bounds.right() - px(1.), bounds.top())
9712 } else {
9713 match self.shape {
9714 CursorShape::Bar => point(
9715 bounds.right() - px(2.),
9716 bounds.top() - text_size / 2. - px(1.),
9717 ),
9718 _ => point(
9719 bounds.right() - px(1.),
9720 bounds.top() - text_size / 2. - px(1.),
9721 ),
9722 }
9723 };
9724 let mut name_element = div()
9725 .bg(self.color)
9726 .text_size(text_size)
9727 .px_0p5()
9728 .line_height(text_size + px(2.))
9729 .text_color(cursor_name.color)
9730 .child(cursor_name.string.clone())
9731 .into_any_element();
9732
9733 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
9734
9735 self.cursor_name = Some(name_element);
9736 }
9737 }
9738
9739 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
9740 let bounds = self.bounds(origin);
9741
9742 //Draw background or border quad
9743 let cursor = if matches!(self.shape, CursorShape::Hollow) {
9744 outline(bounds, self.color, BorderStyle::Solid)
9745 } else {
9746 fill(bounds, self.color)
9747 };
9748
9749 if let Some(name) = &mut self.cursor_name {
9750 name.paint(window, cx);
9751 }
9752
9753 window.paint_quad(cursor);
9754
9755 if let Some(block_text) = &self.block_text {
9756 block_text
9757 .paint(self.origin + origin, self.line_height, window, cx)
9758 .log_err();
9759 }
9760 }
9761
9762 pub fn shape(&self) -> CursorShape {
9763 self.shape
9764 }
9765}
9766
9767#[derive(Debug)]
9768pub struct HighlightedRange {
9769 pub start_y: Pixels,
9770 pub line_height: Pixels,
9771 pub lines: Vec<HighlightedRangeLine>,
9772 pub color: Hsla,
9773 pub corner_radius: Pixels,
9774}
9775
9776#[derive(Debug)]
9777pub struct HighlightedRangeLine {
9778 pub start_x: Pixels,
9779 pub end_x: Pixels,
9780}
9781
9782impl HighlightedRange {
9783 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
9784 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
9785 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
9786 self.paint_lines(
9787 self.start_y + self.line_height,
9788 &self.lines[1..],
9789 fill,
9790 bounds,
9791 window,
9792 );
9793 } else {
9794 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
9795 }
9796 }
9797
9798 fn paint_lines(
9799 &self,
9800 start_y: Pixels,
9801 lines: &[HighlightedRangeLine],
9802 fill: bool,
9803 _bounds: Bounds<Pixels>,
9804 window: &mut Window,
9805 ) {
9806 if lines.is_empty() {
9807 return;
9808 }
9809
9810 let first_line = lines.first().unwrap();
9811 let last_line = lines.last().unwrap();
9812
9813 let first_top_left = point(first_line.start_x, start_y);
9814 let first_top_right = point(first_line.end_x, start_y);
9815
9816 let curve_height = point(Pixels::ZERO, self.corner_radius);
9817 let curve_width = |start_x: Pixels, end_x: Pixels| {
9818 let max = (end_x - start_x) / 2.;
9819 let width = if max < self.corner_radius {
9820 max
9821 } else {
9822 self.corner_radius
9823 };
9824
9825 point(width, Pixels::ZERO)
9826 };
9827
9828 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
9829 let mut builder = if fill {
9830 gpui::PathBuilder::fill()
9831 } else {
9832 gpui::PathBuilder::stroke(px(1.))
9833 };
9834 builder.move_to(first_top_right - top_curve_width);
9835 builder.curve_to(first_top_right + curve_height, first_top_right);
9836
9837 let mut iter = lines.iter().enumerate().peekable();
9838 while let Some((ix, line)) = iter.next() {
9839 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
9840
9841 if let Some((_, next_line)) = iter.peek() {
9842 let next_top_right = point(next_line.end_x, bottom_right.y);
9843
9844 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
9845 Ordering::Equal => {
9846 builder.line_to(bottom_right);
9847 }
9848 Ordering::Less => {
9849 let curve_width = curve_width(next_top_right.x, bottom_right.x);
9850 builder.line_to(bottom_right - curve_height);
9851 if self.corner_radius > Pixels::ZERO {
9852 builder.curve_to(bottom_right - curve_width, bottom_right);
9853 }
9854 builder.line_to(next_top_right + curve_width);
9855 if self.corner_radius > Pixels::ZERO {
9856 builder.curve_to(next_top_right + curve_height, next_top_right);
9857 }
9858 }
9859 Ordering::Greater => {
9860 let curve_width = curve_width(bottom_right.x, next_top_right.x);
9861 builder.line_to(bottom_right - curve_height);
9862 if self.corner_radius > Pixels::ZERO {
9863 builder.curve_to(bottom_right + curve_width, bottom_right);
9864 }
9865 builder.line_to(next_top_right - curve_width);
9866 if self.corner_radius > Pixels::ZERO {
9867 builder.curve_to(next_top_right + curve_height, next_top_right);
9868 }
9869 }
9870 }
9871 } else {
9872 let curve_width = curve_width(line.start_x, line.end_x);
9873 builder.line_to(bottom_right - curve_height);
9874 if self.corner_radius > Pixels::ZERO {
9875 builder.curve_to(bottom_right - curve_width, bottom_right);
9876 }
9877
9878 let bottom_left = point(line.start_x, bottom_right.y);
9879 builder.line_to(bottom_left + curve_width);
9880 if self.corner_radius > Pixels::ZERO {
9881 builder.curve_to(bottom_left - curve_height, bottom_left);
9882 }
9883 }
9884 }
9885
9886 if first_line.start_x > last_line.start_x {
9887 let curve_width = curve_width(last_line.start_x, first_line.start_x);
9888 let second_top_left = point(last_line.start_x, start_y + self.line_height);
9889 builder.line_to(second_top_left + curve_height);
9890 if self.corner_radius > Pixels::ZERO {
9891 builder.curve_to(second_top_left + curve_width, second_top_left);
9892 }
9893 let first_bottom_left = point(first_line.start_x, second_top_left.y);
9894 builder.line_to(first_bottom_left - curve_width);
9895 if self.corner_radius > Pixels::ZERO {
9896 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
9897 }
9898 }
9899
9900 builder.line_to(first_top_left + curve_height);
9901 if self.corner_radius > Pixels::ZERO {
9902 builder.curve_to(first_top_left + top_curve_width, first_top_left);
9903 }
9904 builder.line_to(first_top_right - top_curve_width);
9905
9906 if let Ok(path) = builder.build() {
9907 window.paint_path(path, self.color);
9908 }
9909 }
9910}
9911
9912enum CursorPopoverType {
9913 CodeContextMenu,
9914 EditPrediction,
9915}
9916
9917pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
9918 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
9919}
9920
9921fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
9922 (delta.pow(1.2) / 300.0).into()
9923}
9924
9925pub fn register_action<T: Action>(
9926 editor: &Entity<Editor>,
9927 window: &mut Window,
9928 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
9929) {
9930 let editor = editor.clone();
9931 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
9932 let action = action.downcast_ref().unwrap();
9933 if phase == DispatchPhase::Bubble {
9934 editor.update(cx, |editor, cx| {
9935 listener(editor, action, window, cx);
9936 })
9937 }
9938 })
9939}
9940
9941fn compute_auto_height_layout(
9942 editor: &mut Editor,
9943 min_lines: usize,
9944 max_lines: usize,
9945 max_line_number_width: Pixels,
9946 known_dimensions: Size<Option<Pixels>>,
9947 available_width: AvailableSpace,
9948 window: &mut Window,
9949 cx: &mut Context<Editor>,
9950) -> Option<Size<Pixels>> {
9951 let width = known_dimensions.width.or({
9952 if let AvailableSpace::Definite(available_width) = available_width {
9953 Some(available_width)
9954 } else {
9955 None
9956 }
9957 })?;
9958 if let Some(height) = known_dimensions.height {
9959 return Some(size(width, height));
9960 }
9961
9962 let style = editor.style.as_ref().unwrap();
9963 let font_id = window.text_system().resolve_font(&style.text.font());
9964 let font_size = style.text.font_size.to_pixels(window.rem_size());
9965 let line_height = style.text.line_height_in_pixels(window.rem_size());
9966 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
9967
9968 let mut snapshot = editor.snapshot(window, cx);
9969 let gutter_dimensions = snapshot
9970 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
9971 .or_else(|| {
9972 editor
9973 .offset_content
9974 .then(|| GutterDimensions::default_with_margin(font_id, font_size, cx))
9975 })
9976 .unwrap_or_default();
9977
9978 editor.gutter_dimensions = gutter_dimensions;
9979 let text_width = width - gutter_dimensions.width;
9980 let overscroll = size(em_width, px(0.));
9981
9982 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
9983 if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None) {
9984 if editor.set_wrap_width(Some(editor_width), cx) {
9985 snapshot = editor.snapshot(window, cx);
9986 }
9987 }
9988
9989 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
9990 let height = scroll_height
9991 .max(line_height * min_lines as f32)
9992 .min(line_height * max_lines as f32);
9993
9994 Some(size(width, height))
9995}
9996
9997#[cfg(test)]
9998mod tests {
9999 use super::*;
10000 use crate::{
10001 Editor, MultiBuffer,
10002 display_map::{BlockPlacement, BlockProperties},
10003 editor_tests::{init_test, update_test_language_settings},
10004 };
10005 use gpui::{TestAppContext, VisualTestContext};
10006 use language::language_settings;
10007 use log::info;
10008 use std::num::NonZeroU32;
10009 use util::test::sample_text;
10010
10011 #[gpui::test]
10012 fn test_shape_line_numbers(cx: &mut TestAppContext) {
10013 init_test(cx, |_| {});
10014 let window = cx.add_window(|window, cx| {
10015 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
10016 Editor::new(EditorMode::full(), buffer, None, window, cx)
10017 });
10018
10019 let editor = window.root(cx).unwrap();
10020 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
10021 let line_height = window
10022 .update(cx, |_, window, _| {
10023 style.text.line_height_in_pixels(window.rem_size())
10024 })
10025 .unwrap();
10026 let element = EditorElement::new(&editor, style);
10027 let snapshot = window
10028 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
10029 .unwrap();
10030
10031 let layouts = cx
10032 .update_window(*window, |_, window, cx| {
10033 element.layout_line_numbers(
10034 None,
10035 GutterDimensions {
10036 left_padding: Pixels::ZERO,
10037 right_padding: Pixels::ZERO,
10038 width: px(30.0),
10039 margin: Pixels::ZERO,
10040 git_blame_entries_width: None,
10041 },
10042 line_height,
10043 gpui::Point::default(),
10044 DisplayRow(0)..DisplayRow(6),
10045 &(0..6)
10046 .map(|row| RowInfo {
10047 buffer_row: Some(row),
10048 ..Default::default()
10049 })
10050 .collect::<Vec<_>>(),
10051 &BTreeMap::default(),
10052 Some(DisplayPoint::new(DisplayRow(0), 0)),
10053 &snapshot,
10054 window,
10055 cx,
10056 )
10057 })
10058 .unwrap();
10059 assert_eq!(layouts.len(), 6);
10060
10061 let relative_rows = window
10062 .update(cx, |editor, window, cx| {
10063 let snapshot = editor.snapshot(window, cx);
10064 element.calculate_relative_line_numbers(
10065 &snapshot,
10066 &(DisplayRow(0)..DisplayRow(6)),
10067 Some(DisplayRow(3)),
10068 )
10069 })
10070 .unwrap();
10071 assert_eq!(relative_rows[&DisplayRow(0)], 3);
10072 assert_eq!(relative_rows[&DisplayRow(1)], 2);
10073 assert_eq!(relative_rows[&DisplayRow(2)], 1);
10074 // current line has no relative number
10075 assert_eq!(relative_rows[&DisplayRow(4)], 1);
10076 assert_eq!(relative_rows[&DisplayRow(5)], 2);
10077
10078 // works if cursor is before screen
10079 let relative_rows = window
10080 .update(cx, |editor, window, cx| {
10081 let snapshot = editor.snapshot(window, cx);
10082 element.calculate_relative_line_numbers(
10083 &snapshot,
10084 &(DisplayRow(3)..DisplayRow(6)),
10085 Some(DisplayRow(1)),
10086 )
10087 })
10088 .unwrap();
10089 assert_eq!(relative_rows.len(), 3);
10090 assert_eq!(relative_rows[&DisplayRow(3)], 2);
10091 assert_eq!(relative_rows[&DisplayRow(4)], 3);
10092 assert_eq!(relative_rows[&DisplayRow(5)], 4);
10093
10094 // works if cursor is after screen
10095 let relative_rows = window
10096 .update(cx, |editor, window, cx| {
10097 let snapshot = editor.snapshot(window, cx);
10098 element.calculate_relative_line_numbers(
10099 &snapshot,
10100 &(DisplayRow(0)..DisplayRow(3)),
10101 Some(DisplayRow(6)),
10102 )
10103 })
10104 .unwrap();
10105 assert_eq!(relative_rows.len(), 3);
10106 assert_eq!(relative_rows[&DisplayRow(0)], 5);
10107 assert_eq!(relative_rows[&DisplayRow(1)], 4);
10108 assert_eq!(relative_rows[&DisplayRow(2)], 3);
10109 }
10110
10111 #[gpui::test]
10112 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
10113 init_test(cx, |_| {});
10114
10115 let window = cx.add_window(|window, cx| {
10116 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
10117 Editor::new(EditorMode::full(), buffer, None, window, cx)
10118 });
10119 let cx = &mut VisualTestContext::from_window(*window, cx);
10120 let editor = window.root(cx).unwrap();
10121 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10122
10123 window
10124 .update(cx, |editor, window, cx| {
10125 editor.cursor_shape = CursorShape::Block;
10126 editor.change_selections(None, window, cx, |s| {
10127 s.select_ranges([
10128 Point::new(0, 0)..Point::new(1, 0),
10129 Point::new(3, 2)..Point::new(3, 3),
10130 Point::new(5, 6)..Point::new(6, 0),
10131 ]);
10132 });
10133 })
10134 .unwrap();
10135
10136 let (_, state) = cx.draw(
10137 point(px(500.), px(500.)),
10138 size(px(500.), px(500.)),
10139 |_, _| EditorElement::new(&editor, style),
10140 );
10141
10142 assert_eq!(state.selections.len(), 1);
10143 let local_selections = &state.selections[0].1;
10144 assert_eq!(local_selections.len(), 3);
10145 // moves cursor back one line
10146 assert_eq!(
10147 local_selections[0].head,
10148 DisplayPoint::new(DisplayRow(0), 6)
10149 );
10150 assert_eq!(
10151 local_selections[0].range,
10152 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
10153 );
10154
10155 // moves cursor back one column
10156 assert_eq!(
10157 local_selections[1].range,
10158 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
10159 );
10160 assert_eq!(
10161 local_selections[1].head,
10162 DisplayPoint::new(DisplayRow(3), 2)
10163 );
10164
10165 // leaves cursor on the max point
10166 assert_eq!(
10167 local_selections[2].range,
10168 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
10169 );
10170 assert_eq!(
10171 local_selections[2].head,
10172 DisplayPoint::new(DisplayRow(6), 0)
10173 );
10174
10175 // active lines does not include 1 (even though the range of the selection does)
10176 assert_eq!(
10177 state.active_rows.keys().cloned().collect::<Vec<_>>(),
10178 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
10179 );
10180 }
10181
10182 #[gpui::test]
10183 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
10184 init_test(cx, |_| {});
10185
10186 let window = cx.add_window(|window, cx| {
10187 let buffer = MultiBuffer::build_simple("", cx);
10188 Editor::new(EditorMode::full(), buffer, None, window, cx)
10189 });
10190 let cx = &mut VisualTestContext::from_window(*window, cx);
10191 let editor = window.root(cx).unwrap();
10192 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10193 window
10194 .update(cx, |editor, window, cx| {
10195 editor.set_placeholder_text("hello", cx);
10196 editor.insert_blocks(
10197 [BlockProperties {
10198 style: BlockStyle::Fixed,
10199 placement: BlockPlacement::Above(Anchor::min()),
10200 height: Some(3),
10201 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
10202 priority: 0,
10203 render_in_minimap: true,
10204 }],
10205 None,
10206 cx,
10207 );
10208
10209 // Blur the editor so that it displays placeholder text.
10210 window.blur();
10211 })
10212 .unwrap();
10213
10214 let (_, state) = cx.draw(
10215 point(px(500.), px(500.)),
10216 size(px(500.), px(500.)),
10217 |_, _| EditorElement::new(&editor, style),
10218 );
10219 assert_eq!(state.position_map.line_layouts.len(), 4);
10220 assert_eq!(state.line_numbers.len(), 1);
10221 assert_eq!(
10222 state
10223 .line_numbers
10224 .get(&MultiBufferRow(0))
10225 .map(|line_number| line_number.shaped_line.text.as_ref()),
10226 Some("1")
10227 );
10228 }
10229
10230 #[gpui::test]
10231 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
10232 const TAB_SIZE: u32 = 4;
10233
10234 let input_text = "\t \t|\t| a b";
10235 let expected_invisibles = vec![
10236 Invisible::Tab {
10237 line_start_offset: 0,
10238 line_end_offset: TAB_SIZE as usize,
10239 },
10240 Invisible::Whitespace {
10241 line_offset: TAB_SIZE as usize,
10242 },
10243 Invisible::Tab {
10244 line_start_offset: TAB_SIZE as usize + 1,
10245 line_end_offset: TAB_SIZE as usize * 2,
10246 },
10247 Invisible::Tab {
10248 line_start_offset: TAB_SIZE as usize * 2 + 1,
10249 line_end_offset: TAB_SIZE as usize * 3,
10250 },
10251 Invisible::Whitespace {
10252 line_offset: TAB_SIZE as usize * 3 + 1,
10253 },
10254 Invisible::Whitespace {
10255 line_offset: TAB_SIZE as usize * 3 + 3,
10256 },
10257 ];
10258 assert_eq!(
10259 expected_invisibles.len(),
10260 input_text
10261 .chars()
10262 .filter(|initial_char| initial_char.is_whitespace())
10263 .count(),
10264 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
10265 );
10266
10267 for show_line_numbers in [true, false] {
10268 init_test(cx, |s| {
10269 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10270 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
10271 });
10272
10273 let actual_invisibles = collect_invisibles_from_new_editor(
10274 cx,
10275 EditorMode::full(),
10276 input_text,
10277 px(500.0),
10278 show_line_numbers,
10279 );
10280
10281 assert_eq!(expected_invisibles, actual_invisibles);
10282 }
10283 }
10284
10285 #[gpui::test]
10286 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
10287 init_test(cx, |s| {
10288 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10289 s.defaults.tab_size = NonZeroU32::new(4);
10290 });
10291
10292 for editor_mode_without_invisibles in [
10293 EditorMode::SingleLine { auto_width: false },
10294 EditorMode::AutoHeight {
10295 min_lines: 1,
10296 max_lines: 100,
10297 },
10298 ] {
10299 for show_line_numbers in [true, false] {
10300 let invisibles = collect_invisibles_from_new_editor(
10301 cx,
10302 editor_mode_without_invisibles.clone(),
10303 "\t\t\t| | a b",
10304 px(500.0),
10305 show_line_numbers,
10306 );
10307 assert!(
10308 invisibles.is_empty(),
10309 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
10310 );
10311 }
10312 }
10313 }
10314
10315 #[gpui::test]
10316 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
10317 let tab_size = 4;
10318 let input_text = "a\tbcd ".repeat(9);
10319 let repeated_invisibles = [
10320 Invisible::Tab {
10321 line_start_offset: 1,
10322 line_end_offset: tab_size as usize,
10323 },
10324 Invisible::Whitespace {
10325 line_offset: tab_size as usize + 3,
10326 },
10327 Invisible::Whitespace {
10328 line_offset: tab_size as usize + 4,
10329 },
10330 Invisible::Whitespace {
10331 line_offset: tab_size as usize + 5,
10332 },
10333 Invisible::Whitespace {
10334 line_offset: tab_size as usize + 6,
10335 },
10336 Invisible::Whitespace {
10337 line_offset: tab_size as usize + 7,
10338 },
10339 ];
10340 let expected_invisibles = std::iter::once(repeated_invisibles)
10341 .cycle()
10342 .take(9)
10343 .flatten()
10344 .collect::<Vec<_>>();
10345 assert_eq!(
10346 expected_invisibles.len(),
10347 input_text
10348 .chars()
10349 .filter(|initial_char| initial_char.is_whitespace())
10350 .count(),
10351 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
10352 );
10353 info!("Expected invisibles: {expected_invisibles:?}");
10354
10355 init_test(cx, |_| {});
10356
10357 // Put the same string with repeating whitespace pattern into editors of various size,
10358 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
10359 let resize_step = 10.0;
10360 let mut editor_width = 200.0;
10361 while editor_width <= 1000.0 {
10362 for show_line_numbers in [true, false] {
10363 update_test_language_settings(cx, |s| {
10364 s.defaults.tab_size = NonZeroU32::new(tab_size);
10365 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10366 s.defaults.preferred_line_length = Some(editor_width as u32);
10367 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
10368 });
10369
10370 let actual_invisibles = collect_invisibles_from_new_editor(
10371 cx,
10372 EditorMode::full(),
10373 &input_text,
10374 px(editor_width),
10375 show_line_numbers,
10376 );
10377
10378 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
10379 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
10380 let mut i = 0;
10381 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
10382 i = actual_index;
10383 match expected_invisibles.get(i) {
10384 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
10385 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
10386 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
10387 _ => {
10388 panic!(
10389 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
10390 )
10391 }
10392 },
10393 None => {
10394 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
10395 }
10396 }
10397 }
10398 let missing_expected_invisibles = &expected_invisibles[i + 1..];
10399 assert!(
10400 missing_expected_invisibles.is_empty(),
10401 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
10402 );
10403
10404 editor_width += resize_step;
10405 }
10406 }
10407 }
10408
10409 fn collect_invisibles_from_new_editor(
10410 cx: &mut TestAppContext,
10411 editor_mode: EditorMode,
10412 input_text: &str,
10413 editor_width: Pixels,
10414 show_line_numbers: bool,
10415 ) -> Vec<Invisible> {
10416 info!(
10417 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
10418 editor_width.0
10419 );
10420 let window = cx.add_window(|window, cx| {
10421 let buffer = MultiBuffer::build_simple(input_text, cx);
10422 Editor::new(editor_mode, buffer, None, window, cx)
10423 });
10424 let cx = &mut VisualTestContext::from_window(*window, cx);
10425 let editor = window.root(cx).unwrap();
10426
10427 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10428 window
10429 .update(cx, |editor, _, cx| {
10430 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
10431 editor.set_wrap_width(Some(editor_width), cx);
10432 editor.set_show_line_numbers(show_line_numbers, cx);
10433 })
10434 .unwrap();
10435 let (_, state) = cx.draw(
10436 point(px(500.), px(500.)),
10437 size(px(500.), px(500.)),
10438 |_, _| EditorElement::new(&editor, style),
10439 );
10440 state
10441 .position_map
10442 .line_layouts
10443 .iter()
10444 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
10445 .cloned()
10446 .collect()
10447 }
10448}