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