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