1use crate::{
2 ActiveDiagnostic, BlockId, CURSORS_VISIBLE_FOR, ChunkRendererContext, ChunkReplacement,
3 CodeActionSource, ColumnarMode, ConflictsOurs, ConflictsOursMarker, ConflictsOuter,
4 ConflictsTheirs, ConflictsTheirsMarker, ContextMenuPlacement, CursorShape, CustomBlockId,
5 DisplayDiffHunk, DisplayPoint, DisplayRow, DocumentHighlightRead, DocumentHighlightWrite,
6 EditDisplayMode, Editor, EditorMode, EditorSettings, EditorSnapshot, EditorStyle,
7 FILE_HEADER_HEIGHT, FocusedBlock, GutterDimensions, HalfPageDown, HalfPageUp, HandleInput,
8 HoveredCursor, InlayHintRefreshReason, InlineCompletion, JumpData, LineDown, LineHighlight,
9 LineUp, MAX_LINE_LEN, MINIMAP_FONT_SIZE, MULTI_BUFFER_EXCERPT_HEADER_HEIGHT, OpenExcerpts,
10 PageDown, PageUp, PhantomBreakpointIndicator, Point, RowExt, RowRangeExt, SelectPhase,
11 SelectedTextHighlight, Selection, SelectionDragState, SoftWrap, StickyHeaderExcerpt, ToPoint,
12 ToggleFold,
13 code_context_menus::{CodeActionsMenu, MENU_ASIDE_MAX_WIDTH, MENU_ASIDE_MIN_WIDTH, MENU_GAP},
14 display_map::{
15 Block, BlockContext, BlockStyle, ChunkRendererId, DisplaySnapshot, EditorMargins,
16 HighlightKey, HighlightedChunk, ToDisplayPoint,
17 },
18 editor_settings::{
19 CurrentLineHighlight, DocumentColorsRenderMode, DoubleClickInMultibuffer, Minimap,
20 MinimapThumb, MinimapThumbBorder, ScrollBeyondLastLine, ScrollbarAxes,
21 ScrollbarDiagnostics, 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 file_icons::FileIcons;
36use git::{
37 Oid,
38 blame::{BlameEntry, ParsedCommitMessage},
39 status::FileStatus,
40};
41use gpui::{
42 Action, Along, AnyElement, App, AppContext, AvailableSpace, Axis as ScrollbarAxis, BorderStyle,
43 Bounds, ClickEvent, ContentMask, Context, Corner, Corners, CursorStyle, DispatchPhase, Edges,
44 Element, ElementInputHandler, Entity, Focusable as _, FontId, GlobalElementId, Hitbox,
45 HitboxBehavior, Hsla, InteractiveElement, IntoElement, IsZero, Keystroke, Length,
46 ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, PaintQuad,
47 ParentElement, Pixels, ScrollDelta, ScrollHandle, ScrollWheelEvent, ShapedLine, SharedString,
48 Size, StatefulInteractiveElement, Style, Styled, TextRun, TextStyleRefinement, WeakEntity,
49 Window, anchored, deferred, div, fill, linear_color_stop, linear_gradient, outline, point, px,
50 quad, relative, size, solid_background, transparent_black,
51};
52use itertools::Itertools;
53use language::language_settings::{
54 IndentGuideBackgroundColoring, IndentGuideColoring, IndentGuideSettings, ShowWhitespaceSetting,
55};
56use markdown::Markdown;
57use multi_buffer::{
58 Anchor, ExcerptId, ExcerptInfo, ExpandExcerptDirection, ExpandInfo, MultiBufferPoint,
59 MultiBufferRow, RowInfo,
60};
61
62use project::{
63 ProjectPath,
64 debugger::breakpoint_store::{Breakpoint, BreakpointSessionState},
65 project_settings::{GitGutterSetting, GitHunkStyleSetting, ProjectSettings},
66};
67use settings::Settings;
68use smallvec::{SmallVec, smallvec};
69use std::{
70 any::TypeId,
71 borrow::Cow,
72 cmp::{self, Ordering},
73 fmt::{self, Write},
74 iter, mem,
75 ops::{Deref, Range},
76 rc::Rc,
77 sync::Arc,
78 time::{Duration, Instant},
79};
80use sum_tree::Bias;
81use text::{BufferId, SelectionGoal};
82use theme::{ActiveTheme, Appearance, BufferLineHeight, PlayerColor};
83use ui::{ButtonLike, KeyBinding, POPOVER_Y_PADDING, Tooltip, h_flex, prelude::*};
84use unicode_segmentation::UnicodeSegmentation;
85use util::post_inc;
86use util::{RangeExt, ResultExt, debug_panic};
87use workspace::{CollaboratorId, Workspace, item::Item, notifications::NotifyTaskExt};
88
89const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 7.;
90const SELECTION_DRAG_DELAY: Duration = Duration::from_millis(300);
91
92/// Determines what kinds of highlights should be applied to a lines background.
93#[derive(Clone, Copy, Default)]
94struct LineHighlightSpec {
95 selection: bool,
96 breakpoint: bool,
97 _active_stack_frame: bool,
98}
99
100#[derive(Debug)]
101struct SelectionLayout {
102 head: DisplayPoint,
103 cursor_shape: CursorShape,
104 is_newest: bool,
105 is_local: bool,
106 range: Range<DisplayPoint>,
107 active_rows: Range<DisplayRow>,
108 user_name: Option<SharedString>,
109}
110
111struct InlineBlameLayout {
112 element: AnyElement,
113 bounds: Bounds<Pixels>,
114 entry: BlameEntry,
115}
116
117impl SelectionLayout {
118 fn new<T: ToPoint + ToDisplayPoint + Clone>(
119 selection: Selection<T>,
120 line_mode: bool,
121 cursor_shape: CursorShape,
122 map: &DisplaySnapshot,
123 is_newest: bool,
124 is_local: bool,
125 user_name: Option<SharedString>,
126 ) -> Self {
127 let point_selection = selection.map(|p| p.to_point(&map.buffer_snapshot));
128 let display_selection = point_selection.map(|p| p.to_display_point(map));
129 let mut range = display_selection.range();
130 let mut head = display_selection.head();
131 let mut active_rows = map.prev_line_boundary(point_selection.start).1.row()
132 ..map.next_line_boundary(point_selection.end).1.row();
133
134 // vim visual line mode
135 if line_mode {
136 let point_range = map.expand_to_line(point_selection.range());
137 range = point_range.start.to_display_point(map)..point_range.end.to_display_point(map);
138 }
139
140 // any vim visual mode (including line mode)
141 if (cursor_shape == CursorShape::Block || cursor_shape == CursorShape::Hollow)
142 && !range.is_empty()
143 && !selection.reversed
144 {
145 if head.column() > 0 {
146 head = map.clip_point(DisplayPoint::new(head.row(), head.column() - 1), Bias::Left)
147 } else if head.row().0 > 0 && head != map.max_point() {
148 head = map.clip_point(
149 DisplayPoint::new(
150 head.row().previous_row(),
151 map.line_len(head.row().previous_row()),
152 ),
153 Bias::Left,
154 );
155 // updating range.end is a no-op unless you're cursor is
156 // on the newline containing a multi-buffer divider
157 // in which case the clip_point may have moved the head up
158 // an additional row.
159 range.end = DisplayPoint::new(head.row().next_row(), 0);
160 active_rows.end = head.row();
161 }
162 }
163
164 Self {
165 head,
166 cursor_shape,
167 is_newest,
168 is_local,
169 range,
170 active_rows,
171 user_name,
172 }
173 }
174}
175
176pub struct EditorElement {
177 editor: Entity<Editor>,
178 style: EditorStyle,
179}
180
181type DisplayRowDelta = u32;
182
183impl EditorElement {
184 pub(crate) const SCROLLBAR_WIDTH: Pixels = px(15.);
185
186 pub fn new(editor: &Entity<Editor>, style: EditorStyle) -> Self {
187 Self {
188 editor: editor.clone(),
189 style,
190 }
191 }
192
193 fn register_actions(&self, window: &mut Window, cx: &mut App) {
194 let editor = &self.editor;
195 editor.update(cx, |editor, cx| {
196 for action in editor.editor_actions.borrow().values() {
197 (action)(editor, window, cx)
198 }
199 });
200
201 crate::rust_analyzer_ext::apply_related_actions(editor, window, cx);
202 crate::clangd_ext::apply_related_actions(editor, window, cx);
203
204 register_action(editor, window, Editor::open_context_menu);
205 register_action(editor, window, Editor::move_left);
206 register_action(editor, window, Editor::move_right);
207 register_action(editor, window, Editor::move_down);
208 register_action(editor, window, Editor::move_down_by_lines);
209 register_action(editor, window, Editor::select_down_by_lines);
210 register_action(editor, window, Editor::move_up);
211 register_action(editor, window, Editor::move_up_by_lines);
212 register_action(editor, window, Editor::select_up_by_lines);
213 register_action(editor, window, Editor::select_page_down);
214 register_action(editor, window, Editor::select_page_up);
215 register_action(editor, window, Editor::cancel);
216 register_action(editor, window, Editor::newline);
217 register_action(editor, window, Editor::newline_above);
218 register_action(editor, window, Editor::newline_below);
219 register_action(editor, window, Editor::backspace);
220 register_action(editor, window, Editor::delete);
221 register_action(editor, window, Editor::tab);
222 register_action(editor, window, Editor::backtab);
223 register_action(editor, window, Editor::indent);
224 register_action(editor, window, Editor::outdent);
225 register_action(editor, window, Editor::autoindent);
226 register_action(editor, window, Editor::delete_line);
227 register_action(editor, window, Editor::join_lines);
228 register_action(editor, window, Editor::sort_lines_case_sensitive);
229 register_action(editor, window, Editor::sort_lines_case_insensitive);
230 register_action(editor, window, Editor::reverse_lines);
231 register_action(editor, window, Editor::shuffle_lines);
232 register_action(editor, window, Editor::toggle_case);
233 register_action(editor, window, Editor::convert_indentation_to_spaces);
234 register_action(editor, window, Editor::convert_indentation_to_tabs);
235 register_action(editor, window, Editor::convert_to_upper_case);
236 register_action(editor, window, Editor::convert_to_lower_case);
237 register_action(editor, window, Editor::convert_to_title_case);
238 register_action(editor, window, Editor::convert_to_snake_case);
239 register_action(editor, window, Editor::convert_to_kebab_case);
240 register_action(editor, window, Editor::convert_to_upper_camel_case);
241 register_action(editor, window, Editor::convert_to_lower_camel_case);
242 register_action(editor, window, Editor::convert_to_opposite_case);
243 register_action(editor, window, Editor::convert_to_rot13);
244 register_action(editor, window, Editor::convert_to_rot47);
245 register_action(editor, window, Editor::delete_to_previous_word_start);
246 register_action(editor, window, Editor::delete_to_previous_subword_start);
247 register_action(editor, window, Editor::delete_to_next_word_end);
248 register_action(editor, window, Editor::delete_to_next_subword_end);
249 register_action(editor, window, Editor::delete_to_beginning_of_line);
250 register_action(editor, window, Editor::delete_to_end_of_line);
251 register_action(editor, window, Editor::cut_to_end_of_line);
252 register_action(editor, window, Editor::duplicate_line_up);
253 register_action(editor, window, Editor::duplicate_line_down);
254 register_action(editor, window, Editor::duplicate_selection);
255 register_action(editor, window, Editor::move_line_up);
256 register_action(editor, window, Editor::move_line_down);
257 register_action(editor, window, Editor::transpose);
258 register_action(editor, window, Editor::rewrap);
259 register_action(editor, window, Editor::cut);
260 register_action(editor, window, Editor::kill_ring_cut);
261 register_action(editor, window, Editor::kill_ring_yank);
262 register_action(editor, window, Editor::copy);
263 register_action(editor, window, Editor::copy_and_trim);
264 register_action(editor, window, Editor::paste);
265 register_action(editor, window, Editor::undo);
266 register_action(editor, window, Editor::redo);
267 register_action(editor, window, Editor::move_page_up);
268 register_action(editor, window, Editor::move_page_down);
269 register_action(editor, window, Editor::next_screen);
270 register_action(editor, window, Editor::scroll_cursor_top);
271 register_action(editor, window, Editor::scroll_cursor_center);
272 register_action(editor, window, Editor::scroll_cursor_bottom);
273 register_action(editor, window, Editor::scroll_cursor_center_top_bottom);
274 register_action(editor, window, |editor, _: &LineDown, window, cx| {
275 editor.scroll_screen(&ScrollAmount::Line(1.), window, cx)
276 });
277 register_action(editor, window, |editor, _: &LineUp, window, cx| {
278 editor.scroll_screen(&ScrollAmount::Line(-1.), window, cx)
279 });
280 register_action(editor, window, |editor, _: &HalfPageDown, window, cx| {
281 editor.scroll_screen(&ScrollAmount::Page(0.5), window, cx)
282 });
283 register_action(
284 editor,
285 window,
286 |editor, HandleInput(text): &HandleInput, window, cx| {
287 if text.is_empty() {
288 return;
289 }
290 editor.handle_input(text, window, cx);
291 },
292 );
293 register_action(editor, window, |editor, _: &HalfPageUp, window, cx| {
294 editor.scroll_screen(&ScrollAmount::Page(-0.5), window, cx)
295 });
296 register_action(editor, window, |editor, _: &PageDown, window, cx| {
297 editor.scroll_screen(&ScrollAmount::Page(1.), window, cx)
298 });
299 register_action(editor, window, |editor, _: &PageUp, window, cx| {
300 editor.scroll_screen(&ScrollAmount::Page(-1.), window, cx)
301 });
302 register_action(editor, window, Editor::move_to_previous_word_start);
303 register_action(editor, window, Editor::move_to_previous_subword_start);
304 register_action(editor, window, Editor::move_to_next_word_end);
305 register_action(editor, window, Editor::move_to_next_subword_end);
306 register_action(editor, window, Editor::move_to_beginning_of_line);
307 register_action(editor, window, Editor::move_to_end_of_line);
308 register_action(editor, window, Editor::move_to_start_of_paragraph);
309 register_action(editor, window, Editor::move_to_end_of_paragraph);
310 register_action(editor, window, Editor::move_to_beginning);
311 register_action(editor, window, Editor::move_to_end);
312 register_action(editor, window, Editor::move_to_start_of_excerpt);
313 register_action(editor, window, Editor::move_to_start_of_next_excerpt);
314 register_action(editor, window, Editor::move_to_end_of_excerpt);
315 register_action(editor, window, Editor::move_to_end_of_previous_excerpt);
316 register_action(editor, window, Editor::select_up);
317 register_action(editor, window, Editor::select_down);
318 register_action(editor, window, Editor::select_left);
319 register_action(editor, window, Editor::select_right);
320 register_action(editor, window, Editor::select_to_previous_word_start);
321 register_action(editor, window, Editor::select_to_previous_subword_start);
322 register_action(editor, window, Editor::select_to_next_word_end);
323 register_action(editor, window, Editor::select_to_next_subword_end);
324 register_action(editor, window, Editor::select_to_beginning_of_line);
325 register_action(editor, window, Editor::select_to_end_of_line);
326 register_action(editor, window, Editor::select_to_start_of_paragraph);
327 register_action(editor, window, Editor::select_to_end_of_paragraph);
328 register_action(editor, window, Editor::select_to_start_of_excerpt);
329 register_action(editor, window, Editor::select_to_start_of_next_excerpt);
330 register_action(editor, window, Editor::select_to_end_of_excerpt);
331 register_action(editor, window, Editor::select_to_end_of_previous_excerpt);
332 register_action(editor, window, Editor::select_to_beginning);
333 register_action(editor, window, Editor::select_to_end);
334 register_action(editor, window, Editor::select_all);
335 register_action(editor, window, |editor, action, window, cx| {
336 editor.select_all_matches(action, window, cx).log_err();
337 });
338 register_action(editor, window, Editor::select_line);
339 register_action(editor, window, Editor::split_selection_into_lines);
340 register_action(editor, window, Editor::add_selection_above);
341 register_action(editor, window, Editor::add_selection_below);
342 register_action(editor, window, |editor, action, window, cx| {
343 editor.select_next(action, window, cx).log_err();
344 });
345 register_action(editor, window, |editor, action, window, cx| {
346 editor.select_previous(action, window, cx).log_err();
347 });
348 register_action(editor, window, |editor, action, window, cx| {
349 editor.find_next_match(action, window, cx).log_err();
350 });
351 register_action(editor, window, |editor, action, window, cx| {
352 editor.find_previous_match(action, window, cx).log_err();
353 });
354 register_action(editor, window, Editor::toggle_comments);
355 register_action(editor, window, Editor::select_larger_syntax_node);
356 register_action(editor, window, Editor::select_smaller_syntax_node);
357 register_action(editor, window, Editor::select_enclosing_symbol);
358 register_action(editor, window, Editor::move_to_enclosing_bracket);
359 register_action(editor, window, Editor::undo_selection);
360 register_action(editor, window, Editor::redo_selection);
361 if !editor.read(cx).is_singleton(cx) {
362 register_action(editor, window, Editor::expand_excerpts);
363 register_action(editor, window, Editor::expand_excerpts_up);
364 register_action(editor, window, Editor::expand_excerpts_down);
365 }
366 register_action(editor, window, Editor::go_to_diagnostic);
367 register_action(editor, window, Editor::go_to_prev_diagnostic);
368 register_action(editor, window, Editor::go_to_next_hunk);
369 register_action(editor, window, Editor::go_to_prev_hunk);
370 register_action(editor, window, |editor, action, window, cx| {
371 editor
372 .go_to_definition(action, window, cx)
373 .detach_and_log_err(cx);
374 });
375 register_action(editor, window, |editor, action, window, cx| {
376 editor
377 .go_to_definition_split(action, window, cx)
378 .detach_and_log_err(cx);
379 });
380 register_action(editor, window, |editor, action, window, cx| {
381 editor
382 .go_to_declaration(action, window, cx)
383 .detach_and_log_err(cx);
384 });
385 register_action(editor, window, |editor, action, window, cx| {
386 editor
387 .go_to_declaration_split(action, window, cx)
388 .detach_and_log_err(cx);
389 });
390 register_action(editor, window, |editor, action, window, cx| {
391 editor
392 .go_to_implementation(action, window, cx)
393 .detach_and_log_err(cx);
394 });
395 register_action(editor, window, |editor, action, window, cx| {
396 editor
397 .go_to_implementation_split(action, window, cx)
398 .detach_and_log_err(cx);
399 });
400 register_action(editor, window, |editor, action, window, cx| {
401 editor
402 .go_to_type_definition(action, window, cx)
403 .detach_and_log_err(cx);
404 });
405 register_action(editor, window, |editor, action, window, cx| {
406 editor
407 .go_to_type_definition_split(action, window, cx)
408 .detach_and_log_err(cx);
409 });
410 register_action(editor, window, Editor::open_url);
411 register_action(editor, window, Editor::open_selected_filename);
412 register_action(editor, window, Editor::fold);
413 register_action(editor, window, Editor::fold_at_level);
414 register_action(editor, window, Editor::fold_all);
415 register_action(editor, window, Editor::fold_function_bodies);
416 register_action(editor, window, Editor::fold_recursive);
417 register_action(editor, window, Editor::toggle_fold);
418 register_action(editor, window, Editor::toggle_fold_recursive);
419 register_action(editor, window, Editor::unfold_lines);
420 register_action(editor, window, Editor::unfold_recursive);
421 register_action(editor, window, Editor::unfold_all);
422 register_action(editor, window, Editor::fold_selected_ranges);
423 register_action(editor, window, Editor::set_mark);
424 register_action(editor, window, Editor::swap_selection_ends);
425 register_action(editor, window, Editor::show_completions);
426 register_action(editor, window, Editor::show_word_completions);
427 register_action(editor, window, Editor::toggle_code_actions);
428 register_action(editor, window, Editor::open_excerpts);
429 register_action(editor, window, Editor::open_excerpts_in_split);
430 register_action(editor, window, Editor::open_proposed_changes_editor);
431 register_action(editor, window, Editor::toggle_soft_wrap);
432 register_action(editor, window, Editor::toggle_tab_bar);
433 register_action(editor, window, Editor::toggle_line_numbers);
434 register_action(editor, window, Editor::toggle_relative_line_numbers);
435 register_action(editor, window, Editor::toggle_indent_guides);
436 register_action(editor, window, Editor::toggle_inlay_hints);
437 register_action(editor, window, Editor::toggle_edit_predictions);
438 if editor.read(cx).diagnostics_enabled() {
439 register_action(editor, window, Editor::toggle_diagnostics);
440 }
441 if editor.read(cx).inline_diagnostics_enabled() {
442 register_action(editor, window, Editor::toggle_inline_diagnostics);
443 }
444 if editor.read(cx).supports_minimap(cx) {
445 register_action(editor, window, Editor::toggle_minimap);
446 }
447 register_action(editor, window, hover_popover::hover);
448 register_action(editor, window, Editor::reveal_in_finder);
449 register_action(editor, window, Editor::copy_path);
450 register_action(editor, window, Editor::copy_relative_path);
451 register_action(editor, window, Editor::copy_file_name);
452 register_action(editor, window, Editor::copy_file_name_without_extension);
453 register_action(editor, window, Editor::copy_highlight_json);
454 register_action(editor, window, Editor::copy_permalink_to_line);
455 register_action(editor, window, Editor::open_permalink_to_line);
456 register_action(editor, window, Editor::copy_file_location);
457 register_action(editor, window, Editor::toggle_git_blame);
458 register_action(editor, window, Editor::toggle_git_blame_inline);
459 register_action(editor, window, Editor::open_git_blame_commit);
460 register_action(editor, window, Editor::toggle_selected_diff_hunks);
461 register_action(editor, window, Editor::toggle_staged_selected_diff_hunks);
462 register_action(editor, window, Editor::stage_and_next);
463 register_action(editor, window, Editor::unstage_and_next);
464 register_action(editor, window, Editor::expand_all_diff_hunks);
465 register_action(editor, window, Editor::go_to_previous_change);
466 register_action(editor, window, Editor::go_to_next_change);
467
468 register_action(editor, window, |editor, action, window, cx| {
469 if let Some(task) = editor.format(action, window, cx) {
470 task.detach_and_notify_err(window, cx);
471 } else {
472 cx.propagate();
473 }
474 });
475 register_action(editor, window, |editor, action, window, cx| {
476 if let Some(task) = editor.format_selections(action, window, cx) {
477 task.detach_and_notify_err(window, cx);
478 } else {
479 cx.propagate();
480 }
481 });
482 register_action(editor, window, |editor, action, window, cx| {
483 if let Some(task) = editor.organize_imports(action, window, cx) {
484 task.detach_and_notify_err(window, cx);
485 } else {
486 cx.propagate();
487 }
488 });
489 register_action(editor, window, Editor::restart_language_server);
490 register_action(editor, window, Editor::stop_language_server);
491 register_action(editor, window, Editor::show_character_palette);
492 register_action(editor, window, |editor, action, window, cx| {
493 if let Some(task) = editor.confirm_completion(action, window, cx) {
494 task.detach_and_notify_err(window, cx);
495 } else {
496 cx.propagate();
497 }
498 });
499 register_action(editor, window, |editor, action, window, cx| {
500 if let Some(task) = editor.confirm_completion_replace(action, window, cx) {
501 task.detach_and_notify_err(window, cx);
502 } else {
503 cx.propagate();
504 }
505 });
506 register_action(editor, window, |editor, action, window, cx| {
507 if let Some(task) = editor.confirm_completion_insert(action, window, cx) {
508 task.detach_and_notify_err(window, cx);
509 } else {
510 cx.propagate();
511 }
512 });
513 register_action(editor, window, |editor, action, window, cx| {
514 if let Some(task) = editor.compose_completion(action, window, cx) {
515 task.detach_and_notify_err(window, cx);
516 } else {
517 cx.propagate();
518 }
519 });
520 register_action(editor, window, |editor, action, window, cx| {
521 if let Some(task) = editor.confirm_code_action(action, window, cx) {
522 task.detach_and_notify_err(window, cx);
523 } else {
524 cx.propagate();
525 }
526 });
527 register_action(editor, window, |editor, action, window, cx| {
528 if let Some(task) = editor.rename(action, window, cx) {
529 task.detach_and_notify_err(window, cx);
530 } else {
531 cx.propagate();
532 }
533 });
534 register_action(editor, window, |editor, action, window, cx| {
535 if let Some(task) = editor.confirm_rename(action, window, cx) {
536 task.detach_and_notify_err(window, cx);
537 } else {
538 cx.propagate();
539 }
540 });
541 register_action(editor, window, |editor, action, window, cx| {
542 if let Some(task) = editor.find_all_references(action, window, cx) {
543 task.detach_and_log_err(cx);
544 } else {
545 cx.propagate();
546 }
547 });
548 register_action(editor, window, Editor::show_signature_help);
549 register_action(editor, window, Editor::next_edit_prediction);
550 register_action(editor, window, Editor::previous_edit_prediction);
551 register_action(editor, window, Editor::show_inline_completion);
552 register_action(editor, window, Editor::context_menu_first);
553 register_action(editor, window, Editor::context_menu_prev);
554 register_action(editor, window, Editor::context_menu_next);
555 register_action(editor, window, Editor::context_menu_last);
556 register_action(editor, window, Editor::display_cursor_names);
557 register_action(editor, window, Editor::unique_lines_case_insensitive);
558 register_action(editor, window, Editor::unique_lines_case_sensitive);
559 register_action(editor, window, Editor::accept_partial_inline_completion);
560 register_action(editor, window, Editor::accept_edit_prediction);
561 register_action(editor, window, Editor::restore_file);
562 register_action(editor, window, Editor::git_restore);
563 register_action(editor, window, Editor::apply_all_diff_hunks);
564 register_action(editor, window, Editor::apply_selected_diff_hunks);
565 register_action(editor, window, Editor::open_active_item_in_terminal);
566 register_action(editor, window, Editor::reload_file);
567 register_action(editor, window, Editor::spawn_nearest_task);
568 register_action(editor, window, Editor::insert_uuid_v4);
569 register_action(editor, window, Editor::insert_uuid_v7);
570 register_action(editor, window, Editor::open_selections_in_multibuffer);
571 register_action(editor, window, Editor::toggle_breakpoint);
572 register_action(editor, window, Editor::edit_log_breakpoint);
573 register_action(editor, window, Editor::enable_breakpoint);
574 register_action(editor, window, Editor::disable_breakpoint);
575 }
576
577 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
578 let position_map = layout.position_map.clone();
579 window.on_key_event({
580 let editor = self.editor.clone();
581 move |event: &ModifiersChangedEvent, phase, window, cx| {
582 if phase != DispatchPhase::Bubble {
583 return;
584 }
585 editor.update(cx, |editor, cx| {
586 let inlay_hint_settings = inlay_hint_settings(
587 editor.selections.newest_anchor().head(),
588 &editor.buffer.read(cx).snapshot(cx),
589 cx,
590 );
591
592 if let Some(inlay_modifiers) = inlay_hint_settings
593 .toggle_on_modifiers_press
594 .as_ref()
595 .filter(|modifiers| modifiers.modified())
596 {
597 editor.refresh_inlay_hints(
598 InlayHintRefreshReason::ModifiersChanged(
599 inlay_modifiers == &event.modifiers,
600 ),
601 cx,
602 );
603 }
604
605 if editor.hover_state.focused(window, cx) {
606 return;
607 }
608
609 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
610 })
611 }
612 });
613 }
614
615 fn mouse_left_down(
616 editor: &mut Editor,
617 event: &MouseDownEvent,
618 hovered_hunk: Option<Range<Anchor>>,
619 position_map: &PositionMap,
620 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
621 window: &mut Window,
622 cx: &mut Context<Editor>,
623 ) {
624 if window.default_prevented() {
625 return;
626 }
627
628 let text_hitbox = &position_map.text_hitbox;
629 let gutter_hitbox = &position_map.gutter_hitbox;
630 let point_for_position = position_map.point_for_position(event.position);
631 let mut click_count = event.click_count;
632 let mut modifiers = event.modifiers;
633
634 if let Some(hovered_hunk) = hovered_hunk {
635 editor.toggle_single_diff_hunk(hovered_hunk, cx);
636 cx.notify();
637 return;
638 } else if gutter_hitbox.is_hovered(window) {
639 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
640 } else if !text_hitbox.is_hovered(window) {
641 return;
642 }
643
644 if editor.drag_and_drop_selection_enabled && click_count == 1 {
645 let newest_anchor = editor.selections.newest_anchor();
646 let snapshot = editor.snapshot(window, cx);
647 let selection = newest_anchor.map(|anchor| anchor.to_display_point(&snapshot));
648 if point_for_position.intersects_selection(&selection) {
649 editor.selection_drag_state = SelectionDragState::ReadyToDrag {
650 selection: newest_anchor.clone(),
651 click_position: event.position,
652 mouse_down_time: Instant::now(),
653 };
654 cx.stop_propagation();
655 return;
656 }
657 }
658
659 let is_singleton = editor.buffer().read(cx).is_singleton();
660
661 if click_count == 2 && !is_singleton {
662 match EditorSettings::get_global(cx).double_click_in_multibuffer {
663 DoubleClickInMultibuffer::Select => {
664 // do nothing special on double click, all selection logic is below
665 }
666 DoubleClickInMultibuffer::Open => {
667 if modifiers.alt {
668 // if double click is made with alt, pretend it's a regular double click without opening and alt,
669 // and run the selection logic.
670 modifiers.alt = false;
671 } else {
672 let scroll_position_row =
673 position_map.scroll_pixel_position.y / position_map.line_height;
674 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
675 + position_map.scroll_pixel_position.y)
676 / position_map.line_height)
677 as u32;
678 let multi_buffer_row = position_map
679 .snapshot
680 .display_point_to_point(
681 DisplayPoint::new(DisplayRow(display_row), 0),
682 Bias::Right,
683 )
684 .row;
685 let line_offset_from_top = display_row - scroll_position_row as u32;
686 // if double click is made without alt, open the corresponding excerp
687 editor.open_excerpts_common(
688 Some(JumpData::MultiBufferRow {
689 row: MultiBufferRow(multi_buffer_row),
690 line_offset_from_top,
691 }),
692 false,
693 window,
694 cx,
695 );
696 return;
697 }
698 }
699 }
700 }
701
702 let position = point_for_position.previous_valid;
703 if let Some(mode) = Editor::columnar_selection_mode(&modifiers, cx) {
704 editor.select(
705 SelectPhase::BeginColumnar {
706 position,
707 reset: match mode {
708 ColumnarMode::FromMouse => true,
709 ColumnarMode::FromSelection => false,
710 },
711 mode: mode,
712 goal_column: point_for_position.exact_unclipped.column(),
713 },
714 window,
715 cx,
716 );
717 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
718 {
719 editor.select(
720 SelectPhase::Extend {
721 position,
722 click_count,
723 },
724 window,
725 cx,
726 );
727 } else {
728 editor.select(
729 SelectPhase::Begin {
730 position,
731 add: Editor::multi_cursor_modifier(true, &modifiers, cx),
732 click_count,
733 },
734 window,
735 cx,
736 );
737 }
738 cx.stop_propagation();
739
740 if !is_singleton {
741 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
742 + position_map.scroll_pixel_position.y)
743 / position_map.line_height) as u32;
744 let multi_buffer_row = position_map
745 .snapshot
746 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
747 .row;
748 if line_numbers
749 .get(&MultiBufferRow(multi_buffer_row))
750 .and_then(|line_number| line_number.hitbox.as_ref())
751 .is_some_and(|hitbox| hitbox.contains(&event.position))
752 {
753 let scroll_position_row =
754 position_map.scroll_pixel_position.y / position_map.line_height;
755 let line_offset_from_top = display_row - scroll_position_row as u32;
756
757 editor.open_excerpts_common(
758 Some(JumpData::MultiBufferRow {
759 row: MultiBufferRow(multi_buffer_row),
760 line_offset_from_top,
761 }),
762 modifiers.alt,
763 window,
764 cx,
765 );
766 cx.stop_propagation();
767 }
768 }
769 }
770
771 fn mouse_right_down(
772 editor: &mut Editor,
773 event: &MouseDownEvent,
774 position_map: &PositionMap,
775 window: &mut Window,
776 cx: &mut Context<Editor>,
777 ) {
778 if position_map.gutter_hitbox.is_hovered(window) {
779 let gutter_right_padding = editor.gutter_dimensions.right_padding;
780 let hitbox = &position_map.gutter_hitbox;
781
782 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
783 let point_for_position = position_map.point_for_position(event.position);
784 editor.set_breakpoint_context_menu(
785 point_for_position.previous_valid.row(),
786 None,
787 event.position,
788 window,
789 cx,
790 );
791 }
792 return;
793 }
794
795 if !position_map.text_hitbox.is_hovered(window) {
796 return;
797 }
798
799 let point_for_position = position_map.point_for_position(event.position);
800 mouse_context_menu::deploy_context_menu(
801 editor,
802 Some(event.position),
803 point_for_position.previous_valid,
804 window,
805 cx,
806 );
807 cx.stop_propagation();
808 }
809
810 fn mouse_middle_down(
811 editor: &mut Editor,
812 event: &MouseDownEvent,
813 position_map: &PositionMap,
814 window: &mut Window,
815 cx: &mut Context<Editor>,
816 ) {
817 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
818 return;
819 }
820
821 let point_for_position = position_map.point_for_position(event.position);
822 let position = point_for_position.previous_valid;
823
824 editor.select(
825 SelectPhase::BeginColumnar {
826 position,
827 reset: true,
828 mode: ColumnarMode::FromMouse,
829 goal_column: point_for_position.exact_unclipped.column(),
830 },
831 window,
832 cx,
833 );
834 }
835
836 fn mouse_up(
837 editor: &mut Editor,
838 event: &MouseUpEvent,
839 position_map: &PositionMap,
840 window: &mut Window,
841 cx: &mut Context<Editor>,
842 ) {
843 let text_hitbox = &position_map.text_hitbox;
844 let end_selection = editor.has_pending_selection();
845 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
846 let point_for_position = position_map.point_for_position(event.position);
847
848 match editor.selection_drag_state {
849 SelectionDragState::ReadyToDrag {
850 selection: _,
851 ref click_position,
852 mouse_down_time: _,
853 } => {
854 if event.position == *click_position {
855 editor.select(
856 SelectPhase::Begin {
857 position: point_for_position.previous_valid,
858 add: false,
859 click_count: 1, // ready to drag state only occurs on click count 1
860 },
861 window,
862 cx,
863 );
864 editor.selection_drag_state = SelectionDragState::None;
865 cx.stop_propagation();
866 return;
867 } else {
868 debug_panic!("drag state can never be in ready state after drag")
869 }
870 }
871 SelectionDragState::Dragging { ref selection, .. } => {
872 let snapshot = editor.snapshot(window, cx);
873 let selection_display = selection.map(|anchor| anchor.to_display_point(&snapshot));
874 if !point_for_position.intersects_selection(&selection_display)
875 && text_hitbox.is_hovered(window)
876 {
877 let is_cut = !(cfg!(target_os = "macos") && event.modifiers.alt
878 || cfg!(not(target_os = "macos")) && event.modifiers.control);
879 editor.move_selection_on_drop(
880 &selection.clone(),
881 point_for_position.previous_valid,
882 is_cut,
883 window,
884 cx,
885 );
886 }
887 editor.selection_drag_state = SelectionDragState::None;
888 cx.stop_propagation();
889 cx.notify();
890 return;
891 }
892 _ => {}
893 }
894
895 if end_selection {
896 editor.select(SelectPhase::End, window, cx);
897 }
898
899 if end_selection && pending_nonempty_selections {
900 cx.stop_propagation();
901 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
902 && event.button == MouseButton::Middle
903 {
904 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
905 return;
906 }
907
908 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
909 if EditorSettings::get_global(cx).middle_click_paste {
910 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
911 let point_for_position = position_map.point_for_position(event.position);
912 let position = point_for_position.previous_valid;
913
914 editor.select(
915 SelectPhase::Begin {
916 position,
917 add: false,
918 click_count: 1,
919 },
920 window,
921 cx,
922 );
923 editor.insert(&text, window, cx);
924 }
925 cx.stop_propagation()
926 }
927 }
928 }
929
930 fn click(
931 editor: &mut Editor,
932 event: &ClickEvent,
933 position_map: &PositionMap,
934 window: &mut Window,
935 cx: &mut Context<Editor>,
936 ) {
937 let text_hitbox = &position_map.text_hitbox;
938 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
939
940 let hovered_link_modifier = Editor::multi_cursor_modifier(false, &event.modifiers(), cx);
941
942 if !pending_nonempty_selections && hovered_link_modifier && text_hitbox.is_hovered(window) {
943 let point = position_map.point_for_position(event.up.position);
944 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
945
946 cx.stop_propagation();
947 }
948 }
949
950 fn mouse_dragged(
951 editor: &mut Editor,
952 event: &MouseMoveEvent,
953 position_map: &PositionMap,
954 window: &mut Window,
955 cx: &mut Context<Editor>,
956 ) {
957 if !editor.has_pending_selection()
958 && matches!(editor.selection_drag_state, SelectionDragState::None)
959 {
960 return;
961 }
962
963 let point_for_position = position_map.point_for_position(event.position);
964 let text_hitbox = &position_map.text_hitbox;
965
966 let scroll_delta = {
967 let text_bounds = text_hitbox.bounds;
968 let mut scroll_delta = gpui::Point::<f32>::default();
969 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
970 let top = text_bounds.origin.y + vertical_margin;
971 let bottom = text_bounds.bottom_left().y - vertical_margin;
972 if event.position.y < top {
973 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
974 }
975 if event.position.y > bottom {
976 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
977 }
978
979 // We need horizontal width of text
980 let style = editor.style.clone().unwrap_or_default();
981 let font_id = window.text_system().resolve_font(&style.text.font());
982 let font_size = style.text.font_size.to_pixels(window.rem_size());
983 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
984
985 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
986
987 let scroll_space: Pixels = scroll_margin_x * em_width;
988
989 let left = text_bounds.origin.x + scroll_space;
990 let right = text_bounds.top_right().x - scroll_space;
991
992 if event.position.x < left {
993 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
994 }
995 if event.position.x > right {
996 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
997 }
998 scroll_delta
999 };
1000
1001 if !editor.has_pending_selection() {
1002 let drop_anchor = position_map
1003 .snapshot
1004 .display_point_to_anchor(point_for_position.previous_valid, Bias::Left);
1005 match editor.selection_drag_state {
1006 SelectionDragState::Dragging {
1007 ref mut drop_cursor,
1008 ref mut hide_drop_cursor,
1009 ..
1010 } => {
1011 drop_cursor.start = drop_anchor;
1012 drop_cursor.end = drop_anchor;
1013 *hide_drop_cursor = !text_hitbox.is_hovered(window);
1014 editor.apply_scroll_delta(scroll_delta, window, cx);
1015 cx.notify();
1016 }
1017 SelectionDragState::ReadyToDrag {
1018 ref selection,
1019 ref click_position,
1020 ref mouse_down_time,
1021 } => {
1022 if mouse_down_time.elapsed() >= SELECTION_DRAG_DELAY {
1023 let drop_cursor = Selection {
1024 id: post_inc(&mut editor.selections.next_selection_id),
1025 start: drop_anchor,
1026 end: drop_anchor,
1027 reversed: false,
1028 goal: SelectionGoal::None,
1029 };
1030 editor.selection_drag_state = SelectionDragState::Dragging {
1031 selection: selection.clone(),
1032 drop_cursor,
1033 hide_drop_cursor: false,
1034 };
1035 editor.apply_scroll_delta(scroll_delta, window, cx);
1036 cx.notify();
1037 } else {
1038 let click_point = position_map.point_for_position(*click_position);
1039 editor.selection_drag_state = SelectionDragState::None;
1040 editor.select(
1041 SelectPhase::Begin {
1042 position: click_point.previous_valid,
1043 add: false,
1044 click_count: 1,
1045 },
1046 window,
1047 cx,
1048 );
1049 editor.select(
1050 SelectPhase::Update {
1051 position: point_for_position.previous_valid,
1052 goal_column: point_for_position.exact_unclipped.column(),
1053 scroll_delta,
1054 },
1055 window,
1056 cx,
1057 );
1058 }
1059 }
1060 _ => {}
1061 }
1062 } else {
1063 editor.select(
1064 SelectPhase::Update {
1065 position: point_for_position.previous_valid,
1066 goal_column: point_for_position.exact_unclipped.column(),
1067 scroll_delta,
1068 },
1069 window,
1070 cx,
1071 );
1072 }
1073 }
1074
1075 fn mouse_moved(
1076 editor: &mut Editor,
1077 event: &MouseMoveEvent,
1078 position_map: &PositionMap,
1079 window: &mut Window,
1080 cx: &mut Context<Editor>,
1081 ) {
1082 let text_hitbox = &position_map.text_hitbox;
1083 let gutter_hitbox = &position_map.gutter_hitbox;
1084 let modifiers = event.modifiers;
1085 let text_hovered = text_hitbox.is_hovered(window);
1086 let gutter_hovered = gutter_hitbox.is_hovered(window);
1087 editor.set_gutter_hovered(gutter_hovered, cx);
1088 editor.show_mouse_cursor(cx);
1089
1090 let point_for_position = position_map.point_for_position(event.position);
1091 let valid_point = point_for_position.previous_valid;
1092
1093 let hovered_diff_control = position_map
1094 .diff_hunk_control_bounds
1095 .iter()
1096 .find(|(_, bounds)| bounds.contains(&event.position))
1097 .map(|(row, _)| *row);
1098
1099 let hovered_diff_hunk_row = if let Some(control_row) = hovered_diff_control {
1100 Some(control_row)
1101 } else {
1102 if text_hovered {
1103 let current_row = valid_point.row();
1104 position_map.display_hunks.iter().find_map(|(hunk, _)| {
1105 if let DisplayDiffHunk::Unfolded {
1106 display_row_range, ..
1107 } = hunk
1108 {
1109 if display_row_range.contains(¤t_row) {
1110 Some(display_row_range.start)
1111 } else {
1112 None
1113 }
1114 } else {
1115 None
1116 }
1117 })
1118 } else {
1119 None
1120 }
1121 };
1122
1123 if hovered_diff_hunk_row != editor.hovered_diff_hunk_row {
1124 editor.hovered_diff_hunk_row = hovered_diff_hunk_row;
1125 cx.notify();
1126 }
1127
1128 if let Some((bounds, blame_entry)) = &position_map.inline_blame_bounds {
1129 let mouse_over_inline_blame = bounds.contains(&event.position);
1130 let mouse_over_popover = editor
1131 .inline_blame_popover
1132 .as_ref()
1133 .and_then(|state| state.popover_bounds)
1134 .map_or(false, |bounds| bounds.contains(&event.position));
1135
1136 if mouse_over_inline_blame || mouse_over_popover {
1137 editor.show_blame_popover(&blame_entry, event.position, cx);
1138 } else {
1139 editor.hide_blame_popover(cx);
1140 }
1141 } else {
1142 editor.hide_blame_popover(cx);
1143 }
1144
1145 let breakpoint_indicator = if gutter_hovered {
1146 let buffer_anchor = position_map
1147 .snapshot
1148 .display_point_to_anchor(valid_point, Bias::Left);
1149
1150 if let Some((buffer_snapshot, file)) = position_map
1151 .snapshot
1152 .buffer_snapshot
1153 .buffer_for_excerpt(buffer_anchor.excerpt_id)
1154 .and_then(|buffer| buffer.file().map(|file| (buffer, file)))
1155 {
1156 let as_point = text::ToPoint::to_point(&buffer_anchor.text_anchor, buffer_snapshot);
1157
1158 let is_visible = editor
1159 .gutter_breakpoint_indicator
1160 .0
1161 .map_or(false, |indicator| indicator.is_active);
1162
1163 let has_existing_breakpoint =
1164 editor.breakpoint_store.as_ref().map_or(false, |store| {
1165 let Some(project) = &editor.project else {
1166 return false;
1167 };
1168 let Some(abs_path) = project.read(cx).absolute_path(
1169 &ProjectPath {
1170 path: file.path().clone(),
1171 worktree_id: file.worktree_id(cx),
1172 },
1173 cx,
1174 ) else {
1175 return false;
1176 };
1177 store
1178 .read(cx)
1179 .breakpoint_at_row(&abs_path, as_point.row, cx)
1180 .is_some()
1181 });
1182
1183 if !is_visible {
1184 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
1185 cx.spawn(async move |this, cx| {
1186 cx.background_executor()
1187 .timer(Duration::from_millis(200))
1188 .await;
1189
1190 this.update(cx, |this, cx| {
1191 if let Some(indicator) = this.gutter_breakpoint_indicator.0.as_mut()
1192 {
1193 indicator.is_active = true;
1194 cx.notify();
1195 }
1196 })
1197 .ok();
1198 })
1199 });
1200 }
1201
1202 Some(PhantomBreakpointIndicator {
1203 display_row: valid_point.row(),
1204 is_active: is_visible,
1205 collides_with_existing_breakpoint: has_existing_breakpoint,
1206 })
1207 } else {
1208 editor.gutter_breakpoint_indicator.1 = None;
1209 None
1210 }
1211 } else {
1212 editor.gutter_breakpoint_indicator.1 = None;
1213 None
1214 };
1215
1216 if &breakpoint_indicator != &editor.gutter_breakpoint_indicator.0 {
1217 editor.gutter_breakpoint_indicator.0 = breakpoint_indicator;
1218 cx.notify();
1219 }
1220
1221 // Don't trigger hover popover if mouse is hovering over context menu
1222 if text_hovered {
1223 editor.update_hovered_link(
1224 point_for_position,
1225 &position_map.snapshot,
1226 modifiers,
1227 window,
1228 cx,
1229 );
1230
1231 if let Some(point) = point_for_position.as_valid() {
1232 let anchor = position_map
1233 .snapshot
1234 .buffer_snapshot
1235 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1236 hover_at(editor, Some(anchor), window, cx);
1237 Self::update_visible_cursor(editor, point, position_map, window, cx);
1238 } else {
1239 hover_at(editor, None, window, cx);
1240 }
1241 } else {
1242 editor.hide_hovered_link(cx);
1243 hover_at(editor, None, window, cx);
1244 }
1245 }
1246
1247 fn update_visible_cursor(
1248 editor: &mut Editor,
1249 point: DisplayPoint,
1250 position_map: &PositionMap,
1251 window: &mut Window,
1252 cx: &mut Context<Editor>,
1253 ) {
1254 let snapshot = &position_map.snapshot;
1255 let Some(hub) = editor.collaboration_hub() else {
1256 return;
1257 };
1258 let start = snapshot.display_snapshot.clip_point(
1259 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1260 Bias::Left,
1261 );
1262 let end = snapshot.display_snapshot.clip_point(
1263 DisplayPoint::new(
1264 point.row(),
1265 (point.column() + 1).min(snapshot.line_len(point.row())),
1266 ),
1267 Bias::Right,
1268 );
1269
1270 let range = snapshot
1271 .buffer_snapshot
1272 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
1273 ..snapshot
1274 .buffer_snapshot
1275 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
1276
1277 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1278 return;
1279 };
1280 let key = crate::HoveredCursor {
1281 replica_id: selection.replica_id,
1282 selection_id: selection.selection.id,
1283 };
1284 editor.hovered_cursors.insert(
1285 key.clone(),
1286 cx.spawn_in(window, async move |editor, cx| {
1287 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1288 editor
1289 .update(cx, |editor, cx| {
1290 editor.hovered_cursors.remove(&key);
1291 cx.notify();
1292 })
1293 .ok();
1294 }),
1295 );
1296 cx.notify()
1297 }
1298
1299 fn layout_selections(
1300 &self,
1301 start_anchor: Anchor,
1302 end_anchor: Anchor,
1303 local_selections: &[Selection<Point>],
1304 snapshot: &EditorSnapshot,
1305 start_row: DisplayRow,
1306 end_row: DisplayRow,
1307 window: &mut Window,
1308 cx: &mut App,
1309 ) -> (
1310 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1311 BTreeMap<DisplayRow, LineHighlightSpec>,
1312 Option<DisplayPoint>,
1313 ) {
1314 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1315 let mut active_rows = BTreeMap::new();
1316 let mut newest_selection_head = None;
1317
1318 let Some(editor_with_selections) = self.editor_with_selections(cx) else {
1319 return (selections, active_rows, newest_selection_head);
1320 };
1321
1322 editor_with_selections.update(cx, |editor, cx| {
1323 if editor.show_local_selections {
1324 let mut layouts = Vec::new();
1325 let newest = editor.selections.newest(cx);
1326 for selection in local_selections.iter().cloned() {
1327 let is_empty = selection.start == selection.end;
1328 let is_newest = selection == newest;
1329
1330 let layout = SelectionLayout::new(
1331 selection,
1332 editor.selections.line_mode,
1333 editor.cursor_shape,
1334 &snapshot.display_snapshot,
1335 is_newest,
1336 editor.leader_id.is_none(),
1337 None,
1338 );
1339 if is_newest {
1340 newest_selection_head = Some(layout.head);
1341 }
1342
1343 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1344 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1345 {
1346 let contains_non_empty_selection = active_rows
1347 .entry(DisplayRow(row))
1348 .or_insert_with(LineHighlightSpec::default);
1349 contains_non_empty_selection.selection |= !is_empty;
1350 }
1351 layouts.push(layout);
1352 }
1353
1354 let player = editor.current_user_player_color(cx);
1355 selections.push((player, layouts));
1356
1357 if let SelectionDragState::Dragging {
1358 ref selection,
1359 ref drop_cursor,
1360 ref hide_drop_cursor,
1361 } = editor.selection_drag_state
1362 {
1363 if !hide_drop_cursor
1364 && (drop_cursor
1365 .start
1366 .cmp(&selection.start, &snapshot.buffer_snapshot)
1367 .eq(&Ordering::Less)
1368 || drop_cursor
1369 .end
1370 .cmp(&selection.end, &snapshot.buffer_snapshot)
1371 .eq(&Ordering::Greater))
1372 {
1373 let drag_cursor_layout = SelectionLayout::new(
1374 drop_cursor.clone(),
1375 false,
1376 CursorShape::Bar,
1377 &snapshot.display_snapshot,
1378 false,
1379 false,
1380 None,
1381 );
1382 let absent_color = cx.theme().players().absent();
1383 selections.push((absent_color, vec![drag_cursor_layout]));
1384 }
1385 }
1386 }
1387
1388 if let Some(collaboration_hub) = &editor.collaboration_hub {
1389 // When following someone, render the local selections in their color.
1390 if let Some(leader_id) = editor.leader_id {
1391 match leader_id {
1392 CollaboratorId::PeerId(peer_id) => {
1393 if let Some(collaborator) =
1394 collaboration_hub.collaborators(cx).get(&peer_id)
1395 {
1396 if let Some(participant_index) = collaboration_hub
1397 .user_participant_indices(cx)
1398 .get(&collaborator.user_id)
1399 {
1400 if let Some((local_selection_style, _)) = selections.first_mut()
1401 {
1402 *local_selection_style = cx
1403 .theme()
1404 .players()
1405 .color_for_participant(participant_index.0);
1406 }
1407 }
1408 }
1409 }
1410 CollaboratorId::Agent => {
1411 if let Some((local_selection_style, _)) = selections.first_mut() {
1412 *local_selection_style = cx.theme().players().agent();
1413 }
1414 }
1415 }
1416 }
1417
1418 let mut remote_selections = HashMap::default();
1419 for selection in snapshot.remote_selections_in_range(
1420 &(start_anchor..end_anchor),
1421 collaboration_hub.as_ref(),
1422 cx,
1423 ) {
1424 // Don't re-render the leader's selections, since the local selections
1425 // match theirs.
1426 if Some(selection.collaborator_id) == editor.leader_id {
1427 continue;
1428 }
1429 let key = HoveredCursor {
1430 replica_id: selection.replica_id,
1431 selection_id: selection.selection.id,
1432 };
1433
1434 let is_shown =
1435 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1436
1437 remote_selections
1438 .entry(selection.replica_id)
1439 .or_insert((selection.color, Vec::new()))
1440 .1
1441 .push(SelectionLayout::new(
1442 selection.selection,
1443 selection.line_mode,
1444 selection.cursor_shape,
1445 &snapshot.display_snapshot,
1446 false,
1447 false,
1448 if is_shown { selection.user_name } else { None },
1449 ));
1450 }
1451
1452 selections.extend(remote_selections.into_values());
1453 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1454 let layouts = snapshot
1455 .buffer_snapshot
1456 .selections_in_range(&(start_anchor..end_anchor), true)
1457 .map(move |(_, line_mode, cursor_shape, selection)| {
1458 SelectionLayout::new(
1459 selection,
1460 line_mode,
1461 cursor_shape,
1462 &snapshot.display_snapshot,
1463 false,
1464 false,
1465 None,
1466 )
1467 })
1468 .collect::<Vec<_>>();
1469 let player = editor.current_user_player_color(cx);
1470 selections.push((player, layouts));
1471 }
1472 });
1473 (selections, active_rows, newest_selection_head)
1474 }
1475
1476 fn collect_cursors(
1477 &self,
1478 snapshot: &EditorSnapshot,
1479 cx: &mut App,
1480 ) -> Vec<(DisplayPoint, Hsla)> {
1481 let editor = self.editor.read(cx);
1482 let mut cursors = Vec::new();
1483 let mut skip_local = false;
1484 let mut add_cursor = |anchor: Anchor, color| {
1485 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1486 };
1487 // Remote cursors
1488 if let Some(collaboration_hub) = &editor.collaboration_hub {
1489 for remote_selection in snapshot.remote_selections_in_range(
1490 &(Anchor::min()..Anchor::max()),
1491 collaboration_hub.deref(),
1492 cx,
1493 ) {
1494 add_cursor(
1495 remote_selection.selection.head(),
1496 remote_selection.color.cursor,
1497 );
1498 if Some(remote_selection.collaborator_id) == editor.leader_id {
1499 skip_local = true;
1500 }
1501 }
1502 }
1503 // Local cursors
1504 if !skip_local {
1505 let color = cx.theme().players().local().cursor;
1506 editor.selections.disjoint.iter().for_each(|selection| {
1507 add_cursor(selection.head(), color);
1508 });
1509 if let Some(ref selection) = editor.selections.pending_anchor() {
1510 add_cursor(selection.head(), color);
1511 }
1512 }
1513 cursors
1514 }
1515
1516 fn layout_visible_cursors(
1517 &self,
1518 snapshot: &EditorSnapshot,
1519 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1520 row_block_types: &HashMap<DisplayRow, bool>,
1521 visible_display_row_range: Range<DisplayRow>,
1522 line_layouts: &[LineWithInvisibles],
1523 text_hitbox: &Hitbox,
1524 content_origin: gpui::Point<Pixels>,
1525 scroll_position: gpui::Point<f32>,
1526 scroll_pixel_position: gpui::Point<Pixels>,
1527 line_height: Pixels,
1528 em_width: Pixels,
1529 em_advance: Pixels,
1530 autoscroll_containing_element: bool,
1531 window: &mut Window,
1532 cx: &mut App,
1533 ) -> Vec<CursorLayout> {
1534 let mut autoscroll_bounds = None;
1535 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1536 let mut cursors = Vec::new();
1537
1538 let show_local_cursors = editor.show_local_cursors(window, cx);
1539
1540 for (player_color, selections) in selections {
1541 for selection in selections {
1542 let cursor_position = selection.head;
1543
1544 let in_range = visible_display_row_range.contains(&cursor_position.row());
1545 if (selection.is_local && !show_local_cursors)
1546 || !in_range
1547 || row_block_types.get(&cursor_position.row()) == Some(&true)
1548 {
1549 continue;
1550 }
1551
1552 let cursor_row_layout = &line_layouts
1553 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1554 let cursor_column = cursor_position.column() as usize;
1555
1556 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1557 let mut block_width =
1558 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1559 if block_width == Pixels::ZERO {
1560 block_width = em_advance;
1561 }
1562 let block_text = if let CursorShape::Block = selection.cursor_shape {
1563 snapshot
1564 .grapheme_at(cursor_position)
1565 .or_else(|| {
1566 if snapshot.is_empty() {
1567 snapshot.placeholder_text().and_then(|s| {
1568 s.graphemes(true).next().map(|s| s.to_string().into())
1569 })
1570 } else {
1571 None
1572 }
1573 })
1574 .map(|text| {
1575 let len = text.len();
1576
1577 let font = cursor_row_layout
1578 .font_id_for_index(cursor_column)
1579 .and_then(|cursor_font_id| {
1580 window.text_system().get_font_for_id(cursor_font_id)
1581 })
1582 .unwrap_or(self.style.text.font());
1583
1584 // Invert the text color for the block cursor. Ensure that the text
1585 // color is opaque enough to be visible against the background color.
1586 //
1587 // 0.75 is an arbitrary threshold to determine if the background color is
1588 // opaque enough to use as a text color.
1589 //
1590 // TODO: In the future we should ensure themes have a `text_inverse` color.
1591 let color = if cx.theme().colors().editor_background.a < 0.75 {
1592 match cx.theme().appearance {
1593 Appearance::Dark => Hsla::black(),
1594 Appearance::Light => Hsla::white(),
1595 }
1596 } else {
1597 cx.theme().colors().editor_background
1598 };
1599
1600 window.text_system().shape_line(
1601 text,
1602 cursor_row_layout.font_size,
1603 &[TextRun {
1604 len,
1605 font,
1606 color,
1607 background_color: None,
1608 strikethrough: None,
1609 underline: None,
1610 }],
1611 )
1612 })
1613 } else {
1614 None
1615 };
1616
1617 let x = cursor_character_x - scroll_pixel_position.x;
1618 let y = (cursor_position.row().as_f32()
1619 - scroll_pixel_position.y / line_height)
1620 * line_height;
1621 if selection.is_newest {
1622 editor.pixel_position_of_newest_cursor = Some(point(
1623 text_hitbox.origin.x + x + block_width / 2.,
1624 text_hitbox.origin.y + y + line_height / 2.,
1625 ));
1626
1627 if autoscroll_containing_element {
1628 let top = text_hitbox.origin.y
1629 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1630 * line_height;
1631 let left = text_hitbox.origin.x
1632 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1633 .max(0.)
1634 * em_width;
1635
1636 let bottom = text_hitbox.origin.y
1637 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1638 * line_height;
1639 let right = text_hitbox.origin.x
1640 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1641 * em_width;
1642
1643 autoscroll_bounds =
1644 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1645 }
1646 }
1647
1648 let mut cursor = CursorLayout {
1649 color: player_color.cursor,
1650 block_width,
1651 origin: point(x, y),
1652 line_height,
1653 shape: selection.cursor_shape,
1654 block_text,
1655 cursor_name: None,
1656 };
1657 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1658 string: name,
1659 color: self.style.background,
1660 is_top_row: cursor_position.row().0 == 0,
1661 });
1662 cursor.layout(content_origin, cursor_name, window, cx);
1663 cursors.push(cursor);
1664 }
1665 }
1666
1667 cursors
1668 });
1669
1670 if let Some(bounds) = autoscroll_bounds {
1671 window.request_autoscroll(bounds);
1672 }
1673
1674 cursor_layouts
1675 }
1676
1677 fn layout_scrollbars(
1678 &self,
1679 snapshot: &EditorSnapshot,
1680 scrollbar_layout_information: &ScrollbarLayoutInformation,
1681 content_offset: gpui::Point<Pixels>,
1682 scroll_position: gpui::Point<f32>,
1683 non_visible_cursors: bool,
1684 right_margin: Pixels,
1685 editor_width: Pixels,
1686 window: &mut Window,
1687 cx: &mut App,
1688 ) -> Option<EditorScrollbars> {
1689 let show_scrollbars = self.editor.read(cx).show_scrollbars;
1690 if (!show_scrollbars.horizontal && !show_scrollbars.vertical)
1691 || self.style.scrollbar_width.is_zero()
1692 {
1693 return None;
1694 }
1695
1696 // If a drag took place after we started dragging the scrollbar,
1697 // cancel the scrollbar drag.
1698 if cx.has_active_drag() {
1699 self.editor.update(cx, |editor, cx| {
1700 editor.scroll_manager.reset_scrollbar_state(cx)
1701 });
1702 }
1703
1704 let editor_settings = EditorSettings::get_global(cx);
1705 let scrollbar_settings = editor_settings.scrollbar;
1706 let show_scrollbars = match scrollbar_settings.show {
1707 ShowScrollbar::Auto => {
1708 let editor = self.editor.read(cx);
1709 let is_singleton = editor.is_singleton(cx);
1710 // Git
1711 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1712 ||
1713 // Buffer Search Results
1714 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1715 ||
1716 // Selected Text Occurrences
1717 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1718 ||
1719 // Selected Symbol Occurrences
1720 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1721 ||
1722 // Diagnostics
1723 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1724 ||
1725 // Cursors out of sight
1726 non_visible_cursors
1727 ||
1728 // Scrollmanager
1729 editor.scroll_manager.scrollbars_visible()
1730 }
1731 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1732 ShowScrollbar::Always => true,
1733 ShowScrollbar::Never => return None,
1734 };
1735
1736 // The horizontal scrollbar is usually slightly offset to align nicely with
1737 // indent guides. However, this offset is not needed if indent guides are
1738 // disabled for the current editor.
1739 let content_offset = self
1740 .editor
1741 .read(cx)
1742 .show_indent_guides
1743 .is_none_or(|should_show| should_show)
1744 .then_some(content_offset)
1745 .unwrap_or_default();
1746
1747 Some(EditorScrollbars::from_scrollbar_axes(
1748 ScrollbarAxes {
1749 horizontal: scrollbar_settings.axes.horizontal
1750 && self.editor.read(cx).show_scrollbars.horizontal,
1751 vertical: scrollbar_settings.axes.vertical
1752 && self.editor.read(cx).show_scrollbars.vertical,
1753 },
1754 scrollbar_layout_information,
1755 content_offset,
1756 scroll_position,
1757 self.style.scrollbar_width,
1758 right_margin,
1759 editor_width,
1760 show_scrollbars,
1761 self.editor.read(cx).scroll_manager.active_scrollbar_state(),
1762 window,
1763 ))
1764 }
1765
1766 fn layout_minimap(
1767 &self,
1768 snapshot: &EditorSnapshot,
1769 minimap_width: Pixels,
1770 scroll_position: gpui::Point<f32>,
1771 scrollbar_layout_information: &ScrollbarLayoutInformation,
1772 scrollbar_layout: Option<&EditorScrollbars>,
1773 window: &mut Window,
1774 cx: &mut App,
1775 ) -> Option<MinimapLayout> {
1776 let minimap_editor = self.editor.read(cx).minimap().cloned()?;
1777
1778 let minimap_settings = EditorSettings::get_global(cx).minimap;
1779
1780 if minimap_settings.on_active_editor() {
1781 let active_editor = self.editor.read(cx).workspace().and_then(|ws| {
1782 ws.read(cx)
1783 .active_pane()
1784 .read(cx)
1785 .active_item()
1786 .and_then(|i| i.act_as::<Editor>(cx))
1787 });
1788 if active_editor.is_some_and(|e| e != self.editor) {
1789 return None;
1790 }
1791 }
1792
1793 if !snapshot.mode.is_full()
1794 || minimap_width.is_zero()
1795 || matches!(
1796 minimap_settings.show,
1797 ShowMinimap::Auto if scrollbar_layout.is_none_or(|layout| !layout.visible)
1798 )
1799 {
1800 return None;
1801 }
1802
1803 const MINIMAP_AXIS: ScrollbarAxis = ScrollbarAxis::Vertical;
1804
1805 let ScrollbarLayoutInformation {
1806 editor_bounds,
1807 scroll_range,
1808 glyph_grid_cell,
1809 } = scrollbar_layout_information;
1810
1811 let line_height = glyph_grid_cell.height;
1812 let scroll_position = scroll_position.along(MINIMAP_AXIS);
1813
1814 let top_right_anchor = scrollbar_layout
1815 .and_then(|layout| layout.vertical.as_ref())
1816 .map(|vertical_scrollbar| vertical_scrollbar.hitbox.origin)
1817 .unwrap_or_else(|| editor_bounds.top_right());
1818
1819 let thumb_state = self
1820 .editor
1821 .read_with(cx, |editor, _| editor.scroll_manager.minimap_thumb_state());
1822
1823 let show_thumb = match minimap_settings.thumb {
1824 MinimapThumb::Always => true,
1825 MinimapThumb::Hover => thumb_state.is_some(),
1826 };
1827
1828 let minimap_bounds = Bounds::from_corner_and_size(
1829 Corner::TopRight,
1830 top_right_anchor,
1831 size(minimap_width, editor_bounds.size.height),
1832 );
1833 let minimap_line_height = self.get_minimap_line_height(
1834 minimap_editor
1835 .read(cx)
1836 .text_style_refinement
1837 .as_ref()
1838 .and_then(|refinement| refinement.font_size)
1839 .unwrap_or(MINIMAP_FONT_SIZE),
1840 window,
1841 cx,
1842 );
1843 let minimap_height = minimap_bounds.size.height;
1844
1845 let visible_editor_lines = editor_bounds.size.height / line_height;
1846 let total_editor_lines = scroll_range.height / line_height;
1847 let minimap_lines = minimap_height / minimap_line_height;
1848
1849 let minimap_scroll_top = MinimapLayout::calculate_minimap_top_offset(
1850 total_editor_lines,
1851 visible_editor_lines,
1852 minimap_lines,
1853 scroll_position,
1854 );
1855
1856 let layout = ScrollbarLayout::for_minimap(
1857 window.insert_hitbox(minimap_bounds, HitboxBehavior::Normal),
1858 visible_editor_lines,
1859 total_editor_lines,
1860 minimap_line_height,
1861 scroll_position,
1862 minimap_scroll_top,
1863 show_thumb,
1864 )
1865 .with_thumb_state(thumb_state);
1866
1867 minimap_editor.update(cx, |editor, cx| {
1868 editor.set_scroll_position(point(0., minimap_scroll_top), window, cx)
1869 });
1870
1871 // Required for the drop shadow to be visible
1872 const PADDING_OFFSET: Pixels = px(4.);
1873
1874 let mut minimap = div()
1875 .size_full()
1876 .shadow_sm()
1877 .px(PADDING_OFFSET)
1878 .child(minimap_editor)
1879 .into_any_element();
1880
1881 let extended_bounds = minimap_bounds.extend(Edges {
1882 right: PADDING_OFFSET,
1883 left: PADDING_OFFSET,
1884 ..Default::default()
1885 });
1886 minimap.layout_as_root(extended_bounds.size.into(), window, cx);
1887 window.with_absolute_element_offset(extended_bounds.origin, |window| {
1888 minimap.prepaint(window, cx)
1889 });
1890
1891 Some(MinimapLayout {
1892 minimap,
1893 thumb_layout: layout,
1894 thumb_border_style: minimap_settings.thumb_border,
1895 minimap_line_height,
1896 minimap_scroll_top,
1897 max_scroll_top: total_editor_lines,
1898 })
1899 }
1900
1901 fn get_minimap_line_height(
1902 &self,
1903 font_size: AbsoluteLength,
1904 window: &mut Window,
1905 cx: &mut App,
1906 ) -> Pixels {
1907 let rem_size = self.rem_size(cx).unwrap_or(window.rem_size());
1908 let mut text_style = self.style.text.clone();
1909 text_style.font_size = font_size;
1910 text_style.line_height_in_pixels(rem_size)
1911 }
1912
1913 fn get_minimap_width(
1914 &self,
1915 minimap_settings: &Minimap,
1916 scrollbars_shown: bool,
1917 text_width: Pixels,
1918 em_width: Pixels,
1919 font_size: Pixels,
1920 rem_size: Pixels,
1921 cx: &App,
1922 ) -> Option<Pixels> {
1923 if minimap_settings.show == ShowMinimap::Auto && !scrollbars_shown {
1924 return None;
1925 }
1926
1927 let minimap_font_size = self.editor.read_with(cx, |editor, cx| {
1928 editor.minimap().map(|minimap_editor| {
1929 minimap_editor
1930 .read(cx)
1931 .text_style_refinement
1932 .as_ref()
1933 .and_then(|refinement| refinement.font_size)
1934 .unwrap_or(MINIMAP_FONT_SIZE)
1935 })
1936 })?;
1937
1938 let minimap_em_width = em_width * (minimap_font_size.to_pixels(rem_size) / font_size);
1939
1940 let minimap_width = (text_width * MinimapLayout::MINIMAP_WIDTH_PCT)
1941 .min(minimap_em_width * minimap_settings.max_width_columns.get() as f32);
1942
1943 (minimap_width >= minimap_em_width * MinimapLayout::MINIMAP_MIN_WIDTH_COLUMNS)
1944 .then_some(minimap_width)
1945 }
1946
1947 fn prepaint_crease_toggles(
1948 &self,
1949 crease_toggles: &mut [Option<AnyElement>],
1950 line_height: Pixels,
1951 gutter_dimensions: &GutterDimensions,
1952 gutter_settings: crate::editor_settings::Gutter,
1953 scroll_pixel_position: gpui::Point<Pixels>,
1954 gutter_hitbox: &Hitbox,
1955 window: &mut Window,
1956 cx: &mut App,
1957 ) {
1958 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1959 if let Some(crease_toggle) = crease_toggle {
1960 debug_assert!(gutter_settings.folds);
1961 let available_space = size(
1962 AvailableSpace::MinContent,
1963 AvailableSpace::Definite(line_height * 0.55),
1964 );
1965 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1966
1967 let position = point(
1968 gutter_dimensions.width - gutter_dimensions.right_padding,
1969 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1970 );
1971 let centering_offset = point(
1972 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1973 (line_height - crease_toggle_size.height) / 2.,
1974 );
1975 let origin = gutter_hitbox.origin + position + centering_offset;
1976 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1977 }
1978 }
1979 }
1980
1981 fn prepaint_expand_toggles(
1982 &self,
1983 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
1984 window: &mut Window,
1985 cx: &mut App,
1986 ) {
1987 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
1988 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1989 expand_toggle.layout_as_root(available_space, window, cx);
1990 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
1991 }
1992 }
1993
1994 fn prepaint_crease_trailers(
1995 &self,
1996 trailers: Vec<Option<AnyElement>>,
1997 lines: &[LineWithInvisibles],
1998 line_height: Pixels,
1999 content_origin: gpui::Point<Pixels>,
2000 scroll_pixel_position: gpui::Point<Pixels>,
2001 em_width: Pixels,
2002 window: &mut Window,
2003 cx: &mut App,
2004 ) -> Vec<Option<CreaseTrailerLayout>> {
2005 trailers
2006 .into_iter()
2007 .enumerate()
2008 .map(|(ix, element)| {
2009 let mut element = element?;
2010 let available_space = size(
2011 AvailableSpace::MinContent,
2012 AvailableSpace::Definite(line_height),
2013 );
2014 let size = element.layout_as_root(available_space, window, cx);
2015
2016 let line = &lines[ix];
2017 let padding = if line.width == Pixels::ZERO {
2018 Pixels::ZERO
2019 } else {
2020 4. * em_width
2021 };
2022 let position = point(
2023 scroll_pixel_position.x + line.width + padding,
2024 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
2025 );
2026 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
2027 let origin = content_origin + position + centering_offset;
2028 element.prepaint_as_root(origin, available_space, window, cx);
2029 Some(CreaseTrailerLayout {
2030 element,
2031 bounds: Bounds::new(origin, size),
2032 })
2033 })
2034 .collect()
2035 }
2036
2037 // Folds contained in a hunk are ignored apart from shrinking visual size
2038 // If a fold contains any hunks then that fold line is marked as modified
2039 fn layout_gutter_diff_hunks(
2040 &self,
2041 line_height: Pixels,
2042 gutter_hitbox: &Hitbox,
2043 display_rows: Range<DisplayRow>,
2044 snapshot: &EditorSnapshot,
2045 window: &mut Window,
2046 cx: &mut App,
2047 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
2048 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
2049 let mut display_hunks = snapshot
2050 .display_diff_hunks_for_rows(display_rows, folded_buffers)
2051 .map(|hunk| (hunk, None))
2052 .collect::<Vec<_>>();
2053 let git_gutter_setting = ProjectSettings::get_global(cx)
2054 .git
2055 .git_gutter
2056 .unwrap_or_default();
2057 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
2058 for (hunk, hitbox) in &mut display_hunks {
2059 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
2060 let hunk_bounds =
2061 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
2062 *hitbox = Some(window.insert_hitbox(hunk_bounds, HitboxBehavior::BlockMouse));
2063 }
2064 }
2065 }
2066
2067 display_hunks
2068 }
2069
2070 fn layout_inline_diagnostics(
2071 &self,
2072 line_layouts: &[LineWithInvisibles],
2073 crease_trailers: &[Option<CreaseTrailerLayout>],
2074 row_block_types: &HashMap<DisplayRow, bool>,
2075 content_origin: gpui::Point<Pixels>,
2076 scroll_pixel_position: gpui::Point<Pixels>,
2077 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
2078 start_row: DisplayRow,
2079 end_row: DisplayRow,
2080 line_height: Pixels,
2081 em_width: Pixels,
2082 style: &EditorStyle,
2083 window: &mut Window,
2084 cx: &mut App,
2085 ) -> HashMap<DisplayRow, AnyElement> {
2086 if self.editor.read(cx).mode().is_minimap() {
2087 return HashMap::default();
2088 }
2089
2090 let max_severity = match ProjectSettings::get_global(cx)
2091 .diagnostics
2092 .inline
2093 .max_severity
2094 .unwrap_or_else(|| self.editor.read(cx).diagnostics_max_severity)
2095 .into_lsp()
2096 {
2097 Some(max_severity) => max_severity,
2098 None => return HashMap::default(),
2099 };
2100
2101 let active_diagnostics_group =
2102 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
2103 Some(group.group_id)
2104 } else {
2105 None
2106 };
2107
2108 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
2109 let snapshot = editor.snapshot(window, cx);
2110 editor
2111 .inline_diagnostics
2112 .iter()
2113 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
2114 .filter(|(_, diagnostic)| match active_diagnostics_group {
2115 Some(active_diagnostics_group) => {
2116 // Active diagnostics are all shown in the editor already, no need to display them inline
2117 diagnostic.group_id != active_diagnostics_group
2118 }
2119 None => true,
2120 })
2121 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
2122 .skip_while(|(point, _)| point.row() < start_row)
2123 .take_while(|(point, _)| point.row() < end_row)
2124 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
2125 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
2126 acc.entry(point.row())
2127 .or_insert_with(Vec::new)
2128 .push(diagnostic);
2129 acc
2130 })
2131 });
2132
2133 if diagnostics_by_rows.is_empty() {
2134 return HashMap::default();
2135 }
2136
2137 let severity_to_color = |sev: &lsp::DiagnosticSeverity| match sev {
2138 &lsp::DiagnosticSeverity::ERROR => Color::Error,
2139 &lsp::DiagnosticSeverity::WARNING => Color::Warning,
2140 &lsp::DiagnosticSeverity::INFORMATION => Color::Info,
2141 &lsp::DiagnosticSeverity::HINT => Color::Hint,
2142 _ => Color::Error,
2143 };
2144
2145 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
2146 let min_x = ProjectSettings::get_global(cx)
2147 .diagnostics
2148 .inline
2149 .min_column as f32
2150 * em_width;
2151
2152 let mut elements = HashMap::default();
2153 for (row, mut diagnostics) in diagnostics_by_rows {
2154 diagnostics.sort_by_key(|diagnostic| {
2155 (
2156 diagnostic.severity,
2157 std::cmp::Reverse(diagnostic.is_primary),
2158 diagnostic.start.row,
2159 diagnostic.start.column,
2160 )
2161 });
2162
2163 let Some(diagnostic_to_render) = diagnostics
2164 .iter()
2165 .find(|diagnostic| diagnostic.is_primary)
2166 .or_else(|| diagnostics.first())
2167 else {
2168 continue;
2169 };
2170
2171 let pos_y = content_origin.y
2172 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
2173
2174 let window_ix = row.0.saturating_sub(start_row.0) as usize;
2175 let pos_x = {
2176 let crease_trailer_layout = &crease_trailers[window_ix];
2177 let line_layout = &line_layouts[window_ix];
2178
2179 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
2180 crease_trailer.bounds.right()
2181 } else {
2182 content_origin.x - scroll_pixel_position.x + line_layout.width
2183 };
2184
2185 let padded_line = line_end + padding;
2186 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
2187
2188 cmp::max(padded_line, min_start)
2189 };
2190
2191 let behind_inline_completion_popover = inline_completion_popover_origin
2192 .as_ref()
2193 .map_or(false, |inline_completion_popover_origin| {
2194 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
2195 });
2196 let opacity = if behind_inline_completion_popover {
2197 0.5
2198 } else {
2199 1.0
2200 };
2201
2202 let mut element = h_flex()
2203 .id(("diagnostic", row.0))
2204 .h(line_height)
2205 .w_full()
2206 .px_1()
2207 .rounded_xs()
2208 .opacity(opacity)
2209 .bg(severity_to_color(&diagnostic_to_render.severity)
2210 .color(cx)
2211 .opacity(0.05))
2212 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
2213 .text_sm()
2214 .font_family(style.text.font().family)
2215 .child(diagnostic_to_render.message.clone())
2216 .into_any();
2217
2218 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
2219
2220 elements.insert(row, element);
2221 }
2222
2223 elements
2224 }
2225
2226 fn layout_inline_code_actions(
2227 &self,
2228 display_point: DisplayPoint,
2229 content_origin: gpui::Point<Pixels>,
2230 scroll_pixel_position: gpui::Point<Pixels>,
2231 line_height: Pixels,
2232 snapshot: &EditorSnapshot,
2233 window: &mut Window,
2234 cx: &mut App,
2235 ) -> Option<AnyElement> {
2236 if !snapshot
2237 .show_code_actions
2238 .unwrap_or(EditorSettings::get_global(cx).inline_code_actions)
2239 {
2240 return None;
2241 }
2242
2243 let icon_size = ui::IconSize::XSmall;
2244 let mut button = self.editor.update(cx, |editor, cx| {
2245 editor.available_code_actions.as_ref()?;
2246 let active = editor
2247 .context_menu
2248 .borrow()
2249 .as_ref()
2250 .and_then(|menu| {
2251 if let crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2252 deployed_from,
2253 ..
2254 }) = menu
2255 {
2256 deployed_from.as_ref()
2257 } else {
2258 None
2259 }
2260 })
2261 .map_or(false, |source| {
2262 matches!(source, CodeActionSource::Indicator(..))
2263 });
2264 Some(editor.render_inline_code_actions(icon_size, display_point.row(), active, cx))
2265 })?;
2266
2267 let buffer_point = display_point.to_point(&snapshot.display_snapshot);
2268
2269 // do not show code action for folded line
2270 if snapshot.is_line_folded(MultiBufferRow(buffer_point.row)) {
2271 return None;
2272 }
2273
2274 // do not show code action for blank line with cursor
2275 let line_indent = snapshot
2276 .display_snapshot
2277 .buffer_snapshot
2278 .line_indent_for_row(MultiBufferRow(buffer_point.row));
2279 if line_indent.is_line_blank() {
2280 return None;
2281 }
2282
2283 const INLINE_SLOT_CHAR_LIMIT: u32 = 4;
2284 const MAX_ALTERNATE_DISTANCE: u32 = 8;
2285
2286 let excerpt_id = snapshot
2287 .display_snapshot
2288 .buffer_snapshot
2289 .excerpt_containing(buffer_point..buffer_point)
2290 .map(|excerpt| excerpt.id());
2291
2292 let is_valid_row = |row_candidate: u32| -> bool {
2293 // move to other row if folded row
2294 if snapshot.is_line_folded(MultiBufferRow(row_candidate)) {
2295 return false;
2296 }
2297 if buffer_point.row == row_candidate {
2298 // move to other row if cursor is in slot
2299 if buffer_point.column < INLINE_SLOT_CHAR_LIMIT {
2300 return false;
2301 }
2302 } else {
2303 let candidate_point = MultiBufferPoint {
2304 row: row_candidate,
2305 column: 0,
2306 };
2307 let candidate_excerpt_id = snapshot
2308 .display_snapshot
2309 .buffer_snapshot
2310 .excerpt_containing(candidate_point..candidate_point)
2311 .map(|excerpt| excerpt.id());
2312 // move to other row if different excerpt
2313 if excerpt_id != candidate_excerpt_id {
2314 return false;
2315 }
2316 }
2317 let line_indent = snapshot
2318 .display_snapshot
2319 .buffer_snapshot
2320 .line_indent_for_row(MultiBufferRow(row_candidate));
2321 // use this row if it's blank
2322 if line_indent.is_line_blank() {
2323 true
2324 } else {
2325 // use this row if code starts after slot
2326 let indent_size = snapshot
2327 .display_snapshot
2328 .buffer_snapshot
2329 .indent_size_for_line(MultiBufferRow(row_candidate));
2330 indent_size.len >= INLINE_SLOT_CHAR_LIMIT
2331 }
2332 };
2333
2334 let new_buffer_row = if is_valid_row(buffer_point.row) {
2335 Some(buffer_point.row)
2336 } else {
2337 let max_row = snapshot.display_snapshot.buffer_snapshot.max_point().row;
2338 (1..=MAX_ALTERNATE_DISTANCE).find_map(|offset| {
2339 let row_above = buffer_point.row.saturating_sub(offset);
2340 let row_below = buffer_point.row + offset;
2341 if row_above != buffer_point.row && is_valid_row(row_above) {
2342 Some(row_above)
2343 } else if row_below <= max_row && is_valid_row(row_below) {
2344 Some(row_below)
2345 } else {
2346 None
2347 }
2348 })
2349 }?;
2350
2351 let new_display_row = snapshot
2352 .display_snapshot
2353 .point_to_display_point(
2354 Point {
2355 row: new_buffer_row,
2356 column: buffer_point.column,
2357 },
2358 text::Bias::Left,
2359 )
2360 .row();
2361
2362 let start_y = content_origin.y
2363 + ((new_display_row.as_f32() - (scroll_pixel_position.y / line_height)) * line_height)
2364 + (line_height / 2.0)
2365 - (icon_size.square(window, cx) / 2.);
2366 let start_x = content_origin.x - scroll_pixel_position.x + (window.rem_size() * 0.1);
2367
2368 let absolute_offset = gpui::point(start_x, start_y);
2369 button.layout_as_root(gpui::AvailableSpace::min_size(), window, cx);
2370 button.prepaint_as_root(
2371 absolute_offset,
2372 gpui::AvailableSpace::min_size(),
2373 window,
2374 cx,
2375 );
2376 Some(button)
2377 }
2378
2379 fn layout_inline_blame(
2380 &self,
2381 display_row: DisplayRow,
2382 row_info: &RowInfo,
2383 line_layout: &LineWithInvisibles,
2384 crease_trailer: Option<&CreaseTrailerLayout>,
2385 em_width: Pixels,
2386 content_origin: gpui::Point<Pixels>,
2387 scroll_pixel_position: gpui::Point<Pixels>,
2388 line_height: Pixels,
2389 text_hitbox: &Hitbox,
2390 window: &mut Window,
2391 cx: &mut App,
2392 ) -> Option<InlineBlameLayout> {
2393 if !self
2394 .editor
2395 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
2396 {
2397 return None;
2398 }
2399
2400 let editor = self.editor.read(cx);
2401 let blame = editor.blame.clone()?;
2402 let padding = {
2403 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
2404 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
2405
2406 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
2407
2408 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
2409 match &inline_completion.completion {
2410 InlineCompletion::Edit {
2411 display_mode: EditDisplayMode::TabAccept,
2412 ..
2413 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
2414 _ => {}
2415 }
2416 }
2417
2418 padding * em_width
2419 };
2420
2421 let entry = blame
2422 .update(cx, |blame, cx| {
2423 blame.blame_for_rows(&[*row_info], cx).next()
2424 })
2425 .flatten()?;
2426
2427 let mut element = render_inline_blame_entry(entry.clone(), &self.style, cx)?;
2428
2429 let start_y = content_origin.y
2430 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
2431
2432 let start_x = {
2433 let line_end = if let Some(crease_trailer) = crease_trailer {
2434 crease_trailer.bounds.right()
2435 } else {
2436 content_origin.x - scroll_pixel_position.x + line_layout.width
2437 };
2438
2439 let padded_line_end = line_end + padding;
2440
2441 let min_column_in_pixels = ProjectSettings::get_global(cx)
2442 .git
2443 .inline_blame
2444 .and_then(|settings| settings.min_column)
2445 .map(|col| self.column_pixels(col as usize, window, cx))
2446 .unwrap_or(px(0.));
2447 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
2448
2449 cmp::max(padded_line_end, min_start)
2450 };
2451
2452 let absolute_offset = point(start_x, start_y);
2453 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2454 let bounds = Bounds::new(absolute_offset, size);
2455
2456 self.layout_blame_entry_popover(entry.clone(), blame, line_height, text_hitbox, window, cx);
2457
2458 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
2459
2460 Some(InlineBlameLayout {
2461 element,
2462 bounds,
2463 entry,
2464 })
2465 }
2466
2467 fn layout_blame_entry_popover(
2468 &self,
2469 blame_entry: BlameEntry,
2470 blame: Entity<GitBlame>,
2471 line_height: Pixels,
2472 text_hitbox: &Hitbox,
2473 window: &mut Window,
2474 cx: &mut App,
2475 ) {
2476 let Some((popover_state, target_point)) = self.editor.read_with(cx, |editor, _| {
2477 editor
2478 .inline_blame_popover
2479 .as_ref()
2480 .map(|state| (state.popover_state.clone(), state.position))
2481 }) else {
2482 return;
2483 };
2484
2485 let workspace = self
2486 .editor
2487 .read_with(cx, |editor, _| editor.workspace().map(|w| w.downgrade()));
2488
2489 let maybe_element = workspace.and_then(|workspace| {
2490 render_blame_entry_popover(
2491 blame_entry,
2492 popover_state.scroll_handle,
2493 popover_state.commit_message,
2494 popover_state.markdown,
2495 workspace,
2496 &blame,
2497 window,
2498 cx,
2499 )
2500 });
2501
2502 if let Some(mut element) = maybe_element {
2503 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2504 let overall_height = size.height + HOVER_POPOVER_GAP;
2505 let popover_origin = if target_point.y > overall_height {
2506 point(target_point.x, target_point.y - size.height)
2507 } else {
2508 point(
2509 target_point.x,
2510 target_point.y + line_height + HOVER_POPOVER_GAP,
2511 )
2512 };
2513
2514 let horizontal_offset = (text_hitbox.top_right().x
2515 - POPOVER_RIGHT_OFFSET
2516 - (popover_origin.x + size.width))
2517 .min(Pixels::ZERO);
2518
2519 let origin = point(popover_origin.x + horizontal_offset, popover_origin.y);
2520 let popover_bounds = Bounds::new(origin, size);
2521
2522 self.editor.update(cx, |editor, _| {
2523 if let Some(state) = &mut editor.inline_blame_popover {
2524 state.popover_bounds = Some(popover_bounds);
2525 }
2526 });
2527
2528 window.defer_draw(element, origin, 2);
2529 }
2530 }
2531
2532 fn layout_blame_entries(
2533 &self,
2534 buffer_rows: &[RowInfo],
2535 em_width: Pixels,
2536 scroll_position: gpui::Point<f32>,
2537 line_height: Pixels,
2538 gutter_hitbox: &Hitbox,
2539 max_width: Option<Pixels>,
2540 window: &mut Window,
2541 cx: &mut App,
2542 ) -> Option<Vec<AnyElement>> {
2543 if !self
2544 .editor
2545 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
2546 {
2547 return None;
2548 }
2549
2550 let blame = self.editor.read(cx).blame.clone()?;
2551 let workspace = self.editor.read(cx).workspace()?;
2552 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
2553 blame.blame_for_rows(buffer_rows, cx).collect()
2554 });
2555
2556 let width = if let Some(max_width) = max_width {
2557 AvailableSpace::Definite(max_width)
2558 } else {
2559 AvailableSpace::MaxContent
2560 };
2561 let scroll_top = scroll_position.y * line_height;
2562 let start_x = em_width;
2563
2564 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
2565 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
2566
2567 let shaped_lines = blamed_rows
2568 .into_iter()
2569 .enumerate()
2570 .flat_map(|(ix, blame_entry)| {
2571 let mut element = render_blame_entry(
2572 ix,
2573 &blame,
2574 blame_entry?,
2575 &self.style,
2576 &mut last_used_color,
2577 self.editor.clone(),
2578 workspace.clone(),
2579 blame_renderer.clone(),
2580 cx,
2581 )?;
2582
2583 let start_y = ix as f32 * line_height - (scroll_top % line_height);
2584 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
2585
2586 element.prepaint_as_root(
2587 absolute_offset,
2588 size(width, AvailableSpace::MinContent),
2589 window,
2590 cx,
2591 );
2592
2593 Some(element)
2594 })
2595 .collect();
2596
2597 Some(shaped_lines)
2598 }
2599
2600 fn layout_indent_guides(
2601 &self,
2602 content_origin: gpui::Point<Pixels>,
2603 text_origin: gpui::Point<Pixels>,
2604 visible_buffer_range: Range<MultiBufferRow>,
2605 scroll_pixel_position: gpui::Point<Pixels>,
2606 line_height: Pixels,
2607 snapshot: &DisplaySnapshot,
2608 window: &mut Window,
2609 cx: &mut App,
2610 ) -> Option<Vec<IndentGuideLayout>> {
2611 if self.editor.read(cx).mode().is_minimap() {
2612 return None;
2613 }
2614 let indent_guides = self.editor.update(cx, |editor, cx| {
2615 editor.indent_guides(visible_buffer_range, snapshot, cx)
2616 })?;
2617
2618 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
2619 editor
2620 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
2621 .unwrap_or_default()
2622 });
2623
2624 Some(
2625 indent_guides
2626 .into_iter()
2627 .enumerate()
2628 .filter_map(|(i, indent_guide)| {
2629 let single_indent_width =
2630 self.column_pixels(indent_guide.tab_size as usize, window, cx);
2631 let total_width = single_indent_width * indent_guide.depth as f32;
2632 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
2633 if start_x >= text_origin.x {
2634 let (offset_y, length) = Self::calculate_indent_guide_bounds(
2635 indent_guide.start_row..indent_guide.end_row,
2636 line_height,
2637 snapshot,
2638 );
2639
2640 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
2641
2642 Some(IndentGuideLayout {
2643 origin: point(start_x, start_y),
2644 length,
2645 single_indent_width,
2646 depth: indent_guide.depth,
2647 active: active_indent_guide_indices.contains(&i),
2648 settings: indent_guide.settings,
2649 })
2650 } else {
2651 None
2652 }
2653 })
2654 .collect(),
2655 )
2656 }
2657
2658 fn calculate_indent_guide_bounds(
2659 row_range: Range<MultiBufferRow>,
2660 line_height: Pixels,
2661 snapshot: &DisplaySnapshot,
2662 ) -> (gpui::Pixels, gpui::Pixels) {
2663 let start_point = Point::new(row_range.start.0, 0);
2664 let end_point = Point::new(row_range.end.0, 0);
2665
2666 let row_range = start_point.to_display_point(snapshot).row()
2667 ..end_point.to_display_point(snapshot).row();
2668
2669 let mut prev_line = start_point;
2670 prev_line.row = prev_line.row.saturating_sub(1);
2671 let prev_line = prev_line.to_display_point(snapshot).row();
2672
2673 let mut cons_line = end_point;
2674 cons_line.row += 1;
2675 let cons_line = cons_line.to_display_point(snapshot).row();
2676
2677 let mut offset_y = row_range.start.0 as f32 * line_height;
2678 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
2679
2680 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
2681 if row_range.end == cons_line {
2682 length += line_height;
2683 }
2684
2685 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
2686 // we want to extend the indent guide to the start of the block.
2687 let mut block_height = 0;
2688 let mut block_offset = 0;
2689 let mut found_excerpt_header = false;
2690 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
2691 if matches!(block, Block::ExcerptBoundary { .. }) {
2692 found_excerpt_header = true;
2693 break;
2694 }
2695 block_offset += block.height();
2696 block_height += block.height();
2697 }
2698 if !found_excerpt_header {
2699 offset_y -= block_offset as f32 * line_height;
2700 length += block_height as f32 * line_height;
2701 }
2702
2703 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
2704 // we want to ensure that the indent guide stops before the excerpt header.
2705 let mut block_height = 0;
2706 let mut found_excerpt_header = false;
2707 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2708 if matches!(block, Block::ExcerptBoundary { .. }) {
2709 found_excerpt_header = true;
2710 }
2711 block_height += block.height();
2712 }
2713 if found_excerpt_header {
2714 length -= block_height as f32 * line_height;
2715 }
2716
2717 (offset_y, length)
2718 }
2719
2720 fn layout_breakpoints(
2721 &self,
2722 line_height: Pixels,
2723 range: Range<DisplayRow>,
2724 scroll_pixel_position: gpui::Point<Pixels>,
2725 gutter_dimensions: &GutterDimensions,
2726 gutter_hitbox: &Hitbox,
2727 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2728 snapshot: &EditorSnapshot,
2729 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2730 row_infos: &[RowInfo],
2731 window: &mut Window,
2732 cx: &mut App,
2733 ) -> Vec<AnyElement> {
2734 self.editor.update(cx, |editor, cx| {
2735 breakpoints
2736 .into_iter()
2737 .filter_map(|(display_row, (text_anchor, bp, state))| {
2738 if row_infos
2739 .get((display_row.0.saturating_sub(range.start.0)) as usize)
2740 .is_some_and(|row_info| {
2741 row_info.expand_info.is_some()
2742 || row_info
2743 .diff_status
2744 .is_some_and(|status| status.is_deleted())
2745 })
2746 {
2747 return None;
2748 }
2749
2750 if range.start > display_row || range.end < display_row {
2751 return None;
2752 }
2753
2754 let row =
2755 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(&snapshot).row);
2756 if snapshot.is_line_folded(row) {
2757 return None;
2758 }
2759
2760 let button = editor.render_breakpoint(text_anchor, display_row, &bp, state, cx);
2761
2762 let button = prepaint_gutter_button(
2763 button,
2764 display_row,
2765 line_height,
2766 gutter_dimensions,
2767 scroll_pixel_position,
2768 gutter_hitbox,
2769 display_hunks,
2770 window,
2771 cx,
2772 );
2773 Some(button)
2774 })
2775 .collect_vec()
2776 })
2777 }
2778
2779 #[allow(clippy::too_many_arguments)]
2780 fn layout_run_indicators(
2781 &self,
2782 line_height: Pixels,
2783 range: Range<DisplayRow>,
2784 row_infos: &[RowInfo],
2785 scroll_pixel_position: gpui::Point<Pixels>,
2786 gutter_dimensions: &GutterDimensions,
2787 gutter_hitbox: &Hitbox,
2788 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2789 snapshot: &EditorSnapshot,
2790 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2791 window: &mut Window,
2792 cx: &mut App,
2793 ) -> Vec<AnyElement> {
2794 self.editor.update(cx, |editor, cx| {
2795 let active_task_indicator_row =
2796 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2797 deployed_from,
2798 actions,
2799 ..
2800 })) = editor.context_menu.borrow().as_ref()
2801 {
2802 actions
2803 .tasks()
2804 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2805 .or_else(|| match deployed_from {
2806 Some(CodeActionSource::Indicator(row)) => Some(*row),
2807 _ => None,
2808 })
2809 } else {
2810 None
2811 };
2812
2813 let offset_range_start =
2814 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2815
2816 let offset_range_end =
2817 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2818
2819 editor
2820 .tasks
2821 .iter()
2822 .filter_map(|(_, tasks)| {
2823 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2824 if multibuffer_point < offset_range_start
2825 || multibuffer_point > offset_range_end
2826 {
2827 return None;
2828 }
2829 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2830 let buffer_folded = snapshot
2831 .buffer_snapshot
2832 .buffer_line_for_row(multibuffer_row)
2833 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2834 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2835 .unwrap_or(false);
2836 if buffer_folded {
2837 return None;
2838 }
2839
2840 if snapshot.is_line_folded(multibuffer_row) {
2841 // Skip folded indicators, unless it's the starting line of a fold.
2842 if multibuffer_row
2843 .0
2844 .checked_sub(1)
2845 .map_or(false, |previous_row| {
2846 snapshot.is_line_folded(MultiBufferRow(previous_row))
2847 })
2848 {
2849 return None;
2850 }
2851 }
2852
2853 let display_row = multibuffer_point.to_display_point(snapshot).row();
2854 if !range.contains(&display_row) {
2855 return None;
2856 }
2857 if row_infos
2858 .get((display_row - range.start).0 as usize)
2859 .is_some_and(|row_info| row_info.expand_info.is_some())
2860 {
2861 return None;
2862 }
2863
2864 let button = editor.render_run_indicator(
2865 &self.style,
2866 Some(display_row) == active_task_indicator_row,
2867 display_row,
2868 breakpoints.remove(&display_row),
2869 cx,
2870 );
2871
2872 let button = prepaint_gutter_button(
2873 button,
2874 display_row,
2875 line_height,
2876 gutter_dimensions,
2877 scroll_pixel_position,
2878 gutter_hitbox,
2879 display_hunks,
2880 window,
2881 cx,
2882 );
2883 Some(button)
2884 })
2885 .collect_vec()
2886 })
2887 }
2888
2889 fn layout_expand_toggles(
2890 &self,
2891 gutter_hitbox: &Hitbox,
2892 gutter_dimensions: GutterDimensions,
2893 em_width: Pixels,
2894 line_height: Pixels,
2895 scroll_position: gpui::Point<f32>,
2896 buffer_rows: &[RowInfo],
2897 window: &mut Window,
2898 cx: &mut App,
2899 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
2900 if self.editor.read(cx).disable_expand_excerpt_buttons {
2901 return vec![];
2902 }
2903
2904 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
2905
2906 let scroll_top = scroll_position.y * line_height;
2907
2908 let max_line_number_length = self
2909 .editor
2910 .read(cx)
2911 .buffer()
2912 .read(cx)
2913 .snapshot(cx)
2914 .widest_line_number()
2915 .ilog10()
2916 + 1;
2917
2918 let elements = buffer_rows
2919 .into_iter()
2920 .enumerate()
2921 .map(|(ix, row_info)| {
2922 let ExpandInfo {
2923 excerpt_id,
2924 direction,
2925 } = row_info.expand_info?;
2926
2927 let icon_name = match direction {
2928 ExpandExcerptDirection::Up => IconName::ExpandUp,
2929 ExpandExcerptDirection::Down => IconName::ExpandDown,
2930 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
2931 };
2932
2933 let git_gutter_width = Self::gutter_strip_width(line_height);
2934 let available_width = gutter_dimensions.left_padding - git_gutter_width;
2935
2936 let editor = self.editor.clone();
2937 let is_wide = max_line_number_length
2938 >= EditorSettings::get_global(cx).gutter.min_line_number_digits as u32
2939 && row_info
2940 .buffer_row
2941 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
2942 || gutter_dimensions.right_padding == px(0.);
2943
2944 let width = if is_wide {
2945 available_width - px(2.)
2946 } else {
2947 available_width + em_width - px(2.)
2948 };
2949
2950 let toggle = IconButton::new(("expand", ix), icon_name)
2951 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
2952 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
2953 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
2954 .width(width.into())
2955 .on_click(move |_, window, cx| {
2956 editor.update(cx, |editor, cx| {
2957 editor.expand_excerpt(excerpt_id, direction, window, cx);
2958 });
2959 })
2960 .tooltip(Tooltip::for_action_title(
2961 "Expand Excerpt",
2962 &crate::actions::ExpandExcerpts::default(),
2963 ))
2964 .into_any_element();
2965
2966 let position = point(
2967 git_gutter_width + px(1.),
2968 ix as f32 * line_height - (scroll_top % line_height) + px(1.),
2969 );
2970 let origin = gutter_hitbox.origin + position;
2971
2972 Some((toggle, origin))
2973 })
2974 .collect();
2975
2976 elements
2977 }
2978
2979 fn calculate_relative_line_numbers(
2980 &self,
2981 snapshot: &EditorSnapshot,
2982 rows: &Range<DisplayRow>,
2983 relative_to: Option<DisplayRow>,
2984 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2985 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2986 let Some(relative_to) = relative_to else {
2987 return relative_rows;
2988 };
2989
2990 let start = rows.start.min(relative_to);
2991 let end = rows.end.max(relative_to);
2992
2993 let buffer_rows = snapshot
2994 .row_infos(start)
2995 .take(1 + end.minus(start) as usize)
2996 .collect::<Vec<_>>();
2997
2998 let head_idx = relative_to.minus(start);
2999 let mut delta = 1;
3000 let mut i = head_idx + 1;
3001 while i < buffer_rows.len() as u32 {
3002 if buffer_rows[i as usize].buffer_row.is_some() {
3003 if rows.contains(&DisplayRow(i + start.0)) {
3004 relative_rows.insert(DisplayRow(i + start.0), delta);
3005 }
3006 delta += 1;
3007 }
3008 i += 1;
3009 }
3010 delta = 1;
3011 i = head_idx.min(buffer_rows.len() as u32 - 1);
3012 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
3013 i -= 1;
3014 }
3015
3016 while i > 0 {
3017 i -= 1;
3018 if buffer_rows[i as usize].buffer_row.is_some() {
3019 if rows.contains(&DisplayRow(i + start.0)) {
3020 relative_rows.insert(DisplayRow(i + start.0), delta);
3021 }
3022 delta += 1;
3023 }
3024 }
3025
3026 relative_rows
3027 }
3028
3029 fn layout_line_numbers(
3030 &self,
3031 gutter_hitbox: Option<&Hitbox>,
3032 gutter_dimensions: GutterDimensions,
3033 line_height: Pixels,
3034 scroll_position: gpui::Point<f32>,
3035 rows: Range<DisplayRow>,
3036 buffer_rows: &[RowInfo],
3037 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3038 newest_selection_head: Option<DisplayPoint>,
3039 snapshot: &EditorSnapshot,
3040 window: &mut Window,
3041 cx: &mut App,
3042 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
3043 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
3044 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode.is_full()
3045 });
3046 if !include_line_numbers {
3047 return Arc::default();
3048 }
3049
3050 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
3051 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
3052 let newest = editor.selections.newest::<Point>(cx);
3053 SelectionLayout::new(
3054 newest,
3055 editor.selections.line_mode,
3056 editor.cursor_shape,
3057 &snapshot.display_snapshot,
3058 true,
3059 true,
3060 None,
3061 )
3062 .head
3063 });
3064 let is_relative = editor.should_use_relative_line_numbers(cx);
3065 (newest_selection_head, is_relative)
3066 });
3067
3068 let relative_to = if is_relative {
3069 Some(newest_selection_head.row())
3070 } else {
3071 None
3072 };
3073 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
3074 let mut line_number = String::new();
3075 let line_numbers = buffer_rows
3076 .into_iter()
3077 .enumerate()
3078 .flat_map(|(ix, row_info)| {
3079 let display_row = DisplayRow(rows.start.0 + ix as u32);
3080 line_number.clear();
3081 let non_relative_number = row_info.buffer_row? + 1;
3082 let number = relative_rows
3083 .get(&display_row)
3084 .unwrap_or(&non_relative_number);
3085 write!(&mut line_number, "{number}").unwrap();
3086 if row_info
3087 .diff_status
3088 .is_some_and(|status| status.is_deleted())
3089 {
3090 return None;
3091 }
3092
3093 let color = active_rows
3094 .get(&display_row)
3095 .map(|spec| {
3096 if spec.breakpoint {
3097 cx.theme().colors().debugger_accent
3098 } else {
3099 cx.theme().colors().editor_active_line_number
3100 }
3101 })
3102 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
3103 let shaped_line =
3104 self.shape_line_number(SharedString::from(&line_number), color, window);
3105 let scroll_top = scroll_position.y * line_height;
3106 let line_origin = gutter_hitbox.map(|hitbox| {
3107 hitbox.origin
3108 + point(
3109 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
3110 ix as f32 * line_height - (scroll_top % line_height),
3111 )
3112 });
3113
3114 #[cfg(not(test))]
3115 let hitbox = line_origin.map(|line_origin| {
3116 window.insert_hitbox(
3117 Bounds::new(line_origin, size(shaped_line.width, line_height)),
3118 HitboxBehavior::Normal,
3119 )
3120 });
3121 #[cfg(test)]
3122 let hitbox = {
3123 let _ = line_origin;
3124 None
3125 };
3126
3127 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
3128 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
3129 let line_number = LineNumberLayout {
3130 shaped_line,
3131 hitbox,
3132 };
3133 Some((multi_buffer_row, line_number))
3134 })
3135 .collect();
3136 Arc::new(line_numbers)
3137 }
3138
3139 fn layout_crease_toggles(
3140 &self,
3141 rows: Range<DisplayRow>,
3142 row_infos: &[RowInfo],
3143 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3144 snapshot: &EditorSnapshot,
3145 window: &mut Window,
3146 cx: &mut App,
3147 ) -> Vec<Option<AnyElement>> {
3148 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3149 && snapshot.mode.is_full()
3150 && self.editor.read(cx).is_singleton(cx);
3151 if include_fold_statuses {
3152 row_infos
3153 .into_iter()
3154 .enumerate()
3155 .map(|(ix, info)| {
3156 if info.expand_info.is_some() {
3157 return None;
3158 }
3159 let row = info.multibuffer_row?;
3160 let display_row = DisplayRow(rows.start.0 + ix as u32);
3161 let active = active_rows.contains_key(&display_row);
3162
3163 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3164 })
3165 .collect()
3166 } else {
3167 Vec::new()
3168 }
3169 }
3170
3171 fn layout_crease_trailers(
3172 &self,
3173 buffer_rows: impl IntoIterator<Item = RowInfo>,
3174 snapshot: &EditorSnapshot,
3175 window: &mut Window,
3176 cx: &mut App,
3177 ) -> Vec<Option<AnyElement>> {
3178 buffer_rows
3179 .into_iter()
3180 .map(|row_info| {
3181 if row_info.expand_info.is_some() {
3182 return None;
3183 }
3184 if let Some(row) = row_info.multibuffer_row {
3185 snapshot.render_crease_trailer(row, window, cx)
3186 } else {
3187 None
3188 }
3189 })
3190 .collect()
3191 }
3192
3193 fn layout_lines(
3194 rows: Range<DisplayRow>,
3195 snapshot: &EditorSnapshot,
3196 style: &EditorStyle,
3197 editor_width: Pixels,
3198 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3199 window: &mut Window,
3200 cx: &mut App,
3201 ) -> Vec<LineWithInvisibles> {
3202 if rows.start >= rows.end {
3203 return Vec::new();
3204 }
3205
3206 // Show the placeholder when the editor is empty
3207 if snapshot.is_empty() {
3208 let font_size = style.text.font_size.to_pixels(window.rem_size());
3209 let placeholder_color = cx.theme().colors().text_placeholder;
3210 let placeholder_text = snapshot.placeholder_text();
3211
3212 let placeholder_lines = placeholder_text
3213 .as_ref()
3214 .map_or("", AsRef::as_ref)
3215 .split('\n')
3216 .skip(rows.start.0 as usize)
3217 .chain(iter::repeat(""))
3218 .take(rows.len());
3219 placeholder_lines
3220 .map(move |line| {
3221 let run = TextRun {
3222 len: line.len(),
3223 font: style.text.font(),
3224 color: placeholder_color,
3225 background_color: None,
3226 underline: None,
3227 strikethrough: None,
3228 };
3229 let line =
3230 window
3231 .text_system()
3232 .shape_line(line.to_string().into(), font_size, &[run]);
3233 LineWithInvisibles {
3234 width: line.width,
3235 len: line.len,
3236 fragments: smallvec![LineFragment::Text(line)],
3237 invisibles: Vec::new(),
3238 font_size,
3239 }
3240 })
3241 .collect()
3242 } else {
3243 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
3244 LineWithInvisibles::from_chunks(
3245 chunks,
3246 &style,
3247 MAX_LINE_LEN,
3248 rows.len(),
3249 &snapshot.mode,
3250 editor_width,
3251 is_row_soft_wrapped,
3252 window,
3253 cx,
3254 )
3255 }
3256 }
3257
3258 fn prepaint_lines(
3259 &self,
3260 start_row: DisplayRow,
3261 line_layouts: &mut [LineWithInvisibles],
3262 line_height: Pixels,
3263 scroll_pixel_position: gpui::Point<Pixels>,
3264 content_origin: gpui::Point<Pixels>,
3265 window: &mut Window,
3266 cx: &mut App,
3267 ) -> SmallVec<[AnyElement; 1]> {
3268 let mut line_elements = SmallVec::new();
3269 for (ix, line) in line_layouts.iter_mut().enumerate() {
3270 let row = start_row + DisplayRow(ix as u32);
3271 line.prepaint(
3272 line_height,
3273 scroll_pixel_position,
3274 row,
3275 content_origin,
3276 &mut line_elements,
3277 window,
3278 cx,
3279 );
3280 }
3281 line_elements
3282 }
3283
3284 fn render_block(
3285 &self,
3286 block: &Block,
3287 available_width: AvailableSpace,
3288 block_id: BlockId,
3289 block_row_start: DisplayRow,
3290 snapshot: &EditorSnapshot,
3291 text_x: Pixels,
3292 rows: &Range<DisplayRow>,
3293 line_layouts: &[LineWithInvisibles],
3294 editor_margins: &EditorMargins,
3295 line_height: Pixels,
3296 em_width: Pixels,
3297 text_hitbox: &Hitbox,
3298 editor_width: Pixels,
3299 scroll_width: &mut Pixels,
3300 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3301 row_block_types: &mut HashMap<DisplayRow, bool>,
3302 selections: &[Selection<Point>],
3303 selected_buffer_ids: &Vec<BufferId>,
3304 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3305 sticky_header_excerpt_id: Option<ExcerptId>,
3306 window: &mut Window,
3307 cx: &mut App,
3308 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3309 let mut x_position = None;
3310 let mut element = match block {
3311 Block::Custom(custom) => {
3312 let block_start = custom.start().to_point(&snapshot.buffer_snapshot);
3313 let block_end = custom.end().to_point(&snapshot.buffer_snapshot);
3314 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3315 return None;
3316 }
3317 let align_to = block_start.to_display_point(snapshot);
3318 let x_and_width = |layout: &LineWithInvisibles| {
3319 Some((
3320 text_x + layout.x_for_index(align_to.column() as usize),
3321 text_x + layout.width,
3322 ))
3323 };
3324 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3325 x_position =
3326 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3327 x_and_width(&layout)
3328 } else {
3329 x_and_width(&layout_line(
3330 align_to.row(),
3331 snapshot,
3332 &self.style,
3333 editor_width,
3334 is_row_soft_wrapped,
3335 window,
3336 cx,
3337 ))
3338 };
3339
3340 let anchor_x = x_position.unwrap().0;
3341
3342 let selected = selections
3343 .binary_search_by(|selection| {
3344 if selection.end <= block_start {
3345 Ordering::Less
3346 } else if selection.start >= block_end {
3347 Ordering::Greater
3348 } else {
3349 Ordering::Equal
3350 }
3351 })
3352 .is_ok();
3353
3354 div()
3355 .size_full()
3356 .children(
3357 (!snapshot.mode.is_minimap() || custom.render_in_minimap).then(|| {
3358 custom.render(&mut BlockContext {
3359 window,
3360 app: cx,
3361 anchor_x,
3362 margins: editor_margins,
3363 line_height,
3364 em_width,
3365 block_id,
3366 selected,
3367 max_width: text_hitbox.size.width.max(*scroll_width),
3368 editor_style: &self.style,
3369 })
3370 }),
3371 )
3372 .into_any()
3373 }
3374
3375 Block::FoldedBuffer {
3376 first_excerpt,
3377 height,
3378 ..
3379 } => {
3380 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
3381 let result = v_flex().id(block_id).w_full().pr(editor_margins.right);
3382
3383 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
3384 result
3385 .child(self.render_buffer_header(
3386 first_excerpt,
3387 true,
3388 selected,
3389 false,
3390 jump_data,
3391 window,
3392 cx,
3393 ))
3394 .into_any_element()
3395 }
3396
3397 Block::ExcerptBoundary {
3398 excerpt,
3399 height,
3400 starts_new_buffer,
3401 ..
3402 } => {
3403 let color = cx.theme().colors().clone();
3404 let mut result = v_flex().id(block_id).w_full();
3405
3406 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
3407
3408 if *starts_new_buffer {
3409 if sticky_header_excerpt_id != Some(excerpt.id) {
3410 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3411
3412 result = result.child(div().pr(editor_margins.right).child(
3413 self.render_buffer_header(
3414 excerpt, false, selected, false, jump_data, window, cx,
3415 ),
3416 ));
3417 } else {
3418 result =
3419 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3420 }
3421 } else {
3422 result = result.child(
3423 h_flex().relative().child(
3424 div()
3425 .top(line_height / 2.)
3426 .absolute()
3427 .w_full()
3428 .h_px()
3429 .bg(color.border_variant),
3430 ),
3431 );
3432 };
3433
3434 result.into_any()
3435 }
3436 };
3437
3438 // Discover the element's content height, then round up to the nearest multiple of line height.
3439 let preliminary_size = element.layout_as_root(
3440 size(available_width, AvailableSpace::MinContent),
3441 window,
3442 cx,
3443 );
3444 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
3445 let final_size = if preliminary_size.height == quantized_height {
3446 preliminary_size
3447 } else {
3448 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
3449 };
3450 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
3451
3452 let mut row = block_row_start;
3453 let mut x_offset = px(0.);
3454 let mut is_block = true;
3455
3456 if let BlockId::Custom(custom_block_id) = block_id {
3457 if block.has_height() {
3458 if block.place_near() {
3459 if let Some((x_target, line_width)) = x_position {
3460 let margin = em_width * 2;
3461 if line_width + final_size.width + margin
3462 < editor_width + editor_margins.gutter.full_width()
3463 && !row_block_types.contains_key(&(row - 1))
3464 && element_height_in_lines == 1
3465 {
3466 x_offset = line_width + margin;
3467 row = row - 1;
3468 is_block = false;
3469 element_height_in_lines = 0;
3470 row_block_types.insert(row, is_block);
3471 } else {
3472 let max_offset = editor_width + editor_margins.gutter.full_width()
3473 - final_size.width;
3474 let min_offset = (x_target + em_width - final_size.width)
3475 .max(editor_margins.gutter.full_width());
3476 x_offset = x_target.min(max_offset).max(min_offset);
3477 }
3478 }
3479 };
3480 if element_height_in_lines != block.height() {
3481 resized_blocks.insert(custom_block_id, element_height_in_lines);
3482 }
3483 }
3484 }
3485 for i in 0..element_height_in_lines {
3486 row_block_types.insert(row + i, is_block);
3487 }
3488
3489 Some((element, final_size, row, x_offset))
3490 }
3491
3492 fn render_buffer_header(
3493 &self,
3494 for_excerpt: &ExcerptInfo,
3495 is_folded: bool,
3496 is_selected: bool,
3497 is_sticky: bool,
3498 jump_data: JumpData,
3499 window: &mut Window,
3500 cx: &mut App,
3501 ) -> Div {
3502 let editor = self.editor.read(cx);
3503 let file_status = editor
3504 .buffer
3505 .read(cx)
3506 .all_diff_hunks_expanded()
3507 .then(|| {
3508 editor
3509 .project
3510 .as_ref()?
3511 .read(cx)
3512 .status_for_buffer_id(for_excerpt.buffer_id, cx)
3513 })
3514 .flatten();
3515
3516 let include_root = editor
3517 .project
3518 .as_ref()
3519 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
3520 .unwrap_or_default();
3521 let can_open_excerpts = Editor::can_open_excerpts_in_file(for_excerpt.buffer.file());
3522 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
3523 let filename = path
3524 .as_ref()
3525 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
3526 let parent_path = path.as_ref().and_then(|path| {
3527 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
3528 });
3529 let focus_handle = editor.focus_handle(cx);
3530 let colors = cx.theme().colors();
3531
3532 div()
3533 .p_1()
3534 .w_full()
3535 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
3536 .child(
3537 h_flex()
3538 .size_full()
3539 .gap_2()
3540 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
3541 .pl_0p5()
3542 .pr_5()
3543 .rounded_sm()
3544 .when(is_sticky, |el| el.shadow_md())
3545 .border_1()
3546 .map(|div| {
3547 let border_color = if is_selected
3548 && is_folded
3549 && focus_handle.contains_focused(window, cx)
3550 {
3551 colors.border_focused
3552 } else {
3553 colors.border
3554 };
3555 div.border_color(border_color)
3556 })
3557 .bg(colors.editor_subheader_background)
3558 .hover(|style| style.bg(colors.element_hover))
3559 .map(|header| {
3560 let editor = self.editor.clone();
3561 let buffer_id = for_excerpt.buffer_id;
3562 let toggle_chevron_icon =
3563 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
3564 header.child(
3565 div()
3566 .hover(|style| style.bg(colors.element_selected))
3567 .rounded_xs()
3568 .child(
3569 ButtonLike::new("toggle-buffer-fold")
3570 .style(ui::ButtonStyle::Transparent)
3571 .height(px(28.).into())
3572 .width(px(28.).into())
3573 .children(toggle_chevron_icon)
3574 .tooltip({
3575 let focus_handle = focus_handle.clone();
3576 move |window, cx| {
3577 Tooltip::for_action_in(
3578 "Toggle Excerpt Fold",
3579 &ToggleFold,
3580 &focus_handle,
3581 window,
3582 cx,
3583 )
3584 }
3585 })
3586 .on_click(move |_, _, cx| {
3587 if is_folded {
3588 editor.update(cx, |editor, cx| {
3589 editor.unfold_buffer(buffer_id, cx);
3590 });
3591 } else {
3592 editor.update(cx, |editor, cx| {
3593 editor.fold_buffer(buffer_id, cx);
3594 });
3595 }
3596 }),
3597 ),
3598 )
3599 })
3600 .children(
3601 editor
3602 .addons
3603 .values()
3604 .filter_map(|addon| {
3605 addon.render_buffer_header_controls(for_excerpt, window, cx)
3606 })
3607 .take(1),
3608 )
3609 .child(
3610 h_flex()
3611 .cursor_pointer()
3612 .id("path header block")
3613 .size_full()
3614 .justify_between()
3615 .child(
3616 h_flex()
3617 .gap_2()
3618 .child(
3619 Label::new(
3620 filename
3621 .map(SharedString::from)
3622 .unwrap_or_else(|| "untitled".into()),
3623 )
3624 .single_line()
3625 .when_some(
3626 file_status,
3627 |el, status| {
3628 el.color(if status.is_conflicted() {
3629 Color::Conflict
3630 } else if status.is_modified() {
3631 Color::Modified
3632 } else if status.is_deleted() {
3633 Color::Disabled
3634 } else {
3635 Color::Created
3636 })
3637 .when(status.is_deleted(), |el| el.strikethrough())
3638 },
3639 ),
3640 )
3641 .when_some(parent_path, |then, path| {
3642 then.child(div().child(path).text_color(
3643 if file_status.is_some_and(FileStatus::is_deleted) {
3644 colors.text_disabled
3645 } else {
3646 colors.text_muted
3647 },
3648 ))
3649 }),
3650 )
3651 .when(can_open_excerpts && is_selected && path.is_some(), |el| {
3652 el.child(
3653 h_flex()
3654 .id("jump-to-file-button")
3655 .gap_2p5()
3656 .child(Label::new("Jump To File"))
3657 .children(
3658 KeyBinding::for_action_in(
3659 &OpenExcerpts,
3660 &focus_handle,
3661 window,
3662 cx,
3663 )
3664 .map(|binding| binding.into_any_element()),
3665 ),
3666 )
3667 })
3668 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
3669 .on_click(window.listener_for(&self.editor, {
3670 move |editor, e: &ClickEvent, window, cx| {
3671 editor.open_excerpts_common(
3672 Some(jump_data.clone()),
3673 e.down.modifiers.secondary(),
3674 window,
3675 cx,
3676 );
3677 }
3678 })),
3679 ),
3680 )
3681 }
3682
3683 fn render_blocks(
3684 &self,
3685 rows: Range<DisplayRow>,
3686 snapshot: &EditorSnapshot,
3687 hitbox: &Hitbox,
3688 text_hitbox: &Hitbox,
3689 editor_width: Pixels,
3690 scroll_width: &mut Pixels,
3691 editor_margins: &EditorMargins,
3692 em_width: Pixels,
3693 text_x: Pixels,
3694 line_height: Pixels,
3695 line_layouts: &mut [LineWithInvisibles],
3696 selections: &[Selection<Point>],
3697 selected_buffer_ids: &Vec<BufferId>,
3698 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3699 sticky_header_excerpt_id: Option<ExcerptId>,
3700 window: &mut Window,
3701 cx: &mut App,
3702 ) -> Result<(Vec<BlockLayout>, HashMap<DisplayRow, bool>), HashMap<CustomBlockId, u32>> {
3703 let (fixed_blocks, non_fixed_blocks) = snapshot
3704 .blocks_in_range(rows.clone())
3705 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
3706
3707 let mut focused_block = self
3708 .editor
3709 .update(cx, |editor, _| editor.take_focused_block());
3710 let mut fixed_block_max_width = Pixels::ZERO;
3711 let mut blocks = Vec::new();
3712 let mut resized_blocks = HashMap::default();
3713 let mut row_block_types = HashMap::default();
3714
3715 for (row, block) in fixed_blocks {
3716 let block_id = block.id();
3717
3718 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3719 focused_block = None;
3720 }
3721
3722 if let Some((element, element_size, row, x_offset)) = self.render_block(
3723 block,
3724 AvailableSpace::MinContent,
3725 block_id,
3726 row,
3727 snapshot,
3728 text_x,
3729 &rows,
3730 line_layouts,
3731 editor_margins,
3732 line_height,
3733 em_width,
3734 text_hitbox,
3735 editor_width,
3736 scroll_width,
3737 &mut resized_blocks,
3738 &mut row_block_types,
3739 selections,
3740 selected_buffer_ids,
3741 is_row_soft_wrapped,
3742 sticky_header_excerpt_id,
3743 window,
3744 cx,
3745 ) {
3746 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
3747 blocks.push(BlockLayout {
3748 id: block_id,
3749 x_offset,
3750 row: Some(row),
3751 element,
3752 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
3753 style: BlockStyle::Fixed,
3754 overlaps_gutter: true,
3755 is_buffer_header: block.is_buffer_header(),
3756 });
3757 }
3758 }
3759
3760 for (row, block) in non_fixed_blocks {
3761 let style = block.style();
3762 let width = match (style, block.place_near()) {
3763 (_, true) => AvailableSpace::MinContent,
3764 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
3765 (BlockStyle::Flex, _) => hitbox
3766 .size
3767 .width
3768 .max(fixed_block_max_width)
3769 .max(editor_margins.gutter.width + *scroll_width)
3770 .into(),
3771 (BlockStyle::Fixed, _) => unreachable!(),
3772 };
3773 let block_id = block.id();
3774
3775 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3776 focused_block = None;
3777 }
3778
3779 if let Some((element, element_size, row, x_offset)) = self.render_block(
3780 block,
3781 width,
3782 block_id,
3783 row,
3784 snapshot,
3785 text_x,
3786 &rows,
3787 line_layouts,
3788 editor_margins,
3789 line_height,
3790 em_width,
3791 text_hitbox,
3792 editor_width,
3793 scroll_width,
3794 &mut resized_blocks,
3795 &mut row_block_types,
3796 selections,
3797 selected_buffer_ids,
3798 is_row_soft_wrapped,
3799 sticky_header_excerpt_id,
3800 window,
3801 cx,
3802 ) {
3803 blocks.push(BlockLayout {
3804 id: block_id,
3805 x_offset,
3806 row: Some(row),
3807 element,
3808 available_space: size(width, element_size.height.into()),
3809 style,
3810 overlaps_gutter: !block.place_near(),
3811 is_buffer_header: block.is_buffer_header(),
3812 });
3813 }
3814 }
3815
3816 if let Some(focused_block) = focused_block {
3817 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3818 if focus_handle.is_focused(window) {
3819 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3820 let style = block.style();
3821 let width = match style {
3822 BlockStyle::Fixed => AvailableSpace::MinContent,
3823 BlockStyle::Flex => AvailableSpace::Definite(
3824 hitbox
3825 .size
3826 .width
3827 .max(fixed_block_max_width)
3828 .max(editor_margins.gutter.width + *scroll_width),
3829 ),
3830 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3831 };
3832
3833 if let Some((element, element_size, _, x_offset)) = self.render_block(
3834 &block,
3835 width,
3836 focused_block.id,
3837 rows.end,
3838 snapshot,
3839 text_x,
3840 &rows,
3841 line_layouts,
3842 editor_margins,
3843 line_height,
3844 em_width,
3845 text_hitbox,
3846 editor_width,
3847 scroll_width,
3848 &mut resized_blocks,
3849 &mut row_block_types,
3850 selections,
3851 selected_buffer_ids,
3852 is_row_soft_wrapped,
3853 sticky_header_excerpt_id,
3854 window,
3855 cx,
3856 ) {
3857 blocks.push(BlockLayout {
3858 id: block.id(),
3859 x_offset,
3860 row: None,
3861 element,
3862 available_space: size(width, element_size.height.into()),
3863 style,
3864 overlaps_gutter: true,
3865 is_buffer_header: block.is_buffer_header(),
3866 });
3867 }
3868 }
3869 }
3870 }
3871 }
3872
3873 if resized_blocks.is_empty() {
3874 *scroll_width =
3875 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
3876 Ok((blocks, row_block_types))
3877 } else {
3878 Err(resized_blocks)
3879 }
3880 }
3881
3882 fn layout_blocks(
3883 &self,
3884 blocks: &mut Vec<BlockLayout>,
3885 hitbox: &Hitbox,
3886 line_height: Pixels,
3887 scroll_pixel_position: gpui::Point<Pixels>,
3888 window: &mut Window,
3889 cx: &mut App,
3890 ) {
3891 for block in blocks {
3892 let mut origin = if let Some(row) = block.row {
3893 hitbox.origin
3894 + point(
3895 block.x_offset,
3896 row.as_f32() * line_height - scroll_pixel_position.y,
3897 )
3898 } else {
3899 // Position the block outside the visible area
3900 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3901 };
3902
3903 if !matches!(block.style, BlockStyle::Sticky) {
3904 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3905 }
3906
3907 let focus_handle =
3908 block
3909 .element
3910 .prepaint_as_root(origin, block.available_space, window, cx);
3911
3912 if let Some(focus_handle) = focus_handle {
3913 self.editor.update(cx, |editor, _cx| {
3914 editor.set_focused_block(FocusedBlock {
3915 id: block.id,
3916 focus_handle: focus_handle.downgrade(),
3917 });
3918 });
3919 }
3920 }
3921 }
3922
3923 fn layout_sticky_buffer_header(
3924 &self,
3925 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
3926 scroll_position: f32,
3927 line_height: Pixels,
3928 right_margin: Pixels,
3929 snapshot: &EditorSnapshot,
3930 hitbox: &Hitbox,
3931 selected_buffer_ids: &Vec<BufferId>,
3932 blocks: &[BlockLayout],
3933 window: &mut Window,
3934 cx: &mut App,
3935 ) -> AnyElement {
3936 let jump_data = header_jump_data(
3937 snapshot,
3938 DisplayRow(scroll_position as u32),
3939 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3940 excerpt,
3941 );
3942
3943 let editor_bg_color = cx.theme().colors().editor_background;
3944
3945 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3946
3947 let available_width = hitbox.bounds.size.width - right_margin;
3948
3949 let mut header = v_flex()
3950 .relative()
3951 .child(
3952 div()
3953 .w(available_width)
3954 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3955 .bg(linear_gradient(
3956 0.,
3957 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3958 linear_color_stop(editor_bg_color, 0.6),
3959 ))
3960 .absolute()
3961 .top_0(),
3962 )
3963 .child(
3964 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
3965 .into_any_element(),
3966 )
3967 .into_any_element();
3968
3969 let mut origin = hitbox.origin;
3970 // Move floating header up to avoid colliding with the next buffer header.
3971 for block in blocks.iter() {
3972 if !block.is_buffer_header {
3973 continue;
3974 }
3975
3976 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else {
3977 continue;
3978 };
3979
3980 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
3981 let offset = scroll_position - max_row as f32;
3982
3983 if offset > 0.0 {
3984 origin.y -= offset * line_height;
3985 }
3986 break;
3987 }
3988
3989 let size = size(
3990 AvailableSpace::Definite(available_width),
3991 AvailableSpace::MinContent,
3992 );
3993
3994 header.prepaint_as_root(origin, size, window, cx);
3995
3996 header
3997 }
3998
3999 fn layout_cursor_popovers(
4000 &self,
4001 line_height: Pixels,
4002 text_hitbox: &Hitbox,
4003 content_origin: gpui::Point<Pixels>,
4004 right_margin: Pixels,
4005 start_row: DisplayRow,
4006 scroll_pixel_position: gpui::Point<Pixels>,
4007 line_layouts: &[LineWithInvisibles],
4008 cursor: DisplayPoint,
4009 cursor_point: Point,
4010 style: &EditorStyle,
4011 window: &mut Window,
4012 cx: &mut App,
4013 ) -> Option<ContextMenuLayout> {
4014 let mut min_menu_height = Pixels::ZERO;
4015 let mut max_menu_height = Pixels::ZERO;
4016 let mut height_above_menu = Pixels::ZERO;
4017 let height_below_menu = Pixels::ZERO;
4018 let mut edit_prediction_popover_visible = false;
4019 let mut context_menu_visible = false;
4020 let context_menu_placement;
4021
4022 {
4023 let editor = self.editor.read(cx);
4024 if editor
4025 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
4026 {
4027 height_above_menu +=
4028 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
4029 edit_prediction_popover_visible = true;
4030 }
4031
4032 if editor.context_menu_visible() {
4033 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
4034 let (min_height_in_lines, max_height_in_lines) = editor
4035 .context_menu_options
4036 .as_ref()
4037 .map_or((3, 12), |options| {
4038 (options.min_entries_visible, options.max_entries_visible)
4039 });
4040
4041 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4042 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4043 context_menu_visible = true;
4044 }
4045 }
4046 context_menu_placement = editor
4047 .context_menu_options
4048 .as_ref()
4049 .and_then(|options| options.placement.clone());
4050 }
4051
4052 let visible = edit_prediction_popover_visible || context_menu_visible;
4053 if !visible {
4054 return None;
4055 }
4056
4057 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4058 let target_position = content_origin
4059 + gpui::Point {
4060 x: cmp::max(
4061 px(0.),
4062 cursor_row_layout.x_for_index(cursor.column() as usize)
4063 - scroll_pixel_position.x,
4064 ),
4065 y: cmp::max(
4066 px(0.),
4067 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
4068 ),
4069 };
4070
4071 let viewport_bounds =
4072 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4073 right: -right_margin - MENU_GAP,
4074 ..Default::default()
4075 });
4076
4077 let min_height = height_above_menu + min_menu_height + height_below_menu;
4078 let max_height = height_above_menu + max_menu_height + height_below_menu;
4079 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4080 target_position,
4081 line_height,
4082 min_height,
4083 max_height,
4084 context_menu_placement,
4085 text_hitbox,
4086 viewport_bounds,
4087 window,
4088 cx,
4089 |height, max_width_for_stable_x, y_flipped, window, cx| {
4090 // First layout the menu to get its size - others can be at least this wide.
4091 let context_menu = if context_menu_visible {
4092 let menu_height = if y_flipped {
4093 height - height_below_menu
4094 } else {
4095 height - height_above_menu
4096 };
4097 let mut element = self
4098 .render_context_menu(line_height, menu_height, window, cx)
4099 .expect("Visible context menu should always render.");
4100 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4101 Some((CursorPopoverType::CodeContextMenu, element, size))
4102 } else {
4103 None
4104 };
4105 let min_width = context_menu
4106 .as_ref()
4107 .map_or(px(0.), |(_, _, size)| size.width);
4108 let max_width = max_width_for_stable_x.max(
4109 context_menu
4110 .as_ref()
4111 .map_or(px(0.), |(_, _, size)| size.width),
4112 );
4113
4114 let edit_prediction = if edit_prediction_popover_visible {
4115 self.editor.update(cx, move |editor, cx| {
4116 let accept_binding =
4117 editor.accept_edit_prediction_keybind(false, window, cx);
4118 let mut element = editor.render_edit_prediction_cursor_popover(
4119 min_width,
4120 max_width,
4121 cursor_point,
4122 style,
4123 accept_binding.keystroke(),
4124 window,
4125 cx,
4126 )?;
4127 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4128 Some((CursorPopoverType::EditPrediction, element, size))
4129 })
4130 } else {
4131 None
4132 };
4133 vec![edit_prediction, context_menu]
4134 .into_iter()
4135 .flatten()
4136 .collect::<Vec<_>>()
4137 },
4138 )?;
4139
4140 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
4141 .iter()
4142 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
4143 let last_ix = laid_out_popovers.len() - 1;
4144 let menu_is_last = menu_ix == last_ix;
4145 let first_popover_bounds = laid_out_popovers[0].1;
4146 let last_popover_bounds = laid_out_popovers[last_ix].1;
4147
4148 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
4149 // right, and otherwise it goes below or to the right.
4150 let mut target_bounds = Bounds::from_corners(
4151 first_popover_bounds.origin,
4152 last_popover_bounds.bottom_right(),
4153 );
4154 target_bounds.size.width = menu_bounds.size.width;
4155
4156 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
4157 // based on this is preferred for layout stability.
4158 let mut max_target_bounds = target_bounds;
4159 max_target_bounds.size.height = max_height;
4160 if y_flipped {
4161 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
4162 }
4163
4164 // Add spacing around `target_bounds` and `max_target_bounds`.
4165 let mut extend_amount = Edges::all(MENU_GAP);
4166 if y_flipped {
4167 extend_amount.bottom = line_height;
4168 } else {
4169 extend_amount.top = line_height;
4170 }
4171 let target_bounds = target_bounds.extend(extend_amount);
4172 let max_target_bounds = max_target_bounds.extend(extend_amount);
4173
4174 let must_place_above_or_below =
4175 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
4176 laid_out_popovers[menu_ix + 1..]
4177 .iter()
4178 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
4179 } else {
4180 false
4181 };
4182
4183 let aside_bounds = self.layout_context_menu_aside(
4184 y_flipped,
4185 *menu_bounds,
4186 target_bounds,
4187 max_target_bounds,
4188 max_menu_height,
4189 must_place_above_or_below,
4190 text_hitbox,
4191 viewport_bounds,
4192 window,
4193 cx,
4194 );
4195
4196 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
4197 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
4198 Some(*bounds)
4199 } else {
4200 None
4201 }
4202 }) {
4203 let bounds = if let Some(aside_bounds) = aside_bounds {
4204 menu_bounds.union(&aside_bounds)
4205 } else {
4206 menu_bounds
4207 };
4208 return Some(ContextMenuLayout { y_flipped, bounds });
4209 }
4210
4211 None
4212 }
4213
4214 fn layout_gutter_menu(
4215 &self,
4216 line_height: Pixels,
4217 text_hitbox: &Hitbox,
4218 content_origin: gpui::Point<Pixels>,
4219 right_margin: Pixels,
4220 scroll_pixel_position: gpui::Point<Pixels>,
4221 gutter_overshoot: Pixels,
4222 window: &mut Window,
4223 cx: &mut App,
4224 ) {
4225 let editor = self.editor.read(cx);
4226 if !editor.context_menu_visible() {
4227 return;
4228 }
4229 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
4230 editor.context_menu_origin()
4231 else {
4232 return;
4233 };
4234 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
4235 // indicator than just a plain first column of the text field.
4236 let target_position = content_origin
4237 + gpui::Point {
4238 x: -gutter_overshoot,
4239 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
4240 };
4241
4242 let (min_height_in_lines, max_height_in_lines) = editor
4243 .context_menu_options
4244 .as_ref()
4245 .map_or((3, 12), |options| {
4246 (options.min_entries_visible, options.max_entries_visible)
4247 });
4248
4249 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4250 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4251 let viewport_bounds =
4252 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4253 right: -right_margin - MENU_GAP,
4254 ..Default::default()
4255 });
4256 self.layout_popovers_above_or_below_line(
4257 target_position,
4258 line_height,
4259 min_height,
4260 max_height,
4261 editor
4262 .context_menu_options
4263 .as_ref()
4264 .and_then(|options| options.placement.clone()),
4265 text_hitbox,
4266 viewport_bounds,
4267 window,
4268 cx,
4269 move |height, _max_width_for_stable_x, _, window, cx| {
4270 let mut element = self
4271 .render_context_menu(line_height, height, window, cx)
4272 .expect("Visible context menu should always render.");
4273 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4274 vec![(CursorPopoverType::CodeContextMenu, element, size)]
4275 },
4276 );
4277 }
4278
4279 fn layout_popovers_above_or_below_line(
4280 &self,
4281 target_position: gpui::Point<Pixels>,
4282 line_height: Pixels,
4283 min_height: Pixels,
4284 max_height: Pixels,
4285 placement: Option<ContextMenuPlacement>,
4286 text_hitbox: &Hitbox,
4287 viewport_bounds: Bounds<Pixels>,
4288 window: &mut Window,
4289 cx: &mut App,
4290 make_sized_popovers: impl FnOnce(
4291 Pixels,
4292 Pixels,
4293 bool,
4294 &mut Window,
4295 &mut App,
4296 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
4297 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
4298 let text_style = TextStyleRefinement {
4299 line_height: Some(DefiniteLength::Fraction(
4300 BufferLineHeight::Comfortable.value(),
4301 )),
4302 ..Default::default()
4303 };
4304 window.with_text_style(Some(text_style), |window| {
4305 // If the max height won't fit below and there is more space above, put it above the line.
4306 let bottom_y_when_flipped = target_position.y - line_height;
4307 let available_above = bottom_y_when_flipped - text_hitbox.top();
4308 let available_below = text_hitbox.bottom() - target_position.y;
4309 let y_overflows_below = max_height > available_below;
4310 let mut y_flipped = match placement {
4311 Some(ContextMenuPlacement::Above) => true,
4312 Some(ContextMenuPlacement::Below) => false,
4313 None => y_overflows_below && available_above > available_below,
4314 };
4315 let mut height = cmp::min(
4316 max_height,
4317 if y_flipped {
4318 available_above
4319 } else {
4320 available_below
4321 },
4322 );
4323
4324 // If the min height doesn't fit within text bounds, instead fit within the window.
4325 if height < min_height {
4326 let available_above = bottom_y_when_flipped;
4327 let available_below = viewport_bounds.bottom() - target_position.y;
4328 let (y_flipped_override, height_override) = match placement {
4329 Some(ContextMenuPlacement::Above) => {
4330 (true, cmp::min(available_above, min_height))
4331 }
4332 Some(ContextMenuPlacement::Below) => {
4333 (false, cmp::min(available_below, min_height))
4334 }
4335 None => {
4336 if available_below > min_height {
4337 (false, min_height)
4338 } else if available_above > min_height {
4339 (true, min_height)
4340 } else if available_above > available_below {
4341 (true, available_above)
4342 } else {
4343 (false, available_below)
4344 }
4345 }
4346 };
4347 y_flipped = y_flipped_override;
4348 height = height_override;
4349 }
4350
4351 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
4352
4353 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
4354 // for very narrow windows.
4355 let popovers =
4356 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
4357 if popovers.is_empty() {
4358 return None;
4359 }
4360
4361 let max_width = popovers
4362 .iter()
4363 .map(|(_, _, size)| size.width)
4364 .max()
4365 .unwrap_or_default();
4366
4367 let mut current_position = gpui::Point {
4368 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
4369 // overflow. Include space for the scrollbar.
4370 x: target_position
4371 .x
4372 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
4373 y: if y_flipped {
4374 bottom_y_when_flipped
4375 } else {
4376 target_position.y
4377 },
4378 };
4379
4380 let mut laid_out_popovers = popovers
4381 .into_iter()
4382 .map(|(popover_type, element, size)| {
4383 if y_flipped {
4384 current_position.y -= size.height;
4385 }
4386 let position = current_position;
4387 window.defer_draw(element, current_position, 1);
4388 if !y_flipped {
4389 current_position.y += size.height + MENU_GAP;
4390 } else {
4391 current_position.y -= MENU_GAP;
4392 }
4393 (popover_type, Bounds::new(position, size))
4394 })
4395 .collect::<Vec<_>>();
4396
4397 if y_flipped {
4398 laid_out_popovers.reverse();
4399 }
4400
4401 Some((laid_out_popovers, y_flipped))
4402 })
4403 }
4404
4405 fn layout_context_menu_aside(
4406 &self,
4407 y_flipped: bool,
4408 menu_bounds: Bounds<Pixels>,
4409 target_bounds: Bounds<Pixels>,
4410 max_target_bounds: Bounds<Pixels>,
4411 max_height: Pixels,
4412 must_place_above_or_below: bool,
4413 text_hitbox: &Hitbox,
4414 viewport_bounds: Bounds<Pixels>,
4415 window: &mut Window,
4416 cx: &mut App,
4417 ) -> Option<Bounds<Pixels>> {
4418 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
4419 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
4420 && !must_place_above_or_below
4421 {
4422 let max_width = cmp::min(
4423 available_within_viewport.right - px(1.),
4424 MENU_ASIDE_MAX_WIDTH,
4425 );
4426 let mut aside = self.render_context_menu_aside(
4427 size(max_width, max_height - POPOVER_Y_PADDING),
4428 window,
4429 cx,
4430 )?;
4431 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
4432 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
4433 Some((aside, right_position, size))
4434 } else {
4435 let max_size = size(
4436 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
4437 // won't be needed here.
4438 cmp::min(
4439 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
4440 viewport_bounds.right(),
4441 ),
4442 cmp::min(
4443 max_height,
4444 cmp::max(
4445 available_within_viewport.top,
4446 available_within_viewport.bottom,
4447 ),
4448 ) - POPOVER_Y_PADDING,
4449 );
4450 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
4451 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
4452
4453 let top_position = point(
4454 menu_bounds.origin.x,
4455 target_bounds.top() - actual_size.height,
4456 );
4457 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
4458
4459 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
4460 // Prefer to fit on the same side of the line as the menu, then on the other side of
4461 // the line.
4462 if !y_flipped && wanted.height < available.bottom {
4463 Some(bottom_position)
4464 } else if !y_flipped && wanted.height < available.top {
4465 Some(top_position)
4466 } else if y_flipped && wanted.height < available.top {
4467 Some(top_position)
4468 } else if y_flipped && wanted.height < available.bottom {
4469 Some(bottom_position)
4470 } else {
4471 None
4472 }
4473 };
4474
4475 // Prefer choosing a direction using max sizes rather than actual size for stability.
4476 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
4477 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
4478 let aside_position = fit_within(available_within_text, wanted)
4479 // Fallback: fit max size in window.
4480 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
4481 // Fallback: fit actual size in window.
4482 .or_else(|| fit_within(available_within_viewport, actual_size));
4483
4484 aside_position.map(|position| (aside, position, actual_size))
4485 };
4486
4487 // Skip drawing if it doesn't fit anywhere.
4488 if let Some((aside, position, size)) = positioned_aside {
4489 let aside_bounds = Bounds::new(position, size);
4490 window.defer_draw(aside, position, 2);
4491 return Some(aside_bounds);
4492 }
4493
4494 None
4495 }
4496
4497 fn render_context_menu(
4498 &self,
4499 line_height: Pixels,
4500 height: Pixels,
4501 window: &mut Window,
4502 cx: &mut App,
4503 ) -> Option<AnyElement> {
4504 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
4505 self.editor.update(cx, |editor, cx| {
4506 editor.render_context_menu(&self.style, max_height_in_lines, window, cx)
4507 })
4508 }
4509
4510 fn render_context_menu_aside(
4511 &self,
4512 max_size: Size<Pixels>,
4513 window: &mut Window,
4514 cx: &mut App,
4515 ) -> Option<AnyElement> {
4516 if max_size.width < px(100.) || max_size.height < px(12.) {
4517 None
4518 } else {
4519 self.editor.update(cx, |editor, cx| {
4520 editor.render_context_menu_aside(max_size, window, cx)
4521 })
4522 }
4523 }
4524
4525 fn layout_mouse_context_menu(
4526 &self,
4527 editor_snapshot: &EditorSnapshot,
4528 visible_range: Range<DisplayRow>,
4529 content_origin: gpui::Point<Pixels>,
4530 window: &mut Window,
4531 cx: &mut App,
4532 ) -> Option<AnyElement> {
4533 let position = self.editor.update(cx, |editor, _cx| {
4534 let visible_start_point = editor.display_to_pixel_point(
4535 DisplayPoint::new(visible_range.start, 0),
4536 editor_snapshot,
4537 window,
4538 )?;
4539 let visible_end_point = editor.display_to_pixel_point(
4540 DisplayPoint::new(visible_range.end, 0),
4541 editor_snapshot,
4542 window,
4543 )?;
4544
4545 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4546 let (source_display_point, position) = match mouse_context_menu.position {
4547 MenuPosition::PinnedToScreen(point) => (None, point),
4548 MenuPosition::PinnedToEditor { source, offset } => {
4549 let source_display_point = source.to_display_point(editor_snapshot);
4550 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
4551 let position = content_origin + source_point + offset;
4552 (Some(source_display_point), position)
4553 }
4554 };
4555
4556 let source_included = source_display_point.map_or(true, |source_display_point| {
4557 visible_range
4558 .to_inclusive()
4559 .contains(&source_display_point.row())
4560 });
4561 let position_included =
4562 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
4563 if !source_included && !position_included {
4564 None
4565 } else {
4566 Some(position)
4567 }
4568 })?;
4569
4570 let text_style = TextStyleRefinement {
4571 line_height: Some(DefiniteLength::Fraction(
4572 BufferLineHeight::Comfortable.value(),
4573 )),
4574 ..Default::default()
4575 };
4576 window.with_text_style(Some(text_style), |window| {
4577 let mut element = self.editor.read_with(cx, |editor, _| {
4578 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4579 let context_menu = mouse_context_menu.context_menu.clone();
4580
4581 Some(
4582 deferred(
4583 anchored()
4584 .position(position)
4585 .child(context_menu)
4586 .anchor(Corner::TopLeft)
4587 .snap_to_window_with_margin(px(8.)),
4588 )
4589 .with_priority(1)
4590 .into_any(),
4591 )
4592 })?;
4593
4594 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
4595 Some(element)
4596 })
4597 }
4598
4599 fn layout_hover_popovers(
4600 &self,
4601 snapshot: &EditorSnapshot,
4602 hitbox: &Hitbox,
4603 visible_display_row_range: Range<DisplayRow>,
4604 content_origin: gpui::Point<Pixels>,
4605 scroll_pixel_position: gpui::Point<Pixels>,
4606 line_layouts: &[LineWithInvisibles],
4607 line_height: Pixels,
4608 em_width: Pixels,
4609 context_menu_layout: Option<ContextMenuLayout>,
4610 window: &mut Window,
4611 cx: &mut App,
4612 ) {
4613 struct MeasuredHoverPopover {
4614 element: AnyElement,
4615 size: Size<Pixels>,
4616 horizontal_offset: Pixels,
4617 }
4618
4619 let max_size = size(
4620 (120. * em_width) // Default size
4621 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4622 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4623 (16. * line_height) // Default size
4624 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4625 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4626 );
4627
4628 let hover_popovers = self.editor.update(cx, |editor, cx| {
4629 editor.hover_state.render(
4630 snapshot,
4631 visible_display_row_range.clone(),
4632 max_size,
4633 window,
4634 cx,
4635 )
4636 });
4637 let Some((position, hover_popovers)) = hover_popovers else {
4638 return;
4639 };
4640
4641 // This is safe because we check on layout whether the required row is available
4642 let hovered_row_layout =
4643 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4644
4645 // Compute Hovered Point
4646 let x =
4647 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4648 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4649 let hovered_point = content_origin + point(x, y);
4650
4651 let mut overall_height = Pixels::ZERO;
4652 let mut measured_hover_popovers = Vec::new();
4653 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
4654 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4655 let horizontal_offset =
4656 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
4657 .min(Pixels::ZERO);
4658 match position {
4659 itertools::Position::Middle | itertools::Position::Last => {
4660 overall_height += HOVER_POPOVER_GAP
4661 }
4662 _ => {}
4663 }
4664 overall_height += size.height;
4665 measured_hover_popovers.push(MeasuredHoverPopover {
4666 element: hover_popover,
4667 size,
4668 horizontal_offset,
4669 });
4670 }
4671
4672 fn draw_occluder(
4673 width: Pixels,
4674 origin: gpui::Point<Pixels>,
4675 window: &mut Window,
4676 cx: &mut App,
4677 ) {
4678 let mut occlusion = div()
4679 .size_full()
4680 .occlude()
4681 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4682 .into_any_element();
4683 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4684 window.defer_draw(occlusion, origin, 2);
4685 }
4686
4687 fn place_popovers_above(
4688 hovered_point: gpui::Point<Pixels>,
4689 measured_hover_popovers: Vec<MeasuredHoverPopover>,
4690 window: &mut Window,
4691 cx: &mut App,
4692 ) {
4693 let mut current_y = hovered_point.y;
4694 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4695 let size = popover.size;
4696 let popover_origin = point(
4697 hovered_point.x + popover.horizontal_offset,
4698 current_y - size.height,
4699 );
4700
4701 window.defer_draw(popover.element, popover_origin, 2);
4702 if position != itertools::Position::Last {
4703 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4704 draw_occluder(size.width, origin, window, cx);
4705 }
4706
4707 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4708 }
4709 }
4710
4711 fn place_popovers_below(
4712 hovered_point: gpui::Point<Pixels>,
4713 measured_hover_popovers: Vec<MeasuredHoverPopover>,
4714 line_height: Pixels,
4715 window: &mut Window,
4716 cx: &mut App,
4717 ) {
4718 let mut current_y = hovered_point.y + line_height;
4719 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4720 let size = popover.size;
4721 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4722
4723 window.defer_draw(popover.element, popover_origin, 2);
4724 if position != itertools::Position::Last {
4725 let origin = point(popover_origin.x, popover_origin.y + size.height);
4726 draw_occluder(size.width, origin, window, cx);
4727 }
4728
4729 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4730 }
4731 }
4732
4733 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
4734 context_menu_layout
4735 .as_ref()
4736 .map_or(false, |menu| bounds.intersects(&menu.bounds))
4737 };
4738
4739 let can_place_above = {
4740 let mut bounds_above = Vec::new();
4741 let mut current_y = hovered_point.y;
4742 for popover in &measured_hover_popovers {
4743 let size = popover.size;
4744 let popover_origin = point(
4745 hovered_point.x + popover.horizontal_offset,
4746 current_y - size.height,
4747 );
4748 bounds_above.push(Bounds::new(popover_origin, size));
4749 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4750 }
4751 bounds_above
4752 .iter()
4753 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
4754 };
4755
4756 let can_place_below = || {
4757 let mut bounds_below = Vec::new();
4758 let mut current_y = hovered_point.y + line_height;
4759 for popover in &measured_hover_popovers {
4760 let size = popover.size;
4761 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4762 bounds_below.push(Bounds::new(popover_origin, size));
4763 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4764 }
4765 bounds_below
4766 .iter()
4767 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
4768 };
4769
4770 if can_place_above {
4771 // try placing above hovered point
4772 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
4773 } else if can_place_below() {
4774 // try placing below hovered point
4775 place_popovers_below(
4776 hovered_point,
4777 measured_hover_popovers,
4778 line_height,
4779 window,
4780 cx,
4781 );
4782 } else {
4783 // try to place popovers around the context menu
4784 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
4785 let total_width = measured_hover_popovers
4786 .iter()
4787 .map(|p| p.size.width)
4788 .max()
4789 .unwrap_or(Pixels::ZERO);
4790 let y_for_horizontal_positioning = if menu.y_flipped {
4791 menu.bounds.bottom() - overall_height
4792 } else {
4793 menu.bounds.top()
4794 };
4795 let possible_origins = vec![
4796 // left of context menu
4797 point(
4798 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
4799 y_for_horizontal_positioning,
4800 ),
4801 // right of context menu
4802 point(
4803 menu.bounds.right() + HOVER_POPOVER_GAP,
4804 y_for_horizontal_positioning,
4805 ),
4806 // top of context menu
4807 point(
4808 menu.bounds.left(),
4809 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
4810 ),
4811 // bottom of context menu
4812 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
4813 ];
4814 possible_origins.into_iter().find(|&origin| {
4815 Bounds::new(origin, size(total_width, overall_height))
4816 .is_contained_within(hitbox)
4817 })
4818 });
4819 if let Some(origin) = origin_surrounding_menu {
4820 let mut current_y = origin.y;
4821 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4822 let size = popover.size;
4823 let popover_origin = point(origin.x, current_y);
4824
4825 window.defer_draw(popover.element, popover_origin, 2);
4826 if position != itertools::Position::Last {
4827 let origin = point(popover_origin.x, popover_origin.y + size.height);
4828 draw_occluder(size.width, origin, window, cx);
4829 }
4830
4831 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4832 }
4833 } else {
4834 // fallback to existing above/below cursor logic
4835 // this might overlap menu or overflow in rare case
4836 if can_place_above {
4837 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
4838 } else {
4839 place_popovers_below(
4840 hovered_point,
4841 measured_hover_popovers,
4842 line_height,
4843 window,
4844 cx,
4845 );
4846 }
4847 }
4848 }
4849 }
4850
4851 fn layout_diff_hunk_controls(
4852 &self,
4853 row_range: Range<DisplayRow>,
4854 row_infos: &[RowInfo],
4855 text_hitbox: &Hitbox,
4856 newest_cursor_position: Option<DisplayPoint>,
4857 line_height: Pixels,
4858 right_margin: Pixels,
4859 scroll_pixel_position: gpui::Point<Pixels>,
4860 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4861 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
4862 editor: Entity<Editor>,
4863 window: &mut Window,
4864 cx: &mut App,
4865 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
4866 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
4867 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
4868
4869 let mut controls = vec![];
4870 let mut control_bounds = vec![];
4871
4872 let active_positions = [
4873 hovered_diff_hunk_row.map(|row| DisplayPoint::new(row, 0)),
4874 newest_cursor_position,
4875 ];
4876
4877 for (hunk, _) in display_hunks {
4878 if let DisplayDiffHunk::Unfolded {
4879 display_row_range,
4880 multi_buffer_range,
4881 status,
4882 is_created_file,
4883 ..
4884 } = &hunk
4885 {
4886 if display_row_range.start < row_range.start
4887 || display_row_range.start >= row_range.end
4888 {
4889 continue;
4890 }
4891 if highlighted_rows
4892 .get(&display_row_range.start)
4893 .and_then(|highlight| highlight.type_id)
4894 .is_some_and(|type_id| {
4895 [
4896 TypeId::of::<ConflictsOuter>(),
4897 TypeId::of::<ConflictsOursMarker>(),
4898 TypeId::of::<ConflictsOurs>(),
4899 TypeId::of::<ConflictsTheirs>(),
4900 TypeId::of::<ConflictsTheirsMarker>(),
4901 ]
4902 .contains(&type_id)
4903 })
4904 {
4905 continue;
4906 }
4907 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4908 if row_infos[row_ix].diff_status.is_none() {
4909 continue;
4910 }
4911 if row_infos[row_ix]
4912 .diff_status
4913 .is_some_and(|status| status.is_added())
4914 && !status.is_added()
4915 {
4916 continue;
4917 }
4918
4919 if active_positions
4920 .iter()
4921 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4922 {
4923 let y = display_row_range.start.as_f32() * line_height
4924 + text_hitbox.bounds.top()
4925 - scroll_pixel_position.y;
4926
4927 let mut element = render_diff_hunk_controls(
4928 display_row_range.start.0,
4929 status,
4930 multi_buffer_range.clone(),
4931 *is_created_file,
4932 line_height,
4933 &editor,
4934 window,
4935 cx,
4936 );
4937 let size =
4938 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
4939
4940 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
4941
4942 let bounds = Bounds::new(gpui::Point::new(x, y), size);
4943 control_bounds.push((display_row_range.start, bounds));
4944
4945 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
4946 element.prepaint(window, cx)
4947 });
4948 controls.push(element);
4949 }
4950 }
4951 }
4952
4953 (controls, control_bounds)
4954 }
4955
4956 fn layout_signature_help(
4957 &self,
4958 hitbox: &Hitbox,
4959 content_origin: gpui::Point<Pixels>,
4960 scroll_pixel_position: gpui::Point<Pixels>,
4961 newest_selection_head: Option<DisplayPoint>,
4962 start_row: DisplayRow,
4963 line_layouts: &[LineWithInvisibles],
4964 line_height: Pixels,
4965 em_width: Pixels,
4966 context_menu_layout: Option<ContextMenuLayout>,
4967 window: &mut Window,
4968 cx: &mut App,
4969 ) {
4970 if !self.editor.focus_handle(cx).is_focused(window) {
4971 return;
4972 }
4973 let Some(newest_selection_head) = newest_selection_head else {
4974 return;
4975 };
4976
4977 let max_size = size(
4978 (120. * em_width) // Default size
4979 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4980 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4981 (16. * line_height) // Default size
4982 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4983 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4984 );
4985
4986 let maybe_element = self.editor.update(cx, |editor, cx| {
4987 if let Some(popover) = editor.signature_help_state.popover_mut() {
4988 let element = popover.render(max_size, cx);
4989 Some(element)
4990 } else {
4991 None
4992 }
4993 });
4994 let Some(mut element) = maybe_element else {
4995 return;
4996 };
4997
4998 let selection_row = newest_selection_head.row();
4999 let Some(cursor_row_layout) = (selection_row >= start_row)
5000 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
5001 .flatten()
5002 else {
5003 return;
5004 };
5005
5006 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
5007 - scroll_pixel_position.x;
5008 let target_y = selection_row.as_f32() * line_height - scroll_pixel_position.y;
5009 let target_point = content_origin + point(target_x, target_y);
5010
5011 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
5012
5013 let (popover_bounds_above, popover_bounds_below) = {
5014 let horizontal_offset = (hitbox.top_right().x
5015 - POPOVER_RIGHT_OFFSET
5016 - (target_point.x + actual_size.width))
5017 .min(Pixels::ZERO);
5018 let initial_x = target_point.x + horizontal_offset;
5019 (
5020 Bounds::new(
5021 point(initial_x, target_point.y - actual_size.height),
5022 actual_size,
5023 ),
5024 Bounds::new(
5025 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
5026 actual_size,
5027 ),
5028 )
5029 };
5030
5031 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5032 context_menu_layout
5033 .as_ref()
5034 .map_or(false, |menu| bounds.intersects(&menu.bounds))
5035 };
5036
5037 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
5038 && !intersects_menu(popover_bounds_above)
5039 {
5040 // try placing above cursor
5041 popover_bounds_above.origin
5042 } else if popover_bounds_below.is_contained_within(hitbox)
5043 && !intersects_menu(popover_bounds_below)
5044 {
5045 // try placing below cursor
5046 popover_bounds_below.origin
5047 } else {
5048 // try surrounding context menu if exists
5049 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5050 let y_for_horizontal_positioning = if menu.y_flipped {
5051 menu.bounds.bottom() - actual_size.height
5052 } else {
5053 menu.bounds.top()
5054 };
5055 let possible_origins = vec![
5056 // left of context menu
5057 point(
5058 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
5059 y_for_horizontal_positioning,
5060 ),
5061 // right of context menu
5062 point(
5063 menu.bounds.right() + HOVER_POPOVER_GAP,
5064 y_for_horizontal_positioning,
5065 ),
5066 // top of context menu
5067 point(
5068 menu.bounds.left(),
5069 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
5070 ),
5071 // bottom of context menu
5072 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5073 ];
5074 possible_origins
5075 .into_iter()
5076 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
5077 });
5078 origin_surrounding_menu.unwrap_or_else(|| {
5079 // fallback to existing above/below cursor logic
5080 // this might overlap menu or overflow in rare case
5081 if popover_bounds_above.is_contained_within(hitbox) {
5082 popover_bounds_above.origin
5083 } else {
5084 popover_bounds_below.origin
5085 }
5086 })
5087 };
5088
5089 window.defer_draw(element, final_origin, 2);
5090 }
5091
5092 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5093 window.paint_layer(layout.hitbox.bounds, |window| {
5094 let scroll_top = layout.position_map.snapshot.scroll_position().y;
5095 let gutter_bg = cx.theme().colors().editor_gutter_background;
5096 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
5097 window.paint_quad(fill(
5098 layout.position_map.text_hitbox.bounds,
5099 self.style.background,
5100 ));
5101
5102 if matches!(
5103 layout.mode,
5104 EditorMode::Full { .. } | EditorMode::Minimap { .. }
5105 ) {
5106 let show_active_line_background = match layout.mode {
5107 EditorMode::Full {
5108 show_active_line_background,
5109 ..
5110 } => show_active_line_background,
5111 EditorMode::Minimap { .. } => true,
5112 _ => false,
5113 };
5114 let mut active_rows = layout.active_rows.iter().peekable();
5115 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
5116 let mut end_row = start_row.0;
5117 while active_rows
5118 .peek()
5119 .map_or(false, |(active_row, has_selection)| {
5120 active_row.0 == end_row + 1
5121 && has_selection.selection == contains_non_empty_selection.selection
5122 })
5123 {
5124 active_rows.next().unwrap();
5125 end_row += 1;
5126 }
5127
5128 if show_active_line_background && !contains_non_empty_selection.selection {
5129 let highlight_h_range =
5130 match layout.position_map.snapshot.current_line_highlight {
5131 CurrentLineHighlight::Gutter => Some(Range {
5132 start: layout.hitbox.left(),
5133 end: layout.gutter_hitbox.right(),
5134 }),
5135 CurrentLineHighlight::Line => Some(Range {
5136 start: layout.position_map.text_hitbox.bounds.left(),
5137 end: layout.position_map.text_hitbox.bounds.right(),
5138 }),
5139 CurrentLineHighlight::All => Some(Range {
5140 start: layout.hitbox.left(),
5141 end: layout.hitbox.right(),
5142 }),
5143 CurrentLineHighlight::None => None,
5144 };
5145 if let Some(range) = highlight_h_range {
5146 let active_line_bg = cx.theme().colors().editor_active_line_background;
5147 let bounds = Bounds {
5148 origin: point(
5149 range.start,
5150 layout.hitbox.origin.y
5151 + (start_row.as_f32() - scroll_top)
5152 * layout.position_map.line_height,
5153 ),
5154 size: size(
5155 range.end - range.start,
5156 layout.position_map.line_height
5157 * (end_row - start_row.0 + 1) as f32,
5158 ),
5159 };
5160 window.paint_quad(fill(bounds, active_line_bg));
5161 }
5162 }
5163 }
5164
5165 let mut paint_highlight = |highlight_row_start: DisplayRow,
5166 highlight_row_end: DisplayRow,
5167 highlight: crate::LineHighlight,
5168 edges| {
5169 let mut origin_x = layout.hitbox.left();
5170 let mut width = layout.hitbox.size.width;
5171 if !highlight.include_gutter {
5172 origin_x += layout.gutter_hitbox.size.width;
5173 width -= layout.gutter_hitbox.size.width;
5174 }
5175
5176 let origin = point(
5177 origin_x,
5178 layout.hitbox.origin.y
5179 + (highlight_row_start.as_f32() - scroll_top)
5180 * layout.position_map.line_height,
5181 );
5182 let size = size(
5183 width,
5184 layout.position_map.line_height
5185 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
5186 );
5187 let mut quad = fill(Bounds { origin, size }, highlight.background);
5188 if let Some(border_color) = highlight.border {
5189 quad.border_color = border_color;
5190 quad.border_widths = edges
5191 }
5192 window.paint_quad(quad);
5193 };
5194
5195 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
5196 None;
5197 for (&new_row, &new_background) in &layout.highlighted_rows {
5198 match &mut current_paint {
5199 &mut Some((current_background, ref mut current_range, mut edges)) => {
5200 let new_range_started = current_background != new_background
5201 || current_range.end.next_row() != new_row;
5202 if new_range_started {
5203 if current_range.end.next_row() == new_row {
5204 edges.bottom = px(0.);
5205 };
5206 paint_highlight(
5207 current_range.start,
5208 current_range.end,
5209 current_background,
5210 edges,
5211 );
5212 let edges = Edges {
5213 top: if current_range.end.next_row() != new_row {
5214 px(1.)
5215 } else {
5216 px(0.)
5217 },
5218 bottom: px(1.),
5219 ..Default::default()
5220 };
5221 current_paint = Some((new_background, new_row..new_row, edges));
5222 continue;
5223 } else {
5224 current_range.end = current_range.end.next_row();
5225 }
5226 }
5227 None => {
5228 let edges = Edges {
5229 top: px(1.),
5230 bottom: px(1.),
5231 ..Default::default()
5232 };
5233 current_paint = Some((new_background, new_row..new_row, edges))
5234 }
5235 };
5236 }
5237 if let Some((color, range, edges)) = current_paint {
5238 paint_highlight(range.start, range.end, color, edges);
5239 }
5240
5241 let scroll_left =
5242 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
5243
5244 for (wrap_position, active) in layout.wrap_guides.iter() {
5245 let x = (layout.position_map.text_hitbox.origin.x
5246 + *wrap_position
5247 + layout.position_map.em_width / 2.)
5248 - scroll_left;
5249
5250 let show_scrollbars = layout
5251 .scrollbars_layout
5252 .as_ref()
5253 .map_or(false, |layout| layout.visible);
5254
5255 if x < layout.position_map.text_hitbox.origin.x
5256 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
5257 {
5258 continue;
5259 }
5260
5261 let color = if *active {
5262 cx.theme().colors().editor_active_wrap_guide
5263 } else {
5264 cx.theme().colors().editor_wrap_guide
5265 };
5266 window.paint_quad(fill(
5267 Bounds {
5268 origin: point(x, layout.position_map.text_hitbox.origin.y),
5269 size: size(px(1.), layout.position_map.text_hitbox.size.height),
5270 },
5271 color,
5272 ));
5273 }
5274 }
5275 })
5276 }
5277
5278 fn paint_indent_guides(
5279 &mut self,
5280 layout: &mut EditorLayout,
5281 window: &mut Window,
5282 cx: &mut App,
5283 ) {
5284 let Some(indent_guides) = &layout.indent_guides else {
5285 return;
5286 };
5287
5288 let faded_color = |color: Hsla, alpha: f32| {
5289 let mut faded = color;
5290 faded.a = alpha;
5291 faded
5292 };
5293
5294 for indent_guide in indent_guides {
5295 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
5296 let settings = indent_guide.settings;
5297
5298 // TODO fixed for now, expose them through themes later
5299 const INDENT_AWARE_ALPHA: f32 = 0.2;
5300 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
5301 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
5302 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
5303
5304 let line_color = match (settings.coloring, indent_guide.active) {
5305 (IndentGuideColoring::Disabled, _) => None,
5306 (IndentGuideColoring::Fixed, false) => {
5307 Some(cx.theme().colors().editor_indent_guide)
5308 }
5309 (IndentGuideColoring::Fixed, true) => {
5310 Some(cx.theme().colors().editor_indent_guide_active)
5311 }
5312 (IndentGuideColoring::IndentAware, false) => {
5313 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
5314 }
5315 (IndentGuideColoring::IndentAware, true) => {
5316 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
5317 }
5318 };
5319
5320 let background_color = match (settings.background_coloring, indent_guide.active) {
5321 (IndentGuideBackgroundColoring::Disabled, _) => None,
5322 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
5323 indent_accent_colors,
5324 INDENT_AWARE_BACKGROUND_ALPHA,
5325 )),
5326 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
5327 indent_accent_colors,
5328 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
5329 )),
5330 };
5331
5332 let requested_line_width = if indent_guide.active {
5333 settings.active_line_width
5334 } else {
5335 settings.line_width
5336 }
5337 .clamp(1, 10);
5338 let mut line_indicator_width = 0.;
5339 if let Some(color) = line_color {
5340 window.paint_quad(fill(
5341 Bounds {
5342 origin: indent_guide.origin,
5343 size: size(px(requested_line_width as f32), indent_guide.length),
5344 },
5345 color,
5346 ));
5347 line_indicator_width = requested_line_width as f32;
5348 }
5349
5350 if let Some(color) = background_color {
5351 let width = indent_guide.single_indent_width - px(line_indicator_width);
5352 window.paint_quad(fill(
5353 Bounds {
5354 origin: point(
5355 indent_guide.origin.x + px(line_indicator_width),
5356 indent_guide.origin.y,
5357 ),
5358 size: size(width, indent_guide.length),
5359 },
5360 color,
5361 ));
5362 }
5363 }
5364 }
5365
5366 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5367 let is_singleton = self.editor.read(cx).is_singleton(cx);
5368
5369 let line_height = layout.position_map.line_height;
5370 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
5371
5372 for LineNumberLayout {
5373 shaped_line,
5374 hitbox,
5375 } in layout.line_numbers.values()
5376 {
5377 let Some(hitbox) = hitbox else {
5378 continue;
5379 };
5380
5381 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
5382 let color = cx.theme().colors().editor_hover_line_number;
5383
5384 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
5385 line.paint(hitbox.origin, line_height, window, cx).log_err()
5386 } else {
5387 shaped_line
5388 .paint(hitbox.origin, line_height, window, cx)
5389 .log_err()
5390 }) else {
5391 continue;
5392 };
5393
5394 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
5395 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
5396 if is_singleton {
5397 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
5398 } else {
5399 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
5400 }
5401 }
5402 }
5403
5404 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5405 if layout.display_hunks.is_empty() {
5406 return;
5407 }
5408
5409 let line_height = layout.position_map.line_height;
5410 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5411 for (hunk, hitbox) in &layout.display_hunks {
5412 let hunk_to_paint = match hunk {
5413 DisplayDiffHunk::Folded { .. } => {
5414 let hunk_bounds = Self::diff_hunk_bounds(
5415 &layout.position_map.snapshot,
5416 line_height,
5417 layout.gutter_hitbox.bounds,
5418 &hunk,
5419 );
5420 Some((
5421 hunk_bounds,
5422 cx.theme().colors().version_control_modified,
5423 Corners::all(px(0.)),
5424 DiffHunkStatus::modified_none(),
5425 ))
5426 }
5427 DisplayDiffHunk::Unfolded {
5428 status,
5429 display_row_range,
5430 ..
5431 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
5432 DiffHunkStatusKind::Added => (
5433 hunk_hitbox.bounds,
5434 cx.theme().colors().version_control_added,
5435 Corners::all(px(0.)),
5436 *status,
5437 ),
5438 DiffHunkStatusKind::Modified => (
5439 hunk_hitbox.bounds,
5440 cx.theme().colors().version_control_modified,
5441 Corners::all(px(0.)),
5442 *status,
5443 ),
5444 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
5445 hunk_hitbox.bounds,
5446 cx.theme().colors().version_control_deleted,
5447 Corners::all(px(0.)),
5448 *status,
5449 ),
5450 DiffHunkStatusKind::Deleted => (
5451 Bounds::new(
5452 point(
5453 hunk_hitbox.origin.x - hunk_hitbox.size.width,
5454 hunk_hitbox.origin.y,
5455 ),
5456 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
5457 ),
5458 cx.theme().colors().version_control_deleted,
5459 Corners::all(1. * line_height),
5460 *status,
5461 ),
5462 }),
5463 };
5464
5465 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
5466 // Flatten the background color with the editor color to prevent
5467 // elements below transparent hunks from showing through
5468 let flattened_background_color = cx
5469 .theme()
5470 .colors()
5471 .editor_background
5472 .blend(background_color);
5473
5474 if !Self::diff_hunk_hollow(status, cx) {
5475 window.paint_quad(quad(
5476 hunk_bounds,
5477 corner_radii,
5478 flattened_background_color,
5479 Edges::default(),
5480 transparent_black(),
5481 BorderStyle::default(),
5482 ));
5483 } else {
5484 let flattened_unstaged_background_color = cx
5485 .theme()
5486 .colors()
5487 .editor_background
5488 .blend(background_color.opacity(0.3));
5489
5490 window.paint_quad(quad(
5491 hunk_bounds,
5492 corner_radii,
5493 flattened_unstaged_background_color,
5494 Edges::all(Pixels(1.0)),
5495 flattened_background_color,
5496 BorderStyle::Solid,
5497 ));
5498 }
5499 }
5500 }
5501 });
5502 }
5503
5504 fn gutter_strip_width(line_height: Pixels) -> Pixels {
5505 (0.275 * line_height).floor()
5506 }
5507
5508 fn diff_hunk_bounds(
5509 snapshot: &EditorSnapshot,
5510 line_height: Pixels,
5511 gutter_bounds: Bounds<Pixels>,
5512 hunk: &DisplayDiffHunk,
5513 ) -> Bounds<Pixels> {
5514 let scroll_position = snapshot.scroll_position();
5515 let scroll_top = scroll_position.y * line_height;
5516 let gutter_strip_width = Self::gutter_strip_width(line_height);
5517
5518 match hunk {
5519 DisplayDiffHunk::Folded { display_row, .. } => {
5520 let start_y = display_row.as_f32() * line_height - scroll_top;
5521 let end_y = start_y + line_height;
5522 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5523 let highlight_size = size(gutter_strip_width, end_y - start_y);
5524 Bounds::new(highlight_origin, highlight_size)
5525 }
5526 DisplayDiffHunk::Unfolded {
5527 display_row_range,
5528 status,
5529 ..
5530 } => {
5531 if status.is_deleted() && display_row_range.is_empty() {
5532 let row = display_row_range.start;
5533
5534 let offset = line_height / 2.;
5535 let start_y = row.as_f32() * line_height - offset - scroll_top;
5536 let end_y = start_y + line_height;
5537
5538 let width = (0.35 * line_height).floor();
5539 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5540 let highlight_size = size(width, end_y - start_y);
5541 Bounds::new(highlight_origin, highlight_size)
5542 } else {
5543 let start_row = display_row_range.start;
5544 let end_row = display_row_range.end;
5545 // If we're in a multibuffer, row range span might include an
5546 // excerpt header, so if we were to draw the marker straight away,
5547 // the hunk might include the rows of that header.
5548 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
5549 // Instead, we simply check whether the range we're dealing with includes
5550 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
5551 let end_row_in_current_excerpt = snapshot
5552 .blocks_in_range(start_row..end_row)
5553 .find_map(|(start_row, block)| {
5554 if matches!(block, Block::ExcerptBoundary { .. }) {
5555 Some(start_row)
5556 } else {
5557 None
5558 }
5559 })
5560 .unwrap_or(end_row);
5561
5562 let start_y = start_row.as_f32() * line_height - scroll_top;
5563 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
5564
5565 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5566 let highlight_size = size(gutter_strip_width, end_y - start_y);
5567 Bounds::new(highlight_origin, highlight_size)
5568 }
5569 }
5570 }
5571 }
5572
5573 fn paint_gutter_indicators(
5574 &self,
5575 layout: &mut EditorLayout,
5576 window: &mut Window,
5577 cx: &mut App,
5578 ) {
5579 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5580 window.with_element_namespace("crease_toggles", |window| {
5581 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
5582 crease_toggle.paint(window, cx);
5583 }
5584 });
5585
5586 window.with_element_namespace("expand_toggles", |window| {
5587 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
5588 expand_toggle.paint(window, cx);
5589 }
5590 });
5591
5592 for breakpoint in layout.breakpoints.iter_mut() {
5593 breakpoint.paint(window, cx);
5594 }
5595
5596 for test_indicator in layout.test_indicators.iter_mut() {
5597 test_indicator.paint(window, cx);
5598 }
5599 });
5600 }
5601
5602 fn paint_gutter_highlights(
5603 &self,
5604 layout: &mut EditorLayout,
5605 window: &mut Window,
5606 cx: &mut App,
5607 ) {
5608 for (_, hunk_hitbox) in &layout.display_hunks {
5609 if let Some(hunk_hitbox) = hunk_hitbox {
5610 if !self
5611 .editor
5612 .read(cx)
5613 .buffer()
5614 .read(cx)
5615 .all_diff_hunks_expanded()
5616 {
5617 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
5618 }
5619 }
5620 }
5621
5622 let show_git_gutter = layout
5623 .position_map
5624 .snapshot
5625 .show_git_diff_gutter
5626 .unwrap_or_else(|| {
5627 matches!(
5628 ProjectSettings::get_global(cx).git.git_gutter,
5629 Some(GitGutterSetting::TrackedFiles)
5630 )
5631 });
5632 if show_git_gutter {
5633 Self::paint_gutter_diff_hunks(layout, window, cx)
5634 }
5635
5636 let highlight_width = 0.275 * layout.position_map.line_height;
5637 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
5638 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5639 for (range, color) in &layout.highlighted_gutter_ranges {
5640 let start_row = if range.start.row() < layout.visible_display_row_range.start {
5641 layout.visible_display_row_range.start - DisplayRow(1)
5642 } else {
5643 range.start.row()
5644 };
5645 let end_row = if range.end.row() > layout.visible_display_row_range.end {
5646 layout.visible_display_row_range.end + DisplayRow(1)
5647 } else {
5648 range.end.row()
5649 };
5650
5651 let start_y = layout.gutter_hitbox.top()
5652 + start_row.0 as f32 * layout.position_map.line_height
5653 - layout.position_map.scroll_pixel_position.y;
5654 let end_y = layout.gutter_hitbox.top()
5655 + (end_row.0 + 1) as f32 * layout.position_map.line_height
5656 - layout.position_map.scroll_pixel_position.y;
5657 let bounds = Bounds::from_corners(
5658 point(layout.gutter_hitbox.left(), start_y),
5659 point(layout.gutter_hitbox.left() + highlight_width, end_y),
5660 );
5661 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
5662 }
5663 });
5664 }
5665
5666 fn paint_blamed_display_rows(
5667 &self,
5668 layout: &mut EditorLayout,
5669 window: &mut Window,
5670 cx: &mut App,
5671 ) {
5672 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
5673 return;
5674 };
5675
5676 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5677 for mut blame_element in blamed_display_rows.into_iter() {
5678 blame_element.paint(window, cx);
5679 }
5680 })
5681 }
5682
5683 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5684 window.with_content_mask(
5685 Some(ContentMask {
5686 bounds: layout.position_map.text_hitbox.bounds,
5687 }),
5688 |window| {
5689 let editor = self.editor.read(cx);
5690 if editor.mouse_cursor_hidden {
5691 window.set_window_cursor_style(CursorStyle::None);
5692 } else if matches!(
5693 editor.selection_drag_state,
5694 SelectionDragState::Dragging { .. }
5695 ) {
5696 window
5697 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
5698 } else if editor
5699 .hovered_link_state
5700 .as_ref()
5701 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
5702 {
5703 window.set_cursor_style(
5704 CursorStyle::PointingHand,
5705 &layout.position_map.text_hitbox,
5706 );
5707 } else {
5708 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
5709 };
5710
5711 self.paint_lines_background(layout, window, cx);
5712 let invisible_display_ranges = self.paint_highlights(layout, window);
5713 self.paint_document_colors(layout, window);
5714 self.paint_lines(&invisible_display_ranges, layout, window, cx);
5715 self.paint_redactions(layout, window);
5716 self.paint_cursors(layout, window, cx);
5717 self.paint_inline_diagnostics(layout, window, cx);
5718 self.paint_inline_blame(layout, window, cx);
5719 self.paint_inline_code_actions(layout, window, cx);
5720 self.paint_diff_hunk_controls(layout, window, cx);
5721 window.with_element_namespace("crease_trailers", |window| {
5722 for trailer in layout.crease_trailers.iter_mut().flatten() {
5723 trailer.element.paint(window, cx);
5724 }
5725 });
5726 },
5727 )
5728 }
5729
5730 fn paint_highlights(
5731 &mut self,
5732 layout: &mut EditorLayout,
5733 window: &mut Window,
5734 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
5735 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5736 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
5737 let line_end_overshoot = 0.15 * layout.position_map.line_height;
5738 for (range, color) in &layout.highlighted_ranges {
5739 self.paint_highlighted_range(
5740 range.clone(),
5741 true,
5742 *color,
5743 Pixels::ZERO,
5744 line_end_overshoot,
5745 layout,
5746 window,
5747 );
5748 }
5749
5750 let corner_radius = 0.15 * layout.position_map.line_height;
5751
5752 for (player_color, selections) in &layout.selections {
5753 for selection in selections.iter() {
5754 self.paint_highlighted_range(
5755 selection.range.clone(),
5756 true,
5757 player_color.selection,
5758 corner_radius,
5759 corner_radius * 2.,
5760 layout,
5761 window,
5762 );
5763
5764 if selection.is_local && !selection.range.is_empty() {
5765 invisible_display_ranges.push(selection.range.clone());
5766 }
5767 }
5768 }
5769 invisible_display_ranges
5770 })
5771 }
5772
5773 fn paint_lines(
5774 &mut self,
5775 invisible_display_ranges: &[Range<DisplayPoint>],
5776 layout: &mut EditorLayout,
5777 window: &mut Window,
5778 cx: &mut App,
5779 ) {
5780 let whitespace_setting = self
5781 .editor
5782 .read(cx)
5783 .buffer
5784 .read(cx)
5785 .language_settings(cx)
5786 .show_whitespaces;
5787
5788 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
5789 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
5790 line_with_invisibles.draw(
5791 layout,
5792 row,
5793 layout.content_origin,
5794 whitespace_setting,
5795 invisible_display_ranges,
5796 window,
5797 cx,
5798 )
5799 }
5800
5801 for line_element in &mut layout.line_elements {
5802 line_element.paint(window, cx);
5803 }
5804 }
5805
5806 fn paint_lines_background(
5807 &mut self,
5808 layout: &mut EditorLayout,
5809 window: &mut Window,
5810 cx: &mut App,
5811 ) {
5812 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
5813 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
5814 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
5815 }
5816 }
5817
5818 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
5819 if layout.redacted_ranges.is_empty() {
5820 return;
5821 }
5822
5823 let line_end_overshoot = layout.line_end_overshoot();
5824
5825 // A softer than perfect black
5826 let redaction_color = gpui::rgb(0x0e1111);
5827
5828 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5829 for range in layout.redacted_ranges.iter() {
5830 self.paint_highlighted_range(
5831 range.clone(),
5832 true,
5833 redaction_color.into(),
5834 Pixels::ZERO,
5835 line_end_overshoot,
5836 layout,
5837 window,
5838 );
5839 }
5840 });
5841 }
5842
5843 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
5844 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
5845 return;
5846 };
5847 if image_colors.is_empty()
5848 || colors_render_mode == &DocumentColorsRenderMode::None
5849 || colors_render_mode == &DocumentColorsRenderMode::Inlay
5850 {
5851 return;
5852 }
5853
5854 let line_end_overshoot = layout.line_end_overshoot();
5855
5856 for (range, color) in image_colors {
5857 match colors_render_mode {
5858 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
5859 DocumentColorsRenderMode::Background => {
5860 self.paint_highlighted_range(
5861 range.clone(),
5862 true,
5863 *color,
5864 Pixels::ZERO,
5865 line_end_overshoot,
5866 layout,
5867 window,
5868 );
5869 }
5870 DocumentColorsRenderMode::Border => {
5871 self.paint_highlighted_range(
5872 range.clone(),
5873 false,
5874 *color,
5875 Pixels::ZERO,
5876 line_end_overshoot,
5877 layout,
5878 window,
5879 );
5880 }
5881 }
5882 }
5883 }
5884
5885 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5886 for cursor in &mut layout.visible_cursors {
5887 cursor.paint(layout.content_origin, window, cx);
5888 }
5889 }
5890
5891 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5892 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
5893 return;
5894 };
5895 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
5896
5897 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
5898 let hitbox = &scrollbar_layout.hitbox;
5899 if scrollbars_layout.visible {
5900 let scrollbar_edges = match axis {
5901 ScrollbarAxis::Horizontal => Edges {
5902 top: Pixels::ZERO,
5903 right: Pixels::ZERO,
5904 bottom: Pixels::ZERO,
5905 left: Pixels::ZERO,
5906 },
5907 ScrollbarAxis::Vertical => Edges {
5908 top: Pixels::ZERO,
5909 right: Pixels::ZERO,
5910 bottom: Pixels::ZERO,
5911 left: ScrollbarLayout::BORDER_WIDTH,
5912 },
5913 };
5914
5915 window.paint_layer(hitbox.bounds, |window| {
5916 window.paint_quad(quad(
5917 hitbox.bounds,
5918 Corners::default(),
5919 cx.theme().colors().scrollbar_track_background,
5920 scrollbar_edges,
5921 cx.theme().colors().scrollbar_track_border,
5922 BorderStyle::Solid,
5923 ));
5924
5925 if axis == ScrollbarAxis::Vertical {
5926 let fast_markers =
5927 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5928 // Refresh slow scrollbar markers in the background. Below, we
5929 // paint whatever markers have already been computed.
5930 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5931
5932 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5933 for marker in markers.iter().chain(&fast_markers) {
5934 let mut marker = marker.clone();
5935 marker.bounds.origin += hitbox.origin;
5936 window.paint_quad(marker);
5937 }
5938 }
5939
5940 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
5941 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
5942 ScrollbarThumbState::Dragging => {
5943 cx.theme().colors().scrollbar_thumb_active_background
5944 }
5945 ScrollbarThumbState::Hovered => {
5946 cx.theme().colors().scrollbar_thumb_hover_background
5947 }
5948 ScrollbarThumbState::Idle => {
5949 cx.theme().colors().scrollbar_thumb_background
5950 }
5951 };
5952 window.paint_quad(quad(
5953 thumb_bounds,
5954 Corners::default(),
5955 scrollbar_thumb_color,
5956 scrollbar_edges,
5957 cx.theme().colors().scrollbar_thumb_border,
5958 BorderStyle::Solid,
5959 ));
5960
5961 if any_scrollbar_dragged {
5962 window.set_window_cursor_style(CursorStyle::Arrow);
5963 } else {
5964 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5965 }
5966 }
5967 })
5968 }
5969 }
5970
5971 window.on_mouse_event({
5972 let editor = self.editor.clone();
5973 let scrollbars_layout = scrollbars_layout.clone();
5974
5975 let mut mouse_position = window.mouse_position();
5976 move |event: &MouseMoveEvent, phase, window, cx| {
5977 if phase == DispatchPhase::Capture {
5978 return;
5979 }
5980
5981 editor.update(cx, |editor, cx| {
5982 if let Some((scrollbar_layout, axis)) = event
5983 .pressed_button
5984 .filter(|button| *button == MouseButton::Left)
5985 .and(editor.scroll_manager.dragging_scrollbar_axis())
5986 .and_then(|axis| {
5987 scrollbars_layout
5988 .iter_scrollbars()
5989 .find(|(_, a)| *a == axis)
5990 })
5991 {
5992 let ScrollbarLayout {
5993 hitbox,
5994 text_unit_size,
5995 ..
5996 } = scrollbar_layout;
5997
5998 let old_position = mouse_position.along(axis);
5999 let new_position = event.position.along(axis);
6000 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
6001 .contains(&old_position)
6002 {
6003 let position = editor.scroll_position(cx).apply_along(axis, |p| {
6004 (p + (new_position - old_position) / *text_unit_size).max(0.)
6005 });
6006 editor.set_scroll_position(position, window, cx);
6007 }
6008
6009 editor.scroll_manager.show_scrollbars(window, cx);
6010 cx.stop_propagation();
6011 } else if let Some((layout, axis)) = scrollbars_layout
6012 .get_hovered_axis(window)
6013 .filter(|_| !event.dragging())
6014 {
6015 if layout.thumb_hovered(&event.position) {
6016 editor
6017 .scroll_manager
6018 .set_hovered_scroll_thumb_axis(axis, cx);
6019 } else {
6020 editor.scroll_manager.reset_scrollbar_state(cx);
6021 }
6022
6023 editor.scroll_manager.show_scrollbars(window, cx);
6024 } else {
6025 editor.scroll_manager.reset_scrollbar_state(cx);
6026 }
6027
6028 mouse_position = event.position;
6029 })
6030 }
6031 });
6032
6033 if any_scrollbar_dragged {
6034 window.on_mouse_event({
6035 let editor = self.editor.clone();
6036 move |_: &MouseUpEvent, phase, window, cx| {
6037 if phase == DispatchPhase::Capture {
6038 return;
6039 }
6040
6041 editor.update(cx, |editor, cx| {
6042 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
6043 editor
6044 .scroll_manager
6045 .set_hovered_scroll_thumb_axis(axis, cx);
6046 } else {
6047 editor.scroll_manager.reset_scrollbar_state(cx);
6048 }
6049 cx.stop_propagation();
6050 });
6051 }
6052 });
6053 } else {
6054 window.on_mouse_event({
6055 let editor = self.editor.clone();
6056
6057 move |event: &MouseDownEvent, phase, window, cx| {
6058 if phase == DispatchPhase::Capture {
6059 return;
6060 }
6061 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
6062 else {
6063 return;
6064 };
6065
6066 let ScrollbarLayout {
6067 hitbox,
6068 visible_range,
6069 text_unit_size,
6070 thumb_bounds,
6071 ..
6072 } = scrollbar_layout;
6073
6074 let Some(thumb_bounds) = thumb_bounds else {
6075 return;
6076 };
6077
6078 editor.update(cx, |editor, cx| {
6079 editor
6080 .scroll_manager
6081 .set_dragged_scroll_thumb_axis(axis, cx);
6082
6083 let event_position = event.position.along(axis);
6084
6085 if event_position < thumb_bounds.origin.along(axis)
6086 || thumb_bounds.bottom_right().along(axis) < event_position
6087 {
6088 let center_position = ((event_position - hitbox.origin.along(axis))
6089 / *text_unit_size)
6090 .round() as u32;
6091 let start_position = center_position.saturating_sub(
6092 (visible_range.end - visible_range.start) as u32 / 2,
6093 );
6094
6095 let position = editor
6096 .scroll_position(cx)
6097 .apply_along(axis, |_| start_position as f32);
6098
6099 editor.set_scroll_position(position, window, cx);
6100 } else {
6101 editor.scroll_manager.show_scrollbars(window, cx);
6102 }
6103
6104 cx.stop_propagation();
6105 });
6106 }
6107 });
6108 }
6109 }
6110
6111 fn collect_fast_scrollbar_markers(
6112 &self,
6113 layout: &EditorLayout,
6114 scrollbar_layout: &ScrollbarLayout,
6115 cx: &mut App,
6116 ) -> Vec<PaintQuad> {
6117 const LIMIT: usize = 100;
6118 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
6119 return vec![];
6120 }
6121 let cursor_ranges = layout
6122 .cursors
6123 .iter()
6124 .map(|(point, color)| ColoredRange {
6125 start: point.row(),
6126 end: point.row(),
6127 color: *color,
6128 })
6129 .collect_vec();
6130 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
6131 }
6132
6133 fn refresh_slow_scrollbar_markers(
6134 &self,
6135 layout: &EditorLayout,
6136 scrollbar_layout: &ScrollbarLayout,
6137 window: &mut Window,
6138 cx: &mut App,
6139 ) {
6140 self.editor.update(cx, |editor, cx| {
6141 if !editor.is_singleton(cx)
6142 || !editor
6143 .scrollbar_marker_state
6144 .should_refresh(scrollbar_layout.hitbox.size)
6145 {
6146 return;
6147 }
6148
6149 let scrollbar_layout = scrollbar_layout.clone();
6150 let background_highlights = editor.background_highlights.clone();
6151 let snapshot = layout.position_map.snapshot.clone();
6152 let theme = cx.theme().clone();
6153 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
6154
6155 editor.scrollbar_marker_state.dirty = false;
6156 editor.scrollbar_marker_state.pending_refresh =
6157 Some(cx.spawn_in(window, async move |editor, cx| {
6158 let scrollbar_size = scrollbar_layout.hitbox.size;
6159 let scrollbar_markers = cx
6160 .background_spawn(async move {
6161 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
6162 let mut marker_quads = Vec::new();
6163 if scrollbar_settings.git_diff {
6164 let marker_row_ranges =
6165 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
6166 let start_display_row =
6167 MultiBufferPoint::new(hunk.row_range.start.0, 0)
6168 .to_display_point(&snapshot.display_snapshot)
6169 .row();
6170 let mut end_display_row =
6171 MultiBufferPoint::new(hunk.row_range.end.0, 0)
6172 .to_display_point(&snapshot.display_snapshot)
6173 .row();
6174 if end_display_row != start_display_row {
6175 end_display_row.0 -= 1;
6176 }
6177 let color = match &hunk.status().kind {
6178 DiffHunkStatusKind::Added => {
6179 theme.colors().version_control_added
6180 }
6181 DiffHunkStatusKind::Modified => {
6182 theme.colors().version_control_modified
6183 }
6184 DiffHunkStatusKind::Deleted => {
6185 theme.colors().version_control_deleted
6186 }
6187 };
6188 ColoredRange {
6189 start: start_display_row,
6190 end: end_display_row,
6191 color,
6192 }
6193 });
6194
6195 marker_quads.extend(
6196 scrollbar_layout
6197 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
6198 );
6199 }
6200
6201 for (background_highlight_id, (_, background_ranges)) in
6202 background_highlights.iter()
6203 {
6204 let is_search_highlights = *background_highlight_id
6205 == HighlightKey::Type(TypeId::of::<BufferSearchHighlights>());
6206 let is_text_highlights = *background_highlight_id
6207 == HighlightKey::Type(TypeId::of::<SelectedTextHighlight>());
6208 let is_symbol_occurrences = *background_highlight_id
6209 == HighlightKey::Type(TypeId::of::<DocumentHighlightRead>())
6210 || *background_highlight_id
6211 == HighlightKey::Type(
6212 TypeId::of::<DocumentHighlightWrite>(),
6213 );
6214 if (is_search_highlights && scrollbar_settings.search_results)
6215 || (is_text_highlights && scrollbar_settings.selected_text)
6216 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
6217 {
6218 let mut color = theme.status().info;
6219 if is_symbol_occurrences {
6220 color.fade_out(0.5);
6221 }
6222 let marker_row_ranges = background_ranges.iter().map(|range| {
6223 let display_start = range
6224 .start
6225 .to_display_point(&snapshot.display_snapshot);
6226 let display_end =
6227 range.end.to_display_point(&snapshot.display_snapshot);
6228 ColoredRange {
6229 start: display_start.row(),
6230 end: display_end.row(),
6231 color,
6232 }
6233 });
6234 marker_quads.extend(
6235 scrollbar_layout
6236 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
6237 );
6238 }
6239 }
6240
6241 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
6242 let diagnostics = snapshot
6243 .buffer_snapshot
6244 .diagnostics_in_range::<Point>(Point::zero()..max_point)
6245 // Don't show diagnostics the user doesn't care about
6246 .filter(|diagnostic| {
6247 match (
6248 scrollbar_settings.diagnostics,
6249 diagnostic.diagnostic.severity,
6250 ) {
6251 (ScrollbarDiagnostics::All, _) => true,
6252 (
6253 ScrollbarDiagnostics::Error,
6254 lsp::DiagnosticSeverity::ERROR,
6255 ) => true,
6256 (
6257 ScrollbarDiagnostics::Warning,
6258 lsp::DiagnosticSeverity::ERROR
6259 | lsp::DiagnosticSeverity::WARNING,
6260 ) => true,
6261 (
6262 ScrollbarDiagnostics::Information,
6263 lsp::DiagnosticSeverity::ERROR
6264 | lsp::DiagnosticSeverity::WARNING
6265 | lsp::DiagnosticSeverity::INFORMATION,
6266 ) => true,
6267 (_, _) => false,
6268 }
6269 })
6270 // We want to sort by severity, in order to paint the most severe diagnostics last.
6271 .sorted_by_key(|diagnostic| {
6272 std::cmp::Reverse(diagnostic.diagnostic.severity)
6273 });
6274
6275 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
6276 let start_display = diagnostic
6277 .range
6278 .start
6279 .to_display_point(&snapshot.display_snapshot);
6280 let end_display = diagnostic
6281 .range
6282 .end
6283 .to_display_point(&snapshot.display_snapshot);
6284 let color = match diagnostic.diagnostic.severity {
6285 lsp::DiagnosticSeverity::ERROR => theme.status().error,
6286 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
6287 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
6288 _ => theme.status().hint,
6289 };
6290 ColoredRange {
6291 start: start_display.row(),
6292 end: end_display.row(),
6293 color,
6294 }
6295 });
6296 marker_quads.extend(
6297 scrollbar_layout
6298 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
6299 );
6300 }
6301
6302 Arc::from(marker_quads)
6303 })
6304 .await;
6305
6306 editor.update(cx, |editor, cx| {
6307 editor.scrollbar_marker_state.markers = scrollbar_markers;
6308 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
6309 editor.scrollbar_marker_state.pending_refresh = None;
6310 cx.notify();
6311 })?;
6312
6313 Ok(())
6314 }));
6315 });
6316 }
6317
6318 fn paint_highlighted_range(
6319 &self,
6320 range: Range<DisplayPoint>,
6321 fill: bool,
6322 color: Hsla,
6323 corner_radius: Pixels,
6324 line_end_overshoot: Pixels,
6325 layout: &EditorLayout,
6326 window: &mut Window,
6327 ) {
6328 let start_row = layout.visible_display_row_range.start;
6329 let end_row = layout.visible_display_row_range.end;
6330 if range.start != range.end {
6331 let row_range = if range.end.column() == 0 {
6332 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
6333 } else {
6334 cmp::max(range.start.row(), start_row)
6335 ..cmp::min(range.end.row().next_row(), end_row)
6336 };
6337
6338 let highlighted_range = HighlightedRange {
6339 color,
6340 line_height: layout.position_map.line_height,
6341 corner_radius,
6342 start_y: layout.content_origin.y
6343 + row_range.start.as_f32() * layout.position_map.line_height
6344 - layout.position_map.scroll_pixel_position.y,
6345 lines: row_range
6346 .iter_rows()
6347 .map(|row| {
6348 let line_layout =
6349 &layout.position_map.line_layouts[row.minus(start_row) as usize];
6350 HighlightedRangeLine {
6351 start_x: if row == range.start.row() {
6352 layout.content_origin.x
6353 + line_layout.x_for_index(range.start.column() as usize)
6354 - layout.position_map.scroll_pixel_position.x
6355 } else {
6356 layout.content_origin.x
6357 - layout.position_map.scroll_pixel_position.x
6358 },
6359 end_x: if row == range.end.row() {
6360 layout.content_origin.x
6361 + line_layout.x_for_index(range.end.column() as usize)
6362 - layout.position_map.scroll_pixel_position.x
6363 } else {
6364 layout.content_origin.x + line_layout.width + line_end_overshoot
6365 - layout.position_map.scroll_pixel_position.x
6366 },
6367 }
6368 })
6369 .collect(),
6370 };
6371
6372 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
6373 }
6374 }
6375
6376 fn paint_inline_diagnostics(
6377 &mut self,
6378 layout: &mut EditorLayout,
6379 window: &mut Window,
6380 cx: &mut App,
6381 ) {
6382 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
6383 inline_diagnostic.1.paint(window, cx);
6384 }
6385 }
6386
6387 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6388 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
6389 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6390 blame_layout.element.paint(window, cx);
6391 })
6392 }
6393 }
6394
6395 fn paint_inline_code_actions(
6396 &mut self,
6397 layout: &mut EditorLayout,
6398 window: &mut Window,
6399 cx: &mut App,
6400 ) {
6401 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
6402 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6403 inline_code_actions.paint(window, cx);
6404 })
6405 }
6406 }
6407
6408 fn paint_diff_hunk_controls(
6409 &mut self,
6410 layout: &mut EditorLayout,
6411 window: &mut Window,
6412 cx: &mut App,
6413 ) {
6414 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
6415 diff_hunk_control.paint(window, cx);
6416 }
6417 }
6418
6419 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6420 if let Some(mut layout) = layout.minimap.take() {
6421 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
6422 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
6423
6424 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
6425 window.with_element_namespace("minimap", |window| {
6426 layout.minimap.paint(window, cx);
6427 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
6428 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
6429 ScrollbarThumbState::Idle => {
6430 cx.theme().colors().minimap_thumb_background
6431 }
6432 ScrollbarThumbState::Hovered => {
6433 cx.theme().colors().minimap_thumb_hover_background
6434 }
6435 ScrollbarThumbState::Dragging => {
6436 cx.theme().colors().minimap_thumb_active_background
6437 }
6438 };
6439 let minimap_thumb_border = match layout.thumb_border_style {
6440 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
6441 MinimapThumbBorder::LeftOnly => Edges {
6442 left: ScrollbarLayout::BORDER_WIDTH,
6443 ..Default::default()
6444 },
6445 MinimapThumbBorder::LeftOpen => Edges {
6446 right: ScrollbarLayout::BORDER_WIDTH,
6447 top: ScrollbarLayout::BORDER_WIDTH,
6448 bottom: ScrollbarLayout::BORDER_WIDTH,
6449 ..Default::default()
6450 },
6451 MinimapThumbBorder::RightOpen => Edges {
6452 left: ScrollbarLayout::BORDER_WIDTH,
6453 top: ScrollbarLayout::BORDER_WIDTH,
6454 bottom: ScrollbarLayout::BORDER_WIDTH,
6455 ..Default::default()
6456 },
6457 MinimapThumbBorder::None => Default::default(),
6458 };
6459
6460 window.paint_layer(minimap_hitbox.bounds, |window| {
6461 window.paint_quad(quad(
6462 thumb_bounds,
6463 Corners::default(),
6464 minimap_thumb_color,
6465 minimap_thumb_border,
6466 cx.theme().colors().minimap_thumb_border,
6467 BorderStyle::Solid,
6468 ));
6469 });
6470 }
6471 });
6472 });
6473
6474 if dragging_minimap {
6475 window.set_window_cursor_style(CursorStyle::Arrow);
6476 } else {
6477 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
6478 }
6479
6480 let minimap_axis = ScrollbarAxis::Vertical;
6481 let pixels_per_line = (minimap_hitbox.size.height / layout.max_scroll_top)
6482 .min(layout.minimap_line_height);
6483
6484 let mut mouse_position = window.mouse_position();
6485
6486 window.on_mouse_event({
6487 let editor = self.editor.clone();
6488
6489 let minimap_hitbox = minimap_hitbox.clone();
6490
6491 move |event: &MouseMoveEvent, phase, window, cx| {
6492 if phase == DispatchPhase::Capture {
6493 return;
6494 }
6495
6496 editor.update(cx, |editor, cx| {
6497 if event.pressed_button == Some(MouseButton::Left)
6498 && editor.scroll_manager.is_dragging_minimap()
6499 {
6500 let old_position = mouse_position.along(minimap_axis);
6501 let new_position = event.position.along(minimap_axis);
6502 if (minimap_hitbox.origin.along(minimap_axis)
6503 ..minimap_hitbox.bottom_right().along(minimap_axis))
6504 .contains(&old_position)
6505 {
6506 let position =
6507 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
6508 (p + (new_position - old_position) / pixels_per_line)
6509 .max(0.)
6510 });
6511 editor.set_scroll_position(position, window, cx);
6512 }
6513 cx.stop_propagation();
6514 } else {
6515 if minimap_hitbox.is_hovered(window) {
6516 editor.scroll_manager.set_is_hovering_minimap_thumb(
6517 !event.dragging()
6518 && layout
6519 .thumb_layout
6520 .thumb_bounds
6521 .is_some_and(|bounds| bounds.contains(&event.position)),
6522 cx,
6523 );
6524
6525 // Stop hover events from propagating to the
6526 // underlying editor if the minimap hitbox is hovered
6527 if !event.dragging() {
6528 cx.stop_propagation();
6529 }
6530 } else {
6531 editor.scroll_manager.hide_minimap_thumb(cx);
6532 }
6533 }
6534 mouse_position = event.position;
6535 });
6536 }
6537 });
6538
6539 if dragging_minimap {
6540 window.on_mouse_event({
6541 let editor = self.editor.clone();
6542 move |event: &MouseUpEvent, phase, window, cx| {
6543 if phase == DispatchPhase::Capture {
6544 return;
6545 }
6546
6547 editor.update(cx, |editor, cx| {
6548 if minimap_hitbox.is_hovered(window) {
6549 editor.scroll_manager.set_is_hovering_minimap_thumb(
6550 layout
6551 .thumb_layout
6552 .thumb_bounds
6553 .is_some_and(|bounds| bounds.contains(&event.position)),
6554 cx,
6555 );
6556 } else {
6557 editor.scroll_manager.hide_minimap_thumb(cx);
6558 }
6559 cx.stop_propagation();
6560 });
6561 }
6562 });
6563 } else {
6564 window.on_mouse_event({
6565 let editor = self.editor.clone();
6566
6567 move |event: &MouseDownEvent, phase, window, cx| {
6568 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
6569 return;
6570 }
6571
6572 let event_position = event.position;
6573
6574 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
6575 return;
6576 };
6577
6578 editor.update(cx, |editor, cx| {
6579 if !thumb_bounds.contains(&event_position) {
6580 let click_position =
6581 event_position.relative_to(&minimap_hitbox.origin).y;
6582
6583 let top_position = (click_position
6584 - thumb_bounds.size.along(minimap_axis) / 2.0)
6585 .max(Pixels::ZERO);
6586
6587 let scroll_offset = (layout.minimap_scroll_top
6588 + top_position / layout.minimap_line_height)
6589 .min(layout.max_scroll_top);
6590
6591 let scroll_position = editor
6592 .scroll_position(cx)
6593 .apply_along(minimap_axis, |_| scroll_offset);
6594 editor.set_scroll_position(scroll_position, window, cx);
6595 }
6596
6597 editor.scroll_manager.set_is_dragging_minimap(cx);
6598 cx.stop_propagation();
6599 });
6600 }
6601 });
6602 }
6603 }
6604 }
6605
6606 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6607 for mut block in layout.blocks.drain(..) {
6608 if block.overlaps_gutter {
6609 block.element.paint(window, cx);
6610 } else {
6611 let mut bounds = layout.hitbox.bounds;
6612 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
6613 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6614 block.element.paint(window, cx);
6615 })
6616 }
6617 }
6618 }
6619
6620 fn paint_inline_completion_popover(
6621 &mut self,
6622 layout: &mut EditorLayout,
6623 window: &mut Window,
6624 cx: &mut App,
6625 ) {
6626 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
6627 inline_completion_popover.paint(window, cx);
6628 }
6629 }
6630
6631 fn paint_mouse_context_menu(
6632 &mut self,
6633 layout: &mut EditorLayout,
6634 window: &mut Window,
6635 cx: &mut App,
6636 ) {
6637 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
6638 mouse_context_menu.paint(window, cx);
6639 }
6640 }
6641
6642 fn paint_scroll_wheel_listener(
6643 &mut self,
6644 layout: &EditorLayout,
6645 window: &mut Window,
6646 cx: &mut App,
6647 ) {
6648 window.on_mouse_event({
6649 let position_map = layout.position_map.clone();
6650 let editor = self.editor.clone();
6651 let hitbox = layout.hitbox.clone();
6652 let mut delta = ScrollDelta::default();
6653
6654 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
6655 // accidentally turn off their scrolling.
6656 let base_scroll_sensitivity =
6657 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
6658
6659 // Use a minimum fast_scroll_sensitivity for same reason above
6660 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
6661 .fast_scroll_sensitivity
6662 .max(0.01);
6663
6664 move |event: &ScrollWheelEvent, phase, window, cx| {
6665 let scroll_sensitivity = {
6666 if event.modifiers.alt {
6667 fast_scroll_sensitivity
6668 } else {
6669 base_scroll_sensitivity
6670 }
6671 };
6672
6673 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
6674 delta = delta.coalesce(event.delta);
6675 editor.update(cx, |editor, cx| {
6676 let position_map: &PositionMap = &position_map;
6677
6678 let line_height = position_map.line_height;
6679 let max_glyph_width = position_map.em_width;
6680 let (delta, axis) = match delta {
6681 gpui::ScrollDelta::Pixels(mut pixels) => {
6682 //Trackpad
6683 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
6684 (pixels, axis)
6685 }
6686
6687 gpui::ScrollDelta::Lines(lines) => {
6688 //Not trackpad
6689 let pixels =
6690 point(lines.x * max_glyph_width, lines.y * line_height);
6691 (pixels, None)
6692 }
6693 };
6694
6695 let current_scroll_position = position_map.snapshot.scroll_position();
6696 let x = (current_scroll_position.x * max_glyph_width
6697 - (delta.x * scroll_sensitivity))
6698 / max_glyph_width;
6699 let y = (current_scroll_position.y * line_height
6700 - (delta.y * scroll_sensitivity))
6701 / line_height;
6702 let mut scroll_position =
6703 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
6704 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
6705 if forbid_vertical_scroll {
6706 scroll_position.y = current_scroll_position.y;
6707 }
6708
6709 if scroll_position != current_scroll_position {
6710 editor.scroll(scroll_position, axis, window, cx);
6711 cx.stop_propagation();
6712 } else if y < 0. {
6713 // Due to clamping, we may fail to detect cases of overscroll to the top;
6714 // We want the scroll manager to get an update in such cases and detect the change of direction
6715 // on the next frame.
6716 cx.notify();
6717 }
6718 });
6719 }
6720 }
6721 });
6722 }
6723
6724 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
6725 if self.editor.read(cx).mode.is_minimap() {
6726 return;
6727 }
6728
6729 self.paint_scroll_wheel_listener(layout, window, cx);
6730
6731 window.on_mouse_event({
6732 let position_map = layout.position_map.clone();
6733 let editor = self.editor.clone();
6734 let diff_hunk_range =
6735 layout
6736 .display_hunks
6737 .iter()
6738 .find_map(|(hunk, hunk_hitbox)| match hunk {
6739 DisplayDiffHunk::Folded { .. } => None,
6740 DisplayDiffHunk::Unfolded {
6741 multi_buffer_range, ..
6742 } => {
6743 if hunk_hitbox
6744 .as_ref()
6745 .map(|hitbox| hitbox.is_hovered(window))
6746 .unwrap_or(false)
6747 {
6748 Some(multi_buffer_range.clone())
6749 } else {
6750 None
6751 }
6752 }
6753 });
6754 let line_numbers = layout.line_numbers.clone();
6755
6756 move |event: &MouseDownEvent, phase, window, cx| {
6757 if phase == DispatchPhase::Bubble {
6758 match event.button {
6759 MouseButton::Left => editor.update(cx, |editor, cx| {
6760 let pending_mouse_down = editor
6761 .pending_mouse_down
6762 .get_or_insert_with(Default::default)
6763 .clone();
6764
6765 *pending_mouse_down.borrow_mut() = Some(event.clone());
6766
6767 Self::mouse_left_down(
6768 editor,
6769 event,
6770 diff_hunk_range.clone(),
6771 &position_map,
6772 line_numbers.as_ref(),
6773 window,
6774 cx,
6775 );
6776 }),
6777 MouseButton::Right => editor.update(cx, |editor, cx| {
6778 Self::mouse_right_down(editor, event, &position_map, window, cx);
6779 }),
6780 MouseButton::Middle => editor.update(cx, |editor, cx| {
6781 Self::mouse_middle_down(editor, event, &position_map, window, cx);
6782 }),
6783 _ => {}
6784 };
6785 }
6786 }
6787 });
6788
6789 window.on_mouse_event({
6790 let editor = self.editor.clone();
6791 let position_map = layout.position_map.clone();
6792
6793 move |event: &MouseUpEvent, phase, window, cx| {
6794 if phase == DispatchPhase::Bubble {
6795 editor.update(cx, |editor, cx| {
6796 Self::mouse_up(editor, event, &position_map, window, cx)
6797 });
6798 }
6799 }
6800 });
6801
6802 window.on_mouse_event({
6803 let editor = self.editor.clone();
6804 let position_map = layout.position_map.clone();
6805 let mut captured_mouse_down = None;
6806
6807 move |event: &MouseUpEvent, phase, window, cx| match phase {
6808 // Clear the pending mouse down during the capture phase,
6809 // so that it happens even if another event handler stops
6810 // propagation.
6811 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
6812 let pending_mouse_down = editor
6813 .pending_mouse_down
6814 .get_or_insert_with(Default::default)
6815 .clone();
6816
6817 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
6818 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
6819 captured_mouse_down = pending_mouse_down.take();
6820 window.refresh();
6821 }
6822 }),
6823 // Fire click handlers during the bubble phase.
6824 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
6825 if let Some(mouse_down) = captured_mouse_down.take() {
6826 let event = ClickEvent {
6827 down: mouse_down,
6828 up: event.clone(),
6829 };
6830 Self::click(editor, &event, &position_map, window, cx);
6831 }
6832 }),
6833 }
6834 });
6835
6836 window.on_mouse_event({
6837 let position_map = layout.position_map.clone();
6838 let editor = self.editor.clone();
6839
6840 move |event: &MouseMoveEvent, phase, window, cx| {
6841 if phase == DispatchPhase::Bubble {
6842 editor.update(cx, |editor, cx| {
6843 if editor.hover_state.focused(window, cx) {
6844 return;
6845 }
6846 if event.pressed_button == Some(MouseButton::Left)
6847 || event.pressed_button == Some(MouseButton::Middle)
6848 {
6849 Self::mouse_dragged(editor, event, &position_map, window, cx)
6850 }
6851
6852 Self::mouse_moved(editor, event, &position_map, window, cx)
6853 });
6854 }
6855 }
6856 });
6857 }
6858
6859 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
6860 bounds.top_right().x - self.style.scrollbar_width
6861 }
6862
6863 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
6864 let style = &self.style;
6865 let font_size = style.text.font_size.to_pixels(window.rem_size());
6866 let layout = window.text_system().shape_line(
6867 SharedString::from(" ".repeat(column)),
6868 font_size,
6869 &[TextRun {
6870 len: column,
6871 font: style.text.font(),
6872 color: Hsla::default(),
6873 background_color: None,
6874 underline: None,
6875 strikethrough: None,
6876 }],
6877 );
6878
6879 layout.width
6880 }
6881
6882 fn max_line_number_width(
6883 &self,
6884 snapshot: &EditorSnapshot,
6885 window: &mut Window,
6886 cx: &mut App,
6887 ) -> Pixels {
6888 let digit_count = snapshot.widest_line_number().ilog10() + 1;
6889 self.column_pixels(digit_count as usize, window, cx)
6890 }
6891
6892 fn shape_line_number(
6893 &self,
6894 text: SharedString,
6895 color: Hsla,
6896 window: &mut Window,
6897 ) -> ShapedLine {
6898 let run = TextRun {
6899 len: text.len(),
6900 font: self.style.text.font(),
6901 color,
6902 background_color: None,
6903 underline: None,
6904 strikethrough: None,
6905 };
6906 window.text_system().shape_line(
6907 text,
6908 self.style.text.font_size.to_pixels(window.rem_size()),
6909 &[run],
6910 )
6911 }
6912
6913 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
6914 let unstaged = status.has_secondary_hunk();
6915 let unstaged_hollow = ProjectSettings::get_global(cx)
6916 .git
6917 .hunk_style
6918 .map_or(false, |style| {
6919 matches!(style, GitHunkStyleSetting::UnstagedHollow)
6920 });
6921
6922 unstaged == unstaged_hollow
6923 }
6924}
6925
6926fn header_jump_data(
6927 snapshot: &EditorSnapshot,
6928 block_row_start: DisplayRow,
6929 height: u32,
6930 for_excerpt: &ExcerptInfo,
6931) -> JumpData {
6932 let range = &for_excerpt.range;
6933 let buffer = &for_excerpt.buffer;
6934 let jump_anchor = range.primary.start;
6935
6936 let excerpt_start = range.context.start;
6937 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
6938 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
6939 0
6940 } else {
6941 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
6942 jump_position.row.saturating_sub(excerpt_start_point.row)
6943 };
6944
6945 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
6946 .saturating_sub(
6947 snapshot
6948 .scroll_anchor
6949 .scroll_position(&snapshot.display_snapshot)
6950 .y as u32,
6951 );
6952
6953 JumpData::MultiBufferPoint {
6954 excerpt_id: for_excerpt.id,
6955 anchor: jump_anchor,
6956 position: jump_position,
6957 line_offset_from_top,
6958 }
6959}
6960
6961pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
6962
6963impl AcceptEditPredictionBinding {
6964 pub fn keystroke(&self) -> Option<&Keystroke> {
6965 if let Some(binding) = self.0.as_ref() {
6966 match &binding.keystrokes() {
6967 [keystroke, ..] => Some(keystroke),
6968 _ => None,
6969 }
6970 } else {
6971 None
6972 }
6973 }
6974}
6975
6976fn prepaint_gutter_button(
6977 button: IconButton,
6978 row: DisplayRow,
6979 line_height: Pixels,
6980 gutter_dimensions: &GutterDimensions,
6981 scroll_pixel_position: gpui::Point<Pixels>,
6982 gutter_hitbox: &Hitbox,
6983 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
6984 window: &mut Window,
6985 cx: &mut App,
6986) -> AnyElement {
6987 let mut button = button.into_any_element();
6988
6989 let available_space = size(
6990 AvailableSpace::MinContent,
6991 AvailableSpace::Definite(line_height),
6992 );
6993 let indicator_size = button.layout_as_root(available_space, window, cx);
6994
6995 let blame_width = gutter_dimensions.git_blame_entries_width;
6996 let gutter_width = display_hunks
6997 .binary_search_by(|(hunk, _)| match hunk {
6998 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
6999 DisplayDiffHunk::Unfolded {
7000 display_row_range, ..
7001 } => {
7002 if display_row_range.end <= row {
7003 Ordering::Less
7004 } else if display_row_range.start > row {
7005 Ordering::Greater
7006 } else {
7007 Ordering::Equal
7008 }
7009 }
7010 })
7011 .ok()
7012 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
7013 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
7014
7015 let mut x = left_offset;
7016 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
7017 - indicator_size.width
7018 - left_offset;
7019 x += available_width / 2.;
7020
7021 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
7022 y += (line_height - indicator_size.height) / 2.;
7023
7024 button.prepaint_as_root(
7025 gutter_hitbox.origin + point(x, y),
7026 available_space,
7027 window,
7028 cx,
7029 );
7030 button
7031}
7032
7033fn render_inline_blame_entry(
7034 blame_entry: BlameEntry,
7035 style: &EditorStyle,
7036 cx: &mut App,
7037) -> Option<AnyElement> {
7038 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
7039 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
7040}
7041
7042fn render_blame_entry_popover(
7043 blame_entry: BlameEntry,
7044 scroll_handle: ScrollHandle,
7045 commit_message: Option<ParsedCommitMessage>,
7046 markdown: Entity<Markdown>,
7047 workspace: WeakEntity<Workspace>,
7048 blame: &Entity<GitBlame>,
7049 window: &mut Window,
7050 cx: &mut App,
7051) -> Option<AnyElement> {
7052 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
7053 let blame = blame.read(cx);
7054 let repository = blame.repository(cx)?.clone();
7055 renderer.render_blame_entry_popover(
7056 blame_entry,
7057 scroll_handle,
7058 commit_message,
7059 markdown,
7060 repository,
7061 workspace,
7062 window,
7063 cx,
7064 )
7065}
7066
7067fn render_blame_entry(
7068 ix: usize,
7069 blame: &Entity<GitBlame>,
7070 blame_entry: BlameEntry,
7071 style: &EditorStyle,
7072 last_used_color: &mut Option<(PlayerColor, Oid)>,
7073 editor: Entity<Editor>,
7074 workspace: Entity<Workspace>,
7075 renderer: Arc<dyn BlameRenderer>,
7076 cx: &mut App,
7077) -> Option<AnyElement> {
7078 let mut sha_color = cx
7079 .theme()
7080 .players()
7081 .color_for_participant(blame_entry.sha.into());
7082
7083 // If the last color we used is the same as the one we get for this line, but
7084 // the commit SHAs are different, then we try again to get a different color.
7085 match *last_used_color {
7086 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
7087 let index: u32 = blame_entry.sha.into();
7088 sha_color = cx.theme().players().color_for_participant(index + 1);
7089 }
7090 _ => {}
7091 };
7092 last_used_color.replace((sha_color, blame_entry.sha));
7093
7094 let blame = blame.read(cx);
7095 let details = blame.details_for_entry(&blame_entry);
7096 let repository = blame.repository(cx)?;
7097 renderer.render_blame_entry(
7098 &style.text,
7099 blame_entry,
7100 details,
7101 repository,
7102 workspace.downgrade(),
7103 editor,
7104 ix,
7105 sha_color.cursor,
7106 cx,
7107 )
7108}
7109
7110#[derive(Debug)]
7111pub(crate) struct LineWithInvisibles {
7112 fragments: SmallVec<[LineFragment; 1]>,
7113 invisibles: Vec<Invisible>,
7114 len: usize,
7115 pub(crate) width: Pixels,
7116 font_size: Pixels,
7117}
7118
7119enum LineFragment {
7120 Text(ShapedLine),
7121 Element {
7122 id: ChunkRendererId,
7123 element: Option<AnyElement>,
7124 size: Size<Pixels>,
7125 len: usize,
7126 },
7127}
7128
7129impl fmt::Debug for LineFragment {
7130 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
7131 match self {
7132 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
7133 LineFragment::Element { size, len, .. } => f
7134 .debug_struct("Element")
7135 .field("size", size)
7136 .field("len", len)
7137 .finish(),
7138 }
7139 }
7140}
7141
7142impl LineWithInvisibles {
7143 fn from_chunks<'a>(
7144 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
7145 editor_style: &EditorStyle,
7146 max_line_len: usize,
7147 max_line_count: usize,
7148 editor_mode: &EditorMode,
7149 text_width: Pixels,
7150 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7151 window: &mut Window,
7152 cx: &mut App,
7153 ) -> Vec<Self> {
7154 let text_style = &editor_style.text;
7155 let mut layouts = Vec::with_capacity(max_line_count);
7156 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
7157 let mut line = String::new();
7158 let mut invisibles = Vec::new();
7159 let mut width = Pixels::ZERO;
7160 let mut len = 0;
7161 let mut styles = Vec::new();
7162 let mut non_whitespace_added = false;
7163 let mut row = 0;
7164 let mut line_exceeded_max_len = false;
7165 let font_size = text_style.font_size.to_pixels(window.rem_size());
7166
7167 let ellipsis = SharedString::from("⋯");
7168
7169 for highlighted_chunk in chunks.chain([HighlightedChunk {
7170 text: "\n",
7171 style: None,
7172 is_tab: false,
7173 is_inlay: false,
7174 replacement: None,
7175 }]) {
7176 if let Some(replacement) = highlighted_chunk.replacement {
7177 if !line.is_empty() {
7178 let shaped_line =
7179 window
7180 .text_system()
7181 .shape_line(line.clone().into(), font_size, &styles);
7182 width += shaped_line.width;
7183 len += shaped_line.len;
7184 fragments.push(LineFragment::Text(shaped_line));
7185 line.clear();
7186 styles.clear();
7187 }
7188
7189 match replacement {
7190 ChunkReplacement::Renderer(renderer) => {
7191 let available_width = if renderer.constrain_width {
7192 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
7193 ellipsis.clone()
7194 } else {
7195 SharedString::from(Arc::from(highlighted_chunk.text))
7196 };
7197 let shaped_line = window.text_system().shape_line(
7198 chunk,
7199 font_size,
7200 &[text_style.to_run(highlighted_chunk.text.len())],
7201 );
7202 AvailableSpace::Definite(shaped_line.width)
7203 } else {
7204 AvailableSpace::MinContent
7205 };
7206
7207 let mut element = (renderer.render)(&mut ChunkRendererContext {
7208 context: cx,
7209 window,
7210 max_width: text_width,
7211 });
7212 let line_height = text_style.line_height_in_pixels(window.rem_size());
7213 let size = element.layout_as_root(
7214 size(available_width, AvailableSpace::Definite(line_height)),
7215 window,
7216 cx,
7217 );
7218
7219 width += size.width;
7220 len += highlighted_chunk.text.len();
7221 fragments.push(LineFragment::Element {
7222 id: renderer.id,
7223 element: Some(element),
7224 size,
7225 len: highlighted_chunk.text.len(),
7226 });
7227 }
7228 ChunkReplacement::Str(x) => {
7229 let text_style = if let Some(style) = highlighted_chunk.style {
7230 Cow::Owned(text_style.clone().highlight(style))
7231 } else {
7232 Cow::Borrowed(text_style)
7233 };
7234
7235 let run = TextRun {
7236 len: x.len(),
7237 font: text_style.font(),
7238 color: text_style.color,
7239 background_color: text_style.background_color,
7240 underline: text_style.underline,
7241 strikethrough: text_style.strikethrough,
7242 };
7243 let line_layout = window
7244 .text_system()
7245 .shape_line(x, font_size, &[run])
7246 .with_len(highlighted_chunk.text.len());
7247
7248 width += line_layout.width;
7249 len += highlighted_chunk.text.len();
7250 fragments.push(LineFragment::Text(line_layout))
7251 }
7252 }
7253 } else {
7254 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
7255 if ix > 0 {
7256 let shaped_line = window.text_system().shape_line(
7257 line.clone().into(),
7258 font_size,
7259 &styles,
7260 );
7261 width += shaped_line.width;
7262 len += shaped_line.len;
7263 fragments.push(LineFragment::Text(shaped_line));
7264 layouts.push(Self {
7265 width: mem::take(&mut width),
7266 len: mem::take(&mut len),
7267 fragments: mem::take(&mut fragments),
7268 invisibles: std::mem::take(&mut invisibles),
7269 font_size,
7270 });
7271
7272 line.clear();
7273 styles.clear();
7274 row += 1;
7275 line_exceeded_max_len = false;
7276 non_whitespace_added = false;
7277 if row == max_line_count {
7278 return layouts;
7279 }
7280 }
7281
7282 if !line_chunk.is_empty() && !line_exceeded_max_len {
7283 let text_style = if let Some(style) = highlighted_chunk.style {
7284 Cow::Owned(text_style.clone().highlight(style))
7285 } else {
7286 Cow::Borrowed(text_style)
7287 };
7288
7289 if line.len() + line_chunk.len() > max_line_len {
7290 let mut chunk_len = max_line_len - line.len();
7291 while !line_chunk.is_char_boundary(chunk_len) {
7292 chunk_len -= 1;
7293 }
7294 line_chunk = &line_chunk[..chunk_len];
7295 line_exceeded_max_len = true;
7296 }
7297
7298 styles.push(TextRun {
7299 len: line_chunk.len(),
7300 font: text_style.font(),
7301 color: text_style.color,
7302 background_color: text_style.background_color,
7303 underline: text_style.underline,
7304 strikethrough: text_style.strikethrough,
7305 });
7306
7307 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
7308 // Line wrap pads its contents with fake whitespaces,
7309 // avoid printing them
7310 let is_soft_wrapped = is_row_soft_wrapped(row);
7311 if highlighted_chunk.is_tab {
7312 if non_whitespace_added || !is_soft_wrapped {
7313 invisibles.push(Invisible::Tab {
7314 line_start_offset: line.len(),
7315 line_end_offset: line.len() + line_chunk.len(),
7316 });
7317 }
7318 } else {
7319 invisibles.extend(line_chunk.char_indices().filter_map(
7320 |(index, c)| {
7321 let is_whitespace = c.is_whitespace();
7322 non_whitespace_added |= !is_whitespace;
7323 if is_whitespace
7324 && (non_whitespace_added || !is_soft_wrapped)
7325 {
7326 Some(Invisible::Whitespace {
7327 line_offset: line.len() + index,
7328 })
7329 } else {
7330 None
7331 }
7332 },
7333 ))
7334 }
7335 }
7336
7337 line.push_str(line_chunk);
7338 }
7339 }
7340 }
7341 }
7342
7343 layouts
7344 }
7345
7346 fn prepaint(
7347 &mut self,
7348 line_height: Pixels,
7349 scroll_pixel_position: gpui::Point<Pixels>,
7350 row: DisplayRow,
7351 content_origin: gpui::Point<Pixels>,
7352 line_elements: &mut SmallVec<[AnyElement; 1]>,
7353 window: &mut Window,
7354 cx: &mut App,
7355 ) {
7356 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
7357 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
7358 for fragment in &mut self.fragments {
7359 match fragment {
7360 LineFragment::Text(line) => {
7361 fragment_origin.x += line.width;
7362 }
7363 LineFragment::Element { element, size, .. } => {
7364 let mut element = element
7365 .take()
7366 .expect("you can't prepaint LineWithInvisibles twice");
7367
7368 // Center the element vertically within the line.
7369 let mut element_origin = fragment_origin;
7370 element_origin.y += (line_height - size.height) / 2.;
7371 element.prepaint_at(element_origin, window, cx);
7372 line_elements.push(element);
7373
7374 fragment_origin.x += size.width;
7375 }
7376 }
7377 }
7378 }
7379
7380 fn draw(
7381 &self,
7382 layout: &EditorLayout,
7383 row: DisplayRow,
7384 content_origin: gpui::Point<Pixels>,
7385 whitespace_setting: ShowWhitespaceSetting,
7386 selection_ranges: &[Range<DisplayPoint>],
7387 window: &mut Window,
7388 cx: &mut App,
7389 ) {
7390 let line_height = layout.position_map.line_height;
7391 let line_y = line_height
7392 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
7393
7394 let mut fragment_origin =
7395 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
7396
7397 for fragment in &self.fragments {
7398 match fragment {
7399 LineFragment::Text(line) => {
7400 line.paint(fragment_origin, line_height, window, cx)
7401 .log_err();
7402 fragment_origin.x += line.width;
7403 }
7404 LineFragment::Element { size, .. } => {
7405 fragment_origin.x += size.width;
7406 }
7407 }
7408 }
7409
7410 self.draw_invisibles(
7411 selection_ranges,
7412 layout,
7413 content_origin,
7414 line_y,
7415 row,
7416 line_height,
7417 whitespace_setting,
7418 window,
7419 cx,
7420 );
7421 }
7422
7423 fn draw_background(
7424 &self,
7425 layout: &EditorLayout,
7426 row: DisplayRow,
7427 content_origin: gpui::Point<Pixels>,
7428 window: &mut Window,
7429 cx: &mut App,
7430 ) {
7431 let line_height = layout.position_map.line_height;
7432 let line_y = line_height
7433 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
7434
7435 let mut fragment_origin =
7436 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
7437
7438 for fragment in &self.fragments {
7439 match fragment {
7440 LineFragment::Text(line) => {
7441 line.paint_background(fragment_origin, line_height, window, cx)
7442 .log_err();
7443 fragment_origin.x += line.width;
7444 }
7445 LineFragment::Element { size, .. } => {
7446 fragment_origin.x += size.width;
7447 }
7448 }
7449 }
7450 }
7451
7452 fn draw_invisibles(
7453 &self,
7454 selection_ranges: &[Range<DisplayPoint>],
7455 layout: &EditorLayout,
7456 content_origin: gpui::Point<Pixels>,
7457 line_y: Pixels,
7458 row: DisplayRow,
7459 line_height: Pixels,
7460 whitespace_setting: ShowWhitespaceSetting,
7461 window: &mut Window,
7462 cx: &mut App,
7463 ) {
7464 let extract_whitespace_info = |invisible: &Invisible| {
7465 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
7466 Invisible::Tab {
7467 line_start_offset,
7468 line_end_offset,
7469 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
7470 Invisible::Whitespace { line_offset } => {
7471 (*line_offset, line_offset + 1, &layout.space_invisible)
7472 }
7473 };
7474
7475 let x_offset = self.x_for_index(token_offset);
7476 let invisible_offset =
7477 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
7478 let origin = content_origin
7479 + gpui::point(
7480 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
7481 line_y,
7482 );
7483
7484 (
7485 [token_offset, token_end_offset],
7486 Box::new(move |window: &mut Window, cx: &mut App| {
7487 invisible_symbol
7488 .paint(origin, line_height, window, cx)
7489 .log_err();
7490 }),
7491 )
7492 };
7493
7494 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
7495 match whitespace_setting {
7496 ShowWhitespaceSetting::None => (),
7497 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
7498 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
7499 let invisible_point = DisplayPoint::new(row, start as u32);
7500 if !selection_ranges
7501 .iter()
7502 .any(|region| region.start <= invisible_point && invisible_point < region.end)
7503 {
7504 return;
7505 }
7506
7507 paint(window, cx);
7508 }),
7509
7510 ShowWhitespaceSetting::Trailing => {
7511 let mut previous_start = self.len;
7512 for ([start, end], paint) in invisible_iter.rev() {
7513 if previous_start != end {
7514 break;
7515 }
7516 previous_start = start;
7517 paint(window, cx);
7518 }
7519 }
7520
7521 // For a whitespace to be on a boundary, any of the following conditions need to be met:
7522 // - It is a tab
7523 // - It is adjacent to an edge (start or end)
7524 // - It is adjacent to a whitespace (left or right)
7525 ShowWhitespaceSetting::Boundary => {
7526 // 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
7527 // the above cases.
7528 // Note: We zip in the original `invisibles` to check for tab equality
7529 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
7530 for (([start, end], paint), invisible) in
7531 invisible_iter.zip_eq(self.invisibles.iter())
7532 {
7533 let should_render = match (&last_seen, invisible) {
7534 (_, Invisible::Tab { .. }) => true,
7535 (Some((_, last_end, _)), _) => *last_end == start,
7536 _ => false,
7537 };
7538
7539 if should_render || start == 0 || end == self.len {
7540 paint(window, cx);
7541
7542 // Since we are scanning from the left, we will skip over the first available whitespace that is part
7543 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
7544 if let Some((should_render_last, last_end, paint_last)) = last_seen {
7545 // Note that we need to make sure that the last one is actually adjacent
7546 if !should_render_last && last_end == start {
7547 paint_last(window, cx);
7548 }
7549 }
7550 }
7551
7552 // Manually render anything within a selection
7553 let invisible_point = DisplayPoint::new(row, start as u32);
7554 if selection_ranges.iter().any(|region| {
7555 region.start <= invisible_point && invisible_point < region.end
7556 }) {
7557 paint(window, cx);
7558 }
7559
7560 last_seen = Some((should_render, end, paint));
7561 }
7562 }
7563 }
7564 }
7565
7566 pub fn x_for_index(&self, index: usize) -> Pixels {
7567 let mut fragment_start_x = Pixels::ZERO;
7568 let mut fragment_start_index = 0;
7569
7570 for fragment in &self.fragments {
7571 match fragment {
7572 LineFragment::Text(shaped_line) => {
7573 let fragment_end_index = fragment_start_index + shaped_line.len;
7574 if index < fragment_end_index {
7575 return fragment_start_x
7576 + shaped_line.x_for_index(index - fragment_start_index);
7577 }
7578 fragment_start_x += shaped_line.width;
7579 fragment_start_index = fragment_end_index;
7580 }
7581 LineFragment::Element { len, size, .. } => {
7582 let fragment_end_index = fragment_start_index + len;
7583 if index < fragment_end_index {
7584 return fragment_start_x;
7585 }
7586 fragment_start_x += size.width;
7587 fragment_start_index = fragment_end_index;
7588 }
7589 }
7590 }
7591
7592 fragment_start_x
7593 }
7594
7595 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
7596 let mut fragment_start_x = Pixels::ZERO;
7597 let mut fragment_start_index = 0;
7598
7599 for fragment in &self.fragments {
7600 match fragment {
7601 LineFragment::Text(shaped_line) => {
7602 let fragment_end_x = fragment_start_x + shaped_line.width;
7603 if x < fragment_end_x {
7604 return Some(
7605 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
7606 );
7607 }
7608 fragment_start_x = fragment_end_x;
7609 fragment_start_index += shaped_line.len;
7610 }
7611 LineFragment::Element { len, size, .. } => {
7612 let fragment_end_x = fragment_start_x + size.width;
7613 if x < fragment_end_x {
7614 return Some(fragment_start_index);
7615 }
7616 fragment_start_index += len;
7617 fragment_start_x = fragment_end_x;
7618 }
7619 }
7620 }
7621
7622 None
7623 }
7624
7625 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
7626 let mut fragment_start_index = 0;
7627
7628 for fragment in &self.fragments {
7629 match fragment {
7630 LineFragment::Text(shaped_line) => {
7631 let fragment_end_index = fragment_start_index + shaped_line.len;
7632 if index < fragment_end_index {
7633 return shaped_line.font_id_for_index(index - fragment_start_index);
7634 }
7635 fragment_start_index = fragment_end_index;
7636 }
7637 LineFragment::Element { len, .. } => {
7638 let fragment_end_index = fragment_start_index + len;
7639 if index < fragment_end_index {
7640 return None;
7641 }
7642 fragment_start_index = fragment_end_index;
7643 }
7644 }
7645 }
7646
7647 None
7648 }
7649}
7650
7651#[derive(Debug, Clone, Copy, PartialEq, Eq)]
7652enum Invisible {
7653 /// A tab character
7654 ///
7655 /// A tab character is internally represented by spaces (configured by the user's tab width)
7656 /// aligned to the nearest column, so it's necessary to store the start and end offset for
7657 /// adjacency checks.
7658 Tab {
7659 line_start_offset: usize,
7660 line_end_offset: usize,
7661 },
7662 Whitespace {
7663 line_offset: usize,
7664 },
7665}
7666
7667impl EditorElement {
7668 /// Returns the rem size to use when rendering the [`EditorElement`].
7669 ///
7670 /// This allows UI elements to scale based on the `buffer_font_size`.
7671 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
7672 match self.editor.read(cx).mode {
7673 EditorMode::Full {
7674 scale_ui_elements_with_buffer_font_size: true,
7675 ..
7676 }
7677 | EditorMode::Minimap { .. } => {
7678 let buffer_font_size = self.style.text.font_size;
7679 match buffer_font_size {
7680 AbsoluteLength::Pixels(pixels) => {
7681 let rem_size_scale = {
7682 // Our default UI font size is 14px on a 16px base scale.
7683 // This means the default UI font size is 0.875rems.
7684 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
7685
7686 // We then determine the delta between a single rem and the default font
7687 // size scale.
7688 let default_font_size_delta = 1. - default_font_size_scale;
7689
7690 // Finally, we add this delta to 1rem to get the scale factor that
7691 // should be used to scale up the UI.
7692 1. + default_font_size_delta
7693 };
7694
7695 Some(pixels * rem_size_scale)
7696 }
7697 AbsoluteLength::Rems(rems) => {
7698 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
7699 }
7700 }
7701 }
7702 // We currently use single-line and auto-height editors in UI contexts,
7703 // so we don't want to scale everything with the buffer font size, as it
7704 // ends up looking off.
7705 _ => None,
7706 }
7707 }
7708
7709 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
7710 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
7711 parent.upgrade()
7712 } else {
7713 Some(self.editor.clone())
7714 }
7715 }
7716}
7717
7718impl Element for EditorElement {
7719 type RequestLayoutState = ();
7720 type PrepaintState = EditorLayout;
7721
7722 fn id(&self) -> Option<ElementId> {
7723 None
7724 }
7725
7726 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
7727 None
7728 }
7729
7730 fn request_layout(
7731 &mut self,
7732 _: Option<&GlobalElementId>,
7733 _inspector_id: Option<&gpui::InspectorElementId>,
7734 window: &mut Window,
7735 cx: &mut App,
7736 ) -> (gpui::LayoutId, ()) {
7737 let rem_size = self.rem_size(cx);
7738 window.with_rem_size(rem_size, |window| {
7739 self.editor.update(cx, |editor, cx| {
7740 editor.set_style(self.style.clone(), window, cx);
7741
7742 let layout_id = match editor.mode {
7743 EditorMode::SingleLine { auto_width } => {
7744 let rem_size = window.rem_size();
7745
7746 let height = self.style.text.line_height_in_pixels(rem_size);
7747 if auto_width {
7748 let editor_handle = cx.entity().clone();
7749 let style = self.style.clone();
7750 window.request_measured_layout(
7751 Style::default(),
7752 move |_, _, window, cx| {
7753 let editor_snapshot = editor_handle
7754 .update(cx, |editor, cx| editor.snapshot(window, cx));
7755 let line = Self::layout_lines(
7756 DisplayRow(0)..DisplayRow(1),
7757 &editor_snapshot,
7758 &style,
7759 px(f32::MAX),
7760 |_| false, // Single lines never soft wrap
7761 window,
7762 cx,
7763 )
7764 .pop()
7765 .unwrap();
7766
7767 let font_id =
7768 window.text_system().resolve_font(&style.text.font());
7769 let font_size =
7770 style.text.font_size.to_pixels(window.rem_size());
7771 let em_width =
7772 window.text_system().em_width(font_id, font_size).unwrap();
7773
7774 size(line.width + em_width, height)
7775 },
7776 )
7777 } else {
7778 let mut style = Style::default();
7779 style.size.height = height.into();
7780 style.size.width = relative(1.).into();
7781 window.request_layout(style, None, cx)
7782 }
7783 }
7784 EditorMode::AutoHeight {
7785 min_lines,
7786 max_lines,
7787 } => {
7788 let editor_handle = cx.entity().clone();
7789 let max_line_number_width =
7790 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
7791 window.request_measured_layout(
7792 Style::default(),
7793 move |known_dimensions, available_space, window, cx| {
7794 editor_handle
7795 .update(cx, |editor, cx| {
7796 compute_auto_height_layout(
7797 editor,
7798 min_lines,
7799 max_lines,
7800 max_line_number_width,
7801 known_dimensions,
7802 available_space.width,
7803 window,
7804 cx,
7805 )
7806 })
7807 .unwrap_or_default()
7808 },
7809 )
7810 }
7811 EditorMode::Minimap { .. } => {
7812 let mut style = Style::default();
7813 style.size.width = relative(1.).into();
7814 style.size.height = relative(1.).into();
7815 window.request_layout(style, None, cx)
7816 }
7817 EditorMode::Full {
7818 sized_by_content, ..
7819 } => {
7820 let mut style = Style::default();
7821 style.size.width = relative(1.).into();
7822 if sized_by_content {
7823 let snapshot = editor.snapshot(window, cx);
7824 let line_height =
7825 self.style.text.line_height_in_pixels(window.rem_size());
7826 let scroll_height =
7827 (snapshot.max_point().row().next_row().0 as f32) * line_height;
7828 style.size.height = scroll_height.into();
7829 } else {
7830 style.size.height = relative(1.).into();
7831 }
7832 window.request_layout(style, None, cx)
7833 }
7834 };
7835
7836 (layout_id, ())
7837 })
7838 })
7839 }
7840
7841 fn prepaint(
7842 &mut self,
7843 _: Option<&GlobalElementId>,
7844 _inspector_id: Option<&gpui::InspectorElementId>,
7845 bounds: Bounds<Pixels>,
7846 _: &mut Self::RequestLayoutState,
7847 window: &mut Window,
7848 cx: &mut App,
7849 ) -> Self::PrepaintState {
7850 let text_style = TextStyleRefinement {
7851 font_size: Some(self.style.text.font_size),
7852 line_height: Some(self.style.text.line_height),
7853 ..Default::default()
7854 };
7855 let focus_handle = self.editor.focus_handle(cx);
7856 window.set_view_id(self.editor.entity_id());
7857 window.set_focus_handle(&focus_handle, cx);
7858
7859 let rem_size = self.rem_size(cx);
7860 window.with_rem_size(rem_size, |window| {
7861 window.with_text_style(Some(text_style), |window| {
7862 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7863 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
7864 (editor.snapshot(window, cx), editor.read_only(cx))
7865 });
7866 let style = self.style.clone();
7867
7868 let rem_size = window.rem_size();
7869 let font_id = window.text_system().resolve_font(&style.text.font());
7870 let font_size = style.text.font_size.to_pixels(rem_size);
7871 let line_height = style.text.line_height_in_pixels(rem_size);
7872 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
7873 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
7874 let glyph_grid_cell = size(em_advance, line_height);
7875
7876 let gutter_dimensions = snapshot
7877 .gutter_dimensions(
7878 font_id,
7879 font_size,
7880 self.max_line_number_width(&snapshot, window, cx),
7881 cx,
7882 )
7883 .or_else(|| {
7884 self.editor.read(cx).offset_content.then(|| {
7885 GutterDimensions::default_with_margin(font_id, font_size, cx)
7886 })
7887 })
7888 .unwrap_or_default();
7889 let text_width = bounds.size.width - gutter_dimensions.width;
7890
7891 let settings = EditorSettings::get_global(cx);
7892 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
7893 let vertical_scrollbar_width = (scrollbars_shown
7894 && settings.scrollbar.axes.vertical
7895 && self.editor.read(cx).show_scrollbars.vertical)
7896 .then_some(style.scrollbar_width)
7897 .unwrap_or_default();
7898 let minimap_width = self
7899 .get_minimap_width(
7900 &settings.minimap,
7901 scrollbars_shown,
7902 text_width,
7903 em_width,
7904 font_size,
7905 rem_size,
7906 cx,
7907 )
7908 .unwrap_or_default();
7909
7910 let right_margin = minimap_width + vertical_scrollbar_width;
7911
7912 let editor_width =
7913 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
7914 let editor_margins = EditorMargins {
7915 gutter: gutter_dimensions,
7916 right: right_margin,
7917 };
7918
7919 // Offset the content_bounds from the text_bounds by the gutter margin (which
7920 // is roughly half a character wide) to make hit testing work more like how we want.
7921 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
7922
7923 let editor_content_width = editor_width - content_offset.x;
7924
7925 snapshot = self.editor.update(cx, |editor, cx| {
7926 editor.last_bounds = Some(bounds);
7927 editor.gutter_dimensions = gutter_dimensions;
7928 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
7929
7930 if matches!(
7931 editor.mode,
7932 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
7933 ) {
7934 snapshot
7935 } else {
7936 let wrap_width_for = |column: u32| (column as f32 * em_advance).ceil();
7937 let wrap_width = match editor.soft_wrap_mode(cx) {
7938 SoftWrap::GitDiff => None,
7939 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
7940 SoftWrap::EditorWidth => Some(editor_content_width),
7941 SoftWrap::Column(column) => Some(wrap_width_for(column)),
7942 SoftWrap::Bounded(column) => {
7943 Some(editor_content_width.min(wrap_width_for(column)))
7944 }
7945 };
7946
7947 if editor.set_wrap_width(wrap_width, cx) {
7948 editor.snapshot(window, cx)
7949 } else {
7950 snapshot
7951 }
7952 }
7953 });
7954
7955 let wrap_guides = self
7956 .editor
7957 .read(cx)
7958 .wrap_guides(cx)
7959 .iter()
7960 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
7961 .collect::<SmallVec<[_; 2]>>();
7962
7963 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
7964 let gutter_hitbox = window.insert_hitbox(
7965 gutter_bounds(bounds, gutter_dimensions),
7966 HitboxBehavior::Normal,
7967 );
7968 let text_hitbox = window.insert_hitbox(
7969 Bounds {
7970 origin: gutter_hitbox.top_right(),
7971 size: size(text_width, bounds.size.height),
7972 },
7973 HitboxBehavior::Normal,
7974 );
7975
7976 let content_origin = text_hitbox.origin + content_offset;
7977
7978 let editor_text_bounds =
7979 Bounds::from_corners(content_origin, bounds.bottom_right());
7980
7981 let height_in_lines = editor_text_bounds.size.height / line_height;
7982
7983 let max_row = snapshot.max_point().row().as_f32();
7984
7985 // The max scroll position for the top of the window
7986 let max_scroll_top = if matches!(
7987 snapshot.mode,
7988 EditorMode::SingleLine { .. }
7989 | EditorMode::AutoHeight { .. }
7990 | EditorMode::Full {
7991 sized_by_content: true,
7992 ..
7993 }
7994 ) {
7995 (max_row - height_in_lines + 1.).max(0.)
7996 } else {
7997 let settings = EditorSettings::get_global(cx);
7998 match settings.scroll_beyond_last_line {
7999 ScrollBeyondLastLine::OnePage => max_row,
8000 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
8001 ScrollBeyondLastLine::VerticalScrollMargin => {
8002 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
8003 .max(0.)
8004 }
8005 }
8006 };
8007
8008 // TODO: Autoscrolling for both axes
8009 let mut autoscroll_request = None;
8010 let mut autoscroll_containing_element = false;
8011 let mut autoscroll_horizontally = false;
8012 self.editor.update(cx, |editor, cx| {
8013 autoscroll_request = editor.autoscroll_request();
8014 autoscroll_containing_element =
8015 autoscroll_request.is_some() || editor.has_pending_selection();
8016 // TODO: Is this horizontal or vertical?!
8017 autoscroll_horizontally = editor.autoscroll_vertically(
8018 bounds,
8019 line_height,
8020 max_scroll_top,
8021 window,
8022 cx,
8023 );
8024 snapshot = editor.snapshot(window, cx);
8025 });
8026
8027 let mut scroll_position = snapshot.scroll_position();
8028 // The scroll position is a fractional point, the whole number of which represents
8029 // the top of the window in terms of display rows.
8030 let start_row = DisplayRow(scroll_position.y as u32);
8031 let max_row = snapshot.max_point().row();
8032 let end_row = cmp::min(
8033 (scroll_position.y + height_in_lines).ceil() as u32,
8034 max_row.next_row().0,
8035 );
8036 let end_row = DisplayRow(end_row);
8037
8038 let row_infos = snapshot
8039 .row_infos(start_row)
8040 .take((start_row..end_row).len())
8041 .collect::<Vec<RowInfo>>();
8042 let is_row_soft_wrapped = |row: usize| {
8043 row_infos
8044 .get(row)
8045 .map_or(true, |info| info.buffer_row.is_none())
8046 };
8047
8048 let start_anchor = if start_row == Default::default() {
8049 Anchor::min()
8050 } else {
8051 snapshot.buffer_snapshot.anchor_before(
8052 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
8053 )
8054 };
8055 let end_anchor = if end_row > max_row {
8056 Anchor::max()
8057 } else {
8058 snapshot.buffer_snapshot.anchor_before(
8059 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
8060 )
8061 };
8062
8063 let mut highlighted_rows = self
8064 .editor
8065 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
8066
8067 let is_light = cx.theme().appearance().is_light();
8068
8069 for (ix, row_info) in row_infos.iter().enumerate() {
8070 let Some(diff_status) = row_info.diff_status else {
8071 continue;
8072 };
8073
8074 let background_color = match diff_status.kind {
8075 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
8076 DiffHunkStatusKind::Deleted => {
8077 cx.theme().colors().version_control_deleted
8078 }
8079 DiffHunkStatusKind::Modified => {
8080 debug_panic!("modified diff status for row info");
8081 continue;
8082 }
8083 };
8084
8085 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
8086
8087 let hollow_highlight = LineHighlight {
8088 background: (background_color.opacity(if is_light {
8089 0.08
8090 } else {
8091 0.06
8092 }))
8093 .into(),
8094 border: Some(if is_light {
8095 background_color.opacity(0.48)
8096 } else {
8097 background_color.opacity(0.36)
8098 }),
8099 include_gutter: true,
8100 type_id: None,
8101 };
8102
8103 let filled_highlight = LineHighlight {
8104 background: solid_background(background_color.opacity(hunk_opacity)),
8105 border: None,
8106 include_gutter: true,
8107 type_id: None,
8108 };
8109
8110 let background = if Self::diff_hunk_hollow(diff_status, cx) {
8111 hollow_highlight
8112 } else {
8113 filled_highlight
8114 };
8115
8116 highlighted_rows
8117 .entry(start_row + DisplayRow(ix as u32))
8118 .or_insert(background);
8119 }
8120
8121 let highlighted_ranges = self
8122 .editor_with_selections(cx)
8123 .map(|editor| {
8124 editor.read(cx).background_highlights_in_range(
8125 start_anchor..end_anchor,
8126 &snapshot.display_snapshot,
8127 cx.theme(),
8128 )
8129 })
8130 .unwrap_or_default();
8131 let highlighted_gutter_ranges =
8132 self.editor.read(cx).gutter_highlights_in_range(
8133 start_anchor..end_anchor,
8134 &snapshot.display_snapshot,
8135 cx,
8136 );
8137
8138 let document_colors = self
8139 .editor
8140 .read(cx)
8141 .colors
8142 .as_ref()
8143 .map(|colors| colors.editor_display_highlights(&snapshot));
8144 let redacted_ranges = self.editor.read(cx).redacted_ranges(
8145 start_anchor..end_anchor,
8146 &snapshot.display_snapshot,
8147 cx,
8148 );
8149
8150 let (local_selections, selected_buffer_ids): (
8151 Vec<Selection<Point>>,
8152 Vec<BufferId>,
8153 ) = self
8154 .editor_with_selections(cx)
8155 .map(|editor| {
8156 editor.update(cx, |editor, cx| {
8157 let all_selections = editor.selections.all::<Point>(cx);
8158 let selected_buffer_ids = if editor.is_singleton(cx) {
8159 Vec::new()
8160 } else {
8161 let mut selected_buffer_ids =
8162 Vec::with_capacity(all_selections.len());
8163
8164 for selection in all_selections {
8165 for buffer_id in snapshot
8166 .buffer_snapshot
8167 .buffer_ids_for_range(selection.range())
8168 {
8169 if selected_buffer_ids.last() != Some(&buffer_id) {
8170 selected_buffer_ids.push(buffer_id);
8171 }
8172 }
8173 }
8174
8175 selected_buffer_ids
8176 };
8177
8178 let mut selections = editor
8179 .selections
8180 .disjoint_in_range(start_anchor..end_anchor, cx);
8181 selections.extend(editor.selections.pending(cx));
8182
8183 (selections, selected_buffer_ids)
8184 })
8185 })
8186 .unwrap_or_default();
8187
8188 let (selections, mut active_rows, newest_selection_head) = self
8189 .layout_selections(
8190 start_anchor,
8191 end_anchor,
8192 &local_selections,
8193 &snapshot,
8194 start_row,
8195 end_row,
8196 window,
8197 cx,
8198 );
8199 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
8200 editor.active_breakpoints(start_row..end_row, window, cx)
8201 });
8202 for (display_row, (_, bp, state)) in &breakpoint_rows {
8203 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
8204 active_rows.entry(*display_row).or_default().breakpoint = true;
8205 }
8206 }
8207
8208 let line_numbers = self.layout_line_numbers(
8209 Some(&gutter_hitbox),
8210 gutter_dimensions,
8211 line_height,
8212 scroll_position,
8213 start_row..end_row,
8214 &row_infos,
8215 &active_rows,
8216 newest_selection_head,
8217 &snapshot,
8218 window,
8219 cx,
8220 );
8221
8222 // We add the gutter breakpoint indicator to breakpoint_rows after painting
8223 // line numbers so we don't paint a line number debug accent color if a user
8224 // has their mouse over that line when a breakpoint isn't there
8225 self.editor.update(cx, |editor, _| {
8226 if let Some(phantom_breakpoint) = &mut editor
8227 .gutter_breakpoint_indicator
8228 .0
8229 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
8230 {
8231 // Is there a non-phantom breakpoint on this line?
8232 phantom_breakpoint.collides_with_existing_breakpoint = true;
8233 breakpoint_rows
8234 .entry(phantom_breakpoint.display_row)
8235 .or_insert_with(|| {
8236 let position = snapshot.display_point_to_anchor(
8237 DisplayPoint::new(phantom_breakpoint.display_row, 0),
8238 Bias::Right,
8239 );
8240 let breakpoint = Breakpoint::new_standard();
8241 phantom_breakpoint.collides_with_existing_breakpoint = false;
8242 (position, breakpoint, None)
8243 });
8244 }
8245 });
8246
8247 let mut expand_toggles =
8248 window.with_element_namespace("expand_toggles", |window| {
8249 self.layout_expand_toggles(
8250 &gutter_hitbox,
8251 gutter_dimensions,
8252 em_width,
8253 line_height,
8254 scroll_position,
8255 &row_infos,
8256 window,
8257 cx,
8258 )
8259 });
8260
8261 let mut crease_toggles =
8262 window.with_element_namespace("crease_toggles", |window| {
8263 self.layout_crease_toggles(
8264 start_row..end_row,
8265 &row_infos,
8266 &active_rows,
8267 &snapshot,
8268 window,
8269 cx,
8270 )
8271 });
8272 let crease_trailers =
8273 window.with_element_namespace("crease_trailers", |window| {
8274 self.layout_crease_trailers(
8275 row_infos.iter().copied(),
8276 &snapshot,
8277 window,
8278 cx,
8279 )
8280 });
8281
8282 let display_hunks = self.layout_gutter_diff_hunks(
8283 line_height,
8284 &gutter_hitbox,
8285 start_row..end_row,
8286 &snapshot,
8287 window,
8288 cx,
8289 );
8290
8291 let mut line_layouts = Self::layout_lines(
8292 start_row..end_row,
8293 &snapshot,
8294 &self.style,
8295 editor_width,
8296 is_row_soft_wrapped,
8297 window,
8298 cx,
8299 );
8300 let new_renrerer_widths = line_layouts
8301 .iter()
8302 .flat_map(|layout| &layout.fragments)
8303 .filter_map(|fragment| {
8304 if let LineFragment::Element { id, size, .. } = fragment {
8305 Some((*id, size.width))
8306 } else {
8307 None
8308 }
8309 });
8310 if self.editor.update(cx, |editor, cx| {
8311 editor.update_renderer_widths(new_renrerer_widths, cx)
8312 }) {
8313 // If the fold widths have changed, we need to prepaint
8314 // the element again to account for any changes in
8315 // wrapping.
8316 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
8317 }
8318
8319 let longest_line_blame_width = self
8320 .editor
8321 .update(cx, |editor, cx| {
8322 if !editor.show_git_blame_inline {
8323 return None;
8324 }
8325 let blame = editor.blame.as_ref()?;
8326 let blame_entry = blame
8327 .update(cx, |blame, cx| {
8328 let row_infos =
8329 snapshot.row_infos(snapshot.longest_row()).next()?;
8330 blame.blame_for_rows(&[row_infos], cx).next()
8331 })
8332 .flatten()?;
8333 let mut element = render_inline_blame_entry(blame_entry, &style, cx)?;
8334 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
8335 Some(
8336 element
8337 .layout_as_root(AvailableSpace::min_size(), window, cx)
8338 .width
8339 + inline_blame_padding,
8340 )
8341 })
8342 .unwrap_or(Pixels::ZERO);
8343
8344 let longest_line_width = layout_line(
8345 snapshot.longest_row(),
8346 &snapshot,
8347 &style,
8348 editor_width,
8349 is_row_soft_wrapped,
8350 window,
8351 cx,
8352 )
8353 .width;
8354
8355 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
8356 text_hitbox.bounds,
8357 glyph_grid_cell,
8358 size(longest_line_width, max_row.as_f32() * line_height),
8359 longest_line_blame_width,
8360 editor_width,
8361 EditorSettings::get_global(cx),
8362 );
8363
8364 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
8365
8366 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
8367 snapshot.sticky_header_excerpt(scroll_position.y)
8368 } else {
8369 None
8370 };
8371 let sticky_header_excerpt_id =
8372 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
8373
8374 let blocks = window.with_element_namespace("blocks", |window| {
8375 self.render_blocks(
8376 start_row..end_row,
8377 &snapshot,
8378 &hitbox,
8379 &text_hitbox,
8380 editor_width,
8381 &mut scroll_width,
8382 &editor_margins,
8383 em_width,
8384 gutter_dimensions.full_width(),
8385 line_height,
8386 &mut line_layouts,
8387 &local_selections,
8388 &selected_buffer_ids,
8389 is_row_soft_wrapped,
8390 sticky_header_excerpt_id,
8391 window,
8392 cx,
8393 )
8394 });
8395 let (mut blocks, row_block_types) = match blocks {
8396 Ok(blocks) => blocks,
8397 Err(resized_blocks) => {
8398 self.editor.update(cx, |editor, cx| {
8399 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
8400 });
8401 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
8402 }
8403 };
8404
8405 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
8406 window.with_element_namespace("blocks", |window| {
8407 self.layout_sticky_buffer_header(
8408 sticky_header_excerpt,
8409 scroll_position.y,
8410 line_height,
8411 right_margin,
8412 &snapshot,
8413 &hitbox,
8414 &selected_buffer_ids,
8415 &blocks,
8416 window,
8417 cx,
8418 )
8419 })
8420 });
8421
8422 let start_buffer_row =
8423 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
8424 let end_buffer_row =
8425 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
8426
8427 let scroll_max = point(
8428 ((scroll_width - editor_content_width) / em_advance).max(0.0),
8429 max_scroll_top,
8430 );
8431
8432 self.editor.update(cx, |editor, cx| {
8433 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
8434
8435 let autoscrolled = if autoscroll_horizontally {
8436 editor.autoscroll_horizontally(
8437 start_row,
8438 editor_content_width,
8439 scroll_width,
8440 em_advance,
8441 &line_layouts,
8442 cx,
8443 )
8444 } else {
8445 false
8446 };
8447
8448 if clamped || autoscrolled {
8449 snapshot = editor.snapshot(window, cx);
8450 scroll_position = snapshot.scroll_position();
8451 }
8452 });
8453
8454 let scroll_pixel_position = point(
8455 scroll_position.x * em_advance,
8456 scroll_position.y * line_height,
8457 );
8458 let indent_guides = self.layout_indent_guides(
8459 content_origin,
8460 text_hitbox.origin,
8461 start_buffer_row..end_buffer_row,
8462 scroll_pixel_position,
8463 line_height,
8464 &snapshot,
8465 window,
8466 cx,
8467 );
8468
8469 let crease_trailers =
8470 window.with_element_namespace("crease_trailers", |window| {
8471 self.prepaint_crease_trailers(
8472 crease_trailers,
8473 &line_layouts,
8474 line_height,
8475 content_origin,
8476 scroll_pixel_position,
8477 em_width,
8478 window,
8479 cx,
8480 )
8481 });
8482
8483 let (inline_completion_popover, inline_completion_popover_origin) = self
8484 .editor
8485 .update(cx, |editor, cx| {
8486 editor.render_edit_prediction_popover(
8487 &text_hitbox.bounds,
8488 content_origin,
8489 right_margin,
8490 &snapshot,
8491 start_row..end_row,
8492 scroll_position.y,
8493 scroll_position.y + height_in_lines,
8494 &line_layouts,
8495 line_height,
8496 scroll_pixel_position,
8497 newest_selection_head,
8498 editor_width,
8499 &style,
8500 window,
8501 cx,
8502 )
8503 })
8504 .unzip();
8505
8506 let mut inline_diagnostics = self.layout_inline_diagnostics(
8507 &line_layouts,
8508 &crease_trailers,
8509 &row_block_types,
8510 content_origin,
8511 scroll_pixel_position,
8512 inline_completion_popover_origin,
8513 start_row,
8514 end_row,
8515 line_height,
8516 em_width,
8517 &style,
8518 window,
8519 cx,
8520 );
8521
8522 let mut inline_blame_layout = None;
8523 let mut inline_code_actions = None;
8524 if let Some(newest_selection_head) = newest_selection_head {
8525 let display_row = newest_selection_head.row();
8526 if (start_row..end_row).contains(&display_row)
8527 && !row_block_types.contains_key(&display_row)
8528 {
8529 inline_code_actions = self.layout_inline_code_actions(
8530 newest_selection_head,
8531 content_origin,
8532 scroll_pixel_position,
8533 line_height,
8534 &snapshot,
8535 window,
8536 cx,
8537 );
8538
8539 let line_ix = display_row.minus(start_row) as usize;
8540 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
8541 row_infos.get(line_ix),
8542 line_layouts.get(line_ix),
8543 crease_trailers.get(line_ix),
8544 ) {
8545 let crease_trailer_layout = crease_trailer.as_ref();
8546 if let Some(layout) = self.layout_inline_blame(
8547 display_row,
8548 row_info,
8549 line_layout,
8550 crease_trailer_layout,
8551 em_width,
8552 content_origin,
8553 scroll_pixel_position,
8554 line_height,
8555 &text_hitbox,
8556 window,
8557 cx,
8558 ) {
8559 inline_blame_layout = Some(layout);
8560 // Blame overrides inline diagnostics
8561 inline_diagnostics.remove(&display_row);
8562 }
8563 } else {
8564 log::error!(
8565 "bug: line_ix {} is out of bounds - row_infos.len(): {}, line_layouts.len(): {}, crease_trailers.len(): {}",
8566 line_ix,
8567 row_infos.len(),
8568 line_layouts.len(),
8569 crease_trailers.len(),
8570 );
8571 }
8572 }
8573 }
8574
8575 let blamed_display_rows = self.layout_blame_entries(
8576 &row_infos,
8577 em_width,
8578 scroll_position,
8579 line_height,
8580 &gutter_hitbox,
8581 gutter_dimensions.git_blame_entries_width,
8582 window,
8583 cx,
8584 );
8585
8586 self.editor.update(cx, |editor, cx| {
8587 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
8588
8589 let autoscrolled = if autoscroll_horizontally {
8590 editor.autoscroll_horizontally(
8591 start_row,
8592 editor_content_width,
8593 scroll_width,
8594 em_width,
8595 &line_layouts,
8596 cx,
8597 )
8598 } else {
8599 false
8600 };
8601
8602 if clamped || autoscrolled {
8603 snapshot = editor.snapshot(window, cx);
8604 scroll_position = snapshot.scroll_position();
8605 }
8606 });
8607
8608 let line_elements = self.prepaint_lines(
8609 start_row,
8610 &mut line_layouts,
8611 line_height,
8612 scroll_pixel_position,
8613 content_origin,
8614 window,
8615 cx,
8616 );
8617
8618 window.with_element_namespace("blocks", |window| {
8619 self.layout_blocks(
8620 &mut blocks,
8621 &hitbox,
8622 line_height,
8623 scroll_pixel_position,
8624 window,
8625 cx,
8626 );
8627 });
8628
8629 let cursors = self.collect_cursors(&snapshot, cx);
8630 let visible_row_range = start_row..end_row;
8631 let non_visible_cursors = cursors
8632 .iter()
8633 .any(|c| !visible_row_range.contains(&c.0.row()));
8634
8635 let visible_cursors = self.layout_visible_cursors(
8636 &snapshot,
8637 &selections,
8638 &row_block_types,
8639 start_row..end_row,
8640 &line_layouts,
8641 &text_hitbox,
8642 content_origin,
8643 scroll_position,
8644 scroll_pixel_position,
8645 line_height,
8646 em_width,
8647 em_advance,
8648 autoscroll_containing_element,
8649 window,
8650 cx,
8651 );
8652
8653 let scrollbars_layout = self.layout_scrollbars(
8654 &snapshot,
8655 &scrollbar_layout_information,
8656 content_offset,
8657 scroll_position,
8658 non_visible_cursors,
8659 right_margin,
8660 editor_width,
8661 window,
8662 cx,
8663 );
8664
8665 let gutter_settings = EditorSettings::get_global(cx).gutter;
8666
8667 let context_menu_layout =
8668 if let Some(newest_selection_head) = newest_selection_head {
8669 let newest_selection_point =
8670 newest_selection_head.to_point(&snapshot.display_snapshot);
8671 if (start_row..end_row).contains(&newest_selection_head.row()) {
8672 self.layout_cursor_popovers(
8673 line_height,
8674 &text_hitbox,
8675 content_origin,
8676 right_margin,
8677 start_row,
8678 scroll_pixel_position,
8679 &line_layouts,
8680 newest_selection_head,
8681 newest_selection_point,
8682 &style,
8683 window,
8684 cx,
8685 )
8686 } else {
8687 None
8688 }
8689 } else {
8690 None
8691 };
8692
8693 self.layout_gutter_menu(
8694 line_height,
8695 &text_hitbox,
8696 content_origin,
8697 right_margin,
8698 scroll_pixel_position,
8699 gutter_dimensions.width - gutter_dimensions.left_padding,
8700 window,
8701 cx,
8702 );
8703
8704 let test_indicators = if gutter_settings.runnables {
8705 self.layout_run_indicators(
8706 line_height,
8707 start_row..end_row,
8708 &row_infos,
8709 scroll_pixel_position,
8710 &gutter_dimensions,
8711 &gutter_hitbox,
8712 &display_hunks,
8713 &snapshot,
8714 &mut breakpoint_rows,
8715 window,
8716 cx,
8717 )
8718 } else {
8719 Vec::new()
8720 };
8721
8722 let show_breakpoints = snapshot
8723 .show_breakpoints
8724 .unwrap_or(gutter_settings.breakpoints);
8725 let breakpoints = if show_breakpoints {
8726 self.layout_breakpoints(
8727 line_height,
8728 start_row..end_row,
8729 scroll_pixel_position,
8730 &gutter_dimensions,
8731 &gutter_hitbox,
8732 &display_hunks,
8733 &snapshot,
8734 breakpoint_rows,
8735 &row_infos,
8736 window,
8737 cx,
8738 )
8739 } else {
8740 Vec::new()
8741 };
8742
8743 self.layout_signature_help(
8744 &hitbox,
8745 content_origin,
8746 scroll_pixel_position,
8747 newest_selection_head,
8748 start_row,
8749 &line_layouts,
8750 line_height,
8751 em_width,
8752 context_menu_layout,
8753 window,
8754 cx,
8755 );
8756
8757 if !cx.has_active_drag() {
8758 self.layout_hover_popovers(
8759 &snapshot,
8760 &hitbox,
8761 start_row..end_row,
8762 content_origin,
8763 scroll_pixel_position,
8764 &line_layouts,
8765 line_height,
8766 em_width,
8767 context_menu_layout,
8768 window,
8769 cx,
8770 );
8771 }
8772
8773 let mouse_context_menu = self.layout_mouse_context_menu(
8774 &snapshot,
8775 start_row..end_row,
8776 content_origin,
8777 window,
8778 cx,
8779 );
8780
8781 window.with_element_namespace("crease_toggles", |window| {
8782 self.prepaint_crease_toggles(
8783 &mut crease_toggles,
8784 line_height,
8785 &gutter_dimensions,
8786 gutter_settings,
8787 scroll_pixel_position,
8788 &gutter_hitbox,
8789 window,
8790 cx,
8791 )
8792 });
8793
8794 window.with_element_namespace("expand_toggles", |window| {
8795 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
8796 });
8797
8798 let minimap = window.with_element_namespace("minimap", |window| {
8799 self.layout_minimap(
8800 &snapshot,
8801 minimap_width,
8802 scroll_position,
8803 &scrollbar_layout_information,
8804 scrollbars_layout.as_ref(),
8805 window,
8806 cx,
8807 )
8808 });
8809
8810 let invisible_symbol_font_size = font_size / 2.;
8811 let tab_invisible = window.text_system().shape_line(
8812 "→".into(),
8813 invisible_symbol_font_size,
8814 &[TextRun {
8815 len: "→".len(),
8816 font: self.style.text.font(),
8817 color: cx.theme().colors().editor_invisible,
8818 background_color: None,
8819 underline: None,
8820 strikethrough: None,
8821 }],
8822 );
8823 let space_invisible = window.text_system().shape_line(
8824 "•".into(),
8825 invisible_symbol_font_size,
8826 &[TextRun {
8827 len: "•".len(),
8828 font: self.style.text.font(),
8829 color: cx.theme().colors().editor_invisible,
8830 background_color: None,
8831 underline: None,
8832 strikethrough: None,
8833 }],
8834 );
8835
8836 let mode = snapshot.mode.clone();
8837
8838 let (diff_hunk_controls, diff_hunk_control_bounds) = if is_read_only {
8839 (vec![], vec![])
8840 } else {
8841 self.layout_diff_hunk_controls(
8842 start_row..end_row,
8843 &row_infos,
8844 &text_hitbox,
8845 newest_selection_head,
8846 line_height,
8847 right_margin,
8848 scroll_pixel_position,
8849 &display_hunks,
8850 &highlighted_rows,
8851 self.editor.clone(),
8852 window,
8853 cx,
8854 )
8855 };
8856
8857 let position_map = Rc::new(PositionMap {
8858 size: bounds.size,
8859 visible_row_range,
8860 scroll_pixel_position,
8861 scroll_max,
8862 line_layouts,
8863 line_height,
8864 em_width,
8865 em_advance,
8866 snapshot,
8867 gutter_hitbox: gutter_hitbox.clone(),
8868 text_hitbox: text_hitbox.clone(),
8869 inline_blame_bounds: inline_blame_layout
8870 .as_ref()
8871 .map(|layout| (layout.bounds, layout.entry.clone())),
8872 display_hunks: display_hunks.clone(),
8873 diff_hunk_control_bounds: diff_hunk_control_bounds.clone(),
8874 });
8875
8876 self.editor.update(cx, |editor, _| {
8877 editor.last_position_map = Some(position_map.clone())
8878 });
8879
8880 EditorLayout {
8881 mode,
8882 position_map,
8883 visible_display_row_range: start_row..end_row,
8884 wrap_guides,
8885 indent_guides,
8886 hitbox,
8887 gutter_hitbox,
8888 display_hunks,
8889 content_origin,
8890 scrollbars_layout,
8891 minimap,
8892 active_rows,
8893 highlighted_rows,
8894 highlighted_ranges,
8895 highlighted_gutter_ranges,
8896 redacted_ranges,
8897 document_colors,
8898 line_elements,
8899 line_numbers,
8900 blamed_display_rows,
8901 inline_diagnostics,
8902 inline_blame_layout,
8903 inline_code_actions,
8904 blocks,
8905 cursors,
8906 visible_cursors,
8907 selections,
8908 inline_completion_popover,
8909 diff_hunk_controls,
8910 mouse_context_menu,
8911 test_indicators,
8912 breakpoints,
8913 crease_toggles,
8914 crease_trailers,
8915 tab_invisible,
8916 space_invisible,
8917 sticky_buffer_header,
8918 expand_toggles,
8919 }
8920 })
8921 })
8922 })
8923 }
8924
8925 fn paint(
8926 &mut self,
8927 _: Option<&GlobalElementId>,
8928 _inspector_id: Option<&gpui::InspectorElementId>,
8929 bounds: Bounds<gpui::Pixels>,
8930 _: &mut Self::RequestLayoutState,
8931 layout: &mut Self::PrepaintState,
8932 window: &mut Window,
8933 cx: &mut App,
8934 ) {
8935 let focus_handle = self.editor.focus_handle(cx);
8936 let key_context = self
8937 .editor
8938 .update(cx, |editor, cx| editor.key_context(window, cx));
8939
8940 window.set_key_context(key_context);
8941 window.handle_input(
8942 &focus_handle,
8943 ElementInputHandler::new(bounds, self.editor.clone()),
8944 cx,
8945 );
8946 self.register_actions(window, cx);
8947 self.register_key_listeners(window, cx, layout);
8948
8949 let text_style = TextStyleRefinement {
8950 font_size: Some(self.style.text.font_size),
8951 line_height: Some(self.style.text.line_height),
8952 ..Default::default()
8953 };
8954 let rem_size = self.rem_size(cx);
8955 window.with_rem_size(rem_size, |window| {
8956 window.with_text_style(Some(text_style), |window| {
8957 window.with_content_mask(Some(ContentMask { bounds }), |window| {
8958 self.paint_mouse_listeners(layout, window, cx);
8959 self.paint_background(layout, window, cx);
8960 self.paint_indent_guides(layout, window, cx);
8961
8962 if layout.gutter_hitbox.size.width > Pixels::ZERO {
8963 self.paint_blamed_display_rows(layout, window, cx);
8964 self.paint_line_numbers(layout, window, cx);
8965 }
8966
8967 self.paint_text(layout, window, cx);
8968
8969 if layout.gutter_hitbox.size.width > Pixels::ZERO {
8970 self.paint_gutter_highlights(layout, window, cx);
8971 self.paint_gutter_indicators(layout, window, cx);
8972 }
8973
8974 if !layout.blocks.is_empty() {
8975 window.with_element_namespace("blocks", |window| {
8976 self.paint_blocks(layout, window, cx);
8977 });
8978 }
8979
8980 window.with_element_namespace("blocks", |window| {
8981 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
8982 sticky_header.paint(window, cx)
8983 }
8984 });
8985
8986 self.paint_minimap(layout, window, cx);
8987 self.paint_scrollbars(layout, window, cx);
8988 self.paint_inline_completion_popover(layout, window, cx);
8989 self.paint_mouse_context_menu(layout, window, cx);
8990 });
8991 })
8992 })
8993 }
8994}
8995
8996pub(super) fn gutter_bounds(
8997 editor_bounds: Bounds<Pixels>,
8998 gutter_dimensions: GutterDimensions,
8999) -> Bounds<Pixels> {
9000 Bounds {
9001 origin: editor_bounds.origin,
9002 size: size(gutter_dimensions.width, editor_bounds.size.height),
9003 }
9004}
9005
9006#[derive(Clone, Copy)]
9007struct ContextMenuLayout {
9008 y_flipped: bool,
9009 bounds: Bounds<Pixels>,
9010}
9011
9012/// Holds information required for layouting the editor scrollbars.
9013struct ScrollbarLayoutInformation {
9014 /// The bounds of the editor area (excluding the content offset).
9015 editor_bounds: Bounds<Pixels>,
9016 /// The available range to scroll within the document.
9017 scroll_range: Size<Pixels>,
9018 /// The space available for one glyph in the editor.
9019 glyph_grid_cell: Size<Pixels>,
9020}
9021
9022impl ScrollbarLayoutInformation {
9023 pub fn new(
9024 editor_bounds: Bounds<Pixels>,
9025 glyph_grid_cell: Size<Pixels>,
9026 document_size: Size<Pixels>,
9027 longest_line_blame_width: Pixels,
9028 editor_width: Pixels,
9029 settings: &EditorSettings,
9030 ) -> Self {
9031 let vertical_overscroll = match settings.scroll_beyond_last_line {
9032 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
9033 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
9034 ScrollBeyondLastLine::VerticalScrollMargin => {
9035 (1.0 + settings.vertical_scroll_margin) * glyph_grid_cell.height
9036 }
9037 };
9038
9039 let right_margin = if document_size.width + longest_line_blame_width >= editor_width {
9040 glyph_grid_cell.width
9041 } else {
9042 px(0.0)
9043 };
9044
9045 let overscroll = size(right_margin + longest_line_blame_width, vertical_overscroll);
9046
9047 let scroll_range = document_size + overscroll;
9048
9049 ScrollbarLayoutInformation {
9050 editor_bounds,
9051 scroll_range,
9052 glyph_grid_cell,
9053 }
9054 }
9055}
9056
9057impl IntoElement for EditorElement {
9058 type Element = Self;
9059
9060 fn into_element(self) -> Self::Element {
9061 self
9062 }
9063}
9064
9065pub struct EditorLayout {
9066 position_map: Rc<PositionMap>,
9067 hitbox: Hitbox,
9068 gutter_hitbox: Hitbox,
9069 content_origin: gpui::Point<Pixels>,
9070 scrollbars_layout: Option<EditorScrollbars>,
9071 minimap: Option<MinimapLayout>,
9072 mode: EditorMode,
9073 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
9074 indent_guides: Option<Vec<IndentGuideLayout>>,
9075 visible_display_row_range: Range<DisplayRow>,
9076 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
9077 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
9078 line_elements: SmallVec<[AnyElement; 1]>,
9079 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
9080 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
9081 blamed_display_rows: Option<Vec<AnyElement>>,
9082 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
9083 inline_blame_layout: Option<InlineBlameLayout>,
9084 inline_code_actions: Option<AnyElement>,
9085 blocks: Vec<BlockLayout>,
9086 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
9087 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
9088 redacted_ranges: Vec<Range<DisplayPoint>>,
9089 cursors: Vec<(DisplayPoint, Hsla)>,
9090 visible_cursors: Vec<CursorLayout>,
9091 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
9092 test_indicators: Vec<AnyElement>,
9093 breakpoints: Vec<AnyElement>,
9094 crease_toggles: Vec<Option<AnyElement>>,
9095 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
9096 diff_hunk_controls: Vec<AnyElement>,
9097 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
9098 inline_completion_popover: Option<AnyElement>,
9099 mouse_context_menu: Option<AnyElement>,
9100 tab_invisible: ShapedLine,
9101 space_invisible: ShapedLine,
9102 sticky_buffer_header: Option<AnyElement>,
9103 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
9104}
9105
9106impl EditorLayout {
9107 fn line_end_overshoot(&self) -> Pixels {
9108 0.15 * self.position_map.line_height
9109 }
9110}
9111
9112struct LineNumberLayout {
9113 shaped_line: ShapedLine,
9114 hitbox: Option<Hitbox>,
9115}
9116
9117struct ColoredRange<T> {
9118 start: T,
9119 end: T,
9120 color: Hsla,
9121}
9122
9123impl Along for ScrollbarAxes {
9124 type Unit = bool;
9125
9126 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
9127 match axis {
9128 ScrollbarAxis::Horizontal => self.horizontal,
9129 ScrollbarAxis::Vertical => self.vertical,
9130 }
9131 }
9132
9133 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
9134 match axis {
9135 ScrollbarAxis::Horizontal => ScrollbarAxes {
9136 horizontal: f(self.horizontal),
9137 vertical: self.vertical,
9138 },
9139 ScrollbarAxis::Vertical => ScrollbarAxes {
9140 horizontal: self.horizontal,
9141 vertical: f(self.vertical),
9142 },
9143 }
9144 }
9145}
9146
9147#[derive(Clone)]
9148struct EditorScrollbars {
9149 pub vertical: Option<ScrollbarLayout>,
9150 pub horizontal: Option<ScrollbarLayout>,
9151 pub visible: bool,
9152}
9153
9154impl EditorScrollbars {
9155 pub fn from_scrollbar_axes(
9156 settings_visibility: ScrollbarAxes,
9157 layout_information: &ScrollbarLayoutInformation,
9158 content_offset: gpui::Point<Pixels>,
9159 scroll_position: gpui::Point<f32>,
9160 scrollbar_width: Pixels,
9161 right_margin: Pixels,
9162 editor_width: Pixels,
9163 show_scrollbars: bool,
9164 scrollbar_state: Option<&ActiveScrollbarState>,
9165 window: &mut Window,
9166 ) -> Self {
9167 let ScrollbarLayoutInformation {
9168 editor_bounds,
9169 scroll_range,
9170 glyph_grid_cell,
9171 } = layout_information;
9172
9173 let viewport_size = size(editor_width, editor_bounds.size.height);
9174
9175 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
9176 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
9177 Corner::BottomLeft,
9178 editor_bounds.bottom_left(),
9179 size(
9180 // The horizontal viewport size differs from the space available for the
9181 // horizontal scrollbar, so we have to manually stich it together here.
9182 editor_bounds.size.width - right_margin,
9183 scrollbar_width,
9184 ),
9185 ),
9186 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
9187 Corner::TopRight,
9188 editor_bounds.top_right(),
9189 size(scrollbar_width, viewport_size.height),
9190 ),
9191 };
9192
9193 let mut create_scrollbar_layout = |axis| {
9194 settings_visibility
9195 .along(axis)
9196 .then(|| {
9197 (
9198 viewport_size.along(axis) - content_offset.along(axis),
9199 scroll_range.along(axis),
9200 )
9201 })
9202 .filter(|(viewport_size, scroll_range)| {
9203 // The scrollbar should only be rendered if the content does
9204 // not entirely fit into the editor
9205 // However, this only applies to the horizontal scrollbar, as information about the
9206 // vertical scrollbar layout is always needed for scrollbar diagnostics.
9207 axis != ScrollbarAxis::Horizontal || viewport_size < scroll_range
9208 })
9209 .map(|(viewport_size, scroll_range)| {
9210 ScrollbarLayout::new(
9211 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
9212 viewport_size,
9213 scroll_range,
9214 glyph_grid_cell.along(axis),
9215 content_offset.along(axis),
9216 scroll_position.along(axis),
9217 show_scrollbars,
9218 axis,
9219 )
9220 .with_thumb_state(
9221 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
9222 )
9223 })
9224 };
9225
9226 Self {
9227 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
9228 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
9229 visible: show_scrollbars,
9230 }
9231 }
9232
9233 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
9234 [
9235 (&self.vertical, ScrollbarAxis::Vertical),
9236 (&self.horizontal, ScrollbarAxis::Horizontal),
9237 ]
9238 .into_iter()
9239 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
9240 }
9241
9242 /// Returns the currently hovered scrollbar axis, if any.
9243 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
9244 self.iter_scrollbars()
9245 .find(|s| s.0.hitbox.is_hovered(window))
9246 }
9247}
9248
9249#[derive(Clone)]
9250struct ScrollbarLayout {
9251 hitbox: Hitbox,
9252 visible_range: Range<f32>,
9253 text_unit_size: Pixels,
9254 thumb_bounds: Option<Bounds<Pixels>>,
9255 thumb_state: ScrollbarThumbState,
9256}
9257
9258impl ScrollbarLayout {
9259 const BORDER_WIDTH: Pixels = px(1.0);
9260 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
9261 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
9262 const MIN_THUMB_SIZE: Pixels = px(25.0);
9263
9264 fn new(
9265 scrollbar_track_hitbox: Hitbox,
9266 viewport_size: Pixels,
9267 scroll_range: Pixels,
9268 glyph_space: Pixels,
9269 content_offset: Pixels,
9270 scroll_position: f32,
9271 show_thumb: bool,
9272 axis: ScrollbarAxis,
9273 ) -> Self {
9274 let track_bounds = scrollbar_track_hitbox.bounds;
9275 // The length of the track available to the scrollbar thumb. We deliberately
9276 // exclude the content size here so that the thumb aligns with the content.
9277 let track_length = track_bounds.size.along(axis) - content_offset;
9278
9279 Self::new_with_hitbox_and_track_length(
9280 scrollbar_track_hitbox,
9281 track_length,
9282 viewport_size,
9283 scroll_range,
9284 glyph_space,
9285 content_offset,
9286 scroll_position,
9287 show_thumb,
9288 axis,
9289 )
9290 }
9291
9292 fn for_minimap(
9293 minimap_track_hitbox: Hitbox,
9294 visible_lines: f32,
9295 total_editor_lines: f32,
9296 minimap_line_height: Pixels,
9297 scroll_position: f32,
9298 minimap_scroll_top: f32,
9299 show_thumb: bool,
9300 ) -> Self {
9301 // The scrollbar thumb size is calculated as
9302 // (visible_content/total_content) × scrollbar_track_length.
9303 //
9304 // For the minimap's thumb layout, we leverage this by setting the
9305 // scrollbar track length to the entire document size (using minimap line
9306 // height). This creates a thumb that exactly represents the editor
9307 // viewport scaled to minimap proportions.
9308 //
9309 // We adjust the thumb position relative to `minimap_scroll_top` to
9310 // accommodate for the deliberately oversized track.
9311 //
9312 // This approach ensures that the minimap thumb accurately reflects the
9313 // editor's current scroll position whilst nicely synchronizing the minimap
9314 // thumb and scrollbar thumb.
9315 let scroll_range = total_editor_lines * minimap_line_height;
9316 let viewport_size = visible_lines * minimap_line_height;
9317
9318 let track_top_offset = -minimap_scroll_top * minimap_line_height;
9319
9320 Self::new_with_hitbox_and_track_length(
9321 minimap_track_hitbox,
9322 scroll_range,
9323 viewport_size,
9324 scroll_range,
9325 minimap_line_height,
9326 track_top_offset,
9327 scroll_position,
9328 show_thumb,
9329 ScrollbarAxis::Vertical,
9330 )
9331 }
9332
9333 fn new_with_hitbox_and_track_length(
9334 scrollbar_track_hitbox: Hitbox,
9335 track_length: Pixels,
9336 viewport_size: Pixels,
9337 scroll_range: Pixels,
9338 glyph_space: Pixels,
9339 content_offset: Pixels,
9340 scroll_position: f32,
9341 show_thumb: bool,
9342 axis: ScrollbarAxis,
9343 ) -> Self {
9344 let text_units_per_page = viewport_size / glyph_space;
9345 let visible_range = scroll_position..scroll_position + text_units_per_page;
9346 let total_text_units = scroll_range / glyph_space;
9347
9348 let thumb_percentage = text_units_per_page / total_text_units;
9349 let thumb_size = (track_length * thumb_percentage)
9350 .max(ScrollbarLayout::MIN_THUMB_SIZE)
9351 .min(track_length);
9352
9353 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
9354
9355 let content_larger_than_viewport = text_unit_divisor > 0.;
9356
9357 let text_unit_size = if content_larger_than_viewport {
9358 (track_length - thumb_size) / text_unit_divisor
9359 } else {
9360 glyph_space
9361 };
9362
9363 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
9364 Self::thumb_bounds(
9365 &scrollbar_track_hitbox,
9366 content_offset,
9367 visible_range.start,
9368 text_unit_size,
9369 thumb_size,
9370 axis,
9371 )
9372 });
9373
9374 ScrollbarLayout {
9375 hitbox: scrollbar_track_hitbox,
9376 visible_range,
9377 text_unit_size,
9378 thumb_bounds,
9379 thumb_state: Default::default(),
9380 }
9381 }
9382
9383 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
9384 if let Some(thumb_state) = thumb_state {
9385 Self {
9386 thumb_state,
9387 ..self
9388 }
9389 } else {
9390 self
9391 }
9392 }
9393
9394 fn thumb_bounds(
9395 scrollbar_track: &Hitbox,
9396 content_offset: Pixels,
9397 visible_range_start: f32,
9398 text_unit_size: Pixels,
9399 thumb_size: Pixels,
9400 axis: ScrollbarAxis,
9401 ) -> Bounds<Pixels> {
9402 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
9403 origin + content_offset + visible_range_start * text_unit_size
9404 });
9405 Bounds::new(
9406 thumb_origin,
9407 scrollbar_track.size.apply_along(axis, |_| thumb_size),
9408 )
9409 }
9410
9411 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
9412 self.thumb_bounds
9413 .is_some_and(|bounds| bounds.contains(position))
9414 }
9415
9416 fn marker_quads_for_ranges(
9417 &self,
9418 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
9419 column: Option<usize>,
9420 ) -> Vec<PaintQuad> {
9421 struct MinMax {
9422 min: Pixels,
9423 max: Pixels,
9424 }
9425 let (x_range, height_limit) = if let Some(column) = column {
9426 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
9427 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
9428 let end = start + column_width;
9429 (
9430 Range { start, end },
9431 MinMax {
9432 min: Self::MIN_MARKER_HEIGHT,
9433 max: px(f32::MAX),
9434 },
9435 )
9436 } else {
9437 (
9438 Range {
9439 start: Self::BORDER_WIDTH,
9440 end: self.hitbox.size.width,
9441 },
9442 MinMax {
9443 min: Self::LINE_MARKER_HEIGHT,
9444 max: Self::LINE_MARKER_HEIGHT,
9445 },
9446 )
9447 };
9448
9449 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
9450 let mut pixel_ranges = row_ranges
9451 .into_iter()
9452 .map(|range| {
9453 let start_y = row_to_y(range.start);
9454 let end_y = row_to_y(range.end)
9455 + self
9456 .text_unit_size
9457 .max(height_limit.min)
9458 .min(height_limit.max);
9459 ColoredRange {
9460 start: start_y,
9461 end: end_y,
9462 color: range.color,
9463 }
9464 })
9465 .peekable();
9466
9467 let mut quads = Vec::new();
9468 while let Some(mut pixel_range) = pixel_ranges.next() {
9469 while let Some(next_pixel_range) = pixel_ranges.peek() {
9470 if pixel_range.end >= next_pixel_range.start - px(1.0)
9471 && pixel_range.color == next_pixel_range.color
9472 {
9473 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
9474 pixel_ranges.next();
9475 } else {
9476 break;
9477 }
9478 }
9479
9480 let bounds = Bounds::from_corners(
9481 point(x_range.start, pixel_range.start),
9482 point(x_range.end, pixel_range.end),
9483 );
9484 quads.push(quad(
9485 bounds,
9486 Corners::default(),
9487 pixel_range.color,
9488 Edges::default(),
9489 Hsla::transparent_black(),
9490 BorderStyle::default(),
9491 ));
9492 }
9493
9494 quads
9495 }
9496}
9497
9498struct MinimapLayout {
9499 pub minimap: AnyElement,
9500 pub thumb_layout: ScrollbarLayout,
9501 pub minimap_scroll_top: f32,
9502 pub minimap_line_height: Pixels,
9503 pub thumb_border_style: MinimapThumbBorder,
9504 pub max_scroll_top: f32,
9505}
9506
9507impl MinimapLayout {
9508 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
9509 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
9510 /// The minimap width as a percentage of the editor width.
9511 const MINIMAP_WIDTH_PCT: f32 = 0.15;
9512 /// Calculates the scroll top offset the minimap editor has to have based on the
9513 /// current scroll progress.
9514 fn calculate_minimap_top_offset(
9515 document_lines: f32,
9516 visible_editor_lines: f32,
9517 visible_minimap_lines: f32,
9518 scroll_position: f32,
9519 ) -> f32 {
9520 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
9521 if non_visible_document_lines == 0. {
9522 0.
9523 } else {
9524 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
9525 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
9526 }
9527 }
9528}
9529
9530struct CreaseTrailerLayout {
9531 element: AnyElement,
9532 bounds: Bounds<Pixels>,
9533}
9534
9535pub(crate) struct PositionMap {
9536 pub size: Size<Pixels>,
9537 pub line_height: Pixels,
9538 pub scroll_pixel_position: gpui::Point<Pixels>,
9539 pub scroll_max: gpui::Point<f32>,
9540 pub em_width: Pixels,
9541 pub em_advance: Pixels,
9542 pub visible_row_range: Range<DisplayRow>,
9543 pub line_layouts: Vec<LineWithInvisibles>,
9544 pub snapshot: EditorSnapshot,
9545 pub text_hitbox: Hitbox,
9546 pub gutter_hitbox: Hitbox,
9547 pub inline_blame_bounds: Option<(Bounds<Pixels>, BlameEntry)>,
9548 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
9549 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
9550}
9551
9552#[derive(Debug, Copy, Clone)]
9553pub struct PointForPosition {
9554 pub previous_valid: DisplayPoint,
9555 pub next_valid: DisplayPoint,
9556 pub exact_unclipped: DisplayPoint,
9557 pub column_overshoot_after_line_end: u32,
9558}
9559
9560impl PointForPosition {
9561 pub fn as_valid(&self) -> Option<DisplayPoint> {
9562 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
9563 Some(self.previous_valid)
9564 } else {
9565 None
9566 }
9567 }
9568
9569 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
9570 let Some(valid_point) = self.as_valid() else {
9571 return false;
9572 };
9573 let range = selection.range();
9574
9575 let candidate_row = valid_point.row();
9576 let candidate_col = valid_point.column();
9577
9578 let start_row = range.start.row();
9579 let start_col = range.start.column();
9580 let end_row = range.end.row();
9581 let end_col = range.end.column();
9582
9583 if candidate_row < start_row || candidate_row > end_row {
9584 false
9585 } else if start_row == end_row {
9586 candidate_col >= start_col && candidate_col < end_col
9587 } else {
9588 if candidate_row == start_row {
9589 candidate_col >= start_col
9590 } else if candidate_row == end_row {
9591 candidate_col < end_col
9592 } else {
9593 true
9594 }
9595 }
9596 }
9597}
9598
9599impl PositionMap {
9600 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
9601 let text_bounds = self.text_hitbox.bounds;
9602 let scroll_position = self.snapshot.scroll_position();
9603 let position = position - text_bounds.origin;
9604 let y = position.y.max(px(0.)).min(self.size.height);
9605 let x = position.x + (scroll_position.x * self.em_advance);
9606 let row = ((y / self.line_height) + scroll_position.y) as u32;
9607
9608 let (column, x_overshoot_after_line_end) = if let Some(line) = self
9609 .line_layouts
9610 .get(row as usize - scroll_position.y as usize)
9611 {
9612 if let Some(ix) = line.index_for_x(x) {
9613 (ix as u32, px(0.))
9614 } else {
9615 (line.len as u32, px(0.).max(x - line.width))
9616 }
9617 } else {
9618 (0, x)
9619 };
9620
9621 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
9622 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
9623 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
9624
9625 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
9626 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
9627 PointForPosition {
9628 previous_valid,
9629 next_valid,
9630 exact_unclipped,
9631 column_overshoot_after_line_end,
9632 }
9633 }
9634}
9635
9636struct BlockLayout {
9637 id: BlockId,
9638 x_offset: Pixels,
9639 row: Option<DisplayRow>,
9640 element: AnyElement,
9641 available_space: Size<AvailableSpace>,
9642 style: BlockStyle,
9643 overlaps_gutter: bool,
9644 is_buffer_header: bool,
9645}
9646
9647pub fn layout_line(
9648 row: DisplayRow,
9649 snapshot: &EditorSnapshot,
9650 style: &EditorStyle,
9651 text_width: Pixels,
9652 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
9653 window: &mut Window,
9654 cx: &mut App,
9655) -> LineWithInvisibles {
9656 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
9657 LineWithInvisibles::from_chunks(
9658 chunks,
9659 &style,
9660 MAX_LINE_LEN,
9661 1,
9662 &snapshot.mode,
9663 text_width,
9664 is_row_soft_wrapped,
9665 window,
9666 cx,
9667 )
9668 .pop()
9669 .unwrap()
9670}
9671
9672#[derive(Debug)]
9673pub struct IndentGuideLayout {
9674 origin: gpui::Point<Pixels>,
9675 length: Pixels,
9676 single_indent_width: Pixels,
9677 depth: u32,
9678 active: bool,
9679 settings: IndentGuideSettings,
9680}
9681
9682pub struct CursorLayout {
9683 origin: gpui::Point<Pixels>,
9684 block_width: Pixels,
9685 line_height: Pixels,
9686 color: Hsla,
9687 shape: CursorShape,
9688 block_text: Option<ShapedLine>,
9689 cursor_name: Option<AnyElement>,
9690}
9691
9692#[derive(Debug)]
9693pub struct CursorName {
9694 string: SharedString,
9695 color: Hsla,
9696 is_top_row: bool,
9697}
9698
9699impl CursorLayout {
9700 pub fn new(
9701 origin: gpui::Point<Pixels>,
9702 block_width: Pixels,
9703 line_height: Pixels,
9704 color: Hsla,
9705 shape: CursorShape,
9706 block_text: Option<ShapedLine>,
9707 ) -> CursorLayout {
9708 CursorLayout {
9709 origin,
9710 block_width,
9711 line_height,
9712 color,
9713 shape,
9714 block_text,
9715 cursor_name: None,
9716 }
9717 }
9718
9719 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
9720 Bounds {
9721 origin: self.origin + origin,
9722 size: size(self.block_width, self.line_height),
9723 }
9724 }
9725
9726 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
9727 match self.shape {
9728 CursorShape::Bar => Bounds {
9729 origin: self.origin + origin,
9730 size: size(px(2.0), self.line_height),
9731 },
9732 CursorShape::Block | CursorShape::Hollow => Bounds {
9733 origin: self.origin + origin,
9734 size: size(self.block_width, self.line_height),
9735 },
9736 CursorShape::Underline => Bounds {
9737 origin: self.origin
9738 + origin
9739 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
9740 size: size(self.block_width, px(2.0)),
9741 },
9742 }
9743 }
9744
9745 pub fn layout(
9746 &mut self,
9747 origin: gpui::Point<Pixels>,
9748 cursor_name: Option<CursorName>,
9749 window: &mut Window,
9750 cx: &mut App,
9751 ) {
9752 if let Some(cursor_name) = cursor_name {
9753 let bounds = self.bounds(origin);
9754 let text_size = self.line_height / 1.5;
9755
9756 let name_origin = if cursor_name.is_top_row {
9757 point(bounds.right() - px(1.), bounds.top())
9758 } else {
9759 match self.shape {
9760 CursorShape::Bar => point(
9761 bounds.right() - px(2.),
9762 bounds.top() - text_size / 2. - px(1.),
9763 ),
9764 _ => point(
9765 bounds.right() - px(1.),
9766 bounds.top() - text_size / 2. - px(1.),
9767 ),
9768 }
9769 };
9770 let mut name_element = div()
9771 .bg(self.color)
9772 .text_size(text_size)
9773 .px_0p5()
9774 .line_height(text_size + px(2.))
9775 .text_color(cursor_name.color)
9776 .child(cursor_name.string.clone())
9777 .into_any_element();
9778
9779 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
9780
9781 self.cursor_name = Some(name_element);
9782 }
9783 }
9784
9785 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
9786 let bounds = self.bounds(origin);
9787
9788 //Draw background or border quad
9789 let cursor = if matches!(self.shape, CursorShape::Hollow) {
9790 outline(bounds, self.color, BorderStyle::Solid)
9791 } else {
9792 fill(bounds, self.color)
9793 };
9794
9795 if let Some(name) = &mut self.cursor_name {
9796 name.paint(window, cx);
9797 }
9798
9799 window.paint_quad(cursor);
9800
9801 if let Some(block_text) = &self.block_text {
9802 block_text
9803 .paint(self.origin + origin, self.line_height, window, cx)
9804 .log_err();
9805 }
9806 }
9807
9808 pub fn shape(&self) -> CursorShape {
9809 self.shape
9810 }
9811}
9812
9813#[derive(Debug)]
9814pub struct HighlightedRange {
9815 pub start_y: Pixels,
9816 pub line_height: Pixels,
9817 pub lines: Vec<HighlightedRangeLine>,
9818 pub color: Hsla,
9819 pub corner_radius: Pixels,
9820}
9821
9822#[derive(Debug)]
9823pub struct HighlightedRangeLine {
9824 pub start_x: Pixels,
9825 pub end_x: Pixels,
9826}
9827
9828impl HighlightedRange {
9829 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
9830 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
9831 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
9832 self.paint_lines(
9833 self.start_y + self.line_height,
9834 &self.lines[1..],
9835 fill,
9836 bounds,
9837 window,
9838 );
9839 } else {
9840 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
9841 }
9842 }
9843
9844 fn paint_lines(
9845 &self,
9846 start_y: Pixels,
9847 lines: &[HighlightedRangeLine],
9848 fill: bool,
9849 _bounds: Bounds<Pixels>,
9850 window: &mut Window,
9851 ) {
9852 if lines.is_empty() {
9853 return;
9854 }
9855
9856 let first_line = lines.first().unwrap();
9857 let last_line = lines.last().unwrap();
9858
9859 let first_top_left = point(first_line.start_x, start_y);
9860 let first_top_right = point(first_line.end_x, start_y);
9861
9862 let curve_height = point(Pixels::ZERO, self.corner_radius);
9863 let curve_width = |start_x: Pixels, end_x: Pixels| {
9864 let max = (end_x - start_x) / 2.;
9865 let width = if max < self.corner_radius {
9866 max
9867 } else {
9868 self.corner_radius
9869 };
9870
9871 point(width, Pixels::ZERO)
9872 };
9873
9874 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
9875 let mut builder = if fill {
9876 gpui::PathBuilder::fill()
9877 } else {
9878 gpui::PathBuilder::stroke(px(1.))
9879 };
9880 builder.move_to(first_top_right - top_curve_width);
9881 builder.curve_to(first_top_right + curve_height, first_top_right);
9882
9883 let mut iter = lines.iter().enumerate().peekable();
9884 while let Some((ix, line)) = iter.next() {
9885 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
9886
9887 if let Some((_, next_line)) = iter.peek() {
9888 let next_top_right = point(next_line.end_x, bottom_right.y);
9889
9890 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
9891 Ordering::Equal => {
9892 builder.line_to(bottom_right);
9893 }
9894 Ordering::Less => {
9895 let curve_width = curve_width(next_top_right.x, bottom_right.x);
9896 builder.line_to(bottom_right - curve_height);
9897 if self.corner_radius > Pixels::ZERO {
9898 builder.curve_to(bottom_right - curve_width, bottom_right);
9899 }
9900 builder.line_to(next_top_right + curve_width);
9901 if self.corner_radius > Pixels::ZERO {
9902 builder.curve_to(next_top_right + curve_height, next_top_right);
9903 }
9904 }
9905 Ordering::Greater => {
9906 let curve_width = curve_width(bottom_right.x, next_top_right.x);
9907 builder.line_to(bottom_right - curve_height);
9908 if self.corner_radius > Pixels::ZERO {
9909 builder.curve_to(bottom_right + curve_width, bottom_right);
9910 }
9911 builder.line_to(next_top_right - curve_width);
9912 if self.corner_radius > Pixels::ZERO {
9913 builder.curve_to(next_top_right + curve_height, next_top_right);
9914 }
9915 }
9916 }
9917 } else {
9918 let curve_width = curve_width(line.start_x, line.end_x);
9919 builder.line_to(bottom_right - curve_height);
9920 if self.corner_radius > Pixels::ZERO {
9921 builder.curve_to(bottom_right - curve_width, bottom_right);
9922 }
9923
9924 let bottom_left = point(line.start_x, bottom_right.y);
9925 builder.line_to(bottom_left + curve_width);
9926 if self.corner_radius > Pixels::ZERO {
9927 builder.curve_to(bottom_left - curve_height, bottom_left);
9928 }
9929 }
9930 }
9931
9932 if first_line.start_x > last_line.start_x {
9933 let curve_width = curve_width(last_line.start_x, first_line.start_x);
9934 let second_top_left = point(last_line.start_x, start_y + self.line_height);
9935 builder.line_to(second_top_left + curve_height);
9936 if self.corner_radius > Pixels::ZERO {
9937 builder.curve_to(second_top_left + curve_width, second_top_left);
9938 }
9939 let first_bottom_left = point(first_line.start_x, second_top_left.y);
9940 builder.line_to(first_bottom_left - curve_width);
9941 if self.corner_radius > Pixels::ZERO {
9942 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
9943 }
9944 }
9945
9946 builder.line_to(first_top_left + curve_height);
9947 if self.corner_radius > Pixels::ZERO {
9948 builder.curve_to(first_top_left + top_curve_width, first_top_left);
9949 }
9950 builder.line_to(first_top_right - top_curve_width);
9951
9952 if let Ok(path) = builder.build() {
9953 window.paint_path(path, self.color);
9954 }
9955 }
9956}
9957
9958enum CursorPopoverType {
9959 CodeContextMenu,
9960 EditPrediction,
9961}
9962
9963pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
9964 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
9965}
9966
9967fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
9968 (delta.pow(1.2) / 300.0).into()
9969}
9970
9971pub fn register_action<T: Action>(
9972 editor: &Entity<Editor>,
9973 window: &mut Window,
9974 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
9975) {
9976 let editor = editor.clone();
9977 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
9978 let action = action.downcast_ref().unwrap();
9979 if phase == DispatchPhase::Bubble {
9980 editor.update(cx, |editor, cx| {
9981 listener(editor, action, window, cx);
9982 })
9983 }
9984 })
9985}
9986
9987fn compute_auto_height_layout(
9988 editor: &mut Editor,
9989 min_lines: usize,
9990 max_lines: Option<usize>,
9991 max_line_number_width: Pixels,
9992 known_dimensions: Size<Option<Pixels>>,
9993 available_width: AvailableSpace,
9994 window: &mut Window,
9995 cx: &mut Context<Editor>,
9996) -> Option<Size<Pixels>> {
9997 let width = known_dimensions.width.or({
9998 if let AvailableSpace::Definite(available_width) = available_width {
9999 Some(available_width)
10000 } else {
10001 None
10002 }
10003 })?;
10004 if let Some(height) = known_dimensions.height {
10005 return Some(size(width, height));
10006 }
10007
10008 let style = editor.style.as_ref().unwrap();
10009 let font_id = window.text_system().resolve_font(&style.text.font());
10010 let font_size = style.text.font_size.to_pixels(window.rem_size());
10011 let line_height = style.text.line_height_in_pixels(window.rem_size());
10012 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
10013
10014 let mut snapshot = editor.snapshot(window, cx);
10015 let gutter_dimensions = snapshot
10016 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
10017 .or_else(|| {
10018 editor
10019 .offset_content
10020 .then(|| GutterDimensions::default_with_margin(font_id, font_size, cx))
10021 })
10022 .unwrap_or_default();
10023
10024 editor.gutter_dimensions = gutter_dimensions;
10025 let text_width = width - gutter_dimensions.width;
10026 let overscroll = size(em_width, px(0.));
10027
10028 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
10029 if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None) {
10030 if editor.set_wrap_width(Some(editor_width), cx) {
10031 snapshot = editor.snapshot(window, cx);
10032 }
10033 }
10034
10035 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
10036
10037 let min_height = line_height * min_lines as f32;
10038 let content_height = scroll_height.max(min_height);
10039
10040 let final_height = if let Some(max_lines) = max_lines {
10041 let max_height = line_height * max_lines as f32;
10042 content_height.min(max_height)
10043 } else {
10044 content_height
10045 };
10046
10047 Some(size(width, final_height))
10048}
10049
10050#[cfg(test)]
10051mod tests {
10052 use super::*;
10053 use crate::{
10054 Editor, MultiBuffer, SelectionEffects,
10055 display_map::{BlockPlacement, BlockProperties},
10056 editor_tests::{init_test, update_test_language_settings},
10057 };
10058 use gpui::{TestAppContext, VisualTestContext};
10059 use language::language_settings;
10060 use log::info;
10061 use std::num::NonZeroU32;
10062 use util::test::sample_text;
10063
10064 #[gpui::test]
10065 fn test_shape_line_numbers(cx: &mut TestAppContext) {
10066 init_test(cx, |_| {});
10067 let window = cx.add_window(|window, cx| {
10068 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
10069 Editor::new(EditorMode::full(), buffer, None, window, cx)
10070 });
10071
10072 let editor = window.root(cx).unwrap();
10073 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
10074 let line_height = window
10075 .update(cx, |_, window, _| {
10076 style.text.line_height_in_pixels(window.rem_size())
10077 })
10078 .unwrap();
10079 let element = EditorElement::new(&editor, style);
10080 let snapshot = window
10081 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
10082 .unwrap();
10083
10084 let layouts = cx
10085 .update_window(*window, |_, window, cx| {
10086 element.layout_line_numbers(
10087 None,
10088 GutterDimensions {
10089 left_padding: Pixels::ZERO,
10090 right_padding: Pixels::ZERO,
10091 width: px(30.0),
10092 margin: Pixels::ZERO,
10093 git_blame_entries_width: None,
10094 },
10095 line_height,
10096 gpui::Point::default(),
10097 DisplayRow(0)..DisplayRow(6),
10098 &(0..6)
10099 .map(|row| RowInfo {
10100 buffer_row: Some(row),
10101 ..Default::default()
10102 })
10103 .collect::<Vec<_>>(),
10104 &BTreeMap::default(),
10105 Some(DisplayPoint::new(DisplayRow(0), 0)),
10106 &snapshot,
10107 window,
10108 cx,
10109 )
10110 })
10111 .unwrap();
10112 assert_eq!(layouts.len(), 6);
10113
10114 let relative_rows = window
10115 .update(cx, |editor, window, cx| {
10116 let snapshot = editor.snapshot(window, cx);
10117 element.calculate_relative_line_numbers(
10118 &snapshot,
10119 &(DisplayRow(0)..DisplayRow(6)),
10120 Some(DisplayRow(3)),
10121 )
10122 })
10123 .unwrap();
10124 assert_eq!(relative_rows[&DisplayRow(0)], 3);
10125 assert_eq!(relative_rows[&DisplayRow(1)], 2);
10126 assert_eq!(relative_rows[&DisplayRow(2)], 1);
10127 // current line has no relative number
10128 assert_eq!(relative_rows[&DisplayRow(4)], 1);
10129 assert_eq!(relative_rows[&DisplayRow(5)], 2);
10130
10131 // works if cursor is before screen
10132 let relative_rows = window
10133 .update(cx, |editor, window, cx| {
10134 let snapshot = editor.snapshot(window, cx);
10135 element.calculate_relative_line_numbers(
10136 &snapshot,
10137 &(DisplayRow(3)..DisplayRow(6)),
10138 Some(DisplayRow(1)),
10139 )
10140 })
10141 .unwrap();
10142 assert_eq!(relative_rows.len(), 3);
10143 assert_eq!(relative_rows[&DisplayRow(3)], 2);
10144 assert_eq!(relative_rows[&DisplayRow(4)], 3);
10145 assert_eq!(relative_rows[&DisplayRow(5)], 4);
10146
10147 // works if cursor is after screen
10148 let relative_rows = window
10149 .update(cx, |editor, window, cx| {
10150 let snapshot = editor.snapshot(window, cx);
10151 element.calculate_relative_line_numbers(
10152 &snapshot,
10153 &(DisplayRow(0)..DisplayRow(3)),
10154 Some(DisplayRow(6)),
10155 )
10156 })
10157 .unwrap();
10158 assert_eq!(relative_rows.len(), 3);
10159 assert_eq!(relative_rows[&DisplayRow(0)], 5);
10160 assert_eq!(relative_rows[&DisplayRow(1)], 4);
10161 assert_eq!(relative_rows[&DisplayRow(2)], 3);
10162 }
10163
10164 #[gpui::test]
10165 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
10166 init_test(cx, |_| {});
10167
10168 let window = cx.add_window(|window, cx| {
10169 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
10170 Editor::new(EditorMode::full(), buffer, None, window, cx)
10171 });
10172 let cx = &mut VisualTestContext::from_window(*window, cx);
10173 let editor = window.root(cx).unwrap();
10174 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10175
10176 window
10177 .update(cx, |editor, window, cx| {
10178 editor.cursor_shape = CursorShape::Block;
10179 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
10180 s.select_ranges([
10181 Point::new(0, 0)..Point::new(1, 0),
10182 Point::new(3, 2)..Point::new(3, 3),
10183 Point::new(5, 6)..Point::new(6, 0),
10184 ]);
10185 });
10186 })
10187 .unwrap();
10188
10189 let (_, state) = cx.draw(
10190 point(px(500.), px(500.)),
10191 size(px(500.), px(500.)),
10192 |_, _| EditorElement::new(&editor, style),
10193 );
10194
10195 assert_eq!(state.selections.len(), 1);
10196 let local_selections = &state.selections[0].1;
10197 assert_eq!(local_selections.len(), 3);
10198 // moves cursor back one line
10199 assert_eq!(
10200 local_selections[0].head,
10201 DisplayPoint::new(DisplayRow(0), 6)
10202 );
10203 assert_eq!(
10204 local_selections[0].range,
10205 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
10206 );
10207
10208 // moves cursor back one column
10209 assert_eq!(
10210 local_selections[1].range,
10211 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
10212 );
10213 assert_eq!(
10214 local_selections[1].head,
10215 DisplayPoint::new(DisplayRow(3), 2)
10216 );
10217
10218 // leaves cursor on the max point
10219 assert_eq!(
10220 local_selections[2].range,
10221 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
10222 );
10223 assert_eq!(
10224 local_selections[2].head,
10225 DisplayPoint::new(DisplayRow(6), 0)
10226 );
10227
10228 // active lines does not include 1 (even though the range of the selection does)
10229 assert_eq!(
10230 state.active_rows.keys().cloned().collect::<Vec<_>>(),
10231 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
10232 );
10233 }
10234
10235 #[gpui::test]
10236 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
10237 init_test(cx, |_| {});
10238
10239 let window = cx.add_window(|window, cx| {
10240 let buffer = MultiBuffer::build_simple("", cx);
10241 Editor::new(EditorMode::full(), buffer, None, window, cx)
10242 });
10243 let cx = &mut VisualTestContext::from_window(*window, cx);
10244 let editor = window.root(cx).unwrap();
10245 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10246 window
10247 .update(cx, |editor, window, cx| {
10248 editor.set_placeholder_text("hello", cx);
10249 editor.insert_blocks(
10250 [BlockProperties {
10251 style: BlockStyle::Fixed,
10252 placement: BlockPlacement::Above(Anchor::min()),
10253 height: Some(3),
10254 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
10255 priority: 0,
10256 render_in_minimap: true,
10257 }],
10258 None,
10259 cx,
10260 );
10261
10262 // Blur the editor so that it displays placeholder text.
10263 window.blur();
10264 })
10265 .unwrap();
10266
10267 let (_, state) = cx.draw(
10268 point(px(500.), px(500.)),
10269 size(px(500.), px(500.)),
10270 |_, _| EditorElement::new(&editor, style),
10271 );
10272 assert_eq!(state.position_map.line_layouts.len(), 4);
10273 assert_eq!(state.line_numbers.len(), 1);
10274 assert_eq!(
10275 state
10276 .line_numbers
10277 .get(&MultiBufferRow(0))
10278 .map(|line_number| line_number.shaped_line.text.as_ref()),
10279 Some("1")
10280 );
10281 }
10282
10283 #[gpui::test]
10284 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
10285 const TAB_SIZE: u32 = 4;
10286
10287 let input_text = "\t \t|\t| a b";
10288 let expected_invisibles = vec![
10289 Invisible::Tab {
10290 line_start_offset: 0,
10291 line_end_offset: TAB_SIZE as usize,
10292 },
10293 Invisible::Whitespace {
10294 line_offset: TAB_SIZE as usize,
10295 },
10296 Invisible::Tab {
10297 line_start_offset: TAB_SIZE as usize + 1,
10298 line_end_offset: TAB_SIZE as usize * 2,
10299 },
10300 Invisible::Tab {
10301 line_start_offset: TAB_SIZE as usize * 2 + 1,
10302 line_end_offset: TAB_SIZE as usize * 3,
10303 },
10304 Invisible::Whitespace {
10305 line_offset: TAB_SIZE as usize * 3 + 1,
10306 },
10307 Invisible::Whitespace {
10308 line_offset: TAB_SIZE as usize * 3 + 3,
10309 },
10310 ];
10311 assert_eq!(
10312 expected_invisibles.len(),
10313 input_text
10314 .chars()
10315 .filter(|initial_char| initial_char.is_whitespace())
10316 .count(),
10317 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
10318 );
10319
10320 for show_line_numbers in [true, false] {
10321 init_test(cx, |s| {
10322 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10323 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
10324 });
10325
10326 let actual_invisibles = collect_invisibles_from_new_editor(
10327 cx,
10328 EditorMode::full(),
10329 input_text,
10330 px(500.0),
10331 show_line_numbers,
10332 );
10333
10334 assert_eq!(expected_invisibles, actual_invisibles);
10335 }
10336 }
10337
10338 #[gpui::test]
10339 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
10340 init_test(cx, |s| {
10341 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10342 s.defaults.tab_size = NonZeroU32::new(4);
10343 });
10344
10345 for editor_mode_without_invisibles in [
10346 EditorMode::SingleLine { auto_width: false },
10347 EditorMode::AutoHeight {
10348 min_lines: 1,
10349 max_lines: Some(100),
10350 },
10351 ] {
10352 for show_line_numbers in [true, false] {
10353 let invisibles = collect_invisibles_from_new_editor(
10354 cx,
10355 editor_mode_without_invisibles.clone(),
10356 "\t\t\t| | a b",
10357 px(500.0),
10358 show_line_numbers,
10359 );
10360 assert!(
10361 invisibles.is_empty(),
10362 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
10363 );
10364 }
10365 }
10366 }
10367
10368 #[gpui::test]
10369 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
10370 let tab_size = 4;
10371 let input_text = "a\tbcd ".repeat(9);
10372 let repeated_invisibles = [
10373 Invisible::Tab {
10374 line_start_offset: 1,
10375 line_end_offset: tab_size as usize,
10376 },
10377 Invisible::Whitespace {
10378 line_offset: tab_size as usize + 3,
10379 },
10380 Invisible::Whitespace {
10381 line_offset: tab_size as usize + 4,
10382 },
10383 Invisible::Whitespace {
10384 line_offset: tab_size as usize + 5,
10385 },
10386 Invisible::Whitespace {
10387 line_offset: tab_size as usize + 6,
10388 },
10389 Invisible::Whitespace {
10390 line_offset: tab_size as usize + 7,
10391 },
10392 ];
10393 let expected_invisibles = std::iter::once(repeated_invisibles)
10394 .cycle()
10395 .take(9)
10396 .flatten()
10397 .collect::<Vec<_>>();
10398 assert_eq!(
10399 expected_invisibles.len(),
10400 input_text
10401 .chars()
10402 .filter(|initial_char| initial_char.is_whitespace())
10403 .count(),
10404 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
10405 );
10406 info!("Expected invisibles: {expected_invisibles:?}");
10407
10408 init_test(cx, |_| {});
10409
10410 // Put the same string with repeating whitespace pattern into editors of various size,
10411 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
10412 let resize_step = 10.0;
10413 let mut editor_width = 200.0;
10414 while editor_width <= 1000.0 {
10415 for show_line_numbers in [true, false] {
10416 update_test_language_settings(cx, |s| {
10417 s.defaults.tab_size = NonZeroU32::new(tab_size);
10418 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10419 s.defaults.preferred_line_length = Some(editor_width as u32);
10420 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
10421 });
10422
10423 let actual_invisibles = collect_invisibles_from_new_editor(
10424 cx,
10425 EditorMode::full(),
10426 &input_text,
10427 px(editor_width),
10428 show_line_numbers,
10429 );
10430
10431 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
10432 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
10433 let mut i = 0;
10434 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
10435 i = actual_index;
10436 match expected_invisibles.get(i) {
10437 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
10438 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
10439 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
10440 _ => {
10441 panic!(
10442 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
10443 )
10444 }
10445 },
10446 None => {
10447 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
10448 }
10449 }
10450 }
10451 let missing_expected_invisibles = &expected_invisibles[i + 1..];
10452 assert!(
10453 missing_expected_invisibles.is_empty(),
10454 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
10455 );
10456
10457 editor_width += resize_step;
10458 }
10459 }
10460 }
10461
10462 fn collect_invisibles_from_new_editor(
10463 cx: &mut TestAppContext,
10464 editor_mode: EditorMode,
10465 input_text: &str,
10466 editor_width: Pixels,
10467 show_line_numbers: bool,
10468 ) -> Vec<Invisible> {
10469 info!(
10470 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
10471 editor_width.0
10472 );
10473 let window = cx.add_window(|window, cx| {
10474 let buffer = MultiBuffer::build_simple(input_text, cx);
10475 Editor::new(editor_mode, buffer, None, window, cx)
10476 });
10477 let cx = &mut VisualTestContext::from_window(*window, cx);
10478 let editor = window.root(cx).unwrap();
10479
10480 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10481 window
10482 .update(cx, |editor, _, cx| {
10483 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
10484 editor.set_wrap_width(Some(editor_width), cx);
10485 editor.set_show_line_numbers(show_line_numbers, cx);
10486 })
10487 .unwrap();
10488 let (_, state) = cx.draw(
10489 point(px(500.), px(500.)),
10490 size(px(500.), px(500.)),
10491 |_, _| EditorElement::new(&editor, style),
10492 );
10493 state
10494 .position_map
10495 .line_layouts
10496 .iter()
10497 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
10498 .cloned()
10499 .collect()
10500 }
10501}