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::signature_help_prev);
550 register_action(editor, window, Editor::signature_help_next);
551 register_action(editor, window, Editor::next_edit_prediction);
552 register_action(editor, window, Editor::previous_edit_prediction);
553 register_action(editor, window, Editor::show_inline_completion);
554 register_action(editor, window, Editor::context_menu_first);
555 register_action(editor, window, Editor::context_menu_prev);
556 register_action(editor, window, Editor::context_menu_next);
557 register_action(editor, window, Editor::context_menu_last);
558 register_action(editor, window, Editor::display_cursor_names);
559 register_action(editor, window, Editor::unique_lines_case_insensitive);
560 register_action(editor, window, Editor::unique_lines_case_sensitive);
561 register_action(editor, window, Editor::accept_partial_inline_completion);
562 register_action(editor, window, Editor::accept_edit_prediction);
563 register_action(editor, window, Editor::restore_file);
564 register_action(editor, window, Editor::git_restore);
565 register_action(editor, window, Editor::apply_all_diff_hunks);
566 register_action(editor, window, Editor::apply_selected_diff_hunks);
567 register_action(editor, window, Editor::open_active_item_in_terminal);
568 register_action(editor, window, Editor::reload_file);
569 register_action(editor, window, Editor::spawn_nearest_task);
570 register_action(editor, window, Editor::insert_uuid_v4);
571 register_action(editor, window, Editor::insert_uuid_v7);
572 register_action(editor, window, Editor::open_selections_in_multibuffer);
573 register_action(editor, window, Editor::toggle_breakpoint);
574 register_action(editor, window, Editor::edit_log_breakpoint);
575 register_action(editor, window, Editor::enable_breakpoint);
576 register_action(editor, window, Editor::disable_breakpoint);
577 }
578
579 fn register_key_listeners(&self, window: &mut Window, _: &mut App, layout: &EditorLayout) {
580 let position_map = layout.position_map.clone();
581 window.on_key_event({
582 let editor = self.editor.clone();
583 move |event: &ModifiersChangedEvent, phase, window, cx| {
584 if phase != DispatchPhase::Bubble {
585 return;
586 }
587 editor.update(cx, |editor, cx| {
588 let inlay_hint_settings = inlay_hint_settings(
589 editor.selections.newest_anchor().head(),
590 &editor.buffer.read(cx).snapshot(cx),
591 cx,
592 );
593
594 if let Some(inlay_modifiers) = inlay_hint_settings
595 .toggle_on_modifiers_press
596 .as_ref()
597 .filter(|modifiers| modifiers.modified())
598 {
599 editor.refresh_inlay_hints(
600 InlayHintRefreshReason::ModifiersChanged(
601 inlay_modifiers == &event.modifiers,
602 ),
603 cx,
604 );
605 }
606
607 if editor.hover_state.focused(window, cx) {
608 return;
609 }
610
611 editor.handle_modifiers_changed(event.modifiers, &position_map, window, cx);
612 })
613 }
614 });
615 }
616
617 fn mouse_left_down(
618 editor: &mut Editor,
619 event: &MouseDownEvent,
620 hovered_hunk: Option<Range<Anchor>>,
621 position_map: &PositionMap,
622 line_numbers: &HashMap<MultiBufferRow, LineNumberLayout>,
623 window: &mut Window,
624 cx: &mut Context<Editor>,
625 ) {
626 if window.default_prevented() {
627 return;
628 }
629
630 let text_hitbox = &position_map.text_hitbox;
631 let gutter_hitbox = &position_map.gutter_hitbox;
632 let point_for_position = position_map.point_for_position(event.position);
633 let mut click_count = event.click_count;
634 let mut modifiers = event.modifiers;
635
636 if let Some(hovered_hunk) = hovered_hunk {
637 editor.toggle_single_diff_hunk(hovered_hunk, cx);
638 cx.notify();
639 return;
640 } else if gutter_hitbox.is_hovered(window) {
641 click_count = 3; // Simulate triple-click when clicking the gutter to select lines
642 } else if !text_hitbox.is_hovered(window) {
643 return;
644 }
645
646 if editor.drag_and_drop_selection_enabled && click_count == 1 {
647 let newest_anchor = editor.selections.newest_anchor();
648 let snapshot = editor.snapshot(window, cx);
649 let selection = newest_anchor.map(|anchor| anchor.to_display_point(&snapshot));
650 if point_for_position.intersects_selection(&selection) {
651 editor.selection_drag_state = SelectionDragState::ReadyToDrag {
652 selection: newest_anchor.clone(),
653 click_position: event.position,
654 mouse_down_time: Instant::now(),
655 };
656 cx.stop_propagation();
657 return;
658 }
659 }
660
661 let is_singleton = editor.buffer().read(cx).is_singleton();
662
663 if click_count == 2 && !is_singleton {
664 match EditorSettings::get_global(cx).double_click_in_multibuffer {
665 DoubleClickInMultibuffer::Select => {
666 // do nothing special on double click, all selection logic is below
667 }
668 DoubleClickInMultibuffer::Open => {
669 if modifiers.alt {
670 // if double click is made with alt, pretend it's a regular double click without opening and alt,
671 // and run the selection logic.
672 modifiers.alt = false;
673 } else {
674 let scroll_position_row =
675 position_map.scroll_pixel_position.y / position_map.line_height;
676 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
677 + position_map.scroll_pixel_position.y)
678 / position_map.line_height)
679 as u32;
680 let multi_buffer_row = position_map
681 .snapshot
682 .display_point_to_point(
683 DisplayPoint::new(DisplayRow(display_row), 0),
684 Bias::Right,
685 )
686 .row;
687 let line_offset_from_top = display_row - scroll_position_row as u32;
688 // if double click is made without alt, open the corresponding excerp
689 editor.open_excerpts_common(
690 Some(JumpData::MultiBufferRow {
691 row: MultiBufferRow(multi_buffer_row),
692 line_offset_from_top,
693 }),
694 false,
695 window,
696 cx,
697 );
698 return;
699 }
700 }
701 }
702 }
703
704 let position = point_for_position.previous_valid;
705 if let Some(mode) = Editor::columnar_selection_mode(&modifiers, cx) {
706 editor.select(
707 SelectPhase::BeginColumnar {
708 position,
709 reset: match mode {
710 ColumnarMode::FromMouse => true,
711 ColumnarMode::FromSelection => false,
712 },
713 mode: mode,
714 goal_column: point_for_position.exact_unclipped.column(),
715 },
716 window,
717 cx,
718 );
719 } else if modifiers.shift && !modifiers.control && !modifiers.alt && !modifiers.secondary()
720 {
721 editor.select(
722 SelectPhase::Extend {
723 position,
724 click_count,
725 },
726 window,
727 cx,
728 );
729 } else {
730 editor.select(
731 SelectPhase::Begin {
732 position,
733 add: Editor::multi_cursor_modifier(true, &modifiers, cx),
734 click_count,
735 },
736 window,
737 cx,
738 );
739 }
740 cx.stop_propagation();
741
742 if !is_singleton {
743 let display_row = (((event.position - gutter_hitbox.bounds.origin).y
744 + position_map.scroll_pixel_position.y)
745 / position_map.line_height) as u32;
746 let multi_buffer_row = position_map
747 .snapshot
748 .display_point_to_point(DisplayPoint::new(DisplayRow(display_row), 0), Bias::Right)
749 .row;
750 if line_numbers
751 .get(&MultiBufferRow(multi_buffer_row))
752 .and_then(|line_number| line_number.hitbox.as_ref())
753 .is_some_and(|hitbox| hitbox.contains(&event.position))
754 {
755 let scroll_position_row =
756 position_map.scroll_pixel_position.y / position_map.line_height;
757 let line_offset_from_top = display_row - scroll_position_row as u32;
758
759 editor.open_excerpts_common(
760 Some(JumpData::MultiBufferRow {
761 row: MultiBufferRow(multi_buffer_row),
762 line_offset_from_top,
763 }),
764 modifiers.alt,
765 window,
766 cx,
767 );
768 cx.stop_propagation();
769 }
770 }
771 }
772
773 fn mouse_right_down(
774 editor: &mut Editor,
775 event: &MouseDownEvent,
776 position_map: &PositionMap,
777 window: &mut Window,
778 cx: &mut Context<Editor>,
779 ) {
780 if position_map.gutter_hitbox.is_hovered(window) {
781 let gutter_right_padding = editor.gutter_dimensions.right_padding;
782 let hitbox = &position_map.gutter_hitbox;
783
784 if event.position.x <= hitbox.bounds.right() - gutter_right_padding {
785 let point_for_position = position_map.point_for_position(event.position);
786 editor.set_breakpoint_context_menu(
787 point_for_position.previous_valid.row(),
788 None,
789 event.position,
790 window,
791 cx,
792 );
793 }
794 return;
795 }
796
797 if !position_map.text_hitbox.is_hovered(window) {
798 return;
799 }
800
801 let point_for_position = position_map.point_for_position(event.position);
802 mouse_context_menu::deploy_context_menu(
803 editor,
804 Some(event.position),
805 point_for_position.previous_valid,
806 window,
807 cx,
808 );
809 cx.stop_propagation();
810 }
811
812 fn mouse_middle_down(
813 editor: &mut Editor,
814 event: &MouseDownEvent,
815 position_map: &PositionMap,
816 window: &mut Window,
817 cx: &mut Context<Editor>,
818 ) {
819 if !position_map.text_hitbox.is_hovered(window) || window.default_prevented() {
820 return;
821 }
822
823 let point_for_position = position_map.point_for_position(event.position);
824 let position = point_for_position.previous_valid;
825
826 editor.select(
827 SelectPhase::BeginColumnar {
828 position,
829 reset: true,
830 mode: ColumnarMode::FromMouse,
831 goal_column: point_for_position.exact_unclipped.column(),
832 },
833 window,
834 cx,
835 );
836 }
837
838 fn mouse_up(
839 editor: &mut Editor,
840 event: &MouseUpEvent,
841 position_map: &PositionMap,
842 window: &mut Window,
843 cx: &mut Context<Editor>,
844 ) {
845 let text_hitbox = &position_map.text_hitbox;
846 let end_selection = editor.has_pending_selection();
847 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
848 let point_for_position = position_map.point_for_position(event.position);
849
850 match editor.selection_drag_state {
851 SelectionDragState::ReadyToDrag {
852 selection: _,
853 ref click_position,
854 mouse_down_time: _,
855 } => {
856 if event.position == *click_position {
857 editor.select(
858 SelectPhase::Begin {
859 position: point_for_position.previous_valid,
860 add: false,
861 click_count: 1, // ready to drag state only occurs on click count 1
862 },
863 window,
864 cx,
865 );
866 editor.selection_drag_state = SelectionDragState::None;
867 cx.stop_propagation();
868 return;
869 } else {
870 debug_panic!("drag state can never be in ready state after drag")
871 }
872 }
873 SelectionDragState::Dragging { ref selection, .. } => {
874 let snapshot = editor.snapshot(window, cx);
875 let selection_display = selection.map(|anchor| anchor.to_display_point(&snapshot));
876 if !point_for_position.intersects_selection(&selection_display)
877 && text_hitbox.is_hovered(window)
878 {
879 let is_cut = !(cfg!(target_os = "macos") && event.modifiers.alt
880 || cfg!(not(target_os = "macos")) && event.modifiers.control);
881 editor.move_selection_on_drop(
882 &selection.clone(),
883 point_for_position.previous_valid,
884 is_cut,
885 window,
886 cx,
887 );
888 }
889 editor.selection_drag_state = SelectionDragState::None;
890 cx.stop_propagation();
891 cx.notify();
892 return;
893 }
894 _ => {}
895 }
896
897 if end_selection {
898 editor.select(SelectPhase::End, window, cx);
899 }
900
901 if end_selection && pending_nonempty_selections {
902 cx.stop_propagation();
903 } else if cfg!(any(target_os = "linux", target_os = "freebsd"))
904 && event.button == MouseButton::Middle
905 {
906 if !text_hitbox.is_hovered(window) || editor.read_only(cx) {
907 return;
908 }
909
910 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
911 if EditorSettings::get_global(cx).middle_click_paste {
912 if let Some(text) = cx.read_from_primary().and_then(|item| item.text()) {
913 let point_for_position = position_map.point_for_position(event.position);
914 let position = point_for_position.previous_valid;
915
916 editor.select(
917 SelectPhase::Begin {
918 position,
919 add: false,
920 click_count: 1,
921 },
922 window,
923 cx,
924 );
925 editor.insert(&text, window, cx);
926 }
927 cx.stop_propagation()
928 }
929 }
930 }
931
932 fn click(
933 editor: &mut Editor,
934 event: &ClickEvent,
935 position_map: &PositionMap,
936 window: &mut Window,
937 cx: &mut Context<Editor>,
938 ) {
939 let text_hitbox = &position_map.text_hitbox;
940 let pending_nonempty_selections = editor.has_pending_nonempty_selection();
941
942 let hovered_link_modifier = Editor::multi_cursor_modifier(false, &event.modifiers(), cx);
943
944 if !pending_nonempty_selections && hovered_link_modifier && text_hitbox.is_hovered(window) {
945 let point = position_map.point_for_position(event.up.position);
946 editor.handle_click_hovered_link(point, event.modifiers(), window, cx);
947
948 cx.stop_propagation();
949 }
950 }
951
952 fn mouse_dragged(
953 editor: &mut Editor,
954 event: &MouseMoveEvent,
955 position_map: &PositionMap,
956 window: &mut Window,
957 cx: &mut Context<Editor>,
958 ) {
959 if !editor.has_pending_selection()
960 && matches!(editor.selection_drag_state, SelectionDragState::None)
961 {
962 return;
963 }
964
965 let point_for_position = position_map.point_for_position(event.position);
966 let text_hitbox = &position_map.text_hitbox;
967
968 let scroll_delta = {
969 let text_bounds = text_hitbox.bounds;
970 let mut scroll_delta = gpui::Point::<f32>::default();
971 let vertical_margin = position_map.line_height.min(text_bounds.size.height / 3.0);
972 let top = text_bounds.origin.y + vertical_margin;
973 let bottom = text_bounds.bottom_left().y - vertical_margin;
974 if event.position.y < top {
975 scroll_delta.y = -scale_vertical_mouse_autoscroll_delta(top - event.position.y);
976 }
977 if event.position.y > bottom {
978 scroll_delta.y = scale_vertical_mouse_autoscroll_delta(event.position.y - bottom);
979 }
980
981 // We need horizontal width of text
982 let style = editor.style.clone().unwrap_or_default();
983 let font_id = window.text_system().resolve_font(&style.text.font());
984 let font_size = style.text.font_size.to_pixels(window.rem_size());
985 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
986
987 let scroll_margin_x = EditorSettings::get_global(cx).horizontal_scroll_margin;
988
989 let scroll_space: Pixels = scroll_margin_x * em_width;
990
991 let left = text_bounds.origin.x + scroll_space;
992 let right = text_bounds.top_right().x - scroll_space;
993
994 if event.position.x < left {
995 scroll_delta.x = -scale_horizontal_mouse_autoscroll_delta(left - event.position.x);
996 }
997 if event.position.x > right {
998 scroll_delta.x = scale_horizontal_mouse_autoscroll_delta(event.position.x - right);
999 }
1000 scroll_delta
1001 };
1002
1003 if !editor.has_pending_selection() {
1004 let drop_anchor = position_map
1005 .snapshot
1006 .display_point_to_anchor(point_for_position.previous_valid, Bias::Left);
1007 match editor.selection_drag_state {
1008 SelectionDragState::Dragging {
1009 ref mut drop_cursor,
1010 ref mut hide_drop_cursor,
1011 ..
1012 } => {
1013 drop_cursor.start = drop_anchor;
1014 drop_cursor.end = drop_anchor;
1015 *hide_drop_cursor = !text_hitbox.is_hovered(window);
1016 editor.apply_scroll_delta(scroll_delta, window, cx);
1017 cx.notify();
1018 }
1019 SelectionDragState::ReadyToDrag {
1020 ref selection,
1021 ref click_position,
1022 ref mouse_down_time,
1023 } => {
1024 if mouse_down_time.elapsed() >= SELECTION_DRAG_DELAY {
1025 let drop_cursor = Selection {
1026 id: post_inc(&mut editor.selections.next_selection_id),
1027 start: drop_anchor,
1028 end: drop_anchor,
1029 reversed: false,
1030 goal: SelectionGoal::None,
1031 };
1032 editor.selection_drag_state = SelectionDragState::Dragging {
1033 selection: selection.clone(),
1034 drop_cursor,
1035 hide_drop_cursor: false,
1036 };
1037 editor.apply_scroll_delta(scroll_delta, window, cx);
1038 cx.notify();
1039 } else {
1040 let click_point = position_map.point_for_position(*click_position);
1041 editor.selection_drag_state = SelectionDragState::None;
1042 editor.select(
1043 SelectPhase::Begin {
1044 position: click_point.previous_valid,
1045 add: false,
1046 click_count: 1,
1047 },
1048 window,
1049 cx,
1050 );
1051 editor.select(
1052 SelectPhase::Update {
1053 position: point_for_position.previous_valid,
1054 goal_column: point_for_position.exact_unclipped.column(),
1055 scroll_delta,
1056 },
1057 window,
1058 cx,
1059 );
1060 }
1061 }
1062 _ => {}
1063 }
1064 } else {
1065 editor.select(
1066 SelectPhase::Update {
1067 position: point_for_position.previous_valid,
1068 goal_column: point_for_position.exact_unclipped.column(),
1069 scroll_delta,
1070 },
1071 window,
1072 cx,
1073 );
1074 }
1075 }
1076
1077 fn mouse_moved(
1078 editor: &mut Editor,
1079 event: &MouseMoveEvent,
1080 position_map: &PositionMap,
1081 window: &mut Window,
1082 cx: &mut Context<Editor>,
1083 ) {
1084 let text_hitbox = &position_map.text_hitbox;
1085 let gutter_hitbox = &position_map.gutter_hitbox;
1086 let modifiers = event.modifiers;
1087 let text_hovered = text_hitbox.is_hovered(window);
1088 let gutter_hovered = gutter_hitbox.is_hovered(window);
1089 editor.set_gutter_hovered(gutter_hovered, cx);
1090 editor.show_mouse_cursor(cx);
1091
1092 let point_for_position = position_map.point_for_position(event.position);
1093 let valid_point = point_for_position.previous_valid;
1094
1095 let hovered_diff_control = position_map
1096 .diff_hunk_control_bounds
1097 .iter()
1098 .find(|(_, bounds)| bounds.contains(&event.position))
1099 .map(|(row, _)| *row);
1100
1101 let hovered_diff_hunk_row = if let Some(control_row) = hovered_diff_control {
1102 Some(control_row)
1103 } else {
1104 if text_hovered {
1105 let current_row = valid_point.row();
1106 position_map.display_hunks.iter().find_map(|(hunk, _)| {
1107 if let DisplayDiffHunk::Unfolded {
1108 display_row_range, ..
1109 } = hunk
1110 {
1111 if display_row_range.contains(¤t_row) {
1112 Some(display_row_range.start)
1113 } else {
1114 None
1115 }
1116 } else {
1117 None
1118 }
1119 })
1120 } else {
1121 None
1122 }
1123 };
1124
1125 if hovered_diff_hunk_row != editor.hovered_diff_hunk_row {
1126 editor.hovered_diff_hunk_row = hovered_diff_hunk_row;
1127 cx.notify();
1128 }
1129
1130 if let Some((bounds, blame_entry)) = &position_map.inline_blame_bounds {
1131 let mouse_over_inline_blame = bounds.contains(&event.position);
1132 let mouse_over_popover = editor
1133 .inline_blame_popover
1134 .as_ref()
1135 .and_then(|state| state.popover_bounds)
1136 .map_or(false, |bounds| bounds.contains(&event.position));
1137
1138 if mouse_over_inline_blame || mouse_over_popover {
1139 editor.show_blame_popover(&blame_entry, event.position, cx);
1140 } else {
1141 editor.hide_blame_popover(cx);
1142 }
1143 } else {
1144 editor.hide_blame_popover(cx);
1145 }
1146
1147 let breakpoint_indicator = if gutter_hovered {
1148 let buffer_anchor = position_map
1149 .snapshot
1150 .display_point_to_anchor(valid_point, Bias::Left);
1151
1152 if let Some((buffer_snapshot, file)) = position_map
1153 .snapshot
1154 .buffer_snapshot
1155 .buffer_for_excerpt(buffer_anchor.excerpt_id)
1156 .and_then(|buffer| buffer.file().map(|file| (buffer, file)))
1157 {
1158 let as_point = text::ToPoint::to_point(&buffer_anchor.text_anchor, buffer_snapshot);
1159
1160 let is_visible = editor
1161 .gutter_breakpoint_indicator
1162 .0
1163 .map_or(false, |indicator| indicator.is_active);
1164
1165 let has_existing_breakpoint =
1166 editor.breakpoint_store.as_ref().map_or(false, |store| {
1167 let Some(project) = &editor.project else {
1168 return false;
1169 };
1170 let Some(abs_path) = project.read(cx).absolute_path(
1171 &ProjectPath {
1172 path: file.path().clone(),
1173 worktree_id: file.worktree_id(cx),
1174 },
1175 cx,
1176 ) else {
1177 return false;
1178 };
1179 store
1180 .read(cx)
1181 .breakpoint_at_row(&abs_path, as_point.row, cx)
1182 .is_some()
1183 });
1184
1185 if !is_visible {
1186 editor.gutter_breakpoint_indicator.1.get_or_insert_with(|| {
1187 cx.spawn(async move |this, cx| {
1188 cx.background_executor()
1189 .timer(Duration::from_millis(200))
1190 .await;
1191
1192 this.update(cx, |this, cx| {
1193 if let Some(indicator) = this.gutter_breakpoint_indicator.0.as_mut()
1194 {
1195 indicator.is_active = true;
1196 cx.notify();
1197 }
1198 })
1199 .ok();
1200 })
1201 });
1202 }
1203
1204 Some(PhantomBreakpointIndicator {
1205 display_row: valid_point.row(),
1206 is_active: is_visible,
1207 collides_with_existing_breakpoint: has_existing_breakpoint,
1208 })
1209 } else {
1210 editor.gutter_breakpoint_indicator.1 = None;
1211 None
1212 }
1213 } else {
1214 editor.gutter_breakpoint_indicator.1 = None;
1215 None
1216 };
1217
1218 if &breakpoint_indicator != &editor.gutter_breakpoint_indicator.0 {
1219 editor.gutter_breakpoint_indicator.0 = breakpoint_indicator;
1220 cx.notify();
1221 }
1222
1223 // Don't trigger hover popover if mouse is hovering over context menu
1224 if text_hovered {
1225 editor.update_hovered_link(
1226 point_for_position,
1227 &position_map.snapshot,
1228 modifiers,
1229 window,
1230 cx,
1231 );
1232
1233 if let Some(point) = point_for_position.as_valid() {
1234 let anchor = position_map
1235 .snapshot
1236 .buffer_snapshot
1237 .anchor_before(point.to_offset(&position_map.snapshot, Bias::Left));
1238 hover_at(editor, Some(anchor), window, cx);
1239 Self::update_visible_cursor(editor, point, position_map, window, cx);
1240 } else {
1241 // Don't call hover_at with None when we're over an inlay
1242 // The inlay hover is already handled by update_hovered_link
1243 }
1244 } else {
1245 editor.hide_hovered_link(cx);
1246 hover_at(editor, None, window, cx);
1247 }
1248 }
1249
1250 fn update_visible_cursor(
1251 editor: &mut Editor,
1252 point: DisplayPoint,
1253 position_map: &PositionMap,
1254 window: &mut Window,
1255 cx: &mut Context<Editor>,
1256 ) {
1257 let snapshot = &position_map.snapshot;
1258 let Some(hub) = editor.collaboration_hub() else {
1259 return;
1260 };
1261 let start = snapshot.display_snapshot.clip_point(
1262 DisplayPoint::new(point.row(), point.column().saturating_sub(1)),
1263 Bias::Left,
1264 );
1265 let end = snapshot.display_snapshot.clip_point(
1266 DisplayPoint::new(
1267 point.row(),
1268 (point.column() + 1).min(snapshot.line_len(point.row())),
1269 ),
1270 Bias::Right,
1271 );
1272
1273 let range = snapshot
1274 .buffer_snapshot
1275 .anchor_at(start.to_point(&snapshot.display_snapshot), Bias::Left)
1276 ..snapshot
1277 .buffer_snapshot
1278 .anchor_at(end.to_point(&snapshot.display_snapshot), Bias::Right);
1279
1280 let Some(selection) = snapshot.remote_selections_in_range(&range, hub, cx).next() else {
1281 return;
1282 };
1283 let key = crate::HoveredCursor {
1284 replica_id: selection.replica_id,
1285 selection_id: selection.selection.id,
1286 };
1287 editor.hovered_cursors.insert(
1288 key.clone(),
1289 cx.spawn_in(window, async move |editor, cx| {
1290 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
1291 editor
1292 .update(cx, |editor, cx| {
1293 editor.hovered_cursors.remove(&key);
1294 cx.notify();
1295 })
1296 .ok();
1297 }),
1298 );
1299 cx.notify()
1300 }
1301
1302 fn layout_selections(
1303 &self,
1304 start_anchor: Anchor,
1305 end_anchor: Anchor,
1306 local_selections: &[Selection<Point>],
1307 snapshot: &EditorSnapshot,
1308 start_row: DisplayRow,
1309 end_row: DisplayRow,
1310 window: &mut Window,
1311 cx: &mut App,
1312 ) -> (
1313 Vec<(PlayerColor, Vec<SelectionLayout>)>,
1314 BTreeMap<DisplayRow, LineHighlightSpec>,
1315 Option<DisplayPoint>,
1316 ) {
1317 let mut selections: Vec<(PlayerColor, Vec<SelectionLayout>)> = Vec::new();
1318 let mut active_rows = BTreeMap::new();
1319 let mut newest_selection_head = None;
1320
1321 let Some(editor_with_selections) = self.editor_with_selections(cx) else {
1322 return (selections, active_rows, newest_selection_head);
1323 };
1324
1325 editor_with_selections.update(cx, |editor, cx| {
1326 if editor.show_local_selections {
1327 let mut layouts = Vec::new();
1328 let newest = editor.selections.newest(cx);
1329 for selection in local_selections.iter().cloned() {
1330 let is_empty = selection.start == selection.end;
1331 let is_newest = selection == newest;
1332
1333 let layout = SelectionLayout::new(
1334 selection,
1335 editor.selections.line_mode,
1336 editor.cursor_shape,
1337 &snapshot.display_snapshot,
1338 is_newest,
1339 editor.leader_id.is_none(),
1340 None,
1341 );
1342 if is_newest {
1343 newest_selection_head = Some(layout.head);
1344 }
1345
1346 for row in cmp::max(layout.active_rows.start.0, start_row.0)
1347 ..=cmp::min(layout.active_rows.end.0, end_row.0)
1348 {
1349 let contains_non_empty_selection = active_rows
1350 .entry(DisplayRow(row))
1351 .or_insert_with(LineHighlightSpec::default);
1352 contains_non_empty_selection.selection |= !is_empty;
1353 }
1354 layouts.push(layout);
1355 }
1356
1357 let player = editor.current_user_player_color(cx);
1358 selections.push((player, layouts));
1359
1360 if let SelectionDragState::Dragging {
1361 ref selection,
1362 ref drop_cursor,
1363 ref hide_drop_cursor,
1364 } = editor.selection_drag_state
1365 {
1366 if !hide_drop_cursor
1367 && (drop_cursor
1368 .start
1369 .cmp(&selection.start, &snapshot.buffer_snapshot)
1370 .eq(&Ordering::Less)
1371 || drop_cursor
1372 .end
1373 .cmp(&selection.end, &snapshot.buffer_snapshot)
1374 .eq(&Ordering::Greater))
1375 {
1376 let drag_cursor_layout = SelectionLayout::new(
1377 drop_cursor.clone(),
1378 false,
1379 CursorShape::Bar,
1380 &snapshot.display_snapshot,
1381 false,
1382 false,
1383 None,
1384 );
1385 let absent_color = cx.theme().players().absent();
1386 selections.push((absent_color, vec![drag_cursor_layout]));
1387 }
1388 }
1389 }
1390
1391 if let Some(collaboration_hub) = &editor.collaboration_hub {
1392 // When following someone, render the local selections in their color.
1393 if let Some(leader_id) = editor.leader_id {
1394 match leader_id {
1395 CollaboratorId::PeerId(peer_id) => {
1396 if let Some(collaborator) =
1397 collaboration_hub.collaborators(cx).get(&peer_id)
1398 {
1399 if let Some(participant_index) = collaboration_hub
1400 .user_participant_indices(cx)
1401 .get(&collaborator.user_id)
1402 {
1403 if let Some((local_selection_style, _)) = selections.first_mut()
1404 {
1405 *local_selection_style = cx
1406 .theme()
1407 .players()
1408 .color_for_participant(participant_index.0);
1409 }
1410 }
1411 }
1412 }
1413 CollaboratorId::Agent => {
1414 if let Some((local_selection_style, _)) = selections.first_mut() {
1415 *local_selection_style = cx.theme().players().agent();
1416 }
1417 }
1418 }
1419 }
1420
1421 let mut remote_selections = HashMap::default();
1422 for selection in snapshot.remote_selections_in_range(
1423 &(start_anchor..end_anchor),
1424 collaboration_hub.as_ref(),
1425 cx,
1426 ) {
1427 // Don't re-render the leader's selections, since the local selections
1428 // match theirs.
1429 if Some(selection.collaborator_id) == editor.leader_id {
1430 continue;
1431 }
1432 let key = HoveredCursor {
1433 replica_id: selection.replica_id,
1434 selection_id: selection.selection.id,
1435 };
1436
1437 let is_shown =
1438 editor.show_cursor_names || editor.hovered_cursors.contains_key(&key);
1439
1440 remote_selections
1441 .entry(selection.replica_id)
1442 .or_insert((selection.color, Vec::new()))
1443 .1
1444 .push(SelectionLayout::new(
1445 selection.selection,
1446 selection.line_mode,
1447 selection.cursor_shape,
1448 &snapshot.display_snapshot,
1449 false,
1450 false,
1451 if is_shown { selection.user_name } else { None },
1452 ));
1453 }
1454
1455 selections.extend(remote_selections.into_values());
1456 } else if !editor.is_focused(window) && editor.show_cursor_when_unfocused {
1457 let layouts = snapshot
1458 .buffer_snapshot
1459 .selections_in_range(&(start_anchor..end_anchor), true)
1460 .map(move |(_, line_mode, cursor_shape, selection)| {
1461 SelectionLayout::new(
1462 selection,
1463 line_mode,
1464 cursor_shape,
1465 &snapshot.display_snapshot,
1466 false,
1467 false,
1468 None,
1469 )
1470 })
1471 .collect::<Vec<_>>();
1472 let player = editor.current_user_player_color(cx);
1473 selections.push((player, layouts));
1474 }
1475 });
1476 (selections, active_rows, newest_selection_head)
1477 }
1478
1479 fn collect_cursors(
1480 &self,
1481 snapshot: &EditorSnapshot,
1482 cx: &mut App,
1483 ) -> Vec<(DisplayPoint, Hsla)> {
1484 let editor = self.editor.read(cx);
1485 let mut cursors = Vec::new();
1486 let mut skip_local = false;
1487 let mut add_cursor = |anchor: Anchor, color| {
1488 cursors.push((anchor.to_display_point(&snapshot.display_snapshot), color));
1489 };
1490 // Remote cursors
1491 if let Some(collaboration_hub) = &editor.collaboration_hub {
1492 for remote_selection in snapshot.remote_selections_in_range(
1493 &(Anchor::min()..Anchor::max()),
1494 collaboration_hub.deref(),
1495 cx,
1496 ) {
1497 add_cursor(
1498 remote_selection.selection.head(),
1499 remote_selection.color.cursor,
1500 );
1501 if Some(remote_selection.collaborator_id) == editor.leader_id {
1502 skip_local = true;
1503 }
1504 }
1505 }
1506 // Local cursors
1507 if !skip_local {
1508 let color = cx.theme().players().local().cursor;
1509 editor.selections.disjoint.iter().for_each(|selection| {
1510 add_cursor(selection.head(), color);
1511 });
1512 if let Some(ref selection) = editor.selections.pending_anchor() {
1513 add_cursor(selection.head(), color);
1514 }
1515 }
1516 cursors
1517 }
1518
1519 fn layout_visible_cursors(
1520 &self,
1521 snapshot: &EditorSnapshot,
1522 selections: &[(PlayerColor, Vec<SelectionLayout>)],
1523 row_block_types: &HashMap<DisplayRow, bool>,
1524 visible_display_row_range: Range<DisplayRow>,
1525 line_layouts: &[LineWithInvisibles],
1526 text_hitbox: &Hitbox,
1527 content_origin: gpui::Point<Pixels>,
1528 scroll_position: gpui::Point<f32>,
1529 scroll_pixel_position: gpui::Point<Pixels>,
1530 line_height: Pixels,
1531 em_width: Pixels,
1532 em_advance: Pixels,
1533 autoscroll_containing_element: bool,
1534 window: &mut Window,
1535 cx: &mut App,
1536 ) -> Vec<CursorLayout> {
1537 let mut autoscroll_bounds = None;
1538 let cursor_layouts = self.editor.update(cx, |editor, cx| {
1539 let mut cursors = Vec::new();
1540
1541 let show_local_cursors = editor.show_local_cursors(window, cx);
1542
1543 for (player_color, selections) in selections {
1544 for selection in selections {
1545 let cursor_position = selection.head;
1546
1547 let in_range = visible_display_row_range.contains(&cursor_position.row());
1548 if (selection.is_local && !show_local_cursors)
1549 || !in_range
1550 || row_block_types.get(&cursor_position.row()) == Some(&true)
1551 {
1552 continue;
1553 }
1554
1555 let cursor_row_layout = &line_layouts
1556 [cursor_position.row().minus(visible_display_row_range.start) as usize];
1557 let cursor_column = cursor_position.column() as usize;
1558
1559 let cursor_character_x = cursor_row_layout.x_for_index(cursor_column);
1560 let mut block_width =
1561 cursor_row_layout.x_for_index(cursor_column + 1) - cursor_character_x;
1562 if block_width == Pixels::ZERO {
1563 block_width = em_advance;
1564 }
1565 let block_text = if let CursorShape::Block = selection.cursor_shape {
1566 snapshot
1567 .grapheme_at(cursor_position)
1568 .or_else(|| {
1569 if snapshot.is_empty() {
1570 snapshot.placeholder_text().and_then(|s| {
1571 s.graphemes(true).next().map(|s| s.to_string().into())
1572 })
1573 } else {
1574 None
1575 }
1576 })
1577 .map(|text| {
1578 let len = text.len();
1579
1580 let font = cursor_row_layout
1581 .font_id_for_index(cursor_column)
1582 .and_then(|cursor_font_id| {
1583 window.text_system().get_font_for_id(cursor_font_id)
1584 })
1585 .unwrap_or(self.style.text.font());
1586
1587 // Invert the text color for the block cursor. Ensure that the text
1588 // color is opaque enough to be visible against the background color.
1589 //
1590 // 0.75 is an arbitrary threshold to determine if the background color is
1591 // opaque enough to use as a text color.
1592 //
1593 // TODO: In the future we should ensure themes have a `text_inverse` color.
1594 let color = if cx.theme().colors().editor_background.a < 0.75 {
1595 match cx.theme().appearance {
1596 Appearance::Dark => Hsla::black(),
1597 Appearance::Light => Hsla::white(),
1598 }
1599 } else {
1600 cx.theme().colors().editor_background
1601 };
1602
1603 window.text_system().shape_line(
1604 text,
1605 cursor_row_layout.font_size,
1606 &[TextRun {
1607 len,
1608 font,
1609 color,
1610 background_color: None,
1611 strikethrough: None,
1612 underline: None,
1613 }],
1614 )
1615 })
1616 } else {
1617 None
1618 };
1619
1620 let x = cursor_character_x - scroll_pixel_position.x;
1621 let y = (cursor_position.row().as_f32()
1622 - scroll_pixel_position.y / line_height)
1623 * line_height;
1624 if selection.is_newest {
1625 editor.pixel_position_of_newest_cursor = Some(point(
1626 text_hitbox.origin.x + x + block_width / 2.,
1627 text_hitbox.origin.y + y + line_height / 2.,
1628 ));
1629
1630 if autoscroll_containing_element {
1631 let top = text_hitbox.origin.y
1632 + (cursor_position.row().as_f32() - scroll_position.y - 3.).max(0.)
1633 * line_height;
1634 let left = text_hitbox.origin.x
1635 + (cursor_position.column() as f32 - scroll_position.x - 3.)
1636 .max(0.)
1637 * em_width;
1638
1639 let bottom = text_hitbox.origin.y
1640 + (cursor_position.row().as_f32() - scroll_position.y + 4.)
1641 * line_height;
1642 let right = text_hitbox.origin.x
1643 + (cursor_position.column() as f32 - scroll_position.x + 4.)
1644 * em_width;
1645
1646 autoscroll_bounds =
1647 Some(Bounds::from_corners(point(left, top), point(right, bottom)))
1648 }
1649 }
1650
1651 let mut cursor = CursorLayout {
1652 color: player_color.cursor,
1653 block_width,
1654 origin: point(x, y),
1655 line_height,
1656 shape: selection.cursor_shape,
1657 block_text,
1658 cursor_name: None,
1659 };
1660 let cursor_name = selection.user_name.clone().map(|name| CursorName {
1661 string: name,
1662 color: self.style.background,
1663 is_top_row: cursor_position.row().0 == 0,
1664 });
1665 cursor.layout(content_origin, cursor_name, window, cx);
1666 cursors.push(cursor);
1667 }
1668 }
1669
1670 cursors
1671 });
1672
1673 if let Some(bounds) = autoscroll_bounds {
1674 window.request_autoscroll(bounds);
1675 }
1676
1677 cursor_layouts
1678 }
1679
1680 fn layout_scrollbars(
1681 &self,
1682 snapshot: &EditorSnapshot,
1683 scrollbar_layout_information: &ScrollbarLayoutInformation,
1684 content_offset: gpui::Point<Pixels>,
1685 scroll_position: gpui::Point<f32>,
1686 non_visible_cursors: bool,
1687 right_margin: Pixels,
1688 editor_width: Pixels,
1689 window: &mut Window,
1690 cx: &mut App,
1691 ) -> Option<EditorScrollbars> {
1692 let show_scrollbars = self.editor.read(cx).show_scrollbars;
1693 if (!show_scrollbars.horizontal && !show_scrollbars.vertical)
1694 || self.style.scrollbar_width.is_zero()
1695 {
1696 return None;
1697 }
1698
1699 // If a drag took place after we started dragging the scrollbar,
1700 // cancel the scrollbar drag.
1701 if cx.has_active_drag() {
1702 self.editor.update(cx, |editor, cx| {
1703 editor.scroll_manager.reset_scrollbar_state(cx)
1704 });
1705 }
1706
1707 let editor_settings = EditorSettings::get_global(cx);
1708 let scrollbar_settings = editor_settings.scrollbar;
1709 let show_scrollbars = match scrollbar_settings.show {
1710 ShowScrollbar::Auto => {
1711 let editor = self.editor.read(cx);
1712 let is_singleton = editor.is_singleton(cx);
1713 // Git
1714 (is_singleton && scrollbar_settings.git_diff && snapshot.buffer_snapshot.has_diff_hunks())
1715 ||
1716 // Buffer Search Results
1717 (is_singleton && scrollbar_settings.search_results && editor.has_background_highlights::<BufferSearchHighlights>())
1718 ||
1719 // Selected Text Occurrences
1720 (is_singleton && scrollbar_settings.selected_text && editor.has_background_highlights::<SelectedTextHighlight>())
1721 ||
1722 // Selected Symbol Occurrences
1723 (is_singleton && scrollbar_settings.selected_symbol && (editor.has_background_highlights::<DocumentHighlightRead>() || editor.has_background_highlights::<DocumentHighlightWrite>()))
1724 ||
1725 // Diagnostics
1726 (is_singleton && scrollbar_settings.diagnostics != ScrollbarDiagnostics::None && snapshot.buffer_snapshot.has_diagnostics())
1727 ||
1728 // Cursors out of sight
1729 non_visible_cursors
1730 ||
1731 // Scrollmanager
1732 editor.scroll_manager.scrollbars_visible()
1733 }
1734 ShowScrollbar::System => self.editor.read(cx).scroll_manager.scrollbars_visible(),
1735 ShowScrollbar::Always => true,
1736 ShowScrollbar::Never => return None,
1737 };
1738
1739 // The horizontal scrollbar is usually slightly offset to align nicely with
1740 // indent guides. However, this offset is not needed if indent guides are
1741 // disabled for the current editor.
1742 let content_offset = self
1743 .editor
1744 .read(cx)
1745 .show_indent_guides
1746 .is_none_or(|should_show| should_show)
1747 .then_some(content_offset)
1748 .unwrap_or_default();
1749
1750 Some(EditorScrollbars::from_scrollbar_axes(
1751 ScrollbarAxes {
1752 horizontal: scrollbar_settings.axes.horizontal
1753 && self.editor.read(cx).show_scrollbars.horizontal,
1754 vertical: scrollbar_settings.axes.vertical
1755 && self.editor.read(cx).show_scrollbars.vertical,
1756 },
1757 scrollbar_layout_information,
1758 content_offset,
1759 scroll_position,
1760 self.style.scrollbar_width,
1761 right_margin,
1762 editor_width,
1763 show_scrollbars,
1764 self.editor.read(cx).scroll_manager.active_scrollbar_state(),
1765 window,
1766 ))
1767 }
1768
1769 fn layout_minimap(
1770 &self,
1771 snapshot: &EditorSnapshot,
1772 minimap_width: Pixels,
1773 scroll_position: gpui::Point<f32>,
1774 scrollbar_layout_information: &ScrollbarLayoutInformation,
1775 scrollbar_layout: Option<&EditorScrollbars>,
1776 window: &mut Window,
1777 cx: &mut App,
1778 ) -> Option<MinimapLayout> {
1779 let minimap_editor = self.editor.read(cx).minimap().cloned()?;
1780
1781 let minimap_settings = EditorSettings::get_global(cx).minimap;
1782
1783 if minimap_settings.on_active_editor() {
1784 let active_editor = self.editor.read(cx).workspace().and_then(|ws| {
1785 ws.read(cx)
1786 .active_pane()
1787 .read(cx)
1788 .active_item()
1789 .and_then(|i| i.act_as::<Editor>(cx))
1790 });
1791 if active_editor.is_some_and(|e| e != self.editor) {
1792 return None;
1793 }
1794 }
1795
1796 if !snapshot.mode.is_full()
1797 || minimap_width.is_zero()
1798 || matches!(
1799 minimap_settings.show,
1800 ShowMinimap::Auto if scrollbar_layout.is_none_or(|layout| !layout.visible)
1801 )
1802 {
1803 return None;
1804 }
1805
1806 const MINIMAP_AXIS: ScrollbarAxis = ScrollbarAxis::Vertical;
1807
1808 let ScrollbarLayoutInformation {
1809 editor_bounds,
1810 scroll_range,
1811 glyph_grid_cell,
1812 } = scrollbar_layout_information;
1813
1814 let line_height = glyph_grid_cell.height;
1815 let scroll_position = scroll_position.along(MINIMAP_AXIS);
1816
1817 let top_right_anchor = scrollbar_layout
1818 .and_then(|layout| layout.vertical.as_ref())
1819 .map(|vertical_scrollbar| vertical_scrollbar.hitbox.origin)
1820 .unwrap_or_else(|| editor_bounds.top_right());
1821
1822 let thumb_state = self
1823 .editor
1824 .read_with(cx, |editor, _| editor.scroll_manager.minimap_thumb_state());
1825
1826 let show_thumb = match minimap_settings.thumb {
1827 MinimapThumb::Always => true,
1828 MinimapThumb::Hover => thumb_state.is_some(),
1829 };
1830
1831 let minimap_bounds = Bounds::from_corner_and_size(
1832 Corner::TopRight,
1833 top_right_anchor,
1834 size(minimap_width, editor_bounds.size.height),
1835 );
1836 let minimap_line_height = self.get_minimap_line_height(
1837 minimap_editor
1838 .read(cx)
1839 .text_style_refinement
1840 .as_ref()
1841 .and_then(|refinement| refinement.font_size)
1842 .unwrap_or(MINIMAP_FONT_SIZE),
1843 window,
1844 cx,
1845 );
1846 let minimap_height = minimap_bounds.size.height;
1847
1848 let visible_editor_lines = editor_bounds.size.height / line_height;
1849 let total_editor_lines = scroll_range.height / line_height;
1850 let minimap_lines = minimap_height / minimap_line_height;
1851
1852 let minimap_scroll_top = MinimapLayout::calculate_minimap_top_offset(
1853 total_editor_lines,
1854 visible_editor_lines,
1855 minimap_lines,
1856 scroll_position,
1857 );
1858
1859 let layout = ScrollbarLayout::for_minimap(
1860 window.insert_hitbox(minimap_bounds, HitboxBehavior::Normal),
1861 visible_editor_lines,
1862 total_editor_lines,
1863 minimap_line_height,
1864 scroll_position,
1865 minimap_scroll_top,
1866 show_thumb,
1867 )
1868 .with_thumb_state(thumb_state);
1869
1870 minimap_editor.update(cx, |editor, cx| {
1871 editor.set_scroll_position(point(0., minimap_scroll_top), window, cx)
1872 });
1873
1874 // Required for the drop shadow to be visible
1875 const PADDING_OFFSET: Pixels = px(4.);
1876
1877 let mut minimap = div()
1878 .size_full()
1879 .shadow_sm()
1880 .px(PADDING_OFFSET)
1881 .child(minimap_editor)
1882 .into_any_element();
1883
1884 let extended_bounds = minimap_bounds.extend(Edges {
1885 right: PADDING_OFFSET,
1886 left: PADDING_OFFSET,
1887 ..Default::default()
1888 });
1889 minimap.layout_as_root(extended_bounds.size.into(), window, cx);
1890 window.with_absolute_element_offset(extended_bounds.origin, |window| {
1891 minimap.prepaint(window, cx)
1892 });
1893
1894 Some(MinimapLayout {
1895 minimap,
1896 thumb_layout: layout,
1897 thumb_border_style: minimap_settings.thumb_border,
1898 minimap_line_height,
1899 minimap_scroll_top,
1900 max_scroll_top: total_editor_lines,
1901 })
1902 }
1903
1904 fn get_minimap_line_height(
1905 &self,
1906 font_size: AbsoluteLength,
1907 window: &mut Window,
1908 cx: &mut App,
1909 ) -> Pixels {
1910 let rem_size = self.rem_size(cx).unwrap_or(window.rem_size());
1911 let mut text_style = self.style.text.clone();
1912 text_style.font_size = font_size;
1913 text_style.line_height_in_pixels(rem_size)
1914 }
1915
1916 fn get_minimap_width(
1917 &self,
1918 minimap_settings: &Minimap,
1919 scrollbars_shown: bool,
1920 text_width: Pixels,
1921 em_width: Pixels,
1922 font_size: Pixels,
1923 rem_size: Pixels,
1924 cx: &App,
1925 ) -> Option<Pixels> {
1926 if minimap_settings.show == ShowMinimap::Auto && !scrollbars_shown {
1927 return None;
1928 }
1929
1930 let minimap_font_size = self.editor.read_with(cx, |editor, cx| {
1931 editor.minimap().map(|minimap_editor| {
1932 minimap_editor
1933 .read(cx)
1934 .text_style_refinement
1935 .as_ref()
1936 .and_then(|refinement| refinement.font_size)
1937 .unwrap_or(MINIMAP_FONT_SIZE)
1938 })
1939 })?;
1940
1941 let minimap_em_width = em_width * (minimap_font_size.to_pixels(rem_size) / font_size);
1942
1943 let minimap_width = (text_width * MinimapLayout::MINIMAP_WIDTH_PCT)
1944 .min(minimap_em_width * minimap_settings.max_width_columns.get() as f32);
1945
1946 (minimap_width >= minimap_em_width * MinimapLayout::MINIMAP_MIN_WIDTH_COLUMNS)
1947 .then_some(minimap_width)
1948 }
1949
1950 fn prepaint_crease_toggles(
1951 &self,
1952 crease_toggles: &mut [Option<AnyElement>],
1953 line_height: Pixels,
1954 gutter_dimensions: &GutterDimensions,
1955 gutter_settings: crate::editor_settings::Gutter,
1956 scroll_pixel_position: gpui::Point<Pixels>,
1957 gutter_hitbox: &Hitbox,
1958 window: &mut Window,
1959 cx: &mut App,
1960 ) {
1961 for (ix, crease_toggle) in crease_toggles.iter_mut().enumerate() {
1962 if let Some(crease_toggle) = crease_toggle {
1963 debug_assert!(gutter_settings.folds);
1964 let available_space = size(
1965 AvailableSpace::MinContent,
1966 AvailableSpace::Definite(line_height * 0.55),
1967 );
1968 let crease_toggle_size = crease_toggle.layout_as_root(available_space, window, cx);
1969
1970 let position = point(
1971 gutter_dimensions.width - gutter_dimensions.right_padding,
1972 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
1973 );
1974 let centering_offset = point(
1975 (gutter_dimensions.fold_area_width() - crease_toggle_size.width) / 2.,
1976 (line_height - crease_toggle_size.height) / 2.,
1977 );
1978 let origin = gutter_hitbox.origin + position + centering_offset;
1979 crease_toggle.prepaint_as_root(origin, available_space, window, cx);
1980 }
1981 }
1982 }
1983
1984 fn prepaint_expand_toggles(
1985 &self,
1986 expand_toggles: &mut [Option<(AnyElement, gpui::Point<Pixels>)>],
1987 window: &mut Window,
1988 cx: &mut App,
1989 ) {
1990 for (expand_toggle, origin) in expand_toggles.iter_mut().flatten() {
1991 let available_space = size(AvailableSpace::MinContent, AvailableSpace::MinContent);
1992 expand_toggle.layout_as_root(available_space, window, cx);
1993 expand_toggle.prepaint_as_root(*origin, available_space, window, cx);
1994 }
1995 }
1996
1997 fn prepaint_crease_trailers(
1998 &self,
1999 trailers: Vec<Option<AnyElement>>,
2000 lines: &[LineWithInvisibles],
2001 line_height: Pixels,
2002 content_origin: gpui::Point<Pixels>,
2003 scroll_pixel_position: gpui::Point<Pixels>,
2004 em_width: Pixels,
2005 window: &mut Window,
2006 cx: &mut App,
2007 ) -> Vec<Option<CreaseTrailerLayout>> {
2008 trailers
2009 .into_iter()
2010 .enumerate()
2011 .map(|(ix, element)| {
2012 let mut element = element?;
2013 let available_space = size(
2014 AvailableSpace::MinContent,
2015 AvailableSpace::Definite(line_height),
2016 );
2017 let size = element.layout_as_root(available_space, window, cx);
2018
2019 let line = &lines[ix];
2020 let padding = if line.width == Pixels::ZERO {
2021 Pixels::ZERO
2022 } else {
2023 4. * em_width
2024 };
2025 let position = point(
2026 scroll_pixel_position.x + line.width + padding,
2027 ix as f32 * line_height - (scroll_pixel_position.y % line_height),
2028 );
2029 let centering_offset = point(px(0.), (line_height - size.height) / 2.);
2030 let origin = content_origin + position + centering_offset;
2031 element.prepaint_as_root(origin, available_space, window, cx);
2032 Some(CreaseTrailerLayout {
2033 element,
2034 bounds: Bounds::new(origin, size),
2035 })
2036 })
2037 .collect()
2038 }
2039
2040 // Folds contained in a hunk are ignored apart from shrinking visual size
2041 // If a fold contains any hunks then that fold line is marked as modified
2042 fn layout_gutter_diff_hunks(
2043 &self,
2044 line_height: Pixels,
2045 gutter_hitbox: &Hitbox,
2046 display_rows: Range<DisplayRow>,
2047 snapshot: &EditorSnapshot,
2048 window: &mut Window,
2049 cx: &mut App,
2050 ) -> Vec<(DisplayDiffHunk, Option<Hitbox>)> {
2051 let folded_buffers = self.editor.read(cx).folded_buffers(cx);
2052 let mut display_hunks = snapshot
2053 .display_diff_hunks_for_rows(display_rows, folded_buffers)
2054 .map(|hunk| (hunk, None))
2055 .collect::<Vec<_>>();
2056 let git_gutter_setting = ProjectSettings::get_global(cx)
2057 .git
2058 .git_gutter
2059 .unwrap_or_default();
2060 if let GitGutterSetting::TrackedFiles = git_gutter_setting {
2061 for (hunk, hitbox) in &mut display_hunks {
2062 if matches!(hunk, DisplayDiffHunk::Unfolded { .. }) {
2063 let hunk_bounds =
2064 Self::diff_hunk_bounds(snapshot, line_height, gutter_hitbox.bounds, hunk);
2065 *hitbox = Some(window.insert_hitbox(hunk_bounds, HitboxBehavior::BlockMouse));
2066 }
2067 }
2068 }
2069
2070 display_hunks
2071 }
2072
2073 fn layout_inline_diagnostics(
2074 &self,
2075 line_layouts: &[LineWithInvisibles],
2076 crease_trailers: &[Option<CreaseTrailerLayout>],
2077 row_block_types: &HashMap<DisplayRow, bool>,
2078 content_origin: gpui::Point<Pixels>,
2079 scroll_pixel_position: gpui::Point<Pixels>,
2080 inline_completion_popover_origin: Option<gpui::Point<Pixels>>,
2081 start_row: DisplayRow,
2082 end_row: DisplayRow,
2083 line_height: Pixels,
2084 em_width: Pixels,
2085 style: &EditorStyle,
2086 window: &mut Window,
2087 cx: &mut App,
2088 ) -> HashMap<DisplayRow, AnyElement> {
2089 if self.editor.read(cx).mode().is_minimap() {
2090 return HashMap::default();
2091 }
2092
2093 let max_severity = match ProjectSettings::get_global(cx)
2094 .diagnostics
2095 .inline
2096 .max_severity
2097 .unwrap_or_else(|| self.editor.read(cx).diagnostics_max_severity)
2098 .into_lsp()
2099 {
2100 Some(max_severity) => max_severity,
2101 None => return HashMap::default(),
2102 };
2103
2104 let active_diagnostics_group =
2105 if let ActiveDiagnostic::Group(group) = &self.editor.read(cx).active_diagnostics {
2106 Some(group.group_id)
2107 } else {
2108 None
2109 };
2110
2111 let diagnostics_by_rows = self.editor.update(cx, |editor, cx| {
2112 let snapshot = editor.snapshot(window, cx);
2113 editor
2114 .inline_diagnostics
2115 .iter()
2116 .filter(|(_, diagnostic)| diagnostic.severity <= max_severity)
2117 .filter(|(_, diagnostic)| match active_diagnostics_group {
2118 Some(active_diagnostics_group) => {
2119 // Active diagnostics are all shown in the editor already, no need to display them inline
2120 diagnostic.group_id != active_diagnostics_group
2121 }
2122 None => true,
2123 })
2124 .map(|(point, diag)| (point.to_display_point(&snapshot), diag.clone()))
2125 .skip_while(|(point, _)| point.row() < start_row)
2126 .take_while(|(point, _)| point.row() < end_row)
2127 .filter(|(point, _)| !row_block_types.contains_key(&point.row()))
2128 .fold(HashMap::default(), |mut acc, (point, diagnostic)| {
2129 acc.entry(point.row())
2130 .or_insert_with(Vec::new)
2131 .push(diagnostic);
2132 acc
2133 })
2134 });
2135
2136 if diagnostics_by_rows.is_empty() {
2137 return HashMap::default();
2138 }
2139
2140 let severity_to_color = |sev: &lsp::DiagnosticSeverity| match sev {
2141 &lsp::DiagnosticSeverity::ERROR => Color::Error,
2142 &lsp::DiagnosticSeverity::WARNING => Color::Warning,
2143 &lsp::DiagnosticSeverity::INFORMATION => Color::Info,
2144 &lsp::DiagnosticSeverity::HINT => Color::Hint,
2145 _ => Color::Error,
2146 };
2147
2148 let padding = ProjectSettings::get_global(cx).diagnostics.inline.padding as f32 * em_width;
2149 let min_x = ProjectSettings::get_global(cx)
2150 .diagnostics
2151 .inline
2152 .min_column as f32
2153 * em_width;
2154
2155 let mut elements = HashMap::default();
2156 for (row, mut diagnostics) in diagnostics_by_rows {
2157 diagnostics.sort_by_key(|diagnostic| {
2158 (
2159 diagnostic.severity,
2160 std::cmp::Reverse(diagnostic.is_primary),
2161 diagnostic.start.row,
2162 diagnostic.start.column,
2163 )
2164 });
2165
2166 let Some(diagnostic_to_render) = diagnostics
2167 .iter()
2168 .find(|diagnostic| diagnostic.is_primary)
2169 .or_else(|| diagnostics.first())
2170 else {
2171 continue;
2172 };
2173
2174 let pos_y = content_origin.y
2175 + line_height * (row.0 as f32 - scroll_pixel_position.y / line_height);
2176
2177 let window_ix = row.0.saturating_sub(start_row.0) as usize;
2178 let pos_x = {
2179 let crease_trailer_layout = &crease_trailers[window_ix];
2180 let line_layout = &line_layouts[window_ix];
2181
2182 let line_end = if let Some(crease_trailer) = crease_trailer_layout {
2183 crease_trailer.bounds.right()
2184 } else {
2185 content_origin.x - scroll_pixel_position.x + line_layout.width
2186 };
2187
2188 let padded_line = line_end + padding;
2189 let min_start = content_origin.x - scroll_pixel_position.x + min_x;
2190
2191 cmp::max(padded_line, min_start)
2192 };
2193
2194 let behind_inline_completion_popover = inline_completion_popover_origin
2195 .as_ref()
2196 .map_or(false, |inline_completion_popover_origin| {
2197 (pos_y..pos_y + line_height).contains(&inline_completion_popover_origin.y)
2198 });
2199 let opacity = if behind_inline_completion_popover {
2200 0.5
2201 } else {
2202 1.0
2203 };
2204
2205 let mut element = h_flex()
2206 .id(("diagnostic", row.0))
2207 .h(line_height)
2208 .w_full()
2209 .px_1()
2210 .rounded_xs()
2211 .opacity(opacity)
2212 .bg(severity_to_color(&diagnostic_to_render.severity)
2213 .color(cx)
2214 .opacity(0.05))
2215 .text_color(severity_to_color(&diagnostic_to_render.severity).color(cx))
2216 .text_sm()
2217 .font_family(style.text.font().family)
2218 .child(diagnostic_to_render.message.clone())
2219 .into_any();
2220
2221 element.prepaint_as_root(point(pos_x, pos_y), AvailableSpace::min_size(), window, cx);
2222
2223 elements.insert(row, element);
2224 }
2225
2226 elements
2227 }
2228
2229 fn layout_inline_code_actions(
2230 &self,
2231 display_point: DisplayPoint,
2232 content_origin: gpui::Point<Pixels>,
2233 scroll_pixel_position: gpui::Point<Pixels>,
2234 line_height: Pixels,
2235 snapshot: &EditorSnapshot,
2236 window: &mut Window,
2237 cx: &mut App,
2238 ) -> Option<AnyElement> {
2239 if !snapshot
2240 .show_code_actions
2241 .unwrap_or(EditorSettings::get_global(cx).inline_code_actions)
2242 {
2243 return None;
2244 }
2245
2246 let icon_size = ui::IconSize::XSmall;
2247 let mut button = self.editor.update(cx, |editor, cx| {
2248 editor.available_code_actions.as_ref()?;
2249 let active = editor
2250 .context_menu
2251 .borrow()
2252 .as_ref()
2253 .and_then(|menu| {
2254 if let crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2255 deployed_from,
2256 ..
2257 }) = menu
2258 {
2259 deployed_from.as_ref()
2260 } else {
2261 None
2262 }
2263 })
2264 .map_or(false, |source| {
2265 matches!(source, CodeActionSource::Indicator(..))
2266 });
2267 Some(editor.render_inline_code_actions(icon_size, display_point.row(), active, cx))
2268 })?;
2269
2270 let buffer_point = display_point.to_point(&snapshot.display_snapshot);
2271
2272 // do not show code action for folded line
2273 if snapshot.is_line_folded(MultiBufferRow(buffer_point.row)) {
2274 return None;
2275 }
2276
2277 // do not show code action for blank line with cursor
2278 let line_indent = snapshot
2279 .display_snapshot
2280 .buffer_snapshot
2281 .line_indent_for_row(MultiBufferRow(buffer_point.row));
2282 if line_indent.is_line_blank() {
2283 return None;
2284 }
2285
2286 const INLINE_SLOT_CHAR_LIMIT: u32 = 4;
2287 const MAX_ALTERNATE_DISTANCE: u32 = 8;
2288
2289 let excerpt_id = snapshot
2290 .display_snapshot
2291 .buffer_snapshot
2292 .excerpt_containing(buffer_point..buffer_point)
2293 .map(|excerpt| excerpt.id());
2294
2295 let is_valid_row = |row_candidate: u32| -> bool {
2296 // move to other row if folded row
2297 if snapshot.is_line_folded(MultiBufferRow(row_candidate)) {
2298 return false;
2299 }
2300 if buffer_point.row == row_candidate {
2301 // move to other row if cursor is in slot
2302 if buffer_point.column < INLINE_SLOT_CHAR_LIMIT {
2303 return false;
2304 }
2305 } else {
2306 let candidate_point = MultiBufferPoint {
2307 row: row_candidate,
2308 column: 0,
2309 };
2310 let candidate_excerpt_id = snapshot
2311 .display_snapshot
2312 .buffer_snapshot
2313 .excerpt_containing(candidate_point..candidate_point)
2314 .map(|excerpt| excerpt.id());
2315 // move to other row if different excerpt
2316 if excerpt_id != candidate_excerpt_id {
2317 return false;
2318 }
2319 }
2320 let line_indent = snapshot
2321 .display_snapshot
2322 .buffer_snapshot
2323 .line_indent_for_row(MultiBufferRow(row_candidate));
2324 // use this row if it's blank
2325 if line_indent.is_line_blank() {
2326 true
2327 } else {
2328 // use this row if code starts after slot
2329 let indent_size = snapshot
2330 .display_snapshot
2331 .buffer_snapshot
2332 .indent_size_for_line(MultiBufferRow(row_candidate));
2333 indent_size.len >= INLINE_SLOT_CHAR_LIMIT
2334 }
2335 };
2336
2337 let new_buffer_row = if is_valid_row(buffer_point.row) {
2338 Some(buffer_point.row)
2339 } else {
2340 let max_row = snapshot.display_snapshot.buffer_snapshot.max_point().row;
2341 (1..=MAX_ALTERNATE_DISTANCE).find_map(|offset| {
2342 let row_above = buffer_point.row.saturating_sub(offset);
2343 let row_below = buffer_point.row + offset;
2344 if row_above != buffer_point.row && is_valid_row(row_above) {
2345 Some(row_above)
2346 } else if row_below <= max_row && is_valid_row(row_below) {
2347 Some(row_below)
2348 } else {
2349 None
2350 }
2351 })
2352 }?;
2353
2354 let new_display_row = snapshot
2355 .display_snapshot
2356 .point_to_display_point(
2357 Point {
2358 row: new_buffer_row,
2359 column: buffer_point.column,
2360 },
2361 text::Bias::Left,
2362 )
2363 .row();
2364
2365 let start_y = content_origin.y
2366 + ((new_display_row.as_f32() - (scroll_pixel_position.y / line_height)) * line_height)
2367 + (line_height / 2.0)
2368 - (icon_size.square(window, cx) / 2.);
2369 let start_x = content_origin.x - scroll_pixel_position.x + (window.rem_size() * 0.1);
2370
2371 let absolute_offset = gpui::point(start_x, start_y);
2372 button.layout_as_root(gpui::AvailableSpace::min_size(), window, cx);
2373 button.prepaint_as_root(
2374 absolute_offset,
2375 gpui::AvailableSpace::min_size(),
2376 window,
2377 cx,
2378 );
2379 Some(button)
2380 }
2381
2382 fn layout_inline_blame(
2383 &self,
2384 display_row: DisplayRow,
2385 row_info: &RowInfo,
2386 line_layout: &LineWithInvisibles,
2387 crease_trailer: Option<&CreaseTrailerLayout>,
2388 em_width: Pixels,
2389 content_origin: gpui::Point<Pixels>,
2390 scroll_pixel_position: gpui::Point<Pixels>,
2391 line_height: Pixels,
2392 text_hitbox: &Hitbox,
2393 window: &mut Window,
2394 cx: &mut App,
2395 ) -> Option<InlineBlameLayout> {
2396 if !self
2397 .editor
2398 .update(cx, |editor, cx| editor.render_git_blame_inline(window, cx))
2399 {
2400 return None;
2401 }
2402
2403 let editor = self.editor.read(cx);
2404 let blame = editor.blame.clone()?;
2405 let padding = {
2406 const INLINE_BLAME_PADDING_EM_WIDTHS: f32 = 6.;
2407 const INLINE_ACCEPT_SUGGESTION_EM_WIDTHS: f32 = 14.;
2408
2409 let mut padding = INLINE_BLAME_PADDING_EM_WIDTHS;
2410
2411 if let Some(inline_completion) = editor.active_inline_completion.as_ref() {
2412 match &inline_completion.completion {
2413 InlineCompletion::Edit {
2414 display_mode: EditDisplayMode::TabAccept,
2415 ..
2416 } => padding += INLINE_ACCEPT_SUGGESTION_EM_WIDTHS,
2417 _ => {}
2418 }
2419 }
2420
2421 padding * em_width
2422 };
2423
2424 let entry = blame
2425 .update(cx, |blame, cx| {
2426 blame.blame_for_rows(&[*row_info], cx).next()
2427 })
2428 .flatten()?;
2429
2430 let mut element = render_inline_blame_entry(entry.clone(), &self.style, cx)?;
2431
2432 let start_y = content_origin.y
2433 + line_height * (display_row.as_f32() - scroll_pixel_position.y / line_height);
2434
2435 let start_x = {
2436 let line_end = if let Some(crease_trailer) = crease_trailer {
2437 crease_trailer.bounds.right()
2438 } else {
2439 content_origin.x - scroll_pixel_position.x + line_layout.width
2440 };
2441
2442 let padded_line_end = line_end + padding;
2443
2444 let min_column_in_pixels = ProjectSettings::get_global(cx)
2445 .git
2446 .inline_blame
2447 .and_then(|settings| settings.min_column)
2448 .map(|col| self.column_pixels(col as usize, window, cx))
2449 .unwrap_or(px(0.));
2450 let min_start = content_origin.x - scroll_pixel_position.x + min_column_in_pixels;
2451
2452 cmp::max(padded_line_end, min_start)
2453 };
2454
2455 let absolute_offset = point(start_x, start_y);
2456 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2457 let bounds = Bounds::new(absolute_offset, size);
2458
2459 self.layout_blame_entry_popover(entry.clone(), blame, line_height, text_hitbox, window, cx);
2460
2461 element.prepaint_as_root(absolute_offset, AvailableSpace::min_size(), window, cx);
2462
2463 Some(InlineBlameLayout {
2464 element,
2465 bounds,
2466 entry,
2467 })
2468 }
2469
2470 fn layout_blame_entry_popover(
2471 &self,
2472 blame_entry: BlameEntry,
2473 blame: Entity<GitBlame>,
2474 line_height: Pixels,
2475 text_hitbox: &Hitbox,
2476 window: &mut Window,
2477 cx: &mut App,
2478 ) {
2479 let Some((popover_state, target_point)) = self.editor.read_with(cx, |editor, _| {
2480 editor
2481 .inline_blame_popover
2482 .as_ref()
2483 .map(|state| (state.popover_state.clone(), state.position))
2484 }) else {
2485 return;
2486 };
2487
2488 let workspace = self
2489 .editor
2490 .read_with(cx, |editor, _| editor.workspace().map(|w| w.downgrade()));
2491
2492 let maybe_element = workspace.and_then(|workspace| {
2493 render_blame_entry_popover(
2494 blame_entry,
2495 popover_state.scroll_handle,
2496 popover_state.commit_message,
2497 popover_state.markdown,
2498 workspace,
2499 &blame,
2500 window,
2501 cx,
2502 )
2503 });
2504
2505 if let Some(mut element) = maybe_element {
2506 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
2507 let overall_height = size.height + HOVER_POPOVER_GAP;
2508 let popover_origin = if target_point.y > overall_height {
2509 point(target_point.x, target_point.y - size.height)
2510 } else {
2511 point(
2512 target_point.x,
2513 target_point.y + line_height + HOVER_POPOVER_GAP,
2514 )
2515 };
2516
2517 let horizontal_offset = (text_hitbox.top_right().x
2518 - POPOVER_RIGHT_OFFSET
2519 - (popover_origin.x + size.width))
2520 .min(Pixels::ZERO);
2521
2522 let origin = point(popover_origin.x + horizontal_offset, popover_origin.y);
2523 let popover_bounds = Bounds::new(origin, size);
2524
2525 self.editor.update(cx, |editor, _| {
2526 if let Some(state) = &mut editor.inline_blame_popover {
2527 state.popover_bounds = Some(popover_bounds);
2528 }
2529 });
2530
2531 window.defer_draw(element, origin, 2);
2532 }
2533 }
2534
2535 fn layout_blame_entries(
2536 &self,
2537 buffer_rows: &[RowInfo],
2538 em_width: Pixels,
2539 scroll_position: gpui::Point<f32>,
2540 line_height: Pixels,
2541 gutter_hitbox: &Hitbox,
2542 max_width: Option<Pixels>,
2543 window: &mut Window,
2544 cx: &mut App,
2545 ) -> Option<Vec<AnyElement>> {
2546 if !self
2547 .editor
2548 .update(cx, |editor, cx| editor.render_git_blame_gutter(cx))
2549 {
2550 return None;
2551 }
2552
2553 let blame = self.editor.read(cx).blame.clone()?;
2554 let workspace = self.editor.read(cx).workspace()?;
2555 let blamed_rows: Vec<_> = blame.update(cx, |blame, cx| {
2556 blame.blame_for_rows(buffer_rows, cx).collect()
2557 });
2558
2559 let width = if let Some(max_width) = max_width {
2560 AvailableSpace::Definite(max_width)
2561 } else {
2562 AvailableSpace::MaxContent
2563 };
2564 let scroll_top = scroll_position.y * line_height;
2565 let start_x = em_width;
2566
2567 let mut last_used_color: Option<(PlayerColor, Oid)> = None;
2568 let blame_renderer = cx.global::<GlobalBlameRenderer>().0.clone();
2569
2570 let shaped_lines = blamed_rows
2571 .into_iter()
2572 .enumerate()
2573 .flat_map(|(ix, blame_entry)| {
2574 let mut element = render_blame_entry(
2575 ix,
2576 &blame,
2577 blame_entry?,
2578 &self.style,
2579 &mut last_used_color,
2580 self.editor.clone(),
2581 workspace.clone(),
2582 blame_renderer.clone(),
2583 cx,
2584 )?;
2585
2586 let start_y = ix as f32 * line_height - (scroll_top % line_height);
2587 let absolute_offset = gutter_hitbox.origin + point(start_x, start_y);
2588
2589 element.prepaint_as_root(
2590 absolute_offset,
2591 size(width, AvailableSpace::MinContent),
2592 window,
2593 cx,
2594 );
2595
2596 Some(element)
2597 })
2598 .collect();
2599
2600 Some(shaped_lines)
2601 }
2602
2603 fn layout_indent_guides(
2604 &self,
2605 content_origin: gpui::Point<Pixels>,
2606 text_origin: gpui::Point<Pixels>,
2607 visible_buffer_range: Range<MultiBufferRow>,
2608 scroll_pixel_position: gpui::Point<Pixels>,
2609 line_height: Pixels,
2610 snapshot: &DisplaySnapshot,
2611 window: &mut Window,
2612 cx: &mut App,
2613 ) -> Option<Vec<IndentGuideLayout>> {
2614 if self.editor.read(cx).mode().is_minimap() {
2615 return None;
2616 }
2617 let indent_guides = self.editor.update(cx, |editor, cx| {
2618 editor.indent_guides(visible_buffer_range, snapshot, cx)
2619 })?;
2620
2621 let active_indent_guide_indices = self.editor.update(cx, |editor, cx| {
2622 editor
2623 .find_active_indent_guide_indices(&indent_guides, snapshot, window, cx)
2624 .unwrap_or_default()
2625 });
2626
2627 Some(
2628 indent_guides
2629 .into_iter()
2630 .enumerate()
2631 .filter_map(|(i, indent_guide)| {
2632 let single_indent_width =
2633 self.column_pixels(indent_guide.tab_size as usize, window, cx);
2634 let total_width = single_indent_width * indent_guide.depth as f32;
2635 let start_x = content_origin.x + total_width - scroll_pixel_position.x;
2636 if start_x >= text_origin.x {
2637 let (offset_y, length) = Self::calculate_indent_guide_bounds(
2638 indent_guide.start_row..indent_guide.end_row,
2639 line_height,
2640 snapshot,
2641 );
2642
2643 let start_y = content_origin.y + offset_y - scroll_pixel_position.y;
2644
2645 Some(IndentGuideLayout {
2646 origin: point(start_x, start_y),
2647 length,
2648 single_indent_width,
2649 depth: indent_guide.depth,
2650 active: active_indent_guide_indices.contains(&i),
2651 settings: indent_guide.settings,
2652 })
2653 } else {
2654 None
2655 }
2656 })
2657 .collect(),
2658 )
2659 }
2660
2661 fn calculate_indent_guide_bounds(
2662 row_range: Range<MultiBufferRow>,
2663 line_height: Pixels,
2664 snapshot: &DisplaySnapshot,
2665 ) -> (gpui::Pixels, gpui::Pixels) {
2666 let start_point = Point::new(row_range.start.0, 0);
2667 let end_point = Point::new(row_range.end.0, 0);
2668
2669 let row_range = start_point.to_display_point(snapshot).row()
2670 ..end_point.to_display_point(snapshot).row();
2671
2672 let mut prev_line = start_point;
2673 prev_line.row = prev_line.row.saturating_sub(1);
2674 let prev_line = prev_line.to_display_point(snapshot).row();
2675
2676 let mut cons_line = end_point;
2677 cons_line.row += 1;
2678 let cons_line = cons_line.to_display_point(snapshot).row();
2679
2680 let mut offset_y = row_range.start.0 as f32 * line_height;
2681 let mut length = (cons_line.0.saturating_sub(row_range.start.0)) as f32 * line_height;
2682
2683 // If we are at the end of the buffer, ensure that the indent guide extends to the end of the line.
2684 if row_range.end == cons_line {
2685 length += line_height;
2686 }
2687
2688 // If there is a block (e.g. diagnostic) in between the start of the indent guide and the line above,
2689 // we want to extend the indent guide to the start of the block.
2690 let mut block_height = 0;
2691 let mut block_offset = 0;
2692 let mut found_excerpt_header = false;
2693 for (_, block) in snapshot.blocks_in_range(prev_line..row_range.start) {
2694 if matches!(block, Block::ExcerptBoundary { .. }) {
2695 found_excerpt_header = true;
2696 break;
2697 }
2698 block_offset += block.height();
2699 block_height += block.height();
2700 }
2701 if !found_excerpt_header {
2702 offset_y -= block_offset as f32 * line_height;
2703 length += block_height as f32 * line_height;
2704 }
2705
2706 // If there is a block (e.g. diagnostic) at the end of an multibuffer excerpt,
2707 // we want to ensure that the indent guide stops before the excerpt header.
2708 let mut block_height = 0;
2709 let mut found_excerpt_header = false;
2710 for (_, block) in snapshot.blocks_in_range(row_range.end..cons_line) {
2711 if matches!(block, Block::ExcerptBoundary { .. }) {
2712 found_excerpt_header = true;
2713 }
2714 block_height += block.height();
2715 }
2716 if found_excerpt_header {
2717 length -= block_height as f32 * line_height;
2718 }
2719
2720 (offset_y, length)
2721 }
2722
2723 fn layout_breakpoints(
2724 &self,
2725 line_height: Pixels,
2726 range: Range<DisplayRow>,
2727 scroll_pixel_position: gpui::Point<Pixels>,
2728 gutter_dimensions: &GutterDimensions,
2729 gutter_hitbox: &Hitbox,
2730 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2731 snapshot: &EditorSnapshot,
2732 breakpoints: HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2733 row_infos: &[RowInfo],
2734 window: &mut Window,
2735 cx: &mut App,
2736 ) -> Vec<AnyElement> {
2737 self.editor.update(cx, |editor, cx| {
2738 breakpoints
2739 .into_iter()
2740 .filter_map(|(display_row, (text_anchor, bp, state))| {
2741 if row_infos
2742 .get((display_row.0.saturating_sub(range.start.0)) as usize)
2743 .is_some_and(|row_info| {
2744 row_info.expand_info.is_some()
2745 || row_info
2746 .diff_status
2747 .is_some_and(|status| status.is_deleted())
2748 })
2749 {
2750 return None;
2751 }
2752
2753 if range.start > display_row || range.end < display_row {
2754 return None;
2755 }
2756
2757 let row =
2758 MultiBufferRow(DisplayPoint::new(display_row, 0).to_point(&snapshot).row);
2759 if snapshot.is_line_folded(row) {
2760 return None;
2761 }
2762
2763 let button = editor.render_breakpoint(text_anchor, display_row, &bp, state, cx);
2764
2765 let button = prepaint_gutter_button(
2766 button,
2767 display_row,
2768 line_height,
2769 gutter_dimensions,
2770 scroll_pixel_position,
2771 gutter_hitbox,
2772 display_hunks,
2773 window,
2774 cx,
2775 );
2776 Some(button)
2777 })
2778 .collect_vec()
2779 })
2780 }
2781
2782 #[allow(clippy::too_many_arguments)]
2783 fn layout_run_indicators(
2784 &self,
2785 line_height: Pixels,
2786 range: Range<DisplayRow>,
2787 row_infos: &[RowInfo],
2788 scroll_pixel_position: gpui::Point<Pixels>,
2789 gutter_dimensions: &GutterDimensions,
2790 gutter_hitbox: &Hitbox,
2791 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
2792 snapshot: &EditorSnapshot,
2793 breakpoints: &mut HashMap<DisplayRow, (Anchor, Breakpoint, Option<BreakpointSessionState>)>,
2794 window: &mut Window,
2795 cx: &mut App,
2796 ) -> Vec<AnyElement> {
2797 self.editor.update(cx, |editor, cx| {
2798 let active_task_indicator_row =
2799 if let Some(crate::CodeContextMenu::CodeActions(CodeActionsMenu {
2800 deployed_from,
2801 actions,
2802 ..
2803 })) = editor.context_menu.borrow().as_ref()
2804 {
2805 actions
2806 .tasks()
2807 .map(|tasks| tasks.position.to_display_point(snapshot).row())
2808 .or_else(|| match deployed_from {
2809 Some(CodeActionSource::Indicator(row)) => Some(*row),
2810 _ => None,
2811 })
2812 } else {
2813 None
2814 };
2815
2816 let offset_range_start =
2817 snapshot.display_point_to_point(DisplayPoint::new(range.start, 0), Bias::Left);
2818
2819 let offset_range_end =
2820 snapshot.display_point_to_point(DisplayPoint::new(range.end, 0), Bias::Right);
2821
2822 editor
2823 .tasks
2824 .iter()
2825 .filter_map(|(_, tasks)| {
2826 let multibuffer_point = tasks.offset.to_point(&snapshot.buffer_snapshot);
2827 if multibuffer_point < offset_range_start
2828 || multibuffer_point > offset_range_end
2829 {
2830 return None;
2831 }
2832 let multibuffer_row = MultiBufferRow(multibuffer_point.row);
2833 let buffer_folded = snapshot
2834 .buffer_snapshot
2835 .buffer_line_for_row(multibuffer_row)
2836 .map(|(buffer_snapshot, _)| buffer_snapshot.remote_id())
2837 .map(|buffer_id| editor.is_buffer_folded(buffer_id, cx))
2838 .unwrap_or(false);
2839 if buffer_folded {
2840 return None;
2841 }
2842
2843 if snapshot.is_line_folded(multibuffer_row) {
2844 // Skip folded indicators, unless it's the starting line of a fold.
2845 if multibuffer_row
2846 .0
2847 .checked_sub(1)
2848 .map_or(false, |previous_row| {
2849 snapshot.is_line_folded(MultiBufferRow(previous_row))
2850 })
2851 {
2852 return None;
2853 }
2854 }
2855
2856 let display_row = multibuffer_point.to_display_point(snapshot).row();
2857 if !range.contains(&display_row) {
2858 return None;
2859 }
2860 if row_infos
2861 .get((display_row - range.start).0 as usize)
2862 .is_some_and(|row_info| row_info.expand_info.is_some())
2863 {
2864 return None;
2865 }
2866
2867 let button = editor.render_run_indicator(
2868 &self.style,
2869 Some(display_row) == active_task_indicator_row,
2870 display_row,
2871 breakpoints.remove(&display_row),
2872 cx,
2873 );
2874
2875 let button = prepaint_gutter_button(
2876 button,
2877 display_row,
2878 line_height,
2879 gutter_dimensions,
2880 scroll_pixel_position,
2881 gutter_hitbox,
2882 display_hunks,
2883 window,
2884 cx,
2885 );
2886 Some(button)
2887 })
2888 .collect_vec()
2889 })
2890 }
2891
2892 fn layout_expand_toggles(
2893 &self,
2894 gutter_hitbox: &Hitbox,
2895 gutter_dimensions: GutterDimensions,
2896 em_width: Pixels,
2897 line_height: Pixels,
2898 scroll_position: gpui::Point<f32>,
2899 buffer_rows: &[RowInfo],
2900 window: &mut Window,
2901 cx: &mut App,
2902 ) -> Vec<Option<(AnyElement, gpui::Point<Pixels>)>> {
2903 if self.editor.read(cx).disable_expand_excerpt_buttons {
2904 return vec![];
2905 }
2906
2907 let editor_font_size = self.style.text.font_size.to_pixels(window.rem_size()) * 1.2;
2908
2909 let scroll_top = scroll_position.y * line_height;
2910
2911 let max_line_number_length = self
2912 .editor
2913 .read(cx)
2914 .buffer()
2915 .read(cx)
2916 .snapshot(cx)
2917 .widest_line_number()
2918 .ilog10()
2919 + 1;
2920
2921 let elements = buffer_rows
2922 .into_iter()
2923 .enumerate()
2924 .map(|(ix, row_info)| {
2925 let ExpandInfo {
2926 excerpt_id,
2927 direction,
2928 } = row_info.expand_info?;
2929
2930 let icon_name = match direction {
2931 ExpandExcerptDirection::Up => IconName::ExpandUp,
2932 ExpandExcerptDirection::Down => IconName::ExpandDown,
2933 ExpandExcerptDirection::UpAndDown => IconName::ExpandVertical,
2934 };
2935
2936 let git_gutter_width = Self::gutter_strip_width(line_height);
2937 let available_width = gutter_dimensions.left_padding - git_gutter_width;
2938
2939 let editor = self.editor.clone();
2940 let is_wide = max_line_number_length
2941 >= EditorSettings::get_global(cx).gutter.min_line_number_digits as u32
2942 && row_info
2943 .buffer_row
2944 .is_some_and(|row| (row + 1).ilog10() + 1 == max_line_number_length)
2945 || gutter_dimensions.right_padding == px(0.);
2946
2947 let width = if is_wide {
2948 available_width - px(2.)
2949 } else {
2950 available_width + em_width - px(2.)
2951 };
2952
2953 let toggle = IconButton::new(("expand", ix), icon_name)
2954 .icon_color(Color::Custom(cx.theme().colors().editor_line_number))
2955 .selected_icon_color(Color::Custom(cx.theme().colors().editor_foreground))
2956 .icon_size(IconSize::Custom(rems(editor_font_size / window.rem_size())))
2957 .width(width.into())
2958 .on_click(move |_, window, cx| {
2959 editor.update(cx, |editor, cx| {
2960 editor.expand_excerpt(excerpt_id, direction, window, cx);
2961 });
2962 })
2963 .tooltip(Tooltip::for_action_title(
2964 "Expand Excerpt",
2965 &crate::actions::ExpandExcerpts::default(),
2966 ))
2967 .into_any_element();
2968
2969 let position = point(
2970 git_gutter_width + px(1.),
2971 ix as f32 * line_height - (scroll_top % line_height) + px(1.),
2972 );
2973 let origin = gutter_hitbox.origin + position;
2974
2975 Some((toggle, origin))
2976 })
2977 .collect();
2978
2979 elements
2980 }
2981
2982 fn calculate_relative_line_numbers(
2983 &self,
2984 snapshot: &EditorSnapshot,
2985 rows: &Range<DisplayRow>,
2986 relative_to: Option<DisplayRow>,
2987 ) -> HashMap<DisplayRow, DisplayRowDelta> {
2988 let mut relative_rows: HashMap<DisplayRow, DisplayRowDelta> = Default::default();
2989 let Some(relative_to) = relative_to else {
2990 return relative_rows;
2991 };
2992
2993 let start = rows.start.min(relative_to);
2994 let end = rows.end.max(relative_to);
2995
2996 let buffer_rows = snapshot
2997 .row_infos(start)
2998 .take(1 + end.minus(start) as usize)
2999 .collect::<Vec<_>>();
3000
3001 let head_idx = relative_to.minus(start);
3002 let mut delta = 1;
3003 let mut i = head_idx + 1;
3004 while i < buffer_rows.len() as u32 {
3005 if buffer_rows[i as usize].buffer_row.is_some() {
3006 if rows.contains(&DisplayRow(i + start.0)) {
3007 relative_rows.insert(DisplayRow(i + start.0), delta);
3008 }
3009 delta += 1;
3010 }
3011 i += 1;
3012 }
3013 delta = 1;
3014 i = head_idx.min(buffer_rows.len() as u32 - 1);
3015 while i > 0 && buffer_rows[i as usize].buffer_row.is_none() {
3016 i -= 1;
3017 }
3018
3019 while i > 0 {
3020 i -= 1;
3021 if buffer_rows[i as usize].buffer_row.is_some() {
3022 if rows.contains(&DisplayRow(i + start.0)) {
3023 relative_rows.insert(DisplayRow(i + start.0), delta);
3024 }
3025 delta += 1;
3026 }
3027 }
3028
3029 relative_rows
3030 }
3031
3032 fn layout_line_numbers(
3033 &self,
3034 gutter_hitbox: Option<&Hitbox>,
3035 gutter_dimensions: GutterDimensions,
3036 line_height: Pixels,
3037 scroll_position: gpui::Point<f32>,
3038 rows: Range<DisplayRow>,
3039 buffer_rows: &[RowInfo],
3040 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3041 newest_selection_head: Option<DisplayPoint>,
3042 snapshot: &EditorSnapshot,
3043 window: &mut Window,
3044 cx: &mut App,
3045 ) -> Arc<HashMap<MultiBufferRow, LineNumberLayout>> {
3046 let include_line_numbers = snapshot.show_line_numbers.unwrap_or_else(|| {
3047 EditorSettings::get_global(cx).gutter.line_numbers && snapshot.mode.is_full()
3048 });
3049 if !include_line_numbers {
3050 return Arc::default();
3051 }
3052
3053 let (newest_selection_head, is_relative) = self.editor.update(cx, |editor, cx| {
3054 let newest_selection_head = newest_selection_head.unwrap_or_else(|| {
3055 let newest = editor.selections.newest::<Point>(cx);
3056 SelectionLayout::new(
3057 newest,
3058 editor.selections.line_mode,
3059 editor.cursor_shape,
3060 &snapshot.display_snapshot,
3061 true,
3062 true,
3063 None,
3064 )
3065 .head
3066 });
3067 let is_relative = editor.should_use_relative_line_numbers(cx);
3068 (newest_selection_head, is_relative)
3069 });
3070
3071 let relative_to = if is_relative {
3072 Some(newest_selection_head.row())
3073 } else {
3074 None
3075 };
3076 let relative_rows = self.calculate_relative_line_numbers(snapshot, &rows, relative_to);
3077 let mut line_number = String::new();
3078 let line_numbers = buffer_rows
3079 .into_iter()
3080 .enumerate()
3081 .flat_map(|(ix, row_info)| {
3082 let display_row = DisplayRow(rows.start.0 + ix as u32);
3083 line_number.clear();
3084 let non_relative_number = row_info.buffer_row? + 1;
3085 let number = relative_rows
3086 .get(&display_row)
3087 .unwrap_or(&non_relative_number);
3088 write!(&mut line_number, "{number}").unwrap();
3089 if row_info
3090 .diff_status
3091 .is_some_and(|status| status.is_deleted())
3092 {
3093 return None;
3094 }
3095
3096 let color = active_rows
3097 .get(&display_row)
3098 .map(|spec| {
3099 if spec.breakpoint {
3100 cx.theme().colors().debugger_accent
3101 } else {
3102 cx.theme().colors().editor_active_line_number
3103 }
3104 })
3105 .unwrap_or_else(|| cx.theme().colors().editor_line_number);
3106 let shaped_line =
3107 self.shape_line_number(SharedString::from(&line_number), color, window);
3108 let scroll_top = scroll_position.y * line_height;
3109 let line_origin = gutter_hitbox.map(|hitbox| {
3110 hitbox.origin
3111 + point(
3112 hitbox.size.width - shaped_line.width - gutter_dimensions.right_padding,
3113 ix as f32 * line_height - (scroll_top % line_height),
3114 )
3115 });
3116
3117 #[cfg(not(test))]
3118 let hitbox = line_origin.map(|line_origin| {
3119 window.insert_hitbox(
3120 Bounds::new(line_origin, size(shaped_line.width, line_height)),
3121 HitboxBehavior::Normal,
3122 )
3123 });
3124 #[cfg(test)]
3125 let hitbox = {
3126 let _ = line_origin;
3127 None
3128 };
3129
3130 let multi_buffer_row = DisplayPoint::new(display_row, 0).to_point(snapshot).row;
3131 let multi_buffer_row = MultiBufferRow(multi_buffer_row);
3132 let line_number = LineNumberLayout {
3133 shaped_line,
3134 hitbox,
3135 };
3136 Some((multi_buffer_row, line_number))
3137 })
3138 .collect();
3139 Arc::new(line_numbers)
3140 }
3141
3142 fn layout_crease_toggles(
3143 &self,
3144 rows: Range<DisplayRow>,
3145 row_infos: &[RowInfo],
3146 active_rows: &BTreeMap<DisplayRow, LineHighlightSpec>,
3147 snapshot: &EditorSnapshot,
3148 window: &mut Window,
3149 cx: &mut App,
3150 ) -> Vec<Option<AnyElement>> {
3151 let include_fold_statuses = EditorSettings::get_global(cx).gutter.folds
3152 && snapshot.mode.is_full()
3153 && self.editor.read(cx).is_singleton(cx);
3154 if include_fold_statuses {
3155 row_infos
3156 .into_iter()
3157 .enumerate()
3158 .map(|(ix, info)| {
3159 if info.expand_info.is_some() {
3160 return None;
3161 }
3162 let row = info.multibuffer_row?;
3163 let display_row = DisplayRow(rows.start.0 + ix as u32);
3164 let active = active_rows.contains_key(&display_row);
3165
3166 snapshot.render_crease_toggle(row, active, self.editor.clone(), window, cx)
3167 })
3168 .collect()
3169 } else {
3170 Vec::new()
3171 }
3172 }
3173
3174 fn layout_crease_trailers(
3175 &self,
3176 buffer_rows: impl IntoIterator<Item = RowInfo>,
3177 snapshot: &EditorSnapshot,
3178 window: &mut Window,
3179 cx: &mut App,
3180 ) -> Vec<Option<AnyElement>> {
3181 buffer_rows
3182 .into_iter()
3183 .map(|row_info| {
3184 if row_info.expand_info.is_some() {
3185 return None;
3186 }
3187 if let Some(row) = row_info.multibuffer_row {
3188 snapshot.render_crease_trailer(row, window, cx)
3189 } else {
3190 None
3191 }
3192 })
3193 .collect()
3194 }
3195
3196 fn layout_lines(
3197 rows: Range<DisplayRow>,
3198 snapshot: &EditorSnapshot,
3199 style: &EditorStyle,
3200 editor_width: Pixels,
3201 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3202 window: &mut Window,
3203 cx: &mut App,
3204 ) -> Vec<LineWithInvisibles> {
3205 if rows.start >= rows.end {
3206 return Vec::new();
3207 }
3208
3209 // Show the placeholder when the editor is empty
3210 if snapshot.is_empty() {
3211 let font_size = style.text.font_size.to_pixels(window.rem_size());
3212 let placeholder_color = cx.theme().colors().text_placeholder;
3213 let placeholder_text = snapshot.placeholder_text();
3214
3215 let placeholder_lines = placeholder_text
3216 .as_ref()
3217 .map_or("", AsRef::as_ref)
3218 .split('\n')
3219 .skip(rows.start.0 as usize)
3220 .chain(iter::repeat(""))
3221 .take(rows.len());
3222 placeholder_lines
3223 .map(move |line| {
3224 let run = TextRun {
3225 len: line.len(),
3226 font: style.text.font(),
3227 color: placeholder_color,
3228 background_color: None,
3229 underline: None,
3230 strikethrough: None,
3231 };
3232 let line =
3233 window
3234 .text_system()
3235 .shape_line(line.to_string().into(), font_size, &[run]);
3236 LineWithInvisibles {
3237 width: line.width,
3238 len: line.len,
3239 fragments: smallvec![LineFragment::Text(line)],
3240 invisibles: Vec::new(),
3241 font_size,
3242 }
3243 })
3244 .collect()
3245 } else {
3246 let chunks = snapshot.highlighted_chunks(rows.clone(), true, style);
3247 LineWithInvisibles::from_chunks(
3248 chunks,
3249 &style,
3250 MAX_LINE_LEN,
3251 rows.len(),
3252 &snapshot.mode,
3253 editor_width,
3254 is_row_soft_wrapped,
3255 window,
3256 cx,
3257 )
3258 }
3259 }
3260
3261 fn prepaint_lines(
3262 &self,
3263 start_row: DisplayRow,
3264 line_layouts: &mut [LineWithInvisibles],
3265 line_height: Pixels,
3266 scroll_pixel_position: gpui::Point<Pixels>,
3267 content_origin: gpui::Point<Pixels>,
3268 window: &mut Window,
3269 cx: &mut App,
3270 ) -> SmallVec<[AnyElement; 1]> {
3271 let mut line_elements = SmallVec::new();
3272 for (ix, line) in line_layouts.iter_mut().enumerate() {
3273 let row = start_row + DisplayRow(ix as u32);
3274 line.prepaint(
3275 line_height,
3276 scroll_pixel_position,
3277 row,
3278 content_origin,
3279 &mut line_elements,
3280 window,
3281 cx,
3282 );
3283 }
3284 line_elements
3285 }
3286
3287 fn render_block(
3288 &self,
3289 block: &Block,
3290 available_width: AvailableSpace,
3291 block_id: BlockId,
3292 block_row_start: DisplayRow,
3293 snapshot: &EditorSnapshot,
3294 text_x: Pixels,
3295 rows: &Range<DisplayRow>,
3296 line_layouts: &[LineWithInvisibles],
3297 editor_margins: &EditorMargins,
3298 line_height: Pixels,
3299 em_width: Pixels,
3300 text_hitbox: &Hitbox,
3301 editor_width: Pixels,
3302 scroll_width: &mut Pixels,
3303 resized_blocks: &mut HashMap<CustomBlockId, u32>,
3304 row_block_types: &mut HashMap<DisplayRow, bool>,
3305 selections: &[Selection<Point>],
3306 selected_buffer_ids: &Vec<BufferId>,
3307 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3308 sticky_header_excerpt_id: Option<ExcerptId>,
3309 window: &mut Window,
3310 cx: &mut App,
3311 ) -> Option<(AnyElement, Size<Pixels>, DisplayRow, Pixels)> {
3312 let mut x_position = None;
3313 let mut element = match block {
3314 Block::Custom(custom) => {
3315 let block_start = custom.start().to_point(&snapshot.buffer_snapshot);
3316 let block_end = custom.end().to_point(&snapshot.buffer_snapshot);
3317 if block.place_near() && snapshot.is_line_folded(MultiBufferRow(block_start.row)) {
3318 return None;
3319 }
3320 let align_to = block_start.to_display_point(snapshot);
3321 let x_and_width = |layout: &LineWithInvisibles| {
3322 Some((
3323 text_x + layout.x_for_index(align_to.column() as usize),
3324 text_x + layout.width,
3325 ))
3326 };
3327 let line_ix = align_to.row().0.checked_sub(rows.start.0);
3328 x_position =
3329 if let Some(layout) = line_ix.and_then(|ix| line_layouts.get(ix as usize)) {
3330 x_and_width(&layout)
3331 } else {
3332 x_and_width(&layout_line(
3333 align_to.row(),
3334 snapshot,
3335 &self.style,
3336 editor_width,
3337 is_row_soft_wrapped,
3338 window,
3339 cx,
3340 ))
3341 };
3342
3343 let anchor_x = x_position.unwrap().0;
3344
3345 let selected = selections
3346 .binary_search_by(|selection| {
3347 if selection.end <= block_start {
3348 Ordering::Less
3349 } else if selection.start >= block_end {
3350 Ordering::Greater
3351 } else {
3352 Ordering::Equal
3353 }
3354 })
3355 .is_ok();
3356
3357 div()
3358 .size_full()
3359 .children(
3360 (!snapshot.mode.is_minimap() || custom.render_in_minimap).then(|| {
3361 custom.render(&mut BlockContext {
3362 window,
3363 app: cx,
3364 anchor_x,
3365 margins: editor_margins,
3366 line_height,
3367 em_width,
3368 block_id,
3369 selected,
3370 max_width: text_hitbox.size.width.max(*scroll_width),
3371 editor_style: &self.style,
3372 })
3373 }),
3374 )
3375 .into_any()
3376 }
3377
3378 Block::FoldedBuffer {
3379 first_excerpt,
3380 height,
3381 ..
3382 } => {
3383 let selected = selected_buffer_ids.contains(&first_excerpt.buffer_id);
3384 let result = v_flex().id(block_id).w_full().pr(editor_margins.right);
3385
3386 let jump_data = header_jump_data(snapshot, block_row_start, *height, first_excerpt);
3387 result
3388 .child(self.render_buffer_header(
3389 first_excerpt,
3390 true,
3391 selected,
3392 false,
3393 jump_data,
3394 window,
3395 cx,
3396 ))
3397 .into_any_element()
3398 }
3399
3400 Block::ExcerptBoundary {
3401 excerpt,
3402 height,
3403 starts_new_buffer,
3404 ..
3405 } => {
3406 let color = cx.theme().colors().clone();
3407 let mut result = v_flex().id(block_id).w_full();
3408
3409 let jump_data = header_jump_data(snapshot, block_row_start, *height, excerpt);
3410
3411 if *starts_new_buffer {
3412 if sticky_header_excerpt_id != Some(excerpt.id) {
3413 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3414
3415 result = result.child(div().pr(editor_margins.right).child(
3416 self.render_buffer_header(
3417 excerpt, false, selected, false, jump_data, window, cx,
3418 ),
3419 ));
3420 } else {
3421 result =
3422 result.child(div().h(FILE_HEADER_HEIGHT as f32 * window.line_height()));
3423 }
3424 } else {
3425 result = result.child(
3426 h_flex().relative().child(
3427 div()
3428 .top(line_height / 2.)
3429 .absolute()
3430 .w_full()
3431 .h_px()
3432 .bg(color.border_variant),
3433 ),
3434 );
3435 };
3436
3437 result.into_any()
3438 }
3439 };
3440
3441 // Discover the element's content height, then round up to the nearest multiple of line height.
3442 let preliminary_size = element.layout_as_root(
3443 size(available_width, AvailableSpace::MinContent),
3444 window,
3445 cx,
3446 );
3447 let quantized_height = (preliminary_size.height / line_height).ceil() * line_height;
3448 let final_size = if preliminary_size.height == quantized_height {
3449 preliminary_size
3450 } else {
3451 element.layout_as_root(size(available_width, quantized_height.into()), window, cx)
3452 };
3453 let mut element_height_in_lines = ((final_size.height / line_height).ceil() as u32).max(1);
3454
3455 let mut row = block_row_start;
3456 let mut x_offset = px(0.);
3457 let mut is_block = true;
3458
3459 if let BlockId::Custom(custom_block_id) = block_id {
3460 if block.has_height() {
3461 if block.place_near() {
3462 if let Some((x_target, line_width)) = x_position {
3463 let margin = em_width * 2;
3464 if line_width + final_size.width + margin
3465 < editor_width + editor_margins.gutter.full_width()
3466 && !row_block_types.contains_key(&(row - 1))
3467 && element_height_in_lines == 1
3468 {
3469 x_offset = line_width + margin;
3470 row = row - 1;
3471 is_block = false;
3472 element_height_in_lines = 0;
3473 row_block_types.insert(row, is_block);
3474 } else {
3475 let max_offset = editor_width + editor_margins.gutter.full_width()
3476 - final_size.width;
3477 let min_offset = (x_target + em_width - final_size.width)
3478 .max(editor_margins.gutter.full_width());
3479 x_offset = x_target.min(max_offset).max(min_offset);
3480 }
3481 }
3482 };
3483 if element_height_in_lines != block.height() {
3484 resized_blocks.insert(custom_block_id, element_height_in_lines);
3485 }
3486 }
3487 }
3488 for i in 0..element_height_in_lines {
3489 row_block_types.insert(row + i, is_block);
3490 }
3491
3492 Some((element, final_size, row, x_offset))
3493 }
3494
3495 fn render_buffer_header(
3496 &self,
3497 for_excerpt: &ExcerptInfo,
3498 is_folded: bool,
3499 is_selected: bool,
3500 is_sticky: bool,
3501 jump_data: JumpData,
3502 window: &mut Window,
3503 cx: &mut App,
3504 ) -> Div {
3505 let editor = self.editor.read(cx);
3506 let file_status = editor
3507 .buffer
3508 .read(cx)
3509 .all_diff_hunks_expanded()
3510 .then(|| {
3511 editor
3512 .project
3513 .as_ref()?
3514 .read(cx)
3515 .status_for_buffer_id(for_excerpt.buffer_id, cx)
3516 })
3517 .flatten();
3518
3519 let include_root = editor
3520 .project
3521 .as_ref()
3522 .map(|project| project.read(cx).visible_worktrees(cx).count() > 1)
3523 .unwrap_or_default();
3524 let can_open_excerpts = Editor::can_open_excerpts_in_file(for_excerpt.buffer.file());
3525 let path = for_excerpt.buffer.resolve_file_path(cx, include_root);
3526 let filename = path
3527 .as_ref()
3528 .and_then(|path| Some(path.file_name()?.to_string_lossy().to_string()));
3529 let parent_path = path.as_ref().and_then(|path| {
3530 Some(path.parent()?.to_string_lossy().to_string() + std::path::MAIN_SEPARATOR_STR)
3531 });
3532 let focus_handle = editor.focus_handle(cx);
3533 let colors = cx.theme().colors();
3534
3535 div()
3536 .p_1()
3537 .w_full()
3538 .h(FILE_HEADER_HEIGHT as f32 * window.line_height())
3539 .child(
3540 h_flex()
3541 .size_full()
3542 .gap_2()
3543 .flex_basis(Length::Definite(DefiniteLength::Fraction(0.667)))
3544 .pl_0p5()
3545 .pr_5()
3546 .rounded_sm()
3547 .when(is_sticky, |el| el.shadow_md())
3548 .border_1()
3549 .map(|div| {
3550 let border_color = if is_selected
3551 && is_folded
3552 && focus_handle.contains_focused(window, cx)
3553 {
3554 colors.border_focused
3555 } else {
3556 colors.border
3557 };
3558 div.border_color(border_color)
3559 })
3560 .bg(colors.editor_subheader_background)
3561 .hover(|style| style.bg(colors.element_hover))
3562 .map(|header| {
3563 let editor = self.editor.clone();
3564 let buffer_id = for_excerpt.buffer_id;
3565 let toggle_chevron_icon =
3566 FileIcons::get_chevron_icon(!is_folded, cx).map(Icon::from_path);
3567 header.child(
3568 div()
3569 .hover(|style| style.bg(colors.element_selected))
3570 .rounded_xs()
3571 .child(
3572 ButtonLike::new("toggle-buffer-fold")
3573 .style(ui::ButtonStyle::Transparent)
3574 .height(px(28.).into())
3575 .width(px(28.).into())
3576 .children(toggle_chevron_icon)
3577 .tooltip({
3578 let focus_handle = focus_handle.clone();
3579 move |window, cx| {
3580 Tooltip::for_action_in(
3581 "Toggle Excerpt Fold",
3582 &ToggleFold,
3583 &focus_handle,
3584 window,
3585 cx,
3586 )
3587 }
3588 })
3589 .on_click(move |_, _, cx| {
3590 if is_folded {
3591 editor.update(cx, |editor, cx| {
3592 editor.unfold_buffer(buffer_id, cx);
3593 });
3594 } else {
3595 editor.update(cx, |editor, cx| {
3596 editor.fold_buffer(buffer_id, cx);
3597 });
3598 }
3599 }),
3600 ),
3601 )
3602 })
3603 .children(
3604 editor
3605 .addons
3606 .values()
3607 .filter_map(|addon| {
3608 addon.render_buffer_header_controls(for_excerpt, window, cx)
3609 })
3610 .take(1),
3611 )
3612 .child(
3613 h_flex()
3614 .cursor_pointer()
3615 .id("path header block")
3616 .size_full()
3617 .justify_between()
3618 .child(
3619 h_flex()
3620 .gap_2()
3621 .child(
3622 Label::new(
3623 filename
3624 .map(SharedString::from)
3625 .unwrap_or_else(|| "untitled".into()),
3626 )
3627 .single_line()
3628 .when_some(
3629 file_status,
3630 |el, status| {
3631 el.color(if status.is_conflicted() {
3632 Color::Conflict
3633 } else if status.is_modified() {
3634 Color::Modified
3635 } else if status.is_deleted() {
3636 Color::Disabled
3637 } else {
3638 Color::Created
3639 })
3640 .when(status.is_deleted(), |el| el.strikethrough())
3641 },
3642 ),
3643 )
3644 .when_some(parent_path, |then, path| {
3645 then.child(div().child(path).text_color(
3646 if file_status.is_some_and(FileStatus::is_deleted) {
3647 colors.text_disabled
3648 } else {
3649 colors.text_muted
3650 },
3651 ))
3652 }),
3653 )
3654 .when(can_open_excerpts && is_selected && path.is_some(), |el| {
3655 el.child(
3656 h_flex()
3657 .id("jump-to-file-button")
3658 .gap_2p5()
3659 .child(Label::new("Jump To File"))
3660 .children(
3661 KeyBinding::for_action_in(
3662 &OpenExcerpts,
3663 &focus_handle,
3664 window,
3665 cx,
3666 )
3667 .map(|binding| binding.into_any_element()),
3668 ),
3669 )
3670 })
3671 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
3672 .on_click(window.listener_for(&self.editor, {
3673 move |editor, e: &ClickEvent, window, cx| {
3674 editor.open_excerpts_common(
3675 Some(jump_data.clone()),
3676 e.down.modifiers.secondary(),
3677 window,
3678 cx,
3679 );
3680 }
3681 })),
3682 ),
3683 )
3684 }
3685
3686 fn render_blocks(
3687 &self,
3688 rows: Range<DisplayRow>,
3689 snapshot: &EditorSnapshot,
3690 hitbox: &Hitbox,
3691 text_hitbox: &Hitbox,
3692 editor_width: Pixels,
3693 scroll_width: &mut Pixels,
3694 editor_margins: &EditorMargins,
3695 em_width: Pixels,
3696 text_x: Pixels,
3697 line_height: Pixels,
3698 line_layouts: &mut [LineWithInvisibles],
3699 selections: &[Selection<Point>],
3700 selected_buffer_ids: &Vec<BufferId>,
3701 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
3702 sticky_header_excerpt_id: Option<ExcerptId>,
3703 window: &mut Window,
3704 cx: &mut App,
3705 ) -> Result<(Vec<BlockLayout>, HashMap<DisplayRow, bool>), HashMap<CustomBlockId, u32>> {
3706 let (fixed_blocks, non_fixed_blocks) = snapshot
3707 .blocks_in_range(rows.clone())
3708 .partition::<Vec<_>, _>(|(_, block)| block.style() == BlockStyle::Fixed);
3709
3710 let mut focused_block = self
3711 .editor
3712 .update(cx, |editor, _| editor.take_focused_block());
3713 let mut fixed_block_max_width = Pixels::ZERO;
3714 let mut blocks = Vec::new();
3715 let mut resized_blocks = HashMap::default();
3716 let mut row_block_types = HashMap::default();
3717
3718 for (row, block) in fixed_blocks {
3719 let block_id = block.id();
3720
3721 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3722 focused_block = None;
3723 }
3724
3725 if let Some((element, element_size, row, x_offset)) = self.render_block(
3726 block,
3727 AvailableSpace::MinContent,
3728 block_id,
3729 row,
3730 snapshot,
3731 text_x,
3732 &rows,
3733 line_layouts,
3734 editor_margins,
3735 line_height,
3736 em_width,
3737 text_hitbox,
3738 editor_width,
3739 scroll_width,
3740 &mut resized_blocks,
3741 &mut row_block_types,
3742 selections,
3743 selected_buffer_ids,
3744 is_row_soft_wrapped,
3745 sticky_header_excerpt_id,
3746 window,
3747 cx,
3748 ) {
3749 fixed_block_max_width = fixed_block_max_width.max(element_size.width + em_width);
3750 blocks.push(BlockLayout {
3751 id: block_id,
3752 x_offset,
3753 row: Some(row),
3754 element,
3755 available_space: size(AvailableSpace::MinContent, element_size.height.into()),
3756 style: BlockStyle::Fixed,
3757 overlaps_gutter: true,
3758 is_buffer_header: block.is_buffer_header(),
3759 });
3760 }
3761 }
3762
3763 for (row, block) in non_fixed_blocks {
3764 let style = block.style();
3765 let width = match (style, block.place_near()) {
3766 (_, true) => AvailableSpace::MinContent,
3767 (BlockStyle::Sticky, _) => hitbox.size.width.into(),
3768 (BlockStyle::Flex, _) => hitbox
3769 .size
3770 .width
3771 .max(fixed_block_max_width)
3772 .max(editor_margins.gutter.width + *scroll_width)
3773 .into(),
3774 (BlockStyle::Fixed, _) => unreachable!(),
3775 };
3776 let block_id = block.id();
3777
3778 if focused_block.as_ref().map_or(false, |b| b.id == block_id) {
3779 focused_block = None;
3780 }
3781
3782 if let Some((element, element_size, row, x_offset)) = self.render_block(
3783 block,
3784 width,
3785 block_id,
3786 row,
3787 snapshot,
3788 text_x,
3789 &rows,
3790 line_layouts,
3791 editor_margins,
3792 line_height,
3793 em_width,
3794 text_hitbox,
3795 editor_width,
3796 scroll_width,
3797 &mut resized_blocks,
3798 &mut row_block_types,
3799 selections,
3800 selected_buffer_ids,
3801 is_row_soft_wrapped,
3802 sticky_header_excerpt_id,
3803 window,
3804 cx,
3805 ) {
3806 blocks.push(BlockLayout {
3807 id: block_id,
3808 x_offset,
3809 row: Some(row),
3810 element,
3811 available_space: size(width, element_size.height.into()),
3812 style,
3813 overlaps_gutter: !block.place_near(),
3814 is_buffer_header: block.is_buffer_header(),
3815 });
3816 }
3817 }
3818
3819 if let Some(focused_block) = focused_block {
3820 if let Some(focus_handle) = focused_block.focus_handle.upgrade() {
3821 if focus_handle.is_focused(window) {
3822 if let Some(block) = snapshot.block_for_id(focused_block.id) {
3823 let style = block.style();
3824 let width = match style {
3825 BlockStyle::Fixed => AvailableSpace::MinContent,
3826 BlockStyle::Flex => AvailableSpace::Definite(
3827 hitbox
3828 .size
3829 .width
3830 .max(fixed_block_max_width)
3831 .max(editor_margins.gutter.width + *scroll_width),
3832 ),
3833 BlockStyle::Sticky => AvailableSpace::Definite(hitbox.size.width),
3834 };
3835
3836 if let Some((element, element_size, _, x_offset)) = self.render_block(
3837 &block,
3838 width,
3839 focused_block.id,
3840 rows.end,
3841 snapshot,
3842 text_x,
3843 &rows,
3844 line_layouts,
3845 editor_margins,
3846 line_height,
3847 em_width,
3848 text_hitbox,
3849 editor_width,
3850 scroll_width,
3851 &mut resized_blocks,
3852 &mut row_block_types,
3853 selections,
3854 selected_buffer_ids,
3855 is_row_soft_wrapped,
3856 sticky_header_excerpt_id,
3857 window,
3858 cx,
3859 ) {
3860 blocks.push(BlockLayout {
3861 id: block.id(),
3862 x_offset,
3863 row: None,
3864 element,
3865 available_space: size(width, element_size.height.into()),
3866 style,
3867 overlaps_gutter: true,
3868 is_buffer_header: block.is_buffer_header(),
3869 });
3870 }
3871 }
3872 }
3873 }
3874 }
3875
3876 if resized_blocks.is_empty() {
3877 *scroll_width =
3878 (*scroll_width).max(fixed_block_max_width - editor_margins.gutter.width);
3879 Ok((blocks, row_block_types))
3880 } else {
3881 Err(resized_blocks)
3882 }
3883 }
3884
3885 fn layout_blocks(
3886 &self,
3887 blocks: &mut Vec<BlockLayout>,
3888 hitbox: &Hitbox,
3889 line_height: Pixels,
3890 scroll_pixel_position: gpui::Point<Pixels>,
3891 window: &mut Window,
3892 cx: &mut App,
3893 ) {
3894 for block in blocks {
3895 let mut origin = if let Some(row) = block.row {
3896 hitbox.origin
3897 + point(
3898 block.x_offset,
3899 row.as_f32() * line_height - scroll_pixel_position.y,
3900 )
3901 } else {
3902 // Position the block outside the visible area
3903 hitbox.origin + point(Pixels::ZERO, hitbox.size.height)
3904 };
3905
3906 if !matches!(block.style, BlockStyle::Sticky) {
3907 origin += point(-scroll_pixel_position.x, Pixels::ZERO);
3908 }
3909
3910 let focus_handle =
3911 block
3912 .element
3913 .prepaint_as_root(origin, block.available_space, window, cx);
3914
3915 if let Some(focus_handle) = focus_handle {
3916 self.editor.update(cx, |editor, _cx| {
3917 editor.set_focused_block(FocusedBlock {
3918 id: block.id,
3919 focus_handle: focus_handle.downgrade(),
3920 });
3921 });
3922 }
3923 }
3924 }
3925
3926 fn layout_sticky_buffer_header(
3927 &self,
3928 StickyHeaderExcerpt { excerpt }: StickyHeaderExcerpt<'_>,
3929 scroll_position: f32,
3930 line_height: Pixels,
3931 right_margin: Pixels,
3932 snapshot: &EditorSnapshot,
3933 hitbox: &Hitbox,
3934 selected_buffer_ids: &Vec<BufferId>,
3935 blocks: &[BlockLayout],
3936 window: &mut Window,
3937 cx: &mut App,
3938 ) -> AnyElement {
3939 let jump_data = header_jump_data(
3940 snapshot,
3941 DisplayRow(scroll_position as u32),
3942 FILE_HEADER_HEIGHT + MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
3943 excerpt,
3944 );
3945
3946 let editor_bg_color = cx.theme().colors().editor_background;
3947
3948 let selected = selected_buffer_ids.contains(&excerpt.buffer_id);
3949
3950 let available_width = hitbox.bounds.size.width - right_margin;
3951
3952 let mut header = v_flex()
3953 .relative()
3954 .child(
3955 div()
3956 .w(available_width)
3957 .h(FILE_HEADER_HEIGHT as f32 * line_height)
3958 .bg(linear_gradient(
3959 0.,
3960 linear_color_stop(editor_bg_color.opacity(0.), 0.),
3961 linear_color_stop(editor_bg_color, 0.6),
3962 ))
3963 .absolute()
3964 .top_0(),
3965 )
3966 .child(
3967 self.render_buffer_header(excerpt, false, selected, true, jump_data, window, cx)
3968 .into_any_element(),
3969 )
3970 .into_any_element();
3971
3972 let mut origin = hitbox.origin;
3973 // Move floating header up to avoid colliding with the next buffer header.
3974 for block in blocks.iter() {
3975 if !block.is_buffer_header {
3976 continue;
3977 }
3978
3979 let Some(display_row) = block.row.filter(|row| row.0 > scroll_position as u32) else {
3980 continue;
3981 };
3982
3983 let max_row = display_row.0.saturating_sub(FILE_HEADER_HEIGHT);
3984 let offset = scroll_position - max_row as f32;
3985
3986 if offset > 0.0 {
3987 origin.y -= offset * line_height;
3988 }
3989 break;
3990 }
3991
3992 let size = size(
3993 AvailableSpace::Definite(available_width),
3994 AvailableSpace::MinContent,
3995 );
3996
3997 header.prepaint_as_root(origin, size, window, cx);
3998
3999 header
4000 }
4001
4002 fn layout_cursor_popovers(
4003 &self,
4004 line_height: Pixels,
4005 text_hitbox: &Hitbox,
4006 content_origin: gpui::Point<Pixels>,
4007 right_margin: Pixels,
4008 start_row: DisplayRow,
4009 scroll_pixel_position: gpui::Point<Pixels>,
4010 line_layouts: &[LineWithInvisibles],
4011 cursor: DisplayPoint,
4012 cursor_point: Point,
4013 style: &EditorStyle,
4014 window: &mut Window,
4015 cx: &mut App,
4016 ) -> Option<ContextMenuLayout> {
4017 let mut min_menu_height = Pixels::ZERO;
4018 let mut max_menu_height = Pixels::ZERO;
4019 let mut height_above_menu = Pixels::ZERO;
4020 let height_below_menu = Pixels::ZERO;
4021 let mut edit_prediction_popover_visible = false;
4022 let mut context_menu_visible = false;
4023 let context_menu_placement;
4024
4025 {
4026 let editor = self.editor.read(cx);
4027 if editor
4028 .edit_prediction_visible_in_cursor_popover(editor.has_active_inline_completion())
4029 {
4030 height_above_menu +=
4031 editor.edit_prediction_cursor_popover_height() + POPOVER_Y_PADDING;
4032 edit_prediction_popover_visible = true;
4033 }
4034
4035 if editor.context_menu_visible() {
4036 if let Some(crate::ContextMenuOrigin::Cursor) = editor.context_menu_origin() {
4037 let (min_height_in_lines, max_height_in_lines) = editor
4038 .context_menu_options
4039 .as_ref()
4040 .map_or((3, 12), |options| {
4041 (options.min_entries_visible, options.max_entries_visible)
4042 });
4043
4044 min_menu_height += line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4045 max_menu_height += line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4046 context_menu_visible = true;
4047 }
4048 }
4049 context_menu_placement = editor
4050 .context_menu_options
4051 .as_ref()
4052 .and_then(|options| options.placement.clone());
4053 }
4054
4055 let visible = edit_prediction_popover_visible || context_menu_visible;
4056 if !visible {
4057 return None;
4058 }
4059
4060 let cursor_row_layout = &line_layouts[cursor.row().minus(start_row) as usize];
4061 let target_position = content_origin
4062 + gpui::Point {
4063 x: cmp::max(
4064 px(0.),
4065 cursor_row_layout.x_for_index(cursor.column() as usize)
4066 - scroll_pixel_position.x,
4067 ),
4068 y: cmp::max(
4069 px(0.),
4070 cursor.row().next_row().as_f32() * line_height - scroll_pixel_position.y,
4071 ),
4072 };
4073
4074 let viewport_bounds =
4075 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4076 right: -right_margin - MENU_GAP,
4077 ..Default::default()
4078 });
4079
4080 let min_height = height_above_menu + min_menu_height + height_below_menu;
4081 let max_height = height_above_menu + max_menu_height + height_below_menu;
4082 let (laid_out_popovers, y_flipped) = self.layout_popovers_above_or_below_line(
4083 target_position,
4084 line_height,
4085 min_height,
4086 max_height,
4087 context_menu_placement,
4088 text_hitbox,
4089 viewport_bounds,
4090 window,
4091 cx,
4092 |height, max_width_for_stable_x, y_flipped, window, cx| {
4093 // First layout the menu to get its size - others can be at least this wide.
4094 let context_menu = if context_menu_visible {
4095 let menu_height = if y_flipped {
4096 height - height_below_menu
4097 } else {
4098 height - height_above_menu
4099 };
4100 let mut element = self
4101 .render_context_menu(line_height, menu_height, window, cx)
4102 .expect("Visible context menu should always render.");
4103 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4104 Some((CursorPopoverType::CodeContextMenu, element, size))
4105 } else {
4106 None
4107 };
4108 let min_width = context_menu
4109 .as_ref()
4110 .map_or(px(0.), |(_, _, size)| size.width);
4111 let max_width = max_width_for_stable_x.max(
4112 context_menu
4113 .as_ref()
4114 .map_or(px(0.), |(_, _, size)| size.width),
4115 );
4116
4117 let edit_prediction = if edit_prediction_popover_visible {
4118 self.editor.update(cx, move |editor, cx| {
4119 let accept_binding =
4120 editor.accept_edit_prediction_keybind(false, window, cx);
4121 let mut element = editor.render_edit_prediction_cursor_popover(
4122 min_width,
4123 max_width,
4124 cursor_point,
4125 style,
4126 accept_binding.keystroke(),
4127 window,
4128 cx,
4129 )?;
4130 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4131 Some((CursorPopoverType::EditPrediction, element, size))
4132 })
4133 } else {
4134 None
4135 };
4136 vec![edit_prediction, context_menu]
4137 .into_iter()
4138 .flatten()
4139 .collect::<Vec<_>>()
4140 },
4141 )?;
4142
4143 let (menu_ix, (_, menu_bounds)) = laid_out_popovers
4144 .iter()
4145 .find_position(|(x, _)| matches!(x, CursorPopoverType::CodeContextMenu))?;
4146 let last_ix = laid_out_popovers.len() - 1;
4147 let menu_is_last = menu_ix == last_ix;
4148 let first_popover_bounds = laid_out_popovers[0].1;
4149 let last_popover_bounds = laid_out_popovers[last_ix].1;
4150
4151 // Bounds to layout the aside around. When y_flipped, the aside goes either above or to the
4152 // right, and otherwise it goes below or to the right.
4153 let mut target_bounds = Bounds::from_corners(
4154 first_popover_bounds.origin,
4155 last_popover_bounds.bottom_right(),
4156 );
4157 target_bounds.size.width = menu_bounds.size.width;
4158
4159 // Like `target_bounds`, but with the max height it could occupy. Choosing an aside position
4160 // based on this is preferred for layout stability.
4161 let mut max_target_bounds = target_bounds;
4162 max_target_bounds.size.height = max_height;
4163 if y_flipped {
4164 max_target_bounds.origin.y -= max_height - target_bounds.size.height;
4165 }
4166
4167 // Add spacing around `target_bounds` and `max_target_bounds`.
4168 let mut extend_amount = Edges::all(MENU_GAP);
4169 if y_flipped {
4170 extend_amount.bottom = line_height;
4171 } else {
4172 extend_amount.top = line_height;
4173 }
4174 let target_bounds = target_bounds.extend(extend_amount);
4175 let max_target_bounds = max_target_bounds.extend(extend_amount);
4176
4177 let must_place_above_or_below =
4178 if y_flipped && !menu_is_last && menu_bounds.size.height < max_menu_height {
4179 laid_out_popovers[menu_ix + 1..]
4180 .iter()
4181 .any(|(_, popover_bounds)| popover_bounds.size.width > menu_bounds.size.width)
4182 } else {
4183 false
4184 };
4185
4186 let aside_bounds = self.layout_context_menu_aside(
4187 y_flipped,
4188 *menu_bounds,
4189 target_bounds,
4190 max_target_bounds,
4191 max_menu_height,
4192 must_place_above_or_below,
4193 text_hitbox,
4194 viewport_bounds,
4195 window,
4196 cx,
4197 );
4198
4199 if let Some(menu_bounds) = laid_out_popovers.iter().find_map(|(popover_type, bounds)| {
4200 if matches!(popover_type, CursorPopoverType::CodeContextMenu) {
4201 Some(*bounds)
4202 } else {
4203 None
4204 }
4205 }) {
4206 let bounds = if let Some(aside_bounds) = aside_bounds {
4207 menu_bounds.union(&aside_bounds)
4208 } else {
4209 menu_bounds
4210 };
4211 return Some(ContextMenuLayout { y_flipped, bounds });
4212 }
4213
4214 None
4215 }
4216
4217 fn layout_gutter_menu(
4218 &self,
4219 line_height: Pixels,
4220 text_hitbox: &Hitbox,
4221 content_origin: gpui::Point<Pixels>,
4222 right_margin: Pixels,
4223 scroll_pixel_position: gpui::Point<Pixels>,
4224 gutter_overshoot: Pixels,
4225 window: &mut Window,
4226 cx: &mut App,
4227 ) {
4228 let editor = self.editor.read(cx);
4229 if !editor.context_menu_visible() {
4230 return;
4231 }
4232 let Some(crate::ContextMenuOrigin::GutterIndicator(gutter_row)) =
4233 editor.context_menu_origin()
4234 else {
4235 return;
4236 };
4237 // Context menu was spawned via a click on a gutter. Ensure it's a bit closer to the
4238 // indicator than just a plain first column of the text field.
4239 let target_position = content_origin
4240 + gpui::Point {
4241 x: -gutter_overshoot,
4242 y: gutter_row.next_row().as_f32() * line_height - scroll_pixel_position.y,
4243 };
4244
4245 let (min_height_in_lines, max_height_in_lines) = editor
4246 .context_menu_options
4247 .as_ref()
4248 .map_or((3, 12), |options| {
4249 (options.min_entries_visible, options.max_entries_visible)
4250 });
4251
4252 let min_height = line_height * min_height_in_lines as f32 + POPOVER_Y_PADDING;
4253 let max_height = line_height * max_height_in_lines as f32 + POPOVER_Y_PADDING;
4254 let viewport_bounds =
4255 Bounds::new(Default::default(), window.viewport_size()).extend(Edges {
4256 right: -right_margin - MENU_GAP,
4257 ..Default::default()
4258 });
4259 self.layout_popovers_above_or_below_line(
4260 target_position,
4261 line_height,
4262 min_height,
4263 max_height,
4264 editor
4265 .context_menu_options
4266 .as_ref()
4267 .and_then(|options| options.placement.clone()),
4268 text_hitbox,
4269 viewport_bounds,
4270 window,
4271 cx,
4272 move |height, _max_width_for_stable_x, _, window, cx| {
4273 let mut element = self
4274 .render_context_menu(line_height, height, window, cx)
4275 .expect("Visible context menu should always render.");
4276 let size = element.layout_as_root(AvailableSpace::min_size(), window, cx);
4277 vec![(CursorPopoverType::CodeContextMenu, element, size)]
4278 },
4279 );
4280 }
4281
4282 fn layout_popovers_above_or_below_line(
4283 &self,
4284 target_position: gpui::Point<Pixels>,
4285 line_height: Pixels,
4286 min_height: Pixels,
4287 max_height: Pixels,
4288 placement: Option<ContextMenuPlacement>,
4289 text_hitbox: &Hitbox,
4290 viewport_bounds: Bounds<Pixels>,
4291 window: &mut Window,
4292 cx: &mut App,
4293 make_sized_popovers: impl FnOnce(
4294 Pixels,
4295 Pixels,
4296 bool,
4297 &mut Window,
4298 &mut App,
4299 ) -> Vec<(CursorPopoverType, AnyElement, Size<Pixels>)>,
4300 ) -> Option<(Vec<(CursorPopoverType, Bounds<Pixels>)>, bool)> {
4301 let text_style = TextStyleRefinement {
4302 line_height: Some(DefiniteLength::Fraction(
4303 BufferLineHeight::Comfortable.value(),
4304 )),
4305 ..Default::default()
4306 };
4307 window.with_text_style(Some(text_style), |window| {
4308 // If the max height won't fit below and there is more space above, put it above the line.
4309 let bottom_y_when_flipped = target_position.y - line_height;
4310 let available_above = bottom_y_when_flipped - text_hitbox.top();
4311 let available_below = text_hitbox.bottom() - target_position.y;
4312 let y_overflows_below = max_height > available_below;
4313 let mut y_flipped = match placement {
4314 Some(ContextMenuPlacement::Above) => true,
4315 Some(ContextMenuPlacement::Below) => false,
4316 None => y_overflows_below && available_above > available_below,
4317 };
4318 let mut height = cmp::min(
4319 max_height,
4320 if y_flipped {
4321 available_above
4322 } else {
4323 available_below
4324 },
4325 );
4326
4327 // If the min height doesn't fit within text bounds, instead fit within the window.
4328 if height < min_height {
4329 let available_above = bottom_y_when_flipped;
4330 let available_below = viewport_bounds.bottom() - target_position.y;
4331 let (y_flipped_override, height_override) = match placement {
4332 Some(ContextMenuPlacement::Above) => {
4333 (true, cmp::min(available_above, min_height))
4334 }
4335 Some(ContextMenuPlacement::Below) => {
4336 (false, cmp::min(available_below, min_height))
4337 }
4338 None => {
4339 if available_below > min_height {
4340 (false, min_height)
4341 } else if available_above > min_height {
4342 (true, min_height)
4343 } else if available_above > available_below {
4344 (true, available_above)
4345 } else {
4346 (false, available_below)
4347 }
4348 }
4349 };
4350 y_flipped = y_flipped_override;
4351 height = height_override;
4352 }
4353
4354 let max_width_for_stable_x = viewport_bounds.right() - target_position.x;
4355
4356 // TODO: Use viewport_bounds.width as a max width so that it doesn't get clipped on the left
4357 // for very narrow windows.
4358 let popovers =
4359 make_sized_popovers(height, max_width_for_stable_x, y_flipped, window, cx);
4360 if popovers.is_empty() {
4361 return None;
4362 }
4363
4364 let max_width = popovers
4365 .iter()
4366 .map(|(_, _, size)| size.width)
4367 .max()
4368 .unwrap_or_default();
4369
4370 let mut current_position = gpui::Point {
4371 // Snap the right edge of the list to the right edge of the window if its horizontal bounds
4372 // overflow. Include space for the scrollbar.
4373 x: target_position
4374 .x
4375 .min((viewport_bounds.right() - max_width).max(Pixels::ZERO)),
4376 y: if y_flipped {
4377 bottom_y_when_flipped
4378 } else {
4379 target_position.y
4380 },
4381 };
4382
4383 let mut laid_out_popovers = popovers
4384 .into_iter()
4385 .map(|(popover_type, element, size)| {
4386 if y_flipped {
4387 current_position.y -= size.height;
4388 }
4389 let position = current_position;
4390 window.defer_draw(element, current_position, 1);
4391 if !y_flipped {
4392 current_position.y += size.height + MENU_GAP;
4393 } else {
4394 current_position.y -= MENU_GAP;
4395 }
4396 (popover_type, Bounds::new(position, size))
4397 })
4398 .collect::<Vec<_>>();
4399
4400 if y_flipped {
4401 laid_out_popovers.reverse();
4402 }
4403
4404 Some((laid_out_popovers, y_flipped))
4405 })
4406 }
4407
4408 fn layout_context_menu_aside(
4409 &self,
4410 y_flipped: bool,
4411 menu_bounds: Bounds<Pixels>,
4412 target_bounds: Bounds<Pixels>,
4413 max_target_bounds: Bounds<Pixels>,
4414 max_height: Pixels,
4415 must_place_above_or_below: bool,
4416 text_hitbox: &Hitbox,
4417 viewport_bounds: Bounds<Pixels>,
4418 window: &mut Window,
4419 cx: &mut App,
4420 ) -> Option<Bounds<Pixels>> {
4421 let available_within_viewport = target_bounds.space_within(&viewport_bounds);
4422 let positioned_aside = if available_within_viewport.right >= MENU_ASIDE_MIN_WIDTH
4423 && !must_place_above_or_below
4424 {
4425 let max_width = cmp::min(
4426 available_within_viewport.right - px(1.),
4427 MENU_ASIDE_MAX_WIDTH,
4428 );
4429 let mut aside = self.render_context_menu_aside(
4430 size(max_width, max_height - POPOVER_Y_PADDING),
4431 window,
4432 cx,
4433 )?;
4434 let size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
4435 let right_position = point(target_bounds.right(), menu_bounds.origin.y);
4436 Some((aside, right_position, size))
4437 } else {
4438 let max_size = size(
4439 // TODO(mgsloan): Once the menu is bounded by viewport width the bound on viewport
4440 // won't be needed here.
4441 cmp::min(
4442 cmp::max(menu_bounds.size.width - px(2.), MENU_ASIDE_MIN_WIDTH),
4443 viewport_bounds.right(),
4444 ),
4445 cmp::min(
4446 max_height,
4447 cmp::max(
4448 available_within_viewport.top,
4449 available_within_viewport.bottom,
4450 ),
4451 ) - POPOVER_Y_PADDING,
4452 );
4453 let mut aside = self.render_context_menu_aside(max_size, window, cx)?;
4454 let actual_size = aside.layout_as_root(AvailableSpace::min_size(), window, cx);
4455
4456 let top_position = point(
4457 menu_bounds.origin.x,
4458 target_bounds.top() - actual_size.height,
4459 );
4460 let bottom_position = point(menu_bounds.origin.x, target_bounds.bottom());
4461
4462 let fit_within = |available: Edges<Pixels>, wanted: Size<Pixels>| {
4463 // Prefer to fit on the same side of the line as the menu, then on the other side of
4464 // the line.
4465 if !y_flipped && wanted.height < available.bottom {
4466 Some(bottom_position)
4467 } else if !y_flipped && wanted.height < available.top {
4468 Some(top_position)
4469 } else if y_flipped && wanted.height < available.top {
4470 Some(top_position)
4471 } else if y_flipped && wanted.height < available.bottom {
4472 Some(bottom_position)
4473 } else {
4474 None
4475 }
4476 };
4477
4478 // Prefer choosing a direction using max sizes rather than actual size for stability.
4479 let available_within_text = max_target_bounds.space_within(&text_hitbox.bounds);
4480 let wanted = size(MENU_ASIDE_MAX_WIDTH, max_height);
4481 let aside_position = fit_within(available_within_text, wanted)
4482 // Fallback: fit max size in window.
4483 .or_else(|| fit_within(max_target_bounds.space_within(&viewport_bounds), wanted))
4484 // Fallback: fit actual size in window.
4485 .or_else(|| fit_within(available_within_viewport, actual_size));
4486
4487 aside_position.map(|position| (aside, position, actual_size))
4488 };
4489
4490 // Skip drawing if it doesn't fit anywhere.
4491 if let Some((aside, position, size)) = positioned_aside {
4492 let aside_bounds = Bounds::new(position, size);
4493 window.defer_draw(aside, position, 2);
4494 return Some(aside_bounds);
4495 }
4496
4497 None
4498 }
4499
4500 fn render_context_menu(
4501 &self,
4502 line_height: Pixels,
4503 height: Pixels,
4504 window: &mut Window,
4505 cx: &mut App,
4506 ) -> Option<AnyElement> {
4507 let max_height_in_lines = ((height - POPOVER_Y_PADDING) / line_height).floor() as u32;
4508 self.editor.update(cx, |editor, cx| {
4509 editor.render_context_menu(&self.style, max_height_in_lines, window, cx)
4510 })
4511 }
4512
4513 fn render_context_menu_aside(
4514 &self,
4515 max_size: Size<Pixels>,
4516 window: &mut Window,
4517 cx: &mut App,
4518 ) -> Option<AnyElement> {
4519 if max_size.width < px(100.) || max_size.height < px(12.) {
4520 None
4521 } else {
4522 self.editor.update(cx, |editor, cx| {
4523 editor.render_context_menu_aside(max_size, window, cx)
4524 })
4525 }
4526 }
4527
4528 fn layout_mouse_context_menu(
4529 &self,
4530 editor_snapshot: &EditorSnapshot,
4531 visible_range: Range<DisplayRow>,
4532 content_origin: gpui::Point<Pixels>,
4533 window: &mut Window,
4534 cx: &mut App,
4535 ) -> Option<AnyElement> {
4536 let position = self.editor.update(cx, |editor, _cx| {
4537 let visible_start_point = editor.display_to_pixel_point(
4538 DisplayPoint::new(visible_range.start, 0),
4539 editor_snapshot,
4540 window,
4541 )?;
4542 let visible_end_point = editor.display_to_pixel_point(
4543 DisplayPoint::new(visible_range.end, 0),
4544 editor_snapshot,
4545 window,
4546 )?;
4547
4548 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4549 let (source_display_point, position) = match mouse_context_menu.position {
4550 MenuPosition::PinnedToScreen(point) => (None, point),
4551 MenuPosition::PinnedToEditor { source, offset } => {
4552 let source_display_point = source.to_display_point(editor_snapshot);
4553 let source_point = editor.to_pixel_point(source, editor_snapshot, window)?;
4554 let position = content_origin + source_point + offset;
4555 (Some(source_display_point), position)
4556 }
4557 };
4558
4559 let source_included = source_display_point.map_or(true, |source_display_point| {
4560 visible_range
4561 .to_inclusive()
4562 .contains(&source_display_point.row())
4563 });
4564 let position_included =
4565 visible_start_point.y <= position.y && position.y <= visible_end_point.y;
4566 if !source_included && !position_included {
4567 None
4568 } else {
4569 Some(position)
4570 }
4571 })?;
4572
4573 let text_style = TextStyleRefinement {
4574 line_height: Some(DefiniteLength::Fraction(
4575 BufferLineHeight::Comfortable.value(),
4576 )),
4577 ..Default::default()
4578 };
4579 window.with_text_style(Some(text_style), |window| {
4580 let mut element = self.editor.read_with(cx, |editor, _| {
4581 let mouse_context_menu = editor.mouse_context_menu.as_ref()?;
4582 let context_menu = mouse_context_menu.context_menu.clone();
4583
4584 Some(
4585 deferred(
4586 anchored()
4587 .position(position)
4588 .child(context_menu)
4589 .anchor(Corner::TopLeft)
4590 .snap_to_window_with_margin(px(8.)),
4591 )
4592 .with_priority(1)
4593 .into_any(),
4594 )
4595 })?;
4596
4597 element.prepaint_as_root(position, AvailableSpace::min_size(), window, cx);
4598 Some(element)
4599 })
4600 }
4601
4602 fn layout_hover_popovers(
4603 &self,
4604 snapshot: &EditorSnapshot,
4605 hitbox: &Hitbox,
4606 visible_display_row_range: Range<DisplayRow>,
4607 content_origin: gpui::Point<Pixels>,
4608 scroll_pixel_position: gpui::Point<Pixels>,
4609 line_layouts: &[LineWithInvisibles],
4610 line_height: Pixels,
4611 em_width: Pixels,
4612 context_menu_layout: Option<ContextMenuLayout>,
4613 window: &mut Window,
4614 cx: &mut App,
4615 ) {
4616 struct MeasuredHoverPopover {
4617 element: AnyElement,
4618 size: Size<Pixels>,
4619 horizontal_offset: Pixels,
4620 }
4621
4622 let max_size = size(
4623 (120. * em_width) // Default size
4624 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4625 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4626 (16. * line_height) // Default size
4627 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4628 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4629 );
4630
4631 let hover_popovers = self.editor.update(cx, |editor, cx| {
4632 editor.hover_state.render(
4633 snapshot,
4634 visible_display_row_range.clone(),
4635 max_size,
4636 window,
4637 cx,
4638 )
4639 });
4640 let Some((position, hover_popovers)) = hover_popovers else {
4641 return;
4642 };
4643
4644 // This is safe because we check on layout whether the required row is available
4645 let hovered_row_layout =
4646 &line_layouts[position.row().minus(visible_display_row_range.start) as usize];
4647
4648 // Compute Hovered Point
4649 let x =
4650 hovered_row_layout.x_for_index(position.column() as usize) - scroll_pixel_position.x;
4651 let y = position.row().as_f32() * line_height - scroll_pixel_position.y;
4652 let hovered_point = content_origin + point(x, y);
4653
4654 let mut overall_height = Pixels::ZERO;
4655 let mut measured_hover_popovers = Vec::new();
4656 for (position, mut hover_popover) in hover_popovers.into_iter().with_position() {
4657 let size = hover_popover.layout_as_root(AvailableSpace::min_size(), window, cx);
4658 let horizontal_offset =
4659 (hitbox.top_right().x - POPOVER_RIGHT_OFFSET - (hovered_point.x + size.width))
4660 .min(Pixels::ZERO);
4661 match position {
4662 itertools::Position::Middle | itertools::Position::Last => {
4663 overall_height += HOVER_POPOVER_GAP
4664 }
4665 _ => {}
4666 }
4667 overall_height += size.height;
4668 measured_hover_popovers.push(MeasuredHoverPopover {
4669 element: hover_popover,
4670 size,
4671 horizontal_offset,
4672 });
4673 }
4674
4675 fn draw_occluder(
4676 width: Pixels,
4677 origin: gpui::Point<Pixels>,
4678 window: &mut Window,
4679 cx: &mut App,
4680 ) {
4681 let mut occlusion = div()
4682 .size_full()
4683 .occlude()
4684 .on_mouse_move(|_, _, cx| cx.stop_propagation())
4685 .into_any_element();
4686 occlusion.layout_as_root(size(width, HOVER_POPOVER_GAP).into(), window, cx);
4687 window.defer_draw(occlusion, origin, 2);
4688 }
4689
4690 fn place_popovers_above(
4691 hovered_point: gpui::Point<Pixels>,
4692 measured_hover_popovers: Vec<MeasuredHoverPopover>,
4693 window: &mut Window,
4694 cx: &mut App,
4695 ) {
4696 let mut current_y = hovered_point.y;
4697 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4698 let size = popover.size;
4699 let popover_origin = point(
4700 hovered_point.x + popover.horizontal_offset,
4701 current_y - size.height,
4702 );
4703
4704 window.defer_draw(popover.element, popover_origin, 2);
4705 if position != itertools::Position::Last {
4706 let origin = point(popover_origin.x, popover_origin.y - HOVER_POPOVER_GAP);
4707 draw_occluder(size.width, origin, window, cx);
4708 }
4709
4710 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4711 }
4712 }
4713
4714 fn place_popovers_below(
4715 hovered_point: gpui::Point<Pixels>,
4716 measured_hover_popovers: Vec<MeasuredHoverPopover>,
4717 line_height: Pixels,
4718 window: &mut Window,
4719 cx: &mut App,
4720 ) {
4721 let mut current_y = hovered_point.y + line_height;
4722 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4723 let size = popover.size;
4724 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4725
4726 window.defer_draw(popover.element, popover_origin, 2);
4727 if position != itertools::Position::Last {
4728 let origin = point(popover_origin.x, popover_origin.y + size.height);
4729 draw_occluder(size.width, origin, window, cx);
4730 }
4731
4732 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4733 }
4734 }
4735
4736 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
4737 context_menu_layout
4738 .as_ref()
4739 .map_or(false, |menu| bounds.intersects(&menu.bounds))
4740 };
4741
4742 let can_place_above = {
4743 let mut bounds_above = Vec::new();
4744 let mut current_y = hovered_point.y;
4745 for popover in &measured_hover_popovers {
4746 let size = popover.size;
4747 let popover_origin = point(
4748 hovered_point.x + popover.horizontal_offset,
4749 current_y - size.height,
4750 );
4751 bounds_above.push(Bounds::new(popover_origin, size));
4752 current_y = popover_origin.y - HOVER_POPOVER_GAP;
4753 }
4754 bounds_above
4755 .iter()
4756 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
4757 };
4758
4759 let can_place_below = || {
4760 let mut bounds_below = Vec::new();
4761 let mut current_y = hovered_point.y + line_height;
4762 for popover in &measured_hover_popovers {
4763 let size = popover.size;
4764 let popover_origin = point(hovered_point.x + popover.horizontal_offset, current_y);
4765 bounds_below.push(Bounds::new(popover_origin, size));
4766 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4767 }
4768 bounds_below
4769 .iter()
4770 .all(|b| b.is_contained_within(hitbox) && !intersects_menu(*b))
4771 };
4772
4773 if can_place_above {
4774 // try placing above hovered point
4775 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
4776 } else if can_place_below() {
4777 // try placing below hovered point
4778 place_popovers_below(
4779 hovered_point,
4780 measured_hover_popovers,
4781 line_height,
4782 window,
4783 cx,
4784 );
4785 } else {
4786 // try to place popovers around the context menu
4787 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
4788 let total_width = measured_hover_popovers
4789 .iter()
4790 .map(|p| p.size.width)
4791 .max()
4792 .unwrap_or(Pixels::ZERO);
4793 let y_for_horizontal_positioning = if menu.y_flipped {
4794 menu.bounds.bottom() - overall_height
4795 } else {
4796 menu.bounds.top()
4797 };
4798 let possible_origins = vec![
4799 // left of context menu
4800 point(
4801 menu.bounds.left() - total_width - HOVER_POPOVER_GAP,
4802 y_for_horizontal_positioning,
4803 ),
4804 // right of context menu
4805 point(
4806 menu.bounds.right() + HOVER_POPOVER_GAP,
4807 y_for_horizontal_positioning,
4808 ),
4809 // top of context menu
4810 point(
4811 menu.bounds.left(),
4812 menu.bounds.top() - overall_height - HOVER_POPOVER_GAP,
4813 ),
4814 // bottom of context menu
4815 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
4816 ];
4817 possible_origins.into_iter().find(|&origin| {
4818 Bounds::new(origin, size(total_width, overall_height))
4819 .is_contained_within(hitbox)
4820 })
4821 });
4822 if let Some(origin) = origin_surrounding_menu {
4823 let mut current_y = origin.y;
4824 for (position, popover) in measured_hover_popovers.into_iter().with_position() {
4825 let size = popover.size;
4826 let popover_origin = point(origin.x, current_y);
4827
4828 window.defer_draw(popover.element, popover_origin, 2);
4829 if position != itertools::Position::Last {
4830 let origin = point(popover_origin.x, popover_origin.y + size.height);
4831 draw_occluder(size.width, origin, window, cx);
4832 }
4833
4834 current_y = popover_origin.y + size.height + HOVER_POPOVER_GAP;
4835 }
4836 } else {
4837 // fallback to existing above/below cursor logic
4838 // this might overlap menu or overflow in rare case
4839 if can_place_above {
4840 place_popovers_above(hovered_point, measured_hover_popovers, window, cx);
4841 } else {
4842 place_popovers_below(
4843 hovered_point,
4844 measured_hover_popovers,
4845 line_height,
4846 window,
4847 cx,
4848 );
4849 }
4850 }
4851 }
4852 }
4853
4854 fn layout_diff_hunk_controls(
4855 &self,
4856 row_range: Range<DisplayRow>,
4857 row_infos: &[RowInfo],
4858 text_hitbox: &Hitbox,
4859 newest_cursor_position: Option<DisplayPoint>,
4860 line_height: Pixels,
4861 right_margin: Pixels,
4862 scroll_pixel_position: gpui::Point<Pixels>,
4863 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
4864 highlighted_rows: &BTreeMap<DisplayRow, LineHighlight>,
4865 editor: Entity<Editor>,
4866 window: &mut Window,
4867 cx: &mut App,
4868 ) -> (Vec<AnyElement>, Vec<(DisplayRow, Bounds<Pixels>)>) {
4869 let render_diff_hunk_controls = editor.read(cx).render_diff_hunk_controls.clone();
4870 let hovered_diff_hunk_row = editor.read(cx).hovered_diff_hunk_row;
4871
4872 let mut controls = vec![];
4873 let mut control_bounds = vec![];
4874
4875 let active_positions = [
4876 hovered_diff_hunk_row.map(|row| DisplayPoint::new(row, 0)),
4877 newest_cursor_position,
4878 ];
4879
4880 for (hunk, _) in display_hunks {
4881 if let DisplayDiffHunk::Unfolded {
4882 display_row_range,
4883 multi_buffer_range,
4884 status,
4885 is_created_file,
4886 ..
4887 } = &hunk
4888 {
4889 if display_row_range.start < row_range.start
4890 || display_row_range.start >= row_range.end
4891 {
4892 continue;
4893 }
4894 if highlighted_rows
4895 .get(&display_row_range.start)
4896 .and_then(|highlight| highlight.type_id)
4897 .is_some_and(|type_id| {
4898 [
4899 TypeId::of::<ConflictsOuter>(),
4900 TypeId::of::<ConflictsOursMarker>(),
4901 TypeId::of::<ConflictsOurs>(),
4902 TypeId::of::<ConflictsTheirs>(),
4903 TypeId::of::<ConflictsTheirsMarker>(),
4904 ]
4905 .contains(&type_id)
4906 })
4907 {
4908 continue;
4909 }
4910 let row_ix = (display_row_range.start - row_range.start).0 as usize;
4911 if row_infos[row_ix].diff_status.is_none() {
4912 continue;
4913 }
4914 if row_infos[row_ix]
4915 .diff_status
4916 .is_some_and(|status| status.is_added())
4917 && !status.is_added()
4918 {
4919 continue;
4920 }
4921
4922 if active_positions
4923 .iter()
4924 .any(|p| p.map_or(false, |p| display_row_range.contains(&p.row())))
4925 {
4926 let y = display_row_range.start.as_f32() * line_height
4927 + text_hitbox.bounds.top()
4928 - scroll_pixel_position.y;
4929
4930 let mut element = render_diff_hunk_controls(
4931 display_row_range.start.0,
4932 status,
4933 multi_buffer_range.clone(),
4934 *is_created_file,
4935 line_height,
4936 &editor,
4937 window,
4938 cx,
4939 );
4940 let size =
4941 element.layout_as_root(size(px(100.0), line_height).into(), window, cx);
4942
4943 let x = text_hitbox.bounds.right() - right_margin - px(10.) - size.width;
4944
4945 let bounds = Bounds::new(gpui::Point::new(x, y), size);
4946 control_bounds.push((display_row_range.start, bounds));
4947
4948 window.with_absolute_element_offset(gpui::Point::new(x, y), |window| {
4949 element.prepaint(window, cx)
4950 });
4951 controls.push(element);
4952 }
4953 }
4954 }
4955
4956 (controls, control_bounds)
4957 }
4958
4959 fn layout_signature_help(
4960 &self,
4961 hitbox: &Hitbox,
4962 content_origin: gpui::Point<Pixels>,
4963 scroll_pixel_position: gpui::Point<Pixels>,
4964 newest_selection_head: Option<DisplayPoint>,
4965 start_row: DisplayRow,
4966 line_layouts: &[LineWithInvisibles],
4967 line_height: Pixels,
4968 em_width: Pixels,
4969 context_menu_layout: Option<ContextMenuLayout>,
4970 window: &mut Window,
4971 cx: &mut App,
4972 ) {
4973 if !self.editor.focus_handle(cx).is_focused(window) {
4974 return;
4975 }
4976 let Some(newest_selection_head) = newest_selection_head else {
4977 return;
4978 };
4979
4980 let max_size = size(
4981 (120. * em_width) // Default size
4982 .min(hitbox.size.width / 2.) // Shrink to half of the editor width
4983 .max(MIN_POPOVER_CHARACTER_WIDTH * em_width), // Apply minimum width of 20 characters
4984 (16. * line_height) // Default size
4985 .min(hitbox.size.height / 2.) // Shrink to half of the editor height
4986 .max(MIN_POPOVER_LINE_HEIGHT * line_height), // Apply minimum height of 4 lines
4987 );
4988
4989 let maybe_element = self.editor.update(cx, |editor, cx| {
4990 if let Some(popover) = editor.signature_help_state.popover_mut() {
4991 let element = popover.render(max_size, window, cx);
4992 Some(element)
4993 } else {
4994 None
4995 }
4996 });
4997 let Some(mut element) = maybe_element else {
4998 return;
4999 };
5000
5001 let selection_row = newest_selection_head.row();
5002 let Some(cursor_row_layout) = (selection_row >= start_row)
5003 .then(|| line_layouts.get(selection_row.minus(start_row) as usize))
5004 .flatten()
5005 else {
5006 return;
5007 };
5008
5009 let target_x = cursor_row_layout.x_for_index(newest_selection_head.column() as usize)
5010 - scroll_pixel_position.x;
5011 let target_y = selection_row.as_f32() * line_height - scroll_pixel_position.y;
5012 let target_point = content_origin + point(target_x, target_y);
5013
5014 let actual_size = element.layout_as_root(Size::<AvailableSpace>::default(), window, cx);
5015
5016 let (popover_bounds_above, popover_bounds_below) = {
5017 let horizontal_offset = (hitbox.top_right().x
5018 - POPOVER_RIGHT_OFFSET
5019 - (target_point.x + actual_size.width))
5020 .min(Pixels::ZERO);
5021 let initial_x = target_point.x + horizontal_offset;
5022 (
5023 Bounds::new(
5024 point(initial_x, target_point.y - actual_size.height),
5025 actual_size,
5026 ),
5027 Bounds::new(
5028 point(initial_x, target_point.y + line_height + HOVER_POPOVER_GAP),
5029 actual_size,
5030 ),
5031 )
5032 };
5033
5034 let intersects_menu = |bounds: Bounds<Pixels>| -> bool {
5035 context_menu_layout
5036 .as_ref()
5037 .map_or(false, |menu| bounds.intersects(&menu.bounds))
5038 };
5039
5040 let final_origin = if popover_bounds_above.is_contained_within(hitbox)
5041 && !intersects_menu(popover_bounds_above)
5042 {
5043 // try placing above cursor
5044 popover_bounds_above.origin
5045 } else if popover_bounds_below.is_contained_within(hitbox)
5046 && !intersects_menu(popover_bounds_below)
5047 {
5048 // try placing below cursor
5049 popover_bounds_below.origin
5050 } else {
5051 // try surrounding context menu if exists
5052 let origin_surrounding_menu = context_menu_layout.as_ref().and_then(|menu| {
5053 let y_for_horizontal_positioning = if menu.y_flipped {
5054 menu.bounds.bottom() - actual_size.height
5055 } else {
5056 menu.bounds.top()
5057 };
5058 let possible_origins = vec![
5059 // left of context menu
5060 point(
5061 menu.bounds.left() - actual_size.width - HOVER_POPOVER_GAP,
5062 y_for_horizontal_positioning,
5063 ),
5064 // right of context menu
5065 point(
5066 menu.bounds.right() + HOVER_POPOVER_GAP,
5067 y_for_horizontal_positioning,
5068 ),
5069 // top of context menu
5070 point(
5071 menu.bounds.left(),
5072 menu.bounds.top() - actual_size.height - HOVER_POPOVER_GAP,
5073 ),
5074 // bottom of context menu
5075 point(menu.bounds.left(), menu.bounds.bottom() + HOVER_POPOVER_GAP),
5076 ];
5077 possible_origins
5078 .into_iter()
5079 .find(|&origin| Bounds::new(origin, actual_size).is_contained_within(hitbox))
5080 });
5081 origin_surrounding_menu.unwrap_or_else(|| {
5082 // fallback to existing above/below cursor logic
5083 // this might overlap menu or overflow in rare case
5084 if popover_bounds_above.is_contained_within(hitbox) {
5085 popover_bounds_above.origin
5086 } else {
5087 popover_bounds_below.origin
5088 }
5089 })
5090 };
5091
5092 window.defer_draw(element, final_origin, 2);
5093 }
5094
5095 fn paint_background(&self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
5096 window.paint_layer(layout.hitbox.bounds, |window| {
5097 let scroll_top = layout.position_map.snapshot.scroll_position().y;
5098 let gutter_bg = cx.theme().colors().editor_gutter_background;
5099 window.paint_quad(fill(layout.gutter_hitbox.bounds, gutter_bg));
5100 window.paint_quad(fill(
5101 layout.position_map.text_hitbox.bounds,
5102 self.style.background,
5103 ));
5104
5105 if matches!(
5106 layout.mode,
5107 EditorMode::Full { .. } | EditorMode::Minimap { .. }
5108 ) {
5109 let show_active_line_background = match layout.mode {
5110 EditorMode::Full {
5111 show_active_line_background,
5112 ..
5113 } => show_active_line_background,
5114 EditorMode::Minimap { .. } => true,
5115 _ => false,
5116 };
5117 let mut active_rows = layout.active_rows.iter().peekable();
5118 while let Some((start_row, contains_non_empty_selection)) = active_rows.next() {
5119 let mut end_row = start_row.0;
5120 while active_rows
5121 .peek()
5122 .map_or(false, |(active_row, has_selection)| {
5123 active_row.0 == end_row + 1
5124 && has_selection.selection == contains_non_empty_selection.selection
5125 })
5126 {
5127 active_rows.next().unwrap();
5128 end_row += 1;
5129 }
5130
5131 if show_active_line_background && !contains_non_empty_selection.selection {
5132 let highlight_h_range =
5133 match layout.position_map.snapshot.current_line_highlight {
5134 CurrentLineHighlight::Gutter => Some(Range {
5135 start: layout.hitbox.left(),
5136 end: layout.gutter_hitbox.right(),
5137 }),
5138 CurrentLineHighlight::Line => Some(Range {
5139 start: layout.position_map.text_hitbox.bounds.left(),
5140 end: layout.position_map.text_hitbox.bounds.right(),
5141 }),
5142 CurrentLineHighlight::All => Some(Range {
5143 start: layout.hitbox.left(),
5144 end: layout.hitbox.right(),
5145 }),
5146 CurrentLineHighlight::None => None,
5147 };
5148 if let Some(range) = highlight_h_range {
5149 let active_line_bg = cx.theme().colors().editor_active_line_background;
5150 let bounds = Bounds {
5151 origin: point(
5152 range.start,
5153 layout.hitbox.origin.y
5154 + (start_row.as_f32() - scroll_top)
5155 * layout.position_map.line_height,
5156 ),
5157 size: size(
5158 range.end - range.start,
5159 layout.position_map.line_height
5160 * (end_row - start_row.0 + 1) as f32,
5161 ),
5162 };
5163 window.paint_quad(fill(bounds, active_line_bg));
5164 }
5165 }
5166 }
5167
5168 let mut paint_highlight = |highlight_row_start: DisplayRow,
5169 highlight_row_end: DisplayRow,
5170 highlight: crate::LineHighlight,
5171 edges| {
5172 let mut origin_x = layout.hitbox.left();
5173 let mut width = layout.hitbox.size.width;
5174 if !highlight.include_gutter {
5175 origin_x += layout.gutter_hitbox.size.width;
5176 width -= layout.gutter_hitbox.size.width;
5177 }
5178
5179 let origin = point(
5180 origin_x,
5181 layout.hitbox.origin.y
5182 + (highlight_row_start.as_f32() - scroll_top)
5183 * layout.position_map.line_height,
5184 );
5185 let size = size(
5186 width,
5187 layout.position_map.line_height
5188 * highlight_row_end.next_row().minus(highlight_row_start) as f32,
5189 );
5190 let mut quad = fill(Bounds { origin, size }, highlight.background);
5191 if let Some(border_color) = highlight.border {
5192 quad.border_color = border_color;
5193 quad.border_widths = edges
5194 }
5195 window.paint_quad(quad);
5196 };
5197
5198 let mut current_paint: Option<(LineHighlight, Range<DisplayRow>, Edges<Pixels>)> =
5199 None;
5200 for (&new_row, &new_background) in &layout.highlighted_rows {
5201 match &mut current_paint {
5202 &mut Some((current_background, ref mut current_range, mut edges)) => {
5203 let new_range_started = current_background != new_background
5204 || current_range.end.next_row() != new_row;
5205 if new_range_started {
5206 if current_range.end.next_row() == new_row {
5207 edges.bottom = px(0.);
5208 };
5209 paint_highlight(
5210 current_range.start,
5211 current_range.end,
5212 current_background,
5213 edges,
5214 );
5215 let edges = Edges {
5216 top: if current_range.end.next_row() != new_row {
5217 px(1.)
5218 } else {
5219 px(0.)
5220 },
5221 bottom: px(1.),
5222 ..Default::default()
5223 };
5224 current_paint = Some((new_background, new_row..new_row, edges));
5225 continue;
5226 } else {
5227 current_range.end = current_range.end.next_row();
5228 }
5229 }
5230 None => {
5231 let edges = Edges {
5232 top: px(1.),
5233 bottom: px(1.),
5234 ..Default::default()
5235 };
5236 current_paint = Some((new_background, new_row..new_row, edges))
5237 }
5238 };
5239 }
5240 if let Some((color, range, edges)) = current_paint {
5241 paint_highlight(range.start, range.end, color, edges);
5242 }
5243
5244 let scroll_left =
5245 layout.position_map.snapshot.scroll_position().x * layout.position_map.em_width;
5246
5247 for (wrap_position, active) in layout.wrap_guides.iter() {
5248 let x = (layout.position_map.text_hitbox.origin.x
5249 + *wrap_position
5250 + layout.position_map.em_width / 2.)
5251 - scroll_left;
5252
5253 let show_scrollbars = layout
5254 .scrollbars_layout
5255 .as_ref()
5256 .map_or(false, |layout| layout.visible);
5257
5258 if x < layout.position_map.text_hitbox.origin.x
5259 || (show_scrollbars && x > self.scrollbar_left(&layout.hitbox.bounds))
5260 {
5261 continue;
5262 }
5263
5264 let color = if *active {
5265 cx.theme().colors().editor_active_wrap_guide
5266 } else {
5267 cx.theme().colors().editor_wrap_guide
5268 };
5269 window.paint_quad(fill(
5270 Bounds {
5271 origin: point(x, layout.position_map.text_hitbox.origin.y),
5272 size: size(px(1.), layout.position_map.text_hitbox.size.height),
5273 },
5274 color,
5275 ));
5276 }
5277 }
5278 })
5279 }
5280
5281 fn paint_indent_guides(
5282 &mut self,
5283 layout: &mut EditorLayout,
5284 window: &mut Window,
5285 cx: &mut App,
5286 ) {
5287 let Some(indent_guides) = &layout.indent_guides else {
5288 return;
5289 };
5290
5291 let faded_color = |color: Hsla, alpha: f32| {
5292 let mut faded = color;
5293 faded.a = alpha;
5294 faded
5295 };
5296
5297 for indent_guide in indent_guides {
5298 let indent_accent_colors = cx.theme().accents().color_for_index(indent_guide.depth);
5299 let settings = indent_guide.settings;
5300
5301 // TODO fixed for now, expose them through themes later
5302 const INDENT_AWARE_ALPHA: f32 = 0.2;
5303 const INDENT_AWARE_ACTIVE_ALPHA: f32 = 0.4;
5304 const INDENT_AWARE_BACKGROUND_ALPHA: f32 = 0.1;
5305 const INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA: f32 = 0.2;
5306
5307 let line_color = match (settings.coloring, indent_guide.active) {
5308 (IndentGuideColoring::Disabled, _) => None,
5309 (IndentGuideColoring::Fixed, false) => {
5310 Some(cx.theme().colors().editor_indent_guide)
5311 }
5312 (IndentGuideColoring::Fixed, true) => {
5313 Some(cx.theme().colors().editor_indent_guide_active)
5314 }
5315 (IndentGuideColoring::IndentAware, false) => {
5316 Some(faded_color(indent_accent_colors, INDENT_AWARE_ALPHA))
5317 }
5318 (IndentGuideColoring::IndentAware, true) => {
5319 Some(faded_color(indent_accent_colors, INDENT_AWARE_ACTIVE_ALPHA))
5320 }
5321 };
5322
5323 let background_color = match (settings.background_coloring, indent_guide.active) {
5324 (IndentGuideBackgroundColoring::Disabled, _) => None,
5325 (IndentGuideBackgroundColoring::IndentAware, false) => Some(faded_color(
5326 indent_accent_colors,
5327 INDENT_AWARE_BACKGROUND_ALPHA,
5328 )),
5329 (IndentGuideBackgroundColoring::IndentAware, true) => Some(faded_color(
5330 indent_accent_colors,
5331 INDENT_AWARE_BACKGROUND_ACTIVE_ALPHA,
5332 )),
5333 };
5334
5335 let requested_line_width = if indent_guide.active {
5336 settings.active_line_width
5337 } else {
5338 settings.line_width
5339 }
5340 .clamp(1, 10);
5341 let mut line_indicator_width = 0.;
5342 if let Some(color) = line_color {
5343 window.paint_quad(fill(
5344 Bounds {
5345 origin: indent_guide.origin,
5346 size: size(px(requested_line_width as f32), indent_guide.length),
5347 },
5348 color,
5349 ));
5350 line_indicator_width = requested_line_width as f32;
5351 }
5352
5353 if let Some(color) = background_color {
5354 let width = indent_guide.single_indent_width - px(line_indicator_width);
5355 window.paint_quad(fill(
5356 Bounds {
5357 origin: point(
5358 indent_guide.origin.x + px(line_indicator_width),
5359 indent_guide.origin.y,
5360 ),
5361 size: size(width, indent_guide.length),
5362 },
5363 color,
5364 ));
5365 }
5366 }
5367 }
5368
5369 fn paint_line_numbers(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5370 let is_singleton = self.editor.read(cx).is_singleton(cx);
5371
5372 let line_height = layout.position_map.line_height;
5373 window.set_cursor_style(CursorStyle::Arrow, &layout.gutter_hitbox);
5374
5375 for LineNumberLayout {
5376 shaped_line,
5377 hitbox,
5378 } in layout.line_numbers.values()
5379 {
5380 let Some(hitbox) = hitbox else {
5381 continue;
5382 };
5383
5384 let Some(()) = (if !is_singleton && hitbox.is_hovered(window) {
5385 let color = cx.theme().colors().editor_hover_line_number;
5386
5387 let line = self.shape_line_number(shaped_line.text.clone(), color, window);
5388 line.paint(hitbox.origin, line_height, window, cx).log_err()
5389 } else {
5390 shaped_line
5391 .paint(hitbox.origin, line_height, window, cx)
5392 .log_err()
5393 }) else {
5394 continue;
5395 };
5396
5397 // In singleton buffers, we select corresponding lines on the line number click, so use | -like cursor.
5398 // In multi buffers, we open file at the line number clicked, so use a pointing hand cursor.
5399 if is_singleton {
5400 window.set_cursor_style(CursorStyle::IBeam, &hitbox);
5401 } else {
5402 window.set_cursor_style(CursorStyle::PointingHand, &hitbox);
5403 }
5404 }
5405 }
5406
5407 fn paint_gutter_diff_hunks(layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5408 if layout.display_hunks.is_empty() {
5409 return;
5410 }
5411
5412 let line_height = layout.position_map.line_height;
5413 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5414 for (hunk, hitbox) in &layout.display_hunks {
5415 let hunk_to_paint = match hunk {
5416 DisplayDiffHunk::Folded { .. } => {
5417 let hunk_bounds = Self::diff_hunk_bounds(
5418 &layout.position_map.snapshot,
5419 line_height,
5420 layout.gutter_hitbox.bounds,
5421 &hunk,
5422 );
5423 Some((
5424 hunk_bounds,
5425 cx.theme().colors().version_control_modified,
5426 Corners::all(px(0.)),
5427 DiffHunkStatus::modified_none(),
5428 ))
5429 }
5430 DisplayDiffHunk::Unfolded {
5431 status,
5432 display_row_range,
5433 ..
5434 } => hitbox.as_ref().map(|hunk_hitbox| match status.kind {
5435 DiffHunkStatusKind::Added => (
5436 hunk_hitbox.bounds,
5437 cx.theme().colors().version_control_added,
5438 Corners::all(px(0.)),
5439 *status,
5440 ),
5441 DiffHunkStatusKind::Modified => (
5442 hunk_hitbox.bounds,
5443 cx.theme().colors().version_control_modified,
5444 Corners::all(px(0.)),
5445 *status,
5446 ),
5447 DiffHunkStatusKind::Deleted if !display_row_range.is_empty() => (
5448 hunk_hitbox.bounds,
5449 cx.theme().colors().version_control_deleted,
5450 Corners::all(px(0.)),
5451 *status,
5452 ),
5453 DiffHunkStatusKind::Deleted => (
5454 Bounds::new(
5455 point(
5456 hunk_hitbox.origin.x - hunk_hitbox.size.width,
5457 hunk_hitbox.origin.y,
5458 ),
5459 size(hunk_hitbox.size.width * 2., hunk_hitbox.size.height),
5460 ),
5461 cx.theme().colors().version_control_deleted,
5462 Corners::all(1. * line_height),
5463 *status,
5464 ),
5465 }),
5466 };
5467
5468 if let Some((hunk_bounds, background_color, corner_radii, status)) = hunk_to_paint {
5469 // Flatten the background color with the editor color to prevent
5470 // elements below transparent hunks from showing through
5471 let flattened_background_color = cx
5472 .theme()
5473 .colors()
5474 .editor_background
5475 .blend(background_color);
5476
5477 if !Self::diff_hunk_hollow(status, cx) {
5478 window.paint_quad(quad(
5479 hunk_bounds,
5480 corner_radii,
5481 flattened_background_color,
5482 Edges::default(),
5483 transparent_black(),
5484 BorderStyle::default(),
5485 ));
5486 } else {
5487 let flattened_unstaged_background_color = cx
5488 .theme()
5489 .colors()
5490 .editor_background
5491 .blend(background_color.opacity(0.3));
5492
5493 window.paint_quad(quad(
5494 hunk_bounds,
5495 corner_radii,
5496 flattened_unstaged_background_color,
5497 Edges::all(Pixels(1.0)),
5498 flattened_background_color,
5499 BorderStyle::Solid,
5500 ));
5501 }
5502 }
5503 }
5504 });
5505 }
5506
5507 fn gutter_strip_width(line_height: Pixels) -> Pixels {
5508 (0.275 * line_height).floor()
5509 }
5510
5511 fn diff_hunk_bounds(
5512 snapshot: &EditorSnapshot,
5513 line_height: Pixels,
5514 gutter_bounds: Bounds<Pixels>,
5515 hunk: &DisplayDiffHunk,
5516 ) -> Bounds<Pixels> {
5517 let scroll_position = snapshot.scroll_position();
5518 let scroll_top = scroll_position.y * line_height;
5519 let gutter_strip_width = Self::gutter_strip_width(line_height);
5520
5521 match hunk {
5522 DisplayDiffHunk::Folded { display_row, .. } => {
5523 let start_y = display_row.as_f32() * line_height - scroll_top;
5524 let end_y = start_y + line_height;
5525 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5526 let highlight_size = size(gutter_strip_width, end_y - start_y);
5527 Bounds::new(highlight_origin, highlight_size)
5528 }
5529 DisplayDiffHunk::Unfolded {
5530 display_row_range,
5531 status,
5532 ..
5533 } => {
5534 if status.is_deleted() && display_row_range.is_empty() {
5535 let row = display_row_range.start;
5536
5537 let offset = line_height / 2.;
5538 let start_y = row.as_f32() * line_height - offset - scroll_top;
5539 let end_y = start_y + line_height;
5540
5541 let width = (0.35 * line_height).floor();
5542 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5543 let highlight_size = size(width, end_y - start_y);
5544 Bounds::new(highlight_origin, highlight_size)
5545 } else {
5546 let start_row = display_row_range.start;
5547 let end_row = display_row_range.end;
5548 // If we're in a multibuffer, row range span might include an
5549 // excerpt header, so if we were to draw the marker straight away,
5550 // the hunk might include the rows of that header.
5551 // Making the range inclusive doesn't quite cut it, as we rely on the exclusivity for the soft wrap.
5552 // Instead, we simply check whether the range we're dealing with includes
5553 // any excerpt headers and if so, we stop painting the diff hunk on the first row of that header.
5554 let end_row_in_current_excerpt = snapshot
5555 .blocks_in_range(start_row..end_row)
5556 .find_map(|(start_row, block)| {
5557 if matches!(block, Block::ExcerptBoundary { .. }) {
5558 Some(start_row)
5559 } else {
5560 None
5561 }
5562 })
5563 .unwrap_or(end_row);
5564
5565 let start_y = start_row.as_f32() * line_height - scroll_top;
5566 let end_y = end_row_in_current_excerpt.as_f32() * line_height - scroll_top;
5567
5568 let highlight_origin = gutter_bounds.origin + point(px(0.), start_y);
5569 let highlight_size = size(gutter_strip_width, end_y - start_y);
5570 Bounds::new(highlight_origin, highlight_size)
5571 }
5572 }
5573 }
5574 }
5575
5576 fn paint_gutter_indicators(
5577 &self,
5578 layout: &mut EditorLayout,
5579 window: &mut Window,
5580 cx: &mut App,
5581 ) {
5582 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5583 window.with_element_namespace("crease_toggles", |window| {
5584 for crease_toggle in layout.crease_toggles.iter_mut().flatten() {
5585 crease_toggle.paint(window, cx);
5586 }
5587 });
5588
5589 window.with_element_namespace("expand_toggles", |window| {
5590 for (expand_toggle, _) in layout.expand_toggles.iter_mut().flatten() {
5591 expand_toggle.paint(window, cx);
5592 }
5593 });
5594
5595 for breakpoint in layout.breakpoints.iter_mut() {
5596 breakpoint.paint(window, cx);
5597 }
5598
5599 for test_indicator in layout.test_indicators.iter_mut() {
5600 test_indicator.paint(window, cx);
5601 }
5602 });
5603 }
5604
5605 fn paint_gutter_highlights(
5606 &self,
5607 layout: &mut EditorLayout,
5608 window: &mut Window,
5609 cx: &mut App,
5610 ) {
5611 for (_, hunk_hitbox) in &layout.display_hunks {
5612 if let Some(hunk_hitbox) = hunk_hitbox {
5613 if !self
5614 .editor
5615 .read(cx)
5616 .buffer()
5617 .read(cx)
5618 .all_diff_hunks_expanded()
5619 {
5620 window.set_cursor_style(CursorStyle::PointingHand, hunk_hitbox);
5621 }
5622 }
5623 }
5624
5625 let show_git_gutter = layout
5626 .position_map
5627 .snapshot
5628 .show_git_diff_gutter
5629 .unwrap_or_else(|| {
5630 matches!(
5631 ProjectSettings::get_global(cx).git.git_gutter,
5632 Some(GitGutterSetting::TrackedFiles)
5633 )
5634 });
5635 if show_git_gutter {
5636 Self::paint_gutter_diff_hunks(layout, window, cx)
5637 }
5638
5639 let highlight_width = 0.275 * layout.position_map.line_height;
5640 let highlight_corner_radii = Corners::all(0.05 * layout.position_map.line_height);
5641 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5642 for (range, color) in &layout.highlighted_gutter_ranges {
5643 let start_row = if range.start.row() < layout.visible_display_row_range.start {
5644 layout.visible_display_row_range.start - DisplayRow(1)
5645 } else {
5646 range.start.row()
5647 };
5648 let end_row = if range.end.row() > layout.visible_display_row_range.end {
5649 layout.visible_display_row_range.end + DisplayRow(1)
5650 } else {
5651 range.end.row()
5652 };
5653
5654 let start_y = layout.gutter_hitbox.top()
5655 + start_row.0 as f32 * layout.position_map.line_height
5656 - layout.position_map.scroll_pixel_position.y;
5657 let end_y = layout.gutter_hitbox.top()
5658 + (end_row.0 + 1) as f32 * layout.position_map.line_height
5659 - layout.position_map.scroll_pixel_position.y;
5660 let bounds = Bounds::from_corners(
5661 point(layout.gutter_hitbox.left(), start_y),
5662 point(layout.gutter_hitbox.left() + highlight_width, end_y),
5663 );
5664 window.paint_quad(fill(bounds, *color).corner_radii(highlight_corner_radii));
5665 }
5666 });
5667 }
5668
5669 fn paint_blamed_display_rows(
5670 &self,
5671 layout: &mut EditorLayout,
5672 window: &mut Window,
5673 cx: &mut App,
5674 ) {
5675 let Some(blamed_display_rows) = layout.blamed_display_rows.take() else {
5676 return;
5677 };
5678
5679 window.paint_layer(layout.gutter_hitbox.bounds, |window| {
5680 for mut blame_element in blamed_display_rows.into_iter() {
5681 blame_element.paint(window, cx);
5682 }
5683 })
5684 }
5685
5686 fn paint_text(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5687 window.with_content_mask(
5688 Some(ContentMask {
5689 bounds: layout.position_map.text_hitbox.bounds,
5690 }),
5691 |window| {
5692 let editor = self.editor.read(cx);
5693 if editor.mouse_cursor_hidden {
5694 window.set_window_cursor_style(CursorStyle::None);
5695 } else if matches!(
5696 editor.selection_drag_state,
5697 SelectionDragState::Dragging { .. }
5698 ) {
5699 window
5700 .set_cursor_style(CursorStyle::DragCopy, &layout.position_map.text_hitbox);
5701 } else if editor
5702 .hovered_link_state
5703 .as_ref()
5704 .is_some_and(|hovered_link_state| !hovered_link_state.links.is_empty())
5705 {
5706 window.set_cursor_style(
5707 CursorStyle::PointingHand,
5708 &layout.position_map.text_hitbox,
5709 );
5710 } else {
5711 window.set_cursor_style(CursorStyle::IBeam, &layout.position_map.text_hitbox);
5712 };
5713
5714 self.paint_lines_background(layout, window, cx);
5715 let invisible_display_ranges = self.paint_highlights(layout, window);
5716 self.paint_document_colors(layout, window);
5717 self.paint_lines(&invisible_display_ranges, layout, window, cx);
5718 self.paint_redactions(layout, window);
5719 self.paint_cursors(layout, window, cx);
5720 self.paint_inline_diagnostics(layout, window, cx);
5721 self.paint_inline_blame(layout, window, cx);
5722 self.paint_inline_code_actions(layout, window, cx);
5723 self.paint_diff_hunk_controls(layout, window, cx);
5724 window.with_element_namespace("crease_trailers", |window| {
5725 for trailer in layout.crease_trailers.iter_mut().flatten() {
5726 trailer.element.paint(window, cx);
5727 }
5728 });
5729 },
5730 )
5731 }
5732
5733 fn paint_highlights(
5734 &mut self,
5735 layout: &mut EditorLayout,
5736 window: &mut Window,
5737 ) -> SmallVec<[Range<DisplayPoint>; 32]> {
5738 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5739 let mut invisible_display_ranges = SmallVec::<[Range<DisplayPoint>; 32]>::new();
5740 let line_end_overshoot = 0.15 * layout.position_map.line_height;
5741 for (range, color) in &layout.highlighted_ranges {
5742 self.paint_highlighted_range(
5743 range.clone(),
5744 true,
5745 *color,
5746 Pixels::ZERO,
5747 line_end_overshoot,
5748 layout,
5749 window,
5750 );
5751 }
5752
5753 let corner_radius = 0.15 * layout.position_map.line_height;
5754
5755 for (player_color, selections) in &layout.selections {
5756 for selection in selections.iter() {
5757 self.paint_highlighted_range(
5758 selection.range.clone(),
5759 true,
5760 player_color.selection,
5761 corner_radius,
5762 corner_radius * 2.,
5763 layout,
5764 window,
5765 );
5766
5767 if selection.is_local && !selection.range.is_empty() {
5768 invisible_display_ranges.push(selection.range.clone());
5769 }
5770 }
5771 }
5772 invisible_display_ranges
5773 })
5774 }
5775
5776 fn paint_lines(
5777 &mut self,
5778 invisible_display_ranges: &[Range<DisplayPoint>],
5779 layout: &mut EditorLayout,
5780 window: &mut Window,
5781 cx: &mut App,
5782 ) {
5783 let whitespace_setting = self
5784 .editor
5785 .read(cx)
5786 .buffer
5787 .read(cx)
5788 .language_settings(cx)
5789 .show_whitespaces;
5790
5791 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
5792 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
5793 line_with_invisibles.draw(
5794 layout,
5795 row,
5796 layout.content_origin,
5797 whitespace_setting,
5798 invisible_display_ranges,
5799 window,
5800 cx,
5801 )
5802 }
5803
5804 for line_element in &mut layout.line_elements {
5805 line_element.paint(window, cx);
5806 }
5807 }
5808
5809 fn paint_lines_background(
5810 &mut self,
5811 layout: &mut EditorLayout,
5812 window: &mut Window,
5813 cx: &mut App,
5814 ) {
5815 for (ix, line_with_invisibles) in layout.position_map.line_layouts.iter().enumerate() {
5816 let row = DisplayRow(layout.visible_display_row_range.start.0 + ix as u32);
5817 line_with_invisibles.draw_background(layout, row, layout.content_origin, window, cx);
5818 }
5819 }
5820
5821 fn paint_redactions(&mut self, layout: &EditorLayout, window: &mut Window) {
5822 if layout.redacted_ranges.is_empty() {
5823 return;
5824 }
5825
5826 let line_end_overshoot = layout.line_end_overshoot();
5827
5828 // A softer than perfect black
5829 let redaction_color = gpui::rgb(0x0e1111);
5830
5831 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
5832 for range in layout.redacted_ranges.iter() {
5833 self.paint_highlighted_range(
5834 range.clone(),
5835 true,
5836 redaction_color.into(),
5837 Pixels::ZERO,
5838 line_end_overshoot,
5839 layout,
5840 window,
5841 );
5842 }
5843 });
5844 }
5845
5846 fn paint_document_colors(&self, layout: &mut EditorLayout, window: &mut Window) {
5847 let Some((colors_render_mode, image_colors)) = &layout.document_colors else {
5848 return;
5849 };
5850 if image_colors.is_empty()
5851 || colors_render_mode == &DocumentColorsRenderMode::None
5852 || colors_render_mode == &DocumentColorsRenderMode::Inlay
5853 {
5854 return;
5855 }
5856
5857 let line_end_overshoot = layout.line_end_overshoot();
5858
5859 for (range, color) in image_colors {
5860 match colors_render_mode {
5861 DocumentColorsRenderMode::Inlay | DocumentColorsRenderMode::None => return,
5862 DocumentColorsRenderMode::Background => {
5863 self.paint_highlighted_range(
5864 range.clone(),
5865 true,
5866 *color,
5867 Pixels::ZERO,
5868 line_end_overshoot,
5869 layout,
5870 window,
5871 );
5872 }
5873 DocumentColorsRenderMode::Border => {
5874 self.paint_highlighted_range(
5875 range.clone(),
5876 false,
5877 *color,
5878 Pixels::ZERO,
5879 line_end_overshoot,
5880 layout,
5881 window,
5882 );
5883 }
5884 }
5885 }
5886 }
5887
5888 fn paint_cursors(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5889 for cursor in &mut layout.visible_cursors {
5890 cursor.paint(layout.content_origin, window, cx);
5891 }
5892 }
5893
5894 fn paint_scrollbars(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
5895 let Some(scrollbars_layout) = layout.scrollbars_layout.take() else {
5896 return;
5897 };
5898 let any_scrollbar_dragged = self.editor.read(cx).scroll_manager.any_scrollbar_dragged();
5899
5900 for (scrollbar_layout, axis) in scrollbars_layout.iter_scrollbars() {
5901 let hitbox = &scrollbar_layout.hitbox;
5902 if scrollbars_layout.visible {
5903 let scrollbar_edges = match axis {
5904 ScrollbarAxis::Horizontal => Edges {
5905 top: Pixels::ZERO,
5906 right: Pixels::ZERO,
5907 bottom: Pixels::ZERO,
5908 left: Pixels::ZERO,
5909 },
5910 ScrollbarAxis::Vertical => Edges {
5911 top: Pixels::ZERO,
5912 right: Pixels::ZERO,
5913 bottom: Pixels::ZERO,
5914 left: ScrollbarLayout::BORDER_WIDTH,
5915 },
5916 };
5917
5918 window.paint_layer(hitbox.bounds, |window| {
5919 window.paint_quad(quad(
5920 hitbox.bounds,
5921 Corners::default(),
5922 cx.theme().colors().scrollbar_track_background,
5923 scrollbar_edges,
5924 cx.theme().colors().scrollbar_track_border,
5925 BorderStyle::Solid,
5926 ));
5927
5928 if axis == ScrollbarAxis::Vertical {
5929 let fast_markers =
5930 self.collect_fast_scrollbar_markers(layout, &scrollbar_layout, cx);
5931 // Refresh slow scrollbar markers in the background. Below, we
5932 // paint whatever markers have already been computed.
5933 self.refresh_slow_scrollbar_markers(layout, &scrollbar_layout, window, cx);
5934
5935 let markers = self.editor.read(cx).scrollbar_marker_state.markers.clone();
5936 for marker in markers.iter().chain(&fast_markers) {
5937 let mut marker = marker.clone();
5938 marker.bounds.origin += hitbox.origin;
5939 window.paint_quad(marker);
5940 }
5941 }
5942
5943 if let Some(thumb_bounds) = scrollbar_layout.thumb_bounds {
5944 let scrollbar_thumb_color = match scrollbar_layout.thumb_state {
5945 ScrollbarThumbState::Dragging => {
5946 cx.theme().colors().scrollbar_thumb_active_background
5947 }
5948 ScrollbarThumbState::Hovered => {
5949 cx.theme().colors().scrollbar_thumb_hover_background
5950 }
5951 ScrollbarThumbState::Idle => {
5952 cx.theme().colors().scrollbar_thumb_background
5953 }
5954 };
5955 window.paint_quad(quad(
5956 thumb_bounds,
5957 Corners::default(),
5958 scrollbar_thumb_color,
5959 scrollbar_edges,
5960 cx.theme().colors().scrollbar_thumb_border,
5961 BorderStyle::Solid,
5962 ));
5963
5964 if any_scrollbar_dragged {
5965 window.set_window_cursor_style(CursorStyle::Arrow);
5966 } else {
5967 window.set_cursor_style(CursorStyle::Arrow, &hitbox);
5968 }
5969 }
5970 })
5971 }
5972 }
5973
5974 window.on_mouse_event({
5975 let editor = self.editor.clone();
5976 let scrollbars_layout = scrollbars_layout.clone();
5977
5978 let mut mouse_position = window.mouse_position();
5979 move |event: &MouseMoveEvent, phase, window, cx| {
5980 if phase == DispatchPhase::Capture {
5981 return;
5982 }
5983
5984 editor.update(cx, |editor, cx| {
5985 if let Some((scrollbar_layout, axis)) = event
5986 .pressed_button
5987 .filter(|button| *button == MouseButton::Left)
5988 .and(editor.scroll_manager.dragging_scrollbar_axis())
5989 .and_then(|axis| {
5990 scrollbars_layout
5991 .iter_scrollbars()
5992 .find(|(_, a)| *a == axis)
5993 })
5994 {
5995 let ScrollbarLayout {
5996 hitbox,
5997 text_unit_size,
5998 ..
5999 } = scrollbar_layout;
6000
6001 let old_position = mouse_position.along(axis);
6002 let new_position = event.position.along(axis);
6003 if (hitbox.origin.along(axis)..hitbox.bottom_right().along(axis))
6004 .contains(&old_position)
6005 {
6006 let position = editor.scroll_position(cx).apply_along(axis, |p| {
6007 (p + (new_position - old_position) / *text_unit_size).max(0.)
6008 });
6009 editor.set_scroll_position(position, window, cx);
6010 }
6011
6012 editor.scroll_manager.show_scrollbars(window, cx);
6013 cx.stop_propagation();
6014 } else if let Some((layout, axis)) = scrollbars_layout
6015 .get_hovered_axis(window)
6016 .filter(|_| !event.dragging())
6017 {
6018 if layout.thumb_hovered(&event.position) {
6019 editor
6020 .scroll_manager
6021 .set_hovered_scroll_thumb_axis(axis, cx);
6022 } else {
6023 editor.scroll_manager.reset_scrollbar_state(cx);
6024 }
6025
6026 editor.scroll_manager.show_scrollbars(window, cx);
6027 } else {
6028 editor.scroll_manager.reset_scrollbar_state(cx);
6029 }
6030
6031 mouse_position = event.position;
6032 })
6033 }
6034 });
6035
6036 if any_scrollbar_dragged {
6037 window.on_mouse_event({
6038 let editor = self.editor.clone();
6039 move |_: &MouseUpEvent, phase, window, cx| {
6040 if phase == DispatchPhase::Capture {
6041 return;
6042 }
6043
6044 editor.update(cx, |editor, cx| {
6045 if let Some((_, axis)) = scrollbars_layout.get_hovered_axis(window) {
6046 editor
6047 .scroll_manager
6048 .set_hovered_scroll_thumb_axis(axis, cx);
6049 } else {
6050 editor.scroll_manager.reset_scrollbar_state(cx);
6051 }
6052 cx.stop_propagation();
6053 });
6054 }
6055 });
6056 } else {
6057 window.on_mouse_event({
6058 let editor = self.editor.clone();
6059
6060 move |event: &MouseDownEvent, phase, window, cx| {
6061 if phase == DispatchPhase::Capture {
6062 return;
6063 }
6064 let Some((scrollbar_layout, axis)) = scrollbars_layout.get_hovered_axis(window)
6065 else {
6066 return;
6067 };
6068
6069 let ScrollbarLayout {
6070 hitbox,
6071 visible_range,
6072 text_unit_size,
6073 thumb_bounds,
6074 ..
6075 } = scrollbar_layout;
6076
6077 let Some(thumb_bounds) = thumb_bounds else {
6078 return;
6079 };
6080
6081 editor.update(cx, |editor, cx| {
6082 editor
6083 .scroll_manager
6084 .set_dragged_scroll_thumb_axis(axis, cx);
6085
6086 let event_position = event.position.along(axis);
6087
6088 if event_position < thumb_bounds.origin.along(axis)
6089 || thumb_bounds.bottom_right().along(axis) < event_position
6090 {
6091 let center_position = ((event_position - hitbox.origin.along(axis))
6092 / *text_unit_size)
6093 .round() as u32;
6094 let start_position = center_position.saturating_sub(
6095 (visible_range.end - visible_range.start) as u32 / 2,
6096 );
6097
6098 let position = editor
6099 .scroll_position(cx)
6100 .apply_along(axis, |_| start_position as f32);
6101
6102 editor.set_scroll_position(position, window, cx);
6103 } else {
6104 editor.scroll_manager.show_scrollbars(window, cx);
6105 }
6106
6107 cx.stop_propagation();
6108 });
6109 }
6110 });
6111 }
6112 }
6113
6114 fn collect_fast_scrollbar_markers(
6115 &self,
6116 layout: &EditorLayout,
6117 scrollbar_layout: &ScrollbarLayout,
6118 cx: &mut App,
6119 ) -> Vec<PaintQuad> {
6120 const LIMIT: usize = 100;
6121 if !EditorSettings::get_global(cx).scrollbar.cursors || layout.cursors.len() > LIMIT {
6122 return vec![];
6123 }
6124 let cursor_ranges = layout
6125 .cursors
6126 .iter()
6127 .map(|(point, color)| ColoredRange {
6128 start: point.row(),
6129 end: point.row(),
6130 color: *color,
6131 })
6132 .collect_vec();
6133 scrollbar_layout.marker_quads_for_ranges(cursor_ranges, None)
6134 }
6135
6136 fn refresh_slow_scrollbar_markers(
6137 &self,
6138 layout: &EditorLayout,
6139 scrollbar_layout: &ScrollbarLayout,
6140 window: &mut Window,
6141 cx: &mut App,
6142 ) {
6143 self.editor.update(cx, |editor, cx| {
6144 if !editor.is_singleton(cx)
6145 || !editor
6146 .scrollbar_marker_state
6147 .should_refresh(scrollbar_layout.hitbox.size)
6148 {
6149 return;
6150 }
6151
6152 let scrollbar_layout = scrollbar_layout.clone();
6153 let background_highlights = editor.background_highlights.clone();
6154 let snapshot = layout.position_map.snapshot.clone();
6155 let theme = cx.theme().clone();
6156 let scrollbar_settings = EditorSettings::get_global(cx).scrollbar;
6157
6158 editor.scrollbar_marker_state.dirty = false;
6159 editor.scrollbar_marker_state.pending_refresh =
6160 Some(cx.spawn_in(window, async move |editor, cx| {
6161 let scrollbar_size = scrollbar_layout.hitbox.size;
6162 let scrollbar_markers = cx
6163 .background_spawn(async move {
6164 let max_point = snapshot.display_snapshot.buffer_snapshot.max_point();
6165 let mut marker_quads = Vec::new();
6166 if scrollbar_settings.git_diff {
6167 let marker_row_ranges =
6168 snapshot.buffer_snapshot.diff_hunks().map(|hunk| {
6169 let start_display_row =
6170 MultiBufferPoint::new(hunk.row_range.start.0, 0)
6171 .to_display_point(&snapshot.display_snapshot)
6172 .row();
6173 let mut end_display_row =
6174 MultiBufferPoint::new(hunk.row_range.end.0, 0)
6175 .to_display_point(&snapshot.display_snapshot)
6176 .row();
6177 if end_display_row != start_display_row {
6178 end_display_row.0 -= 1;
6179 }
6180 let color = match &hunk.status().kind {
6181 DiffHunkStatusKind::Added => {
6182 theme.colors().version_control_added
6183 }
6184 DiffHunkStatusKind::Modified => {
6185 theme.colors().version_control_modified
6186 }
6187 DiffHunkStatusKind::Deleted => {
6188 theme.colors().version_control_deleted
6189 }
6190 };
6191 ColoredRange {
6192 start: start_display_row,
6193 end: end_display_row,
6194 color,
6195 }
6196 });
6197
6198 marker_quads.extend(
6199 scrollbar_layout
6200 .marker_quads_for_ranges(marker_row_ranges, Some(0)),
6201 );
6202 }
6203
6204 for (background_highlight_id, (_, background_ranges)) in
6205 background_highlights.iter()
6206 {
6207 let is_search_highlights = *background_highlight_id
6208 == HighlightKey::Type(TypeId::of::<BufferSearchHighlights>());
6209 let is_text_highlights = *background_highlight_id
6210 == HighlightKey::Type(TypeId::of::<SelectedTextHighlight>());
6211 let is_symbol_occurrences = *background_highlight_id
6212 == HighlightKey::Type(TypeId::of::<DocumentHighlightRead>())
6213 || *background_highlight_id
6214 == HighlightKey::Type(
6215 TypeId::of::<DocumentHighlightWrite>(),
6216 );
6217 if (is_search_highlights && scrollbar_settings.search_results)
6218 || (is_text_highlights && scrollbar_settings.selected_text)
6219 || (is_symbol_occurrences && scrollbar_settings.selected_symbol)
6220 {
6221 let mut color = theme.status().info;
6222 if is_symbol_occurrences {
6223 color.fade_out(0.5);
6224 }
6225 let marker_row_ranges = background_ranges.iter().map(|range| {
6226 let display_start = range
6227 .start
6228 .to_display_point(&snapshot.display_snapshot);
6229 let display_end =
6230 range.end.to_display_point(&snapshot.display_snapshot);
6231 ColoredRange {
6232 start: display_start.row(),
6233 end: display_end.row(),
6234 color,
6235 }
6236 });
6237 marker_quads.extend(
6238 scrollbar_layout
6239 .marker_quads_for_ranges(marker_row_ranges, Some(1)),
6240 );
6241 }
6242 }
6243
6244 if scrollbar_settings.diagnostics != ScrollbarDiagnostics::None {
6245 let diagnostics = snapshot
6246 .buffer_snapshot
6247 .diagnostics_in_range::<Point>(Point::zero()..max_point)
6248 // Don't show diagnostics the user doesn't care about
6249 .filter(|diagnostic| {
6250 match (
6251 scrollbar_settings.diagnostics,
6252 diagnostic.diagnostic.severity,
6253 ) {
6254 (ScrollbarDiagnostics::All, _) => true,
6255 (
6256 ScrollbarDiagnostics::Error,
6257 lsp::DiagnosticSeverity::ERROR,
6258 ) => true,
6259 (
6260 ScrollbarDiagnostics::Warning,
6261 lsp::DiagnosticSeverity::ERROR
6262 | lsp::DiagnosticSeverity::WARNING,
6263 ) => true,
6264 (
6265 ScrollbarDiagnostics::Information,
6266 lsp::DiagnosticSeverity::ERROR
6267 | lsp::DiagnosticSeverity::WARNING
6268 | lsp::DiagnosticSeverity::INFORMATION,
6269 ) => true,
6270 (_, _) => false,
6271 }
6272 })
6273 // We want to sort by severity, in order to paint the most severe diagnostics last.
6274 .sorted_by_key(|diagnostic| {
6275 std::cmp::Reverse(diagnostic.diagnostic.severity)
6276 });
6277
6278 let marker_row_ranges = diagnostics.into_iter().map(|diagnostic| {
6279 let start_display = diagnostic
6280 .range
6281 .start
6282 .to_display_point(&snapshot.display_snapshot);
6283 let end_display = diagnostic
6284 .range
6285 .end
6286 .to_display_point(&snapshot.display_snapshot);
6287 let color = match diagnostic.diagnostic.severity {
6288 lsp::DiagnosticSeverity::ERROR => theme.status().error,
6289 lsp::DiagnosticSeverity::WARNING => theme.status().warning,
6290 lsp::DiagnosticSeverity::INFORMATION => theme.status().info,
6291 _ => theme.status().hint,
6292 };
6293 ColoredRange {
6294 start: start_display.row(),
6295 end: end_display.row(),
6296 color,
6297 }
6298 });
6299 marker_quads.extend(
6300 scrollbar_layout
6301 .marker_quads_for_ranges(marker_row_ranges, Some(2)),
6302 );
6303 }
6304
6305 Arc::from(marker_quads)
6306 })
6307 .await;
6308
6309 editor.update(cx, |editor, cx| {
6310 editor.scrollbar_marker_state.markers = scrollbar_markers;
6311 editor.scrollbar_marker_state.scrollbar_size = scrollbar_size;
6312 editor.scrollbar_marker_state.pending_refresh = None;
6313 cx.notify();
6314 })?;
6315
6316 Ok(())
6317 }));
6318 });
6319 }
6320
6321 fn paint_highlighted_range(
6322 &self,
6323 range: Range<DisplayPoint>,
6324 fill: bool,
6325 color: Hsla,
6326 corner_radius: Pixels,
6327 line_end_overshoot: Pixels,
6328 layout: &EditorLayout,
6329 window: &mut Window,
6330 ) {
6331 let start_row = layout.visible_display_row_range.start;
6332 let end_row = layout.visible_display_row_range.end;
6333 if range.start != range.end {
6334 let row_range = if range.end.column() == 0 {
6335 cmp::max(range.start.row(), start_row)..cmp::min(range.end.row(), end_row)
6336 } else {
6337 cmp::max(range.start.row(), start_row)
6338 ..cmp::min(range.end.row().next_row(), end_row)
6339 };
6340
6341 let highlighted_range = HighlightedRange {
6342 color,
6343 line_height: layout.position_map.line_height,
6344 corner_radius,
6345 start_y: layout.content_origin.y
6346 + row_range.start.as_f32() * layout.position_map.line_height
6347 - layout.position_map.scroll_pixel_position.y,
6348 lines: row_range
6349 .iter_rows()
6350 .map(|row| {
6351 let line_layout =
6352 &layout.position_map.line_layouts[row.minus(start_row) as usize];
6353 HighlightedRangeLine {
6354 start_x: if row == range.start.row() {
6355 layout.content_origin.x
6356 + line_layout.x_for_index(range.start.column() as usize)
6357 - layout.position_map.scroll_pixel_position.x
6358 } else {
6359 layout.content_origin.x
6360 - layout.position_map.scroll_pixel_position.x
6361 },
6362 end_x: if row == range.end.row() {
6363 layout.content_origin.x
6364 + line_layout.x_for_index(range.end.column() as usize)
6365 - layout.position_map.scroll_pixel_position.x
6366 } else {
6367 layout.content_origin.x + line_layout.width + line_end_overshoot
6368 - layout.position_map.scroll_pixel_position.x
6369 },
6370 }
6371 })
6372 .collect(),
6373 };
6374
6375 highlighted_range.paint(fill, layout.position_map.text_hitbox.bounds, window);
6376 }
6377 }
6378
6379 fn paint_inline_diagnostics(
6380 &mut self,
6381 layout: &mut EditorLayout,
6382 window: &mut Window,
6383 cx: &mut App,
6384 ) {
6385 for mut inline_diagnostic in layout.inline_diagnostics.drain() {
6386 inline_diagnostic.1.paint(window, cx);
6387 }
6388 }
6389
6390 fn paint_inline_blame(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6391 if let Some(mut blame_layout) = layout.inline_blame_layout.take() {
6392 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6393 blame_layout.element.paint(window, cx);
6394 })
6395 }
6396 }
6397
6398 fn paint_inline_code_actions(
6399 &mut self,
6400 layout: &mut EditorLayout,
6401 window: &mut Window,
6402 cx: &mut App,
6403 ) {
6404 if let Some(mut inline_code_actions) = layout.inline_code_actions.take() {
6405 window.paint_layer(layout.position_map.text_hitbox.bounds, |window| {
6406 inline_code_actions.paint(window, cx);
6407 })
6408 }
6409 }
6410
6411 fn paint_diff_hunk_controls(
6412 &mut self,
6413 layout: &mut EditorLayout,
6414 window: &mut Window,
6415 cx: &mut App,
6416 ) {
6417 for mut diff_hunk_control in layout.diff_hunk_controls.drain(..) {
6418 diff_hunk_control.paint(window, cx);
6419 }
6420 }
6421
6422 fn paint_minimap(&self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6423 if let Some(mut layout) = layout.minimap.take() {
6424 let minimap_hitbox = layout.thumb_layout.hitbox.clone();
6425 let dragging_minimap = self.editor.read(cx).scroll_manager.is_dragging_minimap();
6426
6427 window.paint_layer(layout.thumb_layout.hitbox.bounds, |window| {
6428 window.with_element_namespace("minimap", |window| {
6429 layout.minimap.paint(window, cx);
6430 if let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds {
6431 let minimap_thumb_color = match layout.thumb_layout.thumb_state {
6432 ScrollbarThumbState::Idle => {
6433 cx.theme().colors().minimap_thumb_background
6434 }
6435 ScrollbarThumbState::Hovered => {
6436 cx.theme().colors().minimap_thumb_hover_background
6437 }
6438 ScrollbarThumbState::Dragging => {
6439 cx.theme().colors().minimap_thumb_active_background
6440 }
6441 };
6442 let minimap_thumb_border = match layout.thumb_border_style {
6443 MinimapThumbBorder::Full => Edges::all(ScrollbarLayout::BORDER_WIDTH),
6444 MinimapThumbBorder::LeftOnly => Edges {
6445 left: ScrollbarLayout::BORDER_WIDTH,
6446 ..Default::default()
6447 },
6448 MinimapThumbBorder::LeftOpen => Edges {
6449 right: ScrollbarLayout::BORDER_WIDTH,
6450 top: ScrollbarLayout::BORDER_WIDTH,
6451 bottom: ScrollbarLayout::BORDER_WIDTH,
6452 ..Default::default()
6453 },
6454 MinimapThumbBorder::RightOpen => Edges {
6455 left: ScrollbarLayout::BORDER_WIDTH,
6456 top: ScrollbarLayout::BORDER_WIDTH,
6457 bottom: ScrollbarLayout::BORDER_WIDTH,
6458 ..Default::default()
6459 },
6460 MinimapThumbBorder::None => Default::default(),
6461 };
6462
6463 window.paint_layer(minimap_hitbox.bounds, |window| {
6464 window.paint_quad(quad(
6465 thumb_bounds,
6466 Corners::default(),
6467 minimap_thumb_color,
6468 minimap_thumb_border,
6469 cx.theme().colors().minimap_thumb_border,
6470 BorderStyle::Solid,
6471 ));
6472 });
6473 }
6474 });
6475 });
6476
6477 if dragging_minimap {
6478 window.set_window_cursor_style(CursorStyle::Arrow);
6479 } else {
6480 window.set_cursor_style(CursorStyle::Arrow, &minimap_hitbox);
6481 }
6482
6483 let minimap_axis = ScrollbarAxis::Vertical;
6484 let pixels_per_line = (minimap_hitbox.size.height / layout.max_scroll_top)
6485 .min(layout.minimap_line_height);
6486
6487 let mut mouse_position = window.mouse_position();
6488
6489 window.on_mouse_event({
6490 let editor = self.editor.clone();
6491
6492 let minimap_hitbox = minimap_hitbox.clone();
6493
6494 move |event: &MouseMoveEvent, phase, window, cx| {
6495 if phase == DispatchPhase::Capture {
6496 return;
6497 }
6498
6499 editor.update(cx, |editor, cx| {
6500 if event.pressed_button == Some(MouseButton::Left)
6501 && editor.scroll_manager.is_dragging_minimap()
6502 {
6503 let old_position = mouse_position.along(minimap_axis);
6504 let new_position = event.position.along(minimap_axis);
6505 if (minimap_hitbox.origin.along(minimap_axis)
6506 ..minimap_hitbox.bottom_right().along(minimap_axis))
6507 .contains(&old_position)
6508 {
6509 let position =
6510 editor.scroll_position(cx).apply_along(minimap_axis, |p| {
6511 (p + (new_position - old_position) / pixels_per_line)
6512 .max(0.)
6513 });
6514 editor.set_scroll_position(position, window, cx);
6515 }
6516 cx.stop_propagation();
6517 } else {
6518 if minimap_hitbox.is_hovered(window) {
6519 editor.scroll_manager.set_is_hovering_minimap_thumb(
6520 !event.dragging()
6521 && layout
6522 .thumb_layout
6523 .thumb_bounds
6524 .is_some_and(|bounds| bounds.contains(&event.position)),
6525 cx,
6526 );
6527
6528 // Stop hover events from propagating to the
6529 // underlying editor if the minimap hitbox is hovered
6530 if !event.dragging() {
6531 cx.stop_propagation();
6532 }
6533 } else {
6534 editor.scroll_manager.hide_minimap_thumb(cx);
6535 }
6536 }
6537 mouse_position = event.position;
6538 });
6539 }
6540 });
6541
6542 if dragging_minimap {
6543 window.on_mouse_event({
6544 let editor = self.editor.clone();
6545 move |event: &MouseUpEvent, phase, window, cx| {
6546 if phase == DispatchPhase::Capture {
6547 return;
6548 }
6549
6550 editor.update(cx, |editor, cx| {
6551 if minimap_hitbox.is_hovered(window) {
6552 editor.scroll_manager.set_is_hovering_minimap_thumb(
6553 layout
6554 .thumb_layout
6555 .thumb_bounds
6556 .is_some_and(|bounds| bounds.contains(&event.position)),
6557 cx,
6558 );
6559 } else {
6560 editor.scroll_manager.hide_minimap_thumb(cx);
6561 }
6562 cx.stop_propagation();
6563 });
6564 }
6565 });
6566 } else {
6567 window.on_mouse_event({
6568 let editor = self.editor.clone();
6569
6570 move |event: &MouseDownEvent, phase, window, cx| {
6571 if phase == DispatchPhase::Capture || !minimap_hitbox.is_hovered(window) {
6572 return;
6573 }
6574
6575 let event_position = event.position;
6576
6577 let Some(thumb_bounds) = layout.thumb_layout.thumb_bounds else {
6578 return;
6579 };
6580
6581 editor.update(cx, |editor, cx| {
6582 if !thumb_bounds.contains(&event_position) {
6583 let click_position =
6584 event_position.relative_to(&minimap_hitbox.origin).y;
6585
6586 let top_position = (click_position
6587 - thumb_bounds.size.along(minimap_axis) / 2.0)
6588 .max(Pixels::ZERO);
6589
6590 let scroll_offset = (layout.minimap_scroll_top
6591 + top_position / layout.minimap_line_height)
6592 .min(layout.max_scroll_top);
6593
6594 let scroll_position = editor
6595 .scroll_position(cx)
6596 .apply_along(minimap_axis, |_| scroll_offset);
6597 editor.set_scroll_position(scroll_position, window, cx);
6598 }
6599
6600 editor.scroll_manager.set_is_dragging_minimap(cx);
6601 cx.stop_propagation();
6602 });
6603 }
6604 });
6605 }
6606 }
6607 }
6608
6609 fn paint_blocks(&mut self, layout: &mut EditorLayout, window: &mut Window, cx: &mut App) {
6610 for mut block in layout.blocks.drain(..) {
6611 if block.overlaps_gutter {
6612 block.element.paint(window, cx);
6613 } else {
6614 let mut bounds = layout.hitbox.bounds;
6615 bounds.origin.x += layout.gutter_hitbox.bounds.size.width;
6616 window.with_content_mask(Some(ContentMask { bounds }), |window| {
6617 block.element.paint(window, cx);
6618 })
6619 }
6620 }
6621 }
6622
6623 fn paint_inline_completion_popover(
6624 &mut self,
6625 layout: &mut EditorLayout,
6626 window: &mut Window,
6627 cx: &mut App,
6628 ) {
6629 if let Some(inline_completion_popover) = layout.inline_completion_popover.as_mut() {
6630 inline_completion_popover.paint(window, cx);
6631 }
6632 }
6633
6634 fn paint_mouse_context_menu(
6635 &mut self,
6636 layout: &mut EditorLayout,
6637 window: &mut Window,
6638 cx: &mut App,
6639 ) {
6640 if let Some(mouse_context_menu) = layout.mouse_context_menu.as_mut() {
6641 mouse_context_menu.paint(window, cx);
6642 }
6643 }
6644
6645 fn paint_scroll_wheel_listener(
6646 &mut self,
6647 layout: &EditorLayout,
6648 window: &mut Window,
6649 cx: &mut App,
6650 ) {
6651 window.on_mouse_event({
6652 let position_map = layout.position_map.clone();
6653 let editor = self.editor.clone();
6654 let hitbox = layout.hitbox.clone();
6655 let mut delta = ScrollDelta::default();
6656
6657 // Set a minimum scroll_sensitivity of 0.01 to make sure the user doesn't
6658 // accidentally turn off their scrolling.
6659 let base_scroll_sensitivity =
6660 EditorSettings::get_global(cx).scroll_sensitivity.max(0.01);
6661
6662 // Use a minimum fast_scroll_sensitivity for same reason above
6663 let fast_scroll_sensitivity = EditorSettings::get_global(cx)
6664 .fast_scroll_sensitivity
6665 .max(0.01);
6666
6667 move |event: &ScrollWheelEvent, phase, window, cx| {
6668 let scroll_sensitivity = {
6669 if event.modifiers.alt {
6670 fast_scroll_sensitivity
6671 } else {
6672 base_scroll_sensitivity
6673 }
6674 };
6675
6676 if phase == DispatchPhase::Bubble && hitbox.should_handle_scroll(window) {
6677 delta = delta.coalesce(event.delta);
6678 editor.update(cx, |editor, cx| {
6679 let position_map: &PositionMap = &position_map;
6680
6681 let line_height = position_map.line_height;
6682 let max_glyph_width = position_map.em_width;
6683 let (delta, axis) = match delta {
6684 gpui::ScrollDelta::Pixels(mut pixels) => {
6685 //Trackpad
6686 let axis = position_map.snapshot.ongoing_scroll.filter(&mut pixels);
6687 (pixels, axis)
6688 }
6689
6690 gpui::ScrollDelta::Lines(lines) => {
6691 //Not trackpad
6692 let pixels =
6693 point(lines.x * max_glyph_width, lines.y * line_height);
6694 (pixels, None)
6695 }
6696 };
6697
6698 let current_scroll_position = position_map.snapshot.scroll_position();
6699 let x = (current_scroll_position.x * max_glyph_width
6700 - (delta.x * scroll_sensitivity))
6701 / max_glyph_width;
6702 let y = (current_scroll_position.y * line_height
6703 - (delta.y * scroll_sensitivity))
6704 / line_height;
6705 let mut scroll_position =
6706 point(x, y).clamp(&point(0., 0.), &position_map.scroll_max);
6707 let forbid_vertical_scroll = editor.scroll_manager.forbid_vertical_scroll();
6708 if forbid_vertical_scroll {
6709 scroll_position.y = current_scroll_position.y;
6710 }
6711
6712 if scroll_position != current_scroll_position {
6713 editor.scroll(scroll_position, axis, window, cx);
6714 cx.stop_propagation();
6715 } else if y < 0. {
6716 // Due to clamping, we may fail to detect cases of overscroll to the top;
6717 // We want the scroll manager to get an update in such cases and detect the change of direction
6718 // on the next frame.
6719 cx.notify();
6720 }
6721 });
6722 }
6723 }
6724 });
6725 }
6726
6727 fn paint_mouse_listeners(&mut self, layout: &EditorLayout, window: &mut Window, cx: &mut App) {
6728 if self.editor.read(cx).mode.is_minimap() {
6729 return;
6730 }
6731
6732 self.paint_scroll_wheel_listener(layout, window, cx);
6733
6734 window.on_mouse_event({
6735 let position_map = layout.position_map.clone();
6736 let editor = self.editor.clone();
6737 let diff_hunk_range =
6738 layout
6739 .display_hunks
6740 .iter()
6741 .find_map(|(hunk, hunk_hitbox)| match hunk {
6742 DisplayDiffHunk::Folded { .. } => None,
6743 DisplayDiffHunk::Unfolded {
6744 multi_buffer_range, ..
6745 } => {
6746 if hunk_hitbox
6747 .as_ref()
6748 .map(|hitbox| hitbox.is_hovered(window))
6749 .unwrap_or(false)
6750 {
6751 Some(multi_buffer_range.clone())
6752 } else {
6753 None
6754 }
6755 }
6756 });
6757 let line_numbers = layout.line_numbers.clone();
6758
6759 move |event: &MouseDownEvent, phase, window, cx| {
6760 if phase == DispatchPhase::Bubble {
6761 match event.button {
6762 MouseButton::Left => editor.update(cx, |editor, cx| {
6763 let pending_mouse_down = editor
6764 .pending_mouse_down
6765 .get_or_insert_with(Default::default)
6766 .clone();
6767
6768 *pending_mouse_down.borrow_mut() = Some(event.clone());
6769
6770 Self::mouse_left_down(
6771 editor,
6772 event,
6773 diff_hunk_range.clone(),
6774 &position_map,
6775 line_numbers.as_ref(),
6776 window,
6777 cx,
6778 );
6779 }),
6780 MouseButton::Right => editor.update(cx, |editor, cx| {
6781 Self::mouse_right_down(editor, event, &position_map, window, cx);
6782 }),
6783 MouseButton::Middle => editor.update(cx, |editor, cx| {
6784 Self::mouse_middle_down(editor, event, &position_map, window, cx);
6785 }),
6786 _ => {}
6787 };
6788 }
6789 }
6790 });
6791
6792 window.on_mouse_event({
6793 let editor = self.editor.clone();
6794 let position_map = layout.position_map.clone();
6795
6796 move |event: &MouseUpEvent, phase, window, cx| {
6797 if phase == DispatchPhase::Bubble {
6798 editor.update(cx, |editor, cx| {
6799 Self::mouse_up(editor, event, &position_map, window, cx)
6800 });
6801 }
6802 }
6803 });
6804
6805 window.on_mouse_event({
6806 let editor = self.editor.clone();
6807 let position_map = layout.position_map.clone();
6808 let mut captured_mouse_down = None;
6809
6810 move |event: &MouseUpEvent, phase, window, cx| match phase {
6811 // Clear the pending mouse down during the capture phase,
6812 // so that it happens even if another event handler stops
6813 // propagation.
6814 DispatchPhase::Capture => editor.update(cx, |editor, _cx| {
6815 let pending_mouse_down = editor
6816 .pending_mouse_down
6817 .get_or_insert_with(Default::default)
6818 .clone();
6819
6820 let mut pending_mouse_down = pending_mouse_down.borrow_mut();
6821 if pending_mouse_down.is_some() && position_map.text_hitbox.is_hovered(window) {
6822 captured_mouse_down = pending_mouse_down.take();
6823 window.refresh();
6824 }
6825 }),
6826 // Fire click handlers during the bubble phase.
6827 DispatchPhase::Bubble => editor.update(cx, |editor, cx| {
6828 if let Some(mouse_down) = captured_mouse_down.take() {
6829 let event = ClickEvent {
6830 down: mouse_down,
6831 up: event.clone(),
6832 };
6833 Self::click(editor, &event, &position_map, window, cx);
6834 }
6835 }),
6836 }
6837 });
6838
6839 window.on_mouse_event({
6840 let position_map = layout.position_map.clone();
6841 let editor = self.editor.clone();
6842
6843 move |event: &MouseMoveEvent, phase, window, cx| {
6844 if phase == DispatchPhase::Bubble {
6845 editor.update(cx, |editor, cx| {
6846 if editor.hover_state.focused(window, cx) {
6847 return;
6848 }
6849 if event.pressed_button == Some(MouseButton::Left)
6850 || event.pressed_button == Some(MouseButton::Middle)
6851 {
6852 Self::mouse_dragged(editor, event, &position_map, window, cx)
6853 }
6854
6855 Self::mouse_moved(editor, event, &position_map, window, cx)
6856 });
6857 }
6858 }
6859 });
6860 }
6861
6862 fn scrollbar_left(&self, bounds: &Bounds<Pixels>) -> Pixels {
6863 bounds.top_right().x - self.style.scrollbar_width
6864 }
6865
6866 fn column_pixels(&self, column: usize, window: &mut Window, _: &mut App) -> Pixels {
6867 let style = &self.style;
6868 let font_size = style.text.font_size.to_pixels(window.rem_size());
6869 let layout = window.text_system().shape_line(
6870 SharedString::from(" ".repeat(column)),
6871 font_size,
6872 &[TextRun {
6873 len: column,
6874 font: style.text.font(),
6875 color: Hsla::default(),
6876 background_color: None,
6877 underline: None,
6878 strikethrough: None,
6879 }],
6880 );
6881
6882 layout.width
6883 }
6884
6885 fn max_line_number_width(
6886 &self,
6887 snapshot: &EditorSnapshot,
6888 window: &mut Window,
6889 cx: &mut App,
6890 ) -> Pixels {
6891 let digit_count = snapshot.widest_line_number().ilog10() + 1;
6892 self.column_pixels(digit_count as usize, window, cx)
6893 }
6894
6895 fn shape_line_number(
6896 &self,
6897 text: SharedString,
6898 color: Hsla,
6899 window: &mut Window,
6900 ) -> ShapedLine {
6901 let run = TextRun {
6902 len: text.len(),
6903 font: self.style.text.font(),
6904 color,
6905 background_color: None,
6906 underline: None,
6907 strikethrough: None,
6908 };
6909 window.text_system().shape_line(
6910 text,
6911 self.style.text.font_size.to_pixels(window.rem_size()),
6912 &[run],
6913 )
6914 }
6915
6916 fn diff_hunk_hollow(status: DiffHunkStatus, cx: &mut App) -> bool {
6917 let unstaged = status.has_secondary_hunk();
6918 let unstaged_hollow = ProjectSettings::get_global(cx)
6919 .git
6920 .hunk_style
6921 .map_or(false, |style| {
6922 matches!(style, GitHunkStyleSetting::UnstagedHollow)
6923 });
6924
6925 unstaged == unstaged_hollow
6926 }
6927}
6928
6929fn header_jump_data(
6930 snapshot: &EditorSnapshot,
6931 block_row_start: DisplayRow,
6932 height: u32,
6933 for_excerpt: &ExcerptInfo,
6934) -> JumpData {
6935 let range = &for_excerpt.range;
6936 let buffer = &for_excerpt.buffer;
6937 let jump_anchor = range.primary.start;
6938
6939 let excerpt_start = range.context.start;
6940 let jump_position = language::ToPoint::to_point(&jump_anchor, buffer);
6941 let rows_from_excerpt_start = if jump_anchor == excerpt_start {
6942 0
6943 } else {
6944 let excerpt_start_point = language::ToPoint::to_point(&excerpt_start, buffer);
6945 jump_position.row.saturating_sub(excerpt_start_point.row)
6946 };
6947
6948 let line_offset_from_top = (block_row_start.0 + height + rows_from_excerpt_start)
6949 .saturating_sub(
6950 snapshot
6951 .scroll_anchor
6952 .scroll_position(&snapshot.display_snapshot)
6953 .y as u32,
6954 );
6955
6956 JumpData::MultiBufferPoint {
6957 excerpt_id: for_excerpt.id,
6958 anchor: jump_anchor,
6959 position: jump_position,
6960 line_offset_from_top,
6961 }
6962}
6963
6964pub struct AcceptEditPredictionBinding(pub(crate) Option<gpui::KeyBinding>);
6965
6966impl AcceptEditPredictionBinding {
6967 pub fn keystroke(&self) -> Option<&Keystroke> {
6968 if let Some(binding) = self.0.as_ref() {
6969 match &binding.keystrokes() {
6970 [keystroke, ..] => Some(keystroke),
6971 _ => None,
6972 }
6973 } else {
6974 None
6975 }
6976 }
6977}
6978
6979fn prepaint_gutter_button(
6980 button: IconButton,
6981 row: DisplayRow,
6982 line_height: Pixels,
6983 gutter_dimensions: &GutterDimensions,
6984 scroll_pixel_position: gpui::Point<Pixels>,
6985 gutter_hitbox: &Hitbox,
6986 display_hunks: &[(DisplayDiffHunk, Option<Hitbox>)],
6987 window: &mut Window,
6988 cx: &mut App,
6989) -> AnyElement {
6990 let mut button = button.into_any_element();
6991
6992 let available_space = size(
6993 AvailableSpace::MinContent,
6994 AvailableSpace::Definite(line_height),
6995 );
6996 let indicator_size = button.layout_as_root(available_space, window, cx);
6997
6998 let blame_width = gutter_dimensions.git_blame_entries_width;
6999 let gutter_width = display_hunks
7000 .binary_search_by(|(hunk, _)| match hunk {
7001 DisplayDiffHunk::Folded { display_row } => display_row.cmp(&row),
7002 DisplayDiffHunk::Unfolded {
7003 display_row_range, ..
7004 } => {
7005 if display_row_range.end <= row {
7006 Ordering::Less
7007 } else if display_row_range.start > row {
7008 Ordering::Greater
7009 } else {
7010 Ordering::Equal
7011 }
7012 }
7013 })
7014 .ok()
7015 .and_then(|ix| Some(display_hunks[ix].1.as_ref()?.size.width));
7016 let left_offset = blame_width.max(gutter_width).unwrap_or_default();
7017
7018 let mut x = left_offset;
7019 let available_width = gutter_dimensions.margin + gutter_dimensions.left_padding
7020 - indicator_size.width
7021 - left_offset;
7022 x += available_width / 2.;
7023
7024 let mut y = row.as_f32() * line_height - scroll_pixel_position.y;
7025 y += (line_height - indicator_size.height) / 2.;
7026
7027 button.prepaint_as_root(
7028 gutter_hitbox.origin + point(x, y),
7029 available_space,
7030 window,
7031 cx,
7032 );
7033 button
7034}
7035
7036fn render_inline_blame_entry(
7037 blame_entry: BlameEntry,
7038 style: &EditorStyle,
7039 cx: &mut App,
7040) -> Option<AnyElement> {
7041 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
7042 renderer.render_inline_blame_entry(&style.text, blame_entry, cx)
7043}
7044
7045fn render_blame_entry_popover(
7046 blame_entry: BlameEntry,
7047 scroll_handle: ScrollHandle,
7048 commit_message: Option<ParsedCommitMessage>,
7049 markdown: Entity<Markdown>,
7050 workspace: WeakEntity<Workspace>,
7051 blame: &Entity<GitBlame>,
7052 window: &mut Window,
7053 cx: &mut App,
7054) -> Option<AnyElement> {
7055 let renderer = cx.global::<GlobalBlameRenderer>().0.clone();
7056 let blame = blame.read(cx);
7057 let repository = blame.repository(cx)?.clone();
7058 renderer.render_blame_entry_popover(
7059 blame_entry,
7060 scroll_handle,
7061 commit_message,
7062 markdown,
7063 repository,
7064 workspace,
7065 window,
7066 cx,
7067 )
7068}
7069
7070fn render_blame_entry(
7071 ix: usize,
7072 blame: &Entity<GitBlame>,
7073 blame_entry: BlameEntry,
7074 style: &EditorStyle,
7075 last_used_color: &mut Option<(PlayerColor, Oid)>,
7076 editor: Entity<Editor>,
7077 workspace: Entity<Workspace>,
7078 renderer: Arc<dyn BlameRenderer>,
7079 cx: &mut App,
7080) -> Option<AnyElement> {
7081 let mut sha_color = cx
7082 .theme()
7083 .players()
7084 .color_for_participant(blame_entry.sha.into());
7085
7086 // If the last color we used is the same as the one we get for this line, but
7087 // the commit SHAs are different, then we try again to get a different color.
7088 match *last_used_color {
7089 Some((color, sha)) if sha != blame_entry.sha && color.cursor == sha_color.cursor => {
7090 let index: u32 = blame_entry.sha.into();
7091 sha_color = cx.theme().players().color_for_participant(index + 1);
7092 }
7093 _ => {}
7094 };
7095 last_used_color.replace((sha_color, blame_entry.sha));
7096
7097 let blame = blame.read(cx);
7098 let details = blame.details_for_entry(&blame_entry);
7099 let repository = blame.repository(cx)?;
7100 renderer.render_blame_entry(
7101 &style.text,
7102 blame_entry,
7103 details,
7104 repository,
7105 workspace.downgrade(),
7106 editor,
7107 ix,
7108 sha_color.cursor,
7109 cx,
7110 )
7111}
7112
7113#[derive(Debug)]
7114pub(crate) struct LineWithInvisibles {
7115 fragments: SmallVec<[LineFragment; 1]>,
7116 invisibles: Vec<Invisible>,
7117 len: usize,
7118 pub(crate) width: Pixels,
7119 font_size: Pixels,
7120}
7121
7122enum LineFragment {
7123 Text(ShapedLine),
7124 Element {
7125 id: ChunkRendererId,
7126 element: Option<AnyElement>,
7127 size: Size<Pixels>,
7128 len: usize,
7129 },
7130}
7131
7132impl fmt::Debug for LineFragment {
7133 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
7134 match self {
7135 LineFragment::Text(shaped_line) => f.debug_tuple("Text").field(shaped_line).finish(),
7136 LineFragment::Element { size, len, .. } => f
7137 .debug_struct("Element")
7138 .field("size", size)
7139 .field("len", len)
7140 .finish(),
7141 }
7142 }
7143}
7144
7145impl LineWithInvisibles {
7146 fn from_chunks<'a>(
7147 chunks: impl Iterator<Item = HighlightedChunk<'a>>,
7148 editor_style: &EditorStyle,
7149 max_line_len: usize,
7150 max_line_count: usize,
7151 editor_mode: &EditorMode,
7152 text_width: Pixels,
7153 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
7154 window: &mut Window,
7155 cx: &mut App,
7156 ) -> Vec<Self> {
7157 let text_style = &editor_style.text;
7158 let mut layouts = Vec::with_capacity(max_line_count);
7159 let mut fragments: SmallVec<[LineFragment; 1]> = SmallVec::new();
7160 let mut line = String::new();
7161 let mut invisibles = Vec::new();
7162 let mut width = Pixels::ZERO;
7163 let mut len = 0;
7164 let mut styles = Vec::new();
7165 let mut non_whitespace_added = false;
7166 let mut row = 0;
7167 let mut line_exceeded_max_len = false;
7168 let font_size = text_style.font_size.to_pixels(window.rem_size());
7169
7170 let ellipsis = SharedString::from("⋯");
7171
7172 for highlighted_chunk in chunks.chain([HighlightedChunk {
7173 text: "\n",
7174 style: None,
7175 is_tab: false,
7176 is_inlay: false,
7177 replacement: None,
7178 }]) {
7179 if let Some(replacement) = highlighted_chunk.replacement {
7180 if !line.is_empty() {
7181 let shaped_line =
7182 window
7183 .text_system()
7184 .shape_line(line.clone().into(), font_size, &styles);
7185 width += shaped_line.width;
7186 len += shaped_line.len;
7187 fragments.push(LineFragment::Text(shaped_line));
7188 line.clear();
7189 styles.clear();
7190 }
7191
7192 match replacement {
7193 ChunkReplacement::Renderer(renderer) => {
7194 let available_width = if renderer.constrain_width {
7195 let chunk = if highlighted_chunk.text == ellipsis.as_ref() {
7196 ellipsis.clone()
7197 } else {
7198 SharedString::from(Arc::from(highlighted_chunk.text))
7199 };
7200 let shaped_line = window.text_system().shape_line(
7201 chunk,
7202 font_size,
7203 &[text_style.to_run(highlighted_chunk.text.len())],
7204 );
7205 AvailableSpace::Definite(shaped_line.width)
7206 } else {
7207 AvailableSpace::MinContent
7208 };
7209
7210 let mut element = (renderer.render)(&mut ChunkRendererContext {
7211 context: cx,
7212 window,
7213 max_width: text_width,
7214 });
7215 let line_height = text_style.line_height_in_pixels(window.rem_size());
7216 let size = element.layout_as_root(
7217 size(available_width, AvailableSpace::Definite(line_height)),
7218 window,
7219 cx,
7220 );
7221
7222 width += size.width;
7223 len += highlighted_chunk.text.len();
7224 fragments.push(LineFragment::Element {
7225 id: renderer.id,
7226 element: Some(element),
7227 size,
7228 len: highlighted_chunk.text.len(),
7229 });
7230 }
7231 ChunkReplacement::Str(x) => {
7232 let text_style = if let Some(style) = highlighted_chunk.style {
7233 Cow::Owned(text_style.clone().highlight(style))
7234 } else {
7235 Cow::Borrowed(text_style)
7236 };
7237
7238 let run = TextRun {
7239 len: x.len(),
7240 font: text_style.font(),
7241 color: text_style.color,
7242 background_color: text_style.background_color,
7243 underline: text_style.underline,
7244 strikethrough: text_style.strikethrough,
7245 };
7246 let line_layout = window
7247 .text_system()
7248 .shape_line(x, font_size, &[run])
7249 .with_len(highlighted_chunk.text.len());
7250
7251 width += line_layout.width;
7252 len += highlighted_chunk.text.len();
7253 fragments.push(LineFragment::Text(line_layout))
7254 }
7255 }
7256 } else {
7257 for (ix, mut line_chunk) in highlighted_chunk.text.split('\n').enumerate() {
7258 if ix > 0 {
7259 let shaped_line = window.text_system().shape_line(
7260 line.clone().into(),
7261 font_size,
7262 &styles,
7263 );
7264 width += shaped_line.width;
7265 len += shaped_line.len;
7266 fragments.push(LineFragment::Text(shaped_line));
7267 layouts.push(Self {
7268 width: mem::take(&mut width),
7269 len: mem::take(&mut len),
7270 fragments: mem::take(&mut fragments),
7271 invisibles: std::mem::take(&mut invisibles),
7272 font_size,
7273 });
7274
7275 line.clear();
7276 styles.clear();
7277 row += 1;
7278 line_exceeded_max_len = false;
7279 non_whitespace_added = false;
7280 if row == max_line_count {
7281 return layouts;
7282 }
7283 }
7284
7285 if !line_chunk.is_empty() && !line_exceeded_max_len {
7286 let text_style = if let Some(style) = highlighted_chunk.style {
7287 Cow::Owned(text_style.clone().highlight(style))
7288 } else {
7289 Cow::Borrowed(text_style)
7290 };
7291
7292 if line.len() + line_chunk.len() > max_line_len {
7293 let mut chunk_len = max_line_len - line.len();
7294 while !line_chunk.is_char_boundary(chunk_len) {
7295 chunk_len -= 1;
7296 }
7297 line_chunk = &line_chunk[..chunk_len];
7298 line_exceeded_max_len = true;
7299 }
7300
7301 styles.push(TextRun {
7302 len: line_chunk.len(),
7303 font: text_style.font(),
7304 color: text_style.color,
7305 background_color: text_style.background_color,
7306 underline: text_style.underline,
7307 strikethrough: text_style.strikethrough,
7308 });
7309
7310 if editor_mode.is_full() && !highlighted_chunk.is_inlay {
7311 // Line wrap pads its contents with fake whitespaces,
7312 // avoid printing them
7313 let is_soft_wrapped = is_row_soft_wrapped(row);
7314 if highlighted_chunk.is_tab {
7315 if non_whitespace_added || !is_soft_wrapped {
7316 invisibles.push(Invisible::Tab {
7317 line_start_offset: line.len(),
7318 line_end_offset: line.len() + line_chunk.len(),
7319 });
7320 }
7321 } else {
7322 invisibles.extend(line_chunk.char_indices().filter_map(
7323 |(index, c)| {
7324 let is_whitespace = c.is_whitespace();
7325 non_whitespace_added |= !is_whitespace;
7326 if is_whitespace
7327 && (non_whitespace_added || !is_soft_wrapped)
7328 {
7329 Some(Invisible::Whitespace {
7330 line_offset: line.len() + index,
7331 })
7332 } else {
7333 None
7334 }
7335 },
7336 ))
7337 }
7338 }
7339
7340 line.push_str(line_chunk);
7341 }
7342 }
7343 }
7344 }
7345
7346 layouts
7347 }
7348
7349 fn prepaint(
7350 &mut self,
7351 line_height: Pixels,
7352 scroll_pixel_position: gpui::Point<Pixels>,
7353 row: DisplayRow,
7354 content_origin: gpui::Point<Pixels>,
7355 line_elements: &mut SmallVec<[AnyElement; 1]>,
7356 window: &mut Window,
7357 cx: &mut App,
7358 ) {
7359 let line_y = line_height * (row.as_f32() - scroll_pixel_position.y / line_height);
7360 let mut fragment_origin = content_origin + gpui::point(-scroll_pixel_position.x, line_y);
7361 for fragment in &mut self.fragments {
7362 match fragment {
7363 LineFragment::Text(line) => {
7364 fragment_origin.x += line.width;
7365 }
7366 LineFragment::Element { element, size, .. } => {
7367 let mut element = element
7368 .take()
7369 .expect("you can't prepaint LineWithInvisibles twice");
7370
7371 // Center the element vertically within the line.
7372 let mut element_origin = fragment_origin;
7373 element_origin.y += (line_height - size.height) / 2.;
7374 element.prepaint_at(element_origin, window, cx);
7375 line_elements.push(element);
7376
7377 fragment_origin.x += size.width;
7378 }
7379 }
7380 }
7381 }
7382
7383 fn draw(
7384 &self,
7385 layout: &EditorLayout,
7386 row: DisplayRow,
7387 content_origin: gpui::Point<Pixels>,
7388 whitespace_setting: ShowWhitespaceSetting,
7389 selection_ranges: &[Range<DisplayPoint>],
7390 window: &mut Window,
7391 cx: &mut App,
7392 ) {
7393 let line_height = layout.position_map.line_height;
7394 let line_y = line_height
7395 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
7396
7397 let mut fragment_origin =
7398 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
7399
7400 for fragment in &self.fragments {
7401 match fragment {
7402 LineFragment::Text(line) => {
7403 line.paint(fragment_origin, line_height, window, cx)
7404 .log_err();
7405 fragment_origin.x += line.width;
7406 }
7407 LineFragment::Element { size, .. } => {
7408 fragment_origin.x += size.width;
7409 }
7410 }
7411 }
7412
7413 self.draw_invisibles(
7414 selection_ranges,
7415 layout,
7416 content_origin,
7417 line_y,
7418 row,
7419 line_height,
7420 whitespace_setting,
7421 window,
7422 cx,
7423 );
7424 }
7425
7426 fn draw_background(
7427 &self,
7428 layout: &EditorLayout,
7429 row: DisplayRow,
7430 content_origin: gpui::Point<Pixels>,
7431 window: &mut Window,
7432 cx: &mut App,
7433 ) {
7434 let line_height = layout.position_map.line_height;
7435 let line_y = line_height
7436 * (row.as_f32() - layout.position_map.scroll_pixel_position.y / line_height);
7437
7438 let mut fragment_origin =
7439 content_origin + gpui::point(-layout.position_map.scroll_pixel_position.x, line_y);
7440
7441 for fragment in &self.fragments {
7442 match fragment {
7443 LineFragment::Text(line) => {
7444 line.paint_background(fragment_origin, line_height, window, cx)
7445 .log_err();
7446 fragment_origin.x += line.width;
7447 }
7448 LineFragment::Element { size, .. } => {
7449 fragment_origin.x += size.width;
7450 }
7451 }
7452 }
7453 }
7454
7455 fn draw_invisibles(
7456 &self,
7457 selection_ranges: &[Range<DisplayPoint>],
7458 layout: &EditorLayout,
7459 content_origin: gpui::Point<Pixels>,
7460 line_y: Pixels,
7461 row: DisplayRow,
7462 line_height: Pixels,
7463 whitespace_setting: ShowWhitespaceSetting,
7464 window: &mut Window,
7465 cx: &mut App,
7466 ) {
7467 let extract_whitespace_info = |invisible: &Invisible| {
7468 let (token_offset, token_end_offset, invisible_symbol) = match invisible {
7469 Invisible::Tab {
7470 line_start_offset,
7471 line_end_offset,
7472 } => (*line_start_offset, *line_end_offset, &layout.tab_invisible),
7473 Invisible::Whitespace { line_offset } => {
7474 (*line_offset, line_offset + 1, &layout.space_invisible)
7475 }
7476 };
7477
7478 let x_offset = self.x_for_index(token_offset);
7479 let invisible_offset =
7480 (layout.position_map.em_width - invisible_symbol.width).max(Pixels::ZERO) / 2.0;
7481 let origin = content_origin
7482 + gpui::point(
7483 x_offset + invisible_offset - layout.position_map.scroll_pixel_position.x,
7484 line_y,
7485 );
7486
7487 (
7488 [token_offset, token_end_offset],
7489 Box::new(move |window: &mut Window, cx: &mut App| {
7490 invisible_symbol
7491 .paint(origin, line_height, window, cx)
7492 .log_err();
7493 }),
7494 )
7495 };
7496
7497 let invisible_iter = self.invisibles.iter().map(extract_whitespace_info);
7498 match whitespace_setting {
7499 ShowWhitespaceSetting::None => (),
7500 ShowWhitespaceSetting::All => invisible_iter.for_each(|(_, paint)| paint(window, cx)),
7501 ShowWhitespaceSetting::Selection => invisible_iter.for_each(|([start, _], paint)| {
7502 let invisible_point = DisplayPoint::new(row, start as u32);
7503 if !selection_ranges
7504 .iter()
7505 .any(|region| region.start <= invisible_point && invisible_point < region.end)
7506 {
7507 return;
7508 }
7509
7510 paint(window, cx);
7511 }),
7512
7513 ShowWhitespaceSetting::Trailing => {
7514 let mut previous_start = self.len;
7515 for ([start, end], paint) in invisible_iter.rev() {
7516 if previous_start != end {
7517 break;
7518 }
7519 previous_start = start;
7520 paint(window, cx);
7521 }
7522 }
7523
7524 // For a whitespace to be on a boundary, any of the following conditions need to be met:
7525 // - It is a tab
7526 // - It is adjacent to an edge (start or end)
7527 // - It is adjacent to a whitespace (left or right)
7528 ShowWhitespaceSetting::Boundary => {
7529 // 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
7530 // the above cases.
7531 // Note: We zip in the original `invisibles` to check for tab equality
7532 let mut last_seen: Option<(bool, usize, Box<dyn Fn(&mut Window, &mut App)>)> = None;
7533 for (([start, end], paint), invisible) in
7534 invisible_iter.zip_eq(self.invisibles.iter())
7535 {
7536 let should_render = match (&last_seen, invisible) {
7537 (_, Invisible::Tab { .. }) => true,
7538 (Some((_, last_end, _)), _) => *last_end == start,
7539 _ => false,
7540 };
7541
7542 if should_render || start == 0 || end == self.len {
7543 paint(window, cx);
7544
7545 // Since we are scanning from the left, we will skip over the first available whitespace that is part
7546 // of a boundary between non-whitespace segments, so we correct by manually redrawing it if needed.
7547 if let Some((should_render_last, last_end, paint_last)) = last_seen {
7548 // Note that we need to make sure that the last one is actually adjacent
7549 if !should_render_last && last_end == start {
7550 paint_last(window, cx);
7551 }
7552 }
7553 }
7554
7555 // Manually render anything within a selection
7556 let invisible_point = DisplayPoint::new(row, start as u32);
7557 if selection_ranges.iter().any(|region| {
7558 region.start <= invisible_point && invisible_point < region.end
7559 }) {
7560 paint(window, cx);
7561 }
7562
7563 last_seen = Some((should_render, end, paint));
7564 }
7565 }
7566 }
7567 }
7568
7569 pub fn x_for_index(&self, index: usize) -> Pixels {
7570 let mut fragment_start_x = Pixels::ZERO;
7571 let mut fragment_start_index = 0;
7572
7573 for fragment in &self.fragments {
7574 match fragment {
7575 LineFragment::Text(shaped_line) => {
7576 let fragment_end_index = fragment_start_index + shaped_line.len;
7577 if index < fragment_end_index {
7578 return fragment_start_x
7579 + shaped_line.x_for_index(index - fragment_start_index);
7580 }
7581 fragment_start_x += shaped_line.width;
7582 fragment_start_index = fragment_end_index;
7583 }
7584 LineFragment::Element { len, size, .. } => {
7585 let fragment_end_index = fragment_start_index + len;
7586 if index < fragment_end_index {
7587 return fragment_start_x;
7588 }
7589 fragment_start_x += size.width;
7590 fragment_start_index = fragment_end_index;
7591 }
7592 }
7593 }
7594
7595 fragment_start_x
7596 }
7597
7598 pub fn index_for_x(&self, x: Pixels) -> Option<usize> {
7599 let mut fragment_start_x = Pixels::ZERO;
7600 let mut fragment_start_index = 0;
7601
7602 for fragment in &self.fragments {
7603 match fragment {
7604 LineFragment::Text(shaped_line) => {
7605 let fragment_end_x = fragment_start_x + shaped_line.width;
7606 if x < fragment_end_x {
7607 return Some(
7608 fragment_start_index + shaped_line.index_for_x(x - fragment_start_x)?,
7609 );
7610 }
7611 fragment_start_x = fragment_end_x;
7612 fragment_start_index += shaped_line.len;
7613 }
7614 LineFragment::Element { len, size, .. } => {
7615 let fragment_end_x = fragment_start_x + size.width;
7616 if x < fragment_end_x {
7617 return Some(fragment_start_index);
7618 }
7619 fragment_start_index += len;
7620 fragment_start_x = fragment_end_x;
7621 }
7622 }
7623 }
7624
7625 None
7626 }
7627
7628 pub fn font_id_for_index(&self, index: usize) -> Option<FontId> {
7629 let mut fragment_start_index = 0;
7630
7631 for fragment in &self.fragments {
7632 match fragment {
7633 LineFragment::Text(shaped_line) => {
7634 let fragment_end_index = fragment_start_index + shaped_line.len;
7635 if index < fragment_end_index {
7636 return shaped_line.font_id_for_index(index - fragment_start_index);
7637 }
7638 fragment_start_index = fragment_end_index;
7639 }
7640 LineFragment::Element { len, .. } => {
7641 let fragment_end_index = fragment_start_index + len;
7642 if index < fragment_end_index {
7643 return None;
7644 }
7645 fragment_start_index = fragment_end_index;
7646 }
7647 }
7648 }
7649
7650 None
7651 }
7652}
7653
7654#[derive(Debug, Clone, Copy, PartialEq, Eq)]
7655enum Invisible {
7656 /// A tab character
7657 ///
7658 /// A tab character is internally represented by spaces (configured by the user's tab width)
7659 /// aligned to the nearest column, so it's necessary to store the start and end offset for
7660 /// adjacency checks.
7661 Tab {
7662 line_start_offset: usize,
7663 line_end_offset: usize,
7664 },
7665 Whitespace {
7666 line_offset: usize,
7667 },
7668}
7669
7670impl EditorElement {
7671 /// Returns the rem size to use when rendering the [`EditorElement`].
7672 ///
7673 /// This allows UI elements to scale based on the `buffer_font_size`.
7674 fn rem_size(&self, cx: &mut App) -> Option<Pixels> {
7675 match self.editor.read(cx).mode {
7676 EditorMode::Full {
7677 scale_ui_elements_with_buffer_font_size: true,
7678 ..
7679 }
7680 | EditorMode::Minimap { .. } => {
7681 let buffer_font_size = self.style.text.font_size;
7682 match buffer_font_size {
7683 AbsoluteLength::Pixels(pixels) => {
7684 let rem_size_scale = {
7685 // Our default UI font size is 14px on a 16px base scale.
7686 // This means the default UI font size is 0.875rems.
7687 let default_font_size_scale = 14. / ui::BASE_REM_SIZE_IN_PX;
7688
7689 // We then determine the delta between a single rem and the default font
7690 // size scale.
7691 let default_font_size_delta = 1. - default_font_size_scale;
7692
7693 // Finally, we add this delta to 1rem to get the scale factor that
7694 // should be used to scale up the UI.
7695 1. + default_font_size_delta
7696 };
7697
7698 Some(pixels * rem_size_scale)
7699 }
7700 AbsoluteLength::Rems(rems) => {
7701 Some(rems.to_pixels(ui::BASE_REM_SIZE_IN_PX.into()))
7702 }
7703 }
7704 }
7705 // We currently use single-line and auto-height editors in UI contexts,
7706 // so we don't want to scale everything with the buffer font size, as it
7707 // ends up looking off.
7708 _ => None,
7709 }
7710 }
7711
7712 fn editor_with_selections(&self, cx: &App) -> Option<Entity<Editor>> {
7713 if let EditorMode::Minimap { parent } = self.editor.read(cx).mode() {
7714 parent.upgrade()
7715 } else {
7716 Some(self.editor.clone())
7717 }
7718 }
7719}
7720
7721impl Element for EditorElement {
7722 type RequestLayoutState = ();
7723 type PrepaintState = EditorLayout;
7724
7725 fn id(&self) -> Option<ElementId> {
7726 None
7727 }
7728
7729 fn source_location(&self) -> Option<&'static core::panic::Location<'static>> {
7730 None
7731 }
7732
7733 fn request_layout(
7734 &mut self,
7735 _: Option<&GlobalElementId>,
7736 _inspector_id: Option<&gpui::InspectorElementId>,
7737 window: &mut Window,
7738 cx: &mut App,
7739 ) -> (gpui::LayoutId, ()) {
7740 let rem_size = self.rem_size(cx);
7741 window.with_rem_size(rem_size, |window| {
7742 self.editor.update(cx, |editor, cx| {
7743 editor.set_style(self.style.clone(), window, cx);
7744
7745 let layout_id = match editor.mode {
7746 EditorMode::SingleLine { auto_width } => {
7747 let rem_size = window.rem_size();
7748
7749 let height = self.style.text.line_height_in_pixels(rem_size);
7750 if auto_width {
7751 let editor_handle = cx.entity().clone();
7752 let style = self.style.clone();
7753 window.request_measured_layout(
7754 Style::default(),
7755 move |_, _, window, cx| {
7756 let editor_snapshot = editor_handle
7757 .update(cx, |editor, cx| editor.snapshot(window, cx));
7758 let line = Self::layout_lines(
7759 DisplayRow(0)..DisplayRow(1),
7760 &editor_snapshot,
7761 &style,
7762 px(f32::MAX),
7763 |_| false, // Single lines never soft wrap
7764 window,
7765 cx,
7766 )
7767 .pop()
7768 .unwrap();
7769
7770 let font_id =
7771 window.text_system().resolve_font(&style.text.font());
7772 let font_size =
7773 style.text.font_size.to_pixels(window.rem_size());
7774 let em_width =
7775 window.text_system().em_width(font_id, font_size).unwrap();
7776
7777 size(line.width + em_width, height)
7778 },
7779 )
7780 } else {
7781 let mut style = Style::default();
7782 style.size.height = height.into();
7783 style.size.width = relative(1.).into();
7784 window.request_layout(style, None, cx)
7785 }
7786 }
7787 EditorMode::AutoHeight {
7788 min_lines,
7789 max_lines,
7790 } => {
7791 let editor_handle = cx.entity().clone();
7792 let max_line_number_width =
7793 self.max_line_number_width(&editor.snapshot(window, cx), window, cx);
7794 window.request_measured_layout(
7795 Style::default(),
7796 move |known_dimensions, available_space, window, cx| {
7797 editor_handle
7798 .update(cx, |editor, cx| {
7799 compute_auto_height_layout(
7800 editor,
7801 min_lines,
7802 max_lines,
7803 max_line_number_width,
7804 known_dimensions,
7805 available_space.width,
7806 window,
7807 cx,
7808 )
7809 })
7810 .unwrap_or_default()
7811 },
7812 )
7813 }
7814 EditorMode::Minimap { .. } => {
7815 let mut style = Style::default();
7816 style.size.width = relative(1.).into();
7817 style.size.height = relative(1.).into();
7818 window.request_layout(style, None, cx)
7819 }
7820 EditorMode::Full {
7821 sized_by_content, ..
7822 } => {
7823 let mut style = Style::default();
7824 style.size.width = relative(1.).into();
7825 if sized_by_content {
7826 let snapshot = editor.snapshot(window, cx);
7827 let line_height =
7828 self.style.text.line_height_in_pixels(window.rem_size());
7829 let scroll_height =
7830 (snapshot.max_point().row().next_row().0 as f32) * line_height;
7831 style.size.height = scroll_height.into();
7832 } else {
7833 style.size.height = relative(1.).into();
7834 }
7835 window.request_layout(style, None, cx)
7836 }
7837 };
7838
7839 (layout_id, ())
7840 })
7841 })
7842 }
7843
7844 fn prepaint(
7845 &mut self,
7846 _: Option<&GlobalElementId>,
7847 _inspector_id: Option<&gpui::InspectorElementId>,
7848 bounds: Bounds<Pixels>,
7849 _: &mut Self::RequestLayoutState,
7850 window: &mut Window,
7851 cx: &mut App,
7852 ) -> Self::PrepaintState {
7853 let text_style = TextStyleRefinement {
7854 font_size: Some(self.style.text.font_size),
7855 line_height: Some(self.style.text.line_height),
7856 ..Default::default()
7857 };
7858 let focus_handle = self.editor.focus_handle(cx);
7859 window.set_view_id(self.editor.entity_id());
7860 window.set_focus_handle(&focus_handle, cx);
7861
7862 let rem_size = self.rem_size(cx);
7863 window.with_rem_size(rem_size, |window| {
7864 window.with_text_style(Some(text_style), |window| {
7865 window.with_content_mask(Some(ContentMask { bounds }), |window| {
7866 let (mut snapshot, is_read_only) = self.editor.update(cx, |editor, cx| {
7867 (editor.snapshot(window, cx), editor.read_only(cx))
7868 });
7869 let style = self.style.clone();
7870
7871 let rem_size = window.rem_size();
7872 let font_id = window.text_system().resolve_font(&style.text.font());
7873 let font_size = style.text.font_size.to_pixels(rem_size);
7874 let line_height = style.text.line_height_in_pixels(rem_size);
7875 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
7876 let em_advance = window.text_system().em_advance(font_id, font_size).unwrap();
7877 let glyph_grid_cell = size(em_advance, line_height);
7878
7879 let gutter_dimensions = snapshot
7880 .gutter_dimensions(
7881 font_id,
7882 font_size,
7883 self.max_line_number_width(&snapshot, window, cx),
7884 cx,
7885 )
7886 .or_else(|| {
7887 self.editor.read(cx).offset_content.then(|| {
7888 GutterDimensions::default_with_margin(font_id, font_size, cx)
7889 })
7890 })
7891 .unwrap_or_default();
7892 let text_width = bounds.size.width - gutter_dimensions.width;
7893
7894 let settings = EditorSettings::get_global(cx);
7895 let scrollbars_shown = settings.scrollbar.show != ShowScrollbar::Never;
7896 let vertical_scrollbar_width = (scrollbars_shown
7897 && settings.scrollbar.axes.vertical
7898 && self.editor.read(cx).show_scrollbars.vertical)
7899 .then_some(style.scrollbar_width)
7900 .unwrap_or_default();
7901 let minimap_width = self
7902 .get_minimap_width(
7903 &settings.minimap,
7904 scrollbars_shown,
7905 text_width,
7906 em_width,
7907 font_size,
7908 rem_size,
7909 cx,
7910 )
7911 .unwrap_or_default();
7912
7913 let right_margin = minimap_width + vertical_scrollbar_width;
7914
7915 let editor_width =
7916 text_width - gutter_dimensions.margin - 2 * em_width - right_margin;
7917 let editor_margins = EditorMargins {
7918 gutter: gutter_dimensions,
7919 right: right_margin,
7920 };
7921
7922 // Offset the content_bounds from the text_bounds by the gutter margin (which
7923 // is roughly half a character wide) to make hit testing work more like how we want.
7924 let content_offset = point(editor_margins.gutter.margin, Pixels::ZERO);
7925
7926 let editor_content_width = editor_width - content_offset.x;
7927
7928 snapshot = self.editor.update(cx, |editor, cx| {
7929 editor.last_bounds = Some(bounds);
7930 editor.gutter_dimensions = gutter_dimensions;
7931 editor.set_visible_line_count(bounds.size.height / line_height, window, cx);
7932
7933 if matches!(
7934 editor.mode,
7935 EditorMode::AutoHeight { .. } | EditorMode::Minimap { .. }
7936 ) {
7937 snapshot
7938 } else {
7939 let wrap_width_for = |column: u32| (column as f32 * em_advance).ceil();
7940 let wrap_width = match editor.soft_wrap_mode(cx) {
7941 SoftWrap::GitDiff => None,
7942 SoftWrap::None => Some(wrap_width_for(MAX_LINE_LEN as u32 / 2)),
7943 SoftWrap::EditorWidth => Some(editor_content_width),
7944 SoftWrap::Column(column) => Some(wrap_width_for(column)),
7945 SoftWrap::Bounded(column) => {
7946 Some(editor_content_width.min(wrap_width_for(column)))
7947 }
7948 };
7949
7950 if editor.set_wrap_width(wrap_width, cx) {
7951 editor.snapshot(window, cx)
7952 } else {
7953 snapshot
7954 }
7955 }
7956 });
7957
7958 let wrap_guides = self
7959 .editor
7960 .read(cx)
7961 .wrap_guides(cx)
7962 .iter()
7963 .map(|(guide, active)| (self.column_pixels(*guide, window, cx), *active))
7964 .collect::<SmallVec<[_; 2]>>();
7965
7966 let hitbox = window.insert_hitbox(bounds, HitboxBehavior::Normal);
7967 let gutter_hitbox = window.insert_hitbox(
7968 gutter_bounds(bounds, gutter_dimensions),
7969 HitboxBehavior::Normal,
7970 );
7971 let text_hitbox = window.insert_hitbox(
7972 Bounds {
7973 origin: gutter_hitbox.top_right(),
7974 size: size(text_width, bounds.size.height),
7975 },
7976 HitboxBehavior::Normal,
7977 );
7978
7979 let content_origin = text_hitbox.origin + content_offset;
7980
7981 let editor_text_bounds =
7982 Bounds::from_corners(content_origin, bounds.bottom_right());
7983
7984 let height_in_lines = editor_text_bounds.size.height / line_height;
7985
7986 let max_row = snapshot.max_point().row().as_f32();
7987
7988 // The max scroll position for the top of the window
7989 let max_scroll_top = if matches!(
7990 snapshot.mode,
7991 EditorMode::SingleLine { .. }
7992 | EditorMode::AutoHeight { .. }
7993 | EditorMode::Full {
7994 sized_by_content: true,
7995 ..
7996 }
7997 ) {
7998 (max_row - height_in_lines + 1.).max(0.)
7999 } else {
8000 let settings = EditorSettings::get_global(cx);
8001 match settings.scroll_beyond_last_line {
8002 ScrollBeyondLastLine::OnePage => max_row,
8003 ScrollBeyondLastLine::Off => (max_row - height_in_lines + 1.).max(0.),
8004 ScrollBeyondLastLine::VerticalScrollMargin => {
8005 (max_row - height_in_lines + 1. + settings.vertical_scroll_margin)
8006 .max(0.)
8007 }
8008 }
8009 };
8010
8011 // TODO: Autoscrolling for both axes
8012 let mut autoscroll_request = None;
8013 let mut autoscroll_containing_element = false;
8014 let mut autoscroll_horizontally = false;
8015 self.editor.update(cx, |editor, cx| {
8016 autoscroll_request = editor.autoscroll_request();
8017 autoscroll_containing_element =
8018 autoscroll_request.is_some() || editor.has_pending_selection();
8019 // TODO: Is this horizontal or vertical?!
8020 autoscroll_horizontally = editor.autoscroll_vertically(
8021 bounds,
8022 line_height,
8023 max_scroll_top,
8024 window,
8025 cx,
8026 );
8027 snapshot = editor.snapshot(window, cx);
8028 });
8029
8030 let mut scroll_position = snapshot.scroll_position();
8031 // The scroll position is a fractional point, the whole number of which represents
8032 // the top of the window in terms of display rows.
8033 let start_row = DisplayRow(scroll_position.y as u32);
8034 let max_row = snapshot.max_point().row();
8035 let end_row = cmp::min(
8036 (scroll_position.y + height_in_lines).ceil() as u32,
8037 max_row.next_row().0,
8038 );
8039 let end_row = DisplayRow(end_row);
8040
8041 let row_infos = snapshot
8042 .row_infos(start_row)
8043 .take((start_row..end_row).len())
8044 .collect::<Vec<RowInfo>>();
8045 let is_row_soft_wrapped = |row: usize| {
8046 row_infos
8047 .get(row)
8048 .map_or(true, |info| info.buffer_row.is_none())
8049 };
8050
8051 let start_anchor = if start_row == Default::default() {
8052 Anchor::min()
8053 } else {
8054 snapshot.buffer_snapshot.anchor_before(
8055 DisplayPoint::new(start_row, 0).to_offset(&snapshot, Bias::Left),
8056 )
8057 };
8058 let end_anchor = if end_row > max_row {
8059 Anchor::max()
8060 } else {
8061 snapshot.buffer_snapshot.anchor_before(
8062 DisplayPoint::new(end_row, 0).to_offset(&snapshot, Bias::Right),
8063 )
8064 };
8065
8066 let mut highlighted_rows = self
8067 .editor
8068 .update(cx, |editor, cx| editor.highlighted_display_rows(window, cx));
8069
8070 let is_light = cx.theme().appearance().is_light();
8071
8072 for (ix, row_info) in row_infos.iter().enumerate() {
8073 let Some(diff_status) = row_info.diff_status else {
8074 continue;
8075 };
8076
8077 let background_color = match diff_status.kind {
8078 DiffHunkStatusKind::Added => cx.theme().colors().version_control_added,
8079 DiffHunkStatusKind::Deleted => {
8080 cx.theme().colors().version_control_deleted
8081 }
8082 DiffHunkStatusKind::Modified => {
8083 debug_panic!("modified diff status for row info");
8084 continue;
8085 }
8086 };
8087
8088 let hunk_opacity = if is_light { 0.16 } else { 0.12 };
8089
8090 let hollow_highlight = LineHighlight {
8091 background: (background_color.opacity(if is_light {
8092 0.08
8093 } else {
8094 0.06
8095 }))
8096 .into(),
8097 border: Some(if is_light {
8098 background_color.opacity(0.48)
8099 } else {
8100 background_color.opacity(0.36)
8101 }),
8102 include_gutter: true,
8103 type_id: None,
8104 };
8105
8106 let filled_highlight = LineHighlight {
8107 background: solid_background(background_color.opacity(hunk_opacity)),
8108 border: None,
8109 include_gutter: true,
8110 type_id: None,
8111 };
8112
8113 let background = if Self::diff_hunk_hollow(diff_status, cx) {
8114 hollow_highlight
8115 } else {
8116 filled_highlight
8117 };
8118
8119 highlighted_rows
8120 .entry(start_row + DisplayRow(ix as u32))
8121 .or_insert(background);
8122 }
8123
8124 let highlighted_ranges = self
8125 .editor_with_selections(cx)
8126 .map(|editor| {
8127 editor.read(cx).background_highlights_in_range(
8128 start_anchor..end_anchor,
8129 &snapshot.display_snapshot,
8130 cx.theme(),
8131 )
8132 })
8133 .unwrap_or_default();
8134 let highlighted_gutter_ranges =
8135 self.editor.read(cx).gutter_highlights_in_range(
8136 start_anchor..end_anchor,
8137 &snapshot.display_snapshot,
8138 cx,
8139 );
8140
8141 let document_colors = self
8142 .editor
8143 .read(cx)
8144 .colors
8145 .as_ref()
8146 .map(|colors| colors.editor_display_highlights(&snapshot));
8147 let redacted_ranges = self.editor.read(cx).redacted_ranges(
8148 start_anchor..end_anchor,
8149 &snapshot.display_snapshot,
8150 cx,
8151 );
8152
8153 let (local_selections, selected_buffer_ids): (
8154 Vec<Selection<Point>>,
8155 Vec<BufferId>,
8156 ) = self
8157 .editor_with_selections(cx)
8158 .map(|editor| {
8159 editor.update(cx, |editor, cx| {
8160 let all_selections = editor.selections.all::<Point>(cx);
8161 let selected_buffer_ids = if editor.is_singleton(cx) {
8162 Vec::new()
8163 } else {
8164 let mut selected_buffer_ids =
8165 Vec::with_capacity(all_selections.len());
8166
8167 for selection in all_selections {
8168 for buffer_id in snapshot
8169 .buffer_snapshot
8170 .buffer_ids_for_range(selection.range())
8171 {
8172 if selected_buffer_ids.last() != Some(&buffer_id) {
8173 selected_buffer_ids.push(buffer_id);
8174 }
8175 }
8176 }
8177
8178 selected_buffer_ids
8179 };
8180
8181 let mut selections = editor
8182 .selections
8183 .disjoint_in_range(start_anchor..end_anchor, cx);
8184 selections.extend(editor.selections.pending(cx));
8185
8186 (selections, selected_buffer_ids)
8187 })
8188 })
8189 .unwrap_or_default();
8190
8191 let (selections, mut active_rows, newest_selection_head) = self
8192 .layout_selections(
8193 start_anchor,
8194 end_anchor,
8195 &local_selections,
8196 &snapshot,
8197 start_row,
8198 end_row,
8199 window,
8200 cx,
8201 );
8202 let mut breakpoint_rows = self.editor.update(cx, |editor, cx| {
8203 editor.active_breakpoints(start_row..end_row, window, cx)
8204 });
8205 for (display_row, (_, bp, state)) in &breakpoint_rows {
8206 if bp.is_enabled() && state.is_none_or(|s| s.verified) {
8207 active_rows.entry(*display_row).or_default().breakpoint = true;
8208 }
8209 }
8210
8211 let line_numbers = self.layout_line_numbers(
8212 Some(&gutter_hitbox),
8213 gutter_dimensions,
8214 line_height,
8215 scroll_position,
8216 start_row..end_row,
8217 &row_infos,
8218 &active_rows,
8219 newest_selection_head,
8220 &snapshot,
8221 window,
8222 cx,
8223 );
8224
8225 // We add the gutter breakpoint indicator to breakpoint_rows after painting
8226 // line numbers so we don't paint a line number debug accent color if a user
8227 // has their mouse over that line when a breakpoint isn't there
8228 self.editor.update(cx, |editor, _| {
8229 if let Some(phantom_breakpoint) = &mut editor
8230 .gutter_breakpoint_indicator
8231 .0
8232 .filter(|phantom_breakpoint| phantom_breakpoint.is_active)
8233 {
8234 // Is there a non-phantom breakpoint on this line?
8235 phantom_breakpoint.collides_with_existing_breakpoint = true;
8236 breakpoint_rows
8237 .entry(phantom_breakpoint.display_row)
8238 .or_insert_with(|| {
8239 let position = snapshot.display_point_to_anchor(
8240 DisplayPoint::new(phantom_breakpoint.display_row, 0),
8241 Bias::Right,
8242 );
8243 let breakpoint = Breakpoint::new_standard();
8244 phantom_breakpoint.collides_with_existing_breakpoint = false;
8245 (position, breakpoint, None)
8246 });
8247 }
8248 });
8249
8250 let mut expand_toggles =
8251 window.with_element_namespace("expand_toggles", |window| {
8252 self.layout_expand_toggles(
8253 &gutter_hitbox,
8254 gutter_dimensions,
8255 em_width,
8256 line_height,
8257 scroll_position,
8258 &row_infos,
8259 window,
8260 cx,
8261 )
8262 });
8263
8264 let mut crease_toggles =
8265 window.with_element_namespace("crease_toggles", |window| {
8266 self.layout_crease_toggles(
8267 start_row..end_row,
8268 &row_infos,
8269 &active_rows,
8270 &snapshot,
8271 window,
8272 cx,
8273 )
8274 });
8275 let crease_trailers =
8276 window.with_element_namespace("crease_trailers", |window| {
8277 self.layout_crease_trailers(
8278 row_infos.iter().copied(),
8279 &snapshot,
8280 window,
8281 cx,
8282 )
8283 });
8284
8285 let display_hunks = self.layout_gutter_diff_hunks(
8286 line_height,
8287 &gutter_hitbox,
8288 start_row..end_row,
8289 &snapshot,
8290 window,
8291 cx,
8292 );
8293
8294 let mut line_layouts = Self::layout_lines(
8295 start_row..end_row,
8296 &snapshot,
8297 &self.style,
8298 editor_width,
8299 is_row_soft_wrapped,
8300 window,
8301 cx,
8302 );
8303 let new_renrerer_widths = line_layouts
8304 .iter()
8305 .flat_map(|layout| &layout.fragments)
8306 .filter_map(|fragment| {
8307 if let LineFragment::Element { id, size, .. } = fragment {
8308 Some((*id, size.width))
8309 } else {
8310 None
8311 }
8312 });
8313 if self.editor.update(cx, |editor, cx| {
8314 editor.update_renderer_widths(new_renrerer_widths, cx)
8315 }) {
8316 // If the fold widths have changed, we need to prepaint
8317 // the element again to account for any changes in
8318 // wrapping.
8319 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
8320 }
8321
8322 let longest_line_blame_width = self
8323 .editor
8324 .update(cx, |editor, cx| {
8325 if !editor.show_git_blame_inline {
8326 return None;
8327 }
8328 let blame = editor.blame.as_ref()?;
8329 let blame_entry = blame
8330 .update(cx, |blame, cx| {
8331 let row_infos =
8332 snapshot.row_infos(snapshot.longest_row()).next()?;
8333 blame.blame_for_rows(&[row_infos], cx).next()
8334 })
8335 .flatten()?;
8336 let mut element = render_inline_blame_entry(blame_entry, &style, cx)?;
8337 let inline_blame_padding = INLINE_BLAME_PADDING_EM_WIDTHS * em_advance;
8338 Some(
8339 element
8340 .layout_as_root(AvailableSpace::min_size(), window, cx)
8341 .width
8342 + inline_blame_padding,
8343 )
8344 })
8345 .unwrap_or(Pixels::ZERO);
8346
8347 let longest_line_width = layout_line(
8348 snapshot.longest_row(),
8349 &snapshot,
8350 &style,
8351 editor_width,
8352 is_row_soft_wrapped,
8353 window,
8354 cx,
8355 )
8356 .width;
8357
8358 let scrollbar_layout_information = ScrollbarLayoutInformation::new(
8359 text_hitbox.bounds,
8360 glyph_grid_cell,
8361 size(longest_line_width, max_row.as_f32() * line_height),
8362 longest_line_blame_width,
8363 editor_width,
8364 EditorSettings::get_global(cx),
8365 );
8366
8367 let mut scroll_width = scrollbar_layout_information.scroll_range.width;
8368
8369 let sticky_header_excerpt = if snapshot.buffer_snapshot.show_headers() {
8370 snapshot.sticky_header_excerpt(scroll_position.y)
8371 } else {
8372 None
8373 };
8374 let sticky_header_excerpt_id =
8375 sticky_header_excerpt.as_ref().map(|top| top.excerpt.id);
8376
8377 let blocks = window.with_element_namespace("blocks", |window| {
8378 self.render_blocks(
8379 start_row..end_row,
8380 &snapshot,
8381 &hitbox,
8382 &text_hitbox,
8383 editor_width,
8384 &mut scroll_width,
8385 &editor_margins,
8386 em_width,
8387 gutter_dimensions.full_width(),
8388 line_height,
8389 &mut line_layouts,
8390 &local_selections,
8391 &selected_buffer_ids,
8392 is_row_soft_wrapped,
8393 sticky_header_excerpt_id,
8394 window,
8395 cx,
8396 )
8397 });
8398 let (mut blocks, row_block_types) = match blocks {
8399 Ok(blocks) => blocks,
8400 Err(resized_blocks) => {
8401 self.editor.update(cx, |editor, cx| {
8402 editor.resize_blocks(resized_blocks, autoscroll_request, cx)
8403 });
8404 return self.prepaint(None, _inspector_id, bounds, &mut (), window, cx);
8405 }
8406 };
8407
8408 let sticky_buffer_header = sticky_header_excerpt.map(|sticky_header_excerpt| {
8409 window.with_element_namespace("blocks", |window| {
8410 self.layout_sticky_buffer_header(
8411 sticky_header_excerpt,
8412 scroll_position.y,
8413 line_height,
8414 right_margin,
8415 &snapshot,
8416 &hitbox,
8417 &selected_buffer_ids,
8418 &blocks,
8419 window,
8420 cx,
8421 )
8422 })
8423 });
8424
8425 let start_buffer_row =
8426 MultiBufferRow(start_anchor.to_point(&snapshot.buffer_snapshot).row);
8427 let end_buffer_row =
8428 MultiBufferRow(end_anchor.to_point(&snapshot.buffer_snapshot).row);
8429
8430 let scroll_max = point(
8431 ((scroll_width - editor_content_width) / em_advance).max(0.0),
8432 max_scroll_top,
8433 );
8434
8435 self.editor.update(cx, |editor, cx| {
8436 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
8437
8438 let autoscrolled = if autoscroll_horizontally {
8439 editor.autoscroll_horizontally(
8440 start_row,
8441 editor_content_width,
8442 scroll_width,
8443 em_advance,
8444 &line_layouts,
8445 cx,
8446 )
8447 } else {
8448 false
8449 };
8450
8451 if clamped || autoscrolled {
8452 snapshot = editor.snapshot(window, cx);
8453 scroll_position = snapshot.scroll_position();
8454 }
8455 });
8456
8457 let scroll_pixel_position = point(
8458 scroll_position.x * em_advance,
8459 scroll_position.y * line_height,
8460 );
8461 let indent_guides = self.layout_indent_guides(
8462 content_origin,
8463 text_hitbox.origin,
8464 start_buffer_row..end_buffer_row,
8465 scroll_pixel_position,
8466 line_height,
8467 &snapshot,
8468 window,
8469 cx,
8470 );
8471
8472 let crease_trailers =
8473 window.with_element_namespace("crease_trailers", |window| {
8474 self.prepaint_crease_trailers(
8475 crease_trailers,
8476 &line_layouts,
8477 line_height,
8478 content_origin,
8479 scroll_pixel_position,
8480 em_width,
8481 window,
8482 cx,
8483 )
8484 });
8485
8486 let (inline_completion_popover, inline_completion_popover_origin) = self
8487 .editor
8488 .update(cx, |editor, cx| {
8489 editor.render_edit_prediction_popover(
8490 &text_hitbox.bounds,
8491 content_origin,
8492 right_margin,
8493 &snapshot,
8494 start_row..end_row,
8495 scroll_position.y,
8496 scroll_position.y + height_in_lines,
8497 &line_layouts,
8498 line_height,
8499 scroll_pixel_position,
8500 newest_selection_head,
8501 editor_width,
8502 &style,
8503 window,
8504 cx,
8505 )
8506 })
8507 .unzip();
8508
8509 let mut inline_diagnostics = self.layout_inline_diagnostics(
8510 &line_layouts,
8511 &crease_trailers,
8512 &row_block_types,
8513 content_origin,
8514 scroll_pixel_position,
8515 inline_completion_popover_origin,
8516 start_row,
8517 end_row,
8518 line_height,
8519 em_width,
8520 &style,
8521 window,
8522 cx,
8523 );
8524
8525 let mut inline_blame_layout = None;
8526 let mut inline_code_actions = None;
8527 if let Some(newest_selection_head) = newest_selection_head {
8528 let display_row = newest_selection_head.row();
8529 if (start_row..end_row).contains(&display_row)
8530 && !row_block_types.contains_key(&display_row)
8531 {
8532 inline_code_actions = self.layout_inline_code_actions(
8533 newest_selection_head,
8534 content_origin,
8535 scroll_pixel_position,
8536 line_height,
8537 &snapshot,
8538 window,
8539 cx,
8540 );
8541
8542 let line_ix = display_row.minus(start_row) as usize;
8543 if let (Some(row_info), Some(line_layout), Some(crease_trailer)) = (
8544 row_infos.get(line_ix),
8545 line_layouts.get(line_ix),
8546 crease_trailers.get(line_ix),
8547 ) {
8548 let crease_trailer_layout = crease_trailer.as_ref();
8549 if let Some(layout) = self.layout_inline_blame(
8550 display_row,
8551 row_info,
8552 line_layout,
8553 crease_trailer_layout,
8554 em_width,
8555 content_origin,
8556 scroll_pixel_position,
8557 line_height,
8558 &text_hitbox,
8559 window,
8560 cx,
8561 ) {
8562 inline_blame_layout = Some(layout);
8563 // Blame overrides inline diagnostics
8564 inline_diagnostics.remove(&display_row);
8565 }
8566 } else {
8567 log::error!(
8568 "bug: line_ix {} is out of bounds - row_infos.len(): {}, line_layouts.len(): {}, crease_trailers.len(): {}",
8569 line_ix,
8570 row_infos.len(),
8571 line_layouts.len(),
8572 crease_trailers.len(),
8573 );
8574 }
8575 }
8576 }
8577
8578 let blamed_display_rows = self.layout_blame_entries(
8579 &row_infos,
8580 em_width,
8581 scroll_position,
8582 line_height,
8583 &gutter_hitbox,
8584 gutter_dimensions.git_blame_entries_width,
8585 window,
8586 cx,
8587 );
8588
8589 self.editor.update(cx, |editor, cx| {
8590 let clamped = editor.scroll_manager.clamp_scroll_left(scroll_max.x);
8591
8592 let autoscrolled = if autoscroll_horizontally {
8593 editor.autoscroll_horizontally(
8594 start_row,
8595 editor_content_width,
8596 scroll_width,
8597 em_width,
8598 &line_layouts,
8599 cx,
8600 )
8601 } else {
8602 false
8603 };
8604
8605 if clamped || autoscrolled {
8606 snapshot = editor.snapshot(window, cx);
8607 scroll_position = snapshot.scroll_position();
8608 }
8609 });
8610
8611 let line_elements = self.prepaint_lines(
8612 start_row,
8613 &mut line_layouts,
8614 line_height,
8615 scroll_pixel_position,
8616 content_origin,
8617 window,
8618 cx,
8619 );
8620
8621 window.with_element_namespace("blocks", |window| {
8622 self.layout_blocks(
8623 &mut blocks,
8624 &hitbox,
8625 line_height,
8626 scroll_pixel_position,
8627 window,
8628 cx,
8629 );
8630 });
8631
8632 let cursors = self.collect_cursors(&snapshot, cx);
8633 let visible_row_range = start_row..end_row;
8634 let non_visible_cursors = cursors
8635 .iter()
8636 .any(|c| !visible_row_range.contains(&c.0.row()));
8637
8638 let visible_cursors = self.layout_visible_cursors(
8639 &snapshot,
8640 &selections,
8641 &row_block_types,
8642 start_row..end_row,
8643 &line_layouts,
8644 &text_hitbox,
8645 content_origin,
8646 scroll_position,
8647 scroll_pixel_position,
8648 line_height,
8649 em_width,
8650 em_advance,
8651 autoscroll_containing_element,
8652 window,
8653 cx,
8654 );
8655
8656 let scrollbars_layout = self.layout_scrollbars(
8657 &snapshot,
8658 &scrollbar_layout_information,
8659 content_offset,
8660 scroll_position,
8661 non_visible_cursors,
8662 right_margin,
8663 editor_width,
8664 window,
8665 cx,
8666 );
8667
8668 let gutter_settings = EditorSettings::get_global(cx).gutter;
8669
8670 let context_menu_layout =
8671 if let Some(newest_selection_head) = newest_selection_head {
8672 let newest_selection_point =
8673 newest_selection_head.to_point(&snapshot.display_snapshot);
8674 if (start_row..end_row).contains(&newest_selection_head.row()) {
8675 self.layout_cursor_popovers(
8676 line_height,
8677 &text_hitbox,
8678 content_origin,
8679 right_margin,
8680 start_row,
8681 scroll_pixel_position,
8682 &line_layouts,
8683 newest_selection_head,
8684 newest_selection_point,
8685 &style,
8686 window,
8687 cx,
8688 )
8689 } else {
8690 None
8691 }
8692 } else {
8693 None
8694 };
8695
8696 self.layout_gutter_menu(
8697 line_height,
8698 &text_hitbox,
8699 content_origin,
8700 right_margin,
8701 scroll_pixel_position,
8702 gutter_dimensions.width - gutter_dimensions.left_padding,
8703 window,
8704 cx,
8705 );
8706
8707 let test_indicators = if gutter_settings.runnables {
8708 self.layout_run_indicators(
8709 line_height,
8710 start_row..end_row,
8711 &row_infos,
8712 scroll_pixel_position,
8713 &gutter_dimensions,
8714 &gutter_hitbox,
8715 &display_hunks,
8716 &snapshot,
8717 &mut breakpoint_rows,
8718 window,
8719 cx,
8720 )
8721 } else {
8722 Vec::new()
8723 };
8724
8725 let show_breakpoints = snapshot
8726 .show_breakpoints
8727 .unwrap_or(gutter_settings.breakpoints);
8728 let breakpoints = if show_breakpoints {
8729 self.layout_breakpoints(
8730 line_height,
8731 start_row..end_row,
8732 scroll_pixel_position,
8733 &gutter_dimensions,
8734 &gutter_hitbox,
8735 &display_hunks,
8736 &snapshot,
8737 breakpoint_rows,
8738 &row_infos,
8739 window,
8740 cx,
8741 )
8742 } else {
8743 Vec::new()
8744 };
8745
8746 self.layout_signature_help(
8747 &hitbox,
8748 content_origin,
8749 scroll_pixel_position,
8750 newest_selection_head,
8751 start_row,
8752 &line_layouts,
8753 line_height,
8754 em_width,
8755 context_menu_layout,
8756 window,
8757 cx,
8758 );
8759
8760 if !cx.has_active_drag() {
8761 self.layout_hover_popovers(
8762 &snapshot,
8763 &hitbox,
8764 start_row..end_row,
8765 content_origin,
8766 scroll_pixel_position,
8767 &line_layouts,
8768 line_height,
8769 em_width,
8770 context_menu_layout,
8771 window,
8772 cx,
8773 );
8774 }
8775
8776 let mouse_context_menu = self.layout_mouse_context_menu(
8777 &snapshot,
8778 start_row..end_row,
8779 content_origin,
8780 window,
8781 cx,
8782 );
8783
8784 window.with_element_namespace("crease_toggles", |window| {
8785 self.prepaint_crease_toggles(
8786 &mut crease_toggles,
8787 line_height,
8788 &gutter_dimensions,
8789 gutter_settings,
8790 scroll_pixel_position,
8791 &gutter_hitbox,
8792 window,
8793 cx,
8794 )
8795 });
8796
8797 window.with_element_namespace("expand_toggles", |window| {
8798 self.prepaint_expand_toggles(&mut expand_toggles, window, cx)
8799 });
8800
8801 let minimap = window.with_element_namespace("minimap", |window| {
8802 self.layout_minimap(
8803 &snapshot,
8804 minimap_width,
8805 scroll_position,
8806 &scrollbar_layout_information,
8807 scrollbars_layout.as_ref(),
8808 window,
8809 cx,
8810 )
8811 });
8812
8813 let invisible_symbol_font_size = font_size / 2.;
8814 let tab_invisible = window.text_system().shape_line(
8815 "→".into(),
8816 invisible_symbol_font_size,
8817 &[TextRun {
8818 len: "→".len(),
8819 font: self.style.text.font(),
8820 color: cx.theme().colors().editor_invisible,
8821 background_color: None,
8822 underline: None,
8823 strikethrough: None,
8824 }],
8825 );
8826 let space_invisible = window.text_system().shape_line(
8827 "•".into(),
8828 invisible_symbol_font_size,
8829 &[TextRun {
8830 len: "•".len(),
8831 font: self.style.text.font(),
8832 color: cx.theme().colors().editor_invisible,
8833 background_color: None,
8834 underline: None,
8835 strikethrough: None,
8836 }],
8837 );
8838
8839 let mode = snapshot.mode.clone();
8840
8841 let (diff_hunk_controls, diff_hunk_control_bounds) = if is_read_only {
8842 (vec![], vec![])
8843 } else {
8844 self.layout_diff_hunk_controls(
8845 start_row..end_row,
8846 &row_infos,
8847 &text_hitbox,
8848 newest_selection_head,
8849 line_height,
8850 right_margin,
8851 scroll_pixel_position,
8852 &display_hunks,
8853 &highlighted_rows,
8854 self.editor.clone(),
8855 window,
8856 cx,
8857 )
8858 };
8859
8860 let position_map = Rc::new(PositionMap {
8861 size: bounds.size,
8862 visible_row_range,
8863 scroll_pixel_position,
8864 scroll_max,
8865 line_layouts,
8866 line_height,
8867 em_width,
8868 em_advance,
8869 snapshot,
8870 gutter_hitbox: gutter_hitbox.clone(),
8871 text_hitbox: text_hitbox.clone(),
8872 inline_blame_bounds: inline_blame_layout
8873 .as_ref()
8874 .map(|layout| (layout.bounds, layout.entry.clone())),
8875 display_hunks: display_hunks.clone(),
8876 diff_hunk_control_bounds: diff_hunk_control_bounds.clone(),
8877 });
8878
8879 self.editor.update(cx, |editor, _| {
8880 editor.last_position_map = Some(position_map.clone())
8881 });
8882
8883 EditorLayout {
8884 mode,
8885 position_map,
8886 visible_display_row_range: start_row..end_row,
8887 wrap_guides,
8888 indent_guides,
8889 hitbox,
8890 gutter_hitbox,
8891 display_hunks,
8892 content_origin,
8893 scrollbars_layout,
8894 minimap,
8895 active_rows,
8896 highlighted_rows,
8897 highlighted_ranges,
8898 highlighted_gutter_ranges,
8899 redacted_ranges,
8900 document_colors,
8901 line_elements,
8902 line_numbers,
8903 blamed_display_rows,
8904 inline_diagnostics,
8905 inline_blame_layout,
8906 inline_code_actions,
8907 blocks,
8908 cursors,
8909 visible_cursors,
8910 selections,
8911 inline_completion_popover,
8912 diff_hunk_controls,
8913 mouse_context_menu,
8914 test_indicators,
8915 breakpoints,
8916 crease_toggles,
8917 crease_trailers,
8918 tab_invisible,
8919 space_invisible,
8920 sticky_buffer_header,
8921 expand_toggles,
8922 }
8923 })
8924 })
8925 })
8926 }
8927
8928 fn paint(
8929 &mut self,
8930 _: Option<&GlobalElementId>,
8931 _inspector_id: Option<&gpui::InspectorElementId>,
8932 bounds: Bounds<gpui::Pixels>,
8933 _: &mut Self::RequestLayoutState,
8934 layout: &mut Self::PrepaintState,
8935 window: &mut Window,
8936 cx: &mut App,
8937 ) {
8938 let focus_handle = self.editor.focus_handle(cx);
8939 let key_context = self
8940 .editor
8941 .update(cx, |editor, cx| editor.key_context(window, cx));
8942
8943 window.set_key_context(key_context);
8944 window.handle_input(
8945 &focus_handle,
8946 ElementInputHandler::new(bounds, self.editor.clone()),
8947 cx,
8948 );
8949 self.register_actions(window, cx);
8950 self.register_key_listeners(window, cx, layout);
8951
8952 let text_style = TextStyleRefinement {
8953 font_size: Some(self.style.text.font_size),
8954 line_height: Some(self.style.text.line_height),
8955 ..Default::default()
8956 };
8957 let rem_size = self.rem_size(cx);
8958 window.with_rem_size(rem_size, |window| {
8959 window.with_text_style(Some(text_style), |window| {
8960 window.with_content_mask(Some(ContentMask { bounds }), |window| {
8961 self.paint_mouse_listeners(layout, window, cx);
8962 self.paint_background(layout, window, cx);
8963 self.paint_indent_guides(layout, window, cx);
8964
8965 if layout.gutter_hitbox.size.width > Pixels::ZERO {
8966 self.paint_blamed_display_rows(layout, window, cx);
8967 self.paint_line_numbers(layout, window, cx);
8968 }
8969
8970 self.paint_text(layout, window, cx);
8971
8972 if layout.gutter_hitbox.size.width > Pixels::ZERO {
8973 self.paint_gutter_highlights(layout, window, cx);
8974 self.paint_gutter_indicators(layout, window, cx);
8975 }
8976
8977 if !layout.blocks.is_empty() {
8978 window.with_element_namespace("blocks", |window| {
8979 self.paint_blocks(layout, window, cx);
8980 });
8981 }
8982
8983 window.with_element_namespace("blocks", |window| {
8984 if let Some(mut sticky_header) = layout.sticky_buffer_header.take() {
8985 sticky_header.paint(window, cx)
8986 }
8987 });
8988
8989 self.paint_minimap(layout, window, cx);
8990 self.paint_scrollbars(layout, window, cx);
8991 self.paint_inline_completion_popover(layout, window, cx);
8992 self.paint_mouse_context_menu(layout, window, cx);
8993 });
8994 })
8995 })
8996 }
8997}
8998
8999pub(super) fn gutter_bounds(
9000 editor_bounds: Bounds<Pixels>,
9001 gutter_dimensions: GutterDimensions,
9002) -> Bounds<Pixels> {
9003 Bounds {
9004 origin: editor_bounds.origin,
9005 size: size(gutter_dimensions.width, editor_bounds.size.height),
9006 }
9007}
9008
9009#[derive(Clone, Copy)]
9010struct ContextMenuLayout {
9011 y_flipped: bool,
9012 bounds: Bounds<Pixels>,
9013}
9014
9015/// Holds information required for layouting the editor scrollbars.
9016struct ScrollbarLayoutInformation {
9017 /// The bounds of the editor area (excluding the content offset).
9018 editor_bounds: Bounds<Pixels>,
9019 /// The available range to scroll within the document.
9020 scroll_range: Size<Pixels>,
9021 /// The space available for one glyph in the editor.
9022 glyph_grid_cell: Size<Pixels>,
9023}
9024
9025impl ScrollbarLayoutInformation {
9026 pub fn new(
9027 editor_bounds: Bounds<Pixels>,
9028 glyph_grid_cell: Size<Pixels>,
9029 document_size: Size<Pixels>,
9030 longest_line_blame_width: Pixels,
9031 editor_width: Pixels,
9032 settings: &EditorSettings,
9033 ) -> Self {
9034 let vertical_overscroll = match settings.scroll_beyond_last_line {
9035 ScrollBeyondLastLine::OnePage => editor_bounds.size.height,
9036 ScrollBeyondLastLine::Off => glyph_grid_cell.height,
9037 ScrollBeyondLastLine::VerticalScrollMargin => {
9038 (1.0 + settings.vertical_scroll_margin) * glyph_grid_cell.height
9039 }
9040 };
9041
9042 let right_margin = if document_size.width + longest_line_blame_width >= editor_width {
9043 glyph_grid_cell.width
9044 } else {
9045 px(0.0)
9046 };
9047
9048 let overscroll = size(right_margin + longest_line_blame_width, vertical_overscroll);
9049
9050 let scroll_range = document_size + overscroll;
9051
9052 ScrollbarLayoutInformation {
9053 editor_bounds,
9054 scroll_range,
9055 glyph_grid_cell,
9056 }
9057 }
9058}
9059
9060impl IntoElement for EditorElement {
9061 type Element = Self;
9062
9063 fn into_element(self) -> Self::Element {
9064 self
9065 }
9066}
9067
9068pub struct EditorLayout {
9069 position_map: Rc<PositionMap>,
9070 hitbox: Hitbox,
9071 gutter_hitbox: Hitbox,
9072 content_origin: gpui::Point<Pixels>,
9073 scrollbars_layout: Option<EditorScrollbars>,
9074 minimap: Option<MinimapLayout>,
9075 mode: EditorMode,
9076 wrap_guides: SmallVec<[(Pixels, bool); 2]>,
9077 indent_guides: Option<Vec<IndentGuideLayout>>,
9078 visible_display_row_range: Range<DisplayRow>,
9079 active_rows: BTreeMap<DisplayRow, LineHighlightSpec>,
9080 highlighted_rows: BTreeMap<DisplayRow, LineHighlight>,
9081 line_elements: SmallVec<[AnyElement; 1]>,
9082 line_numbers: Arc<HashMap<MultiBufferRow, LineNumberLayout>>,
9083 display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
9084 blamed_display_rows: Option<Vec<AnyElement>>,
9085 inline_diagnostics: HashMap<DisplayRow, AnyElement>,
9086 inline_blame_layout: Option<InlineBlameLayout>,
9087 inline_code_actions: Option<AnyElement>,
9088 blocks: Vec<BlockLayout>,
9089 highlighted_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
9090 highlighted_gutter_ranges: Vec<(Range<DisplayPoint>, Hsla)>,
9091 redacted_ranges: Vec<Range<DisplayPoint>>,
9092 cursors: Vec<(DisplayPoint, Hsla)>,
9093 visible_cursors: Vec<CursorLayout>,
9094 selections: Vec<(PlayerColor, Vec<SelectionLayout>)>,
9095 test_indicators: Vec<AnyElement>,
9096 breakpoints: Vec<AnyElement>,
9097 crease_toggles: Vec<Option<AnyElement>>,
9098 expand_toggles: Vec<Option<(AnyElement, gpui::Point<Pixels>)>>,
9099 diff_hunk_controls: Vec<AnyElement>,
9100 crease_trailers: Vec<Option<CreaseTrailerLayout>>,
9101 inline_completion_popover: Option<AnyElement>,
9102 mouse_context_menu: Option<AnyElement>,
9103 tab_invisible: ShapedLine,
9104 space_invisible: ShapedLine,
9105 sticky_buffer_header: Option<AnyElement>,
9106 document_colors: Option<(DocumentColorsRenderMode, Vec<(Range<DisplayPoint>, Hsla)>)>,
9107}
9108
9109impl EditorLayout {
9110 fn line_end_overshoot(&self) -> Pixels {
9111 0.15 * self.position_map.line_height
9112 }
9113}
9114
9115struct LineNumberLayout {
9116 shaped_line: ShapedLine,
9117 hitbox: Option<Hitbox>,
9118}
9119
9120struct ColoredRange<T> {
9121 start: T,
9122 end: T,
9123 color: Hsla,
9124}
9125
9126impl Along for ScrollbarAxes {
9127 type Unit = bool;
9128
9129 fn along(&self, axis: ScrollbarAxis) -> Self::Unit {
9130 match axis {
9131 ScrollbarAxis::Horizontal => self.horizontal,
9132 ScrollbarAxis::Vertical => self.vertical,
9133 }
9134 }
9135
9136 fn apply_along(&self, axis: ScrollbarAxis, f: impl FnOnce(Self::Unit) -> Self::Unit) -> Self {
9137 match axis {
9138 ScrollbarAxis::Horizontal => ScrollbarAxes {
9139 horizontal: f(self.horizontal),
9140 vertical: self.vertical,
9141 },
9142 ScrollbarAxis::Vertical => ScrollbarAxes {
9143 horizontal: self.horizontal,
9144 vertical: f(self.vertical),
9145 },
9146 }
9147 }
9148}
9149
9150#[derive(Clone)]
9151struct EditorScrollbars {
9152 pub vertical: Option<ScrollbarLayout>,
9153 pub horizontal: Option<ScrollbarLayout>,
9154 pub visible: bool,
9155}
9156
9157impl EditorScrollbars {
9158 pub fn from_scrollbar_axes(
9159 settings_visibility: ScrollbarAxes,
9160 layout_information: &ScrollbarLayoutInformation,
9161 content_offset: gpui::Point<Pixels>,
9162 scroll_position: gpui::Point<f32>,
9163 scrollbar_width: Pixels,
9164 right_margin: Pixels,
9165 editor_width: Pixels,
9166 show_scrollbars: bool,
9167 scrollbar_state: Option<&ActiveScrollbarState>,
9168 window: &mut Window,
9169 ) -> Self {
9170 let ScrollbarLayoutInformation {
9171 editor_bounds,
9172 scroll_range,
9173 glyph_grid_cell,
9174 } = layout_information;
9175
9176 let viewport_size = size(editor_width, editor_bounds.size.height);
9177
9178 let scrollbar_bounds_for = |axis: ScrollbarAxis| match axis {
9179 ScrollbarAxis::Horizontal => Bounds::from_corner_and_size(
9180 Corner::BottomLeft,
9181 editor_bounds.bottom_left(),
9182 size(
9183 // The horizontal viewport size differs from the space available for the
9184 // horizontal scrollbar, so we have to manually stich it together here.
9185 editor_bounds.size.width - right_margin,
9186 scrollbar_width,
9187 ),
9188 ),
9189 ScrollbarAxis::Vertical => Bounds::from_corner_and_size(
9190 Corner::TopRight,
9191 editor_bounds.top_right(),
9192 size(scrollbar_width, viewport_size.height),
9193 ),
9194 };
9195
9196 let mut create_scrollbar_layout = |axis| {
9197 settings_visibility
9198 .along(axis)
9199 .then(|| {
9200 (
9201 viewport_size.along(axis) - content_offset.along(axis),
9202 scroll_range.along(axis),
9203 )
9204 })
9205 .filter(|(viewport_size, scroll_range)| {
9206 // The scrollbar should only be rendered if the content does
9207 // not entirely fit into the editor
9208 // However, this only applies to the horizontal scrollbar, as information about the
9209 // vertical scrollbar layout is always needed for scrollbar diagnostics.
9210 axis != ScrollbarAxis::Horizontal || viewport_size < scroll_range
9211 })
9212 .map(|(viewport_size, scroll_range)| {
9213 ScrollbarLayout::new(
9214 window.insert_hitbox(scrollbar_bounds_for(axis), HitboxBehavior::Normal),
9215 viewport_size,
9216 scroll_range,
9217 glyph_grid_cell.along(axis),
9218 content_offset.along(axis),
9219 scroll_position.along(axis),
9220 show_scrollbars,
9221 axis,
9222 )
9223 .with_thumb_state(
9224 scrollbar_state.and_then(|state| state.thumb_state_for_axis(axis)),
9225 )
9226 })
9227 };
9228
9229 Self {
9230 vertical: create_scrollbar_layout(ScrollbarAxis::Vertical),
9231 horizontal: create_scrollbar_layout(ScrollbarAxis::Horizontal),
9232 visible: show_scrollbars,
9233 }
9234 }
9235
9236 pub fn iter_scrollbars(&self) -> impl Iterator<Item = (&ScrollbarLayout, ScrollbarAxis)> + '_ {
9237 [
9238 (&self.vertical, ScrollbarAxis::Vertical),
9239 (&self.horizontal, ScrollbarAxis::Horizontal),
9240 ]
9241 .into_iter()
9242 .filter_map(|(scrollbar, axis)| scrollbar.as_ref().map(|s| (s, axis)))
9243 }
9244
9245 /// Returns the currently hovered scrollbar axis, if any.
9246 pub fn get_hovered_axis(&self, window: &Window) -> Option<(&ScrollbarLayout, ScrollbarAxis)> {
9247 self.iter_scrollbars()
9248 .find(|s| s.0.hitbox.is_hovered(window))
9249 }
9250}
9251
9252#[derive(Clone)]
9253struct ScrollbarLayout {
9254 hitbox: Hitbox,
9255 visible_range: Range<f32>,
9256 text_unit_size: Pixels,
9257 thumb_bounds: Option<Bounds<Pixels>>,
9258 thumb_state: ScrollbarThumbState,
9259}
9260
9261impl ScrollbarLayout {
9262 const BORDER_WIDTH: Pixels = px(1.0);
9263 const LINE_MARKER_HEIGHT: Pixels = px(2.0);
9264 const MIN_MARKER_HEIGHT: Pixels = px(5.0);
9265 const MIN_THUMB_SIZE: Pixels = px(25.0);
9266
9267 fn new(
9268 scrollbar_track_hitbox: Hitbox,
9269 viewport_size: Pixels,
9270 scroll_range: Pixels,
9271 glyph_space: Pixels,
9272 content_offset: Pixels,
9273 scroll_position: f32,
9274 show_thumb: bool,
9275 axis: ScrollbarAxis,
9276 ) -> Self {
9277 let track_bounds = scrollbar_track_hitbox.bounds;
9278 // The length of the track available to the scrollbar thumb. We deliberately
9279 // exclude the content size here so that the thumb aligns with the content.
9280 let track_length = track_bounds.size.along(axis) - content_offset;
9281
9282 Self::new_with_hitbox_and_track_length(
9283 scrollbar_track_hitbox,
9284 track_length,
9285 viewport_size,
9286 scroll_range,
9287 glyph_space,
9288 content_offset,
9289 scroll_position,
9290 show_thumb,
9291 axis,
9292 )
9293 }
9294
9295 fn for_minimap(
9296 minimap_track_hitbox: Hitbox,
9297 visible_lines: f32,
9298 total_editor_lines: f32,
9299 minimap_line_height: Pixels,
9300 scroll_position: f32,
9301 minimap_scroll_top: f32,
9302 show_thumb: bool,
9303 ) -> Self {
9304 // The scrollbar thumb size is calculated as
9305 // (visible_content/total_content) × scrollbar_track_length.
9306 //
9307 // For the minimap's thumb layout, we leverage this by setting the
9308 // scrollbar track length to the entire document size (using minimap line
9309 // height). This creates a thumb that exactly represents the editor
9310 // viewport scaled to minimap proportions.
9311 //
9312 // We adjust the thumb position relative to `minimap_scroll_top` to
9313 // accommodate for the deliberately oversized track.
9314 //
9315 // This approach ensures that the minimap thumb accurately reflects the
9316 // editor's current scroll position whilst nicely synchronizing the minimap
9317 // thumb and scrollbar thumb.
9318 let scroll_range = total_editor_lines * minimap_line_height;
9319 let viewport_size = visible_lines * minimap_line_height;
9320
9321 let track_top_offset = -minimap_scroll_top * minimap_line_height;
9322
9323 Self::new_with_hitbox_and_track_length(
9324 minimap_track_hitbox,
9325 scroll_range,
9326 viewport_size,
9327 scroll_range,
9328 minimap_line_height,
9329 track_top_offset,
9330 scroll_position,
9331 show_thumb,
9332 ScrollbarAxis::Vertical,
9333 )
9334 }
9335
9336 fn new_with_hitbox_and_track_length(
9337 scrollbar_track_hitbox: Hitbox,
9338 track_length: Pixels,
9339 viewport_size: Pixels,
9340 scroll_range: Pixels,
9341 glyph_space: Pixels,
9342 content_offset: Pixels,
9343 scroll_position: f32,
9344 show_thumb: bool,
9345 axis: ScrollbarAxis,
9346 ) -> Self {
9347 let text_units_per_page = viewport_size / glyph_space;
9348 let visible_range = scroll_position..scroll_position + text_units_per_page;
9349 let total_text_units = scroll_range / glyph_space;
9350
9351 let thumb_percentage = text_units_per_page / total_text_units;
9352 let thumb_size = (track_length * thumb_percentage)
9353 .max(ScrollbarLayout::MIN_THUMB_SIZE)
9354 .min(track_length);
9355
9356 let text_unit_divisor = (total_text_units - text_units_per_page).max(0.);
9357
9358 let content_larger_than_viewport = text_unit_divisor > 0.;
9359
9360 let text_unit_size = if content_larger_than_viewport {
9361 (track_length - thumb_size) / text_unit_divisor
9362 } else {
9363 glyph_space
9364 };
9365
9366 let thumb_bounds = (show_thumb && content_larger_than_viewport).then(|| {
9367 Self::thumb_bounds(
9368 &scrollbar_track_hitbox,
9369 content_offset,
9370 visible_range.start,
9371 text_unit_size,
9372 thumb_size,
9373 axis,
9374 )
9375 });
9376
9377 ScrollbarLayout {
9378 hitbox: scrollbar_track_hitbox,
9379 visible_range,
9380 text_unit_size,
9381 thumb_bounds,
9382 thumb_state: Default::default(),
9383 }
9384 }
9385
9386 fn with_thumb_state(self, thumb_state: Option<ScrollbarThumbState>) -> Self {
9387 if let Some(thumb_state) = thumb_state {
9388 Self {
9389 thumb_state,
9390 ..self
9391 }
9392 } else {
9393 self
9394 }
9395 }
9396
9397 fn thumb_bounds(
9398 scrollbar_track: &Hitbox,
9399 content_offset: Pixels,
9400 visible_range_start: f32,
9401 text_unit_size: Pixels,
9402 thumb_size: Pixels,
9403 axis: ScrollbarAxis,
9404 ) -> Bounds<Pixels> {
9405 let thumb_origin = scrollbar_track.origin.apply_along(axis, |origin| {
9406 origin + content_offset + visible_range_start * text_unit_size
9407 });
9408 Bounds::new(
9409 thumb_origin,
9410 scrollbar_track.size.apply_along(axis, |_| thumb_size),
9411 )
9412 }
9413
9414 fn thumb_hovered(&self, position: &gpui::Point<Pixels>) -> bool {
9415 self.thumb_bounds
9416 .is_some_and(|bounds| bounds.contains(position))
9417 }
9418
9419 fn marker_quads_for_ranges(
9420 &self,
9421 row_ranges: impl IntoIterator<Item = ColoredRange<DisplayRow>>,
9422 column: Option<usize>,
9423 ) -> Vec<PaintQuad> {
9424 struct MinMax {
9425 min: Pixels,
9426 max: Pixels,
9427 }
9428 let (x_range, height_limit) = if let Some(column) = column {
9429 let column_width = px(((self.hitbox.size.width - Self::BORDER_WIDTH).0 / 3.0).floor());
9430 let start = Self::BORDER_WIDTH + (column as f32 * column_width);
9431 let end = start + column_width;
9432 (
9433 Range { start, end },
9434 MinMax {
9435 min: Self::MIN_MARKER_HEIGHT,
9436 max: px(f32::MAX),
9437 },
9438 )
9439 } else {
9440 (
9441 Range {
9442 start: Self::BORDER_WIDTH,
9443 end: self.hitbox.size.width,
9444 },
9445 MinMax {
9446 min: Self::LINE_MARKER_HEIGHT,
9447 max: Self::LINE_MARKER_HEIGHT,
9448 },
9449 )
9450 };
9451
9452 let row_to_y = |row: DisplayRow| row.as_f32() * self.text_unit_size;
9453 let mut pixel_ranges = row_ranges
9454 .into_iter()
9455 .map(|range| {
9456 let start_y = row_to_y(range.start);
9457 let end_y = row_to_y(range.end)
9458 + self
9459 .text_unit_size
9460 .max(height_limit.min)
9461 .min(height_limit.max);
9462 ColoredRange {
9463 start: start_y,
9464 end: end_y,
9465 color: range.color,
9466 }
9467 })
9468 .peekable();
9469
9470 let mut quads = Vec::new();
9471 while let Some(mut pixel_range) = pixel_ranges.next() {
9472 while let Some(next_pixel_range) = pixel_ranges.peek() {
9473 if pixel_range.end >= next_pixel_range.start - px(1.0)
9474 && pixel_range.color == next_pixel_range.color
9475 {
9476 pixel_range.end = next_pixel_range.end.max(pixel_range.end);
9477 pixel_ranges.next();
9478 } else {
9479 break;
9480 }
9481 }
9482
9483 let bounds = Bounds::from_corners(
9484 point(x_range.start, pixel_range.start),
9485 point(x_range.end, pixel_range.end),
9486 );
9487 quads.push(quad(
9488 bounds,
9489 Corners::default(),
9490 pixel_range.color,
9491 Edges::default(),
9492 Hsla::transparent_black(),
9493 BorderStyle::default(),
9494 ));
9495 }
9496
9497 quads
9498 }
9499}
9500
9501struct MinimapLayout {
9502 pub minimap: AnyElement,
9503 pub thumb_layout: ScrollbarLayout,
9504 pub minimap_scroll_top: f32,
9505 pub minimap_line_height: Pixels,
9506 pub thumb_border_style: MinimapThumbBorder,
9507 pub max_scroll_top: f32,
9508}
9509
9510impl MinimapLayout {
9511 /// The minimum width of the minimap in columns. If the minimap is smaller than this, it will be hidden.
9512 const MINIMAP_MIN_WIDTH_COLUMNS: f32 = 20.;
9513 /// The minimap width as a percentage of the editor width.
9514 const MINIMAP_WIDTH_PCT: f32 = 0.15;
9515 /// Calculates the scroll top offset the minimap editor has to have based on the
9516 /// current scroll progress.
9517 fn calculate_minimap_top_offset(
9518 document_lines: f32,
9519 visible_editor_lines: f32,
9520 visible_minimap_lines: f32,
9521 scroll_position: f32,
9522 ) -> f32 {
9523 let non_visible_document_lines = (document_lines - visible_editor_lines).max(0.);
9524 if non_visible_document_lines == 0. {
9525 0.
9526 } else {
9527 let scroll_percentage = (scroll_position / non_visible_document_lines).clamp(0., 1.);
9528 scroll_percentage * (document_lines - visible_minimap_lines).max(0.)
9529 }
9530 }
9531}
9532
9533struct CreaseTrailerLayout {
9534 element: AnyElement,
9535 bounds: Bounds<Pixels>,
9536}
9537
9538pub(crate) struct PositionMap {
9539 pub size: Size<Pixels>,
9540 pub line_height: Pixels,
9541 pub scroll_pixel_position: gpui::Point<Pixels>,
9542 pub scroll_max: gpui::Point<f32>,
9543 pub em_width: Pixels,
9544 pub em_advance: Pixels,
9545 pub visible_row_range: Range<DisplayRow>,
9546 pub line_layouts: Vec<LineWithInvisibles>,
9547 pub snapshot: EditorSnapshot,
9548 pub text_hitbox: Hitbox,
9549 pub gutter_hitbox: Hitbox,
9550 pub inline_blame_bounds: Option<(Bounds<Pixels>, BlameEntry)>,
9551 pub display_hunks: Vec<(DisplayDiffHunk, Option<Hitbox>)>,
9552 pub diff_hunk_control_bounds: Vec<(DisplayRow, Bounds<Pixels>)>,
9553}
9554
9555#[derive(Debug, Copy, Clone)]
9556pub struct PointForPosition {
9557 pub previous_valid: DisplayPoint,
9558 pub next_valid: DisplayPoint,
9559 pub exact_unclipped: DisplayPoint,
9560 pub column_overshoot_after_line_end: u32,
9561}
9562
9563impl PointForPosition {
9564 pub fn as_valid(&self) -> Option<DisplayPoint> {
9565 if self.previous_valid == self.exact_unclipped && self.next_valid == self.exact_unclipped {
9566 Some(self.previous_valid)
9567 } else {
9568 None
9569 }
9570 }
9571
9572 pub fn intersects_selection(&self, selection: &Selection<DisplayPoint>) -> bool {
9573 let Some(valid_point) = self.as_valid() else {
9574 return false;
9575 };
9576 let range = selection.range();
9577
9578 let candidate_row = valid_point.row();
9579 let candidate_col = valid_point.column();
9580
9581 let start_row = range.start.row();
9582 let start_col = range.start.column();
9583 let end_row = range.end.row();
9584 let end_col = range.end.column();
9585
9586 if candidate_row < start_row || candidate_row > end_row {
9587 false
9588 } else if start_row == end_row {
9589 candidate_col >= start_col && candidate_col < end_col
9590 } else {
9591 if candidate_row == start_row {
9592 candidate_col >= start_col
9593 } else if candidate_row == end_row {
9594 candidate_col < end_col
9595 } else {
9596 true
9597 }
9598 }
9599 }
9600}
9601
9602impl PositionMap {
9603 pub(crate) fn point_for_position(&self, position: gpui::Point<Pixels>) -> PointForPosition {
9604 let text_bounds = self.text_hitbox.bounds;
9605 let scroll_position = self.snapshot.scroll_position();
9606 let position = position - text_bounds.origin;
9607 let y = position.y.max(px(0.)).min(self.size.height);
9608 let x = position.x + (scroll_position.x * self.em_advance);
9609 let row = ((y / self.line_height) + scroll_position.y) as u32;
9610
9611 let (column, x_overshoot_after_line_end) = if let Some(line) = self
9612 .line_layouts
9613 .get(row as usize - scroll_position.y as usize)
9614 {
9615 if let Some(ix) = line.index_for_x(x) {
9616 (ix as u32, px(0.))
9617 } else {
9618 (line.len as u32, px(0.).max(x - line.width))
9619 }
9620 } else {
9621 (0, x)
9622 };
9623
9624 let mut exact_unclipped = DisplayPoint::new(DisplayRow(row), column);
9625 let previous_valid = self.snapshot.clip_point(exact_unclipped, Bias::Left);
9626 let next_valid = self.snapshot.clip_point(exact_unclipped, Bias::Right);
9627
9628 let column_overshoot_after_line_end = (x_overshoot_after_line_end / self.em_advance) as u32;
9629 *exact_unclipped.column_mut() += column_overshoot_after_line_end;
9630 PointForPosition {
9631 previous_valid,
9632 next_valid,
9633 exact_unclipped,
9634 column_overshoot_after_line_end,
9635 }
9636 }
9637}
9638
9639struct BlockLayout {
9640 id: BlockId,
9641 x_offset: Pixels,
9642 row: Option<DisplayRow>,
9643 element: AnyElement,
9644 available_space: Size<AvailableSpace>,
9645 style: BlockStyle,
9646 overlaps_gutter: bool,
9647 is_buffer_header: bool,
9648}
9649
9650pub fn layout_line(
9651 row: DisplayRow,
9652 snapshot: &EditorSnapshot,
9653 style: &EditorStyle,
9654 text_width: Pixels,
9655 is_row_soft_wrapped: impl Copy + Fn(usize) -> bool,
9656 window: &mut Window,
9657 cx: &mut App,
9658) -> LineWithInvisibles {
9659 let chunks = snapshot.highlighted_chunks(row..row + DisplayRow(1), true, style);
9660 LineWithInvisibles::from_chunks(
9661 chunks,
9662 &style,
9663 MAX_LINE_LEN,
9664 1,
9665 &snapshot.mode,
9666 text_width,
9667 is_row_soft_wrapped,
9668 window,
9669 cx,
9670 )
9671 .pop()
9672 .unwrap()
9673}
9674
9675#[derive(Debug)]
9676pub struct IndentGuideLayout {
9677 origin: gpui::Point<Pixels>,
9678 length: Pixels,
9679 single_indent_width: Pixels,
9680 depth: u32,
9681 active: bool,
9682 settings: IndentGuideSettings,
9683}
9684
9685pub struct CursorLayout {
9686 origin: gpui::Point<Pixels>,
9687 block_width: Pixels,
9688 line_height: Pixels,
9689 color: Hsla,
9690 shape: CursorShape,
9691 block_text: Option<ShapedLine>,
9692 cursor_name: Option<AnyElement>,
9693}
9694
9695#[derive(Debug)]
9696pub struct CursorName {
9697 string: SharedString,
9698 color: Hsla,
9699 is_top_row: bool,
9700}
9701
9702impl CursorLayout {
9703 pub fn new(
9704 origin: gpui::Point<Pixels>,
9705 block_width: Pixels,
9706 line_height: Pixels,
9707 color: Hsla,
9708 shape: CursorShape,
9709 block_text: Option<ShapedLine>,
9710 ) -> CursorLayout {
9711 CursorLayout {
9712 origin,
9713 block_width,
9714 line_height,
9715 color,
9716 shape,
9717 block_text,
9718 cursor_name: None,
9719 }
9720 }
9721
9722 pub fn bounding_rect(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
9723 Bounds {
9724 origin: self.origin + origin,
9725 size: size(self.block_width, self.line_height),
9726 }
9727 }
9728
9729 fn bounds(&self, origin: gpui::Point<Pixels>) -> Bounds<Pixels> {
9730 match self.shape {
9731 CursorShape::Bar => Bounds {
9732 origin: self.origin + origin,
9733 size: size(px(2.0), self.line_height),
9734 },
9735 CursorShape::Block | CursorShape::Hollow => Bounds {
9736 origin: self.origin + origin,
9737 size: size(self.block_width, self.line_height),
9738 },
9739 CursorShape::Underline => Bounds {
9740 origin: self.origin
9741 + origin
9742 + gpui::Point::new(Pixels::ZERO, self.line_height - px(2.0)),
9743 size: size(self.block_width, px(2.0)),
9744 },
9745 }
9746 }
9747
9748 pub fn layout(
9749 &mut self,
9750 origin: gpui::Point<Pixels>,
9751 cursor_name: Option<CursorName>,
9752 window: &mut Window,
9753 cx: &mut App,
9754 ) {
9755 if let Some(cursor_name) = cursor_name {
9756 let bounds = self.bounds(origin);
9757 let text_size = self.line_height / 1.5;
9758
9759 let name_origin = if cursor_name.is_top_row {
9760 point(bounds.right() - px(1.), bounds.top())
9761 } else {
9762 match self.shape {
9763 CursorShape::Bar => point(
9764 bounds.right() - px(2.),
9765 bounds.top() - text_size / 2. - px(1.),
9766 ),
9767 _ => point(
9768 bounds.right() - px(1.),
9769 bounds.top() - text_size / 2. - px(1.),
9770 ),
9771 }
9772 };
9773 let mut name_element = div()
9774 .bg(self.color)
9775 .text_size(text_size)
9776 .px_0p5()
9777 .line_height(text_size + px(2.))
9778 .text_color(cursor_name.color)
9779 .child(cursor_name.string.clone())
9780 .into_any_element();
9781
9782 name_element.prepaint_as_root(name_origin, AvailableSpace::min_size(), window, cx);
9783
9784 self.cursor_name = Some(name_element);
9785 }
9786 }
9787
9788 pub fn paint(&mut self, origin: gpui::Point<Pixels>, window: &mut Window, cx: &mut App) {
9789 let bounds = self.bounds(origin);
9790
9791 //Draw background or border quad
9792 let cursor = if matches!(self.shape, CursorShape::Hollow) {
9793 outline(bounds, self.color, BorderStyle::Solid)
9794 } else {
9795 fill(bounds, self.color)
9796 };
9797
9798 if let Some(name) = &mut self.cursor_name {
9799 name.paint(window, cx);
9800 }
9801
9802 window.paint_quad(cursor);
9803
9804 if let Some(block_text) = &self.block_text {
9805 block_text
9806 .paint(self.origin + origin, self.line_height, window, cx)
9807 .log_err();
9808 }
9809 }
9810
9811 pub fn shape(&self) -> CursorShape {
9812 self.shape
9813 }
9814}
9815
9816#[derive(Debug)]
9817pub struct HighlightedRange {
9818 pub start_y: Pixels,
9819 pub line_height: Pixels,
9820 pub lines: Vec<HighlightedRangeLine>,
9821 pub color: Hsla,
9822 pub corner_radius: Pixels,
9823}
9824
9825#[derive(Debug)]
9826pub struct HighlightedRangeLine {
9827 pub start_x: Pixels,
9828 pub end_x: Pixels,
9829}
9830
9831impl HighlightedRange {
9832 pub fn paint(&self, fill: bool, bounds: Bounds<Pixels>, window: &mut Window) {
9833 if self.lines.len() >= 2 && self.lines[0].start_x > self.lines[1].end_x {
9834 self.paint_lines(self.start_y, &self.lines[0..1], fill, bounds, window);
9835 self.paint_lines(
9836 self.start_y + self.line_height,
9837 &self.lines[1..],
9838 fill,
9839 bounds,
9840 window,
9841 );
9842 } else {
9843 self.paint_lines(self.start_y, &self.lines, fill, bounds, window);
9844 }
9845 }
9846
9847 fn paint_lines(
9848 &self,
9849 start_y: Pixels,
9850 lines: &[HighlightedRangeLine],
9851 fill: bool,
9852 _bounds: Bounds<Pixels>,
9853 window: &mut Window,
9854 ) {
9855 if lines.is_empty() {
9856 return;
9857 }
9858
9859 let first_line = lines.first().unwrap();
9860 let last_line = lines.last().unwrap();
9861
9862 let first_top_left = point(first_line.start_x, start_y);
9863 let first_top_right = point(first_line.end_x, start_y);
9864
9865 let curve_height = point(Pixels::ZERO, self.corner_radius);
9866 let curve_width = |start_x: Pixels, end_x: Pixels| {
9867 let max = (end_x - start_x) / 2.;
9868 let width = if max < self.corner_radius {
9869 max
9870 } else {
9871 self.corner_radius
9872 };
9873
9874 point(width, Pixels::ZERO)
9875 };
9876
9877 let top_curve_width = curve_width(first_line.start_x, first_line.end_x);
9878 let mut builder = if fill {
9879 gpui::PathBuilder::fill()
9880 } else {
9881 gpui::PathBuilder::stroke(px(1.))
9882 };
9883 builder.move_to(first_top_right - top_curve_width);
9884 builder.curve_to(first_top_right + curve_height, first_top_right);
9885
9886 let mut iter = lines.iter().enumerate().peekable();
9887 while let Some((ix, line)) = iter.next() {
9888 let bottom_right = point(line.end_x, start_y + (ix + 1) as f32 * self.line_height);
9889
9890 if let Some((_, next_line)) = iter.peek() {
9891 let next_top_right = point(next_line.end_x, bottom_right.y);
9892
9893 match next_top_right.x.partial_cmp(&bottom_right.x).unwrap() {
9894 Ordering::Equal => {
9895 builder.line_to(bottom_right);
9896 }
9897 Ordering::Less => {
9898 let curve_width = curve_width(next_top_right.x, bottom_right.x);
9899 builder.line_to(bottom_right - curve_height);
9900 if self.corner_radius > Pixels::ZERO {
9901 builder.curve_to(bottom_right - curve_width, bottom_right);
9902 }
9903 builder.line_to(next_top_right + curve_width);
9904 if self.corner_radius > Pixels::ZERO {
9905 builder.curve_to(next_top_right + curve_height, next_top_right);
9906 }
9907 }
9908 Ordering::Greater => {
9909 let curve_width = curve_width(bottom_right.x, next_top_right.x);
9910 builder.line_to(bottom_right - curve_height);
9911 if self.corner_radius > Pixels::ZERO {
9912 builder.curve_to(bottom_right + curve_width, bottom_right);
9913 }
9914 builder.line_to(next_top_right - curve_width);
9915 if self.corner_radius > Pixels::ZERO {
9916 builder.curve_to(next_top_right + curve_height, next_top_right);
9917 }
9918 }
9919 }
9920 } else {
9921 let curve_width = curve_width(line.start_x, line.end_x);
9922 builder.line_to(bottom_right - curve_height);
9923 if self.corner_radius > Pixels::ZERO {
9924 builder.curve_to(bottom_right - curve_width, bottom_right);
9925 }
9926
9927 let bottom_left = point(line.start_x, bottom_right.y);
9928 builder.line_to(bottom_left + curve_width);
9929 if self.corner_radius > Pixels::ZERO {
9930 builder.curve_to(bottom_left - curve_height, bottom_left);
9931 }
9932 }
9933 }
9934
9935 if first_line.start_x > last_line.start_x {
9936 let curve_width = curve_width(last_line.start_x, first_line.start_x);
9937 let second_top_left = point(last_line.start_x, start_y + self.line_height);
9938 builder.line_to(second_top_left + curve_height);
9939 if self.corner_radius > Pixels::ZERO {
9940 builder.curve_to(second_top_left + curve_width, second_top_left);
9941 }
9942 let first_bottom_left = point(first_line.start_x, second_top_left.y);
9943 builder.line_to(first_bottom_left - curve_width);
9944 if self.corner_radius > Pixels::ZERO {
9945 builder.curve_to(first_bottom_left - curve_height, first_bottom_left);
9946 }
9947 }
9948
9949 builder.line_to(first_top_left + curve_height);
9950 if self.corner_radius > Pixels::ZERO {
9951 builder.curve_to(first_top_left + top_curve_width, first_top_left);
9952 }
9953 builder.line_to(first_top_right - top_curve_width);
9954
9955 if let Ok(path) = builder.build() {
9956 window.paint_path(path, self.color);
9957 }
9958 }
9959}
9960
9961enum CursorPopoverType {
9962 CodeContextMenu,
9963 EditPrediction,
9964}
9965
9966pub fn scale_vertical_mouse_autoscroll_delta(delta: Pixels) -> f32 {
9967 (delta.pow(1.2) / 100.0).min(px(3.0)).into()
9968}
9969
9970fn scale_horizontal_mouse_autoscroll_delta(delta: Pixels) -> f32 {
9971 (delta.pow(1.2) / 300.0).into()
9972}
9973
9974pub fn register_action<T: Action>(
9975 editor: &Entity<Editor>,
9976 window: &mut Window,
9977 listener: impl Fn(&mut Editor, &T, &mut Window, &mut Context<Editor>) + 'static,
9978) {
9979 let editor = editor.clone();
9980 window.on_action(TypeId::of::<T>(), move |action, phase, window, cx| {
9981 let action = action.downcast_ref().unwrap();
9982 if phase == DispatchPhase::Bubble {
9983 editor.update(cx, |editor, cx| {
9984 listener(editor, action, window, cx);
9985 })
9986 }
9987 })
9988}
9989
9990fn compute_auto_height_layout(
9991 editor: &mut Editor,
9992 min_lines: usize,
9993 max_lines: Option<usize>,
9994 max_line_number_width: Pixels,
9995 known_dimensions: Size<Option<Pixels>>,
9996 available_width: AvailableSpace,
9997 window: &mut Window,
9998 cx: &mut Context<Editor>,
9999) -> Option<Size<Pixels>> {
10000 let width = known_dimensions.width.or({
10001 if let AvailableSpace::Definite(available_width) = available_width {
10002 Some(available_width)
10003 } else {
10004 None
10005 }
10006 })?;
10007 if let Some(height) = known_dimensions.height {
10008 return Some(size(width, height));
10009 }
10010
10011 let style = editor.style.as_ref().unwrap();
10012 let font_id = window.text_system().resolve_font(&style.text.font());
10013 let font_size = style.text.font_size.to_pixels(window.rem_size());
10014 let line_height = style.text.line_height_in_pixels(window.rem_size());
10015 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
10016
10017 let mut snapshot = editor.snapshot(window, cx);
10018 let gutter_dimensions = snapshot
10019 .gutter_dimensions(font_id, font_size, max_line_number_width, cx)
10020 .or_else(|| {
10021 editor
10022 .offset_content
10023 .then(|| GutterDimensions::default_with_margin(font_id, font_size, cx))
10024 })
10025 .unwrap_or_default();
10026
10027 editor.gutter_dimensions = gutter_dimensions;
10028 let text_width = width - gutter_dimensions.width;
10029 let overscroll = size(em_width, px(0.));
10030
10031 let editor_width = text_width - gutter_dimensions.margin - overscroll.width - em_width;
10032 if !matches!(editor.soft_wrap_mode(cx), SoftWrap::None) {
10033 if editor.set_wrap_width(Some(editor_width), cx) {
10034 snapshot = editor.snapshot(window, cx);
10035 }
10036 }
10037
10038 let scroll_height = (snapshot.max_point().row().next_row().0 as f32) * line_height;
10039
10040 let min_height = line_height * min_lines as f32;
10041 let content_height = scroll_height.max(min_height);
10042
10043 let final_height = if let Some(max_lines) = max_lines {
10044 let max_height = line_height * max_lines as f32;
10045 content_height.min(max_height)
10046 } else {
10047 content_height
10048 };
10049
10050 Some(size(width, final_height))
10051}
10052
10053#[cfg(test)]
10054mod tests {
10055 use super::*;
10056 use crate::{
10057 Editor, MultiBuffer, SelectionEffects,
10058 display_map::{BlockPlacement, BlockProperties},
10059 editor_tests::{init_test, update_test_language_settings},
10060 };
10061 use gpui::{TestAppContext, VisualTestContext};
10062 use language::language_settings;
10063 use log::info;
10064 use std::num::NonZeroU32;
10065 use util::test::sample_text;
10066
10067 #[gpui::test]
10068 fn test_shape_line_numbers(cx: &mut TestAppContext) {
10069 init_test(cx, |_| {});
10070 let window = cx.add_window(|window, cx| {
10071 let buffer = MultiBuffer::build_simple(&sample_text(6, 6, 'a'), cx);
10072 Editor::new(EditorMode::full(), buffer, None, window, cx)
10073 });
10074
10075 let editor = window.root(cx).unwrap();
10076 let style = cx.update(|cx| editor.read(cx).style().unwrap().clone());
10077 let line_height = window
10078 .update(cx, |_, window, _| {
10079 style.text.line_height_in_pixels(window.rem_size())
10080 })
10081 .unwrap();
10082 let element = EditorElement::new(&editor, style);
10083 let snapshot = window
10084 .update(cx, |editor, window, cx| editor.snapshot(window, cx))
10085 .unwrap();
10086
10087 let layouts = cx
10088 .update_window(*window, |_, window, cx| {
10089 element.layout_line_numbers(
10090 None,
10091 GutterDimensions {
10092 left_padding: Pixels::ZERO,
10093 right_padding: Pixels::ZERO,
10094 width: px(30.0),
10095 margin: Pixels::ZERO,
10096 git_blame_entries_width: None,
10097 },
10098 line_height,
10099 gpui::Point::default(),
10100 DisplayRow(0)..DisplayRow(6),
10101 &(0..6)
10102 .map(|row| RowInfo {
10103 buffer_row: Some(row),
10104 ..Default::default()
10105 })
10106 .collect::<Vec<_>>(),
10107 &BTreeMap::default(),
10108 Some(DisplayPoint::new(DisplayRow(0), 0)),
10109 &snapshot,
10110 window,
10111 cx,
10112 )
10113 })
10114 .unwrap();
10115 assert_eq!(layouts.len(), 6);
10116
10117 let relative_rows = window
10118 .update(cx, |editor, window, cx| {
10119 let snapshot = editor.snapshot(window, cx);
10120 element.calculate_relative_line_numbers(
10121 &snapshot,
10122 &(DisplayRow(0)..DisplayRow(6)),
10123 Some(DisplayRow(3)),
10124 )
10125 })
10126 .unwrap();
10127 assert_eq!(relative_rows[&DisplayRow(0)], 3);
10128 assert_eq!(relative_rows[&DisplayRow(1)], 2);
10129 assert_eq!(relative_rows[&DisplayRow(2)], 1);
10130 // current line has no relative number
10131 assert_eq!(relative_rows[&DisplayRow(4)], 1);
10132 assert_eq!(relative_rows[&DisplayRow(5)], 2);
10133
10134 // works if cursor is before screen
10135 let relative_rows = window
10136 .update(cx, |editor, window, cx| {
10137 let snapshot = editor.snapshot(window, cx);
10138 element.calculate_relative_line_numbers(
10139 &snapshot,
10140 &(DisplayRow(3)..DisplayRow(6)),
10141 Some(DisplayRow(1)),
10142 )
10143 })
10144 .unwrap();
10145 assert_eq!(relative_rows.len(), 3);
10146 assert_eq!(relative_rows[&DisplayRow(3)], 2);
10147 assert_eq!(relative_rows[&DisplayRow(4)], 3);
10148 assert_eq!(relative_rows[&DisplayRow(5)], 4);
10149
10150 // works if cursor is after screen
10151 let relative_rows = window
10152 .update(cx, |editor, window, cx| {
10153 let snapshot = editor.snapshot(window, cx);
10154 element.calculate_relative_line_numbers(
10155 &snapshot,
10156 &(DisplayRow(0)..DisplayRow(3)),
10157 Some(DisplayRow(6)),
10158 )
10159 })
10160 .unwrap();
10161 assert_eq!(relative_rows.len(), 3);
10162 assert_eq!(relative_rows[&DisplayRow(0)], 5);
10163 assert_eq!(relative_rows[&DisplayRow(1)], 4);
10164 assert_eq!(relative_rows[&DisplayRow(2)], 3);
10165 }
10166
10167 #[gpui::test]
10168 async fn test_vim_visual_selections(cx: &mut TestAppContext) {
10169 init_test(cx, |_| {});
10170
10171 let window = cx.add_window(|window, cx| {
10172 let buffer = MultiBuffer::build_simple(&(sample_text(6, 6, 'a') + "\n"), cx);
10173 Editor::new(EditorMode::full(), buffer, None, window, cx)
10174 });
10175 let cx = &mut VisualTestContext::from_window(*window, cx);
10176 let editor = window.root(cx).unwrap();
10177 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10178
10179 window
10180 .update(cx, |editor, window, cx| {
10181 editor.cursor_shape = CursorShape::Block;
10182 editor.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {
10183 s.select_ranges([
10184 Point::new(0, 0)..Point::new(1, 0),
10185 Point::new(3, 2)..Point::new(3, 3),
10186 Point::new(5, 6)..Point::new(6, 0),
10187 ]);
10188 });
10189 })
10190 .unwrap();
10191
10192 let (_, state) = cx.draw(
10193 point(px(500.), px(500.)),
10194 size(px(500.), px(500.)),
10195 |_, _| EditorElement::new(&editor, style),
10196 );
10197
10198 assert_eq!(state.selections.len(), 1);
10199 let local_selections = &state.selections[0].1;
10200 assert_eq!(local_selections.len(), 3);
10201 // moves cursor back one line
10202 assert_eq!(
10203 local_selections[0].head,
10204 DisplayPoint::new(DisplayRow(0), 6)
10205 );
10206 assert_eq!(
10207 local_selections[0].range,
10208 DisplayPoint::new(DisplayRow(0), 0)..DisplayPoint::new(DisplayRow(1), 0)
10209 );
10210
10211 // moves cursor back one column
10212 assert_eq!(
10213 local_selections[1].range,
10214 DisplayPoint::new(DisplayRow(3), 2)..DisplayPoint::new(DisplayRow(3), 3)
10215 );
10216 assert_eq!(
10217 local_selections[1].head,
10218 DisplayPoint::new(DisplayRow(3), 2)
10219 );
10220
10221 // leaves cursor on the max point
10222 assert_eq!(
10223 local_selections[2].range,
10224 DisplayPoint::new(DisplayRow(5), 6)..DisplayPoint::new(DisplayRow(6), 0)
10225 );
10226 assert_eq!(
10227 local_selections[2].head,
10228 DisplayPoint::new(DisplayRow(6), 0)
10229 );
10230
10231 // active lines does not include 1 (even though the range of the selection does)
10232 assert_eq!(
10233 state.active_rows.keys().cloned().collect::<Vec<_>>(),
10234 vec![DisplayRow(0), DisplayRow(3), DisplayRow(5), DisplayRow(6)]
10235 );
10236 }
10237
10238 #[gpui::test]
10239 fn test_layout_with_placeholder_text_and_blocks(cx: &mut TestAppContext) {
10240 init_test(cx, |_| {});
10241
10242 let window = cx.add_window(|window, cx| {
10243 let buffer = MultiBuffer::build_simple("", cx);
10244 Editor::new(EditorMode::full(), buffer, None, window, cx)
10245 });
10246 let cx = &mut VisualTestContext::from_window(*window, cx);
10247 let editor = window.root(cx).unwrap();
10248 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10249 window
10250 .update(cx, |editor, window, cx| {
10251 editor.set_placeholder_text("hello", cx);
10252 editor.insert_blocks(
10253 [BlockProperties {
10254 style: BlockStyle::Fixed,
10255 placement: BlockPlacement::Above(Anchor::min()),
10256 height: Some(3),
10257 render: Arc::new(|cx| div().h(3. * cx.window.line_height()).into_any()),
10258 priority: 0,
10259 render_in_minimap: true,
10260 }],
10261 None,
10262 cx,
10263 );
10264
10265 // Blur the editor so that it displays placeholder text.
10266 window.blur();
10267 })
10268 .unwrap();
10269
10270 let (_, state) = cx.draw(
10271 point(px(500.), px(500.)),
10272 size(px(500.), px(500.)),
10273 |_, _| EditorElement::new(&editor, style),
10274 );
10275 assert_eq!(state.position_map.line_layouts.len(), 4);
10276 assert_eq!(state.line_numbers.len(), 1);
10277 assert_eq!(
10278 state
10279 .line_numbers
10280 .get(&MultiBufferRow(0))
10281 .map(|line_number| line_number.shaped_line.text.as_ref()),
10282 Some("1")
10283 );
10284 }
10285
10286 #[gpui::test]
10287 fn test_all_invisibles_drawing(cx: &mut TestAppContext) {
10288 const TAB_SIZE: u32 = 4;
10289
10290 let input_text = "\t \t|\t| a b";
10291 let expected_invisibles = vec![
10292 Invisible::Tab {
10293 line_start_offset: 0,
10294 line_end_offset: TAB_SIZE as usize,
10295 },
10296 Invisible::Whitespace {
10297 line_offset: TAB_SIZE as usize,
10298 },
10299 Invisible::Tab {
10300 line_start_offset: TAB_SIZE as usize + 1,
10301 line_end_offset: TAB_SIZE as usize * 2,
10302 },
10303 Invisible::Tab {
10304 line_start_offset: TAB_SIZE as usize * 2 + 1,
10305 line_end_offset: TAB_SIZE as usize * 3,
10306 },
10307 Invisible::Whitespace {
10308 line_offset: TAB_SIZE as usize * 3 + 1,
10309 },
10310 Invisible::Whitespace {
10311 line_offset: TAB_SIZE as usize * 3 + 3,
10312 },
10313 ];
10314 assert_eq!(
10315 expected_invisibles.len(),
10316 input_text
10317 .chars()
10318 .filter(|initial_char| initial_char.is_whitespace())
10319 .count(),
10320 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
10321 );
10322
10323 for show_line_numbers in [true, false] {
10324 init_test(cx, |s| {
10325 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10326 s.defaults.tab_size = NonZeroU32::new(TAB_SIZE);
10327 });
10328
10329 let actual_invisibles = collect_invisibles_from_new_editor(
10330 cx,
10331 EditorMode::full(),
10332 input_text,
10333 px(500.0),
10334 show_line_numbers,
10335 );
10336
10337 assert_eq!(expected_invisibles, actual_invisibles);
10338 }
10339 }
10340
10341 #[gpui::test]
10342 fn test_invisibles_dont_appear_in_certain_editors(cx: &mut TestAppContext) {
10343 init_test(cx, |s| {
10344 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10345 s.defaults.tab_size = NonZeroU32::new(4);
10346 });
10347
10348 for editor_mode_without_invisibles in [
10349 EditorMode::SingleLine { auto_width: false },
10350 EditorMode::AutoHeight {
10351 min_lines: 1,
10352 max_lines: Some(100),
10353 },
10354 ] {
10355 for show_line_numbers in [true, false] {
10356 let invisibles = collect_invisibles_from_new_editor(
10357 cx,
10358 editor_mode_without_invisibles.clone(),
10359 "\t\t\t| | a b",
10360 px(500.0),
10361 show_line_numbers,
10362 );
10363 assert!(
10364 invisibles.is_empty(),
10365 "For editor mode {editor_mode_without_invisibles:?} no invisibles was expected but got {invisibles:?}"
10366 );
10367 }
10368 }
10369 }
10370
10371 #[gpui::test]
10372 fn test_wrapped_invisibles_drawing(cx: &mut TestAppContext) {
10373 let tab_size = 4;
10374 let input_text = "a\tbcd ".repeat(9);
10375 let repeated_invisibles = [
10376 Invisible::Tab {
10377 line_start_offset: 1,
10378 line_end_offset: tab_size as usize,
10379 },
10380 Invisible::Whitespace {
10381 line_offset: tab_size as usize + 3,
10382 },
10383 Invisible::Whitespace {
10384 line_offset: tab_size as usize + 4,
10385 },
10386 Invisible::Whitespace {
10387 line_offset: tab_size as usize + 5,
10388 },
10389 Invisible::Whitespace {
10390 line_offset: tab_size as usize + 6,
10391 },
10392 Invisible::Whitespace {
10393 line_offset: tab_size as usize + 7,
10394 },
10395 ];
10396 let expected_invisibles = std::iter::once(repeated_invisibles)
10397 .cycle()
10398 .take(9)
10399 .flatten()
10400 .collect::<Vec<_>>();
10401 assert_eq!(
10402 expected_invisibles.len(),
10403 input_text
10404 .chars()
10405 .filter(|initial_char| initial_char.is_whitespace())
10406 .count(),
10407 "Hardcoded expected invisibles differ from the actual ones in '{input_text}'"
10408 );
10409 info!("Expected invisibles: {expected_invisibles:?}");
10410
10411 init_test(cx, |_| {});
10412
10413 // Put the same string with repeating whitespace pattern into editors of various size,
10414 // take deliberately small steps during resizing, to put all whitespace kinds near the wrap point.
10415 let resize_step = 10.0;
10416 let mut editor_width = 200.0;
10417 while editor_width <= 1000.0 {
10418 for show_line_numbers in [true, false] {
10419 update_test_language_settings(cx, |s| {
10420 s.defaults.tab_size = NonZeroU32::new(tab_size);
10421 s.defaults.show_whitespaces = Some(ShowWhitespaceSetting::All);
10422 s.defaults.preferred_line_length = Some(editor_width as u32);
10423 s.defaults.soft_wrap = Some(language_settings::SoftWrap::PreferredLineLength);
10424 });
10425
10426 let actual_invisibles = collect_invisibles_from_new_editor(
10427 cx,
10428 EditorMode::full(),
10429 &input_text,
10430 px(editor_width),
10431 show_line_numbers,
10432 );
10433
10434 // Whatever the editor size is, ensure it has the same invisible kinds in the same order
10435 // (no good guarantees about the offsets: wrapping could trigger padding and its tests should check the offsets).
10436 let mut i = 0;
10437 for (actual_index, actual_invisible) in actual_invisibles.iter().enumerate() {
10438 i = actual_index;
10439 match expected_invisibles.get(i) {
10440 Some(expected_invisible) => match (expected_invisible, actual_invisible) {
10441 (Invisible::Whitespace { .. }, Invisible::Whitespace { .. })
10442 | (Invisible::Tab { .. }, Invisible::Tab { .. }) => {}
10443 _ => {
10444 panic!(
10445 "At index {i}, expected invisible {expected_invisible:?} does not match actual {actual_invisible:?} by kind. Actual invisibles: {actual_invisibles:?}"
10446 )
10447 }
10448 },
10449 None => {
10450 panic!("Unexpected extra invisible {actual_invisible:?} at index {i}")
10451 }
10452 }
10453 }
10454 let missing_expected_invisibles = &expected_invisibles[i + 1..];
10455 assert!(
10456 missing_expected_invisibles.is_empty(),
10457 "Missing expected invisibles after index {i}: {missing_expected_invisibles:?}"
10458 );
10459
10460 editor_width += resize_step;
10461 }
10462 }
10463 }
10464
10465 fn collect_invisibles_from_new_editor(
10466 cx: &mut TestAppContext,
10467 editor_mode: EditorMode,
10468 input_text: &str,
10469 editor_width: Pixels,
10470 show_line_numbers: bool,
10471 ) -> Vec<Invisible> {
10472 info!(
10473 "Creating editor with mode {editor_mode:?}, width {}px and text '{input_text}'",
10474 editor_width.0
10475 );
10476 let window = cx.add_window(|window, cx| {
10477 let buffer = MultiBuffer::build_simple(input_text, cx);
10478 Editor::new(editor_mode, buffer, None, window, cx)
10479 });
10480 let cx = &mut VisualTestContext::from_window(*window, cx);
10481 let editor = window.root(cx).unwrap();
10482
10483 let style = cx.update(|_, cx| editor.read(cx).style().unwrap().clone());
10484 window
10485 .update(cx, |editor, _, cx| {
10486 editor.set_soft_wrap_mode(language_settings::SoftWrap::EditorWidth, cx);
10487 editor.set_wrap_width(Some(editor_width), cx);
10488 editor.set_show_line_numbers(show_line_numbers, cx);
10489 })
10490 .unwrap();
10491 let (_, state) = cx.draw(
10492 point(px(500.), px(500.)),
10493 size(px(500.), px(500.)),
10494 |_, _| EditorElement::new(&editor, style),
10495 );
10496 state
10497 .position_map
10498 .line_layouts
10499 .iter()
10500 .flat_map(|line_with_invisibles| &line_with_invisibles.invisibles)
10501 .cloned()
10502 .collect()
10503 }
10504}