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Three display list / layout bugs fixed:
1. Float+stacking-context elements were invisible ("triple skip"):
collect_stacking_participants unconditionally skipped all floats,
even those creating stacking contexts. Now only skips simple floats.
(CSS 2.1 Appendix E steps 2/7)
2. Abs-pos inline children inside IFCs were never laid out or rendered:
- Layout: FormattingContext::Inline now collects abs-pos/fixed children
into pending_absolutes for deferred layout
- Display list: render_non_inline_descendants renders abs-pos/fixed
inline children via render_layout_box_normal
3. Stacking context anonymous text children were double-painted:
render_stacking_context now skips Anonymous children when the parent
has an IFC (they're already rendered by the IFC fragment system)
Also adds guards against abs-pos inline + z-index double-render, and
promotes WPT test static-position-inline-level-absolute-in-block-level-
context-013 from known_fail to pass.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
8 lines
400 B
Plaintext
8 lines
400 B
Plaintext
DisplayList items=6
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SolidRect rect=(8, 8, 200, 100) color=#d3d3d3
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SolidRect rect=(28, 28, 100, 60) color=#ff0000
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Text rect=(28, 29.6, 39.03671, 16) text="Behind" color=#000000 font_size=16
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SolidRect rect=(8, 8, 150, 40) color=#008000
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Text rect=(8, 9.6, 11.2422905, 16) text="In" color=#000000 font_size=16
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Text rect=(22.296623, 9.6, 27.500734, 16) text="front" color=#000000 font_size=16
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