b9380a8a03
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The strut half-leading calculation in apply_vertical_align used the effective line height (inflated by tall inline-block elements like images) instead of the CSS computed line-height. For a line with a 76px image and CSS line-height: 15px, the strut got half_leading = (76 - font_height)/2 ≈ 30, inflating descent by ~30px. This caused floated containers to overflow their parents, leaking through shared BFC float contexts and displacing sibling floats. Fixes: pass CSS computed line-height separately for strut calculation; also pass parent font family/weight/style for accurate strut metrics. Adds float=left/right annotations to layout tree dumps for debugging. 32 WPT tests promoted from known_fail to pass. BMOW page sidebar moves from x=73 to x=829 (correct float:right), content from y=4375 to y=114. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
40 lines
1.8 KiB
Plaintext
40 lines
1.8 KiB
Plaintext
LayoutBox node=#1 tag=html box=block
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content: (0, 0, 800, 67.2)
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padding: 0 0 0 0
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border: 0 0 0 0
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margin: 0 0 0 0
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LayoutBox node=#8 tag=body box=block
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content: (8, 16, 784, 35.2)
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padding: 0 0 0 0
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border: 0 0 0 0
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margin: 8 8 8 8
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LayoutBox node=#10 tag=div box=block float=left
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content: (8, 16, 200, 40)
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padding: 0 0 0 0
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border: 0 0 0 0
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margin: 0 0 0 0
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inline_context: 0 lines, height=0, max_width=0
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LayoutBox node=#12 tag=p box=block
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content: (8, 16, 784, 19.2)
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padding: 0 0 0 0
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border: 0 0 0 0
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margin: 16 0 16 0
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inline_context: 1 lines, height=19.2, max_width=277.28625
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line[0]: rect=(208, 16, 277.28625, 19.2) fragments=10
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frag[0]: rect=(208, 17.6, 29.908957, 16) text="Short" start=false end=false
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frag[1]: rect=(240.96329, 17.6, 21.321585, 16) text="text" start=false end=false
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frag[2]: rect=(265.3392, 17.6, 33.527164, 16) text="wraps" start=false end=false
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frag[3]: rect=(301.9207, 17.6, 40.293686, 16) text="around" start=false end=false
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frag[4]: rect=(345.26868, 17.6, 18.126286, 16) text="the" start=false end=false
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frag[5]: rect=(366.44928, 17.6, 25.010277, 16) text="float" start=false end=false
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frag[6]: rect=(394.5139, 17.6, 14.367107, 16) text="on" start=false end=false
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frag[7]: rect=(411.9353, 17.6, 18.126286, 16) text="the" start=false end=false
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frag[8]: rect=(433.1159, 17.6, 26.60793, 16) text="right" start=false end=false
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frag[9]: rect=(462.77817, 17.6, 22.508076, 16) text="side" start=false end=false
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LayoutBox node=#13 tag=anonymous box=anon
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content: (0, -8, 277.2864, 16)
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padding: 0 0 0 0
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border: 0 0 0 0
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margin: 0 0 0 0
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text: "Short text wraps aro..."
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