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LibWeb: Treat percentage heights as "auto" if unresolvable
If the containing block has indefinite height, we can't resolve percentage heights against it. Instead of treating it as 0 by accident, let's treat it as "auto" on purpose. This brings back the cheek borders on Acid2.
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Notes:
sideshowbarker
2024-07-17 07:19:14 +09:00
Author: https://github.com/awesomekling Commit: https://github.com/SerenityOS/serenity/commit/bfcb4d88cf
@ -318,10 +318,13 @@ float BlockFormattingContext::compute_theoretical_height(LayoutState const& stat
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if (is<ReplacedBox>(box)) {
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height = compute_height_for_replaced_element(state, verify_cast<ReplacedBox>(box));
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} else {
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if (box.computed_values().height().is_auto())
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// NOTE: We treat percentage heights as "auto" if the containing block has indefinite height.
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if (box.computed_values().height().is_auto()
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|| (box.computed_values().height().is_percentage() && !state.get(*box.containing_block()).has_definite_height())) {
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height = compute_auto_height_for_block_level_element(state, box);
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else
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} else {
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height = computed_values.height().resolved(box, containing_block_height).to_px(box);
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}
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}
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auto specified_max_height = computed_values.max_height().resolved(box, containing_block_height).resolved(box);
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