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LibWeb: Allow % height of a % height parent in block-formatted elements

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With this you can start to see Francine's face in the CSS oil painting
(https://diana-adrianne.com/purecss-francine/)
This commit is contained in:
MacDue 2022-08-07 20:22:55 +01:00 • committed by Andreas Kling
parent 0e8dafcbb8
commit a6505f6e6d
Notes: sideshowbarker 2024-07-17 18:49:10 +09:00
1 changed files with 4 additions and 13 deletions
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17
Userland/Libraries/LibWeb/Layout/BlockFormattingContext.cpp
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@ -311,33 +311,24 @@ void BlockFormattingContext::compute_width_for_block_level_replaced_element_in_n
float BlockFormattingContext::compute_theoretical_height(LayoutState const& state, Box const& box)
{
auto const& computed_values = box.computed_values();
auto const& containing_block = *box.containing_block();
auto containing_block_height = CSS::Length::make_px(containing_block_height_for(box, state));
auto is_absolute = [](Optional<CSS::LengthPercentage> const& length_percentage) {
return length_percentage.has_value() && length_percentage->is_length() && length_percentage->length().is_absolute();
};
// Then work out what the height is, based on box type and CSS properties.
float height = 0;
if (is<ReplacedBox>(box)) {
height = compute_height_for_replaced_element(state, verify_cast<ReplacedBox>(box));
} else {
if (box.computed_values().height().is_auto()
|| (computed_values.height().is_percentage() && !is_absolute(containing_block.computed_values().height()))) {
if (box.computed_values().height().is_auto())
height = compute_auto_height_for_block_level_element(state, box);
} else {
else
height = computed_values.height().resolved(box, containing_block_height).to_px(box);
}
}
auto specified_max_height = computed_values.max_height().resolved(box, containing_block_height).resolved(box);
if (!specified_max_height.is_auto()
&& !(computed_values.max_height().is_percentage() && !is_absolute(containing_block.computed_values().height())))
if (!specified_max_height.is_auto())
height = min(height, specified_max_height.to_px(box));
auto specified_min_height = computed_values.min_height().resolved(box, containing_block_height).resolved(box);
if (!specified_min_height.is_auto()
&& !(computed_values.min_height().is_percentage() && !is_absolute(containing_block.computed_values().height())))
if (!specified_min_height.is_auto())
height = max(height, specified_min_height.to_px(box));
return height;
}