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LibWeb: Add a way to resolve calc() values without a layout node

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Instead of a layout node, you can pass a new Length::ResolutionContext
struct which contains everything needed to resolve calc() lengths.
This commit is contained in:
Andreas Kling 2023-06-02 12:39:39 +02:00
parent 2ade229f27
commit df8a96ee00
Notes: sideshowbarker 2024-07-17 05:41:34 +09:00
5 changed files with 107 additions and 75 deletions
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17
Userland/Libraries/LibWeb/CSS/Length.cpp
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@ -144,6 +144,23 @@ CSSPixels Length::viewport_relative_length_to_px(CSSPixelRect const& viewport_re
}
}
Length::ResolutionContext Length::ResolutionContext::for_layout_node(Layout::Node const& node)
{
auto const* root_element = node.document().document_element();
VERIFY(root_element);
VERIFY(root_element->layout_node());
return Length::ResolutionContext {
.viewport_rect = node.browsing_context().viewport_rect(),
.font_metrics = { node.computed_values().font_size(), node.font().pixel_metrics(), node.line_height() },
.root_font_metrics = { root_element->layout_node()->computed_values().font_size(), root_element->layout_node()->font().pixel_metrics(), root_element->layout_node()->line_height() },
};
}
CSSPixels Length::to_px(ResolutionContext const& context) const
{
return to_px(context.viewport_rect, context.font_metrics, context.root_font_metrics);
}
CSSPixels Length::to_px(Layout::Node const& layout_node) const
{
if (is_auto()) {