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73 lines
2.6 KiB
C++
73 lines
2.6 KiB
C++
#include <LibHTML/CSS/StyledNode.h>
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#include <LibHTML/DOM/Element.h>
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#include <LibHTML/Layout/LayoutBlock.h>
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LayoutBlock::LayoutBlock(const Node* node, const StyledNode* styled_node)
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: LayoutNode(node, styled_node)
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{
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}
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LayoutBlock::~LayoutBlock()
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{
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}
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LayoutNode& LayoutBlock::inline_wrapper()
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{
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if (!last_child() || !last_child()->is_block()) {
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append_child(adopt(*new LayoutBlock(nullptr, nullptr)));
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}
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return *last_child();
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}
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void LayoutBlock::layout()
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{
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compute_width();
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LayoutNode::layout();
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compute_height();
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}
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void LayoutBlock::compute_width()
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{
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if (!styled_node()) {
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// I guess the size is "auto" in this case.
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return;
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}
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auto auto_value= LengthStyleValue::create({});
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auto& styled_node = *this->styled_node();
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auto width = styled_node.property("width").value_or(auto_value);
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auto zero_value = LengthStyleValue::create(Length(0, Length::Type::Absolute));
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auto margin_left = styled_node.property("margin-left").value_or(zero_value);
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auto margin_right = styled_node.property("margin-right").value_or(zero_value);
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auto border_left = styled_node.property("border-left").value_or(zero_value);
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auto border_right = styled_node.property("border-right").value_or(zero_value);
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auto padding_left = styled_node.property("padding-left").value_or(zero_value);
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auto padding_right = styled_node.property("padding-right").value_or(zero_value);
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dbg() << " Left: " << margin_left->to_string() << "+" << border_left->to_string() << "+" << padding_left->to_string();
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dbg() << "Right: " << margin_right->to_string() << "+" << border_right->to_string() << "+" << padding_right->to_string();
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int total_px = 0;
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for (auto& value : { margin_left, border_left, padding_left, width, padding_right, border_right, margin_right }) {
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total_px += value->to_length().to_px();
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}
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dbg() << "Total: " << total_px;
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// 10.3.3 Block-level, non-replaced elements in normal flow
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// If 'width' is not 'auto' and 'border-left-width' + 'padding-left' + 'width' + 'padding-right' + 'border-right-width' (plus any of 'margin-left' or 'margin-right' that are not 'auto') is larger than the width of the containing block, then any 'auto' values for 'margin-left' or 'margin-right' are, for the following rules, treated as zero.
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if (width->to_length().is_auto() && total_px > containing_block()->rect().width()) {
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if (margin_left->to_length().is_auto())
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margin_left = zero_value;
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if (margin_right->to_length().is_auto())
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margin_right = zero_value;
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}
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}
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void LayoutBlock::compute_height()
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{
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}
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