f7cd5662ef
Building a whole layout tree shouldn't be a concern of Node, so this patch moves it to a separate class.
51 lines
1.7 KiB
C++
51 lines
1.7 KiB
C++
#include <LibHTML/DOM/Document.h>
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#include <LibHTML/DOM/ParentNode.h>
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#include <LibHTML/Layout/LayoutNode.h>
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#include <LibHTML/Layout/LayoutText.h>
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#include <LibHTML/Layout/LayoutTreeBuilder.h>
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LayoutTreeBuilder::LayoutTreeBuilder()
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{
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}
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static RefPtr<LayoutNode> create_layout_tree(Node& node, const StyleProperties* parent_style)
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{
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auto layout_node = node.create_layout_node(node.document().style_resolver(), parent_style);
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if (!layout_node)
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return nullptr;
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if (!node.has_children())
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return layout_node;
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NonnullRefPtrVector<LayoutNode> layout_children;
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bool have_inline_children = false;
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bool have_block_children = false;
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to<ParentNode>(node).for_each_child([&](Node& child) {
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auto layout_child = create_layout_tree(child, &layout_node->style());
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if (!layout_child)
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return;
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if (layout_child->is_inline())
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have_inline_children = true;
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if (layout_child->is_block())
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have_block_children = true;
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layout_children.append(layout_child.release_nonnull());
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});
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for (auto& layout_child : layout_children)
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if (have_block_children && have_inline_children && !layout_child.is_block()) {
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if (is<LayoutText>(layout_child) && to<LayoutText>(layout_child).text_for_style(*parent_style) == " ")
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continue;
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layout_node->inline_wrapper().append_child(layout_child);
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} else {
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layout_node->append_child(layout_child);
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}
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return layout_node;
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}
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RefPtr<LayoutNode> LayoutTreeBuilder::build(Node& node)
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{
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// FIXME: Support building partial trees.
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ASSERT(is<Document>(node));
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return create_layout_tree(node, nullptr);
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}
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