LibHTML: Move layout tree building to Node

This also fixes another bug with inline wrappers. Namely,
we should only add inline wrappers if a block node has
both non-block (inline or text) and block children.
This commit is contained in:
Sergey Bugaev 2019-09-25 12:17:29 +03:00 committed by Andreas Kling
parent 841ae44392
commit 599edba7a3
Notes: sideshowbarker 2024-07-19 11:56:25 +09:00
3 changed files with 70 additions and 43 deletions

View file

@ -22,54 +22,12 @@ void Frame::set_document(Document* document)
m_document = document;
}
RefPtr<LayoutNode> Frame::generate_layout_tree()
{
auto resolver = m_document->style_resolver();
auto create_layout_node = [&](const Node& node) -> RefPtr<LayoutNode> {
if (node.is_document())
return adopt(*new LayoutDocument(static_cast<const Document&>(node), {}));
auto style_properties = resolver.resolve_style(static_cast<const Element&>(node));
auto display_property = style_properties.property("display");
String display = display_property.has_value() ? display_property.release_value()->to_string() : "inline";
if (display == "none")
return nullptr;
if (display == "block")
return adopt(*new LayoutBlock(&node, move(style_properties)));
if (display == "inline")
return adopt(*new LayoutInline(node, move(style_properties)));
ASSERT_NOT_REACHED();
};
Function<RefPtr<LayoutNode>(const Node&)> build_layout_tree;
build_layout_tree = [&](const Node& node) -> RefPtr<LayoutNode> {
auto layout_node = create_layout_node(node);
if (!layout_node)
return nullptr;
if (!node.has_children())
return layout_node;
static_cast<const ParentNode&>(node).for_each_child([&](const Node& child) {
auto layout_child = build_layout_tree(child);
if (!layout_child)
return;
if (layout_child->is_inline())
layout_node->inline_wrapper().append_child(*layout_child);
else
layout_node->append_child(*layout_child);
});
return layout_node;
};
return build_layout_tree(*m_document);
}
void Frame::layout()
{
if (!m_document)
return;
auto layout_root = generate_layout_tree();
auto layout_root = m_document->create_layout_tree(m_document->style_resolver(), nullptr);
layout_root->style().size().set_width(m_size.width());