b477aff843
HtmlView now calls Node::enclosing_link_element() to find the nearest ancestor <a> element. This patch also adds HTMLElement and HTMLAnchorElement.
83 lines
2.9 KiB
C++
83 lines
2.9 KiB
C++
#include <LibHTML/DOM/Node.h>
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#include <LibHTML/DOM/Element.h>
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#include <LibHTML/DOM/HTMLAnchorElement.h>
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#include <LibHTML/CSS/StyleResolver.h>
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#include <LibHTML/Layout/LayoutNode.h>
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#include <LibHTML/Layout/LayoutBlock.h>
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#include <LibHTML/Layout/LayoutDocument.h>
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#include <LibHTML/Layout/LayoutInline.h>
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#include <LibHTML/Layout/LayoutText.h>
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Node::Node(Document& document, NodeType type)
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: m_document(document)
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, m_type(type)
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{
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}
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Node::~Node()
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{
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}
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RefPtr<LayoutNode> Node::create_layout_node(const StyleResolver& resolver, const StyleProperties* parent_properties) const
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{
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if (is_document())
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return adopt(*new LayoutDocument(static_cast<const Document&>(*this), {}));
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auto style_properties = resolver.resolve_style(static_cast<const Element&>(*this), parent_properties);
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auto display_property = style_properties.property("display");
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String display = display_property.has_value() ? display_property.release_value()->to_string() : "inline";
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if (is_text())
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return adopt(*new LayoutText(static_cast<const Text&>(*this), move(style_properties)));
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if (display == "none")
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return nullptr;
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if (display == "block" || display == "list-item")
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return adopt(*new LayoutBlock(this, move(style_properties)));
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if (display == "inline")
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return adopt(*new LayoutInline(*this, move(style_properties)));
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ASSERT_NOT_REACHED();
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}
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RefPtr<LayoutNode> Node::create_layout_tree(const StyleResolver& resolver, const StyleProperties* parent_properties) const
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{
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auto layout_node = create_layout_node(resolver, parent_properties);
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if (!layout_node)
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return nullptr;
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if (!has_children())
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return layout_node;
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Vector<RefPtr<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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static_cast<const ParentNode&>(*this).for_each_child([&](const Node& child) {
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auto layout_child = child.create_layout_tree(resolver, &layout_node->style_properties());
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if (!layout_child)
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return;
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if (!layout_child->is_block())
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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(move(layout_child));
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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 (layout_child->is_text() && static_cast<const LayoutText&>(*layout_child).text() == " ")
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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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const HTMLAnchorElement* Node::enclosing_link_element() const
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{
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if (is_element() && tag_name().to_lowercase() == "a")
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return static_cast<const HTMLAnchorElement*>(this);
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return parent() ? parent()->enclosing_link_element() : nullptr;
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}
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