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- #pragma once
- #include <AK/Badge.h>
- #include <AK/RetainPtr.h>
- #include <AK/Vector.h>
- enum class NodeType : unsigned {
- INVALID = 0,
- ELEMENT_NODE = 1,
- TEXT_NODE = 3,
- DOCUMENT_NODE = 9,
- };
- class LayoutNode;
- class ParentNode;
- class Node {
- public:
- virtual ~Node();
- void retain();
- void release();
- int retain_count() const { return m_retain_count; }
- ParentNode* parent_node() { return m_parent_node; }
- const ParentNode* parent_node() const { return m_parent_node; }
- void set_parent_node(Badge<ParentNode>, ParentNode* parent_node) { m_parent_node = parent_node; }
- NodeType type() const { return m_type; }
- bool is_element() const { return type() == NodeType::ELEMENT_NODE; }
- bool is_text() const { return type() == NodeType::TEXT_NODE; }
- bool is_document() const { return type() == NodeType::DOCUMENT_NODE; }
- bool is_parent_node() const { return is_element() || is_document(); }
- Node* next_sibling() { return m_next_sibling; }
- Node* previous_sibling() { return m_previous_sibling; }
- const Node* next_sibling() const { return m_next_sibling; }
- const Node* previous_sibling() const { return m_previous_sibling; }
- void set_next_sibling(Node* node) { m_next_sibling = node; }
- void set_previous_sibling(Node* node) { m_previous_sibling = node; }
- virtual RetainPtr<LayoutNode> create_layout_node();
- const LayoutNode* layout_node() const { return m_layout_node; }
- LayoutNode* layout_node() { return m_layout_node; }
- void set_layout_node(Retained<LayoutNode>);
- protected:
- explicit Node(NodeType);
- int m_retain_count { 1 };
- NodeType m_type { NodeType::INVALID };
- ParentNode* m_parent_node { nullptr };
- Node* m_next_sibling { nullptr };
- Node* m_previous_sibling { nullptr };
- RetainPtr<LayoutNode> m_layout_node;
- };
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