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// Copyright 2017 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef XFA_FXFA_PARSER_CXFA_NODE_H_
#define XFA_FXFA_PARSER_CXFA_NODE_H_
#include <map>
#include <memory>
#include <utility>
#include <vector>
#include "core/fxcrt/fx_string.h"
#include "fxjs/cjx_node.h"
#include "third_party/base/optional.h"
#include "xfa/fxfa/parser/cxfa_object.h"
class CFX_XMLNode;
class CXFA_WidgetData;
#define XFA_NODEFILTER_Children 0x01
#define XFA_NODEFILTER_Properties 0x02
#define XFA_NODEFILTER_OneOfProperty 0x04
enum XFA_NodeFlag {
XFA_NodeFlag_None = 0,
XFA_NodeFlag_Initialized = 1 << 0,
XFA_NodeFlag_HasRemovedChildren = 1 << 1,
XFA_NodeFlag_NeedsInitApp = 1 << 2,
XFA_NodeFlag_BindFormItems = 1 << 3,
XFA_NodeFlag_UserInteractive = 1 << 4,
XFA_NodeFlag_SkipDataBinding = 1 << 5,
XFA_NodeFlag_OwnXMLNode = 1 << 6,
XFA_NodeFlag_UnusedNode = 1 << 7,
XFA_NodeFlag_LayoutGeneratedNode = 1 << 8
};
enum XFA_NODEITEM {
XFA_NODEITEM_Parent,
XFA_NODEITEM_FirstChild,
XFA_NODEITEM_NextSibling,
XFA_NODEITEM_PrevSibling,
};
class CXFA_Node : public CXFA_Object {
public:
struct PropertyData {
XFA_Element property;
uint8_t occurance_count;
uint8_t flags;
};
struct AttributeData {
XFA_Attribute attribute;
XFA_AttributeType type;
void* default_value;
};
#ifndef NDEBUG
static WideString ElementToName(XFA_Element elem);
#endif // NDEBUG
static WideString AttributeEnumToName(XFA_ATTRIBUTEENUM item);
static pdfium::Optional<XFA_ATTRIBUTEENUM> NameToAttributeEnum(
const WideStringView& name);
static XFA_Attribute NameToAttribute(const WideStringView& name);
static WideString AttributeToName(XFA_Attribute attr);
static XFA_Element NameToElement(const WideString& name);
static std::unique_ptr<CXFA_Node> Create(CXFA_Document* doc,
XFA_Element element,
XFA_XDPPACKET packet);
~CXFA_Node() override;
bool IsValidInPacket(XFA_XDPPACKET packet) const;
bool HasProperty(XFA_Element property) const;
bool HasPropertyFlags(XFA_Element property, uint8_t flags) const;
uint8_t PropertyOccuranceCount(XFA_Element property) const;
bool HasAttribute(XFA_Attribute attr) const;
XFA_Attribute GetAttribute(size_t i) const;
XFA_AttributeType GetAttributeType(XFA_Attribute type) const;
XFA_XDPPACKET GetPacketID() const { return m_ePacket; }
void SetFlag(uint32_t dwFlag, bool bNotify);
void ClearFlag(uint32_t dwFlag);
CJX_Node* JSNode() { return static_cast<CJX_Node*>(JSObject()); }
const CJX_Node* JSNode() const {
return static_cast<const CJX_Node*>(JSObject());
}
CXFA_Node* GetParent() { return m_pParent; }
CXFA_Node* GetChildNode() { return m_pChild; }
CXFA_Node* CreateInstance(bool bDataMerge);
int32_t GetCount();
CXFA_Node* GetItem(int32_t iIndex);
void RemoveItem(CXFA_Node* pRemoveInstance, bool bRemoveDataBinding);
void InsertItem(CXFA_Node* pNewInstance,
int32_t iPos,
int32_t iCount,
bool bMoveDataBindingNodes);
bool IsInitialized() const { return HasFlag(XFA_NodeFlag_Initialized); }
bool IsOwnXMLNode() const { return HasFlag(XFA_NodeFlag_OwnXMLNode); }
bool IsUserInteractive() const {
return HasFlag(XFA_NodeFlag_UserInteractive);
}
bool IsUnusedNode() const { return HasFlag(XFA_NodeFlag_UnusedNode); }
bool IsLayoutGeneratedNode() const {
return HasFlag(XFA_NodeFlag_LayoutGeneratedNode);
}
void ReleaseBindingNodes();
bool BindsFormItems() const { return HasFlag(XFA_NodeFlag_BindFormItems); }
bool HasRemovedChildren() const {
return HasFlag(XFA_NodeFlag_HasRemovedChildren);
}
bool NeedsInitApp() const { return HasFlag(XFA_NodeFlag_NeedsInitApp); }
bool IsAttributeInXML();
bool IsFormContainer() const {
return m_ePacket == XFA_XDPPACKET_Form && IsContainerNode();
}
void SetXMLMappingNode(CFX_XMLNode* pXMLNode) { m_pXMLNode = pXMLNode; }
CFX_XMLNode* GetXMLMappingNode() const { return m_pXMLNode; }
CFX_XMLNode* CreateXMLMappingNode();
bool IsNeedSavingXMLNode();
uint32_t GetNameHash() const { return m_dwNameHash; }
bool IsUnnamed() const { return m_dwNameHash == 0; }
CXFA_Node* GetModelNode();
void UpdateNameHash();
int32_t CountChildren(XFA_Element eType, bool bOnlyChild);
CXFA_Node* GetChild(int32_t index, XFA_Element eType, bool bOnlyChild);
int32_t InsertChild(int32_t index, CXFA_Node* pNode);
bool InsertChild(CXFA_Node* pNode, CXFA_Node* pBeforeNode);
bool RemoveChild(CXFA_Node* pNode, bool bNotify);
CXFA_Node* Clone(bool bRecursive);
CXFA_Node* GetNodeItem(XFA_NODEITEM eItem) const;
CXFA_Node* GetNodeItem(XFA_NODEITEM eItem, XFA_ObjectType eType) const;
std::vector<CXFA_Node*> GetNodeList(uint32_t dwTypeFilter,
XFA_Element eTypeFilter);
CXFA_Node* CreateSamePacketNode(XFA_Element eType);
CXFA_Node* CloneTemplateToForm(bool bRecursive);
CXFA_Node* GetTemplateNode() const;
void SetTemplateNode(CXFA_Node* pTemplateNode);
CXFA_Node* GetDataDescriptionNode();
void SetDataDescriptionNode(CXFA_Node* pDataDescriptionNode);
CXFA_Node* GetBindData();
std::vector<UnownedPtr<CXFA_Node>>* GetBindItems();
int32_t AddBindItem(CXFA_Node* pFormNode);
int32_t RemoveBindItem(CXFA_Node* pFormNode);
bool HasBindItem();
CXFA_WidgetData* GetWidgetData();
CXFA_WidgetData* GetContainerWidgetData();
bool GetLocaleName(WideString& wsLocaleName);
XFA_ATTRIBUTEENUM GetIntact();
CXFA_Node* GetFirstChildByName(const WideStringView& wsNodeName) const;
CXFA_Node* GetFirstChildByName(uint32_t dwNodeNameHash) const;
CXFA_Node* GetFirstChildByClass(XFA_Element eType) const;
CXFA_Node* GetNextSameNameSibling(uint32_t dwNodeNameHash) const;
CXFA_Node* GetNextSameNameSibling(const WideStringView& wsNodeName) const;
CXFA_Node* GetNextSameClassSibling(XFA_Element eType) const;
int32_t GetNodeSameNameIndex() const;
int32_t GetNodeSameClassIndex() const;
void GetSOMExpression(WideString& wsSOMExpression);
CXFA_Node* GetInstanceMgrOfSubform();
CXFA_Node* GetOccurNode();
pdfium::Optional<bool> GetDefaultBoolean(XFA_Attribute attr) const;
pdfium::Optional<int32_t> GetDefaultInteger(XFA_Attribute attr) const;
pdfium::Optional<CXFA_Measurement> GetDefaultMeasurement(
XFA_Attribute attr) const;
pdfium::Optional<WideString> GetDefaultCData(XFA_Attribute attr) const;
pdfium::Optional<XFA_ATTRIBUTEENUM> GetDefaultEnum(XFA_Attribute attr) const;
protected:
CXFA_Node(CXFA_Document* pDoc,
XFA_XDPPACKET ePacket,
uint32_t validPackets,
XFA_ObjectType oType,
XFA_Element eType,
const PropertyData* properties,
const AttributeData* attributes,
const WideStringView& elementName);
private:
bool HasFlag(XFA_NodeFlag dwFlag) const;
CXFA_Node* Deprecated_GetPrevSibling();
const PropertyData* GetPropertyData(XFA_Element property) const;
const AttributeData* GetAttributeData(XFA_Attribute attr) const;
pdfium::Optional<XFA_Element> GetFirstPropertyWithFlag(uint8_t flag);
void OnRemoved(bool bNotify);
pdfium::Optional<void*> GetDefaultValue(XFA_Attribute attr,
XFA_AttributeType eType) const;
const PropertyData* const m_Properties;
const AttributeData* const m_Attributes;
const uint32_t m_ValidPackets;
CXFA_Node* m_pNext;
CXFA_Node* m_pChild;
CXFA_Node* m_pLastChild;
CXFA_Node* m_pParent;
CFX_XMLNode* m_pXMLNode;
const XFA_XDPPACKET m_ePacket;
uint16_t m_uNodeFlags;
uint32_t m_dwNameHash;
CXFA_Node* m_pAuxNode;
};
#endif // XFA_FXFA_PARSER_CXFA_NODE_H_
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