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506 lines
18 KiB
506 lines
18 KiB
// Copyright 2017 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef XFA_FXFA_PARSER_CXFA_NODE_H_
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#define XFA_FXFA_PARSER_CXFA_NODE_H_
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#include <memory>
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#include <utility>
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#include <vector>
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#include "core/fxcrt/fx_string.h"
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#include "core/fxcrt/tree_node.h"
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#include "core/fxge/fx_dib.h"
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#include "third_party/base/optional.h"
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#include "third_party/base/span.h"
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#include "xfa/fxfa/cxfa_ffwidget_type.h"
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#include "xfa/fxfa/fxfa.h"
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#include "xfa/fxfa/parser/cxfa_object.h"
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class CFGAS_GEFont;
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class CFX_DIBitmap;
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class CFX_XMLDocument;
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class CFX_XMLNode;
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class CXFA_Bind;
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class CXFA_Border;
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class CXFA_Calculate;
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class CXFA_Caption;
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class CXFA_Event;
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class CXFA_EventParam;
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class CXFA_FFDoc;
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class CXFA_FFDocView;
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class CXFA_Font;
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class CXFA_Keep;
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class CXFA_Margin;
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class CXFA_Occur;
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class CXFA_Para;
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class CXFA_Script;
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class CXFA_TextLayout;
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class CXFA_Ui;
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class CXFA_Validate;
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class CXFA_Value;
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class CXFA_WidgetLayoutData;
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class LocaleIface;
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#define XFA_NODEFILTER_Children 0x01
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#define XFA_NODEFILTER_Properties 0x02
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#define XFA_NODEFILTER_OneOfProperty 0x04
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enum XFA_CHECKSTATE {
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XFA_CHECKSTATE_On = 0,
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XFA_CHECKSTATE_Off = 1,
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XFA_CHECKSTATE_Neutral = 2,
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};
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enum XFA_VALUEPICTURE {
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XFA_VALUEPICTURE_Raw = 0,
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XFA_VALUEPICTURE_Display,
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XFA_VALUEPICTURE_Edit,
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XFA_VALUEPICTURE_DataBind,
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};
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enum XFA_NodeFlag {
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XFA_NodeFlag_None = 0,
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XFA_NodeFlag_Initialized = 1 << 0,
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XFA_NodeFlag_HasRemovedChildren = 1 << 1,
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XFA_NodeFlag_NeedsInitApp = 1 << 2,
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XFA_NodeFlag_BindFormItems = 1 << 3,
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XFA_NodeFlag_UserInteractive = 1 << 4,
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XFA_NodeFlag_UnusedNode = 1 << 5,
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XFA_NodeFlag_LayoutGeneratedNode = 1 << 6
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};
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class CXFA_Node : public CXFA_Object, public TreeNode<CXFA_Node> {
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public:
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struct PropertyData {
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XFA_Element property;
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uint8_t occurance_count;
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uint8_t flags;
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};
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struct AttributeData {
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XFA_Attribute attribute;
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XFA_AttributeType type;
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void* default_value;
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};
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static std::unique_ptr<CXFA_Node> Create(CXFA_Document* doc,
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XFA_Element element,
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XFA_PacketType packet);
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~CXFA_Node() override;
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bool HasProperty(XFA_Element property) const;
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bool HasPropertyFlags(XFA_Element property, uint8_t flags) const;
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uint8_t PropertyOccuranceCount(XFA_Element property) const;
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std::pair<CXFA_Node*, int32_t> GetProperty(int32_t index,
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XFA_Element eProperty) const;
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CXFA_Node* GetOrCreateProperty(int32_t index, XFA_Element eProperty);
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void SendAttributeChangeMessage(XFA_Attribute eAttribute, bool bScriptModify);
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bool HasAttribute(XFA_Attribute attr) const;
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XFA_AttributeType GetAttributeType(XFA_Attribute type) const;
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// Note: returns XFA_Attribute::Unknown for invalid indicies.
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XFA_Attribute GetAttribute(size_t i) const;
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XFA_PacketType GetPacketType() const { return m_ePacket; }
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void SetFlag(uint32_t dwFlag);
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void SetFlagAndNotify(uint32_t dwFlag);
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void ClearFlag(uint32_t dwFlag);
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CXFA_Node* CreateInstanceIfPossible(bool bDataMerge);
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int32_t GetCount();
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CXFA_Node* GetItemIfExists(int32_t iIndex);
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void RemoveItem(CXFA_Node* pRemoveInstance, bool bRemoveDataBinding);
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void InsertItem(CXFA_Node* pNewInstance,
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int32_t iPos,
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int32_t iCount,
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bool bMoveDataBindingNodes);
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bool IsInitialized() const { return HasFlag(XFA_NodeFlag_Initialized); }
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bool IsUserInteractive() const {
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return HasFlag(XFA_NodeFlag_UserInteractive);
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}
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bool IsUnusedNode() const { return HasFlag(XFA_NodeFlag_UnusedNode); }
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bool IsLayoutGeneratedNode() const {
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return HasFlag(XFA_NodeFlag_LayoutGeneratedNode);
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}
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bool PresenceRequiresSpace() const;
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void SetBindingNode(CXFA_Node* node);
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void SetNodeAndDescendantsUnused();
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bool HasRemovedChildren() const {
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return HasFlag(XFA_NodeFlag_HasRemovedChildren);
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}
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bool IsAttributeInXML();
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bool IsFormContainer() const {
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return m_ePacket == XFA_PacketType::Form && IsContainerNode();
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}
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void SetXMLMappingNode(CFX_XMLNode* node) { xml_node_ = node; }
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CFX_XMLNode* GetXMLMappingNode() const { return xml_node_.Get(); }
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CFX_XMLNode* CreateXMLMappingNode();
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bool IsNeedSavingXMLNode() const;
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void SetToXML(const WideString& value);
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uint32_t GetNameHash() const { return m_dwNameHash; }
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bool IsUnnamed() const { return m_dwNameHash == 0; }
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CXFA_Node* GetModelNode();
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void UpdateNameHash();
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size_t CountChildren(XFA_Element eType, bool bOnlyChild);
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template <typename T>
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T* GetChild(size_t index, XFA_Element eType, bool bOnlyChild) {
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return static_cast<T*>(GetChildInternal(index, eType, bOnlyChild));
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}
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void InsertChildAndNotify(int32_t index, CXFA_Node* pNode);
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void InsertChildAndNotify(CXFA_Node* pNode, CXFA_Node* pBeforeNode);
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void RemoveChildAndNotify(CXFA_Node* pNode, bool bNotify);
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CXFA_Node* Clone(bool bRecursive);
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CXFA_Node* GetNextContainerSibling() const;
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CXFA_Node* GetPrevContainerSibling() const;
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CXFA_Node* GetFirstContainerChild() const;
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CXFA_Node* GetContainerParent() const;
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std::vector<CXFA_Node*> GetNodeListForType(XFA_Element eTypeFilter);
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std::vector<CXFA_Node*> GetNodeListWithFilter(uint32_t dwTypeFilter);
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CXFA_Node* CreateSamePacketNode(XFA_Element eType);
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CXFA_Node* CloneTemplateToForm(bool bRecursive);
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CXFA_Node* GetTemplateNodeIfExists() const;
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void SetTemplateNode(CXFA_Node* pTemplateNode);
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CXFA_Node* GetDataDescriptionNode();
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void SetDataDescriptionNode(CXFA_Node* pDataDescriptionNode);
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CXFA_Node* GetBindData();
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bool HasBindItems() const { return !binding_nodes_.empty(); }
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std::vector<CXFA_Node*> GetBindItemsCopy() { return binding_nodes_; }
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int32_t AddBindItem(CXFA_Node* pFormNode);
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int32_t RemoveBindItem(CXFA_Node* pFormNode);
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bool HasBindItem() const;
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CXFA_Node* GetContainerNode();
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LocaleIface* GetLocale();
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Optional<WideString> GetLocaleName();
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XFA_AttributeValue GetIntact();
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WideString GetNameExpression();
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CXFA_Node* GetFirstChildByName(WideStringView wsNodeName) const;
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CXFA_Node* GetFirstChildByName(uint32_t dwNodeNameHash) const;
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template <typename T>
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T* GetFirstChildByClass(XFA_Element eType) const {
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return static_cast<T*>(GetFirstChildByClassInternal(eType));
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}
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CXFA_Node* GetNextSameNameSibling(uint32_t dwNodeNameHash) const;
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template <typename T>
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T* GetNextSameNameSibling(WideStringView wsNodeName) const {
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return static_cast<T*>(GetNextSameNameSiblingInternal(wsNodeName));
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}
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template <typename T>
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T* GetNextSameClassSibling(XFA_Element eType) const {
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return static_cast<T*>(GetNextSameClassSiblingInternal(eType));
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}
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CXFA_Node* GetOneChildNamed(WideStringView wsName);
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CXFA_Node* GetOneChildOfClass(WideStringView wsClass);
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std::vector<CXFA_Node*> GetSiblings(bool bIsClassName);
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size_t GetIndex(bool bIsProperty, bool bIsClassIndex);
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size_t GetIndexByName();
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size_t GetIndexByClassName();
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CXFA_Node* GetInstanceMgrOfSubform();
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Optional<bool> GetDefaultBoolean(XFA_Attribute attr) const;
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Optional<int32_t> GetDefaultInteger(XFA_Attribute attr) const;
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Optional<CXFA_Measurement> GetDefaultMeasurement(XFA_Attribute attr) const;
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Optional<WideString> GetDefaultCData(XFA_Attribute attr) const;
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Optional<XFA_AttributeValue> GetDefaultEnum(XFA_Attribute attr) const;
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bool IsOpenAccess() const;
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CXFA_Occur* GetOccurIfExists();
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CXFA_Border* GetBorderIfExists() const;
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CXFA_Border* GetOrCreateBorderIfPossible();
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CXFA_Caption* GetCaptionIfExists() const;
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CXFA_Font* GetFontIfExists() const;
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CXFA_Font* GetOrCreateFontIfPossible();
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float GetFontSize() const;
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FX_ARGB GetTextColor() const;
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float GetLineHeight() const;
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CXFA_Margin* GetMarginIfExists() const;
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CXFA_Para* GetParaIfExists() const;
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CXFA_Calculate* GetCalculateIfExists() const;
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CXFA_Validate* GetValidateIfExists() const;
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CXFA_Validate* GetOrCreateValidateIfPossible();
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CXFA_Value* GetFormValueIfExists() const;
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WideString GetRawValue();
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int32_t GetRotate() const;
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Optional<float> TryWidth();
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CXFA_Node* GetExclGroupIfExists();
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XFA_EventError ProcessEvent(CXFA_FFDocView* pDocView,
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XFA_AttributeValue iActivity,
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CXFA_EventParam* pEventParam);
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XFA_EventError ProcessCalculate(CXFA_FFDocView* pDocView);
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XFA_EventError ProcessValidate(CXFA_FFDocView* pDocView, int32_t iFlags);
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XFA_EventError ExecuteScript(CXFA_FFDocView* pDocView,
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CXFA_Script* script,
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CXFA_EventParam* pEventParam);
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std::pair<XFA_EventError, bool> ExecuteBoolScript(
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CXFA_FFDocView* pDocView,
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CXFA_Script* script,
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CXFA_EventParam* pEventParam);
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CXFA_Node* GetUIChildNode();
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// NOTE: value returned is often determined by child UI node, and
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// can't be used to infer anything about this particual node itself.
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XFA_FFWidgetType GetFFWidgetType();
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CFX_RectF GetUIMargin();
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CXFA_Border* GetUIBorder();
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void SetPreNull(bool val) { m_bPreNull = val; }
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bool IsNull() const { return m_bIsNull; }
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void SetIsNull(bool val) { m_bIsNull = val; }
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void SetWidgetReady() { is_widget_ready_ = true; }
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bool IsWidgetReady() const { return is_widget_ready_; }
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std::vector<CXFA_Event*> GetEventByActivity(XFA_AttributeValue iActivity,
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bool bIsFormReady);
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void ResetData();
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void StartWidgetLayout(CXFA_FFDoc* doc,
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float* pCalcWidth,
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float* pCalcHeight);
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Optional<float> FindSplitPos(CXFA_FFDocView* pDocView,
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size_t szBlockIndex,
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float fCalcHeight);
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bool LoadCaption(CXFA_FFDoc* doc);
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CXFA_TextLayout* GetCaptionTextLayout();
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CXFA_TextLayout* GetTextLayout();
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bool LoadImageImage(CXFA_FFDoc* doc);
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bool LoadImageEditImage(CXFA_FFDoc* doc);
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CFX_Size GetImageDpi() const;
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CFX_Size GetImageEditDpi() const;
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RetainPtr<CFX_DIBitmap> GetImageImage();
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RetainPtr<CFX_DIBitmap> GetImageEditImage();
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void SetImageImage(const RetainPtr<CFX_DIBitmap>& newImage);
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void SetImageEditImage(const RetainPtr<CFX_DIBitmap>& newImage);
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RetainPtr<CFGAS_GEFont> GetFDEFont(CXFA_FFDoc* doc);
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bool IsListBox();
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bool IsRadioButton();
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bool IsMultiLine();
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bool HasButtonRollover();
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bool HasButtonDown();
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float GetCheckButtonSize();
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XFA_CHECKSTATE GetCheckState();
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void SetCheckState(XFA_CHECKSTATE eCheckState, bool bNotify);
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CXFA_Node* GetSelectedMember();
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CXFA_Node* SetSelectedMember(WideStringView wsName, bool bNotify);
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void SetSelectedMemberByValue(WideStringView wsValue,
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bool bNotify,
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bool bScriptModify,
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bool bSyncData);
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CXFA_Node* GetExclGroupFirstMember();
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CXFA_Node* GetExclGroupNextMember(CXFA_Node* pNode);
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bool IsChoiceListAllowTextEntry();
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int32_t CountChoiceListItems(bool bSaveValue);
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Optional<WideString> GetChoiceListItem(int32_t nIndex, bool bSaveValue);
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bool IsChoiceListMultiSelect();
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bool IsChoiceListCommitOnSelect();
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std::vector<WideString> GetChoiceListItems(bool bSaveValue);
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int32_t CountSelectedItems();
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int32_t GetSelectedItem(int32_t nIndex);
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std::vector<int32_t> GetSelectedItems();
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std::vector<WideString> GetSelectedItemsValue();
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void SetSelectedItems(const std::vector<int32_t>& iSelArray,
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bool bNotify,
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bool bScriptModify,
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bool bSyncData);
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void InsertItem(const WideString& wsLabel,
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const WideString& wsValue,
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bool bNotify);
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bool DeleteItem(int32_t nIndex, bool bNotify, bool bScriptModify);
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void ClearAllSelections();
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bool GetItemState(int32_t nIndex);
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void SetItemState(int32_t nIndex,
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bool bSelected,
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bool bNotify,
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bool bScriptModify,
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bool bSyncData);
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WideString GetItemValue(WideStringView wsLabel);
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bool IsHorizontalScrollPolicyOff();
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bool IsVerticalScrollPolicyOff();
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Optional<int32_t> GetNumberOfCells();
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bool SetValue(XFA_VALUEPICTURE eValueType, const WideString& wsValue);
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WideString GetValue(XFA_VALUEPICTURE eValueType);
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WideString GetPictureContent(XFA_VALUEPICTURE ePicture);
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WideString GetNormalizeDataValue(const WideString& wsValue);
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WideString GetFormatDataValue(const WideString& wsValue);
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WideString NormalizeNumStr(const WideString& wsValue);
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std::pair<XFA_Element, int32_t> GetMaxChars();
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int32_t GetFracDigits();
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int32_t GetLeadDigits();
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WideString NumericLimit(const WideString& wsValue);
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bool IsTransparent() const;
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bool IsProperty() const;
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protected:
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CXFA_Node(CXFA_Document* pDoc,
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XFA_PacketType ePacket,
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uint32_t validPackets,
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XFA_ObjectType oType,
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XFA_Element eType,
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pdfium::span<const PropertyData> properties,
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pdfium::span<const AttributeData> attributes,
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std::unique_ptr<CJX_Object> js_object);
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virtual XFA_Element GetValueNodeType() const;
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virtual XFA_FFWidgetType GetDefaultFFWidgetType() const;
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private:
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void ProcessScriptTestValidate(CXFA_FFDocView* pDocView,
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CXFA_Validate* validate,
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XFA_EventError iRet,
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bool pRetValue,
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bool bVersionFlag);
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XFA_EventError ProcessFormatTestValidate(CXFA_FFDocView* pDocView,
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CXFA_Validate* validate,
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bool bVersionFlag);
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XFA_EventError ProcessNullTestValidate(CXFA_FFDocView* pDocView,
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CXFA_Validate* validate,
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int32_t iFlags,
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bool bVersionFlag);
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WideString GetValidateCaptionName(bool bVersionFlag);
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WideString GetValidateMessage(bool bError, bool bVersionFlag);
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bool HasFlag(XFA_NodeFlag dwFlag) const;
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const PropertyData* GetPropertyData(XFA_Element property) const;
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const AttributeData* GetAttributeData(XFA_Attribute attr) const;
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Optional<XFA_Element> GetFirstPropertyWithFlag(uint8_t flag) const;
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void OnRemoved(bool bNotify) const;
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Optional<void*> GetDefaultValue(XFA_Attribute attr,
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XFA_AttributeType eType) const;
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CXFA_Node* GetChildInternal(size_t index,
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XFA_Element eType,
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bool bOnlyChild) const;
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CXFA_Node* GetFirstChildByClassInternal(XFA_Element eType) const;
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CXFA_Node* GetNextSameNameSiblingInternal(WideStringView wsNodeName) const;
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CXFA_Node* GetNextSameClassSiblingInternal(XFA_Element eType) const;
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void CalcCaptionSize(CXFA_FFDoc* doc, CFX_SizeF* pszCap);
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bool CalculateFieldAutoSize(CXFA_FFDoc* doc, CFX_SizeF* pSize);
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bool CalculateWidgetAutoSize(CFX_SizeF* pSize);
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bool CalculateTextEditAutoSize(CXFA_FFDoc* doc, CFX_SizeF* pSize);
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bool CalculateCheckButtonAutoSize(CXFA_FFDoc* doc, CFX_SizeF* pSize);
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bool CalculatePushButtonAutoSize(CXFA_FFDoc* doc, CFX_SizeF* pSize);
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CFX_SizeF CalculateImageSize(float img_width,
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float img_height,
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const CFX_Size& dpi);
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bool CalculateImageEditAutoSize(CXFA_FFDoc* doc, CFX_SizeF* pSize);
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bool CalculateImageAutoSize(CXFA_FFDoc* doc, CFX_SizeF* pSize);
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float CalculateWidgetAutoHeight(float fHeightCalc);
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float CalculateWidgetAutoWidth(float fWidthCalc);
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float GetWidthWithoutMargin(float fWidthCalc) const;
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float GetHeightWithoutMargin(float fHeightCalc) const;
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void CalculateTextContentSize(CXFA_FFDoc* doc, CFX_SizeF* pSize);
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CFX_SizeF CalculateAccWidthAndHeight(CXFA_FFDoc* doc, float fWidth);
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void InitLayoutData();
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void StartTextLayout(CXFA_FFDoc* doc, float* pCalcWidth, float* pCalcHeight);
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void InsertListTextItem(CXFA_Node* pItems,
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const WideString& wsText,
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int32_t nIndex);
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WideString GetItemLabel(WideStringView wsValue) const;
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std::pair<XFA_FFWidgetType, CXFA_Ui*> CreateChildUIAndValueNodesIfNeeded();
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void CreateValueNodeIfNeeded(CXFA_Value* value, CXFA_Node* pUIChild);
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CXFA_Node* CreateUINodeIfNeeded(CXFA_Ui* ui, XFA_Element type);
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bool IsValidInPacket(XFA_PacketType packet) const;
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void SetImageEdit(const WideString& wsContentType,
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const WideString& wsHref,
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const WideString& wsData);
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CXFA_Node* GetBindingNode() const {
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if (binding_nodes_.empty())
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return nullptr;
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return binding_nodes_[0];
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}
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bool BindsFormItems() const { return HasFlag(XFA_NodeFlag_BindFormItems); }
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bool NeedsInitApp() const { return HasFlag(XFA_NodeFlag_NeedsInitApp); }
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void SyncValue(const WideString& wsValue, bool bNotify);
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CXFA_Value* GetDefaultValueIfExists();
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CXFA_Bind* GetBindIfExists() const;
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Optional<XFA_AttributeValue> GetIntactFromKeep(
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const CXFA_Keep* pKeep,
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XFA_AttributeValue eLayoutType) const;
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CXFA_Node* GetTransparentParent();
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Optional<float> TryHeight();
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Optional<float> TryMinWidth();
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Optional<float> TryMinHeight();
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Optional<float> TryMaxWidth();
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Optional<float> TryMaxHeight();
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XFA_EventError ProcessEventInternal(CXFA_FFDocView* pDocView,
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XFA_AttributeValue iActivity,
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CXFA_Event* event,
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CXFA_EventParam* pEventParam);
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|
|
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CFX_XMLDocument* GetXMLDocument() const;
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|
|
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const pdfium::span<const PropertyData> m_Properties;
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|
const pdfium::span<const AttributeData> m_Attributes;
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const uint32_t m_ValidPackets;
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UnownedPtr<CFX_XMLNode> xml_node_;
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|
const XFA_PacketType m_ePacket;
|
|
uint8_t m_ExecuteRecursionDepth = 0;
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uint16_t m_uNodeFlags = XFA_NodeFlag_None;
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uint32_t m_dwNameHash = 0;
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CXFA_Node* m_pAuxNode = nullptr; // Raw, node tree cleanup order.
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std::vector<CXFA_Node*> binding_nodes_; // Raw, node tree cleanup order.
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bool m_bIsNull = true;
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bool m_bPreNull = true;
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bool is_widget_ready_ = false;
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std::unique_ptr<CXFA_WidgetLayoutData> m_pLayoutData;
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CXFA_Ui* ui_ = nullptr;
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XFA_FFWidgetType ff_widget_type_ = XFA_FFWidgetType::kNone;
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};
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#endif // XFA_FXFA_PARSER_CXFA_NODE_H_
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