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