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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 FXJS_XFA_CJX_OBJECT_H_
#define FXJS_XFA_CJX_OBJECT_H_
#include <map>
#include <memory>
#include <utility>
#include <vector>
#include "core/fxcrt/unowned_ptr.h"
#include "core/fxcrt/widestring.h"
#include "core/fxcrt/xml/cfx_xmlelement.h"
#include "fxjs/jse_define.h"
#include "third_party/base/optional.h"
#include "third_party/base/span.h"
#include "xfa/fxfa/fxfa_basic.h"
#include "xfa/fxfa/parser/cxfa_measurement.h"
class CFXJSE_Value;
class CFX_V8;
class CJX_Object;
class CXFA_CalcData;
class CXFA_Document;
class CXFA_LayoutItem;
class CXFA_Node;
class CXFA_Object;
struct XFA_MAPMODULEDATA;
typedef CJS_Return (*CJX_MethodCall)(
CJX_Object* obj,
CFX_V8* runtime,
const std::vector<v8::Local<v8::Value>>& params);
struct CJX_MethodSpec {
const char* pName;
CJX_MethodCall pMethodCall;
};
typedef void (*PD_CALLBACK_FREEDATA)(void* pData);
typedef void (*PD_CALLBACK_DUPLICATEDATA)(void*& pData);
struct XFA_MAPDATABLOCKCALLBACKINFO {
PD_CALLBACK_FREEDATA pFree;
PD_CALLBACK_DUPLICATEDATA pCopy;
};
enum XFA_SOM_MESSAGETYPE {
XFA_SOM_ValidationMessage,
XFA_SOM_FormatMessage,
XFA_SOM_MandatoryMessage
};
class CJX_Object {
public:
explicit CJX_Object(CXFA_Object* obj);
virtual ~CJX_Object();
JSE_PROP(className);
CXFA_Document* GetDocument() const;
CXFA_Object* GetXFAObject() const { return object_.Get(); }
void SetCalcRecursionCount(size_t count) { calc_recursion_count_ = count; }
size_t GetCalcRecursionCount() const { return calc_recursion_count_; }
void SetLayoutItem(CXFA_LayoutItem* item) { layout_item_ = item; }
CXFA_LayoutItem* GetLayoutItem() const { return layout_item_; }
bool HasMethod(const WideString& func) const;
CJS_Return RunMethod(const WideString& func,
const std::vector<v8::Local<v8::Value>>& params);
bool HasAttribute(XFA_Attribute eAttr);
void SetAttribute(XFA_Attribute eAttr,
const WideStringView& wsValue,
bool bNotify);
void SetAttribute(const WideStringView& wsAttr,
const WideStringView& wsValue,
bool bNotify);
void RemoveAttribute(const WideStringView& wsAttr);
WideString GetAttribute(const WideStringView& attr);
WideString GetAttribute(XFA_Attribute attr);
Optional<WideString> TryAttribute(const WideStringView& wsAttr,
bool bUseDefault);
Optional<WideString> TryAttribute(XFA_Attribute eAttr, bool bUseDefault);
Optional<WideString> TryContent(bool bScriptModify, bool bProto);
void SetContent(const WideString& wsContent,
const WideString& wsXMLValue,
bool bNotify,
bool bScriptModify,
bool bSyncData);
WideString GetContent(bool bScriptModify);
template <typename T>
T* GetProperty(int32_t index, XFA_Element eType) const {
CXFA_Node* node;
int32_t count;
std::tie(node, count) = GetPropertyInternal(index, eType);
return static_cast<T*>(node);
}
template <typename T>
T* GetOrCreateProperty(int32_t index, XFA_Element eType) {
return static_cast<T*>(GetOrCreatePropertyInternal(index, eType));
}
void SetAttributeValue(const WideString& wsValue,
const WideString& wsXMLValue,
bool bNotify,
bool bScriptModify);
void Script_Attribute_String(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute);
void Script_Attribute_BOOL(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute);
void Script_Attribute_Integer(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute);
void Script_Som_FontColor(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute);
void Script_Som_FillColor(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute);
void Script_Som_BorderColor(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute);
void Script_Som_BorderWidth(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute);
void Script_Som_ValidationMessage(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute);
void Script_Som_MandatoryMessage(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute);
void Script_Field_Length(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute);
void Script_Som_DefaultValue(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute);
void Script_Som_DefaultValue_Read(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute);
void Script_Som_DataNode(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute);
void Script_Som_Mandatory(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute);
void Script_Som_InstanceIndex(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute);
void Script_Som_Message(CFXJSE_Value* pValue,
bool bSetting,
XFA_SOM_MESSAGETYPE iMessageType);
void Script_Subform_InstanceManager(CFXJSE_Value* pValue,
bool bSetting,
XFA_AttributeEnum eAttribute);
void Script_SubmitFormat_Mode(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute);
void Script_Form_Checksum(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute);
void Script_ExclGroup_ErrorText(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute);
Optional<WideString> TryNamespace();
Optional<int32_t> TryInteger(XFA_Attribute eAttr, bool bUseDefault);
void SetInteger(XFA_Attribute eAttr, int32_t iValue, bool bNotify);
int32_t GetInteger(XFA_Attribute eAttr);
Optional<WideString> TryCData(XFA_Attribute eAttr, bool bUseDefault);
void SetCData(XFA_Attribute eAttr,
const WideString& wsValue,
bool bNotify,
bool bScriptModify);
WideString GetCData(XFA_Attribute eAttr);
Optional<XFA_AttributeEnum> TryEnum(XFA_Attribute eAttr,
bool bUseDefault) const;
void SetEnum(XFA_Attribute eAttr, XFA_AttributeEnum eValue, bool bNotify);
XFA_AttributeEnum GetEnum(XFA_Attribute eAttr) const;
Optional<bool> TryBoolean(XFA_Attribute eAttr, bool bUseDefault);
void SetBoolean(XFA_Attribute eAttr, bool bValue, bool bNotify);
bool GetBoolean(XFA_Attribute eAttr);
Optional<CXFA_Measurement> TryMeasure(XFA_Attribute eAttr,
bool bUseDefault) const;
Optional<float> TryMeasureAsFloat(XFA_Attribute attr) const;
void SetMeasure(XFA_Attribute eAttr, CXFA_Measurement mValue, bool bNotify);
CXFA_Measurement GetMeasure(XFA_Attribute eAttr) const;
void MergeAllData(CXFA_Object* pDstModule);
void SetCalcData(std::unique_ptr<CXFA_CalcData> data);
CXFA_CalcData* GetCalcData() const { return calc_data_.get(); }
std::unique_ptr<CXFA_CalcData> ReleaseCalcData();
int32_t InstanceManager_SetInstances(int32_t iDesired);
int32_t InstanceManager_MoveInstance(int32_t iTo, int32_t iFrom);
void ThrowInvalidPropertyException() const;
void ThrowArgumentMismatchException() const;
void ThrowIndexOutOfBoundsException() const;
void ThrowParamCountMismatchException(const WideString& method) const;
void ThrowTooManyOccurancesException(const WideString& obj) const;
protected:
void DefineMethods(pdfium::span<const CJX_MethodSpec> methods);
void MoveBufferMapData(CXFA_Object* pSrcModule, CXFA_Object* pDstModule);
void SetMapModuleString(void* pKey, const WideStringView& wsValue);
void ThrowException(const wchar_t* str, ...) const;
private:
void Script_Boolean_DefaultValue(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute);
void Script_Draw_DefaultValue(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute);
void Script_Field_DefaultValue(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute);
std::pair<CXFA_Node*, int32_t> GetPropertyInternal(int32_t index,
XFA_Element eType) const;
CXFA_Node* GetOrCreatePropertyInternal(int32_t index, XFA_Element eType);
void OnChanged(XFA_Attribute eAttr, bool bNotify, bool bScriptModify);
void OnChanging(XFA_Attribute eAttr, bool bNotify);
void SetUserData(void* pKey,
void* pData,
const XFA_MAPDATABLOCKCALLBACKINFO* pCallbackInfo);
// Returns a pointer to the XML node that needs to be updated with the new
// attribute value. |nullptr| if no update is needed.
CFX_XMLElement* SetValue(XFA_Attribute eAttr,
XFA_AttributeType eType,
void* pValue,
bool bNotify);
int32_t Subform_and_SubformSet_InstanceIndex();
XFA_MAPMODULEDATA* CreateMapModuleData();
XFA_MAPMODULEDATA* GetMapModuleData() const;
void SetMapModuleValue(void* pKey, void* pValue);
bool GetMapModuleValue(void* pKey, void*& pValue) const;
bool GetMapModuleString(void* pKey, WideStringView& wsValue);
void SetMapModuleBuffer(void* pKey,
void* pValue,
int32_t iBytes,
const XFA_MAPDATABLOCKCALLBACKINFO* pCallbackInfo);
bool GetMapModuleBuffer(void* pKey,
void*& pValue,
int32_t& iBytes,
bool bProtoAlso) const;
bool HasMapModuleKey(void* pKey);
void ClearMapModuleBuffer();
void RemoveMapModuleKey(void* pKey);
void MoveBufferMapData(CXFA_Object* pDstModule);
UnownedPtr<CXFA_Object> object_;
// This is an UnownedPtr but, due to lifetime issues, can't be marked as such
// at this point. The CJX_Node is freed by its parent CXFA_Node. The CXFA_Node
// will be freed during CXFA_NodeHolder destruction (CXFA_Document
// destruction as the only implementation). This will happen after the
// CXFA_LayoutProcessor is destroyed in the CXFA_Document, leaving this as a
// bad unowned ptr.
CXFA_LayoutItem* layout_item_ = nullptr;
std::unique_ptr<XFA_MAPMODULEDATA> map_module_data_;
std::unique_ptr<CXFA_CalcData> calc_data_;
std::map<ByteString, CJX_MethodCall> method_specs_;
size_t calc_recursion_count_ = 0;
};
typedef void (CJX_Object::*XFA_ATTRIBUTE_CALLBACK)(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute);
struct XFA_SCRIPTATTRIBUTEINFO {
uint32_t uHash;
const wchar_t* pName;
XFA_ATTRIBUTE_CALLBACK callback;
XFA_Attribute attribute;
XFA_ScriptType eValueType;
};
#endif // FXJS_XFA_CJX_OBJECT_H_
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