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path: root/xfa/src/fxjse/src/value.h
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// Copyright 2014 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 FXJSE_VALUE_H_
#define FXJSE_VALUE_H_
#include "scope_inline.h"
class CFXJSE_Value
{
public:
    CFXJSE_Value(v8::Isolate* pIsolate) : m_pIsolate(pIsolate) {}
protected:
    CFXJSE_Value();
    CFXJSE_Value(const CFXJSE_Value&);
    CFXJSE_Value& operator = (const CFXJSE_Value&);
public:
    V8_INLINE FX_BOOL IsUndefined()	const
    {
        if (m_hValue.IsEmpty()) {
            return FALSE;
        }
        CFXJSE_ScopeUtil_IsolateHandle scope(m_pIsolate);
        v8::Local<v8::Value> hValue = v8::Local<v8::Value>::New(m_pIsolate, m_hValue);
        return hValue->IsUndefined();
    }
    V8_INLINE FX_BOOL IsNull()		const
    {
        if (m_hValue.IsEmpty()) {
            return FALSE;
        }
        CFXJSE_ScopeUtil_IsolateHandle scope(m_pIsolate);
        v8::Local<v8::Value> hValue = v8::Local<v8::Value>::New(m_pIsolate, m_hValue);
        return hValue->IsNull();
    }
    V8_INLINE FX_BOOL IsBoolean()	const
    {
        if (m_hValue.IsEmpty()) {
            return FALSE;
        }
        CFXJSE_ScopeUtil_IsolateHandle scope(m_pIsolate);
        v8::Local<v8::Value> hValue = v8::Local<v8::Value>::New(m_pIsolate, m_hValue);
        return hValue->IsBoolean();
    }
    V8_INLINE FX_BOOL IsString()	const
    {
        if (m_hValue.IsEmpty()) {
            return FALSE;
        }
        CFXJSE_ScopeUtil_IsolateHandle scope(m_pIsolate);
        v8::Local<v8::Value> hValue = v8::Local<v8::Value>::New(m_pIsolate, m_hValue);
        return hValue->IsString();
    }
    V8_INLINE FX_BOOL IsNumber()	const
    {
        if (m_hValue.IsEmpty()) {
            return FALSE;
        }
        CFXJSE_ScopeUtil_IsolateHandle scope(m_pIsolate);
        v8::Local<v8::Value> hValue = v8::Local<v8::Value>::New(m_pIsolate, m_hValue);
        return hValue->IsNumber();
    }
    V8_INLINE FX_BOOL IsInteger()	const
    {
        if (m_hValue.IsEmpty()) {
            return FALSE;
        }
        CFXJSE_ScopeUtil_IsolateHandle scope(m_pIsolate);
        v8::Local<v8::Value> hValue = v8::Local<v8::Value>::New(m_pIsolate, m_hValue);
        return hValue->IsInt32();
    }
    V8_INLINE FX_BOOL IsObject()	const
    {
        if (m_hValue.IsEmpty()) {
            return FALSE;
        }
        CFXJSE_ScopeUtil_IsolateHandle scope(m_pIsolate);
        v8::Local<v8::Value> hValue = v8::Local<v8::Value>::New(m_pIsolate, m_hValue);
        return hValue->IsObject();
    }
    V8_INLINE FX_BOOL IsArray()		const
    {
        if (m_hValue.IsEmpty()) {
            return FALSE;
        }
        CFXJSE_ScopeUtil_IsolateHandle scope(m_pIsolate);
        v8::Local<v8::Value> hValue = v8::Local<v8::Value>::New(m_pIsolate, m_hValue);
        return hValue->IsArray();
    }
    V8_INLINE FX_BOOL IsFunction()	const
    {
        if (m_hValue.IsEmpty()) {
            return FALSE;
        }
        CFXJSE_ScopeUtil_IsolateHandle scope(m_pIsolate);
        v8::Local<v8::Value> hValue = v8::Local<v8::Value>::New(m_pIsolate, m_hValue);
        return hValue->IsFunction();
    }
    V8_INLINE FX_BOOL IsDate()		const
    {
        if (m_hValue.IsEmpty()) {
            return FALSE;
        }
        CFXJSE_ScopeUtil_IsolateHandle scope(m_pIsolate);
        v8::Local<v8::Value> hValue = v8::Local<v8::Value>::New(m_pIsolate, m_hValue);
        return hValue->IsDate();
    }
public:
    V8_INLINE FX_BOOL		ToBoolean() const
    {
        ASSERT(!m_hValue.IsEmpty());
        CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate);
        v8::Local<v8::Value> hValue = v8::Local<v8::Value>::New(m_pIsolate, m_hValue);
        return static_cast<FX_BOOL>(hValue->BooleanValue());
    }
    V8_INLINE FX_FLOAT		ToFloat()	const
    {
        ASSERT(!m_hValue.IsEmpty());
        CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate);
        v8::Local<v8::Value> hValue = v8::Local<v8::Value>::New(m_pIsolate, m_hValue);
        return static_cast<FX_FLOAT>(hValue->NumberValue());
    }
    V8_INLINE FXJSE_DOUBLE	ToDouble()	const
    {
        ASSERT(!m_hValue.IsEmpty());
        CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate);
        v8::Local<v8::Value> hValue = v8::Local<v8::Value>::New(m_pIsolate, m_hValue);
        return static_cast<FXJSE_DOUBLE>(hValue->NumberValue());
    }
    V8_INLINE int32_t		ToInteger()	const
    {
        ASSERT(!m_hValue.IsEmpty());
        CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate);
        v8::Local<v8::Value> hValue = v8::Local<v8::Value>::New(m_pIsolate, m_hValue);
        return static_cast<int32_t>(hValue->NumberValue());
    }
    V8_INLINE void			ToString(CFX_ByteString& szStrOutput) const
    {
        ASSERT(!m_hValue.IsEmpty());
        CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate);
        v8::Local<v8::Value> hValue = v8::Local<v8::Value>::New(m_pIsolate, m_hValue);
        v8::Local<v8::String> hString = hValue->ToString();
        v8::String::Utf8Value hStringVal(hString);
        szStrOutput = *hStringVal;
    }
    void*				ToObject(CFXJSE_Class*   lpClass) const;
public:
    V8_INLINE void SetUndefined()
    {
        CFXJSE_ScopeUtil_IsolateHandle scope(m_pIsolate);
        v8::Local<v8::Value> hValue = v8::Undefined(m_pIsolate);
        m_hValue.Reset(m_pIsolate, hValue);
    }
    V8_INLINE void SetNull()
    {
        CFXJSE_ScopeUtil_IsolateHandle scope(m_pIsolate);
        v8::Local<v8::Value> hValue = v8::Null(m_pIsolate);
        m_hValue.Reset(m_pIsolate, hValue);
    }
    V8_INLINE void SetBoolean(FX_BOOL bBoolean)
    {
        CFXJSE_ScopeUtil_IsolateHandle scope(m_pIsolate);
        v8::Local<v8::Value> hValue = v8::Boolean::New(m_pIsolate, bBoolean != FALSE);
        m_hValue.Reset(m_pIsolate, hValue);
    }
    V8_INLINE void SetInteger(int32_t nInteger)
    {
        CFXJSE_ScopeUtil_IsolateHandle scope(m_pIsolate);
        v8::Local<v8::Value> hValue = v8::Integer::New(m_pIsolate, nInteger);
        m_hValue.Reset(m_pIsolate, hValue);
    }
    V8_INLINE void SetDouble(FXJSE_DOUBLE dDouble)
    {
        CFXJSE_ScopeUtil_IsolateHandle scope(m_pIsolate);
        v8::Local<v8::Value> hValue = v8::Number::New(m_pIsolate, dDouble);
        m_hValue.Reset(m_pIsolate, hValue);
    }
    V8_INLINE void SetString(FX_BSTR szString)
    {
        CFXJSE_ScopeUtil_IsolateHandle scope(m_pIsolate);
        v8::Local<v8::Value> hValue = v8::String::NewFromUtf8(m_pIsolate,
                                      reinterpret_cast<const char*>(szString.GetPtr()),
                                      v8::String::kNormalString, szString.GetLength());
        m_hValue.Reset(m_pIsolate, hValue);
    }
    V8_INLINE void SetFloat(FX_FLOAT fFloat);
    V8_INLINE void SetJSObject()
    {
        CFXJSE_ScopeUtil_IsolateHandleRootContext scope(m_pIsolate);
        v8::Local<v8::Value> hValue = v8::Object::New(m_pIsolate);
        m_hValue.Reset(m_pIsolate, hValue);
    }
    void SetHostObject(void* lpObject, CFXJSE_Class* lpClass);
    void SetArray(uint32_t uValueCount, CFXJSE_Value** rgValues);
    void SetDate(FXJSE_DOUBLE dDouble);
public:
    FX_BOOL GetObjectProperty(FX_BSTR	szPropName,	CFXJSE_Value* lpPropValue);
    FX_BOOL SetObjectProperty(FX_BSTR	szPropName,	CFXJSE_Value* lpPropValue);
    FX_BOOL GetObjectProperty(uint32_t	uPropIdx,	CFXJSE_Value* lpPropValue);
    FX_BOOL SetObjectProperty(uint32_t	uPropIdx,	CFXJSE_Value* lpPropValue);
    FX_BOOL DeleteObjectProperty(FX_BSTR szPropName);
    FX_BOOL HasObjectOwnProperty(FX_BSTR   szPropName, FX_BOOL	bUseTypeGetter);
    FX_BOOL SetObjectOwnProperty(FX_BSTR   szPropName, CFXJSE_Value* lpPropValue);
    FX_BOOL	SetFunctionBind(CFXJSE_Value* lpOldFunction, CFXJSE_Value* lpNewThis);
    FX_BOOL Call(CFXJSE_Value* lpReceiver, CFXJSE_Value* lpRetValue, uint32_t nArgCount, FXJSE_HVALUE* lpArgs);
public:
    V8_INLINE v8::Isolate* GetIsolate()	const
    {
        return m_pIsolate;
    }
    V8_INLINE const v8::Global<v8::Value>& DirectGetValue() const
    {
        return m_hValue;
    }
    V8_INLINE void ForceSetValue(v8::Local<v8::Value> hValue)
    {
        m_hValue.Reset(m_pIsolate, hValue);
    }
    V8_INLINE void Assign(const CFXJSE_Value* lpValue)
    {
        if(lpValue) {
            m_hValue.Reset(m_pIsolate, lpValue->m_hValue);
        } else {
            m_hValue.Reset();
        }
    }
public:
    static CFXJSE_Value* Create(v8::Isolate* pIsolate);
protected:
    v8::Isolate*				m_pIsolate;
    v8::Global<v8::Value>	m_hValue;
    friend class CFXJSE_Context;
    friend class CFXJSE_Class;
};
#endif