#ifndef V8Binding_h
#define V8Binding_h
#include "BindingSecurity.h"
#include "MathExtras.h"
#include "PlatformString.h"
#include "V8DOMWrapper.h"
#include <wtf/text/AtomicString.h>
#include <v8.h>
namespace WebCore {
class DOMStringList;
class EventListener;
class EventTarget;
class V8Binding {
};
typedef BindingSecurity<V8Binding> V8BindingSecurity;
enum ExternalMode {
Externalize,
DoNotExternalize
};
template <typename StringType>
StringType v8StringToWebCoreString(v8::Handle<v8::String> v8String, ExternalMode external);
inline String v8StringToWebCoreString(v8::Handle<v8::String> v8String)
{
return v8StringToWebCoreString<String>(v8String, Externalize);
}
String v8NonStringValueToWebCoreString(v8::Handle<v8::Value>);
String v8ValueToWebCoreString(v8::Handle<v8::Value> value);
inline AtomicString v8StringToAtomicWebCoreString(v8::Handle<v8::String> v8String)
{
return v8StringToWebCoreString<AtomicString>(v8String, Externalize);
}
AtomicString v8NonStringValueToAtomicWebCoreString(v8::Handle<v8::Value>);
AtomicString v8ValueToAtomicWebCoreString(v8::Handle<v8::Value> value);
extern RefPtr<StringImpl> lastStringImpl;
extern v8::Persistent<v8::String> lastV8String;
v8::Local<v8::String> v8ExternalStringSlow(StringImpl* stringImpl);
inline v8::Local<v8::String> v8ExternalString(const String& string)
{
StringImpl* stringImpl = string.impl();
if (!stringImpl)
return v8::String::Empty();
if (lastStringImpl.get() == stringImpl) {
ASSERT(!lastV8String.IsNearDeath());
ASSERT(!lastV8String.IsEmpty());
return v8::Local<v8::String>::New(lastV8String);
}
return v8ExternalStringSlow(stringImpl);
}
inline v8::Handle<v8::String> v8String(const String& string)
{
return v8ExternalString(string);
}
void enableStringImplCache();
int toInt32(v8::Handle<v8::Value> value, bool& ok);
inline int toInt32(v8::Handle<v8::Value> value)
{
bool ok;
return toInt32(value, ok);
}
uint32_t toUInt32(v8::Handle<v8::Value> value, bool& ok);
inline uint32_t toUInt32(v8::Handle<v8::Value> value)
{
bool ok;
return toUInt32(value, ok);
}
inline float toFloat(v8::Local<v8::Value> value)
{
return static_cast<float>(value->NumberValue());
}
inline long long toInt64(v8::Local<v8::Value> value)
{
return static_cast<long long>(value->IntegerValue());
}
inline String toWebCoreString(v8::Handle<v8::Value> object)
{
return v8ValueToWebCoreString(object);
}
String toWebCoreString(const v8::Arguments&, int index);
inline const uint16_t* fromWebCoreString(const String& str)
{
return reinterpret_cast<const uint16_t*>(str.characters());
}
bool isUndefinedOrNull(v8::Handle<v8::Value> value);
v8::Handle<v8::Boolean> v8Boolean(bool value);
String toWebCoreStringWithNullCheck(v8::Handle<v8::Value> value);
AtomicString toAtomicWebCoreStringWithNullCheck(v8::Handle<v8::Value> value);
String toWebCoreStringWithNullOrUndefinedCheck(v8::Handle<v8::Value> value);
v8::Handle<v8::String> v8UndetectableString(const String& str);
v8::Handle<v8::Value> v8StringOrNull(const String& str);
v8::Handle<v8::Value> v8StringOrUndefined(const String& str);
v8::Handle<v8::Value> v8StringOrFalse(const String& str);
double toWebCoreDate(v8::Handle<v8::Value> object);
v8::Handle<v8::Value> v8DateOrNull(double value);
v8::Persistent<v8::FunctionTemplate> createRawTemplate();
struct BatchedAttribute;
struct BatchedCallback;
v8::Local<v8::Signature> configureTemplate(v8::Persistent<v8::FunctionTemplate>,
const char* interfaceName,
v8::Persistent<v8::FunctionTemplate> parentClass,
int fieldCount,
const BatchedAttribute*,
size_t attributeCount,
const BatchedCallback*,
size_t callbackCount);
v8::Handle<v8::Value> getElementStringAttr(const v8::AccessorInfo&,
const QualifiedName&);
void setElementStringAttr(const v8::AccessorInfo&,
const QualifiedName&,
v8::Local<v8::Value>);
v8::Persistent<v8::String> getToStringName();
v8::Persistent<v8::FunctionTemplate> getToStringTemplate();
String int32ToWebCoreString(int value);
PassRefPtr<DOMStringList> v8ValueToWebCoreDOMStringList(v8::Handle<v8::Value>);
class V8ParameterBase {
public:
operator String() { return toString<String>(); }
operator AtomicString() { return toString<AtomicString>(); }
protected:
V8ParameterBase(v8::Local<v8::Value> object) : m_v8Object(object), m_mode(Externalize), m_string() { }
bool prepareBase()
{
if (LIKELY(m_v8Object->IsString()))
return true;
if (LIKELY(m_v8Object->IsInt32())) {
setString(int32ToWebCoreString(m_v8Object->Int32Value()));
return true;
}
m_mode = DoNotExternalize;
v8::TryCatch block;
m_v8Object = m_v8Object->ToString();
if (block.HasCaught()) {
block.ReThrow();
return false;
}
if (m_v8Object.IsEmpty()) {
ASSERT_NOT_REACHED();
return false;
}
return true;
}
v8::Local<v8::Value> object() { return m_v8Object; }
void setString(String string)
{
m_string = string;
m_v8Object.Clear(); }
private:
v8::Local<v8::Value> m_v8Object;
ExternalMode m_mode;
String m_string;
template <class StringType>
StringType toString()
{
if (LIKELY(!m_v8Object.IsEmpty()))
return v8StringToWebCoreString<StringType>(m_v8Object.As<v8::String>(), m_mode);
return StringType(m_string);
}
};
enum V8ParameterMode {
DefaultMode,
WithNullCheck,
WithUndefinedOrNullCheck
};
template <V8ParameterMode MODE = DefaultMode>
class V8Parameter: public V8ParameterBase {
public:
V8Parameter(v8::Local<v8::Value> object) : V8ParameterBase(object) { }
V8Parameter(v8::Local<v8::Value> object, bool) : V8ParameterBase(object) { prepare(); }
bool prepare();
};
template<> inline bool V8Parameter<DefaultMode>::prepare()
{
return V8ParameterBase::prepareBase();
}
template<> inline bool V8Parameter<WithNullCheck>::prepare()
{
if (object()->IsNull()) {
setString(String());
return true;
}
return V8ParameterBase::prepareBase();
}
template<> inline bool V8Parameter<WithUndefinedOrNullCheck>::prepare()
{
if (object()->IsNull() || object()->IsUndefined()) {
setString(String());
return true;
}
return V8ParameterBase::prepareBase();
}
}
#endif // V8Binding_h