C++ (Cpp) Interpreter::interpreterForGlobalObject Examples

Example #1

File: c_utility.cpp Project: BackupTheBerlios/wxwebcore-svn

// Variant value must be released with NPReleaseVariantValue()
void convertValueToNPVariant (KJS::ExecState *exec, const KJS::Value &value, NPVariant *result)
{
    Type type = value.type();

    if (type == StringType) {
        UString ustring = value.toString(exec);
        CString cstring = ustring.UTF8String();
        NPString string = { (const NPUTF8 *)cstring.c_str(), cstring.size() };
        NPN_InitializeVariantWithStringCopy (result, &string );
    }
    else if (type == NumberType) {
        NPN_InitializeVariantWithDouble (result, value.toNumber(exec));
    }
    else if (type == BooleanType) {
        NPN_InitializeVariantWithBool (result, value.toBoolean(exec));
    }
    else if (type == UnspecifiedType) {
        NPN_InitializeVariantAsUndefined(result);
    }
    else if (type == NullType) {
        NPN_InitializeVariantAsNull(result);
    }
    else if (type == ObjectType) {
        KJS::ObjectImp *objectImp = static_cast<KJS::ObjectImp*>(value.imp());
        if (objectImp->classInfo() == &KJS::RuntimeObjectImp::info) {
            KJS::RuntimeObjectImp *imp = static_cast<KJS::RuntimeObjectImp *>(value.imp());
            CInstance *instance = static_cast<CInstance*>(imp->getInternalInstance());
            NPN_InitializeVariantWithObject (result, instance->getObject());
        }
        else {

            KJS::Interpreter *originInterpreter = exec->interpreter();
            const Bindings::RootObject *originExecutionContext = rootForInterpreter(originInterpreter);

            KJS::Interpreter *interpreter = 0;
            if (originInterpreter->isGlobalObject(value)) {
                interpreter = originInterpreter->interpreterForGlobalObject (value.imp());
            }

            if (!interpreter)
                interpreter = originInterpreter;

            const Bindings::RootObject *executionContext = rootForInterpreter(interpreter);
            if (!executionContext) {
                Bindings::RootObject *newExecutionContext = new KJS::Bindings::RootObject(0);
                newExecutionContext->setInterpreter (interpreter);
                executionContext = newExecutionContext;
            }

            NPObject *obj = (NPObject *)exec->interpreter()->createLanguageInstanceForValue (exec, Instance::CLanguage, value.toObject(exec), originExecutionContext, executionContext);
            NPN_InitializeVariantWithObject (result, obj);
            _NPN_ReleaseObject (obj);
        }
    }
    else
        NPN_InitializeVariantAsUndefined(result);
}