diff options
Diffstat (limited to 'WebCore/bridge/jni/v8/JNIUtilityPrivate.cpp')
-rw-r--r-- | WebCore/bridge/jni/v8/JNIUtilityPrivate.cpp | 256 |
1 files changed, 256 insertions, 0 deletions
diff --git a/WebCore/bridge/jni/v8/JNIUtilityPrivate.cpp b/WebCore/bridge/jni/v8/JNIUtilityPrivate.cpp new file mode 100644 index 0000000..1d2a029 --- /dev/null +++ b/WebCore/bridge/jni/v8/JNIUtilityPrivate.cpp @@ -0,0 +1,256 @@ +/* + * Copyright 2009, The Android Open Source Project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "config.h" +#include "JNIUtilityPrivate.h" + +#include "jni_npobject.h" +#include "jni_runtime.h" + +namespace JSC { + +namespace Bindings { + +jvalue convertNPVariantToJValue(NPVariant value, JNIType jniType, const char* javaClassName) +{ + jvalue result; + NPVariantType type = value.type; + + switch (jniType) { + case array_type: + case object_type: + { + result.l = static_cast<jobject>(0); + + // First see if we have a Java instance. + if (type == NPVariantType_Object) { + NPObject* objectImp = NPVARIANT_TO_OBJECT(value); + if (JavaInstance* instance = ExtractJavaInstance(objectImp)) + result.l = instance->javaInstance(); + } + + // Now convert value to a string if the target type is a java.lang.string, and we're not + // converting from a Null. + if (!result.l && !strcmp(javaClassName, "java.lang.String")) { +#ifdef CONVERT_NULL_TO_EMPTY_STRING + if (type == NPVariantType_Null) { + JNIEnv* env = getJNIEnv(); + jchar buf[2]; + jobject javaString = env->functions->NewString(env, buf, 0); + result.l = javaString; + } else +#else + if (type == NPVariantType_String) +#endif + { + NPString src = NPVARIANT_TO_STRING(value); + JNIEnv* env = getJNIEnv(); + jobject javaString = env->NewStringUTF(src.UTF8Characters); + result.l = javaString; + } + } else if (!result.l) + bzero(&result, sizeof(jvalue)); // Handle it the same as a void case + } + break; + + case boolean_type: + { + if (type == NPVariantType_Bool) + result.z = NPVARIANT_TO_BOOLEAN(value); + else + bzero(&result, sizeof(jvalue)); // as void case + } + break; + + case byte_type: + { + if (type == NPVariantType_Int32) + result.b = static_cast<char>(NPVARIANT_TO_INT32(value)); + else + bzero(&result, sizeof(jvalue)); + } + break; + + case char_type: + { + if (type == NPVariantType_Int32) + result.c = static_cast<char>(NPVARIANT_TO_INT32(value)); + else + bzero(&result, sizeof(jvalue)); + } + break; + + case short_type: + { + if (type == NPVariantType_Int32) + result.s = static_cast<jshort>(NPVARIANT_TO_INT32(value)); + else + bzero(&result, sizeof(jvalue)); + } + break; + + case int_type: + { + if (type == NPVariantType_Int32) + result.i = static_cast<jint>(NPVARIANT_TO_INT32(value)); + else + bzero(&result, sizeof(jvalue)); + } + break; + + case long_type: + { + if (type == NPVariantType_Int32) + result.j = static_cast<jlong>(NPVARIANT_TO_INT32(value)); + else if (type == NPVariantType_Double) + result.j = static_cast<jlong>(NPVARIANT_TO_DOUBLE(value)); + else + bzero(&result, sizeof(jvalue)); + } + break; + + case float_type: + { + if (type == NPVariantType_Int32) + result.j = static_cast<jfloat>(NPVARIANT_TO_INT32(value)); + else if (type == NPVariantType_Double) + result.j = static_cast<jfloat>(NPVARIANT_TO_DOUBLE(value)); + else + bzero(&result, sizeof(jvalue)); + } + break; + + case double_type: + { + if (type == NPVariantType_Int32) + result.j = static_cast<jdouble>(NPVARIANT_TO_INT32(value)); + else if (type == NPVariantType_Double) + result.j = static_cast<jdouble>(NPVARIANT_TO_DOUBLE(value)); + else + bzero(&result, sizeof(jvalue)); + } + break; + + break; + + case invalid_type: + default: + case void_type: + { + bzero(&result, sizeof(jvalue)); + } + break; + } + return result; +} + + +void convertJValueToNPVariant(jvalue value, JNIType jniType, const char* javaTypeName, NPVariant* result) +{ + switch (jniType) { + case void_type: + { + VOID_TO_NPVARIANT(*result); + } + break; + + case object_type: + { + if (value.l) { + if (!strcmp(javaTypeName, "java.lang.String")) { + const char* v = getCharactersFromJString(static_cast<jstring>(value.l)); + // s is freed in NPN_ReleaseVariantValue (see npruntime.cpp) + const char* s = strdup(v); + releaseCharactersForJString(static_cast<jstring>(value.l), v); + STRINGZ_TO_NPVARIANT(s, *result); + } else + OBJECT_TO_NPVARIANT(JavaInstanceToNPObject(new JavaInstance(value.l)), *result); + } + else + VOID_TO_NPVARIANT(*result); + } + break; + + case boolean_type: + { + BOOLEAN_TO_NPVARIANT(value.z, *result); + } + break; + + case byte_type: + { + INT32_TO_NPVARIANT(value.b, *result); + } + break; + + case char_type: + { + INT32_TO_NPVARIANT(value.c, *result); + } + break; + + case short_type: + { + INT32_TO_NPVARIANT(value.s, *result); + } + break; + + case int_type: + { + INT32_TO_NPVARIANT(value.i, *result); + } + break; + + // TODO: Check if cast to double is needed. + case long_type: + { + DOUBLE_TO_NPVARIANT(value.j, *result); + } + break; + + case float_type: + { + DOUBLE_TO_NPVARIANT(value.f, *result); + } + break; + + case double_type: + { + DOUBLE_TO_NPVARIANT(value.d, *result); + } + break; + + case invalid_type: + default: + { + VOID_TO_NPVARIANT(*result); + } + break; + } +} + +} // end of namespace Bindings + +} // end of namespace JSC |