| /* |
| * Copyright (C) 2003, 2008 Apple Inc. All rights reserved. |
| * 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: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. 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 APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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. |
| */ |
| |
| #define LOG_TAG "v8binding" |
| |
| #include "config.h" |
| |
| #include "jni_class.h" |
| #include "jni_instance.h" |
| #include "jni_runtime.h" |
| #include "jni_utility.h" |
| |
| #include <assert.h> |
| #include <utils/Log.h> |
| |
| using namespace JSC::Bindings; |
| |
| JavaInstance::JavaInstance (jobject instance) |
| { |
| m_instance = new JObjectWrapper(instance); |
| _class = 0; |
| } |
| |
| JavaInstance::~JavaInstance () |
| { |
| m_instance = 0; |
| delete _class; |
| } |
| |
| JavaClass* JavaInstance::getClass() const |
| { |
| if (_class == 0) { |
| _class = new JavaClass(javaInstance()); |
| } |
| return _class; |
| } |
| |
| bool JavaInstance::invokeMethod(const char* methodName, const NPVariant* args, int count, NPVariant* resultValue) |
| { |
| int i; |
| jvalue *jArgs; |
| JavaMethod *method = 0; |
| |
| VOID_TO_NPVARIANT(*resultValue); |
| |
| MethodList methodList = getClass()->methodsNamed(methodName); |
| |
| size_t numMethods = methodList.size(); |
| |
| // Try to find a good match for the overloaded method. The |
| // fundamental problem is that JavaScript doesn have the |
| // notion of method overloading and Java does. We could |
| // get a bit more sophisticated and attempt to does some |
| // type checking as we as checking the number of parameters. |
| JavaMethod *aMethod; |
| for (size_t methodIndex = 0; methodIndex < numMethods; methodIndex++) { |
| aMethod = methodList[methodIndex]; |
| if (aMethod->numParameters() == count) { |
| method = aMethod; |
| break; |
| } |
| } |
| if (method == 0) { |
| LOGW("unable to find an appropiate method\n"); |
| return false; |
| } |
| |
| const JavaMethod *jMethod = static_cast<const JavaMethod*>(method); |
| |
| if (count > 0) { |
| jArgs = (jvalue *)malloc (count * sizeof(jvalue)); |
| } |
| else |
| jArgs = 0; |
| |
| for (i = 0; i < count; i++) { |
| JavaParameter* aParameter = jMethod->parameterAt(i); |
| jArgs[i] = convertNPVariantToJValue(args[i], aParameter->getJNIType(), aParameter->type()); |
| } |
| |
| jvalue result; |
| |
| // The following code can be conditionally removed once we have a Tiger update that |
| // contains the new Java plugin. It is needed for builds prior to Tiger. |
| { |
| jobject obj = javaInstance(); |
| switch (jMethod->JNIReturnType()){ |
| case void_type: |
| callJNIMethodIDA<void>(obj, jMethod->methodID(obj), jArgs); |
| break; |
| case object_type: |
| result.l = callJNIMethodIDA<jobject>(obj, jMethod->methodID(obj), jArgs); |
| break; |
| case boolean_type: |
| result.z = callJNIMethodIDA<jboolean>(obj, jMethod->methodID(obj), jArgs); |
| break; |
| case byte_type: |
| result.b = callJNIMethodIDA<jbyte>(obj, jMethod->methodID(obj), jArgs); |
| break; |
| case char_type: |
| result.c = callJNIMethodIDA<jchar>(obj, jMethod->methodID(obj), jArgs); |
| break; |
| case short_type: |
| result.s = callJNIMethodIDA<jshort>(obj, jMethod->methodID(obj), jArgs); |
| break; |
| case int_type: |
| result.i = callJNIMethodIDA<jint>(obj, jMethod->methodID(obj), jArgs); |
| break; |
| |
| case long_type: |
| result.j = callJNIMethodIDA<jlong>(obj, jMethod->methodID(obj), jArgs); |
| break; |
| case float_type: |
| result.f = callJNIMethodIDA<jfloat>(obj, jMethod->methodID(obj), jArgs); |
| break; |
| case double_type: |
| result.d = callJNIMethodIDA<jdouble>(obj, jMethod->methodID(obj), jArgs); |
| break; |
| case invalid_type: |
| default: |
| break; |
| } |
| } |
| |
| convertJValueToNPVariant(result, jMethod->JNIReturnType(), jMethod->returnType(), resultValue); |
| free (jArgs); |
| |
| return true; |
| } |
| |
| JObjectWrapper::JObjectWrapper(jobject instance) |
| : _refCount(0) |
| { |
| assert (instance != 0); |
| |
| // Cache the JNIEnv used to get the global ref for this java instanace. |
| // It'll be used to delete the reference. |
| _env = getJNIEnv(); |
| |
| _instance = _env->NewGlobalRef(instance); |
| |
| LOGV("new global ref %p for %p\n", _instance, instance); |
| |
| if (_instance == NULL) { |
| fprintf (stderr, "%s: could not get GlobalRef for %p\n", __PRETTY_FUNCTION__, instance); |
| } |
| } |
| |
| JObjectWrapper::~JObjectWrapper() { |
| LOGV("deleting global ref %p\n", _instance); |
| _env->DeleteGlobalRef(_instance); |
| } |