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/*
* Copyright (C) 2003 Apple Computer, 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.
*/
#ifndef _JNI_INSTANCE_H_
#define _JNI_INSTANCE_H_
#include <JavaVM/jni.h>
#include <wtf/RefPtr.h>
namespace android {
class WeakJavaInstance;
}
using namespace WTF;
namespace JSC {
namespace Bindings {
class JavaClass;
class JObjectWrapper
{
public:
JObjectWrapper(jobject instance);
~JObjectWrapper();
void ref() { _refCount++; }
void deref()
{
if (--_refCount == 0)
delete this;
}
jobject getLocalRef() const;
private:
JNIEnv *_env;
unsigned int _refCount;
jobject _instance; // it is a global weak reference.
jmethodID mWeakRefGet; // cache WeakReference::Get method id
};
class JavaInstance
{
public:
JavaInstance(jobject instance);
~JavaInstance();
void ref() { _refCount++; }
void deref()
{
if (--_refCount == 0)
delete this;
}
JavaClass* getClass() const;
bool invokeMethod(const char* name, const NPVariant* args, uint32_t argsCount, NPVariant* result);
// Returns a local reference, and the caller must delete
// the returned reference after use.
jobject getLocalRef() const {
return _instance->getLocalRef();
}
private:
RefPtr<JObjectWrapper> _instance;
unsigned int _refCount;
mutable JavaClass* _class;
};
} // namespace Bindings
} // namespace JSC
#endif // _JNI_INSTANCE_H_
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