1 /* 2 * Copyright (C) 2003, 2008, 2010 Apple Inc. All rights reserved. 3 * Copyright 2010, The Android Open Source Project 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef JavaInstanceV8_h 28 #define JavaInstanceV8_h 29 30 #include "npruntime.h" 31 32 #include <JavaVM/jni.h> 33 #include <wtf/RefCounted.h> 34 #include <wtf/RefPtr.h> 35 36 using namespace WTF; 37 38 namespace JSC { 39 40 namespace Bindings { 41 42 class JavaClass; 43 44 class JObjectWrapper { 45 friend class RefPtr<JObjectWrapper>; 46 friend class JavaField; 47 friend class JavaInstance; 48 49 public: instance()50 jobject instance() const { return m_instance; } setInstance(jobject instance)51 void setInstance(jobject instance) { m_instance = instance; } 52 ref()53 void ref() { m_refCount++; } deref()54 void deref() 55 { 56 if (!(--m_refCount)) 57 delete this; 58 } 59 60 protected: 61 JObjectWrapper(jobject); 62 ~JObjectWrapper(); 63 64 jobject m_instance; 65 66 private: 67 JNIEnv* m_env; 68 unsigned int m_refCount; 69 }; 70 71 class JavaInstance : public RefCounted<JavaInstance> { 72 public: 73 JavaInstance(jobject instance); 74 virtual ~JavaInstance(); 75 76 JavaClass* getClass() const; 77 78 bool invokeMethod(const char* name, const NPVariant* args, int argsCount, NPVariant* result); 79 javaInstance()80 jobject javaInstance() const { return m_instance->m_instance; } 81 82 // These functions are called before and after the main entry points into 83 // the native implementations. They can be used to establish and cleanup 84 // any needed state. begin()85 void begin() { virtualBegin(); } end()86 void end() { virtualEnd(); } 87 88 protected: 89 RefPtr<JObjectWrapper> m_instance; 90 mutable JavaClass* m_class; 91 92 virtual void virtualBegin(); 93 virtual void virtualEnd(); 94 }; 95 96 } // namespace Bindings 97 98 } // namespace JSC 99 100 #endif // JavaInstanceV8_h 101