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      1 /*
      2  * Copyright (C) 2003, 2004, 2005, 2007, 2009, 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  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. 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 APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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 JNIBridge_h
     28 #define JNIBridge_h
     29 
     30 #if ENABLE(MAC_JAVA_BRIDGE)
     31 
     32 #include "Bridge.h"
     33 #include "JNIUtility.h"
     34 
     35 #if USE(JSC)
     36 #include "JavaStringJSC.h"
     37 #elif USE(V8)
     38 #include "JavaStringV8.h"
     39 #endif
     40 
     41 namespace JSC {
     42 
     43 namespace Bindings {
     44 
     45 typedef const char* RuntimeType;
     46 
     47 class JavaString {
     48 public:
     49     JavaString()
     50     {
     51         m_impl.init();
     52     }
     53 
     54     JavaString(JNIEnv* e, jstring s)
     55     {
     56         m_impl.init(e, s);
     57     }
     58 
     59     JavaString(jstring s)
     60     {
     61         m_impl.init(getJNIEnv(), s);
     62     }
     63 
     64     const char* UTF8String() const { return m_impl.UTF8String(); }
     65     const jchar* uchars() const { return m_impl.uchars(); }
     66     int length() const { return m_impl.length(); }
     67 #if USE(JSC)
     68     operator UString() const { return m_impl.uString(); }
     69 #endif
     70 
     71 private:
     72     JavaStringImpl m_impl;
     73 };
     74 
     75 class JavaParameter {
     76 public:
     77     JavaParameter() : m_JNIType(invalid_type) { }
     78     JavaParameter(JNIEnv*, jstring type);
     79     virtual ~JavaParameter() { }
     80 
     81     RuntimeType type() const { return m_type.UTF8String(); }
     82     JNIType getJNIType() const { return m_JNIType; }
     83 
     84 private:
     85     JavaString m_type;
     86     JNIType m_JNIType;
     87 };
     88 
     89 class JavaMethod : public Method {
     90 public:
     91     JavaMethod(JNIEnv*, jobject aMethod);
     92     ~JavaMethod();
     93 
     94     const JavaString& name() const { return m_name; }
     95     RuntimeType returnType() const { return m_returnType.UTF8String(); }
     96     JavaParameter* parameterAt(int i) const { return &m_parameters[i]; }
     97     int numParameters() const { return m_numParameters; }
     98 
     99     const char* signature() const;
    100     JNIType JNIReturnType() const;
    101 
    102     jmethodID methodID(jobject obj) const;
    103 
    104     bool isStatic() const { return m_isStatic; }
    105 
    106 private:
    107     JavaParameter* m_parameters;
    108     int m_numParameters;
    109     JavaString m_name;
    110     mutable char* m_signature;
    111     JavaString m_returnType;
    112     JNIType m_JNIReturnType;
    113     mutable jmethodID m_methodID;
    114     bool m_isStatic;
    115 };
    116 
    117 } // namespace Bindings
    118 
    119 } // namespace JSC
    120 
    121 #endif // ENABLE(MAC_JAVA_BRIDGE)
    122 
    123 #endif // JNIBridge_h
    124