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1 /*
2  * Copyright (C) 2003 Apple Computer, Inc.  All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 
26 #ifndef JAVASCRIPTCORE_BINDINGS_JNI_JSOBJECT_H
27 #define JAVASCRIPTCORE_BINDINGS_JNI_JSOBJECT_H
28 
29 #if ENABLE(JAVA_BRIDGE)
30 
31 #include "JNIUtility.h"
32 #include <runtime/JSValue.h>
33 #include <wtf/RefPtr.h>
34 
35 #define jlong_to_ptr(a) ((void*)(uintptr_t)(a))
36 #define jlong_to_impptr(a) (static_cast<JSC::JSObject*>(((void*)(uintptr_t)(a))))
37 #define ptr_to_jlong(a) ((jlong)(uintptr_t)(a))
38 
39 #if PLATFORM(MAC)
40 
41 namespace JSC {
42 
43 class ArgList;
44 class ExecState;
45 class JSObject;
46 class MarkedArgumentBuffer;
47 
48 namespace Bindings {
49 
50 class RootObject;
51 
52 enum JSObjectCallType {
53     CreateNative,
54     Call,
55     Eval,
56     GetMember,
57     SetMember,
58     RemoveMember,
59     GetSlot,
60     SetSlot,
61     ToString,
62     Finalize
63 };
64 
65 struct JSObjectCallContext
66 {
67     JSObjectCallType type;
68     jlong nativeHandle;
69     jstring string;
70     jobjectArray args;
71     jint index;
72     jobject value;
73     CFRunLoopRef originatingLoop;
74     jvalue result;
75 };
76 
77 class JavaJSObject
78 {
79 public:
80     JavaJSObject(jlong nativeHandle);
81 
82     static jlong createNative(jlong nativeHandle);
83     jobject call(jstring methodName, jobjectArray args) const;
84     jobject eval(jstring script) const;
85     jobject getMember(jstring memberName) const;
86     void setMember(jstring memberName, jobject value) const;
87     void removeMember(jstring memberName) const;
88     jobject getSlot(jint index) const;
89     void setSlot(jint index, jobject value) const;
90     jstring toString() const;
91     void finalize() const;
92 
93     static jvalue invoke(JSObjectCallContext*);
94 
95     jobject convertValueToJObject(JSValue) const;
96     JSValue convertJObjectToValue(ExecState*, jobject) const;
97     void getListFromJArray(ExecState*, jobjectArray, MarkedArgumentBuffer&) const;
98 
99     RootObject* rootObject() const;
100 
101     // Must be called from the thread that will be used to access JavaScript.
102     static void initializeJNIThreading();
103 private:
104     RefPtr<RootObject> _rootObject;
105     JSObject* _imp;
106 };
107 
108 
109 } // namespace Bindings
110 
111 } // namespace JSC
112 
113 extern "C" {
114 
115 // The Java VM calls these functions to handle calls to methods in Java's JSObject class.
116 jlong KJS_JSCreateNativeJSObject(JNIEnv*, jclass, jstring jurl, jlong nativeHandle, jboolean ctx);
117 void KJS_JSObject_JSFinalize(JNIEnv*, jclass, jlong nativeJSObject);
118 jobject KJS_JSObject_JSObjectCall(JNIEnv*, jclass, jlong nativeJSObject, jstring jurl, jstring methodName, jobjectArray args, jboolean ctx);
119 jobject KJS_JSObject_JSObjectEval(JNIEnv*, jclass, jlong nativeJSObject, jstring jurl, jstring jscript, jboolean ctx);
120 jobject KJS_JSObject_JSObjectGetMember(JNIEnv*, jclass, jlong nativeJSObject, jstring jurl, jstring jname, jboolean ctx);
121 void KJS_JSObject_JSObjectSetMember(JNIEnv*, jclass, jlong nativeJSObject, jstring jurl, jstring jname, jobject value, jboolean ctx);
122 void KJS_JSObject_JSObjectRemoveMember(JNIEnv*, jclass, jlong nativeJSObject, jstring jurl, jstring jname, jboolean ctx);
123 jobject KJS_JSObject_JSObjectGetSlot(JNIEnv*, jclass, jlong nativeJSObject, jstring jurl, jint jindex, jboolean ctx);
124 void KJS_JSObject_JSObjectSetSlot(JNIEnv*, jclass, jlong nativeJSObject, jstring jurl, jint jindex, jobject value, jboolean ctx);
125 jstring KJS_JSObject_JSObjectToString(JNIEnv*, jclass, jlong nativeJSObject);
126 
127 }
128 
129 #endif // PLATFORM(MAC)
130 
131 #endif // ENABLE(JAVA_BRIDGE)
132 
133 #endif // JAVASCRIPTCORE_BINDINGS_JNI_JSOBJECT_H
134