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 #include "config.h"
28 #include "JavaInstanceJobjectV8.h"
29
30 #if ENABLE(JAVA_BRIDGE)
31
32 #include "JNIUtilityPrivate.h"
33 #include "JavaClassJobjectV8.h"
34 #include "JavaFieldV8.h"
35 #include "JavaMethod.h"
36
37 #include <wtf/OwnArrayPtr.h>
38 #include <wtf/PassOwnPtr.h>
39 #include <wtf/text/CString.h>
40 #include <wtf/text/StringBuilder.h>
41
42 using namespace JSC::Bindings;
43
JavaInstanceJobject(jobject instance)44 JavaInstanceJobject::JavaInstanceJobject(jobject instance)
45 : m_instance(new JobjectWrapper(instance))
46 {
47 }
48
49 #define NUM_LOCAL_REFS 64
50
begin()51 void JavaInstanceJobject::begin()
52 {
53 getJNIEnv()->PushLocalFrame(NUM_LOCAL_REFS);
54 }
55
end()56 void JavaInstanceJobject::end()
57 {
58 getJNIEnv()->PopLocalFrame(0);
59 }
60
getClass() const61 JavaClass* JavaInstanceJobject::getClass() const
62 {
63 if (!m_class)
64 m_class = adoptPtr(new JavaClassJobject(javaInstance()));
65 return m_class.get();
66 }
67
invokeMethod(const JavaMethod * method,JavaValue * args)68 JavaValue JavaInstanceJobject::invokeMethod(const JavaMethod* method, JavaValue* args)
69 {
70 ASSERT(getClass()->methodsNamed(method->name().utf8().data()).find(method) != notFound);
71 unsigned int numParams = method->numParameters();
72 OwnArrayPtr<jvalue> jvalueArgs = adoptArrayPtr(new jvalue[numParams]);
73 for (unsigned int i = 0; i < numParams; ++i)
74 jvalueArgs[i] = javaValueToJvalue(args[i]);
75 jvalue result = callJNIMethod(javaInstance(), method->returnType(), method->name().utf8().data(), method->signature(), jvalueArgs.get());
76 return jvalueToJavaValue(result, method->returnType());
77 }
78
appendClassName(StringBuilder & builder,const char * className)79 static void appendClassName(StringBuilder& builder, const char* className)
80 {
81 char* c = fastStrDup(className);
82 char* result = c;
83 while (*c) {
84 if (*c == '.')
85 *c = '/';
86 c++;
87 }
88 builder.append(result);
89 fastFree(result);
90 }
91
getField(const JavaField * field)92 JavaValue JavaInstanceJobject::getField(const JavaField* field)
93 {
94 ASSERT(getClass()->fieldNamed(field->name().utf8().data()) == field);
95
96 StringBuilder signature;
97 signature.append(signatureFromJavaType(field->type()));
98 if (field->type() == JavaTypeObject || field->type() == JavaTypeString) {
99 appendClassName(signature, field->typeClassName());
100 signature.append(';');
101 }
102 return jvalueToJavaValue(getJNIField(javaInstance(), field->type(), field->name().utf8().data(), signature.toString().utf8().data()), field->type());
103 }
104
105 #endif // ENABLE(JAVA_BRIDGE)
106