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Issue 9271056: ABP/Android V8 integration code (Closed)
Patch Set: Created Jan. 30, 2013, 9:27 a.m.
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1 /*
2 * This file is part of the Adblock Plus,
3 * Copyright (C) 2006-2012 Eyeo GmbH
4 *
5 * Adblock Plus is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 3 as
7 * published by the Free Software Foundation.
8 *
9 * Adblock Plus is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with Adblock Plus. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18 #include <math.h>
19 #include <android/log.h>
20 #include <jni.h>
21 #include <v8.h>
22
23 jobject NewBoolean(JNIEnv *pEnv, jboolean value)
24 {
25 static jclass cls = pEnv->FindClass("java/lang/Boolean");
26 static jmethodID cid = pEnv->GetMethodID(cls, "<init>", "(Z)V");
27 return pEnv->NewObject(cls, cid, value);
28 }
29
30 jobject NewInt(JNIEnv *pEnv, jint value)
31 {
32 static jclass cls = pEnv->FindClass("java/lang/Integer");
33 static jmethodID cid = pEnv->GetMethodID(cls, "<init>", "(I)V");
34 return pEnv->NewObject(cls, cid, value);
35 }
36
37 jobject NewLong(JNIEnv *pEnv, jlong value)
38 {
39 static jclass cls = pEnv->FindClass("java/lang/Long");
40 static jmethodID cid = pEnv->GetMethodID(cls, "<init>", "(J)V");
41 return pEnv->NewObject(cls, cid, value);
42 }
43
44 jobject NewDouble(JNIEnv *pEnv, jdouble value)
45 {
46 static jclass cls = pEnv->FindClass("java/lang/Double");
47 static jmethodID cid = pEnv->GetMethodID(cls, "<init>", "(D)V");
48 return pEnv->NewObject(cls, cid, value);
49 }
50
51 jstring NewString(JNIEnv *pEnv, v8::Handle<v8::String> str)
52 {
53 return pEnv->NewStringUTF(*v8::String::Utf8Value(str));
54 }
55
56 jobject NewDate(JNIEnv *pEnv, v8::Handle<v8::Date> date)
57 {
58 static jclass cls = pEnv->FindClass("java/lang/Double");
59 static jmethodID cid = pEnv->GetMethodID(cls, "<init>", "(J)V");
60 jlong value = floor(date->NumberValue());
61 return pEnv->NewObject(cls, cid, value);
62 }
63
64 jobject wrapJSObject(JNIEnv *pEnv, v8::Handle<v8::Value> value)
65 {
66 v8::HandleScope handle_scope;
67
68 if (value.IsEmpty() || value->IsNull() || value->IsUndefined()) return NULL;
69 if (value->IsTrue()) return NewBoolean(pEnv, JNI_TRUE);
70 if (value->IsFalse()) return NewBoolean(pEnv, JNI_FALSE);
71
72 if (value->IsInt32()) return NewInt(pEnv, value->Int32Value());
73 if (value->IsUint32()) return NewLong(pEnv, value->IntegerValue());
74 if (value->IsString()) return NewString(pEnv, v8::Handle<v8::String>::Cast(val ue));
75 if (value->IsDate()) return NewDate(pEnv, v8::Handle<v8::Date>::Cast(value));
76 if (value->IsNumber()) return NewDouble(pEnv, value->NumberValue());
77
78 // return wrap(value->ToObject());
79 return NULL;
80 }
81
82 v8::Handle<v8::Value> wrapJavaObject(JNIEnv *pEnv, jobject value)
83 {
84 v8::HandleScope handle_scope;
85 v8::TryCatch try_catch;
86
87 if (value == NULL)
88 return handle_scope.Close(v8::Null());
89
90 v8::Handle<v8::Value> result;
91
92 jclass cls = pEnv->GetObjectClass(value);
93
94 if (pEnv->IsAssignableFrom(cls, pEnv->FindClass("java/lang/String")) == JNI_TR UE)
95 {
96 jstring str = (jstring) value;
97 const char *p = pEnv->GetStringUTFChars(str, NULL);
98
99 result = v8::String::New(p, pEnv->GetStringUTFLength(str));
100
101 pEnv->ReleaseStringUTFChars(str, p);
102 }
103 else if (pEnv->IsAssignableFrom(cls, pEnv->FindClass("java/lang/Long")) == JNI _TRUE
104 || pEnv->IsAssignableFrom(cls, pEnv->FindClass("java/lang/Integer")) == JN I_TRUE
105 || pEnv->IsAssignableFrom(cls, pEnv->FindClass("java/lang/Short")) == JNI_ TRUE
106 || pEnv->IsAssignableFrom(cls, pEnv->FindClass("java/lang/Byte")) == JNI_T RUE)
107 {
108 static jmethodID mid = pEnv->GetMethodID(pEnv->FindClass("java/lang/Number") , "intValue", "()I");
109
110 result = v8::Integer::New(pEnv->CallIntMethod(value, mid));
111 }
112 else if (pEnv->IsAssignableFrom(cls, pEnv->FindClass("java/lang/Double")) == J NI_TRUE
113 || pEnv->IsAssignableFrom(cls, pEnv->FindClass("java/lang/Float")) == JNI_ TRUE)
114 {
115 static jmethodID mid = pEnv->GetMethodID(pEnv->FindClass("java/lang/Number") , "doubleValue", "()D");
116
117 result = v8::Number::New(pEnv->CallDoubleMethod(value, mid));
118 }
119 else if (pEnv->IsAssignableFrom(cls, pEnv->FindClass("java/lang/Boolean")) == JNI_TRUE)
120 {
121 static jmethodID mid = pEnv->GetMethodID(pEnv->FindClass("java/lang/Boolean" ), "booleanValue", "()Z");
122
123 result = v8::Boolean::New(pEnv->CallBooleanMethod(value, mid));
124 }
125 else if (pEnv->IsAssignableFrom(cls, pEnv->FindClass("java/util/Date")) == JNI _TRUE)
126 {
127 static jmethodID mid = pEnv->GetMethodID(pEnv->FindClass("java/util/Date"), "getTime", "()J");
128
129 result = v8::Date::New(pEnv->CallLongMethod(value, mid));
130 }
131 /*
132 else if (pEnv->IsAssignableFrom(cls, pEnv->FindClass("java/lang/reflect/Metho d")) == JNI_TRUE)
133 {
134 result = jni::CJavaFunction::Wrap(pEnv, value);
135 }
136 */
137 else
138 {
139 static jmethodID mid = pEnv->GetMethodID(pEnv->FindClass("java/lang/Class"), "isArray", "()Z");
140
141 if (pEnv->CallBooleanMethod(pEnv->GetObjectClass(value), mid))
142 {
143 size_t len = pEnv->GetArrayLength((jarray) value);
144 v8::Handle<v8::Array> items = v8::Array::New(len);
145
146 for (size_t i=0; i<len; i++)
147 {
148 jobject item = pEnv->GetObjectArrayElement((jobjectArray) value, i);
149 items->Set(i, wrapJavaObject(pEnv, item));
150 pEnv->DeleteLocalRef(item);
151 }
152
153 result = items;
154 }
155 }
156
157 return try_catch.HasCaught() ? v8::Handle<v8::Value>() : handle_scope.Close(re sult);
158 // return ThrowIf(try_catch) ? v8::Handle<v8::Value>() : handle_scope.Close(res ult);
159 }
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