gecko-dev/mobile/android/modules/JNI.jsm

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JavaScript

// JavaScript to Java bridge via the Java Native Interface
// Allows calling into Android SDK from JavaScript in Firefox Add-On.
// Released into the public domain.
// C. Scott Ananian <cscott@laptop.org> (http://cscott.net)
// NOTE: All changes to this file should first be pushed to the repo at:
// https://github.com/cscott/skeleton-addon-fxandroid/tree/jni
var EXPORTED_SYMBOLS = ["JNI","android_log"];
Components.utils.import("resource://gre/modules/ctypes.jsm")
var liblog = ctypes.open('liblog.so');
var android_log = liblog.declare("__android_log_write",
ctypes.default_abi,
ctypes.int32_t,
ctypes.int32_t,
ctypes.char.ptr,
ctypes.char.ptr);
var libxul = ctypes.open('libxul.so');
var jenvptr = ctypes.voidptr_t;
var jclass = ctypes.voidptr_t;
var jobject = ctypes.voidptr_t;
var jvalue = ctypes.voidptr_t;
var jmethodid = ctypes.voidptr_t;
var jfieldid = ctypes.voidptr_t;
var jboolean = ctypes.uint8_t;
var jbyte = ctypes.int8_t;
var jchar = ctypes.uint16_t;
var jshort = ctypes.int16_t;
var jint = ctypes.int32_t;
var jlong = ctypes.int64_t;
var jfloat = ctypes.float32_t;
var jdouble = ctypes.float64_t;
var jsize = jint;
var jstring = jobject;
var jarray = jobject;
var jthrowable = jobject;
var JNINativeInterface = new ctypes.StructType(
"JNINativeInterface",
[{reserved0: ctypes.voidptr_t},
{reserved1: ctypes.voidptr_t},
{reserved2: ctypes.voidptr_t},
{reserved3: ctypes.voidptr_t},
{GetVersion: new ctypes.FunctionType(ctypes.default_abi,
ctypes.int32_t,
[ctypes.voidptr_t]).ptr},
{DefineClass: new ctypes.FunctionType(ctypes.default_abi,
jclass,
[jenvptr, ctypes.char.ptr, jobject,
jbyte.array(), jsize]).ptr},
{FindClass: new ctypes.FunctionType(ctypes.default_abi,
jclass,
[jenvptr,
ctypes.char.ptr]).ptr},
{FromReflectedMethod: new ctypes.FunctionType(ctypes.default_abi,
jmethodid,
[jenvptr, jobject]).ptr},
{FromReflectedField: new ctypes.FunctionType(ctypes.default_abi,
jfieldid,
[jenvptr, jobject]).ptr},
{ToReflectedMethod: new ctypes.FunctionType(ctypes.default_abi,
jobject,
[jenvptr, jclass,
jmethodid]).ptr},
{GetSuperclass: new ctypes.FunctionType(ctypes.default_abi,
jclass, [jenvptr, jclass]).ptr},
{IsAssignableFrom: new ctypes.FunctionType(ctypes.default_abi,
jboolean,
[jenvptr, jclass, jclass]).ptr},
{ToReflectedField: new ctypes.FunctionType(ctypes.default_abi,
jobject,
[jenvptr, jclass,
jfieldid]).ptr},
{Throw: new ctypes.FunctionType(ctypes.default_abi,
jint, [jenvptr, jthrowable]).ptr},
{ThrowNew: new ctypes.FunctionType(ctypes.default_abi,
jint, [jenvptr, jclass,
ctypes.char.ptr]).ptr},
{ExceptionOccurred: new ctypes.FunctionType(ctypes.default_abi,
jthrowable, [jenvptr]).ptr},
{ExceptionDescribe: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t, [jenvptr]).ptr},
{ExceptionClear: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t, [jenvptr]).ptr},
{FatalError: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr,
ctypes.char.ptr]).ptr},
{PushLocalFrame: new ctypes.FunctionType(ctypes.default_abi,
jint,
[jenvptr, jint]).ptr},
{PopLocalFrame: new ctypes.FunctionType(ctypes.default_abi,
jobject,
[jenvptr, jobject]).ptr},
{NewGlobalRef: new ctypes.FunctionType(ctypes.default_abi,
jobject, [jenvptr, jobject]).ptr},
{DeleteGlobalRef: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr,
jobject]).ptr},
{DeleteLocalRef: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr,
jobject]).ptr},
{IsSameObject: new ctypes.FunctionType(ctypes.default_abi,
jboolean,
[jenvptr, jobject, jobject]).ptr},
{NewLocalRef: new ctypes.FunctionType(ctypes.default_abi,
jobject, [jenvptr, jobject]).ptr},
{EnsureLocalCapacity: new ctypes.FunctionType(ctypes.default_abi,
jint, [jenvptr, jint]).ptr},
{AllocObject: new ctypes.FunctionType(ctypes.default_abi,
jobject, [jenvptr, jclass]).ptr},
{NewObject: new ctypes.FunctionType(ctypes.default_abi,
jobject,
[jenvptr,
jclass,
jmethodid,
"..."]).ptr},
{NewObjectV: ctypes.voidptr_t},
{NewObjectA: ctypes.voidptr_t},
{GetObjectClass: new ctypes.FunctionType(ctypes.default_abi,
jclass,
[jenvptr, jobject]).ptr},
{IsInstanceOf: new ctypes.FunctionType(ctypes.default_abi,
jboolean,
[jenvptr, jobject, jclass]).ptr},
{GetMethodID: new ctypes.FunctionType(ctypes.default_abi,
jmethodid,
[jenvptr,
jclass,
ctypes.char.ptr,
ctypes.char.ptr]).ptr},
{CallObjectMethod: new ctypes.FunctionType(ctypes.default_abi,
jobject,
[jenvptr, jobject, jmethodid,
"..."]).ptr},
{CallObjectMethodV: ctypes.voidptr_t},
{CallObjectMethodA: ctypes.voidptr_t},
{CallBooleanMethod: new ctypes.FunctionType(ctypes.default_abi,
jboolean,
[jenvptr,
jobject,
jmethodid,
"..."]).ptr},
{CallBooleanMethodV: ctypes.voidptr_t},
{CallBooleanMethodA: ctypes.voidptr_t},
{CallByteMethod: new ctypes.FunctionType(ctypes.default_abi,
jbyte,
[jenvptr,
jobject,
jmethodid,
"..."]).ptr},
{CallByteMethodV: ctypes.voidptr_t},
{CallByteMethodA: ctypes.voidptr_t},
{CallCharMethod: new ctypes.FunctionType(ctypes.default_abi,
jchar,
[jenvptr,
jobject,
jmethodid,
"..."]).ptr},
{CallCharMethodV: ctypes.voidptr_t},
{CallCharMethodA: ctypes.voidptr_t},
{CallShortMethod: new ctypes.FunctionType(ctypes.default_abi,
jshort,
[jenvptr,
jobject,
jmethodid,
"..."]).ptr},
{CallShortMethodV: ctypes.voidptr_t},
{CallShortMethodA: ctypes.voidptr_t},
{CallIntMethod: new ctypes.FunctionType(ctypes.default_abi,
jint,
[jenvptr,
jobject,
jmethodid,
"..."]).ptr},
{CallIntMethodV: ctypes.voidptr_t},
{CallIntMethodA: ctypes.voidptr_t},
{CallLongMethod: new ctypes.FunctionType(ctypes.default_abi,
jlong,
[jenvptr,
jobject,
jmethodid,
"..."]).ptr},
{CallLongMethodV: ctypes.voidptr_t},
{CallLongMethodA: ctypes.voidptr_t},
{CallFloatMethod: new ctypes.FunctionType(ctypes.default_abi,
jfloat,
[jenvptr,
jobject,
jmethodid,
"..."]).ptr},
{CallFloatMethodV: ctypes.voidptr_t},
{CallFloatMethodA: ctypes.voidptr_t},
{CallDoubleMethod: new ctypes.FunctionType(ctypes.default_abi,
jdouble,
[jenvptr,
jobject,
jmethodid,
"..."]).ptr},
{CallDoubleMethodV: ctypes.voidptr_t},
{CallDoubleMethodA: ctypes.voidptr_t},
{CallVoidMethod: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr,
jobject,
jmethodid,
"..."]).ptr},
{CallVoidMethodV: ctypes.voidptr_t},
{CallVoidMethodA: ctypes.voidptr_t},
{CallNonvirtualObjectMethod: new ctypes.FunctionType(ctypes.default_abi,
jobject,
[jenvptr, jobject,
jclass, jmethodid,
"..."]).ptr},
{CallNonvirtualObjectMethodV: ctypes.voidptr_t},
{CallNonvirtualObjectMethodA: ctypes.voidptr_t},
{CallNonvirtualBooleanMethod: new ctypes.FunctionType(ctypes.default_abi,
jboolean,
[jenvptr, jobject,
jclass, jmethodid,
"..."]).ptr},
{CallNonvirtualBooleanMethodV: ctypes.voidptr_t},
{CallNonvirtualBooleanMethodA: ctypes.voidptr_t},
{CallNonvirtualByteMethod: new ctypes.FunctionType(ctypes.default_abi,
jbyte,
[jenvptr, jobject,
jclass, jmethodid,
"..."]).ptr},
{CallNonvirtualByteMethodV: ctypes.voidptr_t},
{CallNonvirtualByteMethodA: ctypes.voidptr_t},
{CallNonvirtualCharMethod: new ctypes.FunctionType(ctypes.default_abi,
jchar,
[jenvptr, jobject,
jclass, jmethodid,
"..."]).ptr},
{CallNonvirtualCharMethodV: ctypes.voidptr_t},
{CallNonvirtualCharMethodA: ctypes.voidptr_t},
{CallNonvirtualShortMethod: new ctypes.FunctionType(ctypes.default_abi,
jshort,
[jenvptr, jobject,
jclass, jmethodid,
"..."]).ptr},
{CallNonvirtualShortMethodV: ctypes.voidptr_t},
{CallNonvirtualShortMethodA: ctypes.voidptr_t},
{CallNonvirtualIntMethod: new ctypes.FunctionType(ctypes.default_abi,
jint,
[jenvptr, jobject,
jclass, jmethodid,
"..."]).ptr},
{CallNonvirtualIntMethodV: ctypes.voidptr_t},
{CallNonvirtualIntMethodA: ctypes.voidptr_t},
{CallNonvirtualLongMethod: new ctypes.FunctionType(ctypes.default_abi,
jlong,
[jenvptr, jobject,
jclass, jmethodid,
"..."]).ptr},
{CallNonvirtualLongMethodV: ctypes.voidptr_t},
{CallNonvirtualLongMethodA: ctypes.voidptr_t},
{CallNonvirtualFloatMethod: new ctypes.FunctionType(ctypes.default_abi,
jfloat,
[jenvptr, jobject,
jclass, jmethodid,
"..."]).ptr},
{CallNonvirtualFloatMethodV: ctypes.voidptr_t},
{CallNonvirtualFloatMethodA: ctypes.voidptr_t},
{CallNonvirtualDoubleMethod: new ctypes.FunctionType(ctypes.default_abi,
jdouble,
[jenvptr, jobject,
jclass, jmethodid,
"..."]).ptr},
{CallNonvirtualDoubleMethodV: ctypes.voidptr_t},
{CallNonvirtualDoubleMethodA: ctypes.voidptr_t},
{CallNonvirtualVoidMethod: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jobject,
jclass, jmethodid,
"..."]).ptr},
{CallNonvirtualVoidMethodV: ctypes.voidptr_t},
{CallNonvirtualVoidMethodA: ctypes.voidptr_t},
{GetFieldID: new ctypes.FunctionType(ctypes.default_abi,
jfieldid,
[jenvptr, jclass,
ctypes.char.ptr,
ctypes.char.ptr]).ptr},
{GetObjectField: new ctypes.FunctionType(ctypes.default_abi,
jobject,
[jenvptr, jobject,
jfieldid]).ptr},
{GetBooleanField: new ctypes.FunctionType(ctypes.default_abi,
jboolean,
[jenvptr, jobject,
jfieldid]).ptr},
{GetByteField: new ctypes.FunctionType(ctypes.default_abi,
jbyte,
[jenvptr, jobject,
jfieldid]).ptr},
{GetCharField: new ctypes.FunctionType(ctypes.default_abi,
jchar,
[jenvptr, jobject,
jfieldid]).ptr},
{GetShortField: new ctypes.FunctionType(ctypes.default_abi,
jshort,
[jenvptr, jobject,
jfieldid]).ptr},
{GetIntField: new ctypes.FunctionType(ctypes.default_abi,
jint,
[jenvptr, jobject,
jfieldid]).ptr},
{GetLongField: new ctypes.FunctionType(ctypes.default_abi,
jlong,
[jenvptr, jobject,
jfieldid]).ptr},
{GetFloatField: new ctypes.FunctionType(ctypes.default_abi,
jfloat,
[jenvptr, jobject,
jfieldid]).ptr},
{GetDoubleField: new ctypes.FunctionType(ctypes.default_abi,
jdouble,
[jenvptr, jobject,
jfieldid]).ptr},
{SetObjectField: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jobject,
jfieldid, jobject]).ptr},
{SetBooleanField: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jobject,
jfieldid, jboolean]).ptr},
{SetByteField: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jobject,
jfieldid, jbyte]).ptr},
{SetCharField: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jobject,
jfieldid, jchar]).ptr},
{SetShortField: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jobject,
jfieldid, jshort]).ptr},
{SetIntField: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jobject,
jfieldid, jint]).ptr},
{SetLongField: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jobject,
jfieldid, jlong]).ptr},
{SetFloatField: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jobject,
jfieldid, jfloat]).ptr},
{SetDoubleField: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jobject,
jfieldid, jdouble]).ptr},
{GetStaticMethodID: new ctypes.FunctionType(ctypes.default_abi,
jmethodid,
[jenvptr,
jclass,
ctypes.char.ptr,
ctypes.char.ptr]).ptr},
{CallStaticObjectMethod: new ctypes.FunctionType(ctypes.default_abi,
jobject,
[jenvptr, jclass,
jmethodid,
"..."]).ptr},
{CallStaticObjectMethodV: ctypes.voidptr_t},
{CallStaticObjectMethodA: ctypes.voidptr_t},
{CallStaticBooleanMethod: new ctypes.FunctionType(ctypes.default_abi,
jboolean,
[jenvptr, jclass,
jmethodid,
"..."]).ptr},
{CallStaticBooleanMethodV: ctypes.voidptr_t},
{CallStaticBooleanMethodA: ctypes.voidptr_t},
{CallStaticByteMethod: new ctypes.FunctionType(ctypes.default_abi,
jbyte,
[jenvptr, jclass,
jmethodid,
"..."]).ptr},
{CallStaticByteMethodV: ctypes.voidptr_t},
{CallStaticByteMethodA: ctypes.voidptr_t},
{CallStaticCharMethod: new ctypes.FunctionType(ctypes.default_abi,
jchar,
[jenvptr, jclass,
jmethodid,
"..."]).ptr},
{CallStaticCharMethodV: ctypes.voidptr_t},
{CallStaticCharMethodA: ctypes.voidptr_t},
{CallStaticShortMethod: new ctypes.FunctionType(ctypes.default_abi,
jshort,
[jenvptr, jclass,
jmethodid,
"..."]).ptr},
{CallStaticShortMethodV: ctypes.voidptr_t},
{CallStaticShortMethodA: ctypes.voidptr_t},
{CallStaticIntMethod: new ctypes.FunctionType(ctypes.default_abi,
jint,
[jenvptr, jclass,
jmethodid,
"..."]).ptr},
{CallStaticIntMethodV: ctypes.voidptr_t},
{CallStaticIntMethodA: ctypes.voidptr_t},
{CallStaticLongMethod: new ctypes.FunctionType(ctypes.default_abi,
jlong,
[jenvptr, jclass,
jmethodid,
"..."]).ptr},
{CallStaticLongMethodV: ctypes.voidptr_t},
{CallStaticLongMethodA: ctypes.voidptr_t},
{CallStaticFloatMethod: new ctypes.FunctionType(ctypes.default_abi,
jfloat,
[jenvptr, jclass,
jmethodid,
"..."]).ptr},
{CallStaticFloatMethodV: ctypes.voidptr_t},
{CallStaticFloatMethodA: ctypes.voidptr_t},
{CallStaticDoubleMethod: new ctypes.FunctionType(ctypes.default_abi,
jdouble,
[jenvptr, jclass,
jmethodid,
"..."]).ptr},
{CallStaticDoubleMethodV: ctypes.voidptr_t},
{CallStaticDoubleMethodA: ctypes.voidptr_t},
{CallStaticVoidMethod: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jclass,
jmethodid,
"..."]).ptr},
{CallStaticVoidMethodV: ctypes.voidptr_t},
{CallStaticVoidMethodA: ctypes.voidptr_t},
{GetStaticFieldID: new ctypes.FunctionType(ctypes.default_abi,
jfieldid,
[jenvptr, jclass,
ctypes.char.ptr,
ctypes.char.ptr]).ptr},
{GetStaticObjectField: new ctypes.FunctionType(ctypes.default_abi,
jobject,
[jenvptr, jclass,
jfieldid]).ptr},
{GetStaticBooleanField: new ctypes.FunctionType(ctypes.default_abi,
jboolean,
[jenvptr, jclass,
jfieldid]).ptr},
{GetStaticByteField: new ctypes.FunctionType(ctypes.default_abi,
jbyte,
[jenvptr, jclass,
jfieldid]).ptr},
{GetStaticCharField: new ctypes.FunctionType(ctypes.default_abi,
jchar,
[jenvptr, jclass,
jfieldid]).ptr},
{GetStaticShortField: new ctypes.FunctionType(ctypes.default_abi,
jshort,
[jenvptr, jclass,
jfieldid]).ptr},
{GetStaticIntField: new ctypes.FunctionType(ctypes.default_abi,
jint,
[jenvptr, jclass,
jfieldid]).ptr},
{GetStaticLongField: new ctypes.FunctionType(ctypes.default_abi,
jlong,
[jenvptr, jclass,
jfieldid]).ptr},
{GetStaticFloatField: new ctypes.FunctionType(ctypes.default_abi,
jfloat,
[jenvptr, jclass,
jfieldid]).ptr},
{GetStaticDoubleField: new ctypes.FunctionType(ctypes.default_abi,
jdouble,
[jenvptr, jclass,
jfieldid]).ptr},
{SetStaticObjectField: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jclass,
jfieldid, jobject]).ptr},
{SetStaticBooleanField: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jclass,
jfieldid, jboolean]).ptr},
{SetStaticByteField: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jclass,
jfieldid, jbyte]).ptr},
{SetStaticCharField: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jclass,
jfieldid, jchar]).ptr},
{SetStaticShortField: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jclass,
jfieldid, jshort]).ptr},
{SetStaticIntField: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jclass,
jfieldid, jint]).ptr},
{SetStaticLongField: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jclass,
jfieldid, jlong]).ptr},
{SetStaticFloatField: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jclass,
jfieldid, jfloat]).ptr},
{SetStaticDoubleField: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jclass,
jfieldid, jdouble]).ptr},
{NewString: new ctypes.FunctionType(ctypes.default_abi,
jstring,
[jenvptr, jchar.ptr, jsize]).ptr},
{GetStringLength: new ctypes.FunctionType(ctypes.default_abi,
jsize,
[jenvptr, jstring]).ptr},
{GetStringChars: new ctypes.FunctionType(ctypes.default_abi,
jchar.ptr,
[jenvptr, jstring,
jboolean.ptr]).ptr},
{ReleaseStringChars: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jstring,
jchar.ptr]).ptr},
{NewStringUTF: new ctypes.FunctionType(ctypes.default_abi,
jstring,
[jenvptr,
ctypes.char.ptr]).ptr},
{GetStringUTFLength: new ctypes.FunctionType(ctypes.default_abi,
jsize,
[jenvptr, jstring]).ptr},
{GetStringUTFChars: new ctypes.FunctionType(ctypes.default_abi,
ctypes.char.ptr,
[jenvptr, jstring,
jboolean.ptr]).ptr},
{ReleaseStringUTFChars: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jstring,
ctypes.char.ptr]).ptr},
{GetArrayLength: new ctypes.FunctionType(ctypes.default_abi,
jsize,
[jenvptr, jarray]).ptr},
{NewObjectArray: new ctypes.FunctionType(ctypes.default_abi,
jarray,
[jenvptr, jsize,
jclass, jobject]).ptr},
{GetObjectArrayElement: new ctypes.FunctionType(ctypes.default_abi,
jobject,
[jenvptr, jarray,
jsize]).ptr},
{SetObjectArrayElement: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jsize, jobject]).ptr},
{NewBooleanArray: new ctypes.FunctionType(ctypes.default_abi,
jarray,
[jenvptr, jsize]).ptr},
{NewByteArray: new ctypes.FunctionType(ctypes.default_abi,
jarray,
[jenvptr, jsize]).ptr},
{NewCharArray: new ctypes.FunctionType(ctypes.default_abi,
jarray,
[jenvptr, jsize]).ptr},
{NewShortArray: new ctypes.FunctionType(ctypes.default_abi,
jarray,
[jenvptr, jsize]).ptr},
{NewIntArray: new ctypes.FunctionType(ctypes.default_abi,
jarray,
[jenvptr, jsize]).ptr},
{NewLongArray: new ctypes.FunctionType(ctypes.default_abi,
jarray,
[jenvptr, jsize]).ptr},
{NewFloatArray: new ctypes.FunctionType(ctypes.default_abi,
jarray,
[jenvptr, jsize]).ptr},
{NewDoubleArray: new ctypes.FunctionType(ctypes.default_abi,
jarray,
[jenvptr, jsize]).ptr},
{GetBooleanArrayElements: new ctypes.FunctionType(ctypes.default_abi,
jboolean.ptr,
[jenvptr, jarray,
jboolean.ptr]).ptr},
{GetByteArrayElements: new ctypes.FunctionType(ctypes.default_abi,
jbyte.ptr,
[jenvptr, jarray,
jboolean.ptr]).ptr},
{GetCharArrayElements: new ctypes.FunctionType(ctypes.default_abi,
jchar.ptr,
[jenvptr, jarray,
jboolean.ptr]).ptr},
{GetShortArrayElements: new ctypes.FunctionType(ctypes.default_abi,
jshort.ptr,
[jenvptr, jarray,
jboolean.ptr]).ptr},
{GetIntArrayElements: new ctypes.FunctionType(ctypes.default_abi,
jint.ptr,
[jenvptr, jarray,
jboolean.ptr]).ptr},
{GetLongArrayElements: new ctypes.FunctionType(ctypes.default_abi,
jlong.ptr,
[jenvptr, jarray,
jboolean.ptr]).ptr},
{GetFloatArrayElements: new ctypes.FunctionType(ctypes.default_abi,
jfloat.ptr,
[jenvptr, jarray,
jboolean.ptr]).ptr},
{GetDoubleArrayElements: new ctypes.FunctionType(ctypes.default_abi,
jdouble.ptr,
[jenvptr, jarray,
jboolean.ptr]).ptr},
{ReleaseBooleanArrayElements: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jboolean.ptr,
jint]).ptr},
{ReleaseByteArrayElements: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jbyte.ptr,
jint]).ptr},
{ReleaseCharArrayElements: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jchar.ptr,
jint]).ptr},
{ReleaseShortArrayElements: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jshort.ptr,
jint]).ptr},
{ReleaseIntArrayElements: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jint.ptr,
jint]).ptr},
{ReleaseLongArrayElements: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jlong.ptr,
jint]).ptr},
{ReleaseFloatArrayElements: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jfloat.ptr,
jint]).ptr},
{ReleaseDoubleArrayElements: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jdouble.ptr,
jint]).ptr},
{GetBooleanArrayRegion: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jsize, jsize,
jboolean.array()]).ptr},
{GetByteArrayRegion: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jsize, jsize,
jbyte.array()]).ptr},
{GetCharArrayRegion: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jsize, jsize,
jchar.array()]).ptr},
{GetShortArrayRegion: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jsize, jsize,
jshort.array()]).ptr},
{GetIntArrayRegion: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jsize, jsize,
jint.array()]).ptr},
{GetLongArrayRegion: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jsize, jsize,
jlong.array()]).ptr},
{GetFloatArrayRegion: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jsize, jsize,
jfloat.array()]).ptr},
{GetDoubleArrayRegion: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jsize, jsize,
jdouble.array()]).ptr},
{SetBooleanArrayRegion: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jsize, jsize,
jboolean.array()]).ptr},
{SetByteArrayRegion: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jsize, jsize,
jbyte.array()]).ptr},
{SetCharArrayRegion: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jsize, jsize,
jchar.array()]).ptr},
{SetShortArrayRegion: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jsize, jsize,
jshort.array()]).ptr},
{SetIntArrayRegion: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jsize, jsize,
jint.array()]).ptr},
{SetLongArrayRegion: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jsize, jsize,
jlong.array()]).ptr},
{SetFloatArrayRegion: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jsize, jsize,
jfloat.array()]).ptr},
{SetDoubleArrayRegion: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jarray,
jsize, jsize,
jdouble.array()]).ptr},
{RegisterNatives: ctypes.voidptr_t},
{UnregisterNatives: ctypes.voidptr_t},
{MonitorEnter: new ctypes.FunctionType(ctypes.default_abi,
jint, [jenvptr, jobject]).ptr},
{MonitorExit: new ctypes.FunctionType(ctypes.default_abi,
jint, [jenvptr, jobject]).ptr},
{GetJavaVM: ctypes.voidptr_t},
{GetStringRegion: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jstring,
jsize, jsize,
jchar.array()]).ptr},
{GetStringUTFRegion: new ctypes.FunctionType(ctypes.default_abi,
ctypes.void_t,
[jenvptr, jstring,
jsize, jsize,
ctypes.char.array()]).ptr},
{GetPrimitiveArrayCritical: ctypes.voidptr_t},
{ReleasePrimitiveArrayCritical: ctypes.voidptr_t},
{GetStringCritical: ctypes.voidptr_t},
{ReleaseStringCritical: ctypes.voidptr_t},
{NewWeakGlobalRef: ctypes.voidptr_t},
{DeleteWeakGlobalRef: ctypes.voidptr_t},
{ExceptionCheck: new ctypes.FunctionType(ctypes.default_abi,
jboolean, [jenvptr]).ptr},
{NewDirectByteBuffer: ctypes.voidptr_t},
{GetDirectBufferAddress: ctypes.voidptr_t},
{GetDirectBufferCapacity: ctypes.voidptr_t},
{GetObjectRefType: ctypes.voidptr_t}]
);
var GetJNIForThread = libxul.declare("GetJNIForThread",
ctypes.default_abi,
JNINativeInterface.ptr.ptr);
var registry = Object.create(null);
var classes = Object.create(null);
function JNIUnloadClasses(jenv) {
Object.getOwnPropertyNames(registry).forEach(function(classname) {
var jcls = unwrap(registry[classname]);
jenv.contents.contents.DeleteGlobalRef(jenv, jcls);
// Purge the registry, so we don't try to reuse stale global references
// in JNI calls and we garbage-collect the JS global reference objects.
delete registry[classname];
});
// The refs also get added to the 'classes' object, so we should purge it too.
// That object is a hierarchical data structure organized by class path parts,
// but deleting its own properties should be sufficient to break its refs.
Object.getOwnPropertyNames(classes).forEach(function(topLevelPart) {
delete classes[topLevelPart];
});
}
var PREFIX = 'js#';
// this regex matches one component of a type signature:
// any number of array modifiers, followed by either a
// primitive type character or L<classname>;
var sigRegex = () => /\[*([VZBCSIJFD]|L([^.\/;]+(\/[^.\/;]+)*);)/g;
var ensureSig = function(classname_or_signature) {
// convert a classname into a signature,
// leaving unchanged signatures. We assume that
// anything not a valid signature is a classname.
var m = sigRegex().exec(classname_or_signature);
return (m && m[0] === classname_or_signature) ? classname_or_signature :
'L' + classname_or_signature.replace(/\./g, '/') + ';';
};
var wrap = function(obj, classSig) {
if (!classSig) { return obj; }
// don't wrap primitive types.
if (classSig.charAt(0)!=='L' &&
classSig.charAt(0)!=='[') { return obj; }
var proto = registry[classSig][PREFIX+'proto'];
return new proto(obj);
};
var unwrap = function(obj, opt_jenv, opt_ctype) {
if (obj && typeof(obj)==='object' && (PREFIX+'obj') in obj) {
return obj[PREFIX+'obj'];
} else if (opt_jenv && opt_ctype) {
if (opt_ctype !== jobject)
return opt_ctype(obj); // cast to given primitive ctype
if (typeof(obj)==='string')
return unwrap(JNINewString(opt_jenv, obj)); // create Java String
}
return obj;
};
var ensureLoaded = function(jenv, classSig) {
if (!Object.hasOwnProperty.call(registry, classSig)) {
JNILoadClass(jenv, classSig);
}
return registry[classSig];
};
function JNINewString(jenv, value) {
var s = jenv.contents.contents.NewStringUTF(jenv, ctypes.char.array()(value));
ensureLoaded(jenv, "Ljava/lang/String;");
return wrap(s, "Ljava/lang/String;");
}
function JNIReadString(jenv, jstring_value) {
var val = unwrap(jstring_value);
if ((!val) || val.isNull()) { return null; }
var chars = jenv.contents.contents.GetStringUTFChars(jenv, val, null);
var result = chars.readString();
jenv.contents.contents.ReleaseStringUTFChars(jenv, val, chars);
return result;
}
var sigInfo = {
'V': { name: 'Void', longName: 'Void', ctype: ctypes.void_t },
'Z': { name: 'Boolean', longName: 'Boolean', ctype: jboolean },
'B': { name: 'Byte', longName: 'Byte', ctype: jbyte },
'C': { name: 'Char', longName: 'Char', ctype: jchar },
'S': { name: 'Short', longName: 'Short', ctype: jshort },
'I': { name: 'Int', longName: 'Integer', ctype: jint },
'J': { name: 'Long', longName: 'Long', ctype: jlong },
'F': { name: 'Float', longName: 'Float', ctype: jfloat },
'D': { name: 'Double', longName: 'Double', ctype: jdouble },
'L': { name: 'Object', longName: 'Object', ctype: jobject },
'[': { name: 'Object', longName: 'Object', ctype: jarray }
};
var sig2type = function(sig) { return sigInfo[sig.charAt(0)].name; };
var sig2ctype = function(sig) { return sigInfo[sig.charAt(0)].ctype; };
var sig2prim = function(sig) { return sigInfo[sig.charAt(0)].longName; };
// return the class object for a signature string.
// allocates 1 or 2 local refs
function JNIClassObj(jenv, classSig) {
var jenvpp = function() { return jenv.contents.contents; };
// Deal with funny calling convention of JNI FindClass method.
// Classes get the leading & trailing chars stripped; primitives
// have to be looked up via their wrapper type.
var prim = function(ty) {
var jcls = jenvpp().FindClass(jenv, "java/lang/"+ty);
var jfld = jenvpp().GetStaticFieldID(jenv, jcls, "TYPE",
"Ljava/lang/Class;");
return jenvpp().GetStaticObjectField(jenv, jcls, jfld);
};
switch (classSig.charAt(0)) {
case '[':
return jenvpp().FindClass(jenv, classSig);
case 'L':
classSig = classSig.substring(1, classSig.indexOf(';'));
return jenvpp().FindClass(jenv, classSig);
default:
return prim(sig2prim(classSig));
}
}
// return the signature string for a Class object.
// allocates 2 local refs
function JNIClassSig(jenv, jcls) {
var jenvpp = function() { return jenv.contents.contents; };
var jclscls = jenvpp().FindClass(jenv, "java/lang/Class");
var jmtd = jenvpp().GetMethodID(jenv, jclscls,
"getName", "()Ljava/lang/String;");
var name = jenvpp().CallObjectMethod(jenv, jcls, jmtd);
name = JNIReadString(jenv, name);
// API is weird. Make sure we're using slashes not dots
name = name.replace(/\./g, '/');
// special case primitives, arrays
if (name.charAt(0)==='[') return name;
switch(name) {
case 'void': return 'V';
case 'boolean': return 'Z';
case 'byte': return 'B';
case 'char': return 'C';
case 'short': return 'S';
case 'int': return 'I';
case 'long': return 'J';
case 'float': return 'F';
case 'double': return 'D';
default:
return 'L' + name + ';';
}
}
// create dispatch method
// we resolve overloaded methods only by # of arguments. If you need
// further resolution, use the 'long form' of the method name, ie:
// obj['toString()Ljava/lang/String'].call(obj);
var overloadFunc = function(basename) {
return function() {
return this[basename+'('+arguments.length+')'].apply(this, arguments);
};
};
// Create appropriate wrapper fields/methods for a Java class.
function JNILoadClass(jenv, classSig, opt_props) {
var jenvpp = function() { return jenv.contents.contents; };
var props = opt_props || {};
// allocate a local reference frame with enough space
// this class (1 or 2 local refs) plus superclass (3 refs)
// plus array element class (1 or 2 local refs)
var numLocals = 7;
jenvpp().PushLocalFrame(jenv, numLocals);
var jcls;
if (Object.hasOwnProperty.call(registry, classSig)) {
jcls = unwrap(registry[classSig]);
} else {
jcls = jenvpp().NewGlobalRef(jenv, JNIClassObj(jenv, classSig));
// get name of superclass
var jsuper = jenvpp().GetSuperclass(jenv, jcls);
if (jsuper.isNull()) {
jsuper = null;
} else {
jsuper = JNIClassSig(jenv, jsuper);
}
registry[classSig] = Object.create(jsuper?ensureLoaded(jenv, jsuper):null);
registry[classSig][PREFIX+'obj'] = jcls; // global ref, persistent.
registry[classSig][PREFIX+'proto'] =
function(o) { this[PREFIX+'obj'] = o; };
registry[classSig][PREFIX+'proto'].prototype =
Object.create(jsuper ?
ensureLoaded(jenv, jsuper)[PREFIX+'proto'].prototype :
null);
// Add a __cast__ method to the wrapper corresponding to the class
registry[classSig].__cast__ = function(obj) {
return wrap(unwrap(obj), classSig);
};
// make wrapper accessible via the classes object.
var path = sig2type(classSig).toLowerCase();
if (classSig.charAt(0)==='L') {
path = classSig.substring(1, classSig.length-1);
}
if (classSig.charAt(0)!=='[') {
var root = classes, i;
var parts = path.split('/');
for (i = 0; i < parts.length-1; i++) {
if (!Object.hasOwnProperty.call(root, parts[i])) {
root[parts[i]] = Object.create(null);
}
root = root[parts[i]];
}
root[parts[parts.length-1]] = registry[classSig];
}
}
var r = registry[classSig];
var rpp = r[PREFIX+'proto'].prototype;
if (classSig.charAt(0)==='[') {
// add 'length' field for arrays
Object.defineProperty(rpp, 'length', {
get: function() {
return jenvpp().GetArrayLength(jenv, unwrap(this));
}
});
// add 'get' and 'set' methods, 'new' constructor
var elemSig = classSig.substring(1);
ensureLoaded(jenv, elemSig);
registry[elemSig].__array__ = r;
if (!Object.hasOwnProperty.call(registry[elemSig], 'array'))
registry[elemSig].array = r;
if (elemSig.charAt(0)==='L' || elemSig.charAt(0)==='[') {
var elemClass = unwrap(registry[elemSig]);
rpp.get = function(idx) {
return wrap(jenvpp().GetObjectArrayElement(jenv, unwrap(this), idx),
elemSig);
};
rpp.set = function(idx, value) {
jenvpp().SetObjectArrayElement(jenv, unwrap(this), idx,
unwrap(value, jenv, jobject));
};
rpp.getElements = function(start, len) {
var i, r=[];
for (i=0; i<len; i++) { r.push(this.get(start+i)); }
return r;
};
rpp.setElements = function(start, vals) {
vals.forEach(function(v, i) { this.set(start+i, v); }.bind(this));
};
r['new'] = function(length) {
return wrap(jenvpp().NewObjectArray(jenv, length, elemClass, null),
classSig);
};
} else {
var ty = sig2type(elemSig), ctype = sig2ctype(elemSig);
var constructor = "New"+ty+"Array";
var getter = "Get"+ty+"ArrayRegion";
var setter = "Set"+ty+"ArrayRegion";
rpp.get = function(idx) { return this.getElements(idx, 1)[0]; };
rpp.set = function(idx, val) { this.setElements(idx, [val]); };
rpp.getElements = function(start, len) {
var j = jenvpp();
var buf = new (ctype.array())(len);
j[getter].call(j, jenv, unwrap(this), start, len, buf);
return buf;
};
rpp.setElements = function(start, vals) {
var j = jenvpp();
j[setter].call(j, jenv, unwrap(this), start, vals.length,
ctype.array()(vals));
};
r['new'] = function(length) {
var j = jenvpp();
return wrap(j[constructor].call(j, jenv, length), classSig);
};
}
}
(props.static_fields || []).forEach(function(fld) {
var jfld = jenvpp().GetStaticFieldID(jenv, jcls, fld.name, fld.sig);
var ty = sig2type(fld.sig), nm = fld.sig;
var getter = "GetStatic"+ty+"Field", setter = "SetStatic"+ty+"Field";
ensureLoaded(jenv, nm);
var props = {
get: function() {
var j = jenvpp();
return wrap(j[getter].call(j, jenv, jcls, jfld), nm);
},
set: function(newValue) {
var j = jenvpp();
j[setter].call(j, jenv, jcls, jfld, unwrap(newValue));
}
};
Object.defineProperty(r, fld.name, props);
// add static fields to object instances, too.
Object.defineProperty(rpp, fld.name, props);
});
(props.static_methods || []).forEach(function(mtd) {
var jmtd = jenvpp().GetStaticMethodID(jenv, jcls, mtd.name, mtd.sig);
var argctypes = mtd.sig.match(sigRegex()).map(s => sig2ctype(s));
var returnSig = mtd.sig.substring(mtd.sig.indexOf(')')+1);
var ty = sig2type(returnSig), nm = returnSig;
var call = "CallStatic"+ty+"Method";
ensureLoaded(jenv, nm);
r[mtd.name] = rpp[mtd.name] = overloadFunc(mtd.name);
r[mtd.name + mtd.sig] = r[mtd.name+'('+(argctypes.length-1)+')'] =
// add static methods to object instances, too.
rpp[mtd.name + mtd.sig] = rpp[mtd.name+'('+(argctypes.length-1)+')'] = function() {
var i, j = jenvpp();
var args = [jenv, jcls, jmtd];
for (i=0; i<arguments.length; i++) {
args.push(unwrap(arguments[i], jenv, argctypes[i]));
}
return wrap(j[call].apply(j, args), nm);
};
});
(props.constructors || []).forEach(function(mtd) {
mtd.name = "<init>";
var jmtd = jenvpp().GetMethodID(jenv, jcls, mtd.name, mtd.sig);
var argctypes = mtd.sig.match(sigRegex()).map(s => sig2ctype(s));
var returnSig = mtd.sig.substring(mtd.sig.indexOf(')')+1);
r['new'] = overloadFunc('new');
r['new'+mtd.sig] = r['new('+(argctypes.length-1)+')'] = function() {
var i, j = jenvpp();
var args = [jenv, jcls, jmtd];
for (i=0; i<arguments.length; i++) {
args.push(unwrap(arguments[i], jenv, argctypes[i]));
}
return wrap(j.NewObject.apply(j, args), classSig);
};
});
(props.fields || []).forEach(function(fld) {
var jfld = jenvpp().GetFieldID(jenv, jcls, fld.name, fld.sig);
var ty = sig2type(fld.sig), nm = fld.sig;
var getter = "Get"+ty+"Field", setter = "Set"+ty+"Field";
ensureLoaded(jenv, nm);
Object.defineProperty(rpp, fld.name, {
get: function() {
var j = jenvpp();
return wrap(j[getter].call(j, jenv, unwrap(this), jfld), nm);
},
set: function(newValue) {
var j = jenvpp();
j[setter].call(j, jenv, unwrap(this), jfld, unwrap(newValue));
}
});
});
(props.methods || []).forEach(function(mtd) {
var jmtd = jenvpp().GetMethodID(jenv, jcls, mtd.name, mtd.sig);
var argctypes = mtd.sig.match(sigRegex()).map(s => sig2ctype(s));
var returnSig = mtd.sig.substring(mtd.sig.indexOf(')')+1);
var ty = sig2type(returnSig), nm = returnSig;
var call = "Call"+ty+"Method";
ensureLoaded(jenv, nm);
rpp[mtd.name] = overloadFunc(mtd.name);
rpp[mtd.name + mtd.sig] = rpp[mtd.name+'('+(argctypes.length-1)+')'] = function() {
var i, j = jenvpp();
var args = [jenv, unwrap(this), jmtd];
for (i=0; i<arguments.length; i++) {
args.push(unwrap(arguments[i], jenv, argctypes[i]));
}
return wrap(j[call].apply(j, args), nm);
};
});
jenvpp().PopLocalFrame(jenv, null);
return r;
}
// exported object
var JNI = {
// primitive types
jboolean: jboolean,
jbyte: jbyte,
jchar: jchar,
jshort: jshort,
jint: jint,
jlong: jlong,
jfloat: jfloat,
jdouble: jdouble,
jsize: jsize,
// class registry
classes: classes,
// methods
GetForThread: GetJNIForThread,
NewString: JNINewString,
ReadString: JNIReadString,
LoadClass: function(jenv, classname_or_signature, props) {
return JNILoadClass(jenv, ensureSig(classname_or_signature), props);
},
UnloadClasses: JNIUnloadClasses
};