gecko-dev/widget/android/AndroidJNIWrapper.cpp

133 lines
3.8 KiB
C++

/* -*- Mode: c++; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/Util.h"
#include <android/log.h>
#include <dlfcn.h>
#include <prthread.h>
#include "mozilla/DebugOnly.h"
#include "mozilla/Assertions.h"
#include "nsThreadUtils.h"
#include "AndroidBridge.h"
#ifdef DEBUG
#define ALOG_BRIDGE(args...) ALOG(args)
#else
#define ALOG_BRIDGE(args...)
#endif
extern "C" {
jclass __jsjni_GetGlobalClassRef(const char *className);
}
class GetGlobalClassRefRunnable : public nsRunnable {
public:
GetGlobalClassRefRunnable(const char *className, jclass *foundClass) :
mClassName(className), mResult(foundClass) {}
NS_IMETHOD Run() {
*mResult = __jsjni_GetGlobalClassRef(mClassName);
return NS_OK;
}
private:
const char *mClassName;
jclass *mResult;
};
extern "C" {
__attribute__ ((visibility("default")))
jclass
jsjni_FindClass(const char *className) {
// FindClass outside the main thread will run into problems due
// to missing the classpath
MOZ_ASSERT(NS_IsMainThread());
JNIEnv *env = mozilla::AndroidBridge::GetJNIEnv();
if (!env) return nullptr;
return env->FindClass(className);
}
jclass
__jsjni_GetGlobalClassRef(const char *className) {
// root class globally
JNIEnv *env = mozilla::AndroidBridge::GetJNIEnv();
jclass globalRef = static_cast<jclass>(env->NewGlobalRef(env->FindClass(className)));
if (!globalRef)
return nullptr;
// return the newly create global reference
return globalRef;
}
__attribute__ ((visibility("default")))
jclass
jsjni_GetGlobalClassRef(const char *className) {
nsCOMPtr<nsIThread> mainThread;
mozilla::DebugOnly<nsresult> rv = NS_GetMainThread(getter_AddRefs(mainThread));
MOZ_ASSERT(NS_SUCCEEDED(rv));
jclass foundClass;
nsRefPtr<nsIRunnable> runnable_ref(new GetGlobalClassRefRunnable(className,
&foundClass));
mainThread->Dispatch(runnable_ref, NS_DISPATCH_SYNC);
if (!foundClass)
return nullptr;
return foundClass;
}
__attribute__ ((visibility("default")))
jmethodID
jsjni_GetStaticMethodID(jclass methodClass,
const char *methodName,
const char *signature) {
JNIEnv *env = mozilla::AndroidBridge::GetJNIEnv();
if (!env) return nullptr;
return env->GetStaticMethodID(methodClass, methodName, signature);
}
__attribute__ ((visibility("default")))
bool
jsjni_ExceptionCheck() {
JNIEnv *env = mozilla::AndroidBridge::GetJNIEnv();
if (!env) return nullptr;
return env->ExceptionCheck();
}
__attribute__ ((visibility("default")))
void
jsjni_CallStaticVoidMethodA(jclass cls,
jmethodID method,
jvalue *values) {
JNIEnv *env = mozilla::AndroidBridge::GetJNIEnv();
if (!env) return;
mozilla::AutoLocalJNIFrame jniFrame(env);
env->CallStaticVoidMethodA(cls, method, values);
}
__attribute__ ((visibility("default")))
int
jsjni_CallStaticIntMethodA(jclass cls,
jmethodID method,
jvalue *values) {
JNIEnv *env = mozilla::AndroidBridge::GetJNIEnv();
if (!env) return -1;
mozilla::AutoLocalJNIFrame jniFrame(env);
return env->CallStaticIntMethodA(cls, method, values);
}
__attribute__ ((visibility("default")))
jobject jsjni_GetGlobalContextRef() {
return mozilla::AndroidBridge::Bridge()->GetGlobalContextRef();
}
__attribute__ ((visibility("default")))
JavaVM* jsjni_GetVM() {
return mozilla::AndroidBridge::GetVM();
}
}