michael@0: /* -*- Mode: c++; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include <android/log.h>
michael@0: #include <dlfcn.h>
michael@0: #include <prthread.h>
michael@0: 
michael@0: #include "mozilla/DebugOnly.h"
michael@0: #include "mozilla/Assertions.h"
michael@0: #include "nsThreadUtils.h"
michael@0: #include "AndroidBridge.h"
michael@0: 
michael@0: extern "C" {
michael@0:   jclass __jsjni_GetGlobalClassRef(const char *className);
michael@0: }
michael@0: 
michael@0: class GetGlobalClassRefRunnable : public nsRunnable {
michael@0:   public:
michael@0:     GetGlobalClassRefRunnable(const char *className, jclass *foundClass) :
michael@0:         mClassName(className), mResult(foundClass) {}
michael@0:     NS_IMETHOD Run() {
michael@0:         *mResult = __jsjni_GetGlobalClassRef(mClassName);
michael@0:         return NS_OK;
michael@0:     }
michael@0:   private:
michael@0:     const char *mClassName;
michael@0:     jclass *mResult;
michael@0: };
michael@0: 
michael@0: extern "C" {
michael@0:   __attribute__ ((visibility("default")))
michael@0:   jclass
michael@0:   jsjni_FindClass(const char *className) {
michael@0:     // FindClass outside the main thread will run into problems due
michael@0:     // to missing the classpath
michael@0:     MOZ_ASSERT(NS_IsMainThread());
michael@0:     JNIEnv *env = mozilla::AndroidBridge::GetJNIEnv();
michael@0:     return env->FindClass(className);
michael@0:   }
michael@0: 
michael@0:   jclass
michael@0:   __jsjni_GetGlobalClassRef(const char *className) {
michael@0:     // root class globally
michael@0:     JNIEnv *env = mozilla::AndroidBridge::GetJNIEnv();
michael@0:     jclass globalRef = static_cast<jclass>(env->NewGlobalRef(env->FindClass(className)));
michael@0:     if (!globalRef)
michael@0:       return nullptr;
michael@0: 
michael@0:     // return the newly create global reference
michael@0:     return globalRef;
michael@0:   }
michael@0: 
michael@0:   __attribute__ ((visibility("default")))
michael@0:   jclass
michael@0:   jsjni_GetGlobalClassRef(const char *className) {
michael@0:     nsCOMPtr<nsIThread> mainThread;
michael@0:     mozilla::DebugOnly<nsresult> rv = NS_GetMainThread(getter_AddRefs(mainThread));
michael@0:     MOZ_ASSERT(NS_SUCCEEDED(rv));
michael@0: 
michael@0:     jclass foundClass;
michael@0:     nsRefPtr<nsIRunnable> runnable_ref(new GetGlobalClassRefRunnable(className,
michael@0:                                                                      &foundClass));
michael@0:     mainThread->Dispatch(runnable_ref, NS_DISPATCH_SYNC);
michael@0:     if (!foundClass)
michael@0:       return nullptr;
michael@0: 
michael@0:     return foundClass;
michael@0:   }
michael@0: 
michael@0:   __attribute__ ((visibility("default")))
michael@0:   jmethodID
michael@0:   jsjni_GetStaticMethodID(jclass methodClass,
michael@0:                           const char *methodName,
michael@0:                           const char *signature) {
michael@0:     JNIEnv *env = mozilla::AndroidBridge::GetJNIEnv();
michael@0:     return env->GetStaticMethodID(methodClass, methodName, signature);
michael@0:   }
michael@0: 
michael@0:   __attribute__ ((visibility("default")))
michael@0:   bool
michael@0:   jsjni_ExceptionCheck() {
michael@0:     JNIEnv *env = mozilla::AndroidBridge::GetJNIEnv();
michael@0:     return env->ExceptionCheck();
michael@0:   }
michael@0: 
michael@0:   __attribute__ ((visibility("default")))
michael@0:   void
michael@0:   jsjni_CallStaticVoidMethodA(jclass cls,
michael@0:                               jmethodID method,
michael@0:                               jvalue *values) {
michael@0:     JNIEnv *env = mozilla::AndroidBridge::GetJNIEnv();
michael@0: 
michael@0:     mozilla::AutoLocalJNIFrame jniFrame(env);
michael@0:     env->CallStaticVoidMethodA(cls, method, values);
michael@0:   }
michael@0: 
michael@0:   __attribute__ ((visibility("default")))
michael@0:   int
michael@0:   jsjni_CallStaticIntMethodA(jclass cls,
michael@0:                              jmethodID method,
michael@0:                              jvalue *values) {
michael@0:     JNIEnv *env = mozilla::AndroidBridge::GetJNIEnv();
michael@0: 
michael@0:     mozilla::AutoLocalJNIFrame jniFrame(env);
michael@0:     return env->CallStaticIntMethodA(cls, method, values);
michael@0:   }
michael@0: 
michael@0:   __attribute__ ((visibility("default")))
michael@0:   jobject jsjni_GetGlobalContextRef() {
michael@0:     return mozilla::AndroidBridge::Bridge()->GetGlobalContextRef();
michael@0:   }
michael@0: 
michael@0:   __attribute__ ((visibility("default")))
michael@0:   JavaVM* jsjni_GetVM() {
michael@0:     return mozilla::AndroidBridge::GetVM();
michael@0:   }
michael@0: 
michael@0:   __attribute__ ((visibility("default")))
michael@0:   JNIEnv* jsjni_GetJNIForThread() {
michael@0:     return GetJNIForThread();
michael@0:   }
michael@0: }