blob: c0833c9c1cd5b687e8e7bde8cbab7e172f7fde60 [file] [log] [blame]
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/android/jni_helper.h"
#include "base/android/jni_android.h"
#include "base/logging.h"
using base::android::AttachCurrentThread;
JavaObjectWeakGlobalRef::JavaObjectWeakGlobalRef()
: obj_(NULL) {
}
JavaObjectWeakGlobalRef::JavaObjectWeakGlobalRef(
const JavaObjectWeakGlobalRef& orig) {
Assign(orig);
}
JavaObjectWeakGlobalRef::JavaObjectWeakGlobalRef(JNIEnv* env, jobject obj)
: obj_(env->NewWeakGlobalRef(obj)) {
DCHECK(obj_);
}
JavaObjectWeakGlobalRef::~JavaObjectWeakGlobalRef() {
reset();
}
void JavaObjectWeakGlobalRef::operator=(const JavaObjectWeakGlobalRef& rhs) {
Assign(rhs);
}
void JavaObjectWeakGlobalRef::reset() {
if (obj_) {
AttachCurrentThread()->DeleteWeakGlobalRef(obj_);
obj_ = NULL;
}
}
base::android::ScopedJavaLocalRef<jobject>
JavaObjectWeakGlobalRef::get(JNIEnv* env) const {
return GetRealObject(env, obj_);
}
base::android::ScopedJavaLocalRef<jobject> GetRealObject(
JNIEnv* env, jweak obj) {
jobject real = NULL;
if (obj) {
real = env->NewLocalRef(obj);
if (!real)
DLOG(ERROR) << "The real object has been deleted!";
}
return base::android::ScopedJavaLocalRef<jobject>(env, real);
}
void JavaObjectWeakGlobalRef::Assign(const JavaObjectWeakGlobalRef& other) {
JNIEnv* env = AttachCurrentThread();
obj_ = env->NewWeakGlobalRef(other.obj_);
}