| // 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_); |
| } |