67 lines
1.8 KiB
C++
67 lines
1.8 KiB
C++
|
// Copyright 2013 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/activity_status.h"
|
||
|
|
|
||
|
|
#include <jni.h>
|
||
|
|
|
||
|
|
#include "base/memory/singleton.h"
|
||
|
|
#include "jni/ActivityStatus_jni.h"
|
||
|
|
|
||
|
|
namespace base {
|
||
|
|
namespace android {
|
||
|
|
|
||
|
|
ActivityStatus::Listener::Listener(
|
||
|
|
const ActivityStatus::StateChangeCallback& callback)
|
||
|
|
: callback_(callback) {
|
||
|
|
ActivityStatus::GetInstance()->RegisterListener(this);
|
||
|
|
}
|
||
|
|
|
||
|
|
ActivityStatus::Listener::~Listener() {
|
||
|
|
ActivityStatus::GetInstance()->UnregisterListener(this);
|
||
|
|
}
|
||
|
|
|
||
|
|
void ActivityStatus::Listener::Notify(ActivityState state) {
|
||
|
|
callback_.Run(state);
|
||
|
|
}
|
||
|
|
|
||
|
|
// static
|
||
|
|
ActivityStatus* ActivityStatus::GetInstance() {
|
||
|
|
return Singleton<ActivityStatus,
|
||
|
|
LeakySingletonTraits<ActivityStatus> >::get();
|
||
|
|
}
|
||
|
|
|
||
|
|
static void OnActivityStateChange(JNIEnv* env, jclass clazz, int new_state) {
|
||
|
|
ActivityStatus* activity_status = ActivityStatus::GetInstance();
|
||
|
|
ActivityState activity_state = static_cast<ActivityState>(new_state);
|
||
|
|
activity_status->OnActivityStateChange(activity_state);
|
||
|
|
}
|
||
|
|
|
||
|
|
bool ActivityStatus::RegisterBindings(JNIEnv* env) {
|
||
|
|
return RegisterNativesImpl(env);
|
||
|
|
}
|
||
|
|
|
||
|
|
ActivityStatus::ActivityStatus()
|
||
|
|
: observers_(new ObserverListThreadSafe<Listener>()) {
|
||
|
|
Java_ActivityStatus_registerThreadSafeNativeStateListener(
|
||
|
|
base::android::AttachCurrentThread());
|
||
|
|
}
|
||
|
|
|
||
|
|
ActivityStatus::~ActivityStatus() {}
|
||
|
|
|
||
|
|
void ActivityStatus::RegisterListener(Listener* listener) {
|
||
|
|
observers_->AddObserver(listener);
|
||
|
|
}
|
||
|
|
|
||
|
|
void ActivityStatus::UnregisterListener(Listener* listener) {
|
||
|
|
observers_->RemoveObserver(listener);
|
||
|
|
}
|
||
|
|
|
||
|
|
void ActivityStatus::OnActivityStateChange(ActivityState new_state) {
|
||
|
|
observers_->Notify(&ActivityStatus::Listener::Notify, new_state);
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace android
|
||
|
|
} // namespace base
|