| // Copyright 2018 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 "ui/base/idle/idle.h" |
| |
| #include "base/android/jni_string.h" |
| #include "base/android/scoped_java_ref.h" |
| #include "base/logging.h" |
| #include "base/memory/singleton.h" |
| #include "jni/IdleDetector_jni.h" |
| |
| using base::android::AttachCurrentThread; |
| using base::android::ConvertJavaStringToUTF8; |
| using base::android::ScopedJavaLocalRef; |
| |
| namespace ui { |
| |
| namespace { |
| |
| class AndroidIdleMonitor { |
| public: |
| AndroidIdleMonitor() { |
| JNIEnv* env = AttachCurrentThread(); |
| j_idle_manager_.Reset(Java_IdleDetector_create(env)); |
| } |
| |
| ~AndroidIdleMonitor() {} |
| |
| static AndroidIdleMonitor* GetInstance() { |
| // This class is constructed a single time whenever the |
| // first web page using the User Idle Detection API |
| // starts monitoring the idle state. |
| // |
| // Upon construction, a java object is instantiated and |
| // the Android broadcast receivers are registered to listen |
| // to the OS events. |
| // |
| // The singleton only gets destroyed when the browser exists, |
| // so the broadcast receivers never get unregistered. The |
| // events are rare and we respond very quickly to them. |
| // |
| // In addition to that, Android kills chrome regularly, so |
| // in practice the lifetime is reasonably scoped. |
| // |
| // This approach is consistent with the implementation on |
| // Macs. |
| return base::Singleton<AndroidIdleMonitor>::get(); |
| } |
| |
| int CalculateIdleTime() { |
| JNIEnv* env = AttachCurrentThread(); |
| jlong result = Java_IdleDetector_getIdleTime(env, j_idle_manager_); |
| return result; |
| } |
| |
| bool CheckIdleStateIsLocked() { |
| JNIEnv* env = AttachCurrentThread(); |
| jboolean result = Java_IdleDetector_isScreenLocked(env, j_idle_manager_); |
| return result; |
| } |
| |
| private: |
| base::android::ScopedJavaGlobalRef<jobject> j_idle_manager_; |
| }; |
| |
| } // namespace |
| |
| int CalculateIdleTime() { |
| return AndroidIdleMonitor::GetInstance()->CalculateIdleTime(); |
| } |
| |
| bool CheckIdleStateIsLocked() { |
| return AndroidIdleMonitor::GetInstance()->CheckIdleStateIsLocked(); |
| } |
| |
| IdleState CalculateIdleState(int idle_threshold) { |
| // TODO(crbug.com/878979): implementation pending. |
| NOTIMPLEMENTED(); |
| return IdleState::IDLE_STATE_UNKNOWN; |
| } |
| |
| } // namespace ui |