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// Copyright 2018 The Chromium Authors
// 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/memory/singleton.h"
#include "base/notreached.h"
#include "ui/base/idle/idle_internal.h"
// Must come after all headers that specialize FromJniType() / ToJniType().
#include "ui/base/ui_base_jni_headers/IdleDetector_jni.h"
using base::android::ConvertJavaStringToUTF8;
using base::android::ScopedJavaLocalRef;
using jni_zero::AttachCurrentThread;
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() {
if (IdleStateForTesting().has_value())
return IdleStateForTesting().value() == IDLE_STATE_LOCKED;
return AndroidIdleMonitor::GetInstance()->CheckIdleStateIsLocked();
}
IdleState CalculateIdleState(int idle_threshold) {
// TODO(crbug.com/40591477): implementation pending.
NOTIMPLEMENTED();
return IdleState::IDLE_STATE_UNKNOWN;
}
} // namespace ui
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