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/*
* Copyright (C) 2012 Samsung Electronics
* Copyright (C) 2012 Google Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "BatteryController.h"
#if ENABLE(BATTERY_STATUS)
#include "BatteryClient.h"
#include "BatteryStatus.h"
#include "Event.h"
namespace WebCore {
BatteryController::BatteryController(BatteryClient* client)
: m_client(client)
{
ASSERT(m_client);
}
BatteryController::~BatteryController()
{
for (ListenerVector::iterator it = m_listeners.begin(); it != m_listeners.end(); ++it)
(*it)->batteryControllerDestroyed();
m_client->batteryControllerDestroyed();
}
PassOwnPtr<BatteryController> BatteryController::create(BatteryClient* client)
{
return adoptPtr(new BatteryController(client));
}
void BatteryController::addListener(BatteryManager* batteryManager)
{
m_listeners.append(batteryManager);
m_client->startUpdating();
if (m_batteryStatus)
batteryManager->updateBatteryStatus(m_batteryStatus);
}
void BatteryController::removeListener(BatteryManager* batteryManager)
{
size_t pos = m_listeners.find(batteryManager);
if (pos == WTF::notFound)
return;
m_listeners.remove(pos);
if (m_listeners.isEmpty())
m_client->stopUpdating();
}
void BatteryController::updateBatteryStatus(PassRefPtr<BatteryStatus> batteryStatus)
{
RefPtr<BatteryStatus> status = batteryStatus;
if (m_batteryStatus) {
if (m_batteryStatus->charging() != status->charging())
didChangeBatteryStatus(WebCore::eventNames().chargingchangeEvent, status);
else if (status->charging() && m_batteryStatus->chargingTime() != status->chargingTime())
didChangeBatteryStatus(WebCore::eventNames().chargingtimechangeEvent, status);
else if (!status->charging() && m_batteryStatus->dischargingTime() != status->dischargingTime())
didChangeBatteryStatus(WebCore::eventNames().dischargingtimechangeEvent, status);
if (m_batteryStatus->level() != status->level())
didChangeBatteryStatus(WebCore::eventNames().levelchangeEvent, status);
} else {
for (ListenerVector::iterator it = m_listeners.begin(); it != m_listeners.end(); ++it)
(*it)->updateBatteryStatus(status);
}
m_batteryStatus = status.release();
}
void BatteryController::didChangeBatteryStatus(const AtomicString& eventType, PassRefPtr<BatteryStatus> batteryStatus)
{
RefPtr<Event> event = Event::create(eventType, false, false);
RefPtr<BatteryStatus> battery = batteryStatus;
for (ListenerVector::iterator it = m_listeners.begin(); it != m_listeners.end(); ++it)
(*it)->didChangeBatteryStatus(event, battery);
}
const char* BatteryController::supplementName()
{
return "BatteryController";
}
bool BatteryController::isActive(Page* page)
{
return static_cast<bool>(BatteryController::from(page));
}
void provideBatteryTo(Page* page, BatteryClient* client)
{
Supplement<Page>::provideTo(page, BatteryController::supplementName(), BatteryController::create(client));
}
}
#endif // BATTERY_STATUS
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