BatteryManager.cpp [plain text]
#include "config.h"
#include "BatteryManager.h"
#if ENABLE(BATTERY_STATUS)
#include "BatteryController.h"
#include "BatteryStatus.h"
#include "Document.h"
#include "Event.h"
#include "Frame.h"
#include "Navigator.h"
#include <limits>
namespace WebCore {
PassRefPtr<BatteryManager> BatteryManager::create(Navigator* navigator)
{
RefPtr<BatteryManager> batteryManager(adoptRef(new BatteryManager(navigator)));
batteryManager->suspendIfNeeded();
return batteryManager.release();
}
BatteryManager::~BatteryManager()
{
}
BatteryManager::BatteryManager(Navigator* navigator)
: ActiveDOMObject(navigator->frame()->document())
, m_batteryController(BatteryController::from(navigator->frame()->page()))
, m_batteryStatus(0)
{
m_batteryController->addListener(this);
}
bool BatteryManager::charging()
{
return m_batteryStatus ? m_batteryStatus->charging() : true;
}
double BatteryManager::chargingTime()
{
if (!m_batteryStatus || !m_batteryStatus->charging())
return std::numeric_limits<double>::infinity();
return m_batteryStatus->chargingTime();
}
double BatteryManager::dischargingTime()
{
if (!m_batteryStatus || m_batteryStatus->charging())
return std::numeric_limits<double>::infinity();
return m_batteryStatus->dischargingTime();
}
double BatteryManager::level()
{
return m_batteryStatus ? m_batteryStatus->level() : 1;
}
void BatteryManager::didChangeBatteryStatus(PassRefPtr<Event> event, PassRefPtr<BatteryStatus> batteryStatus)
{
updateBatteryStatus(batteryStatus);
dispatchEvent(event);
}
void BatteryManager::updateBatteryStatus(PassRefPtr<BatteryStatus> batteryStatus)
{
m_batteryStatus = batteryStatus;
}
void BatteryManager::suspend(ReasonForSuspension)
{
if (m_batteryController)
m_batteryController->removeListener(this);
}
void BatteryManager::resume()
{
if (m_batteryController)
m_batteryController->addListener(this);
}
void BatteryManager::stop()
{
if (m_batteryController)
m_batteryController->removeListener(this);
}
}
#endif // BATTERY_STATUS