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// Copyright 2014 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 "config.h"
#include "modules/device_light/DeviceLightController.h"
#include "core/dom/Document.h"
#include "modules/EventModules.h"
#include "modules/device_light/DeviceLightDispatcher.h"
#include "modules/device_light/DeviceLightEvent.h"
#include "platform/RuntimeEnabledFeatures.h"
namespace blink {
DeviceLightController::DeviceLightController(Document& document)
: DeviceSingleWindowEventController(document)
{
}
DeviceLightController::~DeviceLightController()
{
#if !ENABLE(OILPAN)
stopUpdating();
#endif
}
const char* DeviceLightController::supplementName()
{
return "DeviceLightController";
}
DeviceLightController& DeviceLightController::from(Document& document)
{
DeviceLightController* controller = static_cast<DeviceLightController*>(DocumentSupplement::from(document, supplementName()));
if (!controller) {
controller = new DeviceLightController(document);
DocumentSupplement::provideTo(document, supplementName(), adoptPtrWillBeNoop(controller));
}
return *controller;
}
bool DeviceLightController::hasLastData()
{
return DeviceLightDispatcher::instance().latestDeviceLightData() >= 0;
}
void DeviceLightController::registerWithDispatcher()
{
DeviceLightDispatcher::instance().addController(this);
}
void DeviceLightController::unregisterWithDispatcher()
{
DeviceLightDispatcher::instance().removeController(this);
}
PassRefPtrWillBeRawPtr<Event> DeviceLightController::lastEvent() const
{
return DeviceLightEvent::create(EventTypeNames::devicelight,
DeviceLightDispatcher::instance().latestDeviceLightData());
}
bool DeviceLightController::isNullEvent(Event* event) const
{
DeviceLightEvent* lightEvent = toDeviceLightEvent(event);
return lightEvent->value() == std::numeric_limits<double>::infinity();
}
const AtomicString& DeviceLightController::eventTypeName() const
{
return EventTypeNames::devicelight;
}
void DeviceLightController::trace(Visitor* visitor)
{
DeviceSingleWindowEventController::trace(visitor);
DocumentSupplement::trace(visitor);
}
} // namespace blink
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