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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_orientation/DeviceMotionController.h"
#include "core/dom/Document.h"
#include "modules/EventModules.h"
#include "modules/device_orientation/DeviceMotionData.h"
#include "modules/device_orientation/DeviceMotionDispatcher.h"
#include "modules/device_orientation/DeviceMotionEvent.h"
namespace blink {
DeviceMotionController::DeviceMotionController(Document& document)
: DeviceSingleWindowEventController(document)
{
}
DeviceMotionController::~DeviceMotionController()
{
#if !ENABLE(OILPAN)
stopUpdating();
#endif
}
const char* DeviceMotionController::supplementName()
{
return "DeviceMotionController";
}
DeviceMotionController& DeviceMotionController::from(Document& document)
{
DeviceMotionController* controller = static_cast<DeviceMotionController*>(DocumentSupplement::from(document, supplementName()));
if (!controller) {
controller = new DeviceMotionController(document);
DocumentSupplement::provideTo(document, supplementName(), adoptPtrWillBeNoop(controller));
}
return *controller;
}
bool DeviceMotionController::hasLastData()
{
return DeviceMotionDispatcher::instance().latestDeviceMotionData();
}
void DeviceMotionController::registerWithDispatcher()
{
DeviceMotionDispatcher::instance().addController(this);
}
void DeviceMotionController::unregisterWithDispatcher()
{
DeviceMotionDispatcher::instance().removeController(this);
}
PassRefPtrWillBeRawPtr<Event> DeviceMotionController::lastEvent() const
{
return DeviceMotionEvent::create(EventTypeNames::devicemotion, DeviceMotionDispatcher::instance().latestDeviceMotionData());
}
bool DeviceMotionController::isNullEvent(Event* event) const
{
DeviceMotionEvent* motionEvent = toDeviceMotionEvent(event);
return !motionEvent->deviceMotionData()->canProvideEventData();
}
const AtomicString& DeviceMotionController::eventTypeName() const
{
return EventTypeNames::devicemotion;
}
void DeviceMotionController::trace(Visitor* visitor)
{
DeviceSingleWindowEventController::trace(visitor);
DocumentSupplement::trace(visitor);
}
} // namespace blink
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