This source file includes following definitions.
- DOMWindowLifecycleObserver
- didChangeDeviceMotion
- supplementName
- from
- hasLastData
- getLastEvent
- registerWithDispatcher
- unregisterWithDispatcher
- isNullEvent
- didAddEventListener
- didRemoveEventListener
- didRemoveAllEventListeners
#include "config.h"
#include "modules/device_orientation/DeviceMotionController.h"
#include "RuntimeEnabledFeatures.h"
#include "core/dom/Document.h"
#include "core/page/Page.h"
#include "modules/device_orientation/DeviceMotionData.h"
#include "modules/device_orientation/DeviceMotionDispatcher.h"
#include "modules/device_orientation/DeviceMotionEvent.h"
namespace WebCore {
DeviceMotionController::DeviceMotionController(Document& document)
: DeviceSensorEventController(document)
, DOMWindowLifecycleObserver(document.domWindow())
{
}
DeviceMotionController::~DeviceMotionController()
{
stopUpdating();
}
void DeviceMotionController::didChangeDeviceMotion(DeviceMotionData* deviceMotionData)
{
dispatchDeviceEvent(DeviceMotionEvent::create(EventTypeNames::devicemotion, deviceMotionData));
}
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(), adoptPtr(controller));
}
return *controller;
}
bool DeviceMotionController::hasLastData()
{
return DeviceMotionDispatcher::instance().latestDeviceMotionData();
}
PassRefPtrWillBeRawPtr<Event> DeviceMotionController::getLastEvent()
{
return DeviceMotionEvent::create(EventTypeNames::devicemotion, DeviceMotionDispatcher::instance().latestDeviceMotionData());
}
void DeviceMotionController::registerWithDispatcher()
{
DeviceMotionDispatcher::instance().addDeviceMotionController(this);
}
void DeviceMotionController::unregisterWithDispatcher()
{
DeviceMotionDispatcher::instance().removeDeviceMotionController(this);
}
bool DeviceMotionController::isNullEvent(Event* event)
{
DeviceMotionEvent* motionEvent = toDeviceMotionEvent(event);
return !motionEvent->deviceMotionData()->canProvideEventData();
}
void DeviceMotionController::didAddEventListener(DOMWindow*, const AtomicString& eventType)
{
if (eventType == EventTypeNames::devicemotion && RuntimeEnabledFeatures::deviceMotionEnabled()) {
if (page() && page()->visibilityState() == PageVisibilityStateVisible)
startUpdating();
m_hasEventListener = true;
}
}
void DeviceMotionController::didRemoveEventListener(DOMWindow*, const AtomicString& eventType)
{
if (eventType == EventTypeNames::devicemotion) {
stopUpdating();
m_hasEventListener = false;
}
}
void DeviceMotionController::didRemoveAllEventListeners(DOMWindow*)
{
stopUpdating();
m_hasEventListener = false;
}
}