GeolocationController.cpp [plain text]
#include "config.h"
#include "GeolocationController.h"
#if ENABLE(GEOLOCATION)
#include "GeolocationClient.h"
#include "GeolocationError.h"
#include "GeolocationPosition.h"
namespace WebCore {
GeolocationController::GeolocationController(Page& page, GeolocationClient& client)
: m_page(page)
, m_client(client)
{
m_page.addViewStateChangeObserver(*this);
}
GeolocationController::~GeolocationController()
{
ASSERT(m_observers.isEmpty());
m_client.geolocationDestroyed();
}
void GeolocationController::addObserver(Geolocation* observer, bool enableHighAccuracy)
{
bool wasEmpty = m_observers.isEmpty();
m_observers.add(observer);
if (enableHighAccuracy)
m_highAccuracyObservers.add(observer);
if (enableHighAccuracy)
m_client.setEnableHighAccuracy(true);
if (wasEmpty && m_page.isVisible())
m_client.startUpdating();
}
void GeolocationController::removeObserver(Geolocation* observer)
{
if (!m_observers.contains(observer))
return;
m_observers.remove(observer);
m_highAccuracyObservers.remove(observer);
if (m_observers.isEmpty())
m_client.stopUpdating();
else if (m_highAccuracyObservers.isEmpty())
m_client.setEnableHighAccuracy(false);
}
void GeolocationController::requestPermission(Geolocation* geolocation)
{
if (!m_page.isVisible()) {
m_pendedPermissionRequest.add(geolocation);
return;
}
m_client.requestPermission(geolocation);
}
void GeolocationController::cancelPermissionRequest(Geolocation* geolocation)
{
if (m_pendedPermissionRequest.remove(geolocation))
return;
m_client.cancelPermissionRequest(geolocation);
}
void GeolocationController::positionChanged(GeolocationPosition* position)
{
m_lastPosition = position;
Vector<RefPtr<Geolocation>> observersVector;
copyToVector(m_observers, observersVector);
for (auto& observer : observersVector)
observer->positionChanged();
}
void GeolocationController::errorOccurred(GeolocationError* error)
{
Vector<RefPtr<Geolocation>> observersVector;
copyToVector(m_observers, observersVector);
for (auto& observer : observersVector)
observer->setError(error);
}
GeolocationPosition* GeolocationController::lastPosition()
{
if (m_lastPosition.get())
return m_lastPosition.get();
return m_client.lastPosition();
}
void GeolocationController::viewStateDidChange(ViewState::Flags oldViewState, ViewState::Flags newViewState)
{
ViewState::Flags changed = oldViewState ^ newViewState;
if (changed & ViewState::IsVisible && !m_observers.isEmpty()) {
if (newViewState & ViewState::IsVisible)
m_client.startUpdating();
else
m_client.stopUpdating();
}
if (!m_page.isVisible())
return;
HashSet<RefPtr<Geolocation>> pendedPermissionRequests = WTFMove(m_pendedPermissionRequest);
for (auto& permissionRequest : pendedPermissionRequests)
m_client.requestPermission(permissionRequest.get());
}
const char* GeolocationController::supplementName()
{
return "GeolocationController";
}
void provideGeolocationTo(Page* page, GeolocationClient* client)
{
ASSERT(page);
ASSERT(client);
Supplement<Page>::provideTo(page, GeolocationController::supplementName(), std::make_unique<GeolocationController>(*page, *client));
}
}
#endif // ENABLE(GEOLOCATION)