This source file includes following definitions.
- m_inspectorAgent
- startUpdatingIfNeeded
- stopUpdatingIfNeeded
- create
- addObserver
- removeObserver
- requestPermission
- cancelPermissionRequest
- positionChanged
- errorOccurred
- lastPosition
- setClientForTest
- pageVisibilityChanged
- supplementName
- provideGeolocationTo
#include "config.h"
#include "modules/geolocation/GeolocationController.h"
#include "core/inspector/InspectorController.h"
#include "modules/geolocation/GeolocationClient.h"
#include "modules/geolocation/GeolocationError.h"
#include "modules/geolocation/GeolocationInspectorAgent.h"
#include "modules/geolocation/GeolocationPosition.h"
namespace WebCore {
GeolocationController::GeolocationController(Page& page, GeolocationClient* client)
: PageLifecycleObserver(&page)
, m_client(client)
, m_hasClientForTest(false)
, m_isClientUpdating(false)
, m_inspectorAgent()
{
OwnPtr<GeolocationInspectorAgent> geolocationAgent(GeolocationInspectorAgent::create(this));
m_inspectorAgent = geolocationAgent.get();
page.inspectorController().registerModuleAgent(geolocationAgent.release());
}
void GeolocationController::startUpdatingIfNeeded()
{
if (m_isClientUpdating)
return;
m_isClientUpdating = true;
m_client->startUpdating();
}
void GeolocationController::stopUpdatingIfNeeded()
{
if (!m_isClientUpdating)
return;
m_isClientUpdating = false;
m_client->stopUpdating();
}
GeolocationController::~GeolocationController()
{
ASSERT(m_observers.isEmpty());
if (m_client)
m_client->geolocationDestroyed();
}
PassOwnPtr<GeolocationController> GeolocationController::create(Page& page, GeolocationClient* client)
{
return adoptPtr(new GeolocationController(page, client));
}
void GeolocationController::addObserver(Geolocation* observer, bool enableHighAccuracy)
{
bool wasEmpty = m_observers.isEmpty();
m_observers.add(observer);
if (enableHighAccuracy)
m_highAccuracyObservers.add(observer);
if (m_client) {
if (enableHighAccuracy)
m_client->setEnableHighAccuracy(true);
if (wasEmpty && page() && page()->visibilityState() == PageVisibilityStateVisible)
startUpdatingIfNeeded();
}
}
void GeolocationController::removeObserver(Geolocation* observer)
{
if (!m_observers.contains(observer))
return;
m_observers.remove(observer);
m_highAccuracyObservers.remove(observer);
if (m_client) {
if (m_observers.isEmpty())
stopUpdatingIfNeeded();
else if (m_highAccuracyObservers.isEmpty())
m_client->setEnableHighAccuracy(false);
}
}
void GeolocationController::requestPermission(Geolocation* geolocation)
{
if (m_client)
m_client->requestPermission(geolocation);
}
void GeolocationController::cancelPermissionRequest(Geolocation* geolocation)
{
if (m_client)
m_client->cancelPermissionRequest(geolocation);
}
void GeolocationController::positionChanged(GeolocationPosition* position)
{
position = m_inspectorAgent->overrideGeolocationPosition(position);
if (!position) {
errorOccurred(GeolocationError::create(GeolocationError::PositionUnavailable, "PositionUnavailable").get());
return;
}
m_lastPosition = position;
WillBeHeapVector<RefPtrWillBeMember<Geolocation> > observersVector;
copyToVector(m_observers, observersVector);
for (size_t i = 0; i < observersVector.size(); ++i)
observersVector[i]->positionChanged();
}
void GeolocationController::errorOccurred(GeolocationError* error)
{
WillBeHeapVector<RefPtrWillBeMember<Geolocation> > observersVector;
copyToVector(m_observers, observersVector);
for (size_t i = 0; i < observersVector.size(); ++i)
observersVector[i]->setError(error);
}
GeolocationPosition* GeolocationController::lastPosition()
{
if (m_lastPosition.get())
return m_lastPosition.get();
if (!m_client)
return 0;
return m_client->lastPosition();
}
void GeolocationController::setClientForTest(GeolocationClient* client)
{
m_client = client;
m_hasClientForTest = true;
}
void GeolocationController::pageVisibilityChanged()
{
if (m_observers.isEmpty() || !m_client)
return;
if (page() && page()->visibilityState() == PageVisibilityStateVisible)
startUpdatingIfNeeded();
else
stopUpdatingIfNeeded();
}
const char* GeolocationController::supplementName()
{
return "GeolocationController";
}
void provideGeolocationTo(Page& page, GeolocationClient* client)
{
Supplement<Page>::provideTo(page, GeolocationController::supplementName(), GeolocationController::create(page, client));
}
}