/**
* Adds a new GeoQueryEventListener to this GeoQuery.
*
* @throws java.lang.IllegalArgumentException If this listener was already added
*
* @param listener The listener to add
*/
public void addGeoQueryEventListener(GeoQueryEventListener listener)
{
lock (Lock) {
if (eventListeners.Contains(listener))
{
throw new Exception("Added the same listener twice to a GeoQuery!");
}
eventListeners.Add(listener);
if (this.queries == null)
{
this.setupQueries();
}
else
{
foreach (string key in locationInfos.Keys)
{
LocationInfo info = GeoUtils.getMapSafe(key, locationInfos);
if (info.inGeoQuery)
{
geoFire.raiseEvent(() => {
listener.onKeyEntered(key, info.location);
});
}
}
if (canFireReady())
{
geoFire.raiseEvent(() => {
listener.onGeoQueryReady();
});
}
}
}
}
/**
* Removes an event listener.
*
* @throws java.lang.IllegalArgumentException If the listener was removed already or never added
*
* @param listener The listener to remove
*/
public void removeGeoQueryEventListener(GeoQueryEventListener listener)
{
lock (Lock) {
if (!eventListeners.Contains(listener))
{
throw new Exception("Trying to remove listener that was removed or not added!");
}
eventListeners.Remove(listener);
if (!this.hasListeners())
{
reset();
}
}
}
