internal virtual void AddEventFilter(EventFilter filter)
{
if (EventLog.isLoggable(PlatformLogger.Level.FINEST))
{
EventLog.finest("adding the event filter: " + filter);
}
lock (EventFilters)
{
if (!EventFilters.Contains(filter))
{
if (filter is ModalEventFilter)
{
ModalEventFilter newFilter = (ModalEventFilter)filter;
int k = 0;
for (k = 0; k < EventFilters.Count; k++)
{
EventFilter f = EventFilters[k];
if (f is ModalEventFilter)
{
ModalEventFilter cf = (ModalEventFilter)f;
if (cf.CompareTo(newFilter) > 0)
{
break;
}
}
}
EventFilters.Insert(k, filter);
}
else
{
EventFilters.Add(filter);
}
}
}
}
internal virtual int CompareTo(ModalEventFilter another)
{
Dialog anotherDialog = another.ModalDialog;
// check if modalDialog is from anotherDialog's hierarchy
// or vice versa
Component c = ModalDialog_Renamed;
while (c != null)
{
if (c == anotherDialog)
{
return(1);
}
c = c.Parent_NoClientCode;
}
c = anotherDialog;
while (c != null)
{
if (c == ModalDialog_Renamed)
{
return(-1);
}
c = c.Parent_NoClientCode;
}
// check if one dialog blocks (directly or indirectly) another
Dialog blocker = ModalDialog_Renamed.ModalBlocker;
while (blocker != null)
{
if (blocker == anotherDialog)
{
return(-1);
}
blocker = blocker.ModalBlocker;
}
blocker = anotherDialog.ModalBlocker;
while (blocker != null)
{
if (blocker == ModalDialog_Renamed)
{
return(1);
}
blocker = blocker.ModalBlocker;
}
// compare modality types
return(ModalDialog_Renamed.ModalityType.CompareTo(anotherDialog.ModalityType));
}