private void EnsureModality()
{
bool activateLayer = true;
for (int i = layerStack.Count - 1; i >= 0; --i)
{
// the topmost layer is always activated since we set activateLayer as true
InputLayer layer = layerStack[i];
if (activateLayer)
{
layer.Activate();
}
else
{
layer.Deactivate();
}
// if the current layer is modal, then the succeeding layers are deactivated
if (activateLayer && layer.IsModal)
{
activateLayer = false;
}
}
}
