public bool TryHandle(object sender, object message)
{
var view = _view;
if (!view.IsAlive())
{
Update(null);
return(false);
}
var activity = _view.Context.GetActivity();
if (activity == null)
{
Update(null);
Tracer.Warn("(PopupMenu) The contex of view is not an activity.");
return(false);
}
var template = _view.GetBindingMemberValue(AttachedMembers.View.PopupMenuTemplate);
var path = _view.GetBindingMemberValue(AttachedMembers.View.PopupMenuPlacementTargetPath);
View itemView = null;
if (!string.IsNullOrEmpty(path))
{
itemView = (View)BindingExtensions.GetValueFromPath(message, path);
}
var menuPresenter = _view.GetBindingMemberValue(AttachedMembers.View.PopupMenuPresenter);
if (menuPresenter == null)
{
var menu = new PopupMenu(activity, itemView ?? view);
menu.Menu.ApplyMenuTemplate(template, activity, itemView ?? view);
menu.SetOnDismissListener(DismissListener);
menu.Show();
return(true);
}
return(menuPresenter.Show(view, itemView ?? view, template, message, (s, menu) => MenuTemplate.Clear(menu)));
}
