private void SubscribeMessagesChanged()
{
ChatModel.Messages.CollectionChanged += ((sender, e) =>
{
if (e.OldItems != null)
{
foreach (MessageModel it in e.OldItems)
{
Messages.RemoveAt(Messages.FindIndex(x => x.MessageModel == it));
}
}
if (e.NewItems != null)
{
foreach (MessageModel it in e.NewItems)
{
int i = 0;
for (; i < Messages.Count; i++)
{
if (Messages[i].MessageModel.Id > it.Id)
{
break;
}
}
var mb = new MessageBlockViewModel(_manager, it);
Messages.Insert(i, mb);
}
}
});
}
private void InitMessages()
{
foreach (var model in ChatModel.Messages)
{
var view = new MessageBlockViewModel(_manager, model);
Messages.Add(view);
}
}