public AvatarCollectionHandler(
IAvatarStorage avatarStorage,
IUserAvatarStorage userAvatarStorage,
ViewModel.Account account,
ViewModel.Contacts contacts)
{
this.avatarStorage = avatarStorage;
this.userAvatarStorage = userAvatarStorage;
this.contacts = contacts;
Handle(
el =>
el.OfType <Message>() &&
el.HasDescendants <Event>() &&
el.HasDescendants <Metadata>(),
async(context, el) =>
{
var msg = el.Cast <Message>();
var metaData = el.Descendants <Metadata>().First();
if (metaData.Info != null)
{
var id = metaData.Info.Id;
var from = msg.From.Bare;
if (!avatarStorage.HasAvatar(id))
{
await RequestAvatar(from, id);
}
if (contacts.Contains(from))
{
// avatar of a contact
contacts[from].AvatarBytes = avatarStorage.GetAvatar(id)?.ImageBytes;
}
else if (account.XmppId == from)
{
//our own avatar
account.AvatarBytes = avatarStorage.GetAvatar(id)?.ImageBytes;
}
}
});
}
public PresenceCollectionHandler(ViewModel.Account account, IMapper mapper)
{
// handle self presence
Handle(
el =>
el.OfType <Presence>() &&
el.Cast <Presence>().Type == PresenceType.Available &&
el.Cast <Presence>().From.Equals(account.XmppId, new BareJidComparer()),
async(context, xmppXElement) =>
{
var pres = xmppXElement.Cast <Presence>();
if (pres.From.Resource == account.Resource)
{
// this is our client
await Observable.Start(() =>
account.Presence = mapper.Map <ViewModel.Presence>(pres),
RxApp.MainThreadScheduler);
}
});
}
