public ChatPhotosViewModel(IMTProtoService protoService, TLChatFullBase chatFull, TLChatBase chat)
: base(protoService, null, null)
{
_peer = chat.ToInputPeer();
_lastMaxId = int.MaxValue;
Items = new MvxObservableCollection <GalleryItem> {
new GalleryPhotoItem(chatFull.ChatPhoto as TLPhoto, chat)
};
SelectedItem = Items[0];
FirstItem = Items[0];
Initialize();
}
public override async Task OnNavigatedToAsync(object parameter, NavigationMode mode, IDictionary <string, object> state)
{
Task <MTProtoResponse <TLExportedChatInviteBase> > task = null;
if (parameter is TLPeerChannel peerChannel)
{
_peer = peerChannel;
var channel = CacheService.GetChat(peerChannel.ChannelId) as TLChannel;
if (channel != null)
{
Item = channel;
var full = CacheService.GetFullChat(channel.Id) as TLChannelFull;
if (full == null)
{
var response = await ProtoService.GetFullChannelAsync(channel.ToInputChannel());
if (response.IsSucceeded)
{
full = response.Result.FullChat as TLChannelFull;
}
}
if (full != null)
{
_full = full;
_exportedInvite = full.ExportedInvite;
if (full.ExportedInvite is TLChatInviteExported invite)
{
InviteLink = invite.Link;
}
else
{
task = ProtoService.ExportInviteAsync(channel.ToInputChannel());
}
}
}
}
else if (parameter is TLPeerChat peerChat)
{
_peer = peerChat;
var chat = CacheService.GetChat(peerChat.ChatId) as TLChat;
if (chat != null)
{
Item = chat;
var full = CacheService.GetFullChat(chat.Id) as TLChatFull;
if (full == null)
{
var response = await ProtoService.GetFullChatAsync(chat.Id);
if (response.IsSucceeded)
{
full = response.Result.FullChat as TLChatFull;
}
}
if (full != null)
{
_exportedInvite = full.ExportedInvite;
if (full.ExportedInvite is TLChatInviteExported invite)
{
InviteLink = invite.Link;
}
else
{
task = ProtoService.ExportChatInviteAsync(chat.Id);
}
}
}
}
if (task != null)
{
var response = await task;
if (response.IsSucceeded)
{
_exportedInvite = response.Result;
if (_full != null)
{
_full.ExportedInvite = response.Result;
}
var invite = response.Result as TLChatInviteExported;
if (invite != null && !string.IsNullOrEmpty(invite.Link))
{
InviteLink = invite.Link;
}
}
else
{
Execute.ShowDebugMessage("channels.exportInvite error " + response.Error);
}
}
}
public ChatPhotosViewModel(IMTProtoService protoService, ICacheService cacheService, TLChatFullBase chatFull, TLChatBase chat, TLMessageService serviceMessage)
: base(protoService, cacheService, null)
{
_peer = chat.ToInputPeer();
_lastMaxId = serviceMessage.Id;
if (serviceMessage.Action is TLMessageActionChatEditPhoto editPhotoAction)
{
Items = new MvxObservableCollection <GalleryItem> {
new GalleryPhotoItem(editPhotoAction.Photo as TLPhoto, chat)
};
SelectedItem = Items[0];
FirstItem = Items[0];
}
Initialize(serviceMessage.Id);
}
