public RoomsViewModel(IGitterApi api = null, IScreen hostScreen = null)
{
this.HostScreen = hostScreen ?? Locator.Current.GetService<IScreen>();
this.Rooms = new ReactiveList<RoomViewModel>();
this.LoadRooms = ReactiveCommand.CreateAsyncObservable(_ => LoadRoomsImpl(api ?? GitterApi.UserInitiated));
this.LoadRooms.Subscribe(x =>
{
using (this.Rooms.SuppressChangeNotifications())
{
this.Rooms.Clear();
this.Rooms.AddRange(x);
}
});
}
public RoomsViewModel(IGitterApi api = null, IScreen hostScreen = null)
{
this.HostScreen = hostScreen ?? Locator.Current.GetService <IScreen>();
this.Rooms = new ReactiveList <RoomViewModel>();
this.LoadRooms = ReactiveCommand.CreateAsyncObservable(_ => LoadRoomsImpl(api ?? GitterApi.UserInitiated));
this.LoadRooms.Subscribe(x =>
{
using (this.Rooms.SuppressChangeNotifications())
{
this.Rooms.Clear();
this.Rooms.AddRange(x);
}
});
}
public MessagesViewModel(Room room, IGitterApi api = null, IScreen hostScreen = null)
{
this.HostScreen = hostScreen ?? Locator.Current.GetService<IScreen>();
this.Messages = new ReactiveList<MessageViewModel>();
this.UrlPathSegment = room.name;
IObservable<string> accessToken = GitterApi.GetAccessToken().PublishLast().RefCount();
this.LoadMessages = ReactiveCommand.CreateAsyncObservable(_ => accessToken.SelectMany(token => (api ?? GitterApi.UserInitiated).GetMessages(room.id, token)));
this.Users = new ReactiveList<UserViewModel>();
this.LoadUsers = ReactiveCommand.CreateAsyncObservable(_ => accessToken
.SelectMany(token => (api ?? GitterApi.UserInitiated).GetRoomUsers(room.id, token))
.Select(users => users.OrderBy(user => user.displayName, StringComparer.CurrentCulture).Select(user => new UserViewModel(user))));
this.LoadUsers.Subscribe(x =>
{
using (this.Users.SuppressChangeNotifications())
{
this.Users.Clear();
this.Users.AddRange(x);
}
});
this.SendMessage = ReactiveCommand.CreateAsyncTask(this.WhenAnyValue(x => x.MessageText, x => !String.IsNullOrWhiteSpace(x)), async _ =>
{
await (api ?? GitterApi.UserInitiated).SendMessage(room.id, new SendMessage(this.MessageText), await accessToken);
this.MessageText = String.Empty;
});
this.LoadMessages.FirstAsync().SelectMany(x => x.ToObservable())
.Concat(this.StreamMessages(room.id))
.Select(x => new MessageViewModel(x))
.Subscribe(x =>
{
this.Messages.Insert(0, x);
});
}
public MessagesViewModel(Room room, IGitterApi api = null, IScreen hostScreen = null)
{
this.HostScreen = hostScreen ?? Locator.Current.GetService <IScreen>();
this.Messages = new ReactiveList <MessageViewModel>();
this.UrlPathSegment = room.name;
IObservable <string> accessToken = GitterApi.GetAccessToken().PublishLast().RefCount();
this.LoadMessages = ReactiveCommand.CreateAsyncObservable(_ => accessToken.SelectMany(token => (api ?? GitterApi.UserInitiated).GetMessages(room.id, token)));
this.Users = new ReactiveList <UserViewModel>();
this.LoadUsers = ReactiveCommand.CreateAsyncObservable(_ => accessToken
.SelectMany(token => (api ?? GitterApi.UserInitiated).GetRoomUsers(room.id, token))
.Select(users => users.OrderBy(user => user.displayName, StringComparer.CurrentCulture).Select(user => new UserViewModel(user))));
this.LoadUsers.Subscribe(x =>
{
using (this.Users.SuppressChangeNotifications())
{
this.Users.Clear();
this.Users.AddRange(x);
}
});
this.SendMessage = ReactiveCommand.CreateAsyncTask(this.WhenAnyValue(x => x.MessageText, x => !String.IsNullOrWhiteSpace(x)), async _ =>
{
await(api ?? GitterApi.UserInitiated).SendMessage(room.id, new SendMessage(this.MessageText), await accessToken);
this.MessageText = String.Empty;
});
this.LoadMessages.FirstAsync().SelectMany(x => x.ToObservable())
.Concat(this.StreamMessages(room.id))
.Select(x => new MessageViewModel(x))
.Subscribe(x =>
{
this.Messages.Insert(0, x);
});
}
private static IObservable<IEnumerable<RoomViewModel>> LoadRoomsImpl(IGitterApi api)
{
return GitterApi.GetAccessToken()
.SelectMany(api.GetRooms)
.Select(rooms => rooms.OrderBy(room => room.name, StringComparer.CurrentCulture).Select(room => new RoomViewModel(room)));
}
private static IObservable <IEnumerable <RoomViewModel> > LoadRoomsImpl(IGitterApi api)
{
return(GitterApi.GetAccessToken()
.SelectMany(api.GetRooms)
.Select(rooms => rooms.OrderBy(room => room.name, StringComparer.CurrentCulture).Select(room => new RoomViewModel(room))));
}
