public async Task OnLoad(object data)
{
IsLoadingPrevious = true;
Message.WasRead = true;
var userId = Message.Partner.Model.GetUserId();
var cacheMessages = await Cache.GetMessages();
var messages = cacheMessages.Where(m => m.Recipient == userId || m.Sender == userId)
.Select(m => JsonConvert.DeserializeObject <DirectMessage>(m.Data))
.Where(m => m.GetMessageId() < Message.Id)
.OrderBy(m => m.CreatedAt);
foreach (var m in messages)
{
var msg = new MessageViewModel(m, Message.Context, Configuration, ViewServiceRepository)
{
WasRead = true
};
await Dispatcher.RunAsync(() => PreviousMessages.Add(msg));
}
RaisePropertyChanged(nameof(PreviousMessages));
IsLoadingPrevious = false;
await Dispatcher.RunAsync(() => ScrollRequested?.Invoke(this, EventArgs.Empty));
}
/// <summary>
/// Called when the textbox is submitted.
/// </summary>
/// <param name="text"></param>
private void OnTextboxSubmit(string text)
{
if (Overlay.ActiveChannel == null)
{
return;
}
var chatMessage = new ChatMessage(Overlay.ActiveChannel.Name, text);
ChatManager.SendMessage(Overlay.ActiveChannel, chatMessage);
// Delete element if message is found
if (PreviousMessages.Contains(text))
{
PreviousMessages.Remove(text);
}
// Save messages
PreviousMessages.Add(text);
// Scroll to the bottom when sending chat messages
var messageContainer = Overlay.ChannelMessageContainers[Overlay.ActiveChannel];
messageContainer.ScrollTo(-messageContainer.ContentContainer.Height, 800);
}