private void AddToMessages(ToxMessageViewModelBase message)
{
var successFulAppend = AppendToLastGroup(message);
if (successFulAppend)
{
return;
}
var msgGroup = new MessageGroupViewModel(message.Sender);
msgGroup.Messages.Add(message);
MessageGroups.Add(msgGroup);
RaiseMessageAdded(message);
}
/// <summary>
/// Try to append the message to the last message group. It's possible only if the last message group's sender is the
/// same as the message's sender.
/// </summary>
/// <param name="message">The message to append.</param>
/// <param name="messageType">Type of the message.</param>
/// <param name="sender">The sender of the message.</param>
/// <param name="messageId">The message ID of the message.</param>
/// <returns>True on success, false otherwise.</returns>
private bool AppendToLastGroup(ToxMessageViewModelBase message)
{
if (MessageGroups.Count == 0 || MessageGroups.Last().Messages.Count == 0)
{
return(false);
}
// TODO: Implement and use simple equality operator below. It won't work for group chats like this.
if (MessageGroups.Last().Sender.GetType() == message.Sender.GetType())
{
MessageGroups.Last()
.Messages.Add(message);
RaiseMessageAdded(message);
return(true);
}
return(false);
}
private void MessageAddedHandler(object sender, ToxMessageViewModelBase message)
{
if (IsSticky())
{
ScrollToBottom(true);
}
else
{
// We only play the notification animation if the user receives a message.
// We do not disturb the user with his/her own messages, only give him/her the opportunity to
// scroll to the bottom fast to catch up with the recent messages.
_messageAddedNotificationGrid.Visibility = Visibility.Visible;
if (message is ReceivedMessageViewModel)
{
_messageAddedNotificationAnimation.Begin();
}
}
}
private void RaiseMessageAdded(ToxMessageViewModelBase message)
{
MessageAdded?.Invoke(this, message);
}
/// <summary>
/// Try to append the message to the last message group. It's possible only if the last message group's sender is the
/// same as the message's sender.
/// </summary>
/// <param name="message">The message to append.</param>
/// <param name="messageType">Type of the message.</param>
/// <param name="sender">The sender of the message.</param>
/// <param name="messageId">The message ID of the message.</param>
/// <returns>True on success, false otherwise.</returns>
private bool AppendToLastGroup(ToxMessageViewModelBase message)
{
if (MessageGroups.Count == 0 || MessageGroups.Last().Messages.Count == 0)
return false;
// TODO: Implement and use simple equality operator below. It won't work for group chats like this.
if (MessageGroups.Last().Sender.GetType() == message.Sender.GetType())
{
MessageGroups.Last()
.Messages.Add(message);
RaiseMessageAdded(message);
return true;
}
return false;
}
private async Task StoreMessage(ToxMessageViewModelBase message)
{
await _dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
var successFulAppend = AppendToLastGroup(message);
if (successFulAppend)
return;
var msgGroup = new MessageGroupViewModel(message.Sender);
msgGroup.Messages.Add(message);
MessageGroups.Add(msgGroup);
RaiseMessageAdded(message);
});
}
private void RaiseMessageAdded(ToxMessageViewModelBase message)
{
if (MessageAdded != null)
MessageAdded(this, message);
}
private void StoreMessage(ToxMessageViewModelBase message)
{
DispatcherHelper.CheckBeginInvokeOnUI(() => { AddToMessages(message); });
}
private void RaiseMessageAdded(ToxMessageViewModelBase message)
{
MessageAdded?.Invoke(this, message);
}