public void parseMessageObject(string msg)
{
Device.BeginInvokeOnMainThread(() =>
{
System.Diagnostics.Debug.WriteLine(msg);
SNSMessagePCL tmp = JsonConvert.DeserializeObject<SNSMessagePCL>(msg);
if (oldTime.Equals(tmp.Time))
{
return;
}else
{
oldTime = tmp.Time;
}
ChatMessage message = new ChatMessage { ToFrom = tmp.ToFrom, Time = tmp.Time, Text = tmp.Text, Sender = tmp.Sender };
if (tmp.Subject == "Handshake")
{
MessagingCenter.Send<App, ChatMessage>(this, "Handshake", message);
}
else if (tmp.Subject == "HandshakeEnd")
{
if (ChatSelectionPageActive || ChatPageActive) {
MessagingCenter.Send<App, ChatMessage>(this, "HandshakeEnd", message);
}
if (ChatPageActive)
{
MessagingCenter.Send<App, ChatMessage>(this, "ConversationEnd", message);
}
}
else
{
MessagingCenter.Send<App, ChatMessage>(this, "Hi", message);
}
});
}
public ChatMessage singleMessageFromServer(String ToFrom, String Time, String Message) //upon recieving a single message, add it to the log of messages.
{
string Sender;
if (ToFrom.StartsWith(Constants.conv.id))
{
Sender = this.mainUser;
}
else
{
Sender = Constants.conv.name;
}
ChatMessage newMsg = new ChatMessage()
{
Text = Message,
Sender = Sender,
Time = generateLocalTime(Time),
ToFrom = ToFrom
};
return newMsg;
}
public async void sendMessage(ChatMessage message)
{
try{
await PushMessage(message.Text);
}
catch(Exception E)
{
System.Diagnostics.Debug.WriteLine("error storing in server "+ E);
};
}
private void addNameLabel(ChatMessage msgObj, bool user)
{
Label message = new Label()
{
Text = msgObj.Sender + " - " + msgObj.Time,
TextColor = Color.Black,
FontSize = 15,
FontFamily = "Arial",
FontAttributes = FontAttributes.Italic,
HorizontalTextAlignment = user ? TextAlignment.End : TextAlignment.Start
};
Frame frame = new Frame()
{
Padding = new Thickness(5),
Content = message,
HorizontalOptions = user ? LayoutOptions.EndAndExpand : LayoutOptions.StartAndExpand,
VerticalOptions = LayoutOptions.CenterAndExpand,
};
this.messageStack.Children.Add(frame);
}
private void addSingleMessage(ChatMessage msgObj, bool user)
{
Label message = new Label()
{
Text = msgObj.Text,
TextColor = Color.Black,
FontSize = 18,
FontFamily = "Arial",
HorizontalTextAlignment = TextAlignment.Start,
};
Frame frame = new Frame()
{
Padding = new Thickness(5),
Content = message,
HorizontalOptions = user ? LayoutOptions.EndAndExpand : LayoutOptions.StartAndExpand,
VerticalOptions = LayoutOptions.CenterAndExpand,
BackgroundColor = user ? Constants.rightMessageColor : Constants.leftMessageColor,
WidthRequest = width * 0.70,
//HasShadow = true
};
TapGestureRecognizer messageFrameTapped = new TapGestureRecognizer();
messageFrameTapped.Tapped += (s, e) => MessageFrameTapped_Tapped(s, e, msgObj);
frame.GestureRecognizers.Add(messageFrameTapped);
this.messageStack.Children.Add(frame);
}
private void AddMessageToChat(ChatMessage msgObj)
{
bool val;
if (msgObj.Sender == this.mainUser)
{
val = true;
}
else
{
val = false;
}
if (msgObj.Sender != this.previousUser)
{
addSpace(3);
addNameLabel(msgObj, val);
addSpace(1);
addSingleMessage(msgObj, val);
this.previousUser = msgObj.Sender;
}
else
{
addSpace(1);
addSingleMessage(msgObj, val);
}
}
public void deleteMessage(ChatMessage msg) //given the ID of a message, delete said message from messages.
{
Constants.conv.msgs.Remove(msg);
}
public void reportMessage(ChatMessage msg) //Enables users to report selected message based on specific criteria
{
Navigation.PopAsync();
Navigation.PushAsync(new ReportMessage(msg));
}
private async void MessageFrameTapped_Tapped(object sender, EventArgs e, ChatMessage msgObj)
{
var action = await DisplayActionSheet(null, null, null, "Hide text", "Report", "Delete Message");
Frame frame;
switch (action)
{
case "Hide text":
frame = sender as Frame;
frame.IsVisible = false;
break;
case "Report":
reportMessage(msgObj);
break;
case "Delete Message":
frame = sender as Frame;
frame.IsVisible = false;
deleteMessage(msgObj);
break;
}
}
private void SendButtonClicked(object sender, EventArgs e)
{
string text = textEditor.Text;
if (String.IsNullOrWhiteSpace(text))
{
return;
}
textEditor.Text = "";
ChatMessage msgObj = new ChatMessage()
{
ToFrom = Helpers.Settings.ToFromArn,
Text = text,
Sender = this.mainUser,
Time = DateTime.Now.ToString("hh:mm tt"),
};
AddMessageToChat(msgObj);
Constants.conv.msgs.Add(msgObj);
ScrolltoBottom(false);
PushMessage(text);
}
