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using System.Threading.Tasks;
using Avalonia.Controls;
using Avalonia.Markup.Xaml;
namespace Erable.Views
{
public class MessageBox : Window
{
public enum MessageBoxButtons
{
Ok,
OkCancel,
YesNo,
YesNoCancel
}
public enum MessageBoxResult
{
Ok,
Cancel,
Yes,
No
}
public MessageBox()
{
AvaloniaXamlLoader.Load(this);
}
public static Task<MessageBoxResult> Show(Window parent, string text, string title, MessageBoxButtons buttons)
{
var msgbox = new MessageBox()
{
Title = title
};
msgbox.FindControl<TextBlock>("Text").Text = text;
var buttonPanel = msgbox.FindControl<StackPanel>("Buttons");
var res = MessageBoxResult.Ok;
void AddButton(string caption, MessageBoxResult r, bool def = false)
{
var btn = new Button {Content = caption};
btn.Click += (_, __) => {
res = r;
msgbox.Close();
};
buttonPanel.Children.Add(btn);
if (def)
res = r;
}
if (buttons == MessageBoxButtons.Ok || buttons == MessageBoxButtons.OkCancel)
AddButton("OK", MessageBoxResult.Ok, true);
if (buttons == MessageBoxButtons.YesNo || buttons == MessageBoxButtons.YesNoCancel)
{
AddButton("Yes", MessageBoxResult.Yes);
AddButton("No", MessageBoxResult.No, true);
}
if (buttons == MessageBoxButtons.OkCancel || buttons == MessageBoxButtons.YesNoCancel)
AddButton("Cancel", MessageBoxResult.Cancel, true);
var tcs = new TaskCompletionSource<MessageBoxResult>();
msgbox.Closed += delegate { tcs.TrySetResult(res); };
if (parent != null)
msgbox.ShowDialog(parent);
else msgbox.Show();
return tcs.Task;
}
}
}
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