protected override void OnInitialized()
{
Whiteboard.OnStroke(async stroke =>
{
await _context.StrokeAsync(stroke);
await _context.FlushAsync();
});
Whiteboard.OnWipe(async wipe =>
{
await _context.WipeAsync(wipe);
await _context.FlushAsync();
});
Whiteboard.OnFill(async fill =>
{
await _context.FillAsync(fill);
await _context.FlushAsync();
});
Whiteboard.OnClear(async clear =>
{
await _context.ClearAsync(clear);
await _context.FlushAsync();
});
Whiteboard.OnUndo(async undo =>
{
System.Console.WriteLine("Undo");
await _context.ClearAsync(Clear.All);
foreach (var action in Whiteboard.Actions)
{
if (action is Stroke stroke)
{
await _context.StrokeAsync(stroke);
}
else if (action is Wipe wipe)
{
await _context.WipeAsync(wipe);
}
else if (action is Fill fill)
{
await _context.FillAsync(fill);
}
else if (action is Clear clear)
{
await _context.ClearAsync(clear);
}
}
await _context.FlushAsync();
});
}