/// <summary>
/// Frame to hold the actual work on a background thread. Should only be called by a command
/// </summary>
/// <param name="action">Actual work to be done</param>
private void DoBGAction(QuirkyAction action)
{
if (mBusy == true) return;
mBusy = true;
var bw = new BackgroundWorker { WorkerReportsProgress = true };
bw.DoWork += (s, e) => action(bw);
bw.RunWorkerCompleted += (s, e) =>
{
mBusy = false;
Progress = 0;
Status = string.Empty;
};
bw.ProgressChanged += (s, e) =>
{
Progress = e.ProgressPercentage;
if (e.UserState != null && e.UserState.GetType() == typeof(string))
Status = e.UserState.ToString();
};
bw.RunWorkerAsync();
}
private void BindCommand(MainViewModel source, Expression<Func<MainViewModel, ICommand>> outExpr, QuirkyAction input)
{
var expr = (MemberExpression)outExpr.Body;
var prop = (PropertyInfo)expr.Member;
var command = new CustomCommand
{
CanExecuteAction = o => !source.mBusy,
ExecuteAction = o => source.DoBGAction(input)
};
prop.SetValue(source, command, null);
}
private CommandsAndActions CA(Expression<Func<MainViewModel, ICommand>> property, QuirkyAction command)
{
return new CommandsAndActions(property, command);
}
public CommandsAndActions(Expression<Func<MainViewModel, ICommand>> property, QuirkyAction command)
{
Property = property;
Command = command;
}
