public bool CommandJudger(object pra)
{
if (pra is object[])
{
object[] cmds = pra as object[];
string cmd = cmds[0] as string;
ChrominViewModel cvm = cmds[1] as ChrominViewModel;
//Console.WriteLine("Canexcute=====>" + cmd);
if (cvm == null || cvm.WebBrowser == null)
{
if (cmd == "_OpenUrl")
{
if (!string.IsNullOrWhiteSpace((string)cmds[2]))
{
return(true);
}
}
if (cmd == "_NewTask")
{
if (!string.IsNullOrWhiteSpace((string)cmds[2]))
{
return(true);
}
}
return(false);
}
switch (cmd)
{
case "_Back":
return(cvm.WebBrowser.CanGoBack);
case "_Fresh":
return(cvm.WebBrowser.Address != null);
case "_Next":
return(cvm.WebBrowser.CanGoForward);
case "_Close":
return(true);
case "_OpenUrl":
App.Current.Dispatcher.BeginInvoke(new Action(() =>
{
CommandManager.InvalidateRequerySuggested();
}));
if ((cvm == null || cvm.WebBrowser.Address == null))
{
if ((cmds[2] == null || (string)cmds[2] == ""))
{
return(false);
}
return(true);
}
else
{
return(cvm.WebBrowser.Address != cmds[2] as string);
}
case "_NewTask":
return(CmdHelper.CanAnalysis(cmds[2] as string));
default:
break;
}
}
return(pra == null ? false : true);
}