//@@hack: workaround for main view code behind
/// <summary>
/// Determines whether this instance can close. This is meant to be called by the view
/// code behind when testing if a document can close (OnDocumentClosing).
/// </summary>
/// <returns>true if can close</returns>
public bool CanClose()
{
if (!IsDirty())
{
return(true);
}
MessageBoxAction prompt = new MessageBoxAction
{
Caption = App.APP_NAME,
Text = LocalizedStrings.Format(StringResources.DiscardDocumentChangesPrompt,
DisplayName),
Button = MessageBoxButton.YesNo,
Image = MessageBoxImage.Question
};
bool bResult = true;
prompt.Completed += (sender, e) =>
{
bResult = prompt.Result == MessageBoxResult.Yes;
};
prompt.Execute(null);
return(bResult);
}
/// <summary>
/// Called to check whether or not this instance can close.
/// </summary>
/// <param name="callback">The implementor calls this action with the result
/// of the close check.</param>
public override void CanClose(Action <bool> callback)
{
// if forcing (@@hack) or not dirty it's OK to close
if ((_bIsForcedClosing) || (!IsDirty()))
{
callback(true);
return;
} //eif
// else prompt user
MessageBoxAction prompt = new MessageBoxAction
{
Caption = App.APP_NAME,
Text = LocalizedStrings.Format(StringResources.DiscardDocumentChangesPrompt,
DisplayName),
Button = MessageBoxButton.YesNo,
Image = MessageBoxImage.Question
};
prompt.Completed += (sender, e) =>
{
callback(prompt.Result == MessageBoxResult.Yes);
};
prompt.Execute(null);
}