public virtual void Navigate(ViewModelBase page, bool cache = true)
{
if (page == null)
{
return;
}
var args = new BeforeNavigateEventArgs()
{
Page = CurrentPage,
NextPage = page
};
BeforeNavigate?.Invoke(this, args);
if (args.Cancel)
{
return;
}
if (cache)
{
_history.Add(page);
}
CurrentPage = page;
if (_navigationHistory.Count > 200)
{
_navigationHistory.RemoveAt(0);
}
_navigationHistory.Add(page.GetType().FullName);
AfterNavigate?.Invoke(this, EventArgs.Empty);
}
public int TranslateUrl(int dwTranslate, string strURLIn, out string pstrURLOut)
{
BeforeNavigateEventArgs args = new BeforeNavigateEventArgs(strURLIn);
this.htmlEditor.OnBeforeNavigate(args);
if (args.Cancel)
{
// This is how we cancel it, a bit weird to provide a blank, but String.Empty will not work!
pstrURLOut = " ";
}
else
{
pstrURLOut = args.Url;
}
return(pstrURLOut.Equals(strURLIn) ? Interop.S_FALSE : Interop.S_OK);
}
public virtual void GoBack(int count = 1)
{
var args = new BeforeNavigateEventArgs();
OnBack(args);
if (args.Cancel)
{
return;
}
if (_history.Last() != CurrentPage)
{
count--;
}
if (_history.Count() - count > 1)
{
_history.RemoveRange(_history.Count() - 1, count);
}
else
{
_history.RemoveRange(1, _history.Count() - 1);
}
Navigate(_history.Last(), false);
}
protected void OnBack(BeforeNavigateEventArgs args)
{
Back?.Invoke(this, args);
}
