private void HTMLDocumentCompare()
{
if (_oldWebPage.DocumentNode != _newWebPage.DocumentNode)
{
_oldWebPage = _newWebPage;
DetectorArgs myArgs = new DetectorArgs("something on website changes");
HistoryChange(this, myArgs);
OnWebsiteChange(this, myArgs);
}
else
{
DetectorArgs myArgs = new DetectorArgs("no changes on website ");
HistoryChange(this, myArgs);
}
}
private String GetHtmlPage()
{
try
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(_url);
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
StreamReader source = new StreamReader(response.GetResponseStream());
return(source.ReadToEnd());
}
catch (Exception ex)
{
DetectorArgs myArgs = new DetectorArgs("I can't check page. No internet");
HistoryChange(this, myArgs);
return("");
}
}
public void StartDetection()
{
_oldWebPage = new HtmlDocument();
_oldWebPage.LoadHtml(GetHtmlPage());
if (_elementName != "")
{
_oldNode = _oldWebPage.GetElementbyId(_elementName);
if (_oldNode == null)
{
DetectorArgs myArg = new DetectorArgs("Cant find element on website ");
HistoryChange(this, myArg);
}
}
_timer = new DispatcherTimer();
_timer.Tick += timer_Tick;
_timer.Interval = new TimeSpan(0, _freq, 0);
_timer.Start();
}
private void HTMLNodeCompare()
{
if (_oldNode != null && _newNode != null)
{
if (_oldNode.OuterHtml != _newNode.OuterHtml)
{
_oldNode = _newNode;
DetectorArgs myArgs = new DetectorArgs("Your node changes");
HistoryChange(this, myArgs);
OnWebsiteChange(this, myArgs);
}
else
{
DetectorArgs myArgs = new DetectorArgs("no changes on website ");
HistoryChange(this, myArgs);
}
}
else
{
DetectorArgs myArg = new DetectorArgs("Cant find element on website ");
HistoryChange(this, myArg);
}
}