Question

Right now I’m working on a Internet Explorer add on which is supposed to scan a HTML-document for URL’s in plain text, and then “linkify” them.

I have access to the websites DOM, and had an idea to traverse all of the DOM nodes and search for “links” using RegEx, to replace these text with HTML-code, however, when changing the “InnerText” property of the IHTMLElement object, all of it’s child nodes are lost, which seriously f*cks up the website.

Here’s some code:

//This method is called when IE has finished loading a page
void _webBrowser2Events_DocumentComplete(object pDisp, ref object URL)
{
    if (pDisp == _webBrowser2)
    {
        HTMLDocument pageContent = _webBrowser2.Document;
        IHTMLElement bodyHtmlElmnt = pageContent.body;
        fixElement(bodyHtmlElmnt);
    }   
}

And here’s the fixElement-method:

void fixElement(IHTMLElement node)
{
    if (node.innerText!=null && ((IHTMLElementCollection)node.children).length==0)
    {
        node.innerText= node.innerText.Replace("testString", "replaceWithThis");
    }

    foreach (IHTMLElement child in (node.children as mshtml.IHTMLElementCollection))
    {
        fixElement(child);
    }
}

This works, but only for nodes that doesn’t have any children.

Can anyone please help me with this problem, I would be very grateful!

Regards

//Henrik

Answer 1

Why you dont want to use javscript like this
http://userscripts.org/scripts/review/1352
Then just execute this javascript using your c# code.
just

webBrowser1.Navigate(new Uri("javascript:<YOURSCRIPT>"));

Good thing about this is you can do many things without even re-inventing them , url linkification is long back invented by javascript people, so just use that code..

If any script (like this one is big , then you can insert from *.js file using this script)

javascript:(function(){document.body.appendChild(document.createElement('script')).src='<YOUR SCRIPT URL>';})();

replace with your javascript hosted on internet OR localy (if local use file:// url format)