CODEWITHSUNDEEP
c#javascriptdomgeckofx
brokkc
brokkc

Reputation: 53

Pass GeckoFX DOM elements to JavaScript navigation calls

using GeckoFX web browser, is it possible to pass a GeckoElement through JavaScript like this,

WebBrowser.Navigate("javascript:void("+ele.DomObject+".onclick())");

I'm selecting the DOM element through JavaScript (this works fine) atm, but i have the element in c#.

Upvotes: 0

Views: 5213

Answers (2)

John Hatton
John Hatton

Reputation: 1784

You can do this with the following:

WebBrowser.Navigate("javascript:void(document.getElementById('"+button.Id+"').click())");

Upvotes: 0

Scott
Scott

Reputation: 306

Unfortunately elements can't be passed to javascript like that.

However, the WebBrowser.Navigate call is unnecessary and causes an unneeded loss of page variables.

For the sake of completeness I've posted a snippet - long winded for this occasion ;) - that injects javascript and then calls it from an automated button click via a button.click() handler without the need to navigate the browser to run it all.

DOM.GeckoScriptElement script = Document.CreateElement("script").AsScriptElement();
script.Type = "text/javascript";
script.Text = "function doAlert(){ alert('My alert - fired by automating a button click on the [Automated Button]'); }";
Document.Body.AppendChild(script);

script = Document.CreateElement("script").AsScriptElement();
script.Type = "text/javascript";
script.Text = "function callDoAlert(id){ var el = document.getElementById(id); el.click(); }";
Document.Body.AppendChild(script);

DOM.GeckoInputElement button = Document.CreateElement("input").AsInputElement();
button.Type = "button";
button.Id = "myButton";
button.Value = "Automated Button";
button.SetAttribute("onclick", "javascript:doAlert();");

Document.Body.AppendChild(button);

DOM.GeckoInputElement button2 = Document.CreateElement("input").AsInputElement();
button2.Type = "button";
button2.Id = "myOtherButton";
button2.Value = "Press Me";
button2.SetAttribute("onclick", "javascript:document.getElementById('myButton').click();");

Document.Body.AppendChild(button2);

//uncomment to fully automate without the <webbrowser>.Navigate("javascript:.."); hack
//button2.click();

I'm not sure this snippet will help you, directly, as it's mainly focused on using the GFXe build of the control but, I'm sure it will point you in a better direction than the

WebBrowser.Navigate("javascript:hack.goesHere()"); trick.

Upvotes: 1

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