I have an interface reference (instanceof Document) pointing to a valid object. The problem is that I want to view the style attribute associated with a particular element in DOM, but it will only expose inline attributes (while style has been set through an external stylesheet). The end goal is to acquire a reference to ViewCSS, as I want to view the associated computed style - how would I do this? I'm presuming, that acquiring a DocumentView object might be needed (if so, how, as I did not find any method that will return the aforementioned object)?
Document document = ...; document.getImplementation().hasFeature("Views", "2.0"));
this returns true.
Object obj = document.getImplementation().getFeature("Views", "2.0");
this throws an java.lang.UnsupportedOperationException: Not supported yet.
What am I doing wrong, how to fix it and what is the best way to go about this (I want to view/change the associated computed style for this document)? Thank you.
I think this is an important part of details that should have been provided initially:
java.lang.UnsupportedOperationException: Not supported yet. at com.sun.webpane.webkit.dom.NodeImpl.getFeature(Unknown Source)
the Document object returned was from a javafx package triggered on WebEngine.
May be this fragment solves your problem:
Document doc = ???; HTMLDocument htmlDoc = (HTMLDocument)doc; final HTMLBodyElement body = (HTMLBodyElement)htmlDoc.getBody(); //JS [window] access DOMWindowImpl wnd = (DOMWindowImpl)((DocumentView)htmlDoc).getDefaultView(); //Style access CSSStyleDeclaration style = wnd.getComputedStyle(body, ""); assertEquals("Style extraction", "blue", style.getPropertyValue("background-color"));