I'm having difficulty extending firebug.
The extension should find out how much of a stylesheet's rules is
being used in the page. A 'CSS-coverage analysis' kind of thing (as
robcee in #firebug put it).
I've explored the js files and figured what I'm trying to do is
related to html.js and css.js.
I am able to get an array of all the elements in the page by doing:
context.window.document.getElementsByTagName('*');
I think the methods that would be able to give me the rules for each
element are found in css.js CSSElementPanel.getInheritedRules and
CSSElementPanel.getElementRules, like how
CSSElementPanel.updateCascadeView is using them. But how do I access
those methods?
I'd rather stick to the DRY and not copy/paste those methods over to
my extension's js file. Am I on the right track?
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