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From: sabine.michael.ratcli...@gmail.com
Newsgroups: mozilla.dev.apps.firefox
Subject: Re: Get all stylesheets (including UA sheets)?
Date: Mon, 12 Mar 2012 06:38:40 -0700 (PDT)
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On Monday, 12 March 2012 13:03:35 UTC, Gijs Kruitbosch  wrote:
> On 12/03/2012 13:31 PM, Mike Ratcliffe wrote:
> > Do we not have a way to list all stylesheets (including UA sheets)
> > used by a document? I could use domUtils.getCSSStyleRules() on every
> > element on the page, iterate the rules and gather the stylesheets that
> > way, but that seems like an awful hack.
> >
> > I am sure that there is something obvious but my Monday brain just
> > ain't finding it :o/
> 
> (disclaimer: very unfamiliar with layout, but this was a fun excuse to poke 
> around MXR)
> 
> You mean in JS or an external component? Because it seems you can ask 
> nsStylesheetService, but not nsIStylesheetService. In other words, if you're 
> inside layout, you could directly ask the component, but it isn't exposing that 
> info via its IDL, as far as I can tell, and it looks like UA ones aren't 
> included in document.styleSheets. Perhaps nsIStylesheetService could be made to 
> include this? I don't see a reason not to expose it (and many reasons why it may 
> be useful).
> 
> Cheers,
> Gijs

How did I miss that? Thanks ... https://bugzilla.mozilla.org/show_bug.cgi?id=734861.