W3C home > Mailing lists > Public > www-style@w3.org > February 2012

RE: [css3-regions][css3-page] region based page templates

From: Sylvain Galineau <sylvaing@microsoft.com>
Date: Thu, 23 Feb 2012 17:38:26 +0000
To: Brad Kemper <brad.kemper@gmail.com>, Tab Atkins Jr. <jackalmage@gmail.com>
CC: David Hyatt <hyatt@apple.com>, Vincent Hardy <vhardy@adobe.com>, www-style list <www-style@w3.org>
Message-ID: <3C4041FF83E1E04A986B6DC50F0178290342F320@TK5EX14MBXC295.redmond.corp.microsoft.com>
[Brad Kemper:]
> 
> 
> On Feb 23, 2012, at 8:44 AM, "Tab Atkins Jr." <jackalmage@gmail.com>
> wrote:
> 
> > On Mon, Feb 20, 2012 at 11:25 AM, Brad Kemper <brad.kemper@gmail.com>
> wrote:
> >> On Feb 20, 2012, at 9:51 AM, David Hyatt <hyatt@apple.com> wrote:
> >>
> >>> On Feb 17, 2012, at 6:39 PM, Sylvain Galineau wrote:
> >>>
> >>>>>   sylvaing: without dom elements, you can't receive clicks, etc.
> >>>>>
> >>>>> That seems like a solvable problem that should be solved for all
> generated pseudo-elements (like ::before and ::after too). Something like
> >'getElementsByTagName("body")[0].pseudos.slot[0]'.addEventListener(click,
> myfunction)'.
> >>>>
> >>>> That is the general concept, yes. Though such nodes are by
> >>>> definition not in the DOM and using the same plumbing means
> >>>> defining what bubbling and other things that assume a parent chain
> look like. I haven't thought about it much yet but my working assumption
> is that it could be trickier than it looks.
> >>>>
> >>>
> >>> Rather than adding event handlers to the anonymous boxes, I think it
> would be simpler if you just register event handlers with the nearest
> enclosing explicit DOM element, and then have a field that allows you to
> figure out which anonymous box was hit.
> 
> >>
> >> So... Something like this?
> >>
> >> getElementsByTagName("body")[0].addEventListener(click, myfunction,
> >> pseudos.slot[0])
> >>
> >> Or maybe I misunderstand you. Legacy browsers would ignore the extra
> argument, wouldn't they?
> >
> > I believe he means a property on the event object exposing which
> > pseudo on the event's target was hit.  So if you just wanted to listen
> > for clicks on a ::before, you'd write something like:
> >
> > el.onclick = function(e) {
> > if( e.target.pseudo == "before" ) {
> >  ...
> > }
> > }
> 
> Oh, OK. I like that. It is clean, and makes sense.
It makes sense; I'm not sure having string-based switch-case branching is
so clean if/when you'll deal with entire pages worth of auto-generated 
pseudos. So while I think it makes sense to have this capability (it'd be
useful even today imo) I'm not sure it's enough though it's a fine place to
start.
Received on Thursday, 23 February 2012 17:39:08 GMT

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