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

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

From: Tab Atkins Jr. <jackalmage@gmail.com>
Date: Thu, 23 Feb 2012 08:44:11 -0800
Message-ID: <CAAWBYDC9+2AX7=NR1UHYMt27uXTRuSYvVQV4E_1_ZysyYtf4sQ@mail.gmail.com>
To: Brad Kemper <brad.kemper@gmail.com>
Cc: David Hyatt <hyatt@apple.com>, Sylvain Galineau <sylvaing@microsoft.com>, Vincent Hardy <vhardy@adobe.com>, www-style list <www-style@w3.org>
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" ) {
  ...
 }
}

~TJ
Received on Thursday, 23 February 2012 16:45:03 GMT

This archive was generated by hypermail 2.3.1 : Tuesday, 26 March 2013 17:20:51 GMT