W3C home > Mailing lists > Public > www-style@w3.org > April 2010

Re: Extending CSSOM Views matchMedium with callback Re: CSS WG comments on View Modes Media Feature spec

From: Simon Fraser <smfr@me.com>
Date: Mon, 12 Apr 2010 11:50:05 -0700
Cc: Daniel Glazman <daniel.glazman@disruptive-innovations.com>, public-webapps@w3.org, www-style@w3.org, Robin Berjon <robin@berjon.com>, Anne van Kesteren <annevk@opera.com>, Arthur Barstow <art.barstow@nokia.com>
Message-id: <A17CE622-3112-46BF-A81D-EA862426A552@me.com>
To: marcosc@opera.com

On Apr 12, 2010, at 2:25 AM, Marcos Caceres wrote:

> On Fri, Mar 26, 2010 at 2:25 PM, Marcos Caceres <marcosc@opera.com> wrote:
>> On Thu, Mar 18, 2010 at 4:02 PM, Simon Fraser <smfr@me.com> wrote:
>>> On Mar 18, 2010, at 6:44 AM, Marcos Caceres wrote:
>>> 
>>>>> 4. all these queries could/should have an event-based counterpart so the
>>>>>   changes are detectable by code. We understand this is outside of the
>>>>>   scope of this spec but that's still an important comment.
>>>> 
>>>> We have a proposal already for the CSS WG to review:
>>>> http://dev.w3.org/2006/waf/widgets-vm/vm-interfaces.src.html
>>> 
>>> It seems like this needs to align to the current CSS OM View spec:
>>> <http://dev.w3.org/csswg/cssom-view/>
>>> 
>>> which has a StyleMedia interface available on the window object as 'styleMedia', rather than 'media'.
>>> 
>>> I would expect to see events related to media type changes in the CSS OM View spec too, rather than in a widgets-related spec.
>> 
>> I totally agree, there is much overlap. We should start looking at how
>> to merge the two specs (or our requirements) into the CSS OM View
>> spec. I would be happy for the widgets one to vanish if the CSS OM
>> View spec would handled our use cases.
>> 
>> Perhaps we should have a joint teleconf or something to arrange how to
>> proceed...  I'll leave that up to the chairs, however.
> 
> To make Widget View Modes Interfaces [1] redundant, we would like to
> propose extending CSSOM Views' matchMedium method to have a callback
> as a second argument.
> 
> This would address the following sections of [1] in the following ways:
> 
> # 3.2. Media Type Changed Event Types
> styleMedia.matchMedium("screen", function() { alert("no
> longer screen!") })
> 
> # 3.3. View Mode Changed Event Types
> styleMedia.matchMedium("(viewmodesyntax)", ... )
> 
> # 3.4. Resolution Changed Event Types
> styleMedia.matchMedium("(resolution:300dpi)", ... )
> 
> # 3.5. Orientation Changed Event Types
> styleMedia.matchMedium("(orientation:landscape)", ... )
> 
> The proposal has it's origins on the Mozilla bug list (see comment
> from David Baron):
> https://bugzilla.mozilla.org/show_bug.cgi?id=542058#c3

This is overlapping with ViewModeChanged events:
<http://dev.w3.org/2006/waf/widgets-vm/vm-interfaces.src.html#viewmodechangedeventtypes>

Do we really need both?

Simon
Received on Monday, 12 April 2010 18:50:47 GMT

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