[webkit-dev] Adding ENABLE_CSS_DIRECTIONAL_FOCUS to WebCore.

[Kyounga Ra]

-Which browsers are shipping the feature?
-Which browsers are planning to ship the feature?
A) other major browsers? opera presto
    also Webkit-based TV browsers support it.

-Is it a mature standard (or an amazing feature) that one of the WebKit
ports wants to maintain?
A) not matured yet. but these properties are widely used by the TV
industry.
     TV industry people like me want to maintain.



2013/7/24 Benjamin Poulain <benjamin at webkit.org>

> Hi,
>
>
> On Mon, Jul 22, 2013 at 11:17 PM, Kyounga Ra <kyounga.ra at gmail.com> wrote:
>
>> I'd like to add new feature for CSS nav-[dir] properties.
>> https://bugs.webkit.org/show_bug.cgi?id=66027
>>
>> This feature is for
>> http://dev.w3.org/csswg/css3-ui/#nav-dir
>> On recent discussion, these nav-* properties was dropped from level 3.
>> http://lists.w3.org/Archives/Public/www-style/2013Apr/0428.html
>>
>> But, I need this feature. (I'm in the TV industry.)
>> Honestly, already implemented and have used it.
>> You can see my previous patch.
>>
>> At that time, I thought that this is W3C standard and we didn't need to
>> develop it behind a defined feature name.
>> Now, this property was dropped from CSS.
>> So, is it okay implementing this feature behind
>> ENABLE_CSS_DIRECTIONAL_FOCUS?
>>
>> I re-ported this feature  whenever I rebase my webkit.
>> It's troublesome job.
>>
>> how about you
>> Adding "ENABLE_CSS_DIRECTIONAL_FOCUS" is not bad?
>>
>
> Adding new features has a big cost on the project, that is not the kind of
> thing we do lightly.
>
> Feature flags are there to allow ports to disable a feature before
> shipping a product. For example, if Apple decide adds a feature and GTK
> decides it is not ready for shipping, the feature can be disabled for
> releasing of WebKitGTK. Feature flags are not not a free pass to add code
> that is not shipped by any port.
>
> The important questions to add CSS-nav are:
> -Which browsers are shipping the feature?
> -Which browsers are planning to ship the feature?
> -Is it a mature standard (or an amazing feature) that one of the WebKit
> ports wants to maintain?
>
> Benjamin
>
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