- From: Rik Cabanier <cabanier@gmail.com>
- Date: Mon, 4 Nov 2013 10:43:18 -0800
- To: Dirk Schulze <dschulze@adobe.com>
- Cc: "public-fx@w3.org" <public-fx@w3.org>, www-style list <www-style@w3.org>
- Message-ID: <CAGN7qDD=+E8pj5P0RTqpgv3KLg4X7BCWWC-2yLF1Qs0HUG9ANA@mail.gmail.com>
On Mon, Nov 4, 2013 at 10:28 AM, Dirk Schulze <dschulze@adobe.com> wrote: > > On Nov 4, 2013, at 7:02 PM, Rik Cabanier <cabanier@gmail.com> wrote: > > The assistive software draws it own separate focus for accessibility. > That one is not affected by the style of the element. > > > Many people need assistance but don’t use AS. In fact most do. Therefore, > we should not count on that IMO. > I don't know enough to have an informed opinion. Maybe this is a question for the accessibility mailing list? > > On Mon, Nov 4, 2013 at 9:31 AM, Dirk Schulze <dschulze@adobe.com> wrote: > >> >> On Nov 4, 2013, at 6:19 PM, Rik Cabanier <cabanier@gmail.com> wrote: >> >> Hi Dirk, >> >> are you worried about this for accessibility reasons or because you >> believe it doesn't look right aesthetically ? >> >> >> Just for accessibility reasons. >> >> Greetings, >> Dirk >> >> >> >> On Mon, Nov 4, 2013 at 1:09 AM, Dirk Schulze <dschulze@adobe.com> wrote: >> >>> Hi, >>> >>> While working on Filter Effects, I realized that the specifications CSS3 >>> Color, CSS Compositing, CSS Masking and Filter Effects mention that they >>> affect all painting layers of an element. This of course include >>> background, border, content and would also include the outline. >>> >>> A focus ring is drawn on selected elements (i.e setting ’tabindex’ >>> attribute on an element and tab to it). The focus ring is necessary for >>> accessibility reasons. >>> >>> All the graphical effects (‘mix-blend-mode’, ‘clip’, ‘mask’, >>> ‘mask-box-image’, ‘opacity’, ‘clip-path') seem to influence the focus ring >>> on UAs today (tested on WebKit, Blink Gecko). >>> >>> Some specification parts suggest that the ‘outline’ property can be used >>> to style a focus (:focus { outline: …} ). I am not sure if ‘outline’ is >>> really responsible for the focus ring. Looking at the visual output of the >>> property it could very well be. >>> >>> I start to wonder if that is really the desired effect and what it means >>> to accessibility if the focus ring gets transparent, blurred, clipped or >>> blended with the back drop. >>> >>> I see the burden to implementers to change the current behavior. On the >>> other hand it feels like all these effects should NOT have any influence on >>> color or density of the focus ring. >>> >>> Greetings, >>> Dirk >>> >>> >>> >>> >> >> > >
Received on Monday, 4 November 2013 18:43:47 UTC