Bill, I'll put on an upcoming Core WG meeting to discuss.
I think it is a reasonable request to add in a couple of recommended properties, such as: <oslc:icon rdf:resource="http://example.com/icons/defect.jpg"; /> <oslc:iconAltLabel>Defect</oslc:iconAltLabel> <oslc:iconTitle>Defect Icon</oslc:iconTitle> Further extended what is defined in [1]. Be interested if others have concerns with this approach or any alternative suggestions. [1] - http://open-services.net/bin/view/Main/OslcCoreUiPreview Thanks, Steve Speicher | IBM Rational Software | (919) 254-0645 > From: "Bill Andreas" <[email protected]> > To: [email protected], > Date: 02/15/2012 04:27 PM > Subject: [oslc-core] Need to add alt/title property to the Compact UI > Preview specifcation > Sent by: [email protected] > > The current specification of an OSLC Compact UI Preview defines an icon as > part of the specification but does not provide a means to provide any > accessibility information about that icon. As a consequence, when the > compact preview information is displayed, the visualization is not > accessible (fails to provide an alternative explanation of an image). > > The nub of the issue here is that the compact UI Preview defines an icon as > simply a resource (a reference to an image file) but it does not allow > information about that icon to be provided that is needed for to render > "accessible" HTML markup. > > Property > > Value-type > > Occurs > > Description > > oslc:icon > > Resource > > zero-or-one > > URI of an image which may be used in the display of a link to the resource. > The image SHOULD be 16x16 pixels in size. > > > > When the UI renders the icon, we'll display something like: > > <img class="iconNode" dojoattachpoint="iconNode" src="https:// > rqmx64a.rtp.raleigh.ibm.com:9443/qm/web/com.ibm.asq.common.web/ui/internal/ > images/icons/obj16/qm_testcase16.gif"> > > The accessibility issue is that there is no title or alt property associated > with the image. The icon conveys information (it's commonly a visual > representation of the "type" of the thing being previewed). Since the icon > conveys information accessibility standards require that the alt or title > (or both) properties be set on the img tag with a meaningful string assigned to them. > > None of the values currently in the compact rendering specification are > suitable for use as the alt/title text for the icon. (So we leave alt/title > unvalued and accessibility checking software immediately flags the rendered > icon as failing accessibility). > > There are a couple of ways this could be solved. One mechanism used in some > other standards is to simply allow the title/alt text (and potentially other > HTML attributes) to be specified as arguments on the URI used to specify the > image, e.g., "foobar.com/fancy_icon.gif?title=Fancy Pants Icon". The other > mechanism would be to add an attribute to the specification "Icon-alt-text" > or some such thing. > > In most uses, a single string is used as both the alt and title property of > an img tag (the two properties serve a very similar purpose), so only one > value is needed. There are odd cases where someone might really want the > alt text to be lengthier then the title text (the title text is displayed in > a tooltip, the alt text is handed to screen readers and displayed if the > icon doesn't load). > > The need for specifying the alt/title text for the icon is rather pressing. > Longer term, there may be a need to allow other kinds of HTML properties to > be specified (which is why some standards just throw these properties, as > needed, onto the URI instead of making them separate attributes). For > example, there is talk that both the lang and dir attributes may need to be > set on icons (some globalization people have been clamoring for this). So > in deciding how to best handle alt/title text, we may want to think about > possible (similar) future needs,. > > -- Bill Andreas > > Senior Designer > Rational Software > _______________________________________________ > Oslc-Core mailing list > [email protected] > http://open-services.net/mailman/listinfo/oslc-core_open-services.net
![http://example.com/icons/defect.jpg"](http://example.com/icons/defect.jpg"){kind=link}