[widgets] Preference element is underspecified :(

• From: Marcos Caceres <marcosc@opera.com>
• Date: Wed, 09 Sep 2009 17:55:05 +0200
• To: public-webapps <public-webapps@w3.org>
• Message-ID: <4AA7CFD9.1050402@opera.com>

During testing I discovered that the preference element is under 
specified (sorry, y'all!). It is not clear what the user agent is 
supposed to do when encountering the following:


<preference name="a" value="a"/>
<preference name="a" value="b"/>
<preference name="a" value="c" readonly="true"/>
<preference name="a" value="d"/>
<preference name="a" value="e" readonly="false"/>

Options:

   1. <preference name="a" value="a"/> wins (subsequent repetitions are 
ignored by the UA, which is how non-repeat elements work already).

   2. the 'widget preferences list' end up with 5 preferences named "a", 
but with different values. Then the Widgets A&E spec can sort out the mess.

   3. Each subsequent repetition resets the value of the preference, and 
if it is read-only or not. In the following case, when value is set to 
d, the use agent sets will set the readonly value to 'false':

<preference name="a" value="b"/>
<preference name="a" value="c" readonly="true"/>
<preference name="a" value="d"/>


My preference is 3 because that is how I would expect it to behave. 
However, 1 might be more "correct".

Kind regards,
Marcos

Received on Wednesday, 9 September 2009 15:55:52 UTC