Remove "This attribute may not be available..." disclaimers.
These attributes should always be implemented, even if no physical values are
known. The spec defines values for the attributes in all cases, and the
Conformance section requires all fields to be implemented.
--- a/touchevents.html Fri Apr 08 09:34:04 2011 -0700
+++ b/touchevents.html Tue Apr 12 09:59:27 2011 -0700
@@ -163,12 +163,12 @@
<dt>readonly attribute long radiusX</dt>
<dd>
- the radius of the ellipse which most closely circumscribes the touching area (e.g. finger, stylus) along the x-axis, in pixels of the same scale as <a>screenX</a>; <code>1</code> if no value is known. This attribute may not be available on all user agents or platforms.
+ the radius of the ellipse which most closely circumscribes the touching area (e.g. finger, stylus) along the x-axis, in pixels of the same scale as <a>screenX</a>; <code>1</code> if no value is known.
<p class="issue" id="issue-units"><strong>Issue:</strong> What are units of radiusX/radiusY? CSS Pixels?</p>
</dd>
<dt>readonly attribute long radiusY</dt>
<dd>
- the radius of the ellipse which most closely circumscribes the touching area (e.g. finger, stylus) along the y-axis, in pixels of the same scale as <a>screenY</a>; <code>1</code> if no value is known. This attribute may not be available on all user agents or platforms.
+ the radius of the ellipse which most closely circumscribes the touching area (e.g. finger, stylus) along the y-axis, in pixels of the same scale as <a>screenY</a>; <code>1</code> if no value is known.
</dd>
<dt>readonly attribute float rotationAngle</dt>
@@ -178,7 +178,7 @@
<dt>readonly attribute float force</dt>
<dd>
- a relative value of pressure applied, in the range <code>0</code> to <code>1</code>, where <code>0</code> is no pressure, and <code>1</code> is the highest level of pressure the touch device is capable of sensing; <code>0</code> if no value is known. This attribute may not be available on all user agents or platforms. In environments where <a>force</a> is available, the absolute pressure represented by the <a>force</a> attribute, and the sensitivity in levels of pressure, may vary.
+ a relative value of pressure applied, in the range <code>0</code> to <code>1</code>, where <code>0</code> is no pressure, and <code>1</code> is the highest level of pressure the touch device is capable of sensing; <code>0</code> if no value is known. In environments where <a>force</a> is known, the absolute pressure represented by the <a>force</a> attribute, and the sensitivity in levels of pressure, may vary.
<p class="issue" id="issue-inkml"><strong>Issue:</strong> Consider aligning with other "channels" and values from <a href="http://www.w3.org/TR/InkML/#channelContents">Ink Markup Language (InkML)</a>, in addition to <a>force</a>, e.g. adding <a>angle</a>, <a>clientZ</a>, <a>rotation</a>, etc.</p>
</dd>