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[gw] (2) Define pixelratio='' for values <= 0.

git-svn-id: http://svn.whatwg.org/webapps@2406 340c8d12-0b0e-0410-8428-c7bf67bfef74
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Hixie committed Nov 17, 2008
1 parent 64f6157 commit a1314c30058fe7e1d8596d9ef62ba9314eaddd60
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<div class=head>
<p><a class=logo href=http://www.whatwg.org/ rel=home><img alt=WHATWG src=/images/logo></a></p>
<h1>HTML 5</h1>
<h2 class="no-num no-toc" id=draft-recommendation-&mdash;-date:-01-jan-1901>Draft Recommendation &mdash; 15 November 2008</h2>
<h2 class="no-num no-toc" id=draft-recommendation-&mdash;-date:-01-jan-1901>Draft Recommendation &mdash; 17 November 2008</h2>
<p>You can take part in this work. <a href=http://www.whatwg.org/mailing-list>Join the working group's discussion list.</a></p>
<p><strong>Web designers!</strong> We have a <a href=http://blog.whatwg.org/faq/>FAQ</a>, a <a href=http://forums.whatwg.org/>forum</a>, and a <a href=http://www.whatwg.org/mailing-list#help>help mailing list</a> for you!</p>
<dl><dt>Multiple-page version:</dt>
<a href=#media-resource title="media resource">media resources</a> that do not
self-describe their <a href=#concept-video-adjusted-ratio title=concept-video-adjusted-ratio>pixel
ratio</a>. The attribute value, if specified, must be a
<a href=#valid-floating-point-number>valid floating point number</a> giving the ratio of the
correct rendered width of each pixel to the actual height of each
pixel in the image. The default value, if the attribute is omitted
or cannot be parsed, is 1.0.</p>
<a href=#valid-floating-point-number>valid floating point number</a> greater than zero giving
the ratio of the correct rendered width of each pixel to the actual
height of each pixel in the image. The default value, if the
attribute is omitted or cannot be parsed, is 1.0.</p>

<p class=note>The only way this default is used is in deciding
what number the <code title=dom-source-pixelRatio><a href=#dom-source-pixelratio>pixelRatio</a></code> DOM attribute will

<li><p>If <var title="">candidate</var> has a <code title=attr-source-pixelratio><a href=#attr-source-pixelratio>pixelratio</a></code> attribute, and the
result of applying the <a href=#rules-for-parsing-floating-point-number-values>rules for parsing floating point
number values</a> to the value of that attribute is not an
error, then let the <var title="">candidate pixel ratio
number values</a> to the value of that attribute is a number
greater than zero, then let the <var title="">candidate pixel ratio
override</var> be that result. Otherwise, let it be
<i>none</i>.</li>

12 source
<span title="media resource">media resources</span> that do not
self-describe their <span title="concept-video-adjusted-ratio">pixel
ratio</span>. The attribute value, if specified, must be a
<span>valid floating point number</span> giving the ratio of the
correct rendered width of each pixel to the actual height of each
pixel in the image. The default value, if the attribute is omitted
or cannot be parsed, is 1.0.</p>
<span>valid floating point number</span> greater than zero giving
the ratio of the correct rendered width of each pixel to the actual
height of each pixel in the image. The default value, if the
attribute is omitted or cannot be parsed, is 1.0.</p>

<p class="note">The only way this default is used is in deciding
what number the <code
<li><p>If <var title="">candidate</var> has a <code
title="attr-source-pixelratio">pixelratio</code> attribute, and the
result of applying the <span>rules for parsing floating point
number values</span> to the value of that attribute is not an
error, then let the <var title="">candidate pixel ratio
number values</span> to the value of that attribute is a number
greater than zero, then let the <var title="">candidate pixel ratio
override</var> be that result. Otherwise, let it be
<i>none</i>.</p></li>

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