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<title>[21475] trunk/wp-content/themes/twentytwelve/js/html5.js: Twenty Twelve: add polyfill JS for matchMedia rules, avoids JS error in older IE versions.</title>
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<dt>Revision</dt> <dd><a href="http://core.trac.wordpress.org/changeset/21475">21475</a></dd>
<dt>Author</dt> <dd>lancewillett</dd>
<dt>Date</dt> <dd>2012-08-08 16:13:32 +0000 (Wed, 08 Aug 2012)</dd>
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<h3>Log Message</h3>
<pre>Twenty Twelve: add polyfill JS for matchMedia rules, avoids JS error in older IE versions. See <a href="http://core.trac.wordpress.org/ticket/21440">#21440</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkwpcontentthemestwentytwelvejshtml5js">trunk/wp-content/themes/twentytwelve/js/html5.js</a></li>
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<h3>Diff</h3>
<a id="trunkwpcontentthemestwentytwelvejshtml5js"></a>
<div class="modfile"><h4>Modified: trunk/wp-content/themes/twentytwelve/js/html5.js (21474 => 21475)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/wp-content/themes/twentytwelve/js/html5.js 2012-08-08 07:17:33 UTC (rev 21474)
+++ trunk/wp-content/themes/twentytwelve/js/html5.js 2012-08-08 16:13:32 UTC (rev 21475)
</span><span class="lines">@@ -3,4 +3,7 @@
</span><span class="cx"> a.createElement=function(c){return!e.shivMethods?b.createElem(c):p(c,a,b)};a.createDocumentFragment=Function("h,f","return function(){var n=f.cloneNode(),c=n.createElement;h.shivMethods&&("+m().join().replace(/\w+/g,function(a){b.createElem(a);b.frag.createElement(a);return'c("'+a+'")'})+");return n}")(e,b.frag)}function q(a){a||(a=f);var b=i(a);if(e.shivCSS&&!j&&!b.hasCSS){var c,d=a;c=d.createElement("p");d=d.getElementsByTagName("head")[0]||d.documentElement;c.innerHTML="x<style>article,aside,figcaption,figure,footer,header,hgroup,nav,section{display:block}mark{background:#FF0;color:#000}</style>";
</span><span class="cx"> c=d.insertBefore(c.lastChild,d.firstChild);b.hasCSS=!!c}g||t(a,b);return a}var k=l.html5||{},s=/^<|^(?:button|map|select|textarea|object|iframe|option|optgroup)$/i,r=/^<|^(?:a|b|button|code|div|fieldset|form|h1|h2|h3|h4|h5|h6|i|iframe|img|input|label|li|link|ol|option|p|param|q|script|select|span|strong|style|table|tbody|td|textarea|tfoot|th|thead|tr|ul)$/i,j,o="_html5shiv",h=0,n={},g;(function(){try{var a=f.createElement("a");a.innerHTML="<xyz></xyz>";j="hidden"in a;var b;if(!(b=1==a.childNodes.length)){f.createElement("a");
</span><span class="cx"> var c=f.createDocumentFragment();b="undefined"==typeof c.cloneNode||"undefined"==typeof c.createDocumentFragment||"undefined"==typeof c.createElement}g=b}catch(d){g=j=!0}})();var e={elements:k.elements||"abbr article aside audio bdi canvas data datalist details figcaption figure footer header hgroup mark meter nav output progress section summary time video",shivCSS:!1!==k.shivCSS,supportsUnknownElements:g,shivMethods:!1!==k.shivMethods,type:"default",shivDocument:q,createElement:p,createDocumentFragment:function(a,
</span><del>-b){a||(a=f);if(g)return a.createDocumentFragment();for(var b=b||i(a),c=b.frag.cloneNode(),d=0,e=m(),h=e.length;d<h;d++)c.createElement(e[d]);return c}};l.html5=e;q(f)})(this,document);
</del><span class="cx">\ No newline at end of file
</span><ins>+b){a||(a=f);if(g)return a.createDocumentFragment();for(var b=b||i(a),c=b.frag.cloneNode(),d=0,e=m(),h=e.length;d<h;d++)c.createElement(e[d]);return c}};l.html5=e;q(f)})(this,document);
+
+/*! matchMedia() polyfill - Test a CSS media type/query in JS. Authors & copyright (c) 2012: Scott Jehl, Paul Irish, Nicholas Zakas. Dual MIT/BSD license */
+window.matchMedia=window.matchMedia||(function(e,f){var c,a=e.documentElement,b=a.firstElementChild||a.firstChild,d=e.createElement("body"),g=e.createElement("div");g.id="mq-test-1";g.style.cssText="position:absolute;top:-100em";d.style.background="none";d.appendChild(g);return function(h){g.innerHTML='&shy;<style media="'+h+'"> #mq-test-1 { width: 42px; }</style>';a.insertBefore(d,b);c=g.offsetWidth==42;a.removeChild(d);return{matches:c,media:h}}})(document);
</ins><span class="cx">\ No newline at end of file
</span></span></pre>
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