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Oops, forgot to commit support.js.

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1 parent b850ab2 commit c9dd5d997229919b8dd4cc402b7b7a465982071a @jeresig jeresig committed Dec 21, 2008
Showing with 99 additions and 0 deletions.
  1. +99 −0 src/support.js
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+(function(){
+
+ jQuery.support = {};
+
+ var root = document.documentElement,
+ script = document.createElement("script"),
+ div = document.createElement("div"),
+ id = "script" + (new Date).getTime();
+
+ div.style.display = "none";
+ div.innerHTML = ' <link/><table></table><a href="/a" style="color:red;float:left;opacity:.5;">a</a><select><option>text</option></select><object><param></object>';
+
+ var all = div.getElementsByTagName("*"),
+ a = div.getElementsByTagName("a")[0];
+
+ // Can't get basic test support
+ if ( !all || !all.length || !a ) {
+ return;
+ }
+
+ jQuery.support = {
+ // IE strips leading whitespace when .innerHTML is used
+ leadingWhitespace: div.firstChild.nodeType == 3,
+
+ // Make sure that tbody elements aren't automatically inserted
+ // IE will insert them into empty tables
+ tbody: !div.getElementsByTagName("tbody").length,
+
+ // Make sure that you can get all elements in an <object> element
+ // IE 7 always returns no results
+ objectAll: !!div.getElementsByTagName("object")[0]
+ .getElementsByTagName("*").length,
+
+ // Make sure that link elements get serialized correctly by innerHTML
+ // This requires a wrapper element in IE
+ htmlSerialize: !!div.getElementsByTagName("link").length,
+
+ // Get the style information from getAttribute
+ // (IE uses .cssText insted)
+ style: /red/.test( a.getAttribute("style") ),
+
+ // Make sure that URLs aren't manipulated
+ // (IE normalizes it by default)
+ hrefNormalized: a.getAttribute("href") === "/a",
+
+ // Make sure that element opacity exists
+ // (IE uses filter instead)
+ opacity: a.style.opacity === "0.5",
+
+ // Verify style float existence
+ // (IE uses styleFloat instead of cssFloat)
+ cssFloat: !!a.style.cssFloat,
+
+ // Will be defined later
+ scriptEval: false,
+ noCloneEvent: true
+ };
+
+ script.type = "text/javascript";
+ try {
+ script.appendChild( document.createTextNode( "window." + id + "=1;" ) );
+ } catch(e){}
+
+ root.insertBefore( script, root.firstChild );
+
+ // Make sure that the execution of code works by injecting a script
+ // tag with appendChild/createTextNode
+ // (IE doesn't support this, fails, and uses .text instead)
+ if ( window[ id ] ) {
+ jQuery.support.scriptEval = true;
+ delete window[ id ];
+ }
+
+ root.removeChild( script );
+
+ if ( div.attachEvent && div.fireEvent ) {
+ div.attachEvent("onclick", function(){
+ // Cloning a node shouldn't copy over any
+ // bound event handlers (IE does this)
+ jQuery.support.noCloneEvent = false;
+ });
+ div.cloneNode(true).fireEvent("onclick");
+ }
+
+})();
+
+var styleFloat = jQuery.support.cssFloat ? "cssFloat" : "styleFloat";
+
+jQuery.props = {
+ "for": "htmlFor",
+ "class": "className",
+ "float": styleFloat,
+ cssFloat: styleFloat,
+ styleFloat: styleFloat,
+ readonly: "readOnly",
+ maxlength: "maxLength",
+ cellspacing: "cellSpacing",
+ rowspan: "rowSpan"
+};

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