]> source.dussan.org Git - jquery.git/commitdiff
Oops, forgot to commit support.js.
authorJohn Resig <jeresig@gmail.com>
Sun, 21 Dec 2008 23:06:42 +0000 (23:06 +0000)
committerJohn Resig <jeresig@gmail.com>
Sun, 21 Dec 2008 23:06:42 +0000 (23:06 +0000)
src/support.js [new file with mode: 0644]

diff --git a/src/support.js b/src/support.js
new file mode 100644 (file)
index 0000000..20289c9
--- /dev/null
@@ -0,0 +1,99 @@
+(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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