X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fsupport.js;h=85deb1b98908a3c2aeb05fb8ff601fa54676b44b;hb=5057ff9f43017f673894584358ca95c8753b65d4;hp=febff15973f3e7722883118744da1e67511d738b;hpb=a44ec402771f6d622506f39073d0be260400dd21;p=jquery.git

diff --git a/src/support.js b/src/support.js
index febff15..85deb1b 100644
--- a/src/support.js
+++ b/src/support.js
@@ -13,7 +13,9 @@
 	div.innerHTML = "   <link/><table></table><a href='/a' style='color:red;float:left;opacity:.55;'>a</a><input type='checkbox'/>";
 
 	var all = div.getElementsByTagName("*"),
-		a = div.getElementsByTagName("a")[0];
+		a = div.getElementsByTagName("a")[0],
+		select = document.createElement("select"),
+		opt = select.appendChild( document.createElement("option") );
 
 	// Can't get basic test support
 	if ( !all || !all.length || !a ) {
@@ -56,15 +58,24 @@
 
 		// Make sure that a selected-by-default option has a working selected property.
 		// (WebKit defaults to false instead of true, IE too, if it's in an optgroup)
-		optSelected: document.createElement("select").appendChild( document.createElement("option") ).selected,
+		optSelected: opt.selected,
 
 		// Will be defined later
+		optDisabled: false,
 		checkClone: false,
 		scriptEval: false,
 		noCloneEvent: true,
-		boxModel: null
+		boxModel: null,
+		inlineBlockNeedsLayout: false,
+		shrinkWrapBlocks: false,
+		reliableHiddenOffsets: true
 	};
 
+	// Make sure that the options inside disabled selects aren't marked as disabled
+	// (WebKit marks them as diabled)
+	select.disabled = true;
+	jQuery.support.optDisabled = !opt.disabled;
+
 	script.type = "text/javascript";
 	try {
 		script.appendChild( document.createTextNode( "window." + id + "=1;" ) );
@@ -109,32 +120,69 @@
 
 		document.body.appendChild( div );
 		jQuery.boxModel = jQuery.support.boxModel = div.offsetWidth === 2;
+
+		if ( 'zoom' in div.style ) {
+			// Check if natively block-level elements act like inline-block
+			// elements when setting their display to 'inline' and giving
+			// them layout
+			// (IE < 8 does this)
+			div.style.display = 'inline';
+			div.style.zoom = 1;
+			jQuery.support.inlineBlockNeedsLayout = div.offsetWidth === 2;
+
+			// Check if elements with layout shrink-wrap their children
+			// (IE 6 does this)
+			div.style.display = '';
+			div.innerHTML = '<div style="width:4px;"></div>';
+			jQuery.support.shrinkWrapBlocks = div.offsetWidth !== 2;
+		}
+
+		div.innerHTML = '<table><tr><td style="padding:0;display:none"></td><td>t</td></tr></table>';
+		var tds = div.getElementsByTagName('td');
+
+		// Check if table cells still have offsetWidth/Height when they are set
+		// to display:none and there are still other visible table cells in a
+		// table row; if so, offsetWidth/Height are not reliable for use when
+		// determining if an element has been hidden directly using
+		// display:none (it is still safe to use offsets if a parent element is
+		// hidden; don safety goggles and see bug #4512 for more information).
+		// (only IE 8 fails this test)
+		jQuery.support.reliableHiddenOffsets = tds[0].offsetHeight === 0;
+
+		tds[0].style.display = '';
+		tds[1].style.display = 'none';
+
+		// Check if empty table cells still have offsetWidth/Height
+		// (IE < 8 fail this test)
+		jQuery.support.reliableHiddenOffsets = jQuery.support.reliableHiddenOffsets && tds[0].offsetHeight === 0;
+		div.innerHTML = '';
+
 		document.body.removeChild( div ).style.display = 'none';
-		div = null;
+		div = tds = null;
 	});
 
 	// Technique from Juriy Zaytsev
 	// http://thinkweb2.com/projects/prototype/detecting-event-support-without-browser-sniffing/
-	var eventSupported = function( eventName ) { 
-		var el = document.createElement("div"); 
-		eventName = "on" + eventName; 
-
-		var isSupported = (eventName in el); 
-		if ( !isSupported ) { 
-			el.setAttribute(eventName, "return;"); 
-			isSupported = typeof el[eventName] === "function"; 
-		} 
-		el = null; 
-
-		return isSupported; 
+	var eventSupported = function( eventName ) {
+		var el = document.createElement("div");
+		eventName = "on" + eventName;
+
+		var isSupported = (eventName in el);
+		if ( !isSupported ) {
+			el.setAttribute(eventName, "return;");
+			isSupported = typeof el[eventName] === "function";
+		}
+		el = null;
+
+		return isSupported;
 	};
-	
+
 	jQuery.support.submitBubbles = eventSupported("submit");
 	jQuery.support.changeBubbles = eventSupported("change");
 
 	// release memory in IE
 	root = script = div = all = a = null;
-})( jQuery );
+})();
 
 jQuery.props = {
 	"for": "htmlFor",