X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fsupport.js;h=91ee77d390c4f4789f7b189c08d26c87b929f23c;hb=616aceef84dca3960f6b78680f41bdcf85fa7838;hp=5fa45d230a7673d033f4171dd3dbb8dfeaa1c169;hpb=c2ebd0982609b98d6a389eea792d7a465dccc47a;p=jquery.git

diff --git a/src/support.js b/src/support.js
index 5fa45d2..91ee77d 100644
--- a/src/support.js
+++ b/src/support.js
@@ -40,7 +40,8 @@
 
 		// Make sure that element opacity exists
 		// (IE uses filter instead)
-		opacity: a.style.opacity === "0.55",
+		// Use a regex to work around a WebKit issue. See #5145
+		opacity: /^0.55$/.test( a.style.opacity ),
 
 		// Verify style float existence
 		// (IE uses styleFloat instead of cssFloat)
@@ -81,6 +82,7 @@
 
 	// Figure out if the W3C box model works as expected
 	// document.body must exist before we can do this
+	// TODO: This timeout is temporary until I move ready into core.js.
 	jQuery(function(){
 		var div = document.createElement("div");
 		div.style.width = div.style.paddingLeft = "1px";
@@ -91,6 +93,26 @@
 		div = 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; 
+	};
+	
+	jQuery.support.submitBubbles = eventSupported("submit");
+	jQuery.support.changeBubbles = eventSupported("change");
+	jQuery.support.focusBubbles = eventSupported("focus");
+
 	// release memory in IE
 	root = script = div = all = a = null;
 })();