X-Git-Url: http://git.asbjorn.it/?a=blobdiff_plain;ds=sidebyside;f=src%2Fsupport.js;h=91ee77d390c4f4789f7b189c08d26c87b929f23c;hb=253e73af5173413b2938f911087d361e42cf0763;hp=04c3a2a69d6c16fc155f56d9ecbc9489b3699ff5;hpb=f8ef75eb9124ce924be5fb521c783efd5c996e33;p=jquery.git
diff --git a/src/support.js b/src/support.js
index 04c3a2a..91ee77d 100644
--- a/src/support.js
+++ b/src/support.js
@@ -5,10 +5,10 @@
var root = document.documentElement,
script = document.createElement("script"),
div = document.createElement("div"),
- id = "script" + (new Date).getTime();
+ id = "script" + now();
div.style.display = "none";
- div.innerHTML = '
a';
+ div.innerHTML = ' a';
var all = div.getElementsByTagName("*"),
a = div.getElementsByTagName("a")[0];
@@ -40,7 +40,8 @@
// Make sure that element opacity exists
// (IE uses filter instead)
- opacity: a.style.opacity === "0.5",
+ // 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";
@@ -88,7 +90,31 @@
document.body.appendChild( div );
jQuery.boxModel = jQuery.support.boxModel = div.offsetWidth === 2;
document.body.removeChild( div ).style.display = 'none';
+ 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;
})();
jQuery.props = {
@@ -98,5 +124,8 @@ jQuery.props = {
maxlength: "maxLength",
cellspacing: "cellSpacing",
rowspan: "rowSpan",
- tabindex: "tabIndex"
+ colspan: "colSpan",
+ tabindex: "tabIndex",
+ usemap: "useMap",
+ frameborder: "frameBorder"
};