X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fsupport.js;h=097866c284363b00e489dee1bb83557d5980523c;hb=61e37d41490aed319a176c6ca7feb95e5505059c;hp=18c494d5198ed69bcf39031837ea26fc6b2a133b;hpb=1bd4325cb979ed66588d6b3454b3eb4291a47151;p=jquery.git
diff --git a/src/support.js b/src/support.js
index 18c494d..097866c 100644
--- a/src/support.js
+++ b/src/support.js
@@ -1,14 +1,14 @@
-(function(){
+(function() {
jQuery.support = {};
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];
@@ -20,7 +20,7 @@
jQuery.support = {
// IE strips leading whitespace when .innerHTML is used
- leadingWhitespace: div.firstChild.nodeType == 3,
+ leadingWhitespace: div.firstChild.nodeType === 3,
// Make sure that tbody elements aren't automatically inserted
// IE will insert them into empty tables
@@ -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)
@@ -55,7 +56,7 @@
script.type = "text/javascript";
try {
script.appendChild( document.createTextNode( "window." + id + "=1;" ) );
- } catch(e){}
+ } catch(e) {}
root.insertBefore( script, root.firstChild );
@@ -70,7 +71,7 @@
root.removeChild( script );
if ( div.attachEvent && div.fireEvent ) {
- div.attachEvent("onclick", function click(){
+ div.attachEvent("onclick", function click() {
// Cloning a node shouldn't copy over any
// bound event handlers (IE does this)
jQuery.support.noCloneEvent = false;
@@ -81,7 +82,8 @@
// Figure out if the W3C box model works as expected
// document.body must exist before we can do this
- jQuery(function(){
+ // 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 +93,25 @@
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");
+
// release memory in IE
root = script = div = all = a = null;
})();
@@ -102,5 +123,8 @@ jQuery.props = {
maxlength: "maxLength",
cellspacing: "cellSpacing",
rowspan: "rowSpan",
- tabindex: "tabIndex"
+ colspan: "colSpan",
+ tabindex: "tabIndex",
+ usemap: "useMap",
+ frameborder: "frameBorder"
};