/*
* jQuery Mobile Framework : support tests
* Copyright (c) jQuery Project
* Dual licensed under the MIT (MIT-LICENSE.txt) and GPL (GPL-LICENSE.txt) licenses.
* Note: Code is in draft form and is subject to change
*/
(function($, undefined ) {
var fakeBody = $( "" ).prependTo( "html" ),
fbCSS = fakeBody[0].style,
vendors = ['webkit','moz','o'],
webos = window.palmGetResource || window.PalmServiceBridge, //only used to rule out scrollTop
bb = window.blackberry; //only used to rule out box shadow, as it's filled opaque on BB
//thx Modernizr
function propExists( prop ){
var uc_prop = prop.charAt(0).toUpperCase() + prop.substr(1),
props = (prop + ' ' + vendors.join(uc_prop + ' ') + uc_prop).split(' ');
for(var v in props){
if( fbCSS[ v ] !== undefined ){
return true;
}
}
};
//test for dynamic-updating base tag support (allows us to avoid href,src attr rewriting)
function baseTagTest(){
var fauxBase = location.protocol + '//' + location.host + location.pathname + "ui-dir/",
base = $("head base"),
fauxEle = null,
href = '';
if (!base.length) {
base = fauxEle = $("", {"href": fauxBase}).appendTo("head");
}
else {
href = base.attr("href");
}
var link = $( "" ).prependTo( fakeBody ),
rebase = link[0].href;
base[0].href = href ? href : location.pathname;
if (fauxEle) {
fauxEle.remove();
}
return rebase.indexOf(fauxBase) === 0;
};
$.extend( $.support, {
orientation: "orientation" in window,
touch: "ontouchend" in document,
cssTransitions: "WebKitTransitionEvent" in window,
pushState: !!history.pushState,
mediaquery: $.mobile.media('only all'),
cssPseudoElement: !!propExists('content'),
boxShadow: !!propExists('boxShadow') && !bb,
scrollTop: ("pageXOffset" in window || "scrollTop" in document.documentElement || "scrollTop" in fakeBody[0]) && !webos,
dynamicBaseTag: baseTagTest()
});
fakeBody.remove();
//for ruling out shadows via css
if( !$.support.boxShadow ){ $('html').addClass('ui-mobile-nosupport-boxshadow'); }
})( jQuery );