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css.js
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css.js
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var MM = MM || {};
MM.css = (
function() {
function computedStyle(elt) {
if("getComputedStyle" in window) return window.getComputedStyle(elt);
return elt.currentStyle;
}
// http://davidwalsh.name/vendor-prefix
var prefix = (function () {
var styles = getComputedStyle(document.documentElement),
pre = (Array.prototype.slice
.call(styles)
.join('')
.match(/-(moz|webkit|ms)-/) || (styles.OLink === '' && ['', 'o'])
)[1];
return pre[0].toUpperCase() + pre.substr(1);
})();
var needPrefixes = [
"appearance",
"backfaceVisibility",
"perspective",
"perspectiveOrigin",
"perspectiveOriginX",
"perspectiveOriginY",
"transform",
"transformOrigin",
"transformOriginX",
"transformOriginY",
"transformOriginZ",
"transition",
];
var noPx = [
"columnCount",
"fillOpacity",
"fontWeight",
"lineHeight",
"opacity",
"orphans",
"widows",
"zIndex",
"zoom",
];
return (function(elt, prop, value) {
function get(elt, prop) {
return computedStyle(elt)[prop];
}
function _set(elt, prop, value) {
if(typeof value == "number" && noPx.indexOf(prop) == -1) value += "px";
elt.style[prop] = value;
}
function set(elt, prop, value) {
if(needPrefixes.indexOf(prop) > -1) {
_set(elt, prefix + prop[0].toUpperCase() + prop.substr(1), value);
}
_set(elt, prop, value);
}
if(arguments.length == 3) {
set(elt, prop, value);
} else if(arguments.length == 2) {
if(typeof prop == "object") {
for(var key in prop) {
set(elt, key, prop[key]);
}
} else {
return get(elt, prop);
}
}
return elt;
});
}
)();