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steal('jquery/dom').then(function( $ ) {
var getComputedStyle = document.defaultView && document.defaultView.getComputedStyle,
rupper = /([A-Z])/g,
rdashAlpha = /-([a-z])/ig,
fcamelCase = function( all, letter ) {
return letter.toUpperCase();
},
getStyle = function( elem ) {
if ( getComputedStyle ) {
return getComputedStyle(elem, null);
}
else if ( elem.currentStyle ) {
return elem.currentStyle;
}
},
rfloat = /float/i,
rnumpx = /^-?\d+(?:px)?$/i,
rnum = /^-?\d/;
/**
* @add jQuery
*/
//
/**
* @function curStyles
* @param {HTMLElement} el
* @param {Array} styles An array of style names like <code>['marginTop','borderLeft']</code>
* @return {Object} an object of style:value pairs. Style names are camelCase.
*/
$.curStyles = function( el, styles ) {
if (!el ) {
return null;
}
var currentS = getStyle(el),
oldName, val, style = el.style,
results = {},
i = 0,
left, rsLeft, camelCase, name;
for (; i < styles.length; i++ ) {
name = styles[i];
oldName = name.replace(rdashAlpha, fcamelCase);
if ( rfloat.test(name) ) {
name = jQuery.support.cssFloat ? "float" : "styleFloat";
oldName = "cssFloat";
}
if ( getComputedStyle ) {
name = name.replace(rupper, "-$1").toLowerCase();
val = currentS.getPropertyValue(name);
if ( name === "opacity" && val === "" ) {
val = "1";
}
results[oldName] = val;
} else {
camelCase = name.replace(rdashAlpha, fcamelCase);
results[oldName] = currentS[name] || currentS[camelCase];
if (!rnumpx.test(results[oldName]) && rnum.test(results[oldName]) ) { //convert to px
// Remember the original values
left = style.left;
rsLeft = el.runtimeStyle.left;
// Put in the new values to get a computed value out
el.runtimeStyle.left = el.currentStyle.left;
style.left = camelCase === "fontSize" ? "1em" : (results[oldName] || 0);
results[oldName] = style.pixelLeft + "px";
// Revert the changed values
style.left = left;
el.runtimeStyle.left = rsLeft;
}
}
}
return results;
};
/**
* @add jQuery.fn
*/
$.fn
/**
* @parent dom
* @plugin jquery/dom/cur_styles
* @download http://jmvcsite.heroku.com/pluginify?plugins[]=jquery/dom/cur_styles/cur_styles.js
* @test jquery/dom/cur_styles/qunit.html
* Use curStyles to rapidly get a bunch of computed styles from an element.
* <h3>Quick Example</h3>
* @codestart
* $("#foo").curStyles('float','display') //->
* // {
* // cssFloat: "left", display: "block"
* // }
* @codeend
* <h2>Use</h2>
* <p>An element's <b>computed</b> style is the current calculated style of the property.
* This is different than the values on <code>element.style</code> as
* <code>element.style</code> doesn't reflect styles provided by css or the browser's default
* css properties.</p>
* <p>Getting computed values individually is expensive! This plugin lets you get all
* the style properties you need all at once.</p>
* <h2>Demo</h2>
* <p>The following demo illustrates the performance improvement curStyle provides by providing
* a faster 'height' jQuery function called 'fastHeight'.</p>
* @demo jquery/dom/cur_styles/cur_styles.html
* @param {String} style pass style names as arguments
* @return {Object} an object of style:value pairs
*/
.curStyles = function() {
return $.curStyles(this[0], $.makeArray(arguments));
};
});