trotzig/diffux

define([
    "../core"
], function( jQuery ) {

// A method for quickly swapping in/out CSS properties to get correct calculations.
jQuery.swap = function( elem, options, callback, args ) {
    var ret, name,
        old = {};

    // Remember the old values, and insert the new ones
    for ( name in options ) {
        old[ name ] = elem.style[ name ];
        elem.style[ name ] = options[ name ];
    }

    ret = callback.apply( elem, args || [] );

    // Revert the old values
    for ( name in options ) {
        elem.style[ name ] = old[ name ];
    }

    return ret;
};

return jQuery.swap;

});