Zepto.polyfills.js

zepto.polyfills.js

/*
 * Sick of using jQuery - but still want to utilize it's selector engine
 * and third-party plugins? Me too!
 * 
 * Make sure you add Zepto's source first from http://zeptojs.com/.
 *
 * If you only need the minified version of Zepto and are using bower you can install it by:
 * $ bower install http://zeptojs.com/zepto.min.js --save
 *
 * I will document with comments what specific methods are intended for below.
*/

//*---------------------------------------
// Global - Non Library Specific

    //jQuery catchall
    window.jQuery = Zepto;
    
    //data function
    $.data = function(elem, key, value){ return $(elem).data(key, value);}

//*---------------------------------------
// Needed by Slick.js

    //css psuedo selectors
    $.expr = {':': {}};

    //outerWidth && outerHeight
    ['width', 'height'].forEach(function(dimension) {
        var offset, Dimension = dimension.replace(/./, function(m) { return m[0].toUpperCase() });
        $.fn['outer' + Dimension] = function(margin) {
            var elem = this;
            if (elem) {
                var size = elem[dimension]();
                var sides = {'width': ['left', 'right'], 'height': ['top', 'bottom']};
            
                sides[dimension].forEach(function(side) {
                    if (margin) size += parseInt(elem.css('margin-' + side), 10);
                });
            
                return size;
            } else {
                return null;
            }
        };
    });

    //Override Zepto's broken proxy
    $.proxy = function( fn, context ) {
        if ( typeof context === "string" ) {
          var tmp = fn[ context ];
          context = fn;
          fn = tmp;
        }
        if (!$.isFunction(fn)) return undefined;
        var args = Array.prototype.slice.call( arguments, 2 ),
            proxy = function() {
                return fn.apply( context, args.concat( Array.prototype.slice.call( arguments ) ) );
            };
        proxy.guid = fn.guid = fn.guid || proxy.guid || $.guid++;
        return proxy;
    };