social share

function SocialShare(el) {
    this.POPUP_WIDTH = 550;
    this.POPUP_HEIGHT = 420;

    this.$element = $(el);
    this.$element.on('click', this.onClick.bind(this));
}


SocialShare.prototype = {
    constructor: SocialShare, 
    onClick: function(e) {
        var anchor = $(event.currentTarget);
        var href = anchor.attr('href');

        var offsetX = Math.floor(((screen.availWidth || 1024) - this.POPUP_WIDTH) / 2);
        var offsetY = Math.floor(((screen.availHeight || 768) - this.POPUP_HEIGHT) / 2);

        var popup = window.open(
            href,
            "Social share",
            "width=" + 
            this.POPUP_WIDTH + 
            ",height=" + 
            this.POPUP_HEIGHT + 
            ",left=" +
            offsetX +
            ",top=" +
            offsetY +
            ",location=0,toolbar=0,menubar=0,status=0,scrollbars=1,resizable=1"
        );

        event.preventDefault();
        return popup || false;
    }
}