alucidwolf/bootstrap-collapse-cookie

I cannot take full credit for this

bootstrap-collapse-cookie

I cannot take full credit for this

##HTML

<div class="panel-group" role="tablist" aria-multiselectable="true">
    <div class="panel panel-default">
        <div class="panel-heading" role="tab" id="headingOne">
            <h4 class="panel-title">Title</h4>
        </div>

        <div id="collapseOne" class="panel-collapse collapse in" role="tabpanel" aria-labelledby="headingOne">
            <div class="panel-body">
                <p>body content</p>
            </div>
        </div>
    </div>
</div>

##jQuery Plugin File not mine see credit in file

/*!
 * jQuery Cookie Plugin v1.4.1
 * https://github.com/carhartl/jquery-cookie
 *
 * Copyright 2006, 2014 Klaus Hartl
 * Released under the MIT license
 */
(function (factory) {
	if (typeof define === 'function' && define.amd) {
		// AMD (Register as an anonymous module)
		define(['jquery'], factory);
	} else if (typeof exports === 'object') {
		// Node/CommonJS
		module.exports = factory(require('jquery'));
	} else {
		// Browser globals
		factory(jQuery);
	}
}(function ($) {

	var pluses = /\+/g;

	function encode(s) {
		return config.raw ? s : encodeURIComponent(s);
	}

	function decode(s) {
		return config.raw ? s : decodeURIComponent(s);
	}

	function stringifyCookieValue(value) {
		return encode(config.json ? JSON.stringify(value) : String(value));
	}

	function parseCookieValue(s) {
		if (s.indexOf('"') === 0) {
			// This is a quoted cookie as according to RFC2068, unescape...
			s = s.slice(1, -1).replace(/\\"/g, '"').replace(/\\\\/g, '\\');
		}

		try {
			// Replace server-side written pluses with spaces.
			// If we can't decode the cookie, ignore it, it's unusable.
			// If we can't parse the cookie, ignore it, it's unusable.
			s = decodeURIComponent(s.replace(pluses, ' '));
			return config.json ? JSON.parse(s) : s;
		} catch(e) {}
	}

	function read(s, converter) {
		var value = config.raw ? s : parseCookieValue(s);
		return $.isFunction(converter) ? converter(value) : value;
	}

	var config = $.cookie = function (key, value, options) {

		// Write

		if (arguments.length > 1 && !$.isFunction(value)) {
			options = $.extend({}, config.defaults, options);

			if (typeof options.expires === 'number') {
				var days = options.expires, t = options.expires = new Date();
				t.setMilliseconds(t.getMilliseconds() + days * 864e+5);
			}

			return (document.cookie = [
				encode(key), '=', stringifyCookieValue(value),
				options.expires ? '; expires=' + options.expires.toUTCString() : '', // use expires attribute, max-age is not supported by IE
				options.path    ? '; path=' + options.path : '',
				options.domain  ? '; domain=' + options.domain : '',
				options.secure  ? '; secure' : ''
			].join(''));
		}

		// Read

		var result = key ? undefined : {},
			// To prevent the for loop in the first place assign an empty array
			// in case there are no cookies at all. Also prevents odd result when
			// calling $.cookie().
			cookies = document.cookie ? document.cookie.split('; ') : [],
			i = 0,
			l = cookies.length;

		for (; i < l; i++) {
			var parts = cookies[i].split('='),
				name = decode(parts.shift()),
				cookie = parts.join('=');

			if (key === name) {
				// If second argument (value) is a function it's a converter...
				result = read(cookie, value);
				break;
			}

			// Prevent storing a cookie that we couldn't decode.
			if (!key && (cookie = read(cookie)) !== undefined) {
				result[name] = cookie;
			}
		}

		return result;
	};

	config.defaults = {};

	$.removeCookie = function (key, options) {
		// Must not alter options, thus extending a fresh object...
		$.cookie(key, '', $.extend({}, options, { expires: -1 }));
		return !$.cookie(key);
	};

}));

##Javascript

//Keeping the panel open from page to page based on the last action of the user
var activePanels = [];
$(".panel .panel-collapse").on('shown.bs.collapse', function () {
    var active = $(this).attr('id');
    activePanels.push(active);
    $.cookie('activePanelGroup', activePanels);
});

$(".panel .panel-collapse").on('hidden.bs.collapse', function () {
    var selectedPanel = $(this).attr('id');
    var index = activePanels.indexOf(selectedPanel);
    if (index > -1)
        activePanels.splice(index, 1);
    $.cookie('activePanelGroup', activePanels);
});

var aPanels = $.cookie('activePanelGroup');
if (aPanels != null) {
    //remove default collapse settings            
    $(".panel .panel-collapse").removeClass('in')
    $("a.userNameCollapse").addClass('collapsed');

    // put all active ids to array
    var arr = aPanels.split(",");
    console.log(arr);

    // loop on each active panels
    $.each(arr, function (key, value) {

        //show the account_last visible group
        $("#" + value).addClass("in")

        // store again the selected panels so it won't get reset on reload
        activePanels.push(value);
        $.cookie('activePanelGroup', activePanels);
    });
}