cobuild-angular-stack/assets/raws/local.storage.polyfill.js

Base stack angular sass jade gulp

(function () {

    console.log("Loading localStorage pollyfill");

    function isSupported() {
        var item = 'localStoragePollyfill';
        try {
            localStorage.setItem(item, item);
            localStorage.removeItem(item);
            return true;
        } catch (e) {
            return false;
        }
    }

    function createCookie(name, value, days) {
        if (days) {
            var date = new Date();
            date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
            var expires = "; expires=" + date.toGMTString();
        }
        else var expires = "";
        document.cookie = name + "=" + value + expires + "; path=/";
        console.log(document.cookie);
    }

    function readCookie(name) {
        var nameEQ = name + "=";
        var ca = document.cookie.split(';');
        for (var i = 0; i < ca.length; i++) {
            var c = ca[i];
            while (c.charAt(0) == ' ') c = c.substring(1, c.length);
            if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
        }
        return null;
    }

    function eraseCookie(name) {
        createCookie(name, "", -1);
    }

    function deleteAllCookies() {
        var cookies = document.cookie.split(";");

        for (var i = 0; i < cookies.length; i++) {
            var cookie = cookies[i];
            var eqPos = cookie.indexOf("=");
            var name = eqPos > -1 ? cookie.substr(0, eqPos) : cookie;
            eraseCookie(name);
        }
    }

    if (!isSupported()) {
        try {
            Storage.prototype._data = {};

            Storage.prototype.setItem = function (id, val) {
                //return this._data[id] = String(val);
                return createCookie(id, val);
            };

            Storage.prototype.getItem = function (id) {
                //return this._data.hasOwnProperty(id) ? this._data[id] : null;
                return readCookie(id);
            },

                Storage.prototype.removeItem = function (id) {
                    //return delete this._data[id];
                    eraseCookie(id);
                },

                Storage.prototype.clear = function () {
                    return this._data = {};
                }
        } catch (e) {
            console.error('localStorage pollyfill error: ', e);
        }
    }
}());