/* Add to Homescreen v3.2.2 ~ (c) 2015 Matteo Spinelli ~ @license: http://cubiq.org/license */
(function (window, document) {
/*
_ _ _____ _____
___ _| |_| |_ _|___| | |___ _____ ___ ___ ___ ___ ___ ___ ___
| .'| . | . | | | | . | | . | | -_|_ -| _| _| -_| -_| |
|__,|___|___| |_| |___|__|__|___|_|_|_|___|___|___|_| |___|___|_|_|
by Matteo Spinelli ~ http://cubiq.org
*/
// Check for addEventListener browser support (prevent errors in IE<9)
var _eventListener = 'addEventListener' in window;
// Check if document is loaded, needed by autostart
var _DOMReady = false;
if ( document.readyState === 'complete' ) {
_DOMReady = true;
} else if ( _eventListener ) {
window.addEventListener('load', loaded, false);
}
function loaded () {
window.removeEventListener('load', loaded, false);
_DOMReady = true;
}
// regex used to detect if app has been added to the homescreen
var _reSmartURL = /\/ath(\/)?$/;
var _reQueryString = /([\?&]ath=[^&]*$|&ath=[^&]*(&))/;
// singleton
var _instance;
function ath (options) {
_instance = _instance || new ath.Class(options);
return _instance;
}
// message in all supported languages
ath.intl = {
de_de: {
ios: 'Um diese Web-App zum Home-Bildschirm hinzuzufügen, tippen Sie auf %icon und dann Zum Home-Bildschirm.',
android: 'Um diese Web-App zum Home-Bildschirm hinzuzufügen, öffnen Sie das Menü und tippen dann auf Zum Startbildschirm hinzufügen. Wenn Ihr Gerät eine Menütaste hat, lässt sich das Browsermenü über diese öffnen. Ansonsten tippen Sie auf icon.',
},
da_dk: {
ios: 'For at tilføje denne web app til hjemmeskærmen: Tryk %icon og derefter Føj til hjemmeskærm.',
android: 'For at tilføje denne web app til hjemmeskærmen, åbn browser egenskaber menuen og tryk på Føj til hjemmeskærm. Denne menu kan tilgås ved at trykke på menu knappen, hvis din enhed har en, eller ved at trykke på det øverste højre menu ikon icon.',
},
en_us: {
ios: 'To add this web app to the home screen: tap %icon and then Add to Home Screen.',
android: 'To add this web app to the home screen open the browser option menu and tap on Add to homescreen. The menu can be accessed by pressing the menu hardware button if your device has one, or by tapping the top right menu icon icon.',
},
es_es: {
ios: 'Para añadir esta aplicación web a la pantalla de inicio: pulsa %icon y selecciona Añadir a pantalla de inicio.',
android: 'Para añadir esta aplicación web a la pantalla de inicio, abre las opciones y pulsa Añadir a pantalla inicio. El menú se puede acceder pulsando el botón táctil en caso de tenerlo, o bien el icono de la parte superior derecha de la pantalla icon.',
},
fi_fi: {
ios: 'Liitä tämä sovellus kotivalikkoon: klikkaa %icon ja tämän jälkeen Lisää kotivalikkoon.',
android: 'Lisätäksesi tämän sovelluksen aloitusnäytölle, avaa selaimen valikko ja klikkaa tähti -ikonia tai Lisää aloitusnäytölle tekstiä. Valikkoon pääsee myös painamalla menuvalikkoa, jos laitteessasi on sellainen tai koskettamalla oikealla yläkulmassa menu ikonia icon.',
},
fr_fr: {
ios: 'Pour ajouter cette application web sur l\'écran d\'accueil : Appuyez %icon et sélectionnez Ajouter sur l\'écran d\'accueil.',
android: 'Pour ajouter cette application web sur l\'écran d\'accueil : Appuyez sur le bouton "menu", puis sur Ajouter sur l\'écran d\'accueil. Le menu peut-être accessible en appyant sur le bouton "menu" du téléphone s\'il en possède un . Sinon, il se trouve probablement dans la coin supérieur droit du navigateur %icon.',
},
he_il: {
ios: 'להוספת האפליקציה למסך הבית: ללחוץ על %icon ואז הוסף למסך הבית.',
android: 'To add this web app to the home screen open the browser option menu and tap on Add to homescreen. The menu can be accessed by pressing the menu hardware button if your device has one, or by tapping the top right menu icon icon.',
},
it_it: {
ios: 'Per aggiungere questa web app alla schermata iniziale: premi %icon e poi Aggiungi a Home.',
android: 'Per aggiungere questa web app alla schermata iniziale, apri il menu opzioni del browser e premi su Aggiungi alla homescreen. Puoi accedere al menu premendo il pulsante hardware delle opzioni se la tua device ne ha uno, oppure premendo l\'icona icon in alto a destra.',
},
ja_jp: {
ios: 'このウェプアプリをホーム画面に追加するために%iconを押してホーム画面に追加。',
android: 'To add this web app to the home screen open the browser option menu and tap on Add to homescreen. The menu can be accessed by pressing the menu hardware button if your device has one, or by tapping the top right menu icon icon.',
},
ko_kr: {
ios: '홈 화면에 바로가기 생성: %icon 을 클릭한 후 홈 화면에 추가.',
android: '브라우저 옵션 메뉴의 홈 화면에 추가를 클릭하여 홈화면에 바로가기를 생성할 수 있습니다. 옵션 메뉴는 장치의 메뉴 버튼을 누르거나 오른쪽 상단의 메뉴 아이콘 icon을 클릭하여 접근할 수 있습니다.'
},
nb_no: {
ios: 'For å installere denne appen på hjem-skjermen: trykk på %icon og deretter Legg til på Hjem-skjerm.',
android: 'For å legge til denne webappen på startsiden åpner en nettlesermenyen og velger Legg til på startsiden. Menyen åpnes ved å trykke på den fysiske menyknappen hvis enheten har det, eller ved å trykke på menyikonet øverst til høyre icon.',
},
pt_br: {
ios: 'Para adicionar este app à tela de início: clique %icon e então Tela de início.',
android: 'To add this web app to the home screen open the browser option menu and tap on Add to homescreen. The menu can be accessed by pressing the menu hardware button if your device has one, or by tapping the top right menu icon icon.',
},
pt_pt: {
ios: 'Para adicionar esta app ao ecrã principal: clique %icon e depois Ecrã principal.',
android: 'To add this web app to the home screen open the browser option menu and tap on Add to homescreen. The menu can be accessed by pressing the menu hardware button if your device has one, or by tapping the top right menu icon icon.',
},
nl_nl: {
ios: 'Om deze webapp op je telefoon te installeren, klik op %icon en dan Zet in beginscherm.',
android: 'To add this web app to the home screen open the browser option menu and tap on Add to homescreen. The menu can be accessed by pressing the menu hardware button if your device has one, or by tapping the top right menu icon icon.',
},
ru_ru: {
ios: 'Чтобы добавить этот сайт на свой домашний экран, нажмите на иконку %icon и затем На экран "Домой".',
android: 'Чтобы добавить сайт на свой домашний экран, откройте меню браузера и нажмите на Добавить на главный экран. Меню можно вызвать, нажав на кнопку меню вашего телефона, если она есть. Или найдите иконку сверху справа иконка.',
},
sv_se: {
ios: 'För att lägga till denna webbapplikation på hemskärmen: tryck på %icon och därefter Lägg till på hemskärmen.',
android: 'För att lägga till den här webbappen på hemskärmen öppnar du webbläsarens alternativ-meny och väljer Lägg till på startskärmen. Man hittar menyn genom att trycka på hårdvaruknappen om din enhet har en sådan, eller genom att trycka på menyikonen högst upp till höger icon.',
},
zh_cn: {
ios: '如要把应用程序加至主屏幕,请点击%icon, 然后添加到主屏幕',
android: 'To add this web app to the home screen open the browser option menu and tap on Add to homescreen. The menu can be accessed by pressing the menu hardware button if your device has one, or by tapping the top right menu icon icon.',
},
zh_tw: {
ios: '如要把應用程式加至主屏幕, 請點擊%icon, 然後加至主屏幕.',
android: 'To add this web app to the home screen open the browser option menu and tap on Add to homescreen. The menu can be accessed by pressing the menu hardware button if your device has one, or by tapping the top right menu icon icon.',
},
};
// Add 2 characters language support (Android mostly)
for ( var lang in ath.intl ) {
ath.intl[lang.substr(0, 2)] = ath.intl[lang];
}
// default options
ath.defaults = {
appID: 'org.cubiq.addtohome', // local storage name (no need to change)
fontSize: 15, // base font size, used to properly resize the popup based on viewport scale factor
debug: false, // override browser checks
logging: false, // log reasons for showing or not showing to js console; defaults to true when debug is true
modal: false, // prevent further actions until the message is closed
mandatory: false, // you can't proceed if you don't add the app to the homescreen
autostart: true, // show the message automatically
skipFirstVisit: false, // show only to returning visitors (ie: skip the first time you visit)
startDelay: 1, // display the message after that many seconds from page load
lifespan: 15, // life of the message in seconds
displayPace: 1440, // minutes before the message is shown again (0: display every time, default 24 hours)
maxDisplayCount: 0, // absolute maximum number of times the message will be shown to the user (0: no limit)
icon: true, // add touch icon to the message
message: '', // the message can be customized
validLocation: [], // list of pages where the message will be shown (array of regexes)
onInit: null, // executed on instance creation
onShow: null, // executed when the message is shown
onRemove: null, // executed when the message is removed
onAdd: null, // when the application is launched the first time from the homescreen (guesstimate)
onPrivate: null, // executed if user is in private mode
privateModeOverride: false, // show the message even in private mode (very rude)
detectHomescreen: false // try to detect if the site has been added to the homescreen (false | true | 'hash' | 'queryString' | 'smartURL')
};
// browser info and capability
var _ua = window.navigator.userAgent;
var _nav = window.navigator;
_extend(ath, {
hasToken: document.location.hash == '#ath' || _reSmartURL.test(document.location.href) || _reQueryString.test(document.location.search),
isRetina: window.devicePixelRatio && window.devicePixelRatio > 1,
isIDevice: (/iphone|ipod|ipad/i).test(_ua),
isMobileChrome: _ua.indexOf('Android') > -1 && (/Chrome\/[.0-9]*/).test(_ua) && _ua.indexOf("Version") == -1,
isMobileIE: _ua.indexOf('Windows Phone') > -1,
language: _nav.language && _nav.language.toLowerCase().replace('-', '_') || ''
});
// falls back to en_us if language is unsupported
ath.language = ath.language && ath.language in ath.intl ? ath.language : 'en_us';
ath.isMobileSafari = ath.isIDevice && _ua.indexOf('Safari') > -1 && _ua.indexOf('CriOS') < 0;
ath.OS = ath.isIDevice ? 'ios' : ath.isMobileChrome ? 'android' : ath.isMobileIE ? 'windows' : 'unsupported';
ath.OSVersion = _ua.match(/(OS|Android) (\d+[_\.]\d+)/);
ath.OSVersion = ath.OSVersion && ath.OSVersion[2] ? +ath.OSVersion[2].replace('_', '.') : 0;
ath.isStandalone = 'standalone' in window.navigator && window.navigator.standalone;
ath.isTablet = (ath.isMobileSafari && _ua.indexOf('iPad') > -1) || (ath.isMobileChrome && _ua.indexOf('Mobile') < 0);
ath.isCompatible = (ath.isMobileSafari && ath.OSVersion >= 6) || ath.isMobileChrome; // TODO: add winphone
var _defaultSession = {
lastDisplayTime: 0, // last time we displayed the message
returningVisitor: false, // is this the first time you visit
displayCount: 0, // number of times the message has been shown
optedout: false, // has the user opted out
added: false // has been actually added to the homescreen
};
ath.removeSession = function (appID) {
try {
if (!localStorage) {
throw new Error('localStorage is not defined');
}
localStorage.removeItem(appID || ath.defaults.appID);
} catch (e) {
// we are most likely in private mode
}
};
ath.doLog = function (logStr) {
if ( this.options.logging ) {
console.log(logStr);
}
};
ath.Class = function (options) {
// class methods
this.doLog = ath.doLog;
// merge default options with user config
this.options = _extend({}, ath.defaults);
_extend(this.options, options);
// override defaults that are dependent on each other
if ( options && options.debug && (typeof options.logging === "undefined") ) {
this.options.logging = true;
}
// IE<9 so exit (I hate you, really)
if ( !_eventListener ) {
return;
}
// normalize some options
this.options.mandatory = this.options.mandatory && ( 'standalone' in window.navigator || this.options.debug );
this.options.modal = this.options.modal || this.options.mandatory;
if ( this.options.mandatory ) {
this.options.startDelay = -0.5; // make the popup hasty
}
this.options.detectHomescreen = this.options.detectHomescreen === true ? 'hash' : this.options.detectHomescreen;
// setup the debug environment
if ( this.options.debug ) {
ath.isCompatible = true;
ath.OS = typeof this.options.debug == 'string' ? this.options.debug : ath.OS == 'unsupported' ? 'android' : ath.OS;
ath.OSVersion = ath.OS == 'ios' ? '8' : '4';
}
// the element the message will be appended to
this.container = document.documentElement;
// load session
this.session = this.getItem(this.options.appID);
this.session = this.session ? JSON.parse(this.session) : undefined;
// user most likely came from a direct link containing our token, we don't need it and we remove it
if ( ath.hasToken && ( !ath.isCompatible || !this.session ) ) {
ath.hasToken = false;
_removeToken();
}
// the device is not supported
if ( !ath.isCompatible ) {
this.doLog("Add to homescreen: not displaying callout because device not supported");
return;
}
this.session = this.session || _defaultSession;
// check if we can use the local storage
try {
if (!localStorage) {
throw new Error('localStorage is not defined');
}
localStorage.setItem(this.options.appID, JSON.stringify(this.session));
ath.hasLocalStorage = true;
} catch (e) {
// we are most likely in private mode
ath.hasLocalStorage = false;
if ( this.options.onPrivate ) {
this.options.onPrivate.call(this);
}
}
// check if this is a valid location
var isValidLocation = !this.options.validLocation.length;
for ( var i = this.options.validLocation.length; i--; ) {
if ( this.options.validLocation[i].test(document.location.href) ) {
isValidLocation = true;
break;
}
}
// check compatibility with old versions of add to homescreen. Opt-out if an old session is found
if ( this.getItem('addToHome') ) {
this.optOut();
}
// critical errors:
if ( this.session.optedout ) {
this.doLog("Add to homescreen: not displaying callout because user opted out");
return;
}
if ( this.session.added ) {
this.doLog("Add to homescreen: not displaying callout because already added to the homescreen");
return;
}
if ( !isValidLocation ) {
this.doLog("Add to homescreen: not displaying callout because not a valid location");
return;
}
// check if the app is in stand alone mode
if ( ath.isStandalone ) {
// execute the onAdd event if we haven't already
if ( !this.session.added ) {
this.session.added = true;
this.updateSession();
if ( this.options.onAdd && ath.hasLocalStorage ) { // double check on localstorage to avoid multiple calls to the custom event
this.options.onAdd.call(this);
}
}
this.doLog("Add to homescreen: not displaying callout because in standalone mode");
return;
}
// (try to) check if the page has been added to the homescreen
if ( this.options.detectHomescreen ) {
// the URL has the token, we are likely coming from the homescreen
if ( ath.hasToken ) {
_removeToken(); // we don't actually need the token anymore, we remove it to prevent redistribution
// this is called the first time the user opens the app from the homescreen
if ( !this.session.added ) {
this.session.added = true;
this.updateSession();
if ( this.options.onAdd && ath.hasLocalStorage ) { // double check on localstorage to avoid multiple calls to the custom event
this.options.onAdd.call(this);
}
}
this.doLog("Add to homescreen: not displaying callout because URL has token, so we are likely coming from homescreen");
return;
}
// URL doesn't have the token, so add it
if ( this.options.detectHomescreen == 'hash' ) {
history.replaceState('', window.document.title, document.location.href + '#ath');
} else if ( this.options.detectHomescreen == 'smartURL' ) {
history.replaceState('', window.document.title, document.location.href.replace(/(\/)?$/, '/ath$1'));
} else {
history.replaceState('', window.document.title, document.location.href + (document.location.search ? '&' : '?' ) + 'ath=');
}
}
// check if this is a returning visitor
if ( !this.session.returningVisitor ) {
this.session.returningVisitor = true;
this.updateSession();
// we do not show the message if this is your first visit
if ( this.options.skipFirstVisit ) {
this.doLog("Add to homescreen: not displaying callout because skipping first visit");
return;
}
}
// we do no show the message in private mode
if ( !this.options.privateModeOverride && !ath.hasLocalStorage ) {
this.doLog("Add to homescreen: not displaying callout because browser is in private mode");
return;
}
// all checks passed, ready to display
this.ready = true;
if ( this.options.onInit ) {
this.options.onInit.call(this);
}
if ( this.options.autostart ) {
this.doLog("Add to homescreen: autostart displaying callout");
this.show();
}
};
ath.Class.prototype = {
// event type to method conversion
events: {
load: '_delayedShow',
error: '_delayedShow',
orientationchange: 'resize',
resize: 'resize',
scroll: 'resize',
click: 'remove',
touchmove: '_preventDefault',
transitionend: '_removeElements',
webkitTransitionEnd: '_removeElements',
MSTransitionEnd: '_removeElements'
},
handleEvent: function (e) {
var type = this.events[e.type];
if ( type ) {
this[type](e);
}
},
show: function (force) {
// in autostart mode wait for the document to be ready
if ( this.options.autostart && !_DOMReady ) {
setTimeout(this.show.bind(this), 50);
// we are not displaying callout because DOM not ready, but don't log that because
// it would log too frequently
return;
}
// message already on screen
if ( this.shown ) {
this.doLog("Add to homescreen: not displaying callout because already shown on screen");
return;
}
var now = Date.now();
var lastDisplayTime = this.session.lastDisplayTime;
if ( force !== true ) {
// this is needed if autostart is disabled and you programmatically call the show() method
if ( !this.ready ) {
this.doLog("Add to homescreen: not displaying callout because not ready");
return;
}
// we obey the display pace (prevent the message to popup too often)
if ( now - lastDisplayTime < this.options.displayPace * 60000 ) {
this.doLog("Add to homescreen: not displaying callout because displayed recently");
return;
}
// obey the maximum number of display count
if ( this.options.maxDisplayCount && this.session.displayCount >= this.options.maxDisplayCount ) {
this.doLog("Add to homescreen: not displaying callout because displayed too many times already");
return;
}
}
this.shown = true;
// increment the display count
this.session.lastDisplayTime = now;
this.session.displayCount++;
this.updateSession();
// try to get the highest resolution application icon
if ( !this.applicationIcon ) {
if ( ath.OS == 'ios' ) {
this.applicationIcon = document.querySelector('head link[rel^=apple-touch-icon][sizes="152x152"],head link[rel^=apple-touch-icon][sizes="144x144"],head link[rel^=apple-touch-icon][sizes="120x120"],head link[rel^=apple-touch-icon][sizes="114x114"],head link[rel^=apple-touch-icon]');
} else {
this.applicationIcon = document.querySelector('head link[rel^="shortcut icon"][sizes="196x196"],head link[rel^=apple-touch-icon]');
}
}
var message = '';
if ( typeof this.options.message == 'object' && ath.language in this.options.message ) { // use custom language message
message = this.options.message[ath.language][ath.OS];
} else if ( typeof this.options.message == 'object' && ath.OS in this.options.message ) { // use custom os message
message = this.options.message[ath.OS];
} else if ( this.options.message in ath.intl ) { // you can force the locale
message = ath.intl[this.options.message][ath.OS];
} else if ( this.options.message !== '' ) { // use a custom message
message = this.options.message;
} else if ( ath.OS in ath.intl[ath.language] ) { // otherwise we use our message
message = ath.intl[ath.language][ath.OS];
}
// add the action icon
message = '' + message.replace('%icon', 'icon') + '
';
// create the message container
this.viewport = document.createElement('div');
this.viewport.className = 'ath-viewport';
if ( this.options.modal ) {
this.viewport.className += ' ath-modal';
}
if ( this.options.mandatory ) {
this.viewport.className += ' ath-mandatory';
}
this.viewport.style.position = 'absolute';
// create the actual message element
this.element = document.createElement('div');
this.element.className = 'ath-container ath-' + ath.OS + ' ath-' + ath.OS + (ath.OSVersion + '').substr(0,1) + ' ath-' + (ath.isTablet ? 'tablet' : 'phone');
this.element.style.cssText = '-webkit-transition-property:-webkit-transform,opacity;-webkit-transition-duration:0s;-webkit-transition-timing-function:ease-out;transition-property:transform,opacity;transition-duration:0s;transition-timing-function:ease-out;';
this.element.style.webkitTransform = 'translate3d(0,-' + window.innerHeight + 'px,0)';
this.element.style.transform = 'translate3d(0,-' + window.innerHeight + 'px,0)';
// add the application icon
if ( this.options.icon && this.applicationIcon ) {
this.element.className += ' ath-icon';
this.img = document.createElement('img');
this.img.className = 'ath-application-icon';
this.img.addEventListener('load', this, false);
this.img.addEventListener('error', this, false);
this.img.src = this.applicationIcon.href;
this.element.appendChild(this.img);
}
this.element.innerHTML += message;
// we are not ready to show, place the message out of sight
this.viewport.style.left = '-99999em';
// attach all elements to the DOM
this.viewport.appendChild(this.element);
this.container.appendChild(this.viewport);
// if we don't have to wait for an image to load, show the message right away
if ( this.img ) {
this.doLog("Add to homescreen: not displaying callout because waiting for img to load");
} else {
this._delayedShow();
}
},
_delayedShow: function (e) {
setTimeout(this._show.bind(this), this.options.startDelay * 1000 + 500);
},
_show: function () {
var that = this;
// update the viewport size and orientation
this.updateViewport();
// reposition/resize the message on orientation change
window.addEventListener('resize', this, false);
window.addEventListener('scroll', this, false);
window.addEventListener('orientationchange', this, false);
if ( this.options.modal ) {
// lock any other interaction
document.addEventListener('touchmove', this, true);
}
// Enable closing after 1 second
if ( !this.options.mandatory ) {
setTimeout(function () {
that.element.addEventListener('click', that, true);
}, 1000);
}
// kick the animation
setTimeout(function () {
that.element.style.webkitTransitionDuration = '1.2s';
that.element.style.transitionDuration = '1.2s';
that.element.style.webkitTransform = 'translate3d(0,0,0)';
that.element.style.transform = 'translate3d(0,0,0)';
}, 0);
// set the destroy timer
if ( this.options.lifespan ) {
this.removeTimer = setTimeout(this.remove.bind(this), this.options.lifespan * 1000);
}
// fire the custom onShow event
if ( this.options.onShow ) {
this.options.onShow.call(this);
}
},
remove: function () {
clearTimeout(this.removeTimer);
// clear up the event listeners
if ( this.img ) {
this.img.removeEventListener('load', this, false);
this.img.removeEventListener('error', this, false);
}
window.removeEventListener('resize', this, false);
window.removeEventListener('scroll', this, false);
window.removeEventListener('orientationchange', this, false);
document.removeEventListener('touchmove', this, true);
this.element.removeEventListener('click', this, true);
// remove the message element on transition end
this.element.addEventListener('transitionend', this, false);
this.element.addEventListener('webkitTransitionEnd', this, false);
this.element.addEventListener('MSTransitionEnd', this, false);
// start the fade out animation
this.element.style.webkitTransitionDuration = '0.3s';
this.element.style.opacity = '0';
},
_removeElements: function () {
this.element.removeEventListener('transitionend', this, false);
this.element.removeEventListener('webkitTransitionEnd', this, false);
this.element.removeEventListener('MSTransitionEnd', this, false);
// remove the message from the DOM
this.container.removeChild(this.viewport);
this.shown = false;
// fire the custom onRemove event
if ( this.options.onRemove ) {
this.options.onRemove.call(this);
}
},
updateViewport: function () {
if ( !this.shown ) {
return;
}
this.viewport.style.width = window.innerWidth + 'px';
this.viewport.style.height = window.innerHeight + 'px';
this.viewport.style.left = window.scrollX + 'px';
this.viewport.style.top = window.scrollY + 'px';
var clientWidth = document.documentElement.clientWidth;
this.orientation = clientWidth > document.documentElement.clientHeight ? 'landscape' : 'portrait';
var screenWidth = ath.OS == 'ios' ? this.orientation == 'portrait' ? screen.width : screen.height : screen.width;
this.scale = screen.width > clientWidth ? 1 : screenWidth / window.innerWidth;
this.element.style.fontSize = this.options.fontSize / this.scale + 'px';
},
resize: function () {
clearTimeout(this.resizeTimer);
this.resizeTimer = setTimeout(this.updateViewport.bind(this), 100);
},
updateSession: function () {
if ( ath.hasLocalStorage === false ) {
return;
}
if (localStorage) {
localStorage.setItem(this.options.appID, JSON.stringify(this.session));
}
},
clearSession: function () {
this.session = _defaultSession;
this.updateSession();
},
getItem: function(item) {
try {
if (!localStorage) {
throw new Error('localStorage is not defined');
}
return localStorage.getItem(item);
} catch(e) {
// Preventing exception for some browsers when fetching localStorage key
ath.hasLocalStorage = false;
}
},
optOut: function () {
this.session.optedout = true;
this.updateSession();
},
optIn: function () {
this.session.optedout = false;
this.updateSession();
},
clearDisplayCount: function () {
this.session.displayCount = 0;
this.updateSession();
},
_preventDefault: function (e) {
e.preventDefault();
e.stopPropagation();
}
};
// utility
function _extend (target, obj) {
for ( var i in obj ) {
target[i] = obj[i];
}
return target;
}
function _removeToken () {
if ( document.location.hash == '#ath' ) {
history.replaceState('', window.document.title, document.location.href.split('#')[0]);
}
if ( _reSmartURL.test(document.location.href) ) {
history.replaceState('', window.document.title, document.location.href.replace(_reSmartURL, '$1'));
}
if ( _reQueryString.test(document.location.search) ) {
history.replaceState('', window.document.title, document.location.href.replace(_reQueryString, '$2'));
}
}
// expose to the world
window.addToHomescreen = ath;
})(window, document);