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                <div ng-controller="AppController as vm" ng-app="app" layout="column">
  <h3 class="md-headline">Stacked toasts</h3>
      <li>Multiple toasts will be shown after each other</li>
      <li>Toasts with the same message and triggered within short time will be shown only once</li>
    <md-button ng-click="vm.showToast()" class="md-raised md-primary">
      show toast
      <input ng-model="vm.message">
      <label>delay (in ms)</label>
      <input ng-model="vm.delay" type="number">
  <script type="text/ng-template" id="toast-template.tpl.html">
      <span flex>{{vm.message}}</span>
      <md-button class="md-highlight" ng-click="vm.close()">




                (function() {
  'use strict';

    .module('app', ['ngMaterial'])
    .controller('AppController', AppController)
    .controller('ToastController', ToastController)
    .service('Notification', Notification);

  AppController.$inject = ['Notification'];

  function AppController(Notification) {
    var vm = this;
    vm.number = 0;

    vm.showToast = showToast;

    function showToast() {
      var msg = vm.message;
      if (!msg) {
        msg = 'Toast number ' + ++vm.number;
        message: msg,
        hideDelay: vm.delay

  ToastController.$inject = ['$mdToast', 'message'];

  function ToastController($mdToast, message) {
    var vm = this;

    vm.message = message;
    vm.close = close;

    function close() {

  Notification.$inject = ['$mdToast', '$timeout'];

  function Notification($mdToast, $timeout) {
    var stack = [];
    var debounce;
    var lastMsg;
    var cooldown = 500;

    var service = {}; = show;

    return service;

    function show(options) {
      hideDelay(options, 5000);

    function hideDelay(options, delay) {
      if (options.hideDelay == undefined) {
        options.hideDelay = delay;

     * We defer the showing in case too many toast are created in too little time (seems to be an issue with ng-material).
     * @param toast
    function internalShow(toast) {
      (function() {
        if (lastMsg === toast.locals.message) {
        lastMsg = toast.locals.message;
        debounce = $timeout(function() {
          lastMsg = null;
          // we stack toasts with different msg not showing within 500 millis (cooldown)
          if (stack.length === 1) {
        }, cooldown);

    function showStacked() {
      if (!stack.length) {
      var toast = stack[0];
      $ {

    function basicToast(options) {
      return {
        templateUrl: 'toast-template.tpl.html',
        controller: 'ToastController',
        controllerAs: 'vm',
        locals: {
          message: options.message
        position: 'top right',
        hideDelay: options.hideDelay