<!– @license Copyright © 2015 The Polymer Project Authors. All rights reserved. This code may only be used under the BSD style license found at polymer.github.io/LICENSE.txt The complete set of authors may be found at polymer.github.io/AUTHORS.txt The complete set of contributors may be found at polymer.github.io/CONTRIBUTORS.txt Code distributed by Google as part of the polymer project is also subject to an additional IP rights grant found at polymer.github.io/PATENTS.txt –> <link rel=“import” href=“../../../polymer/polymer.html”> <link rel=“import” href=“../../neon-shared-element-animatable-behavior.html”>

<dom-module id=“squares-page”>

<template>
  <style>
    .header {
      height: 40%;
      background: var(--color-one);
    }

    .body {
      text-align: center;
      padding: 8px;
    }

    .square {
      display: inline-block;
      width: 150px;
      height: 150px;
      margin: 8px;
      background: var(--color-two);
    }
  </style>

  <div id="header" class="header"></div>

  <div class="body">
    <div class="square"></div>
    <div class="square"></div>
    <div class="square"></div>
    <div class="square"></div>
  </div>

</template>

</dom-module>

<script>

Polymer({

  is: 'squares-page',

  behaviors: [
    Polymer.NeonSharedElementAnimatableBehavior
  ],

  properties: {

    sharedElements: {
      value: function() {
        return {
          'hero': this.$.header
        }
      }
    },

    animationConfig: {
      value: function() {
        var squares = Polymer.dom(this.root).querySelectorAll('.square');
        var squaresArray = Array.prototype.slice.call(squares);
        return {
          'entry': [{
            name: 'hero-animation',
            id: 'hero',
            toPage: this
          }, {
            name: 'cascaded-animation',
            animation: 'transform-animation',
            transformFrom: 'translateY(100%)',
            nodes: squaresArray
          }],

          'exit': [{
            name: 'slide-up-animation',
            node: this.$.header
          }, {
            name: 'cascaded-animation',
            animation: 'transform-animation',
            transformTo: 'translateY(60vh)',
            nodes: squaresArray
          }]
        };
      }
    }
  }

});

</script>