jellyfin-web/dashboard-ui/bower_components/neon-animation/demo/load/animated-grid.html

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<link rel="import" href="../../../polymer/polymer.html">
<link rel="import" href="../../../paper-styles/paper-styles.html">
<link rel="import" href="../../neon-shared-element-animatable-behavior.html">

<dom-module id="animated-grid">

  <link rel="import" type="css" href="../shared.css">

  <style>

    :host {
      display: block;
      background: #000;
    }

    .tile {
      display: inline-block;
      float: left;
      vertical-align: top;
      width: calc(100% / 6);
      height: calc(100% / 3);

      @apply(--paper-font-title);
      @apply(--layout-vertical);
      @apply(--layout-center-center);
    }

    .tile:nth-of-type(1) {
      width: calc(100% / 3);
      height: calc(100% / 3 * 2);
    }

    .tile:nth-of-type(4) {
      width: calc(100% / 3);
    }

    .tile:nth-of-type(5) {
      width: calc(100% / 3);
      height: calc(100% / 3 * 2);
    }

    .tile:nth-of-type(8) {
      width: calc(100% / 3);
      height: calc(100% / 3);
    }

    .tile:nth-of-type(9) {
      position: absolute;
      top: calc(100% / 3 * 2);
      left: 0;
      width: calc(100% / 6);
      height: calc(100% / 3);
    }

    .tile:nth-of-type(10) {
      position: absolute;
      top: calc(100% / 3 * 2);
      left: calc(100% / 6);;
      width: calc(100% / 6);
      height: calc(100% / 3);
    }

  </style>

  <template>

    <template is="dom-repeat" items="[[config]]">
      <div class$="[[_computeTileClass(item.color)]]">
        <span>[[item.value]]</span>
      </div>
    </template>

  </template>

</dom-module>

<script>

  Polymer({

    is: 'animated-grid',

    behaviors: [
      Polymer.NeonSharedElementAnimatableBehavior
    ],

    properties: {

      config: {
        type: Array,
        value: function() {
          return [
            {value: 1, color: 'blue'},
            {value: 2, color: 'red'},
            {value: 3, color: 'blue'},
            {value: 4, color: 'green'},
            {value: 5, color: 'yellow'},
            {value: 6, color: 'blue'},
            {value: 7, color: 'red'},
            {value: 8, color: 'green'},
            {value: 9, color: 'yellow'},
            {value: 10, color: 'red'}
          ]
        }
      },

      animationConfig: {
        type: Object,
        value: function() {
          return {
            'entry': [{
              name: 'cascaded-animation',
              animation: 'transform-animation',
              transformFrom: 'translateY(100%)',
              transformTo: 'none',
              timing: {
                delay: 50
              }
            }]
          }
        }
      }

    },

    attached: function() {
      this.async(function() {
        var nodeList = Polymer.dom(this.root).querySelectorAll('.tile');
        this.animationConfig['entry'][0].nodes = Array.prototype.slice.call(nodeList);
      });
    },

    _computeTileClass: function(color) {
      return 'tile ' + color + '-300';
    }

  });

</script>