bower_components/iron-list/demo/index.html

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<!doctype html>
<html>
<head>

  <title>iron-list and paper-scroll-header-panel demo</title>

  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1, user-scalable=yes">
  <meta name="mobile-web-app-capable" content="yes">
  <meta name="apple-mobile-web-app-capable" content="yes">

  <script src="../../webcomponentsjs/webcomponents-lite.js"></script>

  <link rel="import" href="../../polymer/polymer.html">
  <link rel="import" href="../../iron-flex-layout/iron-flex-layout.html">
  <link rel="import" href="../../paper-toolbar/paper-toolbar.html">
  <link rel="import" href="../../paper-scroll-header-panel/paper-scroll-header-panel.html">
  <link rel="import" href="../../paper-icon-button/paper-icon-button.html">
  <link rel="import" href="../../iron-ajax/iron-ajax.html">
  <link rel="import" href="../../iron-icons/iron-icons.html">
  <link rel="import" href="../iron-list.html">

  <style is="custom-style">

    paper-scroll-header-panel {
      @apply(--layout-fit);
      @apply(--layout-vertical);
      @apply(--paper-font-common-base);
    }

    paper-toolbar.tall .title {
      font-size: 40px;
      margin-left: 60px;

      -webkit-transform-origin: left center;
      transform-origin: left center;
      overflow: visible;
    }

    paper-toolbar paper-icon-button {
      --paper-icon-button-ink-color: white;
    }

    iron-list {
      background-color: var(--paper-grey-200, #eee);
      padding-bottom: 16px;
    }

    .item {
      @apply(--layout-horizontal);

      margin: 16px 16px 0 16px;
      padding: 20px;
      border-radius: 8px;
      background-color: white;
      border: 1px solid #ddd;
    }

    .item:focus {
      outline: 0;
      border-color: #666;
    }

    .avatar {
      height: 40px;
      width: 40px;
      border-radius: 20px;
      box-sizing: border-box;
      background-color: #DDD;
    }

    .pad {
      padding: 0 16px;
      @apply(--layout-flex);
      @apply(--layout-vertical);
    }

    .primary {
      font-size: 16px;
      font-weight: bold;
    }

    .secondary {
      font-size: 14px;
    }

    .dim {
      color: gray;
    }

  </style>

</head>
<body unresolved>

  <template is="dom-bind">
    <iron-ajax url="data/contacts.json" last-response="{{data}}" auto></iron-ajax>

    <paper-scroll-header-panel class="fit" condenses keep-condensed-header>
      <paper-toolbar class="tall">
        <paper-icon-button icon="arrow-back" alt="Back"></paper-icon-button>
        <div class="flex"></div>
        <paper-icon-button icon="search" alt="Search"></paper-icon-button>
        <paper-icon-button icon="more-vert" alt="More options"></paper-icon-button>
        <div class="bottom title">iron-list</div>
      </paper-toolbar>
      <iron-list items="[[data]]" as="item">
        <template>
          <div>
            <div class="item">
              <img class="avatar" src="[[item.image]]">
              <div class="pad">
                <div class="primary">[[item.name]]</div>
                <div class="secondary">[[item.shortText]]</div>
                <div class="secondary dim">[[item.longText]]</div>
              </div>
              <iron-icon icon$="[[iconForItem(item)]]"></iron-icon>
            </div>
          </div>
        </template>
      </iron-list>
    </paper-scroll-header-panel>
  </template>

  <script>

    document.querySelector('template[is=dom-bind]').iconForItem = function(item) {
      return item ? (item.integer < 50 ? 'star-border' : 'star') : '';
    };

    document.addEventListener('paper-header-transform', function(event) {
      var title = this.querySelector('.title');
      var detail = event.detail;
      var deltaHeight = detail.height - detail.condensedHeight;
      var scale = Math.max(0.6, (deltaHeight - detail.y) / (deltaHeight / 0.4)  + 0.6);

      Polymer.Base.transform('scale(' + scale + ') translateZ(0)', title);
    });

  </script>
</body>
</html>