x-scrollable.html 1.44 KB
<!--
@license
Copyright (c) 2016 The Polymer Project Authors. All rights reserved.
This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
The complete set of contributors may be found at http://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 http://polymer.github.io/PATENTS.txt
-->

<link rel="import" href="../../polymer/polymer.html">
<link rel="import" href="../iron-scroll-target-behavior.html">

<dom-module id="x-scrollable">

  <style>

    :host {
      display: block;
      font: 14px arial;
    }

    .item {
      border-bottom: 1px solid #ccc;
      background-color: white;
      padding: 20px;
      width: 200%;
    }

  </style>

  <template>
    <template is="dom-repeat" items="[[_getItems(itemCount)]]">
      <div class="item">[[index]]</div>
    </template>
  </template>

</dom-module>

<script>
  Polymer({

    is: 'x-scrollable',

    properties: {

      itemCount: {
        type: Number,
        value: 200
      }

    },

    behaviors: [
      Polymer.IronScrollTargetBehavior
    ],

    _defaultScrollTarget: null,

    _getItems: function(itemCount) {
      var items = new Array(itemCount);
      while (itemCount > 0) {
        items[--itemCount] = true;
      }
      return items;
    }
  });
</script>