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bower_components/neon-animation/demo/dropdown/animated-dropdown.html 1.97 KB
73bcce88   luigser   COMPONENTS
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  <!--
  Copyright (c) 2015 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="../../../paper-styles/paper-styles.html">
  <link rel="import" href="../../neon-animation-runner-behavior.html">
  
  
  <dom-module id="animated-dropdown">
  
    <style>
  
      :host {
        display: none;
        padding: 16px;
        background: white;
        color: black;
  
        @apply(--shadow-elevation-2dp);
      }
  
    </style>
  
    <template>
  
      <content></content>
  
    </template>
  
  </dom-module>
  
  <script>
  
    Polymer({
  
      is: 'animated-dropdown',
  
      behaviors: [
        Polymer.NeonAnimationRunnerBehavior
      ],
  
      properties: {
  
        animationConfig: {
          type: Object,
          value: function() {
            return {
              'entry': [{
                name: 'scale-up-animation',
                node: this,
                transformOrigin: '0 0'
              }],
              'exit': [{
                name: 'fade-out-animation',
                node: this
              }]
            }
          }
        },
  
        _showing: {
          type: Boolean,
          value: false
        }
  
      },
  
      listeners: {
        'neon-animation-finish': '_onAnimationFinish'
      },
  
      _onAnimationFinish: function() {
        if (this._showing) {
        } else {
          this.style.display = '';
        }
      },
  
      show: function() {
        this.style.display = 'inline-block';
        this._showing = true;
        this.playAnimation('entry');
      },
  
      hide: function() {
        this._showing = false;
        this.playAnimation('exit');
      }
  
    });
  
  </script>