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bower_components/iron-a11y-keys/demo/x-key-aware.html 2.1 KB
a1a3bc73   Luigi Serra   graphs updates
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  <!--
  @license
  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/color.html">
  <link rel="import" href="../iron-a11y-keys.html">
  
  <dom-module id="x-key-aware">
    <style>
      :host {
        display: block;
        position: relative;
      }
  
      pre {
        color: var(--google-blue-700);
      }
  
      .keys {
        line-height: 25px;
      }
  
      .keys span {
        cursor: default;
        background-color: var(--google-grey-100);
        border: 1px solid var(--google-grey-300);
        padding: 1px 5px;
        border-radius: 5px;
      }
    </style>
    <template>
      <h4>Press any of these keys</h4>
      <span class="keys">
        <template is="dom-repeat" items="[[boundKeys]]">
          <span>{{item}}</span>
        </template>
      </span>
      <iron-a11y-keys
        id="keys"
        keys="* pageup pagedown left right down up shift+a alt+a home end space enter"
        target="[[target]]"
        on-keys-pressed="_updatePressed">
      </iron-a11y-keys>
      <pre id="output">[[pressed]]</pre>
    </template>
  </dom-module>
  
  <script>
    Polymer({
      is: 'x-key-aware',
  
      properties: {
        pressed: {
          type: String,
          readOnly: true,
          value: ''
        },
  
        boundKeys: {
          type: Array
        },
  
        target: {
          type: Object,
          value: function() {
            return document.body;
          }
        }
      },
  
      ready: function() {
        this.boundKeys = this.$.keys.keys.split(' ');
      },
  
      _updatePressed: function(event) {
        console.log(event.detail);
  
        this._setPressed(
          this.pressed + event.detail.combo + ' pressed!\n'
        );
      }
    });
  </script>