third_party/polymer/v1_0/components/paper-behaviors/paper-inky-focus-behavior.html

   1 <!--
   2 @license
   3 Copyright (c) 2015 The Polymer Project Authors. All rights reserved.
   4 This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
   5 The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
   6 The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
   7 Code distributed by Google as part of the polymer project is also
   8 subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
   9 -->
  10
  11 <link rel="import" href="../polymer/polymer.html">
  12 <link rel="import" href="../iron-behaviors/iron-button-state.html">
  13
  14 <script>
  15
  16   /**
  17    * `Polymer.PaperInkyFocusBehavior` implements a ripple when the element has keyboard focus.
  18    *
  19    * @polymerBehavior Polymer.PaperInkyFocusBehavior
  20    */
  21   Polymer.PaperInkyFocusBehaviorImpl = {
  22
  23     observers: [
  24       '_focusedChanged(receivedFocusFromKeyboard)'
  25     ],
  26
  27     _focusedChanged: function(receivedFocusFromKeyboard) {
  28       if (!this.$.ink) {
  29         return;
  30       }
  31
  32       this.$.ink.holdDown = receivedFocusFromKeyboard;
  33     }
  34
  35   };
  36
  37   /** @polymerBehavior Polymer.PaperInkyFocusBehavior */
  38   Polymer.PaperInkyFocusBehavior = [
  39     Polymer.IronButtonState,
  40     Polymer.IronControlState,
  41     Polymer.PaperInkyFocusBehaviorImpl
  42   ];
  43
  44 </script>