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bower_components/paper-behaviors/paper-inky-focus-behavior.html 1.66 KB
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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="../iron-behaviors/iron-button-state.html">
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  <link rel="import" href="paper-ripple-behavior.html">
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  <script>
  
    /**
     * `Polymer.PaperInkyFocusBehavior` implements a ripple when the element has keyboard focus.
     *
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     * @polymerBehavior Polymer.PaperInkyFocusBehaviorImpl
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     */
    Polymer.PaperInkyFocusBehaviorImpl = {
  
      observers: [
        '_focusedChanged(receivedFocusFromKeyboard)'
      ],
  
      _focusedChanged: function(receivedFocusFromKeyboard) {
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        if (receivedFocusFromKeyboard) {
          this.ensureRipple();
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        }
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        if (this.hasRipple()) {
          this._ripple.holdDown = receivedFocusFromKeyboard;
        }
      },
  
      _createRipple: function() {
        var ripple = Polymer.PaperRippleBehavior._createRipple();
        ripple.id = 'ink';
        ripple.setAttribute('center', '');
        ripple.classList.add('circle');
        return ripple;
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      }
  
    };
  
    /** @polymerBehavior Polymer.PaperInkyFocusBehavior */
    Polymer.PaperInkyFocusBehavior = [
      Polymer.IronButtonState,
      Polymer.IronControlState,
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      Polymer.PaperRippleBehavior,
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      Polymer.PaperInkyFocusBehaviorImpl
    ];
  
  </script>