<!-- @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"> <link rel="import" href="paper-ripple-behavior.html"> <script> /** * `Polymer.PaperInkyFocusBehavior` implements a ripple when the element has keyboard focus. * * @polymerBehavior Polymer.PaperInkyFocusBehavior */ Polymer.PaperInkyFocusBehaviorImpl = { observers: [ '_focusedChanged(receivedFocusFromKeyboard)' ], _focusedChanged: function(receivedFocusFromKeyboard) { if (receivedFocusFromKeyboard) { this.ensureRipple(); } 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; } }; /** @polymerBehavior Polymer.PaperInkyFocusBehavior */ Polymer.PaperInkyFocusBehavior = [ Polymer.IronButtonState, Polymer.IronControlState, Polymer.PaperRippleBehavior, Polymer.PaperInkyFocusBehaviorImpl ]; </script>