paper-inky-focus-behavior.html
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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">
<link rel="import" href="paper-ripple-behavior.html">
<script>
/**
* `Polymer.PaperInkyFocusBehavior` implements a ripple when the element has keyboard focus.
*
* @polymerBehavior Polymer.PaperInkyFocusBehaviorImpl
*/
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>