x-key-aware.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="../../paper-styles/paper-styles.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>