1<!--
2Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
3This code may only be used under the BSD style license found at https://polymer.github.io/LICENSE.txt
4The complete set of authors may be found at https://polymer.github.io/AUTHORS.txt
5The complete set of contributors may be found at https://polymer.github.io/CONTRIBUTORS.txt
6Code distributed by Google as part of the polymer project is also
7subject to an additional IP rights grant found at https://polymer.github.io/PATENTS.txt
8-->
9
10<link rel="import" href="../polymer/polymer.html">
11<link rel="import" href="../iron-jsonp-library/iron-jsonp-library.html">
12
13<!--
14Dynamically loads the Google+ JavaScript API, firing the `api-load` event when ready.
15
16Any number of components can use `<google-plusone-api>` elements, and the library will only be loaded once.
17-->
18<script>
19  Polymer({
20
21    is: 'google-plusone-api',
22
23    behaviors: [
24      Polymer.IronJsonpLibraryBehavior
25    ],
26
27    properties: {
28
29      /** @private */
30      libraryUrl:  {
31        type: String,
32        value: 'https://apis.google.com/js/plusone.js?onload=%%callback%%'
33      },
34
35      /**
36       * Fired when the API library is loaded and available.
37       * @event js-api-load
38       */
39      /**
40       * Name of event fired when library is loaded and available.
41       */
42      notifyEvent:  {
43        type: String,
44        value: 'api-load'
45      }
46
47    },
48
49    get api() {
50      return gapi;
51    }
52
53  });
54</script>
55