OLD | NEW |
| (Empty) |
1 | |
2 | |
3 Polymer({ | |
4 | |
5 is: 'iron-media-query', | |
6 | |
7 properties: { | |
8 | |
9 /** | |
10 * The Boolean return value of the media query. | |
11 * | |
12 * @attribute queryMatches | |
13 * @type Boolean | |
14 * @default false | |
15 */ | |
16 queryMatches: { | |
17 type: Boolean, | |
18 value: false, | |
19 readOnly: true, | |
20 notify: true | |
21 }, | |
22 | |
23 /** | |
24 * The CSS media query to evaluate. | |
25 * | |
26 * @attribute query | |
27 * @type String | |
28 */ | |
29 query: { | |
30 type: String, | |
31 observer: 'queryChanged' | |
32 } | |
33 | |
34 }, | |
35 | |
36 created: function() { | |
37 this._mqHandler = this.queryHandler.bind(this); | |
38 }, | |
39 | |
40 queryChanged: function(query) { | |
41 if (this._mq) { | |
42 this._mq.removeListener(this._mqHandler); | |
43 } | |
44 if (query[0] !== '(') { | |
45 query = '(' + query + ')'; | |
46 } | |
47 this._mq = window.matchMedia(query); | |
48 this._mq.addListener(this._mqHandler); | |
49 this.queryHandler(this._mq); | |
50 }, | |
51 | |
52 queryHandler: function(mq) { | |
53 this._setQueryMatches(mq.matches); | |
54 } | |
55 | |
56 }); | |
57 | |
OLD | NEW |