/**
@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
*/
import"../polymer/polymer-legacy.js";import{Polymer as e}from"../polymer/lib/legacy/polymer-fn.js";e({is:"iron-media-query",properties:{queryMatches:{type:Boolean,value:!1,readOnly:!0,notify:!0},query:{type:String,observer:"queryChanged"},full:{type:Boolean,value:!1},_boundMQHandler:{value:function(){return this.queryHandler.bind(this)}},_mq:{value:null}},attached:function(){this.style.display="none",this.queryChanged()},detached:function(){this._remove()},_add:function(){this._mq&&this._mq.addListener(this._boundMQHandler)},_remove:function(){this._mq&&this._mq.removeListener(this._boundMQHandler),this._mq=null},queryChanged:function(){this._remove();var e=this.query;e&&(this.full||"("===e[0]||(e="("+e+")"),this._mq=window.matchMedia(e),this._add(),this.queryHandler(this._mq))},queryHandler:function(e){this._setQueryMatches(e.matches)}});