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bower_components/google-apis/google-maps-api.html 3.98 KB
73bcce88   luigser   COMPONENTS
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  <!--
  Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
  This code may only be used under the BSD style license found at https://polymer.github.io/LICENSE.txt
  The complete set of authors may be found at https://polymer.github.io/AUTHORS.txt
  The complete set of contributors may be found at https://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 https://polymer.github.io/PATENTS.txt
  -->
  
  <link rel="import" href="../polymer/polymer.html">
  <link rel="import" href="../iron-jsonp-library/iron-jsonp-library.html">
  
  <script>
  /**
  Dynamically loads the Google Maps JavaScript API, firing the `api-load` event when ready.
  
  #### Example
  
      <google-maps-api api-key="abc123" version="3.exp"></google-maps-api>
      <script>
        var mapsAPI = document.querySelector('google-maps-api');
        mapsAPI.addEventListener('api-load', function(e) {
          // this.api === google.maps
        });
      <script>
  
  Any number of components can use `<google-maps-api>` elements, and the library will only be loaded once.
  
  @blurb Element wrapper around Google Maps API.
  
   */
    Polymer({
  
      is: 'google-maps-api',
  
      behaviors: [
        Polymer.IronJsonpLibraryBehavior
      ],
  
      properties: {
  
        /** @private */
        mapsUrl: {
          type: String,
          value: 'https://maps.googleapis.com/maps/api/js?callback=%%callback%%'
        },
  
        /**
         * A Maps API key. To obtain an API key, see developers.google.com/maps/documentation/javascript/tutorial#api_key.
         */
        apiKey: {
          type: String,
          value: ''
        },
  
        /**
         * A Maps API for Business Client ID. To obtain a Maps API for Business Client ID, see developers.google.com/maps/documentation/business/.
         * If set, a Client ID will take precedence over an API Key.
         */
        clientId: {
          type: String,
          value: ''
        },
  
        /**
         * The libraries to load with this map. For more information
         * see https://developers.google.com/maps/documentation/javascript/libraries.
         */
        libraries: {
          type: String,
          value: ''
        },
  
        /**
         * Version of the Maps API to use.
         */
        version: {
          type: String,
          value: '3.exp'
        },
  
        /**
         * The localized language to load the Maps API with. For more information
         * see https://developers.google.com/maps/documentation/javascript/basics#Language
         *
         * Note: the Maps API defaults to the preffered language setting of the browser.
         * Use this parameter to override that behavior.
         */
        language: {
          type: String,
          value: ''
        },
        /**
         * If true, sign-in is enabled.
         * See https://developers.google.com/maps/documentation/javascript/signedin#enable_sign_in
         */
        signedIn: {
          type: Boolean,
          value: false
        },
  
        /**
         * Fired when the Maps API library is loaded and ready.
         * @event api-load
         */
        /**
         * Name of event fired when library is loaded and available.
         */
        notifyEvent: {
          type: String,
          value: 'api-load'
        },
  
        /** @private */
        libraryUrl: {
          type: String,
          computed: '_computeUrl(mapsUrl, version, libraries, apiKey, clientId, language, signedIn)'
        }
      },
  
      _computeUrl: function(mapsUrl, version, libraries, apiKey, clientId, language, signedIn) {
        var url = mapsUrl + '&v=' + version;
  
        if (libraries) {
          url += "&libraries=" + libraries;
        }
  
        if (apiKey && !clientId) {
          url += '&key=' + apiKey;
        }
  
        if (clientId) {
          url += '&client=' + clientId;
        }
  
        if (language) {
          url += '&language=' + language;
        }
  
        if (signedIn) {
          url += '&signed_in=' + signedIn;
        }
        return url;
      },
  
      /**
       * Provides the google.maps JS API namespace.
       */
      get api() {
        return google.maps;
      }
    });
  </script>