ol3-google-maps/src/olgm/layer/google.js

OpenLayers 3 Google Maps integration library

goog.provide('olgm.layer.Google');

goog.require('ol');
goog.require('ol.layer.Group');


/**
 * An ol3 layer object serving the purpose of being added to the ol3 map
 * as dummy layer. The `mapTypeId` defines which Google Maps map type the
 * layer represents.
 *
 * @param {!olgmx.layer.GoogleOptions=} opt_options Options.
 * @constructor
 * @extends {ol.layer.Group}
 * @api
 */
olgm.layer.Google = function(opt_options) {

  var options = opt_options !== undefined ? opt_options : {};

  ol.layer.Group.call(this, /** @type {olx.layer.GroupOptions} */ (options));

  /**
   * @type {google.maps.MapTypeId.<(number|string)>|string}
   * @private
   */
  this.mapTypeId_ = options.mapTypeId !== undefined ? options.mapTypeId :
    google.maps.MapTypeId.ROADMAP;

  /**
   * @type {?Array.<google.maps.MapTypeStyle>}
   * @private
   */
  this.styles_ = options.styles ? options.styles : null;

};
ol.inherits(olgm.layer.Google, ol.layer.Group);


/**
 * @return {google.maps.MapTypeId.<(number|string)>|string} map type id
 * @api
 */
olgm.layer.Google.prototype.getMapTypeId = function() {
  return this.mapTypeId_;
};


/**
 * @return {?Array.<google.maps.MapTypeStyle>} map styles
 */
olgm.layer.Google.prototype.getStyles = function() {
  return this.styles_;
};