TrainSignManage/WebFrame/bower_components/jvectormap/src/multimap.js

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/**
 * Creates map with drill-down functionality.
 * @constructor
 * @param {Object} params Parameters to initialize map with.
 * @param {Number} params.maxLevel Maximum number of levels user can go through
 * @param {Object} params.main Config of the main map. See <a href="./jvm-map/">jvm.Map</a> for more information.
 * @param {Function} params.mapNameByCode Function go generate map name by region code. Default value is:
<pre>
function(code, multiMap) {
  return code.toLowerCase()+'_'+
         multiMap.defaultProjection+'_en';
}
</pre>
 * @param {Function} params.mapUrlByCode Function to generate map url by region code. Default value is:
<pre>
function(code, multiMap){
  return 'jquery-jvectormap-data-'+
         code.toLowerCase()+'-'+
         multiMap.defaultProjection+'-en.js';
}
</pre>
 */
jvm.MultiMap = function(params) {
  var that = this;

  this.maps = {};
  this.params = jvm.$.extend(true, {}, jvm.MultiMap.defaultParams, params);
  this.params.maxLevel = this.params.maxLevel || Number.MAX_VALUE;
  this.params.main = this.params.main || {};
  this.params.main.multiMapLevel = 0;
  this.history = [ this.addMap(this.params.main.map, this.params.main) ];
  this.defaultProjection = this.history[0].mapData.projection.type;
  this.mapsLoaded = {};

  this.params.container.css({position: 'relative'});
  this.backButton = jvm.$('<div/>').addClass('jvectormap-goback').text('Back').appendTo(this.params.container);
  this.backButton.hide();
  this.backButton.click(function(){
    that.goBack();
  });

  this.spinner = jvm.$('<div/>').addClass('jvectormap-spinner').appendTo(this.params.container);
  this.spinner.hide();
};

jvm.MultiMap.prototype = {
  addMap: function(name, config){
    var cnt = jvm.$('<div/>').css({
      width: '100%',
      height: '100%'
    });

    this.params.container.append(cnt);

    this.maps[name] = new jvm.Map(jvm.$.extend(config, {container: cnt}));
    if (this.params.maxLevel > config.multiMapLevel) {
      this.maps[name].container.on('regionClick.jvectormap', {scope: this}, function(e, code){
        var multimap = e.data.scope,
            mapName = multimap.params.mapNameByCode(code, multimap);