plugins/googlemaps/static/js/googlemaps.js

   1 /**
   2  * Description: display a query result in a Google map
   3  * Copyright (c) 2012-2013 UPMC Sorbonne Universite - INRIA
   4  * License: GPLv3
   5  */
   6
   7 (function($){
   8
   9    var GoogleMaps = Plugin.extend({
  10
  11         init: function(options, element)
  12         {
  13             this._super(options, element);
  14
  15             /* Member variables */
  16             // query status
  17             this.received_all = false;
  18             this.received_set = false;
  19             this.in_set_buffer = Array();
  20
  21             // key -> { marker, checked }
  22             this.map_markers = {}
  23
  24             /* XXX Events XXX */
  25             this.el().on('show', this, this.on_show);
  26             // TODO in destructor
  27             // $(window).unbind('Hazelnut');
  28
  29             var query = manifold.query_store.find_analyzed_query(this.options.query_uuid);
  30             this.method = query.object;
  31
  32             var keys = manifold.metadata.get_key(this.method);
  33             this.key = (keys && keys.length == 1) ? keys[0] : null;
  34
  35             /* Setup query and record handlers */
  36             this.listen_query(options.query_uuid);
  37             this.listen_query(options.query_all_uuid, 'all');
  38
  39             /* GUI setup and event binding */
  40             this.initialize_map();
  41         }, // init
  42
  43         /* PLUGIN EVENTS */
  44
  45         on_show: function(e)
  46         {
  47             var self = e.data;
  48             google.maps.event.trigger(self.map, 'resize');
  49         }, // on_show
  50
  51         /* GUI EVENTS */
  52
  53         /* GUI MANIPULATION */
  54
  55         /**
  56          */
  57         initialize_map: function()
  58         {
  59             this.markerCluster = null;
  60             this.coords = new Array();
  61
  62             var myLatlng = new google.maps.LatLng(this.options.latitude, this.options.longitude);
  63             var myOptions = {
  64                 zoom: this.options.zoom,
  65                 center: myLatlng,
  66                 mapTypeId: google.maps.MapTypeId.ROADMAP
  67             }
  68
  69             var id = this.options.plugin_uuid + manifold.separator + 'map';
  70             this.map = new google.maps.Map(document.getElementById(id), myOptions);
  71             this.infowindow = new google.maps.InfoWindow();
  72         }, // initialize_map
  73
  74         set_checkbox: function(record, checked)
  75         {
  76             var key_value;
  77             /* The function accepts both records and their key */
  78             switch (manifold.get_type(record)) {
  79                 case TYPE_VALUE:
  80                     key_value = record;
  81                     break;
  82                 case TYPE_RECORD:
  83                     /* XXX Test the key before ? */
  84                     key_value = record[this.key];
  85                     break;
  86                 default:
  87                     throw "Not implemented";
  88                     break;
  89             }
  90
  91             // we cannot directly edit html, since nothing but marker is displayed
  92             //var checkbox_id = this.id('checkbox', this.id_from_key(this.key, key_value));
  93             //checkbox_id = '#' + checkbox_id.replace(/\./g, '\\.');
  94             //$(checkbox_id, this.table.fnGetNodes()).attr('checked', checked);
  95
  96             var dict_info = this.map_markers[unfold.escape_id(key_value).replace(/\\/g, '')];
  97
  98             /* Default: swap check status */
  99             if (typeof checked === 'undefined')
 100                 dict_info.in_set = !dict_info.in_set;
 101             else
 102                 dict_info.in_set = checked;
 103
 104             // Update the marker content
 105             dict_info.marker.content = this.get_marker_content(dict_info.record, checked);
 106
 107             // Update opened infowindow
 108             // XXX Factor this code
 109             this.infowindow.close();
 110             this.infowindow.setContent(dict_info.marker.content);
 111             this.infowindow.open(this.map, dict_info.marker);
 112             this.els('map-button').unbind('click').click(this, this._button_click);
 113
 114             //var button = this.checkbox(record, checked);
 115             //this.el('checkbox', this.id_from_record(method, record)).html(button);
 116         },
 117
 118         checkbox: function(record, checked)
 119         {
 120             if (typeof checked === 'undefined')
 121                 checked = false;
 122
 123             var method  = manifold.query_store.find_analyzed_query(this.options.query_uuid).object;
 124             var action = checked ? 'checked' : 'del';
 125             var ctx = {
 126                 action_class  : checked ? 'ui-icon-circle-minus' : 'ui-icon-circle-plus',
 127                 action_message: checked ? 'Remove from slice' : 'Add to slice',
 128             };
 129             var button = this.load_template('template', ctx);
 130
 131             var id_record = this.id_from_record(method, record);
 132             if (!id_record)
 133                 return 'ERROR';
 134             var id = this.id('checkbox', this.id_from_record(method, record));
 135             return "<div id='" + id + "'>" + button + "</div>";
 136         },
 137
 138         get_marker_content: function(record, checked)
 139         {
 140             return '<p><b>' + this.method + '</b>: ' + get_value(record['resource_hrn']) + '<br/><b>network</b>: ' + get_value(record['network'])+'</p>' + this.checkbox(record, checked);
 141         },
 142
 143         /**
 144          */
 145         new_record: function(record)
 146         {
 147             // get the coordinates
 148             var latitude=get_value(record['latitude']);
 149             var longitude=get_value(record['longitude']);
 150             var hash = latitude + longitude;
 151
 152             // check to see if we've seen this hash before
 153             if(this.coords[hash] == null) {
 154                 // get coordinate object
 155                 var myLatlng = new google.maps.LatLng(latitude, longitude);
 156                 // store an indicator that we've seen this point before
 157                 this.coords[hash] = 1;
 158             } else {
 159                 // add some randomness to this point 1500 = 100 meters, 15000 = 10 meters
 160                 var lat = latitude + (Math.random() -.5) / 1500;
 161                 var lng = longitude + (Math.random() -.5) / 1500;
 162
 163                 // get the coordinate object
 164                 var myLatlng = new google.maps.LatLng(lat, lng);
 165             }
 166             // XXX not working
 167             if (!(record['latitude'])) {
 168                 return true;
 169             }
 170
 171             //jQuery(".map-button").click(button_click);
 172             //if(jQuery.inArray(record, rows)>-1){
 173                 var marker = new google.maps.Marker({
 174                     position: myLatlng,
 175                     title: get_value(record['hostname']),
 176                     // This should be done by the rendering
 177                     content: this.get_marker_content(record, false),
 178                 });
 179
 180                 this.addInfoWindow(marker, this.map);
 181                 var key_value = (this.key in record) ? record[this.key] : null;
 182                 if (!key_value)
 183                     return;
 184                 this.map_markers[unfold.escape_id(key_value).replace(/\\/g, '')] = {
 185                     marker: marker,
 186                     in_set: false,
 187                     record: record,
 188                     value: key_value
 189                 }
 190             //}
 191
 192         }, // new_record
 193
 194         addInfoWindow: function(marker, map)
 195         {
 196             var self = this;
 197             google.maps.event.addListener(marker, 'click', function () {
 198                 if(self.infowindow){
 199                     self.infowindow.close();
 200                 }
 201                 self.infowindow.setContent(marker.content);// = new google.maps.InfoWindow({ content: marker.content });
 202                 self.infowindow.open(map, marker);
 203                 // onload of the infowindow on the map, bind a click on a button
 204                 google.maps.event.addListener(self.infowindow, 'domready', function() {
 205                     self.els('map-button').unbind('click').click(self, self._button_click);
 206 //                    jQuery(".map-button").click({instance: instance_, infoWindow: object.infowindow}, button_click);
 207                 });
 208             });
 209         }, // addInfoWindow
 210
 211
 212         /*************************** QUERY HANDLER ****************************/
 213
 214         /*************************** RECORD HANDLER ***************************/
 215
 216         on_new_record: function(record)
 217         {
 218             if (this.received_all)
 219                 // update checkbox for record
 220                 this.set_checkbox(record);
 221             else
 222                 // store for later update of checkboxes
 223                 this.in_set_buffer.push(record);
 224         },
 225
 226         on_clear_records: function(record)
 227         {
 228
 229         },
 230
 231         // Could be the default in parent
 232         on_query_in_progress: function()
 233         {
 234             this.spin();
 235         },
 236
 237         on_query_done: function()
 238         {
 239             if (this.received_all)
 240                 this.unspin();
 241             this.received_set = true;
 242         },
 243
 244         on_field_state_changed: function(data)
 245         {
 246             switch(data.request) {
 247                 case FIELD_REQUEST_ADD:
 248                     this.set_checkbox(data.value, true);
 249                     break;
 250                 case FIELD_REQUEST_REMOVE:
 251                     this.set_checkbox(data.value, false);
 252                     break;
 253                 case FIELD_REQUEST_RESET:
 254                     this.set_checkbox(data.value); // swap
 255                     break;
 256                 default:
 257                     break;
 258             }
 259         },
 260
 261
 262         // all
 263
 264         on_all_new_record: function(record)
 265         {
 266             this.new_record(record);
 267         },
 268
 269         on_all_clear_records: function()
 270         {
 271         },
 272
 273         on_all_query_in_progress: function()
 274         {
 275             // XXX parent
 276             this.spin();
 277         },
 278
 279         on_all_query_done: function()
 280         {
 281
 282             // MarkerClusterer
 283             var markers = [];
 284             $.each(this.map_markers, function (k, v) { markers.push(v.marker); });
 285
 286             this.markerCluster = new MarkerClusterer(this.map, markers, {zoomOnClick: false});
 287             google.maps.event.addListener(this.markerCluster, "clusterclick", function (cluster) {
 288                 var cluster_markers = cluster.getMarkers();
 289                 var bounds  = new google.maps.LatLngBounds();
 290                 /*
 291                 * date: 24/05/2012
 292                 * author: lbaron
 293                 * Firefox JS Error - replaced $.each by JQuery.each
 294                 */
 295                 jQuery.each(cluster_markers, function(i, marker){
 296                     bounds.extend(marker.getPosition());
 297                 });
 298
 299                 //map.setCenter(bounds.getCenter(), map.getBoundsZoomLevel(bounds));
 300                 this.map.fitBounds(bounds);
 301             });
 302
 303             var self = this;
 304             if (this.received_set) {
 305                 /* XXX needed ? XXX We uncheck all checkboxes ... */
 306                 //$("[id^='datatables-checkbox-" + this.options.plugin_uuid +"']").attr('checked', false);
 307
 308                 /* ... and check the ones specified in the resource list */
 309                 $.each(this.in_set_buffer, function(i, record) {
 310                     self.set_checkbox(record, true);
 311                 });
 312
 313                 this.unspin();
 314             }
 315             this.received_all = true;
 316
 317         }, // on_all_query_done
 318
 319         /************************** PRIVATE METHODS ***************************/
 320
 321         _button_click: function(e)
 322         {
 323             var self   = e.data;
 324
 325             var escaped_key = self.key_from_id($(this).parent().attr('id'), 'checkbox');
 326             var info_dict = self.map_markers[escaped_key];
 327             var in_set = info_dict.in_set;
 328             var value = info_dict.value;
 329
 330             var escaped_key = self.map_markers[self.key_from_id($(this).parent().attr('id'), 'checkbox')]
 331             manifold.raise_event(self.options.query_uuid, (in_set) ? SET_REMOVED : SET_ADD, value);
 332         } // _button_click
 333
 334     });
 335
 336     $.plugin('GoogleMaps', GoogleMaps);
 337
 338 })(jQuery);