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 /* BUGS:
   8  * - infowindow is not properly reopened when the maps does not have the focus
   9  */
  10
  11 googlemaps_debug=true;
  12 googlemaps_debug_detailed=false;
  13
  14 (function($){
  15
  16    var GoogleMaps = Plugin.extend({
  17
  18         init: function(options, element) {
  19             if (googlemaps_debug) messages.debug("GoogleMaps.init");
  20             this._super(options, element);
  21
  22             /* Member variables */
  23             // query status
  24             this.received_all = false;
  25             this.received_set = false;
  26             this.in_set_buffer = Array();
  27
  28             // key -> { marker, checked }
  29             this.map_markers = {}
  30
  31             /* XXX Events XXX */
  32             this.el().on('show', this, this.on_show);
  33             // TODO in destructor
  34             // $(window).unbind('Hazelnut');
  35
  36             var query = manifold.query_store.find_analyzed_query(this.options.query_uuid);
  37             this.method = query.object;
  38
  39             var keys = manifold.metadata.get_key(this.method);
  40             this.key = (keys && keys.length == 1) ? keys[0] : null;
  41
  42             /* Setup query and record handlers */
  43             this.listen_query(options.query_uuid);
  44             this.listen_query(options.query_all_uuid, 'all');
  45
  46             /* GUI setup and event binding */
  47             this.initialize_map();
  48         }, // init
  49
  50         /* PLUGIN EVENTS */
  51
  52         on_show: function(e) {
  53             if (googlemaps_debug) messages.debug("on_show");
  54             var self = e.data;
  55             google.maps.event.trigger(self.map, 'resize');
  56         }, // on_show
  57
  58         /* GUI EVENTS */
  59
  60         /* GUI MANIPULATION */
  61
  62         /**
  63          */
  64         initialize_map: function() {
  65             if (googlemaps_debug) messages.debug("initialize_map");
  66             this.markerCluster = null;
  67             this.coords = new Array();
  68
  69             var myLatlng = new google.maps.LatLng(this.options.latitude, this.options.longitude);
  70             var myOptions = {
  71                 zoom: this.options.zoom,
  72                 center: myLatlng,
  73                 mapTypeId: google.maps.MapTypeId.ROADMAP,
  74             }
  75
  76             var domid = this.options.plugin_uuid + manifold.separator + 'map';
  77             var el = document.getElementById(domid);
  78             if (googlemaps_debug) messages.debug("gmap.initialize_map based on  domid=" + id + " el=" + el);
  79             this.map = new google.maps.Map(el, myOptions);
  80             this.infowindow = new google.maps.InfoWindow();
  81         }, // initialize_map
  82
  83         set_checkbox: function(record, checked) {
  84             if (googlemaps_debug_detailed) messages.debug ("set_checkbox");
  85             /* Default: checked = true */
  86             if (typeof checked === 'undefined')
  87                 checked = true;
  88
  89             var key_value;
  90             /* The function accepts both records and their key */
  91             switch (manifold.get_type(record)) {
  92                 case TYPE_VALUE:
  93                     key_value = record;
  94                     break;
  95                 case TYPE_RECORD:
  96                     /* XXX Test the key before ? */
  97                     key_value = record[this.key];
  98                     break;
  99                 default:
 100                     throw "Not implemented";
 101                     break;
 102             }
 103
 104             // we cannot directly edit html, since nothing but marker is displayed
 105             //var checkbox_id = this.id('checkbox', this.id_from_key(this.key, key_value));
 106             //checkbox_id = '#' + checkbox_id.replace(/\./g, '\\.');
 107             //$(checkbox_id, this.table.fnGetNodes()).attr('checked', checked);
 108
 109             var dict_info = this.map_markers[unfold.escape_id(key_value).replace(/\\/g, '')];
 110
 111
 112             // Update the marker content
 113             dict_info.in_set = checked;
 114             dict_info.marker.content = this.get_marker_content(dict_info.record, checked);
 115
 116             // Update opened infowindow
 117             // XXX Factor this code
 118             this.infowindow.close();
 119             this.infowindow.open(this.map, dict_info.marker);
 120             this.infowindow.setContent(dict_info.marker.content);
 121             this.els('map-button').unbind('click').click(this, this._button_click);
 122
 123             //var button = this.checkbox(record, checked);
 124             //this.el('checkbox', this.id_from_record(method, record)).html(button);
 125         },
 126
 127         checkbox: function(record, checked) {
 128             if (googlemaps_debug_detailed) messages.debug ("checkbox");
 129             if (typeof checked === 'undefined')
 130                 checked = false;
 131
 132             var method  = manifold.query_store.find_analyzed_query(this.options.query_uuid).object;
 133             var action = checked ? 'checked' : 'del';
 134             var ctx = {
 135                 action_class  : checked ? 'ui-icon-circle-minus' : 'ui-icon-circle-plus',
 136                 action_message: checked ? 'Remove from slice' : 'Add to slice',
 137             };
 138             var button = this.load_template('template', ctx);
 139
 140             var id_record = this.id_from_record(method, record);
 141             if (!id_record)
 142                 return 'ERROR';
 143             var id = this.id('checkbox', this.id_from_record(method, record));
 144             return "<div id='" + id + "'>" + button + "</div>";
 145         },
 146
 147         get_marker_content: function(record, checked) {
 148             if (googlemaps_debug_detailed) messages.debug ("get_marker_content");
 149             return '<p><b>' + this.method + '</b>: ' + get_value(record['resource_hrn']) + '<br/><b>network</b>: ' + get_value(record['network'])+'</p>' + this.checkbox(record, checked);
 150         },
 151
 152         /**
 153          */
 154         new_record: function(record) {
 155             if (googlemaps_debug_detailed) messages.debug ("new_record");
 156             // get the coordinates
 157             var latitude=get_value(record['latitude']);
 158             var longitude=get_value(record['longitude']);
 159             var hash = latitude + longitude;
 160
 161             // check to see if we've seen this hash before
 162             if(this.coords[hash] == null) {
 163                 // get coordinate object
 164                 var myLatlng = new google.maps.LatLng(latitude, longitude);
 165                 // store an indicator that we've seen this point before
 166                 this.coords[hash] = 1;
 167             } else {
 168                 // add some randomness to this point 1500 = 100 meters, 15000 = 10 meters
 169                 var lat = latitude + (Math.random() -.5) / 1500;
 170                 var lng = longitude + (Math.random() -.5) / 1500;
 171
 172                 // get the coordinate object
 173                 var myLatlng = new google.maps.LatLng(lat, lng);
 174             }
 175             // XXX not working
 176             if (!(record['latitude'])) {
 177                 return true;
 178             }
 179
 180             //jQuery(".map-button").click(button_click);
 181             //if(jQuery.inArray(record, rows)>-1){
 182                 var marker = new google.maps.Marker({
 183                     position: myLatlng,
 184                     title: get_value(record['hostname']),
 185                     // This should be done by the rendering
 186                     content: this.get_marker_content(record, false),
 187                 });
 188
 189                 this.addInfoWindow(marker, this.map);
 190                 var key_value = (this.key in record) ? record[this.key] : null;
 191                 if (!key_value)
 192                     return;
 193                 this.map_markers[unfold.escape_id(key_value).replace(/\\/g, '')] = {
 194                     marker: marker,
 195                     in_set: false,
 196                     record: record,
 197                     value: key_value
 198                 }
 199             //}
 200
 201         }, // new_record
 202
 203         addInfoWindow: function(marker, map) {
 204             if (googlemaps_debug_detailed) messages.debug ("addInfoWindow");
 205             var self = this;
 206             google.maps.event.addListener(marker, 'click', function () {
 207                 if(self.infowindow){
 208                     self.infowindow.close();
 209                 }
 210                 self.infowindow.setContent(marker.content);// = new google.maps.InfoWindow({ content: marker.content });
 211                 self.infowindow.open(map, marker);
 212                 // onload of the infowindow on the map, bind a click on a button
 213                 google.maps.event.addListener(self.infowindow, 'domready', function() {
 214                     self.els('map-button').unbind('click').click(self, self._button_click);
 215 //                    jQuery(".map-button").click({instance: instance_, infoWindow: object.infowindow}, button_click);
 216                 });
 217             });
 218         }, // addInfoWindow
 219
 220
 221         /*************************** QUERY HANDLER ****************************/
 222
 223         /*************************** RECORD HANDLER ***************************/
 224
 225         on_new_record: function(record) {
 226             if (googlemaps_debug_detailed) messages.debug("on_new_record");
 227             if (this.received_all)
 228                 // update checkbox for record
 229                 this.set_checkbox(record);
 230             else
 231                 // store for later update of checkboxes
 232                 this.in_set_buffer.push(record);
 233         },
 234
 235         on_clear_records: function(record) {
 236             if (googlemaps_debug_detailed) messages.debug("on_clear_records");
 237         },
 238
 239         // Could be the default in parent
 240         on_query_in_progress: function() {
 241             if (googlemaps_debug) messages.debug("on_query_in_progress");
 242             this.spin();
 243         },
 244
 245         on_query_done: function() {
 246             if (googlemaps_debug) messages.debug("on_query_done");
 247             if (this.received_all)
 248                 this.unspin();
 249             this.received_set = true;
 250         },
 251
 252         on_field_state_changed: function(data) {
 253             if (googlemaps_debug) messages.debug("on_field_state_changed");
 254             switch(data.request) {
 255                 case FIELD_REQUEST_ADD:
 256                 case FIELD_REQUEST_ADD_RESET:
 257                     this.set_checkbox(data.value, true);
 258                     break;
 259                 case FIELD_REQUEST_REMOVE:
 260                 case FIELD_REQUEST_REMOVE_RESET:
 261                     this.set_checkbox(data.value, false);
 262                     break;
 263                 default:
 264                     break;
 265             }
 266         },
 267
 268
 269         // all
 270
 271         on_all_new_record: function(record) {
 272             if (googlemaps_debug_detailed) messages.debug("on_all_new_record");
 273             this.new_record(record);
 274         },
 275
 276         on_all_clear_records: function() {
 277             if (googlemaps_debug) messages.debug("on_all_clear_records");
 278         },
 279
 280         on_all_query_in_progress: function() {
 281             if (googlemaps_debug) messages.debug("on_all_query_in_progress");
 282             // XXX parent
 283             this.spin();
 284         },
 285
 286         on_all_query_done: function() {
 287             if (googlemaps_debug) messages.debug("on_all_query_done");
 288             // MarkerClusterer
 289             var markers = [];
 290             $.each(this.map_markers, function (k, v) { markers.push(v.marker); });
 291
 292             this.markerCluster = new MarkerClusterer(this.map, markers, {zoomOnClick: false});
 293             google.maps.event.addListener(this.markerCluster, "clusterclick", function (cluster) {
 294                 var cluster_markers = cluster.getMarkers();
 295                 var bounds  = new google.maps.LatLngBounds();
 296                 /*
 297                 * date: 24/05/2012
 298                 * author: lbaron
 299                 * Firefox JS Error - replaced $.each by JQuery.each
 300                 */
 301                 jQuery.each(cluster_markers, function(i, marker){
 302                     bounds.extend(marker.getPosition());
 303                 });
 304
 305                 //map.setCenter(bounds.getCenter(), map.getBoundsZoomLevel(bounds));
 306                 this.map.fitBounds(bounds);
 307             });
 308
 309             var self = this;
 310             if (this.received_set) {
 311                 /* XXX needed ? XXX We uncheck all checkboxes ... */
 312                 //$("[id^='datatables-checkbox-" + this.options.plugin_uuid +"']").attr('checked', false);
 313
 314                 /* ... and check the ones specified in the resource list */
 315                 $.each(this.in_set_buffer, function(i, record) {
 316                     self.set_checkbox(record, true);
 317                 });
 318
 319                 this.unspin();
 320             }
 321             this.received_all = true;
 322
 323         }, // on_all_query_done
 324
 325         /************************** PRIVATE METHODS ***************************/
 326
 327         _button_click: function(e) {
 328             if (googlemaps_debug) messages.debug("_button_click");
 329             var self   = e.data;
 330
 331             var escaped_key = self.key_from_id($(this).parent().attr('id'), 'checkbox');
 332             var info_dict = self.map_markers[escaped_key];
 333             var in_set = info_dict.in_set;
 334             var value = info_dict.value;
 335
 336             var escaped_key = self.map_markers[self.key_from_id($(this).parent().attr('id'), 'checkbox')]
 337             manifold.raise_event(self.options.query_uuid, (in_set) ? SET_REMOVED : SET_ADD, value);
 338         } // _button_click
 339
 340     });
 341
 342     $.plugin('GoogleMaps', GoogleMaps);
 343
 344 })(jQuery);