plugins/querytable/static/js/querytable.js

   1 /**
   2  * Description: display a query result in a datatables-powered <table>
   3  * Copyright (c) 2012-2013 UPMC Sorbonne Universite - INRIA
   4  * License: GPLv3
   5  */
   6
   7 QUERYTABLE_BGCOLOR_RESET   = 0;
   8 QUERYTABLE_BGCOLOR_ADDED   = 1;
   9 QUERYTABLE_BGCOLOR_REMOVED = 2;
  10
  11 (function($){
  12
  13     var debug=false;
  14 //    debug=true
  15
  16     var QueryTable = Plugin.extend({
  17
  18         init: function(options, element) {
  19         this.classname="querytable";
  20             this._super(options, element);
  21
  22             /* Member variables */
  23             var query = manifold.query_store.find_analyzed_query(this.options.query_uuid);
  24             this.object = query.object; // XXX
  25
  26             /* Events */
  27             this.elmt().on('show', this, this.on_show);
  28             this.elmt().on('shown.bs.tab', this, this.on_show);
  29             this.elmt().on('resize', this, this.on_resize);
  30
  31             //// we need 2 different keys
  32             // * canonical_key is the primary key as derived from metadata (typically: urn)
  33             //   and is used to communicate about a given record with the other plugins
  34             // * init_key is a key that both kinds of records
  35             //   (i.e. records returned by both queries) must have (typically: hrn or hostname)
  36             //   in general query_all will return well populated records, but query
  37             //   returns records with only the fields displayed on startup
  38             var keys = manifold.metadata.get_key(this.object);
  39             this.canonical_key = (keys && keys.length == 1) ? keys[0] : undefined;
  40             //
  41             this.init_key = this.options.init_key;
  42             // have init_key default to canonical_key
  43             this.init_key = this.init_key || this.canonical_key;
  44
  45             /* sanity check */
  46             if ( ! this.init_key )
  47                 messages.warning ("QueryTable : cannot find init_key");
  48             if ( ! this.canonical_key )
  49                 messages.warning ("QueryTable : cannot find canonical_key");
  50             if (debug)
  51                 messages.debug("querytable: canonical_key="+this.canonical_key+" init_key="+this.init_key);
  52
  53             /* Setup query and record handlers */
  54             this.listen_query(options.query_uuid);
  55
  56             /* GUI setup and event binding */
  57             this.initialize_table();
  58         },
  59
  60         /* PLUGIN EVENTS */
  61
  62         on_show: function(e) {
  63         if (debug) messages.debug("querytable.on_show");
  64             var self = e.data;
  65             self.table.fnAdjustColumnSizing();
  66     },
  67
  68         on_resize: function(e) {
  69         if (debug) messages.debug("querytable.on_resize");
  70             var self = e.data;
  71             self.table.fnAdjustColumnSizing();
  72     },
  73
  74         /* GUI EVENTS */
  75
  76         /* GUI MANIPULATION */
  77
  78         initialize_table: function()
  79         {
  80             /* Transforms the table into DataTable, and keep a pointer to it */
  81             var self = this;
  82             var actual_options = {
  83                 // Customize the position of Datatables elements (length,filter,button,...)
  84                 // we use a fluid row on top and another on the bottom, making sure we take 12 grid elt's each time
  85                 //sDom: "<'row'<'col-xs-5'l><'col-xs-1'r><'col-xs-6'f>>t<'row'<'col-xs-5'i><'col-xs-7'p>>",
  86                 sDom: "<'row'<'col-xs-5'f><'col-xs-1'r><'col-xs-6 columns_selector'>>t<'row'<'col-xs-5'l><'col-xs-7'p>>",
  87         // XXX as of sept. 2013, I cannot locate a bootstrap3-friendly mode for now
  88         // hopefully this would come with dataTables v1.10 ?
  89         // in any case, search for 'sPaginationType' all over the code for more comments
  90                 sPaginationType: 'bootstrap',
  91                 // Handle the null values & the error : Datatables warning Requested unknown parameter
  92                 // http://datatables.net/forums/discussion/5331/datatables-warning-...-requested-unknown-parameter/p2
  93                 aoColumnDefs: [{sDefaultContent: '', aTargets: [ '_all' ]}],
  94                 // WARNING: this one causes tables in a 'tabs' that are not exposed at the time this is run to show up empty
  95                 // sScrollX: '100%',       /* Horizontal scrolling */
  96                 bProcessing: true,      /* Loading */
  97                 fnDrawCallback: function() { self._querytable_draw_callback.call(self); },
  98                 fnRowCallback: function( nRow, aData, iDisplayIndex, iDisplayIndexFull ) {
  99                     // This function is called on fnAddData to set the TR id. What about fnUpdate ?
 100
 101                     // Get the key from the raw data array aData
 102                     var key = self.canonical_key;
 103
 104                     // Get the index of the key in the columns
 105                     var cols = self._get_columns();
 106                     var index = self.getColIndex(key, cols);
 107                     if (index != -1) {
 108                         // The key is found in the table, set the TR id after the data
 109                         $(nRow).attr('id', self.id_from_key(key, aData[index]));
 110                     }
 111
 112                     // That's the usual return value
 113                     return nRow;
 114                 }
 115                 // XXX use $.proxy here !
 116             };
 117             // the intention here is that options.datatables_options as coming from the python object take precedence
 118         // xxx DISABLED by jordan: was causing errors in datatables.js
 119         // xxx turned back on by Thierry - this is the code that takes python-provided options into account
 120         // check your datatables_options tag instead
 121         // however, we have to accumulate in aoColumnDefs from here (above)
 122         // and from the python wrapper (checkboxes management, plus any user-provided aoColumnDefs)
 123         if ( 'aoColumnDefs' in this.options.datatables_options) {
 124         actual_options['aoColumnDefs']=this.options.datatables_options['aoColumnDefs'].concat(actual_options['aoColumnDefs']);
 125         delete this.options.datatables_options['aoColumnDefs'];
 126         }
 127         $.extend(actual_options, this.options.datatables_options );
 128             this.table = this.elmt('table').dataTable(actual_options);
 129
 130             /* Setup the SelectAll button in the dataTable header */
 131             /* xxx not sure this is still working */
 132             var oSelectAll = $('#datatableSelectAll-'+ this.options.plugin_uuid);
 133             oSelectAll.html("<span class='glyphicon glyphicon-ok' style='float:right;display:inline-block;'></span>Select All");
 134             oSelectAll.button();
 135             oSelectAll.css('font-size','11px');
 136             oSelectAll.css('float','right');
 137             oSelectAll.css('margin-right','15px');
 138             oSelectAll.css('margin-bottom','5px');
 139             oSelectAll.unbind('click');
 140             oSelectAll.click(this._selectAll);
 141
 142             /* Add a filtering function to the current table
 143              * Note: we use closure to get access to the 'options'
 144              */
 145             $.fn.dataTableExt.afnFiltering.push(function( oSettings, aData, iDataIndex ) {
 146                 /* No filtering if the table does not match */
 147                 if (oSettings.nTable.id != self.options.plugin_uuid + '__table')
 148                     return true;
 149                 return self._querytable_filter.call(self, oSettings, aData, iDataIndex);
 150             });
 151
 152             /* Processing hidden_columns */
 153             $.each(this.options.hidden_columns, function(i, field) {
 154                 self.hide_column(field);
 155             });
 156             $(".dataTables_filter").append("<div style='display:inline-block;height:27px;width:27px;padding-left:6px;padding-top:4px;'><span class='glyphicon glyphicon-search'></span></div>");
 157             $(".dataTables_filter input").css("width","100%");
 158
 159             // resource info
 160             var sTable = this.table;
 161             $('table.dataTable').delegate('a.resource-info','click',function() {
 162                 var aPos = sTable.fnGetPosition( this.parentNode );
 163                 var aData = sTable.fnGetData( aPos[0] );
 164                 //console.log(aData);
 165
 166                 var network_hrn = aData[18];
 167                 var resourceData = {
 168                     'hostname' : strip(aData[2]),
 169                     'urn' : aData[6],
 170                     'type' : aData[3],
 171                     'status' : aData[10],
 172                     'testbed' : aData[4],
 173                     'facility' : aData[5],
 174                 };
 175
 176
 177                 //Greece: 37.6687092,22.2282404
 178                 if (network_hrn == 'omf.nitos') {
 179                     var logo = 'nitos';
 180                     var resourceLocation = {
 181                         'longitude' : '22.2282404',
 182                         'latitude' : '37.6687092',
 183                     };
 184                     var coordinates = resourceLocation['latitude']+','+resourceLocation['longitude'];
 185                 } else if (network_hrn == 'iotlab') {
 186                     var logo = network_hrn;
 187                     var s = resourceData['hostname'].split(".");
 188                     var n = s[0].split("-");
 189                     resourceData['type'] = 'node ( Hardware: <a target="_blank" href="https://www.iot-lab.info/hardware/'+n[0]+'/">'+n[0]+'</a> )';
 190                     var coordinates = resourceData['testbed'];
 191                 } else {
 192                     var logo = network_hrn;
 193                     var resourceLocation = {
 194                         'longitude' : aData[13],
 195                         'latitude' : aData[23],
 196                     };
 197                     var coordinates = resourceLocation['latitude']+','+resourceLocation['longitude'];
 198                 }
 199
 200                 var modal = $('#resource-info-modal');
 201                 modal.find('.modal-title').text(resourceData['testbed'] + ': ' +resourceData['hostname']);
 202                 table = modal.find('.modal-resource-info');
 203                 table.html('<tr><td colspan="2"><img class="img-responsive" src="/static/img/testbeds/'+logo+'.png" alt="'+resourceData['facility']+' - '+resourceData['testbed']+'" /></td></tr>');
 204                 for (var j in resourceData) {
 205                     table.append('<tr><td>' + j + '</td><td>' + resourceData[j] + '</td></tr>');
 206                 }
 207                 if (coordinates != '') {
 208                     table.append('<tr><td colspan="2"><img src="http://maps.google.com/maps/api/staticmap?center='+coordinates+'&zoom=6&size=400x400&sensor=false&markers=color:red%7C'+coordinates+'" style="width:400px; height:400px;" /></td></tr>');
 209                 }
 210                 modal.modal();
 211             });
 212
 213         }, // initialize_table
 214
 215         /**
 216          * @brief Determine index of key in the table columns
 217          * @param key
 218          * @param cols
 219          */
 220         getColIndex: function(key, cols) {
 221             var self = this;
 222             var tabIndex = $.map(cols, function(x, i) { if (self._get_map(x.sTitle) == key) return i; });
 223             return (tabIndex.length > 0) ? tabIndex[0] : -1;
 224         }, // getColIndex
 225
 226     // create a checkbox <input> tag
 227     // computes 'id' attribute from canonical_key
 228     // computes 'init_id' from init_key for initialization phase
 229     // no need to used convoluted ids with plugin-uuid or others, since
 230     // we search using table.$ which looks only in this table
 231         checkbox_html : function (record) {
 232             var result="";
 233             // Prefix id with plugin_uuid
 234             result += "<input";
 235             result += " class='querytable-checkbox'";
 236      // compute id from canonical_key
 237         var id = record[this.canonical_key]
 238      // compute init_id form init_key
 239         var init_id=record[this.init_key];
 240      // set id - for retrieving from an id, or for posting events upon user's clicks
 241         result += " id='"+record[this.canonical_key]+"'";
 242      // set init_id
 243         result += "init_id='" + init_id + "'";
 244      // wrap up
 245             result += " type='checkbox'";
 246             result += " autocomplete='off'";
 247             result += "></input>";
 248             return result;
 249         },
 250
 251
 252         new_record: function(record)
 253         {
 254             var self = this;
 255
 256             // this models a line in dataTables, each element in the line describes a cell
 257             line = new Array();
 258
 259             // go through table headers to get column names we want
 260             // in order (we have temporarily hack some adjustments in names)
 261             var cols = this._get_columns();
 262             var colnames = cols.map(function(x) {return self._get_map(x.sTitle)})
 263             var nb_col = cols.length;
 264             /* if we've requested checkboxes, then forget about the checkbox column for now */
 265             //if (this.options.checkboxes) nb_col -= 1;
 266             // catch up with the last column if checkboxes were requested
 267             if (this.options.checkboxes) {
 268                 // Use a key instead of hostname (hard coded...)
 269                 line.push(this.checkbox_html(record));
 270             }
 271             line.push('<span id="' + this.id_from_key('status', record[this.init_key]) + '"></span>'); // STATUS
 272
 273             /* fill in stuff depending on the column name */
 274             for (var j = 2; j < nb_col - 1; j++) { // nb_col includes status
 275                 if (typeof colnames[j] == 'undefined') {
 276                     line.push('...');
 277                 } else if (colnames[j] == 'hostname') {
 278                     if (record['type'] == 'resource,link')
 279                         //TODO: we need to add source/destination for links
 280                         line.push('');
 281                     else
 282                         //line.push(record['hostname']);
 283                         line.push('<a class="resource-info" data-network_hrn="'+record['network_hrn']+'">' + record['hostname'] + '</a>');
 284
 285                 } else if (colnames[j] == this.init_key && typeof(record) != 'undefined') {
 286                     obj = this.object
 287                     o = obj.split(':');
 288                     if(o.length>1){
 289                         obj = o[1];
 290                     }else{
 291                         obj = o[0];
 292                     }
 293                     /* XXX TODO: Remove this and have something consistant */
 294                     if(obj=='resource'){
 295                         //line.push('<a href="../'+obj+'/'+record['urn']+'"><span class="glyphicon glyphicon-search"></span></a> '+record[this.init_key]);
 296                     }else{
 297                         //line.push('<a href="../'+obj+'/'+record[this.init_key]+'"><span class="glyphicon glyphicon-search"></span></a> '+record[this.init_key]);
 298                     }
 299                     line.push(record[this.init_key]);
 300                 } else {
 301                     if (record[colnames[j]])
 302                         line.push(record[colnames[j]]);
 303                     else
 304                         line.push('');
 305                 }
 306             }
 307
 308             // adding an array in one call is *much* more efficient
 309             // this.table.fnAddData(line);
 310             return line;
 311         },
 312
 313         clear_table: function()
 314         {
 315             this.table.fnClearTable();
 316         },
 317
 318         redraw_table: function()
 319         {
 320             this.table.fnDraw();
 321         },
 322
 323         show_column: function(field)
 324         {
 325             var oSettings = this.table.fnSettings();
 326             var cols = oSettings.aoColumns;
 327             var index = this.getColIndex(field,cols);
 328             if (index != -1)
 329                 this.table.fnSetColumnVis(index, true);
 330         },
 331
 332         hide_column: function(field)
 333         {
 334             var oSettings = this.table.fnSettings();
 335             var cols = oSettings.aoColumns;
 336             var index = this.getColIndex(field,cols);
 337             if (index != -1)
 338                 this.table.fnSetColumnVis(index, false);
 339         },
 340
 341         set_checkbox_from_record_key: function (record_key, checked)
 342         {
 343             if (checked === undefined) checked = true;
 344
 345             // using table.$ to search inside elements that are not visible
 346             var element = this.table.$('[init_id="'+record_key+'"]');
 347             element.attr('checked',checked);
 348         },
 349
 350         // id relates to canonical_key
 351         set_checkbox_from_data: function (id, checked)
 352         {
 353             if (checked === undefined) checked = true;
 354
 355             // using table.$ to search inside elements that are not visible
 356             var element = this.table.$("[id='"+id+"']");
 357             element.attr('checked',checked);
 358         },
 359
 360         /**
 361          * Arguments
 362          *
 363          * key_value: the key from which we deduce the id
 364          * request: STATUS_OKAY, etc.
 365          * content: some HTML content
 366          */
 367         change_status: function(key_value, warnings)
 368         {
 369             var msg;
 370
 371             if ($.isEmptyObject(warnings)) {
 372                 var state = manifold.query_store.get_record_state(this.options.query_uuid, key_value, STATE_SET);
 373                 switch(state) {
 374                     case STATE_SET_IN:
 375                     case STATE_SET_IN_SUCCESS:
 376                     case STATE_SET_OUT_FAILURE:
 377                     case STATE_SET_IN_PENDING:
 378                         // Checkmark sign if no warning for an object in the set
 379                         msg = '&#10003;';
 380                         break;
 381                     default:
 382                         // Nothing is the object is not in the set
 383                         msg = '';
 384                         break;
 385                 }
 386             } else {
 387                 msg = '<ul class="nav nav-pills">';
 388                 msg += '<li class="dropdown">';
 389                 msg += '<a href="#" data-toggle="dropdown" class="dropdown-toggle nopadding"><b>&#9888</b></a>';
 390                 msg += '  <ul class="dropdown-menu dropdown-menu-right" id="menu1">';
 391                 $.each(warnings, function(i,warning) {
 392                     msg += '<li><a href="#">' + warning + '</a></li>';
 393                 });
 394                 msg += '  </ul>';
 395                 msg += '</li>';
 396                 msg += '</ul>';
 397             }
 398
 399             $(document.getElementById(this.id_from_key('status', key_value))).html(msg);
 400             $('[data-toggle="tooltip"]').tooltip({'placement': 'bottom'});
 401
 402         },
 403
 404         set_bgcolor: function(key_value, class_name)
 405         {
 406             var elt = $(document.getElementById(this.id_from_key(this.canonical_key, key_value)))
 407             if (class_name == QUERYTABLE_BGCOLOR_RESET)
 408                 elt.removeClass('added removed');
 409             else
 410                 elt.addClass((class_name == QUERYTABLE_BGCOLOR_ADDED ? 'added' : 'removed'));
 411         },
 412
 413         populate_table: function()
 414         {
 415             // Let's clear the table and only add lines that are visible
 416             var self = this;
 417             this.clear_table();
 418
 419             lines = Array();
 420             var record_keys = [];
 421             manifold.query_store.iter_records(this.options.query_uuid, function (record_key, record) {
 422                 lines.push(self.new_record(record));
 423                 record_keys.push(record_key);
 424             });
 425             this.table.fnAddData(lines);
 426             $.each(record_keys, function(i, record_key) {
 427                 var state = manifold.query_store.get_record_state(self.options.query_uuid, record_key, STATE_SET);
 428                 var warnings = manifold.query_store.get_record_state(self.options.query_uuid, record_key, STATE_WARNINGS);
 429                 switch(state) {
 430                     // XXX The row and checkbox still does not exists !!!!
 431                     case STATE_SET_IN:
 432                     case STATE_SET_IN_SUCCESS:
 433                     case STATE_SET_OUT_FAILURE:
 434                         self.set_checkbox_from_record_key(record_key, true);
 435                         break;
 436                     case STATE_SET_OUT:
 437                     case STATE_SET_OUT_SUCCESS:
 438                     case STATE_SET_IN_FAILURE:
 439                         //self.set_checkbox_from_record_key(record_key, false);
 440                         break;
 441                     case STATE_SET_IN_PENDING:
 442                         self.set_checkbox_from_record_key(record_key, true);
 443                         self.set_bgcolor(record_key, QUERYTABLE_BGCOLOR_ADDED);
 444                         break;
 445                     case STATE_SET_OUT_PENDING:
 446                         //self.set_checkbox_from_record_key(record_key, false);
 447                         self.set_bgcolor(record_key, QUERYTABLE_BGCOLOR_REMOVED);
 448                         break;
 449                 }
 450                 self.change_status(record_key, warnings); // XXX will retrieve status again
 451             });
 452         },
 453
 454         /*************************** QUERY HANDLER ****************************/
 455
 456         on_filter_added: function(filter)
 457         {
 458             this.redraw_table();
 459         },
 460
 461         on_filter_removed: function(filter)
 462         {
 463             this.redraw_table();
 464         },
 465
 466         on_filter_clear: function()
 467         {
 468             this.redraw_table();
 469         },
 470
 471         on_field_added: function(field)
 472         {
 473             this.show_column(field);
 474         },
 475
 476         on_field_removed: function(field)
 477         {
 478             this.hide_column(field);
 479         },
 480
 481         on_field_clear: function()
 482         {
 483             alert('QueryTable::clear_fields() not implemented');
 484         },
 485
 486         /*************************** RECORD HANDLER ***************************/
 487
 488         // Could be the default in parent
 489         on_query_in_progress: function()
 490         {
 491             this.spin();
 492         },
 493
 494         on_query_done: function()
 495         {
 496             this.populate_table();
 497             this.unspin();
 498         },
 499
 500         on_field_state_changed: function(data)
 501         {
 502             // XXX We could get this from data.value
 503             // var state = manifold.query_store.get_record_state(this.options.query_uuid, data.value, data.state);
 504
 505             switch(data.state) {
 506                 case STATE_SET:
 507                     switch(data.op) {
 508                         case STATE_SET_IN:
 509                         case STATE_SET_IN_SUCCESS:
 510                         case STATE_SET_OUT_FAILURE:
 511                             this.set_checkbox_from_data(data.value, true);
 512                             this.set_bgcolor(data.value, QUERYTABLE_BGCOLOR_RESET);
 513                             break;
 514                         case STATE_SET_OUT:
 515                         case STATE_SET_OUT_SUCCESS:
 516                         case STATE_SET_IN_FAILURE:
 517                             this.set_checkbox_from_data(data.value, false);
 518                             this.set_bgcolor(data.value, QUERYTABLE_BGCOLOR_RESET);
 519                             break;
 520                         case STATE_SET_IN_PENDING:
 521                             this.set_checkbox_from_data(data.key, true);
 522                             this.set_bgcolor(data.value, QUERYTABLE_BGCOLOR_ADDED);
 523                             break;
 524                         case STATE_SET_OUT_PENDING:
 525                             this.set_checkbox_from_data(data.key, false);
 526                             this.set_bgcolor(data.value, QUERYTABLE_BGCOLOR_REMOVED);
 527                             break;
 528                     }
 529                     break;
 530
 531                 case STATE_WARNINGS:
 532                     this.change_status(data.key, data.value);
 533                     break;
 534             }
 535         },
 536
 537         /************************** PRIVATE METHODS ***************************/
 538
 539         _get_columns: function()
 540         {
 541             return this.table.fnSettings().aoColumns;
 542             // XXX return $.map(table.fnSettings().aoColumns, function(x, i) { return QUERYTABLE_MAP[x]; });
 543         },
 544
 545         _get_map: function(column_title) {
 546             return (column_title in QUERYTABLE_MAP) ? QUERYTABLE_MAP[column_title] : column_title;
 547         },
 548         /**
 549          * @brief QueryTable filtering function, called for every line in the datatable.
 550          *
 551          * Return value:
 552          *   boolean determining whether the column is visible or not.
 553          */
 554         _querytable_filter: function(oSettings, aData, iDataIndex)
 555         {
 556             var self = this;
 557             var key_col, record_key_value;
 558
 559             /* Determine index of key in the table columns */
 560             key_col = $.map(oSettings.aoColumns, function(x, i) {if (self._get_map(x.sTitle) == self.canonical_key) return i;})[0];
 561
 562             /* Unknown key: no filtering */
 563             if (typeof(key_col) == 'undefined') {
 564                 console.log("Unknown key");
 565                 return true;
 566             }
 567
 568             record_key_value = unfold.get_value(aData[key_col]);
 569
 570             return manifold.query_store.get_record_state(this.options.query_uuid, record_key_value, STATE_VISIBLE);
 571         },
 572
 573         _querytable_draw_callback: function()
 574         {
 575             /*
 576              * Handle clicks on checkboxes: reassociate checkbox click every time
 577              * the table is redrawn
 578              */
 579             this.elts('querytable-checkbox').unbind('click').click(this, this._check_click);
 580
 581             if (!this.table)
 582                 return;
 583
 584             /* Remove pagination if we show only a few results */
 585             var wrapper = this.table; //.parent().parent().parent();
 586             var rowsPerPage = this.table.fnSettings()._iDisplayLength;
 587             var rowsToShow = this.table.fnSettings().fnRecordsDisplay();
 588             var minRowsPerPage = this.table.fnSettings().aLengthMenu[0];
 589
 590             if ( rowsToShow <= rowsPerPage || rowsPerPage == -1 ) {
 591                 $('.querytable_paginate', wrapper).css('visibility', 'hidden');
 592             } else {
 593                 $('.querytable_paginate', wrapper).css('visibility', 'visible');
 594             }
 595
 596             if ( rowsToShow <= minRowsPerPage ) {
 597                 $('.querytable_length', wrapper).css('visibility', 'hidden');
 598             } else {
 599                 $('.querytable_length', wrapper).css('visibility', 'visible');
 600             }
 601         },
 602
 603         _check_click: function(e)
 604         {
 605             var data;
 606             var self = e.data;
 607
 608             e.stopPropagation();
 609
 610             data = {
 611                 state: STATE_SET,
 612                 key  : null,
 613                 op   : this.checked ? STATE_SET_ADD : STATE_SET_REMOVE,
 614                 value: this.id
 615             };
 616             manifold.raise_event(self.options.query_uuid, FIELD_STATE_CHANGED, data);
 617             //return false; // prevent checkbox to be checked, waiting response from manifold plugin api
 618
 619         },
 620
 621         _selectAll: function()
 622         {
 623             // requires jQuery id
 624             var uuid=this.id.split("-");
 625             var oTable=$("#querytable-"+uuid[1]).dataTable();
 626             // Function available in QueryTable 1.9.x
 627             // Filter : displayed data only
 628             var filterData = oTable._('tr', {"filter":"applied"});
 629             /* TODO: WARNING if too many nodes selected, use filters to reduce nuber of nodes */
 630             if(filterData.length<=100){
 631                 $.each(filterData, function(index, obj) {
 632                     var last=$(obj).last();
 633                     var key_value=unfold.get_value(last[0]);
 634                     if(typeof($(last[0]).attr('checked'))=="undefined"){
 635                         $.publish('selected', 'add/'+key_value);
 636                     }
 637                 });
 638             }
 639         },
 640     });
 641
 642     $.plugin('QueryTable', QueryTable);
 643
 644   /* define the 'dom-checkbox' type for sorting in datatables
 645      http://datatables.net/examples/plug-ins/dom_sort.html
 646      using trial and error I found that the actual column number
 647      was in fact given as a third argument, and not second
 648      as the various online resources had it - go figure */
 649     $.fn.dataTableExt.afnSortData['dom-checkbox'] = function  ( oSettings, _, iColumn ) {
 650         return $.map( oSettings.oApi._fnGetTrNodes(oSettings), function (tr, i) {
 651             return result=$('td:eq('+iColumn+') input', tr).prop('checked') ? '1' : '0';
 652         });
 653     };
 654
 655
 656
 657 })(jQuery);
 658
 659 function strip(html)
 660 {
 661    var tmp = document.createElement("DIV");
 662    tmp.innerHTML = html;
 663    return tmp.textContent || tmp.innerText || "";
 664 }