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
  14     var QUERYTABLE_MAP = {
  15         'Facility': 'facility_name',
  16         'Testbed': 'testbed_name',
  17         'Resource name': 'hostname',
  18         'Type': 'type',
  19     };
  20
  21     var debug=false;
  22 //    debug=true
  23
  24     var QueryTable = Plugin.extend({
  25
  26         init: function(options, element) {
  27         this.classname="querytable";
  28             this._super(options, element);
  29
  30             /* Member variables */
  31             var query = manifold.query_store.find_analyzed_query(this.options.query_uuid);
  32             this.object = query.object; // XXX
  33
  34             /* Events */
  35             this.elmt().on('show', this, this.on_show);
  36             this.elmt().on('shown.bs.tab', this, this.on_show);
  37             this.elmt().on('resize', this, this.on_resize);
  38
  39             //// we need 2 different keys
  40             // * canonical_key is the primary key as derived from metadata (typically: urn)
  41             //   and is used to communicate about a given record with the other plugins
  42             // * init_key is a key that both kinds of records
  43             //   (i.e. records returned by both queries) must have (typically: hrn or hostname)
  44             //   in general query_all will return well populated records, but query
  45             //   returns records with only the fields displayed on startup
  46             var keys = manifold.metadata.get_key(this.object);
  47             this.canonical_key = (keys && keys.length == 1) ? keys[0] : undefined;
  48             //
  49             this.init_key = this.options.init_key;
  50             // have init_key default to canonical_key
  51             this.init_key = this.init_key || this.canonical_key;
  52
  53             /* sanity check */
  54             if ( ! this.init_key )
  55                 messages.warning ("QueryTable : cannot find init_key");
  56             if ( ! this.canonical_key )
  57                 messages.warning ("QueryTable : cannot find canonical_key");
  58             if (debug)
  59                 messages.debug("querytable: canonical_key="+this.canonical_key+" init_key="+this.init_key);
  60
  61             /* Setup query and record handlers */
  62             this.listen_query(options.query_uuid);
  63
  64             /* GUI setup and event binding */
  65             this.initialize_table();
  66         },
  67
  68         /* PLUGIN EVENTS */
  69
  70         on_show: function(e) {
  71         if (debug) messages.debug("querytable.on_show");
  72             var self = e.data;
  73             self.table.fnAdjustColumnSizing();
  74     },
  75
  76         on_resize: function(e) {
  77         if (debug) messages.debug("querytable.on_resize");
  78             var self = e.data;
  79             self.table.fnAdjustColumnSizing();
  80     },
  81
  82         /* GUI EVENTS */
  83
  84         /* GUI MANIPULATION */
  85
  86         initialize_table: function()
  87         {
  88             /* Transforms the table into DataTable, and keep a pointer to it */
  89             var self = this;
  90             var actual_options = {
  91                 // Customize the position of Datatables elements (length,filter,button,...)
  92                 // we use a fluid row on top and another on the bottom, making sure we take 12 grid elt's each time
  93                 //sDom: "<'row'<'col-xs-5'l><'col-xs-1'r><'col-xs-6'f>>t<'row'<'col-xs-5'i><'col-xs-7'p>>",
  94                 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>>",
  95         // XXX as of sept. 2013, I cannot locate a bootstrap3-friendly mode for now
  96         // hopefully this would come with dataTables v1.10 ?
  97         // in any case, search for 'sPaginationType' all over the code for more comments
  98                 sPaginationType: 'bootstrap',
  99                 // Handle the null values & the error : Datatables warning Requested unknown parameter
 100                 // http://datatables.net/forums/discussion/5331/datatables-warning-...-requested-unknown-parameter/p2
 101                 aoColumnDefs: [{sDefaultContent: '', aTargets: [ '_all' ]}],
 102                 // WARNING: this one causes tables in a 'tabs' that are not exposed at the time this is run to show up empty
 103                 // sScrollX: '100%',       /* Horizontal scrolling */
 104                 bProcessing: true,      /* Loading */
 105                 fnDrawCallback: function() { self._querytable_draw_callback.call(self); },
 106                 fnRowCallback: function( nRow, aData, iDisplayIndex, iDisplayIndexFull ) {
 107                     // This function is called on fnAddData to set the TR id. What about fnUpdate ?
 108
 109                     // Get the key from the raw data array aData
 110                     var key = self.canonical_key;
 111
 112                     // Get the index of the key in the columns
 113                     var cols = self._get_columns();
 114                     var index = self.getColIndex(key, cols);
 115                     if (index != -1) {
 116                         // The key is found in the table, set the TR id after the data
 117                         $(nRow).attr('id', self.id_from_key(key, aData[index]));
 118                     }
 119
 120                     // That's the usual return value
 121                     return nRow;
 122                 }
 123                 // XXX use $.proxy here !
 124             };
 125             // the intention here is that options.datatables_options as coming from the python object take precedence
 126         // xxx DISABLED by jordan: was causing errors in datatables.js
 127         // xxx turned back on by Thierry - this is the code that takes python-provided options into account
 128         // check your datatables_options tag instead
 129         // however, we have to accumulate in aoColumnDefs from here (above)
 130         // and from the python wrapper (checkboxes management, plus any user-provided aoColumnDefs)
 131         if ( 'aoColumnDefs' in this.options.datatables_options) {
 132         actual_options['aoColumnDefs']=this.options.datatables_options['aoColumnDefs'].concat(actual_options['aoColumnDefs']);
 133         delete this.options.datatables_options['aoColumnDefs'];
 134         }
 135         $.extend(actual_options, this.options.datatables_options );
 136             this.table = this.elmt('table').dataTable(actual_options);
 137
 138             /* Setup the SelectAll button in the dataTable header */
 139             /* xxx not sure this is still working */
 140             var oSelectAll = $('#datatableSelectAll-'+ this.options.plugin_uuid);
 141             oSelectAll.html("<span class='glyphicon glyphicon-ok' style='float:right;display:inline-block;'></span>Select All");
 142             oSelectAll.button();
 143             oSelectAll.css('font-size','11px');
 144             oSelectAll.css('float','right');
 145             oSelectAll.css('margin-right','15px');
 146             oSelectAll.css('margin-bottom','5px');
 147             oSelectAll.unbind('click');
 148             oSelectAll.click(this._selectAll);
 149
 150             /* Add a filtering function to the current table
 151              * Note: we use closure to get access to the 'options'
 152              */
 153             $.fn.dataTableExt.afnFiltering.push(function( oSettings, aData, iDataIndex ) {
 154                 /* No filtering if the table does not match */
 155                 if (oSettings.nTable.id != self.options.plugin_uuid + '__table')
 156                     return true;
 157                 return self._querytable_filter.call(self, oSettings, aData, iDataIndex);
 158             });
 159
 160             /* Processing hidden_columns */
 161             arr = [];
 162             arr = $.map(Object.keys(QUERYTABLE_MAP), function(x, i) { return QUERYTABLE_MAP[x]; });
 163             $.each(this.options.hidden_columns, function(i, field) {
 164                 is_inarray = $.inArray(field,arr);
 165                 if(is_inarray==-1){
 166                     self.hide_column(field);
 167                 }
 168             });
 169             $(".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>");
 170             $(".dataTables_filter input").css("width","100%");
 171
 172             // resource info
 173             var sTable = this.table;
 174             $('table.dataTable').delegate('a.resource-info','click',function() {
 175                 var aPos = sTable.fnGetPosition( this.parentNode );
 176                 var aData = sTable.fnGetData( aPos[0] );
 177                 //console.log(aData);
 178
 179                 var network_hrn = aData[18];
 180                 var resourceData = {
 181                     'hostname' : strip(aData[2]),
 182                     'urn' : aData[6],
 183                     'type' : aData[3],
 184                     'status' : aData[10],
 185                     'testbed' : aData[4],
 186                     'facility' : aData[5],
 187                 };
 188
 189
 190                 //Greece: 37.6687092,22.2282404
 191                 if (network_hrn == 'omf.nitos') {
 192                     var logo = 'nitos';
 193                     var resourceLocation = {
 194                         'longitude' : '22.2282404',
 195                         'latitude' : '37.6687092',
 196                     };
 197                     var coordinates = resourceLocation['latitude']+','+resourceLocation['longitude'];
 198                 } else if (network_hrn == 'iotlab') {
 199                     var logo = network_hrn;
 200                     var s = resourceData['hostname'].split(".");
 201                     var n = s[0].split("-");
 202                     resourceData['type'] = 'node ( Hardware: <a target="_blank" href="https://www.iot-lab.info/hardware/'+n[0]+'/">'+n[0]+'</a> )';
 203                     var coordinates = resourceData['testbed'];
 204                 } else {
 205                     var logo = network_hrn;
 206                     var resourceLocation = {
 207                         'longitude' : aData[13],
 208                         'latitude' : aData[23],
 209                     };
 210                     var coordinates = resourceLocation['latitude']+','+resourceLocation['longitude'];
 211                 }
 212
 213                 var modal = $('#resource-info-modal');
 214                 modal.find('.modal-title').text(resourceData['testbed'] + ': ' +resourceData['hostname']);
 215                 table = modal.find('.modal-resource-info');
 216                 table.html('<tr><td colspan="2"><img class="img-responsive" src="/static/img/testbeds/'+logo+'.png" alt="'+resourceData['facility']+' - '+resourceData['testbed']+'" /></td></tr>');
 217                 for (var j in resourceData) {
 218                     table.append('<tr><td>' + j + '</td><td>' + resourceData[j] + '</td></tr>');
 219                 }
 220                 if (coordinates != '') {
 221                     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>');
 222                 }
 223                 modal.modal();
 224             });
 225
 226         }, // initialize_table
 227
 228         /**
 229          * @brief Determine index of key in the table columns
 230          * @param key
 231          * @param cols
 232          */
 233         getColIndex: function(key, cols) {
 234             var self = this;
 235             var tabIndex = $.map(cols, function(x, i) { if (self._get_map(x.sTitle) == key) return i; });
 236             return (tabIndex.length > 0) ? tabIndex[0] : -1;
 237         }, // getColIndex
 238
 239     // create a checkbox <input> tag
 240     // computes 'id' attribute from canonical_key
 241     // computes 'init_id' from init_key for initialization phase
 242     // no need to used convoluted ids with plugin-uuid or others, since
 243     // we search using table.$ which looks only in this table
 244         checkbox_html : function (record) {
 245             var result="";
 246             // Prefix id with plugin_uuid
 247             result += "<input";
 248             result += " class='querytable-checkbox'";
 249      // compute id from canonical_key
 250         var id = record[this.canonical_key]
 251      // compute init_id form init_key
 252         var init_id=record[this.init_key];
 253      // set id - for retrieving from an id, or for posting events upon user's clicks
 254         result += " id='"+record[this.canonical_key]+"'";
 255      // set init_id
 256         result += "init_id='" + init_id + "'";
 257      // wrap up
 258             result += " type='checkbox'";
 259             result += " autocomplete='off'";
 260             result += "></input>";
 261             return result;
 262         },
 263
 264
 265         new_record: function(record)
 266         {
 267             var self = this;
 268
 269             // this models a line in dataTables, each element in the line describes a cell
 270             line = new Array();
 271
 272             // go through table headers to get column names we want
 273             // in order (we have temporarily hack some adjustments in names)
 274             var cols = this._get_columns();
 275             var colnames = cols.map(function(x) {return self._get_map(x.sTitle)})
 276             var nb_col = cols.length;
 277             /* if we've requested checkboxes, then forget about the checkbox column for now */
 278             //if (this.options.checkboxes) nb_col -= 1;
 279             // catch up with the last column if checkboxes were requested
 280             if (this.options.checkboxes) {
 281                 // Use a key instead of hostname (hard coded...)
 282                 line.push(this.checkbox_html(record));
 283             }
 284             line.push('<span id="' + this.id_from_key('status', record[this.init_key]) + '"></span>'); // STATUS
 285
 286             /* fill in stuff depending on the column name */
 287             for (var j = 2; j < nb_col - 1; j++) { // nb_col includes status
 288                 if (typeof colnames[j] == 'undefined') {
 289                     line.push('...');
 290                 } else if (colnames[j] == 'hostname') {
 291                     if (record['type'] == 'resource,link')
 292                         //TODO: we need to add source/destination for links
 293                         line.push('');
 294                     else
 295                         //line.push(record['hostname']);
 296                         line.push('<a class="resource-info" data-network_hrn="'+record['network_hrn']+'">' + record['hostname'] + '</a>');
 297
 298                 } else if (colnames[j] == this.init_key && typeof(record) != 'undefined') {
 299                     obj = this.object
 300                     o = obj.split(':');
 301                     if(o.length>1){
 302                         obj = o[1];
 303                     }else{
 304                         obj = o[0];
 305                     }
 306                     /* XXX TODO: Remove this and have something consistant */
 307                     if(obj=='resource'){
 308                         //line.push('<a href="../'+obj+'/'+record['urn']+'"><span class="glyphicon glyphicon-search"></span></a> '+record[this.init_key]);
 309                     }else{
 310                         //line.push('<a href="../'+obj+'/'+record[this.init_key]+'"><span class="glyphicon glyphicon-search"></span></a> '+record[this.init_key]);
 311                     }
 312                     line.push(record[this.init_key]);
 313                 } else {
 314                     if (record[colnames[j]])
 315                         line.push(record[colnames[j]]);
 316                     else
 317                         line.push('');
 318                 }
 319             }
 320
 321             // adding an array in one call is *much* more efficient
 322             // this.table.fnAddData(line);
 323             return line;
 324         },
 325
 326         clear_table: function()
 327         {
 328             this.table.fnClearTable();
 329         },
 330
 331         redraw_table: function()
 332         {
 333             this.table.fnDraw();
 334         },
 335
 336         show_column: function(field)
 337         {
 338             var oSettings = this.table.fnSettings();
 339             var cols = oSettings.aoColumns;
 340             var index = this.getColIndex(field,cols);
 341             if (index != -1)
 342                 this.table.fnSetColumnVis(index, true);
 343         },
 344
 345         hide_column: function(field)
 346         {
 347             var oSettings = this.table.fnSettings();
 348             var cols = oSettings.aoColumns;
 349             var index = this.getColIndex(field,cols);
 350             if (index != -1)
 351                 this.table.fnSetColumnVis(index, false);
 352         },
 353
 354         set_checkbox_from_record_key: function (record_key, checked)
 355         {
 356             if (checked === undefined) checked = true;
 357
 358             // using table.$ to search inside elements that are not visible
 359             var element = this.table.$('[init_id="'+record_key+'"]');
 360             element.attr('checked',checked);
 361         },
 362
 363         // id relates to canonical_key
 364         set_checkbox_from_data: function (id, checked)
 365         {
 366             if (checked === undefined) checked = true;
 367
 368             // using table.$ to search inside elements that are not visible
 369             var element = this.table.$("[id='"+id+"']");
 370             element.attr('checked',checked);
 371         },
 372
 373         /**
 374          * Arguments
 375          *
 376          * key_value: the key from which we deduce the id
 377          * request: STATUS_OKAY, etc.
 378          * content: some HTML content
 379          */
 380         change_status: function(key_value, warnings)
 381         {
 382             var msg;
 383
 384             if ($.isEmptyObject(warnings)) {
 385                 var state = manifold.query_store.get_record_state(this.options.query_uuid, key_value, STATE_SET);
 386                 switch(state) {
 387                     case STATE_SET_IN:
 388                     case STATE_SET_IN_SUCCESS:
 389                     case STATE_SET_OUT_FAILURE:
 390                     case STATE_SET_IN_PENDING:
 391                         // Checkmark sign if no warning for an object in the set
 392                         msg = '&#10003;';
 393                         break;
 394                     default:
 395                         // Nothing is the object is not in the set
 396                         msg = '';
 397                         break;
 398                 }
 399             } else {
 400                 msg = '<ul class="nav nav-pills">';
 401                 msg += '<li class="dropdown">';
 402                 msg += '<a href="#" data-toggle="dropdown" class="dropdown-toggle nopadding"><b>&#9888</b></a>';
 403                 msg += '  <ul class="dropdown-menu dropdown-menu-right" id="menu1">';
 404                 $.each(warnings, function(i,warning) {
 405                     msg += '<li><a href="#">' + warning + '</a></li>';
 406                 });
 407                 msg += '  </ul>';
 408                 msg += '</li>';
 409                 msg += '</ul>';
 410             }
 411
 412             $(document.getElementById(this.id_from_key('status', key_value))).html(msg);
 413             $('[data-toggle="tooltip"]').tooltip({'placement': 'bottom'});
 414
 415         },
 416
 417         set_bgcolor: function(key_value, class_name)
 418         {
 419             var elt = $(document.getElementById(this.id_from_key(this.canonical_key, key_value)))
 420             if (class_name == QUERYTABLE_BGCOLOR_RESET)
 421                 elt.removeClass('added removed');
 422             else
 423                 elt.addClass((class_name == QUERYTABLE_BGCOLOR_ADDED ? 'added' : 'removed'));
 424         },
 425
 426         populate_table: function()
 427         {
 428             // Let's clear the table and only add lines that are visible
 429             var self = this;
 430             this.clear_table();
 431
 432             lines = Array();
 433             var record_keys = [];
 434             manifold.query_store.iter_records(this.options.query_uuid, function (record_key, record) {
 435                 lines.push(self.new_record(record));
 436                 record_keys.push(record_key);
 437             });
 438             this.table.fnAddData(lines);
 439             $.each(record_keys, function(i, record_key) {
 440                 var state = manifold.query_store.get_record_state(self.options.query_uuid, record_key, STATE_SET);
 441                 var warnings = manifold.query_store.get_record_state(self.options.query_uuid, record_key, STATE_WARNINGS);
 442                 switch(state) {
 443                     // XXX The row and checkbox still does not exists !!!!
 444                     case STATE_SET_IN:
 445                     case STATE_SET_IN_SUCCESS:
 446                     case STATE_SET_OUT_FAILURE:
 447                         self.set_checkbox_from_record_key(record_key, true);
 448                         break;
 449                     case STATE_SET_OUT:
 450                     case STATE_SET_OUT_SUCCESS:
 451                     case STATE_SET_IN_FAILURE:
 452                         //self.set_checkbox_from_record_key(record_key, false);
 453                         break;
 454                     case STATE_SET_IN_PENDING:
 455                         self.set_checkbox_from_record_key(record_key, true);
 456                         self.set_bgcolor(record_key, QUERYTABLE_BGCOLOR_ADDED);
 457                         break;
 458                     case STATE_SET_OUT_PENDING:
 459                         //self.set_checkbox_from_record_key(record_key, false);
 460                         self.set_bgcolor(record_key, QUERYTABLE_BGCOLOR_REMOVED);
 461                         break;
 462                 }
 463                 self.change_status(record_key, warnings); // XXX will retrieve status again
 464             });
 465         },
 466
 467         /*************************** QUERY HANDLER ****************************/
 468
 469         on_filter_added: function(filter)
 470         {
 471             this.redraw_table();
 472         },
 473
 474         on_filter_removed: function(filter)
 475         {
 476             this.redraw_table();
 477         },
 478
 479         on_filter_clear: function()
 480         {
 481             this.redraw_table();
 482         },
 483
 484         on_field_added: function(field)
 485         {
 486             this.show_column(field);
 487         },
 488
 489         on_field_removed: function(field)
 490         {
 491             this.hide_column(field);
 492         },
 493
 494         on_field_clear: function()
 495         {
 496             alert('QueryTable::clear_fields() not implemented');
 497         },
 498
 499         /*************************** RECORD HANDLER ***************************/
 500
 501         // Could be the default in parent
 502         on_query_in_progress: function()
 503         {
 504             this.spin();
 505         },
 506
 507         on_query_done: function()
 508         {
 509             this.populate_table();
 510             this.unspin();
 511         },
 512
 513         on_field_state_changed: function(data)
 514         {
 515             // XXX We could get this from data.value
 516             // var state = manifold.query_store.get_record_state(this.options.query_uuid, data.value, data.state);
 517
 518             switch(data.state) {
 519                 case STATE_SET:
 520                     switch(data.op) {
 521                         case STATE_SET_IN:
 522                         case STATE_SET_IN_SUCCESS:
 523                         case STATE_SET_OUT_FAILURE:
 524                             this.set_checkbox_from_data(data.value, true);
 525                             this.set_bgcolor(data.value, QUERYTABLE_BGCOLOR_RESET);
 526                             break;
 527                         case STATE_SET_OUT:
 528                         case STATE_SET_OUT_SUCCESS:
 529                         case STATE_SET_IN_FAILURE:
 530                             this.set_checkbox_from_data(data.value, false);
 531                             this.set_bgcolor(data.value, QUERYTABLE_BGCOLOR_RESET);
 532                             break;
 533                         case STATE_SET_IN_PENDING:
 534                             this.set_checkbox_from_data(data.key, true);
 535                             this.set_bgcolor(data.value, QUERYTABLE_BGCOLOR_ADDED);
 536                             break;
 537                         case STATE_SET_OUT_PENDING:
 538                             this.set_checkbox_from_data(data.key, false);
 539                             this.set_bgcolor(data.value, QUERYTABLE_BGCOLOR_REMOVED);
 540                             break;
 541                     }
 542                     break;
 543
 544                 case STATE_WARNINGS:
 545                     this.change_status(data.key, data.value);
 546                     break;
 547             }
 548         },
 549
 550         /************************** PRIVATE METHODS ***************************/
 551
 552         _get_columns: function()
 553         {
 554             return this.table.fnSettings().aoColumns;
 555             // XXX return $.map(table.fnSettings().aoColumns, function(x, i) { return QUERYTABLE_MAP[x]; });
 556         },
 557
 558         _get_map: function(column_title) {
 559             return (column_title in QUERYTABLE_MAP) ? QUERYTABLE_MAP[column_title] : column_title;
 560         },
 561         /**
 562          * @brief QueryTable filtering function, called for every line in the datatable.
 563          *
 564          * Return value:
 565          *   boolean determining whether the column is visible or not.
 566          */
 567         _querytable_filter: function(oSettings, aData, iDataIndex)
 568         {
 569             var self = this;
 570             var key_col, record_key_value;
 571
 572             /* Determine index of key in the table columns */
 573             key_col = $.map(oSettings.aoColumns, function(x, i) {if (self._get_map(x.sTitle) == self.canonical_key) return i;})[0];
 574
 575             /* Unknown key: no filtering */
 576             if (typeof(key_col) == 'undefined') {
 577                 console.log("Unknown key");
 578                 return true;
 579             }
 580
 581             record_key_value = unfold.get_value(aData[key_col]);
 582
 583             return manifold.query_store.get_record_state(this.options.query_uuid, record_key_value, STATE_VISIBLE);
 584         },
 585
 586         _querytable_draw_callback: function()
 587         {
 588             /*
 589              * Handle clicks on checkboxes: reassociate checkbox click every time
 590              * the table is redrawn
 591              */
 592             this.elts('querytable-checkbox').unbind('click').click(this, this._check_click);
 593
 594             if (!this.table)
 595                 return;
 596
 597             /* Remove pagination if we show only a few results */
 598             var wrapper = this.table; //.parent().parent().parent();
 599             var rowsPerPage = this.table.fnSettings()._iDisplayLength;
 600             var rowsToShow = this.table.fnSettings().fnRecordsDisplay();
 601             var minRowsPerPage = this.table.fnSettings().aLengthMenu[0];
 602
 603             if ( rowsToShow <= rowsPerPage || rowsPerPage == -1 ) {
 604                 $('.querytable_paginate', wrapper).css('visibility', 'hidden');
 605             } else {
 606                 $('.querytable_paginate', wrapper).css('visibility', 'visible');
 607             }
 608
 609             if ( rowsToShow <= minRowsPerPage ) {
 610                 $('.querytable_length', wrapper).css('visibility', 'hidden');
 611             } else {
 612                 $('.querytable_length', wrapper).css('visibility', 'visible');
 613             }
 614         },
 615
 616         _check_click: function(e)
 617         {
 618             var data;
 619             var self = e.data;
 620
 621             e.stopPropagation();
 622
 623             data = {
 624                 state: STATE_SET,
 625                 key  : null,
 626                 op   : this.checked ? STATE_SET_ADD : STATE_SET_REMOVE,
 627                 value: this.id
 628             };
 629             manifold.raise_event(self.options.query_uuid, FIELD_STATE_CHANGED, data);
 630             //return false; // prevent checkbox to be checked, waiting response from manifold plugin api
 631
 632         },
 633
 634         _selectAll: function()
 635         {
 636             // requires jQuery id
 637             var uuid=this.id.split("-");
 638             var oTable=$("#querytable-"+uuid[1]).dataTable();
 639             // Function available in QueryTable 1.9.x
 640             // Filter : displayed data only
 641             var filterData = oTable._('tr', {"filter":"applied"});
 642             /* TODO: WARNING if too many nodes selected, use filters to reduce nuber of nodes */
 643             if(filterData.length<=100){
 644                 $.each(filterData, function(index, obj) {
 645                     var last=$(obj).last();
 646                     var key_value=unfold.get_value(last[0]);
 647                     if(typeof($(last[0]).attr('checked'))=="undefined"){
 648                         $.publish('selected', 'add/'+key_value);
 649                     }
 650                 });
 651             }
 652         },
 653     });
 654
 655     $.plugin('QueryTable', QueryTable);
 656
 657   /* define the 'dom-checkbox' type for sorting in datatables
 658      http://datatables.net/examples/plug-ins/dom_sort.html
 659      using trial and error I found that the actual column number
 660      was in fact given as a third argument, and not second
 661      as the various online resources had it - go figure */
 662     $.fn.dataTableExt.afnSortData['dom-checkbox'] = function  ( oSettings, _, iColumn ) {
 663         return $.map( oSettings.oApi._fnGetTrNodes(oSettings), function (tr, i) {
 664             return result=$('td:eq('+iColumn+') input', tr).prop('checked') ? '1' : '0';
 665         });
 666     };
 667
 668
 669
 670 })(jQuery);
 671
 672 function strip(html)
 673 {
 674    var tmp = document.createElement("DIV");
 675    tmp.innerHTML = html;
 676    return tmp.textContent || tmp.innerText || "";
 677 }