addons/web_graph/static/src/js/graph_widget.js

   1
   2 /* jshint undef: false  */
   3
   4 (function () {
   5 'use strict';
   6 var QWeb = openerp.web.qweb;
   7 var _lt = openerp.web._lt;
   8 var _t = openerp.web._t;
   9
  10 nv.dev = false;  // sets nvd3 library in production mode
  11
  12 openerp.web_graph.Graph = openerp.web.Widget.extend({
  13     template: 'GraphWidget',
  14
  15     // ----------------------------------------------------------------------
  16     // Init stuff
  17     // ----------------------------------------------------------------------
  18     init: function(parent, model,  domain, options) {
  19         this._super(parent);
  20         this.model = model;
  21         this.domain = domain;
  22         this.mode = options.mode || 'pivot';  // pivot, bar, pie, line
  23         this.visible_ui = options.visible_ui || true;
  24         this.bar_ui = options.bar_ui || 'group';
  25         this.graph_view = options.graph_view || null;
  26         this.pivot_options = options;
  27         this.title = options.title || 'Data';
  28         this.$buttons = options.$buttons;
  29     },
  30
  31     start: function() {
  32         var self = this;
  33         this.table = $('<table>');
  34         this.$('.graph_main_content').append(this.table);
  35
  36         this.$buttons.find('.oe-pivot-mode').click(function () {
  37             self.set_mode.bind(self)('pivot');
  38         });
  39         this.$measure_list = this.$buttons.find('.oe-measure-list');
  40
  41         this.$buttons.find('.oe-bar-mode').click(function () {
  42             self.set_mode.bind(self)('bar');
  43         });
  44         this.$buttons.find('.oe-line-mode').click(function () {
  45             self.set_mode.bind(self)('line');
  46         });
  47         this.$buttons.find('.oe-pie-mode').click(function () {
  48             self.set_mode.bind(self)('pie');
  49         });
  50         this.$buttons.find('.fa-expand').click(this.swap_axis.bind(this));
  51         this.$buttons.find('.fa-arrows-alt').click(function () {
  52             self.pivot.expand_all().then(self.proxy('display_data'));
  53         });
  54         this.$buttons.find('.fa-download').click(this.export_xls.bind(this));
  55
  56         var indexes = {'pivot': 0, 'bar': 1, 'line': 2, 'chart': 3};
  57         this.$('.graph_mode_selection label').eq(indexes[this.mode]).addClass('selected');
  58
  59         if (this.mode !== 'pivot') {
  60             this.$('.graph_heatmap label').addClass('disabled');
  61             this.$('.graph_main_content').addClass('graph_chart_mode');
  62         } else {
  63             this.$('.graph_main_content').addClass('graph_pivot_mode');
  64         }
  65         // get search view
  66         var parent = this.getParent();
  67         while (!(parent instanceof openerp.web.ViewManager)) {
  68             parent = parent.getParent();
  69         }
  70         this.search_view = parent.searchview;
  71
  72         openerp.session.rpc('/web_graph/check_xlwt').then(function (result) {
  73             self.$('.graph_options_selection label').last().toggle(result);
  74         });
  75
  76         this.$buttons.find('button').tooltip();
  77
  78         return this.model.call('fields_get', []).then(function (f) {
  79             self.fields = f;
  80             self.fields.__count = {field:'__count', type: 'integer', string:_t('Count')};
  81             self.groupby_fields = self.get_groupby_fields();
  82             self.measure_list = self.get_measures();
  83             self.add_measures_to_options();
  84             self.pivot_options.row_groupby = self.create_field_values(self.pivot_options.row_groupby || []);
  85             self.pivot_options.col_groupby = self.create_field_values(self.pivot_options.col_groupby || []);
  86             self.pivot_options.measures = self.create_field_values(self.pivot_options.measures || [{field:'__count', type: 'integer', string:'Count'}]);
  87             self.pivot = new openerp.web_graph.PivotTable(self.model, self.domain, self.fields, self.pivot_options);
  88             self.pivot.update_data().then(function () {
  89                 self.display_data();
  90                 if (self.graph_view) {
  91                     self.graph_view.register_groupby(self.pivot.rows.groupby, self.pivot.cols.groupby);
  92                 }
  93             });
  94             openerp.web.bus.on('click', self, function (event) {
  95                 if (self.dropdown) {
  96                     self.$row_clicked = $(event.target).closest('tr');
  97                     self.dropdown.remove();
  98                     self.dropdown = null;
  99                 }
 100             });
 101             self.put_measure_checkmarks();
 102         });
 103     },
 104
 105     get_groupby_fields: function () {
 106         var search_fields = this.get_search_fields(),
 107             search_field_names = _.pluck(search_fields, 'field'),
 108             other_fields = [],
 109             groupable_types = ['many2one', 'char', 'boolean', 'selection', 'date', 'datetime'];
 110
 111         _.each(this.fields, function (val, key) {
 112             if (!_.contains(search_field_names, key) &&
 113                 _.contains(groupable_types, val.type) &&
 114                 val.store === true) {
 115                 other_fields.push({
 116                     field: key,
 117                     string: val.string,
 118                 });
 119             }
 120         });
 121         return search_fields.concat(other_fields);
 122     },
 123
 124     // this method gets the fields that appear in the search view, under the
 125     // 'Groupby' heading
 126     get_search_fields: function () {
 127         // this method is disabled for now.  This requires extensive changes because the
 128         // search view works quite differently:  But the graph view is going to be split
 129         // soon in pivot view and graph view.  The pivot view will then properly handle
 130         // groupbys.
 131         return [];
 132         var self = this;
 133
 134         var groupbygroups = _(this.search_view.drawer.inputs).select(function (g) {
 135             return g instanceof openerp.web.search.GroupbyGroup;
 136         });
 137
 138         var filters = _.flatten(_.pluck(groupbygroups, 'filters'), true),
 139             groupbys = _.flatten(_.map(filters, function (filter) {
 140                 var groupby = py.eval(filter.attrs.context).group_by;
 141                 if (!(groupby instanceof Array)) { groupby = [groupby]; }
 142                 return _.map(groupby, function(g) {
 143                     return {field: g, filter: filter};
 144                 });
 145             }));
 146
 147         return _.uniq(_.map(groupbys, function (groupby) {
 148             var field = groupby.field,
 149                 filter = groupby.filter,
 150                 raw_field = field.split(':')[0],
 151                 string = (field === raw_field) ? filter.attrs.string : self.fields[raw_field].string;
 152
 153             filter = (field === raw_field) ? filter : undefined;
 154
 155             return { field: raw_field, string: string, filter: filter };
 156         }), false, function (filter) {return filter.field;});
 157     },
 158
 159     // Extracts the integer/float fields which are not 'id'
 160     get_measures: function() {
 161         return _.compact(_.map(this.fields, function (f, id) {
 162             if (((f.type === 'integer') || (f.type === 'float')) &&
 163                 (id !== 'id') &&
 164                 (f.store !== false)) {
 165                 return {field:id, type: f.type, string: f.string};
 166             }
 167         }));
 168     },
 169
 170     add_measures_to_options: function() {
 171         this.$measure_list.append(
 172         _.map(this.measure_list, function (measure) {
 173             return $('<li>').append($('<a>').attr('data-choice', measure.field)
 174                                      .attr('href', '#')
 175                                      .text(measure.string));
 176         }));
 177         this.$measure_list.find('li').click(this.measure_selection.bind(this));
 178     },
 179
 180     // ----------------------------------------------------------------------
 181     // Configuration methods
 182     // ----------------------------------------------------------------------
 183     set: function (domain, row_groupby, col_groupby, measures_groupby) {
 184         if (!this.pivot) {
 185             this.pivot_options.domain = domain;
 186             this.pivot_options.row_groupby = row_groupby;
 187             this.pivot_options.col_groupby = col_groupby;
 188             this.pivot_options.measures_groupby = measures_groupby;
 189             return;
 190         }
 191         var row_gbs = this.create_field_values(row_groupby),
 192             col_gbs = this.create_field_values(col_groupby),
 193             measures_gbs = this.create_field_values(measures_groupby),
 194             dom_changed = !_.isEqual(this.pivot.domain, domain),
 195             row_gb_changed = !_.isEqual(row_gbs, this.pivot.rows.groupby),
 196             col_gb_changed = !_.isEqual(col_gbs, this.pivot.cols.groupby),
 197             measures_gb_changed = !_.isEqual(measures_gbs, this.pivot.measures),
 198             row_reduced = is_strict_beginning_of(row_gbs, this.pivot.rows.groupby),
 199             col_reduced = is_strict_beginning_of(col_gbs, this.pivot.cols.groupby),
 200             measures_reduced = is_strict_beginning_of(measures_gbs, this.pivot.measures);
 201
 202         if (!dom_changed && row_reduced && !col_gb_changed && !measures_gb_changed) {
 203             this.pivot.fold_with_depth(this.pivot.rows, row_gbs.length);
 204             this.display_data();
 205             return;
 206         }
 207         if (!dom_changed && col_reduced && !row_gb_changed && !measures_gb_changed) {
 208             this.pivot.fold_with_depth(this.pivot.cols, col_gbs.length);
 209             this.display_data();
 210             return;
 211         }
 212
 213         if (!dom_changed && col_reduced && row_reduced && !measures_gb_changed) {
 214             this.pivot.fold_with_depth(this.pivot.rows, row_gbs.length);
 215             this.pivot.fold_with_depth(this.pivot.cols, col_gbs.length);
 216             this.display_data();
 217             return;
 218         }
 219
 220         if (dom_changed || row_gb_changed || col_gb_changed || measures_gb_changed) {
 221             this.pivot.set(domain, row_gbs, col_gbs, measures_gbs).then(this.proxy('display_data'));
 222         }
 223
 224         if (measures_gb_changed) {
 225             this.put_measure_checkmarks();
 226         }
 227     },
 228
 229     set_mode: function (mode) {
 230         this.mode = mode;
 231
 232         if (mode === 'pivot') {
 233             this.$('.graph_heatmap label').removeClass('disabled');
 234             this.$('.graph_main_content').removeClass('graph_chart_mode').addClass('graph_pivot_mode');
 235         } else {
 236             this.$('.graph_heatmap label').addClass('disabled');
 237             this.$('.graph_main_content').removeClass('graph_pivot_mode').addClass('graph_chart_mode');
 238         }
 239         this.display_data();
 240     },
 241
 242     create_field_value: function (f) {
 243         var field = (_.contains(f, ':')) ? f.split(':')[0] : f,
 244             groupby_field = _.findWhere(this.groupby_fields, {field:field}),
 245             string = groupby_field ? groupby_field.string : this.fields[field].string,
 246             result =  {field: f, string: string, type: this.fields[field].type };
 247
 248         if (groupby_field) {
 249             result.filter = groupby_field.filter;
 250         }
 251
 252         return result;
 253     },
 254
 255     create_field_values: function (field_ids) {
 256         return _.map(field_ids, this.proxy('create_field_value'));
 257     },
 258
 259
 260     get_col_groupbys: function () {
 261         return _.pluck(this.pivot.cols.groupby, 'field');
 262     },
 263
 264     get_current_measures: function () {
 265         return _.pluck(this.pivot.measures, 'field');
 266     },
 267
 268     // ----------------------------------------------------------------------
 269     // UI code
 270     // ----------------------------------------------------------------------
 271     events: {
 272         'click .graph_mode_selection label' : 'mode_selection',
 273         'click .graph_measure_selection li' : 'measure_selection',
 274         'click .graph_options_selection label' : 'option_selection',
 275         'click .graph_heatmap label' : 'heatmap_mode_selection',
 276         'click .web_graph_click' : 'header_cell_clicked',
 277         'click a.field-selection' : 'field_selection',
 278     },
 279
 280     mode_selection: function (event) {
 281         event.preventDefault();
 282         var mode = event.currentTarget.getAttribute('data-mode');
 283         this.set_mode(mode);
 284     },
 285
 286     measure_selection: function (event) {
 287         event.preventDefault();
 288         event.stopPropagation();
 289         var measure_field = event.target.getAttribute('data-choice');
 290         var measure = {
 291             field: measure_field,
 292             type: this.fields[measure_field].type,
 293             string: this.fields[measure_field].string
 294         };
 295
 296         this.pivot.toggle_measure(measure).then(this.proxy('display_data'));
 297         this.put_measure_checkmarks();
 298     },
 299
 300     put_measure_checkmarks: function () {
 301         var self = this,
 302             measures_li = this.$measure_list.find('li');
 303         measures_li.removeClass('selected');
 304         _.each(this.measure_list, function (measure, index) {
 305             if (_.findWhere(self.pivot.measures, measure)) {
 306                 measures_li.eq(index).addClass('selected');
 307             }
 308         });
 309
 310     },
 311
 312     option_selection: function (event) {
 313         event.preventDefault();
 314         switch (event.currentTarget.getAttribute('data-choice')) {
 315             case 'swap_axis':
 316                 this.swap_axis();
 317                 break;
 318             case 'expand_all':
 319                 this.pivot.expand_all().then(this.proxy('display_data'));
 320                 break;
 321             case 'update_values':
 322                 this.pivot.update_data().then(this.proxy('display_data'));
 323                 break;
 324             case 'export_data':
 325                 this.export_xls();
 326                 break;
 327         }
 328     },
 329
 330     header_cell_clicked: function (event) {
 331         event.preventDefault();
 332         event.stopPropagation();
 333         var id = event.target.getAttribute('data-id'),
 334             header = this.pivot.get_header(id),
 335             self = this;
 336
 337         if (header.expanded) {
 338             if (header.root === this.pivot.rows) {
 339                 this.fold_row(header, event);
 340             } else {
 341                 this.fold_col(header);
 342             }
 343             return;
 344         }
 345         if (header.path.length < header.root.groupby.length) {
 346             this.$row_clicked = $(event.target).closest('tr');
 347             this.expand(id);
 348             return;
 349         }
 350         if (!this.groupby_fields.length) {
 351             return;
 352         }
 353
 354         var fields = _.map(this.groupby_fields, function (field) {
 355                 return {id: field.field, value: field.string, type:self.fields[field.field.split(':')[0]].type};
 356         });
 357         if (this.dropdown) {
 358             this.dropdown.remove();
 359         }
 360         this.dropdown = $(QWeb.render('field_selection', {fields:fields, header_id:id}));
 361         $(event.target).after(this.dropdown);
 362         this.dropdown.css({
 363             position:'absolute',
 364             left:event.originalEvent.layerX,
 365         });
 366         this.$('.field-selection').next('.dropdown-menu').first().toggle();
 367     },
 368
 369     field_selection: function (event) {
 370         var id = event.target.getAttribute('data-id'),
 371             field_id = event.target.getAttribute('data-field-id'),
 372             interval,
 373             groupby = this.create_field_value(field_id);
 374         event.preventDefault();
 375         if (this.fields[field_id].type === 'date' || this.fields[field_id].type === 'datetime') {
 376             interval = event.target.getAttribute('data-interval');
 377             groupby.field =  groupby.field + ':' + interval;
 378         }
 379         this.expand(id, groupby);
 380     },
 381
 382     // ----------------------------------------------------------------------
 383     // Pivot Table integration
 384     // ----------------------------------------------------------------------
 385     expand: function (header_id, groupby) {
 386         var self = this,
 387             header = this.pivot.get_header(header_id),
 388             update_groupby = !!groupby;
 389
 390         groupby = groupby || header.root.groupby[header.path.length];
 391
 392         this.pivot.expand(header_id, groupby).then(function () {
 393             if (header.root === self.pivot.rows) {
 394                 // expanding rows can be done by only inserting in the dom
 395                 // console.log(event.target);
 396                 var rows = self.build_rows(header.children);
 397                 var doc_fragment = $(document.createDocumentFragment());
 398                 rows.map(function (row) {
 399                     doc_fragment.append(self.draw_row(row, 0));
 400                 });
 401                 self.$row_clicked.after(doc_fragment);
 402             } else {
 403                 // expanding cols will redraw the full table
 404                 self.display_data();
 405             }
 406             if (update_groupby && self.graph_view) {
 407                 self.graph_view.register_groupby(self.pivot.rows.groupby, self.pivot.cols.groupby);
 408             }
 409         });
 410
 411     },
 412
 413     fold_row: function (header, event) {
 414         var rows_before = this.pivot.rows.headers.length,
 415             update_groupby = this.pivot.fold(header),
 416             rows_after = this.pivot.rows.headers.length,
 417             rows_removed = rows_before - rows_after;
 418
 419         if (rows_after === 1) {
 420             // probably faster to redraw the unique row instead of removing everything
 421             this.display_data();
 422         } else {
 423             var $row = $(event.target).parent().parent();
 424             $row.nextAll().slice(0,rows_removed).remove();
 425         }
 426         if (update_groupby && this.graph_view) {
 427             this.graph_view.register_groupby(this.pivot.rows.groupby, this.pivot.cols.groupby);
 428         }
 429     },
 430
 431     fold_col: function (header) {
 432         var update_groupby = this.pivot.fold(header);
 433
 434         this.display_data();
 435         if (update_groupby && this.graph_view) {
 436             this.graph_view.register_groupby(this.pivot.rows.groupby, this.pivot.cols.groupby);
 437         }
 438     },
 439
 440     swap_axis: function () {
 441         this.pivot.swap_axis();
 442         this.display_data();
 443         this.graph_view.register_groupby(this.pivot.rows.groupby, this.pivot.cols.groupby);
 444     },
 445
 446     // ----------------------------------------------------------------------
 447     // Convert Pivot data structure into table structure :
 448     //      compute rows, cols, colors, cell width, cell height, ...
 449     // ----------------------------------------------------------------------
 450     build_table: function(raw) {
 451         return {
 452             headers: this.build_headers(),
 453             measure_row: this.build_measure_row(),
 454             rows: this.build_rows(this.pivot.rows.headers,raw),
 455             nbr_measures: this.pivot.measures.length,
 456             title: this.title,
 457         };
 458     },
 459
 460     build_headers: function () {
 461         var pivot = this.pivot,
 462             nbr_measures = pivot.measures.length,
 463             height = _.max(_.map(pivot.cols.headers, function(g) {return g.path.length;})) + 1,
 464             rows = [];
 465
 466         _.each(pivot.cols.headers, function (col) {
 467             var cell_width = nbr_measures * (col.expanded ? pivot.get_ancestor_leaves(col).length : 1),
 468                 cell_height = col.expanded ? 1 : height - col.path.length,
 469                 cell = {width: cell_width, height: cell_height, title: col.title, id: col.id, expanded: col.expanded};
 470             if (rows[col.path.length]) {
 471                 rows[col.path.length].push(cell);
 472             } else {
 473                 rows[col.path.length] = [cell];
 474             }
 475         });
 476
 477         if (pivot.get_cols_leaves().length > 1) {
 478             rows[0].push({width: nbr_measures, height: height, title: ' ', id: pivot.main_col().id });
 479         }
 480         if (pivot.cols.headers.length === 1) {
 481             rows = [[{width: nbr_measures, height: 1, title: _t('Total'), id: pivot.main_col().id, expanded: false}]];
 482         }
 483         return rows;
 484     },
 485
 486     build_measure_row: function () {
 487         var nbr_leaves = this.pivot.get_cols_leaves().length,
 488             nbr_cols = nbr_leaves + ((nbr_leaves > 1) ? 1 : 0),
 489             result = [],
 490             add_total = this.pivot.get_cols_leaves().length > 1,
 491             i, m;
 492         for (i = 0; i < nbr_cols; i++) {
 493             for (m = 0; m < this.pivot.measures.length; m++) {
 494                 result.push({
 495                     text:this.pivot.measures[m].string,
 496                     is_bold: add_total && (i === nbr_cols - 1)
 497                 });
 498             }
 499         }
 500         return result;
 501     },
 502
 503     make_cell: function (row, col, value, index, raw) {
 504         var formatted_value = raw && !_.isUndefined(value) ? value : openerp.web.format_value(value, {type:this.pivot.measures[index].type}),
 505             cell = {value:formatted_value};
 506
 507         return cell;
 508     },
 509
 510     build_rows: function (headers, raw) {
 511         var self = this,
 512             pivot = this.pivot,
 513             m, i, j, k, cell, row;
 514
 515         var rows = [];
 516         var cells, pivot_cells, values;
 517
 518         var nbr_of_rows = headers.length;
 519         var col_headers = pivot.get_cols_leaves();
 520
 521         for (i = 0; i < nbr_of_rows; i++) {
 522             row = headers[i];
 523             cells = [];
 524             pivot_cells = [];
 525             for (j = 0; j < pivot.cells.length; j++) {
 526                 if (pivot.cells[j].x == row.id || pivot.cells[j].y == row.id) {
 527                     pivot_cells.push(pivot.cells[j]);
 528                 }
 529             }
 530
 531             for (j = 0; j < col_headers.length; j++) {
 532                 values = undefined;
 533                 for (k = 0; k < pivot_cells.length; k++) {
 534                     if (pivot_cells[k].x == col_headers[j].id || pivot_cells[k].y == col_headers[j].id) {
 535                         values = pivot_cells[k].values;
 536                         break;
 537                     }
 538                 }
 539                 if (!values) { values = new Array(pivot.measures.length);}
 540                 for (m = 0; m < pivot.measures.length; m++) {
 541                     cells.push(self.make_cell(row,col_headers[j],values[m], m, raw));
 542                 }
 543             }
 544             if (col_headers.length > 1) {
 545                 var totals = pivot.get_total(row);
 546                 for (m = 0; m < pivot.measures.length; m++) {
 547                     cell = self.make_cell(row, pivot.cols.headers[0], totals[m], m, raw);
 548                     cell.is_bold = 'true';
 549                     cells.push(cell);
 550                 }
 551             }
 552             rows.push({
 553                 id: row.id,
 554                 indent: row.path.length,
 555                 title: row.title,
 556                 expanded: row.expanded,
 557                 cells: cells,
 558             });
 559         }
 560
 561         return rows;
 562     },
 563
 564     // ----------------------------------------------------------------------
 565     // Main display method
 566     // ----------------------------------------------------------------------
 567     display_data: function () {
 568         var scroll = $(window).scrollTop();
 569         this.$('.graph_main_content svg').remove();
 570         this.$('.graph_main_content div').remove();
 571         this.table.empty();
 572         this.$('.graph_options_selection label').last().toggleClass('disabled', this.pivot.no_data);
 573         this.width = this.$el.width();
 574         this.height = Math.min(Math.max(document.documentElement.clientHeight - 116 - 60, 250), Math.round(0.8*this.$el.width()));
 575
 576         this.$('.graph_header').toggle(this.visible_ui);
 577         if (this.pivot.no_data) {
 578             this.$('.graph_main_content').append($(QWeb.render('graph_no_data')));
 579         } else {
 580             if (this.mode === 'pivot') {
 581                 this.draw_table();
 582                 $(window).scrollTop(scroll);
 583             } else {
 584                 this.$('.graph_main_content').append($('<div><svg>'));
 585                 this.svg = this.$('.graph_main_content svg')[0];
 586                 this[this.mode]();
 587             }
 588         }
 589     },
 590
 591     // ----------------------------------------------------------------------
 592     // Drawing the table
 593     // ----------------------------------------------------------------------
 594     draw_table: function () {
 595         var custom_gbs = this.graph_view.get_custom_filter_groupbys(),
 596             frozen_rows = custom_gbs.groupby.length,
 597             frozen_cols = custom_gbs.col_groupby.length;
 598
 599         var table = this.build_table();
 600         var doc_fragment = $(document.createDocumentFragment());
 601         this.draw_headers(table.headers, doc_fragment, frozen_cols);
 602         this.draw_measure_row(table.measure_row, doc_fragment);
 603         this.draw_rows(table.rows, doc_fragment, frozen_rows);
 604         this.table.append(doc_fragment);
 605     },
 606
 607     make_header_cell: function (header, frozen) {
 608         var cell = (_.has(header, 'cells') ? $('<td>') : $('<th>'))
 609                         .addClass('graph_border')
 610                         .attr('rowspan', header.height)
 611                         .attr('colspan', header.width);
 612         var $content = $('<span>').attr('href','#')
 613                                  .text(' ' + (header.title || _t('Undefined')))
 614                                  .css('margin-left', header.indent*30 + 'px')
 615                                  .attr('data-id', header.id);
 616         if (_.has(header, 'expanded')) {
 617             if (('indent' in header) && header.indent >= frozen) {
 618                 $content.addClass(header.expanded ? 'fa fa-minus-square' : 'fa fa-plus-square');
 619                 $content.addClass('web_graph_click');
 620             }
 621             if (!('indent' in header) && header.lvl >= frozen) {
 622                 $content.addClass(header.expanded ? 'fa fa-minus-square' : 'fa fa-plus-square');
 623                 $content.addClass('web_graph_click');
 624             }
 625         } else {
 626             $content.css('font-weight', 'bold');
 627         }
 628         return cell.append($content);
 629     },
 630
 631     draw_headers: function (headers, doc_fragment, frozen_cols) {
 632         var make_cell = this.make_header_cell,
 633             $empty_cell = $('<th>').attr('rowspan', headers.length),
 634             $thead = $('<thead>');
 635
 636         _.each(headers, function (row, lvl) {
 637             var $row = $('<tr>');
 638             _.each(row, function (header) {
 639                 header.lvl = lvl;
 640                 $row.append(make_cell(header, frozen_cols));
 641             });
 642             $thead.append($row);
 643         });
 644         $thead.children(':first').prepend($empty_cell);
 645         doc_fragment.append($thead);
 646         this.$thead = $thead;
 647     },
 648
 649     draw_measure_row: function (measure_row) {
 650         var $row = $('<tr>').append('<th>');
 651         _.each(measure_row, function (cell) {
 652             var $cell = $('<th>').addClass('measure_row').text(cell.text);
 653             if (cell.is_bold) {$cell.css('font-weight', 'bold');}
 654             $row.append($cell);
 655         });
 656         this.$thead.append($row);
 657     },
 658
 659     draw_row: function (row, frozen_rows) {
 660         var $row = $('<tr>')
 661             .attr('data-indent', row.indent)
 662             .append(this.make_header_cell(row, frozen_rows));
 663
 664         var cells_length = row.cells.length;
 665         var cells_list = [];
 666         var cell, hcell;
 667
 668         for (var j = 0; j < cells_length; j++) {
 669             cell = row.cells[j];
 670             hcell = '<td';
 671             if (cell.is_bold || cell.color) {
 672                 hcell += ' style="';
 673                 if (cell.is_bold) hcell += 'font-weight: bold;';
 674                 if (cell.color) hcell += 'background-color:' + $.Color(255, cell.color, cell.color) + ';';
 675                 hcell += '"';
 676             }
 677             hcell += '>' + cell.value + '</td>';
 678             cells_list[j] = hcell;
 679         }
 680         return $row.append(cells_list.join(''));
 681     },
 682
 683     draw_rows: function (rows, doc_fragment, frozen_rows) {
 684         var rows_length = rows.length,
 685             $tbody = $('<tbody>');
 686
 687         doc_fragment.append($tbody);
 688         for (var i = 0; i < rows_length; i++) {
 689             $tbody.append(this.draw_row(rows[i], frozen_rows));
 690         }
 691     },
 692
 693     // ----------------------------------------------------------------------
 694     // Drawing charts code
 695     // ----------------------------------------------------------------------
 696     bar: function () {
 697         var self = this,
 698             dim_x = this.pivot.rows.groupby.length,
 699             dim_y = this.pivot.cols.groupby.length,
 700             show_controls = (this.width > 400 && this.height > 300 && dim_x + dim_y >=2),
 701             data;
 702
 703         // No groupby
 704         if ((dim_x === 0) && (dim_y === 0)) {
 705             data = [{key: _t('Total'), values:[{
 706                 x: _t('Total'),
 707                 y: this.pivot.get_total()[0],
 708             }]}];
 709         // Only column groupbys
 710         } else if ((dim_x === 0) && (dim_y >= 1)){
 711             data =  _.map(this.pivot.get_cols_with_depth(1), function (header) {
 712                 return {
 713                     key: header.title,
 714                     values: [{x:header.title, y: self.pivot.get_total(header)[0]}]
 715                 };
 716             });
 717         // Just 1 row groupby
 718         } else if ((dim_x === 1) && (dim_y === 0))  {
 719             data = _.map(this.pivot.main_row().children, function (pt) {
 720                 var value = self.pivot.get_total(pt)[0],
 721                     title = (pt.title !== undefined) ? pt.title : _t('Undefined');
 722                 return {x: title, y: value};
 723             });
 724             data = [{key: self.pivot.measures[0].string, values:data}];
 725         // 1 row groupby and some col groupbys
 726         } else if ((dim_x === 1) && (dim_y >= 1))  {
 727             data = _.map(this.pivot.get_cols_with_depth(1), function (colhdr) {
 728                 var values = _.map(self.pivot.get_rows_with_depth(1), function (header) {
 729                     return {
 730                         x: header.title || _t('Undefined'),
 731                         y: self.pivot.get_values(header.id, colhdr.id)[0] || 0
 732                     };
 733                 });
 734                 return {key: colhdr.title || _t('Undefined'), values: values};
 735             });
 736         // At least two row groupby
 737         } else {
 738             var keys = _.uniq(_.map(this.pivot.get_rows_with_depth(2), function (hdr) {
 739                 return hdr.title || _t('Undefined');
 740             }));
 741             data = _.map(keys, function (key) {
 742                 var values = _.map(self.pivot.get_rows_with_depth(1), function (hdr) {
 743                     var subhdr = _.find(hdr.children, function (child) {
 744                         return ((child.title === key) || ((child.title === undefined) && (key === _t('Undefined'))));
 745                     });
 746                     return {
 747                         x: hdr.title || _t('Undefined'),
 748                         y: (subhdr) ? self.pivot.get_total(subhdr)[0] : 0
 749                     };
 750                 });
 751                 return {key:key, values: values};
 752             });
 753         }
 754
 755         nv.addGraph(function () {
 756           var chart = nv.models.multiBarChart()
 757                 .reduceXTicks(false)
 758                 .stacked(self.bar_ui === 'stack')
 759                 .showControls(show_controls);
 760
 761             if (self.width / data[0].values.length < 80) {
 762                 chart.rotateLabels(-15);
 763                 chart.reduceXTicks(true);
 764                 chart.margin({bottom:40});
 765             }
 766
 767             d3.select(self.svg)
 768                 .datum(data)
 769                 .attr('width', self.width)
 770                 .attr('height', self.height)
 771                 .call(chart);
 772
 773             nv.utils.windowResize(chart.update);
 774             return chart;
 775         });
 776
 777     },
 778
 779     line: function () {
 780         var self = this,
 781             dim_x = this.pivot.rows.groupby.length,
 782             dim_y = this.pivot.cols.groupby.length;
 783
 784         var rows = this.pivot.get_rows_with_depth(dim_x),
 785             labels = _.pluck(rows, 'title');
 786
 787         var data = _.map(this.pivot.get_cols_leaves(), function (col) {
 788             var values = _.map(rows, function (row, index) {
 789                 return {x: index, y: self.pivot.get_values(row.id,col.id)[0] || 0};
 790             });
 791             var title = _.map(col.path, function (p) {
 792                 return p || _t('Undefined');
 793             }).join('/');
 794             if (dim_y === 0) {
 795                 title = self.pivot.measures[0].string;
 796             }
 797             return {values: values, key: title};
 798         });
 799
 800         nv.addGraph(function () {
 801             var chart = nv.models.lineChart()
 802                 .x(function (d,u) { return u; });
 803
 804             chart.xAxis.tickFormat(function (d,u) {return labels[d];});
 805
 806             d3.select(self.svg)
 807                 .attr('width', self.width)
 808                 .attr('height', self.height)
 809                 .datum(data)
 810                 .call(chart);
 811
 812             return chart;
 813           });
 814     },
 815
 816     pie: function () {
 817         var self = this,
 818             dim_x = this.pivot.rows.groupby.length;
 819         var data = _.map(this.pivot.get_rows_leaves(), function (row) {
 820             var title = _.map(row.path, function (p) {
 821                 return p || _t('Undefined');
 822             }).join('/');
 823             if (dim_x === 0) {
 824                 title = self.measure_label;
 825             }
 826             return {x: title, y: self.pivot.get_total(row)[0]};
 827         });
 828
 829         nv.addGraph(function () {
 830             var chart = nv.models.pieChart()
 831                 .width(self.width)
 832                 .height(self.height)
 833                 .color(d3.scale.category10().range());
 834
 835             d3.select(self.svg)
 836                 .datum(data)
 837                 .transition().duration(1200)
 838                 .attr('width', self.width)
 839                 .attr('height', self.height)
 840                 .call(chart);
 841
 842             nv.utils.windowResize(chart.update);
 843             return chart;
 844         });
 845     },
 846
 847     // ----------------------------------------------------------------------
 848     // Controller stuff...
 849     // ----------------------------------------------------------------------
 850     export_xls: function() {
 851         var c = openerp.webclient.crashmanager;
 852         openerp.web.blockUI();
 853         this.session.get_file({
 854             url: '/web_graph/export_xls',
 855             data: {data: JSON.stringify(this.build_table(true))},
 856             complete: openerp.web.unblockUI,
 857             error: c.rpc_error.bind(c)
 858         });
 859     },
 860
 861 });
 862
 863 // Utility function: returns true if the beginning of array2 is array1 and
 864 // if array1 is not array2
 865 function is_strict_beginning_of (array1, array2) {
 866     if (array1.length >= array2.length) { return false; }
 867     var result = true;
 868     for (var i = 0; i < array1.length; i++) {
 869         if (!_.isEqual(array1[i], array2[i])) { return false;}
 870     }
 871     return result;
 872 }
 873 })();