1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 | /** Spreadsheet **/ (function() { function getRowLabel(value){ if (this.options.spreadsheet.tickFormatter){ //TODO maybe pass the xaxis formatter to the custom tick formatter as an opt-out? return this.options.spreadsheet.tickFormatter(value); } else { var t = _.find(this.axes.x.ticks, function(t){return t.v == value;}); if (t) { return t.label; } return value; } } var D = Flotr.DOM, _ = Flotr._; Flotr.addPlugin('spreadsheet', { options: { show: false, // => show the data grid using two tabs tabGraphLabel: 'Graph', tabDataLabel: 'Data', toolbarDownload: 'Download CSV', // @todo: add better language support toolbarSelectAll: 'Select all', csvFileSeparator: ',', decimalSeparator: '.', tickFormatter: null, initialTab: 'graph' }, /** * Builds the tabs in the DOM */ callbacks: { 'flotr:afterconstruct': function(){ // @TODO necessary? //this.el.select('.flotr-tabs-group,.flotr-datagrid-container').invoke('remove'); if (!this.options.spreadsheet.show) return; var ss = this.spreadsheet, container = D.node('<div class="flotr-tabs-group" style="position:absolute;left:0px;width:'+this.canvasWidth+'px"></div>'), graph = D.node('<div style="float:left" class="flotr-tab selected">'+this.options.spreadsheet.tabGraphLabel+'</div>'), data = D.node('<div style="float:left" class="flotr-tab">'+this.options.spreadsheet.tabDataLabel+'</div>'), offset; ss.tabsContainer = container; ss.tabs = { graph : graph, data : data }; D.insert(container, graph); D.insert(container, data); D.insert(this.el, container); offset = D.size(data).height + 2; this.plotOffset.bottom += offset; D.setStyles(container, {top: this.canvasHeight-offset+'px'}); this. observe(graph, 'click', function(){ss.showTab('graph');}). observe(data, 'click', function(){ss.showTab('data');}); if (this.options.spreadsheet.initialTab !== 'graph'){ ss.showTab(this.options.spreadsheet.initialTab); } } }, /** * Builds a matrix of the data to make the correspondance between the x values and the y values : * X value => Y values from the axes * @return {Array} The data grid */ loadDataGrid: function(){ if (this.seriesData) return this.seriesData; var s = this.series, rows = {}; /* The data grid is a 2 dimensions array. There is a row for each X value. * Each row contains the x value and the corresponding y value for each serie ('undefined' if there isn't one) **/ _.each(s, function(serie, i){ _.each(serie.data, function (v) { var x = v[0], y = v[1], r = rows[x]; if (r) { r[i+1] = y; } else { var newRow = []; newRow[0] = x; newRow[i+1] = y; rows[x] = newRow; } }); }); // The data grid is sorted by x value this.seriesData = _.sortBy(rows, function(row, x){ return parseInt(x, 10); }); return this.seriesData; }, /** * Constructs the data table for the spreadsheet * @todo make a spreadsheet manager (Flotr.Spreadsheet) * @return {Element} The resulting table element */ constructDataGrid: function(){ // If the data grid has already been built, nothing to do here if (this.spreadsheet.datagrid) return this.spreadsheet.datagrid; var s = this.series, datagrid = this.spreadsheet.loadDataGrid(), colgroup = ['<colgroup><col />'], buttonDownload, buttonSelect, t; // First row : series' labels var html = ['<table class="flotr-datagrid"><tr class="first-row">']; html.push('<th> </th>'); _.each(s, function(serie,i){ html.push('<th scope="col">'+(serie.label || String.fromCharCode(65+i))+'</th>'); colgroup.push('<col />'); }); html.push('</tr>'); // Data rows _.each(datagrid, function(row){ html.push('<tr>'); _.times(s.length+1, function(i){ var tag = 'td', value = row[i], // TODO: do we really want to handle problems with floating point // precision here? content = (!_.isUndefined(value) ? Math.round(value*100000)/100000 : ''); if (i === 0) { tag = 'th'; var label = getRowLabel.call(this, content); if (label) content = label; } html.push('<'+tag+(tag=='th'?' scope="row"':'')+'>'+content+'</'+tag+'>'); }, this); html.push('</tr>'); }, this); colgroup.push('</colgroup>'); t = D.node(html.join('')); /** * @TODO disabled this if (!Flotr.isIE || Flotr.isIE == 9) { function handleMouseout(){ t.select('colgroup col.hover, th.hover').invoke('removeClassName', 'hover'); } function handleMouseover(e){ var td = e.element(), siblings = td.previousSiblings(); t.select('th[scope=col]')[siblings.length-1].addClassName('hover'); t.select('colgroup col')[siblings.length].addClassName('hover'); } _.each(t.select('td'), function(td) { Flotr.EventAdapter. observe(td, 'mouseover', handleMouseover). observe(td, 'mouseout', handleMouseout); }); } */ buttonDownload = D.node( '<button type="button" class="flotr-datagrid-toolbar-button">' + this.options.spreadsheet.toolbarDownload + '</button>'); buttonSelect = D.node( '<button type="button" class="flotr-datagrid-toolbar-button">' + this.options.spreadsheet.toolbarSelectAll+ '</button>'); this. observe(buttonDownload, 'click', _.bind(this.spreadsheet.downloadCSV, this)). observe(buttonSelect, 'click', _.bind(this.spreadsheet.selectAllData, this)); var toolbar = D.node('<div class="flotr-datagrid-toolbar"></div>'); D.insert(toolbar, buttonDownload); D.insert(toolbar, buttonSelect); var containerHeight =this.canvasHeight - D.size(this.spreadsheet.tabsContainer).height-2, container = D.node('<div class="flotr-datagrid-container" style="position:absolute;left:0px;top:0px;width:'+ this.canvasWidth+'px;height:'+containerHeight+'px;overflow:auto;z-index:10"></div>'); D.insert(container, toolbar); D.insert(container, t); D.insert(this.el, container); this.spreadsheet.datagrid = t; this.spreadsheet.container = container; return t; }, /** * Shows the specified tab, by its name * @todo make a tab manager (Flotr.Tabs) * @param {String} tabName - The tab name */ showTab: function(tabName){ if (this.spreadsheet.activeTab === tabName){ return; } switch(tabName) { case 'graph': D.hide(this.spreadsheet.container); D.removeClass(this.spreadsheet.tabs.data, 'selected'); D.addClass(this.spreadsheet.tabs.graph, 'selected'); break; case 'data': if (!this.spreadsheet.datagrid) this.spreadsheet.constructDataGrid(); D.show(this.spreadsheet.container); D.addClass(this.spreadsheet.tabs.data, 'selected'); D.removeClass(this.spreadsheet.tabs.graph, 'selected'); break; default: throw 'Illegal tab name: ' + tabName; } this.spreadsheet.activeTab = tabName; }, /** * Selects the data table in the DOM for copy/paste */ selectAllData: function(){ if (this.spreadsheet.tabs) { var selection, range, doc, win, node = this.spreadsheet.constructDataGrid(); this.spreadsheet.showTab('data'); // deferred to be able to select the table setTimeout(function () { if ((doc = node.ownerDocument) && (win = doc.defaultView) && win.getSelection && doc.createRange && (selection = window.getSelection()) && selection.removeAllRanges) { range = doc.createRange(); range.selectNode(node); selection.removeAllRanges(); selection.addRange(range); } else if (document.body && document.body.createTextRange && (range = document.body.createTextRange())) { range.moveToElementText(node); range.select(); } }, 0); return true; } else return false; }, /** * Converts the data into CSV in order to download a file */ downloadCSV: function(){ var csv = '', series = this.series, options = this.options, dg = this.spreadsheet.loadDataGrid(), separator = encodeURIComponent(options.spreadsheet.csvFileSeparator); if (options.spreadsheet.decimalSeparator === options.spreadsheet.csvFileSeparator) { throw "The decimal separator is the same as the column separator ("+options.spreadsheet.decimalSeparator+")"; } // The first row _.each(series, function(serie, i){ csv += separator+'"'+(serie.label || String.fromCharCode(65+i)).replace(/\"/g, '\\"')+'"'; }); csv += "%0D%0A"; // \r\n // For each row csv += _.reduce(dg, function(memo, row){ var rowLabel = getRowLabel.call(this, row[0]) || ''; rowLabel = '"'+(rowLabel+'').replace(/\"/g, '\\"')+'"'; var numbers = row.slice(1).join(separator); if (options.spreadsheet.decimalSeparator !== '.') { numbers = numbers.replace(/\./g, options.spreadsheet.decimalSeparator); } return memo + rowLabel+separator+numbers+"%0D%0A"; // \t and \r\n }, '', this); if (Flotr.isIE && Flotr.isIE < 9) { csv = csv.replace(new RegExp(separator, 'g'), decodeURIComponent(separator)).replace(/%0A/g, '\n').replace(/%0D/g, '\r'); window.open().document.write(csv); } else window.open('data:text/csv,'+csv); } }); })(); |