3 * Copyright(c) 2006-2009 Ext JS, LLC
5 * http://www.extjs.com/license
8 * @class Ext.grid.GroupingView
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9 * @extends Ext.grid.GridView
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10 * Adds the ability for single level grouping to the grid. A {@link Ext.data.GroupingStore GroupingStore}
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11 * must be used to enable grouping. Some grouping characteristics may also be configured at the
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12 * {@link Ext.grid.Column Column level}<div class="mdetail-params"><ul>
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13 * <li><code>{@link Ext.grid.Column#emptyGroupText emptyGroupText}</li>
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14 * <li><code>{@link Ext.grid.Column#groupable groupable}</li>
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15 * <li><code>{@link Ext.grid.Column#groupName groupName}</li>
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16 * <li><code>{@link Ext.grid.Column#groupRender groupRender}</li>
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18 * <p>Sample usage:</p>
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20 var grid = new Ext.grid.GridPanel({
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21 // A groupingStore is required for a GroupingView
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22 store: new {@link Ext.data.GroupingStore}({
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26 sortInfo: {field: 'company', direction: 'ASC'},
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27 {@link Ext.data.GroupingStore#groupOnSort groupOnSort}: true,
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28 {@link Ext.data.GroupingStore#remoteGroup remoteGroup}: true,
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29 {@link Ext.data.GroupingStore#groupField groupField}: 'industry'
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31 colModel: new {@link Ext.grid.ColumnModel}({
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33 {id:'company',header: 'Company', width: 60, dataIndex: 'company'},
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34 // {@link Ext.grid.Column#groupable groupable}, {@link Ext.grid.Column#groupName groupName}, {@link Ext.grid.Column#groupRender groupRender} are also configurable at column level
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35 {header: 'Price', renderer: Ext.util.Format.usMoney, dataIndex: 'price', {@link Ext.grid.Column#groupable groupable}: false},
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36 {header: 'Change', dataIndex: 'change', renderer: Ext.util.Format.usMoney},
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37 {header: 'Industry', dataIndex: 'industry'},
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38 {header: 'Last Updated', renderer: Ext.util.Format.dateRenderer('m/d/Y'), dataIndex: 'lastChange'}
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42 menuDisabled: false,
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47 view: new Ext.grid.GroupingView({
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48 {@link Ext.grid.GridView#forceFit forceFit}: true,
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49 // custom grouping text template to display the number of items per group
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50 {@link #groupTextTpl}: '{text} ({[values.rs.length]} {[values.rs.length > 1 ? "Items" : "Item"]})'
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57 animCollapse: false,
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58 title: 'Grouping Example',
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59 iconCls: 'icon-grid',
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60 renderTo: document.body
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64 * @param {Object} config
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66 Ext.grid.GroupingView = Ext.extend(Ext.grid.GridView, {
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69 * @cfg {String} groupByText Text displayed in the grid header menu for grouping by a column
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70 * (defaults to 'Group By This Field').
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72 groupByText : 'Group By This Field',
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74 * @cfg {String} showGroupsText Text displayed in the grid header for enabling/disabling grouping
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75 * (defaults to 'Show in Groups').
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77 showGroupsText : 'Show in Groups',
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79 * @cfg {Boolean} hideGroupedColumn <tt>true</tt> to hide the column that is currently grouped (defaults to <tt>false</tt>)
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81 hideGroupedColumn : false,
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83 * @cfg {Boolean} showGroupName If <tt>true</tt> will display a prefix plus a ': ' before the group field value
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84 * in the group header line. The prefix will consist of the <tt><b>{@link Ext.grid.Column#groupName groupName}</b></tt>
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85 * (or the configured <tt><b>{@link Ext.grid.Column#header header}</b></tt> if not provided) configured in the
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86 * {@link Ext.grid.Column} for each set of grouped rows (defaults to <tt>true</tt>).
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88 showGroupName : true,
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90 * @cfg {Boolean} startCollapsed <tt>true</tt> to start all groups collapsed (defaults to <tt>false</tt>)
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92 startCollapsed : false,
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94 * @cfg {Boolean} enableGrouping <tt>false</tt> to disable grouping functionality (defaults to <tt>true</tt>)
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96 enableGrouping : true,
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98 * @cfg {Boolean} enableGroupingMenu <tt>true</tt> to enable the grouping control in the column menu (defaults to <tt>true</tt>)
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100 enableGroupingMenu : true,
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102 * @cfg {Boolean} enableNoGroups <tt>true</tt> to allow the user to turn off grouping (defaults to <tt>true</tt>)
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104 enableNoGroups : true,
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106 * @cfg {String} emptyGroupText The text to display when there is an empty group value (defaults to <tt>'(None)'</tt>).
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107 * May also be specified per column, see {@link Ext.grid.Column}.{@link Ext.grid.Column#emptyGroupText emptyGroupText}.
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109 emptyGroupText : '(None)',
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111 * @cfg {Boolean} ignoreAdd <tt>true</tt> to skip refreshing the view when new rows are added (defaults to <tt>false</tt>)
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115 * @cfg {String} groupTextTpl The template used to render the group header (defaults to <tt>'{text}'</tt>).
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116 * This is used to format an object which contains the following properties:
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117 * <div class="mdetail-params"><ul>
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118 * <li><b>group</b> : String<p class="sub-desc">The <i>rendered</i> value of the group field.
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119 * By default this is the unchanged value of the group field. If a <tt><b>{@link Ext.grid.Column#groupRenderer groupRenderer}</b></tt>
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120 * is specified, it is the result of a call to that function.</p></li>
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121 * <li><b>gvalue</b> : Object<p class="sub-desc">The <i>raw</i> value of the group field.</p></li>
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122 * <li><b>text</b> : String<p class="sub-desc">The configured header (as described in <tt>{@link #showGroupName})</tt>
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123 * if <tt>{@link #showGroupName}</tt> is <tt>true</tt>) plus the <i>rendered</i> group field value.</p></li>
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124 * <li><b>groupId</b> : String<p class="sub-desc">A unique, generated ID which is applied to the
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125 * View Element which contains the group.</p></li>
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126 * <li><b>startRow</b> : Number<p class="sub-desc">The row index of the Record which caused group change.</p></li>
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127 * <li><b>rs</b> : Array<p class="sub-desc">Contains a single element: The Record providing the data
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128 * for the row which caused group change.</p></li>
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129 * <li><b>cls</b> : String<p class="sub-desc">The generated class name string to apply to the group header Element.</p></li>
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130 * <li><b>style</b> : String<p class="sub-desc">The inline style rules to apply to the group header Element.</p></li>
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132 * See {@link Ext.XTemplate} for information on how to format data using a template. Possible usage:<pre><code>
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133 var grid = new Ext.grid.GridPanel({
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135 view: new Ext.grid.GroupingView({
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136 groupTextTpl: '{text} ({[values.rs.length]} {[values.rs.length > 1 ? "Items" : "Item"]})'
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141 groupTextTpl : '{text}',
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143 * @cfg {Function} groupRenderer This property must be configured in the {@link Ext.grid.Column} for
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151 initTemplates : function(){
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152 Ext.grid.GroupingView.superclass.initTemplates.call(this);
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155 var sm = this.grid.getSelectionModel();
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156 sm.on(sm.selectRow ? 'beforerowselect' : 'beforecellselect',
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157 this.onBeforeRowSelect, this);
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159 if(!this.startGroup){
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160 this.startGroup = new Ext.XTemplate(
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161 '<div id="{groupId}" class="x-grid-group {cls}">',
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162 '<div id="{groupId}-hd" class="x-grid-group-hd" style="{style}"><div class="x-grid-group-title">', this.groupTextTpl ,'</div></div>',
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163 '<div id="{groupId}-bd" class="x-grid-group-body">'
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166 this.startGroup.compile();
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167 this.endGroup = '</div></div>';
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171 findGroup : function(el){
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172 return Ext.fly(el).up('.x-grid-group', this.mainBody.dom);
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176 getGroups : function(){
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177 return this.hasRows() ? this.mainBody.dom.childNodes : [];
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181 onAdd : function(){
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182 if(this.enableGrouping && !this.ignoreAdd){
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183 var ss = this.getScrollState();
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185 this.restoreScroll(ss);
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186 }else if(!this.enableGrouping){
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187 Ext.grid.GroupingView.superclass.onAdd.apply(this, arguments);
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192 onRemove : function(ds, record, index, isUpdate){
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193 Ext.grid.GroupingView.superclass.onRemove.apply(this, arguments);
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194 var g = document.getElementById(record._groupId);
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195 if(g && g.childNodes[1].childNodes.length < 1){
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198 this.applyEmptyText();
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202 refreshRow : function(record){
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203 if(this.ds.getCount()==1){
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206 this.isUpdating = true;
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207 Ext.grid.GroupingView.superclass.refreshRow.apply(this, arguments);
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208 this.isUpdating = false;
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213 beforeMenuShow : function(){
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214 var item, items = this.hmenu.items, disabled = this.cm.config[this.hdCtxIndex].groupable === false;
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215 if((item = items.get('groupBy'))){
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216 item.setDisabled(disabled);
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218 if((item = items.get('showGroups'))){
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219 item.setDisabled(disabled);
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220 item.setChecked(!!this.getGroupField(), true);
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225 renderUI : function(){
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226 Ext.grid.GroupingView.superclass.renderUI.call(this);
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227 this.mainBody.on('mousedown', this.interceptMouse, this);
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229 if(this.enableGroupingMenu && this.hmenu){
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230 this.hmenu.add('-',{
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232 text: this.groupByText,
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233 handler: this.onGroupByClick,
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235 iconCls:'x-group-by-icon'
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237 if(this.enableNoGroups){
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239 itemId:'showGroups',
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240 text: this.showGroupsText,
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242 checkHandler: this.onShowGroupsClick,
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246 this.hmenu.on('beforeshow', this.beforeMenuShow, this);
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251 onGroupByClick : function(){
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252 this.grid.store.groupBy(this.cm.getDataIndex(this.hdCtxIndex));
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253 this.beforeMenuShow(); // Make sure the checkboxes get properly set when changing groups
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257 onShowGroupsClick : function(mi, checked){
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259 this.onGroupByClick();
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261 this.grid.store.clearGrouping();
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266 * Toggles the specified group if no value is passed, otherwise sets the expanded state of the group to the value passed.
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267 * @param {String} groupId The groupId assigned to the group (see getGroupId)
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268 * @param {Boolean} expanded (optional)
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270 toggleGroup : function(group, expanded){
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271 this.grid.stopEditing(true);
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272 group = Ext.getDom(group);
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273 var gel = Ext.fly(group);
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274 expanded = expanded !== undefined ?
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275 expanded : gel.hasClass('x-grid-group-collapsed');
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277 this.state[gel.dom.id] = expanded;
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278 gel[expanded ? 'removeClass' : 'addClass']('x-grid-group-collapsed');
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282 * Toggles all groups if no value is passed, otherwise sets the expanded state of all groups to the value passed.
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283 * @param {Boolean} expanded (optional)
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285 toggleAllGroups : function(expanded){
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286 var groups = this.getGroups();
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287 for(var i = 0, len = groups.length; i < len; i++){
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288 this.toggleGroup(groups[i], expanded);
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293 * Expands all grouped rows.
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295 expandAllGroups : function(){
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296 this.toggleAllGroups(true);
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300 * Collapses all grouped rows.
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302 collapseAllGroups : function(){
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303 this.toggleAllGroups(false);
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307 interceptMouse : function(e){
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308 var hd = e.getTarget('.x-grid-group-hd', this.mainBody);
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311 this.toggleGroup(hd.parentNode);
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316 getGroup : function(v, r, groupRenderer, rowIndex, colIndex, ds){
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317 var g = groupRenderer ? groupRenderer(v, {}, r, rowIndex, colIndex, ds) : String(v);
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319 g = this.cm.config[colIndex].emptyGroupText || this.emptyGroupText;
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325 getGroupField : function(){
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326 return this.grid.store.getGroupState();
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330 afterRender : function(){
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331 Ext.grid.GroupingView.superclass.afterRender.call(this);
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332 if(this.grid.deferRowRender){
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333 this.updateGroupWidths();
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338 renderRows : function(){
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339 var groupField = this.getGroupField();
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340 var eg = !!groupField;
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341 // if they turned off grouping and the last grouped field is hidden
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342 if(this.hideGroupedColumn) {
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343 var colIndex = this.cm.findColumnIndex(groupField);
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344 if(!eg && this.lastGroupField !== undefined) {
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345 this.mainBody.update('');
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346 this.cm.setHidden(this.cm.findColumnIndex(this.lastGroupField), false);
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347 delete this.lastGroupField;
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348 }else if (eg && this.lastGroupField === undefined) {
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349 this.lastGroupField = groupField;
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350 this.cm.setHidden(colIndex, true);
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351 }else if (eg && this.lastGroupField !== undefined && groupField !== this.lastGroupField) {
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352 this.mainBody.update('');
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353 var oldIndex = this.cm.findColumnIndex(this.lastGroupField);
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354 this.cm.setHidden(oldIndex, false);
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355 this.lastGroupField = groupField;
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356 this.cm.setHidden(colIndex, true);
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359 return Ext.grid.GroupingView.superclass.renderRows.apply(
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364 doRender : function(cs, rs, ds, startRow, colCount, stripe){
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368 var groupField = this.getGroupField(),
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369 colIndex = this.cm.findColumnIndex(groupField),
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372 this.enableGrouping = !!groupField;
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374 if(!this.enableGrouping || this.isUpdating){
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375 return Ext.grid.GroupingView.superclass.doRender.apply(
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378 var gstyle = 'width:'+this.getTotalWidth()+';';
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380 var gidPrefix = this.grid.getGridEl().id;
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381 var cfg = this.cm.config[colIndex];
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382 var groupRenderer = cfg.groupRenderer || cfg.renderer;
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383 var prefix = this.showGroupName ?
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384 (cfg.groupName || cfg.header)+': ' : '';
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386 var groups = [], curGroup, i, len, gid;
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387 for(i = 0, len = rs.length; i < len; i++){
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388 var rowIndex = startRow + i,
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390 gvalue = r.data[groupField];
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392 g = this.getGroup(gvalue, r, groupRenderer, rowIndex, colIndex, ds);
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393 if(!curGroup || curGroup.group != g){
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394 gid = gidPrefix + '-gp-' + groupField + '-' + Ext.util.Format.htmlEncode(g);
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395 // if state is defined use it, however state is in terms of expanded
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396 // so negate it, otherwise use the default.
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397 var isCollapsed = typeof this.state[gid] !== 'undefined' ? !this.state[gid] : this.startCollapsed;
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398 var gcls = isCollapsed ? 'x-grid-group-collapsed' : '';
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404 startRow: rowIndex,
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409 groups.push(curGroup);
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411 curGroup.rs.push(r);
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417 for(i = 0, len = groups.length; i < len; i++){
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419 this.doGroupStart(buf, g, cs, ds, colCount);
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420 buf[buf.length] = Ext.grid.GroupingView.superclass.doRender.call(
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421 this, cs, g.rs, ds, g.startRow, colCount, stripe);
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423 this.doGroupEnd(buf, g, cs, ds, colCount);
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425 return buf.join('');
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429 * Dynamically tries to determine the groupId of a specific value
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430 * @param {String} value
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431 * @return {String} The group id
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433 getGroupId : function(value){
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434 var gidPrefix = this.grid.getGridEl().id;
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435 var groupField = this.getGroupField();
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436 var colIndex = this.cm.findColumnIndex(groupField);
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437 var cfg = this.cm.config[colIndex];
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438 var groupRenderer = cfg.groupRenderer || cfg.renderer;
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439 var gtext = this.getGroup(value, {data:{}}, groupRenderer, 0, colIndex, this.ds);
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440 return gidPrefix + '-gp-' + groupField + '-' + Ext.util.Format.htmlEncode(value);
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444 doGroupStart : function(buf, g, cs, ds, colCount){
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445 buf[buf.length] = this.startGroup.apply(g);
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449 doGroupEnd : function(buf, g, cs, ds, colCount){
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450 buf[buf.length] = this.endGroup;
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454 getRows : function(){
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455 if(!this.enableGrouping){
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456 return Ext.grid.GroupingView.superclass.getRows.call(this);
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459 var g, gs = this.getGroups();
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460 for(var i = 0, len = gs.length; i < len; i++){
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461 g = gs[i].childNodes[1].childNodes;
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462 for(var j = 0, jlen = g.length; j < jlen; j++){
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463 r[r.length] = g[j];
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470 updateGroupWidths : function(){
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471 if(!this.enableGrouping || !this.hasRows()){
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474 var tw = Math.max(this.cm.getTotalWidth(), this.el.dom.offsetWidth-this.scrollOffset) +'px';
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475 var gs = this.getGroups();
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476 for(var i = 0, len = gs.length; i < len; i++){
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477 gs[i].firstChild.style.width = tw;
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482 onColumnWidthUpdated : function(col, w, tw){
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483 Ext.grid.GroupingView.superclass.onColumnWidthUpdated.call(this, col, w, tw);
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484 this.updateGroupWidths();
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488 onAllColumnWidthsUpdated : function(ws, tw){
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489 Ext.grid.GroupingView.superclass.onAllColumnWidthsUpdated.call(this, ws, tw);
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490 this.updateGroupWidths();
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494 onColumnHiddenUpdated : function(col, hidden, tw){
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495 Ext.grid.GroupingView.superclass.onColumnHiddenUpdated.call(this, col, hidden, tw);
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496 this.updateGroupWidths();
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500 onLayout : function(){
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501 this.updateGroupWidths();
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505 onBeforeRowSelect : function(sm, rowIndex){
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506 if(!this.enableGrouping){
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509 var row = this.getRow(rowIndex);
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510 if(row && !row.offsetParent){
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511 var g = this.findGroup(row);
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512 this.toggleGroup(g, true);
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517 Ext.grid.GroupingView.GROUP_ID = 1000;