3 * Copyright(c) 2006-2010 Sencha Inc.
5 * http://www.sencha.com/license
8 * @class Ext.grid.GroupingView
9 * @extends Ext.grid.GridView
10 * Adds the ability for single level grouping to the grid. A {@link Ext.data.GroupingStore GroupingStore}
11 * must be used to enable grouping. Some grouping characteristics may also be configured at the
12 * {@link Ext.grid.Column Column level}<div class="mdetail-params"><ul>
13 * <li><code>{@link Ext.grid.Column#emptyGroupText emptyGroupText}</code></li>
14 * <li><code>{@link Ext.grid.Column#groupable groupable}</code></li>
15 * <li><code>{@link Ext.grid.Column#groupName groupName}</code></li>
16 * <li><code>{@link Ext.grid.Column#groupRender groupRender}</code></li>
18 * <p>Sample usage:</p>
20 var grid = new Ext.grid.GridPanel({
21 // A groupingStore is required for a GroupingView
22 store: new {@link Ext.data.GroupingStore}({
26 sortInfo: {field: 'company', direction: 'ASC'},
27 {@link Ext.data.GroupingStore#groupOnSort groupOnSort}: true,
28 {@link Ext.data.GroupingStore#remoteGroup remoteGroup}: true,
29 {@link Ext.data.GroupingStore#groupField groupField}: 'industry'
31 colModel: new {@link Ext.grid.ColumnModel}({
33 {id:'company',header: 'Company', width: 60, dataIndex: 'company'},
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
35 {header: 'Price', renderer: Ext.util.Format.usMoney, dataIndex: 'price', {@link Ext.grid.Column#groupable groupable}: false},
36 {header: 'Change', dataIndex: 'change', renderer: Ext.util.Format.usMoney},
37 {header: 'Industry', dataIndex: 'industry'},
38 {header: 'Last Updated', renderer: Ext.util.Format.dateRenderer('m/d/Y'), dataIndex: 'lastChange'}
47 view: new Ext.grid.GroupingView({
48 {@link Ext.grid.GridView#forceFit forceFit}: true,
49 // custom grouping text template to display the number of items per group
50 {@link #groupTextTpl}: '{text} ({[values.rs.length]} {[values.rs.length > 1 ? "Items" : "Item"]})'
58 title: 'Grouping Example',
60 renderTo: document.body
64 * @param {Object} config
66 Ext.grid.GroupingView = Ext.extend(Ext.grid.GridView, {
69 * @cfg {String} groupByText Text displayed in the grid header menu for grouping by a column
70 * (defaults to 'Group By This Field').
72 groupByText : 'Group By This Field',
74 * @cfg {String} showGroupsText Text displayed in the grid header for enabling/disabling grouping
75 * (defaults to 'Show in Groups').
77 showGroupsText : 'Show in Groups',
79 * @cfg {Boolean} hideGroupedColumn <tt>true</tt> to hide the column that is currently grouped (defaults to <tt>false</tt>)
81 hideGroupedColumn : false,
83 * @cfg {Boolean} showGroupName If <tt>true</tt> will display a prefix plus a ': ' before the group field value
84 * in the group header line. The prefix will consist of the <tt><b>{@link Ext.grid.Column#groupName groupName}</b></tt>
85 * (or the configured <tt><b>{@link Ext.grid.Column#header header}</b></tt> if not provided) configured in the
86 * {@link Ext.grid.Column} for each set of grouped rows (defaults to <tt>true</tt>).
90 * @cfg {Boolean} startCollapsed <tt>true</tt> to start all groups collapsed (defaults to <tt>false</tt>)
92 startCollapsed : false,
94 * @cfg {Boolean} enableGrouping <tt>false</tt> to disable grouping functionality (defaults to <tt>true</tt>)
96 enableGrouping : true,
98 * @cfg {Boolean} enableGroupingMenu <tt>true</tt> to enable the grouping control in the column menu (defaults to <tt>true</tt>)
100 enableGroupingMenu : true,
102 * @cfg {Boolean} enableNoGroups <tt>true</tt> to allow the user to turn off grouping (defaults to <tt>true</tt>)
104 enableNoGroups : true,
106 * @cfg {String} emptyGroupText The text to display when there is an empty group value (defaults to <tt>'(None)'</tt>).
107 * May also be specified per column, see {@link Ext.grid.Column}.{@link Ext.grid.Column#emptyGroupText emptyGroupText}.
109 emptyGroupText : '(None)',
111 * @cfg {Boolean} ignoreAdd <tt>true</tt> to skip refreshing the view when new rows are added (defaults to <tt>false</tt>)
115 * @cfg {String} groupTextTpl The template used to render the group header (defaults to <tt>'{text}'</tt>).
116 * This is used to format an object which contains the following properties:
117 * <div class="mdetail-params"><ul>
118 * <li><b>group</b> : String<p class="sub-desc">The <i>rendered</i> value of the group field.
119 * By default this is the unchanged value of the group field. If a <tt><b>{@link Ext.grid.Column#groupRenderer groupRenderer}</b></tt>
120 * is specified, it is the result of a call to that function.</p></li>
121 * <li><b>gvalue</b> : Object<p class="sub-desc">The <i>raw</i> value of the group field.</p></li>
122 * <li><b>text</b> : String<p class="sub-desc">The configured header (as described in <tt>{@link #showGroupName})</tt>
123 * if <tt>{@link #showGroupName}</tt> is <tt>true</tt>) plus the <i>rendered</i> group field value.</p></li>
124 * <li><b>groupId</b> : String<p class="sub-desc">A unique, generated ID which is applied to the
125 * View Element which contains the group.</p></li>
126 * <li><b>startRow</b> : Number<p class="sub-desc">The row index of the Record which caused group change.</p></li>
127 * <li><b>rs</b> : Array<p class="sub-desc">Contains a single element: The Record providing the data
128 * for the row which caused group change.</p></li>
129 * <li><b>cls</b> : String<p class="sub-desc">The generated class name string to apply to the group header Element.</p></li>
130 * <li><b>style</b> : String<p class="sub-desc">The inline style rules to apply to the group header Element.</p></li>
132 * See {@link Ext.XTemplate} for information on how to format data using a template. Possible usage:<pre><code>
133 var grid = new Ext.grid.GridPanel({
135 view: new Ext.grid.GroupingView({
136 groupTextTpl: '{text} ({[values.rs.length]} {[values.rs.length > 1 ? "Items" : "Item"]})'
141 groupTextTpl : '{text}',
144 * @cfg {String} groupMode Indicates how to construct the group identifier. <tt>'value'</tt> constructs the id using
145 * raw value, <tt>'display'</tt> constructs the id using the rendered value. Defaults to <tt>'value'</tt>.
150 * @cfg {Function} groupRenderer This property must be configured in the {@link Ext.grid.Column} for
155 * @cfg {Boolean} cancelEditOnToggle True to cancel any editing when the group header is toggled. Defaults to <tt>true</tt>.
157 cancelEditOnToggle: true,
160 initTemplates : function(){
161 Ext.grid.GroupingView.superclass.initTemplates.call(this);
164 var sm = this.grid.getSelectionModel();
165 sm.on(sm.selectRow ? 'beforerowselect' : 'beforecellselect',
166 this.onBeforeRowSelect, this);
168 if(!this.startGroup){
169 this.startGroup = new Ext.XTemplate(
170 '<div id="{groupId}" class="x-grid-group {cls}">',
171 '<div id="{groupId}-hd" class="x-grid-group-hd" style="{style}"><div class="x-grid-group-title">', this.groupTextTpl ,'</div></div>',
172 '<div id="{groupId}-bd" class="x-grid-group-body">'
175 this.startGroup.compile();
177 if (!this.endGroup) {
178 this.endGroup = '</div></div>';
183 findGroup : function(el){
184 return Ext.fly(el).up('.x-grid-group', this.mainBody.dom);
188 getGroups : function(){
189 return this.hasRows() ? this.mainBody.dom.childNodes : [];
193 onAdd : function(ds, records, index) {
194 if (this.canGroup() && !this.ignoreAdd) {
195 var ss = this.getScrollState();
196 this.fireEvent('beforerowsinserted', ds, index, index + (records.length-1));
198 this.restoreScroll(ss);
199 this.fireEvent('rowsinserted', ds, index, index + (records.length-1));
200 } else if (!this.canGroup()) {
201 Ext.grid.GroupingView.superclass.onAdd.apply(this, arguments);
206 onRemove : function(ds, record, index, isUpdate){
207 Ext.grid.GroupingView.superclass.onRemove.apply(this, arguments);
208 var g = document.getElementById(record._groupId);
209 if(g && g.childNodes[1].childNodes.length < 1){
212 this.applyEmptyText();
216 refreshRow : function(record){
217 if(this.ds.getCount()==1){
220 this.isUpdating = true;
221 Ext.grid.GroupingView.superclass.refreshRow.apply(this, arguments);
222 this.isUpdating = false;
227 beforeMenuShow : function(){
228 var item, items = this.hmenu.items, disabled = this.cm.config[this.hdCtxIndex].groupable === false;
229 if((item = items.get('groupBy'))){
230 item.setDisabled(disabled);
232 if((item = items.get('showGroups'))){
233 item.setDisabled(disabled);
234 item.setChecked(this.canGroup(), true);
239 renderUI : function(){
240 var markup = Ext.grid.GroupingView.superclass.renderUI.call(this);
242 if(this.enableGroupingMenu && this.hmenu){
245 text: this.groupByText,
246 handler: this.onGroupByClick,
248 iconCls:'x-group-by-icon'
250 if(this.enableNoGroups){
253 text: this.showGroupsText,
255 checkHandler: this.onShowGroupsClick,
259 this.hmenu.on('beforeshow', this.beforeMenuShow, this);
264 processEvent: function(name, e){
265 Ext.grid.GroupingView.superclass.processEvent.call(this, name, e);
266 var hd = e.getTarget('.x-grid-group-hd', this.mainBody);
268 // group value is at the end of the string
269 var field = this.getGroupField(),
270 prefix = this.getPrefix(field),
271 groupValue = hd.id.substring(prefix.length),
272 emptyRe = new RegExp('gp-' + Ext.escapeRe(field) + '--hd');
274 // remove trailing '-hd'
275 groupValue = groupValue.substr(0, groupValue.length - 3);
277 // also need to check for empty groups
278 if(groupValue || emptyRe.test(hd.id)){
279 this.grid.fireEvent('group' + name, this.grid, field, groupValue, e);
281 if(name == 'mousedown' && e.button == 0){
282 this.toggleGroup(hd.parentNode);
289 onGroupByClick : function(){
290 var grid = this.grid;
291 this.enableGrouping = true;
292 grid.store.groupBy(this.cm.getDataIndex(this.hdCtxIndex));
293 grid.fireEvent('groupchange', grid, grid.store.getGroupState());
294 this.beforeMenuShow(); // Make sure the checkboxes get properly set when changing groups
299 onShowGroupsClick : function(mi, checked){
300 this.enableGrouping = checked;
302 this.onGroupByClick();
304 this.grid.store.clearGrouping();
305 this.grid.fireEvent('groupchange', this, null);
310 * Toggle the group that contains the specific row.
311 * @param {Number} rowIndex The row inside the group
312 * @param {Boolean} expanded (optional)
314 toggleRowIndex : function(rowIndex, expanded){
315 if(!this.canGroup()){
318 var row = this.getRow(rowIndex);
320 this.toggleGroup(this.findGroup(row), expanded);
325 * Toggles the specified group if no value is passed, otherwise sets the expanded state of the group to the value passed.
326 * @param {String} groupId The groupId assigned to the group (see getGroupId)
327 * @param {Boolean} expanded (optional)
329 toggleGroup : function(group, expanded){
330 var gel = Ext.get(group);
331 expanded = Ext.isDefined(expanded) ? expanded : gel.hasClass('x-grid-group-collapsed');
332 if(this.state[gel.id] !== expanded){
333 if (this.cancelEditOnToggle !== false) {
334 this.grid.stopEditing(true);
336 this.state[gel.id] = expanded;
337 gel[expanded ? 'removeClass' : 'addClass']('x-grid-group-collapsed');
342 * Toggles all groups if no value is passed, otherwise sets the expanded state of all groups to the value passed.
343 * @param {Boolean} expanded (optional)
345 toggleAllGroups : function(expanded){
346 var groups = this.getGroups();
347 for(var i = 0, len = groups.length; i < len; i++){
348 this.toggleGroup(groups[i], expanded);
353 * Expands all grouped rows.
355 expandAllGroups : function(){
356 this.toggleAllGroups(true);
360 * Collapses all grouped rows.
362 collapseAllGroups : function(){
363 this.toggleAllGroups(false);
367 getGroup : function(v, r, groupRenderer, rowIndex, colIndex, ds){
368 var column = this.cm.config[colIndex],
369 g = groupRenderer ? groupRenderer.call(column.scope, v, {}, r, rowIndex, colIndex, ds) : String(v);
370 if(g === '' || g === ' '){
371 g = column.emptyGroupText || this.emptyGroupText;
377 getGroupField : function(){
378 return this.grid.store.getGroupState();
382 afterRender : function(){
383 if(!this.ds || !this.cm){
386 Ext.grid.GroupingView.superclass.afterRender.call(this);
387 if(this.grid.deferRowRender){
388 this.updateGroupWidths();
392 afterRenderUI: function () {
393 Ext.grid.GroupingView.superclass.afterRenderUI.call(this);
395 if (this.enableGroupingMenu && this.hmenu) {
398 text: this.groupByText,
399 handler: this.onGroupByClick,
401 iconCls:'x-group-by-icon'
404 if (this.enableNoGroups) {
407 text: this.showGroupsText,
409 checkHandler: this.onShowGroupsClick,
414 this.hmenu.on('beforeshow', this.beforeMenuShow, this);
419 renderRows : function(){
420 var groupField = this.getGroupField();
421 var eg = !!groupField;
422 // if they turned off grouping and the last grouped field is hidden
423 if(this.hideGroupedColumn) {
424 var colIndex = this.cm.findColumnIndex(groupField),
425 hasLastGroupField = Ext.isDefined(this.lastGroupField);
426 if(!eg && hasLastGroupField){
427 this.mainBody.update('');
428 this.cm.setHidden(this.cm.findColumnIndex(this.lastGroupField), false);
429 delete this.lastGroupField;
430 }else if (eg && !hasLastGroupField){
431 this.lastGroupField = groupField;
432 this.cm.setHidden(colIndex, true);
433 }else if (eg && hasLastGroupField && groupField !== this.lastGroupField) {
434 this.mainBody.update('');
435 var oldIndex = this.cm.findColumnIndex(this.lastGroupField);
436 this.cm.setHidden(oldIndex, false);
437 this.lastGroupField = groupField;
438 this.cm.setHidden(colIndex, true);
441 return Ext.grid.GroupingView.superclass.renderRows.apply(
446 doRender : function(cs, rs, ds, startRow, colCount, stripe){
451 if(!this.canGroup() || this.isUpdating){
452 return Ext.grid.GroupingView.superclass.doRender.apply(this, arguments);
455 var groupField = this.getGroupField(),
456 colIndex = this.cm.findColumnIndex(groupField),
458 gstyle = 'width:' + this.getTotalWidth() + ';',
459 cfg = this.cm.config[colIndex],
460 groupRenderer = cfg.groupRenderer || cfg.renderer,
461 prefix = this.showGroupName ? (cfg.groupName || cfg.header)+': ' : '',
463 curGroup, i, len, gid;
465 for(i = 0, len = rs.length; i < len; i++){
466 var rowIndex = startRow + i,
468 gvalue = r.data[groupField];
470 g = this.getGroup(gvalue, r, groupRenderer, rowIndex, colIndex, ds);
471 if(!curGroup || curGroup.group != g){
472 gid = this.constructId(gvalue, groupField, colIndex);
473 // if state is defined use it, however state is in terms of expanded
474 // so negate it, otherwise use the default.
475 this.state[gid] = !(Ext.isDefined(this.state[gid]) ? !this.state[gid] : this.startCollapsed);
483 cls: this.state[gid] ? '' : 'x-grid-group-collapsed',
486 groups.push(curGroup);
494 for(i = 0, len = groups.length; i < len; i++){
496 this.doGroupStart(buf, g, cs, ds, colCount);
497 buf[buf.length] = Ext.grid.GroupingView.superclass.doRender.call(
498 this, cs, g.rs, ds, g.startRow, colCount, stripe);
500 this.doGroupEnd(buf, g, cs, ds, colCount);
506 * Dynamically tries to determine the groupId of a specific value
507 * @param {String} value
508 * @return {String} The group id
510 getGroupId : function(value){
511 var field = this.getGroupField();
512 return this.constructId(value, field, this.cm.findColumnIndex(field));
516 constructId : function(value, field, idx){
517 var cfg = this.cm.config[idx],
518 groupRenderer = cfg.groupRenderer || cfg.renderer,
519 val = (this.groupMode == 'value') ? value : this.getGroup(value, {data:{}}, groupRenderer, 0, idx, this.ds);
521 return this.getPrefix(field) + Ext.util.Format.htmlEncode(val);
525 canGroup : function(){
526 return this.enableGrouping && !!this.getGroupField();
530 getPrefix: function(field){
531 return this.grid.getGridEl().id + '-gp-' + field + '-';
535 doGroupStart : function(buf, g, cs, ds, colCount){
536 buf[buf.length] = this.startGroup.apply(g);
540 doGroupEnd : function(buf, g, cs, ds, colCount){
541 buf[buf.length] = this.endGroup;
545 getRows : function(){
546 if(!this.canGroup()){
547 return Ext.grid.GroupingView.superclass.getRows.call(this);
550 gs = this.getGroups(),
557 g = gs[i].childNodes[1];
560 for(j = 0, jlen = g.length; j < jlen; ++j){
569 updateGroupWidths : function(){
570 if(!this.canGroup() || !this.hasRows()){
573 var tw = Math.max(this.cm.getTotalWidth(), this.el.dom.offsetWidth-this.getScrollOffset()) +'px';
574 var gs = this.getGroups();
575 for(var i = 0, len = gs.length; i < len; i++){
576 gs[i].firstChild.style.width = tw;
581 onColumnWidthUpdated : function(col, w, tw){
582 Ext.grid.GroupingView.superclass.onColumnWidthUpdated.call(this, col, w, tw);
583 this.updateGroupWidths();
587 onAllColumnWidthsUpdated : function(ws, tw){
588 Ext.grid.GroupingView.superclass.onAllColumnWidthsUpdated.call(this, ws, tw);
589 this.updateGroupWidths();
593 onColumnHiddenUpdated : function(col, hidden, tw){
594 Ext.grid.GroupingView.superclass.onColumnHiddenUpdated.call(this, col, hidden, tw);
595 this.updateGroupWidths();
599 onLayout : function(){
600 this.updateGroupWidths();
604 onBeforeRowSelect : function(sm, rowIndex){
605 this.toggleRowIndex(rowIndex, true);
609 Ext.grid.GroupingView.GROUP_ID = 1000;