3 <title>The source code</title>
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8 <pre class="prettyprint lang-js"><div id="cls-Ext.ListView.Sorter"></div>/**
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9 * @class Ext.ListView.Sorter
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10 * @extends Ext.util.Observable
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11 * <p>Supporting Class for Ext.ListView.</p>
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13 * @param {Object} config
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15 Ext.ListView.Sorter = Ext.extend(Ext.util.Observable, {
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16 <div id="cfg-Ext.ListView.Sorter-sortClasses"></div>/**
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17 * @cfg {Array} sortClasses
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18 * The CSS classes applied to a header when it is sorted. (defaults to <tt>["sort-asc", "sort-desc"]</tt>)
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20 sortClasses : ["sort-asc", "sort-desc"],
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22 constructor: function(config){
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23 Ext.apply(this, config);
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24 Ext.ListView.Sorter.superclass.constructor.call(this);
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27 init : function(listView){
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28 this.view = listView;
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29 listView.on('render', this.initEvents, this);
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32 initEvents : function(view){
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33 view.mon(view.innerHd, 'click', this.onHdClick, this);
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34 view.innerHd.setStyle('cursor', 'pointer');
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35 view.mon(view.store, 'datachanged', this.updateSortState, this);
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36 this.updateSortState.defer(10, this, [view.store]);
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39 updateSortState : function(store){
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40 var state = store.getSortState();
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44 this.sortState = state;
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45 var cs = this.view.columns, sortColumn = -1;
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46 for(var i = 0, len = cs.length; i < len; i++){
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47 if(cs[i].dataIndex == state.field){
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52 if(sortColumn != -1){
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53 var sortDir = state.direction;
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54 this.updateSortIcon(sortColumn, sortDir);
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58 updateSortIcon : function(col, dir){
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59 var sc = this.sortClasses;
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60 var hds = this.view.innerHd.select('em').removeClass(sc);
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61 hds.item(col).addClass(sc[dir == "DESC" ? 1 : 0]);
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64 onHdClick : function(e){
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65 var hd = e.getTarget('em', 3);
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66 if(hd && !this.view.disableHeaders){
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67 var index = this.view.findHeaderIndex(hd);
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68 this.view.store.sort(this.view.columns[index].dataIndex);
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