X-Git-Url: http://git.ithinksw.org/extjs.git/blobdiff_plain/ee06f37b0f6f6d94cd05a6ffae556660f7c4a2bc..c930e9176a5a85509c5b0230e2bff5c22a591432:/src/widgets/list/Sorter.js

diff --git a/src/widgets/list/Sorter.js b/src/widgets/list/Sorter.js
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+++ b/src/widgets/list/Sorter.js
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+/*!
+ * Ext JS Library 3.0.0
+ * Copyright(c) 2006-2009 Ext JS, LLC
+ * licensing@extjs.com
+ * http://www.extjs.com/license
+ */
+/**
+ * @class Ext.ListView.Sorter
+ * @extends Ext.util.Observable
+ * <p>Supporting Class for Ext.ListView.</p>
+ * @constructor
+ * @param {Object} config
+ */
+Ext.ListView.Sorter = Ext.extend(Ext.util.Observable, {
+    /**
+     * @cfg {Array} sortClasses
+     * The CSS classes applied to a header when it is sorted. (defaults to <tt>["sort-asc", "sort-desc"]</tt>)
+     */
+    sortClasses : ["sort-asc", "sort-desc"],
+
+    constructor: function(config){
+        Ext.apply(this, config);
+        Ext.ListView.Sorter.superclass.constructor.call(this);
+    },
+
+    init : function(listView){
+        this.view = listView;
+        listView.on('render', this.initEvents, this);
+    },
+
+    initEvents : function(view){
+        view.mon(view.innerHd, 'click', this.onHdClick, this);
+        view.innerHd.setStyle('cursor', 'pointer');
+        view.mon(view.store, 'datachanged', this.updateSortState, this);
+        this.updateSortState.defer(10, this, [view.store]);
+    },
+
+    updateSortState : function(store){
+        var state = store.getSortState();
+        if(!state){
+            return;
+        }
+        this.sortState = state;
+        var cs = this.view.columns, sortColumn = -1;
+        for(var i = 0, len = cs.length; i < len; i++){
+            if(cs[i].dataIndex == state.field){
+                sortColumn = i;
+                break;
+            }
+        }
+        if(sortColumn != -1){
+            var sortDir = state.direction;
+            this.updateSortIcon(sortColumn, sortDir);
+        }
+    },
+
+    updateSortIcon : function(col, dir){
+        var sc = this.sortClasses;
+        var hds = this.view.innerHd.select('em').removeClass(sc);
+        hds.item(col).addClass(sc[dir == "DESC" ? 1 : 0]);
+    },
+
+    onHdClick : function(e){
+        var hd = e.getTarget('em', 3);
+        if(hd && !this.view.disableHeaders){
+            var index = this.view.findHeaderIndex(hd);
+            this.view.store.sort(this.view.columns[index].dataIndex);
+        }
+    }
+});
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