/*!
 * Ext JS Library 3.3.0
 * Copyright(c) 2006-2010 Ext JS, Inc.
 * licensing@extjs.com
 * http://www.extjs.com/license
 */

/* Fix for Opera, which does not seem to include the map function on Array's */
if (!Array.prototype.map) {
    Array.prototype.map = function(fun){
        var len = this.length;
        if (typeof fun != 'function') {
            throw new TypeError();
        }
        var res = new Array(len);
        var thisp = arguments[1];
        for (var i = 0; i < len; i++) {
            if (i in this) {
                res[i] = fun.call(thisp, this[i], i, this);
            }
        }
        return res;
    };
}

Ext.ns('Ext.ux.data');

/** * @class Ext.ux.data.PagingMemoryProxy * @extends Ext.data.MemoryProxy *

Paging Memory Proxy, allows to use paging grid with in memory dataset

*/ Ext.ux.data.PagingMemoryProxy = Ext.extend(Ext.data.MemoryProxy, { constructor : function(data){ Ext.ux.data.PagingMemoryProxy.superclass.constructor.call(this); this.data = data; }, doRequest : function(action, rs, params, reader, callback, scope, options){ params = params || {}; var result; try { result = reader.readRecords(this.data); } catch (e) { this.fireEvent('loadexception', this, options, null, e); callback.call(scope, null, options, false); return; } // filtering if (params.filter !== undefined) { result.records = result.records.filter(function(el){ if (typeof(el) == 'object') { var att = params.filterCol || 0; return String(el.data[att]).match(params.filter) ? true : false; } else { return String(el).match(params.filter) ? true : false; } }); result.totalRecords = result.records.length; } // sorting if (params.sort !== undefined) { // use integer as params.sort to specify column, since arrays are not named // params.sort=0; would also match a array without columns var dir = String(params.dir).toUpperCase() == 'DESC' ? -1 : 1; var fn = function(v1, v2){ return v1 > v2 ? 1 : (v1 < v2 ? -1 : 0); }; result.records.sort(function(a, b){ var v = 0; if (typeof(a) == 'object') { v = fn(a.data[params.sort], b.data[params.sort]) * dir; } else { v = fn(a, b) * dir; } if (v == 0) { v = (a.index < b.index ? -1 : 1); } return v; }); } // paging (use undefined cause start can also be 0 (thus false)) if (params.start !== undefined && params.limit !== undefined) { result.records = result.records.slice(params.start, params.start + params.limit); } callback.call(scope, result, options, true); } }); //backwards compat. Ext.data.PagingMemoryProxy = Ext.ux.data.PagingMemoryProxy;