[619] | 1 | /* |
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| 2 | * Ext JS Library 2.2.1 |
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| 3 | * Copyright(c) 2006-2009, Ext JS, LLC. |
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| 4 | * licensing@extjs.com |
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| 5 | * |
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| 6 | * http://extjs.com/license |
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| 7 | */ |
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| 8 | |
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| 9 | /* Fix for Opera, which does not seem to include the map function on Array's */ |
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| 10 | if(!Array.prototype.map){ |
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| 11 | Array.prototype.map = function(fun){ |
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| 12 | var len = this.length; |
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| 13 | if(typeof fun != "function"){ |
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| 14 | throw new TypeError(); |
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| 15 | } |
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| 16 | var res = new Array(len); |
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| 17 | var thisp = arguments[1]; |
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| 18 | for(var i = 0; i < len; i++){ |
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| 19 | if(i in this){ |
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| 20 | res[i] = fun.call(thisp, this[i], i, this); |
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| 21 | } |
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| 22 | } |
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| 23 | return res; |
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| 24 | }; |
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| 25 | } |
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| 26 | |
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| 27 | /* Paging Memory Proxy, allows to use paging grid with in memory dataset */ |
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| 28 | Ext.data.PagingMemoryProxy = function(data) { |
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| 29 | Ext.data.PagingMemoryProxy.superclass.constructor.call(this); |
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| 30 | this.data = data; |
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| 31 | }; |
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| 32 | |
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| 33 | Ext.extend(Ext.data.PagingMemoryProxy, Ext.data.MemoryProxy, { |
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| 34 | load : function(params, reader, callback, scope, arg) { |
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| 35 | params = params || {}; |
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| 36 | var result; |
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| 37 | try { |
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| 38 | result = reader.readRecords(this.data); |
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| 39 | }catch(e){ |
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| 40 | this.fireEvent("loadexception", this, arg, null, e); |
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| 41 | callback.call(scope, null, arg, false); |
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| 42 | return; |
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| 43 | } |
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| 44 | |
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| 45 | // filtering |
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| 46 | if (params.filter!==undefined) { |
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| 47 | result.records = result.records.filter(function(el){ |
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| 48 | if (typeof(el)=="object"){ |
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| 49 | var att = params.filterCol || 0; |
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| 50 | return String(el.data[att]).match(params.filter)?true:false; |
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| 51 | } else { |
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| 52 | return String(el).match(params.filter)?true:false; |
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| 53 | } |
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| 54 | }); |
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| 55 | result.totalRecords = result.records.length; |
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| 56 | } |
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| 57 | |
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| 58 | // sorting |
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| 59 | if (params.sort!==undefined) { |
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| 60 | // use integer as params.sort to specify column, since arrays are not named |
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| 61 | // params.sort=0; would also match a array without columns |
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| 62 | var dir = String(params.dir).toUpperCase() == "DESC" ? -1 : 1; |
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| 63 | var fn = function(v1, v2){ |
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| 64 | return v1 > v2 ? 1 : (v1 < v2 ? -1 : 0); |
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| 65 | }; |
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| 66 | result.records.sort(function(a, b) { |
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| 67 | var v = 0; |
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| 68 | if (typeof(a)=="object"){ |
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| 69 | v = fn(a.data[params.sort], b.data[params.sort]) * dir; |
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| 70 | } else { |
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| 71 | v = fn(a, b) * dir; |
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| 72 | } |
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| 73 | if (v==0) { |
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| 74 | v = (a.index < b.index ? -1 : 1); |
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| 75 | } |
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| 76 | return v; |
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| 77 | }); |
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| 78 | } |
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| 79 | |
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| 80 | // paging (use undefined cause start can also be 0 (thus false)) |
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| 81 | if (params.start!==undefined && params.limit!==undefined) { |
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| 82 | result.records = result.records.slice(params.start, params.start+params.limit); |
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| 83 | } |
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| 84 | |
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| 85 | callback.call(scope, result, arg, true); |
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| 86 | } |
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| 87 | }); |
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