GZ/nwyj/.svn/pristine/1e/1ecbafe82c5850ecc2971a421faa1d3cebece0b8.svn-base

/*
 * Ext JS Library 2.0 Copyright(c) 2006-2007, Ext JS, LLC. licensing@extjs.com
 * 
 * http://extjs.com/license
 */

Ext.data.Connection = function(A) {
	Ext.apply(this, A);
	this.addEvents("beforerequest", "requestcomplete", "requestexception");
	Ext.data.Connection.superclass.constructor.call(this)
};
Ext.extend(Ext.data.Connection, Ext.util.Observable, {
			timeout : 30000,
			autoAbort : false,
			disableCaching : true,
			request : function(E) {
				if (this.fireEvent("beforerequest", this, E) !== false) {
					var C = E.params;
					if (typeof C == "function") {
						C = C.call(E.scope || window, E)
					}
					if (typeof C == "object") {
						C = Ext.urlEncode(C)
					}
					if (this.extraParams) {
						var G = Ext.urlEncode(this.extraParams);
						C = C ? (C + "&" + G) : G
					}
					var B = E.url || this.url;
					if (typeof B == "function") {
						B = B.call(E.scope || window, E)
					}
					if (E.form) {
						var D = Ext.getDom(E.form);
						B = B || D.action;
						var I = D.getAttribute("enctype");
						if (E.isUpload
								|| (I && I.toLowerCase() == "multipart/form-data")) {
							return this.doFormUpload(E, C, B)
						}
						var H = Ext.lib.Ajax.serializeForm(D);
						C = C ? (C + "&" + H) : H
					}
					var J = E.headers;
					if (this.defaultHeaders) {
						J = Ext.apply(J || {}, this.defaultHeaders);
						if (!E.headers) {
							E.headers = J
						}
					}
					var F = {
						success : this.handleResponse,
						failure : this.handleFailure,
						scope : this,
						argument : {
							options : E
						},
						timeout : this.timeout
					};
					var A = E.method || this.method || (C ? "POST" : "GET");
					if (A == "GET"
							&& (this.disableCaching && E.disableCaching !== false)
							|| E.disableCaching === true) {
						B += (B.indexOf("?") != -1 ? "&" : "?") + "_dc="
								+ (allGetServerTime().getTime())
					}
					if (typeof E.autoAbort == "boolean") {
						if (E.autoAbort) {
							this.abort()
						}
					} else {
						if (this.autoAbort !== false) {
							this.abort()
						}
					}
					if ((A == "GET" && C) || E.xmlData || E.jsonData) {
						B += (B.indexOf("?") != -1 ? "&" : "?") + C;
						C = ""
					}
					this.transId = Ext.lib.Ajax.request(A, B, F, C, E);
					return this.transId
				} else {
					Ext.callback(E.callback, E.scope, [E, null, null]);
					return null
				}
			},
			isLoading : function(A) {
				if (A) {
					return Ext.lib.Ajax.isCallInProgress(A)
				} else {
					return this.transId ? true : false
				}
			},
			abort : function(A) {
				if (A || this.isLoading()) {
					Ext.lib.Ajax.abort(A || this.transId)
				}
			},
			handleResponse : function(A) {
				this.transId = false;
				var B = A.argument.options;
				A.argument = B ? B.argument : null;
				this.fireEvent("requestcomplete", this, A, B);
				Ext.callback(B.success, B.scope, [A, B]);
				Ext.callback(B.callback, B.scope, [B, true, A])
			},
			handleFailure : function(A, C) {
				this.transId = false;
				var B = A.argument.options;
				A.argument = B ? B.argument : null;
				this.fireEvent("requestexception", this, A, B, C);
				Ext.callback(B.failure, B.scope, [A, B]);
				Ext.callback(B.callback, B.scope, [B, false, A])
			},
			doFormUpload : function(E, A, B) {
				var C = Ext.id();
				var F = document.createElement("iframe");
				F.id = C;
				F.name = C;
				F.className = "x-hidden";
				if (Ext.isIE) {
					F.src = Ext.SSL_SECURE_URL
				}
				document.body.appendChild(F);
				if (Ext.isIE) {
					document.frames[C].name = C
				}
				var D = Ext.getDom(E.form);
				D.target = C;
				D.method = "POST";
				D.enctype = D.encoding = "multipart/form-data";
				if (B) {
					D.action = B
				}
				var L, J;
				if (A) {
					L = [];
					A = Ext.urlDecode(A, false);
					for (var H in A) {
						if (A.hasOwnProperty(H)) {
							J = document.createElement("input");
							J.type = "hidden";
							J.name = H;
							J.value = A[H];
							D.appendChild(J);
							L.push(J)
						}
					}
				}
				function G() {
					var M = {
						responseText : "",
						responseXML : null
					};
					M.argument = E ? E.argument : null;
					try {
						var O;
						if (Ext.isIE) {
							O = F.contentWindow.document
						} else {
							O = (F.contentDocument || window.frames[C].document)
						}
						if (O && O.body) {
							M.responseText = O.body.innerHTML
						}
						if (O && O.XMLDocument) {
							M.responseXML = O.XMLDocument
						} else {
							M.responseXML = O
						}
					} catch (N) {
					}
					Ext.EventManager.removeListener(F, "load", G, this);
					this.fireEvent("requestcomplete", this, M, E);
					Ext.callback(E.success, E.scope, [M, E]);
					Ext.callback(E.callback, E.scope, [E, true, M]);
					setTimeout(function() {
								Ext.removeNode(F)
							}, 100)
				}
				Ext.EventManager.on(F, "load", G, this);
				D.submit();
				if (L) {
					for (var I = 0, K = L.length; I < K; I++) {
						Ext.removeNode(L[I])
					}
				}
			}
		});
Ext.Ajax = new Ext.data.Connection({
			autoAbort : false,
			serializeForm : function(A) {
				return Ext.lib.Ajax.serializeForm(A)
			}
		});