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Struts example source code file (XhrIframeProxy.js)

This example Struts source code file (XhrIframeProxy.js) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Struts tags/keywords

content-type, content-type, xhriframeproxy, xhriframeproxy

The Struts XhrIframeProxy.js source code

/*
	Copyright (c) 2004-2006, The Dojo Foundation
	All Rights Reserved.

	Licensed under the Academic Free License version 2.1 or above OR the
	modified BSD license. For more information on Dojo licensing, see:

		http://dojotoolkit.org/community/licensing.shtml
*/



dojo.provide("dojo.io.XhrIframeProxy");
dojo.require("dojo.experimental");
dojo.experimental("dojo.io.XhrIframeProxy");
dojo.require("dojo.io.IframeIO");
dojo.require("dojo.dom");
dojo.require("dojo.uri.Uri");
dojo.io.XhrIframeProxy = {xipClientUrl:djConfig["xipClientUrl"] || dojo.uri.moduleUri("dojo.io", "xip_client.html"), _state:{}, _stateIdCounter:0, needFrameRecursion:function () {
	return (true == dojo.render.html.ie70);
}, send:function (facade) {
	var stateId = "XhrIframeProxy" + (this._stateIdCounter++);
	facade._stateId = stateId;
	var frameUrl = this.xipClientUrl + "#0:init:id=" + stateId + "&server=" + encodeURIComponent(facade._ifpServerUrl) + "&fr=false";
	if (this.needFrameRecursion()) {
		var fullClientUrl = window.location.href;
		if ((this.xipClientUrl + "").charAt(0) == "/") {
			var endIndex = fullClientUrl.indexOf("://");
			endIndex = fullClientUrl.indexOf("/", endIndex + 1);
			fullClientUrl = fullClientUrl.substring(0, endIndex);
		} else {
			fullClientUrl = fullClientUrl.substring(0, fullClientUrl.lastIndexOf("/") + 1);
		}
		fullClientUrl += this.xipClientUrl;
		var serverUrl = facade._ifpServerUrl + (facade._ifpServerUrl.indexOf("?") == -1 ? "?" : "&") + "dojo.fr=1";
		frameUrl = serverUrl + "#0:init:id=" + stateId + "&client=" + encodeURIComponent(fullClientUrl) + "&fr=" + this.needFrameRecursion();
	}
	this._state[stateId] = {facade:facade, stateId:stateId, clientFrame:dojo.io.createIFrame(stateId, "", frameUrl)};
	return stateId;
}, receive:function (stateId, urlEncodedData) {
	var response = {};
	var nvPairs = urlEncodedData.split("&");
	for (var i = 0; i < nvPairs.length; i++) {
		if (nvPairs[i]) {
			var nameValue = nvPairs[i].split("=");
			response[decodeURIComponent(nameValue[0])] = decodeURIComponent(nameValue[1]);
		}
	}
	var state = this._state[stateId];
	var facade = state.facade;
	facade._setResponseHeaders(response.responseHeaders);
	if (response.status == 0 || response.status) {
		facade.status = parseInt(response.status, 10);
	}
	if (response.statusText) {
		facade.statusText = response.statusText;
	}
	if (response.responseText) {
		facade.responseText = response.responseText;
		var contentType = facade.getResponseHeader("Content-Type");
		if (contentType && (contentType == "application/xml" || contentType == "text/xml")) {
			facade.responseXML = dojo.dom.createDocumentFromText(response.responseText, contentType);
		}
	}
	facade.readyState = 4;
	this.destroyState(stateId);
}, clientFrameLoaded:function (stateId) {
	var state = this._state[stateId];
	var facade = state.facade;
	if (this.needFrameRecursion()) {
		var clientWindow = window.open("", state.stateId + "_clientEndPoint");
	} else {
		var clientWindow = state.clientFrame.contentWindow;
	}
	var reqHeaders = [];
	for (var param in facade._requestHeaders) {
		reqHeaders.push(param + ": " + facade._requestHeaders[param]);
	}
	var requestData = {uri:facade._uri};
	if (reqHeaders.length > 0) {
		requestData.requestHeaders = reqHeaders.join("\r\n");
	}
	if (facade._method) {
		requestData.method = facade._method;
	}
	if (facade._bodyData) {
		requestData.data = facade._bodyData;
	}
	clientWindow.send(dojo.io.argsFromMap(requestData, "utf8"));
}, destroyState:function (stateId) {
	var state = this._state[stateId];
	if (state) {
		delete this._state[stateId];
		var parentNode = state.clientFrame.parentNode;
		parentNode.removeChild(state.clientFrame);
		state.clientFrame = null;
		state = null;
	}
}, createFacade:function () {
	if (arguments && arguments[0] && arguments[0]["iframeProxyUrl"]) {
		return new dojo.io.XhrIframeFacade(arguments[0]["iframeProxyUrl"]);
	} else {
		return dojo.io.XhrIframeProxy.oldGetXmlhttpObject.apply(dojo.hostenv, arguments);
	}
}};
dojo.io.XhrIframeProxy.oldGetXmlhttpObject = dojo.hostenv.getXmlhttpObject;
dojo.hostenv.getXmlhttpObject = dojo.io.XhrIframeProxy.createFacade;
dojo.io.XhrIframeFacade = function (ifpServerUrl) {
	this._requestHeaders = {};
	this._allResponseHeaders = null;
	this._responseHeaders = {};
	this._method = null;
	this._uri = null;
	this._bodyData = null;
	this.responseText = null;
	this.responseXML = null;
	this.status = null;
	this.statusText = null;
	this.readyState = 0;
	this._ifpServerUrl = ifpServerUrl;
	this._stateId = null;
};
dojo.lang.extend(dojo.io.XhrIframeFacade, {open:function (method, uri) {
	this._method = method;
	this._uri = uri;
	this.readyState = 1;
}, setRequestHeader:function (header, value) {
	this._requestHeaders[header] = value;
}, send:function (stringData) {
	this._bodyData = stringData;
	this._stateId = dojo.io.XhrIframeProxy.send(this);
	this.readyState = 2;
}, abort:function () {
	dojo.io.XhrIframeProxy.destroyState(this._stateId);
}, getAllResponseHeaders:function () {
	return this._allResponseHeaders;
}, getResponseHeader:function (header) {
	return this._responseHeaders[header];
}, _setResponseHeaders:function (allHeaders) {
	if (allHeaders) {
		this._allResponseHeaders = allHeaders;
		allHeaders = allHeaders.replace(/\r/g, "");
		var nvPairs = allHeaders.split("\n");
		for (var i = 0; i < nvPairs.length; i++) {
			if (nvPairs[i]) {
				var nameValue = nvPairs[i].split(": ");
				this._responseHeaders[nameValue[0]] = nameValue[1];
			}
		}
	}
}});

Other Struts examples (source code examples)

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