Subversion Repositories Applications.papyrus

/*

	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.IframeIO");

dojo.require("dojo.io.BrowserIO");

dojo.require("dojo.uri.*");

dojo.io.createIFrame = function (fname, onloadstr, uri) {

	if (window[fname]) {

		return window[fname];

	}

	if (window.frames[fname]) {

		return window.frames[fname];

	}

	var r = dojo.render.html;

	var cframe = null;

	var turi = uri;

	if (!turi) {

		if (djConfig["useXDomain"] && !djConfig["dojoIframeHistoryUrl"]) {

			dojo.debug("dojo.io.createIFrame: When using cross-domain Dojo builds," + " please save iframe_history.html to your domain and set djConfig.dojoIframeHistoryUrl" + " to the path on your domain to iframe_history.html");

		}

		turi = (djConfig["dojoIframeHistoryUrl"] || dojo.uri.moduleUri("dojo", "../iframe_history.html")) + "#noInit=true";

	}

	var ifrstr = ((r.ie) && (dojo.render.os.win)) ? "<iframe name=\"" + fname + "\" src=\"" + turi + "\" onload=\"" + onloadstr + "\">" : "iframe";

	cframe = document.createElement(ifrstr);

	with (cframe) {

		name = fname;

		setAttribute("name", fname);

		id = fname;

	}

	dojo.body().appendChild(cframe);

	window[fname] = cframe;

	with (cframe.style) {

		if (!r.safari) {

			position = "absolute";

		}

		left = top = "0px";

		height = width = "1px";

		visibility = "hidden";

	}

	if (!r.ie) {

		dojo.io.setIFrameSrc(cframe, turi, true);

		cframe.onload = new Function(onloadstr);

	}

	return cframe;

};

dojo.io.IframeTransport = new function () {

	var _this = this;

	this.currentRequest = null;

	this.requestQueue = [];

	this.iframeName = "dojoIoIframe";

	this.fireNextRequest = function () {

		try {

			if ((this.currentRequest) || (this.requestQueue.length == 0)) {

				return;

			}

			var cr = this.currentRequest = this.requestQueue.shift();

			cr._contentToClean = [];

			var fn = cr["formNode"];

			var content = cr["content"] || {};

			if (cr.sendTransport) {

				content["dojo.transport"] = "iframe";

			}

			if (fn) {

				if (content) {

					for (var x in content) {

						if (!fn[x]) {

							var tn;

							if (dojo.render.html.ie) {

								tn = document.createElement("<input type='hidden' name='" + x + "' value='" + content[x] + "'>");

								fn.appendChild(tn);

							} else {

								tn = document.createElement("input");

								fn.appendChild(tn);

								tn.type = "hidden";

								tn.name = x;

								tn.value = content[x];

							}

							cr._contentToClean.push(x);

						} else {

							fn[x].value = content[x];

						}

					}

				}

				if (cr["url"]) {

					cr._originalAction = fn.getAttribute("action");

					fn.setAttribute("action", cr.url);

				}

				if (!fn.getAttribute("method")) {

					fn.setAttribute("method", (cr["method"]) ? cr["method"] : "post");

				}

				cr._originalTarget = fn.getAttribute("target");

				fn.setAttribute("target", this.iframeName);

				fn.target = this.iframeName;

				fn.submit();

			} else {

				var query = dojo.io.argsFromMap(this.currentRequest.content);

				var tmpUrl = cr.url + (cr.url.indexOf("?") > -1 ? "&" : "?") + query;

				dojo.io.setIFrameSrc(this.iframe, tmpUrl, true);

			}

		}

		catch (e) {

			this.iframeOnload(e);

		}

	};

	this.canHandle = function (kwArgs) {

		return ((dojo.lang.inArray(["text/plain", "text/html", "text/javascript", "text/json", "application/json"], kwArgs["mimetype"])) && (dojo.lang.inArray(["post", "get"], kwArgs["method"].toLowerCase())) && (!((kwArgs["sync"]) && (kwArgs["sync"] == true))));

	};

	this.bind = function (kwArgs) {

		if (!this["iframe"]) {

			this.setUpIframe();

		}

		this.requestQueue.push(kwArgs);

		this.fireNextRequest();

		return;

	};

	this.setUpIframe = function () {

		this.iframe = dojo.io.createIFrame(this.iframeName, "dojo.io.IframeTransport.iframeOnload();");

	};

	this.iframeOnload = function (errorObject) {

		if (!_this.currentRequest) {

			_this.fireNextRequest();

			return;

		}

		var req = _this.currentRequest;

		if (req.formNode) {

			var toClean = req._contentToClean;

			for (var i = 0; i < toClean.length; i++) {

				var key = toClean[i];

				if (dojo.render.html.safari) {

					var fNode = req.formNode;

					for (var j = 0; j < fNode.childNodes.length; j++) {

						var chNode = fNode.childNodes[j];

						if (chNode.name == key) {

							var pNode = chNode.parentNode;

							pNode.removeChild(chNode);

							break;

						}

					}

				} else {

					var input = req.formNode[key];

					req.formNode.removeChild(input);

					req.formNode[key] = null;

				}

			}

			if (req["_originalAction"]) {

				req.formNode.setAttribute("action", req._originalAction);

			}

			if (req["_originalTarget"]) {

				req.formNode.setAttribute("target", req._originalTarget);

				req.formNode.target = req._originalTarget;

			}

		}

		var contentDoc = function (iframe_el) {

			var doc = iframe_el.contentDocument || ((iframe_el.contentWindow) && (iframe_el.contentWindow.document)) || ((iframe_el.name) && (document.frames[iframe_el.name]) && (document.frames[iframe_el.name].document)) || null;

			return doc;

		};

		var value;

		var success = false;

		if (errorObject) {

			this._callError(req, "IframeTransport Request Error: " + errorObject);

		} else {

			var ifd = contentDoc(_this.iframe);

			try {

				var cmt = req.mimetype;

				if ((cmt == "text/javascript") || (cmt == "text/json") || (cmt == "application/json")) {

					var js = ifd.getElementsByTagName("textarea")[0].value;

					if (cmt == "text/json" || cmt == "application/json") {

						js = "(" + js + ")";

					}

					value = dj_eval(js);

				} else {

					if (cmt == "text/html") {

						value = ifd;

					} else {

						value = ifd.getElementsByTagName("textarea")[0].value;

					}

				}

				success = true;

			}

			catch (e) {

				this._callError(req, "IframeTransport Error: " + e);

			}

		}

		try {

			if (success && dojo.lang.isFunction(req["load"])) {

				req.load("load", value, req);

			}

		}

		catch (e) {

			throw e;

		}

		finally {

			_this.currentRequest = null;

			_this.fireNextRequest();

		}

	};

	this._callError = function (req, message) {

		var errObj = new dojo.io.Error(message);

		if (dojo.lang.isFunction(req["error"])) {

			req.error("error", errObj, req);

		}

	};

	dojo.io.transports.addTransport("IframeTransport");

};