| /* |
| 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"); |
| }; |
| |