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");
};