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.BrowserIO");
dojo.require("dojo.io.common");
dojo.require("dojo.lang.array");
dojo.require("dojo.lang.func");
dojo.require("dojo.string.extras");
dojo.require("dojo.dom");
dojo.require("dojo.undo.browser");
if (!dj_undef("window")) {
        dojo.io.checkChildrenForFile = function (node) {
                var hasFile = false;
                var inputs = node.getElementsByTagName("input");
                dojo.lang.forEach(inputs, function (input) {
                        if (hasFile) {
                                return;
                        }
                        if (input.getAttribute("type") == "file") {
                                hasFile = true;
                        }
                });
                return hasFile;
        };
        dojo.io.formHasFile = function (formNode) {
                return dojo.io.checkChildrenForFile(formNode);
        };
        dojo.io.updateNode = function (node, urlOrArgs) {
                node = dojo.byId(node);
                var args = urlOrArgs;
                if (dojo.lang.isString(urlOrArgs)) {
                        args = {url:urlOrArgs};
                }
                args.mimetype = "text/html";
                args.load = function (t, d, e) {
                        while (node.firstChild) {
                                dojo.dom.destroyNode(node.firstChild);
                        }
                        node.innerHTML = d;
                };
                dojo.io.bind(args);
        };
        dojo.io.formFilter = function (node) {
                var type = (node.type || "").toLowerCase();
                return !node.disabled && node.name && !dojo.lang.inArray(["file", "submit", "image", "reset", "button"], type);
        };
        dojo.io.encodeForm = function (formNode, encoding, formFilter) {
                if ((!formNode) || (!formNode.tagName) || (!formNode.tagName.toLowerCase() == "form")) {
                        dojo.raise("Attempted to encode a non-form element.");
                }
                if (!formFilter) {
                        formFilter = dojo.io.formFilter;
                }
                var enc = /utf/i.test(encoding || "") ? encodeURIComponent : dojo.string.encodeAscii;
                var values = [];
                for (var i = 0; i < formNode.elements.length; i++) {
                        var elm = formNode.elements[i];
                        if (!elm || elm.tagName.toLowerCase() == "fieldset" || !formFilter(elm)) {
                                continue;
                        }
                        var name = enc(elm.name);
                        var type = elm.type.toLowerCase();
                        if (type == "select-multiple") {
                                for (var j = 0; j < elm.options.length; j++) {
                                        if (elm.options[j].selected) {
                                                values.push(name + "=" + enc(elm.options[j].value));
                                        }
                                }
                        } else {
                                if (dojo.lang.inArray(["radio", "checkbox"], type)) {
                                        if (elm.checked) {
                                                values.push(name + "=" + enc(elm.value));
                                        }
                                } else {
                                        values.push(name + "=" + enc(elm.value));
                                }
                        }
                }
                var inputs = formNode.getElementsByTagName("input");
                for (var i = 0; i < inputs.length; i++) {
                        var input = inputs[i];
                        if (input.type.toLowerCase() == "image" && input.form == formNode && formFilter(input)) {
                                var name = enc(input.name);
                                values.push(name + "=" + enc(input.value));
                                values.push(name + ".x=0");
                                values.push(name + ".y=0");
                        }
                }
                return values.join("&") + "&";
        };
        dojo.io.FormBind = function (args) {
                this.bindArgs = {};
                if (args && args.formNode) {
                        this.init(args);
                } else {
                        if (args) {
                                this.init({formNode:args});
                        }
                }
        };
        dojo.lang.extend(dojo.io.FormBind, {form:null, bindArgs:null, clickedButton:null, init:function (args) {
                var form = dojo.byId(args.formNode);
                if (!form || !form.tagName || form.tagName.toLowerCase() != "form") {
                        throw new Error("FormBind: Couldn't apply, invalid form");
                } else {
                        if (this.form == form) {
                                return;
                        } else {
                                if (this.form) {
                                        throw new Error("FormBind: Already applied to a form");
                                }
                        }
                }
                dojo.lang.mixin(this.bindArgs, args);
                this.form = form;
                this.connect(form, "onsubmit", "submit");
                for (var i = 0; i < form.elements.length; i++) {
                        var node = form.elements[i];
                        if (node && node.type && dojo.lang.inArray(["submit", "button"], node.type.toLowerCase())) {
                                this.connect(node, "onclick", "click");
                        }
                }
                var inputs = form.getElementsByTagName("input");
                for (var i = 0; i < inputs.length; i++) {
                        var input = inputs[i];
                        if (input.type.toLowerCase() == "image" && input.form == form) {
                                this.connect(input, "onclick", "click");
                        }
                }
        }, onSubmit:function (form) {
                return true;
        }, submit:function (e) {
                e.preventDefault();
                if (this.onSubmit(this.form)) {
                        dojo.io.bind(dojo.lang.mixin(this.bindArgs, {formFilter:dojo.lang.hitch(this, "formFilter")}));
                }
        }, click:function (e) {
                var node = e.currentTarget;
                if (node.disabled) {
                        return;
                }
                this.clickedButton = node;
        }, formFilter:function (node) {
                var type = (node.type || "").toLowerCase();
                var accept = false;
                if (node.disabled || !node.name) {
                        accept = false;
                } else {
                        if (dojo.lang.inArray(["submit", "button", "image"], type)) {
                                if (!this.clickedButton) {
                                        this.clickedButton = node;
                                }
                                accept = node == this.clickedButton;
                        } else {
                                accept = !dojo.lang.inArray(["file", "submit", "reset", "button"], type);
                        }
                }
                return accept;
        }, connect:function (srcObj, srcFcn, targetFcn) {
                if (dojo.evalObjPath("dojo.event.connect")) {
                        dojo.event.connect(srcObj, srcFcn, this, targetFcn);
                } else {
                        var fcn = dojo.lang.hitch(this, targetFcn);
                        srcObj[srcFcn] = function (e) {
                                if (!e) {
                                        e = window.event;
                                }
                                if (!e.currentTarget) {
                                        e.currentTarget = e.srcElement;
                                }
                                if (!e.preventDefault) {
                                        e.preventDefault = function () {
                                                window.event.returnValue = false;
                                        };
                                }
                                fcn(e);
                        };
                }
        }});
        dojo.io.XMLHTTPTransport = new function () {
                var _this = this;
                var _cache = {};
                this.useCache = false;
                this.preventCache = false;
                function getCacheKey(url, query, method) {
                        return url + "|" + query + "|" + method.toLowerCase();
                }
                function addToCache(url, query, method, http) {
                        _cache[getCacheKey(url, query, method)] = http;
                }
                function getFromCache(url, query, method) {
                        return _cache[getCacheKey(url, query, method)];
                }
                this.clearCache = function () {
                        _cache = {};
                };
                function doLoad(kwArgs, http, url, query, useCache) {
                        if (((http.status >= 200) && (http.status < 300)) || (http.status == 304) || (location.protocol == "file:" && (http.status == 0 || http.status == undefined)) || (location.protocol == "chrome:" && (http.status == 0 || http.status == undefined))) {
                                var ret;
                                if (kwArgs.method.toLowerCase() == "head") {
                                        var headers = http.getAllResponseHeaders();
                                        ret = {};
                                        ret.toString = function () {
                                                return headers;
                                        };
                                        var values = headers.split(/[\r\n]+/g);
                                        for (var i = 0; i < values.length; i++) {
                                                var pair = values[i].match(/^([^:]+)\s*:\s*(.+)$/i);
                                                if (pair) {
                                                        ret[pair[1]] = pair[2];
                                                }
                                        }
                                } else {
                                        if (kwArgs.mimetype == "text/javascript") {
                                                try {
                                                        ret = dj_eval(http.responseText);
                                                }
                                                catch (e) {
                                                        dojo.debug(e);
                                                        dojo.debug(http.responseText);
                                                        ret = null;
                                                }
                                        } else {
                                                if (kwArgs.mimetype == "text/json" || kwArgs.mimetype == "application/json") {
                                                        try {
                                                                ret = dj_eval("(" + http.responseText + ")");
                                                        }
                                                        catch (e) {
                                                                dojo.debug(e);
                                                                dojo.debug(http.responseText);
                                                                ret = false;
                                                        }
                                                } else {
                                                        if ((kwArgs.mimetype == "application/xml") || (kwArgs.mimetype == "text/xml")) {
                                                                ret = http.responseXML;
                                                                if (!ret || typeof ret == "string" || !http.getResponseHeader("Content-Type")) {
                                                                        ret = dojo.dom.createDocumentFromText(http.responseText);
                                                                }
                                                        } else {
                                                                ret = http.responseText;
                                                        }
                                                }
                                        }
                                }
                                if (useCache) {
                                        addToCache(url, query, kwArgs.method, http);
                                }
                                kwArgs[(typeof kwArgs.load == "function") ? "load" : "handle"]("load", ret, http, kwArgs);
                        } else {
                                var errObj = new dojo.io.Error("XMLHttpTransport Error: " + http.status + " " + http.statusText);
                                kwArgs[(typeof kwArgs.error == "function") ? "error" : "handle"]("error", errObj, http, kwArgs);
                        }
                }
                function setHeaders(http, kwArgs) {
                        if (kwArgs["headers"]) {
                                for (var header in kwArgs["headers"]) {
                                        if (header.toLowerCase() == "content-type" && !kwArgs["contentType"]) {
                                                kwArgs["contentType"] = kwArgs["headers"][header];
                                        } else {
                                                http.setRequestHeader(header, kwArgs["headers"][header]);
                                        }
                                }
                        }
                }
                this.inFlight = [];
                this.inFlightTimer = null;
                this.startWatchingInFlight = function () {
                        if (!this.inFlightTimer) {
                                this.inFlightTimer = setTimeout("dojo.io.XMLHTTPTransport.watchInFlight();", 10);
                        }
                };
                this.watchInFlight = function () {
                        var now = null;
                        if (!dojo.hostenv._blockAsync && !_this._blockAsync) {
                                for (var x = this.inFlight.length - 1; x >= 0; x--) {
                                        try {
                                                var tif = this.inFlight[x];
                                                if (!tif || tif.http._aborted || !tif.http.readyState) {
                                                        this.inFlight.splice(x, 1);
                                                        continue;
                                                }
                                                if (4 == tif.http.readyState) {
                                                        this.inFlight.splice(x, 1);
                                                        doLoad(tif.req, tif.http, tif.url, tif.query, tif.useCache);
                                                } else {
                                                        if (tif.startTime) {
                                                                if (!now) {
                                                                        now = (new Date()).getTime();
                                                                }
                                                                if (tif.startTime + (tif.req.timeoutSeconds * 1000) < now) {
                                                                        if (typeof tif.http.abort == "function") {
                                                                                tif.http.abort();
                                                                        }
                                                                        this.inFlight.splice(x, 1);
                                                                        tif.req[(typeof tif.req.timeout == "function") ? "timeout" : "handle"]("timeout", null, tif.http, tif.req);
                                                                }
                                                        }
                                                }
                                        }
                                        catch (e) {
                                                try {
                                                        var errObj = new dojo.io.Error("XMLHttpTransport.watchInFlight Error: " + e);
                                                        tif.req[(typeof tif.req.error == "function") ? "error" : "handle"]("error", errObj, tif.http, tif.req);
                                                }
                                                catch (e2) {
                                                        dojo.debug("XMLHttpTransport error callback failed: " + e2);
                                                }
                                        }
                                }
                        }
                        clearTimeout(this.inFlightTimer);
                        if (this.inFlight.length == 0) {
                                this.inFlightTimer = null;
                                return;
                        }
                        this.inFlightTimer = setTimeout("dojo.io.XMLHTTPTransport.watchInFlight();", 10);
                };
                var hasXmlHttp = dojo.hostenv.getXmlhttpObject() ? true : false;
                this.canHandle = function (kwArgs) {
                        return hasXmlHttp && dojo.lang.inArray(["text/plain", "text/html", "application/xml", "text/xml", "text/javascript", "text/json", "application/json"], (kwArgs["mimetype"].toLowerCase() || "")) && !(kwArgs["formNode"] && dojo.io.formHasFile(kwArgs["formNode"]));
                };
                this.multipartBoundary = "45309FFF-BD65-4d50-99C9-36986896A96F";
                this.bind = function (kwArgs) {
                        if (!kwArgs["url"]) {
                                if (!kwArgs["formNode"] && (kwArgs["backButton"] || kwArgs["back"] || kwArgs["changeUrl"] || kwArgs["watchForURL"]) && (!djConfig.preventBackButtonFix)) {
                                        dojo.deprecated("Using dojo.io.XMLHTTPTransport.bind() to add to browser history without doing an IO request", "Use dojo.undo.browser.addToHistory() instead.", "0.4");
                                        dojo.undo.browser.addToHistory(kwArgs);
                                        return true;
                                }
                        }
                        var url = kwArgs.url;
                        var query = "";
                        if (kwArgs["formNode"]) {
                                var ta = kwArgs.formNode.getAttribute("action");
                                if ((ta) && (!kwArgs["url"])) {
                                        url = ta;
                                }
                                var tp = kwArgs.formNode.getAttribute("method");
                                if ((tp) && (!kwArgs["method"])) {
                                        kwArgs.method = tp;
                                }
                                query += dojo.io.encodeForm(kwArgs.formNode, kwArgs.encoding, kwArgs["formFilter"]);
                        }
                        if (url.indexOf("#") > -1) {
                                dojo.debug("Warning: dojo.io.bind: stripping hash values from url:", url);
                                url = url.split("#")[0];
                        }
                        if (kwArgs["file"]) {
                                kwArgs.method = "post";
                        }
                        if (!kwArgs["method"]) {
                                kwArgs.method = "get";
                        }
                        if (kwArgs.method.toLowerCase() == "get") {
                                kwArgs.multipart = false;
                        } else {
                                if (kwArgs["file"]) {
                                        kwArgs.multipart = true;
                                } else {
                                        if (!kwArgs["multipart"]) {
                                                kwArgs.multipart = false;
                                        }
                                }
                        }
                        if (kwArgs["backButton"] || kwArgs["back"] || kwArgs["changeUrl"]) {
                                dojo.undo.browser.addToHistory(kwArgs);
                        }
                        var content = kwArgs["content"] || {};
                        if (kwArgs.sendTransport) {
                                content["dojo.transport"] = "xmlhttp";
                        }
                        do {
                                if (kwArgs.postContent) {
                                        query = kwArgs.postContent;
                                        break;
                                }
                                if (content) {
                                        query += dojo.io.argsFromMap(content, kwArgs.encoding);
                                }
                                if (kwArgs.method.toLowerCase() == "get" || !kwArgs.multipart) {
                                        break;
                                }
                                var t = [];
                                if (query.length) {
                                        var q = query.split("&");
                                        for (var i = 0; i < q.length; ++i) {
                                                if (q[i].length) {
                                                        var p = q[i].split("=");
                                                        t.push("--" + this.multipartBoundary, "Content-Disposition: form-data; name=\"" + p[0] + "\"", "", p[1]);
                                                }
                                        }
                                }
                                if (kwArgs.file) {
                                        if (dojo.lang.isArray(kwArgs.file)) {
                                                for (var i = 0; i < kwArgs.file.length; ++i) {
                                                        var o = kwArgs.file[i];
                                                        t.push("--" + this.multipartBoundary, "Content-Disposition: form-data; name=\"" + o.name + "\"; filename=\"" + ("fileName" in o ? o.fileName : o.name) + "\"", "Content-Type: " + ("contentType" in o ? o.contentType : "application/octet-stream"), "", o.content);
                                                }
                                        } else {
                                                var o = kwArgs.file;
                                                t.push("--" + this.multipartBoundary, "Content-Disposition: form-data; name=\"" + o.name + "\"; filename=\"" + ("fileName" in o ? o.fileName : o.name) + "\"", "Content-Type: " + ("contentType" in o ? o.contentType : "application/octet-stream"), "", o.content);
                                        }
                                }
                                if (t.length) {
                                        t.push("--" + this.multipartBoundary + "--", "");
                                        query = t.join("\r\n");
                                }
                        } while (false);
                        var async = kwArgs["sync"] ? false : true;
                        var preventCache = kwArgs["preventCache"] || (this.preventCache == true && kwArgs["preventCache"] != false);
                        var useCache = kwArgs["useCache"] == true || (this.useCache == true && kwArgs["useCache"] != false);
                        if (!preventCache && useCache) {
                                var cachedHttp = getFromCache(url, query, kwArgs.method);
                                if (cachedHttp) {
                                        doLoad(kwArgs, cachedHttp, url, query, false);
                                        return;
                                }
                        }
                        var http = dojo.hostenv.getXmlhttpObject(kwArgs);
                        var received = false;
                        if (async) {
                                var startTime = this.inFlight.push({"req":kwArgs, "http":http, "url":url, "query":query, "useCache":useCache, "startTime":kwArgs.timeoutSeconds ? (new Date()).getTime() : 0});
                                this.startWatchingInFlight();
                        } else {
                                _this._blockAsync = true;
                        }
                        if (kwArgs.method.toLowerCase() == "post") {
                                if (!kwArgs.user) {
                                        http.open("POST", url, async);
                                } else {
                                        http.open("POST", url, async, kwArgs.user, kwArgs.password);
                                }
                                setHeaders(http, kwArgs);
                                http.setRequestHeader("Content-Type", kwArgs.multipart ? ("multipart/form-data; boundary=" + this.multipartBoundary) : (kwArgs.contentType || "application/x-www-form-urlencoded"));
                                try {
                                        http.send(query);
                                }
                                catch (e) {
                                        if (typeof http.abort == "function") {
                                                http.abort();
                                        }
                                        doLoad(kwArgs, {status:404}, url, query, useCache);
                                }
                        } else {
                                var tmpUrl = url;
                                if (query != "") {
                                        tmpUrl += (tmpUrl.indexOf("?") > -1 ? "&" : "?") + query;
                                }
                                if (preventCache) {
                                        tmpUrl += (dojo.string.endsWithAny(tmpUrl, "?", "&") ? "" : (tmpUrl.indexOf("?") > -1 ? "&" : "?")) + "dojo.preventCache=" + new Date().valueOf();
                                }
                                if (!kwArgs.user) {
                                        http.open(kwArgs.method.toUpperCase(), tmpUrl, async);
                                } else {
                                        http.open(kwArgs.method.toUpperCase(), tmpUrl, async, kwArgs.user, kwArgs.password);
                                }
                                setHeaders(http, kwArgs);
                                try {
                                        http.send(null);
                                }
                                catch (e) {
                                        if (typeof http.abort == "function") {
                                                http.abort();
                                        }
                                        doLoad(kwArgs, {status:404}, url, query, useCache);
                                }
                        }
                        if (!async) {
                                doLoad(kwArgs, http, url, query, useCache);
                                _this._blockAsync = false;
                        }
                        kwArgs.abort = function () {
                                try {
                                        http._aborted = true;
                                }
                                catch (e) {
                                }
                                return http.abort();
                        };
                        return;
                };
                dojo.io.transports.addTransport("XMLHTTPTransport");
        };
}