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alexandre_ |
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/*
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Copyright (c) 2004-2006, The Dojo Foundation
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All Rights Reserved.
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Licensed under the Academic Free License version 2.1 or above OR the
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modified BSD license. For more information on Dojo licensing, see:
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http://dojotoolkit.org/community/licensing.shtml
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*/
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dojo.provide("dojo.io.BrowserIO");
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dojo.require("dojo.io.common");
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dojo.require("dojo.lang.array");
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dojo.require("dojo.lang.func");
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dojo.require("dojo.string.extras");
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dojo.require("dojo.dom");
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dojo.require("dojo.undo.browser");
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if (!dj_undef("window")) {
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dojo.io.checkChildrenForFile = function (node) {
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var hasFile = false;
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var inputs = node.getElementsByTagName("input");
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dojo.lang.forEach(inputs, function (input) {
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if (hasFile) {
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return;
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}
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if (input.getAttribute("type") == "file") {
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hasFile = true;
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}
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});
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return hasFile;
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};
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dojo.io.formHasFile = function (formNode) {
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return dojo.io.checkChildrenForFile(formNode);
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};
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dojo.io.updateNode = function (node, urlOrArgs) {
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node = dojo.byId(node);
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var args = urlOrArgs;
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if (dojo.lang.isString(urlOrArgs)) {
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args = {url:urlOrArgs};
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}
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args.mimetype = "text/html";
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args.load = function (t, d, e) {
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while (node.firstChild) {
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dojo.dom.destroyNode(node.firstChild);
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}
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node.innerHTML = d;
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};
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dojo.io.bind(args);
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};
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dojo.io.formFilter = function (node) {
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var type = (node.type || "").toLowerCase();
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return !node.disabled && node.name && !dojo.lang.inArray(["file", "submit", "image", "reset", "button"], type);
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};
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dojo.io.encodeForm = function (formNode, encoding, formFilter) {
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if ((!formNode) || (!formNode.tagName) || (!formNode.tagName.toLowerCase() == "form")) {
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dojo.raise("Attempted to encode a non-form element.");
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}
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if (!formFilter) {
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formFilter = dojo.io.formFilter;
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}
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var enc = /utf/i.test(encoding || "") ? encodeURIComponent : dojo.string.encodeAscii;
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var values = [];
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for (var i = 0; i < formNode.elements.length; i++) {
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var elm = formNode.elements[i];
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if (!elm || elm.tagName.toLowerCase() == "fieldset" || !formFilter(elm)) {
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continue;
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}
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var name = enc(elm.name);
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var type = elm.type.toLowerCase();
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if (type == "select-multiple") {
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for (var j = 0; j < elm.options.length; j++) {
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if (elm.options[j].selected) {
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values.push(name + "=" + enc(elm.options[j].value));
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}
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}
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} else {
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if (dojo.lang.inArray(["radio", "checkbox"], type)) {
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if (elm.checked) {
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values.push(name + "=" + enc(elm.value));
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}
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} else {
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values.push(name + "=" + enc(elm.value));
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}
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}
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}
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var inputs = formNode.getElementsByTagName("input");
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for (var i = 0; i < inputs.length; i++) {
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var input = inputs[i];
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if (input.type.toLowerCase() == "image" && input.form == formNode && formFilter(input)) {
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var name = enc(input.name);
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values.push(name + "=" + enc(input.value));
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values.push(name + ".x=0");
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values.push(name + ".y=0");
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}
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}
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return values.join("&") + "&";
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};
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dojo.io.FormBind = function (args) {
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this.bindArgs = {};
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if (args && args.formNode) {
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this.init(args);
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} else {
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if (args) {
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this.init({formNode:args});
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}
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}
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};
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dojo.lang.extend(dojo.io.FormBind, {form:null, bindArgs:null, clickedButton:null, init:function (args) {
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var form = dojo.byId(args.formNode);
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if (!form || !form.tagName || form.tagName.toLowerCase() != "form") {
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throw new Error("FormBind: Couldn't apply, invalid form");
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} else {
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if (this.form == form) {
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return;
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} else {
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if (this.form) {
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throw new Error("FormBind: Already applied to a form");
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}
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}
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}
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dojo.lang.mixin(this.bindArgs, args);
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this.form = form;
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this.connect(form, "onsubmit", "submit");
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for (var i = 0; i < form.elements.length; i++) {
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var node = form.elements[i];
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if (node && node.type && dojo.lang.inArray(["submit", "button"], node.type.toLowerCase())) {
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this.connect(node, "onclick", "click");
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}
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}
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var inputs = form.getElementsByTagName("input");
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for (var i = 0; i < inputs.length; i++) {
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var input = inputs[i];
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if (input.type.toLowerCase() == "image" && input.form == form) {
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this.connect(input, "onclick", "click");
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}
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}
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}, onSubmit:function (form) {
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return true;
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}, submit:function (e) {
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e.preventDefault();
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if (this.onSubmit(this.form)) {
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dojo.io.bind(dojo.lang.mixin(this.bindArgs, {formFilter:dojo.lang.hitch(this, "formFilter")}));
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}
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}, click:function (e) {
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var node = e.currentTarget;
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if (node.disabled) {
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return;
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}
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this.clickedButton = node;
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}, formFilter:function (node) {
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var type = (node.type || "").toLowerCase();
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var accept = false;
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if (node.disabled || !node.name) {
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accept = false;
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} else {
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if (dojo.lang.inArray(["submit", "button", "image"], type)) {
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if (!this.clickedButton) {
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this.clickedButton = node;
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}
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accept = node == this.clickedButton;
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} else {
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accept = !dojo.lang.inArray(["file", "submit", "reset", "button"], type);
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}
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}
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return accept;
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}, connect:function (srcObj, srcFcn, targetFcn) {
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if (dojo.evalObjPath("dojo.event.connect")) {
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dojo.event.connect(srcObj, srcFcn, this, targetFcn);
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} else {
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var fcn = dojo.lang.hitch(this, targetFcn);
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srcObj[srcFcn] = function (e) {
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if (!e) {
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e = window.event;
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}
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if (!e.currentTarget) {
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e.currentTarget = e.srcElement;
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}
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if (!e.preventDefault) {
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e.preventDefault = function () {
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window.event.returnValue = false;
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};
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}
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fcn(e);
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};
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}
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}});
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dojo.io.XMLHTTPTransport = new function () {
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var _this = this;
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var _cache = {};
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this.useCache = false;
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this.preventCache = false;
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function getCacheKey(url, query, method) {
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return url + "|" + query + "|" + method.toLowerCase();
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}
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function addToCache(url, query, method, http) {
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_cache[getCacheKey(url, query, method)] = http;
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}
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function getFromCache(url, query, method) {
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return _cache[getCacheKey(url, query, method)];
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}
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this.clearCache = function () {
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_cache = {};
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};
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function doLoad(kwArgs, http, url, query, useCache) {
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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))) {
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var ret;
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if (kwArgs.method.toLowerCase() == "head") {
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var headers = http.getAllResponseHeaders();
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ret = {};
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ret.toString = function () {
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return headers;
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};
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var values = headers.split(/[\r\n]+/g);
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for (var i = 0; i < values.length; i++) {
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var pair = values[i].match(/^([^:]+)\s*:\s*(.+)$/i);
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if (pair) {
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ret[pair[1]] = pair[2];
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}
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}
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} else {
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if (kwArgs.mimetype == "text/javascript") {
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try {
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ret = dj_eval(http.responseText);
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}
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catch (e) {
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dojo.debug(e);
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dojo.debug(http.responseText);
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ret = null;
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}
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} else {
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if (kwArgs.mimetype == "text/json" || kwArgs.mimetype == "application/json") {
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try {
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ret = dj_eval("(" + http.responseText + ")");
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}
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catch (e) {
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dojo.debug(e);
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dojo.debug(http.responseText);
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ret = false;
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}
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} else {
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if ((kwArgs.mimetype == "application/xml") || (kwArgs.mimetype == "text/xml")) {
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ret = http.responseXML;
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if (!ret || typeof ret == "string" || !http.getResponseHeader("Content-Type")) {
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ret = dojo.dom.createDocumentFromText(http.responseText);
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}
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} else {
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ret = http.responseText;
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}
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}
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}
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}
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if (useCache) {
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addToCache(url, query, kwArgs.method, http);
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}
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kwArgs[(typeof kwArgs.load == "function") ? "load" : "handle"]("load", ret, http, kwArgs);
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} else {
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var errObj = new dojo.io.Error("XMLHttpTransport Error: " + http.status + " " + http.statusText);
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kwArgs[(typeof kwArgs.error == "function") ? "error" : "handle"]("error", errObj, http, kwArgs);
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}
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}
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function setHeaders(http, kwArgs) {
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if (kwArgs["headers"]) {
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for (var header in kwArgs["headers"]) {
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if (header.toLowerCase() == "content-type" && !kwArgs["contentType"]) {
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kwArgs["contentType"] = kwArgs["headers"][header];
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} else {
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http.setRequestHeader(header, kwArgs["headers"][header]);
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}
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}
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}
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}
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this.inFlight = [];
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this.inFlightTimer = null;
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this.startWatchingInFlight = function () {
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if (!this.inFlightTimer) {
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this.inFlightTimer = setTimeout("dojo.io.XMLHTTPTransport.watchInFlight();", 10);
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}
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};
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this.watchInFlight = function () {
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var now = null;
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if (!dojo.hostenv._blockAsync && !_this._blockAsync) {
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for (var x = this.inFlight.length - 1; x >= 0; x--) {
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try {
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var tif = this.inFlight[x];
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if (!tif || tif.http._aborted || !tif.http.readyState) {
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this.inFlight.splice(x, 1);
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continue;
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}
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if (4 == tif.http.readyState) {
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this.inFlight.splice(x, 1);
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doLoad(tif.req, tif.http, tif.url, tif.query, tif.useCache);
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} else {
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if (tif.startTime) {
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294 |
if (!now) {
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now = (new Date()).getTime();
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}
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if (tif.startTime + (tif.req.timeoutSeconds * 1000) < now) {
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298 |
if (typeof tif.http.abort == "function") {
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tif.http.abort();
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}
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this.inFlight.splice(x, 1);
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tif.req[(typeof tif.req.timeout == "function") ? "timeout" : "handle"]("timeout", null, tif.http, tif.req);
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}
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304 |
}
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}
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306 |
}
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catch (e) {
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try {
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var errObj = new dojo.io.Error("XMLHttpTransport.watchInFlight Error: " + e);
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tif.req[(typeof tif.req.error == "function") ? "error" : "handle"]("error", errObj, tif.http, tif.req);
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}
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catch (e2) {
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dojo.debug("XMLHttpTransport error callback failed: " + e2);
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}
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}
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}
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}
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clearTimeout(this.inFlightTimer);
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if (this.inFlight.length == 0) {
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this.inFlightTimer = null;
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return;
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}
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this.inFlightTimer = setTimeout("dojo.io.XMLHTTPTransport.watchInFlight();", 10);
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};
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var hasXmlHttp = dojo.hostenv.getXmlhttpObject() ? true : false;
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this.canHandle = function (kwArgs) {
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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"]));
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328 |
};
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329 |
this.multipartBoundary = "45309FFF-BD65-4d50-99C9-36986896A96F";
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330 |
this.bind = function (kwArgs) {
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331 |
if (!kwArgs["url"]) {
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332 |
if (!kwArgs["formNode"] && (kwArgs["backButton"] || kwArgs["back"] || kwArgs["changeUrl"] || kwArgs["watchForURL"]) && (!djConfig.preventBackButtonFix)) {
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|
333 |
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");
|
|
|
334 |
dojo.undo.browser.addToHistory(kwArgs);
|
|
|
335 |
return true;
|
|
|
336 |
}
|
|
|
337 |
}
|
|
|
338 |
var url = kwArgs.url;
|
|
|
339 |
var query = "";
|
|
|
340 |
if (kwArgs["formNode"]) {
|
|
|
341 |
var ta = kwArgs.formNode.getAttribute("action");
|
|
|
342 |
if ((ta) && (!kwArgs["url"])) {
|
|
|
343 |
url = ta;
|
|
|
344 |
}
|
|
|
345 |
var tp = kwArgs.formNode.getAttribute("method");
|
|
|
346 |
if ((tp) && (!kwArgs["method"])) {
|
|
|
347 |
kwArgs.method = tp;
|
|
|
348 |
}
|
|
|
349 |
query += dojo.io.encodeForm(kwArgs.formNode, kwArgs.encoding, kwArgs["formFilter"]);
|
|
|
350 |
}
|
|
|
351 |
if (url.indexOf("#") > -1) {
|
|
|
352 |
dojo.debug("Warning: dojo.io.bind: stripping hash values from url:", url);
|
|
|
353 |
url = url.split("#")[0];
|
|
|
354 |
}
|
|
|
355 |
if (kwArgs["file"]) {
|
|
|
356 |
kwArgs.method = "post";
|
|
|
357 |
}
|
|
|
358 |
if (!kwArgs["method"]) {
|
|
|
359 |
kwArgs.method = "get";
|
|
|
360 |
}
|
|
|
361 |
if (kwArgs.method.toLowerCase() == "get") {
|
|
|
362 |
kwArgs.multipart = false;
|
|
|
363 |
} else {
|
|
|
364 |
if (kwArgs["file"]) {
|
|
|
365 |
kwArgs.multipart = true;
|
|
|
366 |
} else {
|
|
|
367 |
if (!kwArgs["multipart"]) {
|
|
|
368 |
kwArgs.multipart = false;
|
|
|
369 |
}
|
|
|
370 |
}
|
|
|
371 |
}
|
|
|
372 |
if (kwArgs["backButton"] || kwArgs["back"] || kwArgs["changeUrl"]) {
|
|
|
373 |
dojo.undo.browser.addToHistory(kwArgs);
|
|
|
374 |
}
|
|
|
375 |
var content = kwArgs["content"] || {};
|
|
|
376 |
if (kwArgs.sendTransport) {
|
|
|
377 |
content["dojo.transport"] = "xmlhttp";
|
|
|
378 |
}
|
|
|
379 |
do {
|
|
|
380 |
if (kwArgs.postContent) {
|
|
|
381 |
query = kwArgs.postContent;
|
|
|
382 |
break;
|
|
|
383 |
}
|
|
|
384 |
if (content) {
|
|
|
385 |
query += dojo.io.argsFromMap(content, kwArgs.encoding);
|
|
|
386 |
}
|
|
|
387 |
if (kwArgs.method.toLowerCase() == "get" || !kwArgs.multipart) {
|
|
|
388 |
break;
|
|
|
389 |
}
|
|
|
390 |
var t = [];
|
|
|
391 |
if (query.length) {
|
|
|
392 |
var q = query.split("&");
|
|
|
393 |
for (var i = 0; i < q.length; ++i) {
|
|
|
394 |
if (q[i].length) {
|
|
|
395 |
var p = q[i].split("=");
|
|
|
396 |
t.push("--" + this.multipartBoundary, "Content-Disposition: form-data; name=\"" + p[0] + "\"", "", p[1]);
|
|
|
397 |
}
|
|
|
398 |
}
|
|
|
399 |
}
|
|
|
400 |
if (kwArgs.file) {
|
|
|
401 |
if (dojo.lang.isArray(kwArgs.file)) {
|
|
|
402 |
for (var i = 0; i < kwArgs.file.length; ++i) {
|
|
|
403 |
var o = kwArgs.file[i];
|
|
|
404 |
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);
|
|
|
405 |
}
|
|
|
406 |
} else {
|
|
|
407 |
var o = kwArgs.file;
|
|
|
408 |
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);
|
|
|
409 |
}
|
|
|
410 |
}
|
|
|
411 |
if (t.length) {
|
|
|
412 |
t.push("--" + this.multipartBoundary + "--", "");
|
|
|
413 |
query = t.join("\r\n");
|
|
|
414 |
}
|
|
|
415 |
} while (false);
|
|
|
416 |
var async = kwArgs["sync"] ? false : true;
|
|
|
417 |
var preventCache = kwArgs["preventCache"] || (this.preventCache == true && kwArgs["preventCache"] != false);
|
|
|
418 |
var useCache = kwArgs["useCache"] == true || (this.useCache == true && kwArgs["useCache"] != false);
|
|
|
419 |
if (!preventCache && useCache) {
|
|
|
420 |
var cachedHttp = getFromCache(url, query, kwArgs.method);
|
|
|
421 |
if (cachedHttp) {
|
|
|
422 |
doLoad(kwArgs, cachedHttp, url, query, false);
|
|
|
423 |
return;
|
|
|
424 |
}
|
|
|
425 |
}
|
|
|
426 |
var http = dojo.hostenv.getXmlhttpObject(kwArgs);
|
|
|
427 |
var received = false;
|
|
|
428 |
if (async) {
|
|
|
429 |
var startTime = this.inFlight.push({"req":kwArgs, "http":http, "url":url, "query":query, "useCache":useCache, "startTime":kwArgs.timeoutSeconds ? (new Date()).getTime() : 0});
|
|
|
430 |
this.startWatchingInFlight();
|
|
|
431 |
} else {
|
|
|
432 |
_this._blockAsync = true;
|
|
|
433 |
}
|
|
|
434 |
if (kwArgs.method.toLowerCase() == "post") {
|
|
|
435 |
if (!kwArgs.user) {
|
|
|
436 |
http.open("POST", url, async);
|
|
|
437 |
} else {
|
|
|
438 |
http.open("POST", url, async, kwArgs.user, kwArgs.password);
|
|
|
439 |
}
|
|
|
440 |
setHeaders(http, kwArgs);
|
|
|
441 |
http.setRequestHeader("Content-Type", kwArgs.multipart ? ("multipart/form-data; boundary=" + this.multipartBoundary) : (kwArgs.contentType || "application/x-www-form-urlencoded"));
|
|
|
442 |
try {
|
|
|
443 |
http.send(query);
|
|
|
444 |
}
|
|
|
445 |
catch (e) {
|
|
|
446 |
if (typeof http.abort == "function") {
|
|
|
447 |
http.abort();
|
|
|
448 |
}
|
|
|
449 |
doLoad(kwArgs, {status:404}, url, query, useCache);
|
|
|
450 |
}
|
|
|
451 |
} else {
|
|
|
452 |
var tmpUrl = url;
|
|
|
453 |
if (query != "") {
|
|
|
454 |
tmpUrl += (tmpUrl.indexOf("?") > -1 ? "&" : "?") + query;
|
|
|
455 |
}
|
|
|
456 |
if (preventCache) {
|
|
|
457 |
tmpUrl += (dojo.string.endsWithAny(tmpUrl, "?", "&") ? "" : (tmpUrl.indexOf("?") > -1 ? "&" : "?")) + "dojo.preventCache=" + new Date().valueOf();
|
|
|
458 |
}
|
|
|
459 |
if (!kwArgs.user) {
|
|
|
460 |
http.open(kwArgs.method.toUpperCase(), tmpUrl, async);
|
|
|
461 |
} else {
|
|
|
462 |
http.open(kwArgs.method.toUpperCase(), tmpUrl, async, kwArgs.user, kwArgs.password);
|
|
|
463 |
}
|
|
|
464 |
setHeaders(http, kwArgs);
|
|
|
465 |
try {
|
|
|
466 |
http.send(null);
|
|
|
467 |
}
|
|
|
468 |
catch (e) {
|
|
|
469 |
if (typeof http.abort == "function") {
|
|
|
470 |
http.abort();
|
|
|
471 |
}
|
|
|
472 |
doLoad(kwArgs, {status:404}, url, query, useCache);
|
|
|
473 |
}
|
|
|
474 |
}
|
|
|
475 |
if (!async) {
|
|
|
476 |
doLoad(kwArgs, http, url, query, useCache);
|
|
|
477 |
_this._blockAsync = false;
|
|
|
478 |
}
|
|
|
479 |
kwArgs.abort = function () {
|
|
|
480 |
try {
|
|
|
481 |
http._aborted = true;
|
|
|
482 |
}
|
|
|
483 |
catch (e) {
|
|
|
484 |
}
|
|
|
485 |
return http.abort();
|
|
|
486 |
};
|
|
|
487 |
return;
|
|
|
488 |
};
|
|
|
489 |
dojo.io.transports.addTransport("XMLHTTPTransport");
|
|
|
490 |
};
|
|
|
491 |
}
|
|
|
492 |
|