BrowserIO.js
资源名称:oa.rar [点击查看]
上传用户:kimgenplus
上传日期:2016-06-05
资源大小:20877k
文件大小:16k
源码类别:
OA系统
开发平台:
Java
- /*
- 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) || (http.status == 1223) || (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(/[rn]+/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.substr(0, 9) == "text/json" || kwArgs.mimetype.substr(0, 16) == "application/json") {
- try {
- ret = dj_eval("(" + kwArgs.jsonFilter(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) {
- var mlc = kwArgs["mimetype"].toLowerCase() || "";
- return hasXmlHttp && ((dojo.lang.inArray(["text/plain", "text/html", "application/xml", "text/xml", "text/javascript"], mlc)) || (mlc.substr(0, 9) == "text/json" || mlc.substr(0, 16) == "application/json")) && !(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("rn");
- }
- } 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");
- };
- }