loader.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:20k
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.widget.html.loader");
- dojo.require("dojo.widget.HtmlWidget");
- dojo.require("dojo.io.*");
- dojo.require("dojo.lang.common");
- dojo.require("dojo.lang.extras");
- dojo.require("dojo.experimental");
- dojo.experimental("dojo.widget.html.loader");
- dojo.widget.html.loader = new (function () {
- this.toString = function () {
- return "dojo.widget.html.loader";
- };
- var _loader = this;
- dojo.addOnLoad(function () {
- dojo.experimental(_loader.toString());
- var undo = dojo.evalObjPath("dojo.undo.browser");
- if (djConfig["preventBackButtonFix"] && undo && !undo.initialState) {
- undo.setInitialState(new trackerObj);
- }
- });
- var logger = {};
- var trackerObj = function (id, data) {
- this.id = id;
- this.data = data;
- };
- trackerObj.prototype.handle = function (type) {
- if (typeof dojo == "undefined") {
- return;
- }
- var wg = dojo.widget.byId(this.id);
- if (wg) {
- wg.setContent(this.data, true);
- }
- };
- this._log = function (widget, data) {
- if (widget.trackHistory) {
- if (!logger[widget.widgetId]) {
- logger[widget.widgetId] = {childrenIds:[], stack:[data]};
- }
- var children = logger[widget.widgetId].childrenIds;
- while (children && children.length) {
- delete logger[children.pop()];
- }
- for (var child in widget.children) {
- logger[widget.widgetId].childrenIds = child.widgetId;
- }
- dojo.undo.browser.addToHistory(new trackerObj(widget.widgetId, dojo.lang.shallowCopy(data, true)));
- }
- };
- var undef = dojo.lang.isUndefined;
- var isFunc = dojo.lang.isFunction;
- function handleDefaults(e, handler, useAlert) {
- if (!handler) {
- handler = "onContentError";
- }
- if (dojo.lang.isString(e)) {
- e = {_text:e};
- }
- if (!e._text) {
- e._text = e.toString();
- }
- e.toString = function () {
- return this._text;
- };
- if (typeof e.returnValue != "boolean") {
- e.returnValue = true;
- }
- if (typeof e.preventDefault != "function") {
- e.preventDefault = function () {
- this.returnValue = false;
- };
- }
- this[handler](e);
- if (e.returnValue) {
- if (useAlert) {
- alert(e.toString());
- } else {
- this.loader.callOnUnLoad.call(this, false);
- this.onSetContent(e.toString());
- }
- }
- }
- function downloader(bindArgs) {
- for (var x in this.bindArgs) {
- bindArgs[x] = (undef(bindArgs[x]) ? this.bindArgs[x] : undefined);
- }
- var cache = this.cacheContent;
- if (undef(bindArgs.useCache)) {
- bindArgs.useCache = cache;
- }
- if (undef(bindArgs.preventCache)) {
- bindArgs.preventCache = !cache;
- }
- if (undef(bindArgs.mimetype)) {
- bindArgs.mimetype = "text/html";
- }
- this.loader.bindObj = dojo.io.bind(bindArgs);
- }
- function stackRunner(st) {
- var err = "", func = null;
- var scope = this.scriptScope || dojo.global();
- while (st.length) {
- func = st.shift();
- try {
- func.call(scope);
- }
- catch (e) {
- err += "n" + func + " failed: " + e;
- }
- }
- if (err.length) {
- var name = (st == this.loader.addOnLoads) ? "addOnLoad" : "addOnUnLoad";
- handleDefaults.call(this, name + " failuren " + err, "onExecError", true);
- }
- }
- function stackPusher(st, obj, func) {
- if (typeof func == "undefined") {
- st.push(obj);
- } else {
- st.push(function () {
- obj[func]();
- });
- }
- }
- function refreshed() {
- this.onResized();
- this.onLoad();
- this.isLoaded = true;
- }
- function asyncParse(data) {
- if (this.executeScripts) {
- this.onExecScript.call(this, data.scripts);
- }
- if (this.parseContent) {
- this.onContentParse.call(this);
- }
- refreshed.call(this);
- }
- function runHandler() {
- if (dojo.lang.isFunction(this.handler)) {
- this.handler(this, this.containerNode || this.domNode);
- refreshed.call(this);
- return false;
- }
- return true;
- }
- this.htmlContentBasicFix = function (s, url) {
- var titles = [], styles = [];
- var regex = /<title[^>]*>([sS]*?)</title>/i;
- var match, attr;
- while (match = regex.exec(s)) {
- titles.push(match[1]);
- s = s.substring(0, match.index) + s.substr(match.index + match[0].length);
- }
- regex = /(?:<(style)[^>]*>([sS]*?)</style>|<link ([^>]*rel=['"]?stylesheet['"]?[^>]*)>)/i;
- while (match = regex.exec(s)) {
- if (match[1] && match[1].toLowerCase() == "style") {
- styles.push(dojo.html.fixPathsInCssText(match[2], url));
- } else {
- if (attr = match[3].match(/href=(['"]?)([^'">]*)1/i)) {
- styles.push({path:attr[2]});
- }
- }
- s = s.substring(0, match.index) + s.substr(match.index + match[0].length);
- }
- return {"s":s, "titles":titles, "styles":styles};
- };
- this.htmlContentAdjustPaths = function (s, url) {
- var tag = "", str = "", tagFix = "", path = "";
- var attr = [], origPath = "", fix = "";
- var regexFindTag = /<[a-z][a-z0-9]*[^>]*s(?:(?:src|href|style)=[^>])+[^>]*>/i;
- var regexFindAttr = /s(src|href|style)=(['"]?)([w()[]/.,\'"-:;#=&?s@]+?)2/i;
- var regexProtocols = /^(?:[#]|(?:(?:https?|ftps?|file|javascript|mailto|news):))/;
- while (tag = regexFindTag.exec(s)) {
- str += s.substring(0, tag.index);
- s = s.substring((tag.index + tag[0].length), s.length);
- tag = tag[0];
- tagFix = "";
- while (attr = regexFindAttr.exec(tag)) {
- path = "";
- origPath = attr[3];
- switch (attr[1].toLowerCase()) {
- case "src":
- case "href":
- if (regexProtocols.exec(origPath)) {
- path = origPath;
- } else {
- path = (new dojo.uri.Uri(url, origPath).toString());
- }
- break;
- case "style":
- path = dojo.html.fixPathsInCssText(origPath, url);
- break;
- default:
- path = origPath;
- }
- fix = " " + attr[1] + "=" + attr[2] + path + attr[2];
- tagFix += tag.substring(0, attr.index) + fix;
- tag = tag.substring((attr.index + attr[0].length), tag.length);
- }
- str += tagFix + tag;
- }
- return str + s;
- };
- this.htmlContentScripts = function (s, collectScripts) {
- var scripts = [], requires = [], match = [];
- var attr = "", tmp = null, tag = "", sc = "", str = "";
- var regex = /<script([^>]*)>([sS]*?)</script>/i;
- var regexSrc = /src=(['"]?)([^"']*)1/i;
- var regexDojoJs = /.*(bdojob.js(?:.uncompressed.js)?)$/;
- var regexInvalid = /(?:var )?bdjConfigb(?:[s]*=[s]*{[^}]+}|.[w]*[s]*=[s]*[^;n]*)?;?|dojo.hostenv.writeIncludes(s*);?/g;
- var regexRequires = /dojo.(?:(?:require(?:After)?(?:If)?)|(?:widget.(?:manager.)?registerWidgetPackage)|(?:(?:hostenv.)?setModulePrefix)|defineNamespace)((['"]).*?1)s*;?/;
- while (match = regex.exec(s)) {
- if (this.executeScripts && match[1]) {
- if (attr = regexSrc.exec(match[1])) {
- if (regexDojoJs.exec(attr[2])) {
- dojo.debug("Security note! inhibit:" + attr[2] + " from beeing loaded again.");
- } else {
- scripts.push({path:attr[2]});
- }
- }
- }
- if (match[2]) {
- sc = match[2].replace(regexInvalid, "");
- if (!sc) {
- continue;
- }
- while (tmp = regexRequires.exec(sc)) {
- requires.push(tmp[0]);
- sc = sc.substring(0, tmp.index) + sc.substr(tmp.index + tmp[0].length);
- }
- if (collectScripts) {
- scripts.push(sc);
- }
- }
- s = s.substr(0, match.index) + s.substr(match.index + match[0].length);
- }
- if (collectScripts) {
- var regex = /(<[a-zA-Z][a-zA-Z0-9]*s[^>]*S=(['"])[^>]*[^.]])scriptScope([^>]*>)/;
- str = "";
- while (tag = regex.exec(s)) {
- tmp = ((tag[2] == "'") ? """ : "'");
- str += s.substring(0, tag.index);
- s = s.substr(tag.index).replace(regex, "$1dojo.widget.byId(" + tmp + this.widgetId + tmp + ").scriptScope$3");
- }
- s = str + s;
- }
- return {"s":s, "requires":requires, "scripts":scripts};
- };
- this.splitAndFixPaths = function (args) {
- if (!args.url) {
- args.url = "./";
- }
- url = new dojo.uri.Uri(location, args.url).toString();
- var ret = {"xml":"", "styles":[], "titles":[], "requires":[], "scripts":[], "url":url};
- if (args.content) {
- var tmp = null, content = args.content;
- if (args.adjustPaths) {
- content = _loader.htmlContentAdjustPaths.call(this, content, url);
- }
- tmp = _loader.htmlContentBasicFix.call(this, content, url);
- content = tmp.s;
- ret.styles = tmp.styles;
- ret.titles = tmp.titles;
- if (args.collectRequires || args.collectScripts) {
- tmp = _loader.htmlContentScripts.call(this, content, args.collectScripts);
- content = tmp.s;
- ret.requires = tmp.requires;
- ret.scripts = tmp.scripts;
- }
- var match = [];
- if (args.bodyExtract) {
- match = content.match(/<body[^>]*>s*([sS]+)s*</body>/im);
- if (match) {
- content = match[1];
- }
- }
- ret.xml = content;
- }
- return ret;
- };
- this.hookUp = function (args) {
- var widget = args.widget;
- if (dojo.lang.isString(widget)) {
- if (args.mixin) {
- dojo.raise(this.toString() + ", cant use mixin when widget is a string");
- }
- widget = dojo.evalObjPath(widget);
- }
- if (!widget || !(widget instanceof dojo.widget.HtmlWidget)) {
- dojo.raise(this.toString() + " Widget isn't defined or isn't a HtmlWidget instance");
- }
- if (widget.loader && widget.setUrl) {
- return;
- }
- var widgetProto = (args.mixin) ? widget : widget.constructor.prototype;
- widget.loader = {isLoaded:false, styleNodes:[], addOnLoads:[], addOnUnLoads:[], callOnUnLoad:(function (canCall) {
- return function (after) {
- this.abort();
- if (canCall) {
- this.onUnLoad();
- }
- canCall = after;
- };
- })(false), bindObj:null, unHook:(function (w, wg) {
- var oldProps = {isContainer:w.isContainer, adjustPats:w.adjustPaths, href:w.href, extractContent:w.extractContent, parseContent:w.parseContent, cacheContent:w.cacheContent, bindArgs:w.bindArgs, preload:w.preload, refreshOnShow:w.refreshOnShow, handler:w.handler, trackHistory:w.trackHistory, executeScripts:w.executeScripts, scriptScope:w.scriptScope, postCreate:w.postCreate, show:w.show, refresh:w.refresh, loadContents:w.loadContents, abort:w.abort, destroy:w.destroy, onLoad:w.onLoad, onUnLoad:w.onUnLoad, addOnLoad:w.addOnLoad, addOnUnLoad:w.addOnUnLoad, onDownloadStart:w.onDownloadStart, onDownloadEnd:w.onDownloadEnd, onDownloadError:w.onDownloadError, onContentError:w.onContentError, onExecError:w.onExecError, onSetContent:w.onSetContent, setUrl:w.setUrl, setContent:w.setContent, onContentParse:w.onContentParse, onExecScript:w.onExecScript, setHandler:w.setHandler};
- return function () {
- if (wg.abort) {
- wg.abort();
- }
- if ((w != wg) && (dojo.widget.byType(wg.widgetType).length > 1)) {
- return;
- }
- for (var x in oldProps) {
- if (oldProps[x] === undefined) {
- delete w[x];
- continue;
- }
- w[x] = oldProps[x];
- }
- delete wg._loader_defined;
- delete wg.loader;
- };
- })(widgetProto, widget)};
- if (widgetProto._loader_defined || widget._loader_defined) {
- return;
- }
- dojo.mixin(widgetProto, {isContainer:true, adjustPaths:undef(widgetProto.adjustPaths) ? true : widgetProto.adjustPaths, href:undef(widgetProto.href) ? "" : widgetProto.href, extractContent:undef(widgetProto.extractContent) ? true : widgetProto.extractContent, parseContent:undef(widgetProto.parseContent) ? true : widgetProto.parseContent, cacheContent:undef(widgetProto.cacheContent) ? true : widgetProto.cacheContent, bindArgs:undef(widgetProto.bindArgs) ? {} : widgetProto.bindArgs, preload:undef(widgetProto.preload) ? false : widgetProto.preload, refreshOnShow:undef(widgetProto.refreshOnShow) ? false : widgetProto.refreshOnShow, handler:undef(widgetProto.handler) ? "" : widgetProto.handler, executeScripts:undef(widgetProto.executeScripts) ? false : widgetProto.executeScripts, trackHistory:undef(widgetProto.tracHistory) ? false : widgetProto.trackHistory, scriptScope:null});
- widgetProto.postCreate = (function (postCreate) {
- return function () {
- if (widgetProto.constructor.superclass.postCreate != postCreate) {
- postCreate.apply(this, arguments);
- } else {
- widgetProto.constructor.superclass.postCreate.apply(this, arguments);
- }
- if (this.handler !== "") {
- this.setHandler(this.handler);
- }
- if (this.isShowing() || this.preload) {
- this.loadContents();
- if (!this.href) {
- _loader._log(this, (this.domNode || this.containerNode).innerHTML);
- }
- }
- };
- })(widgetProto.postCreate);
- widgetProto.show = (function (show) {
- return function () {
- if (this.refreshOnShow) {
- this.refresh();
- } else {
- this.loadContents();
- }
- if ((widgetProto.constructor.superclass.show == show) || !isFunc(show)) {
- widgetProto.constructor.superclass.show.apply(this, arguments);
- } else {
- show.apply(this, arguments);
- }
- };
- })(widgetProto.show);
- widgetProto.destroy = (function (destroy) {
- return function (destroy) {
- this.onUnLoad();
- this.abort();
- this.loader.unHook();
- if ((widgetProto.constructor.superclass.destroy != destroy) && isFunc(destroy)) {
- destroy.apply(this, arguments);
- } else {
- widgetProto.constructor.superclass.destroy.apply(this, arguments);
- }
- };
- })(widgetProto.destroy);
- if (!widgetProto.refresh) {
- widgetProto.refresh = function () {
- this.loader.isLoaded = false;
- this.loadContents();
- };
- }
- if (!widgetProto.loadContents) {
- widgetProto.loadContents = function () {
- if (this.loader.isLoaded) {
- return;
- }
- if (isFunc(this.handler)) {
- runHandler.call(this);
- } else {
- if (this.href !== "") {
- handleDefaults.call(this, "Loading...", "onDownloadStart");
- var self = this, url = this.href;
- downloader.call(this, {url:url, load:function (type, data, xhr) {
- self.onDownloadEnd.call(self, url, data);
- }, error:function (type, err, xhr) {
- var e = {responseText:xhr.responseText, status:xhr.status, statusText:xhr.statusText, responseHeaders:(xhr.getAllResponseHeaders) ? xhr.getAllResponseHeaders() : [], _text:"Error loading '" + url + "' (" + xhr.status + " " + xhr.statusText + ")"};
- handleDefaults.call(self, e, "onDownloadError");
- self.onLoad();
- }});
- }
- }
- };
- }
- if (!widgetProto.abort) {
- widgetProto.abort = function () {
- if (!this.loader || !this.loader.bindObj || !this.loader.bindObj.abort) {
- return;
- }
- this.loader.bindObj.abort();
- this.loader.bindObj = null;
- };
- }
- if (!widgetProto.onLoad) {
- widgetProto.onLoad = function () {
- stackRunner.call(this, this.loader.addOnLoads);
- this.loader.isLoaded = true;
- };
- }
- if (!widgetProto.onUnLoad) {
- widgetProto.onUnLoad = function () {
- stackRunner.call(this, this.loader.addOnUnLoads);
- delete this.scriptScope;
- };
- }
- if (!widgetProto.addOnLoad) {
- widgetProto.addOnLoad = function (obj, func) {
- stackPusher.call(this, this.loader.addOnLoads, obj, func);
- };
- }
- if (!widgetProto.addOnUnLoad) {
- widgetProto.addOnUnLoad = function (obj, func) {
- stackPusher.call(this, this.loader.addOnUnLoads, obj, func);
- };
- }
- if (!widgetProto.onExecError) {
- widgetProto.onExecError = function () {
- };
- }
- if (!widgetProto.onContentError) {
- widgetProto.onContentError = function () {
- };
- }
- if (!widgetProto.onDownloadError) {
- widgetProto.onDownloadError = function () {
- };
- }
- if (!widgetProto.onDownloadStart) {
- widgetProto.onDownloadStart = function (onDownloadStart) {
- };
- }
- if (!widgetProto.onDownloadEnd) {
- widgetProto.onDownloadEnd = function (url, data) {
- var args = {content:data, url:url, adjustPaths:this.adjustPaths, collectScripts:this.executeScripts, collectRequires:this.parseContent, bodyExtract:this.extractContent};
- data = _loader.splitAndFixPaths.call(this, args);
- this.setContent(data);
- };
- }
- if (!widgetProto.onSetContent) {
- widgetProto.onSetContent = function (cont) {
- this.destroyChildren();
- var styleNodes = this.loader.styleNodes;
- while (styleNodes.length) {
- var st = styleNodes.pop();
- if (st && st.parentNode) {
- st.parentNode.removeChild(st);
- }
- }
- var node = this.containerNode || this.domNode;
- while (node.firstChild) {
- try {
- dojo.event.browser.clean(node.firstChild);
- }
- catch (e) {
- }
- node.removeChild(node.firstChild);
- }
- try {
- if (typeof cont != "string") {
- node.appendChild(cont);
- } else {
- try {
- node.innerHTML = cont;
- }
- catch (e) {
- var tmp;
- (tmp = dojo.doc().createElement("div")).innerHTML = cont;
- while (tmp.firstChild) {
- node.appendChild(tmp.removeChild(tmp.firstChild));
- }
- }
- }
- }
- catch (e) {
- e._text = "Could'nt load content: " + e;
- var useAlert = (this.loader._onSetContent_err == e._text);
- this.loader._onSetContent_err = e._text;
- handleDefaults.call(this, e, "onContentError", useAlert);
- }
- };
- }
- if (!widgetProto.setUrl) {
- widgetProto.setUrl = function (url) {
- this.href = url;
- this.loader.isLoaded = false;
- if (this.preload || this.isShowing()) {
- this.loadContents();
- }
- };
- }
- if (!widgetProto.setContent) {
- widgetProto.setContent = function (data, dontLog) {
- this.loader.callOnUnLoad.call(this, true);
- if (!data || dojo.html.isNode(data)) {
- this.onSetContent(data);
- refreshed.call(this);
- } else {
- if (typeof data.xml != "string") {
- this.href = "";
- var args = {content:data, url:this.href, adjustPaths:this.adjustPaths, collectScripts:this.executeScripts, collectRequires:this.parseContent, bodyExtract:this.extractContent};
- data = _loader.splitAndFixPaths.call(this, args);
- } else {
- if (data.url != "./") {
- this.url = data.url;
- }
- }
- this.onSetContent(data.xml);
- for (var i = 0, styles = data.styles; i < styles.length; i++) {
- if (styles[i].path) {
- this.loader.styleNodes.push(dojo.html.insertCssFile(styles[i].path));
- } else {
- this.loader.styleNodes.push(dojo.html.insertCssText(styles[i]));
- }
- }
- if (this.parseContent) {
- for (var i = 0, requires = data.requires; i < requires.length; i++) {
- try {
- eval(requires[i]);
- }
- catch (e) {
- e._text = "dojo.widget.html.loader.hookUp: error in package loading calls, " + (e.description || e);
- handleDefaults.call(this, e, "onContentError", true);
- }
- }
- }
- if (dojo.hostenv.isXDomain && data.requires.length) {
- dojo.addOnLoad(function () {
- asyncParse.call(this, data);
- if (!dontLog) {
- _loader._log(this, data);
- }
- });
- dontLog = true;
- } else {
- asyncParse.call(this, data);
- }
- }
- if (!dontLog) {
- }
- };
- }
- if (!widgetProto.onContentParse) {
- widgetProto.onContentParse = function () {
- var node = this.containerNode || this.domNode;
- var parser = new dojo.xml.Parse();
- var frag = parser.parseElement(node, null, true);
- dojo.widget.getParser().createSubComponents(frag, this);
- };
- }
- if (!widgetProto.onExecScript) {
- widgetProto.onExecScript = function (scripts) {
- var self = this, tmp = "", code = "";
- for (var i = 0; i < scripts.length; i++) {
- if (scripts[i].path) {
- var url = scripts[i].path;
- downloader.call(this, {"url":url, "load":function (type, scriptStr) {
- (function () {
- tmp = scriptStr;
- scripts[i] = scriptStr;
- }).call(self);
- }, "error":function (type, error) {
- error._text = type + " downloading remote script";
- handleDefaults.call(self, error, "onExecError", true);
- }, "mimetype":"text/plain", "sync":true});
- code += tmp;
- } else {
- code += scripts[i];
- }
- }
- try {
- delete this.scriptScope;
- this.scriptScope = new (new Function("_container_", code + "; return this;"))(self);
- }
- catch (e) {
- e._text = "Error running scripts from content:n" + (e.description || e.toString());
- handleDefaults.call(this, e, "onExecError", true);
- }
- };
- }
- if (!widgetProto.setHandler) {
- widgetProto.setHandler = function (handler) {
- var fcn = dojo.lang.isFunction(handler) ? handler : window[handler];
- if (!isFunc(fcn)) {
- handleDefaults.call(this, "Unable to set handler, '" + handler + "' not a function.", "onExecError", true);
- return;
- }
- this.handler = function () {
- return fcn.apply(this, arguments);
- };
- };
- }
- widgetProto._loader_defined = true;
- };
- })();