|
Struts example source code file (ContentPane.js)
The Struts ContentPane.js source code/* 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.ContentPane"); dojo.require("dojo.widget.*"); dojo.require("dojo.io.*"); dojo.require("dojo.widget.HtmlWidget"); dojo.require("dojo.string"); dojo.require("dojo.string.extras"); dojo.require("dojo.html.style"); dojo.widget.defineWidget("dojo.widget.ContentPane", dojo.widget.HtmlWidget, function () { this._styleNodes = []; this._onLoadStack = []; this._onUnloadStack = []; this._callOnUnload = false; this._ioBindObj; this.scriptScope; this.bindArgs = {}; }, {isContainer:true, adjustPaths:true, href:"", extractContent:true, parseContent:true, cacheContent:true, preload:false, refreshOnShow:false, handler:"", executeScripts:false, scriptSeparation:true, loadingMessage:"Loading...", isLoaded:false, postCreate:function (args, frag, parentComp) { if (this.handler !== "") { this.setHandler(this.handler); } if (this.isShowing() || this.preload) { this.loadContents(); } }, show:function () { if (this.refreshOnShow) { this.refresh(); } else { this.loadContents(); } dojo.widget.ContentPane.superclass.show.call(this); }, refresh:function () { this.isLoaded = false; this.loadContents(); }, loadContents:function () { if (this.isLoaded) { return; } if (dojo.lang.isFunction(this.handler)) { this._runHandler(); } else { if (this.href != "") { this._downloadExternalContent(this.href, this.cacheContent && !this.refreshOnShow); } } }, setUrl:function (url) { this.href = url; this.isLoaded = false; if (this.preload || this.isShowing()) { this.loadContents(); } }, abort:function () { var bind = this._ioBindObj; if (!bind || !bind.abort) { return; } bind.abort(); delete this._ioBindObj; }, _downloadExternalContent:function (url, useCache) { this.abort(); this._handleDefaults(this.loadingMessage, "onDownloadStart"); var self = this; this._ioBindObj = dojo.io.bind(this._cacheSetting({url:url, mimetype:"text/html", handler:function (type, data, xhr) { delete self._ioBindObj; if (type == "load") { self.onDownloadEnd.call(self, url, data); } else { var e = {responseText:xhr.responseText, status:xhr.status, statusText:xhr.statusText, responseHeaders:xhr.getAllResponseHeaders(), text:"Error loading '" + url + "' (" + xhr.status + " " + xhr.statusText + ")"}; self._handleDefaults.call(self, e, "onDownloadError"); self.onLoad(); } }}, useCache)); }, _cacheSetting:function (bindObj, useCache) { for (var x in this.bindArgs) { if (dojo.lang.isUndefined(bindObj[x])) { bindObj[x] = this.bindArgs[x]; } } if (dojo.lang.isUndefined(bindObj.useCache)) { bindObj.useCache = useCache; } if (dojo.lang.isUndefined(bindObj.preventCache)) { bindObj.preventCache = !useCache; } if (dojo.lang.isUndefined(bindObj.mimetype)) { bindObj.mimetype = "text/html"; } return bindObj; }, onLoad:function (e) { this._runStack("_onLoadStack"); this.isLoaded = true; }, onUnLoad:function (e) { dojo.deprecated(this.widgetType + ".onUnLoad, use .onUnload (lowercased load)", 0.5); }, onUnload:function (e) { this._runStack("_onUnloadStack"); delete this.scriptScope; if (this.onUnLoad !== dojo.widget.ContentPane.prototype.onUnLoad) { this.onUnLoad.apply(this, arguments); } }, _runStack:function (stName) { var st = this[stName]; var err = ""; var scope = this.scriptScope || window; for (var i = 0; i < st.length; i++) { try { st[i].call(scope); } catch (e) { err += "\n" + st[i] + " failed: " + e.description; } } this[stName] = []; if (err.length) { var name = (stName == "_onLoadStack") ? "addOnLoad" : "addOnUnLoad"; this._handleDefaults(name + " failure\n " + err, "onExecError", "debug"); } }, addOnLoad:function (obj, func) { this._pushOnStack(this._onLoadStack, obj, func); }, addOnUnload:function (obj, func) { this._pushOnStack(this._onUnloadStack, obj, func); }, addOnUnLoad:function () { dojo.deprecated(this.widgetType + ".addOnUnLoad, use addOnUnload instead. (lowercased Load)", 0.5); this.addOnUnload.apply(this, arguments); }, _pushOnStack:function (stack, obj, func) { if (typeof func == "undefined") { stack.push(obj); } else { stack.push(function () { obj[func](); }); } }, destroy:function () { this.onUnload(); dojo.widget.ContentPane.superclass.destroy.call(this); }, onExecError:function (e) { }, onContentError:function (e) { }, onDownloadError:function (e) { }, onDownloadStart:function (e) { }, onDownloadEnd:function (url, data) { data = this.splitAndFixPaths(data, url); this.setContent(data); }, _handleDefaults:function (e, handler, messType) { 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) { switch (messType) { case true: case "alert": alert(e.toString()); break; case "debug": dojo.debug(e.toString()); break; default: if (this._callOnUnload) { this.onUnload(); } this._callOnUnload = false; if (arguments.callee._loopStop) { dojo.debug(e.toString()); } else { arguments.callee._loopStop = true; this._setContent(e.toString()); } } } arguments.callee._loopStop = false; }, splitAndFixPaths:function (s, url) { var titles = [], scripts = [], tmp = []; var match = [], requires = [], attr = [], styles = []; var str = "", path = "", fix = "", tagFix = "", tag = "", origPath = ""; if (!url) { url = "./"; } if (s) { var regex = /<title[^>]*>([\s\S]*?)<\/title>/i; while (match = regex.exec(s)) { titles.push(match[1]); s = s.substring(0, match.index) + s.substr(match.index + match[0].length); } if (this.adjustPaths) { 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; } s = str + s; } regex = /(?:<(style)[^>]*>([\s\S]*?)<\/style>|]*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); } var regex = /<script([^>]*)>([\s\S]*?)<\/script>/i; var regexSrc = /src=(['"]?)([^"']*)\1/i; var regexDojoJs = /.*(\bdojo\b\.js(?:\.uncompressed\.js)?)$/; var regexInvalid = /(?:var )?\bdjConfig\b(?:[\s]*=[\s]*\{[^}]+\}|\.[\w]*[\s]*=[\s]*[^;\n]*)?;?|dojo\.hostenv\.writeIncludes\(\s*\);?/g; var regexRequires = /dojo\.(?:(?:require(?:After)?(?:If)?)|(?:widget\.(?:manager\.)?registerWidgetPackage)|(?:(?:hostenv\.)?setModulePrefix|registerModulePath)|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 being loaded again."); } else { scripts.push({path:attr[2]}); } } } if (match[2]) { var 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 (this.executeScripts) { scripts.push(sc); } } s = s.substr(0, match.index) + s.substr(match.index + match[0].length); } if (this.extractContent) { match = s.match(/<body[^>]*>\s*([\s\S]+)\s*<\/body>/im); if (match) { s = match[1]; } } if (this.executeScripts && this.scriptSeparation) { var regex = /(<[a-zA-Z][a-zA-Z0-9]*\s[^>]*?\S=)((['"])[^>]*scriptScope[^>]*>)/; var regexAttr = /([\s'";:\(])scriptScope(.*)/; str = ""; while (tag = regex.exec(s)) { tmp = ((tag[3] == "'") ? "\"" : "'"); fix = ""; str += s.substring(0, tag.index) + tag[1]; while (attr = regexAttr.exec(tag[2])) { tag[2] = tag[2].substring(0, attr.index) + attr[1] + "dojo.widget.byId(" + tmp + this.widgetId + tmp + ").scriptScope" + attr[2]; } str += tag[2]; s = s.substr(tag.index + tag[0].length); } s = str + s; } } return {"xml":s, "styles":styles, "titles":titles, "requires":requires, "scripts":scripts, "url":url}; }, _setContent:function (cont) { this.destroyChildren(); for (var i = 0; i < this._styleNodes.length; i++) { if (this._styleNodes[i] && this._styleNodes[i].parentNode) { this._styleNodes[i].parentNode.removeChild(this._styleNodes[i]); } } this._styleNodes = []; try { var node = this.containerNode || this.domNode; while(node!=null && node.firstChild){ dojo.html.destroyNode(node.firstChild); } if (typeof cont != "string") { node.appendChild(cont); } else { node.innerHTML = cont; } } catch (e) { e.text = "Couldn't load content:" + e.description; this._handleDefaults(e, "onContentError"); } }, setContent:function (data) { this.abort(); if (this._callOnUnload) { this.onUnload(); } this._callOnUnload = true; if (!data || dojo.html.isNode(data)) { this._setContent(data); this.onResized(); this.onLoad(); } else { if (typeof data.xml != "string") { this.href = ""; data = this.splitAndFixPaths(data); } this._setContent(data.xml); for (var i = 0; i < data.styles.length; i++) { if (data.styles[i].path) { this._styleNodes.push(dojo.html.insertCssFile(data.styles[i].path, dojo.doc(), false, true)); } else { this._styleNodes.push(dojo.html.insertCssText(data.styles[i])); } } if (this.parseContent) { for (var i = 0; i < data.requires.length; i++) { try { eval(data.requires[i]); } catch (e) { e.text = "ContentPane: error in package loading calls, " + (e.description || e); this._handleDefaults(e, "onContentError", "debug"); } } } var _self = this; function asyncParse() { if (_self.executeScripts) { _self._executeScripts(data.scripts); } if (_self.parseContent) { var node = _self.containerNode || _self.domNode; var parser = new dojo.xml.Parse(); var frag = parser.parseElement(node, null, true); dojo.widget.getParser().createSubComponents(frag, _self); } _self.onResized(); _self.onLoad(); } if (dojo.hostenv.isXDomain && data.requires.length) { dojo.addOnLoad(asyncParse); } else { asyncParse(); } } }, setHandler:function (handler) { var fcn = dojo.lang.isFunction(handler) ? handler : window[handler]; if (!dojo.lang.isFunction(fcn)) { this._handleDefaults("Unable to set handler, '" + handler + "' not a function.", "onExecError", true); return; } this.handler = function () { return fcn.apply(this, arguments); }; }, _runHandler:function () { var ret = true; if (dojo.lang.isFunction(this.handler)) { this.handler(this, this.domNode); ret = false; } this.onLoad(); return ret; }, _executeScripts:function (scripts) { var self = this; var tmp = "", code = ""; for (var i = 0; i < scripts.length; i++) { if (scripts[i].path) { dojo.io.bind(this._cacheSetting({"url":scripts[i].path, "load":function (type, scriptStr) { dojo.lang.hitch(self, tmp = ";" + scriptStr); }, "error":function (type, error) { error.text = type + " downloading remote script"; self._handleDefaults.call(self, error, "onExecError", "debug"); }, "mimetype":"text/plain", "sync":true}, this.cacheContent)); code += tmp; } else { code += scripts[i]; } } try { if (this.scriptSeparation) { delete this.scriptScope; this.scriptScope = new (new Function("_container_", code + "; return this;"))(self); } else { var djg = dojo.global(); if (djg.execScript) { djg.execScript(code); } else { var djd = dojo.doc(); var sc = djd.createElement("script"); sc.appendChild(djd.createTextNode(code)); (this.containerNode || this.domNode).appendChild(sc); } } } catch (e) { e.text = "Error running scripts from content:\n" + e.description; this._handleDefaults(e, "onExecError", "debug"); } }}); Other Struts examples (source code examples)Here is a short list of links related to this Struts ContentPane.js source code file: |
... this post is sponsored by my books ... | |
#1 New Release! |
FP Best Seller |
Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.
A percentage of advertising revenue from
pages under the /java/jwarehouse
URI on this website is
paid back to open source projects.