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Struts example source code file (browser.js)
The Struts browser.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.undo.browser"); dojo.require("dojo.io.common"); try { if ((!djConfig["preventBackButtonFix"]) && (!dojo.hostenv.post_load_)) { document.write("<iframe style='border: 0px; width: 1px; height: 1px; position: absolute; bottom: 0px; right: 0px; visibility: visible;' name='djhistory' id='djhistory' src='" + (djConfig["dojoIframeHistoryUrl"] || dojo.hostenv.getBaseScriptUri() + "iframe_history.html") + "'>"); } } catch (e) { } if (dojo.render.html.opera) { dojo.debug("Opera is not supported with dojo.undo.browser, so back/forward detection will not work."); } dojo.undo.browser = {initialHref:(!dj_undef("window")) ? window.location.href : "", initialHash:(!dj_undef("window")) ? window.location.hash : "", moveForward:false, historyStack:[], forwardStack:[], historyIframe:null, bookmarkAnchor:null, locationTimer:null, setInitialState:function (args) { this.initialState = this._createState(this.initialHref, args, this.initialHash); }, addToHistory:function (args) { this.forwardStack = []; var hash = null; var url = null; if (!this.historyIframe) { if (djConfig["useXDomain"] && !djConfig["dojoIframeHistoryUrl"]) { dojo.debug("dojo.undo.browser: When using cross-domain Dojo builds," + " please save iframe_history.html to your domain and set djConfig.dojoIframeHistoryUrl" + " to the path on your domain to iframe_history.html"); } this.historyIframe = window.frames["djhistory"]; } if (!this.bookmarkAnchor) { this.bookmarkAnchor = document.createElement("a"); dojo.body().appendChild(this.bookmarkAnchor); this.bookmarkAnchor.style.display = "none"; } if (args["changeUrl"]) { hash = "#" + ((args["changeUrl"] !== true) ? args["changeUrl"] : (new Date()).getTime()); if (this.historyStack.length == 0 && this.initialState.urlHash == hash) { this.initialState = this._createState(url, args, hash); return; } else { if (this.historyStack.length > 0 && this.historyStack[this.historyStack.length - 1].urlHash == hash) { this.historyStack[this.historyStack.length - 1] = this._createState(url, args, hash); return; } } this.changingUrl = true; setTimeout("window.location.href = '" + hash + "'; dojo.undo.browser.changingUrl = false;", 1); this.bookmarkAnchor.href = hash; if (dojo.render.html.ie) { url = this._loadIframeHistory(); var oldCB = args["back"] || args["backButton"] || args["handle"]; var tcb = function (handleName) { if (window.location.hash != "") { setTimeout("window.location.href = '" + hash + "';", 1); } oldCB.apply(this, [handleName]); }; if (args["back"]) { args.back = tcb; } else { if (args["backButton"]) { args.backButton = tcb; } else { if (args["handle"]) { args.handle = tcb; } } } var oldFW = args["forward"] || args["forwardButton"] || args["handle"]; var tfw = function (handleName) { if (window.location.hash != "") { window.location.href = hash; } if (oldFW) { oldFW.apply(this, [handleName]); } }; if (args["forward"]) { args.forward = tfw; } else { if (args["forwardButton"]) { args.forwardButton = tfw; } else { if (args["handle"]) { args.handle = tfw; } } } } else { if (dojo.render.html.moz) { if (!this.locationTimer) { this.locationTimer = setInterval("dojo.undo.browser.checkLocation();", 200); } } } } else { url = this._loadIframeHistory(); } this.historyStack.push(this._createState(url, args, hash)); }, checkLocation:function () { if (!this.changingUrl) { var hsl = this.historyStack.length; if ((window.location.hash == this.initialHash || window.location.href == this.initialHref) && (hsl == 1)) { this.handleBackButton(); return; } if (this.forwardStack.length > 0) { if (this.forwardStack[this.forwardStack.length - 1].urlHash == window.location.hash) { this.handleForwardButton(); return; } } if ((hsl >= 2) && (this.historyStack[hsl - 2])) { if (this.historyStack[hsl - 2].urlHash == window.location.hash) { this.handleBackButton(); return; } } } }, iframeLoaded:function (evt, ifrLoc) { if (!dojo.render.html.opera) { var query = this._getUrlQuery(ifrLoc.href); if (query == null) { if (this.historyStack.length == 1) { this.handleBackButton(); } return; } if (this.moveForward) { this.moveForward = false; return; } if (this.historyStack.length >= 2 && query == this._getUrlQuery(this.historyStack[this.historyStack.length - 2].url)) { this.handleBackButton(); } else { if (this.forwardStack.length > 0 && query == this._getUrlQuery(this.forwardStack[this.forwardStack.length - 1].url)) { this.handleForwardButton(); } } } }, handleBackButton:function () { var current = this.historyStack.pop(); if (!current) { return; } var last = this.historyStack[this.historyStack.length - 1]; if (!last && this.historyStack.length == 0) { last = this.initialState; } if (last) { if (last.kwArgs["back"]) { last.kwArgs["back"](); } else { if (last.kwArgs["backButton"]) { last.kwArgs["backButton"](); } else { if (last.kwArgs["handle"]) { last.kwArgs.handle("back"); } } } } this.forwardStack.push(current); }, handleForwardButton:function () { var last = this.forwardStack.pop(); if (!last) { return; } if (last.kwArgs["forward"]) { last.kwArgs.forward(); } else { if (last.kwArgs["forwardButton"]) { last.kwArgs.forwardButton(); } else { if (last.kwArgs["handle"]) { last.kwArgs.handle("forward"); } } } this.historyStack.push(last); }, _createState:function (url, args, hash) { return {"url":url, "kwArgs":args, "urlHash":hash}; }, _getUrlQuery:function (url) { var segments = url.split("?"); if (segments.length < 2) { return null; } else { return segments[1]; } }, _loadIframeHistory:function () { var url = (djConfig["dojoIframeHistoryUrl"] || dojo.hostenv.getBaseScriptUri() + "iframe_history.html") + "?" + (new Date()).getTime(); this.moveForward = true; dojo.io.setIFrameSrc(this.historyIframe, url, false); return url; }}; Other Struts examples (source code examples)Here is a short list of links related to this Struts browser.js source code file: |
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