12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697989910010110210310410510610710810911011111211311411511611711811912012112212312412512612712812913013113213313413513613713813914014114214314414514614714814915015115215315415515615715815916016116216316416516616716816917017117217317417517617717817918018118218318418518618718818919019119219319419519619719819920020120220320420520620720820921021121221321421521621721821922022122222322422522622722822923023123223323423523623723823924024124224324424524624724824925025125225325425525625725825926026126226326426526626726826927027127227327427527627727827928028128228328428528628728828929029129229329429529629729829930030130230330430530630730830931031131231331431531631731831932032132232332432532632732832933033133233333433533633733833934034134234334434534634734834935035135235335435535635735835936036136236336436536636736836937037137237337437537637737837938038138238338438538638738838939039139239339439539639739839940040140240340440540640740840941041141241341441541641741841942042142242342442542642742842943043143243343443543643743843944044144244344444544644744844945045145245345445545645745845946046146246346446546646746846947047147247347447547647747847948048148248348448548648748848949049149249349449549649749849950050150250350450550650750850951051151251351451551651751851952052152252352452552652752852953053153253353453553653753853954054154254354454554654754854955055155255355455555655755855956056156256356456556656756856957057157257357457557657757857958058158258358458558658758858959059159259359459559659759859960060160260360460560660760860961061161261361461561661761861962062162262362462562662762862963063163263363463563663763863964064164264364464564664764864965065165265365465565665765865966066166266366466566666766866967067167267367467567667767867968068168268368468568668768868969069169269369469569669769869970070170270370470570670770870971071171271371471571671771871972072172272372472572672772872973073173273373473573673773873974074174274374474574674774874975075175275375475575675775875976076176276376476576676776876977077177277377477577677777877978078178278378478578678778878979079179279379479579679779879980080180280380480580680780880981081181281381481581681781881982082182282382482582682782882983083183283383483583683783883984084184284384484584684784884985085185285385485585685785885986086186286386486586686786886987087187287387487587687787887988088188288388488588688788888989089189289389489589689789889990090190290390490590690790890991091191291391491591691791891992092192292392492592692792892993093193293393493593693793893994094194294394494594694794894995095195295395495595695795895996096196296396496596696796896997097197297397497597697797897998098198298398498598698798898999099199299399499599699799899910001001100210031004100510061007100810091010101110121013101410151016101710181019102010211022102310241025102610271028102910301031103210331034103510361037103810391040104110421043104410451046104710481049105010511052105310541055105610571058105910601061106210631064106510661067106810691070107110721073107410751076107710781079108010811082108310841085108610871088108910901091109210931094109510961097109810991100110111021103110411051106110711081109111011111112111311141115111611171118111911201121112211231124112511261127112811291130113111321133113411351136113711381139114011411142114311441145114611471148114911501151115211531154115511561157115811591160116111621163116411651166116711681169117011711172117311741175117611771178117911801181118211831184118511861187118811891190119111921193119411951196119711981199120012011202120312041205120612071208120912101211121212131214121512161217121812191220122112221223122412251226122712281229123012311232123312341235123612371238123912401241124212431244124512461247124812491250125112521253125412551256125712581259126012611262126312641265126612671268126912701271127212731274127512761277127812791280128112821283128412851286128712881289129012911292129312941295129612971298129913001301130213031304130513061307130813091310131113121313131413151316131713181319132013211322132313241325132613271328132913301331133213331334133513361337133813391340134113421343134413451346134713481349135013511352135313541355135613571358135913601361136213631364136513661367136813691370137113721373137413751376137713781379138013811382138313841385138613871388138913901391139213931394139513961397139813991400140114021403140414051406140714081409141014111412141314141415141614171418141914201421142214231424142514261427142814291430143114321433143414351436143714381439144014411442144314441445144614471448144914501451145214531454145514561457145814591460146114621463146414651466146714681469147014711472147314741475147614771478147914801481148214831484148514861487148814891490149114921493149414951496149714981499150015011502150315041505150615071508150915101511151215131514151515161517151815191520152115221523152415251526152715281529153015311532153315341535153615371538153915401541154215431544154515461547154815491550155115521553155415551556155715581559156015611562156315641565156615671568156915701571157215731574157515761577157815791580158115821583158415851586158715881589159015911592159315941595159615971598159916001601160216031604160516061607160816091610161116121613161416151616161716181619162016211622162316241625162616271628162916301631163216331634163516361637163816391640164116421643164416451646164716481649165016511652165316541655165616571658165916601661166216631664166516661667166816691670167116721673167416751676167716781679168016811682168316841685168616871688168916901691169216931694169516961697169816991700170117021703170417051706170717081709171017111712171317141715171617171718171917201721172217231724172517261727172817291730173117321733173417351736173717381739174017411742174317441745174617471748174917501751175217531754175517561757175817591760176117621763176417651766176717681769177017711772177317741775177617771778177917801781178217831784178517861787178817891790179117921793179417951796179717981799180018011802180318041805180618071808180918101811181218131814181518161817181818191820182118221823182418251826182718281829183018311832183318341835183618371838183918401841184218431844184518461847184818491850185118521853185418551856185718581859186018611862186318641865186618671868186918701871187218731874187518761877187818791880188118821883188418851886188718881889189018911892189318941895189618971898189919001901190219031904190519061907190819091910191119121913191419151916191719181919192019211922192319241925192619271928192919301931193219331934193519361937193819391940194119421943 |
- /**
- * History.js Core
- * @author Benjamin Arthur Lupton <contact@balupton.com>
- * @copyright 2010-2011 Benjamin Arthur Lupton <contact@balupton.com>
- * @license New BSD License <http://creativecommons.org/licenses/BSD/>
- */
- (function(window,undefined){
- "use strict";
- // ========================================================================
- // Initialise
- // Localise Globals
- var
- console = window.console||undefined, // Prevent a JSLint complain
- document = window.document, // Make sure we are using the correct document
- navigator = window.navigator, // Make sure we are using the correct navigator
- sessionStorage = window.sessionStorage||false, // sessionStorage
- setTimeout = window.setTimeout,
- clearTimeout = window.clearTimeout,
- setInterval = window.setInterval,
- clearInterval = window.clearInterval,
- JSON = window.JSON,
- alert = window.alert,
- History = window.History = window.History||{}, // Public History Object
- history = window.history; // Old History Object
- // MooTools Compatibility
- JSON.stringify = JSON.stringify||JSON.encode;
- JSON.parse = JSON.parse||JSON.decode;
- // Check Existence
- if ( typeof History.init !== 'undefined' ) {
- throw new Error('History.js Core has already been loaded...');
- }
- // Initialise History
- History.init = function(){
- // Check Load Status of Adapter
- if ( typeof History.Adapter === 'undefined' ) {
- return false;
- }
- // Check Load Status of Core
- if ( typeof History.initCore !== 'undefined' ) {
- History.initCore();
- }
- // Check Load Status of HTML4 Support
- if ( typeof History.initHtml4 !== 'undefined' ) {
- History.initHtml4();
- }
- // Return true
- return true;
- };
- // ========================================================================
- // Initialise Core
- // Initialise Core
- History.initCore = function(){
- // Initialise
- if ( typeof History.initCore.initialized !== 'undefined' ) {
- // Already Loaded
- return false;
- }
- else {
- History.initCore.initialized = true;
- }
- // ====================================================================
- // Options
- /**
- * History.options
- * Configurable options
- */
- History.options = History.options||{};
- /**
- * History.options.hashChangeInterval
- * How long should the interval be before hashchange checks
- */
- History.options.hashChangeInterval = History.options.hashChangeInterval || 100;
- /**
- * History.options.safariPollInterval
- * How long should the interval be before safari poll checks
- */
- History.options.safariPollInterval = History.options.safariPollInterval || 500;
- /**
- * History.options.doubleCheckInterval
- * How long should the interval be before we perform a double check
- */
- History.options.doubleCheckInterval = History.options.doubleCheckInterval || 500;
- /**
- * History.options.storeInterval
- * How long should we wait between store calls
- */
- History.options.storeInterval = History.options.storeInterval || 1000;
- /**
- * History.options.busyDelay
- * How long should we wait between busy events
- */
- History.options.busyDelay = History.options.busyDelay || 250;
- /**
- * History.options.debug
- * If true will enable debug messages to be logged
- */
- History.options.debug = History.options.debug || false;
- /**
- * History.options.initialTitle
- * What is the title of the initial state
- */
- History.options.initialTitle = History.options.initialTitle || document.title;
- // ====================================================================
- // Interval record
- /**
- * History.intervalList
- * List of intervals set, to be cleared when document is unloaded.
- */
- History.intervalList = [];
- /**
- * History.clearAllIntervals
- * Clears all setInterval instances.
- */
- History.clearAllIntervals = function(){
- var i, il = History.intervalList;
- if (typeof il !== "undefined" && il !== null) {
- for (i = 0; i < il.length; i++) {
- clearInterval(il[i]);
- }
- History.intervalList = null;
- }
- };
- // ====================================================================
- // Debug
- /**
- * History.debug(message,...)
- * Logs the passed arguments if debug enabled
- */
- History.debug = function(){
- if ( (History.options.debug||false) ) {
- History.log.apply(History,arguments);
- }
- };
- /**
- * History.log(message,...)
- * Logs the passed arguments
- */
- History.log = function(){
- // Prepare
- var
- consoleExists = !(typeof console === 'undefined' || typeof console.log === 'undefined' || typeof console.log.apply === 'undefined'),
- textarea = document.getElementById('log'),
- message,
- i,n,
- args,arg
- ;
- // Write to Console
- if ( consoleExists ) {
- args = Array.prototype.slice.call(arguments);
- message = args.shift();
- if ( typeof console.debug !== 'undefined' ) {
- console.debug.apply(console,[message,args]);
- }
- else {
- console.log.apply(console,[message,args]);
- }
- }
- else {
- message = ("\n"+arguments[0]+"\n");
- }
- // Write to log
- for ( i=1,n=arguments.length; i<n; ++i ) {
- arg = arguments[i];
- if ( typeof arg === 'object' && typeof JSON !== 'undefined' ) {
- try {
- arg = JSON.stringify(arg);
- }
- catch ( Exception ) {
- // Recursive Object
- }
- }
- message += "\n"+arg+"\n";
- }
- // Textarea
- if ( textarea ) {
- textarea.value += message+"\n-----\n";
- textarea.scrollTop = textarea.scrollHeight - textarea.clientHeight;
- }
- // No Textarea, No Console
- else if ( !consoleExists ) {
- alert(message);
- }
- // Return true
- return true;
- };
- // ====================================================================
- // Emulated Status
- /**
- * History.getInternetExplorerMajorVersion()
- * Get's the major version of Internet Explorer
- * @return {integer}
- * @license Public Domain
- * @author Benjamin Arthur Lupton <contact@balupton.com>
- * @author James Padolsey <https://gist.github.com/527683>
- */
- History.getInternetExplorerMajorVersion = function(){
- var result = History.getInternetExplorerMajorVersion.cached =
- (typeof History.getInternetExplorerMajorVersion.cached !== 'undefined')
- ? History.getInternetExplorerMajorVersion.cached
- : (function(){
- var v = 3,
- div = document.createElement('div'),
- all = div.getElementsByTagName('i');
- while ( (div.innerHTML = '<!--[if gt IE ' + (++v) + ']><i></i><![endif]-->') && all[0] ) {}
- return (v > 4) ? v : false;
- })()
- ;
- return result;
- };
- /**
- * History.isInternetExplorer()
- * Are we using Internet Explorer?
- * @return {boolean}
- * @license Public Domain
- * @author Benjamin Arthur Lupton <contact@balupton.com>
- */
- History.isInternetExplorer = function(){
- var result =
- History.isInternetExplorer.cached =
- (typeof History.isInternetExplorer.cached !== 'undefined')
- ? History.isInternetExplorer.cached
- : Boolean(History.getInternetExplorerMajorVersion())
- ;
- return result;
- };
- /**
- * History.emulated
- * Which features require emulating?
- */
- History.emulated = {
- pushState: !Boolean(
- window.history && window.history.pushState && window.history.replaceState
- && !(
- (/ Mobile\/([1-7][a-z]|(8([abcde]|f(1[0-8]))))/i).test(navigator.userAgent) /* disable for versions of iOS before version 4.3 (8F190) */
- || (/AppleWebKit\/5([0-2]|3[0-2])/i).test(navigator.userAgent) /* disable for the mercury iOS browser, or at least older versions of the webkit engine */
- )
- ),
- hashChange: Boolean(
- !(('onhashchange' in window) || ('onhashchange' in document))
- ||
- (History.isInternetExplorer() && History.getInternetExplorerMajorVersion() < 8)
- )
- };
- /**
- * History.enabled
- * Is History enabled?
- */
- History.enabled = !History.emulated.pushState;
- /**
- * History.bugs
- * Which bugs are present
- */
- History.bugs = {
- /**
- * Safari 5 and Safari iOS 4 fail to return to the correct state once a hash is replaced by a `replaceState` call
- * https://bugs.webkit.org/show_bug.cgi?id=56249
- */
- setHash: Boolean(!History.emulated.pushState && navigator.vendor === 'Apple Computer, Inc.' && /AppleWebKit\/5([0-2]|3[0-3])/.test(navigator.userAgent)),
- /**
- * Safari 5 and Safari iOS 4 sometimes fail to apply the state change under busy conditions
- * https://bugs.webkit.org/show_bug.cgi?id=42940
- */
- safariPoll: Boolean(!History.emulated.pushState && navigator.vendor === 'Apple Computer, Inc.' && /AppleWebKit\/5([0-2]|3[0-3])/.test(navigator.userAgent)),
- /**
- * MSIE 6 and 7 sometimes do not apply a hash even it was told to (requiring a second call to the apply function)
- */
- ieDoubleCheck: Boolean(History.isInternetExplorer() && History.getInternetExplorerMajorVersion() < 8),
- /**
- * MSIE 6 requires the entire hash to be encoded for the hashes to trigger the onHashChange event
- */
- hashEscape: Boolean(History.isInternetExplorer() && History.getInternetExplorerMajorVersion() < 7)
- };
- /**
- * History.isEmptyObject(obj)
- * Checks to see if the Object is Empty
- * @param {Object} obj
- * @return {boolean}
- */
- History.isEmptyObject = function(obj) {
- for ( var name in obj ) {
- return false;
- }
- return true;
- };
- /**
- * History.cloneObject(obj)
- * Clones a object and eliminate all references to the original contexts
- * @param {Object} obj
- * @return {Object}
- */
- History.cloneObject = function(obj) {
- var hash,newObj;
- if ( obj ) {
- hash = JSON.stringify(obj);
- newObj = JSON.parse(hash);
- }
- else {
- newObj = {};
- }
- return newObj;
- };
- // ====================================================================
- // URL Helpers
- /**
- * History.getRootUrl()
- * Turns "http://mysite.com/dir/page.html?asd" into "http://mysite.com"
- * @return {String} rootUrl
- */
- History.getRootUrl = function(){
- // Create
- var rootUrl = document.location.protocol+'//'+(document.location.hostname||document.location.host);
- if ( document.location.port||false ) {
- rootUrl += ':'+document.location.port;
- }
- rootUrl += '/';
- // Return
- return rootUrl;
- };
- /**
- * History.getBaseHref()
- * Fetches the `href` attribute of the `<base href="...">` element if it exists
- * @return {String} baseHref
- */
- History.getBaseHref = function(){
- // Create
- var
- baseElements = document.getElementsByTagName('base'),
- baseElement = null,
- baseHref = '';
- // Test for Base Element
- if ( baseElements.length === 1 ) {
- // Prepare for Base Element
- baseElement = baseElements[0];
- baseHref = baseElement.href.replace(/[^\/]+$/,'');
- }
- // Adjust trailing slash
- baseHref = baseHref.replace(/\/+$/,'');
- if ( baseHref ) baseHref += '/';
- // Return
- return baseHref;
- };
- /**
- * History.getBaseUrl()
- * Fetches the baseHref or basePageUrl or rootUrl (whichever one exists first)
- * @return {String} baseUrl
- */
- History.getBaseUrl = function(){
- // Create
- var baseUrl = History.getBaseHref()||History.getBasePageUrl()||History.getRootUrl();
- // Return
- return baseUrl;
- };
- /**
- * History.getPageUrl()
- * Fetches the URL of the current page
- * @return {String} pageUrl
- */
- History.getPageUrl = function(){
- // Fetch
- var
- State = History.getState(false,false),
- stateUrl = (State||{}).url||document.location.href,
- pageUrl;
- // Create
- pageUrl = stateUrl.replace(/\/+$/,'').replace(/[^\/]+$/,function(part,index,string){
- return (/\./).test(part) ? part : part+'/';
- });
- // Return
- return pageUrl;
- };
- /**
- * History.getBasePageUrl()
- * Fetches the Url of the directory of the current page
- * @return {String} basePageUrl
- */
- History.getBasePageUrl = function(){
- // Create
- var basePageUrl = document.location.href.replace(/[#\?].*/,'').replace(/[^\/]+$/,function(part,index,string){
- return (/[^\/]$/).test(part) ? '' : part;
- }).replace(/\/+$/,'')+'/';
- // Return
- return basePageUrl;
- };
- /**
- * History.getFullUrl(url)
- * Ensures that we have an absolute URL and not a relative URL
- * @param {string} url
- * @param {Boolean} allowBaseHref
- * @return {string} fullUrl
- */
- History.getFullUrl = function(url,allowBaseHref){
- // Prepare
- var fullUrl = url, firstChar = url.substring(0,1);
- allowBaseHref = (typeof allowBaseHref === 'undefined') ? true : allowBaseHref;
- // Check
- if ( /[a-z]+\:\/\//.test(url) ) {
- // Full URL
- }
- else if ( firstChar === '/' ) {
- // Root URL
- fullUrl = History.getRootUrl()+url.replace(/^\/+/,'');
- }
- else if ( firstChar === '#' ) {
- // Anchor URL
- fullUrl = History.getPageUrl().replace(/#.*/,'')+url;
- }
- else if ( firstChar === '?' ) {
- // Query URL
- fullUrl = History.getPageUrl().replace(/[\?#].*/,'')+url;
- }
- else {
- // Relative URL
- if ( allowBaseHref ) {
- fullUrl = History.getBaseUrl()+url.replace(/^(\.\/)+/,'');
- } else {
- fullUrl = History.getBasePageUrl()+url.replace(/^(\.\/)+/,'');
- }
- // We have an if condition above as we do not want hashes
- // which are relative to the baseHref in our URLs
- // as if the baseHref changes, then all our bookmarks
- // would now point to different locations
- // whereas the basePageUrl will always stay the same
- }
- // Return
- return fullUrl.replace(/\#$/,'');
- };
- /**
- * History.getShortUrl(url)
- * Ensures that we have a relative URL and not a absolute URL
- * @param {string} url
- * @return {string} url
- */
- History.getShortUrl = function(url){
- // Prepare
- var shortUrl = url, baseUrl = History.getBaseUrl(), rootUrl = History.getRootUrl();
- // Trim baseUrl
- if ( History.emulated.pushState ) {
- // We are in a if statement as when pushState is not emulated
- // The actual url these short urls are relative to can change
- // So within the same session, we the url may end up somewhere different
- shortUrl = shortUrl.replace(baseUrl,'');
- }
- // Trim rootUrl
- shortUrl = shortUrl.replace(rootUrl,'/');
- // Ensure we can still detect it as a state
- if ( History.isTraditionalAnchor(shortUrl) ) {
- shortUrl = './'+shortUrl;
- }
- // Clean It
- shortUrl = shortUrl.replace(/^(\.\/)+/g,'./').replace(/\#$/,'');
- // Return
- return shortUrl;
- };
- // ====================================================================
- // State Storage
- /**
- * History.store
- * The store for all session specific data
- */
- History.store = {};
- /**
- * History.idToState
- * 1-1: State ID to State Object
- */
- History.idToState = History.idToState||{};
- /**
- * History.stateToId
- * 1-1: State String to State ID
- */
- History.stateToId = History.stateToId||{};
- /**
- * History.urlToId
- * 1-1: State URL to State ID
- */
- History.urlToId = History.urlToId||{};
- /**
- * History.storedStates
- * Store the states in an array
- */
- History.storedStates = History.storedStates||[];
- /**
- * History.savedStates
- * Saved the states in an array
- */
- History.savedStates = History.savedStates||[];
- /**
- * History.noramlizeStore()
- * Noramlize the store by adding necessary values
- */
- History.normalizeStore = function(){
- History.store.idToState = History.store.idToState||{};
- History.store.urlToId = History.store.urlToId||{};
- History.store.stateToId = History.store.stateToId||{};
- };
- /**
- * History.getState()
- * Get an object containing the data, title and url of the current state
- * @param {Boolean} friendly
- * @param {Boolean} create
- * @return {Object} State
- */
- History.getState = function(friendly,create){
- // Prepare
- if ( typeof friendly === 'undefined' ) { friendly = true; }
- if ( typeof create === 'undefined' ) { create = true; }
- // Fetch
- var State = History.getLastSavedState();
- // Create
- if ( !State && create ) {
- State = History.createStateObject();
- }
- // Adjust
- if ( friendly ) {
- State = History.cloneObject(State);
- State.url = State.cleanUrl||State.url;
- }
- // Return
- return State;
- };
- /**
- * History.getIdByState(State)
- * Gets a ID for a State
- * @param {State} newState
- * @return {String} id
- */
- History.getIdByState = function(newState){
- // Fetch ID
- var id = History.extractId(newState.url),
- str;
-
- if ( !id ) {
- // Find ID via State String
- str = History.getStateString(newState);
- if ( typeof History.stateToId[str] !== 'undefined' ) {
- id = History.stateToId[str];
- }
- else if ( typeof History.store.stateToId[str] !== 'undefined' ) {
- id = History.store.stateToId[str];
- }
- else {
- // Generate a new ID
- while ( true ) {
- id = (new Date()).getTime() + String(Math.random()).replace(/\D/g,'');
- if ( typeof History.idToState[id] === 'undefined' && typeof History.store.idToState[id] === 'undefined' ) {
- break;
- }
- }
- // Apply the new State to the ID
- History.stateToId[str] = id;
- History.idToState[id] = newState;
- }
- }
- // Return ID
- return id;
- };
- /**
- * History.normalizeState(State)
- * Expands a State Object
- * @param {object} State
- * @return {object}
- */
- History.normalizeState = function(oldState){
- // Variables
- var newState, dataNotEmpty;
- // Prepare
- if ( !oldState || (typeof oldState !== 'object') ) {
- oldState = {};
- }
- // Check
- if ( typeof oldState.normalized !== 'undefined' ) {
- return oldState;
- }
- // Adjust
- if ( !oldState.data || (typeof oldState.data !== 'object') ) {
- oldState.data = {};
- }
- // ----------------------------------------------------------------
- // Create
- newState = {};
- newState.normalized = true;
- newState.title = oldState.title||'';
- newState.url = History.getFullUrl(History.unescapeString(oldState.url||document.location.href));
- newState.hash = History.getShortUrl(newState.url);
- newState.data = History.cloneObject(oldState.data);
- // Fetch ID
- newState.id = History.getIdByState(newState);
- // ----------------------------------------------------------------
- // Clean the URL
- newState.cleanUrl = newState.url.replace(/\??\&_suid.*/,'');
- newState.url = newState.cleanUrl;
- // Check to see if we have more than just a url
- dataNotEmpty = !History.isEmptyObject(newState.data);
- // Apply
- if ( newState.title || dataNotEmpty ) {
- // Add ID to Hash
- newState.hash = History.getShortUrl(newState.url).replace(/\??\&_suid.*/,'');
- if ( !/\?/.test(newState.hash) ) {
- newState.hash += '?';
- }
- newState.hash += '&_suid='+newState.id;
- }
- // Create the Hashed URL
- newState.hashedUrl = History.getFullUrl(newState.hash);
- // ----------------------------------------------------------------
- // Update the URL if we have a duplicate
- if ( (History.emulated.pushState || History.bugs.safariPoll) && History.hasUrlDuplicate(newState) ) {
- newState.url = newState.hashedUrl;
- }
- // ----------------------------------------------------------------
- // Return
- return newState;
- };
- /**
- * History.createStateObject(data,title,url)
- * Creates a object based on the data, title and url state params
- * @param {object} data
- * @param {string} title
- * @param {string} url
- * @return {object}
- */
- History.createStateObject = function(data,title,url){
- // Hashify
- var State = {
- 'data': data,
- 'title': title,
- 'url': url
- };
- // Expand the State
- State = History.normalizeState(State);
- // Return object
- return State;
- };
- /**
- * History.getStateById(id)
- * Get a state by it's UID
- * @param {String} id
- */
- History.getStateById = function(id){
- // Prepare
- id = String(id);
- // Retrieve
- var State = History.idToState[id] || History.store.idToState[id] || undefined;
- // Return State
- return State;
- };
- /**
- * Get a State's String
- * @param {State} passedState
- */
- History.getStateString = function(passedState){
- // Prepare
- var State, cleanedState, str;
- // Fetch
- State = History.normalizeState(passedState);
- // Clean
- cleanedState = {
- data: State.data,
- title: passedState.title,
- url: passedState.url
- };
- // Fetch
- str = JSON.stringify(cleanedState);
- // Return
- return str;
- };
- /**
- * Get a State's ID
- * @param {State} passedState
- * @return {String} id
- */
- History.getStateId = function(passedState){
- // Prepare
- var State, id;
-
- // Fetch
- State = History.normalizeState(passedState);
- // Fetch
- id = State.id;
- // Return
- return id;
- };
- /**
- * History.getHashByState(State)
- * Creates a Hash for the State Object
- * @param {State} passedState
- * @return {String} hash
- */
- History.getHashByState = function(passedState){
- // Prepare
- var State, hash;
-
- // Fetch
- State = History.normalizeState(passedState);
- // Hash
- hash = State.hash;
- // Return
- return hash;
- };
- /**
- * History.extractId(url_or_hash)
- * Get a State ID by it's URL or Hash
- * @param {string} url_or_hash
- * @return {string} id
- */
- History.extractId = function ( url_or_hash ) {
- // Prepare
- var id,parts,url;
- // Extract
- parts = /(.*)\&_suid=([0-9]+)$/.exec(url_or_hash);
- url = parts ? (parts[1]||url_or_hash) : url_or_hash;
- id = parts ? String(parts[2]||'') : '';
- // Return
- return id||false;
- };
- /**
- * History.isTraditionalAnchor
- * Checks to see if the url is a traditional anchor or not
- * @param {String} url_or_hash
- * @return {Boolean}
- */
- History.isTraditionalAnchor = function(url_or_hash){
- // Check
- var isTraditional = !(/[\/\?\.]/.test(url_or_hash));
- // Return
- return isTraditional;
- };
- /**
- * History.extractState
- * Get a State by it's URL or Hash
- * @param {String} url_or_hash
- * @return {State|null}
- */
- History.extractState = function(url_or_hash,create){
- // Prepare
- var State = null, id, url;
- create = create||false;
- // Fetch SUID
- id = History.extractId(url_or_hash);
- if ( id ) {
- State = History.getStateById(id);
- }
- // Fetch SUID returned no State
- if ( !State ) {
- // Fetch URL
- url = History.getFullUrl(url_or_hash);
- // Check URL
- id = History.getIdByUrl(url)||false;
- if ( id ) {
- State = History.getStateById(id);
- }
- // Create State
- if ( !State && create && !History.isTraditionalAnchor(url_or_hash) ) {
- State = History.createStateObject(null,null,url);
- }
- }
- // Return
- return State;
- };
- /**
- * History.getIdByUrl()
- * Get a State ID by a State URL
- */
- History.getIdByUrl = function(url){
- // Fetch
- var id = History.urlToId[url] || History.store.urlToId[url] || undefined;
- // Return
- return id;
- };
- /**
- * History.getLastSavedState()
- * Get an object containing the data, title and url of the current state
- * @return {Object} State
- */
- History.getLastSavedState = function(){
- return History.savedStates[History.savedStates.length-1]||undefined;
- };
- /**
- * History.getLastStoredState()
- * Get an object containing the data, title and url of the current state
- * @return {Object} State
- */
- History.getLastStoredState = function(){
- return History.storedStates[History.storedStates.length-1]||undefined;
- };
- /**
- * History.hasUrlDuplicate
- * Checks if a Url will have a url conflict
- * @param {Object} newState
- * @return {Boolean} hasDuplicate
- */
- History.hasUrlDuplicate = function(newState) {
- // Prepare
- var hasDuplicate = false,
- oldState;
- // Fetch
- oldState = History.extractState(newState.url);
- // Check
- hasDuplicate = oldState && oldState.id !== newState.id;
- // Return
- return hasDuplicate;
- };
- /**
- * History.storeState
- * Store a State
- * @param {Object} newState
- * @return {Object} newState
- */
- History.storeState = function(newState){
- // Store the State
- History.urlToId[newState.url] = newState.id;
- // Push the State
- History.storedStates.push(History.cloneObject(newState));
- // Return newState
- return newState;
- };
- /**
- * History.isLastSavedState(newState)
- * Tests to see if the state is the last state
- * @param {Object} newState
- * @return {boolean} isLast
- */
- History.isLastSavedState = function(newState){
- // Prepare
- var isLast = false,
- newId, oldState, oldId;
- // Check
- if ( History.savedStates.length ) {
- newId = newState.id;
- oldState = History.getLastSavedState();
- oldId = oldState.id;
- // Check
- isLast = (newId === oldId);
- }
- // Return
- return isLast;
- };
- /**
- * History.saveState
- * Push a State
- * @param {Object} newState
- * @return {boolean} changed
- */
- History.saveState = function(newState){
- // Check Hash
- if ( History.isLastSavedState(newState) ) {
- return false;
- }
- // Push the State
- History.savedStates.push(History.cloneObject(newState));
- // Return true
- return true;
- };
- /**
- * History.getStateByIndex()
- * Gets a state by the index
- * @param {integer} index
- * @return {Object}
- */
- History.getStateByIndex = function(index){
- // Prepare
- var State = null;
- // Handle
- if ( typeof index === 'undefined' ) {
- // Get the last inserted
- State = History.savedStates[History.savedStates.length-1];
- }
- else if ( index < 0 ) {
- // Get from the end
- State = History.savedStates[History.savedStates.length+index];
- }
- else {
- // Get from the beginning
- State = History.savedStates[index];
- }
- // Return State
- return State;
- };
- // ====================================================================
- // Hash Helpers
- /**
- * History.getHash()
- * Gets the current document hash
- * @return {string}
- */
- History.getHash = function(){
- var hash = History.unescapeHash(document.location.hash);
- return hash;
- };
- /**
- * History.unescapeString()
- * Unescape a string
- * @param {String} str
- * @return {string}
- */
- History.unescapeString = function(str){
- // Prepare
- var result = str,
- tmp;
- // Unescape hash
- while ( true ) {
- tmp = window.unescape(result);
- if ( tmp === result ) {
- break;
- }
- result = tmp;
- }
- // Return result
- return result;
- };
- /**
- * History.unescapeHash()
- * normalize and Unescape a Hash
- * @param {String} hash
- * @return {string}
- */
- History.unescapeHash = function(hash){
- // Prepare
- var result = History.normalizeHash(hash);
- // Unescape hash
- result = History.unescapeString(result);
- // Return result
- return result;
- };
- /**
- * History.normalizeHash()
- * normalize a hash across browsers
- * @return {string}
- */
- History.normalizeHash = function(hash){
- // Prepare
- var result = hash.replace(/[^#]*#/,'').replace(/#.*/, '');
- // Return result
- return result;
- };
- /**
- * History.setHash(hash)
- * Sets the document hash
- * @param {string} hash
- * @return {History}
- */
- History.setHash = function(hash,queue){
- // Prepare
- var adjustedHash, State, pageUrl;
- // Handle Queueing
- if ( queue !== false && History.busy() ) {
- // Wait + Push to Queue
- //History.debug('History.setHash: we must wait', arguments);
- History.pushQueue({
- scope: History,
- callback: History.setHash,
- args: arguments,
- queue: queue
- });
- return false;
- }
- // Log
- //History.debug('History.setHash: called',hash);
- // Prepare
- adjustedHash = History.escapeHash(hash);
- // Make Busy + Continue
- History.busy(true);
- // Check if hash is a state
- State = History.extractState(hash,true);
- if ( State && !History.emulated.pushState ) {
- // Hash is a state so skip the setHash
- //History.debug('History.setHash: Hash is a state so skipping the hash set with a direct pushState call',arguments);
- // PushState
- History.pushState(State.data,State.title,State.url,false);
- }
- else if ( document.location.hash !== adjustedHash ) {
- // Hash is a proper hash, so apply it
- // Handle browser bugs
- if ( History.bugs.setHash ) {
- // Fix Safari Bug https://bugs.webkit.org/show_bug.cgi?id=56249
- // Fetch the base page
- pageUrl = History.getPageUrl();
- // Safari hash apply
- History.pushState(null,null,pageUrl+'#'+adjustedHash,false);
- }
- else {
- // Normal hash apply
- document.location.hash = adjustedHash;
- }
- }
- // Chain
- return History;
- };
- /**
- * History.escape()
- * normalize and Escape a Hash
- * @return {string}
- */
- History.escapeHash = function(hash){
- // Prepare
- var result = History.normalizeHash(hash);
- // Escape hash
- result = window.escape(result);
- // IE6 Escape Bug
- if ( !History.bugs.hashEscape ) {
- // Restore common parts
- result = result
- .replace(/\%21/g,'!')
- .replace(/\%26/g,'&')
- .replace(/\%3D/g,'=')
- .replace(/\%3F/g,'?');
- }
- // Return result
- return result;
- };
- /**
- * History.getHashByUrl(url)
- * Extracts the Hash from a URL
- * @param {string} url
- * @return {string} url
- */
- History.getHashByUrl = function(url){
- // Extract the hash
- var hash = String(url)
- .replace(/([^#]*)#?([^#]*)#?(.*)/, '$2')
- ;
- // Unescape hash
- hash = History.unescapeHash(hash);
- // Return hash
- return hash;
- };
- /**
- * History.setTitle(title)
- * Applies the title to the document
- * @param {State} newState
- * @return {Boolean}
- */
- History.setTitle = function(newState){
- // Prepare
- var title = newState.title,
- firstState;
- // Initial
- if ( !title ) {
- firstState = History.getStateByIndex(0);
- if ( firstState && firstState.url === newState.url ) {
- title = firstState.title||History.options.initialTitle;
- }
- }
- // Apply
- try {
- document.getElementsByTagName('title')[0].innerHTML = title.replace('<','<').replace('>','>').replace(' & ',' & ');
- }
- catch ( Exception ) { }
- document.title = title;
- // Chain
- return History;
- };
- // ====================================================================
- // Queueing
- /**
- * History.queues
- * The list of queues to use
- * First In, First Out
- */
- History.queues = [];
- /**
- * History.busy(value)
- * @param {boolean} value [optional]
- * @return {boolean} busy
- */
- History.busy = function(value){
- // Apply
- if ( typeof value !== 'undefined' ) {
- //History.debug('History.busy: changing ['+(History.busy.flag||false)+'] to ['+(value||false)+']', History.queues.length);
- History.busy.flag = value;
- }
- // Default
- else if ( typeof History.busy.flag === 'undefined' ) {
- History.busy.flag = false;
- }
- // Queue
- if ( !History.busy.flag ) {
- // Execute the next item in the queue
- clearTimeout(History.busy.timeout);
- var fireNext = function(){
- var i, queue, item;
- if ( History.busy.flag ) return;
- for ( i=History.queues.length-1; i >= 0; --i ) {
- queue = History.queues[i];
- if ( queue.length === 0 ) continue;
- item = queue.shift();
- History.fireQueueItem(item);
- History.busy.timeout = setTimeout(fireNext,History.options.busyDelay);
- }
- };
- History.busy.timeout = setTimeout(fireNext,History.options.busyDelay);
- }
- // Return
- return History.busy.flag;
- };
- /**
- * History.busy.flag
- */
- History.busy.flag = false;
- /**
- * History.fireQueueItem(item)
- * Fire a Queue Item
- * @param {Object} item
- * @return {Mixed} result
- */
- History.fireQueueItem = function(item){
- return item.callback.apply(item.scope||History,item.args||[]);
- };
- /**
- * History.pushQueue(callback,args)
- * Add an item to the queue
- * @param {Object} item [scope,callback,args,queue]
- */
- History.pushQueue = function(item){
- // Prepare the queue
- History.queues[item.queue||0] = History.queues[item.queue||0]||[];
- // Add to the queue
- History.queues[item.queue||0].push(item);
- // Chain
- return History;
- };
- /**
- * History.queue (item,queue), (func,queue), (func), (item)
- * Either firs the item now if not busy, or adds it to the queue
- */
- History.queue = function(item,queue){
- // Prepare
- if ( typeof item === 'function' ) {
- item = {
- callback: item
- };
- }
- if ( typeof queue !== 'undefined' ) {
- item.queue = queue;
- }
- // Handle
- if ( History.busy() ) {
- History.pushQueue(item);
- } else {
- History.fireQueueItem(item);
- }
- // Chain
- return History;
- };
- /**
- * History.clearQueue()
- * Clears the Queue
- */
- History.clearQueue = function(){
- History.busy.flag = false;
- History.queues = [];
- return History;
- };
- // ====================================================================
- // IE Bug Fix
- /**
- * History.stateChanged
- * States whether or not the state has changed since the last double check was initialised
- */
- History.stateChanged = false;
- /**
- * History.doubleChecker
- * Contains the timeout used for the double checks
- */
- History.doubleChecker = false;
- /**
- * History.doubleCheckComplete()
- * Complete a double check
- * @return {History}
- */
- History.doubleCheckComplete = function(){
- // Update
- History.stateChanged = true;
- // Clear
- History.doubleCheckClear();
- // Chain
- return History;
- };
- /**
- * History.doubleCheckClear()
- * Clear a double check
- * @return {History}
- */
- History.doubleCheckClear = function(){
- // Clear
- if ( History.doubleChecker ) {
- clearTimeout(History.doubleChecker);
- History.doubleChecker = false;
- }
- // Chain
- return History;
- };
- /**
- * History.doubleCheck()
- * Create a double check
- * @return {History}
- */
- History.doubleCheck = function(tryAgain){
- // Reset
- History.stateChanged = false;
- History.doubleCheckClear();
- // Fix IE6,IE7 bug where calling history.back or history.forward does not actually change the hash (whereas doing it manually does)
- // Fix Safari 5 bug where sometimes the state does not change: https://bugs.webkit.org/show_bug.cgi?id=42940
- if ( History.bugs.ieDoubleCheck ) {
- // Apply Check
- History.doubleChecker = setTimeout(
- function(){
- History.doubleCheckClear();
- if ( !History.stateChanged ) {
- //History.debug('History.doubleCheck: State has not yet changed, trying again', arguments);
- // Re-Attempt
- tryAgain();
- }
- return true;
- },
- History.options.doubleCheckInterval
- );
- }
- // Chain
- return History;
- };
- // ====================================================================
- // Safari Bug Fix
- /**
- * History.safariStatePoll()
- * Poll the current state
- * @return {History}
- */
- History.safariStatePoll = function(){
- // Poll the URL
- // Get the Last State which has the new URL
- var
- urlState = History.extractState(document.location.href),
- newState;
- // Check for a difference
- if ( !History.isLastSavedState(urlState) ) {
- newState = urlState;
- }
- else {
- return;
- }
- // Check if we have a state with that url
- // If not create it
- if ( !newState ) {
- //History.debug('History.safariStatePoll: new');
- newState = History.createStateObject();
- }
- // Apply the New State
- //History.debug('History.safariStatePoll: trigger');
- History.Adapter.trigger(window,'popstate');
- // Chain
- return History;
- };
- // ====================================================================
- // State Aliases
- /**
- * History.back(queue)
- * Send the browser history back one item
- * @param {Integer} queue [optional]
- */
- History.back = function(queue){
- //History.debug('History.back: called', arguments);
- // Handle Queueing
- if ( queue !== false && History.busy() ) {
- // Wait + Push to Queue
- //History.debug('History.back: we must wait', arguments);
- History.pushQueue({
- scope: History,
- callback: History.back,
- args: arguments,
- queue: queue
- });
- return false;
- }
- // Make Busy + Continue
- History.busy(true);
- // Fix certain browser bugs that prevent the state from changing
- History.doubleCheck(function(){
- History.back(false);
- });
- // Go back
- history.go(-1);
- // End back closure
- return true;
- };
- /**
- * History.forward(queue)
- * Send the browser history forward one item
- * @param {Integer} queue [optional]
- */
- History.forward = function(queue){
- //History.debug('History.forward: called', arguments);
- // Handle Queueing
- if ( queue !== false && History.busy() ) {
- // Wait + Push to Queue
- //History.debug('History.forward: we must wait', arguments);
- History.pushQueue({
- scope: History,
- callback: History.forward,
- args: arguments,
- queue: queue
- });
- return false;
- }
- // Make Busy + Continue
- History.busy(true);
- // Fix certain browser bugs that prevent the state from changing
- History.doubleCheck(function(){
- History.forward(false);
- });
- // Go forward
- history.go(1);
- // End forward closure
- return true;
- };
- /**
- * History.go(index,queue)
- * Send the browser history back or forward index times
- * @param {Integer} queue [optional]
- */
- History.go = function(index,queue){
- //History.debug('History.go: called', arguments);
- // Prepare
- var i;
- // Handle
- if ( index > 0 ) {
- // Forward
- for ( i=1; i<=index; ++i ) {
- History.forward(queue);
- }
- }
- else if ( index < 0 ) {
- // Backward
- for ( i=-1; i>=index; --i ) {
- History.back(queue);
- }
- }
- else {
- throw new Error('History.go: History.go requires a positive or negative integer passed.');
- }
- // Chain
- return History;
- };
- // ====================================================================
- // HTML5 State Support
- // Non-Native pushState Implementation
- if ( History.emulated.pushState ) {
- /*
- * Provide Skeleton for HTML4 Browsers
- */
- // Prepare
- var emptyFunction = function(){};
- History.pushState = History.pushState||emptyFunction;
- History.replaceState = History.replaceState||emptyFunction;
- } // History.emulated.pushState
- // Native pushState Implementation
- else {
- /*
- * Use native HTML5 History API Implementation
- */
- /**
- * History.onPopState(event,extra)
- * Refresh the Current State
- */
- History.onPopState = function(event,extra){
- // Prepare
- var stateId = false, newState = false, currentHash, currentState;
- // Reset the double check
- History.doubleCheckComplete();
- // Check for a Hash, and handle apporiatly
- currentHash = History.getHash();
- if ( currentHash ) {
- // Expand Hash
- currentState = History.extractState(currentHash||document.location.href,true);
- if ( currentState ) {
- // We were able to parse it, it must be a State!
- // Let's forward to replaceState
- //History.debug('History.onPopState: state anchor', currentHash, currentState);
- History.replaceState(currentState.data, currentState.title, currentState.url, false);
- }
- else {
- // Traditional Anchor
- //History.debug('History.onPopState: traditional anchor', currentHash);
- History.Adapter.trigger(window,'anchorchange');
- History.busy(false);
- }
- // We don't care for hashes
- History.expectedStateId = false;
- return false;
- }
- // Ensure
- stateId = History.Adapter.extractEventData('state',event,extra) || false;
- // Fetch State
- if ( stateId ) {
- // Vanilla: Back/forward button was used
- newState = History.getStateById(stateId);
- }
- else if ( History.expectedStateId ) {
- // Vanilla: A new state was pushed, and popstate was called manually
- newState = History.getStateById(History.expectedStateId);
- }
- else {
- // Initial State
- newState = History.extractState(document.location.href);
- }
- // The State did not exist in our store
- if ( !newState ) {
- // Regenerate the State
- newState = History.createStateObject(null,null,document.location.href);
- }
- // Clean
- History.expectedStateId = false;
- // Check if we are the same state
- if ( History.isLastSavedState(newState) ) {
- // There has been no change (just the page's hash has finally propagated)
- //History.debug('History.onPopState: no change', newState, History.savedStates);
- History.busy(false);
- return false;
- }
- // Store the State
- History.storeState(newState);
- History.saveState(newState);
- // Force update of the title
- History.setTitle(newState);
- // Fire Our Event
- History.Adapter.trigger(window,'statechange');
- History.busy(false);
- // Return true
- return true;
- };
- History.Adapter.bind(window,'popstate',History.onPopState);
- /**
- * History.pushState(data,title,url)
- * Add a new State to the history object, become it, and trigger onpopstate
- * We have to trigger for HTML4 compatibility
- * @param {object} data
- * @param {string} title
- * @param {string} url
- * @return {true}
- */
- History.pushState = function(data,title,url,queue){
- //History.debug('History.pushState: called', arguments);
- // Check the State
- if ( History.getHashByUrl(url) && History.emulated.pushState ) {
- throw new Error('History.js does not support states with fragement-identifiers (hashes/anchors).');
- }
- // Handle Queueing
- if ( queue !== false && History.busy() ) {
- // Wait + Push to Queue
- //History.debug('History.pushState: we must wait', arguments);
- History.pushQueue({
- scope: History,
- callback: History.pushState,
- args: arguments,
- queue: queue
- });
- return false;
- }
- // Make Busy + Continue
- History.busy(true);
- // Create the newState
- var newState = History.createStateObject(data,title,url);
- // Check it
- if ( History.isLastSavedState(newState) ) {
- // Won't be a change
- History.busy(false);
- }
- else {
- // Store the newState
- History.storeState(newState);
- History.expectedStateId = newState.id;
- // Push the newState
- history.pushState(newState.id,newState.title,newState.url);
- // Fire HTML5 Event
- History.Adapter.trigger(window,'popstate');
- }
- // End pushState closure
- return true;
- };
- /**
- * History.replaceState(data,title,url)
- * Replace the State and trigger onpopstate
- * We have to trigger for HTML4 compatibility
- * @param {object} data
- * @param {string} title
- * @param {string} url
- * @return {true}
- */
- History.replaceState = function(data,title,url,queue){
- //History.debug('History.replaceState: called', arguments);
- // Check the State
- if ( History.getHashByUrl(url) && History.emulated.pushState ) {
- throw new Error('History.js does not support states with fragement-identifiers (hashes/anchors).');
- }
- // Handle Queueing
- if ( queue !== false && History.busy() ) {
- // Wait + Push to Queue
- //History.debug('History.replaceState: we must wait', arguments);
- History.pushQueue({
- scope: History,
- callback: History.replaceState,
- args: arguments,
- queue: queue
- });
- return false;
- }
- // Make Busy + Continue
- History.busy(true);
- // Create the newState
- var newState = History.createStateObject(data,title,url);
- // Check it
- if ( History.isLastSavedState(newState) ) {
- // Won't be a change
- History.busy(false);
- }
- else {
- // Store the newState
- History.storeState(newState);
- History.expectedStateId = newState.id;
- // Push the newState
- history.replaceState(newState.id,newState.title,newState.url);
- // Fire HTML5 Event
- History.Adapter.trigger(window,'popstate');
- }
- // End replaceState closure
- return true;
- };
- } // !History.emulated.pushState
- // ====================================================================
- // Initialise
- /**
- * Load the Store
- */
- if ( sessionStorage ) {
- // Fetch
- try {
- History.store = JSON.parse(sessionStorage.getItem('History.store'))||{};
- }
- catch ( err ) {
- History.store = {};
- }
- // Normalize
- History.normalizeStore();
- }
- else {
- // Default Load
- History.store = {};
- History.normalizeStore();
- }
- /**
- * Clear Intervals on exit to prevent memory leaks
- */
- History.Adapter.bind(window,"beforeunload",History.clearAllIntervals);
- History.Adapter.bind(window,"unload",History.clearAllIntervals);
- /**
- * Create the initial State
- */
- History.saveState(History.storeState(History.extractState(document.location.href,true)));
- /**
- * Bind for Saving Store
- */
- if ( sessionStorage ) {
- // When the page is closed
- History.onUnload = function(){
- // Prepare
- var currentStore, item;
- // Fetch
- try {
- currentStore = JSON.parse(sessionStorage.getItem('History.store'))||{};
- }
- catch ( err ) {
- currentStore = {};
- }
- // Ensure
- currentStore.idToState = currentStore.idToState || {};
- currentStore.urlToId = currentStore.urlToId || {};
- currentStore.stateToId = currentStore.stateToId || {};
- // Sync
- for ( item in History.idToState ) {
- if ( !History.idToState.hasOwnProperty(item) ) {
- continue;
- }
- currentStore.idToState[item] = History.idToState[item];
- }
- for ( item in History.urlToId ) {
- if ( !History.urlToId.hasOwnProperty(item) ) {
- continue;
- }
- currentStore.urlToId[item] = History.urlToId[item];
- }
- for ( item in History.stateToId ) {
- if ( !History.stateToId.hasOwnProperty(item) ) {
- continue;
- }
- currentStore.stateToId[item] = History.stateToId[item];
- }
- // Update
- History.store = currentStore;
- History.normalizeStore();
- // Store
- sessionStorage.setItem('History.store',JSON.stringify(currentStore));
- };
- // For Internet Explorer
- History.intervalList.push(setInterval(History.onUnload,History.options.storeInterval));
-
- // For Other Browsers
- History.Adapter.bind(window,'beforeunload',History.onUnload);
- History.Adapter.bind(window,'unload',History.onUnload);
-
- // Both are enabled for consistency
- }
- // Non-Native pushState Implementation
- if ( !History.emulated.pushState ) {
- // Be aware, the following is only for native pushState implementations
- // If you are wanting to include something for all browsers
- // Then include it above this if block
- /**
- * Setup Safari Fix
- */
- if ( History.bugs.safariPoll ) {
- History.intervalList.push(setInterval(History.safariStatePoll, History.options.safariPollInterval));
- }
- /**
- * Ensure Cross Browser Compatibility
- */
- if ( navigator.vendor === 'Apple Computer, Inc.' || (navigator.appCodeName||'') === 'Mozilla' ) {
- /**
- * Fix Safari HashChange Issue
- */
- // Setup Alias
- History.Adapter.bind(window,'hashchange',function(){
- History.Adapter.trigger(window,'popstate');
- });
- // Initialise Alias
- if ( History.getHash() ) {
- History.Adapter.onDomLoad(function(){
- History.Adapter.trigger(window,'hashchange');
- });
- }
- }
- } // !History.emulated.pushState
- }; // History.initCore
- // Try and Initialise History
- History.init();
- })(window);
|