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o=function(){};m.pushState=m.pushState||o,m.replaceState=m.replaceState||o}else m.onPopState=function(b,c){var e=!1,f=!1,g,h;return m.doubleCheckComplete(),g=m.getHash(),g?(h=m.extractState(g||d.location.href,!0),h?m.replaceState(h.data,h.title,h.url,!1):(m.Adapter.trigger(a,"anchorchange"),m.busy(!1)),m.expectedStateId=!1,!1):(e=m.Adapter.extractEventData("state",b,c)||!1,e?f=m.getStateById(e):m.expectedStateId?f=m.getStateById(m.expectedStateId):f=m.extractState(d.location.href),f||(f=m.createStateObject(null,null,d.location.href)),m.expectedStateId=!1,m.isLastSavedState(f)?(m.busy(!1),!1):(m.storeState(f),m.saveState(f),m.setTitle(f),m.Adapter.trigger(a,"statechange"),m.busy(!1),!0))},m.Adapter.bind(a,"popstate",m.onPopState),m.pushState=function(b,c,d,e){if(m.getHashByUrl(d)&&m.emulated.pushState)throw new Error("History.js does not support states with fragement-identifiers (hashes/anchors).");if(e!==!1&&m.busy())return m.pushQueue({scope:m,callback:m.pushState,args:arguments,queue:e}),!1;m.busy(!0);var f=m.createStateObject(b,c,d);return m.isLastSavedState(f)?m.busy(!1):(m.storeState(f),m.expectedStateId=f.id,n.pushState(f.id,f.title,f.url),m.Adapter.trigger(a,"popstate")),!0},m.replaceState=function(b,c,d,e){if(m.getHashByUrl(d)&&m.emulated.pushState)throw new Error("History.js does not support states with fragement-identifiers (hashes/anchors).");if(e!==!1&&m.busy())return m.pushQueue({scope:m,callback:m.replaceState,args:arguments,queue:e}),!1;m.busy(!0);var f=m.createStateObject(b,c,d);return m.isLastSavedState(f)?m.busy(!1):(m.storeState(f),m.expectedStateId=f.id,n.replaceState(f.id,f.title,f.url),m.Adapter.trigger(a,"popstate")),!0};if(f){try{m.store=k.parse(f.getItem("History.store"))||{}}catch(p){m.store={}}m.normalizeStore()}else m.store={},m.normalizeStore();m.Adapter.bind(a,"beforeunload",m.clearAllIntervals),m.Adapter.bind(a,"unload",m.clearAllIntervals),m.saveState(m.storeState(m.extractState(d.location.href,!0))),f&&(m.onUnload=function(){var a,b;try{a=k.parse(f.getItem("History.store"))||{}}catch(c){a={}}a.idToState=a.idToState||{},a.urlToId=a.urlToId||{},a.stateToId=a.stateToId||{};for(b in m.idToState){if(!m.idToState.hasOwnProperty(b))continue;a.idToState[b]=m.idToState[b]}for(b in m.urlToId){if(!m.urlToId.hasOwnProperty(b))continue;a.urlToId[b]=m.urlToId[b]}for(b in m.stateToId){if(!m.stateToId.hasOwnProperty(b))continue;a.stateToId[b]=m.stateToId[b]}m.store=a,m.normalizeStore(),f.setItem("History.store",k.stringify(a))},m.intervalList.push(i(m.onUnload,m.options.storeInterval)),m.Adapter.bind(a,"beforeunload",m.onUnload),m.Adapter.bind(a,"unload",m.onUnload));if(!m.emulated.pushState){m.bugs.safariPoll&&m.intervalList.push(i(m.safariStatePoll,m.options.safariPollInterval));if(e.vendor==="Apple Computer, Inc."||(e.appCodeName||"")==="Mozilla")m.Adapter.bind(a,"hashchange",function(){m.Adapter.trigger(a,"popstate")}),m.getHash()&&m.Adapter.onDomLoad(function(){m.Adapter.trigger(a,"hashchange")})}},m.init()}(window)
\ No newline at end of file
--- /dev/null
+/**
+ * History.js jQuery Adapter
+ * @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/>
+ */
+
+// Closure
+(function(window,undefined){
+ "use strict";
+
+ // Localise Globals
+ var
+ History = window.History = window.History||{},
+ jQuery = window.jQuery;
+
+ // Check Existence
+ if ( typeof History.Adapter !== 'undefined' ) {
+ throw new Error('History.js Adapter has already been loaded...');
+ }
+
+ // Add the Adapter
+ History.Adapter = {
+ /**
+ * History.Adapter.bind(el,event,callback)
+ * @param {Element|string} el
+ * @param {string} event - custom and standard events
+ * @param {function} callback
+ * @return {void}
+ */
+ bind: function(el,event,callback){
+ jQuery(el).bind(event,callback);
+ },
+
+ /**
+ * History.Adapter.trigger(el,event)
+ * @param {Element|string} el
+ * @param {string} event - custom and standard events
+ * @param {Object=} extra - a object of extra event data (optional)
+ * @return {void}
+ */
+ trigger: function(el,event,extra){
+ jQuery(el).trigger(event,extra);
+ },
+
+ /**
+ * History.Adapter.extractEventData(key,event,extra)
+ * @param {string} key - key for the event data to extract
+ * @param {string} event - custom and standard events
+ * @param {Object=} extra - a object of extra event data (optional)
+ * @return {mixed}
+ */
+ extractEventData: function(key,event,extra){
+ // jQuery Native then jQuery Custom
+ var result = (event && event.originalEvent && event.originalEvent[key]) || (extra && extra[key]) || undefined;
+
+ // Return
+ return result;
+ },
+
+ /**
+ * History.Adapter.onDomLoad(callback)
+ * @param {function} callback
+ * @return {void}
+ */
+ onDomLoad: function(callback) {
+ jQuery(callback);
+ }
+ };
+
+ // Try and Initialise History
+ if ( typeof History.init !== 'undefined' ) {
+ History.init();
+ }
+
+})(window);
+
+/**
+ * History.js HTML4 Support
+ * Depends on the HTML5 Support
+ * @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
+ document = window.document, // Make sure we are using the correct document
+ setTimeout = window.setTimeout||setTimeout,
+ clearTimeout = window.clearTimeout||clearTimeout,
+ setInterval = window.setInterval||setInterval,
+ History = window.History = window.History||{}; // Public History Object
+
+ // Check Existence
+ if ( typeof History.initHtml4 !== 'undefined' ) {
+ throw new Error('History.js HTML4 Support has already been loaded...');
+ }
+
+
+ // ========================================================================
+ // Initialise HTML4 Support
+
+ // Initialise HTML4 Support
+ History.initHtml4 = function(){
+ // Initialise
+ if ( typeof History.initHtml4.initialized !== 'undefined' ) {
+ // Already Loaded
+ return false;
+ }
+ else {
+ History.initHtml4.initialized = true;
+ }
+
+
+ // ====================================================================
+ // Properties
+
+ /**
+ * History.enabled
+ * Is History enabled?
+ */
+ History.enabled = true;
+
+
+ // ====================================================================
+ // Hash Storage
+
+ /**
+ * History.savedHashes
+ * Store the hashes in an array
+ */
+ History.savedHashes = [];
+
+ /**
+ * History.isLastHash(newHash)
+ * Checks if the hash is the last hash
+ * @param {string} newHash
+ * @return {boolean} true
+ */
+ History.isLastHash = function(newHash){
+ // Prepare
+ var oldHash = History.getHashByIndex(),
+ isLast;
+
+ // Check
+ isLast = newHash === oldHash;
+
+ // Return isLast
+ return isLast;
+ };
+
+ /**
+ * History.isHashEqual(newHash, oldHash)
+ * Checks to see if two hashes are functionally equal
+ * @param {string} newHash
+ * @param {string} oldHash
+ * @return {boolean} true
+ */
+ History.isHashEqual = function(newHash, oldHash){
+ newHash = encodeURIComponent(newHash).replace(/%25/g, "%");
+ oldHash = encodeURIComponent(oldHash).replace(/%25/g, "%");
+ return newHash === oldHash;
+ };
+
+ /**
+ * History.saveHash(newHash)
+ * Push a Hash
+ * @param {string} newHash
+ * @return {boolean} true
+ */
+ History.saveHash = function(newHash){
+ // Check Hash
+ if ( History.isLastHash(newHash) ) {
+ return false;
+ }
+
+ // Push the Hash
+ History.savedHashes.push(newHash);
+
+ // Return true
+ return true;
+ };
+
+ /**
+ * History.getHashByIndex()
+ * Gets a hash by the index
+ * @param {integer} index
+ * @return {string}
+ */
+ History.getHashByIndex = function(index){
+ // Prepare
+ var hash = null;
+
+ // Handle
+ if ( typeof index === 'undefined' ) {
+ // Get the last inserted
+ hash = History.savedHashes[History.savedHashes.length-1];
+ }
+ else if ( index < 0 ) {
+ // Get from the end
+ hash = History.savedHashes[History.savedHashes.length+index];
+ }
+ else {
+ // Get from the beginning
+ hash = History.savedHashes[index];
+ }
+
+ // Return hash
+ return hash;
+ };
+
+
+ // ====================================================================
+ // Discarded States
+
+ /**
+ * History.discardedHashes
+ * A hashed array of discarded hashes
+ */
+ History.discardedHashes = {};
+
+ /**
+ * History.discardedStates
+ * A hashed array of discarded states
+ */
+ History.discardedStates = {};
+
+ /**
+ * History.discardState(State)
+ * Discards the state by ignoring it through History
+ * @param {object} State
+ * @return {true}
+ */
+ History.discardState = function(discardedState,forwardState,backState){
+ //History.debug('History.discardState', arguments);
+ // Prepare
+ var discardedStateHash = History.getHashByState(discardedState),
+ discardObject;
+
+ // Create Discard Object
+ discardObject = {
+ 'discardedState': discardedState,
+ 'backState': backState,
+ 'forwardState': forwardState
+ };
+
+ // Add to DiscardedStates
+ History.discardedStates[discardedStateHash] = discardObject;
+
+ // Return true
+ return true;
+ };
+
+ /**
+ * History.discardHash(hash)
+ * Discards the hash by ignoring it through History
+ * @param {string} hash
+ * @return {true}
+ */
+ History.discardHash = function(discardedHash,forwardState,backState){
+ //History.debug('History.discardState', arguments);
+ // Create Discard Object
+ var discardObject = {
+ 'discardedHash': discardedHash,
+ 'backState': backState,
+ 'forwardState': forwardState
+ };
+
+ // Add to discardedHash
+ History.discardedHashes[discardedHash] = discardObject;
+
+ // Return true
+ return true;
+ };
+
+ /**
+ * History.discardState(State)
+ * Checks to see if the state is discarded
+ * @param {object} State
+ * @return {bool}
+ */
+ History.discardedState = function(State){
+ // Prepare
+ var StateHash = History.getHashByState(State),
+ discarded;
+
+ // Check
+ discarded = History.discardedStates[StateHash]||false;
+
+ // Return true
+ return discarded;
+ };
+
+ /**
+ * History.discardedHash(hash)
+ * Checks to see if the state is discarded
+ * @param {string} State
+ * @return {bool}
+ */
+ History.discardedHash = function(hash){
+ // Check
+ var discarded = History.discardedHashes[hash]||false;
+
+ // Return true
+ return discarded;
+ };
+
+ /**
+ * History.recycleState(State)
+ * Allows a discarded state to be used again
+ * @param {object} data
+ * @param {string} title
+ * @param {string} url
+ * @return {true}
+ */
+ History.recycleState = function(State){
+ //History.debug('History.recycleState', arguments);
+ // Prepare
+ var StateHash = History.getHashByState(State);
+
+ // Remove from DiscardedStates
+ if ( History.discardedState(State) ) {
+ delete History.discardedStates[StateHash];
+ }
+
+ // Return true
+ return true;
+ };
+
+
+ // ====================================================================
+ // HTML4 HashChange Support
+
+ if ( History.emulated.hashChange ) {
+ /*
+ * We must emulate the HTML4 HashChange Support by manually checking for hash changes
+ */
+
+ /**
+ * History.hashChangeInit()
+ * Init the HashChange Emulation
+ */
+ History.hashChangeInit = function(){
+ // Define our Checker Function
+ History.checkerFunction = null;
+
+ // Define some variables that will help in our checker function
+ var lastDocumentHash = '',
+ iframeId, iframe,
+ lastIframeHash, checkerRunning;
+
+ // Handle depending on the browser
+ if ( History.isInternetExplorer() ) {
+ // IE6 and IE7
+ // We need to use an iframe to emulate the back and forward buttons
+
+ // Create iFrame
+ iframeId = 'historyjs-iframe';
+ iframe = document.createElement('iframe');
+
+ // Adjust iFarme
+ iframe.setAttribute('id', iframeId);
+ iframe.style.display = 'none';
+
+ // Append iFrame
+ document.body.appendChild(iframe);
+
+ // Create initial history entry
+ iframe.contentWindow.document.open();
+ iframe.contentWindow.document.close();
+
+ // Define some variables that will help in our checker function
+ lastIframeHash = '';
+ checkerRunning = false;
+
+ // Define the checker function
+ History.checkerFunction = function(){
+ // Check Running
+ if ( checkerRunning ) {
+ return false;
+ }
+
+ // Update Running
+ checkerRunning = true;
+
+ // Fetch
+ var
+ documentHash = History.getHash(),
+ iframeHash = History.getHash(iframe.contentWindow.document.location);
+
+ // The Document Hash has changed (application caused)
+ if ( documentHash !== lastDocumentHash ) {
+ // Equalise
+ lastDocumentHash = documentHash;
+
+ // Create a history entry in the iframe
+ if ( iframeHash !== documentHash ) {
+ //History.debug('hashchange.checker: iframe hash change', 'documentHash (new):', documentHash, 'iframeHash (old):', iframeHash);
+
+ // Equalise
+ lastIframeHash = iframeHash = documentHash;
+
+ // Create History Entry
+ iframe.contentWindow.document.open();
+ iframe.contentWindow.document.close();
+
+ // Update the iframe's hash
+ iframe.contentWindow.document.location.hash = History.escapeHash(documentHash);
+ }
+
+ // Trigger Hashchange Event
+ History.Adapter.trigger(window,'hashchange');
+ }
+
+ // The iFrame Hash has changed (back button caused)
+ else if ( iframeHash !== lastIframeHash ) {
+ //History.debug('hashchange.checker: iframe hash out of sync', 'iframeHash (new):', iframeHash, 'documentHash (old):', documentHash);
+
+ // Equalise
+ lastIframeHash = iframeHash;
+
+ // Update the Hash
+ History.setHash(iframeHash,false);
+ }
+
+ // Reset Running
+ checkerRunning = false;
+
+ // Return true
+ return true;
+ };
+ }
+ else {
+ // We are not IE
+ // Firefox 1 or 2, Opera
+
+ // Define the checker function
+ History.checkerFunction = function(){
+ // Prepare
+ var documentHash = History.getHash();
+
+ // The Document Hash has changed (application caused)
+ if ( documentHash !== lastDocumentHash ) {
+ // Equalise
+ lastDocumentHash = documentHash;
+
+ // Trigger Hashchange Event
+ History.Adapter.trigger(window,'hashchange');
+ }
+
+ // Return true
+ return true;
+ };
+ }
+
+ // Apply the checker function
+ History.intervalList.push(setInterval(History.checkerFunction, History.options.hashChangeInterval));
+
+ // Done
+ return true;
+ }; // History.hashChangeInit
+
+ // Bind hashChangeInit
+ History.Adapter.onDomLoad(History.hashChangeInit);
+
+ } // History.emulated.hashChange
+
+
+ // ====================================================================
+ // HTML5 State Support
+
+ // Non-Native pushState Implementation
+ if ( History.emulated.pushState ) {
+ /*
+ * We must emulate the HTML5 State Management by using HTML4 HashChange
+ */
+
+ /**
+ * History.onHashChange(event)
+ * Trigger HTML5's window.onpopstate via HTML4 HashChange Support
+ */
+ History.onHashChange = function(event){
+ //History.debug('History.onHashChange', arguments);
+
+ // Prepare
+ var currentUrl = ((event && event.newURL) || History.getLocationHref()),
+ currentHash = History.getHashByUrl(currentUrl),
+ currentState = null,
+ currentStateHash = null,
+ currentStateHashExits = null,
+ discardObject;
+
+ // Check if we are the same state
+ if ( History.isLastHash(currentHash) ) {
+ // There has been no change (just the page's hash has finally propagated)
+ //History.debug('History.onHashChange: no change');
+ History.busy(false);
+ return false;
+ }
+
+ // Reset the double check
+ History.doubleCheckComplete();
+
+ // Store our location for use in detecting back/forward direction
+ History.saveHash(currentHash);
+
+ // Expand Hash
+ if ( currentHash && History.isTraditionalAnchor(currentHash) ) {
+ //History.debug('History.onHashChange: traditional anchor', currentHash);
+ // Traditional Anchor Hash
+ History.Adapter.trigger(window,'anchorchange');
+ History.busy(false);
+ return false;
+ }
+
+ // Create State
+ currentState = History.extractState(History.getFullUrl(currentHash||History.getLocationHref(),false),true);
+
+ // Check if we are the same state
+ if ( History.isLastSavedState(currentState) ) {
+ //History.debug('History.onHashChange: no change');
+ // There has been no change (just the page's hash has finally propagated)
+ History.busy(false);
+ return false;
+ }
+
+ // Create the state Hash
+ currentStateHash = History.getHashByState(currentState);
+
+ // Check if we are DiscardedState
+ discardObject = History.discardedState(currentState);
+ if ( discardObject ) {
+ // Ignore this state as it has been discarded and go back to the state before it
+ if ( History.getHashByIndex(-2) === History.getHashByState(discardObject.forwardState) ) {
+ // We are going backwards
+ //History.debug('History.onHashChange: go backwards');
+ History.back(false);
+ } else {
+ // We are going forwards
+ //History.debug('History.onHashChange: go forwards');
+ History.forward(false);
+ }
+ return false;
+ }
+
+ // Push the new HTML5 State
+ //History.debug('History.onHashChange: success hashchange');
+ History.pushState(currentState.data,currentState.title,encodeURI(currentState.url),false);
+
+ // End onHashChange closure
+ return true;
+ };
+ History.Adapter.bind(window,'hashchange',History.onHashChange);
+
+ /**
+ * 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);
+
+ // We assume that the URL passed in is URI-encoded, but this makes
+ // sure that it's fully URI encoded; any '%'s that are encoded are
+ // converted back into '%'s
+ url = encodeURI(url).replace(/%25/g, "%");
+
+ // Check the State
+ if ( History.getHashByUrl(url) ) {
+ 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
+ History.busy(true);
+
+ // Fetch the State Object
+ var newState = History.createStateObject(data,title,url),
+ newStateHash = History.getHashByState(newState),
+ oldState = History.getState(false),
+ oldStateHash = History.getHashByState(oldState),
+ html4Hash = History.getHash();
+
+ // Store the newState
+ History.storeState(newState);
+ History.expectedStateId = newState.id;
+
+ // Recycle the State
+ History.recycleState(newState);
+
+ // Force update of the title
+ History.setTitle(newState);
+
+ // Check if we are the same State
+ if ( newStateHash === oldStateHash ) {
+ //History.debug('History.pushState: no change', newStateHash);
+ History.busy(false);
+ return false;
+ }
+
+ // Update HTML4 Hash
+ if ( !History.isHashEqual(newStateHash, html4Hash) && !History.isHashEqual(newStateHash, History.getShortUrl(History.getLocationHref())) ) {
+ //History.debug('History.pushState: update hash', newStateHash, html4Hash);
+ History.setHash(newStateHash,false);
+ return false;
+ }
+
+ // Update HTML5 State
+ History.saveState(newState);
+
+ // Fire HTML5 Event
+ //History.debug('History.pushState: trigger popstate');
+ History.Adapter.trigger(window,'statechange');
+ History.busy(false);
+
+ // 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);
+
+ // We assume that the URL passed in is URI-encoded, but this makes
+ // sure that it's fully URI encoded; any '%'s that are encoded are
+ // converted back into '%'s
+ url = encodeURI(url).replace(/%25/g, "%");
+
+ // Check the State
+ if ( History.getHashByUrl(url) ) {
+ throw new Error('History.js does not support states with fragment-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
+ History.busy(true);
+
+ // Fetch the State Objects
+ var newState = History.createStateObject(data,title,url),
+ oldState = History.getState(false),
+ previousState = History.getStateByIndex(-2);
+
+ // Discard Old State
+ History.discardState(oldState,newState,previousState);
+
+ // Alias to PushState
+ History.pushState(newState.data,newState.title,newState.url,false);
+
+ // End replaceState closure
+ return true;
+ };
+
+ } // History.emulated.pushState
+
+
+
+ // ====================================================================
+ // Initialise
+
+ // Non-Native pushState Implementation
+ if ( History.emulated.pushState ) {
+ /**
+ * Ensure initial state is handled correctly
+ */
+ if ( History.getHash() && !History.emulated.hashChange ) {
+ History.Adapter.onDomLoad(function(){
+ History.Adapter.trigger(window,'hashchange');
+ });
+ }
+
+ } // History.emulated.pushState
+
+ }; // History.initHtml4
+
+ // Try and Initialise History
+ if ( typeof History.init !== 'undefined' ) {
+ History.init();
+ }
+
+})(window);
+/**
+ * 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||History.getLocationHref(),
+ 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 = (History.getLocationHref()).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;
+ };
+
+ /**
+ * History.getLocationHref(document)
+ * Returns a normalized version of document.location.href
+ * accounting for browser inconsistencies, etc.
+ *
+ * This URL will be URI-encoded and will include the hash
+ *
+ * @param {object} document
+ * @return {string} url
+ */
+ History.getLocationHref = function(doc) {
+ doc = doc || document;
+
+ // most of the time, this will be true
+ if (doc.URL === doc.location.href)
+ return doc.location.href;
+
+ // some versions of webkit URI-decode document.location.href
+ // but they leave document.URL in an encoded state
+ if (doc.location.href === decodeURIComponent(doc.URL))
+ return doc.URL;
+
+ // FF 3.6 only updates document.URL when a page is reloaded
+ // document.location.href is updated correctly
+ if (doc.location.hash && decodeURIComponent(doc.location.href.replace(/^[^#]+/, "")) === doc.location.hash)
+ return doc.location.href;
+
+ return doc.URL || doc.location.href;
+ };
+
+
+ // ====================================================================
+ // 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(oldState.url?decodeURIComponent(oldState.url):(History.getLocationHref()));
+ 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': encodeURIComponent(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()
+ * @param {Location=} location
+ * Gets the current document hash
+ * Note: unlike location.hash, this is guaranteed to return the escaped hash in all browsers
+ * @return {string}
+ */
+ History.getHash = function(location){
+ if ( !location ) location = document.location;
+ var href = location.href.replace( /^[^#]*/, "" );
+ return href.substr(1);
+ };
+
+ /**
+ * 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 = decodeURIComponent(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 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);
+
+ // 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 ( History.getHash() !== hash ) {
+ // 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+'#'+hash,false);
+ }
+ else {
+ // Normal hash apply
+ document.location.hash = hash;
+ }
+ }
+
+ // 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.encodeURIComponent(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(History.getLocationHref()),
+ 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||History.getLocationHref(),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(History.getLocationHref());
+ }
+
+ // The State did not exist in our store
+ if ( !newState ) {
+ // Regenerate the State
+ newState = History.createStateObject(null,null,History.getLocationHref());
+ }
+
+ // 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(History.getLocationHref(),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);
--- /dev/null
+/**
+ * History.js jQuery Adapter
+ * @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/>
+ */// Closure
+(function(a,b){"use strict";var c=a.History=a.History||{},d=a.jQuery;if(typeof c.Adapter!="undefined")throw new Error("History.js Adapter has already been loaded...");c.Adapter={bind:function(a,b,c){d(a).bind(b,c)},trigger:function(a,b,c){d(a).trigger(b,c)},extractEventData:function(a,c,d){var e=c&&c.originalEvent&&c.originalEvent[a]||d&&d[a]||b;return e},onDomLoad:function(a){d(a)}},typeof c.init!="undefined"&&c.init()})(window),function(a,b){"use strict";var c=a.document,d=a.setTimeout||d,e=a.clearTimeout||e,f=a.setInterval||f,g=a.History=a.History||{};if(typeof g.initHtml4!="undefined")throw new Error("History.js HTML4 Support has already been loaded...");g.initHtml4=function(){if(typeof g.initHtml4.initialized!="undefined")return!1;g.initHtml4.initialized=!0,g.enabled=!0,g.savedHashes=[],g.isLastHash=function(a){var b=g.getHashByIndex(),c;return c=a===b,c},g.isHashEqual=function(a,b){return a=encodeURIComponent(a).replace(/%25/g,"%"),b=encodeURIComponent(b).replace(/%25/g,"%"),a===b},g.saveHash=function(a){return g.isLastHash(a)?!1:(g.savedHashes.push(a),!0)},g.getHashByIndex=function(a){var b=null;return typeof a=="undefined"?b=g.savedHashes[g.savedHashes.length-1]:a<0?b=g.savedHashes[g.savedHashes.length+a]:b=g.savedHashes[a],b},g.discardedHashes={},g.discardedStates={},g.discardState=function(a,b,c){var d=g.getHashByState(a),e;return e={discardedState:a,backState:c,forwardState:b},g.discardedStates[d]=e,!0},g.discardHash=function(a,b,c){var d={discardedHash:a,backState:c,forwardState:b};return g.discardedHashes[a]=d,!0},g.discardedState=function(a){var b=g.getHashByState(a),c;return c=g.discardedStates[b]||!1,c},g.discardedHash=function(a){var b=g.discardedHashes[a]||!1;return b},g.recycleState=function(a){var b=g.getHashByState(a);return g.discardedState(a)&&delete g.discardedStates[b],!0},g.emulated.hashChange&&(g.hashChangeInit=function(){g.checkerFunction=null;var b="",d,e,h,i;return g.isInternetExplorer()?(d="historyjs-iframe",e=c.createElement("iframe"),e.setAttribute("id",d),e.style.display="none",c.body.appendChild(e),e.contentWindow.document.open(),e.contentWindow.document.close(),h="",i=!1,g.checkerFunction=function(){if(i)return!1;i=!0;var c=g.getHash(),d=g.getHash(e.contentWindow.document.location);return c!==b?(b=c,d!==c&&(h=d=c,e.contentWindow.document.open(),e.contentWindow.document.close(),e.contentWindow.document.location.hash=g.escapeHash(c)),g.Adapter.trigger(a,"hashchange")):d!==h&&(h=d,g.setHash(d,!1)),i=!1,!0}):g.checkerFunction=function(){var c=g.getHash();return c!==b&&(b=c,g.Adapter.trigger(a,"hashchange")),!0},g.intervalList.push(f(g.checkerFunction,g.options.hashChangeInterval)),!0},g.Adapter.onDomLoad(g.hashChangeInit)),g.emulated.pushState&&(g.onHashChange=function(b){var c=b&&b.newURL||g.getLocationHref(),d=g.getHashByUrl(c),e=null,f=null,h=null,i;return g.isLastHash(d)?(g.busy(!1),!1):(g.doubleCheckComplete(),g.saveHash(d),d&&g.isTraditionalAnchor(d)?(g.Adapter.trigger(a,"anchorchange"),g.busy(!1),!1):(e=g.extractState(g.getFullUrl(d||g.getLocationHref(),!1),!0),g.isLastSavedState(e)?(g.busy(!1),!1):(f=g.getHashByState(e),i=g.discardedState(e),i?(g.getHashByIndex(-2)===g.getHashByState(i.forwardState)?g.back(!1):g.forward(!1),!1):(g.pushState(e.data,e.title,encodeURI(e.url),!1),!0))))},g.Adapter.bind(a,"hashchange",g.onHashChange),g.pushState=function(b,c,d,e){d=encodeURI(d).replace(/%25/g,"%");if(g.getHashByUrl(d))throw new Error("History.js does not support states with fragement-identifiers (hashes/anchors).");if(e!==!1&&g.busy())return g.pushQueue({scope:g,callback:g.pushState,args:arguments,queue:e}),!1;g.busy(!0);var f=g.createStateObject(b,c,d),h=g.getHashByState(f),i=g.getState(!1),j=g.getHashByState(i),k=g.getHash();return g.storeState(f),g.expectedStateId=f.id,g.recycleState(f),g.setTitle(f),h===j?(g.busy(!1),!1):!g.isHashEqual(h,k)&&!g.isHashEqual(h,g.getShortUrl(g.getLocationHref()))?(g.setHash(h,!1),!1):(g.saveState(f),g.Adapter.trigger(a,"statechange"),g.busy(!1),!0)},g.replaceState=function(a,b,c,d){c=encodeURI(c).replace(/%25/g,"%");if(g.getHashByUrl(c))throw new Error("History.js does not support states with fragment-identifiers (hashes/anchors).");if(d!==!1&&g.busy())return g.pushQueue({scope:g,callback:g.replaceState,args:arguments,queue:d}),!1;g.busy(!0);var e=g.createStateObject(a,b,c),f=g.getState(!1),h=g.getStateByIndex(-2);return g.discardState(f,e,h),g.pushState(e.data,e.title,e.url,!1),!0}),g.emulated.pushState&&g.getHash()&&!g.emulated.hashChange&&g.Adapter.onDomLoad(function(){g.Adapter.trigger(a,"hashchange")})},typeof g.init!="undefined"&&g.init()}(window),function(a,b){"use strict";var c=a.console||b,d=a.document,e=a.navigator,f=a.sessionStorage||!1,g=a.setTimeout,h=a.clearTimeout,i=a.setInterval,j=a.clearInterval,k=a.JSON,l=a.alert,m=a.History=a.History||{},n=a.history;k.stringify=k.stringify||k.encode,k.parse=k.parse||k.decode;if(typeof m.init!="undefined")throw new Error("History.js Core has already been loaded...");m.init=function(){return typeof m.Adapter=="undefined"?!1:(typeof m.initCore!="undefined"&&m.initCore(),typeof m.initHtml4!="undefined"&&m.initHtml4(),!0)},m.initCore=function(){if(typeof m.initCore.initialized!="undefined")return!1;m.initCore.initialized=!0,m.options=m.options||{},m.options.hashChangeInterval=m.options.hashChangeInterval||100,m.options.safariPollInterval=m.options.safariPollInterval||500,m.options.doubleCheckInterval=m.options.doubleCheckInterval||500,m.options.storeInterval=m.options.storeInterval||1e3,m.options.busyDelay=m.options.busyDelay||250,m.options.debug=m.options.debug||!1,m.options.initialTitle=m.options.initialTitle||d.title,m.intervalList=[],m.clearAllIntervals=function(){var a,b=m.intervalList;if(typeof b!="undefined"&&b!==null){for(a=0;a<b.length;a++)j(b[a]);m.intervalList=null}},m.debug=function(){(m.options.debug||!1)&&m.log.apply(m,arguments)},m.log=function(){var a=typeof c!="undefined"&&typeof c.log!="undefined"&&typeof c.log.apply!="undefined",b=d.getElementById("log"),e,f,g,h,i;a?(h=Array.prototype.slice.call(arguments),e=h.shift(),typeof c.debug!="undefined"?c.debug.apply(c,[e,h]):c.log.apply(c,[e,h])):e="\n"+arguments[0]+"\n";for(f=1,g=arguments.length;f<g;++f){i=arguments[f];if(typeof i=="object"&&typeof k!="undefined")try{i=k.stringify(i)}catch(j){}e+="\n"+i+"\n"}return b?(b.value+=e+"\n-----\n",b.scrollTop=b.scrollHeight-b.clientHeight):a||l(e),!0},m.getInternetExplorerMajorVersion=function(){var a=m.getInternetExplorerMajorVersion.cached=typeof m.getInternetExplorerMajorVersion.cached!="undefined"?m.getInternetExplorerMajorVersion.cached:function(){var a=3,b=d.createElement("div"),c=b.getElementsByTagName("i");while((b.innerHTML="<!--[if gt IE "+ ++a+"]><i></i><![endif]-->")&&c[0]);return a>4?a:!1}();return a},m.isInternetExplorer=function(){var a=m.isInternetExplorer.cached=typeof m.isInternetExplorer.cached!="undefined"?m.isInternetExplorer.cached:Boolean(m.getInternetExplorerMajorVersion());return a},m.emulated={pushState:!Boolean(a.history&&a.history.pushState&&a.history.replaceState&&!/ Mobile\/([1-7][a-z]|(8([abcde]|f(1[0-8]))))/i.test(e.userAgent)&&!/AppleWebKit\/5([0-2]|3[0-2])/i.test(e.userAgent)),hashChange:Boolean(!("onhashchange"in a||"onhashchange"in d)||m.isInternetExplorer()&&m.getInternetExplorerMajorVersion()<8)},m.enabled=!m.emulated.pushState,m.bugs={setHash:Boolean(!m.emulated.pushState&&e.vendor==="Apple Computer, Inc."&&/AppleWebKit\/5([0-2]|3[0-3])/.test(e.userAgent)),safariPoll:Boolean(!m.emulated.pushState&&e.vendor==="Apple Computer, Inc."&&/AppleWebKit\/5([0-2]|3[0-3])/.test(e.userAgent)),ieDoubleCheck:Boolean(m.isInternetExplorer()&&m.getInternetExplorerMajorVersion()<8),hashEscape:Boolean(m.isInternetExplorer()&&m.getInternetExplorerMajorVersion()<7)},m.isEmptyObject=function(a){for(var b in a)return!1;return!0},m.cloneObject=function(a){var b,c;return a?(b=k.stringify(a),c=k.parse(b)):c={},c},m.getRootUrl=function(){var a=d.location.protocol+"//"+(d.location.hostname||d.location.host);if(d.location.port||!1)a+=":"+d.location.port;return 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b=="undefined"?!0:b,/[a-z]+\:\/\//.test(a)||(d==="/"?c=m.getRootUrl()+a.replace(/^\/+/,""):d==="#"?c=m.getPageUrl().replace(/#.*/,"")+a:d==="?"?c=m.getPageUrl().replace(/[\?#].*/,"")+a:b?c=m.getBaseUrl()+a.replace(/^(\.\/)+/,""):c=m.getBasePageUrl()+a.replace(/^(\.\/)+/,"")),c.replace(/\#$/,"")},m.getShortUrl=function(a){var b=a,c=m.getBaseUrl(),d=m.getRootUrl();return m.emulated.pushState&&(b=b.replace(c,"")),b=b.replace(d,"/"),m.isTraditionalAnchor(b)&&(b="./"+b),b=b.replace(/^(\.\/)+/g,"./").replace(/\#$/,""),b},m.getLocationHref=function(a){return 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b=m.normalizeState(a),c=b.hash,c},m.extractId=function(a){var b,c,d;return c=/(.*)\&_suid=([0-9]+)$/.exec(a),d=c?c[1]||a:a,b=c?String(c[2]||""):"",b||!1},m.isTraditionalAnchor=function(a){var b=!/[\/\?\.]/.test(a);return b},m.extractState=function(a,b){var c=null,d,e;return b=b||!1,d=m.extractId(a),d&&(c=m.getStateById(d)),c||(e=m.getFullUrl(a),d=m.getIdByUrl(e)||!1,d&&(c=m.getStateById(d)),!c&&b&&!m.isTraditionalAnchor(a)&&(c=m.createStateObject(null,null,e))),c},m.getIdByUrl=function(a){var c=m.urlToId[a]||m.store.urlToId[a]||b;return c},m.getLastSavedState=function(){return m.savedStates[m.savedStates.length-1]||b},m.getLastStoredState=function(){return m.storedStates[m.storedStates.length-1]||b},m.hasUrlDuplicate=function(a){var b=!1,c;return c=m.extractState(a.url),b=c&&c.id!==a.id,b},m.storeState=function(a){return m.urlToId[a.url]=a.id,m.storedStates.push(m.cloneObject(a)),a},m.isLastSavedState=function(a){var b=!1,c,d,e;return m.savedStates.length&&(c=a.id,d=m.getLastSavedState(),e=d.id,b=c===e),b},m.saveState=function(a){return m.isLastSavedState(a)?!1:(m.savedStates.push(m.cloneObject(a)),!0)},m.getStateByIndex=function(a){var b=null;return typeof a=="undefined"?b=m.savedStates[m.savedStates.length-1]:a<0?b=m.savedStates[m.savedStates.length+a]:b=m.savedStates[a],b},m.getHash=function(){var a=m.unescapeHash(d.location.hash);return a},m.unescapeString=function(b){var c=b,d;for(;;){d=a.unescape(c);if(d===c)break;c=d}return c},m.unescapeHash=function(a){var b=m.normalizeHash(a);return b=m.unescapeString(b),b},m.normalizeHash=function(a){var b=a.replace(/[^#]*#/,"").replace(/#.*/,"");return b},m.setHash=function(a,b){var c,e,f;return b!==!1&&m.busy()?(m.pushQueue({scope:m,callback:m.setHash,args:arguments,queue:b}),!1):(c=m.escapeHash(a),m.busy(!0),e=m.extractState(a,!0),e&&!m.emulated.pushState?m.pushState(e.data,e.title,e.url,!1):d.location.hash!==c&&(m.bugs.setHash?(f=m.getPageUrl(),m.pushState(null,null,f+"#"+c,!1)):d.location.hash=c),m)},m.escapeHash=function(b){var c=m.normalizeHash(b);return c=a.escape(c),m.bugs.hashEscape||(c=c.replace(/\%21/g,"!").replace(/\%26/g,"&").replace(/\%3D/g,"=").replace(/\%3F/g,"?")),c},m.getHashByUrl=function(a){var b=String(a).replace(/([^#]*)#?([^#]*)#?(.*)/,"$2");return b=m.unescapeHash(b),b},m.setTitle=function(a){var b=a.title,c;b||(c=m.getStateByIndex(0),c&&c.url===a.url&&(b=c.title||m.options.initialTitle));try{d.getElementsByTagName("title")[0].innerHTML=b.replace("<","<").replace(">",">").replace(" & "," & ")}catch(e){}return d.title=b,m},m.queues=[],m.busy=function(a){typeof a!="undefined"?m.busy.flag=a:typeof m.busy.flag=="undefined"&&(m.busy.flag=!1);if(!m.busy.flag){h(m.busy.timeout);var b=function(){var a,c,d;if(m.busy.flag)return;for(a=m.queues.length-1;a>=0;--a){c=m.queues[a];if(c.length===0)continue;d=c.shift(),m.fireQueueItem(d),m.busy.timeout=g(b,m.options.busyDelay)}};m.busy.timeout=g(b,m.options.busyDelay)}return m.busy.flag},m.busy.flag=!1,m.fireQueueItem=function(a){return a.callback.apply(a.scope||m,a.args||[])},m.pushQueue=function(a){return m.queues[a.queue||0]=m.queues[a.queue||0]||[],m.queues[a.queue||0].push(a),m},m.queue=function(a,b){return typeof a=="function"&&(a={callback:a}),typeof b!="undefined"&&(a.queue=b),m.busy()?m.pushQueue(a):m.fireQueueItem(a),m},m.clearQueue=function(){return m.busy.flag=!1,m.queues=[],m},m.stateChanged=!1,m.doubleChecker=!1,m.doubleCheckComplete=function(){return m.stateChanged=!0,m.doubleCheckClear(),m},m.doubleCheckClear=function(){return m.doubleChecker&&(h(m.doubleChecker),m.doubleChecker=!1),m},m.doubleCheck=function(a){return m.stateChanged=!1,m.doubleCheckClear(),m.bugs.ieDoubleCheck&&(m.doubleChecker=g(function(){return m.doubleCheckClear(),m.stateChanged||a(),!0},m.options.doubleCheckInterval)),m},m.safariStatePoll=function(){var b=m.extractState(d.location.href),c;if(!m.isLastSavedState(b))c=b;else return;return c||(c=m.createStateObject()),m.Adapter.trigger(a,"popstate"),m},m.back=function(a){return a!==!1&&m.busy()?(m.pushQueue({scope:m,callback:m.back,args:arguments,queue:a}),!1):(m.busy(!0),m.doubleCheck(function(){m.back(!1)}),n.go(-1),!0)},m.forward=function(a){return a!==!1&&m.busy()?(m.pushQueue({scope:m,callback:m.forward,args:arguments,queue:a}),!1):(m.busy(!0),m.doubleCheck(function(){m.forward(!1)}),n.go(1),!0)},m.go=function(a,b){var c;if(a>0)for(c=1;c<=a;++c)m.forward(b);else{if(!(a<0))throw new Error("History.go: History.go requires a positive or negative integer passed.");for(c=-1;c>=a;--c)m.back(b)}return m};if(m.emulated.pushState){var o=function(){};m.pushState=m.pushState||o,m.replaceState=m.replaceState||o}else m.onPopState=function(b,c){var e=!1,f=!1,g,h;return m.doubleCheckComplete(),g=m.getHash(),g?(h=m.extractState(g||d.location.href,!0),h?m.replaceState(h.data,h.title,h.url,!1):(m.Adapter.trigger(a,"anchorchange"),m.busy(!1)),m.expectedStateId=!1,!1):(e=m.Adapter.extractEventData("state",b,c)||!1,e?f=m.getStateById(e):m.expectedStateId?f=m.getStateById(m.expectedStateId):f=m.extractState(d.location.href),f||(f=m.createStateObject(null,null,d.location.href)),m.expectedStateId=!1,m.isLastSavedState(f)?(m.busy(!1),!1):(m.storeState(f),m.saveState(f),m.setTitle(f),m.Adapter.trigger(a,"statechange"),m.busy(!1),!0))},m.Adapter.bind(a,"popstate",m.onPopState),m.pushState=function(b,c,d,e){if(m.getHashByUrl(d)&&m.emulated.pushState)throw new Error("History.js does not support states with fragement-identifiers (hashes/anchors).");if(e!==!1&&m.busy())return m.pushQueue({scope:m,callback:m.pushState,args:arguments,queue:e}),!1;m.busy(!0);var f=m.createStateObject(b,c,d);return m.isLastSavedState(f)?m.busy(!1):(m.storeState(f),m.expectedStateId=f.id,n.pushState(f.id,f.title,f.url),m.Adapter.trigger(a,"popstate")),!0},m.replaceState=function(b,c,d,e){if(m.getHashByUrl(d)&&m.emulated.pushState)throw new Error("History.js does not support states with fragement-identifiers (hashes/anchors).");if(e!==!1&&m.busy())return m.pushQueue({scope:m,callback:m.replaceState,args:arguments,queue:e}),!1;m.busy(!0);var f=m.createStateObject(b,c,d);return m.isLastSavedState(f)?m.busy(!1):(m.storeState(f),m.expectedStateId=f.id,n.replaceState(f.id,f.title,f.url),m.Adapter.trigger(a,"popstate")),!0};if(f){try{m.store=k.parse(f.getItem("History.store"))||{}}catch(p){m.store={}}m.normalizeStore()}else m.store={},m.normalizeStore();m.Adapter.bind(a,"beforeunload",m.clearAllIntervals),m.Adapter.bind(a,"unload",m.clearAllIntervals),m.saveState(m.storeState(m.extractState(d.location.href,!0))),f&&(m.onUnload=function(){var a,b;try{a=k.parse(f.getItem("History.store"))||{}}catch(c){a={}}a.idToState=a.idToState||{},a.urlToId=a.urlToId||{},a.stateToId=a.stateToId||{};for(b in m.idToState){if(!m.idToState.hasOwnProperty(b))continue;a.idToState[b]=m.idToState[b]}for(b in m.urlToId){if(!m.urlToId.hasOwnProperty(b))continue;a.urlToId[b]=m.urlToId[b]}for(b in m.stateToId){if(!m.stateToId.hasOwnProperty(b))continue;a.stateToId[b]=m.stateToId[b]}m.store=a,m.normalizeStore(),f.setItem("History.store",k.stringify(a))},m.intervalList.push(i(m.onUnload,m.options.storeInterval)),m.Adapter.bind(a,"beforeunload",m.onUnload),m.Adapter.bind(a,"unload",m.onUnload));if(!m.emulated.pushState){m.bugs.safariPoll&&m.intervalList.push(i(m.safariStatePoll,m.options.safariPollInterval));if(e.vendor==="Apple Computer, Inc."||(e.appCodeName||"")==="Mozilla")m.Adapter.bind(a,"hashchange",function(){m.Adapter.trigger(a,"popstate")}),m.getHash()&&m.Adapter.onDomLoad(function(){m.Adapter.trigger(a,"hashchange")})}},m.init()}(window)
\ No newline at end of file
projects / limn-bak.git / commitdiff